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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 18-21B Mill CIBP , Set Polar Choke Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-180 50-029-21944-02-00 15706 Conductor Surface Production Scab Liner Liner 8694 80 3767 9843 5543 6259 13700 20" 13-3/8" 9-5/8" 7" 4-1/2" 8805 45 - 125 48 - 3815 48 - 9891 4358 - 9901 9445 - 15704 45 - 125 48 - 3511 48 - 8275 3965 - 8280 8050 - 8695 15492 470 2260 3090 7020 7500 13700 1490 5020 5750 8160 8430 12560 - 15611 4-1/2" 12.6# 13Cr85 42 - 9454 8787 - 8718 Structural 4-1/2" HES TNT , 9336 , 7989 No SSSV 9336 7989 Bo York Area Operations Manager Dave Bjork David.Bjork@hilcorp.com (907) 564-4672 PRUDHOE BAY / PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028326, 0028321 42 - 8054 207 224 1900 3938 7 423 0 0 211 221 N/A 13b. Pools active after work:PRUDHOE OIL STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 11:07 am, Aug 09, 2024 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2024.08.09 08:49:19 - 08'00' Bo York (1248) RBDMS JSB 082024 DSR-8/12/24WCB 10-1-2024 ACTIVITYDATE SUMMARY 7/14/2024 LRS 72 Assist CTU with paraffin cleanout. Pumped 220 bbls of diesel at 135*F. ***Job Cont to 7-15-2024*** 7/14/2024 CTU#2 (2" CT). Job Scope: Mill CIBP / Set Polar Choke MIRU CTU. Function Test BOP's. PT PCE 300psi Low / 4200psi High. Whp = 2425psi. RIH w/ YJ 2-7/8" Milling BHA + 3.70" Junk Mill. Bullhead 5 bbls 50/50 Meth & 50 bbls 1% KCL w/ Safelube and the well locked up. Seeing paraffin on the pipe. Call out LRS Hot Oil. Pooh. Milling BHA covered in paraffin. Circulate hot diesel to nozzle. RIH w/ jetting with 3.25" JSN taking returns to surface. Broke through bridge @ ~1500' shut choke jet down to 4000' and reciprocate back up to 2500'. Bullhead last 60bbls diesel down backside @ 1.5bpm while POOH. RIH w/ YJ 2-7/8" Milling BHA + 3.70" Junk Mill. Dry tag plug @ 13656' CTM. Flag pipe @ plug and begin milling taking returns to surface. ***In Progress*** 7/15/2024 Finish RD/MO. CTU in control of well per LRS departure. 7/15/2024 CTU#2 (2" CT). Job Scope: Mill CIBP / Set Polar Choke Continue milling on plug @ 13700' MD ( 13653' CTM). Taking returns to surface. Once plug became comprised lost returns to surface and able to bullhead 3.5bpm while continuing to mill. Push plug to 15492' CTM. Trip OOH to above perfs @12500', Dry drift to flag to confirm perfs are clear for polar choke run. POOH. Well on a Vac. RIH w/ Northern Solutions Polar Choke (3.59" OD) w/ 3/8" Orifice. Underbalance well with 156 bbls of diesel. Correct depth at Flag. Set top of Polar Choke @ 13700'. Pooh. While pooh notice pipe coming back wet. Stop Coil. Close pipe/slim ram and changeout packoffs. Re-sume Pooh. Final WHP = 180psi. Recover 1/2" ball. Setting tools show a good set. Rig down CTU. ***Job Complete*** Daily Report of Well Operations PBU 18-21B () Continue milling on plug @ 13700' MD ( 13653' CTM). Taking returns to surface.gg@ ( ) g Once plug became comprised lost returns to surface and able to bullhead 3.5bpmg while continuing to mill Push plug to 15492' CTM yg RIH w/ Northern Solutions Polar Choke (3.59" OD) w/ 3/8" Orifice.() Underbalance well with 156 bbls of diesel. Correct depth at Flag. Set top of Polar Choke @ 13700'. Pooh. CIBP fish and polar choke are correctly shown on the WBS below. -WCB 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 18-21B Extended Perforating Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-180 50-029-21944-02-00 15706 Conductor Surface Production Scab Liner Liner 8694 80 3767 9843 5543 6259 13700 20" 13-3/8" 9-5/8" 7" 4-1/2" 8805 45 - 125 48 - 3815 48 - 9891 4358 - 9901 9445 - 15704 45 - 125 48 - 3511 48 - 8275 3965 - 8280 8050 - 8695 None 470 2260 3090 7020 7500 13700 1490 5020 5750 8160 8430 12560 - 15611 4-1/2" 12.6# 13Cr85 42 - 9454 8787 - 8718 Structural 4-1/2" HES TNT , 9336 , 7989 No SSSV 9336 7989 Bo York Area Operations Manager Dave Bjork david.bjork@hilcorp.com 907-564-4672 PRUDHOE BAY / PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028326, 0028321 42 - 8054 N/A N/A 178 255 1864 3724 5 25 0 0 184 285 323-645 13b. Pools active after work:PRUDHOE OIL STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 1:47 pm, Apr 17, 2024 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2024.04.17 10:24:25 - 08'00' Bo York (1248) DSR-4/23/24 RBDMS JSB 041924 WCB 2024-07-15 ACTIVITYDATE SUMMARY 3/12/2024 CTU #9 - 1.75" Coil 0.156" Wall. Job Scope: Log/Drift. Ext Adperfs Mobilize & MIRU CTU 9. BOP Test NU BOPs. RU Lub & QTS. Trim 50' CT. Function test BOPS M/U BOT CTC and HES GR/CCL. R/U scaffolding, Shut in wing, attempt to bullhead well but would only take injection at low rates. RIH and start tagging near surface, continue pushing restriction but making slow progress, jetting on restriction at apx 1bpm w/ diesel was unsuccessful. made it down to 358' before POOH, tools covered in paraffin. No WSL coverage due to issues on another unit. Rig down scaffolding. RDMO CTU ...Continued to WSR on 3/13/24.... 3/13/2024 CTU #9 - 1.75" Coil 0.156" Wall. Job Scope: Log/Drift. Ext Adperfs Finish RDMO, head back to SLB yard ...Job incomplete.... 3/16/2024 LRS 72 Assist CTU (PROFILE MODIFICATION). Heat 2 UR tanks of 1% KCl to 140*F. ***Job Continued 3-17-24*** 3/17/2024 ***Job Continued from 3-16-24*** Assist CTU (PERFORATING). Heat 2 UR tanks of 1% KCl to 140*F. 3/17/2024 CTU #9 - 1.75" CT .156" WT. Job Scope: Drift MIRU CTU. function test BOPs, MU YJOFS 3.69" milling BHA. Cycle mill up/down from 2500' to Surface melting/jetting Parrifins. Weights look normal. Once at 2500' lost all returns, good injectivity. Continued in hole to drift down to NS CIBP set at 13700' with no issues and all KCL returns going to formation. Confirmed NS CIBP set @ 13681' CTMD. ***Job Continued to 3/18/24****** 3/18/2024 T/I/O = 9/0/0 LRS 46 - Assist CTU (PERFORATING) Pumped 154 bbls 140* Diesel into Coil/TBG, and 61 bbls 140* Diesel into IA to assist CTU. CTU in control of well and DSO notified upon LRS departure. 3/18/2024 CTU #9 - 1.75" CT .156" WT. Job Scope: Perforating POOH with YJ 3.690" Milling Assembly. PT MHA and Safety Joint, BOP Test Criteria. MU HES/YJ logging BHA and RIH. Tagged up at 500', POOH and tools were covered in paraffin. Stack down to clean counter wheel and change nozzle. Rig up LRS hot oil and jet hot diesel in the TBG while RIH with logging tools. RIH to bottom and pumped bottoms up kill. Logged from just above tag in compression @ 13560'. Flagged Pipe @ 12500', FP Coil. Keep hole full with Hot KCL, 8.4 ppg on trip OOH. ***Job Continued to 3/19/24*** Daily Report of Well Operations PBU 18-21B Daily Report of Well Operations PBU 18-21B 3/18/2024 CTU #9 - 1.75" CT .156" WT. Job Scope: Perforating POOH with YJ 3.690" Milling Assembly. MU HES/YJ logging BHA and RIH. Tagged up at 500', POOH and tools were covered in paraffin. Stack down to clean counter wheel and change nozzle. Rig up LRS hot oil and jet hot diesel in the TBG while RIH with logging tools. RIH to bottom and pumped bottoms up kill. Logged from Tag @ 13560'. Flagged Pipe @ 12500', FP Coil. Keep hole full with Hot KCL, 8.4 ppg on trip OOH. ***Job Continued to 3/19/24*** 3/19/2024 CTU #9 - 1.75" CT .156" WT. Job Scope: Perforating Continue POOH and confirm good data (+126' correction). Deploy 500' of HES 2-7/8" Maxforce, 6 SPF, 60 degree phase guns. RIH and correct to top shot at flag. PUH and perforate interval 12,560-13,060. POOH while pumping pipe displacement down CTBS. Undeploy guns, and install night cap. Attempt to load tubing with diesel but pump died and would not restart. SLB NPT 1730-2200 to replace tractor alternator. Load well with Diesel. 220 bbls. Attempt to flush paraffin. 2400 - 2500 psi @ 1.5 BPM injection. Start BOP Test. . ***Job Continued to 3/20/24*** 3/19/2024 CTU #9 - 1.75" CT .156" WT. Job Scope: Perforating Continue POOH and confirm good data (+126' correction). Deploy 500' of HES 2-7/8" Maxforce, 6 SPF, 60 degree phase guns. RIH . ***Job in Progress*** 3/20/2024 CTU #9 - 1.75" CT .156" WT. Job Scope: Perforating BOP Test. RDMO. . ***Job Completed*** 3/20/2024 LRS Well Testing Unit 2. Bgin WSR on 3/20/24. Post CTU Perf. IL well DS18-21 / OL well DS18-12. Begin RU, SB for WS, WS off location, Continue RU. Continue WSR on 3/21/24. 3/21/2024 LRS Well Testing Unit #2. Continue WSR from 03/20/24. Post CTU Perf. IL well 18- 21, OL well 18-12. Continue RU, SB for WS, PT, SB for Ops, Pop Well. Continue WSR on 03/22/24. 3/22/2024 LRS Well Testing Unit #2. Continue WSR from 03/21/24. Post CTU perf. IL well 18- 21. OL well 18-12. SB for Pop in the am. Continue WSR on 03/23/24. 3/23/2024 LRS Well Testing Unit #2. Continue WSR from 03/22/24. Post CTU perf. IL well 18- 21, OL well 18-12. Continue to keep well open to tank farm. Continue WSR on 03/24/24. 3/24/2024 LRS Well Testing Unit #2. Continue WSR from 03/23/24. Post CTU Per. IL well 18- 21, OL well 18-12. Continue to open choke up, Divert fluid to production, solids content minimal. Continue WSR on 03/25/24. 3/25/2024 LRS Well Testing Unit #2. Continue WSR from 03/24/24. Post CTU Per. IL Well 18- 21, OL 18-12. Continue 16hr PBWT. Job Complete. Adperfs are correctly shown on the new WBS, below. -WCB Deploy 500' of HES 2-7/8"g( )y Maxforce, 6 SPF, 60 degree phase guns. RIH and correct to top shot at flag. PUHgg and perforate interval 12,560-13,060. POOH 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 18-21B Extended Perforating Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-180 50-029-21944-02-00 ADL 0028326 , 0028321 15706 Conductor Surface Production Scab Liner Liner 8694 80 3767 9843 5543 6259 13700 20" 13-3/8" 9-5/8" 7" 4-1/2" 8805 45 - 125 48 - 3815 48 - 9891 4358 - 9901 9445 - 15704 2470 45 - 125 48 - 3511 48 - 8275 3965 - 8280 8050 - 8695 None 470 2260 3090 7020 7500 13700 1490 5020 5750 8160 8430 13080 - 15611 4-1/2" 12.6# 13Cr85 42 - 94548797 - 8718 Structural 4-1/2" HES TNT No SSSV 9336 Date: Bo York Operations Manager Dave Bjork David.Bjork@hilcorp.com 907.440.0331 PRUDHOE BAY 12/15/2023 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 / 7989 By Grace Christianson at 1:44 pm, Nov 29, 2023 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2023.11.29 12:48:24 - 09'00' Bo York (1248) 323-645 2470 10-404 DSR-11/29/23MGR30NOV23SFD 12/11/2023*&:JLC 12/11/2023 Brett W. Huber, Sr. Digitally signed by Brett W. Huber, Sr. Date: 2023.12.11 10:00:30 -09'00'12/11/23 RBDMS JSB 121223 Extended Add Perf Procedure 18-21B PTD: 212 180 Well Name:18-21B Add perf API Number:50-029-21944-02 Current Status:Offline Uncompetitive Rig:CTU Estimated Start Date:12/15/2023 Estimated Duration:2days Regulatory Contact:Carrie Janowski Permit to Drill Number:212-180 First Call Engineer:David Bjork (907) 440-0331 (c) Second Call Engineer: AFE Number:Cost / IOR Current Bottom Hole Pressure:3,350 psi @ 8,800’ TVD 7.4 PPGE Max. Anticipated Surface Pressure:2,470psi (Based on 0.1 psi/ft. gas gradient) Last SI WHP: 2400psi (Taken on 1/25/2020 DHD) Min ID:3.725” ID – ‘XN’ @ 9,438’MD Max Angle:104 Deg @15,586’ Reference Log: MCBL SLB 01-Oct 2013 Brief Well Summary: July 2013 rotary sidetrack in Z1A. Currently uncompetitive. Added 430ft of Z1 mid October. Objective: The well struggles to flow after the new perfs were added. We would like to add an additional 500ft of Z1 perforations. Procedure: Coiled Tubing Notes: x Remote gas monitoring for H2S and LELs are required for Open Hole Deployment Operations 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 300 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 = 212 bbls b. 4-1/2” Tubing – 9,445’ X .0152bpf = 144 bbls c. 4-1/2” Liner – 4,445’ X .0152bpf = 68 bbls 4. MU and RIH with drift BHA to resemble 2-7/8” dmy gun. Run past 13,100’ctmd and POOH. MU and RIH with logging tools and log OOH. 5. POOH and confirm good data. 6. Freeze protect tubing as needed. 7. At surface, prepare for deployment of TCP guns. additional 500ft of Z1 perforations. Extended Add Perf Procedure 18-21B PTD: 212 180 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. *Perform drill by picking up 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. 18-21B Addperf Schedule *HES 2-7/8” maxforce guns were used to estimate for this job. 3.047” 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. RBIH to 9,000ft and swap the wellbore to diesel ~135bbls. 16. RDMO CTU. 17. 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 7. Tie In Log/Perf Sheet 8. Sundry Change Form Perf Interval Perf Length Gun Length Weight of Gun (lbs) 12,560’-13,060’ 500’500’6,200lbs (12.4ppf) Extended Add Perf Procedure 18-21B PTD: 212 180 Current Wellbore Schematic Extended Add Perf Procedure 18-21B PTD: 212 180 Proposed Schematic Extended Add Perf Procedure 18-21B PTD: 212 180 Coiled Tubing BOPs Extended Add Perf Procedure 18-21B PTD: 212 180 Standing Orders for Open Hole Well Control during Perf Gun Deployment Extended Add Perf Procedure 18-21B PTD: 212 180 Equipment Layout Diagram Extended Add Perf Procedure 18-21B PTD: 212 180 18-21B Mini Log Extended Add Perf Procedure 18-21B PTD: 212 180 18-21B Tie-In Log Extended Add Perf Procedure 18-21B PTD: 212 180 Extended Add Perf Procedure 18-21B PTD: 212 180 Extended Add Perf Procedure 18-21B PTD: 212 180 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 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 18-21B Extended Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-180 50-029-21944-02-00 15706 Conductor Surface Production Scab Liner Liner 8694 80 3767 9843 5543 6259 13700 20" 13-3/8" 9-5/8" 7" 4-1/2" 8805 45 - 125 48 - 3815 48 - 9891 4358 - 9901 9445 - 15704 45 - 125 48 - 3511 48 - 8275 3965 - 8280 8050 - 8695 None 470 2260 3090 7020 7500 13700 1490 5020 5750 8160 8430 13080 - 15611 4-1/2" 12.6# 13Cr85 42 - 9454 8797 - 8718 Structural 4-1/2" HES TNT Packer 9336, 7989 9336 7989 Bo York Area Operations Manager Dave 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 0028326, 0028321 42 - 8054 N/A N/A 595 121 44966 1314 1005 1 75 20 817 231 13b. Pools active after work:Prudhoe Oil No SSSV Installed 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 323-513 By Samantha Carlisle at 9:23 am, Nov 14, 2023 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2023.11.08 15:34:13 - 09'00' Bo York (1248) WCB 3-14-2024 DSR-11/15/23 RBDMS JSB 111623 ACTIVITY DATE SUMMARY 10/13/2023 CTU #9 1.75" CT. Job Scope: Drift/Log. Set CIBP. Ext Adperfs MIRU CTU 9. Pump 1.188" Drift Ball. Change out Inner Reel Valve. ***Continue on WSR 10/14/23*** 10/14/2023 CTU #9 1.75" CT. Job Scope: Drift/Log. Set CIBP. Ext Adperfs Change out Inner Reel Valve. Change out Suction Mainifold Seal. BOP Test. Eq port failed. Replaced Eq port and retested for a pass. MU NS MHA and HES memory gamma/CCL tool with 3.68" drift nozzle. Freeze protect the flowline 60 bbls 60/40 methanol. Loaded the well with 300 bbs 1%KCL w/ Safelube. 15 bbl meth cap on top . RIH. Drifted to 13872 ctmd. Log up 50 fpm. Paint Flag @ 13.649.68' HES Box. Log up 50 fpm to 12,900'. POOH. BD HES Mem Tools. +23' Corr (OE Verified). MU NS 4-1/2" CIBP. ***Continue on WSR 10/15/23*** 10/15/2023 CTU #9 1.75" CT. Job Scope: Drift/Log. Set CIBP. Ext Adperfs RIH w/ NS 4-1/2" CIBP. Corr Depth at Flag. Set CIBP @ 13,700' Top of Plug. POOH while keepint the hole full. Perform no flow checks. zero losses and pressure test safety joint. MU NS MHA and SLB 2.88" PJO 6 spf 60 degree phase 430' perf gun. Performed table top drill prior to gun make up. RIH. Tag plug 13,684 ctmd. Correct to bottom shot 13699.35, top of plug to bottom shot. PUH to 13,510. Launch 1/2" ball. Perf 13,080-13510. POOH. NO Flow good. Undeploy Spent perf guns. ***Continue on WSR 10/16/23*** 10/16/2023 CTU #9 1.75" CT. Job Scope: Drift/Log. Set CIBP. Ext Adperfs Continue to Undeploy Spent Perf Guns. MU 2.28" JSN BHA Assembly. RIH to 9000' and Circ Well Over to Diesel. POOH. ***Job Complete*** Daily Report of Well Operations PBU 18-21B Set CIBP @ 13,700' Perf 13,080-13510. 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 18-21B Extended Perforating Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-180 50-029-21944-02-00 ADL 0028326 , 0028321 15706 Conductor Surface Production Scab Liner Liner 8694 80 3767 9843 5543 6259 15539 20" 13-3/8" 9-5/8" 7" 4-1/2" 8736 45 - 125 48 - 3815 48 - 9891 4358 - 9901 9445 - 15704 2470 45 - 125 48 - 3511 48 - 8275 3965 - 8280 8050 - 8695 none 470 2260 3090 7020 7500 none 1490 5020 5750 8160 8430 13890 - 15611 4-1/2" 12.6# 13Cr85 42 - 94548800 - 8718 Structural 4-1/2" HES TNT No SSSV 9336 / 7989 Date: Bo York Operations Manager Dave Bjork David.Bjork@hilcorp.com 907.440.0331 PRUDHOE BAY 9/21/23 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 By Grace Christianson at 12:46 pm, Sep 11, 2023 323-513 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2023.09.08 15:19:24 -08'00' MGR22SEP23 10-404 CO 341J SFD DSR-9/12/23SFD 9/13/2023*&: JLC 9/22/2023 09/22/23 Brett W. Huber, Sr. Digitally signed by Brett W. Huber, Sr. Date: 2023.09.22 13:01:02 -08'00' RBDMS JSB 092223 Add Perf Procedure 18-21B PTD:212 180 Well Name:18-21B plug and add perf API Number:50-029-21944-02 Current Status:Offline Uncompetitive Rig:CTU Estimated Start Date:09/21/2023 Estimated Duration:2days Regulatory Contact:Carrie Janowski Permit to Drill Number:212-180 First Call Engineer:David Bjork (907) 440-0331 (c) Second Call Engineer: AFE Number:232-02535 Cost / IOR Current Bottom Hole Pressure:3,350 psi @ 8,800’ TVD 7.4 PPGE Max. Anticipated Surface Pressure:2,470psi (Based on 0.1 psi/ft. gas gradient) Last SI WHP: 2400psi (Taken on 1/25/2020 DHD) Min ID:3.725” ID – ‘XN’ @ 9,438’MD Max Angle:104 Deg @15,586’ Reference Log: MCBL SLB 01-Oct 2013 Brief Well Summary: July 2013 rotary sidetrack in Z1A. Currently uncompetitive. Objective: The objective of this procedure is to plug existing Z1A production and perforate 430ft of Z1B. 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 300 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 = 212 bbls b. 4-1/2” Tubing – 9,445’ X .0152bpf = 144 bbls c. 4-1/2” Liner – 4,445’ X .0152bpf = 68 bbls 4. MU and RIH with drift BHA to resemble 2-7/8” dmy gun. Run past 13,750’ctmd and POOH. MU and RIH with logging tools and log OOH. 5. POOH and confirm good data. 6. Freeze protect tubing as needed. 7. RIH and set 4-1/2” cast iron bridge plug ~ 13,710ft. POOH 8. At surface, prepare for deployment of TCP guns. Add Perf Procedure 18-21B PTD:212 180 9. 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. 10.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. 11. 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. 18-21B Addperf Schedule *HES 2-7/8” maxforce guns were used to estimate for this job. 3.047” gun swell 12. 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. 13. 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. 14. Pump pipe displacement while POOH. Stop at surface to reconfirm well dead and hole full. 15. 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. 16. RBIH to 9,000ft and swap the wellbore to diesel ~ 135bbls. 17. RDMO CTU. 18. 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 7. Tie In Log/Perf Sheet 8. Sundry Change Form Perf Interval Perf Length Gun Length Weight of Gun (lbs) 13,080’-13,510’430’430’5,330lbs (12.4ppf) Add Perf Procedure 18-21B PTD:212 180 Current Wellbore Schematic Add Perf Procedure 18-21B PTD:212 180 Proposed Schematic Add Perf Procedure 18-21B PTD:212 180 Coiled Tubing BOPs Add Perf Procedure 18-21B PTD:212 180 Standing Orders for Open Hole Well Control during Perf Gun Deployment Add Perf Procedure 18-21B PTD:212 180 Equipment Layout Diagram Add Perf Procedure 18-21B PTD:212 180 18-21B Mini Log Add Perf Procedure 18-21B PTD:212 180 18-21B Tie-In Log Add Perf Procedure 18-21B PTD:212 180 Add Perf Procedure 18-21B PTD:212 180 Add Perf Procedure 18-21B PTD:212 180 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 P. RECEIVED A. KA OIL AND GAS CONSERVATION COMh, ,ON REPORT OF SUNDRY WELL OPERATIONS 'APR 0 12015 1 Operations Abandon U Repair Well U Plug Perforations Li Perforate U Other L J k p1612- Performed Alter Casing ❑ Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Ai G CC Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended WOE �`� 2 Operator 4.Well Class Before Work 5 Permit to Drill Number Name BP Exploration(Alaska),Inc Development Exploratory ❑ 212-180-0 3 Address P O Box 196612 Stratigraphic❑ Service ❑✓ 6.API Number Anchorage,AK 99519-6612 50-029-21944-02-00 7 Property Designation(Lease Number) 8 Well Name and Number ADL0028326 PBU 18-21B 9 Logs(List logs and submit electronic and printed data per 20AAC25.071) 10 Field/Pool(s) PRUDHOE BAY,PRUDHOE OIL 11 Present Well Condition Summary- Total Depth measured 15706 feet Plugs measured 15539 feet true vertical 8694 41 feet Junk measured None feet Effective Depth measured 15539 feet Packer measured None feet true vertical 8735 55 feet true vertical None feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20"91 5#H-40 45-125 45-125 1490 470 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate None None None None None None Production See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 13890-14530 feet 14560-14850 feet 14980-15100 feet 15130-15200 feet 15581-15591 feet 15591 -15611 feet True Vertical depth 8800.2-8798 43 feet 8798 44-8795 96 feet 8793 26-8790.84 feet 8789.95-8786 27 feet 8725 49-8723 01 feet 8723 01 -8718.03 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12.Stimulation or cement squeeze summary III Intervals treated(measured): Treatment descriptions including volumes used and final pressure 13 Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation 1665 41680 419 0 1100 Subsequent to operation 1682 35309 1200 0 593 14.Attachments: 15 Well Class after work Copies of Logs and Surveys Run Exploratory❑ Development Q Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work Oil ❑✓ Gas ❑ WDSPLU GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUC-] 17 I hereby certify that the foregoing is true and correct to the best of my knowledge Sundry Number or N/A if C 0 Exempt N/A Contact Nita Summerhays Email Nita Summerhaysabp.com Printed Name Nitaummer:40a Title Petrotechnical Data Engineer i Signatur=ijgripp s fit," Phone 564-4035 Date 4/1/2015 VTL- 1/10/15 -- RBDMSA. APR - 7 2015 ���/� Form 10-404 Revised 10/2012 Submit Original Only Daily Report of Well Operations ADL0028326 CTU 9 w/ 1.75" CT(CV=40.Obbl) Job Scope: Pull 45 KB packer w/orifice&set WFD ER Packer and blank Arrive on location and wait for pad op to complete training. MIRU. Begin weekly BOP test. 2/6/2015 ***Cotinued on 2/7/2015*** CTU 9 w/ 1.75" CT(CV=40.0bbl) ***Continued from 2/6/2015*** Job Scope: Pull 45 KB packer w/orifice &set WFD ER Packer and blank Begin weekly BOP test. FP flowline w/64 bbls of 60/40. FP well with 38 bbls of 60/40 meth. Secure and leave location and standby for weather. 2/7/2015 ***Continued on 2/8/2015*** CTU 9 w/ 1.75" CT(cv=40.0bbl) ***Continued from 2/7/2015*** Job Scope: Pull 45 KB packer w orifice and set WFD ER packer and blank Resume operations. Stab on and RIH with 4"GS fishing string, OAL:32.90'. Tag fish @ 15466'. PU to neutral wt. Paint flag @ 15454 E/ 15524 M. Work fish past multiple sticky spots from —2500' -2000' MD. KB packer is missing one element. ORIFICE STILL .5" ID RIH w/Venturi & 3.69" mule shoe. While RIH, pipe on the reel became severely cross-wrapped and unable to continue past 1686. POOH and repair reel. 2/8/2015 ***Job Continued on 2/9/2015*** CTU 9 w/ 1.75" CT(cv=40.0bbl) ***Continued from 2/8/2015*** Job Scope: Pull 45 KB packer w orifice and set WFD ER packer and blank Continue to POOH to repair reel. OOH with venturi BHA, cut off tools. Start cutting pipe. Got bad spot in pipe free. Cut a total of 1810' of pipe. MU BOT Venturi BHA and RIH 2/9/2015 ***Job Continued on 2/10/15*** CTU 9 w/1.75" CT(cv=36.2bbl) ***Continued from 2/09/15*** Job Scope: Pull 45 KB packer w orifice and set WFD ER packer and blank Continue to RIH with venturi. Stop to repair a hydraulic leak in engine room caused by a failed fitting. Resume RIH. Venturi from 11,250 to TD, FP Coil and POOH. Recover small amount of coil shavings from venturi. No rubber. RIH w/SLB Mem GR/CCL for coil flag log. Log from TD to 14,900' CTMD, Paint flag at 15,465'. POOH with logging tools and download data. 2/10/2015 ***Job Continued on 2/11/15*** 2/10/2015 Assist CTU w/ heating upright. Job cancelled due to fluid in upright being wadded up CTU 9 w/1.75" CT(cv=36.2bbl) ***Continued from 2/10/15*** Job Scope: Pull 45 KB packer w orifice and set WFD ER packer and blank. Download logging data, MU WFD ER packer BHA. Load well with 150bbl of 1% KCL with Safelube followed by 38 bbls of 60/40. Set WFD ER Packer w/ME @ 15550'. POOH MU WFD Orifice sub with anchor seal. 2/11/2015 ***Job continued on 2/12/15*** CTU 9 w/1.75" CT(cv=36.2bbl) ***Continued from 2/11/15*** Job Scope: Pull 45 KB packer w orifice and set WFD ER packer and blank Continue RIH with WFD orifice sub. Latch packer at 100FPM, Pull 5k over, pump off. Left blank office sub with RS latch in packer; top of orifice sub at 15,539.3' MD. POOH. Tools looked good at surface. Pumped 50 bbls of diesel down the flowline and 190 bbls of diesel down the tubing. Attempted to back flow the well with no avail. Call out N2 Pumpers. Pad op confirm well is swapped to LP before N2 lift begins however, pilots are still "gagged" in HP. MU 2.23" JSN BHA for N2 lift. RIH pumping 500scf/min. 2/12/2015 Job in Progress • Daily Report of Well Operations ADL0028326 CTU 9 w/1.75"CT(cv=36.2bbl) ***Continued from 2/12/15*** Job Scope: Pull 45 KB packer w orifice and set WFD ER packer and blank Continue RIH while pumping 500scf/min N2. Well started coming alive/slugging after sitting at 5500'. Let the well unload for a couple hours then POOH slowly. Well slugged/unloaded at-500psi WHP for a couple hours, temp got up to 110degF. Decision to pooh and wean off N2. Once N2 was shut in WHP rose shortly after to -1000psi. Well is flowing good 24MMSCF with no assistance from N2. RDMO. 2/13/2015 Job Complete FLUIDS PUMPED BBLS 600.6 60/40 METH 494 SLICK 1% KCI W/SL 240 DIESEL 1334.6 TOTAL FLUIDS PUMPED GALS 2441 HES LIQUID N2 2441 TOTAL • m a 0 0 0 0 o O o 0 0 0 to N r N 0) CO LO CO 'Cr CD o — �' O O N- O) N LC) LO LO O Ln r c7 V r N CO t� U N o CD 0 0 0 0 CD 0 r O >L 6) co co N— LC) N N CO CY) N r CO V O O V NI- CO r N- CO IC) CO CO Lf) (3) 00 00 6) N r co 6) N 6) p 0co O CO r N 0 N CO CON N N- C) N LC) O r r r ' M 00 r i I I I I I ~ O N r LO N r 6) c N co O AC W (`7 r r LC) 'CI- E O O r 01 O r LO LO LC) CO 6) CO CO ,- a) V 6) 6) d) M 6) 6) O) .F' N 2 COICE 10 Co LC) CO O CO r 00 6) N N N N COCO V CO 'Cr N V V' 'I- C C O Q � J Lc-) LO ooo ,n � 000 C) co co 00 J J !� J C'7 M M r r r J J *k *k tb o *k #k *k •(f� N Ln � tO O CO O O O U CO N N N i10 07:0 O I� LO LO Na7 6) I c 7CO I V V 4 t +-' L0 O CO N N CD O 0 () r (7 r r r 00 N (h 00 c0 N V G) co cf.) 6) co 6) O) 6) J Z Z O O O 3 H H LU O 0. L p O LL LL Z Z Z V Z1-1-11-U0OCCCCCOCCICO O Z ZIYCCDDDDD O J J N1 d CO CO H H H Packers and SSV's Attachment ADL0028326 SW Name Type MD TVD Depscription 18-21B PACKER 4358 3899.75 7" Baker ZXP Top Packer 18-21B PACKER 9336 7923.98 4-1/2" HES TNT Perm Packer 18-21B PACKER 9456 7990.75 4-1/2" Baker ZXP Packer 18-21B PACKER 15539 8670.85 45 KB Packer w/Orifice Sub TIS= pW 41/16" rY NOTES:W ELL ANGLE>70°@ 10240'. VVELL D= 18 21 B -•- ACTUATOR= r BAKER 4-12"CHROME TBG 8 LNR-" OlQ3.BEV 13-3/8"CSG, 68#, -- 64' +Ir I BF. ELEV= KOP- 1300 K-55 BTC, ID= 12.347" Max Angle=104°@ 15586' { 2014' —4-12"FES X NP,D=3.813" Datum MD= WA Datum TVD= 8754'SS 20"CONDUCTOR 91.5#,H-40,D=19.125" 109' I ST MD TV D DEV TY PE VLV LATCH FORT DATE 4 4192 3826 34 MIG DMY RK 16 11/15/13 13-3/8"CSG.684,L-80 BTC,ID= 12.415' --I 3800' 3 6447 5701 35 KBG DMY BK r 20 11/15/13 9-5/8"X 7"FLEXLOCK LTP w/SEALS,ID=6.170' H 435$' •A'-' 2 8051 7021 32 KBG DMY BK 0 07/21/13 1 9152 7880 52 KBG DMY BK 0 07/21/13 9-5/8"X 7"BKR ZXP LTP,D=6.180" —I 4378' 91 2 9-5/8'X 7'FLEXLOCK LNR HGR D=6.180" 4399' 91 91 ; 930T —1-14-1/2"FES X NP,ID=3.813" c' 91 C; I Minimum ID = 3.725" 9438' ,40 ►� ^ 9336' —7"X 4-1/2'1E,TNT PKR,D=3.856" L-1/2" HES XN NIPPLE 5 9368' H4-1/2"FES XMP,D=1813" 9 _ f 9438' —4-1/2'FES XNNE,D=3.725' 81 z4 XI e TOP OF 4-1/2'LNR — 9445' 9 . 9445' H7'X 5"BKR ZXP Ft(R w/11"PBR,D=5.250" x41/2"TBG, 12.6#,13CR-85 VAM TOP, —I 9454' ►4 ► 945'1` 412'WLEG,13=3.958' � I. 0152 bpf,D=3.958" e1 9467' —7"X 5"BKR FLEXLOCK HGR D=4.320" :011 41 e TOP OF 7'LNR H 9586' 91 T SCAB LNR 26#,L-80 VAM TOP HC, — 9603' - ►`o or —9585' — 9-5/8"9-5/8"X 7'11W LNR HGR,D=6.180' .0383 bpf,ID=6.276" 9-5/8"CSG,47#,L-80 AB MOD BUTT,D=8.681" 9875' if 7"WHPSTOCK(0625/13) 9901' 7"LNFt,29#,L-80 BTC, .0371 bpf,ID=6.184'— 9901' 1, ,. 7"MILLOUT WINDOW(18-21 B)9901'-9914' Al i •r ♦,-. •y 1' PERFORATION SLLOAARY i�! REF LOG: ON 07/XX/13 ANGLEAT TOP PBRE 91"@ 13890' Nbte:Refer to Production DB for historical perf data —- SIZE SPF INTERVAL Opn/Sgz SHOT SQZ 2-7/8' 6 13890- 14530 0 07/19/13 $ "r 2-7/8' 6 14560- 14850 0 07/19/13 '4 2-7/8' 6 14980- 15100 0 07/19/13 2-7/8' 6 15130-15200 0 07/19/13 ■ 2-7/8' 6 15581- 15611 0 i 10/01/13 15539' —BKR 45 KB F1(R w/BLNDED ORIFICE Il D=WA(02/12/15)-AOL= 11.33' 94 FBTD — 15618' ;; ', • 4-1/2"LNR, 12.6#, 13CR-85 VT, — 15704' .' r .0152 bpf,ID=3.958" - " - D4TEREV BY COMMENTS DATE REV BY COPJEN S PRUDHOE BAY UNIT _05/19/89 IMT1AL COMPLETION 11/25/13 MBM/JIuD GLV C/O(11/15/13) _ WELL 18-21B 02/25197 CTD SIDETRACK(18-21A) 04/02/14 JC/JMD FINAL ODEAPFROVAL PBRIIT 'b:2121800 07/23/13 P272 SIDETRACK(18-21B) 02/12/15 JLS/PJC PILL 45KB/SET ER FKR w/BLANK API No: 50-029-21944-02 08/02/13 JMD DRLG HO CORRECTIONS SEC 19,T11 N, R15E, 1220'FNL&416'FWL 09/26/13 14113IWJMD GLV C/O(08/30/13) __ 10/06/13 TTR/PJC 45KBPKR(ADFERF(10/01-04/13) BP Exploration(Alaska) D Pc) Q . 4 1 A 1 to vim _ ' Y U > C .✓ v W,W x N c0 fl L C o p v _131 ,...�m w k- >- r c0 p Q�Y as Qi O 0 7 Q G• 0 0O •O -O C com d S 1 O in M) N on )1) In N u) in co o Q! 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They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. 5._=Z c2 - I S-0 Well History File Identifier Organizing (done) ❑ Two-sided ❑ Rescan Needed R CAN: OVERSIZED: NOTES: C for Items: ❑ Maps: Grayscale Items: Logs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: BY: Maria Date: p.. . - /s/ II ' Project Proofing BY: Maria Date: ` /9, /s/ II' P Scanning Preparation 3 x 30 = , + 3 = TOTAL PAGES 1 ` 3 (Count does not include cover sheet) BY: ! Maria Date: da g? 9. /s/ Production Scanning Stage 1 Page Count from Scanned File: ill+ (Count does include cover eet) Page Count Matches Number in Scanning Prep ration: YES NO BY: 415 Date:0101,? / /s/ vYl,P Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Stage 2 Additional Well Reports: YES NO TOTAL PAGES: Digital version appended by: Meredith Michal Date: /s/ Final Page Count: Stage 1 + Stage 2: TOTAL PAGES: Scanning is complete at this point unless rescanning is required. 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N o Z �^A �' N N 5U a v) o U, al Z ' w` E 1 a A J ' UO Z a N J C 0 CQ 4.N 0 Z CL ° U Ce 0 -J a W 01 V $ 0 Z < e N H 7 J o. Y ..a- ° 6 itH M c 10 N 6 O O E 1 U � 0 o J u CO Q Ncta. W c r E C') Z O C )-)- N m Q N m �� ill O o) CM 0 0 ICC re 0_ 0 a z o 4 Q m 0 Z 0i it d • v CD I ' CO o �. CO N y 1 N 1 0 • co d) h. V w C to of E a O E E E 0 0 0 a 0 0 RECEIVED STATE OF ALASKA AL .CA OIL AND GAS CONSERVATION COMM )N NOV 0 4 2013 REPORT OF SUNDRY WELL OPERATIONS AOGCC 1 Operations Abandon U Repair Well U Plug Perforations U Perforate U Other LI Set Downhole Choke Performed Alter Casing 0 Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended WeII❑ 2 Operator 4 Well Class Before Work 5 Permit to Drill Number Name. BP Exploration(Alaska),Inc Developmertj Exploratory ❑ 212-180-0 3.Address. P O Box 196612 Stratigraphies Service ❑ 6.API Number Anchorage,AK 99519-6612 50-029-21944-02-00 ' 7 Property Designation(Lease Number) 8 Well Name and Number ADL0028326 i 11/4Al1002-432.‘ . PBU 18-21B ' 9 Logs(List logs and submit electronic and printed data per 20AAC25 071): 10 Field/Pool(s) 1 PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth measured 15706 feet Plugs measured None feet true vertical 8694 41 feet Junk measured None feet Effective Depth measured 15618 feet Packer measured See Attachment feet true vertical 8716 29 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20"91 5#H-40 45-125 45-125 1490 470 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate None None None None None None Production See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 13890-14530 feet 14560-14850 feet 14980-15100 feet 15130-15200 feet 15581 -15591 feet 15591-15611 feet True Vertical depth 8800 2-8798 43 feet 8798 44-8795.96 feet 8793 26-8790 84 feet 8789 95-8786 27 feet 8725 49-8723 01 feet 8723.01-8718 03 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12 Stimulation or cement squeeze summary Intervals treated(measured): Treatment descnptions including volumes used and final pressure 13 Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation 4139 4839 3039 0 386 Subsequent to operation 5601 434 1813 0 676 14 Attachments 15 Well Class after work Copies of Logs and Surveys Run Exploratory❑ Development Q • Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16 Well Status after work Oil Q • Gas ❑ WDSPL❑ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUC•❑ 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 Garry Catron Email Garrv.CatronABP.Com Printed Name Garry Catron Title PDC PE Signature Ad(,Y a , Phone 564-4424 Date 11/4/2013 Vii F" RBDMS NOV - 5 Form 10-404 Revised 10/2012 Submit Original Only Packers and SSV's Attachment ADL0028326 SW Name Type MD TVD Depscription 18-21B PACKER 4358 3899.75 7" Baker ZXP Top Packer 18-21B PACKER 9336 7923.98 4-1/2" HES TNT Perm Packer 18-21B PACKER 9456 7990.75 4-1/2" Baker ZXP Packer 18-21B PACKER 15560 8665.9 45 KB Packer w/0.5" Orifice Sub d Q C) CD C7 0 0 CD C7 CD 0 CD N ' 6) CN-O Ln CO V (J O V O O ()) N Ln LC) LP O U0 f- 00 V N 00 ti U C5 CD CD CD C5 C) © CD ' C5 L CA CO LU N- u) N N Cr) C`') • N x- N- CO O O m N- CO Ln CO co LC) CA CO CO CA CO N- CD 0) Ch 01 (3) Ni CA O x' Ni Nt • r- N N LC) O O CD 00 00 CO Cr) CO CO Cb H U0 N V co d- p Cb — CO O) N N N ✓ CoChv00 � r-- vNJ- v O) v- 00 OD C M Ln Nt NJ- NI- N O O v- CA 0) U LC) L() CD 0) CO co N- co N T- CD CA CA M CA 0) 0) V CO CD 134-1 N ittM CD LU CO O 00 7- Cb C3) N N N C) N NJ- 01QD CNfoovNv t t O � J F' U0 Ln LO Q LC7 CD 00 0o ao OL L L C OODCCo `n0° 000 OO OO J J Y J 00 01 01 JJA ;5 co • N LC? �# 4# UD CO UD CO CSO UCA N N 0000 Co Eo • f� Ln LO C'? 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ACTUATOR= BAKER JMD DRAFT 1 "'4-1/2"CHROME TBGBLNR' N-MALKB.ELEV= —50' BF.ELEV= NIA 13-3/8"CSG, --1 64' I KOP= 1300' 68#,K-55 2014' —14-1/2-TCI X NP,D=3.813" Max Angle= 104°`, 15586' BTC Datum ND= ID=12.347" Datum TVD= 8754'SS 130"CONDUCTOR,91.5#,H-40,D=19.125" 78' ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 4192 3826 34 MMS DOME RIK 16 08/30/13 13-3/8"CSG,68#,L-80 BTC,D=12.415" —• 3800' 3 6447 5701 35 KBG SO BK r 20 08/30/13 9-5/8'X 7"ZXP HO PKR,D=6.190" _1_ 4358' 2 8051 7021 32 KBG DMY BK 0 07/21/13 9-5/8'X 7"ZXP HD PKR,D=6.190" —I 4378' r ;' 1 9152 7880 52 KBG DMY BK 0 07/21/13 Illi 9-5/8-X T FLEXLOCK LNR HGR,D=6.270" 4399' 930T H4-1/2"VT X NP,ID=3.813" O i 9336' —I 7"X 4-1/2'HES TNT PKR,D=3.856• NlMinimum ID = 3.725" @ 9438' M 4_1 I" VTXNNIPPLE _J 9368' —{a-trz•vTxr�,D=3.813• nki El 9438' —4-12"VT XN NP,D=3.725" LI TOP OF 4-12'LNR 9445' I I 9445' --17"X 5•BKR ZXP PKR w/11'PSR D=5.250" �1�l p . 9454' 4-1/2"WLEG,D=3.958" 4-12'TBG,12.6#,13CR-85 VamTop, — 9454' ; I I .0152 bpf,D=3.958" ; 9467' H7"X 5"BKR FLEXLOCK HGR,D=4.320• LIII TOP OF 7'LNR 9585' El ,. 111 7'SCAB LNR,26#,L-80 VTC,.0383 bpf,0=6.276" —I 9603' 0 -9585' 9-5/8•X T TNV LNR HGR D=6.180" i 9-5/8"CSG,47#,L-80 AB MOD BUTT,D=8.681' — 9875' 7•WHPSTOCK(06/25/13) —{ 9901' r LNR,29#,L-80 BTC,.0371 bpf,13=6.184"—1 9901' ' 7'MILLOUT WINDOW(18-21B)9901'-9914' PERFORATION SUMMARY REF LOG: I ANGLE AT TOP FERE:910 @ 13890' Note:Refer to Production DB for Historical perf data I SIZE SPF METAL Opn/Sqz " SHOT SQZ 2-7/8" 6 13890-14530 0 07/19/13 I 2-7/8" 6 14560-14850 0 07/19/13 2-7/8" 6 14980-15100 0 07/19/13 2-7/8" 6 15130-15200 0 07/19/13 I 2-7/8" 6 15581-15611 0 10/01/13 15560' 1 BKR 45 KB PKR w/1/2"ORFICE, ID=.50" (10/04/13) PBTD -I 15618' ♦, 4-12"LNR, 12.6#,13CR-85 VT, —1 15704' �*�- 2 .0152 bpf,I)=3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDFDEBAY (NIT 05/19/89 IMTIAL COMPLETION WELL: 18-21B 02/25/97 CTD SIDETRACK(18-21A) EU:MT 143:'2121800 07/23/13 P272 SIDETRACK(18-21B) ARNo: 50-029-21944-02 08/02/13 JMD DRLG HO CORRECTIONS SEC 19,T11 N,R15E,1220'FM..&416'FWL . — 09/26/13 MBM/JNU GLV CIO(08/30/13) 10/06/13 TTR/PJC 45KB PKR/ADPEFF(10/01-04/13) BP Exploration(Alaska) 2\22- 1Ig0 L OGGED 232.c 3 /fir-/2013 MKBENDER RECEIVED AUG 26201L AOGCC Mail to: Paper Logs CD ConocoPhillips Alaska Inc. 0 1 Attn: Ricky Elgaricio PO Box 100360 Anchorage, Ak 99510 Exxon Mobil, Alaska 1 1 Attn: Lynda M. Yaskell and/or Leonardo Elias 3700 Centerpointe Dr. Suite 600 Anchorage, AK 99503 State of Alaska - AOGCC 1 1 Attn: Makana Bender 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 DNR - Division of Oil & Gas *** 0 1 Attn: Sean Clifton 550 West 7th Avenue, Suite 802 Anchorage, Alaska 99501 Baker Hughes Inc 0 1 Attn: Sachin Gandra 795E 94th Avenue, Anchorage, Alaska 99515 Total 2 5 j I I m�� 1 Q I- I = E 1 YI ,E." Ca a U - m l° °� • V I , '- av7 L I a •cia �'03 ea I IO 1--- _—� x � � •— I I I a L. L. O sn I O —I �,�// ▪ II �' W el Q ros ✓ > ° -. 0.) C Q O CA �� E 00 N oo .. 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O o o p 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O Y O O\ b O+ 00 m N N N Ol O N — V, N o0 NN E O O Ol N 0% N 00 wt 00 h 'o �+ 0 0 O— N O CO — O C O O O Y 7 S N CO N O O _ n N .Nr Ol N Cr, Ol V•1 N I� a O. — — O O 0' O O 0 0 0 0 .Z N N N N N 7,17'17,1 N N N N N N N N O P4 \ ,,,,„,et N - a 1 Y — N U d o0 oa O N U as 0all0 oa as w U Q — oa a 0 0. —4 C N en ten b 00 O N vl ,0 00 — %0 h ON O N 0 a �- 3 E 9 O 9 O 9 O $ N N N CV m M M Ees .�. 0 2 00 0o oo 00 00 00 00 00 00 00 00 00 00 oo oo 00 00 00 O R i a w :n w` 431 C .- e Wiz;_ O s n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ..; U 4O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ,. 71 r P r r l- r ¢- r r r r F r . . . . . • 0 8o UZ .0l� Kr., OJ r r r r ¢- r r . . . . . . . . . . tr Y om O O 5 N o' ,t10 ao .-1 v a. o N u gE" O v v 0 m COE 14 C) a1 m .N co P CD U P ts. c P LP 'y-la . N TO .Ij ` �n C1 r M r r r M M M M r M r M r r r Cl Cl v N M g Q C�1 F"' r C C C C L P P O. e' Q. CA r r N A1 � .-a Q = 3 3 3 3 3 40 7 3 d 3 3 3 a) 3 3 3 O) ti .-moi O M 9-- N h � 00 M (O W 00 P r O CO M) N — .. 4n 00 CD ._ M f�! N fid X a b'', 1-1,0frit .. p. I x et ct 0 0 0 0 0 0 w 0 0 0 0 0 0 0 -1 -1 O ocE Or 2 2 2 1L 2 _, 1- 2 2 IY 2 2 z z E • i, w a w w w GI w p 00 w w a w w 0 0 w 4X ip O o U Ul O m o en C Pi ii 'a H " X X X X X X X XX X XXX X X X X X al Z __ p ® u 2 Yui CO Ca O+ 2 CD W I' `4 w N. O 01 CO a0co CO N M r O U O O - �1 CD O p o CD p 0 o 0 0 0 0 0 0 0 0 0 0 0 0 \ �' In = 6000000o p 0 0 0 0 0 0 Q 0 0 o eL o V, O" LL . N c ® = L.L. 5 o N u 1 LL. LL o o �; J Oto U_ J (4et ,- UofJu_ JJ v C - a r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 = CU CLO ID in cn vti �w , in 0,a,a- ii, CC al Z cn un < a3 Q c < U < < Q c U J in co m co a/ �, rs W: 2 O N - N 0) CNI M M N Q - F M N N c c o z :�1 cis > z z r N 0 w 0 co w 0 . z 0 vs w ao w w v u O O �' `^ 0 Lu Lit / ca a Qr GA LI C R X a) d V) G C* > LI Q E m STATE OF ALASKA ii 2r1<:, ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG ' 'C '`' 'C. 1a. Well Status: ®Oil•❑Gas ❑SPLUG 0 Other ❑Abandoned ❑Suspended lb. Well Class 20AAC 25105 20AAC 25110 0 Exploratory 0 Stratigraphic ❑GINJ ❑WINJ 0 WAG 0 WDSPL ❑Other No.of Completions One •®Development ❑Service 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. 7/23/2013 • 212-180 ' 3. Address. 6.Date Spudded' 13. API Number P.O. Box 196612,Anchorage,Alaska 99519-6612 6/29/2013 50-029-21944-02-00 . 4a. Location of Well(Governmental Section): 7.Date T.D.Reached. 14. Well Name and Number Surface. 7/12/2013 • PBU 18-21B . 1219'FNL,416'FWL, Sec. 19,T11N, R15E, UM 8. KB(ft above MSL): 64 7' 15.Field/Pool(s) Top of Productive Horizon: 4694'FNL, 1387'FWL, Sec.20,T11N, R15E, UM . GL(ft above MSL): 17.7' Prudhoe Bay/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD) 176' FNL,4936'FWL, Sec.29,T11N, R15E, UM _ 15618' 8716' • 4b. Location of Well(State Base Plane Coordinates,NAD: 10.Total Depth(MD+TVD) 16. Property Designation: Surface: x- 692183 y- 5960659 Zone- ASP4 15706' 8694' . ADL 028321 &028326 TPI: x- 698209 y- 5957340 Zone- ASP4 • 11.SSSV Depth(MD+TVD) 17. Land Use Permit: Total Depth:x- 701780 y- 5956673 Zone- ASP4 None 18. Directional Surve Y: 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): ®Yes ❑No (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 MDITVD: GR/RES/NEU/DEN 9901' 8280' ' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" _ 91.5# H-40 Surface 110' Surface 110' _ 30" 2150#Poleset 13-3/8" 68# K-55/L-80 Surface 3800' Surface 3498' 17-1/2" 2500 sx CS III,600 sx Class'G',250 sx CS II , 9-5/8" 47# L-80 Surface 9876' Surface 8267' 12-1/4" 750 sx Class'G' 7" 26# L-80 4358' 9603' 3964' 8132' Scab Liner 789 sx Class'G' _ 7" 29# L-80 9585' 9901' 8123' 8280' 8-1/2" 550 sx Class'G' 4-1/2" 12.6# 13Cr85 9445' 15704' 8049' 8695' 6" 677 sx Class'G' 24. Open to production or injection? ®Yes ❑No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ND) (MD+TVD of Top&Bottom;Perforation Size and Number): 2-7/8"Gun Diameter,6 spf 4-1/2", 12.6#, 13Cr85 9454' 9336'/7989' i 'tlE�lIUN I0.2413.1 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC.13890'-14530' 8800'-8798' WAS HYDRAULIC FRACTURING USED DURING COMPLETION?❑Yes ®No 14560'-14850' 8798'-8796' f,z. q ar 14980'-15100' 8793'-8791' 1: DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 15130'-15200' 8790'-8786' _•= ».w :.' 2200' Freeze Protect w/151 Bbls Diesel 27. PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc August 7,2013 Flowing Date of Test Hours Tested Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 8/8/2013 12 Test Period 4 1757 1096 961 77 624 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 360 1600 24-Hour Rate 4 3513 2191 1921 N/A 28. CORE DATA Conventional Core(s)Acquired? ❑Yes ®No Sidewall Core(s)Acquired? ❑Yes 0 No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071 RBDMS AUG 2 9 2010 \\ 0 10 None Form 10-407 Revised 10/2012 CONTINUED ON REVERSE Submit Original Only G 29 GEOLOGIC MARKERS(List all formations and m encounter 30. )RMATION TESTS NAME MD TVD Well Tested? 0 Yes ®No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test results. Attach separate sheets to this form,if needed,and submit Permafrost Base detailed test information per 20 AAC 25.071. Shublik C 9932' 8294' None Sadlerochit 9988' 8318' CGL 10312' 8435' Base of CGL/Zone 2C 10562' 8514' 23SB/Zone 2B 10762' 8574' 22TS 10898' 8607' 21 TS/Zone 2A 11244' 8655' Zone 1B 11620' 8702' 14N 11845' 8731' 14P 11933' 8743' TDF/Zone 1A 12060' 8759' 14P(Invert) 15411' 8762' 14N (Invert) 15505' 8743' Zone 1B(Invert) 15548 8733' Zone 2A(From Base) 15652' 8708' Formation at Total Depth: Zone 2A(From Base) 15652' 8708' 31.List of Attachment: Summary of Daily Drilling Reports, LOT/FIT Summary,Well Schematic Diagram, Surveys 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Jorge Cubas, 4-4971 Email: Jorge.Cubas@bp.com Printed Name: Joe Lastufk Title: Drilling Technologist Signature' Phone 564-4091 Date: 1(0/(� INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 10/2012 Submit Original Only BP AMERICA LOT/ FIT Summary Well Name: 18-21B Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) (ppg) 06/27/13 FIT 9,901.00 8,279.58 8.70 561.00 4,302.95 10.00 Page 1 of 1 North America-ALASKA-BP Page 1 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 4/23/2013 15:00 - 21:00 6.00 MOB P PRE SAFETY STAND DOWN WITH RIG CREW. -REVIEW PARKER DRILLING SAFE START UP PROCEDURE. -RELEASED FROM WELL F-13B AT 15:00 HRS. 21:00 - 00:00 3.00 MOB P PRE PREPARE RIG FLOOR FOR SKIDDING. -LAY DOWN MOUSE HOLES -DISCONNECT SERVICE LINES THROUGH RIG FLOOR -TRANSFER DRILL PIPE TO UTILITY SIDE OF PIPE SHED. -OFFLOAD FLUID FROM PITS. -BLOW DOWN WATER,STEAM,AND MUD SYSTEM LINES. 4/24/2013 00:00 - 04:00 4.00 MOB P PRE PREPARE RIG FLOOR FOR SKIDDING. -RIG DOWN MUD LINES. -LOWER PIPE CAT RAMP. -PARK AND SECURE IDL,FORUM CRANE,AND STABBING BOARD. 04:00 - 06:00 2.00 MOB P PRE BRIDLE UP -SECURE TOP DRIVE. -BRIDLE UP BLOCKS. 06:00 - 11:00 5.00 MOB P PRE CONTINUE TO BRIDLE UP. -TIE BACK SERVICE LOOP TO MUD LINE. -RIG DOWN MAN RIDER AND HYDRAULIC TUGGERS. -MOVE WALKWAYS ON RIG ROOF. 11:00 - 12:00 1.00 MOB P PRE SKID RIG FLOOR AND HAUNCH. -PJSM WITH RIG CREW. -SKID RIG FLOOR AND HAUNCH. 12:00 - 13:00 1.00 MOB P PRE PREPARE TO LAY DOWN DERRICK. -RIG DOWN AIRLINE IN DERRICK. -INSPECT DERRICK PRIOR TO LAY DOWN. 13:00 - 14:00 1.00 MOB P PRE LAY DOWN DERRICK. -PJSM WITH RIG CREW. -LAY DOWN DERRICK. 14:00 - 17:00 3.00 MOB P PRE RIG DOWN AND PREPARE TO SEPARATE MODULES. -BLOW DOWN STEAM LINES. -RIG DOWN LINES IN INTERCONNECTS. -START GENERATORS AND SWAP POWER FROM HI-LINE. -SECURE PIPE BARN FOR RIG MOVE. 17:00 - 17:30 0.50 MOB P PRE SAFETY MEETING FOR RIG MOVE. -PJSM TO SEPARATE MODULES. -SAFETY MEETING TO DISCUSS BP RIG MOVE EXPECTATIONS. 17:30 - 23:00 5.50 MOB P PRE SEPARATE MUD MODULE FROM DRILL MODULE. -LAY MATS FOR MUD MODULE. -SEPARATE MUD MODULE AND TURN MODULE TOWARDS PAD ENTRANCE. -SET MODULE DOWN AND TURN TIRES. -INSTALL STEERING TIE RODS IN MUD MODULE. • 23:00 - 00:00 1.00 MOB P PRE ROTATE BOOSTER AXLES. -PJSM WITH RIG CREW. -ROTATE BOOSTER AXLES. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 2 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 4/25/2013 00:00 - 03:00 3.00 MOB P PRE MOVE MUD MODULE TO PAD ENTRANCE. -PJSM WITH RIG CREW. -MOVE MUD MODULE TO PAD ENTRANCE AND STAGE OUT OF WAY. 03:00 - 06:00 3.00 MOB P PRE SEPARATE UTILITY MODULE. -PJSM WITH RIG CREW. -PREPARE TO SEPARATE THE UTILITY MODULE FROM THE DRILL MODULE. 06:00 - 00:00 18.00 MOB N WAIT PRE RIG SHUTDOWN PENDING INVESTIGATION. -INCIDENT IN MUD MODULE CARRIER BAY. -TR@CTION REPORT FORTHCOMING. 4/26/2013 00:00 - 00:00 24.00 MOB N WAIT PRE RIG SHUTDOWN PENDING INVESTIGATION. -INCIDENT IN MUD MODULE CARRIER BAY. -TR@CTION REPORT FORTHCOMING. 4/27/2013 00:00 - 00:00 24.00 MOB N WAIT PRE RIG SHUTDOWN,INVESTIGATION UNDERWAY. -INCIDENT IN MUD MODULE CARRIER BAY. CREWS ARE REVIEWING INCIDENTS AND PERFORMING HAZARD HUNTS THROUGHOUT THE RIG. 4/28/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. '-INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND PERFORMING HAZARD HUNTS THROUGHOUT THE RIG. -REVIEW HAZARD HUNT ITEMS AND DISCUSS. -REVIEW AND REVISE WSP FOR RIG MOVE OPERATIONS. 4/29/2013 00.00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND PERFORMING HAZARD HUNTS THROUGHOUT THE RIG. -REVIEW HAZARD HUNT ITEMS AND DISCUSS. -REVIEW AND REVISE WSP FOR RIG MOVE OPERATIONS. -WATCH"REMEMBER CHARLIE'VIDEO WITH CREWS AND DISCUSS. 4/30/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY PRACTICES(WSP) -REVIEW AND REVISE WSP FOR RIG MOVE OPERATIONS. Printed 8/6/2013 9:06 23AM North America-ALASKA-BP Page 3 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/1/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -REVIEWED ELECTRICAL HAZARD POWER POINT -REVIEWED DROP OBJECTS POWER POINT -REVIEWED PROPER GUARDING POWER POINT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY PRACTICES(WSP) -REVIEW AND REVISE WSP FOR RIG MOVE OPERATIONS. 5/2/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY PRACTICES(WSP) REVIEW AND REVISE WSP FOR RIG MOVE OPERATIONS. -CREWS ARE GOING OVER WELL CONTROL KILL SHEETS • 5/3/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY PRACTICES(WSP) -REVIEW AND REVISE WSP FOR RIG MOVE OPERATIONS. -CREWS COMPLETED AN INTRODUCTION TO WELL CONTROL CLASS. 5/4/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY PRACTICES(WSP) -REVIEW AND REVISE WSP FOR RIG MOVE OPERATIONS. -CREWS COMPLETED AN INTRODUCTION TO WELL CONTROL CLASS. 5/5/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN. -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY PRACTICES(WSP) -REVIEW AND REVISE WSP FOR RIG MOVE OPERATION -REVIEW WELL CONTROL PRESENTATION Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 4 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/6/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY •AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY PRACTICES(WSP) REVIEWAND REVISE WSP FOR RIG MOVE OPERATION 5/7/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT CREWS ARE REVIEWING INCIDENTS AND REVISING PARKER'S WORK SAFETY 'PRACTICES(WSP) REVIEW AND REVISE WSP FOR RIG MOVE OPERATION -CREW CONTINUING HAZARD IDENTIFICATION ON EQUIPMENT 5/8/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT •-REVIEW PERFORMANCE IMPROVEMENT PLAN(PIP) -TAKE PIP TEST -REVIEW LO/TO -REVIEW BP EIGHT GOLDEN RULES -REMOVE ICE FROM WALKWAYS -GENERAL HOUSEKEEPING 5/9/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -SAFETY WALK THROUGH WITH BP MANAGEMENT -REVIEW BP EMS GENERAL COMPLIANCE -REVIEW RIG START UP PLAN -TAKE RIG RE-START TEST -REVIEW BP EIGHT GOLDEN RULES -REMOVE ICE FROM WALKWAYS GENERAL HOUSEKEEPING 5/10/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -REVIEW SAA-RAA TRAINING -SAFETY MEETING WITH PARKER OPERATIONS MANAGER,BOTH CREWS -REVIEW WSP'S AND COMPLETE COMPETENCY TESTING -REMOVE SNOW FROM SUB ROOF AND MOTORS ROOF -GENERAL HOUSEKEEPING Printed 8/6/2013 9.06:23AM North America-ALASKA-BP Page 5 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/11/2013 00:00 - 00:00 24.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -CONDUCT HAZARD WALK THROUGH ON RIG 273,DOCUMENTING FINDINGS -PERFORM PULL TEST ON BEAM IN PIPE SHED ABOVE PIPE SKATE,TESTED TO 7500 LBS. -STENCIL SWL ON PIPE SHED BEAM -REMOVE DRILLING SPOOL FROM BOP DECK -SECURE BRIDGE CRANE TO BOP STACK GENERAL HOUSEKEEPING 5/12/2013 00:00 - 12:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT REVIEW BP EMS BEGIN RELOCATING HYDRAULIC VALVES THAT STEER BOOSTER AXLES IN MUD PIT MODULE GENERAL HOUSEKEEPING 12:00 - 00:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -HENSON CREW ON MANDATORY 12 HOUR SHUTDOWN -CONTINUE RELOCATIING HYDRAULIC VALVES FOR BOOSTER AXLES -REVIEW BP EMS -REVIEW PARKER PERFORMANCE IMPROVEMENT PLAN WITH HENSON CREW, TAKE TEST 5/13/2013 00:00 - 12:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -REPAIR LOVE JOY COUPLING ON FUEL PUMP IN MUD PIT MODULE -PAINTED DESIGNATED EXCLUSION ZONES IN MUD PIT WHEEL WELLS -COMPLETED RELOCATING HYDRAULIC VALVES THAT STEER BOOSTER AXLES IN MUD PIT MODULE GENERAL HOUSEKEEPING 12:00 - 00:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -MEETING WITH PARKER CHAIRMAN AND OPERATIONS MANAGER TO REVIEW PIP AND 18HR LOOK AHEAD PLAN -REVIEW AND TEST ON WSP'S -MEETING WITH SENIOR VP -CAP INTERCONNECT LINES -CONTINUE PAINTING DESIGNATED EXCLUSION ZONES IN MUD PIT WHEEL WELLS -HAZARD HUNT -INVENTORY TOP DRIVE PIPE GUIDES -GENERAL HOUSEKEEPING • 5/14/2013 00:00 - 12:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -GENERAL HOUSEKEEPING -PHASE 2 WEATHER CONDITIONS Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 6 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 00:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -GENERAL HOUSEKEEPING TABLE TOP DISCUSSIONS ON SPILL DRILLS -TABLE TOP DISCUSSIONS ON MAN DOWN IN CONFINED SPACE CHECK ALL CONNECTIONS ON KOOMY SYSTEM. PLACE SIGNS IN MUD MODULE -OPEN RAM DOORS AND INSPECT ALL RAMS FOR HIGH GOR WELL. -PHASE 1 WEATHER CONDITIONS 5/15/2013 00:00 - 12:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT GENERAL HOUSEKEEPING -6 MEMBERS FROM WOODS CREW SENT TO 273 TO HELP WITH RIG MOVE -CREW COMPETENCY TRAINING AND TESTING ON WORK SAFETY PRACTICES 12:00 - 00:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -GENERAL HOUSEKEEPING -CREW COMPETENCY TRAINING AND TESTING ON WORK SAFETY PRACTICES -TEST H2S ALARMS ON RIG -INSTALL BOOSTER WHEEL OPERATOR CONTROL PANEL -ASSIST 273 WITH PREPARATION FOR RIG MOVE. 5/16/2013 00:00 - 12:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -GENERAL HOUSEKEEPING -ASSIST 273 WITH RIG MOVE -CREW COMPETENCY TRAINING AND TESTING ON WORK SAFETY PRACTICES SERVICE CHOKE MANIFOLD 12:00 - 00:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -GENERAL HOUSEKEEPING -ASSIST 273 WITH RIG MOVE -CREW COMPETENCY TRAINING AND TESTING ON WORK SAFETY PRACTICES -INSTALL SAFETY CHAINS ON CARRIER BAY MAN DOORS -WORK TO CLOSE OUT OPEN COACH CARD ITEMS ON SAILS LIST Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 7 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UW: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/17/2013 00:00 - 12:00 12.00 MOB N WAIT PRE SAFETY STAND DOWN -INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT -GENERAL HOUSEKEEPING ASSIST 273 WITH RIG MOVE -CREW COMPETENCY TRAINING AND TESTING ON WORK SAFETY PRACTICES INSTALL SAFETY CHAINS ON CARRIER BAY MAN DOORS WORK TO CLOSE OUT OPEN COACH CARD ITEMS ON SAILS LIST 12:00 - 19:00 7.00 MOB N WAIT PRE SAFETY STAND DOWN INCIDENT IN MUD MODULE CARRIER BAY AND FORKLIFT INCIDENT '-GENERAL HOUSEKEEPING -ASSIST 273 WITH RIG MOVE TOW PAD -DEVELOP PLAN TO MOVE RIG OFF OF WELL AND STAGE MODULES SO THAT NORDIC CAN MOVE ONTO PAD. SIMOPS: SNOW REMOVAL AROUND PAD. 19:00 - 20:30 1.50 MOB N WAIT PRE PRE JOB SAFETY MEETING ON SPLITTING 'MODULES AND MOVING RIG -REVIEW RIG MOVE PLAN ON PAPER. -REVIEW WSP AND JSA FOR SPLITTING MODULES AND MOVING RIG. 20:30 - 22:30 2.00 MOB P PRE PREPARE MODULES PRIOR TO SPLITTING UTILITY MODULE AND DRILL MODULE. -WARM UP HYDRAULICS ON ALL 3 MODULES -ROLL TIRES IN MUD MODULE PRIOR TO MOVING. 22:30 - 00:00 1.50 MOB P PRE MOVE MUD MODULE FROM CENTER OF PAD AND STAGE IN STAGING AREA AT PAD ENTRANCE. 5/18/2013 00:00 - 01:30 1.50 MOB P PRE PRE JOB SAFETY MEETING ON SPLITTING MODULES AND MOVING RIG -REVIEW RIG MOVE PLAN ON PAPER. -REVIEW WSP AND JSA FOR SPLITTING MODULES AND MOVING RIG. 01:30 - 03:00 1.50 MOB P PRE SPLIT UTILITY MODULE FROM DRILL MODULE -TURN TIRES ON UTILITY MODULE -LAY TRANSITION MATS ON UTILITY MODULE SIDE -CRAB UTILITY MODULE AWAY FROM DRILL MODULE -TURN TIRES ON UTILITY MODULE BACK INTO TRAVEL MODE 03:00 - 07:00 4.00 MOB P PRE MOVE DRILL MODULE OFF OF WELLAND STAGE ON EDGE OF PAD -NOTIFIED PAD OPERATOR OF INTENTION TO MOVE RIG OFF WELL -TURN TIRES ON DRILL MODULE -LAY TRANSITION MATS FOR DRILL MODULE -PULL DRILL MODULE OFF OF WELL AND STAGE ON EDGE OF PAD -CYLINDER 12 ON DRILL MODULE LEAKING HYDRAULIC OIL Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 8 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:00 - 08:30 1.50 MOB P PRE MOVE UTILITY MODULE TO EDGE OF PAD TO ALLOW ENOUGH ROOM FOR NORDIC TO GET BY. -CLEAN UP MATS AND STAGE FOR MOVE TO DS 18. •08:30 - 12:00 3.50 MOB N WAIT PRE STAND DOWN OPERATIONS AND ASSIST 273 WITH RIG MOVE TOW PAD. '-GENERAL HOUSEKEEPING -SEND CREW TO ASSIST 273 WITH RIG MOVE. -HYDRAULIC MECHANIC LOOKING AT CYLINDER 12 ON DRILL MODULE 12:00 - 00:00 12.00 MOB N WAIT PRE STAND DOWN OPERATIONS AND ASSIST 273 WITH RIG MOVE TO W PAD. GENERAL HOUSEKEEPING -SEND CREW TO ASSIST 273 WITH RIG MOVE. -DEVELOP PLAN ON PAPER TO REPLACE CYLINDER 12 ON DRILL MODULE. 5/19/2013 00:00 - 08:00 8.00 MOB N WAIT PRE STAND DOWN OPERATIONS AND ASSIST 273 WITH RIG MOVE TOW PAD. -GENERAL HOUSEKEEPING -SEND CREW TO ASSIST 273 WITH RIG MOVE. -LOCATE TOOLS AND EQUIPMENT FOR HYDRAULIC CYLINDER CHANGE. 08:00 - 09:00 1.00 MOB P PRE HELD PRE LIFT MEETING BEFORE PICKING DUMMY WELLHOUSE -REVIEWED LIFTING PERMIT WITH CRANE OPERATOR -REVIEWED JOB JSA WITH CREW INVOLVED IN LIFTING OPERATIONS. 09:00 - 12:00 3.00 MOB P PRE PICK DUMMY WELLHOUSE OFF OF F-13B WITH CRANE AND MOBILIZE TO DS 18-21 B. -OFFLOAD DUMMY WELL HOUSE ON DS 18 WITH PARKER 272 FORKLIFT. 12:00 - 00:00 12.00 MOB N WAIT PRE STAND DOWN OPERATIONS AND ASSIST 273 WITH RIG MOVE TOW PAD. -GENERAL HOUSEKEEPING -SEND CREW TO ASSIST 273 WITH RIG MOVE. 5/20/2013 00:00 - 12:00 12.00 MOB N WAIT PRE STAND DOWN AND ASSIST 273 WITH RIG MOVE TO W PAD. -GENERAL HOUSEKEEPING -SEND CREW TO ASSIST 273 WITH RIG MOVE -LOCATE AND STAGE CRIBBING FOR DRILL MODULE -CLEAN LOCATION AND F-13B WELL CELLAR. 12:00 - 16:00 4.00 MOB N RREP PRE CODE 8 -REMOVE WELL END WALL FROM THE DRILL MODULE CARRIER BAY IN PREPARATION TO REMOVE AND REPLACE HYDRAULIC CYLINDER 12 ON THE MOVING SYSTEM. 16:00 - 23:00 7.00 MOB N WAIT PRE DEVELOP PLAN FOR DEALING WITH SOFT PAD WHERE DRILL MODULE IS LOCATED. CLEAR SNOW AND ICE OFF AND STAGE RIG MATS. 23:00 - 00:00 1.00 MOB N WAIT PRE MOVE DRILL MODULE ONTO RIG MATS. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 9 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date ' From-To Hrs Task Code • NPT NPT Depth Phase Description of Operations (hr) (usft) 5/21/2013 00:00 - 04:30 4.50 MOB N WAIT • PRE INSTALL CRIBBING UNDER DRILL MODULE TO REMOVE AND REPAIR HYDRAULIC CYLINDER 12 ON MOVING SYSTEM. •SIMOPS: PREP UTILITY MODULE TO MOVE AHEAD OF DRILL MODULE AND STAGE FOR RIG MOVE • TO DS 18 04:30 - 05:00 0.50 MOB P PRE PRE JOB SAFETY MEETING FOR MOVING THE UTILITY MODULE -DISCUSSED CLOSE APPROACH WHEN PASSING DRILL MODULE -ASSIGNED EACH SPOTTER A SPECIFIC LOCATION 05:00 - 07:00 2.00 MOB P PRE MOVE UTILITY MODULE AHEAD OF DRILL MODULE AND STAGE FOR RIG MOVE TO DS 18. 07:00 - 15:00 ' 8.00 MOB N WAIT PRE WAIT FOR 273 TO MOVE THEIR CAMP TO MOBIL PAD -COMPLETE PRE-RIG MOVE ROUTE INSPECTION -GENERAL HOUSEKEEPING CONTINUE TO PREP DRILL MODULE FOR HYDRAULIC CYLINDER REPAIR 15:00 - 19:00 4.00 MOB N WAIT PRE CONTINUE TO WAIT FOR 273 TO MOVE THEIR .CAMP GENERAL HOUSEKEEPING -CONTINUE TO PREP DRILL MODULE FOR HYDRAULIC CYLINDER REPAIR ASSIST ELECTRICIAN IN PREPPING CAMP AND SHOP FOR MOVE TO WEST DOCK STAGING AREA 19:00 - 22:00 3.00 MOB N. WAIT PRE CONTINUE TO WAIT FOR 273 TO MOVE THEIR CAMP -GENERAL HOUSEKEEPING -ASSIST HYDRAULIC MECHANICS WITH CYLINDER REPAIR ON DRILL MODULE MOVING SYSTEM -DISCONNECT HYDRAULIC HOSES -REMOVE AXLE CLAMPS AND STUDS **MECHANICS TIMED OUT AT 22:00 HRS** 22:00 - 00:00 2.00 MOB N WAIT PRE CONTINUE TO WAIT FOR 273 TO MOVE THEIR 'CAMP -GENERAL HOUSEKEEPING -CLEAN UP WOOD AND DEBRIS AROUND LOCATION 5/22/2013 00:00 - 04:30 4.50 MOB P PRE MOVE RIG CAMP TO WEST DOCK STAGING AREA. -PREP CAMP FOR MOVE. -CLEAR SNOW AND ICE. -TRUCKS ON LOCATION AT 02:00 CALLED OUT CAT TO HELP PUSH CAMP OUT OF ICE 04:30 - 06:30 2.00 MOB P PRE MOVE RIG CAMP FROM PRICE PAD TO WEST DOCK STAGING AREA. 06:30 - 11:30 5.00 MOB P PRE SPOT AND RIG UP CAMP ON WEST DOCK STAGING AREA. 11:30 - 13:30 2.00 MOB N RREP PRE CODE 8 -WORK ON REPLACING HYDRAULIC CYLINDER 12 ON DRILL MODULE MOVING SYSTEM. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 10 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task • Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:30 - 17:30 4.00 MOB N WAIT PRE RE-SPOT DUMMY WELL HOUSE ON 18-21B. -273 SWAPPED DUMMY WELL HOUSES SIMOPS: •CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. • 17:30 - 20:00 2.50 MOB N WAIT PRE WARM UP HYDRAULICS ON UTILITY MODULE AND PERFORM FINAL CHECKS BEFORE MOVING UTILITY MODULE TO DS 18. SIMOPS: CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. 2000 - 20:30 0.50 MOB P PRE MOVE UTILITY MODULE OFF OF F-PAD -PRE JOB SAFETY MEETING WITH SECURITY. -OFF F-PAD AND ON ACCESS RD AT 20:30. SIMOPS: CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. MECHANICS TIMED OUT** 20:30 - 21:45 1.25 MOB P PRE MOVE UTILITY MODULE ON F-PAD ACCESS ROAD -FROM F-PAD TO SPINE RD. -STOP AT INTERSECTION WITH SPINE AND PERFORM ROUTINE CHECKS. -TURN ON TO SPINE ROAD AT 21:45. SIMOPS: CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. -WORK ON FITTING AND INSTALLING STAND TO PULL CYLINDER. 21:45 - 22:30 0.75 MOB P PRE MOVE UTILITY MODULE ALONG SPINE ROAD. -FROM F-PAD ACCESS ROAD TO SANTA FE PAD. -STOP IN FRONT OF SANTA FE PAD AND CHECK TEMPERATURES. SIMOPS: CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. -WORK ON FITTING AND INSTALLING STAND TO PULL CYLINDER. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 11 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 22:30 - 23:00 0.50 MOB P PRE MOVE UTILITY MODULE ALONG SPINE ROAD. -FROM SANTA FE PAD TO K-PAD ACCESS ROAD. TURN OFF OF SPINE ROAD AT K-PAD ACCESS ROAD. OFF OF SPINE ROAD AT 23:00. SIMOPS: CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. -WORK ON FITTING AND INSTALLING STAND TO PULL CYLINDER. 23:00 - 00:00 1.00 MOB P PRE MOVE UTILITY MODULE ALONG K PAD ACCESS ROAD. SIMOPS: CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. -WORK ON FITTING AND INSTALLING STAND TO PULL CYLINDER. 5/23/2013 00:00 - 02:00 2.00 MOB P I PRE I-MOVE UTILITY MODULE FROM F-PAD TO DS-18 ALONG K-PAD ACCESS ROAD. -FROM INTERSECTION WITH SPINE ROAD TO E-PAD. SIMOPS: CONTINUE TO WORK ON REMOVING HYDRAULIC CYLINDER 12 FROM DRILL MODULE. -WORK ON FITTING AND INSTALLING STAND TO PULL CYLINDER. 02:00 04.00 2.00 MOB P PRE MOVE UTILITY MODULE ALONG K-PAD ACCESS ROAD. -FROM E-PAD TO INTERSECTION WITH WEST DOCK ROAD. OFF OF K-PAD ACCESS ROAD AT 04:00. 04:00 - 06:00 2.00 MOB N RREP PRE CODE 8 -REPAIR GAUGE ON MOVING SYSTEM !-10 GAL HYDRAULIC SPILL ALL IN CONTAINMENT IN THE HPU ROOM ON THE UTILITY MODULE. STOP AT WEST DOCK ROAD INTERSECTION WITH K-PAD AND CLEAN UP HPU ROOM. REPAIR GAUGE AND ADD 10 GAL •HYDRAULIC OIL TO SYSTEM. 06:00 - 11:00 5.00 MOB P PRE MOVE UTILITY MODULE ALONG WEST DOCK ROAD. FROM INTERSECTION WITH K-PAD ACCESS ROAD TO DS-18. ,11:00 - 12:00 1.00 MOB P PRE tSTAGE UTILITY MODULE ON DS-18. 12:00 - 16:00 4.00 MOB N RREP PRE CODE 8 -REMOVE CYLINDER 12 FROM DRILL MODULE MOVING SYSTEM AND TRANSPORT TO CRAZY HORSE PAD TO BE REBUILT. 16:00 - 18:00 2.00 MOB P PRE WARM UP HYDRAULICS ON MUD MODULE AND PERFORM FINAL CHECKS BEFORE MOVING MUD MODULE TO DS 18. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 12 of 56 Operation Summary Report Common Wet Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 ,X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor.PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (usft) 18:00 - 20:00 2.00 MOB N RREP PRE CODE 8 -PULL CHARGE PUMP MOTOR OFF OF CHARGE PUMP#1 AND SEND TO PARKER 273. 20:00 - 20:30 0.50 MOB P PRE MOVE MUD MODULE OFF OF F-PAD -PRE JOB SAFETY MEETING WITH SECURITY. OFF F-PAD AND ON ACCESS RD AT 20:30. 20:30 - 21:15 0.75 MOB P PRE MOVE MUD MODULE ALONG F-PAD ACCESS ROAD -FROM F-PAD TO SPINE RD. -TURN ON TO SPINE ROAD AT 21:15. 21:15 - 22:30 1.25 MOB P PRE MOVE MUD MODULE ALONG SPINE ROAD. -FROM F-PAD ACCESS ROAD TO SANTA FE PAD. -STOP IN FRONT OF SANTA FE PAD AND CHECK TEMPERATURES. 22:30 - 23:00 0.50 MOB P PRE MOVE MUD MODULE ALONG SPINE ROAD. -FROM SANTA FE PAD TO K-PAD ACCESS ROAD. - I-TURN OFF OF SPINE ROAD AT K PAD 'ACCESS ROAD. -OFF OF SPINE ROAD AT 23:00. 23:00 - 00:00 1.00 MOB_ P PRE MOVE MUD MODULE ALONG K PAD ACCESS iI ROAD. -FROM INTERSECTION WITH SPINE ROAD TO G-PAD ACCESS ROAD. 5/24/2013 '00:00 - 01:30 1.50 MOB P PRE MOVE MUD MODULE FROM F-PAD TO DS-18 ALONG K-PAD ACCESS ROAD. -FROM G-PAD TO K PAD. 01:30 03.15 1.75 MOB P PRE MOVE MUD MODULE FROM F-PAD TO DS-18 ALONG K-PAD ACCESS ROAD. -FROM K-PAD TO INTERSECTION WITH WEST DOCK ROAD. 03:15 - 04:00 0.75 MOB P PRE STOP AT INTERSECTION ON WEST DOCK ROAD WITH K-PAD ACCESS ROAD. -PERFORM ROUTINE CHECKS ON MOVING SYSTEM. 04:00 - 06:00 2.00 MOB P PRE •MOVE MUD MODULE FROM F-PAD TO DS-18 ALONG WEST DOCK ROAD. -FROM K-PAD INTERSECTION WITH WEST DOCK ROAD TO AGI-PAD. 06:00 - 10:00 4.00 MOB P PRE MOVE MUD MODULE ALONG WEST DOCK ROAD. -FROM AGI-PAD TO DS-18. 110:00 - 12:00 2.00 MOB P PRE STAGE MUD MODULE ON DS-18. 12:00 - 00:00 12.00 MOB N RREP PRE CODE 8 -ASSIST MECHANICS WITH REBUILDING JACKING CYLINDER 12 FROM DRILL MODULE AT CRAZY HORSE PAD. -GENERAL HOUSEKEEPING AND MAINTENANCE. -SET MATS ON DS 18-21 B. 5/25/2013 00:00 - 03:00 3.00 MOB N RREP PRE CODE 8 -ASSIST MECHANICS WITH REBUILDING JACKING CYLINDER 12 FROM DRILL MODULE AT CRAZY HORSE PAD. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 13 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 09:00 6.00 MOB N WAIT PRE WAITING TO INSTALL JACKING CYLINDER 12 ON DRILL MODULE. -CYLINDER REBUILT AND TEST GOOD IN SHOP. -MECHANICS TIMED OUT. -GENERAL HOUSEKEEPING AND MAINTENANCE. MOBILIZE TOOLS AND PERSONNEL FOR RE-INSTALL OF JACKING CYLINDER. -BED TRUCK MOBILIZED TO PICK UP CYLINDER. 09:00 - 22:00 13.00 MOB N RREP PRE CODE 8 -INSTALL REBUILT JACKING CYLINDER 12 ON DRILL MODULE. 22:00 - 23:30 1.50 MOB N RREP PRE CODE 8 -JACK DRILL MODULE UP AND REMOVE CRIBBING. 23:30 - 00:00 0.50 MOB P PRE WARM UP HYDRAULICS ON DRILL MODULE FOR MOVE TO DS 18. 5/26/2013 00:00 - 01:00 1.00 MOB P PRE MOVE DRILL MODULE OFF OF RIG MATS AND STAGE FOR RIG MOVE TO DS-18. 01:00 - 01:30 0.50 MOB N RREP PRE CODE 8 -RE-INSTALL CENTER SUPPORT POST THAT WAS REMOVED DURING JACKING CYLINDER REPAIR. 01:30 - 02:30 1.00 MOB P PRE PREP DRILL MOD FOR RIG MOVE. -TAKE ON DRILL WATER. -TAKE ON FUEL. -ADD HYDRAULIC OIL TO MOVING SYSTEM RESERVOIR -PERFORM SYSTEM CHECKS. 02:30 - 03:00 0.50 MOB P PRE MOVE DRILL MODULE OFF OF F-PAD -PRE JOB SAFETY MEETING. -OFF F-PAD AND ON ACCESS RD AT 03:00. 03:00 - 03:45 0.75 MOB P PRE MOVE DRILL MODULE ALONG F-PAD ACCESS ROAD -FROM F-PAD TO SPINE RD. -TURN ON TO SPINE ROAD AT 03:45. 03:45 - 06:30 2.75 MOB P PRE MOVE DRILL MODULE ALONG SPINE ROAD. -FROM F-PAD ACCESS ROAD TO SANTA FE PAD. -STOP IN FRONT OF SANTA FE PAD AND CHECK TEMPERATURES. -BREAKER ON COOLING FANS TRIPPED -RESET THERMOSTAT HIGH POINT AND RESET BREAKER. 06:30 - 18:00 11.50 MOB P PRE MOVE DRILL MODULE ALONG WEST DOCK ROAD. -FROM SANTA FE PAD TO K-PAD ACCESS ROAD. -ON K-PAD ACCESS ROAD TO INTERSECTION WITH WEST DOCK ROAD. -ON WEST DOCK ROAD IN FRONT OF OXBOW ROAD AT 18:00HRS. 18:00 - 19:00 1.00 MOB P PRE MOVE DRILL MODULE ALONG WEST DOCK ROAD TO LISBURNE ACCESS ROAD. -TURN ONTO LISBURNE ACCESS ROAD AT 19:00 HRS 19:00 - 21:00 2.00 MOB P PRE MOVE DRILL MODULE FROM WEST DOCK ROAD TO DS-18. -ON DS-18 AT 21:00 HRS. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 14 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 22:00 1.00 MOB P PRE MOVE DRILL MODULE ON DS-18 TO EAST SIDE OF DS-18. -STAGE DRILL MODULE TO RE-INSTALL REAR BLAST DOOR PRIOR TO MOVING OVER WELL. 22:00 - 00:00 2.00 MOB N WAIT PRE REVIEW PARKER PERFORMANCE IMPROVEMENT PLAN AND RESTART AWARENESS TESTING WITH CREW THAT JUST ARRIVED ON SLOPE. 5/27/2013 00:00 - 01:00 1.00 MOB N WAIT PRE SAFETY MEETING WITH CREW THAT JUST ARRIVED ON SLOPE. 01:00 - 06:00 5.00 MOB N RREP PRE CODE 8 RE-INSTALL REAR BLAST DOOR ON DRILL MODULE THAT WAS REMOVED DURING THE JACKING CYLINDER REPAIR PROCESS. -PRE JOB SAFETY MEETING AND WALK DOWN OF JOB WITH RIG MANAGER. SIMOPS: MOVE MUD MODULE TO NORTH END OF PAD AND STAGE FOR MOVE TO EAST SIDE OF PAD. WELLS GROUP NEEDED ROOM TO RIG UP SLICK LINE ON 18-09B. 06:00 - 12:00 6.00 MOB P PRE SPOT DRILL MODULE OVER WELL. -LAY ADDITIONAL MATS TO TRANSITION ONTO 6"MATS. -SPOT DRILL MODULE OVER 18-21 B. -SHIM UP DRILLER'S SIDE OF DRILL MODULE TO LEVEL. -PREP UTILITY MODULE TO MARRY UP WITH DRILL MODULE. 12:00 - 14:00 2.00 MOB P PRE MARRY UP UTILITY MODULE AND DRILL MODULE. 14:00 - 15:00 1.00 MOB P PRE PREP MUD MODULE TO MOVE ONTO MATS AND MARRY UP TO DRILL MODULE. -WARM UP MOVING SYSTEM HYDRAULICS. 15:00 - 17:30 2.50 MOB P PRE MOVE MUD MODULE FROM NORTH END OF PAD TO EDGE OF MATS. 17:30 - 18:30 1.00 MOB P PRE TURN AXLES AND BOOSTERS ON MUD MODULE. -PRE JOB SAFETY MEETING. 18:30 - 20:00 1.50 MOB P PRE MARRY UP MUD MODULE AND DRILL MODULE. -PRE JOB SAFETY MEETING. -LAY OUT PIT LINER FOR UNDER MUD MODULE. -MARRY UP MUD MODULE AND DRILL MODULE. -BERM UP PIT LINER. -PIN CENTER SUPPORT POSTS IN MUD MODULE AND UTILITY MODULE. • 20:00 - 21:00 1.00 MOB P PRE RIG UP ON 18-21B. -MAKE UP INTERCONNECTS BETWEEN MODULES. -SET WALKWAYS ON ROOFS. -PERFORM DERRICK INSPECTION PRIOR TO RAISING MAST. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 15 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 23:00 2.00 MOB P PRE PREPARE TO RAISE MAST. -PRE JOG SAFETY MEETING AND JOB WALK DOWN. -VERIFY PRE RAISING MAST CHECKLIST COMPLETE. 23:00 - 00:00 1.00 MOB P PRE RAISE AND PIN MAST. -MAST CAME OFF STAND AT 520K LBS. -MAX PULL 536K LBS. 5/28/2013 00:00 - 06:00 6.00 MOB P PRE RIG UP AND SKID RIG FLOOR -PRE-JOB SAFETY MEETING ON SKIDDING RIG FLOOR. -SKID RIG FLOOR INTO POSITION. -SLID HAUNCH INTO POSITION. -RIG UP DRILL FLOOR. -CONTINUE TO MAKE UP LINES IN INNER CONNECTS. 06:00 - 11:00 5.00 MOB P PRE RIG UP FLOOR -BRIDLE DOWN -UNTIE SERVICE LOOPS -HANG AND SECURE BRIDLE LINES -TIGHTEN KELLY HOSE -HANG RIG TONGS 11:00 - 21:00 10.00 MOB P PRE LINE UP TOP DRIVE •-CHECK ALIGNMENT OF TOP DRIVE SAVER SUB OVER STUMP -SHIM TOP DRIVE TORQUE TUBE SIMOPS -REMOVED BENT DRAG LINK FROM WELL END OF DRILLER'S MODULE -INSTALL CHARGE PUMP B MOTOR 21:00 - 22:00 1.00 MOB N RREP PRE CODE 8 -REMOVE LINK TILT ARMS TO REPLACE BROKEN SAME ON RIG 273 22:00 - 00:00 2.00 MOB P PRE CONTINUE SHIMMING TOP DRIVE TORQE TUBE 5/29/2013 00:00 - 06:00 6.00 MOB P PRE RIG UP AND SKID RIG FLOOR -CONTINUE SHIMMING TORQUE TUBE AND CHECK SAVER SUB ALIGNMENT -CHECK LINE UP WITH PLUMB BOB,REMOVE 2 EA.WASHERS FROM LOWER TORQUE TUBE 06:00 - 12:00 6.00 MOB P PRE CUTTINGS BOX -BUILD CONTAINMENT -SPOT CUTTINGS BOX SERVICE IRON DERRICKMAN INSTALL SALA BLOCK ON CROWN 12:00 - 18:00 6.00 MOB N WAIT PRE GENERAL HOUSEKEEPING -CLEAN UP SAA IN BOILER ROOM -CLEAN UP UAA IN BOILER ROOM -CLEAN UP RAA IN MOTOR COMPLEX CARRIER BAY REMOVE WASTE WOOD AND DRUMS FROM HOPPER ROOM TROUBLE SHOOT IRON DERRICKMAN QUADCO CALIBRATE PVT SYSTEM Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 16 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 ' End Date:7/14/2013 ,X3-012WM-C:DRILL(5,198,328.00) Project Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM `,Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. 1 UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task r Code NPT NPT Depth Phase j Description of Operations (hr) (usft) 18:00 - 00:00 6.00 MOB N WAIT PRE P/U AND LABEL OILY WASTE BAGS IN MOTOR ROOM CARRIER BAY I i GENERAL HOUSEKEEPING IN MOTOR COMPLEX CARRIER BAY 5/30/2013 00:00 - 06:00 6.00 MOB N WAIT PRE ADJUST TRAVEL LIMITS ON OFF LINE BRIDGE CRANE -PERFORM"AUTHORIZED TO OPERATE" TESTING WITH NEW ROUGHNECK CONTINUE RIG MAINTENANCE 06:00 - 12.00 6.00 MOB N WAIT PRE SERVICE RIG FLOOR EQUIPMENT i I COMPLETE MAINTENANCE WORK ORDERS CONTINUE PERFORMING "AUTHORIZED TO OPERATE'TESTING WITH NEW ROUGHNECK 12:00 - 00:00 12.00 MOB N WAIT PRE GENERAL HOUSEKEEPING REPLACE TWO BOLTS ON TORQUE TUBE -EXISTING BOLTS TOO SHORT FOR LOCKING - MECHANISM ON LOCK NUT TO ENGAGE BOLT ICOMPLETE MAINTENANCE WORK ORDERS -- 5/31/2013 -5/31/2013 00:00 - 06:00 6.00 MOB N WAIT PRE !TORQUE UP THE BLOTS ON THE CRADLE -CHANGE OUT BOLTS ON THE TORQUE TUBE -VARIOUS HOUSEKEEPING PROJECTS -GENERAL RIG MAINTENANCE 06:00 - 12:00 6.00 MOB N WAIT PRE PLACE POWER JACK INTO THE HOPPER ROOM -RAISE CABINETS INTO THE PIPE SHED AND DISTRIBUTE AROUND THE RIG 12:00 - 18:00 6.00 MOB N WAIT PRE TROUBLE SHOOT IRON DERRICKMAN PROBLEMS -GENERAL HOUSEKEEPING AND MAINTENANCE 18:00 - 00:00 6.00 MOB N WAIT PRE INSTALL SECONDARY RESTRAINT ON THE TOP DRIVE PIPE GUIDES -SET UP TIGER TANK AND HARD LINES -GENERAL HOUSEKEEPING AND MAINTENANCE 6/1/2013 00:00 - 06:00 6.00 MOB N WAIT ' PRE CHANGE OUT PIPE WIPER -C/O CASE DRAIN FILTER ON THE HYDRO SYSTEM SERVICE THE RIG FLOOR EQUIPMENT 106:00 - 12:00 6.00 MOB N WAIT PRE GENERAL HOUSEKEEPING AND RIG REPAIRS -TAKE MEASUREMENTS OF THE TORQUE TUBE !12:00 - 14:00 2.00 MOB N WAIT PRE PLUMB BOB AND LASER LEVEL TOP DRIVE 'TORQUE TUBE -SPILL DRILL W/FIRE DRILL SIMOP -AAR ON THE DRILL 14:00 - 00:00 10.00 MOB N WAIT PRE (REPLACE BROKEN PIN IN THE I.T.FRONT END LOADER GENERAL HOUSEKEEPING AND MAINTENANCE Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 17 of 56 Operation Summary Report Common Wet Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud DatelTime:4/27/1989 12:00:00AM 'Rig Release:7/23/2013 Rig Contractor.PARKER DRILLING CO. UWI: Active datum:18-21 B plan 0164.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ (usft) 6/2/2013 00:00 - 06:00 6.00 MOB N WAIT PRE JACK UP MODS TO SHIM -DISCONNECT INNER CONNECTS -REMOVE FLOOR PLATES -DISCONNECT THE FLOW LINE -SHIM RIG TO LEVEL -REINSTALL ALL DISASSEMBLED PARTS OF RIG 06:00 - 12:00 6.00 MOB N WAIT PRE RIG MAINTENANCE -INSPECT THE LUBE PUMP ON THE MUD PUMPS -RE AIRED SHAKER ROOM AIR BOOTS 12:00 - 18:00 6.00 MOB N WAIT PRE REVIEW PIP WITH THE INCOMING CREW -COMPLETED RIG WALK THROUGH -RECHARGE THE NITROGEN FOR THE TD COMPENSATOR -CHECKED LIMITS ON THE FORUM CRANE 18:00 - 00:00 6.00 MOB N WAIT PRE MISC RIG MAINTENANCE -INSTALL SERVICE LOOP SLEEVE PROTECTOR -CHECK LINE UP FOR CIRCULATE FREEZE PROTECT OUT. -STRAP 4"DP IN THE PIPE SHED 6/3/2013 00:00 - 06:00 6.00 MOB N WAIT PRE REVIEW PARKER RE-START SAFETY HAZARD WALKDOWN COMPLETE KNOWN DATA ON KILL SHEET 06 00 - 12:00 6.00 MOB -- N WAIT PRE REPLACE FILTER ON DRAWWORKS GEAR END PREP SHED TO P/U 4"DP PLUMB CHART RECORDER LINE TO DOGHOUSE SIMOPS -SHOOT FLUID LEVEL IN IA,50'BELOW SURFACE 12:00 13'00 1.00 MOB P PRE PJSM -DERRICK INSPECTION -P/U DP FROM PIPE SHED WITH OFFLINE STAND BUILDER 13:00 - 19:00 6.00 MOB P PRE MAKEUP STANDS USEING STAND BUILDER -27 STANDS 4"DP 19:00 - 20:00 1.00 MOB N RREP PRE CODE 8 '-RIG REPAIR -TROUBLE SHOOT IDM -FOUND LOOSE ELECTRICAL CONNECTION. 20:00 - 00:00 4.00 MOB P PRE PICK UP DRILL PIPE OFF LINE USEING STANDE BUILDER -PICK UP 17 MORE STANDS -44 STANDS TOTAL 6/4/2013 00:00 - 02:00 2.00 MOB P PRE PICK UP 13 STANDS DRILL PIPE WITH OFF LINE STAND BUILDER 02:00 - 02:30 0.50 MOB P PRE PERFORM RIG EVACUATION DRILL -RESPONSE TIME 2 MIN 30 SEC -HELD MR WITH CREW 02:30 - 11:30 9.00 MOB P PRE PICK UP 42 STANDS DRILL PIPE WITH OFF LINE STAND BUILDER 11:30 - 12:00 0.50 MOB P PRE SERVICE RIG Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 18 of 56 Operation Summary Report Common Well Name: 18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 14:00 2.00 MOB P PRE TRANSFER 13 STANDS -FROM DS TO ODS -LOAD DRILL PIPE IN SHED 14:00 - 16:00 2.00 MOB P PRE PRE JOB SAFETY MEETING -RIG UP TEST AND BLEED LINE FROM OA TO THE TIGER TANK -RIG UP CIRCULATING LINE FROM THE FREEZE PROTECT MANIFOLD TO IA 1-MAKE UP 50 BBLS 10.3 BRINE 16:00 - 17:30 1.50 MOB P PRE PJSM -WALK ALL LINES WITH WSLAND CREW BLOW THROUGH LINES -FINISH MAKING UP 50 BBLS 10.3 BRINE 17:30 - 19:30 2.00 MOB P I PRE FILL LINES FROM PUMP TO INNER ANNULUS -PRESSURE UP TO 3000 PSI ' -BLEED OFF 200 PSI EVERY 5 MIN -NO VISIBLE LEAKS -ATTEMPT TO PURGE AIR 19:30 - 21:00 1.50 MOB P PRE PJSM I ;-SWITCH LINES TO SECONDARY KILL IMOVE SENSATOR AND CHART RECORDER -ISOLATE THE FREEZE PROTECT MANIFOLD 21:00 - 21:30 0.50 MOB_ P PRE I PRESSURE TEST LINES 250 PSI LOW 2000 PSI HIGH,5 MIN/5 MIN !TEST GOOD 21:30 - 22:30 1.00 MOB P PRE I OPEN IA PUMP 8.5 BBLS TO FILL IA I-.5 BBLSAMIN 1 j-200 PSI -BLEED BACK 7 BBLS 22:30 - 23:00 0.50 MOB j P L PRE MIX 50 BBLS BRINE 10.3 PPG 23:00 - 00:00 1.00 MOB P I PRE I PERFORM ROLLING TEST ON IA MW 10.3 PPG BRINE I-2.5 BPM @ 600 PSI,5 MIN,0 PSI ON TREE, I TEST GOOD -PUMPED AWAY 24 BBLS -BLEED BACK 4 BBLS 6/5/2013 00:00 - 01:00 1.00 MOB P I PRE i BLOW DOWN SECONDARY KILL LINE&HARD I LINE TO TIGER TANK 01:00 - 02:00 1.00 MOB P PRE RIG UP TO PRESSURE TEST OUTER ANNULUS(OA)WITH DIESEL 02:00 - 03:30 1.50 MOB P PRE PRESSURE TEST OA -LOW TEST 250 PSI FOR 5 MIN i -HIGH TEST 2000 PSI=3.1 BBLS,FOR 30 MIN -BLEED TO TIGER TANK BLOW DOWN&RIG DOWN ALL LINES 03:30 - 04:30 1.00 MOB P PRE BLEED HANGER LINES&CONTROL LINES '-ENSURE INNER ANNULUS(IA)IS AT 0 PSI 04:30 - 05:30 1.00 MOB P PRE N/D TREE Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 19 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:30 - 07:00 1.50 MOB P PRE PREPARE WELL HEAD -TERMINATE CONTROL LINES -VERIFY MAKEUP OF 9"LEFT HAND ACME X NC50 CROSSOVER AT 5-3/4 TURNS TO LEFT INSTALL BLANKING SUB AND VERIFY MAKEUP AT 5-3/4 TURNS TO LEFT -INSTALL RETRIEVAL TOOL FOR BLANKING •SUB AND VERIFY MAKEUP AT 8-1/4 TURNS TO THE RIGHT -14 PLUS TURNS TO THE RIGHT TO RETRIEVE BLANKING SUB -REMOVE RETRIEVAL TOOL 07:00 - 12:00 5.00 BOPSUR P PRE N/U BOPE -HOLD PJSM -M/U AND RUN DOUBLE STUDDED ADAPTOR &ALL RISER'S -MOVE BOP OVER WELLHEAD SIM-OPS -LOAD REMAINDER OF DP IN PIPESHED -REPLACE POP-OFF ON PUMP#1 -PREPARE PITS FOR UPCOMING CIRCULATING OPERATIONS MEASURE RKB'S 12:00 - 16:00 4.00 BOPSUR P PRE N/U BOPE -HOLD PJSM -TORQUE FLANGE BOLTS ON BOP -ADJUST STACK WITH TURN BUCKLES -INSTALL FLOW RISER AND FILL LINES -GREASE HCR VALVES -ENERGIZE KOOMEY SIM-OPS -INSTALL LINK TILT LINKAGE ON TD 16:00 - 20:30 4.50 BOPSUR P PRE PREPARE BOPE FOR TESTING -M/U 3-1/2 TEST JOINT W/BLANKING PLUG RETRIEVAL TOOL -RIH M/U TEST JOINT TO BLANKING PLUG-5 TURNS TO THE RIGHT -M/U TOP DRIVE -R/U TEST EQUIPMENT AND LINE UP TO TEST -FILL STACK -CALL AOGCC REP-JOHN CRISP 20:30 - 21:30 1.00 BOPSUR P PRE WAIT ON AOGCC REP-JOHN CRISP MISC RIG MAINTENANCE 21:30 - 00:00 2.50 BOPSUR P PRE TEST BOPE -250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 4-1/2"AND 3-1/2"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -TEST WITNESSED BY AOGCC REP JOHN CRISP 6/6/2013 00:00 - 04:00 4.00 BOPSUR P PRE TEST BOPE -250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 3-1/2"AND 4-1/2"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -TEST WITNESSED BY AOGCC REP JOHN CRISP Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 20 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 I End Date:7/14/2013 'X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:00 - 05:00 1.00 BOPSUR P PRE RIG DOWN TEST TOOLS 05:00 - 05:30 0.50 BOPSUR P PRE INSTALL DUTCH RISER ASSY. 05:30 - 07:30 2.00 BOPSUR P PRE MAKE UP LANDING JT TO PULL HANGER -CLEAR AND CLEAN RIG FLOOR VERIFY 0 PSI ON IA RIG UP OA TO BLEED TANK OPEN UP TO MONITOR 3X PACK OFF CHANGE OUT -OA=O PSI -APPLY STEAM TO THE WELL HEAD 07:30 - 09:30 2.00 BOPSUR P PRE WAIT ON DSM LUBRICATOR -CLEAN AND MAINTAIN THE RIG 09:30 - 11:00 1.50 BOPSUR P PRE PJSM -RIG UP DSM LUBRICATOR -PT TO 250 PSI LOW 3500 PSI HIGH 11:00 - 12:00 1.00 BOPSUR P PRE MAKEUP LANDING JT PULL DART ASSY. -LAY DOWN THE SAME _ 12:00 - 13:00 1.00 BOPSUR P PRE RUN IN HOLE -MAKE UP TO BPV 13:00 - 14:00 1.00 BOPSUR P PRE RIG UP DUTCH RISER AND LUBRICATOR W/ QUICK TEST CONNECTION -CLOSE ANNULAR -RIG UP TEST EQUIMENT -TEST DUTCH RISER 250PSI LOW 3500 PSI HIGH 14:00 - 14:30 0.50 BOPSUR P PRE RIH W/LANDING JT -RETRIEVE BLANK/DART ASSY. -LAY DOWN THE SAME 14:30 - 16:30 2.00 DHB P DECOMP RIG UP DUTCH RISER AND LUBRICATOR -CLOSE ANNULAR -TEST QUICK CONNECTS -RETRIEVE THE BPV -LD THE LUBRICATOR,BPV, DUTCH RISER 16:30 - 18:30 2.00 WHSUR P DECOMP PJSM TO REVERSE CIRCULATE '-BLOW THRU CIRC LINE -WALK DOWN LINE UP PT LINES©300 PSI LOW/2500 PSI HIGH FILL LINES 10 BBL CIRC 10 BBL DOWN IA,3 BPM,360 PSI -26 BBL DOWN TBG,3 BPM,355 PSI -NO LOSSES 15 BBLS DIESEL RECOVERED 18:30 - 19:30 1.00 WHSUR I P DECOMP MONITOR WELL 15 MIN -STATIC 19:30 - 20:30 1.00 WHSUR P DECOMP PJSM TO RIH -RIH WITH LANDING JT -MAKE UP TO TUBING HANGER -MAKE UP TOP DRIVE -BACK OUT LOCK DOWN SCREWS 20:30 - 21:00 0.50 WHSUR P DECOMP WORK PIPE F/35K T/156K -UNSEAT HANGER @ 156K -2'PIPE MOVEMENT 21:00 - 21:30 0.50 WHSUR P DECOMP WORK PIPE F/135-160K -UNABLE TO BREAK PIPE FREE -CONTACT ODE,DRLG.SUPT,WTL,ETL - RECEIVE APPROVED OPERATIONAL CHANGE NOTICE Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 21 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan t 64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 121:30 - 00:00 2.50 WHSUR N DPRB DECOMP CONTACT SCHLUMBERGER E-LINE, SCHEDULE TBG CUT CIRCULATE AND CONDITION -PUMP 20 BBL TO FILL HOLE CLOSE ANNULAR,CIRC THRU CHOKE, -CIRC 270 BBLS,3 BPM,250 PSI -NO LOSSES -MW IN 10.3 PPG MW OUT 9.8 PPG,AFTER 270 BBLS PUMPED -STOP PUMPING,LINE UP TO TAKE RETURNS TO SEPARATE PIT 6/7/2013 00:00 - 02:30 2.50 WHSUR N DPRB DECOMP CONTINUE CIRCULATE AND CONDITION -CLOSE ANNULAR,CIRC THRU CHOKE, -CIRC 630 BBLS,4 BPM,325 PSI,1.3 X'S BUS -NO LOSSES -MW IN 1.0.3 PPG MW OUT 10.3 PPG 02:30 - 03:00 0.50 PULL N DPRB DECOMP MONITOR WELL STATIC 03:00 - 04:00 1.00 WHSUR N DPRB DECOMP DRAIN STACK -LAND HANGER -RUN IN LOCK DOWN SCREWS,FMC WELL HEAD HAND PRESENT 04:00 - 05:00 1.00 PULL N DPRB DECOMP !M/U TO HANGER R/D 4"LANDING JOINT -R/U 5"LANDING JOINT -MAKE UP TO TUBING HANGER -ALL TUBULARS DRIFTED TO 2.62"TO CLEAR E-LINE CUTTER 05:00 - 07:00 2.00 CUT N DPRB DECOMP R/U SLB E-LINE -PJSM HELD -DRESS OUT BAD POINT ON E-LINE 07:00 - 07:30 0.50 CUT N DPRB DECOMP SLB E-LINE CREW CHANGE 07:30 - 08:30 1.00 CUT N DPRB DECOMP PJSM FOR R/U OF E-LINE -NEW SLB E-LINE CREW BP PERSONNEL PRESENT: OPS MANAGER, WTL,&DRLG SUPT 08:30 - 12:00 3.50 CUT N SFAL DECOMP R/U SLB E-LINE -CONTINUE RIGGING UP E-LINE EQUIPMENT i I ON RIG FLOOR I-DEFECT IN WIRE OBSERVED -SLB CALL TOWN&DECISION MADE TO REDRESS BAD POINT ON E-LINE -IA=0PSI OA=0 PSI 12:00 - 13:00 1.00 CUT N SFAL DECOMP RE-HEAD SLB E-LINE AFTER REPAIR WORK 13:00 - 15:30 2.50 CUT N DPRB DECOMP R/U SLB E-LINE -HANG WIRE IN SHEAVE R/U LUBRICATOR&PACKOFF -FILL TUBING W/14 BBLS 10.3 PPG BRINE 15:30 - 16:00 0.50 CUT N SFAL DECOMP TWAIT ON SLB BOP CONTROL HOSES -----------_-_- 16:00 - 17:00 1.00 CUT N SFAL DECOMP FILL LUBRICATOR W/DIESEL -LEAK FOUND -CHANGE OUT O-RING -TIGHTEN GAUGE PURGE AIR OUT Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 22 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:00 - 17:30 0.50 CUT N DPRB DECOMP PT SLB LUBRICATOR -250 PSI LOW -3500 PSI HIGH -5 MIN EACH ALL TESTS CHARTED 17:30 - 20:00 2.50 CUT N SFAL DECOMP R/U SLB E-LINE -DRAIN DIESEL FROM LUBRICATOR -B/O SLB QUICK TEST CONNECTION -TROUBLE GETTING WIRE AND TOOLSTRING OUT OF FLOW TUBE AND BOP ASSY -WORK WIRE AND TOOLS LOOSE AND CHANGE OUT WEIGHT BARS ON TOOL STRING 20:00 - 21:30 1.50 CUT N DPRB DECOMP R/U SLB E-LINE -CONSULT WITH TOWN ON CUT DEPTH -FILL TUBING W/13 BBLS 10.3 PPG BRINE -M/U JET CUTTER 21:30 - 00:00 2.50 CUT N • DPRB 8,900.00 DECOMP RIH W/SLB E-LINE •-FROM SURF TO 8900'W/L DEPTH TROUBLE SHOOT CCL 0.5 HRS,UN-CLEAR SURVEY POINT -CORRELATING LOGS 6/8/2013 00:00 - 02:45 2.75 CUT N DPRB 9,957.00 DECOMP CONTINUE RIH W/SLB E-LINE RST LOG,03/2013 AND COIL FLAG LOG,03/ 2013 USED TO CORRELATE DEPTH F/ CUTTING RUN -TECHLOG 6/7/2013 W/GAMMA RAY ALSO COMPARED TO RST,COIL FLAG FOR CUTTING RUN -IDENTIFIED GLM AT 8385 AND X NIPPLE AT 8809',CONTINUED TO CUTTING DEPTH AT 9925' LOG DEPTH DID NOT AGREE W/PARKER 272 RKB -VERIFIED W/SCHLUMBERGER AND WIRE LINE WSL THAT LOG DEPTH WAS CORRELATED TO ORIGINAL TBG TALLEY -NOTIFIED ODE AND DRLG SUPT TO DISCUSS DISCREPANCY -COUNT COLLARS BELOW X NIPPLE TO VERIFY DEPTH,CUT DEPTH 9925 LOCATED ON 36TH JOINT BELOW X NIPPLE X NIPPLE AND GLM FOUND TO BE WITHIN 1' OF E-LINE DEPTH USING 28E RKB -WIRE LINE WSL OPPOSED CUTTING TBG IN MIDDLE OF JOINT AT 9925,COULD DAMAGE 7'CASING -CONTACT ODE,DRLG.SUPT,AND WTL TO GET PERMISSION TO CUT AT 9915' -DIRECTED TO CUT LOWER AT 9953'NEAR BOTTOM COLLAR OF TBG LOG BACK UP TO CUTTING DEPTH -CUT TBG AT 9938'CORRELATED TO NABORS 28E RKB,9957'CORRELATED TO PARKER 272 RKB 02:45 - 04:30 1.75 CUT N DPRB 200.00 DECOMP POOH W/E-LINE -F/9957'T/200' Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 23 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:30 - 05:00 0.50 CUT N DPRB DECOMP PJSM FOR LAY DOWN OF E-LINE -LAY DOWN E-LINE FLOW TUBES,BOP'S, PUMP IN SUB,X-OVER -SET E-LINE ASIDE 05:00 - 05:30 0.50 WHSUR P DECOMP RIG UP TO PULL HANGER -CHANGE LANDING JT TO 4" -MAKE UP LANDING JT TO HANGER '-BACK OUT LOCK DOWN SCREWS 05:30 - 06:00 0.50 WHSUR P DECOMP ATTEMPT TO UN SEAT HANGER -85K,110K,125K,135K,147K -HANGER UN SEATS @ 147K -PU WT 137K SO WT 115K -FILL BACK SIDE OF CASING W/8.5 BBLS OF 10.3 PPG BRINE -MONITOR WELL,STATIC 06:00 - 09:00 3.00 CASING P DECOMP CIRCULATE WELL BORE -2X CBU I-PUMP 25 BBLS PILL OF BARACLEAN SURFACE TO SURFACE -STAGE UP PUMPS TO 7 BPM @ 730 PSI 1-LAY DOWN E-LINE EQUIMENT 1-DUMP 25 BBL SWEEP ON RETURN TO ,SURFACE _ 09:00 - 10:30 1.50 CASING P DECOMP ;RIG UP TO POOH W/4 1/2"AND 3 1/2" TUBING. -RIG UP CONTROL LINE SPOOLER&TOOLS _ 10:30 - 11:00 0.50 WHSUR P DECOMP SERVICE TRIP NIPPLE ON BOP STACK 11:00 - 12:00 1.00 PULL P DECOMP POOH ON ELEVATORS -MUD WEIGHT:10.3 PPG IN,10.3 PPG OUT -FROM 9957'MD TO 9697'MD H PU 130K,SO 115K AT 9697'MD SPR'S:9,420'MD, MW=10.3 PPG #1 MP-20/30/40 SPM=65/140/240 PSI #2 MP-20%30/40 SPM=65/130/250 PSI 12:00 - 19:30 7.50 PULL P DECOMP PUMP 20 BBL DRY JOB CONTINUE POOH ON ELEVATORS -MUD WEIGHT:10.3 PPG IN,10.3 PPG OUT 1-FROM 9697'MD TO 5914'MD PU 82K,SO 82K AT 5914' R/U FOR 3 1/2"TUBING - 20:00 0.50 PULL DECOMP 19:30 SLAY DOWN CONTROL LINE SPOOL P NOTE: 20:00 HRS CONTACTED ODE REQUEST REDUCING MW F/10.3 PPG MW T/10.2 PPG MW,WTL APPROVED CHANGE 20:00 - 21:00 1.00 PULL P DECOMP LOAD 41/7 TBG OUT OF PIPE SHED 21:00 - 00:00 3.00 PULL P DECOMP CONTINUE POOH ON ELEVATORS -MUD WEIGHT:10.3 PPG IN,10.3 PPG OUT -FROM 5914'MD TO 4276'MD -PU 68K,SO 68K AT 4276 LAY DOWN 52 JOINTS 31/2 TOTAL,1 GLM 6/9/2013 00:00 - 06:30 6.50 PULL P DECOMP CONTINUE POOH ON ELEVATORS -MUD WEIGHT:10.3 PPG IN,10.3 PPG OUT • -FROM 4276'MD TO 563'MD Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 24 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UW: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:30 - 00:00 17.50 PULL N HMAN 563.00 DECOMP DROPPED OBJECT -INADVERTANTLY OPENED ELEVATORS DROPPED 3-1/2 TBG DOWN PIPE SKATE -GO TO STANDDOWN PENDING i INVESTIGATION SAFETY STANDDOWN '-REVIEW DROPPED OBJECT INCIDENT -CARRY OUT DERRICK INSPECTION -REMOVE TWO PART SHACKLES AND REPLACE WITH FOUR PART -REVIEW WSP'S -HOUSEKEEPING NOTE:TOTAL LOSSES 105 BBLS -MUD WEIGHT:10.3 PPG IN,10.3 PPG OUT 6/10/2013 00:00 - 12:00 12.00 PULL N HMAN 563.00 DECOMP SAFETY STAND DOWN -SPILL DRILL W/AAR FOR ALL HANDS -MAN RIDER EMERGENCY DECENT DEVICE TRAINING HOUSE KEEPING AND CLEANING -RIG MAINTENANCE 12:00 - 00:00 12.00 PULL N HMAN 563.00 DECOMP SAFETY STAND DOWN RIG MAINTENANCE -INSTALL FLOOR IN WELL HOUSE -IDL INSPECTION -SERVICE DRAW WORKS -DRAFT UP JSA FOR USING YT ELEVATORS FOR LYING DOWN TUBING -4 HANDS TO DS-2,CLEAN UP OF DEBRIS FROM 273 RIG MOVE -MONITOR WELL CALL LOSSES EVERY 1 HR NOTE: TOTAL LOSSES 80 BBLS 6/11/2013 00:00 - 12:00 12.00 PULL N HMAN 563.00 DECOMP SAFETY STAND DOWN -RIG MAINTENANCE ON TOP DRIVE. -DRILL SITE 2 CLEAN UP. HOUSEKEEPING AROUND THE RIG. 12:00 - 00:00 12.00 PULL N HMAN 563.00 DECOMP SAFETY STAND DOWN -RIG MAINTENANCE ON SUPER CHOKE AND MUP PUMPS. VERIFY TORQUE ON WELL HEAD FLANGES AFTER FINDING TWO LOOSE STUDS. -HOUSEKEEPING AROUND THE RIG. -DRILL SITE 2 CLEAN UP. 6/12/2013 00:00 - 12:00 12.00 PULL N HMAN 563.00 DECOMP SAFETY STAND DOWN -HOUSEKEEPING AROUND THE RIG. -DRILL SITE 2 AND CRAZY HORSE PAD CLEAN UP. HIGH FLOWALARM DRILL -PARKER AREA MANAGER OBSERVED CREW. DRILL PERFORMED WITH NEW DRILLER. -AAR REVIEW WITH CREW. 12:00 - 00:00 12.00 PULL N HMAN 563.00 DECOMP SAFETY STAND DOWN -REPAIR HANDRAILS ON ROOF -LIFTING AND PADEYE INSPECTION ON RIG EQUIPMENT. -HOUSEKEEPING AROUND THE RIG. -DRILL SITE 2 AND CRAZY HORSE PAD CLEAN UP. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 25 of 56 Operation Summary Report Common Well Name: 18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr)_- (usft) 6/13/2013 00:00 - 15:30 15.50 PULL N HMAN 563.00 DECOMP SAFETY STAND DOWN. -HOUSEKEEPING AROUND THE RIG. -INVESTIGATION OF DROPPED JOINT INCIDENT. 15:30 16:30 1.00 PULL P DECOMP RIG UP TO LAY DOWN 3 1/2"TUBING. -CHANGE OUT ELEVATORS FROM BX TO YC. -RIG UP DOYON CASING EQUIPMENT. ,16:30 - 17:00 0.50 PULL • N WAIT 563.00 DECOMP WAIT ON DOYON CASING 17:00 - 17:30 0.50 PULL P DECOMP PRE JOB SAFETY MEETING FOR LAYING DOWN 3 1/2"TUBING. 17:30 - 19:00 1.50 r PULL P DECOMP LAY DOWN 3 1/2"TUBING. -AFTER 1 JOINT,STEP BACK 5X5 WITH CREW. -CONTINUE LAYING DOWN A TOTAL OF 17 JTS AND 1 CUT JT OF 3 1/2"TUBING. -27.12'OF 31/2"CUT TUBING JOINT-CUT FLARE-4.02" -TOTAL RECOVERED EQUIPMENT • -89 4 1/2"TUBING JTS -192 3 1/2"TUBING JTS -1 CUT 3 1/2"TUBING -47 STAINLESS STEEL CONTROL BANDS -CONTROL LINE -1 SSSV -2GLM -1 X-NIPPLE 19:00 - 21:30 2.50 PULL P DECOMP RIG DOWN TUBING HANDLING EQUIPMENT. -CHANGE OUT ELEVATORS FROM YC TO BX. -LAY DOWN DOYON CASING POWER TONGS AND ASSOCIATED EQUIPMENT. 21:30 - 22:00 0.50 PULL N HMAN DECOMP PICK UP 4"JOINT. -SIMULATE DROPPED OBJECT SCENARIO. -TAKE PICTURES AND MEASUREMENTS FOR INVESTIGATION PURPOSES. 22:00 - 23:30 1.50 BOPSUR P DECOMP RIG UP BOP TEST EQUIPMENT -MAKE UP 4"TEST JOINT. -INSTALL TEST PLUG. -FLOOD BOP EQUIPMENT WITH WATER. 23:30 - 00:00 0.50 BOPSUR P DECOMP TEST BOP EQUIPMENT -TEST TO 250 PSI LOW,3500 PSI HIGH. -TEST WITNESS WAIVED BYAOGCC JEFF TURKINGTON. • -TROUBLESHOOT LEAK ON SENSATOR HOSE FITTING. 6/14/2013 00:00 - 01:30 1.50 I BOPSUR P DECOMP TEST BOP EQUIPMENT -TEST TO 250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH. -TEST WITH 4"TEST JOINT. 01:30 - 02:30 1.00 BOPSUR N RREP DECOMP CODE 8 TROUBLESHOOT BLEEDER VALVE ON TEST PUMP MANIFOLD LEAK. -TROUBLESHOOT AND TIGHTEN LEAK ON CHOKE LINE FLANGE. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 26 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 i End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: —_-__.__------- Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) — 02:30 - 07:30 5.00 BOPSUR P DECOMP TEST BOP EQUIPMENT -TEST TO 250 PSI LOW,3500 PSI HIGH FOR 5 I MINUTES EACH. -TEST WITH 4"TEST JOINT. -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS. -TEST WITNESS WAIVED BY AOGCC JEFF TURKINGTON. 07:30 09:00 1.50 BOPSUR P DECOMP RIG DOWN TEST EQUIPMENT. -UD TEST TOOLS. -PULL TEST PLUG. -BLOW DOWN AND LINE UP BOP EQUIPMENT. 09:00 - 10:00 1.00 BOPSUR P DECOMP INSTALL 91/16"WEAR BUSHING. -BREAK DOWN RUNNING TOOL -CLEAR AND CLEAN RIG FLOOR. 10:00 - 12:00 2.00 BOPSUR N RREP DECOMP CODE 8 -REMOVE AND REPLACE LEAKING AIR BOOTS IN PITCHER NIPPLE. 12:00 - 15:00 3.00 CLEAN P DECOMP PICK UP CLEANOUT ASSEMBLY. M/U POLISH MILL AND SCRAPER ASSEMBLY 15:00 - 20:00 5.00 CLEAN P DECOMP •TRIP IN HOLE WITH CLEANOUT ASSEMBLY. -FROM 98'TO 4260'. 1-UW 100K,DW 94K 20:00 - 20:30 0.50 CLEAN P i DECOMP REAM AND POLISH FROM 4260'TO 4344'. -350 GPM,920 PSI -20 RPM,3K TQ -UW 100K,DW 94K,RW 95K REAM AREA TWO TIMES. 20:30 - 00:00 3.50 . CLEAN P DECOMP TRIP IN HOLE WITH CLEANOUT ASSEMBLY. -FROM 4344'TO 8610'. -UW175K,DW156K 8/15/2013 00:00 - 01:30 1.50 CLEAN P DECOMP TRIP IN HOLE WITH CLEANOUT ASSEMBLY. -FROM 8610'TO 9594'. UW 170K,DW 135K 01:30 - 02:00 0.50 CLEAN P DECOMP REAM DOWN FROM 9594'TO 9601'. -SET DOWN ON LINER TOP 5K WOB TO VERIFY. -DRESS LINER TOP FOR TIE BACK ASSEMBLY -5 BPM,590 PSI -50 RPM,3.5K TO 5.5K TQ -UW 170K,DW 130K,RW 154K -WORK THROUGH 4 TIMES TO POLISH. 02:00 - 07:30 5.50 CLEAN 1 P DECOMP CIRCULATE AND RECIPROCATE FROM 9510' TO 9587' -PUMP 40 BBL HIGH VIS SWEEP -8 BPM,1280 PSI -50 RPM,3.2K TQ -UW 170K,DW 135K,RW 154K. -TOTAL STROKES PUMPED=19,207 -OA=140 PSI 07:30 - 08:00 0.50 CLEAN P DECOMP I MONITOR WELL-NO FLOW 08:00 - 15:00 7.00 CLEANP DECOMP TRIP OUT HOLE WITH CLEANOUT ASSEMBLY -PJSM -PUMP DRY JOB -FROM 9510'TO 98' -UW 45K,DW 45K Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 27 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:OOAM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-2113 plan c©64.65usft(above Mean Sea Level) Date • From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:00 - 18:00 3.00 CLEAN P DECOMP LAY DOWN CLEANOUT ASSEMBLY PJSM FROM 98'TO SURFACE I-CLEAN PARAFFIN SLUDGE FROM MAGNETS /BOOT BASKETS 18:00 - 20:30 2.50 CLEAN N DPRB DECOMP PICKUP 7"LINER CLEANOUT ASSEMBLY. -M/U 6"BIT AND 4-3/4"DC ASSEMBLY 20:30 - 00:00 3.50 CLEAN N DPRB 206.00 DECOMP 'TRIP IN HOLE WITH 7"LINER CLEANOUT ASSEMBLY -FROM 206'TO 3990' -UW70K,DW70K 6/16/2013 00:00 - 03:00 3.00 1 CLEAN N DPRB 9,957.00 DECOMP TRIP IN HOLE WITH T'LINER CLEANOUT ASSEMBLY I-FROM 3990'TO 9957' -UW 110K,DW 100K 03:00 - 03:30 0.50 CLEAN N DPRB 9,949.00 DECOMP SINGLE IN FROM PIPE SHED -FROM 9665'TO 9949' -UW 180K,DW 126K 03:30 - 04:30 1.00 CLEAN N DPRB 9,952.00 DECOMP WASH DOWN AND TAG FISH. -SET DN 6K TO VERIFY TOF. -VERIFY TOF AT 9952'. 338 GPM,1170 PSI. UW 180K,DW 126K. 04:30 - 06:30 2.00 CLEAN N DPRB 9,570.00 DECOMP PUMP SWEEP AND BACK REAM OUT -FROM 9952'TO 9570'. -PUMP 35 BBL BARAKLEAN SWEEP ON BOTTOM. -CHASE WITH A40 BBL HIGH VISCOSITY SWEEP. 338 GPM,1015 PSI. -40 RPM,3.5K TQ. !-UW 180K,DW 126K,RW 152K -RACK BACK STANDS WHILE CIRCULATING OUT. 06:30 - 07:00 0.50 CLEAN N DPRB 9,570.00 DECOMP MONITOR WELL. STATIC. -OBTAIN SPR. 07:00 - 14:30 7.50 CLEAN N DPRB 206.00 DECOMP TRIP OUT OF THE HOLE -FROM 9570'TO 206' UW 45K,DW 45K MONITOR WELL AT BHA. STATIC. 14:30 - 16:00 1.50 CLEAN N DPRB 206.00 DECOMP LAY DOWN CLEAN OUT BHA. -FROM 206'TO SURFACE. -RACK BACK 2 STD 4 3/4"DC. -UD REMAINDER OF BHA. -CLEAR AND CLEAN RIG FLOOR. 16:00 - 16:30 0.50 CLEAN P DECOMP PJSM FOR RIG UP OF WIRELINE EQUIPMENT 16:30 - 17:30 1.00 CASING P DECOMP RIG UP WIRELINE EQUIPMENT. -PREPLANNING MEETING FOR RUNNING 7" SCAB LINER. 17:30 - 18:30 1.00 CASING P DECOMP PICK UP WIRELINE TOOLS AND PLUG. 18:30 - 21:00 2.50 CASING P DECOMP IRIH TO 9580'WIRE DEPTH. TAG TOL. FLOAT PLUG IN TOP OF LINER 1 TIME. PICK UP TO VERIFY TOL,UNABLE TO RE-ENTER LINER. 21:00 - 00:00 3.00 CASING N DPRB 9,601.00 DECOMP ATTEMPT TO RE-ENTER LINER WITH VARYING SPEEDS WITHOUT SUCCESS. -CONSULT TOWN FOR DIRECTION. -MOBILIZE HALLIBURTON PLUG RUNNING !TOOL Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 28 of 56 Operation Summary Report - Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) — Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan©64.65usft(above Mean Sea Level) Date I From-To Hrs Task Code NPT I NPT Depth Phase Description of Operations (hr) (usft) 6/17/2013 00:00 - 01:30 1.50 CASING P DECOMP POOH WITH FAST DRILL PLUG ON E-LINE. 01:30 - 03:00 1.50 CASING P DECOMP LAY DOWN FAST DRILL PLUG AND E-LINE I TOOLS. -ON SURFACE FOUND PLUG COATED WITH HEAVY WELLBORE OIL RESIDUE. -CLEANED PLUG AND INSPECTED. GOOD. -R/D E-LINE. 03:00 - 04:00 1.00 CASING N DPRB DECOMP PICKUP FAST DRILL RUNNING TOOL AND PLUG ON DRILL PIPE. 04:00 - 08:00 4.00 CASING N DPRB 3,760.00 DECOMP 'RUN FAST DRILL PLUG IN THE HOLE ON DRILL PIPE. -FROM SURFACE TO 3760'. UW86DW86 1-FILLED PIPE AT 1650',45 GPM 340 PSI 08:00 - 12:30 4.50 CASING N DPRB 3,760.00 DECOMP I FILL PIPE. '-ATTEMPT TO STAGE PUMPS UP TO GET FULL RETURNS. -MAXIMUM PUMP PRESSURE 2350 PSI. -70 GPM 1940 PSI. -RIG UP PIPE FILL UP TOOL. 12:30 - 18:00 5.50 CASING N DPRB 9,570.00 DECOMP TRIP IN THE HOLE WITH FAST DRILL PLUG. -FROM 3760'TO 9570'. -UW162DW128K 18:00 19:00 1.00 CASING N DPRB 9,630.00 DECOMP SET FAST DRILL PLUG. -RIH FROM 9570'TO 9630'. ROTATE 30 TURNS TO SET PLUG. -PICK UP 40K OVER TO SHEAR. -SET DOWN 5K TO VERIFY SET. 19:00 - 20:00 1.00 CASING N DPRB 9,625.00 DECOMP CIRCULATE AND SPOT WASH UP PILL. -PICK UP AND STAGE UP CIRCULATION. -420 GPM 1352 PSI. -SPOT PILL ON BOTTOM. 20:00 - 20:30 0.50 CASING N DPRB I 9,625.00 DECOMP ALLOW PILL TO SOAK. •-MONITOR WELL,STATIC. 20:30 - 23:30 3.00 CASING N DPRB 9,625.00 DECOMP CIRCULATE WASH UP PILL AND HI VISCOSITY SWEEP TO SURFACE. -DUE TO MIGRATION WASH UP PILL CAME 150 BBL EARLY -OVERBOARD 180 BBL OF BRINE DUE TO WASHUP PILL AND RESIDUE. -MONITOR WELL,STATIC. 23:30 - 00:00 0.50 CASING N DPRB 8,434.00 DECOMP TRIP OUT OF THE HOLE. -FROM 9625'TO 8434'. _ -UW 170K. 6/18/2013 00:00 - 06:30 6.50 CASING N DPRB /---DECOMP TRIP OUT OF THE HOLE WITH FASTDRILL SETTING TOOL. -FROM 8434'. -LAY DOWN MECHANICAL SETTING TOOL. 06:30 - 07:30 1.00 CASING P DECOMP CLEAN AND CLEAR RIG FLOOR. -STAGE 9-5/8"RTTS AND PREP TO RUN. 07:30 - 11:00 3.50 CASING P DECOMP RUN IN THE HOLE WITH 9-5/8"RTTS ON 4" HT38 DRILL PIPE. I-PRE JOB SAFETY MEETING WITH RIG CREW AND HES REPRESENTATIVE. -TO 4393'. -PU 97K;SO 88K. Printed 8/6/2013 9.06:23AM North America-ALASKA-BP Page 29 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum: 18-21 B plan C64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase , Description of Operations (hr) (usft) 11:00 - 11:30 0.50 CASING P DECOMP !SET RTTS AND RIG UP TO PRESSURE TEST !9-5/8"CASING. j-SET RTTS AT 4393'. -PURGE AIR FROM LINES AND RIG UP TO TEST. 11:30 - 13:00 1.50 CASING P DECOMP PRESSURE TEST 9-5/8"CASING FROM RTTS AT 4393'TO SURFACE. 250 PSI LOW FOR 5 CHARTED MIN/3500 PSI FOR 30 CHARTED MIN. -TEST APPROVED BY BP WTL MIKEL SCHULTZ. -LOST 60 PSI IN THE FIRST 15 MIN. -LOST 20 PSI IN THE SECOND 15 MIN. 13:00 - 13:30 0.50 CASING P DECOMP RELEASE RTTS PER HES SERVICE REPRESENTATIVE. PRE JOB SAFETY MEETING WITH RIG CREW AND HES REPRESENTATIVE. 13:30 - 16:30 3.00 CASING P DECOMP TRIP OUT OF THE HOLE WITH 9-5/8"RTTS -FROM 4393'. 16:30 - 17:00 0.50 CASING P DECOMP 'LAY DOWN 9-5/8"RTTS AND SEND DOWN WITH TOOL CRANE. 17:00 - 17:30 0.50 CASING P DECOMP SERVICE TOP DRIVE AND GREASE CROWN. 17:30 - 18:30 1.00 BOPSUR P DECOMP 'PULL WEAR BUSHING. -PRE JOB SAFETY MEETING. I-DRAIN STACK. 18:30 - 19:30 1.00 BOPSUR P DECOMP CHANGE UPPER PIPE RAMS TO 7"CASING RAMS. i -PRE JOB SAFETY MEETING WITH RIG CREW. -CLOSE BLIND SHEAR RAMS. 19:30 - 23:30 4.00 BOPSUR P DECOMP PRESSURE TEST 7"UPPER RAMS WITH 7" TEST JOINT 250 PSI LOW/3500 PSI HIGH FOR 5 MIN EACH. -PRE JOB SAFETY MEETING WITH RIG CREW. -DRAIN STACK AND MONITOR WELL. -INSTALL TEST PLUG. -PICK UP AND MAKE UP 7"TEST JOINT. -TEST UPPER RAMS 250/3500 PSI. -LAY DOWN TEST JOINT AND RIG DOWN TEST EQUIPMENT. _ 23:30 - 00:00 0.50 WHSUR P DECOMP INSTALL 9-1/16"ID WEAR BUSHING. 6/19/2013 00:00 - 03:00 3.00 CASING P DECOMP RIG UP TO RUN 7",26 LB/FT VAMTOP HC SCAB LINER ON 4"HT38 DRILLPIPE. -PRE JOB SAFETY MEETING WITH RIG CREW AND DOYON CASING. -CLEAR RIG FLOOR. -MOBILIZE HANDLING EQUIPMENT AND DOUBLE STACK TONGS TO RIG FLOOR. -MAKE UP SAFETY JOINT. -RIG UP TORQUE TURN EQUIPMENT. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 30 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:OOAM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 12:00 9.00 CASING P DECOMP RUN 7",26#,L-80,SCAB LINER. -PRE JOB SAFETY MEETING WITH RIG CREW,DOYON CASING AND BAKER. -CHECK FLOATS. USE JET LUBE SEAL GUARD THREAD COMPOUND. -BAKER-LOC SHOE TRACK JOINTS. TORQUE CONNECTIONS TO 11,950 FT-LBS. -RUN 1 FREE FLOATING CENTRALIZER PER JOINT. FILL LINER EVERY 5 JOINTS. -PU 124K,SO 112K. -RIH AT 60 FT/MIN TO 4575'MD. 12:00 - 14:30 2.50 CASING P DECOMP CONTINUE TO RUN 7",26#,L-80,SCAB LINER TO 5236'MD. -USE JET LUBE SEAL GUARD THREAD COMPOUND. -TORQUE CONNECTIONS TO 11,950 FT-LBS. -RUN 1 FREE FLOATING CENTRALIZER PER JOINT. -FILL LINER EVERY 5 JOINTS. -PU 128K,SO 119K. -RIH AT 60 FT/MIN TO 5236'MD. 125 JOINTS OF 7"RAN. 14:30 - 15:30 1.00 CASING P DECOMP CHANGE ELEVATORS TO PICKUP LINER HANGER ASSEMBLY. -FROM SIDE DOOR TO BX ELEVATORS DRESSED FOR 5". 15:30 - 16:00 0.50 CASING P DECOMP RIG DOWN CASING RUNNING EQUIPMENT. 16:00 - 18:30 2.50 CASING P DECOMP CONTINUE TO RUN 7",26#,L-80,SCAB LINER TO 5658'MD. MAKE UP LINER HANGER/PACKER ASSEMBLY. -ADD PAL MIX -CONTINUE IN HOLE TO 5658'MD ON 4" DRILL PIPE. -RIH AT 60 FT/MIN FROM 5236'MD TO 5658' MD. -FILLING PIPE EVERY 10 STANDS. -PU 135K,SO 130K. -DRIFTING PIPE IN DERRICK W/2.48"OD DRIFT. 18:30 - 21:00 2.50 CASING N WAIT 5,658.00 DECOMP CODE 8 -STAND DOWN AND PERFORM DERRICK INSPECTION. -FLAT WASHER FELL FROM DERRICK BEHIND A-LEGS. -PERFORM DERRICK INSPECTION AND MAKE NOTIFICATIONS. 21:00 - 00:00 3.00 CASING P DECOMP CONTINUE TO RUN 7",26#,L-80,SCAB LINER TO 8118'MD. -CONTINUE IN HOLE TO 8118'MD ON 4"DRILL PIPE. -RIH AT 60 FT/MIN FROM 5658'MD TO 8118' MD. -FILLING PIPE EVERY 10 STANDS. -PU 148K,SO 140K. -DRIFTING PIPE IN DERRICK W/2.48"OD DRIFT. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 31 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase ; Description of Operations (hr) (usft) 6/20/2013 00:00 - 02:30 2.50 CASING P DECOMP CONTINUE TO RUN 7",26#,L-80,SCAB LINER TO 9580'MD. -CONTINUE IN HOLE TO 9580'MD ON 4" DRILL PIPE. -RIH AT 60 FT/MIN FROM 8118'MD TO 9580' MD. -FILLING PIPE EVERY 10 STANDS. -PU 217K,SO 160K -DRIFTING PIPE IN DERRICK W/2.48"OD DRIFT. 02:30 - 05:00 2.50 CASING P DECOMP CIRCULATE HI-VIS,DIESEL,HI-VIS SWEEP. -STAGE PUMPS TO 5 BPM,320 PSI. { -PUMP 15 BBL HI-VIS SPACER -PUMP 5 BBL NEAT DIESEL PILL -PUMP 15 BBL HI-VIS SPACER -CHASE WITH 10.2 PPG BRINE. 1-5 BPM,320 PSI. -DUMP RETURNS AT SURFACE. SIMOPS: RIG UP TO PUMP 160 BBLS 15.8 CEMENT. 1-PRE JOB SAFETY MEETING ON RIGGING UP CEMENT HEAD. I-RIG UP SLB CEMENTERS. I -RIG UP CEMENT LINE ON RIG FLOOR. 05:00 - 09:00 4.00 CASING, P DECOMP RIG UP CEMENT HEAD AND CEMENT LINES. -STAND ONE STAND BACK -SPACE OUT AND PICK UP CEMENT HEAD TO TAG LINER TIE-BACK ASSEMBLY. -NO-GO SEAL ASSEMBLY ON 7"LINER TOP AT 1 9595'. -PICK UP 2'TO EXPOSE PORTS ON SEAL ASSEMBLY. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 32 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:OOAM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:00 - 14:30 5.50 CASING P DECOMP CEMENT 7",26#,L-80,VAMTOP HC SCAB LINER -PRE JOB SAFETY MEETING WITH RIG CREW AND SLB CEMENTERS. FILL LINES WITH WATER AND PRESSURE TEST TO 250/4000 PSI FOR 5 MIN. -PUMP 160 BBLS OF 15.8 PPG CLASS G©5 BPM,20 BBL EXCESS(YIELD 1.17 CU.FT/SK) -DROP DRILL PIPE WIPER DART. -NO PIPE MOVEMENT WHILE PUMPING CEMENT. PERFORM DISPLACEMENT WITH RIG PUMPS AND 10.2 PPG BRINE -33 BBLS DISPLACED AT 5 BPM -ICP 80 PSI;2.7%RETURN FLOW -FCP 84 PSI;5.4%RETURN FLOW -14 BBLS DISPLACED AT 3 BPM -ICP 28 PSI;5.9%RETURN FLOW -FCP 31 PSI;4.2%RETURN FLOW LATCHED UP AT 46.8 BBLS DISPLACED. -170 BBLS DISPLACED AT 5 BPM -ICP 85 PSI;4.8%RETURN FLOW -FCP 1762 PSI;4.7%RETURN FLOW -23 BBLS DISPLACED AT 2 BPM -ICP 1680 PSI;3.1%RETURN FLOW -FCP 2019 PSI;3.2%RETURN FLOW TOTAL DISPLACEMENT VOLUME 240 BBLS ATTEMPT TO SET LINER HANGER AND LINER TOP PACKER. -SLACK OFF 2'AND NO-GO SEAL ASSEMBLY INSIDE TIE-BACK SLEEVE. -PRESSURE UP TO 2300 PSI. -HYDRAULIC OFF AND LOST PRESSURE. -SET DOWN 15K AND PRESSURE UP TO 3620 PSI. -HYDRAULIC OFF AND LOST PRESSURE. -ATTEMPTED SEVERAL MORE TIMES -NO POSITIVE INDICATION HANGER SET. -CONSULT WITH WELLS TEAM LEAD AND SUPERINTENDENT. -CONSULT WITH BAKER 10 MINUTES PICK UP TO REMOVE RS PACK-OFF AND CIRCULATE EXCESS CEMENT OFF LINER TOP. -CIRCULATE AT 7 BPM AT 1050 PSI. -20 BBLS OF CLEAN CEMENT TO SURFACE. -NO SIGNS OF SCHMOO CONTAMINATED CEMENT SEEN AT SURFACE. CEMENT IN PLACE AT 11:43 14:30 - 15:00 0.50 CASING P DECOMP RIG DOWN CEMENT LINES AND LAY DOWN CEMENT HEAD. -PRE JOB SAFETY MEETING. -LAY DOWN CEMENT HEAD. FLUSH AND RIG DOWN CEMENT LINES. -MONITOR WELL—STATIC. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 33 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:00 - 18:30 3.50 CASING P DECOMP PULL OUT OF HOLE WITH LINER RUNNING TOOL. -PRE JOB SAFETY MEETING. -FROM 4379'. FLOW CHECK WELL PRIOR TO LAYING DOWN RUNNING TOOL. -WELL STATIC. CHANGE ELEVATOR INSERTS AND LAY DOWN LINER RUNNING TOOL. 18:30 - 19:30 1.00 CASING P DECOMP CLEAN AND CLEAR RIG FLOOR -CHANGE ELEVATOR INSERTS BACK TO 4" -MONITOR WELL—STATIC. 19:30 - 22:00 2.50 BOPSUR P DECOMP CHANGE UPPER RAMS TO 2-7/8"X 5"VBR. -PRE JOB SAFETY MEETING. DRAIN STACK AND CLOSE BLIND SHEAR RAMS. -CHANGE UPPER RAMS. -CIRCULATE ACROSS THE TOP OF THE MUD CROSS AND MONITOR WELL STATIC. 22:00 - 00:00 2.00 BOPSUR P DECOMP FLUSH STACK AND WELLHEAD. PULL WEAR RING AND MAKE UP TEST JOINT WITH STACK FLUSHING TOOL. FLUSH STACK AND WELL HEAD -SIGNIFICANT AMOUNT OF GREEN CEMENT FOUND IN RAM CAVITIES DURING RAM CHANGE. 6/21/2013 00:00 - 02:30 2.50 BOPSUR P DECOMP RIG UP TO TEST BOPE. -DRAIN STACK SET TEST PLUG. 1-RIG UP TEST EQUIPMENT ON RIG FLOOR. -FILL STACK AND FLUSH LINES. 02:30 - 07:00 4.50 BOPSUR P DECOMP TEST BOPE TO 250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH. -TEST WITH 4"TEST JOINT. -ALL TESTS CHARTED. -TEST WITNESS WAIVED BY AOGCC REP BOB NOBLE. 07:00 - 09:00 2.00 BOPSUR P DECOMP 'RIG DOWN TEST EQUIPMENT AND INSTALL I WEAR BUSHING 09:00 - 10:30 1.50 CLEAN P DECOMP 1 MOBILIZE CLEAN-OUT ASSEMBLY TO RIG • FLOOR. -CLEAN AND CLEAR RIG FLOOR. 10:30 - 13:30 3.00 CLEAN P DECOMP PICK UP AND RUN IN THE HOLE WITH CLEAN-OUT ASSEMBLY. -PRE JOB SAFETY MEETING WITH RIG CREW AND BAKER FISHING REP. -TO 784' -PU 55K;SO 55K. 13:30 - 14:00 0.50 CLEAN P DECOMP INSTALL PS-21 SLIPS AND RIG UP TO PICKUP 4"DRILL PIPE FROM PIPE SHED. 14:00 - 19:00 5.00 CLEAN P DECOMP RUN IN THE HOLE WITH CLEAN-OUT ASSEMBLY ON 4"DRILL PIPE FROM PIPE 1 SHED. -FROM 784'TO 3775'MD. -PU 100K;SO 90K. -FILL PIPE EVERY 20 STANDS. 19:00 - 19:30 0.50 CLEAN P DECOMP SERVICE RIG. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 34 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 ' End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 I Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:30 - 00:00 4.50 CLEAN , P DECOMP CONTINUE TO RUN IN THE HOLE WITH CLEAN-OUT ASSEMBLY ON 4"DRILL PIPE FROM PIPE SHED. I I ;-FROM 3775'TO 5895'MD. 1 -PU 130K;SO 108K. 1 -FILL PIPE EVERY 20 STANDS. 6/22/2013 00:00 - 02:00 I 2.00 CLEAN P DECOMP CONTINUE TO RUN IN THE HOLE WITH CLEAN-OUT ASSEMBLY ON 4"DRILL PIPE FROM PIPE SHED. -FROM 5895'TO 6748'MD. -PU 140K;SO 115K. -FILL PIPE EVERY 20 STANDS. 02:00 - 03:00 1.00 CLEAN P DECOMP CIRCULATE A HOLE VOLUME. 12 BPM AND 2180 PSI. -PUMPED 571 BBLS. -RIG UP TO PRESSURE TEST LINER TOP. 03:00 - 04:00 1.00 CLEAN P DECOMP j PRESSURE TEST 7"LINER ASSEMBLY 250/3500 PSI FOR 5/30 MIN. -PRE JOB SAFETY MEETING. -RIG UP TEST EQUIPMENT AND STRAP PITS. 04:00 - 05:00 1.00 CLEAN _N SFAL 6,748.00 DECOMP TROUBLESHOOT TEST EQUIPMENT. -ISOLATE TOP DRIVE AND KILL LINES BACK TO PUMP. -FIX LEAKING FITTING ON SENSATOR. 05:00 - 06:30 1.50 CLEAN P DECOMP PRESSURE TEST 7"LINER ASSEMBLY 250/3500 PSI FOR 5/30 MIN. I-PRE JOB SAFETY MEETING - ;-NOT ABLE TO GET A GOOD TEST , CONSULT WITH NS SUPERINTENDENT AND _ I WTL ON PLAN FORWARD. 06:30 - 07:00 0.50 CLEAN P DECOMP I RIG DOWN TEST EQUIPMENT AND BLOW DOWN LINES. 07:00 - 09:00 2.00 CLEAN P - DECOMP I CONTINUE TO RUN IN THE HOLE WITH CLEAN-OUT ASSEMBLY ON 4"DRILL PIPE 1 STANDS FROM DERRICK -FROM 6748'TO 9302'MD. -PU 184K;SO 133K 09 00 - 09 30 0.50 CLEAN P DECOMP WASH AND REAM TO TOP OF LINER SHOE TRACK. i-FROM 9302'TO 9515'MD. I-PU 184K;SO 133K. '-7 BPM;1075 PSI. 09:30 - 16:30 7.00 CLEAN P DECOMP I DRILL PLUGS AND CEMENT IN SHOE TRACK -FROM 9515'TO 9615'MD. -380 GPM;1710 PSI ON,1700 PSI OFF. -130 RPM;9K TORQUE ON,6K TORQUE OFF. -PU 184K;SO 133K;ROT 150K -DRILL OUT LANDING COLLAR AT 9517' -DRILL OUT FLOAT COLLAR AT 9557' 16.30 - 17:30 1.00 CLEAN P DECOMP CIRCULATE WELL CLEAN. -PUMP 25 BBL HI-VIS SWEEP. -10 BPM;1670 PSI. i -PU 184K;SO 133K;ROT 150K. SIMOPS: RIG UP TO TEST 7"TIE-BACK ASSEMBLY. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 35 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:30 - 19:00 1.50 CLEAN N DFAL 9,615.00 DECOMP PRESSURE TEST 7"TIE-BACK ASSEMBLY 250/3500 PSI. -PRE JOB SAFETY MEETING WITH RIG CREW. RIG UP PRESSURE TESTING EQUIPMENT. -CLOSE UPPER PIPE RAMS TEST 250 PSI LOW FOR 5 MIN/3500 PSI HIGH FOR 30 MIN. -LOST 169 PSI IN THE FIRST 15 MIN AND 96 PSI IN THE SECOND 15 MIN. -TEST FAILED TO MEET CRITERIA. CONTACTED ODE AND WTLTO DISCUSS PLAN FORWARD. 1900 19:30 0.50 CLEAN P DECOMP RIG DOWN PRESSURE TESTING EQUIPMENT. 19:30 - 20:30 1.00 CLEAN P DECOMP DRILL OUT REMAINDER OF CEMENT IN 7" LINER AND 7"FAST-DRILL PLUG. FROM 9615'TO 9631'MD. -380 GPM;1740 PSI ON,1710 PSI OFF. -130 RPM;9K TORQUE ON,6K TORQUE OFF. PU 184K;SO 133K;ROT 150K. -WOB 10K TO 12K -TAG UP ON FAST-DRILL PLUG AT 9629' 20:30 - 21:00 0.50 CLEAN P DECOMP PUSH REMAINS OF PLUG DOWN TO TUBING STUB. -FROM 9631'TO 9948'MD. -PU 190K;SO 130K. -SET 10K ON FISH AT 9948'. -BROUGHT PUMPS UP TO 10 BPM AND 2130 PSI. -TAG FISH AT 9948'WITH 7K. -NO CHANGE IN PRESSURE. 21:00 - 23:00 2.00 CLEAN P DECOMP CIRCULATE WELL CLEAN -PUMP 25 BBL HI-VIS SWEEP. -10 BPM;2190 PSI. -PU 184K;SO 133K;ROT 150K. -60 RPM. -SHUT DOWN AND MONITOR WELL FOR 10 MIN. -STATIC. 23:00 - 00:00 1.00 CLEAN P DECOMP SLIP AND CUT DRILL LINE. -PRE JOB SAFETY MEETING. 6/23/2013 00:00 - 01:30 1.50 CLEAN P DECOMP CONTINUE TO SLIP AND CUT DRILL LINE. -PRE JOB SAFETY MEETING. -CUT 216'AND REDUCED WRAPS ON DRUM TO 17. -SERVICED TOP DRIVE AND CROWN. 01:30 - 07:30 6.00 CLEAN P DECOMP PULL OUT OF THE HOLE WITH CLEAN OUT ASSEMBLY. -FROM 9848'TO 784'MD. -MONITOR THE WELL -STATIC. 07:30 - 09:30 2.00 CLEAN P DECOMP LAY DOWN CLEAN OUT ASSEMBLY. -STAND BACK HWDP AND DRILL COLLARS. 09:30 - 10:00 0.50 CLEAN N DFAL DECOMP CLEAN AND CLEAR RIG FLOOR. -MOBILIZE TOOLS FOR POLISH MILL RUN TO RIG FLOOR. 10:00 12:00 2.00 CLEAN N DFAL 783.00 DECOMP PICK UP AND RUN IN THE HOLE WITH POLISH MILL FOR 7"PBR. PRE JOB SAFETY MEETING WITH RIG CREW. -PU 60K;SO 60K Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 36 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 15:30 3.50 CLEAN N DFAL 4,380.00 DECOMP RUN IN THE HOLE WITH POLISH MILL ASSEMBLY ON 4"DRILL PIPE. -FROM 783'TO 4380'MD. -PU 114K;SO 94K. 15:30 - 16:30 1.00 CLEAN N DFAL 4,382.00 DECOMP POLISH 7"PBR. -SET DOWN 5K AND TAG LINER TOP AT 4382'. -8 BPM AND 700 PSI. -PU 114K;SO 94K;ROT 103K. 60 RPM;4K TORQUE ON;3K TORQUE OFF. 16:30 - 17:30 1.00 CLEAN N DFAL 4,380.00 DECOMP CIRCULATE A BOTTOMS UP PRIOR TO PULLING OFF BOTTOM. -8 BPM AND 700 PSI. -MONITOR THE WELL FOR 10 MIN. -STATIC. -PUMP DRY JOB PRIOR TO PULLING OUT OF HOLE. 17:30 - 19:30 2.00 CLEAN N DFAL 784.00 DECOMP PULL OUT OF THE HOLE WITH POLISH MILL ASSEMBLY. -FROM 4380'TO 784'MD. -PU 60K,SO 60K. -MONITOR WELL FOR 10 MIN. -STATIC. 19:30 - 22:00 2.50 CLEAN N DFAL DECOMP LAY DOWN POLISH MILL ASSEMBLY. STAND BACK HWDP AND DRILL COLLARS. -LAY DOWN POLISH MILL AND STRING MAGNET. 22:00 - 22:30 0.50 CLEAN N DFAL DECOMP HELD H2S/RIG EVACUATION DRILLAND AAR WITH RIG CREW. -RIG CREW AND THIRD PARTY PERSONNEL REPORTED TO PRIMARY MUSTER AREA. -ALL PERSONNEL ACCOUNTED FOR. -DISCUSSED ROUTES OF EGRESS FROM RIG AND WIND DIRECTION. 22:30 - 00:00 1.50 CLEAN N DFAL DECOMP CONTINUE TO LAY DOWN POLISH MILL ASSEMBLY. -FINISH LAYING DOWN MILL AND MAGNET ASSEMBLY. CLEAN AND CLEAR RIG FLOOR. 6/24/2013 00:00 - 01:00 1.00 ZONISO N DFAL DECOMP MAKE UP SHEAR JOINT FOR NON-SHEARABLES ACROSS THE BOP STACK CONTINGENCY PLAN -PRE JOB SAFETY MEETING. 01:00 - 01:30 0.50 ZONISO N DFAL DECOMP PICKUP 9-5/8"X 7"ZXP LINER TOP PACKER AND SEALASSEMBLY. -INSPECT SEAL ASSEMBLY AND PACKER BEFORE RUNNING IN THE HOLE. -FOUND A BENT SLIP ON LINER TOP PACKER. -LAY DOWN LINER TOP PACKER AND SEAL ASSEMBLY TO PIPE SHED. 01:30 - 02:00 0.50 ZONISO N DFAL DECOMP REPAIR SLIP SEGMENT IN PIPE SHED. 02:00 - 06:00 4.00 ZONISO N DFAL 1,443.00 DECOMP PICK UP AND RUN IN THE HOLE WITH 9-5/8"X 7"ZXP LINER TOP PACKER AND SEAL ASSEMBLY. -TO 1443'MD. PU 92K;SO 92K. 06:00 - 10:00 4.00 ZONISO N DFAL 4,380.00 DECOMP RUN IN THE HOLE WITH LINER TOP PACKER AND SEALASSEMBLY ON 4"DRILL PIPE. -FROM 1443'TO 4380'MD. -PU 141K;SO 106K. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 37 of 56 Operation Summary Report ----._......--- Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UW: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 10:00 - 11:00 1.00 ZONISO N DFAL 4,391.00 DECOMP SET ZXP LINER TOP PACKER. ESTABLISH PARAMETERS AND TAG 7"LINER TOP. -0.5 BPM AND 55 PSI. '-TAG LINER TOP AT 4382',CONTINUE IN TO 4391'. -DROP SETTING BALL AND PUMP DOWN. -3 BPM AND 271 PSI. -SET DOWN 56K LBS AND PRESSURE UP. -PACKER SET AT 3200 PSI. 11:00 - 11:30 0.50 ZONISO N DFAL 4,380.00 DECOMP PRESSURE TEST LINER TOP 250/3500 PSI FOR 5/30 MIN. -GOOD TEST. -SENT TEST CHART TO ODE AND WTL. 11:30 - 12:30 1.00 ZONISO N DFAL 4,380.00 DECOMP RIG DOWN TEST EQUIPMENT AND PREPARE TO PULL OUT OF THE HOLE. 12:30 - 14:30 2.00 ZONISO N DFAL 1,443.00 DECOMP PULL OUT OF THE HOLE WITH LINER RUNNING TOOL. -FROM 4380'TO 1443'MD. -PU 92K;SO 92K. -MONITOR WELL FOR 10 MIN. -WELL STATIC. 14:30 - 20:00 5.50 ZONISO N DFAL DECOMP PULL OUT OF THE HOLE AND LAY DOWN LINER PACKER RUNNING BHA. -LAY DOWN HWDP AND COLLARS NOT NEEDED FOR WHIPSTOCK RUN. CLEAN AND CLEAR RIG FLOOR. 20:00 - 21:00 1.00 STWHIP N DFAL DECOMP LOAD PIPE SHED AND MOBILIZE TOOLS TO RIG FLOOR FOR 7"WHIPSTOCK ASSEMBLY. 21:00 - 21:30 0.50 STWHIP N DFAL DECOMP PRE JOB SAFETY MEETING WITH RIG CREW, BAKER FISHING REPRESENTATIVE,BAKER DD AND MWD REPRESENTATIVES,RIG MANAGER AND WSL FOR PICKING UP 7" - r WHIPSTOCK ASSEMBLY. 21:30 22:00 0.50 STWHIP N DFAL DECOMP 'SERVICE TOP DRIVE. REMOVE BX ELEVATOR ROTATOR TO FIX HYDRAULIC LEAK. 22:00 - 00:00 2.00 STMILL P WEXIT PICK UP 7"WHIPSTOCK BHA AND RUN IN THE HOLE. -MAKE UP MILL ASSEMBLY AND STAND BACK ON FLOOR. 6/25/2013 00:00 - 04:30 4.50 STWHIP P WEXIT CONTINUE TO PICK UP AMD MAKE UP 7" WHIPSTOCK ASSEMBLY -PRE JOB SAFETY MEETING WITH CREW COMING ON TOUR -5 SHEAR SCREWS IN BOTTOM TRIP ANCHOR;17,825 LBS -REMOVE SHIPPING BOLT -INSTALL 45K LB SHEAR BOLT BETWEEN SLIDE AND STARTER MILL -SHALLOW TEST MWD -RIH TO 978' -PU 66K;SO 66K 04:30 - 09:30 5.00 STWHIP P WEXIT CONTINUE TO RIH -RIH WITH 7"WHIPSTOCK AND 6"WINDOW MILL ASSEMBLY FROM 978'TO 4763' -RIH ON ELEVATORS PICKING UP STANDS OUT OF DERRICK -FILL PIPE EVERY 20 STANDS -UP WT-115K,DN WT-95K Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 38 0156 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) _ 09:30 - 10:00 0.50 STWHIP P WEXIT SERVICE TOP DRIVE 10:00 - 12:00 2.00 STWHIP i P WEXIT CONTINUE TO RIH -RIH WITH T'WHIPSTOCK AND 6"WINDOW MILL ASSEMBLY FROM 4763'TO 6468' -RIH ON ELEVATORS PICKING UP STANDS OUT OF DERRICK UP WT-154K,DN WT-115K 12:00 - 17:00 5.00 STWHIP P WEXIT CONTINUE TO RIH -RIH WITH 7"WHIPSTOCK AND 6"WINDOW MILL ASSEMBLY FROM 6468'TO 9905' -RIH ON ELEVATORS PICKING UP STANDS OUT OF DERRICK -FILL PIPE EVERY 20 STANDS -UPWT-204K,DNWT-131K 17:00 - 18:00 1.00 STWHIP P WEXIT ORIENT WHIPSTOCK 26 DEGREES LEFT '18:00 - 18:30 0.50 STWHIP P I WEXIT SET WHIPSTOCK -TAG UP AT 9949' • !-SET ANCHOR AT 9916'WITH 15K DN WT.P/U 13K TO CONFIRM -SHEAR WHIPSTOCK OFF DP WITH 45K DN WT 18:30 - 19:00 0.50 STWHIP P WEXIT POOH -MW 10.2 PPG IN,10.2 PPG OUT -POOH ON ELEVATORS FROM 9902'TO 9526' ! - -UP WT 202K,DN WT 128K 19:00 - 23:00 4.00 STWHIP P i WEXIT SET AND TEST RTTS SET RTTS AT 193' !-PRESSURE TO 250 PSI LOW FOR 5 MIN/ 2000 PSI HIGH FOR 30 MIN -INITIAL HIGH PRESSURE TEST FAILED CRITIERA IN FINAL 15 MINUTES,LET RUN FOR 5 ADDITIONAL MINUTES RE-TEST HIGH PRESSURE,GOOD TEST 23:00 - 00:00 1.00 STWHIP P WEXIT PJSM FOR N/D BOPE AND RISER -DRAIN STACK 6/26/2013 00:00 - 05:30 5.50 STWHIP P WEXIT N/D BOPE -CLEAN PARAFFIN FROM FLOW BOX -N/D BOPE STACK -N/D RISER N/D TBG.SPOOL 05:30 - 09:00 3.50 STWHIP P WEXIT PULL OLD 9 5/8 PACKOFF -M/U PACK-OFF PULLING RUNNING TOOL • -PULLED 40K OVER TO FREE PACK-OFF -CLEANED EXSISTING TUBING SPOOL I INSTALL NEW 9 5/8 PACKOFF -N/U TUBING SPOOL 09:00 - 10:30 1.50 STWHIP P WEXIT TEST NEW 9 5/8 PACKOFF -TEST 250 PSI LOW F/5 MIN 3500 PSI HIGH FOR 5 MIN/30 MIN 10:30 - 12:00 1.50 BOPSUR P WEXIT PJSM FOR N/U BOPE -CLEAN ALL RING GROVES -INSTALL NEW API RINGS AT ALL BREAKS -N/U BOPE AND RISER 12.00 - 19:00 7.00 BOPSUR P WEXIT N/U BOPE AND RISER !-INSTALL BELL NIPPLE AND TURN BUCKLES Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 39 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase j Description of Operations (hr) (usft) 19:00 - 20:30 1.50 BOPSUR P WEXIT TEST BOPE -BODY TEST ONLY -TEST BOPE 250 PSI HIGH LOW,3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH TEST PLUG AND BLIND RAMS '-ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHART 20:30 - 21:30 1.00 BOPSUR P WEXIT BLOW DOWN BLOW DOWN CHOKE MANIFOLD AND KILL LINE -INSTALL PS-21'S AND MOUSEHOLE -REMOVE TEST PLUG AND INSTALL WEAR RING 21:30 - 22:30 1.00 BOPSUR P WEXIT RIH !-RIH TO 193'WITH 4"DP TO RETRIEVE RTTS' -RIH ON ELEVATORS PICKING UP STANDS OUT OF DERRICK 22:30 - 00:00 1.50 BOPSUR P WEXIT POOH -POOH FROM 9526'TO 9494' -UPWT198K -L/D RTTS 6/27/2013 00:00 - 01:00 1.00 STWHIP P WEXIT RIH -RIH FROM 9494'TO 9890'WITH 4"DP -RIH ON ELEVATORS PICKING UP STANDS OUT OF DERRICK 01:00 - 02:00 1.00 - STWHIP P WEXIT !FLUID SWAP FROM 10.2 PPG BRINE TO 8.7 PPG QUICK DRILL -CIRCULATE 350 GPM,2200 PSI 02:00 02:30 0.50 STWHIP P WEXIT PERFORM NEGATIVE FLOW CHECK -TEST GOOD,CONTACT WTLAND RECIEVE APPROVAL TO PROCEDE W 02:30 - 05:00 2.50 STWHIP N DPRB 9,890.00 EXIT I MILL WINDOW UNABLE TO ROTATE DUE TO HOLE FRICTION I-BUILD EP MUD LUBE PILL -CBU 1X 05:00 12:00 7.00 STWHIP P WEXIT MILL WINDOW -MILL 6"WINDOW FROM 9901'TO 9914' -DRILL NEW FORMATION FROM 9914'TO 9917' -350 GPM,1900 PSI ON,1800 PSI OFF -90 RPM,TQ ON 6K,TQ OFF 5K -UP WT 180K,DN WT 130K,RT WT 155K -MW 8.7 PPG IN,8.7 PPG OUT SPR'S:9917'MD(8287'ND) MW=8.7 PPG #1 MP-20/30 SPM=565/675 PSI #2 MP-20/30 SPM= 550/680 PSI TOP OF WINDOW-9901 BOTTOM OF WINDOW-9914 Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 40 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) i — Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM I Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 16:00 4.00 STWHIP P WEXIT DRILL W/WINDOW MILL I -FROM 9917'TO 9943'(8299"TVD) -350 GPM,1900 PSI ON,1820 PSI OFF,WOB 10K -90 RPM,TQ ON 7K,TO OFF 4K -UP Wr 175K,DN WT 145K,RT WT 153K I -MW 8.7 PPG IN,8.7 PPG OUT I DRESS WINDOW WORK MILLS THROUGH WINDOW WITH ROTATION AND WITHOUT -WORK MILLS THROUGH WINDOW WITH PUMPS ON AND PUMPS OFF 16:00 - 17:30 1.50 STWHIP P r WEXIT CIRCULATE BOTTOMS-UP 1.25X ' 350 GPM,1800 PSI -60 RPM -SLOWLY RECIPROCATE PIPE WHILE CBU -PUMP HI-VIS SWEEP,NO INCREASE IN CUTTINGS WITNESSED SMALL AMOUNTS OF CEMENT DURING i I MILLING OPERATION i I HOLD PJSM WITH CREW AND BP CO.MAN, BP DRLG SUPERINTENDENTS,VP OF WELLS 17:30 - 20:00 2.50 STWHIP P WEXIT RIG UP AND PERFORM LOT I '-POOH 1 STND AND RACK BACK 1 -MUD WEIGHT:8.7 PPG,8279'TVD,9901'MD !, -PUMP 1.0 BBLS TO 568 PSI,BLEED BACK 1.0 I BBLS -LOT EMW=10.0 PPG SPR'S:9848'MD(8253'TVD) MW=8.7 PPG #1 MP-20/30 SPM=660/750 PSI _ #2 MP-20/30 SPM= 645/740 PSI 20:00 - 00:00 4.00 STWHIP P WEXIT POOH -MONITOR WELL FOR 10 MINUTES:STATIC I I-PUMP DRY JOB -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT I,-POOH ON ELEVATORS FROM 9850'MD TO 5758'MD -UP 127K, DN 112K AT 5758'MD 6/28/2013 00:00 - 01:30 1.50 STWHIP P WEXIT POOH -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -POOH ON ELEVATORS FROM 5758'MD TO 4363'MD _ -UP WT 112K, DN WT 110K AT 4363'MD 01:30 - 02:30 1.00 STWHIP P WEXIT CBU 1-350 GPM,1250 PSI -CLEAN RETURNS . -MONITOR WELL,WELL STATIC 02:30 - 04:00 1.50 STWHIP P WEXIT CONTINUE POOH ! MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -POOH ON ELEVATORS FROM 4363'MD TO I I 931'MD -MONITOR WELL,WELL STATIC -UP WT 60K, DN WT 60KAT 931'MD Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 41 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor.PARKER DRILLING CO. UWI: Active datum:18-21B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (usft) 04:00 - 07:00 3.00 STWHIP P WEXIT UD BHA -STAND BACK 4"HWDP IN DERRICK -C/O ELEVATORS F/BX T/CONVENTIONAL -UD 9 EACH 6 1/2"DC -DOWNLOAD MWD TOOL -CONTINUE TO UD BHA -UPPER WATERMELLON MILL GAUGED AT 6.062 07:00 - 10:00 3.00 STWHIP P WEXIT FLUSH STACK DRAIN STACK -FLUSH CHOKE AND KILL LINE -BOLDS,PULL AND SERVICE WEAR RING -M/U BOP STACK FLUSHING TOOL AND CLEAN OUT STACK -REINSTALL WEAR RING,RILDS 10:00 - 12:00 I ZOO STWHIP P WEXIT UD 4"HWDP STANDS OUT OF DERRICK 12:00 - 18:30 6.50 STWHIP I P WEXIT MAKE UP BHA T/411' -ORIENT MOTOR/MWD -PLUG IN AND LOAD MWD AND RADIOACTIVE SOURCE 1-UP WT45KDWWT45K 18:30 - 19:30 1.00 STWHIP P WEXIT SHALLOW HOLE TEST OF MWD I--250 GPM @ 700 PSI 19:30 - 00:00 4.50 STWHIP P WEXIT RIH WITH 6.0"DRILLING BHA FROM 411'MD TO 5237'MD -RIH ON ELEVATORS PICKING UP 4"DP FROM DERRICK -FILL DP EVERY 10 STDS -UPWT112K, DNWT102K 6/29/2013 00:00 - 00:30 0.50 STWHIP P WEXIT RIH WITH 6.0"DRILLING BHA FROM 5237'MD TO 5422'MD -RIH ON ELEVATORS PICKING UP 4"DP FROM DERRICK -FILL DP EVERY 10 STDS -UPWT112KDNWT102K 00:30 - 01:00 0.50 STWHIP P WEXIT SERVICE RIG 01:00 - 11:00 10.00 STWHIP N RREP 5,422.00 WEXIT CODE 8 -IRON DERRICK MAN DOWN -TROUBLESHOOT IDM -REPAIRED CABLE AND FUSES -CIRCULATE THE TOP OF THE HOLE MONITOR VIA TRIP TANK -NO GAIN/LOSS 11:00 - 12:00 1.00 STWHIP P WEXIT CONTINUE RIH RIH WITH 6"DRILLING BHA FROM 5422'MD TO 6374'MD -RIH ON ELEVATORS PICKING UP 4°DP STANDS FROM DERRICK -FILL DP EVERY 10 STANDS -UPWT127KDNWT112K 12:00 - 16:00 4.00 STWHIP P WEXIT CONTINUE RIH RIH WITH 6"DRILLING BHA FROM 6374'MD TO 9725'MD RIH ON ELEVATORS PICKING UP 4"DP STANDS FROM DERRICK -FILL DP EVERY 10 STANDS -UPWT169KDNWT145K Printed 8/6/2013 9:08:23AM North America-ALASKA-BP Page 42 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 16:00 - 18:00 2.00 STWHIP P WEXIT LOG -F/9725T/9900 UPWT159KDNWT139KROT WT150K - CIRC 350 GPM©2140 PSI - 25 RPM 18:00 - 00:00 I 6.00 DRILL P PROD1 DRILL 6"INTERMEDIATE HOLE FROM 9943' MD TO 10083'MD(8371'TVD) -305 GPM, 1920 PSI ON,1860 PSI OFF -60 RPM,5K TORQUE ON,4K TORQUE OFF -PU 165K,SO 135K,ROT 150K -ECD:CALC=9.58 PPG -SURVEY EVERY-90 FT -ACTUAL ROTATE TIME=.8 HRS -ACTUAL SLIDE TIME=3.7 HRS -BACKREAM 90 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT WOB=7K SPR'S:10000'MD(8324'TVD) MW=8.7 PPG #1 MP-20/30 SPM=582/705 PSI #2 MP-20/30 SPM= 580/705 PSI 6/30/2013 00:00 - 12:00 12.00 DRILL P PROD1 DRILL 6"INTERMEDIATE HOLE FROM 10083' MD TO 10441'MD(8482'TVD) -305 GPM, 2000 PSI ON,1950 PSI OFF -60 RPM,7-8K TORQUE ON,6-7K TORQUE OFF -PU 178K,SO 135K,ROT 152K -ECD:CALC=9.58 PPG -SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=5.1 HRS -ACTUAL SLIDE TIME=3.0 HRS -JAR HRS=12.6 HRS -BACKREAM 93 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT WOB=10K SPR'S:10000'MD(8324'ND) MW=8.7 PPG #1 MP-20/30 SPM=582/705 PSI #2 MP-20/30 SPM= 580/705 PSI 12:00 - 12:30 0.50 DRILL P PROD1 DRILL 6"INTERMEDIATE HOLE FROM 10441' MD TO 10454'MD(8483'TVD) -305 GPM, 2100 PSI ON,1970 PSI OFF -60 RPM,8K TORQUE ON,7K TORQUE OFF -PU 180K,SO 135K,ROT 152K -ECD:CALC=9.18 PPG -SURVEY EVERY-30 FT -BACKREAM 93 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB=12K 12:30 - 14:00 1.50 DRILL N RREP 10,454.00 PROD1 CODE 8 -MONITOR WELL 10 MIN:STATIC -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -POOH ON ELEVATORS F/10454'T/9874' -PU 178K,SO 140K©9874' 14:00 - 18:00 4.00 DRILL N RREP 10,454.00 PROD1 CODE 8 -REPAIR RIG MUD PUMPS -TROUBLE SHOOT POWER END NC MOTOR Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 43 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/201311 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code I NPT NPT Depth Phase Description of Operations (hr) (usft) _ 18:00 - 20:00 2.00 DRILL N RREP 10,454.00 PROD1 CODE 8 -RIH -RIH WITH 6"DRILLING BHA FROM 9874'TO 10454' -RIH ON ELEVATORS OUT OF DERRICK -PU 180K,SO 139K @ 10454' 20:00 - 00:00 4.00 DRILL P PROD1 DRILL 6"INTERMEDIATE HOLE FROM 10454' MD TO 10492'MD(8482'TVD) 1-305 GPM, 2100 PSI ON,1970 PSI OFF -60 RPM,8K TORQUE ON,5K TORQUE OFF -PU 180K,SO 135K,ROT 152K -ECD:CALC=9.58 PPG -SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=1.8 HRS -ACTUAL SLIDE TIME=0.5 HRS -JAR HRS=14.9 HRS -BACKREAM 93 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT WOB=12K SPR'S:10444'MD(8483'TVD) MW=8.7 PPG #1 MP-20/30 SPM=622/754 PSI #2 MP-20/30 SPM= 630/780 PSI 7/1/2013 00:00 - 02:30 2.50 DRILL P PROD1 DRILL 6"INTERMEDIATE HOLE FROM 10492' MD TO 10522'MD(8482'TVD) -305 GPM, 2100 PSI ON,1970 PSI OFF -60 RPM,8K TORQUE ON,5K TORQUE OFF -PU 180K,SO 135K,ROT 152K -ECD:CALC=9.58 PPG -SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=0.0 HRS -ACTUAL SLIDE TIME=1.5 HRS -JAR HRS=16.4 -BACKREAM 93 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB=12K NOTE: -UNABLE TO TRANSFER WEIGHT TO BIT WHEN SLIDING,NO DIFFERENTIAL -CONTACT ODE,DISCUSS EP MUD LUBE SWEEP 02:30 - 03:30 1.00 DRILL N DPRB 10,522.00 PROD1 CBU -315 GPM,1900 PSI -30 RPM,2.2K TORQUE -RECIPROCATE PIPE AT 30 FT/MIN -SAND AND CHERT RETURNS,SHAKERS CLEAN PRIOR TO POOH 03:30 - 04:30 1.00 DRILL N DPRB 10,522.00 PROD1 MONITOR WELL 10 MIN:STATIC MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -POOH ON ELEVATORS F/10522'T/9874' -PU 178K,SO 140K @ 9874' 04:30 - 05:30 1.00 DRILL N ' DPRB 10,522.00 PROD1 r CIRCULATE -305 GPM,1850 PSI -30 RPM,2K TORQUE RECIPROCATE PIPE AT 30 FT/MIN -CIRCULATE EP MUD LUBE SWEEP SURFACE TO SURFACE 05:30 - 06:30 1.00 DRILL N DPRB 10,522.00 ! PROD1 RIH -RIH WITH 6"DRILLING BHA FROM 9874'TO 10552' -RIH ON ELEVATORS OUT OF DERRICK Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 44 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 , End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM 'Rig Release:7/23/2013 Rig Contractor.PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To I Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (u ) L- 06.30 07:30 1.00 DRILL N DPRB 10,552.00 PROD1 CIRCULATE -305 GPM,1850 PSI -CIRC.PRESSURE INCREASE TO 2350 PSI, CONTAMINATED MUD PRESENT IN POSSUM BELLY -TAKE 130 BBLS CONTAMINATED MUD TO CUTTINGS BOX 07:30 - 11:30 4.00 DRILL N DPRB 10,522.00 PROD1 POH ON ELEVATORS FROM 10522'MD TO 9874'MD PU 180K,SO 130KAT 10522'MD -WAIT ON TRUCKS TO SUCK OUT CUTTING BOX 11:30 - 12:00 0.50 DRILL N DPRB 10,522.00 PROD1 CIRCULATE 305 GPM,1875 PSI -TAKE 70 BBLS OF CONTAMINATED MUD TO RESERVE PIT#3 12:00 - 13:00 1.00 DRILL N DPRB 10,522.00 PROD1 CBU -275 GPM,1875 PSI -20 RPM,3K TORQUE UP WT175KDNWT140K 13:00 - 13:30 0.50 DRILL N DPRB 10,522.00 PROD1 RIH WITH'6.0"DRILLING BHA FROM 9874'MD TO 10522'MD -RIH ON ELEVATORS PICKING STANDS OUT OF DERRICK -PU WT 180K SO WT 139K @ 10500' 13:30 - 00:00 10.50 DRILL P PROD1 DRILL 6"INTERMEDIATE HOLE FROM 10522' I MD TO 10662'MD(8544'ND) -275 GPM, 1800 PSI ON,1700 PSI OFF '-65 RPM,7K TORQUE ON,5K TORQUE OFF -PU 180K,SO 140K,ROT 152K -ECD:CALC=9.58 PPG -SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=2.1 HRS -ACTUAL SLIDE TIME=4.0 HRS JAR HRS=22.5 • BACKREAM 31 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB SLIDING 24K-WOB ROT 15K SPR'S:10630'MD(8534'ND) MW=8.7 PPG #1 MP-20/30 SPM=590/715 PSI #2 MP-20/30 SPM= 590/715 PSI Printed 8/6/2013 9 06:23AM North America-ALASKA-BP Page 45 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 7/2/2013 00:00 - 03:00 3.00 DRILL P PROD1 DRILL 6"INTERMEDIATE HOLE FROM 10662' MD TO 10684'MD(8550'TVD) • -275 GPM, 1800 PSI ON,1660 PSI OFF • -60 RPM,7K TORQUE ON,5-6K TORQUE OFF •-PU 180K,SO 140K,ROT 152K -ECD:CALC=9.5 PPG -SURVEY EVERY—93 FT -ACTUAL ROTATE TIME=0.7 HRS -ACTUAL SLIDE TIME=0.9 HRS • -JAR HRS=24.1 -BACKREAM 31 FT PRIOR TO CONNECTIONS • 1-MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB SLIDING 15-20K-WOB ROT 15K SPR'S:10684'MD(8550'TVD) MW=8.7 PPG #1 MP-20/30 SPM=540/670 PSI #2 MP-20/30 SPM= 555/670 PSI NOTE: -BIT HOURS HIGH,NOTICED INCREASED 'TORQUE 3-5K,INCREASED DIFFICULTY SLIDING,POSSIBLE BIT UNDERGAUGE CONTACT ODE AND REQUEST PERMISSION TO POOH FOR BIT,APPROVED 03:00 - 04:30 1.50 DRILL P PROD1 CBU • -275 GPM,1750 PSI,REDUCE TO 200 GPM 1200 PSI ON DN STROKE •-60 RPM,5-6K TORQUE -RECIPROCATE PIPE AT 30 FT/MIN • -SAND RETURNS,SHAKERS CLEAN PRIOR TO POOH 04:30 - 12:00 7.50 DRILL P PROD1 POOH ON ELEVATORS FROM 10684'MD TO 411'MD -MONITOR WELL 10 MINUTES,STATIC -MW IN 8.7PPG,MW OUT8.7PPG PU 180K,SO 140KAT 10684'MD • 12:00 - 19:00 7.00 DRILL P PROD1 UD BHA -MONITOR WELL 10 MINUTES,STATIC -PULL NUCLEAR SOURCE -DOWN LOAD MWD -SERVICE BREAK MWD UD TO PIPE SHED -MW IN 8.7PPG,MW OUT8.7PPG •-PU 45K,SO 45K AT 411'MD CLEAN AND CLEAR RIG FLOOR 19:00 - 00:00 5.00 BOPSUR P PROD1 TEST BOPE TO 250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 4.0"AND 4.5"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHART -TEST WITNESS WAIVED BYAOGCC REP JEFF TURKINGTON 7/3/2013 00:00 - 05:30 5.50 BOPSUR P PROD1 TEST BOPE TO 250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 4.0"AND 4.5"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -TEST WITNESS WAIVED BYAOGCC REP JEFF TURKINGTON TEST MANUAL AND SUPER CHOKE TO 1500 PSI FOR POSITIVE PRESSURE TEST Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 46 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:OOAM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:30 - 06:30 1.00 DRILL P PROD1 TEST BOPE -DRAIN STACK AND BLOW DOWN SURFACE LINES -PULL TEST PLUG AND SET WEAR RING RIG DOWN TEST JOINT. 06.30 - 12:00 5.50 DRILL P PROD1 PU BHA -CHANGE OUT ELEVATORS PU MWD AND BREAK OUT STABILIZER.LD MWD.PU MWD AND UPLOAD DATA. -UP WT=38 KLBS,DN WT=38 KLBS. 12:00 - 14:00 2.00 DRILL P PROD1 PU 6"DRILLING BHA. -LOAD RADIOACTIVE SOURCE. -UP WT=45 KLBS,DN WT=45 KLBS -SHALLOW HOLE TEST ROTARY STEERABLE MWD. -CIRC 300 GPM AT 940 PSI. INSTALL PS-21 AUTOMATIC SLIPS. 14:00 - 23:00 9.00 DRILL P PROD1 RIH WITH 6"DRILLING BHA FROM 386'MD TO 9930'MD. RIH ON ELEVATORS WITH 4"DP. -UP WT=168 KLBS,DN WT=140 KLBS -BREAK CIRCULATION EVERY 20 STANDS. CIRCULATE AT 100 GPM AND 490 PSI -SPR'S:10684'MD(8550'TVD) MW=8.7 PPG -#1 MP-20/30 SPM=465/585 PSI #2 MP-20/30 SPM= 450/580 PSI 23:00 - 00:00 1.00 DRILL I P PROD1 CBU 1X -300 GPM,1850 PSI -0 RPM,OK TORQUE -DID NOT RECIPROCATE PIPE -CLEAN RETURNS,SHAKERS CLEAN PRIOR TO POOH 7/4/2013 00:00 - 02:30 2.50 DRILL P PROD1 RIH -RIH WITH 6"DRILLING BHA FROM 9930'MD TO 10416'MD -RIH ON ELEVATORS WITH 4"DP OUT OF DERRICK PU 168 K,SO WT 140 K -FILL PIPE EVERY 20 STANDS -WASH DN FROM 10416'TO 10684'©315 GPM,1850 PSI,PIPE HANGING UP SLIGHTLY, CASING DRAG -SHOOT CHECK SHOT SURVEY, UN-RELIABLE RESULTS Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 47 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 • Rig Contractor PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ! (usft) 02:30 - 03:00 0.50 DRILL P PROD1 ;DRILL 6"INTERMEDIATE HOLE FROM 10684' MD TO 10697'MD(8554'TVD) -305 GPM, 1910 PSI ON,1880 PSI OFF -80 RPM,6K TORQUE ON,6K TORQUE OFF -PU 180K,SO 142K,ROT 152K -ECD:CALC=9.4 PPG -SURVEY AT 10694 FT,UNRELIABLE DUE TO MAGNETIC INTERFERENCE -ACTUAL ROTATE TIME=0.3 HRS I-ACTUAL SLIDE TIME=0.0 HRS JAR HRS=24.5 HRS NO BACKREAMING -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB ROT 2K NOTE: -CONTACT ODE FOR BAD SURVEYS -DECIDE POOH TO LAST TWO GOOD SURVEY POINTS-AT 10600'AND 10505' 03:00 - 06:00 3.00 DRILL N DFAL 10,695.00 PROD1 BACKREAM OUT OF HOLE FOR SURVEY I CHECK SHOTS • -FROM 10695'MD TO 10505'MD -TAKE CHECK SHOTS AT 10,600'AND 10505' --315 GPM,1800 PSI,AT 10698' -50 RPM,2-4K TORQUE,ROT 152K -BACKREAMING SPEED 150 FT/HR -MW IN 8.7PPG,MW OUT 8.7PPG SPR'S:10505'MD(8950'TVD) MW=8.7 PPG #1 MP-10/20 SPM=380/475 PSI #2 MP-10/20 SPM= 370/470 PSI 06:00 - 12:00 6.00 DRILL N DFAL 10,695.00 PROD1 I POOH ON ELEVATORS FROM 10505'MD TO 3214'MD -MONITOR WELL FOR 10 MINUTES:STATIC -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -PU 174K,SO 144KAT 10505'MD 12:00 - 14:00 2.00 DRILL N DFAL 10,695.00 PROD1 POOH ON ELEVATORS FROM 3214'MD TO 386'MD -MONITOR WELL FOR 10 MINUTES:STATIC -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -PU 45K,SO 45K AT 386'MD 14:00 - 18:00 4.00 DRILL N DFAL 10,695.00 PROD1 UD BHA -MONITOR WELL FOR 10 MINUTES:STATIC -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT • -CHANGE OUT PS-21 INSERTS -POH WITH 6"BHA FROM 386'MD -PJSM FOR PULLING RADIOACTIVE SOURCE -PULL RADIOACTIVE SOURCE DOWNLOAD MWD -CHANGE OUT MWD 18:00 - 22:00 4.00 DRILL N DFAL 10,695.00 PROD1 RIH 6"DRILLING BHA TO 836'MD -PLUG IN AND UPLOAD MWD '-PJSM AND LOAD RADIOACTIVE SOURCE -CHANGE OUT PS-21 INSERTS 22:00 - 00:00 2.00 DRILL N DFAL 10,695.00 PROD1 RIH WITH 6"DRILLING BHA FROM 388'MD TO 2751'MD -RIH ON ELEVATORS PICKING UP 4'DP OUT OF DERRICK FILL PIPE EVERY 20 STANDS Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 48 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 7/5/2013 00:00 - 06:00 6.00 DRILL N DFAL 10,695.00 PROD1 RIH WITH 6"DRILLING BHA FROM 2751'MD TO 9849"MD -RIH ON ELEVATORS PICKING UP 4"DP FROM DERRICK -FILL PIPE EVERY 20 STDS -PU 167K,SO 142KAT 9849'MD 06:00 - 08:00 2.00 DRILL N DFAL 10,695.00 PROD1 CHANGE OUT SAVER SUB 08:00 - 11:30 3.50 DRILL N DFAL 10,695.00 PROD1 RIH WITH 6"DRILLING BHA FROM 9849'MD TO 10317'MD -RIH ON ELEVATORS PICKING UP 4"DP FROM DERRICK -WASH DOWN FROM 10317'MD TO 10697'AT 305 GPM AND 1800 PSI -TAKE CHECK SHOT SURVEYS AT 10317'MD, 10411'MD,10504'MD AND 10600'MD -WASH DOWN FROM 10603'MD TO 10697'MD AT 150'PER HOUR PER MWD 11:30 - 12:00 0.50 DRILL P ' PROD1 DRILL 6"PRODUCTION HOLE FROM 10697'MD TO 10730'MD(8555'TVD) -305 GPM, 1920 PSI ON,1795 PSI OFF -100 RPM,5K TORQUE ON,4K TORQUE OFF -PU 170K,SO 145K,ROT 155K ECD:CALC=9.0 PPG SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=0.1 HRS -ACTUAL SLIDE TIME=0 HRS JAR HOURS=24.6 HRS -BACKREAM 25 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT WOB=2K SPR'S:10697'MD(8554'TVD) MW=8.7 PPG #1 MP-20/30 SPM=482/610 PSI #2 MP-20/30 SPM= 485/610 PSI 97.8 BELS LOSS FOR TOUR 12:00 - 00:00 12.00 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 10730'MD TO 11170'MD(8642'TVD) -305 GPM, 1920 PSI ON,1795 PSI OFF -100 RPM,7K TORQUE ON,5K TORQUE OFF -PU 168K,SO 137K,ROT 154K -ECD:CALC=9.4 PPG -SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=9.8 HRS -ACTUAL SLIDE TIME=0 HRS -JAR HOURS=34.4 HRS -BACKREAM 25 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB=8K SPR'S:11170'MD(8642'TVD) MW=8.7 PPG #1 MP-20/30 SPM=530/660 PSI #2 MP-20/30 SPM= 530/655 PSI -75 BBLS LOSS FOR TOUR Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 49 of 56 Operation Summary Report Common Well Name. 18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task I Code NPT NPT Depth Phase Description of Operations (hr) (usft) 7/6/2013 00:00 - 12:00 12.00 DRILL P PROD1 DRILL 6°PRODUCTION HOLE FROM 11170'MD TO 11557'MD(8694'TVD) '-305 GPM, 2010 PSI ON,1990 PSI OFF -150 RPM,8K TORQUE ON,6K TORQUE OFF -PU 172K,SO 143K,ROT 152K -ECD:CALC=9.2 PPG -SURVEY EVERY-93 FT j -ACTUAL ROTATE TIME=10.5 HRS -ACTUAL SLIDE TIME=0 HRS -JAR HOURS=44.9 HRS -BACKREAM 20 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB=9K SPR'S:11545'MD(8693'TVD) MW=8.7 PPG #1 MP-20/30 SPM=610/745 PSI #2 MP-20/30 SPM=610/740 PSI -125 BBLS LOSS FOR TOUR 12:00 - 18:00 6.00 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 11557'MD TO 11644'MD(8705'TVD) -305 GPM, 2000 PSI ON,1990 PSI OFF -150 RPM,8K TORQUE ON,6K TORQUE OFF PU 178K,SO 140K,ROT 152K -ECD:CALC=9.4 PPG -SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=4.7 HRS -ACTUAL SLIDE TIME=0 HRS -JAR HOURS=49.6 HRS -BACKREAM 32 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB=15K SPR'S:11644'MD(8705'TVD) MW=8.7 PPG #1 MP-20/30 SPM=590/725 PSI #2 MP-20/30 SPM=580/720 PSI 18:00 - 18:30 0.50 DRILL N DFAL 11,644.00 PROD1 CBU 1X -305 GPM,1980 PSI ! _ -80 RPM,5K TORQUE 18:30 - 20:30 2.00 DRILL N DFAL 11,644.00 PROD1 PUMP OUT OF HOLE FROM 11644'MD TO 11173'MD -MONITOR WELL FOR 10 MINUTES:STATIC -127 GPM,708 PSI 11173'MD -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT NOTE: -ATTEMPTED TO PULL ON ELEVATORS, SWABBING 20:30 - 21:30 1.00 DRILL N DFAL 11,644.00 PROD1 POOH ON ELEVATORS FROM 11173'MD TO 10889'MD -MONITOR WELL FOR 10 MINUTES:STATIC -PU 178-193K,SO 145K AT 11173'MD -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT NOTE:10-15K CASING DRAG,CONTINUE PUMP OUT OF HOLE 21:30 - 22:30 1.00 DRILL N DFAL 11,644.00 PROD1 PUMP OUT OF HOLE FROM 10889'MD TO 10416'MD -MONITOR WELL FOR 10 MINUTES:STATIC -127 GPM,660 PSI 10889'MD -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -POOH SPEED 1000'TO 1200'PER HR Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 50 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 22:30 - 00:00 1.50 DRILL N DFAL 11,644.00 PROD1 POOH ON ELEVATORS FROM 10416'MD TO 9755'MD -PU 172K,SO 145KAT 10416'MD -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT MONITOR WELL FOR 10 MINUTES:STATIC© 1 WINDOW -PUMP DRY JOB BLOW DOWN TOP DRIVE -45 BBLS LOSS FOR TOUR 7/7/2013 00:00 - 06:30 6.50 DRILL N DFAL 11,644.00 PROD1 POOH ON ELEVATORS FROM 9755'MD TO 386'MD -PU 172K,SO 144KAT 9755'MD MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT 06:30 - 10:30 4.00 DRILL N DFAL 11,644.00 PROD1 UD BHA -MONITOR WELL FOR 10 MIN,STATIC L/D BHA PULL PS-21'S -C/O BIT -PU 45K,SO 45K AT 386'MD MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT 10:30 - 11:00 0.50 DRILL N DFAL 11,644.00 PROD1 SERVICE RIG-GREASE CROWN AND BLOCKS 11:00 - 12:00 1.00 DRILL N DFAL 11,644.00 PROD1 DERRICK INSPECTION 20 BBL LOSS FOR THE TOUR 12:00 - 19:30 7.50 DRILL N RREP 11,644.00 PROD1 CODE 8 -RIG REPAIR,BOP,ACCUMULATOR -UNABLE TO ADJUST PRESSURE ON ANNULAR FROM RIG FLOOR REMOTE -MONITOR THE WELL 19:30 - 00:00 4.50 DRILL N DFAL 11,644.00 PROD1 PU BHA -SURFACE TO 386'MD -INSTALL PS-21 -UPLOAD MWD -C/O PS-21 INSERTS -LOAD RADIOACTIVE SOURCE -PU 45K,SO 45K AT 386'MD -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT NOTE: -1 HR TO DOWNLOAD MWD TOOL -20 BBL LOSS FOR THE TOUR 7/8/2013 00:00 - 12:00 12.00 DRILL N DFAL 11,644.00 PROD1 RIH WITH 6"DRILLING BHA FROM 387'MD TO 9849'MD -RIH ON ELEVATORS PICKING UP 4"DP FROM DERRICK -SHALLOW HOLE TEST 300 GPM,1120PSI, ROT 25 RPM,TEST GOOD -BREAK CIRCULATION EVERY 2000'MD,150 GPM,350 PSI UP WT164K,DNWT140K NOTE TOTAL LOSS 2 BBLS 12:00 - 14:30 2.50 DRILL N DFAL 11,644.00 PROD1 CIRCULATE BOTTOMS-UP 1.5 TIMES -300 GPM,1830 PSI -MONITOR WELL 10 MIN STATIC -MW IN 8.7 PPG,MW W OUT 8.7 PPG 14:30 - 17:00 2.50 DRILL N DFAL 11,644.00 PROD1 CUT AND SLIP 60'DRILLING LINE -CALIBRATE DRAW WORKS -CALIBRATE MWD DEPTH SENSOR Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 51 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay I Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor.PARKER DRILLING CO. UWI: Active datum:18-21 B plan t 64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:00 - 19:00 2.00 DRILL N RREP 11,644.00 PROD1 CODE 8 TROUBLE SHOOT ACCUMULATOR -UNABLE TO ADJUST PRESSURE ON ANNULAR FROM RIG FLOOR REMOTE -MONITOR THE WELL MOBILIZE RTTS TO RIG 19:00 - 19:30 0.50 DRILL N RREP 11,644.00 PROD1 CODE 8 POOH ON ELEVATORS FROM 9849'MD TO 9566'MD MD WT IN 8.7,MD WT OUT 8.7 PU 169K SO 145K AT 9661'MD 19:30 - 22:00 2.50 DRILL N RREP 11,644.00 I PROD1 1 CODE 8 -TROUBLE SHOOT ACCUMULATOR -MONITOR THE WELL 22:00 - 00:00 2.00 DRILL N RREP 11,644.00 PROD1 CODE 8 -PJSM W/HALLIBURTON RTTS REP -M/U RTTS AS PER HALLIBURTON REP -RTTS INADVERTENTLY SET WHEN ATTEMPTING TO GET THROUGH WEAR RING i ! NOTE TOTAL LOSS 2.5 BBLS 7/9/2013 00,00 - 02:00 2.00 DRILL N DFAL 11,644.00 PROD1 MOBILIZE SECOND RTTS -L/D FIRST RTTS -INSTALL FOSV !-MONITOR WELL 02:00 - 04:30 2.50 DRILL N DFAL 11,644.00 PROD1 RIH WITH RTTS -P/U RTTS AND M/U SAME PER HALLIBURTON REP I SET RTTS @ 220'AND HANG OFF STRING 04.30 - 06:00 1.50 DRILL N DFAL 11,644.00 PROD1 PRESSURE TEST RTTS -PRESSURE TEST RTTS TO 250 PSI FOR 5 MIN. ATTEMPT HIGH PRESSURE TEST -LOOSE GLAND PACKING CAUSED 8 GALLONS SPILLED INSIDE WELLHOUSE@ 05:05 HRS. !-ALERT HSE,SRT,AND WTL CLEAN UP MUD IN WELLHOUSE -PRESSURE TEST RTTS TO 2000 PSI FOR 5 MIN. 06:00 - 08:00 2.00 DRILL N RREP 11,644.00 PROD1 CODE 8 -DE-ENERGIZE ACCUMULATOR FOR REPAIRS -CHANGE OUT ANNULAR PRESSURE REGULATOR VALVE PERFORM FULL FUNCTION AND DRAW !DOWN TEST ON ACCUMULATOR. 08:00 - 13:30 5.50 DRILL N DFAL 11,644.00 PROD1 UD RTTS PACKER -RTTS WAS FOUND TO BE MISSING DRAG BLOCK AND ASSOCIATED SPRING HARDWARE UPON LAY DOWN. -DISCUSS WITH TOWN AND DECIDE TO CONTINUE DRILLING AHEAD. - Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 52 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:OOAM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:30 - 17:30 4.00 DRILL N DFAL 11,644.00 PROD1 RIH WITH 6.0"DRILLING BHA FROM 9566 MD TO 11644'MD RIH ON ELEVATORS PICKING UP 4"DP -BREAK CIRCULATION EVERY 2000'MD,315 GPM,1850 PSI -RPM 150,TQ OFF 5K -WASH DOWN LAST STAND NOTE:TIGHT SPOT AT 11569'MD&11617'MD 17:30 - 00:00 6.50 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 11644'MD TO 12021'MD(8694'TVD) -315 GPM, 2050 PSI ON,1000 PSI OFF -150 RPM,5-6K TORQUE ON,5K TORQUE OFF -PU 168K,SO 135K,ROT 154K ECD:CALC=9.62 PPG -SURVEY EVERY-93 FT -ACTUAL ROTATE TIME=4.2 HRS -ACTUAL SLIDE TIME=0 HRS -JAR HOURS=52.1 HRS -BACKREAM 20 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.8 PPG IN,8.8 PPG OUT WOB=8K SPR'S:11833'MD(8729'TVD) MW=8.8 PPG #1 MP-20/30 SPM=510/650 PSI #2 MP-20/30 SPM=500/640 PSI -33 BBLS LOSS FOR DAY 7/10/2013 00:00 - 11:30 11.50 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 12021'MD TO 12778'MD(8791'TVD) -305 GPM, 2000 PSI ON,1990 PSI OFF -150 RPM,6-7 TORQUE ON,5K TORQUE OFF -PU 175K,SO 138K,ROT 155K -ECD:CALC=9.1 PPG -SURVEY EVERY-94 FT -ACTUAL ROTATE TIME=7.2 HRS -ACTUAL SLIDE TIME=0 HRS -JAR HOURS=59.3 HRS -BACKREAM 20 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.8 PPG OUT WOB=8K SPR'S:12433'MD(8784'TVD) MW=8.8 PPG #1 MP-20/30 SPM=540/660 PSI #2 MP-20/30 SPM=515/660 PSI 11:30 - 13:00 1.50 DRILL P PROD1 CIRCULATE AND RECIPROCATE -315 GPM,2000 PSI 165 RPM,6K TORQUE 13:00 - 15:00 2.00 DRILL N FLUD 12,778.00 PROD1 MONITOR WELL FOR 10 MINUTES:STATIC -MUD WEIGHT:8.8 PPG IN,8.8 PPG OUT POH ON ELEVATORS FROM 12778'MD TO 11454'MD -PU 168K,SO 140KAT 11454'MD -PULLED SLICK. 15:00 - 16:30 1.50 DRILL N FLUD 12,778.00 PROD1 RIH FROM 11454'MD TO 12684'MD -RIH ON ELEVATORS PICKING UP 4"DP -PU 170K,SO 144KAT 12778'MD -NO FILL. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 53 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 16:30 - 18:00 1.50 DRILL N FLUD 12,778.00 PROD1 WASH TO 12778'AND CIRCULATE WELL -315 GPM,2150 PSI -165 RPM,6K TORQUE NOTE:OFF LOAD 180 BBL CONTAMINATED MUD 18:00 - 00:00 6.00 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 12778'MD TO 13251'MD(8805'TVD) -315 GPM, 2200 PSI ON,1210 PSI OFF -150 RPM,8.5K TORQUE ON,6K TORQUE OFF -PU 180K,SO 142K,ROT 1155K -ECD:CALC=9.58 PPG -SURVEY EVERY-94 FT -ACTUAL ROTATE TIME=3.8 HRS ACTUAL SLIDE TIME=0 HRS -JAR HOURS=63.1 HRS BACKREAM 20 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT -WOB=8.5K -SERVICE WASH PIPE @ 12778'MD SPR'S:12966'MD(8794'ND) MW=8.7 PPG #1 MP-20/30 SPM=550/700 PSI #2 MP-20/30 SPM=425/700 PSI -20 BBLS LOSS FOR DAY 1230'TOTAL FOOTAGE FOR DAY 7/11/2013 00:00 - 02:30 2.50 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 13251'MD TO 13436'MD(8804'TVD) -315 GPM, 2200 PSI ON,2200 PSI OFF -150 RPM,6-7K TORQUE ON,5-6K TORQUE OFF -PU 180K,SO 142K,ROT 155K -ECD:CALC=9.57 PPG -SURVEY EVERY-94 FT -ACTUAL ROTATE TIME=3.4 HRS -JAR HOURS=64.4 HRS -BACKREAM 20 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.8 PPG IN,8.8 PPG OUT WOB=8K SPR'S:13402'MD(8804'ND) MW=8.8 PPG #1 MP-20/30 SPM=595/746 PSI #2 MP-20/30 SPM=584/740 PSI 02:30 - 06:00 3.50 DRILL N RREP 13,339.00 PROD1 CODE 8 RACK BACK STAND. TROUBLESHOOT HYDRAULIC LEAK ON TOP DRIVE. REPLACE HYDRAULIC LINE ON TOP DRIVE. 06:00 - 06:30 0.50 DRILL P PROD1 SERVICE RIG Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 54 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:OO:OOAM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:30 - 00:00 17.50 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 13436'MD TO 14515'MD(8798'TVD) -315 GPM, 2420 PSI ON,2420 PSI OFF -150 RPM,9K TORQUE ON,7K TORQUE OFF PU 180K,SO 140K,ROT 151K -ECD:CALC=9.57 PPG -SURVEY EVERY-94 FT -ACTUAL ROTATE TIME=7.5 HRS -JAR HOURS=75.3 HRS -BACKREAM 20 FT PRIOR TO CONNECTIONS MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT WOB=8K SPR'S:14386'MD(8798'TVD) MW=8.7 PPG #1 MP-20/30 SPM=660/825 PSI #2 MP-20/30 SPM=655/820 PSI TOTAL DAILY LOSS: 150 BBLS TOTAL 24 HOUR FOOTAGE-1264' 7/12/2013 00:00 - 18:00 18.00 DRILL P PROD1 DRILL 6"PRODUCTION HOLE FROM 14515'MD TO 15706'MD(8694'TVD) -300 GPM, 2480 PSI ON,2460 PSI OFF -150 RPM,9K TORQUE ON,7K TORQUE OFF -PU 179K,SO 138K,ROT 152K -ECD:CALC=9.78 PPG -SURVEY EVERY-94 FT -ACTUAL ROTATE TIME=4.5 HRS -JAR HOURS=86.1 HRS -BACKREAM 20 FT PRIOR TO CONNECTIONS -MUD WEIGHT:8.8 PPG IN,8.8 PPG OUT WOB=9K SPR'S:15706'MD(8694'TVD) MW=8.8 PPG #1 MP-20/30 SPM=710/880 PSI #2 MP-20/30 SPM=705/875 PSI 18:00 - 22:30 4.50 DRILL P PROD1 CIRCULATE BOTTOMS UP x3 -VERIFY STATIC LOSS RATE OF 5 BPH. -DOWNLINK TO RETRACT RIBS ON AUTO-TRAK -300 GPM,2510 PSI -180 RPM,7K TORQUE -PU 183K,SO 138K,ROT 149K -CIRC 45 BBL 40 PPB LCM PILL -REDUCED DYNAMIC LOSS RATE FROM 40 BPH TO 10 BPH 22:30 - 00:00 1.50 DRILL P PROD1 TRIP OUT OF HOLE MONITOR WELL FOR 10 MINUTES:STATIC -MUD WEIGHT:8.8 PPG IN,8.8 PPG OUT POH ON ELEVATORS FROM 15706'MD TO 14578'MD -PU 183K,SO 135K PULLED SLICK. 7/13/2013 00:00 - 03:30 3.50 DRILL P PROD1 TRIP OUT OF HOLE -FROM 14587'MD TO 12182'MD -PU 180K,SO 148K -WORKED ONCE THROUGH TIGHT SPOT OF 15K OVER AT 13650'. PULLED THROUGH WITH NO OVERPULL. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 55 of 56 Operation Summary Report Common Well Name:18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud DateTme:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-218 plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task I Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 08:00 4.50 DRILL I P PROD1 MAD PASS LOG -FROM 12182'TO 11738'. -300 GPM,2115 PSI -80 RPM,3K TQ -150KRW NOTE:RUNNING SPEED 170'HR 08:00 - 10:00 2.00 DRILL P PROD1 TRIP OUT OF HOLE ON ELEVATORS FROM 11738'TO 9850' -PU 163K,SO 146K. -MW IN=8.8 PPG,MW OUT=8.8 PPG -PULLED THROUGH WINDOW WITH NO PROBLEM. 10:00 - 11:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP AT WINDOW. -315 GPM,2050 PSI -160 RPM,3K TQ,150K RW 11:00 - 17:30 I 6.50 DRILL P ' PROD1 RIH WITH6.0'DRILLING BHA FROM 9850'MD TO 15706'MD -RIH ON ELEVATORS PICKING UP 4°DP -UPWT180KDNWT133K -FILL PIPE EVERY 20 STDS -WASHED DOWN LAST STAND. NOTE:TIGHT SPOT F/13650'T/13670', WORKED THROUGH. 17:30 - 21:00 3.50 DRILL P PROD1 CIRCULATE BOTTOMS UP X3 -315 GPM,2450 PSI -170 RPM,7K TORQUE -UP WT 180K,DN WT 133K,ROT WT 147K -DYNAMIC LOSS RATE OF 10 BPH. -MONITOR WELL FOR 10 MIN. STATIC LOSS OF 4.5 BPH. 21:00 - 00:00 3.00 DRILL P PROD1 POH ON ELEVATORS FROM 15706'MD TO 12214'MD -PU 177K,SO 150KAT 12214'MD -NO HOLE PROBLEMS. _ -TOTAL LOSS FOR DAY OF 110 BBL,4.6 BPH. 7/14/2013 00:00 - 02:00 2.00 I DRILL P PROD1 TRIP OUT OF THE HOLE. -FROM 12214'TO 9850'. -UW 165K,DW 145K -PULLED NO PROBLEM THROUGH WINDOW. 02:00 - 03:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP AT WINDOW. -300 GPM,1875 PSI. -100 RPM,4K TQ,145 RW. -MONITOR WELL FOR 10 MIN. STATIC LOSS OF 4.5 BPH. -PUMP 15 BBL SLUG. 03:00 - 06:30 3.50 DRILL P PROD1 TRIP OUT OF THE HOLE -FROM 9850'TO 4165'. -UW 105K,DW 100K 06:30 - 07:30 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP AT TOP OF LINER. -300 GPM,1350 PSI. -160 RPM,2K TQ,RW 95K -ON DRY JOB UP,INCREASE IN CUTTINGS. I CLEAN UP AFTER BOTTOMS UP. -MONITOR WELL FOR 10 MIN. STATIC LOSS OF 4.5 BPH. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 56 of 56 Operation Summary Report Common Well Name 18-21 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:4/23/2013 End Date:7/14/2013 X3-012WM-C:DRILL(5,198,328.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:OO:OOAM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UW: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:30 - 10:30 3.00 DRILL P PROD1 TRIP OUT OF THE HOLE. -FROM 4165'TO 480'. -MONITOR WELL FOR 10 MIN.STATIC LOSS OF 4 BPH. 10:30 - 16:00 5.50 DRILL P PROD1 LAY 6"DRILLING ASSEMBLY DOWN. -LAY DOWN HWDP,DRILL COLLARS -LAY DOWN SOURCES. DUMP TOOLS. LAY DOWN DIRECTIONAL TOOLS. BREAK BIT OFF. BIT GRADE 1-1-CT-M-X-1-WT-TD 16:00 - 17:00 1.00 DRILL P PROD1 CLEAR AND CLEAN RIG FLOOR. Printed 8/6/2013 9:06:23AM North America-ALASKA-BP Page 1 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 7/14/2013 17:00 - 18:30 1.50 CASING P RUNPRD RIG UP CASING EQUIPMENT. 18:30 - 00:00 5.50 CASING P RUNPRD I PICK UP 12.6#4 1/2"LINER. l-FROM SURFACE TO 2078' -BAKER LOCK FIRST TWO CONNECTIONS TO !LANDING COLLAR. -CHECK FLOAT EQUIPMENT. GOOD. -TQ TURN ALL CONNECTIONS TO 4400 FT-LBS. -DOPE ALL CONNECTIONS WITH JET LUBE SEAL GUARD. ...._.-... 7/15/2013 00:00 - 07:30 7.50 CASING P RUNPRD PICKUP 12.6#4 1/2"LINER -F/2078'MD T/6236'MD UP WT 104K DN WT 100K -FILL EVERY 10 JTS -TQ TURN ALL CONNECTIONS TO 4400 FT-LBS -DOPE ALL CONNECTIONS WITH JET LUBE SEAL GUARD I-90',A MIN RUN SPEED 07:30 - 10:00 2.50 CASING P .RUNPRD MAKE UP UP LINER HANGER/PACKER ASSEMBLY i-PRE JOB FOR PICKING UP HANGER. 10:00 - 12:00 2.00 CASING P RUNPRD i CBU X 1.5 4 BPM,250PSI -ADD PAL MIX 12:00 - 14:00 2.00 CASING P RUNPRD UD LINER HANGER ASSEMBLY FOR INSPECTION SHEAR SCREWS CHECKED,GOOD. -UPWT104KDNWT100K NOTE:TORQUE TRAPPED IN STRING, ROTATED HANGER 14:00 - 20:00 6.00 CASING P RUNPRD !TIH W/4"DP -F/6236'MD T/9894'MD UPWT130KDNWT100K -FILL EVERY 10 STDS -90'A MIN RUN SPEED 20:00 - 21:00 1.00 CASING P RUNPRD CBU AT WINDOW -5 BPM,595 PSI 21:00 - 00:00 3.00 CASING P RUNPRD TIH W/4"DP -F/9894'MD T/11884'MD I-UP WT 150K DN WT 130K -FILL EVERY 10 STDS 90'A MIN RUN SPEED -PASSED HANGER THROUGH 7"LT WITH NO PROBLEM. 7/16/2013 00:00 - 03:30 3.50 CASING P RUNPRD TIH W/4"DP -F/9894'MD T/14240'MD -UP WT 175K DN WT 125K -FILL EVERY 10 STDS l-300 GPM 500 PSI '-90'A MIN RUN SPEED -SEVERAL SPOTS TOOK WEIGHT FROM 13685'DOWN. I-WORKED THROUGH WITHOUT ISSUE. NO OVERPULL ASSOCIATED WITH WORKING PIPE THROUGH. Printed 8/6/2013 9.07:02AM North America-ALASKA-BP Page 2 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT l NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 05:30 I 2.00 CASING P RUNPRD WASH DOWN -F/14240'T/14550' -160 GPM,1000 PSI. 05:30 - 06:00 0.50 CASING P RUNPRD TIH W/4"DP -F/14550'MD T/15677'MD -UP WT 175K DN WT 125K -FILL EVERY 10 STDS -90'A MIN RUN SPEED -CONTINUE RIH,WORKING THROUGH SET DOWNS WITHOUT ISSUE. 06:00 - 06:30 0.50 CEMT P RUNPRD MAKE UP CEMENT HEAD,10'PUP JOINT AND ONE JOINT OF DRILL PIPE. -WASH DOWN F/15677'TO/15706' UP WT 180,DN WT 130K 06:30 - 12:30 6.00 CEMT P RUNPRD 'CONDITION AND CIRCULATE MUD. -RECIPROCATE PIPE. -4BPM,1005 PSI. PREJOB SAFETY MEETING FOR CEMENTING OPERATIONS. 12:30 - 13:30 1.00 CASING j .N CEMT ' 15,706.00 RUNPRD CONDITION AND CIRCULATE MUD. -RECIPROCATE PIPE. -4BPM,1005 PSI. CEMENT PUMP PRV ONLY RATED FOR 4500 PSI. UNABLE TO ACHIEVE THE NECESSARY 5000 PSI PRESSURE TEST NEEDED FOR HANGER SETTING PRESSURE. WAIT ON HOT SHOT TO SHOP FOR 6500 PSI PRV. Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 3 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:30 - 18:00 4.50 CEMT P RUNPRD CEMENT4.5"PRODUCTIONLINERAS FOLLOWS: -FILL LINES WITH WATER AND PRESSURE TEST TO 5000 PSI FOR 5 MINUTES -PUMP 25 BBLS OF 12.0 PPG MUDPUSH II SPACER @ 5.0 BPM,840 PSI -PUMP 141 BBLS OF 15.8 PPG CLASS G @ 5.0 BPM,EXCESS VOLUME 40%OPEN HOLE VOLUME (YIELD 1.17 CU.FT/SK) DROP DRILL PIPE WIPER DART -RECIPROCATED PIPE 20 FT AT SURFACE WHILE PUMPING CEMENT AT 5 BPM PERFORM DISPLACEMENT WITH RIG PUMPS WITH CEMENTERS -132.9 BBLS 8.6 PERF PILL DISPLACED AT 5 BPM:ICP 86 PSI 4%RETURN FLOW,FCP 3052 PSI 6%RETURN FLOW -63.0 BBLS 8.8 PPG MUD DISPLACED AT 5 BPM:ICP 3150 PSI 6%RETURN FLOW,FCP 2908 PSI 5%RETURN FLOW -DISPLACEMENT FLUID:132.9 BBLS OF 8.6 PPG PERF PILL FOLLOWED BY 63 BBL OF 8.8 PPG MUD LATCH UP CONFIRMED AT 94.7 BBLS 'DISPLACED -REDUCE RATE TO 3 BPM PRIOR TO PLUG BUMP:FINAL CIRCULATING PRESSURE 2908 PSI -TOTAL DISPLACEMENT VOLUME 195.9 BBLS (MEASURED BY CEMENTER UNIT) -RECIPROCATE PIPE 20 FT AT SURFACE DURING DISPLACEMENT,NOTE:STOP RECIPROCATING @ 15:15 DUE TO LINER SETTING PRESURE,78 BBLS INTO DISPLACEMENT -TOTAL LOSSES FROM CEMENT EXIT SHOE TO CEMENT IN PLACE:29.6 BBLS -INCREASE PRESSURE TO 4800 PSI TO SET HANGER AFTER PLUG BUMP -SET DOWN 50K TO CONFIRM HANGER SET -CHECK FLOATS-GOOD -CIP@15:48 -PU TO EXPOSE DOG SUB AND SET DOWN ON LINER TOP 45K,20 RPM -PU TO REMOVE RS PACK-OFF AND CIRCULATE EXCESS CEMENT OFF LINER TOP -PU RUNNING TOOL ABOVE LINER TOP AND MARK NO-GO.CIRCULATE 3 BU AT 15 BPM -40 BBLS OF EXCESS CEMENT TO SURFACE ON BOTTOMS UP 18:00 - 20:00 2.00 CEMT P RUNPRD PJSM FOR SEA WATER DISPLACMENT -DISPLACE W/8.5 SEAWATER -10 BPM 1400 PSI 20:00 - 20:30 0.50 CEMT P RUNPRD R/D CEMENT HEAD AND LINES. CLEAN UP UNDER SHAKERS AND SURFACE EQUIPMENT. 20:30 - 23:30 3.00 CEMT P RUNPRD TRIP OUT OF THE HOLE W/4"DP. -NEGATIVE FLOW TEST 30 MIN. STATIC. -PJSM ON TRIP OUT OF HOLE -TOH F/9444'T/5680' 23:30 - 00:00 0.50 CEMT P RUNPRD SERVICE RIG. Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 4 of 10 Operation Summary Report Common Well Name: 18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase 1 Description of Operations (hr) (usft) 7/17/2013 00:00 - 08:30 8.50 CEMT P RUNPRD LAY DOWN 4"DP. -F/5680'T/SURFACE -UD BAKER LINER RUNNING TOOL 08:30 - 15:30 7.00 BOPSUR P RUNPRD TEST BOPE TO 250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 4.5",4"AND 2 7/8"TEST JOINTS -FUNCTIONED PREVENTERS FROM BOTH REMOTE STATIONS. -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -TEST WAIVED BY AOGCC REP JOHN CRISP 15:30 - 16:30 1.00 BOPSUR P RUNPRD SAFETY MEETING WITH BP LEADERSHIP TEAM -GWO AREA VP ONSHORE-AL VICKERS -AK REGION WELLS VP-GREG MATTSON -NS ROTARY SUPERINTENDENT-DARRELL GREEN 16:30 - 22:00 5.50 BOPSUR P .RUNPRD CONTINUE TO TEST BOPE TO 250 PSI LOW, 3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 4.5",4"AND 2 7/8"TEST JOINTS '-ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -TEST WAIVED BY AOGCC REP JOHN CRISP 22:00 - 00:00 2.00 • BOPSUR N SFAL RUNPRD -TROUBLE SHOOT 2 7/8"ANNULAR AND RAM TESTS. _ 7/18/2013 00:00 - 04:30 4.50 BOPSUR N SFAL RUNPRD CONTINUE TO TROUBLE SHOOT TESTING 1 WITH 2 7/8"TEST JOINT. •-PULL AND CHECK TEST PLUG. -INSPECT TEST JOINT. -ISOLATE AND CHECK VALVES ON TEST PUMP. 1-RE-TEST ANNULAR AND RAMS WITH 2 7/8" TEST JOINT. -GOOD TEST. 04:30 - 06:00 1.50 BOPSUR P RUNPRD CONTINUE TO TEST BOPE. -PERFORM KOOMY DRAWDOWN TEST. 06:00 - 07:30 1.50 CASING P RUNPRD PRESSURE TEST 4 1/2"PRODUCTION LINER TO 250/3500 PSI FOR 5/30 CHARTED MIN. -PRE JOB SAFETY MEETING. •-RIG UP TEST EQUIPMENT TO TEST LINER AGAINST BLIND/SHEAR RAMS. PRESSURE TEST LINER 250/3500 PSI. 07:30 - 09:00 1.50 PERFOB P OTHCMP RIG UP 2 7/8"HANDLING EQUIPMENT 09.00 - 12:00 3.00 PERFOB P OTHCMP HELD PJSM P/U PERF GUNS -REVIEW THE HAND INJURY THAT HAPPENED ON PARKER 273 -CHANGE OUT BX ELEVATOR INSERTS T/2 7/8" 12:00 - 13:00 1.00 PERFOB P OTHCMP HELD PJSM P/U PERF GUNS,WITH NEW TOUR CREW AND SLB GUN HANDS 13:00 - 14:00 1.00 PERFOB P OTHCMP TRIP IN HOLE WITH 2 7/8"HMX PERF GUNS,6 SPF,60°PHASING. _ -T/1185'MD. 14:00 - 14:30 0.50 PERFOB P ! I OTHCMP BOP DRILL -HELD MR WITH CREW,WSL,RIG MANGER 14:30 - 17:00 2.50 PERFOB N HMAN 1,185.00 OTHCMP OPENED IBOP OVER THE GUNS CAUSING WATER INTO THE GUNS. -LAVED DOWN 5 GUNS TO BE INSPECTED -3 GUNS WERE WERE REPLACED(HOT SHOT FROM SLB DEADHORSE) Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 5 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor.PARKER DRILLING CO. UWI: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:00 - 17:30 0.50 PERFOB P OTHCMP TRIP IN HOLE WITH 2 7/8"HMX PERF GUNS,6 SPF,60°PHASING. -F/1185' T/1216'MD 17:30 - 18:00 0.50 PERFOB P OTHCMP SERVICE RIG&TOP DRIVE 18:00 - 19:30 1.50 PERFOB N HMAN 1,216.00 OTHCMP WAITING ON PERF GUNS 19:30 - 20:30 1.00 PERFOB P OTHCMP TRIP IN HOLE WITH 2 7/8"HMX PERF GUNS,6 SPF,60°PHASING. -F/1216' T/1368'MD. -MAKE UP FIRING HEAD AND DISCONNECT. 20:30 - 00:00 3.50 PERFOB P OTHCMP TRIP IN HOLE WITH PERF GUNS ON 2 7/8" PAC DRILL PIPE -F/1368' TI 3409'MD -PU 60K;SO 60K. 7/19/2013 00:00 - 04:00 4.00 PERFOB P OTHCMP CONTINUE TO TRIP IN HOLE WITH PERF GUNS ON 2 7/8"PAC DRILL PIPE. •-F/3409' T/6233'MD -PU 90K;SO 84K. 04:00 - 05:00 1.00 t PERFOB P OTHCMP RIG UP TO RUN 2 7/8"PERF GUNS ON 4" HT-38 DRILL PIPE OUT OF THE DERRICK. -RIG DOWN 2 7/8"TOOLS AND HANDLING EQUIPMENT. -CHANGE INSERTS ON BX ELEVATORS TO 4" INSTALL PS-21 SLIPS. 05:00 - 12:00 7.00 PERFOB P OTHCMP TRIP IN THE HOLE WITH 2 7/8"PERF GUN ASSEMBLY ON 4"DRILL PIPE OUT OF THE DERRICK. -PRE JOB SAFETY MEETING. -F/6233'T/15,617' 12:00 - 12:30 0.50 PERFOB P OTHCMP SPACE OUT TO FIRE GUNS. -TAG 4 1/2"LINER LANDING COLLAR AT 115,617'MD. -PICK UP 416.97'TO SPACE OUT GUNS. -BOTTOM SHOT AT 15,200'MD. -TOP SHOT AT 13,890'MD. -PU 178K LBS;SO 134K LBS. 12:30 - 13:00 0.50 PERFOB P OTHCMP PRE JOB SAFETY MEETING FOR FIRING THE PERF GUNS. -RIG CREW,SCHLUMBERGER TCP REPRESENTATIVE,WSLAND RIG MANAGER. REVIEW FIRING SEQUENCE. -DISCUSS PLAN FORWARD. I-REVIEW WELL CONTROL CONSIDERATIONS. 13:00 - 14:30 1.50 PERFOB P OTHCMP FIRE GUNS AND PERFORATE WELL. -CLOSE PIPE RAMS AND INITIATE FIRING SEQUENCE. -PRESSURE UP TO 800 PSI AND BLEED OFF 4 TIMES. -FIRE GUNS: -LOST 17 BBLS INITIALLY. -WELL BEGAN TAKING FLUID AT 3 BPH. 14:30 - 15:00 0.50 PERFOB P OTHCMP 'PULL OUT OF THE HOLE STANDING BACK DRILL PIPE TO GET ABOVE TOP PERF. -F/15,200'T/15,012'MD. -PS-21 SLIPS LOCKED UP ON STAND. 15:00 - 16:00 1.00 PERFOB N RREP 15,012.00 OTHCMP RELEASE PS-21 SLIPS. -MECHANIC RELEASED SLIPS. GREASE AND REPAIR SLIPS. Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 6 of 10 Operation Summary Report Common Well Name.18-21 AFE No Event Type:COM-ONSHORE(CON) • Start Date:7/14/2013 I End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) • Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. WWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (usft) 16:00 - 17:00 1.00 PERFOB P OTHCMP I CONTINUE TO PULL OUT OF THE HOLE STANDING BACK DRILL PIPE TO GET ABOVE TOP PERF. -F/15,012'T/13,594'MD. -PU 175K LBS;SO 130K LBS. 17:00 - 00:00 7.00 PERFOB P OTHCMP PULL OUT OF THE HOLE,LAYING DOWN 4" • DRILL PIPE. PRE JOB SAFETY MEETING. F/13,594'T/9710'MD. STATIC LOSS RATE 3 BPH. 7/20/2013 00:00 - 02:30 2.50 PERFOB P OTHCMP CONTINUE TO PULL OUT OF THE HOLE, LAYING DOWN 4"DRILL PIPE. -F/9710'T/8360'MD. -STATIC LOSS RATE 3 BPH. 02:30 - 03:00 0.50 PERFOB P OTHCMP KICK WHILE TRIPPING DRILL 1-AAR WITH RIG CREW. 03:00 07:00 4.00 PERFOB P OTHCMP I CONTINUE TO PULL OUT OF THE HOLE, LAYING DOWN 4"DRILL PIPE. -F/8360'1/6238'MD. -PU 91K LBS;SO 84K LBS. -STATIC LOSS RATE 3 BPH. -MONITOR WELL FOR 10 MIN PRIOR TO _PULLING 2 7/8"TO RIG FLOOR. 07:00 - 08:00 1.00 PERFOB P OTHCMP CHANGE HANDLING EQUIPMENT AND RIG UP TO PULL 2 7/8"PAC DRILL PIPE AND PERF ' I GUNS. -PRE JOB SAFETY MEETING. -CHANGE ELEVATOR INSERTS. -CHECK WELL CONTROL EQUIPMENT. 08:00 - 15:00 7.00 PERFOB P OTHCMP I CONTINUE TO PULL OUT OF THE HOLE, •LAYING DOWN 2 7/8"PAC DRILL PIPE. -F/6238'1/1679'MD. -PU 62K LBS;SO 62K LBS. 15:00 - 15:30 0.50 PERFOB N WAIT 1,679.00 OTHCMP WAIT FOR SCHLUMBERGER TCP PERSONNEL TO GET TO RIG FLOOR PRIOR TO PULLING PERF GUNS. 15:30 - 16:00 0.50 PERFOB P OTHCMP CONTINUE TO PULL OUT OF THE HOLE, LAYING DOWN 2 7/8"PAC DRILL PIPE. -F/1679'T/1368'MD. -RIG UP TO PULL 2 7/8"PERF GUNS. 16:00 - 17:00 1.00 PERFOB P OTHCMP PULL AND LAY DOWN 2 7/8"PERF GUNS. -F/1368'T/935'MD. 17:00 - 17:30 0.50 PERFOB P OTHCMP D-1 KICK WHILE TRIPPING DRILLAND AAR. 17:30 - 19:30 2.00 PERFOB P OTHCMP CONTINUE TO PULL AND LAY DOWN 2 7/8" PERF GUNS. F/935'MD. -ALL GUNS FIRED. 19:30 - 20:30 1.00 PERFOB P OTHCMP RIG DOWN 2 7/8"HANDLING EQUIPMENT. -RIG DOWN TONGS. -CLEAN AND CLEAR RIG FLOOR OF ALL 2 7/8" EQUIPMENT. 20:30 - 21:30 1.00 RUNCOM P RUNCMP PERFORM DUMMY RUN WITH TUBING HANGER. MAKE UP LANDING JOINT. i-PICK UP TUBING HANGER AND MAKE 1 DUMMY RUN. Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 7 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor.PARKER DRILLING CO. UWI: Active datum:18-21B plan @64.65usft(above Mean Sea Level) Date j From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:30 - 00:00 2.50 RUNCOM P RUNCMP RIG UP TO RUN 4 1/2",12.6 LB VAMTOP COMPLETION. '-RIG UP 4 1/2"HANDLING EQUIPMENT. -RIG UP DOUBLE STACK TONGS AND TORQUE TURN EQUIPMENT. -LAY OUT COMPLETION JEWELRY IN PIPE SHED. -INSPECT PIPE CAT. 7/21/2013 00:00 - 13:30 13.50 RUNCOM P RUNCMP RUN 4 1/2",12.6 LB VAMTOP COMPLETION -PRE JOB SAFETY MEETING WITH RIG CREW AND HES REPRESENTATIVES. -USE JET-LUBE SEAL GUARD. -BAKER-LOC ALL CONNECTIONS BELOW PACKER. -VERIFY RHC-M PLUG INSTALLED IN'XN' NIPPLE ABOVE WLEG. -VERIFY 6 SHEAR SCREWS ON HES'TNT' PACKER. -TORQUE TURN-ALL VAMTOP CONNECTIONS TO 4400 FT-LBS TAGGED TBS AND SPACEDOUT. -PICKED UP 3.79'PUP AND PLACED BELOW JT#220. 13:30 - 15:30 2.00 RUNCOM l P RUNCMP }MAKE UP TUBING HANGER AND LAND COMPLETION -PU 130K LBS;SO 110K LBS. -LAND TUBING HANGER AND RUN IN LOCK DOWN SCREWS. 15:30 - 16:00 0.50 RUNCOM P RUNCMP LAY DOWN LANDING JOINT AND CLEAR RIG FLOOR. 16:00 - 18:30 2.50 RUNCOM P RUNCMP REVERSE CLEAN SEAWATER AND SPOT CORROSION INHIBITED SEAWATER. -PRE JOB SAFETY MEETING ON DISPLACING FLUID. -REVERSE 146 BBLS OF 100°F SEAWATER. -REVERSE 107 BBLS OF 100°F CORROSION INHIBITED SEAWATER. -SPOT WITH 229 BBLS OF 100°F SEAWATER. 18:30 - 19:00 0.50 RUNCOM P RUNCMP PUMP 5 BBLS DOWN THE TUBING TO CLEAR THE BALL SEAT ON THE RHC-M PLUG. 19:00 - 21:00 2.00 RUNCOM P RUNCMP DROP BALL AND ROD AND PRESSURE UP TO SET 7"X 4 1/2"HALLIBURTON'TNT'PACKER. DROP BALL AND ROD AND WAIT 30 MIN TO LAND ON SEAT. -PRESSURE UP TO 250 PSI. -CONTINUE TO PRESSURE UP TO 3500 PSI AND HOLD FOR 45 CHARTED MIN. -PACKER BEGAN TO SET AT 2900 PSI. -BLEED PRESSURE OFF TO 1500 PSI. -ATTEMPT TO PRESSURE TEST'TNT' PACKER. -250 PSI LOW FOR 5 MIN. -POP-OFF ON PUMP TRIPPED. 21:00 - 22:30 1.50 RUNCOM N RREP RUNCMP TROUBLE SHOOT POP-OFFS WHILE ATTEMPTING TO TEST. -RESET POP-FF ON MUD PUMP 2. -REPLACE POP-OFF ON MUD PUMP 2. -REPLACE SENSATOR ON SECONDARY KILL I LINE. Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 8 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) r (usft) 22:30 - 00:00 1.50 RUNCOM P RUNCMP PRESSURE TEST HALLIBURTON 7"X 4 1/2" 'TNT"PACKER. -PRESSURE UP TO 3500 PSI FOR 30 CHARTED MIN. -GOOD TEST. -BLEED OFF PRESSURE ON ANNULUS. -BLEED OFF PRESSURE ON TUBING SIDE. -SEND TEST CHART AND PRESSURE TESTING CALCULATORS TO WTL. -CALL WTL AND DISCUSS PRESSURE TEST. -AUTHORIZED TO PROCEED. 7/22/2013 00:00 - 01:00 1.00 RUNCOM P RUNCMP PRESSURE UP AND SHEAR DCK VALVE AND VERIFY CIRCULATION. -PRESSURE UP ON ANNULUS. DCK SHEARED AT 3200 PSI. REVERSE CIRCULATE THROUGH SHEARED DCK VALVE: -2 BPM AND 150 PSI. -3.5 BPM AND 350 PSI. -5 BPM AND 750 PSI. -PUMPED 19 BBLS. CIRCULATE THROUGH SHEARED DCK VALVE. -2 BPM AND 27 PSI. -3.5 BPM AND 44 PSI. -5 BPM AND 103 PSI. -PUMPED 10 BBLS. 01:00 - 02:00 1.00 WHSUR P RUNCMP INSTALL TWC. -PRE JOB SAFETY MEETING. -PICK UP T-BAR AND MAKE UP. RUN AND SET TWC. 02:00 - 03:00 1.00 WHSUR P RUNCMP PRESSURE TEST TWC. -TEST TWC FROM ABOVE 250/3500 PSI FOR 5 CHARTED MIN. -GOOD TEST. -TEST TWC FROM BELOW 250/3500 PSI FOR 5/30 CHARTED MIN. -GOOD TEST. 03:00 - 13:00 10.00 BOPSUR P RUNCMP NIPPLE DOWN BOP STACK AND RISER. -PRE JOB SAFETY MEETING. -BLOW DOWN LINES AND DRAIN STACK. -PULL MASTER BUSHING AND BELL RISER. -PULL MOUSE HOLE. -NIPPLE DOWN BOP AND STAND BACK ON STUMP. SIMOPS: -LAY DOWN 4"DRILL PIPE STANDS USING OFF-LINE STAND BUILDER AND FORUM CRANE. 13:00 - 15:00 2.00 WHSUR P WHDTRE NIPPLE UP ADAPTER FLANGE AND TEST. -PRE JOB SAFETY MEETING. -NIPPLE UP ADAPTER FLANGE AND RIG UP TO TEST. SIMOPS: SURVEY CREW IN CELLAR FOR TIE-IN. Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 9 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. UWI: Active datum:18-21 B plan @64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:00 - 18:00 3.00 WHSUR P WHDTRE PRESSURE TEST ADAPTER FLANGE 250/5000. -TEST ADAPTER FLANGE 250 PSI LOW FOR 5 CHARTED MIN. -GOOD TEST. TEST ADAPTER FLANGE 5000 PSI FOR 10 CHARTED MIN. -SLOW BLEED. -TROUBLE SHOOT TEST EQUIPMENT. • -RIG UP NEW TEST RECORDER. -GOOD TEST. 18:00 - 23:00 5.00 WHSUR P WHDTRE NIPPLE UP AND TEST DRYHOLE TREE. -PRE JOB SAFETY MEETING. • -NIPPLE UP DRY HOLE TREE. FILL TREE WITH DIESEL. -RIG UP TEST EQUIPMENT. -PRESSURE TEST TREE 250/5000 PSI FOR • 5/30 CHARTED MIN. GOOD TEST. 23:00 - 00:00 1.00 WHSUR P WHDTRE RIG UP DRILL SITE MAINTENANCE LUBRICATOR AND PRESSURE TEST. PRE JOB SAFETY MEETING. -RIG UP DRILL SITE MAINTENANCE 'LUBRICATOR. -FILL WITH DIESEL. -PRESSURE TEST TO 250/3500 PSI 7/23/2013 00:00 - 02:00 2.00 WHSUR P WHDTRE PULL TWC AND RIG DOWN DRILL SITE MAINTENANCE LUBRICATOR 02:00 - 02:30 0.50 WHSUR P WHDTRE RIG UP TO REVERSE CIRCULATE DIESEL FREEZE PROTECT WITH LITTLE RED HOT OIL. 02:30 - 04:30 2.00 WHSUR P WHDTRE REVERSE 151 BBLS OF 80 DEG F DIESEL DOWN THE IA -PRE JOB SAFETY MEETING WITH LITTLE RED HOT OIL AND CREW -PRESSURE TEST ALL LINES 250/3000 PSI -GOOD TEST -PUMP 151 BBLS OF 80 DEG F DIESEL @ 2 BPM SIMOPS: -RIG UP ON FLOOR TO SLIP AND CUT DRILL LINE. DISCONNECT LINES IN INTERCONNECTS. 04:30 - 08:30 4.00 WHSUR P WHDTRE U-TUBE DIESEL FREEZE PROTECT. -ALLOW DIESEL TO U-TUBE. -FREEZE PROTECT TO 2200' SIMOPS: -SLIP AND CUT 60'OF DRILL LINE -RECALIBRATE BLOCK HIEGHT -RESET CROWN SAVER 08:30 - 11:30 3.00 • WHSUR P POST R/U DRILL SITE MAINTENENCE LUBRICATOR -TEST LUBRICATOR 250 PSI 5 MIN/3500 PSI FOR 5 MIN EACH -INSTALL BPV TEST BPV -TEST BELOW BPV 250 PSI LOW -COULD NOT OBTAIN TEST DUE TO POP-OFFS LEAKING ON MUD PUMP Printed 8/6/2013 9:07:02AM North America-ALASKA-BP Page 10 of 10 Operation Summary Report Common Well Name:18-21 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/14/2013 End Date:7/23/2013 X3-012WM-C:DRILL(3,264,000.00) Project:Prudhoe Bay Site:PB DS 18 Rig Name/No.:PARKER 272 Spud Date/Time:4/27/1989 12:00:00AM Rig Release:7/23/2013 Rig Contractor:PARKER DRILLING CO. j UVN: Active datum:18-21 B plan©64.65usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11:30 - 12:00 0.50 WHSUR P WHDTRE CHANGE OUT POP-OFF VALVE ON MUD PUMP #1 12:00 - 13:00 1.00 WHSUR P WHDTRE PRESSURE TEST BACK PRESSURE VALVE -TEST BPV 250 PSI LOW FOR 5 MIN/3500 PSI HIGH FOR 5 MIN EACH -TEST APPROVED BY BP WSL LARRY WURDEMAN 13'00 - 14:00 1.00 WHSUR P WHDTRE SAFETY MEETING W/PARKER DRILLING PRESIDENT RELEASE RIG @ 14:00 HRS • Printed 8/6/2013 9:07:02AM ru BAKER HUGHES North America - ALASKA - BP Prudhoe Bay PB DS 18 18-21 18-21B Design: 18-21B Survey Report - Geographic 15 July, 2013 BAKER Survey Report-Geographic 0 by HUGHES Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-21 Project: Prudhoe Bay TVD Reference: 18-21 B @ 64.70usft(Parker 272(47 RT to PE)) Site: PB DS 18 MD Reference: 18-21 B @ 64.70usft(Parker 272(47 RT to PE)) Well: 18-21 North Reference: True Wellbore: 18-21 B Survey Calculation Method: Minimum Curvature Design: 18-21 B Database: EDM R5K-Alaska PROD-ANCP1 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: 5,959,213.15 usft Latitude: 70°17'35.252 N From: Map Easting: 691,583.44 usft Longitude: 148°26'55.55 W Position Uncertainty: 0.00 usft Slot Radius: 0.000 in Grid Convergence: 1.46 ° Well 18-21 API No. 500292194400 Well Position +N/-S 0.00 usft Northing: 5,960,659.30 usft Latitude: 70°17'49.321 N +E/-W 0.00 usft Easting: 692,182.86 usft Longitude: 148°26'37.01 W Position Uncertainty 0.00 usft Wellhead Elevation: usft Ground Level: 17.70 usft Wellbore 18-21B API no. 500292194402 Magnetics Model Name Sample Date Declination Dip Angle Field Strength 1°) (°) (nT) BGGM2012 5/1/2013 20 55 81.05 57,632 J Design 18-21B Audit Notes: Version: Phase: ACTUAL Tie On Depth: 9,814 70 Vertical Section: Depth From(ND) +N/-S +E/-W Direction (usft) (usft) (usft) (°) 47.00 0.00 0.00 124.98 Survey Program Date: 7/15/2013 From To (usft) (usft) Survey(Wellbore) Tool Name Description 114.70 8,764.70 18-21 GyroData(18-21) GYD-CT-CMS Gyrodata cont.casing m/s 8,764.70 9,814.70 18-21 Srvy 1 MWD-Standard(18-21) MWD MWD-Standard 9,901.00 10,098.00 MWD(18-21B) INC+TREND Inclinometer+known azi trend 10,192.78 15,674.64 MWD/IIFR(18-21B) MWD+IFR+MS MWD+IFR+Multi Station 7/15/2013 11:32:19AM Page 2 COMPASS 5000.1 Build 61 111P1- BAKER Survey Report-Geographic 0 bp HUGHES Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-21 Project: Prudhoe Bay TVD Reference: 18-21B @ 64.70usft(Parker 272(47 RT to PE)) Site: PB DS 18 MD Reference: 18-21 B @ 64.70usft(Parker 272(47 RT to PE)) Well: 18-21 North Reference: True Wellbore: 18-21 B Survey Calculation Method: Minimum Curvature Design: 18-21B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +EI-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 9,814.70 60.50 130.00 8,237.47 -2,739.23 3,929.32 5,958,021.60 696,180.71 70°17'22.371 N 148°24'42.52 W TIP 9,901.00 61.05 129.63 8,279.61 -2,787.46 3,987.17 5,957,974.87 696,239.77 70°17'21.896 N 148°24'40.83 W KOP 10,000.00 66.59 125.40 8,323.29 -2,841.46 4,057.64 5,957,922.69 696,311.59 70°17'21.365 N 148°24'38.78 WI 10,098.00 68.84 121.90 8,360.46 -2,891.68 4,133.12 5,957,874.42 696,388.33 70°17'20.870 N 148°24'36.58 W I End Inc+Trend 10,192.78 69.06 120.95 8,394.50 -2,937.79 4,208.60 5,957,830.25 696,464.96 70°17'20.416 N 148°24'34.38 W' Start MWD+IIFR+MS 10,287.95 70.74 116.94 8,427.22 -2,981.02 4,286.79 5,957,789.04 696,544.23 70°17'19.991 N 148°24'32.11 W 10,382.16 71.84 118.41 8,457.44 -3,022.47 4,365.81 5,957,749.63 696,624.27 70°17'19.583 N 148°24'29.81 W 10,475.32 71.64 120.57 8,486.63 -3,066.01 4,442.81 5,957,708.07 696,702.36 70°17'19.154 N 148°24'27.56 W 10,570.74 72.25 116.14 8,516.22 -3,109.08 4,522.63 5,957,667.06 696,783.25 70°17'18.730 N 148°24'25.24 W 10,667.65 72.25 112.58 8,545.77 -3,147.14 4,606.69 5,957,631.16 696,868.25 70°17'18.355 N 148°24'22.79 W 10,761.49 73.31 110.37 8,573.55 -3,179.95 4,690.10 5,957,600.50 696,952.46 70°17 18.032 N 148°24'20.36 W 10,855.63 76.90 106.15 8,597.76 -3,208.42 4,776.46 5,957,574.25 697,039.53 70°17'17.751 N 148°24'17.84 W 10,951.06 80.25 100.46 8,616.67 -3,229.91 4,867.45 5,957,555.10 697,131.02 70°17'17.540 N 148°24'15.19 W 11,045.47 82.80 99.27 8,630.59 -3,245.90 4,959.44 5,957,541.47 697,223.38 70°17'17.382 N 148°24'12.51 W 11,140.32 82.83 99.24 8,642.45 -3,261.03 5,052.32 5,957,528.71 697,316.62 70°17'17.232 N 148°24'9.81 W 11,234.22 82.92 100.07 8,654.10 -3,276.66 5,144.17 5,957,515.44 697,408.83 70°17'17.078 N 148°24'7.13 W 11,329.17 82.86 105.01 8,665.86 -3,297.11 5,236.11 5,957,497.35 697,501.27 70°17'16.876 N 148°24'4.45 W 11,423.70 82.89 105.18 8,677.58 -3,321.54 5,326.68 5,957,475.25 697,592.42 70°17'16.635 N 148°24'1.82 W 11,518.90 82.80 103.96 8,689.44 -3,345.30 5,418.10 5,957,453.83 697,684.41 70°17'16.401 N 148°23'59.15 W 11,611.24 82.82 103.89 8,701.00 -3,367.35 5,507.02 5,957,434.07 697,773.86 70°17'16.183 N 148°23'56.56 W 11,707.05 82.55 104.12 8,713.20 -3,390.35 5,599.22 5,957,413.44 697,866.62 70°17'15.957 N 148°23'53.88 W 11,801.12 82.49 103.50 8,725.44 -3,412.61 5,689.79 5,957,393.50 697,957.73 70°17'15.737 N 148°23'51.24 W 11,895.14 82.52 103.41 8,737.71 -3,434.30 5,780.45 5,957,374.13 698,048.90 70°17'15.523 N 148°23'48.60 W 11,989.60 82.52 103.34 8,750.00 -3,455.96 5,871.57 5,957,354.81 698,140.54 70°17'15.309 N 148°23'45.94 W' 12,085.19 82.55 103.18 8,762.42 -3,477.70 5,963.82 5,957,335.43 698,233.31 70°17'15.095 N 148°23'43.25 W 12,179.75 85.17 101.88 8,772.54 -3,498.10 6,055.59 5,957,317.40 698,325.57 70°17'14.893 N 148°23'40.58 W 12,274.73 86.87 101.95 8,779.13 -3,517.66 6,148.30 5,957,300.21 698,418.74 70°17'14.700 N 148°23'37.88 W 12,369.60 88.83 101.94 8,782.69 -3,537.28 6,241.04 5,957,282.97 698,511.95 70°17'14.507 N 148°23'35.18 W 12,463.77 88.80 102.58 8,784.64 -3,557.27 6,333.04 5,957,265.34 698,604.43 70°17'14.309 N 148°23'32.50 W 12,558.44 88.86 102.38 8,786.57 -3,577.72 6,425.46 5,957,247.26 698,697.33 70°17'14.107 N 148°23'29.81 W 12,651.84 88.86 103.08 8,788.43 -3,598.30 6,516.54 5,957,229.02 698,788.91 70°17'13.904 N 148°23'27.15 W 12,747.73 88.86 103.86 8,790.33 -3,620.63 6,609.78 5,957,209.08 698,882.67 70°17'13.684 N 148°23'24.44 W 12,842.23 88.89 103.86 8,792.19 -3,643.27 6,701.51 5,957,188.80 698,974.95 70°17'13.460 N 148°23'21.77 W 12,936.23 88.92 103.68 8,793.99 -3,665.64 6,792.79 5,957,168.77 699,066.77 70°17'13.240 N 148°23'19.11 W 13,030.23 88.62 104.14 8,796.00 -3,688.23 6,884.01 5,957,148.52 699,158.53 70°17'13.016 N 148°23'16.45 W 13,124.62 87.85 98.44 8,798.91 -3,706.69 6,976.49 5,957,132.43 699,251.45 700 17'12.834 N 148°23'13.76 W 13,220.94 89.14 97.80 8,801.44 -3,720.29 7,071.81 5,957,121.27 699,347.08 70°17'12.699 N 148°23'10.98 W 13,315.35 89.14 98.29 8,802.86 -3,733.50 7,165.28 5,957,110.46 699,440.85 70°17'12.569 N 148°23'8.26 W 13,410.06 88.86 97.55 8,804.51 -3,746.55 7,259.07 5,957,099.81 699,534.94 70°17'12.439 N 148°23'5.53 W 13,504.56 89.26 96.27 8,806.06 -3,757.92 7,352.87 5,957,090.85 699,628.99 70°17'12.327 N 148°23'2.79 W 13,599.44 90.46 99.79 8,806.30 -3,771.17 7,446.80 5,957,080.00 699,723.23 70°17'12.196 N 148°23'0.06 W 13,693.29 91.32 101.97 8,804.84 -3,788.88 7,538.95 5,957,064.65 699,815.79 700 17'12.020 N 148°22'57.37 W 13,787.58 91.35 104.01 8,802.64 -3,810.07 7,630.80 5,957,045.82 699,908.14 70°17'11.811 N 148°22'54.70 W 13,881.65 91.38 105.16 8,800.40 -3,833.75 7,721.81 5,957,024.48 699,999.73 70°17'11.577 N 148°22'52.05 W 13,976.51 90.09 105.45 8,799.18 -3,858.79 7,813.29 5,957,001.79 700,091.82 70°17'11.330 N 148°22'49.38 W 14,070.68 90.12 104.63 8,799.01 -3,883.22 7,904.24 5,956,979.69 700,183.35 70°17'11.089 N 148°22'46.73 W 14,164.99 90.12 103.06 8,798.81 -3,905.79 7,995.80 5,956,959.47 700,275.46 70°17'10.866 N 148°22'44.07 W 14,259.82 90.06 102.22 8,798.66 -3,926.54 8,088.34 5,956,941.09 700,368.49 70°17'10.661 N 148°22'41.37 W 14,354.58 90.06 102.88 8,798.56 -3,947.13 8,180.83 5,956,922.88 700,461.47 70°17'10.457 N 148°22'38.68 W 14,449.90 90.06 103.18 8,798.46 -3,968.62 8,273.70 5,956,903.77 700,554.85 70°17'10.245 N 148°22'35.97 W 14,545.60 89.97 101.52 8,798.44 -3,989.09 8,367.18 5,956,885.70 700,648.82 70°1T 10.043 N 148°22'33.25 W 7/15/2013 11:32:19AM Page 3 COMPASS 5000.1 Build 61 MP- BAKER Survey Report-Geographic 0 by HUGHES Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-21 Project: Prudhoe Bay TVD Reference: 18-21 B @ 64.70usft(Parker 272(47 RT to PE)) Site: PB DS 18 MD Reference: 18-21 B @ 64.70usft(Parker 272(47 RT to PE)) Well: 18-21 North Reference: True Wellbore: 18-21B Survey Calculation Method: Minimum Curvature Design: 18-21B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +El-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 14,640.50 90.12 102.53 8,798.37 -4,008.86 8,459.99 5,956,868.31 700,742.11 70°17'9.847 N 148°22'30.55 W 14,734.85 90.12 101.98 8,798.17 -4,028.89 8,552.19 5,956,850.65 700,834.78 70°17'9.649 N 148°22'27.86 W 14,829.68 91.81 102.34 8,796.57 -4,048.86 8,644.88 5,956,833.05 700,927.94 70°17'9.452 N 148°22'25.16 W 14,924.60 91.01 101.99 8,794.23 -4,068.86 8,737.64 5,956,815.44 701,021.18 70°17'9.254 N 148°22'22.46 W 15,019.18 90.98 101.01 8,792.59 -4,087.71 8,830.31 5,956,798.96 701,114.29 70°17 9.068 N 148°22'19.76 W 15,113.35 91.59 100.70 8,790.48 -4,105.44 8,922.77 5,956,783.60 701,207.17 70°17'8.892 N 148°22'17.07 W 15,208.21 94.21 102.13 8,785.68 -4,124.18 9,015.62 5,956,767.24 701,300.47 70°17 8.707 N 148°22'14.36 W 15,302.64 96.55 102.75 8,776.83 -4,144.43 9,107.42 5,956,749.34 701,392.75 70°17'8.507 N 148°22'11.69 W 15,396.24 99.15 103.31 8,764.05 -4,165.34 9,197.75 5,956,730.76 701,483.58 70°17'8.300 N 148°22'9.06 W 15,490.55 102.43 103.23 8,746.39 -4,186.60 9,287.91 5,956,711.81 701,574.24 70°17'8.090 N 148°22'6.43 W 15,585.67 104.39 102.46 8,724.33 -4,207.17 9,378.11 5,956,693.55 701,664.94 70°17'7.886 N 148°22'3.81 W 15,674.64 104.40 100.98 8,702.21 -4,224.68 9,462.49 5,956,678.21 701,749.73 70°17'7.713 N 148°22'1.35 W 15,706.00 104.40 100.98 8,694.41 -4,230.46 9,492.31 5,956,673.19 701,779.69 70°17'7.656 N 148°22'0.48 W Projection to TD Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (usft) (usft) Name (in) (in) 3,814.70 3,510.37 13 3/8" 13.375 17.500 15,706.00 8,694.41 4 1/2"Production Liner 4.500 6.000 9,901.00 8,279.61 7"Intermediate Liner 7.000 8.500 Design Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (usft) (usft) (usft) (usft) Comment 9,814.70 8,237.47 -2,739.23 3,929.32 TIP 9,901.00 8,279.61 -2,787.46 3,987.17 KOP 10,098.00 8,360.46 -2,891.68 4,133.12 End Inc+Trend 10,192.78 8,394.50 -2,937.79 4,208.60 Start MWD+IIFR+MS 15,706.00 8,694.41 -4,230.46 9,492.31 Projection to TD Checked By: Approved By: Date: 7/15/2013 11:32:19AM Page 4 COMPASS 5000.1 Build 61 TREE= GiW 4-1/16" ACTUATOR BAKER C 1 g�♦J,,.1 SAFETY CHROME TBG&LNR,70° 10240'. INTIAL KB.ELEV= 50' BF.ELEV= NIA 13-3/8"CSG, H 64' KOP= 1300' 68#,K-55 Max Angle= 104°@ 15586'' ' ' 2014' —14-1/2"TCII X NP,ID=3.813" BTC, Datum MD= ID=12.347" Datum TVD= 8754'SS'' 30"CONDUCTOR,91.5#,H-40,0=19.125" 78' I ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 4192 3826 34 MMG DOME RK r 16 07/30/13 13-3/8"CSG,68#,L-80 BTC,ID=12.415" —I 3800' 17 1 3 6447 5701 35 KBG DMY BK 0 07/21/13 2 8051 7021 32 KBG DMY BK 0 07/21/13 9-518"X 7"ZXP HD FKR, ID=6.190" H 4358' 11 9152 7880 52 KBG DMY BK 0 07/21/13 9-5/8"X 7'ZXP HO PKR,ID=6.190" H 4378' 9-5/8"X 7'FLEXLOCK LNR HGR,ID=6.270" — 4399' k'. '' ' , g 9307' H4-112"VT X INF,ID=3.813" Minimum ID = 3.725" @ 9438' k 9336' 17"xa-112"FES TNT PKR,m=3.856" 4-1P' VT XN NIPPLE , 9368' —4-1/2"VT X NP,D=3.813" k' k ' , ,.,1;-_' 9438' —14-112"VT XN NP,ID=3.725" �i• ". k * 9445' —I 7"X 5"BKR ZXP LNR PKR w/11"PBR,ID=5.250" TOP OF 4-1/2"LNR --I 9445' ----1 * 9454' —I4-112"WLEG,ID=3.958" 4-1/2"TBG,12.6#,13CR-85VamTop, H 9454' 0152 bpf, IQ°3:95$" "- 9467' —17"X 5"BKR FLEXLOCK DG LNR HGR,D=4.320" TOP OF 7"LNR — 9585' __. 1 —9585' --{9-5/8"X 7"TNV LNR HGR,D=6.180" 7"SCAB LNR,26#,L-80 VTC,.0383 bpf,ID=6.276" --I 9603' I — 9-5/8"CSG,47#,L-80 AB MOD BUTT,ID=8.681" -I 9875' , 7"W II}STOCK(06/25/13) — 9901' 7"MILLOUT WINDOW(18-21 B)990V-9914' 7"LNR,29#,L-80 BTC,.0371 bpf,D=6.184"-{ 9901' PERFORATION SUMMARY REF LOG. ANGLE AT TOP PERF:91°@ 13890' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz SHOT SOZ 2-7/8" 6 13890-14530 0 07/19/13 2-7/8" 6 14560-14850 0 07/19/13 2-718" 6 14980-15100 0 07/19/13 2-7/8" 6 15130-15200 0 07/19/13 PBTD H 15618' 4-1/2"LNR, 12.6#,13CR 85 VT, H 15704' � , .0152 bpf, D=3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY LIFT 05/19/89 ORIGINAL COMPLETIONWELL: 18-21B 02/25/97 CTD SIDETRACK(18-21A) PERMIT No:'2121800 07/23/13 P272 SIDETRACK(18-21B) API No: 50-029-21944-02 08/02/13 JM-.) CRLG I-10 CORRECTIONS SEC 19,T11 N,R15E,1220'FNL&416'FWL BP Exploration(Alaska) I Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWellIntegrityCoordinator@bp.com] Sent: Wednesday, July 31, 2013 1:17 PM To: AK, OPS EOC Specialists; AK, OPS FS1 DS Ops Lead; AK, OPS FS1 Facility OTL; AK, OPS FS1 OSM; AK, OPS PCC EOC TL; AK, OPS Prod Controllers; AK, RES GPB East Wells Opt Engr; AK, RES GPB West Wells Opt Engr; G GPB FS1 Drillsites; AK, OPS FS1 DS2 Operator; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; Daniel, Ryan; Cismoski, Doug A; Schwartz, Guy L(DOA); Wallace, Chris D (DOA); Glasheen, Sean Cc: Regg, James B (DOA); AK, D&C DHD Well Integrity Engineer; Holt, Ryan P; AK, D&C Well Integrity Coordinator; Willis, Shane M; AK, D&C Wells CT Scheduler Subject: OPERABLE: Producer 18-21 B (PTD#2121800) Rig Workover and Sidetrack Complete- Integrity Restored All, Producer 18-21B (PTD#2121800) underwent a rig workover to repair tubing and production casing leaks,and then was sidetracked. The production casing passed a MIT-IA on 06/21/2013 and the tubing passed a MIT-T on 06/22/2013. The passing tests confirm tubing and production casing integrity. The well is reclassified as Operable. Please call with any questions. Thank you, Jack Disbrow (A1 BP Alaska-Well Integrity Coordinator GWGleba Wells Organizatior Office: 907.659.5102 WIC Email:AKDCWellIntegrityCoordinator@bp.com From: AK, D&C Well Integrity Coordinator Sent: Monday, December 03, 2012 8:43 PM To: AK, OPS FS1 OSM; AK, OPS FS1 Facility OTL; AK, OPS FS1 DS Ops Lead; AK, OPS PCC EOC TL; AK, D&C Well Services Operations Team Lead; AK, D&C Wireline Operations Team Lead; Cismoski, Doug A; AK, RES GPB East Wells Opt Engr; 'Regg, James B (DOA)'; 'Schwartz, Guy L(DOA)'; Daniel, Ryan; AK, OPS FS1 DS18 Operator; Rupert, C. Ryan; Farinez, Javier Cc: AK, D&C DHD Well Integrity Engineer Subject: NOT OPERABLE: Producer 18-21A (PTD #1961980) Sustained Casing Pressure on IA Above MOASP All, Producer 18-21A(PTD# 1961980) has been secured with a load and kill due to a failed setting of the tubing plug. At this time the well is reclassified as Not Operable until integrity of the well is confirmed post rig operations. Plan forward: 1. Slickline/Coil Tubing: Pull and re-set WRP 2. Fullbore: CMIT-TxIA Please call if you have any questions. 1 Thank you, Mehreen Vazir BPXA Well Integrity Coordinator From: AK, D&C Well Integrity Coordinator Sent:Thursday, November 08, 2012 7:13 PM To: AK, OPS FS1 OSM; AK, OPS FS1 Facility OTL; AK, OPS FS1 DS Ops Lead; AK, OPS PCC EOC TL; AK, D&C Well Services Operations Team Lead; AK, D&C Wireline Operations Team Lead; Cismoski, Doug A; AK, RES GPB East Wells Opt Engr; 'Regg,James B (DOA)'; 'Schwartz, Guy L(DOA)'; Daniel, Ryan; AK, OPS FS1 DS18 Operator; Rupert, C. Ryan; Farinez, Javier Cc: AK, D&C DHD Well Integrity Engineer; Wills, Shane M Subject: UNDER EVALUATION: Producer 18-21A(PTD #1961980) Sustained Casing Pressure on IA Above MOASP All, Producer 18-21A(PTD#1961980) has known TxIA communication that was repaired with a tubing patch. The tubing patch has been pulled at this time in preparation for a CTD sidetrack. The wellhead pressures on 11/07/2012 were tubing/IA/OA equal to 2300/2100/300. At this time the well is reclassified as Under Evaluation until secured. The plan forward: 1. E: Set WRP 2. F: CMIT-TxIA A TIO plot and wellbore schematic are attached for reference: « File: 18-21 TIO Plot 11-08-12.docx» « File: 18-21A.pdf» Thank you, Mehreen Vazir BP Alaska - Well Integrity Coordinator «OLE Object: Picture(Device Independent Bitmap)» WIC Office: 907.659.5102 WIC Email: AKDCWelllntegrityCoordinator@BP.com 2 yw\����j/j�s� THE STATE Alaska Oil and Gas ,..!,06-4 ....--4-_,-.4,- � _!��_ 01 L sKl 1 .!f es - ---7-44.i_ Conservation Commission GOVERNOR SEAN PARNELL 333 West Seventh Avenue Off, N Anchorage, Alaska 99501-3572 ALAS Main: 907.279.1433 Fax: 907.276.7542 John Egbejimba Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 18-21B BP Exploration (Alaska), Inc. Permit No: 212-180 Surface Location: 1219' FNL, 416' FWL, SEC. 19, T11N, R 15E, UM Bottomhole Location: 171' FNL, 4939' FWL, SEC. 29, T11N, R15E, UM Dear Mr. Egbejimba: 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, ,,, ,,,,i„ Ca by . Fo rster Chair DATED this 2-4; of November, 2012. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA RECEIVED ALA. OIL AND GAS CONSERVATION COMB, ON NOV 2 6 20 2, : ,,_ PERMIT TO DRILL 20 AAC 25.005 AOGCfiOGGC 1 a.Type of work: 1 b.Proposed Well Class: ®Development Oil .0 Service-Winj ®Single Zone • lc.Specify if well is proposed for: 0 Drill • 0 Lateral 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed Gas 0 Gas Hydrates 0 Redrill 0 Reentry 0 Exploratory 0 Service-WAG 0 Service-Disp 0 Geothermal 0 Shale Gas 2.Operator Name. 5.Bond ®Blanket 0 Single Well 11.Well Name and Number: BP Exploration (Alaska) Inc. Bond No 6194193• PBU 18-21B• • 3 Address 6.Proposed Depth: 12.Field/Pool(s) P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 15826'•• TVD 8697' • Prudhoe Bay/Prudhoe Bey 4a.Location of Well(Governmental Section): 7.Property Designation(Lease Number). III — Surface: ADL 028321 &028326' (►iii '1219'FNL,416'FWL, Sec. 19,T11N, R15E, UM - Top of Productive Horizon: 8.Land Use Permit: 13.Approximate Spud Date: 4756'FNL, 1648'FWL, Sec.20,T11N, R15E, UM • March 24,2013 Total Depth 9.Acres in Property: 2560 14.Distance tosNs ret property;. 2� 171'FNL,4939' FWL, Sec.29,T11N, R15E, UM• 2200' tti1 2 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL. 50' • feet 15.Distance to Nearest Well Open Surface: x 692183 • y-5960659 " Zone- ASP4 GL Elevation above MSL: 17.7'• , feet to Same Pool: 1330' 16 Deviated Wells: Kickoff Depth: 10775' feet• 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle. 100 degrees Downhole: 3256• . Surface: 2386 • • 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) 6" 4-1/2" 12.6# 13Cr80 VamTop 5250' 10575' 8553' 15825' 8697' 532 sx Class'G' 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth ND(ft): Plugs(measured). Effective Depth MD(ft). Effective Depth ND(ft). Junk(measured) 14073' 8774' None 14073' 8774' 8385', Unknown Casing Length Size Cement Volume MD ND Conductor/Structural 110' 20" 2150#Poleset 110' 110' Surface 3800' 13-3/8" 2500 sx CS III,600 sx Class'G' 3800' 3496' Intermediate 9876' 9-5/8" 750 sx Class'G' _ 9876' 8258' Production . Liner 2057' 7" 550 sx Class'G' 9585'- 11642' 8114'-8744' Liner 1258' 4-1/2" Uncemented Slotted Liner 11300'- 12558' 8724'-8781' Liner 1550' 2-3/8" Uncemented Slotted Liner 12000'- 13550' 8772'-8804' Perforation Depth MD(ft): 11610'- 13518' Perforation Depth ND(ft): 8742'-8802' 20.Attachments: 0 Property Plat 0 BOP Sketch 0 Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis 0 Diverter Sketch 0 Seabed Report ®Drilling Fluid Program 0 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative. Date 22. I hereby certify that the foregoing is true and correct: Contact Jorge Cubas,564-4971 Printed Name J.hn Egbejimba Title Engineering Team Leader Email Jorge.Cubas@bp com Signature '� • / / Phone 564-5859 Date 1/2 G/.2.(212 Commission Use Only Permit To Drill API Number: Permit Apprpval D te: See cover letter for Number: c2 ` 1 g Q 50-029-21944-02-00 11(?St(I r other requirements: Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas IZ' Other * 3 SOO f 5` $oP Ts SamplesReq'dd contained shales. p0Yes No Mud Log Req'd: 0 Yes ErNo H25 Measures: [r Yes 0 No Directional Survey Req'd: [1f Yes 0 No Spacing exception req'd: 0 Yes L7'No inclination-only svy Req'd: ❑Yes ErNo 4 / APPROVED BY APPROVED BY �� OMMISSIONER THE COMMISSION Date — l- /�- F 1 0 This permit is valid for 24 m nths from the date of approval(20 AAC 25.0 g)) S bmit Form and Attachm I�Duptt�„9`} wf�1 / 1 TREE= 4-1/16"FMC WELLHEAD= FMC 18-21B 8_21B SAFL DOTES: WELL ANGLE>700 @ ACTUATOR= NELSON 1/2"CHROME TBG&LNR _--_- KB. ELEV= 50.0' Proposal BF.ELEV= N/A KOP= 1300' x II t Max Angle= — ////) @ Daum MD= NA Datun 1VD= 8800'SS 30"CONDUCTOR,91.5#, H-40, ID=19.125' — 78' � 13-3/8"CSG,68#, K55 BTC, ID=12.347" — 64' r_ LI 133/8'CSG,68#, L-80 BTC, ID=12.415' i— 3800' I Minimum ID = " @ ' 9585' H 9-5/8"X7 TIW LNR HGR,ID=6.18" TOP OF 7"LNR — 9585' ' 1 o g, 9650' —7"X 4-1/2"TNT PI(R,D=" 9-5/8'CSG,47#,L-80 AB MOD BUTT,ID=8.681" H 9875• 160 ' ' TSGR 9758' II I TOP OF 4-1/2"LNR —I 10575' 10575' H7"X 5"LNR TEBACK,D= 4-1/2'TBG,12.6#, 13CR-80 — 10600' .0152 bpf,ID=3.958' f 7"WHPSTOCK(XX/XX/XX) —{ 10775' r LNR,29#, L-80 BTC, -0371 bpf,ID=6.184' —{ 11641' 1 , 18-21A 111, PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF:"@' �G I0 Note:Refer to Production DB for historical pert data O rkS SIZE SPF INTERVAL Opn/Sgz DATE r 4-1/2"LNR,12.6#,13CR-80D •" , — 15825' 4* * . .0152 bpf, =3.958" .#• 8 DATE REV BY COMMENTS DATE REV BY COASENTS PRUDHOE BAY UNIT 05/19/89 ORIGINAL COMPLETION WELL: 18-21B 02/25/97 CTD SIDETRACK(18-21A) PERMf Pb: 07/24/12 MSE PROPOSED RST All I`b: 50-029-21944-02 09/27/12 JRC PROPOSED RST SEC 19,T11 N,R15E,1219'FNL 8 416'FWL BP Exploration(Alaska) INN-= 4.11113-1-W: YAH LHEAQ- FhtifvQ_2 1 A SAFETY NOTES: 1VFLLMlC LE a TU' 70595 ACFLIATDR- AJCLI:7DN 8 hB.Cl.R1- _.._. 6QD ' U1.EL W- MA 13-1.91.CSC. - 64.• I Kor- 1300' *ix Angle 9!S' 1'11317' PRD 1C 55 RT[' I 1882 H4 I12GAMCO GAL,DSSSJ 1P,U-5.012 I Ik91zl,n-i? .. 0.567. 0=1234+' liri ImwmTVD= 87f4'SS 317C0NDtWR UC91 5K 11-10.1D-19125' -I 7119 1 —I 3510' I--4 Ur X 9 112'XO,ID-2.432' 001 13-.3dlr Coif:fiat,1-10 11Tm:.In-174I!' H 3800. f/ � SBS'- 06+ :1 yr cell Nn V:11.111-'I IVY'¢:Vwxu} i sir?'113G-INC,12.614 L-=37 BIC. 3810' " _ CAS UI-I IiAN1141-1 I 015711-4.in-3!7f A- IST' MD IVO DCV TYPO 'J LY'LATCI i PORT DAIL j '1 :9194 35193 :E, 11A113-7 1941," iii 1 2 D2 2 72176 24 M.I9 2 MY FIS: D 0.3,21r31 Minimum ID= 1.303' ice„' 11999' STA 11-DENY RFFiNfl PATCH 3-712'GS FISH NECK / —8385' 1-11-Nit til[XI PA-14101,1311-96433711:413A I, /' (09i16U12} II I 8809' H1112"CMS XNPID-2811- I tlirCFrLNIIH 0535, gam. 1 Ior�ct' l 7- ) 1nvLARH 11,IC-6.117D 13-16"CSG,4v,_-111.1A13 R!'JC BI311,U=ubal' c�JL ' L �11300' H4 114'TM P l&CD RISER VLOC 1440,ID-21111' I 3-1?Z'I1303-I14C 9950,L-JAI EU 644J No0, H ii ' 1'4 ! 7t1 r,ID-;997' r ... —I 11311' 1-0 11311" i1r 1149 Gyms'CM SEAL A55Y I IIT'X4-117.119 RS HOr'KR-I)-i 10 '�..� �I 11316' Ha' IHV MIL-091 LIULN;uIVN,ID-4.94' - 1132.1' I—I V2 X44 IF% AJ.ID-2.836' n1 I!-Lt�1,2 LIMBIC,.6311 Wt.ILI=6..114' H,.....1i I I 4 YDG I 3117 13iccic,ID 2W' Ilop DI 2-3'u'LN2 H 12000' I ` I iii 1 1 1 1 I 1 1 11 I i-9!-129 LW11 SY,1-16 1- /2" ea I!7=...a, H1255g. „, I l \, s. ti ,, FERFORKIAN StUAti 1 RLT LOG.L'ST ON 05022/89 \ t ANGLE Al IC7PItHl' -:8a11610' I ?? I-Ih1511-L(Y514SUPS&LNRELEIV N1 Note:liter 1a.Prochicton DB for 911 onrlt ter date Sift SI- i NIEIiV.AL OpniSrz LY11t FROM ECL1yEl4TCH•0&2287 4 V 1ID 11610 1251b 0 1572789 7311ram) 170U-13510 0 00597 i► I 13/518' IH21+6'sG'-tRA, ID,tan. I , / 12 3112”LNR,4.8k,L AD,. Y39 bpi,D-1.941' H 13550' 12.15-UFtT4l'tta_t 1 U H 141I3' I—� MTC PLV BY i Ca3F.1J NT DATE RC,BY CXJI&N 1 S I RTI.1011 E BAY LNT 0511141131 I(19C714111 COUR FTK1M r165T'1014 KIY51'.I:I1JLL 1'A IQ1103J191U5) I WI-11..116-71A 02V25197 1CTOSAETRACK{18.21AI 047132'06 1131 PJC 5 IKBI#11L7i(1r2J2ILUE) Ptrarrr6.'1961980 01723'02 O'VKAK i.O (:TIME. C6f26/12 PJC WAVING GLINKI:-IIONE AP*. 50 029 21914 01 021224102 C-C4KAK I CP6J HOLE DEPTH 07711712 PJC r)AVANG C;(JRIFCTK)I SFC 19,T11 N,R15E,1219'!TL&416 TlVL 06"i4IO3 r_7411LP 193 Li±VA IION CX*91 C11C7M1 00471&12 LEC2J14)nal SI TCOL.STRIG{MASH 2) 09113703 CM711-1_171CATIJM LC&FUTr ANG_( I I 131-1 E,iplorelloe{Ala9ks) 18-21 B Permit to Drill Application Page 9 by 0 To: Alaska Oil & Gas Conservation Commission From: Jorge Cubas, Operations Drilling Engineer Date: November 20, 2012 Re: Prudhoe Bay, Request for Permit to Drill 18-21B A permit to drill is requested to sidetrack well 18-21A. The primary target for the `" producing well will be the Ivishak Zone 1: Rig Parker 272 is expected to begin drilling this well on March 24, 2013. The sidetrack plan for the 18-21 B includes the following: - P&A 18-21A per Sundry Number: 312-369 ' - Whipstock exit out of the 7" liner - Drill 6" production hole - Run and cement a 4-1/2" 13Cr-80 liner - Perforate the well with drillpipe - Run 4-1/2" 13Cr-80 production tubing. Please note the following well summary as detailed on the next few pages. Sincerely, Jorge Cubas Operations Drilling Engineer BP Exploration (Alaska), Inc. 18-21B Permit to Drill Application Page 1 Planned Well Summary Horizontal Well 18-21B Well Sidetrack Target Ivishak Zn1 Type Producer Objective Estimated Start March 24m, 2013 Time to Complete: 31 Date: Northing Easting Offsets TRS Surface 4059.7703' FSL Location 5,960,659' 692,183' 4538.2342' FEL 11N, 15E, 19 • Northing Easting Offsets TRS Target 5,957,286 698,472 524' FSL 3632' FEL 11N, 15E, 20 Location 5,957,095 699,476 307' FSL 2634' FEL 11N, 15E, 20 5,956,920 700,461 106' FSL 1655' FEL 11N, 15E, 20 5,956,788 701,189 5234' FSL 931' FEL 11N, 15E, 29 Bottom Northing Easting Offsets TRS Location 5,956,679 701,782 5109' FSL / 341' FEL 11N, 15E, 29 Planned •10,775' MD / 8626' TVD Planned TD: 15,825.55' MD / 8,697' KOP: TVD Rig: Parker 272 GL/RT: 17.7' RTE: 46.95' Directional — Schlumberger 18-21B (P4) Proposal KOP: 10,775' MD Maximum Hole Angle: -99.69° in the 6" production section Close Approach Wells: 18-21 B fails major risk in the production section against well's: 11-14,11- 25A,18-12,18-12A,18-13A, 18-30A. Survey Program: MWD Standard + IFR+ Multi Station Nearest Property Line: 22,000' North Nearest Well within Pool: 1330' (11-28A) • Contacts Name Phone# E-mail Drilling Engineer Jorge Cubas 564-4971 Jorge.Cubas@,bp.com Geologist Doug Stoner 564-5652 Doug.StonerAbp.com Pad Engineer Javier Farinez 564-5043 Javier.FarinezAbp.com 18-21B Permit to Drill Application Page 2 Formation Markers 18-21B (Based on SOR) Estimated Minimum Most Likely Maximum Depth Fluid Formation Formation Top Pore Pressure Pore Pressure Pore Pressure Uncertainty Type (TVDss) (EMW ppg) (EMW ppg) (EMW ppg) (+/-TVD ft) (for sands) TSGR -8,148 7.1 7.2 7.8 behind pipe gas TSHU -8,192 7.1 7.2 7.8 behind pipe gas TSAD -8,254 7.1 7.2 7.8 behind pipe gas TCGL -8,375 7.1 7.2 7.8 behind pipe gas BCGL -8,445 7.1 7.2 7.8 behind pipe gas 23SB -8,510 7.1 7.2 7.8 behind pipe gas 22TS -8,539 7.1 7.2 7.8 behind pipe gas KOP -8,565 7.1 7.2 7.8 21TS -8,581 7.1 7.2 7.8 20' gas TZ1B -8,634 7.1 7.2 7.8 20' gas PGOC -8,685 7.1 7.2 7.8 20' TDF -8,700 7.1 7.2 7.8 20' oil BSAD -8,732 9.3 9.8 10.3 20' ✓ Casing/Tubing Program Hole Csg/ Wt/Ft Grade Conn Burst Collaps Length Top Bottom Size Tbg O.D. (psi) e (psi) MD/TVD MD/TVD VAM 6" 4 '/2" 12.6# 13Cr-80 TOP 8,430 7,500 5,250' 10,575'/8563 15825'/8696.5' VAM Tubing 4 '/z" 12.6# 13Cr 80 TOP 8,430 7,500 10,600' Surface 10,600'/8,052' Mud Program Whipstock Milling & Production Mud Properties: Water Based 6" hole section Depth Interval Density(ppg) PV YP LSRV API Fl pH MBT 10,775'-TD 8.6 6-12 22 -28 >20,000 6.0-8.0 9.0-9.5 < 4 Logging Program 6" Production: Drilling: GR/Res/Neu/Density Open Hole: None Cased Hole: None 18-21 B Permit to Drill Application Page 3 • Cement Program Casing Size: 4.5" 12.6#, 13Cr-80, VAM TOP Production Liner Basis: Lead: None Tail: 200' above the top of the liner Total Cement Spacer 25 bbls of Viscosified Spacer weighted to 11.5 ppg (Mud Push II) Volume: Lead none 53° _ 3 SK x 1.lG ��/sx - /I o jr -�a�- CG r7 ��� Tail 110 bbl includes 30%excess cement 15.8 ppg class G Temp BHST= 180° F Surface and Anti-Collision Issues Surface Shut-in Wells: There are no wells requiring surface shut-in in order to move onto the well. Close Approach Shut-in Wells: The 18-21 B well path fails major risk for wells: 11-14, 11-25A, 18-12, 18-12A, 18-13A and 18-30A. The listed wells • with exception to 18-30A are P&A and 18-30A will possibly be SI. Hydrogen Sulfide Standard Operating Procedures for H2S precautions should be followed at all times. DS18 wells are expected to • have H2S levels below 100 ppm. Recent H2S data from the pad is as follows: Date of Well Name H2S Level Reading Parent Well 18-21A 20 ppm 3/12/2011 #1 Closest SHL Well H2S Level 18-11A 16 ppm 3/25/2010 #2 Closest SHL Well H2S Level 18-12C 8 ppm 11/18/2011 #1 Closest BHL Well H2S Level 11-25A N/A N/A #2 Closest BHL Well H2S Level 11-28A 0 ppm 3/28/2008 #3 Closest BHL Well H2S Level 11-34 20 ppm 2/17/2011 Max.Recorded H2S on Pad/Facility 18-17 26 ppm 11/15/2011 Other Relevant H2S Data DS 18 is not an H2S pad.No wells>100 ppm H2S • Faults The planned 18-21B well plan does not intersect any mapped faults. In the "Fault Coordinates for Mapping" section Fault#1 is a small 10-15 ft. D to N fault clearly mapped at TSHU and Fault#2 is a western bounding fault. Because the planned 18-21B will not cross any mapped faults, the risk of lost • circulation is expected to be low. Disposal • No annular injection in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. Any metal cuttings will be sent to the North Slope Borough. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul all Class I waste to Pad 3 for disposal. 18-21B Permit to Drill Application Page 4 Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. The BOP test frequency for 18-21B will be 14 days during drilling phase, and 7 days during the decompletion phase. Production Interval Maximum anticipated BHP 3, 256 psi @ 8,632'TVDss (7.2 ppg EMW) _ Maximum surface pressure 2,386 psi (based upon pressure at TD -0.10 psi/ft gas gradient to surface) Kick tolerance Infinite with a 8.6 ppg mud and 8.823 ppg FIT/LOT Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 3,500 psi/250 psi Integrity Test—6" hole FIT after drilling 20' of new hole, target 9 ppg FIT Planned Completion Fluids 8.6 ppg Seawater/6.8 ppg Diesel (freeze protect) 18-21 B Permit to Drill Application Page 5 Drilling Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE I. Well Control The Ivishak in this fault block is expected to be 7.2 ppg EMW.' The interval will be drilled with a minimum of 8.6 ppg drilling fluid to provide adequate trip margin.. II. Lost Circulation No faults are expected to be crossed while drilling 18-21 B, the risk for lost circulation is expected to be low. III. Kick Tolerance/Integrity Testing The production section is infinite with a 8.823 ppg FIT. If planned LOT/FIT values are not achieved, do not drill ahead without risk assessment and proper authorization. Test Point Test Depth Kick EMW(lb/gal) Tolerance Test type 7" window 20-ft minimum from the 7" Infinite 9 window FIT IV. Hydrogen Sulfide Standard Operating Procedures for H2S should be followed at all times. DS 18 is not an H2S pad. No wells on DS 18 with H2S >100 ppm. . Date of Well Name H2S Level Reading Parent Well 18-21A 20 ppm 3/12/2011 #1 Closest SHL Well H2S Level 18-11A 16 ppm 3/25/2010 #2 Closest SHL Well H2S Level 18-12C 8 ppm 11/18/2011 #1 Closest BHL Well H2S Level 11-25A N/A N/A #2 Closest BHL Well H2S Level 11-28A 0 ppm 3/28/2008 #3 Closest BHL Well H2S Level 11-34 20 ppm 2/17/2011 Max.Recorded H2S on Pad/Facility 18-17 26 ppm 11/15/2011 Other Relevant H2S Data DS 18 is not an H2S pad.No wells>100 ppm H2S VII. Anti-Collision Issues The 18-21B well path fails major risk for wells: 11-14, 11-25A, 18-12, 18-12A, 18-13A and 18-30A CONSULT THE DS18 PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION 18-21 B Permit to Drill Application Page 6 18-21B Operational Summary Planned Pre-Riq Abandonment and Preparation Operations: 1. E Pull 3-1/2" KB Patch at 3870' MD. Drift to deviation with a 2.75" OD centralizer. 2. W Function test LDS tubing, replace if damaged. 3. E Set 3-1/2" CIBP - 11250' 4. E Jet cut tubing -10925' MD 5. F CMIT-TxIA to 3500 psi. 6. V Set BPV and test to 2000 psi (via IA) ✓ 7. 0 Remove S-Riser, Remove wellhouse, level pad-Complete Proposed Procedure: 1. MIRU Parker 272. 2. CMIT-TxIA to 3500 psi. 3. ND tree, Install blanking plug, NU BOP. 4. Test BOPE to 3,500psi, 250 psi low. Pull blanking plug. 5. RU lubricator and pull BPV. Circulate out freeze protection and displace to seawater. 6. Pull 3 1/2" Tubing Q� 7. PU 7" casing scraper. RIH to tubing stub - 10925' MD, ensure casing is clean. POOH. LD scraper assembly. z5oa 8. PU 4" DP, run a 7" EZSV for 29#liner. Set the EZSV at- 10'795' MD 9. PU 7" whipstock, bottom trip anchor and 6" window milling assembly (to include full gauge string mills). Orient and set the whipstock. 10. Mill a window in the 7" casing from approximately 10775'- 10788' MD' plus 20' of formation. Using 8.6 ppg seawater drilling fluid. 11. Perform a FIT/LOT. POOH for drilling BHA. frit PPS- EA"' 12. MU a 6" BHA with a PDC bit and DIR/GR/RES/NEU/DEN. RIH and drill ahead, per directional plan _ and rig site geologist, to TD. „rN-`5 13. CBU at TD. Back ream to shoe, logging as required by geologist. Open circ sub and circulate the 9 P well clean at the shoe and POOH. �Z,4NLS f 14. Run and a cement a 4-1/2", 12.6#, 13Cr-80, liner from TD to 200' above liner. Set the liner top packer and displace the well to seawater. 15. After cement reaches -1000 psi compressive strength, pressure test well to 3500 psi for 30 minutes and chart. 16. RIH with DPC perf guns. Perf intervals will be determined from LWD logs. Plan to perforate x overbalance. POOH, LD DP and pert guns. )(-0 u*r w� s4.447 17. Run the 4-1/2", 12.6#, 13Cr-80 completion tying into the 4-1/2" liner top. 18. Reverse circulate in corrosion inhibited brine. 19. Drop ball & rod and set the production packer and individually test the tubing to 3,500 psi and annulus to 3,50,0_psi for 30 minutes each. Shear GLM. 20. Set BPV. Test from below to 3500 psi. 21. ND BOPE. Install banking plug. NU and test the tree to 5,000 psi (tree will be changed with 4- 1/16") 22. Pull blanking plug. Freeze protect the well to 2,200' TVD. 23. RDMO. PV Post-Riq Work: 1. Pull BPV. 2. Pull ball and rod. 3. Re-install wellhouse and FL's. 4. Generic GLV's. 18-21B Permit to Drill Application Page 7 PARKER 272 BOP STACK RAM TYPE BOP: - DUTCH LOCK DOWN FLANGE SHAFFER LXT DOUBLE BOP 13 5/8"-5M 13 5/8"-5M STUDDED TOP 13 5/8"-5M FLANGED BOTTOM W/(2) 14" UL2 OPERATOR, UPPER CAVITY ° ° ANNULAR BOP: AND (2) 14" PSLK W/BSTR OPERATOR, fri M1 rf li rril SHAFFER LXT 13 5/8"-5M LOWER CAVITY 13-5/8" 5M STUDDED TOP 0 13-5/8" 5M FLANGED BOTTOM 0 1 1 DRILLING CROSS: I 1 13 5/8"-5M FLANGED TOP 11] I qqCT- I 1. _ 13 5/8"-5M FLANGED BOTTOM «�0 011 °,• 0 •E W (2) 3 1/8"-5M SIDE OUTLETS 1 II ° 0 ° IE E 3 II 1 •• °°°° i •• r u KILL LINE: SE ��� , ' � �� (2',-vgik i)�1\l\ 2-1/16" 5M FLEX /8" ��� i 2-1/16" 5M X 3-1/8" 5M D.S.A. 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BP Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-21-Slot 21 Project: Prudhoe Bay TVD Reference: 18-21B plan @ 64.65ft(Parker 273) Reference Site: PB DS 18 MD Reference: 18-21B plan @ 64.65ft(Parker 273) Site Error: 0.00ft North Reference: True Reference Well: 18-21 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan 18-21B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#4 18-21B Offset TVD Reference: Offset Datum Reference Plan#4 18-21B Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 10,609.65 to 15,826.43ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,777.78ft Error Surface: Elliptical Conic Survey Tool Program Date 9/19/2012 From To I (ft) (ft) Survey(Wellbore) Tool Name Description i 938.65 10,609.65 1 :MWD-Standard(18-21) MWD MWD-Standard 10,609.65 10,775.00 Plan#4 18-21 B(Plan 18-21 B) MWD MWD-Standard 10,775.00 11,150.00 Plan#4 18-21B(Plan 18-21B) INC+TREND Inclinometer+known azi trend 11,150.00 12,600.00 Plan#4 18-21B(Plan 18-21B) MWD MWD-Standard 12,600.00 15,825.55 Plan#4 18-21B(Plan 18-21B) MWD+IFR+MS MWD+IFR+Multi Station I 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 05 05-26-05-26A-05-26A 14,623.82 12,475.00 1,447.11 630.59 816.84 Pass-Major Risk 05-28-05-28B-05-28B 11,200.00 12,325.00 1,338.20 614.43 723.33 Pass-Major Risk PB DS 11 11-14-11-14-11-14 14,474.99 12,625.00 221.36 1,912.91 -1,690.48 FAIL-Major Risk 11-25-11-25-11-25 15,262.96 12,075.00 1,061.06 719.57 345.18 Pass-Major Risk 11-25A-11-25A-11-25A 15,178.21 12,401.00 597.56 709.62 -105.25 FAIL-Major Risk 11-28-11-28-11-28 15,257.75 11,925.00 853.54 723.97 195.01 Pass-Major Risk 11-28-11-28A-11-28A 15,321.15 12,075.00 1,132.76 736.92 442.69 Pass-Major Risk 11-28-11-28A-11-28A Wp 06A 15,293.52 12,100.00 1,133.41 721.06 458.41 Pass-Major Risk 11-34-11-34-11-34 15,198.43 12,832.00 1,688.21 881.98 806.85 Pass-Major Risk PB DS 18 18-12-18-12-18-12 12,766.78 12,390.00 718.82 815.48 -91.68 FAIL-Major Risk 18-12-18-12A-18-12A 14,367.34 14,046.00 366.99 866.73 -499.69 FAIL-Major Risk 18-12-18-12B-18-12B 12,470.14 11,975.00 849.70 765.64 85.99 Pass-Major Risk 18-12-18-12C-18-12C Out of range 18-12-18-12C Contingency-18-12C Contingenc' Out of range 18-13-18-13A-18-13A 11,567.30 12,950.00 97.98 743.65 -581.86 FAIL-Major Risk 18-20-18-20-18-20 Out of range 18-21-18-21-18-21 11,203.61 11,200.00 60.35 277.92 -209.17 FAIL-Major Risk 18-21A-18-21A-18-21A 11,203.61 11,200.00 60.35 807.17 -728.80 FAIL-Major Risk 18-30-18-30-18-30 11,200.00 11,625.00 805.72 812.70 -0.59 FAIL-Major Risk 18-30-18-30A-18-30A 11,317.72 11,825.00 752.35 803.21 -44.02 FAIL-Major Risk 18-30-18-30APB1 -18-30APB1 11,317.72 11,825.00 752.35 803.21 -44.02 FAIL-Major Risk 9/19/2012 3:27:47PM Page 2 of 3 COMPASS 2003.16 Build 73 BP Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 18-21 -Slot 21 Project: Prudhoe Bay TVD Reference: 18-21B plan @ 64.65ft(Parker 273) Reference Site: PB DS 18 MD Reference: 18-21B plan @ 64.65ft(Parker 273) Site Error: 0.00ft North Reference: True Reference Well: 18-21 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan 18-21B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#4 18-21B Offset TVD Reference: Offset Datum Reference Plan#4 18-21B Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 10,609.65 to 15,826.43ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,777.78ft Error Surface: Elliptical Conic Survey Tool Program Date 9/19/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 938.65 10,609.65 1 :MWD-Standard(18-21) MWD MWD-Standard 10,609.65 10,775.00 Plan#4 18-21B(Plan 18-21B) MWD MWD-Standard 10,775.00 11,150.00 Plan#4 18-21 B(Plan 18-21 B) INC+TREND Inclinometer+known azi trend 11,150.00 12,600.00 Plan#4 18-21 B(Plan 18-21 B) MWD MWD-Standard 12,600.00 15,825.55 Plan#4 18-21B(Plan 18-21B) MWD+IFR+MS MWD+IFR+Multi Station 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 05 05-26-05-26A-05-26A 14,623.82 12,475.00 1,447.11 630.59 816.84 Pass-Major Risk 05-28-05-28B-05-28B 11,200.00 12,325.00 1,338.20 614.43 723.33 Pass-Major Risk PBDS11 11-14-11-14-11-14 14,415.92 12,750.00 191.53 53.75 161.87 Pass-Minor 1/200 11-25-11-25-11-25 15,262.96 12,075.00 1,061.06 719.57 345.18 Pass-Major Risk 11-25A-11-25A-11-25A 15,178.21 12,401.00 597.56 54.07 575.15 Pass-Minor 1/200 11-28-11-28-11-28 15,257.75 11,925.00 853.54 723.97 195.01 Pass-Major Risk 11-28-11-28A-11-28A 15,321.15 12,075.00 1,132.76 736.92 442.69 Pass-Major Risk 11-28-11-28A-11-28A Wp 06A 15,293.52 12,100.00 1,133.41 721.06 458.41 Pass-Major Risk 11-34-11-34-11-34 15,198.43 12,832.00 1,688.21 881.98 806.85 Pass-Major Risk PB DS 18 18-12-18-12-18-12 12,766.78 12,390.00 718.82 46.24 718.37 Pass-Minor 1/200 18-12-18-12A-18-12A 14,367.34 14,046.00 366.99 35.92 361.47 Pass-Minor 1/200 18-12-18-12B-18-12B 12,470.14 11,975.00 849.70 765.64 85.99 Pass-Major Risk 18-12-18-12C-18-12C Out of range 18-12-18-12C Contingency-18-12C Contingenc' Out of range 18-13-18-13A-18-13A 11,707.30 13,102.00 35.82 44.74 31.85 Pass-Minor 1/200 18-20-18-20-18-20 Out of range 18-21-18-21-18-21 10,764.65 10,750.00 0.00 0.99 -0.99 FAIL-NOERRORS 18-21A-18-21A-18-21A 10,764.65 10,750.00 0.00 0.89 -0.87 FAIL-NOERRORS 18-30-18-30-18-30 10,839.75 11,100.00 748.31 42.86 747.87 Pass-Minor 1/200 18-30-18-30A-18-30A 10,839.75 11,100.00 748.31 42.77 747.87 Pass-Minor 1/200 18-30-18-30APB1 -18-30APB1 10,839.75 11,100.00 748.31 42.77 747.87 Pass-Minor 1/200 9/19/2012 3:32:46PM Page 2 of 3 COMPASS 2003.16 Build 73 , • Project: Prudhoe Bay Site: PB DS 18 From Colour To MD Well: 18-21 Wellbore: Plan 18-21B Design: Plan #4 18-21 B 10610 10775 10775 11500 11500 12000 12000 12500 From sidetrack pt to TD Scan interval 25 ft 12500 13000 Scale 1 : 50 13000 14000 1:230 minor risk: 11-14, 11-25A, 18-12/A, 14000 15000 18-13A, 18-30/A/APB1 0 15000 15830 -�gdil!rc1a�_ ' 330 4�� `C"ii_ lAVI .,.. 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TRANSMITTAL LETTER CHECKLIST WELL NAME ?2 u 1 - 213 PTD# Q0.180 Development Service Exploratory Stratigraphic Test Non-Conventional Well / FIELD: ? /bF Z POOL: ?GZu.UilaF ZAy Oi t Check Box for Appropriate Letter/Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (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. Rev:9/09/2011 To u) 0 0 O p- O a `o m a) C Q co Q O o N M 00 c ate) 0 -o C @ N@ O Q > -c L M w (n "-' op ❑ .0 0 O O 3 N E 0 ❑ o -@O 2 M @ -0 Q) dn. 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