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Home My WebLink About206-0987. If perforating: 1. Type of Request: 2. Operator Name: 3. Address: 4. Current Well Class:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Property Designation (Lease Number):10. Field: Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown What Regulation or Conservation Order governs well spacing in thes pool? Will perfs require a spacing exception due to property boundaries?Yes No 11. Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): PRESENT WELL CONDITION SUMMARY Perforation Depth MD (ft): Perforation Depth TVD (ft):Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type:Packers and SSSV MD (ft) and TVD (ft): Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 12. Attachments: 14. Estimated Date for Commencing Operations: 13. Well Class after proposed work: 15. Well Status after proposed work: 16. Verbal Approval: 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approcal. Proposal Summary Wellbore schematic BOP SketchDetailed Operations Program OIL GAS WINJ WAG GINJ WDSPL GSTOR Op Shutdown Suspended SPLUG Abandoned ServiceDevelopmentStratigraphicExploratory Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: AOGCC USE ONLY Commission Representative: Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number: Location ClearanceMechanical Integrity TestBOP TestPlug Integrity Other Conditions of Approval: Post Initial Injection MIT Req'd?Yes No Subsequent Form Required: Approved By: Date: APPROVED BY THE AOGCCCOMMISSIONER PBU D-26B Ext Perf w CTU Hilcorp Alaska, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 206-098 50-029-21530-02-00 341J ADL 0028284 12500 Conductor Surface Intermediate Liner Liner 8988 80 2676 8254 1849 2734 12413 20" 13-3/8 9-5/8" 7" 4-1/2" 8988 31 - 111 30 - 2707 28 - 8282 8059 - 9908 9766 - 12500 2400 31 - 111 30 - 2706 28 - 7090 6923 - 8485 8363 -8988 12412 2670 4760 5410 7500 None 5380 6870 7240 8430 11300 - 12400 4-1/2" 12.6# 13Cr80 26 - 97748999 - 8988 Structural 4-1/2" Baker S-3 Perm Packer No SSSV Installed 9697, 8304 Date: Torin Roschinger Operations Manager Ben Walters benjamin.walters@hilcorp.com 907-564-4899 PRUDHOE BAY 2/18/2026 Current Pools: PRUDHOE OIL Proposed Pools: PRUDHOE OIL Suspension Expiration Date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Comm. Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 06/2023 Approved application is valid for 12 months from the date of approval.Submit PDF to aogcc.permitting@alaska.gov Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2026.02.03 15:44:18 - 09'00' Torin Roschinger (4662) 326-073 By Grace Chistianson at 7:37 am, Feb 04, 2026 Perforating gun BHA not to exceed 500'.Reestablish pressure containment prior to perforating.Perform and document well control drill on each shift using attached standing orders.Ensure well is dead before breaking containment J.Lau 2/4/26 10-404 A.Dewhurst 04FEB26 DSR-2/12/26JLC 2/12/2026 02/12/26 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Stage Plug and Ext Perf D-26B PTD: 206-098 Nolan Vlahovich Hilcorp Alaska, LLC Geotech 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 564-4558 E-mail: nolan.vlahovich@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Date: 2/4/2026 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20260204 Well API # PTD # Log Date Log Company Log Type AOGCC E-Set# BRU 223-34T 50283202060000 225059 12/31/2025 AK E-LINE Perf T41308 BRU 244-27 50283201850000 222038 1/2/2026 AK E-LINE Perf T41309 CLU 11RD 50133205590000 225013 1/2/2026 YELLOWJACKET SCBL T41310 CLU 11RD 50133205590000 225013 12/19/2025 YELLOWJACKET SCBL T41310 END 1-25A 50029217220100 197075 11/7/2025 HALLIBURTON COILFLAG T41311 END 1-25A 50029217220100 197075 12/26/2025 READ PressTempSurvey T41311 END 2-40 50029225270000 194152 12/18/2025 READ PressTempSurvey T41312 END 2-52 50029217500000 187092 12/24/2025 HALLIBURTON MFC40 T41313 END 2-56A 50029228630100 198058 1/1/2026 HALLIBURTON COILFLAG T41314 END 2-56A 50029228630100 198058 1/19/2026 READ CaliperSurvey T41314 KALOTSA 3 50133206610000 217028 1/14/2026 YELLOWJACKET PERF T41315 KALOTSA 3 50133206610000 217028 1/9/2026 YELLOWJACKET PERF T41315 KALOTSA 8 50133207050000 222003 12/18/2025 YELLOWJACKET PERF T41316 KBU 44-06 50133204980000 200179 12/22/2026 YELLOWJACKET CBL T41317 KBU 44-06 50133204980000 200179 11/12/2025 YELLOWJACKET PLUG T41317 KU 24-07RD 50133203520100 205099 1/6/2026 AK E-LINE CBL T41318 KU 24-07RD 50133203520100 205099 1/6/2026 AK E-LINE Plug/Cement T41318 KU 24-07RD 50133203520100 205099 1/1/2026 AK E-LINE Plug/Cement/TubingPunch T41318 MPI-36 50029236770000 220047 1/19/2026 READ CaliperSurvey T41319 MPI-36 50029236770000 220047 1/19/2026 READ LeakDetectLog T41319 NCIU A-19 50883201940000 224026 1/7/2025 AK E-LINE Perf T41320 NFU 42-35 50231200460000 214170 1/8/2026 YELLOWJACKET PERF T41321 NIK OI24-08 50029234570000 211130 1/19/2026 HALLIBURTON COILFLAG T41322 ODSN-04 50703206700000 213037 1/20/2026 HALLIBURTON LDL T41323 ODSN-22 50703207080000 215054 12/20/2025 READ LeakDetection T41324 PBU 15-11D 50029206530400 225112 1/18/2026 HALLIBURTON RBT-COILFLAG T41325 PBU 15-43 50029226760000 196083 12/21/2025 HALLIBURTON RBT T41326 PBU B-30B 50029215420200 225009 1/24/2026 HALLIBURTON RBT-COILFLAG T41327 PBU C-33B 50029223730200 225096 12/16/2025 HALLIBURTON RBT-COILFLAG T41328 Gavin Gluyas Digitally signed by Gavin Gluyas Date: 2026.02.05 09:10:43 -09'00' Nolan Vlahovich Hilcorp Alaska, LLC Geotech 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 564-4558 E-mail: nolan.vlahovich@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: PBU D-26B 50029215300200 206098 12/20/2025 HALLIBURTON ISAT T41329 PBU D-26B 50029215300200 206098 12/19/2025 BAKER SPN T41329 PBU F-21A 50029219490100 225019 1/18/2026 HALLIBURTON RBT-COILFLAG T41330 PBU J-21A 50029217050100 225106 1/21/2026 HALLIBURTON RBT-COILFLAG T41331 PBU L-291 50029237790000 224002 12/26/2025 HALLIBURTON RBT T41332 PBU L-291 50029237790000 224002 12/9/2025 YELLOWJACKET RCBL T41332 PBU S-107A 50029220440200 225083 12/8/2025 HALLIBURTON RBT-COILFLAG T41333 PBU S-201A 50029229870100 219092 1/21/2026 HALLIBURTON WFL-TMD3D T41335 PBU S-24B 50029220440200 203163 12/22/2025 HALLIBURTON RBT T41334 PBU S-24B 50029230230100 203163 12/23/2025 HALLIBURTON WFL-TMD3D T41334 SRU 223-15 50133207410000 225123 1/29/2026 YELLOWJACKET GPT-PERF T41336 SRU 223-15 50133207410000 225123 1/20/2026 YELLOWJACKET SCBL T41336 SRU 233-10 50133207400000 225113 12/30/2026 AK E-LINE CBL T41337 SRU 233-10 50133207400000 225113 1/10/2026 YELLOWJACKET SCBL T41337 SRU 233-10 50133207400000 225113 1/6/2026 YELLOWJACKET SCBL T41337 SRU 34-28 50133101580000 163007 1/7/2026 YELLOWJACKET Gamma Ray T41338 SU 32-16 50133207380000 225095 1/17/2026 YELLOWJACKET GPT-PLUG-PERF T41339 SU 32-16 50133207380000 225095 11/22/2025 YELLOWJACKET SCBL T41339 SU 43-10 50133207390000 225107 12/10/2025 YELLOWJACKET SCBL T41340 TBU A-12RD 50883200320100 171029 1/2/2026 AK E-LINE StripGun T41341 TBU D-24A 50733202240100 174064 12/4/2025 AK E-LINE TubingPunch T41342 Please include current contact information if different from above. T41329PBU D-26B 50029215300200 206098 12/20/2025 HALLIBURTON ISAT PBU D-26B 50029215300200 206098 12/19/2025 BAKER SPN Gavin Gluyas Digitally signed by Gavin Gluyas Date: 2026.02.05 09:11:00 -09'00' STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS JUL i 5 oma 1. Operations Performed Abandon ❑ Plug Perforations ❑ Fracture Stimulate ❑ Pull Tubing ❑ Operationst Suspend 11 Perforate ❑ Other Stimulate ❑ Alter Casing ❑ Change App P.g m Plug for Redrill ❑ Perforate New Pool ❑ Repair Well ❑ Re-enter Susp Well ❑ Other: MILL CIBP 0 2. Operator Name: BP Exploration (Alaska), Inc 4, Well Class Before Work Development Ei Exploratory ❑ 5. Permit to Drill Number. 206-098 3. Address: P.O. Box 196612 Anchorage, AK 99519-6612 Stratigraphic ❑ Service ❑ 1 6. API Number: 50-029-21530-02-00 7. Property Designation (Lease Number): ADL 028285 & 028284 8. Well Name and Number: PBU D -26B 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY. PRUDHOE OIL 11. Present Well Condition Summary: Total Depth: measured 12500 feet Plugs measured None feet true vertical 8988 feet Junk measured 12412 feet Effective Depth: measured 12413 feet Packer measured 9897 feet true vertical 8988 feet Packer true vertical 8304 feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 31 - 111 31-111 Surface 2677 13-3/8" 30-2707 30-2706 5380 2670 Intermediate 8254 9-5/8" 28-8282 28-7090 6870 4760 Liner 1849 7" 8059-9908 6923-8485 7240 5410 Liner 2734 4-112" 9766-12500 8363-8988 9020 8540 Perforation Depth: Measured depth: 11300 - 12400 feet True vertical depth: 8999-8988 feet Tubing (size, grade, measured and We vertical depth) 4-1/2" 12.6# 13Cr80 26-9774 26-8370 Packers and SSSV (type, measured and 4-1/2" Baker S-3 Perm Packer 9697 8304 true vertical depth) No SSSV Installed 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcr Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 720 53505 340 0 1126 Subsequent to operation: Shut -In 14.Attachments: (required per 20AC25070.25071.&25.283) 15. Well Class after work: Daily Report of Well Operations IZ Exploratory ❑ Development 0 Service ❑ Stratigraphic ❑ 16. Well Status after work. Oil El Gas ❑ WDSPL ❑ Copies of Logs and Surveys Run ❑ Printed and Electronic Fracture Stimulation Data ❑ IGSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUG ❑ 17. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: NIA Authorized Name: Stone, Christopher Contact Name: Stone, Christopher Authorized Title: D & K Pad / GC1 as etroleum Engineer Contact Email: Chnstopher.Stone0bp.com Authorized Signature: MI� Date: Contact Phone: +1 907 564 5518 Farm 10.404 Revised 04/2017 I(( IS /"l[91GCjj IT1`" RBDMS_4r,A✓JUL 16 2019 Submit Original Only Daily Report of Well C PBU D -26B ctive: Mill CIBP plete weekly bop test. Make up and rih with 2.875' motor and 3.700" 6 -blade junk mill. Tag at 12000 and mill. Plug milled and pushed to 12412CTM. POOH. Well freeze protected with J of 50150. RDMO. VV9JJ-EAD= OTIS-SHORT ACTUATOR= AXELSON KB. ELEV = 721; BF. E3 -EV = 42.47 KOP= 3408' Mm Angle = 93'@ 1134T Datum MD= 10457' Datum TVD= 8800'SS Minimum ID = 3.725" @ 9761' 4-1/2" HES XN NIPPLE OF 7'LINER 19-5/8• VVEPSTOCK (02(10/08) (02110/DS) I 9-5/8' CSG, 47p, L-80 BUr, r, D = 8.681' PERFORATION SUMMARY REF LOG: R&%U GR ON 02/22{08 ANGLEATTOP PERE. 92' @ 11300' Note: Refer to Production DB for tistoricaF perf data SIZE SPF MERVAL OpnlSgz I DATE 2-7/8' 6 11300-11950 O 02/23/08 2-7/8' 6 12100-12400 O 02/23/08 D -26B TOP, .0152 bpf, D = 3.958' SAFETYNOTES: WELLANGLE> 701 @ 10717' —4-112" CHROME TBG... GAS LFT MANDRELS ISTI MD I TVD IDEVITYPEI VLV ILATCHI PORT DATE 3 3137 3136 7 MMG DOME RK 16 03/06/08 2 5646 5278 50 MMG SO RK 20 03/06/08 1 7401 6452 46 MMG OMY RK 0 02/18/08 DATE Fifa/BY OOWAWFS DATE REV BY OOMMaffS 02112/88 NISE ORGINAL COMPLETION 03106/08 KSBIPJC GLV C/O 0U07189 NIPS RWO 06/10/08 CS/PJC DF2LG DRAFr OORRBCTION6 06/17/97 WHTL CTD HORZ SDTRACK(D-26A) 07/29/09 RDBIPJC SETCBP(07/08/09) 05/17/05 NOES RWO SUSPENDED 0627119 JNWJMD MILLED CBP-SEF FISH 06101/06 616 RAG SUSPENDED 07/26106 WE'S SIDETRACK(D-26B) & MAC LNR HGR, [)=6.31* MLLOUr 1MNDOW(D-26B) 8282'-8328' IE''Yr D = 3.870' 9766• 7'X5•BKRHRZXPLTP w/ 11.36' PBR D = 4.410' 12417 CTD ucm ,u==.=a X S BKR FLD( LOCK LNR IR D = 4.430' c 4-1/7 XO. D = 3.958' CBP (06/26/19) PRUDH EBAY UWT WELL' D26B Psw No: 206a960 AR No: 50-02.421530-02 BP Exploration (Alaska) 04/28/11 Schlumberger NO. 5729 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job N Log Description Date BL Color CD 15 -09A BBKA -00096 PRODUCTION PROFILE r • 03114/11 1 ... (Y7 1 17 -06 BBKA -00094 INJECTION PROFILE O " rd , il .® _ 03/10/11 1 ,t air C -12B BAUJ -00064 MEM PRODUCTION PROFILE _ ' 03/08/11 1 t•R 'I 1 0 -238 BLPO -00079 MEM PRODUCTION PROFILE 1' �( 03/09/11 1 i 1 16.08A BJGT -00022 GLS I . ' - P 9f„ �L 03/07/11 1 • n 5 ' 1 02 -18B BLPO -00087 MEM CBL ♦ , 03/25/11 __fa • T" 1 1 J -22A BJGT -00023 CBL 4.I1r — - 03/10/11 -,.._ 1111.111111 1 L -210 BLPO -00086 MEM INJECTION PROFILE ' b' •--'; 03/23/11 1 1 � L V -105 BLPO -00091 MEM INJECTION PROFILE _ r 03/29/11 � 1 V -220 BBSK -00065 • ••• 04/11/11 1 ` • 410. 04//11 1 I/3. 1 • V -212 BD88.00096 MEM INJECTION PROFILE L •s ILE , '� 04/03/11 1 L -214A BCRJ -00073 1 • • • • I _ 03/18/11 1 r 1 V -223 BAUJ -00071 MEM INJECTION PROFILE a 1 _ � 03119/ 1 V -217 BAUJ -00077 • - • • I � i_r15jr� 1 3- 05/0 -29 80414-00043 •(�"; j a 03/20/11 1 1 1- 47A/M -20 BLPO -00092 MEM PRODUCTION PROFILE ' • WZ r' r e`j . M' 1 1.25AIK -22 BBSK -00057 �: Z7LL:. 03/13/11 1 S -01C BCUE -00113 • 03/17/11 _ & A • fl� 1 11 -30 BD88 -00097 '• • • • • L O f 04/18/11 1 p ‘ JI 1 04 -11A AWJI-00134 INJECTION PROFILE I,J� 0 --II A- 03/24/11 14041.11." 1 /"."..) P2 -41 BG4H -00044 PRODUCTION PROFILE at C '. -n 5 03/22/11 1 1 D -268 BMSA -00009 SCMT �y �� _ 003/24/11 1 02-18B BLPO -00087 MEM PRODUCTIO N PROFILE a{j(D '- z-•(„ 03/24/11 nA 1 _ Z -20 - BP5G-00010 GLS I1g�• -f a V 03/29/11 1 1 % 1 i9 1 Y -29A BCUE -00122 MEM LDL !i f,, ( 03/20/11 1 Jo" 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Explorahon (Alaska) Inc Alaska Data & Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambell Street, Suite 400 900 E. Benson Blvd Anchorage, AK 99503 -2838 • bp BP Exploration (Alaska) Inc. # = Attn: Well Integrity Coordinator, PRB -20 " Post Office Box 196612 7, . Anchorage, Alaska 99519 -6612 � �' M HR - ' EyUtL March 06, 201 ,,, 0 z E Mr. Tom Maunder RECEIV� Alaska Oil and Gas Conservation Commission 333 West 7 Avenue Anchorage, Alaska 99501 AI skn ti! & Gas Co os. f€r�r 2 ssion Subject: Corrosion Inhibitor Treatments of GPB D Pad 'Moorage Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from D Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Jerry Murphy, at 659 -5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) Date: 03/04/11 Corrosion • Initial top Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # of cement pumped cement date inhibitor sealant date ft bbls ft na gal D -01A 1970780 50029200540100 NA N/A NA N/A 1/31/2011 D -03A 2001340 50029200570100 NA 14 NA 100.30 1/19/2011 D -04B 2031100 50029200560200 NA 4 NA 56.10 2/19/2011 0-05 1700060 50029200580000 NA 0 NA trace 1/19/2011 D -06A 1970430 50029201480100 NA 0.5 NA 3.40 1/7/2011 D -07B 2051810 50029201620200 NA 0.5 NA 3.40 1/7/2011 D -08A 2021230 50029203720100 NA 0.5 NA 3.40 2/9/2011 D -09A 1990850 50029203810100 NA 0.7 NA 3.40 1/19/2011 0-10 1790530 50029203890000 NA 2.3 NA 8.50 3/2/2011 D -11 B 2100770 50029204350100 NA 3.5 NA 23.80 1/6/2011 D -12 1800150 50029204430000 NA 1.3 . NA 5.10 1/15/2011 D -13A 2000810 50029204490100 NA 0.5 NA 2.55 3/31/2010 D -14A 1961530 50029204500100 NA 0.2 NA 0.85 1/15/2011 D -15A 1972120 50029204610100 NA 0.2 NA 0.85 1/15/2011 • D -16A 2090250 50029206830100 NA 0.1 NA 0.85 2/20/2011 D -17B 2021110 50029206920200 NA 1 NA 3.40 2/19/2011 D -18A 2011030 50029206940100 NA 5.4 NA 34.00 2/20/2011 D -19B 2011120 50029207070200 NA 0.8 NA 3.40 2/19/2011 D -20 1820440 50029207800000 NA 0.5 NA 1.70 2/19/2011 0-21 1820520 50029207880000 NA 0.2 NA 3.40 2/10/2011 D -22C 2081210 50029207370300 NA 0.2 NA 0.85 2/10/2011 D -23A 1961880 50029207380100 NA 13.5 NA 93.50 3/1/2011 D -24 1852990 50029215060000 NA 0.9 NA 6.80 1/8/2011 D -25A 2000240 50029215220100 NA 6 NA 32.30 1/15/2011 D -26B 2060980 50029215300200 NA 0.8 NA 3.40 2/19/2011 1 � D -27A 2051930 50029215430100 NA 0.3 NA 1.70 2/10/2011 D -28B 2090890 50029215560200 NA 0.3 NA 1.70 2/10/2011 0-29 1852530 50029214700000 NA 13.3 NA 27.20 1/16/2011 D -30B 2061840 50029226460200 NA 2.2 NA 13.60 12/25/2010 D -31A 1960950 50029226720100 NA 3.3 NA 27.20 1/19/2011 0-33 1960360 50029226520000 NA 2.2 NA 18.70 1/8/2011 ,R. P ~, ~ ~ ~ -~~ ~ . , ~~ ..,~' ~ .d-~y1 " 7t ~- "~. s ~: z~ w ~ ~. ~..a ~i' !~ III ~~. - ~~ „8 ~, ~~ i ~ ~ ~' ~,_ ~~~ f ~. ~rt .~ MICROFILMED 6/30/2010 DO NOT PLACE ANY NEW .MATERIAL UNDER THIS PAGE C:\temp\Temporary Internet Files\OLK9\Microfilm_Marker.doc DATA SUBMITTAL COMPLIANCE REPORT 3/112010 Permit to Drill 2060980 Well Name/No. PRUDHOE BAY UNIT D-26B Operator BP EXPLORATION (ALASFCIy INC API No. 50-029-21530-02-00 MD 12500 TVD 8988 Completion Date 2/25/2008 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional Surve Yes DATA INFORMATION Types Electric or Other Logs Run: MWD, DIR / GR /RES /PWD, MWD DIR / GR /RES, .MWD DIR / GR / Well Log Information: Log/ Electr Data Digital Dataset Log Log Run (data taken from Logs Portion of Master Well Data Maint Interval OH / type meamrmt numoer Name ~~a~~ ~.~~u~a no ~rarr ~wp ..~ R~~~~.~.. ~.,~~~~~~~~~,,~ ~D Asc Directional Survey 0 12500 Open 3/3/2008 ~pt Directional Survey 0 12500 Open 3/3/2008 ! I I;ED C Lis 16325~nduction/Resistivity 8293 12499 Open 5/23/2008 LIS Veri, FET, ROP, GR, I DRHO, NPHI, TRPM, RPD, RPS, RPX, RAM og Induction/Resistivity 5 Blu 8329 12453 Open 5/23/2008 MD Vision Service Well Cores/Samples Information: Name ADDITIONAL INFORMATION Well Cored? Y Chips Received? I~F~P}/ Analysis ~~ Received? Sample Interval Set Start Stop Sent Received Number Comments Daily History Received? ~ N Formation Tops ~~ N •i •I Comments: DATA SUBMITTAL COMPLIANCE REPORT 311/2010 Permit to Drill 20609$0 Well NamelNo. PRUDHOE BAY UNIT D-266 Operator BP EXPLORATION (ALASKA) INC MD 12500 ND 8988 Completion Date 2/25/2008 Completion Status 1-OIL Current Status 1-OIL Compliance Reviewed By: API No. 50-029-21530-02-00 UIC N Date: __ ~ I - `~ ~~ ~ 05/13/08 ~~rtl~~~~~h~~~ NO. 4702 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503-2838 Attn: Christine Mahnken ATTN: Beth 333 West 7th Ave, Suite 1(10 Anchorage, AK 99501 Wnll 1..~. u MPS-11 12017492 CEMENT & CORROSION LOG 7l)~-//~ / 04/22/08 V V ivy 1y 1-21/K-25 12061694 PRODUCTION LOG '~f(7 r~U °~ _ ~~.i~ 04/18/08 1 1 GNI-04 12057606 -. a STEP RATE INJECTIVI'1 r I tS ~ C~~ / 3~jc/ 04!23/08 1 1 L-220 11975763 USIT 04/22/08 1 1 MPS-31 11962598 USIT G r 05/03/08 1 1 X-17 12034894 USIT - / • /(o ~ 05/03/08 1 1 04-47 11978458 MEM LDL ~9Lf -'6 3 3 05/01/08 1 1 Y-07A 11966254 TEMP & PRESS LOG aU~' - / 05/02/08 1 1 L5-36 11975768 PRODUCTION PROFILE W/FSI -V f 04/28/08 1 1 Z-112 40016350 OH MWD/LWD EDIT "~-- 02/15/08 2 i Z-112 PB 40016350 OH MWD/LWD EDIT O'~ -- '~ 02/11/08 2 1 Y-07A 11962781 CH EDIT PDC GR fSCMT) ~~ /(~S `~~0~-( 02/03/08 1 L2-16 11975760 RST ~ C~`o!~_-~~ ~r ~`;~-~ 03/31/08 1 1 L2-33 11998999 RST ~ - 04!01/08 1 1 Li-14 11999000 RST ~ ~ 04/02/08 1 1 D-266 40016518 OH MWD/LWD EDIT S 02/21/08 1 1 DI C/1Cr II f~VL1I1l~i1 r _ _________-_-_._..___.. ~. ~.~........ r...r .,r•v~„~„~~w v,~~vv~ 1 VnV1I IV. BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date Delivered: ~~ Alaska Data & Consulting Services 2525 Gambell Street, Suite 40 , Anchorage, AK 99503-2838 ;' ATTN: Beth ~ i \ \~. Received by: ~~- ~~ ~1V~D STATE OF ALASKA ~~~ ALASK~IL AND GAS CONSERVATION COM SSION ~~}~ ~ 0 2005 WELL COMPLETION OR RECOMPLETION REPORT AND LOG ;aska Oil ~ Gas Cpt11f11iscit~t, 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended zoAACZS.~os zoAACZS.~~o ^ GINJ ^ WINJ ^ WDSPL ^ WAG ^ Other No. of Completions One 1b. Well Class: ®Development ^ Exploratory ^ Service ^ Stratigraphic 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Ab~J,},/, 2/25/2008 „Q~ 12. Permit to Drill Number 206-098 - 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 2/12/2008 ~ 13. API Number 50-029-21530-02-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 2/21/2008 - 14. Well Name and Number: PBU D-266 WEL, SEC. 23, T11 N, R13E, UM SNL, 1692 1716 Top of Productive Horizon: 81' NSL, 374' WEL, SEC. 15, T11 N, R13E, UM 8. KB (ft above MSL): 70.52' Ground (ft MSL): 41.6' 15. Field /Pool(s): _ Prudhoe Bay Field / Prudhoe Bay Total Depth: 50' SNL, 2232' WEL, SEC. 22, T11 N, R13E, UM 9. Plug Back Depth (MD+TVD) 12413 8988 Pool 4b. Location of Well (State Base Plane Coordinates, NAD 27): Surface: x- 653463 y- 5959273 Zone- ASP4 10. Total Depth (MD+TVD) 12500 ~ 8988 16. Property Designation: ADL 028284 " TPI: x- 649464 y- 5960989 Zone- ASP4 - 5960821 Zone- ASP4 th: x- 647609 Total De 11. SSSV Depth (MD+TVD) None 17. Land Use Permit: p y 18. Directional Survey ®Yes ^ No Submit electronic and rinted information er 20 AAC 25.050 19. Water depth, if offshore N/A ft MSL 20. Thickness of Permafrost (TVD): 1900' (Approx.) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): MWD DIR / GR /RES / PWD, MWD DIR / GR /RES, MWD DIR / GR /RES ! ABI /DEN /NEU, DEN /NEU 22. CASING, LINER AND CEMENTING RECORDN//~/LSON ~ ~a~~14 ~8'9.4TYd CASING SETTING DEPTH MD SETTING DEPTH ND 1-{OLE AMOUNT Wi. PER FT. GRADE .TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" Insulated Conductor Surface 110' Surface 110' 36" 8 cu ds Concrete 13-3/8" 72# L-80 Surface 2709' Surface 2709' 17-1/2" 3260 cu ft PF'E' 465 cu ft PF 9-5/8" 47# L-80 Surface 282' Surface 7090' 12-1/4" 1880 cu ft Class'G' 230 cu ft'G' 7" 26# L-80 8058' 9907' 6923' 8484' 8-1/2" 415 cu ft Class'G' 4-1/2" 12.6# L-80 9766' 12500' 8363' 8988' 6-1/8" 415 cu ft LiteCrete 23. Open to production or inject ion? ®Yes ^ No 24. TUBING RECORD If Yes, list each i f T & Bottom Pe MD+TVD nterval open rforation Size and Number): SIZE DEPTH .SET MD PACKER SET MD ; ( o op 2-7/8" Gun Diameter 6 spf 4-1/2", 12.6#, 13Cr80 9774' 9697' , MD TVD MD ND 11300' - 11950' 8999' - 8993' 12100' 12400' 8988' 8988' 25, ACID, FRACTURE, CEMENT SQUEEZE, ETC. - - DEPTH INTERVAL MD AMOUNT & KIND OF MATERIAL USED Freeze Protect w/ 152 Bbls of Diesel 26. PRODUCTION TEST Date First Production: March 13, 2008 Method of Operation (Flowing, Gas Lift, etc.): Flowing Date Of Test: 3/12/2008 HOUrS Tested: 6 PRODUCTION FOR TEST PERIOD OIL-BBL: 375 GAS-MCF: 2,257 WATER-BBL: 922 CHOKE SIZE: 128 GAS-OIL RATIO: 6,026 Flow Tubing Press. 560 CaSing PreSS: 1,400 CALCULATED 24-HOUR RATE OIL-BBL: 1,498 GAS-MCF: 9,027 WATER-BBL:. 3,688 OIL GRAVITY-API (CORK): 27. CORE DATA Conventional Core(s) Acquired? ^Yes ®No Sidewal l Cores Ac uired? ^Yes ®No If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 25Q.-071. COi~PL[7i0M None ' ~ O Form 10-407 Revised 02/2~9Q7~ ~ ~ I ~ I ~ ~ CONTINUED ON REVERSE SIDE 5 I~ a ~a3 28. GEOLOGIC MARKERS (LIST ALL FORMATIONS AN ERS ENCOUNTERED): 29. FORMATION TESTS NAME TVD Well Teste ^ Yes ®No If yes, list intervals and formations tested, briefly summarizing test Permafrost Top results. Attach separate sheets to this form, if needed, and submit Permafrost Base detailed test information per 20 AAC 25.071. Top HRZ 8330' 7126' None Base HRZ 8638' 7383' Sag River 9908' 8485' Shublik A 9942' 8514' Shublik B 9990' 8554' Shublik C 10010' 8571' Sadlerochit 10040' 8596' Top CGL /Top Zone 3 10280' 8772' Base CGL /Top Zone 2C 10431' 8858' 25N 10580' 8925' 23SB /Top Zone 2B 10593' 8931' PGOC 10652' 8954' 22TS 10720' 8978' OWC 10800' 8999' (Invert) WOC 11282' 8999' (Revert) Formation at Total Depth (Name): 22TS 10720' 8978' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. L / "`- J Signed Terrie Hubble Title Drilling Technologist Date PBU D-26B 206-098 Prepared By NameMumber.~ Terrie Hubble, 564-4628 Well Number Drilling Engineer: Jim Nigh, 564-5220 Permit No. / A royal No. INSTRUCTIONS GeNew-~: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. IreM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. IreM 4b: TPI (Top of Producing Interval). IreM 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. bean 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. IreM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). IreM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). IreM 27: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. IreM 29: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 02/2007 Submit Original Only BP EXPLORATION Page 1 of 1 Leak-Off Test Summary Legal Name: D-26 Common Name: D-26 Test Date Test Type Test Depth (TMD) - Test Depth (TVD) AMW Surface Pressure Leak Off Pressure (BHP) EMW 2/11/2008 - FIT -- 8,328.0 (ft) 7,100.0 (ft) 9.00 (ppg) 849 (psi) 4,168 (psi) 11.30 (ppg) 2/16/2008 FIT. 9,907.0 (ft) 8,489.0 (ft) 8.40 (ppg) 485 (psi) 4,189 (psi) 9.50 (ppg) Printed: 3/12/2008 11:46:28 AM i 9+ 1 I! i ~I ~ ~ BP EXPLORATION Page 1 of 12 Operations Summary Report ~~ Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABOBS ALASKA DRILLING I Rig Release: Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 2/5/2008 15:00 - 23:30 8.50 MOB P 23:30 - 00:00 0.50 MOB P 2/6/2008 00:00 - 04:00 4.00 MOB P 04:00 - 07:00 3.00 RIGU P 07:00 - 08:00 1.00 RIGU P 08:00 - 00:00 16.00 RIGU N 2/7/2008 00:00 - 05:30 5.50 RIGU N 05:30 - 09:00 3.50 RIGU P 09:00 - 10:00 1.00 BOPSU P 10:00 - 13:00 3.00 KILL P 13:00 - 13:30 13:30 - 16:30 0.50 3.00 WHSUR BOPSU P P l 16:30 - 21:30 5.00 BOPSU P 21:30 - 23:30 2.00 ~ BOPSUf~ P 23:30 - 00:00 0.501 PULL ~ P 2/8/2008 ~ 00:00 - 03:30 ~ 3.50 ~ PULL ~ P PRE Prepare to move Nabors 7ES from O-pad to D-26B. Move pits, Iliamna Camp, Truck Shop from O-pad to D-26. PRE Move sub down O-pad access road onto Spine road. PRE Continue to move rig onto Spine road, down D-pad access road and arrive on D-pad at 3:30. PRE Spread herculite and spot rig over well D-26. Set mats and set down sub. PRE Spot pits along sub and connect electrical lines. Start heating pits. WAIT PRE Wait on temperature to reach -35 degrees F to raise derrick. Work on available tasks: winterize cellar, inspect derrick, prepare floor, winterize rig, spot cuttings tank and burm, bring on heated seawater to pits, rig up lines to circ out freeze protect, shovel snow, clean rig, etc. WAIT PRE Continue to wait on weather to raise derrick. PRE Raise derrick and bridle down. Finish rigging up rig floor. Connect blocks and top drive Accept rig C~ 9:00 hours. PRE RU DSM Lubricator and pull the BPV. DECOMP RU circ lines and circ out diesel freeze protect. 3 bpm, 120 psi. Recovered 137 bbls diesel and returned for recycle. Displaced well w/ sea water. BD/RD circ lines. DECOMP Install TWC and test from below to 1000 psi. DECOMP PJSM for ND/NU. ND tree and adapter flange. NU BOPE. Hook up service lines and install riser. Fill stack with sea water. DECOMP RU test Equipment. Test BOPE with 4" and 4.5" test joints. Test 250 psi low and 3500 psi high. Good test. Test witnessed by Lenward Toussant/Chris Weaver, Nabors Tool Pushers and Kris Honas/Duncan Ferguson BP WSL. Test witness waived by AOGCC rep Bob Noble. DECOMP PJSM to RU lubricator. RU DSM 7" lubricator and extension. Test lubricator to 500 psi. Unable to engage TWC. RU centralizer on lubricator. Engage TWC and pull. RD DSM lubricator and extension. DECOMP RU to pull 4-1/2" kill string. MU TC-II crossover and back out lock down screws. DECOMP Pull tubing hanger to rig floor with 50K pick up weight. Tubing hanger in good condition. Send to FMC for re-dress and re-run. Pull 2,544' of 4-1/2" tubing and lay down. Clean and clear rig floor. SIMOPS: Pressure test O.A. to 1000 psi with diesel (continue to pull tubing). Printed: 3/12/2008 11:46:34 AM BP EXPLORATION Operations Summary Report Page 2 of 12 ~ Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABOBS ALASKA DRILLING I Rig Release: Rig Name: NABOBS 7ES Rig Number: Date From - To Hours ' Task Code NPT ~ Phase Description of Operations 2/8/2008 03:30 - 06:30 3.00 WHSUR P DECOMP RU FMC tools to pull 9-5/8" packoff through stack. J into packoff and pull 40K over (75K PU). Set new packoff and run in lock down screws. Pressure test new packoff to 5000 psi for 10 minutes. 06:30 - 08:00 1.50 WHSUR P DECOMP Test lower BOP ram with 4" and 4-1/2" test joint to 250 psi low and 3500 psi high. RD test equipment. 08:00 - 11:30 3.50 WHSUR P DECOMP PJSM with all hands. Prepare floor and pipe shed to pickup cleanout BHA. Pickup 8.5" cleanout BHA with used MXL tricone bit, drill collars, hydraulic jars, and HW drill pipe. RIH to 824'. 11:30 - 14:00 2.50 WHSUR P DECOMP RIH picking up 4" drill pipe singles to 3003'. Tag EZSV plug. 14:00 - 16:30 2.50 WHSUR P DECOMP Drill EZSV plug from 3003'to 3006'. 420 GPM, 740 psi, 25K WOB, 60 RPM, 2K TO, 95K ROT. Work pipe through drilled area several time after drilling with no drag or overpull. 16:30 - 22:00 5.50 WHSUR P DECOMP RIH picking up drill pipe singles and push junk to 2nd EZSV. Tag 2nd EZSV at 9828' Set down 5K. 22:00 - 23:00 1.00 WHSUR P DECOMP Circulate bottoms up rotating and reciprocating. 508 GPM, 2289 psi, 60 RPM, 4K TO, 180K PU, 150K SO, 165K ROT. 23:00 - 23:30 0.50 WHSUR P DECOMP Monitor well: small amount of gas breaking out at flow nipple. Decided to Circulate -1/2 bottoms up. 23:30 - 00:00 0.50 WHSUR P DECOMP Circulate 288 bbls reciprocating pipe. 525 GPM, 2383 psi, 180K PU, 165K SO. 2/9/2008 00:00 - 02:00 2.00 CLEAN P DECOMP Monitor Well: No flow, no gas. Well slightly out of balance. Heavy on annulus side. Pull 10 stands checking displacements every 5 stands. Displacements good. 02:00 - 05:00 3.00 CLEAN P DECOMP Pump a dry job and continue to POOH racking back 4" drillpipe stands to 324'. 05:00 - 06:30 1.50 CLEAN P DECOMP Stand back drill collars and break out bit on 9-5/8" cleanout BHA. 06:30 - 07:30 1.00 CLEAN P DECOMP Clean and clear the rig floor. Change out handling equipment. 07:30 - 13:00 5.50 DHB P DECOMP Trip in hole with 4" drill pipe to set balanced cement plug. Tag EZSV at 9828'. Pick up to 9813' 13:00 - 14:00 1.00 DHB P DECOMP PJSM w/ SLB cement crew and rig hands. RU SLB Cementing equipment. Circulate seawater 211 gpm, 497 psi. 14:00 - 15:00 1.00 DHB P DECOMP Pump 10 bbls of water with SLB cementing unit. Test cement lines to 3500 psi. Pump 19 bbls of water followed by 20 bbls of 15.8 ppg Class G cement followed by 5 bbls of water. Switch to rig pumps and displace cement with 88 bbls of 8.5 ppg seawater. 15:00 - 17:00 2.00 DHB P DECOMP POOH from 9813' to 9530' and circulate out any excess cement (reciprocate pipe). 518 gpm, 2035 psi, 613 bbls 150K PU, 140K SO. Printed: 3/12/2008 11:46:34 AM BP EXPLORATION Page 3 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: Rig Name: NABORS 7ES Rig. Number: Date ;From - To Hours ~ Task Code NPT ~ Phase Description of Operations i 2/9/2008 15:00 - 17:00 2.00 DHB P DECOMP Noted comtaminated cement on bottoms up by pH spike. Drop a drill pipe wiper and circulate to mule shoe. POOH to 9083'. 17:00 - 18:00 1.00 DHB P DECOMP PJSM. Slip and cut 136' of drilling line. 18:00 - 22:00 4.00 DHB P DECOMP POOH with 4" drill pipe racking back stands. Clean and clear the rig floor. 22:00 - 00:00 2.00 DHB P DECOMP PJSM with SLB E-line crew and rig hands for GR/JB and CCL run. RU E-line and RIH with 8.5" Gage ring/junk basket and CCL. 2/10/2008 00:00 - 03:00 3.00 DHB P DECOMP Continue to RIH with 8.5" gage ringrunk basket. Tag up at 6420'. Pick up and attempt to work past 6420' for 20 minutes without success. POOH with GR/JB. Junk basket full of thick tar/parafin substance as well as some rubber and brass pieces from the drilled up EZSV. 03:00 - 06:00 3.00 DHB P DECOMP RIH with 8.25" gage ring/junk basket to 8500'. Prepare a cleanout BHA from Baker to include: 8-1/2" bit, scrapper, boot baskets, bit sub, upper mill, bumper sub, jar, and drill collars. POOH with 8.25" gage ringrunk basket. Basket only 1/4 full of tar/parafin. 06:00 - 09:30 3.50 DHB P DECOMP RIH with 8.45" gage ring/junk basket to 8500'. POOH with very little in the junk basket. 09:30 - 13:30 4.00 DHB P DECOMP RIH with 9-5/8" HES EZSV plug. Set plug at 8315' MD, 5' above 9-5/8" collar. POOH and rig down SLB E-line. 13:30 - 14:30 1.00 DHB P DECOMP RU and test 9-5/8" casing to 3500 psi for 30 minutes. Good test. Rig down and blow down lines. 14:30 - 17:30 3.00 STWHIP P WEXIT MU 9-5/8" Whipstock BHA to include: Anchor, Whipstock Slide, Window Mill, Lower String Mill, Flex Joint, Upper String Mill, HW, Sub, MWD, UBHO, Bumper Sub, and Drill Collars. RIH to 983' 17:30 - 18:30 1.00 STWHIP P WEXIT Perform a shallow test on MWD equipment at 983'. 18:30 - 23:00 4.50 STWHIP P WEXIT RIH with 9-5/8" Whipstock BHA to 8268' MD on 4" drill pipe stands at 90 seconds/stand. 23:00 - 00:00 1.00 STWHIP P WEXIT Displace the wellbore from seawater to 9.0 ppg LSND drilling fluid. 442 gpm, 1082 psi. 2/11/2008 00:00 - 00:30 0.50 STWHIP P WEXIT Continue to Displace well to 9.0 PPG LSND drilling fluid. 442 gpm, 1082 psi. 00:30 - 01:00 0.50 STWHIP P WEXIT Unable to obtain MWD signals. Adjust pump rates between 0 gpm and 600 gpm several times. Eventually recieved good signals. Surface indicator confirmed that the modulator was jammed. 01:00 - 02:00 1.00 STWHIP P WEXIT Orient Whipstock to 60 degrees right of high side. Set down 14K to shear Whipstock anchor. Set down 20K to ensure good set. Pick up and observe 5K overpull (anchor is set). Set down 38K to shear mill from Whipstock slide. Top of window at 8282' MD. _ Printed: 3/12/2008 11:46:34 AM i BP EXPLORATION Page 4 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABOBS ALASKA DRILLING I Rig Release: Rig Name: NABOBS 7ES Rig Number: Date From - To ', Hours Task Code NPT Phase Description of Operations 2/11/2008 102:00 - 18:00 16.00 STWHIPI P 18:00 - 19:30 I 1.501 STWHIPI P >-a~d13 ~o~l-o WEXIT WEXIT 19:30 - 20:30 1.00 STWHIP P WEXIT 20:30 - 21:15 0.75 STWHIP P WEXIT 21:15 - 00:00 2.75 STWHIP P WEXIT 2/12/2008 00:00 - 00:30 0.50 STWHIP P WEXIT 00:30 - 02:30 2.00 STWHIP P WEXIT 02:30 - 03:30 1.00 STWHIP P WEXIT 03:30 - 05:00 1.50 STWHIP P WEXIT 05:00 - 05:30 0.50 STWHIP P WEXIT 05:30 - 08:30 3.00 STWHIP P WEXIT 08:30 - 10:00 1.50 STWHIP P WEXIT 10:00 - 10:30 0.50 STWHIP P WEXIT 10:30 - 20:30 10.001 DRILL P INTi 20:30 - 00:00 3.50 ~ DRILL P I INT1 Mill 8.5" window from 8282' MD to 8328'. 531 gpm, 1764 psi off, 1860 psi on, 114 RPM, 6.4K TO on, 4K TO off, PU 150K, SO 144K. Drill 29' of formation to clear upper mill through window. Work mills through window with and without circulation and rotation. Noted 3K drag and 1 K of additional torque at 8299'. Circulated a 40 bbls super sweep pill while reciprocation pipe from 8328' to 8278'. 536 gpm, 1822 psi, 70 RPM, 4K torque, 145K ROT. Work pipe through window with no circulation or rotation. No drag or additional torque. Total metal recovered: 223 lbs. Pull above window and perform a FIT to 11.3 ppg EMW. FIT good. Monitor well: static. Pump a dry job. Rig down and blow down circulating lines. POOH from 8243' MD to 1556' MD racking back stands of 4" drill pipe. Continue to POH to 824' standing back 4" drill pipe. POH Stand back HW drill pipe. Lay down 9 drill collars. Gage Baker window mills. Top mill full gage. Break out and lay down window mills. Run a jetting tool and jet the BOP stack to remove any metal cuttings. PJSM with SLB DD, MWD hand and rig crew. MU 8.5" drilling BHA to include:8.5" Hycalog PDC bit, 1.5 deg. bent housing motor, MWD, ADN6 (SLB utra-sonic caliper tool for functionality test), spiral DC's, jars, and HW. RIH to 714'. Shallow test MWD. 500 gpm, 800 psi. PU 4" drill pipe singles and RIH to 3581'. RIH to 8200' w/drillpipe f/derrick. Establish circulation, obtain ECD baseline, orient tool face 60 deg right of high side with MWD. Slide through window with no problem and RIH to 8328'. Drill/slide (/8328' to 9130'. MW 9.2 ppg. 12K WOB, 550 gpm, 3000 psi on, 2740 psi off, 5K tq on, 4K tq off, 160K PU, 135K SO, 140K ROT, 80 rpm. 10.7 ppg talc. ECD, 11.00 ppg actual ECD. Drill/slide f/9130' to 9411'. Began adding 13.5 ppg LSND spike fluid to 9.2 ppg mud at 9130'. Increased mud wt to 10.4 ppq .prior to penetrating HRZ/Kingak shales; 15K WOB, 550 gpm, 3301 psi on, 2940 psi off, 6K tq on, 4K tq off, 170K PU, 140K SO, 145K ROT, 80 rpm. 10.97 ppg talc. ECD, 11.69 ppg actual ECD. ART f/24 hrs = 8.59 hrs. AST = 3.42 hrs. ART = 5.17 hrs. Drilling progress = 1083' f/24 hrs. Printed: 3/12/2008 11:46:34 AM ~ ~ BP EXPLORATION Page 5 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: Rig Name: NABORS 7ES Rig Number: Date ~ From - To Hours I Task Code NPT Phase Description of Operations ~ -- 2/12/2008 20:30 - 00:00 3.50 DRILL P INT1 GR log recording at higher than expected levels for Colville sections. Well site geo noted that CM1 and HRZ tops predicted in Geologic Prognosis in D-26 Well Plan were incorrectly prognosed. Bottom of window placed at 8299' as ~ per latest D-26B well plan. Top of HRZ encountered 31' after bottom of window at 8330'. This was noted when well site geo correlated log of CM1 thru HRZ GR log sections from well D-01 with D-266 log. The window was milled 31' above the top of the HRZ shales. 2/13/2008 00:00 - 06:00 6.00 DRILL P INT1 Drill/slide f/9411' to 9825'. 15K WOB, 500 gpm, 2872 psi on, 2633 psi off, 7K tq on, 5K tq off, 173K PU, 143K SO, 155K ROT, 80 rpm. 10.95 ppg calc. ECD, 11.2 ppg actual ECD. 06:00 - 08:30 2.50 DRILL P INT1 Drill/slide f/9825' to 9908'. 15K WOB, 500 gpm, 2890 psi on, 2710 psi off, 6K tq on, 5K tq off, 180K PU, 145K SO, 155K ROT, 80 rpm. Per geo shut down. 08:30 - 10:30 2.00 DRILL P INT1 Circulate for samples per geo. CBU x 2, 500 gpm, 2660 psi. Per geo TD intermediate section at 9908' MD. 8486' TVD. 10:30 - 11:30 1.00 DRILL P INTi Short trip f/TD 9908' to 9 5/8" window at 8282'. MW = 9.4 ppg. No pumps required, no swabbing, no difficulty POH. Clear indication of BHA entering window with slight overpull. 11:30 - 12:00 0.50 DRILL P INT1 Service topdrive and rig. 12:00 - 13:00 1.00 DRILL P INTi RIH f/window at 8282' to 9840' w/no hole problems encountered. Taking weight at 9840' 13:00 - 14:00 1.00 DRILL P INTi Wash/ream f/9840' to TD at 9908'. Wipe ledges clean. Work pump rates up to 500 gpm, 2960 psi. 80 rpm, 180 PU, 145 SO, 160 ROT. No fill on bottom. 14:00 - 16:45 2.75 DRILL P INTi Circulate Hi-Vis sweep surface to surface. 502 gpm, 2910 psi, 80 rpm, 5K tq, 185K PU, 150K SO, 160 ROT. 10.9 calculated ECD, 10.85 actual ECD. Splintes of Kingak Shale comming over shakers, circulate to clean up. Total of 1730 bbls circulated, 3 bottoms up. 16:45 - 18:30 1.75 DRILL P INT1 Monitor well. MW = 9.4 ppg. POH f/9908' to 8265'. 15K overpull at 9144' and 8870'. RIH and wipe both sections w/no drag down or overpull coming up. 18:30 - 19:00 0.50 DRILL P INTi Pump dry job. Drop 2.25" drift. Blow down topdrive. 19:00 - 22:00 3.00 DRILL P INTi POH (/8265' to BHA at 714'. 22:00 - 22:30 0.50 DRILL P INTi LD 17 jts 4" HWDP. 22:30 - 00:00 1.50 DRILL P INT1 PJSM. LD BHA # 3. 2/14/2008 00:00 - 00:30 0.50 DRILL P INT1 Continue to LD drilling BHA #3. Stabilizers and bit checked and in gage. OK. Bit graded 1-1-WT-A-X-I-No-TD. 00:30 - 03:00 2.50 CASE P LNR1 Change out rams to 7" and test to 250 psi low aressure and 3500 si hi h ressure w/cha . 03:00 - 05:00 2.00 CASE P LNR1 Install wear ring. RU 7" liner running equipment. 05:00 - 07:00 2.00 CASE P LNR1 PJSM. PU shoetrack. Bakerlok jts 1,2,3. Dress thread damage on shoe track. RIH. Check floats. OK. 07:00 - 10:00 3.00 CASE P LNR1 Run 7" liner f/120' to 1859'. Average tq. = 7900 ft/Ibs. Fill liner every 10 jts. 10:00 - 10:30 0.50 CASE P LNR1 MU 7" x 9-5/8" HMC liner hanger2XP liner top packer/C2 running tool w/rotating dog sub to 7" liner and circulate 106 rnncea: aiiucwo irro:.r'ruv~ • A BP EXPLORATION Page 6 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: Rig Name: NABORS 7ES Rig Number: Date From - To Hours I Task Code NPT Phase Description of Operations 2/14/2008 10:00 - 10:30 0.50 CASE P LNR1 bbls, 252 gpm, 200 psi. 10:30 - 15:00 4.50 CASE P LNR1 RIH (/1859' to 8264' w/drillpipe from derrick filling pipe every 20 stands. 15:00 - 16:30 1.50 CASE P LNR1 Circulate above 9-5/8" window. Stage pump rates up to 252 gpm, 655 psi. 16:30 - 17:30 1.00 CASE P LNR1 RIH (/8264' to 9610'. See drag and overpull of 20K at 9610'. 17:30 - 18:30 1.00 CASE P LNR1 PU 185K, SO 140K. Wash liner down f/9610' and tag bottom at 9908'. 42 gpm, 230 psi. 18:30 - 19:00 0.50 CASE P LNR1 MU top drive cementing head. PU off bottom 1' to 9907'. 19:00 - 21:30 2.50 CEMT P LNR1 Stage up pump rates: 126 gpm/490 psi, 168 gpm/615 psi, 210gpm/769 psi. PJSM w/Schlumberger, Baker, all hands, BP WSL, NAD tourpusher. 21:30 - 00:00 2.50 CEMT P LNR1 Pump 5 bbls H2O w/Schlumberger pumps to floor and out tee to flow line. Shut in. Test lines to 4000 psi and walk lines. Pump mud push to rig floor w/Schlumberger pumps and overboard all H2O in lines via tee at floor. Pump a total of 40 bbls 10.5 ppg mud push down hole 210 gpm. At 21:31 start to mix and pump 74 bbls of 15.8 ppg class G tail slurry plus additives at 252 gpm. Shut down. Drop drill pipe wiper dart and note plug drop indicator trip. Total displacement = 147 bbls. Pump first 10 bbls of H2O displacement w/Schlumberger pumps at 5 bpm to flush lines and pumps. Switch to rig and pump 137 bbls 10.4 ppg LSND mud. See drill pipe wiper dart. catch liner wi er lu and shear off as ex ected. Slow pumps to 126 gpm 5 bbls before expected plug bump. See plugs bump landing collar as expected. FCP = 1000 psi at 126 gpm. -Full returns throu hout'ob. Bring pressure up to 3200 psi and hold f/3 mins. SO 60K to check liner hanger. Hanger holding. Bleed off pressure to zero and check floats for bleedoff back to surface. Floats holding. Rotate 15 turns right at the tools to release C-2 running tool, pressure up to 1000 psi. PU until PBR packoff cleared liner top extension sleeve and pressure bled off to 0 psi. Circulate cement 30 bbls above liner top. SO 60K on rotating dog sub w/no rotation and see liner top packer shear at surface. PU rotating dog sub clear of liner top and rotate at 20 rpm. SO rotating w/60K to confirm ZXP packer set. PU 20' to clear liner top w/stinger and put NOGG mark on drill pipe. Circulate cement out of well at 336 gpm while reciprocating w/20' strokes. Mud push seen at surface and 3 ~ 40 bbls of contaminated mud bbls of reen cement noted. noted. At 23:50 shut down and lay down cementing head and 1 single. Tie in top drive and continue to circulate/reciprocate 40' w/top drive. Added sodium bicarbonate and citric acid to LSND mud and circulated 422 gpm, 1386 psi surface to surface to contaminate residual cement. 2/15/2008 00:00 - 02:00 2.00 CEMT P LNR1 Continue to circulate 422 gpm, 1350 psi surface to surface. Overboarding all returns. 02:00 - 06:00 4.00 CEMT P LNR1 Pump dry job. POH w/liner running tools. Indicator screws on rotating dog sub sheared. 06:00 - 07:00 1.00 BOPSU P PRODi ND/NU Change out top 7" rams to 3.5" x 6" variables. 07:00 - 08:00 1.00 BOPSU P PROD1 Test top rams w/4" and 4.5" test jts. to 250/3500 low/high psi. 08:00 - 08:30 0.50 BOPSU P PRODi RD test equipment. Install wear bushing. LD test jt. 08:30 - 11:00 2.50 DRILL P PROD1 PU 6-1/8" drilling BHA #4 w/MX-18HDX, 7/8 3 stage Motor Pnntetl: 3/12/2008 11:48:34 AM • BP EXPLORATION Operations Summary Report Legal Well Name: D-26 Page 7 of 12 ~ Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABOBS ALASKA DRILLING I Rig Release: Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 2/15/2008 08:30 - 11:00 ~ 2.50 DRILL P PROD1 1.5ABH, Bypass Sub w/float, NM STRING STAB, NM Flex 11:00 - 15:30 4.50 DRILL P 15:30 - 17:00 1.50 DRILL P 17:00 - 17:45 0.75 DRILL P 17:45 - 18:00 0.25 DRILL P 18:00 - 21:30 3.50 DRILL P 21:30 - 00:00 I 2.501 DRILL I P 2/16/2008 00:00 - 00:30 00:30 - 01:00 01:00 - 02:00 02:00 - 06:00 06:00 - 21:00 21:00 - 00:00 0.50 DRILL P 0.50 DRILL P 1.00 DRILL P 4.00 DRILL P 15.00 DRILL P 3.00 DRILL P 2/17/2008 100:00 - 01:00 01:00 - 01:30 01:30 - 04:30 04:30 - 05:00 05:00 - 05:30 05:30 - 07:00 07:00 - 11:30 11:30 - 12:30 12:30 - 17:15 17:15 - 18:00 18:00 - 00:00 1.00 DRILL P 0.50 DRILL P 3.00 DRILL P 0.50 DRILL P 0.50 DRILL P 1.50 DRILL P 4.50 DRILL P 1.00 DRILL P 4.75 DRILL P 0.75 DRILL P 6.00 DRILL P Lead DC, Impulse MWD, 3 NM Flex DC, Ball Catcher, CCV, SHORT STEEL DC, XO, Hyd Jars, HWDP. RIH to 255'. PROD1 RIH w/4" drill pipe f/255' to 9621'. Shallow tested MWD at 1211'. PROD1 RU test a ui ment and test casin to 3500 si and hold for 30 mins w/chart. RD test a ui ment. PROD1 Cut and slip 103' of drilling line. Service rig and topdrive. PROD1 RIH f/9621' to 9730' and tag up on cement stringers. PROD1 Drill cement f/9730' to 9897'. Tag up and drill plugs/landing collar at 9823'. 200 gpm, 1455 psi. 200 gpm, 1455 psi, 30 rpm, 8K tq. PROD1 Displace well f/10.4 LSND mud to 8.4 ppg Flo-Pro. 250 gpm, 1120 psi. Pump 100 bbls H2O and 50 bbl spacer pill between LSND and FloPro SF. PROD1 Continue to displace well to 8.4 ppg Flo-Pro SF mud. 250 gpm 1150 psi. PROD1 Ta u on shoe and drill out at 9908' and drill new hole to ' 242 gpm, 1183 psi, 40 rpm. Pull back above 7" shoe at 9908'. PROD1 Perform FIT to 9.5 ppq EMW w/8.4 ppq mud, 8489' TVD w/486 si. PROD1 Drill/slide f/9929' to 10060'. 15K WOB, PU 152K, SO 128K, ROT 138K, 250 gpm, 1350 psi on, 1260 psi off, 40 rpm, 4K tq on, 3K tq off. PROD1 Drill/slide f/10060' to 10951'. 15K WOB, PU 180K, SO 145K, ROT 138K, 250 gpm, 1585 psi on, 1430 psi off, 40 rpm, 4K tq on, 3K tq off. PROD1 CBU x 2, 40 rpm, 281 gpm, 1490 psi, 4K tq, PU 180K, SO 145K, ROT 157K, until clean across shakers per mud engineer. Pull 1 stand/hr. Reciprocate 30'. ADT f/24 hrs = 14.41 hrs. AST = 10.17 hrs. ART = 4.24 hrs. Progress = 1043' f/24 hrs. PROD1 Monitor well and POH (for RSS BHA #5) to shoe at 9908'. MW = 8.4 pPg• PROD1 Drop ball, circulate 2 bpm, open CCV w/1382 psi, pump dry job. PROD1 POH f/9908' to 255'. Drop actuator ball and close CCV 1305 psi. PROD1 LD drilling BHA #4. Clear floor. PROD1 Service rig, service topdrive, service Koomey system. PROD1 PJSM on Nuke safety before loading nukes. PU 6-1/8" Schlumberger RSS BHA #5 w/Hycalog RSX613 PDC BIT. PRODi RIH f/ 267' to 10320' and encounter undergage hole. PRODi Wash and work tight hole f/10320' to bottom at 10951'. 230 gpm, 1220 psi, 180K PU, 145K SO. PROD1 MAD Pass f/10951' up to 10658' at 100'/hr per geo. 245 gpm, 1544 psi, 180K PU, 145K SO. PROD1 RIH to 10951' and MAD Pass up to 10900' at 250'/hr per geo. 245 gpm, 1544 psi, 180K PU, 145K SO. RIH to 10951'. PROD1 Drill directionally w/RSS f/10951' to 11220'. 15K WOB 271 gpm, 1840 psi on, 1824 psi off, 6K tq on, 4K tq off, 180K PU, Printed: 3/12/2008 11:46:34 AM ~ r BP EXPLORATION Page 8 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: Rig Name: NABORS 7ES Rig Number: Date ~ From - To Hours ~! Task Code NPT Phase Description of Operations _ -- 2/17/2008 --_ 18:00 - 00:00 6.00 DRILL P PROD1 140K SO, 160K ROT 120 rpm. ADT = 4.4 hrs f/24 hrs. ART = 4.4hrs. AST =Not possible. Progress in 24 hrs = 299'. 2/18/2008 00:00 - 00:30 0.50 DRILL P PRODi Drill directionally w/Schlumberger RSS f/11220' to 11234'. 15K WOB 271 gpm, 2309 psi on, 1840 psi off, 9K tq on, 4K tq off, 180K PU, 140K SO, 162K ROT 120 rpm. Noted erratic torque on bottom from 4K to 9K at 00:05. Torque on bottom dropped gradually back to 4K at 00:10 and pressure on bottom climbed f/1840 psi to 2309 psi during the same period. ROP = 0. 00:30 - 03:30 3.00 DRILL P PROD1 CBU for samples. Per geo only small trace of metal found consistent w/normal drilling operations. Fine filings and no chunks found on ditch magnets. Mix and pump 40 bbl./25 Ib./bbl medium nut plug w/screen klene sweep to clear bit. When sweep around attempt to drill w/no improvement in parameters. ROP=O. 03:30 - 04:30 1.00 DRILL P PROD1 CBU x 2 to condition mud and clean up well bore per mud engineer. MW = 8.5 ppg. 04:30 - 08:30 4.00 DRILL P PRODi Monitor well. POH f/11234' to 9927' and pump dry job. Continue to POH for bit check to 267'. 08:30 - 09:30 1.00 DRILL P PROD1 PJSM w/Schlumberger on nuke handling safety. Remove nuke sources. Continue to LD RSS BHA #5. Bit graded 8-1 and in gage. Water courses and center cutting structures worn away completely. Matrix on face of bit worn to within 1/8" of level of jets. 09:30 - 10:00 0.50 BOPSU P PROD1 Pull wear bushing, install test plug and RU to perform BOP test. 10:00 - 15:00 5.00 BOPSU P PRODi Test BOPS to 250/3500 low/high pressure w/4", 4.5", and 2-7/8" test jts. Test witnessed by BP WSL Duncan Ferguson and NAD TP Larry Wurdeman. AOGCC rep John Crisp waived AOGCC presence at the test. Set wear bushing 15:00 - 15:30 0.50 BOPSU P PROD1 Set wear bushing. BD choke, manifold, kill lines. 15:30 - 17:30 2.00 DRILL P PROD1 PJSM w/Schlumberger and all hands on nuke handling safety. Load nuke sources. RIH w/drilling BHA #6 w/Hughes 6-1/8" tri-cone MXR18-DX and AIM PDM 1.50 degree motor assembly to 286'.. 17:30 - 22:00 4.50 DRILL P PROD1 RIH to f/286' to 1237' and shallow test MWD. Continue to RIH to 9843'. 22:00 - 23:00 1.00 DRILL P PROD1 Cut and slip 81' of drilling line. Service rig and topdrive. 23:00 - 00:00 1.00 DRILL P PROD1 RIH f/9843' to 11234'. Work through 20K drag at 10380' and 10971' without pumps. Wash f/11181' to 11234', 271 gpm, 1536 psi, 180K PU, 145K SO. No fill found. 2/19/2008 00:00 - 03:00 3.00 DRILL P PROD1 Drill/slide directionally f/11234' to 11,400'. WOB 16K, 272 gpm, 1670 psi on, 1540 psi off, 34 rpm, 7K tq on, 5.5K tq on. 03:00 - 06:00 3.00 DRILL P PROD1 Drill/slide directionally f/11,400'to 11620. WOB 16K, 282 gpm, 1750 psi on,1690 psi off, 60 rpm, 7.5K tq on, 6.5K tq off. 06:00 - 11:30 5.50 DRILL P PROD1 Drill/slide directionally f/to 11620' to 11946'. WOB 25K, 280 gpm, 1695 psi on,1630 psi off, 80 rpm, 8K tq on, 6K tq off. ROP=Oat 11:30. 11:30 - 13:30 2.00 DRILL P PROD1 Circulate/reciprocate 11946' to 11850' to clean up hole for bit trip. 279 gpm, 1620 psi, 84 rpm, 5K tq. 185K PU, 140K SO, 160K ROT. Pump 823 bbls. SD. 13:30 - 15:00 1.50 DRILL P PROD1 Blow down top drive, drop 1.76" operating ball to CCV. Open Printed: 3/12/2008 11:46:34 AM ~ ~ BP EXPLORATION Page 9 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABOBS ALASKA DRILLING I Rig Release: Rig Name: NABOBS 7ES Rig Number: Date From - To 'Hours Task Code NPT Phase Description of Operations 2/19/2008 13:30 - 15:00 1.50 DRILL P PROD1 CCV w/1980 psi. 15:00 - 19:30 4.50 DRILL P PRODi POH f/11964' to BHA at 286'. 19:30 - 21:30 2.00 DRILL P PROD1 PJSM on nuke handling safety w/Schlumberger. Handle nukes. LD BHA #6. Bit graded 3, 7, LT, H, E, 4, SD, PR. 21:30 - 22:30 1.00 DRILL P PROD1 Downlink MWD. Errors found w/downlink data. 22:30 - 00:00 1.50 DRILL P PROD1 Begin PU BHA #7 new Hughes MXRI8DX and 1.5 deg AIM PDM motor assembly. Note: BHA # 6 CCV valve pulled had o-ring extruded and protruding from all four circulating ports of tool. Could not determine if o-ring was f/CCV or extraneous material. Contacted Kenai supplier. No replacement tool or service available on No. Slope. CCV left out of BHA #7. 2/20/2008 00:00 - 01:00 1.00 DRILL N SFAL PRODi Wait on new MWD tool f/Deadhorse. 01:00 - 02:00 1.00 DRILL P PROD1 Program MWD. PJSM on nuke safety w/Schlumberger. Continue PU BHA #7. load nukes and RIH to 286'. 02:00 - 05:30 3.50 DRILL P PROD1 RIH w/BHA #7 f/286' to 9844'. (Shallow test MWD at 1200'.) 05:30 - 06:00 0.50 DRILL P PROD1 Service rig, topdrive, adjust brakes on draw works. 06:00 - 07:00 1.00 DRILL P PROD1 RIH f/ 9844' to 11945'. 07:00 - 08:30 1.50 DRILL N DPRB PROD1 Attempt to circulate. Pressure above normal regimen. 3945 psi, 106 gpm. All flow out bypass sub. Work string. No relief. Cycle pressure several times. No relief. 08:30 - 09:30 1.00 DRILL N DPRB PROD1 MW 8.5 ppg. POH w/BHA #7 to 9832'. 09:30 - 10:00 0.50 DRILL N DPRB PROD1 Attempt to unplug motor. Circulate. 3906 psi, 114 gpm. All flow out bypass sub. 10:00 - 14:30 4.50 DRILL N DPRB PROD1 POH f/9832' to 286'. 14:30 - 15:30 1.00 DRILL N DPRB PROD1 LD BHA #7. PJSM w/Schlumberger on nuke safety. Handle nukes. LD rest of BHA #7 and find chert (per geo) wellbore cuttings completely plugging off top of AIM PDM motor. 15:30 - 17:30 2.00 DRILL N DPRB PROD1 PU BHA #8. Hughes MXRI8DX (rerun f/BHA#7) and 1.5 deg AIM PDM motor assembly. Exchange bypass sub for Baker ported sub. PJSM w/Schlumberger on nuke safety. Handle nukes. RIH w/BHA to 283'. 17:30 - 18:15 0.75 DRILL N DPRB PROD1 RIH f/283' to 1239' and shallow test MWD. 196 gpm, 497 psi. PU 50K, SO 50K. 18:15 - 22:30 4.25 DRILL N DPRB PROD1 RIH f/1239' to 11847'. 22:30 - 23:00 0.50 DRILL N DPRB PROD1 Wash down f/11847' to to 11946'. 145 gpm, 815 psi, PU 180K, SO 135K. 23:00 - 00:00 1.00 DRILL P PRODi Drill/slide (/11946' to 11981'. PU 180K, SO 135K, ROT/NA. 1428 psi on, 1400 psi off. Stabilize ROP and control drill max. 80'/hr per DD. 2/21/2008 00:00 - 03:30 3.50 DRILL P PRODi Drill/slide f/11981' to 12134'. PU185K, SO 138K, ROT 155K, 240 gpm, 1460 psi on, 1400 psi off, 60 rpm, 8K tq on, 5.5K tq off. 10K-15K WOB. 03:30 - 06:00 2.50 DRILL P PROD1 Drill/slide f/12134' to 12220'. PU185K, SO 138K, ROT 155K, 240 gpm, 1475 psi on, 1405 psi off, 60 rpm, 8K tq on, 6K tq off. 10K-15K WOB. 06:00 - 12:00 6.00 DRILL P PROD1 Drill/slide f/12220' to 12500'. PU187K, SO 140K, ROT 155K, 250 gpm, 1520 psi on, 1430 psi off, 60 rpm, 8.5K tq on, 6K tq off. 10K-15K WOB. TD section per geo. 12:00 - 15:00 3.00 DRILL P PROD1 Circulate and condition hole per mud engineer. Reciprocate f/12500' to 12416' and circulate 35 bbls 10.6 ppg weighted Safecarb 250 sweep. 105 rpm, 6k tq, 240 gpm, 1397 psi, PU 187K, SO 140K, ROT 160K. Circulate 865 bbls around until Printetl: ;3/12/2008 11:46:34 AM ~ ~ BP EXPLORATION Page 10 of 12 ~ Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABOBS ALASKA DRILLING I Rig Release: Rig Name: NABOBS 7ES Rig Number: Date I From - To I Hours I Task I Code I NPT I Phase Description of Operations 2/21/2008 12:00 - 15:00 3.00 DRILL P PROD1 clean across shakers per mud engineer. Take SPRs. 15:00 - 16:15 1.25 DRILL P PROD1 Back ream f/12500' to 11900'. Survey every stand f/JORPS. 235 gpm, 1295 psi, 100 rpm, 5K tq, PU 185K, SO 140K, ROT 155K. 16:15 - 20:00 3.75 DRILL P PROD1 Pump out of hole f/11900' to 9840'. Survey every stand f/JORPS. 242 gpm 1159 psi, PU 170K, SO 147K. 20:00 - 22:15 2.25 DRILL P PROD1 Drop 1/875" ball/rod to Baker circ sub. Open sub at 2186 psi. Pump out of hole f/bit depth of 9840' to 8250' w/circ sub at 7" liner top/8058'. PU 144K, SO 125K, 314 gpm, 642 psi. 22:15 - 23:30 1.25 DRILL P PROD1 Circulate a 50 bbl HiVis sweep surface to surface through circ sub. Position sub to reciprocate (/8065' to 8045' across liner top at 8058' and clean liner top w/bit depth at 8250'. 550 gpm, 1365 psi, PU 144K, SO 125K. Pump 715 bbls. 23:30 - 00:00 0.50 DRILL P PRODi Monitor well. Pump dry job. BD top drive. 2/22/2008 00:00 - 02:30 2.50 DRILL P PROD1 POH f/8250' to 283'. 02:30 - 04:00 1.50 DRILL P PROD1 PJSM w/Schlumberger on nuke safety and handle nukes. LD BHA #8. Clear floor. 04:00 - 05:00 1.00 CASE P RUNPRD RU 4.5" casing running equipment wlTorque Turn f/TCII. 05:00 - 05:30 0.50 CASE P RUNPRD PU and BakerLok shoetrack, jts 1,2,3. RIH and check floats. 05:30 - 11:00 5.50 CASE P RUNPRD PU and RIH w/68 jts of 4.5" 12.60# L-80 TCII liner. Torque Turn to 3850 ft. lbs. 11:00 - 12:00 1.00 CASE P RUNPRD MU Baker ZXP linertop packer/Flexlock liner hanger assembly to liner and circulate 1.5 liner volumes. Stage pumps up to 5 bpm, 155 psi, from 4 bpm, 145 psi, 3 bpm 135 psi. PU 58K, SO, 58K. 12:00 - 13:00 1.00 CASE P RUNPRD RIH w/liner on 4" drill pipe f/derrick. Filling pipe every 10 stands. Wash pipe on top drive leaking. SD. BD. 13:00 - 15:00 2.00 CASE N RREP RUNPRD PJSM. Change out top drive wash pipe packing. Test packing to 2500 psi. BD top drive. 15:00 - 19:00 4.00 CASE P RUNPRD RIH wAiner f/3683' to 7" shoe at 9907'. 19:00 - 20:00 1.00 CASE P RUNPRD Circulate 1.5 x liner/drill pipe volumes (170 bbls.) stage pumps up ibpm/280 psi, 2 bpm/326 psi, 3 bpm/386 psi, 4 bpm/455 psi, 5 bpm/530 psi. PU 155K, SO 137K. BD top drive. 20:00 - 22:00 2.00 CASE P RUNPRD RIH w/liner f/9907 to 12475'. PU/RU TD cementing/plug dropping head, MU manifold and hoses and wash to 12500'. No fill encountered. 22:00 - 00:00 2.00 CASE P RUNPRD Circulate and condition mud. Circulate 1st 70 bbls and stage pumps up 1 bpm/470 psi, 2 bpm/550 psi, 3 bpm/650 psi., 4 bpm/755 psi, 5 bpm, 910 psi. Reciprocate pipe throughout.., PJSM w/Schlumberger, all hands, BP WSL, NAD tourpusher while circulating. During all pumping losses averaged 3 bbls/hr w/29 bbls lost to well bore 12:00 to 23:59 while runnin liner. 2/23/2008 00:00 - 01:00 1.00 CEMT N CEMT RUNPRD Wait to complete batch mixing when chemical mixing difficulties occurred in the batch mixer. 01:00 - 04:00 3.00 CEMT P RUNPRD Cement batch mixed by 01:00. PJSM w/Schlumberger, all ~ hands, NAD Tourpusher, WSL. Bring H2O to floor via 1"valve and bleed off Tee to flowline. No water down hole. Test lines" to 4000 psi and walk lines. Ok. 01:27 mix and pump 30 bbls of 10.5 ppg Mudpush at 168 gpm w/Schlumberger pumps. 01:44 start pumping 74 bbls. of 12.5 ppg LiteCrete Tail cement. SD. Wash Schlumberger lines to Tee and out flowline. No H2O downhole. AT 02:02 bring up rig pumps to drop Baker Drill Printed: 3/12/2008 11:46:34 AM BP EXPLORATION Page 11 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABORS ALASKA DRILLING I Rig Release: Rig Name: NABORS 7ES Rig Number: Date From - To Hours Task i Code NPT Phase 2/23/2008 01:00 - 04:00 3.00 CEMT I P RUNPRD 04:00 - 05:30 1.501 CEMT P RUNPRD 05:30 - 08:30 3.00 CEMT P RUNPRD 08:30 - 12:00 3.50 CEMT P RUNPRD 12:00 - 12:30 0.501 PERFOB P I OTHCMP 12:30 - 13:30 1.001 PERFOB~ P ~ ~ OTHCMP 13:30 - 15:00 1.501 PERFOBI P ~ ~ OTHCMP 15:00 - 18:30 3.50 PERFO~ P OTHCMP 18:30 - 22:00 3.50 PERFO P OTHCMP 22:00 - 23:00 ~ 1.00 ~ PERFOB P ~ ~ OTHCMP Description of Operations Pipe Wiper Dart from top drive cementing head. See indicator trip. Plug away. Displace cement w/55 bbls Flo-Vis pert pill followed w/82 bbl of 8.5 ppg Flo-Pro mud, total f/displacement = 137 bbls. 210 gpm. Reciprocate. Drill Pipe Wiper Dart picked up Liner Wiper Plug and sheared off at 1500 psi. Continue w/displacement of liner at 210 gpm. Slow pumps 3 barrels short of projected plug bump to 126 gpm. Bump plugs on schedule. FCP = 1150 psi. CIP at 02:37. Bring pressure up to 3200 psi to set liner hanger. SO liner wt + 45K and see hanger take weight. Hanger ok. Bleed pressure off thru Tee down flow line and check floats. Floats holding. Break off cementing manifold f/TD head, LD manifold/cementing hoses. Bullplug TD input port w/1502 wing/plug to allow circulation thru topdrive and 40' reciprocation to wipe cement above 4.5" liner top w/tool joints while circulating cement out. Time elapsed to LD TD head and begin circulation = 9 minutes. PU to string weight neutral point and rotate 15 turns at the C2 liner running tool. Pressure up to 1000 psi w/rig pumps. PU 10' to clear PBR seal f/liner top and place Rotating Dog Sub above liner top extension sleeve. Pressure bled to 0 psi. 03:00 circulate 30 bbls to take cement above annulus. 210 gpm, 575 psi. 03:05 SO 60K w/rotating dog sub on liner top and see clear indication at surface that liner top packer set. Pumping at 32 gpm during set down. PU clear of liner top w/rotating dog sub and rotate at 20 rpm. SO 60K while rotating to ensure liner top packer is set. Bring pump rate up f/32 gpm to 210 gpm and PU until plug holder bushing on end of stinger is 30' above liner top and make NOGG mark. All tools clear of liner top. Tool jts have crossed to wipe cement. Bring pump rate up to 450 gpm/1468 psi. Circulate cement out. See Mudpush w/pH of 11.5 and 5 bbls good cement and 30 bbls of cantaminated cement. SD pumps 04:00 Pump 100 bbl freshwater spacer. Displace well f/8.5 ppg Flo-Pro to 8.5 ppg seawater. 500 gpm 1450 psi. POH and LD 102 jts. of drill pipe. POH and stand back 102 stands of drillpipe. LD liner running tools. Clear floor. Test 4.5" liner x 7" liner x 9-5/8" to surface 3500 psi f/30 mins. w/chart. 1000 psi compressive strength on cement at 10:37 per Schlumberger UCA. RU TCP gun handling equipment on floor and load pipe shed w/guns. PJSM. PU and RIH w/1121.50' total, 950' loaded, 171.5' blank, Schlumberger 2-7/8" Power Jet 2906 guns, 6 spf, on 60 deg. phasing. RU 2-7/8" PAC handling equipment. PU and RIH w/51 jts 2-7/8" PAC f/1122' to 2720'. RIH w/drill pipe f/derrick and tag up on float collar as expected at 12413'. PU 13' to put bottom shot at 12400' and top shot at 11300'. PU 170K, SO 143K. Set up choke bleedoff rate. Perform firing sequence per Schlumberger. Guns fired as expected. Lost 10 bbls as guns fired. BD topdrive. Printed: 3/12/2008 11:46:34 AM • • BP EXPLORATION Page 12 of 12 Operations Summary Report Legal Well Name: D-26 Common Well Name: D-26 Spud Date: 1/21/1986 Event Name: REENTER+COMPLETE Start: 2/6/2008 End: Contractor Name: NABOBS ALASKA DRILLING I Rig Release: Rig Name: NABOBS 7ES Rig Number: Date i From - To Hours Task Code ~ NPT Phase Description of Operations ~ ~ I 2/23/2008 23:00 - 00:00 1.00 PERFO P OTHCMP Monitor well. POH to 11226' above top pert. Monitor well f/15 min. 6 bbl/hr loss rate. 2/24/2008 00:00 - 06:00 6.00 PERFO P OTHCMP POH laying down 306 jts 4" HT40 drill pipe. 06:00 - 11:30 5.50 PERFO P OTHCMP POH laying down 1 x 1 51 jts of 2-7/8" PAC, 53 TCP guns, firing head, disconnect. All shots fired. 11:30 - 12:00 0.50 PERFO P OTHCMP Clear floor of all 2-7/8" tubing/gun handling equipment. Hole taking fluid 4 bbls/hr. 12:00 - 13:00 1.00 BUNCO RUNCMP Pull wear bushing. Make dummy run w/ tubing hanger. Verify RKB to tubing spool flange = 25.95'. 13:00 - 14:30 1.50 BUNCO RUNCMP RU 4.5", 13Cr80, 12.60#, Vam Top tubing & completion handling equipment w/"Torque Turn" torque contol equipment, recording unit, and compensator. 14:30 - 00:00 9.50 BUNCO RUNCMP MU tail pipe assembly to packer assembly and RIH w/4.5" 12.6# 13Cr80 Vam Top Completion. Torque Turn set to 4400 ft./Ibs optimum torque. RIH to 6949'. Hole taking fluid at 3 bbls/hr at 23:00. Hole took 72 bbls. fluid for 24 hrs. 2/25/2008 00:00 - 03:30 3.50 BUNCO RUNCMP Continue to RIH w/4.5" 12.6# 13Cr80 Vam Top Completion. Torque Turn set to 4400 ft./Ibs optimum torque. RIH and tag bottom of liner top extension sleeve at 9777'. Hole taking fluid at 3 bbls/hr. 03:30 - 04:30 1.00 BUNCO RUNCMP Space out w/one pup jt below top joint of tubing. PU/MU landing joint w/hanger assy and land completion w/WLEG at 9771' w/5' stun into Liner Top Extension Sleeve. Run in lock down screws per FMC representative. Counte leftover jts 4.5" Vam Top and found 16 as expected. 04:30 - 08:00 3.50 BUNCO RUNCMP Hook up lines and reverse circulate 294 bbls of 8.5 ooo clean seawater w/corrosion inhibitor. Follow w/168 bbls clean seawater w/out corrosion inhibitor. Pumped at no more than 3 bpm to avoid eroding packer elements. 08:00 - 12:00 4.00 BUNCO RUNCMP DrOD ball and rod to RHC plug. LD landing jt. Close blind rams and pressure down drill pipe against ball and rod to 3500 psi to set acker and test tubin and record on chart. Good test. Bleed tubing to 1500 psi. Pressure annulus to 3500 and record test on chart for 30 mins. Bleed off annu us pressure to 0 psi. Bleed off tubing to 0 psi. Pressure up on annulus and shear DCR shear valve at in GLM at 3133' w/2100 psi. Pump both ways to ensure valve open. Install TWC and test to 1000 psi from below via annulus and sheared DCR valve. 12:00 - 14:00 2.00 BUNCO RUNCMP ND BOP. 14:00 - 16:00 2.00 BUNCO RUNCMP NU tree. Test adaptor, hanger, tree to 5000 psi. RU drill site maintenance and pull TWC w/lubricator. 16:00 - 18:00 2.00 BUNCO RUNCMP RU Hot Oil Services and um 152 bbls diesel down IA wh' takin returns to surface via swab valve on tree takin returns direct) to cuttin s box. Shut in. Allow to u-tube to tubin RD hoses. 18:00 - 19:00 1.00 BUNCO RUNCMP Install BPV w/DSM lubricator. Secure well. Release rig at 19:00. Prepare f/move to PT Mac 2-45. rrirnea::ui~zuuu ii:ao::tn~nn ..._. by D-266 Survev Report Schlumberger Client: Shared Services Drilling Fietd: Prudhoe Bay Unit - WOA Structure 1 Slot: D-PAD / D-26 Well: D-26 Borehole: D-266 U W IIAPI#: 500292153002 Survey Name I Date: D-2681 February 22, 2008 Tort I AHD 1 DDf / ERD ratio: 267.353° / 6351.45 ft / 6.372 / 0.705 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Location LaULong: N 7017 44.447, W 148 45 26.318 Location Grid NIE YIX: N 5959272.990 ftUS, E 653463.000 itUS Grid Convergence Angle: +1.16994477° Vertical Section Azimuth: 296.610° Vertical Section Origin: N 0.000 ft, E 0.000 ft TVD Reference Datum: Rotary Table TVD Reference Elevation: 70.52 ft relative to MSL Sea Bed 1 Ground Level Elevation: 42.42 ft relative t0 MSL Magnetic Declination: 23.339° Total Field Strength: 57663.148 nT Magnetic Dip: 80.909° Declination Date: February 15, 2008 Magnetic Declination Model: BGGM 2007 North Reference: TNe Norlh Total Corr Mag North -> True North: +23.339° Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure @ de de R ft ft ft ft ft ft d 1100 ft ftUS ftUS rroleczea-up v.uv u.uu v.vu -/u.~~ u.uu u.uu u.uu u.vu u.uu u.uu u.uv aaaac/~.aa WRP 30.02 0.00 0.00 -40.50 30.02 0.00 0.00 0.00 0.00 0.00 0.00 5959272.99 BOSS Gyro 97.82 1.42 136.70 27.29 97.81 -0.79 0.84 0.84 -0.61 0.58 2.09 5959272.39 197.82 1.07 129.70 127.27 197.79 -2.86 3.01 3.01 -2.11 2.14 0.38 5959270.92 297.82 1.00 137.50 227.25 297.77 -4.59 4.81 4.81 -3.35 3.45 0.16 5959269.71 397.82 1.07 143.00 327.24 397.76 -6.24 6.62 6.61 -4.74 4.60 0.12 5959268.35 497.82 1.12 137.20 427.22 497.74 -7.99 8.53 8.51 -6.20 5.83 0.12 5959266.91 597.82 0.92 118.00 527.20 597.72 -9.71 10.29 10.25 -7.30 7.20 0.39 5959265.84 697.82 0.68 127.81 627.19 697.71 -11.09 11.68 11.61 -8.04 8.38 0.28 5959265.13 797.82 0.87 118.11 727.18 797.70 -12.43 13.03 12.93 -8.76 9.52 0.23 5959264.43 897.82 0.62 96.70 827.18 897.70 -13.70 14.32 14.12 -9.18 10.73 0.37 5959264.03 997.82 0.80 106.61 927.17 997.69 -14.90 15.56 15.22 -9.44 11.93 0.22 5959263.80 1097.82 0.43 118.61 1027.16 1097.68 -15.96 16.63 16.24 -9.82 12.93 0.39 5959263.44 1197.82 0.52 101.61 1127.16 1197.68 -16.77 17.45 17.02 -10.09 13.70 0.17 5959263.18 1297.82 .0.67 122.61 1227.15 1297.67 -17.79 18.48 18.02 -10.50 14.64 0.26 5959262.79 1397.82 0.75 149.81 1327.15 1397.67 -18.92 19.69 19.20 -11.38 15.46 0.34 5959261.93 1497.82 0.55 152.11 1427.14 1497.66 -19.86 20.83 20.24 -12.37 16.02 0.20 5959260.95 1597.82 0.50 144.40 1527.14 1597.66 -20.64 21.74 21.09 -13.15 16.50 0.09 5959260.18 1697.82 0.60 123.90 1627.13 1697.65 -21.54 22.69 22.04 -13.79 17.18 0.22 5959259.55 1797.82 0.68 123.70 1727.12 1797.64 -22.65 23.81 23.15 -14.42 18.11 0.08 5959258.95 1897.82 0.80 144.61 1827.12 1897.64 -23.86 25.08 24.41 -15.31 19.01 0.29 5959258.07 1997.82 0.85 146.40 1927.11 1997.63 -25.12 26.52 25.79 -16.50 19.82 0.06 5959256.90 2097.82 0.80 143.70 2027.10 2097.62 -26.38 27.96 27.18 -17.68 20.65 0.06 5959255.74 OD3403.UU ry /V 7 /44.44/ W 740 4D Y0.37if 653463.00 N 70 17 44.447 W 148 45 26.318 653463.59 N 70 17 44.440 W 148 45 26.301 653465.19 N 70 17 44.426 W 148 45 26.256 653466.52 N 70 17 44.414 W 148 45 26.218 653467.70 N 70 17 44.400 W 148 45 26.184 653468.95 N 70 17 44.386 W 148 45 26.148 653470.35 N 70 17 44.375 W 148 45 26.108 653471.54 N 70 17 44.367 W 148 45 26.074 653472.69 N 70 17 44.360 W 148 45 26.041 653473.91 N 70 17 44.356 W 148 45 26 653475.12 N 70 17 44.354 W 148 45 25~ 653476.13 N 70 17 44.350 W 148 45 25.941 653476.91 N 70 17 44.347 W 148 45 25.919 653477.85 N 70 17 44.343 W 148 45 25.891 653478.69 N 70 17 44.335 W 148 45 25.867 653479.26 N 70 17 44.325 W 148 45 25.851 653479.76 N 70 17 44.317 W 148 45 25.837 653480.46 N 70 1744.311 W 148 45 25.817 653481.40 N 70 17 44.305 W 148 45 25.790 653482.32 N 70 17 44.296 W 148 45 25.764 653483.16 N 70 17 44.284 W 148 45 25.740 653484.00 N 70 17 44.273 W 148 45 25.716 SurveyEditor Ver SP 2.1 Bld( doc40x_100) D-26\D-26\D-266\D-26B Generated 3/19/2008 3:32 PM Page 1 of 6 Comments Measured Inclination Azimuth Sub•Sea TVD 'ryp Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 700 ft ftUS ftUS z~ar.az u.ou »s.o~ nci.ua nar.oi -[i.va za.ia ca.ao -ia.oa ciso 2297.82 0.43 143.40 2227.08 2297.60 -28.23 30.08 29.23 -19.44 21..83 2397.82 0.67 145.90 2327.08 2397.60 -29.07 31.04 30.17 -20.22 22.38 2497.82 0.95 128.31 2427.07 2497.59 -30.39 32.45 31.56 -21.22 23.36 2597.82 0.97 135.31 2527.06 2597.58 -32.01 34.12 33.23 -22.34 24.61 2697.82 0.75 137.81 2627.04 2697.56 -33.42 35.62 34.73 -23.42 25.64 2797.82 0.47 218.60 2727.04 2797.56 -33.94 36.53 35.41 -24.23 25.82 2897.82 3.08 267.30 2826.99 2897.51 -31.51 39.53 33.66 -24.68 22.88 2997.82 4.80 266.39 2926.75 2997.27 -25.56 46.40 29.75 -25.07 16.03 3097.82 6.35 270.70 3026.27 3096.79 -16.97 56.11 26.04 -25.26 6.32 3197.82 7.05 272.20 3125.59 3196.11 -6.40 67.78 25.53 -24.96 -5.34 3297.82 7.90 273.61 3224.74 3295.26 5.51 80.79 30.43 -24.29 -18.33 3397.82 9.68 275.31 3323.56 3394.08 19.67 96.07 40.73 -23.08 -33.56 3497.82 11.10 278.20 3421.92 3492.44 36.64 114.10 55.56 -20.93 -51.46 3597.82 12.60 278.70 3519.78 3590.30 56.15 134.63 73.98 -17.91 -71.78 3697.82 14.20 279.61 3617.06 3687.58 78.26 157.80 95.71 -14.21 -94.65 3797.82 15.42 279.31 3713.73 3784.25 102.68 183.36 120.28 -10.01 -119.87 3897.82 17.67 280.50 3809.59 3880.11 129.96 211.84 148.00 -5.09 -147.91 3997.82 18.97 281.31 3904.52 3975.04 160.22 243.27 178.78 0.86 -178.77 4097.82 21.13 281.81 3998.45 4068.97 193.33 277.55 212.50 7.74 -212.36 4197.82 22.70 282.31 4091.22 4161.74 229.46 314.87 249.34 15.54 -248.85 4297.82 24.97 282.61 4182.69 4253.21 268.64 355.28 289.33 24.26 -288.31 4397.82 26.85 282.81 4272.63 4343.15 311.05 398.98 332.66 33.88 -330.93 4497.82 29.40 283.61 4360.82 4431.34 356.91 446.11 379.45 44.66 -376.82 4597.82 32.18 284.50 4446.71 4517.23 406.87 497.29 430.27 57.11 -426.46 4697.82 34.52 285.20 4530.24 4600.76 460.69 552.26 484.85 71.21 -479.60 4797.82 38.13 286.11 4610.79 4681.31 518.84 611.49 543.66 87.21 -536.62 4897.82 40.88 286.61 4687.94 4758.46 581.43 675.10 606.82 105.13 -597.65 4997.82 42.62 287.00 4762.55 4833.07 647.05 741.68 672.98 124.39 -661.39 5097.82 43.65 287.00 4835.52 4906.04 714.46 810.06 740.97 144.38 -726.77 5197.82 44.83 287.11 4907.16 4977.68 783.26 879.82 810.41 164.84 -793.47 5297.82 46.73 287.50 4976.90 5047.42 853.98 951.48 881.76 186.16 -861.89 5397.82 47.92 287.70 5044.68 5115.20 926.59 1025.00 954.98 208.39 -931.97 5497.82 48.82 288.50 5111.11 5181.63 1000.51 1099.75 1029.40 231.62 -1003.01 5597.82 49.52 288.61 5176.50 5247.02 1075.43 1175.41 1104.74 255.69 -1074.74 5697.82 50.23 288.90 5240.94 5311.46 1151.18 1251.88 1180.89 280.28 -1147.94 5797.82 50.93 289.20 5304.44 5374.96 1227.75 1329.13 1257.83 305.49 -1220.16 5897.82 51.28 289.20 5367.23 5437.75 1304.93 1406.96 1335.36 331.09 -1293.66 5997.82 50.42 290.70 5430.37 5500.89 1381.95 1484.50 1412.56 357.54 -1366.56 6047.82 47.27 294.70 5463.28 5533.80 1419.49 1522.14 1449.83 372.03 -1401.28 6097.82 46.52 296.40 5497.44 5567.96 1455.99 1558.64 1485.71 387.77 -1434.22 u.t i oyaaca9. r 9 oawoY. i i ~~ i u i i 99.coo rv 190 90 L7.O.7O 0.18 5959254.00 653485.22 N 70 17 44.255 W 148 45 25.682 0.24 5959253.23 653485.79 N 70 17 44.248 W 148 45 25.666 0.37 5959252.25 653486.79 N 70 17 44.238 W 148 45 25.637 0.12 5959251.16 653488.06 N 70 17 44.227 W 148 45 25.601 0.22 5959250.10 653489.11 N 70 17 44.216 W 148 45 25.571 0.82 5959249.29 653489.31 N 70 17 44.208 W 148 45 25.565 2.79 5959248.79 653486.38 N 70 17 44.204 W 148 45 25.651 1.72 5959248.26 653479.53 N 70 17 44.200 W 148 45 25.851 1.60 5959247.86 653469.83 N 70 17 44.198 W 148 45 26.134 0.72 5959247.93 653458.17 N 70 1744.201 W 148 45 2 0.87 5959248.33 653445.17 N 70 17 44.208 W 148 45 2 1.80 5959249.23 653429.92 N 70 17 44.220 W 148 45 27.296 1.51 5959251.02 653411.98 N 70 1744.241 W 148 45 27.818 1.50 5959253.62 653391.61 N 70 17 44.270 W 148 45 28.410 1.61 5959256.85 653368.67 N 70 17 44.307 W 148 45 29.077 1.22 5959260.53 653343.37 N 70 17 44.348 W 148 45 29.812 2.28 5959264.88 653315.23 N 70 17 44.396 W 148 45 30.629 1.32 5959270.20 653284.26 N 70 17 44.455 W 148 45 31.529 2.17 5959276.39 653250.54 N 70 17 44.523 W 148 45 32.508 1.58 5959283.45 653213.90 N 70 17 44.599 W 148 45 33.572 2.27 5959291.36 653174.28 N 70 17 44.685 W 148 45 34.722 1.88 5959300.10 653131.47 N 70 17 44.780 W 148 45 35.964 2.58 5959309.95 653085.38 N 70 17 44.886 W 148 45 37.301 2.82 5959321.38 653035.49 N 70 17 45.008 W 148 45 38.748 2.37 5959334.39 652982.09 N 70 17 45.147 W 148 45 40.297 3.65 5959349.22 652924.75 N 70 17 45.304 W 148 45 41.959 2.77 5959365.89 652863.37 N 70 17 45.480 W 148 45 43.738 1.76 5959383.84 652799.26 N 70 17 45.670 W 148 45 4~ 1.03 5959402.49 652733.49 N 70 17 45.866 W 148 45 4 1.18 5959421.58 652666.39 N 70 17 46.067 W 148 45 49.446 1.92 5959441.50 652597.56 N 70 17 46.277 W 148 45 51.440 1.20 5959462.30 652527.04 N 70 17 46.495 W 148 45 53.483 1.08 5959484.06 652455.55 N 70 17 46.724 W 148 45 55.554 0.70 5959506.67 652383.34 N 70 17 46.960 W 148 45 57.644 0.74 5959529.77 652310.46 N 70 17 47.202 W 148 45 59.755 0.74 5959553.49 652236.95 N 70 17 47.450 W 148 46 1.883 0.35 5959577.57 652162.94 N 70 17 47.702 W 148 46 4.026 1.45 5959602.53 652089.53 N 70 17 47.962 W 148 46 6.151 8.71 5959616.31 652054.52 N 70 17 48.104 W 148 46 7.163 2.90 5959631.37 652021.27 N 70 17 48.259 W 148 46 8.123 SurveyEditor Ver SP 2.1 Bld( doc4Ox_1OO) D-26\D-26\D-26B\D-266 Generated 3/19/2008 3:32 PM Page 2 of 6 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS o ~ar.a[ 9n.aa [ao.o i aaon.[t ooso.rw wta.aa ios i.~w iaoo .aa wc~. i r - i4yy. ~o ~. io oaoaooc.w+ oa iyaa.oo w rv i r wo.ar r vv wo ~-o w.u i r 6297.82 47.17 296.61 5634.57 5705.09 1601.57 1704.23 1628 .67 452.86 -1564.44 0.59 5959693.79 651889.76 N 70 17 48.899 W 148 46 11.919 6397.82 47.33 296.81 5702.45 5772.97 1675.00 1777.66 1700 .91 485.87 -1630.03 0.22 5959725.44 651823.51 N 70 17 49.223 W 148 46 13.832 6497.82 47.80 296.81 5769.93 5840.45 1748.81 1851.46 1773 .59 519.16 -1695.91 0.47 5959757.38 651756.98 N 70 17 49.551 W 148 46 15.752 6597.82 48.17 297.00 5836.86 5907.38 1823.10 1925.76 1846 .83 552.78 -1762.16 0.40 5959789.64 651690.05 N 70 17 49.881 W 148 46 17.683 6697.82 48.10 297.20 5903.60 5974.12 1897.57 2000.23 1920 .28 586.70 -1828.46 0.16 5959822.20 651623.08 N 70 17 50.215 W 148 46 19.616 6797.82 47.95 297.20 5970.48 6041.00 1971.91 2074.57 1993 .66 620.69 -1894.58 0.15 5959854.82 651556.29 N 70 17 50.549 W 148 46 21.544 6897.82 47.63 298.00 6037.67 6108.19 2045.97 2148.64 2066 .76 655.00 -1960.22 0.67 5959887.78 651489.97 N 70 17 50.886 W 148 46 23.457 6997.82 47.13 297.81 6105.38 6175.90 2119.54 2222.23 2139 .38 689.44 -2025.25 0.52 5959920.89 651424.25 N 70 17 51.224 W 148 46 25.353 7097.82 47.18 297.90 6173.38 6243.90 2192.84 2295.55 2211 .82 723.70 -2090.07 0.08 5959953.81 651358.75 N 70 17 51.561 W 148 46 27.243 7197.82 47.12 298.11 6241.39 6311.91 2266.13 2368.86 2284 .28 758.12 -2154.80 0.17 5959986.90 651293.33 N 70 17 51.900 W 148 46 29. 7297.82 46.72 298.11 6309.69 6380.21 2339.14 2441.90 2356 .50 792.54 -2219.23 0.40 5960019.99 651228.22 N 70 17 52.238 W 148 46 31. 7397.82 46.07 298.31 6378.66 6449.18 2411.53 2514.31 2428 .12 826.76 -2283.04 0.67 5960052.91 651163.73 N 70 17 52.574 W 148 46 32.869 7497.82 45.85 298.20 6448.17 6518.69 2483.38 2586.20 2499. 27 860.79 -2346.36 0.23 5960085.64 651099.74 N 70 17 52.909 W 148 46 34.715 7597.82 44.93 298.81 6518.40 6588.92 2554.53 2657.39 2569. 72 894.77 -2408.92 1.02 5960118.32 651036.50 N 70 17 53.243 W 148 46 36.539 7697.82 44.18 299.20 6589.66 6660.18 2624.63 2727.55 2639. 11 928.78 -2470.28 0.80 5960151.08 650974.46 N 70 17 53.577 W 148 46 38.328 7797.82 43.73 298.81 6661.65 6732.17 2693.98 2796.95 2707. 79 962.44 -2530.98 0.53 5960183.48 650913.09 N 70 17 53.908 W 148 46 40.098 7897.82 43.10 298.61 6734.29 6804.81 2762.66 2865.68 2775. 89 995.46 -2591.26 0.64 5960215.26 650852.15 N 70 17 54.232 W 148 46 41.855 7997.82 42.52 298.81 6807.65 6878.17 2830.57 2933.64 2843. 24 1028.10 -2650.86 0.60 5960246.68 650791.90 N 70 17 54.553 W 148 46 43.593 8097.82 42.02 298.81 6881.65 6952.17 2897.78 3000.90 2909. 93 1060.51 -2709.80 0.50 5960277.88 650732.32 N 70 17 54.872 W 148 46 45.311 8197.82 41.68 298.81 6956.14 7026.66 2964.45 3067.62 2976. 10 1092.67 -2768.26 0.34 5960308.83 650673.22 N 70 17 55.188 W 148 46 47.016 Tie-In Survey 8197.82 41.68 298.81 6956.14 7026.66 2964.45 3067.62 2976. 10 1092.67 -2768.26 0.00 5960308.83 650673.22 N 70 17 55.188 W 148 46 47.016 TOW (Blind) 8282.00 41.00 299.00 7019.34 7089.86 3020.01 3123.22 3031. 25 1119.54 -2816.93 0.82 5960334.70 650624.01 N 70 17 55.452 W 148 46 48.435 BOW (Blind) 8299.00 41.00 302.00 7032.17 7102.69 3031.14 3134.37 3042. 27 1125.20 -2826.54 11.58 5960340.16 650614.29 N 70 17 55.508 W 148 46 48.715 End Mill (Blind) 8329.00 40.00 302.00 7054.98 7125.50 3050.53 3153.86 3061. 44 1135.52 -2843.06 3.33 5960350.15 650597.56 N 70 17 55.609 W 148 46 49.197 Inc+trend 8391.77 35.95 302.30 7104.45 7174.97 3088.97 3192.47 3099. 43 1156.07 -2875.76 6.46 5960370.02 650564.45 N 70 17 55.811 W 148 46 50.150 Inc+trend 8487.57 32.00 302.78 7183.88 7254.40 3142.21 3246.00 3152. 06 1184.85 -2920.89 4.13 5960397.87 650518.75 N 70 17 56.094 W 148 46 51.466 MWD+IFR+MS 8583.64 31.13 302.03 7265.74 7336.26 3192.24 3296.28 3201. 54 1211.80 -2963.34 0.99 5960423.95 650475.76 N 70 17 56.359 W 148 46 52.704 8678.29 30.11 299.35 7347.19 7417.71 3240.31 3344.49 3249. 22 1236.42 -3004.78 1.80 5960447.71 650433.83 N 70 17 56.601 W 148 46 53~ 8773.95 29.57 298.61 7430.17 7500.69 3287.87 3392.08 3296. 51 1259.48 -3046.42 0.68 5960469.92 650391.73 N 70 17 56.827 W 14846 55. 8869.88 30.19 297.89 7513.35 7583.87 3335.64 3439.87 3344. 06 1282.10 -3088.52 0.75 5960491.67 650349.18 N 70 17 57.050 W 148 46 56.354 8965.41 30.51 298.31 7595.78 7666.30 3383.89 3488.14 3392. 10 1304.83 -3131.10 0.40 5960513.53 650306.15 N 70 17 57.273 W 148 46 57.595 9060.52 29.56 298.11 7678.12 7748.64 3431.48 3535.75 3439. 48 1327.34 -3173.04 1.00 5960535.17 650263.76 N 70 17 57.494 W 148 46 58.819 9156.37 31.04 297.64 7760.88 7831.40 3479.82 3584.11 3487. 65 1349.94 -3215.79 1.56 5960556.90 650220.56 N 70 17 57.716 W 148 47 0.065 9251.99 29.96 297.80 7843.26 7913.78 3528.35 3632.64 3536. 00 1372.52 -3258.75 1.13 5960578.59 650177.15 N 70 17 57.938 W 148 47 1.318 9346.10 28.81 297.97 7925.26 7995.78 3574.51 3678.81 3582. 00 1394.11 -3299.57 1.23 5960599.34 650135.90 N 70 17 58.150 W 148 47 2.50$ 9442.21 28.16 302.83 8009.75 8080.27 3620.21 3724.63 3627. 42 1417.27 -3339.09 2.50 5960621.69 650095.93 N 70 17 58.378 W 148 47 3.660 9537.67 28.44 303.38 8093.80 8164.32 3665.18 3769.89 3671. 98 1441.99 -3376.99 0.40 5960645.63 650057.52 N 70 17 58.621 W 148 47 4.766 9634.36 28.98 303.74 8178.60 8249.12 3711.29 3816.33 3717. 67 1467.67 -3415.70 0.59 5960670.51 650018.31 N 70 17 58.873 W 148 47 5.894 9730.22 30.45 300.51 8261.86 8332.38 3758.57 3863.84 3764. 61 1492.90 -3455.94 2.27 5960694.91 649977.56 N 70 17 59.121 W 148 47 7.068 9824.95 30.56 299.69 8343.48 8414.00 3806.56 3911.92 3812. 37 1517.02 -3497.54 0.45 5960718.17 649935.48 N 70 17 59.358 W 148 47 8.281 SurveyEditor Ver SP 2.1 Bld( doc40x_100) D-26\D-26\D-266\D-266 Generated 3/19/2008 3:32 PM Page 3 of 6 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure R de de R R R R R R R de 1100 R RUS RUS 7" Csg @9908'md 9845.36 9951.61 9983.07 10016.10 10047.85 10079.67 10112.69 10143.34 10174.89 10207.17 10240.19 10271.04 10303.76 10335.48 70366.75 10399.97 10431.89 10461.99 10495.10 10526.54 10558.23 10590.85 10621.90 10653.74 10687.12 10717.42 10749.00 10781.90 10812.93 10844.78 10877.75 10901.16 10932.86 10964.75 10997.55 11028.78 11060.02 11092.77 11123.74 11155.73 30.11 33.24 34.10 33.30 34.87 38.49 39.24 40.88 44.25 45.31 46.99 50.36 51.45 52.88 57.42 299.64 8361.10 8431.62 3816.86 3922.23 3822.61 1522.12 -3506.50 300.57 8451.51 8522.03 3872.54 3978.02 3878.03 1550.12 -3554.75 300.43 8477.69 8548.21 3889.94 3995.46 3895.34 1558.97 -3569.78 302.47 8505.17 8575.69 3908.20 4013.78 3913.49 1568.53 -3585.41 302.63 8531.47 8601.99 3925.89 4031.58 3931.07 1578.10 -3600.41 303.35 8556.98 8627.50 305.44 8582.69 8653.21 304.27 8606.15 8676.67 303.51 8629.38 8699.90 304.60 8652.30 8722.82 303.62 8675.17 8745.69 302.68 8695.54 8766.06 303.04 8716.17 8786.69 302.64 8735.63 8806.15 302.03 8753.49 8824.01 58.67 303.54 8771.08 8841.60 59.15 301.17 8787.56 8858.08 61.77 298.98 8802.40 8872.92 62.34 298.56 8817.92 8888.44 63.71 295.55 8832.18 8902.70 65.17 292.72 8845.85 8916.37 65.75 292.08 8859.40 8929.92 66.66 287.51 8871.94 8942.46 68.27 284.01 8884.14 8954.66 68.86 283.40 8896.34 8966.86 70.67 281.38 8906.82 8977.34 73.97 281.16 8916.41 8986.93 77.64 280.82 8924.48 8995.00 81.53 280.28 8930.08 9000.60 85.38 279.29 8933.71 9004.23 88.06 277.82 8935.60 9006.12 87.85 275.93 8936.44 9006.96 88.73 272.74 8937.38 9007.90 89.45 269.54 8937.89 9008.41 89.93 268.35 8938.07 9008.59 91.44 268.15 8937.69 9008.21 92.99 266.48 8936.49 9007.01 93.33 264.12 8934.68 9005.20 92.44 263.65 8933.12 9003.64 92.44 265.89 8931.76 9002.28 3944.78 3965.30 3984.83 4005.99 4028.54 4052.14 4075.16 4100.40 4125.30 4150.83 4178.85 4206.05 4232.18 4261.41 4289.42 4317.98 4347.57 4375.77 4404.65 4434.93 4462.49 4491.50 4522.21 4551.54 4581.82 4050.58 4071.30 4091.02 4112.36 4135.10 4158.91 4182.07 4207.47 4232.52 4258.17 4286.36 4313.69 4339.88 4369.13 4397.14 4425.73 4455.40 4483.81 4513.22 4544.29 4572.72 4602.80 4634.69 4665.20 4696.84 3949.83 3970.19 3989.54 4010.56 4032.94 4056.38 4079.25 4104.34 4129.10 4154.50 4182.37 4209.43 4235.48 4264.65 4292.63 4321.21 4350.87 4379.18 4408.25 4438.80 4466.62 4495.96 4527.03 4556.71 4587.40 4613.11 4729.75 4619.17 4635.13 4753.15 4641.57 4664.45 4784.83 4671.49 4693.23 4816.72 4701.00 4722.28 4849.52 4730.89 4749.76 4880.75 4759.23 4776.98 4911.96 4787.38 4804.92 4944.66 4816.40 4830.94 4975.59 4843.54 4858.09 5007.55 4871.86 1588.45 -3616.35 1600.16 -3633.44 1611.43 -3649.63 1623.32 -3667.34 1636.05 -3686.18 1649.40 -3705.89 1662.07 -3725.29 1675.85 -3746.62 1689.43 -3767.67 1703.15 -3789.35 1718.41 -3813.04 1733.04 -3836.13 1746.15 -3858.79 1760.23 -3884.43 1772.97 -3909.38 1784.65 -3935.47 1795.96 -3962.90 1805.57 -3989.63 1813.56 -4017.92 1820.92 -4048.11 1827.01 -4075.88 1832.89 -4105.38 1838.97 -4136.68 1844.56 -4166.68 1849.93 -4197.86 1854.83 -4230.40 1857.63 -4253.63 1860.02 -4285.22 1860.66 -4317.10 1860.05 -4349.89 1859.10 -4381.10 1857.64 -4412.28 1854.96 -4444.87 1851.66 -4475.62 1848.75 -4507.45 2.21 5960723.09 649926.42 N 70 17 59.408 W 148 47 8.542 2.98 5960750.09 649877.61 N 70 17 59.684 W 148 47 9.949 2.74 5960758.63 649862.41 N 70 17 59.771 W 148 47 10.387 4.20 5960767.87 649846.58 N 70 17 59.864 W 148 47 10.843 4.95 5960777.13 649831.39 N 70 17 59.959 W 148 47 11.281 11.46 5960787.16 649815.25 N 70 18 0.060 W 148 47 11.745 4.58 5960798.51 649797.92 N 70 18 0.175 W 148 47 12.244 5.89 5960809.45 649781.51 N 70 18 0.286 W 148 47 12.716 10.80 5960820.98 649763.56 N 70 18 0.403 W 148 47 13.233 4.05 5960833.32 649744.47 N 70 18 0.528 W 148 47 13.782 5.52 5960846.27 649724.48 N 70 18 0.659 W 148 47 14~ 11.16 5960858.53 649704.83 N 70 18 0.784 W 148 47 14. 3.44 5960871.87 649683.23 N 70 18 0.919 W 148 47 15.545 4.62 5960885.02 649661.91 N 70 18 1.053 W 148 47 16.158 14.61 5960898.29 649639.96 N 70 18 1.187 W 148 47 16.791 5.39 5960913.07 649615.96 N 70 18 1.337 W 148 47 17.482 6.53 5960927.22 649592.58 N 70 18 1.481 W 148 47 18.155 10.76 5960939.87 649569.65 N 70 18 1.610 W 148 47 18.816 2.05 5960953.42 649543.73 N 70 18 1.748 W 148 47 19.563 9.58 5960965.64 649518.53 N 70 18 1.874 W 148 47 20.291 9.28 5960976.79 649492.21 N 70 18 1.988 W 148 47 21.052 2.52 5960987.53 649464.56 N 70 18 2.099 W 148 47 21.852 13.78 5960996.60 649437.64 N 70 18 2.194 W 148 47 22.631 11.34 5961004.00 649409.19 N 70 18 2.272 W 148 47 23.456 2.45 5961010.74 649378.86 N 70 18 2.344 W 148 47 24.336 8.65 5961016.27 649350.98 N 70 18 2.404 W 148 47 25.146 10.47 5961021.54 649321.36 N 70 18 2.462 W 148 47 26.006 11.20 5961026.98 649289.94 N 70 18 2.521 W 148 47 26.919 12.65 5961031.95 649259.84 N 70 18 2.576 W 148 47 27 12.48 5961036.69 649228.56 N 70 18 2.629 W 148 47 28 9.27 5961040.92 649195.93 N 70 18 2.677 W 148 47 29.651 8.12 5961043.25 649172.65 N 70 18 2.704 W 148 47 30.329 10.43 5961045.00 649141.02 N 70 18 2.728 W 148 47 31.250 10.28 5961044.98 649109.14 N 70 18 2.734 W 148 47 32.179 3.91 5961043.71 649076.37 N 70 18 2.728 W 148 47 33.135 4.88 5961042.11 649045.19 N 70 18 2.718 W 148 47 34.045 7.29 5961040.02 649014.04 N 70 18 2.704 W 148 47 34.954 7.27 5961036.67 648981.52 N 70 18 2.677 W 148 47 35.904 3.25 5961032.75 648950.84 N 70 18 2.644 W 148 47 36.800 7.00 5961029.19 648919.08 N 70 18 2.616 W 148 47 37.728 SurveyEditor Ver SP 2.1 Bld( doc40x_100) D-26\D-26\D-26B\D-26B Generated 3/19/2008 3:32 PM Page 4 of 6 Comments Measured Inclination Azimuth Sub-Sea TVD ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Dept Section Departure ft de de ft ft ft ft ft ft ft de 1700 ft ftUS ftUS 717`.lO.O.f `J7.C~J L04.L/ O~JJU.L7 `,i000./.f 4C`JS.UL~ 5U40 .OL 4'JUtf.47 104~.LJ -4040.3/ 4.70 ~:107UL4.OJ 0400/O.L~ 11219.36 92.30 266.68 8929.38 8999.90 4912.36 5071 .14 4928.55 1843.45 -4570.81 10.84 5961022.60 648855.85 11251.30 89.66 269.09 8928.84 8999.36 4940.36 5103 .07 4957.72 1842.27 -4602.72 11.19 5961020.77 648823.97 11283.48 90.09 268.11 8928.91 8999.43 4968.77 5135 .25 4987.31 1841.49 -4634.89 3.33 5961019.33 648791.83 11315.15 93.24 269.11 8927.99 8998.51 4996.72 5166 .90 5016.45 1840.72 -4666.53 10.43 5961017.91 648760.21 11346.56 93.37 269.66 8926.18 8996.70 5024.60 5198 .26 5045.51 1840.38 -4697.89 1.80 5961016.94 648728.87 11379.25 90.52 271.30 8925.07 8995.59 5053.93 5230 .93 5076.04 1840.66 -4730.55 10.06 5961016.54 648696.21 11411.07 89.08 272.01 8925.18 8995.70 5082.78 5262 .75 5106.02 1841.58 -4762.36 5.05 5961016.81 648664.39 11442.15 88.77 272.04 8925.76 8996.28 5111.04 5293 .82 5135.39 1842.67 -4793.41 1.00 5961017.28 648633.33 11474.74 90.55 271.00 8925.95 8996.47 5140.55 5326 .41 5166.12 1843.54 -4825.99 6.33 5961017.47 648600.74 11506.07 91.76 272.28 8925.32 8995.84 5168.95 5357 .73 5195.70 1844.43 -4857.30 5.62 5961017.73 648569.42 11538.03 90.35 271.03 8924.73 8995.25 5197.92 5389 .69 5225.90 1845.36 -4889.24 5.90 5961018.00 648537.47 11570.30 91.00 271.29 8924.35 8994.87 5227.05 5421 .96 5256.32 1846.01 -4921.50 2.17 5961018.00 648505.21 11601.58 91.07 269.82 8923.79 8994.31 5255.15 5453 .23 5285.72 1846.31 -4952.77 4.70 5961017.66 648473.94 11633.00 89.30 270.09 8923.69 8994.21 5283.23 5484 .65 5315.16 1846.29 -4984.19 5.70 5961016.99 648442.53 11665.03 89.87 269.40 8923.92 8994.44 5311.80 5516 .68 5345.16 1846.15 -5016.22 2.79 5961016.20 648410.51 11697.76 90.62 268.22 8923.78 8994.30 5340.75 5549 .41 5375.64 1845.47 -5048.94 4.27 5961014.85 648377.81 11729.06 92.13 269.49 8923.03 8993.55 5368.44 5580 .70 5404.82 1844.84 -5080.22 6.30 5961013.59 648346.55 11761.92 91.72 270.12 8921.92 8992.44 5397.75 5613 .54 5435.67 1844.73 -5113.07 2.29 5961012.80 648313.72 11793.46 91.03 270.35 8921.17 8991.69 5426.00 5645. 07 5465.38 1844.86 -5144.60 2.31 5961012.29 648282.20 11825.06 90.52 271.33 8920.74 8991.26 5454.45 5676. 67 5495.28 1845.32 -5176.19 3.50 5961012.11 648250.60 11857.32 89.32 267.67 8920.79 8991.31 5483.17 5708. 93 5525.58 1845.04 -5208.44 11.94 5961011.17 648218.37 11887.87 88.61 264.01 8921.34 8991.86 5509.41 5739. 47 5553.57 1842.82 -5238.90 12.20 5961008.33 648187.96 11952.07 89.50 259.50 8922.40 8992.92 5562.07 5803. 66 5610.50 1833.62 -5302.41 7.16 5960997.83 648124.66 11983.32 90.00 256.28 8922.53 8993.05 5586.44 5834. 91 5637.26 1827.07 -5332.96 10.43 5960990.66 648094.25 12014.81 93.07 253.06 8921.69 8992.21 5609.85 5866. 39 5663.30 1818.75 -5363.31 14.12 5960981.72 648064.08 12047.77 92.68 252.55 8920.04 8990.56 5633.61 5899. 30 5689.99 1809.02 -5394.76 1.95 5960971.35 648032.84 12078.40 93.20 252.52 8918.47 8988.99 5655.59 5929. 89 5714.76 1799.83 -5423.94 1.70 5960961.58 648003.85 12110.60 90.65 252.82 8917.38 8987.90 5678.76 5962. 07 5740.93 1790.25 -5454.66 7.97 5960951.37 647973.34 12143.32 89.59 254.33 8917.32 8987.84 5702.67 5994. 79 5767.89 1781.00 -5486.04 5.64 5960941.48 647942.15 12177.31 88.43 251.39 8917.90 8988.42 5727.22 6028. 78 5795.72 1770.98 -5518.51 9.30 5960930.80 647909.90 12207.77 89.18 251.78 8918.54 8989.06 5748.75 6059. 23 5820.32 1761.36 -5547.41 2.78 5960920.60 647881.21 12241.08 89.83 252.48 8918.83 8989.35 5772.51 6092. 54 5847.47 1751.14 -5579.11 2.87 5960909.73 647849.72 12271.89 90.17 250.35 8918.83 8989.35 5794.22 6123. 35 5872.42 1741.32 -5608.31 7.00 5960899.32 647820.73 12307.33 90.58 250.31 8918.59 8989.11 5818.71 6158. 79 5900.79 1729.39 -5641.68 1.16 5960886.71 647787.61 12340.22 90.79 249.76 8918.20 8988.72 5841.32 6191. 68 5927.09 1718.17 -5672.59 1.79 5960874.85 647756.94 12366.82 90.48 250.79 8917.91 8988.43 5859.69 6218. 27 5948.47 1709.19 -5697.63 4.04 5960865.37 647732.09 12398.76 90.55 250.75 8917.62 8988.14 5881.94 6250. 21 5974.36 1698.67 -5727.79 0.25 5960854.24 647702.16 12431.03 90.41 250.85 8917.35 8987.87 5904.43 6282. 48 6000.59 1688.06 -5758.26 0.53 5960843.00 647671.91 Last Survey 12446.13 90.17 250.81 8917.27 8987.79 5914.96 6297. 58 6012.89 1683.10 -5772.52 1.61 5960837.76 647657.75 4-1/2" Lnr Q 12500 TD (Projected) 12500.00 90.00 250.81 8917.19 8987.71 5952.52 6351. 45 6056.86 1665.39 -5823.40 0.32 5960819.02 647607.25 N /U 70 [.~Ol W 74tt 4/ SO.~JL7 N 70 18 2.563 W 148 47 39.575 N 70 18 2.551 W 148 47 40.506 N 70 18 2.543 W 148 47 41.444 N 70 18 2.536 W 148 47 42.366 N 70 18 2.532 W 148 47 43.280 N 70 18 2.535 W 148 47 44.233 N 70 18 2.543 W 148 47 45.160 N 70 18 2.554 W 148 47 46.065 N 70 18 2.562 W 148 47 47.015 N 70 18 2.571 W 148 47 47. N 70 18 2.580 W 148 47 48 N 70 18 2.586 W 148 47 49. N 70 18 2.589 W 148 47 50.711 N 70 18 2.588 W 148 47 51.627 N 70 18 2.587 W 148 47 52.561 N 70 18 2.580 W 148 47 53.515 N 70 18 2.574 W 148 47 54.427 N 70 18 2.572 W 148 47 55.384 N 70 18 2.573 W 148 47 56.304 N 70 18 2.578 W 148 47 57.225 N 70 18 2.575 W 148 47 58.165 N 70 18 2.553 W 148 47 59.053 N 70 18 2.462 W 148 48 0.904 N 70 18 2.397 W 148 48 1.795 N 70 18 2.315 W 148 48 2.680 N 70 18 2.219 W 148 48 3.596 N 70 18 2.129 W 148 48 4.447 N 70 18 2.034 W 148 48 5.3 N 70 18 1.943 W 148 48 6~ N 70 18 1.844 W 148 48 7.203 N 70 18 1.749 W 148 48 8.045 N 70 18 1.649 W 14$ 48 8.969 N 70 18 1.552 W 148 48 9.820 N 70 18 1.434 W 148 48 10.793 N 70 18 1.324 W 148 48 11.694 N 70 18 1.235 W 148 48 12.424 N 70 18 1.131 W 148 48 13.303 N 70 18 1.027 W 148 48 14.191 N 70 18 0.978 W 148 48 14.607 N 70 18 0.803 W 148 48 16.089 SurveyEditor Ver SP 2.1 Bld( doc40x_100) D-26\D-26\D-26B\D-266 Generated 3/19/2008 3:32 PM Page 5 of 6 Measured Vertical Along Hole Comments Inclination Azimuth Sub•Sea ND n/p Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS RUS Survey Type: Definitive Survey NOTES: GYD CT CMS - (Gyrodata -cont. casing m/s - Gyrodata multishot surveys with continuous toll (RGS-CT) in casing. OD 13-3/8" or less. INC+TREND - (Inclinometer + known azi trend -Inclination only surveys in near-vertical hole-where formation dip and experience enables direction of drift to be predicted. Replaces ex-BP "Inclinometer (azimuth in known quadrant)" model. MWD + IFR + MS - (In-field referenced MWD with mull-station analysis and correction applied in post-processing. Assumes a BHA sa® correction is applied to enhance inclination accuracy. ) Legal DescrioUon: Northing (Yl fftUSl Easting (XI fftUSl Surface : 3564 FSL 1692 FEL S23 T11N R13E UM 5959272.99 653463.00 BHL : 5227 FSL 2234 FEL S22 T11 N R13E UM 5960819.02 647607.25 • ~J SurveyEditor Ver SP 2.1 Bid( doc40x_100) D-26\D-26\D-266\D-26B Generated 3/19/2008 3:32 PM Page 6 of 6 ~- TREE = 4" CMl WELLHEAD = FMC ACTUATOR = _ ____. AXELSON KB. ELEV = 6F. ELEV = 70.5' 42.42' KOP_=_ Max Angle = 3400' 93° ~ i 1347' Datum MD = 10457' Datum TVD = 8800' SS DRLG DRAFT 4-1/2", 12.6#, 13Cr, Vam-Top Tubing - 9773' MD D-26B TOW - 8282" MD- Top of 7" Liner - 8058' MD X-Nipples (3.813" ID) - 9731 ` & 9666` MD BOT S-3 Packer - 9697` MD XN-Nipple w.3.725" NoGo - 9761 ` BOT 4-1 /2" Liner Top 11 `TBS - 9766` MD 7", 26#, L-80, BTC-M, Liner - 9907 MD- 4-1/2" WLEG - 9772" MD Perf's (4-1/2" Liner) at - 11300`-11950' MD and 12100`-12400` MDl . ~;, TOP OF 2-718' LNR 10157' 4-1/2", 11.6#, L-80, IBT-M Liner 12,500' MD Min. ID = XN Nipple 3.725" 9758` MD ~ 4-112" TBG, 12.6#, L-80, .0152 bpf, ~ = 3.958" ~~ 10749' PERFORATION SUMMARY REF LOG: SPERRY SUN GRlROP 06!03/97 A NGLE AT TOP PERF: X32" ~ 11300` Note: Refer to Product~n DB for historical pert data SQE SPF INTERVAL OpnlSgz DATE 2-718" 6 11 ~rQ - '': ~) +J 02t23l08 2-718" 6 t 2100 - 12440 i3 02123108 WHIPSTOCK ~~ 10765 /4-1 /2" X-Nipple (3.813" ID) - 2187' MD /13-3/8" Shoe - 2707' MD // GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 3 3137 3136 7 MMG DOME RK 16 03/06/08 2 5646 5278 50 MMG SO RK 20 03/06/08 1 7401 6452 46 MMG DMY RK 0 02/18/06 ~ BOT 7" Liner Top (10' TBS) - 8058' MD CBOT 9-5/8" Whipstock (TOW - 8282' MD) /~ 5/8" HES EZSV - 8315' MD ~TOC - -9530' MD (-250' Cement) ~9-5/8" HES EZSV - 9828` MD ~ TOP OF 7" LNR 98ST ~ ~ 9-5/8" CSG, 47#, L-80, ID = 8.681" ~--~ 10135' 10065' TOP OF 4-112" DRESSED STUMP (D16 RKB' 10128' ~KR BP FISH (06101105). SOME JUNK f11 REMA ~iING ON TOP OF 1T {D16 RKB) 10157' DEPLOYMENTSLEEVE 14676' 4112" OTIS XA SLIDING SLV, K3 = 3..813" ~ 10701 -10738' ~-t BLA ST JOINTS 10739' BKR K-22 ANCHOR 10741' ~--~7" X 4-112" BKR PKR, ID = 4.00" 4-112" OTIS XN NIP, ID = 3.725" 10749' --4-112" BKR TBG TAIL, iD = 4.00" 10763' ELMD TT LOGGED 02109/86 MILLOUT WINDOW 10808' - t 0816' - Abandon PerFs - 11,150` -12,390' MD PBTD 11026' ~~ PB1D 12415' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 2-718" LNR, 6.16#, L-80, .0058 bpf, ID = 2.37" DATE REV BY COMMENTS DATE REV BY COMMENTS 02173/88 ORIGINAL COMPLETION 04/0718$ DFF RWO 06/17/97 WHITLO 5IDETRACK 06101105 JDMJTLH RWO StISPENDED 02125/0$ N7ES SIDETRACK 03/09/08 KSB/PJC GLV C/O (03108!080 PRUDHOE BAY UNIT WELL: D-26B PERMfT No: 2060980 API No: 50-029-21530-02 SEC 23, T11 N, R13E BP Exploration (Alaska) v 6' 1 G od SCHLUMBERGER Survey report Client ...................: BP Field ..................... Prudhoe Bay Well .....................: D-26B API number ...............: 50-029-21530-02 Engineer .................: E. Galotta 7-ES .....................: NSB STATE :...................: AK ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS...........: Mason & Taylor ----- Depth reference ----------------------- Permanent datum..........: MEAN SEA LEVEL Depth reference..........: Driller's Pipe Tally GL above permanent.......: 42.42 ft KB above permanent.......: N/A DF above permanent.......: 70.52 ft ----- Vertical section origin---------------- Latitude (+N/S-).........: 0.00 ft Departure (+N/S-)........: 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).........: -999.25 ft Departure (+N/S-)........: -999.25 ft Azimuth from Vsect Origin to target: 296.61 degrees [(c)2008 IDEAL ID12_OC_13] 22-Feb-2008 18:36:47 Page 1 of 8 Spud date ................: 9-Feb-08 Last survey date.........: 22-Feb-08 Total accepted surveys...: 185 MD of first survey.......: 0.00 ft MD of last survey........: 12500.00 ft Geomagnetic data ---------------------- Magnetic model...........: BGGM version 2007 Magnetic date ............: 09-Feb-2008 Magnetic field strength..: 57662.90 GAMA Magnetic dec (+E/W-).....: 23.35 degrees Magnetic dip .............: 80.91 degrees ----- MWD survey Reference Reference G ............... Reference H ............... Reference Dip ............: Tolerance of G............ Tolerance of H............ Tolerance of Dip.........: Criteria --------- 1002.68 meal 57663.00 GAMA 80.91 degrees (+/-) 2.50 meal (+/-)300.00 GAMA (+/-) 0.45 degrees ----- Corrections ------------ Magnetic dec (+N/S-)...... 23.35 degrees Grid convergence (+N/S-).: 0.00 degrees Total az corr (+N/S~)....: 23.35 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type .... I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction SCHLUMBERGER Survey Report 22-Feb-2008 18:36:47 Page 2 of 8 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 BP _UNKNOWN 2 30.02 0.00 0.00 30.02 30.02 0.00 0.00 0.00 0.00 0.00 0.00 BP _UNKNOWN 3 97.82 1.42 136.70 67.80 97.81 -0.79 -0.61 0.58 0.84 136.70 2.09 BP _BOSS GYRO 4 197.82 1.07 129.70 100.00 197.79 -2.86 -2.11 2.14 3.01 134.53 0.38 BP _BOSS GYRO 5 297.82 1.00 137.50 100.00 297.77 -4.59 -3.35 3.45 4.81 134.13 0.16 BP _BOSS GYRO 6 397.82 1.07 143.00 100.00 397.76 -6.24 -4.74 4.60 6.61 135.83 0.12 BP _BOSS GYRO 7 497.82 1.12 137.20 100.00 497.74 -7.99 -6.20 5.83 8.51 136.77 0.12 BP _BOSS GYRO • 8 597.82 0.92 118.00 100.00 597.72 -9.71 -7.30 7.20 10.25 135.37 0.39 BP _BOSS GYRO 9 697.82 0.68 127.81 100.00 697.71 -11.09 -8.04 8.38 11.61 133.80 0.28 BP _BOSS GYRO 10 797.82 0.87 118.11 100.00 797.70 -12.43 -8.76 9.52 12.93 132.61 0.23 BP _BOSS GYRO 11 897.82 0.62 96.70 100.00 897.70 -13.70 -9.18 10.73 14.12 130.55 0.37 BP _BOSS GYRO 12 997.82 0.80 106.61 100.00 997.69 -14.90 -9.44 11.93 15.22 128.35 0.22 BP _BOSS GYRO 13 1097.82 0.43 118.61 100.00 1097.68 -15.96 -9.82 12.93 16.24 127.22 0.39 BP _BOSS GYRO 14 1197.82 0.52 101.61 100.00 1197.68 -16.77 -10.09 13.70 17.02 126.37 0.17 BP _BOSS GYRO 15 1297.82 0.67 122.61 100.00 1297.67 -17.79 -10.50 14.64 18.02 125.64 0.26 BP _BOSS GYRO 16 1397.82 0.75 149.81 100.00 1397.67 -18.92 -11.38 15.46 19.20 126.35 0.34 BP _BOSS GYRO 17 1497.82 0.55 152.11 100.00 1497.66 -19.86 -12.37 16.02 20.24 127.68 0.20 BP _BOSS GYRO 18 1597.82 0.50 144.40 100.00 1597.65 -20.64 -13.15 16.50 21.09 128.56 0.09 BP _BOSS GYRO 19 1697.82 0.60 123.90 100.00 1697.65 -21.54 -13.79 17.18 22.04 128.76 0.22 BP _BOSS GYRO 20 1797.82 0.68 123.70 100.00 1797.64 -22.65 -14.42 18.11 23.15 128.52 0.08 BP _BOSS GYRO 21 1897.82 0.80 144.61 100.00 1897.64 -23.86 -15.31 19.01 24.41 128.85 0.29 BP _BOSS GYRO 22 1997.82 0.85 146.40 100.00 1997.63 -25.12 -16.50 19.82 25.79 129.77 0.06 BP _BOSS GYRO 23 2097.82 0.80 143.70 100.00 2097.62 -26.38 -17.68 20.65 27.18 130.57 0.06 BP _BOSS GYRO 24 2197.82 0.60 148.61 100.00 2197.61 -27.45 -18.69 21.33 28.36 131.22 0.21 BP _BOSS GYRO 25 2297.82 0.43 143.40 100.00 2297.60 -28.23 -19.44 21.83 29.23 131.68 0.18 BP _BOSS GYRO 26 2397.82 0.67 145.90 100.00 2397.60 -29.07 -20.22 22.38 30.17 132.10 0.24 BP _BOSS GYRO 27 2497.82 0.95 128.31 100.00 2497.59 -30.39 -21.22 23.36 31.56 132.25 0.37 BP _BOSS GYRO 28 2597.82 0.97 135.31 100.00 2597.57 -32.01 -22.34 24.61 33.23 132.23 0.12 BP _BOSS GYRO 29 2697.82 0.75 137.81 100.00 2697.56 -33.42 -23.42 25.64 34.73 132.41 0.22 BP _BOSS GYRO 30 2797.82 0.47 218.60 100.00 2797.56 -33.94 -24.23 25.82 35.41 133.18 0.82 BP _BOSS GYRO [(c)2008 IDEAL ID12_OC_13] SCHLUMBERGER Survey Report 22-Feb-2008 18:36:47 Page 3 of 8 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 31 2897.82 3.08 267.30 100.00 2897.50 -31.51 -24.68 22.88 33.66 137.16 2.79 BP _BOSS GYRO 32 2997.82 4.80 266.39 100.00 2997.26 -25.56 -25.07 16.03 29.75 147.41 1.72 BP _BOSS GYRO 33 3097.82 6.35 270.70 100.00 3096.79 -16.97 -25.26 6.32 26.04 165.96 1.60 BP _BOSS GYRO 34 3197.82 7.05 272.20 100.00 3196.11 -6.40 -24.96 -5.34 25.53 192.08 0.72 BP _BOSS GYRO 35 3297.82 7.90 273.61 100.00 3295.26 5.51 -24.29 -18.33 30.43 217.04 0.87 BP _BOSS GYRO 36 3397.82 9.68 275.31 100.00 3394.08 19.67 -23.08 -33.56 40.73 235.49 1.80 BP _BOSS GYRO 37 3497.82 11.10 278.20 100.00 3492.44 36.64 -20.93 -51.46 55.56 247.87 1.51 BP _BOSS GYRO 38 3597.82 12.60 278.70 100.00 3590.30 56.15 -17.91 -71.78 73.98 255.99 1.50 BP _BOSS GYRO 39 3697.82 14.20 279.61 100.00 3687.58 78.26 -14.21 -94.65 95.71 261.46 1.61 BP _BOSS GYRO 40 3797.82 15.42 279.31 100.00 3784.25 102.68 -10.01 -119.87 120.28 265.23 1.22 BP _BOSS GYRO 41 3897.82 17.67 280.50 100.00 3880.11 129.96 -5.09 -147.91 148.00 268.03 2.28 BP _BOSS GYRO 42 3997.82 18.97 281.31 100.00 3975.04 160.22 0.86 -178.77 178.78 270.28 1.32 BP _BOSS GYRO 43 4097.82 21.13 281.81 100.00 4068.97 193.33 7.74 -212.36 212.50 272.09 2.17 BP _BOSS GYRO 44 4197.82 22.70 282.31 100.00 4161.74 229.46 15.54 -248.85 249.34 273.57 1.58 BP _BOSS GYRO 45 4297.82 24.97 282.61 100.00 4253.21 268.64 24.26 -288.31 289.33 274.81 2.27 BP _BOSS GYRO 46 4397.82 26.85 282.81 100.00 4343.15 311.05 33.88 -330.93 332.66 275.85 1.88 BP _BOSS GYRO 47 4497.82 29.40 283.61 100.00 4431.33 356.91 44.66 -376.82 379.45 276.76 2.58 BP _BOSS GYRO 48 4597.82 32.18 284.50 100.00 4517.23 406.87 57.11 -426.46 430.27 277.63 2.82 BP _BOSS GYRO 49 4697.82 34.52 285.20 100.00 4600.76 460.69 71.21 -479.60 484.85 278.45 2.37 BP _BOSS GYRO 50 4797.82 38.13 286.11 100.00 4681.31 518.84 87.21 -536.62 543.66 279.23 3.65 BP _BOSS GYRO 51 4897.82 40.88 286.61 100.00 4758.46 581.43 105.13 -597.65 606.82 279.98 2.77 BP _BOSS GYRO 52 4997.82 42.62 287.00 100.00 4833.07 647.05 124.39 -661.39 672.98 280.65 1.76 BP _BOSS GYRO 53 5097.82 43.65 287.00 100.00 4906.04 .714.46 144.38 -726.77 740.97 281.24 1.03 BP _BOSS GYRO 54 5197.82 44.83 287.11 100.00 4977.68 783.26 164.84 -793.47 810.41 281.74 1.18 BP _BOSS GYRO 55 5297.82 46.73 287.50 100.00 5047.42 853.98 186.16 -861.89 881.76 282.19 1.92 BP _BOSS GYRO 56 5397.82 47.92 287.70 100.00 5115.20 926.59 208.39 -931.97 954.98 282.60 1.20 BP _BOSS GYRO 57 5497.82 48.82 288.50 100.00 5181.63 1000.51 231.62 - 1003.01 1029.40 283.00 1.08 BP _BOSS GYRO 58 5597.82 49.52 288.61 100.00 5247.02 1075.43 255.69 - 1074.74 1104.74 283.38 0.70 BP _BOSS GYRO 59 5697.82 50.23 288.90 100.00 5311.46 1151.18 280.28 - 1147.14 1180.89 283.73 0.74 BP _BOSS GYRO 60 5797.82 50.93 289.20 100.00 5374.96 1227.75 305.49 - 1220.16 1257.83 284.06 0.74 BP _BOSS GYRO C J [(c)2008 IDEAL ID12_OC_13] SCHLUMBERGER Survey Report 22-Feb-2008 18:36:47 Page 4 of 8 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 61 5897.82 51.28 289.20 100.00 5437.75 1304.93 331.09 -1293.66 1335.36 284.36 0.35 BP _BOSS GYRO 62 5997.82 50.42 290.70 100.00 5500.89 1381.96 357.54 -1366.56 1412.56 284.66 1.45 BP _BOSS GYRO 63 6047.82 47.27 294.70 50.00 5533.79 1419.49 372.03 -1401.28 1449.83 284.87 8.71 BP _BOSS GYRO 64 6097.82 46.52 296.40 50.00 5567.96 1455.99 387.77 -1434.22 1485.71 285.13 2.90 BP _BOSS GYRO 65 6197.82 46.58 296.61 100.00 5636.73 1528.59 420.17 -1499.18 1556.95 285.66 0.16 BP _BOSS GYRO 66 6297.82 47.17 296.61 100.00 5705.09 1601.57 452.86 -1564.44 1628.67 286.14 0.59 BP _BOSS GYRO 67 6397.82 47.33 296.81 100.00 5772.97 1675.00 485.87 -1630.03 1700.91 286.60 0.22 BP _BOSS GYRO 68 6497.82 47.80 296.81 100.00 5840.45 1748.81 519.16 -1695.91 1773.59 287.02 0.47 BP _BOSS GYRO 69 6597.82 48.17 297.00 100.00 5907.38 1823.10 552.78 -1762.16 1846.83 287.42 0.40 BP _BOSS GYRO 70 6697.82 48.10 297.20 100.00 5974.12 1897.57 586.70 -1828.46 1920.28 287.79 0.16 BP _BOSS GYRO 71 6797.82 47.95 297.20 100.00 6041.00 1971.91 620.69 -1894.58 1993.66 288.14 0.15 BP _BOSS GYRO 72 6897.82 47.63 298.00 100.00 6108.18 2045.97 655.00 -1960.22 2066.76 288.48 0.67 BP _BOSS GYRO 73 6997.82 47.13 297.81 100.00 6175.90 2119.54 689.44 -2025.25 2139.38 288.80 0.52 BP _BOSS GYRO 74 7097.82 47.18 297.90 100.00 6243.90 2192.84 723.70 -2090.07 2211.82 289.10 0.08 BP _BOSS GYRO 75 7197.82 47.12 298.11 100.00 6311.91 2266.13 758.12 -2154.80 2284.28 289.38 0.17 BP _BOSS GYRO 76 7297.82 46.72 298.11 100.00 6380.21 2339.14 792.54 -2219.22 2356.50 289.65 0.40 BP _BOSS GYRO 77 7397.82 46.07 298.31 100.00 6449.18 2411.53 826.76 -2283.03 2428.12 289.91 0.67 BP _BOSS GYRO 78 7497.82 45.85 298.20 100.00 6518.69 2483.38 860.79 -2346.35 2499.27 290.15 0.23 BP _BOSS GYRO 79 7597.82 44.93 298.81 100.00 6588.92 2554.53 894.77 -2408.92 2569.72 290.38 1.02 BP _BOSS GYRO 80 7697.82 44.18 299.20 100.00 6660.18 2624.63 928.78 -2470.28 2639.11 290.61 0.80 BP _BOSS GYRO 81 7797.82 43.73 298.81 100.00 6732.17 2693.98 962.44 -2530.98 2707.79 290.82 0.53 BP _BOSS GYRO 82 7897.82 43.10 298.61 100.00 6804.81 2762.66 995.46 -2591.26 2775.89 291.01 0.64 BP _BOSS GYRO 83 7997.82 42.52 298.81 100.00 6878.17 2830.57 1028.10 -2650.86 2843.24 291.20 0.60 BP _BOSS GYRO 84 8097.82 42.02 298.81 100.00 6952.16 2897.78 1060.51 -2709.80 2909.93 291.37 0.50 BP _BOSS GYRO 85 8197.82 41.68 298.81 100.00 7026.65 2964.45 1092.67 -2768.26 2976.10 291.54 0.34 BP _BOSS GYRO 86 8282.00 41.00 299.00 84.18 7089.86 3020.01 1119.54 -2816.93 3031.25 291.67 0.82 BP _BLIND 87 8299.00 41.00 302.00 17.00 7102.69 3031.14 1125.20 -2826.54 3042.27 291.71 11.58 BP _BLIND 88 8329.00 40.00 302.00 30.00 7125.50 3050.53 1135.52 -2843.06 3061.44 291.77 3.33 BP _BLIND 89 8391.77 35.95 302.30 62.77 7174.97 3088.97 1156.07 -2875.76 3099.43 291.90 6.46 BP _INC+ TREND 90 8487.57 32.00 302.78 95.80 7254.40 3142.21 1184.85 -2920.89 3152.05 292.08 4.13 BP _INC+ TREND • [(c)2008 IDEAL ID12_OC_13] SCHLUMBERGER Survey Report 22 -Feb-2008 18:36:47 Page 5 of 8 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 91 8583.64 31.13 302.03 96.07 7336.25 3192.24 1211.80 - 2963.34 3201.54 292.24 0.99 BP _MWD+IFR+MS 92 8678.29 30.11 299.35 94.65 7417.71 3240.31 1236.42 - 3004.78 3249.22 292.37 1.80 BP _MWD+IFR+MS 93 8773.95 29.57 298.61 95.66 7500.69 3287.87 1259.48 - 3046.42 3296.51 292.46 0.68 BP _MWD+IFR+MS 94 8869.88 30.19 297.89 95.93 7583.87 3335.64 1282.10 - 3088.52 3344.05 292.54 0.75 BP _MWD+IFR+MS 95 8965.41 30.51 298.31 95.53 7666.30 3383.89 1304.83 - 3131.09 3392.10 292.62 0.40 BP _MWD+IFR+MS 96 9060.52 29.56 298.11 95.11 7748.64 3431.48 1327.34 - 3173.04 3439.48 292.70 1.00 BP _MWD+IFR+MS 97 9156.37 31.04 297.64 95.85 7831.40 3479.82 1349.94 - 3215.79 3487.65 292.77 1.56 BP _MWD+IFR+MS 98 9251.99 29.96 297.80 95.62 7913.78 3528.35 1372.52 - 3258.75 3536.00 292.84 1.13 BP _MWD+IFR+MS 99 9346.10 28.81 297.97 94.11 7995.78 3574.51 1394.11 - 3299.57 3582.00 292.90 1.23 BP _MWD+IFR+MS 100 9442.21 28.16 302.83 96.11 8080.27 3620.21 1417.27 - 3339.09 3627.42 293.00 2.50 BP _MWD+IFR+MS 101 9537.67 28.44 303.38 95.46 8164.32 3665.18 1441.99 - 3376.99 3671.98 293.12 0.40 BP _MWD+IFR+MS 102 9634.36 28.98 303.74 96.69 8249.12 3711.29 1467.67 - 3415.70 3717.67 293.25 0.59 BP _MWD+IFR+MS 103 9730.22 30.45 300.51 95.86 8332.38 3758.57 1492.90 - 3455.94 3764.61 293.36 2.27 BP _MWD+IFR+MS 104 9824.95 30.56 299.69 94.73 8414.00 3806.56 1517.02 - 3497.54 3812.37 293.45 0.45 BP _MWD+IFR+MS 105 9845.36 30.11 299.64 20.41 8431.62 3816.86 1522.12 - 3506.50 3822.61 293.46 2.21 BP _MWD+IFR+MS 106 9951.61 33.24 300.57 106.25 8522.03 3872.54 1550.12 - 3554.75 3878.03 293.56 2.98 BP _INC+TREND 107 9983.07 34.10 300.43 31.46 8548.21 3889.94 1558.97 - 3569.78 3895.34 293.59 2.74 BP _MWD+IFR+MS 108 10016.10 33.30 302.47 33.03 8575.69 3908.20 1568.53 -3585.41 3913.49 293.63 4.20 BP _MWD+IFR+MS 109 10047.85 34.87 302.63 31.75 8601.98 3925.89 1578.10 -3600.41 3931.07 293.67 4.95 BP _MWD+IFR+MS 110 10079.67 38.49 303.35 31.82 8627.50 3944.78 1588.45 -3616.35 3949.83 293.71 11.46 BP _MWD+IFR+MS 111 10112.69 39.24 305.44 33.02 8653.21 3965.30 1600.16 -3633.44 3970.19 293.77 4.57 BP _MWD+IFR+MS 112 10143.34 40.88 304.27 30.65 8676.67 3984.83 1611.43 -3649.63 3989.54 293.82 5.89 BP _MWD+IFR+MS 113 10174.89 44.25 303.51 31.55 8699.90 4005.99 1623.32 -3667.34 4010.56 293.88 10.80 BP _MWD+IFR+MS 114 10207.17 45.31 304.60 32.28 8722.82 4028.54 1636.05 -3686.18 4032.94 293.93 4.05 BP _MWD+IFR+MS 115 10240.19 46.99 303.62 33.02 8745.69 4052.15 1649.40 -3705.89 4056.38 293.99 5.52 BP _MWD+IFR+MS 116 10271.04 50.36 302.68 30.85 8766.06 4075.16 1662.07 -3725.29 4079.25 294.04 11.16 BP _MWD+IFR+MS 117 10303.76 51.45 303.04 32.72 8786.69 4100.40 1675.85 -3746.62 4104.34 294.10 3.44 BP _MWD+IFR+MS 118 10335.48 52.88 302.64 31.72 8806.15 4125.30 1689.43 -3767.67 4129.10 294.15 4.62 BP _MWD+IFR+MS 119 10366.75 57.42 302.03 31.27 8824.01 4150.83 1703.15 -3789.35 4154.50 294.20 14.61 BP _MWD+IFR+MS 120 10399.97 58.67 303.54 33.22 8841.60 4178.85 1718.41 -3813.04 4182.37 294.26 5.39 BP _MWD+IFR+MS i • [(c)2008 IDEAL ID12_OC_13] SCHLUMBERGER Survey Report 22-Feb-2008 18:36:47 Page 6 of 8 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 121 10431.89 59.15 301.17 31.92 8858.08 4206.05 1733.04 - 3836.13 4209.43 294.31 6.53 BP _MWD+IFR+MS 122 10461.99 61.77 298.98 30.10 8872.92 4232.18 1746.15 - 3858.79 4235.48 294.35 10.76 BP _MWD+IFR+MS 123 10495.10 62.34 298.56 33.11 8888.44 4261.41 1760.23 - 3884.43 4264.65 294.38 2.05 BP _MWD+IFR+MS 124 10526.54 63.71 295.55 31.44 8902.70 4289.42 1772.97 - 3909.38 4292.63 294.40 9.58 BP _MWD+IFR+MS 125 10558.23 65.17 292.72 31.69 8916.38 4317.98 1784.65 - 3935.47 4321.21 294.39 9.28 BP _MWD+IFR+MS 126 10590.85 65.75 292.08 32.62 8929.92 4347.57 1795.96 - 3962.90 4350.87 294.38 2.52 BP _MWD+IFR+MS 127 10621.90 66.66 287.51 31.05 8942.46 4375.77 1805.57 - 3989.63 4379.18 294.35 13.78 BP _MWD+IFR+MS 128 10653.74 68.27 284.01 31.84 8954.66 4404.65 1813.56 - 4017.92 4408.25 294.29 11.34 BP _MWD+IFR+MS 129 10687.12 68.86 283.40 33.38 8966.86 4434.93 1820.92 - 4048.11 4438.80 294.22 2.45 BP _MWD+IFR+MS 130 10717.42 70.67 281.38 30.30 8977.34 4462.49 1827.01 -4075.88 4466.63 294.14 8.65 BP _MWD+IFR+MS 131 10749.00 73.97 281.16 31.58 8986.93 4491.50 1832.89 - 4105.38 4495.96 294.06 10.47 BP _MWD+IFR+MS 132 10781.90 77.64 280.82 32.90 8995.00 4522.21 1838.97 - 4136.69 4527.03 293.97 11.20 BP _MWD+IFR+MS 133 10812.93 81.53 280.28 31.03 9000.60 4551.54 1844.56 - 4166.68 4556.71 293.88 12.65 BP _MWD+IFR+MS 134 10844.78 85.38 279.29 31.85 9004.23 4581.82 1849.93 - 4197.86 4587.40 293.78 12.48 BP _MWD+IFR+MS 135 10877.75 88.06 277.82 32.97 9006.12 4613.11 1854.83 - 4230.40 4619.17 293.68 9.27 BP _MWD+IFR+MS 136 10901.16 87.85 275.93 23.41 9006.96 4635.13 1857.63 - 4253.63 4641.57 293.59 8.12 BP _MWD+IFR+MS 137 10932.86 88.73 272.74 31.70 9007.90 4664.45 1860.02 - 4285.22 4671.49 293.46 10.43 BP _MWD+IFR+MS 138 10964.75 89.45 269.54 31.89 9008.41 4693.23 1860.66 - 4317.10 4701.00 293.32 10.28 BP _MWD+IFR+MS 139 10997.55 89.93 268.35 32.80 9008.59 4722.28 1860.05 - 4349.89 4730.89 293.15 3.91 BP _MWD+IFR+MS 140 11028.78 91.44 268.15 31.23 9008.21 4749.76 1859.10 - 4381.10 4759.23 292.99 4.88 BP _MWD+IFR+MS 141 11060.02 92.99 266.48 31.24 9007.01 4776.98 1857.64 - 4412.28 4787.38 292.83 7.29 BP _MWD+IFR+MS 142 11092.77 93.33 264.12 32.75 9005.20 4804.92 1854.96 - 4444.87 4816.40 292.65 7.27 BP _MWD+IFR+MS 143 11123.74 92.44 263.65 30.97 9003.64 4830.94 1851.66 - 4475.63 4843.54 292.48 3.25 BP _MWD+IFR+MS 144 11155.73 92.44 265.89 31.99 9002.28 4858.09 1848.75 - 4507.45 4871.86 292.30 7.00 BP _MWD+IFR+MS 145 11196.83 91.89 264.27 41.10 9000.73 4893.09 1845.23 - 4548.37 4908.41 292.08 4.16 BP _MWD+IFR+MS 146 11219.36 92.30 266.68 22.53 8999.90 4912.36 1843.45 -4570.81 4928.55 291.96 10.84 BP _MWD+IFR+MS 147 11251.30 89.66 269.09 31.94 8999.36 4940.36 1842.27 -4602.72 4957.72 291.81 11.19 BP _MWD+IFR+MS 148 11283.48 90.09 268.11 32.18 8999.43 4968.77 1841.49 - 4634.89 4987.31 291.67 3.33 BP _MWD+IFR+MS 149 11315.15 93.24 269.11 31.67 8998.51 4996.72 1840.72 -4666.53 5016.45 291.53 10.43 BP _MWD+IFR+MS 150 11346.56 93.37 269.66 31.41 8996.70 5024.60 1840.38 -4697.89 5045.51 291.39 1.80 BP _MWD+IFR+MS s r ~ LJ [(c)2008 IDEAL ID12_OC_13] SCHLU MBERGER Survey Rep ort 22 -Feb-2008 18:36:47 Page 7 of 8 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 151 11379.25 90.52 271.30 32.69 8995.59 5053.93 1840.66 - 4730.55 5076.04 291.26 10.06 BP _MWD+IFR+MS 152 11411.07 89.08 272.01 31.82 8995.70 5082.78 1841.58 - 4762.36 5106.02 291.14 5.05 BP _MWD+IFR+MS 153 11442.15 88.77 272.04 31.08 8996.28 5111.04 1842.67 - 4793.42 5135.39 291.03 1.00 BP _MWD+IFR+MS 154 11474.74 90.55 271.00 32.59 8996.48 5140.55 1843.54 - 4825.99 5166.12 290.91 6.33 BP _MWD+IFR+MS 155 11506.07 91.76 272.28 31.33 8995.84 5168.95 1844.43 - 4857.30 5195.70 290.79 5.62 BP _MWD+IFR+MS 156 11538.03 90.35 271.03 31.96 8995.26 5197.92 1845.36 - 4889.24 5225.90 290.68 5.90 BP _MWD+IFR+MS 157 11570.30 91.00 271.29 32.27 8994.88 5227.05 1846.01 - 4921.50 5256.32 290.56 2.17 BP _MWD+IFR+MS 158 11601.58 91.07 269.82 31.28 8994.31 5255.15 1846.31 - 4952.77 5285.72 290.44 4.70 BP _MWD+IFR+MS 159 11633.00 89.30 270.09 31.42 8994.21 5283.23 1846.29 - 4984.19 5315.16 290.33 5.70 BP _MWD+IFR+MS 160 11665.03 89.87 269.40 32.03 8994.44 5311.80 1846.15 - 5016.22 5345.16 290.21 2.79 BP _MWD+IFR+MS 161 11697.76 90.62 268.22 32.73 8994.30 5340.75 1845.47 - 5048.94 5375.65 290.08 4.27 BP _MWD+IFR+MS 162 11729.06 92.13 269.49 31.30 8993.55 5368.44 1844.84 - 5080.23 5404.82 289.96 6.30 BP _MWD+IFR+M5 163 11761.92 91.72 270.12 32.86 8992.45 5397.75 1844.73 - 5113.07 5435.67 289.84 2.29 BP _MWD+IFR+MS 164 11793.46 91.03 270.35 31.54 8991.69 5426.00 1844.86 - 5144.60 5465.38 289.73 2.31 BP _MWD+IFR+MS 165 11825.06 90.52 271.33 31.60 8991.26 5454.46 1845.32 - 5176.19 5495.28 289.62 3.50 BP _MWD+IFR+MS 166 11857.32 167 11887.87 168 11952.07 169 11983.32 170 12014.81 171 12047.77 172 12078.40 173 12110.60 174 12143.32 175 12177.31 176 12207.77 177 12241.08 178 12271.89 179 12307.33 180 12340.22 89.32 267.67 32.26 8991.31 5483.17 1845.04 -5208.44 5525.58 289.51 11.94 BP_ MWD+IFR+MS 88.61 264.01 30.55 8991.86 5509.41 1842.82 -5238.90 5553.57 289.38 12.20 BP_ MWD+IFR+MS 89.50 259.50 64.20 8992.92 5562.07 1833.62 -5302.41 5610.50 289.08 7.16 BP_ MWD+IFR+MS 90.00 256.28 31.25 8993.06 5586.45 1827.07 -5332.96 5637.26 288.91 10.43 BP_ MWD+IFR+MS 93.07 253.06 31.49 8992.21 5609.86 1818.75 -5363.31 5663.30 288.73 14.13 BP_ MWD+IFR+MS 92.68 252.55 32.96 8990.56 5633.61 1809.02 -5394.76 5689.99 288.54 1.95 BP_ MWD+IFR+MS • 93.20 252.52 30.63 8988.99 5655.59 1799.83 -5423.94 5714.77 288.36 1.70 BP_ MWD+IFR+MS 90.65 252.82 32.20 8987.91 5678.76 1790.25 -5454.66 5740.93 288.17 7.97 BP_ MWD+IFR+MS 89.59 254.33 32.72 8987.84 5702.68 1781.00 -5486.04 5767.90 287.99 5.64 BP_ MWD+IFR+MS 88.43 251.39 33.99 8988.42 5727.22 1770.98 -5518.51 5795.72 287.79 9.30 BP_ MWD+IFR+MS 89.18 251.78 30.46 8989.06 5748.75 1761.36 -5547.41 5820.32 287.62 2.78 BP_ MWD+IFR+MS 89.83 252.48 33.31 8989.35 5772.51 1751.14 -5579.11 5847.47 287.43 2.87 BP_ MWD+IFR+MS 90.17 250.35 30.81 8989.35 5794.22 1741.32 -5608.31 5872.42 287.25 7.00 BP_ MWD+IFR+MS 90.58 250.31 35.44 8989.12 5818.72 1729.39 -5641.68 5900.79 287.04. 1.16 BP_ MWD+IFR+MS 90.79 249.76 32.89 8988.72 5841.32 1718.17 -5672.59 5927.09 286.85 1.79 BP_ MWD+IFR+MS [(c)2008 IDEAL ID12_OC_13] SCHLUMBERGER Survey Report 22 -Feb-2008 18:36:47 Page 8 of 8 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 181 12366.82 90.48 250.79 26.60 8988.43 5859.69 1709.19 - 5697.63 5948.47 286.70 4.04 BP_MWD+IFR+MS 182 12398.76 90.55 250.75 31.94 8988.14 5881.94 1698.67 - 5727.79 5974.36 286.52 0.25 BP_MWD+IFR+MS 183 12431.03 90.41 250.85 32.27 8987.87 5904.43 1688.06 - 5758.26 6000.59 286.34 0.53 BP_MWD+IFR+MS 184 12446.13 90.17 250.81 15.10 8987.79 5914.96 1683.10 - 5772.52 6012.89 286.26 1.61 BP_MWD+IFR+MS 185 12500.00 90.00 250.81 53.87 8987.71 5952.52 1665.39 -5823.40 6056.86 285.96 0.32 BP_BLIND [(c)2008 IDEAL ID12_OC_13] • chlumaur er Drilling & Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Dispatched To: Christine Mahnken WeII No D-26B Date Dispatched: 6-Feb-08 Installation/Rig Nabors 7ES Dispatched By: F. Medina LWD Log Delivery V2.1, 03-06-06 Data No Of Prints No of Floppies Surveys 2 1 Received By: Please sign and return to: Drilling & Measurements LWD Division l ~ o ~ 2525 Gambell Street, Suite 400 'u/ ~ --- Off, Anchorage, Alaska 99501 fclarke3@slb.com Fax: 907-561-8317 ~o~_iJ~g I ~ ~~ ~~~ '~ ~~ ~ h fit ~' ' ! ~ ;, ; ~ ALASSA OIL A1~TD GAS COI~TSERQA'TIO1~T COrII-zISSI01~ Dave Wesley Senior Petroleum Engineer, ENS BP Exploration (Alaska} Inc. PO Box 196612 Anchorage, AK 99519-6612 • FRANK H. MURKOWSKI, GOVERNOR 333 W. 7~" AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU D-26B BP Exploration (Alaska) Inc. Permit No: 206-098 Surface Location: 1716' SNL, 1692' WEL, SEC. 23, T11N, R13E, UM Bottomhole Location: 101' SNL, 2364' WEL, SEC. 22, T11N, R13E, UM Dear Mr. Wesley: Enclosed is the approved application for permit to redrill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (90759-3607 (pager). Si J DATED this) day of July, 2006 cc: Department of Fish 8v Game, Habitat Section w/o encl. .Department of Environmental Conservation w/o encl. ~9~ ~~ STATE OF ALASKA ALAS~IL AND GAS CONSERVATION COMMI~N PERMIT TO DRILL 20 AAC 25.005 ~~~~~'° JUN 2 9 2006 Alaska Oil & Gas Cons. Ctxmniss;an 1 a. Type of work ^ Drill ®Redrill ^ Re-Entry 1 b. Current Well Class O Exploratory ^ Development Gas Q Service ^ Multiple Zone ^ Stratigraphic Test ®Development Oil ^ Single Zone 1 c. Specify if well ism for: Q Coalbed Methane"G8s Hydrates ^ Shale Gas 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket Q Single Well Bond No. 6194193 11. Well Name and Number: PBU D-266 611 ~oG 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 12627 TVD 9007 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay 4a. Location of Well (Governmental Section): Surface: UM T11 N R13E ' WE SEC 23 ' 7. Property Designation: ADL 028284 Pool , , , 1716 SNL, 1692 L, . Top of Productive Horizon: 89' NSL, 520' WEL, SEC. 15, T11N, R13E, UM 8. Land Use Permit: 13. Approximate Sp Dat Octobe 1, 6 Total Depth: 101' SNL, 2364' WEL, SEC. 22, T11 N, R13E, UM 9. Acres in Property: 2560 14. Distance to Ne est Property: 26,000' 4b. Location of Well (State Base Plane Coordinates): Surface: x-653463 y-5959273 Zone-ASP4 10. KB Elevation Plan (Height above GL): 76.7 feet 15. Distance to Nearest well Within Pool: 700' 16. Deviated Wells: Kickoff Depth: 8320 feet Maximum Hole Angle: 91 de sees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 3723 Surface: 2881 18. Casin Pro ram: S 'fications To - Settin De th -Bottom Quanti of Cement, c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta a data 8-1/2" 7" 26# L-80 BTC-M 1752' 8161' 7001' 9913' 8499' 397 cu ft Class'G' 6-1/8" 4-1/2" 12.6# L-80 IBT-M 2860' 9766' 8369' 12626' 9007' 416 cu ft Class'G' 1 g, PRESENT WELL CONDITION SUMMARY (To be complefed for Redrill and Re-entry Operations) Total Depth MD (ft): 12490 Total Depth TVD (ft): "9051 - Plugs (measured): 3000 Effective Depth MD (ft): 12415 Effective Depth TVD (ft) 9037 Junk (measured): 10066 using Length Siae Cement Volume' MD TVD Conductor /Structural 110' 20" 8 cu ds Concrete 110' 110' Surface 2709' 13-3/8" 3260 cu ft PF 'E', 465 cu ft Permafrost 2709' 2709' Intermediate 10137' 9-5/8" 1880 cu ft Class'G', 230 cu ft Class'G' 10137' 8478' Production Liner 1203' 7" 435 cu ft Class 'G' 9867' - 10808' 8282' - 8977' Liner 2325' 2-7/8" 95 cu ft Class 'G' 10157' - 12482' 8493' - 9050' Perforation Depth MD (ft): 10730' - 12390' Perforation Depth TVD (ft): 8919' - 9032' 20. Attachments ®Filing Fee, $100 Q BOP Sketch ®Drilling Program ^ Time vs Depth Plot Q Shallow Hazard Analysis Q Property Plat Q Diverter Sketch Q Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Contact John Rose, 564-5271 Printed Name ve Wesley Title Senior Petroleum Engineer, ENS / / Prepared By Name/Number: Si nature Phone 564-5153 Date~p/Z?/~ Terrie Hubble, 564-4628 Commission Use Only Permit To Drill Number: p API Number: Permit Appr val 50-029-21530-02-00 Date: ~. (~ See cover letter for 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 shale..s/// Samples Req'd: ^ Yes~No Mud Log Req'd:.,^,/Y~No -~~ 5~ ~Q ~ C -~ p Tj ~ O Q ~! j..., ~ HzS Measures~Yes ^ No 'sectional Survey Req'd: ~g Y Q No Other. / 1~~s>,t~,f ~ ~~~ zs.o3sCtt) G1~ al~~~~ ~ot~ d r~d,~k.e. ~ r~hwr~e . APPROVED BY THE COMMISSIO Date ~~~(/~ ,COMMISSIONER Form 10-401 Revised 12/2005 r ~ w ~ ~ ~ ~ `-~ ~~ ~/ ~i suomit m vupncaie • • To: Winton Aubert, Petroleum Engineer Alaska Oil & Gas Conservation Commission ~J From: John Rose, ODE IJ Date: June 28, 2006 Re: D-26B Sidetrack Permit to Drill The D-26B well is scheduled to be drilled by Doyon Rig #14 which is currently scheduled to move onto the location ~10/O1/06. The plan is to exit the parent D-26 wellbore from the 9-5/8" casing at 8320' MD with an 8-1/2" BHA. The 8-1/2" hole will then be drilled to the top of the / Sag River formation where a 7" drilling liner will be run and cemented. A 6-1/8" hole will then be drilled building to horizontal in the Ivishak Zone ZB. The planned well then runs horizontally for approximately 1437' staying above the HOT to a final well TD at 12,626' MD. A solid 4- 1/2" production liner will be run and cemented in place. Please note the following Well Summary as detailed below: D-26B Planned Well Summary (06/08/06) Well D-26B Well Horizontal Target Zone 2B T e Sidetrack Ob'ective AFE Number: PBD4P2526 API Number: 50-029-21530-02 Surface Northin Eastin Offsets TRS Location 5959273 653463 1716' FNL / 1692' FEL 11 N, 13E, 23 Target Northin Eastin Offsets TRS Locations 5960994 649318 89' FSL / 520' FEL 11 N, 13E, 15 Bottom Northin Eastin Offsets TRS Location 5,960768 647478 101' FNL / 2364' FEL 11 N, 13E, 22 Planned KOP: 8320' and / 7120' tvd Planned TD: 12,627' and / 9007' tvd Ri Doyon 4 CBE: 42.42' RTE: 76.7' Directional Program i A roved Well Ian: W 03 Exit oint: 8320' and / 7120' tvd Maximum Hole Inclination: --90° in the tanned 6 1/8" roduction section. Proximit Issues: A ro ma be run on this well to minimize anti-collision risks. Survey Program: Standard MWD/IIFR/MS. Nearest Well within ool: H-07 (700') Nearest Pro ert Line 26,000' North D-26B Sidetrack Page 1 • Logging Program • Hole Section: Required Sensors /Service 8 1/2" intermediate: Real time MWD Dir/GR/Res/PWD throu hout the interval 6 1/8" production: Real time MWD Dir/GR/Res in the build Real time MWD Dir/GR/Res/ABI/Den/Neu in the lateral. MAD pass build for Den/Neu. Sam les at 50' intervals throu hout. Cased Hole: None tanned O en Hole: None tanned Mud Pro gram Hole Section / o eration: Mill window in the 9 5/8" casin at -8320' and T e Densit MBT PV YP API FL H LSND 10.4 <12 15-22 30-40 <6.0 9.0 -10.0 Hole Sectio, / o eration: Drillin 8 1/2" interval from 8320' and to section TD T e Densi MBT PV YP API FL H LSND 1 .4 <15 15-22 20-24 4.0 - 6.0 9.0 -10.0 Casing /Tubing Program Hole Size Casing/Tubing Size Wt. Grade Connection Length Top and / tvd Bottom and / tvd 8'/2" 7" 26.0# L-80 BTC-M 1752' 8161'/7001' 9913'/8499' 61/8" 4'h" 12.6# L-80 IBT-M 2860' 9766'/8369' 12,626'/9007' Tubin 4 ~/z" 12.6# 13Cr VamTo 9769' Surface 9769'/8372' Casing /Formation Integrity Testing Test Test Point Test Type Test pressure 9 5/8" casin Bride lu to surface 30 min recorded 3,500 si surface 9 5/8" casin window 20' new formation be and FIT 11.3 EMW 7" casin Float a ui ment to surface 30 min recorded 3,500 si surface 7" casin shoe 20' new formation be and FIT 9.5 EMW 41/z" roduction liner Float a ui ment to surface 30 min recorded 3,500 si surface Cementing Program Casin Strin 7", 26#, L-80, BTC-M intermediate liner Slurry Design Basis: Lead slurry: None planned. Tail slurry: 1593' of 7" X 8-1/2" annulus with 40% excess, plus 80' of 7", 26# shoe track, plus 150' of 7" x 9-5/8" liner lap, plus 200' of 9-5/8" x 4" drill pipe annulus. Pre-Flush None tanned S acer 35 bbls MudPUSH at 12.0 Fluids Sequence /Volume: Lead Slur None tanned Tail Slur 71 bbls / 397 cf / 43 xs Class `G', 15.8 .1 f/sk. ~.~ .y Casin Strin 4 1/2", 12.6#, L-80, IBT-M solid production liner D-26B Sidetrack Page 2 C c: Lead slurry: none planned Slurr Desi n Basis: y g Tail slurry: 2713' of 4 1/2" X 6 1/8" annulus with 40% excess, plus 80' of 4 ' " ' " " ' 1/2 , 12.6# shoe track, plus 150 of 7 X 4 ~/2 liner lap, plus 200 of 7 X 4 drill i e annulus. Pre-Flush 25 bbls CW 100 Fl id /V l S S acer 50 bbls MudPUSH at 9.6 u s equence ume: o Lead Slur None tanned Tail Slur 74 bbl / 416 cf / 9-sx Class `G', 15.8 ; 1.17 f/sk. Lam" ~--r Well Control Well control equipment consisting of S,OOOpsi working pressure pipe rams (2), blind/shear rams, and an annular preventer will be installed and is capable of handling maximum potential surface pressures. BOPE and drilling fluid system schematics are currently on file with the AOGCC. Well Interval: 8 1/2" intermediate interval Maximum anticipated BHP: 3,723 psi at 8422' TVD. Maximum surface pressure: 2,881 pSl (based upon BHP and a full column of gas from TD ~ 0.10 psi/ft) Calculated kick tolerance: Infinite with 10.4 ppg EMW (FIT to 11.3 ppg) Planned BOPE test pressure: 250 psi low / 3,500 psi high / 7 day test cycle (Pre drilling phase) 14 da test c cle Drillin o erations BOPE configuration for 7" Variable Bore Rams will remain installed, rather than C/O to 7" pipe rams drilling liner. while running 1752' of 7" liner. In the event of a kick the rig will follow the current best practice of picking up a joint of drill pipe crossed over to casing thread and running in the hole placing the drill pipe across all rams. This configuration provides two sets of employable rams, rather than one. Well Interval: 6 1/8" production interval Maximum antici ated BHP: 3,200 psi at 8,533' TVDss. Maximum surface ressure: 2,347 pSl (based upon BHP and a full column of gas from TD @ 0.10 psi/ft) Calculated kick tolerance: Infinite with 8.5 EMW FIT to 9.5 Planned BOPE test ressure: 250 si low / 3,500 si hi h - 14 da test c cle Drillin o erations Planned com letion fluid: 8.4pp seawater / 6.8p Diesel BPXA requests a variance to the provisions of 20 AAC 25.035 (e)(10)C regarding the function pressure test requirement after the use of BOP equipment for other than well control or equivalent purposes, except when the routine use of BOP equipment may have compromised their effectiveness. (Example would be when pipe rams are inadvertently closed on a tool joint during routine operations.) The activities associated with this request will not compromise the integrity of the BOP equipment. Disposal Annular In'ection: No annular injection in this well. Cuttings Handling: Cuttings generated from drilling operations are to be hauled to the Grind and Inject station at DS-04. An metal cuttin s should be sent to the North Slo a Borou h. Fluid Handling: All drilling and completion fluids and other Class II wastes are to be hauled to DS-04 j ection. All Class I wastes are to be hauled to Pad 3 for dis osal. for in D-266 Sidetrack Page 3 • Geologic Prognosis • Est. Formation To s Uncertain Commercial Hydrocarbon Bearin Est. Pore Press. Est. Pore Press. Formation (TVDss) (feet) (Yes/No) (Psi) (ppg EMW) NOTE: All formation tops are required from 1000' above proposed KOP to TD for sidetracks NOTE: All formation tops are required from surface to TD for all new wells CMl -7352 THRZ -8026 BHRZ -8170 No TJD -7944 20 No TJC -8121 20 No TJB -8261 20 No TJA -8338 20 No TSGR -8422 20 Yes TSAD -8533 20 Yes 3200 TCGL -8707 20 Yes BCGL -8792 20 Yes 23SB -8858 20 Yes 22TS -8906 20 Yes 21TS -8946 20 Yes HOT -8950 20 Yes TZ1B -8972 20 Yes Fault Prognosis SSTVD Throw Formation Where Encounter Fault MD Intersect Intersect Est. Throw Direction Uncertaint Fault #1 -Zone 4 10130 -8605 1 O' N +/-100 ft Fault #2 Fault #3 Fault #4 Comments The proposed D-26B well lays at the boundary betweenmoderate and higher risk provinces offthefield for lost circulation at faults asdocunirntedby the WURD team but the risk of loss circulation events should be average. Twelve loss circulation events were encountered in the Ivishak and Kingak sections in 8 of the surrounding 24 wells (33%) as detailedbelow. One small fault is expected to be encountered:by the well in Zone 4 near 10130 fr MD. Additional faults aze present 260 feet and 425 feet south of the planned wellbore as well as 400: feet north. The polygon boundaries are lurdlines in:these directions: The polygon does not allow for an extension due to proximity to the H-17 and proposed H-14B offtakepoints. Loss Circulation Events Well Type Loss (bbl) MD SSTVD Formation Fault? D-11A Rig 140 8960 -7752 Kingak No D-26 Rig .120 10689 -8816 Zone.2 No D 27A Coil 1 bbl/min 11:300 -8955 Zone 2 Yes H-04A Coil -100 11615 -8781 Zone 3 Yes H-04A Coil .5 bbUmin 11900 -8842 Zone 2 Yes H-04A Coil 50 12580 -8955 Zone 2 No H-04A Coil .6 bbl/min 12860-8945 Zone 2 Yes H-17 Rig 10 9995 -8400 Kingak Yes H-.12A Rig 331 9953 -8476 Shublik No H 19B Coil' 15 .12350 -8936 Zone 2 No H-36 Rig 1155 1125 L -8832 Zone 2 No H-36 Rig 2600 11446 -8929 Zone 2 Yes Fault Coordinates for Ma in X V SSTVD Feet to Plan Throw Fault #1 First Point 649640 5960880 -8605 0' 10' N Fault #1 Second Point 649960 5960710 -8605 280' 10' N Fault #2 First Point 648870 5960540 -8945 425' 10' N Fault #2 Second Point 648580 5960325 -8945 605' 10' N Fault #3 First Point 648290 5960595 -8943 300' S' N Fault #3 Second Point 648055 5960630 -8943 260' S' N Fault #4 First Point 648090 5961440 -8943 550' 10' S Fault #4 Second Point 647800 5961235 -8943 390' 20' S Fault #4 Third Point 647580 5961200 -8943 400' 20' S Fault #4 Fourth Point 647360 5961185 -8943 430' 10' S D-266 Sidetrack Page 4 • PBU Sidetrack D-26B Operations Summary (06/13/06) Current Condition: / Well currently shut in with a 4-1/2"kill string at 2544' MD and 2 CIBP's set at 3000' MD and 9830' MD. / MITOA passed to 2000 psi on 4/8/05. / The 9-5/8" tested to 3500 psi for 30 minutes from a retainer at 9850' on 5/10/05. / The 9-5/8" tested to 3500 psi for 30 minutes from a retainer at 3000' on 6/01/05. / Top of 4-1/2"stub at 10,066'MD w/junk on top oft-7/8"liner. / Well infectivity at 30 bph at 2000 psi during last RWO. / Well is loaded wifh seawater and diesel freeze protect. Pre-Riot Work: 1. Bleed OA, IA & tubing to 0 psi. PPPOT-T & IC. Function all LDS. 2. CMIT TxIA to 3500 psi. 3. MIT OA to 2000 psi. 4. Bleed casing. and annulus pressures to zero. 5. Set a BPV and test to 1000 psi from tubing annulus. Secure the well. Level the pad as necessary. Rig Operations: 1. MI/RU 2. Circulate out diesel freeze protection and displace the well to seawater. Install TWC. 3. Nipple down tree. Nipple up and test BOPE to 3,500psi. Pull TWC. 4. R/U. Pull 4'/2" tubing (kill string) from 2544'. 5. MU 8-1/2" clean-out assembly and clean-out the 9-5/8" casing down to the top of the EZSV at 9830' TMD and test casing to 3500 psi for 5 minutes. (NOTE: This clean-out run will include drilling-up the EZSV currently set at 3000' MD.) 6. RIH with open-ended drillpipe and place 250' balanced plug (15.8 ppg G cement) on top of the EZSV at 9830' MD. 7. RU E-line and RIH with 9-5/8" GR/JB & GR/CCL to TOC 9580' MD in preparation to set EZSV for whipstock. 8. With E-line, run tie-in gyro from surface to TOC (Gyro Data). 9. With E-line, set 9-5/8" EZSV retainer and set at ±8344' to allow for an 8320' MD whip-stock KOP (max hole angle 51 degrees at 5800' MD). 10. Set storm packer and change-out 9-5/8" pack-offs (pull pack-offs thru BOP stack if possible). 11. Pressure test 9-5/8" casing to 3500 psi for 30 minutes and chart. 12. /U and RIH with 9 5/8" Baker bottom-trip anchor whip stock assembly. Orient whipstock as desired and set on bridge plug at 8344' MD. Shear off of whip-stock. .,~; 13. Displace the well to 10.4 ppg LSND. Mill the window and 20' new formation. Perform FIT to 11.3 ppg. a 14. RIH w/ 8'/z" DIR/GR/Res drilling assembly and drill to top Sag River. POH. ~ 15. Run and cement 7" L-80 BTC-M drilling liner. ~' 16. RIH with 6 1/8" TCI bit /motor assembly with GR/Res/ABI to landing collar. 17. Test casing to 3500 psi. Drill shoe tract. ~ 18. Displace the well to 8.4 ppg Flo-Pro drilling fluid. Drill 20' formation; perform FIT to 9.5 ppg EMW. 19. Drill ±1300' to land in horizontal section in Z2B. CBU, POH. 20. RIH with PDC /motor assembly with real-time Neu/Den. ,~.. 21. MAD pass build section to 100' above PGOC per the well-site geologist and continue drilling to TD at Q ±12626' MD. ~- 22. Circulate, short trip, spot liner running pill, POOH. j 23. Run and cement a 4'/z", 12.6#, L-80, IBT-M solid production liner. POOH. cJ 24. RIH with 2'/z" perf guns and perforate ±800'. POH and LDDP and pert guns. --~ 25. R/U and run 4 1/2", 12.6#, 13Cr, VamTop completion tubing. Land the tubing RILDS. ~, 26. Reverse circulate inhibited seawater to the packer depth. 27. Drop ball & rod and set packer and individually test the tubing and annulus to 3,500psi 30 minutes. Record each test. ~, 28. Shear the DCK valve and pump each way to confirm shear. 29. Set a TWC and test to 1000 psi. 30. Nipple down the BOPE. Nipple up the tree and test to 5,000psi. Pull TWC w/lubricator. 31. Freeze protect the well to 2,100' 32. Install BPV and secure the well j 33. Rig down and move off. D-26B Sidetrack Page 5 • • Post-Rig Work: 1. Install well house and instrumentation. 2. MI / RU slick-line. 3. Pull the ball and rod / RHC plug from landing nipple below the production packer. 4. Install gas lift valves. 5. POP well to test unit until cleaned up. D-26B Sidetrack Page 6 • • D-26B Potential Drilling Hazards Post on Rig • Pre-job HAZOP's and Safety meetings are recommended when there is a clear change in workscope. If at any time things don't feel or look right, STOP the job and discuss the situation before making the next move. • Flash Points o Dead Crude= <40degF o Methanol (neat)= 52degF o Diesel=100degF • Hydrogen Sulfide o D-Pad is not an H2S pad. However, Standard Operating Procedures for H2S precautions should still be followed at all times. o Offset H2S readings: D-21 of 6 ppm on 08/01 /98 & D-20 of 10 ppm on 03/17/01. • Bottom Hole Pressure 0 3200 psi (7.2 ppg) @ 8533'ss o The 8.4 ppg drilling fluid overbalance in the reservoir. will provide a 533 psi static • Maximum anticipated wellhead pressure: 0 2347 psi w/full column of gas • Potential for loss circulation o Moderate • Faults o Zone 4 at 10,130' MD (10' throw). • Close Approaches o H-07 -1055' ctr - ctr 12,624' MD. o D-26A - 24' ctr - ctr 11,364' MD. o D-27A -1058' ctr - ctr 10,238' MD. o H-36A - 1008' ctr - ctr ~ 11,747' MD. D-26B Sidetrack Page 7 COMPANY DETAILS iyy~ 1 q~ BP Amoco ~Y~F Calculation Method: Minimum Curvature Error System: ISCWSA Scao Method: Trav Cylinder North Error Surface: Elliptical +Casing Warning Mcthod: Rules Based ,. . c s °a s~ 8000 v - rt ~ T F fi REFERENCE INFORMATION SURVEY PROGRAM Co-ordinate (NiEI Reference: Well Centre: D-26, True North Depth Fm Depth To Survey /Plan Tool Vcrtical (TVD) Reference: 34.3 +42.42 76.72 Plan: D-268 wp03 (D-26/Plan D-268) Section (VS) Reference: Slot- 26 (I1.IIlIN,l1.110E) 832U.W 12626.%% Plartced: D-26B wp113 V 17 MWD+IFR+MS ih Reference: 34.3 +42.42 76.72 Measured De Created By: Troy Jakabosky (jakatU(a:bp.coBlte: 6/%/2(N16 f Calcu alion Method: Minunum Curvatre WELL DETAILS CASING DETAILS ~, Name +N/-S +E/-W Northing Fasting Latitude Longitude Slot ' No. TVD MD Name Size D-26 3655.9U 1372.29 5959272.99 653463.W 7U`1T44.447N 14%"45'26.318W 26 1 8498.72 9913.24 7" 7.000 2 9006.74 12626.00 41/2" 4.500 T ARGET DETAILS ' ~- Name TVD +N%-S +E/-W Northing Aastimg Shape - - - D-268 TI RY99.72 IRU5.42 -4109.30 S961IY94.IR/ 649318.W Poirot D-26B T4 9W6.72 1612112 -$953.67 596117fi%.W 647478.U11 Point D-268 T3 911 19.72 175493 -5163.63 59fi(1922.0(1 64%265.W Point ITVD D-26B T2 9031.72 17ri9.W -4529.75 596W69.1111 648898.W Point .ORTVD - - ~ ~ ---- ~ - -- SECTION DETAILS Sec MD Inc Azi TVD +N/-S +Ei-W DLeg TFace VSec Target 16'TVD ~97 - - -- ~ - -- - -- ~ ~ 1 8320.00 40.95 298.87 7120.00 1129.60 -2835.28 0.00 0.00 3032.23 . 2 8340.00 41.22 302.50 7135.08 1136.31 -2846.58 12.00 85.00 3044.89 3 8660.00 28.48 300.18 7397.16 1231.70 -3002.10 4.00 185.00 3219.98 ~ ~ 4 9940.00 28.48 300.18 8522.24 1538.54 -3529.78 0.00 0.00 3809.64 _- _ . _ - _ 5 10265.50 51.27 300.18 8770.40 1642.76 -3708.99 7 00 0.00 4009.90 ~ ~ "i~ - ~ 6 10425.78 51.27 300.18 8870.69 1705 61 -3817.08 0.00 0.00 4130.68 - I- - r-' -i~ 7 10766.49 84.00 280.00 8999.72 1805.42 -4109.30 11.00 -34.32 4438.84 D-268 TI -! - L ~ ~ - - 8 10900.44 65.29 265.26 9012.29 1811.50 -4242.15 II.00 -85.71 4568.64 I I -Y-, --- - ~ - - ~~- ----- ---- ~---- 9 11096.37 85.29 265.26 9028.40 1795.35 -4436.74 0.00 0.00 4752.20 10 I 1189.69 90.63 266.92 9031.72 1789.00 -4529.75 6.00 17.34 4840.29 D-266 T2 __. _ .. ___~__ ..__._ -..--. II 11198.27 91.14 267.02 9031.59 1788.54 -4538.32 6.00 10.35 4846.44 ___... __ _ 12 11766.73 91.14 267.02 9020.29 1758.96 -5105.90 0.00 0.00 5386.42 _ _ _ 13 11824.61 90.00 265.00 9019.72 1754.93 -5163.63 4.00 -119.44 5443.08 D-266 T3 ~ __ ~ ~ __ __ I4 11960.90 91.01 259.64 9018.51 1736.73 -5298.64 4.00 -79.26 5568.60 - -f--r-~-}--^.--,- _ - 15 12626.88 91.01 259.64 9006.72 1617.02 -5953.67 0.00 0.00 6169.35 D ?68 T4 ---..... ' - FORMATION TOP DETAILS Start Dir 7/ I Oll' : 99411' MD, %522.24 "IV D - ------~ End Dir : (1265.5'MD, ri770.4 'TVD - - --- ---- -:- - ---- - No. TVDPath MDPath Formation -- ~ ~ 1 7428.72 8695.90 CMI -- - -- - - -- ' - - ~ Start r 1 Ii1lN1' : 111425.7R ' MD, ri%71 .69'T VD ~_ -_- ~ _ - - - -` _-" 2 S 102.72 9462.71 THRZ --- -- - ~-~-- - i~ ~ End Dir:l 91%L 9012. 44'MD 29'TVD - -- 3 8246.72 9626.54 BHRZ - , - S D , u 6/1 W': 1109 6.37 M D, 028ATVD ~ 4 8020. T_ 9369.42 TJD 5 8197.72 9570.79 TJC - _ - - 6 8337.72 9730.07 TJB _ ~ End Dir : 1119>;.2 T D, 90J LSY 'TVD 7 8414 72 9817.67 TIA _._ _ i ~ - 8 8498 72 9913.24 TSGR ', ~ 9 8609.72 10043.33 TSAD _ ~ i j _ 10 8783.72 10286.78 TCGL - _ -_ -.~-- y -_.:_ _-. I _ _ _, ` I1 8868.72 10422.63 BCGL - 12 8934 72 1054250 2358 1' -~ - ~- - ~ _ ~ ~ 1 - - - "-T_ - 13 8982.72 10673 71 2278 ~ ~ -- -r - ~ i - - - .~ ~ - ~-` _ 14 9022.72 11027.30 21TS ;GR ': ~ -- ---- - -.~- - - ~ - - T-~- 15 9026 72 11075.97 HOT 2800 _. .. ._',---_- ....__ HOT ~ u-26 lu-t6nl Tot I Depth : 12626.ri%' MD,yI%M. 2' TVD 4000 4400 4800 5200 5600 6000 Vertical Section at 285.19° [400ftlin] • ('UMYANY Uk IAILti Kli~i:IU:N('F WFOKMA'i I(IN dY Am~wv f.~.rNivalC (N/F)Wf ~roM: Wea ('rmn:lY26,'rm. NlMh Vuh'lllVU1144 t41 ~ 42-4 76.7 i 1i! (~aY,W'aW M.1hx1-M-uumum(urvaNm 1 p (VSI KCI 111 26 (I1110N U.Wli) 1' rSY~v'm: 15(WSA Mw JL3<fnh 141 41 4.4 ](.]- 5.... MiMuJ: I'rar' l)IivdrU Pkuth t a4vlati~u h11hd. hfaumum (~malurt Fniu SmWcc: FJlrylv:el ~. ('vwg W' - hlelhW: Nub. da+cJ SECTION DETAILS Sec MD Inc Azi TVD +N'-S +E.-W DLeg TFace VSec Tazget 1 8320.00 40.95 298.87 7120.00 1129.60 -2831.28 0.00 0.00 3032.23 2 8340.00 41.22 302.50 7135.08 1136.31 -284658 12.00 85.OU 3044.89 3 8660.00 28.48 300.18 7397.16 1231.70 -3002.10 4.00 IB5.00 3219.98 4 9940.00 28.48 300.18 8522.24 1538.54 -3529.78 0.00 D.00 3809.64 5 10265.50 51.27 300.18 8770.40 1642.76 -3708.99 7.00 0.00 4009.90 6 10425.78 51.27 300.18 8870.69 1705.61 -3817.08 / 0.00 0.00 4130.68 7 10766.49 84.00 280.00 8999.72 1805.42 -4109.30 11.00 -34.32 4438.84 D-26BT1 8 10900.44 85.29 265.26 9012.29 1811.50 -4242.15 11.00 -65.71 4568.64 9 11096.37 81.29 265.26 9028.40 1791.35 -4436.74 0.00 0.00 4752.20 10 11169.69 90.63 266.92 9031.72 1789.00 -4529.75 6.00 17.34 4340.29 D-268 T2 11 11198.27 91.14 267.02 9031.59 1786.54 -4538.32 6.00 10.35 4848.44 12 11766.73 91.14 267.02 9020.29 1758.96 -5105.90 0.00 0.00 5388.42 13 11824.61 90.00 265.00 9019.72 1754.93 -5163.63 4.00 -119.44 5443.08 D-268 T3 14 11960.90 91.01 259.64 9018.51 1736.73 -5398.64 4.00 -79.26 5568.60 IS 12626.88 91.01 259.64 9006.72 1617.02 -5953.67 0.00 0.00 6169.35 D-26BT4 c °o s C 0 0 2 rn SIIKVFY 1'I((KiKAM - - - -~- Ylau: 11-'68 WpU7 (V ^_6,7'lad U-?GB) Ueplh Fm lkplh TO 5urvylYGv Tuol CrralCd BY:TNY lakalro~'~C1z1UQihpsu~lC: 6/5/2006 512U.UI1 12626%K YlavnJ: 11264 w1A)7 VI] MWU~n~K~MS ('hickCd: Dale: WF1l IN1An_5 Nava ~NI-5 ~1I-W Nmthivg Fai4wg InmuJe Wv&tlud~~ 54x1 1126 i655!HI 11]2.2'1 5'15'1272.'n 65ig6t IMI 7U 1]'11.4i]N 145.45'26 i15W 26 . TARGET DETAILS ~' Name TVD +N/-S +E/-W Northing Easting Shape -'- ~ D-26BT1 8999.72 1805.42 -4109.30 5960994.00 649318.00 Point D-268 poly 6999.72 1805.42 -4109.30 5960994.00 649318.00 Polygon ---- D-26BT4 9006.72 1617.02 -5953.67 5960768.00 647478.00 Point D-266 T3 9019.72 1754.93 -5163.63 5960922.00 648265.00 Point ' CASING DETAILS r r-~ No. TVD MD Name Size 1 8496.72 9913.24 7" 7.000 -,,.. a ~, ~ _- ~;. ' 2 9006.74 12626.00 4 1/2" 4.500 _. _ _ _ FORMATION TOP DETAll.S No. TVDPath MOPath Formation ~- - - - --- -- - - . T_..- ~ - 1 7428.72 8695.90 CM - - - ~ - - - - ~ 2 8102 72 9462.71 THRZ ~ ~ ~ 3 8246 72 9626.54 BHRZ I I i T - 4 8020 72 9369.42 T1D ~ 5 8197 72 9570.79 TIC ': _.... - ___. 6 8337.72 9730.07 TJB -_. _.. 7 6414.72 9817.67 T1A - - -_ ,_ _ 8 8498.72 991324 TSGR - ~ - ~ - - 9 8609.T_ 10043.33 TSAD 10 6783.72 10286.78 TCGL - \ - - ~ ~ - - - ~ ~ ~ ~ ~ ~ 11 8868. T_ 10422.63 BCGL ~~~ ~ - - -- - - - - ---- ~ - - 12 8934.72 1054'_.50 2386 - __ ), - -- - - --- --- - - 13 898'_.72 10673.71 22TS {--r ~~ ~ r- ~ -~ 14 90?2.72 1 1027.30 21TS ^ " -^ Ll_ T --~--~~ I S 9026.72 1 1075.97 HOT • -6000 -5200 -4400 Wes[(-)iEast(+) [g00fU'id~ n I I rl I -3600 -3200 -2800 Sperry-Sun BP Planning Report Company: BP Amoco Date: 6(812006 Time: 10:59:29 Page: 1 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: D-26, True North Site: PB D Pad Vertical (TVD) Reference: 34.3 + 42.42 76.7 Well: D-26 Section (VS) Reference: Well (O.OON,O.OOE,285.1 9Azi) `Wellpath: Plan D-286 Sarvsy Calculation Method: Minimum Curvature Db: Oracle Plan: D-266 wp03 Date Composed: 5/8/2006 Version: 17 Principal: Yes Tied-to: From: Definitive Path Field: Prudhoe Bay North Slope UNITED STATES Map System: US State Plane Coordinate System 1927 Map Zone: Alaska, Zone 4 Geo Datum: NAD27 (Clarke 1866) Coordinate System: Well Centre Sys Datum: Mean Sea level Geomagnetic Model: bggm2005 Site: PB D Pad TR-11-13 UNITED STATES :North Slope Site Position: Northing: 5955590.34 ft Latitude: 70 17 8.492 N From: Map Easting: 652165.06 ft Longitude: 148 46 6.316 W Position Uncertainty: 0.00 ft North Reference: True Ground Level: 0.00 ft Grid Convergence: 1.16 deg Well: D-26 Slot Name: 26 D-26 Well Position: +N/-S 3655.90 ft Northing: 5959272.99 ft Latitude: 70 17 44.447 N +E/-W 1372.29 ft Easting : 653463.00 ft Longitude: 148 45 26.318 W Position Uncertainty: 0.00 ft Casing Points MD TVD - Diameter Hole Size. Name; ft ft in in 9913.24 8498.72 7.000 8.500 7" 12626.00 9006.74 4.500 6.125 41/2" Formations MD TVD Formations Lithology Dip Angle Dip Direction ft ft deg deg 8695.90 7428.72 CM1 0.00 0.00 9462.71 8102.72 TH RZ 0.00 0.00 9626.54 8246.72 BHRZ 0.00 0.00 9369.42 8020.72 TJD 0.00 0.00 9570.79 8197.72 TJC 0.00 0.00 9730.07 8337.72 TJ B 0.00 0.00 9817.67 8414.72 TJA 0.00 0.00 9913.24 8498.72 TSGR 0.00 0.00 10043.33 8609.72 TSAD 0.00 0.00 10286.78 8783.72 TCGL 0.00 0.00 10422.63 8868.72 BCGL 0.00 0.00 10542.50 8934.72 23S6 0.00 0.00 10673.71 8982.72 22TS 0.00 0.00 11027.30 9022.72 21 TS 0.00 0.00 11075.97 9026.72 HOT 0.00 0.00 0.00 TZ1 B 0.00 0.00 Targets Map Map <- Latitude -> ~-- Longitude -> Name Description TVD +N/-S +Ef-W Northing. Easting Deg Min Sec Aeg Min Sec Dip. Dir. _ ft ft ft ft ft D-266 T1 8999.72 1805.42 -4109.30 5960994.00 649318.00 70 18 2.192 N 148 47 26.120 W D-266 poly 8999.72 1805.42 -4109.30 5960994.00 649318.00 70 18 2.192 N 148 47 26.120 W -Polygon 1 8999.72 1597.02 -4386.63 5960780.00 649045.00 70 18 0.141 N 148 47 34.202 W -Polygon 2 8999.72 1592.75 -5156.94 5960760.00 648275.00 70 18 0.094 N 148 47 56.659 W -Polygon 3 8999.72 1458.90 -5949.89 5960610.00 647485.00 70 17 58.772 N 148 48 19.773 W -Polygon 4 8999.72 1800.59 -6027.94 5960950.00 647400.00 70 18 2.131 N 148 48 22.056 W -Polygon 5 8999.72 2015.24 -5028.27 5961185.00 648395.00 70 18 4.250 N 148 47 52.916 W -Polygon 6 8999.72 2046.96 -4377.44 5961230.00 649045.00. 70 18 4.566 N 148 47 33.942 W Sperry-Sun BP Planning Report Company: BP Amoco Date: 6/8/2006 Time: 10:59:29 Page: 2 Field: Prudhoe Bay Co-ordinate(NE) Reference: Welk D-26, True North .:Site: PB D Pad Vertical (TVI)) Reference: 34 .3 + 42.42 76.7 Well: D-26 Section (VS}.Reference: Well (O.OON,O.OOE,28 5.19Azi) Weppath: Plan l}266 Survey Calculation Method: Minimum Curvature Dh: Orade Targets _ Map Map <--- Latitude --> <- Longitude ---> Name Description TV D +N/-S +E/-W Northing Fasting Deg Min Sec Deb htin Sec Dip. bir. ft ft - ft ft ft D-266 T4 9006. 72 1617.02 -5953 .67 5960768.00 647478.00 70 18 0.327 N 148 48 19.886 W D-266 T3 9019. 72 1754.93 -5163 .63 5960922.00 648265.00 70 18 1.689 N 148 47 56.857 W D-26B T2 9031. 72 1789.00 -4529 .75 5960969.00 648898.00 70 18 2.028 N 148 47 38.378 W P-an Section Information MD Incl Azhn TVD +N/-S +E(-W DLS Build: Turn TFO Target: fY deg deg ft ft ft deg/100ft deg/100ft dey/100ft deg 8320.00 40.95 298.87 7120.00 1129.60 -2835.28 0.00 0.00 0.00 0.00 8340.00 41.22 302.50 7135.08 1136.31 -2846.58 12.00 1.33 18.15 85.00 8660.00 28.48 300.18 7397.16 1231.70 -3002.10 4.00 -3.98 -0.73 185.00 9940.00 28.48 300.18 8522.24 1538.54 -3529.78 0.00 0.00 0.00 0.00 10265.50 51.27 300.18 8770.40 1642.76 -3708.99 7.00 7.00 0.00 0.00 10425.78 51.27 300.18 8870.69 1705.61 -3817.08 0.00 0.00 0.00 0.00 10766.49 84.00 280.00 8999.72 1805.42 -4109.30 11.00 9.61 -5.92 -34.32 D-266 T1 10900.44 85.29 265.26 9012.29 1811.50 -4242.15 11.00 0.96 -11.01 -85.71 11096.37 85.29 265.26 9028.40 1795.35 -4436.74 0.00 0.00 0.00 0.00 11189.69 90.63 266.92 9031.72 1789.00 -4529.75 6.00 5.73 1.79 17.34 D-26B T2 11198.27 91.14 267.02 9031.59 1788.54 -4538.32 6.00 5.90 1.08 10.35 11766.73 91.14 267.02 9020.29 1758.96 -5105.90 0.00 0.00 0.00 0.00 11824.61 90.00 265.00 9019.72 1754.93 -5163.63 4.00 -1.97 -3.48 -119.44 D-266 T3 11960.90 91.01 259.64 9018.51 1736.73 -5298.64 4.00 0.74 -3.93 -79.26 12626.88 91.01 259.64 9006.72 1617.02 -5953.67 0.00 0.00 0.00 0.00 D-26B T4 Survey MD Incl Azim TVD Sys:TVD VS N/S E/W DLS MapN MapE TooUGo ft deg deg ft ft ft ft ft deg/100ft ft ft ; 8320.00 40.95 298.87 7120.00 7043.28 3032.23 1129.60 -2835.28 0.00 5960344.39 650605.45 Start Dir 1 I 8340.00 41.22 302.50 7135.08 7058.36 3044.89 1136.31 -2846.58 12.00 5960350.86 650594.02 Start Dir 4/ I 8400.00 38.82 302.16 7181.02 7104.30 3081.76 1156.94 -2879.18 4.00 5960370.83 650561.01 MWD+IFR 8500.00 34.84 301.52 7261.05 7184.33 3139.18 1188.58 -2930.09 4.00 5960401.41 650509.47 MWD+IFR 8600.00 30.87 300.74 7345.03 7268.31 3191.33 1216.64 -2976.50 4.00 5960428.52 650462.50 MWD+IFR 8660.00 28.48 300.18 7397.16 7320.44 3219.98 1231.70 -3002.10 4.00 5960443.05 650436.60 End Dir 8695.90 28.48 300.18 7428.72 7352.00 3236.52 1240.31 -3016.90 0.00 5960451.35 650421.62 CM1 8700.00 28.48 300.18 7432.32 7355.60 3238.41 1241.29 -3018.59 0.00 5960452.30 650419.92 MWD+IFR 8800.00 28.48 300.18 7520.22 7443.50 3284.47 1265.26 -3059.82 0.00 5960475.42 650378.21 MWD+IFR 8900.00 28.48 300.18 7608.11 7531.39 3330.54 1289.23 -3101.04 0.00 5960498.55 650336.51 MWD+IFR 9000.00 28.48 300.18 7696.01 7619.29 3376.61 1313.21 -3142.27 0.00 5960521.67 650294.81 MWD+IFR 9100.00 28.48 300.18 7783.91 7707.19 3422.68 1337.18 -3183.49 0.00 5960544.80 650253.10 MWD+IFR 9200.00 28.48 300.18 7871.80 7795.08 3468.74 1361.15 -3224.72 0.00 5960567.92 650211.40 MWD+IFR 9300.00 28.48 300.18 7959.70 7882.98 3514.81 1385.12 -3265.94 0.00 5960591.04 650169.70 MWD+IFR 9369.42 28.48 300.18 8020.72 7944.00 3546.79 1401.76 -3294.56 0.00 5960607.10 650140.75 TJD 9400.00 28.48 300.18 8047.60 7970.88 3560.88 1409.09 -3307.17 0.00 5960614.17 650127.99 MWD+IFR 9462.71 28.48 300.18 8102.72 8026.00 3589.77 1424.13 -3333.02 0.00 5960628.67 650101.84 THRZ 9500.00 28.48 300.18 8135.49 8058.77 3606.94 1433.07 -3348.39 0.00 5960637.29 650086.29 MWD+IFR 9570.79 28.48 300.18 8197.72 8121.00 3639.56 1450.04 -3377.58 0.00 5960653.66 650056.77 TJC 9600.00 28.48 300.18 8223.39 8146.67 3653.01 1457.04 -3389.62 0.00 5960660.41 650044.59 MWD+IFR 9626.54 28.48 300.18 8246.72 8170.00 3665.24 1463.40 -3400.56 0.00 5960666.55 650033.52 BHRZ 9700.00 28.48 300.18 8311.29 8234.57 3699.08 1481.01 -3430.84 0.00 5960683.54 650002.89 MWD+IFR 9730.07 28.48 300.18 8337.72 8261.00 3712.93 1488.22 -3443.24 0.00 5960690.49 649990.35 TJB 9800.00 28.48 300.18 8399.18 8322.46 3745.14 1504.98 -3472.07 0.00 5960706.66 649961.18 MWD+IFR 9817.67 28.48 300.18 8414.72 8338.00 3753.29 1509.22 -3479.35 0.00 5960710.75 649953.81 TJA 9900.00 28.48 300.18 8487.08 8410.36 3791.21 1528.95 -3513.24 0.00 5960729.78 - 649919.48 MWD+IFR 9913.24 28.48 300.18 8498.72 8422.00 3797.31 1532.13 -3518-75 0.00 596073285 649913.96 7" -ent 7S ~S i • Sperry-Sun BP Planning Report (:ompany: BP Amoco Date: 6/8/2006 Time: 10:59:29 Page: 3 Field: Prudhoe $ay : Co-ordinate(NE) Reference: Well: D-26, True No rth Site: PB D Pad Vertical (1'VI) ) Reference: 34. 3 + 42.42 76.7 ~Ve11: D-26 Section (VS) Reference: Well (O.OON,O.OOE,285.19Azi) Wellputh: Pla n D-26B Survey Calculation Method: Minimum Curvature Db: Oracle Survey MD' Incl Azim ` "I'VD Sys TVD VS N/S EIW DLS NIapN MapE TooUCo ft deg deg ft ft ' ft ft ft deg/100ft ft ft 9940.00 28.48 300.18 8522.24 8445.52 3809.64 1538.54 -3529.78 0.00 5960739.03 649902.80 Start Dir 7/ 10000.00 32.68 300.18 8573.88 8497.16 3839.12 1553.89 -3556.17 7.00 5960753.83 649876.11 MWD+IFR 10043.33 35.72 300.18 8609.72 8533.00 3862.65 1566.13 -3577.22 7.00 5960765.64 649854.81 TSAD 10100.00 39.68 300.18 8654.55 8577.83 3896.11 1583.54 -3607.17 7.00 5960782.44 649824.52 MWD+IFR 10200.00 46.68 300.18 8727.42 8650.70 3962.18 1617.92 -3666.29 7.00 5960815.60 649764.71 MWD+IFR 10265.50 51.27 300.18 8770.40 8693.68 4009.90 1642.76 -3708.99 7.00 5960839.56 649721.51 End Dir : 1 i 10286.78 51.27 300.18 8783.72 8707.00 4025.94 1651.10 -3723.35 0.00 5960847.61 649706.99 TCGL 10300.00 51.27 300.18 8791.99 8715.27 4035.90 1656.28 -3732.26 0.00 5960852.61 649697.98 MWD+IFR 10400.00 51.27 300.18 8854.56 8777.84 4111.25 1695.50 -3799.69 0.00 5960890.43 649629.76 MWD+IFR 10422.63 51.27 300.18 8868.72 8792.00 4128.31 1704.37 -3814.96 0.00 5960899.00 649614.32 BCGL 10425.78 51.27 300.18 8870.69 8793.97 4130.68 1705.61 -3817.08 0.00 5960900.19 649612.18 Start Dir 11 10500.00 58.14 294.77 8913.57 8836.85 4189.82 1733.41 -3870.81 11.00 5960926.88 649557.89 MWD+IFR 10542.50 62.17 292.03 8934.72 8858.00 4226.30 1748.03 -3904.64 11.00 5960940.81 649523.77 23S6 10600.00 67.70 288.64 8959.08 8882.36 4278.14 1766.09 -3953.46 11.00 5960957.87 649474.60 MWD+IFR 10673.71 74.87 284.66 8982.72 8906.00 4347.87 1786.02 -4020.30 11.00 5960976.43 649407.37 22TS 10700.00 77.45 283.31 8989.01 8912.29 4373.39 1792.19 -4045.07 11.00 5960982.09 649382.48 MWD+IFR 10766.49 84.00 280.00 8999.72 8923.00 4438.84 1805.42 -4109.30 11.00 5960994.00 649318.00 D-266 T1 10800.00 84.29 276.31 9003.14 8926.42 4471.92 1810.14 -4142.29 11.00 5960998.05 649284.92 MWD+IFR 10900.00 85.28 265.31 9012.26 8935.54 4568.23 1811.53 -4241.71 11.00 5960997.41 649185.50 MWD+IFR 10900.44 85.29 265.26 9012.29 8935.57 4568.64 1811.50 -4242.15 11.00 5960997.37 649185.06 End Dir : 1 11000.00 85.29 265.26 9020.48 8943.76 4661.91 1803.29 -4341.03 0.00 5960987.14 649086.38 MWD+IFR 11027.30 85.29 265.26 9022.72 8946.00 4687.49 1801.04 -4368.14 0.00 5960984.34 649059.32 21TS 11075.97 85.29 265.26 9026.72 8950.00 4733.08 1797.03 -4416.48 0.00 5960979.34 649011.08 HOT 11096.37 85.29 265.26 9028.40 8951.68 4752.20 1795.35 -4436.74 0.00 5960977.25 648990.85 Start Dir 6/ I 11100.00 85.49 265.32 9028.69 8951.97 4755.60 1795.05 -4440.35 6.00 5960976.88 648987.25 MWD+IFR 11189.69 90.63 266.92 9031.72 8955.00 4840.29 1789.00 -4529.75 6.00 5960969.00 648898.00 D-266 T2 11198.27 91.14 267.02 9031.59 8954.87 4848.44 1788.54 -4538.32 6.00 5960968.37 648889.44 End Dir : 1 1 11200.00 91.14 267.02 9031.55 8954.83 4850.08 1788.45 -4540.05 0.00 5960968.25 648887.72 MWD+IFR 11300.00 91.14 267.02 9029.57 8952.85 4945.07 1783.25 -4639.89 0.00 5960961.00 648788.01 MWD+IFR 11400.00 91.14 267.02 9027.58 8950.86 5040.06 1778.04 -4739.73 0.00 5960953.76 648688.30 MWD+IFR 11500.00 91.14 267.02 9025.59 8948.87 5135.05 1772.84 -4839.58 0.00 5960946.52 648588.59 MWD+IFR 11600.00 91.14 267.02 9023.61 8946.89 5230.04 1767.63 -4939.42 0.00 5960939.28 648488.88 MWD+IFR 11700.00 91.14 267.02 9021.62 8944.90 5325.03 1762.43 -5039.27 0.00 5960932.04 648389.17 MWD+IFR 11766.73 91.14 267.02 9020.29 8943.57 5388.42 1758.96 -5105.90 0.00 5960927.20 648322.63 Start Dir 4/ i 11800.00 90.48 265.86 9019.82 8943.10 5419.92 1756.89 -5139.10 4.00 5960924.46 648289.48 MWD+IFR 11824.61 90.00 265.00 9019.72 8943.00 5443.08 1754.93 -5163.63 4.00 5960922.00 648265.00 D-26B T3 11900.00 90.56 262.04 9019.35 8942.63 5513.13 1746.42 -5238.53 4.00 5960911.96 648190.29 MWD+IFR 11960.90 91.01 259.64 9018.51 8941.79 5568.60 1736.73 -5298.64 4.00 5960901.05 648130.39 End Dir : 1 1 12000.00 91.01 259.64 9017.82 8941.10 5603.87 1729.70 -5337.10 0.00 5960893.23 648092.09 MWD+IFR 12100.00 91.01 259.64 9016.05 8939.33 5694.08 1711.72 -5435.45 0.00 5960873.26 647994.13 MWD+IFR 12200.00 91.01 259.64 9014.28 8937.56 5784.28 1693.75 -5533.81 0.00 5960853.28 647896.17 MWD+IFR 12300.00 91.01 259.64 9012.51 8935.79 5874.49 1675.77 -5632.16 0.00 5960833.30 647798.21 MWD+IFR 12400.00 91.01 259.64 9010.74 8934.02 5964.69 1657.80 -5730.52 0.00 5960813.32 647700.25 MWD+IFR 12500.00 91.01 259.64 9008.97 8932.25 6054.90 1639.82 -5828.87 0.00 5960793.35 647602.29 MWD+IFR 12600.00 91.01 259.64 9007.20 8930.48 6145.10 1621.85 -5927.23 0.00 5960773.37 647504.33 MWD+IFR 12626.00 91.01 259.64 9006.74 8930.02 6168.56 1617.18 -5952.80 0.00 5960768.17 647478.86 41/2" 12626.88 91.01 259.64 9006.72 8930.00 6169.35 1617.02 -5953.67 0.00 5960768.00 647478.00 D-26B T4 lent TREE = 4" CNV I4-1/2" KILL STRING, 12.6#, L-80, ID = 3.958" 13-3/8" CSG, 72#, L-80, ID = 12.347" Minimum ID = 2.37" @ 10157' TOP OF 2-7/8" LINER TOP OF 7" LNR ~ 9867' 9-5/8" CSG, 47#, L-80, ID = 8.681" 10136' TOP OF 2-7/8" LNR 10157' 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" i PERFORATION SUMMARY REF LOG: SPERRY SUN GR/ROP 06/03/97 ANGLE AT TOP PERF: 101 @ 11150' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 1-2/3" 4 11150 - 11285 O 06/16/97 1-2/3" 4 11950 - 12080 O 06/16/97 1-2/3" 4 12340 - 12390 O 06/16/97 4" 4 10730 - 10750 S 1997 CEMENTED WHIPSTOCK ~~ 10765' ~' PBTD 11026' PBTD 12415' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 11068' 2-7/8" LNR, 6.16#, L-80, .0058 bpf, ID = 2.37" DATE REV BY COMMENTS DATE REV BY COMMENTS 02/12/86 ORIGINAL COMPLETION 04/07/89 DFF RWO 06/17/97 WHITLO SIDETRACKCOMPLETION 06/01/05 JDM/TLH RWO SUSPENDm 03/05/02 RN/TP CORRECTIONS 04/26/05 NBF/TLH CHEM CUT (04/08/05) I 12482' I PRUDHOE BAY UNIT WELL: D-26A PERMfr No: 1970870 API No: 50-029-21530-01 SEC 23, T11 N, R13E BP F~cploration (Alaska) S OTES: TWO RIGATTEMPTS @ RWO D ~2 6A WERE SUSPENDED WITH FALL STRING LEFT IN WELL 6/2005 2533' -14-1/2" OTIS SSSV NIP, ID = 3.813" 2544' 4-1/2" WLEG, ID = 3.958" i 2544' } 2707' 3000' i-i 9-5/8" HALCO EZ-SV (06/0 9830' 9-5/8" HALCO EZ-SV (05!31/05) 10066' ~TOPOF4-1/2"DRESSED STUMP(D16RK6) 10128' BKR IBP FISH (06/01/05). SOME JUNK REMAINING ON TOP OF R (D16 RKB) 10157' DEPLOYMENT SLEEVE 10676' 4-1/2" OTIS XA SLIDING SLV, ID = 3.813" 10701'-10738' BLAST JOINTS 10739' BKR K-22 ANCHOR 10741' 7" X 4-1/2" BKR PKR, ID = 4.00" 146' 1 4-1/2" OTIS XN NIP, ID = 3.725" 10~ 749' I- ~ 4-1 /2" BKR TBG TAIL, ID = 4.00" 10765' ELMD TT LOGGED 02/09/86 MILLOUT WINDOW 10808' - 10816' TREE = 4" CNV WELLHEAD = FMC ACTUATOR = AXELSON KB. ELEV = 72.T BF. ELEV = 42.42' KOP = 3400' Max Angle = 104 @ 11031' Datum MD = 10667' Datum TV D = 8800' SS ~ i D-26B Planned % /4-1/2" X-Nipple (3.813" ID) - 2200' MD 13-3/8" Shoe - 2707` MD / 4-1/2" x 1-1/2" MMG GAS LIFT MANDRELS 4-1/2", 12.6#, 13Cr, Vam-Top Tubing - 9766` MD TOW - 8320' MD- Top of 7" Liner - 7907' MD X-Nipples (3.813" ID) - 9724` & 9678" MD BOT S-3 Packer - 9699` MD XN-Nipple w.HRC Plug - 9745' MD BOT 4-1/2" Liner Top 6' TBS - 9765' MD 7", 26#, L-80, BTC-M, Liner - 9913' MD- J 4-1/2" WLEG - 9766" MD Planned Perf's (4-1/2" , Liner) at xxxx' MD \ ' ST MD TVD DEV TYPE VLV LATCH PORT 4 Schlum SV 3 Schlum DMY 2 Schlum DMY 1 Schlum DMY BOT 7" Liner Top (6` TBS) - 8165' MD BOT 9-5/8" Whipstock (TOW -~0' MD) ~-5/8" HES EZSV - 8340' MD TOC - -9580` MD (-250' Cement) 9-5/8" HES EZSV - 9830' MD TOP OF 7" LNR 986T 9-5/8" CSG, 47#, L-80, ID = 8.681" 10136' 10066' TOP OF 4-1/2" DRESSED STUMP (D16 RK 10128' BKR IBP FISH (06/01 /05). SOME JUNK REMAINING ON TOP OF R (D16 RKB) 10157' DEPLOYMENT SLEEVE 10676' 4-1/2" OTIS XA SLIDING SLV, ID = 3.813" TOP OF 2-7/8" LNR 10157' 4-1/2", 11.6#, L-80, IBT-M Liner 12,626' MD Minimum ID = 3.725" @9745' M In 4" Tubing Tail ~ 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" I~ 107 PERFORATION SUMMARY REF LOG: SPERRY SUN GR/ROP 06/03!97 ANGLE AT TOP PERF: 101 @ 11150' Note : Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 1-2/3" 4 11150 - 11285 Aban D-26B ST 1-2/3" 4 11950 - 12080 Aban D-266 ST 1-2/3" 4 12340 - 12390 Aban D-26B ST 4" 4 10730 - 10750 S 1997 2-7/8" 6 planned perfs Open Perf Date CEMENTED WHIPSTOCK ~ 10765' PBTD 11026' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" I~ 11068' { 10701'-10738' I-1 BLAST JOINTS I 10739' BKR K-22 ANCHOR 10741' 7" X 4-1/2" BKR PKR, ID = 4.00" 10746' I~4-1/2" OTIS XN NIP, ID = 3.725" 10749' ~ 4-1 /2" BKR TBG TAIL, ID = 4.00" 10765' ELMD TT LOGGED 02/09/86 MILLOUT WINDOW 10808' - 10816' - Abandon Perfs - 11,150` -12,390' MD PBTD I~ 12415' 2-7/8" LNR, 6.16#, L-80, .0058 bpf, ID = 2.37" I~ 12482' DATE REV BY COMMENTS DATE REV BY COMMENTS 02/12/86 ORIGINAL COMPLETION 04/07/89 DFF RWO 06/17/97 WHITED SIDETRACKCOMPLETION 06/01/05 JDM/TLH RWO SUSPENDm 03!05/02 RN/TP CORRECTIONS 04/26/05 NBF/TLH CHEM CUT (04/08/05) PRUDHOE BAY UNIT WELL: D-26A PERMIT No: °1970870 API No: 50-029-21530-01 SEC 23, T11 N, R13E BP Exploration (Alaska) • Terri Hubble BP Exploration AK Inc. PO Box 19667 2 MB 7-5 Anchorage, AK 9951.9, PAY TO THE ORDER OF "Mastercard Check" as-sn z5z 283 DATE ~~!' '„`'' '~ s c0~ .` -.:~ ~ ~~ s First Natwnal Bank Alaska Anchorage, AK 99501 nn nn.nn MEMO ~~ U~Il~1C_- ~: l 2 5 200060:99 L46 2 2 7 1 5 56~~' 0 28 3 • • TRANSMITTAL LETTER CHECKLIST WELL NAME ~'~~i( D Z~' `~ Development Service Exploratory Stratigraphic Test Non-Conventional Well Circle Appropriate Letter /Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS TEXT FOR APPROVAL LETTER I WHAT (OPTIONS) ~ APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing we I1 (If Last two digits in permit No. API No. 50- - - API number are , between 60-69) Production should continue to be reported as a function of the ~ original API number stated above. ~ PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( 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 /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. Please note the following special condition of this permit: Non-Conventional production or production testing of coal bed methane is not allowed Well 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 rogram. Rev: 1 /25/06 C:\jody\transmittal_checkl ist `~f~L~. ;'~;tr~w; ~, ,~:.KL~ST ?=iek+ & Pocl PRUDHOE BAY PRUDHOE O!L-640150 Vvcli Nana. PRUDHOE BAY UNIT D-26B ---program DEV_ Weil bore seg PTD#2G ,~'i ~ -,w 3PEXPLOR,?,TION ~'~?KA)iNC I -,a~~i ~.~~" --- - „ae _ _REV/1-OIL Ceo~.ra? 85u__ Unit i955Q OnlOffBhore (in AnnularDisposai - ___ Adrninistration 1 - ,~ Permit fee attached Yes , ,,, -....n,~.--_~- - -° - 2 lease number appropriate Yes '? Unique well name and number Yes 4 ?^leil t~cated in_a defined pool Yes _ VUeI! located proper distance from drilling unit. boundary.. `. es 6 1N21i iocated proper distancefrom other wells Yes '7 Sutiicient acreage_available in drilling. unit... Yes 8 If deviated, is wellbore plat included Yes 9 Operator only affected party.. Yes 10 Operator has appropria9e_bond in force Yes 11 Permit can be issued without conservation order Yes 12 Pe[mit_can be issued without administrative approval Yes Appr Date 13 Can permit be approved before 15-day wait Yes RPC 61301200E 14 Well located within area and strata authorized by Injection Order # (put IO# in comments) (For NA _ 15 All wells within 114 mile area of review identified (For service well only) NA 16 Pre-produced injector: duration ofpre-production less than- 3 months. (For service well only) NA_ 17 Nonconven, ga_s conforms to AS31,05A30(j.1.A),Q2.A-D) No_ 18 Conductor string provided NA_ __ Engineering 19 Surface casing protects all known l1SDWs NA 20 CMT vol. adequate to circulate on conductor & surf csg NA_ _ 21 CMT vot adequate_totie-in long string t_o surf csg NA_ 22 CMT will cover all known productive horizons Yes Adequate excess. 23 Casing designs adequate for C, T, B & permafrost- Yes I24 Adequate tankage or reserve pit Yes Doyon 14. 25 If a_re-drill., has a 10-403 for abandonment been approved Yes 6!1912006, 26 Adequate wellbore separation proposed Yes . ',27 If diverter required, does it meet regulations. NA _ _ _ _ ..Sidetrack. 28 .Drilling fluid_program schematic & equip list adequate Yes . ......Max MW 10.4 ppg. Appr Date I29 BOPEs, do they meet regulation _ Yes . WGA 6(3012005 30 BOPE.press rating appropriate; test to (put prig in comments). _ Yes Test to 3500. psi. MSP 2881 psi. ',39 Choke_manifoldcomp_IieswlAPiRP-53 (May84)_ _ _ _ _ _ _ _ _ _ Yes- _ _ _ _ ',32 Work will occur without operation shutdown _ _ Yes 1,33 I& presence of H2$ gas probable. No_ Not an H2$ pad........ x'34 Mechanical condition of wells within AOR verified (Forservice well only) _ NA _ 35 Permit. can be issued w/o hydrogen sulfide measures No __ ____. Geology `36 Data. presented on_ potential overpressure zones _ _ _ NA X37 Seismic analysis. of shallow gas zones- NA_ Appr Date F38 .Seabed condition survey_(ifoff-shore) _ NA. . RPC 6130!2006 x!,39 Contact namelphone far weekly_progress reports-[exploratory only] _ NA_ _ _ _ _ _ _ Geologic Engineering Date: Date Date Commissioner: Co issioner: Co m' s r •