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211-172
7. 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 18-15C Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 211-172 50-029-21755-03-00 11734 Conductor Surface Intermediate Liner Liner 8679 80 2646 8146 6614 3348 11695 20" 13-3/8" 9-5/8" 7" 3-1/2" x 3-1/4" x 2-7/8" 8678 31 - 111 31 - 2677 29 - 8175 2410 - 9024 8382 - 11730 31 - 111 31 - 2677 29 - 7808 2410 - 8480 7968 - 8679 Unknown 470 2670 4760 7020 10530 None 1490 5380 6870 8160 10160 8558 - 11690 4-1/2" 12.6# 13Cr80, L-80 27 - 8598 8108 - 8678 Structural 4-1/2" Baker S3 Packer 8536, 8090 8376, 8536 7963, 8090 Bo York Operations Manager David Bjork david.bjork@hilcorp.com 907-564-4672 PRUDHOE BAY 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 0028321 27 - 8139 N/A N/A 210 239 10618 49705 6464 4544 400 370 782 978 N/A 13b. Pools active after work:Prudhoe Oil 4-1/2" Baker S3 Packer 8376, 7963 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 No SSSV Installed By Grace Christianson at 3:16 pm, Jun 24, 2025 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2025.06.24 14:14:36 - 08'00' Bo York (1248) JJL 6/30/25 RBDMS JSB 062725 ACTIVITY DATE SUMMARY 6/6/2025 ***WELL S/I ON ARRIVAL*** RIG UP POLLARD UNIT 63 ***WSR CONT. ON 06-07-2025*** 6/7/2025 ***WSR CONT. FROM 06-06-2025*** RAN 33' x 2'' DMY GUN (max OD 2.16'') TO 9096' SLM ***WELL LEFT S/I ON DEPARTURE*** 6/12/2025 ***WELL SI ON ARRIVAL*** (CBL) MIRU AK ELINE FUNCTION WIRELINE VALVES. PT 250/2500PSI LOG CORRELATED TO HALLIBURTON MEMORY COIL FLAG DATED 05-OCT- 2023 RUN CBL TO 9100 AND LOG UP TO 8000' TOC: 8890' LAY DOWN FOR THE NIGHT. NIGHT CAP ON WLVS. ***JOB CONTINUED ON13-JUNE-2025*** 6/13/2025 ***JOB CONTINUED FROM 12-JUNE-2025***(ADD PERF) PT 250/2500PSI LOG CORRELATED TO MEMORY CALIPER DATED5-OCT-2023 SHOOT 28' 2" HSD. 6 SPF 60 DEG. INTERVAL: 8592-8620' CCL STOP: 8581.7' CCL-TS: 10.3'. PRESSURE WENT FROM 300-->750PSI WHILE POOH SHOOT 30' 2" HSD. 6 SPF 60 DEG. INTERVAL: 8558-8588' CCL STOP: 8549.7' CCL-TS: 8.3'. PRESSURE JUMPED FROM 1350-->1400 AFTER SHOOTING. WELL LEFT SI ON DEPARTURE. RDMO ***JOB COMPLETE*** Daily Report of Well Operations PBU 18-15C Nolan Vlahovich Hilcorp Alaska, LLC Geotech 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 564-4558 E-mail: nolan.vlahovich@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Date: 7/15/2025 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20250715 Well API #PTD #Log Date Log Company Log Type AOGCC E-Set# KBU 32-06 50133206580000 216137 7/1/2025 AK E-LINE PPROF BCU 14B 50133205390200 222057 6/20/2025 AK E-LINE Perf BR 03-87 50733204370000 166052 6/15/2025 AK E-LINE Perf BRU 211-35 50283201890000 223050 6/2/2025 AK E-LINE Perf BRU 213-26 50283201920000 223069 6/23/2025 AK E-LINE Perf BRU 221-24 50283202020000 225027 6/4/2025 AK E-LINE Perf BRU 221-24 50283202020000 225027 6/22/2025 AK E-LINE Perf BRU 221-24 50283202020000 225027 6/12/2025 AK E-LINE PPROF BRU 241-23 50283201910000 223061 6/10/2025 AK E-LINE Cement/Perf BRU 241-23 50283201910000 223061 6/19/2025 AK E-LINE CIBP BRU 241-23 50283201910000 223061 6/21/2025 AK E-LINE Perf BRU 241-23 50283201910000 223061 6/4/2025 AK E-LINE PlugPerf KBU 43-07Y 50133206250000 214019 6/17/2025 AK E-LINE Perf KU 41-08 50133207170000 224005 6/24/2025 AK E-LINE Plug Perf LIS L5-26 50029220790000 190110 6/21/2025 AK E-LINE Patch MRU M-25 50733203910000 187086 6/17/2025 AK E-LINE CIBP PBU 15-14A 50029206820100 204222 6/3/2025 BAKER SPN PBU 18-15C 50029217550300 211172 6/12/2025 AK E-LINE CBL/Perf PBU F-38B 50029220930300 225029 6/12/2025 BAKER MRPM SRU 241-33B 50133206960000 221053 5/25/2025 AK E-LINE CIBP Please include current contact information if different from above. T40659 T40660 T40661 T40662 T40663 T40664 T40664 T40664 T40665 T40665 T40665 T40665 T40666 T40667 T40668 T40669 T40670 T40671 T40672 T40673 PBU 18-15C 50029217550300 211172 6/12/2025 AK E-LINE CBL/Perf Gavin Gluyas Digitally signed by Gavin Gluyas Date: 2025.07.16 10:52:24 -08'00' 7. 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 18-15C Extended Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 211-172 50-029-21755-03-00 11734 Conductor Surface Intermediate Production Liner 8679 80 2646 8146 6604 3348 11695 20" 13-3/8" 9-5/8" 7" 3-1/2" x 3-1/4" x 2-7/8" 8678 31 - 111 31 - 2677 29 - 8175 2418 - 9024 8382 - 11730 31 - 111 31 - 2677 29 - 7808 2418 - 8480 7968 - 8679 Unknown 470 2670 4760 7020 10530 None 1490 5380 6870 8160 10160 9090 - 11690 4-1/2" 12.6# 13Cr80, L-80 27 - 8598 8535 - 8678 Structural 4-1/2" BKR S-3 Packer 8376, 7963 8376, 8536 7963, 8090 Bo York Area Operations Manager David Bjork david.bjork@hilcorp.com 907-564-4672 PRUDHOE BAY 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 0028321 27 - 8139 N/A N/A 431 480 16291 39563 2424 977 350 350 840 1160 323-480 13b. Pools active after work:Prudhoe Oil 4-1/2" BKR S-3 Packer 8536, 8090 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 No SSSV Installed By Grace Christianson at 10:01 am, Nov 08, 2023 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2023.11.08 09:52:54 - 09'00' Bo York (1248) RBDMS JSB 110823 WCB 3-14-2024 DSR-11/15/23 ACTIVITY DATE SUMMARY 10/4/2023 CTU 9 - 1.75" CT - .156" WT - 15,962' - Job Scope = Caliper Log, Ext. Add Perf x 2, Set NS Patch Start Travel to 18-15 @ 0400. SB for Wells Support. Start RU @ 0700. Drift down 2.25" for guns and log tools. Kill well w/225 bbls KCL w/SL. POOH from 10350', no issues with drift. MU 2.75" drift. RIH while pumping to keep the hole full and tag the XO 9358' ctmd 9365 MD. POOH keeping the hole full. ***Job Continued 10/5/23*** 10/5/2023 CTU 9 - 1.75" CT - .156" WT - 15,962' - Job Scope = Caliper Log, Ext. Add Perf x 2, Set NS Patch ***Continued from 10/4/23*** MU NS MHA and HES memory caliper. Stop at 10,100' ctmd. Log up 50 fpm. Flag coil 9560 ctmd. Continue to log up 50 fpm. Stop at 8200'. Continie to POOH while keeping the hole full. Good Log Data, +21' Correction. OE Confirmed. FP F/L w/75 bbls 60/40. Caliper Log Data sent to town for evaluation. PT MHA and Swivel. Confirm good liquid barrier, 6 bbl/hour losses, Safety Joint Drill, PU 17 HES 2" MaxF Guns and RIH. Shoot holes, 9638' - 9984'. POOH, Pump Coil Displacement. ***Job Continued on 10/6/23*** 10/6/2023 CTU 9 - 1.75" CT - .156" WT - 15,962' - Job Scope = Caliper Log, Ext. Add Perf x 2, Set NS Patch ***Continued from 10/5/23*** Continue in hole with HES 2" MaxF Guns, correlate to the flag to top shot Shoot holes, 9400' - 9522'. RIH with Lower NS Patch Assembly. Tag with patch @ 9095'. Patch is NOGO. POOH to PU mill assembly. RIH ***Job Continued 10/7/23*** 10/7/2023 CTU 9 - 1.75" CT - .156" WT - 15,962' - Job Scope = Caliper Log, Ext. Add Perf x 2, Set NS Patch ***Continued from 10/6/23*** RIH w/ YJ milling assembly w/ 2.75" mill and string reamer. Tag 9110' CTM. PUH and start milling. No Progress, 7 stalls. POOH. Mill Gauge worn considerably. Some considerable wear on mill face as well. PU Parabolic mill and string reamer. Drop stabilizer. Both D331 mil and string reamer are 2.74" GO / 2.73" NOGO. Mill for 2 hours, no progress. Possible Liner collapsed/damage at 9110'. POOH. No wear on the mill or string reamer. Load the well 120 bbls diesel. Blow the reel down. RDMO. *** Patch Job Incomplete, will return with new plan later*** 10/8/2023 UWP Worley well support RD hardline 10/9/2023 BOL for Rate Daily Report of Well Operations PBU 18-15C Shoot holes, 9638' - 9984'. Shoot holes, 9400' - 9522'. 7. If perforating: 1. Type of Request: 2. Operator Name: 3. Address: 4. Current Well Class:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Property Designation (Lease Number):10. Field: Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown What Regulation or Conservation Order governs well spacing in thes pool? Will perfs require a spacing exception due to property boundaries?Yes No 11. Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): PRESENT WELL CONDITION SUMMARY Perforation Depth MD (ft): Perforation Depth TVD (ft):Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type:Packers and SSSV MD (ft) and TVD (ft): Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 12. Attachments: 14. Estimated Date for Commencing Operations: 13. Well Class after proposed work: 15. Well Status after proposed work: 16. Verbal Approval: 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approcal. Proposal Summary Wellbore schematic BOP SketchDetailed Operations Program OIL GAS WINJ WAG GINJ WDSPL GSTOR Op Shutdown Suspended SPLUG Abandoned ServiceDevelopmentStratigraphicExploratory Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: AOGCC USE ONLY Commission Representative: Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number: Location ClearanceMechanical Integrity TestBOP TestPlug Integrity Other Conditions of Approval: Post Initial Injection MIT Req'd?Yes No Subsequent Form Required: Approved By:Date: APPROVED BY THE AOGCCCOMMISSIONER PBU 18-15C Extended Perforating Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 211-172 50-029-21755-03-00 ADL 0028321 11734 Conductor Surface Intermediate Production Liner 8679 80 2646 8146 6604 3348 11695 20" 13-3/8" 9-5/8" 7" 3-1/2" x 3-1/4" x 2-7/8" 8678 31 - 111 31 - 2677 29 - 8175 2418 - 9024 8382 - 11730 2487 31 - 112 31 - 2677 29 - 7808 2418 - 8480 7968 - 8679 unknown (2) 470 2670 4760 7020 10530 none 1490 5380 6870 8160 10160 9116 - 11690 4-1/2" 12.6# 13Cr80 , L-80 27 - 8471 , 8489 - 85988558 - 8678 Structural 4-1/2" BKR S-3 No SSSV 8376 7963 Date: Bo York Operations Manager Dave Bjork David.Bjork@hilcorp.com 907.564.4545 PRUDHOE BAY 9/15/23 Current Pools: PRUDHOE OIL Proposed Pools: PRUDHOE OIL Suspension Expiration Date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Comm. Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 06/2023 Approved application is valid for 12 months from the date of approval.Submit PDF to aogcc.permitting@alaska.gov & Patch Perfs / By Grace Christianson at 11:05 am, Aug 25, 2023 323-480 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2023.08.24 12:00:42 -08'00' CO 341J SFD * Total BHA length below coiled tubing connector not to exceed 500' MGR30AUG23 10-404 SFD 9/6/2023 Perforate DSR-8/28/23 2487 *&: 09/07/23 Brett W. Huber, Sr. Digitally signed by Brett W. Huber, Sr. Date: 2023.09.07 10:26:46 -08'00' RBDMS JSB 090823 Add Perf Procedure 18-15C PTD:211-172 Well Name:18-15C Add Perf and patch API Number:50-029-21755-03 Current Status:Offline Uncompetitive Rig:CTU Estimated Start Date:09/ /2023 Estimated Duration:2.5 days Regulatory Contact:Carrie Janowski Permit to Drill Number:211-172 First Call Engineer:David Bjork (907) 440-0331 (c) Second Call Engineer: AFE Number:232-00697 Cost / IOR Current Bottom Hole Pressure:3,367 psi @ 8,800’ TVD 7.4 PPGE Max. Anticipated Surface Pressure:2,487psi (Based on 0.1 psi/ft. gas gradient) Last SI WHP: 930psi (Taken on 12/16/2021 DHD) Min ID:2.37” ID – crossover @ 9,365’MD Max Angle:93 Deg @ 11,371’ Reference Log: PDLC GR 27-Apr 2017 Brief Well Summary: August 2012 CST targeting Z1A sands. GCWI breakthrough in late 2012. Well loaded up and would not flow naturally by June 2014. In-situ APF's were shot November 2014. Objective: The objective of this procedure is to add two intervals of Z1A perfs (9,400’- 9,522’ and 9,638’ – 9,984’) and then patch over the Z2B perfs. Procedure: Coiled Tubing Notes: x Due to the necessary open hole deployment of Extended Perforating jobs, 24-hour crew and WSS coverage is required. x Note: The well will be killed and monitored before making up the initial perfs guns. 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 and spot ancillary equipment. 2. After MU MHA and pull testing the CTC, tag-up on the CT stripper to ensure BHA cannot pull through the brass upon POOH with guns. 3. Bullhead 200 bbls of KWF, 8.4 ppg 1% KCl or 8.5 ppg down the tubing to the formation. (This step can be performed any time prior to open-hole deployment of the perf guns. Timing of the well kill is at the discretion of the WSS.) a. Wellbore volume to top perf = 150.1 bbls b. 4-1/2” Tubing – 8,382’ X .0152bpf = 128 bbls c. 3-1/2” Liner - 983’ X .0087bpf = 8.6 bbls d. 2-7/8” Liner – 2,325’ X .0058bpf = 13.5 bbls 4. MU and RIH with drift BHA to resemble 1.75” dmy gun. Run past 10300’ctmd and POOH. MU and RIH with logging tools including memory caliper and log OOH (caliper is to identify upper perf interval from 9,090-9095’ and 9110-9115’ for Z2B patch). 5. POOH and confirm good data. 15 2,487psi Add Perf Procedure 18-15C PTD:211-172 6. Freeze protect tubing as needed. 7. At surface, prepare for deployment of TCP guns. 8. Confirm well is dead. Bleed any pressure off to return tank. Kill well w/KWF, 8.4 ppg 1% KCl or 8.5 ppg as needed. Maintain continuous hole fill taking returns to tank until lubricator connection is reestablished. Fluids man-watch must be performed while deploying perf guns to ensure the well remains killed and there is no excess flow. 9.Pickup 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. 10. Break lubricator connection at QTS and begin makeup of TCP gunsand blanksperschedule below. Fluids man-watch must be performed while deploying perf guns to ensure the well remains killed and there is no excess flow. 18-15C Addperf Schedule *HES 1.75” Geo Razor guns were used to estimate for this job. 1.91” gun swell 11. MU lubricator and RIH withperf gun and tie-in to coil flag correlation. Pickup and perforate interval per Perf Schedule above. POOH. a. Note any tubing pressure change in WSR. 12. After perforating, PUH to top of liner or into tubing tail to ensure debris doesn’t fall in on the guns and stick the BHA. Confirm well is dead and re-kill if necessary before pulling to surface. 13. Pump pipe displacement while POOH. Stop at surface to reconfirm well dead and hole full. 14. Review well control steps with crew prior to breaking lubricator connection and commencing breakdown of TCP gun string. Standing orders flow chart included with this sundry request. Ensure safety joint and TIW valve assembly are on-hand before breaking off lubricator to LD gun BHA. 15. RIH with lower patch packer and set below perfs at ~ 9,135ft. POOH. 16. RIH with upper packer assembly and spacer pipe (~75ft OAL). Sting into lower packer and set upper. 17. RBIH to 8,000ft and swap the wellbore to dead crude or diesel ~ 120bbls. 18. RDMO CTU. 19. RTP. Attachments: 1. Current Wellbore 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. Mini Log Perf Interval Perf Length Gun Length Weight of Gun (lbs) 9,400-9,522’ 122’122’560lbs (4.6ppf) 9,638-9,984’346’346’1,591lbs (4.6ppf) * Total BHA length not to exceed 500'. May require 2 runs. - mgr Add Perf Procedure 18-15C PTD:211-172 7. Tie In Log/Perf Sheet 8. Sundry Change Form Add Perf Procedure 18-15C PTD:211-172 Current Wellbore Schematic Add Perf Procedure 18-15C PTD:211-172 Proposed Schematic Add Perf Procedure 18-15C PTD:211-172 Coiled Tubing BOPs Add Perf Procedure 18-15C PTD:211-172 Standing Orders for Open Hole Well Control during Perf Gun Deployment Add Perf Procedure 18-15C PTD:211-172 Equipment Layout Diagram Add Perf Procedure 18-15C PTD:211-172 18-15C Mini Log Add Perf Procedure 18-15C PTD:211-172 Add Perf Procedure 18-15C PTD:211-172 18-15C Tie-In Log Perf Interval 1 Add Perf Procedure 18-15C PTD:211-172 Add Perf Procedure 18-15C PTD:211-172 Changes to Approved Sundry Procedure Date: Subject: Sundry #: Any modifications to an approved sundry will be documented and approved below. Changes to an approved sundry will be communicated to the AOGCC by the “first call” engineer. AOGCC written approval of the change is required before implementing the change. Step Page Date Procedure Change HAK Prepared By (Initials) HAK Approve d By (Initials) AOGCC Written Approval Received (Person and Date) Approval: Operations Manager Date Prepared: Operations Engineer Date • STATE OF ALASKA • ALASKA OIL AND GAS CONSERVATION COMMISSION 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 0 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:Pull Straddle Patch l3 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 211-172 3. Address: P.O.Box 196612 Anchorage, Development p Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-21755-03-00 7. Property Designation(Lease Number): ADL 0028321 8. Well Name and Number: PRUDHOE BAY UNIT 18-15C 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: R ECEIVED Total Depth: measured 11734 feet Plugs measured feet true vertical 8679 feet Junk measured 9085/9130 feet APR 0 5 2011 Effective Depth: measured 2104 feet Packer measured See Attachment feet true vertical 2104 feet Packer true vertical See Attachment feet I I Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"91.5#H-40 31 -111 31 -111 1490 470 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate 8146 9-5/8"47#L-80 29-8175 29-7808 6870 4760 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 9110-9115 feet feet 10450-11150 feet 11370-11690 feet True vertical depth: 8553-8557 feet feet 8691-8684 feet 8681-8678 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): MAY ll Treatment descriptions including volumes used and final pressure: Sc,NNED MAY 5 2.0 7 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 221 20340 2259 920 460 Subsequent to operation: Shut-In 1190 0 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations I3 Exploratory ❑ Development RI Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil WI Gas 0 WDSPL 0 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 ��� ` Phone +1 907 564 4424 Date yls /1 Form 10-404 Revised 5/2015 VTL 5-11°i I�fr16'4gDMS Lv APR 6 2017 Submit Original Only • • Packers and SSV's Attachment PRUDHOE BAY UNIT 18-15C SW Name Type MD TVD Depscription 18-15C PACKER 2417.76 2417.58 7" Baker ZXP Top Packer 18-15C PACKER 8030.79 7698.93 7" Baker H-Isolation Packer 18-15C TBG PACKER 8383.85 7969.45 4-1/2" Baker S-3 Perm Packer 18-15C TBG PACKER 8538.7 8092.38 4-1/2" Baker S-3 Perm Packer • d m• Or- 10 N N O O O (0 N- V O 00 1010 0 = N t() N- � U N o 0 0 0 0 0 0 0 (T0 0 L- O) 10c`') N- , O ( N Lo mm N- 00 N- O 10 10 O) 00 O) O N- O O DD O O M M O O m O O) I.- O O N N- N- CO N- CO CO CO CO llllll F-- 00 O) 00 M M M N- N- M M = O O OO O N- M M M (0 N V (O O) O) N- N O 00 4r' U O - CO (0 O O M �' Ln ✓ ` 4.0Z Q = (0 - CN Nr O M M (p N O M M N co • >M N00 CO00 CO00 O) (0 M W I- w O O Lo00 0 0 0 0 0 0 0 O O O 00 00 00 (J a0 om co d *k N J J *k *k *k O N N �? O ti . 4# *k M (O V O Cl)) (0 O) O) CO CO N LL O 0\0 OO N N - e =60U a, O M M ti N N N M M O) _ M O O O) r+ C 00 � (O - (O O N O M V O 47 N 00 1 O O N CO CC W 00 Q = ._ Uwww U a LL CCo a Z Z ZEtWWWWWWEE p D D H z z z z z D D • • e 2 •k $ _1 c / m as T.) � __ \ e CO = ID ©f / o E / CO w 5 E 6 = U c : _ z b \ ƒ % 7 o 0 E y , k � � 05 _ � § k w Cl) - k---I / E b -/ r f ( a ? < a ° m R m 0 / / 3 0 , L 0 to >- b % ¢ 2 / E RS I < / 0 E - m § • ƒ \ - \ k a) ƒ 2 R - m 2 ± >, 0- © � / � c � /�E � R \ + – m - (1 I G \ e o = m o 2 Z � w 00 u0 .E b / LI 0 / < / E & _a -A7q + Q -ƒ � b < .-: � 0 CO 22 2 w tW \ O @ $ 2 2 - ƒ L ? ± O Q �a_ / 045w / ,- � / � LL 2 / @ i - in DLL 2 I / $ ,- @ L < Ce p - 0 I o A I E M / 2 k\ v ~ \ \ ® 2 L > 20 ® x44A '' < � CD p flo ) o / f 69 / W f / E22 / 0wuJ ' a - A RctFeLL D _ o $ b / C $ $ / �/ A0F- \ L r__ D = z \ \ O O L I 2 \ < f / / / * i 0 / S : 2 o -3 o I E 2 : : 2 _.) « 5 L 0 w w 3 7 m ® / . d - ƒ 0 \ / < ,, TREE= 4-1/16"CMV • Q WELLHEAD= FMC 1 8-15 C SAFETY NOTES: WELL ANGLE>700 @ 9314' ACTUATOR= BAKER C "'4-1/2"CHROME TBG*** KB.ELEV= 48' I BF.ELEV= 13-3/8"CSG, --I 78' KOP= 3350' 68#,K-55 BTC, I I 2104' H4-1/2"HES HXO NIP,D=3,813" Max Angle= 93°@ 11371' D=12.415" Datum MD= MA 2410' H9-5/8"X 7"BKR ZXP LTP,ID=6.310' Datum TVD= 8800'SS 8"X 7"BKR FLEX-LOCK HGR,D=6.260" TOP OF r SCAB LNR --I 2410' L GAS LFT MANDRELS [13-3/8"CSG,72# L 80 BTC D=12.347" H 2687' L * ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3008 3008 4 KBG2 DONE BK 16 03/31/12 • 3 4752 4689 19 KBG2 SO BK 20 03/31/12 Minimum ID = 2.377" @ 9365' w 2 6375 6213 19 KBG2 MY BK 0 04/24/05 3-3/16" X 2-7/8" XO " 21 7909 7605 38 KBG2 DMY BK 0 04/24/05 f 7"SCAB LNR,26#,L-80 BTC-M,D=6.276" l— 8021' 8021' —17"BKR C-2 TEE BACK SLV,D=7.50" 8028' —19-5/8"X 7"BKR H PIR,D=6.188" 8034' H9-5/8"X 7"BKR HNC HGR,D=6.26" M 19-5/8"CSG,47#,L-80 BTG ,D=8.681" ]H I 8175' I 8355' H4-1/2-fES X NP,D=3.813" 9-58'CSG MLLOUT WINDOW(18-15A) 8175'-8225'(50'Wl SECTION MLL) $ X 8376' H7"X 4-1/2"BKR S-3 PKR,D=3.875" 8382' —{3.70"DELOY SLV,D=3.00" ' ' 8399' H4-1/2"FES X NP,D=3.813"(BEHIND LM) 8404' _13-1/2"X 3-3/16"XO,ID=2.786 4-1/2'TBG,12.6#,13CR-80 VAM TOP 8460' .0152 bpf,ID=3.958" 8462' —jTUBrIG STUB(04!17105) BEHIND 8463' H7"X 4-1/2"UNIQUE OVERSHOT HOT CT LNR z X 8536' H7"X 4-1/2"BKR S-3 PKR,ID=3.875" I ' 8552' J4-1/2" 1-ES XN MP,WILLED TO 3.80"(1995) BEHIND 4-1/2"TBG,12.6#,L-80 NSCT, H 8596' —/ ` 8596' —14-112"WtE G,D=4.00" CT LNR .0152 bpf,ID=3.958' • 8742' H 7"MARKER JOAVT I.7"LNR,29#,L-80 NSCC,.0371 bpf,D=6.184" j--{ -9020' —8910 H ESTMA I tD TOC {7 WHIPSTOCK12/19/11- 9020' ) -t, ':.i MLLOUT WINDOW {CQviENtf CAP-8 GAL(12111/11) — 9043'SLM *� �` (78-15C) 9024'-9032' 2.13"POSISET PLUG(12/11/11) —{ 9060' \. + • • ? FISH:8 COLLET/DOGS FROM WFD SO PERFORATION SUMMARY v — REF LOG:SLB MCN.ON 03/11/12 TACK REM". 1"X4"EA(02/11/16) ANGLE AT TOP PELF: 30°@ 9090' 9365' _3-3-16"X 2-7/8"XO, Note:Refer to Roduction DB for historical perf data ` D=2.377" SIZE SPF I'tTERVAL Opn/Sgz SHOT SQZ FISH-3 WFD WDEPACK SLIPS — 7 2" 6 9090-9095 0 11/01/14 &ELEMENT(5/10/15) 2" 6 9110-9115 0 11/06/14 _ 2" 6 10450-11150 0 03/11/12 3-1/4"LNR,6.6#,L-80 TCA, H 9365' 2" 6 11370-11690 0 03/11/12 .0079 bpf,D=2.85' NI PBT° —{ 11695' 2-7/8"LNR,6.4#,L-80 STL,.0058 bpf,D=2.441" —{ 11730' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UST 11/03/87 ROW 41 INTIAL COMPLETION 02/18/16 RJKIJMD RLL TOP PKR/LEFT FISH(02/11/16) WELL: 18-15C 05/20195 N2ES SIDETRACK(18-15A) 03/15/17 ZV/JMD ROLL LOWER WDE'ACK PKR(3/13/11 PERMT No:' 111720 05/23/97 N4ES CTD SDTRACK(18-15B) API NEo: 50-029-21755-03 02/05/12 NORDIC:CTD SDTRACK(18-15C) SEC 19,T11 N,R15E,813'FM_&311'FWL 03/13/12 NORDIC i CTD-PH FS(18-15C) 10/20/15 SJW(tLH PULURESET STRDL PKR(09/29/15)_ BP Exploration(Alaska) STATE OF ALASKA LASKA OIL AND GAS CONSERVATION COMMI ' REPORT OF SUNDRY WELL OPERATIO S 1. Operations Performed Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate 0 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:Pull&ReSet Orifice PKR Q 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 211-172 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-21755-03-00 7. Property Designation(Lease Number): ADL 0028321 8. Well Name and Number: PBU 18-15C 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL „ ' ED 11.Present Well Condition Summary: 1 ' ,Le. Total Depth: measured 11734 feet Plugs measured feet OCT 2 1 2015 true vertical 8679 feet Junk measured 9130 feet Effective Depth: measured 11695 feet Packer measured See Attachment feet G !"�fia true vertical 8678 feet Packer true vertical See Attachment feet AO4 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"91.5#H-40 31 -111 31-111 1490 470 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate 8146 9-5/8"47#L-80 29-8175 29-7808 6870 4760 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 9110-9115 feet 10450-11150 feet 11370-11690 feet True vertical depth: 8553-8557 feet 8691-8684 feet 8681-8678 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: SCAHNE 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 13 17782 2362 900 506 Subsequent to operation: 600 16511 2501 780 506 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory 0 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 ❑ 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 Cw78� Phone +1 907 564 4424 Date 10/21/15 Form 10-404 Revised 5/2015 V T7- /0/27-,115- RBDMS3tbc 12 3 2015 � Submit Original Only �/ /Z, /S '7/`d • • Packers and SSV's Attachment PBU 18-15C SW Name Type MD TVD Depscription 18-15C PACKER 2417.76 2417.58 7" Baker ZXP Top Packer 18-15C PACKER 8030.79 7698.93 7" Baker H-Isolation Packer 18-15C TBG PACKER 8383.85 7969.45 4-1/2" Baker S-3 Perm Packer 18-15C TBG PACKER 8538.7 8092.38 4-1/2" Baker S-3 Perm Packer 18-15C PACKER 9101 8544.75 2-3/8"WFD ER Packer 18-15C PACKER 9119.91 8561.34 2-3/8"WFD WidePak Packer • • C) 0_0 0 0 0 0 o 0 0 (() N- CO N Lo N CD CD U y 0 0 0 0 0 0 0 0 0 0 i 0) CC) CO N- t O O (N O M CO m M CD.4- co N- co QO co co 'Cr N- co N- O LC) to 0) CO 0) O) N- O 0) CO 00 O N- CO CO CO C) CO CO O) N- CO CO a- N N- N- CO I- 00 00 CO CO CO O) CO LU (C) CO • a- O) 0) a- O) CO 00 O N- LO CO CO CO N V CO 6) 0) N- N CD N N- N- N- OO CO C 0) N LI) 0) "Zr OM CO 0) N N O COCO N O CO CO a- O O CO LO N CO CO 0) CO 0) CO CO v o I I I 1 I 1 1 QOO N 0 CO co• co CO N CD CO CO N OO N CO CO CO 0) CO _ r co a 0 tS) O O 0 0 0 00 0 Ln 00 co O O co co co 0 00 2 Y J J CO CO J J J M = d *kaON *kJJ *k *k4t cY) CO C0 • CU CA -0\O 000 60 N N - - - O M M, LO I` I` r CO N N M M O t CO CO C\IO CO O C 00• co (fl - (o O N O M `-V O d N CO LC) O N OO `- J w w0 Q = U w w (21 w 121 Z r w w w w w w m m p D D ' z z z z z D D U (n (n Z J J J J J F— F— • • a) c . 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"a O a) N CY) d a) u) N - 0)^ O N O N 60, w �� acv) -F3 _ m 0) _c a) © an a) n W L M1) UL U nQ O W := O * CoOo N 2 W Rf* Q a) o - u_ * c) d- . in H OCL a) ED Q- OiIw W NN N a 0c 0 ��`2 �> c '.=.6 « mW D � Co a) o Eo W U ©- as L ai c co co IN Ur L � (0 O -- O � � 0 a Yai � c � 0 > ocC20_ -6 Q- * aP L o0- -- 0_� r,< 0 � Q63 6 �rn _o D. . � w � 0 _ili adca E ala_) ,T, Lo c join i V y0 E > a) 0 W Z -p c m N N 0 Eo Z nl N D _, - O c m 0 N- O * o � I oi)wWO c S oma - (Y) 0rco .y) � 0 .cN odrn = 2 * C > aZ w0 � Uj CD�� Cl) aN_� rncn > E (13 a� a) (3) a30 W a) (a O >- - )i 20z c 0 ct CD N�' U 00.) .� Via' DC - a) E RS < wn o0 �Nin � wI _c cH U Z WH c0 -o -0 o � oZv E E a) • � QY -� O �o �CYS oH iZ cn � �n � O � U (a ca o � � cn � � o o 0) T CL D 0 < W O mo ciz a 0U WOO a) � D o w Q -i � ate ' (i to � N � U En O zwmz O2OCC v 3 m z , Nvw ai .5 oin U 6Yca',) v ) ' o - D:_-; Zv) pv) W .� : z0 (`? Ow 3 •? ,L EU � °° ii � * 011, _ o a Hixc O ct rn co U (o (a Q-� (n Q_1 O OJQN � wo0 � 00 � "o U � �0 � � - c � E * I� a0 a) < 3 m J � W ( Z0. W a) - 0) WZwa. Uo c � U * H � --0O O d _1U a Q Jia - D ui O Q .°) co iii u_ Daz (n i� waf-er WO o � <- 5 0 re **�' Q Cv � � 00Q � p � > am a o U X * a. w _ O aEi � ° w = W QO (nom ti � � W i N N * c a. U0O rn O * H a) ct• - C.*) _ � A o 0 Z Q 0E c c Co 0 > W CD � � o _0 c ma H N � � *k N J a) 0 _, N __ N n O H uu)) - _ Ll p - c H co a. pO p Y [n N U O * co Q u) a) c J H N A c7 - o a. C2 L N a. a- H N oU) o a- pQ D _ ) Y 2 Acow Oia 6 > < mO O � Y H z c c Li CC D Q 3 Q o c) C7 Q (nom W2 =_ w � �_ aow Q y d m w L o i, D2Uco .,- W H Q in Ln Ln in Ln a >- o O o 0 0 (n ,n H N N N N N .- in o o � CD C7) a) m N- CO 0 C) O a) a) CS) Q TREE= 4-1/16"CIW V1ELLFEAD= FMC ill 1 8-1 1 5 C NOTES: WELL ANGLE>700 @ 9314' ._-..__._._.._._..-_.--------------- 4-1/2 CHROME TBG*** ACTUATOR= BAKER C KB.ELEV= 48' BF.ELEV __ __ 13-3/8"CSG, H 78' II KOP= 3350' 68#,K-55 BTC, 2104' —I4-1/2"HES HXO PIP,ID=3.813" 1. 1 Max Angle_ 93°@ 11371' ID=12.415" Datum MD= MA 2410' —I 9-5/8"X 7"BKR ZXP LIP,ID=6.310" - Datum TVD= 8800'SS 2428' _49-5/8"X 7"BKR FLEX-LOCK HGR,ID=6.260" TOP OF 7"SCAB LNR —I 2410' li GAS LIFT MANDRELS 13-3/8"CSG,72#,L-80 BTC, L ST MD TVD DEV TYPE VLV LATCH PORT DATE=12.347" — 2687' 4 3008 3008 4 KBG2 DOME BK 16 03/31/12 Minimum ID =2.786" @ 8404" 3 4752 4689 19 KBG2 SO BK 20 03/31/12 3-1/2" x 3-1/4" L N R XO 2 6375 6213 19 KBG2 DMY BK 0 04/24/05 �► 21 7909 7605 38 KBG2 DMY BK 0 04/24/05 7"SCAB LNR,26#,L-80 BTC-M,ID=6.276" —I 8021' 8021' —17"BKR C-2 TIEBACK SLV,D=7.50" 8028' -1 9-5/8"X 7"BKR H PKR,N3=6.188" 8034' H9-5/8"X 7"BKR HMC HGR,ID=6.26" 9-5/8"CSG,47#,L-80 BTC-M,ID=8.681" —I 8175' 8355' H 4-1/2"FES X NIP,ID=3-813" 9-5/8"CSG MLLOUT WINDOW(18-15A) 8175'-8225'(50'W/SECTION MILL) $ 8376' H 7"X 4-1/2"BKR S-3 PKR,D=3.875" 8382' -13.70"DEPLOY SLV,N?=3.00" 4-1/2"TBG, 12.6#,13CR-80 VAM TOP — 8460' I 8399' —I4-1/2"FES X (BEHINDP,ID=3.813"(BN)LNR) .0152 bpf,ID=3.958" \ 8404' _13-1/2"X 3-3/16"XO,ID=2.786 r 4-1/2"TBG, 12.6#,L-80 NSCT, — 8595' 8462' --1TUBG STUB(04/17/05) BEHIND .0152 bpf,ID=3.958" NV8463' IH 7"X 4-1/2"UNIQUE OVERSHOT CT LNR X _8536' H 7"X 4-1/2"BKR S-3 PKR,ID=3.875" 8552' -14-1/2" I-ES XN MP,MELED TO 3.80"(1995) BEHIND • 8596' H4-1/2"WLEG,ID=4.00" CT LNR • 8742' HT MARKER JONI- 7" 7"LNR,29#,L-80 NSCC,.0371 bpf,ID=6.184" —I —9020' —8910 —I ESTIMATED TOC 7"VVHI'STOCK(12119!11) —) 9020' CEMENT CAP-8 GAL(12/11/11) —I 9043'SLM MILLOUT WINDOW(18-15C) 9024'-9032' 2.13"FOSISET PLUG(12/11/11) —I 9060' 9085'-9125' J WFD WIDE PACK STRADDLE PKR ' I w I ORFICE SUB,ID=1.75"(09/29/15) FERFORATNJN SUMMARY �..•a: REL LOG:SLB MCN_ON 03/11/12 9365' —3-3-16"X 2-7/8"XO, ANGLE AT TOP PERE: 30'@ 9090' 0=2.377" Note:Refer to Production DB for historical perf data FISH-3 WFD WIDEPACK SUPS ? SIZE SPF INTERVAL OpniSqz SHOT SQZ &ELEMENT(5/10/15) 2" 6 9090-9095 0 11/01/14 2" 6 '9110-9115 0 11/06/14 3-1/4"LNR,6-6#,L-80 TCII, —H 9365' 2" 6 10450-11150 0 03/11/12 .0079 bpf,ID=2.85" PBTD — 11695' 2" 6 11370-11690 0 03/11/12 ORATIONS BEI IND S PKR w t® SUB 2-7/8"LNR,6.4#,L-80 STL,.0058 bpf,E=2.441" —I 11730' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/03/87 ROW 41 INTIAL COM PLETION 11/07/14 TA/PJC SET STRDL PKR w/ORIFACE WELL: 18-15C 05/20/95 N2ES SIDETRACK(18-15A) 05/10/15 JLS/PJC PULL TOPSECTON-STRDL PKR PERMIT No:"L 111720 05/23/97 N4ES CTD SDTRACK(18-15B) 05/25/15 ALM PJC SET STRDL PKR w/ORIFACE API No: 50-029-21755-03 02/05/12 NORDIC s`CTD SDTRACK(18-15C) 10/20/15 SJW/fLH PULURESET STRDL PKR(09/29/15) SEC 19,T11N,R15E,813 FNL&311'FWL 03/13/12 NORDIC 5 CTD-PERFS(18-15C) 11/06/14 TA/PJC ADPERFS 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. 0-1 L - I TJ 'P•• Well History File Identifier Organizing (done) E Two-sided ❑ Rescan Needed RES N: OVERSIZED: NOTES: Color Items: ❑ Ma payscaie Items: Logs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: BY: Maria Date: 'S') 13I isi of Project Proofing BY: WSW Date: V 13 it /s/ OW i Scanning Preparation cax 30 = 100 + 5- = TOTAL PAGES s--- (Count does not include cover sheet) BY: -� Date: f14. 3 j /s/ M Production Scanning Stage 1 Page Count from Scanned File: (0 10 (Count does include cover eet) Page Count Matches Number in Scanning Preparation: YES NO BY: all. Date: q#I 13 /s/ IVP Stage 1 If NO in stage 1, page(s) discrepancies were ound: 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 0 cn N) a) C E J a J O p 1— O 2 g w a) :-O 0 w a) .>`. a) C a 10 CO ici ccm (0 N O a) a •N O N Q"y •y£ L O N z D LLO of o0m a'au)im m 0a�'i � m hof a) 0 w a, S', a a m o, n�� r • m ��a Ern aa� n �•2 o5 rlj c LL a6 oUJ m ' of0 Cr) �c9 coca, `0CD J ' o `T° mo 0_--E. o E a mw-, E E co cnE aa, O° U mf° m E •.•-• ME cp o cr 5 f6 c _ - mow:. 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J J J J J J J w 1 (D N N N J J W N J J J J W i iV ro tri N N N N N N N N Al N N Al W W W ::)EiCCII: fJ0a� � cict NCtin 6 9411,'‘'N14 ...... cr) ril (c, If, S),,,......)o �7_� , rn n a ,4 ,,,, „ n 000000000000000000004 a 0000O000GWWWW0000WCO , ' 0 r fTi )3 (...f...: L, yr r F STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: ® Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class: 20AAC 25.105 20AAC 25.110 ® Development 0 Exploratory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions 0 Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. _ 3/13/2012 211-172 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 1/24/2012 50-029-21755-03-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 2/1/2012 PBU 18-15C 813'FNL, 311'FWL,SEC. 19,T11N, R15E, UM 8. KB(ft above MSL): 47.90' 15.Field/Pool(s): Top of Productive Horizon: 1273'FNL,2627'FWL, SEC. 19,T11N, R15E, UM GL(ft above MSL): Prudhoe Bay Field/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool 901'FSL,1604'FWL, SEC. 18,T11N, R15E, UM 11695' 8678' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 692067 y- 5961063 Zone- ASP4 11734' 8679' ADL 028321 TPI: x- 694394 y- 5960663 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 693316 y- 5962810 Zone- ASP4 None 18. Directional Survey: ® Yes 0 No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900'(Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD: MWD/GR/RES,GR/RES/DEN/NEU, GR/CCL/MCNL 9024' 8480' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT CASING WT.PER FT. GRADE TOP 'BOTTOM TOP ;BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# H-40 Surface 110' Surface, 110' 30" 1680#Poleset 13-3/8" 72# L-80 Surface, 2686' Surface 2686' 17-1/2" 2500 sx CS III.550 sx CS II 9-5/8" 47# L-80 Surface 8175' Surface, 7808' 12-1/4" 500 sx Class'G' 7" 29# L-80 2410' 9024' 2410' 8480' 8-1/2" 625 sx Class'G'.869 sx Class'G' 3-1/4"x 2-7/8" 6.6#/6.5# L-80 8382' 11730' 7968' 8679' 4-1/8" 119 sx Class'G' 24. Open to production or injection? ® Yes 0 No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET (MD+TVD of Top&Bottom;Perforation Size and Number): (MD/ND) 2"Gun Diameter,6 SPF 4-1/2" 12.6#13CR/L-80 8596' - 8376'/7963' MD ND MD ND 8536'/8090' 10450'-11150' 8691'-8684' 11370'-11690' 8681'-8678' RECEIVED 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. DEPTH INTERVAL(MD)I AMOUNT AND KIND OF MATERIAL USED r.„....0:113.1.' ,: APR 1 U 2012 2500' Freeze Protect w/44 Bbls Diesel AOGCC 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): 4/5/2012 Flowing Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 4/5/2012 12 Test Period 4 1260 746 1 128 631 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 0 220 24-Hour Rate ♦ 2520 1591 2 36.6 Deg 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No Sidewall Core(s)Acquired? 0 Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. None RBDMS APR 11 2012 jmil Form 10-407 Revised 12/2009 CONTINUED ON REVERSE y Lrr'/�L Submit Original Only/^ q/7,0)f l C> 29. GEOLOGIC MARKERS(List all formations and markers 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. 23SB/Zone 2B 9072' 8520' None 22 TS 9104' 8547' 21 TS/Zone 2A 9164' 8598' Zone 1B 9235' 8651' TDF/Zone 1A 9314' 8692' Formation at Total Depth(Name): TDF/Zone 1A 9314' 8692' 31.List of Attachments: Summary of Daily Drilling Reports,Well Schematic Diagram,Surveys 32.I hereby certify that the ft rego' is tr = - • •,f r : to the best of my knowledge. _ Signed: Joe Lastufka I Drilling Technologist Date: 4/10hEd PBU 18-15C� 211-172 Prepared By Name/Number Joe Lastufka,564-4091 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 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND 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 AAC 25.071. Form 10-407 Revised 12/2009 Submit Original Only North America -ALASKA- BP Page 1 of 12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date X3-0116N-C: (2,268,182.00) Project: Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 1/20/2012 12:00 - 18:00 6.00 MOB N WAIT PRE CONTINUE TO STANDBY ON W-PAD. CONTINUE TO MOVE EQUIPMENT TO DS 18. WAITING ON SECURITY TO COMPLETE KENAI CAMP MOVE TO KUPARUK. 18:00 - 20:30 2.50 MOB N WAIT PRE CREW CHNAGE,CHECK RIG EQUIPMENT. CONTINUE TO WAIT ON SECURITY FOR RIG MOVE. TOUR PUSHER AND DRILLER DROVE ROUTE TO W-PAD- TO INSPECT ROAD CONDITIONS FOR RIG TRAVEL. 20:30 - 21:00 0.50 MOB P PRE PJSM FOR RIG MOVE WITH SECURITY, DRILL CREW, NORDIC FIELD SUPERINTENDANT, WSL,TOUR PUSHER,SLB.REVIEW SOP AND ROUE INSPECTION. 21:00 - 00:00 3.00 MOB P PRE MOVE RIG FROM W-PAD TO DS18. 1/21/2012 00:00 - 05:30 5.50 MOB P PRE MOVE RIG TO DS18. 05:30 - 07:30 2.00 MOB P PRE CREW CHANGE. RIG STOPPED AT PRICE PAD TO ALLOW FIELD CHANGEOUT. DISCUSS RIG STATUS. 07:30 - 12:00 4.50 MOB P PRE CONTINUE TO MOVE RIG TO DS 18. RIG AT CENTRAL POWER STATION. 12:00 - 16:00 4.00 MOB P PRE CONTINUE RIG MOVE TO DS 18. ARRIVE AT DS18 AT 1600 HRS. COMPLETE WELL TRANSFER PERMIT WITH DSO. 16:00 - 20:30 4.50 MOB P PRE PJSM FOR BACKING RIG OVER WELL WITH- WSL, NORDIC FS,TP, DSO AND CREWS. SET RIG MATS IN PLACE. ALIGN RIG AND BACK OVER DS18-15C. SET RIG DOWN. RIG ACCEPTED AT 20:30 20:30 - 22:00 1.50 RIGU P PRE BERM IN CELLAR,SPOT SATTELITE CAMP, SET LANDINGS AND WALKWAYS. R/U TRANSDUCES TO IA AND OA. R/U VALVE GUARDS ON THE SAME.SPOT RIG EQUIPMENT AS IT SHOWS UP FROM W-PAD. HARDLINE CREW ON LOCATION-R/U FLOWBACK TANK AND HARDLINE. R/U SATTELITE POWER. 22:00 - 22:45 0.75 BOPSUR P PRE PJSM,N/D TREE CAP, N/U BOPE. 22:45 - 00:00 1.25 BOPSUR P PRE PJSM WITH CH2MHILL. LIFT REEL INTO REELHOUSE. CONTINUE N/U BOPE. 1/22/2012 00:00 - 01:15 1.25 BOPSUR P PRE CONTINUE N/U BOPE. 01:15 - 04:15 3.00 RIGU P PRE RJSM, R/U REEL HARDLINE AND BULKHEAD. HARDLINE CREW CONTINUES TO SPOT FLOWBACK TANK AND R/U HARDLINE. PT HARDLINE. R/U SUPPORT EQUIPMENT. Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 2 of 12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date X3-0116N-C: (2,268,182.00) Project: Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:15 - 04:40 0.42 RIGU P PRE CONDUCT H2S RIG EVACUATION DRILL. MUSTER IN PRIMARY SAFE AREA AT SATTELITE OFFICE. NOTIFY DSO OF DRILL. EVERYONE ACCOUNTED FOR-CONDUCT AAR. GOOD JOB BY ALL,FLOORHAND SHOWED UP WITH SCBA- SCS NOTIFYED VAC TRUCK DRIVERS TO REMAIN AT SIGN IN SHACK. EVAC SIREN HEARD BY EVERYONE. 04:40 - 06:00 1.33 RIGU P PRE FILL PITS WITH 8.6 PPG RECONDITIONED DRILLING MUD. 580 BBLS MUD DELIVERED. PJSM, PREP COIL TO PULL ACCROSS. 06:00 - 06:30 0.50 RIGU P PRE CREW CHANGE. DISCUSS CURRENT OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO PREP TO PULL COIL ACROSS. 06:30 - 09:30 3.00 RIGU P PRE PULL AND STAB COIL. 09:30 - 11:30 2.00 RIGU P PRE MU E-COIL HEAD. TEST SAME(PT, PRESS, COND) 11:30 - 13:30 2.00 RIGU P PRE CIRCULATE COIL. PUMP 10 BBLS MEOH,15 BBLS FRESH WATER. CHASE WITH DRILLING MUD. 13:30 - 18:00 4.50 BOPSUR P PRE SHELL TEST BOPS. BEGIN COMPLETE BOP TEST PROCEDURE. TEST ALL EQUIPMENT AS PER AOGCC REGS, PERMIT TO DRILL,AND BP GUIDELINES. CHART RECORD TESTS. TEST WITNESS WAIVED BY JOHN CRISP, AOGCC INSPECTOR. PERFORM ACCUMULATOR DRAWDOWN TEST. 18:00 - 18:30 0.50 BOPSUR P PRE CREW CHANGE,DISCUSS CURRENT RIG OPS. CHECK EQUIPMENT. 18:30 - 19:20 0.83 BOPSUR P PRE PUMP SLACK FORWARD 3.8 BPM 3300 PSI. 19:20 - 20:20 1.00 BOPSUR P PRE PRESSURE TEST INNER REEL VALVE, PACKOFF AND BULKHEAD- TO 250/3500 PSI 5 MIN EACH.CHART RECORD TEST. 20:20 - 22:00 1.67 BOPSUR P PRE PJSM,DISCUSS POTENTIAL FOR COIL FREEZE UP.-35 DEG. BLOW DOWN KILL LINE.CIRULATE COIL. INSTALL AND TEST DFCV- TO 250/3500 PSI.CHART TEST. Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 3 of 12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) — Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 22:30 0.50 BOPSUR P PRE H2S RIG EVACUATION DRILL-CONDUCT AAR. WHAT WENT RIGHT-ALL HANDS ACCOUNTED FOR. RESONDED IN A TIMLEY MANNER TO MUSTER AREA. WIND DIRECTION WAS IDENTIFIED,SCS NOTIFIED NON RIG PERSONEL. WHAT WENT WRONG-DOGHOUSE RIG EVAC ALARM FAILED TO WORK IN-36 DEG WEATHER,ALTERNATE ALARMS WERE SOUNDED AND A GIATRONICS ANNOUNCMENT WAS MADE. DSO HARMONY NUMBER WAS DIFFERENT DUE TO NEW RELEIF ON SLOPE. LESSONS LEARNED-ALWAYS BE PREPARED FOR THE UNEXPECTED- EVEN THOUGH 1 ALARM DIDN'T SOUND THERE ARE ALTERNATE ALARMS TO USE. HARMONY NUMBERS FOR DSO HAVE CHANGE DUE TO THERE CREW CHANGE- THEY WERE STILL ABLE TO BE NOTIFIED. SCS TO VERIFY DSO HARMONY NUMBERS. 22:30 - 23:40 1.17 BOPSUR P PRE PJSM FOR PULLING TWC VALVE WITH VALVE CREW,WSL DRILL CREW AND TP. REVIEW SOP FOR PULLING TWC. LOAD LUBRICATOR ONTO RIG. R/U LUBRICATOR AND TOOLS.CLOSE SSV, OPEN SWAB.STAB LUBRICATOR. 23:40 - 00:00 0.33 BOPSUR P PRE PRESSURE TEST LUBRICATOR AGAINST CLOSED SSV AND MASTER VALVE TO 250/3500 PSI.CHART RECORD TESTS. OPEN SSV AND MASTER VALVE. 1/23/2012 00:00 - 00:30 0.50 BOPSUR P PRE PULL TWC VALVE. NO WHP OBSERVED. CLOSE MASTER AND SSV. 00:30 - 00:50 0.33 BOPSUR P PRE PRESSURE TEST AGAINST CLOSED BARRIERS TO 250/3500 PSI.CHART TEST. 00:50 - 01:15 0.42 BOPSUR P PRE L/D TOOLS AND LUBRICATOR. 01:15 - 01:30 0.25 BOPSUR P PRE INSTALL LUBRICATOR CAP.CLOSE SWAB VALVE. OPEN SSV. INSTALL FUSABLE CAP. LOAD OUT TOOLS. 01:30 - 02:00 0.50 BOPSUR P PRE SHUT IN CHOKE,PRESSURE TEST LUBRICATOR CAP TO 250/3500 PSI. CHART TEST. OPEN MASTER AND SWAB VALVES. NO WHP.OPEN MANUAL CHOKE. 02:00 - 02:40 0.67 BOPSUR P PRE FLOWCHECK WELL FOR 30 MIN.STATIC. PJSM FOR P/U WINDOW MILL BHA. 02:40 - 03:15 0.58 BOPSUR N SFAL WEXIT PREP TO P/U WINDOW MILL BHA. R/U AIR TO CHECK FLOWBACK LINE. FLOWBACK LINE FROZEN.-45 AMBIENT TEMP FROZE BELOW FLOOR-ICE PLUG. FLUID PACK WITH METHONAL. 03:15 - 04:00 0.75 STWHIP P WEXIT M/U WINDOW MILL BHA#1. 3.80"DSM,3.79"STRING MILL,2 7/8"XTREME MOTOR,XO,2 JTS 2 3/8"PH6, XO,XO, BS,DGS,DPS,EDC,PC,SWP, LQC, UQC,XO,CTC. M/U INJECTOR.TEST QTS. Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 4 of 12 Operation Summary Report Common Well Name: 18-15 'AFE No r Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C:(2,268,182.00) Project: Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 06:00 2.00 STWHIP P WEXIT RIH PUMPING MIN RATE, TAKE DIESEL RETURNS TO TIGER TANK. STRAP RETURNS IN TIGER TANK EVERY 1000' 06:00 - 06:30 0.50 STWHIP P WEXIT CREW CHANGE. DISCUSS..CURRENT OPERATION...MAKE.EQUIPMENT.CHECKS.INS IDE.AND..OUTSIDE..RIG. CONTINUE TO RIH. 06:30 - 08:30 2.00 STWHIP P WEXIT RUN IN HOLE TO 9039' l` DISPLACE WELL TO USED DRILLING MUD (POWER VIS) 2552 PSI AT 2.49 BPM IN. 08:30 - 09:30 1.00 STWHIP P WEXIT LOG GR TIE IN TO PDC LOG. SUBTRACT 13' r CORRECTION. 09:30 - 10:30 1.00 STWHIP P WEXIT GET SLOW CIRC RATE FOR PUMPS. RIH AND TAG WHIPSTOCK AT 9024.4' 41 K#UP,21 K#DN. 2960 PSI FS AT 2.60 BPM IN. 10:30 - 14:00 3.50 STWHIP P WEXIT MILL WINDOW FROM 9023.7' 2960 PSI FS AT 2.6 BPM IN/OUT. TIME MILL AT 1'PER HOUR. MTR WORK SLOWLY INCREASING. MILL AT 3150-3200 PSI AT 2.60 BPM. MILL TO 9026.4' 14:00 - 18:00 4.00 STWHIP P WEXIT MILL AHEAD TO 9030'. 3050 PSI FS AT 2.58 BPM IN/OUT. 150-300 PSI MTR WORK. 2.5-3.5K#DHWOB. 18:00 - 18:30 0.50 STWHIP P WEXIT CREW CHANGE,DISCUSS CURRENT OPS. CHECK EQUIPMENT. 18:30 - 20:10 1.67 STWHIP P WEXIT CONTINUE MILLING WINDOW. MILL AHEAD FROM 9031.2'. DHWOB=2-2.5K. F/S=2.6 BPM 2960 PSI WITH 340 PSI MOTOR WORK. IN/OUT=2.6 BPM. PVT=407 BBLS. I/A=288 PSI.O/A=338 PSI. MILL EXIT WINDOW AT 9032' FORMATION RETURNS NOTED AT SHAKER. 20:10 - 00:00 3.83 STWHIP P WEXIT CONTINUE MILLING 10'OF RATHOLE TO 9041' L 1/24/2012 00:00 - 00:30 0.50 STWHIP P WEXIT MILL RATHOLE TO 9042' PUMPING 2.6 BPM 3420 PSI. DHWOB=3.9K. ROP= 1.5 FPH. IWOUT=2.6 BPM.PVT=403 BBLS. 00:30 - 01:30 1.00 STWHIP P WEXIT REAM-CLEANUP WINDOW MAKING 3 PASSES. DRY DRIFT WINDOW-CLEAN. TOW AT 9023.7'BOW AT 9031'. 01:30 - 01:40 0.17 STWHIP P WEXIT FLOWCHECK WELL.STATIC. PJSM FOR POH.OPEN EDC. 01:40 - 03:15 1.58 STWHIP P WEXIT POH PUMPING 3.15 BPM 3000 PSI. PERFORM 500'JOG AT SURFACE. 03:15 - 03:20 0.08 STWHIP P WEXIT FLOWCHECK AT SURFACE-STATIC. OPEN EDC, PJSM FOR BHA. PVT=353 BBLS. 03:20 - 04:10 0.83 STWHIP P WEXIT SET BACK INJECTOR. L/D WINDOW MILL BHA#1 MILL=3.79"GO,3.78 NO GO. STRING MILL=3.79"GO.3.78"NO GO. LOAD OUT TOOLS. Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 5 of 12 Operation Summary Report Common Well Name 18-15 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date: 1/20/2012 End Date: `X3-0116N-C: (2,268,182.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:10 - 05:00 0.83 STWHIP P WEXIT PJSM-CHECK TORQUE ON TREE BOLTS.ALL TIGHT. 05:00 - 06:00 1.00 DRILL P PROD1 M/U BUILD BHA#2.BI-CENTER BIT,XTREME MOTOR WITH 3 DEG AKO, HOT, DGS, DPS, EDC, PC, SWP, LQC, UQC, XO, CTC. M/U INJECTOR.TEST QTS.OPEN EDC. 06:00 - 06:30 0.50 DRILL P PROD1 CREW CHANGE. DISCUSS CURRENT OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND OUTSIDE ROUNDS. CONTINUE TO RIH. 06:30 - 07:30 1.00 DRILL P PROD1 CONTINUE TO RIH TO TIE IN POINT. 07:30 - 08:00 0.50 DRILL P PROD1 LOG GR TIE IN. SUBTRACT 12'CORRECTION. 08:00 - 08:30 0.50 DRILL P PROD1 RECORD SLOW PUMP RATE PRESSURES. RUN THROUGH WINDOW OK. DRILL 4'TO 9047'. MWD TOOL PROBLEM 08:30 - 10:30 2.00 DRILL N DFAL PROD1 CIRCULATE OUT OF HOLE TO CHECK E-CONNECTOR AND BHI TOOLS. HOLD PJSM NEAR SURFACE. 10:30 - 11:15 0.75 DRILL N DFAL PROD1 FLOW CHECK. GET OFF WELL. UNSTAB COIL. LD TOOLS. 11:15 - 12:15 1.00 DRILL N DFAL PROD1 TROUBLE SHOOT FLOW SUB ADD NEW UPPER SECTION. -TEST TOOLS N CATWALK. 12:15 - 13:15 1.00 DRILL N DFAL PROD1 MAKE UP BUILD SECTION BHA -TEST QTS. 13:15 - 14:45 1.50 DRILL N DFAL PROD1 RIH W/OPEN EDC. 14:45 - 15:00 0.25 DRILL - N DFAL PROD1 8665-8697',GAMMA TIE IN LOG.MINUS 11' CORRECTION. 15:00 - 15:15 0.25 DRILL N DFAL PROD1 REBOOT BHI COMPUTERS. 15:15 - 15:45 0.50 DRILL N DFAL PROD1 RIH,CLOSE EDC&PASS THRU WINDOW,OK. -RIH TO BOTTOM,ACQUIRE SLOW PUMP RATES. 15:45 - 19:00 3.25 DRILL P PROD1 COMMENCE DRILLING BUILD SECTION. 19:00 - 21:15 2.25 DRILL P PROD1 DRILLING AHEAD AT 2.68 BPM WITH 3625 PSI. PVT OF 396 BBLS ROP OF 36 FT/HR DRILL TO 9200' 21:15 - 23:15 2.00 EVAL P PROD1 WIPER AND RE-TIE IN WELL. RA TAG AT 9,028' 23:15 - 00:00 0.75 DRILL P PROD1 DRILLING AHEAD AT 2.59 BPM WITH 3582 PSI TO 9238' PVT OF 394 BBLS. ROP OF 36 FT/HR.ECD OF 9.6 PPG 1/25/2012 00:00 - 03:15 3.25 DRILL P PROD1 DRILL AHEAD AT 2.67 BPM WITH 3702 PSI. PVT OF 395 BBLS. ROP OF 47 FT/HR. ECD OF 9.6 PPG. 0100 HRS-9276'AT 2.68 BPM WITH 3435 PSI. ROP OF 27 FT/HR 0200 HRS-9320'AT 2.52 BPM WITH 3450 PSI. ROP OF 31 FT/HR ECD OF 10.01 PPG.WOB OF 2.69 K. 0300 HRS-9341'AT 2.65 BPM WITH 3435 PSI. ROP OF 38 FT/HR. ECD OF 10.01 PPG.WOB OF 1.16K 03:15 - 03:50 0.58 DRILL P PROD1 WIPER TO WINDOW. 2.64 BPM AT 3185 PSI Printed 2/20/2012 1:26:13PM North America-ALASKA- BP Page 6 of 12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project: Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:50 - 05:00 1.17 DRILL P PROD1 DRILL AHEAD AT 2.55 BPM WITH 3650 PSI PVT OF 392 BBLS ROP OF 34 FT/HR ECD OF 10.03 PPG. WOB OF 1.76K. 0500 HRS 9400'AT 2.61 BPM WITH 3300 PSI. ROP OF 20 FT/HR/ECD OF 10.02 PPG AND WOB OF 0.73K 05:00 - 07:15 2.25 DRILL P PROD1 WIPER TO WINDOW THEN POOH FOR BHA. -FLOW CHECK AT WINDOW,WELL STABLE, OPEN EDC. -POOH,CLOSE EDC AT SUFACE,FLOW CHECK 10 MINUTES,WELL STABLE. 07:15 - 08:30 1.25 DRILL P PROD1 PJSM. BREAK OFF INJECTOR, L/D BUILD SECTION BHA#2. -BIT GRADED 3-3,CT ALL XI(1)PLUGGED NOZZLE. -M/U LATERAL BHA W/RIB STEERABLE MOTOR. -TEST QTS&MWD,OK. 08:30 - 10:15 1.75 DRILL P PROD1 RIH W/LATERAL BHA. 10:15 - 10:30 0.25 DRILL P PROD1 LOG TIE IN,MINUS 13'CORRECTION. 10:30 - 11:00 0.50 DRILL P PROD1 CONTINUE IN HOLE,ACQUIRE SLOW PUMP RATES. 11:00 - 13:15 2.25 DRILL P PROD1 DRILL AHEAD,MAINTAINING CLOSE TO 90 DEGREES AND TURNING TO THE LEFT. -AVERAGE ROP,50-70 FPM.40K UP WT,18K DOWN WT. -100-200 PSI MOTOR WORK,1 -3K WOB, GOOD WT TRANSFER. -PUMPING 2.6 BPM/3120 PSI OFF BOTTOM. 13:15 - 13:30 0.25 DRILL P PROD1 WIPER TRIP TO 9430', NO ISSUES. 13:30 - 15:30 2.00 DRILL P PROD1 MADD PASS F/9430'-9040'. 15:30 - 16:00 0.50 DRILL P PROD1 RBIH, NO HANGUPS. 16:00 - 18:00 2.00 DRILL P PROD1 DRILL AHEAD LATERALLY TO 9700' 18:00 - 19:00 1.00 DRILL P PROD1 WIPER TRIP TO WINDOW OBTAIN SPRS#1-2.61 BPM @ 3025 PSI,1.5 BPM @ 2036 PSI,0.5 BPM @ 1500 PSI,#2-2.6 BPM @ 3015 PSI,1.5 BPM @ 2050 PSI,0.5 BPM @ 1505 PSI. 19:00 - 21:10 2.17 DRILL P PROD1 DRILL AHEAD AT 2.61 BPM WITH 3241 PSI TO 9850' PIT VOLUME OF 389 BBLS, ECD OF 9.67 PPG, WOB OF 2.45K, ROP OF 90 FT/HR. 21:10 - 22:25 1.25 DRILL P PROD1 WIPER TRIP TO SHOE TIE IN AT+2' 22:25 - 00:00 1.58 DRILL P PROD1 DRILL AHEAD AT 2.51 BPM WITH 3135 PSI TO 9946' PIT VOLUME OF 384 BBLS, ECD OF 9.67 PPG, WOB OF 2.52K, ROP OF 51 FT/HR. Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 7 of 12 ,�I .. .; Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 1/26/2012 00:00 - 06:30 6.50 DRILL P PROD1 DRILL AHEAD AT 2.57 BPM WITH 3413 PSI TO' PIT VOLUME OF 381 BBLS, ECD OF 9.67 PPG, WOB OF 4.29K, ROP OF 19 FT/HR. 0215 HRS 9945'AT 2.53 BPM WITH 3186 PSI. 4.21K WOB. ROP DROPPED TO—14 FT/HR GEO SAYING CEMENTED SAND SEEN AT SHAKERS.TURNING BIT UP. 0345 HRS 9976'AT 2.55 BPM WITH 3362 PSI. 5.42 K WOB. ROP—15 FT/HR 0415 HRS 9984'AT 2.54'BPM WITH 3289 PSI. GEO CONFIRMS WE ENTERED THE BSAD. GEO STEERS UP TO FIND TOP AND DISCUSSES OPTIONS WITH GEO TOWN. NOTIFIED TOWN ODE. 06:30 - 07:00 0.50 DRILL C 9,993.00 PROD1 INSTRUCTED BY GEOLOGIST TO CEASE DRILLING. -WIPER TRIP WHILE DECISION BEING MADE. 07:00 - 09:30 2.50 DRILL C 9,993.00 PROD1 DECISION MADE TO POOH F/BILLET. -PJSM,POOH,FLOW CHECK @ WINDOW, WELL BORE STABLE. -OPEN EDC&CONTINUE OUT OF HOLE. -AT SURFACE,CLOSE EDC,FLOW CHECK 10 MINUTES,WELL STABLE. 09:30 - 11:00 1.50 DRILL C 9,993.00 PROD1 L/D LATERAL DRILLING BHA. -PICK UP ALUMINUM BILLET AND BILLET RUNNING ASSEMBLY. -TEST QTS,OPEN EDC AND TEST MWD,OK. 11:00 - 12:45 1.75 DRILL C 9,993.00 PROD1 PJSM. RIH W/BILLET FOR OPEN HOLE SIDETRACK. 12:45 - 13:00 0.25 DRILL C 9,993.00 PROD1 LOG TIE IN, MINUS 13'CORRECTION. 13:00 - 13:45 0.75 DRILL C 9,993.00 PROD1 CONTINUE IN HOLE,PAST WINDOW,CLOSE EDC. -UP WT 36-38K,DOWN WT 18K. -RIH, SET DOWN 10K @ 9445', PICK UP AND WORK FREE. -SET BACK DOWN,15K,MADE CALL TO ETL, PERMISSION GRANTED TO SET IT THERE. -COIL OPERATOR WORKED IT THRU. -RIH TO 9711'.TOP OF BILLET @ 9700'. -DOUBLE SLIPS ORIENTED 30 DEG RIGHT OF HIGH SIDE.TRIPLE SLIPS DOWN AND TO THE LEFT. -PRESSURE UP TO SET BILLET,WENT TO 4400 PSI,SAW NO SHEAR. -PICK UP FROM 12K TO 30K AND PRESSURE UP TO 4200 PSI. -OBSERVE RETURNS,PICK UP 6'AND CIRCULATE. -RBIH AND SET DOWN 5K ON BILLET @ 9700'. 13:45 - 15:30 1.75 DRILL C 9,993.00 PROD1 POOH,FLOW CHECK @ WINDOW,WELL BORE STABLE. -AT SURFACE,10 MINUTE FLOW CHECK,OK. 15:30 - 16:15 0.75 DRILL C 9,993.00 PROD1 PJSM. BREAK OFF INJECTOR, UD BILLET RUNNING ASSEMBLY. -EVERYTHING LOOKS GOOD, ROD IS ALL THERE AND STRAIGHT. 16:15 - 21:30 5.25 DRILL P PROD1 PERFORM CHROME MANAGEMENT. -PJSM.CUT OFF 50'OF COIL AND 50'OF E LINE. -REHEAD AND TEST.TEST CHECKS. Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 8 of 12 • Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project: Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations Thr) (ft) 21:30 - 22:30 1.00 DRILL C 9,993.00 PROD1 PJSM FOR BHA. P/U SIDE TRACK BHA 22:30 - 00:00 1.50 DRILL C 9,993.00 PROD1 RIH WITH SIDE TRACK BHA#6 TO 6300' RATE OF 0.34 BPM WITH 1139 PSI. 1/27/2012 00:00 - 01:30 1.50 DRILL C 9,993.00 PROD1 RIH WITH SIDE TRACK BHA#6 FROM 6300' RATE OF 0.34 BPM WITH 1139 PSI. TIE IN @-13'CORRECTION OBTAIN SPRS#1 -0.5 BPM AT 1560 PSI,1.0 BPM AT 1850 PSI,#2- 0.5 BPM AT 1553 PSI AND 1.0 BPM AT 1842 PSI. RIH TO BILLET AT 9699' 01:30 - 05:00 3.50 DRILL C 9,993.00 PROD1 DRILL AHEAD FROM 9699'.TIME DRILL FOR 1.5 HRS AND MADE NO PROGRESS BEGIN APPLYING WOB.STALLING 1 TIME. RATE OF 2.56 BPM WITH 3065 PSI.WOB OF 2.41K. 05:00 - 09:30 4.50 DRILL C 9,993.00 PROD1 CONTINUE TO ATTEMPT TO GET SIDETRACK OFF OF ALUMINUM BILLET. -DRILLED TO 9707',SUCCESSIVE STALLING INDICATION OF BIT CONTACTING ANCHORS. -MUD PUMP SUCTION SCREEN PLUGGED OFF WITH ALUMINUM SHAVINGS. -MADE CALL TO SUPERINTENDANT AND ODE AND DECISION MADE TO POOH FOR 2ND BILLET. 09:30 - 11:30 2.00 DRILL C 9,993.00 PROD1 POOH TO WINDOW,FLOW CHECK WELL STABLE. -OPEN EDC AND CONTINUE OUT OF HOLE. -AT SURFACE,FLOW CHECK 10 MINUTES, WELL STABLE. 11:30 - 12:00 0.50 DRILL C 9,993.00 PROD1 PJSM. LAY DOWN SIDETRACK BHA#6,BIT TRASHED. 12:00 - 15:00 3.00 DRILL X WAIT 9,993.00 PROD1 WAIT FOR NEW BILLET,(HAD TO BE ASSEMBLED). 15:00 - 16:00 1.00 DRILL C 9,993.00 PROD1 PICK UP AND MAKE UP ALUMINUM BILLET AS PER BAKER REP. BHA#7 -TEST CTK,OPEN EDC,TEST QTS,OK. 16:00 - 19:30 3.50 DRILL C 9,993.00 PROD1 RIH W/ALUMINUM BILLET&ANCHOR ASSEMBLY. TIE IN AT-12' LOST COMMUNICATION WITH HOT. POOH 19:30 - 22:45 3.25 DRILL X DFAL 9,695.00 PROD1 POOH FOR HOT. 22:45 - 00:00 1.25 DRILL X DFAL 9,695.00 PROD1 L/D BHA. SWAPPED HOT UNIT. INTERNAL HOT FAILURE. P/U BHA#7. 1/28/2012 00:00 - 00:30 0.50 DRILL X DFAL 9,695.00 PROD1 P/U INJECTOR TEST QTS 00:30 - 04:00 3.50 DRILL X DFAL 9,695.00 PROD1 RIH WITH NEW HOT AND 2ND BILLET TIE IN AT+3 CORRECTION AND RECHECK AT RA TAG-GOOD. RIH. 04:00 - 04:15 0.25 DRILL C 9,993.00 PROD1 SET ALLUMINUM BILLET WITH 4300 PSI AT 9695.03' TOP OF BILLET AT 9684' SET 4K TO CONFIRM. 04:15 - 06:00 1.75 DRILL C 9,993.00 PROD1 POOH FOR BUILD BHA. Printed 2/20/2012 1:26:13PM North America-ALASKA-BP Page 9:701-12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 07:00 1.00 DRILL C 9,993.00 PROD1 FLOW CHECK AT SURFACE,10 MINUTES,OK. -UD BILLET RUNNING ASSEMBLY(BHA#7) PICK UP SIDE TRACK ASSEMBLY(BHA#8). -TEST QTS,CTK,OK.OPEN EDC. 07:00 - 08:45 1.75 DRILL C 9,993.00 PROD1 RIH W/SIDE TRACK ASSEMBLY...1.5 DEG MTR&HYCALOG SRR BI CENTER BIT. 08:45 - 09:00 0.25 DRILL C 9,993.00 PROD1 LOG TIE IN,MINUS 12'CORRECTION. 09:00 - 09:45 0.75 DRILL C 9,993.00 PROD1 CONTINUE IN HOLE,TI-IRU WINDOW,CLOSE EDC. ACQUIRE SLOW PUMP RATES. -LIGHTLY TAG TOP OF BILLET @ 9685', PUMPING MIN RATE. 09:45 - 11:30 1.75 DRILL C 9,993.00 PROD1 COMMENCE TIME DRILLING ON BILLET,6 MIN /1/10'FOR 1ST FOOT. -KEEP MOTOR WORK STEADY AFTER 1ST FOOT,NOT APPLYING MUCH WT. -GRADUALLY INCREASE ROP&DRILL OFF OF BILLET TO 9708', NO STALLS. 11:30 - 14:00 2.50 DRILL C 9,993.00 PROD1 POOH W/SIDE TRACK ASSEMBLY. -FLOW CHECK @ WINDOW,10 MINUTES,OK, OPEN EDC. -TAG UP,JOG BHA,FLOW CHECK 10 MINUTES,WELL STABLE. 14:00 - 15:30 1.50 DRILL C 9,993.00 PROD1 PJSM. BREAK OFF INJECTOR AND STAND BACK. -UD SIDE TRACK BHA,PICK UP RIB STEER MOTOR AND LATERAL SECTION BHA. -TEST QTS,CTK,OK.OPEN EDC. 15:30 - 17:15 1.75 DRILL C 9,993.00 PROD1 RIH W/LATERAL SECTION BHA#9. 17:15 - 17:30 0.25 DRILL C 9,993.00 PROD1 LOG TIE IN, MINUS 12.5'CORRECTION. 17:30 - 18:00 0.50 DRILL C 9,993.00 PROD1 CONTINUE IN HOLE,THRU WINDOW,OK. CLOSE EDC. -CONTINUE ON DOWN.., 18:00 - 20:30 2.50 DRILL C 9,993.00 PROD1 DRILLING AHEAD AT 2.56 BPM WITH 3138 PSI. WOB OF 1.8K ROPO OF 65 FT/HR. 20:30 - 21:40 1.17 DRILL C 9,993.00 PROD1 WIPER TO WINDOW 21:40 - 23:15 1.58 DRILL C 9,993.00 PROD1 DRILLING AHEAD AT 2.52 BPM WITH 2955 PSI. WOB OF 1.27K ROP OF 58 FT/HR ECD OF 10.25 PPG. 23:15 - 23:20 0.08 DRILL P PROD1 DRILLING AHEAD AT 2.51 BPM WITH 2732 PSI 1.6K WOB AND 90 FT/HR ROP.DRILLED AHEAD TO TO 10,000' 23:20 - 00:00 0.67 DRILL P PROD1 WIPER TRIP TO WINDOW. 1/29/2012 00:00 - 00:35 0.58 DRILL P PROD1 WIPER TRIP TO WINDOW. SPR OF#1 1.0 BPM @ 1390 PSI,0.5 BPM @ 1165 #21.0 BPM @ 1370 PSI,0.5 BPM @ 1172 PSI. AFTER MUD DISPLACEMENT. 00:35 - 02:30 1.92 DRILL P PROD1 DRILLING AHEAD AT 2.56 BPM WITH 2842 PSI TO 10,150' WOB OF 1.40K, ROP OF 78 FT/HR 02:30 - 04:10 1.67 DRILL P PROD1 WIPER TRIP TO WINDOW TIE IN WITH A+3'CORRECTION. 04:10 - 05:30 1.33 DRILL P PROD1 DRILLING AHEAD AT 2.51 BPM WITH 2732 PSI. WOB OF 1.53K ROP OF 48 FT/HR.PVT OF 378 BBLS -DRILL AHEAD TO 10,309'. Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 10 of 12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING©48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:30 - 07:30 2.00 DRILL P PROD1 WIPER TRIP TO WINDOW,NO ISSUES. C/O HP SCREENS. 07:30 - 08:45 1.25 DRILL P PROD1 DRILL AHEAD F/10,309'-10,450'. -ROP AVG,110-120 FPH.2.5K WOB,275- 325 PSI MOTOR WORK. -GOOD WT TRANSFER DURING THIS INTERVAL. 08:45 - 10:15 1.50 DRILL P PROD1 WIPER TRIP TO WINDOW,PULLED A LITTLE TIGHT @ 10,300',(8K OVER) -UP WT 38K,DOWN WT 20K. 10:15 - 11:30 1.25 DRILL P PROD1 DRILL AHEAD F/10,450'-10,600'. -GEO SAYS GET TO 90.6 DEG BY 10,575 AND HOLD TO TD. -PUMP RATE 2.7 BPM/2780 PSI OFF BTM. -3K WOB, ROP 125 FPH.400-500 PSI MOTOR WORK. -NO FLUID BEING LOST TO FORMATION. 11:30 - 13:30 2.00 DRILL P PROD1 WIPER TRIP TO WINDOW. -LOG TIE IN,ADD 3'CORRECTION. RBIH, NO ISSUES. 13:30 - 14:30 1.00 DRILL P PROD1 DRILL AHEAD F/10,600'-10,750'.ROP 120- 140 FPH. -2.5K-3K WOB,450 PSI AVG MOTOR WORK. 2.7 BPM/2850 PSI OFF BOTTOM PUMP PRESSURE. -VERY GOOD WT TRANSFER THROUGH THIS INTERVAL. 14:30 - 15:45 1.25 DRILL P PROD1 WIPER TRIP TO WINDOW.NO ISSUES. 38-40K UP WT,15-17K DOWN WT. 15:45 - 17:45 2.00 DRILL P PROD1 DRILL AHEAD F/10,750'-10,920'. ROP AVG 120-140 FPH. -GOOD WT TRANSFER THROUGH THIS INTERVAL. -HAVE TO POOH F/BOPE FUNCTION TEST, MIX 40 BBLS SWEEP. -PERFORM(5)MINUTE FLOW CHECK, PULLING 2 FPM F/10'W/PUMPS OFF. -WELL STABLE. 17:45 - 21:30 3.75 DRILL P PROD1 POOH FOR BOPE FUNCTION TEST. -WELL STABLE 21:30 - 22:00 0.50 DRILL P PROD1 BREAK OFF INJECTOR. RACK BACK BHA#10 -BIT GRADE OF 1-1 WITH 3.75"NO GO AND 3.76"GO 22:00 - 22:30 0.50 BOPSUR P PROD1 WEEKLY FUNCTION TEST OF BOPE FROM DRILLERS REMOTE STATION. WSL WITNESSED 22:30 - 23:00 0.50 DRILL P PROD1 P/U RIBSTEER BHA#11 AND GAUGE BIT. STAB INJECTOR AND TEST. 23:00 - 00:00 1.00 DRILL P PROD1 RIH WITH 0.47 BPM AND 751 PSI. 1/30/2012 00:00 - 02:45 2.75 DRILL P PROD1 RIH AT 0.30 BPM WITH 908 PSI. TIE IN WITH A-14' RIH TO 10920' SPR OF PUMP#1 =1.0 BPM @ 1512 PSI,0.5 BPM @ 1227 PSI. PUMP#2= 1.0 BPM @ 1490 PSI,0.5 BPM @ 1200 PSI. 02:45 - 04:00 1.25 DRILL P PROD1 DRILLING AHEAD AT 2.53 BPM WITH 2988 PSI. ROP OF 99 FPH,WOB OF 2.18K Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 11 of 12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 06:30 2.50 DRILL P PROD1 WIPER TRIP TO WINDOW. -UP WT 40K,DOWN WT 16K,NO ISSUES OR HANG UPS. 06:30 - 07:30 1.00 DRILL P PROD1 DRILL AHEAD F/11,060'-11,176'.AVERAGE ROP 125 FPH. -WT TRANSFER IS GOOD. HOWEVER ANGLE IS DROPPING. -DD ADJUSTED RIB STEER TO MAX DEFLECTION TO STEER UP. -STILL DROPPING. HAVE TO POOH FOR BENT HOUSE MOTOR. 07:30 - 11:30 4.00 DRILL N DFAL PROD1 PJSM. CONDUCT FLOW CHECK(5 MIN) 10' OFF BOTTOM,WELL STABLE. -POOH TO WINDOW,FLOW CHECK(10 MIN), WELL STABLE. -OPEN EDC, PUMP MAX RATE,3.7 BPM/300 PSI W/POOH. -TAG UP, FLOW CHECK,(10 MIN),WELL STABLE. 11:30 - 12:15 0.75 DRILL N DFAL PROD1 PJSM. UD RIB STEER MOTOR ASSEMBLY (BHA#11). 12:15 - 13:00 0.75 DRILL P PROD1 CONDUCT COIL/SLACK MANAGEMENT. -PJSM.STAB ON TO WELL, LINE UP TO PUMP. -PUMP SLACK BACK IN TO COIL. 13:00 - 13:45 0.75 DRILL P PROD1 PJSM.CUT OFF 50'OF COIL,NO E LINE. -PUMP SLACK FORWARD, FIND E LINE, MAKE UP COIL CONNECTOR. 13:45 - 15:00 1.25 DRILL P PROD1 PULL TEST COIL CONNECTOR TO 36K, GOOD. -MAKE UP BHI UQC&MEG E LINE,GOOD. 15:00 - 15:15 0.25 DRILL P PROD1 PRESSURE TEST COIL CONECTOR AND UQC BODIES TO 4000 PSI,GOOD TEST. 15:15 - 15:45 0.50 DRILL P PROD1 PJS.C/O STRIPPER. 15:45 - 16:15 0.50 DRILL P PROD1 PJSM.PRESSURE TEST STRIPPER,OTIS CONNECTION AND BAKER CHECK VALVES. -TEST @ 250 PSI/5 MIN,AND 3500 PSI/5 MIN.CHECKS NOT HOLDING. 16:15 - 20:30 4.25 DRILL P PROD1 UD CHECKS. P/U NEW SET TEST CHECKS TO 250 PSI LOW AND 3500 PSI HIGH.TEST CHECKS 2 TIMES. P/U BHA#12 STAB ON INJECTOR AND TEST. CHANGED TWO WHITEY VALVES THAT WHERE FOUND TO BE LEAKING TO OBTAIN A GOOD TEST. 20:30 - 23:00 2.50 DRILL P PROD1 RIH WITH LOGGING TOOLS. 75 FT/MIN TIE IN AT-13'. 23:00 - 00:00 1.00 DRILL P PROD1 LOG WELL FROM 8300'DOWN TO 9650'AT 30 FT/MIN. 1/31/2012 00:00 - 00:45 0.75 DRILL P PROD1 CONTINUE TO LOG DOWN TO 9650'AND BACK UP TO 8300'AT 30' PER MIN. MONITOR WELL-STATIC. 00:45 - 02:45 2.00 DRILL P PROD1 POOH AT 80'FT/MIN. MONITOR WELL-STATIC 02:45 - 03:45 1.00 DRILL P PROD1 MONITOR WELL-STATIC. STAND BACK INJECTOR. UD BHA Printed 2/20/2012 1:26:13PM North America -ALASKA- BP Page 12 of 12 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 1/20/2012 End Date: X3-0116N-C: (2,268,182.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING©48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:45 - 04:15 0.50 DRILL N DFAL PROD1 M/U DRILLING BHA#13 WITH 1.1+DEG AKO. AND GUAGE BIT NEW AT 3.75"NO-GO AND 3.76"GO. M/U INJECTOR.TEST. PDC BIT HYC DSRE413MA2 0.3 TFA (BACK ON NPT FROM RSM-DIRCTIONAL CONTROL) 04:15 - 09:00 4.75 DRILL N DFAL PROD1 RIH WITH NEW DRILLING BHA#13. 0.36 BPM WITH 809 PSI. TIE IN WITH A -14' CORRECTION. -HAD DIFFICULTY RUNNING PAST 11.060' MD -ORIENT AS DRILLED TF,AND APPLY WOB. -ALOT OF STALLS, NO STICKING MOTORED THRU. -FOUND ORIGINAL HOLE RIH TO 11176' 09:00 - 15:00 6.00 DRILL P PROD1 DRILL AHEAD F/11,176'-11,320'. -AVERAGE ROP,120 FPH.LOSING APPROXIMATELY 6 BPH TO FORMATION. 15:00 - 15:30 0.50 DRILL P PROD1 CONTINUE DRILLING TO 11450 FT. 15:30 - 18:30 3.00 DRILL P PROD1 WIPER TRIP FROM 11450 FT TO WINDOW. 18:30 - 19:50 1.33 DRILL P PROD1 DRILLING AHEAD -2.74 BPM WITH 3600 PSI.WOB OF 2K AND ROP OF 139 FT/HR 19:50 - 23:30 3.67 DRILL P PROD1 WIPER TRIP TO WINDOW. TIE IN AT A+7'CORRECTION. SPR FOR PUMP#1 = 1.0 BPM @ 1659 PSI,0.5 BPM @ 1322 PSI,#2= 1.0 BPM @ 1663 PSI, 0.5 BPM @ 1330 PSI. 23:30 - 00:00 0.50 DRILL P PROD1 DRILLING AHEAD F/11,593 T/11644' -2.55 BPM WITH 3417 PSI.WOB OF 1.5K AND ROP OF 163 FT/HR 2/1/2012 00:00 - 01:00 1.00 DRILL P PROD1 DRILLING AHEAD TO TD OF 11733' -2.55 BPM WITH 3417 PSI.WOB OF 1.5K AND ROP OF 163 FT/HR 01:00 - 05:20 4.33 DRILL P PROD1 WIPER TRIP AND RE TIE IN AT+2' CORRECTION. RIH AND CONFIRM TD AT 11734'. 05:20 - 06:30 1.17 DRILL P PROD1 POOH LAYING IN LINER PILL. 06:30 - 09:30 3.00 DRILL P PROD1 LOG CCL UP ACROSS LINER TOP AREA. POOH,PAINT FLAGS AT 8000,5200 FT EOP. 09:30 - 10:30 1.00 DRILL P PROD1 TAG STRIPPER AND UD BHA. BIT IS 1-1. 10:30 - 12:30 2.00 DRILL P PROD1 PJSM FOR P/U PDS CALIPER TOOLS. PROGRAM TOOLS FOR 4 HR OPENING TIME. PICK UP PDS MEMORY CALIPER TOOLS AND 3"COILTRAK BHA,#14. 12:30 - 15:00 2.50 DRILL P PROD1 TEST QTS 250/3500 PSI,GOOD. RIH WITH MEM CALIPER. TIE-IN DEPTH AT 8700 FT,+14 FT CORRECTION. 15:00 - 15:35 0.58 DRILL P PROD1 WAIT JUST ABOVE WINDOW. 15:35 - 16:10 0.58 DRILL P PROD1 RIH THROUGH WINDOW TO 9650 FT. 16:10 - 17:00 0.83 DRILL P PROD1 LOG CALIPER UP FROM 9650 FT TO 8300 FT AT 30 FT/MIN. 17:00 - 19:00 2.00 DRILL P PROD1 POOH FOR LINER. 19:00 - 20:30 1.50 DRILL P PROD1 UD BHA Printed 2/20/2012 1:26:12PM Page 1 of,1,. North America -ALASKA- BP Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time. 10/1/1987 12:00:00AM Rig Release:3/13/2012 Rig Contractor:NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 2/1/2012 20:30 - 00:00 3.50 CASING P RUNPRD PJSM FOR PUMPING SLACK. PUMP SLACK AND CUT 338'OF E-LINE INSTALL COIL CONNECTOR PT AND PULL TESTED TO 40K AND PT TO 4000 PSI-GOOD •R/U INJECTOR ON WELL ROTATED SPOOL TO BALL DROP DROP 3/4"BALL AND PUMP AROUND. R/U ALL HANDLING EQUIPMENT AND SAFETY JOINT. 2/2/2012 00:00 - 05:45 5.75 CASING P RUNPRD -PJSM FOR P/U LINER/ P/U 2-7/8"STL 6 17#L-"80 TUBING DRIFT THE CONNECTION OF THE FIRST 5 JOINTS JOINT#52 AT 0430 HRS. JOINT#76 AT 0545 HRS. 05:45 - 06:30 0.75 CASING P RUNPRD CREW CHANGE CHANGE OUT DIES AND EQUIPMENT FOR 3-1/4"6.37#L-80 WITH 3-3/16"TCIL 06:30 - 11:00 4.50 CASING , P RUNPRD CONTINUE M/U LINER AS PER SUMMARY. WHILE M/U 3.25 LINER CONDUCT KICK WHILE TRIPPING DRILL AND AAR AFTERWARDS. 11:00 - 12:00 1.00 CASING P RUNPRD CLEAN OUT HIGH PRESSURE FILTER BYPASS. PUMP A REEL VOLUME AT 1.8 BPM PRIOR TO M/U CT SWIVEL. M/U CT SWIVEL. M/U CT RISER. 12 00 - 13:35 1.58 CASING P RUNPRD PRESSURE TEST QTS TO 450/3500 PSI, GOOD. RIH WITH LINER BHA. PUMP 0.7 BPM/1600 PSI WHILE RIH. 13:35 - 14:40 1.08 CASING P RUNPRD STOP AT FIRST FLAG AND CORRECT-17 FT TO 8653 FT. CONSISTENT WITH EARLIER CORRECTIONS WHILE DRILLING. WEIGHT CHECK AT WINDOW IS 40K. PASS THROUGH WINDOW WITH NO ISSUES. RIH,STACK WEIGHT AT 10585 FT. PICK UP AND WORK PAST PERIODIC TIGHT SPOTS FROM 10600 FT ONWARDS. PICKUPS ARE CLEAN. 14:40 - 15:30 0.83 CASING P RUNPRD STACKING WEIGHT AT 10868 FT. TRY AT VARIOUS SPEEDS AND PUMP RATES. FINALLY GET THROUGH ON THE 9TH ATTEMPT. PAST 11060 FT LOSE SOME RETURNS, PUMPING 0.97/0.24 BPM WHILE RIH. NO INCREASE IN CIRC PRESSURE. CONTINUE RIH ON PARTIAL RETURNS. POOR HOLE CONDITIONS PAST 11400 FT, FREQUENT WEIGHT STACKING. PICKUPS GETTING A BIT HEAVY. 15:30 - 16:00 0.50 CASING P RUNPRD STACK WT AT 11730 FT,LIKELY TD. PICK UP AND REPEAT,SAME SPOT. PUMP 10 BBLS LO-VIS 20 BBLS HI-VIS TO TRY AND CLEAR HOLE. PUMPING 1.50/0.9 BPM. Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 2 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:OOAM Rig Release: 3/13/2012 Rig Contractor:NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING©48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 18:40 2.67 CASING P RUNPRD RETURNS SLOWLY IMPROVING,NOW AT 1.47 /1.14 BPM PUMPING SWEEP AROUND. RETURNS INCREASED TO A 0.2 LOSS RATE PER MIN.THIS IS THE BEST WE COULD ACHIEVE. 18:40 - 00:00 5.33 CASING P RUNPRD P/U TO GET UP WEIGHT AND HAD 57K. -DROP BALL(STEEL 5/8")AND HEAR BALL LAUNCH. STACK 10K DOWN WEIGHT. -PUMP AT 2.35 BPM WITH 3329 PSI UP TO 35 BBLS AWAY. ;SLOW RATE TO 0.8 BPM WITH 2069 PSI. AT 67 BBLS AWAY INCREASED RATE TO 1.0 BPM WTH 2300 PSI. AT 80 BBLS AWAY P/U TO BALL DROP AND CHECK FOR BALL.NO BALL FOUND. -MIX HI VIS SWEEP AND CONTINUE TO PUMP AT 1.0 BPM WITH 1345 PSI AND 10K STACKED WEIGHT. -2200 HRS- PUMPED TO 64 BBLS WITH NO SIGN OF BALL ON SEAT. SURGE PUMPS 3 TIMES AND WORK STRING TO 50K 3 TIMES. (CONFIRMING WE STILL CONNECTED TO LINER) PUMP COIL VOLUME OF 59 BBLS @ 1.0 BPM WITH 2380 PSI -2310 HRS. PU LOW VIS SWEEP AND DROP SECOND ALUMINUM 5/8"BALL FOLLOWED BY HI-VIS SWEEP. PUMP @ 1.2 BPM WITH 2523 PSI.LOSS RATE OF 0.1 BPM. 2/3/2012 00:00 - 00:30 0.50 CASING P RUNPRD CONTINUE TO CIRCULATE ALUMINUM BALL ON SEAT. AT 56.3 BBLS AWAY PSI INCREASE TO 2800 PSI. BALL ON SEAT WITH CORRECT VOLUME FOR COIL. -INCREASE PRESSURE TO 4500 PSI AND SET OF TRIPS. RAISE TRIPS TO 4800 PSI AND BRING PRESSURE UP TO 4700 PSI WHEN LINER SHEARED. -SHUT DOWN PUMPS AND P/U TO 32K BREAK OVER AND 3'3 TIMES TO CONFIRM OFF OF LINER. -PJSM FOR DISPLACING TO KCL. 00:30 - 02:30 2.00 CASING P RUNPRD DISPLACE MUD TO KCL AT 1.55 BPM WITH 2673 PSI. -MINIMAL LOSS RATE DURING DISPLACEMENT. -BUILD 100 BBLS OF BIOZAN. 02:30 - 04:00 1.50 CASING P RUNPRD EMPTY PITS FOR KCL. -LOAD PITS WITH KCL 04:00 - 06:00 2.00 CEMT P RUNPRD CONTINUE TO PREP RIG FOR CEMENT JOB. -AFTER PRE JOB,PRESSURE TESTING CEMENT LINES AND BATCH MIXING CEMENT IT WILL BE 0500 HRS WHEN PUMPING BEGAN. MADE DECISION TO HOLD OFF ON CEMENT JOB TILL AFTER CREW CHANGE.CALLED OUT RELIEF FOR SCHLUMBERGER CEMENTERS TO BE ON LOCATION FOR CREW CHANGE AT 0600 HRS SO CEMENT JOB CAN PROCEED. Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 3 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay I Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release:3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 07:00 1.00 CEMT P RUNPRD PJSM WITH SLB AND NORDIC CREWS FOR PUMPING LINER CEMENT JOB. SEND SLB PUMP VAN 10 BBLS KCL THROUGH HARDLINE FOR PRIME UP AND PT. '07:00 - 07:20 0.33 CEMT P RUNPRD PRESSURE TEST SLB CEMENT LINES TO 250 /6200 PSI,GOOD. VAC BACK HARDLINE TO PREVENT FREEZEUP. 07:20 - 07:50 0.50 CEMT P RUNPRD START BATCHING UP 24.5 BBLS CEMENT. 07:50 08:20 0.50 CEMT P RUNPRD CEMENT IS UP TO WEIGHT. PUMP BIOZAN TO THE REEL AND SHUT DOWN. LINE UP TO PUMP FROM SLB PUMP UNIT DOWN THE CT. PUMP 24.5 BBLS CEMENT DOWN THE CT AND SHUT DOWN. CLEAN UP LINE GOING BACK TO PUMP UNIT. 08:20 - 08:55 0.58 CEMT P RUNPRD START RIG DISPLACEMENT. ZERO IN AND OUT MM. DISPLACE CEMENT WITH 2#BIOZAN FOLLOWED BY 2%KCL WATER. AT 35.3 BBLS IN CEMENT IS AT LWP,SLOW DOWN RATE. AT 55.6 BBLS IN CEMENT IS AT SHOE,ZERO OUT MM. RUNPRD 08:55 - 09:30 0.58 CEMT P - — � RD 'WITH 2 BBLS CEMENT LEFT ABOVE SELRT, STOP PUMP AND PICK UP CT WEIGHT+13 FT. STACK 10K BACK DOWN,NOW 10 FT HIGHER. PUMP SLOWLY TO PUSH PEE WEE DART INTO LWP. HOLD 1000 PSI. PICK UP A FOOT, PRESSURE FALLS OFF. PUMP 5 BBLS SIDE EXHAUST. OPEN BAKER CHOKE AND RIH TO CLOSE SIDE EXHAUST PORTS. CLOSE BAKER CHOKE AND LAUNCH LWP WITH 3400 PSI. PUSH PLUG DOWN AT 2 BPM,2600-3000 PSI. BUMP PLUG RIGHT ON CALCULATED VOLUME. 09:30 - 11:00 1.50 CASING P RUNPRD OPEN BAKER CHOKE AND CHECK FLOATS, FLOATS HOLDING. PRESSURE UP TO 700 PSI AND PULL OUT OF DEPLOYMENT SLEEVE,CIRC 5 BBLS HERE. POOH,REPLACE CT VOIDAGE+0.6 BPM. 11:00 - 11:20 0.33 CASING P RUNPRD AT 200 FT FROM SURFACE,GETTING SOME CEMENT IN RETURNS. STOP CT AND DIVERT RETURNS TO CUTTINGS BOX. AFTER RETURNS CLEAN UP POOH AND TAG STRIPPER. 11:20 - 12:00 0.67 CASING P RUNPRD TAG STRIPPER AND FLOW CHECK WELL. L/D LINER RUNNING TOOLS. RECOVER 1 ALUMINUM BALL AND SOME CEMENT DEBRIS FROM BALL CATCHER SEAT. LEAVES ONE 5/8"STEEL BALL STILL INSIDE REEL. 12:00 - 13:00 1.00 CASING P RUNPRD OFFLOAD LINER RUNNING TOOLS. M/U BALL CATCHER NOZZLE, M/U CT RISER TO WELL. Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 4 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: COM-ONSHORE(CON) Start Date:2/1/2012 End Date:3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: 3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 13:55 0.92 CASING N SFAL RUNPRD REVERSE CIRCULATE AT 3.3 BPM. LINE UP TO PUMP FORWARD, PUMP 1.5 REEL VOLUMES AT 3.4 BPM. 13:55 - 14:40 0.75 CASING N SFAL RUNPRD SHUT DOWN AND INSPECT BALL CATCHER. NOTHING RECOVERED. RECEIVE CALL FROM SLB LAB,CEMENT IS AT 500 PSI COMPRESSIVE. 14:40 - 15:50 1.17 CASING N SFAL RUNPRD PRESSURE SURGE REEL SEVERAL TIMES. OPEN AND INSPECT 1502 LINE INSIDE REEL. DISCUSS WITH SLB MANAGEMENT IN DEADHORSE, DECIDE TO PUMP 5 BPM WITH KCL WATER. PUMP A REEL VOLUME AT 5 BPM, NO BALL. 15:50 - 19:30 3.67 CASING N SFAL RUNPRD PUMP A HI-VIS SWEEP AT 4.4 BPM.NO BALL. PUMP SLACK BACK. BREAK ALL HARDLINE IN REEL-NO BALL 19:30 - 20:30 1.00 CASING N SFAL RUNPRD CLEAN AND INSPECT POSSUM BELL-NO BALL FILL COIL, PUMP SLACK FORWARD AND ATTEMPT TO PRESSURE TEST HARDLINE (FAIL). DISCOVER LEAK AT E-LINE BULK HEAD IN COIL REEL. 20:30 - 00:00 3.50 CASING N SFAL RUNPRD RE-ENERGIZE PACKING IN BULKHEAD AND PRESSURE TEST LINES(FAIL). CHANGEOUT PACKING IN BULK HEAD. 2/4/2012 00:00 01:00 1.00 CASING N SFAL RUNPRD 'PRESSURE UP COIL REEL AND HARDLINE FOR LEAK TEST. CONTINUE TO TROUBLESHOOT BULK HEAD. 01:00 - 02:00 1.00 CASING N SFAL RUNPRD PUMP SLACK FORWARD. SURGE COIL WITH 5 BPM BURSTS TO PUMP SLACK OUT. 02:00 - 03:00 1.00 CASING N SFAL RUNPRD RE-INSTALL INJECTOR HEAD,PUMP 15/16" STEEL BALL;2.7 BPM,1070 PSI. MISSING 5/8" BALL NOT RECOVERED. 03:00 - 04:00 1.00 CASING N SFAL RUNPRD PUMP 1.25"STEEL BALL;2.4 BPM,970 PSI. MISSING 5/8"BALL NOT RECOVERED. DISCUSS PLAN FORWARD WITH RWO/CTD SUPERINTENDENT. 04:00 - 08:30 4.50 CASING P RUNPRD CUT 50'COIL FOR CHROME MANAGEMENT AND REMAKEUP CONNECTOR. 08:30 - 09:00 0.50 CASING RUNPRD PJSM THEN M/U CLEANOUT BHA,3.79"MILL, STRAIGHT MOTOR,CIRC SUB, DISCONNECT, DBPV. CAN'T GET THE BHA PAST GROUND LEVEL WHILE M/U. TAGGING 1 FT BELOW OPEN MASTERVALVE. 09:00 - 09:40 , 0.67 CASING RUNPRD CLOSE MASTER VALVE,UD CLEANOUT ASSY. DISCUSS WITH CTD SUPT,DECIDE TO RUN A SHORT BHA WITH NOZZLE AND CHECK VALVES TO CIRCULATE OUT SUSPECTED ICE PLUG. M/U NOZZLE, DBPV,5 FT STINGER. BHA OAL=9.07 FT. 09:40 - 10:05 0.42 CASING RUNPRD M/U CT RISER AND PT QTS 400/3500 PSI, GOOD. PUMP 2.1 BPM,OPEN MASTER VALVE. Printed 4/2/2012 10:57:43AM }t North America -ALASKA- BP Page 5 of 14 r Operation Summary Report Common Well Name: 18-15 AFE No Event Type: COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: 3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:05 - 10:30 0.42 CASING RUNPRD RIH SLOWLY TO WASH OUT SUSPECTED ICE PLUG. 5K SETDOWN SEEN RIGHT AT GROUND LEVEL. RUN TO 100 FT, NOTHING FURTHER SEEN. 10:30 - 11:30 1.00 CASING RUNPRD TAG STRIPPER,FLOWCHECK WELL. PJSM FOR P/U CLEANOUT BHA. M/U CLEANOUT BHA,3.79"MILL,STRAIGHT MOTOR,CIRC SUB,DISCONNECT,DBPV. BHA OAL=49.86 FT. 11:30 - 13:10 1.67 CASING P RUNPRD TEST QTS 350/3500 PSI,GOOD. RIH. PUMP 0.50 BPM/280 PSI. SET PUMP TRIPS AT 1000 PSI IN CASE BALL MAKES IT TO BHA. 13:10 - 14:00 0.83 CASING P RUNPRD TAG AT 8393 FT,SOLID TAG LIKELY LINER TOP. INCREASE PUMP RATE TO 2.3 BPM,REPEAT TAG AT SAME SPOT. PICK UP AND PUMP CLEAN KCL DOWNHOLE. 14:00 - 16:00 2.00 CASING P RUNPRD POOH,LEAVE CLEAN KCL IN WELL. NO APPRECIABLE CEMENT RETURNS SEEN, JUST GREY WATER FOR A SHORT TIME. 16:00 - 18:00 2.00 CASING P RUNPRD TAG STRIPPER AND UD CLEANOUT BHA. HOLD PJSM. PRESSURE TEST PRODUCTION LINER LAP TO 250 PSI LOW FOR 5 MIN AND 2400 PSI HIGH FOR 30 MIN(PASSING TESTS, SEE ATTACHED CHART). OBTAIN APPROVAL TO PROCEED FROM WELLS TEAM LEADER. 18:00 - 20:00 2.00 WHSUR P POST MAKEUP 3-1/8"NOZZLE BHA. BHA OAL= 8.09'. STAB INJECTOR HEAD AND PRESSURE TEST QUICK TEST SUB TO 300 PSI LOW AND 4000 PSI HIGH FOR FIVE MIN EACH(PASS). MIRU LRS PUMP TRUCK. PRESSURE TEST LINES TO 250 PSI LOW AND 3000 PSI HIGH FOR 5 MIN EACH(PASS). 20:00 - 22:30 2.50 WHSUR P POST RUN IN HOLE WITH NOZZLE ASSY TO 2500' MD. LRS PUMP 44 BBLS 90 DEG F 6.7 PPF DIESEL. SLB DISPLACE WITH 8.4 PPG KCL WHILE POOH. FREEZE PROTECT 4-1/2"TBG FROM 2500'MD/TVD TO SURFACE WITH DIESEL. CHECK WELL FOR FLOW PRIOR TO PULLING BHA THROUGH BOP STACK. WELL STATIC. NOTE: EXPECTED PORE PRESSURE AT 8646' TVDSS IS 3282. CALCULATED PORE PRESSURE WITH 6.7 PPG DIESEL AND 8.4 PPG KCL IS 3556 PSI(274 PSI OVERBALANCE) 22:30 23:30 1.00 WHSUR P POST UNSTAB INJECTOR,LAYDOWN NOZZLE BHA. 23:30 - 00:00 0.50 WHSUR P POST BLOWBACK COIL FROM RIG FLOOR TO REEL HOUSE. 2/5/2012 00:00 - 01:00 1.00 WHSUB P POST WELLS SUPPORT VALVE SHOP CREW DRY ROD 4-1/16"CAMERON TYPE H BPV. OBSERVE FROM ABOVE FOR FIVE MIN. WELL STATIC AND NO FLOW THROUGH BPV. RIG CREW BREAKDOWN HIGH PRESSURE CIRCULATION MANIFOLD. SEARCH FOR MISSING 5/8"STEEL BALL(NO SUCCESS). Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 6 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release:3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) I (ft) 01:00 - 02:00 1.00 WHSUR P POST FILL 4-1/16"CAMERON PRODUCTION TREE WITH MEOH. CLOSE MASTER,SURFACE SAFETY AND SWAB VALVES. PRESSURE TEST AGAINST TOP OF SWAB VALVE TO 250 PSI LOW AND 3500 PSI HIGH FOR FIVE MIN EACH(PASSING TESTS). 02:00 - 03:30 1.50 RIGD N SFAL POST RIG CREW DRAIN/SEARCH SUMP AND INJECTOR BUNG HOLE ON RIG FLOOR FOR MISSING 5/8"STEEL BALL(SUCCESS). 03:30 - 06:00 2.50 RIGD P POST DRAIN AND CLEAN PITS. 06:00 - 10:30 4.50 BOPSUR P POST OPEN UP BOPE AND INSPECT RAMS(ALL IN ACCEPTABLE CONDITION). 08:00-NOTIFY AOGCC REPRESENTATIVE BOB NOBLE OF INTENTION TO TEST BOPE ON 18-04C. MR. NOBLE WAIVED THE STATE'S RIGHT TO WITNESS. 10:30 - 13:00 2.50 BOPSUR P POST NIPPLE DOWN BOPS. LAYDOWN LUBRICATOR. 13:00 - 18:00 5.00 BOPSUR P POST GENERAL RIG DOWN OPERATONS. CLEAN CELLAR AREA. DISCOVER CRACK IN DERRICK FINGER (REMOVE FROM DERRICK). 18:00 - 21:30 3.50 WHSUR P POST NIPPLE UP TREE CAP AND PRESSURE TESTTO 250 PSI LOW AND 4000 PSI HIGH FOR FIVE MIN EACH(PASSING TESTS,SEE ATTACHED CHART). 21:30 - 23:00 1.50 RIGD P POST WARMUP MOVING SYSTEM. GENERAL RIG DOWN OPERATIONS. 23:00 - 00:00 1.00 RIGD P POST HOLD PJSM FOR MOVING OFF WELL. ALL TREE AND WELLHEAD VALVES LEFT CLOSED TO PRESSURE GAUGES. FINAL T/I/O PRESSURES=0(BPV)/39/0 PSI. WELLWORK TRANSFER PERMIT CLOSED OUT WITH DRILLSITE OPERATOR. WELL HANDOVER COMPLETED WITH WELLS GROUP. COMPLETION EVENT SUSPENDED AND RIG RELEASED AT 23:59 ON 2/5/2012. PREPARE TO MOVE RIG TO 18-04C. 3/5/2012 14:00 - 15:00 1.00 MOB N HMAN 11,734.00 PRE RESUME CON OPERATIONS AT 14:00 ON 3/5/2012(SUSPENDED ON 2/5/2012 DUE TO LACK OF PROPER BOP RAM SIZE FOR 1-1/4" CS HYDRIL PIPE). GENERAL RIG DOWN OPERATIONS IN PREPARATION FOR RIG MOVE. 3/4/2012 17:50: NOTIFIED JEFF JONES OF THE AOGCC OF OUR INTENTION TO TEST BOPE ON 18-15 BEGINNING AT 18:00 ON 3/5/3012. NOTE: NON PRODUCTIVE TIME UNTIL RESUMING ORIGINAL PROGRAM STEP OF PICKING UP CLEANOUT/LOGGING BHA. Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 7 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date:3/13/2012 X3-0116N-C: (1,180,973.00) Project: Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release:3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:00 - 16:00 1.00 MOB N HMAN 11,734.00 PRE BACK RIG OFF 18-08 WELL AND STAGE ON DRILLSITE 18. 16:00 - 21:00 5.00 MOB N HMAN 11,734.00 PRE MOVE RIG MATS FROM OLD WELL AND PLACE AROUND 18-15. SCHLUMBERGER CREWMEMBERS INSTALL TEMPORARY SSV CONTROL PANEL IN OPS CAB. 21:00 - 21:30 0.50 MOB N HMAN 11,734.00 PRE PRE-JOB SAFETY MEETING FOR MOVING 'RIG. 21:30 - 23:00 1.50 MOB N HMAN 11,734.00 PRE MOVE RIG FROM WELL 18-08 TO 18-15. 23:00 - 23:00 0.00 MOB N HMAN 11,734.00 PRE 'SPOT RIG OVER WELL AND CENTER. 4"CAMERON TYPE H TWC IS SET. ALL TREE AND WELLHEAD VALVES CLOSED. 23:00 - 00:00 1.00 MOB N HMAN 11,734.00 PRE BERM UP CELLAR. GENERAL RIGUP OPERATIONS. 3/6/2012 00:00 - 02:00 2.00 MOB N 11,734.00 PRE GENERAL RIG UP OPERATIONS FOLLOWING RIG MOVE. 02:00 - 06:00 4.00 BOPSUR N HMAN 11,734.00 PRE INSTALL LUBRICATOR AND NIPPLE UP BOPS. FILL LINES AND STACK. SHELL TEST BOP STACK AGAINST SWAB VALVE TO 250 PSI p LOW AND 4500 PSI HIGH FOR FIVE MIN EACH. I 05:00: PROVIDED 2 HOUR NOTICE TO MATT HERRERA OF THE AOGCC AS A CALLOUT FOR OUR BOPE TEST. SPOT CUTTINGS BOX 06:00 - 14:00 8.00 BOPSUR N HMAN 11,734.00 PRE PRESSURE TEST BOPE WITH 2-3/8"TEST JOINT TO 250 PSI LOW AND 3500 PSI HIGH FOR FIVE MIN EACH PER AOGCC AND ALASKA DWOP STANDARDS. MATT HERRERA,AOGCC REPRESENTATIVE, ONSITE TO WITNESS TESTS. ALL BOP STACK COMPONENTS FUNCTIONED FROM ALL CONTROL PANELS. NO COMPONENTS FAILURES DURING TESTS. (SEE ATTACHED CHARTS AND REPORTS). 14:00 - 14:30 0.50 BOPSUR N HMAN PRE RIG UP TO TEST INNER VALVE AND CT STRIPPER. 14:30 - 21:00 6.50 BOPSUR N HMAN PRE FIND LINE GOING OUTSIDE THE RIG TO TIGER TANK IS FROZEN,THAW IT OUT WITH STEAM AND HEATER TRUNK. -CONTINUE TO FILL PITS WITH 8.4 PPG KCL -PRESSURE TEST BAKER THRU-TUBING CHECKS TO 250 PSI LOW,3500 PSI HIGH -WIRELINE BUILDING REPS ON LOCATION TO TRAIN SLB DRILLER,WSL ON SSV PANEL OPERATION,REVIEW PROCEDURE 21:00 - 21:30 0.50 BOPSUR N HMAN PRE VERIFY LINE IF THAWED OUT BY PUMPING THROUGH IT LEAVING METHANOL IN THE LINE. -BLOW DOWN LINE -RIG DOWN HEATER AND STEAM HOSE 21:30 - 21:45 0.25 BOPSUR N HMAN PRE PJSM TO STAB INJECTOR AND FINISH BOP TEST 21:45 22:15 0.50 BOPSUR N HMAN PRE STAB INJECTOR AND CIRCULATE DIESEL OUT OF COIL TO CUTTINGS BOX Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 8 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 'X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: 3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task ' Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:15 - 23:30 1.25 BOPSUR N HMAN PRE TEST INNER REEL VALVE AND PACKOFF TO 300 PSILOW AND 3500 PSI HIGH FOR 5 CHARTED MIN TO COMPLETE BOPE TEST. 23:30 - 00:00 0.50 BOPSUR N HMAN PRE OPEN SSV WITH REMOTE PANEL,OPEN SWAB -HOLD 2200 PSI ON TREE AND BOP AGAINST MASTER WHILE WATCHING PRESSURE ON SSV REMOTE PANEL, NO PRESSURE INCREASE ON PANEL INDICATING ISOLATION FROM POSSIBLE WELLBORE PRESSURE BACK TO THE OPS CAB 3/7/2012 00:00 - 06:00 6.00 BOPSUR N HMAN PRE STAND BY WAITING ON ORDERS CONCERNING WELL CONTROL HARDLINE, CLEANING RIG AND GENERAL MAINTENANCE 06:00 - 09:00 3.00 BOPSUR N HMAN PRE SHIFT CHANGE AND RIG WALKAROUNDS. SWAB VALVE IS OPEN FROM THE PRESSURE TEST OF THE VALVE STEM SEALS ON THE SSV. PICK UP INJECTOR AND M/U NOZZLE. TAG CLOSED MASTER VALVE AND PUMP 10 BBLS MEOH AROUND TO FREEZE PROTECT THE WELLHEAD DOWN TO THE MASTER VALVE AND THE END OF THE CT. 09:00 - 10:00 1.00 BOPSUR N HMAN PRE PRESSURE TEST THE HARDLINE GOING OUT 'TO THE TIGER TANK WITH MEOH. 10:00 - 12:00 2.00 BOPSUR N HMAN PRE CONTINUE RIG HOUSEKEEPING. IDENTIFY AND FLAG ALL NON SPM 1502 LINE 1 ON THE CHOKE MANIFOLD. 12:00 - 18:00 6.00 BOPSUR N HMAN PRE CHECK KOOMEY BOTTLE PRE-CHARGE. REBUILD KR VALVE FOR ANNULAR PREVENTER. CONDUCT RIG EVACUATION EXERCISE AND AAR AFTERWARDS. CONTINUE RIG HOUSEKEEPING PROJECTS. DOUBLE CHECK FLAGGING ON ALL NON-SPM 1502 LINE. PUMP THROUGH NEW BAKER CHOKE LINE THAT WAS INSTALLED YESTERDAY,LOOK FOR LEAKS AT CONNECTIONS. 18:00 - 00:00 6.00 BOPSUR N HMAN PRE INVENTORY ALL HARDLINE WITH DIAGRAM OF FMC AND SPM COMPONENTS -TAKE PHOTOS OF MANIFOLDS _ 3/8/2012 00:00 - 04:30 4.50 BOPSUR N HMAN PRE CONTINUE HARDLINE STANDDOWN -INVENTORY AND INSPECT LADDERS, SLINGS,MANRIDER EQUIPMENT -TABLE TOP KICK WHILE DRILLING DRILL 04:30 - 05:30 1.00 BOPSUR N HMAN PRE RIG EVAC DRILL WITH AAR. 05:30 - 12:00 6.50 BOPSUR N HMAN PRE CONTINUE STANDBY FOR 1502 PUMP LINE COMPLIANCE ISSUES. CHANGE LINER WASH. GREASE CENTRIFUGE. CHECK OIL IN AGITATORS. TEST ALL EVAC SIRENS, FIND ONE ON DOGHOUSE ISN'T WORKING. BRING DOWN RIG EVAC SIREN. Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 9 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type: COM-ONSHORE(CON) Start Date:2/1/2012 End Date:3/13/2012 X3-0116N-C:(1,180,973.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: 3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 18:00 6.00 BOPSUR N HMAN PRE CONTINUE STANDBY. DERRICK INSPECTION. INSPECT AND SERVICE LITTLE JERKS. SPILL DRILL. RE-TEST ALL EVAC SIRENS,WORKING GOOD. RELOCATE SSV PANEL OUT FROM FRONT OF ELECTRIC PANEL. 18:00 - 00:00 6.00 BOPSUR N PRE STANDBY -GREASE QUARTER-TURN VALVES -CLEANING AND MAINTENANCE PROJECTS AROUND RIG 3/9/2012 00:00 - 06:00 6.00 BOPSUR N HMAN PRE STANDBY -INVENTORY NON-MOBILE EQUIPMENT ON LOCATION -CLEANING AND MAINTENANCE PROJECTS AROUND RIG 06:00 - 12:00 6.00 BOPSUR N HMAN PRE CONTINUE RIG HOUSEKEEPING PROJECTS. 12:00 - 18:00 6.00 BOPSUR N HMAN PRE LOAD 1.25 CSH ONTO RIG AND STRAP. START DELINEATING NO ENTRY ZONES AROUND THE RIG WHERE MIXED 1502 IRON IS MADE UP. 18:00 - 00:00 6.00 BOPSUR N HMAN PRE CONTINUE DELINEATING EXCLUSION ZONES AROUND 1502 DISSIMILAR MANUFACTURER INTERFACES WITH PLASTIC CHAIN FOR PROPER EGRESS. PHOTO DOCUMENT EXCLUSION ZONES. SEND DOCUMENT WITH MOC TO NORDIC MANAGEMENT AND BP SUPT/WTL FOR APPROVAL TO PROCEED. POST EXIT ROUTE MODIFICATION SIGNAGE AND HOLD SAFETY TRAINING WITH ENTIRE CREW ON NEW EVAC ROUTES. WAIT ON ORDERS. 3/10/2012 00:00 - 02:00 2.00 BOPSUR N HMAN PRE WAIT ON ORDERS TO PROCEED, RECEIVE APPROVAL FROM BP WTL TO GO BACK TO WORK AT 0045. -MOBILIZE EQUIPMENT AND PERSONEL TO PULL TWC 02:00 - 02:30 0.50 BOPSUR N HMAN PRE PJSM WITH DRILLSITE MAINTENANCE,RIG CREW,SLB AND WSL TO PULL TWC -SPECIAL ATTENTION TO COLD WEATHER WORK CONDITIONS FOR PERSONEL AND EQUIPMENT AND USE OF NEW SSV PANEL IN OPS CAB 02:30 - 04:00 1.50 BOPSUR N HMAN PRE RIG UP DSM LUBRICATOR -MEASURE TO ENSURE SSV AND MASTER WILL CLOSE WITH TWC PULLED -PRESSURE TEST LUBRICATOR TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MIN -PULL TWC -CLOSE SSV AND MASTER TO REESTABLISH 2 BARRIERS 04:00 - 04:30 0.50 BOPSUR N HMAN PRE RIG DOWN DSM LUBRICATOR -INSTALL NIGHT CAP 04:30 - 05:00 0.50 CONS N HMAN PRE 30 MIN FLOW CHECK,NO FLOW 05:00 - 06:00 1.00 CONS N HMAN PRE STAB COIL WITH NOZZLE,STINGER AND CHECK,8.96'LONG -PRESSURE TEST LUBRICATOR CONNECTION 300/3500 PSI Printed 4/2/2012 10:57:43AM North America-ALASKA- BP Page 10 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE (CON) Start Date:2/1/2012 End Date:3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay - Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: 3/13/2012 Rig Contractor: NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 08:00 2.00 CONS N PRE RIH TO 3000 FT. CIRC DIESEL OUT TO FLOWBACK TANK. TAG STRIPPER AND D L/D NOZZLE BHA. _ 08:00 - 11:00 3.00 PERFOB P OTHCMP PREP RIG FLOOR FOR RUNNING CSH. DOUBLE CHECK CSH TALLYS AND PIPE COUNT. PJSM FOR M/U MCNL BHA. DISCUSS LOGGING SOURCE. REVIEW RISK ASSESSMENT FOR M/U CSH. REVIEW DROPPED OBJECTS AND WELL CONTROL. 11:00 - 11:30 0.50 PERFOB P OTHCMP START TO MN MCNL BHA. CAN'T PASS THE DEPTH OF 27 FT FROM RIG FLOOR, OBSTRUCTION IN THE WELL. VERIFY MASTER VALVE AND SSV ARE OPEN. SUSPECT ICE PLUG AT GROUND LEVEL. __ - 11:30 11:50 0.33 PERFOB N DPRB ' OTHCMP PJSM FOR M/U NOZZLE,DBPV AND STINGER. 11:50 - 12:20 0.50 PERFOB N DPRB OTHCMP M/U NOZZLE AND DBPV. BHA OAL IS 8.90 FT. PRESSURE TEST QTS TO 300/3500 PSI, GOOD. - OTHCMP RIH CAREFULLY, PUMP 1.5 BPM. 12:20 13:00 0.67 PERFOB N DPRB SET DOWN 5K RIGHT AT GROUND LEVEL, THEN POP THROUGH. CONTINUE WORK DOWN, ICE PLUG IS JUST A FEW INCHES THICK. RIH TO 100 FT AND CIRC FOR 30 MIN TO WARM UP TREE. 13:00 - 13:30 0.50 PERFOB N DPRB OTHCMP POOH,FLOW CHECK WELL. LIFT OFF CT INJECTOR. REMOVE NOZZLE AND DBPV. 13:30 - 20:30 7.00 PERFOB P OTHCMP M/U BHA#17-MCNL+2.3 MILL"CLEANOUT BHA. -MAKE UP 112 JOINTS OF 1-1/4"CS HYDRIL -INSTALL HEAD PIN AND CIRCULATE EVERY 20-30 JOINTS TO FILL PIPE AND WARM THE TREE AND WELLHEAD -PICK UP 2 JOINTS OF 2-3/8"PH6 -TOTAL BHA LENGTH IS 3651.6' 20:30 - 20:50 0.33 PERFOB P OTHCMP STAB COIL -BLOW DOWN KILL LINE -PRESSURE TEST QTS TO 300/3500 PSI 20:50 - 22:15 1.42 PERFOB P OTHCMP PJSM RIH WITH SLB MEMORY LOGGER -RIH AT 80 FPM PUMPING 0.35 BPM/210 PSI FROM 3652'TO 8200' 22:15 - 23:40 1.42 PERFOB ' P OTHCMP START LOGGING AT 30 FPM -ENTER LINER TOP AT 8382', NO PROBLEMS GETTING DOWN -INCREASE PUMP RATE TO 1.5 BPM/2640 PSI CONTINUE LOGGING DOWN 23:40 - 00:00 0.33 PERFOB P OTHCMP PUMP 33 BBL PERF PILL 3/11/2012 00:00 - 01:00 1.00 PERFOB P OTHCMP TAG WITH PUMPS ON AT 11709', CONTINUE TO PUMP 4 BBLS UNTIL PERF PILL IS AT THE MILL. -PUMPS OFF TAG AT 11697.7'WHICH IS AT TOP OF FLOAT COLLAR -PULL UP TO 11400 AND FLAG PIPE. Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 11 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:OOAM Rig Release: 3/13/2012 Rig Contractor: NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ (ft) 01:00 - 03:00 1.00 PERFOB P OTHCMP POH LOGGING AT 60 FPM PUMPING 1.4 BPM TO 8200' **DAYLIGHT SAVING TIME SPRING AHEAD AT 0200** 03:00 - 04:00 1.00 PERFOB P OTHCMP 10 MIN FLOW CHECK AT 8200' -POH TO TOP OF BHA 04:00 - 04:30 0.50 PERFOB P OTHCMP PJSM FOR UNSTABBING COIL TO DROP 1/2" BALL TO OPEN CIRC SUB -FLOW CHECK WELL 04:30 - 06:00 1.50 PERFOB P OTHCMP UNSTAB COIL -DROP 1/2"BALL TO OPEN CIRC SUB. -STAB COIL AND PUMP BALL DOWN -AT 2 TIMES CALCULATED VOLUME, BALL NOT ON SEAT -UNSTAB COIL AND LAY DOWN CHECK -BALL CAUGHT ON DEBRIS ON CHECKS -PUMP BALL DOWN BHA WITH RIG HOSE TO PULL CS HYDRIL DRY. 06:00 - 06:30 0.50 PERFOB J P OTHCMP SHIFT CHANGE AND RIG WALKAROUNDS. 06:30 - 11:00 4.50 PERFOB P OTHCMP CONTINUE PULLING SINGLES OUT AND LAYING DOWN THE FIRST 46 JOINTS STAND BACK THE REMAINING 33 STDS WILL USE ON THE NEXT RUN. WITH 2 STDS REMAINING ABOVE MCNL CONDUCT PJSM WITH SLB MEM LOGGER FOR DEALING WITH RADIOACTIVE SOURCE. PULL REMAINING 2 STDS AND RECOVER 1/2" STEEL BALL. UD LOGGING TOOLS AND OFFLOAD FROM RIG. 11:00 - 14:00 3.00 I PERFOB P OTHCMP PREP TO RUN PERF GUNS. REVIEW HAZARDS AND MITIGATIONS. START TO M/U PERF GUNS. 14:00 - 18:30 4.50 PERFOB P OTHCMP M/U SAFETY JT FOR NORDIC CREW CHANGE. PJSM WITH NEW CREW FOR RUNNING GUNS. CONTINUE MN 59 GUNS AND 70 JTS CSH. 18:30 - 19:00 0.50 PERFOB P OTHCMP STAB COIL -TEST QTS TO 300/3500 PSI,GOOD TEST -SET DEPTH TO TOTAL BHA LENGTH OF 3517.6'. 19:00 - 21:00 2.00 PERFOB P OTHCMP RIH WITH PERF GUNS AT 80 FPM PUMPING 1/2 BPM AT 250 PSI TO FLAG DEPTH OF 11,268',-9.8'CORRECTION 21:00 - 21:30 0.50 PERFOB P OTHCMP TAG PBTD AT 11694.6'IN DOWN STROKE, 11693'IN THE UP STROKE WHEN WEIGHT BROKE OVER,+4'CORRECTION TO LOG PBTD OF 11697' -VERIFY TIE-IN AND CORRECTION WITH WELLSITE GEO. 21:30 - 22:00 0.50 PERFOB P OTHCMP RISK ASSESMENT WITH RIG CREW FOR CHOKE OPERATOR INSIDE EXCLUSION ZONE WHEN POH TO MAINTAIN 200-300 PSI BACK PRESSURE. -MITIGATE RISK BY KEEP BODY AS FAR AWAY FROM MANIFOLD AS POSSIBLE,ONLY ONE INDIVIDUAL IN THE AREA, MAINTAIN RADIO CONTACT FOR COMMUNICATION Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 12 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE (CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: 3/13/2012 Rig Contractor NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 22:30 0.50 PERFOB P OTHCMP REVIEW E-FIRE SEQUENCE WITH TCP AND SLB -ARM E-FIRE BY VARYING PUMP RATES FROM 0.3 BPM TO 1.5 BPM -GUNS FIRED AT 14:07 MIN INTO SEQUENCE AT 11690.7' IN THE UP STROKE -SHOT DETECTION AND LOSS OF RETURNS INDICATE GUNS FIRED -INTERVALS SHOT WERE 10450-11150'AND 11370-11690' 22:30 - 23:40 1.17 PERFOB P OTHCMP POH WITH FIRED PERF GUNS MAINTAINING 250 PSI BACK PRESSURE ON WELLHEAD WITH CHOKE -PUMP 1.5 BPM WHILE POH AT 30 FPM TO TOP OF LINER AT 8382' 23:40 - 00:00 0.33 PERFOB I P OTHCMP 30 MIN FLOW CHECK ABOVE LINER TOP AT 8296' 3/12/2012 00:00 - 00:10 0.17 PERFOB P OTHCMP CONTINUE FLOW CHECK WELL ABOVE LINER TOP 00:10 - 01:30 1.33 PERFOB P OTHCMP POH TO BHA AT SURFACE 01:30 - 02:00 0.50 PERFOB P OTHCMP PJSM FOR LAYING DOWN BHA -REVIEWED BODY POSITIONA ND EQUIPMENT USAGE FOR NEW ROUSTABOUT ON CREW -30 MIN FLOW CHECK 02:00 - 03:30 1.50 PERFOB P I OTHCMP 3 BBLS TO FILL HOLE AFTER 30 MIN FLOW CHECK,STATIC LOSSES 6 BPH -LAY DOWN 2 JOINTS OF PH6 -STAND BACK 30 STANDS(300'FROM FIRING HEAD) 03:30 - 04:00 0.50 PERFOB P OTHCMP PJSM WITH TCP HANDS FOR LAYING DOWN FIRING HEAD AND PERF GUNS -REVIEWED PROCEDURE AND HARC 04:00 - 04:30 0.50 PERFOB P OTHCMP STAND BACK 3 STANDS -LAY DOWN 4 SINGLES 04:30 - 04:45 0.25 PERFOB P OTHCMP CLEAR FLOOR FOR TCP TO LAY DOWN 'FIRING HEAD 04:45 - 05:00 0.25 PERFOB P OTHCMP RIG UP ELEVATORS,T-BAR TO PULL GUNS 05:00 - 06:00 1.00 PERFOB P OTHCMP LAY DOWN PERF GUNS 06:00 - 06:30 0.50 PERFOB P OTHCMP SHIFT CHANGE AND RIG WALKAROUNDS. 14 GUNS HAVE BEEN PULLED. INSTALL SAFETY JOINT PJSM WITH DAY SHIFT ON PULLING PERF GUNS PERSONAL SAFETY.WELL CONTROL AND DROPPED OBJECTS WERE DISCUSSED. AFTER PJSM,FILL WELL WITH 2.9 BBLS. 06:30 - 09:00 2.50 PERFOB P OTHCMP CONTINUE PULLING SPENT PERF GUNS AND LAYING THEM DOWN. ALL SHOTS FIRED. PERFORATED INTERVALS: 10450-11150 11370-11690 09:00 - 11:00 2.00 PERFOB P OTHCMP OFFLOAD SPENT PERF GUNS. OFFLOAD PERF GUN RUNNING EQUIPMENT. 11:00 - 14:45 3.75 PERFOB P OTHCMP M/U NOZZLE,DBPV AND STINGER. PT QTS RISER CONNECTION. RIH TO 2500 FT AND PARK,WAIT FOR LRS. 14:45 - 15:15 0.50 WHSUR P POST PJSM WITH LRS FOP FREEZE PROTECT -RIG UP TO CEMENT LINE Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 13 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site: PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release: 3/13/2012 Rig Contractor: NORDIC CALISTA UWI: 500292175500 Active Datum:ORIG KELLY BUSHING @48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:15 - 17:30 2.25 WHSUR P POST PRESSURE TEST LINES 250/3500 PSI -HEAT DIESEL TO 65 F -PUMP 50 BBLS OF DIESEL TO COIL -CIRCULATE WITH RIG PUMPS WHILE POH LAYING IN DIESEL -RD LRS 17:30 - 18:00 0.50 WHSUR P POST 30 MIN FLOW CHECK 18:00 - 18:30 0.50 WHSUR P POST PJSM -LAY DOWN STINGER AND -STAND BACK INJECTOR 18:30 - 20:00 1.50 WHSUR P POST CLEAN PITS -GREASE CREW SERVICE TREE 20:00 - 20:30 0.50 WHSUR P POST PJSM WITH VALVE SHOP FOR SETTING BPV 20:30 - 21:00 0.50 WHSUR P POST SET BPV WITH T-BAR SINCE FLOW CHECK VERIFIED WELL IS DEAD 21:00 - 21:30 0.50 WHSUR P POST FILL TREE WITH MEOH -MASTER WONT HOLD FLUID -CALL GREASE CREW BACK OUT TO SERVICE TREE 21:30 - 23:00 1.50 RIGD P POST RIG UP SLB PUMPERS TO BLOW DOWN COIL 23:00 - 23:15 0.25 RIGD P POST PJSM WITH PUMPERS FOR N2 BLOW DOWN -DISCUSSED COLD WEATHER AND SPILL PREVENTION 23:15 - 00:00 0.75 RIGD P POST PRESSURE TEST PUMPERS LINE WITH N2 -MIX INHIBITED WATER PILL -CIRCULATE COIL TO FRESH WATER -PUMP 10 BBLS INHIBITED WATER 3/13/2012 00:00 - 00:30 0.50 RIGD RIGD POST PUMP N2 AT 1500 SCFS TO BLOW DOWN REEL 00:30 - 01:00 0.50 r P POST RIG DOWN SLB PUMPERS 01:00 - 01:30 0.50 RIGD P POST AAR FOR PUMPING N2 -PJSM FOR UNSTAB COIL AND PRESSURE TEST TREE VALVES 01:30 - 04:00 2.50 RIGD P POST UNSTAB COIL -PRESSURE TEST MASTER 250/3500 -PRESSURE TEST SWAB 250/3500 04:00 - 06:00 2.00 RIGD P POST CONTINUE CLEANING PITS FOR WELDING PROJECT -PREP REEL FOR SWAP 06:00 - 12:00 6.00 RIGD P POST SET INJECTOR OFF TO SIDE AND REMOVE GOOSENECK TO SWAP ROLLERS OUT TO 2". SWAP INJECTOR GRIPPER BLOCKS AND BOP COMPONENTS OUT TO 2". 12:00 - 15:00 3.00 RIGD P POST CONTINUE TO REDRESS BOPS FOR 2"COIL. CONTINUE WORK ON GOOSE NECK AND INJECTOR COIL SIZE CHANGE. REMOVE CUTTINGS CHUTE FROM PIT#2. 15:00 - 18:00 3.00 RIGD P POST ND BOPS. NU TREE CAP. CONTINUE TO CHANGE COIL EQUIPMENT SIZE FROM 2-3/8"TO 2". '18:00 - 21:30 3.50 RIGD P ' POST CHANGE OUT GRIPPER BLOCKS AND LEVEL WIND SPROCKET TO 2". -CLEAN HP SCREENS,GREASE CHOKE MANIFOLD 21:30 - 22:00 0.50 RIGD P POST PJSM WITH CH2MHILL FOR REEL SWAP. -FOCUS ON COMMUNICATION, COLD WEATHER,AND DROPPED OBJECT PREVENTION Printed 4/2/2012 10:57:43AM North America -ALASKA- BP Page 14 of 14 Operation Summary Report Common Well Name: 18-15 AFE No Event Type:COM-ONSHORE(CON) Start Date:2/1/2012 End Date: 3/13/2012 X3-0116N-C: (1,180,973.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.: NORDIC 2 Spud Date/Time: 10/1/1987 12:00:00AM Rig Release:3/13/2012 Rig Contractor:NORDIC CALISTA UWI:500292175500 Active Datum:ORIG KELLY BUSHING©48.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft)_ 22:00 - 22:45 0.75 RIGD P POST -STAGE TRUCK -LOWER 2-3/8"REEL 22:45 - 23:15 0.50 RIGD P POST INSTALL 2"REEL 23:15 - 23:25 0.17 RIGD P POST AAR FOR REEL SWAP 23:25 - 00:00 0.58 RIGD P POST CONTINUE WITH RIG MOVE CHECKLIST IN PREPARATION FOR MOVE TO PM2-51. RELEASE RIG AT 23:59 ON 3/13/12. WELLWORK TRANSFER PERMIT CLOSED OUT WITH DRILLSITE OPERATOR. WELL HANDOVER COMPLETED WITH WELLS GROUP. Printed 4/2/2012 10:57:42AM rri BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 18 18-15 500292175500 18-15CPB1 Survey: MWD Survey Report - Geographic 03 February, 2012 Pu BAKER HUGHES Survey Report-Geographic0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Site: PB DS 18 MD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Well: 18-15 North Reference: True Wellbore: 18-15CPB1 Survey Calculation Method: Minimum Curvature Design: 18-15CPB1 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 DS 18,TR-11-14 Site Position: Northing: 5,959,213.15ft Latitude: 70°17'35.252 N From: Map Easting: 691,583.44ft Longitude: 148°26'55.555 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 1.46° Well 18-15 API No 500292175500 Well Position +N/-S 0.00 ft Northing: 5,961,062.82 ft Latitude: 70°17'53.317 N +E/-W 0.00 ft Easting: 692,067.25 ft Longitude: 148°26'40.081 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 16.00ft Wellbore 18-15CPB1 API No 500292175571 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2011 1/15/2012 21.30 81.04 57,669 Design 18-15CPB1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 8,999.90 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) r) 31.90 0.00 0.00 100.43 Survey ProgramDate: 1/30/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 50.00 8,999.90 Gyro(18-15A) GYD-CT-CMS Gyrodata cont.casing m/s 9,018.00 9,993.00 MWD(18-15CPB1) MWD MWD-Standard 2/3/2012 3:58:48PM Page 2 COMPASS 2003.16 Build 73 BAKER b f-^� HUGHES Survey Report-Geographic 0 �✓ INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Site: PB DS 18 MD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Well: 18-15 North Reference: True Wellbore: 18-15CPB1 Survey Calculation Method: Minimum Curvature Design: 18-15CPB1 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +EI-W Northing Easting (ft) (0) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 8,999.90 37.06 128.40 8,460.34 -560.80 2,231.53 5,960,559.26 694,312.26 70°17'47.799 N 148°25'35.036 W TIP 9,018.00 37.60 128.78 8,474.73 -567.65 2,240.11 5,960,552.64 694,321.01 70°17'47.731 N 148°25'34.786 W' KOP 9,053.75 32.75 119.80 8,503.96 -579.30 2,257.03 5,960,541.42 694,338.21 70°17'47.617 N 148°25'34.293 W 9,084.75 29.80 97.73 8,530.54 -584.52 2,271.99 5,960,536.59 694,353.30 70°17'47.565 N 148°25'33.857 W 9,115.11 28.70 69.85 8,557.15 -583.02 2,286.37 5,960,538.46 694,367.64 70°17'47.580 N 148°25'33.437 W 9,139.99 34.53 58.75 8,578.35 -577.29 2,298.03 5,960,544.48 694,379.15 70°17'47.636 N 148°25'33.098 W 9,170.23 35.95 38.38 8,603.13 -565.85 2,310.91 5,960,556.25 694,391.74 70°17'47.749 N 148°25'32.722 W 9,200.65 42.37 21.13 8,626.78 -549.22 2,320.19 5,960,573.11 694,400.58 70°17'47.912 N 148°25'32.451 W 9,230.64 48.01 7.75 8,647.95 -528.69 2,325.35 5,960,593.76 694,405.22 70°17'48.114 N 148°25'32.301 W 9,260.79 54.88 354.69 8,666.78 -505.22 2,325.72 5,960,617.23 694,404.99 70°17'48.345 N 148°25'32.290 W 9,281.07 59.96 348.57 8,677.71 -488.33 2,323.21 5,960,634.05 694,402.05 70°17'48.511 N 148°25'32.363 W 9,299.71 65.43 343.70 8,686.26 -472.27 2,319.23 5,960,650.00 694,397.66 70°17'48.669 N 148°25'32.479 W' 9,326.34 71.60 351.60 8,696.02 -448.09 2,313.97 5,960,674.04 694,391.79 70°17'48.907 N 148°25'32.632 W 9,349.95 78.01 358.28 8,702.21 -425.42 2,311.99 5,960,696.65 694,389.22 70°17'49.130 N 148°25'32.689 W 9,383.03 84.72 347.76 8,707.19 -393.03 2,307.99 5,960,728.93 694,384.40 70°17'49.449 N 148°25'32.806 W 9,418.37 88.71 345.70 8,709.22 -358.70 2,299.90 5,960,763.04 694,375.43 70°17'49.786 N 148°25'33.041 W 9,450.15 90.46 343.72 8,709.45 -328.05 2,291.52 5,960,793.46 694,366.27 70°17'50.088 N 148°25'33.285 W 9,479.85 90.43 340.94 8,709.22 -299.75 2,282.50 5,960,821.52 694,356.54 70°17'50.366 N 148°25'33.548 W 9,511.81 90.18 338.58 8,709.05 -269.77 2,271.45 5,960,851.21 694,344.72 70°17'50.661 N 148°25'33.870 W 9,561.95 90.25 335.00 8,708.86 -223.69 2,251.69 5,960,896.76 694,323.79 70°17'51.114 N 148°25'34.445 W 9,592.06 89.75 332.39 8,708.86 -196.70 2,238.35 5,960,923.40 694,309.76 70°17'51.380 N 148°25'34.834 W 9,622.27 89.82 329.77 8,708.97 -170.26 2,223.74 5,960,949.45 694,294.49 70°17'51.640 N 148°25'35.259 W 9,652.27 89.82 328.64 8,709.06 -144.49 2,208.38 5,960,974.82 694,278.48 70°17'51.893 N 148°25'35.707 W 9,680.65 89.75 329.52 8,709.17 -120.15 2,193.80 5,960,998.79 694,263.28 70°17'52.133 N 148°25'36.132 WI 9,710.69 89.57 331.52 8,709.35 -94.00 2,179.02 5,961,024.55 694,247.83 70°17'52.390 N 148°25'36.563 W' 9,740.37 89.60 333.65 8,709.56 -67.65 2,165.35 5,961,050.53 694,233.50 70°17'52.649 N 148°25'36.961 W 9,770.43 90.18 336.50 8,709.62 -40.40 2,152.69 5,961,077.46 694,220.14 70°17'52.917 N 148°25'37.330 W 9,800.19 89.57 339.06 8,709.69 -12.85 2,141.43 5,961,104.70 694,208.19 70°17'53.188 N 148°25'37.657 W 9,830.11 89.57 340.02 8,709.91 15.18 2,130.97 5,961,132.46 694,197.02 70°17'53.464 N 148°25'37.962 W 9,861.89 89.72 340.09 8,710.11 45.06 2,120.13 5,961,162.04 694,185.42 70°17'53.758 N 148°25'38.278 W 9,890.35 89.75 340.30 8,710.24 71.83 2,110.49 5,961,188.56 694,175.09 70°17'54.021 N 148°25'38.559 W 9,920.29 89.88 339.62 8,710.34 99.96 2,100.23 5,961,216.42 694,164.12 70°17'54.298 N 148°25'38.858 W 9,950.65 90.52 338.69 8,710.23 128.33 2,089.43 5,961,244.50 694,152.59 70°17'54.577 N 148°25'39.172 W 9,993.00 90.52 338.69 8,709.85 167.78 2,074.04 5,961,283.55 694,136.20 70°17'54.965 N 148°25'39.621 W TD 2/3/2012 3:58:48PM Page 3 COMPASS 2003.16 Build 73 FA.. BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 18 18-15 500292175500 18-15C Survey: MWD Survey Report - Geographic 03 February, 2012 RIM bp BAKER HUGHES Survey Report Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Site: PB DS 18 MD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Well: 18-15 North Reference: True Wellbore: 18-15C Survey Calculation Method: Minimum Curvature Design: 18-15C 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 DS 18,TR-11-14 Site Position: Northing: 5,959,213.15ft Latitude: 70°17'35.252 N From: Map Easting: 691,583.44ft Longitude: 148°26'55.555 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 1.46° Well 18-15 API No 500292175500 Well Position +N/-S 0.00 ft Northing: 5,961,062.82 ft Latitude: 70°17'53.317 N +El-W 0.00 ft Easting: 692,067.25 ft Longitude: 148°26'40.081 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 16.00 ft Wellbore 18-15C API No 500292175503 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (0) (0) (nT) BGGM2011 1/15/2012 21.30 81.04 57,669 Design 18-15C Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 9,680.65 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (0) 31 90 0.00 0.00 56.44 Survey Program Date: 2/3/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 50.00 8,999.90 Gyro(18-15A) GYD-CT-CMS Gyrodata cont.casing m/s 9,018.00 9,680.65 MWD(18-15CPB1) MWD MWD-Standard 9,685.60 11,734.00 MWD(18-15C) MWD MWD-Standard 2/3/2012 4:02:23PM Page 2 COMPASS 2003.16 Build 73 BAKER bp HUGHES Survey Report-Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Site: PB DS 18 MD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Well: 18-15 North Reference: True Wellbore: 18-15C Survey Calculation Method: Minimum Curvature Design: 18-15C Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +EI-W Northing Easting (ft) (0) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 9,680.65 89.75 329.52 8,709.17 -120.15 2,193.80 5,960,998.79 694,263.28 70°17'52.133 N 148°25'36.132 W'i TIP 9,685.60 89.72 329.85 8,709.19 -115.87 2,191.30 5,961,002.99 694,260.67 70°17'52.175 N 148°25'36.205 W KOP 9,711.57 93.50 329.95 8,708.46 -93.42 2,178.28 5,961,025.11 694,247.08 70°17'52.396 N 148°25'36.584 W 9,740.66 92.12 330.11 8,707.04 -68.25 2,163.77 5,961,049.90 694,231.93 70°17'52.643 N 148°25'37.007 W 9,770.15 92.06 331.66 8,705.96 -42.50 2,149.43 5,961,075.27 694,216.94 70°17'52.896 N 148°25'37.425 W 9,800.17 91.93 334.33 8,704.92 -15.77 2,135.81 5,961,101.64 694,202.64 70°17'53.159 N 148°25'37.821 W 9,830.83 92.06 337.61 8,703.85 12.21 2,123.33 5,961,129.29 694,189.45 70°17'53.435 N 148°25'38.185 W 9,864.10 91.72 340.78 8,702.75 43.29 2,111.52 5,961,160.05 694,176.86 70°17'53.740 N 148°25'38.529 W 9,890.86 91.56 340.68 8,701.99 68.54 2,102.70 5,961,185.07 694,167.39 70°17'53.989 N 148°25'38.786 W 9,920.79 91.78 340.08 8,701.11 96.72 2,092.65 5,961,212.98 694,156.62 70°17'54.266 N 148°25'39.079 W 9,950.19 91.41 339.81 8,700.30 124.32 2,082.57 5,961,240.32 694,145.84 70°17'54.537 N 148°25'39.372 W 9,980.77 91.17 338.02 8,699.61 152.85 2,071.58 5,961,268.55 694,134.12 70°17'54.818 N 148°25'39.692 W 10,010.62 91.07 336.95 8,699.02 180.42 2,060.15 5,961,295.82 694,121.99 70°17'55.089 N 148°25'40.025 W 10,040.40 91.07 336.82 8,698.47 207.80 2,048.46 5,961,322.89 694,109.61 70°17'55.358 N 148°25'40.366 W 10,070.43 90.95 338.59 8,697.94 235.58 2,037.07 5,961,350.37 694,097.51 70°17'55.632 N 148°25'40.698 W 10,101.55 90.98 338.68 8,697.41 264.56 2,025.73 5,961,379.05 694,085.44 70°17'55.917 N 148°25'41.028 W 10,130.37 90.89 338.96 8,696.94 291.43 2,015.32 5,961,405.64 694,074.35 70°17'56.181 N 148°25'41.331 W 10,160.33 90.83 339.18 8,696.49 319.41 2,004.62 5,961,433.34 694,062.94 70°17'56.456 N 148°25'41.643 W 10,190.74 91.20 337.63 8,695.96 347.68 1,993.43 5,961,461.31 694,051.03 70°17'56.734 N 148°25'41.969 W 10,220.51 91.07 336.96 8,695.37 375.14 1,981.94 5,961,488.46 694,038.84 70°17'57.004 N 148°25'42.304 W 10,251.43 91.10 336.59 8,694.78 403.55 1,969.75 5,961,516.55 694,025.93 70°17'57.284 N 148°25'42.659 W 10,280.91 91.29 336.85 8,694.17 430.62 1,958.10 5,961,543.32 694,013.59 70°17'57.550 N 148°25'42.998 W 10,314.17 90.58 337.80 8,693.62 461.30 1,945.28 5,961,573.66 693,999.99 70°17'57.852 N 148°25'43.372 W 10,344.73 91.11 340.23 8,693.17 489.83 1,934.34 5,961,601.90 693,988.33 70°17'58.133 N 148°25'43.690 W 10,374.71 90.83 336.04 8,692.66 517.64 1,923.18 5,961,629.42 693,976.46 70°17'58.406 N 148°25'44.016 W 10,403.53 90.92 334.20 8,692.22 543.79 1,911.06 5,961,655.24 693,963.67 70°17'58.663 N 148°25'44.369 W 10,443.08 91.32 334.11 8,691.45 579.37 1,893.82 5,961,690.37 693,945.53 70°17'59.013 N 148°25'44.871 W 10,477.26 91.35 334.25 8,690.65 610.13 1,878.93 5,961,720.74 693,929.87 70°17'59.316 N 148°25'45.305 W 10,509.59 91.08 336.11 8,689.97 639.47 1,865.37 5,961,749.71 693,915.56 70°17'59.604 N 148°25'45.700 W 10,542.08 90.49 335.23 8,689.52 669.07 1,851.98 5,961,778.96 693,901.42 70°17'59.896 N 148°25'46.090 W 10,573.94 89.97 334.69 8,689.40 697.93 1,838.50 5,961,807.47 693,887.20 70°18'0.179 N 148°25'46.483 W 10,609.97 89.91 333.96 8,689.43 730.41 1,822.89 5,961,839.53 693,870.77 70°18'0.499 N 148°25'46.938 W 10,638.57 90.61 332.57 8,689.30 755.95 1,810.02 5,961,864.74 693,857.26 70°18'0.750 N 148°25'47.313 W 10,681.20 90.28 332.58 8,688.97 793.79 1,790.39 5,961,902.06 693,836.66 70°18'1.122 N 148°25'47.885 W 10,711.07 90.80 333.28 8,688.69 820.38 1,776.80 5,961,928.30 693,822.40 70°18'1.384 N 148°25'48.281 W 10,744.30 90.89 333.89 8,688.20 850.14 1,762.01 5,961,957.66 693,806.86 70°18'1.677 N 148°25'48.712 W 10,774.11 91.29 333.81 8,687.63 876.89 1,748.88 5,961,984.07 693,793.05 70°18'1.940 N 148°25'49.094 W 10,805.25 91.10 334.89 8,686.99 904.96 1,735.40 5,962,011.78 693,778.86 70°18'2.216 N 148°25'49.487 W 10,837.19 90.18 334.66 8,686.63 933.85 1,721.79 5,962,040.31 693,764.51 70°18'2.500 N 148°25'49.884 W 10,865.93 89.51 332.69 8,686.71 959.61 1,709.05 5,962,065.74 693,751.11 70°18'2.753 N 148°25'50.255 W 10,890.17 90.46 332.95 8,686.71 981.17 1,697.97 5,962,087.01 693,739.50 70°18'2.965 N 148°25'50.578 W 10,925.49 90.79 331.85 8,686.33 1,012.47 1,681.61 5,962,117.88 693,722.34 70°18'3.273 N 148°25'51.055 W 10,950.83 90.64 330.69 8,686.01 1,034.69 1,669.43 5,962,139.78 693,709.60 70°18'3.492 N 148°25'51.410 W 10,983.40 90.34 331.55 8,685.73 1,063.21 1,653.70 5,962,167.88 693,693.14 70°18'3.772 N 148°25'51.868 W 11,011.57 91.01 331.91 8,685.40 1,088.01 1,640.36 5,962,192.34 693,679.17 70°18'4.016 N 148°25'52.257 W 11,043.65 91.35 332.13 8,684.74 1,116.34 1,625.31 5,962,220.27 693,663.41 70°18'4.295 N 148°25'52.695 W 11,072.63 90.55 332.20 8,684.26 1,141.96 1,611.78 5,962,245.53 693,649.23 70°18'4.547 N 148°25'53.090 W 11,102.61 90.28 331.39 8,684.04 1,168.38 1,597.62 5,962,271.58 693,634.39 70°18'4.807 N 148°25'53.503 W 11,132.28 89.91 331.71 8,683.99 1,194.47 1,583.48 5,962,297.30 693,619.60 70°18'5.063 N 148°25'53.914 W 11,164.91 88.93 331.62 8,684.32 1,223.19 1,568.00 5,962,325.61 693,603.38 70°18'5.346 N 148°25'54.366 W 11,193.67 90.74 330.03 8,684.41 1,248.30 1,553.98 5,962,350.35 693,588.73 70°18'5.593 N 148°25'54.774 W 11,223.78 91.47 326.33 8,683.83 1,273.87 1,538.11 5,962,375.51 693,572.21 70°18'5.844 N 148°25'55.237 W 11,250.88 90.22 323.94 8,683.43 1,296.10 1,522.62 5,962,397.34 693,556.16 70°18'6.063 N 148°25'55.688 W 2/3/2012 4:02:23PM Page 3 COMPASS 2003.16 Build 73 on0 b BAKER HUGHES Survey Report-Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Site: PB DS 18 MD Reference: Rig on 18-15A @ 47.90ft(Rig on 18-15A) Well: 18-15 North Reference: True Wellbore: 18-15C Survey Calculation Method: Minimum Curvature Design: 18-15C 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 11,280.70 91.29 320.83 8,683.03 1,319.72 1,504.42 5,962,420.48 693,537.37 70°18'6.295 N 148°25'56.219 W 11,310.83 89.88 316.75 8,682.72 1,342.38 1,484.58 5,962,442.62 693,516.95 70°18'6.518 N 148°25'56.797 W 11,340.89 92.61 316.78 8,682.07 1,364.27 1,463.99 5,962,463.98 693,495.81 70°18'6.734 N 148°25'57.397 W 11,370.68 93.01 320.53 8,680.61 1,386.61 1,444.34 5,962,485.80 693,475.60 70°18'6.953 N 148°25'57.970 W 11,400.99 92.49 325.52 8,679.16 1,410.78 1,426.14 5,962,509.51 693,456.78 70°18'7.191 N 148°25'58.501 W 11,430.86 90.03 328.89 8,678.50 1,435.88 1,409.97 5,962,534.18 693,439.98 70°18'7.438 N 148°25'58.972 W 11,460.81 90.40 333.88 8,678.39 1,462.17 1,395.63 5,962,560.09 693,424.97 70°18'7.697 N 148°25'59.390 W 11,490.74 90.31 338.69 8,678.20 1,489.56 1,383.59 5,962,587.17 693,412.24 70°18'7.966 N 148°25'59.741 W 11,520.71 90.58 343.49 8,677.97 1,517.90 1,373.88 5,962,615.25 693,401.81 70°18'8.245 N 148°26'0.024 W 11,552.36 90.03 346.69 8,677.80 1,548.48 1,365.74 5,962,645.61 693,392.89 70°18'8.546 N 148°26'0.261 W 11,580.67 90.15 344.30 8,677.75 1,575.89 1,358.65 5,962,672.82 693,385.10 70°18'8.815 N 148°26'0.467 W 11,610.93 89.42 340.12 8,677.87 1,604.69 1,349.41 5,962,701.38 693,375.13 70°18'9.098 N 148°26'0.737 W 11,641.07 90.15 336.37 8,677.98 1,632.68 1,338.24 5,962,729.08 693,363.25 70°18'9.374 N 148°26'1.062 W 11,670.81 89.42 332.32 8,678.09 1,659.48 1,325.37 5,962,755.54 693,349.70 70°18'9.637 N 148°26'1.437 W 11,690.19 89.39 329.88 8,678.29 1,676.45 1,316.00 5,962,772.26 693,339.90 70°18'9.804 N 148°26'1.710 W 11,734.00 89.39 329.88 8,678.76 1,714.34 1,294.02 5,962,809.57 693,316.96 70°18'10.177 N 148°26'2.351 W TD Survey Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (ft) (ft) (ft) (ft) Comment 9,680.65 8,709.17 -120.15 2,193.80 TIP 9,685.60 8,709.19 -115.87 2,191.30 KOP 11,734.00 8,678.76 1,714.34 1,294.02 TD Checked By: Approved By: Date: 2/3/2012 4:02:23PM Page 4 COMPASS 2003.16 Build 73 TREE= 4-1/16"CNV WELLHEAD= FMC 1 8-1 5C1/2 C2NOT S:E TBGANGLE>70`@ 9314' * ACTUATOR= BAKER C KB. ELEV= 48' BF ELEV= 13-3/8"CSG, —I 78' 4 '4 I KOP= 3350' 68#,K-55 BTC, ( O I 2104' —14-112"HES HXO NIP, ID=3.813" Max Angle= 93°@ 11371' ID=12.415" Datum MD= MA l2410' —19-5/8"X 7" BKR ZXP LTP,ID=6.310" I Datum TVD= 8800'SS 2428' _19-5/8"X 7"BKR FLEX-LOCK HGR,ID=6.260" TOP OF 7'SCAB LNR H 2410' GAS LIFT MANDRELS ST MD l atD DEV TYPE VLVM LATCH PORT' DATE 13-3/8"CSG,72#, L-80 BTC, ID=12.347" H 2687' 4 3008 3008 4 KBG2 DOME BK 16 03/31/12 Minimum ID = 2.377" c 9364" 3 4752 4689 19 KBG2 SO BK 20 03/31/12 • 3-3/16" X 2-7/8" LNR PIN 2 6375 6213 19 KBG2 DMY BK 0 04124/05 21 7909 7605 38 KBG2 DMY BK 0 04/24/05 7"SCAB LNR,26#, L-80 BTC-M,ID=6.276" H 8021' `------*---1 8021' —17"BKR C-2TIEBACK SLV,ID=7.50" 8028' —19-518"X 7"BKR H PKR, ID=6.188" 9-5/8"CSG,47#, L-80 BTC-M, ID=8.681" H 8175' 8034' H9-5/8"X 7" BKR HMC HGR,ID=6.26" I I 8355' —14-1/2"HES X NIP, ID=3.813" 9-5/8" CSG MILLOUT WINDOW(18-15A) 8175'-8225'(50'W/SECTION MILL) S X 8376' -17"X 4.1/2"BKR S-3 PKR, ID=3 875" 8382' H3.70"DEPLOY SLV, ID=3.00" 8399' H4-1/2"HES X NIP,ID=3.813"(BEHIND LNR 4-1/2"TBG, 12.6#, 13CR-80 VAM TOP H 8460' .0152 bpf, ID=3.958" \ 8404' _13-12"X 3-1/4"X0,ID=2.786 4-1/2 TBG, 12.6#,L-80 NSCT, —I 8595' 8462' TUBING STUB(04/17/05) BEHIND • • .0152 bpf,ID=3.958" 8463' —{7"X 4-1/2" UNIQUE OVERSHOT CT LNR • Z X 8536' I7"X 4-1/2"BKR S-3 PKR, ID=3.875" PERFORATION SUMMARY REF LOG SLB MCNL ON 03/11/12 I ' 8552' _14-1/7' HES XN NIP, MILLED TO 3.80"(1995) ANGLE AT TOP PERF: 91°@ 10450' BEHIND / • 8596' —14-12"WLEG, ID=4.00" CT LNR Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2" 6 10450-11150 0 03/11/12 2" 6 11370-11690 0 03/11/12 0 8742' H 7"MARKER JOINT Awl ob. -8910 --i ESTIMATED TOC 7"LNR,29#,L-80 NSCC, .0371 bpf, ID=6.184" H -9020' Illipit MILLOUT WINDOW(18-15C) 9024'-9032' 7"WHIPSTOCK(12/19111) H 9020' CEMENT CAP-8 GAL(12/11/11) — 9043'S LMS / 9365' 3-1/4"X 2-7/8"XO,ID=2.377" 2.13"FOSISET PLUG(12/11/11) —I 9060' / PBTD 11695' 3-1/4" LNR,6 6#, L-80 TCII, .0079 bpf, ID=2.85" H 9365' 2-7/8"LNR,6.4#, L-80 STL, 0058 bpf,ID=2.441" — 11730' DATE REV BY COMMENTS . DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/03/87 ROW 41 ORIGINAL COMPLETION 03/29/12 ?/PJC SET PX PLUG(03/29/12) WELL: 18-15C 05/20/95 N2ES SIDETRACK(18-15A) 04/01/12 MSS/PJC PULL PX PLUG(03/31/12) PERMIT No "2111720 05123/97 N4ES CTD SDTRACK(18-15B) 04/01/12 MSS/PJC'GLV CIO(03/31/12) API No: 50-029-21755-03 02/05/12 NORDIC 2 CTDSDTRACK(18-15C) 04/02/12 JMO/PJC TREE C/O(3/29/12) SEC 19,T11 N,R15E,813'FNL&311'FWL 03/13/12 NORDIC 2 CTD-PERFS(18-15C) 04/03/12 AK/PJC FINAL DRLG CORRECTIONS 40993' PJC DRLG DRAFT CORRECTIONS BP Exploration (Alaska) 2.\\-V-12_ BAKER HUGHES www bakerFiuqiles corn PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION(ALASKA), INC COUNTY NORTH SLOPE BOROUGH WELL NAME 18-15CPB1 STATE ALASKA FIELD PRUDHUE BAY UNIT DAIS 8/30/2012 THIS DISTRIBUTION LIST AUTHORIZED BY: Alfredo Martinez SO#4358027 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 ICompany 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 HUGHES www.ba kerhug hes.corn PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION (ALASKA), INC COUNTY NORTH SLOPE BOROUGH WELL NAME 18-15C STATE ALASKA I-ILLL) PRUDHUE BAY UNIT DA L 8/29/2012 THIS DISTRIBUTION LIST AUTHORIZED BY: Alfredo Martinez SO#4358027 Log CD Log CD Copies Copies Client / Partners Copies Copies Client / Partners 2 Company BP EXPLORATION(ALASKA), INC Company Person PETROTECHNICAL DATA CENTER Person Address LR2-1 Address 900 E BENSON BLVD ANCHORAGE,AK 99508 1 1 Company EXXON MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082 A _ HOUSTON,TX 77002 1 1 Company STATE OF ALASKA-AOGCC Company Person CHRISTINE MAHNKEN Person Address 333 W. 7TH AVE. Address SUITE 100 ANCHORAGE,AK 99501 Company Company Person Person Address Address Company Company Person Person Address Address Company Company Person Person Address Address Page 1 of 1 Letter of Transmittal riles BAKERDate: HUGHESMarch 30, 2012 To: From: State of Alaska AOGCC Baker Hughes INTEQ 333 W. 7`h Ave., Suite 100 795 East 94th Avenue Anchorage, Alaska 99501 Anchorage, Alaska 99515 Bill Michaelson Please find enclosed the directional survey data for the following well(s): R-14B F-29BPB 1 F-29B F-31 APB 1 F-31A W-12AL1 18-15CPB1 18-15C 18-08BPB 1 18-08B Enclosed for each well(s): 2 hardcopy prints of directional survey reports 1 compact disk containing electronic survey files Please sign and return one copy of this transmittal form to: BP Exploration (Alaska) Inc. Petrotechnical Data Center, LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 to acknowledge receipt of this data. RECEIVED BY: 2r- aLLJ _, State of Alaska AOGCC DATE: 3 2,61�- rl / -l�� , """ STA. 13 1 D [F A ', /SEAN PARNELL,GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONS ERVAI`ION COMMIISSION / ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 18-15C BP Exploration (Alaska), Inc. Permit No: 211-172 Surface Location: 813' FNL, 311' FWL, SEC. 19, T11N, R15E, UM Bottomhole Location: 881' FSL, 1609' FWL, SEC. 18, T11N, R15E, 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, Daniel T. Seamount, Jr. 7 Chair DATED this S day of January, 2012. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA Vi RECE` ALASk,.OIL AND GAS CONSERVATION COMMI_ _.ON � `� LL PERMIT TO DRILL DEC 0 0 2011 20 AAC 25.005 1 a.Type of work: 1 b.Proposed Well Class: ®Development Oil 0 Service-Winj 0 Single Zone 10*N ami e t 1ftam :km ❑ Drill ®Redrill ❑ Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 CoAtnehfme Gas Hydrates ❑ Re-Entry ❑ Exploratory 0 Service-WAG 0 Service-Disp Shale Gas 2. Operator Name: 5.Bond: ® Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU 18-15C 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 11733' ND 8631'ss Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: ADL 028321 813'FNL, 311'FWL,SEC. 19,T11N, R15E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 1523'FNL,2674'FWL, SEC. 19,T11N, R15E, UM January 1,2012 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 881'FSL, 1609'FWL, SEC. 18,T11N, R15E, UM 2560 27,000' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 48' feet 15.Distance to Nearest Well Open Surface: x- 692067 y-5961063 Zone- ASP4 GL Elevation above MSL: feet to Same Pool: 884' 16.Deviated Wells: Kickoff Depth: 9020' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 91 degrees Downhole: 3340 Surface: 2460 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" 3-1/4"X 2-7/8" 6.6#/6.5# L-80 TC-ii/STL.. 3339' 8394' _7929'ss 11733' 8631'ss 136 sx 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): 11818' 8753' None 11818' 8753' See Diagram Casing Length Size Cement Volume MD ND Conductor/Structural 110' 20" 1680#Poleset 110' 110' Surface 2686' 13-3/8" 2500 sx Coldset III.550 sx Coldset II 2686' 2686' Intermediate 8175' 9-5/8" 500 sx Class'G' 8175' 7808' Production Liner 7137' 7" 625 sx Class'G' 2410'-9547' 2410'-8721' Liner 726' 4-1/2" Uncemented Slotted Liner 9384'-10110' 8695'-8740' Liner 1788' 2-7/8" Uncemented Slotted Liner 10030'-11818' 8733'-8753' Perforation Depth MD(ft): Slotted&Perfd: 9433'-11788' Perforation Depth TVD(ft): 8710'-8751' 20.Attachments: 0 Property Plat ® BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis 0 Diverter Sketch 0 Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the fj egoing is true and correct. Contact Zach Sayers,564-5790 Printed 9 Title Engineering Team Leader Prepared By Name/Number: ,../Av Signature Phone o C Phone 564-4711 Date (Z ,f`/r Terrie Hubble,564-4628 Commission Use Only Permit To Drill API Number: Permit Appromal Date: See cover letter for Number: p?/// Z? 50-029-21755-03-00 i Fl 1.01E other requirements Conditions of Approval:?Ifboxis checked,well may not tbbe used to explore for,test,or produce coalbed methane,etgas hydrates,or gas contained shales: Ili Other: s& 3500 /" 3 c, "'a f Samples Req'd: Yes idNo Mud Log Req'd: 0/Yes ®No H2S Measures: 0/Yes 0 No Directional Survey Req'd: 61 Yes 0 No / 7/5--it,„ APPROVED BY THE COMMISSION Date 'O/ / ,COMMISSIONER ow Form 10evi009 This,znit is valid 24 montt f�° ' h e of p r val(20 AAC 25.005(9)) Submit In Duplicate I"3' /i Ufa NAL # /2/3 To: Alaska Oil & Gas Conservation Commission bp From: Zach Sayers CTD Engineer Date: December 1, 2011 Re: 18-15C Permit to Drill Request Approval is requested for a permit to drill a CTD sidetrack from well 18-15. CTD Drill and Complete 18-15C program: Rig Start Date: January 1st, 2012 Pre-Rig Work: (scheduled to begin December 9th, 2011) 1. 0 MIT- IA to 3,000 psi, MIT-OA to 2,000 2. W Cycle LDS; PPPOT- T to 5,000 psi 3. S Dummy WS Drift to deviation 4. F Load & kill well prior to setting WS. Freeze protect well to 2,500' MD 5. E Set through tubing 7" PosiSet plug at 9,060'. 6. E Bail 8 gallons cement on top of PosiSet plug (equal to 5' in 7"CSG). _,, Tse 7. E Set 4-W x 7" through-tubing Whipstock 8. V PT MV, SV, WV 9. 0 Bleed wellhead, production, flow, and GL lines down to zero and blind flange 10. 0 Remove wellhouse, level pad -0-314 11. V Set TWC (Cameron 4-1/16" Type H profile) 24 hrs prior to rig arrival Rig Work: (scheduled to begin January 1st, 2012) " "A 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. 2. Mill 3.80" window at 9,020' and 10' of rathole. Swap the well to Geo-Visc. 3. Drill Build: 4.125" OH, 383' (35 deg/100 planned) with out resistivity 4. Drill Lateral: 4.125" OH, 2,330' (4.5 deg/100 planned) with resistivity /-5. Run Triple Combo Open Hole Logs ,6. Run 3-1/4" x 2-7/8" L-80 liner leaving TOL at 8,39 MD. Z Pump primary cement leaving TOC at 8,910' MD, 28 bbls of 15.8 ppg liner cmt planned 8. Cleanout liner and run MCNL/GR/CCL log. .2u hh/K v�- � 9. Test liner lap to 2,400 psi. 6'Z X.- --- 10.Perforate liner per asset instructions (- 1,000') 11.Set 4-'/2" liner top packer, and test to 2,400 psi 12.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 Geo Vis for milling window and drilling. Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. ,a • All Class I wastes will go to Pad 3 for disposal. Hole size: 4.125" Casing Program: • 3-1/4", 6.6#, L-80, TC-II Solid Liner 8,394' MD — 9,500' MD • 2-7/8", 6.5#, L-80, STL Solid Liner 9,500' MD — 11,733' MD • A minimum of 28 bbls of 15.8 ppg cement will be used for liner cementing. (TOC 8,910' 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 91°. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property — 27,000' to the North. • Distance to nearest well within pool — 884' to 18-16B. Logging • MWD directional, Gamma Ray and Resistivity will be run over all of the open hole section. • Triple Combo Open Hole Logging: Gamma Ray, Induction Resistivity, Density, Neutron. ' • Cased hole GR/CCL/MCNL logs will be run. • Anti-Collision Failures • none Hazards • The maximum recorded H2S level on DS 18 was 70 ppm on well 18-18B on 5/22/2010. Reservoir Pressure • The reservoir pressure on 18-15C is expected to be 3,340 psi at 8,800' TVDSS. (7.3 ppg equivalent). • Maximum expected surface pressure with gas (0.10 psi/ft) to surface is 2,460 psi. Zach Sayers CTD Engineer CC: Well File Sondra Stewman/Terrie Hubble TREE= ' 4-1/16"CIW ACTUATOR= BAKERIC 18-15B ***4-1/2'N CHROME TBG**NGLE>70°@ 9550' KB.ELEV= 48' BF.ELEV= KOP= 3350' 2104' —4-1/2"HES HXO NIPPLE, ID=3.813" Max Angle= 97 @ 10248' 0 Datum MD= 13198' Datum TVD= 8800'SS I. GAS LIFT MANDRELS TOP OF 7"SCAB LNR,263,L-80, ID=6.276" —1 2409' I— Zi (STI MD TVD DEV TYPE VLV LATCH PORT DATE II 4 3008 3008 4 KGB-2 DMY BK 0 05/14/11 13-3/8"CSG,724,L-80,ID=12.347" — 2686' II• 3 4752 4689 19 KGB-2 DMY BK 0 05/14/11 II 2 6375 6213 19 KGB-2 DMY BK 0 04/24/05 0 BTM OF 7"SCAB LNR,263,L-80,ID=6.276" —I 8021' 0or 21 7909 7605 38 KGB-2 DMY BK 0 04/24/05 BKR C-2 TIEBACK SLV,ID=7.50" 8021' 14 9-5/8"CSG MILLOUT WINDOW(18-15A) 9-5/8"X 7"BKR H PKR, ID=6.188" --I 8028' I I l 8175'-8225'(50'W/SECTION MILL) ci• 9-5/8"X 7"BKR HMC HGR,ID=6.188" $034 8355' —14-1/2"HES X NIP, ID=3.813" 9-5/8"CSG,47#,L-80, ID=8.681" — 8175' Ili 8376' H7"X 4-1/2"BKR S-3 PKR,ID=3.875" 8399' —4-1/2"HES X NIP, ID=3.813" �i �i 1 8462' -TUBING STUB(04/17/05) VA 8463' —17"X 4-1/2"UNIQUE OVERSHOT 4-1/2"TBG, 12.6#,13CR VAM TOP 8506' ` 1.1 , 0152 bpf,ID=3.958" ,' 8536' —17"X 4-1/2"BKR S-3 PKR,ID=3.875" 8552' _14-1/2"(MILLED)HES XN NIP,ID=3.80" 8596' —14-1/2"WLEG, ID=4.00" 4-1/2"TBG, 12.6#,L-80,.0152 bpf, ID=3.958" H 8595' I 11110, ? —_I FISH-IBP RUBBER ELEMENTS(4/23/05) This well has been drifted with 3.80" cent 9385' 7"X 4-1/2"TIW SS PKR,ID=4.00" (8/11)and 2.25" cent (10/09)to 9400' MD 4:$ Minimum ID = 2.387" @ 10031" I 9433' I—I4-1/2"PORTEDJT(41'), ID=3.91" 3-1/2" X 2-7/8" LNR XO \ \ \ \ \ \ \ \ \ 7"LNR,29#,L-80,.0371 bpf, ID=6.184" — 9547' \ 10030' —�3.70"BKR G SUB FN,ID=3.00" \ \\I. 10031' H 3-1/2"X 2-7/8"XO, ID=2.387" 4-1/2"SLOTTED LNR, 12.6#,L-80, 0.152 bpf,ID=3.958 —I 10087' \ 4-1/2"SOLID LNR, 12.6#, L-80, .0152 bpf,ID=3.958" H 10110' I \ \ PERFORATION SUMMARY \ \ REF LOG: BHCA ON 05/14/95 \ \ ANGLE AT TOP PERF: 91°@ 9550' \\ \\ 11788' 2-7/8"BAKER Note:Refer to Production DB for historical pert data 2-7/8"SLOTTED LNR,6.5#,L-80, 11788' \ \ //// PACKOFF SIZE SPF INTERVAL Opn/Sqz DATE .0058 bpf,ID=2.387 \ / BUSHING 4-1/2" SLTD 9474-10087 0 05/20/95 0 ID= 1.25" 2-7/8" 4 9550-10000 0 11/11/99 2-7/8"SOLID LNR,6.54,L-80, 11818' 2-7/8" SLTD 10363- 11788 0 05/22/97 .0058 bpf,ID=2.387" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/12/87 ORIGINAL COMPLETION 09/17/06 JGM/PJC DRLG DRAFT CORRECTIONS WELL: 18-15B 05/20/95 RIG SIDETRACK(18-15B) 05/31/11 JMF/PJC GLV 0/0(05/14/11) PERMIT No:'1970720 05/22/97 CTD-EXTEND WELL/ 08/22/11 i)/WR/PJCSSSV PULLED(4/20/08) API No: 50-029-21755-02 05/22/97 RUN 2-7/8"SLTD LNR(18-15C' 10/04/11 EV ADD COMMENTS SEC 19,T11 N,R15E,813'SNL&311'EWL 04/27/05 N4ES RWO 05/08/05 KDC/TLH GLV 0/0 BP Exploration (Alaska) TREE= 4-1/16"CNV 18�15 C WELLHEAD= FMC SA NOTES: WELL ANGLE>70°@ 9550' ACTUATOR= BAKER C ***4-1/2"CHROME TBG*** KB.ELEV= 48' Proposed CTD Sidetrack BF.ELEV= . KOP= 3350' 2104' -j 4-1/2"HES HXO NIPPLE, ID=3.813" Max Angle= 97 @ 10248' Datum MD= 13198' Datum TVD= 8800'SS I. GAS LIFT MANDRELS TOP OF 7"SCAB LNR,263,L-80,ID=6.276" —I 2409' I �� ST� MD TVD DEV TYPE VLV LATCH PORT DATE --- V L 4 3008 3008 4 KGB-2 DMY BK 0 05/14/11 13-3/8"CSG,72#,L-80, ID=12.347" -I 2686' I-4 j I3 4752 4689 19 KGB-2 DMY BK 0 05/14/11 I� 2 6375 6213 19 KGB-2 DMY BK 0 04/24/05 BTM OF 7"SCAB LNR,263,L-80,ID=6.276" — 8021' ' A 21 7909 7605 38 KGB-2 DMY BK 0 04/24/05 i BKR C-2 TIEBACK SLV,ID=7.50" -J 8021' i • 9-5/8"CSG MILLOUT WINDOW(18-15A) 9-5/8"X 7"BKR H PKR,ID=6.188" —I 8028' I I 8175'-8225'(50'W/SECTION MILL) ,' 9-5/8"X 7"BKR HMC HGR, ID=6.188" — 8034' 8355' —14-1/2"HES X NIP,ID=3.813" 9-5/8"CSG,47#,L-80,ID=8.681" —{ 8175' I/ 8376' H 7"X 4-1/2"BKR S-3 PKR,ID=3.875" ,� 8399' _-14-1/2"HES X NIP,ID=3.813" 3.7" deployment sleeve/ 44 W, 8462' ITUBING STUB(04/17/05) 4.5" KB LIP @ 8,394' MD 8463' —17"X4-1/2"UNIQUE OVERSHOT 4-1/2"TBG, 12.6#,13CR VAM TOP I 8506' , 0152 bpf, ID=3.958" ,' 8536' J 7"X 4-1/2"BKR S-3 PKR,ID=3.875" I 8552' _14-1/2"(MILLED)HES XN NIP, ID=3.80" 8596' —I4-1/2"WLEG,ID=4.00" 4-1/2"TBG, 12.6#,L-80, .0152 bpf,ID=3.958" —I 8595' TSGR-8,642' MD Minimum ID = 2.44"@ 9500' TOC 8,910' MD__ 3-3/16" x 2-7/8" XO / 9020' 4 WS TO ALLOW KOP AT 9,020'MD 3-3/16"x 2-7/8"XO @ 9,500' MD _I 9060' -POSI SET PLUG W/CMT ON TOP '''..---- 9385' 47"X 4-1/2"TW SS PKR,ID=4.00" / y: y 9433' —I4-1/2"PORTED JT(41'),ID=3.91" 2-7/8"4.7# L-80 liner �/ c� \ \ \ TD@11,733' MD \ \ 18-15C \ \\ 9547' —17"LNR,29#,L-80, ID=6.184" \ \ 10030' —13.70"BKR G SUB, ID=3.00" \ \ \ \ \ \ \ — PERFORATION SUMMARY 10110' H4-1/2"SOL/SLTD LNR REF LOG: BHCA ON 05/14/95 \ 18-15A ANGLE AT TOP PERF: 91°@ 9550' \ \ Note:Refer to Production DB for historical perf data \ \ SIZE SPF INTERVAL Opn/Sqz DATE \ \ 4-1/2" SLTD 9474-10087 C PENDING \ \ 2-7/8" 4 9550- 10000 C PENDING \ \ 2-7/8" SLTD 10363-11788 C PENDING \ \ 2-7/8"SOLID LNR,6.5#,L-80, --I11818' \ 18-15B .0058 bpf,ID=2.387" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/12/87 ORIGINAL COMPLETION 09/17/06 JGM/PJC DRLG DRAFT CORRECTIONS WELL: 18-15C 05/20/95 RIG SIDETRACK(18-15B) 05/31/11 JMF/PJC GLV C/O(05/14/11) PERMIT No: PENDING 05/22/97 CTD-EXTEND WELL I 08/22/11 JVWR/PJCSSSV PULLED(4/20/08) API No: 50-029-21755-02 05/22/97 RUN 2-7/8"SLTD LNR(18-15C1 11/02/11 EV PROPOSED CTD SEC 19,T11 N,R15E,813'SNL&311'EWL 04/27/05 N4ES RWO 05/08/05 KDC/TLH GLV C/O BP Exploration (Alaska) a ..o ,.., . 4., 5�a4. „1„a m Ia (in t Q o CL a Ia)I X ca 13) '— -0L C 1- 0 Q A . 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CI 2 ,9,,, pp N N N N 3 f BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 18 18-15 18-15C Plan 4 Travelling Cylinder Report 30 November, 2011 114440 !'GIM BPPASSPORT .�� , BAKER : by HUGHES Travelling Cylinder Report 1 NTEQ ....40 Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB DS 18 MD Reference: 31 : 1 5 5/7/1995 00:00 @ 48.00ft(generic drilling rig) Site Error: 0.00ft North Reference: True Reference Well: 18-15 Survey Calculation Method: Minimum Curvature Well Error: O.00ft Output errors are at 1.00 sigma Reference Wellbore 18-15C Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 4 Offset TVD Reference: Offset Datum Reference Plan 4 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 8,999.90 to 11,733.00ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,370.10ft Error Surface: Elliptical Conic Survey Tool Program Date 11/30/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 50.10 8,999.90 Gyro(18-15A) GYD-CT-CMS Gyrodata cont.casing m/s 8,999.90 11,733.00 Plan 4(18-15C) MWD MWD-Standard Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 11,733.00 8,630.66 2-7/8"CTD Liner 2.875 3.750 CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 11/30/2011 11:03:14AM Page 2 of 42 COMPASS 2003.16 Build 73 Mill BPPASSPORT BAKER NUGNEf Travelling Cylinder Report0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB DS 18 MD Reference: 31 :15 5/7/1995 00:00 @ 48.00ft(generic drilling rig) Site Error: 0.00ft North Reference: True Reference Well: 18-15 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore 18-15C Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 4 Offset TVD Reference: Offset Datum 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) Lis DS 02 L2-03-L2-03-L2-03 Out of range L2-03A-L2-03A-L2-03A 9,006.67 13,000.00 857.21 189.53 678.89 Pass-Major Risk L2-10-L2-10-L2-10 9,303.98 9,475.00 730.88 456.39 274.79 Pass-Major Risk L2-13A-L2-13A-L2-13A 10,070.79 13,618.59 1,113.95 175.46 959.79 Pass-Major Risk PB DS 18 18-11 -18-11A-18-11A Out of range 18-11 -18-11 DPN-18-11 DPN Out of range 18-13-18-13-18-13 9,020.00 8,725.00 1,346.18 188.80 1,179.08 Pass-Major Risk 18-13-18-13A-18-13A 9,020.00 8,725.00 1,345.03 188.54 1,178.05 Pass-Major Risk 18-13-18-13B-18-13B 9,020.00 8,725.00 1,345.03 188.54 1,178.05 Pass-Major Risk 18-13-18-13BPB1 -18-13BPB1 9,020.00 8,725.00 1,345.03 188.54 1,178.05 Pass-Major Risk 18-13-18-13BPB2-18-13BPB2 9,020.00 8,725.00 1,345.03 188.54 1,178.05 Pass-Major Risk 18-13-18-13BPB3-18-13BPB3 9,020.00 8,725.00 1,345.03 188.54 1,178.05 Pass-Major Risk 18-13-18-13C-18-13C 9,020.00 8,725.00 1,345.03 188.87 1,177.77 Pass-Major Risk 18-13-18-13PB2-18-13PB2 9,020.00 8,725.00 1,346.18 188.80 1,179.08 Pass-Major Risk 18-13_DO NOT USE-18-13-18-13 9,020.00 8,725.00 1,346.18 189.11 1,178.82 Pass-Major Risk 18-13_DO NOT USE-18-13A-18-13A 9,020.00 8,725.00 1,345.03 188.85 1,177.79 Pass-Major Risk 18-13_DO NOT USE-18-13B-18-13B 9,020.00 8,725.00 1,345.03 188.85 1,177.79 Pass-Major Risk 18-13_DO NOT USE-18-13BPB1 -18-13BPB1 9,020.00 8,725.00 1,345.03 188.85 1,177.79 Pass-Major Risk 18-13_DO NOT USE-18-13BPB2-18-13BPB2 9,020.00 8,725.00 1,345.03 188.85 1,177.79 Pass-Major Risk 18-13_DO NOT USE-18-13BPB3-18-13BPB3 9,020.00 8,725.00 1,345.03 188.85 1,177.79 Pass-Major Risk 18-13_DO NOT USE-18-13C-Plan 5 9,020.00 8,725.00 1,345.03 188.52 1,178.07 Pass-Major Risk 18-13_DO NOT USE-18-13PB2-18-13PB2 9,020.00 8,725.00 1,346.18 189.11 1,178.82 Pass-Major Risk 18-14-18-14-18-14 Out of range 18-14-18-14A-18-14A Out of range 18-14-18-14APB1 -18-14APB1 Out of range 18-14-18-14B-18-14B Out of range 18-14-18-14C-18-14C Out of range 18-14_DIMS-18-14-18-14 Out of range 18-14_DIMS-18-14A-18-14A Out of range 18-14_DIMS-18-146-18-14B Out of range 18-14_DIMS-18-14C-18-14C Out of range 18-15-18-15-18-15 9,010.84 9,050.00 205.99 36.60 189.34 Pass-Major Risk / 18-15-18-15A-18-15A 9,025.10 9,025.00 0.03 2.80 -2.14 FAIL-Major Risk 18-15-18-15B-18-15B 9,025.00 9,025.00 0.03 2.80 -2.14 FAIL-Major Risk 18-16-18-16-18-16 10,528.36 9,050.00 166.99 135.38 31.61 Pass-Major Risk 18-16A-18-16A-18-16A 10,417.37 8,975.00 334.02 130.89 229.54 Pass-Major Risk 18-16B-18-16B-18-16B 10,363.89 9,025.00 340.88 127.70 233.16 Pass-Major Risk 18-18-18-18-18-18 Out of range 18-18-18-18A-18-18A Out of range 18-18-18-18APB1 -18-18APB1 Out of range 18-18-18-18B-18-18B Out of range 18-18-18-18BPB1 -18-18BPB1 Out of range 18-22-18-22-18-22 Out of range 18-22-18-22A-18-22A Out of range 18-24-18-24AL2-18-24AL2 Out of range 18-24_DIMS-18-24-18-24 Out of range 18-24_DIMS-18-24A-18-24A Out of range 18-24_DIMS-18-246-18-24B Out of range 18-25-18-25-18-25 Out of range 18-25A-18-25A-18-25A Out of range , 18-25APB1 -18-25APB1 -18-25APB1 Out of range CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 11/302011 11:03:14AM Page 3 of 42 COMPASS 2003.16 Build 73 Mill BPPASSPORT �,,N+,L BAKER HUGHES Travelling Cylinder Report # + r.p ! INTEQ „i Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-15 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB DS 18 MD Reference: 31 :15 5/7/1995 00:00 @ 48.00ft(generic drilling rig) Site Error: O.00ft North Reference: True Reference Well: 18-15 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore 18-15C Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 4 Offset TVD Reference: Offset Datum 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 DS 18 18 26 18 26 18 26 Out of range 18-26-18-26A-18-26A Out of range 18-26-18-26APB1 -18-26APB1 Out of range 18-26-18-26APB2-18-26APB2 Out of range 18-26-18-26B-18-26B Out of range 18-26-18-26PB1 -18-26PB1 Out of range 18 32 18 32 18 32 9,013.70 8,950.00 892.44 218.17 792.71 Pass-Major Risk 18-32-18-32A-18-32A 9,013.70 8,950.00 892.44 218.49 792.70 Pass-Major Risk 18-32-18-32A-Plan#103 9,013.70 8,950.00 892.44 218.69 792.50 Pass-Major Risk 18-32-18-32B-18-32B 9,013.70 8,950.00 892.44 220.45 792.63 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 11/30/2011 11:03:14AM Page 4 of 42 COMPASS 2003.16 Build 73 • • S. -111311 r c .... t i V IP m if. l :::''7:: . : i ' _ • 0 m N Fl T 'o s / • I o - J N • I . 0 o2m lc- o a v o 2 I N C C� ,- im .. 0 '.III � � m I I 1 g _ = = III II Q a U V VIII ;g Ce 1 _ I i11 III III C� a. ttIC L O = n11111 J O U 0 ._ a - II qO - 0 N N Y I J C Y >III s � mfKI1 — U Oii I I 1 II G I III II N o • 0 Q ,® Q • CZ j c ai a> S r c a j W x _ CO V) U U 2 MIoo u_ m Ct o a ■ .c V W • ` tA S Z V Ilia'U U W▪ te g U C m 111 X111 W II I I A/ • `� . • f' , U of • I illailli I I S �, U U L N 11 • A • , N U U YI n 0. r'\ C7 I��I N.E IMMO P. __ 2 . i = o I =__ U ....: I �`� O f N �o �� o ��I II k `= _ Z .I he U Z it cc :. ' ' • Y▪. N a° 4 n 3 II�, U VIo o U o ra 2 U li • a m • U N C1 I 1" 3 m 3 f II Fw J '¢� zU• n LLe u 0 C.> > `- V a' " 3 U 1 11. xE V = 13 nUm� CO •y U UIONIn ln m E I I I' 'o - .]-d. V lu III 0 0 :-I♦ O.2 a a X 2 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 CpHECKLIST WELL NAME AZ7eV PTD# Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: P.e./Q,De" 2 1/ POOL: .,Q7, ' c Check Box for 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 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 production or production testing of coal bed methane is not allowed for(name of well) until after(Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. 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