The URL can be used to link to this page

Home My WebLink About211-0927. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU C-10B Mill CIBPs Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 211-092 50-029-20371-02-00 13970 Surface Intermediate Liner Liner Liner 9015 2633 8476 2072 1086 3120 13955 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-3/16" x 2-7/8" 9015 33 - 2666 29 - 8505 8328 - 10400 10225 - 11311 10845 - 13965 33 - 2666 29 - 6743 6642 - 8403 8235 - 9040 8823 - 9015 13370 2670 4760 5410 7500 10530 None 5380 6870 7240 8430 10160 11960 - 13940 4-1/2" 12.6# L-80 27 - 10233 9025 - 9016 Conductor 80 20" x 30" 34 - 114 34 - 114 4-1/2" Baker S3 Packer 10178 8190 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY, PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028305, 0028310 27 - 8242 N/A N/A 328 723 32263 13613 92 596 700 550 1576 739 N/A 13b. Pools active after work:Prudhoe Oil No SSSV Installed 10178, 8190 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 11:55 am, Jun 06, 2024 Digitally signed by Aras Worthington (4643) DN: cn=Aras Worthington (4643) Date: 2024.06.05 13:42:45 -08'00' Aras Worthington (4643) RBDMS JSB 061124 DSR-6/7/24WCB 8-29-2024 ACTIVITY DATE SUMMARY 5/23/2024 LRS #1 1.5" CT .134" WT - Job Scope: Mill 2 CIBPs and chase to TD MIRU, MU YJ 1.69" Milling assembly w/ 2.30 venturi burn shoe (OAL 24') Bullhead well w/ 140 bbls 1@ KCL w/ safelube and 38 bbl diesel. Reduced WHP from 2375 to 0 psi. RIH. Dry tag CIBP @ 12611' CTM. Establish free spin @ 1.2 bpm @ 2350 psi. Stall @ 12611'. Start milling @ 12610' ctm 300# DP and ~500 lbs WOB. ***Cont. on 5/24/24*** 5/24/2024 LRS #1 1.5" CT .134" WT - Job Scope: Mill 2 CIBPs and chase to TD (Cont from WSR 5/23/24) Cont milling CIBP w/ 2.30" venturi burn shoe from 12610'. ~50 psi DP on motor and ~800# WOB. Unable to mill ahead past 11611' after 4.5 hrs total time on bttm. Able to only achieve max of 75 psi DP on motor. POH to check shoe. Recovered metal fines and dehydrated schmoo. MU new 2.3" burn shoe. RIH. Tag CIBP 12610 CTMD. Work through the plug and chase to 12,985 CTMD, attempted to mill through without success. POOH. Recovered the core of the plug and metal shavings. MU 2.27 4 bladed junk mill. RIH. Drill about gas release on flowline. Went over emergency contacts with new personel. Tag lower plug @ 12988'. Attempt to mill for 3 hrs w/o success. Only able to achieve 25-50 psi motor work even when spudding bttm. Appears mill is spinning on plug parts on lower plug. Trip to PU venturi burn shoe. ***Cont on 5/25/24*** 5/25/2024 LRS #1 1.5" CT .134" WT - Job Scope: Mill 2 CIBPs and chase to TD (Cont from WSR 5/24/24) Cont. POH after attempt to mill lower plug. Mill had no wear except two small chips @ gauge. RIH w/ 1.69" YJ BHA w/ venturi junk basket and 2.30 burn shoe OAL 24'. Tag and start milling @ 12988'. No progress made, POOH. Found popped burst disc in circ sub. Swap Burst disc and motor. RIH w/ 1.69" YJ BHA w/ venturi junk basket and 2.30 burn shoe OAL 24'. Tag and start milling @ 12986'. No Progress. POOH. Little wear on shoe. Remove motor and test BHA - burst disc not sheared. Remove circ sub and add Tempress agitator. Surface test motor and agitator. RIH w/ 1.69" YJ BHA CTC, BPV, Jar, Disc., tempress agitator, motor, venturi junk basket and 2.30 burn shoe (OAL 22.87') ***Cont on 5/26/24*** 5/26/2024 LRS #1 1.5" CT .134" WT - Job Scope: Mill 2 CIBPs and chase to TD (Cont from WSR 5/25/24) Continue milling on lower CIBP @ 12988'. Broke thru the plug @ 3.75 hrs of milling. Attempt to chase to PBTD. Unable to push plug past 13370' motor is locked up and have ~1.5K extra drag. Trip to TOL. Attempt to turn motor in 3-1/2 liner and 4-1/2" Tbg - Stalled. Continue POH and check wall thickness ea 1000' and highest wear areas. Mill had wear on the gauge, face was good. Freeze protected the coil and a 12 bbl cap of diesel on the existing freeze protect. RDMO. ***Job Complete*** SL to set dream catcher prior to pop. 5/26/2024 ***WELL S/I ON ARRIVAL*** RAN 4-1/2" BLB, 3.80" GAUGE RING TO 10,250' SLM SET 4-1/2" X-LOCK / DREAMCATCHER @ 10,158' MD (40" OAL) RAN 4-1/2" CHECK SET S/D @ 10,158' MD (checkset sheared) ***WELL TURNED OVER TO PAD OP*** Daily Report of Well Operations PBU C-10B ) Continue milling on lower CIBP @ 12988'. Broke thru the plug @ 3.75 hrs of milling.g@ g@ g Attempt to chase to PBTD. Unable to push plug past 13370' motor is locked up and have ~1.5K extra drag. David Douglas Hilcorp Alaska, LLC Sr. Geotechnician 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 777-8337 E-mail: david.douglas@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Date: 09/02/2022 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20220902 Well API #PTD #Log Date Log Company Log Type Notes AOGCC Eset # END 3-11 50029218480000 188087 8/1/2022 Halliburton CALIPER + Report KALOTSA 4 50133206650000 217063 7/18/2022 Halliburton PPROF + Processing KBU 22-06Y 50133206500000 215044 7/14/2022 Halliburton PPROF + Processing KTU 24-06H 50133204900000 199073 7/21/2022 Halliburton PPROF + Processing KU 24-05B 50133206830000 219072 7/20/2022 Halliburton PPROF + Processing MPU C-24A 50029230200100 209134 7/28/2022 Halliburton COIL FLAG MPU I-17 50029232120000 204098 7/19/2022 Halliburton FREEPOINT NS-10 50029229850000 200182 7/23/2022 Halliburton CALIPER + Report NS-32 50029231790000 203158 7/24/2022 Halliburton CALIPER + Report PBU 18-02C 50029207620300 213009 7/14/2022 Halliburton CAST/CBL PBU C-10B 50029203710200 211092 7/15/2022 Halliburton PPROF + Processing PBU L5-03 50029236230000 219033 7/25/2022 Halliburton PPROF + Processing Please include current contact information if different from above. T36973 T36974 T36975 T36976 T36977 T36978 T36979 T36980 T36981 T36982 T36983 T36984 PBU C-10B 50029203710200 211092 7/15/2022 Halliburton PPROF + Processing Kayla Junke Digitally signed by Kayla Junke Date: 2022.09.07 11:00:16 -08'00' By Samantha Carlisle at 12:14 pm, Aug 23, 2022 Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:211-092 6.50-029-20371-02-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 13970 12600 9022 10178 None 12600, 12950 8190 Casing: Length: Size: MD: TVD: Burst: Collapse: Conductor 80 20" x 30" 34 - 114 34 - 114 Surface 2633 13-3/8" 33 - 2666 33 - 2666 5380 2670 Intermediate 8476 9-5/8" 29 - 8505 29 - 6743 6870 4760 Liner 2072 7" 8328 - 10400 6642 - 8403 7240 5410 Liner 1086 4-1/2" 10225 - 11311 8235 - 9040 8430 7500 Perforation Depth: Measured depth: 11960 - 13940 feet True vertical depth:9025 - 9016 feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# L-80 27 - 10233 27 - 8242 10178 8190Packers and SSSV (type, measured and true vertical depth) 4-1/2" Baker S3 Packer Liner 3120 10845 - 13965 8823 - 9015 10160 10530 12. Stimulation or cement squeeze summary: Intervals treated (measured): N/A Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 2683004472 13824942 1350 6197 1758 383 Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Wyatt Rivard wrivard@hilcorp.com Authorized Name:Stan Golis Authorized Title: Authorized Signature with Date:Contact Phone:907.777.8547 Treatment descriptions including volumes used and final pressure: 13. Sr. Area Operations Manager Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP SPLUG 16. Well Status after work:Oil 5 Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured9014 Sundry Number or N/A if C.O. Exempt: 320-484 No SSSV Installed Junk Packer Printed and Electronic Fracture Stimulation Data 5 Operations shutdown Change Approved Program N/A Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend 5Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well 3.Address: 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 7.Property Designation (Lease Number):PBU C-10B 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations ADL 0028310, 0028305 3-1/2" x 3-3/16" x 2-7/8" 55Extended Perf w CTU By Samantha Carlisle at 8:27 am, Jun 21, 2021 Digitally signed by Stan Golis (880) DN: cn=Stan Golis (880), ou=Users Date: 2021.06.21 08:00:37 -08'00' Stan Golis (880) DSR-6/21/21 SFD 6/21/2021RBDMS HEW 6/21/2021 MGR29JUL2021 ACTIVITY DATE SUMMARY 6/6/2021 CTU #6 w/1.75" CT Job Objective: Extended Add Perf MIRU CTU, MU PDS logging tools and T-bird MHA, L&K well with slick 1% KCL w/SL. RIH with logging tools and tag plug at 12,608' with 4k down. Log OOH and flag pipe at 11,960', continue logging up to LTP at 10,800'. Pooh w/logging BHA. Good data, + 5ft correction verified by OE. Corrected EOP = 11,953.88'. FC well & monitor well with trip sheet while circulating KCI across flow cross through trip tank. Deployed 250' of HES 2" Maxforce guns (60 deg phasing, 6 spf, swell 2.171", 7 grams). RIH w/HES Gun Run # 1. ...Job in progress... 6/7/2021 CTU #6 w/1.75" CT Job Objective: Extended Add Perf Continue RIH w/HES Gun Run # 1. At flag, corrected EOP = 11,953.88'. Correct counter to bottom shot = 12,213.46'. PUH 3.46'. Perforated interval 11,960' - 12,210'. Pooh w/HES guns. Lay down 250' of HES 2" Maxforce guns. RDMO CTU6. ***Job Complete*** Daily Report of Well Operations PBU C-10B Operator Name:2. Exploratory Development Service 5 Permit to Drill Number:211-092 6.API Number:50-029-20371-02-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Field/Pools:9. Well Name and Number: ADL 0028310 Property Designation (Lease Number):10. 8. PBU C-10B 7.If perforating: What Regulation or Conservation Order governs well spacing in this pool? Will planned perforations require a spacing exception? Stratigraphic Current Well Class:4. Type of Request:1.Abandon Plug Perforations 5 Fracture Stimulate Repair Well Operations shutdown Extended Perforating w Op Shutdown GAS GSTORWAG SPLUG Abandoned Oil 5 WINJ Exploratory Development 5StratigraphicService WDSPL 12. Attachments: PRESENT WELL CONDITION SUMMARY 13970 Effective Depth MD: 13cr80 11. 12/2/2020 Commission Representative: 15. Suspended Contact Name: Wyatt Rivard Contact Email: wrivard@hilcorp.com Authorized Name: Stan Golis Authorized Title:Operations Manager Authorized Signature: Plug Integrity BOP Test Mechanical Integrity Test Location Clearance Other: Yes No Spacing Exception Required?Subsequent Form Required: Approved by:COMMISSIONER APPROVED BYTHE COMMISSION Date: 5OtherAlter Casing Pull Tubing Conditions of approval: Notify Commission so that a representative may witness Sundry Number: COMMISSION USE ONLY 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approval. Detailed Operations Program Packers and SSSV Type: No SSSV Installed Packers and SSSV MD (ft) and TVD (ft): Perforation Depth MD (ft):Tubing Size: Size Total Depth MD (ft):Total Depth TVD(ft): 9015 Effective Depth TVD:Plugs (MD):Junk (MD): Other Stimulate Re-enter Susp Well Suspend Plug for Redrill 5Perforate Perforate New Pool 10178, 8190 No SSSV Installed Date: Liner 3120 3-1/2" x 3-3/16" x 2-7/8" 10845 - 13965 8823 - 9015 10160 10530 Well Status after proposed work: 16. Verbal Approval: 5 Change Approved Program 34 -114 29 - 8505 29 - 6743 14. Estimated Date for Commencing Operations: BOP Sketch 33 - 2666 Structural 7240 Proposal Summary 13. Well Class after proposed work: 4-1/2" Baker S3 Packer 12360 - 13940 9023 - 9016 4-1/2" 12.6#27 - 10233 Production 12600 9023 12600, 12950 33 - 2666 2670 9-5/8" 7" Contact Phone:(907)777-8547 Date: 5410 2633 538013-3/8"Conductor 4760 GINJ 5 Post Initial Injection MIT Req'd? Yes No 5 Comm. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 80 20" x 30"34 - 114 Surface 8476 6870 Intermediate 2072 8328 - 10400 6642 - 8403 1086 4-1/2" 10225 - 11311 8235 - 9040 8430 7500 Address:3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 3. No 5Yes Casing Length MD TVD Burst Tubing Grade:Tubing MD (ft):Perforation Depth TVD (ft): Collapse MPSP (psi): Wellbore Schematic 2430 Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 03/2020 Approved application is valid for 12 months from the date of approval. By Samantha Carlisle at 10:46 am, Nov 16, 2020 320-484 Digitally signed by Stan Golis DN: cn=Stan Golis, ou=Users Date: 2020.11.16 09:32:35 - 09'00' Stan Golis DSR-11/17/2020DLB11/16/2020 X ; ADL0028305 DLB MGR18NOV2020 10-404Yeon Required? C 11/19/2020 dts 11/18/2020 JLC 11/18/2020 RBDMS HEW 11/19/2020 Plug and Add Perf C-10B PTD:211-092 Well Name:C-10B CTU Plug & Add Perf API Number:50-029-20371-02 Current Status:Producing Rig:CTU & Surface Deployed TCP Guns Estimated Start Date:12/02/2020 Estimated Duration:3days Reg.Approval Req’std?N/A Date Reg. Approval Rec’vd:N/A Regulatory Contact:Abbie Barker Permit to Drill Number:2110920 First Call Engineer:Wyatt Rivard (907) 777-8547 (O)(509) 670-8001 (M) Second Call Engineer:Noel Nocas (907) 777-8449 (O)(907) 947-9533 (M) AFE Number:2024091 IOR 20 Current Bottom Hole Pressure:3310 psi @ 8,800’ TVD 7.3 PPGE | (Average Ivishak BHP) Maximum Expected BHP:3310 psi @ 8,800’ TVD 7.3 PPGE | (Average Ivishak BHP) Max. Anticipated Surface Pressure:2430psi (Based on 0.1 psi/ft. gas gradient) Last SI WHP:2336 psi (Taken on 5/5/2016) Min ID:2.36” ID Seal Assembly @ 10843’ MD Max Angle:95 Deg @ 12677’ Reference Log:MCNL-GR-CCL Dated 9-26-2011 Brief Well Summary: A 2010 sidetrack into Z1B, C-10B was completed with 450' of perfs and flowed full time until early 2014, where the well was cycled. In 2014 the decision was made to set a CIBP and shut off all the open perfs then add 170' of additional perforations. Intially the well made 1300 bopd, but when it was shut in for a SSV failure and came back on, the rates had dropped by half and continued a downward trend. Another attempt was made to cycle the well, but this did not give any notable performance boost. In May 2016 a CIBP was set to isolate all open perforates and 60' of stage perfs were shot up hole. The well required PBGL so later in 2016, 120' of perforations were added to increase the rate and allow the well to flow on its own. The well's current rates are 100 bopd, 20bwpd and 6.7 mmscf. The goal of this program is to adperfs and increase production. Objective:Utilize CTU to surface deploy TCP guns then convey to bottom with CTU to add new perfs and improve fluid rates. Sundry Procedure (Approval Required to Proceed): Note: The well will be killed and monitored before making up the initial perfs guns. This is generally done during the drift/logging run. This will provide guidance as to whether the well will be killed by bullheading or circulating bottoms up throughout the job. If pressure is seen immediately after perforating, it will either be killed by bullheading while POOH or circulating bottoms up through the same port that opened to shear the firing head. Coil Tubing 1. MIRU Coiled Tubing Unit w/ 1.75“coil and spot ancillary equipment. 2. MU GR/CCL and drift. 3. RIH and tag CIBP at 12600’ MD 4. Log up, stopping to paint flag 5. POOH and confirm good data, obtain correction. 6. Bullhead 230 bbls of 8.4 ppg 1% KCl or 8.5 ppg seawater down the tubing to the formation. a. Wellbore volume = 10825’ X .0152bpf + .0076 x 1500= 186 bbls 7. Confirm well is dead. Freeze protect tubing as needed. Plug and Add Perf C-10B PTD:211-092 8. At surface, prepare for deployment of TCP guns. Assure excess fluids available if needed to keep hole full. 9. Confirm well is dead. Bleed any pressure off to returns tank. Kill well w/8.4 ppg 1% KCl or 8.5 ppg seawater as needed. Maintain continuous hole fill taking returns to tank until lubricator connection is reestablished. 10. Pickup 1.75” safety joint and TIW valve and space out before MU guns. Review well control steps with crew prior to breaking lubricator connection and commencing makeup of TCP gun string. Once the safety joint and TIW valve have been spaced out, keep the safety joint/TIW valve readily accessible near the working platform for quick deployment if necessary. 11. Break lubricator connection at QTS and begin makeup of TCP guns and blanks per Table 1: C-10B Proposed Ad-Perf Gun Runs below. Gun Run #Perf Top Perf Bottom Perf Length 1 ±11957 ±11989 ±32 ±12063 ±12127 ±64 ±12143 ±12175 ±32 Total ±128 Table 1: C-10B Proposed Ad-Perf Gun Runs 12. RIH with Gun Run 1 and correlated to flag. Contact OE Wyatt Rivard 1(509) 670-8001 or Noel Nocas at 1(907) 947-9533 prior to perforating for final approval of tie ins. 13. Pickup and perforate intervals per Table 1: C-10B Proposed Ad-Perf Gun Runs. POOH. a. Note any tubing pressure change in WSR. 14. POOH. Stopping at surface to reconfirm well dead and hole full. 15. Review wellcontrol steps with crew prior to breaking lubricator connection and commencing breakdown of TCP gun string. 16. RDMO CTU. 17. RTP or FP well. Attachments: 1. As-built Schematic 2. Proposed Schematic 3. Coil Tubing BOPE Schematic 4. Equipment Layout Diagram 5. Standing Orders for Open Hole Well Control during Perf Gun Deployment 6. Tie In Log/Perf Sheet See not above (in red) regarding kill methods if pressure observed on surface after perforating. Standing orders flow chart included with this sundry request. Plug and Add Perf C-10B PTD:211-092 Wellbore Schematic Plug and Add Perf C-10B PTD:211-092 Proposed Schematic Plug and Add Perf C-10B PTD:211-092 Coiled Tubing BOPs Plug and Add Perf C-10B PTD:211-092 Equipment Layout Diagram Plug and Add Perf C-10B PTD:211-092 Standing Orders for Open Hole Well Control during Perf Gun Deployment Plug and Add Perf C-10B PTD:211-092 C-10B Tie-In Log Plug and Add Perf C-10B PTD:211-092 C-10B Tie-In Log Plug and Add Perf C-10B PTD:211-092 Hilcorp North Slope, LLCHilcorp North Slope, LLCChanges to Approved Rig Work Over Sundry ProcedureDate: November 13, 2020Subject: Changes to Approved Sundry Procedure for Well C-10BSundry #:Any modifications to an approved sundry will be documented and approved below. Changes to an approved sundry will be communicated to theAOGCC by the rig workover (RWO) “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 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMI N REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate Q Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 211-092 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-20371-02-00 7. Property Designation(Lease Number): ADL 0028310 8. Well Name and Number: PBU C-10B 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: F,. Total Depth: measured 13970 r_ P feet Plugs measured 12600/12950 feet true vertical 9015 feet Junk measured feet AUG 10 2016 U 1 Effective Depth: measured 12600 feet Packer measured 10178 feet true vertical 9023 feet Packer true vertical 8189.45 feet ACI GL�L�f Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"x 30" 34-114 34-114 Surface 2633 13-3/8"72#L-80 33-2666 33-2666 4930 2670 Intermediate 8478 9-5/8"47#L-80 29-8507 29-6744 6870 4760 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: See Attachment feet True vertical depth: See Attachment feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#L-80 27-10233 27-8243 Packers and SSSV(type,measured and See Attachment . ••'See`Attaissrmepo,,,, ..$eeattachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: Ag SCANNED SAN 3 i nil, 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 375 4160 46 1300 212 Subsequent to operation: 217 1393 27 1900 220 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory ❑ Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR 0 WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature 6::: .__. -. Phone +1 907 564 4424 Date 8/10/16 Form 10-404 Revised 5/2015 /// aV/ / 1 C' R B DMS 01 AVG G I k zcl6 Submit Original Only • • a) Q DQ O O M O)O O o 0 0 n O O M O) O co N LC) a co coao ao O N LO N- O U co o 0 0 o O o 0 0 i CO N- Nr M (O Ll7 O OM C) CO N V m 't to ti co O co O CO co �. (O V CO O N— co I� LU Lf) co V O N O N '1- CD N- V O CO CO 00 CO O O N CO CO 6) CO CO CO 00 C3) O) CO 0 I 1 1 1 1 1 1 1 1 1 1 1 H N CO O •- CO • CO (3) CO O O N CO N N- M CO N O N CO CO CO CO CO O N CO CO CO CO CO CO 00 6) C • (.flO O CO CO (A 'Cr CO CO co Lo V CO CO CO CO 00 01 (A N N co O 0 0 0 0 r- CO O t 0 p < 0 co LC) LU LC) — LC) N- CO r • CO C3) N N N N M 0) N- M NN CO CO 00 CO CO CA N C0 co 000000 M� W U OO 0 0 0 0 0 0 co00 C) 00 CO CO CO CO CO - J J J m J J J co a) OM (Ni *k J 0 in *k *k N co co .N N x N V N• N• N to _ - M L (A C3) O O 00 ` N _ Cll - _CO O U N CO _ N ,C N N 00 N i CO Oco M 'V 4 CV N M �j N M M 00 N (o CO N C9 O CO N- ti CO ct M V N 00 Co •;!- O O O O LC) 0 0 N CO N r- N w CC ~ c w " U w U CI u C Ct CC CC Lt Ct CC Z Z w w w w w w w w w m OJIZZZZZZZZD U U) Z J J J J J J J J I- s • a) a3 CO• CO CO 0) CA N- LC) CA co r LC) N- N- CO N c) CO r r CO V N CO N CO CO N O r M M N N V . N- M Q_ CN N CN r N (N N 0 CO IC) cr r O) O r 00 c6 (6 N N CV N N CN (N CN N r r r CV r N r r r p 0 0 0 0 0 0 0 0 0 0 0 m 0 0 0 m 0 0 0 p CA CA CA 6) O) CA O) CA O) CA O O O) CA CA O CA F a O t▪ CO CO V N CO N M M N O r M r C') N- N ' m 0 N N N N r N N r 0 CO LC) r m 0 OCA Cn N- 0 N N N N N N N N N r r r N r N N . r r w cl0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > ommmmmmmmmmmmmmmma) (3) m 0 w 0 p p wU Z w O a w p a, g a Y 00 m 0 0 W Y Y H 2 = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O — N --1 U U w W LLl CA r N N- O M LC) r N- O C") r LC) O N 'Cr —I -1 JCLM O N N 'Cr N Nr N N N N N N N N M co M M co) M M _0 0_ _0 J W W C7 -� C7 r r r r r r r r r r = = r = = = = = r Z Z Z O p p J 0 = 0 p a H a I z 2 0 0 0 w z ~O z U m 2 2 2 0 ) c) cin cin n a Q a U - Z 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 • _ p_ CO M r N N- O M Ln N- O CA CO M CO N O O /� O N N N N N N N N N N N N M M M cO M cM M I.L r r . . . . . r r r r r r r r r r r r L m O 2 �_ cn Y = U 0 u)O ) (/) can cJn W a O U c o LL LL LL LL LL LL LL w w w w w U w w w w m w Ilm a m a a m a a m a a m m a a a a m a a < < < < < ¢ Qmmmmmmmmmmmm Q 0 t a) a H .. 0 CO CO CO CO CO CO O Cfl CO CO CO CO CO CO CO CO CO CO CO W 0 0 c 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - Z O N N N N N N N N N N N N N N N N N N N Z L- 1 1 < 11 w LC) V O w N N LL \ \ \ \ \ r CO CO C\O CO CO p a O O U L O IW fY a 0 m O O Y D Y W -13 .7 O W W Q m a now LL LL ;n a) E Z• m m m m m m m m m m m m m m m m m m m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I = = = = i r r ; r i r r ; CO d O0a 0 J wO N0 d U U C) U U U U U U U U U U U W U U U U < < m m LL LL (n (n a 2 • • Packers and SSV's Attachment PBU C-10B SW Name Type MD TVD Depscription C-10B PACKER 8339.32 6648.69 7" Baker ZXP Top Packer C-10B TBG PACKER 10177.79 8189.45 4-1/2" Baker S-3 Perm Packer C-10B PACKER 10237.54 8246.83 5" Baker ZXP Top Packer C-10B PACKER 10825.22 8805.75 3-1/2" Baker 45 KB Packer • • / $5 -c \ r0 _ / / \ ° m 2 / o CO \ _ = a = o 2 I / 2 / / _ / 6 » \ / b R © CO 2 _ oTO § / ^ / fI 0 a O I c %I § $2EE 0) / 0— # CD 0) _ _ _ CO® \ _c / / \ / • 0_O a /_ - t $ \\ \ $ � • a) ƒ 2 D C 2 Q $ •A 0 % 2co ® _ m C Er) 71- \ / 2 D 0 ƒ ƒ 2 ¢ o » _ ± �E - _ O 1 03 \ E . . \ „ 0 (U / x8 ( \ I f \k ± � @ _ ® o \ / 0- / I 0 2 0 2 _0co co co ƒ/ \ \ E � -2 co oE5 = .E 2 7 % 0 E k % / / .k 2 E � � \ / \ k \ / 2 $C / - / o �O. \ o = - 0 & 0) j c& 6 t CO C / ƒ ° = C o * / = / o 0 co 2 b 4 o * e 13 ± « x o OI a) = z 0 m 7 b e ) O G ® b g 2 / 0 2 w i / O 7 5 ® R >I 1 Ce a 7 e ƒ ƒ f E 0 f \ O - d $ / 0_ D kIg /A s \ 17 / G 1 CI b1 03 0 / $ - c b \ c / c 7 / : — « RA = = # OF- N _, -;74-- * oc � $ 0 c % & = U = F \ o ' I = k \ 5 : « 3 2 2 $ \ / § G p W ,k 0 :.=.' 0/ f k e w < _ E = o .g w < I E g n _ _ , ± 0I -i c w a , § o e ? ® a E 2 = 2 § f c § E U / kso =N0wa = co = co 0I -IG� URo § \ � 2GUaeR30 _ ° = o O 3 ii = c o = 0 m c = _ L' I _0 0 D w D O / I o = ® ? I o ® o / ° 0 0 7 / R o - u .»@ Q R o o m O 0 f * a ) O * y 6 I O 2 O I o : O m O 4 10- at O E I ; n 2 < e e e / \ d \ / \ ® \ n_ # r c & n 0 \ \ \ < TREE= CNV • S - WELLFEAD= FMC NOTESWELL ANGi : LE>70° 11153' *** ACTUATOR= BAKER C 4 4-1/2"CHROME TBG` ORIG WELL&C-10A NOT K .ELEV= 61.97' SHOWN BELOW WS(8506'*** BF.ELEV= 34.97 / I I KOP= 3100 2190" -4-1l2"HES X NP,D=3.813" Max Angle= 95°@ 12677' "NSULTD H 110' 2585' -I9-518"Dv PKR Datum M)= 10891 GOND GAS LFT MANDRELS Datum TVD= 8800'SS ST MD TVD DEV TYPE VLV LATCH PORT DATE 13-3/8"CSG,72#,L-80 BUTT, H I 2666' —41 1—..d 4 3008 3008 6 MMG DOME RK 16 10/06/11 , 3 5533 5013 53 MM3 SO RK 20 10/06/11 2 7876 6393 55 MAG DMY RK 0 10/28/05 D=12.347" 1 9792 7819 16 KGB2 DMY BK 0 10/28/05 Minimum ID =2.360" 10843' 8328' -19-5/8"x 7"BKR C-2 ZXP LTP w/TEBACK SLV,D=6.30" 3" BAKER SEAL ASSEMBLY 1 8345' H9-5/8"X 7"BKR LNR HGR,D=6.23" 9-5/8"WHPSTOCK(10/14/05) H 8505' 9-5/8"MLLOUi WINDOW(C-10A)8505'-8522' I 9-5/8"CSG,47#,L-80 BUTT, -I 8506' ' r- 1015$' H4--1/2'NES X NP,D=3.813' D=8.681" S X 10178' --I 7'X 4-1/2"BKR S-3 PKR,D=3.875" I r- 10201' -I4-1/2"HES X NP,D=3.813" ' p- 10220' -14-1/2"HES XN NP,MLLED TO D=3.813"(08/11/11) 10225' -1 -X 5"BKR ZXP LTP w MEBACK SLV,D=4.40' 4-1/2"TBG, 12.6#,13CR-80 VAM TOP, - 10233' 1/ 10233' -{4-1/2"WLEG,D=3.958" .0152 bpf,D=3.95T ` 10243' H7"X 5"BKR FRAC LNR HGR D=4.410' 10250' -15"X 4-1/2"XO,0=3.950" 7'LNR,26#,L-80 BTC-M, H 10400' , , .0383 bpc,D=6.276" 10825' H4-1/2"BKR KB LTP,D=2.450" 3-1/2"LNR,9.3#,L-80 STL, H 10897' .0087 bpf,D=2.992" 10843' -13"BKR SEAL ASSY,D=2.360' 4-1/2"WhIPSTOCK(09/12111) ---I 11310' 10845' I-13.70"DEPLOY MELT SLV,D=3.000" 4-1/2"LNR,11.6#,L-80 BT, -1 -11311' .0155 bpf,ID=4.00' 10897' H 3-1/2"x 3-3/16"XO,D=2.786" 3-3/16"LNR,6.2#,L-80 TCN, H 11943' .0076 bpf,D=2.80" 4-1/2"FALLOUT WINDOW(C-10B)11311'-11320' PERFORATION SUMMARY 11943' H3-3/16"X 2-7/8'XO,D=2.387" REF LOG: MMIDIGR on 09124/11 I ANGLE AT TOP PERE:91*@ 12410' I 12600' _ j 2-7/8"BOT CUP(05106116) Note:Refer to Production DB for historical perf data _ SIZE ! SPF I INTERVAL OpnJSgz I ATE i 12950' H2-7/8"WFD CBP(12/15!14) -See page 2 for Perf Sunmary- I -I I I ' FETD H 13955' 2-7/8"LNR,6.16#,L-80 SR,.0058 bpf,0=2.441" - 13965' ... DATE REV BY COMA/134TS DATE FEV BY COMIVENTS PRUDHOE BAY LMT 08/10/79 N18E ORIGINAL COMPLETION 11/01/11 DD/JMD DRLG CRAFT CORRECTIONS WELL: C-10B 03/24/90 NIES RWO 12/22/14 RMHIJM:SET C B/ADPERFS(12/15-17-14) PERMIT ND:"110920 10129/05 N2ES SIDETRACK(C-10A) 04/11/16 JWJMD MINOR EDIT AR No: 50-029-20371-02 10/01/11 N2E5 SIDETRACK(C-10B) 05/09/16 JDMYJMD SET CH3RADPERFS(05/06/16) SEC 19,T11N,R14E,886'FNL&1223'FEL 10/13/11 SG/JMD GLV C/O(10/06/11) 07/22/16 JLS/JMD ADPE FS(07/14-15!16) 10/31/11 SG/JMC GLV C/O(10/06/11) BP Exploration(Alaska) • C - 1 OB t . I � 3 ppt a 1 1 1/ \I T PERFORATION SUMMARY REF LOG: MNVD/GR on 09/24/11 4 ANGLE AT TOP PERF:90"©12360' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz SHOT SQZ 2" 6 12360-12390 0 07/15/16 2" 6 12390-12420 0 07/14/16 2" 6 12410-12440 0 05/06/16 2" 6 12440-12470 0 07/14/16 2" 6 12470-12500 0 05106/16 2" 6 12500-12530 0 07/14/16 2" 6 12630-12650 C 12/17/14 2" 6 12650-12680 C 12/17/14 2" 6 12680-12710 C 12/17/14 2" 6 12710-12740 C 12/16/14 2" 6 12740-12770 C 12/16/14 2" 6 12770-12800 C 12/16/14 2" 6 13000-13440 C 09127/11 2" 6 13490-13530 C 09/27/11 2" 6 13580-13610 C 09/27/11 Z' 6 13630-13650 C 09/27/11 2" 6 13760-13790 C 09/27/11 2" 6 13820-13870 C 09/27/11 2" 6 13900-13940 C 09/27/11 DATE I REV BY (bMVIE rs DATE REV BY COMMENTS PRUDHOE BAY UNIT 08/10/79 N18E ORIGINAL COMPLET1ON 11/01/11 DD/JM) DRLG DRAFT CORRECTIONS WELL: C-10B 03/24/90 N1ES RWO 12/22/14 RM-VJMJ SET CFB/ADPB2FS(12/15-17-14) PEWIT No.'2110920 10/29/05 N2E5 SIDETRACK(C-10A) 04/11/16 .81/JM3 MICR EDIT API No: 50-029-20371-02 10/01/11 N2ES SIDETRACK(C-10B) 05/09/16 JDMJM3 SET C IP/ADF132FS(05/06/16) SEC 19,T1IN,R14E,886'FI+t.&1223'FEL 10/13/11 SG/JM3 GLV C/O(10/06/11) 07/22/16 JLS/JM3 ADF4RFS(07/14-15/16) 10/31/11 SG/JIVC GLV GO(10/06111) BP Exploration(Alaska) STATE OF ALASKA ' LASKA OIL AND GAS CONSERVATION COMMIS. REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations Q Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate Q Other Stimulate 0 Alter Casing 0 Change Approved Program ❑ Plug for Redrill 0 Perforate New Pool ❑ Repair Well ❑ Re-enter Susp Well 0 Other: Cf C 1.2P 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 211-092 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory 0 AK 99519-6612 Stratigraphic ❑ Service ❑ 6. API Number: 50-029-20371-02-00 7. Property Designation(Lease Number): ADL 0028310 8. Well Name and Number: PBU C-10B 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 13970 feet Plugs measured 12600/12950 feet i e. .,,,,s 1 E true vertical 9015 feet Junkfeet measured 0 7 Effective Depth: measured 12600 feet Packer measured 10178 feet JUN 2016 true vertical 9023 feet Packer true vertical 8189.45 feet AOGCC Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"x 30" 34-114 34-114 Surface 2633 13-3/8"72#L-80 33-2666 33-2666 4930 2670 Intermediate 8478 9-5/8"47#L-80 29-8507 29-6744 6870 4760 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: See Attachment feet True vertical depth: See Attachment feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#L-80 27-10233 27-8243 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Q�E° FEB 2017 SCO Treatment descriptions including volumes used and final pressure: � 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 468 39189 47 460 1150 Subsequent to operation: 202 1269 25 1660 211 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory ❑ Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL ❑ Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature /Maw, Phone +1 907 564 4424 Date 6/7/16 Form 10-404 Revised 5/2015 y 1 L" -7-/8/1(,. `V' " 10 8 2016 -y /y/� RBDMS L J V t Submit Original Only • • acpoaaaa co O co CA as 6- N- I.C) co co O O O O M O M O 0 N lt') 0 HO O O O i co � M O 0 0 O co c CnO (NI V co O N- O O M O r � r r ▪ CO co O co r- LC) Ln CO V' O i- N CO N CO C` V' O CO CO O O O N N CO CO a) 00 O 00 O) CA 00 NOCO .- MI- O M CA TiP M O s- N CO N f`• CO M N CO N CO O CO CO O N CO CO CO CO CO CO 0) C CO Is O c- r LC) CO LC) CO 'T Co O O A- CO CD Cr CO CO NcoO - 000 — cc)0) O M I . I . i Am, 0 co LO LC) L(') I- M Q M to N N N M Cr C7) V M M N M N CO CO CO CO 0) N Co 0 0 0 0 0 0 CO a O 0 0 0 0 0 0 0 o0 CO C? O 00 O ? CO 0i) 0 _ J J CO J J J J J J J M N �# J N N CO CCOO .N N X N-- % N N ' N N BOO N _ O (OO CO - N M - fV N 0\0 N � o i r N c, r M (“1 i) CV 4 0)OM � r- cco d MONCO O = co co Tr 0 0 0 ,- LC) O O N J N co N r- N O w c =0 U ww 0 o u2CL CLCLCLCCQ c Z Z CC w w w w w w w w QDF- ZZZZZZZD u) Z J J J J J J J I- • • a, m 0) Lo co toti (O N M CO 00 M N O v- (0 0 M N N Nt I- co v- s O CO (C) Ni "1 N- O) 0 � 00 CO CO a1 N N N v- v- c) (y v- CV cp - - 0 0 0 0 0 0 0O O O O O O 0 0) 0) 0) 0) 0) 0) O 0) 0) 0) co 0) 0) 0) 0. O F' (O N co c0 LO N- (0 N- 00 M N N M N 0 00 — M N- N 0) aNN 000 a) OOO 0 d N N N (V • N (V (V v ' v- W 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > 0 a) 0) 0) 0) 0) 0) 0) 0) a) 0) 0) 0) 0 0) 0 W 0 w 00 Z UJ w OW H H J a W 5 5 Y 0 0 > m 0 0 w Y Y g 00 0 00000000000 www U U W 1- w .c W ++ Q Nr O L() Nr N- O M U[) 0) N- J J J a () Z a' C ) NN (OV (V NNNCCS) cc) M M () M M 0 0 0 J J JCD J D Q Q Q = a W a 0 0 0 w w Z ZQZ W W W a {jV m 2 2 2 0 cn co cou (a OO. Q O L O O O O 0 O O O O O O O O O � NM � O M aa, v ' (o (o N- N- ti 0 v 0 ( 0MO N- CO rn 4.41a3 p N N N N N N N M M M M M M M ca C L m O ccu)-- mo o a J a 2220 (n (n (n (n (n O a a, 0 U O LL LL (n CO U) U) V) Cl) U) Cl) U) Cl) U) U) aaaaaaaO OO aaa 0 030303030303030303030303 a 0 t a, a CO CD CO CO (0 (O (OCO (0 (O (DCOCOCD 0 0 c 0 0 0 0 0 0 0 0 0 0 0 0 0 00 CV CV CV CV CV CV CV CV CV CV CV Cg CV CV W LL Z o CO 00000CO (O (OCID COCOCD (0 (D (0 0 a ° U oW w a W O UinLOLO (nLOLOMLOLc) u) ([) LOtC) Q p J I- J JpJ W ce a J J a) E �o Z (0 (0 (0 (0 (0 (0 (0 (0 (0 (0 m 00000000000000 (/) a N 0 0 0 LLU d UUUUUUUUUUUUUU 00- 0- 0- 0 -1 LL lL (n (n a a! • • Packers and SSV's Attachment PBU C-10B SW Name Type MD TVD Depscription C-10B PACKER 8339.32 6648.69 7" Baker ZXP Top Packer C-10B TBG PACKER 10177.79 8189.45 4-1/2" Baker S-3 Perm Packer C-10B PACKER 10237.54 8246.83 5" Baker ZXP Top Packer C-10B PACKER 10825.22 8805.75 3-1/2" Baker 45 KB Packer 0 0 • o i 2 / 2 0 � a ) ' / C oI • ° LE 0 0 0 Cl) E b » c c _12 �2 - 64- 220@ 0_oo ma2 E f \ © q S2 £ = ' 2 = u) cR ° l $ \2 ? § k _7 § £ 0 ! 0 o ; CO L CD 6 t 0 G 6 ¢ + \ f o c 60 Q a. = z 2 5 - t a 2 g o 10 Q r CA f2k � E Ekbk a^ o IX � 0 � 2 \ / � CO ° / E u. 0--0 Q 0 c o % 2 2 g c co ® N k c co CD / CL , o o • o . . = m co . o ¥ o m 22 £ � o fa ._0 \ \ 2 ® o f Q o o = % o o 5 6 / /cpm � OI � Ik � al � | -0 I - = n & t = 2 t - _ oD @ � = Q . - ca o - •2 2 % § 7 c / 2 && k 2 = © ° � � * a) < § a)f # 0. i d •- g cr: f cn = 2 Q >.Q2 _c •G „ g ® = cWQ110a & U \ q / / £ E co 0 / / £ CL -_,S / & m I m m U. I E a ± a U k & CI - O $ .§ N.- O c7- 0 -§ 0 E O c - O ® 2 5 m • -1 a 0 J ° ° m _1 o e o / m c ; = UOko - N2 / 0 � ta2 / O &k k to 9 \ i - = m • • Ce1 = b - t £ N-• 2 o 0 0 ” 2 » $ = 0 2 6 e f ■ 0- _/ E \ ¥ § E w \ \ k k a) § b � Qo � g o � Qo -§ O 0c ® 0 e a \/ al -c * 0 co6 2 G = 4* 0 » _ U ■ - 027\ h / / / % N0N : O q / t 0 - < co R - u : O -3 2 .- .- i 0 -) O ; 5 / I L Q 0 c c o \ \ 222 / a o w = e a a a 0 < TEE= CM/ • WELLHEAD= RAC SA.NOTES: WELL ANGLE>70°@ 11153' *** ALTUATOR= BAKER C Cj 1.1 O B 4-1/2"CHROME TBG***ORIG WELL&C-10A NOT KB.ELEV= 61.97 SHOWN BELOW WS @ 8506'*** BF.11E1/= 34.97 ' , KOP= 3100 2190' -4-1l2"FSS X NP,D=3.813" Max Angle= 95'©12677' 30"NSULTD - 110' —I 2585' H9-518"DV PKR Datum MD= 10891 COND GAS LET MANDRas Datum TVD= 8800'SS ST M) ND DEV TYPE VLV LATCH FORT DATE 4 3008 3008 6 MNG DOM_ RK 16 10/06/11 13-3/8"CSG,72#,L-80 BUTT, - 2666' , , 3 5533 5013 53 MNG SO RK 20 10/06/11 2 7876 6393 55 MNG DMY RK 0 10/28/05 D=12.347" 1 9792 7819 16 KGB2 DO' BK 0 10/28/05 Minimum ID =2.360" a@ 10843! 8328' -9-5/8"X 7"BKR G2 ZXP LTPw/T�ACK SLV,D=6.30" 3" BAKER SEAL ASSEMBLY4 8345' H9-5/8"x 7"BKR LNR HGR,D=6.23" 9-5/8"MLLOUT WINDOW(C-10A)8505'-8522' 9-5/8"WHIPSTOCK(10/14/05) -{ 8506' 9-5/8"CSG,47#,L-80 BUTT, H 8506' ' rH 10158' -1--4-1/2"FDS X NP,D=3.813" ID=8.681" S 10178' -17"X 4-112"BKR S-3 PKR,D=3.875" ' 1---1 10201' -14-1/2"FES X NP,D=3.813" ' r—{ 10220' H4-1/2"FES XN MP,MILLED TO 0=3.813"(08/11/11) 10225' -17"X 5"BKR ZXP LTP w/TEBACK SLV,ID=4.40" 4-1/2"TBG,12.6#,13CR 80 VAM TOP, H 10233' :( 1 0152 bpf,D=3.958" 10233' -14-1/2"VVLEG,D=3.958" 10243' -17"X 5"BKR HMC LNR HGR,ID=4.410" 10250' H5"X 4-1/2"XO,D=3.950" 7"LNR,26#,L-80 BTC-M, -1 10400' I , .0383 bpc,D=6.276" 10825' -14-1/2"BKR KB LTP,D=2.450" 3-1/2"LNR,9.3#,L-80 STL, -1 10897' .0087 bpf,D=2.992" 10843' _H3"BKR SEAL ASSY,13=2.360" 4-1/2"WHIPSTOCK(09/12/11) -1 11310' n 10845' H 3.70"DEPLOY MBVT SLV,D=3.000" 4-1/2"LNR,11.6#,L-80 UT, -I -11311' ,0155 bpf,D=4.00" 10897' -13-112"X 3-3/16"XO,D=2.786" 3-3/16"LNR,6.2#,L-80 TO, H 11943' .0076 bpf,D=2.80° 4-1/2'MLLOUT WINDOW(C-10B)11311'-11320' PERFORATION SUMMARY 11943' H3-3/16"X 2-7/8"XO,D=2.387" FEF LOG: MWD/GR on 09/24/11 ' ANGLE AT TOP FERN:91"@ 12410' ' 12600' -�2-7/8"BOT CUP(05/06/16) Note:Refer to Roduction DB for historical perf data _ SIZE i SPF I INTERVAL 1 Opn/Sqz l DATE I See page 2 for Fell Summary- I 12950' --12-718"WFD CUP(12/15/14) I I I I I I I MID -1 13955' 2-7/8"LNR,6.16#,L-80 STL,.0058 bpf,D=2.441" - 13965' •� DATE REV BY COMMENTS DATE REV BY COMMENT'S PRUDHOE BAY UNIT 08/10/79 N18E ORIGINAL COMPLETION 11/01/11 OD'JM3 DRLG DRAFT CORRECTIONS WB..L: 0-10B 03/24/90 N1ES RINO 12/22/14 RM4(JM]SETCPB/ADPERFS(12/15-17-14) FE RNIT No:"2110920 10/29/05 N2ES SIDETRACK(C-10A) 04/11/16 JWJM? MINOR MT API Nb: 50-029-20371-02 10/01/11 142E5 SIDETRACK(C-108) 05/09/16 JDMJM3 SET CIBP/ADPERFS(05/06/16) SEC 19,T11N,R14E,886'ENL&1223'FEL 10/13/11 SG/JM? GLVC/O(1W06/11) 10/31/11 SG/JMC GLV C/O(10/06/11) BP Exploration(Alaska) •C-IOB • 1 1 _.[A I I S � 1 1 1 1 PERFORATION SUMAARY RE LOG: MIND/GR on 09/24/11 4 ANGLE AT TOP PERF-91°@ 12410' Note:Refer to Rod uction DB for historical perf data SIZE SPF INTERVAL OpnlSgz SHOT SQZ 2" 6 12410-12440 0 05/06/16 ►�� 2" 6 12470-12500 0 05/06/16 2" 6 12630-12650 C 12/17/14 2" 6 12650-12680 C 12117/14 2" 6 12680-12710 C 12/17/14 2" 6 12710-12740 C 12/16/14 2" 6 12740-12770 C 12/16/14 2" 6 12770-12800 C 12/16/14 2" 6 13000-13440 C 09/27/11 2" 6 13490-13530 C 09/27/11 2" 6 13580-13610 C 09/27/11 2" 6 13630-13650 C 09/27/11 2" 6 13760-13790 C 09/27/11 2" 6 13820-13870 C 09/27/11 2" 6 13900-13940 C 09/27/11 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY MT 08/10/79 N18E ORIGINAL COMPLETION 11/01/11 DO/JMJ DRLG DRAFT( CTIONS WELL: C-10B 03/24/90 N1ES RtVO 12/22/14 RMWJM iSET CPB/ADPERFS(12/15-17-14) FERMI-No:"2110920 10/29/05 N2ES SIDETRACK(C-10A) 04/11/16 JWJMD AMOR EDIT API No: 50-029-20371-02 10/01/11 N2ES SIDETRACK(C-10B) 05/09/16 JDMJMD SET CBP/ADPERFS(05/06/16) SEC 19,T11N,R14E,886'FNL&1223'Fa 10/13/11 SG/JMD GLV CIO(10/06/11) 10/31/11 SG/JMC GLV C/O(10/06/11) BP Exploration(Alaska) STATE OF ALASKA A KA OIL AND GAS CONSERVATION COMM. ,ON • REPORT OF SUNDRY WELL OPERATIONS 1 Operations Abandon❑ Repair Well ❑ Plug Perforations 0 Perforate 0 Other Er Se t C//3P Performed Alter Casing❑ Pull Tubing ❑ Stimulate-Frac ❑ Waived] Time Extension❑ Change Approved Program❑ Operat Shutdown❑ Stimulate-Other ❑ Re-enter Suspended W❑ 2 Operator 4 Well Class Before Work 5 Permit to Drill Number BP Exploration(Alaska),Inc Name Development 2 Exploratory 211-092-0 3 Address P O Box 196612 Stratigraphic ❑ Service❑ 6.API Number Anchorage,AK 99519-6612 50-029-20371-02-00 7 Property Designation(Lease Number)- 8 Well Name and Number ADL0028310 PBU C-10B ' 9 Logs(List logs and submit electronic and pnnted data per 20AAC25 071) 10 Field/Pool(s). PRUDHOE BAY,PRUDHOE OIL 11 Present Well Condition Summary Total Depth measured 13970 feet Plugs measured 12950 feet true vertical 9014 5 feet Junk measured None feet Effective Depth measured 12950 feet Packer measured See Attachment feet true vertical 9020 42 feet true vertical See Attachment feet Casing Length Size MD ND Burst Collapse Structural None None None None None None Conductor 80 20"x 30" 29.85-109 85 29 85-109 85 0 0 Surface 2634 95 13-3/8"72#L-80 29 35-2664 3 29 35-2664 24 4930 2670 Intermediate 8478 4 9-5/8"47#L-80 27 35-8505 75 27.35-6743 2 6870 4760 Production None None None None None None Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth See Attachment feet laSCHNNE� ' 1\ LU . True Vertical depth See Attachment feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#L-80 25 85-10233 75 25 85-8243.19 ' Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12 Stimulation or cement squeeze summary ,ter w E%,or C G D Intervals treated(measured) RE Treatment descriptions including volumes used and final pressure AN 1 2 2°15 13 Representative Daily Average Production or Injection Data OGGCj Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation 491 36410 50 100 1000 Subsequent to operation: 1264 25975 125 1300 1000 14.Attachments 15 Well Class after work Copies of Logs and Surveys Run Exploratory ❑ Development Li Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work Oil 0 Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAG ❑ GINJ❑ SUSP ❑ SPLUG ❑ 17 I hereby certify that the foregoing is true and correct to the best of my knowledge Sundry Number or N/A if C 0 Exempt. N/A Contact Garry Catron Email Garry.CatronaBP.Com Printed Name Garry Catron Title PDC PE Signature AQ„._4 C,,,C, Phone 564-4424 Date 1/12/2015 1 lin_ 1/2c-/i 5--- RBDMS 3\-k JAN 1 3 2015 Form 10-404 Revised 10/2012 Submit Original Only Packers and SSV's Attachment ADL0028310 SW Name Type MD TVD Depscription C-10B PACKER 8339.99 6649.07 7" Baker ZXP Top Packer C-10B PACKER 10178.46 8190.09 4-1/2" Baker S-3 Perm Packer C-10B PACKER 10237.54 8246.83 5" Baker ZXP Top Packer C-10B PACKER 10825.22 8805.75 3-1/2" Baker 45 KB Packer m w o 0 0 0 0. O O O M C) M 0) 0 0 U c•- tn. 0 0 0 0 0 0 Soo CO CO CO CO N V 0 M O) V m co ti CO cn V CO N N- LC) A- 'Cr r CO N V CA CO LO CO OO 0) V N- NA- C4) • C CO CA A- N CO LC) cr V CO 0 O CO A- N CO N O - Cfl V O CO CO 00 O O (O N CO 0) CO CO CO 0) 0) N CO H V CO LO A- V f- CO CO LO co 00 N- CO CO CA N LU L() CO CO N t!) N M t!) M CO crir M o N CO N CA CO N N CO N CO CO CO 00 O N N CO CO CO CO CO CO O) AFI N � I� M � O DO M N O) CO CO 00 CO co00 O) C) N A- O O O O CO N O V a 0 i I I I I i I QM co CO (0 N LO N- M O r N N N M V O) CA CO CD CO co N co O O O O O CO CO 00 CO 03 N N C• � J 4:( S o 0 o S 0 0 (D Co CO Co Co COcoCo aD J J J G1 OM I# —) CO CCOO N (OO N CO N X *k ( V N N CO CO O N N CO CO a0 N LO f\ N 0\0 M N M .4. M CO N M A V t 0)O CO N- CO CO CO V N M 0 C CO X 0 0 N. LU 0 0 CO N C) CO N N N W H C H- 0 W w U U 0 ct t Z Z w w w w w w w w �p Q HZ ZZZZZZ DD U Z J J J J J J a> Ca f6 m CO r- LO I� CO N CO CO v- t N 0 — CO M N N . I— CO O CO LO 'Sr <- 0) O CO CO CO a7 N '- c- N N N p 00 0 0 0 0 0 0 0 0 0) O) 0) CA 0) 0) 0) O) O) Cr) > H a W Y a > Q 0 O CO CO LO N- CO N- CO CO N 'Cr 2 J ry W CO N O CC) M N- N 0) W J (n Z aocoLciv � rnoorn °° � Q w 0 =, w N N •- < N N N0U_ J o 0 0 0 0 0 0 0 0 0 0 0 0 O U Z O J LU 0) O O 0 0 O O p O C7) CA 0) O) H H < = w d W > > g g = z w Z o r H O O w a 0 a Q O W N C 2 0 0 0 cn cn a, lE m t O O O O O O O O O O O O LO V N- O V CO LO O) N- CI- CI- CO N- N- N- CO •Sr to CO CO N- CO CA ^C N N N (N CV CO CO CO CO CO CO CO cc W N 20 0) a) = Y I H H d J d 2 O cn cn cn cn cn R a Q N F • o C 0 0 0 0 0 0 0 0 0 0 0 0 J a M LU `- V N- O 0) CO CO CO N Oa p N N N N N CO CO CO CO'Tr LO CO CO 0) L a) O 2 t CD a .2 0 U c LL LL LL LL LL U) L7 U) L7 U) (n Cn is CL CL CL CL CL CL CL CL CL Cl CL CL Q Q Q Q Q 00 m 00 CO CO CO m a 0 t a, a w J WCL CO H LU0 V V V' V "Cr V V V V V Q p 0 0 0 0 0 0 0 0 0 0 0 0 L J J Z LL NN z LL d a. Q W I• - CO CO CO LO LO LO LO LO LO LC) O LU N N LL. a Cw7 Cw7 J LU Lu N N N N N N N N N N N N Q p p p J J D D a _J J_ O Q Q m m U U cn d 0_ cC a) E fa Z Cd m 0] 0:1 m m m m m C0m 00 0 0 0 0 0 0 0 0 CO 0 0 0 LL 0_ co O LL N LL. N U U U U U U U U U U U U Q Q m m IOL LL d 0 0_ 2 MIS _a x i0 a) - CI_ a) p co 3 C ( co U O N- O , 0 0 � O •,- o c0 - N- e- o o o0 'tU N NM 4_ � � 5 � CN- c � _ N (0 ca ° � a) a) (n � M ° +� O p e- N (n - 0 = '- - < (0 V CD E co C 0 c(e) = co (6 LLL N c i6 0 M jj Q- Q `N-' CO ai a00 -o -0 LL (� LLJ • 0 I a) c Q ,_ > c6 -00 + � C0_ m ( t6 '- 0 >, O2° 0 -0 I,-• a) 0 L a) ai ° U a) O E t a) LI II_ co O H E T F- N c 0 0_ 80 -c - ° UD n o t 0 o < C 0)-a -- a) J C o 0 o I 0 CD C • N i6 0- LL o U U) 1) 0_m 0 ,«- E a) a) *k o m 0 * 0 -° p0 cOQin E .S c• `t *k O a) O C`' O 0 CL co O o 4 u) a E 4 > J 0 �m ,- -0 4 �t N N O C c cVU O E CL Cl_ *k a) N 0- 0 r U) c a. CD - -o 2CX ° N U)) I CD " � � TO � oQa � � CryCL t (6 a � �_ � � L C O IN Q UN -0 ' � oo2� om b aa, CD a. 3co a E O . O O `n . U _ x c I c0 65 0 O • O C , M N a0 0) U J N 0 O Q CC '- n.V M Q J o CL O ( 0 0 co C Q O p O 1 O O �` 7 0 0 � O 0 W N , LL O _ C cc i0 v II N O -O N N 0) _O 2 .Q O ;u) .� - V) U) a m J Q v c CC v o o 4 a) " v -0 O J IQ CD a) OU a5Oc/) M c° t o E ° Ecom E c3� a � � T °' •E� � NN � ,- 0- ,- _c Q Q - - I I OL O m N L a) N ,- ,- 7 N E a) ` N ' Ju) 4- LLcnU � °' E o (O a) a) N- - cC COw 3 d CD LL a) (n *k i (6 a C a) CC (O c6 7 CC ~ 0 7 CC N Ce 0_Z 0 ai c (nz L N U) L. N (n (.,i N U) �° 0 O O C co O Q i� N C N t t � C Q (1) ICD— c LSP ° � � � � � Eaa � E t (fiCL n ELL J • 0 U a) CL c6 J ' O o O o) N • 5 O LLL_ >,u) D � O C0O7 2 8 C � *k *k C -0 LO c -0 *k * o n 1u) 0 •� 0 ...=. 2 -01"-- ,) ,_ o O0 c C ° N .3 4 CL ° a) C a) O 0 -0 UCC U p N ) CC ° -o C C C -O 7 _c c C a C z a) o O a) a_ J �n 4- (6 cn co 0 0 N a) c 0 0 a) C O c . a) C Q > W O > O `- o m '" '- N O 0 }C 0 a) a) '0 0 0- co .c o Q O Cl) J LL a s. oCLO o0 . 0 0W -100C 0dd co 0 _- • O 0 U OII O -o - DIEM 0 � > � � D 0 co 3 3 _aD E 3L � DI 0 co o 1 c mTo F- a) 0 0 .° I- II_ off o __ c° o ~ 04 F- CL U E (n UCL Oco ~ 2 � mtF UCC CC :UUcc - «UCL : v v v v 4 0 0 0 0 0 N N N N N U") co co c N N N N N TREE=, CNV I U.U-EAD= RACO_ St_ 1 NOTES: WELL ANGLE>70°@ 11153' *** (ACTUATOR= BAKER C 41/2"CHROME TBG***ORIG WELL&C-10A NOT KB.REV= 61.9T SHOWN BELOW WS @ 8506'*** BF.ELEV= 34.9T - KOP= 3100' I I 2190' -14-1/2"FES X NP,D=3.813" Max Angle= 5°@ 1267T 30"INSULATE) - 110' :=—H 2585' H9-5/8"DV PKR Datum MD= 10891 CONDUCTOR GAS LFT AMMJRELS Datum TVD= 8800'SS ST MD TVD DEV TYPE VLV LATCH PORT DATE I 'f 4 3008 3008 6 MMG DOME RK 16 10/06/11 ILII 3 5533 5013 53 MG SO RK 20 10/06/11 13-3/8"CSG,72#,L-80 BUTT, - 2666' {-- , 2 7876 6393 55 WS OMY RK 0 10/28/05 D=12.347" 1 9792 7819 16 KGB2 DM' BK 0 10/28/05 Minimum ID =2.360" @ 10843' J, 8328' -19-5/8-X 7"BKR C-2 ZXP LIP w/TIEBACK SLV,D=6.30" 3" BAKER SEAL ASSEMBLY `[ 8345' H9-5/8"X 7"BKR LNR I-iGR,D=6.23" 9-5/8'MLLOUT WINDOW(C-10A)8505'-8522' 9-5/8"W-IPSTOCK(10/14/05) -{ 8506' 9-5/8"CSG,47#,L-80 BUTT, -{ 8506' I I 10158' 4-1/2"HES X NP,D=3.813" D=8.681' 10178' -17"X 4-1/2'BKR S-3 PKR,D=3.875" ' 1---1 10201' H4-1/2"HES X NP,D=3.813" t 10220' 1-14-1/2'HES XN NIP MLLED TO D=3.813"(08/11/11) 10225' 7"X 5"BKR ZXP LTP w/TEBACK SLV,D=4.40" 4-1/2"TBG,12.6#,13CR 80 VAM TOP, H 10233' . 1/ 0152 bpf,D=3.958" 10233' --14-1/2"WLEG,D=3.958' 10243' {--{7"X 5"BKR HMC Lts#2 HGR,D=4.410" 7"LNR,26#,L-80 BTC-M, --j 10400' 10250' -{5"X 4-1/2'XO,D=3.950' .0383 bpc,D=6.276' 10825' 1-14-1/2"BKR KB LTP,D=2.450" 3-1/2"LNR 9.3#,L-80 STL, -1 10897' .0087 bpf,D=2.99T 10843' -13"BKR SEAL ASSY,D=2.360" 4-1/2"WHPSTOCK(09/12/11) H 11310' 10845' H3.70"DEPLOYMENT SLV,D=3.000" 4-1/2"LNR,11.6#,L-80 BT, -1 -11311' .0155 bpf,D=4.00" 10897' H3-1/2"X 3-3/16"XO,D=2.786" 3-3/16"LNR,6.2#,L-80 TCN, H 11943' .0076 bpf,D=2.80" 4-1/2'MLLOUT WINDOW(C-10B)11311'-11320' PERFORATION SUMMARY 11943' -{3-3/16'X 2-7/8"XO,D=2.387' REF LOG: MMYGR on 09/24/11 ANGLE AT TOP PERF:93°@ 12630' Nbte:Refer to Roduction DB for historical perf data SEE SPF I MBRVAL Opn/Sqz DATE 12950' --I2-7/8"WFDCEP(12/15/14) -See page 2 for Plerf Sunvmry I I - I PBTD - 13955' 2-7/8'LNR,6.16#,L-80 STL,.0058 bpf,I)=2.441" -I 13965' DATE REV BY C Ot UNTS DATE REV BY COMvEJTS PRUDHOE BAY UNIT 08/10/79 N18E ORIGINAL COMPLETION 11/01/11 DD/IAD DRLG DRAFT CORRECTIONS WELL: C-10B 03/24/90 N1ES RWO 12/22/14 RMWJFvI SET C]PB/ADPBRFS(12/15-17-14) PERMT No: 2110920 10/29/05 N2P5 SIDETRACK(C-10A) AR No: 50-029-20371-02 10/01/11 ICES SIDETRACK(C-10B) SEC 19,T11N,R14E,886'FM.&1223'FEL 10/13/11 SG/JMD GLV C/O(10/06/11) 10/31/11 SG/AC GLV C/O(10/06/11) BP Exploration(Alaska) C -1 QB NM= MEM o -t r � g I/ Z PERFORATION SUMMARY REF LOG: MVVLYGR on 09/24/11 4 , ANGLE AT TOP PERF:93"@ 12630' Note:Refer to Production DB for historical perf data SIZE SPF NTHRVAL Opn/Sqz SHOT SOZ 2' 6 12630-12650 0 12/17/14 P 4 0 2' 6 12650-12680 0 12/17/14 2" 6 12680-12710 0 12/17/14 2" 6 12710-12740 0 12/16/14 2" 6 12740-12770 0 12/16/14 2" 6 12770-12800 0 12/16/14 2" 6 13000-13440 C 09/27/11 2" 6 13490-13530 C 09/27/11 2" 6 13580-13610 C 09/27/11 2" 6 13630-13650 C 09/27/11 2" 6 13760-13790 C 09/27/11 2" 6 13820-13870 C 09/27/11 2' 6 13900-13940 C 09/27/11 DATE REV BY OOMVE TS DATE REV BY COP? ITS FRUDHOE BAY UNIT 08110/79 1418E ORIGINAL COM PLETION 11/01/11 DO/JAI) DRLG DRAFT CORRECTIONS WELL: C-10B 03/24/90 N1 ES RWO 12!22/14 RHtVJMC SET CFB/ADPERFS(12/15-17-14) PE RIJT No:x`2110920 10/29/05 N2ES SIDETRACK(C-10A) API No: 50-029-20371-02 10/01111 N2BS SIDETRACK(C-10B) SEC 19,T11N,R14E,886'FNL&1223'FEL 10/13/11 SG/JMD GLV C/O(10/06/11) 10/31/11 SG/JIVIC GLV C/O(10/06/11) BP Exploration(Alaska) 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. ail 1._ - 0_ _aWell History File Identifier Organizing(done) ❑ Two-sided ❑ Rescan Needed 7RE AN: OVERSIZED: NOTES: Color Items: ❑ Ma s: ,rayscale Items: Cogs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: BY: - Maria Date: 7/30/11L /s/ Ill 1° Project Proofing BY: A14120 Date: 7/30/1414. /s/ Scanning Preparation a. x 30 = + / 0 = TOTAL PAGES 70 (Count does not include cover sheet) BY: Maria Date: rip Q Is' Production Scanning Stage 1 Page Count from Scanned File: 71 (Count does include cover heet) Page Count Matches Number in Scanning Pre aration: ES NO BY: MEP Date: 7/ 3o 14 /s/ rvjI Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Stage 2 Additional Well Reports: YES NO TOTAL PAGES: Digital version appended by: Meredith Michal Date: /s/ Final Page Count: Stage 1 + Stage 2: TOTAL PAGES: Scanning is complete at this point unless rescanning is required. ReScanned BY: Maria Date: /s/ Comments about this file: Quality Checked 7/8/2014 Well History File Cover Page_20140708.doc o E 4 •c iv a7 E0 T + O O LL >. O2 N occN d cu N N rnM n :°m a) o a ma O vap oario Z 0 >, a E •E to p no f 6 ca o a)eU . Uo Cal D 2 � T . RI CI)(.9 0 .200O Q 0 a E LU L..;)- E ▪ m ct— 2 uj ya° E CO NU E o a) o 0 �.y t t • Q 17— a p' Z U u) ca a — yco) co f c a 2J 2a'Q' 0 20 LL. rt O) F-CYM O -o a) O O > N N N N N a m r 0J N yN Z p up r Nr N N e- J N N N N .4 E C - oO a) C c ca) c C c Oa) a) E V CL 0 0• 0 0 0 0 O D g v 2 al a o o o 0 0 0 0N. Z o m Y rn rn rn rn rn m Z CL • U N °' Eve E6 6 Wo w O N Cr) Z M M M m O EL fn •- o O CO �.• r -O W W J U m o '; Z ° �' z° z a m = I n' 0 J a m '° _ •7 O o &y o ). )7 0 c •T € 0 ZI U U U U O to Na) h a) a a) o)R cn in V N 0 0 E O J � N N to co) u) m Q o a- -J I— U z 0. - F3N 0 2 N a) S 0 m M Qm o c �'=^ o a) c6 1 v/ G m W Cl)• p ce Q as o ci a) Q a zI ›, w w Z6 o a > CI IS 0 o 0 1 .y .y N0 E J >, a >. a• i ai ai z M M r u) a)I m o a) 0 0 0 a• cr) as o E 17 -0 1 ' ` 0 w IX U — U — — — R Z o) 46 ` € O oN p O J •• � y � a w F- 1 A ` v `�° E N u' Q �` ✓ Q Z y C W O Z N .a.-1 0 c } O o a) N O y;. O O Q m .. a F. o Z p .- u. o) m i4 is J m I,- ca o .) C J. J - Z z V p. 0 E 5 a w J 0 \ o cc .(L) a) 4) \ � 0 H U u) T., E d p C7 F- p —y rn.`3 a o 0 o a o m o >� L c aa)) o d � re o H 3 J O FT J -J J W W J 3 Q 7 0 Q c V 0 0 N 9 ‘- r..n a z N on U_ o 0 a 0 Z a Q J q UO Z - 3 co R ci J CO G /�/ O O U W 0 IX J 0- Ill W w J U m o Z Q Y Jcn A o w o O N o E 0 U M J m Q o - U 1— ~ 2 } N Ca m O '^ O N V, p CI m Q` a o C a Z E J C3 0 r co Z • E. SI CO o -a 3 N d d a. ▪ cn V C E E ` 0 0 a 2 0 STATE OF ALASKA RECEIVED' ALASKA OIL AND GAS CONSERVATION COMMISSION UT 2 7 2011 WELL COMPLETION OR RECOMPLETION REPORT vmq tiLi �t'Gos Coins.ComrrlNssion la. Well Status: ®Oil ' 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended 1 b. rG 3s: 20AAC 25.105 20AAC 25.110 '0 Development A rC etwitory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One 0 Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska)Inc. 10/1/2011 211-092 • 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 9/13/2011 50-029-20371-02-00• 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number. Surface: 9/23/2011 • PBU C-10B - 775'FNL, 1,222'FEL,SEC. 19,T11 N, R14E, UM ' 8. KB(ft above MSL): 62.32' • 15.Field I Pool(s): Top of Productive Horizon: vPrudhoe BayField/Prudhoe Bay FNL, 1,842'FWL, SEC.20,T11 N, R14E, UM GL(ft above MSL): 32.55' � Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool . 1,155'FNL,3,501'FWL, SEC.29,T11N,R14E, UM 13,955' 9,015' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 664,143 • y- 5,960,439 'Zone- ASP4 • 13,970' 9,015' • ADL 028305.8.028310 TPI: x- 667,307 y- 5,956,558 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 669,009 Y- 5,954,886 Zone- ASP4 None 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): 18.Directional Survey: IS Yes ❑No (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1,900'(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/MCNL . 11,311' 9,040' - 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE Top BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20"x 30" Insulated Conductor Surface 110' Surface 110' 36" 12.9 cu ft Permafrost 13-3/8" 72# L-80 Surface 2.666' Surface 2.666 17-1/2" 4492 cu ft Arcticset 9-5/8" 47# L-80 Surface 8.505' Surface 6.743' 12-1/4" 1589 cu ft Class'G'. 130 cu ft Arcticset I 7" 26# L-80 8.328' 10.400' 6.642' 8.403' 8-1/2" 197 cu ft Class'G' 4-1/2" 12.6# L-80 10.225' 11.311' 8.235' 9.040' 6-1/8" 310 cu ft Class'G' 3-1/2"x3-3118" 9.3# s i .20 ,. iia. c/61.61L-80 10.825' 13.965' 8.806' 9 015' 4-1/8" 171 cu ft Class'G' 24. Open to production or injection? 0 Yes 0 No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/TVD) (MD+TVD of Top&Bottom;Perforation Size and Number): 2"Gun Diameter,6 spf 4-1/2", 12.6#, 13Cr80 10,233' 10,178'/8,190' MD ND MD ND 13,000'-13,440' 9,021'-9,021' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 13,490'-13,530' 9,019'-9,019' 13,580'-13,610' 9,020'-9,020' .'`...c.-.1N,"14, DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 13,630'-13,650' 9,021'-9,021' 1 yr 13,760'-13,790' 9,019'-9,019' 2,500' Freeze Protect w/45 Bbls of Diesel 13,820'-13,870' 9,018'-9,018' t . 13,900'-13,941' 9,018'-9,016' 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): October 14,2011 Flowing Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 10/15/2011 12 Test Period 4 1,424 729 55 176 533 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 200 1,400 24-Hour Rate♦ 712 365 28 Not Available 28. CORE DATA Conventional Core(s)Acquired? 0 Yes 0 No • Sidewall Core(s)Acquired? 0 Yes 0 No• If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. None RBDMS OCT 2 7 2011 Form 10-407 Revised 12/2009 CONTINUED ON REVERSESubmit Original Only 29. GEOLOGIC MARKERS(List all formations ar iters encountered): 30. FORMATION TESTS NAME MD TVD Well Tested? 0 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 MC 25.071. C-10B Kicked off in Zone 1 B and None was drilled entirely in Zone1 B (Marker from C-10A) These picks are from C-10A,but I think some of them may be retained for this wellbore. Zone 1B 11,149' 9,016' Formation at Total Depth(Name): Zone 16 • 11,149' 9,016' 31.List of Attachments: Summary of Daily Drilling Reports,Well Schematic Diagram,Surveys 32.I hereby certify that the foregoing i rue and correct to the best of my knowledge. Signed: Terrie Hubble 4 _6d' Title: Drilling Technologist Date: lOip��r PBU C-10B 211-092 Prepared ByName/Number: Terrie Hubble,564-4628 Well Number Permit No./Approval No. Drilling Engineer: Zach Sayers, 564-5790 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item la: Classification of Service Wells: Gas Injection,Water Injection,Water-Altemating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 MC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 MC 25.071. Form 10-407 Revised 12/2009 Submit Original Only North America -ALASKA- BP Page 1 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date:8/29/2011 End Date. X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/31/2011 00:00 - 06:00 6.00 MOB P PRE CONTINUE TO CLEAN UP RIG. CONTINUE TO MOVE RIG EQUIPMENT TO C-10 PAD. 06:00 - 06:30 0.50 MOB P PRE CREW CHANGE. DISCUSS RIG STATUS. MAKE EQUIPMENT CHECKS AND RIG ROUNDS. 06:30 - 18:00 11.50 MOB P PRE HOLD PJSM WITH TRUCK DRIVERS AND SECURITY. MOVE SATELLITE TRAILER AND MAN CAMP FROM PAD 10 TO C-PAD. CONTINUE TO LOAD OUT MICS EQUIPMENT FROM PAD 10. CONTINUE SMALL RIG MAINTENANCE PROJECTS WHILE WAITING ON SECURITY ESCORT. 18:00 - 19:00 1.00 MOB P PRE CREW CHANGE, DISCUSS ONGOING OPERATIONS WHILE WAITING ON SECURITY ESCORT. 19:00 - 19:30 0.50 MOB P PRE HOLD PJSM WITH SECURITY AND CREW. 19:30 - 00:00 4.50 MOB P PRE JACKUP RIG MOVE TO C-PAD. TRAVELING ON WEST DOCK RD.CURRENTLY 1.5 MILES FROM K-PAD RD. 9/1/2011 00:00 - 05:00 5.00 MOB P PRE MOVE RIG TO C-PAD. 05:00 - 05:30 0.50 MOB P PRE SPOT RIG IN CENTER OF C-PAD. SET RIG DOWN. 05:30 - 06:00 0.50 MOB P PRE SET RIG STAIRS DOWN. R/U SATTELITE POWER TO RIG. RIG ON STANBY WAITING FOR ORDERS TO REURN TO WORK- MUD PUMP POP VALVE LINE INVESTIGATION. 06:00 - 06:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS RIG OPS AND STATUS AFTER MOVE. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. 06:30 - 18:00 11.50 MOB N RREP PRE MEASURE AND RECORD PUMP POP OFF VALVES IN PUMP ROOM 1 AND 2. PERFORM POST MAINTENANCE RIG AUDIT WITH D&C DRILLING HSE ADVISOR. CONTINUE TO CLEAN AND PAINT INTERIOR AREAS OF RIG. 18:00 - 00:00 6.00 MOB N RREP PRE CREW CHANGE OUT.DISCUSS RIG OPS. MAKE EQUIPMENT CHECKS. CLEAN AND PAINT IN PUMP ROOM. CLEAN AND ORGANIZE IN REELHOUSE. QUADCO CHANGED OUT PRESSURE SENSOR ON HYDRAULIC CHOKE. 9/2/2011 00:00 - 06:00 6.00 MOB N RREP PRE RIG ON STANDBY WAITING FOR ORDERS TO RETURN TO WORK- MUD PUMP POP VALVE LINE INVESTIGATION. CONTINUE TO CLEAN REELHOUSE. PAINT MP ROOM STAIRS. PAINT MIX ROOM CEILING,CENTRIFUGE FEED PUMP LINES. PREP SHAKER FOR PAINT. 06:00 - 06:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS RIG PROJECT STATUS. MAKE EQUIPMENT CHECKS AND RIG'ROUNDS. ASSIGN TASKS AND COMPLETE PERMITS AS REQUIRED. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 2 of 30 Operation Summary Report Common Well Name:C-10 'AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) I Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 - 18:00 11.50 MOB N RREP PRE CONTINUE TO CLEAN RIG INTERIOR. PAINT FLOOR SECTIONS. SO&R INVESTIGATION TEAM INSPECTED PUMP PRESSURE RELIEF LINES. 18:00 - 00:00 6.00 MOB N RREP PRE CREW CHANGE. DISCUSS RIG PROJECT STATUS. MAKE EQUIPMENT CHECKS AND RIG ROUNDS. CONTINUE PAINTING ON RIG FLOOR. PAINTING IN PIT AREA. PAINT CHOKE MANIFOLD ROOM. 9/3/2011 00:00 - 06:00 6.00 MOB N RREP PRE RIG ON STANDBY WAITING FOR ORDERS TO RETURN TO WORK- MUD PUMP POP VALVE LINE INVESTIGATION. CONTINUE PAINTING ON RIG FLOOR. PAINTING IN PIT AREA. PAINT CHOKE MANIFOLD ROOM. 06:00 - 06:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS PROJECTS AND RIG STATUS. MAKE OUTSIDE CHECKS AND ROUNDS. 06:30 18:00 11.50 MOB N RREP PRE CONTINUE TO CLEAN AND PAINT RIG INTERIOR. CONTINUE TO SOURCE 3"IRON AND WELDERS FOR POP OFF LINE -REPLACEMENT. 18:00 - 18:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS PROJECTS AND RIG EQUIPMENT STATUS. 18:30 - 00:00 5.50 MOB N RREP PRE CONTINUE TO CLEAN AND PAINT RIG INTERIOR. CONTINUE PAINTING IN CHOKE ROOM. PREP ACCUMULATOR AREA FOR PAINT. PAINT ON RIG FLOOR. 9/4/2011 00:00 - 06:00 6.00 MOB N RREP PRE CONTINUE TO CLEAN AND PAINT RIG INTERIOR. PREP RIG FLOOR FOR PAINT. PAINT IN CHOKE ROOM. PREP ACCUMULATOR FLOOR FOR PAINT. 06:00 - 06:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS OPS RIG STATUS AND PROJCTS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. ORIENT PEAK WELDER.DISCUSS HSE REQUIREMENTS WHILE WORKING ON RIG. REVIEW POP OFF LINE PROJECT DETAILS. 06:30 - 18:00 11.50 MOB N RREP PRE CLEAN AND PAINT AROUND RIG. PEAK WELDER FABRICATING PREESURE RELIEF LINES IN DEADHORSE. INSTALL COIL REEL. MU HARDLINE AND ELECTRICAL CONNECTIONS. 18:00 - 18:30 0.50 MOB N RREP PRE NEW RIG CREW CHANGE OUT.DISCUSS RIG OPS,STATIS AND PROJECTS. MAKE EQUIPMENT CHECKS. REVIEW PREVIOUS WORK COMPLETED ALONG WITH ONGOING WORK. DISCUSS SAFETY EXPECTATIONS. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 3 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay I Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:©62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:30 - 00:00 5.50 MOB N RREP PRE CONTINUE TO CLEAN AND PAINT RIG INTERIOR. M/U CTB GRAPPLE TO PULL COIL ACROSS. HEAD UP CTB ENCODER. TEST AND CONFIRM STRIPPER AND CHAIN LUBE ARE WORKING. PAINT U-TUBE LINES ON MGS. PREP RIG FLOOR FOR PAINT. ASSEMBLE ELEVATORS AND SLIPS. 9/5/2011 00:00 - 06:00 6.00 MOB N RREP PRE CONTINUE TO CLEAN AND PAINT RIG INTERIOR. PAINT U-TUBE LINES ON MGS. PREP RIG FLOOR FOR PAINT. ASSEMBLE AND PAINT PIPE ELEVATORS AND SLIPS. INSTALL NEW SCREWS ON SHAKER DECK RUBBER. P/U TOOLS AND CLEANUP WORK AREA @ 05:30. 06:00 - 18:00 12.00 MOB N RREP PRE CREW CHANGE. DISCUSS RIG AND PROJECT STATUS. MAKE OUTSIDE ROUNDS AND EQUIPMENT CHECKS. CONTINUE TO REASSEMBLE HANDLING EQUIPMENT AND TOOLS. CONTINUE TO REMOVE OLD PAINT. CLEAN AND REPAINT INTERIOR EQUIPMENT OF RIG. INSPECT CHOKE LINE BELOW RIG FLOOR. INSPECT MISC HANDLING EQUIPMENT. REVIEW PESSURE RELIEF LINE WITH ADW HSE REPRESENTATIVES. 18:00 - 18:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS ONGOING OPERATIONS. DISCUSS SAFETY EXPECTATIONS TO WELDER WORKING ON MUD PUMP RELEIF LINES. 18:30 - 00:00 5.50 MOB N RREP PRE CONTINUE TO CLEAN AND PAINT RIG INTERIOR. PREP RIG FLOOR FOR PAINT. PAINT WALL BEHIND MGS. ENCLOSE ROOF AROUND MGS. WELDERS FABRICATING NEW MUD PUMP RELEIF LINES. 9/6/2011 00:00 - 06:00 6.00 MOB N RREP PRE WELDERS FABRICATING 3"MUD PUMP RELEIF LINES. CONTINUE TO CLEAN AND PAINT RIG INTERIOR. ENCLOSE ROOF AROUND MGS. PREP RIG FLOOR FOR PAINT. 06:00 - 06:30 0.50 MOB N RREP PRE CREW CHANGE. REVIEW RIG AND PROJECT STATUS WITH NIGHT CREW. MAKE EQUIPMENT CHECKS. MAKE OUTSIDE ROUNDS. 06:30 - 18:00 11.50 MOB N RREP PRE CONTINUE TO FABRICATE PRESSURE RELIEF VALVE LINES ONSITE AND OFFSITE. CONTINUE PREPPING PORTIONS OF RIG INTERIOR FOR PAINT. INSTALL MOST OF POP OFF LINE FOR PUMP #1 Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 4 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.:NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:00 - 00:00 6.00 MOB P PRE CONTINUE TO WORK ON#1 &#2 PUMP POP OFF LINES. CONTINUE PREPPING PORTIONS OF RIG INTERIOR FOR PAINT WORKING ON CRITICAL ITEMS LIST GENERATED BY NORDIC SUPERINTENDANTS. FINISH UP PLYWOOD ROOFING. 9/7/2011 00:00 - 06:00 6.00 MOB N RREP PRE CONTINUE TO FABRICATE POP OFF LINES FOR#1 &#2 PUMPS AT PEAK WELDING SHOP AND IN THE NORDIC WELDING SHOP. WORK ON CRITICAL LIST AND PREP AREAS _,FOR PAINTING. 06:00 - 06:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS RIG OPS AND STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. 06:30 - 00:00 17.50 MOB N RREP PRE CONTINUE TO PREP AND PAINT RIG FLOOR AREA. CONTINUE TO FAB PUMP#2 POP OFF LINE. PJSM TO PREP PITS FOR POP OFF LINE PENETRATION. X-RAY NORDIC 1 LINE COMPONENTS. REMOVE AND CLOSE OLD LINE ENTRY POINT IN PIT#2. PENETRATE BOTTOM OF PIT#1 FOR BOTH POP OFF LINES. INSTALL 2ND PIECE OF#1 PUMP POP OFF IN PUMP ROOM#2 AND PITS. X-RAY LINE COMPONENTS ON END OF PAD. 9/8/2011 00:00 - 06:00 6.00 MOB N RREP PRE CONTINUE TO WELD, INSPECT AND INSTALL POP OFF LINES. -INSTALLING POP OFF LINE ON#2 PUMP. -CLEANING AND PAINTING VARIOUS SECTIONS OF THE RIG. -COMPLETING ITEMS ON CRITICAL LIST. 06:00 - 06:30 0.50 MOB N RREP PRE CREW CHANGE. DISCUSS PROJECT STATUS AND OTHER INFO. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. ISSURE PERMITS FOR CONFINED SPACE AND HOT WORK. 06:30 - 19:00 12.50 MOB N RREP PRE CONTINUE TO INSTALL PUMP#2 POP OFF LINE. WORK ON CLOSING AND REINFORCING PENETRATION THROUGH BTM OF PIT#1. WORK WITH SLB TO WRITE PUMP OPERATION PROCEDURE. CLEAN UP AND PAINT NEW METAL IN PIT#1. RU TO PRESSURE TEST POP OFF LINES. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page's of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) ' Start Date: 8/29/2011 ; End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum: C-10A: @62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 21:00 2.00 MOB N RREP PRE CONDUCTED MEETING CONCERNING RIG GOING BACK TO WORK. -ATTENDEES INCLUDED(5)BP WSL,NORDIC FTOOLPUSHERS AND TOUR PUSHERS -SCHLUMBERGER OPERATORS(2) AND SCHLUMBERGER MANAGERS(2) -NORDIC SUPERINTENDANT(MEETING FACILITATOR). -ALL ATTENDEES WERE FROM NORDIC 1 AND NORDIC 2 RIGS. -MEETING ADDRESSED ADJUSTMENTS MADE,(BOTH ADMINISTRATIVE AND ENGINEERING),THAT WILL ENABLE US TO OPERATE MUD PUMPS IN A RESPONSIBLE MANNER. THESE ADJUSTMENTS INCLUDED: -SETTING HI PRESSURE TRIPS.THIS WORK IS IN PROGRESS AND WILL ALLOW FOR TRIPS TO BE SET ON BOTH PUMPS SIMULTANEOUSLY,WHETHER ONE IS IN USE OR NOT.APPROXIMATE TIME TO COMPLETION...5 DAYS. -PUMP START UP"GUIDELINE"GENERATED BY NORDIC. -SCHLUMBERGER PROCEDURE#713. -SCHLUMBERGER MANAGEMENT TO BE PRESENT DURING PUMP OPERATIONS TO ASSESS SKILL LEVELS OF OPERATORS. -COVER OVER NON TRIP PROTECTED RHEOSTAT TO PREVENT NON INTENTIONAL OPERATION. -WILL CAPTURE EVERY TIME A PRESSURE RELIEF VALVE IS FUNCTIONED AND EXPLAIN WHY. -AGREEMENT MADE TO USE BETTER COMMUNICATIONS WHEN BRINGING ON A PUMP SO AS TO KEEP THE FOCUS LEVEL OF THE ENTIRE TEAM UP. -KEEP DISTRACTIONS TO THE OPERATOR AT A MINIMUM DURING OPERATIONS. 21:00 - 00:00 3.00 MOB N RREP PRE CONTINUE TO PRESSURE TEST POP OFF LINE(S).250/5000 PSI. -ALL TESTS SUCCESSFUL. 9/9/2011 00:00 - 02:00 2.00 MOB P PRE REMOVE SCAFFOLDING FROM AROUND WELL. -SPOT MATTING BOARDS. 02:00 - 02:30 0.50 MOB P PRE PJSM ON MOVING RIG OVER WELL. -EMPHASIS ON GOOD COMMUNICATION AND TASK DELEGATION. -PAD OPERATOR NOTIFIED AND WITNESSING. 02:30 - 04:00 1.50 MOB P PRE MOVE RIG OVER WELL AND CENTER UP AND LEVEL SAME. -RIG ACCEPTED @ 04:00 HRS. 04:00 - 06:00 2.00 BOPSUR P PRE PJSM. BEGIN WU BOPE. 06:00 - 06:30 0.50 BOPSUR P PRE CREW CHANGE. DISCUSS RIG STATUS AND OPS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO NU BOPS. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 6 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 - 10:30 4.00 BOPSUR P PRE CONTINUE TO NU BOPS. UPDATE AOGCC REGARDING BOP TEST TIME FRAME. 10:30 - 14:30 4.00 RIGU P PRE PULL AND STAB COIL INTO INJECTOR. CONTINUE TO SPOT EQUIPMENT AND RIG UP WELLSITE. SPOT FLOW BACK TANK. MU AND TEST HARDLINE TO 3500 PSI. 14:30 - 15:30 1.00 RIGU P PRE HOLD COMBO RIG EVACUATION/ H2S DRILL. DEBRIEF WITH AAR DOCUMENTATION. 15:30 - 19:00 3.50 BOPSUR P PRE ATTEMPT TO PERFORM BOP BODY TEST.250 /4500 PSI. -VALVE#3 ON MUD MANIFOLD LEAKING. REPLACE PADDLE AND SEAT. CLEANED HAND CHOKE SEALS AND GREASED. -BOPE FUNCTION TESTED USING REMOTE IN OPS CAB. 19:00 - 22:00 3.00 BOPSUR P PRE HANG INJECTOR SERVICE LOOP -INSTALL"T"ON MUD GAS SEPARATOR U TUBE LINE. 22:00 - 00:00 2.00 BOPSUR P PRE« RESUME PRELIMINARY TEST ON BOPE. 9/10/2011 00:00 - 01:00 1.00 BOPSUR P PRE COMPLETE PRELIMINARY BOPE TEST. 01:00 - 05:00 4.00 BOPSUR P PRE CONDUCT FULL BOPE TEST AS PER AOGCC REG . -TE TING DONE @ 250/3500 PSI/5 MIN EACH ON ALL COMPONENTS. -OPERATION OF BOPE DURING TEST DONE WITH DRILLER'S CONSOLE REMOTE. 05:00 - 06:00 1.00 BOPSUR P PRE CONDUCT RIG EVACUATION,H2S COMBINATION DRILL. - AAR CONDUCTED POST DRILL,PERSONAL REPORTED TO SATELLITE CAMP. 06:00 - 06:30 0.50 BOPSUR P PRE CREW CHANGE. DISCUSS RIG AND OPS STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. ISSUE PERMITS. 06:30 - 10:30 4.00 BOPSUR P PRE CONTINUE TO PERFORM BOP TEST. TEST COMPLETED AS PER PERMIT TO DRILL, AOGCC REGULATIONS,AND BP ADWOP POLICIES. NO FAILURES NOTED. TEST RESULTS TRANSMITTED TO AOGCC IN, ANCHORAGE. 10:30 - 13:30 3.00 BOPSUR P WEXIT HOLD PJSM. IrzU DSM LUBRICATOR. PT TO 250 AND 4000 PSI FOR 5 MIN. ENGAGE AND PULL TWC. NOTE 1660 PSI WHP. SHUT IN WELL. BLEED GAS TO FLOW BACK TANK. RD LUBRICATOR AND REMOVE FROM RIG. LOAD PIS WTH 2%SLICK KCL W/SAFE-LUBE. 13:30 - 17:15 3.75 BOPSUR P WEXIT HOLD PJSM. RU TO PUMP ELINE SLACK IN REEL. FILL REEL WITH KCL. PRESSURE TEST INNER REEL VALVE TO 300 AND 3500 PSI. PRESSURE TEST PACKOFFS TO 300 AND 3500 PSI. - 17:15 - 18:00 0.75 BOPSUR P WEXIT REVERSE CIRCULATE E-LINE BACK INTO COIL. 18:00 - 20:30 2.50 BOPSUR P WEXIT PJSM. CUT OFF 225'OF COIL. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 7 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 21:30 1.00 KILLW N SFAL WEXIT TROUBLE SHOOT INJECTOR,CHANGE OUT ENCODER. 21:30 - 00:00 2.50 KILLW P WEXIT INSTALL COIL TBG CONNECTOR. PULL TEST TO 35K. -PUMP WIRE FORWARD TO ALLOW BAKER TO HEAD UP. -BAKER HEADING UP. 9/11/2011 00:00 - 01:00 1.00 KILLW P WEXIT FINISH REHEADING(BAKER) -PRESSURE TEST @ 3800 PSI,OK. -TEST CHECKS,GOOD TEST. -SECURE INJECTOR. 01:00 - 01:30 0.50 KILLW P WEXIT PJSM W/REGARD TO BULLHEAD KILL. -DOUBLE CHECK VALVE ALIGNMENT. -PRESSURE UP AGAINST SWAB VALVE,1700 PSI. -OPEN SWAB AND MASTER VALVE,33 TURNS EACH. 01:30 - 02:30 1.00 KILLW P. WEXIT BRING ON PUMP @ 2 BPM/1650 PSI. -WALK AROUND,MAKE SURE EVERYTHING GOOD. -BRING PUMPS UP TO 6 BPM, BULL HEADING DOWN 4 1/2"TBG. -PUMPING 8.4 PPG 2%KCL W/SAFE LUBE. -50 BBLS AWAY/1450 PSI,100 BBLS AWAY/ 1150 PSI. -150 BBLS AWAY/500 PSI,200 BBLS AWAY/ 600 PSI. -250 BBLS AWAY/750 PSI,300 BBLS AWAY/ 825 PSI. -@ 180 BBLS AWAY/150 PSI,PRESSURE BEGAN CLIMBING AS FLUID HIT PERFS. 02:30 - 03:00 0.50 KILLW P WEXIT MONITOR WELL/30 MIN/WELL ON VACUUM. 03:00 - 03:15 0.25 KILLW P WEXIT AAR ON WELL KILL. -PJSM FOR BRINGING BAKER TOOLS TO FLOOR AND MAKING UP. 03:15 - 04:00 0.75 KILLW P WEXIT BRING UP WHIPSTOCK SETTING TOOLS. -AFTER(1)HOUR, FILL HOLE,42 BBLS TO FILL. 04:00 - 06:00 2.00 KILLW N RREP WEXIT TROUBLE SHOOT"IN"MICRO MOTION METER. 06:00 - 06:30 0.50 KILLW P WEXIT CREW CHANGE. DISCUSS RIG STAUS AND CURRENT OPS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO WORK ON MICROMOTION IN. 06:30 - 12:00 5.50 KILLW P WEXIT CONTINUE TO FILL AND MONITOR HOLE. TAKING UP TO 120 BPH. RATE TOO HIGH TO SET WHIPSTOCK/PACKER ASSEMBLY. DISCUSS WITH TOWN. CALL FOR LCM FROM MI. ORDER 250 BBLS USED FLOPRO FROM MI. CONTINUE TO PUMP 60 BPH IN TO WELL. 12:00 - 13:00 1.00 KILLW P WEXIT MIX 50 BBLS 20 PPB(2PPB g-SEAL,6 PPB MIX II COARSE,6 PPBMIX II MEDIUM,3 PPB NUT PLUG FINE,3 PPB SAFE CARB 40) Printed 10/17/2011 1:41.50PM North America -ALASKA- BP Page 8 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date:8/29/2011 End Date: 'X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.:NORDIC 2 •Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 14:30 1.50 KILLW P WEXIT PUMP 10 BBLS LCM. CHASE WITH 175 BBLS 2%KCL. 550 PSI WHP AT 3.3 BPM. REDUCE RATE TO 0.5 BPM WITH 165 BBLS TOTAL PUMPED. 110 PSI WHP AT 0.5 BPM. PUMP 175 BBLS TOTAL. 14:30 - 15:00 0.50 KILLW P WEXIT CIRCULATE ACROSS THE WELL. PVT AT "START: 184 BBLS @ 1436 HRS. 180 BBLS @ 1441 HRS. 15:00 - 16:45 1.75 KILLW P WEXIT PUMP ADDITIONAL 40 BBLS LCM. 2.95 BPM AT 2050 PSI, WITH 170 BBLS PUMPED, REDUCE RATE TO 1 BPM. WHP: 1580 PSI. WITH 193 BBLS PUMPED,REDUCE RATE TO 0.5 BPM. WHP: 1930 PSI. WITH 210 BBLS PUMPED,WHP:2550 PSI. SHUT DN PUMP.BLEED WELLHEAD. 16:45 - 17:15 0.50 KILLW P WEXIT' CIRCULATE ACROSS TOP OF WELL. PVT 360 BBLS AT 1652 HRS. 358 BBLS AT 1703 HRS. LOSS RATE<15 BPH. 17:15 - 19:00 1.75 STWHIP P WEXIT MU WHIPSTOCK ON INTEQ TOOLS. -MAKE UP INJECTOR TO WELL. PERFROM PRE TRIP FLUIDS CHECK. I-TEST QTS,GOOD TEST. 19:00 - 22:15 3.25 STWHIP P WEXIT RIH W/WHIPSTOCK SETTING BHA. -RIH @ 70 FPM,PUMPING.4 BPM OF 8.4 PPG KCL. -@ 11,000',28K DOWN WT,41K UP WT. 22:15 - 00:00 1.75 STWHIP P WEXIT LOG TIE IN FROM 11,050'-11.250',SUBTRACT 25'CORRECTION. -RIH TO 11,380'&LOG UP(CCL).COLLAR LOCATED @ 11,305'. 9/12/2011 00:00 - 01:00 1.00 STWHIP P WEXIT PROGRAM CALLS FOR TOP OF WHIPSTOCK @ 11,300',COLLAR @ 11,305'. -ATTEMPT TO ESTABLISH COMMUNICATION WITH TOWN ENGINEER(S) -CONSULT WITH SUPERINTENDANT KEN MILLER. -OK GIVEN TO CONSULT DD AND GEOLOGIST IN FIELD TO ADJUST DEPTH. -MAKE DECISION TO SET TOP OF WHIPSTOCK @ 11,308'. -RIH TO 11,350'&PULL UP TO 11,323.64'& PARK. TF 90R. 01:00 - 01:45 0.75 STWHIP P WEXIT SHUT DOWN PUMP,CLOSE EDC.TF 90R. -BRING ON PUMP AND PRESSURE UP COIL TO 1800 PSI&OBSERVE SET. -RELEASED FROM WHIPSTOCK,POOH TO 11,300'.HOLE FULL. -PERFORM 10 MINUTE FLOW CHECK,WELL STABLE, HOLE STAYING FULL. 01:45 - 04:00 2.25 STWHIP P WEXIT PJSM. POOH W/WHIPSTOCK SETTING BHA. -NO LOSS OR GAIN ON WAY OUT,TAKING RIGHT AMOUNT OF FLUID. 04:00 - 06:00 2.00 STWHIP P WEXIT PJSM. FLOW CHECK,10 MIN,WELL STABLE. -BREAK OFF INJECTOR,LAY DOWN WHIPSTOCK SETTING TOOL. -AAR ON LAYING DOWN BHA.PJSM ON PICKING UP WINDOW MILLING BHA. -PICK UP WINDOW MILLING BHA. Printed 10/17/2011 1.41:50PM North America -ALASKA- BP Page 9 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 06:30 0.50 STWHIP P WEXIT CREW CHANGE. DISCUSS RIG STATUS AND OPS WITH NIGT CREW. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO PU WINDOW MILLING BHA. 06:30 - 10:15 3.75 STWHIP P WEXIT STAB COIL. TEST TOOLS. GET ON WELL. PT LUBRICATOR CONNECTION. RUN IN HOLE. 10:15 - 13:15 3.00 STWHIP P WEXIT LOG GR TIE IN FROM 11,045'TO 11150'. SUBTRACT 10'CORRECTION. RIH. TAG WHIPSTOCK AT 11,310'. PU AND DISPLACE COIL TO NEW FLOVIS MUD. ACQUIRE SLOW PUMP RATES. 13:15 - 16:00 2.75 STWHIP P WEXIT MILL WINDOW AS PER WELLPLAN. MILL INITIAL 1'SLOWLY INCREASING WOB FROM 11,311.3'. 7.52 BPM TROUT AT 2100 PSI FS. 100-12=150 PSI MTR WORK. DHWOB:2.2.5K# MILL AHEAD AT 0.1'AS WEIGHT AND DRILL ALLOWS. MILL TO 11,315'. 16:00 - 18:00 2.00 STWHIP P WEXIT CONTINUE TO MILL AHEAD AS PRESCRIBED IN PROGRAM. - 2-2.5K WOB,300-400 DIFFERENTIAL PRESSURE,@ 11,316.5'. 18:00 - 22:15 4.25 STWHIP P WEXIT CONTINUE MILLING WINDOW,MILLING 1 4A 1/10TH OF_ A FOOT EVERY 5-6 MIN. -2.5 BPM/1900 PSI FREE SPIN,2KWOB,200 -300 PSI MOTOR WORK. -@ 11,321'WITH 1'OF FORMATION MILLED. -CALLING TOW @ 11,311',BOW©11,320'. 22:15 - 00:00 1.75 STWHIP P WEXIT MILL FORMATION @ 10-15 FPH TO 11.332'. 9/13/2011 00:00 - 00:15 0.25 STWHIP P WEXIT FLOW CHECK PRIOR TO POOH,WELL STABLE. 00:15 - 02:30 2.25 STWHIP P WEXIT OPEN EDC,POOH W/WINDOW MILLING BHA. 02:30 - 02:45 0.25 STWHIP P WEXIT PJSM FOR LAYING DOWN BHA. 02:45 - 03:00 0.25 STWHIP P WEXIT AT SURFACE,FLOW CHECK,WELL STABLE. -NO LOSSES OR GAINS DURING TRIP OR ISI CLi✓ WHILE MILLING WINDOW. p-T'D 03:00 - 05:00 2.00 STWHIP P WEXIT POP OFF WELL,STAND BACK INJECTOR. -LAY DOWN WINDOW MILLING BHA,GAUGE MILLS, IN GAUGE,(3.80"). -CHECK TORQUE ON TREE BOLTS,GOOD. -PICK UP LATERAL SECTION BHA W/ RESISTIVITY TOOL. -1.1 DEG AKO MTR WITH HYCALOG RAPTOR BIT. 05:00 - 06:00 1.00 DRILL P PROD1 RIH W/LATERAL SECTION BHA @ 95 FPM, PUMPING.35 BPM. 06:00 - 06:30 0.50 DRILL P PROD1 CREW CHANGE. DISCUSS RIG STATUS AND OPS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO RIH WITH LATERAL BHA. 06:30 - 07:30 1.00 DRILL P PROD1 CONTINUE TO RIH. CIRC AT 985 PSI AT 0.32 BPM. 07:30 - 08:00 0.50 DRILL P PROD1 LO GR TIE IN FROM 11050'. SUBTRACT 11' CO RECTION. CO TINUE TO RUN IN HOLE. Printed 10/17/2011 1.41.50PM North America -ALASKA- BP Page 10 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time: 7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 11:00 3.00 DRILL P PROD1 PASS THROUGH WINDOW OK. DRILL AHEAD FROM 11,332'. 2200 PSI FS AT 2.71 BPM IN/OUT. 100-250 PSI MTR WORK. 2-3K#DHWOB. PVT:372 BBLS. BHP/TVD/ECD:5004 PSI/ 8977'/9.77 PPG DRILL TO 11,420'. 11:00 - 15:20 4.33 DRILL P PROD1 CONTINUE TO DRILL AHEAD IN Z1 B LATERAL SECTION TO 11,523'. LOSE MOTOR WORK AT 11,523'. ATTEMPT TO PU-BHA STUCK. WORK PIPE 2X FROM 10K TO 70K-LBS. SEE 3K-LBS TO-20K-LBS DHWOB. ORIENTER TURNING FREELY. PULL BHA FREE AT 80K-LBS. 15:20 - 15:40 0.33 DRILL P PROD1 WIPER TRIP FROM 11,523'TO WINDOW. NO ISSUES NOTED. 15:40 - 16:15 0.58 DRILL P PROD1 CONTINUE TO DRILL AHEAD FROM 11,523'TO 11,535'. ROP SLOWING TO LESS THAN 10-FPH WITH 4-5K-LBS DHWOB. DECIDE TO POH AND CHANGE BIT. 16:15 - 19:15 3.00 DRILL P PROD1 FLOW CHECK WELL-STATIC. POH WITH LATERAL DRILLING ASSEMBLY. BUMP UP IN LUBRICATOR AND FLOW CHECK WELL-STATIC. UNSTAB INJECTOR HEAD AND SET BACK OVER CIRC HOLE. 19:15 19:45 0.50 DRILL P PROD1 LD LATERAL DRILLING BHA. BIT IS BALLED WITH CLAY AND 1-JET IS PLUGGED. GRADED BIT AT 1:1 WITH NO VISIBLE DAMAGE. 19:45 - 20:15 0.50 DRILL P PROD1 MU LATERAL DRILLING BHA WITH NEW HCC 3.75"X 4.125"RWD2ST3053.75 BICENTER BIT. 20:15 - 21:00 0.75 DRILL P PROD1 MU COIL TO BHA AND STAB ON INJECTOR HEAD. TEST QTS TO 250-PSI/350-PSI FOR 5-CHARTED MINUTES PER TEST. GOOD TESTS. 21:00 - 23:30 2.50 DRILL P PROD1 ESTABLISH CIRCULATION AT.45-BPM WITH 740-PSI. RIH WITH LATERAL DRILLING BHA. IA/OA/PVT=10-PSI/275-PSI/300-BBLS. 23:30 - 00:00 0.50 DRILL P PROD1 TIE IN TO CASED HOLE TIE-IN STARTING AT 11,150'. APPLY-8'CORRECTION. IA/OA/PVT=15-PSI/200-PSI/360-BBLS. _ 9/14/2011 00:00 - 00:30 0.50 DRILL P PROD1 CONTINUE TO RIH. SHUT DOWN PUMP WHILE PASS THROUGH WINDOW. NO ISSUES NOTED. RESUME CIRCULATION AND RIH. TAKE SPRS WITH BOTH PUMPS. MP#1 - .5-BPM/1150-PSI,1-BPM/1355-PSI. MP#2- .5-BPM/1140-PSI,1-BPM/1350-PSI. INCREASE RATE TO 2.6-BPM WITH 2280-PSI AND CONTINUE TO RIH AT 25-FPM TO TAG BOTTOM AT 11,535'. Printed 10/17/2011 1:41:50PM ,f_ �. 11 of 30 North America -ALASKA- BP Page. Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:30 - 02:30 2.00 DRILL P PROD1 DRILL AHEAD IN LATERAL SECTION FROM 11,535'TO 11,587'. FS AT 2.6-BPM WITH 2280-PSI. DRILL AHEAD WITH VERY LOW ROP. MOTOR WORK BETWEEN 40 AND 150-PSI. RUN 2K- 6K-LBS DHWOB. ROP IMPROVES AT 11,553'WITH MOTOR WORK UP TO 500-PSI AND 3-4K-LBS DHWOB. IA/OA/PVT=20-PSI/190-PSI/358-BBLS. 02:30 - 03:45 1.25 DRILL P PROD1 WIPER TRIP TO WINDOW. DROP PUMP TO MIN RATE AND PULL THROUGH WINDOW WITHOUT ISSUE. FLOW CHECK WELL FOR 30-MINUTES- STATIC WITHOUT FLOW TO POSSUM BELLY BUT OUT MM READING.1-BPM FLOW OUT. BLOW DOWN OUT MM-NO FLOW READING OR OBSERVED. ESTABLISH CIRCULATION AT.42-BPM WITH 1160-PSI. CONFIRM ONE FOR ONE RETURNS (IN MM READING.42-BPM,OUT MM READING 41-BPM). IA/OA/PVT=115-PSI/364-PSI/356-PSI (BEFORE RIH). RIH TO 11,587. 03:45 - 08:00 4.25 DRILL P PROD1 DRILL AHEAD IN LATERAL SECTION FROM 11,587'. —FLEE SPIN=2.5-BPM WITH 2315-PSI. DRILL AHEAD WITH 100-500-PSI MOTOR WORK AND 1.5-4.5K-LBS DHWOB. SEEING SOME MUSHY WADS OF CLAY ACROSS SHAKERS-NOTIFY MUD ENGINEER AND PREPARE FOR DISCUSSION WITH CTD ENGINEERING TEAM. IA/OA/PVT=300-PSI/440-PSI/358-BBLS DRILL TO 11750 FT. 08:00 - 09:00 1.00 DRILL P PROD1 WIPER TRIP TO_WINDOW. CLEAN PASS UP AND DOWN. GET SLOW PUMP PRESSURES ON BOTTOM. 09:00 - 09:30 0.50 DRILL P PROD1 DRILL ZONE 1B FROM 11750 FT. 09:30 - 10:00 0.50 DRILL P PROD1 DRILL FROM 11790 FT. ROP IS 100 FT/HR WITH 1.2K DWOB. PVT=372 BBLS. 2.62/2.62 BPM @ 2400-2650 PSI. DRILL ZONE 1B TOWARDS 8961 FT ND @ 12,000 FT. 10:00 - 11:00 1.00 DRILL P PROD1 DRILL ZONE 1B FROM 11830 FT AT 100 FT/HR WITH 1.51K DWOB. 2.63/2.63 BPM @ 2550 PSI. GOOD WT TRANSFER. MIX AND PUMP 20 BBL VISCOUS PILL. 11:00 - 12:00 1.00 DRILL P PROD1 DRILL AT 11886 FT AT 20 FT/HR WITH 5K DWOB. ECD=10.15 PPG. 2.65/2.67 BPM @ 2500 PSI. NO UNUSUAL CUTTINGS NOTED WHEN VISCOUS PILL RETURNS TO SURFACE. DRILL TO 11895 FT. 12:00 - 12:30 0.50 DRILL P PROD1 WIPER TRIP TOWINDOW. PULL THROUGH WINDOW AND TRY TO OPEN EDC,TO PUMP B/U ATA HIGH RATE. NOT ABLE TO FUNCTION EDC,WON'T OPEN. NO ABILITY TO DISCONNECT, POOH. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 12 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 15:00 2.50 DRILL P PROD1 POOH FOR EDC CHANGE. 15:00 - 15:15 0.25 DRILL P PROD1 TAG STRIPPER AND FLOW CHECK WELL. TRIP SHEET IS-9 BBLS. PJSM FOR CHANGING OUT BHA. 15:15 - 16:00 0.75 DRILL P PROD1 M/U BHA#5. RE-RUN SAME BIT AND MOTOR. M/U CT RISER AND PRESSURE TEST QUICK i TEST SUB. 16:00 - 19:00 3.00 DRILL P PROD1 RIH WITH BHA#5. CIRCULATE AT MIN RATE. 19:00 - 19:30 0.50 DRILL P PROD1 CTS OPERATOR AND SECOND COMPLETE PUMP OPERATION ASSESSMENT WITH CTS CELL LEADER. 19:30 - 20:00 0.50 DRILL P PROD1 TIE IN TO CASED HOLE TIE IN. APPLY-25'CORRECTION. CORRECTION GREATER THAN PREVIOUSLY SEEN DUE TO COUNTER ADJUSTMENT SCREW ISSUES DURING RIH. SCREW WAS ADJUSTED AND IS WORKING.CORRECTLY. 20:00 - 20:20 0.33 DRILL P PROD1 DROP PUMPS TO.5-BPM AND PASS THROUGH WINDOW WITHOUT ISSUE. CONTINUE TO RIH,CIRCULATING AT 2.1-BPM WITH 2070-PSI. IA/OA=55-PSI/300-PSI. 20:20 - 21:45 1.42 DRILL P PROD1 DISPLACE WELL TO 9.1-PPG POWERPRO FLUID AT 2.6-BPM WITH 2450-PSI INITIALLY. TAG BOTTOM AT 11,896'. PU AND SLOWLY RECIPROCATE COIL WHILE DISPLACING. GOOD 9.1-PPG POWER PRO RETURNS WITHIN 5-BBLS OF CALCULATED HOLE VOLUME. SMALL AMOUNT OF MUSHY CLAY RETURNS NOTED JUST AHEAD OF NEW MUD. 21:45 - 22:15 0.50 DRILL P PROD1 ISOLATE PIT 3 AND TAKE ALL NEW MUD RETURNS THERE TO ESTABLISH SURFACE VOLUME TO DRILL AHEAD. TRANSFER REMAINING 9.1-PPG FLUID FROM VAC TRUCK TO PIT 3. CIRCULATING AT 2-BPM WITH 1850-PSI. IA/OA=100-PSI/305-PSI. 22:15 - 00:00 1.75 DRILL P PROD1 OBTAIN SPRS WITH NEW 9.1-PPG POWER PRO. MP#1 -1-BPM/1260-PSI&2.5-BPM/2210-PSI. MP#2-1-BPM/1235-PSI/2.5-BPM/2205-PSI. FREE SPIN AT 2.4-BPM WITH 2135-PSI. RESUME DRILLING AHEAD WITH LOW ROP, bU I 0 300-PSI MOTOR WORK AND 3- 4.5K-LBS DHWOB. IA/OA/PVT/ECD-90-PSI/300-PSI/ 89-BBLS(PIT 3)/10.1-PPG. 9/15/2011 00:00 - 00:40 0.67 DRILL P PROD1 CONTINUE TO DRILL FROM 11,910'TO 11.918'. VERY LOW ROP WITH MOTOR WORK BETWEEN 50 AND 100-PSI. RUNNING 2-5K DHWOB. MUSHY CUTTINGS WITH SMALL"CREAM OF WHEAT'LUMPS PERIODICALLY COMING ACROSS SHAKERS. 00:40 - 01:00 0.33 DRILL P PROD1 MAKE SHORT WIPER TRIP TO 11,750'. NO ISSUES NOTED ON TRIP. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 13 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time: 7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:00 - 04:00 3.00 DRILL P PROD1 CONTINUE TO DRILL AHEAD FROM 11,918'TQ 11,938' FREE SPIN AT 2.4-BPM WITH 2090-PSI AND 2.6-BPM WITH 2250-PSI. DRILL AHEAD WITH VERY LOW ROP. SEE MOTOR WORK BETWEEN 100 AND 200-PSI. RUN 2K-4.5K-LBS DHWOB. MUSHY CUTTINGS CONTINUE TO BE RETURNED ACROSS SHAKERS. HOLD 93-DEG INCLINATION TO ACHIEVE PLAN. IA/OA/PVT/ECD=220-PSI/415-PSI/ 368-BBLS/10.3-PPG. 04:00 - 04:30 0.50 DRILL P PROD1 MAKE WIPER TRIP FROM 11,938 TO 11,738'at 25-FPM. CIRCULATE AT 2.6-BPM WITH 2250-PSI. NO ISSUES NOTED ON TRIP. 04:30 - 09:30 5.00 DRILL P PROD1 CONTINUE TO DRILL AHEAD FROM 11,938'. TREE SPIN AT 2.6-BPM WITH 2290-PSI. DRILL AHEAD WITH LOW ROP,100 TO 200-PSI MOTOR WORK AND 3 TO 4.5K-LBS DHWOB. MUSHY CUTTINGS WITH LUMPS CONTINUE STEADILY. IA/OA/PVT/ECD=375-PSI/530-PSI/ 367-BBLS/10.35-PPG. 09:30 - 11:30 2.00 DRILL• P PROD1 CONTINUE DRILLING ZONE 1B. LEVEL OFF AFTER 12000 FT TO EXTEND THE LATERAL IN CLEAN SAND. 2.51 /2.50 BPM @ 2100-2300 PSI. START ADDING 10.4 BBLS OF CLAY-GUARD TO BRING CONCENTRATION UP TO 14 PPB. ROP IS VARIABLE WITH THIN SHALE ZONES BEING DRILLED THROUGH. DRILL TO 12050 FT. 11:30 - 12:30 1.00 DRILL P PROD1 WIPER TRIP TO WINDOW. CONTINUE ADDING CLAY-GUARD TO SYSTEM TO BRING UP CONCENTRATION TO 14 PPB. CLEAN PASS UP AND DOWN. 12:30 - 15:50 3.33 DRILL P PROD1 DRILL FROM 12050 FT. HOLD 89-90 DEG FOR NOW TO STAY IN GOOD SAND. 2.76/2.76 BPM @ 2400-2600 PSI. ROP IS 60-100 FT/HR WITH 1-2K DWOB. GOOD WEIGHT TRANSFER. DRILL TO 12200 FT. 15:50 - 17:00 1.17 DRILL P PROD1 WIPER TRIP TO WINDOW. CLEAN PASS UP. MOTOR WORK SEEN AT 11560 FT GOING DOWN. BLEED IA FROM 600 PSI TO 100 PSI.-LIQUID BLEED OA FROM 750 PSI TO 50 PSI.-LIQUID/ GAS MIX. 17:00 - 19:45 2.75 DRILL P PROD1 DRILL FROM 12,200'. FREE SPIN AT 2.75-BPM WITH 2450-PSI. 150-300-PSI MOTOR WORK. 2.5-3.5K-LBS DHWOB. FAIRLY STEADY HIGH ROP WITH SANDY RETURNS. PUMP 20-BBL HI VIS SWEEP SO THAT IT TURNS THE CORNER JUST BEFORE WIPER TRIP. STALL 3X AT 12,348'BUT ABLE TO CONTINUE DRILLING AHEAD TO 12,350'. IA/OA=130-PSI/100-PSI. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 14 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) I Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:45 - 20:30 0.75 DRILL P PROD1 WIPER TRIP TO WINDOW. -CIRCULATING AT 2.7-BPM WITH 2450-PSI. SEE MOTOR WORK AND 6K-LB OVERPULLS AT 11,560'AND 11,520'(FIRST SHALE CROSSED BY LATERAL). NOTHING OF NOTE RETURNED WITH SWEEP. 20:30 - 21:15 0.75 DRILL P PROD1 DROP PUMP RATE AND PULL THROUGH WINDOW WITHOUT ISSUE. MAKE SMALL JOG JUST ABOVE WINDOW. OPEN EDC AND BREAK CIRCULATION AT 3.9-BPM WITH 2960-PSI. CONTINUE TO POH TO 10,900'(TO GET TO HOLE INCLINATION LESS THAN 45-DEG). SEE STEADY SAND IN RETURNS WITH SLIGHT INCREASE AT FIRST BU,CLEANING UP THEREAFTER. IA/OA=170-PSI/160-PSI. 21:15 - 21:40 0.42 DRILL P PROD1 LOG CASED HOLE TIE IN. APPLY+6'CORRECTION. RIH TO JUST ABOVE WINDOW. CLOSE EDC. 21:40 - 22:25 0.75 DRILL P PROD1 RIH THROUGH WINDOW WITHOUT ISSUE. CONTINUE TO WIPER TO BOTTOM AT'J 25-FPM. PUMP AT.8-BPM WITH 1230-PSI THROUGH UPPER SHALE SECTIONS(11,520'TO 11,670'). CLEAN PASS. INCREASE RATE TO 2.3-BPM WITH 2100-PSI. OBTAIN SLOW PUMP RATES-MP#1 -1-BPM/ 1405-PSI,2.5-BPM/2320-PSI. MP#2-1-BPM/ 1380-PSI,2.5-BPM/2340-PSI. 22:25 - 00:00 1.58 DRILL P PROD1 DRILL AHEAD IN LATERAL FROM 12,3.54'TO 12,444'. FREE SPIN AT 2.67-BPM WITH 2435-PSI. DRILL AHEAD WITH 200-500-PSI MOTOR WORK AND 2-4K-LBS DHWOB. STALL ONCE AT 12,436'. DRILL AHEAD WITHOUT ISSUE. APPEAR TO HAVE CROSSED SECOND FAULT AT 12,320'-RESISTIVITY INCONSISTENCY. IA /OA/PVT/ECD=180-PSI/180-PSI/ 367-BBLS/10.32-PPG. 9/16/2011 00:00 - 01:20 1.33 DRILL P PROD1 DRILL AHEAD FROM 12,444'TO 12,500'. FREE SPIN AT 2.7-BPM WITH 2435-PSI. DRILL AHEAD WITH 200-400-PSI MOTOR WORK AND 2.5-4.5K-LBS DHWOB. ROP SLOWS AT 12,452', INCREASE DHWOB TO 4-5K-LBS DHWOB. SAMPLES ARE SHOWING SOME CHERT. HOLDING INCLINATION TO KEEP BETWEEN 8960'AND 8961'TVD. CUTTINGS ARE SANDY WITHOUT ANY NOTICEABLE CLAY ISSUES. IA/OA/PVT/ECD=245-PSI/210-PSI/ 365-BBLS/10.32-PPG. Printed 10/17/2011 1:41:50PM North America-ALASKA- BP Page 15 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time. 7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:20 - 02:45 1.42 DRILL P PROD1 WIPER TRIP AT 25-FPM FROM 12,500'. CIRCULATE AT 2.6-BPM WITH 2420-PSI. SEE 20K-LB OVERPULL&NO MOTOR WORK AT 12,000'AND 11,958'ON TRIP TO WINDOW (LOWER SHALE SECTION). REDUCE PUMP RATE TO 1-BPM 1300-PSI ON RIH THROUGH SHALE SECTIONS FROM 11,520'TO 11,700'-NO ISSUES. INCREASE PUMP-RATE TO 2-BPM WITH 2030-PSI. NO FURTHER ISSUES NOTED DURING RIH. IA/OA/PVT=270-PSI/225-PSI/364-BBLS. 02:45 - 06:00 3.25 DRILL P PROD1 DRILL AHEAD FROM 12,500'TO 12,554'. FREE SPIN AT 2.7-BPM WITH 2500-PSI. DRILL AHEAD WITH 200-400-PSI MOTOR WORK AND 2-5K-LBS DHWOB. MAKE BHA WIPERS AT 12,544'AND 12,549'. WEIGHT TRANSFER IS CHALLENGING AFTER 12,544'. SUSPECT DUE TO 180-DEG ORIENTATION CHANGE AT 12,520'. CUTTINGS ARE MAINLY SAND WITH A VERY, SMALL AMOUNT OF MUSHY C_L,'. PUMP 10-BBL HI VIS SWEEP. IA/OA/PVT/ECD=300-PSI/240-PSI/ 361-BBLS/10.6-PPG. 06:00 - 09:00 3.00 DRILL P PROD1 DRILL FROM 12554 FT. LOW ROP WITH 4-5K DWOB. 2.79/2.81 BPM @ 2600-3200 PSI. ECD= 10.59 PPG AT FULL RATE. PVT=353 BBLS. IA/OA=349/275 PSI. GOOD WEIGHT TRANSFER AND SLIDING, CLEAN PICKUPS. 09:00 - 13:20 4.33 DRILL P PROD1 DRILL FROM 12583 FT. HIGH DWOB IS REQUIRED TO ACHIEVE EVEN LOW ROPS, LESS THAN 10 FT/HR. POOH FOR BIT. PULL THROUGH WINDOW AND OPEN EDC. PUMP B/U AT 4 BPM THEN FLOW CHECK WELL,NO FLOW. CONTINUE POOH. 13:20 - 13:35 0.25 DRILL P PROD1 TAG STRIPPER AND FLOW CHECK WELL. PJSM FOR UD BHA. 13:35 - 14:10 0.58 DRILL P PROD1 L/D BHA#5. BIT IS 6-2,SLIGHT RINGING,ALL CUTTERS ON NOSE CHIPPED OR BROKEN. 14:10 - 14:40 0.50 BOPSUR P PROD1 FUNCTION TEST BOPS FROM THE RIG FLOOR PANEL AND THE OPS CAB PANEL. 14:40 - 16:30 1.83 DRILL P PROD1 REMOVE BHI CABLE HEAD AND CT CONNECTOR. REMOVE QUICK TEST SUB, HYDRAULIC CUTTER WON'T MAKE UP TO IT. RIG UP HYDRAULIC CT CUTTER. CUT OFF 49 FT OF CT. 16:30 - 18:40 2.17 DRILL P PROD1 INSTALL SLB DIMPLE CONNECTOR. PULL TEST CONNECTOR AND MU CABLE HEAD. PRESSURE TEST CTC&HIGH PRESSURE FILTERS IN REEL HOUSE to 250-PSI/ 4000-PSI. GOOD TESTS. Printed 10/17/2011 1.41:50PM North America -ALASKA- BP Page 16 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:40 - 19:30 0.83 DRILL P PROD1 RU&TEST BHI DBPV TO 250-PSI/3500-PSI. HOLD AND CHART EACH TEST FOR 5-MINUTES. GOOD TESTS. RD TEST EQUIPMENT. 19:30 - 20:00 0.50 DRILL P PROD1 MU NOZZLE TO CABLE HEAD. CLOSE SWAB VALVE. STAB INJECTOR ON WELL. PRESSURE TEST LUBRICATOR TO 250-PSI/ 3500-PSI. HOLD AND CHART EACH TEST FOR 5-MINUTES. GOOD TESTS. RD TEST EQUIPMENT,OPEN SWAB VALVE AND UNSTAB INJECTOR. 20:00 - 20:30 0.50 DRILL P PROD1 HOLD PJSM WITH DETAILED DISCUSSION ABOUT DROPPED OBJECT POTENTIALS AND HAVING A FILL-IN SLB HAND. MU LATERAL DRILLING BHA#6 WITH NEW 3.75"X 4.125"HYC SRR36118B4-Z BICENTER OAL=80.34' 20:30 - 21:00 0.50 DRILL P PROD1 MU COIL TO BHA AND STAB INJECTOR ON WELL. TEST QTS TO 250-PSI/3500-PSI. HOLD AND CHART EACH TEST FOR 5-MIN. GOOD TESTS 21:00 - 00:00 3.00 DRILL P PROD1 BLOW DOWN KILL LINE. BREAK CIRCULATION AT.4-BPM WITH 900-PSI. RIH WITH BHA#6. HOLD KWT&AAR WITH RIG CREW. GOOD CREW RESPONSE. HIGHLIGHTED GOOD COMMUNICATION BETWEEN RIG TEAM AND SCS. REVIEWED INDIVIDUAL RESPONSIBILITIES. WHEN STARTING MP#1 AFTER DRILL&AAR- PUMP RATE&PRESSURE INCONSISTENT. SWAP TO MP#2 AND NO ISSUES. CONTINUE TO RIH WITH BHA#6. IA/OA=5-PSI/0-PSI. 9/17/2011 00:00 - 00:10 0.17 DRILL P PROD1 CONTINUE TO RIH WITH BHA#6. 00:10 - 00:30 0.33 DRILL P PROD1 LOG TIE IN. APPLY-8'CORRECTION. 00:30 - 01:00 0.50 DRILL P PROD1 RIG SERVICE. DRAIN MP#1 OF MUD. CLEAN MP#1 SUCTION&DISCHARGE SCREENS-SMALL AMOUNT OF LCM FOUND IN DISCHARGE. FUNCTION TEST MP#1 -NO ISSUES. 01:00 - 02:00 1.00 DRILL P PROD1 CONTINUE TO RIH WITH BHA#6. SHUT DOWN PUMP AND PASS THROUGH WINDOW WITHOUT ISSUE. RESUME PUMPING AT.95-BPM WITH 1390-PSI WHILE RIH AT 25-FPM THROUGH SHALE SECTIONS. INCREASE PUMP RATE TO 2-BPM WITH 2045-PSI AT 12,000'AND CONTINUE RIH AT 25-FPM. CLEAN TRIP. Printed 10/17/2011 1.41:50PM North America -ALASKA- BP Page 17 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:©62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 02:45 0.75 DRILL P PROD1 OBTAIN SLOW PUMP RATES AT 12540'. MP#1 -.5-BPM/1245-PSI,1-BPM/1500-PSI. MP#2-.5-BPM/1245-PSI,1-BPM/1450-PSI. FREE SPIN AT 2.7-BPM WITH 2680-PSI. SEE TWO STALLS IMMEDIATELY AFTER STARTING DRILLING at 12,580'. PU AND SEE MOTOR WORK AND NEGATIVE DHWOB WHILE POH. MAKE 150'WIPER. ATTEMPT TO DRILL AHEAD WITH 75-200-PSI MOTOR WORK AND 2-5K-LBS DHWOB FOR APPEARS WE ARE PUSHING SOMETHING AHEAD OF US(1-2K-LBS DHWOB 12550'AND BEYOND). SEE DRAG ON DHWOB SENSOR WHEN POH(NEGATIVE 2-5K-LBS). ON 3RD WIPER SEE 10K OVERPULL AT 12,530'. ATTEMPT TO RBIH AND SET DOWN IMMEDIATELY. REDUCE PUMP RATE TO 2-BPM AND PULL UP HOLE WITH SOME DRAG UNTIL—12,500'. IA/OA/PVT/ECD=5-PSI/0-PSI/325-BBLS/ . 10.7-PPG. 02:45 - 04:00 1.25 DRILL P PROD1 CONTINUE WIPER TO WINDOW AT 25-FPM. CIRCULATE AT 2.6-BPM WITH 2560-PSI. DISCUSS SITUATION WITH DAY WSL AND CTD SUPT. DECIDE TO PULL THROUGH WINDOW,OPEN EDC AND CIRCULATE BU TO ENSURE WELL IS AS CLEAN AS POSSIBLE. PUMP 15-BBL HI VIS SWEEP. IA/OA= 10-PSI/0-PSI. 04:00 - 05:00 1.00 DRILL P PROD1 DROP PUMPS AND PULL THROUGH WINDOW WITHOUT ISSUE. MAKE JOG JUST ABOVE WINDOW. PARK COIL AT 11,300',SHUT DOWN PUMPS AND OPEN EDC. CHASE SWEEP AT 3-BPM WITH 2700-PSI. RETURNS THROUGHOUT CIRCULATION ARE SANDY. SMALL INCREASE AT BOTTOMS UP, BUT NOT BEFORE SWEEP. CLOSE EDC&RIH THROUGH WINDOW WITHOUT ISSUE. IA/OA/PVT=10-PSI/0-PSI/321-BBLS. 05:00 - 06:00 1.00 DRILL P PROD1 WIPER TRIP BACK TO BOTTOM CIRCULATE AT 1-BPM WITH 1450-PSI THROUGH SHALE SECTION. INCREASE RATE TO 2.6-BPM WITH 2700-PSI. CLEAN TRIP. PUMP 37-BBL HI VIS SWEEP WHILE RIH TO SPOT AS BIT GETS TO TROUBLE SECTION AT 12,530'. IA/OA/PVT=20-PSI/5-PSI/321-BBLS. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 18 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 ' End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 06:30 0.50 DRILL P PROD1 WITH SWEEP COMING OUT OF THE BIT,RIH FROM 12,500'SLOWLYISTARTING AT 16.5-FPM) CIRCULATE AT 2.5-BPM WITH 2780-PSI. CONTINUE RECIP PIPE THROUGH PROBLEM AREA FROM 1.2530-1258.0 FT. RIH TO 12580 FT THEN PICK UP. SEE-8K ON DWOB ONCE,WITH MOTOR WORK. PUMP 2.78 BPM WHILE CLEANING HOLE,2800 PSI. RECIP CT 3X THROUGH PROBLEM AREA, HOLE IS CLEAN ON LAST TRIP. 06:30 - 07:20 0.83 DRILL P PROD1 DRILL FROM 12578 FT. VERY LOW ROP, WORK CT TO TRY AND GET STARTED. NOTHING SEEN ON BOTTOMS UP HI-VIS SWEEP. DRILLING AROUND 10 FT/HR WITH 4K DWOB, NOT MUCH MOTOR WORK. 07:20 - 07:30 0.17 DRILL P ' PROD1 WATERY FLUID IS SEEN IN THE POSSUM BELLY, DARK COLOR. PICK UP OFF BOTTOM AND FLOW CHECK, NO FLOW. FLUID SAMPLE IS CAPTURED AND WEIGHED, 8.3 PPG. 07:30 - 08:15 0.75 DRILL P PROD1 CONTINUE DRILLING FROM 12583 FT. CONFIRM WITH C-PAD OPERATOR NO— NEARBY ONEARBY INJECTORS HAVE BEEN TURNED ON. ROP IS 0-10 FT/HR WITH 4-5K DWOB. ECD=10.56 PPG AT 2.7 BPM. PVT=363 BBLS. 08:15 - 09:30 1.25 DRILL P PROD1 ANOTHER SLUG OF DARK FLUID IS SEEN IN POSSOM BELLY. OUT MUD DENSITY IS REDUCED FROM 9.1 TO 8.9 PPG BRIEFLY,THEN COMES BACK UP. PICK UP AND FLOW CHECK,NO FLOW. PULL UP THROUGH WINDOW AND CIRC B/U. CONTINUE TROUBLESHOOTING RIG PLUMBING TO FIND OUT WHERE DARK FLUID IN POSSUM BELLY IS COMING FROM,AND WHY OUT MM FLUID DENSITY DROPPED BRIEFLY. INVESTIGATE ALL PLUMBING AND RIG SUMPS, FIND A SUMP ON THE RIG FLOOR THAT IS DUMPING DARK FLUID THROUGH THE OLD RIG FLOWLINE INTO THE POSSUM BELLY. OUT MM DENSITY CHANGE WAS AN UNRELATED EVENT,CAUSED BY PUMPING CONTENTS OF PIT#1 DIRECTLY DOWNHOLE. PIT#1 HAD A HI-VIS SWEEP IN IT THAT HAD GOTTEN SOME STANDING WATER ON TOP FROM HOSING THE SHAKER AREA OFF. 09:30 - 10:30 1.00 DRILL P PROD1 PUMP 1 B/U AT 4 BPM TO CONFIRM THIS SCENARIO. NOTHING UNUSUAL SEEN AFTER 1 B/U. CLOSE EDC AND RIH. 10:30 - 11:10 0.67 DRILL P PROD1 SLIGHT CIRC PRESSURE INCREASE AT 11920 FT SHALE. PICK UP AND GO THROUGH AT 1.4 BPM FLOW RATE. STACK WT AT 12440 FT AND POP THROUGH. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 19 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292037100 ActiveDatum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:10 - 13:20 2.17 DRILL P PROD1 DRILL FROM 12582 FT. PVT=350 BBLS. 2.66/2.67 BPM @ 2800 PSI. ROP IS 0-10 FT/HR WITH 4-5K DWOB. 13:20 - 15:30 2.17 DRILL P PROD1 DRILL TO 12596 FT. PICK UP AND RE-ZERO DWOB,GET NEW PARAMETERS. 15:30 - 23:30 8.00 DRILL P PROD1 CONTINUE DRILLING FROM 12613 FT. CONTINUED LOW ROPS. 2.64/2.65 BPM @ 2850 PSI AND 2.6-BPM WITH 2525-PSI. MOTOR WORK WITH 50 TO 200-PSI DIFFERENTIAL. KEEPING DHWOB BETWEEN 750 AND 2K-LBS TO AVOID STALLING AS ROP SLOWLY INCREASES PAST 12,640'. SEE STALLS AT 12,635',X2 AT 12,650',12,661', 12,671',12,683',12,698'. STALLS CORRELATE TO INCREASED DHWOB. GEO DIRECTS DD TO BUILD ANGLE UP TO STEER UP TO 8954'TVD TO GET OUT OF SHALE. IA/OA/PVT/ECD=300-PSI/215-PSI/ 340-BBLS/10.7-PPG. 23:30 - 00:00 0.50 DRILL P PROD1 WIPER TRIP FROM 12,700'AT 25-FPM. CIRCULATE AT 2.65-BPM WITH 2650-PSI. IA/OA/PVT/ECD=350-PSI/250-PSI/ 334-BBLS/10.71-PPG. 9/18/2011 00:00 - 00:40 0.67 DRILL P PROD1 WIPER TRIP FROM 12,700'AT 20 TO 25-FPM. CIRCULATE AT 2.65-BPM WITH 2650-PSI. SEE SLIGHT OVERPULLS IN ALL SHALE SECTIONS. IA/OA=350-PSI/260-PSI. 00:40 - 01:40 1.00 DRILL P PROD1 TIE IN TO RA TAG&APPLY+11' CORRECTION. WIPER FROM WINDOW BACK TO 12,700'. CIRCULATE AT 1-BPM WITH 1600-PSI THROUGH UPPER SHALE SECTIONS. SET DOWN 5K-LBS AT 11,880'. PU AND DROP PUMPS TO.5-BPM WITH 1360-PSI AND CONTINUE RIH WITHOUT ISSUE. INCREASE RATE TO 2-BPM WITH 2200-PSI. NO ISSUES FOR REST OF TRIP. IA/OA=295-PSI/245-PSI. 01:40 - 03:15 1.58 DRILL P PROD1 DRILL AHEAD FROM 12,700'TO 12,719' FREE SPIN AT 2.6-BPM WITH 2650-PSI. VERY CHALLENGING TO DRILL AHEAD. VERY LOW ROP WITH FREQUENT STALLS. ONLY ABLE TO DRILL BY KEEPING DHWOB BELOW 1.5K-LBS. PUMP 15-BBL HI VIS SWEEP.NO INCREASE IN SANDY CUTTINGS. IA/OA/PVT=300-PSI/240-PSI/331-BBLS. 03:15 - 04:15 1.00 DRILL P PROD1 POH FOR NEW BIT AND MOTOR. CIRCULATE AT 2.6-BPM WITH 2645-PSI. SEE 10K-LB OVERPULL AT 12,530',BUT COMES FREE. NO ISSUES SEEN THROUGH ANY SHALE SECTION. DROP PUMP RATE AND PULL THROUGH WINDOW WITHOUT ISSUE. IA/OA/PVT=350-PSI/260-PSI/328-BBLS, Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 20 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type. RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:15 - 06:00 1.75 DRILL P PROD1 OPEN EDC AND FLOW CHECK WELL-NO FLOW. ESTABLISH CIRCULATION AT 3.4-BPM WITH 2900-PSI. POH AT 65-FPM. IA/OA=320-PSI/260-PSI. 06:00 - 07:00 1.00 DRILL P PROD1 CONTINUE PULLING OUT OF HOLE. 07:00 - 07:30 0.50 DRILL P PROD1 TAG STRIPPER AND FLOW CHECK WELL. TRIP SHEET IS-6 BBLS FOR THE TRIP. PJSM FOR CHANGING OUT BHA. 07:30 - 08:40 1.17 DRILL P PROD1 M/U BHA#7-NEW HCC 5 BLADE BI-CENTER, 2-7/8"XTREME,3"COILTRAK WITH RES. BHA OAL=79.01 FT. PRESSURE TEST QTS TO 650/3500 PSI FOR 5 MIN,GOOD. 08:40 - 11:00 2.33 DRILL P PROD1 RIH BHA#7. TIE IN DEPTH FROM 11160 FT. CORRECT-8 FT. 11:00 - 12:10 1.17 DRILL P PROD1 PASS THROUGH WINDOW AT 9OR TF. RIH, REDUCE PUMP THROUGH 11940 FT SHALE. GET SLOW PUMP PRESSURES OFF BOTTOM. 12:10 - 12:50 0.67 DRILL P PROD1 DRILL FROM 12718 FT. INITIAL ROP IS 30 FT/HR WITH 1 K DWOB. GRADUALLY INCREASE ROP TO 120 FT/HR WITH 1.8K DWOB. REDUCE INCLINATION TO GET TO 8958 FT TVD. 12:50 - 13:35 0.75 DRILL P PROD1 DRILL TO 12770 FT. PICK UP TO GET SURVEYS AT 12738 AND 12768 FT. GETTING SEVERE VIBRATION WHILE DRILLING. DRILL TO 12850 FT. 13:35 - 15:40 2.08 DRILL P PROD1 WIPER TRIP FROM 12850 FT TO WINDOW. SLIGHT OVERPULLS SEEN AROUND 12640 FT. MOTOR STALL WITH OVERPULL AT 12538 FT, TRY TO RUN BACK IN AND CAN'T. PICK UP AGAIN,WORK PIPE AND PUMP AND PULL FREE AT-5K DWOB. CONTINUE WIPER TRIP. SEE OVERPULLS AND MOTOR WORK WHEN DRAGGING BIT THROUGH 11890-11950 FT SHALE ZONE. OVERPULL WITH MOTOR WORK AT 11650 FT. RUN BACK DOWN THROUGH 11890-11950 FT AT FULL PUMP RATE,SOME STACKING AND POP THROUGH. 15:40 - 16:50 1.17 DRILL P PROD1 DRILL FROM 12850 FT.TO 12,895'. SOME WEIGHT STACKING GETTING STARTED. FREE SPIN AT 2.5-BPM WITH 2775-PSI. IA/OA/PVT=260-PSI/170-PSI/311-BBLS. _ 16:50 - 17:50 1.00 DRILL P PROD1 DIFFERENTIALLY STUCK AT 12,895'BIT DEPTH. ABLE TO CIRCULATE FREELY AND ORIENT WITHOUT ISSUE. WORK COIL UP TO 70K-LBS(X3)WITHOUT SUCCESS. CBU. Printed 10/17/2011 1.41:50PM North America -ALASKA- BP Page 21 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site: PB C Pad • Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:50 - 19:15 1.42 DRILL P PROD1 ALLOW WELL TO RELAX FOR 10-MINUTES. WORK COIL UP TO 80K-LBS(X5)WITHOUT SUCCESS. ORDER 50-BBLS MINERAL OIL FROM MI. BREAK CIRCULATION AT 1-BPM WITH 1680-PSI-STILL ABLE TO CIRCULATE WITHOUT ISSUE. SHUT DOWN PUMP AND ALLOW WELL TO RELAX FOR 35-MIN. WORK PIPE TO 80K-LBS(X3)WITHOUT SUCCESS. 19:15 - 20:30 1.25 DRILL P PROD1 CIRCULATE AT 1-BPM WITH 1680-PSI WHILE WAITING FOR MINERAL OIL. TAKE SPRS: MP#1 -.5-BPM/1425-PSI, 1-BPM/1650-PSI,2.5-BPM/2730-PSI. MP#2- .5-BPM/1440, 1-BPM/1670-PSI, 2.5-BPM/2700-PSI. REVIEW PLAN FORWARD WITH CTD FIELD SUPT,CTD WTL&ODE. HOLD PJSM ON PUMPING OPERATIONS WITH RIG CREW. DISCUSS WELL CONTROL CONSIDERATIONS,RESTRICTING ACCESS TO THE RIG FLOOR AND SEQUENCE OF EVENTS. 20:30 - 21:45 1.25 DRILL P PROD1 HOOK MINERAL OIL TRUCK TO RIG. PUMP 20-BBLS OF 7.0-PPG MINERAL OIL AT 2.5-BPM. SPOT 10-BBLS MINERAL OIL IN OPEN HOLE. ALLOW MINERAL OIL TO SOAK FOR 30-MINUTES. PULL ONE TIME TO 60K-LBS AND COIL PULLS FREE. 21:45 - 23:20 1.58 DRILL P PROD1 WIPER TRIP FROM 12,895'. DUMP ALL MINERAL OIE RETURNS. CIRCULATE AT 2.5-BPM WTIH 2500-PSI INITIALLY. SEE 2X 10K-LB OVERPULLS AT 12,580. CONTINUE WIPER. SHALE FROM 11,955'TQ 11,880'ACTING UP. SEE OVERPULLING -WITHOUT MOTOR WORK INDICATING CTC HANGING UP AT 11,890'. WORK PIPE& REDUCE PUMP RATE,ABLE TO WORK FREE. CONTINUE WIPER TRIP. SEE MOTOR WORK &OVERPULLING WHEN BIT PASSES SAME DEPTH. REDUCE PUMP RATE TO.5-BPM& ABLE TO PASS. CONTINUE WIPER TRIP AT 25-FPM, CIRCULATING AT 2.5-BPM WITH 2700-PSI. SEE 5K-LB OVERPULL AND MOTOR WORK AT 11,509'. DROP DOWN AND PULL PAST WITHOUT ISSUE. IA/OA=135-PSI/70-PSI. 23:20 - 23:30 0.17 DRILL P PROD1 TIE IN TO RA TAG. APPLY+11'CORRECTION. 23:30 - 00:00 0.50 DRILL P PROD1 WIPER TRIP FROM WIND O 1. CIRCULATE AT 1.1-BPM WITH 1690-PSI. NO ISSUES THROUGH 11,520'-11,550'AND 11,620'-11,670'SHALE SECTIONS. IA/OA/PVT=135-PSI/75-PSI/265-BBLS. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 22 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum: C-10A:@62.32ft(above Mean Sea Level) Date ' From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/19/2011 00:00 - 01:00 1.00 DRILL P PROD1 WIPER TRIP FROM WIND OW. • CIRCULATE AT 1.1-BPM WITH 1690-PSI. SEE MOTOR WORK WITH NO WT SET DOWN AT 11,912'AND 11,935'. SEE MOTOR WORK AND 5K-LB SET DOWN AT 11,942'-POP THROUGH. RIH TO 12,100'. INCREASE PUMP RATE TO 2.4-BPM WITH 2640-PSI. WIPE BACK FROM 12,100'TO 11,800'. SEE SLIGHT OVERPULLS AT 11,998',11,980', 11,976'AND 11,966'. STALL AT 11,900'. DROP DOWN,REDUCE PUMP TO 1.5-BPM WITH 2000-PSI AND WIPE BACK PAST WITH MOTOR WORK AND SLIGHT OVERPULL AT 11,904', 11,893'AND 11,864'. WIPE FROM 11,800'. SET DOWN 5K-LBS AT 11,904' PU, REDUCE PUMP TO.8-BPM/ 1600-PSI AND RUN PAST WITHOUT ISSUE. SET DOWN 5K-LBS AT 11,932'. PU REDUCE ' RATE TO.5-BPM/1400-PSI AND RIH PAST SLOWLY. AT 12,025',RESUME WIPING AT 25-FPM WHILE CIRCULATING AT 2.1-BPM WITH 2400-PSI. SET DOWN 5K-LBS WITH SLIGHT MOTOR WORK AT 11,542'. PU AND REDUCE PUMP RATE. ABLE TO PASS WITHOUT ISSUE. RESUME PUMPING AT 2.1-BPM AND WIPING AT 25-FPM. NO FURTHER ISSUES. MUSHY CLAY RETURNS SEEN DURING . WIPER TRIP. IA/OA=125-PSI/70-PSI. 01:00 - 05:00 4.00 DRILL P PROD1 _DRILL AHEAD FROM 12,895' FREE SPIN AT 2.6-BPM WITH 2960-PSI. DRILL AHEAD WITH GOOD ROP,250-500-PSI MOTOR WORK AND 1.8-3K-LBS DHWOB. BHA WIPER AT 12,930'AND 13,036'. SANDY CUTTINGS ACROSS SHAKER. PERIODIC STALLING INCREASING TOWARDS END OF SECTION. SAMPLES SHOW SANDY FORMATION. BEGIN PREPPING FOR MUD SWAP. IA/OA/PVT/ECD=320-PSI/200-PSI/ 269-BBLS/10.9-PPG. 05:00 - 06:00 1.00 DRILL P PROD1 WIPER TRIP FROM 13,050_AT 22-FPM. CIRCULATE AT 2.5-BPM WITH 2800-PSI. SLIGHT OVERPULL&MOTOR WORK AT 12,580'&12,560'. 15K-LB OVERPULL WITH NO MOTOR WORK AT 11,975'. SLIGHT OVERPULL&SLIGHT MOTOR WORK AT 11,890'. 5K-LB OVERPULL&SLIGHT MOTOR WORK AT 11,645'. IA/OA/ECD=335-PSI/205-PSI/10.9-PPG. I Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 23 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time: 7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 10:30 4.50 DRILL P PROD1 CONTINUE DRILLING FROM 1310.0 FT. START MUD SWAP. ROP IS 70 FT/HR WITH 1.9K DWOB 2.50/2.51 BPM @ 2400-2800 PSI. CONTINUE HOLDING 89-90 DEG INC FOR NOW. DIFFERENTIAL STICKING AND SLIDING PROBLEMS. 60K OVERPULLS COMING OFF BOTTOM. DRILL TO 13200 FT. 10:30 - 13:00 2.50 DRILL P PROD1 WIPER TRIP FROM 13200 FT TO WINDOW. OVERPULL WITH MOTOR WORK AT 12600, 11890 FT. STACK OUT AT 12600 FT,PICK UP AND WORK THROUGH. 13:00 - 15:30 2.50 DRILL P PROD1 DRILL FROM 13200 FT. ROP IS AROUND 100 FT/HR WITH 1-2K DWOB. SOME DIFFERENTIAL STICKING PROBLEMS WHEN PICKING UP. DRILL TO 13350 FT. 15:30 - 19:30 4.00 DRILL P PROD1 jNIPER TRIP FROM 13350 FT TO WINDOW. PULL THROUGH WINDOW. OPEN EDC AND CBU. CLOSE EDC. TIE IN&APPLY+11'CORRECTION WIPER TRIP FROM WINDOW TO 13,353'. MUCH CLEANER TRIP-ONLY HAD TO REDUCE PUMP RATE THROUGH 12,550'TO 12,650'SHALE SECTION. 19:30 - 22:00 2.50 DRILL , P PROD1 DRILL AHEAD FROM 13,353'. FREE SPIN AT 2.6-BPM WITH 2475-PSI. DRILL AHEAD WITH 250-600-PSI MOTOR WORK AND 1 -3K-LBS DHWOB. STEADY,GOOD ROP. 13,400'&13,450'SAMPLES SHOW 20%&30% CHERT. IA/OA/PVT/ECD=280-PSI/210-PSI/ 343-BBLS/10.7-PPG. 22:00 - 23:15 1.25 DRILL P PROD1 WIPER TRIP FROM 13,50Q'TO WINDOW_AT 25-FPM. CIRCULATE AT 2.6-BPM WITH 2590-PSI. SEE 10K-OVERPULL&SLIGHT MOTOR WORK AT 11919'. REDUCE PUMP RATE AND ABLE TO PULL PAST. RESUME PUMPING AT FULL RATE. SEE SLIGHT OVERPULL&MOTOR WORK AT 11,620'. IA/OA/PVT/ECD=400-PSI/280-PSI/ 343-BBLS/10.9-PPG. 23:15 - 00:00 0.75 DRILL P PROD1 WIPER TRIP FROM WINDOW TO 13,500'AT 25-FPM. CIRCULATE AT 2.4-BPM WITH 2390-PSI. IA/OA/ECD=410-PSI/310-PSI/10.9-PPG. 9/20/2011 00:00 - 00:40 0.67 DRILL P PROD1 FINISH WIPER TRIP FROM WINDOW TO 13,500'AT 25-FPM. CIRCULATE AT 2.4-BPM WITH 2390-PSI. SET DOWN AT 11,650'. PU, REDUCE PUMP RATE AND ABLE TO PASS WITHOUT ISSUE. SEE SLIGHT MOTOR WORK AND SLIGHT WEIGHT STACKING AT 11,880'BUT ABLE TO PASS WITHOUT REDUCING PUMP RATE. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 24 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:40 - 06:15 5.58 DRILL P PROD1 DRILL AHEAD FROM 13,500'TO 13,650' FREE SPIN AT 2.5-BPM WITH 2600-PSI. DRILL AHEAD WITH 300-500-PSI MOTOR WORK AND 1-3K-LBS DHWOB. MAKE BHA WIPER AT 13,548'. ROP SLOWS BETWEEN 13,520'AND 13,555'. MOTOR WORK AT 100-200-PSI MOTOR WORK AND 3-5K-LBS DHWOB. 13,550'SAMPLE SHOWS LARGE AMOUNT OF CHERT. HIGHER ROP WITH INITIAL DRILLING PARAMETERS RESUMES AFTER 13,555'. HOLD INCLINATION AT 90-DEG. ROP SLOWS AGAIN AT 13,620'WITH 200- 300-PSI MOTOR WORK AND 2-4K-LBS DHWOB. IA&OA PRESSURES INCREASING STEADILY AS WELL AS DH TEMPERATURE(160-DEG F) AND RETURN TEMPERATURE(103-DEG F). IA/OA/PVT/ECD=580-PSI/420-PSI/ 333-BBLS/10.9-PPG. 06:15 - 09:15 3.00 DRILL --PPROD1 WIPER TRIP FROM 13,65.0'. CIRCULATE AT 2.6-BPM WITH 2600-PSI. IA/OA=600-PSI/445-PSI. 09:15 - 11:00 1.75 DRILL P PROD1 DRILL FROM 13650 FT. SLOW ROP INITIALLY, 10-20 FT/HR WITH 3-4K DWOB. 2.55/2.51 BPM @ 2500-2900 PSI. 13600 FT SAMPLE IS 30%CHERT. 11:00 - 12:40 1.67 DRILL P PROD1 CONTINUED SLOW ROP. DRILLING AT 13665 El. 12:40 - 15:00 2.33 DRILL P PROD1 DRILL ZONE 1B AT 13680 FT. ROP AROUND 10 FT/HR WITH 3.7K DWOB. 15:00 - 16:50 1.83 DRILL N WAIT` PROD1 DRILL TO 13709 FT. PICK UP SLOWLY TO GIVE TOWN GEO TIME FOR DATA INTERPRETATION. 16:50 - 18:50 2.00 DRILL P PROD1 ON BOTTOM DRILLING TO 13725' TAKE ON 100 BBLS OF NEW 9.2 PPG POWER VIS MUD. PVT=339 BBLS. 18:50 - 21:00 2.17 DRILL P PROD1 CREW CHANGE OUT.DISCUSS ON-GOING OPERATIONS. MAKE EQUIPMENT CHECKS. CONTINUE DRILLING AHEAD FROM 13725'. DHWOB=3.7-4K. ROP=25 FPH. F/S 2.6 BPM.MOTOR WORK 300-400 PSI. IN/OUT=9.2 PPG. WHP=66 PSI, VA=7 PSI,O/A=132 PSI,PVT= 338 BBLS. DRILL TO 13767'. 1 MOTOR STALL AT 13767'DIFFICULT WT.TO BIT TRANSFER 21:00 - 23:40 2.67 DRILL P PROD1 WIPER TO WINDOW AT 11350'. 19K OVER PULL AT 13610', NO MOTOR WORK. PU INTO 4.5"TBG AT 11300' OPEN EDC, PUMP 3.3 BPM @ 2670 PSI. POH 20 FPM TO 11000'CBU CLEANING OUT 4.5"TBG. 23:40 - 00:00 0.33 DRILL P PROD1 RIH TO 11140' LOG TIE IN. 9/21/2011 00:00 - 00:10 0.17 DRILL P PROD1 LOG TIE IN AT 11140',+14'CORRECTION Printed 10/17/2011 1:41:50PM North America -ALASKA - BP Page 25 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:10 - 00:30 0.33 DRILL P PROD1 RIH PUMPING 2.3 BPM 2500 PSI 11710'-PINHOLE IN COIL AT REELHOUSE. SHUT DOWN PUMP.NOTIFY FIELD SUPERINTENDANT. ATTEMPT TO DETERMINE EXACT PINHOLE LOCATION. 00:30 - 01:10 0.67 DRILL N SFAL 11,710.00 PROD1 LINE UP AND FILL HOLE FROM BACKSIDE- HOLDING 120 PSI BACK PRESSURE WITH CHOKE. POH FOR PINHOLE ABOVE WINDOW© 11300'INTO 4.5 TBG. PVT=319 BBLS. 01:10 - 01:20 0.17 DRILL N SFAL 11,710.00 PROD1 FLOW CHECK WELL-STATIC. 01:20 - 03:45 2.42 DRILL N SFAL 11,710.00 PROD1 POH-FILL FROM BACKSIDE- HOLDING 120 PSI BACK PRESSURE WITH CHOKE. HELD AAR FOR PINHOLE RESPONSE. GOOD RESPONSE BY CREW-NO SPILL- SLIGHT SPRAY ON REEL. COULD NOT IDENTIFY WHERE PIN HOLE WAS LOCATED. PJSM FOR BHA. 03:45 - 03:55 0.17 DRILL N SFAL 11,710.00 PROD1 TAG SURFACE. FLOW CHECK WELL-STATIC. 03:55 - 04:30 0.58 DRILL N SFAL 11,710.00 PROD1 SET BACK INJECTOR,INSPECT AND UD BHA #7.CLOSE SWAB VALVE. BITGRADE=3/2/RO/N/X/I/CT/DSF 04:30 - 07:00 2.50 DRILL N SFAL 11,710.00, PROD1 PJSM-M/U NOZZLE,STAB INJECTOR. DISPLACE COIL WITH WATER AND 5 BBLS METHANOL. 07:00 - 07:30 0.50 DRILL. N SFAL 11,710.00 PROD1 PJSM FOR PUMPING N2. 07:30 - 09:00 1.50 DRILL N SFAL 11,710.00 PROD1 PURGE REEL WITH N2 AND ALLOW IT TO BLEED OFF. REMOVE BHI CABLE HEAD AND CT CONNECTOR. 09:00 - 11:30 2.50 DRILL N SFAL 11,710.00 PROD1 ATTACH GRAPPLE TO END OF CT AND PULL TEST. PJSM THEN PULL CT ACROSS PIPE SHED ROOF BACK TO REEL. WHILE PULLING CT BACK THE CABLE JUMPS OFF THE END OF THE GOOSENECK. CONDUCT PJSM THEN SEND A PERSON UP TO POSITION IT BACK ONTO THE GOOSENECK. SECURE THE CT TO THE SHIPPING REEL. FILL WELL WITH 3 BBLS. 11:30 - 14:00 2.50 DRILL N SFAL 11,710.00 PROD1 PJSM AND REMOVE 1502 IRON FROM INSIDE THE REEL. REMOVE PRESSURE BULKHEAD. REMOVE STRIPPER AND SET INJECTOR DOWN ON RIG FLOOR. 13:15-FILL WELL WITH 3.5 BBLS. 14:00 - 15:30 1.50 DRILL N SFAL 11,710.00 PROD1 PJSM FOR LOWERING OLD REEL DOWN ONTO TRUCK AND PICKING UP NEW ONE. LOWER OLD REEL ONTO TRUCK,PICK UP NEW ONE. 15:30 - 17:00 1.50 DRILL P PROD1 GREASE CREW ARRIVES,PJSM AND PREP TO GREASE TREE VALVES. GREASE TREE VALVES,SWAB AND MASTER VALVE. Printed 10/17/2011 1:41:50PM North America -ALASKA - BP Page 26 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 18:30 1.50 BOPSUB P PROD1 CREW CHANGE,DISCUSS ONGOING RIG OPS,CHECK EQUIPMENT STATUS. PJSM FOR RAM INSPECTION.TEST MASTER AND SWAB VALVES. PRESUURE TEST TO 250/3500 PSI FOR 5 MIN EACH. INSTALL REEL IRON AND BULK HEAD. 18:30 - 21:00 2.50 BOPSUB P PROD1 NOTIFY AOGCC OF TEST TIME STATUS at , 20:00 OPEN RAM DOORS ON BOPE- REMOVE AND INSPECT BOP RAMS AND CAVITIES. C/O 2 3/8"X 3 1/2"VARIABLE RAM PACKER AND TOP SEAL. RE-INSTALL RAMS,M/U BOP RAM DOORS. 21:00 - 23:30 2.50 BOPSUB P PROD1 FILL STACK WITH WATER,PURGE AIR FROM ALL LINES. PERFORM BOP SHELL TEST. UPDATE AOGCC OF TEST TIME STATUS @ 21:30 PRESSURE TEST TO 250/3500 PSI FOR 5 MIN EACH. 23:30 - 00:00 0.50 BOPSUB P PROD1 TEST BOPE.TEST WITNESSED BY AOGCC. 9/22/2011 00:00 - 07:00 7.00 BOPSUR P PROD1 TEST BOPE.AOGCC WITNESS BOPE TEST. M/U JUNCTION BOX AND GRAPPLE ON COIL. TEST BLIND SHEAR RAMS, UPPER AND LOWER 23/8"COMBI RAMS, 2 3/8 X 3 1/2"VBR RAMS,14 CHOKE MANIFOLD VALVES, MANUAL AND HYD KILL VALVES,HCR,3 1/8" MANUAL VALVE, 2 FULL OPENING FLOOR SAFETY VALVES TO 250/3500 PSI- 5 MIN EACH.TEST ANNULAR TO 250/2500 PSI FOR 5 MIN EACH. PERFORM ACCUMULATOR DRAWDOWN TEST. TEST I-12S AND LEL ALARMS.METHANE ALARM IN CELLAR FAILED TEST. 07:00 - 08:30 1.50 DRILL N SFAL PROD1 ASSEMBLE STRIPPER,PREP TO PULL CT ACROSS. 08:30 - 09:00 0.50 DRILL N SFAL PROD1 HIGH LEVEL H2S EXERCISE WITH RIG EVACUATION. ALL PERSONNEL MUSTER IN THE CORRECT AREA AND ARE ACCOUNTED FOR. CONDUCT AAR FOR THE EVACUATION EXERCISE. 09:00 - 10:00 1.00 DRILL N SFAL PROD1 INSTALL GRAPPLE IN CT AND PULL TEST. PULL CT ACROSS PIPE SHED ROOF AND INTO INJECTOR. CUT OFF CT GRAPPLE. 10:00 - 12:00 2.00 DRILL N SFAL PROD1 ELECTRIC TEST OF CABLE IS GOOD. INSTALL CT CONNECTOR AND PULL TEST. INSTALL BHI CABLE HEAD AND TEST,GOOD. 12:00 - 15:00 3.00 DRILL N SFAL PROD1 FILL COIL FORWARDS. PT CONNECTOR AND PRESSURE BULKHEAD, GOOD. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 27 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292037100 ' Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:00 - 18:00 3.00 DRILL N RREP PROD1 LOOSEN IN MM CONNECTION AND INSPECT, WAS GIVING FALSE READINGS. SNAKE THE MM WITH A PIECE OF ELINE CABLE AND REASSEMBLE. PUMP 1 REEL VOLUME. REVERSE CIRC 4 BBLS THEN TRAP 1500 PSI IN MICROMOTION AND TROUBLESHOOT AS PER OEM. 18:00 - 20:30 2.50 DRILL N RREP PROD1 CREW CHANGE, DISCUSS RIG OPS.CHECK RIG EQUIPMENT. REMOVE IN MICRO MOTION AND SENSOR INSTALL NEW IN MICRO MOTION AND SENSOR. TEST IN MICRO MOTION PUMPING.25 BPM,.5 BPM,.75 BPM. 1 BPM,1.25 BPM,1.5 BPM,1.75 BPM,2 BPM, 2.25 BPM,2.5 BPM,3 BPM. TEST PUMP TRIP.BOTH MICRO MOTIONS OPERATING CORRECTLY. 20:30 - 22:00 1.50 DRILL N SFAL PROD1 PJSM-R/U AND REVERSE CIRCULATE. PRESSURE UP AND TEST INNER REEL VALVE- PACKOFF AND BULKHEAD TO 250/3500 PSI FOR 5 MIN EACH. TEST IN MICRO MOTION AND HARDLINE TO 250/4500 PSI 5 MIN EACH. BLOW DOWN KILL LINE. 22:00 - 22:30 0.50 DRILL N SFAL PROD1 PJSM FOR BHA,OPEN SWAB VALVE-2 BBLS TO FILL HOLE. UNSTAB INJECTOR, L/D NOZZLE. M/U BHA#8=3.75 X 4.125 BI-CENTER BIT, X-TREME MTR,AGITATOR, FVS, HOT, DGS, DPS,EDC,PC,SWP,LQC,UQC W/BLANKS, XO,CTC.AKO= 1.1 M/U INJECTOR. 22:30 - 23:45 1.25 DRILL N SFAL PROD1 PRESSURE TEST QTS TO 250/3500 PSI 5 MIN EACH. TEST AGITATOR. 23:45 - 00:00 0.25 DRILL N SFAL PROD1 RIH WITH BHA#8 9/23/2011 00:00 - 02:05 2.08 DRILL N SFAL PROD1 RIH WITH BHA#8 TO 11150' 02:05 - 02:35 0.50 DRILL N SFAL PROD1 LOG TIE IN AT 11150', CORRECTION-15' 02:35 - 03:00 0.42 DRILL N SFAL PROD1 RIH 29 FPM PUMPING 1 BPM 1800 PSI. 03:00 - 04:00 1.00 DRILL P PROD1 11710'BACK ON PLANNED OPERATIONS @ 03:00 CONTINUE RIH 30 FPM PUMPING 1 BPM 1800 PSI. TAG BOTTOM @ 13768',CLEAN RIH TO BOTTOM. PVT=338 BBLS. 04:00 - 04:20 0.33 DRILL P PROD1 RECORD SPR FOR 1 AND 2 MP. PUMP 20 BBL HI VIS SWEEP. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 28 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: 500292037100 Active Datum: C-10A: @62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:20 - 07:00 2.67 DRILL P PROD1 ON BOTTOM DRILLING AHEAD FROM 13768' DHWOB=3K. ROP=40-50 FPH. F/S 2.5 BPM@ 3525 PSI.MOTOR WORK 300 PSI. IN/OUT=9.2 PPG. ECD=10.96 PPG. WHP=73 PSI, VA=4 PSI, O/A=0 PSI,PVT=338 BBLS. DRILLING AT 13811'@ 05:00 WITH SWEEP RETURNS AT SHAKER- LOADED WITH SAND. PUMP ANOTHER 20 BBL HI VIS SWEEP TO CLEAN UP HOLE. 07:00 - 08:00 1.00 DRILL P PROD1 CONTINUE DRILLING PAST 13850 FT. HOLD 89-90 DEG FOR THE REMAINDER OF THE WELL. DRILL TO 13900 FT. 08:00 - 12:00 4.00 DRILL P PROD1 WIPER TRIP FROM 13900 FT TO WINDOW._ ADD AROUND 10 BBLS FRESH WATER SLOWLY TO MUD SYSTEM TO THIN IT OUT. STACKING IN SHALE AT 12580 FT ON THE WAY DOWN,AT 1.5 BPM. CONFIRM AS DRILLED TF,TRY TO RUN PAST AT HIGHER SPEED AND LOWER FLOW RATE. TURN TF UP SLIGHTLY FROM AS DRILLED, RIH AND STACK WT, POP THROUGH. STACKING AT 12620 FT, OTHER END OF THE SAME SHALE ZONE. 12:00 - 12:50 0.83 DRILL P PROD1 DRILL FROM 13900 FT TO TD OF 13965 FT. APPEARS TO BE CLEAN SAND AT TD. 12:50 - 15:00 2.17 DRILL P PROD1 PUMP 20 BBL VISCOUS SWEEP AROUND AT TD THEN PULL LONG WIPER TO WINDOW. SLIGHT OVERPULL THROUGH MOST OF THE SHALE ZONES. 15:00 - 18:00 3.00 DRILL P PROD1 RUN BACK TO BOTTOM FOR ANOTHER WIPER TRIP. 18:00 - 18:15 0.25 DRILL P PROD1 CREW CHANGE, DISCUSS RIG OPS,CHECK RIG EQUIPMENT. RIH TO 11330' 18:15 - 18:25 0.17 DRILL P PROD1 LOG_TIE IN @ 11330'+ 11'CORRECTION. 18:25 - 20:40 2.25 DRILL P PROD1 CONTINUE WIPER BACK TO BOTTOM. RIH 28 FPM, PUMPING 2.5 BPM,3800 PSI. STACK WT AT 12585', P/U TO 12550' REDUCE PUMP RATE TO 1 BPM 2000 PSI. RIH,TAG UP AT 12585', INCREASE PUMP TO 2.25 BPM 3400 PSI. P/U TO 12480', RIH PUMPING 1.5 BPM 2450 PSI. WORK THROUGH SHALES FROM 12580'TO 12600' BYPASS HIGH PRESSURE SCREENS- PUMP 40 BBL 9.2 PPG CLEAN LINER PILL WITH TORQLESS BEADS- PUMPING 2.5 BPM 3700 PSI. TAG TD 2 TIMES @ 13970'CORRECTED DEPTH. 20:40 - 22:00 1.33 DRILL P PROD1 DISPLACE, POH LAYING IN LINER PILL. PVT=408 BBLS. I/A= 11 PSI.O/A=26 PSI. POH ABOVE WINDOW AT 11300', CLEAN TO WINDOW. Printed 10/17/2011 1:41.50PM North America -ALASKA- BP Page 29 of 30 Operation Summary Report Common Well Name: C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 22:10 0.17 DRILL P PROD1 FLOW CHECK WELL-STATIC. LINE UP TO CIRCULATE THROUGH HI PRESSURE SCREENS. PVT=388 BBLS. 22:10 - 23:00 0.83 DRILL P PROD1 CBU PUMPING 2.7 BPM 4000 PSI.POH 5 FPM- CLEANING UP WELLBORE.CLEAN AT SHAKER W/BU RETURNS. WHP=80 PSI. 23:00 - 00:00 1.00 DRILL P PROD1 ROH-PUMPING 2.7 BPM 3950 PSI. PAINT YELLOW EOP FLAG @ 10600' PAINT FLOURECENT ORANGE EOP FLAG @ 7900' POH 9/24/2011 00:00 - 01:30 1.50 DRILL P PROD1 POH WITH BHA#8 FOR COMPLETION. PUMPING 2.67 BPM 3750 PSI. PJSM FOR HANDLING BHA. 01:30 - 01:40 0.17 DRILL P PROD1 FLOW CHECK WELL-STATIC. 01:40 - 02:30 0.83 DRILL P PROD1 SET BACK INJECTOR. LID AND INSPECT BHA#8 BI-CENTER BIT GRADE= 1/2/CT/G/X/I/NO/TD 02:30 - 05:15 2.75 EVAL P RUNPRD PJSM-REMOVE BAKER CT HEAD. PUMP SLACK FOWARD.CUT 325'OF E-LINE, • 15'OVER EXPECTED VALUE. DRESS COIL AND M/U BAKER CTC.PULL TEST TO 40K, PT TO 3500 PSI. PUMP 3/4"BALL AROUND COIL.RECOVER BALL. 05:15 - 07:30 2.25 CASING P RUNPRD SET INJECTOR ON LEGS. R/U TO RUN LINER. 07:30 - 18:00 10.50 CASING _ P RUNPRD PJSM THEN RESOLVE DIFFERENCE IN LINER TALLY. WELL PROGRAM SHOWED A FULL JOINT BETWEEN THE FLOATS BUT THIS WAS CHANGED TO A 4 FT PUP TO EXTEND THE PERF INTERVAL DOWNHOLE AS MUCH AS POSSIBLE. M/U COMPLETION BHA LINFR AS PFR RUN TALLY. FILL AFTER EACH 10 JTS RAN. DRIFT FIRST 5 JTS OF 2-7/8"WITH A 2.30" DRIFT. DRIFT THE FIRST 5 JTS OF 3-3/16" WITH A 2.75"DRIFT. LAY OUT 1 JT OF 3.188"LINER THAT DID NOT DRIFT. REDUCE M/U TORQUE FROM 1400 TO 1250 FT'LBS,NEXT 3 JTS DRIFT OK. CONTINUE M/U LINER. 18:00 - 22:10 4.17 CASING P RUNPRD CREW CHANGE.DISCUSS ONGING OPS. CHECK EQUIPMENT STATIS. HOLD DETAILED PJSM FOR RUNNING REMAINING LINER.REVIEW SOP. ANY QUESTIONS OR IF SOMETHING DOES'NT APPEAR RIGHT- SHUT DOWN THE JOB AND REVIEW. VERIFY TONG TORQUE-CONTINUE M/U LINER- FILL EVERY 10 JTS RAN. M/U SELRT-VERIFY STRING WT 13K. M/U XO,3/4"DC,XO, 4 JTS 2 3/8"PH6 TBG, XO, LS,XO,CTC. Printed 10/17/2011 1:41:50PM North America -ALASKA- BP Page 30 of 30 Operation Summary Report Common Well Name:C-10 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/29/2011 End Date: X3-010P7-C(1,898,705.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:10 - 23:00 0.83 CASING P RUNPRD PJSM,M/U INJECTOR. R/U AND PT QTS TO 250/3500 PSI 5 MIN EACH. STRING WT 18.7 K 23:00 - 00:00 1.00 CASING P RUNPRD SET PUMP TRIP FOR 1800 PSI RIH WITH LINER ASSY PUMPING.24 BPM 1550PSI. R _ Printed 10/17/2011 1:41:49PM North America -ALASKA- BP Page 1 of 10 Operation Summary Report Common Well Name:C-10 AFE No Event Type: COM-ONSHORE(CON) Start Date:9/5/2011 End Date: X3-010P7-(1,139,778.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/25/2011 00:00 - 01:30 1.50 CASING P RUNPRD RIH LINER ASSY PUMPING.24 BPM 1550 PSI RIH TO 7900'FLAG, 11176.7'CORRECTED TO 11157.47', -19' CORRECTION. RIH TO 11290'P/U WT 45K,S/O WT 23K. CONTINUE RIH EXITING WINDOW @ 11311' RIH @ 42 FPM. 01:30 - 03:10 1.67 CASING P RUNPRD WORK THROUGH SHALES,TIGHT @ 12620', STACKING WT AT 12652' P/U TO 12605'WITH 10K OVERPULL, RIH, STACK WT AT 12760'- P/U TO 12725'WITH 10K OVERPULL,RIH, TIGHT AT 13195', STACK WT AT 13293', 8K OVERPULL,RIH. STACK WT AT 13350', 8K OVERPULL,RIH. TIGHT AT 13390',13720',13741',13794' STACK WT AT 13293', 8K OVERPULL, RIH. TAG 13970'CORRECTED TD.TAG 2 TIMES TO CONFIRM. 03:10 - 04:45 1.58 CASING P RUNPRD P/U WT 47K. POSITION BALL DROP. PJSM-PUMP 10 BBLS 2%KCL. LAUNCH 5/8"STEEL BALL. STACK 12K.PUMP 2.6 BPM 3250 PSI.HEAR BALL ROLLING. BALL ON SEAT @ 04:37,SHEARED AT 4548 PSI. P/U 4'TO BREAKOVER @ 29K.CONFIRM LINER RELEA STACK 12K 04:45 - 06:30 1.75 CASING P RUNPRD PJSM-R/U, PULL FLUID OFF PITS AND DISPLACE MUD SYSTEM WITH 2%KCL BRINE 06:30 - 09:30 3.00 CASING P RUNPRD CONTINUE CIRCULATING 9.16 PPG BRINE AROUND TO DISPLACE MUD. AFTER MUD IS DISPLACED7PUMP PRESSURE IS 1640 PSI @ 2.0 BPM. CONTINUE TO CIRC BRINE AROUND WHILE MUD SWAP IS COMPLETED. MIX 130 BBLS OF 2#BIOZAN IN PITS 4,5. NO LOSSES WHEN KCL IS PUMPED AROUND. 09 30 - 10:00 0.50 CASING P RUNPRD PJSM FOR MIXING AND PUMPING CEMENT. SWITCH TO FILTER BYPASS IN REEL HOUSE FOR CEMENT JOB. 10:00 - 10:30 0.50 CASING P RUNPRD PRIME UP SLB UNIT,PT LINE TO 4500 PSI. GOOD TEST. 10:30 - 11:00 0.50 CASING P RUNPRD START BATCHING UP CEMENT. WHEN CEMENT IS ALMOST UP TO WEIGHT SWITCH TO BIOZAN AND PUMP BIO TO REEL, SHUT DOWN. 11:00 - 11:30 0.50 CASING P RUNPRD START CEMENT DOWN THE CT WITH THE SLB CEMENT PUMP. ZERO IN MM AT 15 PPG. SHUT DOWN AT 30.5 BBLS AND SEND BIOZAN OUT TO SLB CMT VAN TO CLEAN UP. SWITCH TO RIG PUMP FOR DISPLACEMENT. ZERO IN AND OUT MM. Printed 10/17/2011 1:42:24PM North America -ALASKA- BP Page 2 of 10 Operation Summary Report Common Well Name:C-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/5/2011 j End Date: X3-010P7-(1,139,778.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 12:00 0.50 CASING P RUNPRD DISPLACE AT 1.9 BPM TO CATCH UP WITH CEMENT. CONTINUE DISPLACEMENT,REDUCE RATE WHEN LEADING EDGE OF CEMENT IS AT THE LWP. 12:00 - 13:30 1.50 CASING P RUNPRD ZERO OUT MM WHEN CMT IS AT THE SHOE, LEAVE IN MM RUNNING. WITH 2 BBLS CEMENT LEFT ABOVE THE SELBRT,STOP PUMP. PICK UP TO BREAKOVER WT+13 FT,SET BACK DOWN NOW 10 FT HIGHER AT SAME WEIGHT. PUMP TO SEAT THE PEE WEE DART THEN PICK UP A FOOT TO EXPOSE SIDE EXHAUST. SIDE EXHAUST 5 BBLS AT 1.5 BPM,1000 PSI. OPEN BAKER.CHOKE,RIH TO 10K DOWN THEN CLOSE BAKER CHOKE. LAUNCH LWP WITH 3400 PSI,BUMP AT 20.2 BBLS VS 20.0 CALCULATED. HOLDING 2500 PSI. OPEN BAKER CHOKE,NO FLOW,FLOATS HOLDING. PRESSURE UP TO 700 PSI AND UNSTING, CIRC 3 BBLS AT LINER TOP. 27.7 BBLS 15.8#CLASS G CEMENT BEHIND PIPE VS 30.5 BBLS PUMPED. 13:30 - 15:30 2.00 CASING P RUNPRD POH REPLACING COIL VOIDAGE+0.5 BPM 15:30 - 16:30 1.00 CASING P RUNPRD TAG STRIPPER AND FLOW CHECK. UD 4 JTS PH6 AND SELRT RUNNING TOOLS. RECOVER 5/8"BALL,TOOLS HAVE FUNCTIONED NORMALLY. 16:30 - 18:00 1.50 CASING P RUNPRD OFFLOAD RUNNING TOOLS,PREP RIG FLOOR FOR MCNL RUN. 18:00 - 18:45 0.75 CASING P - RUNPRD CREW CHANGE,NEW CREW ARRIVING FROM DAYS OFF. DISCUSS ONGOING RIG OPS.CHECK RIG EQUIPMENT. 18:45 - 20:15 1.50 CASING P RUNPRD PJSM FOR P/U CLEANOUT/LOGGING BHA# 10 REVIEW SOP FOR HANDLING SOURCE FOR LOGGING. REVIEW SOP FOR HANDLING 1 1/4"CSH. ONLOAD LOGGING TOOLS.CHECK BHA COMPONENTS. SLB LAB REPORTS UCA TEST REACHED 500 PSI COMPRESSIVE STRENGHT @ 19:49 HRS. 20:15 - 00:00 3.75 EVAL P RUNPRD M/U BHA#10-2.30"D331 MILL,2 1/8" EXTREME MOTOR,XO,2 JTS 1 1/4 CSH, XO,SWS MEMORY GR/CCL,CIRC SUB,5/8 DC,XO, 108 JTS 1 1/4"CSH,XO,3/4 DC, DBPV,XO,2 JTS 2 3/8 PH6,XO,LOCKING SWIVEL,XO,CTC. DRIFT 1 1/4"CSH,BREAK CIRCULATION EVERY 30 JTS TO ENSURE NO PLUGGING OFF. 9/26/2011 00:00 - 01:54 1.90 EVAL P OTHCMP CONTINUE P/U 1 1/4"CSH,RIH WITH BHA#10 CLEANOUT LOGGING ASSY.DRIFT 1 1/4" CSH. _M/U INJECTOR.PVT=313 BBLS. 01:54 - 02:15 0.35 EVAL P OTHCMP TEST QTS TO 250/3500 PSI 5 MIN EACH. Printed 10/17/2011 1.42:24PM North America -ALASKA- BP Page 3 of 10 Operation Summary Report Common Well Name: C-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/5/2011 End Date: X3-010P7-(1,139,778.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:15 - 04:20 2.08 EVAL P OTHCMP RIH PUMPING.4 BPM 600 PSI. CLABERED BIO RETURNS PLUGGING OUT MICRO MOTION. CLEAR MM. CONTINUE RIH TO 10,000' 04:20 - 07:30 3.17 EVAL P OTHCMP LOG DOWN FROM 10,000'- ------ 30 FPM.PUMPING 1 BPM AT 1675 PSI. 07:30 - 09:00 1.50 EVAL P OTHCMP CIRC B/U FROM TD UNTIL CLEAN RETURNS. 09:00 - 10:30 1.50 EVAL P OTHCMP GET 180 BBLS NEW FLUID OUT TO RIG, CONTINUE TO CIRC B/U. 10:30 - 11:20 0.83 EVAL P OTHCMP SEND NEW FLUID DOWNHOLE AND MIX PERF PILL. PAINT FLAG AT 10000 FT EOP. 11:20 - 12:20 1.00 EVAL P OTHCMP SEND PERF PILL DOWNHOLE. 12:20 - 13:40 1.33 EVAL P OTHCMP PUT LOGGING TOOL IN SLIGHT COMPRESSION AT PBTD, START LOGGING UP AT 60 FT/HR. LAY IN PERF PILL. 13:40 - 15:00 1.33 EVAL P OTHCMP STOP AT 10000 FT TO END LOGGING RUN. POOH CONTINUE PUMPING 1 BPM. 15:00 - 15:15 0.25 EVAL P OTHCMP TAG STRIPPER AND FLOW CHECK WELL. PJSM FOR UD PH6 AND STAND BACK CSH. 15:15 - 18:00 2.75 EVAL P OTHCMP 'UD PH6 AND STAND BACK CSH. 18:00 - 18:30 0.50 EVAL P OTHCMP CREW CHANGE,DISCUSS ONGOING RIG OPS.MAKE EQUIPMENT CHECKS. PJSM FOR STANDING BACK CSH.REMINDED EVERYONE TO ALWAYS LOOK UP- BEFORE RUNNING HOISTS AND MOVING RIG BLOCKS. 18:30 - 19:00 0.50 EVAL P OTHCMP STAND BACK REMAINING CSH. 19:00 - 19:30 0.50 EVAL P OTHCMP PJSM FOR HANDLING SOURCE WITH CREW AND SLB LOG CREW. REVIEW SOP FOR REMOVING SOURCE. FLOW CHECK WELL. UD SOURCE, LOG TOOLS,REMAINING BHA. 19:30 - 19:45 0.25 EVAL P OTHCMP LOAD LOG TOOLS OUT. CLEAR AND CLEAN RIG FLOOR. DOWNLOAD LOGGING DATA. 19:45 - 20:30 0.75 EVAL P OTHCMP PJSM FOR TESTING LINER LAP. M/U CAP ON LUBRICATOR. FILL KILL LINE AND CHOKE MANIFOLD. ISLATE CHOKE MANIFOLD.PUMP THROUGH KILL LINE- PRESSURE TEST LINER LAP TO 300 PSI FOR 5 MIN. PRESSURE UP-STAGING TO 1300 PSI. INJECTING.6 BPM. SLOWLY BLEED OFF PRESSURE.CHART RECORD TEST. CONFIRM LINER LAP TEST FAILURE.NOTIFY WTL OF FAILURE AND ODE. 20:30 - 23:15 2.75 EVAL P OTHCMP SLB LOGGERS CONTINUE TO DOWNLOAD DATA. PJSM, LOAD PERF GUNS AND EQUIPMENT ONTO RIG. PBTD+13956.69'WITH-2.5'DEPTH CORRECTION. CORRECTED EOP FLAG=9998.86' Printed 10/17/2011 1.42:24PM North America -ALASKA- BP Page 4 of 10 Operation Summary Report Common Well Name:C-10 AFE No Event Type: COM-ONSHORE(CON) Start Date:9/5/2011 End Date X3-010P7-(1,139,778.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:©62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:15 - 00:00 0.75 EVAL P OTHCMP R/U TO RUN PERF GUNS. CHECK SAFERTY JT. PJSM FOR P/U PERF GUNS. 9/27/2011 00:00 - 03:30 3.50 PERFUB P OTHCMP M/U 2"TCP 6 SPF 2006PJ PERF GUN ASSY @ PER PERF SUMMARY. BULL NOSE,37 PERF GUNS W/8 BLANKS, E-FIRE HEAD,5/8"DC,XO, 76 JTS 1 1/4"CSH,XO,3/4"DC, DBPV,XO,2-2 3/8"PH6,XO,SWIVEL,XO,CTC. M/U INJECTOR. 03:30 - 04:00 0.50 PERFUB P OTHCMP TEST QTS TO 250/3500 PSI 5 MIN EACH. 04:00 - 05:30 1.50 PERFUB P OTHCMP SET PUMP TRIP AT 500 PSI. RIH 80 FPM.PUMPING.3 BPM 110 PSI. RIH TO 10500'SLOW DOWN TO 50 FPM. 05:30 - 08:00 2.50 PERFUB P OTHCMP RIH AND CORRECT-11 FT TO FLAG. TAG PBTD AND CORRECT ANOTHER 4 FT TO PBTD THAT WAS FOUND ON THE EARLIER MCNL RUN. PICK UP CT TO ABOUT 2 FT BELOW THE DESIRED SHOT DEPTH,TO ALLOW ROOM TO - MOVE WHEN THE GUNS GO OFF. GO THROUGH PUMP SEQUENCE TO ACTIVATE THE E-FIRE HEAD. FIRE GUNS WHILE MOVING CT SLOWLY UPHOLE. GET GOOD SHOT INDICATION FROM ACOUSTIC,FLUID LOSSES AND SLIGHT OVERPULL. INCREASE PUMP RATE AFTER SHOTS FIRE TO GET RETURNS. PERFORATED INTERVALS: 2.00"6SPF 2006PJ 13000-13440 13490-13530 13580-13610 13630-13650 13760-13790 13820-13870 13900-13940 08:00 - 09:10 1.17 PERFUB P OTHCMP POOH AT 50 T/MIN,HOLD 230 PSI WHP UNTIL THE GUNS ARE OUT OF THE LINER. 09:10 - 09:40 0.50 PERFUB P OTHCMP PARK AT 10700 FT FOR FLOW CHECK. 09:40 - 10:00 0.33 PERFUB P OTHCMP FLOW CHECK SHOWS NO FLOW,CONTINUE POOH. 10:00 - 10:30 0.50 PERFUB P OTHCMP TRIP SHEET FROM 10700 TO 9700 FT SHOWS -4 BBLS,INSTEAD OF CALCULATED-5.5 BBLS DISPLACEMENT. STOP AT 9700 FT AND FLOW CHECK FOR 10 MIN,NO FLOW. CONTINUE POOH. 10:30 - 11:00 0.50 PERFUB P OTHCMP CONTINUE TO POOH. 11:00 - 13:30 2.50 PERFUB P OTHCMP TAG UP AT SURFACE. FLOW CHECK.WELL STABLE. 13:30 - 15:00 1.50 PERFUB P OTHCMP MONITOR WELL DURING WSL CHANGEOUT. 15:00 - 19:00 4.00 PERFUB P OTHCMP L/D 76 JTS 1 1/4"CSH Printed 10/17/2011 1:42:24PM North America -ALASKA- BP Page 5 of 10 Operation Summary Report Common Well Name:C-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/5/2011 ' End Date: X3-010P7-(1,139,778.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 21:21 2.35 PERFUB P OTHCMP CREW CHANGE. DISCUSS ONGOING OPS. MAKE EQUIPMENT CHECKS. FLOW CHECK WELL-STATIC.CHECK SAFETY JT FOR PROPER XO. PJSM-LAY DOWN PERF GUNS. PVT=362 BBLS.0/A 44 PSI.I/A=0 PSI. 21:21 - 22:35 1.23 PERFUB P OTHCMP R/D, DRAIN AND LOAD OUT PERF GUNS. FLOW CHECK WELL,STATIC. CLEAN RIG FLOOR. 22:35 - 00:00 1.42 PERFUB P OTHCMP PJSM,R/U-RIH WITH REMAINING 1 114"CSH FROM DERRICK. L/D THE SAME. 9/28/2011 00:00 - 00:30 0.50 ZONISO P RUNPRD PJSM, LOAD 4.5 KB LTP AND TOOLS ONTO RIG FLOOR. 00:30 - 01:20 0.83 ZONISO P RUNPRD M/U BHA#12,SEAL UNIT, LOCATOR 4.5 KO 'PACKER,4"GH RUNNING TOOL, S/4"DC,XO,2 JTS 2 3/8" PH6,XO,CTC. M/U INJECTOR.. 01:20 - 02:25 1.08 ZONISO P RUNPRD TEST QTS, FAILED 0-RING.UNSTAB INJECTOR- C/O 0-RING.TEST QTS TO 250/3500 PSI 5 MIN EACH. 02:25 - 05:00 2.58 ZONISO P RUNPRD SET PUMP TRIP AT 500 PSI. RIH 80 FPM PUMPING.4 BPM 100PSI. SLOWING DOWN TO 20 FPM PASSING THROUGH JEWELRY. WEIGHT CHECK AT 10800'P/U 45K. 05:00 - 05:50 0.83 ZONISO P RUNPRD PUMPING.4 BPM STING INTO TOL AT 10857',WITH PRESSURE INCREASE. SHUT DOWN PUMP,STACK 10K TO 10863' P/U TO 10833'AT BALL DROP POSITION, SET PUMP TRIP TO 1300 PSI. LAUNCH 5/8"BALL WITH 1200 PSI. PUMP 2 BPM 1100 PSI.HEAR BALL ROLLING. PUMP 30 BBLS,SLOW PUMP TO.73 BPM 170 PSI. BALL ON SEAT @ 0550.PUMP OFF, RIH TO 10863'STACKING 10K. P/U TO BREAKOVER WEIGHT PLUS 2'AT 10859'SET PUMP TRIP TO 4000 PSI. PRESSURE UP TO 1900 PSI,STACK 10K.. CONFIRM PACKER SET 05:50 - 06:30 0.67 ZONISO P RUNPRD CREW CHANGE. DISCUSS OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. 06:30 - 08:30 2.00 ZONISO P RUNPRD LINE UP TO PRESSURE LINER TOP PACKER DOWN COIL ANNULUS. PRESSURE TO 1490 PSI. INJECTION RATE OF 0.45 BPM NOTED. VERIFY NO LEAKS OR FLOW PATHS IN SURFACE EQUIPMENT. PERFORM STEPS TO RE SET PACKER AGAIN. PU AND SET BACK DOWN. PRESSURE TO- 2-000 O2-000 PSI. RETEST LAP WITH SAME RESULT. RUN THROUGH SETTING PROCEDURE A THIRD TIME. NO CHANGE. DISCUSS OPTIONS WITH TOWN TEAM. PRESSURE SHEAR RELASE FROM PACKER. TEST AGAIN. NO CHANGE. Printed 10/17/2011 1.42.24PM North America -ALASKA- BP Page 6 of 10 Operation Summary Report Common Well Name:C-10 AFE No Event Type: COM-ONSHORE(CON) Start Date:9/5/2011 End Date: X3-010P7-(1,139,778.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: 500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:30 - 11:30 3.00 ZONISO N DFAL RUNPRD HOLD PJSM TO DISCUSS TRIP. CIRC OUT OF HOLE AT 60 FPM. PAY CLOSE ATTENTION TO JEWELRY ETC. 11:30 - 12:15 0.75 ZONISO N DFAL RUNPRD AT SURFACE. FLOW CHECK. GET OFF WELL. UNSTAB COIL. LD PACKER RUNNING TOOL. TOOL LOOKS NOMINAL. MU GS SPEAR,JARS, HDC AND CHECKS. STAB COIL. GET ON WELL. PT LUBRICATOR CNXN. 12:15 - 14:30 2.25 FISH N DFAL RUNPRD RUN IN HOLE. 14:30 - 15:30 1.00 FISH N DFAL RUNPRD WT CHECK:25K DN,46K#UP. SET DN ON PKR AT 10,849'. SET 10K#. PU. NO OVERPULL. SET DN AGAIN AT FASTER RNG SPEED. PU. NO OVERPULL. PUMP AT 2.1 BPM W/1840 PSI. SET DN ON FISH AGAIN. SET 15K#DN. PU. NO OVER PULL. REPEAT TWO ADDITIONAL TIMES. NEVER OBSERVED AN OVERPULL. 15:30 - 18:00 2.50 FISH N DFAL RUNPRD HOLD PJSM TO DISCUSS TRIP,AND SWABBING HAZARD IN DETAIL. HOLD 425 PSI WHP. POOH AT 25 FPM THROUGH DEEP NIPPLES. MONITOR MICRO OUT AND PVT. BOTH IN GOOD AGREEMENT WITH CALC'D VALUES. INCREASE RNG SEED TO 65 FPM ABOVE 10,000'WHILE POOH. 18:00 - 18:35 0.58 FISH N DFAL RUNPRD CREW CHANGE,DISCUSS RIG OPS.CHECK RIG EQUIPMENT. TAG UP.FLOW CHECK WELL-STATIC. PJSM FOR UD FISH BHA. 18:35 - 19:15 0.67 FISH N .DFAL RUNPRD UD AND INSPECT BHA. RECOVERED FISH.4.5 KB PACKER,SLIPS AND SEALS INTACT. PACKER APPEARED TO NOT ENGAGE TOTALLY. SEND TO BOT TO DIAGNOSE PACKER. 19:15 - 20:00 0.75 ZONISO N DFAL RUNPRD PJSM, CUT 100'COIL. 20:00 - 21:00 1.00 ZONISO N DFAL RUNPRD PJSM, M/U INJECTOR,CLOSE MASTER AND SWAB VALVE. PERFORM SHELL TEST,TO TEST BREAK IN RISER CONNECTION. TEST TO 250/3500 PSI 5 MIN EACH.OPEN MASTER AND SWAB VALVE. FLOWCHECK WELL. 21:00 - 22:00 1.00 ZONISO N DFAL RUNPRD PJSM, UNSTAB INJECTOR. DRESS AND M/U BOT CTC. PULL TEST 36K, PT TO 4000 PSI. 22:00 - 22:40 0.67 ZONISO N DFAL RUNPRD PJSM, M/U BHA#14, SEAL UNIT, LOCATOR,2 27/8 STL PUP,4.5 KB LTP, 4"GH RUNNING TOOL.3/4"DC,XO,2 JTS 2 3/8"PH6,XO, CTC. M/U INJECTOR. PVT=329 BBLS. 22:40 - 23:05 0.42 ZONISO N DFAL RUNPRD TEST QTS TO 250/3500 PSI 5 MIN EACH. 23:05 - 00:00 0.92 ZONISO N DFAL RUNPRD SET PUMP TRIP AT 500 PSI. RIH 75 FPM PUMPING.5 BPM 110 PSI. SLOWING DOWN TO 20 FPM PASSING THROUGH JEWELRY. Printed 10/17/2011 1:42:24PM North America -ALASKA- BP Page 7 of 10 Operation Summary Report Common Well Name: C-10 AFE No Event Type: COM-ONSHORE(CON) Start Date:9/5/2011 j End Date: X3-010P7-(1,139,778.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/29/2011 00:00 - 02:05 2.08 ZONISO N RUNPRD CONTINUE RIH WITH BHA#14,4.5 KB LTP ASSY. RIH 75 FPM,PUMPING.5 BPM 120 PSI. RIH TO 10,800,P/U 47K, 02:05 - 04:00 1.92 ZONISO N RUNPRD RIH AND STING INTO TOL PUMPING.5 BPM. RIH PRESSURE INCREASE AT 10853' SHUT DOWN PUMP OPEN CHOKE.RIH TO 10862.6'STACKING 5K.P/U TO BREAKOVER- PLUS 2'TO 10853',P/U TO 10850',CLOSE CHOKE,PUMP.5 BPM-CONFIRM STING IN DEPTH. LANDED AT 10861 STACK 4K, UNSTING, P/U TO BALL DROP POSITION. PRESSURE TO 1000 PSI-LAUNCH 5/8"BALL. PUMP 1.75 BPM 900 PSI. BALL OVER GOOSENECK AT 22 BBLS.30 BBLS REDUCE TO.5 BPM 100 PSI. SET TRIP TO 400 PSI.BALL ON SEAT 03:25,42 BBLS,OPEN BAKER CHOKE. STING BACK IN.STACK 10K.P/U TO BREAKOVER.PLUS 2'TO 10858,'CLOSE BAKER CHOKE. SET TRIP TO 2000 PSI,PRESSURE TO 1800 PSI-ENGAUGE SLIPS.SET DOWN TO 10863', LANDING ON LOCATOR.SLIPS NOT SETTING. P/U TO BREAKOVER PLUS 3'TO 10857' PRESSURE TO 2500 PSI,STACK 10K,P/U WITH OVERPULL.SET BACK DOWN TO 10861- 2'HIGHER. OPEN BAKER CHOKE,STACK 10K.SLIPS APPEAR TO SET TAKING WT.CLOSE BAKER CHOKE. 04:00 - 06:00 2.00 ZONISO N DEAL RUNPRD PUMP DOWN BACKSIDE,PRESSURE TEST LINER LAP TO 300 PSI FOR 5 MIN. PRESSURE UP TO 1660 PSI START INJECTING.CHECK SURFACE EQUIPMENT -NO LEAKS. OPEN BAKER CHOKE,P/U TO 10865' PRESSURE TO 2500 PSI,STACK 10K,1 FT HIGHER AT 10862' OPEN BAKER CHOKE.LINE UP AND PRESSURE BACKSIDE,INJECTING 1580 PSI. TRY 2 MORE TIMES TO SET MOVING 1' UPHOLE EACH TIME. ATTEMPT SETTING SEQUENCE WITH 3000 PSI.AS PER BTT REP. NO SUCCESS. 06:00 - 06:30 0.50 ZONISO N DFAL RUNPRD CREW CHANGE. DISCUSS OPERATIONS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO TRY AND SET PACKER. DISCUSS SITUATION WITH BTT IN DEADHORSE. 06:30 - 07:00 0.50 ZONISO N DFAL RUNPRD UNABLE TO GET SATISFACTORY TEST. SHEAR RELEASE FROM PACKER BY PRESSURING UP TO 3450 PSI. 07:00 - 10:00 3.00 ZONISO N DFAL RUNPRD HOLD PJSM TO DISCUSS TRIP. CIRCULATE OUT OF HOLE. PVT:346 BBLS. 10:00 - 10:30 0.50 ZONISO N DFAL RUNPRD AT SURFACE. FLOW TEST. GET OFF WELL. UNSTAB COIL. INSPECT SETTING BHA. LOOKS NOMINAL. Printed 10/17/2011 1:42:24PM North America -ALASKA- BP Page 8 of 10 Operation Summary Report Common Well Name: C-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/5/2011 End Date X3-010P7-(1,139,778.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:©62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:30 - 11:00 0.50 BOPSUR P RUNPRD FUNCTION TEST BOPS FROM OPS CAB AND NORDIC DRILLERS STATION ON RIG FLOOR. GOOD TEST. 11:00 - 12:00 1.00 FISH N DFAL RUNPRD MU FISHING BHA WITH GS SPEAR AND JARS. STAB COIL. GET ON WELL. TEST LUBRICATOR. 12:00 - 14:15 2.25 FISH N DFAL RUNPRD RUN IN HOLE. 14:15 - 14:30 0.25 FISH N DFAL RUNPRD WT CHECK:22K#DN,46K#UP. TAG FISH AT 10,840'. PU AND NOTE OVEPULL TO 50K#. SET DN AGAIN. TAG 1'SHALLOWER. PU CLEAN. HOLD PJSM TO DISCUSS HOLE FILL AND TRIP. 14:30 - 17:00 2.50 FISH N DFAL RUNPRD PULL OUT OF HOLE. MAINTAIN 425 PSI WHP. MONITOR HOLE FILL CLOSELY. TAG SURFACE. 17:00 - 17:10 0.17 FISH N DFAL RUNPRD FLOW CHECK WELL-STATIC. 17:10 - 18:00 0.83 FISH N. DFAL RUNPRD PJSM-L/D FISHING BHA#15, RECOVERED 4.5 KB LTP ASSY. INSPECT PACKER-LOOKS NORMAL.SLIPS --NOT ENGAGED. 18:00 - 19:00 1.00 ZONISO N DFAL RUNPRD CREW CHANGE.DISCUSS RIG OPS.CHECK RIG EQUIPMENT M/U BHA#16,SEAL ASSY WITH LOCATOR,2 7/8"PUP,XO,4.5 KB LTP, 10J HYD SET TOOL,XO, INFLATION VALVE, XO,XO,3/4"DC,XO, 2 JTS PH6,XO,CTC.M/U INJECTOR. 19:00 - 19:30 0.50 ZONISO N DFAL RUNPRD TEST QTS TO 250/3500 PSI 5 MIN EACH. 19:30 - 22:15 2.75 ZONISO N DFAL RUNPRD SET PUMP TRIP TO 300 PSI. RIH PUMPING.47 BPM 105 PSI. TO 10800',P/U 45K 22:15 - 23:10 0.92 ZONISO N DFAL RUNPRD STING IN TOL,TAG LOCATOR AT 10861. STACK 10K 10863', P/U TO BREAKOVER PLUS 2'TO 10853',SET DOWN TO 10858' CONFIRM BREAKOVER PLUS 2'AT 10853' STACK 8K AT 10861'AT BALL DROP POSITION. SET TRIP TO 1500 PSI. LAUNCH 1/2"BALL PUMPING 1.67 BPM 870 PSI. P/U TO BREAKOVER PLUS 2'AT 10853',PUMP BALL ON SEAT.SHEAR AT 1100 PSI. STACK 8K TO CONFIRM SET.SET AT 10853', TOP LTP @ 10836.62', 23:10 - 00:00 0.83 ZONISO N DFAL RUNPRD FLOWCHECK,POH WITH SETTING TOOL. 9/30/2011 00:00 - 01:05 1.08 ZONISO N DFAL RUNPRD POH WITH SETTING TOOL. 01:05 - 01:15 0.17 ZONISO N DFAL RUNPRD FLOWCHECK,STATIC. PVT=310 BBLS. 01:15 - 01:35 0.33 ZONISO N DFAL RUNPRD SET BACK INJECTOR. L/D AND INSPECT LTP RUNNING BHA, RECOVER 1/2"BALL. M/U BHA#17, LT TEST ASSY, 4"HYD GS, HIGHLOAD DC, DBPV,XO,2 JTS PH6,XO,CTC. M/U INJECTOR. Printed 10/17/2011 1:42.24PM North America -ALASKA- BP Page 9 of 10 Operation Summary Report Common Well Name:C-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/5/2011 End Date: X3-010P7-(1,139,778.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:35 - 01:55 0.33 ZONISO N DFAL RUNPRD TEST QTS TO 250/3500 PSI 5 MIN EACH. 01:55 - 04:05 2.17 ZONISO N DFAL RUNPRD RIH PUMPING.38 BPM 100 PSI. 47K P/U @ 10800' - 04:05 - 05:10 1.08 ZONISO N DFAL RUNPRD STING INTO LTP @ 10836' SET DOWN 4K.LINE UP TO PUMP DOWN BACKSIDE. ,_PT LINER LAP TO 300 PSI FOR 5 MIN.2200 PSI FOR 30 MIN. •PRESSURE BLED 50 PSI IN THE FIRST 5 MIN, _HELD SOLID AT 2150 PSI FOR THE REMAINING 25 MIN. PASSING TEST. SLED PRESSURE OFF BACKSIDE SLOWLY. UNSTING 05:10 - 06:00 0.83 ZONISO P RUNPRD PJSM, DISCUSS HOLE FILL AVOID PUMPING DOWN THE COIL- TO PREVENT GS FROM RELEASING. LINE UP AND FILL FROM KILL LINE HOLDING 250 PSI BACK PRESSURE WITH CHOKE. 06:00 - 06:30 0.50 ZONISO -P RUNPRD CREW CHANGE. DISCUSS OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO POOH WITH SEAL ASSY BHA. 06:30 - 08:00 1.50 ZONISO P RUNPRD POOH. HOLD 280 PSI WHP. MONITOR HOLE FILL. 08:00 - 08:30 0.50 ZONISO P RUNPRD HOLD PJSM. AT SURFACE. FLOW CHECK. GET OFF WELL. UNSTAB COIL. PULL AND LD BHA. ALL TOOLS RECOVERED. 08:30 - 09:00 0.50 DEMOB P POST MU NOZZLE BHA WITH CHECKS. STAB COIL. GET ON WELL. TEST LUBRICATOR. 09:00 - 12:00 3.00 DEMOB P POST RUN IN HOLE. DISPLACE WELL FROM 2500' TO DIESEL. RU LRS PUMPERS. HOLD PJSM. PT TO 300 AND 4000 PSI. CIRCULATE 45 BBLS DIESEL AT AMBIENT TEMP WHILE POOH. AT SRFACE. 12:00 - 12:30 0.50 DEMOB P POST GET OFF WELL. RD LRS. 12:30 - 15:00 2.50 DEMOB P POST RU SLB N2 PUMPER. HOLD PJSM TO DISCUSS BLOW DOWN PROCEDURE. PUMP 10 BBLS MEOH. CHASE WITH N2. RD SLB UNIT. 15:00 - 17:00 2.00 BOPSUR P POST PU DSM TOOLS. HOLD PJSM TO DISCUSS PROC. RU LUBRICATOR. SET BPV. RD DSM EQUIPMENT. 17:00 - 18:00 1.00 DEMOB P POST CONTINUE TO PREP FOR RIG MOVE. 18:00 - 19:00 1.00 DEMOB P POST CREW CHANGE.DISCUSS CURRENT R/D STATUS. PJSM, SPOOL COIL BACK AND SECURE REEL. 19:00 - 20:30 1.50 DEMOB P POST PJSM,CHANGE OUT RAMS FOR 2"COIL. Printed 10/17/2011 1:42:24PM North America -ALASKA - BP Page 10 of 10 Operation Summary Report Common Well Name: C-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/5/2011 End Date: X3-010P7-(1,139,778.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 2 Spud Date/Time:7/17/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292037100 Active Datum:C-10A:@62.32ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 21:30 1.00 DEMOB P POST PJSM,R/D GOOSENECK AND STUFFING BOX. CONTINUE TO CLEAN PITS 21:30 - 23:00 1.50 BOPSUR P POST PJSM, WD BOPE. SECURE BOPE. 23:00 - 00:00 1.00 DEMOB P POST PJSM,LOWER REEL OUT. INSPECT REEL WINCH CABLES. 10/1/2011 00:00 - 01:30 1.50 WHSUR P POST _PJSM,M/U TREE CAP. R/U,TEST TREE CAP WITH DIESEL TO 250/ 3500 PSI 5 MIN EACH 01:30 - 06:00 4.50 RIGD P POST CONTINUE CLEANING PITS,ONLY 1 VAC TRUCK AVAILABLE. R/D-PREP RIG FOR PULLING OFF WELL. WORK ON RIG MOVE CHECKLIST. WARM UP RIG MOVE SYSTEM. RIG RELEASED AT 0600 HRS ON 10/1/11 06:00 - 09:00 3.00 RIGD P POST CONTINUE TO WARM MOVE SYSTEM. MOVE ADDITIONAL EQUIPMENT AWAY FROM RIG. MAKE FINAL WALK AROUND. HOLD IN DEPTH PJSM TO DISCUSS BACKING OFF WELL. DISCUSS COMMS,SPOTTER ROLES& POSITIONS,SIGNALS,CONTINGENCIES. JACK RIG. BACK OFF WELL. SPOT RIG ON PAD. REMOVE RIG MATS AND MATERIALS FROM AROUND CELLAR AND TREE. WAIT ON DOYON 16 TO COMPLETE RIG MOVE TO Z PAD. Printed 10/17/2011 1.42:24PM .p.■ BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB C Pad C-10 - Slot 10 500292037100 C-10B Survey: MWD Survey Report - Geographic 26 September, 2011 nub BAKER HUGHES Survey Report-Geographic 0 bP INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-10-Slot 10 Project: Prudhoe Bay TVD Reference: C-10A:@ 62.32ft(C-10A:) Site: PB C Pad MD Reference: C-10A:@ 62.32ft(C-10A:) Well: C-10 North Reference: True Wellbore: C-106 Survey Calculation Method: Minimum Curvature Design: C-10B Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB C Pad,TR-11-14 Site Position: Northing: 5,957,218.72ft Latitude: 70°17'22.367 N From: Map Easting: 662,550.03ft Longitude: 148°41'2.797 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 1.24 ° Well C-10 API No 500292037100 Well Position +N/-S 0.00 ft Northing: 5,960,439.00 ft Latitude: 70°17'53.693 N i +Ei-W 0.00 ft Easting: 664,143.00 ft Longitude: 148°40'14.339 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00 ft Wellbore C-10B API No 500292037102 Magnetics Model Name Sample Date Declination Dip Angle Field Strength I (°) (°) (nT) BGGM2011 9/1/2011 21.41 81.01 57,665 Design C-10B Audit Notes: Version: Phase: ACTUAL Tie On Depth: 11,309.01 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 27.35 0.00 0.00 142.45 Survey Program Date: 9/26/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 100.40 8,500.40 GYD-CT-CMS(C-10) GYD-CT-CMS Gyrodata cont.casing m/s 8,505.00 11,309.01 C-10A IIFR(C-10A) MWD+IFR+MS MWD+IFR+Multi Station 11,309.01 13,970.00 MWD(C-10B) MWD MWD-Standard 9/26/2011 11:03:16AM Page 2 COMPASS 2003.16 Build 73 BAKER HUGHES Survey Report-Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-10-Slot 10 Project: Prudhoe Bay TVD Reference: C-10A:@ 62.32ft(C-10A:) Site: PB C Pad MD Reference: C-10A:@ 62.32ft(C-10A:) Well: C-10 North Reference: True Wellbore: C-10B Survey Calculation Method: Minimum Curvature Design: C-10B 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 11,309.01 92.72 120.67 9,039.61 -4,038.00 3,207.19 5,956,472.29 667,437.39 70°17'13.973 N 148°38'40.898 W TIP 11,311.50 92.95 120.11 9,039.49 -4,039.26 3,209.33 5,956,471.08 667,439.56 70°17'13.960 N 148°38'40.836 W' KOP 11,338.67 90.95 122.49 9,038.56 -4,053.37 3,232.53 5,956,457.48 667,463.06 70°17'13.821 N 148°38'40.160 W 11,368.53 89.54 125.11 9,038.44 -4,069.98 3,257.34 5,956,441.42 667,488.23 70°17 13.658 N 148°38'39.438 W 11,398.86 89.54 127.76 9,038.68 -4,087.99 3,281.74 5,956,423.95 667,513.01 70°17 13.481 N 148°38'38.727 W 11,428.84 89.20 134.16 9,039.01 -4,107.63 3,304.37 5,956,404.81 667,536.06 70°17'13.287 N 148°38'38.068 W 11,458.89 89.05 138.59 9,039.47 -4,129.37 3,325.09 5,956,383.52 667,557.26 70°17'13.073 N 148°38'37.465 W 11,488.48 88.44 142.64 9,040.12 -4,152.23 3,343.86 5,956,361.08 667,576.52 70°17'12.849 N 148°38'36.918 W 11,518.60 90.21 144.49 9,040.47 -4,176.46 3,361.74 5,956,337.25 667,594.93 70°17'12.610 N 148°38'36.397 W 11,549.00 91.29 147.26 9,040.07 -4,201.62 3,378.80 5,956,312.47 667,612.52 70°17'12.363 N 148°38'35.901 W 11,579.08 93.07 150.16 9,038.93 -4,227.30 3,394.40 5,956,287.14 667,628.69 70°17'12.110 N 148°38'35.446 W 11,608.37 94.18 153.91 9,037.08 -4,253.12 3,408.11 5,956,261.63 667,642.95 70°17'11.856 N 148°38'35.047 W 11,638.45 90.37 155.77 9,035.88 -4,280.32 3,420.88 5,956,234.72 667,656.32 70°17'11.589 N 148°38'34.676 W', 11,668.91 89.82 159.23 9,035.83 -4,308.45 3,432.54 5,956,206.84 667,668.58 70°17'11.312 N 148°38'34.336 W' 11,698.68 91.20 162.96 9,035.57 -4,336.61 3,442.18 5,956,178.91 667,678.84 70°17'11.035 N 148°38'34.056 W 11,728.92 93.01 166.45 9,034.46 -4,365.75 3,450.15 5,956,149.95 667,687.44 70°17'10.748 N 148°38'33.824 W 11,759.04 92.39 169.42 9,033.04 -4,395.17 3,456.44 5,956,120.67 667,694.37 70°17'10.459 N 148°38'33.641 W 11,788.99 91.29 171.07 9,032.08 -4,424.67 3,461.51 5,956,091.29 667,700.08 70°17'10.169 N 148°38'33.494 W 11,819.13 91.38 173.89 9,031.37 -4,454.54 3,465.46 5,956,061.52 667,704.68 70°17'9.875 N 148°38'33.379 W 11,848.41 91.47 176.34 9,030.65 -4,483.70 3,467.95 5,956,032.42 667,707.81 70°17'9.588 N 148°38'33.307 W 11,878.32 93.28 178.58 9,029.41 -4,513.56 3,469.27 5,956,002.61 667,709.78 70°17'9.294 N 148°38'33.269 W'i 11,909.00 93.62 180.90 9,027.56 -4,544.18 3,469.41 5,955,972.00 667,710.59 70°17'8.993 N 148°38'33.265 WI 11,938.39 93.59 183.26 9,025.71 -4,573.49 3,468.35 5,955,942.67 667,710.17 70°17'8.705 N 148°38'33.297 W' 11,968.57 92.82 186.94 9,024.02 -4,603.50 3,465.67 5,955,912.62 667,708.15 70°17'8.410 N 148°38'33.375 W 11,998.59 91.35 189.49 9,022.93 -4,633.19 3,461.38 5,955,882.84 667,704.51 70°17'8.118 N 148°38'33.500 W 12,028.62 90.77 193.39 9,022.37 -4,662.61 3,455.43 5,955,853.30 667,699.20 70°17'7.829 N 148°38'33.674 W 12,059.16 90.40 197.30 9,022.06 -4,692.05 3,447.35 5,955,823.69 667,691.76 70°17'7.539 N 148°38'33.910 W 12,088.88 88.71 196.56 9,022.29 -4,720.48 3,438.69 5,955,795.08 667,683.73 70°17'7.259 N 148°38'34.163 W 12,119.55 88.65 192.50 9,023.00 -4,750.16 3,431.00 5,955,765.24 667,676.69 70°17'6.968 N 148°38'34.387 W 12,150.03 89.63 188.25 9,023.46 -4,780.13 3,425.52 5,955,735.16 667,671.86 70°17'6.673 N 148°38'34.547 W' 12,178.37 89.60 183.58 9,023.65 -4,808.31 3,422.60 5,955,706.93 667,669.56 70°17'6.396 N 148°38'34.633 W 12,208.79 89.20 178.81 9,023.97 -4,838.71 3,421.96 5,955,676.52 667,669.59 70°17'6.097 N 148°38'34.652 W 12,238.76 90.09 174.63 9,024.15 -4,868.62 3,423.68 5,955,646.65 667,671.96 70°17'5.803 N 148°38'34.602 W 12,269.08 92.73 172.14 9,023.41 -4,898.73 3,427.17 5,955,616.63 667,676.10 70°17'5.506 N 148°38'34.501 W 12,303.00 91.32 167.34 9,022.21 -4,932.07 3,433.20 5,955,583.43 667,682.87 70°17'5.178 N 148°38'34.325 W'. 12,335.77 88.68 162.74 9,022.21 -4,963.72 3,441.66 5,955,551.98 667,692.01 70°17'4.867 N 148°38'34.079 W 12,370.75 89.88 157.70 9,022.65 -4,996.62 3,453.49 5,955,519.34 667,704.56 70°17'4.544 N 148°38'33.735 W' 12,400.56 90.55 155.10 9,022.54 -5,023.94 3,465.43 5,955,492.30 667,717.09 70°17'4.275 N 148°38'33.388 W 12,430.54 91.44 157.83 9,022.02 -5,051.42 3,477.39 5,955,465.09 667,729.65 70°17'4.005 N 148°38'33.040 W 12,461.54 88.47 160.81 9,022.04 -5,080.41 3,488.34 5,955,436.34 667,741.23 70°17'3.719 N 148°38'32.721 W 12,491.20 90.37 162.65 9,022.34 -5,108.57 3,497.64 5,955,408.39 667,751.13 70°17'3.442 N 148°38'32.451 W 12,525.01 88.90 166.78 9,022.56 -5,141.18 3,506.55 5,955,375.99 667,760.75 70°17'3.122 N 148°38'32.192 W 12,555.05 89.42 161.68 9,023.00 -5,170.08 3,514.71 5,955,347.28 667,769.54 70°17'2.837 N 148°38'31.954 W' 12,587.33 91.17 157.37 9,022.83 -5,200.31 3,526.00 5,955,317.30 667,781.49 70°17'2.540 N 148°38'31.626 W 12,615.18 92.42 154.71 9,021.96 -5,225.74 3,537.30 5,955,292.12 667,793.34 70°17'2.290 N 148°38'31.297 W 12,645.32 93.10 151.82 9,020.51 -5,252.63 3,550.84 5,955,265.54 667,807.47 70°17'2.025 N 148°38'30.903 W' 12,676.53 94.70 148.42 9,018.38 -5,279.62 3,566.35 5,955,238.90 667,823.56 70°17'1.760 N 148°38'30.451 W 12,696.11 94.30 145.96 9,016.85 -5,296.03 3,576.93 5,955,222.73 667,834.49 70°17'1.598 N 148°38'30.144 W 12,724.88 91.38 144.94 9,015.42 -5,319.69 3,593.22 5,955,199.43 667,851.30 70°17'1.366 N 148°38'29.669 W 12,777.32 89.91 138.90 9,014.83 -5,360.94 3,625.55 5,955,158.89 667,884.52 70°17'0.960 N 148°38'28.728 W 12,806.67 87.30 135.85 9,015.54 -5,382.53 3,645.41 5,955,137.75 667,904.85 70°17'0.747 N 148°38'28.150 W 12,838.43 87.42 133.80 9,017.01 -5,404.89 3,667.91 5,955,115.88 667,927.83 70°17'0.527 N 148°38'27.495 W 12,867.03 86.72 132.23 9,018.47 -5,424.38 3,688.80 5,955,096.86 667,949.13 70°17'0.335 N 148°38'26.887 W 9262011 11:03:16AM Page 3 COMPASS 2003.16 Build 73 BAKER HUGHES Survey Report-Geographic 0 by INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-10-Slot 10 Project: Prudhoe Bay TVD Reference: C-10A:@ 62.32ft(C-10A:) Site: PB C Pad MD Reference: C-10A:@ 62.32ft(C-10A:) Well: C-10 North Reference: True Wellbore: C-1 OB Survey Calculation Method: Minimum Curvature Design: C-1 OB Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-5 +El-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,897.24 89.08 130.91 9,019.58 -5,444.41 3,711.38 5,955,077.33 667,972.15 70°17'0.138 N 148°38'26.229 W 12,930.96 89.26 127.21 9,020.06 -5,465.65 3,737.56 5,955,056.66 667,998.78 70°16'59.929 N 148°38'25.467 W 12,955.76 88.74 124.71 9,020.50 -5,480.21 3,757.62 5,955,042.55 668,019.16 70°16'59.786 N 148°38'24.882 WI 12,987.75 89.45 121.81 9,021.00 -5,497.75 3,784.37 5,955,025.60 668,046.28 70°16'59.613 N 148°38'24.104 W 13,015.63 89.45 119.54 9,021.27 -5,511.97 3,808.34 5,955,011.90 668,070.56 70°16'59.473 N 148°38'23.406 W 13,045.55 90.15 117.09 9,021.38 -5,526.16 3,834.68 5,954,998.29 668,097.20 70°16'59.334 N 148°38'22.639 W 13,075.64 89.51 115.06 9,021.46 -5,539.39 3,861.71 5,954,985.66 668,124.50 70°16'59.204 N 148°38'21.851 W 13,105.68 88.96 112.00 9,021.87 -5,551.38 3,889.24 5,954,974.28 668,152.29 70°16'59.085 N 148°38'21.050 W 13,135.94 87.95 109.92 9,022.68 -5,562.20 3,917.49 5,954,964.08 668,180.77 70°16'58.979 N 148°38'20.227 W 13,167.40 88.83 107.24 9,023.57 -5,572.22 3,947.30 5,954,954.71 668,210.78 70°16'58.880 N 148°38'19.359 W 13,197.77 90.68 105.56 9,023.70 -5,580.79 3,976.43 5,954,946.78 668,240.09 70°16'58.796 N 148°38'18.510 W 13,227.15 91.88 102.42 9,023.04 -5,587.89 4,004.92 5,954,940.30 668,268.73 70°16'58.726 N 148°38'17.680 W 13,258.91 91.97 98.97 9,021.97 -5,593.78 4,036.11 5,954,935.09 668,300.04 70°16'58.668 N 148°38'16.772 W 13,284.54 89.23 96.29 9,021.70 -5,597.18 4,061.51 5,954,932.25 668,325.50 70°16'58.634 N 148°38'16.032 W 13,318.66 89.08 94.23 9,022.21 -5,600.31 4,095.48 5,954,929.86 668,359.53 70°16'58.603 N 148°38'15.043 W 13,345.92 89.79 91.96 9,022.48 -5,601.78 4,122.70 5,954,928.99 668,386.77 70°16'58.589 N 148°38'14.250 W 13,379.79 90.09 88.25 9,022.51 -5,601.84 4,156.56 5,954,929.66 668,420.63 70°16'58.588 N 148°38'13.264 W 13,410.21 91.38 87.01 9,022.12 -5,600.59 4,186.95 5,954,931.59 668,450.98 70°16'58.600 N 148°38'12.379 W 13,430.21 91.81 84.91 9,021.56 -5,599.18 4,206.89 5,954,933.43 668,470.89 70°16'58.614 N 148°38'11.798 W 13,450.67 92.52 84.06 9,020.79 -5,597.21 4,227.24 5,954,935.84 668,491.19 70°16'58.633 N 148°38'11.205 W 13,479.46 91.78 88.33 9,019.71 -5,595.30 4,255.94 5,954,938.37 668,519.84 70°16'58.652 N 148°38'10.369 W 13,509.76 90.31 90.67 9,019.16 -5,595.04 4,286.23 5,954,939.30 668,550.11 70°16'58.654 N 148°38'9.486 W 13,540.08 88.86 93.89 9,019.38 -5,596.25 4,316.52 5,954,938.75 668,580.42 70°16'58.642 N 148°38'8.604 W 13,569.98 88.34 96.69 9,020.11 -5,599.00 4,346.28 5,954,936.65 668,610.23 70°16'58.615 N 148°38'7.737 W 13,600.05 90.52 99.28 9,020.41 -5,603.18 4,376.06 5,954,933.12 668,640.08 70°16'58.573 N 148°38'6.870 W 13,629.71 88.41 103.03 9,020.68 -5,608.91 4,405.15 5,954,928.03 668,669.29 70°16'58.517 N 148°38'6.023 W 13,661.81 90.09 103.11 9,021.10 -5,616.17 4,436.41 5,954,921.45 668,700.71 70°16'58.445 N 148°38'5.112 W 13,690.00 91.50 100.86 9,020.71 -5,622.03 4,463.98 5,954,916.20 668,728.40 70°16'58.388 N 148°38'4.309 W 13,719.98 91.10 97.94 9,020.03 -5,626.92 4,493.55 5,954,911.96 668,758.06 70°16'58.339 N 148°38'3.448 W 13,750.34 91.32 95.29 9,019.39 -5,630.42 4,523.70 5,954,909.12 668,788.28 70°16'58.305 N 148°38'2.570 W 13,775.70 90.89 92.49 9,018.90 -5,632.14 4,548.99 5,954,907.95 668,813.60 70°16'58.288 N 148°38'1.833 W 13,800.24 90.80 89.53 9,018.54 -5,632.57 4,573.52 5,954,908.06 668,838.13 70°16'58.283 N 148°38'1.119 W 13,830.47 89.97 94.30 9,018.34 -5,633.58 4,603.73 5,954,907.71 668,868.35 70°16'58.273 N 148°38'0.239 W 13,858.89 89.94 97.35 9,018.36 -5,636.46 4,632.00 5,954,905.44 668,896.67 70°16'58.245 N 148°37'59.416 W 13,895.45 91.17 101.32 9,018.01 -5,642.39 4,668.06 5,954,900.30 668,932.86 70°16'58.186 N 148°37'58.365 W 13,922.72 93.07 103.94 9,017.00 -5,648.35 4,694.65 5,954,894.93 668,959.57 70°16'58.127 N 148°37'57.591 W 13,970.00 93.07 103.94 9,014.46 -5,659.72 4,740.47 5,954,884.56 669,005.62 70°16'58.015 N 148°37'56.256 W TD 9/26!2011 11:03:16AM Page 4 COMPASS 2003.16 Build 73 WELLHEAD= FMC JMD II FT _._.•ETY NOTES: WELL>70°@ 11153' ""4-1/2" ACTUATOR= BAKER CA O . CHROME TBG"""ORIG WELL&C-1 OA NOT KB. ELEV = 61.97' SHOWN""" BF. ELEV = 34.97' KOP= 3100' ' ' ' 2190' -4-1/2"HES X NIP, ID=3.813" Max Angle= 94°@ 11608' 30"INSULATED110' - - 2585' -9-5/8"DV PKR Datum MD= 10809' CONDUCTOR + Datum TVD= 8800'SS GAS LIFT MANDRELS ST MD TVD DEV TYPE V LV LATCH PORT DATE 4 3008 3008 6 MMG DOME RK 16 10/06/11 3 5533 5013 53 MMG SO RK 20 10/06/11 13-3/8 CSG,72#, L-80 BUTT, - 3707' 2 7876 6393 55 MMG DMY RK 0 10/28/05 ID= 12.347" 1 9792 7819 16 KGB2 DMY BK 0 10/28/05 Minimum ID =2.387" @ 11943' rL i- 8328' -9-5/8"X 7"BKR C-2 ZXP LTP w/TIEBACK SLV, ID=6.30" 3-3/16" X 2-7/8" XO -j r 8345' -9-5/8"X 7"BKR LNR HGR, ID=6.23" 9-5/8"MILLOUT WINDOW(C-10A)8505'-8522' 9-5/8"WHIPSTOCK(10/14/05) H 8506' I 9-5/8"CSG,47#, L-80 BUTT, - 8506' I r- I 10158' -14-1/2"HES X NIP, ID=3.813" ID=8.681" z 10178' -7"X 4-1/2"BKR S-3 PKR, ID=3.875" 1 r-1 10201' -4-1/2"HES X NIP, ID=3.813" • I 10220' -4-1/2"HES XN NIP, MILLED TO ID=3.813"(08/11/11) 10225' -7"X 5"BKR ZXP LTP w/TIEBACK SLV, ID=4.40" 4-1/2"TBG, 12.6#, 13CR-80 VAM TOP, -I 10233' I, 10233' -4-1/2"WLEG, ID=3.958" .0152 bpf, ID=3.958" 7 . 10243' -17"X 5"BKR HMC LNR HGR, ID=4.410" 10250' -1 5"X 4-1/2"XO, ID=3.950" 7"LNR,26#, L-80 BTC-M, H 10400' .0383 bpc, ID=6.276" 10825' -14-1/2"BKR KB LTP, ID=2.450" 3-1/2"LNR,9.3#, L-80 STL, -1 10897' ' 11 10845 110845' I-3.70"DEPLOYMENT SLV, ID=3.000" , .0087 bpf, ID=2.992" 4-1/2"WHIPSTOCK(09/12/11) H 11310' 3 IQz 4-1/2"LNR, 11.6#, L-80 IBT, - 11310' .0155 bpf, ID=4.00" % 10897' -3-1/2"X 3-3/16"XO, ID=2.800" PERFORATION SUMMARY REF LOG: ???ON??? 0. 4-1/2"MILLOUT WINDOW(C-10B) 11311'- 11320' ANGLE AT TOP PERF:89° @ 13000' i�!ii' Note: Refer to Production DB for historical perf data 3/`e. SIZE SPF INTERVAL Opn/Sqz DATE 11943' -3-3/16"LNR,6.2#, L-80 TCII, .0076 bpf,ID=2.80" 2" 6 13000- 13440 0 09/27/11 2" 6 13490- 13530 0 09/27/11 11943' -3-3/16"X 2-7/8"XO, ID=2.387" 2" 6 13580- 13610 0 09/27/11 2" 6 13630- 13650 0 09/27/11 2" 6 13760- 13790 0 09/27/11 2" 6 13820- 13870 0 09/27/11 2" 6 13900- 13940 0 09/27/11 7/ Z 8 PBTD H 13955' I •.. 2-7/8"LNR,6.16#, L-80 STL, .0058 bpf, ID=2.441" - 13965' t.. DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 08/10/79 N18E ORIGINAL COMPLETION 04/20/10 SWC/SV SET WRP(04/15/10) WELL: C-10B 03/24/90 Ni ES RWO 06/25/11 SWC/PJC PULL WRP/GLV C/O(06/20-23/1') PERMIT No: '2110920 10/29/05 N2ES SIDETRACK(C-10A) 08/14/11 PBS/PJC MILL XN(08/11/11) API No: 50-029-20371-02 10/01/11 N2ES SIDETRACK(C-10B) 10/06/11 JMD DRLG HO CORRECTIONS SEC 19,T11 N, R14E,886'FNL&1223'FEL 11/02/05 KSB/TLH GLV C/O 10/10/11 ?/JMD DRLG DRAFT CORRECTIONS 12/04/05 MJB/TLH DRLG DRAFT CORRECTIONS 10/13/11 SG/JMD GLV 0/0(10/06/11) BP Exploration(Alaska) 012- 2t 12.2t 27 I ter..■ BAKER HUGHES www.bakerhughes.com PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION (ALASKA), INC COUNTY NORTH SLOPE BOROUGH WELL NAME C-10B STATE ALASKA HELD PRUDHOE BAY UNIT DAIL 1/30/2012 THIS DISTRIBUTION LIST AUTHORIZED BY: Alfredo Martinez SO#4061800 Log CD Log CD Copies Copies Client / Partners Copies Copies Client/ Partners 2 Company BP EXPLORATION (ALASKA), INC Company Person PETROTECHNICAL DATA CENTER Person Address LR2-1 Address 900 E BENSON BLVD ANCHORAGE,AK 99508 1- 1 Company EXXON MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082 A HOUSTON,TX 77002 _ 1 1 Company STATE OF ALASKA-AOGCC Company Person CHRISTINE MAHNKEN Person Address 333 W.7TH AVE. Address SUITE 100 ANCHORAGE,AK 99501 Company Company Person Person Address Address Company Company Person Person Address Address Company Company Person Person Address Address Page 1 of 1 ,„Q,,:- , .t, ; : [L,. G [1 rA ' aI f SEAN PARNELL, GOVERNOR g) i _ 1- , :_,,. LA\ -,_ ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU C-10B BP Exploration (Alaska), Inc. Permit No: 211-092 Surface Location: 775' FNL, 1222' FEL, SEC. 19, Ti1 N, R14E, UM Bottomhole Location: 1144' FNL, 3505' FWL, SEC. 29, T11N, R14E, 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. Sincerely, 411 Daniel T. Seamount, Jr. Chair DATED this /0 day of August, 2011. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) R . ' STATE OF ALASKA �,,,/ ALAt_ OIL AND GAS CONSERVATION COME. ION AUG 9 . »1 fF- PERMIT TO DRILL 20 AAC 25.005 Alaska viii & rip 8115- (,�Ji�tmission la.Type of work: 1 b.Proposed Well Class: ®Development Oil 0 Service-Winj 0 Single Zone 1 c. Specify ii lilts(idb1%sed for: ❑ Drill ®Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed Gas 0 Gas Hydrates ❑ Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp 0 Shale Gas 2. Operator Name: 5.Bond: IN Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU C-10B 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 14008 TVD 8964'ss Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: 5,1° ADL 028305&028310 " 775'FNL, 1222'FEL, SEC. 19,T11N, R14E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 4582'FNL, 1666'FWL, SEC.20,T11N, R14E, UM September 1,2011 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1144'FNL,3505'FWL, SEC.29,T11N, R14E, UM 2560 30,000' - 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 62.32' feet 15.Distance to Nearest Well Open Surface: x- 664143 y-5960439 Zone- ASP4 GL Elevation above MSL: 32.55' feet to Same Pool: 1180' 16.Deviated Wells: Kickoff Depth: 11320 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 95 degrees Downhole: 3250 Surface: 2370 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD ND MD ND (including stage data) 4-1/8" 3-3/16^x tare" 6.2#/6.16#_ L-80 TC-II/STS 3158' 10850' 8828' 14008' 8964'ss 213 cu ft Class'G' ✓ 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth ND(ft): Junk(measured): 12360 9026 N/A 12274 9022 N/A Casing Length Size Cement Volume MD ND Conductor/Structural 110' 20"x 30" 12.9 cu vds Permafrost Concrete 110' 110' Surface 2666' 13-3/8" 4492 cu ft Arcticset 2666' 2666' Intermediate Production 8505' 9-5/8" 1589 cu ft Class'G'. 130 cu ft AS I 8505' 6743' • Liner 2072' 7" 197 cu ft Class'G' 8328'- 10400' , 6642'-8403' Liner 2135' 4-1/2" 310 cu ft Class'G' 10225'- 12360' 8235'-9026' Perforation Depth MD(ft): 10915'-12260' Perforation Depth ND(ft): 8881'-9022' 20.Attachments: 0 Property Plat ® BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis IN Diverter Sketch 0 Seabed Report ®Drilling Fluid Program 12:120 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the f/ oini• ' ue a.: correct. Contact Zach Sayers,564-5790 Printed Name Joh• Mc lend/ / Title Engineering Team Leader p Prepared By Name/Number: Signature 1_/ Phone 564-4711 Date !' irk Elizabeth Barker,564-5674 Commission Use Only Permit To D API Number: Permit Approval ate' See cover letter for Number: new 50-029-20371-02-00 I � 11 other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales:,�I� Other: 3500 Ise- 130PlpeS1 _ Samples Req'd: ❑ es �No Mud Log Req'd: 0 Yes LrJ No 1 car / eSF H2S Measures: ®Yes 0 No Directional Survey Req'd: IB'Yes 0 No z S-00 P 3i, Ann rn. C - ) K / O® // APPROVED BY THE COMMISSION G Date ,COMMISSIONER Form 10-40 Revised /2009 This permit is valid •r 24 months from the date of ap royal(20 AAC 25.005(g)) Submit In Duplicate ORIGINAL 8•S•% 'i-,�� To: Alaska Oil & Gas Conservation Commission N From: Zach Sayers bp 510.CTD Engineer Date: August 3, 2011 Re: C-10B Permit to Drill Request Approval is requested for a permit to drill a CTD sidetrack from well C-10A. CTD Drill and Complete C-10B program: Riq Start Date: September 1st, 2011 Pre-Rig Work: (scheduled to begin August 8th, 2011) 1. F MIT- IA to 3,000 psi, MIT-OA to 2,000 psi) Passed 06/23/11 2. W Cycle LDS; PPPOT- T to 5,000 psi Passed 06/22/11 3. C Mill XN nipple at 10,220' to 3.80" 4. C Dummy WS Drift to 11,400'. 5. V PT MV, SV, WV. Bleed wellhead pressures down to zero. 6. 0 Bleed production flow and GL lines down to zero and blind flange 7. 0 Remove wellhouse, level pad 8. V Set TWC (Cameron 6-3/8" Type J profile) 24 hrs prior to rig arrival st KA" Rig Work: (scheduled to begin September 1st, 2011) 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. 2. Set 4-1/2" KB Packer Whipstock at 11,300' MD 3. Mill 3.80" window at 11,300' and 10' of rathole. Swap the well to Power-Pro SF. 4. Drill Lateral: 4.125" OH, 2,708' (12 deg/100 planned) with resistivity 5. Run 3-3/16" x 2-7/8" L-80 liner leaving TOL at 10,850' MD. 6. Pump primary cement leaving IOC at_l 0,850' MD, 38 bbls of 15.8 ppg liner cmt planned 7. Cleanout liner and run MCNL/GR/CCL log. LI propose (;( Nom' 8. Test liner lap to 2,400 psi. ec . 17(D 9. Perforate liner per asset instructions (-800') 10.Set 4-'/2" liner top packer, and test to 2,400 psi 11.Freeze protect well, set BPV, RDMO Post-Rig Work: 1. Re-install wellhouse, flowline and pull BPV. 2. Generic GLV's 3. Test separator Mud Program: • Well kill: 8.4 ppg brine. • Milling/drilling: 8.6 ppg PowerVis for milling window and 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: 4.125" Casing Program: • 3-3/16", 6.2#, L-80, TC-II 10,850' MD — 12,050' MD • • 2-7/8", 6.16#, L-80, STL Solid Liner 12,050' MD — 14,008' MD • A minimum of 38 bbls of 15.8 ppg cement will be used for liner cementing. (TOC 10,850' 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 3,500 psi. Directional • See attached directional plan. Maximum planned hole angle is 94°. ✓ • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property — 30,000'. • Distance to nearest well within pool — 1,180' to 07-37. Logging • MWD directional, Gamma Ray and Resistivity will be run over all of the open hole section. • Cased hole GR/CCL/MCNL logs will be run. Anti-Collision Failures • C-12A center to center distance: 690' status: P&A • C-12PB1 center to center distance: 273' status: Plugback ✓ • C-12B center to center distance: 258' status: Producer Hazards • The maximum recorded H2S level on C Pad was 38 ppm on well C-33A on 4/06/2011. • Lost circulation risk is considered Moderate for the fault block drilled in C-10B. Reservoir Pressure • The reservoir pressure on C-10B is expected to be 3,250 psi at 8,800' TVDSS. (7.1 ppg equivalent). • Maximum expected surface pressure with gas (0.10 psi/ft) to surface is 2,370 psi. Zach Sayers CTD Engineer CC: Well File Sondra Stewman/Terrie Hubble TREE= 6"CIW WELLHEAD= 13-5/8"5M FMC Si 'NOTES: ***4-1/2"CHROME TBG"** ACTUATOR= OTIS — KB.ELEV= 61.97' BF.ELEV= 34.97' KOP= 3100' ' ' 2190' —14-1/2"HES X NIP,ID=3.813" --- -------------------- - Max Angle= 92 @ 11309' Datum MD= 11546' Datum TVD= 8800'SS =--I 2585' I—9-5/8"DV 13-3/8"CSG,72#,L-80,ID=12.347" H 2666' , GAS LIFT MANDRELS N ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3008 3008 6 MMG DMY RK 0 06/23/11 3 5533 5013 53 MMG DMY RK 0 06/23/11 2 7876 6393 55 MMG DMY RK 0 10/28/05 Minimum ID = 3.725" @ 10220' 1 9792 7820 16 KGB2 DMY BK 0 10/28/05 4-1/2" HES XN NIPPLE 13--z.........T., 8328' I�9-5/8"X 7"BKR ZXP LTP w/TIEBACK SLV,ID=6.30" 8345' H - X 7"BKR HMC LNR HNGR,ID=6.23" MILLOUT 9-5/8"WINDOW TOP OF WHIPSTOCK —I 8506' 8505'-8522' 6" 10158' —I4-1/2"HES X NIP,ID=3.813" 10178' —7"x 4-1/2"BKR S-3 PKR, ID=3.875" 9-5/8"EZSV --f 8527' TOP OF CEMENT(09/24/05) — —8527' 10201' —4-1/2"HES X NIP, ID=3.813" I �111�1111�� ;� 10220' —14-1/2"HES XN NIP, ID=3.725" •111111" , 1111111 10225' —7"X 5"BKR ZXP LTP w/ _.111111 — (1111111111 1/4\-1'111111 9-5/8"CSG,47#,N-80,ID=8.681" --I 10831' 11111111111 111111 10233' I—4-1/2"WLEG, ID=3.958" x111111/14 , — ELMD IT NOT LOGGED ��i l��a^itjI 10243' 7"X 5"BKR HMC LNR •[►�1�1�1�•� HNGR,ID=4.410" 111 ► X1111111111'= 10250' 15"X 4-1/2"XO. 1,1111111/1% ID=3.950" 11111111111` 7"LNR,29#,L-80, ID=6.184" —) 12060' Witictitt 4-1/2"TBG, 12.64,13CR80 TCII,.0152 bpf,ID=3.958" — 10233' PERFORATION SUMMARY ` REF LOG: LWD SPERRY SUN ON 10/24/05 7"LNR,26#,L-80 BTC-M, -J 10400' ANGLE AT TOP PERF: 39°@ 10915' .0383 bpf,ID=6.276" Note:Refer to Production DB for historical perf data ` SIZE SPF INTERVAL Opn/Sqz DATE 3-3/8" 6 10915- 10925 0 04/18/10 2-1/2" 4 11500- 12260 0 10/26/05 PBTD - 12274' :40'0. , 11. 4-1/2"LNR, 12.6#, L-80 1ST, .0152 bpf. ID=3.958" —I 12360' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 08/10/79 ORIGINAL COMPLETION 04/20/10 JMF/SV ADD PERF(04/18/10) WELL: C-10A 03/24/90 RWO 06/25/11 SWC/PJC PULL WRP/GLV C/O(6/20-23/11 PERMIT No:'2051370 10/29/05 N2ES SIDETRACK(C-10A) API No: 50-029-20371-01 11/02/05 KSB/TLH GLV C/O 775'SNL&1222'WEL, Sec. 19,T11N, R14E 12/04/05 MJA/TLH DRLG DRAFT CORRECTIONS 04/20/10 SWC/SV SET WRP(04/15/10) BP Exploration(Alaska) TREE= 6"CM/ WELLHEAD= 13-5/8"5M FMC C-1 0 B SA (NOTES: ***4-1/2"CHROME TBG*** ACTUATOR= OTIS KB.ELEV= 61.97' Proposed CTD Sidetrack BF.ELEV= 34.97' KOP= 3100' Max Angle= 92 @ 11309' I I 2190' —14-1/2"HES X NIP, ID=3.813" Datum MD= 11546' Datum TVD= 8800'SS — 1 2585' --19-5/8"DV 13-3/8"CSG,72#,L-80,10=12.347" —j 2666' , GAS LIFT MANDRELS IIP ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3008 3008 6 MMG DMY RK 0 06/23/11 3 5533 5013 53 MMG DMY RK 0 06/23/11 2 7876 6393 55 MMG DMY RK 0 10/28/05 Minimum ID = 3.725" @ 10220' 1 9792 7820 16 KGB2 DMY BK 0 10/28/05 4-1/2" HES XN NIPPLE 8328' -19-5/8"X 7"BKR ZXP LTP w/TIEBACK SLV,ID=6.30" 8345' H9-5/8"X 7"BKR HMC LNR HNGR,ID=6.23" MILLOUT 9-5/8"WINDOW 8505'-8522' TOP OF WHIPSTOCK — 8506' 10158' -14-1/2"HES X NIP,ID=3.813" 10178' -7"x 4-1/2"BKR S-3 PKR,ID=3.875" 9-5/8"EZSV -I 8527' TOP OF CEMENT(09/24!05) -1 -8527' 10201' —4-1/2"HES X NIP,ID=3.813" i� 10220' H4-1/2"HES XN NIP,ID=3.725" ,, 10225' -7"X 5"BKR ZXP LTP w/ 41i , TIEBACK SLV,ID=4.40" 10233' -4-1/2"WLEG,ID=3.958" 1 10243' -I 7"X 5"BKR HMC LNR HNGR,ID=4.410" 10250' -5"X 4-1/2"X0, ID=3.950" 3.7" deployment sleeve /4.5" KB LTP TOL/TOC -10,850' , 2-7/8" 4.7# L-80 liner 'a.,' aybe slotted or cmtd 4-1/2"TBG, 12.6#, 13CR80 TCII,.0152 bpf,ID=3.958" — 10233'1 , 7"LNR,26#,L-80 BTC-M, -I 10400' 7e4' //4 PERFORATION SUMMARY .0383 bpf, ID=6.276" X0415,plL REF LOG: LWD SPERRY SUN ON 10/24/05 ANGLE AT TOP PERF: 39°@ 10915' 3-3/16" X 2-7/8" XO @ --12,050' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 4.5" whipstock @ 11,300' 3-3/8" 6 10915-10925 0 04/18/10 w/ 93 degrees 2-1/2" 4 11500-12260 0 10/26/05 �G PBTD 12274' ,Oov. 4-1/2"LNR, 12.64,L-80 IBT,.0152 bpf, ID=3.958" 12360' D @ -14,008' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 08/10/79 ORIGINAL COMPLETION 04/20/10 JMF/SV ADD PERF(04/18/10) WELL: C-10A 03/24/90 RWO 06/25/11 SWC/PJC PULL WRP/GLV C/O(6/20-23/11 PERMIT No: 2051370 10/29/05 N2ES SIDETRACK(C-10A) API No: 50-029-20371-01 11/02/05 KSB/TLH GLV C/O 775'SNL&1222'WEL, Sec. 19,T11N,R14E 12/04/05 MJA/TLH DRLG DRAFT CORRECTIONS , 04/20/10 SWC/SV SET WRP(04/15/10) BP Exploration (Alaska) co a N. 'O Z Z M O 0 CO CO M O M O M etili N N r b O O O O N Q_ o^ n rat 0a CNI Q o o O U CL m U O V 2 0 c m = 7 Q_ N U N In o > c? m U m Z > m ._ U a) Z J 0 U Q J .. O N v 7 (n> O) d d U map a)E c 0) O V 7 ci y 13 a) C a) C C c '0 r c U F- w 2 D D `• c o •a) > J J 0 a) a) 7 O 2o +. c P m- a) co to 2 JJL c� a) Lo c C « O F 72um c a E N c 3 7 '0 d c m 0Aa 00) c .- ` « fa $ 0 LL n V ix d> . CO E L L C N O O C73 ) Ci '' Z a) a) co O r 0 a N- C >, a0 O O _ � J Z (/� N N 407 0 0 0 0) 0 = h N o O a) 0 0) c0 M cf.M0 a0 Q ,ri v a) O v a Q CO CI. cam. a o) 0 Q 0 a r CO c 0. o CL .o 0 0 3 O CL C CD U m m + 6 a 3 d N i= + N m s wLO E c 1615 N CL c 0, y c 0 O co G L c L 7. Z W CO y C Z W '0 9- c 0 Z.... •O Z > Q 03 0 W « N o = CO m N d a an 3 0. a) -.- aft r Nin E a c co LL m N Z ,_ 0 to U. C) m °- W� U = = = L Q >' 0 00 0. ; � a) CO C13 0 o0O O O .- as 0 0 ~ O N O Cl) a Q ° aQL C O a E 'O a) U O coO co Z 0 00 a ` E Z c — — 0 U M ^ m r CDcsi QV U m d m _ m Ymm m0 a) as a i -,e 2 OM co al- = x0000 7Z Q i' Z + . o 2m � '- `- c c Za. a6UU 'c , • N at) c co E c e c N v r; orb c .. _ � 7 c H c y c a) o c 0 Cr; 4= O aami .. 2 a) o COoN° a° ° o°. c a c C ? c a E = = ) = o) H )o cTp m 4.1 F+ C'�«d d y co d lab « « O 0 Y) N 0 d a) a) 7 a) a) Z OaU)330 a 2c.52 ' 0 inu`. a a. 3 M c < > > .. oo C) /� O O co O O 0 sr sr O QI C) U) n lifi,. O O O O O O O O to ' u] • O a O N M M M M N N N N 00 N (A (A W W (A Q) O d7 CO CO CO W 0) an m 0 CO o VF. Ch O O N 1n CO In O CD (D N In Q) CD M CO a In CO CO O M M CO D1 N N N N 0 Qa sr O O 0) 0) a) 6 ti N .- co CO CD N co Lo CD N If) CD N N N O r N Z s = V " N N N M IO IC) CO CD r O QO f0 In u) u7 u1 u) u) u) In If) u) 6 u) In IL) C.) O V N O ; aa N _) j M z 0 O sr O O O O O O O O O O O co J 7 Q 0 n 0 0 0 0 0 0 0 0 0 0 0 0 0 I O (O O) r r r r r r r r r r Ni N E co (0 co Q E d O N mO 3.0 2 JO d N- N- co CO N o n st IO In 0) CO N- U .a (O u) N- N N- sr CO N 7- r Co r s- 0 C O O 0) CO U) Ni If) Ni M 0N N N 6 ) sr .c (N sr U) co sr CO sr r 00 0 0 W co sr sr sr sr In In In In CO CD CD N r CO a) C. r ( n n r N- N- r N- r- (` a,el, 2 w= co co CO CO CO ID O CO CO CD (0 CD 0 CD CO CO o co co O (O CO CO CO CO O O CO C asd O W c -. C p C)ei c0 a 8 C C r V N O M co co N sr In CO U) O O 0) 0 O (D w R O r sr co V CO e— r- sr co Co co co IO o w d d 0 y co CO (D (D In N 0) O) N N sr O 0 "' >. (6 C O Co r O Co N O 0) O n CO n CD CD 0) l0 rt t Q) a .N w. C sr sr V' sr sr sr co M N s- s- CO O CO LI i' 5 c7 CO CO CO CO CO (D (D (O (D (D CD CO u) u) p 0Ci O 3 N U C O Lt-.= 010 In In u1 IO u7 u) u7 u) u) u) If) 0 0 J F z in C C + o D) 0) 0) 0) 0) o) 0) 0) D) 0) 0) 0) o) C O LI C z u) LO ui 6 tri u1 u7 Ui Ui u) u) IC') IC) ICY 'C 0 0 u. m 4 ` :° — u) .62- co + N n O M a0 CO IO M N M N N M 0 V O O D n sr sr CD M 00) If) M N O N N 0 IX d ,, O CT CO sr M O N M CO 0) CIV2 2 Co 0) N CO O In O •71' sr CD CO sr a NN N M M M sr 01N 01 CO 3 g . M M M M M M M M M M M M M M I- 0. 'o COCL U (I) 2 C0 r- r 0) co co O N co sr V a coM O coM cou) cou) v N- coM r- 0) (DO (.) (� OD 0 + M sr 0) O O h O M CD IO M co y E N M sr sr co CD sr N 03030301 is l0 LL 0 0 0 0 0 N M CO sr u) CD CO z y + o co - v s sr sr sr sr I 1 sr sr v ,t a 0 CI Z F 022 CO T.. N. CO 0) O sr (` co M CD 0) sr CO 0) Co V sr O O CO N. 0) O O . (- N N- CD IC) IO N- In IO u) In N. Cn n 0) 0) 0) n r 0) N. 0) N. 0) 0) 0) CO (I) rn m rn rn rn rn rn rn CD CD rn rn CM CD C0 co co 0 0 00 0 Co 0 0 0 0 0 c p m In sr sr sr CO N N N O) CD IO Co O D N( 0 CO N CA 0 CO CO CO N. CD In N h. (j O I N M 0 Ni N a1 N M u) N- W O 6 0 .N- NI CV CV � N) N) N) U) CO CO N- CO 01 El 0— FLL Z.cti- U) N 0 o 0 J CO VI 3 )- 0 N M 0 7- n N CD 0) CD n 0 Q CO 0 0 a 0) M N 7 IO sr N r sr IO CO 0 IO d O O CO n - Cl),-- OO O O Q) O W M sr UT co G N• W W Co 0) O) J0 0) 0) O) O O) Co Co CO o) 0) 0) C O N O 0... = (0 -o CO O E In N O C L. O Q O a GL ~ O O t- CC 1:13 j 0 O o co o 2 m � of z a a 0 0 0 01 0 0 0 D O sr o 0) 0 0 0 0)0 0 0 0 0 0 0 0 0 0 0 Q (n o 0 0 0 0 0 0 0 O O 0 O O 0 IO III W a 0 c ` N- o o w o 0 d c 0 0 06 0 0 0 Q r 0 N 0 M 0 M sr co O 0) 0 0 0 0) Mem O a- I!) N 3 N M a M .O M sr sr sr 0 O CD r li CO 0) Cy `�� c Fo aoaG 13- 7- p � � � rn =W . aLL fir. 1- ' Y � W a'- coIn g m'- co o d .. ) m cS •�w' ad7 o E" O d d 0 Z co o. co 0 Ica I a ! cn co Clii O O O O O O 0 0 O co O O O O O O O 0 0 O O O O O O O O O O O co O O O O O O O O O O O O O O O O O O O O O O O O O O O O O co W (A O) 6) O) a) C) (A a) (P O) O) a) C) O) a) CO (A a) m LI 0 A o CO F -M O O N O M M CD V' O CO CO UI: V' N VU V' CD NCD M N fN CO CD N O ON O 4 O N OO M D) CO CO N- 00 I1,..O O O D) U N O O CD c N u) u6O O O in O O m cD ca (0 m m m m co LO co- m U V c 0 ; _ n. N €5 0, N Z O O O O 0 0 O O O O O O O O O O O O O O J O 7 < O O O O O O O O O O O O O O O O O 0 0 O O �CpC� V ) N N N N N NCI N N N N N N Ni Ni N Ni Ni N N In V�,V Q 7 7 y O a) coi o a) C 2 _i o r. Gt O C) IN O CD CO CO CO CD CD N M CO O 0 O r N U .8 O N M CO V' CO a- M O 7 co a- a- N- CO C 0 M r (D M 00 CD I� N N CO I- N r n a) U t co N. O O O CD CO N- IN CO 0 CO IN CO O V. (O M CO '.. 01 CO CO CD CO CD CD CD CD (D CD h IN IN IN CO CD C) 0 0 '1. U) C n n n r n n n n h IN r: N- N: r N- I` r M 0 a0 N 2 = CO (D CO CD (O CO CD CD CD CO CO CD CD CD CD (D CD CD CD CD IXC €6— O CD CD CD O 0 CD CD O O CD CO O CD (D (D O CD CD (0 c O W R L) ++ ca P.:a v_ v d 3 d C 1 C.1 O N- V' N V' O O CO O O N- C7 V' O ) CO CD Q C eD w N 0 IN O (D CO IN IN CD N CO O O fD CO N CO M O O 0 O ! y a) U y O C0 CO O M e- O N OO O) M O (D N W N C) a) W >* m p) co O co co co co D) o) (D CO M V' Cr) CO v v o R IX L4/ ac 00 CO r N. CO (D O in 4 co co N N N v' O O O O 0 a r Z IS t — O O ui ui tri ui ui tri u) O O id lei u-i ui O O (D O ui O Q p 3 N r= U) U Cr) (D O U CD (C) Ir) O Cr) O Cr) U) U (P) (() O U (U J 2 (n O p a) a) D) a) a) 01o) o) CO C) C) D) C7) COD) o) 0) D) o) a) Z Ir) ui ui O O O O inin (ri u1 in (ri (ri in in. CCi U1 O O 1N V' N N CO N N:- N- Ct d) M V' a- l-- O IN M W 0. O M 0 O OD I� COCON t0 M a) CO O CO (A NCI 0 M O) N O O O a) O O O N- O O CO CO CD a) CD h ^ co N O N (.11 V' V' IN N 0) CO O CD IN O 1.V C7 V; V; V' V V' V' V_ d• V' V' V' V' O O O CO r n N CO CO ?� - M M CO CO M CO M M M M M M M M M M M M M M < H I1C! d 'o dM U _ _ W coC' M O) O) IN CO CO O) N N CD V- r.... 0 Q„ O (O a) O CO V' N- T M V; r t` O N N W O a) V- CO O CO CO 4 co M O N O M O N. rM M CO O V' O) N N co O N M N 0 N O N N O CO O IN N V IN IN N p) CD (D IN IN CO O) CO 0 O N N M CO V- V' V' d• U) CO Mv 1 1 v 1 v r u� u) ui ui (n u; u? u-i u) (r) u-. i u? a Z— N N N N N N N N N N N N N N N N N N N V' (D CD CO CD CD (D CD (O (D CO CO CO CO (O (D (O CO CO CO V' M M M M M M M M M M M M M M CO CO M M M O CO CO O CO CO O O D O O CC (n QCO CO O) CO CO 0) 0) O r W 0) 0) T W W) C) 0) 0) d) U), 0 eo 0 0 co 00 0 0 oD 0D 0 0D oD 0 co- 0 o06 o co o F — W W CO M 00 co IN CO CO CO CO 00 CO 00 CO CO CO IN CO CO N N O CD O N a) N O O N O N OO O N a) CO IN CO O O M N- O O O n O N M V' a. CO I . V N M N CO D) CO CO IN CD IN CO IN 0 CD O V' V' N N N Qm - a- a- a- r r a- a- 1- a- a- a- a- a- a- a- a- Y (/) 0 0 0 0 0 0 0 0 0 0 0 O 0 o 0 0 0 0 0 0 Q M 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 . . M O O O O O O6 O OO O O O O O O O O O to Q) O) Q) d1 Q1 D1 O O) O co D) W O O) 4) D) a) a1 CO co U_ T M N C (.) • m "O C6 C L, E Q O Cl- .7 G C C 0CO 03 0 0 O O 2 m Z 0 0 U C) 6 O co O co O M O M O O CO O M O O O M O M O T O (C) O O O O O O O O CO O O O O O O 0 O 0 C¢ . 411 W ` O N- O n a N- O N O O n O r O O O r O n O O O N 0 O O N- O r O O N O IN O O 0 N 0 O 0 N.: Mfg I 7 O O N N co co V' O O CD CO IN CO O) 01 O O ("1 %a filo w c NN N N a N N N N N N NiN N a NiNNNH C) M ,, CO aj brig*W Li; - N (,, - - o ame r msI-. o 'a0m m d CV o Z 0a. Cl) 33o 0 03 C) (i�il� /+ O O O O O O O 0 0 O O O O O N. 0 0 0 0 0 0 0 0 0 0 0 0 0 o a O 0 0 0 0 0 0 0 0 0 0 0 0 0 co rn rn . co rn a) rn rn rn rn rn rn rn m Ao (D 0 F Ci 0 0 N CO M O 00 O CO CO CO CO 00 CO O N Cr) (4. N O N O O M N r O N 0) r a CO O O O N N T a0 O (O O LU N O O CO CO 0) N N (f) M CA O N CD (D i(„) N. CO CO CO Cn 0 O O N N CO CO O O U)Z.'CO CO CO (O CD co. r N r r N N N N 0 O V d O 5 .� ma _• j- N M CO Z O O O O O co O O O O O O O O CO ' to 7 < O O O O O O O CCD(4 c4 csi O 0 0 0 N @) E co D /�1 0 N O a Q0,m o _ W O N .0 2 J O 0) 4 CO 0 N C') M 0) N- N 0) O (O C) ,II M N .4. (O Cr) O N (O 0 N N. N C 0 CO r) O CO CO 4 O) O O) O 0) LU O M L_ CM N N M Cl O LU CD CO Q) O O L. N C (O a0 00 CO co 00 00 CO Cb 00 O CO W ai- m 2 .�' t0 (D CO CD CD CD CO CD CO CD CO CO CO CO C •, CD CO CD CD CD CO CD O CD CO CD CO CD CO d p W d A 0 .5 .p cV 0 3 C N M O 0) co 0) 0 CD O O O CO CD p ` d M N N N 1- CO CO 00 0 N N O h A Lri NOCD) N• w QT pN coO CO N N CD 1' M N N N O) 0) 0) 0) 0) CO 0) 0) 0) 0) 0) 0) 0) CO V 0 t air L' ? 7 V' V V' .4 . 4- V 4- V 0 O 3 CO t+= O in in O O O O O O O O O O O p J > ° Z U) 0 p 0) 0) 0) 0)) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) Z u5 LL) LL) a LL) (n u7 ((i LL'i O (C1 ui ((i Ln F... 0 0. O CON NM CO O CO '7 N O 0) O O C') N O O CO O 0) M 0 M O N O N CD CO O N4 4 O 00 ^ O O 0) O O CO V' N V' 1- V �).i. O) O O O N CO CO •f O O CO N. N U/ 7 1 M 4 4- a V 4 4- 4- < I- 0. = CL 0 WN O CO LU l._ O O) N O MCO N O O O M CO O n CA N CO CC) 0) O N O O) CD D) O V_ Nn M (O 0) O O O O O CD CO O V p) O O O O O O O O CO CO O CO CD CO RI (f) O Cl) O u;) u1 LL) tri Cn Cn LL; LU Ct; u;) (n a Z N N N N N N N N N N N N N N CD CO CO O CD CD CD CD CD (D CD CD Co CD C) M M M M M M M M M M M M M co co co co co CD CO CD (D (0 CD CD CO CD (/) CA C) CA C) 0) 0) C) 0) 0) 0) 0) CA W 0) 0 . LU LU a0 LU LU a0 LU Cb W CA o 00 00 00 co co O LU h N co co co co N N h CO N- CO N N N- n CD O O N O) 0) 0) 0) O M 00 V M O O M 4 O W O OO) co co O) O O 0) CD 00 0) 0 r r r r r r Q J O O O O O O O O O O O O O O Q 0 O O O O O O O O O O O O O O O O O O 0) O O O O 0) O O O co Q) Q) Q) W O 0) 07 D) Q) 07 0) Q) d) Q1 U T M Tc V m "O CO C :.. Q O d 0.co L s m m Z• d d U U U o M o M o 0 CO o O CO O O O o Q T CO O O O O O O O O O O O O O (() O N O N O O n O O r O O O 00 O O O O M O O LO O O n O O O 0 MOM 3 N N CO CO v O O CD N N CO O O O C.1 MINA T U1 0 M M ^ M M co M M M a M co' M Q M co 0 [7) C .. �, p ' r r r r r r r r r r N r r r H co Z c.)a` 'u)33a a 3 W t ill WW -- -- _ — - U � o 8 -- �Ng� 2ea - n NI r. 1. O N Ca i 0. \. Z — .. " 8 I_ apbp 1 N 1pp` P - I N 8 r33 r .. . 9 0 p eno W v O t - m a0 U o kin o 0 3 u L,.7:4rl .... .-_E'--' 0 0 v u. -, I ` + 0 v o m'ao f F U U I� .. w 4.. m o `8s1 o U ` ^ .�i h 1a+ 1w 1mm1$d mm" _ U N o ___ y 0.' ffO c o I O A0. O N • pp -_ __ --- i m 1 en p -__ _. `yb' en en 15 g 0 ,� co _ - s 8 d a etlc O O CO U o n tay g o _-en _. u �O O O N w I - N6 .... V 0 - e. 2 i p p p /ON S N 8 0 p 0 p Nr-M lv v v �, mP ( uO )(+)4pb (=)gbS c _ sc J LIJ 03 CL O g of U !I pt- i-c.:. c.) 11 w F z _ N ��`y''`J Q Oo ..‹............0 < �Y o .-N nm - .. v N F0wv,nmAmm "'a'�'m who i-75' i CA a ,n roO mPO rv�O mNq mm0ry� ICI g .8 E 3. , , . , 8. m \ - ! m GGV,rAt2u mmm,Nmmn m o m b YV f pv gopOSgpOg gp V1 1 ONa�w4�mpNrgn n8�ngo8 `0. 0woOU 2, az ;;_ E nnnnn S8o ppg .....................„......„..........„..„0.2 P 2 g dNam g'� �o� NNNN N N NNNNNNN p Qa. V- . Q3N w ILer • w3 L ig m,�o yy m m N m m m m m m m m m m m m m 88 a Cp ,ONO4 W m,, NN m N gN NN m W N,moN2 Gji N, ,h' m.mm ood mtNC O� �i` Z� {ugyp NNNm ��Nmm�m� `Q1 =0,a r V a,o 0 0 0 0 0 0 0 0 o o 0 o o P -A al O g O W o g g g W W W m m o rn m of 0 0 0 3o p A 66 c'g88888882,`�,`�mm m m m m m m m8 O 0 0 8 6 O 1 N N ry ,� `041010, NN N, �NNM nm,i m4 m O, T T C 410 S�N ma,nm Amwo�Nm e' ° ° °� 1. ` (u/V 08) L0Cbsa Ie39an an J —4jr N W_ re ll ega 46 W U =Igo P. m ;97d § Z i 8 r.,VI E �h QQ Q��6 u co .el0 in3i .YR S Z zZ•c gy U 1... N o N 1-'''''l v 0 (4 ten 0 a CT '3".' p V� i�WW�_ -r _. p I 1 V a° pr," . gp0 _`�?y -06 Com- -- 8 on 6 , 0 N U r � � .. w tiao m O ..• ei 3 a" CC C1 I!! . Ni,o g ti iii" .., eoo c� :° n 2,7,-p , :§ t r 1 + N yO $ n O U 11 g 612 q2 te):16. wo oo itoS5 co -d 6 G^ I XEo 0 Vf, r oOO �N NIl 3ci ` fi�0 •.‹,...w9‘° '000 a AZO 8 Q 0 \ , ,,-,_- ..f.4 N r U -adiall ID , g § 8 8 0 $ 8 2F 8 8 8 M 8 § 8 8 0_ § ; 8 T 8 0 0 7 e $ ? V R 1 Y R ';' � r `4 m 8 a T 4 `4 8 8 `4 4 4 eoi,„ 0103 OSI) (+)4uoN/(-)4anosa • "r W g U. f LL P +O Alum .,,,A t�li'n, rpEri_�iumi,o Hem OY 111111g a.. a 1s.e88$8$ 88”88sso8os m +41 A� �� s_m 3 o NNS m� N r o ..1 .e2.F. 9 s 9 ,-51 s a ce • 42SSARSgPIN Uosnom o . 3r- 19 919 111 9!! 91,:-53 919 a,3 -ss s! $ss 992_5 s 940 ss $ . AiAAAAA g §5�W4- a a toom dildigiis$0100I° s ��.IPliiMiliiIIIJ I TIMI -/$ilii ��pp IWIMIlkkgSUW,651,�A„W, II 01211111 M 1§§1 111 ii �ignrni,vp°ia ai,n nm,,,,�v�ro > D .,7, L_7___ > z 9 3393434333x$ asaaaoaoaooaseg 9999a9�93B38939 Ia33993 $3's$'s's � ' po 3 � 0^ $eN�Wn Ste ' '•++1111114+,+1{ 1919 +9+19+ t4+449444144 ♦9414 4.4+449 *91191'+4 ', 43 444 44�4WW '�`SM r'-v�w u o a 3$ Iq e�mam^ mvagagazgaggagigi 6 maNO O 2 0.7.4's"s"sss8sssmmm®m o o <o�, Lo2� 1 $�N, mplmmammmm<"rvmac�_ .-.N 2 € o z 0. II E ill Ig WIgr navgS8 SSSSSSS 8 a e > y •9 maIOmmSmaSSmwSmw'mwwaRm p z is 3'tOu ` }� Si,Sgogg SS �v.Mvmi,vmi,umi,vmi,r lvmi,umivmi,8. s`ts€g R'prRRRmFIMR;e 9w(nway- Sp ym u 5 and A-Nmvmm,mag:=VVV V00Rv F 4 U See, o ♦e `o $ U 0 R .00 f o 111111111111111/ _ 243 mLL r 12 < m c y ,,,-2a. O 0 ~.0o ~• HU , N m r ¢ 150' N navO �o� N `r , O IMW r(O NM NV tNOAfil 2♦ Q . 0 O m N t` c _ oNI Q + m-0 mo . . 74//// 1 ,-, ;, ..°.i3m Q ."12.,in mo c m N - U rn c o ~ , n _ill . N S 0 ....01. N a a BM BPPASSPORT BAKER NUGHIS Travelling Cylinder Report INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-10-Slot 10 Project: Prudhoe Bay TVD Reference: C-10A:©62.32ft(C-10A:) Reference Site: PB C Pad MD Reference: C-10A:@ 62.32ft(C-10A:) Site Error: 0.00ft North Reference: True Reference Well: C-10 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore C-10B Database: EDM.16-ANC Prod-WH24P Reference Design: C-10B plan 3 Offset TVD Reference: Offset Datum Reference C-10B plan 3 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of referE Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 11,277.90 to 14,008.00ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,598.07ft Error Surface: Elliptical Conic Survey Tool Program Date 8/3/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 100.40 8,500.40 GYD-CT-CMS(C-10) GYD-CT-CMS Gyrodata cont.casing m/s 8,505.00 11,277.90 C-10A IIFR(C-10A) MWD+IFR+MS MWD+IFR+Multi Station 11,277.90 14,007.98 C-10B plan 3(C-10B) MWD MWD-Standard 10,402.25 8,405.32 7" 7.000 8.500 14,008.00 9,025.94 2-7/8" 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 B Pad 8-28-B-28-8-28 13,650.00 11,400.00 906.64 774.45 140.94 Pass-Major Risk PB C Pad C-06-C-06B-C-06B 12,250.00 12,100.00 860.60 697.87 167.41 Pass-Major Risk C-09_DIMS-C-09-C-09 Out of range C-09_DIMS-C-09A-C-09A Out of range C-10-C-10-C-10 12,541.66 11,825.00 369.41 106.46 263.87 Pass-Major Risk C-10-C-10A-C-10A 11,300.00 11,300.00 0.00 0.79 -0.71 FAIL-Major Risk C-10_DIMS-C-10-C-10 Out of range C-10_DIMS-C-10A-C-10A Out of range C-11_DIMS-C-11 -C-11 Out of range C-11_DIMS-C-11A-C-11A Out of range C-12-C-12-C-12 13,950.00 12,105.00 1,494.90 1,247.39 270.89 Pass-Major Risk C-12-C-12A-C-12A 13,550.00 13,100.00 539.91 1,234.43 -690.43 FAIL-Major Risk C-12-C-12APB1 -C-12APB1 13,890.96 12,621.00 844.72 1,126.26 -273.61 FAIL-Major Risk C-12-C-12B-C-12B 11,350.00 13,004.00 991.60 1,250.21 -258.51 FAIL-Major Risk C-13-C-13-C-13 Out of range C-20-C-20B-C-20B Out of range C-23-C-23A-C-23A Out of range C-27-C-27B-C-27B 12,625.00 11,947.00 1,353.61 945.58 409.47 Pass-Major Risk C-29-C-29-C-29 14,008.00 10,225.00 1,369.51 1,047.23 800.81 Pass-Major Risk C-29A-C-29A-C-29A 14,008.00 10,225.00 1,369.51 1,047.23 800.81 Pass-Major Risk C-33_DIMS-C-33-C-33 Out of range C-33_DIMS-C-33A-C-33A Out of range C-41 C-41 -C-41 Out of range C-41 -C-41A-C-41A Out of range C-41 -C-41A-Plan#7d Out of range C-41 -C-41APB1 -C-41APB1 Out of range CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 8/3/2011 9:45:36AM Page 2 of 19 COMPASS 2003.16 Build 73 • .Iii --- rt • il Y O .i U i,._ i,. • 1 I v a _ I _: , 0 _ _ N N - - N E I. I t i i= 6 O' x. c ml to J I: • N MIM 1111: I. 1 r ~ t •--►fijtiiii. a Uu / ▪ Y A G CO J g 't V, a u o m I I C • . t _—_-.7-5.7=- = ® 111 Oa V 111 pi rs a 0 Q • -' •I . I 11.1111111 ' III' , ,�1 tYO = ! 11 U L J ry Q — U _I m 9U11 a1 f1A eq N s N >111 '1 .• I C1 gf f m 111 U 0 a J , �I O in IMO II • = a 0 'T /� r m _VQ Q _ v Q f C w • �•� 10 Ill li C 7 ❑ V Z ` 2 w ,- x IMI 0. O co y n m y VNMV. Um g. �J• it f ¢ x O f J• • UU If r 2 u vm cr • n : 0. • O Y • CC 0 U Inz ` 2 2 1a f . O. 2 V ik! 7 x W UJ0Y C m 111 111 CI 7 i a II I r•• 3 S \III v o 111 • t L U N IIII W ry, • • - O (7 I1f r.1 1 F CIs f T, HIM • I i U .... • o f N p U. . c Z .INMI I II UIle It zV • m 3 41 O. IX U1 U O O O Z p U 1LL • =a • U N C ili I 0 12 m • H j d 3 T▪ j -4 Q:r z 1,11 0 n 1i -11 U U _- U a U 3 U a s E ✓ H m N ea o QinN LL aWi 7 11• 1111 0 n o Z m IMI II in II .J �i U a a X x •n 'Natural ResourcesZ,and Administration Sysi Pag l pf 1 ,Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources find Alaska DNR Case Summary File Type: ADL File Number. 28310 4 Printable Case File Summa See Township,Range,Section and Acreage? Yes No ( New Search LAS Menu !Case Abstract I Cas_a Detail I Land Abstract File: ADL 28310 Search for Status Plat Uodates� As of 08/05/2011 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND 1 1ANAGER-ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL&GAS LEASE COMP DNR Up*: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 08/19/1965 Total Acres: 2491.000 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: 011N Range: 014E Section: 29 Section Acres:640 Search Plats Meridian: U Township: 01IN Range: 014E Section: 30 Section Acres:604 Meridian: U Township: 011N Range: 014E Section: 31 Section Acres:607 Meridian: U Township: 011N Range: 014E Section: 32 Section Acres:640 Legal Description 05-28-1965 ***SALE NOTICE LEGAL DESCRIPTION*** x . C14-131 11N 14E UM 29,30,31,32 2491.00 U-3- 7 , 1 End of Case Summary Last updated on 08/05/2011. Not sure who to contact?Have a question about DNR?Visit the Public Information Center. Report technical problems with this page to the Webmaster. Site optimized for Netscape 7, IE 6 or above. This site also requires that all COOKIES must be accepted. State of Alaska Natural Resources LAS Home Copyright Privacy System Status laska. ov/projects/las/Case_Stammary.cfm?FileType=ADL&FileNumber=28310••• 8/5/2011 http://dnr.a g Alaska Department of Natural Resources Land Administration System Page 1 of 1 Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources r find Alaska DNR Case Summary File Type: ADL File Number. 28305 16 Printable Case File Summary See Township,Range,Section and Acreage? 9 Yes No [ New Search LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28305 Search for Status Plat Updates As of 08/05/2011 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/19/1965 Total Acres: 2480.000 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: O11N Range: 014E Section: 17 Section Acres:640 Search Plats Meridian: U Township: 011N Range: 014E Section: 18 Section Acres:599 Meridian: U Township: 01 IN Range: 014E Section: 19 Section Acres:601 Meridian: U Township: 011N Range: 014E Section: 20 Section Acres:640 Legal Description 05-28-1965***SALE NOTICE LEGAL DESCRIPTION*** C14-12611N 14E UM 17,18,19,20 2480.00 U-3- 7 End of Case Summary Last updated on 08105/2011. Not sure who to contact?Have a question about DNR?Visit the Public Information Center. Report technical problems with this page to the Webmaster. Site optimized for Netscape 7, IE 6 or above. This site also requires that all COOKIES must be accepted. State of Alaska Natural Resources LAS Home Copyright Privacy System Status http://dnr.alaska.gov/projects/las/Case_Summary.cfm?FileType=ADL&FileNumber--28305... 8/5/2011 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME .81� /0,2f PTD# 2»09? ✓ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: ,Z '4' f/OC-0:4/ POOL: 7',el'44b6 /S AY©/G Circle Appropriate Letter I 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 (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well productionor production roduction 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: 1/11/2008 n C o r 'a co n a 3 I D m n cn , o cn -0 3 (n a r 3m co CD rn - 'D 3. o w CO CO o' o rn N.co c\ 0 01 0 co 01 0 o co 71 O N a) N N Ni 0 3 O 3 0 O g O FD. O Fr; �_ CD - - - 0 W CO CO CO 0) 0) 0) 0) 0) CO Ni Ni Ni Ni Ni Ni Ni Ni Ni N CO Co -1 0) 01 A 0) Ni -, 0 n CO C3 -I 0) CJ, A 0) Ni - CD CO W V CO CP A CO Ni -, O (0 03 0) (n A 0) Ni -, O --.1 "30 rn 11) 00) (nom 5, * nooaoo . D > 0000 nn -ovgnv -o00 � cngg * cam - Z , 0 o O CD CD N CD 0Es 0 3• p p M. 0. a v a COc o - a) CD D -0 -0 n c 7 0 CD o X o -1 -1 m 0 0 0 m v (D w 0 a v a '� m m m < a m s �' w o 0 _ 3 _ _ _ 3 co r N iii - C • C O * < < 0 C - 0 r. O 0 O o o Q. n CD 0 0 3 0 CO _, m d m a o 0 0 n a 0 0 ° ° ° ° m ? 0 n° 0 c m < m —I 7 0 C) CI) Cl) 3 C7 n, CD n C CD CD CD C, N N 0 0 C 3 n N Cl) 0 3 CD 3 N 0 0 3 c, 0 - cn ° n n 0 n a• CD .=: = = D- o fl- O, 0 D N CU 3 N 7 3 a N 3 Q ° o n N - 'o .0 N N a CO• < CD CD -. a a o' O' o• N ,a - O a a n 7 N d r TI 0 " < a 0 ° 'd O v 0 C. Cn T. 3 C� .0 :0 5 0 0 CD Cp -o -0 O N N N O 0 3 7 7 0 cn a N * a _. `< (0 6 o Cl) co 0 0 v m -0 cn m -s s a a s 0 0 -°0 -°a Cl) 3 D 0 N 0 3 C •' (j) O O 3 N a cD ,_ CO a - 0 co o -o ° A 0 -0 c c CD 6 CD 0 0- 'O CD 0 -i m e 0 ° a o co 0 3 0 3 a 0 O ° _ 0 0 o C a 0 3 0 0 a a -0 m ° < a a °` a 0 a 0 0 m- O» N c 'D -a -. 0, 0434%, c 0 _, 0 5. n - < n 0 m 7 n -a 0 0 m 0 * ° m 0 0O m 0 �G m a m 0 0 v w (. m Z o ° 7 `< ,3.� O o cin O (CD 3- q, N (0 0 CD 3 0 CU a n 0 °' a • (D N CD 0, 0) 0- 3 d' 3 c0 _ 'O 'o co - v CD -O 3 c C CU Q 7- 0 Cr 0 0 'o o N D 3 0 v m o m F c 3 ° -c. d m 0 0 0 o Q c, 0 0 0 3 r xi E- v' 3 0 0 0 °1 ° c c ° ' 0 0 0 Cr a 'D c CNn N A N O< °" N a� CD 0 0 ' Q -o n c 3 0 O °• ° .N. O cD CU 0 CL (� 7 N Cr) U o' < v 0 0 co , mCr > > 0 , v — .0. ° 0 w a o • c a 0 0 i 'n m- N -0 0 ? x W 90 o c -{ '0 c 0 o m 3 3 a = 3 3 j D N 0 0 3 co .N-. N -0 a < 0 G. CD y, N CD - O 7.1 O ] Ft; 7 3 CD O 0 o CO CD j 0 C 0 0 tll a 7 CD 0 a j o a m CO N c C > a w o - m m 3 o c0 n CO m ' m' v CD CO CCD � b n D U) a x ° o a 0 m a 0 a m o �' o ca N 0 < 7 N ^' N ^' 7 C O N O. N �1 0 3 CD C 0 -D OL* a o 3 0 < 0 w Cr 3 C 0 w ° m ,00 0 3 CD Co Cn n 0 O Q3 0 0 0' -0 a 0 a a fa) 0• A c0 0 0 m o a Q -0 0 0- D o n 1] a) cn clo C 3 `< C ' c c 0, —n - 0 c 2 ' 0 x CO/, O O CD -0 0 N ° (D N N N 0 �_ N 3 o C0 D rn -...s... O cn < CD `� p 6 CD 3 CD S Z O 0 Z. 0 a a O. 7 F- 5 0 -N.. O. A O O co 0 co 7 _ _ `C N ,-. 0 4t C,, 0 3' O ` 3 cn `G 13 irk;d v m " IllAtO 0 0 N ,3 O O mco 3 3 N O p (n _n % 0) Om cn ZD' cn .< Q Z Z Z Z Z Z -< -< -< -< -< -< Z -< -< -< -< -< ZZZZ ZZZ -< -< -< -< -< -< -< -< -< -< -< -< ZZ , > > > > 0 > CD CD CD CD CD CD D CD CD CD CD D > > > > > > > D D CD CD CD CD CD 0 0 CD CD 0 > > CO CO CI) CI) N N N 0 0 Cn CI) N N CI) N 0 0 N 0 N N N N 0 O o m o < 0 a K I �7 (n0 co Ni m '.m al Ni D N o 0 0) (5 CD 3 C C O N CI, C Z < x cn x - x. 0 3 a v v a 0 o a o 0 CD C CD 0 Z 07 < 7 O N S] 3 .C)-. COD N n n N CD m 3 0n SD (D O v 0 Ni v v a a o v w ° o y w 0 3 Cl) I V O, 3 7 - CD - n N Cn N 3 Cl) 0 CD a O 0 0 to o n 3 Co a a CD a `< D o a m N o g 0 cn (0 c° a 4t 0 m D 0 , n . 3 co 0) Cl) D i3_] N CD N 9- 3 N 0 c CD N 0 0 < cn D cn 7_ U, `< CO 0 CO .Z1 O 3 = c W 0 0 CD Cl) (0 C) 0 - ° CD C CO CO O N n CD CD CD (D a) 3 7 3 n D W 2 N. I I d 0 N N cn 0 G) _ N N' n n 0 p M 7 0 m 00 N 0 o a p o a) D co 5 coo N -0 0 0 3 D D n D< 0 -0 m ) O - 0 v 3 0 N' n ° CD 0 z 0 0 o Cl O O ton. 0 0 7 -1 Cr) 3 c o v n C CD 10 -0 o rn - , I y m y o o n ? - 0 G 0 0' a m CCDD 3 _< ^' CD N O -, CD CD 3 A CD O 0 CO), 3 C N co N co O0_ N 0 O `< o CO CD o cr co CD (P cn "0 O fn co 0 CDN (0 CO0 0_ Cl) (D N a 3 3 a 0 3 Cl) C a 0 D n O 7 p * O n j 7 3=' < a co = O D 7 Ni CO ES Ni 0 0 C 3 0 7 co N N c c CD= --,w S- 0 O m C CD o cQ 0 p