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210-025
7. 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 this 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 R-26B Convert to Injector Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 210-025 50-029-21547-01-00 341J ADL 0028279 12300 Surface Intermediate Liner Liner Slotted Liner 8881 2479 9068 391 2228 2203 7833 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" 2-3/8" 7527 34 - 2513 33 - 9101 8824 - 9215 7817 - 10045 10097 - 12300 1600 34 - 2513 33 - 8733 8460 - 8846 7512 - 8862 8856 - 8881 None 2670 4760 7020 10530 7833 4930 6870 8160 10160 10106 - 12180 4-1/2" 12.6# L80 31 - 79198855 - 8879 Conductor 80 20" 35 - 115 35 - 115 7" TIW HBBP Packer No SSSV Installed 7796, 7492 Date: Torin Roschinger Operations Manager Aras Worthington aras.worthington@hilcorp.com 907-564-4763 PRUDHOE BAY 9/6/2024 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 By Grace Christianson at 9:55 am, Aug 23, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.08.23 05:02:33 - 08'00' Torin Roschinger (4662) 10-404 SFD 8/27/2024 DSR-8/26/24 , ADL 0028278 SFD MGR13SEP24 (to identify conversion to injector) *&: Jessie L. Chmielowski Digitally signed by Jessie L. Chmielowski Date: 2024.09.16 12:29:02 -07'00'09/16/24 RBDMS JSB 091724 Convert to Injector PBU R-26B PTD:210-025/210-024 Well Name:PBU R-26B API Number:50-029-21547-01 Current Status:Operable Sag Producer Rig:N/A Estimated Start Date:9/6/2024 Estimated Duration:N/A Reg.Approval Req’std?10-403 Date Reg. Approval Rec’vd: Regulatory Contact:Abbie Barker First Call Engineer:Aras Worthington Contact:907-440-7692 Current Bottom Hole Pressure:2,192 psi @ 8,800’ TVD (SBHPS of 4/4/2024) Max. Anticipated Surface Pressure:1,600 psi (Based on last SIWHP) Last SI WHP:1,600 psi (4/4/2024) Min ID:1.92” @ 9,958’ MD (CTD Liner Deployment Sleeve) Max Angle:106 Deg @ 9,671’ MD Brief Well Summary: R-26B is a Sag producer CTD sidetrack drilled in 2010. A SBHPS performed in April of 2024 indicated a very low BHP (2192 psi @ 8800’ TVD). Objective: Convert the well to a WAG Sag injector to support surrounding Sag producers. Integrity Screening: o MIT-IA passed to 3,242 psi on 4/28/24 o MIT-T passed to 3,349 psi on 5/14/24 w /plug set in X-nipple @ 7,721’ MD (in Sliding Sleeve) o MIT-T passed to 3,104 psi on 7/5/24 w/ plug set in X-nipple @ 7,833’ MD (in CT Liner top below production packer) o Gas-tight tubing test w/ 2800 psi MI 5/23/24 – 5/29/24 passed w/ plug set in X-nipple @7,721’ MD (in Sliding Sleeve) o Gas-tight tubing test w/ 3000 psi MI 6/22/24 – 6/24/24 w/ plug set in X-nipple @ 7,833’ MD (in CT Liner top below production packer); IAP increased 500 psi in two days Cement Isolation Original completion: o 7” liner cemented w/ 400 sacks Class G w/ 5% KCL o RIH w/ 8-1/2” bit and clean out cement from 8406’ to top of 7” liner @ 8817’ MD (this indicates cement returns achieved over the to of the 7” liner) o RIH w/ 6” bit and clean out top of 7” liner. Clean out cement from 9477’ to 9557’ MD CTD completion: o Cemented 3-3/16” Liner w/ 35 bbls cement w/ full returns throughout the job o Performed CBL on 3-3/16” Liner on 7/5/24: Good cement bond from ~8640’ MD to bottom of logged interval ~9300’ MD. Base of Kingak is ~9180’ MD. Therefore we believe we have zonal isolation in the 3-3/16” x 7” annulus and the 7” x OH annulus also has evidence of cement across the Kingak since cement was cleaned out off the top of the 7” liner after the primary cement job. Convert to Injector PBU R-26B PTD:210-025/210-024 Area Of Review: Convert to Injector PBU R-26B PTD:210-025/210-024 Ok. SFDOk. SFD In 2001, AOGCC concurred that isolation is adequate from 9,000 to 9,227' MD in R-01A. SFD Ok. SFD Ok. SFD Ok. SFDOk. SFDOk. SFD Convert to Injector PBU R-26B PTD:210-025/210-024 Attachments: 1. Current Wellbore Schematic 2. CBL Snapshot of 3-3/16” Liner 3. Sundry Change Form Convert to Injector PBU R-26B PTD:210-025/210-024 Current Wellbore Schematic Convert to Injector PBU R-26B PTD:210-025/210-024 Convert to Injector PBU R-26B PTD:210-025/210-024 Hilcorp North Slope, LLCHilcorp North Slope, LLCChanges to Approved Work Over Sundry ProcedureDate: August 22, 2024Subject: Changes to Approved Sundry Procedure for Well R-26B/BL1Sundry #:Any modifications to an approved sundry will be documented and approved below. Changes to an approved sundry will be communicated to theAOGCC by the workover (WO) “first call” engineer. AOGCC written approval of the change is required before implementing the change.StepPageDate Procedure ChangeHNSPreparedBy (Initials)HNSApprovedBy (Initials)AOGCC WrittenApproval Received(Person and Date)Approval:Asset Team Operations Manager DatePrepared:First Call Operations Engineer Date 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: 8/7/2024 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20240807 Well API #PTD #Log Date Log Company Log Type AOGCC Eset# END 2-72 50029237810000 224016 6/27/2024 HALLIBURTON COILFLAG END 2-72 50029237810000 224016 7/18/2024 HALLIBURTON RBT END 2-72 50029237810000 224016 7/18/2024 HALLIBURTON TEMP END 2-74 50029237850000 224024 7/20/2024 HALLIBURTON MFC MPU B-24 50029226420000 196009 7/16/2024 HALLIBURTON MFC MPU E-19A 50029227460100 224010 6/22/2024 HALLIBURTON COILFLAG NS-10 50029229850000 200182 7/18/2024 HALLIBURTON MFC NS-10 50029229850000 200182 7/18/2024 HALLIBURTON TEMP NS-32 50029231790000 203158 7/16/2024 HALLIBURTON MFC NS-32 50029231790000 203158 7/15/2024 HALLIBURTON TEMP PBU H-13A 50029205590100 209044 7/23/2024 HALLIBURTON RBT PBU L-246 50029237650000 223078 7/23/2024 HALLIBURTON IPROF PBU R-26B 50029215470100 210025 7/5/2024 HALLIBURTON RBT PBU R-36 50029225220000 194144 6/21/2024 HALLIBURTON RBT PBU V-216 50029232160000 204130 7/11/2024 HALLIBURTON IPROF PBU V-217 50029233340000 206162 7/11/2024 HALLIBURTON IPROF Please include current contact information if different from above. T39365 T39365 T39365 T39366 T39367 T39368 T39369 T39369 T39370 T39370 T39371 T39372 T39373 T39374 T39375 T39376 PBU R-26B 50029215470100 210025 7/5/2024 HALLIBURTON RBT Gavin Gluyas Digitally signed by Gavin Gluyas Date: 2024.08.07 13:19:30 -08'00' • • Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. 'Q.1 0 - LQ Well History File Identifier Organizing (done) ❑ Two -sided II 1111111 III ❑ Rescan Needed 1 IIIII 11111 7 R ES N DIGITAL DATA OVERSIZED (Scannable) olor Items: ❑Diskettes, No. ❑ Maps: Greyscale Items: Other, No/Type: a NO. ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non - Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Maria f Date: (91 I 4.. /s/ 01P Project Proofing 1 1111111 11111 BY: Maria Date: 1/6 1, /s / Scanning Preparation x 30 = ‘00 + oG c = TOTAL PAGES g (Count does not include cover sheet) BY: Date: 1 /s/ im, Production Scanning 111111111 I Stage 1 Page Count from Scanned File: U 7 (Count does include cover heet) Page Count Matches Number in Sca ning Preparation: VY s ES NO BY: OD Date:' i 9_ /s f o Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. I I ReScanned I I 11111 BY: Maria Date: /s/ Comments about this file: Quality Checked III IItIIIIIII'I III 12/22/2011 Well History File Cover Page.doc DATA SUBMITTAL COMPLIANCE REPORT 10/24/2011 Permit to Drill 2100250 Well Name /No. PRUDHOE BAY UNIT R -26B Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 21547 -01 -00 MD 12300 TVD 8881 Completion Date 5/7/2010 Completion Status 1 -OIL Current Status 1 -OIL UIC N REQUIRED INFORMATION r Mud Log No Samples No Directional Surve Yes DATA INFORMATION Types Electric or Other Logs Run: MWD DIR, GR, RES, GR / CCL / CNL (data taken from Logs Portion of Master Well Data Maint Well Log Information: • Log/ Electr Data Digital Dataset Log Log Run Interval OH / Type Med /Frmt Number Name Scale Media No Start Stop CH Received Comments re- ! ED C Las 19964 "Induction /Resistivity 8951 12299 Open 8/5/2010 ROP, GR, EWR /Rpt LIS Verification 8951 12299 Open 8/11/2010 LIS Veri, GR, ROP, RAD, RAS, RPD, RPS ED C Lis 19990 gnduction /Resistivity 8951 12299 Open 8/11/2010 OH LIS, GR, ROP, RAD, RAS, RPD, RPS plus CGM & PDF Graphics kog Induction /Resistivity 25 Col 9210 12300 Open 8/11/2010 MD MPR, GR Log Induction /Resistivity 5 Col 9210 12300 Open 8/11/2010 TVD MPR, GR Log Gamma Ray 25 Col 9210 12300 Open 8/11/2010 MD GR Log / Gamma Ray 5 Col 8940 12310 Open 8/11/2010 Depth Shift Monitor Plot j A C Directional Survey 9200 12300 Open pt Directional Survey 9200 12300 Open • Well Cores /Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments ADDITIONAL INFORMATION Well Cored? Y /t) Daily History Received? i/ N Chips Received? 44.a... W.. Formation Tops Cy' Analysis Y-t'IC Received? Comments: DATA SUBMITTAL COMPLIANCE REPORT 1 10/24/2011 Permit to Drill 2100250 Well Name /No. PRUDHOE BAY UNIT R -26B Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 21547 -01 -00 MD 12300 TVD 8881 Completion Date 5/7/2010 Completion Status 1 -OIL Current Status 1 -OIL UIC N I Compliance Reviewed By: __ Date: ,A 4 6 „ _ III a III • • INTEQ Log & Data Transmittal Form To: State of Alaska -AOGCC 333 W. 7 Ave. Suite 100 Anchorage, Alaska 99501 Attention: Christine Mahnken : fij -474.4 ° 473 1 Reference: R -26B Contains the following: 1 LDWG Compact Disc (Includes Graphic Image files) 1 LDWG lister summary 1 color print — GR Directional Measured Depth Log (to follow) 1 color print — MPR/Directional TVD Log (to follow) 1 color print — MPR/Directional Measured Depth Log (to follow) 1 9 I LAC Job #: 3134598 IF Sent by Holly Vann Date: 08/ 0 I I -- / V Received by: Date: Alaska On 31 Gas Com Cornmeal i PLEASE ACKNOWLEDGE RECEIPT BY SIGN �r'' TURNING OR FAXING YOUR COPY FAX: (907) 267 -6623 ,/ Baker Hughes INTEQ Tan 7260 Homer Drive BAKER Anchorage, Alaska 99518 � HUG Direct: (907) 2 67 -6612 iO /)v, INTEQ • FAX: (907) 267 -6623 • • ra ISAICEIR HUGHES Baker- Atlas PRINT DISTRIBUTION LIST COMPANY BP EXPLORA I ION (ALASKA) INC COUN 1 Y NORTH SLOPE BOROUGH WELL NAME R-26B STATE ALASKA FIELD PRUDHOE BAY UNIT DATE 8/10/2010 THIS DISTRIBUTION LIST AUTHORIZED BY: HOLLY VANN SO #: 3134598 Copes of Copies Digital Copies of Comes Digital Each Log of Film Data Each Log of Film Data 2 Company BP EXPLORATION (ALASKA) INC 1 Company DNR - DIVISION OF OIL & GAS Person PETROTECHNICAL DATA CENTER Person CORAZON MANAOIS Address LR2-1 Address 550 WEST 7TH AVE 900 E BENSON BLVD. SUITE 800 ANCHORAGE, AK 99508 ANCHORAGE, AK 99501 1 Company EXXON MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082A • • HOUSTON, TX 77002 1 Company STATE OF ALASKA - AOGCC Company Person CHRISTINE MAHNKEN Person • Address 333 W. 7TH AVE Address SUITE 100 ANCHORAGE, AK 99501 Company Company • Person Person Address Address • Company Company Person Person Address Address Data Disseminated By: BAKER ATLAS-PDC 17015 Aldine Westfield, Houston. Texas 77073 This Distribution List Completed By: 5 ' 619. 1 • • Page 1 of 1 • • bp Date 08 -06 -2010 0 Transmittal Number:93154 BPXA WELL DATA TRANSMITTAL Enclosed are the materials listed below. (BPXA FIELD LOG DATA) If you have any questions, please contact Doug Dortch at the PDC at 564 -4973 Delivery Contents 1 CD -ROM Containing Field Log Data & Electronic Log Prints for the following wells: 02 -34B 010 -009 194/3 R -26B and -0 95 /99 &(/ R -26BL1 Q!0 -090 /9965 I I l- Please Sig and turn one copy of this transmittal. RECEIVED Thank You, Doug Dortch Petrotechnical Data Center �, � l�w ilIli i *OM 9 C at Attn: State of Alaska - AOGCC , t. Attn: Christine Shortzer — 6tL ie4-a'" 4 -P.3 l'V 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 J/ !Week -Vet1: u.) 5MM2.Tz � 2 Petrotechnical Data Center LR2 -1 900 E. Benson Blvd. PO Box 196612 Anchorage, AK 99519 -6612 • Page 1 of 1 Maunder, Thomas E (DOA) From: Hubble, Terrie L [Terrie.Hubble @bp.com] Sent: Wednesday, July 07, 2010 11:23 AM To: Maunder, Thomas E (DOA) Cc: Eddy, Andrea (SAIC) Subject: RE: R -26BL1 (210 -024) Attachments: R -26B and R -26BL1 Last Day.pdf Hi Tom, You found a "hole ". It took a little time to resolve this issue as those hours showed up on the Daily Report, but not on the Operations Summary_ Very odd.-_ Anyway, here is attachment that will replace the last days work by the rig for this Multilateral Well. VP" Thanks for the `Eagle Eyes`! SJ S Terrie From: Maunder, Thomas E (DOA) [mailto:tom.maunder @alaska.gov] Sent Friday, July 02, 2010 12:11 PM To: Hubble, Terrie L Subject: R -26BL1 (210 -024) Terrie, I am helping Guy and am reviewing the 407 submitted for this well. On the final day of operations (5/7/10), the operations from midnight to 0730 are missing. Could you send a revised sheet(s) with that information? Thanks much, Tom Maunder, PE AOGCC 7/9/2010 I `� I • STATE OF ALASKA I RECEIVED ED . , ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT ANd .b 7 2010 1 a. Well Status: Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned ❑ Suspended . ; ;+ ; OP&'GU Cams. Connission 2CAAC 25.105 20AAC 25.110 � � •evelop»1errlt ❑ GINJ ❑ WINJ ❑ WAG ❑ WDSPL ❑ Other No. of Completions One ❑ Service n Stratigraphic 2. Operator Name: 5. Date Comp., Susp., or Aband.: 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 5/7/2010 210 - 025 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612, Anchorage, Alaska 99519 - 6612 4/24/2010 50 029 - 21547 - 01 - 00 4a. Location of Well (Governmental Section): 7. Date T.D. Reached: 14. Well Name and Number: Surface: 5/3/2010 PBU R -26B 226' FSL, 2313' FEL, SEC. 32, T12N, R13E, UM 8. KB (ft above MSL): 72 15. Field / Pool (s ): Top of Productive Horizon: 2241' FSL, 1469' FEL, SEC. 32, T12N, R13E, UM GL (ft above MSL): 37.9' Prudhoe Bay Field / Prudhoe Bay Total Depth: 9. Plug Back Depth (MD +TVD): Oil Pool 2435' FSL, 759' FWL, SEC. 33, T12N, R13E, UM 12299' 8881' 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD +TVD): 16. Property Designation: Surface: x- 636626 y - 5976731 Zone- ASP4 12300' 8881' ADL 028279 & 028278 TPI: x- 637428 y- 5978761 Zone- ASP4 11. SSSV Depth (MD +TVD): 17. Land Use Permit: Total Depth: x- 639651 y- 5978996 Zone- ASP4 None 18. Directional Survey: El Yes ❑ No 19. Water depth, if offshore: 20. Thickness of Permafrost (TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900' (Approx.) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re- Drill/Lateral Top Window MD/TVD: MWD DIR, GR, RES, GR / CCL / CNL 10093 8856' 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. GRADE To BOTTOM To I BOTTOM SIZE CEMENTING RECORD PULLED 2 -3/8" 4.4# L -80 10097' 12300' 8856' . 8881' 3" Uncemented Slotted Liner 24. Open to production or injection? ® Yes ❑ No 25. TUBING RECORD If Yes, list each interval open SIZE DEPTH SET (MD) PACKER SET (MD / TVD) (MD +TVD of Top & Bottom; Perforation Size and Number): 2 -3/8" Slotted Section Note: 4 - 1/2 ", 12.6#, L - 80 7919' 7796' / 7492' MD TVD MD TVD 10106' - 10803' 8855' - 8846' Well Branch Well Branch 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 11008' - 12180' 8854' - 8879' R -26B R -26B Departs From Is not Directly DEPTH INTERVAL (MD)I AMOUNT AND KIND OF MATERIAL USED Well Branch Accessible 2500' Freeze Protected w/ 38 Bbls of 60/40 McOH R 26BL1, PTD # 210 -024 at 10093' MD (8856' TVD) 27. PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): Reported on R -26BL1 See R -26BL1 10-407 (Dated 05/27/10, PTD # 210 - 024) for Production & Test Data Date of Test: Hours Tested: Production For OIL -BBL: GAS -MCF: WATER -BBL: CHOKE SIZE: GAS -OIL RATIO: Test Period Flow Tubing Casing Press: Calculated OIL -BBL: GAS -MCF: WATER -BBL: OIL GRAVITY -API (CORR): Press. 24 -Hour Rate 28. CORE DATA Conventional Core(s) Acquired? ❑ Yes IS No Sidewall Core(s) Acquired? ❑ 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 alitigh. -. r" cki ' 1 None .• ., ai . Form 10-407 Revised 12/ I • C O NTINUED ON REVERSE Only DMS MAY 2 8 Z010 � Submit Original O 29. GE9LOGIC MARKERS (List all formations an•rkers encountered): 30. • FORMATION TESTS NAME MD TVD Well Tested? ❑ Yes ® No Permafrost Top If yes, list intervals and formations tested, briefly summarizing test Permafrost Base results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Shublik 9221' 8852' None Shublik B 9272' 8901' Sadlerochit 9312' 8934' Sadlerochit 9721' 8937' Shublik B 9806' 8915' Shublik / Base of Sag River 10003' 8870' Formation at Total Depth (Name): Sag River (from Base) 10003' 8870' 31. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 32. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. /7f Signed: Terrie Hubble " lYI YkQ ii,49 't Title: Drilling Technologist Date: PBU R -26B 210 -025 Prepared By Name/Number. Term Hubble, 564 -4628 Well Number Permit No. / Approval No. Drilling Engineer: Wilmer Hoffman, 564 -4592 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection, Water Injection, Water - Alternating -Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI (Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50- 029 - 20123 -00 -00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut -In, or Other (explain). Item 28: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 12/2009 Submit Original Only • BP EXPLORATION Page 1 of 1 Operations Summary Report Legal Well Name: R -26A Common Well Name: R -26A Spud Date: 1/20/1986 Event Name: MOBILIZATION Start: 4/18/2010 End: 4/19/2010 Contractor Name: Rig Release: Rig Name: Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/20/2010 06:00 - 08:30 2.50 MOB P PRE COMPLETE RIG MOVE FROM J PAD TO R PAD. FINISH PREP AROUND WELL HEAD. SPOT RIG OVER WELL. LEVEL SAME. ACCEPT RIG AT 0830 FIRS ON 4- 20 -10, 08:30 - 14:30 6.00 MOB P PRE BEGIN RIG UP OF RIG AND SUPPORT EQUIPMENT. CONTINUE TO MOVE MISC EQUIPMENT FROM J PAD. NU TREE CAP. NU BOPS. SECURE BOPS IN CELLAR. 14:30 - 23:15 8.75 BOPSUF P PRE PRESSURE TEST BOP EQUIPMENT. TEST WITNESS WAIVED BY AOGCC INSPECTOR L. GRIMALDI. PERFORM TEST AS PER APPROVED WELL PLAN, AOGCC REGULATIONS, BP DWOP GUIDELINES, AND PERMIT TO DRILL. ALL TESTS RECORDED BY SLB AND NORDIC DATA RECORDING SYSTEMS. CONTINUE TO ORGANIZE LOCATION. SPOT MISC EQUIPMENT. 23:15 - 23:30 0.25 BOPSUF P PRE PJSM FOR PU BPV LUBRICATOR. 23:30 - 00:00 0.50 BOPSUF P PRE BEGIN RU BPV LUBRICATOR. IAP = 10 PSI OAP = 10 PSI CONTINUED ON WSR 04/21/10 Printed: 5/24/2010 1:29:28 PM • BP EXPLORATION Page 1 of 2 Operations Summary Report Legal Well Name: R -26A Common Well Name: R -26A Spud Date: 1/20/1986 Event Name: RE ENTER Start: 4/19/2010 End: 4/26/2010 Contractor Name: NORDIC CALISTA Rig Release: Rig Name: NORDIC 2 Rig Number: N2 Date From - To Hours Task Code NPT Phase Description of Operations 4/21/2010 00:00 - 01:10 1.17 BOPSUF P WEXIT CONTINUED FROM DIMS REPORT 04/20/2010 IN THE MOBILIZATION EVENT IAP = 10 PSI OAP = 10 PSI PULL BPV. 130 PSI BELOW BPV. BLEED OFF LUBRICATOR (ALL GAS). LD BPV LUBRICATOR ASSEMBLY. 01:10 - 01:40 0.50 BOPSUF P WEXIT PJSM FOR PRESSURE TESTING INNER REEL VALVE. 01 :40 - 03:00 1.33 BOPSUF P WEXIT PRESSURE TEST INNER REEL VALVE. GOOD. 03:00 - 06:15 3.25 KILL P WEXIT MU AND RIH W/ NOZZLE ASSEMBLY TO CIRCULATE DIESEL/GAS FROM WELLBORE. FIND 70 PSI ON WELLBORE WHEN OPEN UP TO RIH. OPEN TO TT, PRESSURE FALLS AWAY IN FEW MINUTES. RIH W/ OPEN CHOKE. NO LIQUID RETURNS AS RIH. ATTEMPT TO CIRCULATE FROM 6000' MD, UNABLE TO ESTABLISH RETURNS AT SURFACE. POOH PUMPING AT MINIMUM RATE (0.4 BPM AT 30 PSI). 06:15 - 09:00 2.75 KILL P WEXIT LAY DOWN NOZZLE BHA. MU LEFT HAND MILLING & CLEAN OUT BHA. STAB COIL. GET ON WELL. 09:00 - 10:30 1.50 CLEAN P WEXIT RUN IN HOLE. CIRC AT MIN RATE, 0.5 BPM AT 350 PSI. NO RESTRICTION FOUND FROM 7300' TO 7600'. 10:30 - 11:00 0.50 CLEAN P WEXIT TAG XN NIPPLE AT 7881', PU. CIRC AT 2.64 BPM AT 1880 PSI. MILL NIPPLE EASILY. 11:00 - 11:30 0.50 CLEAN P WEXIT CLEAN OUT TO 9250'. 11:30 - 12:00 0.50 CLEAN P WEXIT REAM OUT OF HOLE. OVERPULL AND STOP AT 8920'. RIH. BACK REAM UP. NO ADDITIONAL OVERPULLS NOTED. 12:00 - 14:00 2.00 CLEAN P WEXIT CONTINUE TO PULL OUT OF HOLE. 0.52 BPM AT 10 PSI. WELL CONTINUES TO TAKE FLUID WITH NO RETURNS NOTED. 14:00 - 15:30 1.50 CLEAN P WEXIT AT SURFACE. GET OFF WELL. UNSTAB COIL. LD MILLING BHA TOOLS. MILL GAUGED AT 3.80" GO / 3.79" NO -GO. MU DUMMY WHIPSTOCK ON JARS, PH 6, AND MHA. STAB COIL. GET ON WELL. 15:30 - 17:15 1.75 EVAL P WEXIT RUN IN HOLE WTIH DUMMY WHIPSTOCK MAKE IT TO 9250' WITH NO HOLE PROBLEMS. 17:15 - 19:15 2.00 EVAL P WEXIT PULL OUT OF HOLE. 19:15 - 19:45 0.50 EVAL P WEXIT PJSM FOR LD BHA. 19:45 - 20:00 0.25 EVAL P WEXIT LD DRIFT BHA. 20:00 - 20:10 0.17 WHIP P WEXIT PJSM FOR SLACK MANAGEMENT. 20:10 - 20:30 0.33 WHIP P WEXIT CUT OFF CTC. REBOOT ELINE. 20:30 - 21:00 0.50 WHIP P WEXIT REVERSING 2% XS KCL AT 3 BPM AT 1377 PSI. DID NOT HEAR WIRE MOVE. 21:00 - 23:00 2.00 WHIP P WEXIT POP OFF. FOUND NO WIRE MOVEMENT. STAB ON AND RETRY. STILL NO WIRE MOVEMENT PUMPING 2% XS KCL AT 3 BPM. MOVE FLUIDS IN PITS. FILL CT W/ FW. Printed: 5/24/2010 1:30:19 PM • BP EXPLORATION Page 2 of 2 Operations Summary Report Legal Well Name: R -26A Common Well Name: R -26A Spud Date: 1/20/1986 Event Name: RE ENTER Start: 4/19/2010 End: 4/26/2010 Contractor Name: NORDIC CALISTA Rig Release: Rig Name: NORDIC 2 Rig Number: N2 Date From - To Hours Task Code NPT Phase Description of Operations 4/21/2010 23:00 - 00:00 1.00 WHIP P WEXIT REVERSED SLACK W/ FW, WIRE MOVING. BEGIN CUTTING CT TO FIND WIRE. IAP = 10 PSI OAP = 10 PSI CONTINUED ON DIMS REPORT 04/22/10 4/22/2010 00:00 - 00:30 0.50 WHIP P WEXIT CONTINUED FROM DIMS REPORT 04/21/10 IAP = 10 PSI OAP = 10 PSI FINISH CUTTING CT. CUT 306' CT TO FIND WIRE. 00:30 - 00:45 0.25 WHIP P WEXIT PJSM FOR MU CTC. 00:45 - 02:45 2.00 WHIP P WEXIT TEST WIRE, GOOD (> 2000 M OHM RESISTANCE, CONTINUITY OF 56 OHM). MU CTC. PULL TEST TO 40 K, GOOD. HEAD UP BHI. RETEST WIRE W/ SAME RESULTS (GOOD). MU WHIPSTOCK SETTING ASSFMBLY.. 02:45 - 04:30 1.75 WHIP P WEXIT RIH W/ 4 -1/2" X 7" TTWS ASSEMBLY AT 70 FPM, NOT PUMPING. EDC IS OPEN. 04:30 - 06:30 2.00 WHIP P WEXIT LOG GR TIE -IN DOWN TO 9250' CTMD. CORRECTION OF ( -1') W/ REFERENCE TO SLB CBL/VDL 03/07/86. LOG CCL PASS UP TO 8700' MD, CONFIRM ON DEPTH. 06:30 - 07:30 1.00 WHIP P WEXIT CALL TOWN ENGINEER, CONFIRM SET DEPTH. RIH PAST SET DEPTH AND PULL UP TO SET DEPTH IN TENSION. PARK AT 9227.5' MD (TOWS AT 9210' MD), CLOSE EDC. CATCH PRESSURE AT 6.5 BBLS AWAY. CONTINUE PRESSURING UP CT; WOB INDICATOR SHOWING GRADUALLY INCREASING WOB AS PRESSURING UP CT. SHEAR AT 2200 PSI AT 7 BBLS AWAY. STACK INCREMENTAL 3K LB (ON WOB INDICATOR). PU CLEAN AT 44K LB. 07:30 - 09:15 1.75 WHIP P WEXIT BEGIN POOH NOT PUMPING. 09:15 - 10:45 1.50 WHIP P WEXIT AT SURFACE. GET OFF WELL. UNSTAB COIL. LD WS SETTING TOOLS. STAND BACK INTEQ BHA. MU NOZZLE ASSEMBY W/0 CHECKS. GET ON WELL. 10:45 - 12:15 1.50 WHIP P WEXIT RUN IN HOLE. TAG WHIPSTOCK AT 9220' UNCORRECTED. SUBTRACT 10' CORRECTION. PU TO 9180'. 12:15 - 13:30 1.25 WHIP P WEXIT DISPLACE COIL X TBG ANNULUS WITH 2% KCL. 4 BPM AT 51 PSI WHP. HOLD PJSM WITH LRS PUMPERS. Printed: 5/24/2010 1:30:19 PM • North America - ALASKA - BP Page 1 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay j Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA 1 UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) I 4/21/2010 00:00 - 01:10 1.17 BOPSUR P WEXIT CONTINUED FROM DIMS REPORT 04/20/2010 IN THE MOBILIZATION EVENT IAP = 10 PSI OAP = 10 PSI PULL BPV. 130 PSI BELOW BPV. BLEED OFF LUBRICATOR (ALL GAS). LD BPV LUBRICATOR ASSEMBLY. 01:10 - 01:40 0.50 BOPSUR P WEXIT I PJSM FOR PRESSURE TESTING INNER REEL VALVE. 01:40 - 03:00 1.33 BOPSUR P WEXIT PRESSURE TEST INNER REEL VALVE. GOOD. 03:00 - 06:15 3.25 KILLW P WEXIT MU AND RIH W/ NOZZLE ASSEMBLY TO CIRCULATE DIESEUGAS FROM WELLBORE. FIND 70 PSI ON WELLBORE WHEN OPEN UP TO RIH. OPEN TO TT, PRESSURE FALLS AWAY IN FEW MINUTES. RIH W/ OPEN CHOKE. NO LIQUID RETURNS AS RIH. ATTEMPT TO CIRCULATE FROM 6000' MD, UNABLE TO ESTABLISH RETURNS AT SURFACE. POOH PUMPING AT MINIMUM RATE (0.4 BPM AT 30 PSI). 06:15 - 09:00 2.75 KILLW P WEXIT LAY DOWN NOZZLE BHA. MU LEFT HAND MILLING & CLEAN OUT BHA. _ STAB COIL. GET ON WELL. 09:00 - 10:30 1.50 CLEAN P WEXIT RUN IN HOLE. CIRC AT MIN RATE, 0.5 BPM AT 350 PSI. NO RESTRICTION FOUND FROM 7300' TO 7600'. 10:30 - 11:00 0.50 CLEAN P WEXIT TAG XN NIPPLE AT 7881'. PU. CIRC AT 2.64 BPM AT 1880 PSI. MILL NIPPLE EASILY. 11:00 - 11:30 0.50 CLEAN . 1 P WEXIT CLEAN OUT TO 9250'. 11:30 - 12:00 0.50 CLEAN P WEXIT REAM OUT OF HOLE. OVERPULL AND STOP AT 8920'. RIH. BACK REAM UP. NO ADDITIONAL OVERPULLS NOTED. 1 12:00 - 14:00 2.00 CLEAN P WEXIT CONTINUE TO PULL OUT OF HOLE. 0.52 BPM AT 10 PSI. WELL CONTINUES TO TAKE FLUID WITH NO RETURNS NOTED. 14:00 - 15:30 1.50 CLEAN P WEXIT 1 AT SURFACE GET OFF WELL. UNSTAB COIL. LD MILLING BHA TOOLS. MU DUMMY WHIPSTOCK ON JARS, PH 6, AND MHA. STAB COIL. GET ON WELL. 15:30 - 17:15 1.75 EVAL P WEXIT RUN IN HOLE WTIH DUMMY WHIPSTOCK. MAKE IT TO 9250' WITH NO HOLE PROBLEMS. 17:15 - 19:15 2.00 EVAL P WEXIT PULL OUT OF HOLE. 19:15 - 19:45 0.50 EVAL P WEXIT PJSM FOR LD BHA. 19:45 - 20:00 0.25 EVAL P WEXIT LD DRIFT BHA. 20:00 - 20:10 0.17 WHIP P WEXIT PJSM FOR SLACK MANAGEMENT. 20:10 - 20:30 0.33 WHIP P WEXIT CUT OFF CTC. REBOOT ELINE. 20:30 - 21:00 0.50 WHIP P WEXIT REVERSING 2% XS KCL AT 3 BPM AT 1377 PSI. DID NOT HEAR WIRE MOVE. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 2 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 23:00 2.00 WHIP P WEXIT POP OFF. FOUND NO WIRE MOVEMENT. STAB ON AND RETRY. STILL NO WIRE MOVEMENT PUMPING 2% XS KCL AT 3 BPM. MOVE FLUIDS IN PITS. FILL CT W/ FW. 23:00 - 00:00 1.00 WHIP P WEXIT REVERSED SLACK W/ FW, WIRE MOVING. BEGIN CUTTING CT TO FIND WIRE. AAP = 10 PSI OAP = 10 PSI CONTINUED ON DIMS REPORT 04/22/10 4/22/2010 00:00 - 00:30 0.50 WHIP P WEXIT CONTINUED FROM DIMS REPORT 04/21/10 IAP = 10 PSI OAP = 10 PSI FINISH CUTTING CT. CUT 306' CT TO FIND WIRE. 00:30 - 00:45 0.25 WHIP P WEXIT PJSM FOR MU CTC. 00:45 - 02:45 2.00 WHIP P WEXIT TEST WIRE, GOOD (> 2000 M OHM - RESISTANCE, CONTINUITY OF 56 OHM). MU CTC. PULL TEST TO 40 K, GOOD. HEAD UP BHI. RETEST WIRE W/ SAME RESULTS (GOOD). MU WHIPSTOCK SETTING ASSEMBLY. 02:45 - 04:30 1.75 WHIP P WEXIT RIH W/ 4 -1/2" X 7" TTWS ASSEMBLY AT 70 FPM, NOT PUMPING. EDC IS OPEN. 04:30 - 06:30 2.60 WHIP ` P WEXIT LOG GR TIE -IN DOWN TO 9250' CTMD. CORRECTION OF ( -1') W/ REFERENCE TO SLB CBWDL 03/07/86. LOG CCL PASS UP TO 8700' MD, CONFIRM ON DEPTH. 06:30 - 07:30 1.00 WHIP 1 P WEXIT CALL TOWN ENGINEER, CONFIRM SET DEPTH. RIH PAST SET DEPTH AND PULL UP TO SET DEPTH IN TENSION. PARK AT 9227.5' MD (TOWS AT 9210' MD). CLOSE EDC. CATCH PRESSURE AT 6.5 BBLS AWAY. CONTINUE PRESSURING UP CT; WOB INDICATOR SHOWING GRADUALLY INCREASING WOB AS PRESSURING UP CT. SHEAR AT 2200 PSI AT 7 BBLS AWAY. STACK INCREMENTAL 3K LB (ON WOB INDICATOR). PU CLEAN AT 44K LB. 07:30 - 09:15 1.75 WHIP P WEXIT BEGIN POOH NOT PUMPING. 09:15 - 10:45 1.50 WHIP P WEXIT AT SURFACE. GET OFF WELL. UNSTAB COIL. LD WS SETTING TOOLS. STAND BACK INTEQ BHA. MU NOZZLE ASSEMBY W/O CHECKS. GET ON WELL. 10:45 - 12:15 1.50 WHIP P WEXIT RUN IN HOLE. TAG WHIPSTOCK AT 9220' UNCORRECTED. SUBTRACT 10' CORRECTION. PU TO 9180'. 12:15 - 13:30 1.25 WHIP P WEXIT DISPLACE COIL X TBG ANNULUS WITH 2% KCL. 4 BPM AT 51 PSI WHP. HOLD PJSM WITH LRS PUMPERS. Printed 5/24/2010 1:16:50PM • North America - ALASKA - BP Page 3 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 IX3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:30 - 20:00 6.50 WHIP P WEXIT RU LRS IN CELLAR. PUMP 145 BBLS DIESEL DOWN CT X TBG ANNULS. SIWHP: 220 PSI. RELEASE LRS. PJSM WITH SLB CEMENTERS. SPOT VAC TRUCKS. PRIME PUMPER. TEST LINES TO 4000 PSI. PUMP 5 BBLS KCL, 25 BBLS CLASS G 15.8 PPG SQUEEZE BLEND CMT, DISPLACE WITH 5 BBLS KCL AND 2# BIOZAN. BEGIN TO NOTE PRESSURE BUILD WITH 81 BBLS TOTAL DOWN COIL (COIL VOL: 64 BBLS, 7 BBLS TO PBTD, LEAVES 8 BBLS LEFT TO SQUEEZE). TAKE RTNS AND LAY IN REMAINING 8 BBLS 1:1. POOH TO SAFETY AND LET CEMENT SWAP FOR 30 MINUTES. WHP: 350 PSI. ( 'SLOWLY INCREAS WHP TO 750 PSI. WAIT 30 MINUTES. INCREASE WHP TO 1200 PSI. HOLD FOR 30 MIN. START BIOZAN DOWN COIL. TAKE RETURNS WHILE HOLDING 500 PSI ON WELL HEAD. 20:00 - 20:40 0.67 WHIP P WEXIT 'CIRCULATING BIOZAN TO NOZZLE WHILE PARKED AT SAFETY. HOLDING 500 PSI WHP ' 1 (300 PSI ABOVE STATIC). REDUCE WHP INCREMENTALLY TO HOLD CONSTANT IPRESSURE ON CEMENT AS DIESEL ON !BACKSIDE IS DISPLACED BY KCL. 20:40 - 22:00 1.33 WHIP P WEXIT : BIOZAN AT NOZZLE. RIH JETTING W/ 1.5 PPB BIOZAN TO CONTAMINATE EXCESS CEMENT. i RIH CLEAN AT 10 FPM THROUGH CEMENT, NO WEIGHT BOBBLES. PUMPING 1.5 BPM AT 1030 PSI W/ 60 PSI BACKPRESSURE. ' RETURNS 1:1. AT 9125' MD SEE SUDDEN SUSTAINED i INCREASE IN CIRC PRESSURE TO 1.5 BPM AT 1140 PSI NO ASSOCIATED WEIGHT BOBBLE. CONTINUE CLEANOUT DOWN TO TAG AT 'WHIPSTOCK AT 9210' CTMD. RECIPROCATE ABOVE WHIPSTOCK JETTING WITH BIOZAN. 22:00 - 23:45 1.75 WHIP P WEXIT POOH CHASING BIOZAN W/ 2% XS KCL FROM 9210' MD. RETURNS 1:1. SMALL AMOUNT OF CEMENT RETURNED AT SIIRFACF WITH ROTTOMS 11P. CEMENT WAS VERY DILLUTED, ONLY INCREASING RETURN DENSITY TO 8.8 PPG. 23:45 - 00:00 0.25 WHIP P WEXIT TAG UP AT SURFACE. PJSM FOR LAYING DOWN CEMENTING BHA. IAP = 20 PSI. OAP = 10 PSI. CONTINUED ON WELL REPORT 04 /23/10 4/23/2010 00:00 - 00:30 0.50 WHIP WEXIT CONTINUED FROM REPORT 04/22/10 IAP = 20 PSI OAP = 10 PSI UNSTAB. LD CEMENTING BHA.. CALL FROM SLB LAB: CEMENT SAMPLE AT 500 PSI COMPRESSIVE STRENGTH. 00:30 - 01:25 0.92 WHIP P WEXIT MU SWIZZLE STICK. STAB ON. JET STACK AND CHASE OUT DEAD LEGS FROM SURFACE IRON. NO CEMENT OBSERVED IN RETURNS. UNSTAB, LD SWIZZE STICK. 01:25 - 01:45 0.33 STWHIP P WEXIT PJSM FOR MU WINDOW MILLING ASSEMBLY. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 4 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21 /2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:45 - 02:30 0.75 STWHIP P WEXIT MU AND STAB ON WITH WINDOW MILLINQ ASSEMBLY. REAMER AND MILL ARE BOTH NEW - BOTH ARE 3.81 GO / 3.80 NO GO. 02:30 - 02:45 0.25 STWHIP P WEXIT RIH W/ WINDOW MILLING ASSEMBLY. PARK TO ADDRESS PROBLEM W/ REEL BUSHING. 02:45 - 04:00 1.25 STWHIP P WEXIT TWO REEL BUSHINGS COMING OUT OF REEL. TAKE TENSION OFF REEL AND REINSTALL BUSHINGS. 04:00 - 05:45 1.75 STWHIP P WEXIT CONTINUE RIH W/ WINDOW MILLING ASSEMBLY. AT 05:30 - RIH PUMPING AT 0.7 BPM ' THROUGH MOTOR AT 250 PSI CIRC PRESSURE. RETURNS ARE 1:1. 05:45 - 07:15 1.50 ' STWHIP P WEXIT LOG TIE -IN PASS. SUBTRACT 2' CORRECTION. RIH. 07:15 - 12:00 4.75 STWHIP P WEXIT TAG WHIPSTOCK AT 9215' WITH PUMPS ON. BEGIN TIME MILLING AT 0.1' PER 6 MINUTES. 3040 PSI FS AT 2.55 BPM IN/OUT. DHWOB: 1.2 • - 1.8K# PVT: 333 BBLS. BHP: 4436 PSI. EGO: 9.83 PPG MILL 9 SLB LAB INDICATES CEMENT AT 1690 PSI COMP STRENGTH. 12:00 - 15:00 3.00 STWHIP P WEXIT I CONTINUE MILLING WINDOW FROM 9219'. 2780 PSI FS AT 2.55 BPM IN/OUT. ' DHWOB: 1.35 K# MILL TO 9222.1'. LOTS OF METAL NOTED ON DITCH MAGNETS. 15:00 - 17:00 2.00 STWHIP P_ WEXIT MILL AHEAD FROM 9222.1' 2820 PSI FS AT 2.54 BPM IN/OUT. 17:00 - 19:00 2.00 STWHIP )ID WEXIT DRILLING OPEN HOLE IN SAG RIVER , FORMATION. 2850 PSI FS AT 2.53 BPM IN/OUT. 200 -300 PSI MTR WORK. DHWOB: 2.5 -3.0K# ESTIMATED TOP WHIP: 9210' EST TOP WINDOW: 9215' EST BOT WINDOW: 9223' DRILL TO 9231' MD. 19:00 - 20:30 1.50 STWHIP P WEXIT BACK REAM WINDOW THREE RECIPROCATIONS AT 60 FPH. NOWEIGHT BOBBLES / NO MOTORWORK DURING BACKREAMING. DRY DRIFT WINDOW, CLEAN. 20:30 - 22:45 2.25 STWHIP P WEXIT POOH. PUMP AT 2.7 BPM THROUGH MOTOR INTO TT. ONCE ABOVE XN NIPPLE, OPEN EDC AND CIRCULATE AT 3 BPM AS POOH. 22:45 - 23:00 0.25 STWHIP P WEXIT PJSM FOR LD WINDOW MILLING BHA. 23:00 - 23:20 0.33 STWHIP P WEXIT LD WINDOW MILLING ASSEMBLY. GAUGE MILL/REAMER: 3.79" GO, 3.78" NO GO. CHECK HP FILTER, NO OBSERVABLE METAL FILINGS IN FILTER. 23:20 - 00:00 0.67 DRILL P LNR1 MU BUILD BHA WITH 3.4 DEG MOTOR AND NtW HYGALUG RAZOR BICENTERED BIT. IAP: 150 PSI OAP: 10 PSI CONTINUED ON REPORT 04/24/10. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP 40 Page 5 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 I 'X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 1 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA I UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ft) 4/24/2010 00:00 - 00:10 0.17 DRILL P LNR1 CONTINUED FROM REPORT 04/23/10 IAP: 150 PSI OAP: 10 PSI CONTINUE MU BUILD BHA. 00:10 - 01:45 1.58 DRILL P LNR1, RIH W/ BUILD BHA PUMPING THROUGH OPEN EDC. AT 01:15: RIH AT 6350' CTMD PUMPING " THROUGH OPEN EDC AT 0.34 BPM AT 1210 PSI W/ FULL RETURNS. 01:45 - 02:30 0.75 DRILL P . ; LNR1 LOG CORRELATION PASS. CORRECTION OF -3') 02:30 - 06:00 3.50 DRILL P LNR1 ENGAGE AT9231A' MD AND BEGIN TO DRILL_ AHEAD. FREESPIN: 2.51 BPM AT 3015 PSI. UP WEIGHT 38K LB. 04:15 - DRILLING AHEAD AT 9254' MD AT 2.51 BPM AT 3150 - 3350 PSI W/ -3K LB WOB AND f t 10 DEG ROHS TF. RETURNS 1:1. DRILL TO 9301' PVT: 307, AVERAGE ROP 20 FPH. 06:00 - 06:30 0.50 DRILL P LNR1 CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND OUTSIDE ROUNDS. CONTINUE TO DRILL AHEAD. 06:30 - 09:30 3.00 DRILL • LNR1 1DRILL AHEAD FROM 9301'. 2877 PSI FS AT 2.57 BPM IN/OUT. 200 -300 PSI / MTR WORK. 1 -1.5K# DHWOB. PVT: 316 BBLS. IA/OA: 361 1 PSV13 PSI. BHP: 4523 PSI AT 8758 TVD. ECD: 9.85 PPG DRILL TO 9400' 09:30 - 10:45 1.25 DRILL LNR1 WIPER TRIP TO CSG. OPEN EDC AND CIRCULATE OUT 7' TO PREP FOR TIE IN LOG. LOG GR TIE IN FROM 9035'. RA TAGS LOGGED AT 9219.5'WINDOW DEPTHS CONFIRMED AT : TOP WHIP: 9210' TOP WINDOW: 9215' BOT WINDOW: 923' RA TAG: 9219.5' RUN IN HOLE. 10:45 - 13:00 2.25 DRILL LNR1 DRILL AHEAD FROM 9400'. 2850 PSI FS AT 2.58 BPM IN/OUT. 250 -350 PSI MTR WORK. 3.0 K# DHWOB ROP: VARIABLE FROM SAG RIVER TO SHUBLIK TO IVISHAK FORMATIONS. 13:00 - 14:30 1.50 DRILL LNR1 WIPER TRIP TO BTM OF WINDOW. j HOLE SMOOTH. 14:30 - 15:15 0.75 DRILL LNR1 DRILL AHEAD FROM 9550'. 3150 PSI FS AT 2.58 BPM IN/OUT LAND BUILD SECTION AT 9641'. 15:15 - 17:10 1.92 DRILL P LNR1 WIPER TRIP TO JUST ABOVE WINDOW. OPEN EDC. CIRCULATE OUT 7" AND 9 -5/8" CASG. 17:10 - 17:25 0.25 DRILL P LNR1 PJSM FOR LD BUILD BHA. 17:25 - 18:15 0.83 DRILL P LNR1 LD BUILD BHA. GRADE BIT 5:1 (ALL THREE CUTTERS ON INNER ROW OF NOSE BROKEN). 18:15 - 18:30 0.25 DRILL P LNR1 CREW CO. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP 410 Page 6 of 18 • Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft ) 18:30 - 18:40 0.17 DRILL P LNR1 PJSM FOR MU LATERAL BHA. 18:40 - 19:05 0.42 DRILL P LNR1 MU LATERAL BHA, 1.35 DEG BEND, USED HYCALOG T -REX BI- CENTERED BIT. CLEAN HP SCREEN, MINIMAL DEBRIS. 19:05 - 21:00 1.92 DRILL P LNR1 RIH. 21:00 - 21:15 0.25 DRILL P LNR1 LOG TIE -IN. CORRECTION OF ( -2.5') 21:15 - 00:00 2.75 DRILL P LNR'I BOBD. FREESPIN 2.55 BPM AT 3050 PSI. ENGAGE AT 9641 AND BEGIN DRILLING AHEAD AT 2.53 BPM AT 3250 PSI W/ 1K WOB. PVT: 280. ROP: 45 FPH. 22:40 - DRILLING AHEAD AT 9688' MD AT 2.53 BPM AT 3220 PSI W/ 1K WOB. PVT: 277. ROP: 30 FPH. 23:20 - DRILLING AHEAD AT 9700' MD AT 2.55 BPM AT 3200 PSI W/ 1.4K WOB. PVT: 270. ROP: 30 FPH. AT MIDNIGHT: DRILLING AHEAD AT 9713' MQ. IAP: 80 PSI OAP: 20 PSI CONTINUED ON REPORT 04/25/10 4/25/2010 00:00 - 04:45 4.75 DRILL P LNR1 CONTINUED FROM REPORT 04/24/10 I IAP: 80 PSI 1 OAP: 20 PSI DRILLING AHEAD FROM 9713' MD. 1 02:00: DRILLING AHEAD AT 9760' MD AT 2.52 BPM AT 3210 PSI W/ 3K WOB. PVT: 269. ROP: 40 FPH. 03:30: DRILLING AHEAD AT 9780' MD AT 2.52 - BPM AT 3480 PSI W/ 4K WOB. PVT: 268. ROP: 12 FPH. 04:20: DRILLING AHEAD AT 9787' MD AT 2.53 BPM AT 3655 PSI W/ 5K WOB. PVT: 267. ROP: 10 FPH. DRILL TO 9800' MD. 04:45 - 06:30 1.75 DRILL P LNR1 WIPER FROM 9800' MD AT 2.52 BPM AT 3150 PSI. SLOW PULLING SPEED FOR MAD RESISTIVITY PASS FROM 9650' MD. SLOW PUMP RATE WHEN PASSING SAG/SHUBLIK INTERFACE. 06:30 - 10:45 4.25 DRILL P LNR1 DRILL AHEAD FROM 9800'. 3550 PSI FS AT 2.54 BPM IN/OUT. 200 -300 PSI MTR WORK. DHWOB: 3 -4K #. BHP /ECD /PVT: 4608 PSI / 10.02 PPG/ 262 BBLS. IA/OA: 216 PSI / 15 PSI. ROP VERY LOW AT 9840 -50'. SUSPECT BIT DULLED. 10:45 - 12:30 1.75 DRILL P LNR1 WIPER TRIP TO WINDOW. 3190 PSI FS AT 2.58 BPM IN. OPEN EDC. CIRC OUT 7" AND 9 -5/8" TO TBG TAIL. CIRC OUT OF HOLE. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 7 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM ! Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date 1 From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 15:00 2.50 DRILL P LNR1 AT SURFACE. JOG IN HOLE. NO CUTTINGS SURGE. STAND BACK BHA. CHECK BIT. TWO NOSE JETS PLUGGED & BIT BALLED UP. REPLACE RES TOOL DUE TO LOOSE EXTERNAL PLATE SECTION. RERUN 1.3 MTR. RUN HYCALOG REBUILD BICENTER (TREX) MU TOOLS. STAB COIL. TEST TOOLS. 15:00 - 17:15 2.25 DRILL P LNR1 GET ON WELL. RUN IN HOLE. CIRC AT 0.51 BPM AT 1296 PSI. 17:15 - 17:30 0.25 DRILL P LNR1 LOG GR TIE IN FROM 9240'. -4' CORRECTION TO RA TAG. RUN IN HOLE 17:30 - 00:00 6.50 DRILL P LNR1 DRILL AHEAD FROM 9850', 3120 PSI FS AT 2.59 BPM I WOUT. 21:00: DRILLING AHEAD AT 9874' MD. FREESPIN 2.53 BPM AT 3175 PSI. BHP /ECD /PVT: 4588 PSV10.0 PPG/256. IAP = 180 PSI, OAP = 15 PSI. DRILL AHEAD W/ 200 - 300 PSI MOTOR WORK, DH WOB 3 -4K LB. RETURNS 1:1. 22:20: DRILLING AHEAD AT 9883' MD AT 2.56 BPM AT 3300 PSI W/ 4K LB WOB. r BHP /ECD /PVT: 4588 PSI / 10.0 PPG / 250. { RETURNS 1:1. ROP -10 FPH. AT MIDNIGHT, DRILLING AHEAD AT 9895' MD AT 2.57 BPM AT 3280 PSI W/ 4K WOB. BHP /ECD /PVT: 4586 PSI / 10.0 PPG / 250. ` C RETURNS 1:1. ROP -10 FPH. IAP: 265 PSI OAP: 15 PSI CONTINUED ON REPORT 04/26/10. 4/26/2010 00:00 - 02:30 2.50 DRILL P LNR1 CONTINUED FROM REPORT 04/25/10. IAP: 265 PSI OAP: 15 PSI CONTINUE DRILLING AHEAD FROM 9895' MD. 01:00 - DRILLING AHEAD AT 9903' MD AT 2.53 BPM AT 3208 PSI AT 15 FPH W/ 2.7K WOB. RETURNS 1:1. BHP /ECD /PVT: 4591 PSI / 10.01 PPG /246. 02:30 - DRILLING AHEAD AT 9911' MD AT 2.51 BPM AT 3200 PSI W/ 3.3K WOB. BHP /ECD /PVT: 4591 PSI / 10.02 PPG / 246. RETURNS 1:1. IDENTIFY LOOSE STUD BOLTS ON SSV X MASTER VALVE FLANG. 5 BOLTS OUT OF 8 ARE LOOSE. THE THREE THAT ARE NOT LOOSE ARE ADJACENT, THERE IS AN EXTRA 1/16" GAP AT THE, FLANGE FACE ON THE SIDE OF THE FLANGE W/ THE LOOSE BOLTS. THE FLANGE IS NOT CURRENTLY LEAKING. I I Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 8of18 Operation Summary Report Common Well Name: R -26A 1 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date I From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 - 05:30 3.00 DRILL P LNR1 PJSM MEETING WITH CREW TO DISCUSS LOOSE NUTS. FORMULATE PLAN FOR ADDRESSIN OW. PU FOR WIPER FROM 9911' MD. WIPER TO WINDOW. OPEN EDC AND CIRCULATE TO TT AT 4.1 BPM AT 4040 PSI W/ 1:1 RETURNS. PARK IN TT. CIRCULATE BOTTOMS UP THROUGH OPEN EDC. SHUT DOWN PUMP. FLOW CHECK, GOOD. 1 WITH NO PRESSURE ON WELLHEAD SLACK • •► I. •i • , . ► SLIGHT COMPRESSION (NEAR NEUTRAL). RE- TORQUE LOOSE STUDS. CONFIRM NO OTHER LOOSE STUDS ON TREE. PICK BACK UP ON INJECTOR. ONLINE DOWN • CT AND RBIH TO RESUME DRILLING. TIE -IN, CORRECTION OF ( +2'). 05:30 - 06:00 0.50 DRILL ', P ', LNR1 RESUME DRILLING FROM 9911' MD. FREESPIN 2.52 BPM AT 3100 PSI. DRILL AHEAD AT 2.52 BPM AT 3250 PSI W/ 3K -_: LB WOB. BHP /ECD/PVT: 4580 PSI / 9.99 PPG / 242. RETURNS 1:1. 1AP = 330 PSI. OAP = 15 PSI. 06:00 - 06:15 0.25 (DRILL r P , LNRI CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND OUTSIDE ROUNDS. _ CONTINUE TO DRILL AHEAD. 06:15 - 08:45 2.50 DRILL P ' LNR1 CONTINUE TO DRILL AHEAD FROM 9915'. ROP VERY SLOW. ! r _ 08:45 - 11:00 2.25 DRILL t P LNR1 INCREASE RATE AND DHWOB FROM 2.55 BPM/ 3K# TO 2.7 BPM / 4.5K# ROP INCREASED FROM 10 TO 20 FPH. 3200 PSI FS AT 2.71 BPM IN/OUT. 200 -350 PSI MTR WORK. BHP /ECD /PVT: 4599 PSI / 10.04 PPG / 236 BBLS. IA/OA: 382 PSI / 16 PSI. ROP INCREASED. APPARENTLY DRILLED PAST A HARD SPOT. DRILL TO 9990'. 11:00 - 12:30 1.50 DRILL P LNR1 DRILL AHEAD FROM 9990'. 3650 PSI FS AT 2.76 BPM IN/OUT. 300 PSI MTR WORK. DHWOB: 4.0K# NOTE TOP OF SHUBLIK ON GR RESPONSE. TD BUILD SECTION 10045'. 12:30 - 13:30 1.00 DRILL P LNR1 MAKE WIPER TRIP TO WINDOW. LOG GR TIE IN. NO CORRECTION. RIH. CONFIRM TD AT 10,045'. WIPER BACK TO WINDOW. 13:30 - 16:00 2.50 DRILL P LNR1 OPEN EDC. CIRCULATE 7" LINER AT 4.1 BPM. CIRCULATE 9-5/8" CSG SECTION AT 70% TO SWEEP ANY CUTTINGS. 16:00 - 17:00 1.00 DRILL P LNR1 AT SURFACE. UNSTAB COML. LD TOOLS AND BLOW DOWN SAME. SET INJECTOR IN BUNG HOLE. 17:00 - 17:30 0.50 CASING P LNR1 HOLD PJSM. PUMP SLACK FROM REEL, 261' OF WIRE PUMPED OUT. 17:30 - 18:30 1.00 CASING P LNR1 PUT BALL CATCHER ON AND PUMP 3/4" BALL. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP 40, Page 9 of 18 • Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 1X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) ' 18:30 - 19:10 0.67 CASING P LNR1 LOAD LINER RUNNING TOOLS INTO PIPE SHED. 19:10 - 19:40 0.50 CASING P LNR1 PU INJECTOR. CHECK FOR BALL - NO BALL. STAB BACK ON AND PUMP AGAIN. 19:40 - 20:15 0.58 CASING P LNR1 RECOVER BALL. PJSM, PREP COIL FOR BOT CTC. 20:15 - 20:30 0.25 CASING P LNR1 PREP RIG FLOOR TO RUN LINER. 20:30 - 21:00 0.50 CASING P LNR1 PJSM FOR RUNNING LINER. 21:00 - 00:00 3.00 CASING P LNR1 I MU LINER SHOE AND JEWELRY. BEGIN RUNNING LINER. IAP: 10 PSI OAP: 15 PSI CONTINUED;ON, REPORT 04/27/10 4/27/2010 00:00 - 03:00 3.00 CASING P LNR1 CONTINUED FROM REPORT 04/26/10. IAP: 10 PSI OAP: 15 PSI CONTINUE MAKING UP LINER. BOTTOM TEN CONNECTIONS WERE BAKER LOCKED. 103:00 - 03:20 0.33 CASING - P LNR1 PJSM FOR RUNNING 1.25" CSH AND CTLRT. 03:20 - 07:15 3.92 CASING P I LNR1 [BEGIN RUNNING 1.25" CSH. RUN 70 JTS CSH AND TWO PUPS (1.91' AND 2.451 TO SPACE OUT. WITH STINGER STUNG IN 0-RING SUB, PT LINER X CSH ANNULUS TO 500 PSI - GOOD. MU CTLRT AND 2 JTS PH6. STAB COIL. GET ON WELL. FILL LINER. 07:15 - 09:45 2.50 CASING P LNR1 RUN IN HOLE. 158K# UP WT AT WINDOW, DRY. CONTINUE TO RIH. CIRC AT MIN RATE, 0.12 BPM AT 1690 PSI. TAG BTM AT 10045'. 26K# RNG WT. 58K# PU WT OFF BTM. ONE MINOR SET DOWN, OTHER WISE HOLE VERY SMOOTH. 09:45 - 10:30 0.75 CASING P LNR1 POSITION REEL FOR BALL DROP. DROP 5/8" STEEL BALL. PLACE LINER ON BTM IN COMPRESSION. GOOD AUDIO ON BALL OVER GOOSENECK AT 34 BBLS AWAY. 0.15 BPM AT 1650 PSI. 1 BALL ON SEAT AT 46 BBLS. PRESSURE TO 3450 PSI TO ACTIVATE RELEASE. • : I 10:30 - 11:00 0.50 CASING P LNR1 HOLD TABLETOP EXERCISE TO DISCUSSS GAS LEAK IN CELLAR. 11:00 - 15:00 4.00 CASING P LNR1 HOLD PJSM TO DISCUSS DISPLACEMENT TO KCL. CIRC WELL AT 2650 PSI AT 1.55 BPM IN/OUT. 15:00 - 15:45 0.75 CASING P LNR1 WELL SWAPPED OVER TO KCL. RIG UP CEMENTERS. 15:45 - 16:00 0.25 CASING P LNR1 PJSM W/ CREW FOR CEMENT JOB. 16:00 - 17:00 1.00 CASING P LNR1 BATCH CEMENT (35 BBLS). 17:00 17:20 0.33 CASING P LNR1 CEMENT AT WEIGHT. PT CEMENT LINE TO 3500 PSI. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP 40. Page 10 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER - ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) 17:20 - 17:40 0.33 CASING P (ft) LNR1 STAGE 30.5 BBLS 15.8 PPG CEMENT. 10 BBLS CEMENT AWAY: 1.6 BPM, 2650 PSI, FULL RETURNS 20 BBLS CEMENT AWAY: 1.6 BPM, 2700 PSI, FULL RETURNS. 30 BBLS CEMENT AWAY: 1.4 BPM, 2700 PSI, I FULL RETURNS. 17:40 - 18:30 0.83 CASING P LNR1 30.5 BBLS TOTAL CEMENT PUMPED. DOWN ON PUMP. CLEAN CEMENT LINE. PUMP BIO TO COIL. STAGE -50 BBL BIOZAN DISPLACEMENT. 10 BBL BIO PUMPED: 1.6 BPM, 2950 PSI, FULL RETURNS. 20 BBL BIO PUMPED: 1.8 BPM, 2530 PSI, FULL RETURNS. 30 BBL BIO PUMPED: 1.8 BPM, 1800 PSI, FULL RETURNS. 37.3 BBL BIO PUMPED: CEMENT AT SHOE. 40 BBL BIO PUMPED: 1.7 BPM, 2600 PSI, FULL RETURNS. t - f 50 BBL BIO PUMPED: 1.6 BPM, 3200 PSI, FULL RETURNS. SWAP TO KCL. 60 BBL PUMPED: 1.5 BPM, 3000 PSI, FULL RETURNS. 66 BBL PUMPED: 0.5 BPM, 800 PSI, FULL RETURNS. 18:30 - 18:35 0.08 ` CASING P LNR1 66.5 BBL PUMPED. STOP PUMP. 1.3 BBLS UNDERDISPLACED TO SHOE. FULL RETURNS THROUGHOUT CEMENT JOB. A- q QU 17' TO STING OUT (10030'). CHECK FLOAT �, COLLAR FOR BACK FLOW - NO FLOW. cl. Ov9 S r7 t S) ESTIMATED TOC: 8655' MD, 18:35 - 18:40 0.08 CASING P LNR1 CIRC OUT 0.45 BPM AT 650 PSI. CIRC 5 BBL BIO ABOVE 0-RING SUB. 18:40 - 19:10 0.50 CASING P LNR1 PULL COIL, 50 FPM, 0.5 BPM, 0.3 BPM RETURNS. SPEED UP TO 70 FPM, 0.7 BPM, 570 PSI, 0.3 BPM RETURNS. 19:10 - 19:20 0.17 CASING P LNR1 POOH AT 30 FPM AT 7900'. CIRC AT 2.0 BPM AT 2000 PSI, CIRC TOP OF LINER CLEAN. 19:20 - 19:40 0.33 CASING P LNR1 POOH AT 70 FPM, 2.1 BPM, 2000 PSI. 19:40 - 20:10 0.50 CASING P LNR1 AT -3000', REDUCE PUMP RATE TO 0.95 BPM AT 630 PSI. CO. MAN C/O. TAG UP AT SURFACE. 20:10 - 20:30 0.33 CASING P LNR1 PJSM FOR LD CSH. 20:30 - 21:15 0.75 CASING P LNR1 FLOW CHECK - GOOD. UNSTAB. 21:15 - 00:00 2.75 CASING P LNR1 LD CSH. IAP: 10 PSI OAP: 10 PSI CONTINUED ON REPORT 04/28/10. 4/28/2010 00:00 - 02:00 2.00 CASING P LNR1 CONTINUED FROM REPORT 04 /27/10 IAP: 10 PSI OAP: 10 PSI j CONTINUE LD CSH. 1 02:00 - 02:15 0.25 CASING P LNR1 PJSM FOR MU SWIZZLE STICK AND JETTING STACK. 02:15 - 03:15 1.00 CASING P LNR1 SWIZZLE STACK AND CHASE OUT DEAD LEGS OF SURFACE IRON. 03:15 - 03:45 0.50 CASING P LNR1 PJSM FOR PUMPING N2. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 11 ofi8 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER - ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM 'Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 ©72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:45 - 06:00 2.25 CASING P LNR1 REEL BLOWDOWN WITH N2. BLEED PRESSURE TO TIGER TANK. 06:00 - 08:30 2.50 CASING P LNR1 INSTALL INTERNAL GRAPPLE AND PULL TEST. PULL COIL SUB TO REEL AND SECURE COIL FOR TRANSPORT. CHANGE OUT BOP RAMS FOR 2" COIL AND 2-3/8" LINER. 08:30 - 08:45 0.25 CASING P LNR1, SAFETY MEETING. REVIEW PROCEDURE, 'HAZARDS AND MITIGATION FOR SWAPPING REELS USING THE RIG BRIDGE CRANE. 08:45 - 10:30 1.75 CASING P LNR1 LOWER 2 -3/8" E -COIL ONTO TRAILER AND SECURE REEL. PICK NEW 2" E -COIL FROM TRAILER AND SECURE IN REELSTAND. CLOSE BOMBAY DOOkAND SECURE. 10:30 - 11:30 1.00 CASING P LNR1 CHANGE OUT COIL PACKOFF TO 2 ". 11:30 - 12:00 0.50 CASING P LNR1 INSTALL AND PULL TEST INSIDE GRAPPLE. PULL COIL TO INJECTER. STAB COIL. INTO INJECTER. SET INJECTER 1111 TO SIDE AND CHANGE OUT GRIPPER BLOCKS TO 2 ". INSTALL HARDLINE INSIDE NEW 2" REEL. 12:00 - 17:30 5.50_ BOPSUR P LNR1 PERFORM FULL BOPE PRESSURE / FUNCTION TFST FOR 2" COII TEST WITNESSED BY JOHN CRISP, AOGCC INSPECTER. TEST ALARMS. 17:30 - 22:00 4.50 RIGU � P 'i LNR1 INSTALL GRIPPER BLOCKS IN INJECTOR. 22:00 - 22:30 0.50 RIGU P LNR1 C/O SLING ON GOOSENECK. 22:30 - 00:00 1.50 RIGU P LNR1 PJSM. INSTALL BULKHEAD IN NEW 2" REEL OF CT. IAP: 10 PSI OAP: 10 PSI CONTINUED ON REPORT 04/29/10 4/29/2010 00:00 - 02:30 2.50 RIGU LNR1 CONTINUED FROM DIMS REPORT 04/28/10 IAP: 10 PSI OAP: 10 PSI CONTINUE INSTALLING BULKHEAD ON NEW 2" REEL OF CT. 02:30 - 03:30 1.00 RIGU LNR1 PJSM. PULL CT ACROSS. 03:30 - 03:50 0.33 RIGU LNR1 STAB CT. CUT OFF GRAPPLE. 03:50 - 04:10 0.33 RIGU LNR1 TEST ELINE: > 2000, 51 OHMS. 04:10 - 06:30 2.33 RIGU LNR1 FILL CT. PRESS TEST INNER REEL VALVE AND PACKOFF. 06:30 - 07:30 1.00 CEMT LNR1 _ PRESSURE TEST LINER LAP WITH 2000 PSI. GOOD TEST. 2000 PSI AT 0650 HRS, 1950 PSI AT 0720 HRS. LOST 50 PSI IN 30 MIN. 07:30 - 09:00 1.50 CEMT LNR1 M/U SWS CTC AND BHI UQC. PULL / PRESSURE TEST. CHECK E -LINE, OK. 09:00 - 09:15 0.25 CEMT LNR1 SAFETY MEETING. REVIEW PROCEDURE, HAZARDS AND MITIGATION FOR M/U MILLING BHA. 09:15 - 10:15 1.00 CEMT LNR1 M/U 2.74" MILLING BHA WITH 2.74" D331 MILL, REAMER, STRAIGHT MOTOR, UP /DOWN JARS, 2 JTS CSH AND COILTRAK. BHA #7 OAL = 107.22'. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP 411 Page 12 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA 1 UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations hr) (ft) 10:15 - 13:00 2.75 CEMT LNR1 RIH WITH 2.74" MILLING BHA. ■■ TAG 0 -RING SUB AT 10012' AND CORRECT TO 10013'. 13:00 - 16:00 3.00 CEMT LNR1 MILL THRU 0 -RING SUB EASY, ONE STALL. MILL CEMENT AT 10 -20 FPH FROM 10020- 10032'. CIRC 2# BIOZAN SWEEP AND REAM AREA. MILL THRU FLOAT CLLR AT 10032' WITH 4 STALLS. CIRC BIOZAN SWEEP AND REAM AREA. 16:00 - 17:00 1.00 CEMT LNR1 MILL CEMENT DOWN TO 10,042' AND STALL ON GUIDE SHOE. REAM UP /DOWN . MILL THRU GUIDE SHOE WITH 2 STALLS. • - MILL WITH 0.5K WOB, 1.6 BPM, 2200 FS, 2200 -2400 PSI, MILL 10' FORMATION TO 10052' AT 20 FPH. 17:00 - 17:30 0.50 CEMT �® LNR1 REAM AREA.' CLEAN SHOE, FLOAT CLLR AND 0 -RING SUB. 17:30 - 19:20 1.83 CEMT �® LNR1 POH WITH MILLING BHA. CIRC 1.4 BPM, 1650 PSI. 19:20 - 19:30 0.17 CEMT 1111111111111111 L•R1 IPJSM FOR BHA SWAP. 19:30 - 20:30 1.00 CEMT LNR1 OOH. UNSTAB. LD MILLING ASSEMBLY. f GAUGE MILL AND REAMER: 2.74 GO / 2.73 NO GO. CHANGEOUT LEVELWIND SPROCKET. 20:30 - 21:30 1.00 DRILL PROD1 TEST TREE TO 250 PSI / 3000 PSI FOR 5 MINUTES EACH, GOOD. MU LATERAL ASSEMBLY W/ RESISTIVITY. 21:30 - 00:00 2.50 DRILL } PROD1 RIH W/ LATERAL ASSEMBLY W/ 1.0 DEG BENT MOTOR AND HYCALOG RAZOR BI- CENTERED BIT. AT 22:30: RIH AT 4000' CIRCULATING THROUGH BIT AT 0.2 BPM AT 200 PSI. NO TROUBLE ENTERING LINER TOP. LOG TIE -IN FROM 9245' MD. CORRECTION OF ( -0 . 5 '). TAG BOTTOM AT 10055' MD. FREESPIN OF 1.52 BPM AT 2000 PSI. BEGIN DRILLING AHEAD AT —MIDNIGHT AT —80 FPH AT 1.55 BPM AT —2300 PSI W/ 1K LB WOB. BEGIN FLUID SWAP TO GEOVIS. IAP: 10 PSI OAP: 10 PSI CONTINUED ON REPORT 04/30/10. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 13 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT I NPT Depth Phase Description of Operations (hr) (ft) 4/30/2010 00:00 - 02:00 2.00 DRILL PROD1 CONTINUED FROM REPORT 04/29/10 IAP: 10 PSI OAP: 10 PSI DRILLING AHEAD FROM 10052' MD AT 1.55 BPM AT -2300 PSI W/ 1K LB WOB AT -80 FPH. 00:35: DRILLING AHEAD AT 10094' MD. BHI REPORTS THAT RESISTIVITY TOOL IS NOT WORKING, JUST DISPLAYING DEFAULT VALUES. CALL TOWN GEO. TOWN GEO SAYS THAT REALTIME RESISTIVITY IS CRITICAL SO THAT IT IS NOT INFLUENCED BY FLUID INVASION. FIELD GEO AGREES TO LET US DRILL AHEAD UNTIL FLUID SWAP IS FINISHED AND DD HAS HAD CHANCE TO GET TWO SURVEY POINTS TO DETERMINE THE ACTUAL RATE OF BUILD OF HIS MOTOR. CONTINUE DRILLING AHEAD. DRILL AHEAD W/ -300 PSI MOTOR WORK AND 1500 LB WOB AT -45 FPH. DRILL AHEAD TO 10150' MD. 02:00 04:00 2.00 DRILL PROD1 AT 10150' MD. MUD SWAP COMPLETE, TWO " , SURVEY POINTS TAKEN. POOH TO SWAP ' OUT RESISTIVITY TOOLS. OPEN EDC AT 9000', CIRCULATE OOH AT 2.36 BPM AT 2840 PSI. 04:00 - 05:00 1.00 ?RILL r` . PROD1 TAG UP AT SURFACE. SWAP OUT RESISTIVITY TOOLS. CHECK BIT - STILL LOOKS BRAND NEW. STAB ON. 05:00 - 07:00 2.00 DRILL PROD1 RBIH W/ LATERAL ASSEMBLY (1.0 DEG BENT MOTOR). PUMPING THROUGH BIT AT 0.1 BPM AT 650 PSI. 07:00 - 07:15 0.25 DRILL _ . PROD1 LOG GR TIE -IN AT RA TAG, ADD 2.5' CTD. 07:15 - 10:00 2.75 DRILL > PROD1 RIH AND TAG BOTTOM AT 10150'. DRILL SAG RIVER LATERAL,,1.5 BPM, 2200 FS, 2400 -2600 PSI, 1-2K WOB, 60R TF, 50-80 FPH, 10 OHM RES, 9.4 ECD. DRILLED TO 10,300'. 10:00 - 10:10 0.17 DRILL PROD1 WIPER TRIP TO 10160'. 10:10 - 11:00 0.83 DRILL PROD1 LOG MAD PASS FROM 10160 - 10000' AT 150 FPH. 11:00 - 11:15 0.25 DRILL PROD1 RIH CLEAN TO BOTTOM. 11:15 - 13:00 I 1.75 DRILL PROD1 DRILL SAG RIVER LATERAL, 1.6 BPM, 2400 FS, 2500 -2800 PSI, 100L TF, 2K WOB, 100 FPH, 9.4 ECD, DRILLED TO 10450'. 13:00 - 13:30 0.50 DRILL PROD1 WIPER TRIP TO WINDOW. CLEAN HOLE. RIH CLEAN TO BOTTOM. 13:30 - 15:00 1.50 DRILL PROD1 DRILL SAG RIVER LATERAL, 1.5 BPM, 2200 FS, 2400 -2800 PSI, 90R TF, 90 FPH, 1 -2K WOB, DRILLED TO 10,593'. 15:00 - 15:30 0.50 DRILL PROD1 WIPER TRIP UP TO WINDOW. CLEAN HOLE. 15:30 - 16:00 0.50 DRILL PROD1 RIG EVACUATION DRILL. H2S DRILL. EVACUATE RIG TO MAIN MUSTER AREA. GOOD RESPONSE FROM CREW. SPOC HAD SIGN IN ROSTER CORRECT. ALL PERSONNEL ACOUNTED FOR. EXPLAINED RESON FOR DRILL. DISCUSSED DIFFERENT WORKERS RESPONSIBILITIES DURING RIG EVACUATION. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP • Page 14 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 16:20 0.33 DRILL PROD1 LOG GR TIE -IN AT RA TAG, +2.5' TO CTD. 16:20 - 16:40 0.33 DRILL PROD1 WIPER TRIP BACK TO BOTTOM. CLEAN HOLE 16:40 - 18:30 1.83 DRILL PROD1 DRILL SAG RIVER LATERAL, 1.5 BPM, 2300 FS, 2400 -2700 PSI, 2K WOB, 90 R TF, 80 FPH, 9.4 ECD. DRILLED TO 10700' 18:30 - 19:10 0.67 DRILL 1 PROD1 WIPER TO SHOE, CLEAN BOTH DIRECTIONS. 19:10 - 21:00 1.83 DRILL PROD1 j DRILL AHEAD FROM 10700' MD. DRILLING AHEAD AT 1.46 BPM AT 2650 PSI (FREESPIN 2325 PSI) W/ 1.7K LB WOB. BHP /ECD /PVT: 4361 PSI / 9.35 PPG / 391. AVERAGE ROP: 85 FPH. IAP: 30 PSI. OAP: 10 PSI. DRILL AHEAD TO 10850' MD. 21:00 - 22:00 1.00 DRILL PROD1 WIPER TO SHOE, CLEAN BOTH DIRECTIONS. UP WEIGHT 32K LB. 22:00 - 23:30 1.50 DRILL PROD1 DRILL AHEAD FROM 10850' MD. DRILLING AHEAD AT 1.42 BPM AT 2750 PSI (2320 PSI FREESPIN) W/ 2.7K LB WOB. BHP /ECD /PVT: 4346 PSI / 9.35 PPG / 396. AVERAGE ROP: 95 FPH. STACKED TO 13200 LB AT SURFACE TO ACHIEVE 2700 LB WOB. DRILL AHEAD TO 10900' MD. LAST -35' HAS BEEN HARD DRILLING, WITH SLIP - STICKING COIL AND SEVERAL STALLS. 23:30 - 00:00 0.50 DRILL PROD1 WIPER TO TUBING. f IAP: 30 PSI OAP: 15 PSI CONTINUED ON REPORT 05/01/10 5/1/2010 00:00 - 01:45 1.75 DRILL PROD1 CONTINUED FROM REPORT 04/30/10 IAP: 30 PSI OAP: 15 PSI CONTINUE WIPER FROM 10900' MD. OPEN EDC AT CASING SHOE. CIRCULATE AT 2.7 BPM AT 3650 PSI. PULL ABOVE LINER TOP, PARK AND CIRCUALTE. ENTIRE WIPER TRIP UP WAS CLEAN. 01:45 - 02:20 0.58 DRILL PROD1 HOLD RIG EVACUATION DRILL. 02:20 - 03:30 1.17 DRILL PROD1 RBIH TO RESUME DRILLING. TIE -IN, CORRECTION OF ( +4'). 03:30 - 05:45 2.25 DRILL PROD1 DRILL AHEAD FROM 10900' MD. 04:30: DRILLING AHEAD AT 10985' MD AT 1.6 BPM AT 3050 PSI W/ 1200 LB WOB. BHP /ECD/PVT: 4392 PSI / 9.35 PPG. AVERAGE ROP: 80 FPH. DRILL AHEAD TO 11051' MD. 05:45 - 07:00 1.25 DRILL PROD1 WIPER TO SHOE. CLEAN HOLE. 07:00 - 09:15 2.25 DRILL PROD1 DRILL SR LAT, 1.6 BPM, 2600 FS, 2700 -3000 PSI, 1.5 -2K WOB, 100R TF, 12 OHM, 9.4 ECD, 80 FPH, DRILLED TO 11200'. 09:15 - 10:30 1.25 DRILL PROD1 WIPER TRIP TO SHOE, CLEAN HOLE. RIH CLEAN TO BOTTOM. 10:30 - 12:45 2.25 DRILL PROD1 DRILL SR LAT, 1.6 BPM, 2600 FS, 2700 -3000 PSI, 1-2K WOB, 100R TF, 80 FPH, 9.4 ECD. DRILLED TO 11350'. 12:45 - 13:45 1.00 DRILL PROD1 WIPER TO WINDOW. CLEAN HOLE. 13:45 - 14:00 0.25 DRILL PROD1 LOG GR TIE -IN AT RA TAG, +4.5'. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 15 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 14:40 0.67 DRILL PROD1 RIH CLEAN TO BOTTOM 14:40 - 17:00 2.33 DRILL 1 PROD1 DRILL SR LAT, 1.6 BPM, 2650 FS, 2800 -3000 PSI, 90L TF, 1-2K WOB, 9.6 ECD, 10 OHM, 80 FPH DRILLED TO 11505' 17:00 - 18:30 1.50 DRILL PROD1 WIPER TRIP TO SHOE. CLEAN HOLE. RIH - .CLEAN TO BOTTOM. 18:30 - 19:15 0.75 DRILL PROD1 DRILL AHEAD FROM 11505' MD TO 11527' MD WITH PARAMETERS AS ABOVE. 19:15 - 00:00 4.75 DRILL PROD1 PU OFF BOTTOM TO ADJUST TOOLFACE TO MAINTAIN 90 LOHS (HITTING END STOP). PULL HEAVY AT 11498' MD. ATTEMPT TO RBIH, CANNOT RBIH. STUCK AT 11498' MD. WOB INDICATOR IS I NOT RESPONSIVE TO STACKING WEIGHT OR OVERPULLING. CIRCULATION PRESSURE IS AT FREESPIN AND IS NOT RESPONSIVE TO STACKING WEIGHT OR OVERPULLING. ABLE TO FREELY ORIENT TOOLSTRING. RETURNS ARE 1:1 AT 1.6 BPM AT 2650 PSI CIRC PRESSURE. TRY RIH AND PUH AT VARYING t ' " PUMP RATES AND PULLING SPEEDS AT VARIOUS TF ORIENTATIONS - j jQ MOVEMENT. 5 CIRCULATE FULL BOTTOMS UP. DOWN ON PUMP. FLOW CHECK WELL - GOOD. ATTEMPT TO LET WELL RELAX. WORK COIL WITH PUMPS OFF AT 20 MINUTES, 40 MINUTES, 60 MINUTES AND 80 MINUTES AFTER SI W/ NO MOVEMENT. AT STATIC ' CONDITIONS: BHP /ECD/PVT: 3767 PSI / 8.35 - , ,� PPG/ 356. COME BACK ONLINE AT 0.3 BPM, RETURNS STILL 1:1. CLOSE CHOKE AND PRESSURE UP CT AND BACKSIDE TO 1300 PSI WHILE RECIPROCATING COIL - NO MOVEMENT. DUMP BACKSIDE PRESSURE W/ CT IN TENSION - NO MOVEMENT. REPEAT WITH CT MOVING UP'ANDW/ CT MOVING DOWN - NO MOVEMENT. CALL FOR DEAD CRUD WHILE WAITING, PUMP HIGH-VIS PILL (20 BBLS). PUMPING AT 1.47 BPM AT 2772 PSI. BHP/ECD/PVT: 4416 PSI / 9.35 PPG / 350. IAP: 10 PSI ' OAP: 15 PSI CONTINUED ON REPORT 05/02/10 5/2/2010 00:00 - 02:45 2.75 DRILL N STUC PROD1 CONTINUED FROM REPORT 05/01/10 IAP: 10 PSI OAP: 15 PSI CIRCULATE 20 BBL HIGH VIS SWEEP. RECIPROCATE CT AT VARIOUS SPEEDS AND VARIOUS PUMP RATES AS HIGH VIS SWEEP COMES OUT OF BIT AND UP OH. NO MOVEMENT. CIRCULATE HIGH VIS SWEEP I TO SURFACE. RETURNS STILL 1:1. WAIT FOR DEAD CRUDE TO ARRIVE. 02:45 - 03:00 0.25 DRILL N STUC PROD1 CRUDE TRANSPORT ARRIVES. PJSM W/ ALL CREW REGARDING PLAN FORWARD. Printed 5/24/2010 1:16:50PM r - North America - ALASKA - BP • Page 16 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM I Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 04:15 1.25 DRILL N STUC PROD1 ONLINE WITH 22 BBL PILL OF DEAD CRUDE DOWN CT. PUMPING AT 0.4 BPM AT 1215 PSI W/ FULL RETURNS. BHP /ECD/PVT: 4322 PSI / 9.46 PPG / 351. PUMP CRUDE TO BIT AT 1.2 BPM AT 2730 PSI WITH 1:1 RETURNS. BHP/ECD /PVT: 4374 PSI / 9.57 PPG / 375 (NOTE PVT INCREASE IS EQUIVALENT TO VOLUME OF CRUDE PUMPED). W)-IEN CRUDE HITS BIT, INCREASE RATE TO 1/7 BPM (1:1 RETURNS) AND HOLD CT IN TENSION. CIRCULATE 7 BBLS CRUDE OUT OF BIT. SHUT DOWN AND LET SOAK FOR 15 MINUTES. OVERPULL - PULL FREE AT 60K LB. UP WEIGHT CLEAN AT 36K. 04:15 - 06:30 2.25 DRILL N STUC PROD1', RECIPROCATE FROM 11420' MD TO 11520' MD CLEAN WITH CRUDE COMING OUT THE BIT AT 1.5 BPM AT 25 BPM. NO WEIGHT BOBBLES OBSERVED. RIH TO 11520' MD AND PERFORM WIPER TO SHOE CHASING CRUDE - OOH AND LEAVING GEOVIS IN OH. ORDERED GEOVIS FROM MI. 06:30 - 08:00 1.50 DRILL, P PROD1 DRILL SAG RIVER LATERAL, 1.6 BPM, 2700 FS, 2900 -3200 PSI, 2K WOB, 120R TF, 90 FPH, 9.4 ECD, DRILLED TO 11610'. 08:00 - 09:00 1.00 DRILL P PROD1 DRILL SAG RIVER LAT, 1.6 BPM, 2700 FS, 2800 -3200 PSI, 2K WOB, 120R TF, 70 FPH, 9.4 ECD, STACKING WT. NOT SLIDING WELL. DRILLED TO 11650'. 09:00 - 10:00 1.00 DRILL -_ _ P PROD1 WIPER TRIP UP TO WINDOW. 10:00 - 10:15 0.25 DRILL P PROD1 LOG GR TIE -IN AT RA TAG. ADD 11'. 10:15 - 11:00 0.75 DRILL P PROD1 RIH CLEAN TO BOTTOM. START GEOVIS FLUID SWAP. 11:00 14:30 3.50 DRILL P PROD1 DRILL SAG RIVER LATERAL, 1.5 BPM, 2750 FS, 2800 -3300 PSI, 2K WOB, 9.4 ECD, 10 OHM, HOT FAILED. DRILLED TO 11758' 14:30 - 18:00 3.50 DRILL N DFAL PROD1 POH TO WINDOW, OPEN EDC, POH WHILE 1 CIRC 2.1 BPM, 3000 PSI. 18:00 - 20:00 2.00 DRILL N DFAL j PROD1 LD BHA. INSPECT BIT, 3:1. REPLACE BIT WITH HUGHES BICENTER. CHECK MOTOR, CHECKS OUT GOOD. RE -RUN SAME MOTOR. REPLACE HOT, GR, RES. MU LATERAL 1 ASSEMBLY WITH 1.0 DEG BENT MOTOR. 20:00 - 00:00 4.00 DRILL N DFAL PROD1 RIH WITH LATERAL DRILLING ASSEMBLY. AT 21:30 - TIE -IN AT 9245' MD, CORRECTION OF ( -5'). CIRCULATING AT 0.32 BPM AT 1330 PSI W/ FULL RETURNS. 22:45 - ENGAGE AT 11758' MD. DRILL AHEAD AT 1.4 BPM AT 3390 PSI W/ 2.6K LB WOB. BHP /ECD /PVT: 4546 PSI / 9.35 PPG / 335. AT MIDNIGHT: DRILLING AHEAD AT 11847' MD AT 1.47 BPM (3200 PSI FREESPIN) AT 3750 PSI W/ 2.5KLB WOB. AVERAGE ROP OF 80 FPH. BHP /ECD /PVT: 4571 PSI / 9.35 PPG / 331. IAP: 10 PSI OAP: 15 PSI CONTINUED ON REPORT 05/03/10. Printed 5/24/2010 1:16:50PM North America - ALASKA - BP Page 17 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/3/2010 00:00 - 01:00 1.00 DRILL P PROD1 CONTINUED FROM REPORT 05/02/10. IAP: 10 PSI OAP: 15 PSI DRILL AHEAD FROM 11847' MD. DRILLING AT 1.47 BPM (3200 PSI FREESPIN) AT 3700 PSI W/ 2.2K WOB AT -80 FPH. BHP /ECD /PVT: 4571 PSI / 9.35 PPG / 331. DRILL AHEAD TO 11904' MD (1.4 BPM AT 3500 PSI, 1.7KLB WOB)_ 01:00 - 02:45 1.75 DRILL P i PROD1 WIPER TO SHOE (CLEAN). 02:45 - 04:30 1.75 DRILL P PROD1 DRILL AHEAD FROM 11905' MD. DRILLING AT 1.49 BPM AT 3620 PSI W/ 1.5K LB WOB, ', AVERAGE ROP 90 FPH. BHP /ECD/PVT: 4573 PSI / 9.35 PPG / 330. ( 0 - DRILLING AHEAD AT 12000' MD AT 1.49 • BPM AT 3650 PSI W/ - 1.6KLB WOB. HAVE HAD TO DO SEVERAL BHA WIPERS OVER LAST 20' 04:30 - 06:45 2.25 DRILL P PROD, P - SR HORT BHA WIPER FROM 12000' MD. GET DIFFERENTIALLY STUCK 2' OFF BOTTOM. MAINTAIN FULL RETURNS - WOB SENSOR AND CIRC PRESSURE ARE - UNRESPONSIVE TO STACKING WEIGHT AND OVERPULLING. WORK PIPE FOR -15 MINUTES AT VARIOUS ' PUMP RATES AND PULLING/RUNNING SPEEDS- NO MOVEMENT. FINALLY PULL FREE AT 1.2 BPM AT 50K LB. WIPER TO CASING SHOE. RIH CLEAN TO BOTTOM. 06:45 - 09:00 2.25 DRILL j P PROD1 DRILL SAG RIVER LATERAL, 1.6 BPM, 3500 f , FS, 3600 -3900 PSI, 2K WOB, 50 FPH, 10 OHM, DRILLED TO 12104'. 09:00 - 10:45 1.75 DRILL P PROD1 WIPER UP TO WINDOW. 10:45 - 11:00 0.25 DRILL P PROD1 LOG GR TIE -IN AT RA TAG, ADD 7'. 11:00 - 12:15 1.25 DRILL P PROD1 RIH CLEAN TO BOTTOM. 12:15 - 14:45 2.50 DRILL P PROD1 DRILL SR LAT,1.5 BPM, 3500 FS, 3600 -3900 PSI, 90L TF, 1-2K WOB, 10.0 ECD, 80 FPH, SWAP TO NEW GEOVIS AT 12150'. BETTER SLIDE AND 300 PSI LOWER FS. DRILLED TO 12245'. 14:45 - 16:45 2.00 DRILL P PROD1 WIPER TRIP TO SHOE. CLEAN HOLE. RIH CLEAN TO BOTTOM. 16:45 - 18:00 1.25 DRILL P PROD1 DRILL LATERAL, 1.6 BPM, 3300 FS, 3400 -3600 PSI, 1-2K WOB, 100L TF, 90 FPH, 9.8 ECD, RES DROPPED FAST AT 12235' FROM 10 TO 5 OHMS. DRILLED TO 12,300'. GEO CALLED TD DUE TO LOW RES ON BOTTOM. 18:00 - 00:00 6.00 DRILL P PROD1 WIPER TRIP TO WINDOW FOR TIE -IN. TIE -IN, CORRECTION OF ( +5'). _ TAG CORRECTED TD OF 12300' MD. PUH LAYING IN LINER RUNNING PILL. PAINT FLAGS AT 10000' MD (BLUE AND ORANGE) AND AT 7700' MD (WHITE AND ORANGE). IAP: 20 PSI OAP: 15 PSI CONTINUED ON REPORT 05/04/10 Printed 5/24/2010 1:16:50PM • North America - ALASKA - BP ip Page 18 of 18 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 4/21/2010 End Date: 5/4/2010 `X3- 00V36 -C (2,211,008.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth! Phase Description of Operations (hr) (ft) 5/4/2010 00:00 - 00:45 0.75 DRILL P PROD1 CONTINUED FROM REPORT 05/03/10 IAP: 20 PSI OAP: 15 PSI PARK COIL AND CIRCULATE. HOLD RIG EVACUATION DRILL. 00:45 - 02:30 1.75 DRILL P PROD1 POOH CIRCULATING AT 1.88 BPM AT 2290 PSI THROUGH OPEN EDC. 02:30 - 03:45 1.25 DRILL P PROD1 LD DRILLING BHA. Printed 5/24/2010 1:16:50PM S North America - ALASKA - BP Page 1 of 1 Operation Summary Report Common Well Name: R -26A AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/4/2010 End Date: 5/4/2010 X3- 00V36 -C (338,732.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/4/2010 03:45 - 04:15 0.50 CASING P RUNPRD PJSM FOR RUNNING 2 -3/8" LINER. 04:15 - 08:00 3.75 CASING P RUNPRD BEGIN RUNNING LINER AS PER SUMMARY. RUN 59 JTS OF 2 -3/8" SLOTTED LINER AND 11 JTS OF SOLID LINER WITH A 9' AL BILLET ON TOP. 10!ID'eTT PUMP OFF GS SPEAR AND COILTRACK. 2 -3/8" LINER TOTAL LENGTH = 2202.58'. BHA OAL = 2242.7' 08:00 - 09:40 1.67 CASING P RUNPRD RIH WITH 2 -3/8" SLOTTED / SOLID LINER. CIRC 0.1 BPM, 900 PSI. 09:40 - 10:00 0.33 CASING P RUNPRD RIH IN OPEN HOLE. CIRC 0.1 BPM, 1000 PSI. DWNWTAT 10100' =21K DWNWTAT11000' = 20K. 10:00 10:15 0.25 CASING P RUNPRD LOG GR TIE -IN AT RA TAG, -9' CORRCTION. 10:15 - 10:45 0.50 CASING P RUNPRD RIH, DWN WT AT 12000' = 16K LAND LINER ON DEPTH AT TO AT 12.300'. UP WT WITH:.LINER = 43.5K. LAND LINER AGAIN AT 12300'. STACK 10K DOWN ON LINER. CIRC 1.9 BPM, 4000 PSI. PICK UP CLEAN OFF TOP OF AL BILLET AT _ WITH 34K UP WT. 10:45 - 12:15 1.50 CASING P I RUNPRD POH 12:15 - 12:30 0.25 CASING P RUNPRD SAFETY MEETING. REVIEW PROCEDURE, HAZARDS AND MITIGATION FOR LAYING OUT BHA AND MfU COILTRAK TURN / RES BHA. 12:30 - 13:00 0.50 CASING P " RUNPRD LAY OUT BTT GS SPEAR AND COILTRAK TOOLS. Printed 5/24/2010 1:17:22PM • . North America - ALASKA - BP Page 1 of 3 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/4/2010 End Date: 5/6/2010 X3- 00V36 -C (1,019,011.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/4/2010 13:00 - 14:00 1.00 DRILL P PROD2 M/U HYC BC RAZOR EDGE RE -RUN BIT, 2.1 DEG MOTOR, RES AND COILTRAK TOOLS. BHA OAL = 68.06' 14:00 - 15:30 1.50 DRILL P PROD2 RIH WITH COILTRAK TURN/ RES BHA #15 CIRC 0.2 BPM, 1200 PSI. 15:30 - 15:45 0.25 DRILL P PROD2 LOG GR TIE -IN AT RA TAG. -6.5' CORRECTION. 15:45 - 16:00 0.25 DRILL P PROD2 IRIH AND TAG TOP OF BILLET AT 10093'. 16:00 18:00 2.00 DRILL P PROD2 IIDRILL OFF OF AL BILLET WITH 140R TF, 1.6 BPM 2550 PSI, 1 FPH TIME DRILL FOR 1 FT, 100# WOB, 100 PSI MOTOR WORK. NO STALLS. I TIME DRILL AT 2 FPH FOR 1 FT. TIME DRILL 4 R-_ - \ k0--(')L‘ FPH THEN 8 FPH. `r-- TIME DRILLED TO 10103'. NO STALLS. 18:00 - 18:30 0.50 DRILL P PROD2 DRILLED TURN SECTION, 1.6 BPM, 1 K WOB, 110R TF, 50 FPH. I . DRILLED TO 10112'. 18:30 - 19:30 1.00 DRILL P PROD2 BACK REAM 140R, REAM DOWN 140R, BACK REAM 100R, REAM DOWN 140R, BACK REAM 180R, REAM DOWN 140R. REAM UP /DWN AT 2 FPM. NO STALLS. 19:30 - 21:15 1.75 . - DRILL . P PROD2 DRILL AHEAD FROM 10112' MD WITH 110R TF. 2850 PSI FS AT 1.57 BPM IN/OUT. 200 -300 PSI MTR WORK. 1.4 -1.9K# DHWOB. PVT: 377 BBLS. IA/OA: 18 PSV15 PSI. ECD: 9.6 PPG DRILL AHEAD TO 10265' MD AND CALL BUILD SECTION. GETTING AVG. OF 32 DLS AND PLAN CALLED FOR 25 DLS. 21:15 - 22:15 1.00 DRILL P PROD2 WIPER TRIP TO ABOVE BILLET. P/U PAST BILLET AT 140R TF. OPEN EDC AND CIRC OOH. 22:15 - 22:45 0.50 DRILL N PROD2 STOP POOH TO INSPECT INJECTOR GRIPPER BLOCKS DUE TO DIMPLES SEEN ON COIL. REPLACED TWO GRIPPER BLOCKS. 22:45 - 00:00 1.25 DRILL P PROD2 ! CONTINUE POOH. REPORT CONTINUED ON 05/05/2010. 5/5/2010 00:00 - 00:15 0.25 DRILL P PROD2 I CONTINUED FROM REPORT 05/04/2010 CONTINUE POOH WITH BUILD BHA. 00:15 - 00:30 0.25 DRILL P PROD2 HOLD PJSM. REVIEW PROCEDURE, HAZARDS AND MITIGATION FOR LID BUILD BHA. 00:30 - 01:00 0.50 DRILL P PROD2 AT SURFACE. UNSTAB COIIL. LD TOOLS AND BLOW DOWN SAME. SET INJECTOR IN BUNG HOLE_ 01:00 - 01:15 0.25 DRILL P PROD2 HOLD PJSM. REVIEW PROCEDURE, HAZARDS AND MITIGATION FOR FUNTION TESTING BOPE. 01:15 - 01:45 0.50 BOPSUR P PROD2 FUNCTION TESTED BOPE FROM SLB DRILLER'S CONSOLE. Printed 5/24/2010 1:17:39PM • North America - ALASKA - BP 0 Page 2 of 3 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/4/2010 End Date: 5/6/2010 X3- 00V36 -C (1,019,011.00 ) Project: Prudhoe Bay Site: PB R Pad Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task I Code NPT NPT Depth Phase Description of Operations (hr) ' (ft) ' 01:45 - 02:00 0.25 DRILL P PROD2 HOLD PJSM. REVIEW PROCEDURE, HAZARDS AND MITIGATION FOR M/U LATERAL BHA. 02:00 - 02:40 0.67 DRILL P PROD2 M/U HCC 2.7" X 3.0" RE -RUN BI-CENTER BIT, 1.0 DEG MOTOR, RES AND COILTRAK TOOLS. 02:40 - 04:15 1.58 DRILL P PROD2 RIH W/ LATERAL BHA. 04:15 - 04:30 0.25 DRILL P PROD2 - -10G TIE -IN. CORRECTION OF ( -8.5') 04:30 - 06:30 2.00 DRILL P PROD2 CONTINUE RIH. SLOW DOWN AND PASS THROUGH BILLET AT AS DRILLED TF. VERY SLIGHT MW SEEN. BOBD. FREESPIN 1.63 BPM AT 2475 PSI. i ENGAGE AT 10265' MD AND BEGIN DRILLING \ AHEAD AT 1.63 BPM AT 2750 PSI W/ 2K# WOB. PVT: 376 BBLS. ROP: 80 FPH. i 05:45 - DRILLING AHEAD AT 10345' MD AT 1.63 BPM AT 2850 PSI W/ 1.4K WOB. PVT: 376. ROP: 100 FPH. DRILLED TO 10400' 06:30 - 07:00 0.50 DRILL P PROD2 WIPER TO SHOE. CLEAN HOLE. RIH CLEAN TO BOTTOM. 07:00 - 09:00 2.00 DRILL ti P PROD2 DRILL SAG RIVER LATERAL, 1.6 BPM, 2500 FS, 2600 -2800 PSI, 1.5K WOB, 90 FPH, 120R 1 TF, 13 OHM, 9.6 ECD, DRILLED TO 10550'. 09:00 - 09:40 0.67 DRILL P � I PROD2 WIPER TO SHOE. CLEAN HOLE. RIH CLEAN TO BOTTOM. 09:40 - 10:30 0.83 DRILL P '. c PROD2 DRILL SR LAT,1.6 BPM, 2550 FS, 2600 -2900 - PSI, 1.5K WOB, 100R TF, 9.7 ECD, DRILLED ACROSS FAULT AT 10559' AND LOST 0.6 BPM AT FIRST. CIRC 1.6 BPM WITH 1.3 BPM RETURNS AT 10590'. I 1.6 BPM WITH 1.4 RETURNS AT 10637'. RETURNS GETTING BETTER. DRILLED TO 10637'. 10:30 - 11:20 0.83 DRILL P PROD2 WIPER TO WINDOW WHILE CHECKING GEO. DETERMINE WE FAULTED INTO UPPER PART OF SAG RIVER AND NEED TO DROP BACK I DOWN TOWARD CENTER OF SAG RIVER. 11:20 - 11:45 0.42 DRILL P PROD2 I LOG GR TIE -IN. ADD 3.5'. 11:45 - 12:00 0.25 DRILL P PROD2 RIH CLEAN TO BOTTOM. 1 12:00 - 13:30 1.50 DRILL P PROD2 DRILL SR LAT,1.6 BPM, 1.5 RETURNS, 2600FS, 2700 -3100 PPSI, 1 -2K WOB, 160L TF, 120 FPH, DRILLED TO 10800'. 13:30 - 14:20 0.83 DRILL P PROD2 WIPER TRIP TO SHOE. CLEAN HOLE. RIH CLEAN TO BOTTOM. 14:20 - 15:40 1.33 DRILL P . PROD2 DRILL SG LAT, 1.6 BPM, 3550 FS, 2700 -3000 PSI, 90L TF, 2 K WOB, 12 OHMS, 9.7 ECD. DRILLED TO 10950'. 15:40 - 16:45 1.08 DRILL P PROD2 WIPER TRIP TO SHOE. CLEAN HOLE. RIH CLEAN TO BOTTOM. 16:45 - 18:45 2.00 DRILL P PROD2 DRILL SR LAT, 1.6 BPM, 1.5 RETURNS, 2K WOB, 100 FPH, 160L TF, 10 OHMS, 9.7 ECD. DRILLED TO 11100' MD. 18:45 - 19:40 0.92 DRILL P PROD2 WIPER TRIP TO WINDOW. CLEAN HOLE. 19:40 - 20:00 0.33 DRILL P PROD2 LOG GR TIE -IN. ADD 1.0'. Printed 5/24/2010 1:17:39PM • North America - ALASKA - BP Page 3 of 3 Operation Summary Report Common Well Name: R -26A AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/4/2010 End Date: 5/6/2010 X3- 00V36 -C (1,019,011.00 ) Project: Prudhoe Bay Site: PB R Pad J 'I Rig Name /No.: NORDIC 2 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA I UWI: Active Datum: 46 : 26A 2/6/1986 00:00 @72.90ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:00 - 21:00 1.00 DRILL P PROD2 RIH CLEAN TO BOTTOM. 21:00 - 22:45 1.75 DRILL P PROD2 DRILL SR LAT,1.6 BPM, 2675 FS, FULL RETURNS, 3000 PSI, 1 -2K WOB, 90L TF, 9.7 ECD, 120 FPH. DRILLED TO 11250' MD. 22:45 - 00:00 1.25 DRILL P PROD2 WIPER TRIP TO SHOE. CLEAN HOLE. RIH CLEAN TO BOTTOM. 5/6/2010 00:00 - 00:15 0.25 DRILL P PROD2 RIH CLEAN TO BOTTOM FOLLOWING WIPER. 00:15 - 01:45 1.50 DRILL P PROD2 DRILL SR LAT, 1.6 BPM, 2670 FS, 3050 PSI, 1.5 -2K WOB, 90L TF, 9.8 ECD, 110 FPH, 10 OHMS. DRILLED TO 11400' MD. 01:45 - 03:30 1.75 DRILL P PROD2 WIPER TO SHOE. CLEAN HOLE. RIH CLEAN TO BOTTOM. 03:30 - 05:10 1.67 DRILL P ' PROD2 , DRILL SR LAT,1.6 BPM, 2670 FS, 3000 PSI, 1.5 -2K WOB, 170L TF, 9.8 ECD, 100 FPH. DRILLED TO.11550' MD. 05:10 - 06:15 1.08 DRILL P PROD2 WIPER TO WINDOW. CLEAN HOLE. 06:15 - 06:30 0.25 DRILL _ P PROD2 LOG GR TIE -IN AT RA TAG, ADD 7'. 06:30 - 07:40 1.17 DRILL P PROD2 RIH CLEAN TO BOTTOM. CIRC 1.3 BPM, 1.5 BPM RETURNS. 07:40 10:10 2.50 DRILL P PROD2 I DRILL SAG RIVER LATERAL,1.6 BPM, 1.6 BPM RETURNS, 2600 PSI FS, 2700 -3000 PSI, 2 K WOB, 120 FPH, 100L TF, 12 OHMS, 9.7 ECD. STACKING WT. DRILLED TO 11705' 10:10 - 12:00 1.83 DRILL , P _ PROD2 WIPER TRIP CLEAN TO SHOE. RIH CLEAN TO BOTTOM. 12:00 13:00 1.00 DRILL. P PROD2 DRILL SAG RIVER LATERAL, 1.5 BPM, 1.5 RETURNS, 2500 FS, 2700 -2900 PSI, 2K WOB, 80L TF, 11 OHMS, 9.7 ECD, STACK WT. DRILLEC TO 11775' 13:00 - 13:15 0.25 DRILL P PROD2 SHORT WIPER TO GET COIL SLIDING. CIRC NEW GEOVIS OFF VAC TO BIT. 13:15 - 14:20 1.08 DRILL P PROD2 DRILL LATERAL, 1.5 BPM, FULL RETURNS, 2K WOB, 80L TF, 11 OHMS, 9.7 ECD DRILLED TO TD OF 11850'. 14:20 - 15:45 1.42 DRILL P PROD2 WIPER TRIP TO WINDOW. 15:45 - 16:00 0.25 DRILL P PROD2 LOG GR TIE -IN. ADD 6.5'. 16:00 - 17:00 1.00 DRILL P PROD2 WIPER RIH TO TD. CIRC NEW GEOVIS LINER PILL TO BIT. TAG FINAL TD AT 1 1.850' 17:00 - 20:00 3.00 DRILL P PROD2 POH WHILE LAYING IN NEW HIGH VIS GEOVIS LINER PILL CIRCULATE AT 1.3 BPM WHILE PULLING AT 50 FPM. OPEN EDC AT 8000' AND CONTINUE POOH CIRCULATING AT 2.3 BPM. 20:00 - 21:00 1.00 DRILL P PROD2 L/D DRILLING BHA. Printed 5/24/2010 1:17:39PM i • North America - ALASKA - BP Page 7 of 2 Operation Summary Report Common Well Name: R -26A AFE No Event Type: COM- ONSHORE (CON) I Start Date: 5/6/2010 End Date: 5/7/2010 ;X3- 00V36 -C (449,018.00 ) ! I Project: Prudhoe Bay Site: PB R Pad Rig Name/No.: NORDIC 2 1 Spud Date/Time: 1/20/1998 12:00:00AM Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 Q72.9ft (above Mean Sea Level) Date 1 From - To Hrs Task Code NPT NPT Depth Phase 1 Description of Operations (hr) I (ft) 5/6/2010 1 21:00 - 21:15 0.25 CASING P RUNPRD HOLD PJSM. REVIEW PROCEDURE, HAZARDS AND MITIGATION FOR RUNNING 2 -3/8" LINER. 121:15 - 23:45 2.50 CASING P RUNPRD BEGINE RUNNING LINER AS PER SUMMARY. 1 RUN 55 JTS OF 2 -3/8" SLOTTED LINER AND 5 I i .UIC CIF 7 - 3/8" SOLID LINER. M/U UT PUMP OFF GS SPEAR AND COILTRAK. I 12 -3/8" LINER TOTAL LENGTH = 1891.61'. j _BHA OAL = 1931.76'. 1 23:45 - 00:00 0.25 CASING P RUNPRD RIH W/ 2 -3/8" SLOTTED /SOLID LINER. CIRC 0.3 BPM AT 900 PSI. I j • 1 CONTINUED ON DAILY REPORT 05/07/2010 5!7/2010 1 00:00 - 01:30 1.50 CASING 1 P 1 I RUNPRD CONTINUE RIH WITH 2 -3/8" SLOTTED /SOLID I I I 1 I 1 LINER. CIRCULATE 0.3 BPM AT 1000 OSU. DWN I 1 1WT AT 10,000' 22.5K 01:30 - 02:00 0.50 CASING P T RUNPRD FLOG GR TIE -IN MAKE 8' CORRECTION. i 02:00 - 02:30 0.50 CASING P RUNPRD CONTINUE RIH. LAND LINER ON DEPTH AT TD 1 AT 11,850' MD. UP WT WITH LINER = 39K. LAND LINER AGAIN AT 11,850' MD. STACK 10K DOWN ON LINER. 1 1 ;CIRCULATE 2.1 BPM, 4100 PSI. PICK UP CLEAN OFF TOP OF DEPLOYMENT !SLEEVE AT 9958' WITH 32 K UP WT. 1- ! 02:30 - 03:15 0.75 CASING ! P RUNPRD WAIT ON KCL. 03:15 - 05:45 2.50 CASING P 1 RUNPRD 1 POOH DISPLACING WELL TO 2% KCL WATER TO 1 2500' MD. . 05:45 - 06:45 1.00 CASING P RUNPRD FREEZE PROTECT WELL FROM 2500' MD TO 1 i SURFACE. 06:45 - 07:30 0.75 CASING P RUNPRD ! LAY OUT LINER RUNNING BHA. 1 07:30 - 08:00 0.50 WI-ISUR I P I POST GREASE TREE VALVES WITH GREASE CREW. 1 08:00 - 08:30 1 0.50 WHSUR I P ! POST SET BPV WITH BPV CREW. i 08:30 - 10:00 1.50 RIGD P POST PULL COIL STUB BACK TO REEL AND SECURE IT. 10:00 - 10:30 I 0.50 RIGD P POST OFFLOAD LINER FROM PIPESHED. •10:30 - 12 :30 2.00 RIGD I P POST REMOVE INJECTER HEAD PACKOFF AND GUIDE ARCH. i PREP GUIDE ARCH TO PICK WITH CRANE. 12:30 - 15:30 3.00 1 RIGD P I I POST N/D BOPE. CHANGE OUT KILL LINE HARDLINE 1 1 WITH KILL LINE HOSE. 1 N/U TREE CAP AND PRESS TEST TO 3500 PSI WITH DIESEL. 15:30 - 15:45 0.25 DEMOB P POST SAFETY MEETING. REVIEW PROCEDUE, 1 HAZARDS AND MITIGATION FOR MOVING RIG I OFF OF WELL. 15:45 - 17:00 1.25 l DEMOB P POST I MOVE RIG OFF OF WELL AND PLACE IN CENTER 1 I OF PAD FOR CRANE WORK. _ Printed 7/7/2010 11:18:58AM a • North America - ALASKA - BP Page 2 of 2 Operation Summary Report Common Well Name: R -26A E AFE No Event Type: COM- ONSHORE (CON) Start Date: 5 /6/2010 End Date: 5/7/2010 X3- 00V36 -C (449,018.00 ) Project: Prudhoe Bay 1 Site: PB R Pad Rig Name/No.: NORDIC 2 1 Spud Date/Time: 1/20/1998 12:00:00AM I Rig Release: 5/7/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 46 : 26A 2/6/1986 00:00 ©72.9ft (above Mean Sea Level) Date From - To Hrs Task Code 1 NPT I NPT Depth Phase 1 Description of Operations (hr) (ft) 17:00 17:15 0.25 DEMOB ; P I POST SAFETY MEETING. REVIEW PROCEDURE, HAZARDS AND MITIGAION FOR PICKING OLD . INJECTER HEAD AND PLACING NEW ONE ON RIG FLOOR. 17:15 - 22:00 4.75 DEMOB P POST PICK 480 LJECTER HEAD OFF RIG WITH 150 TON PEAK CRANE. PLACE ON TRAILER. PICK NEW 5100 INJECTER HEAD AND GOOSENECK WITH CRANE AND PLACE ON RIG FLOOR. PICK ECKEL I POWER TONGS OFF RIG WITH CRANE. 22:00 - 00:00 2.00 DEMOB P I POST CONTINUE RIGGING DOWN AND PREP FOR 1 I MOVE. RELEASE RIG FROM R -26B tAT MIDNIGHT. L — I I _ , ALL SUBSEQUENT REPORTS ON WELL 15 -30B. 1 Printed 7/7/2010 11:18:58AM • BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB R Pad R -26A - Slot 26A R -26B Survey: MWD Survey Report - Geographic 11 May, 2010 � bp • • N.ill RAKER HUGHES Survey Report - Geographic 0 bp LNTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 © 72.90ft (generic drilling Well: R -26A North Reference: True Wellbore: R -26B Survey Calculation Method: Minimum Curvature Design: R -26B Database: EDM .16 - Anc Prod - WH24P Project Prudhoe Bay, GPB, PRUDHOE BAY Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor I Site PB R Pad, TR -12 -13 Site Position: Northing: 5,975,706.22ft Latitude: 70° 20' 29.100 N ' From: Map Easting: 637,446.42ft Longitude: 148° 53' 4.328 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 1.05 ° Well R -26A API No 500292154700 Well Position +N / -S 0.00 ft Northing: 5,976,732.49 ft Latitude: 70° 20' 39.340 N j +E / -W 0.00 ft Easting: 636,626.41 ft Longitude: 148° 53' 27.733 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00 ft Wellbore R -26B API No 500292154701 Magnetics Model Name Sample Date Declination Dip Angle Field Strength r) r) (nT) BGGM2009 9/9/2009 22.44 80.94 57,668 - - - - -- -- --- Design R -26B Audit Notes: Version: Phase: ACTUAL Tie On Depth: 9,200.00 Vertical Section: Depth From (TVD) +N/-S +E / -W Direction (ft) (ft) (ft) ( °) 52.90 0.00 0.00 54.23 Survey Program Date: 5/10/2010 From To (ft) (ft) Survey ( Wellbore) Tool Name Description 100.00 9,200.00 1 : Sperry-Sun BOSS gyro multi (R -26A) BOSS -GYRO Sperry-Sun BOSS gyro multishot 9,210.00 12,300.00 MWD (R -26B) MWD MWD - Standard 5/11/2010 1:53:18PM Page 2 COMPASS 2003.16 Build 71 • • BAKER ` HUGHES Survey Report - Geographic 0 bP LNTEQ Company: North America - ALASKA - BP Local Co - ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic driilirn Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R - 26A North Reference: True Wellbore: R - 26B Survey Calculation Method: Minimum Curvature Design: R - 26B Database: EDM .16 - Anc Prod - WH24P 1 Survey I Measured Vertical Map Map Depth Inclination Azimuth Depth +N / -S +E/ -W Northing Easting I (ft) (°) (^) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 9,200.00 8.00 14.30 8,831.46 1,850.83 297.86 5,978,588.30 636,890.47 70° 20' 57.543 N 148 53' 19.029 W TIP 9,210.00 8.06 13.78 8,841.36 1,852.18 298.20 5,978,589.66 636,890.78 70° 20' 57.556 N 148° 53' 19.019 W KOP 9,230.21 11.24 12.00 8,861.28 1,855.49 298.95 5,978,592.97 636,891.47 70° 20' 57.589 N 148° 53' 18.997 W j 9,258.85 21.13 10.80 8,888.76 1,863.31 300.50 5,978,600.82 636,892.88 70° 20' 57.666 N 148° 53' 18.952 W 9,275.11 26.82 9.90 8,903.61 1,869.80 301.68 5,978,607.34 636,893.94 70° 20' 57.729 N 148° 53' 18.917 W i 9,293.58 33.02 10.64 8,919.61 1,878.86 303.33 5,978,616.43 636,895.42 70° 20' 57.819 N 148° 53' 18.869 W' 9,309.38 38.29 11.30 8,932.44 1,887.90 305.08 5,978,625.49 636,897.01 70° 20' 57.907 N 148° 53' 18.818 W 9,324.56 43.83 13.77 8,943.88 1,897.63 307.26 5,978,635.26 636,899.01 70° 20' 58.003 N 148° 53' 18.754 W 9,341.12 49.70 15.59 8,955.22 1,909.29 310.32 5,978,646.97 636,901.86 70° 20' 58.118 N 148° 53' 18.665 W 9,356.44 54.79 19.23 8,964.60 1,920.84 313.96 5,978,658.58 636,905.29 70° 20' 58.231 N 148° 53' 18.558 W 9,379.66 62.06 23.42 8,976.76 1,939.23 321.17 5,978,677.11 636,912.16 70° 20' 58.412 N 148° 53' 18.348 W I 9,408.19 71.46 26.40 8,988.00 1,962.97 332.22 5,978,701.04 636,922.78 70° 20' 58.646 N 148° 53' 18.025 W 9,431.47 78.88 29.27 8,993.96 1,982.85 342.73 5,978,721.11 636,932.92 70° 20' 58.841 N 148° 53' 17.718 W 9,461.61 89.11 32.91 8,997.11 2,008.48 358.19 5,978,747.01 636,947.91 70° 20' 59.093 N 148° 53' 17.266 W 9,483.89 96.81 36.28 8,995.96 2,026.78 370.81 5,978,765.53 636,960.19 70° 20' 59.273 N 148° 53' 16.897 W 9,505.46 101.91 41.84 8,992.45 2,043.30 384.21 5,978,782.29 636,973.28 70° 20' 59.436 N 148° 53' 16.505 W 9,537.10 104.82 51.98 8,985.12 2,064.30 406.64 5,978,803.70 636,995.33 70° 20' 59.642 N 148° 53' 15.850 W , 1 9,561.94 105.34 61.61 8,978.64 2,077.42 426.68 5,978,817.19 637,015.13 70° 20' 59.771 N 148° 53' 15.264 W 9,586.27 105.09 71.21 8,972.24 2,086.81 448.17 5,978,826.96 637,036.44 70° 20' 59.864 N 148° 53' 14.636 W 9,610.99 104.61 79.89 8,965.89 2,092.76 471.28 5,978,833.33 637,059.44 70° 20' 59.922 N 148° 53' 13.961 W 9,640.99 104.79 92.13 8,958.25 2,094.78 500.17 5,978,835.87 637,088.28 70° 20' 59.942 N 148° 53' 13.116 W 9,670.75 105.90 97.82 8,950.37 2,092.29 528.74 5,978,833.91 637,116.89 70° 20' 59.917 N 148° 53' 12.281 W 9,700.94 105.20 102.43 8,942.28 2,087.18 557.37 5,978,829.32 637,145.60 70° 20' 59.867 N 148° 53' 11.445 W 9,730.24 104.86 106.30 8,934.67 2,080.16 584.77 5,978,822.80 637,173.13 70° 20' 59.798 N 148° 53' 10.644 W 9,760.50 105.21 110.65 8,926.82 2,070.90 612.48 5,978,814.05 637,201.00 70° 20' 59.707 N 148° 53' 9.834 W 9,790.33 104.54 114.44 8,919.16 2,059.85 639.10 5,978,803.49 637,227.82 70° 20' 59.598 N 148° 53' 9.056 W 9,820.05 104.81 112.19 8,911.63 2,048.47 665.51 5,978,792.59 637,254.42 70° 20' 59.486 N 148° 53' 8.285 W 9,851.93 103.63 107.48 8,903.80 2,037.99 694.57 5,978,782.64 637,283.67 70° 20' 59.383 N 148° 53' 7.435 W 9,880.16 102.95 104.88 8,897.31 2,030.34 720.95 5,978,775.47 637,310.18 70° 20' 59.308 N 148° 53' 6.664 W 9,913.48 103.74 100.66 8,889.61 2,023.17 752.56 5,978,768.88 637,341.92 70° 20' 59.238 N 148° 53' 5.741 W 9,942.82 103.12 96.07 8,882.79 2,019.02 780.79 5,978,765.25 637,370.21 70° 20' 59.197 N 148° 53' 4.916 W 9,974.19 102.10 93.53 8,875.94 2,016.46 811.29 5,978,763.25 637,400.75 70° 20' 59.171 N 148° 53' 4.024 W 10,000.67 101.58 90.22 8,870.51 2,015.61 837.19 5,978,762.87 637,426.66 70° 20' 59.163 N 148° 53' 3.268 W ' 10,013.91 100.80 88.90 8,867.94 2,015.71 850.17 5,978,763.21 637,439.64 70° 20' 59.164 N 148° 53' 2.888 W j 10,045.00 99.46 82.76 8,862.47 2,017.94 880.68 5,978,765.99 637,470.10 70° 20' 59.186 N 148° 53' 1.996 W' 2 - 7/8" 10,052.14 99.14 81.36 8,861.31 2,018.91 887.66 5,978,767.09 637,477.06 70° 20' 59.196 N 148° 53' 1.792 W 10,084.45 96.27 82.45 8,856.98 2,023.42 919.36 5,978,772.18 637,508.67 70° 20' 59.240 N 148° 53' 0.866 W 10,112.77 92.89 80.57 8,854.72 2,027.59 947.27 5,978,776.85 637,536.50 70° 20' 59.281 N 148° 53' 0.050 W 10,141.61 90.21 83.73 8,853.94 2,031.53 975.82 5,978,781.31 637,564.97 70° 20' 59.319 N 148° 52' 59.216 W 1 10,173.20 91.01 87.02 8,853.60 2,034.07 1,007.31 5,978,784.43 637,596.40 70° 20' 59.344 N 148° 52' 58.296 W 10,202.92 93.87 89.54 8,852.34 2,034.96 1,036.98 5,978,785.86 637,626.05 70° 20' 59.353 N 148° 52' 57.429 W 10,233.16 93.81 93.87 8,850.31 2,034.07 1,067.13 5,978,785.51 637,656.21 70° 20' 59.344 N 148° 52' 56.548 W 10,263.12 91.96 97.98 8,848.80 2,030.98 1,096.89 5,978,782.97 637,686.01 70° 20' 59.314 N 148° 52' 55.678 W ' 10,293.19 89.94 96.42 8,848.30 2,027.21 1,126.71 5,978,779.74 637,715.90 70° 20' 59.277 N 148° 52' 54.806 W 10,323.13 90.21 92.28 8,848.27 2,024.94 1,156.56 5,978,778.02 637,745.78 70° 20' 59.254 N 148° 52' 53.934 W 10,353.17 91.07 87.76 8,847.93 2,024.93 1,186.59 5,978,778.55 637,775.81 70° 20' 59.254 N 148° 52' 53.057 W 10,383.04 93.13 84.09 8,846.83 2,027.05 1,216.36 5,978,781.22 637,805.53 70° 20' 59.275 N 148° 52' 52.187 W 10,412.60 93.22 79.96 8,845.20 2,031.14 1,245.58 5,978,785.84 637,834.67 70° 20' 59.315 N 148° 52' 51.333 W 10,443.18 93.59 75.42 8,843.38 2,037.65 1,275.40 5,978,792.89 637,864.36 70° 20' 59.379 N 148° 52' 50.461 W 1 10,473.01 91.81 71.50 8,841.97 2,046.13 1,303.95 5,978,801.89 637,892.75 70° 20' 59.463 N 148° 52' 49.627 W 10,503.17 91.72 67.18 8,841.04 2,056.76 1,332.15 5,978,813.03 637,920.75 70° 20' 59.567 N 148° 52' 48.803 W 10,532.11 90.74 62.95 8,840.42 2,068.96 1,358.38 5,978,825.70 637,946.76 70° 20' 59.687 N 148° 52' 48.036 W 5/11/2010 1:53:18PM Page 3 COMPASS 2003.16 Build 71 s • r'. BAKER HUGHES Survey Report - Geographic 0 bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling Well: R -26A North Reference: True Welibore: R -26B Survey Calculation Method: Minimum Curvature Design: R -26B Database: EDM .16 - Anc Prod - WH24P Survey -- - -- - -- Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/ -W Northing Easting (ft) (°) ( °) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 10,563.27 90.64 58.20 8,840.05 2,084.26 1,385.51 5,978,841.50 637,973.60 70° 20' 59.837 N 148° 52' 47.243 W 10,594.00 88.83 54.76 8,840.19 2,101.23 1,411.13 5,978,858.93 637,998.90 70° 21' 0.004 N 148° 52' 46.494 W 10,622.78 86.84 56.83 8,841.28 2,117.39 1,434.91 5,978,875.52 638,022.38 70° 21' 0.163 N 148° 52' 45.799 W 10,652.90 87.21 60.25 8,842.84 2,133.09 1,460.56 5,978,891.68 638,047.74 70° 21' 0.318 N 148° 52' 45.049 W 10,683.23 87.33 63.32 8,844.29 2,147.41 1,487.26 5,978,906.49 638,074.17 70° 21' 0.458 N 148° 52' 44.269 W 10,713.07 88.34 67.02 8,845.41 2,159.93 1,514.31 5,978,919.50 638,100.99 70° 21' 0.581 N 148° 52' 43.478 W 10,742.93 89.11 71.05 8,846.08 2,170.61 1,542.18 5,978,930.68 638,128.66 70° 21' 0.686 N 148° 52' 42.664 W 10,779.26 90.31 75.38 8,846.26 2,181.10 1,576.96 5,978,941.80 638,163.23 70° 21' 0.789 N 148° 52' 41.648 W 10,803.06 89.88 78.55 8,846.22 2,186.47 1,600.14 5,978,947.59 638,186.31 70° 21' 0.842 N 148° 52' 40.970 W 10,833.10 89.02 82.30 8,846.51 2,191.46 1,629.76 5,978,953.12 638,215.83 70° 21' 0.891 N 148° 52' 40.105 W 10,866.36 88.62 87.01 8,847.20 2,194.56 1,662.85 5,978,956.82 638,248.86 70° 21' 0.922 N 148° 52' 39.137 W 10,893.25 89.23 90.67 8,847.70 2,195.10 1,689.73 5,978,957.85 638,275.72 70° 21' 0.927 N 148° 52' 38.352 W 10,925.41 85.33 91.82 8,849.23 2,194.41 1,721.84 5,978,957.74 638,307.84 70° 21' 0.920 N 148° 52' 37.413 W 10,970.89 87.45 86.29 8,852.09 2,195.16 1,767.20 5,978,959.32 638,353.17 70° 21' 0.927 N 148° 52' 36.088 W 11,003.56 87.51 81.25 8,853.53 2,198.70 1,799.64 5,978,963.45 638,385.54 70° 21' 0.962 N 148° 52' 35.140 W 11,030.96 85.82 78.34 8,855.12 2,203.54 1,826.55 5,978,968.79 638,412.36 70° 21' 1.010 N 148° 52' 34.353 WI 11,060.92 86.66 76.33 8,857.09 2,210.10 1,855.72 5,978,975.87 638,441.40 70° 21' 1.074 N 148° 52' 33.501 W 11,092.07 87.42 80.09 8,858.70 2,216.45 1,886.17 5,978,982.78 638,471.72 70° 21' 1.136 N 148° 52' 32.611 W 11,121.01 86.84 83.06 8,860.15 2,220.69 1,914.76 5,978,987.53 638,500.23 70° 21' 1.178 N 148° 52' 31.775 W 11,151.15 86.37 87.26 8,861.93 2,223.22 1,944.73 5,978,990.62 638,530.15 70° 21' 1.203 N 148° 52' 30.899 W 11,180.86 86.90 90.93 8,863.68 2,223.69 1,974.38 5,978,991.62 638,559.78 70° 21' 1.207 N 148° 52' 30.033 W 11,211.06 86.59 94.21 8,865.39 2,222.34 2,004.50 5,978,990.82 638,589.91 70° 21' 1.194 N 148° 52' 29.153 W 11,240.96 87.51 97.90 8,866.93 2,219.19 2,034.18 5,978,988.21 638,619.65 70° 21' 1.163 N 148° 52' 28.285 W 11,271.06 89.26 101.46 8,867.78 2,214.13 2,063.84 5,978,983.70 638,649.39 70° 21' 1.113 N 148° 52' 27.419 W 11,300.89 88.59 105.35 8,868.34 2,207.22 2,092.84 5,978,977.32 638,678.52 70° 21' 1.045 N 148° 52' 26.571 W 11,331.03 88.59 108.76 8,869.08 2,198.38 2,121.65 5,978,969.01 638,707.47 70° 21' 0.958 N 148° 52' 25.729 W 11,361.03 88.37 111.34 8,869.88 2,188.10 2,149.81 5,978,959.24 638,735.82 70° 21' 0.857 N 148° 52' 24.906 W 11,391.82 88.03 106.46 8,870.85 2,178.14 2,178.92 5,978,949.81 638,765.10 70° 21' 0.759 N 148° 52' 24.056 W 11,422.96 87.08 102.16 8,872.18 2,170.45 2,209.06 5,978,942.67 638,795.37 70° 21' 0.683 N 148° 52' 23.175 W 11,451.04 87.45 97.15 8,873.52 2,165.75 2,236.70 5,978,938.47 638,823.10 70° 21' 0.637 N 148° 52' 22.367 W 11,481.07 87.45 93.65 8,874.85 2,162.92 2,266.56 5,978,936.20 638,853.00 70° 21' 0.609 N 148° 52' 21.494 W 11,512.25 86.93 87.58 8,876.38 2,162.59 2,297.69 5,978,936.43 638,884.13 70° 21' 0.606 N 148° 52' 20.585 W 11,545.79 88.34 82.08 8,877.77 2,165.61 2,331.05 5,978,940.06 638,917.42 70° 21' 0.635 N 148° 52' 19.610 W 11,572.19 88.28 78.38 8,878.55 2,170.09 2,357.05 5,978,945.01 638,943.34 70° 21' 0.679 N 148° 52' 18.850 W 11,602.08 89.02 76.67 8,879.25 2,176.54 2,386.23 5,978,951.99 638,972.39 70° 21' 0.743 N 148° 52' 17.997 W 11,633.12 88.19 79.16 8,880.01 2,183.04 2,416.57 5,978,959.04 639,002.60 70° 21' 0.806 N 148° 52' 17.110 W 11,663.52 87.85 82.48 8,881.06 2,187.88 2,446.56 5,978,964.43 639,032.50 70° 21' 0.854 N 148° 52' 16.234 W 11,691.67 86.99 87.13 8,882.32 2,190.43 2,474.56 5,978,967.49 639,060.44 70° 21' 0.879 N 148° 52' 15.416 W 11,722.35 87.05 92.53 8,883.92 2,190.52 2,505.18 5,978,968.14 639,091.06 70° 21' 0.880 N 148° 52' 14.521 W 11,752.67 90.31 92.22 8,884.62 2,189.26 2,535.46 5,978,967.43 639,121.36 70° 21' 0.867 N 148° 52' 13.636 W ' 11,783.74 93.95 91.89 8,883.46 2,188.15 2,566.49 5,978,966.88 639,152.39 70° 21' 0.856 N 148° 52' 12.729 W 11,813.42 94.57 96.88 8,881.26 2,185.89 2,595.99 5,978,965.16 639,181.93 70° 21' 0.834 N 148° 52' 11.867 W 11,842.84 91.29 99.72 8,879.75 2,181.65 2,625.06 5,978,961.45 639,211.06 70° 21' 0.792 N 148° 52' 11.017 W 11,878.85 90.37 104.92 8,879.23 2,173.97 2,660.22 5,978,954.41 639,246.36 70° 21' 0.716 N 148° 52' 9.990 W 11,901.53 90.15 107.73 8,879.13 2,167.59 2,681.98 5,978,948.44 639,268.23 70° 21' 0.654 N 148° 52' 9.354 W 11,937.89 89.60 105.16 8,879.21 2,157.30 2,716.85 5,978,938.78 639,303.28 70° 21' 0.552 N 148° 52' 8.335 W 11,965.50 89.23 99.92 8,879.49 2,151.31 2,743.79 5,978,933.28 639,330.33 70° 21' 0.493 N 148° 52' 7.548 W 11,996.24 90.15 96.10 8,879.66 2,147.03 2,774.23 5,978,929.55 639,360.83 70° 21' 0.451 N 148° 52' 6.658 W 12,022.93 90.31 92.68 8,879.55 2,144.98 2,800.83 5,978,928.00 639,387.47 70° 21' 0.431 N 148° 52' 5.881 W 12,055.31 89.66 88.93 8,879.56 2,144.53 2,833.21 5,978,928.13 639,419.84 70° 21' 0.426 N 148° 52' 4.935 W 12,082.73 90.31 84.64 8,879.57 2,146.07 2,860.58 5,978,930.17 639,447.17 70° 21' 0.441 N 148° 52' 4.135 W 12,112.73 89.97 82.40 8,879.49 2,149.45 2,890.38 5,978,934.10 639,476.91 70° 21' 0.474 N 148° 52' 3.264 W 12,172.74 90.92 74.47 8,879.03 2,161.47 2,949.12 5,978,947.18 639,535.42 70° 21' 0.592 N 148° 52' 1.547 W 12,202.76 90.68 70.38 8,878.61 2,170.53 2,977.73 5,978,956.77 639,563.86 70° 21' 0.681 N 148° 52' 0.711 W 12,232.84 88.53 65.12 8,878.81 2,181.92 3,005.56 5,978,968.65 639,591.47 70° 21' 0.793 N 148° 51' 59.897 W 5/11/2010 1:53:18PM Page 4 COMPASS 2003.16 Build 71 • • • VA 1111 BAKER HUGHES Survey Report - Geographic 0 bp INTEQ Company: North America - ALASKA - BP Local Co - ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling Well: R - 26A North Reference: True Welibore: R - 26B Survey Calculation Method: Minimum Curvature Design: R - 26B Database: EDM .16 - Anc Prod - WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N /-S +E / -W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,255.78 88.53 65.86 8,879.40 2,191.43 3,026.43 5,978,978.55 639,612.16 70° 21' 0.887 N 148° 51' 59.287 W 12,300.00 88.53 65.86 8,880.54 2,209.51 3,066.77 5,978,997.36 639,652.16 70° 21' 1.064 N 148° 51' 58.108 W TD - 2 -3/8" 1 5/11/2010 1:53:18PM Page 5 COMPASS 2003.16 Build 71 • • MEW BAKER HUGHES Survey Report - Geographic 0 bp 1NTEQ Company: North America - ALASKA - BP Local Co - ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillini Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillini Well: R - 26A North Reference: True Wellbore: R - 26B Survey Calculation Method: Minimum Curvature Design: R - 26B Database: EDM .16 - Anc Prod - WH24P 1 Targets 1 Target Name - hit/miss target Dip Angle Dip Dir. TVD +N / -S +E/ -W Northing Easting - Shape P ( °) ( °) (ft) (ft) (ft) (ft ) (ft ) Latitude Longitude a g R -26BL1 Polygon 0.00 0.00 0.00 2,123.55 1,013.54 5,978,874.00 637,601.00 70° 21' 0.224 N 148° 52' 58.113 W - survey misses target center by 8847.04ft at 10501.24ft MD (8841.10 TVD, 2056.02 N, 1330.37 E) - Polygon Point 1 0.00 2,123.55 1,013.54 5,978,874.00 637,601.00 Point 2 0.00 1,304.56 1,111.64 5,978,057.00 637,714.00 Point 3 0.00 1,062.43 1,225.25 5,977,817.00 637,832.00 Point 4 0.00 956.47 1,715.44 5,977,720.00 638,324.00 Point 5 0.00 1,031.68 2,583.02 5,977,811.00 639,190.00 Point6 0.00 1,209.06 2,564.25 5,977,988.00 639,168.00 ' Point7 0.00 1,140.40 1,721.80 5,977,904.00 638,327.00 Point8 0.00 1,196.12 1,408.73 5,977,954.00 638,013.00 Point 9 0.00 1,347.98 1,308.48 5,978,104.00 637,910.00 Point 10 0.00 2,059.11 1,256.42 5,978,814.00 637,844.99 R -26B Polygon 0.00 0.00 0.00 1,904.00 163.33 5,978,639.00 636,755.00 70° 20' 58.066 N 148° 53' 22.960 W - survey misses target center by 8832.65ft at 9200.00ft MD (8831.46 TVD, 1850.83 N, 297.86 E) - Polygon Point 1 0.00 1,904.00 163.33 5,978,639.00 636,755.00 Point 2 0.00 2,111.77 453.19 5,978,852.00 637,041.00 Point 3 0.00 2,138.29 973.80 5,978,888.00 637,561.00 Point 4 0.00 2,358.92 1,710.00 5,979,122.00 638,293.00 Point 5 0.00 2,333.91 2,752.80 5,979,116.00 639,336.00 Point 6 0.00 2,451.56 3,487.12 5,979,247.00 640,068.00 Point 7 0.00 2,258.24 3,556.62 5,979,055.00 640,141.00 Point 8 0.00 2,087.53 2,770.31 5,978,870.00 639,358.00 Point 9 0.00 2,182.50 1,840.82 5,978,948.00 638,427.00 I Point 10 0.00 1,921.46 1,125.88 5,978,674.00 637,717.00 Point 11 0.00 1,883.06 489.03 5,978,624.00 637,081.00 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 2,513.00 2,512.91 SURFACE CASING 13.375 13.375 2,513.00 2,512.91 1.115 13.375 16.000 9,101.00 8,733.43 INTERMEDIATE CASING 1 9.625 9.625 9,101.00 8,733.43 0.802 9.625 12.000 10,045.00 8,862.47 2 -7/8" 2.388 4.125 I 12,300.00 8,880.54 2 -3/8" 2.375 3.000 1 Survey Annotations I Measured Vertical Local Coordinates Depth Depth +N / -S +E / -W (ft) (ft) (ft) (ft) Comment 9,200.00 8,831.46 1,850.83 297.86 TIP 9,210.00 8,841.36 4 1,852.18 298.20 KOP 12,300.00 8,880.54 2,209.51 3,066.77 TD Checked By: Approved By: Date: 5/11/2010 1:53:18PM Page 6 COMPASS 2003.16 Build 71 ► • TREE= - 4" CNV I WELLHEAD = FMC -2 6 B SAFETY NOTES: HA @ 97° @ 9484'; >70° @ 9408' ACTUATOR = AXELSON KB. ELEV = 72.56' R -26 B L 1 BF. ELEV = 39.46' KOP = 4100' DRAFT Max Angle = 106 @ 9671' ® I 2039' (--I4 -1/2" OTIS SSSV NIP, ID = 3.813" Datum MD = 9242' Datum TV D = 8800' SS GAS LIFT MANDRELS 13-3/8" CSG, 72 #, L -80, ID = 12.347" I-1 2513' I 41 S T MD TVD DEV TYPE VLV LATCH PORT DATE 6 2734 2734 0 OTIS RA 5 4877 4832 24 OTIS RA 4 6202 6037 24 OTIS RA 3 7129 6881 25 OTIS RA Minimum ID = 1.92" @ 9958' 2 7508 7227 23 OTIS RA 1 7652 7359 23 OTIS RA 2-3/8" LINER TOP 7721' 1- I4 -1/2" OTIS XA SLDNG SLV, ID = 3.813" rT L 7781' I-I TBG SEAL ASSY J �� X 7796' I-19-5/8" X 4-1/2" TM/ HBBP PKR, ID = 4.00" I r 7842' H4_1/2" OTIS X NIP, ID = 3.813" I 22° ■ 7817' I-I 3 -1/2" BAKER DEPLOY SLV, ID = 3.00" I l 7879' H4-1/2" OTIS XN NIP, ID == milled to 3.80" I 14 -1/2" TBG, 12.6 #, L -80, .0152 bpf, ID = 3.958" 1-1 7918' I \----- "'" - --1 7918' 1-14-1/2" BOT SOS TBG TAIL, ID = 3.958" I I 7916' I-I ELMD TT LOGGED 10/08/86 I I TOP OF 7" LNR I-J 8824' �° TOO 8650' '08 Caliper shows 7" split and parted at ° -8871' 19 -5/8" CSG, 47 #, L -80, ID = 8.681" I—) 9101' I--- -J I 9151' I-f MARKER JOINT I I 9180' I--I XO. 3 -12" STL TO 3 -3/16" LINER I PERFORATION SUMMARY LI 8 I 9215' I-I 4.5" x 7" BOT GEN II Whipstock I REF LOG: 1, 12-3/8" SLD/SLTD LNR, 4.4 #, L -80, STL, ID = 1.92 " I-f 11850' I ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data TOL _ _ 9,958 _ _ _ _ _ _ _ _ SIZE SPF INTERVAL Opn /Sqz DATE ; *, /- , . R -266 *... -'/ < v. r' SLTD 10106 - 10803 0 05/04/10 _ "`® I — mil i„,> 13 : I SLTD 11008 - 12179 0 05/04/10 I R -26BL1 t I BIT ALUMINUM BILLET, ID =1,92" I--I 10097' I SLTD 9959 - 10496 0 05/06/10 12 -3/8" SLD /SLTD LNR. 4,4 #, L -80 STL, ID = 1.92" H 12300' I SLTD 10646 - 11849 0 05/06/10 i MILLOUT WINDOW (R -26B) 9215' - 9223' I PBTD 9633' „ " R ' KOP(R- 26BL1) 10093' iiiiiii 1 7" LNR, 29 #, L -80, .0371 bpf, ID = 6.184" I 9675' VA.A.A.A., DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 02/02/86 ORIGINAL COMPLETION WELL: R -26B I BL1 03/01/86 RWO COMPLETION PERMIT No: 2100250 / 2100240 05/07/10 NORDIC2 CTD ST & ML (R -26B & BL1) API No: 50- 029 - 21547 -01 / -60 SEC 29, T12N, R13E BP Exploration (Alaska) • • P 1 � - ' / P ` F4 " _ i i SEAN PARNELL, GOVERNOR _ k _ ;: � .sY l e ,6 L 6 _1 6d' � 6d ice. ALASKA OIL AND GAS / 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMIIIISSION / ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 A FAX (907) 276 -7542 Mr. John McMullen Engineering Team Leader BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU R -26B BP Exploration (Alaska) Inc. Permit No: 210 -025 Surface Location: 226' FSL, 2313' FEL, SEC. 32, T12N, R13E, UM Bottomhole Location: 2533' FSL, 848' FWL, SEC. 33, T12N, R13E, UM Dear Mr. McMullen: Enclosed is the approved application for permit to re -drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincere , it . Norm. ommissioner _ DATED: This 7 day of March, 2010. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA RECEIVED/At ALASIWIL AND GAS CONSERVATION COMMION --.7 PERMIT TO DRILL FEB 2 4 2010 20 AAC 25.005 la. Type of work: 1 b. Proposed Well Class: ® Development Oil ❑ Service - Winj ❑ Single Zone 1 ' ` , i : .. ❑ Drill =� Redrill El Stratigraphic Test ❑ Development Gas ❑ Service - Supply ❑ Multiple Zone 16 • - r as Hydrates ❑ Re -Entry ❑ Exploratory ❑ Service - WAG ❑ Service - Disp ' ! - hale Gas 2. Operator Name: 5. Bond: IN Blanket ❑ Single Well 11. Well Name and Number: BP Exploration (Alaska) Inc. Bond No. 6194193 PBU R -26B 3. Address: 6. Proposed Depth: 12. Field / Pool(s): P.O. Box 196612, Anchorage, Alaska 99519 -6612 MD 12330' TVD 8815'ss Prudhoe Bay Field / Prudhoe 4a. Location of Well (Governmental Section): 7. Property Designation (Lease Number): Bay Oil Pool Surface: ADL 028279 & 028278 226' FSL, 2313' FEL, SEC. 32, T12N, R13E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 2075 FSL, 2011' FEL, SEC. 32, T12N, R13E, UM May 1, 2010 Total Depth: 9. Acres in Property: 14. Distance to Nearest Property: 2533' FSL, 848' FWL, SEC. 33, T12N, R13E, UM 2560 13,345' 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 72.9' feet 15. Distance to Nearest Well Open Surface: x- 636626 y- 5976731 Zone- ASP4 GL Elevation above MSL: 37.9' feet to Same Pool: 135' 16. Deviated Wells: Kickoff Depth: 9220 feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 105 degrees Downhole: 3200 Surface: 2320 18. Casing Program: Specifications Top - Setting Depth - Bottom Quantity of Cement, c.f. or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 4 -1/8" 3- 3/16" 6.2# L -80 TC -II 2240' 7860' 7479'ss 10100' 8772'ss 112 cu ft Class 'G' • 3" 2 - 3/8" 4.6# , L - 80 STL 2230' 10100' 8772'ss 12330' 8815'ss Uncemented Slotted Liner 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re - entry Operations) Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effective Depth MD (ft): Effective Depth TVD (ft): I Junk (measured): 9675' 9300' None 9633' 9259' 1 9420' Casing Length Size Cement Volume MD TVD Conductor / Structural 80' 20" 8 cu vds Concrete 110' 110' Surface 2513' 13 -3/8" 3255 cu f t Arcticset III. 465 cu ft AS I I 2513' 2312' Intermediate 9101' 9 -5/8" 1630 cu ft Class 'G'. 230 cu ft Class 'G' 9101' 6590' Production Liner 849' 7" 460 cu ft Class 'G' 8824' - 9675' 6479' - 6711' Perforation Depth MD (ft): 9190' - 9397' Perforation Depth TVD (ft): 8822' - 9026' 20. Attachments: ❑ Property Plat ® BOP Sketch ® Drilling Program ❑ Time vs Depth Plot ❑ Shallow Hazard Analysis ❑ Diverter Sketch ❑ Seabed Report ® Drilling Fluid Program 18120 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and ccoo Contact Wilmer Hoffman, 564 -4592 1ir Printed Name John M n , L�CO1 Title Engineering Team Leader Prepared By Name/Number Signature `/ Phone 564 -4711 Date Z / L �/ A Terrie Hubble, 564 -4628 Commission Use Only ! /// Permit To Drill API Number: Perm' pr I te: See cover letter for Number: ,2 /0 0 2 5 50- 029 - 21547 -01 -00 / /1 C other requirements Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained shales: [j' Other: 3'500 P L .>d P /eS / lJ Samples Req'd: ❑ Yes No Mud Log Req'd: ❑ `)es Milo Z 506 e S i, An h.�a, < -/--C - Measures: Yes II No Directional Survey Req'd: Yes ❑ No fre APPROVED BY THE COMMISSION Date mi l' 0 / , COMMISSIONER Form 10-401 Revised 07/2009 Th s rm't i v li f r 4 Emths from the • 1(20 AAC 25. 5(g)) Submit In Duplicate l l � � I Y 71.___ ,2•Z•OVC) A- 34 • R -26B & BL1 - Coiled TubinAilling To: Chairperson Alaska Oil & Gas Conversation Commission From: Wilmer Hoffman by CTD Engineer Date: February 15, 2010 Re: R -26B & BL1 Application for Permit to Drill Request CTD Drill and Complete R -26B & BL1 program: Spud in May 1, 2010 Pre -Rig Work: (scheduled to begin March 15, 2010) 1. S Caliper tubing from 9,350' MD (DONE on 2/24/08) 2. S Drift and tag top of the fill (DONE on 11/01/09) 3. F MIT -IA to 2,500 psi against TIW packer (PASSED MIT -IA on 11/24/09) 4. F MIT -OA to 2,000 psi 5. 0 AC -LDS; AC- PPPOT -IC, T 6. S Dummy off GLV's 7. S Drift/tag with dummy whipstock 8. E Set 4 -1/2" x 7" through tubing whipstock high side at 9,200' 9. C Squeeze cement past whipstock to isolate perfs. 10. C Mill out 4 -1/2" XN Nipple at 7879' to 3.80 ". 11. C Freeze protect the well and thoroughly wash the tree. 12. F MIT -T to verify cement plug 13. 0 Bleed wellhead pressures down to zero. 14. 0 Bleed production flow lines and GL lines down to zero and blind flange 15. 0 Remove wellhouse, level pad Rig Work: (scheduled to begin around May 1, 2010) 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. , 2. Mill 3.80" window at 9,200' and 10'of rathole. Swap the well to Geo -Vis. • 3. Drill Build: 4.125" OH, 550' (35 deg/100 planned). 4. Drill Lateral: 4.125" OH, 350' (12 deg/100 planned) with resistivity landing at 10,100' • 5. Run 3- 3/16" intermediate liner leaving TOL inside existing 4 -1/2" tubing at 7,860'. 6. Pump cement leaving TOC at -8,800' (covers parted 7" at 8,871'), 20 bbls of 15.8 ppg liner cmt 17 -rD ' planned , 7. Swap reels from 2 -3/8" coil (big hole) to 2" coil (small hole). R 8. Drill Lateral R -26B: 3.00" OH, 2,230' (12 deg/100 planned) with resistivity 9. Run 2 -3/8" slotted liner string with aluminum kickoff billet top at 10,100'. 10. Drill Build: 3.00" OH, 420' (35 deg/100 planned) 11. Drill Lateral R- 26BL1: 3.00" OH, 1,305' (12 deg/100 planned) with resistivity 12. Run 2 -3/8" slotted liner string leaving TOL inside 3- 3/16" at -10,000'. 13. Circulate well to KWF brine. 14. Freeze protect well, set BPV, RDMO. Post -Rig Work: 1. Re- install wellhouse, flowline and pull BPV. 2. Generic GLV's 3. ASRC test separator 2/23/2010 • R -26B & BL1 — Coiled Tubing Mud Program: • Well kill: 8.6 ppg seawater / brine • Milling /drilling: 8.6 ppg Geo -vis or biozan for milling, new Geo -vis for drilling. Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. • All Class I wastes will go to Pad 3 for disposal. Hole size: 4 -1/8" and 3" Casing Program: • 3- 3/16 ", 6.2 #, L -80, TC -II, solid 7,860' MD — 10,100' MD • A minimum of 20 bbls of 15.8 ppg cement will be used for liner cementing. (TOC 8,800'MD) • 2 -3/8 ", 4.6 #, L -80, STL, slotted liner — B lateral 10,100' MD - 12,330' MD • 2 -3/8 ", 4.6 #, L -80, STL, slotted liner — BL1 lateral 10,000' MD - 11,825' MD Well Control: • BOP diagram is attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3,500 psi. • The annular preventer will be tested to 250 psi and 2,500 psi. Directional: • See attached directional plan. Maximum planned hole angle for lateral R -26B is 105 deg and for lateral BL1 is 98 deg. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property line — 13,345' R -26B / 14,425' (R- 26BL1) • Distance to nearest well within pool — 135' to R -36 (R -26B) / 545' to R -10 (R- 26BL1) Anticollision Summary: • R -26B lateral has close proximity to R -36 with center to center distance of 151.18'. • R -26BL1 lateral has close proximity to planned well R -10A with center to center distance of 236.20'. Logging: • MWD directional, Gamma Ray, and Resistivity will be run over all of the open hole section. • A cased hole GR/CCUCNL log will be run. Hazards: • The maximum recorded H2S level on R -pad is 2,200 ppm on well R -19 (08- 21- 1996). The motherbore, well R -26A, registered 100 ppm on 2/3/08. • Fault crossings are expected in both laterals. No major lost circulation is expected from these crossings. Lateral B may encounter two faults and lateral BL1 will intersect two faults with the possibility of one other one for a total of three. Reservoir Pressure: • Reservoir pressure is estimated to be 3,200 psi at 8,800'ss (7.0 ppg EMW). Maximum surface pressure with gas (0.10 psi /ft) to surface is 2,320 psi. Wilmer Hoffman CTD Engineer 2/22/2010 • R -26B & BL1 — Coiled Tubing /tilling I K[G— 4 LIVV A RAC C TLATAR= F R -26A ACTUATOR = AXELSON SAFETY NOTES: KB. B_EV = 72.56' BF. B_EV = 39 46' - - - - - -- ----- - - - --- KOP= 4100' I Max Angle = 25 @ 5400' 1 2039' H4-1 /2" OTIS SSSV NIP, ID = 3.813" 1 Datum MD = 9242' • Datum TVD = 8800' SS GAS LFT MANDRELS ST MD TVD DEV TYPE VLV_LATCH PORT DATE 13 -3/8" CSG, 72 #, L -80, ID= 12.347" H 2513' 1 1 , 6 2734 2734 0 OTIS RA 5 4877 4832 24 OTIS RA 4 6202 6037 24 OTIS RA 3 7129 6881 25 OTIS RA Minimum ID = 3.726" e 7879' 2 7508 7227 23 OTIS RA 4 -112" OTIS XN NIPPLE ■ 1 7652 7359 23 OTIS RA MI I 772V H4 -112" OTIS XA SLDNG SLV, ID = 3 813" 1 I 7791' HTBG SEAL ASSY 1 ga 7796' H9 -5/8" X4- 112" VW HBBPFKR, ID = 4.00" 1 1 7947 H4 -112" OTIS X NIP, ID = 3.813" 1 1 7$7r H4 -112" OTIS XN NIP, ID= 3.725" 14 -1 /2" TBG, 12.6#, L -80, .0152 bpf, ID= 3.958" H 7619' I 7919' H4 -112" BOT SOS TBG TAIL, ID = 3 958" 7915' H ELMD TT LOGGED 10108/86 ITOP OF 7" LNR H 8824' I I Q_JR" rcr azre� _AIL In = R fiR1" H Q'0" ., PERFORATION SUMMARY REF LOG: SWS -BHCS ON 02/23/86 1 ANGLE AT TOP PERF: 8 @ 9190' 1 9151' HMARKERJOINT Note: Refer to R oduction DB for historical perf data SIZE SPF NTERVAL Opn/Sqz DATE I 3-1/8" 4 9190 -9217 0 10/07/86 3-3/8" 4 9190 - 9217 0 05/04/87 3-3/8" 4 9217- 9260 0 10/10/87 I 3-1/8" 4 9308 - 9317 0 01/02/88 3-1/8" 4 9320 - 9340 0 01/02/88 3-3/8" 4 9344 - 9350 0 09/09/90 I 3-1/8" 4 9350 - 9356 0 01/02/88 3-1/8" 4 9356- 9372 0 01/18/88 3-3/8" 4 9384 - 9397 0 06/21/89 1 9420' (— FISH - BKR INFL PKR, TEL, 2 CKS, TEL & CT STUB (18') Mil) 9633' i 7" LNR, 29#, L -80, .0371 bpf, ID = 6.184" I-I 9675' DATE REV BY COMMENTS DATE REV BY COMtvENTS PRUDHOEBAY UNIT 02/02/86 ORIGNAL COMPLETION V,€LL R -26A 03/01/86 RWO COMPLETION PERMIT No: 186 -0370 03/09/01 S5-S_T CONVERTBD TO CANVAS API No: 50- 029 - 21547 -00 03/14/01 SIS-MD FNAL SEC 29, T12N, R13E 04/05/02 RN/TP CORRECTIONS SO Exploration (Alaska) 2/22/2010 ill R -26B & BL1 - Coiled Tubing!rilling I KC= = 4 L IN MaLHEAD = FMC R-26B, -2 I ACTUATOR AXELSON � F �' KB ELEV = 72.56' BF ELEV = 3946' Proposed CTD Sidetrack KOP= 4100' ' Max Angle 254 5400' Datum MD = 9242' 2039' 1 - 112" OTIS SSSV NIP, ID= 3 813" I .. 0 Datum TVD = 8800' SS GAS LET MANDRELS ST MD TVD DEV TYPE VLV LATCH FORT DATE 13 -318" CSG, 72 #, L -80. ID= 12.347" H 2513' I-- 6 2734 2734 0 OTIS RA 5 4877 4832 24 OTIS RA 4 6202 6037 24 OTIS RA 3 7129 6881 25 OTIS RA Minimum ID = 1.99" 9800' 2 7508 7227 23 OTIS RA TOL 2-318" 1 7652 7359 23 OTIS RA I i 7721' H4 -1 /2" OTISXA SLENG SLV, ID= 3.813" I ■ 7781' HTBG SEAL ASSY I ' — 7798' H9 -5/8" X4-1/2" TNY HBBP FKR, ID = 4 00" 22° 1 7842 4 - /2" OTIS X NIP, ID= 3.813" I I 3 -3/ 15" L -80 TC-II TOL ID 2.30" --I 7880' I C ) 7879' H4 -1/2" OTIS XN NIP, ID= milled to 8.81:" 14 -112" TBG, 12 6 #, L -80, 0152 bpf, ID = 3 958" 7918' V 791W H4 -112" BOT SOS TBG TAIL, ID = 3.958" 7918' E LMO TT LOGGED 10/08/86 'TOR OF 7" LNR —I 8824' I 11* �- -- -- TOC 8800' '08 caliper shows 7" split and parted at —8871' 1 9 -5/8" CSG, 47 #, L -80, ID= 8.681" H 9101' I PERFORATION SUMMARY 9151' HMARKER JOINT I R LOG: SWS -BHCS ON 02/23/86 $ u I 92 00' H 4 5" x 7 " whipstoc k ANGLEAT TOP PERF 8 @ 9190' \\\ 1 Note Refer to Production DB for historical pert data ` 8 -3/8" L -80 ST -L slotted liner — I 11825' SIZE SPF NTE RVAL Opn/Sqz DATE 3-1/8" 4 9190 -9217 0 10 /BL1 3-3/8" 4 9190 - 9217 0 05/04/87 C 3.3/8" 4 9217- 9260 0 10/10/87 _ _ !,›B 3-1/8" 4 9308 - 9317 0 01/02/88 = ` 3-1/8" 4 9320 - 9340 0 01/02/88 TOL Al billet - 10,100' 3-3/8" 4 9344 - 9350 0 09/09/90 3-1/8" 4 9350 - 9356 0 01/02/88 I 2 -3/8" L -80 ST -L slotted liner i-I 12330' I 3-1/8" 4 9356 - 9372 0 01/18/88 3-3/8" 4 9384 - 9397 0 06/21/89 I PBTD H 9833' A ,� y7N. NhS'AMP.'�'� 7" �m 29'1 1 Re\ i 371 w, 'D - a I V I 8 1tt}Vt --T • DATE REV BY COMMENTS DATE REV BY COMMENTS PRUCHOE BAY UNIT 02/02/86 ORIGINAL COMPLETION 11/02/09 I MSE PROPOSED CTD SIDETRACK WELL: R -26B 03/01/86 RVVO COMPLETION PERMIT No: 03/09/01 SIS -SLT CONVERTED TO CANVAS API No 50- 029 - 21547 -08 03/14/01 Sts -MD FNAL SEC 29, T12N, R13E 04 /05/02 RN/TP CORRECTIONS BP Exploration (Alaska) 2/22/2010 • R -26B & BL1 — Coiled TubinArilling All Measurements are from top of Riser 2/1/2010 C/) R-26B top of bag BAG 7 1/16" 5000 psi 1 bttm of bag I middle of blind/shears Blind /Shears TOTs middle of pipe /slips I 2 3/8" combi ram /slips 71/16" 5000 psi I I : middle of flow cross Mud Cross Mud Cross 7 1/16" 5000 psi middle of rams I 2 3/8" x 3 1/2" VBR's TOTs middle of pipe /slips I 2 3/8" combi ram /slips 71/16" 5000 psi I ■ Swab Valve Flow Tee BOPE configuration for 2 -3/8" coil (big hole) 2/22/2010 R -26B & BL1 — Coiled Tubingtilling All Measurements are from top of Riser 2/1/2010 i () (/) cc R -26B & BL1 top of bag f • BAG bttm of bag I middle of blind /shears I Blind/Shears I I TOTs middle of pipe /slips I 2" combi pipe /slips I I middle off low cross 0 Mud Cross Mud Cross I I middle of rams I 2 3/8" x 3 1/2" VBR's I I TOTs middle of pipe /slips I 2" combi pipe /slip I [ Swab Valve I I Flow Tee BOPE configuration for 2" coil (small hole) 2/22/2010 BAKER HUGHES INTEQ North America - ALASKA - BP • Prudhoe Bay PB R Pad R -26A - Slot 26A Plan 10, R -26B Plan: Plan 10 Baker Hughes INTEQ Planning Report 01 December, 2009 � bp URI Baker Hughes INTEQ BAKER Baker Hughes INTEQ Planning Report 0 bP 1NTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay ND Reference: Mean Sea Level Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillin Well: R -26A North Reference: True Wellbore: Plan 10, R -26B Survey Calculation Method: Minimum Curvature Design: Plan 10 Database: EDM 2003.16 Single User Db Project Prudhoe Bay, North Slope, UNITED STATES Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB R Pad, TR -12 -13 • Site Position: Northing: 5,975,706.22 ft Latitude: 70° 20' 29.100 N From: Map Easting: 637,446.42 ft Longitude: 148° 53' 4.328 W Position Uncertainty: 0.00 ft Slot Radius: 0 " Grid Convergence: 1.05 ° Well R -26A - Slot 26A, R -26A Well Position +NI -S 0.00 ft Northing: 5,976,732.49 ft Latitude: 70° 20' 39.340 N +E/ -W 0.00 ft Easting: 636,626.41 ft Longitude: 148° 53' 27.733 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00 ft Wellbore Plan 10, R -26B Magnetics Model Name Sample Date Declination Dip Angle Field Strength ( °) ( °) (nT) BGGM 9/9/2009 22.44 80.94 57,668 Design Plan 10 Audit Notes: Version: Phase: PLAN Tie On Depth: 9,100.00 Vertical Section: Depth From (TVD) +NI-S +E/ -W Direction (ft) (ft) (ft) r) 7 -20.00 0.00 0.00 100.00 12/1/2009 10:44:55AM Page 2 COMPASS 2003.16 Build 71 1 -- Mi ■ Baker Hughes INTEQ NUGHIS Baker Hughes INTEQ Planning Report 0 bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Wellbore: Plan 10, R -26B Survey Calculation Method: Minimum Curvature Design: Plan 10 Database: EDM 2003.16 Single User Db Survey Tool Program Date 11/25/2009 From To (ft) (ft) Survey (Wellbore) Tool Name Description 100.00 9,100.00 1 : Sperry-Sun BOSS gyro multi (R -26A) BOSS -GYRO Sperry-Sun BOSS gyro multishot 9,100.00 12,330.00 Plan 10 (Plan 10, R -26B) MWD MWD - Standard • Planned Survey MD Inc Azi TVDSS N/S EM/ Northing Easting DLeg V. Sec TFace (ft) ( ( (ft) (ft) (ft) (ft) (ft) 0100ft) (ft) ( °) 9,100.00 8.02 19.30 8,659.54 1,837.50 293.84 5,978,574.90 636,886.69 0.99 -29.70 - 163.71 TIP 9,101.00 8.02 19.25 8,660.53 1,837.63 293.88 5,978,575.03 636,886.73 0.70 -29.68 -94.12 0.802 9,200.00 8.00 14.30 8,758.56 1,850.83 297.86 5,978,588.30 636,890.47 0.70 -28.06 -94.07 KOP 9,220.00 9.71 17.95 8,778.32 1,853.78 298.73 5,978,591.27 636,891.28 9.00 -27.72 20.00 End of 9 Deg /100' DLS 9,300.00 37.26 33.33 8,851.04 1,880.98 314.43 5,978,618.74 636,906.48 35.00 -16.98 20.00 9,400.00 72.17 36.62 8,907.92 1,946.52 360.91 5,978,685.12 636,951.76 35.00 17.42 5.47 9,451.04 90.00 37.69 8,915.80 1,986.54 391.25 5,978,725.68 636,981.36 35.00 40.35 3.47 4 9,500.00 100.92 50.98 8,911.13 2,021.31 425.14 5,978,761.05 637,014.61 35.00 67.69 50.00 9,501.04 101.14 51.27 8,910.93 2,021.95 425.94 5,978,761.71 637,015.40 35.00 68.36 51.28 5 9,600.00 104.83 86.65 8,888.01 2,056.17 514.26 5,978,797.53 637,103.07 35.00 149.40 80.00 9,611.04 104.91 90.64 8,885.17 2,056.42 524.93 5,978,797.98 637,113.73 35.00 159.86 88.20 End of 35 Deg /100' DLS 9,700.00 104.65 101.68 8,862.41 2,047.20 610.30 5,978,790.32 637,199.25 12.00 245.53 90.00 9,756.04 104.21 108.61 8,848.43 2,033.03 662.65 5,978,777.10 637,251.85 12.00 299.55 92.82 7 9,800.00 104.15 103.17 8,837.65 2,021.36 703.62 5,978,766.19 637,293.02 12.00 341.93 -90.00 9,900.00 103.56 90.82 8,813.61 2,009.57 799.78 5,978,756.15 637,389.37 12.00 438.67 -91.33 12/1/2009 10 :44:55AM Page 3 COMPASS 2003.16 Build 71 Mil 11 Baker Hughes INTEQ BAKER MORES Baker Hughes INTEQ Planning Report 0 by INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillini Well: R -26A North Reference: True Wellbore: Plan 10, R -26B Survey Calculation Method: Minimum Curvature Design: Plan 10 Database: EDM 2003.16 Single User Db Planned Survey MD Inc Azi TVDSS N/S E/W Northing Easting DLeg V. Sec TFace (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) ( ° / (ft) (°) 10,000.00 102.37 78.57 8,791.10 2,018.59 896.61 5,978,766.93 637,486.01 12.00 532.46 -94.30 10,051.04 101.55 72.37 8,780.51 2,031.11 944.92 5,978,780.33 637,534.08 12.00 577.86 -97.06 0 8 10,100.00 98.18 77.25 8,772.12 2,043.74 991.45 5,978,793.80 637,580.37 12.00 621.49 124.50 10,200.00 91.16 87.02 8,763.97 2,057.30 1,090.00 5,978,809.16 637,678.65 12.00 716.20 125.34 10,216.04 90.02 88.58 8,763.81 2,057.92 1,106.03 5,978,810.06 637,694.67 12.00 731.87 126.14 9 10,300.00 89.23 78.53 8,764.35 2,067.33 1,189.35 5,978,820.99 637,777.79 12.00 812.29 -94.50 10,400.00 88.33 66.56 8,766.49 2,097.26 1,284.55 5,978,852.65 637,872.42 12.00 900.85 -94.43 10,496.04 87.53 55.06 8,769.97 2,143.99 1,368.20 5,978,900.89 637,955.20 12.00 975.11 -94.18 10 10,500.00 87.56 55.53 8,770.14 2,146.24 1,371.45 5,978,903.20 637,958.41 12.00 977.92 86.00 10,600.00 88.45 67.51 8,773.64 2,193.81 1,459.14 5,978,952.36 638,045.21 12.00 1,056.02 85.98 10,646.04 88.88 73.02 8,774.71 2,209.34 1,502.44 5,978,968.68 638,088.22 12.00 1,095.97 85.56 11 10,700.00 89.34 79.48 8,775.55 2,222.16 1,554.82 5,978,982.45 638,140.35 12.00 1,145.32 86.00 10,796.04 90.17 90.97 8,775.95 2,230.15 1,650.37 5,978,992.17 638,235.73 12.00 1,238.03 85.90. 12 10,800.00 90.17 90.50 8,775.94 2,230.10 1,654.32 5,978,992.20 638,239.69 12.00 1,241.94 -90.00 10,900.00 90.17 78.50 8,775.64 2,239.67 1,753.68 5,979,003.58 638,338.84 12.00 1,338.12 -90.00 10,946.04 90.16 72.97 8,775.51 2,251.01 1,798.29 5,979,015.73 638,383.23 12.00 1,380.08 -90.04 13 11,000.00 90.05 79.44 8,775.41 2,263.87 1,850.66 5,979,029.54 638,435.36 12.00 1,429.43 91.00 11,100.00 89.84 91.44 8,775.50 2,271.80 1,950.16 5,979,039.28 638,534.69 12.00 1,526.04 91.01 11,200.00 89.63 103.44 8,775.96 2,258.87 2,049.14 5,979,028.16 638,633.88 12.00 1,625.76 91.00 11,226.04 89.58 106.57 8,776.14 2,252.13 2,074.29 5,979,021.88 638,659.15 12.00 1,651.70 90.95 14 11,300.00 89.74 97.69 8,776.58 2,236.61 2,146.52 5,979,007.67 638,731.64 12.00 1,725.53 -89.00 12/1/2009 10:44:55AM Page 4 COMPASS 2003.16 Build 71 Eat Baker Hughes INTEQ BAKER Baker Hughes INTEQ Planning Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillini Well: R -26A North Reference: True Wellbore: Plan 10, R -26B Survey Calculation Method: Minimum Curvature Design: Plan 10 Database: EDM 2003.16 Single User Db Planned Survey MD Inc Azi TVDSS N/S E/W Northing Easting DLeg V. Sec TFace (ft) (°) ( °) (ft) (ft) (ft) (ft) (ft) (/100ft) (ft) ( °) 11,400.00 89.97 85.69 8,776.83 2,233.66 2,246.29 5,979,006.54 638,831.45 12.00 1,824.30 -88.95 11,426.04 90.03 82.57 8,776.83 2,236.32 2,272.20 5,979,009.68 638,857.29 12.00 1,849.34 -88.92 0 15 11,500.00 89.87 91.44 8,776.90 2,240.18 2,345.98 5,979,014.88 638,930.99 12.00 1,921.34 91.00 11,600.00 89.67 103.44 8,777.30 2,227.25 2,444.96 5,979,003.76 639,030.18 12.00 2,021.05 90.99 11,626.04 89.62 106.57 8,777.46 2,220.51 2,470.11 5,978,997.47 639,055.44 12.00 2,046.99 90.94 16 11,700.00 88.39 97.78 8,778.75 2,204.93 2,542.32 5,978,983.22 639,127.92 12.00 2,120.81 -98.00 11,800.00 86.80 85.87 8,782.96 2,201.75 2,642.00 5,978,981.86 639,227.63 12.00 2,219.53 -97.85 11,896.04 85.40 74.40 8,789.52 2,218.13 2,736.24 5,978,999.95 639,321.56 12.00 2,309.50 -97.35 17 11,900.00 85.43 74.88 8,789.83 2,219.17 2,740.04 5,979,001.06 639,325.34 12.00 2,313.06 86.30 12,000.00 86.31 86.88 8,797.06 2,234.95 2,838.34 5,979,018.63 639,423.33 12.00 2,407.13 86.26 12,046.04 86.77 92.39 8,799.85 2,235.24 2,884.28 5,979,019.75 639,469.25 12.00 2,452.32 85.39 18 12,100.00 86.79 85.91 8,802.88 2,236.04 2,938.12 5,979,021.53 639,523.06 12.00 2,505.20 -90.00 12,200.00 86.93 73.89 8,808.38 2,253.51 3,036.24 5,979,040.79 639,620.84 12.00 2,598.79 -89.63 i iii 12,300.00 87.21 61.88 8,813.50 2,291.04 3,128.59 5,979,080.00 639,712.48 12.00 2,683.23 -88.97 lor 12,330.00 87.32 58.28 8,814.94 2,305.99 3,154.56 5,979,095.41 639,738.17 12.00 2,706.20 -88.36 2 3/8" 12/1/2009 10:44:55AM Page 5 COMPASS 2003.16 Build 71 MU Baker Hughes INTEQ BAKER NUODIES Baker Hughes INTEQ Planning Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Welibore: Plan 10, R -26B Survey Calculation Method: Minimum Curvature Design: Plan 10 Database: EDM 2003.16 Single User Db Targets Target Name - hit/miss target Dip Angle Dip Dir. TVD +NI-S +E / -W Northing Easting - Shape (°) (1 (ft) (ft) (ft) (ft) (ft) Latitude Longitude R -26B Target 5 0.00 0.00 8,815.00 2,305.58 3,154.38 5,979,095.00 639,738.00 70° 21' 2.009 N 148° 51' 55.547 W - plan hits target center - Point R -26B Target 3 0.00 0.00 8,774.00 2,266.23 1,856.34 5,979,032.00 638,441.00 70° 21' 1.626 N 148° 52' 33.482 W - plan misses target center by 1.93ft at 11005.86ft MD (8775.40 TVD, 2264.91 N, 1856.43 E) - Point R -26B Target 4 0.00 0.00 8,777.00 2,217.67 2,489.62 5,978,995.00 639,075.00 70° 21' 1.147 N 148° 52' 14.975 W - plan misses target center by 2.54ft at 11645.72ft MD (8777.65 TVD, 2215.28 N, 2489.07 E) - Point R -26B Target 1 0.00 0.00 8,763.00 2,057.66 1,116.36 5,978,810.00 637,705.00 70° 20' 59.576 N 148° 52' 55.109 W - plan misses target center by 1.02ft at 10226.29ft MD (8763.81 TVD, 2058.28 N, 1116.27 E) - Point R -26B Polygon 0.00 0.00 0.00 1,904.00 163.33 5,978,639.00 636,755.00 70° 20' 58.066 N 148° 53' 22.960 W - plan misses target center by 8660.77ft at 9100.00ft MD (8659.54 TVD, 1837.50 N, 293.84 E) - Polygon Point 1 0.00 1,904.00 163.33 5,978,639.00 636,755.00 Point 2 0.00 2,111.77 453.19 5,978,852.00 637,041.00 Point 3 0.00 2,138.29 973.80 5,978,888.00 637,561.00 Point4 0.00 2,358.92 1,710.00 5,979,122.00 638,293.00 Point 5 0.00 2,333.91 2,752.80 5,979,116.00 639,336.00 Point 6 0.00 2,451.56 3,487.12 5,979,247.00 640,068.00 Point 7 0.00 2,258.24 3,556.62 5,979,055.00 640,141.00 Point 8 0.00 2,087.53 2,770.31 5,978,870.00 639,358.00 Point 9 0.00 2,182.50 1,840.82 5,978,948.00 638,427.00 Point 10 0.00 1,921.46 1,125.88 5,978,674.00 637,717.00 Point 11 0.00 1,883.06 489.03 5,978,624.00 637,081.00 Point 12 0.00 1,904.00 163.33 5,978,639.00 636,755.00 R -26B Target 2 0.00 0.00 8,775.00 2,207.71 1,500.19 5,978,967.00 638,086.00 70° 21' 1.051 N 148° 52' 43.891 W - plan hits target center Point 12/1/2009 10:44:55AM Page 6 COMPASS 2003.16 Build 71 1 1 Baker Hughes INTEQ HUGHES Baker Hughes INTEQ Planning Report 0 bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay ND Reference: Mean Sea Level Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling Well: R -26A North Reference: True Wellbore: Plan 10, R -26B Survey Calculation Method: Minimum Curvature Design: Plan 10 Database: EDM 2003.16 Single User Db Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name ( ") ( °) 2,513.00 2,440.01 1.115 13 -3/8 16 9,101.00 8,660.53 0.802 9 -5/8 12 0 12,330.00 8,814.94 2 3/8" 2 -3/8 3 Plan Annotations Measured Vertical Local Coordinates Depth Depth +141 -S +E/-W (ft) (ft) (ft) (ft) Comment 9,100.00 8,659.54 1,837.50 293.84 TIP 9,200.00 8,758.56 1,850.83 297.86 KOP 9,220.00 8,778.32 1,853.78 298.73 End of 9 Deg /100' DLS 9,451.04 8,915.80 1,986.54 391.25 4 9,501.04 8,910.93 2,021.95 425.94 5 9,611.04 8,885.17 2,056.42 524.93 End of 35 Deg /100' DLS 9,756.04 8,848.43 2,033.03 662.65 7 10,051.04 8,780.51 2,031.11 944.92 8 10,216.04 8,763.81 2,057.92 1,106.03 9 10,496.04 8,769.97 2,143.99 1,368.20 10 10, 646.04 8,774.71 2,209.34 1,502.44 11 II 10,796.04 8,775.95 2,230.15 1,650.37 12 10,946.04 8,775.51 2,251.01 1,798.29 13 11,226.04 8,776.14 2,252.13 2,074.29 14 11,426.04 8,776.83 2,236.32 2,272.20 15 11,626.04 8,777.46 2,220.51 2,470.11 16 11,896.04 8,789.52 2,218.13 2,736.24 17 12,046.04 8,799.85 2,235.24 2,884.28 18 12,330.00 8,814.94 2,305.99 3,154.56 TD at 12330.00 I Checked By: Approved By: Date: 12/1/2009 10:44:55AM Page 7 COMPASS 2003.16 Build 71 Project: PrudhoeBay M y e m " WELLBORE DETAILS: Plan 10, R -268 REFERENCENFORMATION M .. Site: PBR Pad Ma9nekFen Parent Wellbore: R - 260 CoprL�ale(N�Ref:rence: wetlR- 260- Sbt2fiA,TmeNoM BAKER 0 bp Well: R -260 Stmrst:57667.7an1 tkrliczl(TVD)Ret:rence: Mean Sea Level hu Wellbore: Plan 10, R - 26B DgMro 80 94° Tie on MD: 9100.00 Soden(VS)Rt fence: Sbt- 26A(0.00N,0.00E) Y�� Dan. 9,912005 P Ian:PWn 10 (R - 26AIPIan 10,RS6B) MotleF e(:DrJ MPasuredDeReference: n 251198600WQ 72.90fl(generictlringrig) INT:Q - - Catu10011 upon Wince: Mi Mininum CurvaWre 3800' WELL DETAILS: R - 26A 360 Ground Level: 0.00 - +N / -S +E / -W Northing Eastrng Latittude Longitude Slot 0.00 0.00 5976732.49 636626.41 70° 20' 39.340 N 148° 53' 27.733 W 26A 3400 SECTION DETAILS ANNOTATIONS 3200 Sec MD Inc Azi ssTVD +N/-S +E) -W DLeg TFace VSec Target Annotation 3000- 1 9100.00 8.02 19.30 8659.54 1837.50 293.84 0.00 0.00 -2970 TIP R- 26A/Plan 10 R -26B 2 9200.00 8.00 14.30 8758.56 1850.83 29786 0.70 -94.12 -28.06 KOP 3 9220.00 9.71 17.95 8778.32 1853.78 298.73 9.00 20.00 -2772 End of 9 De9/100' DLS - 2800 4 9451.04 90.00 37.69 8915.80 1986.54 391.25 35.00 20.00 40.35 4 � - R -268 Target 4 5 9501.04 101.14 51.27 8910.93 2021.95 425.94 35.00 5600 68.36 5 2 611 6 9611.04 104.91 90.64 8885.17 2056.42 524.93 35.00 80.00 15986 End of 35 Deg1100 DLS c - o e - 1 Target I 7 9756.04 104.21 10861 8848.43 2033.03 662.65 12.00 9800 299.55 7 N r , . et 2 R -26B T e1 3 8 10051.04 101.55 72.37 8780.51 2031.11 944.92 12.00 270.00 577.86 8 2 7 11 10646.04 88.88 7302 8774.71 2209.34 1502.44 12.00 86.00 1095.97 11 p � �./ � TD 30.00 12 10796.04 90.17 90.97 8775.95 2230.15 1650.37 12.00 86.00 1238.03 12 20'1' t Mil f i � 13 10946.04 90.16 72.97 8775.51 2251.01 1798.29 12.00 270.00 138008 13 _Ip' I 11 16 14 11226.04 89.58 106.57 8776.14 2252.13 2074.29 12.00 91.00 1651.70 14 R�� N1� 0 i� 15 11426.04 90.03 82.57 877683 2236.32 2272.20 12.00 271.00 184934 15 1 801 r�� �, : _ 16 11626.04 89.62 106.57 8777.46 2220.51 2470.11 12.00 91.00 2046.99 16 r ? � �� 17 11896.04 85.40 74.40 8789.52 2218.13 2736.24 12.00 262.00 2309.50 17 18 12046.04 86.77 92.39 87998 1601 ���� 5 2235.24 2884.28 12.00 86.30 2452.32 18 t e E3dof5 Deg/ , , 19 1233000 87.32 58.28 8814.94 230599 3154.56 12.00 270.00 2706.20 1Dat12330.03 1400. I� KOP 1„' 1211 .� -- -- - -- 1001 '■ ■ - -�� III - - 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 West( - )/East( +) (200 ft/in) 8280 8370 8460 8550 t• eV - TIE �, 0 8641 - • a ,e ON , R -26B Target 4 8730 KO? 10 11 12 13 14 R -2613 Talk ct 5 CL. • A 8820 End c f 9 Deg/100 DLS 8 9 15 16 1 ' 18 TD a112330.00 U 7 8910 4 5 R- 26A/Plan 6, R -26BL 1 9000 Er d uf 3 5 Dcg 100' DLS F 90 6 9180 - 26A/R - 26A ) 9270 -180 -90 0 90 180 270 360 450 540 630 720 810 900 990 1080 1170 1260 1350 1440 1530 1620 1710 1800 1890 1980 2070 2160 2250 2340 2430 2520 2610 2700 2790 2880 ^ 2970 3060 3150 ^ l 3240 3330 Vertical Section at 100.00° (90' ft/in) Project: Prudhoe Bay Mnnnrue per° WELLBORE DETAILS: Plan 10, R -26B REFERENCEMFCRMnTICN Mill Site: PB RPad CoaNinaze(WE)Reterence: WeII R- 26A -Sbt Z6A, Tme NoM � E MagneUCridJ P aren t W e b ore: R - 26A BAKUR S 0 Well: R -26A sVengN�Ar£nsni Ti on MD 9100.00 Vertical (TVD)Reference:46: Z6A2I6179860000Q 72.9gfl (generic drilling rig) Y1 Wellbore: Plan 70, R -266 opag�e: 80 94° Secfiw (VS)Reference: Sbt- 2fiA(O OON,000E) N Plan: Plan #10 (R-26A/Plan 70, R-2613) IDate: B Measu ed DevE Re erence Calculation Method: 46 26A2 fi 19960000 (� 72.90 (generic drilling d9) MinimumCurvaWre 1NTEQ R 2/' -2 3200 ,3100 lIHhlI 3001 2511 � III i U ii I ii IHhII _ 111 _ ___ i :- 1: •; 2400 ■ ■ ■. ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■- �... = ■■■ ::': Ilia _ ■r ■ ■■■■�� mem %mmins t ■ ■�� falw' O 2 111 ;.11EMESINEKV• 4 :. ■;/ .- � .. II 8 1 . ..- eP EE i ' ' ■■EOMII.. _E ME ■■■■■■■ .! - I:: !i U L !I E i II I i � 40 0 I1;1� 1300 ■ ■. ■. ■ ■ ■ ■ ■.� ■ ■I■'1'■ .4.�� . 1 iR 35/R;35_ _ II ME Y 1200 .■..I■■■■■■,M ■■„■`■—_ ■ ■■ ■.� ■E .MEMM ■■■■■■■■!■■`Tar F 10 00 _ - 1 ■ ■ ■■ ■■ %!'/ ■M__ \ - = ..TAN M 911 ■M"'.. ,M.M■. ■::■ E:.■'. 800 nittiE t , R I MPA ■lIIIMPA M_MMEM 5 700 aimj R -11 ' -10 600 , PP P -200 -100 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 West( - )/East( +) (100 ft/in) 1 Project: Prudhoe Bay ANTI - COLLISION SETTINGS COMPANY DETAILS Nam Amen. - ALASKA -BP /_ 0 Site PB R Pad NORTH AMERICA I/I.� bp Interpolation Method: MD interval:50.00 BAKER Well: R -26A Depth Range From: 9100.00 To 12330.00 Results Limited By Centre Distance: 1427.71 Error system. ISCWSA HUGHES Scan thod Wefbore: Plan 10, R -26B Reference: Plan: Plan #10 (R-26A/Plan 10, R -26B) Error s w. i ■ Plan: Plan #10 (R-26A/Plan 10, R -26B) Wan, Method .......d 1N TEQ WELL DETAILS: R - 26A Ground Level: 0.00 I ♦WS ...RPM Northing Easting Latittude Longitude Slot From Colour TO MO 0.00 0.00 5976732.48 636626.41 70 °20'39.340N 148 °53'27.733W 26A SECTION DETALS Sec MD Inc An ND eWS vEJW DLog Waco VSee Target _ _ Q 1 910000 8.02 1830 73244 1837.50 29384 0.00 000 - 2970 .. 200 - �� 12 -28.06 3 9220 2 920000 .00 8.00 9.71 17.9 14.30 83146 1850 5 85122 1853.78 298. 83 29786 0.70 -94 73 9.00 2000 -2772 r � - 184 ` \\ 6 4 4 94510 00.90 3768 988.70 1086.54 391 93 32.99 8999 177.88 94 35.00 20.00 40.37 `... \ 5 950104 101.11 51.67 99384 2021.90 42594 3500 5002 6937 005104 10 51 72 37 95808 2031 10 94 101 55 .4 7 0216.04 190.01 188 51 83672 2057.83 106 04 12. 46 12.00 124 00 24 51 096.00 01 731.89 16 � 8 10491.04 187.53 5506 842 62 22088 2143.10 30822 12.00 -9450 975.14 / \ 7.9 30 1502 0 - \ 4� 10 10496.04 87.53 5596 84288 214395 136822 12.00 -9450 975.14 1 - ` \ \ 9 10646.04 88.88 73 08 83 11 1064604 90.1 7302 884862 220930 150246 12.00 8602 109600 ` ` 12 1 89.57 0657 84909 2252.10 2074.39 1200 9100 1 - `` \ 13 1 90.03 82.57 849.78 2236 22 2.21 12.00 8801 1849.31 : 136 ` 14 1162604 8962 10657 84909 222044 247012 1200 9100 704702 \ \ \ 15 11896.04 9003 7440 862.45 221807 2736.26 1200 -9800 130952 \ ` \ 16 11046.04 89.77 79239 872 2220.19 2884.30 1200 8609 245234 jj 120 -- \ \ \ 17 1133000 87.32 5828 88786 230594 273626 1200 00 2706.23 \ 18 1204600 86.77 9239 872.77 2235.19 288430 12.00 8629 2152.34 j - - \ ` \ 19 1233000 8732 5826 88786 230594 315458 1200 -9001 2706 23 - SURVEY PROGRAM \ B\ / - 72 Date: 2009-12-01 T00:00:00 Validated: Yes Version: Depth From Depth To Survey/Plan Tool 100.00 91 00.00 \ \` I P 111.11,1T11( 5 6 )%%\\\\%\‘‘\\\\\\ \ 9100.00 12330.00 1 :S err (PlanBO R-26B) multi (30215/4BYRO j 40 j / .I j I 1r1 24 /� ,� 11. I� I I I I I I I I I I I I I I I I I I I 915 1111111 IIIIIIIIIIIIIIIIII�IIIII 27 4 9293245 �If� 01111011111II 1 -- LEGEND 1111111 - R 06, R 06, R 06 Vi �� /�� II IIIIIII *** \ \ \` \ 32 , - R -06A, R -06A, R -06A V3 10, Plan • � 48 � - R -10 R- 10 #R -10 V OA, Plan #12 V4 64 ; .. � R -21 R -21 R -21 V1 -R -21, R -21L1, R -21L1 VO \4v\ R 21 R 21L1 -01 R- 21L1 -01 VO 9s - R -22, R -22, R -22 V3 ���p `` O�� 112 R-23, R-23, R-23 V1 j \ \ - R -23A, R -23A, R -23A V2 _ - 128 ,// ... / R-24, R-24, _ \ \\ \ / R24 R24 R-24 V1 \ \ \ \�\ ` 144 , :- f -.- R -26A, R -26A, R -26A V1 �\\ ,,._,...,„ 160 10 10893 j - R -27, R -27, R -27 V1 R -26A/R -26A 10905 ' R -35, R -35, R -35 V1 � ._ 176 - R -36, R -36, R -36 V1 21' \ - 150 - R -40, R -40, R -40 V2 192 - R- 40PB1, R- 40PB1, R -40PB1 V14 R- 36/R -36 `- -Plan #10 180 Travelling CylinderAzimuth (TFO +AZI) [ vs Centre to Centre Separation [16 ft/in] S ■SII II BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB R Pad R -26A Plan 10, R -26B Plan #10 Travelling Cylinder Report 01 December, 2009 � bp NMI • BPPASSPORT S Man Travelling Cylinder Report 0 bP 1NTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay ND Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling rig) Reference Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling rig) Site Error: 0.00ft North Reference: True Reference Well: R -26A Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan 10, R -26B Database: EDM .16 - Anc Prod - WH24P Reference Design: Plan #10 Offset ND Reference: Offset Datum Reference Plan #10 Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 9,100.00 to 12,330.00ft Scan Method: Tray. Cylinder North Results Limited by: Maximum center - center distance of 1,427.71ft Error Surface: Elliptical Conic Survey Tool Program Date 12/1/2009 From To (ft) (ft) Survey (Wellbore) Tool Name Description 100.00 9,100.00 1 : Sperry-Sun BOSS gyro multi (R -26A) BOSS -GYRO Sperry-Sun BOSS gyro multishot 9,100.00 12,330.00 Plan #10 (Plan 10, R -26B) MWD MWD - Standard Casing Points Measured Vertical Casing Hole ! Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 12,330.00 8,887.86 2.875" 2.875 4.125 9,101.00 8,733.43 0.802 9.625 12.000 2,513.00 2,512.91 1.115 13.375 16.000 Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well - Wellbore - Design (ft) (ft) (ft) (ft) PB R Pad R -06 - R -06 - R -06 10,550.00 10,050.00 1,111.73 685.90 432.36 Pass - Major Risk R -06A - R -06A - R -06A 10,559.39 10,000.00 1,143.46 667.44 479.46 Pass - Major Risk R -10 - Plan #12, R -10A - Plan #12 11,736.15 10,025.00 1,170.54 692.69 477.94 Pass - Major Risk R-10-R-10-R-10 11,750.00 10,075.00 1,177.90 703.90 474.06 Pass - Major Risk R -21 - R -21 - R -21 Out of range R -21 - R -21 L1 - R -21 L1 Out of range R -21 - R -21 L1 -01 - R -21 L1 -01 Out of range R -22 - R -22 - R -22 11,950.00 10,000.00 1,144.81 253.75 914.55 Pass - Major Risk R -23 - R -23 - R -23 Out of range R -23A - R -23A - R -23A Out of range R -24 - R -24 - R -24 Out of range R -26A - Plan 6, R -26BL1 - Plan #6 10,124.96 10,125.00 1.42 1.60 -0.13 FAIL - Major Risk R -26A - R -26A - R -26A 9,224.98 9,225.00 0.53 5.29 -3.84 FAIL - Major Risk R -27 - R -27 - R -27 Out of range R -35 - R -35 - R -35 12,327.49 10,850.00 1,310.34 370.27 998.20 Pass - Major Risk R -36 - R -36 - R -36 10,900.00 9,750.00 151.18 277.72 - 125.57 FAIL - Major Risk R-40 - R-40 - R -40 9,925.00 9,350.00 347.89 160.64 217.19 Pass - Major Risk R -40PB1 - R -40PB1 - R -40PB1 9,925.00 9,350.00 347.89 160.64 217.19 Pass - Major Risk CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 12/1/2009 2:30:04PM Page 2 of 24 COMPASS 2003.16 Build 71 . NM BAKER HUGHES INTEQ North America - ALASKA - BP 0 Prudhoe Bay PB R Pad R -26A - Slot 26A Plan 6, R -26BL1 Plan: Plan 6 Baker Hughes INTEQ Planning Report 01 December, 2009 0 bp EMI Baker Hughes INTEQ BAKER Baker Hughes INTEQ Planning Report 0 by INTEQ I Company: North America - ALASKA - BP Local Co- ordinate Reference: Wet R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Wellbore: Plan 6, R -26BL1 Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16 Single User Db Project Prudhoe Bay, North Slope, UNITED STATES illo Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB R Pad, TR -12 -13 Site Position: Northing: 5,975,706.22 ft Latitude: 70° 20' 29.100 N From: Map Easting: 637,446.42 ft Longitude: 148° 53' 4.328 W Position Uncertainty: 0.00 ft Slot Radius: 0 " Grid Convergence: 1.05 ° Well R -26A - Slot 26A, R -26A Well Position +N / -S 0.00 ft Northing: 5,976,732.49 ft Latitude: 70° 20' 39.340 N +E / -W 0.00 ft Easting: 636,626.41 ft Longitude: 148° 53' 27.733 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00 ft Weilbore Plan 6, R -26BL1 Magnetics Model Name Sample Date Declination Dip Angle Field Strength ( ( (nT) BGGM 11/25/2009 22.34 80.94 57,673 • Design Plan 6 Audit Notes: Version: Phase: PLAN Tie On Depth: 10,100.00 Vertical Section: Depth From (TVD) +NI-S +E/ -W Direction (ft) (ft) (ft) ( 52.90 0.00 0.00 135.00 12/1/2009 1:48:30PM Page 2 COMPASS 2003.16 Build 71 Mill Baker Hughes INTEQ BAKER NINNIES Baker Hughes INTEQ Planning Report 0 bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Wellbore: Plan 6, R -26BL1 Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16 Single User Db Survey Tool Program Date 12/1/2009 From To (ft) (ft) Survey (Wellbore) Tool Name Description 100.00 9,100.00 1 : Sperry-Sun BOSS gyro multi (R -26A) BOSS -GYRO Sperry-Sun BOSS gyro multishot 0 9,100.00 10,100.00 Plan 10 (Plan 10, R -26B) MWD MWD - Standard 10,100.00 11,825.00 Plan 6 (Plan 6, R- 26BL1) MWD MWD - Standard Planned Survey MD Inc Azi TVDSS N/S E_M Northing Easting DLeg V. Sec TFace (ft) ( °) ( °) (ft) (ft) (ft) (ft) (ft) (°/100ft) (ft) ( °) 10,100.00 98.18 77.25 8,772.12 2,043.74 991.45 5,978,793.80 637,580.37 4.38 - 744.08 - 162.70 TIP /KOP 10,150.00 97.80 94.92 8,765.12 2,047.09 1,040.64 5,978,798.05 637,629.49 35.00 - 711.67 90.00 2 10,200.00 91.58 111.34 8,761.00 2,035.79 1,088.97 5,978,787.63 637,678.02 35.00 - 669.50 110.00 10,212.00 90.05 115.25 8,760.83 2,031.04 1,099.99 5,978,783.08 637,689.12 35.00 - 658.35 111.35 3 10,272.00 86.48 135.96 8,762.68 1,996.33 1,148.48 5,978,749.26 637,738.23 35.00 - 599.52 100.00 4 10,300.00 86.53 145.78 8,764.39 1,974.67 1,166.10 5,978,727.94 637,756.24 35.00 - 571.75 90.00 10,372.00 87.11 171.01 8,768.45 1,908.37 1,192.35 5,978,662.13 637,783.69 35.00 - 506.31 89.40 w End of 35 Deg /100' DLS 10,400.00 86.77 174.36 8,769.94 1,880.65 1,195.91 5,978,634.48 637,787.75 12.00 - 484.18 96.00 10,500.00 85.63 186.33 8,776.60 1,781.05 1,195.31 5,978,534.90 637,788.97 12.00 - 414.18 95.82 10,522.00 85.40 188.97 8,778.32 1,759.32 1,192.39 5,978,513.11 637,786.45 12.00 - 400.88 95.02 6 10,600.00 86.28 179.63 8,783.99 1,681.83 1,186.57 5,978,435.54 637,782.04 12.00 - 350.20 -85.00 10,700.00 87.54 167.68 8,789.41 1,582.77 1,197.60 5,978,336.70 637,794.87 12.00 - 272.36 -84.32 10,772.00 88.51 159.09 8,791.89 1,513.89 1,218.16 5,978,268.21 637,816.68 12.00 - 209.11 -83.67 7 10,800.00 88.46 162.45 8,792.64 1,487.46 1,227.38 5,978,241.96 637,826.38 12.00 - 183.91 91.00 12/1/2009 1:48:30PM Page 3 COMPASS 2003.16 Build 71 gill Baker Hughes INTEQ BAKER NYWIES Baker Hughes INTEQ Planning Report 0 bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Wel'bore: Plan 6, R -26BL1 Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16 Single User Db Planned Survey MD Inc Azi TVDSS N/S EM/ Northing Easting DLeg V. Sec TFace (ft) ( °) ( °) (ft) (ft) (ft) (ft) (ft) ( ° /100ft) (ft) ( °) 10,872.00 88.34 171.09 8,794.66 1,417.47 1,243.84 5,978,172.28 637,844.11 12.00 - 122.77 90.91 0 8 10,900.00 88.05 167.74 8,795.54 1,389.96 1,248.98 5,978,144.88 637,849.75 12.00 -99.69 -95.00 11,000.00 87.07 155.77 8,799.81 1,295.25 1,280.20 5,978,050.76 637,882.69 12.00 -10.64 -94.89 11,100.00 86.23 143.78 8,805.68 1,209.15 1,330.36 5,977,965.59 637,934.41 12.00 85.71 -94.38 11,122.00 86.06 141.14 8,807.16 1,191.75 1,343.73 5,977,948.44 637,948.10 12.00 107.47 -93.68 9 11,200.00 86.92 131.80 8,811.94 1,135.37 1,397.30 5,977,893.05 638,002.68 12.00 185.21 -85.00 11,222.00 87.18 129.17 8,813.07 1,121.11 1,414.01 5,977,879.10 638,019.64 12.00 207.11 -84.43 10 11,300.00 87.87 119.82 8,816.45 1,077.02 1,478.16 5,977,836.19 638,084.58 12.00 283.65 -86.00 11,400.00 88.83 107.86 8,819.33 1,036.69 1,569.42 5,977,797.54 638,176.56 12.00 376.70 -85.60 11,472.00 89.56 99.25 8,820.34 1,019.84 1,639.35 5,977,781.96 638,246.77 12.00 438.06 -85.25 11 11,500.00 89.59 95.89 8,820.55 1,016.15 1,667.10 5,977,778.78 638,274.58 12.00 460.29 -89.50 11,600.00 89.71 83.89 8,821.17 1,016.35 1,766.91 5,977,780.80 638,374.37 12.00 530.73 -89.47 11,700.00 89.84 71.89 8,821.57 1,037.29 1,864.51 5,977,803.51 638,471.56 12.00 584.93 -89.40 11,722.00 89.87 69.25 8,821.63 1,044.61 1,885.25 5,977,811.21 638,492.17 12.00 594.42 -89.35 12 11,800.00 87.58 78.33 8,823.37 1,066.36 1,960.05 5,977,834.31 638,566.55 12.00 631.93 104.20 11,825.00 86.86 81.24 8,824.58 1,070.79 1,984.62 5,977,839.19 638,591.03 12.00 646.18 104.00 TD at 11825.00 - 2 7 /8" 12/1/2009 1:48:30PM Page 4 COMPASS 2003.16 Build 71 Mit II Baker Hughes INTEQ BAKER 0 HUGHES Baker Hughes INTEQ Planning Report bP INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Welibore: Plan 6, R -26BL1 Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16 Single User Db Targets Target Name - hit/miss target Dip Angle Dip Dir. TVD +NI -S +E/ -W Northing Easting - Shape ( °) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude R -26BL1 Target 2 0.00 0.00 8,872.90 1,294.54 1,277.49 5,978,050.00 637,880.00 70° 20' 52.071 N 148° 52' 50.404 W • - plan misses target center by 2.78ft at 10999.83ft MD (8872.71 TVD, 1295.40 N, 1280.13 E) - Point R -26BL1 Target 4 0.00 0.00 8,897.90 1,070.60 1,984.59 5,977,839.00 638,591.00 70° 20' 49.867 N 148° 52' 29.743 W - plan hits target center - Point R -268L1 Fault 1 0.00 0.00 72.90 2,299.05 1,427.84 5,979,057.00 638,012.00 70° 21' 1.950 N 148° 52' 46.005 W - plan misses target center by 8771.06ft at 10212.00ft MD (8833.73 TVD, 2031.04 N, 1099.99 E) - Polygon Point 1 72.90 2,299.05 1,427.84 5,979,057.00 638,012.00 Point 2 72.90 2,123.67 1,336.62 5,978,880.00 637,924.00 Point 3 72.90 1,982.01 1,316.03 5,978,738.00 637,906.00 Point4 72.90 2,123.67 1,336.62 5,978,880.00 637,924.00 R -26BL1 Fault 4 0.00 0.00 72.90 1,300.93 1,420.65 5,978,059.00 638,023.00 70° 20' 52.133 N 148° 52' 46.221 W - plan misses target center by 8791.95ft at 10400.00ft MD (8842.84 TVD, 1880.65 N, 1195.91 E) - Polygon Point 1 72.90 1,300.93 1,420.65 5,978,059.00 638,023.00 Point 2 72.90 1,090.22 1,456.82 5,977,849.00 638,063.00 Point 3 72.90 925.28 1,341.78 5,977,682.00 637,951.00 Point 4 72.90 1,090.22 1,456.82 5,977,849.00 638,063.00 • R -26BL1 Fault A 0.00 0.00 72.90 2,606.51 2,613.73 5,979,386.00 639,192.00 70° 21' 4.970 N 148° 52' 11.344 W - plan misses target center by 8905.27ft at 10272.00ft MD (8835.58 TVD, 1996.33 N, 1148.48 E) - Polygon Point 1 72.90 2,606.51 2,613.73 5,979,386.00 639,192.00 Point 2 72.90 2,212.56 2,715.58 5,978,994.00 639,301.00 Point 3 72.90 1,921.43 2,773.28 5,978,704.00 639,364.00 Point 4 72.90 1,070.88 2,133.63 5,977,842.00 638,740.01 Point 5 72.90 761.30 2,051.96 5,977,531.00 638,664.00 Point 6 72.90 1,070.88 2,133.63 5,977,842.00 638,740.01 Point 7 72.90 1,921.43 2,773.28 5,978,704.00 639,364.00 Point 8 72.90 2,212.56 2,715.58 5,978,994.00 639,301.00 R -26BL1 Target 1 0.00 0.00 8,855.90 1,701.24 1,189.88 5,978,455.00 637,785.00 70° 20' 56.071 N 148° 52' 52.962 W - plan misses target center by 3.06ft at I0580.36ft MD (8855.57 TVD, 1701.42 N, 1186.84 E) 12/1/2009 1:48:30PM Page 5 COMPASS 2003.16 Build 71 MI ill Baker Hughes INTEQ BAKER 0 HUGHES Baker Hughes INTEQ Planning Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Wellbore: Plan 6, R -26BL1 Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16 Single User Db - Point R -26BL1 Target 3 0.00 0.00 8,892.90 1,039.18 1,567.91 5,977,800.00 638,175.00 70° 20' 49.559 N 148° 52 41.919 W - plan misses target center by 2.04ft at 11397.62ft MD (8892.18 TVD, 1037.43 N, 1567.17 E) - Point R -26BL1 Fault 3 0.00 0.00 72.90 1,554.53 1,775.35 5,978,319.00 638,373.00 70° 20' 54.627 N 148° 52' 35.854 W - plan misses target center by 8794.93ft at 10372.00ft MD (8841.35 TVD, 1908.37 N, 1192.35 E) - Polygon Point 1 72.90 1,554.53 1,775.35 5,978,319.00 638,373.00 Point 2 72.90 1,229.82 1,316.32 5,977,986.00 637,920.00 Point 3 72.90 1,163.71 992.04 5,977,914.00 637,597.00 Point4 72.90 1,229.82 1,316.32 5,977,986.00 637,920.00 R -26BL1 Fault E 0.00 0.00 72.90 1,915.22 3,114.26 5,978,704.00 639,705.00 70° 20' 58.170 N 148° 51' 56.724 W - plan misses target center by 8936.57ft at 11825.00ft MD (8897.48 TVD, 1070.79 N, 1984.62 E) - Polygon Point 1 72.90 1,915.22 3,114.26 5,978,704.00 639,705.00 Point 2 72.90 2,245.09 3,729.42 5,979,045.00 640,314.00 Point 3 72.90 2,655.50 3,602.87 5,979,453.00 640,180.00 Point 4 72.90 2,245.09 3,729.42 5,979,045.00 640,314.00 R -26BL1 Fault 2 0.00 0.00 72.90 1,668.60 785.19 5,978,415.00 637,381.00 70° 20' 55.750 N 148° 53' 4.788 W - plan misses target center by 8773.96ft at 10200.00ft MD (8833.90 TVD, 2035.79 N, 1088.97 E) - Polygon Point 1 72.90 1,668.60 785.19 5,978,415.00 637,381.00 Point 2 72.90 1,707.29 1,186.99 5,978,461.00 637,782.00 Point 3 72.90 1,572.65 1,768.68 5,978,337.00 638,366.00 Point4 72.90 1,382.22 2,777.46 5,978,165.00 639,378.00 Point 5 72.90 1,572.65 1,768.68 5,978,337.00 638,366.00 Point 6 72.90 1,707.29 1,186.99 5,978,461.00 637,782.00 R -26B Polygon 0.00 0.00 72.90 1,904.00 163.33 5,978,639.00 636,755.00 70° 20' 58.066 N 148° 53' 22.960 W - plan misses target center by 8810.08ft at 10150.00ft MD (8838.02 TVD, 2047.09 N, 1040.64 E) - Polygon Point 1 72.90 1,904.00 163.33 5,978,639.00 636,755.00 Point 2 72.90 2,111.77 453.19 5,978,852.00 637,041.00 Point 3 72.90 2,138.29 973.80 5,978,888.00 . 637,561.00 Point 4 72.90 2,358.92 1,710.00 5,979,122.00 638,293.00 Point 5 72.90 2,333.91 2,752.80 5,979,116.00 639,336.00 Point 6 72.90 2,451.56 3,487.12 5,979,247.00 640,068.00 Point 7 72.90 2,258.24 3,556.62 5,979,055.00 640,141.00 Point 8 72.90 2,087.53 2,770.31 5,978,870.00 639,358.00 12/1/2009 1:48:30PM Page 6 COMPASS 2003.16 Build 71 rais Baker Hughes INTEQ BAKER HUGHES Baker Hughes INTEQ Planning Report 0 bP INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay ND Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Wel lbore: Plan 6, R -26BL1 Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16 Single User Db Point 9 72.90 2,182.50 1,840.82 5,978,948.00 638,427.00 Point 10 72.90 1,921.46 1,125.88 5,978,674.00 637,717.00 Point 11 72.90 1,883.06 489.03 5,978,624.00 637,081.00 Point 12 72.90 1,904.00 163.33 5,978,639.00 636,755.00 R -26BL1 Polygon 0.00 0.00 72.90 2,123.55 1,013.54 5,978,874.00 637,601.00 70° 21' 0.224 N 148° 52' 58.113 W - plan misses target center by 8761.75ft at 10212.00ft MD (8833.73 TVD, 2031.04 N, 1099.99 E) - Polygon Point 1 72.90 2,123.55 1,013.54 5,978,874.00 637,601.00 Point 2 72.90 1,304.56 1,111.64 5,978,057.00 637,714.00 Point 3 72.90 1,062.43 1,225.25 5,977,817.00 637,832.00 Point4 72.90 956.47 1,715.44 5,977,720.00 638,324.00 Point 5 72.90 1,031.68 2,583.02 5,977,811.00 639,190.00 Point 6 72.90 1,209.06 2,564.25 5,977,988.00 639,168.00 Point 7 72.90 1,140.40 1,721.80 5,977,904.00 638,327.00 Point 8 72.90 1,196.12 1,408.73 5,977,954.00 638,013.00 Point 9 72.90 1,347.98 1,308.48 5,978,104.00 637,910.00 Point 10 72.90 2,059.11 1,256.42 5,978,814.00 637,844.99 R -26BL1 Fault D 0.00 0.00 72.90 334.84 1,687.10 5,977,098.00 638,307.00 70° 20' 42.631 N 148° 52' 38.441 W - plan misses target center by 8846.85ft at 11500.00ft MD (8893.45 TVD, 1016.15 N, 1667.10 E) - Polygon Point 1 72.90 334.84 1,687.10 5,977,098.00 638,307.00 Point2 72.90 951.53 1,657.33 5,977,714.00 638,266.00 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name ( ( 2,513.00 2,512.91 1.115 13 -3/8 16 9,101.00 8,733.43 0.802 9 -5/8 12 11,825.00 8,897.48 2 7/8" 2 -7/8 4 -1/8 12/1/2009 1:48:30PM Page 7 COMPASS 2003.16 Build 71 Mill Baker Hughes INTEQ BAKER MONIES Baker Hughes INTEQ Planning Report 0 bP INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 © 72.90ft (generic drillinc Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drillinc Well: R -26A North Reference: True Wellbore: Plan 6, R -26BL1 Survey Calculation Method: Minimum Curvature Design: Plan 6 Database: EDM 2003.16 Single User Db Plan Annotations Measured Vertical Local Coordinates Depth Depth +N / -S +E/ -W (ft) (ft) (ft) (ft) Comment 10,100.00 8,845.02 2,043.74 991.45 TIP /KOP 10,150.00 8,838.02 2,047.09 1,040.64 2 10,212.00 8,833.73 2,031.04 1,099.99 3 10,272.00 8,835.58 1,996.33 1,148.48 4 10,372.00 8,841.35 1,908.37 1,192.35 End of 35 Deg /100' DLS 10,522.00 8,851.22 1,759.32 1,192.39 6 10,772.00 8,864.79 1,513.89 1,218.16 7 10,872.00 8,867.56 1,417.47 1,243.84 8 11,122.00 8,880.06 1,191.75 1,343.73 9 11,222.00 8,885.97 1,121.11 1,414.01 10 11,472.00 8,893.24 1,019.84 1,639.35 11 11, 722.00 8,894.53 1,044.61 1,885.25 12 11,825.00 8,897.48 1,070.79 1,984.62 TD at 11825.00 I Checked By: Approved By: Date: S 12/1/2009 1:48:30PM Page 8 COMPASS 2003.16 Build 71 r�aemeiTooNorn 3+' WELLBORE DETAILS: Plan 6, R -26BL1 REF62BICE NFORMAT 0 �'.■ Project: Prudhoe Bay n+aenamram n Site: PB R Pad MagnekF a Parent Wellbore: Plan 10, R-266 coardnateMlE)Refe�ence: welR- 26A- Sbt26A7rueNorlh BAKER 0 Well: R -26A 54angC 576733enT 16rGral(TVD)Relerence. Mean Sea Level HtlGHif �p Wellbore: Plan 6, R -266L1 06 6 . eosa° Tie on MD: 10100.00 U S cc p ce (VS)Reference: Slot - 26N0.00N, 0 00E) Plan: Plan 6 (R-26A/Plan 6, R- 268L1) Date Measured Depth Reference: 46:26A2, 6119800000 @ 72.90ft(genencdningng) Caloulotion Method: Mama Curvature INTEQ 2125 _-�� id.. - -- .- __-- - - -_ -_ 2040 ..N_l�i WELL DETAILS: R -26A nim.rsii.■ ,__■ Ground Level: 0.00 1955 II, -41/-S +Et -W Northing Easting Latitude Longitude Slot �' ©'•' 0.00 0.00 5976732.49 636626.41 70° 20' 39.340 N 148° 53' 27.733 W 26A 1870, _ SECTION DETAILS ANNOTATIONS 1785, Sec MD Inc Azi ssTVD 11.1/-S +FJ -0/ DLeg TFace VSec Target Annotation 1 10100.00 98.18 77.25 8772.12 2043.74 991.45 0.00 0.00 - 744.08 TIP /KOP 170 2 10150.00 97.80 94.92 8765.12 2047.09 1040.64 35.00 90.00 - 711.67 2 4 10272.00 86.48 115. 8762.68 .33 18.48 35.00 110.00 -599.52 3 1615 I,,, � 4 1027200 86.48 135.96 96 1996 8762.68 1996.33 114148.48 35.00 100.00 -599.52 4 5 10372.00 87.11 171.01 8768.45 1908.37 1192.35 35.00 90.00 - 506.31 End of 35 Deg/100' DLS 0.. 6 10522.00 85.40 188.97 8778.32 1759.32 1192.39 12.00 96.00 -400.88 6 v11530, illip • 7 10772.00 88.51 15809 8791.89 1513.89 1218.16 12.00 275.00 - 209.11 7 0000 ' - 11111pplPpor 8 10872.00 88.34 171.09 8794.66 1417.47 1243.84 12.00 91.00 - 122.77 8 '7:1445 9 11122.00 86.06 141.14 8807.16 1191.75 1343.73 12.00 265.00 107.47 9 10 11222.00 87.18 129.17 8813.07 1121.11 1414.01 12.00 275.00 207.11 10 t 11 11472.00 89.56 99.25 8820.34 1019.84 1639.35 12.00 274.00 438.06 11 0 1360- 12 11722.00 89.87 69.25 8821.63 1044.61 1885.25 12.00 270.50 594.42 12 13 11825.00 86.86 8124 8824.58 1070.79 1984.62 12.00 104.20 646.18 TD at 11825.00 '7'12751 1 AllA p 119 ■.,,. ',I.� R - 26BL . TargEr 1105 ■..iA�n'ti-i. 1021, V --- 935 N 5.00 1 12 Bso- - 850 935 1020 1105 1190 1275 1360 1445 1530 1615 1700 1785 1870 1955 2040 2125 2210 2295 2380 West( - )/East( +) (85 ft/in) 8550 8595 _8640 8685 End of: 5 Deg/ 100' 3LS �; 8730 R -2>iB1 1 Tarot 2 R- 26A/Plan 6, R -26BL 1 TIP/KOP - 2 3 , 4 6 R - 26BL1 Target I 8775 .. _ _ ' /' .4 1 .. i A 08820 7 8 9 1 ___ 0 1( ' t 11 12 \ '"D at 1825 00 y 8865 R -26BL1 Ttrget 3 R -26BL 1 Target 4 11 8911 H I 8955 m A 9000 m rn 5 9045 -765 -720 -675 -630 -585 -540 -495 -450 -405 -360 -315 -270 -225 -180 -135 -90 -45 0 45 90 135 180 225 270 315 360 405 450 495 540 585 630 675 720 765 810 855 900 945 990 Vertical Section at 135.00° (45 ft/in) Aamumsm Trewro, WELLBORE DETAILS: Plan 10, R -26B REFERENCEINFCRM#TICN / / Pro Prudhoe Ba Mayre�icNMA. T144° ■lam Site: PB RPad CoaNinatdlNlE)Reference: Well R- 266 - Sbt 266, True North 0 rnas5ea6ri�d Parent Wellbore: BAKER R -266 Well: R -266 shengN51fi6Z�sn7 Tie on MD: 9100.00 VSNcel(TV Sl- 2 6216/198 , a 0 0 E) 72.90fl(genencdnllinglg) NUGNES �' P Wellbore: Plan 10, R-2613 DeA,gle:80.94° Section (VS)Reference: Slot- 26A10.00N, 0 DOE) u 1 (_) Plan: Plan 610 (R - 26HIPIan 70, R - 266) Measured DeDIF Reference 46: 260261986 0 0:00 @ 72.90ft (genedc ddlling dg) CalcoWBon Method Minimum Curvature 1NTEQ 320o R 01 1 30 I I 00'■■■ ■■ ■ ■. ■f_ ;.■■ ■ ■ ■■ ■■ ■■1 2900 2700 2600 IU II1IIIIIIIIII I! FiiIUhIII iliiii EP 0 2111 1 /■EE' �1E _ �� � \ /E ■FETE■■■ ■. /■I� ■//i�iii:OL__ ■■N■.IE 2014 1.■ ■ ■.ME�\ . ■N1 1.E■ ■■ R %2%f� 119111"1111111,511141111111 1 ■ ■E , L MI\EEE ■ ■ ■ ■■■ ■ ■ ■ ■■ ■NIM ■1 l,� 1 „■ \ ] n 11500 4, ' '.' �,, �Ad� :::: R3 35 . � 1E /i II■■ ■■■■NMI �E AMEN ■_■ IWIROM■■■■/iEI 1100 i� ' 0/R ' �' ■ ■ ■ ■ ■.N■ ■• _�SU r a�da _ !, ■ ■ ■1 1 ii 1000IN•■ ■.N!'.■E= MEILIM ■_ INVE '.■.■ ■ ■ ■1 900 1■ 11"1 ■ ■■■ / /■� ;11 ■F,.■■..-.I■■.,'.' ` `' 811 1EiN .VI %.r./EMEI��!//EEEEEN���!����I■ EEC ■M111111 700 ■�l.■ ■■, ■� 1; • , l , R _ 1 ',/ 1 0 e 600 pr -200 -100 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 West( - )/East( +) (100 ft/in) Project: Prudhoe Bay ANTECOLLISION SETTINGS COMPANY DETAILS Nom Amen. -ALASKA •B7 ,��4 NORTNAMERICA af/� it Li 0 bP Site: PB R Pad ALASKA BAKER Well: R -26A Inter t hl Range From: MD, 0280 Depth Range From: 10100.00.00 0 To o 11825.00 camala4enMe4w4. Minimum.. -..,re Error syaem IscwsA HUGHES Results Limited By: Centre Distance: 1377.21 . Welltw7e: Plan 6, R - 26BL1 Reference: Plan: Plan #6 (R-26A/Plan 6, R- 268L1) Scan MO.! EwP�c;lConicam Plan: Plan 06 (R 26AIPlan 6, R 26BL1) wrong Mefn4: Rules Bawd 1NTEQ WELL DETAILS: R -26A Ground Level: 0.00 •NIS *E7-W Northing Fasting Latittude Longitude Slot From Colour To MD 0.00 0.00 5976732.49 636626.41 70 °20'39.340N 14r53'27.733W 26A SECTION DETNLS Sac MD Inc Ad TVD •WS •E/-W DLeg TFece VS. Target 0 1 10100.00 98.18 77.26 8845.04 204372 0 991.46 0 00 00 -744 06 _ 200 ` \_ 2 10150.00 97.80 94.92 8838.03 2047 08 1040 66 34.98 90.01 -711 65 _ -- 4 1021200 9005 13596 8835.55 299632 114050 35.00 10999 15850 4 10272.00 8648 13596 883558 19%32 114850 35.00 10000 59950 5 1037200 87.11 171 01 884136 1908.37 1192.37 35.00 90.01 506.29 I 184 ` \\ 30 6 10522 00 85 40 188 97 885123 1758.31 1192 42 12 00 9600 i 76 7 1077200 88 51 159 09 8864.82 151388 1218.18 12 00 -85 00 209 09 R- 26AIPIan 10, R -26B a me72oo 8830 7109 ee67se 1a17as z4385 1200 9097 1zz76 -- 168 ` I 9 11122.00 8606 147.14 88900 118113 134374 1200 -9501 10748 \�\ I I 10 1122200 8718 12917 8885 99 112109 147501 12.00 -8502 207.13 `\ 11 11472 00 8958 99.25 889327 1019.82 163935 72.00 -8599 438.07 12 11722.00 89.87 69.25 889454 1044.58 188525 1200 -89.50 590.45 �t 136 ` x ;` Il 13 11825 00 8688 81.24 889749 707076 1984 fit 1200 10422 64620 - 120 - \ \ 300 / \���� �' I* 104- � 88 _ NN 10 7Z ;�� - - -- i � q SURVEY PROGRAM A \ Date: 2009- 12- 01T00:00:00 Validated: Yes Version: �� _ _ � \ �� ,`Depth From Depth To Survey/Plan Tool �f // -''S:".. ,`� `�� ` 1,1: \ 100.00 9100.00 1: Sperry-Sun BOSS gyro multi6O86V$YRO 9100.00 10100.00 Plan #10 (Plan 10, R -268) M W D llittit � , \ 1 1Q 00_00 11825.00 Plan # (Pla 10, R -268) MWD l: 1� . 10172 LEGEND 90 278': I -R -06, R -06, R -06 V1 � III IIII � IIII I )JJJ I 1 / IIII IIIIIullll - R -06A R -06A R -06A V3 \. 32 -R-10, Plan #12, R -10A, Plan #12 V4 \ttitt as �' // - R -10 R -10 R-10 V1 \- R -21 R -21 R -21 V1 �` 80 // /////////if • R -21, R -21L1, R -21L1 VO • i 120 -R -21, R-21L1 01, R- 21L1-01 VO - R -22 R -22 R -22 V3 - �''� R -23, R-23, R -23 V1 __ 112 : R 23A, R 23A, R 23A V2 -R-24, R -24, R-24 V1 _ - - -_ ... .128 _ _ _ • R-26A, Plan 10, R-26B, Plan #10 VO � ���= _ 144 - - R -26A, R -26A, R -26A V1 \ � '\ , _ >� - R -27, R -27, R -27 V1 �� -_ 160 -_ — ' - R-35, R -35, R -35 V1 . 176 - R-36, R_36, R_36 V1 21t' 192 �Y 150 >R40,R40,R40V2 _ •R- 40PB1, R- 40PB1, R -40PB1 V14 180 - Plan #6 Travelling CylinderAzimuth (TFO +AZI) [ vs Centre to Centre Separation [16 Win] I BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB R Pad R -26A Plan 6, R -26BL1 Plan #6 Travelling Cylinder Report 01 December, 2009 � bp sw W A R ■ • BPPASSPORT • MOINES Travelling Cylinder Report 0 bp LNTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well R -26A - Slot 26A Project: Prudhoe Bay TVD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling rig) Reference Site: PB R Pad MD Reference: 46 : 26A 2/6/1986 00:00 @ 72.90ft (generic drilling rig) Site Error: 0.00ft North Reference: True Reference Well: R -26A Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan 6, R -26BL1 Database: EDM .16 - Anc Prod - WH24P Reference Design: Plan #6 Offset ND Reference: Offset Datum Reference Plan #6 Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 10,100.00 to 11,825.00ft Scan Method: Tray. Cylinder North Results Limited by: Maximum center - center distance of 1,377.21ft Error Surface: Elliptical Conic Survey Tool Program Date 12/1/2009 From To (ft) (ft) Survey ( Wellbore) Tool Name Description 100.00 9,100.00 1 : Sperry-Sun BOSS gyro multi (R -26A) BOSS -GYRO Sperry-Sun BOSS gyro multishot 9,100.00 10,100.00 Plan #10 (Plan 10, R -26B) MWD MWD - Standard 10,100.00 11,825.00 Plan #6 (Plan 6, R- 26BL1) MWD MWD - Standard Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter ! (ft) (ft) Name (in) (in) 2,513.00 2,512.91 1.115 13.375 16.000 9,101.00 8,733.43 0.802 9.625 12.000 11,825.00 8,897.49 2.875" 2.875 4.125 Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well - Wellbore - Design (ft) (ft) (ft) (ft) PB R Pad R -06 - R-06 - R -06 10,100.00 9,700.00 1,101.30 545.02 559.64 Pass - Major Risk R -06A - R -06A - R -06A 10,110.00 9,850.00 1,100.85 526.55 580.43 Pass - Major Risk R -10 - Plan #12, R -10A - Plan #12 11,693.72 11,025.00 236.20 694.59 - 451.89 FAIL - Major Risk R-10-R-10-R-10 11,825.00 9,075.00 864.50 610.25 750.67 Pass - Major Risk R -21 - R -21 - R -21 Out of range R -21 - R -21 L1 - R -21 L1 Out of range R -21 - R -21 L1 -01 - R -21 L1 -01 Out of range R -22 - R -22 - R -22 Out of range R -23 - R -23 - R -23 Out of range R -23A - R -23A - R -23A Out of range R -24 - R -24 - R -24 Out of range R -26A - Plan 10, R -26B - Plan #10 10,124.88 10,125.00 1.42 1.61 -0.15 FAIL - Major Risk R -26A - R -26A - R -26A Out of range R -27 - R -27 - R -27 Out of range R -35 - R -35 - R -35 Out of range R -36 - R -36 - R -36 10,350.00 9,625.00 604.46 292.79 316.80 Pass - Major Risk R -40 - R-40 - R -40 10,637.80 9,450.00 339.76 300.93 39.22 Pass - Major Risk R -40PB1 - R -4OPB1 - R -40PB1 10,637.80 9,450.00 339.76 300.93 39.22 Pass - Major Risk CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 12/1/2009 3:26:10PM Page 2 of 16 COMPASS 2003.16 Build 71 Alaska Department of Natural sources Land Administration System • Page 1 of/ / Alaska Mapper Land Records /Status Plats Recorder's Search State Cabins Natural Resources E- Alaska DNR Case Summary File Type: ADL File Number: 28279 8 Printable Case File Summary See Township, Range, Section and Acreage? New Search C) Yes 0 No LAS Menu 1 Case Abstract 1 Case Detail 1 Land Abstract File: ADL 28279 Search for Status Plat Updates As of 02/25/2010 Customer: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER - ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/19/1965 Total Acres: 2459.000 Date Initiated: 05/28/1965 Office of Primary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction: AA - NRB ASSIGNMENT APPROVED Meridian: U Township: 012N Range: 013E Section: 29 Section Acres: 640 Search Plats Meridian: U Township: 012N Range: 013E Section: 30 Section Acres: 588 Meridian: U Township: 012N Range: 013E Section: 31 Section Acres: 591 Meridian: U Township: 012N Range: 013E Section: 32 Section Acres: 640 Legal Description 05 -28 -1965 '' SALE NOTICE LEGAL DESCRIPTION C14 -90 T12N, R13E, UM29, 30, 31, 32 2,459.00 04 -01 -1997 * * * ** UNITIZED AND LEASE LEGAL DESCRIPTION * * * * * * ** ENTIRE LEASE COMMITTED TO PRUDHOE BAY UNIT PRUDHOE BAY UNIT TRACT 23 http: / /dnr.alaska.gov /projects /las /Case Summary.cfn ?FileType= ADL &FileNumber = 2827... 2/25/2010 Alaska Department of Natural1sources Land Administration System S Page 1 of/ 1 Afaska Mapper Land Records /Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28278 _ Printable Case File Summary See Township, Range, Section and Acreage? New Search O Yes 0 No LAS Menu 1 Case Abstract 1 Case Detail 1 Land Abstract I File: ADL 28278 Search for Status Plat Updates As of 02/25/2010 Customer: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER - ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/19/1965 Total Acres: 2560.000 Date Initiated: 05/28/1965 Office of Primary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction: AA -NRB ASSIGNMENT APPROVED Meridian: U Township: 012N Range: 013E Section: 27 Section Acres: 640 Search Plats Meridian: U Township: 012N Range: 013E Section: 28 Section Acres: 640 Meridian: U Township: 012N Range: 013E Section: 33 Section Acres: 640 Meridian: U Township: 012N Range: 013E Section: 34 Section Acres: 640 Legal Description 05 -28 -1965 * ** SALE NOTICE LEGAL DESCRIPTION * ** C14- 89 T12N, R13E, UM27, 28, 33, 34 2,560.00 End of Case Summary Last updated on 02/25/2010. http://dnr.alaska.gov/projects/las/Case Summary.cfm?FileType=ADL&FileNumber=2827... 2/25/2010 • • TRANSMITTAL LETTER CHECKLIST WELL NAME /GAL/ 0?6 PTD# o2I1>O�S Development Service Exploratory Stratigraphic Test Non - Conventional Well FIELD: /.e d AY POOL: �.G V £/G Circle Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ADD -ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well , Permit No. (If last two digits in API No. . Production / injection should API number are continue to be reported as a function of the original API number between 60 -69) stated above. PILOT HOLE In accordance with 20 AAC 25.005(0, 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. Should conventional core be acquired in this well, representative chip samples from each foot of core must be submitted to the Commission in accordance with 20 AAC 25.071. Non - Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 2/1/2010 Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 Well Name: PRUDHOE BAY UNIT R -26B Program DEV Well bore seg ❑ PTD#: 2100250 Company BP EXPLORATION (ALASKA) INC Initial Class /Type DEV / PEND GeoArea 890 Unit 11650 _ On /Off Shore On Annular Disposal ❑ Administration 1 1 Permit fee attached NA 2 Lease number appropriate Yes 1 3 Unique well name and number Yes - - 4 Well located in a defined pool Yes I 5 Well located proper distance from drilling unit boundary Yes 1 6 Well located proper distance from other wells Yes 7 Sufficient acreage available in drilling unit Yes 2560 acres. 8 If deviated, is wellbore plat included Yes 9 Operator only affected party Yes I 110 Operator has appropriate bond in force Yes Blanket Bond # 6194193. 11 Permit can be issued without conservation order Yes Appr Date 12 Permit can be issued without administrative approval Yes ACS 2/25/2010 13 Can permit be approved before 15 -day wait Yes • 14 Well located within area and strata authorized by Injection Order # (put 10# in comments) (For NA 15 All wells within 1/4 mile area of review identified (For service well only) NA 116 Pre - produced injector: duration of pre production less than 3 months (For service well only) NA 17 Nonconven. gas conforms to AS31.05.030(j.1.A),(j.2.A -D) NA 18 Conductor string provided NA Conductor set in R -26A Engineering 19 Surface casing protects all known USDWs NA Surface casing set in R -26A 120 CMT vol adequate to circulate on conductor & surf csg NA Surface casing cemented 121 CMT vol adequate to tie -in long string to surf csg NA Production casing set in R -26A 22 CMT will cover all known productive horizons Yes OH slotted liners planned in production zone 123 Casing designs adequate for C, T, B & permafrost Yes 24 Adequate tankage or reserve pit Yes Rig equipped with Steel pits. All waste to approved disposal wells. 1 25 If a re- drill, has a 10 -403 for abandonment been approved Yes I26 Adequate wellbore separation proposed Yes Proximity analysis performed. No issues. I27 If diverter required, does it meet regulations NA Wellhead in place. BOP will be rigged up. Appr Date 28 Drilling fluid program schematic & equip list adequate Yes Max fm pressure= 3200 psi (7.0 ppg ) Will drill with 8.6 ppg mud. GLS 2/26/2010 1129 BOPEs, do they meet regulation Yes 30 BOPE press rating appropriate; test to (put psig in comments) Yes MASP= 2320 psi Will test BOP to 3500 psi. • 31 Choke manifold complies w /API RP -53 (May 84) Yes 32 Work will occur without operation shutdown Yes 1 33 Is presence of H2S gas probable Yes H2S on R pad. Rig has sensors and alarms. 34 Mechanical condition of wells within AOR verified (For service well only) NA 35 Permit can be issued w/o hydrogen sulfide measures No Max level H2S on R Pad is 2200ppm on well R -19 (8/21/96). Geology 36 Data presented on potential overpressure zones NA Appr Date 37 Seismic analysis of shallow g as zones NA ACS 2/25/2010 38 Seabed condition survey (if off - shore) NA 139 Contact name /phone for weekly progress reports [exploratory only] NA Geologic Engineering Date: Date ' Date Commissioner: •• .fission- :` oner • • Well History File APPENDX infotrriation of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of info! nation. 411 410 tapescan.txt * * ** REEL HEADER * * ** MWD 10/07/09 BHI 01 LIS Customer Format Tape * * ** TAPE HEADER * * ** MWD 10/05/04 3134598 01 3" CTK * ** LIS COMMENT RECORD * ** Remark File Version 1.000 11111111111111111 Extract File: ldwg.las Version Information VERS. 1.20: CWLS log ASCII Standard - VERSION 1.20 WRAP. NO: One line per frame well Information Block #MNEM.UNIT Data Type Information STRT.FT 8952.5000: Starting Depth STOP.FT 12302.0000: Ending Depth STEP.FT 0.5000: Level Spacing NULL. - 999.2500: Absent Value COMP. COMPANY: BP Exploration (Alaska), Inc. WELL. WELL: R -26B FLD . FIELD: Prudhoe Bay Unit LOC . LOCATION: 70 deg 20' 39.340 "N 148 deg 53' 27.733 "W CNTY. COUNTY: North Slope Borough STAT. STATE: Alaska SRVC. SERVICE COMPANY: Baker Hughes INTEQ TOOL. TOOL NAME & TYPE: 3" CTK DATE. LOG DATE: 04 May 2010 API . API NUMBER: 500292154701 -Parameter Information Block #MNEM.UNIT Value Description SECT. 32 Section TOWN.N T12N Township RANG. R13E Range PDAT. MSL Permanent Datum EPD .F 0 Elevation Of Perm. Datum LMF . DF Log Measured from FAPD.F 72.90 Feet Above Perm. Datum DMF . DF Drilling Measured From EKB .F 0 Elevation of Kelly Bushing EDF .F 72.90 Elevation of Derrick Floor EGL .F 0 Elevation of Ground Level Page 1 alp - va 1'9996 • tapescan.txt CASE.F N/A Casing Depth OS1 . DIRECTIONAL Other Services Line 1 Remarks (1) All depths are Measured Depths (MD) unless otherwise noted. (2) All depths are Bit Depths unless otherwise noted. (3) All True vertical Depths ( TVDSS) are subsea corrected. (4) All Formation Evaluation data is realtime data. (5) Baker Hughes INTEQ utilized CoilTrak downhole tools and the Advantage surface system to log this well.. (6) Tools ran in the string included Casing Collar Locator, an Electrical Disconnect and Circulating Sub, a Drilling Performance Sub (Inner and Outer Downhole Pressure, vibration and Downhole weight on Bit), a Directional and Gamma Sub, and a Hydraulic Orienting Sub with a Near Bit Inclination Sensor. (7) Data presented here is final and has been depth adjusted to a Primary Depth Control (PDC) log above the Kick off Point of 9210 ft MD provided by Schlumberger OH GR dated 23 Feb 1986 per Cole Able with BP Exploration (Alaska), Inc. The MWD data is now the PDCL for well R -26B. (8) The sidetrack was drilled from R -26A through a milled window in a 7 inch liner. Top of window 9215 ft.MD (8773.4 ft.TVDSS) Bottom of window 9223 ft.MD (8781.3 ft.TVDSS) (9) Tied to R -26A at 9200 feet MD (8758.6 feet TVDSS). (10) Baker Hughes INTEQ run 2 was used to downsqueeze cement to abandon perfs and secure a whipstock. (11) The resistivity interval from 9223 ft. to 9602 ft. MD (8781.3 ft. to 8895.3 ft. TVDSS) was logged on run 5, 11 1/2 hours after drilling. Data has been correlated to drilled gamma ray data and depth shifted +3 feet. (12) The resistivity interval from 10005 ft. to 10128 ft. MD (8796.8 ft. to 8781.3 ft. TVDSS) was logged on run 9, 8hours after dilling. The data has been correlated to drilled gamma ray and depth shifted +4 feet. (13) The resistivity interval from 10005 ft. to 10045 ft. MD (8796.8 ft. to 8789.5 ft. TVDSS) was logged in 3 3/16 inch casing. (14) The interval from 12266 ft to 12300 ft MD (8806.8 ft. to 8807.7 ft. TVDSS) was not logged due to sensor to bit offset at well TD. MNEMONICS: GRAX -> Gamma Ray [MWD] (MWD -API units) ROP AVG -> Rate of Penetration, feet /hour RACLX -> Resistivity (AT)(LS)400kHz- Compensated Borehole Corrected (OHMM) RACHX -> Resistivity (AT)(LS)2MHz- Compensated Borehole Corrected (OHMM) RPCLX -> Resistivity (PD)(LS)400kHz- Compensated Borehole Corrected (OHMM) RPCHX -> Resistivity (PD)(LS)2MHz- Compensated Borehole Corrected (OHMM) TVDSS -> True vertical Depth (Subsea) CURVE SHIFT DATA BASELINE, MEASURED, DISPLACEMENT 9077.86, 9079.37, ! 1.5127 9082.61, 9084.34, ! 1.72949 9098.61, 9100.34, ! 1.72949 9131.36, 9133.52, ! 2.16113 9139.36, 9141.74, ! 2.37793 9142.82, 9145.2, ! 2.37793 9146.93, 9149.09, ! 2.16113 Page 2 • i tapescan.txt 9151.03, 9152.55, ! 1.51367 9172.34, 9173.85, ! 1.51367 9179.04, 9180.99, ! 1.94629 9181.2, 9182.93, ! 1.72949 9185.53, 9187.04, ! 1.51367 9187.26, 9188.77, ! 1.51367 9193.09, 9193.96, ! 0.864258 9200.28, 9202.23, ! 1.94531 9204.82, 9206.98, ! 2.16113 EOZ END ! BASE CURVE: GROH, OFFSET CURVE: GRAX Tape Subfile: 1 101 records... Minimum record length: 10 bytes Maximum record length: 132 bytes * * ** FILE HEADER * * ** MWD .001 1024 * ** LIS COMMENT RECORD * ** Remark File version 1.000 The data presented here is final and has been depth adjusted to a Primary Depth Control (PDC) log above the Kick off Point of 9210 feet MD provided by schlumberger OH GR dated 6 Apr 2010 per Allison Green with BP Exploration (Alaska), Inc. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale units: Feet Frame spacing: 0.500000 Frame spacing units: [F ] Number of frames per record is: 36 One depth per frame (value= 0) Datum Specification Block Sub -type is: 1 FRAME SPACE = 0.500 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool code Samples units size Length Page 3 411 110 tapescan.txt 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 187 Tape File Start Depth = 8952.500000 Tape File End Depth = 12302.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet * * ** FILE TRAILER * * ** Tape Subfile: 2 200 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * FILE HEADER * * ** MWD .002 1024 * ** LIS COMMENT RECORD * ** 1111111111111111111 Remark File version 1.000 This file contains the raw - unedited field MWD data. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Loci Depth Scale Units: Feet Frame spacing: 0.250000 Frame spacing units: [F ] Number of frames per record is: 36 one depth per frame (value= 0) Datum Specification Block Sub -type is: 1 FRAME SPACE = 0.250 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool Code Samples units size Length Page 4 • S tapescan.txt 68 1 GR MWD 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 373 Tape File Start Depth = 8951.000000 Tape File End Depth = 12299.750000 Tape File Level Spacing = 0.250000 Tape File Depth Units = feet ** * FILE TRAILER * ** Tape Subfile: 3 386 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * ** TAPE TRAILER * * ** MWD 10/05/04 3134598 01 * ** REEL TRAILER * * ** MWD 10/07/09 BHI 01 Tape subfile: 4 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes 0 Tape subfile 1 is type: LIS 0 Tape Subfile 2 is type: LIS DEPTH GR ROP RAD RAS RPD RPS Page 5 . I tapescan.txt 8952.5000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 8953.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 12302.0000 - 999.2500 34.4977 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 8952.500000 Tape File End Depth = 12302.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet 0 Tape Subfile 3 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 8951.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 8951.2500 57.6000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 12299.7500 - 999.2500 107.4000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 8951.000000 Tape File End Depth = 12299.750000 Tape File Level Spacing = 0.250000 Tape File Depth Units = feet 0 Tape Subfile 4 is type: LIS Page 6
