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205-153
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 direzc~t inspection of the file. p~, ©J - ~ ~ ~ Well History File Identifier Organizing (done) R SCAN Color Items: ^ Greyscale Items: ^ Poor Quality Originals: ^ Other: ..o„d~ iuimiiuiiuiiii DIGITAL DATA Diskettes, No. ~, ^ Other, No/Type: Re,~~~eee~ iiuuuiniiuuu OVERSIZED (Scannable) ^ Maps: ^ Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) ^ Logs of various kinds: NOTES: BY: Maria Date: ~~j ^ Other:: /s/ ~ Project Proofing III II IIII II III I I III BY: Maria Date: ~ / 5 ~ ~ /s/ / Scanning Preparation ~ x 30 = + O =TOTAL PAGES~~ ~ ~ ' ' (Count does not include cover sheet) ' /~ /~ ~ BY: Maria Date: ~ I. , /7 S~ lsl U ~/ / ' Production Scanning Stage 1 Page Count from Scanned File: (Count noes include cover sheet) Page Count Matches Number in Scanning Pre aration: ~ES NO BY: Maria Date: ~ ~ S O C7 /s/ '/~/~/ -Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO II BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. II I II ~I II I II II I I III ReScanned III (I'lII IIIII II III BY: Maria Date: /s/ Comments about this file: Quality Checked III II'III III III III ~4- 10/6/2005 Well History File Cover Page.doc ~~ ~~ ~~~~ DATA SUBMITTAL COMPLIANCE REPORT 2/6/2008 Permit to Drill 2051530 MD 11423 TVD REQUIRED INFORMATION Mud Log No Samples No Directional Surv Yes DATA INFORMATION Types Electric or Other Log s Run: MWD / GR / R ES / Aziuthal DEN / NEU /AIM / PWD (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH / Typ Med/Frmt Number Name Scale Media No Start Stop CH Received Comments D ; D Asc Directional Survey 0 11423 Open 12/7/2005 / _t~t ~ Directional Survey 0 11423 Open 12/7/2005 (,r~rD C Lis 15202 Induction/Resistivity 54 11423 Open 6/11/2007 LIS Veri, GR, ROP, FET ~ w/Graphics TIF ~ g 15202 Induction/Resistivity 2 Blu 6550 11423 Open 6/11/2007 MD Vision Service 15-Nov- _- 2005 Well Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comme nts ADDITIONAL INFORMATION Well Cored? Y ~ Daily History Received? / Chips Received? ~f?N'~ Formation Tops ~N Analysis ~`ttd'' Received? Comments: Compliance Reviewed By: __ ___ Well Name/No. PRUDHOE BAY UN ORIN L-250 L1 Operator BP EXPLORATION (ALASKA) INC. 4347 Completion Date 12/3/2005 Completion Status 1-OIL Current Status 1-OIL API No. 50-029-23281-60-00 UIC N Date: L_J Schtumierger Schlumberger-DCS 2525 Gambell St, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Well Job # Log Description NO.4292 Company: Alaska Oil 8 Gas Cons Comm Artn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Orion Borealis Date BL Color CD V-218 Z-102 11661147 11637125 MEMORY TEMP SURVEY CEMENT IMAGEIBOND LOG 05119107 OSI16107 1 1 V-04 40014377 OH EDIT MWDILWD 11128/06 2 1 V-214 L-250 V-122 V-122PB1 V-122PB2 40014206 40012593 40014531 40014531 40014531 OH EDIT MWD/LWD OH EDIT MWDILWD OH EDI7 MWD/LWD OH EDIT MWOILWD OH EDIT MWblLWD 10/30/06. 11109105 12130/06 12/16106 12/28/07 2 2 2 2 1 1 1 1 1 1 L-250L1 L-250P61 40012593 40012593 OH EDIT MWDILWD OH EDIT MWDlLWD 11/15105 10/26!05 1 2 1 1 L-04 40014142 OH EDIT MWDILWD 10109106 2 1 OWDW-NW 11477941 RST 11/14/06 } 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACf1 TO: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E Benson Blvd. Anchorage AK 99508-4254 Date Delivered: ~~s ~ ~~ # ~ ~~~c~ Schlumberger-DCS 2525 Gambell St, Suite 400 Anchorage. AK 99503-2838 ATTN: Beth Received by. 06/07/07 c " ; STATE OF ALASKA ~ ~~'vG~, ALASKIL AND GAS CONSERVATION COMIA~`SION ~;~--+- 2006 WELL COMPLETION OR RECOMPLETION REPORT AND LOG `"~ ~ $ ralas4ca Oii ~ Gas cflns. GttsEion Aerhnrsrfr~ 1a. Wetl Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended ^ WAG 20AAC 25.105 20AAC 25.110 ^ GINJ ^ WINJ ^ WDSPL No. of Completions One Other 1b. Well Class: ®Development ^ Exploratory ^ Stratigraphic ^ Service 2. Operator Name: BP Exploration (Alaska} Inc. 5. Date Comp., Susp., or Aband. 12/3/2005 12. Permit to Drill Number 205-153 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 11/12/2005 13. API Number 50-029-23281-60-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 11/15/2005 14. Well Name and Number: PBU L-250L1 2563 FSL, 3721 FEL, SEC. 34, T12N, R11 E, UM Top of Productive Horizon: 4896' FSL, 2462' FEL, SEC. 27, T12N, R11 E, UM g• KB Elevation (ft): 77.3' 15. Field /Pool(s): Prudhoe Bay Field 1 Orion Schrader Bluff Total Depth: 884' FSL, 2537' FEL, SEC. 22, T12N, R11 E, UM 9. Plug Back Depth (MD+TVD) 11423 + 4347 Ft 4b. Location of Well (State Base Plane Coordinates): Surface: x- 5 83195 y- 5978286 Zone- ASP4 10. Total Depth (MD+TVD) 11423 + 4347 Ft 16. Property Designation: ADL 047447 _ ~~-- ~~~~-~~ ~~--~~~~~-~- ^~~--`~~" TPI: x-__ 58_4352_ y- 5985911 Zone- ASP4 Total Depth: x- 584262 Y- 5987177 Zone- ASP4 11. Depth where SSSV set None MD 17. Land Use Permit: -'"---~- ~""--"""""-~"""- ----"""--~-~"°-_""""""-- _T"-"-"-"""~-""---- 18. Directional Survey ®Yes ^ No 19. Water depth, if offshore N/A MSL 20. Thickness of Permafrost 1900' (Approx.) 2i. Logs Run: MWD / GR / RES / Aziuthal DEN / NEU /AIM / PWD 2. ASING, INER AND EMENTING ECORD CASING.. ETTINQ EPTH MD ETTINO EPTH TVD '.HOLE OUNT $IZE WT, PER FT. GRADE OP TTOM OP TTOM S{ZE GEMENTfNQ RECORD PULLED 20"x34" 215.5# A-53 Surface 108' Surtace 108' 48" 60 sx Arctic Set A rox. 10-3/4" 45.5# L-80 29' 3354' 29' 2626' 13-1 /2" 89 sx AS Lfle, 482 sx'G', 175 sx AS LRe 7-518" 29.7# L-80 26' 6606' 26' 4301' 9-7/8" 36 sx Glass 'G' 4" x 4-1/2" 12.sai 15.1fF~,o.sa L-80 6601' 11273' 4300' 4356' 6-3/4" Uncemented Excluder Screens 4-1/2" 12.6# L-80 6349' 6574' 4233' 4294' N/A LEM Tieback No Cement 23. Perforations open to Produc tion (MD + TV D of Top and " " 24. TUBING RECORD Bottom Interval, Size and Number; if none, state none ): SIZE DEPTH SET (MD) PACKER SET (MD) 4" x 4-1/2" Screen Section 4-1/2", 12.6#, L-80 6356' 6240' MD TVD MD TVD 6932' - 11191' 4285' - 4357 25. ACID, FRACTURE,:. CEMENT: 50UEEZE, ETC. DEPTH INTERVAL MD AMOUNT Sc KIND OF MATERIAL USED Freeze Protect w/ 110 Bbls of Diesel 26• PRODUCTION TEST Date First Production: January 5, 2006 Method of Operation (Flowing, Gas Lift, etc.): Gas Lift Date of Test Hours Tested PRODUCTION FOR TEST PERIOD OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE GAS-OIL RATIO Flow Tubing PreSS. Casing Pressure CALCULATED 24-HOUR RATE OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-API (CORK) 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). Submit core chips; if none, state "none". None ~ ..., .~ ~ ~~ ~ <,tJ>,tJe~Ot~ b 60 h ~''1 K ~,.~ ~ ~ 7UD " a. ~'~~AS ~F~. ~~~ ~ ~ 2006 IFS Form 10- 4 12/2003 N I I I RFVFRRF 111'IF ~r i 28. GEOLOGIC MARKERS 29' ORMATION TESTS Include and briefly summarize test results. List intervals tested, NAME MD TVD and attach detailed supporting data as necessary. If no tests were conducted, state "None". Schrader Bluff NE 6614' 4303' None Schrader Bluff NE 6778' 4309' Schrader Bluff NC 6838' 4300' Schrader Bluff NB 10150' 4340' Schrader Bluff NB 10327' 4341' Schrader Bluff NB 11320' 4354' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. ~ Signed Title Technical Assistant Date /~7~~(0 Terrie Hubble PBU L-250L1 205-153 Prepared By NameMumber: Terris Hubble, 564-4628 Well Number Permit No. / A rove) No. Drilling Engineer: Michael Triolo, 564-5774 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. ITEM 1a: Classification of Service Wells: Gas injection, Water Injection, Water-Alternating-Gas Injection, Sait 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. ITEM 4b: TPI (Top of Producing Interval). ITEM S: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. ITEM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). ITEM 20: True vertical thickness. ITEM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 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). ITEM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). ITEM 27: If no cores taken, indicate "None°. ITEM 29: List all test information. If none, state °None" Form 10-407 Revised 1212003 Submit Original Only BP EXPLORATION. Page t ~f 1 Leak-Off Test Summary Legal Name: 1.-250 Common Name: L-250 Test Date Test Type Test Depth (TMD)' Test Depth (TVD) AMW Surface Pressure Leak Off"Pressure (BHP) EMW ' 11/2/2005 LOT 3,384.0 (ft) 2,631.0 (ft) 8.80 (ppg) 470 (psi) 1,673 (psi) 12.24 (ppg) 11/7/2005 FIT 7,449.0 (ft) 4,429.0 (ft) 9.20 (ppg) 300 (psi) 2,417 (psi) 10.50 (ppg) 1 Printed: 12/5/2005 11:10:39 AM BP EXPLORATION Page 1 of 22' Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10!24/2005 Event Name: DRILL+COMPLETE S#art: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 10/23/2005 06:00 - 09:00 3.00 MOB P PRE Move rig, well to well, around well row to L-250 09:00 - 12:00 3.00 MOB P PRE Spot sub base over L-250, lay mats & herculite for mud pits. 12:00 - 13:00 1.00 MOB P PRE Spot mud pits. 'Rig accepted for L-250 operations x'13:00 hr 10/23/2005 13:00 - 17:00 4.00 RIGU P PRE Change out i6" riser nipple to 20' adapter. NU surface diverter system and riser. 17:00 - 18:00 1.00 RIGU P PRE Prepare rig floor for picking up drill pipe. 18:00 - 23:00 5.00 RIGU P PRE Pick up 105 jts 4" HT-40 drill pipe and rack in derrick. Pick up 24 jts. 4' HT-40 HWDP and rack in derrick. 23:00 -00:00 1.00 A1GU P PRE Pick up BHA #1 jewelry from beaver slide. 10!24/2005 00:00 -00:30 0.50 RIGU P PRE Perform diverter function test. 'Witnessing of test waived by AOGCC rep. John Crisp" 00:30 - 03:00 2.50 RIGU P PRE Pick up, make up, 13 1/2" directional drilling assembly. 03:00 - 03:30 0.50 RIGU P PRE Fill hole, check for leaks. 03:30 - 07:00 3.50 DRILL P SURF Spud in L-250 ~ 03:30 hr 10/24/2005. Directionally drill 13 1/2" surface hole from 108' to 280'. 550 gpm., 700 psi on bottom, 425 psi off bottom, 5k WOB, 40 rpm, 1.5k torque, PU - 55k, SO - 53k, ROT - 54k. 07:00 - 12:00 5.00 DRILL N MISC SURF Flowline plugged off. POH to surface. Found chunks of conductor cement in flowline. Clear flowline and RIH to 280'. 12:00 - 12:30 0.50 DRILL P SURF Directionally drill 13 1/2" surface hole from 280' to 360'. 700 gpm, 1200 psi off bottom, 1320 psi on bottom, 60 rpm, 3k torque, 25k WOB. 12:30 - 13:00 0.50 DRILL P SURF POH from 360' to 171'. Pick up jar stand and RIH. 10' fill. 13:00 -00:00 11.00 DRILL P SURF Directionally drill 13 112" surface hole from 360' to 1,191'. 700 gpm, 2,000 psi off bottom, 2,170 psi on bottom, 60 rpm, 2k torque off bottom, 5k torque on bottom, 25k WOB. PU - 79k, SO - 71 k, ROT - 73k. AST - 5.08 hrs, ART - 5.72 hrs 10/25/2005 00:00 - 07:00 7.00 DRILL P SURF Directionally drill 13 1/2" surface hole from 1,191' to 1,656'. 700 gpm, 2,350 psi off bottom, 2,500 psi on bottom, 60 rpm, 3k torque off bottom, 5k torque ort bottom, 35k WOB. PU - 82k, ~ SO - 71 k, ROT - 74k, AST - 4.3, ART - 2.34. 07:00 - 08:00 1.00 DRILL P SURF Circulate 2X bottoms up. 08:00 - 10:00 2.00 DRILL P SURF RU and RIH with Gyrodate gyro and survey every 100' to 1,500'. RD Gyrodata. 10:00 - 13:30 3.50 DRILL P SURF Monitor well -stable. POH from 1,656'. PU - 90K, SO - 60K. Work through tight spots from 1,052' to 973' and at 790', 580', 525', 425' using pumps as needed. Stand back BHA components and break out the 13-1/2' bit. 13-1/2' MXC-1 graded: 3/5/WT/AIE/1 /RG/BHA. 13:30 - 14:00 0.50 DRILL P SURF MU new 13-112' MXGi, adjust motor bend to 1.5 degrees, orient with MW D and RIH with BHAff2 to 78'. 14:00 -14:30 0.50 DRILL P SURF Lubricate rig, top drive and crown. 14:30 -17:00 2.50 DRILL P SURF RIH to 109'. Break corutiection between the first and second collar and install a stabilizer. RIH. Hit obstruction and pump down from 720' to 1,100' - 700 gpm, 2,050 psi. RIH without pumps from 1,100' to 1,566. Precautionary wash and ream the last stand down to 1,656'. 17:00 - 21:00 4.00 DRILL P SURF Drill ahead directionally from 1,656' to 2,126' - PU - 95K, SO - 67K, ROT - 78K, 80 rpm, TQ on - 5k, TQ off • 3k, 2,900 psi on, 2,730 psi off. Encountered hydrates at -1,900' MD. 21:00 -22:00 1.00 DRILL P SURF POH 1 stand. Hydrates breaking out in the pits caused the FriMee: 12/5!2005 rr:~aasa~ BP EXPLORATION Page 2 of 22 Operatiolns Sulmlmary .Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10!2312005 End: 12/312005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT -Phase Description of Operations 10!25!2005 21:00 - 22:00 1.00 DRILL P SURF mud pump, desilter pump and mix pump to lock up. Work to get the equipment back to working efficiently. Circulate to ensure proper operation of surface equipment. 22:00 -00:00 2.00 DRILL P SURF Drill ahead directionally from 2,126' to 2,312' - PU - 95K, SO - 67K, ROT - 78K, 80 rpm, TQ on - 5k, TO off - 3k, 2,900 psi on, 2,730 psi off. From noon to midnight: AST - 1.1, ART - 2.45. 10/26/2005 00:00 - 06:30 6.50 DRILL P SURF Drill ahead directionally from 2,312' to 3,340' (TD) - PU - 103K, SO - 70K, ROT - 84K, 80 rpm, TQ on - 9k, TO off - 5k, 3,180 psi on, 2,830 psi off, AST - 1.65, ART - 3.66. 06:30 - 08:00 1.50 DRILL P SURF Circulate 3X bottoms up -680 gpm, 3,320 psi, 100 rpm. 08:00 - 11:00 3.00 DRILL P SURF Monitor the well -stable. POH from 3,340' - PU - 112K, SO - 72K. Encountered 40K overpull at 1,872'. Work pipe without pumps to get past - no go. Pump out from 1,872' to 1,800' - 330 gpm, 700 psi. POH without pumps from 1,800' to 1,675'. Encountered 40K overpuil. Attempt to work by without pumps - no go. Pump out of the hole from 1,675' to 1,657' -hole pulling tight, 40K overpuli. 11:00 - 12:00 1.00 DRILL N STUC SURF Attempt to move the pipe down - no go. Torque up on the pipe and attempt to move the pipe down with pumps, 200 gpm, 790 psi - no go. Attempt to jar down without success. Starting to pump mud away. Lost 70 bbls for the tower. 12:00 - 19:30 7.50 FISH N STUC SURF Commence jarring operations. Jar up with 240K and SO to 40K - no success. Pump occasionally to check for returns - lost 20 bbis during the tower. 19:30 - 21:00 1.50 FISH N STUC SURF Inspect the derrick after jarring operations -good. Changeout to long bails. 21:00 -00:00 3.00 FISH N STUC SURF PJSM with Schlumberger E-line. RU rig floor to run Free Point Locator Tool. 10!27/2005 00:00 - 02:00 2.00 EVAL N STUC SURF Run SLS Free Point Locator Tool. Drilllstring appears to be free across the NMDC below the 9-7/8" Stab. POH. LD FPT. 02:00 - 06:00 4.00 FISH N STUC SURF String Shot #i: MU 240 grain string shot and RIH. Apply 1-1l4 turns to the left in the pipe while making up the string shot and lock in place. Fire string shot across connection at 1,548' - between 9-7/8' Stab and NMDC below the 9-7/8" stab -did not release. POH with E-line for another string shot. 06:00 - 08:00 2.00 FISH N STUC SURF String Shot #2: MU 480 grain string shot and RIH. Apply 1-1/4 turns to the left in the pipe and lock in place. Fire string shot across connection at 1,548' -between 9-7/8' Stab and NMDC below the 9-7/8' stab -did not release. POH with E-line for another string shot. 08:00 - 10:00 2.00 FISH N STUC SURF String Shot #3: MU 480 grain string shot and RIH. Position string shot across connection at 1,512' -between the NMDC's above the 9-7/8" stab. Apply 1-1/4 toms to the left in the pipe - string broke blind prior to firing string shot. POH and LD string shot #3. Engage the top drive and retorque drill string. 10:00 -12:00 2.00 FISH N STUC SURF String Shot #3: MU 480 grain string shot and RIH. Apply 1-1/4 toms to the left in the pipe and lock in place. Fire string shot across connection at 1,512' - between the NMDC's alwve the 9-7/8" stab -did not release. POH with E-tine for another string shot. 12:00 - 13:30 1.50 FISH N WAIT SURF Wait on more primer cord to be brought out for string shots. 13:30 - 15:00 1.50 FISH N STUC SURF String Shot ff4: MU 560 grain string shot and RIH. Apply 1-1/4 toms to the left in the pipe and lock in place. Fire string shot Printed: 12/5/2005 11:10:45 AM BP EXPLORATION Page 3 of 22° Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 10/27/2005 13:30 - 15:00 1.50 FISH N STUC SURF across connection at 1,512' -between the NMDC's above the 9-7/8" stab -did not release. POH with E-line for another string shot. 15:00 - 16:00 1.00 FISH N STUC SURF String Shot #5: MU 560 grain string shot and RIH. Apply 1-1/4 turns to the left in the pipe and lock in place. Fire string shot across saver sub at 1,479' -string backed off. POH with E-line. Rotate 5 turns to the left to finish backing out the connection - PU - 90K. 16:00 - 17:00 1.00 FISH N STUC SURF Circulate bottoms up at 1,451' - 715 gpm, 1,600 psi. 17:00 - 18:30 1.50 FISH N STUC SURF POH with 1 stand breaking each connection and re-doping to 1,389'. RD Schlumberger E-line. Change out to short bails. 18:30 - 22:00 3.50 FISH N STUC SURF POH from 1,389' breaking each connection and re-doping - recovered drill string down to the jar stand. BHA#2 remains in the ground from the saver sub to the bit. 22:00 - 23:00 1.00 FISH N STUC SURF PU fishing tools to the rig floor. 23:00 -00:00 1.00 FISH N STUC SURF RU the rig floor and top drive to PU Fishing BHA. 10!28!2005 00:00 - 03:30 3.50 FISH N STUC SURF PU Fishing BHA components and RIH. Fishing BHA: cut lip guide shoe, drive sub, xo, 2 x bumper sub, jars, xo, 6 x 8" collars, xo, accelerator jar, xo, 9x6-3/4' collars.. 03:30 - 08:30 5.00 FISH N STUC SURF RIH with Fishing BHA while PU 5' DP. Ran into tight spot at 1,05i'. Wash and ream down to 1,082' -540 gpm, 500 psi, 45 rpm, TO - 3K. 08:30 - 12:00 3.50 FISH N STUC SURF POH from 1,108' to 985'. Hole pulling tight. Run back in the hole to 1,108' and ream out to 980' - 220 gpm, 30 rpm, PU - 95K, SO - 88K. POH from 980' standing back DP and collars. LD Fishing BHA. 12:00 - 16:30 4.50 FISH N STUC SURF MU Cleanout BHA and RIH on 5' DP. Cleanout BHA: used 13-1l2° MXC-1, near bit stab, xo, bumper sub, jar, xo, 6 x 8" DC's, xo, 9 x 6-3/4' DC's. Started to take weight at 991'. Ream down to 1,147` - PU - 90K, SO - 80K, ROT - 87K, 60 rpm, 700 gpm, 1,150 psi -suspect open hole sidetrack of the well. 16:30 - 17:30 1.00 FISH N STUC SURF Circulate bottoms up at 700 gpm, 1,150 psi. 17:30 - 21:00 3.50 FISH N STUC SURF " POH standing back 5" DP and LD Cleanout BHA. 21:00 -22:00 1.00 FISH N STUC SURF Clear and clean the floor. 22:00 - 23:00 1.00 STKOH N STUC SURF Change out the quill, service the top drive and crown. 23:00 - 23:30 0.50 STKOH N STUC SURF Arrange DP in the derrick. 23:30 -00:00 0.50 STKOH N STUC SURF PU 5" DP and stand back in the derrick. 10!29/2005 00:00 - 02:30 2.50 STKOH N STUC SURF PU 5" DP and stand back in the derrick. 02:30 - 05:30 3.00 STKOH N STUC SURF MU BHA#5 and RIH. BHA#5: 13.5' MXC-1, 9.5" motor 4.5 stg 3R/4S 1.5 degree, nm lead collar, 12.25' nm stab, MWD, 12.25' nm stab, nm xo, nm dc, nm stab, 2 x nm dc's, saver sub, i x hwdp, jar, 16 x hwdp. 05:30 -06:00 0.50 STKOH N STUC SURF RIH with BHA#5 on 5' DP from 730' to 1,147'. 06:00 - 07:00 1.00 STKOH N STUC SURF Circulate and cxmdition the mud -300 gpm, 475 psi. 07:00 - 18:30 11.50 STKOH N STUC SURF Drill 13.5" directionally as an open hole sidetrack from 1,147' to 3,364'(TD). PU - 115K, SO - 81 K, ROT - 95K, 80 rpm, 700 gpm, 2,300 psi on, 1,950 psi off, 9K TQ on, 5K TQ off, AST - 3.68, ART - 4.03. Observed hydrates from 1,800' to T0. 18:30 - 20:30 2.00 STKOH N STUC SURF Circulate 3 x bottoms up - 100 rpm, 700 gpm, 1,850 psi, 5.5K TO. 20:30 - 21:45 1.25 STKOH N STUC SURF POH standing back 5' DP from 3,364' to 1,770' - MW in - 9.5 ppg, MW out - 9.6 ppg. Hole starting to swab. Prm~ea: ~ysi2oos ri:~aasane BP EXPLORATION Page 4 of 22 Operations Summary Report. Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 10/29/2005 21:45 - 22:00 0.25 STKOH N STUC SURF Pump out of the hole from 1,770' to 1,657' due to hole trying to swab - 700 gpm, 1,550 psi. 22:00 - 00:00 2.00 STKOH P SURF Pump out of the hole from 1,657' to 730' due to hole trying to swab - 700 gpm, 1,550 psi. 10/30/2005 00:00 - 01:30 1.50 STKOH P SURF RIH from 730' to 3,364'. Precautionary wash and ream the last stand to bottom. Worked pipe with pumps on at 975' and from 1,100' to 1,150' - 575 gpm, 1,000 psi. Worked pipe without pumps from 1,540' - 1,610', 1,740' - 1,760' and 1,800' - 1,810'. 01:30 - 02:00 0.50 STKOH P SURF Circulate and condition the hole - 700 gpm, 1,800 psi, 80 rpm, 6k TO. 01:00 - 02:00 1.00 STKOH P SURF Set cocks back one hour due to daylight savings time. Continue to circulate and condition the hole - 700 gpm, 1,800 psi, $0 rpm, 6k TO. 02:00 - 03:15 1.25 STKOH P SURF POH standing back 5" DP from 3,364' to 1,840'. 03:15 -06:30 3.25 STKOH P SURF Hole started to pull -40K over and swab. Backream out of the hole from 1,840' to 730' - 700 gpm, 1,500 psi, 80 rpm, 4k TO. 06:30 - 08:00 1.50 STKOH P SURF LD BHA#5. 13-1/2" MXC-1 graded: 2/1/V1IT/M/E/1/NO/TD 08:00 - 08:30 0.50 STKOH P SURF Clean and clear the floor. 08:30 - 10:00 1.50 STKOH P SURF Change out the top drive saver sub to HT-40. 10:00 - 12:00 2.00 CASE P SURF Change over to long bails and RU the fill-up tool, RU casing handling equipment and make a dummy run with hanger - good. 12:00 - 15:00 3.00 CASE P SURF PJSM. PU 10-3/4" float equipment, Bakerloc connections and RIH. Check floats -holding. PU 10-3/4' 45.5# L-80 BTC casing and RIH to 1,330' -hit obstruction. 15:00 -00:00 9.00 CASE P SURF Hit obstruction at 1,330'. Attempt to work past obstruction without pumps -unsuccessful. Work pipe with pumps on to 1,393' - 425 gpm, 600 psi, PU - 100K, SO - 82K. 10/31/2005 00:00 - 10:00 10.00 CASE P SURF Continue to work pipe from 1,393' to 1,506' - 425 gpm, 600 psi. RIH without pumps from 1,506' to 1,676'. Work pipe from 1,676' to 3,354' -336 gpm, 343 psi. 10:00 - 10:30 0.50 CASE P SURF Grculate and condition the mud through the fillup tool - 420 " gpm, 560 psi. Reciprocated white circulating, PU - 195K, SO - 100K. 10:30 - 11:00 0.50 CASE P SURF RD the fitlup tool and RU the cement head. 11:00 - 13:00 2.00 CASE P SURF Circulate and condition the mud. - 460 gpm, 780 psi. Reciprocated while circulating, PU - 195K, SO - 100K. 13:00 - 16:15 3.25 CEMT P SURF Hold PJSM. Line up to Schlumberger and pump 5 bbls of water ahead. Shut down and pressure test the lines to 3,500 psi. Bleed off pressure. Attempt to reciprocate -unsuccessful. Land casing on the ring. Pump 20 bbls of CW 100. Shut down and batch up 10.1 ppg Mudpush 11 spacer. Pump 70 bbls of spacer at 7 bpm, ICP -330 psi, FCP -350 psi. Shut down, drop bottom plug and batch 10.7 ppg ArcticSet Lite lead slurry. Pump 551 bbls of lead cement at 8.4 bpm, ICP -500 psi, FCP - 640 psi. Batch up 15.8 ppg Gass G tail slurry. Pump 99.5 bbls of tail slurry at 5 bpm, ICP -660 psi, FCP - 740 psi. Shut down, drop top plug and displace with 10 bbls of fresh water. Shut down and swap lines from Schlumberger to the rig. Displace with mud using the rig at 12 bpm, ICP -900 psi. Dropped rate to 4 bpm and bumped the plug to 2,000 psi with 305 bbls pumped and 97% efficiency. Check floats -holding. Had full returns throughout the cement job. NO CEMENT TO Printed: 12/5/2005 11:10:45 AM BP EXPLORATION ,Page 5 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code- NPT Phase Description of Operations 10/31/2005 13:00 - 16:15 3.25 CEMT P SURF SURFACE. CIP ~ 1548 10/31/2005. 16:15 - 18:00 1.75 CASE P SURF RD casing handling equipment, changeout to short bails and changeout the quill on the top drive. 18:00 - 21:00 3.00 CEMT P SURF MU TAM port collar shifting tool and RIH to 1,000' on 5" DP. Activate the sliding sleeve and expose the circulation ports. 21:00 - 00:00 3.00 CEMT P SURF Circulate and condition the mud - 9 bpm, 155 psi. Wait for materials for 2nd stage cement job. No cement circulated to surface while circulating through the port collar. 11/1/2005 00:00 -00:30 0.50 CEMT P SURF Hold PJSM. Line up to Schlumberger and pump 5 bbls of water ahead. Shut down and pressure test the lines to 3,500 psi. Bleed off pressure. Pump 15 bbls of fresh water. Shut down and batch 10.7 ppg ArcticSet Lite slurry. Pump 140 bbls of lead cement at 7 bpm, ICP - 220 psi, FCP -333 psi. Drop rate to 4 bpm after 96 bbls pumped due to thick, contaminated mud returning to surface, ICP - 140, FCP - 150. Chase the cement with 5 bbls of fresh water to clear the cementing lines. Shut down and swap lines from Schlumberger to the rig. Displace with 15 bbls of mud using the rig at 7 bpm, FCP - 400 psi. Had full returns throughout the cement job. 25 bbls of cement returned to surface. CIP ~ 0030 11/1/2005. 00:30 - 02:30 2.00 CEMT P SURF PU and close the TAM port collar. Verify closure with 1,000 psi pressure test while running tool still across port collar. Apply 3/4 turn to the right and PU out of the collar. Pressure up and shear the burst disc at 2,400 psi. Observe pressure drop off. Attempt to circulate -unsuccessful -observe pressure increase to 3,100 psi. POH wet standing back 5" DP. LD TAM port collar running tool. Tool appeared to be plugged below the circulation ports. 02:30 - 03:00 0.50 CEMT P SURF MU mule shoe and RIH with 5" DP to 1,030'. 03:00 - 04:00 1.00 CEMT P SURF Circulate the 5° DP and the casing clean - 650 gpm, 150 psi. 04:00 - 05:00 1.00 CEMT P SURF LD 5" DP from 1,030'. 05:00 - 07:30 2.50 CASE P SURF MU i 0-3/4" casing pup to the split landing joint. Attempt to breakout the landing joint with chain tongs -unsuccessful. RU casing tongs and attempt to breakout landing joint - unsuccessful. RD casing tongs and RU rig tongs. Breakout and LD the landing joint. 07:30 - 08:30 1.00 CASE P SURF Clean underneath the rotary table and drain surface lines. 08:30 - i 1:00 2.50 BOPSU P SURF ND riser and changeout 20' riser nipple to 16". ND diverter system and secure in the cellar. 11:00 - 12:00 1.00 WHSUR P SURF Bring wellhead equipment into the cellar area. 12:00 - 17:00 5.00 BOPSU P SURF Install speed head and tubing spool. Test to 1,000 psi -good. Install secondary annulus valves. NU BOP stack and riser. Flush stack. 17:00 - 17:30 0.50 BOPSU P SURF RU BOP testing equipment. 17:30 - 20:30 3.00 BOPSU P SURF Test BOPE and related equipment to 250 psi k~wr arxi 3,500 psi high. No failures during the test. Test was witnessed by Jeff Jones of the AOGCC, Nabors Rig Supervisor Roy Hunt and BP Wellsite Leader James Franks. 20:30 - 21:00 0.50 BOPSU P SURF Blow down all surface lines and RD testing equipment. Install wear ring. 21:00 - 22:00 1.00 DRILL P SURF RIH with 5' DP and HWDP from the derrick. 22:00 -00:00 2.00 DRILL P SURF LD 5' DP and HWDP. 11/2/2005 00:00 - 01:00 1.00 DRILL P SURF Continue to LD 5" DP. Printetl: 12/5!2005 11:10:45 AM BP EXPLORATION Page 6 of 22 Operations~Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date. From - To Hotars Task Code NPT Phase Description of Operations 11/2/2005 01:00 - 02:00 1.00 DRILL P INT1 PU 4" DP and RIH. 02:00 - 02:30 0.50 DRILL P INT1 Stand back 4" DP in the derrick. 02:30 - 09:00 6.50 DRILL P INT1 PJSM. MU BHA#6. Orient the MWD. Hold PJSM prior to loading nuclear source. RIH with BHA and rotate at 8 rpm to get past the TAM port collar at 1,000'. RIH to 1,095'. Flow test the MWD ~ 600 spm, 1,032 psi -good. Test the 10-3/4" casing to 1,000 psi to verify the port collar is closed. BHA #6: 9-7l8" Hycalog DSX199GUW, 8-1/4" motor 4R/5S 5.3 stg 1.5 degree, xo nm stab, ARC, MWD, ADN, nmdc, LWD (Sperry MIRL), 1 x 5" HWDP, jar, 1 x 5" HWDP, xo, 24 x 4" HWDP. 09:00 - 10:00 1.00 DRILL P INT1 Slip and cut drilling line. Inspect brakes. Service the top drive. 10:00 - 13:00 3.00 DRILL P INT1 RIH with BHA#6 on 4" DP to 2,031'. Crossover and add Weatherford Ghost Reamer.to the drillstring. Crossover and continue to RIH with 4" DP from the derrick to 3,160'. 13:00 - 14:00 1.00 CASE P SURF RU to test 10-3/4" 45.5# L-80 BTC surface casing. Pressure test casing to 3,500 psi -chart and hold for 30 minutes -good test. 14:00 - 14:30 0.50 DRILL P INT1 Wash down from 3,160' and tag cement at 3,248'. Drill out the float equipment and 20' of new hole to 3,384' - PU - 115K, SO - 62K, 550 gpm, 1,150 psi, 60 rpm. 14:30 - 15:30 1.00 DRILL P 1NT1 Displace the well over to new 8.8 ppg LSND drilling fluid. 15:30 - 16:00 0.50 DRILL P INT1 Place the bit inside the surface casing shoe at 3,354'. Conduct an LOT of the surface shoe with 8.8 ppg fluid, 470 psi surface pressure fora 12.24 ppg EMW LOT. 16:00 -00:00 8.00 DRILL P INT1 Drill 9-7/8" directionally from 3,384' to 4,371'. PU - 125K, SO - 75K, ROT - 88K, 80 rpm, 580 gpm, 2,050 psi on, 1,800 psi off, TO on - 8K, TO off - 5K, AST - 1.77, ART - 3.31. f 1/3/2005 00:00 - 12:00 12.00 DRILL P INT1 Drill 9-7/8' directionally from 4,371' to 5,956'. PU - 140K, SO - 84K, ROT - f 04K, 80 rpm, 590 gpm, 2,390 psi on, 2,275 psi off, TQ on - 8K, TQ off - 5K, AST - 2.38, ART - 5.88. Pumped " a high visc sweep at 5,125' -returned -10°k additional cuttings. 12:00 -00:00 12.00 DRILL P INT1 . Drill 9-718' directionally from 5,956 to 6,890'. PU -122K, SO - 87K, ROT - f 05K, 80 rpm, 590 gpm, 2,480 psi on, 2,260 psi off, TQ on - 8K, TQ off - 5K, AST - 7.08, ART - 2.48. Pumped a high visc sweep at 6,000' -returned -25°~ additional cuttings. 11/4/2005 00:00 - 05:00 5.00 DRILL P INTi Drill 9-7/8" directionally from 6,890' to 7,429' (TD). PU - 130K, SO - 90K, ROT - 102K, 80 rpm, 590 gpm, 2,700 psi on, 2,2570 psi off, TQ on - 7K, TO off - 5K, AST - 2.13, ART - 1.68. 05:00 -05:30 0.50 DRILL P INT1 Circulate open hole volume, 9.2 ppg fluid going in and coming out. 05:30 -06:00 0.50 DRILL P INT1 Drop 2-3/8" hollow rabbit and circulate down at 230 gpm, 770 psi. 06:00 - 15:00 9.00 DRILL P INT1 MAD pass log from 7,429' to 5,760' -585 gpm, 2,500 psi, 80 rpm, 6k TQ. 15:00 - 19:00 4.00 DRILL P INTi Backream from 5,760' to 3,354' (surface casing shoe) -585 gpm, 2,300 psi, 80 rpm, 6k TQ. 19:00 - 19:30 0.50 DRILL P INT1 Circulate and condition mud at the casing shoe - 585 gpm, 1,800 psi, 80 rpm, 4k TO. 19:30 - 21:00 1.50 DRILL P INT1 POH standing back 4' from 3,354' to 266'. 21:00 -00:00 3.00 DRILL P INT1 PJSM. LD BHA#6. LD 1 x 5" HWDP, jar and 1 x 5" HWDP. Download Sperry MRIL and LD. LD nm dc. Remove nuclear Printed: 12/5/2005 7 7:10:45 AM BP EXPLORATt~N Page 7 of 22 Operations Summary Report.. Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10!24!2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Re{ease: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 11/4/2005 21:00 -00:00 3.00 DRILL P INT1 source. LD ADN, MWC, ARC, nm stab, xo, motor and 9-7/8" bit. 9-7/8" Hycalog DSX199GUW graded: 1 /3M/T/A/X/UCT/TD. 11/5/2005 00:00 -00:30 0.50 DRILL P INTi Clean and clear the floor. 00:30 -06:00 5.50 EVAL P INT1 PJSM. RIH with 45 sidewall coring barrels on 4" DP to 5,200'. Break circulation every 1,000' in casing and every 5 stands in OH. 06:00 - 08:00 2.00 EVAL P INT1 RU side-door entry sub and wireline on rig floor. RIH with wireline arxi latch up. Function test wireline tools -good. 08:00 - 10:00 2.00 EVAL P INTi RIH with SWC and wireline on 4' DP from 5,200' to 7,200'. 10:00 - 12:00 2.00 EVAL P INT1 Correlate 5WC with logs from 7,200' to 7,023'. RIH to 7,278'. 12:00 - 14:30 2.50 EVAL P INTi POH from 7,278' taking sidewall cores - 1st shot taken at 7,228', 45th shot taken at 5,406'. Log out of the hole to 5,223'. 14:30 - 15:30 1.00 EVAL P INTi POH with wireline and RD wireline tools on the rig floor. 15:30 - 17:30 2.00 EVAL P INTi Circulate and condition the hole - 210 gpm, 290 psi, 9.2 ppg mud going in and coming out. 17:30 - 20:00 2.50 EVAL P INT1 POH standing back the 4" DP and 4" HWDP. 20:00 - 20:30 0.50 EVAL P INT1 LD gamma ray tool and sidewall cores. Recovered 45 core barrels and 43 of 45 samples -one misfire and one barrel filled with mud. 20:30 - 23:00 2.50 BOPSU P INT1 Drain the BOP stack and flush with water. Pull wear ring and install test plug with landing joint. Change out the top set of rams to 7-5/8" and test to 250 psi low / 3,500 psi high -good. RD testing equipment and pull test plug. 23:00 - 23:30 0.50 CASE P INT1 PU landing joint and casing hanger. Make a dummy run and mark pipe. LD landing joint and casing hanger. 23:30 -00:00 0.50 CASE P INT1 RU the rig floor to run 7-5l8" casing. Changeout to long baits. 11/6/2005 00:00 - 01:30 1.50 CASE P INT1 RU the rig floor to run 7-5/8" casing. 01:30 - 20:00 18.50 CASE P INT1 Hold PJSM. PU 7-5/8" 29.7# L-80 BTC-M shoe track and RIH. Bakeriok all shoe track connections. Check floats • holding. PU 7-5/8' 29.7# L-80 BTC-M casing joints and RIH. Space out pups and run centralizers per running order. Utilize BOL NM " thread lubricant and torque to mark with 8,000 ftlbs. Fili every joint while running in. Break circulation for 5 minutes every 10 joints while in the casing and for 15 minutes every 15 joints in the open hole. Circulate a bottoms up at 5,547' - 250 gpm, 388 psi. Land hanger with float shoe ~ 7,418' - PU - 200k, SO - 115k. Float shoe: 7,418' Float collar: 7,332' Top of L1 window joint: 6,589' L1 RAT tag: 6,547' Top of L2 window joint: 6,379' L2 RAT tag: 6,337' Ran a tote! of 179 joints of 7-5l8" 29.7# L-80 BTC-M casing, 97 centralizers and 31 stop rings 20:00 - 20:30 0.50 CASE P INT1 LD the Franks fillup tool and RU the Schlumberger double plug cement head. 20:30 - 21:30 1.00 CEMT P INTi Circulate and condition mud for cement job. Reciprocate pipe while circulating. 21:30 -00:00 2.50 CEMT P INT1 Hold PJSM with Schlumberger and rig personnel. Continue to Printed: 12/5/2005 11:10:45 AM BP EXPLORATION Page,8 of 22 Opera#ions Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24!2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task.. Code NPT Phase Description of Operations 11/6/2005 21:30 - 00:00 2.50 CEMT P INTi circulate while Schlumberger batched up cement. Continue to reciprocate. 11/7/2005 00:00 - 02:00 2.00 CEMT P INTi Line up to Schlumberger and pump 5 bbis of fresh water ahead. Shut down and pressure test the lines to 3,500 psi - good. Pump 25 bbis of CW i 00 followed by 50 bbis of 10.5 ppg Mudpush II spacer at 4 bpm, ICP -220 psi, FCP - 175 psi. Drop bottom plug. Chase plug with 69 bbis of 15.8 ppg Gasblok slurry at 5 bpm, ICP - 270 psi, FCP - 200 psi. Switch to 16.5 ppg DuraSTONE on the fly and pump 67 bbis at 6 bpm -ICP - 260 psi, FCP - 250 psi. Shut down and drop the top plug. Kick the plug out with 10 bbls of fresh water. Shut down and pump remainder of displacement with the rig pumps. Pumped seawater at 7 bpm, ICP - 100 psi, FCP - 800 psi. Reduce rate to 4 bpm after 294 bbis pumped, ICP - 600 psi, FCP - 700 psi. Reduced rate to 2 bpm after 326 bbis pumped, ICP - 650 psi, FCP - 700 psi. Bumped the plug with 332 bbls of seawater, 95% efficiency and with 2,000 psi -hold for 5 minutes. Bleed off pressure and check floats -holding. Good lift and full returns seen throughout entire job. Pipe was reciprocated until 276 bbis into the displacement when it was landed on the hanger. Cement in place on 11/7/2005 ~ 0145 hours. 02:00 - 03:30 1.50 CEMT P INT1 LD the cement head and the landing joint. Flush stack. Change long bails to short bails. RD casing handling equipment. Clean and clear the rig floor. 03:30 -04:30 1.00 CASE P INTi Install packoff and test to 5,000 psi -good. 04:30 -06:30 2.00 BOPSU P INT1 Changeout the top rams from 7-518" to 3-112" x 6" variables. RU testing equipment. Test door seals to 3,500 psi. RD testing equipment. 06:30 - 07:00 0.50 DRILL P PRODi Hold PJSM to pick up BHA#7 -6-314" BHA. 07:00 -09:30 2.50 DRit_L P PRODi MU BHA#7 and RIH. BHA components: 6-3/4" Hycalog DS146, 4-314" AIM motor - 1.5 degree - 4R/5S - 6 stg, bypass sub with float, nm stab, MWD/LWD, PWD, ADN, 2 x nm dc's, " circ sub, xo, 1 x 4' DP, jars and 1 x 4" DP. 09:30 - 12:00 2.50 DRILL P PROD1 PU 4" DP singles and RIH with BHA#7 to 2,383'. Simops: Perform LOT down the 7-5/8" x 10-3/4" annulus - 12.09 ppg EMW. Inject 135 bbls of 9.2 ppg LSND drilling fluid to clear the annulus - 3 bpm, 600 psi. 12:00 - 15:00 3.00 DRILL P PROD1 PU 4' DP from 2,383' to 6,199'. 15:00 - 15:30 0.50 DRILL P PROD1 RIH with BHA#7 on 4' DP from the derrick. 15:30 - 16:30 1.00 CASE P PROD1 Line up and pressure test the casing to 3,500 psi. Chart and hold for 30 minutes -good test. 16:30 - 17:30 1.00 DRILL P PROD1 Cut and slip drilling line. Inspect brakes. Service and lubricate the top drive. 17:30 -18:00 0.50 DRILL P PROD1 Ready the rig floor for MOBM. 18:00 - 19:00 1.00 DRILL P PROD1 Wash down and tag up on cement at 7,273'. Drill cement and shoe track down to 7,414' - PU - 160k, SO - 80k, TO - 8.5k, 290 gpm, 60 rpm, 1,880 psi. 19:00 - 20:30 1.50 DRILL P PROD1 Pump 50 bbis spacer and displace the well over to 9.2 ppg MOBM. 20:30 - 21:00 0.50 DRILL P PROD1 Drill remainder of the shoe track, rathole and 20' of new formation to 7,449' Printed: 12/5/2005 11:10:45 AM BP EXPLORATION Page 9 ofi 22' Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10!23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT' Phase Description of Operations 11!7/2005 21:00 - 21:30 0.50 DRILL P PROD1 Circulate and condition fluid. Pull bit inside the casing shoe at 7,418'. 21:30 -22:00 0.50 DRILL P PROD1 Perform FIT with 9.2 ppg MOBM fluid, 300 psi surface pressure and 4,429' TVD for 10.5 ppg EMW. 22:00 - 23:00 1.00 DRILL P PROD1 Circulate and obtain baseline ECD readings -calculated ECD - 10.14 ppg, actual ECD - 10.13 ppg. 23:00 - 00:00 1.00 DRILL P PROD1 Drill 6-3/4" hole directionally from 7,449' to 7,508', PU - 125k, SO - 90k, ROT - 100k, TO - 4k, 290 gpm, 2,655 psi on, 2,500 psi off. AST - 0.35, ART - 0.15. 11/8/2005 00:00 -00:00 24.00 DRILL P PROD1 Drill 6-3/4" hole directionally from 7,508' to 9,092', PU - 140k, SO - 60k, ROT - 100k„ 60 rpm, TO - 5.9k, 301 gpm, 2,925 psi on, 2,560 psi off. AST - 9.13, ART - 4.12. CECD - 10.23, AECD - 10.81. Crossed unexpected 20' fault ~ 8,567' MD, 4,437' TVD. Drilled out of OA top ~ 8,777' MD, 4,443' TVD. Tum down and drill ahead per Geology to find and confirm top of OA. Simops: Freeze Protect the 7-5/8" x 10-3/4" annulus with 105 bbts of dead crude, 11/9/2005 00:00 - 01:00 1.00 DRILL P PROD1 Drill 6-3/4" hole directionally from 9,092' to 9,186', PU - 143k, SO - 56k, ROT - 95k, 60 rpm, TO - 5.9k, 300 gpm, 2,925 psi on, 2,550 psi off. CECD - 10.15, AECD - 10.75. AST - 0.00, ART - .74 Top of OA ~ 9,125' MD, 4,453' TVD "TD 6.75" OA Target ~ 9,186' MD, 4,465' TVD, 1.119/05, 01:00 hr 01:00 - 02:00 1.00 DRILL P PROD1 Circulate bottoms up for ECD's. 250 gpm, 2,100 psi, 60 rpm, TQ - 5.3k CECD -10.14, AECD - 10.74. ECD's straight lined ~ 10.74 with 1.5 x bottoms up. Shakers clean. MW - 9.2 ppg 02:00 -09:00 7.00 DRILL P PROD1 Mad pass, backream from 9,186' to 7,976 ~ 300 fph'. 60 rpm, TO 5.6k, 260 gpm, 2,225 psi. 09:00 - 10:30 1.50 DRILL P PROD1 Mad pass, backream from 7,976' to 7,418' ~ 600 fph'. 60 rpm, TO 5.6k, 260 gpm, 2,225 psi. 10:30 - 11:00 0.50 DRILL P PROD1 Service top drive and crown, monitor well. 11:00 - 12:00 1.00 DRILL P PROD1 RIH from 7,418' to 9,186' 12:00 - 15:00 3.00 DRILL P PROD1 Circulate bottoms up. 300 gpm, 2850 psi, 60 rpm, TQ - 5.8k. Displace well with 9.2 ppg SFMOBM. 15:00 - 20:00 5.00 DRILL P PROD1 Monitor well. POH from 9,186' to 236'. 20:00 -22:00 2.00 DRILL P PROD1 Lay down 6.75" drilling BHA #7. 22:00 -22:30 0.50 DRILL P PROD1 Clean rig floor, clear Noor of vendor tools. 22:30 -00:00 1.50 CASE P RUNPRD Rig up to run 4.5` 12.6# L-80 BTC /IBT, Slotted /Solid liner assembly. 11/10/2005 00:00 -03:00 3.00 CASE P RUNPRD PJSM. RIH with 4.5" slotted liner assembly to 1,954'. Used Best-0-Life pipe lubricant. BTC TO - 3,600 fUlbs, IBT TO - 6,000 iUlbs. PU - SSk, SO - 51 k. Ran total of 19 Jts 4.5" 12.6# L-8016T solid liner 23 Jts 4.5" 12.6# L-80 BTC slotted liner 2 crossover Jts IBT x 8TC Shoe set ~ 8,632' Printed: 12/5/2005 11:10:45 AM BP EXPLORATION Page 10 ofi 22' Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 11/10/2005 00:00 - 03:00 3.00 CASE P RUNPRD FC set ~ 8,587' 4.5" x 6.3" Swell Packer set ~ 8,521' - 8,531' 7.625' x 5.5" Baker ZXP Liner Top Packer set ~ 6,704' Liner Top set ~ 6,693' 28 HES 4.5' x 5.75" x 8" centralizers as follows: 1 ea, locked on top of shoe, 1 ea above and below swell packer, 1 ea on jts 1-25 03:00 - 12:30 9.50 CASE P RUNPRD RIH with 4.5" slotted liner assembly on 4' HT-40 drill pipe to 8,632' ~ 90 fpm, filling every stand. 12:30 - 13:00 0.50 CASE P RUNPRD Set hanger with 2,000 psi, set down 25k. Set packer with 3,200 psi, bleed to 0 psi. Pressure test packer with 1,500 psi - 5 min - OK. Release liner setting toot. Pressure up to 1,000 psi and pull out of seals. Pressure bled to 0 psi 13:00 - 13:30 0.50 CASE P RUNPRD Circulate bottoms up ®270 gpm, 1110 psi, PU - 115k, SO - 185k. 13:30 - 17:30 4.00 CASE P RUNPRD POH from 6,632'. Lay down running tool. 17:30 - 18:00 0.50 STWHIP P WEXIT Pick up whipstock tools to rig floor. 18:00 - 21:00 3.00 STWHIP P WEXIT Pick up, make up whipstock assembly. 21:00 -00:00 3.00 STWHIP P WEXIT RIH with whipstock assembly on 4" HT-40 drill pipe. 11/11/2005 00:00 - 01:30 1.50 STWHIP P WEXIT RIH with whipstock assembly to 6,521 ~ 50 fpm 01:30 - 02:00 0.50 STWHIP P WEXIT Orient whipstock to 20L from highside. PU - 137k, SO - 86k 02:00 - 02:30 0.50 STWHIP P WEXIT RIH and tag top of tieback sleave ~ 6,693.5'. Set trip anchor with 10k, pick up 5k over to verify. Set down 20k and shear mills for whipstock. Test backside to 1,500 psi - 5 min - OK. 02:30 - 03:30 1.00 STWHIP P WEXIT Displace well from 9.2 ppg SFMOBM to 9.2 ppg MOBM @t 300 gpm, 2,200 psi. Obtain slow pump rates. 03:30 - 07:30 4.00 STWHIP P WEXIT Mill window from 6,606' to 6,618'. 325 gpm, 2,480 psi, 60 rpm, TO - 5k. 07:30 - 08:30 1.00 STWHIP P WEXIT Drill 17' of new hale from 6,618' to 6,635'. 331 gpm, 2,525 psi, 80 rpm, TQ - 5k, WOB - 3-5k, PU - 137k, SO - 86k, RW - 96k. 08:30 - 09:30 1.00 STWHIP P WEXIT Pump 45 bbl high vis sweep surface to surface ~ 330 gpm, 2,520 psi, 60 rpm, TQ - 4.1 k. Work mills through window while circulating. 09:30 - 13:00 3.50 STWHIP P WEXIT POH from 6,606' to 461'. MW - 9.2 ppg, PU - 132k, SO - 88k. 13:00 - 14:30 1.50 STWHIP P WEXIT Lay down 43/4' DC's and milling assembly BHA #8. 14:30 - 15:00 0.50 STWHIP P WEXIT Clean and clear rig floor, lay down vendor tools. 15:00 - 16:00 1.00 STWHIP P WEXIT Flush and function BOP stack. 16:00 - 16:30 0.50 STWHIP P WEXIT Rig up to test ROPE. Pull wear bushing, install test plug. 16:30 - 20:30 4.00 STWHIP P WEXIT Test ROPE and floor related equipment to 250 psi low pressure - 5 min each, 3,500 psi high pressure - 5 min each. Witnessing of test waived by AOGCC rep Lou Grimaldi. Test witnessed by BP reps Alan Madsen, Robert French and NAD Toolpushers Bill Bixby, Brian Tiedemann. 20:30 - 21:00 0.50 STWHIP P WEXIT Rig down ROPE test equipment. Bbw down lines, pull test plug, install wear bushing. 21:00 - 23:00 2.00 STWHIP P WEXIT Change out lower IBOP on top drive. Test same to 250 psi, 3,500 psi. 23:00 - 23:30 0.50 STWHIP P WEXIT Service top drive. 23:30 -00:00 0.50 DRILL P PROD2 PJSM for BHA. Pick up tools for BHA #9. 11/12/2005 00:00 - 01:00 1.00 DRILL P PROD2 Pick up, make up 6.75" directional drilling assembly. (BHA #9) Orient tools. 01:00 - 02:00 1.00 DRILL P PROD2 PJSM on nuclear source. Make up same and complete make Printed: 12/5/2005 11:10:45 AM 'BP EXPLORATION Page t1 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24!2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Opera#ions 11/12/2005 01:00 - 02:00 1.00 DRILL P PROD2 up of BHA. 02:00 - 05:00 3.00 DRILL P PROD2 RIH with BHA #4 on 4" HT-40 drill pipe to 6,576'. Shallow hole tested MWD ~ 1167'. 05:00 - 06:30 1.50 DRILL P PROD2 Circulate and condition mud. Obtain benchmark ECD's, 10.47 ppg non-rotating, 10.68 ppg rotating. 300 gpm, 2560 psi, 60 rpm, TO - 3.5k. Orient high side and run bit through window. PU - 125k, SO - 90k. 06:30 - 12:30 6.00 DRILL P PROD2 Directionally drill from 6,635' to 7,038'. 300 gpm, On psi - 3,100, Off psi - 2,800, rpm - 60, TQ off - 4.4k, TO on - 5.8k. Calc. ECD - t0.65 ppg, Act. ECD - 10.83 ppg. AST - 1.27 hr, ART - 2.44 hr. The resistivity tool working intermittently. Mad passed from 6,843' to 6,946'. 12:30 - 13:00 0.50 DRILL P PROD2 Circulate bottoms up for trip for LWD ~ 300 gpm, 2,650 psi. 13:00 - 16:30 3.50 DRILL P PROD2 Montor well. PU - 143k, SO - 72k, mud weight - 9.2 ppg. POH to 6,550'. Drop ball and open circulating sub (sheared ~ 2,270 psi). Pump 15 bbls. of 11.2 dry job. Continue POH from 6,550 to 417'. 16:30 - 18:00 1.50 DRILL P PR002 PJSM on nuclear source. lay down BHA #9. 18:00 - 19:00 1.00 DRILL P PROD2 Change out washpipe on top drive. 19:00 - 20:30 1.50 DRILL P PROD2 PJSM on nuclear source. Pick up, make up 6.75" directional drilling assembly. (BHA #10) Orient tools. 20:30 - 23:00 2.50 DRILL P PROD2 RIH with BHA ff4 on 4" HT-40 drill pipe to 6,118'. Shallow hole tested MWD ~ 1168'. 23:00 - 23:30 0.50 DRILL P PROD2 Service top drive, grease crown sheaves. 23:30 -00:00 0.50 DRILL P PROD2 Cut and slip drilling fine 72' 11/13/2005 00:00 -00:30 0.50 DRILL P PROD2 Continue cut and slip drilling line. Clean under drawworks and inspect brakes. 00:30 - 01:00 0.50 DRILL P PROD2 RIH from 6,118' to 6,818'. 01:00 - 02:00 1.00 DRILL P PROD2 RIH from 6,818' to 7,038' taking 30' surreys. 02:00 -04:00 2.00 DRILL P PROD2 Directionally drill from 7,038' to 7,319'. PU - 130k, SO - 76k, ROT - 97k, WOB - 5k, 304 gpm, 2,780 psi off, 2820 psi on, 40 rpm, 4k TO off, 5k TO on. CECD 10.19 ppg, AECD 10.8 ppg 04:00 -04:30 0.50 DRILL P PROD? Circulate for ECD's. Act ECD from 10.8 ppg to 10.6 ppg. 04:30 -00:00 19.50 DRILL P PROD2 Directionally drill from 7,319' to 9,184'. PU - 137k, SO - 70k, ROT - 100k, WOB - 5-15k, 300 gpm, 2,920 psi off, 3,070 psi on, 60 rpm, 6.2k TO off, 7.5k TO on. CECD 10.34 ppg, AECD 10.97 ppg. AST - 5.26 hrs, ART - 4.01 hrs. Backream each stand. Survey every 30'. 11/14/2005 00:00 - 06:00 6.00 DRILL P PROD2 Directionally drill from 9,184' to 9,930'. PU - 137k, SO - 67k, ROT - 98k, WOB - 5-15k, 300 gpm, 2,990 psi off, 3,100 psi on, 60 rpm, 6.2k TO off, 7.5k TO on. CECD 10.44 ppg, AECD 11.12 ppg. Backream each stand. Survey every 30'. 06:00 - 07:00 1.00 DRILL P PROD2 Clean frost from top drive blower intake due to low air flow. 07:00 -00:00 17.00 DRILL P PROD2 Directionally drill from 9,930' to 11,050'. PU - 160k, SO - 36k, ROT - 79k, WOB - 5-15k, 300 gpm, 3,015 psi off, 3,180 psi on, 60 rpm, 7.8k TO off, 9.1k TO on. CECD -10.77 ppg, AECD - 11.19ppg. AST - 3.74 hrs, ART - 6.11 hrs. Backream each stand. Survey every 30'. 11/15/2005 00:00 - 01:00 1.00 DRILL P PROD2 Directionally drill from 11,050' to 11,184'. PU - 160k, SO - 48k, ROT - 98k, WOB - 10k, 300 gpm, 3,130 psi off, 3,500 psi on, 60 rpm, 8.6k TO off, 9k TO on. CECD - 10.64 ppg, AECD - 11.55 ppg. Backream each stand. Survey every 30'. 01:00 - 03:00 2.00 DRILL P PROD2 Not able to orient or slide. CBU for ECD's. CECD - 10.64 ppg, Printed: 12/5/2005 11:10:45 AM BP EXPLORATION Page '12 of 22' Operations Sumlmary Report Legal Welt Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: i0l23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Qate I 'From - To Hours Task Code NPT Phase Description of Operations 11/15/2005 01:00 - 03:00 2.00 DRILL P PROD2 AECD - 11.55 ppg. Circulated to ECD of 11.2 ppg. Circulate 15 bbls 11.5 ppg weighted sweep surf -surf. 300 gpm, 3,180 psi, 60 rpm, 8.2k TO, PU - 100k, SO 77k. RECD after sweep - 11.05 ppg. Sweep returned 5-10% increase in cuttings. 03:00 - 06:00 3.00 DRILL P PROD2 Directionally drill from 11,184' to 11,423'. PU - 170k, SO - 36k, ROT - 97k, WOB - 15k, 300 gpm, 3,060 psi off, 3,450 psi on, 60 rpm, 8.1 k TO off, 9.3k TO on. CECD - 10.56 ppg, AECD - 11.34 ppg. Backream each stand. Survey every 30'. TO L-250 L1 NB ~ 11,423' MD, 4,323' TVD ~ 06:00 hr 11/1512005. 06:00 - 07:00 1.00 DRILL P PROD2 Circulate bottoms up. 300 gpm, 3,060 psi, 60 rpm, 8k TO. 9.2 ppg MW, CECD - 11.05 ppg, AECD - 11.34 ppg. 07:00 - 12:00 5.00 DRILL P PROD2 Backream /Madpass log, 600 fph from 11,423' to 10,489'. 297 gpm, 3,070 psi, 60 rpm, 8-10k TO, PU - 98k. CECD - 10.56 ppg, AECD - 11.02 12:00 - 14:00 2.00 DRILL P PROD2 Difficulty going back down to set tool joints in position for connections. Slowdown Madpass logging to 200 fph in shales from 10,489' to 10,023'. 300 gpm, 2,990 psi, 60 rpm, 8k TO. 14:00 - 20:30 6.50 DRILL P PROD2 Backream 1 Madpass log, 600 fph from 10,023' to 7,850. Started to have minor packoffs. CECD - 10.04 ppg, AECD - 10.72 ppg. 20:30 -00:00 3.50 DRILL P PROD2 Backream /Madpass log, from 7,850' to 7,800. Slow down as needed to control packoffs & ECD's. 275 gpm, 2,240 psi, 55 rpm, 5.5k TO. CECD - 10.04 ppg, AECD - 10.62 ppg 11/16/2005 00:00 -04:00 4.00 DRILL P PROD2 Backream /Madpass log, from 7,800' to 7,497. Slow down as needed to control packoffs & ECD's. 275 gpm, 2,260 psi, 60 rpm, 5k TO. CECD - 10.04 ppg, RECD - 10.56 ppg 04:00 - 07:00 3.00 DRILL P PROD2 Backream /Madpass log, 600 fph from 7,497' to 6,853'. 295 gpm, 2,340 psi, 40 rpm, 5k TO. CECD - 10.02 ppg, AECD - 10.46 ppg. 07:00 -09:30 2.50 GRILL P PROD2 Attempt Madpass log from 6,853' to 6,761'. Packing off. Made several attempts. Abandon logging operations. Pull dry OK working tight spots. 09:30 - 10:30 1.00 DRILL P PROD2 POH without pumping from 6,761' to 6,577'. Work intermitent tight spots. PU - 135k, SO - 90k. 10:30 - 12:00 1.50 DRILL P PR002 Circulate bottoms up. 287 gpm, 2,100 psi, 60 rpm, 4k TQ. CECD - 10.02 ppg, AECD -10.24 ppg. 12:00 - 12:30 0.50 DRILL P PROD2 Service top drive and crown. 12:30 - 15:30 3.00 DRILL P PROD2 RIH from 6,577' to 11,290'. PU - 130k, SO - 87k (~ shoe). Obtain PU & SO weights every 500'. Filled pipe ~ 8,440' & 9,830'. 15:30 - 18:00 2.50 DRILL P PROD2 Wash from 11,290' to 11,423', circulate and condition mud. 300 gpm, 3,125 psi, 80 rpm, 7.8k TO. CECD -10.73 ppg, initial AECD - 11.31 ppg, final RECD -10.99 ppg 18:00 - 19:30 1.50 DRILL P PROD2 Displace well from 9.2 ppg MOBM to 9.2 ppg SFMOBM ~ 300 gpm, 3,125 psi, 80 rpm, 7.8k TQ. 19:30 - 22:00 2.50 DRILL P PROD2 Monitor well - OK. POH with BHA #10 from 11,423' to 6,575'. No problems. 22:00 - 22:30 0.50 DRILL P PROD2 Drop ball, open circulating sub and pump CaCt dry job. 22:30 -00:00 1.50 DRILL P PROD2 POH from 6,575' to 4,200' to pick up whipstock retrieval assembly. 11/17/2005 00:00 - 01:00 1.00 DRILL P PROD2 POH with BHA #10 from 4,200' to 235' arinted: r2isnoos rr:raasa~n BP EXPLORATION Page 13 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From -, To Hours Task' Code NPT Phase Description of Operations 11/17/2005 01:00 - 03:00 2.00 DRILL P PROD2 PJSM for nuclear source. Lay down drilling assembly BHA #10. 03:00 -04:00 1.00 DRILL P PROD2 Clean and clear rig floor of vendor toots. Function rams. 04:00 - 05:00 1.00 WHIP P RUNPRD Pick up whipstock fishing tools to rig floor. 05:00 - 06:00 1.00 WHIP P RUNPRD Make up whipstock retrieval tools BHA #11. 06:00 - 07:00 1.00 WHIP P RUNPRD RIH with BHA #11 on 4" HT-40 DP to 2,426' 07:00 - 07:30 0.50 WHIP P RUNPRD Shallow hole test MWD. 275 gpm, 830 psi. 07:30 - 08:30 1.00 WHIP P RUNPRD RIH from 2,426'to 5,037' with 8 stands of 4" HT-40 HWDP, 20 stands 4' DP 08:30 - 11:30 3.00 WHIP P RUNPRD RIH from 5,037' to 5,995' picking up (30) 4.75" drill collars 1 x 1. 11:30 - 12:00 0.50 WHIP P RUNPRD RIH on drill pipe from 5,995' to 6,603'. 12:00 - 12:30 0.50 WHIP P RUNPRD Orient retrieval lug. PU - 149k, SO 100k. Insert lug on 3rd attempt ~ 6,611'. Verify latch-up with 215k PU weight. Pulled free on second pick up. Pick up to 6,575'. 12:30 - 13:30 1.00 WHIP P RUNPRD Circulate bottoms up. 275 gpm, 1.980 psi. Monitor well - OK. 9.2 ppg mud wt. 13:30 - 14:00 0.50 WHIP P RUNPRD POH slow from 6,575' to 6,048'. PU - 150k. 14:00 - 15:00 1.00 WHIP P RUNPRD POH from 6,048' to 5,037' standing back 10 stands of 4.75" drill collars. 15:00 - 18:00 3.00 WHIP P RUNPRD POH from 5,037' to 102'. 18:00 - 19:00 1.00 WHIP P RUNPRD PJSM with Baker rep. Lay down whipstock retrieval assembly. 19:00 - 20:00 1.00 WHIP P RUNPRD Lay down whipstock, break out trip anchor assembly. "Visual inspection of whipstock slide indicated a full 12' window. 20:00 - 20:30 0.50 WHIP P RUNPRD Clean and clear rig floor of vendor tools. Function rams. 20:30 - 21:30 1.00 CASE P RUNPRD Rig up to run 4" solid /screened liner. 21:30 -00:00 2.50 CASE P RUNPRD PJSM on liner job. Pick up 4.5' float bent shoe joint, (1) 4.5" 12.6# L-801ST-M Solid liner jt (3,000 ft/Ibs MU TQ) and RIH with 4' 10.9# L-80 IBT-M Solid liner aftemating per running detail with 4' 15.2# L-80 IBT-M Screened liner (3,200 ft/Ibs MU TQ) Lubricate pipe threads with Best 0 Life 2000 NM. 11/18/2005 00:00 - 06:30 6.50 CASE P RUNPRD RIH with 4' 10.9# L-80 fBT-M Solid liner alternating per running detail with 4" 15.2# L-80 IBT-M Screened liner to 4,682' ~ 90 fpm. Record up & down weights every 1000' in casing. PU - 80k, SO - 65k ~ 4,682' 06:30 - 10:00 3.50 CASE P RUNPRD RIH with screened liner on 4" HT-40 drill pipe to 6,606'. PU - 106k, SO - 75k. Exit casing on 3rd attempt. 10:00 - 12:30 2.50 CASE P RUNPRD Continue RIH on 4" HT-40 drill pipe from 6,606' to 8,884' 12:30 -13:00 0.50 CASE P RUNPRD RIH with 8 stands 4" HT-40 HW DP from 8,884' to 9,621'. 13:00 - 14:00 1.00 CASE P RUNPRD RIH with 10 stands 43/4" drill collars from 9,621' to 10,540'. 14:00 - 15:00 1.00 CASE P RUNPRD RIH on drill pipe from 10,540' to 11,271'. Worked through flight spot from 10,920' to 10,960'. PU & SO weights taken every 500' in open hole. `Did not see any centralizers going through window. 15:00 - 15:30 0.50 CASE P RUNPRD Set down on Hook Hanger. PU -180k, SO - 75k. Worked down hanger 5' past hook twice working out pipe compression, pick up and turn 180 deg, and set down 40k on hook. Verify hanger set 2 times. 15:30 - 16:00 0.50 CASE P RUNPRD Drop ball and pump to seat ~ 2 bpm. Pressure up to 3,000 psi for 1 minute. Pressure up to 4,230 psi, shear out. Pick up and Printed: 12/5/2005 11:10:45 AM 'BP 'EXPLO'RATION Page 14 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10!24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12!3!2005 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 11/f 812005 15:30 - 16:00 0.50 CASE P RUNPRD verify HR tool released. PU - 150k, 50'. Ran total of: 2 jts 4.5' 12.6# L-80 BTC tubing 69' jts 4" 10.9# L-80 BTC tubing 44 jts 4" x 4.95" OD 15.2# Screened tubing w/ 9.5# L-80 BTC ends & w! 53(4" integral blade centralizers in mid joint 4 1/8" x 53/4" rigid blade centralizers on solid joints #1-69 2 centralizers each above and below Swell packers. 73 total centralizers. Tops: Shoe ~ 11,273.57' 1 bent jt and 1 solid jt 4.5" 12.6# L-80 BTC ~ 11,191' 4" 10.9# L-80 BTC solid joints & 4" x 4.925' screened joints aitemating 1 x 1 ~ 10,407' Solid ~ 10,285' Swell packer ~ 10,262' RA tag ~ 10,254' Solid ~ 10,083' Altemate Screened & Solid ~ 8,635' Solid ~ 8,391' Altemate Screened & Solid ~ 6,932' Solid ~ 6,689' Swell packer ~ 6,66T RA tag ~ 6,659' " Top of Liner ~ 6,601' 16:00 - 17:00 1.00 CASE P RUNPRD Circulate bottoms up. 272 gpm, 1,680 psi. Stand back 1 stand. 17:00 - 17:30 0.50 CASE P RUNPRD Cut & slip 84' drilling line. 17:30 - 18:30 1.00 CASE P RUNPRD Service rig & top drive. 18:30 -00:00 5.50 CASE P RUNPRD POH with liner running tool from 6,509' to 12' 11!1912005 00:00 -00:30 0.50 CASE P RUNPRD Break down, lay down liner running tool. 00:30 -04:00 3.50 CASE P RUNPRD PJSM. Make up Baker LEM assembly. 3,200 fUlbs MU TQ. Rig up false table and pick up 23/8' inner string. Make up Baker ZXP packer & HR running tool 04:00 - 08:00 4.00 CASE P RUNPRD RIH with Lat 1 LEM assembly from 195' to 6,614'. Wash down to SBE ~ 6,717', plus 11' for LEM latch up ~ 6,601'. Verify latch up with 30k set down weight. Ran total of (1) jt 4.5' 12.6# L-801BT (2) 4.5" 12.6# L-80 IBT space out pups 08:00 - 09:30 1.50 CASE P RUNPRD Drop and pump down ball to seat. Pressure up to 4,000 psi and set DCP packer. Release running tool. Test packer integrity to 1500 psi - OK. Printed: 12/5/2005 11:10:45 AM BP EXPLORATION Page 15 of 22'' Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 11/19/2005 08:00 - 09:30 1.50 CASE P RUNPRD TOPS 4.75" ID x 6.27" OD x 19.67' Seal Bore Extension ~ 6,563.61' ZXP liner top packer w/ 5.75" ID x 6.45` OD x 11' Tie back sleeve ~ 6,544.59'. 09:30 - 10:30 1.00 CASE P RUNPRD Circulate 1 1/2 x bottoms up ~ 295 gpms, 1,740 psi. 9.2 ppg mud wt. 10:30 - 11:30 1.00 CASE P RUNPRD POH from 6,523' to 5,962'. 11:30 - 13:00 1.50 CASE P RUNPRD POH from 5,962' to 4,948' laying down 21 43/4" drill collars and racking back 3 stands DC's. 13:00 - 15:00 2.00 CASE P RUNPRD POH from 4,948' to liner running tool standing back HWDP and drill pipe. 15:00 - 15:30 0.50 CASE P RUNPRD Service break and lay down liner running tool. 15:30 - 16:00 0.50 CASE P RUNPRD Lay down 5 joints 23/8" EUE inner string. 16:00 - 17:00 1.00 CASE P RUNPRD Clear rig floor of LEM equipment. Function rams. 17:00 - 18:00 1.00 STWHIP P WEXIT Pick up whipstock tools to rig floor. 18:00 - 20:00 2.00 STWHIP P WEXIT PJSM. Make up whipstock BHA #12. Orient tools. 20:00 -00:00 4.00 STWHIP P WEXIT RIH from 260' to 3,337' with 3 stands 43/4" DC's and 4" drill pipe ~ 45 fpm per Baker rep. Shallow hole tested MWO ~ 1,460' - OK. 11/20/2005 00:00 - 01:30 1.50 STWHIP P WEXIT RIH from 3,337' to 6,500' on 4" drill pipe and 8 stands of HWDP ~ 45 fpm per Baker rep. Orient whipstock to 15 deg left. PU - 135k, SO - 85k, 348 gpm, 2,875 psi. 01:30 - 02:30 i.00 STWHIP P WEXIT Tag no go on liner top 5' deep ~ 6,550'. Set down 12k. Shear out whipstock bolt with 35k set down weight. Establish free rotation. Test backside to 1500 psi - 5 minutes - OK. 'Top of window ~ 6,391' 02:30 - 03:00 0.50 STWHIP P WEXIT Displace well from 9.2 ppg SFMOBM to 9.2 ppg MOBM. 348 gpm, 2,875 psi. 03:00 - 08:00 5.00 STWHIP P WEXIT Mill 7 518" window from 6,391 to 6,403. 343 gpm, 2520 psi, 70 rpm, 5.4k TO, PU - 135k, SO - 85k, RT - 98k, WOB - 2k. 'Top of window ~ 6,391' 'Bottom of window ~ 6,403' 08:00 - 09:00 1.00 STWHIP P WEXI-~ Drill 17' NB L2 new hole from 6,403' to 6,420' with same parameters. 09:00 - 12:00 3.00 STWHIP P WEXIT Circulate high viscosity sweep surface to surface while reciprocating and rotating through window ~ 345 gpm, 2535 psi, PU - 98k, SO - 85k, RPM - 80, TO - 4.3k. MW - 9.2 ppg. Monitor well, pump dry job. 12:00 - 14:00 2.00 STWHIP P WEXIT POH from 6,403' to 348'. PU - 130k, SO - 95k. 14:00 - 15:00 1.00 STWHIP P WEXIT Lay down 9 43/4" DC's and bumper sub. 15:00 - 15:30 0.50 STWHIP P WEXIT Lay down whipstock mill assembly BHA #12. 15:30 - 16:30 1.00 STWHIP P WEXIT Clean and clear rig floor of vendor tools. Function rams. 16:30 - 17:00 0.50 STWHIP P WEXIT Flush out BOP stack with jet sub. Blow down lines. 17:00 - 18:30 1.50 DRILL P PROD3 Make up directional drilling assembly BHA #13. PJSM on nuclear source. Load same. RIH with flex DC's to 231'. 18:30 - 19:00 0.50 DRILL P PROD3 RIH from 231' to 1,166' with BHA #13 Ar14' HT-40 drill pipe. 19:00 - 19:30 0.50 DRILL P PROD3 Shallow hole test MWD. 290 gpm, 1,460 psi. OK. 19:30 -22:00 2.50 DRILL P PROD3 RIH from 1,166' to 6,302' with BHA #13 ~ 4' HT-40 drill pipe. 22:00 - 23:00 1.00 DRILL P PROD3 Circulate bottoms up X 2. 300 gpm, 2,585 psi, PU - 115k, SO - 78k. Establish base line ECD readings. CECD - 10.36 ppg. Rotating AECD - 10.47 ppg ~ 60 rpm, 275 gpm, 2,210 psi. Orient bit 15 deg. right. Shut down pumps and go through Printed: 12/5YL005 11:10:45 AM BP EXPLORATION Page js of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date Prom - To Hours Task Code NPT Phase Description of Operations 11/20/2005 22:00 - 23:00 1.00 DRILL P PRODS window. PU- 120k, SO - 85k. 23:00 -00:00 1.00 DRILL P PRODS Wash down from 6,407' to 6,420'. 275 gpm, 2,210 psi. 11/21/2005 00:00 - 07:00 7.00 DRILL P PRODS Directionally drill from 6,420' to 6,774'. 269 gpm, 2,060 psi off bottom, 2,180 psi on bottom. PU - 118k, SO - 76k, WOB 5-10K. CECD - 10.39 ppg, AECD - 10.27 ppg. All sliding 07:00 - 08:00 1.00 DRILL P PRODS Circulate bottoms up. 269 gpm, 2060 psi. Monitor well. MW - 9.2 PP9 08:00 - 09:00 1.00 DRILL P PRODS POH from 6,774' to 6,302'. PU - 138k, SO - 75k. 09:00 - 10:00 1.00 DRILL N RREP PRODS Replace topdrive brake caliper pins. 10:00 - 10:30 0.50 DRILL P PRODS RIH from 6,302' to 6,774'. Orient to drill. 10:30 -18:00 7.50 DRILL P PRODS Directionally drill from 6,774' to 7,572'. 275 gpm, 2,300 psi off bottom, 2,475 psi on bottom. PU - 128k, SO - 71 k, RW - 95k, WOB 5K, RPM - 60, TO off - 4.2k, TO on - 5.2k. CECD - 10.57 ppg, AECD - 10.86 ppg. 18:00 - 19:30 1.50 DRILL P PRODS Circulate for geology. Pump 11.2 ppg weighted high vis sweep surface to surface. 275 gpm, 2,300 psi, 60 rpm, 4k TO, PU - 105k, SO - 95k. CECD - 10.58 ppg, initial AECD - 10.57 ppg, final AECD - 10.84 ppg 19:30 - 20:30 1.00 DRILL P PRODS Directionally drill from 7,572' to 7,664'. 275 gpm, 2,300 psi off bottom, 2,475 psi on bottom. PU - 128k, SO - 71 k, RW - 95k, WOB 5K, RPM - 60, TO off - 4.2k, TO on - 5.2k. CECD -10.58 ppg, AECD - 10.86 ppg. 20:30 - 21:00 0.50 DR1Lt P PRODS Circulate for geology. 275 gpm, 2,300 psi, 60 rpm, 5k TO, PU - 100k, SO - 95k. CECD - 10.62 ppg, initial AECD - 10.69 ppg, final AECD - 10.49 ppg. Log down from 7,595' to 7,630'. 21:00 - 00:00 3.00 DRILL P PRODS Directionally drill from 7,664' to 7,850'. 275 gpm, 2,300 psi off bottom, 2,600 psi on bottom. PU - 129k, SO - 71 k, RW - 100k, WOB 5-10K, RPM - 60, TO off - 5k, TO on - 6.4k. CECD - 10.50 ppg, RECD - 10.58 ppg. AST - 9.77 hrs, ART - 1.18 hrs. 11/22/2005 00:00 -04:30 4.50 DRILL P PRODS Directionally drill from 7,850' to 8,244'. 270 gpm, 2,450 psi off bottom, 2,600 psi on bottom. PU - 136k, SO - 68k, RW - 98k, WOB 5-10K, RPM - 60, TO off - 5.5k, TQ on - 7k. AST - 2.62, ART - 0.32. Calculated ECD - 10.42 ppg, Actual ECD - 11.1 PPg• 04:30 - 05:30 1.00 DRILL P PRODS Circulate for ECD's ~ 250 gpm, 2130 psi, 60 rpm, 5k TO. Following circulation, Calculated ECD - 10.6 ppg, Actual ECD - 10.7 ppg. 05:30 - 23:30 18.00 DRILL P PRODS Directionally drill from 8,244' to 10,022'. 270 gpm, 2,650 psi off bottom, 2,850 psi on bottom. PU - 145k, SO - 37k, RW - 96k, WOB 5-10K, RPM - 60, TQ off - 6k, TO on - 7k. AST - 4.56, ART - 3.3. Calculated ECD - 10.8 ppg, Actual ECD -11.2 ppg. 23:30 -00:00 0.50 GRILL P PRODS Having difficulty sliding. Circulate sweep around to clean up hoe. 11/23/2005 00:00 -00:30 0.50 DRILL P PRODS Having difficulty sliding. Circulate sweep around to clean up hole. No appreciable cuttings returned to surface. 00:30 - 12:00 11.50 DRILL P PRODS Directionally drill from 10,022' to 10,954' • 275 gpm, 2,650 psi off bottom, 2,950 psi on bottom. PU - i50k, SO - 35k, RW - 96k, WOB 5-10K, RPM - 60, TQ off - 7k, TQ on - 8k. AST - 3.0, ART • 1.62. 12:00 -00:00 12.00 DRILL P PRODS Directionally drill from 10,954' to 12,074' - 275 gpm, 2,920 psi off bottom, 3,070 psi on bottom. PU - 165k, SO - 38k, RW - 92k, WOB 5-10K, RPM - 60, TQ off - 8k, TQ on - 9k. AST - 3.02, ART - 2.37. Printed: 12/5/2005 11:10:45 AM BP EXPLORATION Page 17 of 22 Operations Sulmmary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24!2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12!3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date from - To Hours Task Code NPT Phase Description of Operations 11/24!2005 00:00 - 07:30 7.50 DRILL P PRODS Directionally drill from 12,074' to 12,635' (TD) - 275 gpm, 2,945 psi off bottom, 3,160 psi on bottom. PU - /73k, SO - 35k, RW - 95k, WOB 5-10K, RPM - 60, TO off - 9k, TO on - 10k. AST - 1.75, ART - 1.62. 07:30 - 09:00 1.50 DRILL P PRODS Circulate sweep around - 290 gpm, 3,200 psi - 9.2 ppg fluid going in and coming out. 09:00 -00:00 15.00 DRILL P PRODS Monitor the well -stable. Backream /MAD pass from 12,635' to 8,345' at 600'/hour max, 270 gpm, 2,800 psi, 60 rpm, TQ 6K. 11/25/2005 00:00 - 08:30 8.50 DRILL P PRODS Continue to Backream /MAD pass from 8,345' to the window at 600'lhour max, 270 gpm, 2,800 psi, 60 rpm, TO 6K. Hole started trying to pack off at 8,260'. Reduced backreaming rate to -100'/hour and were able to backream without packing off to 8,020'. At 8,020', the backreaming rate was gradually increased back to -600'lhour without packing off. Backream out of the hole to 6,500'. Shut down the pumps and rotary and pull pipe dry across the window and into the casing from 6,500' to 6,302'. 08:30 - 09:30 1.00 DRILL P PRODS Circulate 1.5 x bottoms up - 300 gpm, 2,225 psi, 60 rpm, TO - 5k. Calculated ECD - 10.08 ppg, Initial Actual ECD - 10.38 ppg, Pinal Actual ECD -10.28 ppg 09:30 - 11:30 2.00 DRILL P PRODS Cut and slip 85' of drilling line. Clean under the drawworks and service the top drive. 11:30 - 13:30 2.00 DRILL P PRODS PJSM. MU Halliburton RTTS/Storm Packer. RIH 30' and apply 1!4 turn io th8 right. Stack off 50k. Apply 22 turns to the left and unsling from the packer. LD single and pressure test above the packer to 1,000psi -good. 13:30 - 14:30 1.00 BOPSU P PRODS Change out the air boots on the riser, pull wear ring, and clean the floor. 14:30 - 18:00 3.50 BOPSU P PRODS RU and test the BOPE and all related equipment. Test the 80PE to 250 psi / 3,500 psi - no failures. Witness of the test was performed by Tom Anglen (BP), Kelly Cozby (NAD), and was waived by Jeff Jones of the AOGCC. RD testing equipment, blowdown alt surface lines and install wear ring. 18:00 - 19:00 1.00 DRILL P PRODS PU single joint of 4" DP. R1H to the top of the RTTS/Storm Packer. Apply 6 turns to the right and screw into the packer. MU the top drive and apply 21 turns to the right to release the packer. Pull packer to the rig floor. LD RTTS/Storm Packer. 19:00 - 20:00 i .00 DRILL P PRODS Orient the bit to high side and RIH from 6,302' to 6,372' -taking weight. Circulate bottoms up -300 gpm, 2,050 psi, 40 rpm. 20:00 -00:00 4.00 DRILL P PRODS With the bit oriented high side, R1H through the window without problems. Continue to RIH with 4' DP and 8 stands of 4" HWDP from the derrick to 7,879'. PU 24 more joints of 4' HWDP and continue to RIH with 4' DP from the derrick to 11,833' -started to take weight at 10,000', but still able to work pipe down. 11/26/2005 00:00 -00:30 0.50 DRILL P PRODS Continue to RIH with 4" DP from the derrick from 11,833' to 12,635' taking intermittent weight, but able to work pipe down. 00:30 - 03:30 3.00 DRILL P PRODS Circulate and condition the hole - 280 gpm, 3,100 psi. Calcuated ECD - 10.8, Actual ECD -11.1 03:30 - 05:30 2.00 DRILL P PRODS Displace the well over to 9.2 ppg solids free MOBM - 280 gpm, 3,100 psi. 05:30 -09:30 4.00 DRILL P PRODS Monitor the well -stable. MW in - 9.2 ppg, MW out - 9.2 ppg. POH standing back 4" DP and 4' HWDP from 12,635' to Printed: 1?JS12005 11:10:45 AM ` BP EXPLORATION Page 18 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+GOMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABORS 9ES Rig Number: Date 'From - To Hours Task Code. NPT Phase Description of Operations 11!26/2005 05:30 -09:30 4.00 DRILL P PROD3 6,361'. 09:30 - 10:30 1.00 DRILL P PROD3 Drop ball and open the circ sub -observe shear at 2,400 psi. Circulate bottoms up with 400 gpm, 2,230 psi. Monitor the well - stable. Pump dry job. 10:30 - 12:00 1.50 DRILL P PROD3 POH standing back 4" DP from 6,361' to 5,561'. 12:00 - 15:00 3.00 DRILL P PROD3 LD 4' DP from 5,561' to the top of the jars at 233'. 15:00 - 18:00 3.00 DRILL P PROD3 PJSM for LD BHA and handling nuclear source. LD 6-3/4" BHA#13 from 233' -jars, 1 x 4" DP, xo, circ sub, 2 x nm flex dc, ADN, VPWD, MWD/LWD, nm stab, AIM motor and 6-3/4" bit. 6-3/4" Hycalog RR DS146 graded: 413/BT/AJX/2/CTITD. 18:00 - 19:00 1.00 DRILL P PROD3 Clear and clean rig floor. 19:00 - 21:00 2.00 WHIP P RUNPRD PJSM. Bring Baker whipstock retrieval tools to the rig floor. MU Whipstock retrieval BHA to 99' -fixed lug retrieval hook, 1 x 3-112" HWDP, float sub, MWD, bumper sub, jars, xo. 21:00 - 23:30 2.50 WHIP P RUNPRD RIH with Whipstock retrieval BHA on 31 stands of 4" DP and 16 stands of 4' HWDP to 4,446'. 23:30 -00:00 0.50 WHIP P RUNPRD PU 10 x 4-3i4" DC`s and RIH to 4,750'. 11/27/2005 00:00 - 00:45 0.75 WHIP P RUNPRD PU remaining 20 x 4-3/4" DC's and RIH to 5,367'. 00:45 - 01:15 0.50 WHIP P RUNPRD RIH with 4` DP from the derrick to 6,330. 01:15 - 01:30 0.25 WHIP P RUNPRD Orient the retrieval hook to be 180 degrees out from the retrieval slot - 01:30 - 02:00 0.50 WHIP P RUNPRD RIH with 4" DP. PU single joint of 4" DP. Screw in with the top drive and wash down over the slide to ensure slot clean for retrieval. 02:00 - 02:15 0.25 WHIP P RUNPRD Orient the retrieval hook to the retrieval slot. 02:15 - 02:30 0.25 WHIP P RUNPRD Engage the whipstock and pull free with ~70k overpull. 02:30 - 03:15 0.75 WHIP P RUNPRD LD single and POH standing back 4" DP to 5,865'. 03:15 -06:00 2.75 WHIP P RUNPRD At 5,865', there was an increase in the amount of drag seen while pulling out of the hole -max overpull of 100k. Screw in with the top drive to verify orientation of the BHA. Cock the jars and then PU to 100k overpull to fire the jars. Repeat process making minor gains to 5,853'. 06:00 - 13:00 7.00 WHIP P RUNPRD Whipstock puled free at 5,853'. Saw -30K to 50K drag while " pulling out of the hole slowly, standing back 4" DP, HWDP and 4-3/4" collars to 4,630`. Saw expected drag from 4,630' to the top of the retrieval BHA at 99'. 13:00 - 14:30 1.50 WHIP P RUNPRD LD retrieval BHA and whipstock assembly. Recovered all whipstock assembly: slide, ported sub, debris sub, unioader valve, shear sub, retrievable BTA, double pin sub, blank sub, 3 jts 3-1/2" HWDP, 4 DP pups, untoader valve, locator sub and seals. Significant damage to the debris sub on the whipstock BHA. 14:30 - 15:30 1.00 WHIP P RUNPRD Remove all tools from the rig floor. Clean rig floor. 15:30 -16:00 0.50 CONDH P RUNPRD Service the top drive and crown. 16:00 -17:30 1.50 CONDH P RUNPRD PJSM. Bring Baker junk baskets, boot baskets and tools to the rig floor. MU and RIH with baker Junk Basket BHA -junk basket, reverse junk basket, xo, boot basket, boot basket, xo, locator bumper sub, jars. 17:30 - 19:30 2.00 GONDH P RUNPRD PU 30 jts of 4-314" Drill CoNars from the pipe shed and RIH to 963'. 19:30 - 23:00 3.50 CONDH P RUNPRD RIH with 4" HWDP and 4" DP from the derrick. Wash down from 6,326' and tag the top of the L1 liner at 6,544' - 290 gpm, 2,500 psi. Printed: 12/5!2005 11:10:45 AM <BP'EXPLORATION ' 'Page 19 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3!2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 11/27/2005 23:00 -00:00 1.00 CONDH P RUNPRD Circulate bottoms up and condition the mud - 290 gpm, 2,500 psi. Pump dry job. 11!28/2005 00:00 - 03:45 3.75 CONDH P RUNPRD POH from 6,544' to the top of the Junk Basket BHA at 39'. Hole trying to swab. POH with reduced pulling speed to manage swab tendency. 03:45 - 05:30 1.75 CONDH P RUNPRD LD Junk Basket BHA. Recovered -1" diameter x 0.25' thick flat rock and brass lug from whipstock. Clear and clean the floor. 05:30 - 07:00 1.50 CASE P RUNPRD RU liner running handling tools and prepare to run L2 4" screen/solid liner. 07:00 - 07:30 0.50 CASE P RUNPRD Hold PJSM for running liner. 07:30 - 16:30 9.00 CASE P RUNPRD PU and RIH with 4" liner per tally on Baker running tool to 5,884'. Liner shoe track consists of 4.5" float shoe, 4.5" 12.6# L-80 IBT-m bent joint, 4.5" 12.6# L-80 IBT-m full joint and xo. The remaining Liner consists of 4" L-80 9.5# IBT-m solid joints, 4" 10.9# L-801ST-m solid joints, 4` L-80 15.2# IBT-m screens, 3 "Swell" packers, casing swivel assembly and hook hanger assembly. Utilized BOL 2000 NM thread lubricant and torqued to 3,200 ftlbs. Ran 1 straight blade centralizer on each solid joint. 16:30 - 17:00 0.50 CASE P RUNPRD RD casing handling equipment and clear the floor. 17:00 - 18:00 1.00 CASE P RUNPRD RIH with d" DP from the derrick to the window. Work pipe through the window on the first try - PU - 95k, SO - 64k. 18:00 -00:00 6.00 CASE P RUNPRD RIH with remaining 4` DP from the derrick (total of 31 stands). RIH with 4' HWDP from the derrick (total of 16 stands) to 10,232'. Worked pipe with slight rotation (<2,800 ftlbs torque) over tight spo#s at 7,145', 9,050', 9,500' in short amount of time. Set down hard at 10,130' and saw overpull of ~30k while working pipe after -37' of travel. While speaking to engineer in town about options, we were able to work past the Yight spot at 10,130' after -2 hours of working pipe. 11!29/2005 00:00 - 01:00 1.00 CASE P RUNPRD Continue to RIH with 4' solid/screen liner. RIH with 2 stands of 4-3J4" Drill Collars and tag up at 10,362'. Unable to get past " without rotation and cannot rotate the DC's. POH and stand back DC's and RIH with 4" DP. 01:00 - 02:30 1.50 CASE P RUNPRD RIH with 4" DP. Work past tight spot at 10,362' with rotation and work pipe down to 10,442'. Unable to get past 10,442'. PU and stand back a stand of DP. POH with next stand to position liner shoe above previous tight spot at 10,362'. Set down at 10,362'. Confirmed that the tight spots at 7,145', 9,500', 10,130', 10,362' and 10,442' closely match when the top collar of a solid joint with a floating centralizer was at the bottom of the window. Confer with engineer in town. Decision made to POH with the liner and remove the centralizers from the solid joints down to 4' 10.9# L-8016T-m joint #14 per liner tally -the joint that was across the window at shoe depth of 10,130'. 02:30 - 07:00 4.50 CASE N DPRB RUNPRD Pump solids free dry job and POH standing back 4" DP and 4' HWDP to the top of the finer at 5,884' 07:00 - 08:00 1.00 CASE N DPRB RUNPRD RU casing handling tools. 08:00 - 12:00 4.00 CASE N DPRB RUNPRD POH and LD hook assembly, swivel assembly, swell packer assembly, 41 joints of 4' 10.9# L-80 IBT-M solid liner and swell packer assembly. LD 4" 10.9# L-80 IBT-M solid / 4" 15.2# L-80 Printed: 12!5/2005 1 t x0:45 AM BP EXPLORATION Page 20 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABORS ALASKA DRILLING 1 Rig Release: 12/3!2005 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Task Code NPfi Phase Description of Operations 11/29/2005 08:00 - 12:00 4.00 CASE N DPRB RUNPRD IBT-M screen liner to 3,370'. Remove all centralizers from the solid liner joints. Found 2 joints, #17 and #18 of the 10.9# liner) with a centralizer crimped onto each of the joints - replaced both of the joints in the liner string. 12:00 - 14:30 2.50 CASE N DPRB RUNPRD PU and RIH with 4" liner pertally - no centralizers on solid joints from 10.9# #10 joint. Utilized BOL 2000NM thread lubricant and torqued to 3,200 tt-Ibs. 14:30 - 15:00 0.50 CASE N DPRB RUNPRD RD casing handling equipment. 15:00 - 15:30 0.50 CASE N DPRB RUNPRD RIH with liner on 4" DP through the window on the first attempt to 6,550'. 15:30 - 20:00 4.50 CASE N DPRB RUNPRD Continue to RIH with 4" solid/screen liner on 4" DP, 4" WWDP, and 4-314" DC's to 10,442'. Worked pipe across tight spots at 6,760', 8,914' and 9,739'. 20:00 - 00:00 4.00 CASE P DPRB RUNPRD Continue to RIH with liner from 10,442' to 11,872'. Worked through tight spots at 10,517' and 11,872'. 11/30/2005 00:00 - 03:00 3.00 CASE P RUNPRD Work pipe down from 11,872' to 12,265'. Weight was lost at -11,872'. RIH 9' past casing landing depth to ensure hook hanger went past and wipe the interval numerous times from 12,230' to 12,260' to reduce the drag to aid in the identification of when the hanger would be landed. 03:00 -06:00 3.00 CASE P RUNPRD PU to 12,230'. Slack off and rotate 1/4 tum. Work pipe down to 12,260' and set down -hook hanger on depth. PU to 12,230'. Slack off and rotate 1/4 tum. Work pipe down and set down at 12,260'. POH to 12,230'. Slack off and rotate 1/4 tum. Work pipe down and set down at 12,263'. PU to 12,230'. Slack off and rotate 1/4 tum. Work pipe down and set down at 12,263'. PU to 12,230'. Slack off and rotate 1/4 tum. Work pipe down and set down at 12,260' -believe hook hanger to be on depth, but due to lack of weight and having to work the pipe down it is difficult to tell. PU to 12,230' to re-verify. Slack off and rotate 112 tum. Work pipe down and set down at 12,255' - unexplained result. PU to 12,230' to re-verify. Slack off and rotate 112 tum. Work pipe down and set down at 12,260'. PU to 12,230'. Slack off and rotate 1/2 tum. Work pipe down and set down at 12,263'. PU to 12,230'. Slack off and rotate 1/2 tum. Work pipe dawn and set down at 12,260' -hook hanger in place. Prepare to release running tool. 06:00 - 06:30 0.50 CASE P RUNPRD Drop ball and pump onto seat. Pressure up to 3,500 psi and release from the liner. PU out of the liner top and pressure up to 4,200 psi to shear out the ball seat. 06:30 -08:00 1.50 CASE P RUNPRD Circulate a bottoms up. Pump dry job and prepare to trip out of the hole. MW in - 9.2 ppg, MW out - 9.2 ppg. 08:00.08:15 0.25 CASE P RUNPRD POH standing back 2 stands of 4" DP to 6,215'. 08:15 - 11:30 3.25 CASE P RUNPRD LD 60 joints of 4-3/4" drill collars from 6,215' to 4,371'. 11:30 - 13:00 1.50 CASE P RUNPRD POH standing back 16 stands of 4" HWDP and 31 stands of 4" DP to the top of the running tool. 13:00 - 13:30 0.50 CASE P RUNPRD Make service breaks and LD Baker HR running tool. 13:30 - 14:30 1.00 TIEBAC P OTHCMP RU the rig floor to run LEM ff2. Bring tools and materials to the floor. 14:30 - 17:30 3.00 TIEBAC P OTHCMP PJSM. MU Baker non-4ocating seal assembly with 4.5" L-80 full XO jant from STL pin to IBT-m box, 2 joints of 4.5` 12.6# L-8016T-M liner, 3 x 4.5" pup joints and LEM hanger assembly. RU false rotary table and MU 2-3/8" 8rd EUE inner string. MU Printed: 12/5/2005 1 L•10:45 AM BP EXPLORATION Page 21 of 22 Opelrations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: i 0/24/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From - To Hours Task Code NPT Phase ~ Description of Operations 11/30/2005 14:30 - 17:30 3.00 TIEBAC P OTHCMP baker HR running tool/ZXP packer assembly down to 237' 17:30 - 18:30 1.00 TIEBAC P OTHCMP Slip and cut drilling line. Service the top drive and the crown. 18:30 - 00:00 5.50 TIEBAC P OTHCMP RIH with LEM #2 on 4' HWDP and 4" DP to 6,376', PU - 140K, SO - 75K. Tag the top of the L2 hook on depth at 6,386'. Rotate the string 1!2 tum. RlH to 6,540'. Screw in with the top drive and circulate down and enter the seal assebly. Latch into the hook hanger with the LEM on depth and verify with 30k down and 10k up. Drop ball and pump down onto seat. Pressure up to 4,200 psi to set the packer and release from the LEM. PU to expose dogs. Slack back off and verify release from LEM. PU 30' and get ready to displace over to 9.1 ppg brine. Bottom of Non-locating seal assembly - 6,574', Top of LEM #2 - 6,375', Top of ZXP Liner top packer - 6,349' (11' tieback extension). 12/1/2005 00:00 - 02:00 2.00 TIEBAC P OTHCMP Displace the well over to 9.2 brine. 02:00 - 03:30 1.50 TIEBAC P OTHCMP Clean possum belly, shakers, trough and trip tank of MOBM. 03:30 - 10:30 ~ 7.00 TIEBAC P OTHCMP POH LD 4" DP and 4" HWDP. LD packer setting tool and 2-3/8" inner string. RIH with 9 stands of 4" from the derrick. LD 27 joints of 4" DP. 10:30 - 11:30 1.00 TIEBAC P OTHCMP Flush the BOP stack and pull the wear ring. 11:30 - 13:00 1.50 BUNCO RUNCMP Bring tubing handling equipment to the rig floor. RU tools to run 4.5" 12.6# L-80 TCII completion. Make a dummy run with the landing joint and the tubing hanger and mark pipe. 13:00 - 20:00 7.00 BUNCO RUNCMP PJSM. PU and RIH with 4.5" 12.6# L-80 TCII completion per tally to 2,491 - 4.5" 12.6# L-801ST-M guide shoe, TCII box x IBT-M pin xo, 4.5" TCII X nipple assembly(3.813" ID), 4.5" TCII X nipple assembly w/ RHC-M plug profile (3.813" ID), 1 jt 4.5" 12.6# TCII tubing, 7.625' x 4.5" Premier Packer assembly, Phoenix Jet Pump Sensor assembly, Baker CMD sliding sleeve / Phoenix Discharge Pressure Sensor assembly. RU 1-wire and tie in. Check conductivity -good. Continue to RIH with completion - 2 jts of 4.5' TCII tubing, GLM #1 assembly with DCK shear valve, 2 jts 4.5" TCII tubing, GLM #2 assembly, 27 jts 4.5° TCII tubing, 23 jts of 4.5" TCII tubing to 2,490'. A11 tubing connections utilized Jet Lube Seal Guard thread lubricant and Torque Tumed to 3,850 tt-Ibs. 20:00 - 22:00 2.00 BUNCO RREP RUNCMP Splash plate on the high drum clutch broke. Re-weld into position. 22:00 -00:00 2.00 BUNCO RUNCMP Continue to RIH with 4.5' completion. RIH with 18 jts of 4.5" TC11 tubing to 3,192'. 12/2/2005 00:00 -06:45 6.75 BUNCO RUNCMP Continue to RIH with 4.5" 12.6# L-80 TCII completion from 3,192' to 6,365' to space out W LEG into Tieback. Lay down excess pipe and P/U proper space out pups below last full joint of tubing. P/U and M/U tubing hanger and install 12 ea. blast rings around pup joint below hanger body. Place 1 stop ring below blast rings once they were positioned onto pup, so as to prevent fluid erosion from incoming annulus fluids. RU I-wire through the tubing hanger. Land the tubing on the hanger. Tubing tail located at 6,356'. 06:45 - 07:30 0.75 BUNCO RUNCMP RD the rig floor and clear of all vendor tools. 07:30 -09:00 1.50 BUNCO RUNCMP RU to reverse circulate the well. Reverse circulate 5 bbls of Printed: 72/5/2005 11:10:45 AM BP EXPLORATION Page 22 of 22 Operations Summary Report Legal Well Name: L-250 Common Well Name: L-250 Spud Date: 10124/2005 Event Name: DRILL+COMPLETE Start: 10/23/2005 End: 12/3/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 12/3/2005 Rig Name: NABOBS 9ES Rig Number: Date From-- To Haurs Task Code NPT" Phase Description of Operations 12!212005 07:30 -09:00 1.50 BUNCO RUNCMP 9.2 corrosion inhibited brine chased with 160 bbls of clean brine -spotting the CI brine between the lower GLM and the packer - 3 bpm, 210 psi. 09:00 - 12:00 3.00 BUNCO RUNCMP Drop 1-7/8' ball and roller rod assmbly and allow to seat. Pressure up the inside of the tubing to 4,200 psi to set the Premier packer and then reduce the pressure to 3,500 psi - chart and hold for 30 minutes -good. Bleed the tubing pressure to 2,500 psi and then pressure up on the annulus to 3,500 psi -chart and hold for 30 minutes -good. Bleed off the annulus pressure and then the tubing pressure. Re-pressure up on the annulus and observe the DCK-2 shear at 2,350 psi. Install TWC with T-bar and test from below to 1,000 psi -good. Witness of the tubing and annulus pressure test was done by John Crisp of the AOGCC. 12:00 - 17:00 5.00 BUNCO RUNCMP Blow down all the surface lines and clean the rig of the MOBM. LD tools from the rig floor and pressure was the rig floor to remove MOBM. 17:00 - 21:00 4.00 BOPSU P RUNCMP Remove the top rams, blind rams and the bottom rams from the BOPE. ND BOPE, riser and set back in the cellar. 21:00 -00:00 3.00 BOPSU P RUNCMP NU the adapter flange and tie in with the 1-wire. Test Adapter to 5,000 psi -good. Surface conductivity test of the I-wire was good. 12/3/2005 00:00 - 03:30 3.50 WHSUR P RUNCMP Continue to NU the tree. Test to 5,000 psi -good. Pull TWC with {ubricator. 03:30 - 05:30 2.00 BUNCO RUNCMP RU circulation lines and reverse circulate 90 bbls of corrosion inhibited brine. Blow down all surface fines. 05:30 - 08:30 3.00 BUNCO RUNCMP RU LRHOS. Freeze protect the well with 110 bbls of diesel pumped by LRHOS. Allow to u-tube in place."" While finishing up with the freeze protection app. 1/2 gal. of diesel was released from a hose and leaked onto the rig floor. It was reported to Bill ~ 5700."" 08:30 - 10:30 2.00 WHSUR P RUNCMP Install BPV with Lubricator and test from below to 1,000 psi - good. Install VR plugs in both tubing spool outlets. Rig released to Maintenance ~ 1030 hours. Printed: 12/5/2005 11:10:45 AM Schlumberger L-250L1 Survey Report Report Date: 15-Nov-05 Survey 1 DLS Computation Method: Minimum Curvature / Lubinski Client: BP Exploration Alaska Vertical Section Azimuth: 10.200° Field: Prudhoe Bay Un it - WOA Vertical Section Origin: N 0.000 ft, E 0.000 ft Structure 1 Slot: L-PAD I L-250 (NM-15) TVD Reference Datum: Rotary Table Well: L-250 TVD Reference Elevation: 77.30 ft relative to MSL Borehole: L-250L1 Sea Bed 1 Ground Level Elevation: 48.80 ft relative to MSL UWIIAPI#: 500292328160 Magnetic Declination: 24.418° Survey Name /Date: L-250L1 /November 15, 2005 Total Field Strength: 57577.312 nT Tort 1 AHD 1 DDI 1 ERD ratio: 406.143° 19253. 51 ft 16.992 (2.1 18 Magnetic Dip: 80.848° Grid Coordinate system: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: November 14, 2005 Location Latllong: N 70 21 2.318, W 14919 28.397 Magnetic Declination Model: BGGM 2005 Location Grid NIE Ylx: N 5978285.200 ftUS, E 583192.780 ftUS North Reference: True North Grid Convergence Angle: +0.63611620° Total Corr Mag North -> True North: +24.418° Grid Scale Factor: 0.99990786 Local Coordinates Referenced To: Well Head Comments Measured Inclination Azimuth Sub•Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de d ft ft ft ft ft ft ft de 1100 ft ftUS ftUS RTE 0.00 0.00 0.00 -77.30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5978285.20 583192.78 N 70 21 2.318 W 149 19 28.397 First GYD GC SS 100.00 0.18 72.13 22.70 100.00 0.07 0.16 0.16 0.05 0.15 0.18 5978285.25 583192.93 N 70 21 2.318 W 149 19 28.393 200 00 0.28 91.26 122.70 200.00 0.19 0.55 0.55 0.09 0.54 0.12 5978285.30 583193.32 N 70 21 2.319 W 149 19 28.381 . 300.00 0.33 67.69 222.70 300.00 0.38 1.08 1.07 0.19 1.05 0.13 5978285.41 583193.83 N 70 21 2.320 W 149 19 28.366 400.00 0.48 65.03 322.70 400.00 0.77 1.79 1.77 0.48 1.70 0.15 5978285.70 583194.47 N 70 21 2.323 W 149 19 28.347 500 00 0.38 60.50 422.69 499.99 1.23 2.54 2.51 0.82 2.37 0.11 5978286.05 583195.14 N 70 21 2.326 W 149 19 28.328 . 600 00 4.63 0.90 522.58 599.88 5.42 6.78 5.71 5.02 2.72 4.45 5978290.25 583195.44 N 70 21 2.367 W 149 19 28.317 . 700 00 7.22 2.14 622.04 699.34 15.63 17.10 15.63 15.34 3.02 2.59 5978300.57 583195.63 N 70 21 2.469 W 149 19 28.309 . 800 00 9.47 358.78 720.97 798.27 29.92 31.61 30.00 29.85 3.08 2.30 5978315.07 583195.53 N 70 21 2.611 W 14919 28.307 . 900.00 10.55 0.97 819.45 896.75 47.02 48.99 47.32 47.22 3.06 1.14 5978332.45 583195.31 N 70 21 2.782 W 149 19 28.308 1000 00 12 85 1.98 917.36 994.66 67.06 69.27 67.59 67.49 3.60 2.31 5978352.72 583195.63 N 70 21 2.982 W 149 19 28.292 . Tie-In Survey 1100.00 . 18.01 1.78 1013.73 1091.03 93.38 95.86 94.18 94.08 4.46 5.16 5978379.31 583196.20 N 70 21 3.243 W 149 19 2 MS 1142.48 IFR First MWD 17.42 2.28 1054.19 1131.49 106.17 108.79 107.11 106.99 4.92 1.43 5978392.23 583196.51 N 70 21 3.370 W 149 19 2 _ _ 1238 55 23.54 359.82 1144.15 1221.45 139.32 142.38 140.69 140.58 5.43 6.43 5978425.82 583196.65 N 70 21 3.700 W 149 19 28. . 1333.71 28.06 359.38 1229.80 1307.10 180.02 183.79 182.06 181.98 5.13 4.75 5978467.21 583195.89 N 70 21 4.108 W 149 19 28.247 1426 70 33.77 1.48 1309.55 1386.85 227.09 231.54 229.80 229.73 5.56 6.25 5978514.96 583195.79 N 70 21 4.577 W 14919 28.234 . 1521 00 39.49 3.27 1385.20 1462.50 282.80 287.78 286.03 285.92 7.95 6.17 5978571.16 583197.55 N 70 21 5.130 W 149 19 28.165 . 1615 30 41.59 2.81 1456.86 1534.16 343.62 349.06 347.30 347.12 11.20 2.25 5978632.39 583200.12 N 70 21 5.732 W 14919 28.070 . 1709 51 43.47 4.55 1526.28 1603.58 406.88 412.74 410.95 410.66 15.30 2.35 5978695.97 583203.52 N 70 21 6.357 W 149 19 27.950 . 1803.55 48.15 5.70 1591.81 1669.11 474.03 480.15 478.28 477.80 21.35 5.05 5978763.16 583208.82 N 70 21 7.017 W 149 19 27.773 1897 74 50.17 6.38 1653.41 1730.71 545.09 551.41 549.41 548.66 28.85 2.21 5978834.09 583215.54 N 70 21 7.714 W 149 19 27.554 . 1992 59 50.39 5.96 1714.02 1791.32 617.87 624.36 622.27 621.19 36.69 0.41 5978906.70 583222.57 N 70 21 8.427 W 149 19 27.324 . 2087 57 50 71 5.82 1774.37 1851.67 691.00 697.70 695.55 694.14 44.22 0.36 5978979.73 583229.29 N 70 21 9.145 W 149 19 27.105 . 2182.43 . 50.72 6.03 1834.43 1911.73 764.22 771.13 768.92 767.17 51.80 0.17 5979052.83 583236.05 N 70 21 9.863 W 149 19 26.883 SurveyEditor Ver SP 1.0 Bld( doc40x_56) L-250 (NM-15)\L-250\L-250L1\L-250L1 Generated 11/29/2005 3:11 PM Page 1 of 7 Comments Measured Inclination Azimuth Sub-Sea TVD 7Vp Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de d ft ft ft ft ft ft ft d 1100ft ftUS ftUS o.. nc en nn n ~a ~070~ 9a un FRQ9dR dR N 7n 71 1n 59n W 149 19 26_R43 LL / O.JV 2371.54 2466.47 2561.66 2655.99 2750.38 2842.88 2938.01 3030.50 3124.67 3217.96 3304.80 3377.66 3460.47 3553.53 3646.38 3739.41 3833.63 3926.05 4019.45 4112.37 4204.46 4297.65 4392.61 4485.21 4578.62 4671.65 4764.31 4857.56 4952.03 5045.33 5138.73 5230.90 5324.74 5417.84 5511.05 5603.61 5697.17 5791.86 5884.27 5977.84 :lV.~V 50.42 50.95 51.25 50.76 51.58 54.02 54.48 54.05 53.78 53.69 54.42 54.50 55.12 54.96 54.07 53.06 53.64 51.52 51.26 51.19 51.42 51.71 51.45 53.60 54.11 53.80 53.21 52.79 52.51 51.88 54.44 54.90 54.48 53.82 55.75 57.96 60.88 63.76 66.66 70.06 V.Vi 6.76 ~VNt.~v 1954.02 ~v~c.r-v 2031.32 v..... ... 910.42 .. .~. .. 917.63 _.-.-_ 915.29 ______ 912.72 _ 68.46 0.61 5979198.54 583251.10 N 70 21 11.294 W 149 19 26.396 6.67 2014.16 2091.46 983.73 991.07 988.67 985.66 77.05 0.56 5979271.56 583258.87 N 70 21 12.012 W 149 19 26.145 6.75 2073.94 2151.24 1057.67 1065.15 1062.70 1059.24 85.70 0.32 5979345.22 583266.71 N 70 21 12.735 W 149 19 25.892 6.72 2133.30 2210.60 1130.85 1138.46 1135.96 1132.04 94.30 0.52 5979418.11 583274.50 N 70 21 13.451 W 149 19 25.641 6.48 2192.48 2269.78 1204.24 1211.99 1209.46 1205.09 102.75 0.89 5979491.24 583282.14 N 70 21 14.170 W 149 19 25.394 5.92 2248.40 2325.70 1277.73 1285.67 1283.11 1278.33 110.70 2.68 5979564.56 583289.27 N 70 21 14.890 W 149 19 25.161 5.76 2303.98 2381.28 1354.71 1362.87 1360.31 1355.13 118.56 0.50 5979641.44 583296.27 N 70 21 15.645 W 149 19 24.931 5.73 2358.00 2435.30 1429.56 1437.95 1435.38 1429.83 126.07 0.47 5979716.21 583302.96 N 70 21 16.380 W 149 19 24.712 5.75 2413.46 2490.76 1505.43 1514.05 1511.48 1505.55 133.68 0.29 5979792.00 583309.73 N 70 21 17.125 W 149 19 24.489 83 5 2468 65 95 2545 1580.43 1589.27 1586.69 1580.39 141.27 0.12 5979866.91 583316.49 N 70 21 17.861 W 149 19 24.267 . . . 5.76 2519.62 2596,92 1650.52 1659.57 1656.99 1650.33 148.37 0.84 5979936.92 583322.81 N 70 21 18.549 W 14919 2 7.88 2561.98 2639.28 1709.70 1718.86 1716.25 1709.19 155.41 2.37 5979995.85 583329.19 N 70 21 19.127 W 149 19 23. 11.54 2609.71 2687.01 1777.36 1786.53 1783.70 1775.88 166.83 3.69 5980062.66 583339.87 N 70 21 19.783 W 149 19 23.520 16.27 2663.05 2740.35 1853.43 1862.78 1859.12 1849.88 185.15 4.17 5980136.85 583357.36 N 70 21 20.511 W 149 19 22.985 21.14 2716.97 2794.27 1928.17 1938.37 1932.83 1921.46 209.36 4.38 5980208.68 583380.78 N 70 21 21.215 W 149 19 22.277 24.30 2772.23 2849.53 2001.22 2013.21 2004.69 1990.49 238.25 2.94 5980278.02 583408.90 N 70 21 21.894 W 149 19 21.432 25.65 2828.48 2905.78 2074.31 2088.80 2076.66 2059.01 270.17 1.30 5980346.88 583440.05 N 70 21 22.568 W 149 19 20.499 27.14 2884.63 2961.93 2144.79 2162.19 2146.22 2124.75 302.78 2.63 5980412.98 583471.93 N 70 21 23.214 W 149 19 19.546 27.27 2942.92 3020.22 2214.58 2235.18 2215.32 2189.66 336.15 0.30 5980478.25 583504.57 N 70 21 23.853 W 149 19 18.570 26.85 3001.11 3078.41 2283.91 2307.62 2284.19 2254.17 369.11 0.36 5980543.12 583536.80 N 70 21 24.487 W 149 19 17.607 26.73 3058.68 3135.98 2352.79 2379.49 2352.84 2318.33 401.50 0.27 5980607.63 583568.48 N 70 21 25.118 W 149 19 16.659 29.80 3116.62 3193.92 2422.18 2452.48 2422.19 2382.61 436.06 2.60 5980672.28 583602.33 N 70 21 25.750 W 149 19 15.649 30.78 3175.63 3252.93 2492.05 2526.88 2492.26 2446.85 473.59 0.85 5980736.93 583639.13 N 70 21 26.382 W 149 19 14.552 29.48 3231.97 3309.27 2561.13 2600.36 2561.79 2510.41 510.46 2.58 5980800.89 583675.30 N 70 21 27.007 W 149 19 13.474 29.11 3287.06 3364.36 2632.41 2675.79 2633.71 2576.20 547.37 0.63 5980867.07 583711.47 N 70 21 27.654 W 149 19 12.394 29.11 3341.80 3419.10 2703.57 2751.01 2705.69 2641.92 583.96 0.33 5980933.19 583747.33 N 70 21 28.300 W 149 19 11.324 29.31 3396.91 3474.21 2774.00 2825.50 2777.10 2706.93 620.32 0.66 5980998.60 583782.95 N 70 21 28.940 W 149 19 10.262 29.02 3453.03 3530.33 2844.43 2899.98 2848.67 2771.96 656.61 0.51 5981064.02 583818.51 N 70 21 29.579 W 149 19 9 29.57 3510.35 3587.65 2915.40 2975.07 2920.94 2837.46 693.35 0.55 5981129.91 583854.53 N 70 21 ~ 30.223 W 149 19 29.69 3567.54 3644.84 2984.92 3048.79 2991.91 2901.54 729.80 0.68 5981194.39 583890.26 N 70 21 30.854 W 149 19 29.12 3623.53 3700.83 3055.50 3123.53 3064.07 2966.65 766.49 2.78 5981259.90 583926.22 N 70 21 31.494 W 149 19 5.987 28.89 3676.83 3754.13 3126.68 3198.73 3136.92 3032.42 802.95 0.54 5981326.06 583961.94 N 70 21 32.141 W 149 19 4.921 28.53 3731.07 3808.37 3199.30 3275.31 3211.32 3099.58 839.74 0.55 5981393.62 583997.98 N 70 21 32.801 W 149 19 3.845 28.79 3785.60 3862.90 3270.88 3350.77 3284.74 3165.80 875.93 0.74 5981460.23 584033.43 N 70 21 33.452 W 149 19 2.787 28.85 3839.35 3916.65 3343.04 3426.92 3358.87 3232.51 912.64 2.07 5981527.34 584069.39 N 70 21 34.109 W 149 19 1.714 28.05 3889.95 3967.25 3416.64 3504.41 3434.52 3300.65 949.55 2.49 5981595.88 584105.54 N 70 21 34.779 W 149 19 0.634 28.88 3937.54 4014.84 3493.11 3584.95 3513.22 3371.45 987.94 3.21 5981667.09 584143.14 N 70 21 35.475 W 149 18 59.511 30.59 3981.53 4058.83 3572.12 3668.79 3594.82 3444.24 1029.54 3.44 5981740.33 584183.93 N 70 21 36.191 W 149 18 58.295 32.01 4020.27 4097.57 3650.38 3752.68 3676.03 3515.91 1073.13 3.43 5981812.47 584226.71 N 70 21 36.895 W 149 18 57.020 33.79 4054.78 4132.08 3730.59 3839.64 3759.72 3588.91 1120.38 4.04 5981885.99 584273.14 N 70 21 37.613 W 149 18 55.638 SurveyEditor Ver SP 1.0 Bld( doc40x 56) L-250 (NM-15)\L-250\L-250L1\L-250L1 Generated 11/29/2005 3:11 PM Page 2 of 7 Comments Measured Inclination Azimuth Sub-SeaTVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft - ft _ ft ^ ^^ ^ k '^ ft w ft ^ ' de 1100 ft ftUS oancn G0 ftUS GOA']~~ AD AI 7n 71 1A '21'2 \A/'Id0 1R /id 171 Tie-In Survey Top Whipstock (Interp) Base Window (Blind) Blind (Inc Only) Last Blind (Inc Only) First MWD+IFR+MS bU / "1.3Z 6164.43 6257.98 6351.55 6443.94 6538.08 6606.00 6618.00 6650.10 6681.08 6711.56 6742.10 6773.27 6804.91 6836.15 6867.67 6898.94 6930.29 6961.06 6992.65 7021.97 7053.15 7084.90 7116.06 7148.24 7179.41 7210.54 7241.57 7273.47 7303.40 7334.29 7365.65 7397.28 7428.81 7460.15 7491.40 7522.47 7552.72 7584.51 7614.95 7645.87 7677.47 /3.10 75.10 76.40 74.80 73.29 74.98 77.08 78.89 80.99 85.21 89.73 94.87 98.21 98.44 98.15 98.33 99.93 99.73 96.66 92.35 87.94 87.91 85.86 84.46 88.16 89.90 88.66 89.89 89.02 87.62 85.83 85.39 88.49 89.22 89.72 89.10 88.07 89.22 89.05 89.36 89.53 87.36 30-Uy 34.05 4V04.L/ 4109.73 '410I.a1 4187.03 JvI I.YV 3893.04 JJCV.JJ 4017.89 Jv-r~.,iv 3930.38 vvv...vv 3735.80 ~~. v.v~ 1221.36 ...... 2.34 .......__,...._ 5982033.97 __.___. ._ 584372.47 .._ N 70 __ 21 __.___ 39.058 W 149 18 52.685 29.96 4132.76 4210.06 3977.20 4108.56 4018.44 3812.67 1269.39 4.46 5982111.37 584419.65 N 70 21 39.814 W 149 18 51.280 26.84 4156.04 4233.34 4063.28 4199.18 4107.71 3892.38 1312.50 3.65 5982191.54 584461.86 N 70 21 40.598 W 149 18 50.019 21.48 4181.45 4258.75 4149.45 4288.01 4196.09 3973.38 1348.85 5.81 5982272.94 584497.31 N 70 21 41.394 W 149 18 48.956 15.33 4207.21 4284.51 4239.03 4378.55 4286.59 4059.26 1377.41 6.53 5982359.12 584524.91 N 70 21 42.239 W 149 18 48.120 11.97 4223.61 4300.91 4304.80 4444.46 4352.23 4123.30 1392.95 5.71 5982423.32 584539.74 N 70 21 42.869 W 14918 47.665 11.31 4226.11 4303.41 4316.54 4456.19 4363.88 4134.80 1395.32 16.01 5982434.84 584541.98 N 70 21 42.982 W 149 18 47.596 12.00 4231.71 4309.01 4348.13 4487.80 4395.25 4165.75 1401.70 6.88 5982465.86 584548.02 N 70 21 43.286 W 149 18 47.409 12.66 4235.43 4312.73 4378.86 4518.55 4425.82 4195.79 1408.27 13.78 5982495.97 584554.25 N 70 21 43.581 W 149 18 47.217 13 30 78 4236 4314 08 4409.26 4548.99 4456.12 4225.45 1415.11 14.98 5982525.70 584560.76 N 70 21 43.873 W 149 18 47.017 . 13.95 . 4235.55 . 4312.85 4439.72 4579.49 4486.51 4255.10 1422.29 16.96 5982555.42 584567.61 N 70 21 44.165 W 149 18 14.61 4232.00 4309.30 4470.60 4610.46 4517.39 4285.10 1429.93 10.92 5982585.51 584574.92 N 70 21 44.460 W 149 18 14.46 4227.42 4304.72 4501.82 4641.76 4548.62 4315.41 1437.79 0.87 5982615.90 584582.44 N 70 21 44.758 W 149 18 46.3 3 13.69 4222.92 4300.22 4532.66 4672.68 4579.45 4345.39 1445.30 2.61 5982645.96 584589.62 N 70 21 45.053 W 149 18 46.133 12.75 4218.40 4295.70 4563.81 4703.87 4610.52 4375.76 1452.44 3.01 5982676.40 584596.42 N 70 21 45.351 W 149 18 45.925 9.19 4213.44 4290.74 4594.67 4734.74 4641.13 4406.06 1458.31 12.35 5982706.77 584601.95 N 70 21 45.649 W 149 18 45.753 5.69 4208.08 4285.38 4625.52 4765.63 4671.46 4436.69 1462.31 11.02 5982737.43 584605.61 N 70 21 45,951 W 149 18 45.635 4.19 4203.70 4281.00 4655.85 4796.09 4701.10 4467.03 1464.93 11.08 5982767.79 584607.90 N 70 21 46.249 W 149 18 45.559 3.18 4201.21 4278.51 4687.13 4827.57 4731.59 4498.45 1466.96 14.01 5982799.23 584609.57 N 70 21 46.558 W 14918 45.499 2.30 4201.14 4278.44 4716.19 4856.88 4759.87 4527.73 1468.36 15.34 5982828.52 584610.65 N 70 21 46.846 W 14918 45.458 2.49 4202.27 4279.57 4747.06 4888.04 4789.89 4558.86 1469.66 0.62 5982859.66 584611.60 N 70 21 47.152 W 149 18 45.420 1.10 4203.99 4281.29 4778.42 4919.74 4820.36 4590.54 1470.65 7.80 5982891.35 584612.24 N 70 21 47.464 W 149 18 45.391 357.75 4206.62 4283.92 4808.92 4950.79 4849.84 4621.58 1470.34 11.62 5982922.39 584611.59 N 70 21 47.769 W 149 18 45.400 354.37 4208.70 4286.00 4840.05 4982.90 4879.71 4653.61 1468.13 15.56 5982954.39 584609.03 N 70 21 48.084 W 14918 45.464 351.99 4209.22 4286.52 4869.85 5014.06 4908.12 4684.55 1464.43 9.46 5982985.28 584604.98 N 70 21 48.388 W 149 18 45.572 348.99 4209.61 4286.91 4899.15 5045.19 4935.90 4715.25 1459.29 10.43 5983015.91 584599.50 N 70 21 48.690 W 149 18 45.722 348.04 4210.01 4287.31 4927.98 5076.22 4963.14 4745.65 1453.11 5.01 5983046.25 584592.99 N 70 21 48.989 W 149 18 45.903 344.67 4210.31 4287.61 4957.15 5108.12 4990.60 4776.65 1445.59 10.91 5983077.15 584585.12 N 70 21 49.294 W 149 18 46.122 341.60 4211.19 4288.49 4983.78 5138.03 5015.51 4805.27 1436.91 11.27 5983105.68 584576.12 N 70 21 49.576 W 149 18 4 338.80 4212.95 4290.25 5010.49 5168.87 5040.35 4834.29 1426.47 10.75 5983134.57 584565.36 N 70 21 49.861 W 149 18 4 336.71 4215.35 4292.65 5036.88 5200.14 5064.79 4863.23 1414.63 6.79 5983163.37 584553.20 N 70 21 50.146 W 149 18 47.027 337.23 4217.04 4294.34 5063.29 5231.72 5089.29 4892.29 1402.28 9.94 5983192.29 584540.53 N 70 21 50.431 W 149 18 47.388 337.44 4217.67 4294.97 5089.77 5263.24 5113.94 4921.38 1390.13 2.41 5983221.24 584528.06 N 70 21 50.718 W 14918 47.744 337.95 4217.96 4295.26 5116.20 5294.58 5138.65 4950.37 1378.24 2.28 5983250.10 584515.85 N 70 21 51.003 W 149 18 48.091 338.27 4218.28 4295.58 5142.67 5325.83 5163.49 4979.37 1366.59 2.23 5983278.96 584503.88 N 70 21 51.288 W 149 18 48.432 339.70 4219.05 4296.35 5169.24 5356.89 5188.54 5008.36 1355.45 5.67 5983307.83 584492.42 N 70 21 51.573 W 149 18 48.757 341.64 4219.77 4297.07 5195.55 5387.13 5213.49 5036.90 1345.44 7.45 5983336.25 584482.09 N 70 21 51.854 W 149 18 49.050 343.17 4220.25 4297.55 5223.67 5418.92 5240.31 5067.19 1335.83 4.84 5983366.43 584472.15 N 70 21 52.152 W 149 18 49.331 342.74 4220.67 4297.97 5250.73 5449.36 5266.20 5096.29 1326.91 1.74 5983395.43 584462.91 N 70 21 52.438 W 149 18 49.592 343.85 4220.97 4298.27 5278.30 5480.27 5292.65 5125.91 1318.02 3.63 5983424.94 584453.69 N 70 21 52.729 W 149 18 49.851 344.52 4221.83 4299.13 5306.68 5511.86 5319.96 5156.30 1309.41 7.19 5983455.23 584444.75 N 70 21 53.028 W 149 18 50.103 SurveyEditor Ver SP 1.0 Bld( doc40x_56) L-250 (NM-15)\L-250\L-250L1\L-250L7 Generated 11/29/2005 3:11 PM Page 3 of 7 Comments Measured Inclination Azimuth Sub•Sea TVD TVD Vertical Along Nole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft d d ft ft ft ft ft ft ft de 1100 ft ftUS ftUS n nn~ ~ni un ao cn non i/U6./L 7740.08 p/.JO 86.92 J'4J.LJ 345.30 YLLJ.L/ 4224.83 YJVV.JI 4302.13 JJJY.JV 5363.30 JJYV.vv 5574.40 JVTI.1~/ 5374.65 v~vv.-*v 5216.72 .vv ~..-. 1293.30 ~.~. 1.42 .....-~......~. 5983515.47 ~~._~.-. 584427.97 ---_-~ -_-_-~ -- --- -_ N 70 21 53.622 W 149 18 -- 50 --- .574 7771.64 86.46 345.01 4226.65 4303.95 5391.85 5605.91 5402.29 5247.18 1285.23 1.72 5983545.83 584419.56 N 70 21 53.922 W 14918 50 .810 7802.92 88.14 345.21 4228.13 4305.43 5420.14 5637.15 5429.73 5277.38 1277.20 5.41 5983575.93 584411.20 N 70 21 54.219 W 149 18 51 .044 7833.49 91.67 346.70 4228.18 4305.48 5448.01 5667.71 5456.82 5307.03 1269.78 12.53 5983605.50 584403.45 N 70 21 54.511 W 149 18 51 .261 7864.72 91.61 347.02 4227.28 4304.58 5476.67 5698.93 5484.75 5337.43 1262.69 1.04 5983635.81 584396.02 N 70 21 54.810 W 14918 51 .469 7895.06 91.44 348.49 4226.48 4303.78 5504.70 5729.26 5512.13 5367.06 1256.25 4.88 5983665.37 584389.26 N 70 21 55.101 W 149 18 51 .656 7926.59 92.01 353.37 4225.53 4302.83 5534.44 5760.78 5541.30 5398.18 1251.29 15.58 5983696.43 584383.95 N 70 21 55.407 W 14918 51 .802 7957.07 90.80 356.87 4224.78 4302.08 5563.86 5791.25 5570.29 5428.53 1248.69 12.15 5983726.75 584381.02 N 70 21 55.706 W 14918 51 .877 7988.36 92.27 359.10 4223.94 4301.24 5594.43 5822.52 5600.52 5459.79 1247.59 8.53 5983757.99 584379.57 N 70 21 56.013 W 149 18 51 .909 8017 36 37 92 359 35 4222.77 4300.07 5622.88 5851.50 5628.68 5488.76 1247.20 0.93 5983786.95 584378.86 N 70 21 56.298 W 14918 51 .921 . 8048.44 . 92.15 . 358.82 4221.54 4298.84 5653.35 5882.56 5658.85 5519.81 1246.71 1.85 5983817.99 584378.02 N 70 21 56.603 W 149 18 5~ 8080.23 91.89 359.05 4220.42 4297.72 5684.51 5914.33 5689.71 5551.58 1246.12 1.09 5983849.75 584377.07 N 70 21 56.916 W 14918 5 8111.93 91.22 359.00 4219.56 4296.86 5715.59 5946.02 5720.51 5583.26 1245.58 2.12 5983881.42 584376.18 N 70 21 57.227 W 14918 51 .968 8143.13 89.93 356.59 4219.25 4296.55 5746.06 5977.21 5750.68 5614.43 1244.38 8.76 5983912.57 584374.64 N 70 21 57.534 W 149 18 52 .003 8175.23 88.69 356.98 4219.63 4296.93 5777.28 6009.31 5781.59 5646.48 1242.58 4.05 5983944.59 584372.48 N 70 21 57.849 W 14918 52 .055 8206.40 86.45 355.73 4220.95 4298.25 5807.52 6040.45 5811.52 5677.56 1240.60 8.23 5983975.64 584370.16 N 70 21 58.155 W 149 18 52 .113 8236.53 86.69 355.96 4222.76 4300.06 5836.65 6070.53 5840.36 5707.55 1238.42 1.10 5984005.61 584367.65 N 70 21 58.450 W 14918 52 .176 8268.20 87.75 357.67 4224.29 4301.59 5867.43 6102.16 5870.86 5739.14 1236.66 6.35 5984037.17 584365.54 N 70 21 58.760 W 14918 52 .228 8299.21 87.54 358.27 4225.57 4302.87 5897.71 6133.14 5900.90 5770.10 1235.56 2.05 5984068.12 584364.10 N 70 21 59.065 W 149 18 52 .260 8330.57 87.63 359.16 4226.89 4304.19 5928.41 6164.47 5931.39 5801.42 1234.86 2.85 5984099.43 584363.05 N 70 21 59.373 W 14918 52 .280 8361.83 87.41 358.94 4228.24 4305.54 5959.05 6195.70 5961.83 5832.65 1234.34 0.99 5984130.64 584362.18 N 70 21 59.680 W 149 18 52 .295 8392.35 87.40 359.70 4229.62 4306.92 5988.99 6226.19 5991.58 5863.14 1233.98 2.49 5984161.12 584361.48 N 70 21 59.980 W 149 18 52 .305 8424.08 88.26 359.49 4230.83 4308.13 6020.16 6257.90 6022.57 5894.84 1233.76 2.79 5984192.82 584360.91 N 70 22 0.292 W 149 18 52 .312 8454.65 85.31 0.20 4232.54 4309.84 6050.18 6288.42 6052.43 5925.36 1233.67 9.92 5984223.33 584360.48 N 70 22 0.592 W 149 18 52 .314 8485.91 86.50 2.10 4234.77 4312.07 6080.97 6319.60 6083.07 5956.53 1234.30 7.16 5984254.51 584360.76 N 70 22 0.898 W 149 18 52 .296 8515.93 88.16 6.09 4236.17 4313.47 6110.78 6349.58 6112.79 5986.44 1236.44 14.38 5984284.43 584362.57 N 70 22 1.193 W 149 18 52 .233 8546.97 89.02 10.70 4236.93 4314.23 6141.79 6380.61 6143.76 6017.13 1240.97 15.10 5984315.16 584366.76 N 70 22 1.494 W 149 18 52 .100 8578.45 85.51 11.65 4238.44 4315.74 6173.22 6412.05 6175.20 6047.97 1247.06 11.55 5984346.07 584372.51 N 70 22 1.798 W 149 18 51 8610.32 84.81 13.24 4241.13 4318.43 6204.95 6443.81 6206.95 6078.98 1253.91 5.43 5984377.15 584379.01 N 70 22 2.103 W 149 18 5 8640.97 84.59 13.11 4243.96 4321.26 6235.43 6474.33 6237.46 6108.69 1260.86 0.83 5984406.94 584385.63 N 70 22 2.395 W 149 18 5 8671.37 85.06 11.07 4246.70 4324.00 6265.69 6504.61 6267.73 6138.30 1267.20 6.86 5984436.61 584391.64 N 70 22 2.686 W 149 18 51 .332 8702,56 86.71 8.34 4248.94 4326.24 6296.79 6535:71 6298.82 6168.96 1272.45 10.21 5984467.32 584396.55 N 70 22 2.988 W 149 18 51 .179 8733.75 88.01 6.79 4250.37 4327.67 6327.91 6566.87 6329.90 6199.84 1276.55 6.48 5984498.25 584400.30 N 70 22 3.291 W 149 18 51 .059 8764.44 88.41 7.13 4251.33 4328.63 6358.54 6597.55 6360.47 6230.29 1280.27 1.71 5984528.73 584403.68 N 70 22 3.591 W 149 18 50 .950 8794.51 88.13 5.93 4252.24 4329.54 6388.53 6627.60 6390.41 6260.15 1283.68 4.10 5984558.63 584406.77 N 70 22 3.884 W 149 18 50 .850 8825.52 88.87 2.80 4253.05 4330.35 6419.37 6658.60 6421.16 6291.06 1286.04 10.37 5984589.55 584408.78 N 70 22 4.188 W 149 18 50 .781 8857.33 88.83 2.12 4253.69 4330.99 6450.88 6690.40 6452.57 6322.83 1287.41 2.14 5984621.34 584409.80 N 70 22 4.501 W 149 18 50 .741 8889.29 88.67 3.13 4254.39 4331.69 6482.55 6722.36 6484.14 6354.75 1288.87 3.20 5984653.27 584410.91 N 70 22 4.815 W 14918 50 .698 8920.46 88.10 2.66 4255.27 4332.57 6513.46 6753.51 6514.95 6385.87 1290.44 2.37 5984684.40 584412.13 N 70 22 5.121 W 149 18 50 .651 8951.40 87.48 1.27 4256.46 4333.76 6544.06 6784.43 6545.45 6416.76 1291.50 4.92 5984715.30 584412.85 N 70 22 5.425 W 149 18 50 .620 8981.16 85.99 358.47 4258.16 4335.46 6573.28 6814.14 6574.56 6446.47 1291.44 10.64 5984745.00 584412.45 N 70 22 5.717 W 149 18 50 .622 SurveyEditor Ver SP 1.0 Bld( doc40x 56) L-250 (NM-15)\L-2501L-250L1\L-250L1 Generated 11/29/2005 3:11 PM Page 4 of 7 Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Alon Hole g Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure (ft) (deg) (dea) (ft) (ft) (ft) (ftl (ftl (ft) (ft) (deg1700ft) (ftUS) (ftUS) 9012.54 85.77 357.18 4260.41 4337.71 6603.85 6845.44 6604.99 6477.75 1290.25 4.16 5984776.26 584410.92 N 70 22 6.024 W 149 18 50. 657 9044.13 85.37 357.10 4262.85 4340.15 6634.54 6876.94 6635.54 6509.20 1288.68 1.29 5984807.70 584409.00 N 70 22 6.334 W 149 18 50. 702 9074.57 85.25 357.63 4265.34 4342.64 6664.12 6907.27 6665.00 6539.51 1287.28 1.78 5984837.98 584407.27 N 70 22 6.632 W 149 18 50. 743 9105.97 86.68 357.41 4267.55 4344.85 6694.67 6938.60 6695.45 6570.80 1285.93 4.61 5984869.25 584405.57 N 70 22 6.940 W 149 18 50. 783 9136.69 88.51 358.48 4268.84 4346.14 6724.66 6969.29 6725.34 6601.47 1284.83 6.90 5984899.91 584404.12 N 70 22 7.241 W 149 18 50. 815 9167.42 89.89 359.13 4269.27 4346.57 6754.78 7000.01 6755.38 6632.19 1284.19 4.96 5984930.62 584403.14 N 70 22 7.543 W 149 18 50. 833 9199.09 89.50 359.34 4269.44 4346.74 6785.88 7031.68 6786.39 6663.86 1283.76 1.40 5984962.27 584402.37 N 70 22 7.855 W 149 18 50. 845 9230.08 89.14 359.60 4269.80 4347.10 6816.32 7062.67 6816.76 6694.85 1283.48 1.43 5984993.25 584401.74 N 70 22 8.160 W 149 18 50. 854 9261.09 89.33 359.68 4270.22 4347.52 6846.80 7093.68 6847.18 6725.85 1283.28 0.66 5985024.25 584401.20 N 70 22 8.464 W 149 18 50. 859 9291.86 88.79 359.28 4270.72 4348.02 6877.03 7124.44 6877.35 6756.62 1283.00 2.18 5985055.01 584400.58 N 70 22 8.767 W 149 18 50. 867 9322 39 87 93 358 89 4271.60 4348.90 6906.98 7154.96 6907.24 6787.13 1282.52 3.09 5985085.51 584399.75 N 70 22 9.067 W 149 18 50. 881 . . . 9352.78 88.84 358.32 4272.45 4349.75 6936.74 7185.34 6936.95 6817.50 1281.78 3.53 5985115.87 584398.68 N 70 22 9.366 W 149 18 5 ~ 9383.75 88.13 357.71 4273.27 4350.57 6967.00 7216.30 6967.16 6848.44 1280.70 3.02 5985146.79 584397.26 N 70 22 9.670 W 149 18 50. 4 9414.83 89.13 356.76 4274.01 4351.31 6997.27 7247.37 6997.39 6879.47 1279.21 4.44 5985177.80 584395.42 N 70 22 9.975 W 149 18 50 .978 9445.91 90.05 357.85 4274.24 4351.54 7027.57 7278.45 7027.65 6910.52 1277.74 4.59 5985208.83 584393.61 N 70 22 10.281 W 149 18 51. 020 9477.46 91.49 356.50 4273.81 4351.11 7058.30 7309.99 7058.35 6942.02 1276.19 6.26 5985240.31 584391.71 N 70 22 10.590 W 149 18 51 .066 9508.61 91.88 356.21 4272.90 4350.20 7088.54 7341.13 7088.56 6973.10 1274.21 1.56 5985271.36 584389.38 N 70 22 10.896 W 14918 51 .123 9539.80 91.27 356.13 4272.04 4349.34 7118.78 7372.31 7118.79 7004.21 1272.13 1.97 5985302.44 584386.96 N 70 22 11.202 W 149 18 51. 184 9571.56 91.16 355.94 4271.37 4348.67 7149.57 7404.06 7149.57 7035.88 1269.93 0.69 5985334.08 584384.41 N 70 22 11.514 W 14918 51 .248 9602.65 91.00 355.91 4270.78 4348.08 7179.70 7435.15 7179.70 7066.89 1267.72 0.52 5985365.06 584381.86 N 70 22 11.819 W 149 18 51 .313 9633.87 90.41 357.90 4270.40 4347.70 7210.07 7466.36 7210.08 7098.06 1266.04 6.65 5985396.21 584379.82 N 70 22 12.125 W 14918 51 .362 9665.21 90.32 359.25 4270.20 4347.50 7240.77 7497.70 7240.79 7129.39 1265.26 4.32 5985427.52 584378.70 N 70 22 12.433 W 149 18 51 .384 9695.60 91.19 359.27 4269.80 4347.10 7270.60 7528.09 7270.64 7159.77 1264.87 2.86 5985457.90 584377.97 N 70 22 12.732 W 149 18 51 .396 9726.57 91.24 359.19 4269.14 4346.44 7301.00 7559.05 7301.06 7190.73 1264.45 0.30 5985488.85 584377.21 N 70 22 13.037 W 149 18 51 .408 9757.77 90.90 359.44 4268.56 4345.86 7331.64 7590.25 7331.72 7221.92 1264.08 1.35 5985520.03 584376.49 N 70 22 13.343 W 149 18 51 .418 9789.03 90.78 359.44 4268.10 4345.40 7362.34 7621.50 7362.46 7253.18 1263.77 0.38 5985551.28 584375.84 N 70 22 13.651 W 149 18 51 .427 9820.39 90.42 359.76 4267.77 4345.07 7393.17 7652.86 7393.31 7284.54 1263.55 1.54 5985582.63 584375.27 N 70 22 13.959 W 149 18 51 .433 9851.39 90.33 0.38 4267.57 4344.87 7423.68 7683.86 7423.86 7315.54 1263.59 2.02 5985613.62 584374.96 N 70 22 14.264 W 149 18 51 .432 9882.03 91.28 359.76 4267.14 4344.44 7453.84 7714.50 7454.06 7346.17 1263.63 3.70 5985644.26 584374.66 N 70 22 14.565 W 149 18 5 9912.50 87.92 355.81 4267.35 4344.65 7483.59 7744.96 7483.86 7376.61 1262.45 17.02 5985674.68 584373.15 N 70 22 14.865 W 149 18 9943.12 87.20 355.14 4268.65 4345.95 7513.17 7775.55 7513.52 7407.11 1260.04 3.21 5985705.14 584370.39 N 70 22 15.165 W 149 18 5 9974.43 88.87 354.40 4269.73 4347.03 7543.34 7806.84 7543.76 7438.27 1257.18 5.83 5985736.26 584367.20 N 70 22 15.471 W 149 18 51 .619 10005.71 93.11 355.10 4269.19 4346.49 7573.47 7$38.11 7573.99 7469.40 1254.32 13.74 5985767.36 584363.99 N 70 22 15.777 W 149 18 51 .703 10037.12 93.50 356.97 4267.37 4344.67 7603.88 7869.47 7604.48 7500.68 1252.16 6.07 5985798.62 584361.47 N 70 22 16.085 W 149 18 51 .766 10067.90 92.98 357.17 4265.64 4342.94 7633.81 7900.20 7634.50 7531.37 1250.58 1.81 5985829.28 584359.56 N 70 22 16.387 W 149 18 51 .812 10099.44 92.01 356.79 4264.26 4341.56 7664.48 7931.71 7665.27 7562.84 1248.92 3.30 5985860.73 584357.55 N 70 22 16.696 W 149 18 51 .860 10130.37 91.74 356.03 4263.25 4340.55 7694.50 7962.62 7695.40 7593.69 1246.99 2.61 5985891.55 584355.28 N 70 22 17.000 W 149 18 51 .917 10161.19 91.14 355.75 4262.48 4339.78 7724.36 7993.44 7725.37 7624.42 1244.78 2.15 5985922.26 584352.73 N 70 22 17.302 W 14918 51 .981 10192.91 90.99 355.52 4261.89 4339.19 7755.05 8025.15 7756.19 7656.05 1242.37 0.87 5985953.85 584349.96 N 70 22 17.613 W 149 18 52 .051 10224.17 89.69 356.83 4261.70 4339.00 7785.38 8056.41 7786.65 7687.23 1240.28 5.90 5985985.01 584347.53 N 70 22 17.920 W 14918 52 .112 10254.76 88.94 356.14 4262.07 4339.37 7815.09 8087.00 7816.49 7717.76 1238.41 3.33 5986015.51 584345.32 N 70 22 18.220 W 149 18 52 .167 SurveyEditor Ver SP 1.0 Bld(doc40x_56) L-250 (NM-15)\L-250\L-250L1\L-250L1 Generated 11/29/2005 3:11 PM Page 5 of 7 Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft d d ft ft _ ft _ ft ft ft ft de 1700ft c^QUSAC ^' coUSeo ~~ ~i ~n oo ~n aon ~ni eeo ~n ~~ ~z~ 1UL80.4U 10316.13 Oo.4J 88.30 JUU.vI 355.04 wcvc.i ~ 4263.65 wgwv.vi 4340.95 +..+ 7874.39 ,.. 8148.34 .~~.~~ 7876.09 -~.~. 7778.91 ._--.-- 1233.41 -._. 0.43 _____ ._.__ 5986076.59 10345.93 87.75 355.07 4264.67 4341.97 7903.13 8178.13 7904.99 7808.58 1230.84 1.85 5986106.23 10377.63 84.49 355.35 4266.82 4344.12 7933.68 8209.75 7935.71 7840.09 1228.20 10.32 5986137.71 10408.91 83.24 355.84 4270.16 4347.46 7963.78 8240.85 7965.98 7871.10 1225.81 4.29 5986168.68 10440.94 85.26 356.35 4273.37 4350.67 7994.68 8272.72 7997.07 7902.89 1223.64 6.50 5986200.45 10472.29 88.89 358.09 4274.97 4352.27 8025.19 8304.02 8027.73 7934.16 1222.13 12.84 5986231.69 10503.16 90.12 358.93 4275.24 4352.54 8055.41 8334.89 8058.11 7965.02 1221.32 4.82 5986262.54 10534.93 91.89 358.47 4274.68 4351.98 8086.54 8366.65 8089.39 7996.77 1220.60 5.76 5986294.28 10565.83 90.69 357.18 4273.98 4351.28 8116.71 8397.55 8119.73 8027.64 1219.43 5.70 5986325.13 10597.62 89.74 356.75 4273.86 4351.16 8147.66 8429.33 8150.87 8059.39 1217.75 3.28 5986356.85 10628.72 89.85 356.13 4273.98 4351.28 8177.86 8460.43 8181.27 8090.43 1215.82 2.02 5986387.86 10660.35 89.15 356.75 4274.25 4351.55 8208.59 8492.06 8212.20 8121.99 1213.85 2.96 5986419.40 10691.40 88.69 357.63 4274.84 4352.14 8238.83 8523.11 8242.64 8153.00 1212.33 3.20 5986450.39 10722.01 89.24 357.89 4275.39 4352.69 8268.72 8553.71 8272.72 8183.58 1211.13 1.99 5986480.95 10753.24 85.72 359.58 4276.76 4354.06 8299.29 8584.91 8303.47 8214.77 1210.45 12.50 5986512.13 10783.14 84.09 358.91 4279.42 4356.72 8328.53 8614.69 8332.87 8244.55 1210.05 5.89 5986541.89 10812.81 83.61 359.31 4282.60 4359.90 8357.48 8644.19 8361.99 8274.04 1209.60 2.10 5986571.38 10843.89 86.21 358.44 4285.35 4362.65 8387.83 8675.14 8392.53 8304.99 1208.99 8.82 5986602.32 10874.81 87.56 358.72 4287.03 4364.33 8418.07 8706.02 8422.96 8335.85 1208.22 4.46 5986633.17 10906.78 87.10 358.40 4288.52 4365.82 8449.35 8737.95 8454.44 8367.78 1207.42 1.75 5986665.08 10937.75 87.40 359.13 4290.01 4367.31 8479.67 8768.88 8484.96 8398.71 1206.75 2.55 5986695.99 10969.71 89.52 0.00 4290.87 4368.17 8511.07 8800.83 8516.55 8430.65 1206.51 7.17 5986727.93 11000.65 92.28 0.17 4290.38 4367.68 8541.52 8831.77 8547.18 8461.59 1206.56 8.94 5986758.86 11032.27 93.90 0.06 4288.68 4365.98 8572.60 8863.34 8578.44 8493.16 1206.62 5.14 5986790.43 11063.16 93.83 359.77 4286.60 4363.90 8602.93 8894.16 8608.95 8523.98 1206.57 0.96 5986821.24 11094.11 93.92 0.04 4284.50 4361.80 8633.31 8925.04 8639.52 8554.86 1206.52 0.92 5986852.12 11124.86 93.46 359.57 4282.52 4359.82 8663.49 8955.72 8669.89 8585.54 1206.42 2.14 5986882.80 11156.04 92.85 359.39 4280.81 4358.11 8694.08 8986.86 8700.68 8616.67 1206.14 2.04 5986913.92 11187.30 92.01 357.80 4279.48 4356.78 8724.67 9018.09 8731.50 8647.90 1205.37 5.75 5986945.13 11218.88 90.17 352.72 4278.88 4356.18 8755.17 9049.66 8762.29 8679.35 1202.76 17.11 5986976.55 11250.69 89.55 350.66 4278.96 4356.26 8785.33 9081.47 8792.84 8710.82 1198.16 6.76 5987007.97 11281.89 91.95 350.63 4278.55 4355.85 8814.73 9112.66 8822.65 8741.60 1193.09 7.69 5987038.69 11312.85 93.70 349.82 4277.03 4354.33 8843.79 9143.59 8852.13 8772.08 1187.84 6.23 5987069.10 11343.66 93.77 350.27 4275.02 4352.32 8872.65 9174.33 8881.43 8802.36 1182.53 1.47 5987099.31 Last MWD+IFR+MS 11375.08 93.62 350.18 4272.99 4350.29 8902.12 9205.69 8911.35 8833.26 1177.21 0.56 5987130.15 TD (Projected) 11423.00 93.62 350.18 4269.97 4347.27 8947.05 .9253.51 8957.00 8880.38 1169.05 0.00 5987177.18 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 mult~station anaysis and correction applied in post-processing. Assumes a BHA sag correction is appl ied to enhance inclination accuracy. ) 584339.64 N 70 22 18.821 W 14918 52.313 584336.75 N 70 22 19.113 W 149 18 52.388 584333.76 N 70 22 19.423 W 149 18 52.465 584331.03 N 70 22 19.728 W 149 18 52.535 584328.50 N 70 22 20.041 W 149 18 52.598 584326.64 N 70 22 20.348 W 149 18 52.642 584325.49 N 70 22 20.652 W 149 18 52.666 584324.42 N 70 22 20.964 W 149 18 52.686 584322.91 N 70 22 21.267 W 149 18 52.721 584320.87 N 70 22 21.580 W 14918 52.770 584318.60 N 70 22 21.885 W 149 18 5 584316.28 N 70 22 22.195 W 149 18 5 584314.42 N 70 22 22.500 W 149 18 52.9 8 584312.88 N 70 22 22.801 W 149 18 52.963 584311.84 N 70 22 23.108 W 149 18 52.983 584311.12 N 70 22 23.401 W 149 18 52.994 584310.34 N 70 22 23.691 W 149 18 53.007 584309.38 N 70 22 23.995 W 149 18 53.025 584308.28 N 70 22 24.299 W 14918 53.047 584307.12 N 70 22 24.613 W 14918 53.070 584306.11 N 70 22 24.917 W 149 18 53.090 584305.51 N 70 22 25.231 W 149 18 53.097 584305.22 N 70 22 25.535 W 149 18 53.095 584304.93 N 70 22 25.846 W 14918 53.093 584304.54 N 70 22 26.149 W 149 1853.094 584304.15 N 70 22 26.453 W 149 18 53.096 584303.70 N 70 22 26.754 W 149 18 53.099 584303.07 N 70 22 27.061 W 149 18 53.107 584301.96 N 70 22 27.368 W 149 18 53. 584299.00 N 70 22 27.677 W 149 18 5 584294.06 N 70 22 27.986 W 149 18 53.340 584288.65 N 70 22 28.289 W 149 18 53.488 584283.06 N 70 22 28.589 W 149 18 53.641 584277.41 N 70 22 28.887 W 149 18 53.797 584271.74 N 70 22 29.191 W 149 18 53.952 584263.06 N 70 22 29.654 W 149 18 54.191 SurveyEditor Ver SP 1.0 Bld( doc40x_56) L-250 (NM-15 )\L-250\L-250L1\L-250L1 Generated 11/29/2005 3:11 PM Page 6 of 7 Comments Measured Inclination Azimuth Suh-SeaTVD TVD 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 Legal D escription: Northing (Y) [ftUS] Easting t;X) [ftUSJ Surface : 2563 FSL 3721 FEL S34 T12N R11 E UM 5978285.20 583192.78 BHL : 883 FSL 2536 FEL S22 T12N R11 E UM 5987177.18 584263.06 • C SurveyEditor Ver SP 1.0 Bld( doc40x_56) L-250 (NM-15)\L-250\L-250L1\L-250L1 Generated 11/29/2005 3:11 PM Page 7 of 7 = FMC4-118" SM WELLHEAD = FMC GEN 5 ACTUATOR = KB. aEV = 77.30' BF. REV = 48.8' KOP = 700 Max Angle=L1 100 @ 6899' Datum MD = xxxx' Datum TVD - xxxx' SS L-250 • L-250 L1 L-250 L2 20" CONDUCTOR ~ 109' 10-3/4" CSC. 45.5 L-80, ID = 9.95" 3354' Minimum ID = 3.688" @ 6386' and 6601 in the LEM ~4.5"PHOENOC DSCHRGE-PRESS SUB,ID = 3.948" ~-~ 6180' ~~ I 4.5" PHNDC AAULTI-PRESS SENSOR, ID = 3.994" 6215' RA TAG 6337' 7-5/8" x 5.5" BKR ZXP PACKER, ~ = 4.95" 6349' BKR HUGHES HOOK HGR 1D = 5.62" 6386' ~ 7-518" x 5.5" 8KR ZXP PACKER, ID = 5.75" i 6544' RA TAG 6547' BKR HUGHES HOOK HGR ID = 5.62" 6601' ~ 7-5/8" x 5.5" BKR ZXP PACKER, ID = 4.82" ~-{ 6693' PERFORATKIN SUMMARY REF LOG : ANGLE AT TOP PERF: 92° @ 8262' Note: Refer to R-oduction DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 4" SCRN NB L2 8262-12174 O 11/30/05 4" SCRN NB L1 6932-11191 O 11/14/05 4 1!2" SLID OA 7523-8460 O 11/09/05 ~ty info: FROM DRLG -DRAFT 1000' ~ 10 3/4" TAM Port Collar 2669' 4-1/2" HES X Nom, ~ = 3.813" GAS LET MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3148 2505 54 KBG-2 DOME BK 16 12/08/05 3 4824 3510 53 KBG-2 DOME BK 16 12!08/05 2 5961 4126 68 KBG-2 DMY BK 0 12/02/05 1 6071 4161 73 KBG-2 SO BK 22 12108!05 6191' 4.5" Baker CMD-BX Sfidmg Sleeve, 3.812" f0 6240' 7.625" x 4.5" Premier Packer 3.87" ~ 6307' 4.5" HES X nipple, ~ 3.813" 6328' 4.5" HES X nipple, ~ 3.813" 6356' 4.5" Guide Shoe .n. - - - ~ _ = _ _~_ . _~ 6443-6453 4" x 6.4" Sw e~ Packer 3.476" ~-RA Tag @6436' 8158-8168 4" x 6.4" Swell Packer 3.476" ~-RA Tag @ 8150' 8262-12175 4" L-80 9.5/10.9 ~T-M solidlscreen 3.476 ~ - L2 9739-9749 4" x 6.4" Swell Packer 3.476" ~-RA Tag @ 9731' 12260' 4.5" 12.6# L-80 IBT-M shoe (12,258' PBTD) - L2 6574' )y 4-1/2" Seal Assembly from LEM # 2 ~ ---- ---- • - ~ rr \ 6563-6583 Baker Seal Bore Extension w ith 4.75 ~ - L1 6666-6677 4" x 6.4" Sw ell Packer 3.476" ~-RA Tag @ 6659' 6635-11191 4" 10.9# L-80 ~T-M solid/screen 3.476 ID - L1 10262-1036 4" x 6.4" Swell Packer 3.476" ~-RA Tag @ 10254' 11273' 4.5" 12.6# L-80 ~T-M shoe (11271' PBTD) - L1 \ 6728' 4-1/2" Seal Assemby from LEM #1. 6717-6736 Baker Seal Bore Extensan w ith 4.75 ~ 6762-6763 Magnumdisk Cerarr~ shear sub (Not sheared) 7418' 7 5/8 29.7# L-80 BTGM casing w ith 6.875 ~ -- - - - ~ / '_' "- 7523-8460 4 1/2 BTC 12.6# sbtted Inver w ith 3.958 ID 8521-8531 Sw ep packer elements w ent in the hole at 6.4 OD 8587' 4 1/2 F/C (PBTD once shear disk is gone @ 6762) 8632' ~~ 4 1/2 ~T L-80 12.6# solid liner from 8460-86 DATE REV BY COMMENTS DATE REV BY COMMENTS 12J02I05 AMlJF ORIG~lAL COMPLETION 12/08!05 KDGPJC GLV GO ORION UNff WELL: L-250, L-250 L1, L-250 L2 Pt32M(f No: 205-152 (153) (154) API No: 50-029-23281-00 (60) (61) SEC 34, T12N, R11 E, 2563' NSL 8 3721' WEL BP 6cploration (Alaska) SCHLUMBERGER Survey report Client .................... BP Exploration (Alaska) Inc. Field ..................... Orion Well ...................... L-250L1 API number ................ 50-029-23281-60 Engineer .................. St. Amour Rig :...................... Nabors 9ES 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.......: 48.80 ft KB above permanent.......: N/A (Topdrive) DF above permanent.......: 77.30 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: 10.20 degrees 15-Nov-2005 15:40:49 Page 1 of 10 Spud date ................. 10-October-2005 Last survey date.........: 15-Nov-05 Total accepted surveys...: 243 MD of first survey.,....... 0.00 ft MD of last survey..,......: 11375.08 ft C7 ----- Geomagnetic data ---------------------- Magnetic model...........: BGGM version 2005 Magnetic date ............. 23-Oct-2005 Magnetic field strength..: 1151.54 HCNT Magnetic dec (+E/W-).....: 24.44 degrees Magnetic dip .............. 80.85 degrees ----- MWD Reference Reference Reference Tolerance Tolerance Tolerance survey Reference G ............... H ............... Dip ............. of G............ of H............ of Dip.......... Criteria --------- 1002.68 meal 1151.54 HCNT 80.85 degrees (+/-) 2.50 meal (+/-) 6.00 HCNT (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-)....,: 24.44 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-)....: 24.44 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 SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 2 of 10 --- --- Seq -------- -------- Measured ------ ------ Incl ------- ------- Azimuth ------ ------ Course -------- -------- TVD -------- -------- Vertical -------- -------- Displ -------- -------- Displ -------- -------- Total ------ ------ At # depth angle angle length depth section +N/S- +E/W- displ Azim - --- (ft) -------- (deg) ------ (deg) ------- (ft) ------ (ft) -------- (ft) -------- (ft) -------- (ft) -------- - (ft) -------- ---- - (deg) ------ ------ --- 1 -------- 0.00 ------ 0.00 ------- 0.00 ------ 0.00 -------- 0.00 -------- 0.00 -------- 0.00 ------- 0.00 -- - 0.00 0.00 2 100.00 0.18 72.13 100.00 100.00 0.07 0.05 0.15 0.16 72.13 3 200.00 0.28 91.26 100.00 200.00 0.19 0.09 0.59 0.55 80.49 4 300.00 0.33 67.69 100.00 300.00 0.38 0.19 1.05 1.07 79.52 5 400.00 0.48 65.03 100.00 399.99 0.77 0.48 1.70 1.77 74.20 6 500.00 0.38 60.50 100.00 999.99 1.23 0.82 2.37 2.51 70.88 7 600.00 4.63 0.90 100.00 599.88 5.42 5.02 2.72 5.71 28.45 8 700.00 7.22 2.14 100.00 699.34 15.63 15.34 3.02 15.63 11.13 9 800.00 9.47 358.78 100.00 798.27 29.92 29.85 3.08 30.00 5.89 10 900.00 10.55 0.97 100.00 896.75 47.02 47.22 3.06 47.32 3.71 11 1000.00. 12.85 1.98 100.00 994.66 67.06 67.49 3.60 67.59 3.05 12 1100.00 18.01 1.78 100.00 1091.03 93.38 94.08 4.46 94.18 2.72 13 1142.48 17.42 2.28 42.48 1131.49 106.17 106.99 4.92 107.11 2.63 14 1238.55 23.54 359.82 96.07 1221.45 139.32 140.58 5.43 140.69 2.21 15 1333.71 28.06 359.38 95.16 1307.10 180.02 181.98 5.13 182.06 1.61 16~ 1426.70 33.77 1.48 92.99 1386.85 227.09 229.73 5.56 229.80 1.39 17 1521.00 39.49 3.27 94.30 1462.50 282.80 285.92 7.95 286.03 1.59 18 1615.30 41.59 2.81 94.30 1534.16 343.62 347.12 11.20 347.30 1.85 19 1709.51 43.47 4.55 94.21 1603.58 406.88 910.66 15.30 410.95 2.13 20 1803.55 48.15 5.70 94.04 1669.11 474.03 477.80 21.35 478.28 2.56 21 1897.74 50.17 6.38 94.19 1730.71 545.09 548.66 28.85 549.42 3.01 22 1992.59 50.39- 5.96 94.85 1791.32 617.87 621.19 36.69 622.27 3.38 23 2087.57 50.71 5.82 94.98 1851.67 691.00 694.14 44.22 695.55 3.64 24 2182.43 50.72 6.03 94.86 1911.73 764.22 767.17 51.80 768.92 3.86 25 2278.30 50.98 6.67 95.87 1972.26 838.40 841.06 60.02 843.20 4.08 26 2371.54 50.42 6.76 93.24 2031.32 910.42 912.72 68.46 915.29 4.29 27 2466.47 50.95 6.67 94.93 2091.46 983.73 985.66 77.05 988.67 4.47 28 2561.66 51.25 6.75 95.19 2151.24 1057.67 1059.24 85.70 1062.70 4.63 29 2655.99 50.76 6.72 94.33 2210.60 1130.85 1132.04 94.30 1135.96 4.76 30 2750.38 51.58 6.48 94.39 2269.78 1204.24 1205.09 102.75 1209.46 4.87 ----- ----- ------ ----- ----- ------ DLS Srvy Tool (deg/ tool Corr 100f) type (deg) ----- ----- ------ ----- ----- ------ 0.00 TIP None 0.18 BP_GYD_CT_DMS 0.12 BP_GYD_CT_DMS 0.13 BP_GYD_CT_DMS 0.15 BP GYD CT DMS 0.11 BP_GYD_CT_DMS 4.45 BP_GYD_CT_DMS 2.59 BP_GYD_CT_DMS 2.30 BP_GYD_CT_DMS 1.14 BP GYD CT DMS 2.31 BP_GYD_CT_DMS 5.16 BP_GYD_CT_DMS 1.43 BP_MWD+IFR+MS 6.43 BP_MWD+IFR+MS 4.75 BP MWD+IFR+MS 6.25 BP_MWD+IFR+MS 6.17 BP_MWD+IFR+MS 2.25 BP_MWD+IFR+MS 2.35 BP_MWD+IFR+MS 5.05 BP MWD+IFR+MS 2.21 BP_MWD+IFR+MS 0.41 BP_MWD+IFR+MS 0.36 BP_MWD+IFR+MS 0.17 BP_MWD+IFR+MS 0.58 BP MWD+IFR+MS 0.61 BP_MWD+IFR+MS 0.56 BP_MWD+IFR+MS 0.32 BP_MWD+IFR+MS 0.52 BP_MWD+IFR+MS 0.89 BP_MWD+IFR+MS • SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 3 of 10 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 2842.88 54.02 5.92 92.50 2325.70 1277.73 1278.33 110.70 1283.11 4.95 2.68 BP _MWD+IFR+MS 32 2938.01 54.48 5.76 95.13 2381.28 1354.71 1355.13 118.56 1360.31 5.00 0.50 BP _MWD+IFR+MS 33 3030.50 54.05 5.73 92.49 2435.30 1429.56 1429.83 126.07 1435.38 5.04 0.47 BP _MWD+IFR+MS 34 3124.67 53.78 5.75 94.17 2490.76 1505.43 1505.55 133.68 1511.48 5.07 0.29 BP _MWD+IFR+MS 35 3217.96 53.69 5.83 93.29 2545.94 1580.43 1580.39 141.27 1586.69 5.11 0.12 BP MWD+IFR+MS 36 3304.80 54.42 5.76 86.84 2596.92 1650.52 1650.33 148.37 1656.99 5.14 0.84 BP MWD+IFR+MS 37 3377.66 59.50 8.43 72.86 2639.28 1709.72 1709.16 155.69 1716.23 5.20 2.98 BP _ MWD+IFR+MS • 38 3377.66 54.50 7.88 72.86 2639.27 1709.70 1709.19 155.41 1716.25 5.20 2.37 BP - _MWD+IFR+MS 39 3460.47 55.12 12.65 82.81 2687.01 1777.36 1775.66 168.08 1783.60 5.41 4.23 BP MWD+IFR+MS 40 3960.47 55.12 11.54 82.81 2687.01 1777.36 1775.88 166.83 1783.70 5.37 3.69 BP _ MWD+IFR+MS 41 3553.53 54.96 17.06 93.06 2740.35 1853.35 1849.35 187.62 1858.85 5.79 3.89 BP _MWD+IFR+MS 42 3553.53 54.96 16.27 93.06 2740.35 1853.43 1849.88 185.15 1859.12 5.72 4.17 BP _MWD+IFR+MS 43 3646.38 54.07 21.75 92.85 2799.27 1927.95 1920.63 212.71 1932.38 6.32 4.22 BP _MWD+IFR+MS 94 3646.38 54.07 21.14 92.85 2794.27 1928.17 1921.46 209.36 1932.83 6.22 4.38 BP _MWD+IFR+MS 45 3739.41 53.06 24.30 93.03 2849.53 2001.22 1990.49 238.25 2004.69 6.83 2.94 BP MWD+IFR+MS 96 3739.41 53.06 24.67 93.03 2849.53 2000.86 1989.41 242.19 2004.10 6.94 2.75 BP MWD+IFR+MS 47 3833.63 53.64 25.97 94.22 2905.77 2073.83 2057.74 274.52 2075.97 7.60 1.27 BP _ MWD+IFR+MS 48 3833.63 53.64 25.65 94,22 2905.77 2074.31 2059.01 270.17 2076.66 7,48 1.30 BP _ _MWD+IFR+MS 49 3926.05 51.52 27.14 92.42 2961.93 2144.79 2124.75 302.78 2146.22 8.11 2.63 BP _MWD+IFR+MS 50 3926.05 51.52 26.87 92.42 2961.93 2144.31 2123.47 307.17 2145.57 8.23 2.42 BP MWD+IFR+MS 51 4019.45 51.26 28.14 93.40 3020.22 2213.99 2188.21 340.87 2214.60 8.85 1.10 BP _MWD+IFR+MS 52 4019.45 51.26 27.27 93.40 3020.22 2214.58 2189.66 336.15 2215.32 8.73 0.30 BP _MWD+IFR+MS • 53 4112.37 51.19 27.35 92.92 3078.41 2283.06 2252.32 374.60 2283.26 9.44 0.67 BP MWD+IFR+MS 54 9112..37 51.19 26.85 92.92 3078.41 2283.91 2259.17 369.11 2284.19 9.30 0.36 BP _ _MWD+IFR+MS 55 4204.46 51.42 27.12 92.09 3135.98 2351.78 2316.22 407.49 2351.80 9.98 0.32 BP MWD+IFR+MS 56 4204.46 51.42 26.73 92.09 3135.98 2352.79 2318.33 401.50 2352.84 9.83 0.27 BP _MWD+IFR+MS 57 4297.65 51.71 30.07 93.19 3193.92 2421.03 2380.30 442.92 2421.07 10.53 2.50 BP _MWD+IFR+MS 58 4297.65 51.71 29.80 93.19 3193.92 2422.18 2382.61 436.06 2422.19 10.37 2.60 BP _MWD+IFR+MS 59 4392.61 51.45 31.47 94.96 3252.93 2490.68 2444.23 980.48 2491.00 11.12 1.19 BP _MWD+IFR+MS 60 4392.61 51.45 30.78 94.96 3252.93 2492.05 2446.85 473.59 2492.26 10.95 0.85 BP MWD+IFR+MS SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 4 of 10 --- --- 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) ------ ------ (degj ------- ------- (ft) ------ ------ (ft) -------- - - - - (ft) -------- - - (ft) ------- - (ft) --------- - (ft) ------- - - - (deg) -------- - 100f) ----- type (deg) ----- ------ 61 4485.21 53.60 29.48 92.60 - - -- 3309.27 -- - --- 2561.13 -- ---- 2510.41 -------- 510.46 - -- - 2561.79 ------- 11.49 ----- 2.58 -- BP_ --- ------ MWD+IFR+MS 62 4485.21 53.60 29.41 92.60 3309.27 2559.63 2507.59 517.69 2560.47 11.66 2.92 BP_ MWD+IFR+MS 63 4578.62 54.11 28.98 93.41 3364.37 2630.95 2573.43 554.48 2632.49 12.16 0.66 BP_ MWD+IFR+MS 64 4578.62 54.11 29.11 93.41 3364.36 2632.41 2576.20 547.37 2633.71 12.00 0.63 BP_ MWD+IFR+MS 65 4671.65 53.80 28.94 93.03 3419.11 2702.18 2639.25 590.91 2704.59 12.62 0.34 BP MWD+IFR+MS 66 4671.65 53.80 29.11 93.03 3419.10 2703.57 2691.92 583.96 2705.69 12.46 0.33 BP MWD+IFR+MS 67 4764.31 53.21 29.31 92.66 3474.21 2774.00 2706.93 620.32 2777.10 12.91 0.66 _ BP MWD+IFR+MS • 68 4764.31 53.21 31.86 92.66 3474.22 2772.07 2703.49 628.59 2775.60 13.09 2.61 _ BP MWD+IFR+MS 69 4857.56 52.79 29.02 93.25 3530.33 2844.43 2771.96 656.61 2848.67 13.33 0.51 _ BP MWD+IFR+MS 70 .4857.56 52.79 28.96 93.25 3530.35 2841.95 2767.70 666.28 2846.77 13.54 2.52 _ BP MWD+IFR+MS 71 4952.03 52.51 29.57 94.47 3587.65 .2915.40 2837.46 693.35 2920.94 13.73 0.55 BP MWD+IFR+MS 72 5045.33 51.88 29.69 93.30 3644.84 2984.91 2901.54 729.80 2991.91 14.12 0.68 _ BP MWD+IFR+MS 73 5138.73 54.44 29.12 93.40 3700.83 3055.50 2966.65 766.49 3064.07 14.49 2.78 _ BP MWD+IFR+MS 74 5230.90 54.90 28.89 92.17 3754.13 3126.68 3032.42 802.95 3136.92 14.83 0.54 _ BP MWD+IFR+MS 75 5324.74 54.48 28.53 93.84 3808.37 3199.30 3099.58 839.74 3211.32 15.16 0.55 _ BP MWD+IFR+MS 76 5417.84 53.82 28.79 93.10 3862.90 3270.88 3165.80 875.93 3284.74 15.47 0.74 BP_ MWD+IFR+MS 77 5511.05 55.75 28.85 93.21 3916.64 3343.04 3232.51 912.64 3358.87 15.77 2.07 BP MWD+IFR+MS 78 5603.61 57.96 28.05 92.56 3967.25 3416.64 3300.65 949.55 3434.52 16.05 2.49 _ BP_ MWD+IFR+MS 79 5697.17 60.88 28.88 93.56 4014.84 3493.11 3371.45 987.94 3513.22 16.33 3.21 BP MWD+IFR+MS 80 5791.86 63.76 30.59 94.69 4058.83 3572.12 3444.24 1029.59 3594.82 16.64 3.44 BP MWD+IFR+MS 81 5884.27 66.66 32.01 92.41 4097.57 3650.38 3515.91 1073.13 3676.03 16.97 3.43 BP_ MWD+IFR+MS 82 5977.84 70.06 33.79 93.57 4132.08 3730.59 3588.91 1120.38 3759.72 17.34 4.04 BP_ MWD+IFR+MS • 83 6071.32 73.16 35.09 93.48 4161.56 3811.46 3662.05 1170.54 3844.58 17.73 3.57 BP MWD+IFR+MS 84 6164.43 75.10 34.05 93.11 4187.02 3893.04 3735.80 1221.36 3930.38 18.10 2.34 _ BP MWD+IFR+MS 85 6257.98 76.40 29.96 93.55 4210.06 3977.20 3812.67 1269.39 4018.44 18.41 4.46 _ BP MWD+IFR+MS 86 6351.55 74.80 26.84 93.57 4233.34 4063.28 3892.38 1312.50 4107.71 18.63 3.65 BP MWD+IFR+MS 87 6443.94 73.29 21.48 92.39 4258.75 4149.45 3973.38 1348.85 4196.09 18.75 5.81 _ BP MWD+IFR+MS 88 6538.08 74.98 15.33 94.14 4284.51 4239.03 9059.26 1377.41 4286.59 18.74 6.53 _ TIP None 89 6606.00 77.08 11.97 67.92 4300.91 4304.80 4123.30 1392.95 4352.23 18.67 5.71 BP BLIND 90 6618.00 78.89 11.31 12.00 4303.40 4316.54 4134.80 1395.32 4363.88 18.65 16.01 _ BP BLIND SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 5 of 10 --- --- 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) ---- ------ - --- 91 --- --- 6650.10 ------ 80.99 ------- 12.00 ------ 32.10 ------- 4309.01 - -------- 4348.13 -------- 4165.75 -------- 1401.70 -------- 4395.25 ------- 18.60 --- - 6.88 - BP -- - ------ _INC+BLIND 92 6681.08 85.21 12.66 30.98 4312.73 4378.86 4195.79 1408.27 4425.82 18.55 13.78 BP _INC+BLIND 93 6711.56 89.73 13.30 30.48 4314.08 4409.26 4225.45 1415.11 4456.12 18.52 14.98 BP _INC+BLIND 94 6742.10 94.87 13.95 30.54 4312.85 4439.71 4255.10 1422.29 4486.51 18.48 16.96 BP INC+BLIND 95 6773.27 98.21 14.61 31.17 4309.30 4470.60 4285.10 1429.93 4517.39 18.45 10.92 BP MWD+IFR+MS 96 6804.91 98.44 14.46 31.64 4304.72 4501.82 4315.41 1437.79 4548.62 18.43 0.87 BP MWD+IFR+MS 97 6836.15 98.15 13.69 31.24 4300.21 4532.66 4345.39 1445.30 4579.45 18.40 2.61 BP _ _MWD+IFR+MS • 98 6867.67 98.33 12.75 31.52 4295.70 4563.81 4375.76 1452.44 4610.52 18.36 3.01 BP _MWD+IFR+MS 99 6898.94 99.93 9.19 31.27 .4290.73 4594.67 4406.06 1458.31 4641.13 18.31 12.35 BP MWD+IFR+MS 100 6930.29 99.73 5.69 31.35 4285.38 4625.52 4436.69 1462.31 4671.46 18.24 11.02 BP MWD+IFR+MS 101 6961.06 96.66 4.19 30.77 4280.99 4655.85 4467.03 1464.93 470.1.10 18.16 11.08 BP MWD+IFR+MS 102 6992.65 92.35 3.18 31.59 4278.51 4687.13 4498.45 1466.96 4731.59 18.06 14.01 BP MWD+IFR+MS 103 7021.97 87.94 2.30 29.32 4278.44 4716.19 4527.73 1468.36 4759.87 17.97 15.34 BP MWD+IFR+MS 104 7053.15 87.91 2.49 31.18 4279.57 4747.06 4558.86 1469.66 4789.89 17.87 0.62 BP _ _MWD+IFR+MS 105 7084.90 85.86 1.10 31.75 4281.29 4778.42 4590.54 1470.65 4820.36 17.76 7.80 BP MWD+IFR+MS 106 7116.06 84.46 357.75 31.16 4283.92 4808.92 4621.58 1470.34 4849.84 17.65 11.62 BP _MWD+IFR+MS 107 7148.24 88.16 354.37 32.18 4285.99 4840.05 4653.61 1468.13 4879.70 17.51 15.56 BP _MWD+IFR+MS 108 7179.41 89.90 351.99 31.17 4286.52 4869.85 4684.55 1464.43 4908.12 17.36 9.46 BP _MWD+IFR+MS 109 7210.54 88.66 348.99 31.13 4286.91 4899.14 4715.25 1459.29 9935.90 17.20 10.43 BP _MWD+IFR+MS 110 7241.57 89.89 348.04 31.03 4287.31 4927.98 4745.65 1453.11 4963.14 17.02 5.01 BP MWD+IFR+MS 111 7273.47 89.02 344.67 31.90 4287.61 4957.15 4776.65 1445.59 4990.60 16.84 10.91 BP _MWD+IFR+MS 112 7303.40 87.62 341.60 29.93 4288.49 4983.78 4805.27 1436.91 5015.51 16.65 11.27 BP _MWD+IFR+MS • 113 7334.29 85.83 338.80 30.89 4290.25 5010.49 4834.29 1426.47 5040.35 16.44 10.75 BP _MWD+IFR+MS 114 7365.65 85.39 336.71 31.36 4292.65 5036.87 4863.22 1414.63 5064.79 16.22 6.79 BP _MWD+IFR+MS 115 7397.28 88.49 337.23 31.63 4294.34 5063.29 4892.29 1402.28 5089.29 15.99 9.94 BP MWD+IFR+MS 116 7428.81 89.22 337.44 31.53 4294.97 5089.77 4921.38 1390.13 5113.94 15.77 2.41 BP _MWD+IFR+MS 117 7460.15 89.72 337.95 31.34 4295.26 5116.20 4950.37 1375.24 5138.65 15.56 2.28 BP _MWD+IFR+MS 118 7491.40 89.10 338.27 31.25 4295.58 5142.67 4979.37 1366.59 5163.49 15.35 2.23 BP _MWD+IFR+MS 119 7522.47 88.08 339.70 31.07 4296.35 5169.24 5008.36 1355.45 5188.54 15.14 5.67 BP _MWD+IFR+MS 120 7552.72 89.22 341.65 30.25 4297.06 5195.55 5036.90 1345.44 5213.49 14.96 7.45 BP MWD+IFR+MS SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 6 of 10 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) 121 7584.51 89.05 343.17 31.79 4297.54 5223.66 5067.19 1335.83 5240.31 14.77 4.84 BP MWD+IFR+MS 122 7614.95 89.36 342.74 30.44 4297.97 5250.73 5096.29 1326.91 5266.20 14.59 1.74 BP _ MWD+IFR+MS 123 7645.87 89.53 343.85 30.92 4298.27 5278.30 5125.91 1318.02 5292.65 14.42 3.63 BP _ MWD+IFR+MS 124 7677.47 87.36 344.52 31.60 4299.12 5306.68 5156.30 1309.41 5319.96 14.25 7.19 BP _ MWD+IFR+MS 125 7708.72 87.36 345.23 31.25 4300.56 5334.90 5186.43 1301.27 5347.18 14.08 2.27 BP _ MWD+IFR+MS 126 7740.08 86.92 345.30 31.36 4302.13 5363.30 5216.72 1293.30 5374.65 13.92 1.42 BP MWD+IFR+MS 127 7771.69 86.46 345.01 31.56 4303.95 5391.84 5247.18 1285.23 5402.29 13.76 1.72 BP _ MWD+IFR+MS 128 7802.92 88.14 345.21 31.28 4305.42 5420.14 5277.37 1277.20 5429.73 13.60 5.41 BP _ MWD+IFR+MS 129 7833.49 91.67 346.70 30.57 4305.48 5448.01 5307.02 1269.78 5456.82 13.46 12.53 BP _ MWD+IFR+MS 130 7864.72 91.61 347.02 31.23 4304.58 5476.67 5337.42 1262.69 5484.75 13.31 1.04 BP MWD+IFR+MS 131 7895.06 91.44 348.49 .30.34 4303.77 5504.70 5367.06 1256.25 5512.13 13.17 4.88 BP MWD+IFR+MS 132 7926.59 92.01 353.37 31.53 4302.82 5534.44 5398.17 1251.29 5541.30 13.05 15.58 BP _ MWD+IFR+MS 133 7957.07 90.80 356.87 30.48 4302.08 5563.86 5428.53 1248.69 5570.29 12.95 12.15 BP _ MWD+IFR+MS 134 7988.36 92.27 359.10 31.29 4301.24 5594.43 5459.79 1247.59 5600.51 12.87 8.53 BP _ MWD+IFR+MS 135 8017.36 92.37 359.35 29.00 4300.06 5622.87 5488.76 1247.20 5628.68 12.80 0.93 BP _ MWD+IFR+MS 136 8048.44 92.15 358.82 31.08 4298.84 5653.35 5519.81 1246.71 5658.85 12.73 1.85 BP MWD+IFR+MS 137 8080.23 91.89 359.05 31.79 4297.72 5684.51 5551.58 1246.12 5689.71 12.65 1.09 BP _ MWD+IFR+MS 138 8111.93 91.22 359.00 31.70 4296.86 5715.59 5583.26 1245.58 5720.51 12.58 2.12 BP _ MWD+IFR+MS 139 8143.13 89.93 356.59 31.20 4296.54 5746.06 5614.43 1244.38 5750.68 12.50 8.76 BP _ MWD+IFR+MS 140 8175.23 88.69 356.98 32.10 4296.93 5777.28 5646.48 1242.58 5781.58 12.41 4.05 BP _ MWD+IFR+MS 141 8206.40 86.45 355.73 31.17 4298.25 5807.52 5677.56 1240.60 5811.52 12.33 8.23 BP MWD+IFR+MS 142 8236.53 86.69 355.96 30.13 4300.06 5836.65 5707.55 1238.42 5840.36 12.24 1.10 BP _ MWD+IFR+MS • 143 8268.20 87.75 357.67 31.67 4301.59 5867.42 5739.13 1236.66 5870.86 12.16 6.35 BP _ MWD+IFR+MS 144 8299.21 87.54 358.27 31.01 4302.87 5897.70 5770.10 1235.56 5900.90 12.09 2.05 BP _ MWD+IFR+MS 145 8330.57 87.63 359.17 31.36 4304.19 5928.41 5801.42 1234.86 5931.39 12.02 2.85 BP _ MWD+IFR+MS 146 8361.83 87.41 358.94 31.26 4305.54 5959.05 5832.65 1234.34 5961.83 11.95 0.99 BP MWD+IFR+MS 147 8392.35 87.40 359.70 30.52 4306.92 5988.99 5863.13 1233.98 5991.58 11.89 2.49 BP _ MWD+IFR+MS 148 8424.08 88.26 359.49 31.73 4308.12 6020.16 5894.84 1233.76 6022.57 11.82 2.79 BP _ MWD+IFR+MS 149 8454.65 85.31 0.20 30.57 4309.84 6050.18 5925.36 1233.67 6052.42 11.76 9.92 BP _ MWD+IFR+MS 150 8485.91 86.50 2.10 31.26 4312.07 6080.97 5956.53 1234.30 6083.07 11.71 7.16 BP _ MWD+IFR+MS SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 7 of 10 --- --- 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 (deq/ tool Corr - --- --- (ft) -------- -------- (deg) ------ ------ (deg) ------- ------- (ft) ------ -- --- (ft) ------- - - (ft) - -------- - (ft) -------- (ft) -------- - (ft) -------- (deg) ------- - 100f) ----- type (deg) ----- ------ 151 8515.93 88.16 6.09 - 30.02 --- -- 4313.47 - -- ----- 6110.78 -------- 5986.43 ----- -- 1236.44 -------- 6112.79 ---- -- 11.67 ----- 14.38 -- BP_ --- ------ MWD+IFR+MS 152 8546.97 89.02 10.70 31.04 4314.23 6141.78 6017.12 1240.97 6143.76 11.65 15.10 BP_ MWD+IFR+MS 153 8578.45 85.51 11.65 31.48 4315.74 6173.22 6047.97 1247.06 6175.20 11.65 11.55 BP_ MWD+IFR+MS 154 8610.32 84.81 13.24 31.87 4318.42 6204.95 6078.98 1253.91 6206.95 11.65 5.43 BP_ MWD+IFR+MS 155 8640.97 89.59 13.11 30.65 4321.26 6235.43 6108.69 1260.86 6237.46 11.66 0.83 BP MWD+IFR+MS 156 8671.37 85.06 11.07 30.40 4324.00 6265.69 6138.29 1267.20 6267.73 11.66 6.86 BP MWD+IFR+MS 157 8702.56 86.71 8.34 31.19 4326.24 6296.79 6168.95 1272.45 6298.82 11.65 10.21 BP_ MWD+IFR+MS • 158 8733.75 88.01 6.79 31.19 4327.67 6327.91 6199.84 1276.55 6329.90 11.63 6.48 BP_ MWD+IFR+MS 159 8764.44 88.41 7.13 30.69 4328.63 6358.54 6230.29 1280.27 6360.47 11.61 1.71 BP_ MWD+IFR+MS 160 8794.51 88.13 5.93 30.07 4329.54 6388.53 6260.15 1283.68 6390.41 11.59 4.10 BP MWD+IFR+MS 161 8825.52 88.87 2.80 31.01 4330.35 6419.37 6291.05 1286.04 6421.16 11.55 10.37 BP_ MWD+IFR+MS 162 8857.33 88.83 2.12 31.81 .4330.99 6450.88 6322.83 1287.41 6452.56 11.51 2.14 BP MWD+IFR+MS 163 8889.29 88.67 3.13 31.96 4331.69 6482.55 6354.75 1288.87 6484.13 11.47 3.20 _ BP_ MWD+IFR+MS 164 8920.46 88.10 2.66 31.17 4332.57 6513.46 6385.86 1290.44 6514.94 11.42 2.37 BP_ MWD+IFR+MS 165 8951.40 87.48 1.27 30.94 4333.76 6544.06 6416.76 1291.50 6545.44 11.38 4.92 BP MWD+IFR+MS 166 8981.16 85.99 358.47 29.76 4335.45 6573.28 6446.47 1291.44 6574.56 11.33 10.64 BP_ MWD+IFR+MS 167 9012.54 85.77 357.18 31.38 4337.71 6603.85 6477.75 1290.25 6604.99 11.26 4.16 BP_ MWD+IFR+MS 168 9044.13 85.37 357.10 31.59 4340.15 6634.53 6509.20 1288.68 6635.54 11.20 1.29 BP_ MWD+IFR+MS 169 9074.57 85.25 357.63 30.94 4342.64 6664.11 6539.51 1287.28 6665.00 11.14 1.78 BP_ MWD+IFR+MS 170 9105.97 86.68 357.41 31.40 4344.85 6694.67 6570.80 1285.93 6695.45 11.07 4.61 BP MWD+IFR+MS 171 9136.69 88.51 358.48 30.72 4346.14 6724.66 6601.47 1284.83 6725.34 11.01 6.90 BP_ MWD+IFR+MS 172 9167.42 89.89 359.13 30.73 4346.56 6754.78 6632.19 1284.19 6755.37 10.96 4.96 BP_ MWD+IFR+MS • 173 9199.09 89.50 359.34 31.67 4346.73 6785.87 6663.86 1283.76 6786.39 10.90 1.40 BP_ MWD+IFR+MS 174 9230.08 89.14 359.60 30.99 4347.10 6816.32 6694.84 1283.48 6816.76 10.85 1.43 BP MWD+IFR+MS 175 9261.09 89.33 359.68 31.01 4347.52 6846.80 6725.85 1283.28 6847.18 10.80 0.66 BP MWD+IFR+MS 176 9291.86 88.79 359.28 30.77 4348.02 6877.03 67.56.62 1283.00 6877.35 10.75 2.18 BP_ MWD+IFR+MS 177 9322.39 87.93 358.89 30.53 4348.89 6906.98 6787.13 1282.52 6907.24 10.70 3.09 BP_ MWD+IFR+MS 178 9352.78 88.84 358.32 30.39 4349.75 6936.73 6817.50 1281.78 6936.95 10.65 3.53 BP MWD+IFR+MS 179 9383.75 88.13 357.71 30.97 4350.57 6966.99 6848.44 1280.70 6967.16 10.59 3.02 _ BP_ MWD+IFR+MS 180 9414.83 89.13 356.76 31.08 4351.31 6997.27 6879.47 1279.21 6997.39 10.53 4.44 BP MWD+IFR+MS SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 8 of 10 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) 181 9445.91 90.05 357.85 31.08 4351.53 7027.57 6910.52 1277.74 7027.65 10.48 4.59 BP MWD+IFR+MS 182 9477.46 91.49 356.50 31.55 4351.11 7058.30 6942.02 1276.19 7058.35 10.42 6.26 BP _ MWD+IFR+MS 183 9508.61 91.88 356.21 31.15 4350.19 7088.53 6973.10 1274.21 7088.56 10.36 1.56 BP _ MWD+IFR+MS 184 9539.80 91.27 356.13 31.19 9349.34 7118.78 7004.20 1272.13 7118.79 10.29 1.97 BP _ MWD+IFR+MS 185 9571.56 91.16 355.94 31.76. 4348.66 7149.57 7035.88 1269.93 7149.57 10.23 0.69 BP _ MWD+IFR+MS 186 9602.65 91.00 355.91 31.09 4348.08 7179.69 7066.89 1267.72 7179.69 10.17 0.52 BP MWD+IFR+MS 187 9633.87 90.41 357.90 31.22 4347.69 7210.07 7098.06 1266.04 7210.08 10.11 6.65 BP _ MWD+IFR+MS • 188 9665.21 90.32 359.25 31.34 4347.99 7240.77 7129.39 1265.26 7240.79 10.06 4.32 BP _ MWD+IFR+MS 189 9695.60 91.19 359.27 30.39 4347.09 7270.60 7159.77 1264.87 7270.64 10.02 2.86 BP _ MWD+IFR+MS 190 9726.57 91.24 359.19 30.97 4346.44 7301.00 7190.73 1264.45 7301.06 9.97 0.30 BP _ MWD+IFR+MS 191 9757.77 90.90 359.44 31.20 4345.85 7331.63 7221.92 1264.08 7331.72 9.93 1.35 BP MWD+IFR+MS 192 9789.03 90.78 359.44 31.26 9345.40 7362.34 7253.18 1263.77 7362.45 9.88 0.38 BP _ MWD+IFR+MS 193 9820.39 90.42 359.76 31.36 4345.07 7393.16 7284.54 1263.55 7393.31 9.84 1.54 BP _ MWD+IFR+MS 194 9851.39 90.33 0.38 31.00 4344.86 7423.68 7315.53 1263.59 7423.86 9.80 2.02 BP _ MWD+IFR+MS 195 9882.03 91.28 359.76 30.64 4344.43 7453.84 7346.17 1263.63 7454.06 9.76 3.70 BP _ MWD+IFR+MS 196 9912.50 87.92 355.81 30.47 4344.65 7483.59 7376.61 1262.45 7483.86 9.71 17.02 BP MWD+IFR+MS 197 9943.12 87.20 355.14 30.62 4345.95 7513.17 7407.10 1260.04 7513.51 9.65 3.21 BP _ MWD+IFR+MS 198 9974.43 88.87 354.40 31.31 4347.02 7543.33 7438.26 1257.18 7543.76 9.59 5.83 BP _ MWD+IFR+MS 199 10005.71 93.11 355.10 31.28 4346.48 7573.47 7469.40 1254.32 7573.99 9.53 13.74 BP _ MWD+IFR+MS 200 10037.12 93.50 356.97 31.41 4344.67 7603.88 7500.68 1252.16 7604.48 9.48 6.07 BP _ MWD+IFR+MS 201 10067.90 92.98 357.17 30.78 4342.93 7633.80 7531.37 1250.58 7634.50 9.43 1.81 BP MWD+IFR+MS 202 10099.44 92.01 356.79 31.54 4341.56 7664.48 7562.84 1248.92 7665.27 9.38 3.30 BP _ MWD+IFR+MS • 203 10130.37 91.74 356.03 30.93 4340.55 7694.50 7593.69 1246.99 7695.40 9.33 2.61 BP _ MWD+IFR+MS 204 10161.19 91.14 355.75 30.82 4339.77 7724.35 7624.42 1244.78 7725.37 9.27 2.15 BP _ MWD+IFR+MS 205 10192.91 90.99 355.52 31.72 4339.18 7755.05 7656.04 1242.37 7756.19 9.22 0.87 BP _ MWD+IFR+MS 206 10224.17 89.69 356.83 31.26 4339.00 7785.38 7687.23 1240.28 7786.65 9.17 5.90 BP MWD+IFR+MS 207 10254.76 88.94 356.14 30.59 4339.36 7815.09 7717.76 1238.41 7816.49 9.12 3.33 BP _ MWD+IFR+MS 208 10285.40 88.43 355.07 30.64 4340.07 7844.73 7748.30 1236.06 7846.28 9.06 3.87 BP ~MWD+IFR+MS 209 10316.13 88.30 355.04 30.73 4340.94 7874.38 7778.91 1233.41 7876.08 9.01 0.43 BP ~MWD+IFR+MS 210 10345.93 87.75 355.07 29.80 4341.97 7903.13 7808.58 1230.89 7904.99 8.96 1.85 BP MWD+IFR+MS SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 9 of 10 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +EJW- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 211 10377.63 84.49 355.35 31.70 4344.11 7933.68 7840.09 1228.20 7935.71 8.90 10.32 BP MWD+IFR+MS 212 10408.91 83.24 355.84 31.28 4347.46 7963.77 7871.10 1225.81 7965.98 8.85 4.29 BP _ MWD+IFR+MS 213 10440.94 85.26 356.35 32.03 4350.67 7994.68 7902.89 1223.64 7997.06 8.80 6.50 BP _ MWD+IFR+MS 214 10472.29 88.89 358.09 31.35 4352.27 8025.18 7934.16 1222.13 8027.73 8.76 12.84 BP _ MWD+IFR+MS 215 10503.16 90.12 358.93 30.87 4352.53 8055.41 7965.02 1221.32 8058.11 8.72 4.82 BP _ MWD+IFR+MS 216 10534.93 91.89 358.47 31.77 4351.98 8086.54 7996.77 1220.60 8089.39 8.68 5.76 BP MWD+IFR+MS 217 10565.83 90.69 357.18 30.90 4351.28 8116.71 8027.64 1219.43 8119.73 8.64 5.70 BP _ MWD+IFR+MS 218 10597.62 89.74 356.75 31.79 4351.16 8147.65 8059.38 1217.75 8150.86 8.59 3.28 BP _ MWD+IFR+MS 219 10628.72 89.85 356.13 31.10 4351.27 8177.86 8090.42 1215.82 8181.27 8.55 2.02 BP MWD+IFR+MS 220 10660.35 89.15 356.75 31.63 4351.55 8208.58 8121.99 1213.85 8212.20 8.50 2.96 BP _ MWD+IFR+MS 221 10691.40 88.69 357.63 31.05 4352.13 8238.83 8153.00 1212.33 8242.64 8.46 3.20 BP MWD+IFR+MS 222 10722.01 89.24 357.89 30.61 4352.69 8268.72 8183.58 1211.13 8272.71 8.42 1.99 BP _ MWD+IFR+MS 223 10753.24 85.72 359.58 31.23 4354.06 8299.29 8214.77 1210.45 8303.47 8.38 12.50 BP _ MWD+IFR+MS 224 10783.14 84.09 358.91 29.90 4356.71 8328.53 8244.54 1210.05 8332.87 8.35 5.89 BP _ MWD+IFR+MS 225 10812.81 83.61 359.31 29.67 4359.89 8357.47 8274.04 1209.60 8361.99 8.32 2.10 BP _ MWD+IFR+MS 226 10843.89 86.21 358.44 31.08 4362.65 8387.82 8304.99 1208.99 8392.52 8.28 8.82 BP MWD+IFR+MS 227 10874.81 87.56 358.72 30.92 4364.33 8418.07 8335.85 1208.22 8422.96 8.25 4.46 BP _ MWD+IFR+MS 228 10906.78 87.10 358.40 31.97 4365.82 8449.34 8367.78 1207.42 8454.44 8.21 1.75 BP _ MWD+IFR+MS 229 10937.75 87.40 359.13 30.97 ,4367.31 8479.66 8398.70 1206.75 8484.96 8.18 2.55 BP _ MWD+IFR+MS 230 10969.71 89.52 360.00 31.96 4368.16 8511.06 8430.65 1206.51 8516.54 8.14 7.17 BP _ MWD+IFR+MS 231 11000.65 92.28 0.17 30.94 4367.68 8541.51 8461.58 1206.56 8547.17 8.12 8.94 BP MWD+IFR+MS 232 11032.27 93.90 0.06 31.62 4365.97 8572.60 8493.15 1206.62 8578.44 8.09 5.14 BP _ MWD+IFR+MS 233 11063.16 93.83 359.77 30.89 4363.89 8602.92 8523.97 1206.57 8608.95 8.06 0.96 BP _ MWD+IFR+MS 234 11094.11 93.92 0.04 30.95 4361.80 8633.31 8554.85 1206.52 8639.51 8.03 0.92 BP MWD+IFR+MS 235 11124.86 93.46 359.57 30.75 4359.82 8663.49 8585.54 1206.42 8669.89 8.00 2.14 _ BP MWD+IFR+MS 236 11156.04 92.85 359.39 31.18 4358.11 8694.08 8616.67 1206.14 8700.68 7.97 2.04 BP MWD+IFR+MS 237 11187.30 92.01 357.80 31.26 4356.78 8724.67 8647.89 1205.37 8731.49 7.93 5.75 BP _ MWD+IFR+MS 238 11218.88 90.17 352.72 31.58 4356.18 8755.16 8679.35 1202.76 8762.29 7.89 17.11 _ BP MWD+IFR+MS 239 11250.69 89.55 350.66 31.81 4356.26 8785.33 8710.82 1198.16 8792.84 7.83 6.76 _ BP MWD+IFR+MS 240 11281.89 91.95 350.63 31.20 4355.85 8814.72 8741.60 1193.09 8822.64 7.77 7.69 BP _ MWD+IFR+MS • • SCHLUMBERGER Survey Report 15-Nov-2005 15:40:49 Page 10 of 10 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N1S- +EIW- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 241 11312.85 93.70 349.82 30.96 4354.32 8843.78 8772.07 1187.84 8852.13 7.71 6.23 MWD+IFR+MS BP 242 11343.66 93.77 350.27 30.81 4352.32 8872.65 8802.35 1182.53 8881.43 7.65 1.48 _ BP MWD+IFR+MS 243 11375.08 93.62 350.18 31.42 4350.29 8902.11 8833.25 1177.20 8911.35 7.59 0.56 BP MWD+IFR+MS 244 11423.00 93.62 350.18 47.92 4347.27 8947.05 8880.38 1169.05 8957.00 7.50 0.00 _ Projected to TD • [(c)2005 IDEAL ID10 2C O1] r~ MEMORANDUM • State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg P. I'. Supervisor ~Z,iz~~~~ DATE: December 2, 2005 FROM John Crisp, SUBJECT: MIT Development Well Petroleum Inspector PBU L-250 L1 PTD 205-153 December 02.2005: I traveled to BP's PBU L Pad to witness MIT on L-250 L1. I arrived on Location & reviewed PTD for this well. The PTD was for Development Oil well. Stated' In the well plan, the Operator Rep. Was clearly responsible for giving the Field: Inspectors 24 notice to allow us to witness the PT of casing & Tubing. This is not normaNy witnessed on Producers. Due to the time to travel to PBU L Pad I witnessed the successful pressure test. The production packer was set @ 6283 MD. 1 witnessed the packer set on 4 '/2" tubing in 7 5/8":casing. The packer set with 4200 psi. The pressure was bled down to 3500 psi. & a 30-minute pressure test was witnessed. After tubing was tested to 3500 psi, for 30 minutes the pressure was bled to 2500 psi. & The 4 1/2 " x 7 5/8" casing (along with production packer) were tested to a pressure of 3500 psi. For 30 minutes. Summary: I witnessed a successful pressure test of tubing, casing & production packer on PBU: L-250. Attachments: None Non-Confidential 2005-1203_tbg_csg_tests_PBU_L-250L 1 _j c. doc • Schlumberger Drilling & Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Dispatched To: AOGCC -Librarian Well No L-250L1 Date Dispatched: 29-Nov-05 Installation/Rig Nabors 9ES Dispatched By: Mauricio Perdomo LWD Log DeliveryV1.1,10-02-03 Data No Of Prints No of Floppies Surveys 2 1 Received By: Please sign and return to: Drilling & Measurements LWD Division V ''- 2525 Gambell Street, Suite 400 Anchorage, Alaska 99501 nrosel~slb.com Fax:907-561-8317 •... ~~~ ~ o`~, ~ i , ~ ~ ~ ~ ! ~~ ~ + ~ r l ~ ~ ~ ~ ~ ~ ' ~ ~ 1 n .~~ry ` ~°" ~ `~ # r~ ~ FRANK H. MURKOWSK/, GOVERNOR 7~T~+~~tt ~I-~~-t7t~r8~ ~~ ~`~ V~-7 ~ 333 W. 7'" AVENUE, SUITE 100 C~is-7s7R~~i~~is CUr'Il~'I153IUI~T ~ ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 27&7542 Robert Tirpack Senior Drilling Engineer BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: PBU L-250L 1 BP Exploration (Alaska) Inc. Permit No: 205-153 Surface Location: 2564' FSL, 3719' FEL, SEC. 34, T12N, Rl lE, UM Bottomhole Location: 1072' FSL, 2566' FEL, SEC. 22, T12N, 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 in 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. Please provide at least twenty- four (24) hours notice for a representative of the Commission to witness any required test. Contact the Commission's petroleum field inspector at (907} 659- 3607 (pager). Sincerely, Chairman DATED this~day of October, 2005 Orman cc: Department of Fish 8v Game, Habitat Section w/ o encl. Department of Environmental Conservation w/o encl. - ~.r°.~r~- rr~~l3 2~~~.. STATE OF ALASKA ~~~ ~ V EQ ALASKA OlL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL oCT ~ ~ 200 ~n AAC; ~5 nn5 Alaska tlil & Gas Cans. Culranissi0n 1 a. Type Of work ~ Dri11 ®Redrili ^ Re-Entry 1 b. Current W ell Class ^ Exploratory ®Development Oil Zone ^ Stratigraphic Test ^ Service ^Development Gas ^ Single Zone 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 11. Well Name and Number: PBU L-250L1 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 11615 ND 4343 12. Field /Pool(s): Prudhoe Bay Field / Orion 4a. Location of WeII (Governmental Section): Surface: 2564' FSL, 3719' FEL SEC. 34 T12N R11E UM (As Slaked) 7. Property Designation: ADL 047447 Schrader Bluff , , , , Top of Productive Horizon: 2485' FSL, 2466' FEL, SEC. 27, T12N, R11E, UM 8. Land Use Permit: 13. Approximate Spud Date: October 20, 2005 Total Depth: 1072' FSL, 2566' FEL, SEC. 22, T12N, R11E, UM 9. Acres in Property: 2560 14. Distance to Nearest Property: 2445' 4b. Location of Well (State Base Plane Coordinates): Surface: x- 583195 Y- 5978286 Zone- ASP4 10. KB Elevation (Height above GL):Plan 77.2 feet 15. Distance to Nearest Well within Pool 350' to L-118 16. Deviated Wells: Kickoff Depth: 6648 feet Maximum Hole Angle: 97 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 1884 Surface: 1468 1 asing Program: Size Spec~cahons Setting Depth To Bottom uantity o ement c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD inctudin sta a data 6-314" 4" x 4.8" 15.5# / 10. L-80 IBT 4979` 6636' 4289' 11615' 4343' Uncemented Excluder Screens 1g. PRESENT WELL CONDIT ION SUMMARY{To be`completed for RedriH AND Re-entry Operations} Total Depth MD (ft): 9670 Total Depth TVD (ft): 4428 Plugs (measured): None Effective Depth MD (ft): 9670 Effective Depth TVD (ft): 4428 Junk (measured): None "'Casing Length Size Cement Volume MD TVD n t 80' 20"x34" 60 sx Arctic Set A rox. 109' 109' 3191' 10-3/4" 585 sx AS Lite, 441 sx Class 'G' 3220' 2545' 6695' 7-5/8" 600 sx Class 'G' 6724' 4305' P 2970' 4-1/2" Uncemented Slotted Liner 6700' - 9670' 4301' - 4427' Perforation Depth MD (ft): Perforation Depth TVD (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 to the best of my knowledge. Contact Michael Triolo, 564-5774 Printed Name Robert Tirpack Title Senior Drilling Engineer Prepared By Name/Number: ~~ Si nature ~~'~ ~,,(,~„ _, Phone 564-4166 Date ~C /i ~ Terrie Hubble, 564-4628 Commission Use Onl Permit To Drill Number:.Z,cs _ / API Number: 50- 03. --~ 3 2..~ ~- p Permit Approval Date: /p i o3-~ See cover letter for other requirements Conditions of Approval: Sample equired Hydr en ulfide Measures Other: T-f S ~- rE " , c~ I,~ ~'~ , A roved B ^ Yes No Mud Log equ' ed ^ Yes ~No ^ Yes~No Directional Survey Required 'Yes ^ No APPROVED BY m THE COM ISSION D ! `~ Form 10-401 I~vised OB;I?.904 € 1 1 t') ' `t } S bmit In/Duplicate s ~i~ ~ ,.) ~`~ ~ f Prudhoe Bay L-250 ML Permit Well Plan Summary Well Narne: L-250, L-250 L1 & L-250 L2 T e of Well roducer or in'ector : Schrader OA and Nb Multilateral Producer Surtace Location: 2,564' FSL, 3,719' FEL, Sec. 34, T12N, Ri 1 E As-stake X = 583,194.82 Y = 5,978,285.78 L-250 OA Target Start: 733' FSL, 2,664' FEL, Sec. 27, T12N, R11 E X = 584,600 Y = 5,982,970 Z = 4,305' TVDss L-250 OA Target End: 4,434 FSL, 2,421' FEL, Sec. 27, T12N, R11 E X = 584,400 Y = 5,985,450 Z = 4,350' TVDss L-250 L1 Nb Target Start: ,.... 733' FSL, 2,664' FEL, Sec. 27, T12N, R11 E X = 584,380 Y = 5,983,500 Z = 4,200' TVDss L-250 L1 Nb Target End: 1,071' FSL, 2,566' FEL, Sec. 22, T12N, R11 E X = 584,230 Y = 5,987,365 Z = 4,265' TVDss L-250 L2 Nb Target Start: 826' FSL, 1,228' FEL, Sec. 27, T12N, R11 E X = 585,640 Y = 5,981,855 Z = 4,195' TVDss L-250 L2 Nb Target End: 4,672' FSL, 1,991' FEL, Sec. 35, T12N, R11E X = 590,175 Y = 5,980,475 Z = 4,285' TVDss AFE Number: ORD5M3596 KBE = 77.20' Ri Nabors 9ES Estimated Start Date: October 20 2005 O eratin da s to com lete: 32.11 OA MD 9,670' Nb-L1 MD 11,615' Nb-L2 MD 12,548' Current Well Information Distance to Nearest Property: Distance to Nearest Well in Pool: L-250 Original Well API #: L-250 L1 API Nb #: L-250 L2 API Nb #: Well Type: Current Status: H2S: BHT: BHP: Mechanical Condition L-250 Conductor: Base Flange height: Nabor 9ES: Materials Needed Well TVDrkb: TD 4,428' Well TVDrkb: TD 4,343' Well TVDrkb: TD 4,363' Max Inc. 91 ° Max Inc. 97° Max Inc. 96° KOP 500' KOP 6,648' KOP 6,238' L-250: 2,555' to unit boundary in OA, L-250 L1: 2,445' to unit boundary in Nb, L-250 L2: 4,430' to unit boundary in Nb. L-250: 350' to L-118 at Top Na 50-029-xxxxx-00 50-029-xxxxx-60 50-029-xxxxx-61 Schrader 0/N-sand Trilateral Producer New well, conductor is set 0 ppm from produced fluids (approximated to be around 10 ppm due to contaminated gas lift gas) 82 °F ~ 4,100' TVDss (Estimated) 8.6 - 8.7 ppg in Schrader N/0-Sands (Based on MDT's taken on L-216 in May '04) 20" X 34", 215.5 Ib/ft, A53 ERW set at 109' RKB Above MSL = 48.70' KB = 28.50 Permit 10/10/05 Prudhoe Bay L-250 ML Permit Materials Needed 'Surface'Casin _ Amount ~ °Descri 'tion 3,220' 10-3/a", 45.5#, L-80, BTC Casing (Burst: 5,210; Collapse: 2,470) 1 each 10-3/a", BTC Float Shoe and Float Collar 25 each 10-3/a' x 13-'/2" Bow Spring Centralizers 1 assembly FMC 11" 5m Gen 5 Wellhead System 1 lot 10-3/a" casing pups 5', 10', 20'. 1 each 10-3ta" TAM Port Collar Intermediate Casin Amount Descri tion 6,725' 7 6/" 29.7# L-80 BTC-M Casing (Burst: 6,890; Collapse: 4,790) 1 each 7-6/e" BTC-M Float Shoe and Float CoNar 95 each 7 6/e" x 9-'/8" Rigid Straight Blade Centralizers 50 each 7 5/8' Stop Rings 2 lots 7-s/e" casing pups 5', 10', 20' 4 each 7-6/8" RA Tag Production Liners' >Amount Descri tion 3 x Production Liners: 3,300' 4'/2", 12.6#, L-80, IBT-Mod Slotted Liner See Note below 5,651' 4.8" x 4", 15.5# Baker Excluder 2000 Screen (Medium mesh) See Note below 5,651' 4", 10.9#, L-80 IBT-M solid liner 75 each 4 ~/z" x 5 3/a" x 8" Straight Blade Centralizers 3 each 7 5/8" x 4-%z" Baker ZXP Liner Top Packer 1 each 4-'/2n Halliburton Float Shoes 2 each 4" Halliburton Float Shoes 5 each 6.4" x 15' EWS Swell Packer (Packer OD may be 6.3") 150 each 4" x 5 3/a" x 8" Straight Blade Centralizers 2 assemblies Baker Level 3 Hookwall Hangers with LEM 1 each Halliburton Glass /composite shear out plug (3.958" ID after shear) NOTE: The base plan is to utilize 50/50 screen htank_ This may channa na~p~ n., tho ac_riralc~f nrnfifo ~nr) Inn interpretations. Have extra pipe on location and in inventory to accommodate. r J Com letion: Amount Descri tion 6,200' 4-'h", 12.75 Ib/ft, L-80, TCII tubing 1 each Baker PRM Production Packer 7 8/" X 4-%2" 1 each 11" X 4-'h" FMC tubing hanger 1 each 4-'hs", 5m Cameron Tree 2 each Halliburton X-Nipple (3.813" ID) 1 each 4-~/2" Baker CMD Sliding Sleeve 4 each Camco 4-~/z" X 1" KBG-2 Gas Lift Mandrels 2 each Phoenix pressure gauge 6,200' Encapsulated I-wire for the Phoenix gauge 1 each 5.6" x 4-%z" Fluted WLEG Uni ue Machine Surface and Anti-Collision Issues Surtace Shut-in Wells: L-200 will require surface shut-in and wellhouse removal in order to move over well L-250. No other wells should require wellhouse removal and surface shut-in. NOTE: The rig Toolpusher may require other well houses to be removed to accommodate the rig positioning on L-250. Close Approach Shut-in Wells: There are NO wells requiring subsurface isolation for this profile. The toe of the L2 lateral does come within 100' center to center of the L-210i PB1, and as such had to be risk based to pass anti-collision. z Permit 10/10/05 G Survey and Logging Program Prudhoe Bay L-250 ML Permit 13-~/~" Hole Section: O en Hole Drillin Surface G ro if needed (have discussion with ODE on photo or E-line G ro) MWD / GR Cased hole: None 9-%e" Hole Section: Surveys will need to be IFR + MS corrected real time Open Hole Drillin.: MWD / GR / Res /Den / Neu /PWD Den 1 Neu recorded Open Hole: None Cased Hole: USIT Bond Lo onl as contin enc if oor cement 'ob 6-3/4" Hole Section: Surveys will need to be IFR + MS corrected real time Open Hole Drilling: MWD ! GR / Res / Azimuthal Den / Neu /AIM /PWD Den / Neu recorded Cased Hole: None Mud Program Summary 13-Y2" Surtace Hole Mud Pro erties: Spud -Freshwater Mud Interval /Densi Funnel vis YP Tauo PH Plastic Vis FL 0-1,800 8.6-9.2 250-300 50-70 10-18 8.5-9.0 20-45 NC-8 1,800-2,500 9.0-9. 200-250 30-45 8-16 8.5-9.0 20-40 6 2,500 - 3,200 9.3 - .5 200 30 - 40 9 - 14 8.5 - 9.0 14 - 20 5.5 - 7 Interval Specific Maintain Viscosity greater then 250 above the permafrost Objectives: Ensure fluid toss below permafrost is less then 6 Maintain mud tem erature below 50° F 9-'/B" Intermediate Hole Mud Pro erties: Freshwater Mud LSND PH: 9.0 - 9.5 {nterval /Densi Funnel vis YP Tauo PV API Filtrate MBT 8.8-9.3 45-60 22-30 3-6 12-18 4-6 <20 Maintain proper fluid rheology & lubricant concentration to achieve the directional Interval Specific requirements Objectives: Optimize mud rheology to maximize ROP while following ECD guidelines Reduce shaker blindin while drillin the UGNU Drill-n-Slide or EMI-697 . 6-3/a" Production Hole Mud Pro erties: LVT-200 MOBM Versa-Pro) Interval / Densit Stabilit YP Oil : H2O Ratio PV API Filtrate MBT 9.2 650 - 900 16 - 19 80 : 20 Initial < 19 < 5 < 6 Utilize PST to periodically check fluid bypass through screen sections to ensure proper PSD throughout each interval. Interval Specific Allow Oil /Water ratio to drift between 80:20 and 70:30 while maintaining standard Objectives: rheological properties. Minimize solids/liquid invasion by maintaining optimum PSD of bridging agents. Maintain minimal ECD's by reducing drill solids accumulation through utilization of the rigs solids controls stem and effective dilution. Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. Except for significant operational issues that may effect well integrity or pose safety concerns, an extension to the BOP period should not be requested. ROPE and drilling fluid system schematics are on file with the AOGCC. Intermediate and Production Intervals • Maximum anticipated BHP: • Maximum surface pressure: • Planned BOP test pressure: • Test Frequency: • Planned completion fluid: 1,884 psi ~ 4,160' TVDss (8.7 ppg EMW). Based on L-216 MDT's 1,468 psi ~ surface (based on BHP & a fuH column of gas from TD ~ 0.10 psi/ft) 3,500 psi (7--a/e" casing will be tested to 3,500 psi) 14 day test cycle Estimated 9.1 ppg Brine ! 6.8 ppg Diesel 3 Permit 10/10/05 Prudhoe Bay L-250 ML Permit Kick Tolerance/Integrity Testing: The 10-3/a" casing has been cemented to surface. The 7-°/8" casing will be cemented with 15.8 Ib/gal cement to (minimum of 700' MD above the Ma sand) within 1,000' of the surface casing shoe. Kick Tolerance / Inte ri Testin Summa Table Casin /Interval Acce table Influx Volume Mud Wei ht Ex Pore Press Min LOT /FIT Surface / 9-'/a" 51.1 9.2 8.7 11.1 LOT Intermediate / 6-3/a" Infinite 9.2 8.7 10.5 FIT NOTE: FIT's will only be done on the first horizontal lateral due to pressure connectivity between subsequent laterals. NOTE: All LOT / FiT will be taken with a minimum of 20-ft and a maximum of 50-ft of new hole drilled outside of the revious casin strin NOTE: If the LOT /FIT is less then the minimum notify the ODE immediately Disposal NO ANNULAR INJECTION ON 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. Formation Markers . ~;~;~faormati8d °To ;~/ ° ;. Dss'•~ .~¢TFt A~f)::~ ~ ~.• ore s~: ~ ::EMW ,~ H . cocarbons .. A G1 255 Xx 115 8.7 No SV6 890 Xx 401 8.7 No Fault #1 980 Xx 441 SV5 1,480 Xx 666 8.7 No SV4 1,600 Xx 720 8.7 Poss. Gas H drates Base Permafrost 1,680 1,937 756 8.7 No SV3 1,965 2,276 884 8.7 Poss. Gas H drates SV2 2,125 2,536 956 8.7 Poss. Gas H drates SV1 2,445 3,056 1,100 8.7 Poss. Gas H drates UG4 2,740 3,535 1,233 8.7 Thin coal UG4A 2,770 3,584 1,247 8.7 100' net Heavy Oil between 2770 - 2940' SS UG3 3,125 4,174 1,406 8.7 Thin coals/ oss. Hea oil Fault #2 3,545 4,878 1,595 UG1 3,640 5,037 1,638 8,7 80' net Heavy Oil between 3770 - 3910' SS Ma 3,920 5,507 1,764 8.7 40' net Heavy Oil between 3915 - 3950' SS Mb1 3 960 ' 5,579 1 782 8,7 45' net Heavy Oil between 3960 - 4010' SS Mb2 4 015 ' 5,688 1 807 8,7 60' net Heavy Oil between 4015 - 4090' SS Mc 4,090 5,867 1,841 g,7 15' net heavy oil between 4090 - 4130' SS Na 4,135 5,985 1,861 8.7 No Nb 4,160 6,051 1,884 8.7 Yes Nc 4,205 6,192 1,900 8.7 Yes OA 4,310 Xx 1,930 8.6 Yes 4 Permit 10/10/05 Gre ~Prudhoe Bay L-250 ML Permit CasinglTubing Program 48" 20" X 34" 215.5# A53 Weld 80' 29'!29' 109'/109' 13-~/2" 10-3/a" 45.5# L-80 BTC 3,191' 29'/29' 3,220'/2,545' 9-%e" 7-6/e" 29.7# L-80 BTC-M 6,695' 29'/29' 6,724'/4,305' 6-3/a" OA 4-~/2" slotted 12.6# L-80 BTC 2,970' 6,700'/4,301' 9,670'/4,427' 6-~/" Li Nb 4" x 4.8" Screen 15.5# L-80 IBT 2,490' ' ' ' ' 6-3/a" L1 Nb 4" Solid 10.9# L-80 IBT 2,490 6,636 /4 289 ' 11,616 /4,343 6-3/a" L2 Nb 4" x 4.8" Screen 15.5# L-80 IBT 3,161' ' ' ' ' 6-3/a" L2 Nb 4" Solid 10.9# L-80 IBT 3,161' 6,226 /4 214 ' 12,548 /4,363 Tubin 4-'/2" 12.75# L-80 TCII 6,217' 29'/29' 6,226'/4,214' NOTE: On N-sand laterals, the base case plan is to run 50% screens and 50% blank pipe. This may change based on the as-drilled profile and LWD logs. Cement Calculations Casin Size 10-3/a -in 45.5-Ib/ft L-80 BTC surface casing Basis 250°!° excess in permafrost. 30% excess below permafrost. To of tail cement 1,000' MD above shoe Cement Vol: Wash 20-bbl CW Spacer S acer 70-bbl 10.1-Ib/ al MudPush s acer Lead 464-bbl, 585-sx 10.7-Ib! al ASL - 4.44 ft /sx Cement to surface Tail 92-bbl, 441-sx 15.8-Ib/ al Premium G - 1.17 ft /sx To of tail: 2,219' MD Temp BHST = 55°F from SOR. BHCT 60°F estimated by Dowell to 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. Casin Size 7 5/e -in 29.7-Ib/ft L-80 BTC-M intermediate casing Basis Top of tail cement 700-ft MD above top of Schrader Ma-sand. 30% excess over gauge. Totat Cement Vol: Wash 25-bbl Water S acer 45-bbl 10.5-Ib/ al MudPush S acer Tail 128 bbl, 600-sx 15.8-1b/gal Premium - 1.20 ft /sx with D600G - 2gal/sk; D047 - 0.2ga1/sk; D174 - 3% BWOC; 6153- 0.15ga1/sk to of tail at 4,219-ft MD To Ma: 5,507' MD Temp BHST = 82°F from SOR, BHCT 77°F estimated by Dowell Drilling and Completion Scope of Work Pre-Rig Work: 1. A 34" x 20" 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. Driliing Rig Oaerations: 1. MIRU Nabors 9ES. Nipple up diverter spool and riser. Function test diverter. PU 4" DP and stand back in derrick. 2. MU 13-'/2" drilling assembly with MWD/GR and directionally drill surface hole to approximately 3,219' MD. The actual surface hole TD will be +/-100' TVD below the top of the SVi sand. 3. Run and cement the 10-3/a", 45.5#, L-80 surface casing back to surface (NOTE: TAM port collar to be used at WSL discretion). ND drilling spool and riser and NU casing /tubing head. NU BOPE and test to 3,500 psi. 5 Permit 10/10/05 ! Gre~Prudhoe Bay L-250 ML Permit 4. MU 9'/e" directional drilling assembly with MWD/GR/Res/Den/Neu/PWD and a Weatherford Drill-Mill at 11,000' from the bit. RIH to float collar. Test the 10-3/a" casing to 3,500 psi for 30 minutes. 5. Drill out shoe track. Circulate and condition mud. Displace well to new 8.8 ppg LSND drilling fluid. Drill 20' of new formation below rathole and perform a LOT. Directionally drill ahead to TD (Into top OA as per geologist) as per directional profile to 6,724' MD. 6. Make short trip as needed, work tight spots as seen. Circulate and condition mud at TD. Make sure hole is clean prior to POOH. POOH for casing stand back 4" DP. ~ ~; ~ '~!"' 7. MU and run 7 6/" 29.7# L-80 BTC-M casing to TD. Cement in one stage to 1,000' MD-a~avsthe surface casing shoe. Bump plug with seawater. Land casing on mandrel hanger. NOTE: With cementing so close to the surface casing shoe, verify circulation down the annulus prior to the cement reaching 500 psi compressive strength. Minimize the volume pumped away prior to freeze protecting. 8. Clean pits for displacement. Freeze protect 7 s/8" x 9-5/e" annulus with dead crude to 2,200' TVD. PU 4" DP. 9. PU 6-3/a" directional assembly with MWD / GR /Res / Azimuthal Den /Neu /PWD /AIM and RIH to the float collar. Test the 7 g/e" casing to 3,500 psi for 30 minutes. Displace well over to new 9.2 ppg Versapro MOBM. Drill out shoe track, circulate and condition mud. Drill 20' of new formation below rathole and perform an FIT to 10.5 ppg EMW. 10. Directionally drill ahead to TD geosteering through the OA to TD at 9,670' MD / 4,428' TVD (prognosed). Backream out of hole to the shoe, circulate and condition hole, RIH to TD and displace well to 9.2 ppg SFMOBM as per BP / MI displacement procedures. 11. POOH to near L1 Nb window depth, log up across the Nb, Nc sands to ensure proper window milling placements for subsequent laterals. POH LD drilling assembly. 12. MU and run 4-~/z" 12.6# L-80 lBT-M slotted liner with hanger and liner top packer to TD. Position liner top packer 90' below the planned L1 BOW. POOH and LD liner running assembly. NOTE: This assembly will require a plug to be run below the casing seal bore receptacle. See details in W P. 13. PU the 7 5/8" whipstock assembly. Set the whipsock on the OA liner top packer such that the top of the window is in the optimum position below the Nb sand to allow for at least 60' MD prior to entering the Nb sand (planned window exit: 6,623' MD). Orient whipstock to 15° left of highside. Shear off Whipstock. Displace wellbore back to MOBM as per BP / MI displacement procedures & mill window. POOH, LD milling assembly. 14. RIH with 6-3/a" drilling assembly with MWD / GR /Res / Azimuthal Den/ Neu /PWD /AIM to whipstock. Directionally drill the L1 Nb lateral to TD. Planned TD is 11,615' MD. Backream out of hole to the window, circulate and condition hole, RIH to TD and displace well to 9.2 ppg SFMOBM as per BP / MI displacement procedures. POOH. 15. Pull whipstock #1, LD whipstock and retrieval BHA. 16. Run and set the 4" x 4.8" Baker Excluder 2000 screen assembly, Swell Packers, and Baker Hook Hanger, POOH and LD liner running assembly. Run Baker Lateral Entry Module #1 with ZXP liner top packer. Circulate and condition mud, POOH and LD running tools. 17. PU the 7-6/S" whipstock assembly. Set the whipsock on the L1 Nb liner top packer such that the top of the window is in the optimum position above the Nb sand to allow for at least 60' MD prior to entering the Nb sand (planned window exit: 6,213' MD). Orient whipstock to 15° left of highside. Shear off of Whipstock, displace well back to MOBM as per BP / MI displacement procedures & mill window. POOH 18. RIH with 6-3/a" drilling assembly with MWD ! GR /Res / Azimuthal Den/ Neu / PW D I AIM to whipstock. Directionally drill the L2 Nb lateral to TD. Planned TD is 12,546' MD. Backream out of hole to the window, circulate and condition hole, RIH to TD and displace well to 9.2 ppg SFMOBM as per BP / MI displacement procedures. POOH. 19. Pull whipstock #2, LD whipstock and retrieval BHA. 20. Run and set the 4" x 4.8" Baker Excluder 2000 screen assembly, Swell Packers, and Baker Hook Hanger, POOH and LD finer running assembly. Run Baker Lateral Entry Module #2 with ZXP liner top packer. Circulate and condition mud. Clean pits for displacement. Displace over to 9.1 ppg KCL brine as per MI displacement procedures. POOH. 21. MU 4-'/z" 12.75# TCII, L-80 completion assembly and RIH. See completion schematic for details. Land tubing hanger and run in iockdown screws. 22. Drop RHC ball and rod and set packer as per Baker recommendation and test tubing to 3,500 psi and annulus to 3,500 psi. Shear DCK-1 valve. 23. Install two-way check and test to 1,000 psi. Nipple down the BOPE. Nipple up and test the tree to 5,000 psi. 24. Pull two-way check. Reverse in brine with Corexit to protect the annulus and freeze protect the well to 2,200' TVD. install VR plug in 7-a/e" casing annulus valves. 25. Install BPV. Secure the well and rig down /move off Nabors 9ES. Post-Riiq Work: 1. MIRU slickline. Pull the ball and rod /RHC plug. 2. Pull out DCK-1 shear valve, install GLV in all of the other mandrels as per the PE. 6 Permit 10/10/05 r L-250 ML Permit Drilling Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE I. Well Control /Reservoir Pressures: Sand_ ._, _-Heal Psi (Pp9) TVDss Comments... Nb 1,884(8.7) 4,160 Based on L-216 MDT pressures OA 1,930 (8.6) 4,310 Based on L-216 MDT pressures 11. Hydrates and Shallow gas: A. Gas Hydrates are expected at L-pad near the base of the permafrost. Setting casing through the SV1 should keep hydrate exposure from extending past the surface hole. Recommended practices and precautions for drilling hydrates should be followed in the surface hole. Occasionally hydrates are encountered below the SV1. If hydrates are encountered follow the recommended practice and apply good drilling operational practices. III. Lost Circulation/Breathing: A. Lost circulation is not expected at the L-Pad fault. In addition the fault will be crossed at high angle and move away quickly. B. We do not expect breathing on this well as we are above the more prevalent breathing shale's i.e. Seabee. IV. Kick Tolerance/Integrity Testing: A. The 10-3/a" casing has been cemented to surface. B. The 7 5/e" casing will be cemented with 15.8 Ib/gal cement to within 1,000' of the surface casing shoe. C. Integrity Testing: NOTE: If the LOT /FIT is less then the minimum notify the ODE immediately Kick Tolerance / Int r' Testin Summa Table Casin /Interval Acce table Influx Volume Mud Wei ht Ex Pore Press Min LOT /FIT Surface / 9-%" 51.1 9.2 8.7 11.1 LOT Intermediate / 6-3/a" Infinite 9.2 8.7 10.5 FIT NOTE: FIT's will only be done on the first horizontal lateral due to pressure connectivity between subsequent laterals. NOTE: All LOT /FIT will be taken with a minimum of 20-ft and a maximum of 50-ft of new hole drilled outside of the revious Casin strin V. Stuck Pipe A. There could be slight differential sticking across the reservoir while running the slotted liners. Keep the liners moving as much as possible and run one centralizer per joint to help with standoff. VI. 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 10 ppm is measured regularly at L pad 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 fow until the waterflood matures. VII. Faults A. Two faults are expected to be crossed at L-202. No losses are expected to be associated with this fault. Details are listed below for reference: Fault Location MD TVDss Throw Direction Uncertainty Fault #1 - SV6 1,065' 980' 60' to 80' West +/- 150' MD Fault #2 - UG3 5,008' 3,545' 50' to 70' South +/- 150' MD Fault #3 - OA Leg 8,543' 4,348' 0' to 10' North +/- 250' MD Fault #4 - L1 Nb Leg 5,171' 4,216' 0' to 10' North +/- 250' MD CONSULT THE L PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION 7 Permit 10/10!05 POST RIG -COMPLETION TREE: FMC 4-1/16" 5M Orig KB elev (N-9ES) = 28.5' L-250, L-250 L1 & L-250 L2 WELLHEAD: FMC Gen 5 System 11", 5M csg.head w/ 7" mandrel hanger & packoff 11" x 11", 5M, tbg spool w/ 11" x 4-1/2" tubing hanger with control line ports 11" X 4-1116" Adaptor Flange 20" X 34" 215.5 Ib/ft, A53 ERW Insulated 109' X-Nipple (3.813" ID) 2,200' TVD 4-1/2", 12.75 IbJft, L-80, TCII Coupling OD: 4.932" Drift/ID : 3.833"/3.958" 10-3/4", 45.5# L-80 BTC Csg @ 3,219' MD 4.5" Baker sliding sleeve with 3.813" ID 7-5/8" X 5-1/2" Baker PRM Packer Phoenix Pressure Gauge with encapsulated 1-wire to surface RA Tag TBD Halliburton X-Nipple (3.813" ID) 4.5" WLEG ^6,184' Junction Specifications: Junction ID through LEM Module without diverter: 3.65" 9.2 PPG Versapro SFMOBM below Completion ~, ` ,`' 4" x 6.4" OD Swell Packer on 4",10.9# base pipe ` ,~~ ~ 6-3/4" NB-2 Lateral 6,225'-12,548' Baker Hughes Hookwall Hanger @ 6,209` MD TOW in 7-5/8" casing @ 6;213' MD 80W in 7-5/8" casing @ 6,225` MD Well Inclination @ Window = 75° RA Tag TBD Baker Hughes Hookwall Hanger @ 6,620' MD TOW in 7-518" casing @ 6,623' MD BOW in 7-5/8" casing @ 6,635' MD Well InGination @ Window = 80° RA Tag TBD Baker ZXP Liner Top Packer & Hanger @~;~' MD .u 7 ~ c V-64~t'". 7-5/8", 29.7#, L-80, BTC-M Casing Drift: 6.75" 7-5/8" Casing Shoe @ 6,724' Casing 1D: 6.875" GATE 1 REV. BY 1 COMMENTS 10/11/2005 1 MIK TRIOLO 1 Lem 3Multi-Lateral, Nb laterals will have 4" x 4.8" OD Baker Excluder screens and 4" 10.9 liner throughout. Minimum ID= 3.476", Drift:3.351" 6-314" NB-1 Lateral 6,635'-11,615' OA lateral will have 4- 1/2" 12.6# slotted liner. Minimum ID= 3.958", Drift:3.833" 6-3/4" OA Lateral 6.724'- GP GL Complotlon ORION API NO: so-029-dxxxux-00 50-029 xxxxx-60 WELL: L 250 ML so-oss-xxxxx-g1 by Schlumherger L-250L1 (P8) Proaosal Client: BP Exploration Alaska field: Prudhoe Bay Unit - WOA StructurelSlot: L-PAD/L-250 (NM-15) Well: ~~~'~~ Plan L-250 (NM-15) Borehole: ~ Plan L-250L1 ~~ UVIIIIAPI#: 50029 Survey Name 1 Date: L-250L1 (P8) (August 29, 2005 Tort 1 AHD! DDI I ERD ratio: 198.157° 19446.55 ft / 6.700 / 2.175 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feel Location LatlLong: N 70.35064557, W 149.32453840 Location Grid NIE YIX: N 5978285.860 ftUS, E 583194.780 ftUS Grid Convergence Angle: +0.63613156° Vertical Section Azimuth: 10.890° Vertical Section Origin: TVD Reference Datum: N 0.000 ft, E 0.000 ft Rotary Table TVD Reference Elevation: 77.50 ft relative to MSL Sea Bed 1 Ground Level Elevation: 49.00 ft relative to MSL Magnetic Declination: 24.434° Total Field Strength: 57576.971 nT Magnetic Dip: 80.848° Declination Date: October 30, 2005 Magnetic Declination Model: BGGM 2005 North Reference: True North Total Corr Mag North -> True North: +24.434° Local Coordinates Referenced To: Well Head • Measured Vertical Comments Inclina0on Azimuth Sub-Sea TVD TVD NS EW Tool Face DLS Build Rate Walk Rate Northing Easting Latitude Longitude Depth Section ft de de ft ft ft ft ft de de 1100 ft de 1100 ft de 100 ft ftUS ftUS lop VvnlpslOCK bbLJ.UU !`J.`J5 16.41 4N'!.6`J wL61.3y 43Z3.V4 4131."Ib 14V`J.43 U.UUIi 4.UU -U.U3 -4.Ub by6Z43Z.UZ b64bb6.1Z N /U.3t)1`.l3114 W 14y.313UyUZ/ Base Whipstock 6636.00 82.01 18.41 4211.93 4289.43 4335.77 4143.34 1413.48 O.OOG 16.00 16.00 0.00 5982444.25 584562.04 N 70.36196442 W 149.31305732 KOP Crv 12/100 6648.00 82.01 18.41 4213.60 4291.10 4347.55 4154.62 1417.23 -2.94G 0.00 0.00 0.00 5982455.56 584565.67 N 70.36199522 W 149.31302682 6700.00 88.24 18.09 4218.02 4295.52 4398.91 4203.80 1433.45 -2.91 G 12.00 11.98 -0.61 5982504.92 584581.34 N 70.36212957 W 149.31289503 Crv 12/100 6714.70 90.00 18.00 4218.25 4295.75 4413.49 4217.77 1438.00 -48.58G 12.00 11.98 -0.61 5982518.94 584585.73 N 70.36216774 W 149.31285803 6800.00 96.75 10.29 4213.22 4290.72 4498.39 4300.23 1458.80 -49.04G 12.00 7.92 -9.04 5982601.61 584605.62 N 70.36239299 W 149.31268895 Crv 12/100 6803.16 97.00 10.00 4212.84 4290.34 4501.53 4303.31 1459.35 -105.66G 12.00 7.86 -9.13 5982604.70 584606.13 N 70.36240142 W 149.31268446 6900.00 93.75 358.79 4203.74 4281.24 4597.15 4399.28 1466.70 -106.71G 12.00 -3.36 -11.57 5982700.74 584612.42 N 70.36266359 W 149.31262459 7000.00 90.25 347.31 4200.24 4277.74 4692.11 4498.30 1454.62 -107.11 G 12.00 -3.50 -11.49 5982799.61 584599.24 N 70.36293411 W 149.31272259 Cnr 12/100 7007.02 90.00 346.50 4200.22 4277.72 4698.52 4505.14 1453.03 -89.69G 12.00 -3.53 -11.47 5982806.43 584597.57 N 70.36295280 W 149.312 0 End Crv 7034.98 90.02 343.15 4200.22 4277.72 4723.63 4532.12 1445.71 O.OOG 12.00 0.07 -12.00 5982833.32 584589.95 N 70.36302650 W 149.31 1 Crv 5/100 7716.90 90.02 343.15 4200.00 4277.50 5327.15 5184.75 1247.99 91.23G 0.00 0.00 0.00 5983483.65 584385.02 N 70.36480952 W 149.31440011 L-250L1 Tgt 2 7734.00 90.00 344.00 4200.00 4277.50 5342.35 5201.15 1243.15 94.79G 5.00 -0.11 5.00 5983500.00 584380.00 N 70.36485433 W 149.31443937 7800.00 89.72 347.29 4200.16 4277.66 5402.03 5265.08 1226.79 94.78G 5.00 -0.42 4.98 5983563.74 584362.93 N 70.36502898 W 149.31457220 7900.00 89.31 352.27 4201.00 4278.50 5495.29 5363.46 1209.05 94.74G 5.00 -0.41 4.98 5983661.90 584344.11 N 70.36529775 W 149.31471616 8000.00 88.90 357.26 4202.56 4280.06 5591.31 5463.00 1199.93 94.66G 5.00 -0.41 4.98 5983761.33 584333.88 N 70.36556969 W 149.31479015 8100.00 88.50 2.24 4204.83 4282.33 5689.37 5562.94 1199.49 94.54G 5.00 -0.40 4.99 5983861.25 584332.33 N 70.36584272 W 149.31479360 End Crv 8151.26 88.30 4.80 4206.27 4283.77 5740.18 5614.08 1202.64 O.OOG 5.00 -0.39 4.99 5983912.41 584334.90 N 70.36598243 W 149.31476798 Crv 4/100 8729.60 88.30 4.80 4223.45 4300.95 6315.00 6190.13 1250.97 -78.19G 0.00 0.00 0.00 5984488.92 584376.84 N 70.36755613 W 149.31437450 L-250L1 Tgt 3 8790.79 88.80 2.40 4225.00 4302.50 6375.67 6251.18 1254.81 -74.91 G 4.00 0.82 -3.92 5984550.00 584380.00 N 70.36772292 W 149.31434322 8800.00 88.90 2.04 4225.18 4302.68 6384.78 6260.38 1255.17 -74.91 G 4.00 1.04 -3.86 5984559.20 584380.25 N 70.36774805 W 149.31434031 End Crv 8837.85 89.29 0.58 4225.78 4303.28 6422.09 6298.22 1256.04 O.OOG 4.00 1.04 -3.86 5984597.04 584380.70 N 70.36785140 W 149.31433321 Crv 4/100 9573.19 89.29 0.58 4234.89 4312.39 7145.51 7033.47 1263.51 1.41 G 0.00 0.00 0.00 5985332.26 584380.01 N 70.36986003 W 149.31427146 WeIlDesign Ver SP 1.0 Bld(doc40x_56) L-250 (NM-15 )\Plan L-250 (NM-15)\Plan L-250L1\L-250L1 (P8) Generated 8/29/2005 3:22 PM Page 1 of 2 Measured Vertical Comments Inclination Azimuth Sub-Sea ND ND NS EW Tool Face DLS Build Rate Walk Rate Northing Easting Latitude Longitude Depth Section ft de de ft ft ft ft (ft de de 1100 ft de 1100 ft de 1100 ft ftUS ftUS L-GbULI Ig[4 abau.a4 yU. VU U.OV 4G30. UV 43lG AV /lbG`J/ (U9l.Gl -IGb3.b`3 3.Z"IV 4.UU 4.VU V.IU Dyi5O3bU. UU b2f4325U .UU N /U .3byyU23bU VV '14`J. 314GG`Jyb 9600.00 90. 36 0.62 4234 .97 4312. 47 7171.89 7060 .27 1263.79 3.21 G 4.00 3.99 0.22 5985359. 06 584380 .00 N 70 .36993326 W 149. 31426915 End Crv 9624.17 91. 33 0.67 4234 .61 4312. 11 7195.67 7084 .44 1264.06 O.OOG 4.00 3.99 0.22 5985383. 23 584380 .00 N 70 .36999929 W 149. 31426690 Crv 4/100 9805.78 91. 33 0.67 4230 .41 4307. 91 7374.35 7265 .98 1266.20 -160.33G 0.00 0.00 0.00 5985564. 77 584380 .12 N 70 .37049524 W 149. 31424928 L-250L1 Tgt 5 9841.02 90. 00 0.20 4230 .00 4307. 50 7409.00 7301 .22 1266.47 -162.57G 4.00 -3.77 -1.35 5985600. 00 584380 .00 N 70 .37059150 W 149. 31424705 9900.00 87. 75 359.49 4231 .16 4308. 66 7466.88 7360 .18 1266.31 -162.56G 4.00 -3.82 -1.20 5985658. 96 584379 .19 N 70 .37075259 W 149. 31424825 End Crv 9911.30 87. 32 359.36 4231 .64 4309. 14 7477.94 7371 .47 1266.20 O.OOG 4.00 -3.82 -1.20 5985670. 24 584378 .95 N 70 .37078343 W 149. 31424915 Crv 4/100 10074.96 87. 32 359.36 4239 .30 4316. 80 7638.12 7534 .94 1264.37 42.52G 0.00 0.00 0.00 5985833. 66 584375. 30 N 70 .37123001 W 149. 31426382 L-250L1 Tgt 6 10091.31 87. 80 359.80 4240 .00 4317. 50 7654.14 7551 .28 1264.25 37.18G 4.00 2.95 2.71 5985850. 00 584375. 00 N 70 .37127465 W 149. 31 10100.00 88. 08 0.01 4240 .31 4317. 81 7662.66 7559 .96 1264.23 37.17G 4.00 3.19 2.42 5985858. 68 584374. 89 N 70 .37129837 W 149. 4 314 End Crv 10107.66 88. 32 0.20 4240 .55 4318. 05 7670.18 7567. 62 1264.25 O.OOG 4.00 3.19 2.42 5985866. 33 584374. 82 N 70 .37131927 W 149. 3142 6 Crv4/100 10360.81 88. 32 0.20 4247 .97 4325. 47 7918.83 7820. 66 1265.11 -81.51G 0.00 0.00 0.00 5986119. 35 584372 .87 N 70 .37201056 W 149. 31425740 10400.00 88. 55 358.64 4249 .04 4326. 54 7957.22 7559 .83 1264.71 -81.47G 4.00 0.59 -3.96 5986158. 51 584372. 04 N 70 .37211758 W 149. 31426057 L-250L1 Tgt 7 10441.56 88. 80 357.00 4250 .00 4327. 50 7997.69 7901 .35 1263.13 -81.76G 4.00 0.59 -3.96 5986200. 00 584370. 00 N 70 .37223100 W 149. 31427334 10500.00 89. 14 354.69 4251 .05 4328. 55 8054.12 7959 .62 1258.90 -81.71 G 4.00 0.58 -3.96 5986258. 22 584365. 12 N 70 .37239020 W 149. 31430768 End Crv 10525.83 89. 29 353.66 4251 .41 4328. 91 8078.85 7985. 31 1256.28 O.OOG 4.00 0.58 -3.96 5986283. 87 584362. 21 N 70 .37246038 W 149. 31432894 TD / 4-112" Lnr 11615.19 89. 29 353.66 4265 .00 4342. 50 9119.27 9067. 94 1136.06 O.OOG 0.00 0.00 0.00 5987365. 00 584230. 00 N 70 .37541807 W 149. 31530453 • WeIlDesign Ver SP 1.0 Bld( docAOx_56 } L-250 (NM-15 )1PIan L-250 (NM-15)\Plan L-250L11L-250L1 (P8) Generated 8/29/2005 3:22 PM Page 2 of 2 by Schlumberger WELL L-250L1 (P8) FlELD Prudhoe Bay Unit - WOA srnucTURE L-PAD Mapleebc Paamelers Surl... LU~4m NA02/Abskd Slala Mares. Zune 04. US Feel MrscWlmeous MoOal'. BDGM 2005 Oq BU.BaB' Die. OUobe/30.3005 ld. ]0212124 uMmg. 59/8385809US Grq Conv. ~0636t 3156' Sbt. L-350 ~NM-151 TVD ReI'. R°lary Table ~//50 :1 above MSL) Maq Dec'. X24434° FS: 5]5]]O nT Lan. W149 1936.336 Easeng. ]61105 5~ale Fain. 0.99990 ]8625 Plan: L-250L1 (P61 Srvy Date: September 13. 3005 4200 4800 5400 6000 6600 7200 7800 8400 9000 3600 0 0 t° 4200 c d (0 U ?~ 4800 5400 3600 4200 (P8) • 4800 5400 4200 4800 5400 6000 6600 7200 7800 8400 9000 Vertical Section (ft) Azim = 9357°, Scale = 1(in):600(ft) Origin = 0 N/-S, 0 E/-V by ~ • Schlumberger WELL FIELD STRULNRE L-250L1 (P8) Prudhoe Bay Unit - WOA L-PAD Magnetk Parameters Surlace Lpwlion NAD2I Almka SUte P~anea, Zore Od. US Feet Miscellaneous MoEel BGGNI 2005 OiO. OO BCB' Dale'. October 30. 2005 Lal: N10112.]2n NoMiy'. 59]0205.0611US GnE LOnV'. ~06]fit 3t 56° Sloe. L2501NM-15) ND Rar. Rotary Tabk ll]SOflabpve MSLI Meg Dec. X26 a]6' FS'. S~ST]0 nT Lon. Wt691918.138 Easlirg 50]196 )B flUS Suk Fact'. 0.99990]Bfi25 L-250LI IPBI Srvy Date. September 1Z. 1005 0 800 1600 2400 9600 6800 6000 A n Z 7200 d= O O c 0) ~ 6400 V V V 5600 4600 4000 :.................................. r........................... ~nr N End Crv f :..................................:.......................... ~L-250L1 Tgt 7 _Crv d1100 End Crv ~L-250L1 Tgt 6 _crv aloo End Crv ^L-250L1 Tgt 5 ~~Crv 41100 ~~ End Crv •250L1 Tgt 4 crv also :End Crv i L-250L1 Tgt 9 Crv 41100 id Crv :..................................:.......................... : L-250L1 Tgt 2 Crv SI100 :..................................:.......................... = End Crv Crv 121100 Y Crv 121100 Crv 12/100 ' KOP Crv 12/100 : 7~ .......................................................... Base Whipstock Top Whipstock 0 800 1600 2400 «< W Scale = 1(in):800(ft) E »> 9600 6600 6000 7200 6400 5600 4600 4000 BP Alaska Anticollision Report - - - Cornpany: BP Amoco - - --- Date: 9!12!2005 Time: 09:14:05 Page: l Field: Prudhoe Bay Reference Site: PB L Pad Co-ordinate(NE) Reference: Well: Plan L-250 (NM-15), True North Reference Wcll: Plan L-250 (NM-15) Vertical ('fVD) Reference: L-250PIan 77.5 Reference Wcllpath: Plan L-250L1 Db: Oracle - - - -_ NO GLOBAL SCAN: Using user defined selection & scan criteria Reference: - Principal Plan & PLANNED PROGRAM ', Interpolation Method: MD Interval: 20.00 ft Error Model: ISCWSA Ellipse ~ Depth Range: 6623.00 to 11615.19 ft Scan Method: Trav Cylinder North ii Maximum Radius:10000.00 ft Error Surface: Ellipse + Casing , Survey Program for Definitive Wellpath Date: 8/29/2005 Validated: No Version: 9 Planned From To Survey Toolcode Tool Name ft ft 28.50 1500.00 Planned: Plan #12 V1 (0) GYD-GC-SS Gyrodata gyro single shots 1500.00 6623.00 Planned: Plan #12 V1 (0) MWD+IFR+MS MWD +IFR + Multi Station 6623.00 11615.19 Planned: Plan #8 V1 MWD+IFR+MS MWD +IFR + Multi Station Casing Points MD 'l'VD Diameter HoleBize Name ft ft in in 3368.84 2637.50 9.625 12.250 9 5/8" 6623.00 4287.39 7.000 8.750 7" 11615.19 4342.50 4.500 6.750 41/2" Summary <------- ------ Offset W'ellpath --__~______> Site Well Wcllpath i, PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad j PB L Pad i PB L Pad 4 PB L Pad PB L Pad ~ PB L Pad PB L Pad ~ PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad ' PB L Pad PB L Pad PB L Pad PB L Pad ~ PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad ' PB L Pad PB L Pad PB L Pad PB L Pad ' PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad PB L Pad PB l Pad PB L Pad L-01 L-02 L-02 L-02 L-02 L-03 L-101 L-102 L-102 L-102 L-103 L-104 L-105 L-106 L-107 L-108 L-109 L-110 L-111 L-112 L-114 L-114 L-115 L-116 L-117 L-118 L-119 L-120 L-121 L-121 L-122 L-124 L-124 L-124 L-200 L-200 L-200 L-200 L-200 L-201 L-201 Reference Offset MD 11iD ft ft L-01 V14 L-02 V1 L-02A V5 L-02AP61 V2 L-02PB1 V21 L-03 V5 L-101 V4 L-102 V2 L-102P61 V10 L-102PB2 V2 L-103 V23 L-104 V7 L-105 V4 L-106 V14 L-107 V14 L-108 V18 L-109 V12 L-110 V11 L-111 V24 L-112 V8 L-114 V15 L-114A V4 L-115 V7 L-116 V10 L-117 V11 7311.22 L-118 V9 6627.89 L-119 V9 6627.12 L-120 V8 L-121 V14 L-121A V1 L-122 V5 L-124 V11 7463.87 L-124P61 V5 7463.87 L-124PB2 V4 7463.87 L-200 V7 7105.49 L-200L1 V3 7105.49 L-200L2 V6 7105.49 Plan L-200L3 OA V1 Pla 7105.49 Plan L-200L3P61 OA V4 7105.49 L-201 V6 L-201 L1 V9 Ctr-Gtr No-Go Allowable Distance Arcu Deviation ft ft ft 7160.00 1641.17 136.16 1505.01 6820.00 611.77 106.54 505.23 7220.00 1865.85 139.60 1726.25 7680.00 2705.84 131.67 2574.17 7680.00 2705.84 131.67 2574.16 7680.00 2705.84 131.67 2574.17 6760.00 754.80 139.43 615.37 6760.00 754.80 139.42 615.38 6760.00 754.80 139.42 615.38 6760.00 754.80 139.51 615.29 6760.00 754.80 139.51 615.29 Warning/ 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 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 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 Pass: Major Risk Pass: Major Risk Pass: Major Risk Out of range Out of range BP Alaska Anticollision Report Company: BP Amoco Field: Prudhoe Bay Reference Site: PB L Pad Reference Wcll: Plan L-250 (NM-15) Reference Wellpath: Plan L-250L1 Sumrnar~~ <-------- - Offset Wellpath - -----> Site Well Wellpath Date: 9/12/2005 'l'ime: 09:14:05 Pale: 2 Co-ordinate(NE) Reference: Well: Plan L-250 (NM-15), True North Vertical (TVD) Reference: L-250 Plan 77.5 Db: Oracle Reference Offset Ctr-Ctr No-Go Allowable 119D MD Distance Area Deviation ft ft ft ft ft PB L Pad L-201 L-201 L1P61 V10 ~ PB L Pad L-201 L-201 L2 V5 PB L Pad L-201 L-201 L3 V2 ~ PB L Pad L-201 L-201 L3PB1 V6 i PB L Pad L-201 L-201PB1 V12 PB L Pad L-201 L-201 P62 V3 PB L Pad ~ L-202 L-202 V5 6623.49 7720.00 1654.83 151.43 1503.40 I PB L Pad L-202 L-202L1 V7 6623.43 9020.00 2941.82 151.97 2789.85 PB L Pad L-202 L-202L2 V6 6623.77 8200.00 2124.78 151.92 1972.86 PB L Pad L-202 L-202L3 V6 8872.70 9680.00 3621.62 166.60 3455.02 j PB L Pad L-210 L-210 V6 'i PB L Pad L-210 L-210PB1 V8 8872.68 9240.00 6102.25 187.47 5914.78 PB L Pad L-211 L-211 V6 7688.67 6340.00 3671.48 156.68 3514.79 PB L Pad L-211 L-211PB1 V6 7734.00 6660.00 4453.68 177.59 4276.08 i PB L Pad L-212 L-212 V11 9072.53 8680.00 743.96 178.20 565.76 PB L Pad L-212 L-212P61 V9 PB L Pad ! L-212 L-212P62 V2 8027.68 7100.00 1991.31 169.84 1821.47 PB L Pad L-214 L-214 V9 PB L Pad L-215 L-215P61 V2 Plan: Plan 6644.27 6600.00 2296.04 174.72 2121.31 ~! PB L Pad L-215 Plan L-215 V5 Plan: PI 6644.72 6600.00 2293.34 174.28 2119.06 PB L Pad L-216 L-216 V6 6825.00 6500.00 1034.72 138.71 896.01 I' PB L Pad L-218 L-218 V4 7629.51 6800.00 3157.25 170.02 2987.24 i PB L Pad NWE1-01 L-100 V2 PB L Pad NWE1-01 NWE1-01 V5 '~~ PB L Pad Plan L-123 (S-U) Plan L-123 V3 Plan: PI 6624.69 9660.00 5440.29 177.32 5262.97 PB L Pad Plan L-125 (N-F) Plan L-125 VO Plan: PI 8214.24 12402.50 5629.32 534.40 5094.92 PB L Pad Plan L-125 (N-F) Plan L-125P61 V1 Plan: 8000.00 11022.95 6727.70 195.43 6532.27 PB L Pad Plan L-213 (S-Q) Plan L-213 V5 Plan: PI PB L Pad Plan L-250 (NM-15) Plan L-250 V2 Plan: PI 6659.95 6660.00 1.34 94.94 -93.60 PB L Pad Plan L-50 (S-D) Plan L-50 V2 Plan: Pla ~I PB L Pad Plan L-51 (S-B) Plan L-51 V1 Plan: Pla PB L Pad Plan L-52 (S-E) Plan L-52 V1 Plan: Pla 6750.00 15113.40 5574.71 121.86 5452.85 L__- Warning 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 Out of range ~ Pass: Major Risk Pass: Major Risk ! Pass: Major Risk j Pass: Major Risk Out of range !, Pass: Major Risk Out of range '! Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Out of range Out of range Pass: Major Risk Pass: Major Risk Pass: Major Risk Out of range FAIL: Major Risk Out of range Out of range Pass: Major Risk • Field: Prudhoe Bay Site: PB L PaJ ~~'ell: Plan L-250 (NM-I5) Wellpath: Plan L-250L1 lygon 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Site: PB L Pad Drilling Target Conf.: 95% Description: Map Northing: 5983500.00 ft Map Easting : 584380.00 ft Latitude: 70°21'S3.476N X ft -80.00 -68.34 -59.46 -56.68 -53.91 -50.02 -197.09 -7.09 119.98 116.10 113.32 110.54 101.66 90.00 Target: L-250L1 Poly ft 0.89 1050.92 1850.94 2100.95 2350.96 2700.97 3867.78 3865.67 2699.08 2349.07 2099.06 1849.06 1049.03 -1.00 • Well: Plan L-250 (NM-15) Based on: Planned Program Vertical Depth: 4200.00 ft below Mean Sea Level Local +N/-S: 5201.14 ft Local +E/-W: 1243.15 ft Longitude: 149° 18'S1.982W Map E ft Map N ft 584300.00 5983500.00 584300.00 5984550.00 584300.00 5985350.00 584300.00 5985600.00 584300.00 5985850.00 584300.00 5986200.00 584140.00 5987365.00 584330.00 5987365.00 584470.00 5986200.00 584470.00 5985850.00 584470.00 5985600.00 584470.00 5985350.00 584470.00 5984550.00 584470.00 5983500.00 0000 __ ~~ ~, ~~ 00 00 ~; 0 0 ~0 0 1000 ~~ ~~~ ~~ ~~ 000 ~~0 ~~ ~, '~ 000 C~ PERMIT TO DRILL 20 AAC 25.005 • (e) If a well has multiple well branches, each branch requires a separate Permit to Drill. If multiple well branches are proposed from a single conductor, surface, or production casing, the applicant shall designate one branch as the primary wellbore and include all information required under (c) of this section with the application for a Permit to Drill for that branch. For each subsequent well branch, the application for a Permit to Drill need only include information under (c) of this section that is unique to that branch and need not include the $100 fee. • ~ TRANSMITAL LETTER CHECK LIST CIRCLE APPROPRIATE LETTER/PARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELL NAME PTD# CHECK WHAT ADD-ONS "CLUE" APPLIES (OPTIONS MITLTI The permit is for a new wellbore segment of LATERAL existing well , Permit No, API No. (If API number Production should continue to be reported as last two (2) digits a function of the original API number stated are between 60-69) above. PILOT HOLE In accordance with 20 AAC 25.005(f), all (PH) records, data and logs acquired for the pilot hole must be clearly differentiated in both name (name on permit plus PH) and API number (50 - 70/80) from records, data and logs acquired for well (name on permit). SPACING The permit is approved subject to full EXCEPTION compliance with 20 AAC 25.055. Approval to perforate and produce/infect is contingent upon issuance of a conservation order approving a spacing exception. (Company Name) assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the SAMPLE Commission must be in no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Rev: 04/01/05 C\jody\transmittal_checklist WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, ORION SCHR BL OIL - 640135 Well Name: PRUDHOE BAY UN GRIN L-250 L1 Program DEV Well bore seg ^~ PTD#:2051530 Company BP EXPLORATION (ALASKA) INC Initial Classffype DEV / 1.01E GeoArea Unit ONOff Shore On Annular Disposal ^ Administration 1 Permit-fee attached_________ --------------- -- - Yes.__-____-_-.--- ----- - - 2 Lease.number appropriate- - - - - Yes - - - - - - - - 3 Uniquewell_nameandnumber_______________________________..___- Yes_-_____--_ 4 Well locatedi_n_a_defined_pool__--______________________________-_- Yes_____---.__ 5 Well located proper distance-from drilling unit_boundary. - . - . - - - - . - _ - - - - Yes - - . -- -- - 6 Well located properdistance-f[o_motherwells____________ _________________ Yes--___-___---_-____-__-.______-_____ - - - 7 Sufficient acreage availablein_drillingun~___________________-_______--- Yes____--______-_-________-.___-____-__-_----__- -- 8 If deviated,is_wellboreplat_inclu_ded-------------------_--_-._--__--_ Yes_____ - -- - 9 Operator only affected party - - - - Yes - - - - - - - - - 10 Operator has_appropriate.bondinforce --- - ----- -- -------- -- -- Yes-- - -- -._----- -- - •-------~ ---------- -- ----- - --- 11 Permitcanbeissuedwithoutc~nseruationorder____-----.-_____-___- Ye5_______________________ __________________________.__-____-______-.- __.. Appr Date 12 Permit_canbeissuedwithoutadminist[ative_approval_________________________ Yes_____--_-__-_-_-_____-.-_ __,-__-_____--______,__-_____.--___---___ _-_ RPC 10112/2005 13 Can permit be approved before 15-day wait Yes 14 Well located within area and_strataauth4rizedby_InjectionOrde[#(put1O#in_comments)_(Far- NA_________________________ ______-___________-______--_____--__-___---__--_ 15 Allwells_within114.mileareaofreyiewidentified(Forservicewellonly)_______________ NA___-_____,__.--__.______--.-__.___.__--_ 16 Pre-produced injector; duration of pre production less than_ 3 months-(For service well only) NA- _ - - - -- -- - 17 ACMP-FindjngofConsistency_h_asbeenissued_for_thisp[oject__________-___-__-_ NA__________ ______________________-_______--_____---_____-----___-__-___-___ Engineering 18 _C_onductorsiring.provided - - - - ~ - - - - - 19 Surface-casing-protects all known USDVVS______________ _______________ NA-____-_._ ______-_-___-_,_ -- 20 CMT_vol.adeguate_tocircul_ate-on conductor&surf_csg,__ _____.-_-_--.--.. NA_________________________ --------------------------------------------------- 21 CMT_v_ol-adequate_to iie-in long string to surf csg- - - - - - ~_ - - - - - 22 CMT_willcoverallknown-productiyehorizon_s__________ ___________________ _N_o___----.Slotted,-.______-.-_--_-..-_-___-.._---__..-____.----------. 23 Casing designs adequate forC,TB&permafrost--------------------------- Yes------------- -------.--- ------------- --------------.-------------.- -- 24 Adequate tankage-o_rreserve pit _.._.-______________ __________--.. Yes___-.-Nab_ors_9ES,______----____-__-_____- - -- 25 Ifa_re-drill,has_a-10-403 for abandonment been app_roved______________________ NA-______Lateralwellbranch,_____-.______________--_____-__-.____---______- __-._ 26 Adequatewellboreseparation-proposed ___ __ _ _--- _ _- .- Yes__- _ _____________ _ __ __-.______.-...______.___ __ _ --------------- 27 If diverterlequired, does it meet regulations_ - - _ - - _ - - - _ - - - NA_ - - - - _ - Sidetrack. Appr Date 28 Drillingfluid-programschematic&equiplistadequate----- ------------_-.--_ Yes_-----Max MW-9,5ppg,-_-.__-_-_____-__-__-__-_____----__-_--_--___- ___. WGA 10113!2005 29 BOPEs,dolheymeetregu_lotion----------------------------- Yes---------------------------------------------------------------- ---.- 30 BOPS-ptessratingapprop[iate;testto_(putpsigincomments)___________________ Yes-_----_Testto3500_psi._MSP1468 psi._-_________--______-_-__-__--___-_-__--__.,-__- 31 Choke-manifold complies wIAPI-RP-53 GMay 84) _ _ _ _ Yes _ _ _ _ _ _ _ _ _ _ _ _ 32 Work willoccurwithoutoperationshutdown_______________________________ Yes__--____----- ___-___-___.---______--__-____-__-______--___-_______-- __-. 33 Is presence of H2$ gas. probable - - - - - - N0 - Not an H2S pad. - - - - - - - - - 34 Mechanical condition of wells within AOf2 verified (F9[se[vice well only _ _ NA_ _ - - - _ - _ . - - - _ - _ - -- -- - Geology 35 Permit_canbeissuedw/ohydrogen-sulfide measures----___ __---______---- Yes___----_------------------------------------------ - - 36 Data-presented on potential overpressure zones_______--..____--_.--_ Yes--.-_-__.-_-______.- - - Appr Date 37 SeismicanalysisofshallQwgas_zones-----_____--.--- _-____--- Yes______-..___--._______________________________________..-____-.--__-_-_ RPC 10!1312005 38 Seabed conditionsuryey-(ifoff-shore)__________________________________ Yes_--_-___--_____-_-_-____-_.-_ - - - - 39 Contact namelphone_for_weekly progress_reports [exploratory onlyj_ _ _ NA_ - -- - - Geologic Engineering c Commissioner: er: Date mmi Date Date: Commission )r1 / P~S l V ~ ~~~~ ~~~~~/P,~ ~o-~.~ ~~ ~Q / ~"'~ / Z O J •
