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211-118
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LI 1 zt�Z7- !BAKER HUGHES www.bakerhughes.com PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION (ALASKA), INC COUNTY NORTH SLOPE BOROUGH WELL NAME W-12AL1 STATE ALASKA HELD PRUDHOE BAY UNI I UA I L 1/4/2012 THIS DISTRIBUTION LIST AUTHORIZED BY: Alfredo Martinez SO#4328195 Log CD Log CD Copies Copies Client / Partners Copies Copies Client / Partners 2 Company BP EXPLORATION(ALASKA), INC Company Person PETROTECHNICAL DATA CENTER Person Address LR2-1 Address 900 E BENSON BLVD ANCHORAGE,AK 99508 1 1 Company EXXON MOBIL PRODUCTION CO Company Person. FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082 A HOUSTON,TX 77002 1 1 Company STATE OF ALASKA-AOGCC Company Person CHRISTINE MAHNKEN Person Address 333 W.7TH AVE. Address SUITE 100 ANCHORAGE,AK 99501 Company Company Person Person Address Address Company Company Person Person Address Address Company Company Person Person Address Address Page 1 of 1 Letter of Transmittal BAKER Date: HUGHESMarch 30, 2012 To: From: State of Alaska AOGCC Baker Hughes INTEQ 333 W. 7th Ave., Suite 100 795 East 94th Avenue Anchorage, Alaska 99501 Anchorage, Alaska 99515 Bill Michaelson Please find enclosed the directional survey data for the following well(s): R-14B F-29BPB 1 F-29B F-31APB1 F-31A W-12AL1 18-15CPB1 18-15C 18-08BPB 1 18-08B Enclosed for each well(s): 2 hardcopy prints of directional survey reports 1 compact disk containing electronic survey files Please sign and return one copy of this transmittal form to: BP Exploration (Alaska) Inc. Petrotechnical Data Center, LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 to acknowledge receipt of this data. RECEIVED BY: V. a , State of Alaska AOGCC DATE: 3 2 tea-, STATE OF ALASKA { ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1 a. Well Status: ® Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended 1 b. Well Class: 20AAC 25.105 20AAC 25.110 ® Development 0 Exploratory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One 0 Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Nymber: BP Exploration(Alaska) Inc. 1/20/2012 211-118 ✓ 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 1/15/2012 50-029-22023-60-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 1/16/2012 PBU W-12AL1 1542'FNL, 1196'FEL, SEC.21,T11 N, R12E, UM 8. KB(ft above MSL): 83 67' 15.Field/Pool(s): Top of Productive Horizon: 657' FNL,2113'FEL, SEC. 33,T11 N, R12E, UM GL(ft above MSL): 53.17' Prudhoe Bay Field/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool 3568' FNL,2225'FEL, SEC. 33,T11 N, R12E, UM 17096' 8902' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 612049 y- 5958715 Zone- ASP4 17096' 8902' ADL 028263&047452 TPI: x- 611298 y- 5949028 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 611236 y- 5946116 Zone- ASP4 None 18.Directional Survey: ®Yes 0 No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900'(Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD: MWD DIR, GR, RES 16764' 8932' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE Top BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" Conductor Surface 110' Surface 110' 13-3/8" 68# L-80 40' 3029' 40' 2685' 17-1/2" 4338 sx Coldset II 9-5/8" 47# NT8OS 36' 12905' 36' 8434' 12-1/4" 1211 sx Class'G' 7" 26# L-80 12747' 13577' 8344' 8802' 8-1/2" 151 sx Class'G' 4-1/2" 12.6# L-80 13410' 16764' 8724' 8932' 6" 728 sx Class'G' 24. Open to production or injection? ® Yes 0 No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/TVD) (MD+TVD of Top&Bottom;Perforation Size and Number): 4-1/4"Open Hole 4-1/2", 12.6#, L-80 13411' 13355'/8698' MD v. MD TV 16764'-17096' ;932'-8902'R GENE® 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. h ,.J !"±:its ` G DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED :-A.-E.See FEB 1 7 2012 2500' Freeze Protected w/43 Bbls of Diesel a Oil&Gas Cons.Commission 27 l Alas, Anchora�P --ODUCTION TEST Date First Production: L---------- Method of Operation(Flowing,Gas Lift,etc.): Not on Production Yet N/A Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? 0 Yes IS No Sidewall Core(s)Acquired? 0 Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. None RBDMS FEB 212012 ArWb-L S l> Form 10-407 Revised 12/2009 CONTINUED ON REVERSE tri.... ,,2/ /j 2. �j' cap it Original Only 29. GEOLOGIC MARKERS(List all formations and markers encountered): 30. ruRMATION TESTS NAME MD TVD Well Tested? 0 Yes IS No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 MC 25.071. From W-12A None Top of Sadlerochit 13880' 8905' Kicked off W-12AL1 within Sadlerochit/Zone 4(at 16764') Top of Sadlerochit/Base Eileen 16994' 8905' Formation at Total Depth(Name): Eileen(From Base) 16994' 8905' 31.List of Attachments: Summary of Daily Drilling Reports,Well Schematic Diagram,Surveys 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. 7 Signed: Terrie Hubble �A,(,Q 1�� Title: Drilling Technologist Date: O`('60 1 I PBU W-12AL1 211-118 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No./Approval No. Drilling Engineer: Matt Ross, 564-5782 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item la: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this 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: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 MC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 MC 25.071. Form 10-407 Revised 12/2009 Submit Original Only TREE= 4-1/16"FMC Vi, 12A L 1 & L2 F. NSW70°@ 7 '*** WELLHEAD= FMC � PERFS @ 15700OTE :'W. 15940ELLANGLE-' POSSIBLY SQZ13(0568/14/07) ACTUATOR= BAKER &MILLED OUT(02/24/09)-SEE AWGRS*** KB.ELEV= 83.67' Operation Shutdown BF.ELEV= 54.37' ! KOP= 880' J [ Max Angle= 98 @ 14783' Datum MD= 13782' I 2159' —4-1/2"HES X NIP,ID=3.813" Datum TVD= 8800'SS GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 7 3873 3198'52 MMG DOME RK 16 09/17/07 13-3/8"CSG,68#,L-80,ID=12.415" — 3079' 6 5965 4409 r 55 MMG DMY RK 0 11/22/98 5 7408 5226 r 56 MMG DOME RK 16 09/17/07 4 8735 5989'54 MMG DMY RK 0 11/22/98 Minimum ID = 3.80" @ 13399' 3 10062 678952 MMG DOME RK 16 09/17/07 4-1/2" HES XN NIPPLE milled out 2 11390 7597 r 57 MMG SO RK 22 09/17/07 1 12471 8197 r 59 MMG DMY RK 0 03/22/07 12747' —TOP OF BKR TIEBACK SLV, ID=7.50" 12754' —9-5/8"X 7"BKR ZXP PKR, ID=6.188" 12760' H9-5/8"X 7"BKR HMC HGR,ID=6.188" TOP OF CEMENT 12710' EZSV —i 13070'1 9-5/8"CSG,47#,NT-80S, ID=8.681" d 14075' \ 9-5/8"MILLOUT WINDOW(W-12A) 12905'- 12965' PERFORATION SUMMARY 13411' I— 4-1/2"TBG, 12.6#, L-80, .0152 bpf, ID=3.958" REF LOG:BHI CCL/GR ON 1/10/12 ' ' 13344' I—4-1/2"HES X NIP, ID=3.813" ANGLE AT TOP PERF: 93 @ 16775' Note: Refer to Production DB for historical perf data - g X 13355' I—7"X 4-1/2"BKR S-3 PKR,ID=3.875" SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 16775- 17525 Open ' I 13379' —4-1/2"HES X NIP,ID=3.813" ' I— 4-1/2"HES XN NIP,ID=3.80"(milled out) 13410' I-- 7"X 4-1/2"BKR TIEBACK SLV,ID5.25" / • 13411' I—4-1/2"WLEG,ID=3.958" 13423' —ELMD TT LOGGED 07/30/99 13416' —7"X 5"BKR ZXP LTP w/HGR,ID=4.458" *SEE SAFETY NOTE FOR DETAILS 7"LNR,29#,L-80,MOD, .0371 bpf, ID=6.184" H 13577' 14574' ]-4-1/2"MARKER JT 15609' I—4-1/2"MARKER JT IZA L t ' L1: 16774'- 17096'v" Cement Milled Out to Full Liner ID Drift g , Re-perforate 750 ft Zn 4 Ma C 2, k ; a v Mill cement to 19,094' 4-1/2"LNR, 12.6#, L-80, NSCT, .0152 bpf, ID=3.958" — 20888' ����� 20800' I— PBTD DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 ORIGINAL COMPLETION 02/24/09 RLM/PJC MILL CMT PLUG WELL: W-12A L1 11/22/98 JJONES SIDETRACK NABORS 18E 03/01/09 PJC DRAWING CORRECTIONS PERMIT No: 211-118 05/03/07 CJA/PJC SET CBP 01/19/11 MR CTD SIDETRACK API No: 50-029-22023-01 05/13/07 JGM/PJC CEMENT PLUG SEC 21,T11 N,R12E, 1542'SNL&1196'WEL 09/17/07 DAV/PJC GLV C/O 01/14/09 CJA/SV MILL CMT PLUG(12/18/08) BP Exploration (Alaska) EMI BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB W Pad W-12 500292202300 W-12AL1 Survey: MWD Survey Report - Geographic 30 January, 2012 Hill 0 b BAKER HUGHES Survey Report Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-12 Project: Prudhoe Bay TVD Reference: W-12A @ 83.67ft(Nabors 18E) Site: PB W Pad MD Reference: W-12A @ 83.67ft(Nabors 18E) Well: W-12 North Reference: True Wellbore: W-12AL1 Survey Calculation Method: Minimum Curvature Design: W-12AL1 Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB W Pad,TR-11-12 Site Position: Northing: 5,957,194.18ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.343 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 0.84° Well W-12 API No 500292202300 11 Well Position +N/-S 0.00 ft Northing: 5,958,715.07 ft Latitude: 70°17'46.155 N +E/-W 0.00 ft Easting: 612,049.02 ft Longitude: 149°5'33.616 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 47.83ft Wellbore W-12AL1 API No 500292202360 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2011 1/1/2012 21.04 80.97 57,651 Design W-12AL1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 16,739.39 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) lft) (Ill (0) 30.50 0.00 0.00 184.54 Survey Program Date: 1/30/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 54.60 12,896.69 Survey#1 GCT MS(W-12) GCT-MS Schlumberger GCT multishot 12,905.00 16,739.39 Survey#2 MWD(W-12A) MWD MWD-Standard 16,764.50 17,095.00 MWD(W-12AL1) MWD MWD-Standard 1/30/2012 1:28:33PM Page 2 COMPASS 2003.16 Build 73 Mal b BAKER HUGHES Survey Report Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-12 Project: Prudhoe Bay TVD Reference: W-12A @ 83.67ft(Nabors 18E) Site: PB W Pad MD Reference: W-12A @ 83.67ft(Nabors 18E) Well: W-12 North Reference: True Wellbore: W-12AL1 Survey Calculation Method: Minimum Curvature Design: W-12AL1 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 16,739.39 93.05 154.80 8,933.06 -12,417.88 -1,287.05 5,946,280.44 610,947.34 70°15'44.024 N 149°6'11.068 W TIP 16,764.50 92.40 151.09 8,931.86 -12,440.22 -1,275.64 5,946,258.29 610,959.08 70°15'43.804 N 149°6'10.736 W KOP 16,792.14 96.27 147.14 8,929.77 -12,463.86 -1,261.50 5,946,234.86 610,973.57 70°15'43.572 N 149°6'10.324 W 16,829.85 98.59 141.60 8,924.89 -12,494.24 -1,239.73 5,946,204.80 610,995.78 70°15'43.273 N 149°6'9.691 W 16,859.53 98.47 127.41 8,920.47 -12,514.76 -1,218.86 5,946,184.60 611,016.96 70°15'43.071 N 149°6'9.083 W 16,895.48 97.72 117.78 8,915.39 -12,533.91 -1,188.91 5,946,165.90 611,047.19 70°15'42.883 N 149°6'8.211 W 16,924.84 96.14 107.69 8,911.84 -12,545.16 -1,162.06 5,946,155.06 611,074.20 70°15'42.773 N 149°6'7.430 W 16,955.17 95.16 99.14 8,908.85 -12,552.15 -1,132.73 5,946,148.51 611,103.63 70°15 42.704 N 149°6'6.577 W 16,984.61 95.93 88.82 8,906.00 -12,554.18 -1,103.54 5,946,146.91 611,132.85 70°15'42.684 N 149°6'5.727 W 17,014.37 93.16 96.85 8,903.64 -12,555.65 -1,073.93 5,946,145.88 611,162.47 70°15'42.669 N 149°6'4.866 W 17,048.69 90.83 116.34 8,902.43 -12,565.40 -1,041.23 5,946,136.62 611,195.31 70°15'42.574 N 149°6'3.914 W 17,095.00 90.83 116.34 8,901.76 -12,585.95 -999.73 5,946,116.70 611,237.11 70°15'42.372 N 149°6'2.706 W TD Targets Target Name -hit/miss target Dip Angle Dip Dir. TVD +NI-S +El-W Northing Easting -Shape (°) (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude W-12AL1 Polygon 0.00 0.00 83.67 -13,389.56 -680.76 5,945,318.00 611,568.00 70°15'34.468 N 149°5'53.422 W -survey misses target center by 8860.37ft at 17095.00ft MD(8901.76 TVD,-12585.95 N,-999.73 E) -Polygon Point 1 83.67 -13,389.56 -680.76 5,945,318.00 611,568.00 Point2 83.67 -13,304.82 -863.53 5,945,400.00 611,384.00 Point 3 83.67 -12,709.01 -976.67 5,945,994.00 611,262.00 Point 4 83.67 -12,589.36 -1,219.94 5,946,110.00 611,017.00 Point 5 83.67 -12,330.60 -1,335.10 5,946,367.00 610,898.00 Point6 83.67 -12,462.78 -854.98 5,946,242.00 611,380.00 Point 7 83.67 -12,786.50 -743.78 5,945,920.00 611,496.00 W-12AL1 Target 1 0.00 0.00 8,905.67 -12,517.90 -1,115.85 5,946,183.00 611,120.00 70°15'43.041 N 149°6'6.086 W -survey misses target center by 36.04ft at 16969.89ft MD(8907.47 TVD,-12553.82 N,-1118.17 E) -Point W-12AL1 Target 2 0.00 0.00 8,903.67 -12,855.07 -840.82 5,945,850.00 611,400.00 70°15'39.725 N 149°5'58.081 W -survey misses target center by 312.54ft at 17095.00ft MD(8901.76 TVD,-12585.95 N,-999.73 E) -Point W-12AL1 Target 3 0.00 0.00 8,918.67 -13,230.88 -791.41 5,945,475.00 611,455.00 70°15'36.029 N 149°5'56.643 W -survey misses target center by 677.95ft at 17095.00ft MD(8901.76 TVD,-12585.95 N,-999.73 E) -Point Survey Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +EI-W (ft) (ft) (ft) (ft) Comment 16,739.39 8,933.06 -12,417.88 -1,287.05 TIP 16,764.50 8,931.86 -12,440.22 -1,275.64 KOP 17,095.00 8,901.76 -12,585.95 -999.73 TD Checked By: Approved By: Date: 1/30/2012 1:28:33PM Page 3 COMPASS 2003.16 Build 73 North America-ALASKA- BP Page 1 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type. RE-ENTER-ONSHORE (RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/22/2011 00:00 - 04:15 4.25 MOB P PRE PJSM, REVIEW RIG MOVE CHECKLIST- PREP RIG FOR MOVE. MOVE CUTTINGS BOX AND TIGER TANK. WARM UP MOVE SYSTEM. PREP OUTSIDE EQUIPMENT. OPERATE RIG JACKS,RAM SEAL WEEPING HYDRAULIC FLUID ON RIGHT REAR JACK DUE TO-30 DEG AMBIENT TEMP. PLACE TRUNK HEATERS ON JACKING SYSTEM TO WARMUP,ROTATE WHEELS. 04:15 - 04:30 0.25 MOB P PRE PJSM WITH CREW,TP,WSL AND NORDIC FIELD SUPERINTENDANT. REVIEW SOP FOR PULLING OFF WELL AND ROUTE INSPECTION. 04:30 - 05:30 1.00 MOB P PRE JACKUP RIG,PULL OFF WELL. MOVE RIG DOWN PAD. 05:30 - 07:30 2.00 MOB P PRE REMOVE RIG MATS FROM AROUND W-21. 07:30 - 11:00 3.50 MOB P PRE SPOT MATS AT ANGLE AROUND W-12 WELLHEAD. MOVE RIG OVER WELL. SET DOWN ON MATS. I ACCEPT RIG AT 1100 HRS ON 12/22/11. 11:00 - 15:00 4.00 _ MOB P PRE RIG UP SUPPORT EQUIPMENT. MOVE SAT CAMP AT SPOT NEAR RIG. CALL FOR DSM TO MOVE AND RIG UP FLOW BACK EQUIPMENT. 15:00 - 17:00 2.00 BOPSUR P PRE REMOVE TREE CAP. NU BOPS. CONTINUE TO SPOT AND STAGE EQUIPMENT. 17:00 - 18:00 1.00 BOPSUR P PRE HOLD PJSM. LIFT REEL FROM FLAT BED IN TO REEL HOUSE. CONDUCT AAR FOR REEL INSTALL. GOOD COMMUNICATION, LOCATION SECURE PRIOR TO LIFT. 18:00 18:30 0.50 BOPSUR P PRE CREW C/O. DISCUSS ONGOING RIG OPS. CHECK EQUIPMENT STATUS. 18:30 - 20:00 1.50 BOPSUR P PRE PJSM.INSTALL HARDLINE IN REEL. SECURE CELLAR-BERM AROUND CELLAR. SPOT SUPPORT EQUIPMENT AROUND RIG. LOAD PITS WITH 580 BBLS 8.4 PPG 2%KCL. 20:00 - 20:30 0.50 BOPSUB P PRE PJSM WITH SCAFFOLD CREW,REMOVE SCAFFOLD AROUND MGS AND LOAD OUT. 20:30 - 22:15 1.75 BOPSUR P PRE PJSM WITH HARDLINE CREW,R/U HARDLINE TO TIGER TANK. PRESSURE TEST HARDLINE TO 4000 PSI WITH DIESEL. PJSM WITH GREASE CREW-SERVICED TREE VALVES. OPEN SSV AND INSTALL FUSABLE CAP. 22:15 - 22:30 0.25 BOPSUR P t PRE PJSM,FUNCTION TEST BOPE FROM ALL STATIONS. Printed 2/6/2012 8:10:35AM North America -ALASKA- BP Page 2 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 BOPSUR P PRE PJSM,REVIEW SOP FOR TESTING BOPE. AOGCC INSPECTOR BOB NOBLE WAIVED WITNESS FOR BOP TEST. TOUR PUSHER AND WSL WITNESS BOP TEST. WITH MASTER AND SWAB VALVE CLOSED- SHELL TEST BOPE TO 250/3500 PSI. TESTING BLIND SHEAR RAMS- TROUBLESHOOT PRESSURE BLEED OFF. 12/23/2011 00:00 - 01:30 1.50 . BOPSUR N RREP PRE TROUBLESHOOT PRESSURE BLEED OFF ON BLIND SHEAR RAMS. PJSM, LOTO KOOMEY.OPEN BOP AND INSPECT BLIND SHEAR RAM. FOUND CUT BLADE SEAL. C/O BLADE SEAL, RE-INTALL RAM. ,01:30 - 05:30 4.00 BOPSUR P PRE CONTINUE WITH BOPE TEST. SHELL TEST BOPE TO 250/4500 PSI. RE-TEST BLIND SHEAR RAMS. CONTINUE TESTING BOPE COMPONENTS, CHOKE MANIFOLD,SAFETY VALVES TO 250/3500 PSI FOR 5 MIN EACH. TLAR5AD 2500 PSI 5 MINEST EACH. CHARTTO2RECORD0N TESTS. PERFORM ACCUMULATOR DRAWDOWN TEST. 05:30 - 06:00 0.50 BOPSUR P PRE CONDUCT RIG EVACUATION DRILL. HOLD AAR.DISCUSS KNOWING PAD OPERATOR C/O TIME. WIND DIRECTION.ALWAYS LOOK AT THE WIND SOCK EVACUATE UP-WIND. 06.00 - 06:30 0.50 BOPSUR P PRE CREW CHANGE. DISCUSS CURRENT OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. 06:30 - 09:15 2.75 RIGU P PRE PREP TO CIRCULATE REEL WITH MEOH AND KCL WATER. RU TUGGER. PULL AND STAB COIL INTO INJECTOR. RD. 09:15 - 09:45 0.50 RIGU P PRE HOLD RIG EVACUATION DRILL. MUSTER TO SAT CAMP WITH 5 SCBA'S AAR: FUELER MUSTERED TO MAN CAMP. TWO HANDS DID NOT RECOGNIZE ALARM TYPE. ADDITIONAL DISCUSSION. 09:45 - 12:00 2.25 RIGU P PRE PREP AND MU CONNECTOR ON COIL. 12:00 - 15:00 3.00 RIGU P PRE FILL REEL WITH 5 BBL MEOH AND 2%KCL WATER AT 1.0 BPM AT 200-350 PSI. MAKE 2ND CIRCULATION AT 3.0 BPM. 15:00 - 15:30 0.50 BOPSUR P PRE PRESSURE TEST INNER REEL VALVE AND PACKOFFS. 250 PSI AND 5000 PSI.CHART SAME. 15:30 - 16:00 0.50 BOPSUR P PRE MU AND PT INTEQ CHECK VALVES. 16:00 - 18:00 2.00 BOPSUR P PRE PU DSM LUBRICATOR.TO RIG FLOOR. HOLD PJSM. RU LUBRICATOR. PT SAME AND CHART. 18:00 - 18:30 0.50 BOPSUR P PRE CREW C/O.DISCUSS ONGOING RIG OPS. CHECK EQUIPMENT STATUS. Printed 2/6/2012 8:10:35AM North America -ALASKA- BP Page 3 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:30 - 19:30 1.00 BOPSUR P PRE PJSM WITH DSM. CONTINUE TO TEST LUBRICATOR AGAINST MASTER VALVE AND SSV TO- 250/3500 PSI.CHART RECORD TEST. OPEN SSV AND MASTER. PULL TWC VALVE. WHP=575 PSI. NOTIFY WTL AND FIELD SUPERINTENDANT. DISCUSS PLAN FORWARD FOR WELL KILL- DUE TO NO INJECTIVITY RATE. 19:30 - 23:00 3.50 BOPSUR P PRE CLOSE SSV AND MASTER VALVE. PRESSURE TEST AGAINST MASTER VALVE AND SSV 250/3500 PSI. R/D LUBRICATOR AND TOOLS. CLOSE SWAB VALVE,OPEN SSV. INSTALL FUSABLE CAP. 23:00 - 23:15 0.25 BOPSUR P t PRE PJSM FOR M/U NOZZLE BHA,REVIEW PLAN FORWARD FOR RIH TO KILL WELL. DISCUSS ROLES, FLUID iAND TANK MONITORING. 23:15 - 00:00 0.75 BOPSUR P PRE PUMP 5 BBLS 50/50 METHONAL IN COIL. M/U BHA#1,3"NOZZLE,5'STINGER,XO,3" LQC BLIND, UQC,XO, CTC. M/U INJECTOR.TEST QTS. EQUALIZE TO WHP AT 575 PSI. WITH CHOKE SHUT IN.OPEN SWAB AND MASTER VALVE. PVT=448 BBLS. 12/24/2011 00:00 - 04:20 4.33 BOPSUR P PRE RIH WITH BHA#1,90 FPM, PUMPING.15 BPM HOLDING 900 PSI BACK PRESSURE WITH HAND CHOKE. TAKING RETURNS TROUGH OUT MM TO TIGER TANK. 1SLIGHT GAS RETURNS BUT FADED. STOP EVERY 1000', SHUT IN CHOKE WITH PUMP OFF AND- I STRAP TIGER TANK VOLUME TO ENSURE CORRECT COIL DISPLACEMENT. AT 15,000'P/U WT= 53K. S/O WT= 16K. RIH TO 15,650'. 04:20 - 06:00 1.67 BOPSUR P PRE DISPLACE WELL TO 8.4 PPG 2%KCL, KILL WELL. HOLD 850 PSI BACK PRESSURE WITH HAND CHOKE- TAKING RETURNS THROUGH OUT MM TO TIGER TANK. WITH 130 BBLS PUMPED- OUT MICRO MOTION ACTING ERRATIC AND FINALLY FAILING. MONITOR TIGER TANK. NOTIFY FIELD SUPERINTENDANT- APPROVAL TO CONTINUE WITH DISPLACEMENT. PUMP 165 BBLS. BLEED OFF PRESSURE. SHUT IN CHOKE MONITOR FOR WHP. 25 PSI. CLEAR OUT MICRO MOTION,OPERATIONAL. Printed 2/6/2012 8:10:35AM Vorth America-ALASKA- BP Page 4 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To HrsTask Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 06:40 0.67 BOPSUR P PRE CREW CIO DISCUSS.OPERATIONS.CHECK RIG EQUIPMENT. CONTINUE DISPLACING WELL TAKING RETURNS TO TT. HOLDING 800 PSI WHP WITH HAND CHOKE. PUMP 237 BBLS TOTAL. SHUT DOWN PUMP. BLOW DOWN FLOWBACK LINE. 06:40 - 06:55 0.25 BOPSUR P PRE FLOWCHECK WELL FOR 15 MIN.STATIC. 06:55 - 10:30 3.58 BOPSUR P PRE POH WITH NOZZLE BHA. MONITOR HOLE FILL AND FLUID RTNS. LIMIT PULLING SPPED. HOLD PJSM TO DISCUSS IMPORTANCE OF MONITORING HOLE FILL. .HOLD PJSM TO DISCUSS FLOW CHECK BHA, AND HANDLING INJECTOR WHEN NEAR SURFACE. 10:30 - 11:00 0.50 BOPSUR P PRE FLOW CHECK WELL. HOLE STABLE. 11:00 - 12:00 1.00 STWHIP P WEXIT GET OFF WELL. UNSTAB COIL.LD NOZZLE BHA. 12:00 - 16:00 4.00 STWHIP P WEXIT RU TO PUMP SLACK FORWARD. CIRC AT 3.1 BPM AT 3950 PSI. GET 36'FROM REEL. MAKE SEVERAL ATTEMPTS WITH 2%KCL LOAD PIT 5 WITH FRESH WATER FOR A SECOND TRY. 3.2 BPM AT 4150 PSI. NO IMPROVEMENT. ADD MI POLYMER TO 2%KCL TO GO FOR MORE PUMP RATE. 3.8 BPM AT 4000 PSI. PUMP 490'OF E-LINE FROM REEL. 16:00 - 18:00 2.00 STWHIP P WEXIT RU TO CIRCULATE 3/4"BALL THROUGH REEL. PULL AND PRESSURE TEST COIL CONNECTOR. LOCATE BALL DROP POSITION. 18:00 - 18:30 0.50 STWHIP P WEXIT CREW C/O,DISCUSS CURRENT RIG OPS. CHECK RIG EQUIPMENT AND RESUME L ONGOING FLUID TRANSFERS. 18:30 - 21:15 2.75 STWHIP P WEXIT PUMP 3/4"STEEL BALL AROUND TO DRIFT COIL.PUMPING 2.7 BPM. NO BALL AFTER PUMPING 177 BBLS.SURGE COIL SEVERAL TIMES. PUMP ANOTHER VOLUME. NO BALL HEARD. CHECK TREATING IRON. NO BALL FOUND. ROCK REEL BACK AND FORTH, HEAR BALL MOVING. PUMP AROUND. BALL FOUND WEDGED BETWEEN CTC AND E-LINE BOOT. WOULD NOT PASS THROUGH CTC. DECISION MADE TO CUT 1'FT OF COIL AND RE-HEAD. CUT COIL, M/U BTT CTC. PULL TEST TO 37K. PT 4000 PSI. 21:15 - 22:30 1.25 STWHIP P WEXIT PJSM, MIU BHA#2. 3.80"PDC BIT,3 1/8"ULTRA XL MTR,XO, DUAL ACT CIRC SUB, HI-LOAD DISC, BOWEN JARS, DBPV,XO,4 JTS 2 3/8"PH6,XO,CTC. M/U INJECTOR.TEST QTS. Printed 2/6/2012 8.10:35AM • forth America-ALASKA- BP Page 5 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-OOXXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12©91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 STWHIP P WEXIT RIH 75 FPM PUMPING.5 BPM 250 PSI. START 8.6 PPG POWER VIS MUD DOWNHOLE. • 12/25/2011 00:00 - 01:25 1.42 ZONISO P OTHCMP RIH WITH BHA#2 90 FPM PUMPING 1.5 BPM 1600 PSI PUMPING 8.6 PPG POWER VIS MUD DOWN COIL. 15000'P/U WT 52K. TAG AT 15415' PULL 10K OVER TO PULL OUT. 01:25 - 06:00 4.58 ZONISO P OTHCMP REAM AND CLEAN UP FROM 15,415' PUMPING 2.8 BPM 3200 PSI.200/300 PSI I MOTORWORK. HARDER DRILLING FROM 15,580', ROP=40/50 FPH. 8.6 PPG POWER VIS AT SURFACE @ 250 BBLS. LOAD PITS WITH REMAINING MUD FROM TRUCKS. 15600'PUMP 10 BBL HI VIS SWEEP. DRILLING TO 15,720' PVT=308 BBLS. 06:00 - 06:30 0.50 ZONISO P OTHCMP CREW CHANGE. DISCUSS OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO DRILL CEMENT. 06:30 - 09:30 3.00 ZONISO P OTHCMP DRILL CEMENT FROM 15720'. 3600 PSI FS AT 3.12 BPM IN/OUT. 100 PSI MTR WORK. IA/OA/PVT: 12 PSI/24 PSI/279 BBLS. DRILL TO 16,250'. 09:30 - 10:00 0.50 ZONISO P OTHCMP WIPER TRIP TO 15,400'. 3538 PSI @ 3.16 BPM IN. ------------------ 10:00 - 13:00 3.00 ZONISO P OTHCMP DRILL CEMENT FROM 16,250 TO 16400'. 3691 PSI AT 3.18 BPM IN. 13:00 - 16:00 3.00 ZONISO P OTHCMP 'WIPER TRIP TO 13,000'. 3680 PSI AT 3.17 BPM. PVT:402 BBLS. 16:00 - 18:00 2.00 ZONISO P OTHCMP DRILL CEMENT FROM 16,400'TO 16,500' 3598 PSI F AT 3.12 BPM IN/OUT. 18:00 - 18:30 0.50 ZONISO P OTHCMP 'CREW CHANGE,NEW CREW FROM DAYS OFF. DISCUSS PAST AND PRESENT OPS FOR W-12. MAKE EQUIPMENT CHECKS. • START WIPER TRIP. 18:30 - 19:00 0.50 ZONISO P OTHCMP CONTINUE WIPER TRIP TO 15,400' 3655 PSI AT 3.12 BPM 19:00 - 20:00 1.00 ZONISO P OTHCMP DRILL CEMENT FROM 16,500'TO 16,600' PUMP 10 BBL HI VIS SWEEP PUMPING 3.12 BPM F/S=3650 PSI.350 PSI MOTOR WORK. PVT=499 BBLS. I/A=340 PSI.O/A=24 PSI. WHP=66 PSI. 20:00 - 21:00 1.00 ZONISO P OTHCMP WIPER TRIP TO 15,400'. PUMPING 3.09 BPM AT 3550 PSI. 21:00 - 22:00 1.00 ZONISO P OTHCMP DRILL CEMENT FROM 16,600'TO 16,700' PUMPING 3.1 BPM 3950 PSI. PUMP 10 BBL HI VIS SWEEP. 22:00 - 00:00 2.00 ZONISO P OTHCMP WIPER TRIP TO 13,000' PUMPING 3 BPM AT 3600 PSI. 12/26/2011 00:00 - 01:00 1.00 ZONISO P OTHCMP FINISH WIPER TRIP FROM 16,700'TO 13,000' Printed 2/6/2012 8:10:35AM forth America-ALASKA- BP Page 6 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12.00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To I Hrs Task I Code NPT NPT Depth Phase Description of Operations (hr) _ (ft) 01:00 - 02:00 1.00 ZONISO P OTHCMP DRILLING CEMENT FROM 16,700'TO 16,800' PUMP 10 BBL HI VIS SWEEP PUMPING 3.03 AT 4000 PSI. PVT=439 BBLS. I/A=403 PSI.O/A=24 PSI. WHP=77 PSI. 02:00 - 03:20 1.33 ZONISO P OTHCMP WIPER TRIP TO 15,400'. PUMPING 3 BPM AT 3600 PSI. 03:20 - 04:50 1.50 ZONISO P OTHCMP DRILLING CEMENT FROM 16,800'TO 16,900' PUMPING 2.95 BPM AT 3900 PSI. PUMP 10 BBL HI VIS SWEEP. 04:50 - 06:00 1.17 ZONISO P OTHCMP WIPER TO 15,400' PUMPING 2.93 BPM WITH 3700 PSL 06:00 - 06:30 0.50 ZONISO P OTHCMP CREW CHANGE. DISCUSS OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO CHANGE HIGH PRESSURE FILTER. 06:30 - 07:30 1.00 ZONISO r P OTHCMP COMPLETE CLEANING HIGH PRESSURE FILTER. CHANGE SCREENS ON SHAKER. I - CONTINUE TO RIH. 07:30 - 09:30 2.00 ZONISO P OTHCMP DRILL CEMENT FROM 16,900 TO 16,955'. STALL AT 16,955'. PUMP POP OFF TRIPPED. 09:30 - 10:30 1.00 ZONISO P OTHCMP WIPER TRIP WHILE RESETTING PUMP#2 POP OFF. 10:30 - 13:30 3.00 ZONISO P OTHCMP ATTEMPT TO RESUME MILLING. REPEAT STALLS AT 16,955'. WORK BHA SEVERAL TIMES DRILL TO 16958' 3640 PSI FS AT 2.76 BPM IN/OUT. UNABLE TO MAKE ANY PROGRESS. 13:30 - 18:00 4.50 ZONISO P OTHCMP HOLD TRIP MANAGEMENT PJSM. CIRCULATE OUT OF HOLE. 18.00 - 18:15 0.25 ZONISO P OTHCMP CREW CHANGE. DISCUSS ONGOING RIG OPS. CHECK RIG EQUIPMENT. 18:15 - 18:30 0.25 ZONISO P OTHCMP PERFORM 500'JOG AT SURFACE. 18:30 - 18:40 0.17 ZONISO P OTHCMP FLOW CHECK WELL-STATIC. PJSM FOR BHA. 18:40 - 19:30 0.83 ZONISO P OTHCMP SET BACK INJECTOR, UD BHA#2. 19:30 - 20:00 0.50 ZONISO C OTHCMP INSPECT BHA, PDC BIT GRADE= 6/2/BT/ NS/X/I/CT/PR. NOTIFY ODE,DECISION MADE TO RUN JUNK MILL. 20:00 - 21:00 1.00 ZONISO C OTHCMP M/U BHA #3, 3.80"3-BLADE JUNK MILL, RE-RUN 3 1/8"ULTRA XL MTR,XO, DUAL ACT CIRC SUB, HI-LOAD DISC, BOWEN JARS, DBPV,XO,4 JTS 2 3/8"PH6,XO,CTC. M/U INJECTOR.TEST QTS. 21:00 - 00:00 3.00 ZONISO C OTHCMP RIH WITH BHA#3, RIH 80 FPM. PUMPING.26 BPM 1450 PSI. PJSM, PREP MUD PITS FOR NEW 8.63 PPG POWER VIS MUD. START FLUID TRANSFERS FROM INACTIVE PITS. 15,600 P/U WT 42K. INCREASE PUMP TO 2.9 BPM WITH 3700 PSI. '40 FPM. Printed 2/6/2012 8:10:35AM Vorth America -ALASKA- BP Page 7 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/27/2011 00:00 - 00:40 0.67 ZONISO P OTHCMP RIH WITH BHA#3 PUMPING NEW 8.6 PPG POWER VIS DH. PUMP AT 2.9 BPM WITH 3700 PSI. TAG BOTTOM AT 16,977 CTB MD. 00:40 - 04:00 3.33 ZONISO P OTHCMP MILL CEMENT AND POSSIBLE JUNK FROM 16,977'TO 17,013' TO NO PENETRATION RATE. PUMPING 3 BPM WITH 3650 PSI. COMPLETE MUD SWAP.PVT=257 BBLS. 04:00 - 04:15 0.25 ZONISO P OTHCMP P/U OFF BOTTOM. RECORD SPR 1 AND2 MP. FLOWCHECK WELL. STATIC. 04:15 - 06:00 1.75 ZONISO P OTHCMP POH WITH BHA#3 PUMPING 2.97 BPM WITH 3100 PSI. 06:00 - 06:30 0.50 ZONISO P OTHCMP CREW CHANGE. DISCUSS CURRENT OPS AND RIG STATUS. MAKE RIG CHECKS AND ROUNDS. CONTINUE TO CIRCULATE OUT OF HOLE. 06:30 - 07:30 1.00 ZONISO P OTHCMP CONTINUE TO PULL OUT OF HOLE. JOG I N HOLE TO CLEAR CUTTINGS. TAG UP. 07:30 - 08:15 0.75 ZONISO P OTHCMP FLOW CHECK. GET OFF WELL. UNSTAB COIL. STAND BACK/ LD BHA COMPONENTS. MILL SHOWS WEAR FROM CEMENT AND IS NOT JUNK DAMAGED. 08:15 - 09:30 1.25 ZONISO P OTHCMP MU MILLING BHA WITH TO MAX ANTI STALL TOOL AND REBUILD 3.8"HYCALOG PDC BIT. STAB COIL. GET ON WELL. f _ PT QTS. RECORD SAME. 09:30 - 12:30 3.00 ZONISO P OTHCMP RUN IN HOLE. 14K#DN WT 41K#UPWTAT17,000'. 12:30 - 14:00 1.50 ZONISO P OTHCMP DRILL AHEAD FROM 17,005'. (UNCORRECTED) I 3204 PSI FS AT 3.03 BPM IN/OUT. DRILL TO 17,112'. 14:00 - 15:00 : 1.00 ZONISO P OTHCMP WIPER TRIP TO 16,500'. 3200 PSI AT 3.01 BPM IN. PVT:421 BBLS. 15:00 - 16:15 1.25 ZONISO P OTHCMP DRILLED TO 17,200' 16:15 - 17:00 0.75 ZONISO P OTHCMP WIPER TRIP 16000' 17:00 - 18:45 1.75 ZONISO P OTHCMP DRILLED AHEAD TO 17296' 18:45 - 20:00 1.25 ZONISO P OTHCMP WIPER TRIP TO 16000' 20:00 - 20:45 0.75 ZONISO P OTHCMP DRILLED AHEAD TO 17400' 3550 PSI AT 3.10 BPM PVT OF 431 BBLS. 20:45 - 00:00 3.25 ZONISO P OTHCMP WIPER TRIP TO 1300' 20K OVERPULL OFF BOTTOM. NOTHING ELSE NOTED DURING WIPER TRIP. 12/28/2011 00:00 - 00:45 0.75 ZONISO P OTHCMP FINISH WIPER TO 13000' 00:45 - 02:15 1.50 ZONISO P OTHCMP DRILLED AHEAD TO 175751' 3739 PSI AT 3.13 BPM PVT OF 420 BBLS. 02:15 - 02:45 0.50 ZONISO P OTHCMP WIPER TO 16,000' 02:45 - 03:45 1.00 ZONISO P OTHCMP DRILLED AHEAD TO 17605' 3746 PSI AT 2.98 BPM PVT OF 420 BBLS. 03:45 - 04:45 I 1.00 ZONISO P OTHCMP WIPER TO 16,000' 04:45 - 05:45 1.00 ZONISO P OTHCMP DRILL AHEAD TO 17672 3823 PSI AT 3.02 BPM AND PVT OF 401 BBLS. 05:45 - 06:00 0.25 ZONISO P OTHCMP WIPER TO 16000'WHILE CHANGING OUT. Printed 2/6/2012 8:10:35AM Vorth America -ALASKA- BP Page 8 of 291 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 06:30 0.50 ZONISO P OTHCMP CREW CHANGE. REVIEW CURRENT OPS AND RIG STATUS. MAKE INSIDE AND OUTSIDE ROUNDS. CONTINUE WIPER TRIP. 06:30 - 07:30 1.00 ZONISO P OTHCMP CIRCULATE BACK IN HOLE. 3409 PSI AT 3.00 BPM. PVT:403 BBLS. IA/OA:443 PSI/161 PSI. -DRILL TO 17680'. UNABLE TO MAKE ADDITIONAL PROGRESS DUE TO WT TRANSFER UNABLE TO KEEP COIL SLIDING TO MAINTAIN MOTOR WORK. 07:30 - 11:00 I 3.50 ZONISO P OTHCMP MAKE WIPER TRIP TO 13,000'. 3305 PSI FS AT 3.05 BPM. 40 FPM UP,50 FPM DN RNG SPEED. 11:00 - 13:30 2.50 ZONISO P OTHCMP DRILL CEMENT FROM 17,680'. 3410 PSI FS AT 2.99 BPM IN/OUT. 300-400 PSI MOTOR WORK. DRILL TO 17,758'. UNABLE TO KEEP COIL SLIDING WITH MOTOR WORK. DRILL TO 17844'. AOGCC GIVEN 24 HR UPDATE OF BOPE i TEST. BOB NOBLE WAIVED WITNESS BUT ZONISO P OTHCMP WANTS A 2 HR UPDATE. 13:30 - 14:30 1.00 --- WIPER TRIP. 1000'. 3450 PSI AT 3.01 BPM. 14:30 - 16:00 i 1.50 ZONISO P OTHCMP DRILL CEMENT FROM 17,844'. 3510 PSI FS AT 3.05 BPM IN/OUT. DRILL TO 18,000'. 16:00 - 17:15 1.25 ZONISO P OTHCMP WIPER TRIP. 1000'. 3702 PSI AT 3.04 BPM IN. 17:15 - 19:30 2.25 ZONISO P OTHCMP DRILL CEMENT FROM 18,000'. 3740 PSI FS AT 3.05 BPM IN/OUT. 400 PSI MTR WORK. 19:30 - 20:00 0.50 ZONISO P OTHCMP WIPER TRIP. 1000'3700 PSI AT 3.04 BPM 20:00 - 20:45 0.75 ZONISO P OTHCMP DRILL CEMENT FROM 18150' 3937 PSI AT 3.15 BPM 20:45 - 00:00 3.25 ZONISO P OTHCMP WIPER TRIP TO 13,000' 3593 PSI AT 3.11 BPM 12/29/2011 00:00 - 01:30 1.50 ZONISO P OTHCMP CONTINUE WITH WIPER TO 13000' OBTAIN SPR'S PUMP#1 -0.5 BPM AT 1675 PSI,AND 1.0 BPM AT 1996 PSI, PUMP#2-0.5 BPM AT 1670 PSI,AND 1.0 BPM AT 2000 PSI. 01:30 - 04:30 3.00 ZONISO P OTHCMP DRILL AHEAD FROM 18,179'to 18,217' 3893 PSI AT 3.10 BPM 800 PSI MOTOR WORK. 375 BBLS PVT. DRILLING IS SLOW AT-22'PER HOUR. 04:30 - 06:00 1.50 ZONISO P OTHCMP POOH FOR AGITATOR AND BOPE TEST. 3450 PSI AT 3.15 BPM. 06:00 06:30 0.50 ZONISO P OTHCMP CREW CHANGE. DISCUSS CURRENT OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND ALL ROUNDS. CONTINUE TO CIRCULATE OUT OF HOLE. 06:30 09:00 2.50 ZONISO P OTHCMP CIRCULATE OUT OF HOLE. 3380 PSI AT 3.13 BPM IN AT 9600' HOLD PJSM TO DISCUSS GETTING OFF WELL. Printed 2/6/2012 8:10:35AM Borth America -ALASKA- BP Page 9 of 29 • Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 09:30 0.50 ZONISO P OTHCMP JOG IN HOLE 300'. OBSERVE INCREASE IN CUTTINGS. FLOW CHECK. 09:30 - 10:00 0.50 ZONISO P OTHCMP GET OFF WELL. UNSTAB COIL. LD BHA TOOLS. BIT HAD DAMAGE TO GAUGE CUTTERS. 1-3-I. CIRC SUB HAD SHEARED OPEN. LIKELY CAUSE FOR REDUCED ROP. 10:00 - 15:00 5.00 BOPSUR P OTHCMP PERFORM WEEKLY PRESSURE TEST OF BOPE. TEST WITNESS WAIVED BY J.CRISP WITH AOGCC. TEST GAS ALARMS. CLOSE AND TEST MASTER AND SWAB. OPEN ALL RAM CAVITIES. CLEAN AND INSPECT. A LOT OF METAL FILINGS FOUND IN CAVITIES. 15:00 - 22:00 7.00 BOPSUR P OTHCMP CONTINUE PRESSURE TESTING BOPE. TEST ALL BOPE EQUIPMENT TO AOGCC AND BP STANDARDS. BOB NOBLE WAIVED WITNESS FOR AOGCC. TEST WITNESSED BY BP WSL AND NORDIC TOOL PUSHER. 22:00 - 00:00 2.00 ZONISO P OTHCMP MAKE UP BHA I i TEST ANTI STALL TOOL TO 1700 PSI AD 75 FT/LBS TQ TO ACTIVATE 1 CM. STAB INJECTOR AND TEST QTS. 12/30/2011 00.00 - 06:00 6.00 ZONISO P OTHCMP RIH WITH DRILLING BHA. TEST ER TOOL WITH 3 BPM AND SLIGHT VIBRATION AT INJECTOR. 100'PER MIN.RATE OF.44 BPM AND 1201 PSI. TAG UP AT 17803',17831',17875' AND WORK THRU. 06:00 - 06:30 0.50 ZONISO P OTHCMP CREW CHANGE DISCUSS CURRENT OPS AND RIG STATUS. MAKE ROUNDS INSIDE AND OUTSIDE. CONTINUE TO WORK TO BTM. 06:30 - 08:00 1.50 ZONISO P OTHCMP CONTINUE TO WORK TO BTM. 3210 PSI FS AT 2.60 BPM IN. UNABLE TO WORK PAST 18,026' REPEATED STALLING. NO OVERPULLS NOTES. STALL PRESSURE INDICATES MOTOR IS STRONG. COIL LIFE BECOMMING A FACTOR. 08:00 - 12:00 4.00 ZONISO P OTHCMP CIRCULATE OUT OF HOLE TO CHECK BHA COMPONENTS. 12:00 - 13:00 1.00 ZONISO P OTHCMP AT SURFACE. FLOW CHECK WELL. GET OFF WELL. UNSTAB COIL. LD BHA. BIT GREEN.ALL OTHER COMPONENTS APPEAR OK. 13:00 - 14:30 1.50 ZONISO P OTHCMP DISUSS WITH TOWN. MU 3.75"HYCALOG BIT WITH NEW 2-7/8" XTREME MTR. REMOVE ER TOOL AND TOMAX ANTI STALL TOOLS. STAB COIL. GET ON WELL. 14:30 - 19:00 4.50 ZONISO P OTHCMP RUN IN HOLE TO 18212'NO PROBLEMS. OBTAIN SPRS OF#1 -1.5 BPM AT 2235 PSI, 0.5 BPM AT 1510 PSI,#2-1.5 BPM AT 2186 PSI,0.5 BPM AT 1511 PSI. Printed 2/6/2012 8:10:35AM North America -ALASKA- BP Page 10 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 22:00 3.00 ZONISO P OTHCMP DRILL AHEAD RATE 2.59 BPM AT 3406 PSI. PVT OF 409 BBLS.AVERAGE—30 FT/HR 21:30 HRS AT 18287'RATE OF 2.63 BPM AT 3490 PSI. 22:00 - 22:30 0.50 ZONISO P OTHCMP [WIPER TRIP 1000' 22:30 - 00:00 1.50 ZONISO P OTHCMP DRILL AHEAD AT 2.5 BPM AND 3930 PSI. 12/31/2011 00:00 - 00:45 0.75 ZONISO P OTHCMP DRILL AHEAD TO 18328'2.5 BPM AT 3930 PSI. 00:45 - 03:00 2.25 ZONISO N STUC 18,328.00 OTHCMP WHEN P/U OFF BOTTOM PULLED 92K WORK PIPE AND SPOKE WITH ODE MATT ROSS. NOTIFIED DAY WSL.WORK PIPE AND BUILD SWEEP.NOTIFY DRILLING SUPERINTENDANT RICH BURNETT.MIX LOW VIS FOLLOWED BY HI-VIS SWEEP.PUMP AROUND AND WORK PIPE AS SWEEPS PASS BIT—NO SUCCESS. 03:00 - 06:00 3.00 ZONISO N STUC 18,328.00 OTHCMP APPLY 500 PSI TO BACK SIDE AND WORK PIPE TO 80K DUMPING PSI. NO SUCCESS, PSI BACK UP TO 500.SLACK OFF PIPE AS DUMPING PSI. P/U TO 85K NO SUCCESS. PSI BACK UP TO 500 PSI. DUMPING PSI AS P/U PIPE P/U TO 90K NO SUCCESS. I I 'PRESSURE UP TO 1000 PSI ON BACK SIDE AND REPEAT THE ABOVE WITH NO fi SUCCESS. PRESSURE UP TO 1578 PSI ATTEMPTING TO GO TO 2000 PSI AND CLOSED CHOKE INJECTING MUD AT 1.88 BPM.SHUT DOWN PUMPS AND SLOWLY BLEED PRESSURE DOWN TO 0 PSI RELAXING WELL. P/U PIPE TO 86K NO SUCCESS. DISCUSSION WITH RICH BURNETT THROUGHOUT OPERATIONS. BRING PUMPS BACK ONLINE AT 1.68 BPM AND 2732 PSI WITH A0.10 BPM LOSS RATE. MIXING 30 BBLS LUBE PILL. 3 DRUMS LUBE TO 30 BBLS 06:00 - 07:15 1.25 ZONISO N STUC 18,328.00 OTHCMP PUMP 10 BBLS LOW VIS FOLLOWED BY 40 BBLS HI-VIS WITH 3 DRUMS OF 776 MIXED IN. PUMP 5 BBLS OF SLICK PILL OUT OF BIT AND SOAK FOR 15 MIN THEN PUMPING 2 TO 3 MORE BBLS AND WAITING UNTIL ALL PILL IS OUT OF BIT. WITH 10 BBLS LEFT IN COIL,CAME FREE. 07:15 - 11:15 4.00 ZONISO P OTHCMP CIRCULATE OUT OF HOLE. HOLD PJSM. FLOW CHECK AT SURFACE. 11:15 - 13:15 2.00 ZONISO P OTHCMP GET OFF WELL. UNSTAB COIL. LD BHA. BIT 1-1. MU DRILLING BHA WITH AGITATOR AND PORTED SUB. RE-RUN 2-7/8"XTREM MTR AND 3.75"HYCALOG BIT. STAB COIL. GET ON WELL. PT QUICK CONNECT SUB. FLOW TEST AGITATOR. 13:15 - 17:30 4.25 ZONISO P OTHCMP RUN IN HOLE. 17:30 - 18:00 0.50 ZONISO P OTHCMP OBTAIN PARAMETERS 35k#UP,16k#DN WT AT 18,000'. CONTINUE TO RIH TO 18332' Printed 2/6/2012 8:10:35AM North America-ALASKA- BP Page 11 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:00 - 00:00 6.00 ZONISO P OTHCMP DRILL AHEAD AT 18332' PUMP RATE AT 2.78 BPM WITH 4211 PSI PVT OF 380 BBLS. 21.00 HRS-18398' RATE OF 2"79 BPM WITH 4076 PSI PVT OF 386 BBLS 23:00 HRS-18,453'RATE OF 2.81 BPM WITH 4200 PSI PVT OF 378 BBLS 00.00 HRS- 18,485'RATE OF 2 77 BPM AND 4120 PSI. PVT OF 375 BBLS. 1/1/2012 00:00 - 00:30 0.50 ZONISO P OTHCMP DRILL AHEAD AT 18485'TO 18,500' PUMP RATE AT 2.77 BPM WITH 4120 PSI PVT OF 375 BBLS. _ 00:30 - 01:45 1.25 ZONISO P OTHCMP WIPER TRIP TO 17,500' RATE OF 2.74 BPM WITH 3860 PSI SAND SEEN ON SHAKERS AFTER WIPER TRIP BOTTOMS UP WHILE RIH STARTED SEEING LOSSES OF AROUND 0.6 BPM. 01:45 - 05:30 3.75 ZONISO . P OTHCMP DRILL AHEAD AT 18,500'TO 18,675' PUMP RATE AT 2.77 BPM WITH 4156 PSI. PVT OF 354 BBLS. LOSS RATE OF 0.5 BPM DROPPING TO 0.1 BPM WHILE DRILLING. 0300 HRS-18,547'RATE OF 2.73 BPM WITH 4150 PSI. PVT OF 342 BBLS. NO LOSSES. 0400 HRS- 18,600'RATE OF 2.75 BPM WITH • 4263 PSI PVT OF 342 BBLS. 0500 HRS-18,650' RATE OF 2.74 BPM WITH 4230 PSI PVT OF 338 BBLS. 05:30 - 06:00 0.50 ZONISO P OTHCMP WIPER TRIP TO 17,675' RATE OF 2.72 BPM WITH 3970 PSI. 06:00 - 06:30 0.50 ZONISO P OTHCMP CREW CHANGE. DISCUSS CURRENT OPS AND RIG STATUS. MAKE INSIDE AND OUTSIDE ROUNDS. CONTINUE WIPER TRIP FROM 13,000'. 06:30 - 07:30 1.00 ZONISO P OTHCMP WIPER TRIP TO BOTTOM. 3955 PSI AT 2.63 BPM IN. 40 K#UP,15K#DN WT. 07:30 - 12:00 4.50 ZONISO P OTHCMP DRILL AHEAD FROM 18,675'. 3820 PSI FS AT 2.53 BPM IN/OUT. 200-300 PSI MTR WORK. IA/OA/PVT:438 PSI/127 PSI/318 BBLS. SLIGHT MUD LOSSES DURING TRIPS. UNABLE TO MAKE ANY ADDITIONAL FOOTAGE AT 18,794'. MOTOR WORK,WEIGHT TO BIT,WILL NOT DRILL OFF. 12:00 - 17:00 5.00 ZONISO P OTHCMP CIRCULATE OUT OF HOLE. 3585 PSI AT2.75BPM IN. 17:00 - 19:00 2.00 ZONISO P OTHCMP AT SURFACE_ GET OFF WELL. LD BHA.FLOW SUB WASHED OUT. BIT HAD SEVERAL BROKEN CUTTERS. 2-6-i. M/U NEW BHA 19:00 - 19:45 0.75 ZONISO P OTHCMP N/U INJECTOR HEAD TEST QTS TO 3500 PSI. Printed 2/6/2012 8:10:35AM 4orth America-ALASKA- BP Page 12 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:45 - 00:00 4.25 ZONISO P OTHCMP RIH TO 18,155' 0.33 BPM WITH 1809 PSI. 1/2/2012 00:00 - 00:30 0.50 ZONISO P OTHCMP RIH FROM 18,155'TO 18,798' RATE OF 2.29 BPM AT 4025 PSI. OBTAIN SPRS#1-0 5 BPM AT 2200 PSI,1-0 BPM AT 2575 PSI,#2-0.5 BPM AT 2150 PSI AND 1 0 BPM AT 2607 PSI. 00:30 - 06:00 5.50 ZONISO P OTHCMP DRILL AHEAD FROM 18,798' RATE OF 2.31 BPM AT 4160 PSI PVT OF 293 BBLS 0230-18.845' RATE OF 2.35 BPM AT 4222 PSI PVT OF 287 BBLS 0330-18.875' RATE OF 2.39 BPM AT 4400 PSI PVT OF 282 BBLS 0445-18.894' RATE OF 2.27 BPM AT 3832 OFF BOTTOM 06:00 - 06:30 0.50 ZONISO P OTHCMP CREW CHANGE. DISCUSS OPERATIONS AND RIG STATUS. MAKE INSIDE AND OUTSIDE ROUNDS. CONTINUE 500'WIPER. 06:30 - 07:00 0.50 ZONISO -P OTHCMP WIPER BACK TO BTM AT 18,904'. 4076 PSI AT 2.26 BPM. 07:00 - 08:30 1.50 ZONISO P OTHCMP DRILL CEMENT TO 18938'. 4008 PSI AT 2.25 BPM IN. 200-300 PSI MTR WORK. BEGIN LOSING PARTIAL RETURNS AT 18,925'. 2.25 IN/1.75 BPM OUT. UNABLE TO MAKE MUCH FOOTAGE. WT TRANSFER GOOD. GOOD MOTOR WORK, BUT WILL NOT DRILL OFF. BIT LIKELY WORN. " PJSM IN OPS CAB. 08:30 - 12:30 4.00 ZONISO P - OTHCMP CIRCULATE OUT OF HOLE FOR BIT/BHA CHANGE. 3715 PSI AT 2.21 BPM. NOTED MOTOR RUBBER ACROSS SHAKER DURING TRIP. HOLD PJSM NEAR SURFACE. 12:30 - 15:15 2.75 ZONISO : P OTHCMP FLOW CHECK. GET OFF WELL. UNSTAB COIL. LD BHA COMPONENTS. BIT IN GOOD CONDITION:2-1-I. MU BTT 3.75"DRAG BIT. REPLACE MOTOR AND COIL CONNECTOR. PLACE ANTI STALL TOOL ABOVE AGITATOR. STAB COIL. GET ON WELL. TEST QT SUB. CIRC TEST AGITATOR. 15:15 - 21:15 6.00 ZONISO P OTHCMP RUN IN HOLE. RATE OF 0.5 BPM AT 1956 PSI. Printed 2/6/2012 8:10:35AM forth America -ALASKA- BP Page 13 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:• 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:15 - 22:45 1.50 ZONISO N STUC OTHCMP WHILE RIH AT 10 FPM AT 18888'MOTOR STALLED.NO WT SEEN. P/U TO 60K AND PULLED TIGHT. PUMP PSI INCREASED TO 0.5 BPM AND 3200 PSI INDICATING MOTOR NOT ROTATING.BIT STUCK. WORK PIPE TO 65K RIH AND COCKING JARS AND PULLING 65K. NOTIFACATIONS MADE TO DRILLING SUPER. HOLD NUETRIL WEIGHT AND WORK PUMPS TO TRY AND FREE MOTOR AND BIT WITH NO SUCCESS. RIH COCKING JARS AND PULLING 70K WITH ALL PRESSURE BLEED FROM STRING.NO GO. REPEAT AGAIN AS ABOVE TO 75K,80K,AND BROKE FREE AT 83K. 22:45 - 00:00 1.25 ZONISO P OTHCMP WIPER TRIP TO 13,000' RATE OF 2.54 BPM WITH 3567 PSI. 1/3/2012 00:00 - 05:00 5.00 ZONISO P OTHCMP WIPER TRIP TO 13,000' RATE OF 2.54 BPM WITH 3684 PSI. OBTAIN SPRS#1 - 1.0 BPM AT 1952 PSI,0.5 BPM AT 1516 PSI,#2-1.0 BPM AT 1970 PSI, AND 0.5 BPM AT 1505 PSI. SLOW DOWN TO—5 FT/MIN AS RIH. AT 18,886'PRESSURE INCREASED INSTANTLY AND POP OFF BLEW. _ P/U WITH NO PROBLEMS.LINE UP PUMPS. 05:00 06:00 1.00 ZONISO P r OTHCMP TIME DRILL FROM 18,880'AT 0.5 FT/MIN PUMP RATE OF 2.59 BPM AND 3787 PSI RIH AT 18,880' AT 18,886'MOTOR WORK INCREASED TO 50 06:00 06:30 0.50 ZONISO P OTHCMP 'PSI AND SLOWLY INCREASED TO 100 PSI.. (CREW CHANGE. DISCSUSS OPERATIONS AND RIG STATUS. MAKE INSIDE AND OUTSIDE ROUNDS. CONTINUE TO REAM TO BTM WITH DRAG BIT. 06:30 - 08:30 2.00 ZONISO P OTHCMP CONTINUE TO WORK BIT TO BTM TIME MILLING. 3800 PSI FS AT 2.55 IN. MAKE REPEATED ATTEMPS TO GET BIT TO DRILL AHEAD FROM 18,936'. FREQUENT STALLING. PUMP PRESSURE UP TO 4200 CHILE CIRCULATING, EVEN OFF BTM. NOT SURE WHY. DISCUSS WITH TOWN. 08:30 - 14:45 6.25 ZONISO P OTHCMP DECIDE TO POOH FOR A DIFFERENT BIT OR MILL. 3790 PSI AT 2.54 BPM IN. 14:45 - 17:45 3.00 ZONISO P OTHCMP L/D BHA FOUND BIT WORN OUT. M/U BHA AND GET APPROVAL FROM COMPANY RP. M/U INJECTOR AND TEST. 17:45 - 22:30 4.75 ZONISO P OTHCMP RIH WITH BHA 0.43 BPM AT 1073 PSI. OBTAIN PARAMETERS SPRS. PUMP#1 -1.0 BPM AT 1648 PSI,0.5 BPM AT 1198 PSI,#2-1.0 BPM AT 1692 PSI,AND 0.5 BPM AT 1250 PSI. RIH WITH 2.62 BPM AT 3472 PSI @ 1.5 FT/MIN 18,882' Printed 2/6/2012 8:10:35AM North America-ALASKA- BP Page 14 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time: 9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date i From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 ZONISO P OTHCMP REAM OPEN FROM 18,882' RATE OF 2.62 BPM WITH 3571 PSI-100 PSI MOTOR WORK PVT 360 BBLS 23:30-18937'LOSS RATE OF-10 BPH. 00:00-18965' 1/4/2012 00:00 - 04:15 4.25 ZONISO P OTHCMP DRILL AHEAD RATE AT 2.71 BPM WITH 3904 PSI. PVT OF 334 BBLS LOSS RATE OF-10 BPH 0140 HRS- 19.018' RATE OF 2.69 BPM WITH 4,142 PSI. PVT OF 378 BBLS WITH-3 6 BPH LOSS RATE 0230 HRS- 19,043' RATE OF 2.67 BPM WITH 3970 PSI. PVT OF 377 BBLS. 0415 HRS-19,100'AT 2.68 BPM WITH 3984 PSI 04:15 - 04:45 0.50 ZONISO P OTHCMP 1000 FT WIPER TRIP. WHILE POOH AT 18,808'PULLED HEAVY TO 60K WORK PIPE DOWN.NO SUCCESS. 04:45 - 06:45 2.00 ZONISO N STUC ' OTHCMP WORK PIPE DOWN 2 TIMES STACKING 10K AND LETTING JARS GO OFF.PULL UP TO 70K.MIXING LUBE PILL. 0630 HRS-GIVE 24 HOUR NOTICE TO AOGCC MATT HERRARA OF WEEKLY BOPE TEST. 06:45 - 07:00 0.25 ZONISO~ N STUC; OTHCMP RIH TO JAR DOWN. STACK WT 4 TIMES, NO EVIDENCE OF JARS FIRING. PUMP 5 MORE BBLS SLICK PILL OUT. 07:00 - 09:40 2.67 ZONISO N STUC ' OTHCMP PRESSURE UP TO 500 PSI WHP SEVERAL TIMES AND BLEED OFF WHILE IN COMPRESSION, NO MOVEMENT. PRESSURE UP TO 1000 THEN 1170 PSI, ESTABLISHISH INJECTIVITYAT 1200 PSI,1.6 BPM. BLEED OFF QUICKLY,REPEAT 3 TIMES. NO MOVEMENT SEEN. DISCUSS OPTIONS WITH ODE AND CTD SUPT. GO TO NEUTRAL WEIGHT(40K)AND CIRC MIN RATE. 09:40 - 15:50 6.17 ZONISO N STUC OTHCMP 'STACK WT TO COCK JARS, PULL UP TO 65K AND WAIT FOR JARS TO FIRE. REPEAT, PULL TO 75K AND WAIT,JARS FIRE ONCE AND CT IS FREE POOH. PUMP 2.25 BPM/3600 PSI WHILE POOH. 15:50 - 16:45 0.92 ZONISO N STUC OTHCMP TAG STRIPPER AND UD BHA. BIT HAS CHIPPED TEETH ON THE FACE. 16:45 - 00:00 7.25 ZONISO N STUC OTHCMP R/U AND DROP QTS FROM INJECTOR HEAD. INSTALL CUTTER ON INJECTOR HEAD. CUT 2,100'OF COIL AND UD. 1/5/2012 00:00 - 01:00 1.00 ZONISO N STUC OTHCMP CUT 400'OF COIL FORA TOTAL OF 2500'OF COIL CUT. L/D COIL CUTTER. 01:00 - 03:00 2.00 ZONISO N STUC , OTHCMP R/U AND TEST COIL CONNECTOR TEST TO 4000 PSI AND 38K PULL TEST.GOOD TEST. Printed 2/6/2012 8:10:35AM 4orth America -ALASKA- BP Page 15 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date!Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 05:30 2.50 ZONISO N STUC OTHCMP TEST LUBRICATOR AND TWCS TESTED TO 3500 PSI-GOOD INSPECT CHAIN REPLACING ELASTIMERS 23 EACH CLEAN RIG FLOOR. 05:30 - 12:00 6.50 BOPSUR P , OTHCMP R/U TO TEST BOPE. TEST SWAB AND MASTER VALVE INDEPENDENTLY. OPEN BOP DOORS AND INSPECT RAMS. REPLACE BLADE SEAL ON BLIND/SHEAR RAMS AND TOP SEAL ON ONE UPPER COMBI RAM. INSTALL RAMS AND BOP DOORS. GET A SHELL TEST ON BOPS, FIND A GREASE PLUG ON THE CHOKE MANIFOLD LEAKING. CHANGE IT OUT AND GET A GOOD SHELL TEST. 12:00 - 18:00 6.00 BOPSUR P OTHCMP TEST BOPS,ALL RAMS,ANNULAR AND CHOKE VALVES. TEST IS WITNESSED BY AOGCC INSPECTOR CHUCK SCHEEVE AND WSL,TOOLPUSHER ACTIVATE BOPS FROM BOTH REMOTE STATIONS 18:00 - 18:30 I 0.50 BOPSUR P OTHCMP R/D BOPE TEST EQUIPMENT. II , 18:30 - 22:00 3.50 ZONISO P OTHCMP FILL HOLE WITH 6.4 BBLS POP OFF WELL. R/U TO SLIP AND CUT DRILLING LINE. PJSM FOR SLIP AND CUT. SLIP AND CUT LINE. 22:00 - 23:00 1.00 ZONISO 1, N DPRB OTHCMP PJSM FOR P/U BHA. CLEAN OUT BHA WITH 19.5'OF VENTURI 23:00 - 00:00 1.00 ZONISO N DPRB OTHCMP RIH WITH CLEAN OUT BHA. RATE OF 0.39 WITH 1230 PSI. 1/6/2012 00:00 - 02:30 2.50 ZONISO N DPRB OTHCMP RIH WITH CLEAN OUT BHA. 0.5 BPM AT 1761 PSI. OBTAIN SPRS AND PARAMETERS.40K UP WT. 12K DOWN WT.SPR FOR#1 -1.0 BPM AT 2157 PSI,0.5 BPM AT 1670 PSI,#2-1.0 BPM AT 2125 PSI,0.5 BPM AT 1700 PSI 02:30 - 06:00 3.50 ZONISO N DPRB OTHCMP 15,000'RIH WASHING DOWN WITH REVERSE JUNK BASKET. RATE OF 2.36 BPM AT 3800 PSI. OBTAINING PARAMETERS EVERY 500'TAG SOMETHING AT 17,925' PUSHED DOWN 17,930'STACKING WT P/U AND PUSHED TO 17,935'. P/U IS CLEAN. 0500 HRS-17,937'NOW OBTAINING PARAMETERS EVERY 250'. TAGGING UP 6 TIMES ATTEMPT TO SUCK UP BLOCK BY SLOWLY RIH ABOVE BLOCKAGE. CONTINUE TRYING TO WORK PAST 17935 FT, NOT ABLE TO. _ 06:00 - 10:15 4.25 ZONISO N DPRB OTHCMP POOH. 10:15 - 12:15 2.00 ZONISO N STUC OTHCMP TAG STRIPPER,UD VENTURI BHA. RECOVER ABOUT A SHOVELFUL OF SMALL CEMENT PIECES AND A FEW SMALL BITS OF BRASS COLORED METAL. 12:15 - 12:40 0.42 ZONISO N STUC OTHCMP PJSM FOR M/U BHA#13. Printed 2/6/2012 8:10:35AM forth America -ALASKA- BP Page 16 of 29 Operation Summary Report Common Wet Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-OOXXC-C: (3,750,054.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:40 - 13:15 0.58 ZONISO N STUC OTHCMP M/U BHA#12-DS331 MILL,3.79 NO-GO, AGITATOR,XTREME MOTOR,3/4" DISCONNECT,JAR AND ACCELERATOR. 13:15 - 14:15 1.00 ZONISO N STUC OTHCMP WAIT ON 3/4"DISCONNECT FROM BTT IN 'DEADHORSE,THE DISCONNECT ON LOCATION HAS A 5/8"BALL SEAT. 14:15 - 14:50 i 0.58 ZONISO N STUC OTHCMP 3/4"DISCONNECT ARRIVES,FINISH M/U BHA. 14:50 - 18:00 3.17 ZONISO N STUC OTHCMP RIH,TEST AGITATOR AT 300 FT WORKING GOOD. 15600' 18:00 - 19:30 1.50 ZONISO N STUC OTHCMP AT 15,600'BRING UP TO RATE TO 2.45 BPM WITH 3750 PSI. 19:30 HRS-RIH AT 30 FT PER MIN TILL 17,830' WHEN BIT STARTED TAKING WEIGHT AND PRESSURE BEGAN INCREASING P/U AND PULLED FREE. WORKING DOWN SLOWLY TO OPEN UP HOLE. OBTAIN SPRS OF#1 -0.5 BPM AT 1886 PSI, 1.0 BPM AT 2267 PSI,2.5 BPM AT 3830 PSI.#2 -0.5 BPM AT 1890 PSI,1.0 BPM AT 2250 PSI, 2.5 BPM AT 3845 PSI. 19:30 - 22:15 2.75 ZONIS9_ P OTHCMP DRILLING CEMENT FROM 17,830'CHECKING P/U EVERY 50' RATE OF 2.50 BPM WITH 3746 PSI. 2030-HRS 17,895'AT 2.62 BPM WITH 3,823 PSI PUMP A 10 BBLS LOW VIS FOLLOWED BY 10 BBLS HI-VIS SWEEP. 21:15 HRS-17941'WITH 2.61 BPM AT 3823 PSI.SEEING STRINGERS OF TIMES THAT THERE IS MOTOR WORK. 22:05 HRS-17,987'WITH 2.62 BPM AT 3812 PSI. DRILL AHEAD TO 18,000'. 22:15 - 22:45 0.50 ZONISO P OTHCMP SHORT TRIP TO CLEAN HOLE AT 17,830' HOLD WELL CONTROL DRILL. 22:45 - 23:30 0.75 ZONISO P OTHCMP DRILL AHEAD WORKING ON GETTING BACK TO TD OF 19,100' RATE OF 2.63 BPM AT 3940 PSI. RIH TO 18,150' 23:30 - 00:00 0.50 ZONISO P OTHCMP WIPER BACK TO 17,830' 1/7/2012 00:00 - 00:30 0.50 ZONISO P OTHCMP WIPER TRIP TO 17,830' 00:30 - 01:45 1.25 ZONISO P OTHCMP DRILL AHEAD AT 2.61 BPM WITH 3878 PSI. PVT OF 308 BBLS. 0100 HRS-18,232'PUMP RATE OF 2.61 BPM WITH 3856PS1. 0130 HRS-18,383'TAG UP AND STALL. P/U PULLED 10K OVER AND CAME FREE. 01:45 - 02:45 1.00 ZONISO P OTHCMP WIPER TRIP TO 17,800' PULLED HEAVY AND STALLED MOTOR AT 18,200'STOP AND RIH 50'PULL OUT OF HOLE AGAIN SEEING MOTOR WORK.AT 2.53 BPM WITH 3585 PSI WHILE POOH.RIH WITH NO PROBLEMS. Printed 2/6/2012 8:10.35AM North America -ALASKA- BP Page 17 of 29 { Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C:(3,750,054.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date ; From-To j Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:45 - 08:00 5.25 ZONISO P OTHCMP DRILL AHEAD AT 2.62 BPM WITH 3823 PSI. PVT OF 312 BBLS. 0330 HRS-18476' RATE OF 2.62 BPM WITH 3850 PSI. PUMPED A 20 BBL LOW WITH 20 BBLSHI-VIS SWEEP SEEING A 10%INCREASE IN CUTTINGS AT THE SHAKERS. 0500 HRS-18,660'RATE OF 2.62 BPM WITH _4006 PSI. 08:00 - 09:40 1.67 ZONISO P OTHCMP CONTINUE WORKING DOWNHOLE CAREFULLY. WT CHECK EVERY 50 FT. MIX UP A WEIGHTED HI-VIS PILL FOR SWEEP,9.6 PPG. 09:40 - 11:00 1.33 ZONISO P OTHCMP PILL IS READY,PUMP 15 BBLS LO-VIS FOLLOWED BY 15 BBLS WEIGHTED HI-VIS. SOME RUBBER SEEN ON SHAKER, RIH TO TRY AND MILL NEW CEMENT. STALLING OFF BOTTOM,AT DIFFERENT DEPTHS. 11:00 - 14:20 j 3.33 ZONISO P OTHCMP DISCUSS WITH ODE AND CTD SUPT, DECISION IS MADE TO STOP MILLING CEMENT AT 19094 FT AND PROCEED TO THE NEXT STEP OF THE WELLPLAN. PULL LONG WIPER TRIP BACK TO 13000 FT. LO/HI-VIS SWEEP BRINGS BACK MORE SMALL PIECES OF RUBBER, NOTHING ELSE UNUSUAL. 14:20 - 16:10 1.83 ZONISO P OTHCMP AT 13000 FT WIPER TRIP BACK DOWN TO 17800 FT. PUMP 15 BBLS LO THEN 15 BBLS HI-VIS SWEEP. 16:10 - 22:00 5.83 ZONISO P OTHCMP POOH,PUMP 2.50 BPM WHILE POOH. 22:00 - 23:00 1.00 ZONISO P OTHCMP L/D BHA MONITOR WELL-STATIC. MILL AT 3.37"NO GO. DISCONNECT WORN-ORDER OUT REPLACEMENT. 23:00 - 23:30 0.50 ZONISO P OTHCMP PRESSURE TEST WELL TO 1000 PSI FOR 5 MIN. PRESSURE DROPPED TO 650 PSI.AFTER 5 MIN. IT IS DETERMINED BY SLB KYLE THAT IS CAPABLE OF STARTING FIRING SEQUENCE. PRESSURED UP TO 1200 PSI TO SEE IF CAPABLE OF SHUT DOWN SEQUENCE PRESSURE BLEED OFF TO 825 PSI AFTER 2 MIN WHICH WAS DETERMINED TO BE GOOD. 23:30 - 00:00 0.50 ZONISO P OTHCMP P/U MEM LOG DRIFT RUN BHA WITH E FIRE TOOL. PROGRAM TOOL E-FIRE TOOL FOR TEST RUN DURING MEM LOG RUN 1/8/2012 00:00 02:30 2.50 ZONISO P OTHCMP FINISH P/U MEMORY LOG BHA WITH E-FIRE TOOL. PJSM AND WAIT ON DISCONNECT. BRING IN MEMORY TOOLS AND E-FIRE HEAD. 02:30 - 06:00 3.50 ZONISO P OTHCMP RIH WITH.49 BPM AT 1095 PSI. RIH TO 13,000'AT 80'PER MIN. Printed 2/6/2012 8:10:35AM North America -ALASKA- BP Page 18 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 07:15 1.25 ZONISO P OTHCMP CONTINUE RIH TO STARTING DEPTH OF LOG RUN. PARK AT 13000 FT AND DISCUSS LOGGING PROCEDURE WITH SLB MEM LOGGER. LOG DOWN 60 FT/MIN FROM 13000 FT. 07:15 - 08:00 0.75 ZONISO P OTHCMP PARK AT 16775,TOP SHOT DEPTH FOR THE NEXT PERF RUN. PERFORM TEST OF EFIRE HEAD WHICH IS ON THE LOGGING STRING. 08:00 - 08:20 0.33 ZONISO P OTHCMP CONTINUE LOGGING DOWN. TAG AT 17008 FT,SET 7K DOWN CLEAN PICKUP REPEAT 2 MORE TIMES, CAN'T PASS. INCREASE PUMP RATE TO 1.3 BPM,TRY DIFFERENT RUNNING SPEEDS. 08:20 - 10:40 2.33 ZONISO P - OTHCMP PICK UP AND START A LO-VIS FOLLOWED BY A HI-VIS PILL. WHEN PILL IS AT THE END OF THE CT SET ABOUT 3K DOWN ON THE TAG SPOT. WORK PIPE UP AND DOWN HERE 4 TIMES WHILE PILL IS EXITING,SET 4-5K DOWN EACH TIME. • PICKUPS ARE CLEAN EACH TIME. 10:40 - 14:15 3.58 ZONISO P OTHCMP POOH. LOG 60 FT/MIN UP. 14:15 - 18:00 3.75 ZONISO-- P OTHCMP TAG STRIPPER AND FLOW CHECK WELL. UD MEM LOGGING TOOLS AND DRIFT. DOWNLOAD DATA. 18:00 - 18:30 0.50 ZONISO P OTHCMP DISCUSS NEXT RUN WITH ODE,CTD SUPT AND WTL. DECIDE TO RUN A NOZZLE WITH WEIGHTED SWEEPS ON BOTTOM TO TRY AND CLEAN DEBRIS FROM WELL. WAIT ON 12 PPG SWEEP MATERIAL TO ARRIVE. 18:30 - 21:00 2.50 ZONISO P OTHCMP P/U BHA WITH 3"NOZZLE RUN. TEST MUD PUMP. STAB INJECTOR AND TEST. 21:00 - 22:30 1.50 ZONISO P OTHCMP MIX AND PUMP HI-VIS PILL WITH SUPER SWEEP TO ENSURE NO PLUGGING ISSUES WHILE RIH. RATE OF 3.01 BPM WITH 3182 PSI. 22:30 - 00:00 1.50 ZONISO P OTHCMP RIH 95 FT/MIN. 1/9/2012 00:00 - 01:00 1.00 ZONISO C OTHCMP RIH WITH 2.91 BPM AND 3190 PSI. • 95 FT/HR 01:00 - 04:30 3.50 ZONISO C OTHCMP RIH FROM 13,000'AT 15'PER HOUR. WHILE WAITING ON WEIGHTED MUD FROM PLANT PUMP RATE OF 3.05 BPM WITH 3464 PSI. PUMP SWEEPS TO EXIT BIT AT 17,000' WHILE RIH. SWEEPS CONSIT OF 20 BBLS WATER FOLLOWED BY 20 BBLS VIS 12.0 PPG MUD WITH SUPER SWEEP. REPAINT FLAG AT EOP OF 16,493.86. NOTHING WAS SEEN WHILE RIH. Printed 2/6/2012 8:10.35AM North America-ALASKA- BP Page 19 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:30 - 08:40 4.17 ZONISO C OTHCMP 17,600'CIRCULATING SWEEPS SLOWLY WORKING PIPE. RATE OF 3.05 BPM WITH 3428 PSI. 1ST SWEEP RESULTS-SLIGHT INCREASE IN CUTTINGS AND ALOT OF SUPER SWEEP WAS SEEN AT SHAKERS. 05:15- MIX AND PUMP SECOND SWEEP.BIT 'AT 17600'WHEN SWEEPS EXIT. 07:30-PUMP 3RD SWEEP DOWN AND AROUND ON BOTTOM. RESULTS OF SWEEPS ARE SLIGHT INCREASE IN SMALL SIZE CUTTINGS,NO LARGE CUTTINGS RETURNED. 08:40 - 10:20 1.67 ZONISO C OTHCMP START FINAL PILL DOWN THE CT AT 17600 FT WAIT FOR PILL TO COME OUT NOZZLE THEN POOH. 10:20 - 15:00 4.67 ZONISO C OTHCMP POOH. PUMP 3.45 BPM ALL THE WAY OUT. PERFORM JOG AT SURFACE,500 FT. NO EXCESS CUTTINGS SEEN. 15:00 - 16:00 1.00 ZONISO C OTHCMP 'TAG STRIPPER AND UD BHA. 16:00 - 18:00 2.00 ZONISO , -C OTHCMP M/U NOZZLE TO SWIZZLE STACK. DROP 3/4 BALL AND PUMP IT AROUND AT THE SAME TIME. 18:00 - 19:00 1.00 ZONISO P OTHCMP CREW CHANGE INSPECT EQUIPMENT AND RIG WALK AROUND INSPECT NEXT BHA AND PERF GUNS. 19:00 - 21:30 2.50 ZONISO P OTHCMP PJSM FOR MAKING UP BHA. M/U BHA WITH 25 GUNS. M/U INJECTOR AND TESTED. 21:30 - 00:00 2.50 ZONISO P OTHCMP RIH WITH PERF GUNS. RIH WITH 0.3 BPM AND 875 PSI RIH TO 6443' _ 1/10/2012 00:00 - 06:50 6.83 ZONISO P OTHCMP RIH WITH PERF BHA. RATE OF 0.30 BPM WITH 1025 PSI. 0430 HRS-13,406' 06:50 - 07:50 1.00 ZONISO P OTHCMP STOP AT FLAG AND CORRECT-18 FT. RIH TO BALL DROP DEPTH,WHICH IS ABOUT 7 FT OFF OF SHOT DEPTH. PICK UP TO SHOT DEPTH AND PUMP 10 BBLS HI-VIS SWEEP AHEAD. SHUT DOWN AND DROP 5/8"STEEL BALL. LAUNCH WITH 2100 PSI,CHASE WITH HI-VIS PILL AT 1.1 BPM. 07:50 - 10:00 2.17 ZONISO P OTHCMP BALL IS HEARD ROWING,RIH TO SHOT DEPTH AND PUMP IT OVER THE GOOSENECK AT 75%REEL VOLUME SLOW PUMP TO 0 7 BPM AT 115 BBLS AWAY NO SIGN OF THE BALL GOING ON SEAT. CYCLE PUMPS UP AND DOWN,TRY SLIGHTLY HIGHER RATES.,NO LUCK. 10:00 - 11:10 1.17 ZONISO P OTHCMP GO TO 0.5 BPM AND MOVE PIPE UP AND DOWN SLOWLY,NO LUCK PARK 2 FT BELOW SHOT DEPTH,PRESSURE SURGE CT 2 TIMES THEN GO TO 0.8 BPM. INCREASE RATE TO 1.26 BPM/1900 PSI. PUMP A SECOND 15 BBL SWEEP AROUND, MORE VISCOUS THAN THE FIRST. Printed 2/6/2012 8:10:35AM Vorth America -ALASKA- BP Page 20 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-OOXXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12©91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:10 - 12:15 1.08 ZONISO P OTHCMP BALL ON SEAT AT 185 BBLS AWAY. PRESSURE UP TO 4300 PSI AND FIRE GUNS, GOOD SHOT INDICATION FROM ACOUSTIC AND FLUID LOSS. HOLD 200-300 PSI WHP,POOH AT 50 FT/MIN. 12:15 - 12:55 0.67 ZONISO P OTHCMP STOP AT 14000 FT AND BLEED OFF,FLOW CHECK WELL. TRIP SHEET IS-2 BBLS TO THIS POINT. AFTER 20 MIN FILL WELL WITH 0.7 BBLS. 12:55 - 15:10 2.25 ZONISO P OTHCMP FILL WELL WITH 0.6 BBLS. POOH. 15:10 - 15:25 0.25 ZONISO P OTHCMP AT 6000 FT TRIP SHEET SHOWS-1 BBLS INSTEAD OF-5.4 BBLS DISPLACEMENT. STOP HERE AND FLOW CHECK WELL FOR 10 MIN, FLOW CHECK IS NEGATIVE. CUMULATIVE TRIP SHEET VOLUME IS EVEN TO THIS POINT. FILL WELL WITH 0.3 BBLS THEN CONTINUE POOH. 15:25 - 18:40 3.25 ZONISO P OTHCMP POOH. INVESTIGATE DISCREPANCY IN TRIP SHEET,FIND PIT#2 FLUID LEVEL IS LOW ENOUGH FOR THE AGITATOR TO DISTURB THE SURFACE OF THE FLUID GIVING ERRONEOUS PIT LEVEL READINGS. 18:40 - 19:00 0.33 ZONISO P OTHCMP 'CREW CHANGE,DISCUSS CURRENT OPS. CHECK EQUIPMENT. PJSM WITH SLB PERF CREW.REVIEW SOP FOR HANDLING PERF GUNS. '19:00 - 21:30 2.50 ZONISO P OTHCMP L/D FIRING HEAD AND 25- 2.88"PERF GUNS. 21:30 - 22:30 1.00 ZONISO P OTHCMP MONITOR WELL. PJSM, LOAD OUT TOOLS,CLEAR AND CLEAN RIG FLOOR. PVT=173 BBLS.I/A=166 PSI,O/A=0 PSI. 22:30 - 23:50 1.33 ZONISO P OTHCMP PJSM, P/U NOZZLE BHA#16. NOZZLE,X/O,1 JT 2 3/8"PH6, X/O, HI-LO DC, DFCV,X/O,1 JT 2 3/8"PH6, X/O, CTC. M/U INJECTOR.TEST QTS. 23:50 - 00:00 0.17 ZONISO P OTHCMP RIH WITH BHA#16 PUMPING.5 BPM 1100 PSI. RIH 95 FPM. 1/11/2012 00:00 - 04:45 4.75 ZONISO P OTHCMP RIH WITH BHA#16 PUMPING.5 BPM 1100 PSI. RIH 95 FPM. FLOWCHECKAT 6000'-.5 BBL DISCREPENCY IN TRIP SHEET. WELL STATIC-CONTINUE RIH.WT CHECK AT 15,400' P/U=40K,S/0=14K.RIH 30 FPM TO 16,775' 04:45 - 05:30 0.75 ZONISO P OTHCMP DISPLACE TO 2%KC. LOAD VAC TRUCK WITH MUD FROM PITS. STORE REMAINING MUD IN PITS,CLEAN PIT 2- FOR KCL VOLUME. 05:30 - 09:00 3.50 ZONISO P OTHCMP POOH. 09:00 - 10:00 1.00 ZONISO P OTHCMP PJSM FOR UD NOZZLE BHA. TAG STRIPPER AND L/D BHA. TRIP SHEET IS-8 BBLS. Printed 2/6/2012 8:10:35AM Vorth America -ALASKA- BP Page 21 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-OOXXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:00 - 10:50 0.83 ZONISO P OTHCMP PERFORM INJECTIVITY TEST AS PER MEL IVESON, FULLBORE PE. ABLE TO PUMP 2 BPM AT 1600 PSI WHP, GOOD INJECTIVITY. 10:50 - 11:20 0.50 ZONISO P OTHCMP TEST MASTER VALVE AND WING VALVE TO MAKE TIE-IN TO WING 1502. TEST AND CHART 250/3500 PSI,GOOD. 11:20 - 14:30 3.17 ZONISO P OTHCMP PURGE KILL AND CHOKE LINE WITH AIR. DSM MAKE FINAL TIE-IN TO WELLHEAD AND PT THE SIT LINE. NORDIC CREW REBUILDS CHOKE VALVE#4 AND PT,GOOD. 14:30 - 14:50 0.33 ZONISO P OTHCMP PJSM WITH PUMP CREW,TRUCK DRIVERS AND RIG CREW ON SIT JOB. 14:50 - 15:30 0.67 ZONISO N SFAL OTHCMP DSM THAWING OUT SSV WITH HEATER TRUNK,TAKING MORE THAN 1 HR TO CLOSE. SLB HAVING ELECTRICAL PROBLEMS WITH THEIR PUMP VAN,CALLED OUT A MECHANIC FROM E. SSV WORKING 15:30 - 18:00 2.50 ZONISO N SFAL OTHCMP RKING NONOW,SLB WORKING ON PUMP VAN PROBLEMS. SLB CALLED OUT ANOTHER PUMP VAN 18:00 - 18:30 0.50 ZONISO__ N SFAL OTHCMP CREW CHANGE,DISCUSS CURRENT OPS. • CHECK RIG EQUIPMENT. 18:30 - 19:40 1.17 ZONISO N SFAL OTHCMP PJSM,R/D SLB PUMP VAN. SLB PUMP VAN ON LOCATION AT 18:45. R/U FOR SIT PUMP JOB. 19:40 - 20:00 0.33 ZONISO P OTHCMP PJSM FOR SIT PUMP JOB WITH SLB PUMP CREW. RIG CREW AND TRUCK PUSHER. REVIEW MSDS FOR PRODUCTS PUMPED. 20:00 - 00:00 4.00 ZONISO P OTHCMP PT HARDLINE TO 3800 PSI. PUMP SIT JOB AS PER PUMPING SCHEDULE. 1/13/2012 00:00 - 02:00 2.00 ZONISO P OTHCMP CONTINUE TESTING BOPE. FINISH TESTING RAMS,CHOKE MANIFOLD VALVES, KILL VALVES. HCR .3"MANUAL VALVE AND SAFETY VALVES TO 300/3500 PSI 5 MIN EACH.TEST ANNULAR TO 300/2500 PSI 5 MIN EACH. CHART RECORD TESTS. DISPLACE COIL WITH MUD WHILE TESTING BOPE PERFORM ACCUMULATOR DRAWDOWN TEST. 02:00 - 03:05 1.08 ZONISO P OTHCMP PJSM,C/O PACKOFF. TEST INNER REEL VALVE AND PACKOFF TO 300/3500 PSI 5 MIN EACH. CHART RECORD TESTS. 03:05 - 04:00 0.92 ZONISO P OTHCMP 'PUMP SLACK FORWARD, PUMP 3.14 BPM 2800 PSI. PJSM, LOAD WHIPSTOCK AND RUNNING TOOLS ONTO RIG. BLOW DOWN KILL LINE. Printed 2/6/2012 8:10:35AM Vorth America -ALASKA- BP Page 22 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 06:30 2.50 ZONISO P OTHCMP OPEN MASTER AND SWAB VALVE.14 BBLS TO FILL HOLE. M/U AND PT CHECKS TO 300/3500 PSI PT MP#2 POP VALVE TO 300/3500 PSI 5 MIN EACH. CHART RECORD TESTS. PREP TO P/U WHIPSTOCK BHA. 06:30 - 07:30 1.00 ZONISO P OTHCMP M/U BHA#17,4-1/2"RETRIEVABLE MONOBORE PACKER WHIPSTOCK WITH FLOAT VALVE. 07:30 - 11:00 3.50 ZONISO P OTHCMP SURFACE TOOL TEST IS GOOD. RIH, PUMP 0.4 BPM/840 PSI THROUGH OPEN EDC. SLOW DOWN THROUGH ALL JEWELRY. 11:00 - 13:00 2.00 ZONISO P OTHCMP LOG GR DOWN FROM 13540 FT FOR INITIAL TIE-IN. CORRECT-7 FT. CONTINUE RIH. WEIGHT CHECK AT 15400 FT IS 43K. ORIENT TO 45L FOR REST OF TRIP IN HOLE. 13:00 - 13:30 0.50 ZONISO _P OTHCMP TIE IN AGAIN AT 16620 FT,CORRECT+1.5 FT. RIH TO PAST SETTING DEPTH THEN PULL BACK TO IT. CLOSE EDC. PRESSURE UP CT TO 2800 PSI TO SHEAR OFF SETTING TOOL. 13:30 - 14:00 0.50 ' ZONISO P OTHCMP TRY TO SET WT ON WHIPSTOCK TO CONFIRM SET. RIH SLOWLY 1 FT/MIN,SET 1K DOWN ON DHWOB. PICK UP AND GET SLOW PUMP RATES. CLOSE CHOKE AND PRESSURE UP WELL TO 500 PSI WHP,HOLDING GOOD. 14:00 - 18:00 4.00 ZONISO P OTHCMP POOH.TAG UP. 18:00 - 18:35 0.58 ZONISO P OTHCMP CREW CHANGE.DISCUSS ONGOING RIG OPS. CHECK EQUIPMENT. FLOWCHECK WELL-STATIC. PJSM FOR UD BHA#17, P/U WINDOW MILL, BHA #18. 18:35 - 20:00 1.42 STWHIP P WEXIT SET BACK INJECTOR,UD WHIPSTOCK RUNNING TOOLS. M/U WINDOW MILL BHA#18. 3.80"GO,3.79 NO GO MILL,3.79"STRING MILL,2 7/8"XTREME MOTOR, 2 JTS 2 3/8"PH6,XO,XO, BS, DGS, DPS, EDC, PC, SWP, LQC, UQC,XO,CTC. M/U INJECTOR.TEST QTS,OPEN EDC. PVT=300 BBLS. 1/A=211 PSI.O/A=13 PSI 20:00 - 00:00 4.00 STWHIP P WEXIT RIH 95 FPM PUMPING.5 BPM 1060 PSI. LOG TIE IN FROM 13,615 FT. -1.5FT CORRECTION. P/U WT AT 16,000 FT=44K. RIH TO 16,670'LOG TIE IN.+1.5 FT CORRECTION. 1/14/2012 00:00 - 00:25 0.42 STWHIP P WEXIT RECORD SPR 1 AND2 MP. RIH,TAG AT 16,764 FT. Printed 2/6/2012 8:10:35AM Jorth America -ALASKA- BP Page 23 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: 1 'X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:25 - 01:30 1.08 STWHIP P WEXIT POH TO 16,720 FT.RE-TIE IN.0 CORRECTION- CONFIRM TIE IN. C NOTIFY FIELD SUPERINTENDANT AND ODE- Die,l THAT WE -f TAGGED TOP WHIPSTOCK 9 FT DEEPER (p THAN EXPECTED. DECISION MADE TO MILL WINDOW. 01:30 - 01:40 0.17 STWHIP P WEXIT 'RIH,TAG PINCH POINT AT 16,764 FT. 01:40 - 09:00 7.33 STWHIP P WEXIT TIME MILLING WINDOW FROM 16,763.6 FT. F/S=3400 PSI 2.76 BPM. 40 PSI MOTOR WORK STARTING. MILL TO 16764.6'IN 1 HR.WOB=.8-1K. SLOWLY INCREASE WOB TO 2.6K WITH 160 PSI MOTOR WORK. PVT=390 BBLS. INIOUT= 1/1 p� I/A=297 PSI.O/A=5 PSI.WHP=63 PSI. 09:00 - 11:00 2.00 STWHIP .P WEXIT CONTINUE MILLING WINDOW. 2.73/2.73 BPM @ 3400 PSI. DWOB=1.4K, CT WT=11K. 11:00 - 12:30 1.50 STWHIP P WEXIT MILLING AT 16772.3 FT. 2.74/2.74 BPM @3500 PSI AFTER 16774 FT ALLOW MILL TO DRILL RATHOLE AT 10-15 FT/HR. MILL RATHOLE TO 16782 FT. 12:30 - 14:10 1.67 STWHIP---, P WEXIT PICKUP SLOWLY AND REAM WINDOW. SEE ABOUT 50-70 PSI MOTOR WORK AT THE BOTTOM OF THE WINDOW ON THE FIRST UP PASS. SECOND PASS IS CLEANER. THIRD PASS HAS NO MOTOR WORK. 14:10 - 15:00 0.83 STWHIP P WEXIT PICK UP AFTER FINAL PASS AND SHUT DOWN PUMP. DRY DRIFT DOWN THROUGH WINDOW IS CLEAN. START 30 BBLS HI-VIS SWEEP DOWN THE CT. 15:00 - 19:45 4.75 STWHIP P WEXIT POOH. ATTEMPT TO OPEN EDC AT 13000 FT. POH PUMPING 2.53 BPM 2900 PSI. PJSM FOR BHA CHANGE. TAG UP. 19:45 - 19:55 ' 0.17 STWHIP P WEXIT FLOWCHECK WELL,STATIC. PVT=294 BBLS. 19:55 20:30 0.58 STWHIP P WEXIT SET BACK INIJECTOR,UD WINDOW MILL BHA #18. MILL=3.78 GO,3.77 NO GO. STRING REAMER=3.79 GO,3.78 NO GO. 20:30 - 21:00 0.50 STWHIP P WEXIT PJSM,CHECK TREE BOLTS. NO LOOSE BOLTS FOUND,ALL BOLTS REMAINED TORQUED, 21:00 - 22:15 1.25 DRILL P PROD1 M/U BUILD BHA#1� 13.75"PDC BIT,2 7/8"ULS MOTOR,HOT,DGS, DPS, EDC,PC,SWP,LQC,UQC,XO,CTC. M/U INJECTOR.TEST QTS.OPEN EDC. 22:15 - 00:00 1.75 DRILL P PROD1 RIH 95 FPM PUMPING.5 BPM 1000 PSI. Printed 2/6/2012 8:10:35AM Jorth America -ALASKA- BP Page 24 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292202300 Active Datum:W-12©91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase ' Description of Operations (hr) (ft) 1/15/2012 00:00 - 02:15 2.25 DRILL P PROD1 RIH WITH BHA#19 AT 50 FPM. PUMPING.55 BPM 1400 PSI. P/U WT AT 15,400 FT 44K. LOG TIE IN AT 16,620 FT. -2.5 FT CORRECTION. RECORD SPR 1 AND 2 MP. HOLD 315 DEG THROUGH WINDOW W/ PUMPS OFF. 02:15 - 06:30 4.25 DRILL P PROD1 DRILLING FROM 16,782 FT. F/S=3600 PSI AT 2.82 BPM 100 PSI MOTOR WORK. DHWOB=3-3.5K 35 FPH. PVT=381 BBLS.8.9 PPG IN/8.9 PPG OUT. WHP=50 PSI. I/A=317.0/A=6 06:30 - 06:50 0.33 DRILL P PROD1 CONTINUE DRILLING BUILD IN ZONE 4 AT 16930 FT. DRILL AT 90L TF FOR NOW TO CONTINUE LH TURN. ROP IS AROUND 50-60 FT/HR WITH 3-4K DWOB. DRILL TO 16950 FT. 06:50 - 07:20 j 0.50 DRILL P PROD1 WIPER TRIP BACK TO WINDOW,16970 FT. CLEAN PASS UP AND DOWN. 07:20 - 10:00 ! 2.67 1 DRILL P PROD1 DRILL FROM 16950 TF CHANGE AT 16990 FT,STACKING A WEIGHT A BIT TRYING TO DRILL PAST THIS DEPTH. DRILL AT 90R TO COMPLETE TURN AND GET HEADED DOWN THE CENTER OF THE POLYGON. 10:00 - 12:10 j 2.17 DRILL PROD1 START NEW MUD DOWN THE CT. 'DIFFICULT TO WORK BACK DOWN PAST 16990 WHERE TF CHANGED. ON BOTTOM DIFFICULT TO GET WEIGHT TO BIT, EVEN AFTER NEW MUD IS AROUND. _ !DRILL TO 17030 FT AND PULL BHA WIPER. 12:10 - 13:50 1.67 DRILL P PROD1 I ICK UP AND BACK REAM THROUGH TF CHANGE AREA AT 5 FT/MIN. BACK ON BOTTOM STILL DIFFICULT DRILLING. •GR INDICATES MASSIVE SHALE ZONE, LIKELY 45N. 13:50 - 14:40 0.83 DRILL P PROD1 PULL A WIPER DUE TO GEOLOGIC UNCERTAINTY. 14:40 - 16:40 2.00 DRILL P PROD1 BACK ON BOTTOM DRILLING. ROP IS AROUND 30 FT/HR WITH 2-3K DWOB. CT WT IS-12K. START LEVELLING OUT AFTER 17050 FT. DRILL TO END OF BUILD AT 17091 FT. 16:40 - 18:00 1.33 DRILL P PROD1 POOH. PULL THROUGH WINDOW AND SHUT DOWN PUMP. FLOW CHECK IS NEGATIVE. OPEN EDC. 18:00 - 20:10 2.17 DRILL P PROD1 CREW CHANGE,DISCUSS CURRENT OPS. CHECK EQUIPMENT STATUS. CONTINUE POH PUMPING 3.2 BPM 3450 PSI. POH TO 9670 FT. 1 BBL DISCREPENCY IN TRIP SHEET. Printed 2/6/2012 8:10:35AM North America -ALASKA- BP Page 25 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ (ft)- 20:10 - 20:25 0.25 DRILL P PROD1 FLOWCHECK WELL,STATIC. 20:25 - 22:15 1.83 DRILL P PROD1 POH, PERFORM 500 FT JOG AT SURFACE. PJSM FOR BHA. 22:15 - 22:25 0.17 DRILL P PROD1 CLOSE EDC.FLOWCHECK WELL-STATIC. 22:25 - 23:50 1.42 DRILL P PROD1 SET BACK INJECTOR.I/O BHA#19. BIT GRADE=1 /1 /N/A/X/I/NO BHA. M/U LATERAL BHA#20. RE-RUN PDC BIT. 0/0 MOTOR TO 2 7/8"XTREME MOTOR, HOT.ADD RES TOOL. C/O DGS. RR-DPS, EDC. PC. SWP. LQC. UQC.XO, CTC. M/U INJECTOR. OPEN EDC.TEST QTS. PVT=340 BBLS. 23:50 - 00:00 0.17 DRILL P PROD1 RIH 1/16/2012 00:00 - 03:00 3.00 DRILL P PROD1 RIH 95 FPM PUMPING.5 BPM 1450 PSI. P/U WT AT 16,680 FT 41K. CLOSE EDC. 03:00 - 04:00 1.00 DRILL P PROD1 GR TIE IN AT 16,680 FT.-3.5 FT CORRECTION. CONTINUE TO LOG DOWN FOR RA 16,773.5 FT. PASS THROUGH WINDOW WITH PUMP OFF AT 315 TFO. 04:00 - 04:30 0.50 DRILL P PROD1 RIH,TAG BOTTOM AT 17,089 FT. 7 ,RECORD SPR 1 AND 2 MP. 04:30 - 06:00 1.50 DRILL P PROD1 LOG MAD PASS DRILL TO 17096 FT. 06:00 - 06:15 0.25 DRILL N DFAL 17,091.00 PROD1 STALL AT 17096 FT AND PICK UP. DROP PUMP TO ZERO AND CT PRESSURE DOESN'T BLEED OFF. PICK UP SLOWLY AND TROUBLESHOOT. BLEED OFF CT PRESSURE WITH BAKER CHOKE AND PUMP IT BACK UP SEVERAL • TIMES, NOT ABLE TO FREE IT UP. 06:15 - 06:50 0.58 DRILL N DFAL 17,091.00 PROD1 PJSM WITH NORDIC DRILLER AND SLB SUPERVISOR FOR POOH. HOLD 400 PSI WHP AND PUMP DOWN KILL LINE WHILE POOH. MONITOR ECD WHILE POOH. STOP AT 16500 FT AND FLOW CHECK FOR 10 MIN,NO FLOW. 06:50 - 09:00 2.17 DRILL N DFAL 17,091.00 PROD1 CONTINUE POOH. HOLD 350-400 PSI WHP WHILE POOH. 09:00 - 11:20 2.33 DRILL N DFAL 17,091.00 PROD1 AT 11400 FT BORE PRESSURE HAS COME DOWN ENOUGH TO OPEN THE EDC. STOP HERE AND OPEN IT. CONTINUE POOH. 11:20 - 12:00 0.67 DRILL N DFAL 17,091.00 PROD1 TAG STRIPPER AND FLOWCHECK WELL. TRIP SHEET IS-8 BBLS. FLOWCHECK IS NEGATIVE. L/D BHA#20. FIND MOTOR HAS COME APART 37 TAT THE AKO HOUSING. 2 MOTOR SHIMS LEFT DOWNHOLE. 12:00 - 13:00 1.00 DRILL N DFAL 17,091.00 PROD1 DISCUSS WITH ODE,DECISION IS MADE TO STOP DRILLING THE W-12A L1 LATERAL AND MOVE ON TO THE NEXT PHASE OF THE WELL PLAN. Printed 2/6/2012 8:10:35AM Vorth America -ALASKA- BP Page 26 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 15:00 2.00 DRILL N DFAL 17,091.00 PROD1 FILL WELL WITH 3 BBLS. CIRC ACROSS THE TOP WHILE BHI REMOVES AND INSPECTS THE CHECK VALVES IN THE UQC. WAIT ON VENTURI TO ARRIVE FROM DEADHORSE. 15:00 - 16:45 1.75 FISH N DFAL 17,091.00 PROD1 I DECISION IS MADE TO RUN A VENTURI TO PICK UP THE LOST SHIMS ALONG WITH THE TIE-IN BHA FOR THE PERF RUN. M/U BHA#21,VENTURI WITH 3.63 FT BARREL, 3"COILTRAK. M/U INJECTOR.TEST QTS. 16:45 - 19:45 3.00 FISH N DFAL 17,091.00 PROD1 RIH WITH VENTURI BHA#21 PUMPING.5 BPM. 15,500'INCREASE PUMP TO 2.3 BPM 4000 PSI. P/U WT PUMPING FULL RATE 41K. RIH TAG AT 16,513 FT. 19:45 - 20:30 0.75 FISH N DFAL 17,091.00 PROD1 PICK UP 10', RIH TAGING AND MOVING 3' DOWNHOLE. EACH TIME STACKING UP TO 4K. TRYING 8 ATTEMPS TO GET BY, PUSHING DOWNHOLE TO 16,524' TALK WITH ODE AND FIELD SUPERINTENDANT, DECISION MADE TO POH AND CHECK VENTURI BASKET. 20:30 - 00:00 3.50 • FISH I N DFAL 17,091.00 PROD1 POH PUMPING 1.6 BPM 2900 PSI. PJSM FOR BHA HANDLING. TAG UP,FLOWCHECK-STATIC. 1/17/2012 00:00 - 01:00 1.00 FISH N DFAL 17,091.00 PROD1 SET BACK INJECTOR. L/D VENTURI BASKET. .5 GALLON OF CEMENT AND FEW SMALL PIECES OF METAL RECOVERED. MULESHOE PACKED OFF WITH CEMENT BEFORE BARREL WAS FULL. M/U BHA#22.VENTURI ADDING ADDITIONAL 5'BARREL, XO, BS, DGS, DPS, EDC, PC,SWP, LQC, UQC, XO,CTC. M/U INJECTOR.TEST QTS. 01:00 - 04:15 3.25 FISH N DFAL 17,091.00 PROD1 RIH WITH BHA#22. INCREASE PUMP TO FULL RATE AT 13,000' 2.4 BPM 4200 PSI. 15,000'P/U WT PUMPING FULL RATE 41K. TAG AT 15,536'. 04:15 - 05:00 0.75 FISH N DFAL 17,091.00 PROD1 PUMPING FULL RATE AT 4000 PSI. P/U AND WORK 2 TIMES WORKING PAST TIGHT SPOT- CONTINUE RIH 13 FPM,TAG AT 16,630'P/U AND WORK SEVERAL TIMES, WORKING DOWN 2-3 FT EACH TIME TO 16,643 FT STACKING UP TO 3.5K. COULDN'T GET ANY FURTHER. PVT=417 BBLS. 05:00 - 06:40 1.67 FISH P PROD1 POH PUMPING 1.5 BPM 2800 PSI.TO 11,000' 06:40 - 07:30 0.83 FISH P PROD1 TURN AROUND AND LOG,FLAG PIPE FOR PERF RUN. TIE IN AT 13,530'.+4.5'CORRECTION. PAINT EOP FLAG AT 13,500' 07:30 - 10:25 2.92 FISH P ' PROD1 'POH,TAG UP. Printed 2/6/2012 8:10:35AM forth America-ALASKA- BP Page 27 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:25 - 10:35 0.17 FISH P ' PROD1 FLOWCHECK WELL-STATIC. PJSM FOR BHA. 10:35 - 12:55 2.33 FISH P PROD1 SET BACK INJECTOR,UD VENTURI BASKET BHA#22. MULE SHOE PACKED OFF WITH CEMENT. BARREL MOSTLY EMPTY. RECOVERED 2 QTS-98%CEMENT 1"IN SIZE. 12:55 - 13:30 0.58 PERFOB P OTHCMP PJSM,PERFORM STEM MAINTENANCE ON POWER PACK AND REEL STAND. 13:30 - 15:20 1.83 PERFOB P OTHCMP PJSM,LOAD PERFGUNS INTO PIPESHED. 15:20 - 16:00 0.67 PERFOB P OTHCMP PJSM FOR RUNNING PERF GUNS WITH TCP. SET INJECTOR ON LEGS,PREP TO RUN PERF GUNS. 16:00 - 18:40 2.67 PERFOB P OTHCMP P/U BHA#23.RUN PERF GUNS @ PER TCP CREW. M/U NOSE,7 JTS 2 7/8"PJ-6 SPF PERF GUNS, E-FIRING HEAD, XO,XO,3 JTS 2 3/8"PH6,XO, PULL DC,5K RUPTURE DISC, XO, BS, LOC, UQC,XO, CTC. P/U AND STAB INJECTOR-QTS PT FAILED. 18:40 - 19:30 0.83 _ PERFOB P ' OTHCMP PJSM,UNSTAB INJECTOR AND REPLACE 0-RING. RETEST QTS,'GOOD TEST. 19:30 - 19:40 0.17 PERFOB P OTHCMP SET PUMP TRIP TO 1500 PSI. RIH TO 344'ATTEMPT TO ESTABLISH CIRCULATION. NO WHP OR MM RETURNS.STOP OPERATIONS AND INSTALL GAUGE ON LUBRICATOR.READING 900 PSI WHP. 19:40 - 21:20 1.67 PERFOB N SFAL 344.00 OTHCMP DISCOVERED 3"CHOKE HARDLINE IN SUBSTRUCTURE FROZE DUE HIGH WIND AND PHASE 2 WEATHER CONDITIONS. PJSM,THAW LINE AND FREE UP CHOKE LINE. 21:20 21:35 0.25 PERFOB P OTHCMP RIH 1000'ESTABLISH CIRC RATES DOWN COIL TO DETRMINE CIRC PRESSURES. .35 BPM=1230 PSI.1.6 BPM=3125 PSI. 21:35 - 00:00 2.42 PERFOB P OTHCMP RIH WITH PERF BHA#23 AT 80 FPM PUMPING.3 BPM 1450 PSI. PASSING THROUGH JEWELRY AT 20 FPM. 1/18/2012 00:00 - 02:00 2.00 PERFOB P OTHCMP RIH WITH PERF BHA#23 AT 80 FPM PUMPING.3 BPM 1450 PSI. PASSING THROUGH JEWELRY AT 20 FPM. RIH TO EOP FLAG AT 13,500'-8.5' CORRECTION RIH TO 14443'-PINHOLE IN COIL AT HORSES HEAD IN REELHOUSE. SMALL PINHOLE,NO SPILL. Printed 2/6/2012 8:10:35AM forth America -ALASKA- BP Page 28 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-OOXXC-C:(3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 03:00 1.00 PERFOB N SFAL 14,443.00 OTHCMP SET REEL BRAKE.ANNOUNCE PINHOLE ON RADIO. SHUT DOWN PUMP-OPEN BAKER CHOKE- BLEEDING PRESSURE OFF COIL. MONITOR WELL TO ENSURE CHECKS ARE HOLDING. NOTIFY FIELD SUPERINTENDANT. PJSM, FOLLOW RP FOR PINHOLE. LOCATE PINHOLE. FLAG PINHOLE WITH YELLOW PAINT.INSTALL BURNETT CLAMP. VAC TRUCK ON LOCATION IF NEEDED. PVT=401 BBLS. 03:00 - 05:30 2.50 PERFOB N SFAL 14,443.00 OTHCMP PUMP DOWN KILL LINE 1.2 BPM HOLDING 200 PSI- BACK PRESSURE WITH CHOKE. SLOWLY POH SPOOLING ONTO REEL COVERING PINHOLE WITH ANOTHER WRAP ON REEL. POH AT 50 FPM.CONTINUE HOLDING 200 PSI BACK PRESSURE WITH CHOKE. 05:30 - 06:30 1.00 PERFOB N SFAL 14,443.00 OTHCMP CREW CHANGE. DISCUSS OPS AND RIG STATUS. MAKE RIG CHECKS AND OUTSIDE ROUNDS. CONTINUE TO POOH. 06:30 - 08:30 2.00 PERFOB N SFAL 14,443.00 OTHCMP AT SURFACE. FLOW CHECK. GET OFF WELL. UNSTAB COIL. LD PH-6. LD SLB PERF GUNS CLOSE SWAB VALVE. 08:30 - 10:00 1.50 PERFOB N SFAL 14,443.00 OTHCMP HOLD PJSM TO DISCUSS REEL SWAP. DISPLACE REEL TO INHIBITED KCL WATER. SPOT SLB NITROGEN TRUCK. 10:00 - 13:30 3.50 PERFOB N SFAL 14,443.00 • OTHCMP HOLD DETAILED PJSM WITH SLB AND NORDIC. PUMP 5 BBLS MEOH. FOLLOW WITH N2. TAKE RTNS TO TIGER TANK. OFF LOAD TIGER TANK. RD SLB N2 EQUIPMENT. 13:30 - 17:00 3.50 PERFOB N SFAL 14,443.00 OTHCMP GET OFF WELL AFTER BLOW DOWN. HOLD DETAILED PJSM TO REVIEW UNSTAB PROCEDURE. RU TUGGER LINE AND SECURE SAME. PULL COIL ACROSS ROOF TO REEL. INSTALL CROSS BAR AND SECURE COIL STUB TO SAME. 17:00 - 18:00 1.00 PERFOB N SFAL 14,443.00 OTHCMP PJSM,R/D REEL HARDLINE 18:00 - 18:30 0.50 PERFOB N SFAL 14,443.00 OTHCMP CREW CHANGE. DISCUSS ONGOING OPS. CHECK EQUIPMENT. 18:30 - 20:30 2.00 PERFOB N SFAL 14,443.00 OTHCMP PJSM FOR REEL SWAP WITH CH2MHILL. SECURE LOCATION,LOWER REEL ONTO TRAILER. PREP TO LOAD NEW REEL INTO REELHOUSE. Printed 2/6/2012 8:10:35AM forth America -ALASKA- BP Page 29 of 29 Operation Summary Report Common Well Name:W-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2011 End Date: X3-00XXC-C: X3-00XXC-C: (3,750,054.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 23:30 3.00 PERFOB N SFAL 14,443.00 OTHCMP R/U SLINGS ON REEL,NEW R I IS Tn WIDE TO FIT THROUGH BOMBAY DOOR, BOMBAY DOOR IS 112.5"WIDE. NEW REEL FLANGE TO FLANGE IS 106" WIDE. WITH SHAKLES INSTALLED ON NEW REEL MAKES IT 114"WIDE. (MAKING SPREADER BAR TO NARROW- PUTTING SLINGS AT ANGLE. OLD REEL THAT WAS REMOVED IS 93.5 INCHES WIDE FROM FLANGE TO FLANGE. NOTIFY ODE AND FIELD SUPERINTENDANT, NORDIC FIELD SUPERINTENDANT. NOTIFY SLB SQC AND FSM AND ENROUTE TO RIG. VFoIFY REEL SIZE AND DETERMINE IT WII L NOT FIT AND POSSIBLE OPTIONS 23:30 - 00:00 0.50 PERFOB N SFAL 14,443.00 OTHCMP WAIT ON ORDERS FROM TOWN. SLB TEAM REVIEWING OPTIONS FOR REEL DILEMMA. R/D REEL CRANE AND SEND REEL BACK TO SLB YARD. 1/19/2012 00:00 - 03:45 3.75 PERFOB N SFAL 14,443.00 OTHCMP WAIT ON ORDERS FROM TOWN. SLB TEAM REVIEWING OPTIONS FOR REEL DILEMMA. A 15,900'REEL IS BEING LOADED ONTO TRAILER IN DEADHORSE. WHILE WAITING ON DECISION- SERVICE CHOKE MANIFOLD VALVES,CLEAN IN REELHOUSE. ORGANIZE PIPESHED AND RIG FLOOR. 03:45 04:15 0.50 BOPSUB P OTHCMP PJSM, PERFORM BI-WEEKLY BOPE FUNCTION TEST. OPERATE FROM ALL STATIONS. 04:15 - 06:00 1.75 PERFOB N I SFAL 114,443.00 OTHCMP WAIT ON ORDERS FROM TOWN. 06:00 - 06:30 0.50 PERFOB N SFAL 14,443.00 OTHCMP CREW CHANGE. DISCUSS OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS. MAKE OUTSIDE ROUNDS. CONTINUE TO WAIT ON PLAN FORWARD. 06:30 - 09:30 3.00 PERFOB N SFAL 14,443.00 OTHCMP CONTINUE TO WAIT ON PLAN FORWARD. MAKE CALLS TO PREP FOR RIG MOVE DISCUSS DS 18-5 STATUS WITL WELLS GROUP. CALL FOR TRAILERS. ARRANGE FOR ROUTE DRIVE WITH RIG MOVE COORDINATOR. Printed 2/6/2012 8:10:34AM North America -ALASKA- BP Page 1 of 1 i Operation Summary Report Common Well Name:W-12 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/6/2012 End Date: X3-00XXC-C: (323,778.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: NORDIC 2 Spud Date/Time:9/17/1998 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292202300 Active Datum:W-12 @91.07ft(above Mean Sea Level) Date i From-To Hrs Task I Code NPT I NPT Depth Phase Description of Operations (hr) (ft) 1/19/2012 09:30 - 13:30 4.00 BOPSUB P ' POST CALL LRS TO FREEZE PROTECT WELL. WAIT ON LRS. 13:30 - 16:30 3.00 BOPSUR P POST PJSM,M/U LITTLE RED PUMPER. HEAT DIESEL, R/U TO WING VALVE ON TREE. PT WING VALVE AND NIGHT CAP. CHART SAME. PUMP 43 BBLS DOWN TUBING, FREEZE PROTECT WELL TO 2500' MAX PRESSURE 1950 PSI AT 1 BPM. 16:30 - 18:00 1.50 BOPSUR P POST PJSM WTH WOA GREASE CREW. V _ GREASE TREE VALVES. 18:00 - 18:30 0.50 BOPSUR P i POST CREW CHANGE.DISCUSS ONGOING OPS. I CHECK RIG EQUIPMENT. F 18:30 - 19:30 1.00 BOPSUR P POST WAIT ON VALVE CREW. I _ R/D EQUIPMENT AND PREP FOR RIG MOVE. 19:30 - 21:00 1.50 BOPSUR P POST PJSM WITH VALVE CREW. TEST NIGHT CAP BEFORE OPENING WELL WITH METHONAL.. CHART SAME. OPEN MASTER AND SWAB AGAINST CLOSED CHOKE. ' - NO WHP.REMOVE NIGHT CAP 21:00 - 21:30 0.50 BOPSUR P POST SET BPV WITH T BAR.CLOSE MASTER AND SWAB VALVE. • 21:30 - 22:15 0.75 BOPSUR P POST M/U NIGHT CAP, PT TO 250/3500 PSI- AGAINST BARRIERS WITH METHONAL. - CHART RECORD TEST. 22:15 - 00:00 1.75 BOPSUR P POST PJSM,BLOWDOWN KILL AND CHOKE LINES. / LOTO ACCUMULATOR.OPEN RAM DOORS ✓ AND INSPECT RAM COMPONETS. PREP FOR RIG MOVE,LOAD OUT TRAILERS. 1/20/2012 00:00 - 02:00 2.00 BOPSUR P POST INSPECT BOP RAMS. C/O BLADE SEALS AND TOP SEALS ON BLIND SHEAR RAMS. C/O 1 TOP SEAL AND 1 PACKER ELEMENT ON UPPER COMB! RAMS. C/O DOOR SEALS. RE-INSTALL RAMS. ' � LOAD OUT TRAILERS AND PREP FOR RIG MOVE. 02:00 - 03:40 1.67 BOPSUR P ' POST PJSM, N/D BOPE. R/D OUTSIDE EQUIPMENT. WARMUP RIG MOVE SYSTEM. _ -- 03:40 -- 05:00 1.33 BOPSUR P POST N/U TREE CAP. PT TREE CAP TO 250/3500 PSI WITH DIESEL. CHART RECORD TEST. 05:00 - 06:00 1.00 DEMOB P POST R/D OUTSIDE EQUIPMENT. _ PREP TO PULL OFF WELL. 06:00 - 06:30 0.50 DEMOB P POST CREW CHANGE. DISCUSS OPS AND RIG STATUS. MAKE RIG CHECKS AND OUTSIDE ROUNDS. CONTINUE TO PREP FOR MOVE. 06:30 - 12:00 5.50 DEMOB P POST CONTINUE TO RD EQUIPMENT FOR MOVE. i 1 FUEL VEHICES. WARM MOVING SYSTEM. ' RELEASE RIG FROM W-12AL1. Printed 2/6/2012 8:11:04AM W-12AL1 & AL2 Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L(DOA) Sent: Tuesday, January 24, 2012 8:22 AM To: 'Ross, Matthew' Subject: RE: W-12AL1 &AL2 (211-118) Matt, After more discussion and since you are not planning on reentering the lateral W-12AL1 and it is capable of flow, the Operational shutdown Sundry request is not needed. Simply submit a 10-407 as you would a normal well with an attached email explaining what happened to end up short and not cased off. So in summary I will be returning both lateral sundries as not needed. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Schwartz, Guy L(DOA) Sent: Thursday,January 19, 2012 8:35 AM To: 'Ross, Matthew' Subject:RE: W-12AL1&AL2(211-118) Ross, Per our conversation please submit a 403 sundry with an operational shutdown for the lateral AL1. Hold off on a 10-404 till you have a better idea of how long it will be till you get back on the well to finish up the lateral. The motherbore can still be perfed and put on production as you see fit. If it looks like longer than 60 days till you restart work then submit a 10-404 report on the drilling work to date. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Ross, Matthew [mailto:rossmo@BP.com] Sent: Thursday,January 19, 2012 7:29 AM To: Schwartz, Guy L(DOA) Subject: W-12AL1&AL2 Guy; We do not have the required equipment, specifically a coiled tubing reel with sufficient length to drill the second lateral, AL2 on W-12. In the planning phase of the well, we did have two coiled tubing reels specifically built to meet the extended length required to drill both laterals. However, due to equipment failure for the first reel &human error for the second reel we do not have the required equipment to start drilling AL2. We do plan to return to W-12 and drill the second lateral. This process to acquire two more reels of sufficient length from the manufacture will require time. I need guidance on how to leave W-12 (operational shutdown or otherwise). Many thanks. ALI L - -raw - NoT ca-TEra Matt Ross 980-0552 y4_ /•04i. /L1/24/2012 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION IVSD / APPLICATION FOR SUNDRY APPROVAL JAN �� 20 AAC 25.280 1. Type of Request: o,ll , 8 CO . 40111Minian ❑Abandon 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well ❑Change Approved'Pro ra ❑Suspend 0 Plug Perforations 0 Perforate 0 Pull Tubing 0 Time Extension AnC" crf' • ®Operations Shutdown 0 Re-Enter Suspended Well 0 Stimulate 0 Alter Casing 0 Other / 2. Operator Name: 4. Current Well Class: 5. PeeVt/To Drill Number BP Exploration(Alaska)Inc. ® Development • 0 Exploratory 2 '-118 3. Address: 0 Service 0 Stratigraphic 6. PI Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 50-029-22023-60-00 • 7. If perforating,closest approach in pool(s)opened by this operation to nearest 8. Well Name d Number: property line where ownership or landownership changes: PBU W-12AL1 Spacing Exception Required? 0 Yes ®No 9. Property Designation: 10.Field/Pool(s): ADL 028263&047452 Prudhq Bay Field/Prudhoe Bay Oil Pool • 11. PRESENT WELL CONDITION SUMM Y Junk(measured): Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD(ft): Effective Depth TVD(ft): Plugs(measured): ( ) 17096' 5050' 17096' /900' None None Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" 110' 110' Surface 2987' 13-3/8" 3027' / 2683' 4930 2270 Intermediate 12869' 9-5/8" 129 8434' 6870 4760 Production Liner 830' 7" 1274 - 13577' 8344'-8802' 7240 5410 Liner 7478' 4-1/2" 1 0'-16 64' 8724'-8932' 8430 7500 Perforation Depth MD(ft): Perforation Dept IP.0 \\ Tubing Size: Tubing Grade: Tubing MD(ft): None for W 12AL1,Open Hole 4-1/2", 12.6# L-80 13411' P \ ' Packers andSSSV 13355'/8698' Packers andType: 7"x 4 1/2Baker'S aac ac ers SSSV " �= ers MD(ft)and TVD(ft): 12. Attachments: 13.Well Class after proposed work: ® Description Summary of•ropo =I 0 BOP Sketch 0 Detailed Operations Pr,g m 0 Exploratory ®Development 0 Service 14. Estimated Date for q 15. Well Status after proposed work: Commencing Operations: I mediately ® Oil • 0 WINJ 0 WDSPL 0 Plugged 16. Verbal Approval: Date: 1/19/2012 0 Gas 0 GINJ 0 GSTOR 0 Abandoned Commission Representative: Guy L.Schwartz ❑WAG 0 SPLUG ❑Suspended 17. I hereby certify that the foregoi is true and correct to the best of my knowledge. Contact Matt Ross,564-5782 Printed Name MI,'1;i1,1., , filv Title Engineering Team Leader / Prepared By Name/Number: Signature 7/( Phone 564-4711 Date ( /OA/ Terrie Hubble,564-4628 Commission Use Only Condition approval: otify Commission so that a representative may witness i 7,' Sundry Number: 51 0.2.,1 ❑ Plug Integrity FA BOP Test 0 Mechanical Integrity Test 0 Location Clearance Other: Subsequ, t Form Required: /0-LICY-1 C w c I "`(.4„. 6v 'I-73j R M$ JAN 2 4APPROVED BY Approve• - COMMISSIONER THE COMMISSION Date Form 10-403 Revised 01/2010 2012gL- Q 2_0 R I G i f� A L I /� �Submit In Duplicate, i t TREE= 4-1/16"FMC 12A L 1 & L2 SA. NOTES: WELL ANGLE-70°@ 13768'*** 4WELLHEAD= FMC PERFS @ 15700 15940' POSSIBLY SQZ(05/14/07) ACTUATOR= BAKER &MILLED OUT(02/24/09)-SEE AWGRS*** KB.ELEV= 83.67' Operation Shutdown BF.ELEV= 54.37' KOP= 880' Max Angle= 98 @ 14783' Datum MD= 13782' ' 2159' —14-1/2"HES X NIP,ID=3.813" Datum ND= 8800'SS GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 13-3/8"CSG,68#,L-80, ID=12.415" — 3079' 7 3873 3198 IP 52 MMG DOME RK 16 09/17/07 6 5965 4409 55 MMG DMY RK 0 11/22/98 5 7408 5226'56 MMG DOME RK 16 09/17/07 4 8735 5989 F 54 MMG DMY RK 0 11/22/98 Minimum ID = 3.80" @ 13399' 3 10062 678952 MMG DOME RK 16 09/17/07 4-1/2" HES XN NIPPLE milled out 2 11390 7597'57 MMG SO RK 22 09/17/07 1 12471 8197'59 MMG DMY RK 0 03/22/07 12747' —TOP OF BKR TIEBACK SLV, ID=7.50" 12754' —19-5/8"X 7"BKR ZXP PKR,ID=6.188" 12760' —9-5/8"X 7"BKR HMC HGR,ID=6.188" TOP OF CEMENT 12710' Ezsv -� 13070.] 9-5/8"CSG,47#,NT-80S, ID=8.681" —I 14075' \ = 9-5/8"MILLOUT WINDOW(W-12A) 12905'- 12965' PERFORATION SUMMARY —I 13411' I— 4-1/2"TBG, 12.6#, L-80, .0152 bpf,ID=3.958" REF LOG: BHI CCL/GR ON 1/10/12 ' r 13344' F—4-1/2"HES X NIP, ID=3.813" A NGLE AT TOP PERF: 93 @ 16775' Note:Refer to Production DB for historical perf data g 13355' H7"X 4-1/2"BKR S-3 PKR, ID=3.875" SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 4 16775- 17525 01/10/12 I I 13379' I—4-1/2"HES X NIP,ID=3.813" I — 4-1/2"HES XN NIP, ID=3.80"(milled out) 13410' I-- 7"X 4-1/2"BKR TIEBACK SLV,ID5.25" Z 13411' I—4-1/2"WLEG,ID=3.958" 13423' —ELMD TT LOGGED 07/30/99 13416' I—7"X 5"BKR ZXP LTP w/HGR, ID=4.458" *SEE SAFETY NOTE FOR DETA ILS 7"LNR,29#,L-80,MOD, .0371 bpf, ID=6.184" — 13577' 14574' —4-1/2"MARKER JT 15609' —4-1/2"MARKER JT p I L1: 16774' - 17096' 111 Cement Milled Out to Full Liner ID Drift I Re-perforate 750 ft Zn 4 Mill cement to 19,094' 4-1/2"LNR, 12.6#,L-80,NSCT, .0152 bpf, ID=3.958" — 20888' •�••4 20800' PBTD DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 ORIGINAL COMPLETION 02/24/09 RLM/PJC MILL CMT PLUG WELL: W-12A 11/22/98 JJONES SIDETRACK NABORS 18E 03/01/09 PJC DRAWING CORRECTIONS PERMIT No: 211-118 05/03/07 CJA/PJC SET CBP 01/19/11 MR CTD SIDETRACK API No: 50-029-22023-01 05/13/07 JGM/PJC CEMENT PLUG SEC 21,T11 N, R12E, 1542'SNL&1196'WEL 09/17/07 DAV/PJC GLV C/O 01/14/09 CJA/SV MILL CMT PLUG(12/18/08) BP Exploration(Alaska) W-12AL1 & AL2 Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) Sent: Thursday, January 19, 2012 8:35 AM To: Ross, Matthew Subject: RE: W-12AL1 &AL2 (211-118) Ross, Per our conversation please submit a 403 sundry with an operational shutdown for the lateral AL1. Hold off on a 10-404 till you have a better idea of how long it will be till you get back on the well to finish up the lateral. The motherbore can still be perfed and put on production as you see fit. If it looks like longer than 60 days till you restart work then submit a 10-404 report on the drilling work to date. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Ross, Matthew [mailto:rossmo@BP.com] Sent: Thursday, January 19, 2012 7:29 AM To: Schwartz, Guy L (DOA) Subject: W-12AL1 &AL2 Guy; We do not have the required equipment, specifically a coiled tubing reel with sufficient length to drill the second lateral, AL2 on W-12. In the planning phase of the well, we did have two coiled tubing reels specifically built to meet the extended length required to drill both laterals. However, due to equipment failure for the first reel & human error for the second reel we do not have the required equipment to start drilling AL2. We do plan to return to W-12 and drill the second lateral. This process to acquire two more reels of sufficient length from the manufacture will require time. I need guidance on how to leave W-12 (operational shutdown or otherwise). Many thanks. Matt Ross 980-0552 2/24/2012 Hubble, Terrie L From: Ross, Matthew Sent: Thursday, January 19, 2012 4:31 PM To: Hubble, Terrie L Subject: W-12 Operational Shutdown r` A We operationally shutdown on W-12 for the following reasons. We do not have the required equipment, specifically a coiled tubing reel with sufficient length to drill the second lateral, AL2 on W-12. In the planning phase of the well, we did have two coiled tubing reels specifically built to meet the extended length required to drill both laterals. However, due to equipment failure for the first reel & human error involving lack of comrgunication for the second reel we i do not have the required equipment to complete the tasks of adding 200' of perforatione'nor to start drilling the AL2 portion of W-12. We do plan to return to W-12 and drill the second lateral. This process to acquire one more reel of sufficient length from the manufacture will require time - 4 months. It will take approximately 3 to 4 weeks to respool our current reel that would not fit into the rig, this involves acquiring a spooling jig from Tenaris in Texas &having it shipped to Schlumberger's yard in Deadhorse. There are numerous issues in construction &transporting due to the shear size of the reels.To transport the reel from Tenaris's yard in Texas it involves specially built floats (lowboy trailer). All reels this large in size involve transporting it on land to Seattle then on a barge to Whittier. In 2009 the Whittier tunnel had a 188" height limit requirement on the reel spool. Suffice to say that only a 188" OD reel spool would fit on a specially built lowboy trailer going through the tunnel. Ever since then our coiled tubing reels have been limited to 96"wide by 188" in height. Both Nordic CTD rigs are limited to 96" in width & 188" in height for the acceptance of the reel spool size. Our standard size of reel is 180" We ordered the reel for W-12 in 2011. However, in late 2010 the Whittier tunnel was further limited by height restrictions thereby reducing our effective reel spool height to 180". Tenaris was aware of the height restrictions during the transport of the reel as they are required to buy the needed road permits for the transportation of the reel. This was not communicated to Schlumberger. When Schlumberger ordered a 25,000' coiled tubing spool from Tenaris and in order to compensate for the reduction in height, a increase in width was the only option. Again, this was not communicated to Schlumberger. Tenaris sent a spool measuring 105"wide by 177" in height that had 25000' of coiled tubing on it. The 105" wide coiled tubing spool will not fit inside the rig. Schlumberger is looking into bypassing Whittier&having the reels shipped to Anchorage or Valdez thus allowing - the reels to be 188" in height thereby avoiding the issue on our extended reach CTD wells. Matt Ross 1 Correct name for abandoned lateral on W-12 Page 1 of 1 r Schwartz, Guy L (DOA) From: Ross, Matthew[rossmo@BP.com] Sent: Tuesday, January 17, 2012 12:46 PM To: Schwartz, Guy L (DOA) Cc: Hubble, Terrie L Subject: RE: Correct name for abandoned lateral on W-12 (PTD 211-118) Guy; Per our phone conversation we will leave it as AL1, it will be a barefoot completion as there may be slight production from it for awhile. Thanks. From: Schwartz, Guy L (DOA) [mailto:guy.schwartz@alaska.gov] Sent: Tuesday, January 17, 2012 12:31 PM To: Ross, Matthew Subject: RE: Correct name for abandoned lateral on W-12 Are you referring to W-21?? I don't have a W-12 in the cue. 60 Guy Schwartz ` LI ` Senior Petroleum Engineer AOGCC /./7/L 793-1226 (office) 444-3433 (cell) From: Ross, Matthew [mailto:rossmo@BP.com] Sent: Tuesday, January 17, 2012 10:39 AM To: Schwartz, Guy L (DOA) Subject: Correct name for abandoned lateral on W-12 Guy; Due to geological & hole concerns we have concluded that AL1 will not be economically viable. After drilling 300 feet of open hole we have ceased drilling W-12AL1. We do not plan to complete this section of open hole and will leave it as a barefoot completion. What paper work is required to complete this task? Do we leave the naming convention as is & continue drilling the second lateral? Or do we rename the AL1 lateral to PB1 & rename the second lateral to AL1? Thank you. 1/17/2012 Siftial [E SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMIISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU W-12AL1 BP Exploration (Alaska), Inc. Permit No: 211-118 Surface Location: 1542' FNL, 1196' FEL, SEC. 21, T11N, R12E, UM Bottomhole Location: 4216' FNL, 2018' FEL, SEC. 33, T11N, R12E, UM Dear Mr. McMullen: Enclosed is the approved application for permit to re-drill the above referenced development well. The permit is for a new wellbore segment of existing well PBU W-12A, Permit No 198- 182, API 50-029-22023-01. Production should continue to be reported as a function of the original API number stated above. 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. Jo, *el/ om I issioner DATED this tie-day of September, 2011. cc: Department of Fish & Game, Habitat Section w/o end. (via e-mail) Department of Environmental Conservation w/o end. (via e-mail) STATE OF ALASKA ALAS )IL AND GAS CONSERVATION COMM ON RECEIVED' PERMIT TO DRILL SEP 01 2011 4& 20 AAC 25.005 9 r-// 1 a.Type of work: 1 b.Proposed Well Class: ® � �'1+.�,l Development Oil 0 Service-Winj 0 Single Zone fenimSsio, ❑ Drill ®Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed Galldrates ❑ Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp hiffitas 2. Operator Name: 5.Bond: IN Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU W-12AL1 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 _ MD 17825' ND 8837'ss Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: ADL 028263&047452 1542'FNL, 1196'FEL, SEC.21,T11N, R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 658'FNL,2112'FEL, SEC.33,T11N, R12E, UM November 15,2011 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 4216'FNL,2018'FEL, SEC.33,T11N, R12E, UM 2560 2,823' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 83.67' feet 15.Distance to Nearest Well Open Surface: x- 612049 y-5958715 Zone- ASP4 GL Elevation above MSL: 53.17' feet to Same Pool: 2718' 16.Deviated Wells: Kickoff Depth: 16775' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 98 degrees Downhole: 3373 Surface: 2493 _ 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight , Grade Coupling. Length MD ND MD TVD (including stage data) 4-1/4" 2-7/8" 6.5# _ L-80 STL 1060' 16765' 8848'ss 17825' 8837'ss Uncemented Slotted Liner 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth ND(ft): Junk(measured): 20888' 9049' 15850' 8987' 15850' None Casing Length Size Cement Volume MD ND Conductor/Structural Surface 110' 20" 110' 110' Intermediate 2987' 13-3/8" 4338 sx Coldset II 3027' 2683' Production 12869' 9-5/8" 1211 sx Class'G' 12905' 8434' Liner 830' 7" 151 sx Class'G' 12747'-13577' 8344'-8802' Liner 7478' 4-1/2" 728 sx Class'G' 13410'-20888' 8724'-9049' Perforation Depth MD(ft): All Perf's Squeezed Off Perforation Depth ND(ft): N/A 20.Attachments: 0 Property Plat ®BOP Sketch 0 Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis 0 Diverter Sketch 0 Seabed Report 0 Drilling Fluid Program 0 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the is true a • correct. Contact Eli Vazquez,564-5918 Printed Name J../ MI r.- Title Engineering Team Leader �pr ' Prepared By Name/Number Signature „ Phone 564-4711 Date 7(r /I( Terrie Hubble,564-4628 Signature / Commission Use Only Permit To Di ' API Number: Permit Ap r val a See cover letter for Number: — .19///27 50-029-22023-60-00 l � 11 other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales: bel -k 3 5-00 s 13oP -r;".5 Samples Req'd: 0/Yes Et �/ Other: p .� F C -�llb No Mud Log Req'd: 0 Yes LSD No ,-Z S-00 los, A nh. S c H2S Measures: RYes 0 No a irectional Survey Req'd: I 'Yes 0 No ill/��/�r// APPROVED BY THE COMMISSION Date ! / ,COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from the date • r• (20 AAC 25 105(g)) Submit In Duplicate , 71,. �.9•// ORIGI A >/ 7` - , To: Alaska Oil &Gas Conservation Commission From: Eli Vazquez CTD Engineer 0 bP Date: August 31st, 2011 Re: W-12A L1 &W-12A L2 PTD Request Approval is requested for a permit to drill a CTD sidetrack from well W-12A. Well W-12A was originally completed in April 1990 and sidetracked in December 1998. Water broke through in this well in 2002 and it was ,identified to be coming from a fault in the heel of the well where the liner had been eroded due to the water. In C°"`P2007 bridge plug was set at 15,050' and to serve as base for the cement squeeze job to abandon the perforations above this depth and liner holes. The cement squeezed into the liner holes and perfs which shut off the water but the plug failed and the cement got below the bridge plug. filling the liner with cement The well is in sound mechanical condition. It passed an MIT-IA to 3000 psi and MIT-OA to 2000 psi (August 2011). The August 2011 Caliper shows the 4'/2' tubing to be in good to poor condition with respect to corrosive damage, with a maximum penetration of 44% recorded in area of corrosion in joint at 5,504' MD and a maximum cross sectional wall loss of 20% recorded at 5,979' MD. The calliper also shows heavy deposits from 10,859' MD to 11,393' MD restricting the I.D. to a minimum of 3.11 in at 11,050' MD. Service coiled tubing units have successfully milled the plug and cement down to 15,850' and where weight on bit became a problem and no further milling was possible. There is no flow from perforations that have been exposed after milling which indicates the failed cement job also squeezed the perforations below the bridge plug. The proposed CTD 4( ,Sidetrack will mill the existing cement to 20.450. recomplete the well and drill two laterals. Combined, the two laterals will provide access to -2000' of upper Zn 4 oil column and add significant rate. The perforations will restore another 2000' of upper Zn 4 production._ The multilateral sidetrack, W-12A L1 &W-12A L2, is scheduled to be drilled by Nordic 2 starting on December 1st 2011. The pre rig includes milling the XN Nipple and deposits inside 4'/z"tubing. The Nordic 2 drilling rig will then move on and mill the existing cement down to 20,450' md, re-perforate 2000' of Zn 4 in parent W-12A well and drill two laterals via mechanical whipstocks that will be retrieved once the 2-7/8" slotted liners have been run. The following describes the planned work. A schematic diagram of the proposed sidetrack is attached for reference. CTD Sidetrack Summary Pre-CT Rig Work: The pre CTD work is planned to begin November 15th, 2011. 1. W Check tubing hanger LDS. 2. W PPPOT-T to 5000 psi 3. C Mill heavy deposits from 10,859' MD- 11,393' MD and XN Nipple at 11,399' MD. %/ 4. C Drift for retrievable whipstock to-14,000' MD.✓ ? oK 5. V PT tree (MV,SV,WV) 6. D Bleed wellhead pressures down to zero. 7. D Bleed production flow lines and GL lines down to zero and blind flange. 8. 0 Remove wellhouse, level pad. ✓ Rig Sidetrack Operations: (Scheduled to begin on December 1st, 2011 using Nordic Rig 2) 1. MIRU Nordic Rig 2. 2. NU 7-1/16" CT Drilling BOPE and test. 35oo psd i:�� %2 3. Mill -4600 ft of cement inside 4 ' liner. ('� 4.0 Perforate 2000' of Zn 4 in parent W-12A. T'cP 5. Run caliper for proper whipstock setting. 6. Set retrievable 4'/2'whipstock at 16,755' md. 7. Mill 3.80" single string high side window in 4W12.6#L-80 production liner from retrievable whipstock. ,, 8. Drill 40 DLS turn and 12 DLS lateral with 4W bi-center bit to 17,825' MD. • -j 9. Run 2-7/8" slotted liner and drop 10 ft outside window. • 10. Set 2nd retrievable 4'/2"whipstock at 15,740' md. r .�__..,.. 11. Mill 3.80" single string high side window in 4W12.6#L-80 production liner from retrievable whipstock. 12. Drill 40 DLS turn and 12 DLS lateral with 4W bi-center bit to 17,005' MD. 13. Run 2-7/8"slotted liner and drop 10 ft outside window. t) 14. Retrieve both whipstocks. 15. Freeze protect well to 2200' TVD. 16. Set BPV. ND 7-1/16" BOPE stack. Freeze protect tree and PT tree cap to 3500 psi. 17. RDMO Nordic 2. /1I, Mud Program: (` • Well kill: 8.6 ppg seawater/ brine. • Milling/drilling: 8.6 ppg Geo-VIS for milling window and drilling. Disposal: • All Class II drilling and completion fluids and all other Class II wastes will go to Grind & Inject at DS 4. • All Class I wastes will go to Pad 3 for disposal. Hole sizes: 4W hole: 16,755' and- 17,830' and (W-12A L1) ' 4W hole: 15,740' and- 17,005' and (W-12A L2) Casing Program: Slotted Completion • 2-7/8", L-80 6.5 lb/ft STL slotted liner, W-12A L1 • 16,765' and- 17,825' and • 2-7/8", L-80 6.5 lb/ft STL slotted liner, W-12A L2 15,750' and- 17,005' and • Not cemented. Well Control: • BOP diagram is attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3500 psi. • The annular preventer will be tested to 250 psi and 3000 psi. Directional • See attached directional plan. Maximum planned hole angle for W-12A L1 is 98° at 16,795' and and 95° at 16,190' and for W-12A L2. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property-2,823' for W-12A L1 and 3,117' for W-12A L2. • Distance to nearest well within pool -2,718' from W-12A L1 to W-10A and 1,490' from W-12A L2 to W • - 10A. Anti-Collision • W-12A L1 o None • W-12A L2 o None Logging • MWD directional, Gamma Ray and Resistivity logs will be run over all of the open hole section while drilling. • Hazards • Most recent H2S level on W-12A is 15 ppm recorded on September 10, 2011. • The maximum recorded H2S level on W Pad is 60 ppm on well W-01 (August 16th, 2005). • No fault crossing is expected for both laterals. • The lost circulation risk in the W-12A L1 & L2 is medium to low due to uncertainty of potential losses at unmapped faults / fractures. Well trajectory designed to avoid crossing any mapped faults and possible fault damage zones for both laterals. Reservoir Pressure • The reservoir pressure is estimated to be: o W-12A L1: 3,373 psi at 8,800 TVDss(7.37 ppq equivalent) based on offset pressures. o W-12A L2: 3,441 psi at 8,800 TVDss(7.52 ppg equivalent) based on offset pressures. • Max expected surface pressure with gas(0.10 psi/ft) to surface is: o W-12A L1: 2.493 psi. . �F o W-12A L2: 2,561 psi. Eli Vazquez Coiled Tubing Drilling Engineer CC: Well File Sondra Stewman/Elizabeth Barker TREE= 4-1/16"FMC SA OTES: WELL ANGLE-70°@ 13768'*** WELLHEAD= FMC 2 A PERFS @ 15700'-15940'POSSIBLY SQZ(05/14/07) ACTUATOR= BAKERVV &MILLED OUT(02/24/09)-SEE AWGRS*** KB.ELEV= 83.67' BF.ELEV= 54.37' KOP= 880' Max Angle= 98 @ 14783' 2159' I—4-1/2"HES X NIP,ID=3.813" Datum MD= 13782' I Datum ND= 8800'SS GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 1 7 3873 31981'52 MMG DOME RK 16 09/17/07 13-3/8"CSG,68#,L-80, ID=12.415" — 3079' 6 5965 4409'55 MMG DMY RK 0 11/22/98 © 5 7408 5226 r 56 MMG DOME RK 16 09/17/07 4 8735 5989'54 MMG DMY RK 0 11/22/98 Minimum ID = 3.725" @ 13399' 3 10062 6789 r 52 MMG DOME RK 16 09/17/07 4-1/2" HES XN NIPPLE 2 11390 7597 r 57 MMG SO RK 22 09/17/07 1 12471 8197 r 59 MMG DMY RK 0 03/22/07 1 12747' —TOP OF BKR TIEBACK SLV, ID=7.50" l J12754' —19-5/8"X 7"BKR ZXP PKR, ID=6.188" TOP OF CEMENT' �� 12760' H9-5/8"X 7"BKR HMC HGR, ID=6.188" 12710' Ezsv — 13070'J 9-5/8"CSG,47#,NT-80S,ID=8.681" —I 14075' N9-5/8"MILLOUT WINDOW(W-12A) 12905'-12965' PERFORATION SUMMARY 13411' H 4-1/2"TBG, 12.6#,L-80,.0152 bpf, ID=3.958" I REF LOG:ANA DRILL ME RESISTIVITY ON 10/04/98 1 I 13344' H4-1/2"HES X NIP, ID=3.813" ANGLE AT TOP PERF: 83 @ 14255' Note:Refer to Production DB for historical perf data g Z 13355' H7"X 4-1/2"BKR S-3 PKR,ID=3.875" SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 4 14255-14275 S 05/13/07 ' I I 13379' H4-1/2"HES X NIP,ID=3.813" 2-7/8" 4 14950-14970 S 05/13/07 ' ' 13399' H4-1/2"HES XN NIP,ID=3.725" 2-7/8" 4 "15700-15740 C/S? 05/04/02 13410' H 7"X 4-1/2"BKR TIEBACK SLV, ID5.25" 2-7/8" 4 *15780-15820 C/S? 05/03/02 2-7/8" 4 *15865-15885 C/S? 05/03/02 ' • 13411' —4-1/2"WLEG, ID=3.958" 2-7/8" 4 *15920-15940 C/S? 04/29/02 13423' ELMD TT LOGGED 07/30/99 2-3/4" 4 16734-17516 C 11/17/98 13416' 7"X 5"BKR ZXP LTP w/HGR,ID=4.458" I 2-3/4" 4 19550-20450 C 11/17/98 *SEE SAFETY NOTE FOR DETAILS , 7"LNR,29#,L-80,MOD,.0371 bpf,ID=6.184" — 13577' 14574' H4-1/2"MARKER JT ••� ♦♦ • 15609' H4-1/2"MARKER JT �•••• '� ? Top of Cement(2/20/09), Bottom Unknown 15850' 4, 41. 114, m2.,i H 20800' PBTD 4-1/2"LNR,12.6#,L-80,NSCT, .0152 bpf,ID=3.958" --I 20888' ••1 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 ORIGINAL COMPLETION 02/24/09 RLM/PJC MILL CMT PLUG WELL: W-12A 11/22/98 JJONES SIDETRACK NABORS 18E 03/01/09 PJC DRAWING CORRECTIONS I'tHMIT No: 1981820 05/03/07 CJA/PJC SET CBP 08/29/11 EV W-12 API No: 50-029-22023-01 05/13/07 JGM/PJC CEMENT PLUG - SEC 21,T11 N,R12E, 1542'SNL&1196'WEL 09/17/07 DAV/PJC GLV C/O 01/14/09 CJA/SV MILL CMT PLUG(12/18/08) BP Exploration(Alaska) TREE= 4-1/16"FMC ETY NOTES: WELL ANGLE-70°@ 13768'*** WELLHEAD= FMC - (PERFS @ 15700'-15940'POSSIBLY SQZ(05/14/07) ACTUATOR= BAKER &MILLED OUT(02/24/09)-SEEAWGRS*** KB.ELEV= 83.67' Proposed Pre CTD BF.ELEV= 54.37' KOP= 880' Max Angle= 98 @ 14783' Datum MD= 13782' I I 2159' —14-1/2"HES X NIP,ID=3.813" Datum TVD= 8800'SS GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 7 3873 3198152 MMG DOME RK 16 09/17/07 13-3/8"CSG,68#,L-80,ID=12.415" —{ 3079' 6 5965 4409'55 MMG DMY RK 0 11/22/98 5 7408 5226 F 56 MMG DOME RK 16 09/17/07 11 4 8735 5989'54 MMD DMY RK 0 11/22/98 Minimum ID = 3.80" @ 13399' 3 10062 6789 r 52 MMG DOME RK 16 09/17/07 4-1/2" HES XN NIPPLE milled out 2 11390 7597 r 57 MMG SO RK 22 09/17/07 1 12471 8197'59 MMG DMY RK 0 03/22/07 j1 12747' —TOP OF BKR TIEBACK SLV, ID=7.50" l 12754' —9-5/8"X 7"BKR ZXP PKR, ID=6.188" 12760' —19-5/8"X 7"BKR HMC HGR, ID=6.188" TOP OF CEMENT 12710' EZSV — 13070'1 9-5/8"CSG,47#,NT-80S,ID=8.681" -f 14075' \ 9-5/8"MILLOUT WINDOW(W-12A) 12905'-12965' PERFORATION SUMMARY 13411' H4-1/2"TBG, 12.6#,L-80,.0152 bpf, ID=3.958" REF LOG:ANADRILL ME RESISTIVITY ON 10/04/98 , t 13344' H4-1/2"HES X NIP,ID=3.813" ANGLE ATTOPPERF: 83@ 14255' Note:Refer to Production DB for historical perf data Z Z 13355' H7"X 4-1/2"BKR S-3 PKR, ID=3.875" J SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 4 14255- 14275 S 05/13/07 I I 13379' H4-112"HES X NIP,ID=3.813" I 2-7/8" 4 14950- 14970 S 05/13/07 ' ' i 3399 H 2 HLS AN NV. :6. 3.80"(milled out) V 2-7/8" 4 *15700- 15740 C/S? 05/04/02 13410' H 7"X 4-112"BKR TIEBACK SLV, 105.25" 2-7/8" 4 *15780- 15820 C/S? 05/03/02 / 2-7/8" 4 *15865- 15885 C/S? 05/03/02 13411' 4-1/2"WLEG,ID=3.958" 2-7/8" 4 *15920- 15940 C/S? 04/29/02 ; 13423' ELMD TT LOGGED 07/30/99 2-3/4" 4 16734- 17516 C 11/17/98 • 13416' 7"X 5"BKR ZXP LTP w/HGR,I0=4.458" 2-3/4" 4 19550-20450 C 11/17/98 *SEE SAFETY NOTE FOR DETAILS , 7"LNR,29#,L-80,MOD. .0371 bpf, ID=6.184" H 13577' •-111 14574' H4-112"MARKER JT j • •j•• 1 ••1 /••••1 15609' 4-1/2"MARKER JT ►�•�•� ••1 Top of Cement(2/20/09), Bottom Unknown 15850' ••••i ►•4.. ❖4.. ►•.•4 -1 20800' PBTD 4-1/2"LNR, 12.6#,L-80,NSCT, .0152 bpf, ID=3.958" —I 20888' ...;•_i DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 ORIGINAL COMPLETION 02/24/09 RLM/PJC MILL CMT PLUG WELL: W-12A 11/22/98 JJONES SIDETRACK NABORS 18E 03/01/09 PJC DRAWING CORRECTIONS PERMIT No:'1981820 05/03/07 CJA/PJC SET CBP 08/29/11 EV W-12 API No: 50-029-22023-01 05/13/07 JGM/PJC CEMENT PLUG SEC 21,T11 N,R12E, 1542'SNL&1196'WEL 09/17/07 DAV/PJC GLV C/O 01/14/09 CJA/SV MILL CMT PLUG(12/18/08) BP Exploration(Alaska) TREE= 4-1/16"FMC 111112A L 1 & L2 AFETY NOTES: WELL ANGLE-70°@ 13768'"` ' WELLHEAD= FMC PERFS @ 15700'-15940' POSSIBLY SQZ(05/14/07) ACTUATOR= BAKER &MILLED OUT(02/24/09)-SEE AWGRS"` KB.ELEV= 83.67' Proposed CTD Multi Lat Sidetrack BF.ELEV= 54.37' KOP= 880' Max Angle= 98©14783' Datum MD= 13782' 2159' --I4-1/2"HES X NIP,ID=3.813" I J [ Datum TVD= 8800'SS GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 7 3873 3198 P52 MMG DOME• RK 16 09/17/07 13-3/8"CSG,68#,L-80, ID=12.415" 3079' J6 5965 4409'55 MMG DMY RK 0 11/22/98 5 7408 5226 r 56 MMG DOME RK 16 09/17/07 la' 4 8735 5989'54 MMD DMY RK 0 11/22/98 Minimum ID = 3.80" @ 13399' 3 10062 6789 r 52 MMG DOME RK 16 09/17/07 4-1/2" HES XN NIPPLE milled out 2 11390 7597 57 MMG SO RK 22 09/17/07 1 12471 8197'59 MMG DMY RK 0 03/22/07; ) 1 12747' —I TOP OF BKR TIEBACK SLV, ID=7.50" 12754' —19-5/8"X 7"BKR ZXP PKR,ID=6.188" ' 12760' —19-5/8"X 7"BKR HMC HGR,ID=6.188" TOP OF CEMENT —LL27'11: ¢SV -1 13070'1 9-5/8"CSG,47#,NT-80S, ID=8.681" —I 14075' N9-5/8"MILLOUT WINDOW(W-12A) 12905'-12965' F'tKFORATION SUMMARY 13411' H 4-1/2"TBG, 12.6#,L-80, .0152 bpf,ID=3.958" REF LOG:ANADRILL ME RESISTIVITY ON 10/04/98 I ' 13344' H4-1/2"HES X NIP,ID=3.813" ANGLE AT TOP PERF: 83 @ 14255' Note:Refer to Production DB for historical perf data Z Z 13355' H7"X 4-1/2"BKR S-3 PKR,ID=3.875" SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 4 14255- 14275 RePerf Pending I I 13379' H4-1/2"HES X NIP. ID=3.813" 2-7/8" 4 14950- 14970 RePerf Pending ' , 2-7/8" 4 `15700-15740 RePerf Pending 13410' H 7"X 4-1/2"BKR TIEBACK SLV,105T571 2-7/8" 4 `15780-15820 RePerf Pending / 13411' —4-1/2" LEG,ID=3.958" 2-7/8" 4 `15865-15885 RePerf Pending 2-7/8" 4 `15920 15940 RePerf Pending 13423' —ELMO TT LOGGED 07/30/99 I 2-3/4" 4 16734-17516 RePerf Pending W13416' —7"X 5"BKR ZXP LTP w/HGR,ID=4.458" I 2-3/4" 4 19550-20450 RePerf Pending *SEE SAFETY NOTE FOR DETAILS 2-7/8", L-80, 6.5#Slotted liner 7"LNR,29#,L-80,MOD,.0371 bpf, ID=6.184" H 13577' ____ ———Li] L2: 15740'- 17005' '� 14574' H4-1/2"MARKER JT �� 15609' H4-1/2"MARKER JT 2-7/8", L-80, 6.5#Slotted liner �_____ _.ij L1: 16755' - 17825' 4/ Retrieve all Whipstocks Cement Milled Out to Full Liner ID Drift , AL— Re-perforate 2000 ft Zn 4 " 3-I1- Il r " Mill cement to 20.470' I 4-1/2"LNR, 12.6#,L-80,NSCT, .0152 bpf, ID=3.958" H 20888' 20800 H �� DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT x1990 ORIGINAL COMPLETION 02/24/09 RLM/PJC MILL CMT PLUG WELL: W-12A 6 i 11/22/98 JJONES SIDETRACK NABORS 18E 03/01/09 PJC DRAWING CORRECTIONS PERMIT No: 'ENDING 05/03/07 CJA/PJC SET CBP 08/29/11 EV CTD PROPOSED SIDETRACK API No: 50-029-22023-01 05/13/07 JGM/PJC CEMENT PLUG SEC 21,T11 N,R12E, 1542'SNL&1196'WEE 09/17/07 DAV/PJC GLV C/O 01/14/09 CJA/SV MILL CMT PLUG(12/18/08) BP Exploration(Alaska) a n 0 a In IQ U o a t0 J a)I Q ct gs C) v .0 ■= C rmi- < ,,Qv _ N N S m C • VI N vt oa a, V � 011 CM C L N N CD a -Wb Za` a ami m mCY = w N z IN CO O 0) 0 0 0 CO CO O C) 0 Q) 0 0) h O o a) o 0 o N 0 O O O O O o CO a Q O C) O O h h C) N C) u) 00 6 h (oj (D (O c0 co 0) a) a) a) 0) O) 0) 0) CO 0 0 V CO F 01O N 0) 0) W h O .- UD N CN UD C) 0) CL CD C) N C) h N (O O O O O O O 4 C) 6 C) 6 W V D) N O C) h COO O N N N h O N W h R h (0 W W a CO CO a) a) a) O O O N CO cO V C.) 00 co N N^ h h h h h O m co a0 O W o7 O co N N 2 U) g 0 0 j n n CO m Z Z 0) O CD m m U O CO O o 0 0 0 0 0 0 0 0 O o Z O h o O o O o O O O O O O o o 6 o) 0 0 0 0 0 0 0 N 00 coU a V V Nt V V V V ©@-) E o 7 O)V N N ,E J 0 r o 0 V N 0) N- N- O O CO NR O CO C) N 0 a) h h O 0 0) N h O C) O . h 7 C) N N O NJ R O 00 .- aD C) 0) 0 0 O co h N- O N O N O CO O O) V 4 Q) D) O) W d) O N N CO CO CO CO c 0 c 0 O O O O y N N �' (o UO O CO UO UO UD CD 40 O tD O (O O y 2 a. w d c hi O V A 'p C (=dj 0) L 7 O (O CO N CO � CO h 0) (O N ^ N V y 7 O CO N C) N (O CO N ? 0 T m w (4 O (D 00 h N N (0 u) In 6 6 0 o W R O (o 7 CO N h r h N- V CO N- 00 0) (� 0) N N N N N <- .- <- a- O O O) CO CY A 0 st t (2 H L v v v CO- v v v v v v v c v '0- p0 > 0 0 7 CO U : o) 0) o) a) c) 0) 0) D) a) 0) CO 0) 0) o) J F M Z N O 0 m m 0 vi 6u 6- ui O O ui ui ui co co- CO o 17 1:3 c O) C C Z p i5 W 0 o a CO CO Cl. 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X x Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) \ Sent: Friday, August 19, 2011 9:54 AM C W '4 L-1 ) To: 'Vazquez, Eleazar' `,-T-1) l J'j Cc: 'Lastufka, Joseph N (Wipro)' Subject: RE: W-12A L1 & L2 Sundry & Permit to Drill (PTD 198-182) Eleazar, W-IZA Based on what I can tell from our records you won't need to submit a 403 to do cover the pre-drilling wellwork on the motherbore. The well was never suspended and you are proposing to add two laterals and reperf some of the liner in the Motherbore. Submit a 401's for each lateral with a full detail of the operational steps (pre and post lateral drilling operations) needed and you should be good to go. Note 1 A 10-404 report should be generated after the wellwork is completed for the motherbore (PTD 198-182)to capture the milling and post perfing once the laterals are completed. Note 2 The Commission never received a report on the cementing sqz job that occurred in 2007 on the motherbore W-12A(PTD 198-182) This should have been reported in a 10-404. We have the milling operation details from 2008 in our records however. Can you submit that data for our records.. on a 10- _ 404please. t / p r 17 --moi sct f�.l t' Loa r�' I5Y 12L Call me if you have any questions. `7i.t1 Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Vazquez, Eleazar [mailto:vazge0@BP.com] Sent: Thursday, August 18, 2011 5:10 PM To: Schwartz, Guy L(DOA) Subject: W-12A L1 & L2 Sundry & Permit to Drill Hi Guy, A series of cement squeeze jobs were performed on well W-12A in May 2007 that successfully abandoned the perfs and holes inside the 4'/2" liner as planned. However, the plug set at 15,050' and failed and allowed the cement to get past it and inside the 41/2" liner. To the best of my knowledge, the current top of cement inside the 4'/2" liner is 15,850' and with an unknown bottom of cement(could be all the way to PBTD or shallower). As Nordic 1 is planning to mill all of the cement inside the liner, drill two laterals, retrieve the whipstocks, and re perforate the area that was plugged with the failed squeeze cement jobs in 2007 (see schematics attached). Question: Do I need to submit an application for Sundry Approval? Or, would an application for PTD suffice? Thanks in advance, Eli Vazquez Drilling Engineer.Coiled Tubing Drilling BP Exploration(Alaska)Inc. Office:(907)564-5918 Mobile-(907)240-8137 9/9/2011 Alaska Department of Natural Resources Land Administration System Page 1 of 3 Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources I find Alaska DNR Case Summary File Type: ADL File Number. 47452 4i1 Printable Case File Summary See Township,Range,Section and Acreage? New Search o. Yes No LAS Menu I Case Abstract i Case Detail I Land Abstract File: ADL 47452 '•'ar Search for Status Plat Updates As of 09/08/2011 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 09/30/1969 Total Acres: 2560.000 Date Initiated:08/11/1969 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction:AA-NRB ASSIGNMENT APPROVED Meridian: U Township: 011N Range: 012E Section: 27 Section Acres:640 Search Plats Meridian: U Township: 011N Range: 012E Section: 28 Section Acres:640 Meridian: U Township: 011N Range: 012E Section: 33 Section Acres:640 Meridian: U Township: 011N Range: 012E Section: 34 Section Acres:640 Legal Description 08-11-1969***SALE NOTICE LEGAL DESCRIPTION*** C23-037 T11N-R12E-UM GENERAL 27 640.00 ALL 28 640.00 ALL 33 640.00 ALL 34 640.00 ALL TOTAL ACRES-2560.00 04-01-1977****UNITIZED AND LEASE LEGAL DESCRIPTION******* LEASE COMMITTED IN ENTIRETY TO THE PRUDHOE BAY UNIT PRUDHOE BAY UNIT TRACT 80 http://dnr.alaska.gov/projects/las/Case Summary.cfrn?FileType=ADL&FileNumber=47452... 9/8/2011 Alaska Department of Natural Resources Land Administration System Page 1 of 3 Alaska Mapper Land Records/Status Plats Recorders Search State Cabins Natural Resources I find Alaska DNR Case Summary File Type: ADL File Number: 28263 Printable Case File Summary See Township,Range,Section and Acreage? 4 Yes No ( New Search LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28263 'ap Search for Status Plat Updates As of 09/08/2011 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 08/11/1965 Total Acres: 2560.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date: 10/06/2009 Case Subtype: NS NORTH SLOPE Last Transaction:CHNGTEXT CHANGE LEGAL TEXT Meridian: U Township: 011N Range: 012E Section: 15 Section Acres:640 Search Plats Meridian: U Township: 01IN Range: 012E Section: 16 Section Acres:640 Meridian: U Township: 011N Range: 012E Section: 21 Section Acres:640 Meridian: U Township: O l 1 N Range: 012E Section: 22 Section Acres:640 Legal Description • 05-28-1965***SALE NOTICE LEGAL DESCRIPTION*** C14-59 T11N,R12E,UM 15, 16,21,22 2560.00 11-28-1969 SEGMENT 1 TIIN,R12E,UM SECTION 15:640 ACRES SECTION 16:640 ACRES CONTAINING 1280 ACRES,MORE OR LESS. SEGMENT 2-LANDS ASSIGNED T IIN,R 12E,UM SECTION 21:640 ACRES SECTION 22:640 ACRES CONTAINING 1280 ACRES,MORE OR LESS. 04-01-1977 ****UNITIZED AND LEASE LEGAL DESCRIPTION************ ENTIRE LEASE COMMI 1 IED TO PRUDHOE BAY UNIT PRUDHOE BAY UNIT TRACT 55 T. 11 N.,R. 12 E.,UMIAT MERIDIAN,ALASKA http://dnr.alaska.gov/projects/las/Case Summary.cfm?FileType=ADL&FileNumber=28263... 9/8/2011 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME f3././ PTD# d::%'/»/7 Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: �.el�Of 4 / POOL: �,��0//IP4— ,Q1/©/G Circle Appropriate Letter/ Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well 7 / /A,4 (If last two digits in permit No. API number are /9,FI�vK ,API No. 50-(:149301-04. between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce I inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. 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