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208-053
W0 -Qs) by Date: 11/18/2019 Transmittal Number: 93714 0 32003 BPXA WELL DATA TRANSMITTAL Enclosed is a disc with the requested core photos and analysis. If you have any questions please contact Merion Kendall: 907-564-5216; merion.kendall@bp.com. API WelINO WI Permit Well Nm Core Core Analysis, — — Photos Description, etc 50029229780000 2001620 PRUDHOE BAY UN BORE Z-101 50029229880000 2001960 PRUDHOE BAY UN AURO 5-104 50029229950000 2002080 PRUDHOE BAY UNIT Z-39 J 50029230080000 2010590 PRUDHOE BAY UN BORE V-100 50029231610000 2031030 PRUDHOE BAY UN BORE V-111 J 50029233880000 2080530 PRUDHOE BAY UN ORIN L-205 L -205P61* *Plug -back analysis located in BP archive database. Please sign and email a copy of this transmittal to. GANCPDC b 365.onmicrosoft.com Thank you, Mer Merion Xendad SIM Specialist 46- SIM 44. BP Exploration Alaska1900 E. Benson B1vd.IRoom: 716BIAnchorage, AK Subsurface Information Management 900 E. Benson Blvd. PO Box 196612 Anchorage, AK 99519-6612 JAN 3 0 2020 11 A®G/��, C STATE OF ALASKA R E(�'p*'` EIV SKA OIL AND GAS CONSERVATION COMMIS Lc, WELL MPLETION OR RECOMPLETION REPO/PAND LOG la. Well Status: Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned I11 • Suspended 0 1b.Well cifir� ft p�oraTOry� El 25.105 20AAC 25.110 U Developm GINJ 0 WINJ 0 WAG 0 WDSPL 0 No.of Completions: Zero • Service IIA��$$//yy����Igg(/��..QQ�. ����((ppl!����❑ 2. Operator Name: 6. Date Comp.,Susp.,or Aband.: 14.PermR-filDtiNI�wAMbbr�ry BP Exploration(Alaska),Inc 12/2/2017 • 208-053• 317-376 3. Address: 7. Date Spudded: 15. API Number: P.O.Box 196612 Anchorage,AK 99519-6612 4/27/2008 50-029-23388-00-00 • 4a. Location of Well(Governmental Section): 8. Date TD Reached: 16. Well Name and Number: 6/4/2008 PBU L-205 Surface: 2361'FSL,3786'FEL,Sec.34,T12N,R11E,UM • 9 Ref Elevations KB 76.10 17. Field/Pool(s): 1619'FSL,387'FEL,Sec.33,T12N,R11 E,UM GL 47.60 BF 48.83 • PRUDH4�,,E�,,BAY,§CHRADER Top of Productive Interval: /.:ar F f , Total Depth: 2117'FNL,4950'FEL,Sec.03,T11N,R11E,UM 10. Plug Back Depth(MD/TVD): 18. Property Designation: C) • 2925'/2655' • ADL 028239&028241 4b. 4b.Location of Well(State Base Plane Coordinates,NAD 27): 11. Total Depth(MD/TVD). 19. DNR Approval Number: Surface:x- 583130 . y- 5978082 • Zone - ASP 4 • 8953'/4360' • 00-001 TPI: x- 581260 y- 5977319 Zone - ASP 4 12. SSSV Depth(MD/TVD): 20 Thickness of Permafrost MD/TVD: Total Depth:x- 582025 y- 5973591 Zone - ASP 4 None 1900'(Approx.) 5. Directional or Inclination Survey: Yes 0 (attached) No 0 13. Water Depth,if Offshore: 21, Re-drill/Lateral Top Window MD/TVD: Submit electronic and printed information per 20 AAC 25.050 N/A (ft MSL) N/A 22. Logs Obtained List all logs run and,pursuant to AS 31.05.030 and 20 AAC 25.071,submit all electronic data and printed logs within 90 days of completion, suspension,or abandonment,whichever occurs first.Types of logs to be listed include,but are not limited to:mud log,spontaneous potential,gamma ray,caliper, resistivity,porosity,magnetic resonance,dipmeter,formation tester,temperature,cement evaluation,casing collar locator,jewelry,and perforation record. Acronyms may be used.Attach a separate page if necessary MWD/GR,GR/RES/NEU/AZI Density/Density Caliper PWD,MDT,USIT,MWD/GR/RES/AZI Density!NEU/AIM/PWD 23. CASING,LINER AND CEMENTING RECORD CASING wr.PER GRADE SETTING DEPTH MD SETTING DEPTH ND HOLE SIZE CEMENTING RECORD AMOUNT FT. PULLED TOP BOTTOM TOP BOTTOM 20" 129# X-56 29' 153' 29' 153' Driven 10-3/4" 45.5# L-80 29' 3026' 29' 2739' 13-1/2" 684 sx DeepCrete,402 sx Class'G' 7-5/8" 29.7# L-80 3004' 5582' 27' 4466' 9-7/8" 413 sx Class'G' 2977' 4-1/2" 12.6# 13Cr85/L-80 3662' 8953' 3284' 4360' 6-3/4" 165 sx Class'G',Uncemented Slotted Liner 24. Open to production or injection? Yes 0 No 0 25. TUBING RECORD If Yes,list each interval open(MD/VD of Top and Bottom;Perforation GRADE DEPTH SET(MD) PACKER SET(MD/TV Size and Number): 4-1/2"12.6#13Cr80 3540'-3669' 3561'/3197' /1/4-NiO0Ni*V 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. JAN11, SCANNED J N G Lb .) Was hydraulic fracturing used during completion? Yes 0 No 0 Per 20 AAC 25.283(i)(2)attach electronic and printed ti(2'11- information DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED Ir L See Attached 27. PRODUCTION TEST Date First Production: Not on Production Method of Operation(Flowing,gas lift,etc.):N/A Date of Test: Hours Tested: Production for Oil-Bbl: Gas-MCF: Water-Bbl: Choke Size: Gas-Oil Ratio: Test Period ...41s Flow Tubing Casing Press: Calculated Oil-Bbl: Gas-MCF: Water-Bbl: Oil Gravity-API(torr): Press 24 Hour Rate �► Form 10-407 Revised 5!2017 CONTINUED ON PAGE 2 Submit ORIGINAL only 28. CORE DATA • Conventional Core(s) Yes 0 No ' • Sidewall Cores Yes 0 No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed).Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 25.071. 29. GEOLOGIC MARKERS(List all formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Permafrost-Top Well Tested? Yes 0 No IZ Permafrost-Base If yes,list intervals and formations tested,briefly summarizing test results.Attach Top of Productive Interval 5096' 4330' separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Ugnu 3130' 2827' Schrader Bluff NA 4617' 4065' Schrader Bluff NB 4652' 4089' Schrader Bluff NC 4703' 4122' Schrader Bluff NE 4714' 4129' Schrader Bluff NF 4799' 4181' Schrader Bluff OA 4868' 4220' Schrader Bluff OBa 5001' 4287' Schrader Bluff OBb 5096' 4330' Schrader Bluff OBc 5239' 4385' Schrader Bluff OBd 5423' 4437' Schrader Bluff OBc(Invert) 5944' 4439' Schrader Bluff OBb 6169' 4391' Schrader Bluff OBa 7516' 4345' Schrader Bluff OBb(Revert) 7642' 4346' Formation at total depth: Schrader Bluff OBb 7642' 4346' 31. List of Attachments: Summary of Pre-Rig Work,Summary of Daily Drilling Reports,Wellbore Schematic Diagram Information to be attached includes,but is not limited to:summary of daily operations,wellbore schematic,directional or inclination survey,core analysis, paleontological report,production or well test results,per 20 AAC 25.070. 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Authorized Name: Lastufka,Joseph N Contact Name: Thompson,Jacob Authorized Title: Info and Data troller Contact Email: Jacob.Thompson©BP.com Authorized Signature: Date: t249.1/I/ Contact Phone: +1 907 564 5579 Jam• INSTRUCTIONS General:This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska.Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. All laboratory analytical reports regarding samples or tests from a well must be submitted to the AOGCC,no matter when the analyses are conducted. Item 1a. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated.Each segregated pool is a completion. Item 1 b.Well Class Service wells:Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disp,Water Supply for Injection,Observation or Other. Item 4b.TPI(Top of Producing Interval). Item 9. The Kelly Bushing and Ground Level elevations in feet above mean sea level.Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 15.The API number reported to AOGCC must be 14 digits(ex:50-029-20123-00-00). Item 20.Report true vertical thickness of permafrost in Box 20.Provide MD and TVD for the top and base of permafrost in Box 29. Item 22.Review the reporting requirements of 20 AAC 25.071 and,pursuant to AS 31.05.030,submit all electronic data and printed logs within 90 days of completion,suspension,or abandonment,whichever occurs first. Item 23.Attached supplemental records should show the details of any multiple stage cementing and the location of the cementing tool. Item 24.If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26.(Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27.Method of Operation:Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-in,or Other(explain). Item 28.Provide a listing of intervals cored and the corresponding formations,and a brief description in this box.Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30.Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box.Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Item 31.Pursuant to 20 AAC 25.070,attach to this form:well schematic diagram,summary of daily well operations,directional or inclination survey,and other tests as required including,but not limited to:core analysis,paleontological report,production or well test results. Form 10-407 Revised 5/2017 Submit ORIGINAL Only • • 1/8/18 Per Joe Lastufka,the TPI location data for well L-205 and all of it's laterals (1-5) were incorrectly identified (by another person) on the 10-407's for completion.The TPI location data submitted with the 10-407's for abandonment are correct and have been entered into RBDMS. Liz Link • • WELL NAME: L-205 26. Acid, Fracture, Cement Squeeze, Etc. Depth Interval (MD) Amount & Kind of Material Used 4585' Set CIBP 4558' 17.2 Gal Cement 3540' Cut& Pull Tubing 3004' Cut& Pull 7-5/8" Casing 2953' Set CIBP 2925' Set Whipstock • • Daily Report of Well Operations L-205 ACTIVITYDATE SUMMARY T/I/0=1050/940/100, Temp=Sl. PPPOT-T(PASS), PPPOT-IC (PASS), pre RST. PPPOT-T: Stung into test port(100 psi), bled to 0 psi. Monitored for 10 min, no change in pressure. Functioned LDS, all moved freely (1"). Torqued to 400 lb/ft. Pumped through void, good returns. Pressured void to 5000 psi for 30 min test, lost 150 psi in 15 min, lost 0 psi in second 15 min (PASS). Bled void to 0 psi. PPPOT-IC: Stung into test port(0+ psi), bled to 0 psi. Monitored for 10 min, no change in pressure. Functioned LDS, all moved freely (1"). Torqued to 400 lb/ft. Pumped through void, good returns. Pressured void to 3500 psi for 30 min test, lost 100 psi in 15 min, lost 50 9/20/2017 psi in second 15 min (PASS). Bled void to 0 psi. ***WELL SHUT IN ON ARRIVAL*** (Sidetrack) DRIFT W/20' x 3.70" DMY WHIPSTOCK&2.00" S. BAILER, STOP PER PROGRAM @ 4600' SLM 10/15/2017 ***CONT. ON 10/16/17 WSR*** ***CONT. FROM 10/15/17 WSR*** (Sidetrack) SET 4-1/2"X-CATCHER IN X-NIPPLE @ 3486' MD PULL BK-OGLV FROM ST#1 @ 3338' MD PULL EMPTY X-CATCHER FROM X-NIPPLE @ 3486' MD ***WELL LEFT SHUT IN, PAD-OP NOTIFIED*** 10/16/2017 ****ST#1 GLM HAS AN OPEN POCKET FOR FUTURE PUMPING OPERATIONS**** T/I/0=1000/1000/100 Temp=S/I (LRS Unit 70 -Assist E-line: Load Well Pre CIBP/Cement Dump) Pumped 10 bbls meth followed by 282 bbls 1%KCL down TBG for load and kill. Pumped 3bbls meth folowed by 43 bbls DSL down TBG for FP. FP tag and caution tag hung on WV. E-Line in control of well upon departure. CV's OTG 10/22/2017 FWHP= 700/1200/600 ***JOB STARTED ON 22-OCTOBER-2017*** (SLB ELINE SET CIBP/CEMENT BAILER) WELL SHUT IN ON ARRIVAL. RUN 1: RIH W/ BAKER 10 SETTING TOOL/4.5"WFD CIBP. SET MID ELEMENT CIBP AT 4586, CCL TO MID ELEMENT = 7', CCL STOP DEPTH = 4579'. TOP OF CIBP @ 4585. S/D AND TAGGED PLUG. RUN 2: RIH W/32' CEMENT DUMP BAILER AND DUMPED 6.8' OF CEMENT ON TOP OF PLUG. TOP CEMENT LEVEL=4578'. LOG CORRELATED TO 4.5" SCAB LINER TALLY DATED 09-NOVEMBER-2011 10/22/2017 ***JOB CONTINUED ON 23-OCTOBER-2017*** ***JOB CONTINUED FROM 22-OCTOBER-2017*** (SLB ELINE CEMENT BAILER) WELL OPEN FROM CONTINUATION OF PREVIOUS DAY OPERATTIONS. RUN 3: RIH W/32' CEMENT DUMP BAILER AND DUMPED 6.8' OF CEMENT. TOTAL CUMULATIVE CEMENT = 13.6'. TOP OF CEMENT=4571.4'. RUN 4: RIH W/32' CEMENT DUMP BAILER AND DUMPED 6.8' OF CEMENT. TOTAL CUMULATIVE CEMENT= 20.4'. TOP OF CEMENT= 4564.6'. RUN 5: RIH W/32' CEMENT DUMP BAILER AND DUMPED 6.8' OF CEMENT. TOTAL CEMENT LEVEL=4558'. POOH. TOTAL CEMENT DUMPED 17.2 GALLONS. LOG CORRELATED TO 4.5" SCAB LINER TALLY DATED 09-NOVEMBER-2011. RDMO. WELL SHUT IN ON DEPARTURE. NOTIFY PAD OP AND HAND OVER RAP ON DEPARTURE. 10/23/2017 ***JOB COMPLETED ON 23-OCTOBER-2017*** • • Daily Report of Well Operations L-205 T/I/O=134/980/vac Temp= S/I (LRS unit 70-Circ Out/Sidetrack) Pre-heat 260 bbls diesel tanker to 50*. Unload well down L-114 flow line. Pumping down TBG up IA through choke trailer down hard line. Spear in with 5 bbls of 60/40 followed by 278 bbls of 130* H2O followed by 150 bbls of 50*diesel. F-protected F-line L-114 with 10 bbls of 60/40, shut Inlet & choke & psi up to 500 psi with .1 bbl of 60/40. CMIT TxIA FAILED @ T/IA 2051/2064 psi (Max Applied psi 2200 Target psi 2000 psi) 1st test: 1st 15 min TP lost 135 &the IA lost 132 psi. RE-psi with a bump. 2nd test: 1st 15 min TP lost 90 psi & IA lost 90 psi; 2nd 15 min TP lost 72 psi IAP lost 72 psi for a total of 162/162 psi in 30 min. RE-psi with a bump. 3rd test: 1st 15 min TP lost 75 psi IAP lost 76 psi 2nd 15 min TP lost 58 psi IAP lost 60 psi for a total of 133/136 psi in 30 min. Bleed well head psi down & rig down for hardline crew to rig hardline down and let well stabilize. LRS or DHD will return to re-perform CMIT. Hardline crew on well on dep. Wing shut, swab 10/26/2017 shut; ssv and master open IA shut OA open AFE&Tags hung. Final Whp's=393/404/vac ***WELL SHUT IN ON ARRIVAL***(side track) RAN 3.70" CENT, 2 1/2" SAMPLE BAILER TO 4,538' SLM (no sample) TAGGED TOP OF CEMENT W/2" CENT, 1 1/2" SAMPLE BAILER @ 4,543' SLM 10/27/2017 ***WELL LEFT S/I UPON DEPARTURE, PAD OP NOTIFIED OF WELL STATUS*** T/I/O = 340/310Nac. Temp = SI. CMIT TxIA PASSED to 2130/2121 psi, target 2000 psi max 2200 psi. ALP = 1500 psi, SI @ CV. T FL @ 90' 1.3 bbls, IA FL @ surface. Grease crew serviced WV and IA AL valve. Bled TP from 340 psi to 50 psi all gas, shut in when fluid to surface. Used 2 bbls of diesel to pressure TxIA to 2210/2200 psi. 1st test lost 62/61 psi, 2nd test lost 18/18 psi, 80/79 psi total in 30 min. Bled TP to 200 psi returned 2 bbls. Tags hung. Final WHPs = 200/200/vac. 10/28/2017 SV, WV, SSV= C. MV= 0. IA, OA= OTG. 14:00 T/I/O = SSV/250/0 TEMP = SI, PPPOT-T(PASS) PPPOT-IC (PASS) Pre Rig PPPOT-T: Stung into test void, 0 psi on void. Monitored for 10 min, no change in pressure. Function all LDS, all moved freely. torque all LDS to 450 ft/lbs. Pump though void, good returns. Pressure void to 5,000 psi for 30 min test. Lost 100 psi in 15 min, lost 0 psi in second 15 min (PASS). Bled void to 0 psi R/D test equipment PPPOT-IC: Stung into test void, 0 psi on void. Monitored for 10 min, no change in pressure. Function all LDS, all moved freely. Torque all LDSto 450 ft/lbs. Unable to pump through void. Pressure void to 3,500 psi, for 30 min test. Lost 50 psi in 15, lost 0 psi in second 15 10/30/2017 min (PASS). Bled void to 0 psi. ***WELL S/I ON ARRIVAL*** (SLB ELINE TBG JET CUT) INITIAL T/I/O =270/250/0. MIRU, LPT/HPT= PASS. RUN 1: RIH W/ HEAD(FN 1-3/8")/CCL/WB(X2)/WPSA/SHOCK SUB(X3)/4-1/2" JET CUTTER. OAL= 22.4'. OAW= 203 LBS. MAX O.D. = 3.65". SHOOT JET CUTTER AT 3540'. GOOD INDICATION OF SHOT. CCL TO TOP SHOT 20.7'. CCL STOP DEPTH = 3519.3'. POOH, RDMO. FINAL T/I/O =40/50/0 10/31/2017 ***JOB COMPLETE ON 31-OCTOBER-2017. WELL LEFT S/I ON DEPARTURE*** T/I/O= 77/80Nac Temp= S/I (SIDE TRACK) Pumped 2.4 bbls diesel down IA to 1810 psi, 11/1/2017 Monitor pressure to stabilize, ***WSR Continue on 11-02-17*** i • Daily Report of Well Operations L-205 ***WSR Continued from 11-01-17*** CMIT-TxIA PASSED @ 2137/2138 psi, Max Applied Pressure= 2200 psi, Target Pressure= 2000 psi, (SIDE TRACK) CMIT-TxIA= Pumped .5 bbls (total of 3 bbls) diesel down IA to reach test pressure, T/IA lost 35/34 psi in 1st 15 min and 15/14 psi in 2nd 15 min for a total loss of 50/48 psi in 30 min test, Bleed T/IA pressure, Bled back— 3 bbls, OA Integrity Test= Pumped 2.4 bbls crude down OA to reach 1195 psi, Monitor pressure for 5 min, Pressure dropped to 1150 psi, No returns to surface, Bleed OAP, Bled back— 1.3 bbls, AFE sign &tags hung on well, Valve position @ 11/2/2017 departure-WV, SV, SSV, AL= Closed MV= Open IA& OA= OTG, FWHP=22/26/0 T/I/0=100/1100/400 Set 4" CIW"H" BPV#152 Pre-Parker 272. FWP's BPV/1100/400 see 11/5/2017 log for details. T/I/BPV/0/0 R/D production tree to 4" Dryhole tree, Temp#97. Piggybacked IA&OA 11/8/2017 valves, Temp#08 _. FWP's BPV/0/0/ see log for details. T/I/O = BPV/0/0. Temp = SI. Bleed IA& OA to 0 psi. (Pre-Rig). IA&OA @ gauge 0, no bleed required. Well house, flow line production riser, SSV, scaffold removed. IA& OA have 2 double casing valves installed @ the 9 O'clock position. OA FL @ Surface . 11/13/2017 SV, WV= C. MV= O. IA, OA= OTG. 23:00 T/I/O = BPV/0/10. Temp = SI. WHPs (pre RIG). Scaffold &flowline removed. Rig well house installed on well. 11/26/2017 SV= C. WV, MV, SSV= O. IA, OA= OTG. 12:00 • • North America-ALASKA-BP Page 1 Operation Summary Report Common Well Name:L-205 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: X3-018F8-C:(2,979,366.00) Project:Prudhoe Bay Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:00AM Rig Release: Rig Contractor:PARKER DRILLING CO. BPUOI:USA00001709 Active datum:L-205A ACTUAL©94.43usft(above Mean Sea Level) Date From-To Hrs Task Code NPT Total Depth Phase Description of Operations (hr) (usft) 11/27/2017 12:00 - 19:00 7.00 RIGD P PRE GENERAL RIG DOWN OPERATIONS -CONTINUE TO BLOW DOWN AND RIG DOWN LINES -DISCONNECT INNER CONNECTS -SKID RIG FLOOR -LAY OVER DERRICK -SEPARATE MODULES AND STAGE IN 'PREPARATION FOR MOVE HELD PJSM WITH RIG CREW,TOOL SERVICE AND SECURITY TO DISCUSS RIG MOVE. 19:00 - 00:00 5.00 RIGU P PRE 'MOVE RIG MODULES FROM S-PAD TOWARDS L-PAD -ON SPINE ROAD FROM 21:00 TO 00:00 11/28/2017 00:00 - 03:30 3.50 RIGU P PRE CONTINUE TO MOVE RIG TO L-PAD ALONG L AND V-PAD ACCESS ROAD 03:30 - 05:00 1.50 RIGU P PRE STAGE DRILL MOD ON TOP OF TRANSISTION MATS.REMOVE ANNULAR DIVERTER AND PICK UP 7-5/8"RAMS AND TREE TO BOP DECK. 05:00 - 07:00 2.00 RIGU --P PRE SPOT DRILL MOD OVER L-205A.MATE UTILITY MOD AND MUD MOD TO DRILL MOD. 07:00 - 08:00 1.00 RIGU P PRE HOOK UP INTERCONNECTS AND RIG UP MODS 08:00 - 08:30 0.50 RIGU r` P PRE RAISE DERRICK WITH 525 KLBS OFF THE F RACK 08:30 - 09:00 0.50 RIGU P PRE SKID RIG FLOOR.RAISE PIPE CAT.SKID HAUNCH. 09:00 - 16:00 7.00 RIGU P PRE GENERAL RIG-UP OPERATIONS: -RIG-UP RIG FLOOR,BRIDLE DOWN BLOCKS -PERFORM API DERRICK INSPECTION -HOOK UP MUD MOD INTERCONNECT -INSTALL OFFLINE MOUSEHOLES -BRING NOV WIRED DRILL PIPE CONTROL PANEL TO LER -HANG RIG TONGS -PRESSURE TEST MUD LINE TO 3500 PSI 16:00 - 17:00 1.00 RIGU P PRE PRESSURE TEST BPV FROM BELOW TO 2000 PSI FOR 5 MIN(PASS) -SEE ATTACHED TEST CHART -REVIEW PRESSURE CROSSCHECK PRIOR TO TEST PERFORM RIG WALKAROU ND AND ACCEPT RIG AT 16:00 HRS 17:00 - 18:30 1.50 RIGU P PRE NIPPLE DOWN TREE AND ADAPTER FLANGE PER FMC REP -FUNCTION AND INSPECT LOCK DOWN SCREWS AND GLAND NUTS -CLEAN AND INSPECT HANGER THREADS 18:30 19:30 1.00 RIGU N PRE INSTALL BLANKING PLUG ASSEMBLY -DUE TO POSITION OF HEAT TRACE LINE ON TUBING HANGER,4-1/2 IF(BOX)X 4-1/2"TCII (PIN)CROSSOVER WOULD NOT FIT.INSTALL LOWER CROSSOVER 3-1/2 IF(BOX)X 4-1/2" TCII AND UPPER CROSSOVER 4-1/2 IF(BOX) X 3-1/2 IF(PIN). Printed 12/11/2017 3:52:48PM *All depths reported in Drillers Depths* North America-ALASKA-BP ' Page 2 Operation Summary Report Common Well Name:L-205 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: X3-018F8-C:(2,979,366.00) Project:Prudhoe Bay Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:00AM Rig Release: Rig Contractor:PARKER DRILLING CO. BPUOI:USA00001709 Active datum:L-205A ACTUAL @94.43usft(above Mean Sea Level) Date From-To Hrs Task Code NPT Total Depth Phase Description of Operations (hr) (usft) 19:30 - 23:00 3.50 RIGU P PRE NIPPLE UP BOPE AND HIGH PRESSURE RISER -LOWER RISER SPOOLS AND BOPE -TORQUE BOLTS TO SPEC -OBTAIN RKB MEASUREMENTS INSTALL TURNBUCKLES AND FLOW RISER 23:00 - 00:00 1.00 RIGU C STRUCT BEGIN TOP DRIVE MODIFICATION FOR WIRED DRILL PIPE: SIMOPS: -CHANGE UPPER RAMS TO 7-5/8"FIXED PREVENTATIVE MAINTENANCE ON BOP: .OPEN AND INSPECT ALL RAM CAVITIES -PERFORM QUADCO PRE-SPUD INSPECTION PRIOR TO TAKING ON FLUID TEST CHOKE MANIFOLD OFFLINE 11/29/2017 00:00 - 09:00 9.00 RIGU C STRUCT CONTINUE TOP DRIVE MODIFICATION FOR WIRED DRILL PIPE -FINISH DRILLING HOLES IN TORQUE ARRESTER FOR ZONAL MANAGEMENT SENSOR -INSTALL TORQUE ARRESTER ONTO THE RLA -INSTALL PRE-MADE UP UPPER IBOP/ LOWER IBOP/DATA SAVER/SAVER SUB ASSEMBLY -FUNCTION TEST AND INSPECT TOP DRIVE SIMOPS: HOLD RIG EVACUATION DRILL W/AAR •-HOLD PRE-SPUD MEETING WITH HUNDLEY'S CREW -CHANGE UPPER RAMS TO 7-5/8"FIXED -PREVENTATIVE MAINTENANCE ON BOP: OPEN AND INSPECT ALL RAM CAVITIES •-PRESSURE TEST THE CHOKE MANIFOLD VALVES OFF-LINE,250/3500 PSI FOR 5 CHARTED MIN EACH 09:00 - 11:00 2.00 BOPSUR P PRE RIG UP TO TEST BOPE. -FILL SYSTEM WITH WATER AND PURGE AIR. -PERFORM A SHELL TEST TO 3500 PSI FOR 5 MIN;GOOD TEST. -RE-TORQUE ALL BOLTS ON FLANGES AND BOP RAM DOORS 11:00 - 16:00 5.00 BOPSUR P PRE TEST BOPE TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH PER BP AND AOGCC REQUIREMENTS -TEST WITH 4",5"AND 7-5/8"TEST JOINTS -TEST ALARMS,PVT AND FLOW SHOW -TEST RAM LOCKS,HIGH/LOW BYPASS FUNCTION AND POWER BLACK-OUT -ALL TESTS PASS,SEE ATTACHED TEST CHARTS -TEST WITNESS WAIVED BY AOGCC REP ADAM EARL 16:00 - 17:00 1.00 BOPSUR P PRE PICKUP,INSTALL DUTCH RISER AND RUN IN LOCK DOWNS -CLOSE ANNULAR PREVENTER ON DUTCH RISER -PICK UP LUBRICATOR AND EXTENSIONS Printed 12/11/2017 3:52:48PM *AII depths reported in Drillers Depths* North America-ALASKA-BP . Page 3 qr�O Operation Summary Report (/ Common Well Name:L-205 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: X3-018F8-C:(2,979,366.00) Project:Prudhoe Bay Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:00AM Rig Release: Rig Contractor:PARKER DRILLING CO. I BPUOI:USA00001709 Active datum:L-205A ACTUAL @94.43usft(above Mean Sea Level) Date From-To Hrs Task Code NPT Total Depth Phase Description of Operations (hr) (usft) 17:00 - 18:00 1.00 WHSUR P PRE PULL BLANKING SUB AND BPV -PRESSURE DUTCH RISER,LUBRICATOR AND QUICK-TEST SUB;GOOD TEST -STAND BACK LUBRICATOR I-PULL BLANKING PLUG THROUGH DUTCH RISER -MAKE UP LUBRICATOR AND TEST QUICK TEST SUB PULL BPV AND LAY DOWN 18:00 - 19:00 1.00 BOPSUR P DECOMP RIG DOWN LUBRICATOR AND DUTCH RISER 19:00 - 21:00 2.00 WHSUR P 3,450.00 DECOMP CIRCULATE BARAKLEAN SOAP PILL SURFACE TO SURFACE DOWN THE TUBING,TAKING RETURNS TO THE FLOW BACK TANK -7 BPM,800 PSI AT THE PUMP WITH 140 PSI ON THE CHOKE OUT TO THE FLOW BACK TANK -PUMPED 250 BBLS TOTAL SIMOPS: -CHANGE OUT WASH PIPE ON TOP DRIVE 21:00 - 23:00 2.00 WHSUR -P 3,450.0Q DECOMP RIG UP TO PULL 4-1/2"TUBING WITH I-WIRE AND HEAT TRACE 1=MAKE UP LANDING JOINT WITH XO AND -ENGAGE TUBING HANGER -RIG UP DOYON CASING TONGS -RIG UP SLB SPOOLING UNITS(x2)WITH SHEAVES FOR I-WIRE AND HEAT TRACE 23:00 - 00:00 1.00 WHSUR- P 3,450.00 DECOMP ATTEMPT TO PULL 4-1/2"TUBING HANGER TO RIG FLOOR -BACK OUT LOCK DOWN SCREWS -HANGER PULLED OFF SEAT WITH 75 KLBS (ESTIMATED BUOYED WT OF STRING+ BLOCKS AND TOP DRIVE=74 KLBS) -PULLED UP TO 160 KLBS IN 10 KLB INCREMENTS,36"OF STRETCH WITH 85 KLBS OVERPULL -FLEX STRING UP TO 150 KLBS AND CALL ODE AND WSUP. 11/30/2017 00:00 - 02:30 2.50 WHSUR P 3,450.00 DECOMP CONTINUE TO WORK 4-1/2"TUBING HANGER TO RIG FLOOR -FLEX STRING UP TO 150 KLBS-100 TIMES -STRING PULLED FREE WITH 140 KLBS -AFTER 20'WEIGHT FELL OFF TO 85 KLBS -PULL HANGER TO FLOOR RIG FLOOR 02:30 - 03:30 1.00 WHSUR P 3,450.00 DECOMP CIRCULATE WELL CLEAN WITH A BARAKLEAN SOAP PILL -12 BPM,580 PSI -SIGNIFICANT VOLUME OF HEAVY SAND BACK -FLOW CHECK WELL FOR 10 MIN;STATIC 03:30 - 04:30 1.00 WHSUR P 3,450.00 DECOMP RIG UP TO LAY DOWN 4-1/2"TUBING WITH I-WIRE AND HEAT TRACE -TERMINATE I-WIRE -RIG UP SPOOLING UNITS -LAY DOWN TUBING HANGER AND LANDING JOINT Printed 12/11/2017 3:52:48PM *AII depths reported in Drillers Depths* • North America-ALASKA-BP • Page 4 a6" Operation Summary Report Common Well Name:L-205 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: X3-018F8-C:(2,979,366.00) Project:Prudhoe Bay Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:00AM Rig Release: Rig Contractor:PARKER DRILLING CO. BPUOI:USA00001709 Active datum:L-205A ACTUAL @94.43usft(above Mean Sea Level) Date From-To Hrs Task Code NPT Total Depth Phase Description of Operations (hr) I (usft) 04:30 - 15:00 10.50 CASING P 3,450.00 DECOMP PULL AND LAY DOWN 4-1/2"TUBING WITH I-WIRE AND HEAT TRACE FROM CUT AT 3450' 1 MD TO SURFACE -PU 85 KLBS,SO 75 KLBS AT 3400'MD I I-MONITOR HOLE FILL WITH TRIP TANK; I GOOD FILL 1-RECOVER:(77 EA)FULL JTS,(3 EA)GLM -!,-ASSEMBLIES,(2 EA)X-NIPPLE ASSEMBLIES, (1 EA)GAUGE CARRIER ASSEMBLY,(1 EA) GAUGE ASSEMBLY,(1 EA)SLIDING SLEEVE ASSEMBLY,(3 EA)SPACE-OUT PUPS,(1 EA) ITUBING HANGER AND PUP ASSEMBLY,(1 EA) CUT JOINT-38.35'OAL WITH 4.75"OD FLARE, I (493 EA)5'CLAMPS,(91 EA)2'CLAMPS,(7 EA) SS BANDS,-3400'HEAT TRACE,-3410'1-WIRE ' -CLEAN E-LINE JET CUT,SEE ATTACHED PHOTOS 15:00 - 16:30 1.50 CASING , P 3,450.00 DECOMP 'RIG DOWN SLB SPOOLERS AND DOYON ' CASING TONGS. CLEAN AND CLEAR RIG FLOOR. 16:30 - 17:00 0.50 ' CASING P 3,450.00 DECOMP INSTALL 7-1/8"ID WEAR RING 17:00 - 17:30 0.50 FISH ' P 3,450.00 DECOMP PICKUP AND MAKE UP SLB HYDRAULIC _CASING CUTTER ASSEMBLY,DRESSED TO CUT 7-5/8"CASING,PER SLB FISHING REPRESENTATIVE 17:30 20:30 3.00 FISH P 3,450.00 DECOMP RUN IN THE HOLE WITH SLB CASING CUTTER ASSEMBLY TO 3004'MD,PICKING UP 4"DRILL PIPE SINGLES FROM THE PIPE SHED -MW IN/OUT=9.2 PPG PU 75 KLBS,SO 71 KLBS AT 3004'MD 20:30 - 22:00 1.50 FISH `P 3,450.00 DECOMP i ESTABLISH PARAMETERS AND CUT 7-5/8" I CASING AT 3004'MD 45 RPM,3-7 KFT-LBS TORQUE,160 GPM,850 PSI 1 I-GOOD INDICATION OF CUT WITH OA 'PRESSURE INCREASE TO 310 PSI -ROTATE FOR AN ADDITIONAL 15 MIN AFTER OBSERVED OA PRESSURE INCREASE 22:00 - 23:30 1.50 FISH P 3,450.00 DECOMP CIRCULATE OUT OA FREEZE PROTECT TO . FLOW BACK TANK -CLOSE ANNULAR PREVENTER AND LINE UP TO FLOW BACK TANK ' -ESTABLISH CIRCULATION AND SPOT A BARAKLEAN SOAP PILL IN THE OA -LET SOAP PILL SOAK FOR 15 MIN -CIRCULATE OUT SOAP PILL AND OA FLUIDS TO THE FLOW BACK TANK -4.5 BPM,1450 PSI WITH 65 PSI ON THE I CHOKE OUT TO THE FLOW BACK TANK -SPOTA SECOND BARAKLEAN SOAP PILL ON THE BACK SIDE OF THE 7-5/8"CASING -MONITOR THE WELL FOR 10 MIN;STATIC. 23:30 - 00:00 0.50 FISH P 3,450.00 DECOMP PULL OUT OF THE HOLE WITH THE SLB CASING CUTTER ASSEMBLY FROM 3004'MD 1 TO 2380'MD I-PU 75 KLBS,SO 71 KLBS AT 3000'MD -10K OVERPULL REQUIRED TO PULL CUTTERS CLEAR OF CUT Printed 12/11/2017 3:52:48PM "All depths reported in Drillers Depths* North America-ALASKA-BP Page 5 cc ' Operation Summary Report Common Well Name:L205 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: X3-018F8-C.(2,979,366 00) Project:Prudhoe Bay Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:00AM Rig Release: Rig Contractor:PARKER DRILLING CO. BPUOI:USA00001709 Active datum:L-205A ACTUAL©94.43usft(above Mean Sea Level) Date From-To Hrs Task I Code ' NPT Total Depth I Phase Description of Operations (hr) (usft) 12/1/2017 00:00 - 01:00 1.00 FISH P 3,450.00 DECOMP CONTINUE TO PULL OUT OF THE HOLE AND LAY DOWN SLB CASING CUTTER ASSEMBLY FROM 2380'MD -MONITOR HOLE FILL WITH TRIP TANK; GOOD FILL -GOOD INDICATIONS OF CUT ON THE CUTTER KNIVES 01:00 - 01:30 0:50 FISH P 3,450.00 DECOMP PULL AND LAY DOWN THE 7-1/8"ID WEAR RING 01:30 - 02:00 0.50 FISH P 3,450.00 DECOMP RIG UP TO PULL 7-5/8"CASING -RIG UP DOYON CASING TONGS -MAKE UP SPEAR ASSEMBLY PER SLB REPRESENTATIVE -RUN IN AND ENGAGE THE 7-5/8"CASING WITH THE CASING SPEAR -BACK OUT LOCK DOWN SCREWS PER FMC REPRESENTATIVE 02:00 - 02:30 0.50 FISH P 3,450.00 DECOMP PULL 7-5/8"CASING HANGER TO RIG FLOOR AND LAY DOWN -PULLED OFF SEAT AT 115 KLBS,AS PLANNED -LAY DOWN SPEAR ASSEMBLY -LAY DOWN 7-5/8"CASING HANGER 02:30 - 03:00 0.50 FISH P 3,450.00 DECOMP _CIRCULATE TO CLEAN UP 7-5/8"ANNULUS -10 BPM,150 PSI -MONITOR WELL FOR 10 MIN,STATIC 03 00 - 06:00 3.00 FISH P 3,450.00 DECOMP PULL AND LAY DOWN 7-5/8"CASING FROM CUT AT 3004'MD -PU 115 KLBS,SO 105 KLBS AT 3000'MD -MONITOR HOLE FILL WITH TRIP TANK; GOOD FILL -NO ISSUES PULLING OUT OF HOLE WITH CASING -RECOVER:(73 EA)FULL JTS,36.18'CUT JOINT -CASING CUT SIGNIFICANTLY DEFORMED, WITH SPLIT IN ONE SIDE;INDICATION THAT 7-5/8"CASING IS IN COMPRESSION AT LOCATION OF CUT -NEGATIVE NORM FOR ALL 7-5/8"CASING AND 4-1/2"TUBING 06:00 - 07:00 1.00 FISH P 3,450.00 DECOMP CLEAN AND CLEAR RIG FLOOR AFTER LAYING DOWN 7-5/8"CASING,RIG DOWN DOYON CASING TONGS 07:00 - 07:30 0.50 CLEAN P 3,450.00 WEXIT RUN 9-15/16"ID WEAR RING 07:30 - 11:30 4.00 CLEAN P 3,450.00 WEXIT MAKE UP 10-3/4"SCHLUMBERGER CLEANOUT ASSEMBLY FROM SURFACE TO 1045'MD -8-1/2"USED INSERT BIT,(2)9-3/4" 'WATERMELON MILLS,(6)6"SPIRAL DRILL COLLARS,(27)5"WIRED HWDP -FIRST RUN IN HOLE WITH NEW WIRED DRILL PIPE,REVIEW HANDLING PRACTICES WITH NOV REP AND RIG CREW Printed 12/11/2017 3 52 48PM *AIL depths reported in Drillers Depths* North America-ALASKA-BP • Page 6 Pd Operation Summary Report , Common Well Name:L-205 I Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: X3-018F8-C:(2,979,386.00) Project:Prudhoe Bay ' Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:OOAM Rig Release: Rig Contractor:PARKER DRILLING CO. BPUOI:USA00001709 Active datum:L-205A ACTUAL©94.43usft(above Mean Sea Level) Date From-To Hrs Task , Code NPT Total Depth Phase Description of Operations (hr) (usft) 11:30 - 12:30 1.00 CLEAN P 3,450.00 WEXIT TRIP IN HOLE WITH 10-3/4"SCHLUMBERGER CLEANOUT ASSEMBLY FROM 1045'MD TO 2980'MD(UPPER WATERMELON MILL 7' BELOW PLANNED CIBP DEPTH)ON ELEVATORS -4"HT-38(NON-WIRED)DRILL PIPE -NO ISSUES RUNNING IN HOLE(NO SIGNS -OF SUBSIDENCE) -MONITOR DISPLACEMENT WITH TRIP TANK; GOOD DISPLACEMENT -TRIPPING SPEED 90 FPM 12:30 - 14:00 1.50 CLEAN P 3,450.00 WEXIT CIRCULATE HOLE CLEAN WITH 35 BBL HI-VIS SWEEP SURFACE TO SURFACE -730 GPM,1900 PSI -RECIPROCATE 40'STROKE WITH MILLS ACROSS CIBP SET DEPTH WHILE CIRCULATING -NO SIGNIFICANT SOLIDS AT SHAKERS WHEN SWEEP,CAME BACK -FLOW CHECK FOR 10 MIN PRIOR TO 'PULLING OUT OF HOLE,STATIC 14:00 - 15:00 1.00 CLEAN P 3,450.00 WEXIT TRIP OUT OF HOLE WITH 10-3/4" SCHLUMBERGER CLEANOUT ASSEMBLY FROM 2980'MD TO 1045'MD ON ELEVATORS -NO ISSUES TRIPPING OUT OF HOLE -MONITOR HOLE FILL WITH TRIP TANK; GOOD FILL -TRIPPING SPEED 200 FPM 15:00 - 16:30 1.50 CLEAN P , 3,450.00 WEXIT RACK BACK AND LAY DOWN 10-3/4" SCHLUMBERGER CLEANOUT ASSEMBLY FROM 1045'MD TO SURFACE -RACK BACK 5"WIRED HWDP AND 6"DUMB IRON DRILL COLLARS FOR UPCOMING WHIPSTOCK RUN -FLOW CHECK FOR 10 MIN PRIOR TO PULLING NON-SHEARABLES THROUGH THE STACK 16:30 - 17:00 0.50 DHB P 3,450.00 WEXIT MAKE UP 10-3/4"BAKER CIBP AND RUNNING TOOLS -FLOW CHECK FOR 10 MIN PRIOR TO RUNNING IN HOLE,STATIC 17:00 - 18:30 1.50 DHB P 3,450.00 WEXIT TRIP IN HOLE WITH 10-3/4"BAKER CIBP FROM SURFACE TO 2955'MD ON 4"HT-38 DRILL PIPE -TRIPPING SPEED 100 FPM 18:30 - 19:00 0.50 DHB P 2,953.00 WEXIT SET BAKER CIBP AT 2953'MD(TOP OF PLUG), RELEASE FROM RUNNING TOOL AND RACK BACK ONE STAND -TOP OF PLUG ESTIMATED TO BE 6'ABOVE 10-3/4"COLLAR AT 2959'MD Printed 12/11/2017 3:52:48PM *AII depths reported in Drillers Depths* North America-ALASKA-BP Page 7 Or Operation Summary Report Common Well Name:L-205 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: IIX3-018F8-C:(2,979,366.00) Project:Prudhoe Bay Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:OOAM Rig Release: Rig Contractor:PARKER DRILLING CO. BPUOI:USA00001709 Active datum:L-205A ACTUAL @94.43usft(above Mean Sea Level) Date From-To Hrs Task Code NPT Total Depth Phase. Description of Operations (hr) (usft) 19:00 - 21:00 2.00 DHB P 2,953.00 WEXIT PRESSURE TEST 10-3/4"CASING AND BAKER CIBP TO 2000 PSI FOR 30 MIN I-TEST AGAINST ANNULAR PREVENTER -2 BBLS TO PRESSURE UP,2 BBLS BLED BACK -75 PSI LOST IN FIRST 15 MIN,25 PSI LOST IN SECOND 15 MIN;TEST PASSES ACCORDING TO ACCEPTANCE CRITERIA 3B IN BP PRACTICE 100218(10-45) -TEST APPROVED BY WSUP -USE PRESSURE CROSSCHECK PRIOR TO INITIATING TEST -SEE ATTACHED PRESSURE TESTING CHART AND CALCULATOR 21:00 - 21:30 0.50 DHB P 2,953.00 WEXIT 'DISPLACE WELL TO 9.6 PPG LSND MILLING FLUID -750 GPM,950 PSI • 21:30 - 22:00 0.50 DHB P 2,953.00 • WEXIT TRIP OUT OF HOLE WITH CIBP RUNNING • TOOL FROM 2860'MD TO SURFACE ON ELEVATORS; AY DOWN RUNNING TOOL -TRIPPING SPEED 200 FPM 22:00 - 22:30 0.50 DHB P 2,953.00 WEXIT CLEAN AND CLEAR RIG FLOOR 22:30 - 23:30 1.00 BOPSUR P , 2,953.00 'WEXIT I.CHANGE UPPER RAMS FROM 7-5/8"FIXED TO • 12-7/8"X 5"VARIABLES -SIMOPS:CHANGE OUT DUMB IRON HT-38 SAVER SUB TO WIRED DS-50 SAVER SUB 23:30 - 00:00 0.50 BOPSUR P • 2,953.00 I WEXIT SERVICE RIG FLOOR PIPE HANDLING EQUIPMENT 12/2/2017 00:00 - 02:00 2.00 BOPSUR. P- 2,95100. WEXIT TEST UPPER 2-7/8"X 5"VARIABLE RAMS TO 250 PSI LOW/3500 PSI HIGH FOR 5 MIN EACH WITH 5"TEST JOINT -MAKE UP 5"TEST JOINT • 1 -PULL 9-15/16"WEAR RING -INSTALL TEST PLUG -PRESSURE TEST RAMS -PULL TEST PLUG -INSTALL 9-15/16"WEAR RING -RIG DOWN TESTING EQUIPMENT 02:00 - 03:30 1.50 STWHIP P 2,953.00 WEXIT MAKE UP SCHLUMBERGER 10-3/4" WHIPSTOCK ASSEMBLY FROM SURFACE TO 1138'MD -10-3/4"WHIPSTOCK,9-3/4"TRIMILL,(6)6" DRILL COLLARS AND(27)5"WIRED DS-50 HWDP OUT OF DERRICK • -FLOW CHECK FOR 10 MIN PRIOR TO RUNNING IN HOLE,STATIC 03:30 - 08:30 5.00 STWHIP P • ' 2,953.00 ' WEXIT TRIP IN HOLE WITH SCHLUMBERGER 10-3/4" WHIPSTOCK ASSEMBLY FROM 1138'MD 2900' MD ON ELEVATORS -RUN ON 5"WIRED DS-50 DRILL PIPE SINGLES FROM THE PIPE SHED -TRIPPING SPEED 60 FPM -MONITOR DISPLACEMENT WITH TRIP TANK; GOOD DISPLACEMENT Printed 12/11/2017 3:52:48PM *AII depths reported in Drillers Depths* North America-ALASKA-BP • Page 8 Ve Operation Summary Report Common Well Name:L-205 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:11/27/2017 End Date: 4X3-018F8-C:(2,979,366.00) Project:Prudhoe Bay Site:PB L Pad Rig Name/No.:PARKER 272 Spud Date/Time:4/27/2008 12:00:00AM Rig Release: Rig Contractor:PARKER DRILLING CO. BPUOI:USA00001709 Active datum L-205A ACTUAL @94.43usft(above Mean Sea Level) Date From-To Hrs Task Code NPT Total Depth Phase Description of Operations (hr) (usft) 08:30 - 09:00 0.50 STWHIP P 2,925.00 WEXIT ORIENT WHIPSTOCK TO 40°LEFT OF HIGHSIDE AND SET WITH TOP OF SLIDE AT 2925'MD -ORIENT WITH MWD -TAG EZSV AT 2953'MD AS EXPECTED -PICK UP 2'AND SET WHIPSTOCK PER SCHLUMBERGER FISHING REP SLACK OFF 40 KLBS TO CONFIRM SET AND SHEAR MILLS FROM WHIPSTOCK 09:00 - 10:00 1.00 STWHIP N 2,925.00 ' WEXIT ATTEMPT TO INITIATE MILLING WITH NOVOS I SYSTEM AND TROUBLESHOOT I-NOVOS OUTPUT INCORRECT PUMP RATE, ROP AND WOB PARAMETERS TROUBLESHOOT AND RE-INITIALIZE SYSTEM TO RESOLVE ISSUE 10:00 - 16:00 6.00 STWHIP P 2,941.00 WEXIT MILL 9-3/4"WINDOW FROM TOP OF WHIPSTOCK AT 2925'MD TO BOTTOM OF 1,--209A • WHIPSTOCK AT 2941'MD PER SCHLUMBERGER FISHING REP -520 GPM,1240-1275 PSI,60-90 RPM,6-8 KFT-LBS TQ -INITIATE MILLING WITH 1 KLBS WOB,1 FPH ROP,60 RPM -INCREASE TO 3-5 KLBS WOB,3 FPH AND 90 RPM AFTER FIRST 1.5'OF MILLING -MW 9.6 PPG IN/OUT -NOVOS AND SOFTSPEED ACTIVE -SIMOPS:BUILD STANDS OF WIRED 5"DS-50 DRILL PIPE OFFLINE SLOW PUMP RATES @ 2925'MD WITH 9.6 PPG LSND: MP#1:30 SPM=185 PSI,40 SPM=230 PSI MP#2:30 SPM=180 PSI,40 SPM=235 PSI 16:00 - 20.30 4.50 STWHIP P 2,961.00 WEXIT DRILL 20'OF NEW FORMATION FROM 2941' MD TO LEAK-OFF TEST DEPTH OF 2961'MD -520 GPM,1250-1280 PSI,90 RPM,7-8 KFT-LBS TQ,2 KLBS WOB -NOVOS AND SOFTSPEED ACTIVE -DRIFT WINDOW WITH/WITHOUT PUMPS AND ROTATION WITH NO ISSUES -SIMOPS:BUILD STANDS OF WIRED 5"DS-50 DRILL PIPE OFFLINE • 20:30 - 21:30 1.00 STWHIP P 2,961.00 WEXIT CIRCULATE HOLE CLEAN WITH 35 BBL HI-VIS SWEEP SURFACE TO SURFACE -650 GPM,1750 PSI,80 RPM,7 KFT-LBS TQ -RECIPROCATE PIPE 60'WHILE - CIRCULATING -NO INCREASE IN CUTTINGS OBSERVED AT SHAKERS FROM SWEEP -FLOWCHECK WELL FOR 10 MIN(STATIC) Printed 12/11/2017 3:52:48PM *AII depths reported in Drillers Depths* WH_LI-EAD= FMC -20 5 SAFETY NOTES:WELL ANGLE>70°@ 5257''"""M OTFUBORE ACTUATOR= awMEso • (L1, L2, L3, L4 & L5) ABOVEO•LOTS IS ALL 13CR(TBG,PUPS,LEMS) KB.EEA/= 761' REF ELEV 76.1. 20"COND, HI 153' J II BF.ELEV= 48.83' 129#,X-56, 2925' -)10-3/4"WHIPSTOCK(12/02/17) M D=18.770"Angle= 103 ' 2953' H 10-3/4"CEP(12/01/17) n9 5878 5878' Datum MD= N/A 3004° -17-5/8"CSG STUB Datum TVD= 4400'SS 10-3/4"CSG, H 3026° �, , 45.5#,L-80 BTC,D=9.95" 4-1/2"JET CUT TBG(10/31/17) H 3540' MI ►Z 3558' H 7-5/8"X 4-1/2"HES TNT PKR,ID=3.856" Minimum ID: 3.688" @ 4837' 3591' H4-1/2"FES X NP,D=3.813" BKR HOOK HGR ASSYw/SEALING LEM 3620' -14-1/2"HES X NIP,0=3.813" 4-1/2"TBG,12.6#,13CR VAM TOP, - 3666' -----1 3659' -I7-5/8"X 4-1/2"SETTING SLV,ID=3.950" .0152 bpf,ID=3.958" *M4 - 'r 3666° H4-1/2"MULESHOE,ID=3.958" DUMP BAIL CMT(10/23/17) H 4558° w+ ''.' 4•4ani 4# 3673' H 7-5/8"X 4-1/2"PREM PKR,D=3.870" 4-1/2"WFD GBP(10!22/17) H 4585° ��/� ' 4605' H5-3/4"PORTED SEAL STEM ASSY,D=4.750" 4-1/2"LNR, 12.6#,13CR-85 VAM TOP, -I 4593' 4800• -I4_1/2"EP(10/19/11) .0152 bpf,ID=3.958" cm MI 111 - -123-- L5(Nb)LEM WINDOW47° 7-5/8"X 5-1/2"BKR ZXP LTP -I 4604' 4-1/2" RA TAG 6522' &T�K,D=4.970" L5 Mb) @ asao'-as53' ® ® - - - �- - ta9 OPENING WIDTH=3 33" 5-1/2"X 4-1/2"XO,D=3.940" H 4624' 4 4781' H 7-5/8"X 5-1/2"BKR ZXP LTP/TIEBK,D=4.970" BAKER HOOK HANGER ASSY ---1 4636' w/L3 SEAL@JG LEM,D=3.688" I 48�• 19'SEAL BORE EXTENSION,ID=4.75" 7-5/8"RA T AG H 4726° ` 4819' H5-1/2"X 4-1/2"XO.D=3.958" 13CR LBM#3 LOWER SEAL ASSY,ID=3.880" -I 4813' \ as as _ - ISL.12:1_ - L4(OA)LEM WINDOW 56' BAKER HOOK HANGERASSY -1 483T bib.. OPENING (OA) 4-112"RA TAG @ 6898' 4841 -4853' w/L2 SEALING LEM,D=3.688" OPENING WIDTH=3.33" 7-5/8"RA TAG -I 4943° �1 J 4945° -I7-5/8"X 5-1/2"BKR ZXP LTPITDBK,D=4.970" 13CR LEM#2 LOWER SEAL ASSY,ID=3.90" -I 4974' O. l 4964' -I 19-1/2'SEAL BORE EXTENSION,ID=4.75" BAKER HOOK HANGER ASSY --1 4999' w/L1 SEALU"JG LEM,D=3-688" ` 4983' -{5-1/2"X 4-1/2"XO.D=3.910" H L3(OBa)LEM WINDOW 62` 7-5/8"RA TAG 5084' L.3( ) 4-1/2"RA TAG @ 735T 7 5002'-5015' OPENING WIDTH=3.33" 13CR LEAH#1 LOWER SEAL ASSY,ID=3.88" -1 5148' N. P/T 5101' -I7-5/8"X 5-1/2"BKR ZXP LTEBK,D=4.950" 7 5/8'CSG,29.7#,L-80 BTC-M --I 5582' L .0459 bpf. ID=6.875" 5132' -119'SEAL BORE EXTENSION,ID=4.75" 4-1/2"SOLID LNR,12.6#,13CR-80 H 5594' X 5151' H5-1/2"X 4-1/2"XO.ID=3.880" VAM TOP,.0152 bpf,D=3.958" I FORATION SUMMARY I PER REF LOG:SWS LAD VARIOUS DA I ES I I L-205(0613) ANGLE AT TOP PERF: N/A 14 , ��' 5814' -6"WFD FLOW THRU A LUMMUM BLLET LNR Note:Refer to Production DB for historical pert data 1 SIZE SPF IN1132VAL Opn/Sqz DATE (BEI®ND SLOTTED LINER) z. SEE PAGE 2 FOR PERFORATION INFORMATION :4 LI (OBc) 1 ._. 4-1/2"SOLID LNR, 12.6#,L-80, -I 8955' [2 5751' _J6"WFD FLOW THRU ALUMINUM BLLET LNR .0152 bpf,D=3.958" OBd) (BEFOND SLOTTED LINER) DATE REV BY COMIMU'lTS DATE REV BY COMMENTS ORION INT 07/08/08 N9ES ORIGINAL COMPLETION 11/01/17 MS/JIVE) JET CUT TBG(10/31/17) WELL: L-205,L1,L2,L3,L4&L5 11/17/11 D16 RWO Ft7ZMIT No:2080530(540)(580)(550)(560)(570) 07/26/17 JNUJMD ADDED REF&BF ELEV AR No:50-029-23388-00(60)(64)(61)(62)(63) 08/03/17 JGUJMD RALE)XX PLUG(07/31/17) SEC 34,T12N,R11 E,2361'FSL&1493'FAL 10/17/17 JMGIJMD GLV CIO(10/16/17) 10/24/17 BTN/JMD SET CSP&DUMP BAR_CMI BP Exploration(Alaska) L-205 • (L1, L2, L3, L4 & L5) • r I IL I I g I I II ►_ �,•4 ;1•_►! Nb PBTD 8616' "� \ 621 62I . . 621 _ _ .m. 4-1 K"SWELL PKR @ 04', 5449',6540'&7035',ID=3.90' �� i4 - - - -�- - -=.- PERFORATION SUMMARY 4636' 8630',6.75"L5 (Nb) REFLOG:SWS LWD VARIOUS DATES 4-1'2"LNR L-80 IBT-M, .0152 bpf,ID=3.958" ANGLE AT TOP PERF:N/A r H Note:Refer to Production DB for historical perf data OA PBTD 8750' SIZE SPF ZONE MfTBRVAL Opn/Sqz DATE \ / 4-1/2" SLTD Nb 5480-6522 *'C 07/05/08 _Cal - - 4-1/2" SLTD Nb 7061-8574 '"C 07/05/08 `4-1/2"SWELL PKR @ 4925',5279',6915'&7419",U=3.90" 4-1/2" SLID OA 5320-6898 0 06/29/08 - 111117-1713T- - - 4-1/2" SLID OA 7445-8709 0 06/29/08 •� 4853'-8763'.6 75"L4 (OA) 4-112" SLID OBa 5478 7357 0 06/23/08 0 4-1 2" LNR. L-80 IBT-M, .0152 bpf. ID=3 958" 4-1/2" SLID OBa 7918-8797 0 06/23/08 4-1/2" SLID OBb 6382-8910 0 06/06/08 4-1/2" SLID OBc 5774-6098 0 06/10/08 OBa PBTD -1 8839' 4-1/2" SLID OBc 6413-8948 0 06/10/08 '�...„. E 4-1/2" SLID OBd 5594-5827 0 06/16/08 4-1/2"SWELL PKR @ 5045',5419',7374'&7893",D=3.90" 4-1/2" SLID OBd 5913-7501 0 06/16/08 4-1/2" SLID OBd 8020-8886 0 07/07/08 —IN 4999'-8850',6.75"L3 (OBa) 4-1,2"LNR. L-80 IBT-M. .0152 bpf,ID=3 958" 'NB PEWS ISOLA IED A , OBb PBTD H 8951' X X 4-1/2"SWELL PKR @ 5842',ID=3.90" �.� 5813'-8953'.6.75"L -205(OBb R •: �r;.j' 4-1'2" LNR, L-80 IBT-M, 0152 bpf,ID=3.958" 4-1/2"RA T AG —{ 5847' ...,.......s........... IA OBc PBTD H 8988' 4-1/2"SWELL PKR =3.90" 5865' / 4-1/2"SWELL PKR @ 6116',D=3.90" 4-1/2"RA TAG 7508' �rj ��4 4-1/2"SWELL PKR,HD=3.90" — 7526' 5751'-1-990' 6 75"L1 (OBc) 4-1/2"SWELL PKR ID=3.90" — 7996' . �:. 4-112"LNR, L-80 IBT-M. .0152 bpf.ID=3.958" _�.� �/I , �rj 5101'-8965'.6.75"L2 (OBd) OBd PBTD —I 8955' _` 4-1''2"LNR L-80 IBT-M. .0152 bpf,D=3.958" DATE REV BY COMv1BVTS DATE REV BY CONIVE NTS ORION UNIT 07/08/08 N9ES ORIGINAL COMPLETION 11/01/17 MS/J14) JET CUT TBG(10/31/17) WELL: L-205,Li,L2,L3,L4&L5 11/17/11 D16 RWO PBT No:2080530(540)(580)(550)(560)(570) 07/26/17 JN JJMD ADDED REF&BF ELEV API No:50-029-23388-00(60)(64)(61)(62)(63) 08/03/17 JGUJMD PULLED XX PLUG(07/31/17) SEC 34,T12N,R11 E,2361'FSL&1493'FWL 10/17/17 JMG/JMD GLV C/O(10/16/17) 10/24/17 BTN/JMD SET CEP&DUMP BAL DAT BP Exploration(Alaska) OF 7'4 . • 5 I%:'.s THE STATE Alaska Oil and Gas of 1\ LS Conservation Commission : �: 333 West Seventh Avenue irtrGOVERNOR BILL WALKER Anchorage, Alaska 99501-3572 • OF wh P Main: 907.279.1433 ill ALAS Fax: 907.276.7542 www.aogcc.alaska.gov Kenneth Allen Engineering Team Lead %IOU SEP 1 1 BP Exploration (Alaska), Inc. PO Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Orion Schrader Bluff Oil Pool, PBU L-205 Permit to Drill Number: 208-053 Sundry Number: 317-376 Dear Mr. Allen.: Enclosed is the approved application for sundry approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the AOGCC grants for good cause shown,a person affected by it may file with the AOGCC an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Self Cathy Is. Foerster Commissioner DATED this eday of September, 2017. RBDMS SEP - 8 2017 STATE OF ALASKA •ALASKA OIL AND GAS CONSERVATION COMM N APPLICATION FOR SUNDRY APPROV�S 20 AAC 25.280 1. Type of Request: Abandon 0 Plug Perforations ❑ Fracture Stimulate 0 Repair Well 0 Operations shutdown❑ Suspend 0 Perforate ❑ Other Stimulate 0 Pull Tubing 0 Change Approved Program 0 Plug for Redrill 0 . Perforate New Pool 0 Re-enter Susp Well 0 Alter Casing 0 Other 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Current Well Class: 5. Permit to Drill Number: 208-053 - • 3, Address: P.O.Box 196612 Anchorage,AK Exploratory 0 Development 0 99519-6612 Stratigraphic ❑ Service ❑ 6. API Number: 50-029-23388-00-00 • 7. If perforating: 8. Well Name and Number: What Regulation or Conservation Order governs well spacing in this pool? , Will planned perforations require a spacing exception? Yes ❑ No BI PBU L-205 • 9. Property Designation(Lease Number): 10. Field/Pools: AUG 8 �,7 ADL 028239&028241 " PRUDHOE BAY,ORION SCHRADER BLUFF OIL • 0.1-45 1 ‘/,7 11. PRESENT WELL CONDITION SUMMARYAci�+ 1"Ss Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD: Effective Depth TVD: MPSP(psi): Plugs(MD): Junk 1 „��,, 8953 • 4360 • 3486 3132 1602 3486 None Casing Length Size MD TVD Burst Collapse Structural Conductor 124 20" 29-153 29-153 3060 1500 Surface 2997 10-3/4" 29-3026 29-2739 5210 2480 Intermediate 5555 7-5/8" 27-5582 27-4466 6890 4790 Production Liner 5291 4-1/2" 3662-8953 3284-4360 8430 7500 Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): 6382-8910 4348-4361 4-1/2"12.6# 13Cr80 24-3669 Packers and SSSV Type: 4-1/2"HES TNT Perm Packer Packers and SSSV MD(ft)and TVD(ft): 3561/3197 No SSSV Installed No SSSV Installed 12.Attachments: Proposal Summary 0 Wellbore Schematic I3 13.Well Class after proposed work: Detailed Operations Program 0 BOP Sketch ® Exploratory 0 Stratigraphic 0 Development 13 • Service 0 14.Estimated Date for Commencing Operations: September 1,2017 15. Well Status after proposed work: Oil 0 WINJ ❑ WDSPL 0 Suspended ® • 16.Verbal Approval: Date: GAS 0 WAG ❑ GSTOR 0 SPLUG ❑ Commission Representative: GINJ 0 Op Shutdown 0 Abandoned 0 17.I hereby certify that the foregoing is true and the procedure approved herein will not Contact Name: - Raese,J.Kyle be deviated from without prior written approval. Contact Email: john.raese@bp.com Authorized Name: Allen,Kenneth W Contact Phone: +1 9075644629 Authorized Title: Engineering Team Lead Authorized Signature: c-- Date: /r�� COMMISSION USE ONLY Conditions of approval:Notify Commission so that a representative may witness Sundry Number: �/ 31-7-3-74, Plug Integrity 0 BOP Test Mr Mechanical Integrity Test 0 Location Clearance 0 Other: BI2P I-tb f I-v 3 SUV p ,-t Post Initial Injection MIT Req'd? Yes 0 No Spacing Exception Required? Yes 0 NoI Subsequent Form Required: /U— .4 - / / APPROVED BYTHE C—� < 7 Approved by: / COMMISSIONER COMMISSION Date. �. VTL q/111�' ORIGINAL RBDMS (.," SEP - azo°' 4 Su mit Form and Form 10-403 Revised 04/2017 Approved application is valid for 12 months from the date of approval. Attachment m Du licete • • RECEIVED 0 �+''� An 0 8 201; C L-205 Sundry Application Well Type: Producer Current Status: Shut-in Request: Abandon for rotary rig sidetrack Planned Pre-Rig Work Start Date: September 1, 2017 Planned Rig Start Date: November 1, 2017 MIT-OA Passed to 1080 psi (8/4/2016) MIT-IA Passed to 3500 psi (11/17/2011) PPPOT-T Passed to 5000 psi (8/2/2016) PPPOT-IC Passed to 3500 psi (8/2/2016) MASP: 1,602 psi (8.96 ppg EMW in Schrader Bluff-OBc at 4,379'TVDss with 0.1 psi/ft gas gradient) Well History: • The L-205 well was drilled and completed in 2008 as a multi-lateral well. L-205 has major damage at the L5 junction and has produced sand and rocks, rendering it unfit for production. There is currently an obstruction at the L5 junction restricting access below.All remaining options to re-access the L- 205 laterals have been exhausted. Due to the history of solids production and the inability to clean the • wellbore, it has been released for sidetrack. v/ y/ (t�i6" / /7 Scope of Work: Prior to rig arrival, a bridge plug will be set in the 4-1/2"scab liner and 25' of dump bail cement will be placed on top of the plug.Top of cement will be tagged and wellbore integrity will be verified.The tubing will then be cut above the production packer. The rig will pull the 4-1/2" tubing and cut and pull the 7- 5/8"casing from—3000' MD.A bridge plug will be set above the 7-5/8"casing stub.A whipstock will be set on the bridge plug and a window will be milled in the 10-3/4" surface casing. BP is requesting a variance from 20 AAC 25.112 Well Plugging Requirements c.1.E. The objective ------ of the L-205A sidetrack is to drill a slant well near the existing L-205 laterals so that their remaining reserves may be accessed via hydraulic fracturing and produced through the new sidetrack. For this reason, it is not desired to abandoned the existing laterals with cement. Instead of cementing individual laterals, it is proposed Tiafabridge plug will be set in the 4-172" scab liner(above all lateral junctions) with-2B' of dump bail cement on top to satisfy abandonment requirements. However, it is proposed to set the bridge plug at—4100' which is greater than the 50' maximum above perfs as stipulated in 20 AAC 25.112.c.1.E. The shallower set depth is proposed due to obstructions encountered nor the L5 junction and to help ensure successful setting of the plug. Note that the 4-1/2" scab liner has been fully cemented and that the top of annular 7-578 casing cement is estimated at—4000' MD. Thus, the dump bail cement at 4100' MD will complete a full lateral cement barrier above the Schrader reservoir. L-205 Sundry 1 8/7/2017 • • { Proposed Pre-Rig Operations: Step Service Operation 1 S Drift for CIBP& etfCut. 2 E Set CIBP at—4y0'0' MD. Dump Bail 25' Cement. F A/EL: Load &Circ Well. CMIT-TxIA to 2000 psi. E Jet Cut Tubing at—3540' MD 3 S D&T Cement. 4 F CMIT-TxIA to 2000 psi. MIT-OA to 1200 psi. 5 W PPPOT-IC and PPPOT-T. Function LDS. 6 V Install Dry Hole Tree. Install Annulus Valves. Set BPV. Proposed Drilling Rig Operations: 1. MIRU Parker 272. 2. Test BPV from below to 2000 psi. 3. Nipple down dry hole tree. Nipple up BOPE and test to 3500 psi. 4. Pull BPV. Circulate out freeze protect. 5. Pull the 4-1/2"tubing from the pre-rig jet cut at—3540' MD. 6. MU casing cutter and cut 7-5/8"casing at—3000' MD. 7. Pull 7-5/8"casing from cut. 8. RIH with 9-3/4"clean out assembly down to the top of the 7-5/8"casing stub. 9. RU E-line and set bridge plug at 2900' MD. Pressure test 10-3/4"casing to 2000 psi. 10. PU 10-3/4"whipstock and 9-3/4"window milling assembly. Orient and set the whipstock at 2900' MD. 11. Displace the well to LSND milling fluid. End of Sundry/Start of Permit to Drill 12. Mill window in the 10-3/4"casing plus 20'-50'of formation. 13. Perform LOT. POOH. 14. MU 9-1/2" production drilling BHA(GR/RES/PWD/NEU/DEN) and drill through Schrader Bluff sands to TD at—7531' MD. Perform short trip. POOH. 15. Run 7-5/8"casing to TD and cement. Test casing to 3500 psi. 16. Install the 7-5/8" pack-off and test to 3500 psi. 17. Freeze protect the 10-3/4"x 7-5/8"annulus. 18. MU perforating assembly with MWD and fire guns on depth across multiple Schrader Bluff target zones. POOH. 19. MU cleanout assembly and clean across perforations. POOH. 20. Run 4-1/2" completion with production packers and frac sleeves spaced out across the multiple Schrader Bluff target zones. 21. With completion spaced out, RU E-line and log RA tags to confirm the completion is on depth. Land the tubing hanger. 22. Reverse circulate brine and corrosion inhibitor. Drop ball and rod and set production packers. Test tubing to 4000 psi. Test IA to 3500 psi. 23. Shear GLV and circulate freeze protect to—2000'TVD. Set TWC and test to 3500 psi. L-205 Sundry 2 8/7/2017 • 24. Nipple down BOPE. Nipple up adapter and dry hole tree and test to 4500 psi. 25. RDMO Parker 272. Proposed Post-Rig Operations: Step Operation 1 Install Tree. Pull TWC. 2 Pull Ball &Rod. Pull RHC. Install DGLV. 3 MIT-T. MIT-IA. Injectivity Test. 4 Frac-Pack Well. Cleanup. 5 Install Generic LGLV. 6 Flowback Test. Drilling Engineer: Kyle Raese (907) 301-6405 Production Engineer: Alex Youngmun (907) 564-4864 Geologist: Sean Wagner (907) 564-4129 L-205 Sundry 3 8/7/2017 • • Loepp, Victoria T (DOA) From: Raese,J. Kyle <john.raese@bp.com> Sent: Thursday,August 31, 2017 5:57 PM To: Loepp,Victoria T(DOA) Cc: Allen, Kenneth W;Thompson,Jacob; Lastufka,Joseph N Subject: RE: PBU L-205(PTD 208-053, Sundry 317-376) Plug for Redrill Attachments: L-205 -Pre-Rig.pdf Victoria, Ok,thank you.Attached is the updated pre-rig schematic to reflect the new plug depth. Thanks, Kyle Raese Drilling Engineer BP Exploration(Alaska) o:907-564-4629 c:907-301-6405 From: Loepp,Victoria T(DOA) [mailto:victoria.loepp@alaska.gov] Sent:Thursday,August 31,2017 5:41 PM To: Raese,J. Kyle<john.raese@bp.com> Subject: Re: PBU L-205(PTD 208-053,Sundry 317-376) Plug for Redrill Yes Sent from my iPhone On Aug 31, 2017,at 5:16 PM, Raese,J. Kyle<Iohn.raese@bp.com>wrote: Victoria, We will attempt to set the bridge plug at 4586' MD(50'above the L5 junction at 4636' MD). If we are unable to drift that deep with the bridge plug due to obstructions,would it be acceptable to set it as deep as possible? Thanks, Kyle Raese Drilling Engineer BP Exploration (Alaska) 0:907-564-4629 c:907-301-6405 From: Loepp,Victoria T(DOA) [mailto:victoria.loepp(a alaska.gov] Sent:Thursday,August 31,2017 2:43 PM 1 • To: Raese,J. Kyle<john.raese@bp.com> Subject: RE: PBU L-205(PTD 208-053,Sundry 317-376) Plug for Redrill Kyle, The regulations(20 AAC 25.112(c)(1)(E))state the mechanical bridge plug should be set no more than 50 feet above the top of the perforations. A depth somewhat closer to the junction would be desirable. Thanx, Victoria From: Raese,J. Kyle [mailto:iohn.raese@bp.com] Sent:Tuesday,August 29,2017 12:21 PM To: Loepp,Victoria T(DOA)<victoria.loepp@alaska.gov> Cc:Allen, Kenneth W<Kenneth.Allen@bp.com>;Thompson,Jacob<Jacob.Thompson@BP.com>; Lastufka,Joseph N<Joseph.Lastufka@bp.com> Subject: RE: PBU L-205(PTD 208-053,Sundry 317-376) Plug for Redrill Victoria, The obstructions near the L5 junction appear to start at 4619'on the most recent slickline drifts to this depth. Note that this drift run was performed two years ago with tools slightly under gauge to the OD of the proposed 4-1/2"CIBP. My intent in proposing to set the CIBP at^'4100'was keep away from the obstructions in order to avoid issues setting the CIBP.That being said, it is likely possible to set the CIBP deeper than 4100'. Do you have a preferred depth range? The 7-5/8" annular TOC estimate was determined using volumes recorded during the cement job with an assumed 30%open hole washout(typical for our intermediate sections). No losses were noted during the job. Thanks, Kyle Raese Drilling Engineer BP Exploration (Alaska) o:907-564-4629 c:907-301-6405 From: Loepp,Victoria T(DOA) [mailto:victoria.loepp@alaska.gov] Sent: Friday,August 25, 2017 10:30 AM To: Raese,J. Kyle<john.raese@bp.com> Subject: PBU L-205(PTD 208-053,Sundry 317-376) Plug for Redrill John, Where is the top of the obstructions near the L5 junction? Can the CIBP be set deeper in the wellbore? How was the TOC in the 7-5/8" annular estimated? Thanx, Victoria Victoria Loepp 2 TREE= 4-1/16"DA/FLS,VVEL-205 Pre-Rig SAFET�ES:WELL ANGLE>70° 5257"""'MOTHERBORE ACTUATOR = FMC0 • LI, L2, L3, L4 & L5) ABOVEOBd SLOTS IS ALL 13CR(TBG,PUPS,LEMS) ACTUATOR= CNV ME60 ( KB.ELEV= 76.1' 20"GOND, H 153' BF.ELEV= 74.38' 129#,X-56, 2196' -14-1/2"HES X NIP,ID=3.813" KOP- 300' ID=18.770" GAS LIFT MANDRELS Max Angle= 103°©5$78' ret Cut tubing at--3540' PAD ST MD ND_DEV TYPE VLV LATCH PORT DATE Datum MD= N/A 4-1/2"CI8P at 4586'MD I 3 2349 2174 33 KBG2 DAY BK 0 11/16/11 Datum ND= 4400'SS WI 25'of dump bail cement 2 3220 2904 31 KBG2 DMY BK 0 11/16/11 10-3/4"CSG,45.5#,L-80 BTC,ID=9.95" - 3026' 11111 1 3338 3005 31 KBG2 SO BK 20 12/10/11 4-1/2"GAUGE CARRIER,ID=3.864" 3413' 'M 3429' -14-1/2"HES SLD SLV,ID=3.813" 4-1/2"GUAGE CARRIER,ID=3.864" --1 3453' .11! 3486' 4-1/2"HES X NIP, ID=3.813" ►, --I 3558' H7-5/8"X 4-1/2"HES TNT PKR,ID=3.856" 7-5/8" annular TOC at 4000' MD (30% washout) 1 3691' --14-1/2"HES X NIP,ID=3.813" 3620' --14-112"HES X NIP,ID=3.813" 4-1/2"TBG, 12.6#,13CRVAMTOP, H 3666' h. -------- 3659' H7-5/8"X 4-1/2"SEI IING SLV,ID=3.950" .0152 bpf,ID=3.958" �� ti`.: 3666' -14-1/2"MULESHOE,ID=3.958" 4-112 LNR, 12.6#,13C R-85 VAM TOP, - 4593' �i j1 •�••� 3673' 7-5/8"X 4-1/7 PREM PKR, ID=3.870" 0152 bpf, ID=3.958" �j 0 4605' 5-3/4"FORTED SEAL STEM ASSY, ID=4.750" 7-5/8"X 5-1/2"BKR ZXP LIP -1 4604' / 4624' -14-1/7 IBP(10/19/11) &TIEBK,ID=4.970" \ so C ll Oa_ L5(Nb) LEM WINDOW 47° 5-1/Z'X 4-1/2"XO,ID=3.940" -1 4624' /��` L5(Nb) 4-1/2" `/ RA TAG @ 6522' 4640'-4653' BAKER HOOK HANGER ASSY H 4636' '°"- - - -'Ear' - OPENING WIDTH=3,33" w/L3 SEALING LEM,ID=3.688" Ci 4781' -17-5/8"X 5-1/2"BKR ZXP LIP/TIEBK,ID=4.970" 7-5/8"RA TAG -1 4726' 1 4800' -119'SEAL BORE EXTENSION,ID=4.75" 13CR LEM#3 LOWER SEAL ASSY,ID=3.880" --1 4813' 4819' -15-1/2"X 4-1/2"XO. ID=3.958" BAKER HOOK HANGERASSY -1 4837' 1- - - - - ®_ _ w/L2 SEALING LBM,ID=3.688" L4(OA)LEM WINDOW 56° ®. L4( 4-1/2"RA TAG©6898' 4841'-4853' - - - ->��- - OPENING WIDTH=3.33" 7-5/8"RA TAG H 4943' 1--u 4945' --17-518"X 5-1/2"BKR ZXP LIP/TIEBK,ID=4.970" 13CR LEM#2 LOWER SEAL ASSY,ID=3.90" -1 4974' 0 0 4964' H 19-1/Z SEAL BORE EXTENSION, ID=4.75" BAKER HOOK HANGER ASSY 4999' w/Lt SEALING LEM,ID=3.688" 4983' 5-1/2"X 4-1/2"XO. ID=3.910" L3(OBa)LEM WINDOW 62° 7-5/8"RA TAG H 6084' �\ L3 pea) 4-1/2"RA TAG IQ 7357' 5002' 5015' 1 .-- ® OPENING WIDTH=3.33" 13CR LEM#1 LOWER SEAL ASSY,ID=3.88" -1 5148' NA j ....... 5101' H 7-5/8"X 5-1/2"BKR ZXP LTP/TIEBK,ID=4.950" 7 5/8"CSG,29.7#,L-80 BTC-M - 5582' 4-1/2"SOLID LNR, 12.6#, 13CR-80H 5594' X X� 51 51' 5.112"X 4-1/2"XO.ID=3.880" VAM TOP, .0152 bpf,ID=3.958" PERFORATION SUMMARY I I ..-:- REF -REF LOG:SWS LWD VARIOUS DATES ( L-205(0E314' ANGLE AT TOP FERF: N/A `;7p, Note: Refer to Production DB for historical perf data •" 5814 6"WED FLOW THRU ALUMINUM BILLET LNR IA (BEHIND SLOTTED LINER) SIZE SPF 1 INTERVAL Opn/Sqz DATE SEE PAGE 2 FOR PERFORATION INFORMATION ■ L1 I I I I E \ 4-1/2"SOLID LNR, 12.6#, L-80, - 8955' 1 LZ 5751' -6"WFD FLOW THRU ALUMINUM BILLET LNR .0152 bpf,ID=3.958" OBd) (BEHIND SLOTTED LINER) DATE REV BY COMMENTS ' DATE REV BY COMMENTS ORION UNIT 07/08/08 N9E5 ORIGINAL COMPLETION WELL: L-205,L1,L2,L3,L4&L5 11/17/11 D16 IaNO PERMT Na:2080530(540)(580)(550)(560)(570) 12/15/11 CK/JMD DRLG DRAFT CORRECTIONS(12/06/11) API No:50-029-23388-00(60)(64)(61)(62)(63) 12/08/11 PJC DRLG DRAFT CORRECTIONS SEC 34,T12N, R11 F,2361'FSL&1493'FW. 12/13/11 TRJMD TREE SWAP(11/21/11) _ 12/13/11 JLJ/JMD GLV C/O(12/10/11) BP Exploration(Alaska) • TREE= 4-1/16"CNVFLS WELLHEAD= FMC • L-205 SAFETY B:WaL ANGLE>70"(§5257'*•"MOT} ORE ACTUATOR= CM/MESO (L1, L2, L3, L4 & L5) ABOVEOBd SLOTS IS ALL 13CR(TBG,PUPS,LBAS) KB.ELEV= 76.1' I BF ELEV= 74.38' 9 2196' [-4-1/2"HES X NP,D=3.813" KOP= 300' 20"COPD, -I 153' GAS LFT MANDRELS Max Angle= 103° 5878' 1290,x-56, I ST MD TVD DEV TYPE VLV LATCH PORT DATE Datum MD= WAi 3 2349 2174 33 KBG2MY DBK 0 11/16/11 D=18.770" whim 4400'SS 2 3220 2904 31 KBG2 DMY BK 0 11/16/11 10-3/4"CSG,45.5#,L-80 BTC,D=9.95" H 3026' 1 3338 3005 31 KBG2 SO BK 20 12/10/11 4-1/7 GAUGE CARRtEIR D=3.864" 3413' 1 1 3429' H4-1n"FES SLD SLV,D=3.813 4-1/2"GUAGE CAS D=3.864" -I3463' _ ' d 3486' -14-1n"HES X NP,13=3.813" I4-112`XX PLUG w/EQ DEV(10/23/16) --{ 3486' 3558' H7-5/8"X 4-1/7'FES TM PKTi D=3.856" 4----------.... 36s1' -{a-tn"1-E5 X NP,D=3.$13" Minimum ID: 3.688" @ 4837' 3620' H4-1/2"HES X NP,D=3.813" BKR HOOK HGR ASSY wJSEALING LEM 3659' H7-5/8"x 4112"SETTING SLV,D=3.950" 41/2'TBG,12.6#,13CR VAM TOP, - 3666' u .0152 bpf,D=3.958" .1�i ►.��� 3666 J I4-in'MULESFNaE D=3.958" 4-1/2"LNR,12.6#,13CR-85 VA M TOP, H 4593' � �+� o,4•• 3673' -I7-51$"X 4112"PREM PFCR D=3.870' .0152 bpf,D=3.958" J �A�4 ���• L 4606' J-j 5-314"PORTED SEAL STEIN ASSY,D=4.750" 7-5/8"X 5-1/2"BKR ZXPLTP -i 4604' /% 4624 H4-1/2"BP(10/19111) &TEB • K,D=4.970" 0 \ C ll L5(Nb)LWW 47° L5 b 4_1/2- RA TAG @ 6522' 4640'-4653' 5-1/2"X 4-1/2"xo,13=3.940" H 4624' - BAKER HOOK HANGER ASSY H 4636' -tor - WDTH=3.33" w I L3 SEALING LBM,D=3.688' 0 4781' H7-5/8"X 5-1/2"BKR ZXP LIPMEBK,D=4.970" 7-5/8"RA TAG - 4726' 4800' --119'SEAL BORE EXTENSION,D=4.75" 13CR LEM#3 LOWER SEAL ASSY,D=3.880' H4813' 4819' H5-in"X41/2"XO.D=3.958' BAKER HOOK HANGER ASSY -I 483T r w/L2 SEALING LBM,HD=3.688" L4(OA)LBN W 56° (ON 4-1/2"RA TAG @ 6898' 4841'-4853' F 7-5/8"RA T AG H 4943' 1--I OPBOIG WIDTH=3.33" 4945' H7-5/8"X 5-1/2"BKR ZXP L1WTEBK,D=4.970' 1 13CR LEM#2 LOWER SEAL ASSY,D=3.90" H 4974' 4964 H 19-1/7 SEAL BORE EXTENSION,D=4.75" BAKER HOOK HANGER ASSY -{ 4999' w/Lt SEALING LBM D=3.68$" 4983' -15-1/2"X 4-1n"XO.D=3.910" 7-5/8"RA TAG H 5084' L3op, @(OBa) 4-1/2"RA TAG7357' L3( 5002 5015'W#DOW 62° .7. OPEWG 13CR LEM#1 LOWER SEAL ASSY,D=3.88" 5148' WIDTH=3.33" 1 5101' H 7-5/8"X 5-1/2'BKR ZXP LTWTEBK,D=4.950' 1 7 518'CSG,29.7#,L-80 BTC-M --1 5582' :mum.0459 bpf. D=6.875" 5132* }-119'SEAL BORE EXTBNSION,D=4.75" 4-1/2"SOLD LNR,12.6#,13CR-80 --1 5594' IX VAM TOP,.0152 bpf,D=3.958' I 5151' -15-1/7 X 4-1/7 XO.D=3.880" 181 PERFORATION SUMMARY I REF LOG:SWS LW)VARIOUS DATES I L-205(OBb) ANGLE AT TOP PERE: WA I R• ;" Note:Refer to Production DB for historical perf data `" 5814' -6'WFD FLOW TI-RU ALIAMNLAM BLLET LM SEE J SPF I+ITE VAL Opn/Sqz DATE11 (864PI)SLOTTED LING) SEE PAGE 2 FOR PERFORATION INFORMAT ONL1 (OBC) I I I I � a 4-1/2'SOLD LNR, 12.6#,L-80, -I 8955' � FR.� L2 a 5751' 6'WFD FLOW 11-RU ALUMNLAM BLLET LNR .0152 bpf,D=3.958' , 'OBd) (BBNND SLOTTB)LINB1) DATE REV BY COMENTS DATE REV BY COMANTS ORION UNIT- 07/08/08 i TT07/08/08 N9E5 ORIGINAL COMPLETION 10/24/16 ZV/JM) SET XX PLUG(10/23/16) WELL: 1-205,11,12,L3,14&L5 11/17/11 016 RWOPERMT No:2080530(540)(580)(550)(560)(570) 12/15/11 CK/JMD DRLG DRAFT CORRECTIONS(12/06/11) , AR Nb:50-029-23388-00(60)(64)(61)(62)(63) 12/08/11 RIG DPLG DRAFT CORRECTIONS SEC 34,T12N,R11E,2361'FSL&1493'FWL 12/13/11 TP/JM) TREESWAP(11/21/11) 12/13/11 JLJ/JM) GLV C/O(12/10/11) BP Exploration(Alaska) . • L-205 0 (L1 , L2, L3, L4 & L5) I A 1 LI 1110 I B _. ►z 4•4 •• .:�� �#: -, N1 MTD KUM cm 6a - . - IR1 - - ►_. 4-1/2"SWELL 1:(R @ 4704'. 5449',6540'&7035',D=3 90 '• - - - ---/E-- - ._. .4 PERFORATION SUIWARY 0 4636'-8630',6 75"L S FIT LOG.SWS LWD VARIOUS DATES 4-1,7 LNR, L-80 6T-M 0152 bpf ID=3 958" ANGLE AT TOP FEW.WA Note; Refer to Roduction DB for historical perf data OA PBTD H 8750' SIZE SPF ZONEI MERVAL Opn/Sqz DATE / 4-1/2" SLTD Nb 5480-6522 "C 07/05/08122_0; - - 4-1/2" SLTD Nb 7061 -8574 "C 07/05/08 `4-1/2"SWELL FKR @ 4925',5279',6915'&7419",D=3.90" 4-112" SLTD OA 5320-6898 0 06/29/08 .._' MT—Mr 4-1/2" SLTD OA 7445-8709 0 06/29/08 .� 4853' 8763',6.75"L4 (OA 4-1/2" SLTD OBa 5478- 7357 0 06/23/08 coLNR. L-80 18T-M. 0152 bpf. iD= 3 958" 4-1/2" SLTD OBa 7918-8797 0 06/23/08 4-1/2' SLTD OBb 6382-8910 0 06/06/08 CliBa 4-1/2' SLTD OBc 5774-6098 0 06/10/08 PBTD 8839' 4-1/2" SLID OBc 6413-8948 0 06/10/08 \ rgi 4-1/2" SLTD OBd 5594-5827 0 06/16/08 4-1/2'SWELL PKR@ 5045',5419',7374'8 7893".D=3-90" 4-1/2" SLID OBd 5913-7501 0 06/16/08 . 4-1/2" SLID OBd 8020-8886 0 07/07/08 4999'-8850'.675"L3 (0Ba) - 7' '_NR L-80 BT-M, 0152 bpf,ID=3-958" "NB F82FS ISOLATED ` OBb PBTD H 8951' X 4-1/2'SWELL MR @ 5842',D=3.90" 1IP: [---- 5813'-8953 6.75"i_ 1 �Co •.!' 4-1/2"RA T AG 5847' 4-1r2"LNR L-80 iBT-tit -0152 bpf. ID=3 958" _ II'. OBc PBTD 8988' -, [4-112"SWELL D L R( =3.90"_I 5865' i I '"• 4-1/2"SWELL PKR @ 6116',D=3.90" 4-•1/2"RA TAG 7508' " 4-1/2"SWB_L Rff,D=3.90' — 7526' 5751'-8990'.6.75"i GOB;. �� 1.� 4-1'2"LNR L-80 BT-M. 0152 bpf C=3 958' 4-1/7 SWH.L PKR,D=3.90" -- 7996' oed F$TD 8955' is 12 5101'-8965',6 75"1...2 c OB F d; 4-1/2"LNR L-80 IBT-M. 0152 bpf ID=3 958" DATE REV BY ! COMMENTS DATE ' REV BY COP flS ORION UNIT 07108/08 1 ES I ORIGINAL COMPLETION 10/24/16 ZV/JMD SET XX PLUG(10/23/16) WELL L-205,L1,L2,L3,L4 8 L5 - f 11117/11 1)16 RVYO FERMI No:2080530(540)(580)(550)(560)(570) 12/15/11 CK/JM] DRLG DRAFT CORRECTIONS(12/06/11) AR No 50-029-23388-00(60)(64)(61)(62)(63) 12/08/11 PJC DRLG DRAFT CORRECTIONS SEC 34,T12N,R11 E,2361'FSL 8 1493 FWL 12/13/11 TRJMD TREESWAP(11/21/11) _ 12/13/11 JLJ/JMD,GLV C10(12/10/11) __ J BP Exploration(Alaska) " -.FAD= 11.E PROPOOD L_ S Y NOTES: WELL ANGLE>70°@ ACTUATOR= REV 2 (J KR) 20 ***CHROMECSGSTBG*** OKB.ELEV= 77.6' r` -� BF.ELEV= 53.80' KOP= 380' 20#COM) H 153' / I 14 112"HES X NP,13=3.813" Max Angle= _°@ µ yINpq/V(L-905y 2933RD GAS LIFT MANDRELS Datum MD= ST MD TVD DEV TYPE VLV LATCH FORT DATE Datum TVD= 4400'SS 10-314"VVHPSTOCK( /_I H 2900• 10-3/4"CSG.45.5#,L-80,ID=9.95" -{ 2900' 1i �]C % X 7-518"CSG,29.7#,L-80 X0 TO 13CR-80 - VAM TOP HC,D=6.875" I I I I-14-1/2" HES SLD SL Minimum ID = 3"725" @ XXXX' r 4-1/2"SGM-NDFG-CA SINGLE DROPSAFPF-IRE 4-1/2" HES XN NIPPLE GAUGE D=3.864• H. 1/2"HES X NP,D=3-813" RA TAG 4-1/2"TUBING COLLAR - a RA TAG 7-5/8"CSG COLLAR - rZ d:Z 17-518"X 4-1/2"HES TNT PKR D=3.856" I 4-112"HES X NP,D=3.813" ■71 H 4-1/2"NCS FRAC FORT,ID=3.958• 41iii mu„, 4 H4-1/2"NCS SCREEN SLEEVE,D=3.958" /\ /�, H7-5/8"X 4-1/2"HES TNT FKR,D=3.856" 1111111117 H4-1/2"NCS FRAC FORT,13=3.958" uu un m -4-1/2"NCS SCREEN SLEEVE,D=3.958" ZX H7-5/8"X 4-1/2"HES TNT FKR,13=3.856" 1 1 H 4-1/2"NCS FRAC FORT,D=3.958• mini m H4-112"NCS SCREEN SLEEVE,D=3.958" XX -17-5/8"X 4-1/2"HES TNT PKR,D=3.856" PERFORATION SUMMARY1'17 -I4-1/2"NCS FRAC PORT,D=3.958" REF LOG: ANGLE AT TOP PERF: Note:Refer to R-oduction DB for historical pert data lin nil III 4 1/2" NCS SCREEN SLEEVE SIZE SPF ZONE NT9r/AL Cpn/Sgz DATE H1-5/8"X 4-112"HES TNT FKR,D=3.856" 4-3/8" 7 Nb 6175-6297 MD X >(/\ 4-1/2"NCS FRAC PORT,D=3.958" 4-3/8" 7 OA 6560-6670'MD 0 I 1 4-3/8" 7 OBa 6731-6814'MD 0 4-3/8" 7 OBb 6833-6892'IV) 0 4-3/8" 7 OBc 6987-7073'MD 0 H4-1/2"NCS SCREEN SLEEVE,D=3.958" 4-3/8" 7 OBd 7120-7260'MD 0 III nit l IIII 4-3/8" 7 OBe O X Z -7-5/8"X 4-1/2"I ICS TNT FKR,D=3.856" 1 1 H4-1/2"NCS FRAC FORT,D=3.958" H4-1/2"NCS SCREEN SLEEVE,D=3.958" XIX H 7-5/8"X 4-1/2"HES TNT PKR,13=3.856" 4-1/2•TBG,12.6#,13CR-80 VAM TOP - .0152 bpf,ID=3.958' 7-5/8"CSG,29.7#,13CR-80 VAM TOP HC, - 7531' 1 I H 4-112"HES XN NP,D=3.725" D=6.875" -- -14-1/2"VVLEG,13=3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS ORION UNIT 02/22/04 N9ES ORIGINAL COMPLETION WCL: L-205A 11/25/09 D-16 RWO PERMfT No: / f SIDETRACK(L-205A) API No: 50-029-23388-01 08/08/16 MI BOLT PROPOSED SEC 34,T12N,R11 E,2361'FSL&1493'FWL 08/08/16 JH BULT PROPOSED REV 1 BP Exploration(Alaska) • o • 0 g U • o ; ce O ce rc 0 3 0 3 a s aaa Z 3 O O 33 pp0 . 2 U 9 o o 8o2 roto a_ "nm3ri e-iRS _ ida ? $a" 2 ,cga L7., o:gaiv3i\ §,7..AiH v3iv3ivmm d:L72.,7iv3i ma_ • m ��....._. )r,',1,101,,,,.._,_ U 2MI1 r1 nn\ = nMM CO m ca tvvfr I� --- LI__ i i o 1 1 L Qt II L s 3 CY Bi i o5 A -ao o,- s _ _ am Qho, o__ _— W w,, wkk Is �'rcsig C�3 0 ,o., m - Z ( 0 0-nn an vv�� yy i a 7-7 •//Lhll S�_ �� � \ , i..1 =4\.., ..! jt - 1 \ ' , 6.1, p ,.• '-,_ �1-F� illi �-e IP. UV) , a 4 j:_ t -- . ��W Rw a_ W"X Z� e1, i• ! g eww.61 8t,12 i W 1, E;:5 m :o I\,i 1 -am i-}- - —__ r oo w no P4' 8W o n'a ` \ 3 nc As 0* � -A-.6 to o ('Sia)M030 9Ni1Mi m O 23241 9'0'1 - - .a s ,t 1 Z U M 7 0 —,1/C 6-,9 .U-,tt ,Z/t OL-,LZ 3 O O x S .0 C-z1 QC) o J Ft' (331.a0ai130) ,6191, TREE= 4-1/16"'CNV FLSIII L-205 Pre-Ri V ELLHEAD= FMC g SAFETY:WELL ANGLE>70°@ 5257'***MOTHERBORE ACTUATOR= CNVME60 (L1, L2, L3, L4 & L5) ABOVEOBd SLOTS IS ALL 13CR(TBG,PUPS,LEMS) KB. ELEV= 76.1' 20"COND, H 153' BF. ELEV= 74.38" 129#,X-56, 2196' -14-1/2"HES X NIP,ID=3.813" KCP= 300' ID=18 770" GAS LIFT MANDRELS Max Angle= 103°@ 5878' Jet Cut tubin.at 3540' MD 1ri' �- ST MD TVD DEV TYPE VLV LATCH PORT DATE Datum MD= N/A 4-1/2"CIBP at-4100'MD N -C N1 2349 2174 33 KBG2 CMY BK 0 11/16/11 Datum TVD= 4400'SS w/25'of dum.bail cement (y J 2 220 29()4 31 KBG2 DMY BK 0 11/16/11 10-3/4"CSG,45.5#,L-80 BTC,ID=9.95" 3026' J 1 3338 3005 31 KBG2 SO BK 20 12/10/11 4-1/2"GAUGE CARRIER,ID=3.864" 3413' OM 3429' H4-1/2"HES SLD SLV, ID=3.813" 4-1/2"GUAGE CARRIER, ID=3-864" -f 3453' 1 3486' 412 HES X NIP;ID 3.813"- ,�t ►M 3558' H7-5/8"X 4-1/2"FES TNT PKR, ID=3.856" 7-5/8" annular TOC at-4000' MD (30%washout) 1 3591' -14-1/2"HES X NIP,ID=3.813" 3620' H4-1/2"HES X NIP,ID=3.813" 4-1/2'TBG,12.6#, 13CRVAM TOP. - 3666' 3659' H7-5/8"X 4-1/2"SE I IINGSLV, ID=3.950" 0152 bpf,ID=3.958" GG/ '>Z' ►Z�. ���. tt��� 3666' -14-1/2"MULESHOE,ID=3.958" 4-1/2"LNR, 12.6#,13CR-85 VAM TOP, -) 4593' -4 4.4 ►�t�t ► 3673' 7-5/8' X4-1/2'PREM PKR ID=3.870" .0152b f,ID=3.958" �� P ,i � �� -'" 4605' 5-3/4"PORTED SEAL STEM ASSY,ID=4.750" 7-5/8"X 5-1/2"BKR ZXP LW 4604' ) &TIEBK,ID=4.970 ' 1,0 ��6��' ■ 4624' -I4-1/2 IBP(10/19/11) 5-1/7'X 4-1/2'XO,ID=3.940" -) 4624' / , L5(Nb) LEM WINDOW 47° L5(Nb) 4-1/2" H RA TAG @ 6522' 4640'-4653' BAKER HOOK HANGER ASSY H 4636' ® - - --1:ar- - s OPENING WIDTH=3.33" WI L3 SEALING LEM,ID=3.688" O. 0 4781' H7-5/8"X 5-1/7'BKR ZXP LTP/TIEBK,ID=4.970" 7-5/8"RA TAG 4726' I4800' 13CR LEM#3 LOWER SEAL ASSY,ID=3.880" -' 4813' 19'SEAL BORE EXTENSION,ID=4.75" 4819' -15-1/2"X 4-112"XO.ID=3.958" BAKER HOOK HANGER ASSY H 4837' - - w!L2 SEALING LEN,ID=3.688" �1;�- - L4(OA i LEM WINDOW'56° E\ L4{� 4-1/2"RA TAG @ 6898' 4841'-4853' OPENING'WIDTH=3.33 7-5/8"RA TAG 4943' '. 4945' 17-5/8"X 5-1/2"BKR ZXP LTP/TIEBK,ID=4.970" 13CR LEM#2 LOWER SEAL ASSY,ID=3.90" H 4974' ►�4 ►�4 BAKER HOOK HANGER ASSY -{ 4999' li 4964' H19-1/2'SEAL BORE EXTENSION,ID=4.75" w t L1 SEA LING LEM,ID=3.688" 4983' -15-1/2"X 4-1/2"X0 ID=3.910" .-., i L3(08a)LEM WINDOW 62° 7-5/8"RA TAG -1 5084' L3(oga) 4-1/2"RA TAG @ 7357' 5002' 5015' 13CR LEM#1 LOWER SEAL ASSY, ID=3.88" -1 5148' OPENING WIDTH=3.33" ati 5101' -17-5/8"X 5-1/7'BKR ZXP LTP/TIEBK,ID=4.950" 7 5/8"CSG,29.7#,L-80 BTC-M -{ 5582' • .0459 bpf. ID=6.875" 5132' -119'SEAL BORE EXTENSION,ID=4 75" 4-1/2"SOLID LNR,12.6#,13CR-80 H 5594' VAM TOP, .0152 bpf,ID=3.958" I I 5151' 5-1/2 X 41/2 XO. ID=3.880" I PERFORATION SUMMARY .7. REF LOG'SWS LWD VARIOUS DATES I I L-205(Mb) ANGLE AT TOP PERF' N/A I� ,4 1 5814' j---I5"WFD FLOW THRU ALUMINUM BILLET LNR Note: Refer to Production DB for historical pert data !' SIZE] SPF INTERVAL ] Opn/Sqz I DATE IA ((BEFiINDSLOTTEDLINER) SEE PAGE 2 FOR PERFORATION INFORMATION E 8 Li (OBG) __ I I I l ■ .: 4-1/2"SOLID LNR,12.6#,L-80, H 8955' 2 L2 0 5751' -6"WFD FLOW THRU ALUMINUM BILLET LNR .0152 bpf,ID=3.958" \OBd) (BEHIND SLOTTED LINER) DATE REV BY COMMENTS DATE REV BY COMMENTS ORION UNIT 07/08/08 N9ES ORIGINAL COMPLETION WELL. L-205,L1,L2,L3,L4&L5 11/17/11 D16 RWO PERMIT No.2080530(540)(580)(550)(560)(570) 12/15/11 CK/JMO DRLG DRAFT CORRECTIONS(12/06/11) _ AR No'50-029-23388-00(60)(64)(61)(62)(63) 12/08/11 PJC DRLG DRAFT CORRECTIONS SEC 34,T12N,R11 E,2361'FSL&1493'FVVL 12/13/11 TP/JMD ,TREE SWAP(11/21/11) 12/13/11 JLJIJMD j GLV CIO(12/10/11) I BP Exploration(Alaska) Sundry Application Plug for Re-drill Wells Work Flow This process is used to identify wells that are suspended for a very short time prior to being re- drilled. Those wells that are not re-drilled immediately are identified every 6 months and assigned a current status of"Suspended." Step Task Responsible 1 The initial reviewer will check to ensure that the "Plug for Redrill"box Geologist / in the upper left corner of Form 10-403 is checked. If the "Abandon"or "Suspend"boxes are also checked, cross out that erroneous entry and ✓ initial it on both copies of the Form 10-403 (AOGCC's and operator's copies). 2 If the "Abandon"box is checked in Box 15 (Well Status after proposed Geologist work)the initial reviewer will cross out that erroneous entry and initial then it on both copies of the Form 10-403 (AOGCC's and operator's copies). Instead, check the "Suspended"box and initial that change. Drilling Engineer The drilling engineers will serve as quality control for steps 1 and 2. (QC) 3 When the Stat Tech receives a Form 10-403 with a check in the"Plug Stat Tech for Redrill" box, they will enter the Typ_Work code "IPBRD" into the History tab for the well in RBDMS. This code automatically generates a comment in the well history that states "Intent: Plug for Redrill." 4 When the Stat Tech receives any Form 10-407, they will check the Stat Tech History tab in RBDMS for the "Intent: Plug for Redrill"code (IPBRD). If present and there is no evidence that a subsequent re-drill has been COMPLETED, the Stat Tech will assign a status of SUSPENDED to the well bore in RBDMS no matter what status is listed on the 10-407. The Stat Tech will also change the status on the 10-407 form to SUSPENDED, and date and initial this change. If the Stat Tech does not see the "Intent: Plug for Redrill"comment or code, they will enter the status listed on the Form 10-407 into RBDMS. 5 When the Form 10-407 for the redrill is received, the Stat Tech will Stat Tech change the original well's status from SUSPENDED to ABANDONED. 6 The first week of every January and July, the Stat Tech and one of the Stat Tech Geologists will check the "Well by Type Work Outstanding"user query Geologist in RBDMS to ensure that all of the Plug for Redrill wells have been handled properly. At this same time, they will also review the list of suspended wells for accuracy. • Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. ~~ - ~~~ Well History File Identifier Organizing (done) RES N olor Items: ^ Greyscale Items: ^ Poor Quality Originals: ^ Other: NOTES: or.a.aeaiuuii~iuuimi ~Reu,~~,~eeiuuiiiuiuiuii DIGITAL DATA OVERSIZED (Scannable) iskettes, No. ~ ^ Maps: ~~Other, No/Type: (~,~ I v0 ~ ^ Other Items Scannable by VV a Large Scanner BY: ~ Maria ~_ Date: ~~ I Project Proofing gY: Maria Date: 'a. Scanning Preparation 5 x 30 = BY: Maria Date:. ~' Production Scanning OVERSIZED (Non-Scannable) ^ Logs of various kinds: ^ Other:: /s/ /s/ .SO ~ =TOTAL PAGES 1 ~ 3 (Count does not include cover sheet) , n/~ ~~ /s/ V Y ~ Stage 1 Page Count from Scanned File: ~ (Count does include cover sheet) Page Count Matches Number in Scanning Preparation: YES NO BY: Maria Date: ~ ~ 1 © /s~ ~, Stage 7 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ IIIIIIIII nnin is com lete at this Dint unless rescanning is required. III II'I II I Sca g p P ReScanned III 111111 IIIII II III BY: Maria Date: ~s~ ut this file: Quality Checked III (I~III III II'l 111 Comments abo 10/6!2005 Well History File Cover Page.doc *TATE OF ALASKA • 7 ALASKA OIL AND GAS CONSERVATION COMMISSION / 4 REPORT OF SUNDRY WELL OPERATIONS ;I I: 1 5 ?Oil 1. Operations Performed: Alaska Oil & Gag Cam Comma 51011 ❑ Abandon ® Repair Well ❑ Plug Perforations ❑ Stimulate ❑ Re -Enter Suspended Well ® Alter Casing ® Pull Tubing ❑ Perforate New Pool ❑ Waiver ❑ Other ❑ Change Approved Program ❑ Operation Shutdown ❑ Perforate ❑ Time Extension 2. Operator Name: 4. Well Class Before Work: 5. Permit To Drill Number: BP Exploration (Alaska) Inc. 0 2 Development ❑ Exploratory 208 - 053 3. Address: ❑ Service ❑ Stratigraphic 6. API Number: P.O. Box 196612, Anchorage, Alaska 99519 - 6612 — 50 - 029 - 23388 - 00 - 00 7. Property Designation: 01nA 8. Well Name and Number: I?►`N‘P ADL 028241 ®; 21231 . L -205 9. Field / Pool(s): Prudhoe Bay Field / Orion Schrader Bluff 10. Present well condition summary Total depth: measured 8953' feet Plugs (measured) None feet true vertical 4360' feet Junk (measured) None feet Effective depth: measured 8953' feet Packer: (measured) 3558' feet true vertical 4360' feet Packer: (true vertical) 3194' feet Casing Length Size MD TVD Burst Collapse Structural Conductor 153' 20" 153' 153' Surface 2997' 10 -3/4" 3026' 2739' 5210 2480 Intermediate 5559' 7 -5/8" 5583' 4466' 6890 4790 Production Liner 3140' 4 -1/2" 5813' - 8953' 4465' - 4360' 8430 7500 Scab Liner 946' 4 -1/2" 3659' - 4605' 3281' - 4057' Perforation Depth: Measured Depth: 6382' - 8910' ( d ' True Vertical Depth: 4348' - 4361' Tubing (size, grade, measured and true vertical depth): 4 - 1/2 ", 12.6# 13Cr 3666' 3287' Packers and SSSV (type, measured and true vertical depth): 7 - 5/8" x 4 HES 'TNT' Packer 3558' 3194' 11. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment description including volumes used and final pressure: Cut and pull tubing. Run scab liner and cement with 34 Bbls Class 'G'. Run new completion. 12. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 13. Attachments: ❑ Copies of Logs and Surveys run 14. Well Class after work: ❑ Exploratory . 0 Development ❑ Service ❑ Stratigraphic ® Daily Report of Well Operations ® Well Schematic Diagram 15. Well Status after work: ❑ GINJ % 0 Oil ❑ SUSP ❑ WDSPL ❑ Gas ❑ GSTOR ❑ SPLUG ❑ WAG ❑ WINJ 16. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: Contact Sean McLaughlin, 564 -4387 311 - 279 Printed Name Terrie Hubble Title Drilling Technologist /' I / ` Prepared By Name /Number: Signature / ■ '4 4 / Phone 564 - 4628 Date Il k�1 Terrie Hubble, 564 -4628 Form 10-404 Revised 10/2 • Y ■ DEC 16 2011 Z,, 12 �= bmit Original Only • • L -205 ML, Well History (Pre Rig Workover) Date Summary 07/05/11 WELL SHUT IN ON ARRIVAL. MADE 5 RUNS W/ 10' x 3.50" PUMP BAILER, BAILED FROM 4480' SLM TO 4506' SLM, RECOVERED 20 GALS OF FINE SAND /CLAY. 07/06/11 MADE MULTIPLE BAILER RUNS TO 4 -1/2" PX -PLUG AT 4,539' SLM. (recovered 3 -5 gals sand /clay) PULLED EQ -PRONG FROM 4 -1/2" PLUG BODY AT 4,539' SLM. MADE 1 ATTEMPT TO PULL 4 -1/2" PX -PLUG BODY AT 4547' SLM. 07/07/11 PULLED 4 -1/2" PX -PLUG BODY FROM X -NIP @ 4,547' SLM (4,569' MD). LRS ASSISTED W /BRUSH AND FLUSH 150 BBLS CRUDE TO 4,609' SLM. PULLED BKR ISOLATION SLEEVE FROM 4,607' SLM (4640' MD) (all intact). RUN PDS 40 ARM CALIPER FROM 4,579' SLM TO SURFACE.(good data) SET 4 -1/2" (3.69" SPECIAL CLEARANCE) WFD WRP W/ HES DPU @ 4,290' SLM (4,320' MD). WELL S/I ON DEPARTURE, PAD OPERATOR NOTIFIED. 08/01/11 WELL SHUT IN UPON ARRIVAL. INITIAL T /I /O = 340/240/0 PSI. CURRENTLY RIGGING UP ELINE UNIT TO RUN TECWELL LDL. 08/02/11 LOGGED BASELINE FROM SURFACE TO 4294' AT 100 FPM. DID STATION COUNTS ON BOTTOM WHILE LRS STARTED PUMPING 2% KCL. DID LOG UP PASSES AT 30 FPM FROM 4294' UP TO SURFACE. NOTICED ANOMALIES. WENT BACK TO 4292' AND BEGAN REPEAT PASS AT 30 FPM. FLUID MOVING DOWN IN IA LOWER THAN PLUG SET IN TUBING, MADE WARMBACK PASSES. PDS TO PRESENT DATA WHEN THEY FINISH PROCESSING IT. FINAL T /1 /0= 350/250/0 JOB COMPLETE. 09/22/11 WELL S/I ON ARRIVAL. RIG UP ON WELL, PROBLEM WITH PT EXPRESS. PULL WRP @ 4302' SLM, ALL ELEMENTS RECOVERED. SET 4 1/2" X CATCHER SUB. 09/23/11 SET X C -SUB @ 4,559' SLM. PULLED DGLV FROM ST #1 @ 4,326' SLM (4,339' MD). PULLED EMPTY X C -SUB FROM 4,559' SLM. WELL LEFT S/I ON DEPARTURE, NOTIFY PAD -OP. 10/17/11 MIRU, weekly BOP test. MU SPE on well, MU BOT MHA w/ Drift nozzle. RIH and jet across Baker hanger at 4636'. RIH clean to 4750'. POH. 10/18/11 Continue POH. Saw parafin on tools. RIH and jet hot water and hot diesel across Baker hook hanger at 4636'. RIH clean to 4750'. POH. Freeze protect coil. MU BOT L -3 diverter & running tools, PT & RIH. Clean out L -5 with Hot KCL, make dry drift runs, w/2.47" JSN. RD drift tools, MU IBP & setting tools, OAL 22.29'. RIH with IBP. Ran past diverter clean. Set IBP at 4800'. Let IBP element inflate fluid thermally stabilize. 10/19/11 Set IBP at 4800' in Lateral #5, Let IBP thermally stabilize. Set with 2020 psi. Stacked 2000# wt down. IBP holding. Pick up clean and pull thru diverter clean. POH. PJSM. Lay out running tools. M/U diverter fishing BHA. RIH latch fish. Pull free and POH with diverter. Freeze protect tubing to 2500', Lay out diverter and fishing tools. Secure well. Rig down CTU. N/U tree cap and press test. Job Complete. 10/20/11 T /I /O= SSV /240/0 Temp =Sl PPPOT-T (PASS) PPPOT -IC (PASS) (Pre RWO) PPPOT -T : RU 2 HP BT onto THA 150 psi bled to 0 psi, flush void until clean returns achieved. Pressured to 5000 psi for 30 minute test, 5000/ 15 minutes, 5000/ 30 minutes. Bled void to 0 psi, RD test equipment, re- installed Alemite caps. Cycle and torque LDS "ET style" all functioned with no problems. PPPOT -IC : RU 2 HP BT onto IC test void 200 psi bled to 0 psi, flush void until clean returns achieved. Pressured to 3500 psi for 30 minute test, 3500/ 15 minutes, 3500/ 30 minutes. Bled void to 0 psi, cycle and torque LDS "ET style" all functioned with no problems. Page 1 of 2 • • L -205 ML, Well History (Pre Rig Workover) Date Summary 10/22/11 WELL SHUT -IN ON ARRIVAL. SSV CLOSED, INITIAL T /I /O 250/250/0 RAN WEATHERFORD WRP TO 4631', DEPTH CORRECTED TO TUBING TALLY. UNABLE TO SEE PUP JOINTS IN BAKER HANGER TO VERIFY DEPTH OF WHERE WE ARE EXACTLY AT, DECISION MADE TO PULL OUT OF THE HOLE BEFORE SETTING PLUG DUE TO ONLY DEPTH REFERENCE IS THE TBG TALLY, AND UNCERTAINTY OF WHERE THE MIN. I.D. ARE INSIDE. PLAN TO RETURN IN MORNING AND RUN JEWELRY LOG TO VERIFY DEPTHS OF HANGER VS TUBING TALLY AND RE -RUN PLUG. LEFT WELL SHUT -IN, NOTIFIED DSO RETURNING IN MORNING, SITE SECURED FOR NIGHT. " "" NOTE: COLLAR LOCATOR COVERED IN METAL DEBRIS, MAINLY HEAVY FILINGS. MOST LIKELY CAUSE OF STICKING WHILE RIH AND POOH 10/23/11 RAN JEWELRY LOG TO 4700 THROUGH TOP HOOK HANGER, SET 3.69 WEATHERFORD WRP PLUG @ 4631' MD, TOP OF PLUG © 4629, OAL= 2.54'. DEPTH CORRECTED TO TUBING TALLY. SET PLUG IN BAKER LEM AS PER PROGRAM. SLACKED OFF WEIGHT AFTER SETTING TO CONFIRM SET. HAND OVER WITH DSO PRIOR TO DEPARTURE, FINAL T /I /O 250/250/0 JOB COMPLETE. 10/24/11 WELL S/I ON ARRIVAL. RIG UP SWCP 4516 TO DUMP BAIL 15' OF SLUGGITS ON 4 -1/2" WFD WRP 4,631' MD. 10/25/11 DUMP BAILED --15' OF SLUGGITS ON 4 -1/2' WFD WRP Q 4,610' SLM / 4,631' MD. WELL S/I ON DEPARTURE, NOTIFIED PAD OPERATOR OF WELL STATUS. 10/27/11 WELL SHUT -IN UPON ARRIVAL. INITIAL T /I /O= 0/0/0/ PSI. CHEMICAL CUT 7.625" X 4.5" BAKER PREMIER PACKER AT A DEPTH OF 4547.41'. CHEMICAL CUT WAS MADE WITH A 3.625" CHEMICAL CUTTER, GOOD INDICATION AT SURFACE THAT TOOL FIRED, RDMO. FINAL T /I /O = 0/0/0 PSI. JOB COMPLETE. WELL LEFT SHUT -IN UPON DEPARTURE. Page 2 of 2 ! • North America - ALASKA - BP Page 1 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/31/2011 07:00 - 09:30 2.50 MOB P PRE PJSM- BRIDAL UP DERRICK; RD FLOOR AND PREP TO MOVE RIG OFF S -102 09:30 - 10:30 1.00 MOB P PRE PJSM - LOWER DERRICK 10:30 - 12:00 1.50 MOB P PRE PJSM- MOVE RIG OFF WELL S -102 WITH PAD OPERATOR OVERSIGHT - REFERENCE AND REVIEW - SOP DRILLING/WORKOVER SURFACE CLOSE PROXIMITY RP 12:00 - 16:30 4.50 MOB P PRE PJSM- REMOVE BOPE STACK FROM CELLAR AND SECURE TO TRANSPORT RACK. - INSTALL FRONT AND REAR BOOSTER. 16:30 - 00:00 7.50 MOB N WAIT PRE WHILE WAITING ON L -PAD PREP WORK TO BE COMPLETED. - PERFORM DETAILED VISUAL INSPECTION ON LOWER PORTION OF DERRICK WHILE IT IS DOWN. - UTILIZE MANLIFT TO VISUAL INSPECT UPPER DERRICK ZONE AND CROWN SECTION. - WELDER WORKING ON ADJUSTMENTS ON MP POP -OFF LINES, 11/1/2011 00:00 - 12:00 12.00 MOB N WAIT PRE WAITING ON L -PAD PREP. - COMPLETE PM'S AND GENERAL MAINTENANCE. - CONTINUE WITH VISUAL DERRICK INSPECTION. 12:00 - 00:00 12.00 MOB N WAIT PRE WAITING FOR WIND TO LAY DOWN - COMPETE PM'S AND GENERAL MAINTENANCE - CONTINUE TO MOVE RIG EQUIPMENT TO L -205 11/2/2011 00:00 - 10:00 10.00 MOB N WAIT PRE STANDBY FOR WIND - GENERAL RIG MAINTANENCE 10:00 - 22:00 12.00 MOB P PRE MOBILIZE RIG FROM S PAD TO L PAD S PAD ACCESS ROAD TO SPINE ROAD, LEFT ONTO SPINE ROAD TO LN PAD ACCESS ROAD L PAD ACCESS ROAD TO L PAD PULL RIG ONTO LOCATION AND SPOT FOR RIG UP 19:10 MATT HERRERA OF AOGCC CALLED BACK TO WAIVE WITNESS OF BOPE TESTING ON L -205 22:00 - 00:00 2.00 MOB P PRE REMOVE REAR BOOSTER WHEELS 11/3/2011 00:00 - 02:00 2.00 MOB P PRE CREW CHANGE AND PJSM INSTALL BOPS INTO CELLAR REMOVE FRONT BOOSTER WHEELS 02:00 - 03:00 1.00 MOB P PRE PJSM RAISE THE DERRICK 03:00 - 03:30 0.50 MOB P PRE CLEAR RIG FLOOR AND RU MEET WITH PAD OPERATOR AND ENSURE ADJACENT WELLS ARE SHUT IN BLEED OF GAS LIFT LINES TO 0 PSI FROM 1700 PSI Printed 12/12/2011 11:39:25AM North lirica - ALASKA - BP Page 2 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 05:00 1.50 MOB P PRE PJSM SPOT RIG OVER L -205 WITNESSED BY TOOL & TOWER PUSHER, AND WSL PAD OPPERATOR WAIVED WITNESS 05:00 - 07:30 2.50 MOB P PRE SHIM AND LEVEL RIG -SPOT IN EQUIPMENT, SLOP TANK , BULK FUEL TRAILER - RUN CELLAR CIRCULATION LINES 07:30 - 10:00 2.50 MOB P PRE BRIDAL DOWN - CONT RIGGING UP FLOOR EQUIPMENT - MAKE UP # 2 MUD PUMP - TAKING ON 9.0 PPG BRINE TO THE PITS. 10:00 - 11:00 1.00 RIGU P PRE RIG EVACUATION DRILL - SIMULATE AN OUT OF CONTROL FIRE, CAUSING A RIG EVACUATION. - DRILL WAS CALLED ON THE GAI TRONICS AND THE HARMONY RADIO SYSTEM. - PERSONEL MUSTER IN THE WSL OFFICE, MOCK LEVEL 0 EMERGENCY RESPONSE NOTIFICATIONS WERE MADE. - HEAD COUNT WAS TAKEN BY THE SCS. ALL PERSONEL WERE ACCOUNTED FOR. AAR: - DID A REAL TIME TEST OF THE ESD SYSTEM. COMPLETE RIG SHUT DOWN WAS CONDUCTED. ALL SHUT DOWN SYSTEMS WORKED PERFECTLY - NEW UPS SYSTEM TO POWER THE COMMUNICATION ON THE RIG WORKED PERFECTLY 11:00 - 13:00 2.00 RIGU P PRE PRESSURE TEST SURFACE LINES - TESTED LINES TO 250 PSI LOW & 3500 PSI HIGH FOR 5 CHARTED MIN. BOTH TESTS GOOD. - BREAK DOWN LINES 13:00 - 14:00 1.00 RIGU P PRE RIG EVACUATION WITH NEW CREW - RIG EVAC DUE TO H2S / MAN DOWN DRILL - DRILL WAS CALLED ON THE GAI TRONICS AND THE HARMONY - ALL PERSONEL MUSTERED TO THE PROPER LOCATION, HEAD COUNT WAS TAKEN BY THE SCS. AAR: - NOT EVERYONE ON LOCATION HEARD THE ANNOUNCMENT OVER THE HARMONY RADIO, SO THERE WAS A MISSING DRIVER. - WHEN WE REVIEWED THE DDI PROCEDURE FOR RIG EVACUATION, IT WAS DISCOVERED THAT IT WAS IN NEED OF UPDATING. THE PROCEDURE NEEDED TO INCLUDE THE SCS PART AND SOME CLARIFICATION AROUND THE LOADER OPERATOR ROLE DURING THE DRILL. - CHECK 6 IS GOING TO HELP DDI WITH THE UPDATES NEEDED Printed 12/12/2011 11:39:25AM North ,rica - ALASKA - BP 111 Page 3 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- OOTYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 17:00 3.00 RIGU P DECOMP PU & MU AND PRESSURE TEST DSM LUBRICATOR. - PRESSURE TEST TO 250 PSI LOW AND 3500 PSI HIGH FOR 5 CHARTED MIN EACH. - BOTH TESTS PASSED - PULL 4" H STYLE BPV. - SHOWED 50 PSI ON THE TBG & ZERO ON THE IA WHEN BPV WAS REMOVED. - INSTALLED LOW PRESSURE GAUGE ON THE DSM LUBRICATOR AND SHOWED 38 PSI ON THE TUBING. - BREAK DOWN AND STAND BACK DSM LUBRICATOR - HOOK UP CIRCULATION LINE TO THE SWAB, DUE TO THE FACT THAT THERE IS A DRY HOLE TREE ON THE WELL HEAD, PRESSURE TEST THE LINE LEADING UP TO THE TREE - TESTED LINES TO 250 PSI LOW & 3500 PSI HIGH FOR 5 CHARTED MIN. BOTH TESTS GOOD. - INSTALL A LOW PRESSURE GAUGE ON THE TUBING, CIRCULATION LINE. - TBG PRESSURE= 15 PSI , IA PRESSURE= 0 - CONTACTED THE RWO ENGINEER AND RWO SUPT AS PER PROGRAM TO DISCUSS PLAN FORWARD. REPORTED A LEAK ON ONE OF THE HOSE CONNECTIONS IN THE CELLAR. - REPORTED TO 5700 NON EMERGENCY SPILL. LESS THAN A PINT OF DIESEU BRINE LEAK. CONTACTED RWO SUPT AND ADW SAFETY. 17:00 - 20:30 3.50 KILLW P DECOMP PJSM FOR CIRCULATING OUT THE FREEZE PROTECT WITH RIG CREW AND TRUCK DRIVERS - DISCUSS FLUIDS MANAGEMENT PLAN. - CHECK THE TBG AND IA BEFORE PROCEEDING WITH FREEZE PROTECT CIRC OUT. - TBG = 0 IA =0 - REV CIRC 10 BBLS TO CLEAR TUBING - CIRC 5 BPM AT 300 PSI THROUGH CHOKE TO SLOP TANK FOR 334 BBLS - SHUT DOWN AND MONITOR FOR 30 MIN - TOOK 1 BBLS TO REFILL / CATCH RETURNS AFTER 30 MIN - STATIC LOSS RATE OF 2 BPH - BD LINES AND GRAIN GAS BUSTER 20:30 - 22:00 1.50 WHSUR P DECOMP PJSM - RU DSM LUBRICATOR AND PT - PT TO 250/3500 PSI FOR 5 CHARTED MIN - INSTALL TWC 22:00 - 23:30 1.50 WHSUR P DECOMP PJSM/ PRESSURE TEST TWC: - ROLLING TEST FROM BELOW AT 3.5 BPM AND 500 PSI FOR 10 MIN - LOST 43 BBLS TESTING - PRESSURE TEST FROM ABOVE AT 250/3500 PSI FOR 5 CHARTED MIN 23:30 - 00:00 0.50 WHSUR P DECOMP PJSM / RD DSM LUBRICATOR AND SEND OUT BLOW DOWN LINES Printed 12/12/2011 11:39:25AM North Srica - ALASKA - BP Page 4 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/4/2011 00:00 - 00:30 0.50 KILLW P DECOMP CREW CHANGE, PJSM CONTINUE TO RIG DOWN LUBRICATOR AND BD CIRC LINES 00:30 - 02:00 1.50 WHSUR P DECOMP PJSM, ND TREE ND DRY HOLE TREE AND ADAPTOR FLANGE INSPECT HANGER THREADS WITH 7.5 TURNS FOR MU W / TC I I XO LDS IN = 3.75" OUT 4.75" MONITORING IA TO PRESSURE GAUGE - NO BUILD UP 02:00 - 06:00 4.00 BOPSUR P DECOMP NU BOPS MAKE UP KOOMEY LINES TO BOPS FUNCTION TEST BOPS TO INSURE PROPER CONNECTIONS RU TO TEST BOPS 06:00 - 11:30 5.50 BOPSUR P DECOMP TESTING 13 -5/8" BOPE TEST BOPE PER WELL PLAN, PERMIT TO DRILL, AND AOGCC REGS. -RAMS TESTED TO 250 PSI LOW AND 3500 PSI HIGH. - HYDRILL TESTED TO 250 PSI LOW AND 3,500 PSI HIGH -TEST USING 4 1/2" AND 2 7/8" TEST JOINTS. - PRESSURE TEST FOR 5 CHARTED MIN. -ALL TEST WITNESSED BY BP WSL / DDI TP. -ALL TEST FOLLOW TESTING CRITERIA go(' IN CRT - AK -10 -45 -AOGCC STATE INSPECTOR MATT HERRERA WAIVED STATES RIGHT OF WITNESS. ACCUMULATOR DRAW DOWN TEST: - 2900 PSI DRAW DOWN TO 1850 PSI. - 200 PSI INCREASE IN 17 SECONDS. - FULL PRESSURE IN 74 SECONDS. - 6 N2 BOTTLES @ 2100 PSI. -ANNULAR = 59 SECONDS. -BLIND RAMS = 14 SECONDS. -PIPE RAMS = 6 SECONDS. NO FAILURES 11:30 - 13:30 2.00 PULL P DECOMP PREP WORK FOR PULLING HANGER. - MU JNT OF HT 38 DP WITH TCII XO, LD TO PIPE SHED - PU /MU DUTCH - PU /MU SLB I -WIRE SPOOLER. 13:30 - 16:00 2.50 WHSUR N WAIT DECOMP WAIT ON DSM TO PULL TWC. - CREW BUSY ON 7 ES, SECOND BOX VAN BROKE DOWN SO ONLY ONE CREW AVAILABLE NEW CREW CHANGE OUT DAY. - HELD RIG EVACUATION DRILL WITH AAR: 16:00 - 20:00 4.00 WHSUR P DECOMP R/U DSM LUBRICATOR - PRESSURE TEST 250 #L 3500 #H CHARTED FOR 5 MINUTES EACH -PULL TWC -CHECK FOR NO FLOW -R/D DSM LUBRICATOR / DUTCH RISER -DRAIN STACK Printed 12/12/2011 11:39:25AM North Orioa - ALASKA - BP Page 5 of 24 Operation Summary Report Common Wet Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:00 - 22:00 2.00 PULL P DECOMP M/U LANDING JT TO TUBING HANGER W/ 7.5 TURNS -M /U LANDING JOINT TO TOP DRIVE -FMC BOLDS - PULL HANGER FREE @ 95 K UWT - ATTEMPT TO PULL TBG FREE TO 80% UWT TBG YIELD 230 K - UNABLE TO MOVE TBG - MADE NOTIFICATIONS TO ENGINEER/ DRILLING SUP. - BEGIN TO MAKE NEW PLAN FORWARD 22:00 - 00:00 2.00 PULL N STUC DECOMP LAND HANGER IN TBG SPOOL -RUN IN LD SCREWS -R/D LANDING JOINT -BLOW DOWN TOP DRIVE - NOTIFIED WELLS GROUP E LINE COORDINATOR FOR NEED OF E LINE UNIT TO RE CHEM CUT PACKER. - NO UNIT AVAILABLE UNTIL DAY SHIFT - NOTIFY DSM FOR TWC IN AM - ARRANGE FOR 2 7" QUICK TEST SUBS ONE FROM DSM, ONE FROM SLB 11/5/2011 00:00 - 06:00 6.00 PULL N STUC DECOMP STANDBY FOR DAY SHIFT E -LINE UNIT TO CHEM CUT PACKER AGAIN - WORK ON DDI WORK ORDERS -CLEAN RIG - MONITOR WELL BORE LOSS RATE OF 0.7 BPH AND KEEP FULL WITH 9.0 PPG BRINE 06:00 - 09:30 3.50 PULL N STUC DECOMP RIG WAITING ON PLAN FORWARD - CREWS PERFORMING GENERAL MAINTENANCE & HOUSE KEEPING. - WSL CONFIRMING WITH TOWN OVER PLAN FORWARD TO BRING SWS OUT TO RE -CUT THE PACKER. 09:30 - 10:30 1.00 PULL N STUC DECOMP FMC REP ON LOCATION TO SET THE TWC - RU TEST EQPT -TEST AND TEST TWC, 250 PSI LOW AND 3500 HIGH, 5 CHARTED MIN. BOTH TESTS PASSED CRITERIA - RD TEST EQPT 10:30 - 11:30 1.00 PULL N STUC DECOMP WAITING ON SWS - DSM ON LOCATION TO PULL TWC. - LUBRICATOR IS READY WITH QUICK TEST SUB 11:30 - 19:00 7.50 PULL N STUC DECOMP SWS ON LOCATION - STAGING TRUCKS & TOOLS ON LOCATION - PJSM WITH RIG CREWS AND SLB FOR PROPER RIG UP OF SLB TOOLS - DROPPED OBJECT DISCUSSIONS. - RIGGING UP FULL PCE ON TOP OF THE QUICK TEST SUB & DUTCH RISER, M/U HEAD, WT. BAR & JARS -TEST 250 #L 3500 #H 5 MIN. EA W? DIESEL 19:00 - 20:30 1.50 PULL N STUC DECOMP R/U DSM LUBRICATOR -TEST 250 #L 3500 #H 5 MINUTES EA. CHARTED -PULL TWC -R/D LUBRICATOR Printed 12/12/2011 11:39:25AM North /idea - ALASKA - BP Page 6 of 24 • Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 21:30 1.00 PULL N STUC DECOMP PLSM M/U CCL & CHEMICAL CUTTER ASSEMBLY 21:30 - 22:30 1.00 PULL N STUC DECOMP M/U SLB FULL PRESSURE CONTROL EQ TO QUICK CONNECT -TEST QUICK CONNECT TO 3000 PSI 22:30 - 23:30 1.00 PULL N STUC DECOMP RIH FROM SURFACE TO 50' - UNABLE TO PASS PJSM -POOH BREAK AT QUICK TEST SUB - ADJUST CENTRILIZER SPRINGS -PUT TOOLS BACK IN LUBRICATOR -MU LUBRICATOR AT QUICK TEST SUB -TEST BREAK AT QUICK TEST SUB TO 3000 PSI 23:30 - 00:00 0.50 PULL N STUC DECOMP RIH FROM SURFACE TO 3200' AT 150 FEET PER MIN. 11/6/2011 00:00 - 01:00 2.00 PULL N STUC DECOMP CONTINUE RIH WITH CHEMICAL CUTTER -TIE IN CCL DEPTHS AND LOCATE TOP OF PACKER 4542.15 FT -CHEM CUT PACKER AT 4547.42 FT 01:00 - 02:00 1.00 PULL N STUC DECOMP POH WITH CHEMICAL CUTTER - CUTTER WAS PROPERLY DISCHARGED 02:00 - 03:00 1.00 PULL N STUC DECOMP PJSM -TAG UP WITH CHEM CUTTER - BREAK OFF PCE AT QUICK CONNECT -STAND BACK LUBRICATOR AND TOOLS -PU LANDING JOINT AND SCREW INTO THE TUBING HANGER -BOLDS 03:00 - 03:30 0.50 PULL N STUC DECOMP - ATTEMPT TO PULL CUT PACKER FREE -PULL ON TUBING WORKING UP TO MAX PULL OF 250 K DUE TO SAFETY CONSIDERATIONS OF STRING WEIGHT AND DEPTH SHOULD THE PACKER COME FREE. 03:30 - 07:00 3.50 PULL N STUC DECOMP -RESET TUBING HANGER AND RILDS -PJSM -LD SLB CHEMICAL CUTTING TOOLS -PJSM - MU SLB JET CUTTER TOOLS - STAB IN TOOLS AND MU LUBRICATOR -TEST QUICK CONNECT TO 3000 PSI 07:00 - 09:00 2.00 PULL N STUC DECOMP RIH WITH SLB JET CUT TOOL, ON WIRELINE - RIH 60' PER MIN AVG , CORELATE DEPTHS TO LOGS - SET CUTTER ON DEPTH , MAKE JET CUT @ 4,534' - POOH WITH JET CUT TOOL. - BREAK OUT THE JET CUT TOOLS THROUGH THE MOUSE HOLE DOWN IN THE CELLAR WHERE THE HANDS CAN WALK THEM OUT TO THE SLB TRUCK 09:00 - 10:00 1.00 PULL N STUC DECOMP BREAK OUT AND SET BACK THE SLB PCE - PU AND LAY DOWN THE DUTCH RISER . Printed 12/12/2011 11:39:25AM North /erica - ALASKA - BP Page 7 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:00 - 11:30 1.50 PULL N STUC DECOMP MAKE UP LANDING JOINT TO THE TBG HANGER - 92K PUW WHEN COMPLETION WAS LANDED. - FMC REP IN CELLAR TO BOLDS - PULLED 100K TO 160K OVER, PIPE SHOWED NO MOVEMENT, WORKED THE PIPE UP AND DOWN. - PU AND HELD 170 K OVER, FOR MIN OF 20 MIN. PIPE FINALLY CAME FREE. WAS NO JARRING OR SUDDED DROP IN STRING WEIGHT. INDICATES THE STRING MOST LIKELY IS PACKED OFF WITH SAND. - AFTER PIPE WAS FREE WORKED THE PIPE UP AND DOWN, WITH A PUW -105K, AND SOW -86K 11:30 - 15:00 3.50 PULL P DECOMP PU FIRST JOINT OF TBG TO THE RIG FLOOR , - PUW 105K , SOW 80K - CUT & REMOVE I -WIRE AT THE FIRST CLAMP. - SHUT IN AND CBU WITH 5 BPM AT 130 PSI. - SWS RIGGING DOWN PRESSURE CONTORL EQUIPMENT & TOOLS. 15:00 - 16:30 1.50 PULL P DECOMP CLEAN & CLEAR THE RIG FLOOR. - PU / MU SLB I -WIRE SPOOLING UNIT ON THE RIG FLOOR. - RD LANDING JOINT & HANGER - BLOW DOWN TOP DRIVE AND CHOKE. 16:30 - 17:30 1.00 PULL P DECOMP PJSM FOR PULLING & LAYING DOWN TUBING START TO LD TUBING AND HOLD KICK WHILE TRIPPING DRILL - DRILL WENT WELL WITH ALL HANDS PERFOMING AS PER PROCEDURE 17:30 - 18:00 0.50 PULL P DECOMP POOH WITH 4.5" 12.6#. 13CR VAM TOP TUBING WITH I -WIRE. PULL 12 JOINTS + 2 SPACE OUT PUPS 18:00 - 19:30 1.50 PULL N RREP DECOMP TROUBLE SHOOT PIPE SKATE - PIPE SKATE NEEDED MORE HYDRAULIC FLUID LAY DOWN 3 JOINTS WHILE TROUBLE SHOOTING 19:30 - 00:00 4.50 PULL P DECOMP CONTINUE TO PULL 4.5" COMPLETION FROM JOINT # 15 -PULL COMPLETION TO TOP OF FIRST GAUGE CARRIER - MISSING APROXIMATLEY 80 FEET OF I WIRE FROM ABOVE GAUGE CARRIER. CLAMPS STILL IN PLACE BUT WIRE BROKE OFF IN TWO —40 FT SECTIONS. Printed 12/12/2011 11:39:25AM North /Arica - ALASKA - BP Page 8 of 24 Operation Summary Repot Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/7/2011 00:00 - 01:30 1.50 PULL P DECOMP CONTINUE TO LD 4 -1/2" COMPLETION RECOVERED: - 114 JTS OF 4 -1/2 TUBING - 2 SPACE OUT PUPS - ONE 2.67 FT CUT JOINT WITH 4 -7/8" OD JET CUT FLAIR 4 GLM'S #'S 1 AND 3 HAD HOLES IN THE BACK OF GLM BODY ABOUT 1" x 2.5" - 2 GAUGE CARRIERS - 1 SLIDING SLEEVE - 66 FULL CANNON CLAMPS - 15 HALF CLAMPS - 2 PIECES OF BROKEN OFF I WIRE TOTALING 65 FT OF THE 80 MISSING - I WIRE WAS DRAGGED UP HOLE AND IN THE WELL HEAD WHEN THE COMPLETION WAS OUT OF HOLE. FISHED THE 2 PIECES OUT WITH SMALL HOOK AND ROPE, LD AND MEASURED. I WIRE CAME OFF ABOVE THE FIRST GAUGE CARRIER. CONSULT WITH ODE IN TOWN AND COME UP WITH PLAN FORWARD. 01:30 - 03:00 1.50 PULL P DECOMP RD COMPLETION PULLING EQUIPMENT - CLEAN AND CLEAR RIG FLOOR - RIG UP TO PU DRILL PIPE - RIG DOWN SLB SPOOLER - PUMP OUT STACK AND LOOK FOR REMAINING 15 FEET OF I WIRE - INSTALL WEAR RING WITH 6 -5/8" ID - MU SAFETY JOINT AND LD IN PIPE SHED - PREP FLOOR SAFETY VALVE FOR RIG FLOOR 03:00 - 05:30 2.50 FISH N DFAL DECOMP MU SMALL FISHING BHA WITH ROPE SPEAR, AND PUMP OUT SUB. - TAG WEAR RING, PULL WEAR RING, WEAR RING IS EGGED OUT TO 6 -5/8" INSTEAD OF 7" AND 6 -5/8" BHA IS TAGGING UP. - RECOVERED 2 FT OF WIRE FLOATING AT WELL HEAD - RIH ON 6 DRILLCOLLARS AND 3 JOINTS OF 4" DP - POH AND STAND BACK - NO MORE WIRE RECOVERED 05:30 - 07:00 1.50 PULL C DECOMP INSTALL 9" WEAR RING MU BURN SHOE / OVERSHOT FISHING BHA: - 5 -3/4" SHOE - 4 -1/2" GRAPPLE OVERSHOT - BUMPER SUB - JARS - 6 COLLARS - INTENSIFIER JAR 07:00 - 11:30 4.50 PULL C DECOMP RIH ON 4" HT 38 DP SINGLES FROM THE PIPE SHED - RIH F/ 321' TO 4364' - PUW -110K, SOW -93K SPR'S MP1, 30 SPM- 80 PSI , 4P SPM -140 PSI MP2, 30 SPM -120 , 40 SPMP -180 PSI Printed 12/12/2011 11:39:25AM North l rica -ALASKA - BP Page 9 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 14:00 2.50 PULL C DECOMP WASH DOWN TO TOP OF TUBING STUB @ 4533' -START TO HAVE SETDOWNS IN FILL AT 4474 FT - PUMPING 7 BPM @ 750PSI - PUMP 10 SWEEP TO CLEAN ABOVE 14:00 - 17:30 3.50 PULL C DECOMP CIRCULATE 20 BBL HI VIS SWEEP - PUMPING 7 BPM @ 400 PSI - FIRST SWEEP BROUGHT BACK SIGNIFIGANT AMOUNTS OF FINE FORMATION SAND AND PARAFIN BALLS - PUMP SECOND SWEEP, BROUGHT BACK SIGNIFIGANT AMOUNTS OF FORMATION SANDS AND NO PARAFINS. BASED ON WHAT WE SAW IN THE SECOND SWEEP, WAS DECIDED TO PUMP A THIRD TO GET THE TOP OF THE PACKER GOOD AND CLEAN. PUMPED AT 8 BPM, @ 450 PSI ROTATE OVER STUMP TO DRESS IT OFF- AT 65 RPM 42K TQ 17:30 - 18:30 1.00 PULL C DECOI11P , WASH OVER TOP OF STUMP - SET DOWN 20K LATCH UP ON STUMP - JAR PACKER LOSE - JAR AT50K OVER THEN 65K THEN 80K - PULL HEAVY AND WORK FISH UNTILL OUT OF FILL AT 4474 FT 18:30 - 22:30 4.00 PULL C DECOMP POH FROM 4474' WITH FISH AT SLOWER RATE TO AVOID SWABBING HOLE - MAINTAIN CONTINUES HOLE FILL W/ 9.0 PPG BRINE & SMALL LOSSES - STAND BACK DRILL PIPE AND COLLARS IN DERRICK 22:30 - 00:00 1.50 PULL P DECOMP BREAK OUT FISH FROM BHA - UNABLE TO BACK OUT ANY 4 -1/2" CONNECTIONS - UNABLE TO BACK OFF GRAPPLE 11/8/2011 00:00 - 02:30 2.50 PULL P DECOMP CONTINUE TO LD PACKER AND TAIL PIPE ASSEMBLY - BROKE DOWN WASH PIPE - USE HAND CUTTER TO CUT OFF 4 -1/2" TUBING - BRAKE DOWN FISHING BHA AND LD - LD TUBING TAIL PUPS - RD RIG FLOOR AND CLEAR OUT TOOLS 02:30 - 03:30 1.00 CLEAN P DECOMP - BRING BAKER TOOLS TO RIG FLOOR - PJSM - MU CLEAN OUT BHA: - POLISH MILL WITH TATTLE TAILS - 2 BOOT BASKETS -2 MAGNETS - 7 -5/8" CASING SCRAPER - 6 DRILL COLLARS 03:30 - 06:00 2.50 CLEAN P DECOMP TIH ON 4" HT 38 DRILL PIPE - MAINTAIN CONTINUES HOLE FILL WITH 9.0 PPG BRINE -RIH TO 4580' PUW = 115K, SOW = 93K, ROT. WT = 105K, 25 RPM W/ 3K TQ, 4 BPM W/ 120 PSI - SCRAPE @ 4200' AND 4300' Printed 12/12/2011 11:39:25AM North *rice - ALASKA - BP Page 10 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 07:30 1.50 CLEAN P DECOMP WASH DOWN FROM 4580' TO 4611' - DRESS OFF STUMP @ 25RPM W/ 5K TQ, 4 BPMW /120 PSI - NO -GO @ 4611 07:30 - 09:30 2.00 CLEAN P DECOMP PUMP 2 SWEEPS - 10BPMW /800 PSI - RIH AND TAG @ 4611' W/ NO ROTATION @ 4 BPM W/130 PSI - MONITOR WELL FOR 15 MINUTES - BLOW DOWN TOP DRIVE 09:30 - 12:00 2.50 CLEAN P DECOMP POOH FROM 4611', TIE BACK SLEEVE TO 254' - FLOW CHECK WELL / MONITOR PRIOR TO PULLING BHA THROUGH BOP - L/D SCRAPER - BAKER REP VERIFY MILL TATTLE TALE WAS SUCCESSFUL - L/D DRESS OFF BHA - RECOVER 2 LBS METAL FROM MAGNETS - RECOVER 3 GALLONS FORMATION SAND FROM BOOT BASKET 12:00 - 13:00 1.00 CLEAN P DECOMP CLEAN AND CLEAR RIG FLOOR OF BAKER TOOLS FOR SLB SLICKLINE 20:30 - 23:30 3.00 EVAL P DECOMP PJSM W/ HES - RIH WITH RTTS ON 4 -3/4" DC'S AND 4" DP TO 3880', 90K DWT, 100K UWT 23:30 - 00:00 0.50 EVAL N HMAN DECOMP SET RTTS Cad 3795 ✓ - TEST 250PS1 L/ 3500 PSI HIGH, CHARTED FOR 30 MIN 1 13:00 - 15:30 2.50 EVAL P DECOMP PJSM WITH SLB SLICK LINE - R/U SLB SLICK LINE W/ DUTCH RISER AND STUFFING BOX 15:30 - 20:30 5.00 EVAL P DECOMP RIH W/ SLB LOG TOOLS AND PDS 40 ARM CALIBER - TAG UP @ 4612' WIRELINE DEPTH - LOG UP FROM 4600' TO SURFACE AT 50 FPM - DOWNLOAD DATA FROM PDS MEMORY TOOLS - POSSIBLE CASING HOLES AT 4357' AND 3933' UNCORRECTED DEPTHS - NOTIFIED TOWN ENG. RESULTS - SATISFIED TO PROCEED WITH CASING PRESSURE TEST - R/D SLB SLICK LINE Printed 12/12/2011 11:39:25AM North erica - ALASKA - BP Page 11 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/9/2011 00:00 - 02:30 2.50 EVAL P DECOMP SET RTTS AT 3,882 FT COE TO TEST 7 -5/8" CASING - CLOSE BOP VRB PIPE RAMS - TEST 250 PSI LOW FOR 5 MIN - TEST 3650 PSI FOR 30 MIN - NO NOTICEABLE PRESSURE LOSS IN 30 MIN ON ROLL CHART - RIH TO 3,950 FT COE AND ATTEMPT TEST TO VERIFY CASING HOLE - HELD 250 PSI FOR 5 MIN - HELD PRESSURE UNTIL 1800 PSI THEN BROKE OVER - TERMINATE PRESSURE TEST - CALL WTL JIM WILLINGHAM AND NOTIFY OF RESULTS - EMAIL RESULTS TO WTL AND ODE - ATTACH RESULTS TO OPENWELLS DAILY REPORT -RD TEST EQUIPMENT 02:30 - 05:00 2.50 EVAL P DECOMP - POH FROM 3,950 FT STANDING BACK 4" DP AND 4 -3/4" DC - MAINTAIN HOLE FILL WITH 9.0 PPG BRINE - LOST 3 BBLS ON TRIP OUT OF HOLE - RD RIG FLOOR 05:00 07:00 2.00 TIEBAC P ■- OTHCMP RU DOYON TORQUE TURN SERVICES SC LINER. RUN 4 -1/2 13CR -85, VAM TOP SCAB LI -MU XO'S TO CEMENT HEAD. 07:00 - 08:00 1.00 TIEBAC P OTHCMP PJSM 08:00 - 11:00 3.00 TIEBAC P OTHCMP -MU AND RUN 19 JTS (WITH ONE CENTRALIZER PER JT), 4 1/2" CR -85, VAM TOP, SCAB LINER / PACKER ASSEMBLY. -TOTAL = 946 FT -TQ TURN TO 4440 FT /LB -FILL EVERY 5 JTS. WITH 9.0 PPG BRINE 11:00 - 11:30 0.50 TIEBAC P ■- OTHCMP HANDLING EQUIPMENT. -LOST 3 3 BBLS, 9.0 PPG G BRINE IN IN LAST 12 HRS. 11:30 - 12:00 0.50 TIEBAC P OTHCMP -PJSM AT CREW CHANGE 12:00 - 16:00 4.00 TIEBAC P OTHCMP ► " ► ' _ . : _ u = -ON 4" DP FROM DERRICK - FILL EVERY 3 STANDS. -TAG TIE BACK SLEEVE AT 4611' MD - 100K PUW - 92K SOW - VERIFY NO -GO -SPACE OUT WITH 5' AND 15' DP PUPS. 16:00 - 17:00 1.00 TIEBAC P OTHCMP PJSM -R/U CEMENT HEAD AND CIRCULATING LINES. -PJSM WITH CEMENT CREW. Printed 12/12/2011 11:39:25AM Forth erica - ALASKA - BP Page 12 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 18:30 1.50 TIEBAC P OTHCMP SCHLUMBERGER - PUMPED 5 BBLS H2O - PT LINES TO 4000 PSI -OPEN LOWER TIW -BATCH UP (17:47) AND PUMP 34 BBLS 15.8 # CLASS G, TAIL CEMENT - AT 4 -6 BPM -DROP DART DISPLACE WITH RIG PUMP -3 -5 BPM AT 200 PSI - OBSERVED LINER WIPER PLUG SHEAR AT 1850 PSI. -SLOW PUMPS TO 2 BPM AT 230 PSI AT 440 STOKES AWAY. -563 STROKES PUMPED AT 530 PSI TO BUMP PLUG. -COULD NOT GO DOWN OR UP WITH STRING TO ENGAGE SEALS. - CEMENT IN PLACE AT 18:30 HRS. -SET PACKER WITH 4000 PSI - RELEASE RUNNING TOOL FROM LINER. -TOP OF LINER AT 3,659 FT BOTTOM OF LINER AT —4,605 FT 18:30 - 19:30 1.00 TIEBAC P OTHCMP PICK UP 20 FT AND CIRCULATE OUT +/- 8 BBLS EXCESS CEMENT -5 BPM/ 130 PSI. 19:30 - 00:00 4.50 TIEBAC N DFAL OTHCMP RIG DOWN CEMENT HEAD AND CIRCULATING LINES -LID SINGLE, POOH 2 STANDS M/U TIW VALVE AND HEAD PIN, CLOSE ANNULAR - PRESSURE UP TO 2100 PSI, SHUT IN AND HOLD TILL CEMENT IS AT 70 BC - 70 BC TIME BASED OF 4:32 PUMP TIME FROM CEMENT REPORT - HOLD PRESSURE TILL 23:20 -BLEED OFF AND MONITOR WELL = STATIC 11/10/2011 00:00 - 02:30 2.50 TIEBAC P OTHCMP PJSM, POOH FROM 3410 - LID LINER RUNNING TOOL 02:30 - 03:00 0.50 TIEBAC P OTHCMP CLEAN AND CLEAR RIG FLOOR - WASH OUT BOP STACK @ 14 BPM - BLOW DOWN CIRCULATING LINES 03:00 - 04:30 1.50 WHSUR P OTHCMP PULL CASING PACK OFF THROUGH BOP STACK - PULL FREE WITH 5 K OVER PULL - INSTALL NEW PACK OFF - RILDS 04:30 - 06:00 1.50 WHSUR P OTHCMP PRESSURE TEST IC PACK OFF - 250 PSI LOW FOR 5 MIN - 3500 PSI FOR 30 MIN - ALL TEST RECORDED DIGITALLY ON CRYSTAL CHART ** *06:30 HRS. AOGCC STATE INSPECTOR BOB NOBLE, WAIVED STATES RIGHT OF WITNESS OF WEEKLY BOPE TEST ** 06:00 - 07:00 1.00 TIEBAC P OTHCMP PJSM -P /U AND B/O XO'S FROM CEMENT HEAD -R/U FLOOR FOR 2 7/8" DP 07:00 - 08:30 1.50 TIEBAC P OTHCMP PJSM -P /U AND M/U 3.80" MILL AND (3) 3 1/8" DC'S. Printed 12/12/2011 11:39:25AM North t iCa - ALASKA - BP Page 13 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:30 - 09:30 1.00 TIEBAC P OTHCMP PJSM - PRESSURE TEST CSG AGAINST THE BLIND SHEAR RAMS - 250 PSI LOW FOR 5 CHARTED MIN. -3,500 PSI FOR 30 CHARTED MIN. -FIRST 15 MINUTES = 40 PSI LOSS - SECOND 15 MINUTES = 0 PSI LOSS REPORT TEST RESULTS TO WTL. 09:30 - 12:00 2.50 TIEBAC P OTHCMP PJSM -M /U 3.80 MILL OUT ASSY, 3 1/8 COLLARS, 2 7/8 HT PAC DP 1X1 -RIH TO 680' -CIO RIG CREW 12:00 - 14:30 2.50 TIEBAC P OTHCMP PJSM -CONT. P/U 2 7/8 DP 1X1 TO 1061' MD -M /U 4 3/4 BUMPER SUB AND JAR -CIRC /FLUSH 2 7/8 DP, 3BPM = 280PS1 14:30 - 18:00 3.50 TIEBAC P OTHCMP RIH W /4" DP FROM 1061' TO 3657' MD - PUWT =88K, SOWT =80K, ROTW =82K, TQ =2.5K @ 40RPM -SPR'S #1 PUMP, 23 SPM = 200 PSI, 35 SPM = 400 PSI #2 PUMP, 19 SPM = 150 PSI, 29 SPM = 380 PSI 18:00 - 18:40 0.67 TIEBAC P OTHCMP TAG GREEN CEMENT AT 4472' -DRILL GREEN CEMENT AND SHOE TRACK FROM 4472' TO 4515' MD 18:40 - 00:00 5.33 TIEBAC P OTHCMP -DRILL HARD CEMENT WIPFR PI tJ(; FR()M 4515' TO 4519' MD -WOB = 8 -10K -RPM = 50 -60K - TORQUE = 3.5K -5K - 1-4BPM = 60 -600 PSI 11/11/2011 00:00 - 00:40 0.67 TIEBAC P OTHCMP DRILL OUT LANDING COLLAR AT 4519' - REQUIRED REDUCED PUMP RATE TO 1 BPM AT 60 PSI 00:40 - 05:15 4.58 TIEBAC P OTHCMP -DRILL OUT SHOE TRACK FROM 4520' TO 4552' MD -PUMP FLOW -VIS SWEEPS AS NEEDED -WOB = 6 -8K -50 RPM = 4K TQ - 3 BPM = 660 PSI Printed 12/12/2011 11:39:25AM North Orioa - ALASKA - BP Page 14 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:15 - 11:00 5.75 TIEBAC P OTHCMP DRILL CEMENT - DRILLING FROM 4552' - 4561' MD -DRILL OUT FLOAT COLLAR AT — 4561' MD -DRILL CEMENT FROM 4561' - 4616' MD - OBSERVED VOID FROM 4602' - 4604' MD, POSSIBLY SEAL ASSY CEMENT PORTS -PUMP 20 BBL HI-VIS SWEEP, 5 BPM = 1250 PSI - RECIPROCATED PIPE THROUGH SEAL AREA SMOOTH - UNABLE TO WASH DOWN, ROTATED 5 MORE FEET FROM 4616' - 4621' MD -SEE WEIGHT FALL OFF, WASH DOWN 3' (NO ROTATION) FROM 4621' - 4624' MD -TAG HARD AT 4624' MD 2X WITH 5K WOB - NOTIFY TOWN ENGINEER, ADVISED TO POOH -PUMP 20 BBL HI-VIS SWEEP, 5 BPM = 1250 PSI -PUWT = 106K, SOWT = 90K -NO "SLUGGITS" SEEN AT SHAKER - MONITOR WELL 10 MINUTES = STATIC 11:00 - 12:00 1.00 TIEBAC P OTHCMP PJSM -POOH FROM 4621' TO 1724'MD 12:00 - 16:00 4.00 TIEBAC P OTHCMP PJSM -LAY DOWN 21 JTS 4" DP 1X1 -LAY DOWN 27 JTS 2 7/8 PAC HT, (6) 3 1/8 COLLARS, MILL - NORMAL / LIGHT WEAR ON MILL - MONITOR WELL = STATIC 16:00 - 19:30 3.50 TIEBAC P OTHCMP CLEAR AND CLEAN RIG FLOOR -PULL WEAR RING -FLUSH STACK - INSTALL TEST PLUG -RIG UP TEST EQUIPMENT FOR WEEKLY BOPE TEST 19:30 - 00:00 4.50 TIEBAC P OTHCMP PJSM, TU_TING 13 -5/8" BOPE -TEST BOPE PER WELL PLAN, PERMIT TO DRILL, AND AOGCC REGS. P oe -RAMS TESTED TO 250 PSI LOW AND 3,500 / PSI HIGH. - HYDRILL TESTED TO 250 PSI LOW AND 3,500 PSI HIGH -TEST USING 4 1/2" AND 2 7/8" TEST JOINTS. - PRESSURE TEST FOR 5 CHARTED MIN. -ALL TEST WITNESSED BY BP WSL / DDI TP. -ALL TEST FOLLOW TESTING CRITERIA DOCUMENTED IN CRT - AK -10 -45 -AOGCC STATE INSPECTOR BOB NOBLE WAIVED STATES RIGHT OF WITNESS. HAD 2 FAIL / PASS - ANNULAR REQUIRED CYCLING AND THEN PASSED -HCR KILL REQUIRED CYCLING AND THEN PASSED BOPE TEST CONTINUED ON 11/12/2011 Printed 12/12/2011 11:39:25AM North rica - ALASKA - BP Page 15 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/12/2011 00:00 - 01:30 1.50 TIEBAC P OTHCMP CONTINUE TEST BOPE - TESTING 13 -5/8" BOPE - TEST BOPE PER WELL PLAN, PERMIT TO DRILL, AND AOGCC REGS. - RAMS TESTED TO 250 PSI LOW AND 3,500 PSI HIGH. - HYDRILL TESTED TO 250 PSI LOW AND 3,500 PSI HIGH -TEST USING 4 1/2" AND 2 7/8" TEST JOINTS. - PRESSURE TEST FOR 5 CHARTED MIN. - ALL TEST WITNESSED BY BP WSL / DDI TP. - ALL TEST FOLLOW TESTING CRITERIA DOCUMENTED IN CRT - AK -10 -45 -AOGCC STATE INSPECTOR BOB NOBLE WAIVED STATES RIGHT OF WITNESS. ACCUMULATOR DRAW DOWN TEST: - 2850 PSI DRAW DOWN TO 1950 PSI. - 200 PSI INCREASE IN 16 SECONDS. - FULL PRESSURE IN 53 SECONDS. - 6 N2 BOTTLES @ 2000 PSI. -ANNULAR = 28 SECONDS. -BLIND RAMS = 18 SECONDS. -PIPE RAMS = 12 SECONDS. HAD 2 FAIL / PASS - ANNULAR REQUIRED CYCLING AND THEN PASSED -HCR KILL REQUIRED CYCLING AND THEN PASSED 01:30 - 02:30 1.00 TIEBAC P OTHCMP RIG DOWN TEST EQUIP -PULL TEST PLUG -BLOW DOWN MANIFOLD -M /U 2 7/8 SAFETY VALVE - INSTALL WEAR RING 02:30 - 04:00 1.50 TIEBAC P OTHCMP PJSM, M/U FISHING BHA -M /U WRP RETIEVING TOOL -2 7/8 PAC HT DP - BUMPER SUB AND JARS -(6) 4 3/4 DRILL COLLARS 04:00 - 04:30 0.50 TIEBAC P OTHCMP CHANGE PIPE HANDLEING EQUIPMENT TO 4" 04:30 - 05:30 1.00 TIEBAC P OTHCMP RIH ON 4" DP FROM DERRICK F/1226' MDT/ 3405' MD -PUW 90K, SOW 82K - MONITOR WELL STATIC FOR 10 MIN. 05:30 - 06:30 1.00 TIEBAC P OTHCMP CUT AND SLIP DRILLING LINE. -60 FT. 06:30 - 08:30 2.00 TIEBAC P OTHCMP RIH F/3405' MD T/4447' MD -DID NOT SEE LINER TOP. -PUW 105K, SOW 92K - PRECAUTIONARY WASH DOWN F/ 4447' MD T/ 4619' MD 08:30 - 09:00 0.50 TIEBAC P OTHCMP REV / CIRCULATE 1 BPM / 680 PSI -AND PRESSURE UP GRADUALLY 1/2 BPM / 980 PSI AND CLIMBING. - BLEED OFF PRESSURE, OPEN ANNULAR. -P /U WITH 5K OVER PULL. - CIRCULATE DOWN THE DRILL STRING AT 1 BPM / 140 PSI -T/ 4619' MD. Printed 12/12/2011 11:39:25AM North rica - ALASKA - BP Page 16 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 10:00 1.00 TIEBAC P OTHCMP CBU -5 BPM / 970 PSI -WASH F/ 4619' MD T/ 4626' MD. - REPOSITION MULE SHOE ON BOTTOM SEVERAL TIMES, VERY THE PUMP PRESSURE. - DISCUSS PLAN FORWARD WITH RWO ENGINEER AND RWO SUPERINTENDENT. - MONITOR WELL STATIC FOR 10 MIN. 10:00 - 12:00 2.00 TIEBAC P OTHCMP BLOW DOWN TOP DRIVE -POH F/ 4626' MD TO 1200' MD - MONITOR WELL STATIC FOR 10 MIN. 12:00 - 14:30 2.50 TIEBAC P OTHCMP LID TO PIPE SHED, 32 JTS 2 7/8" PAC DP -L/D RETRIEVING TOOL - OBSERVED MARKS BELIEVE TO BE MADE BY METAL ON MULE SHOE - MONITOR WELL STATIC. 14:30 - 17:00 2.50 TIEBAC N DPRB OTHCMP M/U REVERSE CIRCULATING JUNK BASKET W/ CARBIDE SHOE. -P /U 2 7/8' PAC DP FROM PIPE SHED. 17:00 - 19:30 2.50 TIEBAC N DPRB OTHCMP TIH ON 4" HT 38 DP - MAINTAIN HOLE FILL WITH 9.0 PPG BRINE -GET SLOW PUMP RATES AND PARAMETERS ABOVE LINER TOP AND BELOW - SPR's AT 20 AND 30 SPM -SPR #1 230 PSI AND 450 PSI -SPR #2 200 PSI AND 490 PSI -UP WT = 109 K -DN WT = 94 K 19:30 - 21:15 1.75 TIEBAC N DPRB OTHCMP TAG UP HIGH AT 4619.5 FT - SET DOWN 5 K WITH 5 BPM AT 1270 PSI - UNABLE TO WORK BY - PU ROTATE AT 20 RPM AND WORK/MILL DOWN - STACK OUT AT 4622.5 FT UNABLE TO GET ANY LOWER - SET DOWN WITH 10 K AND NO CHANGE IN PUMP PRESSURE OR TORQUE - DROP BALL AND CIRCULATE DOWN - REVERSE CIRCULATE BASKET FOR 15 MIN AT 5 BPM 21:15 - 00:00 2.75 TIEBAC N DPRB OTHCMP PU OFF BOTTOM 1 STAND AND FLOW CHECK WELL -POH WITH FLOW CHECKS AT TOP OF LINER AND PRIOR TO BHA COMING THROUGH STACK - LEFT BHA 1 STAND IN FOR CREW CHANGE - MAINTAIN HOLE FILL WITH 9.0 PPG BRINE 11/13/2011 00:00 - 02:30 2.50 TIEBAC N DPRB OTHCMP LAY DOWN 2 7/8 DP 1X1 -LAY DOWN REVERSE CIRCULATING JUNK BASKET - LEADING EDGE CARBIDE OF RCJB HEAD IS WORN OFF SMOOTH 3/8" -1 PC SECTION OF METAL FROM CUTTER, PIE SHAPED, 1" X 1 1/2 ", AND SMALL AMOUNT OF METAL SHAVINGS FOUND IN RCJB BASKET -4 3/4 BOOT BASKETS CONTAINED 1/2 GAL OF CEMENT AND SMALL PC'S RUBBER Printed 12/12/2011 11:39:25AM North ricer - ALASKA - BP, Page 17 of 24 . Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 - 03:30 1.00 TIEBAC N DPRB OTHCMP DISCUSS OPTIONS WITH FISHING TOOL SUPERVISOR -CALL TOWN ENGINEER - DECIDE TO RUN WRP RETRIEVAL HEAD PER TOWN ENGINEER & WSL 03:30 - 06:00 2.50 TIEBAC N DPRB OTHCMP PJSM - MAKE UP WRP RETRIEVAL HEAD -PICK UP 2 7/8 DP 1X1 -RIH ON 4" DP FROM DERRICK -T/ 4555' MD - PUW 111K, SOW 94K -5 BPM/ 1040 PSI 06:00 - 08:00 2.00 TIEBAC N DPRB OTHCMP WASH F/ 4555' MD T/ 4624' MD -WORK TO ENGAGE WRP -TAG HARD AT 4624' MD -WORK SEVERAL TIME WITH 3 TURNS -SET 5K DOWN, WORK DOWN TO 4626' MD, SET 10K DOWN. -PU WITH NO OVER PULL / DRAG -WORK UP, BUT CAN NOT GO DOWN PAST SETTING DEPTH. -PU --30 FT, TOTAL LOSSES = 28 BBLS. 08:00 - 09:00 1.00 TIEBAC N DPRB OTHCMP - ATTEMPT TO BULL HEAD (9.0 PPG BRINE) - DOWN THE DP & IA, 1 - 1.5 BPM AT 1200 PSI AND CLIMBING. -DRILL STRING HYDRAULICALLY OUT OF HOLE. -STOP AFTER 14 BBLS WERE BULL HEADED. -DP AND IA ONAVACUUM. -08:15 HRS: CBU THROUGH THE GAS BUSTER AT 5 BPM / 990 PSI, -156 BBLS 9.0 PPG BRINE. - NO GAS OR HYDROCARBONS IN RETURNS. -LOST 20 BBLS KWF DURING CBU. (35 MIN) - MONITOR WELL: 12 -14 BPH LOST RATE WITH PUMPS OFF. - DISCUSSED PLAN FORWARD WITH RWO & CTD SUPERINTENDENT 09:00 - 10:30 1.50 TIEBAC N DPRB OTHCMP PULL OUT OF LINER SLOW F/ 4594" MD T/ 4555' MD. - --12 BPH LOSS RATE WITH CONTINUOUS HOLE FILL. - NO NOTICEABLE CHANGE IN SLOW PUMP RATE FROM EARLIER. -BLOW DOWN CHOKE CIRCULATING LINES AND TOP DRIVE. 10:30 - 12:00 1.50 TIEBAC N DPRB OTHCMP POH F/ 4555' MDT/ 1239' -WITH WRP RETRIEVING TOOL. TOTAL FLUID LOSS TILL NOON = 108 BBLS. Printed 12/12/2011 11:39:25AM North firioa - ALASKA - BP Page 18 of 24 • Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ft 12:00 - 14:00 2.00 TIEBAC N DPRB OTHCMP POH UD F/ 1239' MD -TO PIPE SHED, 32 JTS 2 7/8" PAC DP - SERVICE BOOT BASKETS, RECOVER 3 CUPS MEDAL SHEAVING AND -SMALL RUBBER / CEMENT DEBRIS. -A FEW EXTERNAL MARKS ON MULE SHOE. —14-21 BPH LOSS RATE DISCUSS PLAN FORWARD WITH ADW ENGINEERS, RWO & CTD SUPERINTENDENT AND WTL. 14:00 - 15:00 1.00 TIEBAC N DPRB OTHCMP CLEAN AND CLEAR RIG FLOOR - MONITOR WELL WITH CONTINUOUS HOLE FILL. -16 BPH LOSS RATE. 15:00 - 18:00 3.00 TIEBAC N DPRB OTHCMP PU / MU REVERSE CIRCULATING BASKET WITH CUTRITE DRESSED SHOE -SHOE HAS TATTLE TAILS INSIDE AT 7" AND 12" - PU 32 JOINTS OF 2 -7/8" PAC FROM PIPE SHED 18:00 - 20:00 2.00 TIEBAC N DPRB OTHCMP RIH ON 4" DP TIH TO STAND 35 AND GET SPR'S AT 2 AND 3 BPM #1 190 PSI & 530 PSI #2 200 PSI & 470 PSI DROP BALL FOR REVESE BASKET 5 BPM WITHOUT BALL WAS 1050 PSI WITH BALL WAS 1750 PSI 90KDNWT AND 110KUPWT 20:00 - 21:30 1.50 TIEBAC N DPRB OTHCMP PU STAND 36 AND RIH TO SECOND STAND AT 462.166 - TAG UP AT 4622.0 WITH NO RPM AND 5 BPM - PU AND ROTATE AT 50 RPM 4.5 TO 5 K - WORK DOWN WITH 2 -3 K WOB MILLING OFF -SET DOWN 5 K WOB AT 4623.6 FT ROTATING 50 RPM -SET DN 10 K WOB AND 50 RPM LOSSES START -PU W/ SMALL OVER PULL & NO LOSSES STOP ROTATING AND SET DOWN - SET DN5K- 10K- 15K WOB NO RPM AND NO LOSSES AT 5 BPM - PU SET 40 RPM WITH 4 TO 4.5 K TORQUE - SET DOWN 5 K LOSING RETURNS - SET DN 10 K THEN STOP RPM LOSSES IMPROVE A LITTLE - WOB FALLING OFF SLOW CHASE 10 K WOB STILL 5 BPM -PLUG MAY HAVE BROKE FREE OR DEBRIS BROKE FREE BHA FELL 1 FT TO 4628 FT. CBU WHILE WORKING PIPE UP AND DOWN ABOUT 20 FT NO RPM - SET BACK DOWN AND COMFIRM PLUG IS HOLDING WITH 10 TO 15 K WOB AT 4628 FT Printed 12/12/2011 11:39:25AM • N o r t h- ALASKA - BP Page 19 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:30 - 22:15 0.75 TIEBAC N DPRB OTHCMP POH STANDING BACK 4" DP - FLOW CHECK WELL - ON A VAC W/ 92 BPH LOSS RATE - MAINTAINING HOLE FILL WITH 9.0 PPG BRINE -- AT 22:00 PRUDHOE BAY CALLS PHASE 2 WEATHER LEVEL 2 ROAD COND. 22:15 - 00:00 1.75 TIEBAC N DPRB OTHCMP TAG UP ON STAND 26 PLUS 1 PARTIAL JOINT - DETAINED AT — 4690 FT BIT DEPTH OF BHA - CAN'T GO UP WITH 25 K OVER PULL AND SETTING DOWN 15 K - TRY TO ORIENTATE 180 DEG NO LUCK - ROTATE WITH TOP DRIVE AND PULL UP THROUGH TOL ONE STAND - CONTINUE TO POH - MAINTAIN HOLE FILL WITH 9 PPG BRINE AT ABOUT 40 BPH - FLOW CHECK WELL AGAIN PRIOR TO COLLARS ACROSS STACK 11/14/2011 00:00 - 01:30 1.50 TIEBAC N DPRB OTHCMP PJSM & LD BHA - LD 2 -7/8 PAC DP TO PIPE SHED - BREAK OUT BAKER TOOLS 01:30 - 02:00 0.50 TIEBAC N DPRB OTHCMP - REVESE BASKET HAS TOP SAFETY NUT OF WRP ON BASKET WITH OTHER METAL DEBRIS. STUCK IN THE EXTENDED SHOE OF BASKET IS THE TOP RETRIEVING COLLAR. BOTTOM OF BURN SHOE IS WELL WORN. 02:00 - 03:50 1.83 TIEBAC N DPRB OTHCMP MU OVERSHOT GRAPPLE FISHING BHA 2' GRAPPLE OVERSHOT 32 JOINTS 2 -7/8" PAC BOOT BASKETS BUMPER SUB AND JARS 6 4-3/4" DRILL COLLARS 03:50 - 06:00 2.17 TIEBAC N DPRB OTHCMP TIH ON 4" HT 38 DRILL PIPE - MAINTAIN HOLE FILL WITH 9.0 PPG BRINE - LOSING — 60 BPH OR LESS STOP AT TOL AND GET SPR's -GO IN TO LINER SLOW ENGAGE FISH AT 4628' MD. 06:00 - 06:30 0.50 TIEBAC N DPRB OTHCMP ENGAGE FISH AT 4628' MD -PUW 111K -SOW 92K -TAG FISH AT 4628; MD AND SET 10 -15K DOWN SEVERAL TIMES. -P /U WITH 5 -30K OVERPULL -PUSH DOWN TO 4631' MD. -BREAK CIRC. AT 5 BPM/ 560 PSI -CLOSE ANNULAR AND BULL HEAD 40 BBLS DOWN THE DP & IA. -WITH 9.0 PPG KWF. - ATTEMPT TO CBU AT 5 BPM / 560 PSI AND THE - LOSS RATE INCREASED TO 120 BPH. -DROP BALL -ROD AND OPEN CIRC -SUB. - MAINTAIN 60 BPH HOLE FILL. 06:30 - 07:30 1.00 TIEBAC N DPRB OTHCMP BLOW DOWN CHOKE -PJSM -POH F/ 4628' TO 3607' MD. Printed 12/12/2011 11:39:25AM • North rica - ALASKA BP Page 20 of 24 Operation Summary Report: Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:30 - 14:30 7.00 TIEBAC N DPRB OTHCMP L/D 4" DP AND 2 7/8" HT PAC DP -TO PIPE SHED 1x1. - BREAK DOWN BAKER TOOLS WITH FISH RECOVERED - MAINTAIN CONTINUOUS HOLE FILL AT 60 BPH - 12:30 BRINE LEAK REPORTED TO 5700 SPILL RESPONSE AND ALL REQUIRED NOTIFICATIONS MADE. APROXIMATELY 7 GAL OF 9.0 PPG BRINE LEAKED OUT OF RIG FLOOR DRIP PAN AND OUTSIDE TO GRAVEL BUILD UP. ERT CLEANED UP ALL MATERIAL AND RECYCLED IT INTO THE PITS. 14:30 - 18:00 3.50 TIEBAC N DPRB OTHCMP RIH WITH 14 STANDS FROM DERRICK AND LD 1 X 1 TO PIPE SHED - LD 42 JOINTS 18:00 - 19:00 1.00 TIEBAC P OTHCMP CLEAN AND CLEAR RIG FLOOR OF ANY UNNEEDED TOOLS TO PREP FOR COMPLETION RUNNING - MAINTAINING 60 BPH HOLE FEED WITH 9.0 PPG BRINE - HELD RIG LEADERSHIP WEEKLY SAFETY MEETING WITH DAY & NIGHT WSL's AND DOYON TOOL PUSHERS. ALSO IN ATTENDANCE WAS GREG SARBER AND CHECK 6 19:00 - 00:00 5.00 TIEBAC P OTHCMP RU TO RUM 4.5" VAM TOP COMPLETION WITH I WIRE AND HEAT TRACE. - RU CENTRALIFT SPOOLING UNIT AND ASSOCIATED EQUIPMENT - RU SLB SPOOLER WITH I WIRE - RU DOYON CASING WITH TORQUE TURN WITH COMPENSATOR 11/15/2011 00:00 - 01:00 1.00 TIEBAC P OTHCMP CREW CHANGE, REVIEW RU OF RUNNING EQUIPMENT. - PJSM WITH HALIBURTON, SCHLUMBERGER, DOYON, AND BP PERSONEL 01:00 - 02:00 1.00 TIEBAC P OTHCMP MU TAIL PIPE ASSEMBLY BAKER LOCKING ALL JOINTS: - MULE SHOE - X NIPPLE - 7.625 X 4.5" HES TNT PACKER - TORQUE ALL JOINTS WITH DOYON CASING TORQUE TURN SERVICES Printed 12/12/2011 11:39:25AM North Irica - ALASKA - BP Page 21 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 04:00 2.00 TIEBAC P OTHCMP CONTINUE TO MU COMPLETION ASSEMBLY WITH: - JOINT #1 - X NIPPLE - SLB GAUGE CARRIER #1 - - -- MU AND ATTACH I WIRE TO GAUGE CARRIER - HES SLIDING SLEEVE WITH 2 PLUGGED PORTS FOR I WIRE COMPLETION - SLB GAUGE CARRIER #2 - - -- MU AND ATTACH I WIRE TO GAUGE CARRIER - TEST I WIRE CONNECTIONS AND GAUGES - MU JOINT #2 START HEAT TRACE MID JOINT - MU GLM #1 - CLAMP PER CENTRALIFT REP - TORQUE ALL JOINTS WITH DOYON CASING TORQUE TURN SERVICES - USE JET LUBE SEAL GUARD - MU TO OPTIMUM TORQUE OF 4,440 FT /LBS - STILL MAINTAINING HOLE FEED OF 60 BPH OF 9.0 PPG BRINE 04:00 - 07:00 3.00 TIEBAC P OTHCMP CONTINUE TO MU COMPLETION PER PROGRAM; - CLAMPING PER CENTRILIFT REP - CLAMP EVERY COLLAR FOR I WIRE WITH CANNON CLAMPS - CLAMPING WITH MID JOINT CLAMPS FOR HEAT TRACE - TORQUE ALL JOINTS WITH DOYON CASING TORQUE TURN SERVICES - USE JET LUBE SEAL GUARD - MU TO OPTIMUM TORQUE OF 4,440 FT /LBS - STILL MAINTAINING HOLE FEED OF 60 BPH OF 9.0 PPG BRINE — JOINT# 17 AT 07:00 HRS. 07:00 - 14:00 7.00 TIEBAC N SFAL 1,005.00 OTHCMP HEAT TRACE WAS PINCHED AT 1005' -UD JOINT #17 AND MIU FLOOR SAFETY VALVE. - CENTRILIFT REP CHECKED CONDUCTIVITY, OK. -SENT PICTURES TO CENTRILIFT, ANCHORAGE REP. - DIRECTED TO MAKE FULL SPLICE. - SPLICE TESTED GOOD. WSL AND DRILL SITE #1 OPERATOR DISCUSSED DRILLSITE CONTROL OF WORK AREA. 14:00 - 00:00 10.00 TIEBAC P OTHCMP CONTINUE TO MU / RUN COMPLETION PER PROGRAM. - RUN FROM JOINT #17 TO #23. -L /D BAD PIN ON JOINT #23 AND REPLACE COLLAR ON JOINT #22. - REPLACE JOINT #23 WITH # 90. - REPLACE JOINT #63 WITH #87 - CORRECTIONS MADE IN TUBING SUMMARY. LOSS RATE 42 BPH 9.0# BRINE. Printed 12/12/2011 11:39:25AM North *rica - ALASKA - BP Page 22 of 24 Operation .Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/16/2011 00:00 - 02:00 2.00 TIEBAC P OTHCMP CONTINUE TO MU COMPLETION PER PROGRAM - CLAMPING PER CENTRILIFT REP - CLAMP EVERY COLLAR FOR I WIRE WITH CANNON CLAMPS - CLAMPING WITH MID JOINT CLAMPS FOR HEAT TRACE - TORQUE ALL JOINTS WITH DOYON CASING TORQUE TURN SERVICES - USE JET LUBE SEAL GUARD - MU TO OPTIMUM TORQUE OF 4,440 FT /LBS - MAINTAIN HOLE FILL OF 40 BPH OF 9.0 PPG BRINE -RUN TO JOINT #80 02:00 - 03:30 1.50 TIEBAC P OTHCMP SPACE OUT TIEBACK TO NO -GOAT 15' IN ON JOINT 80 -LAY DOWN JOINTS 80, 79, 78 -PU 3 PUPS: 19.80', 9.85', 2.08' - PU JOINT 78 AND SPACE OUT TO —3666' MD. -MU HANGER TO COMPLETION 03:30 - 04:30 1.00 WHSUR P OTHCMP CHANGEOUT POWER TONGS TO 5 -1/2 ", TO MU HANGER WITH BLAST RINGS - TORQUE TUBING HANGER 04:30 - 08:00 3.50 WHSUR P OTHCMP MU HEAT TRACE LOWER CONNECTOR - INSTALL I -WIRE BULLHEAD FITTINGS. -TEST I -WIRE TO 5000 PSI FOR 10 MIN PER FMC REP 08:00 - 08:30 0.50 WHSUR P OTHCMP LAND HANGER -90K PUW, 87K SOW -FMC REP RILDS -BACK OUT AND LAY DOWN LANDING JOINT 08:30 - 10:00 1.50 WHSUR P OTHCMP PJSM -TEST CIRCULATING LINES TO 3500 PSI FOR 5 MIN - REVERSE 65 BBLS OF 9.0# BRINE AT 3 BPM DOWN THE IA AT 150 PSI - FOLLOW WITH 100 BBLS OF 120 DEG 9.0# INHIBITED BRINE AT 3 BPM AT 110 PSI -GOT RETURNS AFTER 70 TOTAL BBLS PUMPED 10:00 - 11:00 1.00 WHSUR N RREP OTHCMP HIGH LEVEL H2S ALARM SOUNDED -WSL AND DRILLER VERIFIED 0 PPM AT #4 SENSOR (SHAKER) -WELL SECURED AND RIG EVACUATED - ALL PERSONEL GATHERED TO PRIMARY MUSTER AREA -SPOC EVACUATED 3RD PARTY WORKERS OUTSIDE OF CONTROL OF WORK AREA WITH ASSISTANCE FROM PAD OPERATOR - LEVEL 0 NOTIFICATIONS MADE Printed 12/12/2011 11:39:25AM North riCa - ALASKA - BP Page 23 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:00 - 12:00 1.00 WHSUR N RREP OTHCMP RIG CLEARED BY DOYON TP AND ELECTRICIAN AFTER REVIEWING PROCEDURE - ELECTRICIAN VERIFIED THAT ALARM SOUNDED DUE TO MALFUNCTIONING SENSOR - SENSORS HAD BEEN TESTED THAT MORNING BY RIG ELECTRICIAN FOR WEEKLY CALIBRATION HELD AAR WITH ALL PERSONEL LED BY WSL - FINDINGS: DRILLER FAILED TO EVACUATE WITH GAS MONITOR (ONE WAS BROUGHT FROM CAMP AND ANOTHER BORROWED FROM THE PAD OPERATOR TO CLEAR THE RIG), NOT ALL 3RD PARTY WORKERS HAVE HARMONY RADIOS TO HEAR ANNOUNCEMENTS OVER RIG HUB, ALSO SOME 3RD PARTY WORKERS WITH HARMONY RADIOS DIDN'T HEAR THE ANNOUNCEMENT BECAUSE THEY WEREN'T ON THE RIG HUB, ALARM SOUNDING FOR EXTENDED PERIOD OF TIME INTERFERED WITH COMMUNICATION/NOTIFICATIONS. - ACTION: MOTORMAN TO VERIFY TRUCKS TURNED OFF AND PERSONEL NOT INSIDE THE TRUCKS UNAWARE OF EVACUATION TRACTION NUMBER: 3993252 12:00 - 16:00 4.00 WHSUR P OTHCMP RIG UP TO SET AND TEST PACKER -PUMP 40 BBLS TO FILL TUBING -DROP BALL AND ROD -PUMP FLUID TO PRESSURE UP WITH BALL ON SEAT AFTER AIR BUBBLES IN TUBING STOPPED - OBSERVED 2200 PSI INDICATING PACKER SETTING -TEST TUBING TO 3500 PSI FOR 30 MIN, BLEED TO 1500 PSI TEST LOST 40 PSI IN 1ST 15 MIN AND 20 PSI IN 2ND 15 MIN - PRESSURE UP IA TO 3500 PSI FOR 30 MIN TEST TEST LOST 30 PSI IN 1ST 15 MIN AND 10 PSI IN 2ND 15 MIN -ALL TESTED CHARTED - CALLED WTL TO NOTIFY TEST RESULTS -BLEED OFF TUBING PRESSURE - VERIFY DCK VALVE SHEARED BY PUMPING BOTH WAYS 16:00 - 18:00 2.00 BOPSUR P WHDTRE FMC DRY ROD IN AND TEST TWC -TEST FROM ABOVE WITH 250 PSI LOW AND 3000 PSI HIGH FROM ABOVE FOR 5 CHARTED MIN -TEST FROM BELOW TO 2000 PSI FOR 30 CHARTED MIN 18:00 - 19:00 1.00 BOPSUR P WHDTRE BLOW DOWN AND RIG DOWN ALL CIRCULATING LINES -DRAIN STACK -START CLEANING PITS Printed 12/12/2011 11:39:25AM North - ALASKA - BP Page 24 of 24 Operation Summary Report Common Well Name: L -205 AFE No Event Type: WORKOVER (WO) Start Date: 11/1/2011 End Date: X4- 00TYN -E: (3,185,000.00 ) Project: Prudhoe Bay Site: PB L Pad Rig Name /No.: No rig associated Spud Date/Time: 4/27/2008 12:00:00AM Rig Release: Rig Contractor: No rig associated UWI: 500292338870 Active Datum: L -205 @76.10ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 00:00 5.00 BOPSUR P WHDTRE CHANGEOUT LOWER PIPE RAMS 2 -7/8" X 5" VBRS TO 3 -1/2" X 6" VBR FOR NEXT WELL. -OPEN BLIND RAMS, INSPECTION BY DOYON TP - VISUALLY INSPECT ANNULAR - CHANGEOUT TO SHORT BAILS, PULL MOUSE HOLE AND RISER 11/17/2011 00:00 - 01:00 1.00 BOPSUR P WHDTRE ND BOP 01:00 - 03:30 2.50 WHSUR P WHDTRE PREP WELLHEAD -PICK UP AND MAKE UP ADAPTOR FLANGE -TEST HEAT TRACE AND I -WIRE, BOTH TESTED GOOD 03:30 - 05:00 1.50 WHSUR P WHDTRE FMC TEST ADAPTOR VOID FOR A LOW OF 250 PSI AND A HIGH TEST OF 5000 PSI FOR 30 MIN. -TEST RECORDED WITH DIGITAL GUAGE. 05:00 - 06:30 1.50 WHSUR P WHDTRE NU TREE 06:30 - 10:30 4.00 WHSUR P WHDTRE TWC FAILED TO TEST -IA STILL ON A SLIGHT VACUUM -R/U AND TEST DSM LUBRICATOR, 250 / 3500 PSI, 5 MIN. -PULL TWC -TWC FOUND WITH DEBRIS IN VALVE. - SERVICE AND SET TWC -UD LUBRICATOR. 10:30 - 11:00 0.50 WHSUR P WHDTRE TEST DRY HOLE TREE -250 / 5000 PSI FOR 5 CHARTED MIN. GOOD. 11:00 - 12:00 1.00 WHSUR P WHDTRE PU DSM LUBRICATOR -TEST TO 250 LOW, 3500 HIGH FOR 5 CHARTED MIN -PULL TWC -LAY DOWN DSM LUBRICATOR 12:00 - 16:00 4.00 WHSUR P WHDTRE SPOT IN LITTLE RED SERVICES HOT OIL TRUCK FOR FREEZE PROTECT - PRESSURE TEST LINES TO 3600 PSI FOR 5 MIN - REVERSE IN 100 BBLS OF 90 DEG DIESEL DOWN IA @ 2 BPM -ICP = 560 PSI, FCP = 670 PSI -U -TUBE TUBING FOR 1 HOUR -FINAL PRESSURES: TUBING= 50 PSI , IA= 50 PSI, OA= 0 PSI 16:00 - 17:00 1.00 WHSUR P WHDTRE RU DSM LUBRICATOR -TEST TO 250 PSI LOW, 3500 PSI HIGH FOR 5 MIN - INSTALL BPV -RD DSM LUBRICATOR 17:00 - 21:00 4.00 WHSUR P WHDTRE TEST BPV FROM BELOW TO 2000 PSI FOR 30 MIN WITH DEISEL FROM LRS -BLEED BACK 16 BBLS TO LRS 21:00 - 22:00 1.00 WHSUR P WHDTRE RIG DOWN LRS -BLOW DOWN LINES - SECURE DRY HOLE TREE * *RIG RELEASE AT 2200 ** Printed 12/12/2011 11:39:25AM TREE = 4-1/16" OW FLS WELLHEAD = RC JMD DRAFT 0-205 SAFETY NOTES: WELL AN. 70°4)25257' ""• MOTHERBORE ACTUATOR= OW kilE66 (L1, L2, L3, L4 & L5) ABOVE OBd SLOTS IS ALL 13CR (TBG, PUPS, LEMS) *** 7' GAP BETWEEN 4-1/2" TBG & SCAB LNR*** KB. ELEV = 76.1' 1 2196' H4-1/2" HES X NIP, ID = 3.813" 1 KOP = 303' 20" COND, -- 1 1532)1 I GAS LIFT MANDELRS Max Angle = 103° @ 5878' ST ND TVD DEV TYPE VLV LATCH FORT DATE 1290, X-56, Datum NO = WA 3 2349 2174 33 KBG2 DMY BK 0 11/16/11 Datum TVD = 4400. ss ID = 18.770" 2 3220 2904 31 KBG2 DMY BK 0 11/16/11 110-3/4" CSG, 45.5#, L-80 BTC, ID = 9.95" H 3026' = 1 3338 3005 31 KBG2 SO BK 0 12/10/11 14-1/2' GAUGE CARRIER, ID = 3.864" 1 3413' 11111111 3429' H4-1/2" HES SLD SLV, ID = 3.813" I 14-1/2" GUA GE CARRIER, ID = 3.864" H 3453 III ill 3486' 4-1/2" I-ES X NIP, ID = 3.813" Minimum ID: 3.688" @ 4837' ii.mi orli I 3568' H7-5/8" X 4-1/2" HES TNT FKR, v= 3.856" I mom , BKR HOOK HGR ASSY w/ SEALING LEM III IIIII 3591' -14-1/2" HES X NIP, ID = 3.813" 1 4-ia. 'TBG, 12.60, 13CR VAM TOP, 3666' A IIIIII 3620' -14-1/2" HES X NIP ID = 3.813" I .0152 bpf, ID = 3.958" 2 2 mall -14-1/2" MULESHOE, ID = 3.958" 1 41/2" LNR, 12.6#, 13CR-85 VAM TOP, Era= .4. •-:.,, Nom 7-5/8" X 4-1/2" PREMIUM PKR, ID = 3.870" I t..4 VA .0152 bpf, ID = 3.958" 0 e IIC 05 -15-3/4" PORTED SEAL STEM ASSY, ID = 4.750' 1 7-5/8" X 5-1/2" BKR ZXP LW im & TIEBK, ID = 4.970" 4624' 1-1±1/2" IBP (10119/11) - A all ria - Bli - L5 (M)) LEM WIWOW 47° 15-1/2" X 4-1/2' X0, ID = 3.940" H 4624 • Ls (Nb)4-1/2" TAG 40 @ 6522' 46' - 4653' ,., BAKER HOOK HANGER ASSY --I 4636' ' mg cg - °PEW* WIDTH = 3.33" w/ L3 SEALING LEM, 10 = 3.688" 0 4781' H 7-5/8" X 5-1/2" BKR ZXP LTP/TIEBK, ID = 4.970" 1 7-5/8" RA TAG 4726' i ll . •i:,... I13C R LEM 03 LOWER SEAL ASSY, ID = 3.880" H 4813' illi r 4800' H19' SEAL BORE EXTENSION, ID = 4.75" 4819' 1-15-112" X 4-1/2" XO. ID = 3.958" 1 BAKER HOOK HANGER ASSY --I 4837' \ sa OR 131-- - - 1 L4 (OA) LEM VVINIDOW 56° - - EA W/ L2 SEALING LEM, ID = 3.688" L4 (Q) 4-1/2" RA TAG @ 6898 4841' - 4853' v., 17-5/8" RA T AG H 4943 OPENING WIDTH = 3.33" I 4945' H7-518" X 5-1/2" BKR ZXP LTP/TIEBK, ID = 4.970" 1 113CR LEM #2 LOWER SEAL ASSY, ID = 3.90' H 4974' 0 0 I 4964' 1-1_19-1/2 SEAL BORE EXTENSION, ID = 4.75" 1 BAI<ER HOOK HANGER ASSY - 4999' 4983' 5-1/2" X 4-1/2" XO. ID = 3.910" w/ Li SEALING LEM, ID = 3.688" " L3 (OBa) LEM WINDOW 62° •.„,„... ...„ 7-5/8" RA TAG 5084' L3 pa 4-1/2" RA TAG GI 7 1] 357' 5002_ 5015' ;,• •., •• OPIsIG 1 LEM #1 LOWER SEAL ASSY, ID = 3.88" H 5148' ". NI VVDTH = 3.33" V'4 I 5101' H7-5/8" X 5-1/2' BKR ZXP LTP/TIEBK, ID = 4.950" 1 7 5/8" CSG, 29.70, L-80 BTC-M 5582' • gm .0459 bpf. ID = 6.875" 5132' H 19' SEAL BORE EXTENSION, ID = 4.75" 41/2" SOLID LNR, 12.6#, 13CR-80 H 5594' I 5151' -15-1/2" X 4-1/2" X0.10= 3.881E71 VAM TOP, .0152 bpf, ID = 3.958" 1 I PERFORATION SUIVSAARY .-. I REF LOG: SWS LWD VARIOUS DATES L-205 (CBb) ANGLE AT TOP PERF: N/A os 4 "' 1 .. WFD FLOW THRU ALUMINUM BILLET LNR -dt 1 5814' 6 Note: Refer to P 00 % roduction DB for historical perf data (BEHIND SLOTTED LINER) SIZE 1 SPF 1 INTERVAL 1 Opn/Sqz . 1 DATE --- SEE PAGE 2 FOR PERFORATION INFORMATION ■,-; ,,r Li (0Bc) I I I I I . ■•„. 4-1/2" SOLID LNR, 1260, L-80, 8955' . L2 . 5751' H 6» WFD FLOW THRU A LIAANUM BILLET LNR .0152 bpf, ID = 3.958" 08d) ' (BEHIND SLOTTED LINER) DATE REV BY COMMENTS 07108108 N9ES ORIGINAL COMPLETION 11117111 DIG RWO 12/06/11 ?/JM) DRLG DRAFT CORRECTIONS 12/08/11 PJC DRLG DRAFT CORRECTIONS PIREE SWAP (11/21/11) 12/13/11 JLJ/JMD GLV C/O (12/10/11) DATE REV BY CON0vENTS ORION UNIT WELL: L-205, L1, L2, L3, L4 & L5 PERMIT No: 2080530 (540) (580) (550) (560) (570) API No: 50-029-23388-00 (60) (64) (61) (62) (63) SEC 34, T12N, R1 1E, 2361' FSL & 1493' FVVL 12/13/11 TJNO T BP Exploration (Alaska) 0 -205 ill (L1, L2, L3, L4 & L5) I j LI IIP 1 m ....-14 ►_. �.�i ;∎ -►= INb PBTD I 8616' II ►5 ►5 6a 6a 6a _ - - 4 -1 /2" SWELL PKR @ 4704', 5449', 6540' & 7035' , ID = 3.90' /;i 0 0 4636' - 8630', 6.75" L5 (Nb) 4-1/2" LNR, L -80 ST- M..0152 bpf, AD = 3.958" PERFORATION SUMMARY REF LOG: SWS LWD VARIOUS DATES 10A PBTD H 8760' ANGLE AT TOP PERF: WA ; i ® Note: Refer to Roduction DB for historical perf data • f 4 SWELL PKR ft 4925, 5279', 6915' & 7419", ID = 3.90" SIZE SPF ZONE INTERVAL Opn/Sqz DATE " 123-12:1- - - - 4 -1/2' SLTD Nb 5480 - 6522 ' "C 07105/08 4853' - 8763', 6.75" L4 (OA) 4 -1/2' SLTD Nb 7061 - 8574 "C 07/05/08 4-1/2' SLID OA 5320 - 6898 0 06/29/08 ►.t ►�4 4-1/2" LNR, L -80 ET- M..0152 bpf, ID = 3,958" 4 -1/2' SLID OA 7445 - 8709 0 06/29/08 4 -1/2' SLTD OBa 5478 - 7357 0 06/23/08 (OBa PBTD H 8839' I 4 -1/2' SLID OBa 7918 - 8797 0 06/23/08 co 41/2 SLTD OBb 6382 8910 0 06/M/08 .. f • 4f 4 SWELL PKR @ 5045', 5419', 7374' & 7893" , ID = 3.80" 4 -1/2" SLID OBc 5774 - 6098 0 06/10/08 ,// 4 -1/2' SLID OBc 6413 - 8948 0 06/10/08 4999' - 8850', 6.75" L3 (O8a) 4 -1/2" SLTD OBd 5594 - 5827 0 06/16/08 4 -1/7 SLID OBd 5913 - 7501 0 06/16108 4-1/7 LNR, L -80 IBT -M, .0152 bpf. ND = 3.958" 4-1/2' SLID OBd 8020 - 8886 0 07/07/08 OBb PBTD 8951' X 4 SWELL PKR @ 5842', ID = 3.90" "NB PERFS ISOLATED I �: - : .. - - 201 CAB. I /'t . 1 /� 2" LNR. 1-80 IBT- M. .0152 bpf, O = 3.958" I PO ( 4-1/2 " RA TAG H 5847' I OBc PBTD Warn 14-1/2' SWELL PKR, ID = 3.9C H 5865' _I I 4 SWELL PKR fa 6116', ID = 3.90" I4 - 112' RA TAG H 7508' I 5751' - 89916.75" L1 (OBc) I4 -1/2' SWELL PKR, ID = 3.90" H 7526' I 4-1/2' LNR, L -80 BT- M. .0152 bpf, ID = 3.958" I4 -112' SWELL PKR ID = 3.90 H 7996' r - 12 5101' - 8965', 6.75" L2 (O8d) OBd PBTD 8955' ' Bd) 4-1/2" LNR, L -80 T M, .0152 bpf, ID = 3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS ORION WIT 07108108 NWES ORIGINAL COM PLETION WELL: L -205, L1,1.2, L3, L4 & L5 11/17/11 D16 MO PERMIT No: 2080530 (540) (580) (550) (560) (570) 12/06/11 ? /JMO DRLG DRAFT CORRECTIONS AR No: 50.029- 23388 -00 (60) (64) (61) (62) (63) 12/08/11 PJC DRLG DRAFT CORRECTIONS SEC 34, T12N, R11 E, 2361' FSL & 1493' FWL 12/13/11 TA/JMO TREE SWAP (11/21/11) 12/13/11 JLJ /JMD GLV C/O (12/10/11) I BP Exploration (Alaska) • • - ATE Uff SEAN PARNELL, GOVERNOR RASEA ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMIDIISSIOPQ ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 FAX (907) 276 -7542 David Reem Engineering Team Leader 3 BP Exploration (Alaska), Inc. aP? ` 0 P.O. Box 196612 Anchorage, AK 196612 Re: Prudhoe Bay Field, Orion Schrader Bluff Pool, L -205 Sundry Number: 311 -279 Dear Mr. Reem: `A"' �� F'' 7 U? 8 Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. cerely, Daniel T. Seamount, Jr. Chair S DATED this 2 ! day of September, 2011. Encl. STATE OF ALASKA I' II ���/i ALASKA OIPAND GAS CONSERVATION COMMISSI APPLICATION FOR SUNDRY APPROVAL RECEIVED • 20 AAC 25.280 SEP 1 2011 1. Type of Request: ❑ Abandon ❑ Plug for Redrill ❑ Perforate New Pool • ® Repair Well ❑ ChanNe$k 4 l idoCipstr Cons. Commissio 1 ❑ Suspend ❑ Plug Perforations ❑ Perforate - ® Pull Tubing ❑ Time Extension Anchorage ❑ Operations Shutdown ❑ Re -Enter Suspended Well ❑ Stimulate '® Alter Casing ❑ Other 2. Operator Name: 4. Current Well Class: 5. Permit To Drill Number BP Exploration (Alaska) Inc. -® Development ❑ Exploratory 208 -053 3. Address: ❑ Service ❑ Stratigraphic 6. API Number: P.O. Box 196612, Anchorage, Alaska 99519 -6612 50 029 - 23388 - 00 - 00 7. If perforating, closest approach in pool(s) opened by this operation to nearest 8. Well Name and Number: property line where ownership or landownership changes: L -205 - Spacing Exception Required? ❑ Yes o 9. Property Designation: 10. Field / Pool(s): ADL 02824/: Zfa59 Prudhoe Bay Field / Orion Schrader Bluff 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 8953' - 4360' - 8953' - 4360' - 4569' None Casing Length Size MD TVD Burst Collapse Structural Conductor 153' 20" 153' 153' Surface 2997' 10 -3/4" 3026' 2739' 5210 2480 Intermediate 5559' 7 -5/8" 5583' 4466' 6890 4790 Production Liner 3140' 4 - 1/2" 5813' - 8953' 4465' - 4360' 8430 7500 Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): (Below Plug) 6382' - 8910' 4348' - 4361' 4 -1/2 ", 12.6# 13Cr80 4612' Packers and SSSV Type: 7 -5/8" x 4-1/2" Baker Perm Packer Packers and SSSV 4542' / 4012' MD (ft) and TVD (ft): 12. Attachments: 13. Well Class after proposed work: ® Description Summary of Proposal ❑ BOP Sketch ❑ Detailed Operations Program ❑ Exploratory - ® Development El Service 14. Estimated Date for 15. Well Status after proposed work: Commencing Operations: November 15, 2011 . 0- Oil ❑ WINJ ❑ WDSPL ❑ Plugged 16. Verbal Approval: Date: ❑ Gas ❑ GINJ ❑ GSTOR ❑ Abandoned Commission Representative: ❑ WAG ❑ SPLUG ❑ Suspended 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Sean McLaughlin, 564 -4387 Printed Na David R em Title Engineering Team Leader C., Prepared By Name/Number Signature Phone 564 - 5743 Date "i 2/2 ow Terrie Hubble, 564 -4628 Commission Use Only Conditions of approval: Ngtify Commission so that a representative may witness 7 (� , y0 / Sundry Number: 1 ' ❑ Plug Integrity BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance K 3SOO j,S,...- car 1 Other: Cii-,.,) Subsequent Form Required: /0— ! ® II APPROVED BY ,141 1 Approved Bye C O I Date II . Form 10-403 Revs Y ' S S„ 2 2 ! � _`/ N T t MMISSION Submit In Duplicate J `111 111 ///'���l V74 • 0 b P L -205 Scab Liner Well Type: Oil Producer Current Status: This well is completed with 4.5" production tubing tied into a 7-%" x 5 -1/2" Tieback. 7- 5/8" casing set at 5582'. Four laterals are drilled out of the 7 -%" casing at 4636' MD, 4837' MD, 4999' MD and 5582' MD. There are also two laterals drilled out of the 4.5" liner at 5814' MD and 5751' MD. The well has failed a MIT of the IA. A leak detect log indicates a primary casing leak deeper than 4320' Scope of Work: Cut and pull 4 -1/2" tubing and packer. Confirm casing integrity leak with seal stem stabbed into upper ZXP packer. Identify problem area in casing with USIT and caliper log. RIH and cement 4.5" scab liner from 7 -%" x 5 -1/2" Tieback at 4604' MD to 100' above casing leak. Run new string of 4.5" tubing tied into top of 4.5" scab liner. MASP: 1,390 psi / Estimated Start Date: November 15, 2011 Pre Riq Operations S 1 Set WRP 10 -20' above GLM #1 located at 4339' MD. E 2 Pump down IA and perform LDL to locate PC leak. S 3 Pull WRP. Pull GLV in station #1. Caliper 4.5" tubing from TTP to surface. Bail sand from PX plug and pull plug. Pull isolation sleeve from L5 window. Collect SBHP survey. C 4 Set LEM diverter. Set IBP in heel of L5. Pull diverter E 5 Set WRP in pup above L5 LEM at -4630' MD S 6 Dump bail 15' of siuggits on WRP at -4630' MD in Tubing tail • F 7 MIT -OA to 2000 Psi. Circulate tubing through open GLV at 4339' MD with 9.0 ppg brine and freeze protect E 8 Chem cut premier packer. 5.09' from top of packer to top of 1.17' long cut zone. W 9 Check the tubing hanger lock down screws for free movement. Completely back out and check each lock down screw for breakage (check one at a time). PPPOT -T & IC. W 10 Set a BPV in the tubing hanger. F 11 Test BPV from below with 500psi rolling test for 10 min O 12 Remove the well house & flow line. Level the pad as needed for the rig. Riq Operations 1. MIRU Doyon 16. ND tree. NU three preventer BOP stack with 2 -7/8" x 5" VBR pipe rams, blind /shear rams and annular preventer. Pressure test to 250psi low /3500psi high with 2 -7/8" and 4.5" test joints. Circulate out freeze protection fluid and circulate well to clean KWF through the GLM. 2. Pull and LD 4 1/2" tbg and Baker packer 3. RIH with 5 -3/4" polish mills and 7 -%" casing scraper to top of LEM. ' ' . . 4. PU 7-%" RTTS test packer. RIH and test 7 -5/8" casing. PU and set RTTS at -4300' MD and pressure test above and below to confirm leak location. 5. PU -400' of 4.5" Vamtop 12.6# 13CR -85 scab liner and ported seal stem assembly and 7 -5/8" x 4.5" Liner top packer. Fully cement 4.5" scab liner with 15.8 ppg Class G cement (1.17 cuft/sk). 6. Pressure test 4.5" scab liner to 3500 psi 7. PU 3.75" Junk mill and -950' HTPAC drill pipe and drill out of scab. Clean out to above 4.5" WRP. 8. PU WRP retrieveal tool, wash down and retrieve WRP. • j� 5 e 9. Run 4 -1/2" Vamtop 13CR -85 completion with cut to release packer. Displace IA to packer fluid w and set packer 10. Test tubing and IA to 3500 psi. Freeze protect to 2000' TVD 11. Set BPV. ND BOPE. NU and test tree. RDMO. Drilling Engineer: Sean McLaughlin (907)564 -4387 Production Engineer: Mike Warren (907)564 -5952 ' FREE= CM/ aVE-LHEAD = FMC L-205 A NV": ** *MOTHERBORE ABOVE OBd 4CTLATOl2= LEO (I, L2, L3, L4 & L5) ■ ` IS (s 3CR (TBG. PUPS. LEMS) * ** <B. ELEV = 76.1' ° � p �✓ 3F. E = 74.38' {OP= 300' vex Angle = )3° @ 5878' 20" CONDUCTOR 153' J 7 1 2401' H4 -1/2" HES X NIP, ID = 3.813" iitum MD = WA 129 #, X -56, GAS LIFT MANDRELS Datum ?VD = 4400' SS ID = 18.770" ST MD TVD DEV TY FE VLV LATCH PORT DATE i 4 2761 2518 33 KBG2 DMY BK 0 12/13/10 10 -3/4" CSG, 45.5#, K -55 BTC, ID = 9.95" -1 3026' I 3 3915 3504 29 KBG2 DMY BK 0 12/13/10 4-1 /2" GUAGE CARRIER, ID = 3.864" H 4441' 2 4126 3686 33 KBG2 DMY BK 0 09/20/08 m 1 4339 3859 38 KBG2 DMY BK 0 12/13/10 4457' - 14 - /2" BKR CMD SLD SLV, ID = 3.813" / 4-1/2" GAUGE CARRIER, ID = 3.948" H 4481' I 1 M_ I�� 4542' H7-518" x4-h12" BKR PRM PKR, ID = 3.875" Minimum ID: 3.688" @ 4837' B 0 I 4569' - 14 -1/2" HES X NIP, ID = 3.813" BKR HOOK HGR ASSY w/ SEALING LEM I 4569' H 4 -1/z' PX PLUG (12/16/10) I I 4590' - 14 - 1/2" HES X NIP, ID = 3.813" 7 -5/8" X 5 -1/2" BKR ZXP LTP/TIEBK, ID = 4.970" H 4604' _ ' 0 4612' H4-1/2" FLUTTED WLEG, ID = 3.958" 4-1/2" TBG, 12.6 #, 13CR - VAM TOP, -I 4612' .0152 bpf, ID = 3.958" 4624' H5 X 4-1/2" XO, ID = 3.940" 1 BAKER HOOK HANGER ASSY -1 4636' 4 A as m� - ' �' L5 (Nb) LEM WINDOW 47° w! L3 SEALING LEM, ID = 3.688" m L5 ( Nb ) 4 -1/2" RA TAG @ 6522' - - 4640' - 4653' 13-1/2' BKR ISOLATION SLV, ID = 252' (11/30/10) -1 4640' OPENING WIDTH = 3.33" 7 -5/8" RA T AG IH 4726' r F1'4 I 4781' -17 -5/8" X 5 -1/2" BKR ZXP LTP /TIEBK, ID = 4.970" 13CR LEM #3 LOWER SEAL ASSY, ID = 3.880" - ) 4813' I 4800' H 19' SEAL BORE EXTENSION, ID = 4.75" I 4819' H5 X 4-1/2" XO. ID = 3.958" BAKER HOOK HANGER ASSY -1 4837' J - - _ ®_ - - w / L2 SEALING LEM, ID = 3.688" L4 (OA) LEM WINDOW 56° L4 (OA) 4 -1/2" RA TAG @ 6898' 4841' - 4853' 7 -5/8" RA T AG I- { 4943' Hi OPENING WIDTH = 3.33" Ck 0 I 4945' - - 5/8" X 5 -1/2" BKR ZXP LTP /TIEBK, ID = 4.970" I 13CR LEM #2 LOWER SEAL ASSY, ID = 3.90" - I 4974' I 4964' 19 - /Z SEAL BORE EXTENSION, ID = 4.75" BAKER HOOK HANGER ASSY -1 4999' I 4983' -15-1/2" X 4-1/2" XO. ID= 3.910 I w/ L1 SEALING LEM, ID= 3.688" L3 (OBa) LEM WINDOW 62° L3 (OBa) 4 -1/2" RA TAG @ 7357' 5002' - 5015' 7 -5/8" RA TAG -1 5084' k OPENING WIDTH = 3.33" 113CR LEM #1 LOWER SEAL ASSY, ID = 3.88" -1 5148' �\ ■ 5101' -17 -5/8" X 5 -1/2' BKR ZXP LTP /TIEBK, ID = 4.950" :lei 7 5/8" CSG, 29.7 #, L -80 BTC -M H 5582' I\ • I 5132' H19' SEAL BORE EXTENSION, ID = 4.75" 1 .0459 bpf. ID = 6.875" y X 5151' H5 -1/2" X 4-1/2" XO. ID = 3.880" 1 4-1/2' SOLID LNR, 12.6 #, 13CR - 554' I VAM TPERtagglaidAorMkiklY 1 I ._. REF LOG: SINS LWD VARIOUS DATES I I I L -205 (fib) ANGLE AT TOP PERF: N/A ! t.•. Note: Refer to Production DB for historical perf data I I� �`• •," I 5814' 1-16" WFD FLOW THRU ALUMINUM BILLET LNR SIZE 1_ SPF 1 INTERVAL Opn/Sqz 1 DATE l 1.• (BEHIND SLOTTED LINER) SEE PAGE 2 FOR PERFORATION INFORMATION I I I I g L1(OBc) L2 0 I 5751' 116" WFD FLOW THRU ALUMINUM BILLET LNR 4 SOLID LNR, 1 2 6 #, L - 80, - 8955' 1 " - - - - „ , „ „ 0 8 d ) (BEHIND SLOTTED LINER) .01C2 b pf , ID - 3.000" DATE REV BY COMMENTS DATE REV BY COMMENTS ORION UNIT 07108108 N9ES ORIGINAL COMPLETION 10/23/10 RCT /AGR GLV C/O (10/14/10) WELL: L -205, L1, L2, L3, L4 & L5 12/14/08 JLJ /PJC GLV CIO (09/20/08) 11/17/10 SWC/PJC GLV CJO (11/12/10) PERMIT No: 2080530 (540) (550) (560) (570) (580) 12/14/08 ?/ PJC DRLG DRAFT CORRECTIONS 12/08/10 JKD/PJC SET ISOLATION SLEEVE (11/30/10 API No 50- 029 - 23388 -00 (60) (61) (62) (63) (64) 12/17/08 TW /PJC FINAL DRLG DRAFT 12/16/10 GTW /PJC SET PX PLUG (12/16/10) SEC 34, T12N, R11 E, 2361' FSL & 1493' FWL 06/30/09 TW/TLH PERF DATE CORRECTIONS 12/16/10 GTW /PJC GLV C/O (12/13/10) 03/10/10 JKC/PJC SET ISOLATION SLV (002/15/10) BP Exploration (Alaska) L -205 • • (0,2, i [ E 9. III Z� ►Z 8 I Nb PBTD 8616' — — II N PERFORATION SUMMARY \ _ REF LOG: SWS LWD VARIOUS DATES - - 121_ - ~ m 4 SWELL PKR 4704', 5449', 6540' & 7035 ID = 3.90" ANGLE AT TOP PERF: N/A Note: Refer to Production DB for historical perf data -� SIZE SPF ZONE INTERVAL Opn/Sqz DATE _L 4636' - 8630', 6.75" L5 (Nb) III 4-1/2" SLTD Nb 5480 - 6522 "0 07/05/08 4-1/2" LNR. L -80 IBT- M. .0152 bpf. ID = 3.958" 4 -1/2" SLTD Nb 7061 - 8574 " "0 07/05/08 ■ • 4 -1/2" SLTD OA 5320 - 6898 0 06/29/08 10A PBTD I 8750' 4 -1/2" SLTD OA 7445 - 8709 0 06/29/08 4 -1/2" SLTD OBa 5478 - 7357 0 06/23/08 r .... ..-r .. _ ■ ■ ®_ _ _ _ 4-1/2" SLTD OBa 7918 - 8797 0 06/23/08 4-1/2" SWELL PKR a 4925', 5279', 6915' & 7419", ID = 3.90" 4-1/2" SLTD OBb 6382 - 8910 0 06/06/08 - - - -- _® 4-1/2" SLTD OBc 5774 - 6098 0 06/10/08 j 4853' - 8763'. 6.75" 4 -12" SLTD OBc 6413 - 8948 0 06/10/08 1111 4 -12 SLTD OBd 5594 - 5827 0 06/16/08 4-1/2" LNR. L -80 IBT- M..0152 bpf. ID = 3.958" 4-1/2" SLTD OBd 5913 - 7501 0 06/16/08 • \ IOBa PBTD H 8839' 4-1/2" SLTD OBd 8020 - 8886 0 07/07/08 ._. ._. - - - - ® ® 4 /2" SWELL PKR @ 5045', 5419', 7374' & 7893" , ID = 3.90" "'NB PERFS ISOLATED . ---- CRI 4999' - 8850'. 6.75" 3) Ill . � • 4-1/2" LNR, L -80 IBT- M. .0152 bpf. ID = 3.958" I OBb PBTD —{ 8951' 1 X I I 4 - 1 /7' SWELL PKR @ 5842', ID = 3.90" I 110 =� 813' - 8953', 6.75" k �0 „14e; 4 -1 /2” LNR. L -80 IBT -M, .0152 bpf. ID = 3.958" I OBc PBTD H 8988' 14-1/2" RA T A G I-1 5847' I CRI 4 -1/2' SWELL PKR, ID = 3.90" 5865' 41/2" SWELL PKR Q 6116', ID = 3.90" N I4 -1/2" RA TAG H 7508' I 5751'- 8990'. 6.7 _1 (OBc) I4 -1/2' SWELL PKR, ID= 3.90" 7526' 8 4-1/2" LNR, L -80 IBT -M. .0152 bpf, ID= 3.958" I4 -1/2" SWELL PKR, ID = 3.90" I 7996' _, H 5101' - 8965'. 6.75" L2 (OBd) OBd PBTD 8955' r 4-1/2" LNR. L -80 IBT- M. .0152 bpf, ID= 3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS ORION UNIT 07108/08 N9ES ORIGINAL COMPLETION 10/23/10 RCT /AGR GLV C/O (10/14/10) WELL: L -205, L1, L2, L3, L4 & L5 12/14/08 JLJ /PJC GLV C/0 (09/20/08) 11/17/10 SWC/PJC GLV CJO (11/12/10) PERMIT No: 2080530 (540) (550) (560) (570) (580) 12/14/08 ?I PJC DRLG DRAFT CORRECTIONS 12/08/10 JKCYPJC SET ISOLATION SLEEVE (11/30/10 API No: 50- 029 - 23388 -00 (60) (61) (62) (63) (64) 12/17/08 TW /PJC FINAL DRLG DRAFT 12/16/10 GTW /PJC SET PX PLUG (12/16/10) SEC 34, T12N, R11 E, 2361' FSL & 1493' FWL 06/30/09 TW/TLH PERF DATE CORRECTIONS 12/16/10 GTW/PJC GLV C/0 (12/13/10) 03/10/10 JKCIPJC SET ISOLATION SLV (002/15/10) BP Exploration (Alaska) - FREE _ ~ CMV WELLHEAD= FMC L-205 SAFETY N : ***MOTHERBORE ABOVE OBd ACTUA OT R= LEO ( , L2, L3, L4 & L5) SLOTS IS 13CR (TBG. PUPS. LEMS) * ** KB. ELEV = 76.1' BF. ELEV = 74.38' I j ► L11 H4 -1/2" HES X NIP, ID = 3.813" 1 KOP= 300' ∎ GAS LIFT MANDRELS Max A le = � ( 568' 20" CONDUCTOR 153' i i ST MD TVD DEV TYPE VLV LATCH PORT DATE Datum MD = WA 1 29 #, X -56, ► 1500 KBG2 BK 0 Datum TVD = 4400' SS ID = 18.770 ► 3 2500 KBG2 BK 0 110 -3/4" CSG, 45.5#, K -55 BTC, ID = 9.95" H 3026' ► 2 KBG2 BK 0 1 KBG2 BK 0 14-1/2" GUA GE CARRIER, ID = 3.864" 4-1/2" GAUGE CARRIER, ID = 3.948" 1- I m H4-1/2" HES SLD SLV, ID = 3.813" 1 OM I �� I H7 -5/8" X 4 -12" HES TNT PKR, ID = 3.875" 7 -5/8" x 5-1/2" BKR Chrome LTP ©-4200' i 1H4 -1/2" HES X NIP, ID = 3.813" H4 -1/2' HES X NIP, ID = 3.813" Minimum ID: 3.688" @ 4837' s BKR HOOK HGR ASSY w/ SEALING LEM 7 -5/8" X 5 -1/2" BKR ZXP LTP/TIEBK, ID = 4.970" 4604' _ WRP set at 4631' '/ 4-1/2" TBG, 12.6#, 13CR - VAM TOP, - 4612' 0 J ►�� IBP set in L5 lateral .0152 bpf, ID = 3.958" 4624' H5 -12" X 4-1/2" XO, ID = 3.940" 1 BAKER HOOK HANGER ASSY 4636' �� -. - L5 (NI)) LEM WINDOW 47° w/ L3 SEALING LEM, ID= 3.688" ' l j L5 (Nb) 4 -1/2" RA TAG @ 6522' 4640' _4653' 3-12" BKR ISOLATION SLV, ID = 2.52' (11/30/10) -1 4640' OPENING WIDTH = 3.33" 7 -5/8" RA T AG IH 4726' 0 0 I 4781' 1 I7 -5/8" X 5 -1/2" BKR ZXP LTP/TIEBK, ID = 4.970" I 13CR LEM #3 LOWER SEAL ASSY, ID = 3.880" -{ 4813' r 4800 H 19' SEAL BORE EXTENSION, ID = 4.75" IIII 4819' H5 -1/2" X 4-1/2" XO. ID = 3.958" BAKER HOOK HANGER ASSY 4837' - 1 : 3 - ® - - - L4 (OA) LEM WINDOW 56° w/ L2 SEALING LEM, ID= 3.688" 4-1/2" RA TAG @ 6898' L4 (QA) 4841' - 4853' OPENING WIDTH = 3.33" 7 -5/8" RA TAG H 4943' I 4945' - - 5/8" X 5 -1/2" BKR ZXP LTP/TIEBK, ID = 4.970" 1 13CR LEM #2 LOWER SEAL ASSY, ID = 3.90" -1 4974' I m ( 4964' 1 SEAL BORE EXTENSION, ID = 4.75" BAKER HOOK HANGER ASSY -1 4999' I 4983' -1 5 -1 /2" X 4-1/2" XO. ID = 3.910" w/ L1 SEALING LEM, ID = 3.688" L3 (OBa) LEM WINDOW 62° L3 (Qg 4 -1/2" RA TAG © 7357' 5002' - 5015' 7 -5/8" RA TAG --1 5084' _ OPENING WIDTH = 3.33" 13CR LEM #1 LOWER SEAL ASSY, ID = 3.88" 5148' , is 5101' - - 5/8" X 5 -1/2' BKR ZXP LTP/TIEBK, ID = 4.950" 1 I 2•1111 7 5 /8" CSG, 29.7 #, L -80 BTC-M 5582' 1 5132' H19' SEAL BORE EXTENSION, ID = 4.75" 1 .0459 bpf. ID = 6.875" 4-1/2" SOLID LNR, 12.6#, 13CR -80 - --- 5 - 9L - 1 7- 1.-- ------- 594' I 5151' -15 1/2 X 4-1/2" XO. ID = 3.880" VAM T RA 1 fa0*AfiY ( � 1 ._. REF LOG: SWS LWD VARIOUS DATES I 1 I L -205 (OBb) ANGLE AT TOP PERF: N/A I�� � Note: Refer to Production DB for historical perf data I r,� I 581 6" WFD FLOW THRU ALUMINUM BILLET LNR 1. SIZE J SPF I INTERVAL 1 Opn/Sgz I DATE I • 1 (BEHINDSLOTTED LINER) SEE PAGE 2 FOR PERFORATION INFORMATION - I I I I L1(0Bc) 4 SOLID LNR, 12.6 #, L - 80, 8955' , , L2 ( 5751' 6" WFD FLOW THRU AL_ UMINUM BILLET LNR 1 .0152 bpf, ID = 3.958" • Bd) I �(BEHIND SLOTTED LINER) DATE REV BY COMMENTS DATE REV BY COMMENTS ORION UNIT 07/08/08 N9ES ORIGINAL COMPLETION 10/23/10 RCT /AGR GLV C/O (10/14/10) WELL: L -205, L1, L2, L3, L4 & L5 12/14/08 JLJ /PJC GLV C/0 (09/20/08) 11/17/10 SWC/PJC GLV C10 (11/12/10) PERMIT No: 2080530 (540) (550) (560) (570) (580) 12/14/08 ?/ PJC DRLG DRAFT CORRECTIONS 12/08/10 JKD/PJC SET ISOLATION SLEEVE (11/30/10 API No: 50- 029. 23388 -00 (60) (61) (62) (63) (64) 12/17 /08 TW /PJC FINAL DRLG DRAFT 12/16/10 GTW /PJC SET PX PLUG (12/16/10) SEC 34, T12N, R11 E, 2361' FSL & 1493' FWL 06/30/09 TW/TLH PERF DATE CORRECTIONS 12/16/10 GTW /PJC GLV C/0 (12/13/10) 03/10/10 JKCIPJC SET ISOLATION SLV (002/15 /10) BP Exploration (Alaska) ■ ,..1,,,,.• 01/20/11 Sr--- --- NO. 5676 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambelt Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Seth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD 14.43 BGZ7 -00010 a L'ie.�3iAIMINNOl P M 1 NGI-14 AV1H -00052 USIT 1)Z. y 12/23/10 .TVS. af1� 1 L -205 BLPO.00073 MEM LDL ♦ : _ _ 12/21/10 1 yT k3 1 A-42A BL65 -00012 MEM PRODUCTION • - OFILE —ZIP 01/06/11 1 r!T 1 01 -30 8022 -00031 INJECTION PROFILE F Vr1'I l' 12103/10 1 �y7 1 02 -20 BBSK -00040 Ltt ''�bYf 11/19/10 1 k 1 07-23B AY1M -00056 T�TNL+ wV Z 1 K -11A BD88 -00073 MIIK PYi ' ffif/02l�. 1 04-24 AY1 M -00058 CEEINIVjr%Is - >W • ' ' F"n l�a�l i • 11 -12 BCZ2 -00033 RST j • 12/07/10 1 ? a f�/. 1 2.288/0.19 BCRJ -00055 RST ;a r 12/01/10 1 0/ 1 1 S -128 BCZ2.00035 USIT 01/02/11 . (V. , e 1 1 W -220 BG4H -00025 USIT _ 12/27/ 12/27/10 • tr 1 1 S-41A 10AKA0108 OH MWD WD EDIT _IIMEMMINIIIIIIIMIIIIMIIII ' RT•7971 1 S -41AL1 10AKA0108 e' ■r'r r _ • _ ' 1 H -11 BGZ7 -00014 - 12/18/10 1 _ Q , 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Alaska Data & Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambetl Street, Suite 400 900 E. Benson Blvd. Anchorage, AK 99503 -2838 to NFP MAR 1: 4 21111 • -- . 0.,S--- ') G.;< Af :floe'', ',' .; `.''.1 1 ')` o / :1 f7 yK.,t 19 ~~~ ~ ~~~*~ '~- "w' vdr ~~~~~ ~, ~ ,~.. BPXA WELL DATA TRANSMITTAL Enclosed are the materials listed below. If you have any questions, please contact Terrie Hubble at (907) 564-4628 or Priya Maraj at (907) 564-4181. Delivery Contents -205PB1 Core Photos -205PB1 Core Description In2CD's Requested by Howard Okland on 02/04/2010. Sign and Return one copy of this transmittal. Thank You, Terrie Hubble BP Alaska Drilling & Wells Cogy Distribution Priya Maraj, Geologist i3 Well File PDC ~iD~ ~~ l~'3~ ~e: 02/04/2010 ansmittal Number: 001 __ i ~, + T~ l~ ~ ~ i`z~ '~ ~ - .. ~~ ?~ I,~,. ~ y ~ `~~`~ - ~~_ ,:.~ . ~- - ~~b~ ~v BP Alaska Drilling & Wells, MB7-5 900 E. Benson Blvd., P.O. Box 196612 Anchorage, AK 99519-6612 DATA SUBMITTAL COMPLIANCE REPORT 2/3!2010 Permit to Drill 2080530 Well Name/No. PRUDHOE BAY UN GRIN L-205 Operator BP EXPLORATION (ALASK/~ INC API No. 50-029-23388-00-00 MD 8953 TVD 4360 Completion Date 7/8/2008 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional Survey Yes DATAINFORMATgN Types Electric or Other Logs Run: Too much data see 10-407 block 21. Well Log Information: Log/ Electr Data Digital Dataset Log Log Run (data taken from Logs Portion of Master Well Data Maint Interval OH / ly C mcwrnn~ ~•w nuc~ IVdf11C ~` D D ~ Asc ~ ~ Directional Survey ~ j ~D C Asc ~ Directional Survey ~D C Asc ~ Directional Survey pt Directional Survey D D Asc Directional Survey Rpt Directional Survey L~ Sonic ~ CD C Pds 16691 ~onic j~,Cog II D C ~ Pds F~mation Tester 16748" Formation Tester og ~" ED C Pds Formation Tester 16749r/Formation Tester D C Lis 16823 Induction/Resistivity og Induction/Resistivity og Induction/Resistivity vv`.... ......,... ~w .aw~a .awr v.. .w..v.. `.. ..v..........w 0 5165 Open 5/30/2008 PB 1 0 5165 Open 5/30/2008 PB 1 it 0 1115 Open 0 1115 Open ~, 0 8953 Open 6/23/2008 0 8953 Open 6/23/2008 5 Col 50 5090 Case 7/28/2008 USIT, GR, CCL 17-Jun- 2008 50 5090 Case 7/28/2008 USIT, GR, CCL 17-Jun- 2008 5 Col 3970 5510 Case 8/15/2008 MFDT 26-May-2008 3970 5510 Case 8/15/2008 MFDT 26-May-2008 5 Col 3970 5510 Case 8/15/2008 MFDT 26-May-2008 Summary Print 3970 5510 Case 8/15/2008 MFDT 26-May-2008 Summary Print 239 8965 Open 9/2/2008 LIS Veri, ROP, FET, RPM, RAM, DRHO, NPHI 2 Blu 2982 8903 Open 9/2/2008 TVD Vision Service 2 Blu 2982 8903 Open 9/2/2008 MD Vision Service DATA SUBMITTAL COMPLIANCE REPORT 2/3/2010 Permit to Drill 2080530 Well Name/No. PRUDHOE BAY UN ORIN L-205 Operator BP EXPLORATION (ALASIC~ INC API No. 50-029-23388-00-00 iwv aaas i vu 4s u completion Date 7/8/2008 Completion Status ~ 1-OIL Current Status 1-OIL UIC N D- C Lis ~ 17188 Gamma Ray 50 5065 Case LIS Veri, GR, CET , ED C Lis 17189~duction/Resistivity 239 5168 Open PB1 LIS Veri, GR, ROP, FET, RPM, RAM, DRHO, NPHI, PEF ED C Lis 17190 Induction/Resistivity 2930 5132 Open P61 LIS Veri, GR, Tens, CNTC, FCNT, NCNT, CPHI, DRHO, RHOB og See Notes 5 Blu 2905 5164 Open P61 MD Platform Express, AITH, TLD, HGNS, GR, DSST 19-May-2008 Log See Notes 5 Blu 2905 5164 Open P61 TVD Platform ~ Express, AITH, TLD, HGNS, GR, DSST 19-May- 2008 ~ og See Notes 5 Blu 2905 5164 Open P61 MD Ecoscope Service 19-May-2008 og See Notes 5 Blu 2905 5164 Open P61 TVD Ecoscope Service 19-May-2008 pt See Notes 0 0 Case 3/4/2009 Analysis of Bottom Hole ~ L ___ _ _ _ _ Reservoir-Fluid Samples Vell Cores/Samples Information: Name ADDITIONAL INFORMATION Well Cored? ~/ N Chips Received? Y J N Analysis Y / N Received? Sample Interval Set Start Stop Sent Received Number Comments Daily History Received? ((''~~Y / N Formation Tops I.YJ' N • •I Comments: DATA SUBMITTAL COMPLIANCE REPORT 2/312010 Permit to Drill 2080530 Well Name/No. PRUDHOE BAY UN ORIN L-205 Operator 8P EXPLORATION (ALASKIy INC API No. 50-029-23388-00-00 MD 8953 TVD 4360 Completion Date 7/8/2008 Completion Status 1-OIL Current Status 1-OIL UIC N Compliance Reviewed By: Date: • s BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 August 14, 2009 by ~~~~~~ Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB L-Pad Dear Mr. Maunder, OCT d ~ ZOQ9 Alaska Oil & Gas Cons. Gonwnissior~ Anchorage ao$-a53 u-~~ Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB L- Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Anna Dube, at 659-5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator • • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) nmp L pad 8/13/2009 Well Name PTD # API # Initial to of cement Vol. of cement um ed Final top of cement Cement top off date Corrosion inhibitor Corrosion inhibitor/ sealant date ft bbis ft na al L-01 2010720 50029230110000 NA 6 NA 612 6/25/2009 L-02A 2041490 50029230480100 NA 1.4 NA 14.5 6/27/2009 L-03 2051030 50029232690000 NA 2.8 NA 24.7 6/25/2009 L-04 2061200 50029233190000 NA 1.7 NA 15.3 6/25/2009 L-100 1980550 50029228580100 NA 6.2 NA 57.8 6/29/2009 L•101 1980320 50029228650000 NA 3.3 NA 30.6 6/29/2009 L-102 2020360 50029230710000 37' NA Naed To Job? NA L-103 2021390 50029231010000 NA 1.6 NA 10.2 6/26/2009 L-104 2012380 50029230600000 NA 3.5 NA 47.6 5/6/2009 L-105 2020580 50029230750000 NA 1.75 NA 24.65 5/6/2009 L-106 2012230 50029230550000 NA 2.75 NA 28.05 5/6/2009 L-107 2011510 50029230360000 NA 4.8 NA 57.8 5/6/2009 L-108 2021090 50029230900000 NA 1.2 NA 13.8 6/25/2009 L-109 2012010 50029230460000 NA 2.9 NA 32.3 6/27/2009 L-110 2011230 50029230280000 NA 27 NA 316.2 6/29/2009 L-111 2020300 50029230690000 NA 4.7 NA 54.4 6/29/2009 L-112 2022290 50029231290000 NA 5.5 NA 51 6/27/2009 L-114A 2051120 50029230320100 NA 2.5 NA 25.5 6/29/2009 L-115 2011400 50029230350000 NA 0.5 NA 3.4 6/27/2009 L-116 2011160 50029230250000 NA 5 NA 54.4 6/28/2009 L-117 2011670 50029230390100 NA 2.9 NA 28.9 6/27/2009 L-118 2011870 50029230430000 NA 1.4 NA 15.3 6/27/2009 L-119 2020640 50029230770000 NA 2.25 NA 28.9 5/6/2009 L-120 2020060 50029230640000 NA 0.75 NA 6.8 5/5/2009 L-121 A 2030390 50029231380100 NA 2.2 NA 25.5 6/27/2009 L-122 2030510 50029231470000 NA 2 NA 20.4 6/27/2009 L-123 2051940 50029232900000 NA 2 NA 18.7 6/27/2009 L-124 2050430 50029232550000 NA 1.8 NA 17 6/27/2009 L-200 2040010 50029231910000 NA 1.8 NA 13.5 6/26/2009 L-201 2040460 50029232020000 NA 1.75 NA 15.3 5/6/2009 L-202 2041960 50029232290000 NA 2 NA 17 6/26/2009 L-204 2060920 50029233140000 NA 1.5 NA 5.95 5/6/2009 L-205 2080530 50029233880000 NA 1 NA 12.75 7/10/2009 L-210 2031990 50029231870000 NA 3.25 NA 31.4 5/5/2009 L-211 2040290 50029231970000 NA 1.8 NA 17 6/27/2009 L-212 2050300 50029232520000 NA 1.8 NA 17 6/26/2009 L-213 2060530 50029233080000 NA 2 NA 17 6/25/2009 L-214A 2060270 50029232580100 NA 0.25 NA 10.2 5/6/2009 L-215 2051270 50029232740000 NA 1.5 NA 30.6 5/6/2009 L-216 2040650 50029232060000 NA 1.3 NA 11.9 6/26/2009 L-217 2060750 50029233120000 late bbckin conductor NA NA L•218 2051190 50029232720000 NA 1.7 NA 15.3 6/27/2009 L-219 2071480 50029233760000 surface NA NA L-220 2080470 50029233870000 NA 2 NA 20.4 6/28/2009 L-221 2080310 50029233850000 NA 1.7 NA 16.2 6/25/2009 L-250 2051520 50029232810000 NA 3.4 NA 34 6/26/2009 L-50 2051360 50029232770000 NA 1.8 NA 20.4 6/27/2009 L-51 2060590 50029233090000 NA 1.8 NA 17 6/27/2009 "~ Date: 03-03-2009 Transmittal Number: 93043 `` -. BPXA WELL DATA TRANSMITTAL Enclosed are the materials listed below. If you have anv questions, please contact Joe Lastufka at (9071564-4091 Delivery Contents SW Name Date Contractor Descri tion ANALYSIS OF BOTTOMHOLE RESERVOIR-FLUID SAMPLES L-219 06-30-2008 SCH HEAVY OIL PVT STUDY REPORT CD-ROM -ANALYSIS OF BOTTOMHOLE RESERVOIR-FLUID L-219 06-30-2008 SCH SAMPLES HEAVY OIL PVT STUDY REPORT ANALYSIS OF BOTTOMHOLE RESERVOIR-FLUID SAMPLES L-205 07-30-2008 SCH HEAVY OIL PVT STUDY REPORT CD-ROM -ANALYSIS OF BOTTOMHOLE RESERVOIR-FLUID L-205 07-30-2008 SCH SAMPLES HEAVY OIL PVT STUDY REPORT ~ 1'~ Pl~e Sign and Return one copy of this transmittal. Thank You, Joe Lastuflca Petrotechnical Data Center ConocoPhillips Exxon ChevronTexaco DNR AOGCC ~;`zs-CZ`s ~ d `~~a~c~~ ~za 20 ~-rK~s t'a-~3~ .~ Petrotechnical Data Center LR2-1 900 E. Benson Blvd. PO Box 196612 Anchorage, AK 99519-6612 Don Ince Steve Krohn Steve Wright Kristin Dirks Christine Mahnken • Saltmarsh, Arthur C (DOA) L K~~ L VL L From: Hubble, Terrie L [Terrie.Hubble@bp.com] Sent: Thursday, October 02, 2008 11:51 AM To: Saltmarsh, Arthur C (DOA) Subject: PBU L-205 / PTD # 208-053, etc. H i Art, Please reference the following wells (Multilateral Legs): Well Name: PBU L-205 PBU L-205L1 PBU L-205L2 PBU L-205L3 PBU L-205L4 PBU L-205L5 Permit #: 208-053 208-054 208-058 208-055 208-056 208-057 API #: 50-029-23388-00-00 50-029-23388-60-00 50-029-23388-64-00 50-029-23388-61-00 50-029-23388-62-00 50-029-23388-63-00 Top PerF MD: See 10-407's Bottom Perf MD: See 10-407's This well began Production on September 25, 2008 Method of Operations is: Gas Lift Date of Test: 09/30/08 Hours Tested: 4 24-Hour Rate /Oil-Bbl: 2,254 24-Hour Rate !Gas-Mcf: 3,553 24-Hour Rate /Water-Bbl: 12 Test Rate /Oil-Bbl: 376 Test Rate IGas-Mcf: 592 est Rate % Water-Bbl: 2 Choke Size: 53 Gas-Oil Ration: 1,576 10/2/2008 10.~'GG VlG • Flaw Tubing Pressure: 820 Casing Pressure: 1,260 Oil Gravity-AP1: Unavailable 10/2/2008 09/02/08 Scb~~~erger Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Well Job # Lo Descri lion Date BL Color CD L-205 40016965 OH MWD/LWD EDIT 06/04/08 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: N0.4857 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage,AK 99501 BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-283 ~ ATTN: Beth r Received by: 7 Date Delivered: ~ ~-C ~ 3 ~~~,)~ ~ia~;k~, C)il t~ toss ~:,nr1.3. (~~.}mmis;~i~:r? rlnci~c~r<~~t 4bi.13, Na 35 • anaara.Jaetrofer~Nnrs.wan ~ u~rAl~' pit ;~ ~~ r'cu spaFt'r haat~ in Art>,hvra~.:~la;a YYeeic of AtiytSt 37, 20D8 • S1S0 the road Exxon rotes the roost: Taking over offshore kielsrorl ~ro~ect lt't '~ ^. eat , :. Pr .:ia r :. t4ahiam_ .aA at x'n?~ _ is x-_tilcr'ii# ~orpa:i. tk I. ce -:c~:t htni tn:r a . t• r- a~.he hr.~al:dowti of tic~~?ti~ri,,., Real trines t the i+.~^~c?r: I~-izr:s, __,, --. IiJ~ Td1.'.'i? dr; re'Ci3 L,fei; tiT =.,t3L' ~.. .. pnn ~r::e'< pa.~: i~,sn, ri~:h:s. {t Rill £C34?2. r;:ili". ,h'w ~X OIX',."a2iFi = _ d". Ifeh-~;n ;r:xn CChegira.^< C. -a Resttur..-c cet,•n.`h1>; it> 1 positiirl na :a:: 6AFPNY ~ J iila,:^,u. ficld~ ~}g ,~~ ti ~. „a ~ ~~ M -r~ -t ter u 1•a~,e 7 a t l: - =o;•. . ~ ~ an.n ead v a aar~°nt r ui}} he >_, ~ d'mch- a ^'sarncr r „-•nhlc. t;~:.ctmg e ~m ~!? kc;er i^ 1atts :.>fie: r-:~ rnca:;:hc. syl,,~lcn I ....... ~-.a`sc lxa v}41ehi1 ;;° tc c3.?,~u a. t}r',xmia x' 2OT! ea.S~e 20 B [t E A K [ N G N E W S ~ GeoPetm gong for frorRier Spirr)r Ta'.we a:r~s. aiz tr pi~ms rr~ Ftvtttt AP~ier.~: s ~ ~ as 5 ~,a-aPr 2~ [ rJ &affaMt bides tune Caxatn 6Alixsate tas Sa#sttrz •,x :arn^,y~4 L'$ts'+1.E. biiiian it axae rasi'a, ha[ od s~ ~ ~ Alyesta tikes t1e1<t ~ f~ fra e;~ trams-P~a~a:a ~ip~ Einet p+x'Ip 54rlion 9 rues at riaE~R :a»that cr-st: opnratu Ater ruo ~ar ~sasase Aurora Gas restarts its Gcrok Inlet rlril~ag Pam} am Z u~ fxt~},~ ~, No. I drilling rvg in ;"~ ~: :: mochba9ls after iexrral "'~ saixr ytxs of dttniatz ar~u:d ~`~ Alaska`s foul: !inlet. Nou. after rttarh iwU xR'ar5. tree SCOTT OF} y ~, rW,(^NOmt9h'f(1 dtvrkapat+taat ~illiasg im as ctuai of ea. icld> am the wens side of tlae inlet, the n mpany era r:ad 1rre. ~~ 'Wteaecattrie~mic~a}~gstoxittmtel}'S?3mi ~?n ae rerarwtd effort m fivd and de-.vrk~p mate - as lxao~ taskx.° seed Aurxsra Gas Pn~sidrm Sa~..rz Brining shut- ~• ._y ~ a> n rr~ol~al f~+um rss ~- ~s ,. oettainty acsociazed with _ ~" tzieaam with Etssiar Nannal ..;.- t.~::s t'o., the tnvin --c~hcsatt9l AFasl9 ~u a~li- b .Aurora l;ws said at t1ae. ::;,ae of the shsamdtawaa. Amd E~ ;ftiES ~_ - }:aivcx Praaxis Uil Co.. 40 ~h:. CL'Ut OR'O6 L:f:~49QH'8 G1S. ~, ,. ,.. ,,.: i;mA~will~g ro inx~est girt the -vgrk Inlet, -. IlSOIYta Buz ~ I:nsadr li¢ie~daim -- s law~at revol+aut u~ NR~IA Gaff page I9 Governor gn s scion bills 11 :1 ii~~i3C3da :`t.~~351a h~. _fn; *`="-i ,.,. i3 tno;-SP^i3, t'~ l".'or S pr. ~r3S i ? ~ ~~J27i,P ~~ ICON ,... ~ anage afar iegaud the Gil! ~' ~ 5 +..? Gadiee Irxkxxa>xsat ~'~` i s ~-ia3. Gn SaraY i. ,' ~ .ice as TratnCanada. - n~i hilk~ gze, b~ ~~a• ~~sCar~, ahhour~ rt v'*~ .Rk:3:a Lcei: r s ~. ~ .' ". ~ -,,:;esAGlAlicmce ~, dl stssrm earl ~ ,a, ~ ms aht'ad.• spa :luetzct stattiraa d'ana~ :, ,:: ;a+-r ' rixr work is ;hla$a m its ay~ nowara9 a ~ Ala3a, wi t9ar final of ttmr t ptegiugad sac ~.: f dx G(Nl. SARAH PAl}N -_ TQM' aA ."i~ plcting ~ within NatB 5k zo ~srk~x and i'wcs yrars, The. : ofAGL1 prrn- ~ ~ti (urAla~uts from ;s hr_r, tor, of pi '~c r^,at t.'ac stab mh~ pays a ~ of raam- ~gti•_ bausahle txprasc-s alhz the AGIa I~ ~ issauxd: a :x?r v~+x~ 6ins fix an ina'<s_-n- rebate barattsr kxi3anr< did not m~'c ~. ~slamm ad'id J '1 :::_- '~.U~. ~~. _. - ... ~135{:d A} i {. il) ie?P.tw7e31CC a3 9Pf °+e 1? First hexa-lateral in Alaska B[' tarts Sctlrader Bluff ~~iscous oil. drills F-udhce loll with sl'x sidetracks g eec Iw ~car*Aavrm Nrws ~~••~ `Nv txx's acttealry dtxre this lx~Fvre. " -fiaT aas~t ms`s aiec~r t'ec and rtv~x~s err tike keys atril lochs: K !pate tom! ami asAe ar. ~ key wi+MaV rk?; rt has to fit perfeNy. To asalot9: dy Aced sands of the Grim mule-!areal txxltax:h~_v fax c1s°ra3ec ~rootaarr»c caaia- ,v I peal wishia t4ae Sd:tadar Bluff. a ettxkxe- ditiaas laaxr m1y rrcartd3- made ~ ptrfer~+#r in a: taanatiori m Atasta's Nash Skape, crteira.°c'rs at .~~~ w9icri ,ibngasttMS hax^e aasai it to dnrlop BP a sprci~ key So this spring and stuomer ~~ ~ the wide Scleadt7 Binlf fonreriaiae. thew dnlbd L-2115.: the fnst hexa-lateral u~:11 in r1re Stll3, with ci~at mrxahs of pk~mmg, alawsat tnv and a hall mmtlis of dn7tin;. =4.t~4D firs of erta~stly A taexa~lmraal u ear w^tll with sit utarkxrrarnd ~ pipe aatd a na~iy S l9 million price ~, hrazaites--ix. sids~a~ks Fa' L-2t15, this tncans six ~ L-~ ~~_~~l well u sam?ar_Q ttsz rax*st paral{el w~etk, ottr larkrar dte aadK7, each stretching exprnsix~r and r<xrt~9zc wills em~'r dtilkd in hotirxamlly aa~o sea different aal-tarmufg sanzis in ~~x~ ~,. gibe S~radet' Bhaff>Iion- Ah drillers atoamd the world hear vwd set^l~ paGr r8 • Latest Mining News issue inside -- ~ i li PeTtA?Lti\f 'vt:\\S • VdEFft OF AUG05S 3/, 2008 HEXA-LATERAL the crntpany dtilted it without am .pills or injuria~. ~ IS R 71a0U[ ~-~~ So why was L-'_05 the right key? Lt`s at! abtuu the look, sari Rub Tic}~ck, engittotr ing tam lead of the Pmdhoe Bay rotary dridtn¢ group to BP. "The desisaT of the reszrvoir is rcalk what led ro driving the tcchnatlugy ro have rnuhi-laterals." Tirp;rcl: said. "The reser- voir warn'[ devebltcdprior to drat." Tftc Schrader Bluff formation snctcttes across the North Slope, touching pam of Ptvdltoe Bay, Kup~Ttk and Mille Pram, among artier fields. The Orion oil ptwl nrrutirtg ba'iaw the western Itah'of Prtrdhoe Bay is s relatively shallow rcscrvoir, wta:re tow tetnpetsnnes txmtnbuh to the thickntss of the a'NI. Orion is pan of the Wtstem Region Devclopnlert Project, BP's muhi-6itfitm dollar and muhi-year effort to tap the vaa heavy and vise(NtS oil resources west of the Kupand: Rivxr at Rvdhoe Bay. With oi! prices rising globally and oil praducaort d~'clining locally, those tricky- deposits have ttt~cortre a priority fur BP in Alaska thu ~•caatk- Geologists have known about the Sehmdcr Bluff resources of western Prudtrce Bar for decstks, but only bcgart m ptasttc theta in earnest within the last 15 years, acctxding ro Scon Kolsrad, secaor drilling argineerofthe f4txltax Bav nrtary' drilling gnwp for BP. "tnitialty, in the early deveto}xm-rn of the Schradc7 BhT, we tried vertirrl wells and treed honzontaf w"2115, and trottced an hnr~^ase in production tram [tee ttoiizontal wolfs, ami then an even bigger increase in peoduttiain fium the muhi-lateral welly" Kolstad said The Oriw oil pool stxiaut of Schrader Bluff in the westt~n re~iurr of Pnwitrtx Bay is a series of stacked oil-be:uing sactds ATt- aratt~xi by non oil-bearing tuck arxl sh3k. A vtvtical well can cut thnargh alt these sands perpcitditvlarly, but wxarld only taarclt a smtll piece of each one. A tttrri- zontal well nrrmmg dtnxtgh these fiat sands touches ten 6nxs as mach of each resarvo'v, rne:ntut more "ezpasim;' gt dri0ing tome But dri[lmg si3 separate horizontal wells cmrtc's a lot of overlap. By using ox ntauher brae widt separate txaxhcs, a muhi-Lth'csl reduces the strrtace footprhn of the well and uses fCKV K feet of pipe, while dxerrttica{ly incrcasutg pmduetiat. A ttambin:uiun of the horizunttt and vertical options. where a well snakes thmtigh the ground and ~ a0 various oi4 •~ L=2Q5 HEXA-LATERAL Alaska Drilling Niulti-Lateral L-205 ~ Success Story G ~~ 0~~~~ l~ lFexa-Lateral Drilled in Alaska ~' <1`t successful core recovery in the Nb sand +~Excenent Safety and Environmental performance ~_ •~is.v Hirt Wen east •a7a.3 day Well t-ms a taw urettAy +EHorizon[alftrtrtage:21,178' _ +Total drilled ftwtage:24,198' ~eAcquired d40' of conventional core t- act+t s. ATERAt) L-2a. Lt(ODcIATEMti I ~ :. - - a•;! - t-:at: ~a (os~ twrartwy bearing s'arttl~ woukf run the risk of tkwd- the reservoirs with water from stv- tarrulmg fT_"+`rvO+fB. That's why multi-lateral xt~-hrxrlavgv has become the standard fur developing Schrader Bluff santk over dte past fnm years. BPdrilk~d its first tri-latsal N 2003. is ftrst quad-lateral in 21104 sod its first ports-lateral in 2005. The contpnny now has around 15 multi-laterals in opttations in the Schr:tdaT BhdF formation of Pnrdluvc Bad. aRd ilzn first penta{au°ral, do S-_'13:\ well drilled in the Polaris oil pool just east of Orion, showtasni both dtc possibilities and dx chalkt~es of mold-lateal tedmo6 ceY~ An earlier conical well drilled thivugh the sarxis hit aboin Z00 to 250 fm of reser- voir. sod prt>.iuced aivund 200 ro 300 bar- rels ofoil R'r dt.•. The five Iattral wells of 5-Zt3A hit 27.000 feet of nsctvoir, and pnx~rced amoral 1,000 to 1,500 bpd. But at SIO million, 5-213A cast trwrgh- hfour tinter as much as the vrrtiaal well. And bt~cause multi-lateral wells ate drilled from the top down and then axisutictcd from dte ltnttotn-up. s mistake mtytvhcrc along the line wa jeupatdize all dte prcvi- aws work. Thc cYr;ts daxt't end sfter amstnictiort The mtnienws hairizwttal wdL. are t Exult and ~rntly to maintain. Btxausc rach rescrvar ptvduces oil at ditTzrent cares, fati05 end pieSSla'Ca, englnefrs ntYYl the ability ro shut off or isolate the dIS[Inlt branches, as well as isolating spxioos along eat:h branch. 7hc sand-filled tL3t:rvoirs reyuirc rnrro- sim cesistaru materials down hole. To pre- vecu re-entering the wrong will during wttrlcocer and cleaning, pch branch is sptt-ifreally "keyed" to the rtwls drat will bC «sfd Olt 2 To mtnage. tEx multiple streams of fluid coming ro the sunatx all at uxe through a sinKle pipe, rngincers have "fingetprintcd° dte oil from each reservoir. "h detiniteh~ is tesrnnir management intensive atier we leave;' Tirpack said. Naltry SalfAs sptrred Slxtll Because it targ<~ts sands similar to those found at 5-213:\, BP originally intended for L-?OS to be anodter pens-Iatrtal well, targttittg five Orion sands in Schrader Bluff. These sands stretch across the entire (loon oil pool, and funs the basis of the Western Region Lkvelopment Pmject But on top of dtuse (pion sands sit a younger and thinner intrraal rolled the Many sands, wttere the oil is evrn mote visvvw than Orion. Virth tlxrse five Orion sands, all ecai- nomically viable, and tlx; Nancy sand on top proving to be oil bearing, "dtat's how R:t.: h s 5 a.?:t err ~ z ~r b} tlx: 2y a t r gzn..~ - ~ ra .t arL ra t~ -t .=n x~un• ..Tit>r:.. a F. ~~,. ,. t:ir.: ;n ;-. c.. t.u.y ~entxs,ive taet<epts an0 tcm~.hn:=.at RIE, hrv :.u::cc~sti:':%y c, mpitxec{ lug::-~~oi: ati artl q:vs (rsajc<;s at mmctc r*-i=5 on Atatika~s ti: ,^.-:r~iorncnr anu ssi..~:d p r ~:rnri sc lac :<<= u:~ eha - ng r;cp nz-<•dE o7 they ot. unii yam; industN-- we got to six;' Tuck said. L-2115 is only the third well in Prud#tce Bay ro target dx r:~ancy sscttts. '~ The tutttrc of muhi-lateral technology m :~Iaska all depends on the rcst~vous, said Crary Christmrn, BP's director of Alaska thilliug noel wells. The dtillmg team ar BP is planrring a mulri-lateral to target lighter oil in the lvishak fomtstiam in die eacx~rn part of Prudhoe Bav xxt year. In Orion, the team is walking on what thy call "The Palm Tree; 'rotten: the brsxtxs wtwM fan trot in every dira'tiun. The tram is also consitierigs; plans to build a well widt mimxing branclas, exh runttitcg in opposite directietts through dte length of dte sands. Using that option ro its fullest wwiki ttun a potrnaal he~a-lateral into a dodeca-latersl: a well with t2 branches. "Bvrctr tha>ztgh muhi-Lueral tzctatokvt7. tine arntslly been d~pMyed on the sk><x fx a wltik ~-- it's ht~tt dephtyed globally for a w-hik -- if you Ioaik at who's deployed it ro its gresast extent atd its gmaxse varia- rioa, rat ox's aettrally done this before;' Chrisnnatt said abwrt the current worl;kstd at Prudhoe Bar- • GxrrrKt t-rt.~ Lirlji ar 90;-rR}3303 a eiJji.~jrrrmfcum+rexs.rone e` , _ - »r ~ ~, _v , - ~ -- ~ ~ ~..~ ~ u_ ~ ~ ., STATE OF ALASKA ~'S'~~ ,., , ,~ ., , ~.:~ L0~8 ALASKA IL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND k~JG -5 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended zoAACZS.~os zoAACZS.~,o ^ GINJ ^ WINJ ^ WDSPL ^ WAG ^ Other No. of Completions One 1b. Well Class: ®Development ^ Exploratory ^ Service ^ Stratigraphic 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Aband. 7/8/2008 12. Permit to Drill Number 208-053 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 4/27/2008 13. API Number 50-029-23388-00-00 4a. Location of Well (Governmental Section): Surface: 2361' FSL 3786' FEL SEC 7. Date T.D. Reached 6/4/2008 14. Well Name and Number: L-205 , , . 34, T12N, R11E, UM Top of Productive Horizon: 386' FSL, 230' FEL, SEC. 33, T12N, R11 E, UM (OBb) 8. KB (ft above MSL): 76.1' Ground (ft MSL): 47.6' 15. Field /Pool(s): Prudhoe Bay Field / Orion Total Depth: 2117' FNL, 4950' FEL, SEC. 03, T11 N, R11 E, UM 9. Plug Back Depth (MD+TVp) 8953' 4360' Schrader Bluff 4b. Location of Well (State Base Plane Coordinates, NAD 27): Surface: x- 583130 y- 5978082 Zone- ASP4 10. Total Depth (MD+TVD) 8953' 4360' 16. Property Designation: ADL 028241 _ TPI: x- 581433 y_ 5976088 Zone- ASP4 Total Depth: x- 582025 y- 5973591 Zone- ASP4 11. SSSV Depth (MD+TVD) None 17. Land Use Permit: 18. Directional Survey ®Yes ^ No Submit electronic and rinted information er 20 AAC 25.050 19. Water depth, if offshore N/A ft MSL 20. Thickness of Permafrost (TVD): 1900' (Approx.) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): MWD / GR, GR /RES /NEU / AZI Density /Density Caliper PWD, MDT, USIT, MWD / GR /RES / AZI Density /NEU /AIM /PWD 22. CASING, LINER AND CEMENTING RECORD CASING SETTING. DEPTH MD` SETTING DEPTH TYD HOLE AMOUNT WT. PER FT. GRADE TOP BOTTOM TOP .BOTTOM SIZE CEMENTING RECORD PULLED 20" 129# X-56 Surface 153' urfa 153' N//A Driven 10-3/4" 45.5# L-80 29' 3026' 29' 2739' 13-1/2" 684 sx Dee Crete 402 sx Class 'G' 7-5/8" 29.7# L-80 24' 5583' 24' 4466' 9-7/8" 413 sx Class 'G' 4-1/2" 12.6# L-80 5813' 8953' 4465' 4360' 6-3/4" Uncemented Slotted Liner 23. Open to production or inject ion? ®Yes ^ No 24 TusING RECORD If Yes, list each interval open (MD+TVD of Top & Bottom; Pertoration Size and Number): SIZE DEPTH SET MD PACKER SET MD 4-1/2" Slotted Section 4-1/2", 12.6#, 13Cr80 4612' 4542' MD TVD MD TVD 6382' - 8910' 4348' - 4361' 25'.: ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL MD AMOUNT Sc KIND OF MATERIAL USED Freeze Protected w/ 100 Bbls of Diesel 26. PRODUCTION TEST Date First Production: Not on Production Yet Method of Operation (Flowing, Gas Lift, etc.): N/A Date Of Test: HOUfS Tested: PRODUCTION FOR TEST PERIOD OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Flow Tubing PreSS. CaSing PreSS: CALCULATED Z4-HOUR RATE OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API (CORK): 27. CORE DATA Conventional Core(s) Acquired? ®Yes ^ No Sidewal l Cores Ac uired? ^Yes ®No If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 250.071. fiOrV;P!_C i IOiti See attached coring summary. Form 10-407 Revised 02/2007 CONTINUED ON REVERSE SIDE !~ ~IP~- AUf/ A LUUU ~~'/~~ 28. GEOLOGIC MARKERS (LIST ALL FORMATIONS AN ERS ENCOUNTERED): 29. FORMATION TESTS NAME TVD Well Tested . ®Yes ^ No Permafrost Top 29' 29' If yes, list intervals and formations tested, briefly summarizing test results. Attach separate sheets to this form, if needed, and submit Permafrost Base 1847' 1755' detailed test information per 20 AAC 25.071. Ugnu 3130' 2827' MDT was ran, analysis attached. Schrader Bluff NA 4617' 4065' Schrader Bluff NB 4652' 4089' Schrader Bluff NC 4703' 4122' Schrader Bluff NE 4714' 4129' Schrader Bluff NF 4799' 4181' Schrader Bluff OA 4868' 4220' Schrader Bluff OBa 5001' 4287' Schrader Bluff OBb 5096' 4330' Schrader Bluff OBc 5239' 4385' Schrader Bluff OBd 5423' 4437' Schrader Bluff OBd 5944' 4439' Schrader Bluff OBc 6169' 4391' Schrader Bluff OBb 7516' 4345' Schrader Bluff OBb 7642' 4346' Formation at Total Depth (Name): Schrader Bluff OBb (Enteredf~8ase) 6382' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the fore oing is true and correct to the best of my knowledge. p ~8 ~08~~~ Signed Terrie Hubble Q~(, Title Drilling Technologist Date L-205 208-053 Prepared eyName/Number. Terrie Hubble, 564-4628 Well Number Drilling Engineer: Scott Kolstad, 564-5347 Permit No. / A royal No. INSTRUCTIONS GeNew-~: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. IreM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. IreM 4b: TPI (Top of Producing Interval). IreM 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this forrn and in any attachments. IreM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. IreM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). IreM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). IreM 27: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. IreM 29: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 02/2007 Submit Original Only L-205 MDT Data welt: L-205 Date: 5/24/2008 - - - - - .._ Depth Hydrostatic Formation Drawdown On Set Point Planned Actual TVDSS Before After Diff Pressure MWE Mobility (mdlcp) Temp Rnln~aesl Comments P/F Interval I - ! ~oGa n i roan a I na i roan a E 3 1 41 1 ! Fnssl w l nst S.±al t P I Mb1 1 2 4406 4406 .3834.4 1981.6. 1952:2 29:5 1766.8 _ 7.7 _ 92 5 Good Test _ P Mb1 3 4455 4455 ? 3872.0 1993.6 1984.0 9.6 _______„_ __~ Lost Seal P Mb2 4 4479 4479 3889.9 2001.8 2001.8 Lost Seal ; P Mb2 5 .4566 4566 3953:3 2038.0 _ 2038.0 1884.0 .___. ~_ ~ _____ _ 0:1 ~ P MC 6 4586 4588 3968.8 2048.0 2048.0 1805:1 b:9 ____ Good Test P Mc 7 4604 4606 3981.3 __ 2058.0 2034.0 24.0 t80fi:8 48.7 Good Test P MC 8 4663 4663 4019.9 2072.0 2054.0 18.0 1818.4 105.6 ~ ~ Good Test ~ ___ ~ P Nb T 9 4673 4671 4025.2 _ _ mm2077.2 2057.5 19.7 1820.6 ___ 95.1 91.4 P/F Nb 10 4706 4706 4047.8 2086.0 2067.0 19.0 ~_ Lost Seal- low. erm~_ P NC 11 4871 4872 4145.6 2132.5 _ 2133.6 -1.1 1856.4 0.4 91.8 P OA 12 4895 4895 4158.0 2140.8 2123.0 17.8 1853.0 18.7 91.8 _~ P/F OA 13 4910 4911 4166.4 2133.6 2125.6 _ 8.0 1861.3 4.3 92.5 Good Test -had to um it to et a seal P OA 14 4929 4929 4175.8 2152.0 2130.6 21.3 1928.5 1.8 92.6 _ P OA 15 5009 5009 4215.0 2151.0 2149.0 2.0 1'874.0 5:3 92.7 ood test P/F OBa 16 5020 5020 4220.1 2166.3 2152.0 14.3 1879.7 5.9 i 92.9 _^ ood test ~ _~_ P OBa 17 5058 5058. 4237.4 2169.0 2160.0 9.0 1886.2 21.2 93:1 ood test P OBa 18 5102 5102 4256.7 2185.3 2168.0 17.3 1906.0 2.2 _ 93.3 ~ oodtest ~T_ P OBb 19 5122 _ 5122 4265.1 _ 2187.0 _ _ 2173.9 13.1 1903.0 _ 9.2 93.3 slow build acker set P/F OBb 20 5245 5245 4310.9 2197.1 2197.5 -0.4 1970.0 0.1 93.7 _ slow build u use 20 cc retest ~ ~ P _ OBC _ 21 5265 _ 5265 4317.6 2217.0 2200.6 16.4 1916.0 86.0 93.6 oodtest P/F OBc 22 5301 5301 4328:6 2227.2 2 205.0 22.2 93.2 _ _ ~ slow build u __ P OBC _ 23 5430 5430 _ 4362.1 2239.2 _ 2222.9 16.3 1935.0 ~ 4.9 92.8 ood test P OBd 24 5449 5449 I 4366.4 2236.2 2224.8 11.4 1936.7 20.0 ~ 92.8 J ood test _ P OBd 25 Fluid sa ,.. , . _ _._.- 1 5503 mples a- 5265 5503 i 4377.4 ~ ~_..~_. !_ ~ _ . ~ 5265 E 2246.0 m_--_.a 2229.9 _ ~ ......~ l 16.1 , 1941.0 d d __ _... i !-_ ._ ._ . -, _ 97.1 Ttme of Day n _ ~-~ ~_ 2 58 _ 93.0 .. ~. e~...,~... ___ PUMP TIME _ .. ... ~.~ good test SEE COMMENTS ~ END OF TABLE pf Any) i~- .~ _ ~ ~. .,.. _ _ .. _ Recovered 2 x 450 ml _ ~~ _~~ I P/F ~ ; F OBd _ _.. OBc 2 5122 _ ~_ _ _ ~_., 5:16 Interval lu ed i F OBb 2 5122 , 5124 _ . _ _._.._ ~ .__ _._ 11:30 ____ ~ _„_ Inte~lu~~ed _ _____ _. OBb 3 _~_~ 5503 t._.._..._~..~ __._- . . _. 15:08 Recovered 3 x 450 ml F Obd 4 5009 18:20 2 x 450 ml ? F Oea 5 4895 ` 21:41 2 x 450 ml ' F OA 6 4 673 0:55_ 4 x 450 ml _ ~ F _ Nb 2 _ ~~5102 __ 5:03 interval lu ed OBb FLUID SAMPLE COMMENTS: Page 1 Spl De th Sample Description L-205 PB1 Core Descriptions Core #1: 4475' to 4503' MD; Cut = 28 ft, Recovered = 23 ft 4475' - 4482' SH: Itgy, frm-v frm, sl slty w/ occ slt strng„ occ to f gr snd strng w/ brn stn, ptchy dul yel gld flor w/ even bri yel flor on snd 448Y~ _ 4498 SS: to-clr, f-m sz grs, tr c sz grs, , v fri, sb ang, mod srtd, some cht grs, occ dk min grs pos sh pieces, sl cly fled por, f intgr por, por fled w/ HO, even m-bri yel gld flor Core #2: 4503' to 4535' MD; Cut = 32 ft, Recovered = 32.5 ft 4503' -4508' SH: grey, very firm, slightly silty, tan fine grained sand stirnger (slightly silty) at 4505' sample, patchy moderate gold fluorescence with even bright yellow flourescence on 4511' - 4514' SS: clear to transluscent quartz, fine to medium grains, friable, slightly silty (stringer), subangular to subrounded, trace chert, fair estimated porosity, even moderately 4517' - 4535' SH: re ve firm sli h sil occasional siltier strip ers s o dull oran a fluorescence Core #3: 4535' to 4595' MD; Cut = 60 ft, Recovered = 56.8 ft 4537' - 4546' SH: grey, soft to firm, Blighty slty occasional silty/sandy tan stringers, spotty dull orange fluorescence, moderate yellow-gold in silty/sandy stringers SS: Nb sand, unconsolidated, clear to transluscent quartz, some chert, predominantly medium-grained, some fine and coarse grains, subangular, well sorted, free oil, 4549' - 4561' amber to brown stain, even moderate gold fluorescence ' SH: grey, firm to very firm, slighty silty, occasional siltier stringers, and some tan sandy stringers interspersed, spotty dull orange fluorescence (shale) with even 4564' - 4592 moderate old fluorescence in the sil and sand strip ers Core #4: 4595' to 4675' MD; Cut = 80 ft, Recovered = 79.9 ft 4595' - 4598' SS: to-clr, of -f occ m sz grs, sl frm to fri, sb ang, p-mod srtd, some cht grs, slty to clyey, cly-slt fled por, p intgr por, even m-bri yel gld flor 4598' -4600' SLTST: Itgy-wh, v frm to hd, pred slt sz qtz grs, grdg to of sz SS, vw cmtd, abnt wh cly in intersticies, n vis por, ptchy-spry mlky yel flor 4600' -4617' SLTST: m brn-m gy, sl frm to sft, mod frm ip, v clyey grdg to v slry SH, of snd grs ip, dul yel gld flor 4617' - 4648' SH: Itgy, frm-v frm, slty, blky, no flor 4648' -4651' SLTST: grybrn, v frm, Gyey, occ slt sz qtz grs grdg to of ss, n vis to vp intgr por, ptchy mod bri mlky yel flor. 4651' -4667 SH: Itgy, hd, sl slty ip, n flor 4667' - 4670' Sndy SLTST: brn, frm to v frm, clyey, abnt of-f sz snd grdg to v slty ss, n vis por, even bri yel gld flor 4670' - 4674.9' SH: Itgy, hd, sl slty ip, n flor Core #5: 4675' to 4735' MD; Cut = 60 ft, Recovered = 60.0 ft 4675' -4677 SH: Itgy, hd, sl slty ip, n flor 4677' -4680' SLTST: Itbrn, v frm, occ slt sz qtz grs, swelling clys, rr glau grs, occ of snd strngs & blebs, spry to ptchy mod bri yel gld flor 4680' -4688' CLY: Itgy-wh, wxy, slty ip, occ slt-vf snd inclusions or lams, swelling clys, spry-ptchy mod bri yel gld flor. 4688' - 4713' SS: It-m brn, pred f occ of qtz grs, sb ang, pred fri to uncons, occ pieces frmly cmtd w/ cly, mod-w srtd, occ It-m gy grs some It gygn grs many of which appear to be sh ptgs, rr bri gn grs poss glau, pred g to vg intgr por, por fled w/It-m brn HO, even dul yel gld flor w/some ptchy med yel gld flor. 4713' - 4724' SS: It-m brn, pred of occ f sz qtz grs, sb ang, fri - sl frm, occ clyey to slty, mod-w srtd, occ It-m gy grs some It gygn grs many of which appear to be sh ptgs, rr gn grs poss glau, f-g intgr por, occ cly fled por, even It brn stn, occ med brn HO, even med yel gld flor. 4724' - 4728' SS: as above, bcmg more clyey, even mod bri yel flor 4728' - 47301' CLY: Itgy-wh, wxy, slty ip, occ slt-vf snd strngs w/ Itbrn stn, swelling clys, pred n flor, occ spry dul yel gld flor. 4731' - 4735' CLY: Itgy-wh, wxy, slty ip, occ slt-vf snd inclusions or lams, swelling clys, n flor. Core #6: 4735' to 4795' MD; Cut = 60 ft, Recovered = 60.6 ft 4735' - 4750' CLYST: Itgy, frm-v frm, swelling clys, rr blebs w/ slt-vf snd, tr blk sh ptgs -size of m grs, v sl calc, n flor. 4750' - 4757' CLYST: as above w/occ slt-vfsnd lams. 4757' - 4760' SLTST: Itgy-clr, frm - v frm, occ hd, pred slt sz qtz grs grdg to of ss, clyey, Abnt SS strng w/ of-m sz qtz grs, occ m to v c, some rd peb sz grs, sbang-sbrd, p srtd, 10% glau grs, n vis por. 4760' - 4767' SS: tn-Itbrn, Gr of to f sz grs, fri almost uncons, sbang, mod-w srtd, rr glau grs, sl clyey, It brn stn - o saturated core, vg intgr por w/ some Gy fled por, even dul to mod bri yel gld flor 4767' - 4770' SS: as atwve, bcmg more clyey, even dul-mod bri yel gld flor 4770' - 4772' SS: clr tn-Itbrn, f occ m sz grs, hd - v frm, calc cmt, clyey, occ glau grs, slty, n vis por, mod bri yel flor. Spl Depth Sample Description L-205 PB1 Core Descriptions *** Continued*** Core #6: 4735' to 4795' MD; Cut = 60 ft, Recovered = 60.6 ft 4772' - 4778' SS: m brn, of gr, frm to v frm, sbang, p srtd, slty grdg to sndy sltst, clyey, p intgr por, even brn o stn, even mod bri yel gld flor 4778' - 4782' CLYST: Itgy, frm-v frm, swelling Gys, rr blebs w/ slt-vf snd, tr blk sh ptgs -size of m grs, v sl talc, n flor. 4782' - 4790' SS: Itbrn, clr of-f sz almost uncon qtz grs, sbang, mod - w srtd, vg intgr por, m brn o in por spaces, even mod bri yel gld flor. 4790' - 4795' CLYST: Itgy, frm-v frm, swelling clys, n flor Core #7: 4795' to 4855' MD; Cut = 60 ft, Recovered = 60.5 ft 4795' - 4803' CLYST: light grey, firm to very firm, clays swell on conact with water, no fluorescence ' SST: OBb sandstone consisting of brown (friable) sandstone, clear to translucent quartz, predominantly fine-grained, moderately sorted, subangular grains, trace 4806' - 4818 glauconite, trace clay, fair to good porosity, even brown stain, even moderate gold fluorescence-- hard stringer of grey, calclareous cement mid-sandstone 4821' -4833' CLYST: light grey, swelling, firm to very firm, no fluorescence CLYST: as above, with contact/sand stringer visible-- SST: light to medium brown, friable, even brown stain, very fine-grained, well sorted, subangular, good visible 4838' porosity, even moderately bright yellow-gold fluorescence 4839' -4845' CLYST: light grey to grey, swelling, firm to very firm, no fluorescence 4848' -4851' SST: brown, friable to slightly firm, clear to translucent quartz, predominantly fine- to medium-grained, poorly sorted, dark chert, subangular to subrounded grains, 4854' CLYST: light to medium grey, firm to very firm, clays swell on conact with water, no fluorescence Core #8: 4855' to 4905' MD; Cut = 50 ft, Recovered = 50 ft 4855 -4860 SLTST: med to It gy, hard to firm, sl sandy, micaceous, brown org. matter and tr coaly detritus, no vis stain 4883 -4866 SST: upper OBc sand, brown oil stained, Uvfgr to Lfgr, v well srtd, friable, tr dk chert, tr It green glauc, 2-3% talc cmt, good porosity, strong petroliferous odor, med brn even moderate gold fluor 4866 -4878' SST: upper OBc, It to med gy, very silty, Uvfgr, well srtd, fair poro, faint It brn stn to patchy med brn, sl patchy mod gold fluor 4881' SLTST: med gy, very clayey, sl sandy, hard to firm, some patchy stn and patchy mod gold fluor 4884 - 4890 SLTST: med gy, hard, sl sdy bet less sandy with depth, fife, fnt It brn stain, no fluor, occ fluor,but felt to be contamination 4893' SST: med gy, LVFgr to silty, firm, sl clayey, fnt It brn stn, patchy mod gold fluor 4896' SLTST: med gy, hard to firm, sl sdy, no stn or fluor 4899 - 4905' CLYST: med gy, v silty, hard to firm, no stn or fluor ibd with SLTST, med gy, sl sdy, no vis stn, rr spty gold fluor Core #9: 4905' to 4965' MD; Cut = 60 ft, Recovered = 60 ft 4905 - 4910' CLYST: med gy, silty, hard, fife, rr rip up clayt, bet silty towards base 4913' SST: med gy-brn, LVFgr, well srtd, sl silty, hard, poor to fair porosity, even med brn stn, even mod gold fluor, petroliferous odor -Poor pay SST: med brn to gy-brn, LFgr with 5% Mgr and 25%Uvfgr, mod srtd, 5% glauc, some silty mtx, 25% talc cmt, even med brn stn, even mod to dull gold fluor, strong 4916' petrol odor -Fair Pay 4919' SST: med gy-brn, Uvfgr, well srtd, silty mtx, poor to fair poro, scatt glauc, patchy med brn stn, patchy very faint, v dull yel-gld fluor, v fnt odor -Poor Pay 4922 - 4925' SST: med brn, UVFgr -LFgr, well srtd, 1-2% talc cmt, friable, fair to good poro, even med brn stn, even mod gold fluor, petroliferous odor -good pay 4928' SST: med to dk brn, LF to UFgr, friable, well srtd, good poro, even med brn stn, even mod yel-gold fluor, v strong petrolilferous odor -Best pay 4931' CLYST: med gy, hard, fife, blocky, no shows 4934 - 4940' SST: med brn, UFgr, well srtd, clean, friable, 3-4% glauc, no vis cmt, good est poro, even med brn stn, even mod gold fluor, good petroliferous odor -good pay SST: med gy - gy brn, VF-Fgr, mod srtd, silty, 5-8% coaly detritus, 4% glauc, poor to fair poro, fnt It brn stn, streaky to banded mod to dull gold fluor, weak petroliferous 4943' odor -Poor pay 4946' SST: med brn, mostly LVFgr, v well srtd, fair to good poro, even med brn stn, even mod gold fluor, good petroliferous odor - Fair to good pay SST: med brn, LVFgr, v well srtd, friable, occ coaly detritus, no vis cmt, fair to good poro, even med brn stn, mostly even mod gold fluor - occ sl patchy, Note: 4949' spl 4949 - 4955 had a thin bed of fife CLYST, med gy, hard, -Fair pay 4958' SST: med brn to gy-brn, VFgr, well srtd, silty, no vis cmt, fair to poorest poro, patchy med brn stn, mod to bri sl patchy yel-gold fluor, petroliferous odor - Poor to fair pay 4961' SST: med brn, UVFgr to minor Lfgr, well to mod srtd, 1-2% coaly detritus, thin interbeds of silty ss, fair est poro, even to banded mod to bri yel-gld fluor -Fair pay 4964' SST: med brn, UVFgr, mod srtd, thin interbedded with silty gy sand and gy clayst, poor overall poro, patchy to streaky med brn stn and mod yel-gld fluor -Poor pay by ~~ . ~~ ~~~ _ ~ ~ Schlumberger ~-~u~ra ~ ~7UfV~V R~LJVft Client: BP Exploration Alaska Field: Prudhoe Bay Unit - WOA Structure 1 Slot: L-PAD / L-205 Well: L-205 drilling Borehole: L-205P81 uwllAPl#: 500292338870 Survey Name 1 Date: L-205P61 /April 29, 2008 Tort I AHD 1 DDI / ERD ratio: 116.943° / 1924.73 ft / 5.394 / 0.411 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Location LatlLong: N 70.35009145, W 149.32507882 Location Grid NIE YIX: N 5978082.320 ftUS, E 583130.470 ftUS Grid Convergence Angle: +0.63562040° Vertical Section Azimuth: 247.18° Vertical Section Origin: N 0.000 ft, E 0.000 ft ND Reference Datum: Rotary Table ND Reference Elevation: 76.10 ft relative t0 MSL Sea Bed 1 Ground Level Elevation: 47.60 ft relabve to MSL Magnetic Declination: 22.971 ° Total Field Strength: 57648.229 nT Magnetic Dip: 80.883° Declination Date: 27-Apr-08 Magnetic Declination Model: BGGM 2007 North Reference: True North Total Corr Mag North -> True North: +22.971 ° Comments Measured Inclination Azimuth Sub•Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 1100 ft ftUS ftUS KIC v .uv v.uv u .vu -/o.lv u.uv u .uu u. uv u .uv u. uu v .w u.uv ~y/8U8Y .3L GYD GC SS 100 .00 0.57 217 .96 23. 90 100. 00 0 .00 0. 50 0 .50 -0. 39 -0. 31 0.57 5978081 .92 181 .00 0.86 102 .64 104. 89 180. 99 0 .31 1. 23 0 .84 -0. 84 0 .04 1.50 5978081 .48 275 .00 1.76 66 .92 198. 87 274. 97 0 .17 3. 31 2 .10 -0. 43 2. 06 1.25 5978081 .91 366 .00 0.89 343 .53 289. 85 365. 95 -1 .85 5. 10 3 .24 0. 79 3. 14 2.06 5978083 .15 459 .00 1.97 257 .97 382. 83 458. 93 -3 .33 7. 07 1 .79 1. 15 1. 37 2.26 5978083 .49 551 .00 3.36 217. 40 474. 73 550. 83 -1 .84 11. 19 2 .24 -1. 32 -1. 81 2.46 5978080 .98 644 .00 5.70 201. 25 567. 44 643. 54 2 .06 18. 49 9 .33 -7. 79 -5. 14 2.84 5978074 .48 736 .00 7.65 210 .60 658. 82 734. 92 7 .64 29. 16 19 .96 -17. 32 -9. 92 2.42 5978064 .89 835 .00 8.60 223 .39 756. 83 832. 93 15 .73 43. 09 33 .79 -28. 37 -18. 36 2.06 5978053 .75 935 .00 9.75 241. 75 855. 57 931. 67 27 .80 58. 90 48 .87 -37. 81 -30. 95 3.13 5978044 .17 1035 .00 13.48 249. 51 953. 51 1029. 61 43 .07 79. 00 67 .39 -45. 91 -49. 34 4.04 5978035 .87 1115 .00 16.16 253. 08 1030. 84 1106. 94 63 .16 99. 46 86 .43 -52. 41 -68. 73 3.54 5978029 .16 MWD+IFR+MS 1136 .89 16.70 254. 64 1051. 84 1127. 94 83 .55 105. 65 92 .23 -54. 13 -74. 67 3.19 5978027 .37 1258 .24 22.93 265. 48 1165. 99 1242. 09 89 .70 146. 66 130 .09 -60. 62 -115. 11 5.94 5978020 .43 1326 .92 24.06 268. 62 1228. 97 1305. 07 129 .48 174. 03 155 .35 -62. 01 -142. 44 2.45 5978018 .74 1421 .68 27.17 270. 67 1314. 41 1390. 51 155 .22 214. 99 193 .67 -62. 22 -183. 40 3.41 5978018 .07 1516 .50 30.08 271. 97 1397. 63 1473. 73 193 .05 260. 41 236 .83 -61. 15 -228. 80 3.14 5978018 .64 1611 .33 32.06 273 .04 1478. 86 1554. 96 234 .49 309. 35 283 .89 -59. 00 -277. 69 2.17 5978020 .25 1707 .20 31.09 272 .76 1560. 53 1636. 63 278 .72 359. 55 332 .65 -56. 46 -327. 83 1.02 5978022 .23 1801 .84 32.49 272. 47 1640. 97 1717. 07 323 .94 409. 40 381 .50 -54. 19 -377. 63 1.49 5978023. 95 1896 .82 32.42 273. 61 1721. 12 1797. 22 368 .96 460. 37 431 .61 -51. 49 -428. 53 0.65 5978026. 09 1992 .43 33.98 273. 42 1801. 12 1877. 22 414 .83 512. 72 483 .20 -48. 28 -480. 78 1.64 5978028. 72 ~t3373V.4/ IV /U.:S~UV~Jl4~ W 74`J.JLSU/tftfL 583130.17 N 70.35009038 W 149.32508131 583130.52 N 70.35008914 W 149.32507850 583132.53 N 70.35009027 W 149.32506213 583133.60 N 70.35009362 W 149.32505332 583131.83 N 70.35009460 W 149.32506768 583128.67 N 70.35008785 W 149.32509353 583125.42 N 70.35007017 W 149.32512056 583120.75 N 70.35004413 W 149.32515931 583112.43 N 70.35001394 W 149.32522783 583099.94 N 70.34998814 W 149.3253 583081.65 N 70.34996604 W 149.3254 583062.33 N 70.34994827 W 149.32563 583056.41 N 70.34994357 W 149.32568501 583016.05 N 70.34992584 W 149.32601323 582988.74 N 70.34992203 W 149.32623514 582947.79 N 70.34992145 W 149.32656760 582902.38 N 70.34992437 W 149.32693620 582853.48 N 70.34993025 W 149.32733307 582803.32 N 70.34993718 W 149.32774004 582753.50 N 70.34994338 W 149.32814434 582702.58 N 70.34995076 W 149.32855751 582650.30 N 70.34995951 W 149.32898168 SurveyEditor Ver SP 2.1 Bid( doc4Ox_1OO) L-205\L-205 drilling\L-2O5P61\L-2O5PB1 Generated 8/4/2008 11:09 AM Page 1 of 3 2087.04 33. 75 273 .91 1879. 68 2181.62 33. 61 271 .96 1958. 39 2274.74 33. 39 272 .09 2036. 04 2367.93 33. 39 272 .47 2113. 85 2462.46 33. 02 270 .42 2192. 94 2557.63 33. 63 270 .02 2272. 46 2651.46 33. 98 270 .29 2350. 43 2746.02 33. 40 270 .56 2429. 11 2842.54 33. 47 270 .62 2509. 66 2937.92 33. 60 270 .76 2589. 16 2967.43 33. 62 270 .56 2613. 74 3064.22 33. 69 267 .80 2694. 31 3096.47 33. 00 265 .70 2721. 25 3128.78 32. 26 264 .36 2748. 46 3159.49 31. 27 263 .69 2774. 57 3193.80 30. 72 262 .35 2803. 98 3228.06 30. 31 261 .36 2833. 50 3256 .57 3288 .64 3319 .45 3351 .41 3383 .15 3417 .50 3447 .07 3479 .05 3511 .23 3542 .60 3574 .08 31.84 229. 55 3606 .06 31.75 225 .85 3637 .82 31.24 221 .48 3669 .43 30.96 217 .51 3701 .35 30.98 212 .63 29.66 29.38 30.08 30.91 31.18 31.40 31.66 31.50 31.56 31.59 260.76 257.58 253.60 250.25 247.14 1955.78 2034.49 2112.14 2189.95 2269.04 2348.56 2426.53 2505.21 2585.76 2665.26 2689.84 2770.41 2797.35 2824.56 2850.67 2880.08 2909.60 2934.29 2962.20 2988.96 3016.50 3043.69 461 .75 565. 44 535 .28 -44. 91 -533 .39 508 .93 617. 89 587 .29 -42. 22 -585 .77 556 .17 669. 28 638 .41 -40. 41 -637 .13 602 .81 720. 57 689 .44 -38. 37 -688 .37 649 .25 772. 33 741 .05 -37. 06 -740 .12 696 .44 824. 62 793 .26 -36. 86 -792 .40 744 .55 876. 82 845 .40 -36. 71 -844 .61 792 .61 929. 27 897 .79 -36. 33 -897 .06 840 .81 982. 46 950 .91 -35. 78 -950 .24 889 .61 1035. 15 1003 .54 -35. 14 -1002 .92 937 .93 1051. 48 1019 .86 -34. 96 -1019 .26 952 .91 1105. 12 1073 .48 -35. 72 -1072 .88 0.38 5978031.50 582597.66 N 70.34996871 W 149.32940878 1.15 5978033.61 582545.26 N 70.34997604 W 149.32983395 0.25 5978034.85 0.22 5978036.32 1.25 5978037.06 0.68 5978036.68 0.41 5978036.24 0.63 5978036.05 0.08 5978036.01 0.16 5978036.06 0.38 5978036.06 1.58 5978034.70 1002.64 1122. 84 1091 .20 -36. 73 -1090.58 4.17 5978033.50 1019 .34 1140. 26 1108 .59 -38. 23 -1107 .93 3.20 5978031.80 1035 .92 1156. 43 1124 .72 -39. 92 -1124 .01 3.42 5978029.94 1051 .39 1174. 10 1142 .32 -42. 06 -1141 .55 2.57 5978027.60 1068 .39 1191. 49 1159 .62 -44. 52 -1158. 77 1.89 5978024.95 1085 .21 1205. 74 1173 .77 -46. 74 -1172. 84 2.51 5978022.58 1099 .05 1221. 54 1189 .40 -49. 70 -1188. 36 4.96 5978019.44 1114 .50 1236. 81 1204 .34 -53. 51 -1203. 15 6.80 5978015.47 1129 .60 1253. 03 1219 .97 -58. 55 -1218. 56 5.92 5978010.27 1145 .76 1269. 39 1235 .49 -64. 49 -1233. 80 5.12 5978004.15 244.02 2996.95 3073.05 1162.12 1287.23 240.61 3022.16 3098.26 1179.95 1302.69 238.42 3049.40 3125.50 1195.35 1319.44 235.45 3076.83 3152.93 1211.95 1336.26 232.42 3103.56 3179.66 1228.50 1352.69 2858.19 2886.10 2912.86 2940.40 2967.59 3732.81 30. 53 208 .33 3266. 09 3764.15 30. 33 204 .53 3293. 12 3796.35 30. 34 201 .83 3320. 91 3827.84 29. 59 197 .44 3348. 19 3859.82 28. 63 192 .72 3376. 14 3892.65 28. 11 188 .56 3405. 03 3921.94 27. 97 186 .15 3430. 88 3953.36 27. 71 185 .06 3458. 66 3985.07 27. 33 186 .92 3486. 78 4016.75 26. 24 188 .33 3515. 07 4048.55 25. 02 188 .51 3543. 74 3130.34 3206.44 1244.49 1369.23 3157.52 3233.62 1260.37 1386.08 3184.61 3260.71 1276.25 1402.66 3211.68 3287.78 1291.46 1418.99 3239.05 3315.15 1305.91 1435.41 3342.19 1319.81 3369.22 1332.71 3397.01 1344.73 3424.29 1356.42 3452.24 1367.04 3481.13 1376.60 3506.98 1385.20 3534.76 1392.12 3562.88 1399.10 3591.17 1406.16 1451.49 1467.36 1483.62 1499.34 1514.89 1530.49 1544.25 1558.93 1573.58 1587.85 1252.11 1266.20 1281.16 1295.87 1309.86 1323.55 1337.00 1349.59 1361.27 1372.21 1382.04 1390.96 1399.45 1406.96 1413.42 1418.93 1423.17 1427.40 1431.85 1436.70 -71.87 -1250.04 -79.05 -1263.73 -87.55 -1278.16 -96.72 -1292.26 -106.39 -1305.53 -116.81 -1318.39 -128.14 -1330.85 -140.13 -1342.30 -152.73 -1352.68 -166.16 -1362.11 -180.01 -1370.27 -194.22 -1377.33 -209.17 -1383.73 -223.97 -1389.02 -238.98 -1393.07 -254.30 -1395.96 -267.95 -1397.72 -282.56 -1399.15 -297.13 -1400.68 -311.28 -1402.57 3619.84 1413.39 1601.61 1441.67 -324.88 -1404.59 4.76 5977996.60 6.09 5977989.26 3.62 5977980.61 4.83 5977971.28 5.06 5977961.46 4.86 5977950.91 6.10 5977939.44 7.36 5977927.32 6.55 5977914.61 7.87 5977901.08 7.13 5977887.13 6.17 5977872.85 4.23 5977857.84 7.36 5977842.98 7.78 5977827.93 6.22 5977812.57 3.90 5977798.90 1.82 5977784.29 2.96 5977769.70 3.98 5977755.53 3.84 5977741.91 582493.89 582442.63 582390.88 582338.60 582286.40 582233.95 582180.78 582128.09 582111.76 582058.15 N 70.34998099 W 149.33025091 N 70.34998655 W 149.33066691 N 70.34999011 W 149.33108697 N 70.34999064 W 149.33151140 N 70.34999102 W 149.33193518 N 70.34999206 W 149.33236096 N 70.34999354 W 149.33279266 N 70.34999525 W 149.33322038 N 70.34999576 W 149.33335297 N 70.34999364 W 149.33378826 582040.47 N 70.34999090 W 149.33393192 582023.13 N 70.34998677 W 149.3340 582007.08 N 70.34998217 W 149.3342 581989.57 N 70.34997630 W 149.33434568 581972.38 N 70.34996957 W 149.33448547 581958.33 N 70.34996351 W 149.33459973 581942.85 N 70.34995540 W 149.33472568 581928.10 N 70.34994500 W 149.33484573 581912.75 N 70.34993124 W 149.33497082 581897.57 N 70.34991498 W 149.33509457 581881.42 N 70.34989483 W 149.33522638 581867.81 N 70.34987520 W 149.33533748 581853.48 N 70.34985198 W 149.33545462 581839.48 N 70.34982690 W 149.33556905 581826.32 N 70.34980048 W 149.33567679 581813.58 N 70.34977202 W 149.33578112 581801.25 N 70.34974105 W 149.33588224 581789.94 N 70.34970828 W 149.33597519 581779.70 N 70.34967388 W 149.33605944 581770.42 N 70.34963717 W 149.3361 581762.41 N 70.34959932 W 149.336202 8 581755.51 N 70.34956050 W 149.33625950 581749.27 N 70.34951967 W 149.33631143 581744.15 N 70.34947923 W 149.33635434 581740.26 N 70.34943822 W 149.33638722 581737.55 N 70.34939636 W 149.33641061 581735.94 N 70.34935906 W 149.33642490 581734.67 N 70.34931917 W 149.33643651 581733.30 N 70.34927937 W 149.33644889 581731.57 N 70.34924071 W 149.33646422 581729.71 N 70.34920354 W 149.33648054 r SurveyEditor Ver SP 2.1 Bld( doc40x_100) L-205\L-205 drilling\L-205P61\L-205PB1 Generated 8/4/2008 11:09 AM Page 2 of 3 4079.75 23. 53 189 .47 3572. 18 3648 .28 1420.52 1614 .43 1446.52 -337.55 -1406 .59 4.94 5977729. 22 4111.85 22. 10 189 .90 3601. 76 3677 .86 1427.28 1626 .88 1451.47 -349. 82 -1408 .68 4.48 5977716. 93 4143.60 20. 74 189 .60 3631. 32 3707 .42 1433.97 1638 .47 1456.17 -361. 25 -1410 .64 4.30 5977705. 48 4174.25 19. 45 190 .71 3660. 10 3736 .20 1440.21 1649 .00 1460.56 -371. 61 -1412 .50 4.39 5977695. 10 4205.27 19. 63 191 .04 3689. 34 3765 .44 1445.94 1659 .38 1465.08 -381. 80 -1414 .46 0.68 5977684. 89 4236.35 19. 62 190 .84 3718. 61 3794 .71 1451.70 1669 .82 1469.69 -392. 05 -1416 .44 0.22 5977674. 62 4268.85 17. 68 189 .53 3749. 40 3825 .50 1457.50 1680 .21 1474.23 -402. 28 -1418 .28 6.11 5977664. 37 4298.91 16. 29 189 .88 3778. 15 3854 .25 1463.16 1688. 99 1478.03 -410. 93 -1419 .76 4.64 5977655. 70 4329.70 15. 21 189 .08 3807. 79 3883 .89 1467.88 1697 .35 1481.67 -419. 18 -1421 .14 3.58 5977647. 44 4355.14 15. 37 188 .98 3832. 33 3908 .43 1472.35 1704. 06 1484.57 -425. 80 -1422 .19 0.64 5977640. 81 4408.52 15. 79 187 .77 3883. 74 3959 .84 1475.89 1718. 39 1490.69 -439. 99 -1424 .28 0.99 5977626. 60 4440.91 15. 77 188 .65 3914. 91 3991 .01 1483.31 1727. 20 1494.48 -448. 70 -1425 .53 0.74 5977617. 87 4535.53 15. 73 189 .36 4005. 98 4082 .08 1487.86 1752. 89 1506.11 -474. 07 -1429 .55 0.21 5977592. 47 4630.49 15. 81 188 .51 4097. 37 4173 .47 1501.40 1778. 69 1518.11 -499. 57 -1433 .56 0.26 5977566. 93 4724.94 16. 01 189 .63 4188. 20 4264 .30 1514.98 1804. 58 1530.55 -525. 13 -1437 .64 0.39 5977541. 32 4820.99 16. 07 189 .12 4280. 51 4356 .61 1528.66 1831. 12 1543.77 -551. 32 -1441 .97 0.16 5977515. 09 4917.57 15. 95 190 .47 4373. 34 4449 .44 1542.80 1857. 76 1557.54 -577. 56 -1446 .50 0.41 5977488. 80 5013.19 15. 90 190 .51 4465. 29 4541 .39 1557.15 1884. 00 1571.70 -603. 36 -1451 .27 0.05 5977462. 95 Last Survey 5113.85 15. 40 190 .00 4562. 22 4638 .32 1571.56 1911. 15 1586.59 -630. 08 -1456 .11 0.52 5977436. 19 TD (Projected) 5165.00 15. 40 190 .00 4611. 54 4687 .64 1586.38 1924. 73 1594.10 -643. 46 -1458 .47 0.00 5977422. 78 1593.74 Survey Type: Definitive Survey NOTES: GYD GC SS - (Gyrodata -gyro single shots -- Gyrodata gyro orientation surveys. Not to be run above 70 degrees inclination. ) MWD + IFR + MS - ( In-field referenced MWD with mull-station analysis and correction appl ied in post-process ing. Assumes a BHA sag correction is applied to enhance inclination accuracy. ) Legal Description: Northing (Y) [ftUS] Eastin g (X) [ftUS] Surtace : 2361 FS L 3786 FEL S34 T12N R11E UM 5978082.32 583130.47 BHL : 1718 FS L 5246 FEL S34 T12N R11E UM 5977422.78 581679.37 581727.85 581725.89 581724.05 581722.31 581720.47 581718.60 581716.87 581715.49 581714.20 581713.22 581711.30 581710.14 581706.40 581702.67 581698.87 581694.84 581690.60 581686.11 581681.58 N 70.34916892 W 149.33649677 N 70.34913540 W 149.33651373 N 70.34910418 W 149.33652966 N 70.34907587 W 149.33654469 N 70.34904803 W 149.33656057 N 70.34902003 W 149.33657663 N 70.34899209 W 149.33659158 N 70.34896844 W 149.33660358 N 70.34894592 W 149.33661475 N 70.34892782 W 149.33662329 N 70.34888907 W 149.33664020 N 70.34886526 W 149.33665040 N 70.34879595 W 149.33668299 N 70.34872631 W 149.33671548 N 70.34865646 W 149.3367 N 70.34858492 W 149.33678363 N 70.34851321 W 149.33682036 N 70.34844273 W 149.33685909 N 70.34836974 W 149.33689831 581679.37 N 70.34833319 W 149.33691743 SurveyEditor Ver SP 2.1 Bld( doc40x_100) L-205\L-205 drilling\L-205P61\L-205P61 Generated 8/4/2008 11:09 AM Page 3 of 3 by L-205 Survey Report Schlumberger Report Date: 5-Jun-0B Client: BP Exploration Alaska Field: Prudhoe Bay Unit - WOA Structure 1 Slot: L-PAD / L-205 well: L-205 drilling Borehole: L-205 UWIIAPI#: 500292338800 Survey Name 1 Date: L-2051 June 4, 2008 Tort 1 AHD 1 DDI I ERD ratio: 297.425° 16170.47 ft / 6.565 / 1.379 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Location LatiLong: N 70.35009145, W 149.32507882 Location Grid N/E YIX: N 5978082.320 ftUS, E 583130.470 ftUS Grid Convergence Angle: +0.63562040° Survey 1 DLS Computation Method: Minimum Curvature / Lubinski Vertical Section Azimuth: 168.00° Vertical Section Origin: N 0.000 ft, E 0.000 ft TVD Reference Datum: Rotary Table TVD Reference Elevation: 76.10 ft relative t0 MSL Sea Bed 1 Ground Level Elevation: 47.60 ft relative to MSL Magnetic Declination: 22.934° Total Field Strength: 57649.828 nT Magnetic Dip: 80.884° Declination Date: 21-May-OS Magnetic Declination Model: BGGM 2007 North Reference: Tale North Total Corr Mag North •> True North: +22,834° Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de R ft ft ft ft ft ft de 100 ft ftUS ftUS rcit u.uu u.uu u.w -io.iu u.~~ ~.uu u .v~ u.~u u.uu u.uu u.uu aaraua~.sc oasisu.4r rv ru.sau~ai4a vv iaa.szaurutsz GYD GC SS 100.00 0.57 217.96 23. 90 100.00 0.32 0 .50 0.50 -0.39 -0.31 0.57 5978081.92 583130.17 N 70.35009038 W 149.32508131 181.00 0.86 102.64 104. 89 180.99 0.83 1 .23 0.84 -0.84 0.04 1.50 5978081.48 583130.52 N 70.35008914 W 149.32507850 275.00 1.76 66.92 198. 87 274.97 0.85 3 .31 2.10 -0.43 2.06 1.25 5978081.91 583132.53 N 70.35009027 W 149.32506213 366.00 0.89 343.53 289. 85 365.95 -0.12 5 .10 3.24 0.79 3.14 2.06 5978083.15 583133.60 N 70.35009362 W 149.32505332 459.00 1.97 257.97 382. 83 458.93 -0.84 7 .07 1.79 1.15 1.37 2.26 5978083.49 583131.83 N 70.35009460 W 149.32506768 551.00 3.36 217.40 474. 73 550.83 0.91 11 .19 2.24 -1.32 -1.81 2.46 5978080.98 583128.67 N 70.35008785 W 149.32509353 644.00 5.70 201.25 567. 44 643.54 6.55 18 .49 9.33 -7.79 -5.14 2.84 5978074.48 583125.42 N 70.35007017 W 149.32512056 736.00 7.65 210.60 658. 82 734.92 14.88 29 .16 19.96 -17.32 -9.92 2.42 5978064.89 583120.75 N 70.35004413 W 149.32515931 835.00 8.60 223.39 756. 83 832.93 23.93 43 .09 33.79 -28.37 -18.36 2.06 5978053.75 583112.43 N 70.35001394 W 149.32522783 935.00 9.75 241.75 855. 57 931.67 30.55 58 .90 48.87 -37.81 -30.95 3.13 5978044.17 583099.94 N 70.34998814 W 149.3253 1035.00 13.48 249.51 953. 51 1029.61 34.64 79 .00 67.39 -45.91 -49.34 4.04 5978035.87 583081.65 3, N 70.34996604 W 149.3254- 1115.00 16.16 253.08 1030. 84 1106.94 36.98 99 .46 86.43 -52.41 -68.73 3.54 5978029.16 583062.33 N 70.34994827 W 149.32563 MWD+IFR+MS 1136.89 16.70 254.64 1051. 84 1127.94 37.42 105 .65 92.23 -54.13 -74.67 3.19 5978027.37 583056.41 N 70.34994357 W 149.32568501 1258.24 22.93 265.48 1165. 99 1242.09 35.36 146 .66 130.09 -60.62 -115.11 5.94 5978020.43 583016.05 N 70.34992584 W 149.32601323 1326.92 24.06 268.62 1228. 97 1305.07 31.04 174 .03 155.35 -62.01 -142.44 2.45 5978018.74 582988.74 N 70.34992203 W 149.32623514 1421.68 27.17 270.67 1314. 41 1390.51 22.73 214 .99 193.67 -62.22 -183.40 3.41 5978018.07 582947.79 N 70.34992145 W 149.32656760 1516.50 30.08 271.97 1397 .63 1473.73 12.25 260 .41 236.83 -61.15 -228.80 3.14 5978018.64 582902.38 N 70.34992437 W 149.32693620 1611.33 32.06 273.04 1478 .86 1554.96 -0.02 309 .35 283.89 -59.00 -277.69 2.17 5978020.25 582853.48 N 70.34993025 W 149.32733307 1707.20 31.09 272.76 1560 .53 1636.63 -12.93 359 .55 332.65 -56.46 -327.83 1.02 5978022.23 582803.32 N 70.34993718 W 149.32774004 1801.84 32.49 272.47 1640 .97 1717.07 -25.51 409 .40 381.50 -54.19 -377.63 1.49 5978023.95 582753.50 N 70.34994338 W 149.32814434 1896.82 32.42 273.61 1721 .12 1797.22 -38.74 460 .37 431.61 -51.49 -428.53 0.65 5978026.09 582702.58 N 70.34995076 W 149.32855751 1992.43 33.98 273.42 1801 .12 1877.22 -52.74 512 .72 483.20 -48.28 -480.78 1.64 5978028.72 582650.30 N 70.34995951 W 149.32898168 f SurveyEditor Ver SP 2.1 Bld( doc40x_100) L-205\L-205 drilling\L-205\L-205 Generated 8/4/2008 11:08 AM Page 1 of 5 Comments Measured Inclination Azimuth Sub•Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 1700 ft n oo ftUS cn+on~• cn ftUS roece~ cc w1 ~n ~neecn~~ In! gee ~eeenfl~o LUOl.U4 JJ.lO Gl J.01 10/0. 00 1`fUO.lO -00.0/ JOJ.YY JJJ. LO WY. 01 -JJJ .J.7 V.JU JJI VVJ I. JV JVLJa1 .VV I~ Iv.J+.~JVV1 1 •• I+ci.VL.-i+vvlV 2181.62 33.61 271.96 1958. 39 2034 .49 -80.49 617 .89 587. 29 -42. 22 -585 .77 1.15 5978033. 61 582545.26 N 70.34997604 W 149.32983395 2274.74 33.39 272.09 2036. 04 2112 .14 -92.94 669 .28 638. 41 -40. 41 -637 .13 0.25 5978034. 85 582493.89 N 70.34998099 W 149.33025091 2367.93 33.39 272.47 2113. 85 2189 .95 -105.59 720 .57 689. 44 -38. 37 -688 .37 0.22 5978036. 32 582442.63 N 70.34998655 W 149.33066691 2462.46 33.02 270.42 2192. 94 2269 .04 -117.63 772 .33 741. 05 -37. 06 -740 .12 1.25 5978037. 06 582390.88 N 70.34999011 W 149.33108697 2557.63 33.63 270.02 2272. 46 2348 .56 -128.70 824 .62 793. 26 -36. 86 -792 .40 0.68 5978036. 68 582338.60 N 70.34999064 W 149.33151140 2651.46 33.98 270.29 2350. 43 2426 .53 -139.69 876 .82 845. 40 -36. 71 -844 .61 0.41 5978036. 24 582286.40 N 70.34999102 W 149.33193518 2746.02 33.40 270.56 2429. 11 2505 .21 -150.98 929 .27 897. 79 -36. 33 -897 .06 0.63 5978036. 05 582233.95 N 70.34999206 W 149.33236096 2842.54 33.47 270.62 2509. 66 2585 .76 -162.57 982 .46 950. 91 -35. 78 -950 .24 0.08 5978036. 01 582180.78 N 70.34999354 W 149.33279266 2937.92 33.60 270.76 2589. 16 2665 .26 -174.14 1035 .15 1003. 54 -35. 14 -1002 .92 0.16 5978036. 06 582128.09 N 70.34999525 W 149.33322037 Tie-In Survey 2967.43 33.62 270.56 2613. 74 2689 .84 -177.72 1051 .48 1019. 86 -34. 96 -1019 .26 0.38 5978036. 06 582111.76 N 70.34999576 W 149.33335297 MWD+IFR+MS 3107.78 31.53 273.30 2732. 01 2808 .11 -195.86 1127 .03 1095. 24 -32. 46 -1094 .76 1.82 5978037. 72 582036.24 N 70.35000254 W 149.3339 3203.61 31.04 273.04 2813. 90 2890 .00 -208.88 1176 .80 1144. 83 -29. 71 -1144 .45 0.53 5978039. 92 581986.53 N 70.35001004 W 149.33436924 3297.38 30.81 272.91 2894. 34 2970 .44 -221.34 1224 .99 1192. 88 -27. 21 -1192 .57 0.26 5978041. 89 581938.38 N 70.35001685 W 149.33475991 3392.05 30.68 272.74 2975. 71 3051 .81 -233.72 1273 .38 1241. 16 -24. 82 -1240 .91 0.17 5978043. 74 581890.03 N 70.35002335 W 149.33515232 3487.43 31.05 272.49 3057. 58 3133 .68 -246.06 1322 .32 1289. 99 -22. 59 -1289 .79 0.41 5978045. 42 581841.13 N 70.35002942 W 149.33554912 3582.92 30.87 268.82 3139. 47 3215 .57 -256.83 1371 .43 1339. 07 -22. 03 -1338 .89 1.99 5978045. 45 581792.03 N 70.35003095 W 149.33594771 3678.31 29.99 263.26 3221. 74 3297 .84 -263.61 1419 .71 1387. 28 -25. 33 -1387 .04 3.09 5978041. 61 581743.92 N 70.35002190 W 149.33633860 3772.61 29.22 254.87 3303. 76 3379 .86 -264.51 1466 .23 1433. 10 -34. 11 -1432 .69 4.47 5978032. 33 581698.38 N 70.34999790 W 149.33670912 3866.93 28.77 247.68 3386. 29 3462 .39 -259.19 1511 .91 1476. 73 -48. 74 -1475 .92 3.72 5978017. 22 581655.32 N 70.34995789 W 149.33706007 3962.10 29.80 240.93 3469. 31 3545 .41 -248.14 1558 .42 1519. 36 -68. 93 -1517 .79 3.63 5977996. 56 581613.68 N 70.34990270 W 149.33739992 4055.92 30.62 236.90 3550. 40 3626 .50 -232.69 1605 .61 1560. 98 -93. 31 -1558 .19 2.33 5977971. 74 581573.56 N 70.34983608 W 149.33772781 4150.19 33.73 229.21 3630. 22 3706 .32 -211.43 1655 .75 1602. 91 -123. 54 -1598 .14 5.45 5977941. 07 581533.95 N 70.34975347 W 149.33805210 4243.84 36.39 222.26 3706. 90 3783 .00 -182.66 1709 .50 1644. 45 -161. 11 -1636 .53 5.12 5977903. 08 581495.98 N 70.34965082 W 149.33836367 4339.08 38.26 217.52 3782. 65 3858 .75 -147.01 1767 .22 1686. 06 -205. 42 -1673 .50 3.60 5977858. 37 581459.51 N 70.34952974 W 149.33866370 4434.10 40.45 214.68 3856. 12 3932 .22 -106.75 1827 .47 1727. 76 -254. 11 -1708 .97 2.98 5977809. 29 581424.59 N 70.34939670 W 149.33895148 4527.38 43.34 211.09 3925. 56 4001 .66 -62.60 1889 .74 1769. 46 -306. 43 -1742 .73 4.02 5977756. 61 581391.41 N 70.34925376 W 149.33922543 4621.75 46.89 207.11 3992. 16 4068 .26 -12.20 1956 .58 1812. 27 -364. 85 -1775 .16 4.80 5977697. 83 581359.63 N 70.34909413 W 149.33948862 4716.23 50.92 201.83 4054. 27 4130 .37 45.07 2027 .74 1854. 98 -429. 65 -1804 .54 5.99 5977632. 73 581330.98 N 70.34891710 W 149.339 4812.65 54.90 197.34 4112. 43 4188 .53 110.59 2104 .63 1897. 85 -502. 09 -1830 .23 5.55 5977560. 01 581306.09 7 N 70.34871918 W 149.3399 ' 4908.32 58.39 192.41 4165. 04 4241 .14 181.86 2184 .51 1939. 21 -579. 29 -1850 .66 5.64 5977482. 59 581286.52 N 70.34850826 W 149.34010 5003.84 61.96 190.35 4212. 55 4288 .65 257.91 2267 .36 1980. 38 -660. 51 -1866 .98 4.18 5977401. 20 581271.10 N 70.34828635 W 149.34023338 5098.67 64.50 185.97 4255. 27 4331 .37 337.37 2352 .01 2021. 01 -744. 29 -1878 .96 4.92 5977317. 30 581260.06 N 70.34805746 W 149.34033043 5191.99 68.17 183.53 4292 .73 4368 .83 419.20 2437 .47 2060. 35 -829. 45 -1886 .01 4.60 5977232. 08 581253.95 N 70.34782481 W 149.34038748 5225.86 70.74 183.18 4304 .61 4380 .71 449.78 2469 .18 2074. 98 -861. 11 -1887 .87 7.65 5977200. 40 581252.45 N 70.34773832 W 149.34040247 5257.11 70.58 183.12 4314 .96 4391 .06 478.24 2498 .67 2088. 84 -890 .55 -1889 .49 0.54 5977170. 95 581251.16 N 70.34765789 W 149.34041557 5287.53 72.38 181.94 4324 .62 4400 .72 506.16 2527 .51 2102. 43 -919 .37 -1890 .76 6.97 5977142. 12 581250.20 N 70.34757917 W 149.34042583 5319.72 74.33 180.47 4333 .85 4409 .95 536.19 2558 .35 2116. 67 -950 .20 -1891 .41 7.47 5977111. 29 581249.90 N 70.34749494 W 149.34043101 5350.15 74.11 180.62 4342 .12 4418 .22 564.77 2587 .63 2130. 22 -979 .48 -1891 .68 0.86 5977082. 01 581249.95 N 70.34741494 W 149.34043321 5381.99 75.69 179.68 4350 .41 4426 .51 594.82 2618 .37 2144. 60 -1010 .22 -1891 .76 5.72 5977051. 27 581250.21 N 70.34733097 W 149.34043380 5413.57 75.92 178.94 4358 .16 4434 .26 624.84 2648 .99 2158. 87 -1040 .83 -1891 .39 2.39 5977020. 67 581250.92 N 70.34724734 W 149.34043074 SurveyEditor Ver SP 2.1 Bld( doc40x_100) L-205\L-205 drilling\L-205\L-205 Generated 8/4/2008 11:08 AM Page 2 of 5 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft k ft k ft ft ft de 700 ft ftUS ftUS b44b.64 //.7y 7/t3.Z6 4J65. 6Z 444L/Z 655.5U ZtliSU.7ri Y7 /3 .47 -lU/Z. U"1 -"16yV.03 4.40 oa/naaa.au ~al[~L .VL IV /U.J4/ IOCI~ vv -14`J.J4U4L44`J 5477.05 78.12 177 .79 4372. 33 4448.43 685.72 2710 .86 2187 .78 -1102. 68 -1889 .57 3.30 5976958.85 581253 .42 N 70.34707838 W 149.34041584 5513.31 79.69 176 .35 4379. 31 4455.41 720.85 2746. 45 2204 .35 -1138. 21 -1887 .75 5.83 5976923.35 581255 .63 N 70.34698131 W 149.34040099 5593.21 82.51 174 .10 4391. 67 4467.77 799.15 2825. 37 2240 .44 -1216. 86 -1881 .18 4.49 5976844.78 581263 .08 N 70.34676644 W 149.34034746 5624.74 84.22 173 .22 4395. 31 4471.41 830.32 2856. 69 2254 .62 -1247. 99 -1877 .72 6.09 5976813.70 581266 .89 N 70.34668141 W 149.34031932 5655.76 87.07 170 .71 4397. 67 4473.77 861.17 2887. 62 2268 .14 -1278. 61 -1873 .40 12.23 5976783.13 581271 .55 N 70.34659776 W 149.34028417 5687.39 89.75 170 .34 4398. 55 4474.65 892.75 2919. 23 2281 .60 -1309. 79 -1868 .19 8.55 5976752.01 581277 .10 N 70.34651258 W 149.34024186 5719.98 92.77 167 .17 4397. 83 4473.93 925.32 2951. 81 2294 .93 -1341. 74 -1861 .84 13.43 5976720.14 581283 .80 N 70.34642530 W 149.34019025 5750.94 93.34 168 .07 4396. 18 4472.28 956.24 2982. 73 2307 .38 -1371. 94 -1855 .21 3.44 5976690.02 581290 .77 N 70.34634281 W 149.34013639 5782.38 97.22 166 .57 4393. 29 4469.39 987.54 3014. 03 2320 .20 -1402. 47 -1848 .34 13.22 5976659.56 581297 .97 N 70.34625939 W 149.34008057 5814.15 99.54 166 .88 4388. 66 4464.76 1018.96 3045. 46 2333 .11 -1433. 06 -1841 .13 7.37 5976629.06 581305 .53 N 70.34617583 W 149.34002194 5846.07 99.63 167 .80 4383. 34 4459.44 1050.43 3076. 93 2346 .70 -1463. 77 -1834 .23 2.86 5976598.43 581312 .76 N 70.34609194 W 149.3399 5878.23 102.93 168 .56 4377. 05 4453.15 1081.96 3108. 47 2361 .07 -1494. 64 -1827 .77 10.52 5976567.64 581319 .57 N 70.34600762 W 149.33991339 5909.60 102.86 168 .42 4370. 05 4446.15 1112.54 3139. 05 2375 .47 -1524. 60 -1821 .67 0.49 5976537.75 581326 .00 N 70.34592577 W 149.33986381 5941.73 102.44 168 .12 4363. 02 4439.12 1143.89 3170. 40 2390 .45 -1555. 30 -1815 .29 1.59 5976507.13 581332 .71 N 70.34584192 W 149.33981202 5973.55 102.26 168 .29 4356. 21 4432.31 1174.97 3201. 48 2405 .57 -1585. 72 -1808 .94 0.77 5976476.78 581339 .40 N 70.34575880 W 149.33976039 6005.50 102.02 168 .13 4349. 49 4425.59 1206.21 3232. 71 2421 .08 -1616. 30 -1802 .56 0.90 5976446.28 581346 .12 N 70.34567527 W 149.33970854 6037.36 101.70 169 .58 4342. 94 4419.04 1237.38 3263. 89 2437 .16 -1646. 89 -1796 .53 4.57 5976415.76 581352 .49 N 70.34559170 W 149.33965956 6068.34 101.38 169 .43 4336. 74 4412.84 1267.73 3294. 25 2453 .39 -1676. 74 -1791 .00 1.14 5976385.98 581358 .35 N 70.34551017 W 149.33961463 6100.22 101.51 167 .91 4330. 42 4406.52 1298.97 3325. 49 2469 .99 -1707. 37 -1784 .86 4.69 5976355.41 581364. 82 N 70.34542648 W 149.33956476 6131.50 103.25 167 .96 4323. 71 4399.81 1329.52 3356. 05 2486 .16 -1737. 25 -1778 .48 5.56 5976325.61 581371. 54 N 70.34534486 W 149.33951287 6163.54 103.03 167 .35 4316. 43 4392.53 1360.72 3387. 25 2502 .83 -1767. 73 -1771 .81 1.98 5976295.21 581378. 55 N 70.34526160 W 149.33945867 6195.45 102.79 167 .31 4309. 30 4385.40 1391.82 3418. 35 2519 .57 -1798. 08 -1764 .98 0.76 5976264.95 581385. 71 N 70.34517870 W 149.33940325 6227.68 102.44 165 .98 4302. 26 4378.36 1423.27 3449. 80 2536 .46 -1828. 68 -1757. 72 4.17 5976234.43 581393. 31 N 70.34509511 W 149.33934423 6259.20 102.30 165 .42 4295. 51 4371.61 1454.03 3480. 59 2552 .83 -1858. 51 -1750. 11 1.79 5976204.69 581401. 24 N 70.34501361 W 149.33928245 6290.39 102.19 165 .32 4288. 89 4364.99 1484.48 3511. 07 2569 .16 -1888. 00 -1742 .41 0.47 5976175.28 581409. 27 N 70.34493304 W 149.33921991 6322.25 102.02 165 .38 4282. 21 4358.31 1515.59 3542. 22 2586 .09 -1918. 14 -1734 .54 0.56 5976145.24 581417. 48 N 70.34485071 W 149.33915592 6354.57 100.30 165 .22 4275. 96 4352.06 1547.27 3573. 93 2603 .58 -1948. 81 -1726 .49 5.34 5976114.66 581425. 87 N 70.34476693 W 149.33909056 6386.13 96.45 165 .06 4271. 36 4347.46 1578.45 3605. 15 2620 .99 -1978. 98 -1718 .48 12.21 5976084.58 581434 .21 N 70.34468450 W 149.33 6417.24 92.83 165 .28 4268. 84 4344.94 1609.41 3636. 15 2638 .54 -2008. 95 -1710 .55 11.66 5976054.70 581442. 47 9 N 70.34460263 W 149.338 6448.97 91.61 166 .72 4267. 61 4343.71 1641.10 3667. 86 2657 .11 -2039. 72 -1702 .88 5.95 5976024.03 581450. 48 N 70.34451859 W 149.338898 6480.84 91.12 166 .86 4266. 86 4342.96 1672.95 3699. 72 2676 .38 -2070. 74 -1695 .60 1.60 5975993.10 581458. 11 N 70.34443386 W 149.33883962 6512.68 89.99 165 .37 4266. 55 4342.65 1704.77 3731. 56 2695 .57 -2101. 64 -1687 .96 5.87 5975962.28 581466. 09 N 70.34434943 W 149.33877756 6544.47 88.21 165 .62 4267. 05 4343.15 1736.52 3763. 34 2714 .70 -2132. 41 -1680 .00 5.65 5975931.60 581474 .39 N 70.34426537 W 149.33871290 6576.25 87.59 165 .29 4268. 21 4344.31 1768.25 3795. 10 2734 .02 -2163. 15 -1672 .02 2.21 5975900.96 581482 .70 N 70.34418139 W 149.33864811 6607.40 87.18 165 .66 4269. 63 4345.73 1799.34 3826. 22 2753 .20 -2193. 28 -1664 .22 1.77 5975870.92 581490 .84 N 70.34409911 W 149.33858472 6639.79 87.73 166 .22 4271. 07 4347.17 1831.68 3858 .57 2773 .56 -2224. 67 -1656 .36 2.42 5975839.63 581499 .05 N 70.34401336 W 149.33852087 6670.22 87.22 166 .31 4272. 41 4348.51 1862.06 3888. 97 2793 .04 -2254. 20 -1649 .14 1.70 5975810.18 581506 .59 N 70.34393269 W 149.33846224 6701.89 89.44 165 .92 4273. 33 4349.43 1893.70 3920. 63 2813 .46 -2284. 93 -1641 .54 7.12 5975779.54 581514 .53 N 70.34384874 W 149.33840054 6733.55 89.75 166 .78 4273. 56 4349.66 1925.35 3952 .29 2834 .19 -2315. 69 -1634 .07 2.89 5975748.86 581522 .34 N 70.34376470 W 149.33833985 6765.17 89.68 168 .24 4273. 72 4349.82 1956.96 3983 .91 2855 .56 -2346. 56 -1627 .23 4.62 5975718.07 581529 .52 N 70.34368037 W 149.33828430 SurveyEditor Ver SP 2.1 Bld( doc40x_100) L-205\L-205 drilling\L-205\L-205 Generated 8/4/2008 11:08 AM Page 3 of 5 Comments Measured Inclination Azimuth Sub•Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de k ft ft ft ft ft ft de 1700 ft ftUS ftUS 6796. 81 89.41 167.62 4273.97 4350.07 1988. 60 4015 .55 2877. 31 -2377 .50 -1620. 62 6828. 41 89.92 169.19 4274.15 4350.25 2020. 20 4047 .15 2899. 40 -2408 .45 -1614. 27 6860. 32 89.55 168.90 4274.30 4350.40 2052. 10 4079 .06 2922. 13 -2439 .78 -1608. 20 6892. 16 89.03 169.04 4274.69 4350.79 2083. 94 4110 .89 2944. 95 -2471 .03 -1602. 11 6923. 47 89.27 169.41 4275.16 4351.26 2115. 24 4142 .20 2967. 65 -2501 .79 -1596. 26 6954. 25 89.26 169.01 4275.55 4351.65 2146. 01 4172 .98 2990. 12 -2532 .02 -1590. 50 6985. 31 91.84 167.60 4275.25 4351.35 2177. 06 4204 .03 3012. 60 -2562 .43 -1584. 20 7016. 20 91.71 169.48 4274.30 4350.40 2207. 93 4234 .91 3035. 18 -2592 .69 -1578. 07 7048. 12 90.93 166.92 4273.56 4349.66 2239. 84 4266 .82 3058. 55 -2623 .92 -1571. 54 7079. 84 92.70 168.60 4272.56 4348.66 2271. 54 4298 .52 3081. 75 -2654 .90 -1564. 82 7111. 75 93.73 168.88 4270.77 4346.87 2303. 40 4330 .38 3105. 58 -2686 .15 -1558. 60 7142. 82 92.74 169.09 4269.01 4345.11 2334. 42 4361 .40 3129. 01 -2716 .60 -1552. 67 7173. 72 91.16 170.94 4267.96 4344.06 2365. 28 4392 .28 3152. 82 -2747 .01 -1547. 32 7205. 63 89.26 170.21 4267.85 4343.95 2397. 15 4424 .19 3177. 74 -2778 .49 -1542. 09 7237. 17 89.10 170.31 4268.30 4344.40 2428. 66 4455 .73 3202. 39 -2809. 57 -1536. 76 7267. 77 89.20 170.27 4268.75 4344.85 2459. 24 4486 .32 3226. 43 -2839 .73 -1531. 60 7299. 59 88.96 169.16 4269.26 4345.36 2491. 04 4518 .14 3251. 35 -2871. 03 -1525. 92 7331. 27 89.31 169.14 4269.74 4345.84 2522. 71 4549 .82 3276. 08 -2902. 14 -1519. 95 7363. 10 89.96 169.82 4269.94 4346.04 2554. 53 4581 .65 3301. 16 -2933. 44 -1514. 14 7394. 74 90.58 169.73 4269.79 4345.89 2586. 15 4613 .29 3326. 31 -2964. 57 -1508. 53 7426. 27 90.54 169.91 4269.49 4345.59 2617. 66 4644 .81 3351. 50 -2995. 61 -1502. 95 7458. 30 89.28 168.74 4269.54 4345.64 2649. 68 4676 .84 3377. 02 -3027. 08 -1497. 02 7490. 15 90.44 167.77 4269.61 4345.71 2681. 53 4708 .69 3402. 16 -3058. 26 -1490. 54 7520. 65 91.47 167.08 4269.11 4345.21 2712. 03 4739 .19 3426. 06 -3088. 03 -1483. 90 7552. 43 91.23 165.39 4268.36 4344.46 2743. 78 4770 .96 3450. 65 -3118. 88 -1476. 34 7584. 23 90.87 166.08 4267.77 4343.87 2775. 55 4802 .75 3475. 21 -3149. 70 -1468. 50 7615. 89 87.43 165.97 4268.24 4344.34 2807. 18 4834 .41 3499. 88 -3180. 41 -1460. 86 7647. 32 86.25 166.59 4269.98 4346.08 2838. 55 4865 .79 3524. 53 -3210. 90 -1453. 42 7679. 38 84.77 167.06 4272.49 4348.59 2870. 50 4897 .75 3549. 93 -3242. 02 -1446. 13 7711. 53 86.44 169.44 4274.95 4351.05 2902. 56 4929 .80 3575. 98 -3273. 40 -1439. 61 7743. 19 89.93 168.84 4275.95 4352.05 2934. 19 4961 .44 3602. 06 -3304. 47 -1433. 65 7774. 90 90.47 170.01 4275.84 4351.94 2965. 89 4993 .15 3628. 39 -3335. 64 -1427. 83 7806. 68 91.16 170.96 4275.39 4351.49 2997. 63 5024 .93 3655. 17 -3366. 98 -1422. 57 7840. 02 90.58 172.29 4274.88 4350.98 3030. 90 5058 .26 3683. 70 -3399 .96 -1417. 72 7871. 07 90.06 171.47 4274.71 4350.81 3061. 88 5089 .31 3710. 42 -3430. 70 -1413. 33 7901. 71 89.62 171.28 4274.80 4350.90 3092. 47 5119 .95 3736. 71 -3460 .99 -1408. 74 7934. 79 89.13 171.92 4275.16 4351.26 3125. 48 5153 .03 3765. 23 -3493 .71 -1403. 91 7965. 64 88.89 170.08 4275.69 4351.79 3156. 28 5183 .88 3791. 74 -3524. 18 -1399. 08 7997. 37 89.00 168.45 4276.27 4352.37 3188. 00 5215 .60 3818. 56 -3555. 35 -1393. 17 8026. 44 88.41 169.62 4276.93 4353.03 3217. 05 5244 .66 3843. 14 -3583 .88 -1387. 64 2.14 5975687.21 581536.48 N 70.34359585 W 149.33823056 5.22 5975656. 33 581543.17 N 70.34351129 W 149.33817897 1.47 5975625. 08 581549.58 N 70.34342571 W 149.33812970 1.69 5975593. 90 581556.02 N 70.34334034 W 149.33808021 1.41 5975563. 22 581562.21 N 70.34325633 W 149.33803266 1.30 5975533. 05 581568.31 N 70.34317374 W 149.33798585 9.47 5975502. 72 581574.94 N 70.34309066 W 149.33793472 6.10 5975472. 53 581581.41 N 70.34300800 W 149.33788489 8.38 5975441. 37 581588.28 N 70.34292268 W 149.33783188 7.69 5975410. 47 581595.34 N 70.34283804 W 149.33777729 3.34 5975379. 30 581601.91 N 70.34275269 W 149.3377 3.26 5975348. 92 581608.17 N 70.34266951 W 149.3376 7.87 5975318. 57 581613.86 N 70.34258642 W 149.33763510 6.38 5975287. 16 581619.44 N 70.34250044 W 149.33759265 0.60 5975256. 14 581625.12 N 70.34241552 W 149.33754930 0.35 5975226. 04 581630.61 N 70.34233314 W 149.33750738 3.57 5975194. 81 581636.64 N 70.34224762 W 149.33746123 1.11 5975163. 77 581642.94 N 70.34216263 W 149.33741279 2.96 5975132. 54 581649.10 N 70.34207714 W 149.33736558 1.98 5975101. 47 581655.06 N 70.34199208 W 149.33731996 0.58 5975070. 51 581660.98 N 70.34190731 W 149.33727469 5.37 5975039. 11 581667.26 N 70.34182133 W 149.33722650 4.75 5975008. 00 581674.09 N 70.34173614 W 149.33717384 4.06 5974978. 31 581681.06 N 70.34165484 W 149.33711991 5.37 5974947. 55 581688.96 N 70.34157054 W 149.33705852 2.45 5974916. 82 581697.13 N 70.34148636 W 149.33699490 10.87 5974886. 20 581705.11 N 70.34140246 W 149.33693283 4.24 5974855. 80 581712.89 N 70.34131918 W 149.33687239 4.84 5974824. 77 581720.52 N 70.34123416 W 149.3368' 9.03 5974793. 46 581727.40 N 70.34114844 W 149.3367 11.18 5974762. 46 581733.70 N 70.34106356 W 149.33671180 4.06 5974731. 36 581739.87 N 70.34097840 W 149.33666453 3.69 5974700. 08 581745.47 N 70.34089279 W 149.33662186 4.35 5974667. 16 581750.69 N 70.34080269 W 149.33658241 3.13 5974636. 48 581755.41 N 70.34071872 W 149.33654678 1.56 5974606. 24 581760.34 N 70.34063597 W 149.33650945 2.44 5974573. 58 581765.54 N 70.34054657 W 149.33647019 6.01 5974543. 17 581770.70 N 70.34046335 W 149.33643099 5.15 5974512. 07 581776.95 N 70.34037820 W 149.33638300 4.51 5974483. 61 581782.80 N 70.34030026 W 149.33633810 SurveyEditor Ver SP 2.1 Bld( doc4Ox_1OO) L-205\L-205 drilling\L-205\L-205 Generated 8/4/2008 11:08 AM Page 4 of 5 Comments Measured Inclination Azimuth Sub•Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depfh Section Departure ft de de ft ft ft ft (ft ft ft de 1100ft ftUS ftUS OUJO.O:f oo.UL 10/ .40 4L//. bU 43~3 .`JU 3L4`J.L`J 8091.17 88.24 167 .18 4278. 71 4354 .81 3281.75 8123.10 87.45 167 .99 4279. 91 4356 .01 3313.66 8155.36 86.97 168 .31 4281. 48 4357 .58 3345.88 8186.89 87.18 168 .21 4283. 09 4359 .19 3377.37 8218.84 85.01 166 .37 4285. 27 4361 .37 3409.24 8249.42 83.68 167 .23 4288. 28 4364 .38 3439.66 8280.85 86.29 167 .13 4291. 03 4367 .13 3470.97 8311.95 89.39 169 .97 4292. 20 4368 .30 3502.04 8342.54 88.66 169 .68 4292. 72 4368 .82 3532.61 8376.21 89.62 167 .94 4293. 23 4369 .33 3566.27 8407.41 89.68 168 .47 4293. 42 4369 .52 3597.47 8439.19 88.62 168 .05 4293. 89 4369. 99 3629.24 8471.36 90.03 166 .91 4294. 27 4370. 37 3661.41 8502.27 91.33 167 .01 4293. 90 4370. 00 3692.31 8534.49 92.19 165 .24 4292. 91 4369. 01 3724.50 8566.24 93.60 164 .06 4291. 31 4367. 41 3756.15 8596.80 93.18 162 .20 4289. 50 4365. 60 3786.55 8627.52 92.50 162 .17 4287. 98 4364. 08 3817.07 8658.46 91.81 162 .39 4286. 82 4362. 92 3847.83 8689.62 91.78 162 .05 4285. 84 4361. 94 3878.82 8720.57 90.95 161. 03 4285. 10 4361. 20 3909.56 8750.41 89.99 160. 49 4284. 86 4360. 96 3939.16 8782.75 89.48 161. 50 4285. 01 4361. 11 3971.26 8812.29 89.00 161. 60 4285. 40 4361. 50 4000.61 8842.79 89.58 162. 26 4285. 78 4361. 88 4030.94 8873.10 90.85 163. 15 4285. 66 4361. 76 4061.12 bZ/b.yV 3i5/V.33 -3b1J.4/ -"I3tSl.Z4 5309.37 3897.42 -3647.15 -1374.12 5341.28 3924.20 -3678.31 -1367.26 5373.50 3951.49 -3709.85 -1360.65 5404.99 3978.27 -3740.68 -1354.24 5436.86 4005.15 -3771.77 -1347.23 5467.29 4030.75 -3801.39 -1340.28 5498.60 4057.26 -3831.92 -1333.33 5529.67 4084.03 -3862.37 -1327.16 5560.26 4110.77 -3892.48 -1321.76 5593.92 4139.97 -3925.50 -1315.23 5625.12 4166.94 -3956.04 -1308.85 5656.90 4194.47 -3987.15 -1302.39 5689.07 4222.19 -4018.56 -1295.41 5719.97 4248.74 -4048.66 -1288.44 5752.18 4276.22 -4079.93 -1280.72 5783.89 4302.91 -4110.51 -1272.32 5814.39 4328.22 -4139.70 -1263.47 5845.07 4353.45 -4168.91 -1254.08 5875.99 4378.98 -4198.36 -1244.67 5907.14 4404.74 -4228.02 -1235.16 5938.08 4430.20 -4257.37 -1225.37 5967.92 4454.59 -4285.54 -1215.53 6000.26 4481.17 -4316.11 -1205.00 6029.79 4505.67 -4344.13 -1195.65 6060.29 4531.15 -4373.13 -1186.19 6090.60 4556.75 -4402.06 -1177.18 b.b4 ~y/44~Y.Uy 1.26 5974420.50 3.54 5974389.42 1.79 5974357.96 0.74 5974327.20 Jifl /t5`J.50 N /U.34UL73V5 W 14y.SSliLtStil:S 581797.02 N 70.34012742 W 149.33622830 581804.22 N 70.34004229 W 149.33617260 581811.19 N 70.33995615 W 149.33611887 581817.93 N 70.33987192 W 149.33606683 581825.29 N 70.33978699 W 149.33600990 581832.57 N 70.33970605 W 149.33595347 581839.85 N 70.33962266 W 149.33589706 581846.36 N 70.33953947 W 149.33584698 581852.09 N 70.33945723 W 149.33580310 581858.99 N 70.33936701 W 149.33575004 581865.70 N 70.33928358 W 149.3356 581872.51 N 70.33919859 W 149.3356 581879.83 N 70.33911281 W 149.33558913 581887.14 N 70.33903056 W 149.33553251 581895.21 N 70.33894515 W 149.33546981 581903.94 N 70.33886162 W 149.33540167 581913.12 N 70.33878187 W 149.33532980 581922.83 N 70.33870208 W 149.33525361 581932.56 N 70.33862162 W 149.33517722 581942.40 N 70.33854061 W 149.33510001 581952.52 N 70.33846043 W 149.33502049 581962.66 N 70.33838347 W 149.33494068 581973.53 N 70.33829995 W 149.33485519 581983.19 N 70.33822341 W 149.33477932 581992.97 N 70.33814420 W 149.33470253 582002.30 N 70.33806515 W 149.33462939 582008.43 N 70.33801049 W 149.33458142 582025.38 N 70.33785558 W 149.33444891 8.90 5974296.20 5.17 5974266.65 8.31 5974236.21 13.51 5974205.83 2.57 5974175.79 5.90 5974142.84 1.71 5974112.38 3.59 5974081.34 5.64 5974050.02 4.22 5974019.99 6.11 5973988.82 5.79 5973958.34 6.23 5973929.25 2.22 5973900.15 2.34 5973870.81 1.09 5973841.26 4.25 5973812.02 3.69 5973783.97 3.50 5973753.51 1.66 5973725.60 2.88 5973696.72 5.12 5973667.88 Last Survey 8893.97 91.60 163.94 4285.22 4361.32 4081.92 6111.46 4574.56 -4422.07 -1171.27 5.22 5973647.94 TD (Projected) 8953.00 91.60 163.94 4283.57 4359.67 4140.78 6170.47 4625.30 -4478.78 -1154.95 0.00 5973591.43 1593.74 Survey Type: Definitive Survey NOTES: GYD GC SS - (Gyrodata -gyro single shots -- Gyrodata gyro orientation surveys. Not to be run above 70 degrees inclination. ) MWD + IFR + MS - (In-field referenced MWD with mull-station analysis and correction applied in post-processing. Assumes a BHA sag correction is applied to enhance inclination accuracy. ) Les~al Description: Northing IYI fftUSl Eastins~ (Xl fftUSl Surface : 2361 FSL 3786 FEL S34 T12N R11E UM 5978082.32 583130.47 BHL : 3162 FSL 4950 FEL S3 T11N R11E UM 5973591.43 582025.38 r1 ~ J SurveyEditor Ver SP 2.1 Bld( doc40x_100) L-205\L-205 drilling\L-205\L-205 Generated 8/4/2008 11:08 AM Page 5 of 5 gp Page 1 of 1 Leak-Off Test Summary Legal Name: L-205 Common Name: L-205 Test Date Test Type 5/3/2007 LOT 6/3/2008 LOT Test Depth (TMD) Test Depth (ND) AMW Surface Pressure Leak Off Pressure (BHP) -- _ - 3,026.0 (ft) 2,739.0 (ft) 9.25 (ppg) 975 (psi) 2,291 (psi) 5,611.0 (ft) 4,465.0 (ft) 9.30 (ppg) 520 (psi) 2,677 (psi) EMW 16.10 (ppg) 11.54 (ppg) Printed: 7/23/2008 2:28:40 PM ~! ~ BP Operations Summary Report Pagel of18~ Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/25/2008 106:00 - 10:30 I 4.501 MOB I P I I PRE 10:30 - 00:00 13.501 MOB P I PRE 4/26/2008 100:00 - 07:00 I 7.001 MOB I P I I PRE 07:00 - 09:30 2.50 MOB P PRE 09:30 - 14:00 4.50 MOB P PRE 14:00 - 16:00 2.00 MOB P PRE 16:00 - 18:30 2.50 MOB P PRE 18:30 - 23:00 4.50 RIGU P PRE 23:00 - 00:00 1.00 RIGU P PRE 4/27/2008 00:00 - 03:00 3.00 RIGU P PRE 03:00 - 06:30 3.50 RIGU P PRE 06:30 - 07:30 1.00 RIGU P PRE 07:30 - 09:00 1.50 DRILL P SURF 09:00 - 10:00 1.00 DRILL P SURF 10:00 - 10:30 0.50 DRILL P SURF 10:30 - 11:00 0.50 DIVRTR P SURF 11:00 - 13:00 2.001 DRILL P SURF 13:00 - 16:00 3.00 DRILL P SURF 16:00 - 17:30 1.50 DRILL P SURF 17:30 - 22:30 5.00 DRILL P SURF 22:30 - 00:00 1.501 DRILL P I I SURF 4/28/2008 100:00 - 12:00 I 12.001 DRILL I P I I SURF Release rig from L-220i ~ 0600. Back pit module off of sub unit and to edge of pad. Back Sub unit off of well and and to edge of pad. Perform rig maintenence while standing by on pad prep to be completed for L-205. Pad leveled, Gas Lift Lines removed from neighboring wells, well houses removed as necessary. Spot line and install diverter on landing ring. Begin spotting rig mats around wellhead. Move and spot sub over well. Shim & level substructure. Set up Herculite berms around cellar and rig. Spot diverter lines into position and make up. Spot pit module into position. Spot Jumbo-Vac System and cuttings tank. Berm around pits. ACCEPT RIG -Rig accept rolled back to 25-Apr-2008 16:00 due to pad prep stand y time and diverter installation. Take on water for spud mud. Load pipeshed w/ 4" drillpipe and HWDP. Load bulk system and begin mixing spud mud. Continue loading shed w/ DP and strapping pipe. Continue mixing spud mud. Nipple up drilling riser. Finish preparing to PU drillpipe. PU 105 jts. 4" HT-40 drillpipe from pipeshed and rack back in derrick. Pressure test surface equipment to 3500 psi,good test. Pick up HWDP and stand back in derrick. -stage BHA components on pipeshed -bring stabilizers,bit,bit breaker, and UBHO sub to floor. Service top drive and install safety cable to link tilt hydraulic cylinder. Pick up stand w/jars,tag bottom at 70',rack back in derrick. Function test diverter system. Perform accumulator test. Witnessing of test waived by AOGCC rep Chuck Scheve. Witnessed by BP WSL Blair Neufeld & NAD TP Ronnie Dalton. Make up 13-1/2" bit to HWDP to drill out conductor and formation to accomodate BHA makeup. ""Note: Langham Crew held Pre-Spud meeting during their Pre-Tour meeting. Drill 13 1/2" hole to 312' md. Break out bit and stand back HWDP. Pick up and make up 13.5" directional BHA #1. Bit - MXL-1 X, 1.50 deg PDM. Orient motor with MWD. Tag up on fill at 247', Wash down to 276' md. PJSM. Rig up Gyro Data and Sperry wireline unit. **Note: Stewart Crew held Pre-Spud meeting during their Pre-Tour meeting. Drill 13.5" surface hole from 312' to 1301'. -Started kick-off ~ 300'. Gyro survey every stand to 1206'. -570 gpm, 1930 psi on, 1520 psi off. 80 rpm, 8k TO on, 5-7.Ok TO off. -PU - 78k, SO - 70k, RT - 72k, WOB - 35k. -Cuttings load normal,gravel,sand and clays, no downhole losses. Printed: 8/6/2008 12:18:26 PM gp Page 2 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To Hours ~ Task Code NPT Phase Description of Operations 4/28/2008 00:00 - 12:00 12.00 DRILL P SURF -vis 400+, mud weight in 9.2 ppg,mud weight out 9.4 ppg 12:00 - 16:30 4.50 DRILL P SURF Directionally drill 13 1/2" surface hole from 1,301'to 1,680' md. 560 gpm, 1,930 psi on, 1,520 psi off. 80 rpm, 8.Ok tq on, 2.1 k tq off. PU - 78k, SO - 70k, RWT - 72k, WOB - 5-35k. 16:30 - 17:30 1.00 DRILL P SURF Circulate bottoms up X 3 ~ 600 gpm, 1,758 psi, 100 rpm. 9.1 ppg MW 17:30 - 18:30 1.00 DRILL P SURF Wiper trip from 1,680' to 256'. Pulled OK until 35k over from 1,050 - 1,000 & 835'. No other overpulls. 18:30 - 20:15 1.75 DRILL P SURF Run in hole from 256' to 1,680'. Work pipe down without pumps from 980 - 1,050' md. Slackoffs of up to 30k, but able to fall past slowly. 20:15 - 00:00 3.75 DRILL P SURF Directionally drill 13 1/2" surface hole from 1,680' to 2,061' md. 575 gpm, 2,010 psi on, 1,823 psi off. 80 rpm, 6-7k tq on, 3k tq off. PU - 85k, SO - 75k, RWT - 75k, WOB - 25-30k. AST - 8.72 hrs, ART - 2.57 hrs 4/29/2008 00:00 - 05:30 5.50 DRILL P SURF Directionally drill 13 1/2" surface hole from 2,061' - TD ~ 3,036 m . 700 gpm, 3,025 psi on, 2,800 psi off. 80 rpm, 7k TQ on, 4k TO off PU - 108k, SO - 80k, RWT - 85k, WOB - 35k Hydrates breaking out at surface while drilling 2,000' - 2,200' and before to erin off. AST - 0.55 hrs, ART - 2.97 hrs 05:30 - 06:45 1.25 DRILL P SURF Rotate and reciprocate full stand while circlulating to clean up hole CBU x 3. 710 gpm, 3040 psi, 100 rpm, 4k TQ. Shakers cleaned up to only minor cuttings returns after 2.5 bottoms up. Shut down, monitor well -Static w/ occasional hydrates breaking out. 06:45 - 07:30 0.75 DRILL P SURF Lay down single joint & POH 3 stands from 3,036' and to 2,707' md. Encounter 35k+ overpull with slight swabbing. PU - 115k, SO 75k. 07:30 - 08:30 1.00 DRILL P SURF Backream 8 stands out of hole to 1,946' and Qust below base permafrost ~ 80 rpm, 235 gpm, 2565 psi, RTW - 80k. 08:30 - 09:45 1.25 DRILL P SURF Attempt to pull one stand dry at 1,946' but well swabbing. Continue backreaming to 922' md. 09:45 - 10:30 0.75 DRILL P SURF RIH from 922' to TD ~ 3,036' md. Tag up TD on depth w/ no fill. PU - 110k, SO - 85k. No tight spots seen. 10:30 - 12:30 2.00 DRILL P SURF CBU x 2.5 ~ TD, reciprocating pipe full stand. 700 gpm, 3100 psi, 100 rpm, 4.Ok TO, RTW - 92k 12:30 - 15:00 2.50 DRILL P SURF Shut down, monitor well -static. MW in 9.5, MW out 9.5. Pull out of hole with 13.5" drilling BHA #1 from 3,036' to 1,004' md. Pulled 20k over at 1,870' and and 30k over at 1,315'. Otherwise, no more than 5-7k overpulls. 15:00 - 17:30 2.50 DRILL P SURF PJSM. Lay down BHA #1. Stand back JAR stand. Bit grade: 1 -1 -SS-C-F-I-NO-TD. 17:30 - 19:30 2.00 DRILL P SURF Clean and clear rig floor of BHA equipment. 19:30 - 22:30 3.00 CASE P SURF PJSM. Make dummy run with 10 3/4" casing hanger and landing joint. Rig up to run casing. 22:30 - 00:00 1.50 CASE P SURF PJSM. Pick up and make up 10 3/4" 80' shoe track. Baker-Lok connections. Check floats - OK. 4/30/2008 00:00 - 09:30 9.50 CASE P SURF Check floats - OK. Continue running in hole with 10 3/4" 45.5# Printed: 8/6/2008 12:18:26 PM ~ N gp Page 3 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To ~ Hours Task Code NPT Phase Description of Operations 4/30/2008 00:00 - 09:30 9.50 CASE P SURF L-80 BTC casing to -3026' md. Filled every joint with casing fill-up tool topping off every 10 joints. Make up TO - 9,500 ft/Ibs. Used BOL 2000 NM pipe lubricant. Circulate down every 5 or 10 joints as needed ~ 3 bpm, 470 psi to keep displacement good. Halliburton 10 3/4" Float Shoe Bottom ~ 3026'. 2 Jts 10 3/4" 45.5# L-80 BTC Casing (#1- #2) Halliburton 10 3/4" Float Collar ~ 2941'. 2 Jts 10 3/4" 45.5# L-80 BTC Casing (#3- #4) 69 Jts 10 3/4" 45.5# L-80 BTC Casing (#5- #73) 10 3/4" 45.5# anger Pup Jt Casing hanger 10 3/4" Landing Ring to Rotary table - 28.85' Up weight = 160K, Down Weight = 110 Baker-Lock Shoe-track Jts #1-3 Bowsprings Centralizers: 1 on stop ring 5-10 ft. above shoe on jt #1 1 on stop ring 5-10 ft. above float collar 23 on collars on jts #3-25 25 Total Centralizers, 2 Stop Rings 09:30 - 10:30 1.00 CASE P SURF Laydown Frank's tool. Slowdown topdrive. Make up double plug cementing head. 10:30 - 12:30 2.00 CEMT P SURF Stage pumps up to 300 gpm, 406 psi ICP incrementally. Continue circulating and conditioning mud to a 60 viscosity and 18 YP ~ 300 gpm, 305 psi prior to switching to Dowell. Reci rocated casin 12 ft strokes. PU - 175k, SO - 119k. Held cementing PJSM while circulating. 12:30 - 14:30 2.00 CEMT P SURF Switch over to Dowell. Pump 5 bbls of water. Pressure test lines to 4,000 psi - OK. Pump 80 bbls of 10.0 ppg of MudPush II ~ 6.5 bpm, 180 psi ICP, 165 psi, FCP. Shut down and release bottom plug. Pump 468 bbls of 10.7 ppg DeepCrete lead cement ~ 6.5 bpm, 306 psi ICP, 336 psi FCP. Pump 83, bbls of 15.8 ppg Class "G" tail cement ~ 5.5 bpm, 485 psi ICP, 280 psi FCP. "Note: pacer o served at surface with 16 bbls tail cement pumped. Drop top plug and chase with 5 bbls H2O. Full returns throughout cement pumping. 14:30 - 15:30 1.00 CEMT P SURF Switch over to rig pumps and displace cement with total of 278 __ bbls 8.6 ppg seawater ~ 5 bpm, 112 psi ICP, 804 psi FCP. Reci rocated i e in 15' strokes until 175 bbls into dis lacement. Landed casing on ring due to low slack off weight. PU - 180k, SO - 75k prior to landing casing. Slow pump to 3 bpm 10 bbls prior to bumping plug, 695 psi ICP, 750 psi FCP. Bumped plug ~ 3,918 strokes (96.6% efc) with 3,500 psi. CIP ~ 15:31 hr. Returned 172 bbls of "Sidewalk Cement'. Full returns throughout job. 15:30 - 16:00 0.50 CEMT P SURF Pressure u to 3500 si for casin test. After 20 minutes, ressure bled down to 3,185 psi. Shut in and isolate any ossible surface a ui ment. um 0.26 to re ressure to 3500 si. Bled down 116 si in 7 minutes. Bleed off ressure and check oats. Printed: 8/6/2008 12:18:26 PM • gp Page 4 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date j From - To Hours Task Code NPT Phase Description of Operations 4/30/2008 16:00 - 19:30 3.50 CASE P SURF Laydown landing joint. Flush flowline and riser. Rig down casing and cementing equipment. Start nipple down of diverter lines. Clean out from under rotary table. 19:30 - 23:00 3.50 WHSUR P SURF Nipple down diverter riser and change out drilling nipple adapter from 20" to 16". Move surface hydril off of conductor and chain up in cellar. 23:00 - 00:00 1.00 WHSUR P SURF Bring casing head and tubing spool into cellar and nipple up same. Test metal to metal seals to 1,000 psi - 10 min - OK. 5/1/2008 00:00 - 04:30 4.50 BOPSU P SURF Nipple up BOPE. 04:30 - 13:30 9.00 CEMT P SURF Continue to clean pits in preparation for MOBM. clean cement out of flowline. Clear out from under drawworks. Load pippe shed w/ DP and strap same. 13:30 - 15:00 1.50 BOPSU P SURF Rig up to test BOPE. Install test plug w/ 4" test joint. 15:00 - 22:00 7.00 BOPSU P SURF Pressure test BOPE to 250 psi/3,500 psi for 5 min each test. 250 psi/2,500 psi on annular preventer for 5 min each. Perform Accumulator test. Test witnessed by BP WSLs M. Martyn, J. LeBlanc, & NAD TPs R. Dalton, G. Hoffman. AOGCC rep. John Crisp waived witness of test. 22:00 - 23:00 1.00 BOPSU P SURF RD from BOP testing. LD test joint. Install 9.9" ID wear bushing. 23:00 - 00:00 1.00 CASE P SURF Close blinds and ressure u on 10-3/4" casin for ressure test. Held 2000 psi for 5 minutes before brin in ressure u to 3500 si. Good test. Onl lost 30 si Burin test. 5/2/2008 00:00 - 01:00 1.00 DRILL P INTi MU BHA #2 - 9-7/8" MXL-1X milltooth bit, NB Stab, DC, Stab, tea DC, Jars. 01:00 - 02:30 1.50 DRILL P INT1 RIH on drillpipe to 2,728' md. 02:30 - 03:00 0.50 DRILL P INTi Transfer remaining stands from off drillers side rack into drillers side rack to enable access to steam table for cleaning. 03:00 - 03:15 0.25 DRILL P INTi Wash down and tag up on top of cement ~ 2,919' md. Slack off 10k to confirm. 03:15 - 03:45 0.50 DRILL P INTi CBU x 1.5 to flush wellbore. 718 gpm, 2090 psi. 03:45 - 04:30 0.75 DRILL P INT1 Clean out from under off-driller side pipe rack. 04:30 - 06:00 1.50 DRILL P INT1 Cut and slip drilling line. Service topdrive and crown. 06:00 - 09:00 3.00 DRILL N WAIT INT1 Mud planned for 9ES was sent to Doyon 15 due to a well control incident, wait on mud from mud plant. 09:00 - 13:30 4.50 DRILL N WAIT INT1 Waiting on mud from mud plant to arrive. Truck with mud broke down enroute. 13:30 - 15:30 2.00 DRILL P INT1 Take on MOBM into rig pit system. Pump 50 bbls used Versapro LS viscosified OBM spacer. Chase with new 9.3 ppg. MOBM ~ 7 BPM with 580 PSI. 15:30 - 16:15 0.75 DRILL P INT1 Drill cement from cement top at 2,922' through float collar and shoe found on depth at 2,940' & 3,026' and clean out rathole to 3,036' md. 450 gpm, 1360 psi, 80 rpm, 3-4k TO on, 25-30k WOB. 16:15 - 17:30 1.25 DRILL P INT1 CBU x 2.5 while rotating and reciprocating. 140 rpm, 690 gpm, 2800 psi, 2k TO off, PU - 95k, SO - 80k, RTW - 87k. 17:30 - 19:00 1.50 DRILL P INT1 Shut down monitor well -static. MW in 9.3 ppg, MW out 9.3 ppg. POH from 3,036' to top of BHA ~ 208' 19:00 - 20:15 1.25 DRILL P INT1 Lay down or rack back BHA #2 components as appropriate. Bit grade 0 - 0 - WT - A - E - I - NO -BHA. (Still had paint on it) 20:15 - 21:30 1.25 DRILL P INT1 PJSM w/ ri hands and corin ersonel. Perform practice run with core barrel handling joint. Lay down empty handling joint Printed: 8/6/2008 12:18:26 PM • M BP Operations Summary Report Page 5 of 18 Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code ~ NPT Phase Description of Operations 15/2/2008 120:15 - 21:30 1.251 DRILL P ~ INT1 21:30 - 00:00 I 2.501 DRILL I P I I INT1 5/3/2008 100:00 - 00:30 I 0.501 DRILL I P I I INTi 00:30 - 01:30 1.00 DRILL P INTi 01:30 - 02:00 0.50 DRILL P INT1 02:00 - 04:30 2.50 DRILL P INTi 04:30 - 05:00 0.50 DRILL P INT1 05:00 - 05:30 0.50 ~ DRILL P I INT1 05:30 - 06:00 0.50 DRILL P INT1 06:00 - 06:30 0.50 DRILL P INT1 06:30 - 11:45 I 5.251 DRILL I P I I INT1 11:45 - 12:30 0.75 DRILL P INTi 12:30 - 12:45 0.25 DRILL P INT1 12:45 - 15:00 2.25 DRILL P INT1 15:00 - 17:00 2.00 DRILL P INT1 17:00 - 20:00 3.00 DRILL P INT1 20:00 - 21:30 1.50 DRILL P INT1 21:30 - 00:00 2.50 DRILL P INTi 5/4/2008 00:00 - 02:00 2.00 DRILL P INTi 02:00 - 08:00 6.00 DRILL P INTi 08:00 - 09:00 1.00 DRILL P INTi 09:00 - 12:00 3.00 DRILL P INT1 to pipeshed 4 times while adjusting operations to ensure smooth handling from rig floor to pipe shed. Practice went well, ready for game time. Begin making up BHA #3 - 8-1/2" MXL-1X milltooth bit, Powerdrive Rotary Steerable, ARC, MWD, NM-DC, NM Stab, tea NM DC. Finish making up BHA #3 - 8-1/2" MXL-1X milltooth bit, Powerdrive Rotary Steerable, ARC, MWD, NM-DC, NM Stab, tea NM DC, CCV, Jars. Test powerdrive RSS - OK. RIH w/ BHA #3 to 1,031. Install ghost reamer. Shallow test MWD - 500 gpm, 1442 psi. RIH on 4" HT-40 DP 1x1 from pipeshed to 3,030' md. Perform ECD Baseline test 504 gpm, 2180 psi - ~ 0 rpm, CECD = 9.45, AECD = 9.54, correction factor -0.09, @ 120 rpm CECD = 9.45, AECD = 9.56, correction factor = -0.11 Directionally drill 20' of new hole to 3,056' md., 501 gpm, 2,147 psi on, 2,098 psi off. 133 rpm, 3.8k tq on, 2.9k tq off. PU - 104k, SO - 88k, RWT - 75k, WOB - 10k. CBU while rotating 135 rpm, & reciprocating 30'. 498 gpm, 2114 psi, 3.Ok TO. Pull back to casing shoe at 3,026' and and perform LOT to 16.10 ppg. Leakoff pressure = 975 psi, mud weight 9.25 ppg, TVD - 2,739'. Directionally drill 8.5" hole from 3,056' and to 3,287' md. 510 gpm, 2,170 psi on, 2,200 psi off. 140 rpm, 3.5k tq on, 3.Ok tq off. PU - 105k, SO - 83k, RWT - 95k, WOB - 5-10k. CECD - 9.35 ppg, AECD - 9.56 ppg, ART - 4.1 hrs CBU not rotating but reciprocating 80'. 445 gpm, 1555 psi. PU - 105k, SO - 85k. Monitor well -static. MW in = 9.3 ppg, MW out = 9.3 ppg, Pump dryjob. Not achieving necessary doglegs. POH for BHA from 3,270' to 257' md. LD 8-1/2" Rotary steerable BHA #3. Bit grade 0 - 0 - NO - A - E-I-NO-BHA. Make up BHA #4 - 9-7/8" MXL-1 X RR milltooth bit, 1.5 deg PDM, ARC, MWD, NM-DC, NM Stab, tea NM DC, 8.5" reamer, CCV, Jars. RIH w/ BHA #4 to 1,032'. Install 9.875" ghost reamer. Shallow test MWD - 500 gpm, 1277 psi. Continue RIH w/ BHA #4 to 3,025' md. Establish parameters. Ream down in 8.5" open hole from 3,036' to 3,287' md. 2-7k WOB, 540 gpm, 2349 psi, 60 rpm, 3.7k TO. Directionally drill 9.875" hole from 3,287' and to 3,709' md. 550 gpm, 2,391 psi on, 2,280 psi off. 60 rpm, 3-5k tq on, 3-4k tq off. PU - 110k, SO - 90k, RWT - 100k, WOB - 3-20k. Ream last stand at 60 rpm & 3.5-5k TO to work out high dogleg. Worked down to 7.93 deg/100. Directionally drill 9.875" hole from 3,541' to 3,891' md. 600 gpm, 2,860 psi on, 2,770 psi off. Printed: 8/6/2008 12:18:26 PM ~ ~ gp Page 6 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To j Hours Task Code NPT Phase Description of Operations i 5/4/2008 09:00 - 12:00 3.00 DRILL P INTi 60 rpm, 4-6k tq on, 4k tq off. PU - 120k, SO - 95k, RWT - 105k, WOB - 5-20k. CECD - 9.28ppg, AECD - 9.47ppg 10:30 -Started taking -7bph losses ~ _3,800' which slowly healed u and sto ed b 15:00. 24 bbls lost total. ` 12:00 - 00:00 12.00 DRILL P INT1 Directionally drill 9.875" hole from 3,891' to 4,340' md. 650 gpm, 3,418 psi on, 3,240 psi off. 60 rpm, 5-6k tq on, 5k tq off. PU - 130k, SO - 95k, RWT - 110k, WOB - 10-20k. CECD - 9.21 ppg, AECD - 9.61 ppg Ream stands as necessary to reduce high doglegs if encountered. AST - 7.72 hrs, ART - 2.22 hrs 5/5/2008 00:00 - 01:00 1.00 DRILL P INT1 CBU x 2.5 ~ 650 gpm, 3,360 psi, 60 rpm, 5.5k TO. 01:00 - 04:00 3.00 DRILL P INTi Shut down, monitor well -static. MW in 9.1, MW out 9.1, Pull 1 stand w/o overpull. Pump dry job. POH from TD ~ 4,430' and to top of BHA ~ 295' md. No more than 5k overpulls on trip out. 04:00 - 08:00 4.00 DRILL P INTi Lay down BHA #4 - LWD tools need to be laid down to shed for re-programming while breaking apart lower BHA. Bit grade - 1 -3-WT-A-E-1 -FC-BHA. 08:00 - 09:30 1.50 DRILL P INT1 MU 8.5" BHA #5 - 8.5" MXL-1 X, Powerdrive Rotary Steerable, ARC6, MWD. 09:30 - 12:00 2.50 DRILL N DFAL INTi Attempt to function test rotary steerable. Unable. Lay down powerdrive & ARC and change out to backup tools. 12:00 - 13:30 1.50 DRILL P INTi Function test new Powerdrive and ARC - OK. MU remaining BHA - NM Stab, tea DC, 8.5" Reamer, NM DC, Jars, 9.875" reamer. 13:30 - 16:30 3.00 DRILL P INTi RIH w/ BHA #5 to 4,340. Wash down last stand to bottom & Tag up on depth - no fill. 16:30 - 17:30 1.00 DRILL P INTi Directionally drill 8.5" hole from 4,340' to 4,360' md. 500 gpm, 2,781 psi on, 2,683 psi off. 120 rpm, 4k tq on, 3k tq off. PU - 135k, SO - 95k, RWT - 115k. CECD - 9.28 ppg, AECD - 9.47 ppg 17:30 - 18:30 1.00 DRILL P INT1 Shut down pump 2. Pulsation dampener leak into pump room. Troubleshoot & isolate pump 2 dampener. 18:30 - 19:30 1.00 DRILL P INT1 Directionally drill 8.5" hole from 4,360' to 4,420' md. 500 gpm, 2,781 psi on, 2,6 3 psi o . 120 rpm, 4k tq on, 3k tq off. PU - 135k, SO - 95k, RWT - 115k. CECD - 9.28 ppg, RECD - 9.47 ppg 19:30 - 20:30 1.00 DRILL P INT1 Take on 10.7ppg VersaCore mud to pits in preparation for mud swap. 20:30 - 21:30 1.00 DRILL P INT1 Dis lace over from to 10.7 VersaC r m ,Pump DP volume at 400 gpm and reduce rate to 250 gpm while mud moving up annulus to minimize ECD's on formation. 21:30 - 22:30 1.00 DRILL P INT1 Stage up pumps in 1 BPM increments from 3 BPM watching for losses. Only slight losses below 6 BPM and increasing to nearly 40 bph while pumping at drilling rate of 450 gpm. 22:30 - 00:00 1.50 DRILL P INT1 Directionally drill 8.5" hole from 4,420' to 4,460' md. 420 gpm, 2,273 psi on, 2,100 psi off. 120 rpm, 3-4k tq on, 3k tq off. Printed: 8/6/2008 12:18:26 PM gp Page 7 of 18 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 5/5/2008 122:30 - 00:00 I 1.501 DRILL P I INT1 5/6/2008 00:00 - 00:30 0.50 DRILL P INT1 00:30 - 01:30 1.00 DRILL P INT1 01:30 - 02:00 0.50 DRILL P INTi 02:00 - 05:00 3.00 DRILL P INTi 05:00 - 07:30 2.50 DRILL P INT1 07:30 - 09:00 1.50 DRILL P INTi 09:00 - 10:30 1.50 EVAL P INT1 10:30 - 15:00 4.50 EVAL P INT1 15:00 - 16:30 1.50 EVAL P INTi 16:30 - 19:00 2.50 EVAL N WAIT INT1 19:00 - 20:30 1.50 EVAL P INT1 20:30 - 22:15 1.75 EVAL P INT1 22:15 - 23:00 0.75 EVAL P INT1 23:00 - 23:30 0.50 EVAL P INT1 23:30 - 00:00 0.50 EVAL P INTi 5/7/2008 00:00 - 01:30 1.50 EVAL P INTi 01:30 - 02:00 I 0.501 EVAL I P I I INTi 02:00 - 12:30 I 10.501 EVAL I P I I INTi 12:30 - 14:30 2.00 EVAL P INT1 14:30 - 17:30 3.00 EVAL P INT1 PU - 135k, SO - 95k, RWT - 115k. CECD - 10.54 ppg, AECD - 10.78 ppg Losses slacked off to 3-4 bph after getting drilled solids into w II r Directional) Drill 8.5" hole from 4,460' to 4,475' and pausing to look at logs as required. Circulate bottoms up ~ 380 gpm. Only lost 3 bbls to formation while circulating. Shut down, monitor well -static. MW in 10.5, MW out - 10.5. Attempt to POH dry. Pulled 20k over and swabbing. Backream 2 stands out of hole to 4,340' and (9-7/8" hole). Pulling dry after that. only 5k overpulls. LD BHA #5 racking back collar stand and jar stand. Bit grade - 0-0-NO-A-E-I-NO-BHA. Clean and clear rig floor of all BHA components and handling tools. PJSM w/ Baker hands and all rig hands. Prepare tools for MU Baker M-Sand coring BHA. MU Baker coring BHA. -Coring Bit, Stabalizer, 30' core barrel, Stabalizer, 30' core barrel, Stabalizer, Float Sub, Circ Sub, 4 stands 4" HWDP, Jars, 4 stands 4" HWDP. RIH w/ M-Sand coring BHA to 3,000' Circulate and condition mud w/ BHA inside casing shoe while coordinating transportation for coring personel due to inclement weather conditions. Service top drive. RIH from casing shoe to 4,424' on stands of DP. MU last stand and precautionary wash to bottom 125 gpm, 15 rpm. RTW - 100k. Tag up ~ 4,474.6' md. Stand back last stand. Insert 2 ea spaceout DP pups - 4.87' & 14.97' and single joint. PU - 115k, SO - 90k Drop ball, circulate down, and begin coring operations. ore from 4,475' to 4,496' md. 180 gpm, 907 psi, 60 rpm, 3.7k TO. Continue coring operations. Core from 4,496' - 4,503' md. 180 gpm, 907 psi, 60 rpm, 3.7k TO. at 4,503' md, torque dropped off to -2.7k and ROP stopped. Gradually increase weight on bit from 5k up to as much as 15k. No torque response. Drop ball and pump down to shear core. Pull gradually up to 80k over in first 20' off of bottom before weight broke back over. Pull 30k over ~ 4,430 & 40k over at 4,410'. Take slow pump rates & Begin POH following pulling schedule. POH w/ M-Sand coring BHA from 4,506' to 2,335' md. 3-minutes per stand from TD to 3,763', 6-minutes per stand from 3,763' to 2,622', 9-minutes per stand from 2,622' to 1,577'. 12-minutes per stand from 1,577' to 538'. 15-minutes per stand from 538' to 75' and - (Top of BHA)'. No overpulls while POH. Break out top portions of coring BHA, break out bit and remove split ring. MU bit &RIH to top sub. Set slips & dog collar. Remove inner core barrel and lay down to pipeshed in core shuttle. MU new core barrel assembly and install into coring Printed: 8/6/2008 12:18:26 PM ~ ~ gp Page 8 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 5/7/2008 14:30 - 17:30 3.00 EVAL P INTi 17:30 - 19:30 2.00 EVAL P INTi 19:30 - 20:30 1.00 EVAL P INT1 20:30 - 21:45 1.25 EVAL P INT1 21:45 - 22:15 0.50 EVAL P INTi 22:15 - 23:00 0.751 EVAL P INTi 23:00 - 23:30 0.50 EVAL P INT1 23:30 - 00:00 0.50 EVAL P INTi 5/8/2008 00:00 - 00:45 0.751 EVAL P ~ INTi 00:45 - 01:00 I 0.251 EVAL I P I I INT1 01:00 - 02:00 1.00 EVAL P INT1 02:00 - 03:00 1.00 EVAL P INT1 03:00 - 07:30 ( 4.501 EVAL I P I I INT1 07:30 - 10:00 I 2.501 EVAL P INT1 10:00 - 13:30 3.50 EVAL P INTi 13:30 - 16:00 2.50 EVAL P INT1 16:00 - 18:45 2.75 EVAL P INT1 19:30 - 20:30 1.00 EVAL P INT1 BHA. Make up remainder of coring BHA. RIH w/ M-Sand coring assembly number 2 from top BHA to 2,995' inside casing shoe. CBU -stage up pumps tp 130 gpm. ICP 410 psi, FCP 380 psi. RIH to 4,425' and w/ M-Sand BHA #2 Start taking weight ~ _4,425' md. MU blower hose and screw into pipe. Take parameters. Pumps off PU - 115k, SO - 80k. Pumps on PU - 110k, SO - 90k, RTW - 100k. Wash down 200 gpm, 730 psi, 20 rpm, 3k TO. Saw Torque increase 500-1000 ft-Ibs ~ _4,410' and and stay there until _4,440' md. Tag up on depth ~ 4,503' md. Lay down single joint, MU 'kelly stand'. Wash down and begin coring operations. Core from 4,503' and to 4,514' md. 200 gpm, 1000 psi on, 750 psi off 50 rpm, 3.8k TO on, 3.Ok TO off PU - 110k, SO - 90k, RTW - 100k, WOB - 0-5k Continue coring operations. Core from 4,514' and to 4,535' md. 200 gpm, 1000 psi on, 750 psi off 50 rpm, 3.8-4.3k TO on, 3.Ok TO off PU - 110k, SO - 90k, RTW - 100k, WOB - 0-5k Drop ball from drop ball sub, pump down ~ 200 gpm. Pressure went to 1300 psi after landed. PU to first tool joint, break and drop dart for circ sub. Pressure fell off from 1320 psi to 580 psi ~ 200 gpm. Circulate bottoms up through circ sub ~ 400 gpm, 1830 psi. No losses during circulation after pumps up to speed. Pump dryjob. Blow down topdrive. POH to 4,473' md. PU - 125k. Pull tight ~ 4,473' and bit depth - 4,405' and top stabalizer depth. Pull 40k over and pipe moving slowly. Work pipe slowly up to 4,412' bit depth before getting back to normal upweight of 120k. POH w/ M-Sand coring BHA #2 from 4,412' to 538' md. 1.5-minutes per stand from TD to 2,812', 3-minutes per stand from 2,812' to 816', 6-minutes per stand from 816' to 259'. 12-minutes per stand from 259' to 167'. 24-minutes per stand from 167' -surface. No other overpulls while POH. Break out top portions of coring BHA, break out bit and remove split ring. MU bit &RIH to top sub. Set slips & dog collar. Remove inner core barrel and lay down to pipeshed in core shuttle. Install new core barrells into coring BHA in preparation for Core run #3 and rack back in derrick. MU hole opening BHA - 8.5" millltooth bit, NB Stab, 8.5" ghost reamer, tea NM DC, 9.875" ghost reamer, CCV, Jars. RIH dry with BHA to 4,341' md. Taking 5 - 10k weight ~ 4,341' md. Screw in and ream down from 4,341' - 4,414' md. Tag top of 8.5" hole with 9.875" reamer when bit ~ 4,414' Ream down from 4,414' - 4,426' and ~ -15fph ROP. PU - 110k, SO - 80k, RTW - 102k. Printed: 8/6/2008 12:18:26 PM gp Page 9 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: i Date !; From - To Hours Task ;Code NPT Phase Description of Operations 5/8/2008 19:30 - 20:30 1.00 EVAL P INTi 20:30 - 21:30 1.00 EVAL P INTi 21:30 - 00:00 2.50 EVAL P INT1 5/9/2008 00:00 - 01:30 1.50 EVAL P INTi 01:30 - 02:30 1.00 EVAL P INT1 02:30 - 04:00 1.50 EVAL P INT1 04:00 - 05:30 1.50 EVAL P INT1 05:30 - 06:00 0.50 EVAL P INTi 06:00 - 07:00 1.00 EVAL P INT1 07:00 - 07:30 0.50 EVAL P INT1 07:30 - 08:30 1.00 EVAL P INT1 08:30 - 09:00 ( 0.501 EVAL P INT1 09:00 - 12:30 3.50 EVAL P INTi 12:30 - 14:00 1.50 EVAL P INTi 14:00 - 15:00 1.00 EVAL P INTi 15:00 - 16:00 1.00 EVAL P INTi 16:00 - 16:30 0.50 EVAL P INT1 16:30 - 17:30 1.00 EVAL P INT1 17:30 - 18:00 0.50 EVAL P INT1 18:00 - 19:30 1.501 EVAL P INTi 19:30 - 20:30 1.00 EVAL P INTi 20:30 - 21:00 0.50 EVAL P INT1 21:00 - 22:30 1.50 EVAL P INT1 22:30 - 00:00 1.50 EVAL P INT1 5/10/2008 00:00 - 00:30 0.50 EVAL P INT1 00:30 - 03:00 2.50 EVAL P INTi 03:00 - 04:00 1.00 EVAL P INTi 04:00 - 05:00 1.00 EVAL P INTi 05:00 - 06:00 1.00 EVAL P INT1 320 gpm, 1300 psi, 120 rpm, 3.6k TO off, 2-12k TO on. Torque fell off and went to 3.7k while increasing bit weight without further gain in BOP. Pick up off bottom, circulate and reciprocate. Consult with town engineer. Decide to trip for hole opener. POH with BHA from 4,414' to 1,462' md. POH w/ cleanout BHA to 140' md. LD 9-7/8" ghost reamer & 8-1/2" bit BHA. BHA in gauge. MU hole opener BHA - 9-7/8" bull nose hole opener, NB Stab, tea NM DC, RIH w/ BHA #9 to 3,035' md. Circulate 100 bbls to roll mud. Stage pumps up to 406 gpm, 1520 psi. Run in hole with 9 7/8" hole opener assembly from 3035' to 4253'. Break circulation & wash from 4253' to 4355',300 GPM ~ 1080 psi. Open hole from 8 1/2" to 9 7/8", 4355' to 4455'. -570 GPM X3340 psi -Torque off bottom 3k on bottom 4-6k -Up wt. 110k,down wt 85k, rotating wt 105k -Mud wt. in and out 106 ppg Circulate 1/2 bottoms up strokes 570 GPM ~ 3250 psi. -Rack back stand and record slow pump rates. -Monitor well,static. POOH from 4427' to surface, Mud wt in and out 10.6 ppg. Lay down hole opener and make up 8 1/2" bit. -Run in hole to 3015' Cut and slip 104' of drilling line. Service top drive -Grease & inspect drawworks. -Service Crown. Stage pumps up to 600 GPM C>~ 2600 psi to shear mud in hole. -Circulate 160 bbls. Run in hole from 3015' to 4467'. Wash to bottom from 4467' to 4535'. -385 GPM ~ 1780 psi -Final -40' required rotary to wash down. Pull back into 9 7/8" hole and circulate bottoms up. -425 GPM ~ 1970 psi. Monitor well,static Mud wt in and out 10.7 ppg. POH from 4437' to 2920'. Hole taking correct displacement. Pump dry job and blow down surface equipment. POH from 2920' to 919'. Hole taking correct displacement.. Rack back BHA. Clean rig floor after pulling out of hole. Run in hole with Core assembly #3 to 3303'. Circulate bottoms up at shoe, 200 GPM ~ 575 psi Run in hole from 3303' to 4400'. Break circulation,wash to bottom. -Pull back and rack back stand. -Drop ball Printetl: 8/6/2008 12:18:26 PM { gp Page 10 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To Hours i Task Code NPT Phase Description of Operations 15/10/2008 105:00 - 06:00 I 1.001 EVAL I P I I INTi 06:00 - 08:00 I 2.00 I EVAL I P I I INTi 08:00 - 19:00 I 11.001 EVAL I P I I INT1 19:00 - 19:30 0.50 EVAL P INT1 19:30 - 22:30 3.00 EVAL P INT1 22:30 - 23:00 0.50 EVAL P INT1 23:00 - 00:00 1.00 EVAL P INTi 5/11/2008 00:00 - 02:00 2.00 EVAL P INT1 02:00 - 03:00 1.00 EVAL P INTi 03:00 - 05:00 2.00 EVAL P INTi 05:00 - 05:30 0.50 EVAL P INTi 05:30 - 06:30 1.00 EVAL P INTi 06:30 - 08:00 1.50 EVAL P INTi 08:00 - 10:30 I 2.501 EVAL I P I I INT1 10:30 - 12:30 2.001 EVAL P INTi 12:30 - 14:00 I 1.501 EVAL I P I I INT1 14:00 - 19:30 5.501 EVAL ~ P ~ ~ INTi 19:30 - 22:30 I 3.001 EVAL I P I I INT1 -Pick up 15' space out pup and Kelly stand. -Pump ball to seat -Record slow pump rates. Core 60' from 4535' to 4595' -WOB 3k, RPM 50, Torque off bottom 3k,on bottom 4-5k -200 GPM ~ 900 psi -Drop ball and pump to seat 200 GPM ~ 800 psi. -Pressure up to 1420 psi to activate catcher. Rack back kelly stand and lay down 15' pup joint. -Pump dry job -Monitor well,static. -Mud wt in and out 10.8 ppg. -POH as per tripping schedule to 76' Clean rig floor. PJSM with crews and coring personnel on recovering core. -Break out bit and remove split ring. -Remove innner barrel. -Split innner barrel and lay down w/skate into pipeshed. Clean floor of coring fluid. Make up core barrel for run #4. -Make up additional 30' barrel. -Insert innner barrel. Make up core #4 BHA to 90'. Clear and clean rig floor prior to run in hole. Run in hole with coring assembly to 3025'. Circulate 140 bbls at the shoe, 250 GPM ~ 780 psi Run in hole with coring assembly 3025' to 4454' Break circulation,wash to bottom x_4595'. -Rack back stand,pick up 15' space-out pup. Drop ball & pump to seat, 200 GPM ~ 1050 psi. -Pressure up to activate coring assembly. -Cut Core #4 50 RPM,3k torque off bottom,4-6k on bottom. -200 GPM X1050 psi, WOB 5-10k. -Drop ball, pump down, 1,660 psi to activate core catcher. -Up wt 110k,down wt 85k,rotating wt 100k -Mud wt in and out 10.8 ppg. POH from 4675' 4359'. -Pull 80k over ~ 4589' -Backream from 4595' to 4359' -200 GPM ~ 1480 psi. 25 RPM. Drop dart & pump to seat to open circulating sub,155 GPM 1120 psi. -Stage pumps up to 625 GPM ~ 3525 psi -Circulate bottoms up -Monitor well,static -Mud wt in and out 10.8 ppg. -Pump dryjob,remove blower hose. POH from 4359' to 105' -Break out circ. sub and retrieve dart. -Clean floor of oil base coring fluid. Break out bit and remove split ring. -Make up bit and run back in to top sub. -Remove innner barrel and lav down to pipeshed. Printed: 8/6/2008 12:18:26 PM gp Page 11 of 18 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 5/11/2008 19:30 - 22:30 3.00 EVAL P INT1 22:30 - 23:30 1.00 EVAL P INTi 23:30 - 00:00 0.50 EVAL P INT1 5/12/2008 00:00 - 02:30 2.50 EVAL P INTi 02:30 - 03:00 0.50 EVAL P INT1 03:00 - 04:00 1.00 EVAL P INTi 04:00 - 04:30 0.50 EVAL P INTi 04:30 - 06:00 1.50 EVAL P INTi 06:00 - 08:00 2.00 EVAL P INT1 08:00 - 10:00 I 2.001 EVAL I P I I INT1 10:00 - 15:30 5.50 EVAL P INT1 15:30 - 18:00 2.50 EVAL P INTi 18:00 - 19:00 1.00 EVAL P INTi 19:00 - 19:30 0.50 EVAL P INT1 19:30 - 22:00 2.50 EVAL P INTi 22:00 - 23:00 1.00 EVAL P INT1 23:00 - 00:00 1.00 EVAL P INT1 5/13/2008 00:00 - 01:00 1.00 EVAL P INT1 01:00 - 02:00 1.00 EVAL P INTi 02:00 - 03:30 1.50 EVAL P INT1 03:30 - 04:00 I 0.501 EVAL I P I I INT1 -Break and lay down 30' of outer barrel. Make up innner barrel and bit. Clean and clear rig floor prior to running in with core #5. Run in hole from 79' to 3006' -Up wt 87k down wt 75k Service top drive Break circulation stage pumps to 200 GPM ~ 570 psi. -Hole took 13 bbl loss prior to circulating. -Losses while circulating 1/2 bbl per hour. Run in hole with coring assembly 3006' to 4517'. Break circulation,wash to bottom ~ 4675'. -Rack back stand,pick up single & 5' space-out pup. Drop ball to divert from inner barrel to outer barrel, pressure increase from 760 psi to 940 psi. -Record slow pump rates -Core from 4674' to 4734'. -Up wt 120k,dovrn wt 90k,rotating wt 105k. -200 GPM C~3 1030 psi off bottom,1170 psi on bottom. -WOB 3-5k,torque 3k off bottom & 4-5k on bottom. Mud wt in and out 10.7 ppg, Vis = 170. Drop ball to activate catcher. -Pump to seat at 180 GPM ~ 890 psi. -Pressure up to 1300 psi. -Back ream from 4734' to 4423' -Open circ sub,pump dry job. POH as per tripping schedule 4423' to 76'. PJSM with core Iab,Baker coring and crews. -Retrieve ball,change out circ. sub. -Break out bit,remove split ring. -Install core cap and run in to top sub. -Remove inner barrel and lay down to pipeshed.. Make up inner barrels & top sub. -Remove core cap and make up bit. - Run in to 70'. Clean and clear rig floor. Run in hole from 70' to 3002'. Circulate at shoe. -Stage pumps up to 250 GPM C~ 700 psi. -No losses. Service top drive. Run in hole from 3002' to 4612' Wash to bottom C~ 4735' -200 GPM ~ 850 psi -No space out pups required,drop ball. -Pump ball to seat 200 psi pressure increase. -Record slow pump rates Core (#6) from 4735' to 4795'. -PU - 117k, SO - 94k, RWT - 105k. -200 GPM ~ 990 psi off bottom 1120 psi on bottom -WOB 3-6k, 50 RPM, Torque off bottom 3k on bottom 4-6k -Mud wt in and out 10.6 ppg. Drop ball and pump on to seat. -200 GPM ~ 960 psi, pressured up to 1440 psi to activate Printed: 8/6/2008 12:18:26 PM ~ ~ gP Page 12 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: 1 Date From - To Hours Task Code NPT ! Phase Description of Operations 5/13/2008 03:30 - 04:00 0.50 EVAL P INTi catcher. 04:00 - 05:30 1.50 EVAL P INT1 POH backreaming from 4795' to 4423' 05:30 - 06:00 0.50 EVAL P INT1 06:00 - 11:00 5.00 EVAL P INT1 11:00 - 13:30 2.50 EVAL P INT1 13:30 - 14:30 I 1.001 EVAL I P I I INT1 14:30 - 15:00 0.50 EVAL P INT1 15:00 - 16:30 1.50 EVAL P INT1 16:30 - 17:30 1.00 EVAL P INT1 17:30 - 18:00 0.50 EVAL P INTi 18:00 - 20:00 2.00 EVAL P INTi 20:00 - 21:30 1.50 EVAL P INT1 21:30 - 23:00 I 1.501 EVAL I P I I INTi 23:00 - 23:30 I 0.501 EVAL I P I I INT1 23:30 - 00:00 0.50 ~ EVAL P ~ INT1 5/14/2008 100:00 - 01:00 1.00 EVAL ~ P INT1 01:00 - 01:30 I 0.501 EVAL P INTi 01:30 - 06:00 4.50 EVAL P INT1 06:00 - 08:30 2.50 EVAL P INTi -200 GPM ~ 1560 psi, 25 RPM ~ 3-4 k torque. -No overpull -Open circ sub and pump out one stand,450 GPM ~ 2200 psi. Pump dry job -Blow down top drive,remove blower hose. POH as per tripping schedule 4423' to 76'. PJSM with core Iab,Baker coring and crews. -Retrieve ball,change out circ. sub. -Break out bit,remove split ring. -Install core cap and run in to top sub. -Remove inner barrel and lay down to pipeshed. Make up inner arre s & top su . -Remove core cap and make up bit. - Run in to 76'. Clean and clear rig floor. Run in hole from 76' to 3002'. -Up wt 80k down wt 68k Circulate at shoe. -Stage pumps up to 250 GPM ~ 725 psi. Service top drive. Run in hole from 3002' to 4613'. Wash to bottom ~ 4795' -180 GPM ~ 800 psi -Rack back stand, PU 2 singles required for space out, drop ball. -Pump ball to seat 200 psi pressure increase. -Record slow pump rates Core (#7) from 4795' to 4855'. -PU - 122k, SO - 93k, RWT - 105k. -200 GPM ~ 990 psi off bottom 1120 psi on bottom -WOB 4-6k, 50 RPM, Torque off bottom 3k on bottom 4-6k -Mud wt in and out 10.6 ppg. Drop ball and pump on to seat. -180 GPM ~ 860 psi, pressured up to 1370 psi to activate catcher. POH backreaming from 4855' to 4613' -200 GPM ~ 1460 psi, 25 RPM ~ 2-3k torque. -No overpull 'Lost total of 7 bbls of coring fluid for the day. (During trips only) Continue POH with core #7, backreaming from 4613' to 4424' -200 GPM ~ 1460 psi, 25 RPM ~ 2-3k torque. -No overpull -Open circ sub and pump out one stand to 4329' l~ 500 GPM ~ 2600 psi. -No overpull Monitor well -static. -Pump dry job -Blow down top drive, remove blower hose. POH as per tripping schedule 4329' to 76'. PJSM with core Iab,Baker coring and crews. Printed: 8/6/2008 12:18:26 PM gp Page 13 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date .From - To Hours Task Code NPT Phase ~ Description of Operations 5/14/2008 106:00 - 08:30 2.501 EVAL P INT1 -Retrieve ball,change out circ. sub 08:30 - 10:00 1.501 EVAL P INT1 10:00 - 14:30 4.50 EVAL P INTi 14:30 - 15:30 1.00 EVAL P INT1 15:30 - 00:00 8.50 EVAL P INTi 5/15/2008 100:00 - 01:00 1.001 EVAL P I I INT1 01:00 - 01:30 0.50 EVAL P INTi 01:30 - 11:00 9.50 EVAL N RREP INT1 11:00 - 14:30 3.501 EVAL P INT1 14:30 - 15:30 I 1.001 EVAL I P I I INTi 15:30 - 16:30 1.00 EVAL P INT1 16:30 - 17:00 0.50 EVAL P INT1 17:00 - 19:00 0.00 EVAL P INT1 19:00 - 20:00 1.00 EVAL P INTi 20:00 - 21:00 1.00 EVAL P INTi 21:00 - 21:30 0.50 EVAL P INTi 21:30 - 22:00 0.50 EVAL P INT1 22:00 - 22:30 0.50 EVAL P INT1 -Break out bit,remove split ring. -Install core cap and run in to top sub. -Remove inner barrel and lav down to pipeshed Make up inner barrels & top sub. -Remove core cap and make up bit. -Run in to 76'. -Rack back coring assembly. Clear and clean rig floor. Prepare BOP stack for BOPE test with water. Pull wear bushing, set test plug. -Rig up 4" test joint and test equipment. Test BOPE with 4" test joint. -250 psi low, 3500 psi high. -Each test 5 minutes each. -Accumulator drawdown test. -Test witnessed by AOGCC rep Jeff Jones, BP WSLs Tom Anglen, Robert French, NAD TPs Mark Ashley, Tim Leigh. -Trouble shoot and attempt tests on air actuated IBOP topdrive valve and Annular preventer without success. -Rig down 4" test equipment and change over to 3.5" test equipment. -Start ram tests with 3.5" test joint. "No mud losses for the day. Continue testing rams with 3.5" test joint. -250 psi low, 3500 psi high. -Hold each test for 5 minutes each. Rig down test equipment. Leave blind rams closed. Change out air actuated IBOP valve on topdrive. Trouble shoot annular preventer hydraulic problem. -Repair 4-way control valve on accumulator. Rig up to test with 4" test joint. Test annular preventer to 250 psi low, 3500 psi high for 5 minutes each test - OK. -Change out to 3.5" test joint. Test upper, lower rams, and annular preventer to 250 psi low, 3500 psi high for 5 minutes each test - OK. Test witnessed by BP WSL Tom Anglen and NAD TP Mark Ashley. Rig down test equipment. Suck out water from BOP stack. Blowdown lines. Clean rig floor. Pick up core assembly and inspect coring bit. Run in hole with coring assembly from 76' to 3002'. -PU - 82k, SO - 69k. Install blower hose. Circulate ~ shoe. -250 gpm, 750 psi, 20 rpm, 1.7k TO. -PU - 87k, SO - 74k, RWT - 78k. Run in hole from 3002' to 4164'. Taking weight. Wash and ream from 4141' to 4325' taking steady 5k WOB. -200 gpm, 725 psi, 25 rpm, 2.7k TO. Backream from 4325' to 4141'. MW - 10.5 ppg in and out. POH for 9 7/8" hole opener from 4141' to 4047. No drag. -Monitor well -static. Printed: 8/6/2008 12:18:26 PM gP Page 14 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 5/15/2008 22:00 - 22:30 0.50 EVAL P INTi 22:30 - 23:30 1.00 EVAL P INT1 23:30 - 00:00 0.50 EVAL P INTi 5/16/2008 00:00 - 02:00 2.00 EVAL P INT1 02:00 - 03:00 1.00 EVAL P INT1 03:00 - 04:00 1.00 EVAL P INTi 04:00 - 05:00 1.00 EVAL P INT1 05:00 - 06:00 1.00 EVAL P INT1 06:00 - 07:00 1.00 EVAL P INT1 07:00 - 07:30 0.50 EVAL P INT1 07:30 - 08:00 0.50 EVAL P INT1 08:00 - 08:30 0.50 EVAL P INT1 08:30 - 14:00 5.50 EVAL P INT1 14:00 - 16:00 I 2.001 EVAL I P I I INTi 16:00 - 16:30 0.50 EVAL P INT1 16:30 - 17:00 0.50 EVAL P INT1 17:00 - 17:30 0.50 EVAL P INTi 17:30 - 19:00 1.50 EVAL P INT1 19:00 - 20:00 1.00 EVAL P INT1 20:00 - 21:30 1.50 EVAL P INT1 21:30 - 00:00 2.50 EVAL P INT1 5/17/2008 00:00 - 00:30 0.50 EVAL P INTi 00:30 - 01:15 0.75 EVAL P INT1 01:15 - 02:30 1.25 EVAL P INT1 02:30 - 03:30 I 1.001 EVAL I P I I INTi 03:30 - 04:00 I 0.501 EVAL I P I I INT1 -Pump dry job. POH from 4047' to shoe. Monitor well -static. POH from 3025' to 2623'. Continue POH with core assembly #16. -Stand back core assembly. Clear and clean rig floor. Pick up and make up hole opener assembly #17 to 925. Run in hole from 925' to 3020'. Cut and slip 92' drilling line. Service topdrive, crown, and drawworks. Circulate ~ shoe. -500 gpm, 2100 psi. -60 rpm, 1.9k TO. -PU - 90k, SO - 75k. Run in hole from 3020' to 4346'. Precautionary wash from 4346' to 4454'. -500 gpm, 2600 psi, 120 rpm, 3k TO. Ooen 8 1/2" hole to 9 7/8" from 4454' to 4815'.. -500 gpm, 2495 psi off, 2525 psi on. -120 rpm, 3.1 k TO off, 4.5k TO on. -PU - 122k, SO - 90k, RWT - 107k, WOB - 10k. Circulate 15 minutes prior to connections. Circulate 3 bottoms up. -500 gpm, 2520 psi. -120 rpm, 4.1 k TO. -MW - 10.5 ppg in and out. -Monitor well -static. POH from 4815' to 4356'. -PU - 130k, SO - 96k. Monitor well -static. -Pump dry job. POH from 4356' to 3020'. -Monitor well -static. POH from 3020' to 95'. Laydown hole opener assembly BHA #17. Clear and clean rig floor. Pick up coring assembly, BHA #18 and run in hole to 3003'. '5 bbl coring fluid loss for the day. Circulate at shoe. -255 gpm, 655 psi. Run in hole from 3003' to 4708'. Wash to bottom ~ 4855' -250 GPM ~ 930 psi -PU 15 ft pup joitn required for space out, drop ball. -Pump ball to seat 150 psi pressure increase. -Record slow pump rates Core (#81 from 48~F' to dsn~' -PU - 125k, SO - 95k, RWT - 106k. -200 GPM ~ 890 psi off bottom 975 psi on bottom -WOB 5k, 55 RPM, Torque off bottom 4k on bottom 7k -Mud wt in and out 10.5 ppg. Drop ball and pump on to seat. -200 GPM ~ 835 psi, pressured up to 1290 psi to activate Printed: 8/6/2008 12:18:26 PM • • gp Page 15 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: i Date From - To Hours Task Code NPT Phase Description of Operations 5/17/2008 03:30 - 04:00 0.50 EVAL P INT1 catcher. 04:00 - 04:30 0.50 EVAL P INT1 POH backreaming from 4905' to 4708' -200 GPM ~ 1215 psi, 20 RPM ~ 4k torque. -No overpull, one 10k torque spike ~ 4777'. -Open circ sub and pump out one stand to 4613' -425 GPM ~ 1940 psi. 04:30 - 05:00 0.50 EVAL P INT1 Monitor well -static. -Pump dry job -Blow down top drive, remove blower hose. 05:00 - 11:00 6.00 EVAL P INT1 POH as per tripping schedule 4613' to 76'. 11:00 - 13:00 2.00 EVAL P INT1 PJSM with core Iab,Baker coring and crews. -Retrieve ball, change out circ. sub. -Break out bit, remove split ring. -Install core cap and run in to top sub. -Remove inner barrel and la down to i eshed. 13:00 - 14:00 1.00 EVAL P INT1 Make up inner barrels & top sub. -Remove core cap and make up bit. - Run in to 76'. 14:00 - 14:30 0.50 EVAL P INT1 Clean and clear rig floor. 14:30 - 16:30 2.00 EVAL P INT1 Run in hole from 76' to 3003'. -Up wt 86k down wt 72k 16:30 - 17:00 0.50 EVAL P INT1 Circulate at shoe. -Stage pumps up to 250 GPM ~ 745 psi. -25 rpm, 3.6k tq. 17:00 - 18:00 1.00 EVAL P INT1 Run in hole from 3002' to 4707. 18:00 - 19:30 1.50 EVAL P INTi Wash to bottom ~ 4905' -200 GPM @ 860 psi -Pump ball to seat, 120 psi pressure increase. -Record slow pump rates 19:30 - 21:00 1.50 EVAL P INTi Core #9 from 4905' to 4965'. -PU - 128k, SO - 98k, RWT - 108k. -200 GPM C~3 925 psi off bottom 960 psi on bottom -WOB 4-7k, 50 RPM, Torque off bottom 3.7k on bottom 5.ik -Mud wt in and out 10.6 ppg. 21:00 - 21:30 0.50 EVAL P INT1 Drop ball and pump on to seat. -180 GPM C~ 790 psi, pressured up to 1310 psi to activate catcher. 21:30 - 23:00 1.50 EVAL P INT1 POH backreaming from 4965' to 4798' -210 GPM ~ 1260 psi, 20 RPM ~ 4.3k torque. -No overpull -Open circ sub and backream 1 stand to 4702' -445 GPM ~ 2200 psi, 25 rpm ~ 4k tq. Attempt to POH dry. 25k drag. -Backream 2 more stands to 4511'. -445 GPM ~ 2110 psi, 25 rpm ~ 3.6k tq. -POH dry 2 stands to 4329'. 23:00 - 23:30 0.50 EVAL P INT1 Monitor well -static. -Pump dry job -Blow down top drive, remove blower hose. -MW 10.6 ppg in and out. 23:30 - 00:00 0.50 EVAL P INT1 POH as per tripping schedule 4329' to 4235'. 5/18/2008 00:00 - 05:00 5.00 EVAL P INT1 POH as per tripping schedule 4329' to 76'. 05:00 - 08:00 3.00 EVAL P INTi PJSM with core Iab,Baker coring and crews. Printed: 8/6/2008 12:18:26 PM • gp Page 16 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: a Date ~ From - To Hours Task ~ Code NPT Phase Description of Operations 5/18/2008 05:00 - 08:00 3.00 EVAL P INT1 -Retrieve ball, laydown circ. sub. -Break out bit, remove split ring. -Install core cap and run in to top sub. -Remove inner barrel with core #9 and la down to i eshed. 08:00 - 08:30 0.50 EVAL P INT1 Clear and clean rig floor. 08:30 - 09:00 0.50 EVAL P INT1 Service topdrive, drawworks, and crown. 09:00 - 11:30 2.50 EVAL P INT1 Finish cutting cores in pipeshed. Rig down core equipment in pipeshed. 11:30 - 12:30 1.00 DRILL P INTi Load BHA into pipeshed. Program MWD/Eco Scope tools. 12:30 - 15:00 2.50 DRILL P INT1 PJSM. Pick up and make up drilling BHA #20: New HTC 8.5" MXL-1X bit, NM Stab, Eco Scope, MWD, 8.5" ghost reamer, tea NM DC, NM stab, ball catcher, CCV, 1 jt 5" HWDP, Jar, 1 jt 5" HWDP, XO, 24 jts 4" HWDP. -Shallow hole test MWD ~ 980', 400 gpm, 1145 psi. 15:00 - 16:00 1.00 DRILL P INTi Run in hole from 980' to 3010'. 16:00 - 16:30 0.50 DRILL P INT1 Circulate at shoe. -450 gpm, 2160 psi. -50 rpm, 2.2k torque. -PU - 96k, SO - 78k, RWT - 86k. -Install blower hose, record slow pump rates. 16:30 - 17:30 1.00 DRILL P INTi Run in hole from 3010' to 4874'. -Wiped 9 7/8" x 8.5" interface - no drag. 17:30 - 18:30 1.00 DRILL P INT1 Wa hand ream to bottom ~ 4965'. -300 gpm, 1450 psi, 40 rpm, 4.4k torque. -Record slow pump rates. 18:30 - 23:30 5.00 DRILL P INT1 Drill 8.5" to in rathole from 4965' to TD ~ 5165' MD 4687' TVD. -475 gpm, 2910 psi off bottom, 3050 psi on bottom. -120 rpm, 4.6k tq off bottom, 4.8k tq on bottom. -PU - 145k, SO - 100k, RWT - 114k. -ADT - 4.13 hrs 23:30 - 00:00 0.50 DRILL P INT1 Circulate bottoms up at TD. 475 gpm, 2850 psi, 120 rpm, 4.9k torque. 'No mud loss for the day. 5/19/2008 00:00 - 00:30 0.50 DRILL P INT1 Finish circulating bottoms up at TD. -475 gpm, 2850 psi, 120 rpm, 5k torque. 00:30 - 08:00 7.50 DRILL P INT1 MadPass log from 5165' to 4401'. -150 fph max, survey every 90'. -475 gpm, 2730 psi, 55 rpm, 4.8k torque. -Wiped 8 1/2" x 9 7/8" interface several times - no drag. -Monitor well ~ 4401' -static. MW 10.6 ppg in and out. 08:00 - 09:30 1.50 DRILL P INTi POH from 4401' to 2979'. -Pulled tight to 35k over from 4375' to 4355'. Wiped clean. 09:30 - 10:00 0.50 DRILL P INT1 Open CCV, circulate at shoe. -600 gpm, 3000 psi. -Monitor well -static. -Pump dry job. 10:00 - 11:30 1.50 DRILL P INT1 POH from 2979' to 245'. -Close CCV. 11:30 - 12:00 0.50 DRILL P INTi Stand back jar stand. -Slowdown topdrive and clean floor. 12:00 - 14:00 2.00 DRILL P INT1 PJSM on nuclear source. Laydown BHA #20. Punted: 8/6/2008 12:18:26 PM i • gp Page 17 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase ~ Description of Operations 5/19/2008 12:00 - 14:00 2.00 DRILL P INTi 14:00 - 15:30 1.50 DRILL P INT1 15:30 - 17:00 1.50 EVAL P INTi 17:00 - 19:30 2.50 EVAL P INT1 19:30 - 23:30 4.00 EVAL P INTi 23:30 - 00:00 0.50 EVAL P INTi 5/20/2008 00:00 - 01:30 1.50 EVAL P INT1 01:30 - 03:00 1.50 PXA P SURE 03:00 - 05:00 2.00 PXA P SURE 05:00 - 05:30 0.50 PXA P SURE 05:30 - 07:30 2.00 PXA P SURE 07:30 - 08:30 I 1.001 PXA I P I I SURE 08:30 - 09:30 1.001 PXA I P SURE 09:30 - 10:00 0.50 PXA P SURE 10:00 - 10:30 0.50 PXA P SURE 10:30 - 11:30 1.00 PXA P SURE 11:30 - 12:30 1.00 PXA P SURE 12:30 - 14:30 2.00 PXA P SURE 14:30 - 15:00 0.50 PXA P SURE 15:00 - 16:30 1.50 PXA P SURE 16:30 - 17:00 0.50 PXA P SURE 17:00 - 19:30 2.50 PXA P SURE -Bit grade - 1-1-NO-A-E-I-NO-TD Clear and clean rig floor. Spot E-line unit and build logging tools. -Continue cleaning rig. Rig up SWS wireline. Run in hole with Platform Express and Dipole Shear Sonic , Imager loggine tools to 5140'. Log from 5140' to 2600'. POH with logging tools. Rig down SWS wireling. Continue rigging down SWS tools, clean and clear floor PJSM. Rig up to run 3.5" NSCT cement stinger. Pick up and make up 3.5" NSCT mule shoe and 27 joints of NSCT tubing to 858'. Rig down tubing running equipment and change over to 4" drill pipe equipment. Run in hole with cement stinger on 4" drill pipe from 858' to 5165'. Up Wt. 110k Dn. Wt. 80k Circulate and Reciprocate ~ 5165'. Stage pumps at 515 bpm ~ 3100 psi. Up Wt. 105k Dn. Wt. 80k PJSM with Dowell. Pumped 5 bbl of H2O and pressure tested lines to 4000 psi. Good Test Pumped a spacer of 19 bbl of Chem Wash, then 69 bbl 15.8 ppg of class G cement, then follwed with 2.5 0~2 Swapped over to rig pumps and displaced with 37 bbl of 10.5 ppg MOBM. Trip out of hole from 5156' to 4365' Up Wt. 95k Dn. Wt. 80k Circulate a bottoms up ~ 4365'. 600 gpm ~ 2900 psi y Up Wt. 95k Dn. Wt. 75k Wash down to 4435'. Rig up the cement head and lines umped a spacer of 19 bbl of Chem Wash, then 91 bbl 15.8 ppg of class G cement, then follwed with 2.5 bbl o H~ 20. Swappe over o rig pumps and displaced with 30 bbl of 10.5 ppg MOBM. Rig Down the cement head and lines. Trip out of the hole from 4435' to 3465'. Circulate and condition 2x drill pipe volume ~ 500 gpm, 1820 psi. Pump wiper ball and condition. PJSM for cement plug #3 Wash down from 3465' to 3650' ~ 500 gpm, 1780 psi Rig up the cement head and lines Pumped a spacer of 19 bbl of Chem Wash, then 82 bbl 17 ppg of class G cement, then follwed with 2.5 bbl of H2O. Trip out of hole from 3650' to 2825' Pum wi er ball and condition. Displace to water ase mu ,pump spacer ~ 400 gpm, 1710 Printed: 8/6/2008 12:18:26 PM • gp Page 18 of 18 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: ORIG DRILLING Start: 4/25/2008 End: 5/21/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date ~ From - To Hours Task Code NPT Phase Description of Operations 5/20/2008 17:00 - 19:30 2.50 PXA P SURE psi Displace with seawater 19:30 - 22:00 2.50 PXA P SURE Trip out of hole from 2825' to 810' Rig up to VD 3 1/2" tubing 22:00 - 00:00 2.00 PXA P SURE Continue to trip out of the hole from 810' to 345' 5/21/2008 00:00 - 02:00 2.00 P SURE Continue laying down 3 1/2" tubing from 345' to 0' Bottom 5 joints had 1/8" shealth of cement on them 02:00 - 09:00 7.00 PXA P SURE Clean and clear the floor and scrub the pits to get all remaining BM out o the mu s stem. Used hot soapy water to clean the system out Flushed out the stack. 09:00 - 11:30 2.50 PXA N WAIT SURE Waiting on trucks due to G & I being down. -Unable to continue cleaning due to waste fluids. 11:30 - 16:30 5.00 PXA P SURE Clean and clear the floor and scrub the pits to get all the remaining OBM out of the mud system. Used hot soapy water to clean out the entire system. 16:30 - 21:00 4.50 PXA N WAIT SURE Waiting on trucks due to G & I being down. -Unable to transport mud from plant to rig. Printed: 8/6/2008 12:18:26 PM BP Page 1 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours I' Task Code I NPT Phase Description of Operations 5/21/2008 21:00 - 00:00 3.00 DRILL P INTi PJSM Consisted of Nad rig crew DD MWD and BP WSL Matt Martyn and WSLf Chris Kobuck. Preparing to pick up BHA # 21 that consists of nukes. -Began to pick up BHA to MWD tool. 5/22/2008 00:00 - 03:30 3.50 DRILL P INTi Continued to ick u BHA # 21 and run in the hole to 2804'. -Began to wash down ~ 1 bpm, 100 psi to 3016'. -Ta ed cement ~ 3016' and slacked off 30k on it. -AOGCC witness waived by Bob Noble. Test witnessed by BP WSL Matt Martyn. 03:30 - 04:00 0.50 DRILL P INT1 Drill out cement from 3016' to 3025' -Up Wt. 120k /Down Wt. 70k /ROT 90k / WOB 2k -450 gpm ~ 1100 psi off and 1200 psi on -55 RPM, TO 6k on / 4k off 04:00 - 05:30 1.50 DRILL P INT1 Displace mud system to Water Base -LSND 8.8 ppg -475 gpm ~ 840 psi -Cleaned surface equipment while displacing 05:30 - 08:30 3.00 DRILL P INTi Control Drill out cement from 3025' to 3089' -Up Wt. 105k /Down Wt. 80k /ROT 90k / WOB 2k -650 gpm ~ 1350 psi off and 1375 psi on -40 RPM, TO 5k on / 4k off -Established ECD baseline ~ 3029' 08:30 - 12:00 3.50 DRILL P INT1 Drill 9 7/8" from 3089' to 3660' -Up Wt. 115k /Down Wt. 80k /ROT 92k / WOB 10k -650 gpm ~ 1675 psi off and 1740 psi on -80 RPM, TO 6k on / 5k off -CECD 9.06 AECD 9.73 -ART 1.88 / AST 1.68 /ADT 3.56 -Pumped a 32 bbl Hi-Vis sweep ~ 3600' and had a 5% increase in returns. 12:00 - 00:00 12.00 DRILL P INT1 Drill 9 7/8" from 3660' to 4833' -Up Wt. 135k /Down Wt. 93k /ROT 107k / WOB 10k -650 gpm ~ 2225 psi off and 2420 psi on -80 RPM, TO 6k on / 5k off -CECD 9.32 AECD 10.03 -ART 6.62 / AST 1.82 /ADT 8.44 5/23/2008 00:00 - 05:00 5.00 DRILL P INTi Drill 9 7/8" from 4833' to 5271' -Up Wt. 137k /Down Wt. 90k /ROT 105k / WOB 20k -650 gpm ~ 2440 psi off and 3200 psi on -80 RPM, TO 9k on / 7k off 05:00 - 06:00 1.00 DRILL P INTi Circulate and discuss fin I TD -Rotate and Reciprocate 2x bottoms up ~ 5270'. -440 gpm @ 1400 psi 06:00 - 11:30 5.50 DRILL P INT1 Drill ahead from 5270' to 5590' -Up Wt. 137k /Down Wt. 90k /ROT 106k / WOB 20k -650 gpm ~ 2850 psi off and 3000 psi on -80 RPM, TO 9k on / 7k off -AECD = 9.88 CECD= 9.38 -MW In & Out 9.2ppg 11:30 - 12:00 0.50 DRILL P INTi -Rotate and Reciprocate 1 x bottoms up ~ 5590 -650 gpm ~ 2850 psi Printed: 7/23/2008 2:28:44 PM gp Page 2 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 5/23/2008 12:00 - 17:30 5.50 DRILL P INTi Back ream from 5590' to 3945'. -Mad Pass from 5590' to 4350' -Up Wt. 130k /Down Wt. 90k /ROT 105k -650 gpm ~ 2650 psi off -80 RPM, TO 7k off 17:30 - 21:00 3.50 DRILL P INT1 Trip out of the hole from 3945' to 152' -Monitor well "static" -Up Wt. 125k /Down Wt. 90k 21:00 - 22:30 1.50 DRILL P INTi Lay down BHA # 21 and clean and clear floor for logging tools. 22:30 - 00:00 1.50 EVAL P INTi PJSM, w/ SWS and NAD hands, BP WSL Matt Martyn and WSLf Chris Kobuck. -Rig up SWS wireline and prepare to begin logging. 5/24/2008 00:00 - 06:00 6.00 EVAL P INT1 Runnin in hole to w/ MDT tools on DP to -4 125' md. 06:00 - 10:00 4.00 EVAL P INT1 Run in hole from 4125' to 4314' -Verified latch up, 5bpm ~ 405 psi 10:00 - 12:00 2.00 EVAL P INTi Pressure samples ~ 4380.6' , 4386.6', and 4412.6' -Up Wt. 105k Down Wt. 80k 12:00 - 00:00 12.00 EVAL P INTi MDT pressure samples - 4461.7', 4463.8', 4485.6', 4488.6', 4572.6', 4592.6', 4594.6', 4610.6', 4612.6', 4669.5', 4677.6', 4712.7', 4877.5', 4878.6', 4901.6', 4916.6', 4917.7', 4935.6', 5015.6', 5026.7', 5064.5', 5108.5', 5128.7', 5251.6', 5252.6', 5271.6' - Up Wt. 120k Down Wt. 82k -Mud Wt In & Out 9.2 ppg 5/25/2008 00:00 - 02:30 2.50 EVAL P INTi MDT Pressures -5265', 5301'. 5430', 5449', 5503' 02:30 - 05:00 2.50 EVAL P INTi MDT Sample # 1 ~ 5265' - SB_OBa Formation - 2 450cc chambers of fluid recovered 05:00 - 13:30 8.50 EVAL P INTi MDT Sample # 2 ~ 5122', 5124', 5130' - SB_OBb Formation - No Fluid recovered -Going to attempt to get a sample after completing other samples. 13:30 - 17:00 3.50 EVAL P INTi MDT Sample # 3 ~ 5503' - SB OBd Formation - 3 450cc chambers of fluid recovered 17:00 - 21:00 4.00 EVAL P INTi MDT Sample # 4 ~ 5009' - SB OBa Formation -3 450cc chambers of fluid recovered 21:00 - 00:00 3.00 EVAL P INT1 MDT Sample # 5 ~ 4895' -SB OA Formation -2 450cc chambers of fluid recovered 5/26/2008 00:00 - 03:30 3.50 EVAL P INT1 MDT Sample # 6 ~ 4673' -SB Nb Formation -4 450cc chambers of fluid recovered 03:30 - 06:30 3.00 EVAL P INT1 Attempting to get a sample rom t e 5122' - 5130' area that wasn't successful earlier. '-~ -Sample was unsuccessful due to geology..tool working properly but sample was not recovered. 06:30 - 08:00 1.50 EVAL P INT1 Trip out of the hole from 5102' to 4080' -Up Wt. 120k Down Wt. 75k 08:00 - 10:00 2.00 EVAL P INT1 PJSM, Rig Down SWS Printed: 7/23/2008 2:28:44 PM • g p Page 3 of 30 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To ~ Hours I Task Code NPT I Phase Description of Operations 5/26/2008 110:00 - 12:00 2.00 I r__F~ EVAL P INT1 Monitor well static ~ -Pump 15 bbl 11.5 ppg Dry Job, 170 gpm (~ 265 psi 12:00 - 15:30 3.50 EVAL P INT1 15:30 - 16:00 0.50 EVAL P INT1 16:00 - 16:30 0.50 EVAL P INTi 16:30 - 17:30 1.00 EVAL P INTi 17:30 - 18:30 1.00 EVAL P INT1 18:30 - 19:30 1.00 EVAL P INTi 19:30 - 21:00 1.50 EVAL P INT1 21:00 - 21:15 0.25 EVAL P INT1 21:15 - 00:00 2.75 EVAL P INT1 5/27/2008 00:00 - 02:00 2.00 EVAL P INT1 02:00 - 03:30 1.50 CASE P INT1 03:30 - 07:00 3.50 CASE P INT1 07:00 - 10:00 3.00 CASE P INTi 10:00 - 10:30 0.50 CASE P INT1 10:30 - 12:00 1.50 CASE P INTi 12:00 - 13:00 1.00 CASE P INT1 13:00 - 21:30 8.50 CASE P INTi 21:30 - 22:30 1.00 CASE P INT1 -Blow down the top drive -Trip out of the hole from 4080' to 161' PJSM, Lay down SWS tools -clean and clear floor PJSM, Pick up clean out BHA # 22 -9.875 Hole Opener, 9.875 NB Stab, Jars Run in hole to 938' Service rig, crown, and adjust the brakes Run in hole from 938' to 2938' -Install blower hose and fill pipe -Up Wt. 96k Down Wt. 68k Continue to run in the hole from 2938' to 5499' Screw into drillstring and stage pumps up to 650 gpm, 2540 psi. PU - 135k, SO - 70k, RTW - 100k. 120 rpm, 6k TO. Circulate bottoms up followed by 35 bbl hi vis sweep surface to surface. Shakers cleaned up well after initial bottoms up. No change in cuttings load on shakers once sweep back to surface. No losses while circulating. Shut down, monitor well -static. MW in 9.2 ppg, MW out 9.2 ppg. Pump dry job. Install air slips. Prepare to POH. POH from TD to top of cleanout BHA. No overpulls over 5k on trip out. PJSM, Lay down BHA # 22 from cleanout run. -Everything in great shape...no sticky spots found. PJSM, Rigging up to run 7 5/8" casing. Change out upper rams from variables to 7-5/8" pipe rams. PU 7-5/8" test joint & test upper rams to 500 psi low & 3,500 psi high. Good test. Continue to RU for casing run. Make dummy run with landing joint. Install 350 ton elevators and slips. PU and RIH with 7-5/8" 29.7# L-80 BTC-M shoe track and check floats -holding. Continue PU and RIH with 7-5/8" 29.7# L-80 BTC-M casina to 1.155', utilizing BOL 2000 NM thread lubricant and torqued to the mark with 8,400 ft-Ibs. Filled every joint with the fillup tool and broke circulation for 5 minutes every 10 joints while running in the hole. RU the rig floor to run 7-5/8" VamTop casing. Crossover and RIH with 7-5/8" 29.7# L-80 VamTop to 1768' - torque turning each connection with 14,450 ft-Ibs and utilizing Jet Lube Seal Guard thread lubricant. Filled every joint with the fillup tool and broke circulation for 5 minutes every 10 joints while running in the hole. Circulate a bottoms up prior to going into the open hole with the casing - 302 gpm, 547 psi, PU - 115k, SO - 92k. Continue PU and RIH with 7-5/8" 29.7# L-80 VamTop to 5,555' - torque turning each connection with 14,450 ft-Ibs and utilizing Jet Lube Seal Guard thread lubricant. Filled every joint with the fillup tool and broke circulation every 5 joints RIH and circulated for 10 minutes every 15 joints while running in the hole. MU the casing hanger and landing joint. Land the hanger on the ring with the shoe at 5,582'. LD the fillup tool and RU the Printed: 7/23/2008 2:28:44 PM gp Page 4 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code I' NPT Phase Description of Operations 5/27/2008 21:30 - 22:30 1.00 CASE P INT1 cement head, PU - 210k, SO - 115k. Ran total of: 25 jts 7 5/8" 29.7# L-80 BTC-M casing, 110 jts 7 5/8" 29.7# L-80 VamTop casing 1 X-over jt 7 5/8" TCII box XBTC-M pin 2 ea. 10 'BTC-M pup joints 4 ea. 20 'BTC-M pup joints X81 straight 7-3/4" x 9-5/8" x 8" centralizers X40 stop rings 22:30 - 00:00 I 1.50 I CASE I P 15/28/2008 ~ 00:00 - 03:00 I 3.00 CEMT P RA tags ~ 5,072', 4,915', & 4,689' INTi Circulate and condition mud -Stage pumps up to 7 bpm @ 570 psi -Up Wt. 205k Down Wt. 110k INT1 7 5/8" Casing Cement Job -Pump 5 bbls of water ~ 5 bpm -Pressure test lines to 3500 psi -Pump 50 bbls of 12ppg Mud Push ~ 5 bpm -Drop Bottom Plug -Kick out plug with 82 bbls of 16 ppg cement containing durastone -Drop top plug -Kick out plug with 5 bbls from Dowell -~~ -Pressured up with 2340 strokes -Issues with bottom plug bursting, pressured up with riq pumps to 3800 si with no luck -Switched over to Dowell pumps and pressured to 5000 psi 5 different times with no luck. 03:00 - 04:00 1.00 CEMT N CEMT INT1 Conference call with Mike Shultz, Rob Tirpack, Scott Kolstad, Matt Martyn, Brian Buzby, and Chris Kobuck to decide what actions are to be taken due to cement displacement issues. 04:00 - 05:30 1.50 CEMT N CEMT INT1 Rigging up to pull 7 5/8" casing. - on a evators, power tongs, and prep rig floor and pipe shed for laying down the casing. 05:30 - 12:00 6.50 CEMT N CEMT INT1 PJSM, Lay down 7 5/8" 29.7# L-80 Vam Top HC from 5582' to 3717' -Up Wt. 200k Down Wt. 130k 12:00 - 16:30 4.50 CEMT N CEMT INTi Continue to lay down 7 5/8" 29.7# L-80 Vam Top HC from 3717' to 2954' -Up Wt. 160k Down Wt. 110k -Pick up hanger and and landing joint -Land casing ~ 2982' 16:30 - 17:30 1.00 CEMT N CEMT INT1 Rig down 7 5/8" Casing Equipment -Change out bales from long to short bales 17:30 - 18:30 1.00 CEMT N CEMT INT1 Install Pack-off -FMC hand Keith on hand for packoff installation. 18:30 - 19:30 1.00 CEMT N CEMT INT1 PJSM, Pick up tools to the floor -Make u BHA #23 for cement clean out 19:30 - 20:30 1.00 CEMT N CEMT INTi Run in hole from 142' to 877' 20:30 - 21:30 1.00 CEMT N CEMT INTi Ream down from 877' to 1111' -103 spm ~ 300 gpm, 475 psi Printed: 7/23/2008 2:28:44 PM • BP Operations Summary Report Page 5 of 30 ~ Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours ~; Task Code'i NPT Phase Description of Operations 15/28/2008 120:30 - 21:30 I 1.001 CEMT I N I CEMT I INTi 21:30 - 00:00 I 2.501 CEMT I N I CEMT I INT1 15/29/2008 100:00 - 12:00 I 12.00) CEMT I N I CEMT I INT1 12:00 - 19:00 I 7.001 CEMT I N I CEMT I INT1 19:00 - 20:00 I 1.001 CEMT I N I CEMT I INT1 20:00 - 21:00 1.00 CEMT N CEMT INT1 21:00 - 21:30 0.50 CEMT N CEMT INT1 21:30 - 22:30 1.00 CEMT N CEMT INT1 22:30 - 23:00 0.50 CEMT N CEMT INT1 23:00 - 00:00 1.00 CEMT P INTi 5/30/2008 100:00 - 04:30 4.501 CEMT P INT1 04:30 - 05:00 0.50 CEMT N CEMT INT1 05:00 - 05:30 0.50 CEMT N CEMT INT1 05:30 - 06:30 1.00 CEMT N CEMT INT1 06:30 - 12:00 5.50 CEMT N CEMT INT1 -Up Wt. 55k Down Wt. 52k ROT 53k -25 RPM with 4k Torque -Top Plug located ~ 1111' -Verification of Black Plug found on shakers -Initially Durastone was thick coming over shakers, than tapered off to minimal Durastone on the shakers. Ream down from 1111' to 1259' -103 spm ~ 300 gpm, 520 psi off 760 psi on -Up Wt. 60k Down Wt. 55k ROT 59k -30 RPM with 4k Torque off and 1.6k on Drill out cement from 1259' to 2117' -103 spm ~ 300 gpm -Up Wt. 75k Down Wt. 60k ROT 67k WOB 15k -30 RPM with 2.5k Torque off and 1.5k on -Psi On 975 /Off 780 -BOP started to become erratic around 1530' after varying parameters, still no Iuck...After spudding on bit obstruction broke free and ROP picked back up to normal. Drill out cement from 2117' to 2466' -101 spm ~ 300 gpm -Up Wt. 80k Down Wt. 65k ROT 72k WOB 20k -30 RPM with 2k Torque off and 2.4k on -Psi On 1205 /Off 890 Circulate a bottoms up -101 spm ~ 300 gpm , 930 psi -Displace to 8.5ppg clean seawater -77 spm ~ 228 gpm , 475 psi Begin to trip out of the hole from 2466' to 112' -Up Wt. 84k Down Wt. 66k Lay down BHA -Jars, Bypass sub, and Motor Pull wear ring and flush out the stack to prepare for BOP test Pick up BOP test tools -Install the test plug and rig up to test BOPs Rig up to test with 7 5/S" tPSt joint -Test annular preventer to 250 psi low, 3500 psi high for 5 minutes each test - OK. - Test witnessed by BP WSL Matt Martyn and NAD TourPusher Wayne Stout. -Witness waived by AOGCC rep Jeff Jones Continue to Test BOP - Change out to 4" test joint. Test upper, lower rams, and annular preventer to 250 psi low, 3500 high -Test Winessed by BP WSL Matt Martyn and NAD TourPusher Wayne Stout. Lay down the test plug -Install the wear bushing with a 7 3/8" ID Pick up BHA # 24 -6 3/4" Bit, Motor, Drill Collars, Jars, HWDP -Run in hole to 142' Continue to trip in the hole from 142' to 2466' Drill up cement from 2466' to 2861' Printed: 7/23/2008 2:28:44 PM g p Page 6 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: D t F T H ~ T k C d ~ NPT a e rom - o ours as o e Phase Description of Operations 5/30/2008 06:30 - 12:00 5.50 CEMT N CEMT INTi -Up Wt. 90k Down Wt. 71k ROT 77k -300 gpm ~ 910 psi on / 765 psi off -WOB 15k -Torque 2.2k on / 2k off 12:00 - 13:30 1.50 CEMT N CEMT INTi Circulate bottoms up - 102 spm , 302 gpm ~ 764 psi -Pump Hi-vis sweep and chase with water -78 spm, 232 gpm ~ 457 psi 13:30 - 15:30 2.00 CEMT N CEMT INT1 Trip out of hole from 2861' to 142' -Up Wt. 90k Down Wt. 70k 15:30 - 16:00 0.50 CEMT N CEMT INT1 Lay down BHA # 24 16:00 - 17:00 1.00 CEMT N CEMT INTi Pull wear ring and pack off 17:00 - 18:00 1.00 CEMT N CEMT INT1 Make up landing joint and pull hanger to floor and lay down -Up Wt. 115k Down Wt. 90k -MWT 9.1PP9 18:00 - 00:00 6.00 CEMT N CEMT INT1 Lay down casing 1 at a time from 2954' to 1434' -All threads inspected by VAM rep Andy Fain -Up Wt. 75k 5/31/2008 00:00 - 06:30 6.50 CASE N CEMT INT1 Continue to la down 7 5/8" Casing from 1434' to 93' -Cut a hole in the casing with the assistance of the welder in order to analyze the issues with the cement additives (durastone) -Bottom plug (orange) was located at the float collar -Complete) acked off with Durastone in u and ast 'oint. -Plu sheared but was acked off b Durastone 06:30 - 08:00 1.50 CASE N CEMT INT1 Finish pulling shoe track and then rig down casing equipment -Clean and Clear rig floor and prepare to change out rams. 08:00 - 09:00 1.00 WHSUR N CEMT INT1 Flush out the BOP stack and install the test plug. Rig up testing equipment. 09:00 - 11:00 2.00 WHSUR N CEMT INT1 Change out rams from 7 5/8" to 3 1/2" x 6" Vari Rams -Test to 250 psi low / 3500 psi high...Good test 11:00 - 12:00 1.00 WHSUR N CEMT INTi Blow down all test equipment -Pulled the test plug -Installed the wear ring 12:00 - 13:00 1.00 CASE N CEMT INTi Pick up BHA # 25 -Hole Opener ,HWDP, Jars, HWDP 13:00 - 14:30 1.50 CASE N CEMT INT1 Run in hole from 108' to 2938' -Fill pipe and install blower hose -Up Wt. 95k Down Wt. 70k 14:30 - 16:30 2.00 CASE N CEMT INT1 Continue to run in the from from 2938' to 5499' -Wash down to 5591' -202 spm ~ 599 gpm, 2321 psi -Saw a few tight spots running in the hole that took 20k over -3182' -3900' -4000' 16:30 - 18:00 1.50 CASE N CEMT INT1 Circulate a bottoms up -Pump 40 bbl Hi-Vis Sweep surface to surface -120 spm ~ 653 gpm , 2723 psi -100k ROT ~ 110 RPM , 6.6k Torque -9.2 MWT. 18:00 - 22:30 4.50 CASE N CEMT INT1 Monitor well "static" -Pump Dry Job Printed: 7/23/2008 2:28:44 PM BP Operations Summary Report Page 7 of 30 ~ Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task ~ Code NPT Phase Description of Operations i 5/31/2008 18:00 - 22:30 4.50 CASE N CEMT INTi -Begin to trip out of the hole from 5591' to 108' 22:30 - 23:00 0.50 CASE N CEMT INT1 23:00 - 00:00 1.00 WHSUR N CEMT INT1 6/1/2008 00:00 - 02:30 2.50 WHSUR N CEMT INTi 02:30 - 03:30 1.001 CASE N CEMT INT1 03:30 - 07:00 3.50 ~ CASE N CEMT INT1 07:00 - 12:30 I 5.501 CASE I N I CEMT I INT1 12:30 - 13:00 0.50 CASE N CEMT INT1 13:00 - 16:30 3.50 CASE N CEMT INT1 16:30 - 17:30 1.00 CASE N CEMT INT1 17:30 - 19:00 1.50 CASE N CEMT INT1 19:00 - 23:00 I 4.001 CASE I N I CEMT I INT1 23:00 - 00:00 1.00 CASE N CEMT INT1 6/2/2008 00:00 - 02:15 2.25 CEMT N CEMT INT1 -Up Wt. 140k Down Wt. 80k -No change in returns until after sweep passed over shakers then the returns stopped. Lay down BHA # 25 -Clean and clear floor Pull Wear ring and then install the test plug Change out Rams from 3 1/2" x 6" Vari to 7 5/ '; Zes upper rams wig es joint to 250 psi low / 3500 psi high -Good test Rig down test equipment and clear floor. -Rig up casing equipment and prepare to run 7 5/8" casing for the second time. -350 Ton Elevators, scaffolding, and casing tongs PU and RIH with 7-5/8" 29.7# L-80 BTC-M shoe track and check floats -holding. Continue PU and RIH with 7-5/8" 29.7# L-80 BTC-M casing to 1215', utilizing BOL 2000 NM thread lubricant and torqued to the mark with 9,000 ft-Ibs. Filled every joint with the fillup tool and broke circulation for 5 minutes every 10 joints while running in the hole. Continue to PU and run 7 5/8" 29.7# L-80 Vam Toa casing from 1215' to 2988'. -Torque Turned to 14450 ft /Ibs and doped with Jet Lube Seal Guard. -Circulater for 5 minutes every 10 joints and record the up and down wt. -Up Wt. 120k Down Wt. 93k Circulate a bottoms up ~ 2988' -98 SPM ~ 291 gpm , 400 psi Continue in the hole with 7 5/8" Casing to 4230' -Up Wt. 175k Down Wt. 110k Stopped running casing in the hole in order to change out the cup on the franks tool. Also, took this time to clean the floor. Continued to run in the hole with 7 5/8" casing to 4430' -Circulated a bottoms up -98 spm ~ 291 gpm , 433k psi -Up Wt. 175k Down Wt. 110k Continue to run in the hole with 7 5/8" casing to 5552' -Rigged down franks tool and casing equipment -Made up landing joint to hanger and ran in hole and landed casing i ~ 5582' Circulated 2 bottoms up in order to prepare for cement job. -Clean mud coming back over shakers -Up Wt. 210k Down Wt. 115k 7 5/8" Casing Cement Job -Pump 5 bbls of water ~ 5 bpm -Pressure test lines to 3500 psi -Pump 50 bbls of 12ppg Mud Push ~ 5 bpm -Drop Bottom Plug -Kick out plug with 82 bbls of 15.8 ppg cement -Drop top plug -Kick out plug with 5 bbls from Dowell Printed: 7/23/2008 2:28:44 PM BP Operations Summary Report Page 8 of 30 ~ Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To ~ Hours Task Code NPT Phase I Description of Operations - -- 6/2/2008 00:00 - 02:15 2.25 CEMT N CEMT INT1 -Displace with 248 bbls from the rig pumps. -Plug bumped ~ 3440 strokes 02:15 - 02:45 0.50 CASE P INTi Pressured up to 3500 psi to pressure test casino for 30- -Good test 02:45 - 04:30 1.75 CEMT P INT1 Slowdown surface lines. Rig down cement head and lines. Laydown landing joint. Change out bales. 04:30 - 05:30 1.00 CASE P INTi Set pack-off and test to 5000 psi for 10 minutes. Good Test 05:30 - 06:30 1.00 CASE P INTi Rig up 2nd Kill line in order to perform injection test. -Pumped 10 spm for a total of 4 bbls ~ 440 psi 06:30 - 08:30 2.00 WHSUR P INT1 Chan a out rams from 7 5/8" to 3.5" x 6" Vari -Install test plug and make up 4" Test Joint -Test rams with the 4" test joint to 250 psi low / 3500 psi high -Good Test -Pull Test plug and test joint -Install 7" ID Wear Ring 08:30 - 09:30 1.00 CASE P INT1 Service Top Drive -Grease and adjust 09:30 - 13:00 3.50 DRILL P PROD1 Pick up BHA # 26. Load Nukes and then run in to 242' 13:00 - 14:00 1.00 DRILL P PROD1 Single in drill pipe from 242' to 1197' 14:00 - 14:30 0.50 DRILL P PROD1 Shallow test MWD ..Good test -118 spm C~ 290 gpm and 955 psi 14:30 - 17:30 3.00 DRILL P PROD1 Continue to single in the hole from 1197' to 3873' -In'ectin 118 bbls of LSND mud w -ICP 530 psi ~ .6 bpm -FCP 840 psi ~ 2 bpm 17:30 - 19:00 1.50 DRILL P PROD1 Continue to single into the hole from 3873' to 5302' -Rig up Little Red Hot Oil Services -Freeze Protect OV to 2500' MD with 100 bbls of dead crude -ICP 700 psi C~ .6 bpm -FCP 1500 psi ~ 2 bpm -SIP 600 psi 19:00 - 20:00 1.00 DRILL P PROD1 Clean and clear rig floor -Lay down 3rd party tools (source box) 20:00 - 22:00 2.00 DRILL P PROD1 Cut and slip 85' of drilling line 22:00 - 23:00 1.00 DRILL P PROD1 Service top drive, adjust brakes, 23:00 - 00:00 1.00 DRILL P PROD1 Install TIW valve and IBOP and prepare for a stripping drill 6/3/2008 00:00 - 01:00 1.00 DRILL P PROD1 Meeting with crew to discuss upcoming stripping drill Perform stripping drill 01:00 - 03:30 2.50 DRILL P PROD1 Change out swivel packing on top drive 03:30 - 04:00 0.50 DRILL P PROD1 Pull up to retrieve IBOP and TIW out of string Test Swivel Packing 04:00 - 05:30 1.50 DRILL P PROD1 Displace from seawater to VersaPro MOBM 9.3 ppg -6.5 BPM ~ 1,848 psi, 15 RPM ~ initial 5.4 KWlbs -final 3.1 Kft/Ibs. -Clean out pits and mud system 05:30 - 07:30 2.00 DRILL P PROD1 Wash down from 5,302' to 5,483', tag cement, Drill Shoe track and 20' of hole to 5.611' for FIT -Float collar on depth at 5,498' and shoe at 5,582' -6.5 BPM ~ 2,132 psi off, 2,370 psi on bottom, 30 RPM ~ 3.9 KfUlbs off, 4.3 Kft/Ibs on bottom -PUW 135, SOW 80, RWT 96K, WOB 5-10K 07:30 - 08:00 0.50 DRILL P PROD1 Circulate bottoms up and obtain slow pump rates Printed: 7/23/2008 2:28:44 PM BP Operations Summary Report Page 9 of 30 ~ Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 6/3/2008 07:30 - 08:00 08:00 - 08:30 8:30 - 12:00 0.50 0.50 .50 DRILL DRILL RILL P P P PROD1 PROD1 ROD1 -6.8 BPM ~ 2,067 psi, 30 RPM ~ 3.2 Kff/Ibs Pull back into the shoe at 5,498', Perform FIT to 11.5 ppg -TVD = 4 465' -MW = 9.3 -PSI = 520 Directional drill from 5,611' to 5,778', slide as need to land in OBb -7.3 BPM (~ 2,360 psi off, 2,454 psi on, 30 RPM ~ 3-4 Kft/Ibs on and off bottom -PUW = 136, SOW = 80K, RWT = 96K, WOB = 5-10K -Control drill <320'/hr, survey every 30' 12:00 - 00:00 12.00 DRILL P PROD1 Directional drill from 5,778' to 7,013', eosteer as per Geologist -Billet tanget from 5,884' to 6,102' -7.3 BPM ~ 2,480 psi off, 2,560 psi on, 60 RPM ~ 4 Kft/Ibs off, 4.5 Kff/Ibs on bottom -PUW = 120, SOW = 80K, RWT = 91 K, WOB = 5K -Control drill <320'/hr, survey every 30' 6/4/2008 00:00 - 12:00 12.00 DRILL P PROD1 Directional drill from 7,013' to 8,055', Geosteer as per Geologist -7.3 BPM ~ 2,480 psi off, 2,645 psi on, 60 RPM ~ 5.5 KWlbs off, 6.0 KfUlbs on bottom -PUW = 123K, SOW = 61 K, RWT = 90K, WOB = 0-10K -survey every 30' 12:00 - 15:00 3.00 DRILL P PRODi Directional drill from 8,055' to 8,504', Geosteer as per Geologist -7.3 BPM C~ 2,600 psi off, 2,760 psi on, 60 RPM ~ 5.0 KfUlbs off, 6.5 KWlbs on bottom -PUW = 121 K, SOW = 68K, RWT = 91 K, WOB = 5K -survey every 30' 15:00 - 15:30 0.50 DRILL P PRODi Circulate as per Geologist -5.4 BPM @ 1,572 psi -PUW = 117, SOW = 71 K 15:30 - 20:00 4.50 DRILL P PROD1 pirectional drill from 8,504' to 8,953', Geosteer as per Geolo ist TD at the end of the drillers of on -7.3 BPM ~ 2,815 psi off, 2,910 psi on, 60 RPM ~ 6.4 Kft/Ibs off, 7.5 Kft/Ibs on bottom -PUW = 125K, SOW = 70K, RWT = 95K, WOB = 0-10K -survey every 30' 20:00 - 20:30 0.50 DRILL P PROD1 Circulate 1 open hole volume -7.3 BPM ~ 2,770, 60 RPM ~ 6.5 KfUlbs -MW in 9.4, MW out 9.4 -Monitor Well, well static 20:30 - 00:00 3.50 DRILL P PROD1 Back ream out to MADD Pass and clean well bore from 8,953' to 8,245' -7.3 BPM ~ 2,650 psi, 60 RPM ~ 5.5 Kff/Ibs -Max 600'/hr for logging 6/5/2008 00:00 - 09:30 9.50 DRILL P PROD1 Back ream out to MADD Pass and clean well bore from 8,245' to 5,580' -7.3 BPM ~ 2,150 psi -60 RPM (~ 4.4 KfUlbs -Max 600'/hr for logging, 300'/hr for caliper data from 6,003' to 5,793' sensor depth Printed: 7/23/2008 2:28:44 PM a r gp Page 10 of 30 ~ Operations Summary Report Legal Well Common W Event Nam Contractor Rig Name: Date Name: ell Name: e: Name: ~ From - To L-205 L-205 DRILL+ NABOR NABOR Hours COMPLE S ALAS S 9ES Task TE KA DRI I Code LING NPT Start I Rig Rig Phase Spud Date: 4/27/2008 : 5/21/2008 End: 7/8/2008 Release: 7/8/2008 Number: Description of Operations 6/5/2008 00:00 - 09:30 9.50 DRILL P PRODi Work through tight spots at 6,340' and 6,080' 09:30 - 11:00 1.50 DRILL P PROD1 Circulate bottoms up at the shoe, substantial increase in cuttings, took 3 bottoms up to clean up casing. -7.3 BPM ~ 2,150 psi -60 RPM ~ 4.5 KWlbs 11:00 - 12:00 1.00 DRILL P PROD1 Service top drive and adjust draw works linkage 12:00 - 14:30 2.50 DRILL P PROD1 Run in the hole from 5,580' to 8,901', no problems running ih hole 14:30 - 15:30 1.00 DRILL P PROD1 Wash down from 8,901' to 8,953', circulate bottoms up prior to fluid swap -6.8 BPM ~ 2,526 psi -60 RPM ~ 5.3 Kft/Ibs 15:30 - 16:30 1.00 DRILL P PROD1 Displace well bore from VersaPro LS to VersaPro SF -6.8 BPM ~ 2,000 psi -60 RPM ~ 5.3 Kft/Ibs -MW in 9.4 ppg, MW out 9.4 ppg -Perform Slow Pump Rates 16:30 - 23:00 6.50 DRILL P PROD1 Monitor well, well static. Pull 5 stands, no over pull or swabbing. Pump dry job and pull out of hole from 8,953' to 242', no problems pull out of hole. 23:00 - 00:00 1.00 DRILL P PROD1 PJSM on handling BHA and Source. Lay down jars, rack back collar stand, and pull source. 6/6/2008 00:00 - 02:00 2.00 DRILL P PROD1 Continue laying down remaining BHA. -Bit 0-0 in gauge 02:00 - 03:30 1.50 CASE P RUNPRD PJSM for running liner Rig up to run 4 1/2" liner, Swell Packer, and Aluminum Billet 03:30 - 09:00 5.50 CASE P RUNPRD Run in hole with 4 1/2" liner OBb Lateral to 3,142' -IBT made up to mark, avg torque 2,800 fUlbs, use BOL 2000 dope -1 Joint 4 1/2" L-80 12.6# IBT Solid Liner with Shoe -63 Joints 4 1/2" L-80 12.6# IBT Slotted Liner, 1 centralizer per -12 Joints 4 1/2" L-80 12.6# IBT Solid Liner, 1 centralizer per joint on joints 1-11, free floating -3 Space out Pup joints 4 1/2" L-80 12.6# IBT Pups -1 Swell Packer assembly with Hydro Form Centralizer below 09:00 - 12:30 I 3.501 CASE I P 12:30 - 16:00 3.50 CASE P 16:00 - 16:30 0.50 CASE P 16:30 - 18:30 2.00 DRILL P 18:30 - 19:30 1.00 DRILL P 19:30 - 23:00 3.50 DRILL P 23:00 - 00:00 I 1.001 DRILL I P -20' Aluminum Billet with IBT P n RUNPRD Run in the hole with 4 1/2" liner on 4" drill pipe out of derrick from 3,142'to 8,953' -PUW = 141 K, SOW = 78K -Pump 3.5 BPM ~ 881 osi to release from liner. rnn of hiuPr a 5,813', shoe at 8,953' RUNPRD u ou o e o e rom 5,813'. RUNPRD Lay down Weatherford GS Spear and clean rig floor. PROD2 Make up BHA #27 as per Directional Driller -Rerun bit from BHA #26 -Load source -Run in hole 2 stands and stab safety valve PROD2 Rig Evacuation Drill PROD2 Run in hole with 4" drill pipe out of derrick from 478' to 5,534'. -Shallow hole test MWD at 1,147', good test PROD2 Waiting on mud sent to MI for centrifuging. Printed: 7/23/2008 2:28:44 PM BP Operations Summary Report ~-a Page 11 of 30 Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 6/7/2008 00:00 - 01:30 1.50 DRILL N PROD2 Waiting on mud for Displacement from VersaPro SF to VersaPro LS. NPT due to the availability of trucks. Waited 7 hrs on guzzler to empty cuttings box at MI mud plant. Also the efficiency that the rig ran the slotted liner did not allow sufficient time to recondition the MOBM. 01:30 - 02:30 1.00 DRILL P 02:30 - 03:30 1.00 DRILL P ~~ 03:30 - 06:30 I 3.001 DRILL I P 06:30 - 08:00 I 1.501 DRILL I P 08:00 - 12:00 I 4.001 DRILL I P 12:00 - 00:00 I 12.001 DRILL I P 6/8/2008 100:00 - 12:00 I 12.00 DRILL P 12:00 - 15:00 3.00 DRILL P 15:00 - 15:30 I 0.501 DRILL I P PROD2 Run in hole from 5,534' to 5,813', Tag billet at 5,818' PROD2 Displace wellbore from 9.4 ppg Versa ro o ppg VersaPro LS -260 GPM C~3 initial 1,840 psi, final 1,630 psi -Trench while displacing wellbore, from 5,798' to 5,818' -Motor stalls everytime billet is tagged PROD2 Time drill for open hole sidetrack from 5,818' to 5,828' -Estimate 1' of billet drilled before sidetracking -260 GPM ~ 1,630 psi PROD2 Dress up trench and open hole sidetrack area -Slide up and down multiple times without rotation, no sign of billet -300 GPM ~ 2,220 psi PROD2 Directional drill from 5,828' to 6,204', Geosteer as per Geologist, base of OBc at 6,420' -survey every 30' -Back ream 60' -Control drill <300'/hr -305 GPM ~ 2,290 psi off, 2,510 psi on -60 RPM ~ 4.5 KfUlbs off, 5.6 KWlbs on -PUW = 121 K, SOW = 76K, RWT = 94K, WOB = 0-20K PROD2 Directional drill from 6,204' to 7,210', Geosteer as per Geologist in OBc lateral -survey every 30' Back ream 60' -Control drill <300'/hr -310 GPM ~ 2,540 psi off, 2,585 psi on -60 RPM ~ 5.9 KWlbs off, 6.2 Kff/Ibs on -PUW = 135K, SOW = 75K, RWT = 95K, WOB = 0-20K PROD2 Directional drill from 7,210' to 8,574', Geosteer as per Geologist in OBc lateral, silty at the top and concretions at the bottom, looking for good sand -survey every 30' -Back ream 60' -Control drill <300'/hr -310 GPM ~ 2,530 psi off, 2,660 psi on -60 RPM ~ 6.1 KfUlbs off, 7.2 Kft/Ibs on -PUW = 135K, SOW = 70K, RWT = 95K, WOB = 0-10K PROD2 Directional drill from 8,574' to 8,990', Geosteer as per -surrey every 30' -Back ream 60' -Control drill <300'/hr -310 GPM ~ 2,600 psi off, 2,900 psi on -60 RPM ~ 6.3 KWlbs off, 7.3 Kff/Ibs on -PUW = 145K, SOW = 70K, RWT = 95K, WOB = 0-10K PROD2 Circulate one open hole volume Printed: 7/23/2008 2:28:44 PM gp Page 12 of 30 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 6/8/2008 15:00 - 15:30 0.50 DRILL P PROD2 -300 GPM ~ 2,730 psi -60 RPM ~ 6.2 Kft/Ibs 15:30 - 00:00 8.50 DRILL P PROD2 Back ream to clean well bore and MADD Pass for logs from 8,990' to 6,864' -600 FPH max -300 GPM ~ 2,485 psi -60 RPM ~ 5.6 Kft/Ibs ,6/9/2008 00:00 - 03:00 3.00 DRILL P PROD2 Continue Back reaming to clean well bore and MADD Pass for logs from 6,884' to 5,928' keeping top stabilizer 25' below billet. No problems while back reaming. -600 FPH max, 300 FPH from 6,100' to 5,928' for caliper data over packer area. -300 GPM ~ 2,298 psi -60 RPM ~ 5.6 KfUlbs 03:00 - 04:00 1.00 DRILL P PROD2 Pull out of hole from 5,928' to 5,813', saw a 20K over pull on weight indicator, stop and try to go back down past 5,813'. Stack 15K but could not get past 5,813', pull up above billet an pump to c ec orientation o motor, mo or Oriente ow side. shut down Dumps and attempt to run in past 5,813 with no success. rwi out to the snoe at 5,5a3' without rotation or pumps. 04:00 - 05:00 1.00 DRILL P PROD2 Circulate until shakers clean up, took 3 bottoms up. -300 GPM ~ 2,400 psi 05:00 - 08:00 3.00 DRILL P PROD2 Service top drive, change out quill, change out dies in grabber, and adjust draw works brake. -Monitor well, well static 08:00 - 11:00 3.00 DRILL P PROD2 Pump dry job and pull out of hole. 11:00 - 12:30 1.50 DRILL P PROD2 La down BHA #27 as per Directional Driller 12:30 - 13:00 0.50 DRILL P PROD2 Clear rig floor and bring up components for BHA #28 13:00 - 13:30 0.50 DRILL P PROD2 Make u clean out BHA #28 with mill for dressin billet area. 13:30 - 16:30 3.00 DRILL P PROD2 Run in hole to shoe, ease out into open hole and tag up twice on cuttings beds. Had to wash down with rotation from 5,760' to 5,765'. 16:30 - 18:00 1.50 DRILL P PROD2 Shut down um sand attem t to slide ast billet takin wei ht at 5,815', pick u and wash down ast billet to 5,830' without rotation. Rotate and um to dress from 5,815' to 5,828' with watermellon mill. -200 GPM C~3 730 psi -60 RPM ~ 5.6K -PUW = 125K, SOW = 80K, RWT = 95K -Shut down pumps and work through billet area dry with no problems three times. -No metal debris in bottoms up. 18:00 - 21:00 3.00 DRILL P PROD2 Decide to run to bottom and perform displacement. A' n P mill is pushin somethin ahead fit Tried to circulate down with no success, took rotation and 25 Klbs to get obstruction moving again. Run in hole taking weight intermittently. 21:00 - 22:00 1.00 DRILL P PROD2 Circulate bottoms up prior to displacing wellbore to SFMOBM -400 GPM ~ 3,100 psi -60 RPM ~ 5.6 Kft/Ibs -Reciprcate pipe 70' -Shakers clean after 1 bottoms up. Printed: 7/23/2008 2:28:44 PM gp Page 13 of 30 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date I From - To Hours Task i Code i NPT Phase Description of Operations 16/9/2008 122:00 - 00:00 I 2.00 I DRILL P 16/10/2008 00:00 - 02:30 2.50 DRILL P 02:30 - 03:00 0.50 DRILL P 03:00 - 03:30 I 0.501 DRILL I P 03:30 - 05:30 2.00 I DRILL P 05:30 - 06:00 0.50 DRILL P 06:00 - 06:30 0.50 DRILL P 06:30 - 07:00 0.50 CASE P 07:00 - 07:30 0.50 CASE P 07:30 - 12:00 4.50 CASE P 12:00 - 12:30 0.50 CASE P 12:30 - 17:30 5.00 CASE P 17:30 - 18:00 0.501 CASE P 18:00 - 22:00 I 4.001 CASE I P 22:00 - 22:30 0.50 CASE P 22:30 - 00:00 1.50 BOPSU P 6/11/2008 00:00 - 00:30 0.50 BOPSU P 00:30 - 06:00 5.50 BOPSU P 06:00 - 07:00 1.00 BOPSU~P 07:00 - 09:00 2.00 DRILL P 09:00 - 09:30 0.50 DRILL P 09:30 - 10:00 0.50 DRILL P 10:00 - 12:30 2.50 DRILL P PROD2 Displace wellbore from 9.3 ppg VersaPro LS to 9.3 ppg VersaPro SF -400 GPM ~ 3050 psi -60 RPM ~ 6.0 Kft/Ibs -Reciprocate Pipe 70' -MW in 9.3 ppg, MW out 9.3 ppg PROD2 Pull out of hole from 8,990' to 5,835' without any problems. PROD2 Pump out from billet at 5,835' to shoe at 5,583'. -301 GPM ~ 1,474 psi. PROD2 Circulate bottoms up at the shoe -414 GPM C~3 2,306 psi -MW in 9.3 ppg, MW out 9.3 ppg PROD2 Monitor well, well static -Pull out of hole from 5,583' to BHA PROD2 Lay down BHA #28 PROD2 Clean and clear rig floor. RUNPRD Ri u to run 4.5" Slotted/Solid Liner for OBc Lateral. RUNPRD H2S Drill with all rig personnel and contractors on location. RUNPRD PJSM. RIH with 4.5" 12.6# L-80 IBT slotted/solid Liner to 3215'. -Ave TO = 2800 ft-Ibs RUNPRD Make up GS Spear and insert into Aluminum Billet. -Make up Billet to liner and RIH. RUNPRD RIH with 4.5" liner on 4" DP. -145k Up Wt, 75k Dn Wt. RUNPRD Tag bottom ~ 8890'. -Pick up 5' for pipe stretch and pump ~ 4 bpm, 1100 psi to release aluminum billet ~ 5751'. -Good indication that spear released from billet - 125k Up, 75k Dn. RUNPRD POH to shoe ~ 5580'. -CBU ~ 250 gpm, 2100 psi. -Pump dry job and POH to surface. -Lay down GS Spear. RUNPRD Clean and clear rig floor. PROD3 PJSM. Drain stack and pull wear ring. -Flush the stack with Johnny Whacker, then drain stack. -Rig up 4" Test Joint and plug for BOP test. PROD3 Continue rigging up to test BOPE. PROD3 Test BOPE. . -Test all BOP related equipment to 250 psi low / 3500 psi high. -Test lower 2-7/8" x 5" VBR, upper 3-1/2" x 6" VBR, and Annular with 4" test joint to 250 psi low / 3500 psi high. -Test lower and upper rams with 4.5" test joint 250 psi low / 3500 psi high. -Witness of test waived by AOGCC Rep Lou Grimaldi. Test Witnessed by WSL Mark Staudinger and NTP Roy Hunt. PROD3 Rig down and blown down all testing equipment. -Pull test plug and install wear ring. PROD3 Make up Drilling BHA #29 as per Directional Driller. -RIH with Flex Drill Collars and Jars to 287'. PROD3 RIH with BHA #29 to 1717'. PROD3 Shallow test MWD w/291 gpm, 1699 psi -good. PROD3 RIH with from 1717' to 5537'. Printed: 7/23/2008 2:28:44 PM ~ • gp Page 14 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code ~ NPT ~ Phase Description of Operations 6/11/2008 10:00 - 12:30 2.50 DRILL P PROD3 -115k Up Wt, 87k Dn Wt. 12:30 - 14:00 1.50 DRILL P PROD3 Slip and cut 87' of drilling line. -Service top drive, crown, and drawworks brake linkage. 14:00 - 15:00 1.00 DRILL P PROD3 Make up top drive and displace from 9.3 ppg Solids Free Oil Based Mud to 9.3 ppg Low Solids OBM. -Dis lace ~ 300 m 2620 si, 60 RPM, 4.2k ft-Ibs TO. 15:00 - 00:00 9.00 DRILL P PROD3 Trench Aluminum Billet from 5751' to 5791'. Directional Drill ahead from 5791' to 6394'. -300 gpm ~ 2400 psi on / 2150 psi off -60 RPM with 6.2k ft-Ibs TO on / 6.Ok ft-Ibs TO off ~- ~ ~ -WOB = 5-10k -125k Up Wt, 80k Dn Wt, 95k Rot Wt -Survey every 30' and backream 60' on connections. 6/12/2008 00:00 - 12:00 12.00 DRILL P PROD3 Continue directional drilling in OBd lateral from 6394' to 7780'. -Pumps ~ 300 gpm, 2734 psi on, 2620 psi off. -Rotary ~ 60 rpm with 6.9k ft-Ibs TO on, 6k ft-Ibs TO off. -WOB = 5-10k lbs. -125k Up Wt, 65k Dn Wt, 90k Rot Wt -Survey every 30', Backream 60' on connections. -MW in and out = 9.3 ppg. 12:00 - 23:30 11.50 DRILL P PROD3 Continue directional drilling in OBd lateral to TD ~ 8965' MD 4482' TVD -Pumps ~ 300 gpm, 2800 psi on, 2750 psi off -Rotary ~ 60 rpm with 6.8k ft-Ibs TO on, 6.3k ft-Ibs TO off. -WOB = 5-10k lbs. -145k Up Wt, 75k Dn Wt, 95k Rot Wt -Survey every 30', Backream 60' on connections. -MW in and out = 9.4 ppg. 23:30 - 00:00 0.50 DRILL P PROD3 CBU ~ 300 gpm, 2730 psi. -60 rpm ~ 6.4k ft-Ibs TO. 6/13/2008 00:00 - 00:30 0.50 DRILL P PROD3 CBU @ 300 gpm, 2730 psi. -60 RPM ~ 6.4k ft-Ibs TO 00:30 - 12:00 11.50 DRILL P PROD3 Backream and MAD Pass from 8965' to 5863' at 600 fph. -MAD Pass ~ 300 fph for Density Data as per Geologist (8131' to 8031', 7631' to 7531', and 5963' to 5863') -300 gpm C~ 2500 psi. -60 rpm @ 6k ft-Ibs TO -143k Up Wt, 69k Dn Wt, 95k Rot Wt -Pull inside shoe ~ 5580' 12:00 - 13:00 1.00 DRILL P PROD3 CBU X2 ~ 310 gpm, 2200 psi. -Rotate ~ 60 rpm, 4.4k ft-Ibs TO -Reciprocate pipe 90' strokes. -145k Up Wt, 90k Dn Wt, 95k Rot Wt 13:00 - 13:30 0.50 DRILL P PROD3 Service Top Drive -Grease Wash Pipe 13:30 - 14:30 1.00 DRILL P PROD3 Orient Bit 140 degrees left, RIH and work past billet ~ 5751'. -Did not hang up while RIH through billet and saw slight bobble on weight indicator while POH past billet. -Continue to RIH from 5880' to 6490'. -145k Up Wt, 75k Dn Wt -While RIH, Bearings failed on Electric Emalgo Brake. 14:30 - 15:00 0.50 DRILL N RREP PROD3 POH inside shoe to 5531' -Circulate across top of hole 15:00 - 00:00 9.00 DRILL N RREP PROD3 Prepare to remove and repair Emalgo Brake (Dyno-matic). Printed: 7/23/2008 2:28:44 PM gP Page 15 of 30 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase ~ Description of Operations 6/13/2008 15:00 - 00:00 9.00 DRILL N RREP PROD3 -Spot Peak Crane Crew next to beaver slide. -Hold PJSM with Rig Crew, Pad Operator Dave Kindred, BP Safety Rep Allen Graff, WSL Mark Staudinger, NAD Safety Rep Mark Mosbrucker, NTP Brian Tiedemann, and Peak Crane Crew Dan Abila and Barry Meek for the critical lift (Blind Lift) -Pick Emalgo Brake out of Drawworks and place in shop to replace bearings. 6/14/2008 00:00 - 12:00 12.00 DRILL N RREP PROD3 Work on Emalgo Brake in Shop and found that bearings had welded to shaft. -Send Emalgo Brake to NOC Yard in Deadhorse for rebuild -Wait on replacement shaft and bearings -Clean and service top drive, housekeeping, clean inside drawworks, and change out leaking O-rings for top drive grabber while waiting. 12:00 - 00:00 12.00 DRILL N RREP PROD3 Continue to wait on repair of Emalgo Brake ~ NOC Yard. -Replacement shaft shipped up from town. -Continue to service, clean, and organize rig while waiting. -CBU x1 f!~ 2 bpm, 340 psi. 6/15/2008 00:00 - 09:00 9.00 DRILL N RREP PROD3 Continue to Wait on Repairs to Emalgo Brake in NOC Yard. -Continue to service, clean, and organize rig. 09:00 - 16:30 7.50 DRILL N RREP PROD3 Crane and rebuilt Emalgo Brake arrived on location. -Spot crane and prep for critical lift (blind lift). -Hold PJSM with Pad Operator Dan Dacs, BP and NAD Safety Reps (Allen Graff and Mark Mosbrucker), WSL Tom Anglen, NTP Kelly Cozby, Peak Crane Crew, and Rig Crew. -Pick and install Emalgo Brake into Drawworks. -Function test all brakes - ok. 16:30 - 17:30 1.00 DRILL N RREP PROD3 Make up Top Drive and place bit outside of shoe ~ 5900'. -CBU xi ~ 300 gpm, 2300 psi. -Orient bit ~ 140 degrees. 17:30 - 18:00 0.50 DRILL N RREP PROD3 RIH slick from 5580' to 6100'. 18:00 - 19:30 1.50 DRILL P PROD3 Continue to RIH slick to TD ~ 8965'. 19:30 - 20:00 0.50 DRILL P PROD3 Make up top drive and wash last stand to bottom. -CBU xi ~ 300 gpm, 2800 psi. -Rotate ~ 70 rpm, 5.2k ft-Ibs TO. -Reciprocate pipe 30' strokes. 20:00 - 22:00 2.00 DRILL P PROD3 Displace well to 9.3 ppg SFMOBM ~ 300 gpm, 2900 psi. -Rotate ~ 70 rpm, 6.1 k ft-Ibs TO. -Reciprocate pipe 95' strokes -145k Up Wt, 85k Dn Wt, 95k Rot Wt. -Monitor Well -Static. 22:00 - 00:00 2.00 DRILL P PROD3 Pump dry job and POH from 8965' to 6299'. -130k Up Wt, 80k Dn Wt. 6/16/2008 00:00 - 00:30 0.50 DRILL P PROD3 Continue to POH slick from 6299' to shoe ~ 5582'. -Ran slow past billet ~ 5751' -good. -Monitor well ~ shoe -static. 00:30 - 03:30 3.00 DRILL P PROD3 Continue to POH from 5582' to 229'. 03:30 - 06:00 2.50 DRILL P PROD3 PJSM. Lay down BHA #29. 06:00 - 06:30 0.50 DRILL P PROD3 Clean and clear rig floor. 06:30 - 08:00 1.50 CASE P RUNPRD Ri u to run 4.5" OBd Lateral Liner. 08:00 - 12:00 4.00 CASE P RUNPRD RIH with 4-1/2" 12.6# L-80 Slotted BTC /Solid IBT Liner as per running detail to 1141'. Printed: 7/23/2008 2:28:44 PM gp Page 16 of 30 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To 'i Hours I Task Code ~ NPT ~~ Phase Description of Operations 6/16/2008 08:00 - 12:00 4.00 CASE P RUNPRD -Use BOL 2000 Dope. Ave TO = 2800 ft-Ibs. -RIH @ 90 fpm 12:00 - 16:30 4.50 CASE P RUNPRD Continue to RIH with 4-1/2" 12.6" L-80 Slotted/Solid and 13Cr-80 Vam Top Liner as per detail to 3872'. -Reduce running speed to 60 fpm due to mud flowing up Liner. -Use BOL 2000 dope on BTC/IBT and Jet Lube Seal Gaurd on Vam Top -TO BTC/IBT to 2800 ft-Ibs. TO Vam Top to 4440 ft-Ibs. TO Hydril 563 to 6000 ft-Ibs. -Obtain PU and SO Wts every 25 joints. -Make u han er and Liner To Packer as per BOT Rep. -Liner Up Wt = 80k, Dn Wt = 70k. 16:30 - 17:00 0.50 CASE P RUNPRD Rig down liner running equipment. 17:00 - 22:30 5.50 CASE P RUNPRD Continue to RIH w/ 4.5" Liner on 4" DP from derrick ~ 60 fpm -Obtain PU and SO Wts every 10 stands. -110k Up Wt, 85k Dn Wt ~ 7-5/8" Shoe (5582') -RIH and tag bottom ~ 8965', Pick up pipe strech + 9' to 22:30 - 00:00 I 1.501 CASE I P 6/17/2008 100:00 - 01:00 I 1.00 I CASE I P 01:00 - 03:00 I 2.001 CASE I P 03:00 - 04:00 1.00 CASE P 04:00 - 06:30 2.50 EVAL P 06:30 - 09:00 I 2.50 I EVAL I P 09:00 - 09:30 0.50 EVAL P 09:30 - 10:30 1.00 EVAL P 10:30 - 14:30 I 4.001 STWHIPI P 14:30 - 16:30 2.001 STWHIP P -150k Up Wt, 60k Dn Wt ~ TD. RUNPRD Drop 1.75" Ball and pump down ~ 4 bpm. Slow to 2 bpm and bump ball on seat. -Pressure up to 1700 psi to set liner hanger and slack off 20k to confirm set -good. -Bleed off and pressure back up to 4000 psi to set Liner Top -Bleed off to release the running tool from packer. -Pick up 1', close rams, and pressure up backside to 2000 psi for 5 minutes to check LTP -good test. -Pick up and expose dog subs above LTP. Slack off and locate LTP ~ 5101' DPM. RUNPRD CBU x1 ~ 4 bpm, 500 psi. Monitor Well -Static. RUNPRD Pump Dry Job and POH from 5101' to Liner Running Tool, racking back 4" DP and HWDP. RUNPRD Lay down Liner Running Tools. Clean and clear rig floor. INT1 PJSM with SWS crew and rig crew. Spot and Rig up SLB Wireline Unit. -Make up USIT logging tools and function test - OK INT1 Loa with USIT from 5090' to surface -TOC ~ 3670' -Cement stringers to 3028' INT1 Rig down logging tools and service top drive and crown. INT1 Clean and clear floor and prepare for running whipstock and mill assembly WEXIT PJSM, with Baker Rep, Schlumberger Crew, NAD Rig Crew, BP WSL Tom Anglen, and NAD Toolpusher Kelly Cozby -Make up and run in hole with Whipstock and Mill assembly to 842' -BHA made up to Baker and Schlumberger specifications. WEXIT RIH from 842' to 1100' -Shallow tested tools ~ 240 gpm , 830 psi -Good Test -Continued to RIH from 1100' to 5002' ~ 60 ft/min. -Orient whipstock @ -28 deg. left with TOW ~ 5002' Printed: 7/23/2008 2:28:44 PM • • gp Page 17 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 6/17/2008 16:30 - 17:00 0.50 STWHIP P WEXIT Make up pipe to top drive and fill pipe ~ 260 gpm, 1500 psi 7:00 - 17:30 .50 TWHIP P EXIT -Up Wt. 135k /Down Wt. 35k -Oriented to -28 deg left -Slack off 15k to shear anchor -Pick up 10k over and slack off 40k to shear bolt and find neutral point Dis lace to 9.3 oil base mud f~ 300 gpm , 1835 psi 17:30 - 00:00 6.50 STWHIP P WEXIT Begin to mill with TOW ~ 5002' -122 spm ~ 300 gpm, 1720 psi -80 RPM 6/18/2008 00:00 - 03:00 3.00 STWHIP P WEXIT -Torque 5.6k ~ ~~~ ~ °~ Continue to mill from 5015' to 5040' `J -132 spm ~ 323 gpm, 1846 psi -100 RPM -Torque 5k -Worked and wiped pipe past window with no snags -TOW 5002' /BOW 5015' 03:00 - 04:30 1.50 STWHIP P WEXIT Circulate 2x bottoms up -Pump 50 bbl Super Sweep and circulated out -130 spm X320 gpm , 1820 psi -Returns did not increase and metal shavings were still minimal after sweep was circulated out -Monitored well -Static -Mud Wt In 9.1 ppg / Out 9.1 ppg 04:00 - 07:00 3.00 STWHIP P WEXIT Pull out of hole from 5040' to 472'. -Up Wt. 118k /Down Wt. 98k -Mud Wt. In 9.3ppg /Out 9.3 ppg 07:00 - 09:00 2.00 STWHIP P WEXIT Stand back 4 3/4" Drill Collars -Laydown the milling assembly -Upper Mill was in Gauge -Clean and clear floor 09:00 - 10:30 1.50 STWHIP P WEXIT Pulled the wear ring and flushed out the stack. -Replaced the wear ring 10:30 - 12:00 1.50 STWHIP P WEXIT Picked up BHA # 31 and began to run in hole BHA # 1 -6 3/4" Hyclog DSX146H -AIM PDM -Bypass Sub -Float -MWD -NM Flex Drill Collars -Hydraulic Jars -HWDP 12:00 - 13:00 1.00 STWHIP P WEXIT PJSM, with Schlumberger and NAD Rig Crew about radioactive sources -Continued to M/U BHA # 31 as per Schlumberger 13:00 - 16:30 3.50 STWHIP P WEXIT Run in hole to 1100' -Shallow tested MWD -Good Test -Continued to Run in hole to 4942', oriented bit and worked through window.-No problems -Reamed from 5002' to 5025' -Mud Wt. In 9.3 ppg /Out 9.3 ppg 16:30 - 00:00 7.50 DRILL P PROD4 Drill from 5040' to 5634' Printed: 7/23/2008 2:28:44 PM • gp Page 18 of 30 Operations Summary Report '...,Legal Well Name: L-205 (Common Well Name: L-205 Spud Date: 4/27/2008 'Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 .Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 6/18/2008 16:30 - 00:00 7.50 DRILL P PROD4 - 125 spm ~ 300 gpm , 2300 psi on / 2200 psi off -Torque 4.6k on / 4.2k off -WOB 0-5k -Up Wt. 120k /Down Wt. 75k /ROT Wt. 95k -Back Reamed 30' on every connection 6/19/2008 00:00 - 12:00 12.00 DRILL P PROD4 Drill from 5634' to 6490' - 121 spm (~ 300 gpm , 2335 psi on / 2260 psi off -Torque 5.5k on / 5k off -WOB 5-10k -Up Wt. 111 k /Down Wt. 75k /ROT Wt. 90k -Back Reamed 30' on every connection -Survey taken every 30' -Mud Wt. In 9.3 ppg /Out 9.3 ppg 12:00 - 00:00 12.00 DRILL P PROD4 Drill from 6490' to 7719' - 125 spm ~ 300 gpm , 2340 psi on / 2200 psi off -Torque 6.5k on / 6.2k off -WOB 0-10k -Up Wt. 130k /Down Wt. 65k /ROT Wt. 93k -Back Reamed 30' on every connection -Survey taken every 30' -Mud Wt. In 9.3 ppg /Out 9.3 ppg 6/20/2008 00:00 - 10:30 10.50 DRILL P PROD4 Drill from 7719' to 8850' - 123 spm ~ 300 gpm , -2712 psi on / 2579 psi off -Torque 6.1 k on / 5.9k off -WOB 0-10k -Up Wt. 119k /Down Wt. 65k /ROT Wt. 89k -Back Reamed 30' on every connection -Survey taken every 30' -Mud Wt. In 9.3 ppg /Out 9.3 ppg -TD called C~ 8850' MD , 4314' TVD as er Geolo ist . 10:30 - 11:30 1.00 DRILL P PROD4 Circulate and condition as per geologist for gas sample -123 spm ~ 300 gpm , 2599 psi -Torque 5.9k -RPM 60 -Monitor Well -static -Mud Wt. In 9.3 ppg /Out 9.3 ppg 11:30 - 12:00 0.50 DRILL P PROD4 MAD Pass from 8850' to 8760' -123 spm ~ 300 gpm , 2590 psi , 600 fph -Torque 5.3k -RPM 60 12:00 - 16:30 4.50 DRILL P PROD4 MAD Pass from 8760' to 8046' -123 spm ~ 300 gpm , 2590 psi , 600 fph -Torque 5.6k -RPM 60 -Reduced running speed to 300 fph from 8046' to 7856' -Increased ann. pressure of 50-120 psi -Made 3 attempts ~ 7640' to ream with no success 16:30 - 17:30 1.00 DRILL P PROD4 Pumped 20 bbl hi-vis sweep -125 psm ~ 303 gpm , 2430 psi -Torque 5.3k -RPM 80 -Worked i e from 7640' to 7700' -No increase in returns from hi-vis sweep Printed: 7/23/2008 2:28:44 PM • gp Page 19 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To I Hours Task Code NPT Phase Description of Operations 6/20/2008 17:30 - 00:00 6.50 DRILL P PROD4 -MAD Pass from 7640' to 6670' -123 spm ~ 301 gpm , 2340 psi , 50-200 fph -Torque 5.7k -RPM 80 -Annulus continues to show signs of packoff and increase in psi -Worked and reamed pipe -Reamed clean from 7505' to 6769' with 1 tight spot @ 7000' 6/21/2008 00:00 - 08:30 8.50 DRILL P PROD4 -MAD Pass from 6769' to 5700' -123 spm @ 301 gpm , 1930 psi , 300 fph -Torque 5k -RPM 60 / ROT 105k -From 5700' to 5045' no rotation -Had to work the pipe ~ 5400' due to tight spot -Continued to pull from 5045' to 4969' -Did not pump while pulling through window with no problems 08:30 - 10:00 1.50 DRILL P PROD4 Circulated 3 bottoms up ~ 4969' to clean up the hole -122 spm l~ 299 gpm , 1930 psi -Monitored well- static 10:00 - 12:00 2.00 DRILL P PROD4 Slip and cut 91' of drilling line -Serviced top drive, drawworks, and rotary table 12:00 - 13:30 1.50 DRILL P PROD4 Ran back in hole from 4969' to 5538' -Up Wt. 113k /Down Wt. 88k -MAD Pass from 5538' to 5422' without rotating -123 spm ~ 300 gpm , 2106 psi 13:30 - 15:00 1.50 DRILL P PROD4 Ran in hole from 5422' to 8763' 15:00 - 16:00 1.00 DRILL P PROD4 Fill pipe and washed to bottom from 8763' to 8850' -Ciculated a bottoms up -123 spm @ 300 gpm , 2696 psi -RPM 80 Torque 5-6k 16:00 - 17:00 1.00 DRILL P PROD4 Displace mud system from 9.3 ppg LS MOBM to 9.2 ppg SF MOBM -123 spm ~ 300 gpm , 2726 psi -RPM 80 -Torque 6.4k 17:00 - 22:00 5.00 DRILL P PROD4 Monitor Well -Static -Pumped dry job -Began to pull out of the hole from 8850' to 4969' -Up Wt. 132k /Down Wt. 74k -Monitored well ~ window -static -Continued to pull from 4969' to 288' -Mud Wt. In 9.2 ppg /Out 9.2 ppg 22:00 - 00:00 2.00 DRILL P PROD4 Laydown BHA # 31 -Stand back Jars -PJSM with Schlumberger,NAD Rig Crew, NAD Tourpusher, and BP WSL about removal of Radioactive Sources. -Laydown Flex Collars 6/22/2008 00:00 - 00:30 0.50 DRILL P PROD4 Finish laying down BHA # 31 -Bit was in gauge and in good condition 00:30 - 01:00 0.50 DRILL P PROD4 Clean and clear floor of Schlumberger tools and prepare to run Whipstock Retrieval tool 01:00 - 02:00 1.00 WHIP P RUNPRD Pick up BHA # 32 and run in hole to 381' Printed: 7/23/2008 2:28:44 PM • gp Page 20 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: i Date I From - To Hours Task Code NPT Phase Description of Operations 6/22/2008 01:00 - 02:00 1.00 WHIP P RUNPRD -Whi stock Retrieval Tool -Magnet -HWDP -Float Sub -MWD -Bumper Sub -Jars -Drill Collars -Cross Over 02:00 - 05:00 3.00 WHIP P RUNPRD Run in hole from 381' to 4980' -Up Wt. 115k /Down Wt. 85k -Oriented Whipstock Retrieval Tool -Ran in from 4980' to 5010' -Indicator of hooking whipstock ~ 5007'_ -Up Wt. 125k /Down Wt. 85k -Over pull of 95k to release bottom trip anchor -Pull out of the hole to 4966' 05:00 - 06:00 1.00 WHIP P RUNPRD Circulate 2 bottoms up C~3 4966' -119 spm ~ 291 gpm , 1605 psi -Pump Dry Job -Monitor Well- static -Mud Wt. In 9.3 ppg /Out 9.3 ppg 06:00 - 09:00 3.00 WHIP P RUNPRD Pull out of the hole from 4966' to 107' -Racked back the Drill Collars 09:00 - 11:00 2.00 WHIP P RUNPRD Continue to laydown the Whipstock Retrieval BHA -Whipstock showed wear of tracking right at the bottom, but was in good condition. Mill followed whipstock to the bottom for a full length window. -Debris found on magnet no more than 1 cup 11:00 - 12:30 1.50 WHIP P RUNPRD Layed down Baker tools ,clean and cleared the rig floor 12:30 - 13:30 1.00 CASE P RUNPRD Rio uo to run 4 1/2" slotted /solid liner 13:30 - 21:00 7.50 CASE P RUNPRD PJSM, with NAD Rig Crew, Baker Rep., NAD Casing Crew -Make up 12.6# L-80 IBT/BTC slotted and solid liner with swell packers to the recommended torque of 3500 Wlbs using BOL 2000NM -Up Wt. 80k /Down Wt. 70k -Circulated 13 spm ~ 31 gpm , 86 psi 21:00 - 21:30 0.50 CASE P RUNPRD Rig down 4 1/2" liner running tools 21:30 - 22:30 1.00 CASE P RUNPRD Run 4 1/2" liner in on 4" drill pipe from 3850' to 4968' 22:30 - 00:00 1.50 CASE P RUNPRD Obtain Parameters for running bent joint into open hole -Up Wt 100k /Down Wt. 85k -T~aaed No-Go at 5120' when attemotina to exit window -Attempted 3 times 6/23/2008 00:00 - 00:30 0.50 CASE P RUNPRD Tagged No-Go ~ 5120' -Picked up to window and rotated the drillstring 1 3/4 turns -Went through window ~ 5015' -Continued to run in hole ~ 60 fph -Up Wt. 100k /Down Wt. 85k 00:30 - 04:00 3.50 CASE P RUNPRD Continued in hole 8840' -Han er hooked casin ~~ 4998' -on de th -Picked up and rotated 1/4 turn and ran to 8845' -Picked up and rotated 1/4 turn and ran to 8840' -hanger did not hook Printed: 7/23/2008 2:28:44 PM • gp Page 21 of 30 ~ Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase 'I Description of Operations 6/23/2008 00:30 - 04:00 3.50 CASE P RUNPRD I -Picked up and rooted 1/4 turn and ran to 8840' -hat nger hooked on depth ~ 4998' S/O wt. reduced from 75k before hooking to 35k after 04:00 - 04:30 I 0.501 CASE I P 04:30 - 05:00 0.50 CASE I P 05:00 - 08:30 3.501 CASE P 08:30 - 09:00 0.50 CASE P 09:00 - 10:00 1.00 TIEBAC P 10:00 - 13:00 3.00 TIEBAC P 13:00 - 13:30 0.50 TIEBAC P 13:30 - 16:30 3.00 TIEBAC P 16:30 - 17:30 1.00 TIEBAC P 17:30 - 18:00 I 0.501 TIEBAC I P hooking -Up Wt 140k /Down Wt. 75k RUNPRD Dropped ball to shear HR rur -Pressured up to 4300 psi ~ 1247 strokes when sheared -Picked up to 4944' and circulated bottom up -Up Wt. 120k RUNPRD Pumped dryjob - 81 spm ~ 198 gpm , 585 psi -Monitored well -static -Mud Wt In 9.3 ppg / Out 9.3 ppg -Pulled out of hole from 4944' to 4300' RUNPRD -Continued to pull out of the hole from 4300' -Layed down the BHA RUNPRD Clean and cleared floor of Baker Tools OTHCMP Ria up to run casino eauipment for LEM # 1 run OTHCMP PJSM, with Baker Hands, NAD Casing hand, NAD Rig Crew, NAD Toolpusher and BP WSL. -Torque turn Vam Top to 4400 ft/Ibs and doped with Jet Lube Seal Guard -Rig up false floor and change out elevators -M/U LEM # 1 with EUE 2 3/8" work string -M/U 5 1/2" Hydril to 5500 ft/Ibs -Up Wt 40k /Down Wt. 40k OTHCMP Rig down casing equipment used to make up LEM # 1 OTHCMP Run in hole from 216' to 4964' OTHCMP Slack off to 5060' -Up Wt. 123k /Down Wt. 90k -Pumped 52 spm ~ 127 gpm , 650 psi -Entered Seal Bore ~ 5132' -Pressure increase and down wt reduced to 83k ,Latch Up -Seals were located on depth ~ 5143' -Slack off to 50k, then pick up and unlatch ~ 160k; Relatch LEM. -Up Wt. 100k /Slack off Wt. 50k OTHCMP Drop 1 3/4" ball to seat -2 bpm @ 442 psi -Increase in psi up to 3100 -Hold -Increase to 4100 psi -set packer and release running tool -Pressure Test 7 5/8" annulus to 1500 psi for 5 minutes- gooc -Pick up to 5060' and monitor well -static -Pumped dry job and blow down lines 18:00 - 21:00 21:00 - 23:00 23:00 - 00:00 6/24/2008 00:00 - 02:30 3.00 TIEBAC P 2.00 TIEBAC P 1.00 TIEBAC P 2.50 STWHIP P OTHCMP Pull out of the hole from 5060' to 216' OTHCMP Laydown LEM running tool and 2 3/8" EUE work string OTHCMP Rig down LEM running tools and clean and clear the floor WEXIT Make up and run in hole with Whipstock Assembly BHA -Anchor,magnet, whipstock slide, window mill, float sub Printed: 7/23/2008 2:28:44 PM ~ ~ ~'\ gp Page 22 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: i Date From - To Hours Task Code; NPT Phase Description of Operations 6/24/2008 00:00 - 02:30 2.50 STWHIP P WEXIT -Run in hole to 844' 02:30 - 03:00 0.50 STWHIP P WEXIT Shallow test the MWD tool- good test -107 spm ~ 262 gpm , 887 psi 03:00 - 04:00 1.00 STWHIP P WEXIT Run in hole from 844' to 2761' with Whipstock Assembly BHA 04:00 - 05:00 1.00 STWHIP P WEXIT Service rig -Grease top drive, drawworks, and crown 05:00 - 06:00 1.00 STWHIP P WEXIT Continue in hole from 2761' to 4895' 06:00 - 06:30 0.50 STWHIP P WEXIT Orient whipstock to -19 deg. -Up Wt. 120k /Down Wt. 85k -Slacked off 14k to set anchor - postive indication of setting -Slack off 35k to shear lug -positive indication of setting -Pick up 90k and rotate 14 rpm ,Torque 4k 06:30 - 07:30 1.00 STWHIP P WEXIT Displace to LSMOBM -114 spm ~ 279 gpm , 1630 psi -Mud Wt. In 9.2 ppg / Out 9.2 ppg 07:30 - 11:00 3.50 STWHIP P WEXIT i win ow or -ROT 95k , WOB 1-3k , 60-95 rpm -Torque 4-5k -102 spm ~ 250 gpm , 1250 psi ~ -TOW 4841' BOW 4853' "'~ 11:00 - 12:00 1.00 STWHIP P WEXIT Begin to kick off into formation from 4853' to 4875' -ROT 95k , WOB 1-3k, 100 rpm -Torque 4.6 - 7k -102 spm ~ 250 gpm , 1250 psi 12:00 - 14:00 2.00 STWHIP P WEXIT Circulate 2 bottoms up -103 spm ~ 250 gpm , 1238 psi -Pump 50 bbl Hi-Vis Sweep - No increase in cuttings -Monitor Well -Static -Mud Wt. In 9.2 ppg /Out 9.2 ppg 14:00 - 15:30 1.50 STWHIP P WEXIT Pull out of hole from 4841' to 744' -Up Wt. 120k /Down Wt. 90k 15:30 - 17:30 2.00 STWHIP P WEXIT Stand back HWDP and Drill Collars -Lay down Milling Assembly -Clean and Clear Floor -Both upper and lower mills were in gauge when pulled out of the hole. 17:30 - 18:30 1.00 BOPSU P WEXIT Pull wear ring and flush out BOP stack 18:30 - 19:00 0.50 BOPSU P WEXIT Make up 4" test joint, floor valve, and install test plug 19:00 - 00:00 5.00 BOPSU P WEXIT Test BOPE. -Test all BOP related equipment to 250 psi low / 3500 psi high. -Test lower 2-7/8" x 5" VBR, upper 3-1/2" x 6" VBR, and Annular with 4" test joint to 250 psi low / 3500 psi high. 6/25/2008 00:00 - 01:00 1.00 BOPSU P WEXIT Continued to BOP Test -Test lower and upper rams with 4.5" test joint 250 psi low / 3500 psi high. -Witness of test waived by AOGCC Rep Jeff Jones. Test Witnessed by WSL Blair Neufeld and NTP Brian Tiedemann. 01:00 - 02:00 1.00 DRILL P PROD5 Clean and Clear floor and prepare to make up BHA # 34 02:00 - 03:30 1.50 DRILL P PROD5 PJSM, with Schlumberger, Rig Crew, and NAD Toolpusher before picking up radioactive sources Make up BHA # 34 and run in hole to 288' -Hycalog SDX513M-A2 Bit Printed: 7/23/2008 2:28:44 PM gP Page 23 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: ~ Date From - To Hours Task Code NPT Phase Description of Operations 6/25/2008 02:00 - 03:30 1.50 DRILL P PROD5 -Stabalizers -MWD -Drill Collars -Ciro Sub -Jars -HWDP 03:30 - 06:00 2.50 DRILL P PROD5 Run in hole to 1240' and function test MWD -good test -Continue in the hole from 1240' to 4110' 06:00 - 07:00 1.00 DRILL P PROD5 Service topdrive,crown, and drawworks. 07:00 - 07:30 0.50 DRILL P PROD5 Orient to highside at window. -Wash from 4860' to 4875', 267 GPM ~ 1810 psi. 07:30 - 12:00 4.50 DRILL P PROD5 Drill from 4875' to 5189'. -Up wt. 110k,down wt. 80k,rotating wt 90k. -60 RPM 3k torque off bottom,4-5k torque on bottom. -300 GPM, 2300 psi off bottom, 2440 psi on bottom. -Mud wt. in and out 9.2 ppg. 12:00 - 00:00 12.00 DRILL P PROD5 Drill from 5189' to 6527'. -Up wt. 115k,down wt. 76k,rotating wt 93k. -60 RPM 4k torque off bottom,5k torque on bottom. -300 GPM, 2390 psi off bottom, 2485 psi on bottom. -Mud wt. in and out 9.3 ppg. 6/26/2008 00:00 - 12:00 12.00 DRILL P PROD5 Drill from 6527' to 7942'. -Up wt. 120k,down wt. 70k,rotating wt 95k. -60 RPM 4-5k torque off bottom,5-9k torque on bottom. -300 GPM, 2470 psi off bottom, 2520 psi on bottom. -Mud wt. in and out 9.4 ppg. -Survey every 30'. -Back ream 30' on connections. 12:00 - 23:00 11.00 DRILL P PROD5 Drill from 7942' to 8763'. -Up wt. 123 ,down wt. 68k,rotating wt 91k. -60 RPM 5k torque off bottom,5.5k torque on bottom. -300 GPM, 2600 psi off bottom, 2667 psi on bottom. -Mud wt. in and out 9.3 ppg. -Survey every 30'. -Back ream 30' on connections. 23:00 - 00:00 1.00 DRILL P PROD5 Circulate annular volume. -300 GPM ~ 2587 psi. -Record slow pump rates. -Monitor well,static. -Mud wt. in and out 9.3 ppg. -38 bblsVersa Pro lost (cuttings very wet off shakers) 6/27/2008 00:00 - 12:00 12.00 DRILL P PROD5 Backream /MAD-PASS logging with LWD 8763'-5729' -300 GPM (~ 2539 psi -60 RPM, 6k torque ~ 600 FPH 12:00 - 15:30 3.50 DRILL P PROD5 Backream /MAD-PASS logging with LWD 5729'-5150' -300 GPM ~ 2539 psi -60 RPM, 6k torque ~ 600 FPH -Pull dry from 5150' to inside window. -Pull 20k over ~ 4877'(stabilizer in window) -Swabbing inside casing ~ 4830' -16 bbls mud lost to hole while logging. 15:30 - 17:30 2.00 DRILL P PROD5 Break circulation ~ 4830',stage pumps up to 300 GPM ~ 2065 psi. Printed: 7/23/2008 2:28:44 PM • gp Page 24 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date ~ From - To Hours Task ~ Code NPT Phase Description of Operations 6/27/2008 15:30 - 17:30 2.00 DRILL P PROD5 -Circulate 4 x bottoms up to clean casing. -1st bottoms up 80% excess cuttings. -2nd bottoms up 40% excess cuttings. 17:30 - 18:00 0.50 DRILL P PROD5 Service topdrive,drawworks,crown & blocks. 18:00 - 19:00 1.00 DRILL P PROD5 Slip & cut 71' drilling line. 19:00 - 21:30 2.50 DRILL P PROD5 Run in hole from 4777'to 8671' -Wash down to 8763' 60 RPM,7k torque. -300 GPM ~ 2680 psi. 21:30 - 22:30 1.00 DRILL P PROD5 Circulate bottoms up 300 GPM ~ 2680 psi. -Rotate 80 RPM ~ 6.5k torque. 22:30 - 00:00 1.50 DRILL P PROD5 Displace well to 9.2 ppg SFMOBM -298 GPM X2750 psi. -80 RPM ~ 6.5k torque. -Record slow pump rates. -Monitor well,static. -Pump dry job. -Mud wt. in and out 9.2 ppg. 6/28/2008 00:00 - 04:30 4.50 DRILL P PROD5 Pull out of the hole from 8763' to 4841' -Up Wt. 125k /Down Wt. 68k -Monitor well ~ window -static -Continued to pull from 4841' to 288' -Mud Wt. In 9.2 ppg /Out 9.2 ppg 04:30 - 06:00 1.50 DRILL P PROD5 Laydown BHA -Stand back Jars & Flex collars -PJSM with Schlumberger,NAD Rig Crew, NAD Tourpusher, and BP WSL about removal of Radioactive Sources. 06:00 - 07:00 1.00 WHIP P RUNPRD Make up whipstock retrieval assembly with HWDP and 9 drill collars. 07:00 - 08:00 1.00 WHIP P RUNPRD Run in hole to 1806' with "J" hook. 08:00 - 08:30 0.50 WHIP P RUNPRD Fill pipe,shallow test MWD, 269 GPM ~ 946 psi. 08:30 - 09:30 1.00 WHIP P RUNPRD Run in hole to 4841'. -Up wt 120k,down wt 85k 09:30 - 10:30 1.00 WHIP P RUNPRD Orient hook to 19 left and latch into whi stock..- -Stage weight up to 80k overpull,pulled free. -Pull whipstock 30' u hole and circulate bottoms up. -271GPM ~ 1452 psi. -Monitor well,static. - Mud weight in and out 9.3 ppg. 10:30 - 13:00 2.50 WHIP P RUNPRD POH with whipstock from 4841' to 107' 13:00 - 16:00 3.00 WHIP P RUNPRD Lay down Whipstock retrieval assembly. 16:00 - 17:00 1.00 CASE P RUNPRD Rig up to run 4 1/2", 12.6#, L-80 slotted liner. 17:00 - 00:00 7.00 CASE P RUNPRD Run 4 1/2", 12.6#, L-80, IBT liner. -RIH to 4015' Up wt 82k down wt 65k. -72 jts Slotted liner -18 jts. Solid liner -4 swell packers,7419',6915',5279',4925'. -88 Volant Hyroform centralizers free floating,8 locked down on swell packer pup joints. -Rig down casing equipment. -Break circulation. 6/29/2008 00:00 - 00:30 0.50 CASE P RUNPRD RIH from 4015' to window ~ 4841'. -Run in past window & tagged No-Go ~ 4863' Printed: 7/23/2008 2:28:44 PM • gp Page 25 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABORS 9ES Rig Number: Date ~ From - To Hours Task Code NPT Phase Description of Operations 6/29/2008 00:00 - 00:30 0.50 CASE P RUNPRD -Picked up to window and rotated the drillstring 1/2 turn -Went through window C~ 4841' -Continued to run in hole ~ 60 fph 00:30 - 03:30 3.00 CASE P RUNPRD Continued in hole 8763' -Missed hook, ran in to 8760' -Picked up and rotated 1/2 turn run in,hooked X4843' -Picked up and rotated 1/2 turn and ran to 8760 -hanger did not hook -Picked u and roated 1/2 turn and ran in to 8752' hooked -Han er hooked on de th X4853 -Up Wt 140k /Down Wt. 72k 03:30 - 04:30 1.00 CASE P RUNPRD Dro ped ball to shear HR running tool -Ball seated ~ 732 strokes -Pressure up to 2800psi to release. -Bleed off pressure,pick up 60' -Pressured up to 3400 psi to shear ball out. -Circulate bottoms up -Up Wt.120k 04:30 - 06:30 2.00 CASE P RUNPRD Pumped dryjob -Monitored well -static -Mud Wt In 9.3 ppg / Out 9.3 ppg -Pull out of hole 06:30 - 07:00 0.50 CASE P RUNPRD Lay down liner running tool. 07:00 - 08:00 1.00 TIEBAC P OTHCMP Rig up to run LEM & inner string. 08:00 - 10:00 2.00 TIEBAC P OTHCMP Pick up & make up LEM assembly and inner string. 10:00 - 10:30 0.50 TIEBAC P OTHCMP Clear floor of casing equipment. 10:30 - 14:00 3.50 TIEBAC P OTHCMP Run in hole with LEM assembl t 49 ' 14:00 - 16:30 2.50 TIEBAC P OTHCMP Wash down to 4959' -Set down,did not latch -Pick up and rotate 90 deg. -Set down,latched in. -Pick up to verify latch then set down to latch. -Drop ball & pump down to release running tool,set packer. -Ball on seat X588 stks, 3300 psi to set packer,3700 psi to release running tool. -Test Packer to 1500 psi.good test. -Pick up to 4571',circulate 176 GPM ~ 500 psi. -Monitor well,static, - Mud wt in and out 9.2 ppg. 16:30 - 17:00 0.50 TIEBAC P OTHCMP Service topdrive,crown, and drawworks. 17:00 - 19:00 2.00 TIEBAC P OTHCMP POH from 4571' to running tool. 19:00 - 20:30 1.50 TIEBAC P OTHCMP Service break and lay down running tool. 20:30 - 23:00 2.50 STWHIP P WEXIT Make u Whi stock BHA. 23:00 - 00:00 1.00 STWHIP P WEXIT Run in hole from 244'to 516'. 6/30/2008 00:00 - 01:00 1.00 STWHIP P WEXIT Run in hole with whipstock from 518' to 1696'. 01:00 - 01:30 0.50 STWHIP P WEXIT Shallow pulse test MWD,281 GPM ~ 1705 psi. 01:30 - 02:30 1.00 STWHIP P WEXIT Run in hole with whipstock from 1696' to 4708'. -Up wt 124k down wt 90k 02:30 - 03:00 0.50 STWHIP P WEXIT Orient whipstock to 11 left of highside. -Tag up at 4783' and set anchor. -Shear off with 40k down . -TOW 4640' -BOW 4652' Printed: 7/23/2008 2:28:44 PM .~ gp Page 26 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task ~ Code NPT Phase ~', Description of Operations 6/30/2008 03:00 - 04:00 1.00 STWHIP P WEXIT Displace system to LS MOBM. -284 GPM ~ 1640 psi. -Record slow pump rates. 04:00 - 09:00 5.00 STWHIP P WEXIT Mill window from 4640' to 4674'. 09:00 - 10:30 1.50 STWHIP P WEXIT -Work mills through window. ;''' 09:00 - 11:30 2.50 STWHIP P WEXIT ~ ~~ ~ Circualte Hi-Vis sweep. `J ~ -280 GPM ~ 1455 psi. -Monitor well,static. -Mix & pump dry job. -Mud weight in and out 9.2ppg. -Record slow pump rates. 11:30 - 13:30 2.00 STWHIP P WEXIT POH from 4674'to 99'. 13:30 - 14:00 0.50 STWHIP P WEXIT Lay down milling assembly,mills in gauge. 14:00 - 15:30 1.50 DRILL P PROD6 Clear floor of tools. 15:30 - 17:00 1.50 DRILL P PROD6 PJSM, make up BHA #37 with motor, MWD, flex collars and jar to 287'. 17:00 - 17:30 0.50 DRILL P PROD6 Run in hole from 287' to 1243'. 17:30 - 18:00 0.50 DRILL P PROD6 Shallow pulse test MWD,296 GPM l~ 1400 psi. 18:00 - 18:30 0.50 DRILL P PROD6 Service Topdrive,drawworks,and crown. 18:30 - 20:00 1.50 DRILL P PROD6 Run in hole from 1243' to 4588'. 20:00 - 23:00 3.00 DRILL P PROD6 Drill sliding from 4674' to 4776'. -Up wt 113k,down wt. 89k -286 GPM (~ 1900 psi.off bottom,2020 psi on bottom. -5k WOB 23:00 - 00:00 1.00 DRILL N SFAL PROD6 Pull into window to trouble shoot MWD 7/1/2008 00:00 - 00:30 0.50 DRILL N SFAL PROD6 Attempted to continue drilling,washed out pop off valve. -Pull back into window 00:30 - 01:30 1.00 DRILL N SFAL PROD6 Service rig change pop-off on #2 pump. 01:30 - 02:30 1.00 DRILL N SFAL PROD6 MADD PASS log drilled section due to MWD surface problems while drilling. 02:30 - 12:00 9.50 DRILL P PROD6 Drill from 4776' to 5378'. -300 GPM, 2159 psi off bottom, 2294 psi on bottom. -5-10k WOB ~ 40 RPM with 3-4k TO off, 3-4k TQ on. -117k Up Wt, 79k Dn Wt, 103k Rot. -Mud wt. in and out 9.3 ppg. -Survey every 30'. -Back ream 30' on connections. 12:00 - 00:00 12.00 DRILL P PROD6 Continue drilling from 5378' to 6616'. -300 gpm with 2295 psi off, 2480 psi on. -5-10k WOB ~ 60 RPM with 3-4k TO off, 5-6k TO on. -120k Up Wt, 76k Dn Wt, 96k Rot. -Mud Wt in and out = 9.2 ppg. -Survey every 30'. -Backream 30' on connections. 7/2/2008 00:00 - 12:00 12.00 DRILL P PROD6 Continue drilling Nb Lateral from 6616' to 7910'. -300 gpm ~ 2501 psi off, 2654 psi on -5-10k WOB with 60 RPM ~ 4.4k TQ off, 5.8k TO on -139k Up Wt, 54k Dn Wt, 89k Rot -Survey every 30' -Backream 30' on connections. -MW in and out = 9.2 ppg 12:00 - 17:30 5.50 DRILL P PROD6 Continue drilling from 7910' to TD ~ 8630' -300 gpm ~ 2530 psi off, 2570 psi on Printed: 7/23/2008 2:28:44 PM ~.° gp Page 27 of 30 Operations Summary Report ~, Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: ~ ; Date From - To Hours Task Code NPT Phase ' Description of Operations 7/2/2008 12:00 - 17:30 5.50 DRILL P PROD6 -5-10k WOB with 60 RPM ~ 4k TO off, 5.6k TO on -141 k Up Wt, 61 k Dn Wt, 94k Rot -Survey every 30' -Backream 30' on connections -MW in and out = 9.3 ppg. 17:30 - 18:00 0.50 DRILL P PROD6 Circulate 1 open hole annular volume ~ 300 gpm, 2515 psi. 18:00 - 00:00 6.00 DRILL P PROD6 MAD Pass from 8630' to 7058' ~ 600 fph. -Slow to 300 fph for Density Caliper Data in intervals as per Geologist -300 gpm ~ 2515 psi -60 RPM ~ 4k TO -95k Rot Wt 7/3/2008 00:00 - 09:30 9.50 DRILL P PROD6 Continue MAD Passing from 7058' to 5053' ~ 600 fph. -Ran into tight spot ~ 6790' to 6716', 5180' and 4994'. Worked through several times and broke free. -Slow to 300 fph for Density Caliper Data in intervals as per Geologist -300 gpm ~ 2300 psi -60 RPM ~ 4k TO -90k Rot Wt 09:30 - 10:30 1.00 DRILL P PROD6 Pump out of hole from 5053' to 4745' due to sudden pressure loss down hole. Suspect washout in drillpipe. -200 gpm ~ 826 psi -60 rpm ~ 3.3k TO -120k Up Wt, 90k Dn Wt, 102k Rot ~ 10:30 - 11:30 1.00 DRILL P PROD6 POH with no pump or rotation from 4745' to 4397'. -115k Up Wt, 90k Dn Wt 11:30 - 12:30 1.00 DRILL P PROD6 Service top drive and blocks. 12:30 - 15:30 3.00 DRILL N DFAL PROD6 POH from 4397' to 194'. -Monitor well -static -Found circ sub washed out and open 15:30 - 16:30 1.00 DRILL N DFAL PROD6 Lay down BHA #37. 16:30 - 17:30 1.00 DRILL N DFAL PROD6 Clean and clear rig floor. 17:30 - 18:00 0.50 DRILL N DFAL PROD6 Pick up Cleanout BHA, #38 to 187'. 18:00 - 19:30 1.50 DRILL N DFAL PROD6 RIH on 4" DP from 187' to 4625'. 19:30 - 21:00 1.50 DRILL P PROD6 Attempt to circulate ~ 4625' and found drillstring packed off. Work string to unplug jets. Successfully able to establish cirulation. -CBU 3X ~ 404 gpm, 2245 psi. -95 rpm ~ 3.3k TQ -118k Up Wt, 92k Dn Wt, 97k Rot 21:00 - 22:00 1.00 DRILL P PROD6 Slip and cut 65' of drilling line. 22:00 - 00:00 2.00 DRILL P PROD6 RIH from 4625' to 7334'. -120k Up Wt, 80k Dn Wt -No problems ~ 7-5/8" window (4640') -Took Weight ~ 4775', then broke free. 7/4/2008 00:00 - 00:30 0.50 DRILL P PROD6 Continue to RIH from 7334' to 8570'. 00:30 - 01:00 0.50 DRILL P PROD6 Screw in Top Drive and wash down to 8630'. -No fill on bottom -CBU ~ 426 gpm, 3362 psi -60 rpm ~ 4.3k TO 01:00 - 02:00 1.00 DRILL P PROD6 Displace wellbore to 9.3 ppg SFMOBM -400 gpm ~ 3340 psi __ -- Printed: 7/23/2008 2:28:44 PM I .' BP Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING I Rig Name: NABOBS 9ES Date From - To !Hours Task Code NPT 7/4/2008 101:00 - 02:00 I 1.001 DRILL I P 02:00 - 07:00 5.00 DRILL P 07:00 - 07:30 0.50 DRILL P 07:30 - 09:30 2.00 WHIP P 09:30 - 10:00 0.50 WHIP P 10:00 - 10:30 0.50 WHIP P 10:30 - 12:00 1.50 WHIP P 12:00 - 12:30 0.50 WHIP P 12:30 - 13:00 I 0.501 WHIP I P 13:00 - 15:30 2.50 WHIP P 15:30 - 16:00 0.50 WHIP P 16:00 - 17:30 1.50 WHIP P 17:30 - 18:30 1.00 WHIP P 18:30 - 19:00 0.50 CASE P 19:00 - 00:00 5.00 CASE P 7/5/2008 100:00 - 02:30 I 2.50 I CASE I P 02:30 - 04:00 1.501 CASE P 04:00 - 06:30 I 2.501 CASE I P 06:30 - 07:00 0.50 CASE P 07:00 - 07:30 0.50 CASE P 07:30 - 11:00 3.50 CASE P 11:00 - 11:30 0.50 CASE P 11:30 - 13:30 2.00 CASE P 13:30 - 15:00 1.50 CASE P 15:00 - 17:00 ( 2.001 CASE I P 17:00 - 18:00 1.00 TIEBAC P 18:00 - 19:30 1.50 TIEBAC P 19:30 - 20:00 0.50 TIEBAC P 20:00 - 22:30 2.50 TIEBAC P Start: 5/21 /2008 Rig Release: 7/8/2008 Rig Number: Page 28 of 30 ~ Spud Date: 4/27/2008 End: 7/8/2008 Phase Description of Operations PROD6 -60 rpm ~ 4.2k TO -Monitor Well -Static PROD6 Pump Dry Job and POH from 8630' to 187'. PROD6 Lay down Cleanout BHA #38 RUNPRD Pickup Whipstock Retrieval BHA and Drill Collars to 388'. RUNPRD RIH from 388'to 1343'. RUNPRD Test MWD ~ 259 gpm, 847 psi -good. RUNPRD RIH from 1343' to 4593'. RUNPRD Orient Whipstock Retrieval Tool 11 degrees left of highside -257 gpm ~ 1309 psi -Wash down to 4645' and hook into whipstock. -Stage up to 80k overpull and pull whipstock free. RUNPRD CBU ~ 335 gpm, 2013 psi -Monitor well -static RUNPRD Pump dry job and POH from 4645' to 388' RUNPRD Stand back DC's and lay down Whipstock Retrieval BHA. RUNPRD Lay down whipstock and whipstock space out assembly. RUNPRD Clean and clear rig floor. RUNPRD Ri u to run 4.5" Nb Slott RUNPRD PJSM. Run 4.5" 12.6# L-80 IBT Slotted/Solid Nb Lateral Liner as per running detail. -Use BOL 2000 Pipe Dope -Ave TO = 3000 ft-Ibs -75k Up Wt, 64k Dn Wt RUNPRD Continue running in hole with 4.5" 12.6# L-80 IBT Slotted/Solid Nb Lateral Liner to 4640'. RUNPRD Attempt to exit window with lateral ~ 4640'. -Tagged bottom of OA Liner Top Tieback ~ 4800'. -Successfully able to exit window on 4th orientation. -108k Up Wt, 84k Dn Wt RUNPRD Continue to RIH with 4.5" liner on DP to 8618'. -132k Up Wt, 69k Dn Wt RUNPRD Drop 29/32" ball and pump on seat. -Release HR setting tool -shear seat ~ 4050 psi. RUNPRD CBU iX ~ 250 gpm, 880 psi. -Monitor Well -Static RUNPRD Pump dry job and POH from 4560' to 35'. -Lay down hook hanger running tool assembly. RUNPRD Clean and clear rig floor. RUNPRD Pick up 3.5" Mule Shoe and XO. RIH on DP to 4636' RUNPRD Stab into Liner Top Packer Tieback (on LEM #2) and -CBU ~ 405 gpm, 1747 psi. -Monitor Well -Static RUNPRD Pump Dry Job and POH from 4795'. -Lay down 3.5" Mule Shoe OTHCMP Ri u to run 4.5" LEM #3 Assembl . OTHCMP Make up LEM #3 Assembly as per running detail. -Use Jet Lube Seal Guard on Vam Top connections -Ave TO = 4440 ft-Ibs. OTHCMP Rig down casing equipment. Clean and clear floor. OTHCMP RIH with LEM #3 Assembly on DP to 4636'. Printed: 7/23/2008 2:28:44 PM s~ gP Page 29 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: i Date From - To Hours ~ Task Code ! NPT Phase Description of Operations 7/5/2008 22:30 - 00:00 1.50 TIEBAC P OTHCMP RIH throu h hook han er and -Set down 30k and latch LEM into Hook Hanger. -Pickup 10k overpull to confirm latched in -good. -Drop 1.75" ball and pump onto seat. -Pressure up to 2000 psi to set Liner Top Packer. -Continue pressure up to 3500 psi to neutralize pusher tool. -Continue pressure up to 4000 psi to release running tool. 7/6/2008 00:00 - 00:30 0.50 TIEBAC P OTHCMP - good. -Pull running tool above LTP and tag to confirm - ok. 00:30 - 03:30 3.00 TIEBAC P OTHCMP Displace wellbore from SFMOBM to 9.3 ppg Brine -250 gpm ~ 780 psi -Clean out under shakers and flush hole fill line -Blow down top drive and monitor well -static 03:30 - 07:00 3.50 TIEBAC P OTHCMP Lay down Drill Pipe from 4765' to 1230'. 07:00 - 08:00 1.00 TIEBAC P OTHCMP RIH with 4" DP stood back in derrick from 1230' to 4080'. 08:00 - 09:30 1.50 TIEBAC P OTHCMP Lay down DP from 4080' to 3020' 09:30 - 10:00 0.50 TIEBAC P OTHCMP Service top drive and drawworks 10:00 - 12:00 2.00 TIEBAC P OTHCMP Lay down DP from 3020' to 1230' 12:00 - 12:30 0.50 TIEBAC P OTHCMP RIH with 4" DP stood back in derrick from 1230' to 3236' 12:30 - 15:00 2.50 TIEBAC P OTHCMP Lay down DP from 3236' to HWDP 15:00 - 16:00 1.00 TIEBAC OTHCMP Lay down 24 joints of HWDP and (9) 4-3/4" Drill Collars. 16:00 - 16:30 0.50 TIEBAC P OTHCMP Lay down Baker LTP Running Tool. 16:30 - 17:00 0.50 TIEBAC P OTHCMP Clean and clear rig floor. 17:00 - 17:30 0.50 BUNCO RUNCMP Pull wear ring and make dummy run with tubing hanger -good 17:30 - 19:00 1.50 BUNCO RUNCMP Ri u - -Change out bails and RU compensator -Bring I-Wire spool to floor and rig up 19:00 - 22:30 3.50 BUNCO RUNCMP PJSM. Run 4.5" 12.6# 13Cr-80 Vam Top Completion as per running detail. -Make up 4.5" Phoenix Gauge Carriers and splice in I-Wire. -Perform test on I-Wire splices -good 22:30 - 00:00 1.50 BUNCO RUNCMP Continue to run 4.5" Completion as per running detail. -Dope connections with Jet Lube Seal Gaurd -TO Turn to 4440 ft-Ibs 7/7/2008 00:00 - 09:30 9.50 BUNCO RUNCMP Continue to run 4.5" 12.6# 13Cr-80 Vam Top Completion w/I-wire as per running detail. -Ta base of ' -Use Jet Lube Seal Gaurd Dope -MU TO = 4440 ft-Ibs -Check I-wire integrity every 1000' -good. -PUW = 92k Ibs, SOW = 76k lbs. 09:30 - 12:00 2.50 BUNCO RUNCMP Space out completion and make up landing jt and hanger. -Terminate I-wire and test control line communication throught hanger to 5000 psi for 10 minutes -good. 12:00 - 12:30 0.50 BUNCO RUNCMP Land tubin han er with bottom of t i ' -RILDS and torque to 450 ft-Ibs -Ran 66 full I-wire clamps and 15 half I-wire clamps on tubing -Rig down casing equipment and clear floor. 12:30 - 13:00 0.50 BUNCO RUNCMP Rig up to reverse circulate and pump corrosion inhibitor. 13:00 - 15:00 2.00 BUNCO RUNCMP Reverse circulate 253 bbls clean 9.3 ppg brine, followed by 57 bbls corrosion inhibited brine, followed by 5 bbls clean brine ~ 3 bpm, 180 psi Printed: 7/23/2008 2:28:44 PM .. ~ s gp Page 30 of 30 Operations Summary Report Legal Well Name: L-205 Common Well Name: L-205 Spud Date: 4/27/2008 Event Name: DRILL+COMPLETE Start: 5/21/2008 End: 7/8/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/8/2008 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase ~ Description of Operations 7/7/2008 15:00 - 15:30 0.50 BUNCO RUNCMP Drop ball and rod. -Back out and lay down landing joint -Close blind rams 15:30 - 19:00 3.50 BUNCO RUNCMP -Attempt to hold for 30 minutes -surface equipmentleaking. -Change out leaking bleeder valves -Blind rams leaking - PU and make up landing joint -Test tubing to 4000 si for 30 minutes - ood. -Bleed off to 2500 psi, then test annulus to 3500 psi for 30 mins - ood. -Bleed off annulus, then tubing. -Pressure up backside and shear DCK Valve ~ 2180 psi. -Confirm circulation both ways through shear valve -good. 19:00 - 19:30 0.50 BUNCO RUNCMP Lay down landing joint and install TWC. -Test to 1000 psi from below -good. 19:30 - 23:00 3.50 BUNCO RUNCMP Clean out Oil Based Mud System. -Remove mats and rotary table cover -Clean OBM from around rotary table and clean all drains. 23:00 - 00:00 1.00 BOPSU P RUNCMP Drain stack, pull riser, and remove turnbuckles. -Remove and drain mouse hole. 7/8/2008 00:00 - 03:00 3.00 BOPSU P RUNCMP Nipple down BOP stack and set back on stump. -Remove blind rams from stack to send back for inspection/repairs. -Blow down Choke and Kill Line -Change out long bails and prep floor for rig move 03:00 - 07:00 4.00 WHSUR P RUNCMP Nipple up tree adapter flange. -Terminate I-wires, orient as per SLB, and check wire integrity. Test I-wire and adapter flange to 5,000 psi - OK. -Nipple up double master valves with stems toward driller side and test to 5000 psi for 5 min -good. 07:00 - 08:00 1.00 WHSUR P RUNCMP RU DSM lubricator and pull TWC. -Rig up to freeze protect 08:00 - 12:00 4.00 WHSUR P RUNCMP PJSM w/ Little Red. Rig up and pump 100 bbls of diesel down IA ~ 3 bpm, 1300 psi. -Allow diesel to U-tube. 12:00 - 13:00 1.00 WHSUR P RUNCMP Rig down U-tube equipment. -Install BPV with DSM and test to 1000 psi from below. -Install VR plugs in annulus valves. -Rig down DSM. 13:00 - 14:00 1.00 WHSUR P RUNCMP Remove double annulus valves, secure tree, and secure cellar. Release rig from operations on L-205 ~ 14:00 hrs on 7/8/08 Printed: 7/23/2008 2:28:44 PM == 4-1/16" FMC LHEA D = FMC GEN 5 JATOR = LEO iEV = 7s.1o' 1EV = 74.38' = 300' Angle = mMD= °(a~' m N D = 4400'. SS DRLG DRAFT L-205 (L1, L2, L3, L4, L5) 20" CONDUCTOR, 129#, X-56, ~= 19.124" 10-3/4" CSG, 45.5#, L-80 BTC, ID = 9.95" ~- 7 5/8" CSG, 29.7#, L-80 TCII XO TO BTGM PRESSURE GA UGE, ID = 3.864 INTAKE PRESS GAUGE, ID = 3.864" ~ 4480' Minimum ID = 3.813" ~ 2400' JEWELRY TYPE "X "Nipple 7-5/8" X 5-1/2" BKR ZXP LTP/TIEBK, ID = 5.75" 4604' 4-1/2" TBG, 12.6#, 13CR-80 VAMTOP, I 4609' .0152 bpf, ID = 3.958" BAKER HOOK HANGER ASSY 4636' w / L3 SEALING LEM, ID = 3.688" 7-5/8" RA T AG ~ 4726' ~ LEM #3 L01NER SEAL ASSY, ~ = 3.890" ~ BAKER HOOK HANGER ASSY w / L2 SEALNG LEM, ID = 3.688" 7-5/8" RA TAG ~-{ 4942' ~ LEM #2 LOWER SEAL ASSY, ID = 3.890" ~ (BAKER HOOK HALER ASSY I w / L3 SEALING LEM, ID = 3.688" 7-5/8" RA T AG LEM #1 LOWER SEAL ASSY, ~ = 3.88" I a4oo' I ~4-1/2" HES X NIP, ~ = 3.813" ~ ST MD ND DEV TYPE VLV LATCH PORT DATE 4 2761 2518 33 KBG-2 DMY SBK-2C 0 07/06/08 ~ 3 3915 3504 30 KBG-2 DMY SBK-2C 0 07/06/08 7/ / 2 4126 3686 33 KBG-2 DCK BIX 0 0 06 08 1 4339 3859 38 KBG-2 DMY SBK-2C 0 07/06/08 4456' 4-1/2" Baker CMD SLD SLEEVE, ~ = 3.813" - 4542' 7-5/8" X 4-1/2" BKR PRM PKR, ID = 3.875" ~' 456$' 4-1/2" HES X NIP, w /RHGM Plug ~ = 3.813" 45$9' 4-1/2" HES X NIP, ID= 3.813" 4612' 4-1/2" WLEG, ID= 3.958" 4624' 5-112" X 4-1/2" XO, ID = 3.958" ® _ L5 (Nb) LEM WIDOW 47° ~- I 4640' - 4651' L 5 N b ( ) 4-1/2" RA TAG (c~ _6522_ _~~ _ _ _ ~®' - - - OPENING WIDTH = 3.64" 4781' 7-5/8" X 5-1/2" BKR ZXP LTPITIEBK, ID = 4.950" 4$00' 19-1/2' SEAL BORE IXTENSION, ID = 4.75" y 4819' ~--i 5-112" X 4-112" X0. ID = 3.958" i ® ® ~ _ _ _ L4 (OA) LEM WINDOW 56° L4 (OA) 4-1/2" RA TAG @ _6897_ ~ 4841' - 4852' ~~- - - - ~-®' - - - OPENNG WIDTH = 3.fi4" 4945' 7-5/8" X 5-1 /2" BKR ZXP LTP/TIEBK, ID = 5.75" 4963' 19-112' SEAL BORE IXTENSION, ID = 4.75" 4982' 5-1/2" X4-1/2" XO. ID= 3.958" L3 OBa e~ -rte L3(OBa) LEMWIND01/V62° ( ) 4-1/2" RA TAG rQ _7356_ 1 5003' - 5014' ~~ - - - ~® OPENNG WIDTH = 3.64" 5101' 7-5/8" X 5-1/2" BKR ZXP LTP/TIEBK, ID = 5.750" 119' SEAL BORE IXTENSION, ~ = 4.75" I 5151' 5-1/2" X 4-1/2" XO. ID= 3.958" 7 5/8" CSG, 29.7#, L-80 BTGM, ID = 6.875" 5582' I I I I I I L-205 (OBb) - I 1 PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: N/A Note: Refer to Production DB for historical pert data SIZE SPF WTERVAL Opn/Sqz DATE SEE PAGE 2 FOR PERFORATION INFORMATION II 5813' 6" WFD FLOW THRU ALUMINUM BILLET LNR * (BEHIND SLOTTED LINE ~ ~ ~ ~ L1 (OBc) -----~ i 5751' 6" WFD FLOW THRU ALUMINUM BLLET LNR (BEHIND SLOTTED LINER) L2 4-1/2" SOLID LNR, 12.6#, L-80, 8957' (O~) .0152 bpf, ID = 3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS ORION UNR 07/08/08 NBES OWGINAL COMPLETION WELL: L-205 PERMIT No: 2080530 (540) (580) (550) (560) (570) API No: 50-029-23388-00 (60) (64) (61) (62) (63) SEC 34, T12N, R11 E, 2361' FSL 8 1493' FLW BP Exploration (Alaska) L-205 (L1, L2, L3, L4, L5) Nb PBro 8618' ----r ~----- `~ 4-1/2" SWELL PKR @4704' ,5449 ',6540 ' & 7035', ID = 3.9" PERFORATION SUMMARY REF LOG: ANGLEATTOPPERF: NIA Note: Refer to Production DB for historical perf data SIZE SPF ZONE INTERVAL Opn/Sqz DATE SLTD Nb 8574-7060 6522-5480 Open 07/07/08 SLro OA 8708-7444 6897-5320 Open 07/07/08 sLro oea e797as18 7356-5477 Open 07/07/08 SLTD OBb 8909-6382 Open 07/07/08 SLro OBc 8948-6412 Open 07/07/08 SLTD OBd 8885-8020 7500-5912 5827-5594 Open 7/7/2008 4-1/2" RA TAG 5$46' I 4-1/2" SW~L PACKER, ID = 3.900" 5864' \ as 6a----T ~---- 4-1/2" SWELL PKR (i~ 4925' ,5279 ',6915' & 7419', ID = 3.9" 4-1/2" SWELL PKR @ 5045' , 5419 ', 7373 ' & 7892', D = 3.9' I 4-1/2" SWELL PKR ~ 5842', ID = 3.9" I I ----- OBb PBTD Oec PBTD 4-112" SWELL PKR (ci3 6115', ID = 3.9" ~ ----- _~- DATE REV BY COMMENTS DATE REV BY COMMENTS ORION UNR 07/08/08 NBES ORIGINAL COMPLETION WELL: L-205 PERMT No: 2080530 (540) (580) (550) (560) (570) API No: 50-029-23388-00 (60) (64) (61) (62) (63) SEC 34, T12N, R11E, 2361' FSL & 1493' FLW BP Exploration (Alaska) S SCHLUMBERGER Survey report Client ...................: BP Exploration (Alaska) Inc. Field ..................... Orion Well ...................... L-205 API number ...............: 50-029-23388-00 Engineer .................: T.Kallestad RIG :...................... Nabors 9E5 STATE :.................... Alaska ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS...........: Mason & Taylor ----- Depth reference ----------------------- Permanent datum..........: Mean Sea Level Depth reference..........: Driller's Pipe Tally GL above permanent.......: 47.60 ft KB above permanent.......: N/A Top Drive DF above permanent.......: 76.10 ft ----- Vertical section origin---------------- Latitude (+N/S-).......... 0.00 ft Departure (+E/W-)......... 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).........: 0.00 ft Departure (+E/W-)........: 0.00 ft Azimuth from Vsect Origin to target: 168.00 degrees [(c)2008 IDEAL ID13_OC_08] 5-Jun-2008 14:48:42 Page 1 of 7 Spud date ................: 27-Apr-08 Last survey date.........: 04-Jun-08 Total accepted surveys...: 174 MD of first survey.......: 0.00 ft MD of last survey........: 8953.00 ft ----- Geomagnetic data ---------------------- Magnetic model...........: BGGM version 2007 Magnetic date ............: 21-May-2008 Magnetic field strength..: 57649.94 GAMA Magnetic dec (+E/W-).....: 22.94 degrees Magnetic dip .............. 80.88 degrees ----- MWD survey Reference Reference G ............... Reference H ............... Reference Dip ............: Tolerance of G............ Tolerance of H...........: Tolerance of Dip.........: Criteria --------- 1002.68 meal 57650.00 LAMA 80.88 degrees (+/-) 2.50 meal (+/-)300.00 LAMA (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 22.94 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-)....: 22.94 degrees (Total az corr = magnetic dec - grid cony) Survey Correction Type .... I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction ~ ~ g- nS J SCHLUMBERGER Survey Report 5-Jun-2008 14:48:42 Page 2 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool - (ft) (deg) (deg) (ft) (ft) (f t) (ft) (ft) (ft) (deg) 100f) type 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TIP 2 100.00 0.57 217.96 100.00 100.00 0.32 -0.39 -0.31 0.50 217.96 0.57 BP _GYD SS 3 181.00 0.86 102.64 81.00 180.99 0.83 -0.84 0.04 0.84 177.33 1.50 BP _GYD SS 4 275.00 1.76 66.92 94.00 274.97 0.85 -0.43 2.06 2.10 101.85 1.25 BP _GYD SS 5 366.00 0.89 343.53 91.00 365.95 -0.12 0.79 3.14 3.24 75.81 2.06 BP _GYD SS 6 459.00 1.97 257.97 93.00 458.93 -0.84 1.15 1.37 1.79 49.95 2.26 BP _GYD S5 7 551.00 3.36 217.40 92.00 550.83 0.91 -1.32 -1.81 2.24 233.97 2.46 BP _GYD SS 8 644.00 5.70 201.25 93.00 643.54 6.55 -7.79 -5.14 9.33 213.43 2.84 BP _GYD SS 9 736.00 7.65 210.60 92.00 734.92 14.88 -17.32 -9.92 19.96 209.79 2.42 BP _GYD SS 10 835.00 8.60 223.39 99.00 832.93 23.93 -28.37 -18.36 33.79 212.90 2.06 BP _GYD SS 11 935.00 9.75 241.75 100.00 931.67 30.55 12 1035.00 13.48 249.51 100.00 1029.61 34.64 13 1115.00 16.16 253.08 80.00 1106.94 36.98 14 1136.89 16.70 254.64 21.89 1127.94 37.42 15 1258.24 22.93 265.48 121.35 1242.09 35.36 16 1326.92 24.06 268.62 68.68 1305.07 31.04 17 1421.68 27.17 270.67 94.76 1390.51 22.73 18 1516.50 30.08 271.97 94.82 1473.73 12.25 19 1611.33 32.06 273.04 94.83 1554.96 -0.02 20 1707.20 31.09 272.76 95.87 1636.63 -12.93 21 1801.84 32.49 272.47 94.64 1717.07 -25.51 22 1896.82 32.42 273.61 94.98 1797.22 -38.74 23 1992.43 33.98 273.42 95.61 1877.22 -52.74 24 2087.04 33.75 273.91 94.61 1955.78 -66.97 25 2181.62 33.61 271.96 94.58 2034.49 -80.49 26 2274.74 33.39 272.09 93.12 2112.14 -92.94 27 2367.93 33.39 272.47 93.19 2189.95 -105.59 28 2462.46 33.02 270.42 94.53 2269.04 -117.63 29 2557.63 33.63 270.02 95.17 2348.56 -128.70 30 2651.46 33.98 270.29 93.83 2426.53 -139.69 -37.81 -30.95 -45.91 -49.34 -52.41 -68.73 -54.13 -74.67 -60.62 -115.11 -62.01 -142.44 -62.22 -183.40 -61.15 -228.80 -59.00 -277.69 -56.46 -327.83 -54.19 -377.63 -51.49 -428.53 -48.28 -480.78 -44.91 -533.39 -42.22 -585.77 -40.41 -637.13 -38.37 -688.37 -37.06 -740.12 -36.86 -792.40 -36.71 -844.61 48.87 219.30 67.39 227.06 86.43 232.67 92.23 234.06 130.09 242.23 155.35 246.47 193.67 251.26 236.83 255.04 283.89 258.00 332.65 260.23 381.50 261.83 431.61 263.15 483.20 264.27 535.28 265.19 587.29 265.88 638.41 266.37 689.44 266.81 741.05 267.13 793.26 267.34 845.40 267.51 3.13 BP_GYD SS 4.04 BP_GYD SS 3.54 BP_MWD+IFR+MS 3.19 BP_MWD+IFR+MS 5.94 BP_MWD+IFR+MS 2.45 BP_MWD+IFR+MS 3.41 BP_MWD+IFR+MS 3.14 BP_MWD+IFR+MS 2.17 BP_MWD+IFR+MS 1.02 BP_MWD+IFR+MS 1.49 BP_MWD+IFR+MS 0.65 BP_MWD+IFR+MS 1.64 BP_MWD+IFR+MS 0.38 BP_MWD+IFR+MS 1.15 BP_MWD+IFR+MS 0.25 BP_MWD+IFR+MS 0.22 BP_MWD+IFR+MS 1.25 BP_MWD+IFR+MS 0.68 BP_MWD+IFR+MS 0.41 BP_MWD+IFR+MS • • [(c)2008 IDEAL ID13_OC_08] SCHLUMBERGER Survey Report 5-Jun-2008 14:48:42 Page 3 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type 31 2746.02 33.40 270.56 94.56 2505.21 -150.98 -36.33 -897.06 897.79 267.68 0.63 BP _MWD+IFR+MS 32 2842.54 33.47 270.62 96.52 2585.76 -162.57 -35.78 -950.24 950.91 267.84 0.08 BP _MWD+IFR+MS 33 2937.92 33.60 270.76 95.38 2665.26 -174.14 -35.14 -1002.92 1003.54 267.99 0.16 BP _MWD+IFR+MS 34 2967.43 33.62 270.56 29.51 2689.84 -177.72 -34.96 -1019.26 1019.86 268.04 0.38 BP _MWD+IFR+MS 35 3107.78 31.53 273.30 140.35 2808.11 -195.86 -32.46 -1094.76 1095.24 268.30 1.82 BP _MWD+IFR+MS 36 3203.61 31.04 273.04 95.83 2890.00 -208.88 -29.71 -1144.45 1144.83 268.51 0.53 BP _MWD+IFR+MS 37 3297.38 30.81 272.91 93.77 2970.44 -221.34 -27.21 -1192.57 1192.88 268.69 0.26 BP _MWD+IFR+MS 38 3392.05 30.68 272.74 94.67 3051.81 -233.72 -24.82 -1240.91 1241.16 268.85 0.17 BP _MWD+IFR+MS 39 3487.43 31.05 272.49 95.38 3133.68 -246.06 -22.59 -1289.79 1289.99 269.00 0.41 BP _MWD+IFR+MS 40 3582.92 30.87 268.82 95.49 3215.57 -256.83 -22.03 -1338.89 1339.07 269.06 1.99 BP _MWD+IFR+MS 41 3678.31 29.99 263.26 95.39 3297.84 -263.61 -25.33 -1387.04 1387.28 268.95 3.09 BP _MWD+IFR+MS 42 3772.61 29.22 254.87 94.30 3379.86 -264.51 -34.11 -1432.69 1433.09 268.64 4.47 BP _MWD+IFR+MS 43 3866.93 28.77 247.68 94.32 3462.39 -259.19 -48.74 -1475.92 1476.73 268.11 3.72 BP _MWD+IFR+MS 44 3962.10 29.80 240.93 95.17 3545.41 -248.14 -68.93 -1517.79 1519.36 267.40 3.63 BP _MWD+IFR+MS 45 4055.92 30.62 236.90 93.82 3626.50 -232.69 -93.31 -1558.19 1560.98 266.57 2.33 BP _MWD+IFR+MS 46 4150.19 33.73 229.21 94.27 3706.32 -211.43 -123.54 -1598.14 1602.91 265.58 5.45 BP _MWD+IFR+MS 47 4243.84 36.39 222.26 93.65 3783.00 -182.66 -161.11 -1636.53 1644.44 264.38 5.12 BP _MWD+IFR+MS 48 4339.08 38.26 217.52 95.24 3858.75 -147.01 -205.42 -1673.50 1686.06 263.00 3.60 BP _MWD+IFR+MS 49 4434.10 40.45 214.68 95.02 3932.22 -106.75 -254.11 -1708.97 1727.76 261.54 2.98 BP _MWD+IFR+MS 50 4527.38 43.34 211.09 93.28 4001.66 -62.60 -306.43 -1742.73 1769.46 260.03 4.02 BP _MWD+IFR+MS 51 4621.75 46.89 207.11 94.37 4068.26 -12.20 -364.85 -1775.16 1812.27 258.39 4.80 BP _MWD+IFR+MS 52 4716.23 50.92 201.83 94.48 4130.37 45.07 -429.65 -1804.54 1854.98 256.61 5.99 BP _MWD+IFR+MS 53 4812.65 54.90 197.34 96.42 4188.53 110.59 -502.09 -1830.23 1897.85 254.66 5.55 BP _MWD+IFR+MS 54 4908.32 58.39 192.41 95.67 4241.14 181.85 -579.29 -1850.66 1939.21 252.62 5.64 BP _MWD+IFR+MS 55 5003.84 61.96 190.35 95.52 4288.65 257.91 -660.51 -1866.98 1980.38 250.52 4.18 BP _MWD+IFR+MS 56 5098.67 64.50 185.97 94.83 4331.37 337.37 -744.29 -1878.96 2021.01 248.39 4.92 BP _MWD+IFR+MS 57 5191.99 68.17 183.53 93.32 4368.83 419.20 -829.45 -1886.01 2060.35 246.26 4.60 BP _MWD+IFR+MS 58 5225.86 70.74 183.18 33.87 4380.71 449.78 -861.11 -1887.87 2074.98 245.48 7.65 BP _MWD+IFR+MS 59 5257.11 70.58 183.12 31.25 4391.06 478.24 -890.55 -1889.49 2088.84 244.76 0.54 BP _MWD+IFR+MS 60 5287.53 72.38 181.94 30.42 4400.73 506.16 -919.37 -1890.76 2102.43 244.07 6.97 BP _MWD+IFR+MS • • [(c)2008 IDEAL ID13_OC_08] SCHLUMBERGER Survey Report 5-Jun-2008 14:48:42 Page 4 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type 61 5319.72 74.33 180.47 32.19 4409.95 536.19 -950.20 -1891.40 2116.67 243.33 7.47 BP _MWD+IFR+MS 62 5350.15 74.11 180.62 30.43 4418.22 564.77 -979.48 -1891.68 2130.22 242.63 0.86 BP _MWD+IFR+MS 63 5381.99 75.69 179.68 31.84 4426.52 594.82 -1010.22 -1891.76 2144.60 241.90 5.72 BP _MWD+IFR+MS 64 5413.57 75.92 178.94 31.58 4434.26 624.84 -1040.83 -1891.39 2158.87 241.18 2.39 BP _MWD+IFR+MS 65 5445.64 77.19 178.26 32.07 4441.72 655.50 -1072.01 -1890.63 2173.41 240.45 4.46 BP _MWD+IFR+MS 66 5477.05 78.12 177.79 31.41 4448.43 685.72 -1102.68 -1889.57 2187.78 239.73 3.30 BP _MWD+IFR+MS 67 5513.31 79.69 176.35 36.26 4455.41 720.85 -1138.21 -1887.75 2204.35 238.91 5.83 BP _MWD+IFR+MS 68 5593.21 82.51 174.10 79.90 4467.77 799.15 -1216.86 -1881.18 2240.44 237.10 4.49 BP _MWD+IFR+MS 69 5624.74 84.22 173.22 31.53 4471.41 830.32 -1247.99 -1877.72 2254.62 236.39 6.09 BP _MWD+IFR+MS 70 5655.76 87.07 170.71 31.02 4473.77 861.17 -1278.61 -1873.40 2268.14 235.69 12.23 BP _MWD+IFR+MS 71 5687.39 89.75 170.34 31.63 4474.65 892.75 -1309.79 -1868.19 2281.60 234.97 8.55 BP _MWD+IFR+MS 72 5719.98 92.77 167.17 32.59 4473.93 925.32 -1341.74 -1861.84 2294.93 234.22 13.43 BP _MWD+IFR+MS 73 5750.94 93.34 168.07 30.96 4472.28 956.24 -1371.94 -1855.21 2307.38 233.52 3.44 BP_ MWD+IFR+MS 74 5782.38 97.22 166.57 31.44 4469.39 987.53 -1402.47 -1848.34 2320.19 232.81 13.22 BP _MWD+IFR+MS 75 5814.15 99.54 166.88 31.77 4464.76 1018.96 -1433.06 -1841.12 2333.11 232.10 7.37 BP _MWD+IFR+MS 76 5846.07 99.63 167.80 31.92 4459.44 1050.43 -1463.77 -1834.23 2346.70 231.41 2.86 BP _MWD+IFR+MS 77 5878.23 102.93 168.56 32.16 4453.15 1081.96 -1494.64 -1827.77 2361.07 230.73 10.52 BP_ MWD+IFR+MS 78 5909.60 102.86 168.42 31.37 4446.15 1112.54 -1524.60 -1821.66 2375.47 230.07 0.49 BP _MWD+IFR+MS 79 5941.73 102.44 168.12 32.13 4439.12 1143.89 -1555.30 -1815.29 2390.45 229.41 1.59 BP_ MWD+IFR+MS 80 5973.55 102.26 168.29 31.82 4432.31 1174.97 -1585.72 -1808.94 2405.57 228.76 0.77 BP_ MWD+IFR+MS 81 6005.50 102.02 168.13 31.95 4425.59 1206.21 -1616.30 -1802.56 2421.08 228.12 0.90 BP_ MWD+IFR+MS 82 6037.36 101.70 169.58 31.86 4419.04 1237.38 -1646.89 -1796.53 2437.16 227.49 4.57 BP _MWD+IFR+MS 83 6068.34 101.38 169.43 30.98 4412.85 1267.73 -1676.74 -1791.00 2453.39 226.89 1.14 BP _MWD+IFR+MS 84 6100.22 101.51 167.91 31.88 4406.52 1298.97 -1707.37 -1784.86 2469.99 226.27 4.69 BP_ MWD+IFR+MS 85 6131.50 103.25 167.96 31.28 4399.81 1329.52 -1737.25 -1778.48 2486.16 225.67 5.56 BP_ MWD+IFR+MS 86 6163.54 103.03 167.35 32.04 4392.53 1360.72 -1767.73 -1771.80 2502.83 225.07 1.98 BP _MWD+IFR+MS 87 6195.45 102.79 167.31 31.91 4385.40 1391.82 -1798.08 -1764.98 2519.57 224.47 0.76 BP _MWD+IFR+MS 88 6227.68 102.44 165.98 32.23 4378.36 1423.26 -1828.68 -1757.72 2536.46 223.87 4.17 BP _MWD+IFR+MS 89 6259.20 102.30 165.42 31.52 4371.61 1454.03 -1858.51 -1750.11 2552.83 223.28 1.79 BP _MWD+IFR+MS 90 6290.39 102.19 165.32 31.19 4364.99 1484.48 -1888.00 -1742.41 2569.16 222.70 0.47 BP _MWD+IFR+MS C~ [(c)2008 IDEAL ID13_OC_08] SCHLUNIBERGER Survey Report 5-Jun-2008 14:48:42 Page 5 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type 91 6322.25 102.02 165.38 31.86 4358.31 1515.59 -1918.14 -1734.54 2586.09 222.12 0.56 BP _MWD+IFR+MS 92 6354.57 100.30 165.22 32.32 4352.06 1547.27 -1948.81 -1726.49 2603.58 221.54 5.34 BP _MWD+IFR+MS 93 6386.13 96.45 165.06 31.56 4347.46 1578.44 -1978.98 -1718.48 2620.99 220.97 12.21 BP _MWD+IFR+MS 94 6417.24 92.83 165.28 31.11 4344.95 1609.41 -2008.95 -1710.55 2638.54 220.41 11.66 BP _MWD+IFR+MS 95 6448.97 91.61 166.72 31.73 4343.72 1641.10 -2039.72 -1702.88 2657.11 219.86 5.95 BP _MWD+IFR+MS 96 6480.84 91.12 166.86 31.87 4342.96 1672.95 -2070.74 -1695.60 2676.38 219.31 1.60 BP _MWD+IFR+MS 97 6512.68 89.99 165.37 31.84 4342.65 1704.77 -2101.64 -1687.96 2695.57 218.77 5.87 BP _MWD+IFR+MS • 98 6544.47 88.21 165.62 31.79 4343.15 1736.52 -2132.41 -1680.00 2714.70 218.23 5.65 BP _MWD+IFR+MS 99 6576.25 87.59 165.29 31.78 4344.31 1768.25 -2163.15 -1672.02 2734.02 217.70 2.21 BP _MWD+IFR+MS 100 6607.40 87.18 165.66 31.15 4345.73 1799.34 -2193.28 -1664.22 2753.19 217.19 1.77 BP _MWD+IFR+MS 101 6639.79 87.73 166.22 32.39 4347.17 1831.68 -2224.67 -1656.36 2773.56 216.67 2.42 BP _MWD+IFR+MS 102 6670.22 87.22 166.31 30.43 4348.51 1862.06 -2254.20 -1649.14 2793.04 216.19 1.70 BP _MWD+IFR+MS 103 6701.89 89.44 165.92 31.67 4349.44 1893.70 -2284.93 -1641.54 2813.46 215.69 7.12 BP _MWD+IFR+MS 104 6733.55 89.75 166.78 31.66 4349.66 1925.34 -2315.69 -1634.07 2834.19 215.21 2.89 BP _MWD+IFR+MS 105 6765.17 89.68 168.24 31.62 4349.82 1956.96 -2346.56 -1627.23 2855.56 214.74 4.62 BP _MWD+IFR+MS 106 6796.81 89.41 167.62 31.64 4350.07 1988.60 -2377.50 -1620.62 2877.31 214.28 2.14 BP _MWD+IFR+MS 107 6828.41 89.92 169.19 31.60 4350.25 2020.20 -2408.45 -1614.26 2899.40 213.83 5.22 BP _MWD+IFR+MS 108 6860.32 89.55 168.90 31.91 4350.40 2052.10 -2439.78 -1608.20 2922.13 213.39 1.47 BP _MWD+IFR+MS 109 6892.16 89.03 169.04 31.84 4350.79 2083.94 -2471.03 -1602.11 2944.95 212.96 1.69 BP _MWD+IFR+MS 110 6923.47 89.27 169.41 31.31 4351.26 2115.24 -2501.79 -1596.26 2967.65 212.54 1.41 BP _MWD+IFR+MS 111 6954.25 89.26 169.01 30.78 4351.65 2146.01 -2532.02 -1590.49 2990.12 212.14 1.30 BP _MWD+IFR+MS • 112 6985.31 91.84 167.60 31.06 4351.36 2177.06 -2562.43 -1584.20 3012.60 211.73 9.47 BP _MWD+IFR+MS 113 7016.20 91.71 169.48 30.89 4350.40 2207.93 -2592.69 -1578.07 3035.18 211.33 6.10 BP _MWD+IFR+MS 114 7048.12 90.93 166.92 31.92 4349.66 2239.84 -2623.92 -1571.54 3058.55 210.92 8.38 BP _MWD+IFR+MS 115 7079.84 92.70 168.60 31.72 4348.66 2271.54 -2654.90 -1564.82 3081.75 210.52 7.69 BP _MWD+IFR+MS 116 7111.75 93.73 168.88 31.91 4346.87 2303.40 -2686.15 -1558.60 3105.58 210.12 3.34 BP _MWD+IFR+MS 117 7142.82 92.74 169.09 31.07 4345.12 2334.41 -2716.60 -1552.67 3129.01 209.75 3.26 BP _MWD+IFR+MS 118 7173.72 91.16 170.94 30.90 4344.06 2365.28 -2747.01 -1547.32 3152.82 209.39 7.87 BP _MWD+IFR+MS 119 7205.63 89.26 170.21 31.91 4343.95 2397.15 -2778.49 -1542.09 3177.74 209.03 6.38 BP _MWD+IFR+MS 120 7237.17 89.10 170.31 31.54 4344.40 2428.66 -2809.57 -1536.76 3202.39 208.68 0.60 BP _MWD+IFR+MS [(c)2008 IDEAL ID13_OC_08] SCHLUMBERGER Survey Report 5-Jun-2008 14:48:42 Page 6 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type 121 7267.77 89.20 170.27 30.60 4344.85 2459.24 -2839.73 -1531.60 3226.43 208.34 0.35 BP _MWD+IFR+MS 122 7299.59 88.96 169.16 31.82 4345.36 2491.04 -2871.03 -1525.92 3251.35 207.99 3.57 BP _MWD+IFR+MS 123 7331.27 89.31 169.14 31.68 4345.84 2522.71 -2902.14 -1519.95 3276.08 207.64 1.11 BP _MWD+IFR+MS 124 7363.10 89.96 169.82 31.83 4346.04 2554.53 -2933.44 -1514.14 3301.16 207.30 2.96 BP _MWD+IFR+MS 125 7394.74 90.58 169.73 31.64 4345.89 2586.15 -2964.57 -1508.53 3326.31 206.97 1.98 BP _MWD+IFR+MS 126 7426.27 90.54 169.91 31.53 4345.59 2617.66 -2995.61 -1502.95 3351.50 206.64 0.58 BP _MWD+IFR+MS 127 7458.30 89.28 168.74 32.03 4345.64 2649.68 -3027.08 -1497.02 3377.02 206.31 5.37 BP _MWD+IFR+MS 128 7490.15 90.44 167.77 31.85 4345.71 2681.53 -3058.26 -1490.54 3402.16 205.98 4.75 BP _MWD+IFR+MS 129 7520.65 91.47 167.08 30.50 4345.21 2712.03 -3088.03 -1483.90 3426.06 205.67 4.06 BP _MWD+IFR+MS 130 7552.43 91.23 165.39 31.78 4344.46 2743.78 -3118.88 -1476.34 3450.65 205.33 5.37 BP _MWD+IFR+MS 131 7584.23 90.87 166.08 31.80 4343.87 2775.55 -3149.70 -1468.50 3475.21 205.00 2.45 BP _MWD+IFR+MS 132 7615.89 87.43 165.97 31.66 4344.34 2807.18 -3180.41 -1460.86 3499.88 204.67 10.87 BP _MWD+IFR+MS 133 7647.32 86.25 166.59 31.43 4346.08 2838.55 -3210.90 -1453.42 3524.53 204.35 4.24 BP _MWD+IFR+MS 134 7679.38 84.77 167.06 32.06 4348.59 2870.50 -3242.02 -1446.13 3549.93 204.04 4.84 BP _MWD+IFR+MS 135 7711.53 86.44 169.44 32.15 4351.05 2902.56 -3273.40 -1439.61 3575.98 203.74 9.03 BP _MWD+IFR+MS 136 7743.19 89.93 168.84 31.66 4352.05 2934.19 -3304.47 -1433.64 3602.06 203.45 11.18 BP _MWD+IFR+MS 137 7774.90 90.47 170.01 31.71 4351.94 2965.89 -3335.64 -1427.83 3628.39 203.17 4.06 BP _MWD+IFR+MS 138 7806.68 91.16 170.96 31.78 4351.49 2997.64 -3366.98 -1422.57 3655.17 202.90 3.69 BP _MWD+IFR+MS 139 7840.02 90.58 172.29 33.34 4350.98 3030.90 -3399.96 -1417.72 3683.70 202.64 4.35 BP _MWD+IFR+MS 140 7871.07 90.06 171.47 31.05 4350.81 3061.88 -3430.70 -1413.33 3710.42 202.39 3.13 BP _MWD+IFR+MS 141 7901.71 89.62 171.28 30.64 4350.90 3092.47 -3460.99 -1408.74 3736.71 202.15 1.56 BP _MWD+IFR+MS 142 7934.79 89.13 171.92 33.08 4351.26 3125.48 -3493.72 -1403.90 3765.24 201.89 2.44 BP _MWD+IFR+MS 143 7965.64 88.89 170.08 30.85 4351.79 3156.28 -3524.18 -1399.08 3791.74 201.65 6.01 BP_MWD+IFR+MS 144 7997.37 89.00 168.45 31.73 4352.37 3188.00 -3555.35 -1393.17 3818.56 201.40 5.15 BP _MWD+IFR+MS 145 8026.44 88.41 169.62 29.07 4353.03 3217.06 -3583.88 -1387.64 3843.14 201.17 4.51 BP _MWD+IFR+MS 146 8058.69 88.52 167.48 32.25 4353.90 3249.29 -3615.47 -1381.24 3870.33 200.91 6.64 BP _MWD+IFR+MS 147 8091.17 88.24 167.18 32.48 4354.81 3281.75 -3647.15 -1374.12 3897.43 200.64 1.26 BP _MWD+IFR+MS 148 8123.10 87.45 167.99 31.93 4356.01 3313.66 -3678.31 -1367.26 3924.20 200.39 3.54 BP _MWD+IFR+MS 149 8155.36 86.97 168.31 32.26 4357.58 3345.88 -3709.85 -1360.65 3951.50 200.14 1.79 BP _MWD+IFR+MS 150 8186.89 87.18 168.21 31.53 4359.19 3377.37 -3740.68 -1354.24 3978.27 199.90 0.74 BP _MWD+IFR+MS • • [(c)2008 IDEAL ID13_OC_08] SCHLUMBERGER Survey Report 5-Jun-2008 14:48:42 Page 7 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type 151 8218.84 85.01 166.37 31.95 4361.37 3409.24 -3771.77 -1347.23 4005.15 199.66 8.90 BP _MWD+IFR+MS 152 8249.42 83.68 167.23 30.58 4364.38 3439.66 -3801.39 -1340.28 4030.75 199.42 5.17 BP _MWD+IFR+MS 153 8280.85 86.29 167.13 31.43 4367.13 3470.97 -3831.92 -1333.33 4057.26 199.19 8.31 BP _MWD+IFR+MS 154 8311.95 89.39 169.97 31.10 4368.30 3502.04 -3862.37 -1327.16 4084.03 198.96 13.51 BP _MWD+IFR+MS 155 8342.54 88.66 169.68 30.59 4368.82 3532.61 -3892.48 -1321.76 4110.77 198.76 2.57 BP MWD+IFR+MS 156 8376.21 89.62 167.94 33.67 4369.33 3566.27 -3925.50 -1315.23 4139.98 198.52 5.90 BP _MWD+IFR+MS 157 8407.41 89.68 168.47 31.20 4369.52 3597.47 -3956.04 -1308.85 4166.94 198.31 1.71 BP _MWD+IFR+MS • 158 8439.19 88.62 168.05 31.78 4369.99 3629.24 -3987.15 -1302.38 4194.47 198.09 3.59 BP _MWD+IFR+MS 159 8471.36 90.03 166.91 32.17 4370.37 3661.41 -4018.56 -1295.41 4222.19 197.87 5.64 BP _MWD+IFR+MS 160 8502.27 91.33 167.01 30.91 4370.00 3692.31 -4048.67 -1288.44 4248.74 197.65 4.22 BP _MWD+IFR+MS 161 8534.49 92.19 165.24 32.22 4369.01 3724.50 -4079.93 -1280.72 4276.22 197.43 6.11 BP _MWD+IFR+MS 162 8566.24 93.60 164.06 31.75 4367.41 3756.15 -4110.51 -1272.32 4302.91 197.20 5.79 BP _MWD+IFR+MS 163 8596.80 93.18 162.20 30.56 4365.60 3786.55 -4139.70 -1263.47 4328.22 196.97 6.23 BP _MWD+IFR+MS 164 8627.52 92.50 162.17 30.72 4364.08 3817.07 -4168.91 -1254.08 4353.45 196.74 2.22 BP _MWD+IFR+MS 165 8658.46 91.81 162.39 30.94 4362.92 3847.83 -4198.36 -1244.67 4378.98 196.51 2.34 BP MWD+IFR+MS 166 8689.62 91.78 162.05 31.16 4361.94 3878.82 -4228.02 -1235.16 4404.74 196.29 1.09 BP _MWD+IFR+MS 167 8720.57 90.95 161.03 30.95 4361.20 3909.56 -4257.37 -1225.36 4430.20 196.06 4.25 BP _MWD+IFR+M5 168 8750.41 89.99 160.49 29.84 4360.96 3939.17 -4285.54 -1215.53 4454.59 195.84 3.69 BP _MWD+IFR+MS 169 8782.75 89.48 161.50 32.34 4361.11 3971.26 -4316.11 -1205.00 4481.17 195.60 3.50 BP _MWD+IFR+MS 170 8812.29 89.00 161.60 29.54 4361.50 4000.61 -4344.13 -1195.65 4505.67 195.39 1.66 BP MWD+IFR+MS 171 8842.79 89.58 162.26 30.50 4361.88 4030.94 -4373.13 -1186.19 4531.15 195.18 2.88 BP _MWD+IFR+MS • 172 8873.10 90.85 163.15 30.31 4361.76 4061.12 -4402.06 -1177.18 4556.75 194.97 5.12 BP _MWD+IFR+MS 173 8893.97 91.60 163.94 20.87 4361.32 4081.92 -4422.08 -1171.27 4574.56 194.84 5.22 BP _MWD+IFR+MS 174 8953.00 91.60 163.94 59.03 4359.67 4140.78 -4478.78 -1154.95 4625.30 194.46 0.00 Projected to TD [(c)2008 IDEAL ID13_OC_08] ~' Drilling & Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Dispatched To: Christine Mahnken (AOGCC) Well No L-205 Date Dispatched: 17-Jun-08 Installation/Rig Nabors-9ES Dispatched By: Franklin Medina LWD Log Delivery V2.1, 03-06-06 Data No Of Prints No of Floppies Surveys 2 1 Please sign and return to: James H. Jonnson Received By: BP Exploration (Alaska) Inc. Petrotechnical Data Center (LR2-1) 900 E. Benson Blvd. Anchorage, Alaska 99508 Fax:907-564-4005 e-mail address: johnsojh@bp.com • gyro ata Gyrodata Incorporated 1682 W. Sam Houston Pkwy. N. Houston, Texas 77043 713/461-3146 Fax: 713/461-0920 May 9, 2008 State of Alaska - AOGCC Attn: Christine Mahnken 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 Re: L-Pad, Well #L-205 Prudhoe Bay, Alaska Enclosed, please find two (2) copies, and one (1) disk of the completed survey for the above referenced well. We would like to take this opportunity to thank you for using Gyrodata, and we look forward to serving you in the future. Sincerely, ~~ ~~~~ Rob Shoup North American Regional Manager RS:tf Serving the Worldwide Energy Industry with Precision Survey 9ns' cm: ;13;461-3146 Fax: 713!461-Q920 SURVEY REPORT BP L-Pad #L-205 Prudhoe Bay, AK AK0408G_121 28 Apr 2008 t a~~~d~ 3 A Gyrodata Directional Survey for BP EXPLORATION (ALASKA) INC. Lease: L-Pad Well: L-205, • Location: Nabors #9ES, Prudhoe Bay, Alaska Job Number: AK0408G 121 Run Date: 28 Apr 2008 Surveyor: Steve Thompson Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.350091 deg. N Longitude: 149.325079 deg. W Azimuth Correction: • Gyro: Bearings are Relative to True North Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Well Head Location A Gyrodata Directional Survey BP Exploration (Alaska) Inc. Lease: L-Pad Well: L-205 Location: Nabors #9ES, Prudhoe Bay, Alaska Job Number: AK0408G 121 MEASURED I N C L AZIMUTH BORE HOLE DOGLEG VERTICAL DEPTH BEARING SEVERITY DEPTH feet deg. deg. deg. min. deg./ feet 100 ft. CLOSURE HORIZONTAL DIST. AZIMUTH COORDINATES feet deg. feet 0.00 0.00 0.00 N 0 0 E 0.00 0.00 0 - 1115 FT. RATE GYROSCOPIC MULTISHOT SURVEY ALL SURVEY DEPTHS REFERENCED FROM NABORS #9ES ROTARY TABLE AT 76.10 FT. AMSL ------------------------------------------------------------------------------------------------------------------------------------ 100.00 0.57 217.96 S 37 57 W 181.00 0.86 102.64 S 77 22 E 275.00 1.76 66.92 N 66 SS E 366.00 0.89 343.53 N 16 28 W 459.00 1.97 257.97 S 77 58 W 551.00 3.36 217.40 S 37 24 W 644.00 5.70 201.25 S 21 15 W .736.00 7.65 210.60 S 30 36 W 835.00 8.60 223.39 S 43 23 W 935.00 9.75 241.75 S 61 45 W 1035.00 13.48 249.51 S 69 30 W ..1115.00 16.16 253.08 S 73 5 W Final Station Closure: Distance: 86.42 ft Az: 232.67 deg. 0.0 0.0 0.00 N 0.00 E 0.57 100.00 0.5 218.0 0.39 S 0.31 W 1.51 180.99 0.8 177.1 0.84 S 0.04 E 1.25 274.97 2.1 101.9 0.43 S 2.06 E 2.06 365.95 3.2 75.9 0.79 N 3.14 E 2.26 458.93 1.8 50.2 1.15 N 1.38 E 2.46 550.83 2.2 233.8 1.33 S 1.81 W 2.84 643.54 9.3 213.4 7.79 S 5.14 W 2.42 734.92 20.0 209.8 17.32 S 9.91 W 2.06 832.93 33.8 212.9 28.37 S 18.34 W 3.13 931.67 48.9 219.3 37.81 S 30.94 W 4.04 1029.61 67.4 227.1 45.90 S 49.33 W 3.53 1106.95 86.4 232.7 52.41 S 68.71 W 2 BP Exploration (Alaska) Inc. Well: L-Pad L-205 Location: Nabors #9ES. Prudhoe Bav. Alaska 0 -5 -10 -15 -20 +~ .~ C~ -25 O z -30 -35 -40 -45 -50 -55 Outrun Gyrodata ' AK0408G_121 DEFINITIVE i OTTOM HOLE 3C-ATEED--- _-- ID: 1115.00 •iu -UU -5u -40 -30 -20 -10 0 FASTING (ft) BP Exploration (Alaska) Inc. Well: L-Pad L-205 Location: Nabors #9ES, Prudhoe Bay, Alaska 10 9 8 7 0 0 ~ 6 a~ ~-, . ~ 5 w w w 4 C~ O D 3 2 1 Outrun Gyrodata AK0408G_121 DEFINITIVE •i 100 200 300 400 500 600 700 800 900 1000 1100 1200 MEASURED DEPTH (ft) BP Exploration (Alaska) Inc. Well: L-Pad L-205 Location: Nabors #9ES, Prudhoe Bay, Alaska 60 59 58 57 w a~ ~ 56 w ~ 55 w H 54 53 52 Outrun Gyrodata ` AK0408G_121 DEFINITIVE lUU ZUU 3UU 400 500 600 700 800 900 1000 1100 1200 MEASURED DEPTH (ft) BP Exploration (Alaska) Inc. Well: L-Pad L-205 Location: Nabors #9ES, Prudhoe Bay, Alaska 16 - __- -.._ .. __t--_- -- _._.--- --~----- ---------- }- --------- -----~-___ __ 14 12 10 z O ~- Q z ~ 8 U z 6 BOTTOf~ HOLE LOCATEp MD: 1115.00 •I 4 z 0 Outrun Gyrodata - AK0408G_121 DEFINITIVE 100 200 300 400 500 600 700 800 MEASURED DEPTH (ft) 900 1000 1100 1200 r. SCHLUMBERGER Survey report Client ...................: BP Exploration (Alaska) Inc. Field ....................: Orion Well .....................: L-205PB1 API number ...............: 50-029-23388-70 Engineer .................: Minnick COUNTY :..................: North Slope Borough STATE :.................... Alaska ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS...........: Mason & Taylor ----- Depth reference ---- Permanent datum...........: Depth reference..........: GL above permanent.......: KB above permanent.......: DF above permanent.......: ------------------ Mean Sea Level Driller's Pipe Tally 47.60 ft N/A Top Drive 76.10 ft ----- Vertical section origin---------------- Latitude (+N/S-).........: 0.00 ft Departure (+E/W-)........: 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).........: -999.25 ft Departure (+E/W-)........: -999.25 ft Azimuth from Vsect Origin to target: 247.18 degrees DO O' [(c)2008 IDEAL ID13_OC_08] W 21-May-2008 08:38:37 Page 1 of 4 Spud date ................: 27-Apr-08 Last survey date.........: 19-May-08 Total accepted surveys...: 86 MD of first survey.......: 0.00 ft MD of last survey........: 5165.00 ft ----- Geomagnetic data ---------------------- Magnetic model...........: BGGM version 2007 Magnetic date ............: 27-Apr-2008 Magnetic field strength..: 57648.57 LAMA Magnetic dec (+E/W-).....: 22.97 degrees Magnetic dip .............: 80.88 degrees ----- MWD survey Reference Reference G ............... Reference H ............... Reference Dip ............. Tolerance of G...........: Tolerance of H............ Tolerance of Dip.........: Criteria --------- 1002.68 meal 57648.50 LAMA 80.88 degrees (+/-) 2.50 meal (+/-)300.00 GAMA (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 22.97 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-)....: 22.97 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type .... I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction i SCHLUMBERGER Survey Report 21 -May-2008 08:38:37 Page 2 of 4 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TIP None 2 100.00 0.57 217.96 100.00 100.00 0.43 -0.39 -0.31 0.50 217.96 0.57 BP_GYD SS 3 181.00 0.86 102.64 81.00 180.99 0.29 -0.84 0.04 0.84 177.33 1.50 BP_GYD SS 4 275.00 1.76 66.92 94.00 274.97 -1.73 -0.43 2.06 2.10 101.85 1.25 BP_GYD SS 5 366.00 0.89 343.53 91.00 365.95 -3.20 0.79 3.14 3.24 75.81 2.06 BP_GYD SS 6 459.00 1.97 257.97 93.00 458.93 -1.71 1.15 1.37 7 551.00 3.36 217.40 92.00 550.83 2.18 -1.32 -1.81 8 644.00 5.70 201.25 93.00 643.54 7.76 -7.79 -5.14 9 736.00 7.65 210.60 92.00 734.92 15.86 -17.32 -9.92 10 835.00 8.60 223.39 99.00 832.93 27.92 -28.37 -18.36 11 935.00 9.75 241.75 100.00 931.67 43.20 -37.81 -30.95 12 1035.00 13.48 249.51 100.00 1029.61 63.28 -45.91 -49.34 13 1115.00 16.16 253.08 80.00 1106.94 83.67 -52.41 -68.73 14 1136.89 16.70 254.64 21.89 1127.94 89.82 -54.13 -74.67 15 1258.24 22.93 265.48 121.35 1242.09 129.61 -60.62 -115.11 16 1326.92 24.06 268.62 68.68 1305.07 155.34 -62.01 -142.44 17 1421.68 27.17 270.67 94.76 1390.51 193.18 -62.22 -183.40 18 1516.50 30.08 271.97 94.82 1473.73 234.61 -61.15 -228.80 19 1611.33 32.06 273.04 94.83 1554.96 278.84 -59.00 -277.69 20 1707.20 31.09 272.76 95.87 1636.63 324.06 -56.46 -327.83 21 1801.84 32.49 272.47 94.64 1717.07 369.09 -54.19 -377.63 22 1896.82 32.42 273.61 94.98 1797.22 414.95 -51.49 -428.53 23 1992.43 33.98 273.42 95.61 1877.22 461.87 -48.28 -480.78 24 2087.04 33.75 273.91 94.61 1955.78 509.06 -44.91 -533.39 25 2181.62 33.61 271.96 94.58 2034.49 556.29 -42.22 -585.77 26 2274.74 33.39 272.09 93.12 2112.14 602.93 -40.41 -637.13 27 2367.93 33.39 272.47 93.19 2189.95. 649.37 -38.37 -688.37 28 2462.46 33.02 270.42 94.53 2269.04 696.56 -37.06 -740.12 29 2557.63 33..63 270.02 95.17 2348.56 744.67 -36.86 -792.40 30 2651.46 33.98 270.29 93.83 2426.53 792.74 -36.71 -844.61 1.79 49.95 2.24 233.97 9.33 213.43 19.96 209.79 33.79 212.90 48.87 219.30 67.39 227.06 86.43 232.67 92.23 234.06 130.09 242.23 155.35 246.47 193.67 251.26 236.83 255.04 283.89 258.00 332.65 260.23 381.50 261.83 431.61 263.15 483.20 264.27 535.28 265.19 587.29 265.88 638.41 266.37 689.44 266.81 741.05 267.13 793.26 267.34 845.40 267.51 2.26 BP _GYD SS 2.46 BP _GYD SS 2.84 BP _GYD SS 2.42 BP _GYD SS 2.06 BP _GYD SS 3.13 BP_GYD SS 4.04 BP_GYD SS 3.54 BP_MWD+IFR+MS 3.19 BP_MWD+IFR+MS 5.94 BP_MWD+IFR+MS 2.45 BP_MWD+IFR+MS 3.41 BP_MWD+IFR+MS 3.14 BP_MWD+IFR+MS 2.17 BP_MWD+IFR+MS 1.02 BP_MWD+IFR+MS 1.49 BP_MWD+IFR+MS 0.65 BP_MWD+IFR+MS 1.64 BP_MWD+IFR+MS 0.38 BP_MWD+IFR+MS 1.15 BP_MWD+IFR+MS 0.25 BP_MWD+IFR+MS 0.22 BP_MWD+IFR+MS 1.25 BP_MWD+IFR+MS 0.68 BP_MWD+IFR+MS 0.41 BP_MWD+IFR+MS u i [(c)2008 IDEAL ID13_OC_08] f SCHLUMBERGER Survey Report 21 -May-2008 08:38:37 Page 3 of 4 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - --- (ft) -------- (deg) ------ (deg) ------- (ft) ------ (ft) -------- (ft) -------- (ft) ------- (ft) --------- (ft) -------- (deg) ------- 100f) ----- type (deg) ----- ------ 31 2746.02 33.40 270.56 94.56 2505.21 840.93 -36.33 -897.06 897.79 267.68 0.63 BP_ MWD+IFR+MS 32 2842.54 33.47 270.62 96.52 2585.76 889.74 -35.78 -950.24 950.91 267.84 0.08 BP_ MWD+IFR+MS 33 2937.92 33.60 270.76 95.38 2665.26 938.05 -35.14 -1002.92 1003.54 267.99 0.16 BP_ MWD+IFR+MS 34 2967.43 33.62 270.56 29.51 2689.84 953.04 -34.96 -1019.26 1019.86 268.04 0.38 BP_ MWD+IFR+MS 35 3064.22 33.69 267.80 96.79 2770.41 1002.76 -35.72 -1072.88 1073.48 268.09 1.58 BP_ MWD+IFR+MS 36 3096.47 33.00 265.70 32.25 2797.35 1019.46 -36.73 -1090.58 1091.20 268.07 4.17 BP_ MWD+IFR+MS 37 3128.78 32.26 264.36 32.31 2824.56 1036.04 -38.23 -1107.93 1108.59 268.02 3.20 BP_ MWD+IFR+MS . 38 3159.49 31.27 263.69 30.71 2850.67 1051.51 -39.92 -1124.01 1124.72 267.97 3.42 BP_ MWD+IFR+MS 39 3193.80 30.72 262.35 34.31 2880.08 1068.51 -42.06 -1141.55 1142.32 267.89 2.57 BP_ MWD+IFR+MS 40 3228.06 30.31 261.36 34.26 2909.60 1085.34 -44.52 -1158.77 1159.62 267.80 1.89 BP_ MWD+IFR+MS 41 3256.57 29.66 260.76 28.51 2934.29 1099.17 -46.74 -1172.84 1173.77 267.72 2.51 BP_ MWD+IFR+MS 42 3288.64 29.38 257.58 32.07 2962.20 1114.62 -49.70 -1188.36 1189.40 267.60 4.96 BP_ MWD+IFR+MS 43 3319.45 30.08 253.60 30.81 2988.96 1129.73 -53.51 -1203.15 1204.34 267.45 6.80 BP_ MWD+IFR+MS 44 3351.41 30.91 250.25 31.96 3016.50 1145.89 -58.55 -1218.56 1219.96 267.25 5.92 BP_ MWD+IFR+MS 45 3383.15 31.18 247.14 31.74 3043.69 1162.24 -64.49 -1233.80 1235.49 267.01 5.12 BP_ MWD+IFR+MS 46 3417.50 31.40 244.02 34.35 3073.05 1180.07 -71.87 -1250.04 1252.11 266.71 4.76 BP_ MWD+IFR+MS 47 3447.07 31.66 240.61 29.57 3098.26 1195.47 -79.05 -1263.73 1266.20 266.42 6.09 BP_ MWD+IFR+MS 48 3479.05 31.50 238.42 31.98 3125.50 1212.07 -87.55 -1278.16 1281.16 266.08 3.62 BP_ MWD+IFR+MS 49 3511.23 31.56 235.45 32.18 3152.93 1228.62 -96.72 -1292.26 1295.87 265.72 4.83 BP_ MWD+IFR+MS 50 3542.60 31.59 232.42 31.37 3179.66 1244.61 -106.39 -1305.53 1309.86 265.34 5.06 BP_ MWD+IFR+MS 51 3574.08 31.84 229.55 31.48 3206.44 1260.50 -116.81 -1318.39 1323.55 264.94 4.86 BP_ MWD+IFR+MS • 52 3606.06 31.75 225.85 31.98 3233.62 1276.38 -128.14 -1330.85 1337.00 264.50 6.10 BP_ MWD+IFR+MS 53 3637.82 31.24 221.48 31.76 3260.71 1291.58 -140.13 -1342.30 1349.59 264.04 7.36 BP_ MWD+IFR+MS 54 3669.43 30.96 217.51 31.61 3287.78 1306.03 -152.73 -1352.68 1361.27 263.56 6.55 BP_ MWD+IFR+MS 55 3701.35 30.98 212.63 31.92 3315.15 1319.94 -166.16 -1362.11 1372.21 263.05 7.87 BP_ MWD+IFR+MS 56 .3732.81 30.53 208.33 31.46 3342.19 1332.83 -180.01 -1370.27 1382.04 262.52 7.13 BP_ MWD+IFR+MS 57 3764.15 30.33 204.53 31.34 3369.21 1344.85 -194.22 -1377.33 1390.96 261.97 6.17 BP_ MWD+IFR+MS 58 3796.35 30.34 201.83 32.20 3397.01 1356.55 -209.17 -1383.73 1399.45 261.40 4.23 BP_ MWD+IFR+MS 59 3827.84 29.59 197.44 31.49 3424.29 1367.16 -223.97 -1389.02 1406.96 260.84 7.36 BP_ MWD+IFR+MS 60 3859.82 28.63 192.72 31.98 3452.24 1376.72 -238.98 -1393.07 1413.42 260.27 7.78 BP_ MWD+IFR+MS [(c)2008 IDEAL ID13_OC_08] SCHLUMBERGER Survey Report 21 -May-2008 08:38:37 Page 4 of 4 --- Seq -------- Measured ------ Incl ------- Azimuth ------ Course -------- TVD -------- Vertical ------- Displ --------- Displ ------- Total -------- At ----- DLS ----- ------ Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - --- (ft) -------- (deg) ------ (deg) ------- (ft) ------ (ft) -------- (ft) -------- (ft) ------- (ft) --------- (ft) ------- (deg) -------- 100f) ----- type (deg) ----- ------ --- 61 -------- 3892.65 ------ 28.11 ------- 188.56 ------ 32.83 -------- 3481.13 -------- 1385.32 ------- -254.30 --------- -1395.96 ------- 1418.93 -------- 259.68 ----- 6.22 - BP ---- ------ _MWD+IFR+MS 62 3921.94 27.97 186.15 29.29 3506.98 1392.24 -267.95 -1397.72 1423.17 259.15 3.90 BP _MWD+IFR+MS 63 3953.36 27.71 185.06 31.42 3534.76 1399.23 -282.56 -1399.15 1427.40 258.58 1.82 BP _MWD+IFR+MS 64 3985.07 27.33 186.92 31.71 3562.88 1406.28 -297.13 -1400.68 1431.85 258.02 2.96 BP _MWD+IFR+MS 65 4016.75 26.24 188.33 31.68 3591.16 1413.51 -311.28 -1402.57 1436.70 257.49 3.98 BP _MWD+IFR+MS 66 4048.55 25.02 188.51 31.80 3619.84 1420.65 -324.88 -1404.59 1441.67 256.98 3.84 BP _MWD+IFR+MS 67 4079.75 23.53 189.47 31.20 3648.28 1427.41 -337.55 -1406.59 1446.52 256.51 4.94 BP _MWD+IFR+MS 68 4111.85 22.10 189.90 32.10 3677.86 1434.09 -349.82 -1408.68 1451.47 256.05 4.48 BP _MWD+IFR+MS 69 4143.60 20.74 189.60 31.75 3707.42 1440.34 -361.25 -1410.64 1456.17 255.64 4.30 BP _MWD+IFR+MS 70 4174.25 19.45 190.71 30.65 3736.20 1446.06 -371.61 -1412.50 1460.56 255.26 4.39 BP _MWD+IFR+MS 71 4205.27 19.63 191.04 31.02 3765.44 1451.82 -381.80 -1414.46 1465.08 254.89 0.68 BP _MWD+IFR+MS 72 4236.35 19.62 190.84 31.08 3794.71 1457.62 -392.05 -1416.44 1469.69 254.53 0.22 BP _MWD+IFR+MS 73 4268.85 17.68 189.53 32.50 3825.50 1463.29 -402.28 -1418.28 1474.23 254.16 6.11 BP _MWD+IFR+MS 74 4298.91 16.29 189.88 30.06 3854.25 1468.01 -410.93 -1419.76 1478.03 253.86 4.64 BP _MWD+IFR+MS 75 4329.70 15.21 189.08 30.79 3883.89 1472.47 -419.18 -1421.14 1481.67 253.57 3.58 BP _MWD+IFR+MS 76 4355.14 15.37 188.98 25.44 3908.43 1476.01 -425.80 -1422.19 1484.57 253.33 0.64 BP _MWD+IFR+MS 77 4408.52 15.79 187.77 53.38 3959.84 1483.44 -439.99 -1424.28 1490.69 252.83 0.99 BP _MWD+IFR+MS 78 4440.91 15.77 188.65 32.39 3991.01 1487.98 -448.70 -1425.53 1494.48 252.53 0.74 BP _MWD+IFR+MS 79 4535.53 15.73 189.36 94.62 4082.08 1501.52 -474.07 -1429.55 1506.11 251.65 0.21 BP _MWD+IFR+MS 80 4630.49 15.81 188.51 94.96 4173.47 1515.10 -499.57 -1433.56 1518.11 250.79 0.26 BP _MWD+IFR+MS 81 4724.94 16.01 189.63 94.45 4264.30 1528.78 -525.13 -1437.64 1530.55 249.93 0.39 BP _MWD+IFR+MS • 82 4820.99 16.07 189.12 96.05 4356.61 1542.92 -551.32 -1441.97 1543.77 249.08 0.16 BP _MWD+IFR+MS 83 4917.57 15.95 190.47 96.58 4449.44 1557.28 -577.56 -1446.50 1557.54 248.23 0.41 BP _MWD+IFR+MS 84 5013.19 15.90 190.51 95.62 4541.39 1571.69 -603.36 -1451.27 1571.70 247.43 0.05 BP _MWD+IFR+MS 85 5113.85 15.40 190.00 100.66 4638.32 1586.51 -630.08 -1456.11 1586.59 246.60 0.52 BP _MWD+IFR+MS 86 5165.00 15.40 190.00 51.15 4687.64 1593.87 -643.46 -1458.47 1594.10 246.19 0.00 Projected to TD [(c)2008 IDEAL ID13_OC_08] 08/05/08 ~c~berger Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth WPII .Inh S N0.4812 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 1 nn flnerrinfinn f1.~fn DI r..1... e+n Pi-03 12021163 MEMORY SBHPS 06/11/08 1 MPC-15 12066534 MEM INJ PROFILE / 07/19/08 1 L-205 12061697 MDT (SUMMARY PRINT) 05/26/08 1 1 L-205 12061697 MDT 05/26/08 1 1 04-22A 12005220 MEMORY LDL G - 07/26/08 1 1 H-22A 11968956 SBHP SURVEY ~ ` 07/28/08 1 1 C-37A 12005221 MEMORY CBL 07/28/08 1 1 a.rw~ rw new ~r«vvc ~cvc~r ~ o l ~IV19119V !'117V nGl Vn1Y117\7 VIYC bVf T CA\.f7 1 V: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date Delivered: ',o i'~iU~', :n., Alaska Data & Consulting Services 2525 Gambell Stre t, Suite Anchorage, AK 3-283 ATTN: Beth Received by: o~i2sio8 ~~ I~ ~chtpmberger N0.4799 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 98503-2838 Attn: Christine Mahnken ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Wall .Inh S Inn nasrrintinn nata RI Cnlnr Cn G-29A 12096905 MEM PROD PROFILE ~ 07/18/08 1 P1-04 12017505 PROD PROFILE 07/17/08 1 1 L-219 11999028 FLUID DENSITY LOG 07/1W08 1 1 L-205 11999021 USIT 06/17/08 1 1 X-16A 11978465 RST 06/03/08 1 1 K-14A 11628804 MCNL 11/15/07 1 1 rLCNAC AV n1YVVYLCUIaC nCl.C1Y I dr .~IUIVIrvta ArvU Fltl UF1rvI1VG Vrvt GVYC tAGrl 1 V: BP Exploration (Alaska) Inc. Petrotechnical Data Center' LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date Delivered: Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 9 503-28 $ ATTN: Beth / Received by: V ~~ • i Schlum6erger Drilling & Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Well No L-205PB1 Dispatched To: Christine Mahnken (AOGCC) Date Dispatched: 27-May-08 Installation/Rig Nabors-9ES _. Dispatched By: Franklin Medina Data No Of Prints No of Floppies Surveys 2 1 Please sign and return to: James H.,lonnson RecelVed By: BP Exploration (Alaska) Inc. Petrotechnical Data Center (LR2-1) 900 E. Benson Blvd. Anchorage, Alaska 99508 Fax:907-564-4005 e-mail address: johnsojhC~?bp.com LWD Log Delivery V2.1, 03-06-06 ~ ~. f"~ ~ ~) SARAH PALIN, GOVERNOR ~-7~A OII/ ~ ~ 333 W. 7th AVENUE, SUITE 100 COI~TSERQATIOrIT COMMISSIOIQ ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Robert Tirpack Engineering Team Leader BP Exploration Alaska, Inc. PO Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Orion Oil Pool, L-205 BP Exploration Alaska, Inc. Permit No: 208-053 Surface Location: 2361' FSL, 3786' FEL, SEC. 34, T12N, R11E, UM Bottomhole Location: 2138' FNL, 4960' FEL, SEC. 03, T11N, R11E, UM Dear Mr. Tirpack: Enclosed is the approved application for permit to drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit iri the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659-3607 (pager). incerely, Daniel T. Seamount, Jr. Chair DATED this~~ day of April, 2008 cc: Department of Fish & Game, Habitat Section w/o encl. - Department of Environmental Conservation w/o encl. ~~~~ , (~ STATE OF ALASKA ~' o'I ~~ ALAS~IL AND GAS CONSERVATION COMMI~N PERMIT TO DRILL ~~, 20 AAC 25.005 ~~ RECEIVE® Ai'~ (~ 3.2008 1 a. Type of work ®Drill ^ Redrill ^ Re-Entry 1 b. Current Well Class ^ Exploratory ^ Development Gas ^ Service ^ Multiple Zone ^ Stratigraphic Test ®Development Oil ~ ^ Single Zone 1 c. Specify if well is p op~~QQS,,~d for: '' ^ Coalbed t~k~ ExJ~ I~dF~es~OtCl . ^ Shale Gas 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 • 11. Well Name and Number: L-205 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 8977' TVD 4362' 12. Field /Pool(s): Prudhoe Bay Field / Orion 4a. Location of Well (Governmental Section): Surface: ' ' 7. Property Designation: /~bL ADL 028241 OLSZ ~ Schrader Bluff .7•°~ FEL, SEC. 34, T12N, R11 E, UM 2361 FSL, 3786 Top of Productive Horizon: ~ 411' FEL, SEC. 33, T12N, R11 E, UM 1330' FSL 8. Land Use Permit: 13. Approximate Spud Date: April 15, 2008 , Total Depth: ~ 2138' FNL, 4960' FEL, SEC. 03, T11N, R11E, UM 9. Acres in Property: 2560 14. Distance to Nearest Property: 4970' 4b. Location of Well (State Base Plane Coordinates): Surface: x-583130 y-5978082 • Zone-ASP4 10. KB Elevation Plan (Height above GL): 76.7 ~ feet 15. Distance to Nearest Well Within Pool: >G4-r~ ~{• 16. Deviated Wells: Kickoff Depth: 3030 feet Maximum Hole An le: 101 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 1910 ~ Surface: 1470' 18. Casin Pr ram: S ecifi lio ns To - Settin th -Bo ttom uanf of Cement c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta a data N//A 20" 129# X-56 Weld 153' Surface 153' Surface 153' Driven 13-1/2" 10-3/4" 45.5# L-80 BTC 3017' Surface 3017' Surface 2742' 663 sx Dee Crete 441 sx Class'G' 9-7/8" 7-5/8" 29.7# L-80 BTCM/TCII 5416' Surface 5416' Surface 4412' 359 sx Clas 'G' 6-3/4" 4-1/2" 12.6# L-80 IBT 3377' 5600' 4421' 8977' 4362' Uncemented Slotted Liner 19. PRESE NT WELL CONDITION SUMMARY (To be completed for Redrill and Re-entry Operations) Total Depth MD (ft): Total Depth TVD (ft)` Plugs (measured): Effective Depth MD (ft): Effective Depth TVD (ft): Junk (measured): Easing Length ize Cement Volume MD D Conductor /Structural Surface Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth ND (ft): 20. Attachments ^ Filing Fee, $100 ^ BOP Sketch ~ Property Plat ^ Diverter Sketch ®Drilling Program ^ Time vs Depth Plot ^ Shallow Hazard Analysis ^ Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Printed Name Robert Tirpack Si nature ~. Contact Scott Kolstad, 564-5347 Title Engineering Team Leader Prepared By Name/Number: Phone 564-4166 Date ~ 3 ~ Terrie Hubble, 56a-4628 Commission Use Onl Permit To Drill ~~,.p Number: ~O OS.3 API Number: 50-C~Z9'Z338~-~ Permit Approval Date: See cover letter for other re uirements Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed me~tha/ne, gas hydrates, or gas contained shales: ~,,,/ Samples Req'd: ^~ ~es I,s1 No Mud Log Req'd: ^ Yes LJ No ~~ ~jt ~~ ~~~'~-"' HZS Measures: LyJ Yes ^ No Directional Survey Req'd: [I)'Yes ^ No Other: ~cs.~ `~cc f'~Zi"~C~v ~ ~ Cx c..~~P~~ ~E '~ ~, ~ ~~ ~ I~C`~S ~ ~~ ~~ ~,1r\~ `~) / APPROVED BY THE COMMISSION d Date ,COMMISSIONER Form 10-401-Revised 1L/2005 ~ Submit In Duplicate ORIGINAL ~ ~?°~ .o$ I Well Name: L-205 L-205L1, L-205L1-01, L-205L2, L-205L3, & L-205L4 Drill and Complete Plan Summary Type of Well (producer or injector): I Schrader Bluff Nb, OA, OBa, OBb, OBc, and OBd Multi-Lat /r.C7 ~~,~ Target X Y Z Township Range Section FSL FEL TVDss Surface 583130.4 5978082.2 12N 11E 34 2361 3786 L-205 OBb Target 581240 5977030 -4330' 12N 11E 33 1330 411 Start: L-205 OBb Target 582015 5973570 -4285' 11N 11E 3 3141 4960 End: L-205L1 OBc Target 581280 5976780 -4335' 12N 11E 33 1080 374 Start: L-205L1 OBc Target 582020 5973570 -4345' 11N 11E 3 3141 4955 End: L-205L1-01 OBd 581320 5976600 -4335' 12N 11E 33 899 336 Tar et Start: L-205L1-01OBd 582015 5973560 -4410' 11N 11E 3 3131 4960 Tar et End: L-205L2 OBa Target 581289 5977479 -4175' 12N 11E 33 1779 356 Start: L-205L2 OBa Target 582015 5973670 -4245' 11N 11E 3 3241 4959 End: L-205L3 OA Target 581318 5977589 -4105' 12N 11E 33 1888 325 Start: L-205L3 OA Target 582015 5973770 -4185' 11N 11E 3 3341 4957 End: L-205L4 Nb Target 581377 5977743 -3975' 12N 11E 33 2042 264 Start: L-205L4 Nb Target 581960 5973870 -4035' 11N 11E 3 3441 2569 End: AFE Number: TBD Ri Nabors 9ES GL: 48.2 • RT: 28.5 ~ RTE: 76.7 Estimated Start Date: Aril 15, 2008 O eratin da s to com lete: 72 Well Information Distance to Nearest Property: 4970 feet to PBU boundary. Distance to Nearest Well in Pool: 200 feet to L-121 A well bore near toe of well at the top Nb level (4500' SS). Well Type: Schrader N and O-sand Sexa-lateral Producer Current Status: New well Conductor: 20", 129 ppf, X-56, ERW set at 152.5' KB BHT: 75 Degrees F at -3950' SS 83 Degrees F at -4300' SS BHP: 8.5 - 8.7 EMW ppg in the Ugnu and Schrader sands L-205 Permit to Drill 3/25/2008 SDE: S. Kolstad PE: T. West GEO: G. Bernaski Formation To s TVDss and Estimated Pore Pressures Est. Formation To s Uncertain Commercial Hydrocarbon Bearin Est. Pore Press. Est. Pore Press. Formation TVDss feet Yes/No Psi (pP9 EMW NOTE: All formation tops are required from 1000' above proposed KOP to TD for sidetracks NOTE: All formation to s are re uired from surface to TD for all new wells G1 -250 +/-50' No 113 8.7 SV6 -890 +/-50' No 401 8.7 SV5 -1545 +/-50' No 695 8.7 SV4 -1675 +/-50' No 754 8.7 Base Permafrost -1675 +/-50' No 754 8.7 SV3 -2020 +/-50' Gas H drates 909 8.7 SV2 -2180 +/-50' Gas H drates 981 8.7 SV1 -2470 +/-50' Gas H drates 1112 8.7 UG4 -2750 +/-50' Thin coal 1238 8.7 UG4A -2780 +/-50' Heavy Oil between -2780 and -2880' SS 1251 8.7 UG3 -3095 +/-50' Thin coals 1393 8.7 Fault #1 L Pad Fault -3365 +/- 150' M.D. UG1 -3535 +/-50' Heavy Oil from - 3625' to -3735' ss 1591 8.7 Fault #2 -3745 +/- 100' M.D. UG_Ma -3745 +/-50' Yes 1685 8.7 UG_Mb1 -3790 +/-50' Yes 1706 8.7 UG_Mb2 -3845 +/-50' Yes 1730 8.7 UG_Mc -3910 +/-50' Yes 1760 8.7 SB_Na -3960 +/-25' Yes 1762 8.6 SB_Nb -3980 +/-25' Yes 1771 8.6 SB_Nc -4005 +/-25' Yes 1782 8.6 SB_Ne -4015 +/-25' Yes 1787 8.6 SB_OA -4115 +/-25' Yes 1815 8.5 SB_OBa -4175 +/-25' Yes 1841 8.5 SB_OBb -4215 +/-25' Yes 1859 8.5 SB_OBc -4265 +/-25' Yes 1881 8.5 SB_OBd -4310 +/-25' Yes 1901 ~ 8.5 SB_OBe not reached +/-25' Yes Well TD Criteria TD for all laterals will be at end of polygon. No extensions i ?? ~~ft Rathole, etc.) beyond the end of the polygons are planned. ('e ft TVD, . . Comments Formation pressures in the O and N sands and are extrapolated from L-106 and L-116 RFT formation pressures. Ugnu M sands and shallower pressure data is extrapolated from regional Schrader Bluff MDT pressure. trends at a .45 psi/ft pressure gradient. L-205 Permit to Drill 3/25/2008 Mud Program: 13-1/2" Surface Hole Mud Pro erties: Spud -Freshwater Mud Interval Densit Funnel vis YP PH FL Initial 8.5 - 9.1 250-300 50-70 8.5-9.0 NC-8.0 Base Perm 9.0 - 9.5 200-250 30-45 8.5-9.0 8.0 Interval TD 9.6 max 200-250 30-40 8.5-9.0 5.0-7.0 8'/z" Corin fluid Mud Pro erties: LVT-200 MOBM (Versa-Core) Interval Densit Stabilit Oil: Water Ratio YP PV API Filtrate MBT All five Laterals 10.4 -10.5. >2000 99:1 15-19 <20 4-5.5 < 6 9-7/8" Intermediate Hole Mud Pro erties: Freshwater Mud (LSND) Interval Densit YP PV API Filtrate MBT H Chlorides Surface shoe to interval TD 8.8 - 9.3 22-30 12-18 4-6 < 20 9.0-9.5 <600 6-3/4" Production Hole Mud Pro erties: LVT-200 MOBM (Versa-Pro) Interval Densit Stabilit Oil: Water Ratio YP PV API Filtrate MBT All five Laterals 9.3 650-900 80:20, initial 15-19 <20 4-5.5 < 6 Survev and Loggina Program: 13-1/2" Hole Section: Surface Gyro may be needed O en Hole: MWD / GR Cased hole: None 9-7/8" Intermediate Hole: Surveys will be IIFR corrected real time and multi-station O en hole LW D: GR/Res/Neu/Azimuthal Den /Densit Cali er PWD O en hole wireline: Drill i e conve ed MDT Cased Hole: USIT 6-3/4" Produciton Holes: Surveys will be IIFR corrected real time and multi-station O en hole: MWD / GR /Res /Azimuthal Den /Neu /AIM / PW D Cased Hole: N/A Casina/Tubina Proaram Lateral Hole Size/ Csg / Wt/Ft Grade Conn Burst Collapse Length Top Bottom Name formation Tbg (psi) (psi) MD / MD /TVD O.D. TVD driven 20" 129# X-56 Weld GL 152.5' /152.5' 13-'/z" 10-3/a" 45.5# L-80 BTC 3,580 2,090 3017' GL 3017' / 2742' 9-'/s" 7-5/8" 29.7# L-80 BTC-M 6,890 4,790 5416' GL 5416' / / TC-II 4411.7' L-205 6-3/a" OBb 4-'h" 12.6# L-80 IBT N/A N/A 3377' 5600' / 8977' / slotted 4421' 4362' L-205 6-3/a" OBc 4-~h" 12.6# L-80 IBT N/A N/A 3068' 5905' / 8973' / L1 slotted 4412' 4422' L-205 6-3/a" OBd 4-~h" 12.6# L-80 IBT N/A N/A 3979' 5000' / 8979' / Li -01 slotted 4283' 4487' L-205 6-3/a" OBa 4-~/z" 12.6# L-80 IBT N/A N/A 3934' 4933' 1 8867' / L2 slotted 4252' 4322' L-205 6-3/a" OA 4-'h" 12.6# L-80 IBT N/A N/A 3957' 4800' / 8757' / L3 slotted 4182' 4262' L-205 6-3/a" Nb 4-~/z" 12.6# L-80 IBT N/A N/A 4051' 4590' / 8641' / L4 slotted 4052' 4107' Tubing 4-~/z" 12.6# 13Cr- Vam 8,430 7,500 4560' GL 4560'/ 80 To 4032' °~ L-205 Permit to Drill 3/25/2008 Surface and Anti-Collision Issues Surface Shut-in Wells: L-121 and L-110 will require surface shut-in and well house removal in order to move over well L-205. No other wells should require well house removal and surface shut-in. Close Approach Shut-in Wells: All wells pass the major risk close approach scan. Close Approach Well List: Lateral Close Ctr-Ctr Reference Allowable Mitigation Approach Distance MD Deviation Wetl Name L-205 L-04 77.7' 563' 67.9' Use Traveling C linder L-205 L-109 62.0' 583.3 50.4' Use Traveling C linder L-205 L-114A 55.4' 921.1' 41.2' Use Traveling C linder L-205 L-116 46.1' 489.5' 38.5' Use Traveling C linder L-205 L-121 16.2' 290' 10.9' Use Traveling C linder L-205 L-50 31.2' 979.4' 16.1' Use Traveling C linder L-205 L-51 67.15' 1120' 46.3' Use Traveling C linder Cement Calculations Casing Size: 10-3/a -in 45.5-Ib/ft L-80 BTC surface casing Basis: Lead: 250% excess over gauge hole in permafrost, 30% excess over gauge hole below permafrost Lead TOC: Surface Tail: 1,000' of open hole with 30% excess, plus 80' shoe track Tail TOC: 2,017' MD 1,000' MD above shoe Total Cement Volume: Spacer 50 bbls of Viscosified Spacer weighted to 10.10 ppg (Mud Push) Lead 439 bbls, 2465 cuft, 663 sks 10.7 Ib/ al Dee Crete - 3.72 cuft/sk Tail 92 bbls, 516 cuft, 441 sks 15.8 Ib/gal Class G + adds -1.17 cuft/sk Dura stone in last 15 bbls Temp BHST ~55° F, BHCT ~60° F estimated by Schlumberger In the event that cement is not circulated to surface during the initial surface casing cement job, notify the AOGCC of the upcoming remedial cement work for possible witness of cement to surface. Casing Size: 7-5/8", 29.7-Ib/ft L-80 BTC-M / TC-II intermediate casin Basis: Lead: None Lead TOC: N/A Tail: 1416' of open hole with 30% excess, plus 80' shoe track Tail TOC: 4000' MD 597' MD above the Ma, 1000' MD below Surface Shoe Total Cement Volume: Wash 20 bbls CW100 S acer 50 bbls of Viscosified S acer Mud ush Wei hted to 10.3 Tail 74.1 bbls, 416 cuft, 359 sks 15.8 Ib/ al G + Gasblok -1.16 cuft/sk Temq BHST 83 Degrees F at -4300' SS from SOR 4 L-205 Permit to Drill 3/25/2008 Centralizer Recommendations 10-3/a" Casing Centralizer Placement a) Run (25) 10-3/4" Bow-spring centralizers attached over the collar of each joint of casing from the casing shoe up to 1,000' MD above the shoe. 7-g/e" Casing Space Out a) Spaceout the 7 5/" casing to place a full joint in the window area of the OBa, OA, and Nb sands. b) Place one RA tag (3 pips) in the 7-5/8" casing 50-100' below each window (3 total: below Nb, OBa, OA lateral windows). 5 L-205 Permit to Drill 3/25/2008 Well Control Surface hole will be drilled with diverter. The intermediate hole well control equipment consisting of 5000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. BOP equipment will be tested to 3000 psi. The BOP test frequency will be conducted on a 14 day frequency, with a function test every 7 days. Except for significant operational issues that may effect well integrity or pose safety concerns, an extension to the 14 day BOP test period should not be requested. Diverter, BOPE and drilling fluid system schematics on file with the AOGCC. Surface Hole A diverter will be nippled up and function tested prior to drilling surface hole Intermediate Section • Maximum anticipated BHP: 1,910 psi -Schrader OBd (8.5 ppg @ 4,310' TVDss) . • Maximum surface pressure: 1,470 psi -Based on a full column of gas @ 0.10 psi/ft • Planned BOP test pressure: ~3SQ@fT psi/250 psi Rams °~~C~ 2,500 psi/250 psi Annular • 10-3/4" Casing Test: 3,000 psi • Integrity Test - 9-7/8" hole: LOT • Kick Tolerance: 100 bbls with a 12.5 ppg EMW LOT , 8.6 ppg OBd Production Section • Maximum anticipated BHP: 1,910 psi -Schrader OBd (8.5 ppg @ 4,310' TVDss) • Maximum surface pressure: 1,470 psi -Based on a full column of gas @ 0.10 psi/ft - • Planned BOP test pressure: ~;66'U'psi/250 psi Rams ~ ~~~.aa,~_. Sc~ 2,500 psi/250 psi Annular SEE C ~~ ~ s y }'''1 _ • 7-5/8" Casing Test: 35C7C~ ,~A6'psi ~ ~~ og~ • Integrity Test - 6-3/4" hole: FIT to 11.5ppg EMW for OBb lateral only • Kick Tolerance: Infinite at OBb, OBc, OBd, OBa, OA, and Nb with an 11.5 ppg EMW FIT • Planned completion fluid: 9.3 ppg SF OBM in Laterals, 9.3 ppg Brine, 6.8 ppg diesel in mother bore Disposal • No annular injection in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS- 04. Any metal cuttings will be sent to the North Slope Borough. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul all Class I waste to Pad 3 for disposal. Varience Request: • To avoid the risk of plugging the flow line with large rocks and wood encountered while drilling surface hole, it is requested to drill without a flow paddle for the first portion of the surface hole. While the flow paddle is removed from the flow line, PVT alarms will be used and the pit levels accurately monitored for any pit gain. Also, a visual check will be made during connections by looking down the riser to ensure the well is not flowing. After returned debris that could plug the flow line diminishes the flow paddle will be reinstalled. 6 L-205 Permit to Drill 3/25/2008 i ~ Drilling Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE Well Control A. The Schrader in the target fault block is expected to be normal pressured at 8.5-8.6 ppg EMW. II. Hydrates and Shallow gas A. Gas Hydrates are expected at L-pad from the SV5 thru the SV1 sands below the base of the permafrost. Setting casing through the SV1 should keep hydrate exposure from extending past the surface hole. Recommended practices for drilling hydrates should be followed in the surface hole. Occasionally hydrates are encountered below the SV1. III. Lost Circulation/Breathing A. Lost circulation or well bore breathing are not expected in this well. IV. Kick Tolerance/Integrity Testing Kick Tolerance /Into ri Testin Summa Table Casing set / Interval Maximum Influx Volume Mud Weight Exp Pore Press LOT /FIT Surface / 9 7/8" 100 9.3 8.5 (OBd) Assuming 12.5 LOT Intermediate / 6-3/4" Infinite 9.3 8.5 (OBc) 11.5 (FIT for OBb lateral onl An FIT will only be performed for the OBb lateral, not the OBc, OBd, OBa, OA, or Nb. V. Hydrogen Sulfide L Pad is not designated as an H2S site, however Standard Operating Procedures for H2S precautions should be followed at all times. No measurable H2S is being produced from the formation at this time. However 5 - 50 ppm is expected as a result of the use of Ivishak gas lift gas. All L Pad gas lift wells will likely have H2S in this concentration. Note that all injection has been with produced water not seawater. H2S levels are expected to remain low until the waterflood matures. Recent HAS data from the oad is as follows: ell Name H2S Level Date of Readin #1 Closest SHL Well H2S djacent well to the Level L-110 70 m 10/11/2007 east of L-205 SHL #2 Closest SHL Well H2S djacent well to the Level L-121 A 15 m 8/28/2007 est of L-205 SHL #1 Closest BHL Well H2S Kuparuk producer Level L-114A 0 m 8/14/2007 near heel of laterals #2 Closest BHL Well H2S Kuparuk producer Level L-121 A 15 m 8/28/2007 near toe of laterals Max. Recorded H2S on Pad/Facilit L-120 50 m 10/20/2006 VI. Faults A. Two faults are expected to be crossed in L-205. No losses are expected to be associated with these . faults. No faults are expected in the reservoir section, although sub seismic faults with throws <25' may be encountered. Fault Location MD TVDss Throw Direction Uncertainty Fault #1 - L Pad Fault 3824 -3365 -50'-80' West +/- 150' M.D. Fault #2 - Ugnu M Sand Interval 4277 -3745 -40'-70' West +/-100' M.D. CONSULT THE PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION 7 L-205 Permit to Drill 3/25/2008 L-205, L-205 L1, L-205 L1-01, L-205 L2, L-205 L3, & L-205 L4 DRILL AND COMPLETE PROCEDURE SUMMARY Pre-Riq Work: 1. A 20" non-insulated conductor has already been set and surveyed. Weld an FMC landing ring for the FMC Gen 5 Wellhead on the conductor. 2. If necessary, level the pad and prepare location for rig move. Prepare neighboring wells for the rig move and production simops. Drilling Riq Operations: 1. MIRU Nabors 9ES. Nipple up diverter spool and riser. Function test diverter. PU 4" DP and stand back in derrick. 2. MU 13-~/z" drilling assembly with MWD/GR and directionally drill surface hole to approximately 80' TVDss above the Top of the UG4A (±3017' MD). 3. Run and cement the 10-3/a", 45.5#, L-80 BTC surface casing back to surface. Test the 10-3/a" casing to 3,000 psi for 30 minutes at plug bump. ND drilling spool and riser and NU casing /tubing head. NU BOPE and test to 3,000 psi. • L-205 PB1 4. MU 9-%8" directional drilling assembly with a bent housing motor. Drill out the float equipment and 20' of new formation. Displace the well to new 9.3 ppg Versa Pro LS MOBM drilling fluid. Perform a LOT. POOH. 5. MU 8'/z" directional drilling assembly with Schlumberger Power Drive RSS, Gamma at bit, MWD/ARC GR/Res/Den/Neu/PWD and a Ghost reamer t1 ,000' from the bit. 6. Directionally drill ahead to 50' above projected core point. Displace the well bore to the Versa Core coring fluid. Drill to core point which is prognosed at -3940' TVDss. 7. Core 480' starting in the mid Mc through the base Schrader Bluff OBd. 8. Drill ± 200' of logging rat hole. 9. Log the open hole interval using wireline-conveyed Schlumberger Platform Express GR/Res/Neu/Den and Dipole Sonic 10. MU plug back BHA. RIH and spot a series of cement plugs to fill the OH from TD to inside the surface casing shoe. 11. POOH. • L-205 OBb Lateral 12. PU 4" DP as needed. MU 9 7/8" directional drilling assembly with MWD/GR/Res/Den/Neu/PWD and a Ghost reamer 11,000' from the bit. 13. Drill out cement to the surface casing shoe. 14. Displace the well bore to 8.8 ppg LSND mud. 15. Drill to TD at 20' TVD below the top of the OBd. 16. RU and run drill pipe conveyed MDT logs. 17. Make a clean out run to TD. 18. MU and run 7-s/8", 29.7#, L-80, BTC-M, TC-II casing to TD. Cement in one stage to 4,000' MD (±1000' MD from the surface casing shoe). Bump plug with seawater. Test the 7 5/e" casing to ~P10 psi for 30 minutes. r 19. Clean pits for displacement. Freeze protect 7 6/8" x 10-3/a" annulus to 2,200' TVD. ~~~ P2~~ r 20. PU 6-3/a" conventional assembly with MWD/GR/Res/Den /Neu/AIM/PWD and RIH to the float collar. 21. Displace well over to 9.3 ppg Versapro LS MOBM. Drill out shoe track, circulate and condition mud. Drill 20' of new formation and perform FIT to 11.5 ppg EMW. 22. Directionally drill ahead to TD geo-steering through the OBb to TD. Back ream out of the hole to the shoe, ~~~ circulate and condition mud. RIH to TD and displace well bore to SF MOBM. 23. POOH to near OBa window depth, log the OBa RA marker with GR, log across the OA and Nb windows also. ~ POOH. 24. MU and run 4-'/z" 12.6# L-80 BTC-M slotted liner with swell packers and Aluminum billet liner top. Position billet in a tangent section at ±5,600'. POOH. 8 L-205 Permit to Drill 3/25/2008 ~ ~ • L-205L1 OBc Lateral 25. RIH with 6-3/a" sidetracking /drilling assembly with MWD/GR/Res/Den/Neu/AIM/PWD to AI billet. Displace well over to 9.3 ppg Versapro LS MOBM. Trench for sidetrack and time drill off billet to sidetrack. 26. Directionally drill to the planned TD in the OBc. Back ream out of hole to shoe, circulate and condition mud. RIH to TD and displace well bore to 9.3 ppg Versapro SF MOBM. POOH. 27. MU and run 4-~h" 12.6# L-80 BTC-M slotted liner with swell packers and Aluminum billet liner top. Position billet in a tangent section at ±5,905'. POOH. • L-205L1-01 OBd Lateral 28. RIH with 6-3/a" sidetracking /drilling assembly with MWD/GR/Res/Den/Neu/AIM/PWD to AI billet. Displace well over to 9.3 ppg Versapro LS MOBM. Trench for sidetrack and time drill off billet to sidetrack. 29. Directionally drill ahead to TD geo-steering through the OBd to TD. Back ream out of the hole to the shoe, circulate and condition mud. RIH to TD and displace well bore to SF MOBM. 30. MU and run 4-~/z" 12.6# L-80 BTC-M slotted liner with liner hanger and liner top packer. Position TOL for OBa whipstock. POOH. • L-205L2, OBa Lateral 31. PU the 7 5/8" whipstock assembly. Set the whipstock on the OBd liner top packer such that the top of the window is near the top of the OBa sand. Orient and set whipstock. Shear off Whipstock. Displace well over to 9.3 ppg Versapro LS MOBM. Mill window. POOH. 32. RIH with 6-3/a" conventional drilling assembly with MWD/GR/Res/Den/Neu/AIM/PWD to whipstock. Directionally drill to the planned TD of OBa lateral. Back ream out of hole to KOP, circulate and condition mud. RIH to TD and displace well bore to SF MOBM. POOH. 33. Pull whipstock #1. Run and set 4-~/z" slotted liner and hook hanger. POOH and LD liner running string. Run Baker Lateral Entry Module #1 with ZXP liner top packer, POOH. • L-205L3, OA Lateral 34. PU the 7-s/8" whipstock assembly. Set the whipstock on the OBa liner top packer such that the top of the window is near the top of the OA sand. Orient and set whipstock. Shear off Whipstock. Displace well over to 9.3 ppg Versapro MOBM. Mill window. POOH. 35. RIH with 6-3/a" conventional drilling assembly with MWD/GR/Res/Den/Neu/AIM/PWD to whipstock. Directionally drill to the planned TD of the OA lateral. Back ream out of hole to KOP, circulate and condition mud. RIH to TD and displace well bore to SF MOBM. POOH. 36. Pull whipstock #2. Run and set 4-~/z" slotted liner and hook hanger. POOH and LD liner running string. Run Baker Lateral Entry Module #2 with ZXP liner top packer. POOH. • L-205L4, Nb Lateral 37. PU the 7 5/$" whipstock assembly. Set the whipstock on the OA liner top packer such that the top of the window is near the top of the Nb sand. Orient and set whipstock. Shear off of Whipstock. Displace well over to 9.3 ppg Versapro MOBM. Mill window. POOH. 38. RIH with 6-3/a" conventional drilling assembly with MWD/GR/Res/Den/Neu/AIM/PWD to whipstock. Directionally drill to the planned TD of the Nb lateral. Back ream out of hole to KOP, circulate and condition mud. RIH to TD and displace well bore to SF MOBM. POOH. 39. Pull whipstock #3. Run 4-~/z" slotted liner and hook hanger. POOH and LD liner running string. Run Baker Hook Hanger Lateral Entry Module #3 with ZXP liner top packer. Clean pits for displacement. Displace mother bore over to 9.3 ppg KCL brine. POOH. 40. MU 4-~/z" 12.6# Vam Top, 13Cr-80 completion assembly and RIH. See completion schematic for details. Land tubing hanger and run in lockdown screws. 41. Drop RHC ball and rod and set packer as per Baker recommendation and test tubing to 3,000 psi and annulus to 3,000 psi. Shear DCK valve. 42. Install two-way check and test to 1,000 psi from below. Nipple down the BOPE. Nipple up and test the double master valves to 5,000 psi. 43. Pull two-way check. Reverse in brine with corrosion inhibitor to protect the annulus and freeze protect the well to 2,200' TVD. Install VR plug in 7 5/$" casing annulus valves. 44. Install BPV. Secure the well and rig down /move off Nabors 9ES. Post-Rig Work: 1. MIRU slickline. Pull the ball and rod /RHC plug. 2. Pull out DCK shear valve, install GLV in all of the other mandrels as per the PE. 9 L-205 Permit to Drill 3/25/2008 -205, L , L1-01, L2, L3, & L4 PROPOSED COMPLETION TREE: FMC 4-1/16" 5M WELLHEAD: FMC Gen 5 System 20" X " 215.5 Ib/ft, A53 ERW Insulated @ 109' 11", 5M csg.head w/ 7" mandrel hanger 8 packoff 11" x 11", 5M, tbg spool w/ Hallibu on X-Nipple (3.813" ID) @ 2200' TVD 11" x 4-1/2" tubing hanger with control line ports 11" X 4-1/16" Adaptor Flange 4-1/2' 12.6 Ib/ft, L-80, BTC-M Orig KB elev (N-9ES) _' Coupl ng OD: 5.2" D ri ft/ I :3.833"/3.958" 10-3/4", 45.5 L-80 BTC Csg @ 3,017' MD 4.5" Baker slidin sleeve with 3.813" ID @ GLM Design: 7-5/8" X 5-1/2" B ker PRM Packer @ 4482' ~ -TBD' TVD - 4-1/2" X 1" KBG-2 - SV Halliburton X-Ni les (3.813" ID) #3 -TBD' TVD - 4-1/2" X 1" KBG-2 - DV I #2 - 4 jts above sliding sleeve - 4-1/2" X 1"KBG-2 - DV Slb N G 4.5° WLEG @ 550' MD #1 - 2 jts above sliding sleeve - 4-1/2" X 1" KBG-2 - DV Pressu Gauge Versapr SFMOBM in each Lateral and in mother bore from tbg tail down. with I-Wire surface ~~ Junction Specifications: / Junction ID through LEM Module without diverter: 3.68" RA g TBD LEM run with internal sealbores to allow the use of isolation sleeve across window. Baker Hughes Hookwall Hanger Window in 7-5/8" casing Well Inclination @ Window = ° Baker Hughes Hookwall Hanger W ndow in 7-5/8" casing Well Inclination @ Window = Baker Hughes Hookwall Hanger Window in 7-5/8" casing Well Inclination @ Window RATag~ 6-314" Nb Lateral 4 590' `8 641.'. L-~d~L~ _ ~~: ~~ Swell packer placement TBD Tag TBD -518", 29.7#, L-80, BTC-M @ 5416' Casing Drift: 6.75" Casing ID: 6.875" 6-314" OA lateral RA Tager 4,800' - 8,757` Swell packer placement TBD Solid Ling 6`+14" OBa Lateral 4,933'-8,867' < // ~\ RATag~ L~~d.7 ~~l ~. ~J S acker placement TBD ~~ ' ~?~' TBD -' ° °~_ ~ rn.i ~ --°- _ _ _ _ _ DATE REV. BY COMMENTS ORION D Field 1 rf f ' ~ ~ ~ 3I27I2008 SRK Level 3Multi-Lateral, 4-112" GL Completion V,/~d ~ll llf., ~y f I . WELL: L-205 ML API NO 0 2 : 5 -0 9- API NO: 50-029- 50-029- 50-029- 50-029- 50-029- --c8,977' ~~ ~ 0,7 c Lateral ./ 5,905'- 8,972' ~-,ZOrSL1 eta °~:I RATa OBd Lateral 5,000'- 8,979' i~ ~ PLANT - N~15'00'00" GRID L-PAD N-L (NWE-1) 7 L-1111 ^ ^ N-A (NWE-2) L-51 ^ ^ L-2181 L-114 ^ ^ L-124 L-50 ^ ^ L-1121 ^ L-02 L-121 ^ L-123i L-205 ~ ^ L-122 L-110 ^ L-2111 L-220i ^ ~ L-1151 L-116 ^ ^ L-117 L-109 ^ ^ L-118 L-04i ^ ^ L-250 L-O1 ^ ^ L-200 L-107 ^ ^ L-202 L-03 ^ ^ L-2121 L-221i ^ ^ L-217i L-213i ^ ^ L-203 L-1081 ^ ^ L-2161 L-1051 ^ ^ L-103f L-106 ^ ^ L-2151 L-204 ^ ^ L-201 L-104 ^ ^ L-119f L-214i ^ ^ L-2101 L-102 ^ ^ L-120 ^ L-219f I I I 34 35 L-PAD 'N I I I T12N 1- -- -i- T11 N I 3 I 2 VICINITY MAP N.T.S. '`P~~ 0 0 F o o~ Qa`r q"q b ~49 ~ ~ 09* ooosoovaooao<eo>oo>ooooooooeoo "~o Richard F. Allison ~s 10608 "Tt~S I DNPA- I SURVEYOR'S CERTIFICATE 1 HEREBY CERTIFY THAT I AM PROPERLY REGISTERED AND LICENSED TO PRACTICE LAND SURVEYING IN THE STATE OF ALASKA AND THAT THIS AS-BUILT REPRESENTS A SURVEY MADE BY ME OR UNDER MY DIRECT SUPERVISION AND THAT ALL DIMENSIONS AND OTHER DETAILS ARE CORRECT AS OF MARCH 27, 2008. GRAPHIC SCALE 0 75 150 300 ( IN FEET ) 1 inch = 150 ft LEGEND NOTES AS-BUILT CONDUCTOR 1. DATE OF SURVEY: MARCH 27, 2008. ^ EXISTING CONDUCTOR 2. REFERENCE FIELD BOOK: W008-02 PAGES 70-71. 3. ALASKA STATE PLANE COORDINATES ARE ZONE 4, NAD 27. GEODETIC POSITIONS ARE NAD 27. 4. HORIZONTAL AND VERTICAL CONTROL IS BASED ON L PAD OPERATOR MONUMENTATION. 5. ELEVATIONS ARE BPX M.S.L. DATUM 6. MEAN PAD SCALE FACTOR IS 0.999907827. I (1RATFII WITHIN PRnTR ACTFf) SFC_ 34. T. 17 N.. R. 11 E. UMIAT MERIDIAN. ALASKA WELL A.S.P. PLANT GEODETIC GEODETIC CELLAR SECTION N0. COORDINATES COORDINATES POSITION(DMS) POSITION(D.DD) BOX ELEV. OFFSETS Y= 5,978,082.32 N. 9820.11 70'21'00.329" 70.3500914' 47 6 2,361' FSL ' L-205 X= 583,130.47 E. 5090.16 149'19'30.284" 149.3250789' ' FEL 3,786 r'. xodert "~."..~. TFB CHECKEO:~CS h/'~ DATE3/28/08 wI' DRAWING: WOA L-PAD FRB08 WOL 02-00 SHEET: ~ ~~~D~o JDB No: CONDUCTOR AS-BUILT L41 SCALE: 1 OF 1 0 3 28 08 ISSUED FOR INFORAIA710N iFB JCS _ WELL L-205 1°= 1so' N0. DA1E REVISION BY CHK ~ ~. n~ Gored Hole ~1 /u~ Ba~K by L-205PB1 (P2) Proposal Schlumberger r Client: BP~Exploration Alaska Field: Prudhoe Bay Unit - WOA StrurdurelSlot: Well: L-PADIS-G ~'~~ Plan L-205 (S-G) Borehde: ~~~ Plan L-205PB1 ~e ~ UWIIAPI#: r 50029 Survey Name 1 Date: L-205PB1 (P2) /August 7, 2007 Tort 1 AHD / DDI 1 ERD ratio: 108.353° / 1626.36 ft / 5.284 / 0.361 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Location LaUlong: N 70.35009112, W 149.32507940 Location Grid NIE YIX: N 5978082.200 ftUS, E 583130.400 ftUS Grid Convergence Angle: +0.63561986° Vertical Section Azimuth: 254.050° Vertical Section Origin: ND Reference Dawm: N 0.000 ft, E 0.000 ft Rotary Table TVD Reference Elevation: 76.70 ft relative to MSL Sea Bed I Ground Level Elevation: 48.20 ft relative to MSL - Magnetic Declination: 23.604° Total Field Strength: 57582.613 nT Magnetic Dip: 80.880° Declination Date: January 15, 2008 Magnetic Declination Model: BGGM 2005 North Reference: True North Total Corr Mag North •> True North: +23.604° Measured Vertiral Gravity Directional Comments Inclination Azimuth Sub•Sea TVD TVD NS EW DLS Northing Easting Latitude Longitude Depth Section Tool Face Difficulty ft de d ft ft ft ft ft (de de 1100 ft Index ftUS ftUS RTE U.UU U.UU 175.UU -7(i.7U U. UU U.UU U.UU U.UU --- U.UU U.UU • 59/tfUtfZ.LU • 5tl313U.4U N /U.35UUy11'L W 14y. 3L5U/y4U KOP Bld 1.5/100 300.00 0.00 175.00 223.30 300. 00 0.00 0.00 0.00 HS 0.00 0.00 5978082.20 583130.40 N 70.35009112 W 149. 32507940 G1 301.70 0.03 175.00 225.00 301. 70 0.00 0.00 0.00 HS 1.50 0.00 5978082.20 583130.40 N 70.35009112 W 149. 32507940 Bld 2/100 400.00 1.50 175.00 323.29 399. 99 0.25 -1.30 0.11 HS 1.50 0.29 5978080.90 583130.53 N 70.35008756 W 149. 32507848 500.00 3.50 175.00 423.19 499. 89 1.08 -5.65 0.49 HS 2.00 1.30 5978076.56 583130.96 N 70.35007569 W 149. 32507539 Crv 3/100 550.00 4.50 175.00 473.07 549. 77 1.74 -9.12 0.80 48.95R 2.00 1.62 5978073.09 583131.30 N 70.35006620 W 149. 32507292 600.00 5.60 186.67 522.87 599. 57 3.05 -13.50 0.69 37.33R 3.00 1.91 5978068.71 583131.24 N 70.35005424 W 149. 32507384 Crv 3.5/100 655.61 7.00 195.00 578.14 654. 84 5.84 -19.47 -0.51 88.29R 3.00 2.18 5978062.73 583130.11 N 70.35003793 W 149. 32508351 700.00 7.21 207.46 622.20 698. 90 9.14 -24.56 -2.49 75.92R 3.50 2.37 5978057.62 583128.18 N 70.35002404 W 149. 32509963 800.00 8.75 230.38 721.25 797 .95 20.43 -34.98 -11.25 53.22R 3.50 2.69 5978047.10 583119.54 N 70.34999556 W 149. 32517071 900.00 11.20 244.96 819.75 896 .45 36.99 -43.94 -25.91 38.85R 3.50 2.96 5978037.98 583104.98 N 70.34997107 W 149. 325 SV6 971.88 13.25 251.86 890.00 966. 70 52.11 -49.46 -40.06 32.11R 3.50 3.13 5978032.30 583090.89 N 70.34995600 W 149. 3254 1000.00 14.09 254.01 917.32 994 .02 58.75 -51.41 -46.41 30.02R 3.50 3.19 5978030.29 583084.56 N 70.34995068 W 149. 32545618 1100.00 17.21 259.93 1013.61 1090 .31 85.65 -57.35 -72.69 24.31 R 3.50 3.39 5978024.05 583058.35 N 70.34993445 W 149. 32566950 1200.00 20.45 264.06 1108.25 1184 .95 117.58 -61.75 -104.64 20.40R 3.50 3.57 5978019.30 583026.46 N 70.34992244 W 149. 32592888 1300.00 23.76 267.09 1200.89 1277 .59 154.42 -64.58 -142.15 17.60R 3.50 3.73 5978016.06 582988.99 N 70.34991470 W 149. 32623335 1400.00 27.12 269.41 1291.18 1367 .88 196.04 -65.84 -185.07 15.50R 3.50 3.88 5978014.32 582946.09 N 70.34991125 W 149. 32658178 1500.00 30.50 271.25 1378.79 1455 .49 242.27 -65.52 -233.25 13.89R 3.50 4.01 5978014.10 582897.92 N 70.34991212 W 149. 32697286 End Crv 1545.07 32.04 271.96 1417.31 1494 .01 264.57 -64.86 -256.63 --- 3.50 4.06 5978014.50 582874.53 N 70.34991392 W 149. 32716266 SV5 1689.79 32.04 271.96 1540.00 1616. 70 337.62 -62.23 -333.35 --- 0.00 4.17 5978016.28 582797.79 N 70.34992110 W 149. 32778548 SV4 1843.14 32.04 271.96 1670.00 1746. 70 415.02 -59.44 -414.65 --- 0.00 4.26 5978018.17 582716.48 N 70.34992870 W 149. 32844542 Base Perm 1878.53 32.04 271.96 1700.00 1776. 70 432.88 -58.80 -433.41 --- 0.00 4.28 5978018.60 582697.71 N 70.34993045 W 149. 32859771 WeIlDesign Ver SP 2.1 Bld(doc40x_100) S-G\Plan L-205 (S-G)\Plan L-205PB1\L-205PB1 (P2) Generated 8!7/2007 4:19 PM Page 1 of 2 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical NS EW Gravity DLS Directional Northing Easting Latitude Longitude Depth fiction Tool Face Difficulty ft de de ft ft ft) ft ft (de de 1100 ft Index ftUS ftUS SV3 113if.;f1 3L.U4 L/7.y0 LUUb.UU ZUif7. /U b14.4/ -bY.YO -OZ4.74 --- V.VV 4.44 OJ/6VLJ. U3 JOLJVO.J4 IV /V.J9yyYOLO vv I9y.JJVIYVVv SV2 2444.75 32.04 271.96 2180.00 2256. 70 718. 67 -48.51 -733.58 --- 0.00 4.51 5978025. 56 582397.47 N 70. 34995851 W 149.33103443 SV1 2798.64 32.04 271.96 2480.00 2556. 70 897.28 -42.07 -921.18 --- 0.00 4.61 5978029. 91 582209.83 N 70. 34997602 W 149.33255738 10-3/4" Csg Pt 3016.87 32.04 271.96 2665.00 2741. 70 1007.43 -38.11 -1036.87 --- 0.00 4.66 5978032. 60 582094.11 N 70. 34998682 W 149.33349654 Crv 5/100 3022.77 32.04 271.96 2670.00 2746 .70 1010. 40 -38.00 -1040.00 116.55E 0.00 4.66 5978032 .67 582090.98 N 70. 34998711 W 149.33352192 3100.00 30.48 265.14 2736.03 2812 .73 1049. 13 -38.96 -1080.00 110.72E 5.00 4.72 5978031 .27 582051.00 N 70. 34998448 W 149.33384666 3200.00 29.06 255.48 2822.88 2899 .58 1098. 33 X7.20 -1128.82 102.32E 5.00 4.79 5978022 .49 582002.28 N 70. 34996195 W 149.33424292 3300.00 28.38 245.16 2910.64 2987 .34 1146. 12 -63.28 -1173.92 93.27E 5.00 4.85 5978005 .91 581957.36 N 70. 34991800 W 149.33460905 3400.00 28.50 234.65 2998.63 3075 .33 1192. 13 -87.08 -1214.97 84.02E 5.00 4.90 5977981 .66 581916.58 N 70. 34985297 W 149.33494225 3500.00 29.41 224.48 3086.18 3162 .88 1236. 01 -118.41 -1251.66 75.12E 5.00 4.96 5977949 .92 581880.25 N 70. 34976734 W 149.33523999 3600.00 31.03 215.08 3172.64 3249 .34 1277. 43 -157.05 -1283.69 66.99E 5.00 5.01 5977910 .94 581848.65 N 70. 34966178 W 149.3355 3700.00 33.28 206.67 3257.34 3334 .04 1316. 07 -202.68 -1310.84 59.86E 5.00 5.06 5977865 .01 581822.01 N 70. 34953709 W 149.335 3731.84 34.10 204.22 3283.84 3360 .54 1327. 75 -218.63 -1318.42 --- 5.00 5.07 5977848 .98 581814.61 N 70. 34949352 W 149.33578185 Crv 5/100 3735.12 34.10 204.22 3286.55 3363 .25 1328. 93 -220.31 -1319.18 LS 0.00 5.07 5977847 .29 581813.87 N 70. 34948894 W 149.33578797 3800.00 30.86 204.22 3341.27 3417 .97 1351. 40 -252.08 -1333.47 LS 5.00 5.10 5977815 .37 581799.94 N 70. 34940215 W 149.33590391 3900.00 25.86 204.22 3429.25 3505 .95 1382. 03 -295.38 -1352.94 LS 5.00 5.14 5977771 .86 581780.94 N 70. 34928384 W 149.33606195 4000.00 20.86 204.22 3521.02 3597 .72 1407. 59 -331.52 -1369.20 LS 5.00 5.18 5977735 .54 581765.09 N 70. 34918509 W 149.33619387 4100.00 15.86 204.22 3615.91 3692 .61 1427. 90 -360.23 -1382.11 LS 5.00 5.21 5977706 .69 581752.50 N 70. 34910664 W 149.33629865 4200.00 10.86 204.22 3713.17 3789 .87 1442. 79 -381.30 -1391.59 LS 5.00 5.24 5977685 .53 581743.26 N 70. 34904910 W 149.33637552 4300.00 5.86 204.22 3812.08 3888 .78 1452. 16 -394.55 -1397.55 LS 5.00 5.26 5977672 .21 581737.45 N 70. 34901290 W 149.33642387 4400.00 0.86 204.22 3911.87 3988 .57 1455. 94 -399.88 -1399.95 LS 5.00 5.29 5977666 .85 581735.11 N 70. 34899832 W 149.33644335 End Crv 4417.13 0.00 0.00 3929.00 4005 .70 1456. 02 -400.00 -1400.00 -- 5.00 5.29 5977666 .73 581735.05 N 70. 34899800 W 149.33644378 L-205PB1 Tgt 4913.13 0.00 0.00 4425.00 4501 .70 1456. 02 -400.00 -1400.00 -- 0.00 5.28 5977666 .73 581735.05 N 70. 34899800 W 149.33644378 WeIlDesign Ver SP 2.1 Bid( doc40x_100) S-G\Plan L-205 (S-G)\Plan L-205P81\L-205PB1 (P2) Generated 8/7/2007 4:19 PM Page 2 of 2 by Schlumberger WELL FIELD STRUCTURE L-205PB1 (P2) Prudhoe Bay Unit - WOA L-PAD MagnatK PammeRrs Surlaca Location NAD2] Alaska State Planes, Zone 04, US Feat Miscellaneous Motlel BGGM 2005 Dip: 80 Bb0' Date. nuary 15. 2006 La L. N]0210.326 NoRbing 59)808220 RU8 Gritl Cpnv:+063561966° 61of. 5-G NO Re F. Rotary Table (]6 ]Oh above MSL1 Mag Dac: .23604' FS' SI582fi nT Lon. W10.919 JU.286 Easling: 583130 d0 RU5 Scale Fact: 099990]8503 Plan: L-205PB11P2) Srvy Date: August 0>, 21p> 0 750 1500 2250 0 750 1500 O C 2250 m m U ?~ F-' 3000 3750 4500 -..-..~..~..-..-..~.-..-..-..-..-..~ .- - -Y•~..-..-..-..-..-..-..~..-..-..N.-..~..~..~..-..-..-..~..~..-. .t.-..-..-. ase Pefm -..-..-..-..-..-...j..-..-..-..-..-..~..-..-.. .V3. rj.~..-..-..-..-..-..-..~..-..-..-j.-..~..-..-..-..-..-..~..~..-...1.-..-..-.. -..-..~..~..-..-..y..-..-..-..-..-..~..-..-..-..-. -..-~SV1 -..-..-..-..~..-..-. ->..-..~..-..-..~..-..-..~..-..-. ~~.-..-..-.. Entl Crv L-205PB1 Tgt /LAOS j-5/8" Csg Pt g1 .....................................i...........................................~.................... L 205PB1..~P2 ........................................ c.............. OSPBi Tg~ 0 750 1500 2250 3000 3750 4500 0 750 1500 2250 Vertical Section (ft) Azim = 254.05°, Scale = 1(in):600(ft) Origin = 0 N/-S, 0 E/-V by Schlumberger WELL L-205PB1 (P2) FIELD Prudhoe Bay Unit - WOA STRUCTURE L-PAD Magne4c Parameters Surta<e Lewlwn NA02] Alaska SUIe Plates. Zone 04, US Fee! MiscelWneous Model'. BGGM 20G5 Pp: 80.680' Dale nuary t8, 2008 Lac. N]0210320 NoeMing: 59]8082.20 flU6 Gritl CMV. +0.561986° S-G NO ReI'. RaMry Table l]6.]oftabove M8L1 Mag Dec: +23604' F8'. 5]5826nT Lon: W14919 J0286 Easing. 58313040flU6 6cale Fact. 099990I850J Plan L-205PBi IP21 Sny Dale: August 0], 200] 200 0 n n n Z °o -200 N C II N ~ -400 v v v -600 -1600 -1400 -1200 -1000 -800 -600 -400 -200 0 200 0 -200 -400 -600 1600 -1400 -1200 -1000 -800 -600 -400 -200 0 c« W Scale=1(in):200(ft) E »> BP Alaska Anticollision Report Company: BP Amoco llate: 8/7/2007 'l'ime: 16:27:08 Page: 1 Field: Prudhoe Bay - Reference Site: PB L Pad Co-~rcdinate(NE) Reference: Well: Plan L-205 (S-G), True North Reference Well: Plan L-205 (S-G) Vertical (TVD) Reference: L-51 76.4 Reference W'ellpath: - - - Plan L-205PB1 - °- - Db: Oracle -- GLOBAL SCAN APPLIED: All wellpaths within 200'+ 100/1000 of reference. -There are =ItiZl~Hoeells in thisRhiiid~pal Plan 8~ PLANNED PROGRAM ~i Interpolation Method: MD Interval: 5.00 ft Error Model: ISCWSA Ellipse Depth Range: 28.20 to 4913.13 ft Scan Method: Trav Cylinder North I Maximum Radius: L- __ _ _ 688.49 ft _ - - _ _.. - - __ ~ Error Surface: Ellipse + Casing I~ Survey Program for Definitive Wellpath ~ Date: 1/19/2007 Validated: No Version: 4 ' Planned From To Survey Taolcode Tool Name ft ft 28.20 800.00 Planned: Plan #2 V1 GYD-GC-SS Gyrodata gyro single shots 800.00 2200.00 Planned: Plan #2 V1 MWD MWD -Standard 1000.00 2960.00 Planned: Plan #2 V1 MWD+IFR+MS MWD +IFR + Multi Station 2960.00 4913.13 Planned: Plan #2 V1 MWD+IFR+MS MWD +IFR + Multi Station Casing Points &1D TVll Qiumcter Hole Size Name ft ft 'I - in in =- - - - 3004.72 2731.40 - - 9.625 12.250 9 5/8" - 4913.13 4501.70 7.000 8.750 7" ii Summary -- ~, <--~=----~-- - - Offset W'el-path -- - > -- Reference Offset Ctr-Ctr No-Co Allowable ~i~ Site WeII Wellpath ~ MD MD llistance Area Deviation Warning I --; -- ~ _ - -- - - n -- ft _ ft n ft , EX WKUPST-01 - - WKUPST-01 _ -- -_ Plan RW#1 V2 Plan: RW# 4192.11 , 7745.00 323.26 _ 179.78 143.48 Pass: Major Risk PB L Pad L-01 L-01 V14 518.24 520.00 132.66 8.80 123.86 Pass: Major Risk ~~ PB L Pad L-02 L-02 V1 399.63 410.00 180.18 7.20 172.99 Pass: Major Risk PB L Pad L-02 L-02A V5 400.39 405.00 180.19 7.32 172.88 Pass: Major Risk PB L Pad L-02 L-02APB1 V2 400.39 405.00 180.19 7.32 172.88 Pass: Major Risk ', PB L Pad L-02 L-02PB1 V21 399.63 410.00 180.18 7.31 172.88 Pass: Major Risk PB L Pad L-03 L-03 V5 451.18 455.00 160.33 8.50 151.82 Pass: Major Risk PB L Pad L-04 L-04 V5 562.91 565.00 77.71 9.82 67.89 Pass: Major Risk PB L Pad L-101 L-101 V4 385.51 390.00 201.65 6.90 194.74 Pass: Major Risk PB L Pad L-105 L-105 V4 406.59 410.00 222.60 7.39 215.21 Pass: Major Risk PB L Pad L-106 L-106 V14 523.27 530.00 234.70 8.72 225.98 Pass: Major Risk I PB L Pad L-107 L-107 V14 169.09 170.00 146.37 3.78 142.59 Pass: Major Risk ii PB L Pad L-108 L-108 V18 557.90 565.00 203.02 10.21 192.80 Pass: Major Risk PB L Pad L-109 L-109 V12 583.27 585.00 62.03 11.68 50.35 Pass: Major Risk PB L Pad L-110 L-110 V11 618.94 620.00 15.21 10.82 4.38 Pass: Major Risk PB L Pad L-111 L-111 V24 295.19 295.00 91.68 5.29 86.39 Pass: Major Risk PB L Pad L-112 L-112 V8 550.98 570.00 186.79 11.10 175.69 Pass: Major Risk ~, PB L Pad L-114 L-114 V15 921.13 915.00 55.43 14.21 41.22 Pass: Major Risk I PB L Pad L-114 L-114A V4 921.13 915.00 55.43 14.21 41.22 Pass: Major Risk PB L Pad L-115 L-115 V7 488.96 500.00 181.42 8.38 173.04 Pass: Major Risk PB L Pad L-116 L-116 V10 489.50 490.00 46.06 7.53 38.52 Pass: Major Risk PB L Pad L-117 L-117 V11 337.47 340.00 186.70 5.45 181.25 Pass: Major Risk PB L Pad L-118 L-118 V9 189.49 190.00 191.26 3.53 187.73 Pass: Major Risk PB L Pad L-121 L-121 V14 289.94 290.00 16.17 5.28 10.89 Pass: Major Risk PB L Pad L-121 L-121A V1 289.94 290.00 16.17 5.28 10.89 Pass: Major Risk PB L Pad L-122 L-122 VS 347.20 350.00 180.49 5.79 174.71 Pass: Major Risk PB L Pad L-123 L-123 V5 170.40 170.00 181.21 3.22 177.99 Pass: Major Risk PB L Pad L-123 L-123P61 V3 170.40 170.00 181.21 3.22 177.99 Pass: Major Risk PB L Pad L-123 Plan L-123L1 V1 Plan: 170.40 170.00 181.21 3.22 177.99 Pass: Major Risk PB L Pad L-124 L-124 V13 284.59 285.00 190.75 4.83 185.92 Pass: Major Risk PB L Pad L-124 L-124P61 V5 284.59 285.00 190.75 4.83 185.92 Pass: Major Risk PB L Pad L-124 L-124P62 V4 284.59 285.00 190.75 4.83 185.92 Pass: Major Risk PB L Pad L-200 L-200 V7 228.79 230.00 223.27 4.07 219.20 Pass: Major Risk PB L Pad L-200 L-200L1 V3 228.79 230.00 223.27 4.07 219.20 Pass: Major Risk PB L Pad L-200 L-200L2 V6 228.79 230.00 223.27 4.07 219.20 Pass: Major Risk PB L Pad L-202 L-202 V5 341.88 345.00 232.10 5.85 226.25 Pass: Major Risk PB L Pad L-202 L-202L1 V7 341.88 345.00 232.10 5.85 226.25 Pass: Major Risk PB L Pad L-202 L-202L2 V6 341.88 345.00 232.10 5.85 226.25 Pass: Major Risk PB L Pad L-202 L-202L3 V6 341.88 345.00 232.10 5.85 226.25 Pass: Major Risk PB L Pad L-204 L-204 V8 347.21 350.00 252.86 6.12 246.73 Pass: Major Risk PB L Pad L-204 L-204L1 V5 347.21 350.00 252.86 6.12 246.73 Pass: Major Risk BP Alaska i Anticollision Report Company: BP Amoco Dute: 8/7/2007 'l'ime: 16:27:08 Page: 2 Field: Prudhoe Bay Reference Site: PB L Pad Co-ordinate(NE) Reference: Well: Plan L-205 (S-G ), True North Refcrence Wcll: Plan L-205 (S-G) Vertical (TVD) Reference: L-51 76.4 Reference Wellpath: Plan L-205P61 Db: Oracle Summary <~~-~~-~ Offset Wellpath ------------> Reference Offset Ctr-Ctr No-Go Allo~~~able Site Well ~~'ellpath MD MD Distance Areu Deviation Warning ft ft ft ft ft i PB L Pad L-204 L-204L2 V7 347.21 350.00 252.86 6.12 246.73 Pass: Major Risk ~', PB L Pad L-204 L-204L3 V4 Plan: Plan 347.21 350.00 252.86 6.12 246.73 Pass: Major Risk PB L Pad L-204 L-204L4 V5 347.21 350.00 252.86 6.12 246.73 Pass: Major Risk PB L Pad L-211 L-211 V6 323.24 325.00 182.25 6.12 176.13 Pass: Major Risk PB L Pad L-211 L-211 P61 V6 323.24 325.00 182.25 6.12 176.13 Pass: Major Risk ', PB L Pad L-212 L-212 V11 322.40 325.00 242.09 5.49 236.60 Pass: Major Risk PB L Pad L-212 L-212P61 V9 322.40 325.00 242.09 5.49 236.60 Pass: Major Risk ~~ PB L Pad ~ L-212 L-212P62 V2 322.40 325.00 242.09 5.49 236.60 Pass: Major Risk PB L Pad L-213 L-213 V8 382.63 385.00 190.21 6.30 183.91 Pass: Major Risk PB L Pad L-218 L-218 V4 586.18 600.00 195.69 10.15 185.53 Pass: Major Risk i PB L Pad L-250 L-250 V4 351.45 355.00 213.44 6.54 206.90 Pass: Major Risk i PB L Pad L-250 L-250L1 V14 351.45 355.00 213.44 6.54 206.90 Pass: Major Risk II PB L Pad L-250 L-250L2 V10 351.45 355.00 213.44 6.54 206.90 Pass: Major Risk PB L Pad L-250 L-250PB1 V3 351.45 355.00 213.44 6.60 206.84 Pass: Major Risk PB L Pad L-50 L-50 V1 979.38 975.00 31.24 15.13 16.11 Pass: Major Risk PB L Pad L-50 L-50P61 V4 979.38 975.00 31.24 15.13 16.11 Pass: Major Risk ', PB L Pad L-51 L-51 V6 1220.16 1205.00 67.15 20.81 46.34 Pass: Major Risk PB L Pad NWE1-01 L-100 V2 1902.81 1810.00 154.48 42.38 112.10 Pass: Major Risk PB L Pad NWE1-01 NWE1-01 V5 1902.81 1810.00 154.48 42.38 112.10 Pass: Major Risk PB L Pad Plan L-205 (S-G) Plan L-205 OBb V2 Plan 3045.00 3045.00 0.15 74.59 -74.44 FAIL: Major Risk PB L Pad Plan L-52 (S-E) Plan L-52 V1 Plan: Pla 499.66 500.00 29.77 9.53 20.25 Pass: Major Risk • • FieldPrudhoe Bay Site PB L Pad We11:Plan L-205 (S-G) WellpathPlan L-205PB1 313 300 200 100 0 2 100 200 300 313 0 Travelling Cylinder Azimuth (TFO+AZI) [deg] vs Centre t i 0 ~b ~~ L-205 (P21 Pro Report Date: December 11, 2007 Client: BP Exploration Alaska Field: Prudhoe Bay Unit - WOA Stn,cturelSlot: L-PAD/S-G Well: Plan L-205 (S-G) bili#y Borehole: $i Plan L-205 OBb ~e~ UWI/API#: 50029 Survey Name 1 Date: L-205 (P2) /December 6, 2007 Tort /AHD 1 DDI 1 ERD ratio: 170.449° 16207.92 ft ! 6.332 11.403 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Location LaNLong: N 70.35009112, W 149.32507940 Location Grid NIE YIX: N 5978082.200 ftUS, E 583130.400 ftUS Grid Convergence Angle: +0.63561986° Say Schlumberger Survey 1 DLS Computation Method: Minimum Curvature / Lubinski Vertical Section Azimuth: 180.00° Vertical Section Origin: TVD Reference Datum: N 0.000 ft, E 0.000 ft Rotary Table TVD Reference Elevation: 76.70 ft relative to MSL Sea Bed 1 Ground Level Elevation: 48.20 ft relative to MSL Magnetic Declination: 23.508° Total Field Strength: 57623.801 nT Magnetic Dip: 80.871 ° Declination Date: May 05, 2007 Magnetic Declination Model: BGGM 2007 North Reference: True North Total Corr Mag North -> True North: +23.508° J Comments Measured Inclination Azimuth SutrSea TVD TVD Vertical NS EW Mag 1 Grav DLS Directional Northing Easting Latitude Longitude Depth Section Tool Face Difficulty ft de de ft ft ft ft ft (d de 1100 ft Index ftUS ftUS KpF'GN4./5/1UU 3U3U.UU Jl.tf/ Z/1.J0 Lb/b.IJ L/DL .iSJ J/.OJ End Crv 3089.68 29.78 275.09 2727.38 2804 .08 36.20 UG4 3109.98 29.78 275.09 2745.00 2821. 70 35.31 UG4A 3150.31 29.78 275.09 2780.00 2856. 70 33.53 UG3 3507.49 29.78 275.09 3090.00 3166. 70 17.80 Crv 4.75/100 3651.42 29.78 275.09 3214.92 3291 .62 11.46 3700.00 29.52 270.45 3257.15 3333 .85 10.30 3800.00 29.50 260.80 3344.22 3420 .92 14.04 3900.00 30.16 251.34 3431.02 3507 .72 26.02 4000.00 31.47 242.42 3516.95 3593 .65 46.16 UG1 4009.45 31.63 241.61 3525.00 3601. 70 48.48 4100.00 33.35 234.27 3601.41 3678 .11 74.32 4200.00 35.71 226.98 3683.82 3760 .52 110.30 Ma 4276.33 37.77 222.00 3745.00 3821. 70 142.88 4300.00 38.45 220.55 3763.62 3840 .32 153.86 Mb 1 4333.92 39.46 218.55 3790.00 3866. 70 170.30 4400.00 41.51 214.88 3840.27 3916 .97 204.69 Mb2 4406.33 41.71 214.55 3845.00 3921. 70 208.15 Mc 4495.46 44.65 210.10 3910.00 3986. 70 259.69 4500.00 44.81 209.89 3913.23 3989 .93 262.46 Na 4567.30 47.14 206.85 3960.00 4036. 70 305.04 Nb 4597.00 48.20 205.58 3980.00 4056. 70 324.74 4600.00 48.30 205.45 3982.00 4058 .70 326.76 -J/.oy -IU4J.OL -36.20 -1074.35 -35.31 -1084.39 -33.53 -1104.34 -17.80 -1281.06 -11.46 -1352.27 -10.30 -1376.26 -14.04 -1425.23 -26.02 -1473.36 -46.16 -1520.33 -48.48 -1524.69 -74.32 -1565.80 -110.30 -1609.48 -142.88 -1641.41 -153.86 -1651.05 -170.30 -1664.62 -204.69 -1690.24 -208.15 -1692.63 -259.69 -1725.17 -262.46 -1726.77 -305.04 -1749.73 -324.74 -1759.42 -326.76 -1760.39 IJy.IJR J.VV Y.V! JDI OVJG.IY --- 4.75 4.71 5978034.09 --- 0.00 4.71 5978034.87 --- 0.00 4.72 5978036.42 --- 0.00 4.79 5978050.19 98.52E 0.00 94.49E 4.75 86.09E 4.75 77.87E 4.75 70.21E 4.75 69.52E 4.75 63.32E 4.75 57.32E 4.75 53.32E 4.75 52.18E 4.75 50.62E 4.75 47.84E 4.75 47.59E 4.75 44.34E 4.75 44.19E 4.75 4.81 5978055.74 4.84 5978056.64 4.90 5978052.35 4.96 5978039.84 5.01 5978019.18 5.01 5978016.81 5.06 5977990.53 5.10 5977954.07 5.14 5977921.14 5.15 5977910.05 5.16 5977893.46 5.19 5977858.79 5.20 5977855.31 5.24 5977803.41 5.24 5977800.63 42.08E 4.75 41.22E 4.75 41.14E 4.75 5.27 5977757.80 5.28 5977738.00 5.28 5977735.97 JVGVUI.IV - /~I vv Imo'. V VGJV 582056.62 N 70.34999201 W 149.33380075 582046.57 N 70.34999445 W 149.33388227 582026.60 N 70.34999929 W 149.33404424 581849.74 N 70.35004219 W 149.33547883 581778.47 N 70.35005948 W 149.33605692 581754.46 N 70.35006265 W 149.33625168 581705.55 N 70.35005240 W 149.33664919 581657.56 N 70.35001964 W 149.33703989 581610.82 N 70.34996459 W 149.33742111 581606.48 N 70.34995825 W 149.337 581565.67 N 70.34988764 W 149.337 581522.40 N 70.34978932 W 149.33814470 581490.83 N 70.34970030 W 149.33840390 581481.31 N 70.34967030 W 149.33848210 581467.93 N 70.34962537 W 149.33859224 581442.70 N 70.34953139 W 149.33880010 581440.34 N 70.34952196 W 149.33881952 581408.38 N 70.34938113 W 149.33908355 581406.81 N 70.34937356 W 149.33909652 581384.33 N 70.34925722 W 149.33928284 581374.85 N 70.34920340 W 149.33936150 581373.91 N 70.34919788 W 149.33936933 WeIlDesign Ver SP 2.1 Bld( doc40x_100) S-G\Plan L-205 (S-G)\Plan L-205 OBb\L-205 (P2) Generated 12/11/2007 10:23 AM Page 1 of 2 Comments Measured Inclination Azimuth Sutrliea ND ND Vertical NS EW Mag I Grav DLS Directional Northing Easting Latitude Longitude Depth Section Tool Face Difficulty k de de (ft k (ft) k (k de - (de 1100 k Index (kUS ftUS c on cn~~~ee o~ cn~oao ~e nl ~n oeoao~~~ In/aeo a~aeauo~ NC 4OJD.U1 4JA/ LU4.UL 4VVA.VV 9V01./U 3.7 V./J -JaV./J -I//LYO Yv.tvL Y./v ./../v JJ///,,.V/ ./v,./~./.,~ .. .... v-r..,..w. .. ,-.v.vvv-.vvv~ Ne 4650.52 50.13 203.40 4015.00 4091. 70 361.59 -361.59 -1776.19 39.80E 4.75 5.30 5977700.97 581358.49 N 70.34910272 W 149.33949758 4700.00 51.95 201.49 4046.11 4122. 81 397.15 -397.15 -1790.87 38.59E 4.75 5.32 5977665.25 581344.21 N 70. 34900557 W 149.33961665 4800.00 55.72 197.90 4105.12 4181. 82 473.14 -473.14 -1818.01 36.48E 4.75 5.37 5977588.96 581317.92 N 70. 34879794 W 149.33983678 OA 4817.69 56.40 197.30 4115.00 4191. 70 487.13 -487.13 -1822.45 36.14E 4.75 5.37 5977574.93 581313.64 N 70.34875973 W 149.33987277 4900.00 59.58 194.63 4158.63 4235. 33 554.22 -554.22 -1841.61 34.73E 4.75 5.41 5977507.63 581295.22 N 70. 34857641 W 149.34002822 OBa 4932.96 60.87 193.61 4175.00 4251. 70 581.97 -581.97 -1848.59 34.22E 4.75 5.42 5977479.82 581288.55 N 70.34850061 W 149.34008480 5000.00 63.52 191.61 4206.27 4282. 97 639.83 -639.83 -1861.52 33.29E 4.75 5.45 5977421.82 581276.27 N 70. 34834253 W 149.34018963 OBb 5019.86 64.31 191.03 4215.00 4291. 70 657.32 -657.32 -1865.02 33.03E 4.75 5.46 5977404.29 581272.96 N 70. 34829474 W 149.34021802 5100.00 67.52 188.79 4247.70 4324. 40 729.38 -729.38 -1877.59 32.12E 4.75 5.49 5977332.11 581261.19 N 70. 34809788 W 149.34031993 OBc 5147.13 69.42 187.52 4265.00 4341. 70 772.78 -772.78 -1883.81 31.65E 4.75 5.51 5977288.65 581255.46 N 70. 34797932 W 149.3403 5200.00 71.56. 186.13 4282.66 4359. 36 822.25 -822.25 -1889.72 31.19E 4.75 5.53 5977239.11 581250.09 N 70. 34784414 W 149.3404 Oed 5296.46 75.50 183.68 4310.00 4386. 70 914.39 -914.39 -1897.61 30.49E 4.75 5.57 5977146.90 581243.23 N 70. 34759242 W 149.34048204 5300.00 75.64 183.59 4310.88 4387. 58 917.82 -917.82 -1897.83 30.47E 4.75 5.57 5977143.48 581243.05 N 70. 34758308 W 149.34048379 5400.00 79.75 181.15 4332.19 4408. 89 1015.41 -1015.41 -1901.85 29.95E 4.75 5.61 5977045.86 581240.11 N 70. 34731646 W 149.34051624 End Crv 5406.10 80.00 181.00 4333.26 4409. 96 1021.41 -1021.41 -1901.96 --- 4.75 5.61 5977039.85 581240.06 N 70. 34730005 W 149.34051714 L-205 7-5/8" Csg Pt Tgt 5416.10 80.00 181.00 4335.00 4411. 70 1031.26 -1031.26 -1902.14 --- 0.00 5.61 5977030.00 581240.00 N 70. 34727315 W 149.34051852 5416.16 80.00 181.00 4335.01 4411. 71 1031.32 -1031.32 -1902.14 - 0.00 5.61 5977029.95 581240.00 N 70. 34727300 W 149.34051853 Crv 12/100 5426.10 80.00 181.00 4336.74 4413. 44 1041.11 -1041.11 -1902.31 43.86E 0.00 5.61 5977020.15 581239.94 N 70. 34724625 W 149.34051989 5500.00 86.44 174.86 4345.47 4422. 17 1114.36 -1114.36 -1899.63 43.13E 12.00 5.66 5976946.94 581243.43 N 70. 34704612 W 149.34049802 90° Pt 5540.60 90.00 171.53 4346.73 4423.43 1154.65 -1154.65 -1894.82 43.03E 12.00 5.69 5976906.72 581248.68 N 70. 34693608 W 149.34045890 5600.00 95.20 166.65 4344.03 4420. 73 1212.87 -1212.87 -1883.60 43.25E 12.00 5.72 5976848.62 581260.55 N 70. 34677701 W 149.34036772 End Crv 5628.45 97.68 164.29 4340.84 4417. 54 1240.24 -1240.24 -1876.51 --- 12.00 5.74 5976821.34 581267.94 N 70. 34670226 W 149.34031011 Crv 8/100 5662.29 97.68 164.29 4336.31 4413. 01 1272.52 -1272.52 -1867.43 65.77R 0.00 5.75 5976789.17 581277.37 N 70. 34661409 W 149.34023636 L-205 OBb Tgt 2 5671.91 98.00 165.00 4335.00 4411. 70 1281.71 -1281.71 -1864.91 48.56R 8.00 5.75 5976780.00 581280.00 N 70. 34658896 W 149.34021585 5700.00 99.48 166.71 4330.73 4407. 43 1308.63 -1308.63 -1858.12 48.82R 8.00 5.76 5976753.16 581287.08 N 70. 34651543 W 149.34016072 End Crv 5719.67 100.52 167.91 4327.32 4404. 02 1327.52 -1327.52 -1853.87 -- 8.00 5.77 5976734.32 581291.55 N 70. 34646382 W 149.34012615 Crv 8/100 6268.97 100.52 167.91 4227.05 4303. 75 1855.62 -1855.62 -1740.77 176.71 L 0.00 5.90 5976207.56 581410.49 N 70. 34502118 W 149.33 6300.00 98.04 167.77 4222.05 4298. 75 1885.56 -1885.56 -1734.32 176.73E 8.00 5.91 5976177.70 581417.27 N 70. 9 34493940 W 149.339 6400.00 90.05 167.31 4215.00 4291. 70 1982.88 -1982.88 -1712.81 176.76E 8.00 5.95 5976080.63 581439.85 N 70. 34467354 W 149.33898 6 L-205 OBb Tgt 3 6400.64 90.00 167.31 4215.00 4291. 70 1983.51 -1983.51 -1712.67 142.71 L 8.00 5.95 5976080.00 581440.00 N 70. 34467182 W 149.33897891 End Crv 6416.18 89.01 166.56 4215.13 4291. 83 1998.64 -1998.64 -1709.16 --- 8.00 5.96 5976064.91 581443.68 N 70 .34463049 W 149.33895039 Crv 4/100 6945.63 89.01 166.56 4224.27 4300. 97 2513.51 -2513.51 -1586.09 118.16R 0.00 6.05 5975551.49 581572.44 N 70 .34322399 W 149.33795073 L-205 OBb Tgt 4 6978.03 88.40 167.70 4225.00 4301. 70 2545.08 -2545.08 -1578.88 164.52R 4.00 6.06 5975520.00 581580.00 N 70 .34313773 W 149.33789213 7000.00 87.55 167.93 4225.78 4302 .48 2566.55 -2566.55 -1574.24 164.51 R 4.00 6.06 5975498.59 581584.87 N 70 .34307909 W 149.33785448 End Crv 7004.61 87.38 167.98 4225.98 4302 .68 2571.05 -2571.05 -1573.28 -- 4.00 6.06 5975494.10 581585.88 N 70 .34306679 W 149.33784668 Crv 4/100 7935.32 87.38 167.98 4268.60 4345 .30 3480.42 -3480.42 -1379.73 3.45R 0.00 6.20 5974587.02 581789.50 N 70 .34058259 W 149.33627459 L-205 OBb Tgt 5 7983.53 89.30 168.10 4270.00 4346 .70 3527.56 -3527.56 -1369.74 167.OOR 4.00 6.21 5974540.00 581800.00 N 70 .34045382 W 149.33619352 End Crv 7987.77 89.13 168.14 4270.06 4346 .76 3531.70 -3531.70 -1368.87 --- 4.00 6.21 5974535.86 581800.92 N 70 .34044248 W 149.33618643 TD / 4-1/2" Lnr 8977.28 89.13 168.14 4285.00 4361 .70 4499.97 -4499.97 -1165.50 --- 0.00 6.34 5973570.00 582015.00 N 70 .33779735 W 149.33453503 WeIlDesign Ver SP 2.1 Bld( doc40x_100) S-G\Plan L-205 (S-G)\Plan L-205 OBb\L-205 (P2) Generated 12/11/2007 10:23 AM Page 2 of 2 by Schlumberger WELL FIELD STRUCTURE L-205 (P2) Prudhoe Bay Unit - WOA L-PAD rre0c Pammelers 6edace Location NND2] Plaska SUte Planes. Zone Oa, US Feet n e eo Model: BGGM 200] Dip: 608]1' Date: May O5, 200] Lat: N]0210.326 NoMirg. 59]6062.20 RUS Grq GOnv: sO 63561986' S~G ND Ref. RoNry Table 1]6.]011 above MSL) Slo Mag Dec: +23506' FS'. 5]623.8 nT W149 19 30 266 Eas4ng: 583130.40 XUS 99990]8503 Plan. L2051P21 Srvy Dale: December 11.200] 0 600 1200 1800 2400 3000 3600 4200 4800 2400 3000 O O C 3600 a~ Ln 4200 4800 -205P81 (P3) 10-8/4" Csg P[ .LCV.6.L56'1DA-. ..-..-..-..-..-..-..-..i..-..-..-..-..-..-..-..-..i...-..-..-..-..-..-..-..-.:-..-..-..-..-..-..-..-..-a-..-..-..-..-..-..-..-..-i.-..-..-..-..-..-..-..-..s..-..-..-..-..-..-..-..-..i..-..-..-..-..-..-..-..-..i.. ._.._.._.._ ~ . ..-..-..-..-..- .f. -..-..-..-..-..-..-..- -..-..-..-..-..-..-..- - .-..-..-..-..-..-..-.. ..-..-..-..-..-..-..-. -:.-..-..-..-..-..-..-..-. - -..-..-..-..-..-..-..- .a. -..-..-..-..-..-..-..- End Crv .-..-..-..-..-. G -..-..-..-..-..- -..-..-..-..-..-..-..- -..-..-..-..-..-..-..- .-..-..-..-..-..-..-..- -..-..-..-..-..-..-..-. - -..-..-..-..-..-..-..-. - -..-..-..-..-..-..-..- -..-..-..-..-..-..-..- - Crv 4.75H 00 ..-..-...-..-...h G .-..-..-..-..-..-..} .-..-..-..-..-. .. .. .-..-..r..-..-..-..-..-..-..-..- .r..-..-..-..-..-..-..-.. .i- .-..-..-..-..-..-..-..-.i-..-..-..-..-..-..-..-..-i.-..-..-..-..-..-..-..-..r.. ..-..-..-..-..-..-..- .+. -..-..-..-..-..-..-.. ..i. .-..-..-..-..-. -..- lif.._ _..-..t..-..-..-..-..-..-..-..- -..-..-..-..-..-..-.. .-..-..-..-..-..-..-.. ..-..-..-..-..-..-..-.. -..-..-..-..-..-..-..-. ..-..-..-..-..-..-..-..{. -..-..-..-..-..-..-.. .-..-..-..-..-. -..-..-. - -..-...~..-..-..-.. -..-..-..-..-..-.. -..- .-..-..-..-..- -..-..-..-.. -..-. j ..- -..-..-..- ..-..r'..-..-..-..-..-..-..-..-...t..-..-..-..-..-..-..-..-..~ - --G;iSEb~6Tgti~ - --- ----__::~_-~u_~__i's_i4 -- -:L7o5.oeti_~_.5---- ---- ------- .. .. .. .. .. .. .a-.: -.. -.. .. .. .. r. .. .. .: .. .. .i .. .. .. .. .. .. --- --- --:t: - - .;:z I~aa~al~al~ll~alMa~a~~ae^ec~ca 1a~ cltll~el~lc~.e•ec•ca~11~11~ ..•c1~1c~11~a1~11 X11 1~11~.1~11~11~11 11 1 11 1 1a c1~11 ~a~~ac~ ~~~t~ta~cc~lt~c1~11.11 Il~tl ~Il~ll~al~ll~ll~ - - - -tl ~Il~ll~lt ca, ' • ~1~1 ~ ~Ii• • • t 1c~lt~ 11*.e~11 X11 ta1~ pearl Crv 8/100: End Crv •Crv 0/t00 • •aEnd Crv Crv 4/700 Ehtl Crv 7D /4-7 /2" LnF ,wxw..wxw.xxw>,.wxwxwrxxw. .,x„ xw.,w„w„w,. w.,w.,. „w.,w,x.„w, ,w„w„w...+.,w„w„w.,w,iw ,.w.,w..wxw..wix..x..,w,.w„w,.w. ,,w„w„wxw.,w..w„w,,.i.,w„w„w. „w„w,. „i., End Crv Crv 8/100 End Crv End Crv L-205 06b Tgt J L~205 75/8" Csg Pt Tgt §0^ pt -205PB1 (P3) Crv 12J100 0 600 1200 1800 2400 3000 3600 Vertical Section (ft) Azim = 180°, Scale = 1(in):600(ft) Origin = 0 N/-S, 0 E/-V 4200 4800 2400 3000 3600 4200 4800 by • Schlumberger WELL L-205 (P2) FIFLD Prudhoe Bay Unit - WOA STRUCTD RE L-PAD Magnetic Parameters Surlaw Laatbn NAD1] Alaska Slale Planes. Zane Od. US Feet Misrallaneous Model'. 9GGM 200] Olp: 908]1" [)ale: May 05.200] LaL. N]02t 0.328 NO~flInO. 59]8082.10 flU5 Grid Conv. •0.63561986" Slol: 5-G NO RM Rotary iadla 1]fi.]O II aMVe MSL) May Dec'. •13508' FS'. 5]E23.9 ni Lon: WIG91930.2% Easling: :W313000 flU5 Sule Fact'. 099990)8503 Plan: L-205 (P2) Srvy Date. December 11.200] -2400 -1800 -1200 -600 0 0 -600 -1200 n n n Z -1800 0 0 c m m -2400 U V V v -3000 -3600 -4200 0 -600 -1200 -1800 -2400 -3000 -3600 -4200 -2400 -1800 -1200 -600 0 «< W Scale=1(in):600(ft) E »> BP Alaska i Anticollision Report Company: BP Amoco Date: 12/11!2007 Time: 10:29:32 Page: 1 Field: Prudhoe Bay Reference Site: PB L Pad Co-ordinate(NE) Reference: Well: Plan L-205 (S-G), True North Reference ~'1'ell: Plan L-205 (S-G) Vertical (TVD) Reference: L-205 Plan 76.7 Reference Wellpath: Plan L-205 OBb Db: Oracle GLOBALSCAN APPLIED: All wellpaths within 200'+ 100/1000 of reference -There are 1[I@ILHa¢ells in thisFftlid~pal Plan & PLANNED PROGRAM Interpolation Method: MD Interval: 5.00 ft Error Model: ISCWSA Ellipse Depth Range: 3030.00 to 8977.28 ft Scan Method: Trav Cylinder North Maximum Radius: 1094.88 ft Error Surface: Ellipse + Casing 'I~ Survey Program for Definitive Wellpath I Date: 8/8/2007 Validated: No Version: 6 ', Planned From To Survey Toolcode Tool Name ' ft ft _.-- ' 28.50 800.00 Planned: Plan #3 V1 (0) GYD-GC-SS Gyrodata gyro single shots ' 800.00 5360.00 Planned: Plan #2 V1 MWD+IFR+MS MWD +IFR + Multi Station 5360.00 8977.28 Planned: Plan #2 V1 MWD+IFR+MS MWD +IFR + Multi Station Casing Points MD TVD Diameter Hole Size N~anie ft ft in 'in 3016.87 2741.70 10.750 13.500 10 3/4" I 5416.10 4411.70 7.625 9.875 7 5/8" ' 8979.72 0.00 L--- - 4.500 6.750 _.. _ _ 4-1/2" _ _ --__ _ _-- Summary ---------_ _._- Ot1'set ~~'ellnath ---- ---- ~ Reference Offset Ctr-Ctr ` No-Go Site Well Wellpath MD MD< Distance :area ft ft ft'" ft ~I PB L Pad L-01 L-01 V14 PB L Pad L-02 L-02 V1 3036.72 3215.00 893.55 49.72 ' PB L Pad L-02 L-02A V5 3046.58 3240.00 968.56 55.07 PB L Pad L-02 L-02AP61 V2 3046.58 3240.00 968.56 55.07 PB L Pad L-02 L-02P61 V21 3036.72 3215.00 893.55 49.73 ' PB L Pad L-03 L-03 V5 ' PB L Pad L-04 L-04 V5 ' PB L Pad L-101 L-101 V4 PB L Pad L-105 L-105 V4 PB L Pad L-106 L-106 V14 ' PB L Pad L-107 L-107 V14 PB L Pad L-108 L-108 V18 PB L Pad L-109 L-109 V12 PB L Pad L-110 L-110 V11 7663.04 5930.00 548.58 107.72 PB L Pad L-111 L-111 V24 3032.34 3020.00 355.34 67.29 PB L Pad L-112 L-112 V8 10607.81 3090.00 557.52 93.13 ' PB L Pad L-114 L-114 V15 3854.83 4060.00 - 633.55 75.58 ' PB L Pad L-114 L-114A V4 3985.56 4215.00 .310.66 81.69 ' PB L Pad L-115 L-115 V7 - PB LPad L-116 L-116 V10 3034.59 3300.00 ~ 1061.61 56.10 PB L Pad L-117 L-117 V11 PB L Pad L-118 L-118 V9 ' PB L Pad L-121 L-121 V14 7983.62 5940.00 1007.85 105.45 ', PB L Pad L-121 L-121A V1 8750.96 6655.00 268.01 215.55 ', PB L Pad L-122 L-122 V6 3030.59 3125.00 923.40 69.42 PB L Pad L-123 L-123 V5 ~~ PB L Pad L-123 L-123PB1 V3 PB L Pad L-123 Plan L-123L1 V1 Plan: ' PB L Pad L-124 L-124 V13 PB L Pad L-124 L-124P61 V5 PB L Pad L-124 L-124PB2 V4 PB L Pad L-200 L-200 V7 ' PB L Pad L-200 L-200L1 V3 PB L Pad L-200 L-200L2 V6 PB L Pad L-202 L-202 V6 PB L Pad L-202 L-202L1 VS i, PB L Pad L-202 L-202L2 V7 ' PB L Pad L-202 L-202L3 V8 PB L Pad L-204 L-204 V8 PB L Pad L-204 L-204L1 V5 PB L Pad L-204 L-204L2 V7 Allo~cahle Deviation ft 843.83 913.48 913.48 843.82 440.86 288.05 464.38 557.97 228.97 1005.51 902.40 52.46 853.98 ~I Warning Out of range Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out of range Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Out of range Pass: Major Risk Out of range Out of range Pass: Major Risk Pass: Major Risk Pass: Major Risk Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out of range Out. of range Out of range Out of range BP Alaska Anticollision Report Company: BP Amoco Date: 12111!2007 1'imr 10:29:32 Page: ? Meld: Prudhoe Bay Reference Site: PB L Pad Co-~irdinute(NE) Refe rence: Well: Pla n L-205 (S-G), True North Reference Well: Plan L-205 (S-G) Vertical (TVD) Refere nce: L-205 Plan 76.7 Reference V1'ellpath: Plan L-205 OBb Ub: Oracle Summary <-------------- Offset W'eApath ------ __ ---> - _ Reference Offset Ctr-Ctr No-Gn Allowable Site WeN Wel~lpath MD N1D Distance Area Deviation Warning ft ft ft ft ft PB L Pad L-204 L-204L3 V5 Out of range ', PB L Pad L-204 L-204L4 V5 Out of range ~ PB L Pad L-211 L-211 V6 Out of range ~~ PB L Pad L-211 L-211 P61 V6 Out of range ~'~~ PB L Pad L-212 L-212 V11 Out of range PB L Pad L-212 L-212PB1 V9 Out of range PB L Pad L-212 L-212P62 V2 Out of range i PB L Pad L-213 L-213 V9 Out of range ', PB L Pad L-218 L-218 V5 Out of range PB L Pad L-250 L-250 V4 Out of range PB L Pad L-250 L-250L1 V14 Out of range PB L Pad L-250 L-250L2 V10 Out of range ', PB L Pad L-250 L-250PB1 V4 Out of range 'I PB L Pad L-50 L-50 V1 Out of range PB L Pad L-50 L-50PB1 V4 Out of range ~~ PB L Pad L-51 L-51 V6 3033.05 3290.00 1005.20 43.26 961.94 Pass: Major Risk ~, PB L Pad NWE1-01 L-100 V2 3030.00 3065.00 650.72 88.24 562.48 Pass: Major Risk ', PB L Pad NWE1-01 NWE1-01 V5 3030.00 3065.00 650.72 88.24 562.48 Pass: Major Risk ', PB L Pad Plan L-205 (S-G) Plan L-205L1 OBc V8 PI 3850.00 3850.00 1.04 89.74 -88.70 FAIL: Major Risk PB L Pad Plan L-205 (S-G) Plan L-205L2 OBd V6 PI 3850.00 3850.00 1.04 89.83 -88.80 FAIL: Major Risk PB L Pad Plan L-205 (S-G) Plan L-205L3 OBa V5 PI 3850.00 3850.00 1.04 89.74 -88.70 FAIL: Major Risk '; PB L Pad Plan L-205 (S-G) Plan L-205L4 OA V4 Pla 3850.00 3850.00 1.04 89.74 -88.70 FAIL: Major Risk i ' PB L Pad Plan L-205 (S-G) Plan L-205L5 Nc V3 Pla 3850.00 3850.00 1.04 89.74 -88.70 FAIL: Major Risk PB L Pad Plan L-205 (S-G) Plan L-205P61 VS Plan: 3045.00 3045.00 0.14 75.58 -75.44 FAIL: Major Risk PB L Pad Plan L-220 (S-I) Plan L-220 V4 Plan: PI Out of range 'i PB L Pad Plan L-221 (S-P) Plan L-221 (2xx tgt) V Out of range i PB L Pad Plan L-52 (S-E) Plan L-52 V1 Plan: Pla Out of range • FieldPrudhoe Bay Site PB L Pad Well:Plan L-205 (S-G) WellpathElan L-205 OBb 313 300 200 100 0 2 100 200 300 313 n 0 Travelling Cylinder Azimuth (TFO+AZI) [deg] vs Centre t EPA Aquifer Exemption - 40 CFR 147.102 (b)(3) 6050000 6000000 5950000 5900000 5850000 400000 500000 600000 700000 800000 L-205 (and all laterals) permit to drill • Maunder, Thomas E (DOA) From: Kolstad, Scott R [Scott.Kolstad@bp.com] Sent: Monday, April 07, 2008 10:45 AM To: Maunder, Thomas E (DOA) Cc: Tirpack, Robert B; Engel, Harry R Subject: RE: L-205 (and all laterals) permit to drill Thanks Tom, Spud for L-205 is around 4/24. Scott From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Friday, April 04, 2008 3:50 PM To: Kolstad, Scott R Cc: Tirpack, Robert B; Engel, Harry R Subject: RE: L-205 (and all laterals) permit to drill Scott, Thanks for the email. I heartily support standardization to the extent practical. It is also my opinion that such standardization should "captured/memorialized" in some sort of memo/agreement document. I suspect there are a number of items that could be considered. I do know the permit applications are in house. When do you plan to spud? Tom Maunder, PE AOGCC From: Kolstad, Scott R [mailto:Smtt.Kolstad@bp.com] Sent: Friday, Apri104, 2008 3:04 PM To: Maunder, Thomas E {DOA) Subject: L-205 (and all laterals) permit to drill Tom, Page 1 of 1 You should be receiving the application for permit to drill for L-205 multilateral. In the application I applied for testing the BOPS to 3,000 psi based on the MASP. After further discussion here with Rob Tirpack, we would like to change this to 3,500 psi. This change is for in house standardization of testing producers to 3,500 psi and injectors to 4,000 psi. As a result, the tubing test pressure and 7 5/8" casing test pressure wilt also change to 3,500 psi. Thanks, Scott 4/7/2008 Page 1 of 1 AAaunder, Thomas E (DOA) From: Hubble, Terrie L [Terrie.Hubble@bp.com] ~~ ~ ._,., ©~~ Sent: Wednesday, March 19, 2008 11:17 AM To: Maunder, Thomas E (DOA) Subject: RE: Planned L-205 Multilateral Oh yes, you are right and really that is what I meant to type (L-205L1-01). Thanks for your input. Terrie From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Wednesday, March 19, 2008 11:03 AM To: Hubble, Terrie L '~ Subject: RE: Planned L-205 Multilateral Hi Terrie, You got nearly all of it. The only name I think needs changing is for segment #3. I believe it should be L-205L1- 01 rather than L1-02. Thanks for including the drawing, it really helps. Call or message with any questions. Tom Maunder, PE AOGCC From: Hubble, Terrie L [mailto:Terrie.Hubble@bp.com] Sent: Wednesday, March 19, 2008 10:45 AM To: Maunder, Thomas E (DOA) Subject: Planned L-205 Multilateral Hi Tom, I had a lengthy discussion with Taylor West yesterday... to the point where I am now confused about how to name some of these complex multilateral wells. I have attached a diagram of a planned well that Taylor brought to my attention. I have numbered each leg in the order it will be drilled. Please help me name the individual legs... I suspect they would be (in drilled order) L-205 L-205L1 L-205L 1-02 L205L2 L-205L3 L-205L4 Is that right? Your help is appreciated. Thanks! Terrie 4/18/2008 U TRANSMITTAL LETTER CHECKLIST WELL NAME ~~~ ~- " ~~~ PTD# Z~~j ~ (~~`~ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: I'~~e~!~coG POOL: r ~,-~~-Z,,,,,,, tt t Circle Appropriate Letter /Paragraphs to be Included in Transmittal Letter ~©© 1 CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in permit No. ,API No. 50- API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name (_~-~-~ 2.~`~ ~PH) and API number (50-~- - 7C~) from records data and logs ac d f ll s~ quire or we f /~ ,G - Zj> SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce 1 inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals throu h tar et zones. Non-Conventional Well Please note the following special condition of this permit: production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. ~Comaanv Name) must contact the Commission to obtain advance approval of such water well testing ro ram. Rev: 1/l 1/2008 ~I-ELL PERMIT CHECKLIST Field & Po°I PRUDHOE BAY, ORION SCHR BL OIL -640135 Well Name: PRUDHOE t3AY UN GRIN L-205 Program DEV Well bore sag ^ PTD#:2080530 Company BP EXPLORATION (ALASKA) INC Initial ClasslType D EV 1 PEND GeoArea 890 Unit 11650 OnlOff Shore Qn_ Annular Disposal ^ Administ~adon . 1 Petmitfgaattaohed- - - --- --- - - --- ------ NA- - ----- - -- -- ------- ----- - - ----- -- -- - -- 2 Lease number appropriate_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _N°- - - - - - - - Corre°ked 9mission on 10~401:_Su~ loc-& top prod tnt in ADL O28239;?D in ADC 028241. - - - - - - - - - - - - - - 3 Uniquewetl_nameandnumber -- - --- - - - ------ Yes--- --------- - - - ------- - --- ----- - ------------------ j 4 WeIlloCatedina_defirled~ool_____________________________________ Yea--_ ---_PRUDHQEBAY,ORION SCHR B1.011.-640135_govarrredby CO.505.-_____--__._____________ 5 Wall located proper distance from dNling urlitbaundary_ _ _ - _ - - - . _ _ _ _ _ _ _ . _ - Yes - - - - - - _ The_Schrader Bluff Oil Pool shall not be opened_in any_weh closer than 5Q0' to an_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ 6 -Wall located proper distance from other wells . . . . . . . . .... . .. . . ... _ Yea - - - - - - _ external boundary where ownership changes. -Spacing units shall be a minimum of_10 acres. - - - - - - - - - _ . _ ~ 7 Suffrcient acreage available in_dritling unit_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes - WeUbate-conforms to CQ 505, .Rule 2, - - _ - - _ _ - _ _ - - - ~ 8 It-d®viated,iswellbore piat_irlcluded- ------ -- -- -- -- ---------- Yes - ---- -- -- -- .. _..---- --- --- -- --- -- -- 1 I 9 OpetatotoMya~ectedparky-------------- - ------ --- ---- --- Y~- - ----- --- - -- ----------- - ------------ - ----- ------ ----- -- --- -- ~ 10 Opetatotbas_appropriatekondlnforca--------------------------------- Yes--- ----Bond 6194193 continuation-cedifiatavalidthtoughJuy81,2QOB,....._...-------------------- ~ 11 Pemlikcanbedssuedvu)ihtzutCO~sartratioeordar---------------------------- Yes--- --------------------------------- Appr Date j 12 PemlJkoanbotssuedwlthoutadmtr~istrative_aPProyal------------------------- Yes-- --------------------------------------------------------------------- SFD 4A12008 13 CanpormitbeaRprRvedbafora15•daywait------------------------------- Yes--. .----------------------.-- - -------------- ~ 14 -Wfllllocatedwhhinareaand-strataaUthOrRadby-InlactbnO[det#(putlQ#in.comment$)-(FOr_ Yes--- ----AIO-~6--------------------------------------------------------------- j 15 Ahweils_within4l4_mtte.area-ofteviewident(Cad(fotsetyicewetlonhO--------------- -NA---- -------------..-.--...------------------------..--.--..------------.--.- 16 Pte•producedinjeCtoe duration.ofpreproductiooteasihan3months_(Forservi-ca well QnJy)-- 1VA--- - --------------------------------------------------------------- ~ 17 Nonconven,gas-conform$taAS31.0;a,03QQ.1.A)~(u2.A•D) --- -- -- -----.._ NA._.. ---- --- -- -- -- -- ---- - - ------------------- - -- -- .. -- ---- 'Engineering 1 18 Conduckorstring-ptovvided----- ------------- -- -- -- ---- -- -- Yea--- ----- - ---- - --- ------- --- --- -- -- - ----- --- - 19 SutfaaecasingprotactsallknownUSDWs------------------------------ -NA---. ----Ailaquifersexempted, 40 CFR_147.1Q2(b)(3)and_AEO1.---------------------------------- 20 CMTvoladequate_totirculateonconduolor8,surfcsg.--------------------- Yes--- ---------------....-------------.----------------------------------- 21 CMTvoladequate_toBe•infongatnngtosudcs>~-- -- --- -- -------- -KO -- - - -- -- -- --- - ----------- - ---- -- ----- - - - ------ 22 CMTwillcover_allknownAraduciigeborizorts______________________________ Ko__-_ ___SloBedunarcompletionplanned~_.-_.-_---_---_-.------------------------____-- 23 CasingdesgnsadequatafotC,TBB_permafrost-- --- - - -- --------- Yes-- ----- -- -- -- --- -- ---------- ------ ----- ----- ---- -- 24 Adequate tarltcage-o1 reserve pit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Yes _ _ - _ _ _ _ Rig equipped with steel pits, No reserve pil planned.- AI[ waste_to approved disposal weU(S), _ _ _ _ _ _ _ _ . _ _ _ _ 25 Itare•drili,bas-a10.403forabandonmentheenapproved---------------------- NA.--- --.--------------.-------.------.--------------------------------------- , 26? -Adequate-wetlhota separation:proposed- - - - - -- - -- - - - - - ---- - - -- - - - - - - - - - - Yea - - - - _ - - Proximhy analysis parf_om)ed. Traveling cylinder path calculated. Gyroa possible in surface hole, _ _ - _ - - _ - - - 27 if diverterr~ulred,doe$itmeetregulations----- --- --- -- - - Yes--- ------ -- --- ----- ---------- -- -------- - -- - --- --- Appr Date 28 Drliling fluid program scl~matk & equip listadeQuate- - - - - - - - - - - - - - - - - - - - - - - - - Yea - - - - _ ..Maximum expected fomlation pressure 8,6- EMW._ MYY up to 9,3_ppg.- . _ - - _ _ _ - _ _ - _ _ - . _ - _ _ _ - _ _ _ _ TEM 41912008 29 9OPEs,-da-theymeetregulation----------- - ----- -- - - -.- Yea--- ------ -- --- -- ----------- ------- - -- ----- - - i 30 BOPI=-prase feting appropriate; reel to_(pui psig in_commenis)- - - - - - - - - - - - - - - - - - - - Yea - - - - - - MASP calculated at 1470 psi, 3500-psi_BQP teatplanned. - - _ _ _ _ - _ - - ----- ------ ------- ~ 31 ChoisemanifoldcompJieswIAPLRP•53~May84)----- -- -- -- -- - Yea--- ------ -- -- - -------- -- - ------- - -- ---- ----- 32 WorkwilfpCCUtwipteutoperationshutdown--- --- -- ------ Yes- - ------ -- - - -- -- -------- ------ --- - - - ----- -- ---- 33 Is pr~senceQf H2S gasprohable _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ No_ _ . _ _ _ _ _ H2S is not repo[ted in Sl3production but js presentjn Ilftga4._ Rig has sensors and alarm&. - - - _ - - _ - - _ _ _ . 34 _MachanicalcooditionofwallawittiinAQRyarfGed(Forservicewellonly)-------------- -NA--- ------.-.-------------.-......-.-------.-.------.---------.------------ Gsotogy 35 Permitoan be Issued wlo hydrogen-sulflde measures - - - - - - - - - - - - - - - - - - - - - - - - - -P1o_ _ - _ - . - H2S precautions wiil_be followed; no H2s expected in resentoir,_but some.occurs in lift gas. _ _ _ _ - - - _ - - . _ - - 36 Aatapresented ort potardial9verpressurezones- - - - - - - - - - - - - - - - - - - - - - - - - - - Yes - - _ _ - - -Expected reservoirpteasure is 8.5 to $,6ppg EMW, will be drilled with `3.3 ppgmud, _ - - _ _ _ _ _ _ _ - _ - - _ _ _ _ Appr Date 37 Seism~analysisofahapowgaszonas__________________________________ NA--- ----____-- ------------------------------------------------- SFD 4812008 38 Seabedoonditi9nsurve-y-(ifo~•&hoCe)--------------------------------- NA---- ------------ ------------------------------- 39 Contecinamelphoneforweekly.progtessteports(explotatoryonly]-.-_.-__---.-.-- _Y-es--- ----ROt~ertTlrpack 907.564.4166------------------------------------------------- Geologic Engineering Public Date: Data Date Main well bore with clot hole for ro osed hexa•lateral main well bore lus four laterals lus one s oke SFD 4812008 p p p ( P P P )~ Commissioner: Commissioner: . Co er s Welt History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. • Schlumberger Analysis of Bottomhole Reservoir-Fluid Samples BP Alaska Prudhoe Bay Well L-205 / SB_Nb Santl Modular Formation Dynamics Testing (MDT) Samples Heavy-Oil PVT Study Report Prepared for Greg E. Bernaski BP Alaska Standard Conditions Used: Pressure: 14.696 psia Temperature: 60°F Prepared by Stefan Smuk Schlumberger Oilphase-DBR 16115 Park Row, Suite 150 Houston, Texas, 77084 + 1 281 285 6370 • Date 30 July 2008 Report # 200800119-B 2o~s-~S 3 ~~-~35 • • Client: BP Alaska Well: L-219i Field: Prudhoe Bay Unit - WOA ~~hlumberger Table of Contents List of Figures ....................................................................... . List of Tables .......................................................................... EXECUTIVE S.UMMARY............ ...................... Objectives Introduction Scope of Work ........................................................................ Results ................................... SUMMARY DATA ...................... .............................. ... CDMPDSITIDNAL.DATA ................. .. ......................... PVT DATA ........................................................... Appendix A: Nomenclature.and. Definitions .................... Appendix B: Molecular.Wei.ghts.and.Dsnsities.Used........ Appendix C: EQUIPMENT ................... ........................... Fluid Preparation. and .Validation .................................................. Fluid Volumetric.(PVT.l.and.Viscosity.Equipment ........................... Appendix D: PRQCEDU.RE ............ ........................... .. Fluids Preparation.and. Validation ............................................. . Constant Composition.Expansion.Procedure ................................. Differential Vaporization.Procedure ............................................. Multi-Stage Separation. Lest ....................................................... Liquid Phase Viscosity. and Density. Measurements During. D.V. Step Stock-Tank Oil.(STOJ.Viscasity.and. Density.Measurements ........... Asphaltene, Wax.aadSulfur.Content.Measurements ..................... SAR(P/A Analysis ....................................................................... High-Temperature .High. Pressure.Filtration. T.est ........................... . Oilphase-DBR Page 2 3 3 4 4 4 4 4 s s 11 15 is 17 17 17 20 20 20 20 20 21 21 21 22 22 File200800119-B • • J Client:. BP Alaska Well: L-219i Field: Prudhoe Bay Unit - WOA Schlumberge~ List of Figures Figure 1: StockTank.Oil..Chromatogcam~Sample.1..1.1.- ....................................... Figure 2: k-Plot for.Equ.ilibrium.Check.~Sample.l...11.) ............................................ Figure 3: Constant.Composition Expansion at.9.1.4°E.-.ftelatiue.~[alllme.~.Sample.l...1 ].) Figure 4: Reservoir.Fluid.Viscosity91...4°F.Sample.]...11.- ...................................... List of Tables Table 1: Well and.Sample.Identification ................................................ Table 2: Sample.Transfer.and.Validation.Summary ................................... Table 3: Measured.Reservo.ir-Flliid.Pro{~ertiES ......................................... Table 4: Measured.Stock-lankDil.Properties .......................................... Table 5: C30+Compnsition,.G.OR,.°APl,by.Zero-Flash~Sample.1.1.1) .............. Table 6: Calculated.Fluid.Properties.(Sample.7...17.) .................................... Table 7: Constant.Com~nsition.Expansion.at.91.4.°F.~Sample.l.].1) ................ Table 8: Reservoir Fluid.~liscosiiy.9.1..4°.F.SSample..1..1.1.- .............................. Oilphase-DBR Page 3 ............. 10 to 12 14 13 File200800119-B Client: BP Alaska Field: Prudhoe Bay Well: L-205 ~chlumber~er • EXECUTIVE SUMMARY Ob%ectives To evaluate the composition and phase behavior of bottomhole fluid samples collected during openhole formation- dynamics testing. Introduction At the request of BP Alaska, Oilphase-DBR conducted a fluid analysis study of multiple bottomhole reservoir-fluid samples collected during Modular Formation-Dynamics Testing (MDT) operations in the Prudhoe Bay well L-205, Alaska. Field/sampling information appears in separate Schlumberger Oilphase-DBR reports, under job number AK073. One MDT run was executed, resulting in a total of 16 samples being captured from six intervals spanning the Schrader Bluff OA, OBa, OBb, OBc, OBd and Nb sands. The Nb-sand samples alone were sent to Oilphase-DBR (Houston) for analysis. Scope of Work • Homogenize the bottomhole hydrocarbon-fluid samples at the reservoir conditions with rocking for 48 hours. • Settle the samples vertically for a period of 48 hours. Subsample fluids in order to evaluate free-water and emulsified-water content. • Subject to acceptable water-content, conduct preliminary evaluation of the demulsified hytlrocarbon- fluid samples, including single-stage flash Gas-Oil Ratio (GOR-, reservoir fluid composition, stock-tank oil (STO) properties, and calculated monophasic-fluid properties. • Conduct a Constant Composition Expansion (CCE) testing of the test-sample, at reservoir temperature and up to two additional temperatures. • Conducting viscosity testing at reservoir temperature, over a range of pressure conditions. Analysis was to be conducted using Electromagnetic Viscometry (EMV-, after demulsification, with pre-filtration of each subsample acrosss a 0.2-µm filter. Results The following points summarize the results of analyses conducted on the received bottomhole-fluid samples: • The four samples received (of 16 original) included only one that was found to contain analytically useful quanitities of hydrocarbon fluid. The remainder contained only sampled water. • Demulsification of the hydrocarbon-containing samples was considered unnecessary, with initial water content in the range of under 1 wt% STO. Oilphase-DBR Page 4 File200800119-B • Client: BP Alaska Field: Prudhoe Bay Well: L-205 Sch~umber~er Quality Assurance Process Oilphase-DBR Schlumberger is committed to providing unsurpassed services in bottom hole reservoir fluid sampling and fluid property analyses while maintaining high standards of safety and quality. Our objective is to deliver the most accurate and reliable sampling processes and fluid property measurements available in the industry. This objective requires persistent innovation and ongoing development of state-of-the-art technologies and equipment. A rigorous quality assurance program, continuous employee training and enforcement of strict safety standards maintain our compliance with Quality, Health, Safety and Environment (QHSEI requirements. Proactive integration of QHSE objectives and management goals at every level supports the communication and implementation of QHSE policies and standards. Schlumberger requires that qualified engineering technologists perform all laboratory measurements according to specified analytical procedures designed for obtaining accurate and reliable data. Rigorous quality assurance programs and instrument calibration protocols are in place to ensure and maintain the validity of the procedures. Details of these programs are available upon request. The lab-generated data undergoes the following five levels of quality checks to establish the integrity of the reported results. a) Establish quality of measurement during data generation. b) Establish quality of processed data as per checklist during data processing by Data Duality Engineer. c) Data Duality Supervisor confirms the overall quality of the processed data and ensures cross correlative consistency dl The responsible Project Engineer confirms consistency of reported data el Engineering Project Manager review the results/report for overall consistency • Hence the completion of each project requires that a qualified and experienced team of engineers perform a variety of independent review of all technical data to confirm the consistency and accuracy of the report as per pre-established Quality checklists designed for each operation and based on the level of complexity. All property measurements and calculation procedures are maintained in company archives for a period of 1 year. This information is available for review by clients upon request.' The file and laboratory records information are listed below to provide access reference to all records related to this project. For any questions, please do not hesitate to contact the undersigned Project Engineer. Project No.: 200800119 Data Quality Doris Gonzalez Data Quality Engineer Overall Report Quality Clay Young Oilphase-DBR Operation Manager, NGC Oilphase-DBR Data Reporting Stefan Smuk Fluids Analysis Support Engineer Page 5 File200800119-B .Client: BP Alaska Field: Prudhoe Bay Well: L-205 ~cbumberger • Table 1: Well and Sample Identification Client: BP Alaska Project No.: 200800119 (Field Job Number AK 073) Field: Prudhoe Bay Well: L-205 Sample ID Sampling Storage Sand Reservoir Conditions Chamber Cylinder Pressure Temperature Depth Depth (psia) (°F) (ft MD) Ift TVD) MDT Run # 1 1.11 MPSR 2875 8616-OA SB_Nb 1817 91.4 4673 -4101 1.12 MPSR 2865 14308-QA SB_Nb 1817 91.4 4673 -4101 1.13 MPSR 1401 8622-OA SB_Nb 1817 91.4 4673 -4101 1.14 MPSR 2867 14309-QA SB Nb 1817 91.4 4673 -4101 Table 2: Sample Transfer and Validation Summary • Sample ID Sampling Storage Sand Field Open. Field Transfer Transfer Lab Open. Chamber Cylinder Pressure Pressure Volume Pressure (psig @ T) (psig @ T) (cc) (psig @ T) MDT Run # 1 1.11 MPSR 2875 8616-OA SB Nb 8600 @ 70°F 5000 @ 120°F 435 985 @ 76°F 1.12 MPSR 2865 14308-OA SB Nb 9000 @ 71°F 5000 @ 120°F 440 860 @ 76°F 1.13 MPSR 1401 8622-QA SB _Nb 8500 @ 71 °F 5000 @ 120°F 430 870 @ 76°F 1.14 MPSR 2867 14309-QA SB _Nb 9000 @ 70°F 5000 @ 120°F 430 988 @ 76°F • Oilphase-DBR Page 6 File200800119-B • • • Client: BP Alaska Well: L-205 Field: Prudhoe Bay ~chlumberger Table 3: Measured Reservoir-Fluid Properties Sample ID Storage Cylinder Depth Single-Stage Flash GOR* API** Sol'n. Gas Gravity *** Saturation Pressure at Tres (ft. MDR (scf/stb) (°API) (psia) (psia~ MDT Run#1 1.11 8616-QA 4673 177 15.1 0.635 1652 1.12 14308-QA 4673 1.13 8622-OA 4673 Na hydr~arbon sample recovered 1.14 14309-QA 4673 Table 4: Measured Stock-Tank Oil Properties Flashed Stock-Tank Oil Properties at Atmopsheric Pressure Sample ID Depth Depth Molar Mass Density Gravity Asphaltene Viscosity Content @ Tres (ft. MD) (ft. MD) (g/gmol) (g/cc) (°API~ (nC5, wt%1 Icpl MDT Run # 1 1.11 8616-QA 4673 394.5 0.965 15.1 - 152 1.12 14308-OA 4673 1.13 8622-QA 4673 No hydrocarbon. sample recovered 1.14 14309-OA 4673 * Flashed gas scf per barrel of stock tank liquid C~ 60°F. API=141.5/Density-131.5. *** Specific gravity of flashed gas, relative to air. t Volume of live oit at saturation pressure and reservoir temperature, per unit equivalent volume of flashed stock-tank liquid at 60°F. t The separation basis is a single-stage flash to standard conditions. Oilphase-DBR Page 7 File200800119-B • Client: BP Alaska Well: L-205 Table 5: C30+ Composition, GOR, °API, by Zero-Flash (Sample 1.11) Sample 1.11; Cylinder CSB 8616-QA; Depth 4673 ft. MD (-4101' NDSS~, SB_Nb Sand Field: Prudhoe Bay Sch~u~ber~er Component MW Flashed Gas Flashed Liquid Monophasic Fluid ~g/mole) WT % MOLE % WT % MOLE % WT % MOLE Carbon Dioxide 44.01 4.53 1.89 0.00 0.00 0.11 0.63 Hydrogen Sulfid 34.08 0.00 0.00 0.00 0.00 0.00 0.00 Nitrogen 28.01 0.52 0.34 0.00 0.00 0.01 0.11 Methane 16.04 81.03 92.86 0.00 0.00 2.00 30.98 Ethane 30.07 3.18 1.94 0.00 0.00 0.08 0.65 Propane 44.10 2.36 0.98 0.00 0.03 0.06 0.35 I -Butane 58.12 0.75 0.24 0.01 0.04 0.02 0.10 N -Butane 58.12 1.39 0.44 0.02 0.10 0.05 0.21 I -Pentane 72.15 0.53 0.14 0.02 0.09 0.03 0.10 N -Pentane 72.15 0.62 0.16 0.01 0.08 0.03 0.10 C6 84.00 0.75 0.17 0.17 0.74 0.19 0.55 M-C-Pentane 84.16 0.11 0.02 0.02 0.09 0.02 0.07 Benzene 78.11 0.02 0.01 0.01 0.02 0.01 0.02 Cyclohexane 84.16 0.09 0.02 0.02 0.08 0.02 0.06 C7 96.00 0.58 0.11 0.23 0.88 0.24 0.63 M-C-Hexane 98.19 0.14 0.03 0.00 0.00 0.00 0.01 Toluene 92.14 2.87 0.57 0.01 0.04 0.08 0.22 C8 107.00 0.36 0.06 0.18 0.60 0.18 0.42 E-Benzene 106.17 0.01 0.00 0.00 0.00 0.00 0.00 M/P-Xylene 106.17 0.02 0.00 0.00 0.00 0.00 0.00 0-Xylene 106.17 0.01 0.00 0.00 0.00 0.00 0.00 C9 121.00 0.13 0.02 0.31 0.93 0.31 0.63 C10 134.00 0.00 0.00 0.62 1.68 0.61 1.12 C11 147.00 0.00 0.00 0.91 2.24 0.89 1.49 C12 161.00 0.00 0.00 1.45 3.27 1.41 2.18 C13 175.00 0.00 0.00 2.06 4.28 2.01 2.85 C14 190.00 0.00 0.00 2.53 4.83 2.47 3.22 C15 206.00 0.00 0.00 2.99 5.26 2.91 3.51 C16 222.00 3.03 4.95 2.96 3.30 C17 237.00 3.02 4.62 2.94 3.08 C18 251.00 3.13 4.52 3.05 3.01 C19 263.00 3.38 4.66 3.29 3.10 C20 275.00 2.93 3.86 2.85 2.57 C21 291.00 3.69 4.60 3.60 3.07 C22 300.00 2.55 3.09 2.49 2.06 C23 312.00 2.74 3.18 2.67 2.12 C24 324.00 2.72 3.05 2.66 2.03 C25 337.00 2.45 2.64 2.39 1.76 C26 349.00 2.23 2.32 2.17 1.55 C27 360.00 2.55 2.57 2.48 1.71 C28 372.00 2.73 2.67 2.67 1.78 C29 382.00 2.03 1.93 1.98 1.28 C30 394.00 2.15 1.98 2.10 1.32 C31 404.00 2.43 2.18 2.37 1.45 C32 415.00 2.08 1.82 2.03 1.21 C33 426.00 2.01 1.71 1.96 1.14 C34 437.00 1.66 1.38 1.62 0.92 C35 445.00 0.96 0.79 0.94 0.52 C36+ 850.00 37.98 16.21 37.04 10.80 Total 100.00 100.00 100.00 100.00 100.00 100.00 MW 18.38 362.88 247.94 MOLE RATIO 0.3337 0.6663 Oilphase-DBR Page 8 file 200800119-B C~ • • Client: BP Alaska Well: L-205 Table 6: Calculated Fluid Properties (Sample 1.11) Sample 1.11; Cylinder CSB 8616-i1A; Depth 4673 ft. MD (-4101' NDSS-, SB_Nb Sand Field: Prudhoe Bay ~~~~~~~~~~~~ Properties Flashed Gas Flashed Liquid Monophasic Fluid Cn+ Composition Mass % Mole % Mass % Male % Mass % Mole C7+ 4.34 0.85 99.77 98.93 97.41 66.20 C12+ - - 97.47 92.36 95.06 61.54 C20+ - - 75.89 55.97 74.01 37.30 C30+ - - 49.27 26.07 48.05 17.37 C36+ - - 37.98 16.21 37.04 10.80 Molar Mass C7+ 94.19 365.98 364.82 C12+ - 382.95 382.95 C20+ - 492.00 492.00 C30+ - 685.82 685.82 C36+ - 850.00 850.00 Density C7+ - 0.918 - C12+ - 0.922 0.922 CZO+ - 0.948 0.948 C30+ 0.987 0.987 C36+ 1.010 1.010 Fluid at 60°F 0.965 Gas Gravity (Air =1 ~ 0.635 Dry Gross Heat Content (BTU/scf) 1,081 Wet Gross Heat Content~BTU/scf 1,062 OBM Contamination Level (vYt%) - STO Basis - Live Oil Basis Stack Tank Oil Properties at Standard Conditions: Measured Calculated C36+Properties MW 394.50 362.88 850.00 Density (g/cm3) 0.965 0.896 1.010 Single Stage Flash Data Original STO GOA (scf/stbl 177 STO Density (g/cm3) 0.965 STO API Gravity 15.1 OBM Density (g/cm3) Q60°F - Oilphase-DBR Page 9 File 200800119-B • • Client: BP Alaska Well: L-205 Field: Prudhoe Bay Schlumberger Figure 1: Stock Tank Oil Chromatogram (Sample 1.11) Sample 1.11; Cylinder CSB 8616-QA; Depth 4673 ft. MD (-4101' NDSS-, SB_Nb Sand p F441 A, i~a3 GC W6 MEASUREME4i34ND GATA+[? C4EMSTRTION+AlL4DAiA0.~03}31191CY981B.Oj 7A 960 400 ?50 3oa 20800119 BP 1.11 CSB 8616-QA RF FLASH CYLINDER 260 2aa 150 ^~ 50 e m X m v N p n m U U ~ ~ UUU U~U~UUp m o ~ U ~j p 0 ~ ~ c c c cccc--c ccccc a m m m ~ c c c ~ c c [ ~ ~ ~.~ ~ ~ 0 5 10 15 20 25 30 35 mi Figure 2: k-Plot for Equilibrium Check (Sample 1.11) Sample 1.11; Cylinder CSB 8616-QA; Depth 4673 ft. MD (-4101' NDSS-, SB_Nb Sand 3 2.5 2 6 o, 1.5 0 1 0.5 0 -4 Oilphase-DBR Page 10 File 200a00119-B -3 -2 -1 0 1 2 3 F C Client: BP Alaska Well: L-205 Field: Prudhoe Bay PVT Analysis of SB_Nb-Sand Sample 1.11 Schlumberger Table 7: Constant Composition Expansion at 91.4°F (Sample 1.11) Sample 1.11; Cylinder CSB 8616-QA; Depth 4673 ft. MD (-4101' NDSS-, SB_Nb Sand • Pressure Ipsia) Relative Vol (Vr=VNsat) % Liquid IVINsat- % Liquid (VlNtotal) Liquid Density (g/cm3) Y Function Compressibility (10~/psia) 1 5015 0.9800 98.04 100.0 0.958 5.2 2 4015 0.9860 98.57 100.0 0.952 5.6 3 3015 0.9910 -99.15 100.0 0.947 6.0 4 2015 0.9980 99.77 100.0 0.941 6.4 5 1965 0.9980 99.80 100.0 0.941 6.4 6 1915 0.9980 99.83 100.0 0.940 6.5 7 1865 0.9990 99.86 100.0 0.940 6.5 Pi 1817 0.9990 99.89 100.0 0.940 6.5 9 1765 0.9990 99.93 100.0 0.940 6.5 10 1717 1.000 99.96 100.0 0.939 6.6 11 1666 1.0000 99.99 100.0 Q939 6.6 Pb 1652 1.0000 100.0 100.0 0.939 6.6 13 1615 1.0040 99.9 99.5 5.4 14 1565 1.0100 99.8 98.8 5.4 15 1517 1.0170 99.6 97.9 5.3 16 1465 1.0240 99.4 97.1 5.3 17 1415 1.0320 99.3 96.2 5.2 18 1365 1.0410 99.1 95.2 5.1 19 1316 1.0500 98.9 94.2 5.1 20 1266 1.0610 98.7 93.1 5.0 21 1215 1.0720 98.6 91.9 5.0 22 1165 1.0850 98.4 90.7 4.9 23 1115 1.0990 98.2 89.4 4.9 24 1065 1.1150 98.0 87.9 4.8 25 965 1.1520 97.7 84.8 4.7 26 866 1.1980 97.3 81.2 4.6 27 765 1.2610 97.0 76.9 4.4 28 666 1.3420 96.6 72.0 4.3 29 565 1.4570 96.3 66.1 4.2 30 465 1.6230 95.9 59.1 4.1 31 366 1.8840 95.5 50.7 4.0 Oilphase-DBR Page 11 File 200800119-B Client: BP Alaska Field: Prudhoe Bay Well: L-205 Schlumber~er Figure 3: Constant Composition Expansion at 91.4°F -Relative Volume Sample 1.11) Sample 1.11; Cylinder CSB 8616-QA; Depth 4673 ft. MD (-4101' NDSS-, SB_Nb Sand • • 2.0 1.8 1.6 a a ~_ E 1.4 0 a .~ 1.2 1.0 0.8 ~ 0 1000 2000 3000 Pressure~psia) 4000 5000 6000 Oilphase-DBR Page 12 File 200800119-B • • Client: BP Alaska Well: L-205 Table 8: Reservoir Fluid Viscosity 91.4°F (Sample 1.11) Sample 1.11; Cylinder CSB 8616-OA; Depth 4673 ft. MD (-4101' NDSS-, SB_Nb Sand Field: Prudhoe Bay Schlum6erger Pressure Viscosity @ Tres (Psia) IcPI 1 5017 267.7 2 4020 227.8 3 3025 192.2 4 2018 160.1 5 1817 155.6 6 1637 151.5 7 1525 155.0 8 1277 176.4 9 1232 185.0 10 1205 191.2 11 1155 199.7 12 1113 208.3 13 1055 216.5 14 935 240.2 15 863 258.8 16 688 290.2 STO 15 794.7 Oilphase-DBR Page 13 File200800119-B Client: BP Alaska Well: L-205 Field: Prudhoe Bay Schlumberger Figure 4: Reservoir Fluid Viscosity 91.4°F (Sample 1.11) Sample 1.11; Cylinder CSB 8616-QA; Depth 4673 ft. MD ~-4101' NDSS-, SB_Nb Sand 900 800 700 600 v 500 .y O y 400 300 Z00 100 • J 0~ 0 Oilphase-DBR 1000 2000 3000 Pressure (psia) Page 14 4000 5000 6000 File 200800119-B Client: BP Alaska Field: Prudhoe Bay Well: L-205 Schlambe~~er A endix A: Nomenclature and Definitions PP API Gravity American Petroleum Institute gravity Bg Gas formation volume factor Bo Oil formation volume factor CCE Constant composition Expansion DV Differential Vaporization GLR Gas Liquid Ratio GOR Gas Oil Ratio LO Live Oil n Number of moles OBM Oil Based Mud P Absolute pressure Pb Bubble point pressure PV Pressure-Volume Method Pi Initial Reservoir Pressure R Universal gas constant Rs Solution gas oil ratio T Temperature V Volume Vr Relative volume • STL Stock Tank Liquid STO Stock Tank Oil %, w/w Weight Percent Z Gas deviation factor Dry Gross Heating Value is defined as the total energy transferred as heat in an ideal combustion reaction at a standard temperature and pressure in which all water formed appears as liquid. Wet Gross Heating Value is defined as the total energy transferred as heat in an ideal combustion reaction of water saturated gas at a standard temperature and pressure in which all water formed appears as liquid. Molar masses, densities and critical values of pure components are from CRC handbook of Chemistry and Physics and those of pseudo components are from Katz data. Gas viscosity is calculated from the correlation of Carr, Kobayshi and Burrows as given in the "Phase Behavior of Oilfield Hydrocarbon Systems" by M.B. Standing Compressibility inconstant mass study is obtained from mathematical derivation of relative volume. Gas gravity is calculated from composition using the perfect gas equation Gas deviation factor, Z=1) The Stiff and Davis Stability Index is an extension of the Langlier Index and is used as an indicator of the calcium carbonate scaling tendencies of oil field brine. • A positive index indicates scaling tendencies. • A negative index indicates corrosive tendencies. An index of zero indicates the water is in chemical equilibrium and will neither deposit nor dissolve calcium carbonates. Oilphase-DBR Page 15 File200800119-B • • • Client: BP Alaska Well: L-205 Field: Prudhoe Bay ~~hlumberger Appendix B: Molecular Components MW Oilphase-DBR and Densities Used (g/cc) C02 44.01 0.827 H2S 34.08 0.993 N2 28.013 0.808 C1 16.043 0.300 C2 30.07 0.356 C3 44.097 0.508 I-C4 58.124 0.567 N-C4 58.124 0.586 I-C5 72.151 0.625 N-C5 72.151 0.631 C6 84 0.660 MCYC-C5 84.16 0.753 BENZENE 78.11 0.884 CYCL-C6 84.16 0.781 C7 96 0.688 MCYCL-C6 98.19 0.773 TOLUENE 92.14 0.871 C8 107 0.749 C2-BENZEN 106.17 0.870 M&P-XYLEN 106.17 0.866 0-XYLENE 106.17 0.884 C9 121 0.768 C 10 134 0.782 C11 147 0.793 C12 161 0.804 C13 175 0.815 C 14 190 0.826 C15 206 0.836 C16 222 0.843 C17 237 0.851 C18 251 0.856 C19 263 0.861 C20 275 0.866 C21 291 0.871 C22 300 0.876 C23 312 0.881 C24 324 0.885 C25 337 0.888 C26 349 0.892 C27 360 0.896 C28 372 0.899 C29 382 0.902 Page 18 File200800119-B • Client: BP Alaska Field: Prudhoe Bay Well: L-205 ~chlumber~e~ Appendix C: EQUIPMENT Fluid Preparation and Validation The opening pressure of the cylinder is measured using a Heise pressure gauge soon after the sample arrives in the laboratory. Subsequently, the sample bottle is pressurized to the reservoir pressure using water-glycol mixture at the bottomside of the piston cylinder. Custom made heating jacket is wrapped around the cylinder to heat the sample bottle to the reservoir temperature. The sample bottle is then placed into a rocking stand and rocked for 5 days to homogenize the reservoir fluid. Live reservoir fluid analysis is necessary in the sample validation process as well as during the completion of various fluid studies. A description of the experimental equipment used for these analysis follows. All live fluid analyses are completed with a JEFRI Gasometer. This unit in conjunction with GC analysis (see below) provides the full fluid compositional analysis, GOR, density at sampling P&T corrected to standard conditions. The JEFRI gasometer consists of amotor-driven piston in a stationary cylinder. The piston displacement is monitored to determine the swept volume of the cylinder. The cylinder pressure is automatically held at ambient pressure. Piston motion is tracked by a linear encoder, which is subsequently, converted to measure the gas volume in the cylinder. The total Gasometer volume is 10 L. The evolved gas can be re-circulated through the system to facilitate equilibrium at a maximum flow rate of 40 L/hr. The operating pressure of the Gasometer is ambient pressure (up to a maximum of 40 psia) and the operating temperature ranging from room temperature to 40°C. Following the flash of the live fluid sample to ambient conditions in the gasometer, compositional analysis of residual hydrocarbon liquid and evolved gas phase is conducted using gas chromatography (GC-. • Analysis of hydrocarbon liquids is conducted using an HP6890 liquid injection gas chromatograph equipped with flame ionization detector (FIDE. In this system, separation of individual components is carried out in a 30m long, 530mm diameter "Megabore" capillary column made of fused silica with 2.6-micrometer thick methyl silicone as the stationary phase. The operating temperature range of the stationary phase is 60 to 400°C. Over this temperature range, the components eluted are from C, to C36 along with naphthenes and aromatics components. Based on the physical properties, these components are retarded in a segregated fashion by the stationary phase during the flow of carrier gas (helium) through the column. With prior knowledge of the amount of "retention" for known compounds contained in calibration standards, the same compounds can be identified in the unknown hydrocarbon sample by matching "retention" times. The relative concentration of each component is determined by the concentration of ions hitting the FID upon the elution of each component. The analysis of hydrocarbon gases is carried out using an HP6890 gas injection GC equipped with two separation columns. The first column is a combination of a 100 mesh packed column and 100 mesh molecular sieve using high purity helium as a carrier gas. The molecular sieve is used to achieve separation of the light gaseous components (nitrogen, oxygen, and methane) while the packed column serves to separate ethane, propane, butanes, pentanes, and hexanes along with carbon dioxide and hydrogen sulfides. The second column is a packed column as described previously in liquid analysis. This column is capable of achieving separation of components up to C1z+ along with the associated naphthenes and aromatics that are lumped into the C6, fraction during analysis and reporting. Components up to C4 are analyzed using a thermal conductivity detector (TCD) while the C5+ components are analyzed for using a FID detector. The instrument has programmable air actuated multiport valves that allow the flow of the sample mixture to be varied between the two columns, and hence, allowing for the correct separation and analysis of the injected gas. Fluid Volumetric (PVT/and Viscosity Equipment • Oilphase-DBR Page 17 File 200800119-B Client: BP Alaska Field: Prudhoe Bay Schlum~er~er Well: L-205 The preliminary saturation pressure, constant composition expansion (CCE), differential vaporization (DV-, multi-stage separation tests (MSST) are measured using apressure-volume-temperature PVT) apparatus. The PVT apparatus consists of a variable volume, visual JEFRI PVT cell. The main component of the cell consists of a Pyrex glass cylinder 15.2-cm long with an internal diameter of 3.2 cm. An especially designed floating piston and a magnetically coupled impeller mixer are mounted inside the Pyrex cylinder to allow for mercury- free operation. The bottom section of the piston is furnished with o-rings to isolate the hydraulic fluid from the cell content. The piston allows liquid level measurements as small as 0.005 cc. The magnetically coupled impeller mixer, mounted on the bottom end cap of the PVT cell, allow quick equilibration of the hydrocarbon fluid. The effective volume of the cell is approximately 120 cc. The Pyrex cylinder is housed inside a steel shell with vertical tempered glass plates to allow visual observation of the internal tube contents. A variable volume JEFRI displacement pump controls the volume, and hence, the pressure of the fluids under investigation by means of injection or withdrawal of transparent hydraulic fluid connected to the floating piston from the top of the JEFRI PVT cell. The same hydraulic fluid is also connected to the outer steel she11 to maintain a balanced differential pressure on the Pyrex cylinder. The PVT cell is mounted on a special bracket, which can be rotated 360°. The bracket along with the PVT cell is housed inside a temperature controlled, forced air circulation oven. The cell temperature is measured with a platinum resistance thermal detector (RTD) and displayed on a digital indicator with an accuracy of 0.2°F. The cell pressure is monitored with a calibrated digital Heise pressure gauge precise to ±0.1 % of full scale. The temperature and pressure ratings of this PVT system are 15,000 psi (103 MPa) and 360°F (182°C). The fluid volume in the PVT cell is determined using a cathetometer readable to the nearest 0.01 mm. The cathetometer is equipped with a high-resolution video camera that minimizes parallax in readings and uses ahigh-resolution encoder producing both linear and volumetric readings. The height measurements by the cathetometer have been precisely calibrated with the total cell volume prior to the start of the test. The floating piston is designed in the shape of a truncated cone with gradually tapered sides, which allows • measurement of extremely small volumes of liquid (0.005 cc) corresponding to roughly 0.01 % of the cell volume. The viscosity of the live reservoir fluid is measured at the reservoir temperature and pressure conditions using Cambridge SPL440 electromagnetic viscometer, which consists of one cylindrical cell containing the fluid sample and a piston located inside the cylinder. The piston is moved back and forth through the fluid by imparting an electromagnetic force on the piston. Viscosity is measured by the motion of the piston, which is impeded by viscous flow around the annulus between the piston and the sample cylinder wall. Various sizes of pistons are used to measure the viscosity of various fluids having different levels of viscosity. The temperature is maintained at the experimental condition using a re-circulating fluid heating system. The internal temperature is monitored using an internal temperature probe. The temperature rating of the viscometer is 190°C and pressure rating is 15,000 psig. The accuracy is ±1.5% of full scale for each individual piston range. The total volume of fluid sample required for viscosity measurement is 5 cc. A cylindrical piston cell (carrier chamber) with a maximum internal volume of 25 mL is attached at the top of the viscometer. The purpose of this cell is to allow the operator to conduct the differential vaporization pressure steps within the viscometer. The back and forth motion of the piston within a narrow clearance provides sufficient agitation to achieve phase equilibration and allow gases to escape and accumulate at the top of the carrier chamber. The heating jacket is wrapped around the viscometer and the carrier chamber and maintains experimental temperature uniformly throughout the system. • Oilphase-DBR Page 18 File200800119-B Client: BP Alaska Field: Prudhoe Bay Well: L-205 ~Y11~~~Y~1 ~~1 • • • The JEFRI PVT cell is also equipped with fiber optic light transmittance probes to measure the onsets of hydrocarbon solids nucleation (OHSP) due to changes in the temperature, pressure and/or composition. These fiber optic probes are mounted across the windows of the visual cell. The principle behind the measurement is based on the transmittance of a laser light in the near infra red (NIR) wavelength through the test fluid undergoing temperature, pressure or the fluid composition changes. In this system, a computerized pump is controlled to maintain the system pressure during isobaric temperature sweeps for wax nucleation, isothermal pressure drop and/or isobaric injections of precipitating solvents for asphaltene nucleation studies. The process variables ji.e., temperature, pressure, solvent volume, time and transmitted light power level) are recorded and displayed from the detector. The fiber optic light transmittance system referred to here that detects the conditions of OHSP is termed as the light scattering system (LSS-. High pressure filters are also used during the asphaltene nucleation study to quantify the amount of asphaltene in the fluid at the specified conditions. The filter manifold used is rated for 10,000 psia. The filter assembly consists of two plates screwed together with the hydrophobic filter sandwiched between them. Oilphase-DBR Page 19 File200800119-B Client: BP Alaska Field: Prudhoe Bay Well: L-205 Schlumberger • Appendix D: PROCEDURE Fluids Preparation and l/alidation After homogenizing, a small portion of the single-phase reservoir fluid is first subjected to a single stage flash experiment to determine flash Gas-Oil-ratio (GOR-. The flashing is conducted from some pressure above the bubblepoint pressure at reservoir temperature into an atmospheric Gasometer and measuring the corresponding volumes of gas and liquid. The atmospheric flash also provides parameters such as GOR and stock tank oil density. The flashed fluids (gas and liquid) are then subjected to compositional analysis using gas chromatographic technique. Subsequently, live oil composition is calculated based on the measured gas and liquid compositions and GOR values. to addition, asub-sample taken from each cylinder is isobarically transferred into the PVT cell at the reservoir temperature. Subsequently, a quick P-V relationship is established to determine the saturation pressure. Constant Composition Expansion Procedure A sub-sample of the test fluid is initially charged to the PVT apparatus and the system temperature stabilized at the reservoir temperature. The CCE experiment is then conducted by incrementally reducing the pressure from some pressure above the bubblepoint pressure to a pressure well below the bubblepoint pressure in a number of discrete steps. At each pressure step, the magnetic stirrer is used to make sure that the subject fluid achieved equilibrium. Total fluid volume (with visual observation of a single or two phase condition in the cell) is measured at each pressure stage, and subsequently, apressure-volume (P-V) plot is created identifying the phase state at each P-V condition. The intersection of the two lines plotted using the pressure and volume data above and slightly below the observed phase change corresponded to the measured saturation pressure of the fluid. In this manner, the P-V plot confirms the saturation pressure observed visually in the PVT cell. The measured pressure and volume data are then used to compute live oil compressibility above the bubblepoint pressure and relative oil volumes over the entire pressure range. t Differential Vaporization Procedure Subsequent to the completion of the CCE experiment, another sub-sample of the test fluid is charged to the PVT apparatus and the cell contents are then mixed with the magnetic mixer to allow for phase equilibration at the reservoir temperature and pressure conditions. A differential vaporization (DV) experiment is then conducted by incrementally reducing the pressure in the PVT cell in discrete steps. In these steps, the pressure is reduced below the saturation pressure, and hence, allowing the gas phase to evolve. A typical pressure stage in a DV test is described below: The pressure in the PVT cell is reduced to a pressure just above the bubblepoint pressure of the oil. This is the starting point of the DV test. The pressure of the fluid is then reduced to the first pressure stage (below the bubblepoint pressure) of the DV test allowing free gas to evolve. The magnetic mixer is then used to achieve equilibration between the free gas and the pressurized liquid. The evolved gas phase is then isobarically removed from the PVT cell into an evacuated pycnometer for gravimetric density and compositional analysis by the flash procedure (see Fluid Analysis Equipment Section) The previous two steps are repeated until either an atmospheric pressure or a predetermined abandonment pressure is reached. Mult!-Stage Separation Test • Oilphase-DBR Page 20 File200800119-B Client: BP Alaska Field: Prudhoe Bay Schlumber~er Well: L-205 Subsequent to the completion of the DV experiment, another sub-sample of the test fluid is charged to the PVT apparatus and the cell contents are then mixed with the magnetic mixer to allow for phase equilibration at the reservoir temperature and pressure conditions. A multi-stage separation experiment is then conducted by incrementally reducing the pressure and temperature conditions in the PVT cell in discrete steps. In these steps, the pressure is reduced below the saturation pressure, and hence, allowing the gas phase to evolve. A typical pressure stage in a separation test is described below: The pressure in the PVT cell is reduced to a pressure just above the bubblepoint pressure of the oil. This is the starting point of the separation test. The temperature of the PVT cell are then reduced to the first-stage separation test temperature and allowed the cell content to equilibrate. The pressure of the fluid is then reduced to the first pressure stage (below the bubblepoint pressure) of the separation test allowing free gas to evolve. The magnetic mixer is then used to achieve equilibration between the free gas and the pressurized liquid. The evolved gas phase is then isobarically removed from the PVT cell into an evacuated pycnometer for gravimetric density and compositional analysis by the flash procedure (see Fluid Analysis Equipment Section) The previous two steps are repeated in five stages to stock tank conditions. Liquid Phase Viscosity and Density Measurements During DV Step Prior to measuring the viscosity, a suitable size piston is selected with the proper viscosity range and the electromagnetic viscometer is calibrated using a fluid with known viscosity. • A portion of the live reservoir fluid used in the DV test is then transferred into ahigh-pressure high-temperature electromagnetic viscometer. The viscometer is initially evacuated and kept at the same temperature as that of the PVT cell. During the transfer of approximately 15 cc of live hydrocarbon liquid to the evacuated viscometer, flashing of oil takes place, and hence, the viscometer system is flushed with live oil twice to make sure a representative live oil sample is taken. Subsequent to transfer of live reservoir fluid into the viscometer, the fluid system is allowed to achieve thermal and pressure equilibration. Then, the viscosity reading is taken. Following the viscosity reading, incremental pressure reduction steps are repeated as those used in DV steps. At each pressure point, the piston was allowed to run back and forth for sufficient time to achieve pressure equilibration and allow the liberated gas to migrate vertically upwards and accumulate at the top of the carrier chamber. Experiments are also conducted independently using a PVT cell for phase equilibration. The viscosity measurements done on liquid sample transferred from the PVT cell after equilibration compares very well with the measurements done on liquid sample subjected to pressure steps within the viscometer. Stock-Tank Oil (STO/ Viscosity and Density Measurements A sample of STO is taken in a known capillary tube to measure the STO viscosity at a preset temperature. The temperature bath is maintained at the preset temperature. A small sample of the liquid is also transferred into the Anton Paar DMA45 densitometer to measure the density of the liquid phase. The viscosity and density measurements are repeated for data consistency check. Asphaltene, Wax and Sulfur Content Measurements • Oilphase-DBR Page 21 File200800119-B Client: BP Alaska Field: Prudhoe Bay Well: L-205 Schlumber~er Asphaltene content of stock-tank oil samples is conducted using the IP-143 (French Institute of Petroleum) procedure. In this procedure, the asphaltenes are characterized as the n-heptane insoluble fractions of the crude oil. Wax content of the STO is measured using UOP (Universal Oil Product) 46-64 procedure. The sulfur content of the STO is measured using ASTM D 2494 procedure.. All other STO analysis were measured according to industrial standards. SAR(PlA Analysis A spinning band distillation was carried out on the original sample to establish two fractions. The initial boiling point to 300°C fraction was then analysed using a supercritical fluid chromatographic (ASTM 5186-91) method to determine the saturates and aromatics content. The greater than 300°C fraction first subjected to a gravimetric analysis to determine the pentane insoluble content (asphaltenes-. This method dissolves the fraction in an equal weight of toluene, then 40 volumes of pentane were added to precipitate the insoluble portion of the sample. The precipitate was filtered, dried and weighed. The solvent was removed from the soluble portion of the sample, which was referred to as the maltenes. The maltenes were then redissolved in pentane and were chromatographically separated into saturates, aromatics and resins (polars) fraction by elution from a column filled with activated alumina, using various solvents and solvent mixtures. The solvents were then removed from each fraction and the amount of material weighed. The data from the three methods were combined to determine the amount of each component type in the original sample. Mass balances were calculated throughout the procedure to assure accurate data. High-Temperature High Pressure Filtration Test During the filtration process, it is important that the monophasic fluid remains monophasic as it passes through the filter manifold. Hence, high pressure nitrogen is used on the back side of the filter so that the equal pressure is maintained on both sides of the filter. This procedure prevents any flashing of the fluid in the filter manifold and assures filtration of a representative fluid. • • Oilphase-DBR Page 22 File200800119-B
