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Home My WebLink About212-0427. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU C-27C Mill CIBPs Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-042 50-029-20843-03-00 13534 Surface Intermediate Liner Liner Liner 9018 2701 10428 301 945 3503 13496 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" 2-7/8" x 2-3/8" 9019 38 - 2739 35 - 10463 10212 - 10513 10186 - 11131 10030 - 13533 38 - 2684 35 - 8420 8222 - 8460 8202 - 8953 8081 - 9018 13405, 13411, 13492 2670 4760 5410 10530 11160 None 5380 6870 7240 10160 10570 11266 - 13490 5-1/2" 17# x 4-1/2" 12.6# L80 33 - 10513 9022 - 9019 Conductor 72 20" 38 - 110 38 - 110 1490 470 4-1/2" TIW HBBP Packer 10147 8171 Torin Roschinger Operations Manager Leif Knatterud leif.knatterud@hilcorp.com 9075644667 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 0028310, 0028305 33 - 8460 N/A N/A 311 796 28186 28922 72 358 950 1500 1020 500 N/A 13b. Pools active after work:Prudhoe Oil No SSSV Installed 10147, 8171 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 2:50 pm, Jun 24, 2025 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2025.06.24 13:50:32 - 08'00' Torin Roschinger (4662) RBDMS JSB 062725 JJL 6/30/25 ACTIVITY DATE SUMMARY 6/13/2025 CTU#1 1.5" CT. Job Scope: Mill CIBP's. MIRU CTU. Function Test BOP's. Pressure Test PCE 300psi Low / 4400psi High. Test DHCV's. RIH w/ YJ 1.69" Milling BHA with 1.69" Venturi & 1.76" Burnshoe. Dry Tag CIBP at 11359' ctm. Attempt to mill but unable to make headway. Pooh to inspect tools. Discover burst disc in circ-sub was blown. Re-run 1.69" Venturi & 1.76" Burnshoe Milling BHA. Dry Tag CIBP at 11363'. Mill on upper CIBP with choke closed. Plug let loose after ~ 1 minute. Chase plug down to top of lower CIBP at 11880' ctm. Work burnshoe on plug. Acted like upper plug was spinning on the lower plug. Pooh to inspect BHA. Recover ~ 1/4 cup of plug debris & formation sand, no core. Make up & RIH w/ 1.75" Junk Mill milling BHA. ***In Progress*** 6/14/2025 CTU#1 1.5" CT. Job Scope: Mill CIBP's. Continue RIH w/ 1.75" Junk Mill milling BHA. Dry Tag lower CIBP at 11880'. Mill CIBP and push to 13405' CTMD before encountering lock up and heavy overpulls. Work pipe multiple times while POOH from the liner. Freeze Protect Tbg with diesel. Rig down CTU ***Job Complete / Slickline up next to set DreamCatcher*** 6/15/2025 ***WELL S/I ON ARRIVAL*** BRUSH NIPPLE @ 2217' MD SET 5-1/2 DREAM CATCHER IN NIPPLE @ 2217' MD (HRQ w/nogo installed -42" oal) ***WELL S/I ON DEPARTURE*** Daily Report of Well Operations PBU C-27C CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:PB Wells Integrity To:Regg, James B (OGC) Cc:Wallace, Chris D (OGC); Torin Roschinger; Oliver Sternicki; PB Wells Integrity Subject:OPERABLE: Producer C-27C (PTD #2120420) TIFL passed post GLV replacement Date:Sunday, May 26, 2024 7:35:03 PM Mr. Regg, Slickline completed a GLV change out on 5/23/24 and a subsequent cold TIFL on 5/25/24 passed. The passing TIFL indicates two competent well barriers. The well is now classified as OPERABLE. Please respond with any questions. Oliver Sternicki Hilcorp Alaska, Hilcorp North Slope LLC Well Integrity Supervisor Office: (907) 564 4891 Cell: (907) 350 0759 Oliver.Sternicki@hilcorp.com From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Wednesday, May 22, 2024 11:11 AM To: jim.regg <jim.regg@alaska.gov> Cc: chris.wallace@alaska.gov; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: UNDER EVALUATION: Producer C-27C (PTD #2120420) IA over MOASP Mr. Regg, Producer C-27C (PTD #2120420) was reported to have IA casing pressure over MOASP on 05/22/24 after the well was shut-in. The reported pressure was 2400 psi. The well will now be classified as UNDER EVALUATION and is on the 28-day clock for diagnostics and repair. Plan forward: 1.Slickline: Replace GLVs 2.DHD: TIFL 3.Well Integrity: Additional diagnostics as needed. 3%8&& 37' passing TIFL indicates two competent well barriers Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. 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 C-27C Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-042 50-029-20843-03-00 13534 Surface Intermediate Liner Liner Liner 9018 2701 10428 301 945 3503 11345 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" 2-7/8" x 2-3/8" 9041 38 - 2739 35 - 10463 10212 - 10513 10186 - 11131 10030 - 13533 38 - 2684 35 - 8420 8222 - 8460 8202 - 8953 8081 - 9018 13411, 13492 2670 4760 5410 10530 11160 11345, 11850 5380 6870 7240 10160 10570 11266 - 13490 5-1/2" 17# x 4-1/2" 12.6# L80 33 - 10513 9022 - 9019 Conductor 72 20" 38 - 110 38 - 110 1490 470 4-1/2" TIW HBBP Packer 10147 8171 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY, Prudhoe Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028310, 0028305 33 - 8460 N/A N/A 147 574 5928 20505 30 82 1400 1400 310 820 N/A 13b. Pools active after work:Prudhoe Oil No SSSV Installed 10147, 8171 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 11:42 am, May 08, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2024.05.08 11:24:19 -08'00' Torin Roschinger (4662) RBDMS JSB 051524 DSR-5/8/24WCB 7-16-2024 ACTIVITY DATE SUMMARY 5/5/2024 T/I/O= 1650/350/50 Temp = S/I (Assist E-Line with Pump Down) Pumped 58 bbls Crude down TBG to assist with Pump Down. FWHPS=1150/350/50 Alaska E-line in control of well upon TFS departure 5/5/2024 *** WELL SI ON ARRIVAL*** (ADPERF) MIRU AK E-LINE PT 250 LOW AND 3000 HIGH WIH WITH CABLEHEAD/WB/WB/GUN GAMMA/BRT/FIRING HEAD/HSC LOG CORRELATED TO HALLIBURTON COIL FLAG LOG DATED 7-JAN-2023. 1.56" 11' 6 SPF 60 DEG GUN. EH:0.19" PEN: 13.09" CCL-TOP SHOT: 13.5' CCL STOP DEPTH: 11252.5' INTERVAL: 11266-11277 RDMO AK E-LINE ***WELL SI ON DEPARTURE, JOB COMPLETED*** Daily Report of Well Operations PBU C-27C INTERVAL: 11266-11277 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 C-27C Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-042 50-029-20843-03-00 13534 Surface Intermediate Liner Liner Liner 9018 2701 10428 301 945 3503 11345 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" 2-7/8" x 2-3/8" 9041 38 - 2739 35 - 10463 10212 - 10513 10186 - 11131 10030 - 13533 38 - 2684 35 - 8420 8222 - 8460 8202 - 8953 8081 - 9018 13411, 13492 2670 4760 5410 10530 11160 11345, 11850 5380 6870 7240 10160 10570 11289 - 13490 5-1/2" 17# x 4-1/2" 12.6# L80 33 - 10513 9030 - 9019 Conductor 72 20" 38 - 110 38 - 110 1490 470 4-1/2" TIW HBBP Packer 10147, 8171 10147 8171 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY, Prudhoe Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028310, 0028305 33 - 8460 N/A N/A 240 80 30949 6502 48 0 950 975 1060 500 N/A 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 By Grace Christianson at 3:01 pm, May 03, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2024.05.03 12:13:45 -08'00' Torin Roschinger (4662) WCB 7-29-2024 DSR-5/6/24 RBDMS JSB 051524 ACTIVITY DATE SUMMARY 4/28/2024 *** WELL S/I ON ARRIVAL*** OBJECTIVE: SET NS 2.375'' PLUG AND PERFORATE INTERVAL W/1.562" HUNTING TITAN RTG 6 spf 60 DEG PHASE MIRU YELLOW JACKET E-LINE. PT PCE 300 PSI LOW./3000 PSI HIGH RUN#1 W/CH1.435'' 1' /WB 1.69" X 7'/1.69'' GUN GAMMA/31' OF 1.56'' HUNTING TITAN RTG 6 spf 60 DEG phase PERFORATE INTERVALS 11289' 11320' CCL OFFSET TO TOP SHOT 8' CCL STOP DEPTH 11281' GAMMA RAY CCL CORRELATED TO HES COIL FLAG LOG DATED 7-JAN-2023 RUN#2 W/ CH 1.435" 1' / X 2 WB 1.69'' /GUN GAMMA 1.687"/MSST SETTING TOOL/NS 1.71'' CIBP/ TUBING PRESSURED UP WHILE PUMPING DOWN, DID NOT MAKE IT TO TARGET DEPTH AFTER MUTIPLE ATTEMPS, DECISION MADE PULL OUT OF HOLE AND INSPECT THE CIBP PLUG TOWN DECISION TO FLOW THE WELL OVERNIGHT. LAID DOWN FOR THE NIGHT *** JOB CONTINUE ON 4/29/2024*** 4/28/2024 T/I/O=2200/950/0 (Assist E-line with pump down) Pumped 142 bbls of crude down the TBG at varying rates from 1BPM-5BPM as needed to pump down ELine tools. *Job postponed due to well locking up and not being able to pump down Eline plug*. PO left in control of well to flow overnight. 4/29/2024 ***JOB CONTINUE FROM 4/28/2024*** OBJECTIVE: PUMP DOWN AND SET 1.71" CIBP PLUG PASSED PERFORATIONS PT PCE 300 PSI LOW./3000 PSI HIGH RIH W/CH/1.435 1.687''/ X2 WB 1.687"/ GUN GAMMA/ 1.562" CENT/ 1.687 MSST 1.71" CIBP, PULL ON DEPTH AND SET PLUG 11345' MD , CCL TO MID ELEMENT 15.4' ' CCL STOP DEPTH 11329.6, ' GOOD INDICATION PLUG SET AND POOH GR-CCL CORRELATE TO HES COIL FLAG LOG DATED 7-JAN-2023. JOB COMPLETE ***WELL S/I ON DEPARTURE*** 4/29/2024 T/I/O=2500/1100/150 Temp=S/I (Assist Eline with pump down) pumped 20 bbls Crude down TBG for small load maintained 2400 psi while increasing rate to 4 BPM, took 11 bbls to reach target depth for plug. T/I/O=2400/1000/100 for final WHP, well left in E-lines control Daily Report of Well Operations PBU C-27C PERFORATE INTERVALS 11289' 11320' Adperfs and CIBP are correctly shown on new WBS, below. -WCB PULL ON DEPTH AND SET PLUG 11345' MD 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 C-27C Mill CIBP, Extended Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-042 50-029-20843-03-00 13534 Surface Intermediate Liner Liner Liner 9018 2701 10428 301 945 3503 11850 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" 2-7/8" x 2-3/8" 9019 38 - 2739 35 - 10463 10212 - 10513 10186 - 11131 10030 - 13533 38 - 2684 35 - 8420 8222 - 8460 8202 - 8953 8081 - 9018 13411, 13492 2670 4760 5410 10530 11160 11850 5380 6870 7240 10160 10570 11535 - 13490 5-1/2" 17# x 4-1/2" 12.6# L80 33 - 10513 9027 - 9019 Conductor 72 20" 38 - 110 38 - 110 1490 470 4-1/2" TIW HBBP Packer 10147, 8171 10147 8171 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY, Prudhoe Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028310, 0028305 33 - 8460 N/A N/A 223 1602 27788 25377 48 342 500 1050 1000 866 323-486 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 By Grace Christianson at 11:50 am, Oct 26, 2023 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2023.10.26 11:27:43 -08'00' Torin Roschinger (4662) WCB 4-12-2024 DSR-11/2/23 ACTIVITY DATE SUMMARY 10/19/2023 LRS CTU #1 - 1.50" Blue Coil Job Objective: Mill CIBP, Set CIBP, Ext. AddPerf MIRU CTU. Make up Milling BHA with 1.77" junk mill. Load well with seawater. Mill CIBP at 12165' MD. Push to 13,411'. Dry drift through liner, pump down backside to sweep liner. POOH FP CT and cap well ...Continue to WSR on 10/20/23... 10/20/2023 LRS CTU #1 - 1.50" Blue Coil Job Objective: Mill CIBP, Set CIBP, Ext. AddPerf POOH w/milling BHA. L/D tools, M/U HES memory log BHA. RIH Log 12,350, Flag at ~11,700, Top of log @ 9,900. POOH pumping down BS to keep hole full. Confirm good data and a +8.5' correction. Make up 2-3/8" CIBP setting BHA and RIH. Tie-in at the flag but no indication of landing ball. Pump second 3/8" ball but unable to function tools. POOH maintaining hole fill. Find both balls caught in DH check valves. Reconfigure BHA and replace plug. RIH with 2-3/8" setting BHA #2. RIH correct depth at flag, pump 3/8" ball, set plug at 11850. POOH maintaining hole fill. Tag up, no flow check ...Continue to WSR on 10/21/23... 10/21/2023 LRS CTU #1 - 1.50" Blue Coil Job Objective: Mill CIBP, Set CIBP, Ext. AddPerf Finish no flow check, L/D YJ CIBP setting tool. Maintain hole fill, deploy 115' of 1.56" millenium perf guns, 6 spf. RIH and Tie-in to top of CIBP. Perforate 11535-11650. POOH and maintin hole fill. Lay down perf guns and FP tubing. RDMO CTU. ***Job Complete*** Daily Report of Well Operations PBU C-27C y Perforate 11535-11650. Millg CIBP at 12165' MD. Push to 13,411'. RIH Log 12,350, Flag atgygg ~11,700, Top of log @ 9,900. POOH pumping down BS to keep hole full. Confirmg@g good data and a +8.5' correction. Make up 2-3/8" CIBP setting BHA and RIH. Tie-in atgg the flag but no indication of landing ball. Pump second 3/8" ball but unable to function gg tools. POOH maintaining hole fill. Find both balls caught in DH check valves.g g Reconfigure BHA and replace plug. RIH with 2-3/8" setting BHA #2. RIH correct gg depth at flag, pump 3/8" ball, set plug at 11850. 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 C-27C Extended Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-042 50-029-20843-03-00 341J ADL 0028310 13534 Surface Intermediate Liner Liner Liner 9018 2701 10428 301 945 3503 12165 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" 2-7/8" x 2-3/8" 9022 38 - 2739 35 - 10463 10212 - 10513 10186 - 11131 10030 - 13533 2425 38 - 2684 35 - 8420 8222 - 8460 8202 - 8953 8081 - 9018 13492 2670 4760 5410 10530 11160 12165 5380 6870 7240 10160 10570 11915 - 13490 5-1/2" 17# x 4-1/2" 12.6# L80 33 - 105139022 - 9019 Conductor 72 20" 38 - 110 38 - 110 1490 470 4-1/2" TIW HBBP Packer No SSSV Installed 10147, 8171 No SSSV Installed Date: Torin Roschinger Operations Engineer Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY 10/1/2023 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 By Grace Christianson at 2:38 pm, Aug 28, 2023 323-486 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2023.08.28 06:03:15 -08'00' Torin Roschinger (4662) DSR-8/28/23MDG 9/13/2023 , ADL0028305 10-404 MGR30AUG23*&: 09/13/23 Brett W. Huber, Sr. Digitally signed by Brett W. Huber, Sr. Date: 2023.09.13 19:12:59 -05'00' RBDMS JSB 091423 Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Well Name:C-27C API Number:50-029-20843-03 Current Status:Operable producer – High GOR Pad:C-Pad Estimated Start Date:10/1/2023 Rig:CT Reg. Approval Req’d?10-403 & 10-404 Date Reg. Approval Rec’vd: Regulatory Contact:Abbie Barker Permit to Drill Number:212-042 First Call Engineer:Michael Hibbert Contact:907-903-5990 Current Bottom Hole Pressure:3250 psi Estimated MPSP:2425 psi (BHP - .1psi/ft gas gradient + safety factor) Max Dev:98 deg At 11,461’ MD Min ID:1.78” Wiper plug deployment sleave at 10,150’ MD Tie In Log:C-27C Coil flag 7 Jan 2023 (see annotated Log attached) Brief Well Summary: C-27C was a CTD sidetrack that was drilled in June 2012. Stage 2 perfs were added in April 2018. Stage 3 perfs were added in January of 2023. Well has become high GOR and is not cycling well. This work will setup well for stage 4 perfs. Objective: MIRU 1.5” CTU. Mill CIBP at 12,165’ and push to bottom. Set a CIBP at 11,850’. Add 115’ of Z2A perforations from 11,535’-11,650’ with extended gun deployment. Procedure: 1.5” CTU – Mill CIBP and set CIBP: 1. MU 1-11/16” motor with ~1.75” mill. 2. RIH and mill NS CIBP at 12,165’. Push downhole to PBTD. POOH. 3. MU GR/CCL with drift OD for CIBP (1.71”) and perforation guns (1.76”). 4. Flag pipe for plug set (11,850’) and perforating depth (11,535-11,650’). POOH. 5. MU NS 238-171 Bridge Plug or similar. RIH and set at 11,850’. POOH. Coil – Extended Perforating 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. The well will be killed and monitored before making up the initial perf guns. This is generally done during the drift/logging run. This will provide guidance as to whether the well will be killed by bullheading or circulating bottoms up throughout the job. If pressure is seen immediately after perforating, it will either be killed by bullheading while POOH or circulating bottoms up through the same port that opened to shear the firing head. 1. 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. 2. Bullhead ~181 bbls 1% KCL/SW down tubing. Max tubing pressure 2500 psi. (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 = 181 bbls b. 5-1/2” Tubing – 2,511’ X .0232 bpf = 58 bbls c. 4-1/2” Tubing – 7,519’ X .0152 bpf = 115 bbls d. 2-3/8” Liner – 1,885’ X 0.0039 bpf = 8 bbl Add 115’ of Z2A perforations from 11,535’-11,650’ with extended gun deployment. Mill Plug & Set CIBP & Ext AdPerf Well: C-27C 3. Use flag from CIBP drift if possible. If needed MU and RIH with GR/CCL and ~1.76” JSN. a. Flag pipe as appropriate per WSS for adperf b. POOH and freeze protect tubing as needed. c. Confirm good log data. 4. At surface, prepare for deployment of TCP guns. 5. 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 hole fill taking returns to tank until lubricator connection is re-established. Fluids man-watch must be performed while deploying perf guns to ensure the well remains killed and there is no excess flow. 6.*Perform drill by picking up safety joint with 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. a.At the beginning of each job, the crossover/safety joint must be physically MU to the perf guns one time to confirm the threads are compatible. 7.Break lubricator connection at QTS and begin makeup of TCP guns per schedule below. Constantly monitor fluid rates pumped in and fluid returns out of the well. Fluids man-watch must be performed while deploying perf guns to ensure the well remains killed and there is no excess flow. Perf Interval Perf Length Gun Length Weight of Gun (lbs) Run #1 11,535’ – 11,650’115’115’460 lbs (4 ppf) Use 1.56” Millenium charges or similar 8. RIH with perf gun and tie-in to coil flag correlation. Pickup and perforate interval per Perf Schedule above. a. Note any tubing pressure change in WSR. 9. 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. 10. Pump pipe displacement while POOH. Stop at surface to reconfirm well is dead. Kill well if necessary. 11. Review well control steps and Standing Orders with crew prior to breaking lubricator connection and commencing breakdown of TCP gun string. 12. Ensure safety joint and TIW valve assembly are on-hand before breaking off lubricator to LD gun BHA. 13. RDMO CTU. 14. Turn well over to Operations POP. Attachments: x Current Wellbore Schematic x Proposed Wellbore Schematic x Tie in Log x CTU BOP Schematic x Standing Orders x Equipment Layout x Sundry Change Form Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Current Schematic: Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Proposed Schematic: Milled CIBP Set CIBP @ 11,850’C Perforate 11,535’ – 11,650’ Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Tie-in Log O:\Alaska\Hilcorp North Slope\S-Drive-Benson\RES\Wells\PBU\C\C-27C\Logs\Pequin\PBU_C- 27C_COILFLAG_07JAN23.pdf Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Set CIBP @ 11,850’ Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Perforate from 11,535’-11,650’ Mill Plug & Set CIBP & Ext AdPerf Well: C-27C BOP Schematic Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Mill Plug & Set CIBP & Ext AdPerf Well: C-27C Mill Plug & Set CIBP & Ext AdPerf Well: C-27C 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 Approved 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 C-27C Mill CIBP, Extended Perf w CTU Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-042 50-029-20843-03-00 13534 Surface Intermediate Liner Liner Liner 9018 2701 10428 301 945 3503 12165 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" 2-7/8" x 2-3/8" 9022 38 - 2739 35 - 10463 10212 - 10513 10186 - 11131 10030 - 13533 38 - 2684 35 - 8420 8222 - 8460 8202 - 8953 8081 - 9018 13492 2670 4760 5410 10530 11160 12165 5380 6870 7240 10160 10570 11915 - 13490 5-1/2" 17# x 4-1/2" 12.6# L80 33 - 10513 9022 - 9019 Conductor 72 20" 38 - 110 38 - 110 1490 470 4-1/2" TIW HBBP Packer 10147, 8171 10147 8171 Stan Golis Sr. Area Operations Manager Claire Mayfield Claire.Mayfield@hilcorp.com 907-564-4375 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 0028310, 0028305 33 - 8460 N/A N/A 228 826 27152 21067 174 864 1350 1650 840 823 322-635 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 rect to the best of my kn January 12, 2023 By Samantha Carlisle at 3:36 pm, Jan 12, 2023 212-042 MDG 9/13/2023 Sundry Number 322-635 DSR-1/12/23 RBDMS JSB 011323 il d biCoiled Tubing Ops Perforate Plug Perforations PRUDHOE BAY, Prudhoe Oil WCB 10-31-2023 Mill CIBP, Extended Perf w CTU PBU C-27C ACTIVITY DATE SUMMARY 1/6/2023 LRS CTU 2 1.5" Blue coil, Job Objective: Mill CIBP, Drift/log, Set CIBP, & Ext. Adperf Unit travels to C-27C. Standby on well support due to high winds. ***Job Continued on 1/7/2023*** 1/7/2023 LRS CTU 2 1.5" Blue coil, Job Objective: Mill CIBP, Drift/log, Set CIBP, & Ext. Adperf MIRU CTU. Make up YJ 1.69" milling BHA with 1.74". Dry tag at 12635 'ctm. Mill and push plug to PBTD at 13492'. Pull above the Liner top. Dry drift to 12670'. POH pumping pipe voidage. Make up and RIH with HES memory GR/CCL and LRS 1.75" drift. ***Job Continued on 1/8/2023*** 1/8/2023 LRS CTU 2 1.5" Blue coil, Job Objective: Mill CIBP, Drift/log, Set CIBP, & Ext. Adperf Continue RIH with HES memory GR/CCL and LRS 1.75" drift. Log from 12630 to 9800. Pipe flagged at 12050. Pump pipe displacement and POOH. Log shows a - 11.5' correction, making corrected EOP = 12028.1'. Make up and RIH with NS 2.375" CIBP. Tie in at flag. Set CIBP at 12165'. POOH. Deploy Perf gun BHA with 190' of 1.56"Geo Razor perf guns, 6 spf (165' loaded). Tagged CIBP for depth correction and perforated: 11915-11995 & 12020-12105. Pumped pipe displacement + coming out of hole. Flow checked well - zero losses. Retrieve perf guns. Make up and RIH with BDJSN BHA to freeze protect well with diesel. ***Job continued on 1/9/23*** 1/9/2023 LRS CTU 2 1.5" Blue coil, Job Objective: Mill CIBP, Drift/log, Set CIBP, & Ext. Adperf Continue RIH with BDJSN BHA to freeze protect well. Well freeze protected with 25bbl of 60/40 and 33 bbl of diesel. Pad operator notified of well status. RDMO. ***Job Complete*** Daily Report of Well Operations PBU C-27C g Make up and RIH with NS 2.375" g CIBP. Tie in at flag. Set CIBP at 12165'. POOH. Make up YJ 1.69" milling BHA with 1.74". Dry tag at 12635 'ctm. Mill and push plug to PBTD at 13492'. g Well freeze protected with 25bbl of 60/40 and 33 bbl of diesel. Pad operator notified of well status. RDMO. ***Job Complete*** The plug was pushed to bottom. - Shown in WBS. -WCB New perfs shown on new WBS, below. -WCB j g RIH with HES memory GR/CCL and LRS 1.75" drift. Log from 12630 to 9800. Pipe flagged at 12050. Job Objective: Mill CIBP, Drift/log, Set CIBP, & Ext. Adperfjg New CIBP shown on new WBS, below. -WCB yg Tagged CIBP for depth correction and g( perforated: 11915-11995 & 12020-12105. 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ĞŶŽƵŐŚƚŽƉƌŽǀŝĚĞǀĂůƵĞ͘ KďũĞĐƚŝǀĞ͗ dŚĞŽďũĞĐƚŝǀĞŽĨƚŚĞƉƌŽŐƌĂŵŝƐƚŽŵĂŬĞƚŚĞǁĞůů ŵŽƌĞ ĐŽŵƉĞƚŝƚŝǀĞďǇ ŝƐŽůĂƚŝŶŐƚŚĞĞǆŝƐƚŝŶŐƉĞƌĨŽƌĂƚŝŽŶƐĂŶĚ ƐŚŽŽƚŝŶŐĂĚĚŝƚŝŽŶĂů ƉĞƌĨŽƌĂƚŝŽŶƐ͘ ^ůŝĐŬůŝŶĞ ;dŚŝƐƐƚĞƉŝƐĂƚƚŚĞt^>͛ƐĚŝƐĐƌĞƚŝŽŶ͘Ϳ ϭ͘ D/Zh^ůŝĐŬůŝŶĞhŶŝƚĂŶĚƐƉŽƚĂŶĐŝůůĂƌǇĞƋƵŝƉŵĞŶƚ͘ Ϯ͘ Z/, tŝƚŚƵŵŵǇŐƵŶĚƌŝĨƚ ĂŶĚƐĂŵƉůĞďĂŝůĞƌ ƚŽĚĞǀŝĂƚŝŽŶĂŶĚĐŽůůĞĐƚƐĂŵƉůĞŝĨƉŽƐƐŝďůĞ͘/ĨƐĂŵƉůĞŝƐ ĐŽůůĞĐƚĞĚ͕ ƉůĞĂƐĞŶŽƚĞŝŶt'Z^ĂŶĚŶŽƚŝĨǇK͘ ^ƵŶĚƌǇ WƌŽĐĞĚƵƌĞ ;ƉƉƌŽǀĂůZĞƋƵŝƌĞĚƚŽWƌŽĐĞĞĚͿ͗ EŽƚĞ͗ dŚĞǁĞůůǁŝůů ďĞŬŝůůĞĚ ĂŶĚŵŽŶŝƚŽƌĞĚďĞĨŽƌĞŵĂŬŝŶŐƵƉƚŚĞŝŶŝƚŝĂůƉĞƌĨƐŐƵŶƐ͘dŚŝƐŝƐ ŐĞŶĞƌĂůůǇ ĚŽŶĞ ĚƵƌŝŶŐ ƚŚĞĚƌŝĨƚͬůŽŐŐŝŶŐƌƵŶ͘ dŚŝƐǁŝůůƉƌŽǀŝĚĞŐƵŝĚĂŶĐĞĂƐƚŽǁŚĞƚŚĞƌƚŚĞǁĞůůǁŝůůďĞŬŝůůĞĚďǇďƵůůŚĞĂĚŝŶŐŽƌ ĐŝƌĐƵůĂƚŝŶŐďŽƚƚŽŵƐƵƉƚŚƌŽƵŐŚŽƵƚƚŚĞũŽď͘ /ĨƉƌĞƐƐƵƌĞŝƐƐĞĞŶŝŵŵĞĚŝĂƚĞůǇĂĨƚĞƌƉĞƌĨŽƌĂƚŝŶŐ͕ŝƚǁŝůůĞŝƚŚĞƌďĞ ŬŝůůĞĚďǇďƵůůŚĞĂĚŝŶŐǁŚŝůĞ WKK,ŽƌĐŝƌĐƵůĂƚŝŶŐďŽƚƚŽŵƐƵƉƚŚƌŽƵŐŚƚŚĞƐĂŵĞƉŽƌƚƚŚĂƚŽƉĞŶĞĚƚŽƐŚĞĂƌƚŚĞ ĨŝƌŝŶŐŚĞĂĚ͘ ŽŝůdƵďŝŶŐ ϭ͘ D/ZhŽŝůĞĚdƵďŝŶŐhŶŝƚ ĂŶĚƐƉŽƚĂŶĐŝůůĂƌǇĞƋƵŝƉŵĞŶƚ͘ Ϯ͘ ZŝŐƵƉW'>ĞƋƵŝƉŵĞŶƚ͘ ϯ͘ ƵůůŚĞĂĚ Εϭ͘ϱǆǁĞůůďŽƌĞǀŽůƵŵĞ ;ϮϴϬ ďďůƐͿ ŽĨ<t&͕ϴ͘ϰƉƉŐϭй<ůŽƌ ƐĞĂǁĂƚĞƌ ĚŽǁŶƚŚĞƚƵďŝŶŐƚŽƚŚĞ ĨŽƌŵĂƚŝŽŶ͘ 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Operations Performed gd�a._CAbandon ❑ Plug Perforations ❑ Fracture Stimulate 0 Pull Tubing 0 Operaf t r ❑ Suspend 0 Perforate 10 Other Stimulate 0 Alter Casing 0 Change Approved Program ❑I Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 212-042 3. Address: P.O.Box 196612 Anchorage, Development IA Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-20843-03-00 7. Property Designation(Lease Number): ADL 028310&028310 8. Well Name and Number: PBU C-27C 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 13534 feet Plugs measured None feet true vertical 9018 feet Junk measured None feet Effective Depth: measured 13496 feet Packer measured 10147 feet true vertical 9019 feet Packer true vertical 8171 feet Casing: Length: Size: MD: TVD: Burst: Collapse: Conductor 72 20"x 30" 38-110 38-110 1490 470 Surface 2701 13-3/8" 38-2739 38-2684 5380 2670 Intermediate 10428 9-5/8" 35-10463 35-8420 6870 4760 Liner 10212 7" 10213-10513 8223-8460 7240 5410 Liner 939 3-1/2"x 3-3/16" 10186-11125 8202-8948 Liner 3415 2-7/8"x 2-3/8" 10030-13533 8081-9018 10566/11200 11165/11780 Perforation Depth: Measured depth: 12790-13490 feet True vertical depth: 9021-9019 feet Tubing(size,grade,measured and true vertical depth) 5-1/2"17#x 4-1/2"12.6#,L-80 33-10513 33-8460 Packers and SSSV(type,measured and 4-1/2"TIW HBBP PACKER 10147 8171 true vertical depth) No SSSV 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: Swiss JUN 1 1 2N8 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 254 11261 49 370 1020 - Subsequent to operation: No Test Available 340 90 14.Attachments:(required per 20 MC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations p Exploratory 0 Development IZI Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil I7! Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR 0 WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: NIA Authorized Name: Brown,Don L. Contact Name: Brown,Don L. Authorized Title: Petroleum Engineer Contact Email: browd2t BP.com Authorized Signature: CL"-72 f i'�,'�l� -1,'Y) Date: iipH/1�; Contact Phone: +1 9075644675 Form 10-404 Revised 04/2017 ` e" "'`8 RBDMSAPR 2 61018 /_�/�✓ f Submit Original Only . 0 • II 0 1 Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Report Of Sundry Well Operations (10-404) April 23, 2018 To Whom it May Concern: Attached please find the Report Of Sundry Well Operations for Perforate for Well PBU C-27C, PTD #212-042. Sincerely, i U `��/---2_ JY-1 BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage,AK 99519-6612 Daily Report of Well Operations PBU C-27C ACTIVITYDATE SUMMARY CTU#8 1.50"CT Job Scope: Drift/Log/Perforate Arrive on location. MIRU CTU. 4/2/2018 ***Continued on 04/03/18** T/I/O= 1150/380/20 Temp=Hot Assist CTU with FP(PERFORATING) Pumped Flowline Freeze Protect according to procedure. Pump 2 bbls 60/40 meth spear,23 bbls crude 60% F/L Volume, 5 bbls 60/40 Sweep, 33 bbls crude 100% F/L-5 bbls , 3 bbls meth tail. Have IGV closed and Pressure 4/3/2018 up F/L to 1000 psi. Tags hung on well, CTU in control of well @ departure, Final T/I/0=1150/380/20 CTU#8 1.50"CT Job Scope: Drift/Log/Perforate MU&RIH with BOT MHA w/1.75' DJN drift. Knock WHP down. Tag. Paint blue/white flag—10'of TD. POOH. Change Packoff. MU and RIH with Logging tools. 4/3/2018 ***In progress*** CTU#8 1.50"CT Job Scope: Drift/Log/Perforate MU&RIH with BOT MHA w/1.75' DJN drift. Heavy pick up weights in the 2-3/8"liner. Pump 97 bbls of 1% KCL capped with 10 bbls of 6040 meoh to knock down whp.Tag TD at 13480'. PUH 10'and paint blue/white flag. Pooh. Downstack and change packoffs. MU BOT MHA w/ 1.69"logging tools, 1.76" x-over,w/1.75" DJN drift. RIH and lighty tag TD. Log up at 50 fpm to 11000'. Flag coil at 12750'. Pooh. Lay down tools.Tie in to Baker Hughes MCNUGR log dated 19-June-2012. (+2' correction). Corrected PBTD= 13493.97'. MU 32'x 1.56"Millenium HMX pert gun#1. 4/3/2018 ***Continued on 04/04/18*** CTU#8 1.50"CT Job Scope: Drift/Log/Perforate Continue Rih w/32'x 1.56"Millenium HMX perf gun#1.Tag TD, correct depth. Perforate interval 12970'-13002'. PUH, repaint flag. Pooh. LD gun.ASF, ball recovered. MU&RIH w/32'x 1.56" Millenium HMX perf gun#2. Tag TD. Correct Depth. Perforate 12910-12942'md. POOH. LD gun. ASF, ball recovered. MU and RIH with 32'x 1.56"Millenium HMX perf gun#3.Tag TD. Correct depth. Perforate: 12850-12882'md. POOH. LD gun.ASF, ball recovered. MU and RIH with 32'x 1.56"Millenium HMX perf gun#4.Tag TD. Correct depth. Perforate: 12790-12822'. Pooh. 4/4/2018 ***Continued on 04/05/18** CTU#8 1.50"CT Job Scope: Drift/Log/Perforate Pooh with perf gun#4. LD gun,ASF, ball recovered. DHD shot fluid level at 3308'. Perform Weekly BOP test. RDMOL. 4/5/2018 ***Job complete*** Fluids Summary Bbls Type 56 Crude 10 60/40 Methanol 234 60/40 Methnaol with Safelube 140 1%Slick KCL CRN 1NLLHEAD= McEVOY 0 C_2 7 C 4irpry NOTES: WELL ANGLE>70'Q 11274'"" ACTUATOR= BAKER C KB.ELEV= 72.44' I , BF.ELEV= 38.79' KOP= 1400' Max Angie= 98"@ 11461' ----I 221T —5-1/2'OTIS FRO SSSV IF D=4.562" Datum MD= 11030' 010 Datum TVD= 8800 SS 2511' --I5-1/2"X 4-1/2"XO,0=3.958" 20"X30"CONDUCTOR —110 - — 2693' —I 9-5/8"DV PKR 5-1/2"TBG,17#,L-80 AB-MOD,H 2511' GAS LFT MANDRELS 0232 bpf,D=4.892" I ' ST MD TVD DEV TYPE VLV LTCH FORT #11:4 13-3/8"CSG,72#,L-80 BUTT,ID=12.347"—I 2739' 7 3033 2913 43 LBD DOME RM 16 6 5037 4357 43 LBD DMY RM 0 5 6252 5235 47 LBD SO RM 20 #11#### Minimum ID =1.78" 10150' 4 6992 5769 43 LBD DMY RA 0 #11#### MILLED OUT WIPER PLUG 3 7456 6109 43 LBD DMY RA 0 IN DEPLOY SLEEVE 2 7919 6456 41 LBD DMY RA 0 *WM 1 8026 6538 40 LBD DAY RA 0 ##l### —10030' (4"GS 45 KB PKR,D=2.38" TOP OF CEMENT N IA(04/14/11) 10050' y-4' `#%.0 I 1 fes. 1006T 4-1/2"OTIS XA SLD SLV,D=3.813" TUBING RJNCH(03122/11) H 10125'-10127" ;*Zs S. 1014T -I9-5/s"X 4-1/2"TIN HBBP PKR,D=4.00"'�,,i_, ND 10110'-10112't3MD R,i�1 N 10131' i 11W PRB SEAL ASSY,D=4.00" CTD LNR •..!,.. ,tom; •-• —10134' 4"GS 45 KB HCR,D=2.38" 2-7/8"LIk#2,6.4#?,L-80 STL,.0058 bpf,D=2.441" H —10140 , %. ; 10147' —3.70"FLUTED SCOOP GLIDE,D=2.70" ESTIMATED TOP OF CE E NT —10147 �' ,l •� 10150' 3.27"DEPLOY SLV,D=1.78" 1 I it 10186' H3.7"BKR DELOY SLV,D=3.0' ND o; y — 10206' —3.1/2'HES X NP,D=2.813" CT LNR �a 10212' —�7"BOT LNR HGR TIEBACK SLV,D=? 3-1/2"LNR,8.81#,L-80 STL,.0087 bpf,D=2.992" , 10239' I�� ,r �! 44.44-II 1 a 7 10239' --I3-1/2"X3-3/16"XO,D=2.880" 9-5/8"CSG,47#,L-80 BUTT,13=8.681"H 10463' ��!ee, a 4-1/2"TBG,12.6#,L-80 AB-MOD,.0152 bpf,D=3.958" —10613 +i%.! a 7"LNR,26#,L-80 U4S,.0383 bpf,ID=6.276"--j —10513 *�"4 a 4-1/2''WHIPSTOCK —I 10518' ! j 4II.1 MLLOUT WNDOW(C-27B)10513'-10521' °04► 1 3-3/16"LNR,6.2#,L-80,.0076 bpf,D=2.805" H —11126 I3-3/16"WHPSTOCK(06/07/12) 11126' 1 I PERFORATION SUN ARY I LOG: BH MCL/GR ON 06/19/12 3-3/16'LNR MLLOUT WINDOW(C-27C)11131'-11141' ANGLE AT TOP PERF:61"@ 12790' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz SHOT SOZ 1.56" 6 12790-12822 0 04/04/18 1.56" 6 12850-12882 0 04/04/18 1.56" 6 12910-12942 0 04/04/18 1.56" 6 12970-13002 0 04/04/18 1.56" 6 13200-13410 0 06/23/12 1.56' 6 13450-13490 0 06/23/12 •• 13496' H PBTD • 2-3/8"LNR,4.7",L-80 STL,.0039 bpf,D=1.995"—1 13533' ►•- DATE F€V BY CONVENTS 1 DATE REV BY OOM E NTS PRUDHOE BAY UNIT 12113182 N26E INTTAL COMPLETION 08/16/12 RCR/PJC FINAL DRLG CORRECTIONS WELL: C-27C 01/08/97 NORDIC 1 CTD SIDETRACK(C-27A) 03/12/15 PJC PERFORATOW REFORMAT WBS FERMT No:t120420 12110/03 NORDIC1 CTO SIDETRACK(C-27B) 04/09/18 MSS/JMJ ADPE2FS(04/04/18) AR No: 50-029-20843-03 06/26/12 NORDIC1 CTD SIDETRACK(C-27C) SEC 19,T11 N,R14E,1756'FN.&1033'FEL 07/14/12 PJC DRLG DRAFT CORRECTIONS 07/15/12 PJC GLV CORRECTIONS(#1-#4) BP Exploration(Alaska) O 9 >. 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O O N E CL 0 (7) 2 U U M o 0 =' E ¢ II U 03 o /Z ! 1 >- >- } it I Q 1 I g N / ` U E i E I z a c0 _I, N N IC .I M Q N d E I W CO co o 1-- E H iI COO a) c - v� p p c c O d ` coO a) I' i , iJH od N Q O Z H 0 o U o m o IE co m 1 ' 3 co ¢ 1 0 Z I rn ,, I } /!} / nt O 'Ay Li- N CO � 0 3 r N o m N y 1 Q' ` M H- C m o v) o o , c A w a c o E a `a) 0 E 2 a) E73 5 I o a 2 0 a 0 C.) 0 BAKER PRINT DISTRIBUTION LISJT 0 6 2013 HUGHES COMPANY BP Exploration(Alaska)Inc. INTERMEDIATE FINAL Yes (mandatory) 04 WELL NAME (�� 27 C_ RUN NUMBER (mandatory) FIELD Prudhoe Bay BH SALESMAN Okechukwu(Okey)Anyanwu (mandatory) (mandatory) COUNTY North Slope Borough BH DISTRICT Alaska (mandatory) (mandatory) STATE Alaska PAGE OF (mandatory) LOG DATE: TODAYS DATE: 5/31/2013 (mandatory) DISTRIBUTION LIST AUTHORIZED BY: BP Exploration(Alaska)Inc. (mandatory) HAS CLIENT BEEN INVOICED FOR ADDITIONAL PRINTS? COMPANY FIELD FINAL (digitalCD ADDRESS(FEDEX WILL NOT DELIVER TO P.O.BOX) LOGS LOGS image) FILM PERSON ATTENTION #OF PRINTS #OF THIN 15 #OF COPIES #OF COPIES 1 BP Exploration(Alaska)Inc. I 3 1 I I Petrotechnical Data Center LR2-1 9W)E.Benson Blvd. Anchorage,Alaska 99508 2 �ConocePhillips Alaska Inc. I 1 I I Attn Ricky Elgarico IPO Box 100360 Anchorage,Alaska 99510 3 ExxonMobil,Alaska 1 1 I Attn Lynda M.Yaskell and/or Leonardo Elias 3700 Centerpointe Dr. Suite 600 Anchorage,Alaska 99503 4 State of Alaska-AOGCC I 1 I 1 I Christine Shartzer 333 West 7th Ave,Suite 100 Anchorage,Alaska 99501 5 1DNR-Division of Oil&Gas I I I 1 I I Attn:Sean Clifton 550 W.7th Ave,Suite 800 Anchorage,Alaska 99501 TOTALS FOR THIS PAGE: 0 5 5 0 0 0 TOTALS FOR ALL PAGES: 0 5 5 0 0 0 2121-6 c717— by Date 10-04-2012 0 Transmittal Number: 93260 RECEIVED BPXA WELL DATA TRANSMITTAL O C T U 4 2012 Enclosed are the materials listed below. AOGCC (BPXA FIELD LOG DATA) If you have any questions, please contact Doug Dortch at the PDC at 564-4973 Delivery Contents 1 CD-ROM Containing Field Log Data & Electronic Log Prints for the following wells: 07-22A 07-35A -- -/ -- :-)6,7 13-15A • c'h 13-15APB1 2//--/2-6 =/%i /= v� C� , it-z) 13-15APB2 B-20A ,2/ C-01B • 22 r_OQ1 BeB1 • C-27C ,0r4(FZ) F-08B VC) C'O-iCon-t /0c_.n l / '/ fv4_1)EIZ Z%(- /2,6 G,./7 /3 Please Sign and Return one copy of this transmittal. Thank You, Doug Dortch Petrotechnical Data Center Attn: State of Alaska -AOGCC Attn: Christine Shartzer 333 W. 7th Ave, Suite 100 Anchorage,Alaska 99501 Petrotechnical Data Center LR2-1 900 E.Benson Blvd.PO Box 196612 Anchorage,AK 99519-6612 McMains, Stephen E (DOA) From: Lastufka, Joseph N (Northern Solutions) [Joseph.Lastufka@bp.com] Sent: Thursday, July 26, 2012 2:15 PM To: McMains, Stephen E (DOA) Subject: C-27C Completion VTP al - 0 to, Steve, There is a data entry error on this Completion in the surface location. Should be 1755' FNL, not 1775'. PTD#212-042 Thanks! RBDMS JUL 2 7 2012A` Letter of Transmittal IltaiiI ; ( 1, - 011)Th BAKER Date: HUGHES July 17, 2012 ___ a g1v . To: From: State of Alaska AOGCC 4 S Baker Hughes INTEQ 333 W. 7th Ave., Suite 100 C3 0 795 East 94th Avenue Anchorage, Alaska 99501 \,41e �A1 Anchorage, Alaska 99515 ov Bill Michaelson T- Please find enclosed the directional survey data for the following well(s): C-12CPB1 C-12C I a • 0 7•5-- C-27C a ( 2, . O t-t 2, -- . C-01BPB1 C01B . © -dA+4,4_ ),e_.) � 7-278 g la 7 0 5 t B-20A A L to ThMS L�� 2:_xB-05C 2 ( a -- 0go1 07-35A � l . a ( 7 DIRY \1 12, Enclosed for each well(s): 2 hardcopy prints of directional survey reports 1 compact disk containing electronic survey files Please sign and return one copy of this transmittal form to: BP Exploration (Alaska) Inc. Petrotechnical Data Center, LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 to acknowledge receipt of this data. RECEIVED BY: . 17p4:. Ti _ , State of Alaska AOGCC DATE: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la Well Status. ®Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class: 20AAC 25105 20AAC 25110 • ®Development 0 Exploratory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One ❑Service 0 Stratigraphic 2. Operator Name. 5 Date Comp.,Susp,or Aband 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 6/26/2012 . 212-042 • 3 Address: 6. Date Spudded' 13. API Number P.O. Box 196612,Anchorage,Alaska 99519-6612 6/8/2012 • 50-029-20843-03-00 • 4a. Location of Well(Governmental Section): 7 Date T D Reached. 14. Well Name and Number Surface: 6/19/21 l / 1775' FNL, 1033' FEL, Sec. 19,T11N, R14E, UM ' � •r =+ /L PBU C-27C ' 8. KB(ft above MSL): 72.4' 15.Field/Pool(s). Top of Productive Horizon: 1928' FNL, 721' FWL, Sec. 29,T11N, R14E, UM GL(ft above MSL) 37.29' • Prudhoe Bay/Prudhoe Bay . Total Depth 9.Plug Back Depth(MD+TVD). 1870' FNL,2970' FWL, Sec.29,T11N, R14E, UM 13496' 9019' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD). 16. Property Designation. Surface. x- 664357 . y- 5959463 - Zone- ASP4 • 13534' 9018' • ADL 028305&028310 TPI: x- 666249 y- 5954052 Zone- ASP4 11.SSSV Depth(MD+TVD). 17. Land Use Permit. Total Depth.x- 668496 y- 5954160 Zone- ASP4 None 18 Directional Survey: ®Yes 0 No 19.Water depth,if offshore. 20. Thickness of Permafrost(TVD) (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900'(Approx.) 21 Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25 071) 22. Re-Drill/Lateral Top Window MD/TVD. MWD/GR/RES, GR/CCL/MCNL • 11125' 8948' • 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND' HOLE AMOUNT CASING WT. PER FT. GRADE TOP BOTTOM Top BOTTOM SIZE CEMENTING RECORD PULLED 20"x 30" Insulated Conductor Surface 110' Surface 110' 36" •9 cu yds Concrete 13-3/8" 72# L-80 Surface 2739' Surface 2684' 17-1/2" _3906 cu ft Arcticset II 9-5/8" 47# L-80 Surface 10463' Surface 8420' , 12-1/4" 1455 cu ft Class'G', 130 cu ft Arcticset I 7" 26# L-80 10212' 10513' 8222' 8460' 8-1/2" 451 cu ft Class'G' 3-1/2"x 3-3/16" 8.81#/6.2# L-80 10168' 11125' 8188' 8948' 4-1/8" 101 cu ft Class'G' 2-7/8"x 2-3/8" 6.4#/4.7# L-80 10030' 13533' 8081' 9018' 3" 74 sx Class'G' 24. Open to production or injection? ®Yes 0 No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD I ND (MD+TVD of Top&Bottom;Perforation Size and Number): ) 1.56"Gun Diameter,6 spf 5-1/2", 17#, L-80 2511' MD TVD MD ��_ JVD 26 4 1/2", 12ACID,FRACTURE,CEMENT SQUEEZE,ETC. /8171' 13200' 13410' 9022'-9020' `F* 13450'-13490' 9020'-9019' V I� �� DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED LJUL 2 3 2012 2500' Freeze Protect w/58 Bbls of Diesel \ Y viA AOGGC 27 PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc.): July 15,2012 Flowing ' Date of Test Hours Tested Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 7/17/2012 4 Test Period 4 178 1113 13 93 6254 Flow Tubing Casing Press. Calculated OIL-BBL: GAS-MCF: WATER-BBL OIL GRAVITY-API(CORR): Press. 320 2000 24-Hour Rate 4 1067 6676 76 N/A 28. CORE DATA Conventional Core(s)Acquired' 0 Yes ®No • Sidewall Core(s)Acquired? 0 Yes ®No • If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071 None RBDMS JUL 252017 E V V��13! )2-- Form 10-407 Revised 12/2009 CONTINUED ON REVERSE O E ERSE Submit Original Only 29. GEOLOGIC MARKERS(List all formations a. -iarkers encountered): 30. FORMATION TESTS NAME .D TVD Well Tested 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 21TS/Zone 2A 11172' 8978' None Formation at Total Depth(Name): 21TS/Zone 2A 11172' 8978' 31.List of Attachments: Summary of Daily Drilling Reports,Well Schematic Diagram,Surveys 32. I hereby certify that the fo .. g is tr e and c r t the best of my knowledge. n Signed. Joe Lastufka , le. Drilling Technologist Date.1/!gh PBU C-27C 212-042 Prepared By Name/Number Joe Lastufka, 564-4091 Well Number Permit No./Approval No. Dnllrng Engineer Matt Ross, 564-5782 INSTRUCTIONS General. This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated Each segregated pool is a completion Item 4b: TPI(Top of Producing Interval). Item 8 The Kelly Bushing and Ground Level elevation in feet above mean sea level Use same as reference for depth measurements given in other spaces on this form and in any attachments Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00) Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift, Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25 071. Form 10-407 Revised 12/2009 Submit Original Only TREE= 6-3/8'CIW /��//�� WELLHEAD= McEVOY ` � SAF..... NOTES: WELL ANGLE>70°@ 11274"" ACTUATOR= BAKER CI v C KB. ELEV= 72.44' PJC DRAFT BF.ELEV= 38.79'; KOP= 1400'! Max Angle= 98° • 11461'! 2217' _45-1/2"OTIS FRO SSSV NP,D=4.562" Datum MD= 11030' Datum TVD= 8800'SS / ) 2511' -{5-1/2"X 4.1/2"XO,ID=3.958" 20"X 30"CONDUCTOR -{ 110` - 2693' 9-5/8"DV FKR 5-1/Y TBG, 17#,L-80 AB-MOD, - 2511• VI GAS LIFT MANDRELS .0232 bpf,ID=4.892' ST MD TVD DEV TYPE VLV LTCH PORT DATE 7 3033 2913 43 LBD DOME RM 16 07/04/12 13.3/8"CSG,72#,L-80 BUTT,ID=12.34r - 2739' 6 5037 4357 43 LBD DMY RM 0 01/16/09 5 6252 5235 47 LBD SO RM 20 07/04/12 , ij 4 6992 5769 43 LBD DMY RA 0 06/15/97 Minimum ID = 1.78" @ 10150' 3 7456 6109 43 LBD DMY RA 0 06/15/97 2 7919 6456 41 LBD DMY RA 0 06/15/97 WIPER PLUG IN DEPLOY SLEEVE 1 8026 6538 40 LBD DMY RA 0 06/15/97 Mil OM _10030' l-d"GS 45 KB PKR,1D=2.38' TOP OF CEMENT IN IA(04/04/11) -1 10050' i I r i 10067' J4-1/2"OTIS XA SLD SLV,ID=3.813'BEHIND LNR I .. .. HIND TUBING PUNCH(03/22111) -{10125'- 1012T a *. 10147' -{5/8'X 4-1/2"11W HBBP PKR,ID=4.00" 10110'-10112'ELMD 10131' -CW PRB SEAL ASSY,ID=4 00' I LNR C '4 ►M/_ M " 10134' J-4'GS 45 KB PKR,ID=2.38" i 1217/8"LNR,6.4#?,L-80 STI?,.0058 bpf,ID=2.441" - -•10140 WC 514 10147' -3.70 FLUTED SCOOP GUIDE,ID=2.717 ill ESTIMATED TOP OF CEMENT - -10147 It it 10150' -3.27"DEPLOY SLV,ID= 1.78" I e i ;� 10186' -3.7"BKR DEPLOY SLV,D=3.0" BEHIND • 10206' -13-1/2"I-ES X NP,D=2.813" CTD LNR i lir 3 1/2'LHR,8.81#,L 80 STL,.0087 bPf,ID=2.992' H10239• - : 10212 -{7'BOT LNR HGR TRACK SLV,D=? . ! 10239' i-3-1/2"X 3-3/16"XO, ID=2.880 9.5/8'CSG,47#,L-80 BUTT,ID=8.681" 10463' f' ! k 4-1/2"TBG,12.64, L-80 AB-MOD,.0152 bpf,ID=3.958" - -10513 ! "' 'r, ! 7 LNR,26#,L-80 IJ4S, .0383 bpf,ID=6.276' H -10513 ll 4 'I i 4-1/?WHIPSTOCK 1 10518' ! w MILLOUT WINDOW(C-27B)10513' 10521' II 3-3/16'LNR,6.2#,L-80,.0076 bpf,ID=2.805' -11125 \! 3-3/16"WHIPSTOCK(06/07/12) - 11125' !' I 3-3/16'LNR MILLOUT WINDOW(C-27C)11125' 11131' r PERFORA Y REF LOG: BHI MCNL/GR ON 06/19/14 ----- ANGLE —ANGLE AT TOP PERF:91°@ 13200' Note:Rater to Production DB for historical pert data SIZE I SPF INTERVAL Opn/Sgz I DATE 1.56' 6 13200-13410 0 106/23/12 1.56" 6 ' 13450-13490 0 06/23/12 rir 13496' H PB1D 2-3/8"LNR,4.7*,L-80 STI,.0039 bpf,ID=1.995' i- 13533' j 1•. C -,a7C DATE I REV BY I COMMENTS I DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/13/82 N26E ,INITIAL COMPLETION WELL:C-27C 01/08197 NORDIC 1CTD SIDETRACK(C-27A) PERMIT No:'t120420 12/10/03 NORDICI CTI)SIDETRACK(C-27B) API No: 50-029-20843-03 06/26/12 NORDICI'CTD SIDETRACK(C-27C) SEC 19,T11N,R14E, 1756'FNL& 1033'FEL 07/14/12 PJC DRLG DRAFT CORRECTIONS 07/15/12 PJC i GLV CORRECTIONS(#1-#4) BP Exploration(Alaska) North America -ALASKA- BP Page 1 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/2/2012 18:00 - 20:15 2.25 MOB P PRE PREP RIG FOR MOVE. WARM UP MOVING SYSTEM. 20:15 - 20:30 0.25 MOB P PRE NORDIC SUPERINTENDENT ON LOCATION. INSPECT AROUND RIG IN PREPARATION FOR MOVE. HOLD PRE-RIG MOVE SAFETY MEETING WITH RIG CREW, NORDIC FIELD SUPT,TOOLPUSHER,AND WSL. DISCUSS OBSTACLES ON PAD, POSITION OF EQUIPMENT, PLANNED ROUTE, E-STOP FUNCTION,STOP SIGNALS,CLEAR& CONCISE RADIO COMMUNICATION,AND SPOTTER POSITION. 20:30 - 22:00 1.50 MOB P • PRE PULL OFF C-12. MOVE RIG TO C-27. CONFIRMED TWC INSTALLED,ALL VALVES CLOSED,0 PSI ON TUBING AND ANNULUS. PULL OVER C-27. ACCEPT RIG AT 2200 HRS. 22:00 - 00:00 2.00 MOB P PRE SPOT CUTTINGS BOX,TIGER TANK. POSITION EQUIPMENT. PREP FOR OPERATIONS. CONFIRM PRESSURE TESTING OF TREE BODY AND VALVES WITH PRE-RIG TEST CHARTS AND VALVE SHOP FOREMAN. REMOVE TREE CAP,VERIFY LEAK TIGHT TEST. BEGIN NU BOP. 6/3/2012 00:00 - 05:00 5.00 RIGU P PRE NIPPLE UP BOP. GREASE MANIFOLD. PREP LOCATION. STAGE TIGER TANK,PRESSURE TEST LINES. STAGE CUTTINGS BOX. GREASE MUD CROSS. 05:00 - 11:30 6.50 RIGU P PRE CONDUCT RIG MAINTENANCE ON AUDIT CORRECTIONS. 11:30 - 13:00 1.50 BOPSUR P PRE FUNCTION TEST BOPE FROM THE OPS CAB 13:00 - 13:20 0.33 BOPSUR P` PRE SHELL TEST BOPE 13:20 - 17:00 3.67 BOPSUR P PRE CALL AOGCC AS REQUESTED AFTER A GOODS SHELL TEST AND CHUCK SHEEVE HAS WAIVED WITNESSING THE TEST, CONTINUE TESTING BOPE 17:00 - 17:20 0.33 RIGU P PRE REVIEW HIGH GOR SOP AND HOLD PRE-SPUD WITH CREWS(NIGHT TOUR HELD BRIEFS DURING PRE-TOUR MEETING) 17:20 - 17:45 0.42 RIGU P PRE ***HOLD RIG EVACUATION DRILL*** GOOD DRILL,ALL PERSONNEL REPORTED TO THE PRIMARY MUSTER AREA IN—2 MIN WHERE THE HEAD COUNT WAS TAKEN. ONLY DEFFICIENCY TO REPORT WAS A DOOR LEFT OPEN ON THE SECOND LEVEL.I DESCRIBED THE INCIDENT THAT HAPPENED ON THE NABORS RIG WHEN THAT RIG WAS EVACUATED AND SOME OF THE DOORS WERE LEFT OPEN AND THE RIG FROZE UP BY THE TIME THEY MADE ENTRY BACK INTO THE RIG.CLOSE ALL DOORS BEHIND YOU! 17:45 - 20:30 2.75 BOPSUR P PRE CONTINUE TESTING BOPE. TEST FLOOR SAFETY VALVES. WITH TEST COMPLETE, BARRIERS TO WELL ARE NOW:TWC, MASTER AND SWAB VALVE,TESTED BOP. Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP Page 2 of 39¢ Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 'X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date 1 From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 23:30 3.00 RIGU P PRE CONDUCT COIL PREPARATION. STAB ON WITH INJECTOR, BREAK OFF OF STUFFING BOX. CUT E-LINE, BOOT UP. CUT MULESHOE FOR COIL. CHANGE OUT BRASS IN COIL STUFFING BOX. CHANGE OUT UPPER AND LOWER PACKOFFS ON INJECTOR. 23:30 - 00:00 0.50 RIGU P PRE SIMULATED OUT OF CONTROL FIRE IN 'MOTOR ROOM. EVACUATE RIG. GOOD RESPONSE. ALL PERSONNEL IN PRIMARY MUSTER AREA IN 2 MINUTES,15 SECONDS. CONDUCT AAR. ONE TOPIC OF DISCUSSION IS WHETHER OR NOT TO MANUALLY SET RAMS ON WELL TO SECURE WELL. PROCEDURE DOES NOT CALL FOR IT AND DISCUSSION LED TO AGREEMENT THAT PERSONAL SAFETY IS PRIORITY AT THAT POINT. PLAN WOULD DEVELOP BASED UPON WHERE FIRE IS AND DANGER LEVEL. 6/4/2012 00:00 - 00:30 0.50 RIGU P PRE ATTEMPT TO FILL COIL. LEAK AT PRESSURE BULKHEAD. 00:30 - 01:45 1.25 RIGU N SFAL PRE TROUBLESHOOT AND REPAIR PRESSURE BULKHEAD 01:45 - 02:45 1.00 RIGU P PRE FLUID PACK COIL. REVERSE CIRCULATE TO PUMP BACK CABLE PRESSURE TEST INNER REEL IRON AND INJECTOR PACKOFFS TO 250 PSI LOW,3500 PSI HIGH. PRESSURE BULKHEAD LEAKING DURING HIGH PRESSURE TEST. 02:45 - 04:45 2.00 RIGU N SFAL PRE TROUBLESHOOT AND REPAIR PRESSURE BULKHEAD. CONTINUE WITH CLEARING AND CLEANING AROUND RIG DURING REPAIR. LOAD IN WHIPSTOCK AND MOTOR FOR MILLING WINDOW. PULL NEW FEED PUMP TO FLOOR. 04:45 - 05:15 0.50 RIGU P PRE FLUID PACK COIL. TEST INNER REEL IRON AND PACKOFFS TO 250 PSI LOW,GOOD TEST. CONTINUE TO PRESSURE UP TO 3500 PSI HIGH,PRESSURE BULKHEAD LEAKING AGAIN. BLEED DOWN PRESSURE. 05:15 - 07:30 2.25 RIGU N SFAL PRE INSPECT PRESSURE BULKHEAD AGAIN. TEARDOWN FOR RE-BUILDING. 07:30 - 09:00 1.50 RIGU P PRE GOOD PT ON PRESSURE BULK HEAD PT INNER REEL VALVE AND PACK OFF ON A CHART 09:00 - 09:40 0.67 RIGU P PRE TEST WIRE,GOOD TEST MU BTT CTC, PULL TEST TO 35K. PT 250 LOW &3500 HIGH, GOOD TESTS 09:40 - 10:45 1.08 RIGU P PRE MU BHI UQC 10:45 - 11:30 0.75 RIGU P PRE PT BHI UQC CHECK VALVES 11:30 - 11:55 0.42 RIGU P PRE GOOD TEST MOVE INJECTOR TO THE SIDE AND PREP TO RU VALVE CREW LUBRICATOR 11:55 - 12:10 0.25 RIGU P PRE PJSM WITH VALVE CREW TO GO OVER PULLING TWC PROCEDURE 12:10 - 12:50 0.67 RIGU P PRE RU LUBRICATOR AND PT AS PER SOP Printed 7/9/2012 1:26:01 PM North America-ALASKA- BP • Page 3 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date: 6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°1744.049"9 Long: 0148°40'08.724'W _ Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:50 - 13:20 0.50 RIGU P PRE PULL TWC 13:20 - 13:30 0.17 RIGU P PRE TWC PULLED,NO PRESSURE BELOW.CLOSE MASTER,SSV FOR LEAK TIGHT TEST 13:30 - 13:55 0.42 RIGU P PRE TWC IS PULLED AND ALL SEALS ARE STILL ..INTACT.CLOSE THE SWAB,INSTALL THE NIGHT CAP AND OPEN THE SSV 13:55 - 14:30 0.58 RIGU P PRE PT NIGHT CAP FOR BH KILL 14:30 - 14:50 0.33 DRILL P PROD1 GOOD PT, LINE UP TO PUMP NEAT METH FOLLOWED BY 1% KCL 14:50 - 15:45 0.92 DRILL P PROD1 ONLINE WITH NEAT METH IA&OA PRESSURES AT 0 PSI SWAP TO KCL PUMING AT—6 BPM 45 BBLS CAUGHT FLUID WHP INCREASING 15:45 - 16:15 0.50 DRILL P PROD1 WELL IT APPEARS WE HAVE BEEN ONLY PUMPING FLUID WITH 1 PUMP.WHEN WE STARTED THE WELL KILL WE WERE SUPPOSED TO BE ON BOTH PUMPS.1 OF THE PUMPS WAS THUMPING AND I ASKED THE NORDIC DRILLER TO CHECK OUT HIS PUMPS,NOTHING WAS WRONG.200 BBLS(BY THE MAG PICK UP VOL)INTO THE WELL KILL ASKED FOR A VOLUME ON THE VAC TRUCK AND WE STILL HAD 200 BBLS, PUMP 1 WAS NEVER OPENED TO PUMP AND THAT WAS THE THUMPING.REZERO COUNTERS AND START KILL VOLUME OVER BECASUE WE WERE ONLY PUMPING DOWN THE TUBING AT HALF THE KILL RATE 16:15 - 17:30 1.25 DRILL N DPRB PROD1 —230 BBLS INTO THE WELL KILL WE LOST ALL WHP REDUCE PUMP RATE TO INVESTIGATE AND FOUND NOTHING LEAKING AT SURFACE.BROUGHT PUMPS BACK UP AND IA IS ALMOST TRACKING AT SAME PRESSURE. CALL ODE AND STOP WELL KILL 17:30 - 20:30 3.00 DRILL N DPRB PROD1 CALL FOR SLICK LINE UNIT AND MEMORY SPINNER TOOLS. CALL FOR LITTLE RED HOT OIL SERVICES TO SEND OUT PUMPING UNIT AND DIESEL TRANSPORT. RECEIVE OPS NOTE AND PERMISSION TO PROCEED WITH PLAN. Printed 7/9/2012 1:26:01 PM North America-ALASKA- BP Page 4 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 23:15 2.75 DRILL N DPRB PROD1 PJSM WITH LRHOS ON STAGING TRUCKING. MEET WITH SLICKLINE WSL ON PLAN FORWARD.STAGE TRUCKS. PJSM ON LINE-UP AND PRESSURE TESTING. RIG LITTLE RED UP TO IA. PLACE RIG TRANSDUCER ON IA TO READ IA AND WELL HEAD PRESSURE DURING PUMPING OPS. PRESSURE TEST LRHOS LINES TO 250 PSI LOW,3600 PSI HIGH.GOOD TEST. 23:15 - 00:00 0.75 DRILL N DPRB PROD1 DOWN ON RIG PUMPS. BEGIN PUMPING OPS WITH LRHOS PUMPING DOWN IA TO DETERMINE LIQUID LEAK RATE. INITIAL IA PRESSURE AT 675 PSI,WHP 55 PSI PUMPING DOWN TUBING AT.25 BPM. -.5 BPM: 1630 PSI ON IA,930 PSI SIWHP -.75 BPM: 1650 PSI ON IA,960 PSI ON SIWHP -1.0 BPM: INITIAL PRESSURE 2130 PSI ON IA, 1350 PSI SIWHP. 6/5/2012 00:00 - 00:45 0.75 EVAL N DPRB PROD1 CONTINUE WITH PUMPING OPS TO DETERMINE LIQUID LEAK RATE. -FINAL CIRCULATING PRESSURES AT 1.0 BPM:2580 PSI ON IA,1760 PSI SIWHP -REDUCE RATE TO.75 BPM WITH 2545 PSI ON IA,1770 PSI ON SIWHP -FINAL DETERMINATION OF LIQUID LEAK RATE IS.8 BPM AT 2570 PSI,SIWHP AT 1770 PSI. 00:45 - 04:45 4.00 EVAL N DPRB PROD1 DOWN ON PUMPS. IA BLED OFF RAPIDLY IN CONJUNCTION WITH WHP. ON WITH RIG PUMPS ACROSS TOP TO KEEP HOLE FULL AT.2 BPM WITH 50 PSI. INITIAL IA PRESSURE CAME UP TO 700 PSI. -PJSM ON STAGING SLB SLICKLINE UNIT, STAGING LRHOS AWAY FROM RIG AND RIGGING UP THEIR HOSES FOR PUMPING DOWN IA DURING"SPINNER"LOGGING. -LINE OUT LRHOS HOSES,PRESSURE TEST TO 250 PSI LOW AND 3500 PSI HIGH -STAGE SLB SLICKLINE UNIT. RU SHEAVES. MOBILIZE SLICKLINE LUBRICATOR AND PUMP-IN SUB TO RIG FLOOR. -RU SLB BOP UNIT, LUBRICATOR,QUICK TEST SUB, PUMP-IN SUB -IA PRESSURE INCREASED TO 860 PSI, SIWHP INCREASED TO 225 PSI DURING RU OPERATIONS Printed 7/9/2012 1:26:01 PM North America-ALASKA- BP Page 5 of 39 Operation Summary Report Common Well Name: C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070"17'44.049"9 Long: 0148"40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:45 - 06:00 1.25 EVAL N DPRB PROD1 STOP PUMPING DOWN TUBING. CLOSE MASTER, PRESSURE TEST TO 250 LOW,3500 PSI HIGH. CLOSE SWAB AND TEST SAME. GOOD TESTS. BREAK OFF NIGHT CAP AND RU SLB SLICKLINE LUBRICATOR WITH BOP AND PUMP-IN SUB TO BOP STACK. PRESSURE TEST LUBRICATOR TO 250 PSI LOW AND 3500 PSI HIGH. -IA PRESSURE FALLING OFF DUE TO NO PUMPING DOWN TUBING 06:00 - 07:00 1.00 EVAL N DPRB PROD1 OPEN UP TO WELL, NO PRESSURE. CREW CHANGEOUT WITH SCHLUMBERGER, LITTLE RED,AND NORDIC CREWS. 07:00 - 10:00 3.00 STWHIP N DPRB WEXIT CONDUCT DRIFT RUN WITH 2.71" CENTRALIZER AND 2.5"BAIL BASKET. NO ISSUES. LD DRIFT BHA. 10:00 - 15:30 5.50 STWHIP , ' N DPRB WEXIT MU"SPINNER"LOGGING BHA. RIH WITH LOGGING BHA WITH NO PUMPS TO DETERMINE BASELINE. PUMP DOWN BACKSIDE, EVENTUALLY REACHING A LIQUID LEAK RATE OF 2500 PSI AT 1.3 BPM. LOG AT ALL INTERVALS OF CONCERN. POH. -RETRIEVE MEMORY TOOL FROM BHA. 15:30 - 17:30 2.00 STWHIP N DPRB WEXIT DOWNLOAD DATA FROM LOGGING RUN. ANALYZE DATA. MEET WITH WSL ON INTERPRETATION. DETERMINED THAT ONLY LEAK POINT IN WELL IS AT CEMENT JOB OF PREVIOUS TUBING PUNCH. 17:30 - 20:45 3.25 STWHIP N WEXIT RIG DOWN SLB LOGGING TOOLS.CLEAR RIG FLOOR. 20:45 - 22:45 2.00 WHIP P WEXIT DISPLACE FRESH WATER FROM COIL WITH KCL. PRESSURE TEST AGAINST MASTER AND SWAB TO 250 PSI LOW,3500 PSI HIGH. GOOD TEST. OPEN UP TO WELL, NO PRESSURE. FILL WELL AGAINST CLOSED CHOKE UNTIL WELLHEAD PRESSURE OBSERVED. TOOK 15 BBLS TO OBTAIN POSITIVE WELLHEAD PRESSURE. OPEN UP CHOKE AND FILL ACROSS TOP WHILE MONITORING WELL. -IA AT 645 PSI WHILE PUMPING ACROSS TOP -SHUT DOWN PUMPS AND MONITOR TO DETERMINE LOSS RATE. IA PRESSURE DROPPED TO 600 PSI DURING EVALUATION PERIOD. -ON WITH PUMPS TO FILL WELL. CALCULATE 8 BPH LOSS RATE. -BAKER REP ON LOCATION. CONTINUE TO PUMP ACROSS TOP WHILE HAVING PJSM ON BHA MU. 22:45 - 00:00 1.25 STWHIP P WEXIT PULL NIGHTCAP. MONITOR WELL. MU WHIPSTOCK BHA. STAB ON WITH INJECTOR. PRESSURE TEST QUICK TEST SUB. Printed 7/9/2012 1:26:01PM • North America-ALASKA- BP4110 Page 6 of Operation Summary Report �.. , Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001 00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time. 11/11/1982 12.00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049'9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/6/2012 00:00 - 03:00 3.00 STWHIP P WEXIT RIH WITH WHIPSTOCK BHA WITH EDC OPEN AND FILLING WELL ACROSS THE TOP. IA PRESSURE WHILE RIH AT 680 PSI DENSITY CHANGES BEGINING AT 6800'. DENSITY AT 6.2 PPG AT 8100'. NO ISSUES WITH FLOW THROUGH GAS BUSTER LOTS OF DIESEL -COMING BACK WITH RETURNS DENSITY AND OUT RATE ERRATIC BUT NO ISSUES FLOWING THROUGH MUD GAS SEPARATOR. IA PRESSURE HOLDING AT 690 PSI PICK UP WEIGHT 43K AT 10,000'. 03:00 - 03:30 0.50 STWHIP P WEXIT INCREASE CIRCULATION DOWN COIL AND PUMP WHILE PICKING UP TO TIE-IN POINT TO KEEP POSITIVE FLOW THROUGH MUD GAS SEPARATOR. PINCH IN CHOKE TO MAINTAIN 100 PSI BACKPRESSURE WHILE PICKING UP HOLE AND DURING LOGGING. PICK UP TO 10,470'FOR LOGGING. -CIRCULATION PRESSURE 770 PSI,IA PRESSURE AT 790 PSI AT 1.90 BPM. -INCREASE IN DIESEL RETURNS,DIVERT RETURNS FROM MUD GAS SEPARATOR TO TIGER TANK UNTIL RETURNS ARE BACK TO PRIMARILY KCL. -CIRCULATION PRESSURE 935 PSI,IA PRESSURE AT 895 PSI AT 2.0 BPM 03:30 - 05:00 1.50 STWHIP P WEXIT LOG TIE-IN WITH-22.5'CORRECTION. -MAINTAIN 2.0 BPM,915-930 PSI CIRCULATION. DENSITY AND RATE OUT TO TIGER TANK LOOK GOOD,TAKE RETURNS BACK TO MUD GAS SEPARATOR THROUGH PARTIALLY CLOSED CHOKE TO MONITOR RETURNS. EVENTUALLY OPEN TO FULL OPEN WITH STEADY DENSITY AND OUT RATE. TAKE RETURNS THROUGH NORMAL FLOW PATH WITHOUT MUD GAS SEPARATOR -IA AT 775 PSI WHILE PUMPING AT 2.0 BPM 05:00 - 05:30 0.50 STWHIP P WEXIT PICK UP TO 9900'. LOG CCL FOR PLACING LINER TOP FROM 9900'TO 10,200'. 05:30 - 06:00 0.50 STWHIP P WEXIT RIH TO 11,000'. LOG CCL FOR WHIPSTOCK PLACEMENT FROM 11,000'TO 11,300'. 06:00 - 07:30 1.50 STWHIP P WEXIT PU TO WHIPSTOCK SETTING DEPTH OF 11,134'(TOP OF WHIPSTOCK AT 11,125'). ORIENT TO 45-LOHS. CIRCULATE BOTTOMS UP. INCREASE RATE TO 3.25-BPM IN/3-BPM OUT WITH 2580-PSI. IA/OA PSI AT RATE= 960-PSI/20-PSI. LOSS RATE INCREASES SLIGHTLY TO 16-BPH WHILE CIRCULATING AT INCREASED RATE. 07:30 - 07:45 0.25 STWHIP P WEXIT SHUT DOWN PUMP&CLOSE EDC. PRESSURE UP TO SET WHIPSTOCK PER PLAN AT 45-LOHS WITH TOP AT 11,125'. SEE —SET AT 3640-PSI. PU TO 11,100'. ROUTE RETURNS TO TIGER TANK FOR 10-BBLS. 07:45 - 08:45 1.00 STWHIP P WEXIT CIRCULATE FULL WELLBORE VOLUME AT 2.5-BPM WITH 2200-PSI. IA/OA=900-PSI/ 20-PSI. NO LOSS RATE. Printed 7/9/2012 1:26.01 PM North America ALASKA BP1110 Page 7 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:45 - 11:00 2.25 STWHIP P WEXIT WITH 102-BBLS PUMPED-SEE RETURN RATE INCREASE. SHUT DOWN PUMP AND MONITOR. PRESSURE NOT INCREASING. DISCUSS SITUATION WITH ODE AND CTD SUPT. DECIDE TO CIRCULATE SUSPECTED IA FLUID TO TIGER TANK. SMALL AMOUNT OF GAS&—10-BBLS DIESEL RETURNS TO TIGER TANK. ONCE RETURNS CLEAN UP,TAKE THEM BACK TO THE PITS. CIRCULATE AT 2.5-BPM/2600-PSI. IA= 950-PSI. NO ISSUES NOTED AT BOTTOMS UP FROM SHUT DOWN POINT. CONTINUE TO CIRCULATE FOR A TOTAL OF 2.5X BOTTOMS UP. 11:00 - 12:00 1.00 STWHIP P WEXIT LINE UP TO TIGER TANK TO ALLOW LUBRICATOR GAS.TO VENT OUTSIDE. ONCE OUT MM SHOWS NO FLOW,ESTABLISH KCL RETURNS. LINE UP TO POSSUM BELLY AND SHUT DOWN PUMPS. FLOW CHECK WELL. IA PRESSURE DROPS TO 685-PSI AS SOON AS PUMPS ARE SHUT DOWN. BLEED IA(ALL -FLUID)FROM 685-PSI,STABLIZES AT 520-PSI DURING BLEED. SHUT IN AND IA UP TO 675-PSI IMMEDIATELY,THEN SLOWLY INCREASES AND STABLIZES AT 685-PSI AGAIN. CONTINUE TO FLOW CHECK-NO FLOW OBSERVABLE FOR 15-MINUTES. 12:00 - 12:30 0.50 STWHIP P WEXIT ESTABLISH CIRCULATION AT 2.5-BPM/ 3250-PSI AND STAGE PUMP UP TO 3-BPM/ 3400-PSI. IA/OA=931-PSI/20-PSI. PVT= 196-BBLS. POH WITH WHIPSTOCK RUNNING TOOLS FROM 11,100'TO 8225'. TRIP SHEET MATCHES CALCULATIONS. 12:30 - 13:00 0.50 STWHIP P WEXIT WITH 100-BBLS PUMPED(—BOTTOMS UP FROM KNOWN HOLES)SEE DIESEL/CRUDE RETURNS. STOP MOVING COIL AND TAKE CRUDE/DIESEL/GAS RETURNS TO TIGER TANK. SCS NOTIFY BP RADIO, PAD OP&SIM OPS OF CONTINUING GAS VENTING. RETURNS CLEAN UP AFTER 30-BBLS. TAKE RETURNS BACK TO PITS. 13:00 - 14:30 1.50 STWHIP P WEXIT CONTINUE TO POH FROM 8225'T0200' CRICULATE AT 2.6-BPM/2400-PSI/ PVT= 146-BBLS. IA/OA=880-PSI/20-PSI. 14:30 - 15:00 0.50 STWHIP P WEXIT HOLD PJSM ON FLOW CHECK AND LD WHIPSTOCK RUNNING BHA. DISCUSS POSITIONS OF PEOPLE,BHA HANDLING IN THE EVENT OF WELL CONTROL OPS,CURRENT WELL CONDITIONS,AND SIMOPS ON RIG SITE. FLOW CHECK WELL-NO FLOW. IA PRESSURE WITH PUMPS OFF=688-PSI. Printed 7/9/2012 1:26:01 PM . North America ALASKA BP • Page 8 of 3'; Operation Summary Report Common Well Name: C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:07001744.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING©72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:00 - 16:00 1.00 STWHIP P WEXIT UNSTAB INJECTOR&SET BACK OVER CIRC HOLE. BLOW DOWN AND LD WHIPSTOCK RUNNING BHA. SEND OUT WHIPSTOCK RUNNING TOOLS. FILL WELL AND MONITOR. -BLOW DOWN TIGER TANK HARDLINE. IA/OA/PVT=690-PSI/20-PSI/96-BBLS. 16:00 - 18:30 2.50 STWHIP P WEXIT HOLD PJSM ON RU IA CIRCULATION LINE. DISCUSS EQUIPMENT NEEDED,DOUBLE VALVE ISOLATION FROM RIG, COMMUNICATION BETWEEN DSM&RIG CREW AND OBJECTIVES. MOVE SLOP TRAILER AWAY FROM RIG AND SPOT CHOKE SKID. MOVE SLOP TRAILER BACK INTO POSITION. HARDLINE CREW MU HARDLINE FROM CELLAR THROUGH CHOKE SKID TO TIE INTO TIGER TANK LINE. REMOVE FLANGE FROM OUTERMOST IA VALVE&INSTALL INTEGRAL FLANGE TO ALLOW TIE-IN TO CIRC HOSE. MU CIRC HOSE TO HARDLINE. -HARDLINE CREW TEST ALL NEWLY `INSTALLED HARDLINE TO 4000-PSI USING CRYSTAL DATA RECORDER. GOOD TEST. WELL IS STATIC. 18:30 - 19:45 1.25 STWHIP P WEXIT HOLD PJSM ON MU WINDOW MILLING BHA. DISCUSS BHA COMPONENTS. MU 2.74" MILLING BHA. STAB ON WITH INJECTOR AND PRESSURE TEST QUICK TEST SUB. 19:45 - 22:00 2.25 STWHIP P WEXIT RIH WITH MILLING BHA. 22:00 - 2315 1.25 STWHIP P WEXIT LOG TIE IN. PICK UP AND LOG CCL FROM 9950'TO 10,300'. 23:15 - 00:00 0.75 STWHIP P WEXIT RIH TO ABOVE TOP OF WHIPSTOCK. BEGIN TO CIRCULATE BOTTOMS UP. INITIAL PRESSURE OF 3860 PSI AT 2.5 BPM. PRESSURE SEEMS HIGH. WALK SURFACE LINES TO MAKE SURE EVERYTHING LINED UP PROPERLY. DOWN ON PUMPS. FUNCTION EDC TO CLOSED AND BACK TO OPEN POSITION TO ENSURE OPEN. BRING UP PUMPS TO 2 BPM,2315 PSI. 2.6 BPM. 3900 PSI. 6/7/2012 00:00 - 01:00 1.00 STWHIP P WEXIT CIRCULATE BOTTOMS UP TO VERIFY CLEAN KCL ALL THE WAY AROUND. 2.55 BPM,3900 PSI. IA AT 940 PSI,SIWHP AT 40 PSI. NO CHANGE IN DENSITY, RATES OR PRESSURE WITH BOTTOMS UP. CONTINUE CIRCULATING AND PREP TO DISPLACE 50 BBLS FROM IA. PJSM ON LINE UP AND DISPLACEMENT. STRAP TIGER TANK, INSPECT LINES. Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP Page 9 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 I End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING©72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:00 - 02:30 1.50 STWHIP P WEXIT LINE UP OUTSIDE CHOKE SKID TO TIGER TANK. RE-INSPECT VALVE ALIGNMENT ON RIG, ISOLATE RIG FROM CHOKE SKID. INITIAL IA PRESSURE AT 690 PSI WITHOUT PUMPS ON. COME ON WITH RIG PUMP VERY SLOWLY AND STAGE RATE UP TO 1.5 BPM AGAINST CLOSED CHOKE TAKING RETURNS UP IA THROUGH CHOKE SKID TO TIGER TANK. IA AT 705 PSI,SIWHP AT 65 PSI. IA INCREASED TO 715 PSI AND SIWHP INCREASED TO 100 PSI. NO GAS TO TIGER TANK,FLUID PACK THE WHOLE TIME. PUMP 75 BBLS AWAY AT 1.5 BPM. FINAL IA PRESSURE 690 PSI,SIWHP 150 PSI. DOWN ON PUMPS,CLOSE IN IA. IA PRESSURE AT 665 PSI,SHUT IN PRESSURE DROPPED OFF TO 25 PSI. SLOWLY OPEN UP CHOKE ON RIG,CHECK FOR FLOW. IA DROPPED TO 575 PSI,INITIAL FLOW DROPPED OFF IMMEDIATELY TO NO FLOW. FLOW CHECK WELL,NO FLOW. 02:30 - 04:45 2.25 STWHIP P WEXIT DISPLACE FROM 8.4 PPG KCL TO 8.5 PPG .DRILLING MUD. 3.0 BPM,3000 PSI,8.5 PPG IN AND OUT. CLOSE EDC. RUN DOWN AND DRY TAG AT 11,126.3'. PUW 43K. 04:45 - 05:15 0.50 I STWHIP N SFAL WEXIT TROUBLESHOOT MICROMOTION. OPEN EDC TO CIRCULATE AT HIGHER RATES. IA AT 960 PSI, CIRC PRESSURE 1990 PSI AT 2 BPM. COOL DOWN IN MICROMOTION SENSOR, FLUSH OUT MICROMOTION AS PREVENTATIVE MEASURE. IN AND OUT RATES GOOD. 05:15 - 06:00 0.75 STWHIP P WEXIT CLOSE EDC. OBTAIN SLOW PUMP RATES. CREEP DOWN AND TAG WHIPSTOCK WITH PUMPS ON AT 11,125.6'. PICK UP AND COME DOWN ON PUMPS. ELECTRICIAN ON SITE TO LOOK AT OUT DENSITY ON MICROMOTION. 06:00 - 07:30 1.50 STWHIP N SFAL WEXIT INSPECT OUT MICROMOTION. CHECK FLUID DENSITY USING PRESSURE BALANCE. MW OF FLUID IN PITS=8.5-PPG, MW OF RETURNS=8.5-PPG. MM IN IS READING 8.62-PPG, MM OUT IS READING 8.49-PPG. OPEN EDC AND MOVE PIPE SLOWLY CIRCULATING AT 1.6-BPM/1700-PSI. IA PRESSURE=960-PSI. DISCUSS WITH CTD SUPT AND AGREE TO TAKE MUD WEIGHTS USING PRESSURE BALANCE EVERY 15-MIN. MW IN AND OUT PER PRESSURE BALANCE AT 0730-HRS=8.5-PPG. CLOSE EDC&RIH. Printed 7/9/2012 1:26:01 PM • North America ALASKA BP 40 Page 10 of 39 Operation Summary Report Common Well Name: C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date: 6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site:PB C Pad p Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:O0AM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°1T44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:30 - 18T00 10.50 STWHIP P WEXIT RIH VERY SLOWLY, PUMPING A I 1.6/-13PMI 2430-PSI. IA PRESSURE=950-PSI. TAG WHIPSTOCK AT 11,125.6'. STALL AND PICKUP. RIH AGAIN AND BEGIN TIME MILLING FROM 11,125.3'. IA/OA/PVT=960-PSI/25-PSI/319-BBLS. TIME MILL FIRST 1', MONITORING DHWOB AND MOTOR WORK. -' SLOW PROGRESS MILLING AS KEEPING 6' DHWOB BELOW 2.5K-LBS. CONSISTENT MOTOR WORK OF 200 TO 300-PSI. 1911)40, WHILE MILLING WINDOW,GATHER RIG CREW AND HOLD IN-DEPTH DISCUSSION 1/1' AND WALKTHROUGH OF LINING UP TO CIRCULATE THROUGH MGS. REVIEW NORDIC PROCEDURE&CHECKLIST. ASSIGN PEOPLE TO POSITIONS. PERFORM VERIFICATIONS REQUIRED BY CHECKLIST. SHOW NEW"RED-HAT"ROUSTABOUT ALL EQUIPMENT AND EXPLAIN FUNCTION. REVIEW VALVE LINE UP WITH CREW. EXCELLENT PARTICIPATION AND CONVERSATION. CATCH SAMPLE FROM 11,129.6'. VERY FINE METAL SHAVINGS. 18:00 - 00:00 6.00 STWHIP P WEXIT CONDUCT CREW CHANGEOUT. CONTINUE WITH MILLING. DETERMINE THAT INITIAL EXIT AT 11,130.5'DUE TO PRESSURE DIFFERENTIAL AND CALCULATION FROM PINCH POINT. CALCULATE STRING MILL EXITING WINDOW AT 11,131.5'. CONTINUE TIME MILLING WINDOW. BOTTOMS UP SAMPLE FROM 11,129'HAS VERY LITTLE FORMATION IN IT,MOSTLY PIPE SCALE. -HAVING TROUBLE TRANSFERRING WEIGHT TO BIT. SUSPECT MOTOR HANGING ON WINDOW. CONSULT WITH MUD ENGINEER ON LUBE PERCENTAGES AND BEST METAL-TO-METAL FRICTION ADDITIVE. -PICK UP TO MAKE REAM PASS AND HAVE 10K OVERPULL WITH DIFFICULTY PULLING UP PAST WINDOW. PULL PAST AND STALL MOTOR AT 11,127'. MAKE TWO REAM PASSES TO ENSURE CLEAN EXIT. -NO CHANGE IN BOTTOMS UP SAMPLE AT 11,131', PRIMARILY PIPE SCALE AND LINER RUNNING BEADS -ABLE TO NOW GET GOOD WOB, INCREASED TO 2.8K AND DRILLED OFF QUICKLY,SLOWLY GRAB 1/10TH TO KEEP WOB. BEST PARAMETERS SEEM TO BE 2.1-2.5KWOB DRILLING OFF TO 1.8K WITH 500-800 PSI DIFFERENTIAL. -DRILL TO 11,134',IN AND OUT MW 8.5 PPG, IA AT 965 PSI AT 1.67 BPM,2545 PSI CIRC PRESSURE Printed 7/9/2012 1:26:01 PM North America-ALASKA BP • Page 11 of 39 Operation Summa Report Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations • (hr) (ft) 6/8/2012 00:00 - 06:00 6.00 STWHIP P WEXIT DRILL INTO OPEN HOLE BY PLACING WOB UP TO 2.5K AND ALLOWING TO DRILL OFF TO 1.8K WITH 650-850 PSI DIFFERENTIAL AND THEN REPEATING CYCLE. -IN AND OUT MW 8.5 PPG, IA HOLDING CONSTANT AT 965 PSI AT 1.67 BPM, 2500-2580 PSI CIRC PRESSURE -BOTTOMS UP FROM 11,135'REVEALS PRIMARILY METAL WITH 3%FORMATION COMING BACK -SAMPLE FROM 11,136'IS APPROXIMATELY 25%SANDSTONE WITH REMAINDER METAL -SAMPLE FROM 11,137'INCREASED TO APPROXIMATELY 30%SANDSTONE, CONFIRMING DRILLING INTO OPEN HOLE AND NOT TRACKING CASING SAMPLE FROM 11,138'IS 40%SANDSTONE; CONTINUE DRILLING WITH SAME PARAMETERS -MW IN AND OUT 8.5 PPS,CIRC PRESSURE 2525 PSI AT 1.65 BPM,IA AT 965 PSI -WINDOW COMPLETE AT 11,140.5' 06:00 - 08:00 2.00 STWHIP P WEXIT CONDUCT CREW CHANGE OUT. BACK REAM THROUGH WINDOW UP AND DOWN THREE TIMES. MAKE DRY DRIFT RUN THROUGH WINDOW. ALL TRIPS CLEAN. LOSE COMMUNICATION WITH MWD TOOLS. ALL CABLES FROM SAT OFFICE TO JUNCTION BOX IN REEL HOUSE TEST GOOD. CATCH 11,140.5'SAMPLE. —60%FORMATION. FLOW CHECK WELL-NO FLOW. 08:00 - 10:00 2.00 STWHIP P WEXIT POH WITH WINDOW MILLING BHA. UNABLE TO OPEN EDC DUE TO INABILITY TO COMMUNICATE WITH TOOLS CIRCULATE AT 1.9-BPM/2430-PSI. IA/OA INITIALLY=940-PSI/32-PSI. IA/OA AT END OF TRIP=700-PSI/30-PSI. 10:00 - 10:30 0.50 STWHIP P WEXIT HOLD PJSM ON LD WINDOW MILLING BHA. FLOW CHECK WELL-NO FLOW. POH TO 100'. 10:30 - 11:15 0.75 STWHIP P WEXIT UNSTAB INJECTOR&SET BACK OVER CIRC HOLE. LD WINDOW MILLING BHA.GAUGE BOTH MILLS AT 2.74"GO/ 2.73"NO GO. BHI TEST TOOLSTRING&APPEARS TOOL FAILURE. 11:15 - 12:05 0.83 STWHIP P WEXIT MU STACK JETTING NOZZLE,STAB ON INJECTOR&TEST QTS TO 250-PSI/3500-PSI. RIH&JET STACK X3, PUMPING AT 1.4-BPM/ 1100-PSI. IA WHILE JETTING=590-PSI. 12:05 - 12:30 0.42 STWHIP P WEXIT PUMP 3-BBLS OF 8.4-PPG FRESH WATER THROUGH IN MM. IN MM DENSITY READS 8.39-PPG.RIG ELECTRICIAN ADJUST IN MM TO REFLECT CORRECT DENSITY OF 8.34-PPG. FLOW CHECK-NO FLOW. Printed 7/9/2012 1:26:01 PM • North America ALASKA BP • Page 12 of 39 Operation Summary Report Common Well Name C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070017'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 12:45 0.25 STWHIP P WEXIT UNSTAB INJECTOR&LD NOZZLE. BEGIN CLEANING HIGH PRESSURE SCREENS. 12:45 - 13:30 0.75 DRILL P PROD1 CHANGE OUT CHECK VALVES IN UQC. MEG TEST E-LINE FROM UQC TO BHI COMPUTER-GOOD TEST. TEST CHECKS TO 250-PSI/3500-PSI.HOLD AND CHART EACH TEST FOR 5-MINUTES. BREAK OUT TEST PLATE&SET INJECTOR BACK OVER CIRC HOLE FINISH CLEANING HIGH PRESSURE SCREENS.CLEAN DITCH MAGNETS.CHANGE OUT SHAKER SCREENS. 13:30 - 14:00 0.50 BOPSUR , " P PROD1 PERFORM BOPE FUNCTION TEST FROM OPS CAB CONSOLE. GOOD TEST. 14:00 - 14:45 0.75 BOPSUR P PROD1 HOLD AAR ON JOB STEPS FROM LD MILLING BHA TO MU DRILLING BHA. HOLD PJSM ON MU DRILLING BHA. HIGHLIGHT POSITIONS OF PEOPLE,DROPPED OBJECTS POTENTIAL 14:45 - 15:15 0.50 DRILL P PROD1 MU BUILD DRILLING BHA WITH 2.7"X 3"HYC DURAFORCE CUTTER BICENTER BIT AND 1.7-DEG AKO 2-3/8"X-TREME MOTOR.OAL=58.30'. IA/OA=590-PSI/22-PSI. 15:15 - 16:00 0.75 DRILL P PROD1 MU COIL TO STRING&STAB ON INJECTOR. TEST QTS TO 250-PSI/3500-PSI FOR 5-MIN PER TEST.GOOD TESTS. TEST HIGH PRESSURE SCREENS TO 4000-PSI.GOOD TESTS. 16:00 - 18:15 2.25 DRILL P PROD1 RIH WITH BUILD DRILLING BHA TO 10,500'. CIRCULATE THROUGH OPEN EDC AT 2-BPM/ 1600-PSI. 18:15 - 20:15 2.00 DRILL P PROD1 LOG TIE IN PER GEO.-23.5'CORRECTION. CIRCULATE AT 2.4-BPM/2100-PSI. IA/OA= 1030-PSI/26-PSI. 20:15 - 20:45 0.50 DRILL P PROD1 RIH TO BOTTOM.PICKUP WEIGHT 41K. OBTAIN AND RECORD SLOW PUMP RATES. Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP • Page 13 of 39 Operation Summary Report Common Well Name: C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:45 - 00:00 3.25 DRILL P PROD1 DRILL AHEAD DIRECTIONALLY IN BUILD SECTION.FREE SPIN 2300 PSI AT 1.7 BPM. -VERY FAST DRILLING WITH MINIMAL WEIGHT ON BIT INITIALLY.EXPECTED DOG-LEG SEVERITY AT -22°BUT GETTING 28-30°DLS. CONDUCT WIPER TRIP WITH LITTLE DIFFICULTY AND RELATIVELY LOW PRESSURES SO IT LOOKS LIKE CUTTINGS ARE MOVING WELL UP HOLE 1.67 BPM,2500-2730 PSI, ECD 10.11 PPG, .17-1.91K WOB,MW IN AND OUT 8.5 PPG 6/9/2012 00:00 - 03:45 3.75 DRILL P PROD1 DRILL AHEAD IN BUILD SECTION.FREE SPIN 2300 PSI AT 1.60 BPM. -HEAVY OIL TAR(HOT)SIGNATURE AT 11275'MD,8953'TVD. SLIGHTLY HIGHER THAN ANTICIPATED. 1.61 BPM,2390-2740 PSI, ECD 10.10-10.15 -PPG,MW IN AND OUT 8.51 PPG,.93-4.2K WOB 03:45 - 04:30 0.75 DRILL P PROD1 -CONDUCT KICK WHILE TRIPPING DRILL ON WIPER TRIP TO WINDOW. COIL OPERATOR DOWN ON PUMPS AND STOP MOVING. OBSERVE FLOW LINE SIMULATE CONFIRM FLOW COIL OPERATOR CALLED OUT INCREASING PRESSURE ON PACKOFFS, WSL CALLS OUT PACKOFF FAILURE. COIL OPERATOR THEN STATES SHUTTING IN UPPER COMBI RAMS. WSL CALLS DOWN TO MOTORMAN FOR PRESSURE READINGS, CONFIRMS THAT MANIFOLD AND SYSTEM PRESSURES ARE CORRECT. WSL CALLS TO CELLAR FOR STATUS. NO LEAKS AND RAMS CLOSED GIVE ALL CLEAR AND CONDUCT AAR. 04:30 - 06:00 1.50 DRILL P PROD1 DRILL AHEAD FROM 11,400'. FREE SPIN 2340 PSI AT 1.6 BPM. -1.61 BPM,2390-2540 PSI,ECD 10.10 PPG, MW IN AND OUT 8.53 PPG,.93-1.91K WOB -LAND BUILD SECTION AT 11,450',PUMP 15 BBL HI-VIS PILL TO COINCIDE WITH TRIP OUT OF HOLE -MAKE BHA WIPE WHILE PILL MOVING DOWN COIL -FLOW CHECK WELL,NO FLOW 106:00 - 09:00 3.00 DRILL P PROD1 PICK UP WEIGHT 42K. POH WITH BUILD BHA TO 400'. CIRC AT 3-BPM/2400-PSI. IA PRESSURE= 800-PSI. 09:00 - 09:20 0.33 DRILL P PROD1 FLOW CHECK WELL-NO FLOW. HOLD PJSM ON LD BUILD DRILLING BHA. DISCUSS POSITIONS OF PEOPLE,WELL CONTROL CONSIDERATIONS, DROPPED OBJECTS POTENTIALS AND MITIGATIONS AND WINDY CONDITIONS. POH TO 100'. Printed 7/9/2012 1:26:01 PM Page 14 of 3s( North America-ALASKA- BP , O•eration Summa Re sort Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 'X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time. 11/11/1982 12:00.00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:20 - 10:00 0.67 DRILL P PROD1 UNSTAB INJECTOR AND SET BACK OVER CIRC HOLE. CTS BEGINS REPLACING HIGH PRESSURE HYDRAULIC FILTERS AS PART OF STEM MAINTENANCE ON INJECTOR AND POWER PACK. LD BUILD DRILLING BHA. GRADE BIT 7-5-LT-N-X-I-BT/RO/B U/WT-BHA. ONE MISSING NOSE CUTTER AND ALMOST ALL CUTTERS ON BIT ARE DAMAGED IN SOME WAY. IA/OA=590-PSI/30-PSI. PVT=259-BBLS. 10:00 - 10:45 0.75 DRILL P PROD1 BHI ADJUST MOTOR BEND FROM 1.7-DEG TO 1.1-DEG. CTS CONTINUES CHANGING HYDRAULIC FILTERS ON POWER PACK. TOP OFF WELL AND MONITOR FLUID LEVEL- WELL STATIC. 10:45 - 11:45 1.00 DRILL P PROD1 CHANGE OUT BHI CHECK VALVES. REMOVED CHECK VALVES IN MARGINAL CONDITION-SPRINGS WEAKENED. INSTALL NEW CHECK VALVES. TEST NEW CHECKS TO 250-PSI/3500-PSI. _ HOLD AND CHART EACH TEST FOR 5-MIN. GOOD TESTS. _RD TEST EQUIPMENT. 11:45 - 12:30 0.75 DRILL P PROD1 HOLD PJSM ON MU LATERAL BHA. DISCUSS POSITIONS OF PEOPLE,WELL CONTROL CONSIDERATIONS, BHA COMPONENTS& WINDY CONDITIONS. MU LATERAL DRILLING BHA WITH NEW 2.7"X 3"HYC DURAFORCE CUTTER BIT,1.1-DEG AKO MOTOR,AND RESISTIVITY. OAL=67 85' IA/OA=600-PSI/30-PSI. 12:30 - 13:00 0.50 DRILL P PROD1 MU COIL TO BHA&STAB ON INJECTOR HEAD. PRESSURE TEST QTS TO 250-PSI/3500-PSI. GOOD TESTS. 13:00 - 13:30 0.50 DRILL P PROD1 REPLACE(2)EA 0-RINGS ON POWER PACK FILTER CANISTER. 13:30 - 14:30 1.00 DRILL N DFAL PROD1 ATTEMPT TO OPEN EDC. ONLY PARTIALLY OPENS ATTEMPT TO CLOSE EDC DOES NOT CLOSE COMPLETELY. UNSTAB INJECTOR AND SET BACK OVER CIRC HOLE. CHANGE OUT EDC STAB ON INJECTOR&TEST OTS TO 250-PSI/ 3500-PSI FOR 5-MIN PER TEST. GOOD TESTS. OPEN EDC WITHOUT ISSUE IA/OA=605-PSI/23-PSI. PVT=256-BBLS. 14:30 - 17:00 2.50 DRILL P PROD1 ESTABLISH CIRCULATION AT 2-BPM/ 1700-PSI. RIH WITH LATERAL DRILLING BHA. 17:00 - 17:30 0.50 DRILL P PROD1 HOLD KICK WHILE TRIPPING DRILL WITH BROWNE'S CREW. EXCELLENT CREW RESPONSE. HOLD AAR AND HIGHLIGHT INDIVIDUAL RESPONSIBILITIES AND IMPORTANCE OF CLEAR&CONCISE RADIO COMMUNICATIONS. Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP • Page 15 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 i Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWt/Lat:070017'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:30 - 17:45 0.25 DRILL P PROD1 CONTINUE TO RIH TO 11,080'. CLOSE EDC. PASS THROUGH WINDOW WITHOUT ISSUE. 17:45 - 18:00 0.25 DRILL P PROD1 LOG TIE IN FROM 11,150'. CIRCULATE AT.2-BPM/1100-PSI. IA/OA= 870-PSI/30-PSI. -MAD PASS FROM 11,100'TO 11,450' JORPS CHECKSHOT TAKEN AT 11,370' 18:00 - 20:45 2.75 DRILL P PROD1 RIH TO 11,450'. OBTAIN AND RECORD SLOW PUMP RATES. BEGIN DRILLING AHEAD FROM 11,450. FREE SPIN 2490 PSI AT 1.61 BPM. 20:45 - 21:15 0.50 DRILL P PROD1 BHA WIPER TRIP. NO ISSUES ON WIPER TRIP. RUN BACK DOWN. 21:15 - 22:00 0.75 DRILL P PROD1 DRILL AHEAD FROM 11,530'. FREE SPIN 2500 PSI AT 1.63 BPM. -1.60-1.66 BPM,2680-3330 PSI,ECD 9.59-10.33 PPG,.97-3.06K WOB,MW IN 8.53 PPG,MW OUT 8.56 PPG,IA AT 1030 PSI WHILE DRILLING AHEAD 22:00 - 22:45 0.75 DRILL P PROOF WIPER TO WINDOW FROM 11,600'. PUW 41K. RUNNING WEIGHT 40.5-41.7K. SLACK OFF WEIGHT RUNNING IN HOLE 11.2-12.5K. NO ISSUES ON WIPER TRIP. 22:45 - 00:00 1.25 DRILL P PROD1 DRILL AHEAD FROM 11,600'. FREE SPIN 2535 PSI AT 1.63 BPM. -1.64 BPM,3260-3340 PSI,ECD 10.25 PPG, 3.5K WOB,MW IN 8.53 PPG,MW OUT 8.57 PPG,IA HOLDING STEADY AT 1025 PSI -NO LOSSES TO FORMATION NOTED 6/10/2012 00:00 - 01:00 1.00 DRILL -- P PROD1 DRILL AHEAD IN LATERAL SECTION FROM 11,700'. FREE SPIN 2540 PSI AT 1.64 BPM. -1.32-1.65 BPM,2370-3370 PSI, ECD 10.32, .72-.89K WOB,IA AT 1025 PSI 01:00 - 01:15 0.25 DRILL P PROD1 HARD DRILLING AND SOME PRESSURE INCREASE, BHA WIPER TO POSSIBLY CLEAN UP WELL. PUW 42.9K. PRESSURED UP WIPING THROUGH 11.603'. REST OF TRIP GOOD, PICK UP WEIGHT 39-40K. SLACK OFF AT 11.5-12.9K. 01:15 - 03:30 2.25 DRILL P PROD1 DRILL AHEAD FROM 11,715'. FREE SPIN 2600 PSI AT 1.65 BPM. -1.55 BPM,2640-2700 PSI,ECD 10.33 PPG, 2.0-5.0 K WOB,MW IN 8.3 PPG,MW OUT 8.5 PPG,IA STEADY AT 1030 PSI -MAKE SEVERAL BHA WIPERS -ROP DROPPED OFF DRASTICALLY, SAMPLES DO NOT REVEAL SHALE BUT 20-25%CHERT. DRILL AHEAD WITH NEGATIVE COIL WEIGHT BUT GETTING GOOD WEIGHT TO BIT. PUMP 20 BBL HI-VIS PILL IN CONJUNCTION WITH WIPER TRIP; RAN BACK DOWN WITH NO ISSUES. GETTING OVER 5K WOB WITH NEGATIVE COIL WEIGHT BUT VERY LITTLE DIFFERENTIAL PRESSURE. SUSPECT BIT WEAR OR POSSIBLE MOTOR DAMAGE. Printed 7/9/2012 1:26:01PM `'North America -ALASKA- BP „ln✓. Page 16 of 39 Operation Summary Report Common Well Name:C-27 1 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 'X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"g Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 06:45 3.25 DRILL P PROD1 FLOW CHECK OFF BOTTOM. NO FLOW. POH FOR BHA INSPECTION. FLOW CHECK AT WINDOW. NO FLOW. CONTINUE TO POH. STOP AT 200'FROM SURFACE AND JOG BACK DOWN TO 500'AT HIGH RATE TO ASSIST IN FLUSHING WELLBORE. PICK BACK UP TO 200'. CLOSE EDC,FLOW CHECK AT SURFACE. 06:45 - 07:30 0.75 DRILL P PROD1 CONDUCT CREW CHANGE OUT. FLOW CHECK WELL AT 200'. NO FLOW. HOLD PJSM ON LD LATERAL DRILLING BHA. DISCUSS INJECTOR HANDLING, COMMUNICATION,WELL CONTROL CONSIDERATIONS AND ORDER OF OPERATIONS. 07:30 - 08:00 0.50 DRILL P PROD1 UNSTAB INJECTOR AND SET BACK OVER CIRC HOLE. BLOW DOWN BHI TOOLSTRING. HANG BACK LATERAL DRILLING BHA AND LD MOTOR AND BIT. BIT IS COMPLETELY WRUNG OUT ON THE NOSE. GRADE BIT 8-3-RO-N-X-I-CT-PR. MOTOR ABLE TO TURN -FREELY. IA/OA/PVT=610-PSI/33-PSI. PVT= 237-BBLS. 08:00 - 09:00 1.00 DRILL P PROD1 CHANGE OUT BHI CHECKS. ONE FLAPPER HINGE PIN BROKEN& FLAPPER FREE FLOATING. SECOND FLAPPER LOOSE. TEST NEW CHECKS TO 250-PSI/3500-PSI FOR 5-CHARTED MIN PER TEST. GOOD TESTS. RD TEST EQUIPMENT. RESUME INSTALLING SSV REMOTE PANEL IN OPS CAB. 09:00 - 09:30 0.50 DRILL P PROD1 HOLD PJSM ON MU BHA#5. MU BHA#5 WITH 2.7"X 3"HCC BICENTER BIT, 1.1-DEG MOTOR&RESISTIVITY. OAL=67.88' IA/OA=595-PSI/30-PSI. 09:30 - 10:00 0.50 DRILL P PROD1 MU COIL TO BHA&STAB ON INJECTOR HEAD. TEST QTS TO 250-PSI/3500-PSI. GOOD TESTS. 10:00 - 13:00 3.00 DRILL P PROD1 OPEN EDC&ESTABLISH CIRCULATION AT 2.25-BPM/1950-PSI. RIH WITH BHA#5. 13:00 - 13:30 0.50 DRILL P PROD1 CLOSE EDC LOG TIE IN TO RA TAG. APPLY-24'CORRECTION. 13:30 - 14:30 1.00 DRILL P PROD1 CONTINUE TO RIH FROM 11,165'. CIRCULATE AT 1.6-BPM/2320-PSI. IA/OA= 1020-PSI/30-PSI. OBTAIN SLOW PUMP RATES. Printed 7/9/2012 1:26:01PM North America -ALASKA- BP • Page 17 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 'X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 18:30 4.00 DRILL P PROD1 DRILL AHEAD FROM 11,722'. FREE SPIN=1.56-BPM/2400-PSI. AT START,IA/OA/PVT/ECD=1030-PSI/ 30-PSI/288-BBLS/10.43-PPG. DRILL AHEAD WITH HIGHLY VARIABLE ROP. DHWOB FROM 500 TO 3.5K-LBS. MOTOR --WORK FROM 150-350-PSI. INCREASE PUMP RATE TO 1.75-BPM WITH 2520-PSI FREE SPIN. DRILL AHEAD WITH SLIGHTLY LESS VARIABLE ROP. MAKE BHA WIPER AT 11,800'. -CONDUCT CREW CHANGEOUT,GET SLOW PUMP PARAMETERS 18:30 - 21:15 2.75 DRILL P PROD1 CONTINUE WITH ATTEMPT TO DRILL AHEAD Fj2OM 11,818'. DRILL 10'IN ONE HOUR AFTER CONDUCTING WIPER TRIP AND PICK UP TO GET SLOW PUMP RATES. PICK UP CLEAN. WEIGHT TRANSFER TO BIT GOOD AND COIL WEIGHT GOOD. NOT SEEING DIFFERENTIAL PRESSURES OR MOTORWORK WHEN SETTING DOWN. ATTEMPT TO DROP INCLINATION DID NOT WORK; HOT WORKING .BUT LITTLE REACTION FROM BIT. DRILLING AHEAD SLOWLY WITH NEGATIVE COIL WEIGHT. ADDING LUBRICANTS TO SYSTEM TO SEE IF IT WILL HELP.SOME MOTOR WORK SEEN WITH INCREASED WOB. -STACKED DOWN WITH WEIGHT AND COULD NOT DRILL PAST 11,849'. PICK UP FOR BHA WIPER IN ATTEMPT TO SEE IF IT WILL HELP WITH DRILLING. DID NOT HELP. DECIDE TO POH TO INSPECT BHA. CLEAN PICK UP,PICK UP WEIGHT OFF BOTTOM 38K. -FLOW CHECK OFF BOTTOM,NO FLOW 21:15 - 00:00 2.75 DRILL P PROD1 POH TO INSPECT BHA. FLOW CHECK AT WINDOW. -CONDUCT KICK WHILE TRIPPING DRILL ON TRIP OUT. WITH PIT GAIN,DRILLER CAME OFF OF PUMPS. EVERYONE REPORTED TO RESPECTIVE STATIONS. CONDUCTED FLOW CHECK AND SIMULATED FLOW. DRILLER WAS THEN TOLD THAT REMOTE PANEL AT DRILLER CONSOLE AND COIL CONSOLE WERE NOT FUNCTIONING. RADIOED TO MOTORMAN THAT CONSOLE WAS DOWN. HE SIMULATES ISOLATING PANEL AND MANUALLY CLOSING IN HCR. GIVE ALL CLEAR AND CONDUCT AAR. -POH TO 200' 6/11/2012 00:00 - 00:45 0.75 DRILL P PROD1 JOG BACK DOWN WITH PUMPS TO FLUSH TUBING. PICK BACK UP TO 200'. CLOSE EDC, FLOW CHECK. PJSM ON LAYING DOWN BHA AND CHANGING OUT BHA. NO FLOW. PULL TO SURFACE. Printed 7/9/2012 1:26:01 PM 10 North America -ALASKA- BP • Page 18 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:45 - 03:00 2.25 DRILL P PROD1 POP OFF, LD BHA. BIT RUNG OUT,BIT GRADE: 8-2-RO. MILK MOTOR, MOTOR IN GOOD CONDITION. PULL CHECK VALVES, INSPECT,AND REPLACE;CHECK VALVES SPRINGS BROKEN. PRESSURE TEST CHECK VALVES TO 250 PSI LOW AND 3500 PSI HIGH. CHANGE OUT HYDRAULIC ORIENTING TOOL IN BHA. MU LATERAL DRILLING BHA WITH REBUILT 2.70"BY 3.0"HYCALOG BIT. STAB ON WITH INJECTOR. PRESSURE TEST QUICK TEST SUB. HOLE FULL WITH 8.51 PPG MW IN WELL. 03:00 - 06:00 3.00 DRILL P PROD1 RIH WITH DRILLING BHA. LOG TIE-IN AT 11,165'WITH-24.5'CORRECTION. CONTINUE TO RIH TO 11,850'. 06:00 - 10:15 4.25 DRILL P PROD1 DRILL AHEAD FROM 11,850'. FREE SPIN 2730 PSI AT 1.6 BPM. ECD INITIALLY 10.8-PPG. PUMP 30-BBLS LO VIS PILL AND SEE ECD REDUCTION TO 10.4-PPG. DRILL AHEAD WITH 1 -2.5K-LBS DHWOB AND 100-300-PSI MOTOR WORK. ROP STARTS OUT AT—90-FPH. ONCE LO VIS SWEEP IS OUT OF THE HOLE, ECD CONTINUES TO RISE BACK TO 10.8-PPG,WEIGHT TRANSFER ISSUES INCREASE AND ROP DECREASES. PUMP 40-BBLS MORE LO VIS FLUID&ADD TO ACTIVE SYSTEM. AT START,IA/OA/PVT=1050-PSI/30-PSI/ 282-BBLS. AT END, IA/OA/PVT=940-PSI/35-PSI/ 322-BBLS(ADDED 40-BBLS LO VIS FLUID TO ACTIVE) 10:15 - 11:30 1.25 DRILL P PROD1 WIPER TRIP FROM 12,000'. PERFORM MUD SYSTEM FRICTION TEST FOR KLA-STOP SYSTEM WITH 5%LUBES. POH WT=39.5K-LBS,RIH WT= 10.5K-LBS. CIRCULATE AT 1.76-BPM/2560-PSI. NO ISSUES NOTED ON WIPER TRIP. OBTAIN SLOW PUMP RATES. 11:30 - 15:30 4.00 DRILL P PROD1 DRILL AHEAD FROM 12,000'. FREE SPIN=1.78-BPM/2700-PSI. AT START, IA/OA/PVT/ECD=1020-PSI/ 30-PSI/316-BBLS/10.66-PPG. DRILL AHEAD WITH 1.5-3K-LBS DHWOB AND 200-400-PSI MOTOR WORK. ROP INCREASES PAST 12,030'. STALL REPEATEDLY AT 12,060'. VARY PUMP RATE&RUNNING SPEED AND FINALLY ABLE TO DRILL AHEAD. ROP HIGHLY VARIABLE PAST 12,060', REQUIRING FREQUENT BHA WIPER TRIPS TO DRILL AHEAD. DRILL TO 12,103'AND DECIDE TO MAKE EARLY WIPER TRIP. AT END, IA/OA/PVT=1000-PSI/33-PSI/ 302-BBLS/10.7-PPG. 15:30 - 16:30 1.00 DRILL P PROD1 WIPER TO WINDOW. CIRCULATE AT 1.8-BPM/2770-PSI. NO ISSUES ON TRIP OR THROUGH WINDOW. FLOW CHECK WELL-STATIC. Printed 7/9/2012 1:26:01 PM • North America-ALASKA- BP Page 19 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time:11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) - 16:30 - 19:00 2.50 DRILL P PROD1 ESTABLISH CIRCULATION AT 3-BPM/ 3100-PSI. POH WITH BHA#6. FLOW CHECK AT SURFACE,NO FLOW. 19:00 - 20:00 1.00 DRILL P PROD1 LD BHA. BIT IN GOOD SHAPE,BIT GRADE: 3-3-BT. BREAK DOWN BHA IN ORDER TO SWAP OUT MOTOR AND BIT. PRESSURE TEST AGAINST CHECK VALVES TO 250 PSI LOW AND 3500 PSI HIGH. GOOD TEST. 20:00 - 20:45 0.75 DRILL P PROD1 CONDUCT CREW CHANGE OUT WITH NEW CREW COMING ON HITCH. PJSM ON BHA MU WITH EMPHASIS ON FIRST NIGHT BACK AND HIGH GOR OPERATIONS. 20:45 - 21:30 0.75 DRILL P PROD1 MU LATERAL BHA WITH NEW HIGH SPEED MOTOR AND NEW BIT. STAB ON WITH INJECTOR,PRESSURE TEST QUICK TEST SUB. 21:30 - 00:00 2.50 DRILL P PROD1 RIH WITH BHA. LOG TIE-IN AT 11,165'. 6/12/2012 00:00 00:15 0.25 DRILL P PROD1 LOG TIE-IN WITH-26.5 CORRECTION. BEGIN NEW MUD DOWN COIL TO COINCIDE WITH TAGGING BOTTOM. 00:15 - 01:00 0.75 DRILL P PROD1 -CONTINUE WITH RIH WITH LATERAL BHA TO BOTTOM. 01:00 - 04:00 3.00 DRILL P PROD1 ON BOTTOM. DRILL AHEAD FROM 12,103'. INITIAL FREE SPIN 2875 PSI AT 1.65 BPM. -DIFFICULTY DRILLING AHEAD. FREQUENT STALLS WITH VERY LITTLE WOB. -WITH NEW MUD ALL THE WAY AROUND, RECORD FRICTION COEFFICIENT FOR THE ANALYSIS BEING CONDUCTED ON THE MUD SYSTEMS. MW IN AND OUT 8.54 PPG. -OBTAIN AND RECORD SLOW PUMP RATES -CONTINUE VARYING PUMP RATES AND ORIENTATION TO GET DRILLING. FREE SPIN OF 3000 PSI AT 1.75 BPM. ADJUSTED TO HI-SIDE AND INCREASED PUMP RATE TO 1.75 BPM, DRILLED 3'TO 12,121'. -PICK UP OFF BOTTOM FROM 12,121'WITH 5K OVERPULL AT 12,110'. SUSPECT SOMETHING ALONGSIDE BHA. MAKE BHA WIPER. HEAD BACK DOWN WITH A SLIGHT BOBBLE ON RUN IN WEIGHT AT 12,114'. MAKE SEVERAL ATTEMPTS TO GET TO BOTTOM WITH STALLS AT 12,119'. RE-ORIENT TOOLFACE TO HI-SIDE AND INCREASE PUMP RATE IN ATTEMPT TO DRILL. DID NOT HELP. -MW IN 8.55 PPG,MW OUT 8.54 PPG, IA AT 1060 PSI WHEN CIRCULATING AT 1.75 BPM, 3050 PSI -DRILLED 18'IN FIRST 30 MINUTES, NO FOOTAGE LAST 2-1/2 HRS 04:00 - 04:45 0.75 DRILL P PROD1 CONDUCT WIPER TRIP TO WINDOW. NO ISSUES UP OR DOWN. Printed 7/9/2012 1:26:01 PM North America-ALASKA-BP -age 20 of 39 � Operation Summary Report Common Well Name. C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:45 - 05:25 0.67 DRILL P PROD1 BACK ON BOTTOM. INITIAL ATTEMPT STALLED. PICK UP CLEAN. DISCUSS LAST SAMPLE WITH GEO. 5%CHERT,REMAINDER SANDSTONE. DISCUSS DRILLING WITH FIELD SUPERINTENDENT. DECISION IS TO POH TO INSPECT BHA AND CONSIDER PLAN FORWARD. FLOW CHECK ON BOTTOM. NO FLOW, POH. 05:25 - 09:00 3.58 DRILL P PROD1 POH TO WINDOW. FLOW CHECK AT WINDOW-NO FLOW. OPEN EDC,CONTINUE TO POH TO 200'. 09:00 - 09:45 0.75 DRILL P PROD1 FLOW CHECK-NO FLOW. HOLD PJSM ON LD BHA. UNSTAB INJECTOR&INSPECT LAST 100'OF COIL. NO ISSUES NOTED. CTC IS VISIBLY LEAKING. LD DRILLING BHA. REMOVE BHI DBPV- r FLAPPERS ARE FLOPPY BUT PINS/SPRINGS REMAIN INTACT. DEEPER INSPECTION SHOWS WEAR TO BOTH KEEPER PINS. GRADE BIT 1-3-CT-G-X-I-X-PR. SEE MOST SIGNIFICANT WEAR ON LEADING GAUGE CUTTER. 09:45 - 10:30 0.75 DRILL P PROD1 REMOVE UQC&BOOT ELINE. RU&ATTEMPT TO PRESSURE TEST CTC. SEE FLUID LEAKING IMMEDIATELY. BRING PRESSURE UP TO 1400-PSI WITHOUT ANY CHANGE. BLEED PRESSURE OFF&RD TEST EQUIPMENT. CUT OFF CTC. 10:30 - 11:15 0.75 DRILL P PROD1 CLOSE MASTER&SWAB VALVES. WELL IS HOLDING STATIC COLUMN OF FLUID. TEST AGAINST SWAB TO 250-PSI/3500-PSI FOR 5-CHARTED MIN PER TEST. GOOD TESTS. 11:15 - 11:45 0.50 DRILL P PROD1 CTS REBOOT ELINE. 11:45 - 13:30 1.75 DRILL P PROD1 HOLD PJSM ON PUMPING E-LINE SLACK. DISCUSS ORDER OF OPERATIONS,THE IMPORTANCE OF GOOD COMMUNICATION AND STOPPING THE JOB. PU INJECTOR AND STAB ON WELL. REVERSE CIRCULATE FRESH WATER TO DISPLACE COIL. SURGE PUMPS TO 4-BPM&HEAR E-LINE MOVING AND THEN STOP. SURGE TWICE MORE TO 4-BPM WITHOUT ANY FURTHER MOVEMENT. UNSTAB INJECTOR. MANUALLY CUT 25'OF COIL&DRESS STUB FOR CTC INSTALL. IA/OA=580-PSI/25-PSI. 13:30 - 14:00 0.50 DRILL P PROD1 BTT INSTALL DIMPLE STYLE CTC. PULL TEST TO 39K-LBS. GOOD TEST. PRESSURE TEST TO 250-PSI/3500-PSI. GOOD TESTS. Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP • Page 21 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING©72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 15:00 1.00 DRILL P PROD1 MU STINGER&NOZZLE. STAB ON INJECTOR AND LINE UP TO PUMP SLACK FORWARD. PUMP SLACK FORWARD AT 3.6-BPM/ 3200-PSI AND HEAR WIRE MOVING. ONCE WIRE STOPS MOVING,REDUCE RATE -TO 2.7-BPM/1980-PSI TO DISPLACE COIL BACK TO 8.5-PPG MUD. CIRCULATE AN ADDITIONAL COIL VOLUME AT SAME RATE WITH DRILLING MUD PER CTS SLACK PUMPING PROCEDURE. LD NOZZLE&STINGER. SUFFICIENT E-LINE RECOVERED. IA/OA=5631-PSI/23-PSI. 15:00 - 15:30 0.50 DRILL P PROD1 BHI INSTALL UQC. 15:30 - 16:15 0.75 DRILL P PROD1 INSTALL NIGHT CAP AND PRESSURE TEST TO 250-PSI/3500-PSI. HOLD AND CHART EACH TEST FOR 5-MINUTES. GOOD TESTS. OPEN WELL TO CLOSED CHOKE. 0-PSI. FILL WELL UNTIL CATCH PRESSURE. TOOK 3-BBLS OF MUD TO FILL. OPEN CHOKE-NO FLOW. IA/OA=618-PSI/20-PSI. PVT=224-BBLS. 16:15 - 16:45 0.50 DRILL P PROD1 HOLD PJSM ON MU DRILLING BHA. DISCUSS POSITIONS OF PEOPLE,CHANGES TO BHA FROM LAST RUN,WELL CONTROL CONSIDERATIONS AND EXPOSURE TO SUSPENDED LOADS. MU BHA#8 WITH NEW 2.7"X 3"HYC DURAFORCE BIT, NEW 1.1-DEG AKO X-TREME MOTOR, FLOAT SUB,AND WITHOUT RESISTIVITY. OAL=60.06' 16:45 - 17:15 0.50 DRILL P PROD1 STAB ON INJECTOR HEAD AND TEST QTS TO 250/3500-PSI FOR 5-MIN PER TEST. 17:15 - 19:30 2.25 DRILL P PROD1 OPEN EDC AND ESTABLISH CIRCULATION AT 2-BPM/1775-PSI. RIH WITH BHA#8. 19:30 - 20:20 0.83 DRILL P PROD1 RIH TO 11,126'.CLOSE EDC,TIE-IN TO RA-TAG AND PERFORM-24'DEPTH CORRECTION. 20:20 - 20:35 0.25 DRILL P PROD1 TAG TD AT 12,121.60'AND TAKE SCR'S- NOTICE APPROX.500PS1 LESS CIRC PRESSURE COMPARED TO LAST NIGHT. 20:35 - 21:20 0.75 DRILL P PROD1 CONTINUE DRILLING.OBSERVE SAME DRILLING CHALLENGES THAN BEFORE CANNOT GET BIT TO DRILLING AS MOTOR KEEPS STALLING OUT. HOWEVER NATURE OF PROBLEM DOES NOT APPEAR TO BE HYDRAULIC LOCKING(WHICH IS BASED ON INSUFFICIENT WEIGHT TRANSFER)AS SUFFICIENT WOB IS OBSERVED.THEREFORE BIT-BALLING MIGHT MORE LIKELY BE THE ISSUE. KEEP WORKING COIL. Printed 7/9/2012 1:26:01PM • North America ALASKA- BP • Page 22 of Operation Summary Report �. � .,. Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:20 - 23:15 1.92 DRILL P PROD1 MANAGE TO ENGAGE BIT AND DRILL AHEAD WITH ROP=69FT/HR. CIRC P=3,069 PSI/WOB=3.33 K LBS/ECD 10.56 PPG MM IN= 1.80 BPM/MM OUT= 1.83 BPM MM IN=8.54 PPG/MM OUT=8.51 PPG IA=880 PSI/OA=26 PSI AROUND 12.110'OBSERVE SHARP SPIKE IN GAMMA-RAY FROM-20API TO-120AP1 INDICATING SHALE.KEEP WORKING COIL AND NOTICE ROP UP TO 160FT/HR. 23:15 - 23:30 0.25 DRILL P PROD1 PERFORM BHA-WIPER TO 12,100' FREE-SPIN =2,542PS1. 23:30 - 00:00 0.50 DRILL P PROD1 CONTINUE DRILLING.CONTINUE TO SEE STALL-OUTS, BUT KEEP MAKING HOLE AT 60 -80FT/HR WHENEVER BIT IS ENGAGED. GEO CALLS AND REPORTS APPROX.60%OF WHITE CLAY IN 12.150'-SAMPLE. 6/13/2012 06:00 - 09:00 3.00 DRILL P PROD1 DRILL FROM 12,258'TO 12 267'WITH GREAT DIFFICULTY. SEEING"SOFT STALLS"AT-700-PSI MOTOR WORK AND NO DRILLING OFF OF WOB. SOME RUBBER COMING ACROSS SHAKERS. DISCUSS SITUATION WITH ENGINEERING TEAM. VARY WOB, PUMP RATES,ORIENTATION, RUNNING SPEED. MAKE MULTIPLE SHORT • WIPER TRIPS FROM BHA LENGTH TO 500'WITHOUT SUCCESS PUMP 20-BBLS LO VIS FLUID. DOES NOT CHANGE INABILITY TO DRILL. 09:00 - 10:15 1.25 DRILL P PROD1 FLOW CHECK WELL WHILE MOVING COIL SLOWLY. NO FLOW. POH TO INSPECT BHA. CIRCULATE AT 1.8-BPM/2700-PSI ON TRIP TO WINDOW. NO ISSUES ON TRIP TO WINDOW OR PASSING THROUGH WINDOW. IA/OA=850-PSI/30-PSI. 10:15 - 12:30 2.25 DRILL P PROD1 POH TO 11,100'. OPEN EDC.FLOW CHECK WELL-NO FLOW. ESTABLISH CIRCULATION AT 3-BPM/ 2450-PSI. POH TO 200'. IA/OA=930-PSI/30-PSI. 12:30 - 13:15 0.75 DRILL P PROD1 FLOW CHECK WELL-STATIC. HOLD PJSM ON LD BHA#8. DISCUSS ORDER OF OPERATIONS, POSITIONS OF PEOPLE AND WELL CONTROL CONSIDERATIONS. UNSTAB FROM WELL. INSPECT CONNECTOR -NO VISIBLE LEAKS. SET INJECTOR BACK OVER CIRC HOLE. BLOW DOWN BHI TOOLSTRING. LD BHI TOOLSTRING. LD MOTOR&BIT. MOTOR TURNS BUT SUSPECT DAMAGED. BIT IN DECENT SHAPE, WITH CLAY PACKED BETWEEN SOME GAUGE ROWS. GRADE BIT 2-2-CT-A-X-I-BU-PR Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP • Page 23 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time:11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:15 - 13:45 0.50 DRILL P PROD1 TEST BHI TOOLSTRING USING RIG AIR TO 125-PSI. NO VISIBLE LEAKS. PU INJECTOR, MU TEST PLATE&TEST CTC. TEST TO 3500-PSI-NO VISIBLE LEAKS. RD TEST PLATE&SET INJECTOR BACK OVER CIRC HOLE. IA/OA=600-PSI/30-PSI. -PVT=226-BBLS. 13:45 - 14:30 0.75 DRILL P PROD1 DISCUSS SITUATION WITH ODE. OPS NOTE TO SWAP TO 2"COIL RECEIVED. CLEAN&CLEAR RIG FLOOR AND SEND OUT ALL EXTRA TOOLS/MOTORS FOR REDRESS. 1350-HRS-LEAVE MESSAGE FOR AOGCC WITH 24-HR NOTICE OF BI-WEEKLY BOPE TEST. 14:30 - 15:30 1.00 DRILL P PROD1 MU NIGHT CAP&RU TO PERFORM BARRIER VERIFICATION TESTS. CLOSE MASTER VALVE. TEST TO 250-PSI/ 3500-PSI. HOLD AND CHART EACH TEST FOR 5-MINUTES. CLOSE SWAB VALVE. TEST TO 250-PSI/ 3500-PSI. HOLD AND CHART EACH TEST FOR .5-MINUTES. BARRIERS FOR REDRESSING BOP STACK ARE 1)TESTED MASTER AND 2)TESTED SWAB. 15:30 - 16:00 0.50 DRILL P PROD1 HOLD PJSM ON PREP TO PICKLE/ BLOWDOWN REEL. 16:00 - 17:30 1.50 DRILL P - PROD1 MU SWIZZLE STICK&STAB INJECTOR ON WELL.ATTEMPT TO TEST QTS TO 250-PSI/ 3500-PSI. 0-RING FAILURE ON HIGH TEST. REPLACE 0-RING. TEST QTS TO 250-PSI/3500-PSI FOR 5-MIN PER TEST. DISPLACE COIL TO FRESH WATER AT 1.4-BPM/1030-PSI.JET BOP STACK WHILE DISPLACING. 17:30 - 19:00 1.50 DRILL P PROD1 SLB N2 UNIT RU LINES. FILL RIG WATER TANK. 19:00 - 19:30 0.50 DRILL P PROD1 PJSM BEFORE PRESSURE-TESTING N2-LINES. 19:30 - 20:00 0.50 DRILL P PROD1 ADJUST LINE-UP SO PRESSURE CAN BE MONITORED DOWNSTREAM OF N2-TRUCK'S CHECKVALVE. 20:00 - 20:50 0.83 DRILL P PROD1 COOL DOWN N2-UNIT AND COMMENCE PRESSURE TEST ON N2 SURFACE LINE AS PER OPS NOTE: APPLY 260PS1 ON MONITOR FOR 5MIN. NOTICE PRESSURE-DROP OF 14PSI WHICH IS WITHIN THE ALLOWABLE CRITERIA OF 25PSI(10%).INCREASE PRESSURE TO 4,100PSI AND MONITOR FOR 5MIN.OBSERVE A PRESSURE-DROP OF 124PSI WHICH IS WITHIN THE ALLOWABLE CRITERIA OF 250PSI. ACCEPT TEST UPON VISUAL INSPECTION OF LINE-UP. Printed 7/9/2012 1:26:01PM • North America -ALASKA- BP Page 24 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date: 6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12.00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:50 - 22:30 1.67 DRILL P PROD1 MIX CORROSION INHIBITOR IN PITS WITH 15BBLS FRESH WATER. LINE UP TO PITS AND PUMP CORROSION INHIBITOR DOWN THE COIL, FOLLOWED BY 10BBLS OF METHANOL. LINE UP TO N2-TRUCK AND BLOW DOWN REEL WITH 420-GAL /3,900-SCF OF N2. 22:30 - 23:00 0.50 DRILL P PROD? POP OFF INJECTOR, INSTALL NIGHTCAP. CUT&BOOT ELINE AND TRIM COIL. INSTALL PULL BACK GRAPPLE. 23:00 - 23:20 0.33 DRILL P PROD1 HOLD PJSM WITH ALL NORDIC AND SLB CREWS BEFORE PULLING COIL BACK ACROSS THE RIG ROOF. SECURE COIL TO REEL WITH SHIPPING BAR AND CLAMP. 23:20 - 00:00 0.67 DRILL P PROD1 SPOOL BACK COIL AND START SECURING COIL TO REEL. 00:00 - 02:00 2.00 DRILL P PROD1: NOTICE IMPROVEMENT IN DRILLING AS LESS STALL-OUTS OCCUR. DIRECTIONAL DRILL 3"LATERAL HOLE SECTION FROM 12,121'MD TO 12,231'MD (110'IN 2.0 HRS=55 FPH;UP TO 115 FPH INSTANTANEOUS ROPS,1.8 BPM,410 BIT RPM,2,740 PSI FREESPIN,—1,300 PSI DIFFERENTIAL,3.5 KLBS DOWNHOLE WOB. ECD=10.5 PPG.OBSERVE ABOUT 5BBLS/HR LOSSES TO FORMATION WHILE DRILLING. DISCUSS WITH GEO AND DECIDE TO COME UP TO—8,948'TVD SS IN ATTEMPT OF GETTING OUT OF THE WHITE CLAY. 02:00 - 03:15 1.25 DRILL P PROD1 SEE ROP DROPPING DOWN TO OFT/HR AGAIN.PERSEVERE AND WORK COIL THROUGH LAYER OF SHALE/WHITE CLAY. NOTICE GOOD ROP OF 60-80FT/HR ROP WHEN BIT IS ENGAGED. IT APPEARS THAT —1,5 KLBS IS THE"SWEETSPOT'FOR GETTING THE BIT TO DRILL. FIND PIECES OF MOTOR-RUBBER ON SHAKER,INDICATING WEAR ON MOTOR. 03:15 - 03:50 0.58 DRILL P PROD1 PUMP 20BBLS OF LO-VIS PILL. 03:50 - 04:10 0.33 DRILL P PROD1 PILL IS COMING OUT OF BIT,BUT DOES NOT APPEAR TO HELP THE ISSUE WITH MOTOR STALLING OUT. CONTINUE DRILLING AHEAD TO 12,261.7' 04:10 - 06:00 1.83 DRILL P PROD1 PICK UP AND PERFORM 1ST 150'WIPER TRIP TO WINDOW (11,150'),AND RUN BACK IN HOLE. PERFORM MAD-PASS BETWEEN 12,110'AND 12,125'. 6/14/2012 00 00 - 01:00 1.00 DRILL N DPRB PROD1 COMPLETE SECURING COIL WITH SHIPPING BAR,COIL STOP AND SHIPPING CLAMP TO REEL. Printed 7/9/2012 1:26:01 PM North America-ALASKA- BP Page 25 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date 6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase ' Description of Operations (hr) (ft) 01:00 - 03:00 2.00 DRILL N DPRB PROD1 PREPARE TO CUT OFF COIL AND TO TAKE DOWN HORSES HEAD. NOTICE THAT COIL MIGHT HIT BRIDGE CRANE WHEN RELEASED FROM HORSES HEAD. STOP THE JOB, RE-ASSESS SITUATION AND DISCUSS HOW TO INSTALL STRAP TO CONTROL COIL.SECURE COIL, REMOVE HORSES HEAD AND CUT OFF 15'OF COIL. ATTACHED BRIDGE CRANE TO REEL. 03:00 - 03:30 0.50 DRILL N DPRB PROD1 REMOVE HARDLINE FROM REEL DRUM. 03:30 - 03:45 0.25 DRILL N DPRB PROD1 HELD PJSM WITH RIGCREW AND CH2 TRUCK DRIVERS. 03:45 - 04:30 0.75 DRILL N DPRB PROD1 MOVE IN FLATBED AND LOWER DOWN 2-3/8"-REEL. INSPECT DRIVE PINS ON DRIVE PLATES AND FIND ONE CRACKED PIN ON ODS. 04:30 - 06:30 2.00 BOPSUR N DPRB PROD1 STOP JOB AND CALL OUT SLB WELDER. PREPARE TO REDRESS INJECTOR CALL OUT NORDIC FIELD SUPERINTENDANT BEFORE STARTING THE INSPECTION/ REDRESS BOP. 06:30 - 08:00 1.50 BOPSUR N DPRB PROD1 REDRESS OF BOPE FOR 2"COIL OPERATIONS. TOP DOWN CONFIGURATION: ANNULAR, BSR,2"PIPE/SLIPS, MUD CROSS,2-3/8" PIPE/SLIPS,2"PIPE/SLIPS. 08:00 - 12:00 4.00 DRILL N DPRB PROD1 REDRESS GOOSENECK,PACKOFF AND INJECTOR HEAD FOR 2"COIL. SLB WELDER REMOVES DRIVE PIN WITH CRACKED WELD. INSTALLS&WELDS NEW DRIVE PIN. REASSEMBLE INJECTOR/PACKOFF/ GOOSENECK,ALL DRESSED FOR 2"COIL. 1153-HRS-LEAVE MESSAGE WITH AOGCC UPDATING TIMING. 1200-HRS-AOGCC REP JEFF JONES WAIVES STATE'S RIGHT TO WITNESS BOPE TEST. IA/OA=440-PSI/0-PSI. 12:00 - 14:00 2.00 DRILL N DPRB PROD1 DISCUSS INSPECTION CRITERIA FOR NEWLY INSTALLED REEL DRIVE PIN WITH NORDIC FIELD SUPT&OPS MANAGER, BP CTD SUPT AND CTS DISTRICT MANAGER. CTS BEGINS TRAINING FOR ALL CTS PERSONNEL AND WSL ON NEW PERMANENT SSV CONTROL PANEL IN OPS CAB. 14:00 - 14:30 0.50 BOPSUR N DPRB PROD1 RU TO PERFORM BI-WEEKLY BOPE TEST. 14:30 - 15:30 1.00 BOPSUR N DPRB PROD1 BEGIN BI-WEEKLY BOPE TEST,STARTING WITH FULL BODY TEST OF REDRESSED BOPE. PERFORM TEST TO 250-PSI/4500-PSI PER NORDIC BOPE TESTING PROCEDURE. TEST WITNESSED BY BP WSL&NORDIC TOOLPUSHER. TUBOSCOPE ARRIVES AND PERFORMS MAG PARTICLE INSPECTION REEL DRIVE PIN WELD. WELD GOOD-NO CRACKS. Printed 7/9/2012 1:26:01 PM North America-ALASKA- BP Page 26 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date: 6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00.00AM Rig Release: Rig Contractor:NORDIC CALISTA UWt/Lat.070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:30 - 17:00 1.50 DRILL N DPRB PROD1 HOLD PJSM ON LOADING REEL OF 2"COIL INTO REEL HOUSE. DISCUSS DROPPED OBJECTS POTENTIALS,POSITIONS OF PEOPLE,ORDER OF OPERATIONS AND KEEPING AREA SECURE. LOAD 2"REEL INTO REEL HOUSE&SECURE ON REEL STAND. 17:00 - 00.00 7.00 BOPSUR N DPRB PROD1 RESUME BI-WEEKLY BOPE PRESSURE AND FUNCTION-TEST AS PER NORDIC PROCEDURE,AOGCC REGS&DWOP POLICY.TEST FOLLOWING ITEMS: -ANNULAR BAG (INITIAL TEST FAILED, CHANGE OUT BAG). -#1 RAM-BLIND SHEARS -#2 RAM-2"COMBIS(2"TEST JOINT) -#3 RAM-2-3/8"COMBIS(2-3/8"TEST JOINT) #4 RAM 2"COMBIS(2"TEST JOINT) ALL RAMS CLOSED WITHIN LESS THAN 2SECONDS, BAG IN 5SECONDS.ALSO TESTED HCR AND ALL VALVES ON KILL AND CHOKE LINE AS WELL AS KILL AND CHOKE MANIFOLDS.SUCCESSFULLY TESTED ALL VISUAL AND AUDIBLE GAS ALARMS.SEE ATTACHED CHARTS. PERFORMED ACCUMULATOR DRAWDOWN TEST. -STARTING ACCUMULATOR PRESSURE= 3,000 PSI -FINAL PRESSURE AFTER FUNCTIONING ALL PREVENTERS AND NCR=2,200 PSI -26 SEC TO BUILD 200 PSI,85 SEC TO FULL PRESSURE. -3 NITROGEN BACKUP BOTTLES WITH 2100 PSI. WITNESS OF THE BOP TEST WAS WAIVED BY JEFF JONES(AOGCC),BUT WITNESSED BY BP WSL&NORDIC TOOLPUSHER. MEANWHILE,CTS INSTALL INNER REEL IRON INSIDE NEW REEL. 6/15/2012 00:00 - 02:30 2.50 BOPSUR N SFAL PROD1 CHANGE OUT THE ANNULAR ELEMENT -PJSM FOR CHANGING OUT ANNULAR ELEMENT. -BREAKING CONTAINMENT IN ACCORDANCE WITH CRT 10-36 -8.5 PPG(KWF)STATIC FLUID COLUMN&A TESTED MASTER AND SWAB VALVES 02:30 - 03:30 1.00 BOPSUR N SFAL PROD1 RE-TEST ANNULAR ELEMENT -250 PSI LOW AND 3500 PSI HIGH.,GOOD TEST 03:30 - 05:00 1.50 BOPSUR N DPRB PROD1 RIG DOWN PRESSURE TEST EQUIPMENT -PREPERATION FOR STABBING COIL FROM REEL HOUSE TO INJECTOR 05:00 - 06:00 1.00 DRILL N DPRB PROD1 HOLD PJSM FOR PULLING COIL ACROSS. PULL COIL ACROSS AND STAB INTO INJECTOR. Printed 7/9/2012 1:26:01 PM North America-ALASKA- BP • Page 27 of 39 Operation Summary Report . r Common Well Name: C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time. 11/11/1982 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING©72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 06:30 0.50 DRILL N DPRB PROD1 PERFORM CREW CHANGE&PRE TOUR CHECKS. IA/OA=360-PSI/15-PSI. 06:30 - 08:00 1.50 DRILL N DPRB PROD1 PREP TO INSTALL CTS DIMPLE CONNECTOR. CUT 4'OF COIL TO GIVE SUFFICIENT E-LINE FOR BHI TO MU UQC. PREP COIL&CTS INSTALL DIMPLE CTC. PULL TEST CTC TO 29K-LBS. BOOT E-LINE. 08:00 - 09:00 1.00 DRILL N DPRB PROD1 STAB ON WELL AND FLUID PACK COIL WITH FRESH WATER. FLUID PACK REEL HOUSE HARDLINE,STAGE PRESSURE UP SLOWLY AND CHECK PRESSURE BULKHEAD-NO ISSUES NOTED. FULLY FLUID PACK COIL WITH FRESH WATER. 09:00 - 09:30 0.50 BOPSUR N DPRB PROD1 TEST INNER REEL VALVE&PACKOFF TO 250-PSI/3500-PSI TO COMPLETE BOPE TEST. HOLD AND CHART EACH TEST FOR 5-FLATLINE MINUTES. GOOD TEST. TEST WITNESSED BY BP WSL&NORDIC TOOLPUSHER. 09:30 - 10:00 0.50 DRILL N DPRB PROD1 DISPLACE COIL TO 8.5-PPG DRILLING MUD. STAGE RATE UP TO 2-BPM. INITIAL PRESSURE=3400-PSI. FINAL PRESSURE WITH MUD THROUGH COIL=2800-PSI. 10:00 - 10:15 0.25 DRILL N DPRB PROD1 UNSTAB INJECTOR. PRESSURE TEST CTC TO 250-PSI/3500-PSI. NO LEAKS. 10:15 - 11:00 0.75 DRILL . N DPRB PROD1 BHI MU UQC WITHOUT CHECKS(RUNNING DUAL FLOAT SUB IN BHA). SET INJECTOR BACK OVER CIRC HOLE. IA!OA=347-PSI/10-PSI. 11:00 - 11:45 0.75 DRILL N DPRB PROD1 MU NIGHT CAP AND PRESSURE TEST SAME AGAINST CLOSED SWAB&MASTER VALVES. HOLD AND CHART EACH TEST FOR 5-MINUTES. GOOD TEST. OPEN UP MASTER&SWAB. 0-PSI ON WELL. FILL WELL-TOOK 13-BBLS TO CATCH PRESSURE. OPEN CHOKE&VERIFY 1 FOR 1 RETURNS. FLOW CHECK-NO FLOW. AFTER FILLING WELL,IA/AO=615-PSI/ 10-PSI. 11:45 - 12:30 0.75 DRILL N DPRB PROD1 HOLD PJSM ON MU BHA#9. MU BHA#9 WITH 2.7"X 3"HYC RAZOR EDGE BIT WITH PLUGGED WING JET,1.1-DEG AKO LS MOTOR,FLOAT SUB AND RESISTIVITY. OAL=71.61'. 12:30 - 13:00 0.50 DRILL N DPRB PROD1 PU INJECTOR AND MU TO BHA. STAB ON WELL. PRESSURE TEST QTS TO 250-PSI/3500-PSI. GOOD TESTS. OPEN EDC AND ESTABLISH CIRCULATION AT .6-BPM/1000-PSI. IA/OA!PVT=625-PSI/10-PSI/219-BBLS. Printed 7/9/2012 1:26:01 PM • , , North America -ALASKA- BP • Page 28 of !, Operation Summary Report Common Well Name:C-27 I AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date: 6/19/2012 X3-011WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°1744.0499 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To His Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 16:00 3.00 DRILL N DPRB PROD1 RIH WITH BHA#9. STEP CIRCULATION RATE UP TO 1 9-BPM/ 2860-PSI. WEIGHT CHECK AT 5000'. PU WT=15K-LBS, RIH WT=8K-LBS. STOP AT 11,030'AND CLOSE EDC. PASS THROUGH WINDOW WITHOUT ISSUE. 16:00 - 16:30 0.50 DRILL N DPRB PROD1 LOG TIE IN TO RA TAG. APPLY-24' CORRECTION. 16:30 - 18:30 2.00 DRILL N DPRB PROD1 CONTINUE TO RIH. CIRCULATING AT 1.6-BPM/ 3280-PSI. TAG AT 12,138'. PU, REDUCE RATE AND MAKE PROGRESS TO 12,152. REPEAT STEP AND MAKE PROGRESS TO 12,162. SET DOWN AT 12,170'. PU AND SEE FIRST STICKY PICK UP WITH—20K-LB OVERPULL. REDUCE PUMP RATE TO.5-BPM/1500-PSI AND PROGRESS TO 12,200'.SEE PACKING OFF/EVIDENCE OF BIT STICKING ON DHWOB SENSOR STARTING ON THE PASS UP TO 12,182' WIPER TO 12,000'. OBTAIN SPRS. -RIH. SET DOWN 5K-LBS AT 12,150'AND POP THROUGH. DECREASE PUMP RATE TO .5-BPM AND RIH TO 12,220'. WIPE BACK AT 1.6-BPM-MUCH CLEANER THAN LAST PASS. REPEAT REDUCE RATE TO.5-BPM AND WORK TO 12,248',WIPING BACK AT 1.6-BPM. SEE 25K-LB OVERPULL PAST 12,197'. RIH AND WORK THROUGH TO 12,268'. REPEAT WIPER BACK TO 12,100'AND THEN ABLE TO RIH TO 12,268'CIRCULATING AT 1-BPM WITH MINIMAL ISSUES. WIPER BACK TO 12,100',ORIENTED TO LOW SIDE. MAKE FINAL TRIP FROM 12,100'TO 12,268'- HOLE MUCH CLEANER ON TRIP IN AND OUT. IA/OA=1012-PSI/16-PSI. 18:30 - 19:30 1.00 DRILL N DPRB PROD1 WIPER TO WINDOW. CIRCULATE AT 1.6-BPM/3200-PSI. DROP PUMP RATE THROUGH WINDOW. NO ISSUES ON TRIP. 19:30 - 19:45 0.25 DRILL N DPRB PROD1 PERFORM TIE-IN TO RA-TAG AND APPLY DEPTH-CORRECTION OF+3.5'. 19:45 - 20:20 0.58 DRILL N DPRB PROD1 CONTINUE RUNNING IN HOLE. 20:20 - 21:20 1.00 DRILL N DPRB PROD1 PERFORM MAD-PASS BETWEEN 11969.8'- 12,269.8'(TD)AT 350FT/HR OBSERVE RATTY SHALES BETWEEN 12,180' AND 12,200',BUT CAN WORK THROUGH. Printed 7/9/2012 1:26:01PM North America -ALASKA- BP • Page 29 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud DaterTime: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ (ft) 21:20 - 21:35 0.25 DRILL N DPRB PROD1 +++PERFORM ACCUMULATOR DRILL+++ REVIEWED WITH NORDIC DRILL CREW THE LINE UP OF THE N2 RESERVE BOTTLES. DISCUSSED SCENARIOS WHEN THIS"LAST RESORT"COULD BE USED AND WENT DOWN TO THE KOOMEY UNIT TO VERIFY LINE-UP --AND SEQUENCE TO BE THE FOLLOWING: 1)SWITCH OFF CHARGE PUMPS(ELECTRIC, AIR) 2)ISOLATE PRE-CHARGED BOTTLES 3)CLOSE REMOTE HYDRAULIC POWER SUPPLY VALVE 4)CLOSE DESIRED RAM MANUALLY AND PLACE ALL OTHER RAM IN NEUTRAL 5)OPEN N2-BOTTLES AND ADJUST PRESSURE TO CLOSE DESIRED RAM '6)MANUALLY LOCK IN RAMS ON BOP NORDIC DRILLER AND MOTORMAN WERE WELL FAMILIAR WITH THE CORRECT LINE UP. NOTICED A CONFUSING LABELING TAG ATTACHED TO THE UNIT AND ASKED DRILLER TO REMOVE TAG. MEANWHILE TAKE SCR'S: PUMP#1: PUMP#2: 1.6 BPM-3,170 PSI-72 SPM1.6 BPM-3,160 PSI-71 SPM 1.0 BPM-2,080 PSI-45 SPM1.0 BPM-2,060 PSI-44 SPM 0.5 BPM-1,450 PSI-22 SPM0.5 BPM-1,430 PSI-20 SPM 21:35 - 22:00 0.42 DRILL P PROD1 DIRECTIONAL DRILL 3"LATERAL HOLE SECTION FROM 12,269'MD TO 12,315'MD. NOTICE GOOD DRILLING PERFORMANCE WITH—100FT/HR. FREE SPIN=3,020 PSI @ 1.56 BPM PUMPRATE=1.59 BPM/CIRC PRESSURE= 3,311 PSI WOB=1.87K LBS/ECD=9.73 PPG MW IN=8.58 PPG/MW OUT=8.56 PPG IAP=942 PSI OAP=17 PSI 22:00 - 22:50 0.83 DRILL P PROD1 GEO CALLS AND REQUESTS INITIALLY TO CLIMB TO 8,946-47'TVD SS, BUT THEN CHANGES PLAN AND REQUESTS TO DROP DOWN FROM 8,945'TVD SS TO 8,949-50'TVD SS IN ORDER TO AVOID THE GAS-OIL CONTACT. 22:50 - 00:00 1.17 DRILL P PROD1 PERFORM 1ST 150'WIPER TRIP TO WINDOW. 6/16/2012 00:00 - 00:15 0.25 DRILL P PROD1 COMPLETE 1ST 150'WIPER TRIP. 00:15 - 00:30 0.25 DRILL P PROD1 CONTINUE DRILLING AHEAD FROM 12,400'. 00:30 - 02:20 1.83 DRILL P PROD1 SEE DROP IN ROP FROM 120FT/HR DOWN TO —48FT/HR AT CONSTANT CIRC PRESSURE OF —3,310PSI(FREE SPIN=3,190 PSI @ 1.56 BPM).ECD=9.74 PPG,WOB=2.23K LBS. GAMMA RAY INCREASES,INDICATING THi< OCCURRENCE OF ANOTHER SHALE. 02:20 - 02:50 0.50 DRILL P PROD1 DRILLING IS NOT IMPROVING,ALSO NOTICE INDICATION FOR CUTTINGS BUILD-UP. DECIDE TO PREPARE A LO-/HI-VIS PILL. Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP Page 30 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:50 - 03:35 0.75 DRILL P PROD1 PUMP 2OBBLS LO-VIS PILL,FOLLOWED BY 2OBBLS HIGH-VIS PILL.MEANWHILE DRILL TO 12,500'. 03:35 - 05:15 1.67 DRILL P PROD1 PICK UP TO PERFORM 2ND 150'WIPER TRIP TO WINDOW. KEEP PUMPING AT MAX RATE OF 1.80BPM AND PULL UP AT 240FT/HR. GEO CONFIRMS THAT 12,450'AND 12,500' SAMPLES HAVE 3%CHERT IN CLEAN WELL-SORTED SANDSTONE. 05:15 - 08:45 3.50 DRILL P PROD1 DRILL AHEAD FROM 12,550'TO 12,700' DRILL WITH ROP OF 40-50FT/HR AT 3,420PSI CIRC PRESSURE.WOB=2.72K LBS AND ECD =9.74 PPG. FREE SPIN=1.62-BPM/3100-PSI. DRILL AHEAD WITH 1.5-3K-LBS DHWOB AND 200-450-PSI MOTOR WORK. ECD VERY STEADY BETWEEN 9.74-PPG AND 9.78-PPG. IA/OA=960-PSI/30-PSI. AT END,IA/OA/PVT/ECD=952-PSI/29-PSI /306-BBLS/9.78-PPG. 08:45 - 10:00 1.25 DRILL P PROD1 WIPER TRIP FROM 12,700'. 'CIRCULATE AT 1.8-BPM/3600-PSI. ECD AT START=9.86-PPG. PVT AT START=306-BBLS SEE MINIMAL OVERPULLS WITH LITTLE MOTORWORK FROM 12,240'TO 12,150' SHALE SECTION. REST OF TRIP CLEAN. SHUT DOWN PUMP PASSING THROUGH WINDOW. NO ISSUES. 10:00 - 12:00 2.00 DRILL P PROD1 STOP AT 11,100'AND OPEN EDC. PUMP 10-BBL LO VIS SWEEP FOLLOWED BY 10-BBL HI VIS SWEEP. PUMPING AT 2.3-BPM /3650-PSI TO 3800-PSI(WITH SWEEP COMING UP THE ANNULUS). TIME SWEEPS TO TURN THE CORNER AT 11,080'(EDC DEPTH). POH TO 9000'JETTING LINER&TUBING. MINIMAL INCREASE IN CUTTINGS RETURN WITH SWEEP AND DURING CIRCULATION. RIH FROM 9000'TO 11,100'CONTINUING TO JET AT 2.3-BPM/3700-PSI. 12:00 - 12:30 0.50 DRILL P PROD1 STOP AT 11,100'&CLOSE EDC. FLOW CHECK WELL-NO FLOW. CHANGE OUT JACK ON LEFT SIDE OF SHAKER. 12:30 - 12:45 0.25 DRILL P PROD1 LOG TIE IN TO RA TAG. APPLY+6' CORRECTION. IA/OA=948-PSI/33-PSI. 12:45 - 13:30 0.75 DRILL P PROD1 WIPER FROM WINDOW TO TD. CIRCULATE AT 1.4-BPM/2700-PSI. CLEAN TRIP TO 12,700' Printed 7/9/2012 1:26:01 PM North America -ALAS - - Page 31 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°1744.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:30 - 16:00 2.50 DRILL P PROD1 DRILL AHEAD FROM 12,700'TO 12,850'. FREE SPIN=1.61-BPM/3050-PSI. DRILL AHEAD WITH 1 -3K-LBS DHWOB AND 150-500-PSI MOTOR WORK. MUD WEIGHT IN AND OUT=8.61-PPG. IA/OA/PVT/ECD AT START=950-PSI/ 33-PSI/339-BBLS/9.77-PPG. IA/OA/PVT/ECD AT END=950-PSI/32-PSI/ 335-BBLS/9.76-PPG. 16:00 - 17:00 1.00 DRILL P PROD1 WIPER TRIP TO WINDOW FROM 12,850'. NO ISSUES ON TRIP TO WINDOW. CIRCULATE AT 1.8-BPM/3600-PSI. 17:00 - 17:45 0.75 DRILL P PROD1 _WIPER TRIP FROM WINDOW TO 12,850'. CIRCULATE AT 1.6-BPM/3200-PSI. HOLD KICK WHILE TRIPPING DRILL&AAR. CTS SUPERVISOR DETECTED SIMULATED PIT GAIN IMMEDIATELY&RESPONDED APPROPRIATELY. EXCELLENT COMMUNICATION BETWEEN RIG CREW& LEADERSHIP TEAM. SCS NOTIFIED PAD OPERATOR. DISCUSSED PATH FORWARD AFTER WELL IS SHUT IN. CONTINUE WIPER TRIP TO TD. SEE 5K-LB SET DOWN AT 12,203'AND CONTINUE TO BOTTOM WITHOUT ISSUE. 17:45 - 18:00 0.25 DRILL P PROD1 DRILL AHEAD FROM 12,850'. FREE SPIN=1.58-BPM/3150-PSI. CIRC P=3,550PSI/WOB=2K LBS/PVT= 330BBLS/ROP=80FT/HR. 18:00 - 20:00 2.00 DRILL P PROD1 TAKE SCR'S: PUMP#1: PUMP#2: 1.6 BPM-3,256 PSI-74 SPM1.6 BPM-3,170 PSI-71 SPM 1.0 BPM-2,090 PSI-46 SPM1.0 BPM-2,054 PSI-44 SPM 0.5 BPM-1,428 PSI-22 SPM0.5 BPM-1,428 PSI-21 SPM 20:00 - 21:10 1.17 DRILL P PROD1 DRILLING AHEAD WITH STEADY ROP BETWEEN 50-100 FT/HR AND PUMP AT 1.60 BPM WITH CONSTANT CIRC PRESSURES OF —3,500 PSI.PERFORM REGULAR SHORT& BHA-WIPER TRIPS TO AVOID SOLIDS BUILDING UP. WOB=1.95K LBS/ECD=9.80 PPG IA=957 PSI/OA=37 PSI 21:10 - 22:00 0.83 DRILL P PROD1 PUMP 2OBBLS LO-VIS PILL,FOLLOWED BY 2OBBLS HIGH-VIS PILL AS A WIPER PILL FOR UPCOMING WIPER TRIP TO WINDOW. 22:00 - 00:00 2.00 DRILL P PROD1 PERFORM 2ND 150'WIPER TO WINDOW. WHEN PILLS COME ACROSS THE SHAKER, CANNOT NOTICE ANY INCREASE IN DRILL-CUTTINGS. 6/17/2012 00:00 - 00:20 0.33 DRILL P PROD1 COMPLETE 2ND 150'WIPER TO WINDOW. Printed 7/9/2012 1:26:01 PM • North America ALASKA BP . Page 32 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 !X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:20 - 03:30 3.17 DRILL P PROD1 DRILLING AHEAD THE 3"LATERAL HOLE. SLOW DRILLING PROGRESS WITH WEIGHT TRANSFER-AND HOLE CLEANING ISSUES WHICH REQUIRE REGULAR BHA-AND SHORT WIPER TRIPS. ROP RANGES BETWEEN—20 AND 40 FT/HR. AT 1.65 BPM CIRC PRESSURE IS 3,600 PSI. WOB=1.7 K LBS/ECD 9.8 PPG/IA=960 PSI/ OA=40 PSI. 03:30 - 04:00 0.50 DRILL P PROD1 ++++++++PERFORM COMPLEX'KICK WHILE DRILLING"-DRILL++++++++ SIMULATED THAT INCREASED RETURNS REQUIRED A FLOW-CHECK ON THE WELL.AS THE WELL WAS CONFIRMED TO BE FLOWING.THE PACK-OFF'S WERE PRESSURED UP,THE CHOKE-HCR CLOSED AND THE WELL LINED UP TO THE CLOSED CHOKE.A PRESSURE GAUGE WAS INSTALLED TO THE LUBRICATOR AND A SIWHP OF 300PSI WAS READ.WITH THAT INFORMATION,THE PRESSURE WAS EQUALIZED ACROSS THE CHOKE-HCR AND THE HCR WAS SUBSEQUENTLY OPENED UP. NEXT,THE MUDPUMP#2 WAS ROLLED TO CONFIRM THE PRESSURE INSIDE THE COIL. 1,000PSI IN ADDITION TO THE 0.5BPM-SCR WAS NOTED AND THE DECISION WAS MADE TO CLOSE THE UPPER 2"COMBIS. HOWEVER IN THE PROCESS OFF CLOSING THE RAM,A LEAK DEVELOPED ON THE"CLOSE"LINE OF THE RAM.CONSEQUENTLY, IT WAS DECIDED TO CLOSE THE LOWER 2"COMBIS. PHYSICALLY, IT WAS THEN CHECKED IF A) ENOUGH SPARES WERE KEPT ON THE RIG TO REPAIR THE HYDRAULIC LINE AND B)IT WAS SIMULATED TO MAKE UP A PRESSURE GAUGE TO THE 1/2"NPT-CONNECTION ON THE WING VALVE TO BE ABLE TO MONITOR SIWHP PRESSURE.THIS CONCLUDED THE DRILL. GOOD PERFORMANCE BY THE CREW AS EVERYBODY KNEW WHAT TO DO AND THE DRILLER&TP REACTED SATISFYINGLY TO ALL SCENARIOS CONFRONTED WITH. 04:00 - 05:00 1.00 DRILL P PROD1 DRILLING IS GOING AHEAD WITH SLOW PROGRESS.THOROUGH HOLE CLEANING IS REQUIRED AND SHORT WIPER TRIPS ARE PERFORMED IN REGULAR INTERVALS.ONCE BACK TO BOTTOM,CAN DRILL AHEAD AT 25- 50 FT/HR. 05:00 - 05:45 0.75 DRILL P PROD1 DECIDE TO POOH IN ORDER TO JET TANGENT SECTION IN 4-1/2"TBG. FLOWCHECK WELL-OBTAIN GOOD NO FLOW. 05:45 - 06:30 0.75 DRILL P PROD1 POOH WITH BHA#9, PUMPING AT MAX RATE OF 1.8 BPM. 06:30 - 07:00 0.50 DRILL P PROD1 PUMP 20BBLS LO-VIS PILL FOLLOWED BY BBLS HI-VIS PILL. PULL THROUGH WINDOW WITHOUT ISSUE. Printed 7/9/2012 1:26:01 PM • North America -ALASKA- BP . Page 33 of 39 Operation Summary Report Common Well Name:C-27 1 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 09:45 2.75 DRILL P PROD1 FLOW CHECK WELL-STATIC. OPEN EDC&ESTABLISH CIRCULATION AT 2.2.-BPM/3500-PSI. POH,JETTING LINER&TBG. AS CIRC PRESSURE ALLOWS, INCREASE RATE TO 2.3-BPM/3550-PSI ABOVE 4-1/2"X 5-1/2"XO. -SEE MINIMAL INCREASE IN CUTTINGS WITH LO-VIS SWEEP BUT 5- 10%INCREASE AHEAD OF HI-VIS SWEEP. BENCH TEST BHI DUAL FLOAT SUB TO 250-PSI/3500-PSI FOR 5-CHARTED MIN PER TEST. GOOD TESTS. MAKE 500'SURFACE JOG. 09:45 - 10:30 0.75 DRILL P PROD1 STOP AT 200'AND FLOW CHECK WELL- STATIC HOLD PJSM ON LD BHA. DISCUSS SLIPPERY CONDITIONS ON RIG FLOOR&IN PIPE SHED DUE TO RAIN. REVIEW JOB STEPS WITH NEW DRILLER, HIGHLIGHT BHA LENGTH AND WELL CONTROL CONSIDERATIONS. UNSTAB INJECTOR AND SET BACK OVER CIRC HOLE. .LD BHA#9. MOTOR APPEARS IN GOOD CONDITION. GRADE BIT 4-3-WT-A-X-I-CT-PR 10:30 - 11:00 0.50 DRILL, P PROD1 MU BHA#10 WITH NEW 2.7"X 3"HYC DURAFORCE CUTTER BIT WITH PLUGGED WING JET,2-3/8"LS MOTOR WITH 1.1-DEG AKO,AGITATOR,AND DUAL FLOAT SUB. OAL =77.72' PU INJECTOR, MU COIL TO BHA AND STAB ON WELL. IA/OA=560-PSI/40-PSI. 11:00 - 11:30 0.50 DRILL P PROD1 TEST QTS TO 250-PSI/3500-PSI FOR 5-MIN PER TEST. SURFACE TEST AGITATOR AT 1.3-BPM/ 3100-PSI-GOOD TEST. RIH TO 265'TO GET PRESSURE TO EQUALIZE AND OPEN EDC. ESTABLISH CIRCULATION AT 2.14-BPM/ 3250-PSI. IA/OA=542-PSI/37-PSI. 11:30 - 14:00 2.50 DRILL P PROD1 RIH WITH BHA#10 TO 11,100' CIRCULATE AT 2.1-BPM/3330-PSI THROUGH OPEN EDC. 14:00 - 14:30 0.50 DRILL P PROD1 CLOSE EDC&RIH. LOG TIE IN TO RA TAG. APPLY-25.5' CORRECTION. 14:30 - 15:15 0.75 DRILL P PROD1 CONTINUE TO RIH,CIRCULATE AT 1.4-BPM/ 3500-PSI. SEE 5K-LB SET DOWN AT 12,226'. DROP PUMP RATE AND POP THROUGH. NO OTHER ISSUES NOTED ON TRIP TO BOTTOM. TAG TD AT 13,107'. PU AND OBTAIN SLOW PUMP RATES. IA/OA=935-PSI/40-PSI. Printed 7/9/2012 1:26:01PM North America ALASKA- BPg Page 34 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type. RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date. 6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:15 - 16:15 1.00 DRILL P PROD1 DRILL AHEAD FROM 13,107'TO 13,186'AT 80 90FT/HR ROP. FREE SPIN= 1.4-BPM/3400-PSI. DRILL AHEAD STEADILY WITH 250-450-PSI MOTOR WORK AND 1.2-3K-LBS DHWOB. NO VIBRATION SEEN DRILLING AHEAD. MAKE 200'WIPERS-EVERY 50'DRILLED. AT START, IA/OA/PVT/ECD=947-PSI/ 39-PSI/328-BBLS/9.79-PPG. MW IN AND OUT=8.62-PPG. 16:15 - 16:45 0.50 DRILL P PROD1 HOLD KICK WHILE DRILLING DRILL. CREW RESPONSE EXCELLENT. SIMULATED REMOTE PANEL FAILURE WHEN FUNCTIONING HCR. DRILLER AND MOTORMAN IDENTIFIED SUFFICIENT ACCUMULATOR PRESSURE TO SIMULATE FUNCTION OF HCR&SECURE WELL. GATHERED RIG TEAM FOR AAR. CONTINUED DISCUSSION ON HOW TO SECURE WELL IN EVENT OF POWER FAILURE. REVIEWED COMPLEX DRILL HANDBOOK DISCUSSION ABOUT POWER FAILURE DURING WELL .CONTROL OPERATIONS. GOOD CREW PARTICIPATION. ALSO IDENTIFIED DRILLER'S RADIO IS VERY HARD TO HEAR- WILL REPLACE MIC AND SEE IF THAT SOLVES THE PROBLEM. 16:45 - 18:30 1.75 DRILL P PROD1 DRILL FROM 13,186'. FREE SPIN=1.46-BPM/3580-PSI. CONTINUE TO DRILL WITH SAME PARAMETERS AS ABOVE. MAKE SHORT WIPERS PERIODICALLY AND AT LEAST EVERY 50'DRILLED. MAKE 300'WIPER TRIP FROM 12,230'. PUMP 20-BBL HI VIS SWEEP AT 13,200'. AT END. IA/OA/PVT/ECD=930-PSI/40-PSI /325-BBLS/9.8-PPG. 18:30 - 21:15 2.75 DRILL P PROD1 PERFORM 1ST 150'WIPER TRIP TO WINDOW. OBSERVE MAYBE A SLIGHT INCREASE IN CUTTINGS WHEN THE HI-VIS PILL RETURNS OVER SHAKER. NOTICE INDICATION FOR TAR IN SAMPLES. GEO ADVISES TO COME UP FROM 8,949'-50' ND SS TO-8,946'TVD SS. 21:15 - 23:15 2.00 DRILL P PROD1 BACK TO BOTTOM,CONTINUE DRILLING AHEAD AT ROP OF 30-50FT/HR. CIRC PRESSURE=3,650 PSI/WOB=1.5K LBS / ECD=9.83 PPG MM IN= 1.5 BPM, MM OUT-1.5 BPM ONWARDS FROM-13,280', NOTICE A GRADUAL DROP IN ROP DOWN TO 20 40FT/HR.HOLE CONDITIONS REMAIN CHALLENGING AND REGULAR WIPER TRIPS ARE REQUIRED. MEANWHILE START EMPTYING OUT PITS#1 AND#3 FOR MUD CHANGE. 23:15 - 00:00 0.75 DRILL P PROD1 DRILLING AHEAD TO 13,345'. Printed 7/9/2012 1:26:01PM North America -ALASKA- BP • Page 35 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:0701744.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/18/2012 00:00 - 01:30 1.50 DRILL P PROD1 DRILLING AHEAD FROM 13,345'. DIRECTIONAL DRILLER INFORMS THAT HE IS HAVING ISSUES GETTING GOOD SURVEYS- LAST GOOD SURVEY WAS SHOT AT 13,305' (13,260'SURVEY DEPTH).TAKE CHECK-SHOTS DURING BHA-WIPER BUT INCONCLUSIVE. 01:30 - 02:30 1.00 DRILL P PROD1 DRILL TO 13,400'.DRILL AHEAD WITH-9K LBS ON CT WEIGHT, 0.83K LBS WOB,3,856PSI CIRC PRESSURE AT 1.58 BPM ON IN MICROMOTION AND ROP OF 22 FT/HR. IA= 791 PSI/OA=33 PSI. OLD MUD/NEW MUD-INTERFACE COMES UP TO SURFACE. HOWEVER NEW MUD DOES NOT SEEM TO HAVE INCREASED THE ROP,. BUT HAS IMPROVED COIL-SLIDING. MEANWHILE GEO CALLS AND INFORMS THAT 13,300'-SAMPLE SHOWS 80%-900/0 CHERT AND TRACES OF PYRITE. 02:30 - 05:50 3.33 DRILL P PROD1 START 2ND 150'WIPER TRIP TO WINDOW, -TAKING CHECK-SHOTS TO VERIFY THAT SURVEY-TOOL IN BHA IS WORKING CORRECTLY. CHECK-SHOTS AT 13,395'!13,365'!13,335' ARE SLIGHTLY OUT OF SPEC,BUT SHOTS AT 13,305/13,275'/11,580'MATCH EARLIER SURVEYS WHICH INDICATES THAT THE SURVEY-TOOL IS WORKING FINE.SEND DATA TO BAKER-TOWN ENGINEER FOR VERIFICATION. BAKER-TOWN ENGINEER CONFIRMS SIGNIFICANT MAGNETIC INTERFERENCE. CALL BP-TOWN ENGINEER AND AGREE TO DRILL AHEAD,TAKING REGULAR CHECK-SHOTS AND MONITORING THE SURVEY-QUALITY. MEANHWILE GEO DESCRIBES THAT THE 13,300'-SAMPLE CONTAINS 80%CHERT,THE 13,350'-SAMPLE 10%CHERT AND THE 13,400'-SAMPLE 80%CHERT. 05:50 - 07:00 1.17 DRILL P PROD1 DRILL AHEAD FROM 13,400'.DRILL WITH rrrIHIS ROP,3944PS1 CIRC PRESSURE (FREESPIN:3,621 PSI) ROP RAPIDLY DIMINISHING TO 20-30-FPH. DD STEERING AWAY FROM B-28 AND TAKING CHECK SHOTS EVERY 5'TO ASSESS SURVEY ACCURACY. MAGNETIC INTERFERENCE IS DECREASING. PAST 13,400'BEGIN NOTICING LOSS RATE OF5-6-BPH. 07:00 - 07:30 0.50 DRILL P PROD1 MAKE 500'WIPER TRIP FROM 13,425'TO 12,925. CIRCULATE AT 1.46-BPM/3640-PSI. OBTAIN SLOW PUMP RATES. MINOR SET DOWNS FROM 13,400'TO 13,425. Printed 7/9/2012 1:26:01 PM North America -ALASKA- BP Page 36 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:30 - 09:30 2.00 DRILL P PROD1 DRILL AHEAD FROM 13,425'TO 13.475'. FREE SPIN AT 1.5-BPM/3650-PSI. AT START,IA/OA/PVT/ECD=887-PSI/ 33-PSI/303-BBLS/9.77-PPG. DRILL AHEAD WITH 500-2K-LBS DHWOB AND 100-300-PSI MOTORWORK. 09:30 - 10:00 0.50 DRILL P PROD1 -MAKE 500'WIPERFROM 13,475'. CIRCULATE AT 1.5-BPM/3600-PS( HAVE TO WORK BACK TO BOTTOM VARYING PUMP RATE AND RUNNING SPEED. 10:00 - 11:00 1.00 DRILL P PROD1 DRILL AHEAD FROM 13,475'TO 13500'. FREEV5IN= 1.5-BPM/3600-PSI. MAKE WIPER FROM 13488'AND SEE SIMILAR CHALLENGES GETTING BACK TO BOTTOM. DRILLING CHALLENGING WITH INCREASING WEIGHT TRANSFER ISSUES. MINIMAL CUTTINGS OBSERVED ACROSS SHAKER. ELECT TO MAKE WIPER TRIP 50'EARLY. LOSS RATE CONTINUES AT 6-BPH. AT END,IA/OA/PVT/ECD=900-PSI/33-PSI /289-BBLS/9.81-PPG. 11:00 - 12:30 1.50 DRILL P PROD1 WIPER TRIP TO WINDOW. CIRCULATE AT 1.56-BPM/3950-PSI. ORIENT TO LOWSIDE. SEE SLIGHT OVERPULLS IN 12,200'SHALE SECTION, OTHERWISE CLEAN TRIP TO WINDOW. 12:30 - 12:45 0.25 DRILL P .PROD1 SLOW PUMP TO MIN RATE AND PULL THROUGH WINDOW. FLOW CHECK WELL-NO FLOW. OPEN EDC&ESTABLISH CIRCULATION. 12:45 - 14:45 2.00 DRILL P PROD1 PUMP 20-BBL HI VIS PILL AT 2.2-BPM/ 3700-PSI. WIPER UP TO 9000'. NO INCREASE IN CUTTINGS NOTED WITH HI VIS PILL RETURNING. WIPER BACK DOWN TO 11,100'AT SAME RATE. 14:45 - 15:15 0.50 DRILL P PROD1 CLOSE EDC,PASS THROUGH WINDOW WITHOUT ISSUE. LOG TIE IN TO RA TAG. APPLY+11.5'CORRECTION. IA/OA=870-PSI/35-PSI. 15:15 - 16:00 0.75 DRILL P PROD1 WIPER BACK TO 13,500'. CIRCULATE AT 1.4-BPM/3360-PSI. SEE SHALE AT 13,400'AND ABLE TO WORK TO BOTTOM. LOSSES FOR WIPER TRIP=24-BBLS. Printed 7/9/2012 1:26:01 PM • North America ALASKA- BP • Page 37 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 17:30 1.50 DRILL P PROD1 DRILL_AHEAD FROM 13,500'. FREE SPIN= 1.43-BPM/3570-PSI. DRILL AHEAD WITH IMPROVED WEIGHT TRANSFER. MAKE 200'WIPER TRIP FROM 13,523'AND HAVE TO WORK TO GET BACK TO BOTTOM. DRILL AHEAD TO 13,526'AND MAKE ANOTHER 200'WIPER TRIP. TRY TO WORK DOWN WITH REDUCED PUMP RATE. DRILL TO 13,532'. DISCUSS DRILLING -PERFORMANCE WITH SUPT,ODE,WELLSITE GEO&ASSET. CALL TD. AT START, IA/OA/PVT/ECD=894-PSI/ 35-PSI/264-BBLS/9.84-PPG. AT END, IA/OA/PVT/ECD=922-PSI/35-PSI /256-BBLS/9.87-PPG. 17:30 - 19:45 2.25 DRILL P PROD1 PICK UP FOR FINAL WIPER TRIP TO WINDOW.OBSERVE ONLY A FEW MINOR OVERPULLS ON THE WAY OUT. 19:45 - 20:40 0.92 DRILL P PROD1 PERFORM TIE-IN TO RA-TAG AND APPLY+2.5' DEPTH-CORRECTION. RUN BACK IN HOLE AT 22.5FT/MIN. MICROMOTION READ 1.44 BPM ON IN-MM AND 1.45 BPM ON OUT-MM, INDICATING LOSSES OF APPROX.5BBLS/HR.IA=875 PSI / OA=33 PSI. WHILE RUNNING IN HOLE, NOTE THAT AT: 12,150'-NOTE"BOBBLE"ON THE CT WEIGHT INDICATOR.TROUBLESOME SECTIQN, CONTINUES DOWN TO 12,200,' 12,250'-OBSERVE TIGHT HOLE 20:40 - 22:00 1.33 DRILL P PROD1 REAM THE INTERVAL AROUND 12,250'. RUN BACK IN HOLE AND SIT DOWN AT 12,210'. PICK UP AND RUN PAST DOWN TO 12,320'WITHOUT ISSUES. CONTINUE RUNNING IN HOLE BUT AT: 12,300'-START SEEING SLIGHT MOTOR WORK 12,350'-PICK UP FOR ADDITIONAL REAMING OF THE SECTION 12,250'-WHILE PICKING UP, NOTICE—20K OVER-PULL TO—60K ON CT WEIGHT INDICATOR TURN AROUND AND RUN IN HOLE AGAIN. HOWEVER AT: 13,395'-SIT DOWN AGAIN.PICK UP FOR FURTHER REAMING 22:00 - 22:20 0.33 DRILL P PROD1 STOP AT 13,048'TO RE-ADJUST GOOSENECK. 22:20 - 23:00 0.67 DRILL P PROD1 RUN IN HOLE AGAIN.AT: 13,406'-SIT DOWN AGAIN.PICK UP TO 13,000'AND REAM.STILL SEE"BUBBLES"ON THE CT WEIGHT INDICATOR 13,450'-SIT DOWN AND CLEAN SECTION. KEEP WORKING COIL.HOWEVER HAVE TO WORK COIL AND REAM ALL THE WAY DOWN TO TD Printed 7/9/2012 1:26:01 PM • North America -ALASKA- BP Page 38 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/15/2012 End Date:6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:00 - 23:35 0.58 DRILL P PROD1 SIT DOWN JUST ABOVE TD.THE FULL SiECTION BETWEEN 13.450'AND 13.532'IS PRETTY TIGHT THEREFORE DECIDE TO DO IQORE REAMING OF THE SECTION. ,REAM HOLE AND TAG TD AGAIN AT 13,529'. 23:35 - 00:00 0.42 DRILL P PROD1 PICK UP FOR FINAL TIE-IN TO RA-TAG. 6/19/2012 00:00 - 00:45 0.75 DRILL P PROD1 CONTINUE PICKING UP FOR FINAL TIE-IN TO RA-TAG.NOTICED SLIGHT OVERPULL AT 12,250'. 00:45 - 01:20 0.58 DRILL P PROD1 RE-TIE TO RA-TAG AT 11,145'AND APPLY A +4.5'CORRECTION. RUN BACK IN HOLE AT 30FT/MIN. MICROMOTION SHOWS 1.45 BPM ON IN-MM AND 1.49 BPM ON OUT-MM, INDICATING LOSSES OF APPROX.5BBLS/HR. IA=900 PSI / OA=34 PSI. 01:20 - 03:00 1.67 DRILL P PROD1 CONTINUE RUNNING IN HOLE. DESPITE ALL REAMING-EFFORTS, LAST 100'ABOVE TD STILL ARE"RATTY". RE-TAG TD AT 13,534'. 03:00 - 04:45 1.75 DRILL P PROD1 DECIDE TO SPEND MORE TIME -HOLE-CONDITIONING OF THE INTERVAL BETWEEN 13,400'AND 13,534'TO IMPROVE HOLE CONDITIONS.PERFORM PASSES WITH TOOLFACE IN AS-DRILLED POSITION,AT LOW-SIDE,120DEG LOHS AND 45DEG ROHS. NOTICE THAT LOSSES VARY BETWEEN 3 BBLS/HR AND 6 BBLS/HR. 04:45 - 06:10 1.42 DRILL P PROD1 PERFORM DOWN-PASS FROM 13,400'TO TD AND FINALLY SEE ACCEPTABLE HOLE-CONDITIONS. MIX BEADS INTO PIT#4 AND PUMP 25BBLS LINER PILL INTO COIL. 06:10 - 07:30 1.33 DRILL P PROD1 PILL EXITING BIT. POH,LAYING IN LINER RUNNING PILL OF NEW 8.5-PPG POWERPRO MUD WITH 1.5-PPB ALPINE BEADS. HOLE IN VERY GOOD CONDITION. PULL THROUGH WINDOW WITHOUT ISSUE. IA/OA=780-PSI/34-PSI. 07:30 - 08:00 0.50 DRILL P PROD1 FLOW CHECK WELL-NO FLOW. LINE UP BACK ON HIGH PRESSURE SCREENS IN REEL HOUSE(BYPASSED FOR PUMPING BEADS). 08:00 - 10:30 2.50 DRILL P PROD1 POH WITH BHA#10. PAINT EOP FLAGS AT 9800'EOP(WHITE)AND 7400'EOP(YELLOW). CIRCULATE AT 2-BPM/3880-PSI. MAKE 500'JOG AT SURFACE. FLOW CHECK WELL-NO FLOW. ATTEMPT TO CLOSE EDC-EDC STUCK PARTIALLY OPEN. 10:30 - 11:15 0.75 DRILL P PROD1 UNSTAB INJECTOR&SET BACK OVER CIRC HOLE. BLOW DOWN AND LD BHA#10. W:15 - 12:30 1.25 DRILL P PROD1 BHA OOH SLB INSPECTING TRACTION MOTOR Printed 7/9/2012 1:26:01PM North America-ALASKA- BP • Page 39 of 39 Operation Summary Report Common Well Name:C-27 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/15/2012 End Date: 6/19/2012 X3-011 WD(2,419,001.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:07017'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING©72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 13:00 0.50 DRILL P PROD1 SEAL ELINE,MU BTT CTC-PULL;TEST TO 40K,GOOD PULL TEST-PRESSURE TEST TO 4K,GOOD PRESSURE TEST 13:00 - 14:00 1.00 DRILL P PROD1 MU M2 JTS OF PH6 TO PUMP OUT SLACK PUMP SLACK OUT PUMPED 240'OF SLACK OUT(100%) 14:00 - 14:50 0.83 DRILL P PROD1 PUMP 3/4"DRIFT BALL 14:50 - 15:15 0.42 DRILL P PROD1 BALL RECOVERED,SET INJECTOR ON ITS LEGS 15:15 - 16:20 1.08 DRILL P PROD1 GREASE BLOCKS AND PREP FLOOR TO RUN LINER Printed 7/9/2012 1:26:00PM North America -ALASKA- BP Page 1 of 14 Operation Summary Report Common Well Name:C-27 ffiY� AFE No u„ Event Type:COM-ONSHORE(CON) Start Date: 6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070017'44.049"9 Long: 0148°40'08.72.4"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/19/2012 16:20 - 16:50 0.50 CASING P RUNPRD PJSM TO MU LINER VERIFY LINER SUMMARY 16:50 - 20:00 3.17 CASING P RUNPRD MU 2-3/8"LINER PROGRAM AS PER_ WELL ANS:__` PL —UIDE SHOE,FLOAT COLLAR,1 JT 2-3/8"STL LINER W/CEMETRALIZER,FLOAT COLLAR, PUP JT, BAKER LATCH COLLAR, PUP JT,STAGE COLLAR,107 JTS 2-3/8"STL LINER W/CEMETRALIZERS,2 PUP JTS,3-1/2" 'CENTRALIZER, PUP JT,DEP SLEEVE,3.70" - FLUTED SCOOP GUIDE. DRIFT EACH JOINT MADE UP. 20:00 - 20:45 0.75 CASING P RUNPRD CONDUCT KICK WHILE MAKING UP LINER DRILL. CREW RESPONSE TIME 45 SECONDS TO HAVE FLOOR SAFETY VALVE STABBED AND WELL CLOSED IN. CONDUCT AAR. 20:45 - 00:00 3.25 CASING P RUNPRD FILL LINER PER WELL PLAN AFTER AAR. FILL ACROSS TOP TO FILL WELL AND CALCULATE DISPLACEMENT DURING RUNNING LINER. CONTINUE WITH LINER RUNNING PROGRAM. FILL LINER EVERY 35 JOINTS. 6/20/2012 100:00 - 03:30 3.50 CASING P RUNPRD COMPLETE MAKING UP 2-3/8"LINER PROGRAM AS PER WELL PLAN:GUIDE SHOE, FLOAT COLLAR,1 JT 2-3/8"STL LINER W/CEMENTRALIZER,FLOAT COLLAR,PUP JT, BAKER LATCH COLLAR,PUP JT,STAGE COLLAR,107 JTS 2-3/8"STL LINER W/CEMENTRALIZERS,2 PUP JTS,3-1/2" CENTRALIZER,PUP JT,DEP SLEEVE,3.70" FLUTED SCOOP GUIDE. DRIFT EACH JOINT MADE UP. FILL LINER EVERY 35 JOINTS. *NOTE:6 JOINTS WERE PULLED AND REPLACED DUE TO DIFFERENCE IN CEMENTRALIZERS WHICH CAUSED THEM TO SLIP INSIDE OF ELEVATORS. 03:30 - 04:30 1.00 CASING P RUNPRD MAKE UP SELBRT AND RUNNING TOOLS TO LINER ASSEMBLY. STAB ON WITH II4,JECIQR,_PRESSURE TEST QUICK TEST SUB. 04:30 - 06:00 1.50 CASING P RUNPRD RIH WITH LINER. CORRELATE TO WINDOW FLAG WITH A-32'CORRECTION. PUW AT WINDOW 30K. CONTINUE RIH WITH LINER ASSEMBLY. 06:00 - 09:00 3.00 CASING P RUNPRD SET DOWN AT 12157',12475',12695',13045'to 13434' 09:00 - 10:50 1.83 CASING P RUNPRD SET DOWN NO MAKING ANY PROGRESS PAST THIS POINT 10:50 - 11:00 0.17 CASING P RUNPRD TAG CLOSE TO BOTTOM WITHIN 7',CIRC TO ENSURE GUIDE SHOE IS CLEAR THEN PU TO VERIFY TAG DEPTH AND CHECK FOR BALL DROP POSITION 11:00 - 11:40 0.67 CASING P RUNPRD BALL DROP IS 180°OUT,PU WT IS 47K RIH AND TAG 1'SHALLOWER,PU TO BALL DROP POSITION PUMP KCL AS PER WELL PLAN, DROP A 5/8"STEEL BALL AND DISPLACE WITH MUD Printed 7/9/2012 1:26:18PM • North America ALASKA BP • Page 2 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type: COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud DaterTime: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:40 - 12:05 0.42 CASING P RUNPRD 5/8"BALL LAUNCHED WITH KCL THEN SWAPPED BACK TO MUD 11:55 BALL OVER GOOSENECK AT CALCULATED SURFACE VOLUME 14.4 BBLS 12:05 - 12:40 0.58 CASING P RUNPRD 70%COIL VOLUME PUMPED,REDUCE RATE TO LAND BALL ON SEAT 12:40 - 12:50 0.17 CASING P RUNPRD 10 BBLS PAST CALCULATED VOLUME AND NO INDICATION THAT BALL IS ON SEAT. SHUT DOWN THE PUMP TO GREASE CMT LINE PLUG VALVE,CMT VAN CANNOT GET A HIGH PT - 12:50 - 13:05 0.25 CASING P RUNPRD CONTINUE PUMPING TO SEAT BALL 13:05 - 13:10 0.08 CASING P RUNPRD CMT LINE IS PT'S TO>4500 PSI WITH 0 PSI IN 5 MIN 13:10 - 13:25 0.25 CASING P RUNPRD BALL ON SEAT AT 59 BBLS AND SHEARED AT 2950 PSI SHUT DOWN PUMP AND PU TO SEE IF WE ARE RELEASED 13:25 - 14:00 0.58 CASING P RUNPRD FIRST COUPLE OF PICKUP'S WERE QUESTIONABLE BUT 3RD PU GAVE A GOOD INDICATION OF BEING RELEASED -PU WT 25K AT 13516.2' SWAP WELL TO KCL LOOSING-0.2 BPM 14:00 - 15:30 1.50 CASING P • RUNPRD KCL AT THE SHOE AND OUT RATE DROPPED TO 0.8 BPM LOSSES 15:30 - 16:00 0.50 CASING P RUNPRD WELL SWAPPED TO KCL,HOLD PJSM TO BATCH CMT 16:00 - 16:10 0.17 CASING P RUNPRD BATCH CMT 16:10 - 16:30 0.33 CASING P RUNPRD CMT TO WEIGHT,SLB SUP CHECKING CMT LOSSES HAVE REDUCED TO 0.1 BPM Printed 7/9/2012 1:26:18PM • North America -ALASKA- BP • Page 3 of Operation Summary Report Common Well Name:C-27 AFE No Event Type: COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:30 - 18:10 1.67 CASING P RUNPRD START CMT JOB 16:30 1.5 BPM RATE= 1435 PSI 16:32 SWAP TO CMT 16:33 GOOD CMT AT REEL MM,ZERO IN& OUT MM TOTALS 16:45 14 BBLS CMT PUMPED SHUT DOWN. --SEND BIO BACK THROUGH CMT LINE AND BLOW DOWN 16:50 ONLINE WITH RIG PUMP DISPLACING CMT,WITH BIOZAN INCREASING RATE AS PRESSURE PERMITS 17:07 39.5 BBLS AWAY,CMT ALMOST AT THE SELBRT SLOW DOWN PUMP RATE FROM 1.8 BPM 17:09 410 BBLS INCREASE RATE BACK TO 1.8 BPM 17:15 52.2 BBLS AWAY,SHUT DOWN PUMP& PU TO UP 13516'WEIGHT+13'(13503') 17:17 SIDE EXHAUST 5 BBLS, 2.0 BBLS CMT AND 3 BBLS BIOZAN AT 1.5 BPM=1425 PSI WE ARE OUT OF THE LINER 17:21 5.0 BBLS PUMPED,SHUT DOWN PUMP, .OPEN BAKER CHOKE,SET DOWN 10K 17:22 CLOSE BAKER CHOKE TO SHEAR LWP AND ZERO IN MM 17:24 CMT AT THE SHOE,ZERO OUT MM 17:25 LWP SHEARED AT 3200 PSI AT.6 BBLS AWAY,DISPLACE LWP TO BUMP AT 13.0 BBLS AT 1.45 BPM 3750 PSI 17:29 PRESSURE CLIMBING,REDUCE RATE FROM 1.45 TO 1.0 BPM 17:34 REDUCE RATE TO 0.4 BPM TO BUMP PLUG CIRC PSI=3140 PSI 17:38 PLUG BUMPED AT 13.6 BBLS,OUT MM= 11.2 BBLS(BEHIND PIPE) 17:39 PRESSURE UP TO 4100 PSI TO SEAT LWP,GOOD FLAT LINE 17:45 OPEN BAKER CHOKE TO CHECK FLOATS 17:50 GOOD NO-FLOW CHECK ON THE FLOATS,PRESSURE UP TO 700 PSI AND PULL OUT OF THE DEPLOYMENT SLEEVE 17:55 CT PRESSURE DROPPED OFF,STOP AND PUMP 5 BBLS OF BIO ON TOP OF LINER 18:02 5 BBLS OF BIO OUT,PU OUT OF DEPLOYMENT SLEEVE AND SHUT DOWN FOR NO-FLOW CHECK TO POOH TOP OF CEMENT CALCULATED TO BE AT 10,345' 18:10 - 20:30 2.33 CASING P RUNPRD POOH WITH RUNNING BHA. PULL TO 200', FLOW CHECK AND HAVE PJSM ON LAYING DOWN BHA. NO FLOW. 20:30 - 21:30 1.00 CASING P RUNPRD LD BHA. 5/8"BALL RECOVERED. 21:30 - 22:30 1.00 CONDHL P OTHCMP PJSM ON MOBILIZING BHA OFF OF RIG. CLEAR AND CLEAN RIG FLOOR. MOBILIZE CLEANOUT BHA TO RIG FLOOR. Printed 7/9/2012 1:26:18PM 4. North America -ALASKA- BP • Page 4 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 CONDHL P OTHCMP CHANGE OUT TO NEW COIL TUBING CONNECTOR. PULL TEST TO 35K. PRESSURE TEST TO 250 PSI LOW AND 3500 PSI HIGH. PUMP 40 BBLS BIOZAN OVER TO PILL PIT TO SAVE FOR CLEANOUT RUN. PREP EQUIPMENT FOR CLEANOUT RUN. 6/21/2012 00:00 - 01:15 1.25 CONDHL P OTHCMP-PREP TO MAKE UP CLEANOUT RUN. MU 3.80"CLEANOUT BHA. STAB ON WITH INJECTOR. PRESSURE TEST QUICK TEST SUB. 01:15 - 03:00 1.75 CONDHL P OTHCMP RIH WITH CLEANOUT ASSEMBLY. POSSIBLE CEMENT STRINGER AT 9440'. RECEIVE CONFIRMATION FROM SLB LAB THAT CEMENT IS AT 500 PSI COMPRESSIVE STRENGTH. 03:00 - 04:00 1.00 CONDHL P OTHCMP SLOW RUNNING RATE. CONDUCT CLEANOUT WITH MINIMAL MOTOR WORK. TAG DEPLOYMENT SLEEVE AT 10,175' UNCORRECTED DEPTH. PICK UP, RE-TAG AT SAME DEPTH. WORK MILL ABOVE DEPLOYMENT SLEEVE, PUMP DOWN VICOUS BIOZAN PILLS WHILE WORKING STRING. DENSITY INCREASE AND CEMENT ACROSS SHAKERS. RECIPROCATE WITH MILL UNTIL PILL COMPLETELY OUT OF STRING. 04:00 - 06:00 2.00 CONDHL P OTHCMP CHASE PILL UP HOLE WHILE POH WITH CLEANOUT BHA. FLOW CHECK AT SURFACE. 06:00 - 06:30 0.50 CONDHL P OTHCMP CREW CHANGE FLOW CHECK WELL 06:30 - 07:00 0.50 CONDHL P OTHCMP PJSM TO LD BHA AND MU NOZZLE TO JET THE STACK GOOD NO-FLOW 07:00 - 07:30 0.50 CONDHL P OTHCMP REMOVE INJECTOR&LD THE 4-1/2 CLEAN OUT BHA MILL IS IN GAUGE 07:30 - 08:20 0.83 CONDHL P OTHCMP BHA OOH,MU NOZZLE TO JET STACK 08:20 - 09:00 0.67 CONDHL P OTHCMP MADE 3 PASSES ACROSS STACK PU INJECTOR AND SET ON LEGS TO PREP FOR PICKING UP CSH 09:00 - 09:20 0.33 CONDHL P OTHCMP PJSM TO MU LINER CLEAN OUT BHA 09:20 - 11:20 2.00 CONDHL P OTHCMP MU BHA 2-3/8"SAFETY JOINT I-AS 1"CSH PUP ON TOP DRIFT AND SUBS PRIOR MU 11:20 - 13:00 1.67 CONDHL P OTHCMP 20 STANDS RAN,CIRC TO ENSURE CSH IS CLEAR 12:35 20 MORE STANDS RAN,CIRC TO ENSURE CSH IS CLEAR Printed 7/9/2012 1:26:18PM North America-ALASKA- BP , Page 5 of 1 Operation Summary Report Common Well Name:C-27 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12.00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 13:20 0.33 CONDHL P OTHCMP *****KWT DRILL WHILE RUNNING CSH***** SIMULATED PIT GAIN WHILE TRIPPING PIPE. CREW DID A GOOD JOB PICKING UP THE SAFETY JOINT, MAKING IT UP AND DEPLOYING IT THEN SIMULATED SHUTTING IN THE WELL BY CLOSING THE 2-3/8" COMBI'S,TIW VALVE THEN THE KILL HCR. EVERYONE REPORTED FROM THEIR POSITIONS IN ABOUT 3 MIN AND WAITED FOR INSTRUCTIONS.SINCE THE 2-3/8" COMBI'S ARE BELOW THE MUD CROSS I ASKED THE CREW HOW CAN WE MONITOR THE PRESSURE ON THE WELL.THEY SAID WE COULD PUT A GAUGE ON THE WING WHICH IS POSSIBLE BUT I ELECTED TO RU THE HEAD PIN AND PUMP DOWN THE TOOLSTRING UNTIL WE SEE THE LITTLE BUMP IN PRESSURE THEN CALCULATE THE HYDROSTATIC&SURFACE PRESSURE.THE NEXT SCENARIO I GAVE THEM WAS,WE NEED TO KILL THE WELL FROM BOTTOMS UP BECAUSE TOWN DOES NOT WANT TO _BULLHEAD KILL FOR FEAR OF FRACTURING ~OR DAMAGING THE FORMATION SO WHAT DO WE DO NOW.AFTER A COUPLE SUGGESTIONS I TOLD THEM WE NEEDED TO FIGURE OUT OUR BHA LENGTH ABOVE THE FLOOR AND PU EXTRA LUBRICATOR TO ACCOMODATE THE EXTRA LENGTH THEN STRIP DOWN AND TEST THE LUBRICATOR THEN RIH TO DO A BOTTOMS UP KILL. 13:20 - 14:00 0.67 CONDHL P OTHCMP CONTINUE RUNNING CSH 14:00 - 14:55 0.92 CONDHL P OTHCMP ALL CSH RAN,RU TO CIRC TO ENSURE CSH STRING IS CLEAR 14:55 - 15:30 0.58 CONDHL P OTHCMP PU INJECTOR AND MU TO THE BHA PT QTS 15:30 - 18:15 2.75 CONDHL P OTHCMP RIH PUMPING AT MINIMAL RATE. PUMP HI-VIS SWEEP AT LINER TOP. TAG AT 13,522' UNCORRECTED DEPTH. PUMP HI-VIS SWEEP FOLLOWED BY BIOZAN SWEEP AT PBTD. 18:15 - 23:15 5.00 CONDHL P OTHCMP CHASE SWEEPS OUT OF HOLE WHILE PULLING TO LINER TOP. AT LINER TOP. DROP 1/2"BALL TO OPEN CIRC SUB. MAKE SEVERAL SWEEPS PAST LINER TOP. POH AT MAX FLOW RATE. PJSM FOR LAYING DOWN BHA WHILE POH. FLOW CHECK AT 3800'. ALL GOOD. PULL TO SURFACE. 23:15 - 00:00 0.75 CONDHL P OTHCMP POP OFF WITH INJECTOR. STAND BACK AND PREPARE BLOCKS FOR LAYING DOWN BHA. LAY DOWN CROSSOVERS,2 JOINTS OF PH-6, CHECK VALVE ASSEMBLY, DISCONNECT SUB. 6/22/2012 00:00 - 02:00 2.00 CONDHL P OTHCMP STAND BACK 22 STANDS OF 1"CSH WORK STRING IN DERRICK. Printed 7/9/2012 1.26:18PM • North America -ALASKA BP • Page 6 of 14 Operation Summary Report Common Well Name: C-27 AFE No Event Type: COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 02:15 0.25 CONDHL P OTHCMP CONDUCT KICK DRILL WHILE LAYING DOWN 1"WORK STRING. CREW RESPONDED WELL WITH PICKING UP 2-3/8"SAFETY JOINT. STABBING ONTO STRING USING CROSSOVER. RUNNING IN HOLE TO SPACE OUT IN BOP, SIMULATED CLOSING LOWER COMBINATION RAMS ON SAFETY JOINT. CONDUCTED AAR. DISCUSSED WHY STANDING ORDERS REQUIRE CLOSING IN RAMS VERSUS ANNULAR. DISCUSSED PLAN FORWARD IN INSTANCE WHERE LOWER RAMS ARE SHUT. DISCUSSED HOW TO MAKE UP INJECTOR TO STRING FOR KILLING WELL. VERY GOOD CREW INTERACTION. 02:15 - 03:30 1.25 CONDHL P OTHCMP CONTINUE WITH STANDING BACK 1"CSH WORK STRING. 1/2"BALL FOR CIRC SUB RETRIEVED. LD REST OF BHA. 03:30 - 04:45 1.25 CONDHL P 'OTHCMP MAKE UP SWIZZLE STICK BHA. JET STACK OF CEMENT DEBRIS IN PREPARATION TO OPEN DOORS AND INSPECT BOP. 04:45 - 06:00 1.25 CONDHL P OTHCMP STAND BACK INJECTOR,INSTALL NIGHT CAP 06:00 - 07:50 1.83 CONDHL P OTHCMP .TEST 2 BARRIERS TO OPEN BOP DOORS TO -INSPECT RAMS 07:50 - 08:30 0.67 CONDHL P OTHCMP OPEN BOP DOORS AND INSPECT RAMS 08:30 - 09:00 0.50 CONDHL P OTHCMP FUNCTION TEST BOPE FROM OPS CAB 09:00 - 09:15 0.25 CONDHL P OTHCMP PJSM TO SHELL TEST AND TEST LAP 09:15 - 09:55 0.67 CONDHL P OTHCMP SHELL TEST BOPE 09:55 - 10:05 0.17 CONDHL P OTHCMP GOOD SHELL TEST LEAVE 500 PSI ON STACK OPEN MASTER&SWAB TO CHECK FOR PRESSURE PRESSURE DROPPED OFF TO 0 PSI IAP=826 PSI,NO INCREASE WHEN SWAB WAS OPENED ANDA PRESSURE BLED OFF 0 WHP,OPEN CHOKE AND FLUID PACK THE WELL AND STACK 10:05 - 11:00 0.92 CONDHL P OTHCMP PT LAP TO SEE IF WE HAVE GOOD CMT AROUND LINER.THIS IS NOT THE MIT FOR THE LAP JUST FOR INFORMATION PURPOSES ONLY CMT UCA AT 1980 PSI AT TIME OF TEST LOW PT STARTING IAP=825 PSI 10:09 WHP=275 PSI IAP=835 PSI GOOD LOW PT,COME ON LINE AND INCREASE PRESSURE IN STAGES TO KEEP IA BELOW 2500 PSI WHP GOT TO-410 PSI THEN DROPPED OFF TO 275 PSI, IAP ONLY INCREASE-60PSI. WHP STARTING TO CLIMB AGAIN AND IA IS TRACKING AT THE SAME RATE SHUT DOWN PUMP WHP=1516 PSI IAP= 2144 PSI WHP BLED OFF BUT IAP IS NOT,BLEED OFF IA THROUGH CHOKE TO TIGER TANK 11:00 - 11:15 0.25 CONDHL P OTHCMP IAP AT 825 PSI,SHUT IN AND PREP TO SLIP& CUT DRILL LINE 11:15 - 11:30 0.25 CONDHL P ! OTHCMP PJSM TO SLIP&CUT DRILL LINE Printed 7/9/2012 1:26:18PM North America -ALASKA- BP " " " ti� � Page 7 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011WD(1,791,553.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 13:45 2.25 CONDHL P OTHCMP SLIP&CUT DRILL LINE 13:45 - 14:00 0.25 EVAL P OTHCMP PJSM TO MU LOGGING TOOLS 14:15 - 14:30 0.25 EVAL P OTHCMP LOAD LOGGING TOOLS ON THE RIG 14:30 - 17:40 3.17 EVAL P OTHCMP LOAD SOURCE IN LOGGING TOOL AND MU CSH 17:40 - 18:20 0.67 EVAL P OTHCMP PU INJECTOR AND MU TO THE BHA 18:20 - 19:30 1.17 EVAL P OTHCMP RIH WITH LOGGING BHA TO 10,000' 19:30 - 23:00 3.50 EVAL P OTHCMP BEGIN LOGGING DOWN AT 30 FPM TO PBTD. TAG, PU,AND RE-TAG TO CONFIRM UNCORRECTED BOTTOM AT 13,514'. WAIT FOR PERF PILL TO EXIT BIT. BEGIN LOGGING TRIP UP AT 60 FPM. PAINT FLAG ON TRIP OUT. LOG TO 10,000'. 23:00 - 00:00 1.00 EVAL P OTHCMP FLOW CHECK WELL AT 9834'. PAINT WINDOW FLAG AT THIS DEPTH. FLOW CHECK GOOD. CONTINUE WITH TRIP OUT OF HOLE. 6/23/2012 00:00 - 00:45 0.75 EVAL -P OTHCMP POH WITH LOGGING ASSEMBLY. PJSM ON LD BHA. FLOW CHECK AT SURFACE. ALL • -GOOD. 00:45 - 04:00 3.25 EVAL P OTHCMP BREAK OFF WITH INJECTOR. STAND BACK WORK STRING. PJSM ON LAYING DOWN LOGGING BHA. LD BHA. 04:00 - 05:00 1.00 EVAL P OTHCMP SLB LOGGER DOWNLOADING INFORMATION. PJSM ON LOADING PERF GUNS INTO PIPESHED AND MOBILIZING TOOLS TO FLOOR. MOBILIZE EQUIPMENT. 05:00 - 08.40 3.67 EVAL P OTHCMP WAIT ON INTERPRETATION AND APPROVAL OF LOGS FROM TOWN. CLEAR AND CLEAN RIG FLOOR WHILE WAITING. 08:40 - 09:00 0.33 EVAL P OTHCMP CONFORMATION FROM TOWN THAT LOGS ARE GOOD,-16'CORRECTION. PBTD= 13,495.5' TOL= 10147' GEO SAYS TO SHOT PERFS AS PER MEMO PJSM TO MU PERF GUNS 09:00 - 10:00 1.00 EVAL P OTHCMP MU PERF GUNS 10:00 - 11:15 1.25 EVAL P OTHCMP MU CSH 11:15 - 11:40 0.42 EVAL P OTHCMP ****KWT DRILL**** DRILLER SIMULATED A KWT DRILL WITH A 3 BBL GAIN IN PIT#1, PICKED UP THE SAFETY JOINT AND SET IT ACROSS THE BOP'S THEN SIMULATED SHUTTING IN THE WELL WITH THE 2-3/8"COMBI'S,TIW VALVE AND THEN THE HCR.CREWS DID A GOOD JOB PICKING UP THE SAFETY JOINT THEN MOVING TO THEIR STATIONS AND REPORTED BACK WAITING FOR INSTRUCTIONS. GOOD RESPONSE FROM CREW. _ 11:40 - 12:00 0.33 EVAL P OTHCMP CONTINUE MU CSH 12:00 - 12:25 0.42 EVAL P OTHCMP MU INJECTOR TO THE BHA 12:25 - 13:35 1.17 EVAL P OTHCMP RIH Printed 7/9/2012 1.26:18PM North America-ALASKA- BP Page 8 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM 1 Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070017'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:35 - 14:45 1.17 EVAL P OTHCMP CORRECT DEPTH TO EOP FLAG-21.1' CORRECTION (EOP FLAG=6183.63'+3917.85 BHA= 10,101.48') SECOND FLAG AT 7028.81'EOP WASA ON DEPTH 14:45 - 14:55 0.17 PERFOB P OTHCMP TAG BOTTOM AT 13494',PU UPWT IS 31K, TAG AGAIN TAG AT SAME DEPTH, PU TO 31K AND STOP TO CORRECT DEPTH TO 13495.5 PBTD _ 14:55 - 15:05 0.17 PERFOB P OTHCMP PRACTICE PUMP CYCLES 15:05 - 15:20 0.25 PERFOB P OTHCMP START PUMPING SEQUENCE TO FIRE GUNS 15:20 - 17:00 1.67 PERFOB P OTHCMP START PUH SLOW PVT=243 BBLS GUNS FIRED ON DEPTH AT 13490'WHILE MOVING CLOSE CHOKE AND HOLD 100-200 PSI WHP WHILE POOH - 17:00 - 17:30 0.50 PERFOB P OTHCMP ABOVE TOL WITH PERF GUNS,PERFORM 30 MIN FLOW CHECK 17:30 - 20:15 2.75 PERFOB P OTHCMP NO FLOW,COME ONLINE AND CHECK LOSS RATE WELL IS STATIC SWAP WELL TO CLEAN KCL. CONDUCT FLOW CHECK BEFORE PULLING OUT OF HOLE WITH PERF BHA. 20:15 - 22:00 1.75 PERFOB P OTHCMP POH WITH PERF BHA. CONDUCT 30 MIN FLOW CHECK AT SURFACE. PJSM ON LAYING DOWN BHA WHILE CONDUCTING THE CHECK. ALL GOOD. 22:00 - 23:45 1.75 PERFOB P OTHCMP BRING BHA TO SURFACE. POP OFF WITH INJECTOR. LAY DOWN 1"CSH WORK STRING SIDEWAYS. 23:45 - 00:00 0.25 PERFOB P OTHCMP CONDUCT KICK WHILE LAYING DOWN 1" WORK STRING DRILL. CREW STABBED ON SAFETY JOINT, RAN IN HOLE,SIMULATED CLOSING LOWER RAMS. SIMULATED LOSS OF HYDRAULIC PRESSURE AT ACCUMULATOR UNIT. CALLED OUT TO MANUALLY CLOSE LOWER RAMS. DRILLER, WSL AND FLOORHAND WENT DOWN TO ACCUMULATOR UNIT TO MONITOR MOTORMAN GO THROUGH STANDING ORDERS TO USE NITROGEN TO CLOSE LOWER COMB! RAMS. MOTORMAN WENT THROUGH PROCESS CORRECTLY. CALLED TO CELLAR FOR ROUSTABOUT TO LOCK IN LOWER RAMS. CREW RESPONSE TIME FOR ENTIRE DRILL 3 MIN 40 SEC(NO INCLUDING TIME FOR DRILLER AND WSL TO GET TO ACCUMULATOR UNIT). CONDUCT AAR WITH NO PROCESS IMPROVEMENTS NOTED. DID NOTE TO ENFORCE RADIO USE AND CLEAR INSTUCTIONS TO ROUSTABOUT IN CASE OF FAILURE AT ACCUMULATOR. Printed 7/9/2012 1:26:18PM • North America -ALASKA- BP Page 9 of 14 Operation Summary Report • Common Well Name: C-27 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011WD(1,791,553.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/24/2012 00:00 - 00:10 0.17 PERFOB P OTHCMP COMPLETE AAR OF KICK DRILL. FROM PREVIOUS REPORT: CONDUCT KICK WHILE LAYING DOWN 1" WORK STRING DRILL. CREW STABBED ON SAFETY JOINT, RAN IN HOLE,SIMULATED CLOSING LOWER RAMS. SIMULATED LOSS OF HYDRAULIC PRESSURE AT ACCUMULATOR UNIT. CALLED OUT TO MANUALLY CLOSE LOWER RAMS. DRILLER, WSL AND FLOORHAND WENT DOWN TO ACCUMULATOR UNIT TO MONITOR MOTORMAN GO THROUGH STANDING ORDERS TO USE NITROGEN TO CLOSE LOWER COMB! RAMS. MOTORMAN WENT THROUGH PROCESS CORRECTLY. CALLED TO CELLAR FOR ROUSTABOUT TO LOCK IN LOWER RAMS. CREW RESPONSE TIME FOR ENTIRE DRILL 3 MIN 40 SEC(NO INCLUDING TIME FOR DRILLER AND WSL TO GET TO ACCUMULATOR UNIT). CONDUCT AAR WITH NO PROCESS IMPROVEMENTS NOTED. DID NOTE TO ENFORCE RADIO USE AND CLEAR INSTUCTIONS TO ROUSTABOUT IN CASE OF -FAILURE AT ACCUMULATOR. 00:10 - 03:00 2.83 PERFOB P OTHCMP CONTINUE LAYING DOWN 1"CSH WORK STRING. PULL TO MARKER JOINT FOR PULLING PERFORATION ASSEMBLY. PJSM ON LAYING DOWN FIRED PERF GUNS. 03:00 - 05:30 2.50 PERFOB P OTHCMP COMPLETE LAYING DOWN 1"WORK STRING. FIRING HEAD AT FLOOR. BEGIN LAYING DOWN PERFORATION ASSEMBLY. FARR TONGS STOPPED WORKING. TROUBLESHOOT,CANNOT GET OPERABLE. SLB TCP CREW CALLS IN,GETS PERMISSION TO SPIN OUT BY HAND. CONTINUE WITH LAYING DOWN PERFORATING GUNS. ALL GUNS FIRED. MOBILIZE GUNS AND EQUIPMENT OFF OF RIG FLOOR. FILL WELL, LOSSES AT LESS THAN 1/2 BPH. 05:30 - 06:00 0.50 ZONISO P RUNPRD MOBILIZE LINER TOP PACKER EQUIPMENT TO RIG FLOOR. 06:00 - 06:45 0.75 ZONISO P RUNPRD CHANGE DIES IN TONGS,SERVICE TONGS. PREP SLING FOR INJECTOR. 06:45 - 07:30 0.75 ZONISO P RUNPRD CONDUCT CREW CHANGE AND WALKAROUNDS. 07:30 - 07:50 0.33 ZONISO P RUNPRD PJSM TO MU LTP BHA 07:50 - 08:10 0.33 ZONISO P RUNPRD VERIFY PACKER DOES NOT HAVE A TEST BALL ON SEAT,WALK THROUGH BHA WITH BAKER REP ALL IS GOOD,MU BHA 08:10 - 08:45 0.58 ZONISO P RUNPRD PU INJECTOR AND MU COIL TO THE BHA PT THE QUICK TEST SUB 08:45 - 12:25 ' 3.67 ZONISO P RUNPRD RIH AT 80 FPM SLOWING DOWN TO 10 FPM THROUGH ALL JEWELERY Printed 7/9/2012 1:26:18PM North America -ALASKA- BP • Page 10 of 14 Operation Summary Report Common Well Name:C-27 I AFE No Event Type: COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:25 - 14:10 1.75 ZONISO P RUNPRD WEIGHT CHECK TO SET LTP=25.5K 10174.0'CT PRESSURE INCREASE,STINGER IS IN THE DEPLOYMENT SLEEVE 10181.0'DEPTH WITH 10K DOWN 10174.5'PU WEIGHT DEPTH,UP WT=25K,PU TO BALL DROP POSITION AND 10152.8'DROP 5/8"STEEL BALL 13:00 BALL OVER GOOSENECK AT 10.6 BBLS REDUCE RATE TO 0.5 BPM 113:25 25.6 BBLS BALL ON SEAT,OPEN BAKER CHOKE AND RIH TO SPACE OUT 13:30 TAG SAME DEPTH WITH 10K DOWN, PU TO 25K+1'TO 10173.5' 13:35 PT THE STINGER SEALS IAP=792 PSI CTP=0 PSI 13:45 IAP=2111 PSI WHP=1498 PSI CTP=0 PSI 13:50 GOOD TEST ON STINGER SEALS,LOST —20•.PSI IN 5 IN 13:55 COME ONLINE DOWN THE COIL TO SET SLIPS AT 2500 PSI.SET 10K DOWN ON PACKER AND OPEN BAKER CHOKE .14:00 BLED OFF,SET DOWN TO 10K AGAIN, DEPTH IS 10179'4 PU TO UP WT TO TEST THE PACKER 14:10 - 15:00 0.83 ZONISO P RUNPRD PERFORM 5 MIN LOW PT,GOOD LOW PT TXIA COMMS,TRY TO ACHIEVE 2400PSI ON WH BUT DO NOT EXCEED 3000 PSI ON IA SHUT DOWN THE PUMP AT 3000 PSI ON THE IA,READI ii - • . . _.• T CHART MAXALLOWABLE PRESSURE LOSS=240 PSI FIRST 15 MIN WE LOST 77 PSI SECOND 15 MIN WE LOST 26 PSI WHICH IS LESS THAN 50%OF THE FIRST 15 MIN TOTAL PRESSURE LOSS IN 30 MIN WAS 103 PST-WHICH TS LESS THAN 10-S:OF INITIAL TEST PRESSURE FOR A PASSING MIT ON THE LTP TOP OF DEPLOYMENT SLEEVE IS AT 10134.3' 15:00 - 15:30 0.50 ZONISO P RUNPRD PASSING MIT ON LTP,CALL WTL WITH TEST RESULTS AND WE HAVE HIS PERMISSION TO PROCEED WITH OUR OPERATIONS BLEED OFF WH PRESSURE,STACK 5K DOWN ON PACKER THEN PRESSURE UP TO SHEAR OUT 5 UNSUCCESSFUL ATTEMPTS TO SHEAR OUT, PU TO SEE IF WE ARE FREE AND WE ARE. 15:30 - 16:00 0.50 ZONISO P RUNPRD FLOW CHECK WELL,GOOD NO FLOW POOH PVT=151 BBLS Printed 7/9/2012 1:26:18PM North America -ALASKA- BP Page 11 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING©72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 16:30 0.50 ZONISO P RUNPRD ****LOST CIRCULATION DRILL**** SCENARIO-AT 8000'WHILE POOH I SIMULATED LOSING ALL RETURNS AND ASKED THE CREW WHAT WE NEEDED TO DO. INITIAL RESPONSE WAS TO SHUT DOWN THE PUMP AND MONITOR THE WELL. -BUT I EXPLAINED WE STILL NEEDED TO VERIFY THAT WE DID NOT HAVE RETURNS AT THE SHAKER AND NOT JUST A FAILED MICRO-MOTION OR COMMUNICATION TO AN ANNULUS WITH NO RETURNS AT THE SHAKER AND NORMAL ANNULAS PRESSURES,WE SHUT DOWN THE PUMP AND STARTED LOOKING AROUND THE RIG BUT FOUND NO LEAKS I EXPLAINED THAT OUR NEXT STEP WAS TO LINE UP DOWN THE BACKSIDE AND START PUMPING AGAINT A CLOSED CHOKE TO SEE IF IT PRESSURED UP OR IF WE NEEDED TO CATCH UP TO THE FLUID.THE NEXT SCENARIO WAS THAT WHEN WE STARTED PUMPING THERE WAS 0 PSI ON THE WH THEN AFTER-40 BBLS WE .CAUGHT FLUID AND WE WERE ABLE TO KEEP UP WITH IT BUT WE WERE INJECTING AT 3 BPM WITH ONLY 50 PSI AFTER A FEW BBLS THE PRESSURE SHOT UP TO 400 PSI AND LEVELED OFF AT THIS POINT I ASKED THE CREW WHAT HAPPENED AND THEY REALLY DIDN'T KNOW OR WHAT TO DO AT THIS POINT. I EXPLAINED THAT IF THE FORMATION BROKE DOWN OR A FRACTURE OPENED IT LOOKS LIKE IT HEALED UP AND WE PROBABLY LOST ENOUGH HYDROSTATIC PRESSURE TO ALLOW AN INFLUX IN AND WE NEEDED TO RIH TO BOTTOM AND CIRCULATE A BOTTOMS UP THROUGH THE MGS. IF EVERYTHING LOOKED GOOD AFTER THAT THEN WE WOULD FLOW CHECK THE WELL BEFORE POOH AGAIN. 16:30 - 17:15 0.75 ZONISO P RUNPRD CONTINUE POOH 17:15 - 17:30 0.25 ZONISO P RUNPRD PJSM TO LD PACKER RUNNING TOOLS 17:30 - 17:40 0.17 ZONISO P RUNPRD FLOW CHECK WELL 17:40 - 18:00 0.33 ZONISO P RUNPRD GOOD NO FLOW,PU INJECTOR AND LD SETTING TOOL. 5/8"BALL RECOVERED 18:00 - 18:40 0.67 ZONISO P RUNPRD MU 2-STAGE OF STRADDLE PACKER 18:40 - 19:15 0.58 ZONISO P RUNPRD PT QUICK TEST SUB Printed 7/9/2012 1:26:18PM North America -ALASKA- BP • Page 12 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM 1Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: l 0148°40'08.724'W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:15 - 23:00 3.75 ZONISO P RUNPRD RIH WITH 2-STAGE STRADDLE PACKER ASSEMBLY. OBTAIN PUW AT 10,000'. PUW 32K,SOW(RUNNING WEIGHT) 12.4K. CONTINUE TO RUN IN TO 10,100'. SLOW RUNNING RATE UNTIL SEE INCREASE IN PRESSURE FROM 90 PSI TO 220 PSI AT 10,161'. CREEP INTO TAG ON LOCATOR NO-GO SUB. TAG AT 10,166'COIL MD. SET DOWN 10K TO 10,169'TO CONFIRM. PU,SET BACK DOWN FOR SEAL ELEMENT TEST. -LINE UP TO PRESSURE BACKSIDE FOR SEAL ELEMENT TEST. INITIAL IA AT 908 PSI, COIL PRESSURE 0 PSI. SLOWLY PRESSURE UP BACKSIDE TO 1480 PSI. IA ROSE TO 2100. NO PRESSURE ON COIL DURING TEST. BACKSIDE BLED TO 1449 PSI, IA DROPPED TO 2065 PSI. GOOD SEAL ELEMENT TEST 23:00 - 00:00 1.00 ZONISO P RUNPRD PU TO BREAKOVER OF 32K AT 10,165.3'COIL MD. CONTINUE TO PU OUT OF DEPLOYMENT SLEEVE. SET BACK DOWN INTO -. DEPLOYMENT SLEEVE TO CONFIRM SEAL AND TOP OF DEPLOYMENT SLEEVE. SET DOWN 10K AGAIN AT 10,169'. PICK BACK UP WITH 32 K BREAKOVER, PU TO 10,163'. BLEED IA DOWN THROUGH CHOKE SKID TO 905 PSI. -CONTINUE TO PICK UP OUT OF DEPLOYMENT SLEEVE TO 10,140'. DROP 5/8" BALL. BALL OVER GOOSENECK AT 12.1 BBLS. PUMP DOWN AT 1.5 BPM. DECREASE PUMP RATE TO.4 BPM AT 115 PSI WITH 22 BBLS AWAY. CONTINUE TO PUMP UNTIL PRESSURE INCREASE TO 300 PSI. DOWN ON PUMPS, BALL ON SEAT AT 29.1 BBLS AWAY. -RIH WITH ASSEMBLY INTO DEPLOYMENT SLEEVE. SEE WEIGHT DECREASE AT 10,161'. CONTINUE TO SET DOWN UNTIL SET DOWN 10K AT 10,169.9'. --PU TO BREAKOVER OF 32.7K AT 10,161.3'. SET BACK DOWN WITH 10K. PU TO BREAKOVER AT 32K. SET PACKER DEPTH AT COIL MD OF 10,163.6'. -BRING ON PUMPS AND PRESSURE UP TO 2500 PSI. SET DOWN WITH 10K. BLEED PRESSURE,SET DOWN BACK WITH 10K. -BLEED IA DOWN THROUGH CHOKE SKID TO TIGER TANK PRIOR TO CONDUCTING MIT TEST 6/25/2012 00:00 - 00:45 0.75 ZONISO P RUNPRD PRESSURE TEST PACKER TO 250 PSI LOW. GOOD TEST. BRING PRESSURE UP TO HIGH PRESSURE_TEST OF 2400 PSI. BLED 11 PSI FIRST 15 MINUTES, BLED 4 PSI SECOND 15 MINUTES. GOOD TEST. CALL WTL WITH RESULTS,GIVEN PERMISSION TO PROCEED. 00:45 - 01:15 0.50 ZONISO P RUNPRD SET DOWN WITH 10K WHILE BRINGING UP PUMPS. SHEAR TO RELEASE FROM PACKER AT 3350 PSI TO COMPLETE PACKER SETTING PROCESS. PICK UP STRING WITH 150 PSI ON IT, BREAKOVER AT 31K. PICK UP,FLOW CHECK. UNCORRECTED TOP OF KB STRADDLE PACKER AT 10,055.2'. Printed 7/9/2012 1:26:18PM North America ALASKA- BP Page 13 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type: COM-ONSHORE(CON) Start Date:6/10/2012 End Date IX3-011 WD(1,791,553.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:15 - 03:30 2.25 ZONISO P RUNPRD POH WITH PACKER RUNNING ASSEMBLY. FLOW CHECK AT SURFACE. NO FLOW. PULL TO SURFACE. 03:30 - 04:30 1.00 ZONISO P RUNPRD TAGGED UP. POP OFF WITH INJECTOR. LD RUNNING BHA. MOBILIZE TOOLS OFF OF RIG FLOOR. MU NOZZLE ASSEMBLY FOR FREEZE PROTECT. PT CHECK VALVES TO 250 PSI LOW,3500 PSI HIGH. SLB NITROGEN CREW,LITTLE RED HOT OIL DIESEL TANKER ON LOCATION. STAGING WHILE CLEARING AND CLEANING RIG FLOOR AND PRESSURE TESTING 04:30 - 05:00 0.50 WHSUR P OTHCMP STAB ON WITH INJECTOR. PRESSURE TEST QUICK TEST SUB. 05:00 - 05:30 0.50 WHSUR P OTHCMP RIH WITH NOZZLE BHA TO FREEZE PROTECT TO 2500' 05:30 - 06:40 1.17 WHSUR r P OTHCMP FREEZE PROTECT WITH 70 BBLS OF DIESEL TO 2500' CLOSE MASTER&SWAB AND PERFORM LEAK TIGHT TEST NO FLOW,PREP TO BLOW DOWN REEL 06:40 - 06:50 0.17 WHSUR P OTHCMP PJSM TO RU N2 PUMPER 06:50 - 07:05 0.25 WHSUR P OTHCMP RU N2,COOL DOWN AND PT LINE FOR BLOW DOWN 07:05 - 08:15 1.17 WHSUR P OTHCMP PUMP 40 BBLS OF FRESH WATER TO FLUSH COIL OF KCL 08:15 - 08:30 0.25 WHSUR P OTHCMP PJSM TO BLOW DOWN THE REEL 08:30 - 08:40 0.17 WHSUR P OTHCMP PUMP 15 BBLS OF CORROSION INHIBITED WATER PUMP 10 BBLS NEAT METH 08:40 - 09:00 0.33 WHSUR P - OTHCMP BLOW DOWN REEL WITH N2 09:00 - 09:45 0.75 WHSUR P OTHCMP SHUT DOWN N2 AND BLEED OFF PRESSURE 09:45 - 09:50 0.08 WHSUR P OTHCMP PJSM TO REMOVE INJECTOR FROM THE WELL 09:50 - 10:00 0.17 WHSUR P OTHCMP REMOVE INJECTOR 10:00 - 10:15 0.25 WHSUR P OTHCMP PJSM TO RU VALVE CREW LUBRICATOR TO SET BPV 10:15 - 11:00 0.75 WHSUR P OTHCMP LOAD LUBRICATOR ON THE RIG 11:00 - 11:30 0.50 WHSUR P OTHCMP PT LUBRICATOR WITH BPV 11:30 - 12:00 0.50 WHSUR P OTHCMP GREASE CREW SERVICING TREE VALVES 12:00 - 13:00 1.00 WHSUR P OTHCMP BPV SET,RD VALVE CREW 13:00 - 14:50 1.83 BOPSUR P POST PT NIGHT CAP GOOD LOW PT,GO TO HIGH.CAN'T GET A HIGH PT CALL GREASE CREW BACK OUT _ 14:50 - 16:00 1.17 BOPSUR P POST RETEST NIGHT CAP 16:00 - 17:45 1.75 BOPSUR P POST GOOD TEST ON NIGHT CAP,TEST MASTER& SWAB FOR BREAKING CONTAINMENT 17:45 - 22:30 4.75 RIGD P POST PU INJECTOR TO CUT OFF CTC. CHANGE OUT BRASS. INSTALL GRAPPLE, PULL COIL BACK. SECURE COIL. STAGE INJECTOR FOR RE-DRESSING GOOSENECK. PREP TO CHANGE OUT RAMS IN BOP STACK TO 2-3/8" CONFIGURATION. PJSM ON SWAPPING OUT REELS WITH NORDIC,SLB,AND CH2MHILL CREWS. Printed 7/9/2012 1:26:18PM North America -ALASKA- BP Page 14 of 14 Operation Summary Report Common Well Name:C-27 AFE No Event Type: COM-ONSHORE(CON) Start Date:6/10/2012 End Date: X3-011 WD(1,791,553.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/11/1982 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'44.049"9 Long: 0148°40'08.724"W Active Datum:ORIG KELLY BUSHING @72.40ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 RIGD P POST SWAP OUT REELS FROM 2"TO 2-3/8" 6/26/2012 00:00 - 01:00 1.00 RIGD P POST SWAP OUT FROM 2"TO 2-3/8"COIL. SECURE REEL AND INSTALL REEL MOTOR PINS. 01:00 - 01:15 0.25 RIGD P POST PJSM ON RE-DRESSING GOOSENECK AND INJECTOR HEAD. 01:15 - 03:30 2.25 RIGD P POST -RE-DRESS GOOSENECK. INSPECT INJECTOR HEAD, REPLACE PACKOFFS AND BRASS ON INJECTOR. PITS BEING CLEANED AND TRIED IN PREPARATION FOR TUBOSCOPE INSPECTION. 03:30 - 04:00 0.50 RIGD P POST CHANGE OUT RAM CONFIGURATION IN BOP STACK FROM 2"TO 2-3/8"REQUIREMENTS. CONTINUE FINISHING UP RE-DRESS OF GOOSENECK ASSEMBLY ON INJECTOR. STAGING EQUIPMENT FOR MOVE TO C-01. 04:00 - 04:45 0.75 RIGD P POST CHANGE OUT PACKOFFS ON INJECTOR. CONTINUE TO CHANGE OUT RAM CONFIGURATION IN BOP STACK FROM 2"TO 2-3/8"REQUIREMENTS. 04:45 - 07:15 2.50 RIGD P POST WORK ON BOP STACK. STAGE MATS AT C-01. 07:15 - 07:30 0.25._ RIGD P POST PJSM TO PULL COIL ACROSS AND STAB IN INJECTOR 07:30 - 09:00 1.50 RIGD P POST INSTALL GRAPPLE&PULL TEST REMOVE SHIPPING BAR AND CLAMP 09:00 - 09:40 0.67 RIGD P POST PULL PIPE ACROSS&STAB PIPE HANGING UP ON THE 1ST ROLLER, OPEN ROLLER 09:40 - 10:50 1.17 RIGD P POST PIPE STABBED,CUT OFF GRAPPLE AND INSTALL QTS CLOSE TOP ROLLER 10:50 - 11:05 0.25 RIGD P POST SET INJECTOR ON LEGS 11:05 - 12:40 1.58 RIGD P POST ND BOPE 12:40 - 13:00 0.33 RIGD P POST PT TREE CAP AS PER WELL PLAN RU REEL HARDLINE AND PRESSURE BULKHEAD 13:00 - 14:00 1.00 RIGD P POST GOOD LOW PT,GO TO HIGH TEST PUMP BLEW A SEAL,STOP TEST TO REPAIR TEST PUMP RU TRI-PLEX PUMP 14:00 - 15:00 1.00 RIGD P POST TEST TREE CAP 15:00 - 15:45 0.75 RIGD P POST BLEED OFF IS SLOW BUT MORE THAN 10 PSVMIN,CALL GREASE CREW TO SERVICE SWAB VALVE CYCLE VLAVE AND TRY TESTING AGAIN 15:45 - 16:25 0.67 RIGD P POST GREASE CREW SERVICED THE VALVE PT TREE CAP 16:25 - 17:00 0.58 RIGD P POST TREE CAP IS TESTED 17:00 - RIGD P POST RIG RELEASED Printed 7/9/2012 1:26:18PM Midi BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB C Pad C-27 / Lat: 070°17'44.049"9 Long: 0148°40'08.724"W C-27C Survey: MWD Survey Report - Geographic 26 June, 2012 iy NMI -I, BAKER {I . by HUGHES Survey Report Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-27 Project: Prudhoe Bay TVD Reference: 32:27 11/11/1982 00:00 @ 72.40ft(generic drillir Site: PB C Pad MD Reference: 32:27 11/11/1982 00:00 @ 72.40ft(generic drillir Well: C-27 North Reference: True Wellbore: C-27C Survey Calculation Method: Minimum Curvature Design: C-27C Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PBC Pad,TR-11-14 Site Position: Northing: 5,957,218.72ft Latitude: 70°17'22.367 N From: Map Easting: 662,550.03ft Longitude: 148°41'2.797 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 1.24° Well C-27 API No 500292084300 Well Position +N/-S 0.00 ft Northing: 5,959,463.00 ft Latitude: 70° 17'44.050 N +El-W 0.00 ft Easting: 664,357.00 ft Longitude: 148°40'8.724 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 33.00ft Wellbore C-27C API No 500292084303 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (0) (°) (nT) BGGM2011 5/24/2012 21.00 81.03 57,658 Design C-27C Audit Notes: Version: Phase: ACTUAL Tie On Depth: 11,094.29 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 39.40 0.00 0.00 143.30 Survey Program Date: 6/26/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 100.00 10,500.00 1 :Sperry-Sun BOSS gyro multi(C-27) BOSS-GYRO Sperry-Sun BOSS gyro multishot 10,518.00 11,094.29 MWD(C-27B) MWD MWD-Standard 11,126.00 13,534.00 MWD(C-27C) MWD MWD-Standard 6/26/2012 1:42:54PM Page 2 COMPASS 2003.16 Build 73 VAS R HUGHES Survey Report-Geographic 11 bp INTEQ 111444 Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-27 Project: Prudhoe Bay TVD Reference: 32:27 11/11/1982 00:00 @ 72.40ft(generic drillir Site: PB C Pad MD Reference: 32:27 11/11/1982 00:00 @ 72.40ft(generic drillir Well: C-27 North Reference: True Wellbore: C-27C Survey Calculation Method: Minimum Curvature Design: C-27C Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +El-W Northing Easting (ft) (0) (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 11,094.29 40.97 126.97 8,925.76 -5,428.01 1,721.48 5,954,074.31 666,196.64 70°16'50.663 N 148°39'18.585 W TIP 11,126.00 44.39 119.25 8,949.08 -5,439.69 1,739.48 5,954,063.02 666,214.89 70°16'50.548 N 148°39'18.061 W KOP 11,154.12 52.44 108.23 8,967.76 -5,448.01 1,758.71 5,954,055.13 666,234.30 70°16'50.467 N 148°39'17.501 W 11,187.16 57.97 97.28 8,986.65 -5,453.90 1,785.12 5,954,049.82 666,260.83 70°16'50.409 N 148°39'16.732 W 11,216.22 62.16 89.09 9,001.17 -5,455.26 1,810.23 5,954,049.01 666,285.96 70°16'50.395 N 148°39'16.000 W' 11,245.08 64.39 89.98 9,014.14 -5,455.05 1,836.00 5,954,049.78 666,311.72 70° 16'50.397 N 148°39'15.250 W 11,274.07 70.74 90.84 9,025.20 -5,455.25 1,862.78 5,954,050.17 666,338.49 70° 16'50.395 N 148°39'14.470 W 11,308.12 76.39 91.79 9,034.83 -5,456.00 1,895.42 5,954,050.13 666,371.14 70° 16'50.388 N 148°39'13.519 W 11,333.91 82.93 92.48 9,039.46 -5,456.95 1,920.76 5,954,049.74 666,396.49 70° 16'50.378 N 148°39'12.781 W 11,368.35 89.29 102.29 9,041.80 -5,461.37 1,954.77 5,954,046.06 666,430.59 70° 16'50.335 N 148°39'11.790 W 11,398.95 92.61 104.01 9,041.29 -5,468.32 1,984.56 5,954,039.76 666,460.52 70° 16'50.266 N 148°39'10.923 W 11,430.06 96.11 93.72 9,038.92 -5,473.10 2,015.16 5,954,035.65 666,491.22 70° 16'50.219 N 148°39'10.032 W 11,461.43 97.84 84.36 9,035.10 -5,472.59 2,046.26 5,954,036.84 666,522.30 70° 16'50.224 N 148°39'9.126 W 11,491.64 96.92 77.79 9,031.22 -5,467.94 2,075.84 5,954,042.14 666,551.76 70° 16'50.270 N 148°39'8.264 W 11,520.42 95.28 71.69 9,028.16 -5,460.41 2,103.43 5,954,050.27 666,579.18 70° 16'50.344 N 148°39'7.461 W 11,550.59 93.85 65.50 9,025.76 -5,449.44 2,131.42 5,954,061.85 666,606.92 70°16'50.452 N 148°39'6.645 W 11,580.46 91.47 57.97 9,024.37 -5,435.32 2,157.68 5,954,076.54 666,632.86 70°16'50.590 N 148°39'5.881 W 11,610.34 91.26 53.67 9,023.65 -5,418.54 2,182.38 5,954,093.85 666,657.19 70°16'50.755 N 148°39'5.161 W, 11,640.30 89.82 49.54 9,023.37 -5,399.94 2,205.86 5,954,112.96 666,680.25 70°16'50.938 N 148°39'4.477 W 11,671.22 92.67 52.23 9,022.70 -5,380.44 2,229.84 5,954,132.98 666,703.80 70° 16'51.130 N 148°39'3.778 W 11,699.99 92.24 56.85 9,021.47 -5,363.77 2,253.24 5,954,150.15 666,726.83 70° 16'51.294 N 148°39'3.096 W 11,732.51 92.21 64.82 9,020.20 -5,347.95 2,281.59 5,954,166.59 666,754.83 70° 16'51.449 N 148°39'2.271 W 11,759.99 92.46 69.87 9,019.08 -5,337.37 2,306.92 5,954,177.72 666,779.92 70° 16'51.553 N 148°39'1.533 W 11,780.86 90.77 73.31 9,018.49 -5,330.79 2,326.72 5,954,184.73 666,799.56 70° 16'51.618 N 148°39'0.956 W! 11,809.97 89.14 77.42 9,018.52 -5,323.43 2,354.87 5,954,192.70 666,827.55 70° 16'51.690 N 148°39'0.136 W 11,840.36 88.89 85.22 9,019.04 -5,318.85 2,384.89 5,954,197.94 666,857.46 70° 16'51.735 N 148°38'59.262 W' 11,870.40 87.70 89.68 9,019.93 -5,317.52 2,414.88 5,954,199.93 666,887.41 70° 16'51.748 N 148°38'58.388 W' 11,900.46 87.24 94.10 9,021.26 -5,318.51 2,444.88 5,954,199.60 666,917.43 70° 16'51.738 N 148°38'57.514 W 11,930.48 86.47 98.36 9,022.91 -5,321.76 2,474.67 5,954,197.00 666,947.28 70° 16'51.706 N 148°38'56.647 W 11,960.28 87.97 104.14 9,024.36 -5,327.56 2,503.85 5,954,191.83 666,976.58 70° 16'51.649 N 148°38'55.797 W 11,990.38 89.66 109.07 9,024.98 -5,336.16 2,532.68 5,954,183.87 667,005.58 70° 16'51.564 N 148°38'54.957 W 12,020.61 91.20 104.80 9,024.75 -5,344.96 2,561.59 5,954,175.70 667,034.68 70°16'51.478 N 148°38'54.115 W 12,050.40 91.66 101.27 9,024.01 -5,351.68 2,590.60 5,954,169.62 667,063.83 70°16'51.412 N 148°38'53.270 W 12,080.70 91.01 98.63 9,023.30 -5,356.91 2,620.44 5,954,165.04 667,093.76 70°16'51.360 N 148°38'52.402 W 12,118.26 91.32 93.90 9,022.54 -5,361.01 2,657.75 5,954,161.76 667,131.16 70°16'51.320 N 148°38'51.315 W 12,149.36 90.25 90.31 9,022.11 -5,362.15 2,688.82 5,954,161.30 667,162.25 70°16'51.308 N 148°38'50.410 W 12,178.16 90.61 86.90 9,021.90 -5,361.45 2,717.61 5,954,162.63 667,191.01 70°16'51.315 N 148°38'49.571 W 12,210.56 90.15 81.13 9,021.68 -5,358.07 2,749.82 5,954,166.71 667,223.13 70° 16'51.348 N 148°38'48.633 W 12,237.94 91.96 76.19 9,021.18 -5,352.69 2,776.65 5,954,172.67 667,249.84 70° 16'51.401 N 148°38'47.852 W 12,266.67 92.98 71.96 9,019.94 -5,344.82 2,804.25 5,954,181.15 667,277.25 70° 16'51.478 N 148°38'47.048 W 12,301.37 91.90 68.25 9,018.46 -5,333.02 2,836.84 5,954,193.65 667,309.58 70° 16'51.594 N 148°38'46.098 WI 12,326.89 90.22 68.54 9,017.99 -5,323.63 2,860.56 5,954,203.56 667,333.09 70° 16'51.687 N 148°38'45.407 W 12,357.10 88.62 73.16 9,018.29 -5,313.72 2,889.09 5,954,214.09 667,361.39 70° 16'51.784 N 148°38'44.576 W 12,395.33 89.20 79.47 9,019.02 -5,304.68 2,926.21 5,954,223.94 667,398.30 70° 16'51.873 N 148°38'43.495 W 12,426.87 88.92 84.22 9,019.54 -5,300.21 2,957.42 5,954,229.09 667,429.40 70° 16'51.917 N 148°38'42.586 W 12,456.46 87.61 89.77 9,020.44 -5,298.66 2,986.94 5,954,231.29 667,458.88 70° 16'51.932 N 148°38'41.726 W 12,486.80 90.15 93.91 9,021.03 -5,299.64 3,017.25 5,954,230.97 667,489.20 70° 16'51.922 N 148°38'40.843 W 12,517.37 90.28 100.06 9,020.91 -5,303.35 3,047.58 5,954,227.92 667,519.60 70°16'51.885 N 148°38'39.960 W 12,546.71 90.15 107.27 9,020.80 -5,310.28 3,076.07 5,954,221.62 667,548.24 70° 16'51.817 N 148°38'39.130 W 12,570.19 88.68 110.05 9,021.04 -5,317.79 3,098.31 5,954,214.60 667,570.63 70°16'51.743 N 148°38'38.483 W 12,600.23 88.07 114.48 9,021.90 -5,329.16 3,126.09 5,954,203.84 667,598.66 70°16'51.631 N 148°38'37.674 W 12,630.14 89.94 116.35 9,022.42 -5,342.00 3,153.10 5,954,191.60 667,625.94 70°16'51.505 N 148°38'36.887 W' 12,661.79 91.72 112.16 9,021.96 -5,354.99 3,181.95 5,954,179.23 667,655.06 70°16'51.377 N 148°38'36.047 W 6/26/2012 1:42:54PM Page 3 COMPASS 2003.16 Build 73 rER t p BAKER HUGHES Survey Report Geographic INTEQ S Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-27 Project: Prudhoe Bay TVD Reference: 32:27 11/11/1982 00:00 @ 72.40ft(generic drillir Site: PB C Pad MD Reference: 32:27 11/11/1982 00:00 @ 72.40ft(generic drillir Well: C-27 North Reference: True Wellbore: C-27C Survey Calculation Method: Minimum Curvature Design: C-27C Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,690.35 93.56 110.10 9,020.64 -5,365.28 3,208.55 5,954,169.54 667,681.88 70°16'51.276 N 148°38'35.272 W 12,720.18 91.81 105.95 9,019.24 -5,374.50 3,236.88 5,954,160.94 667,710.41 70°16'51.185 N 148°38'34.447 W 12,750.31 88.44 101.84 9,019.18 -5,381.73 3,266.12 5,954,154.35 667,739.79 70°16'51.114 N 148°38'33.596 W 12,780.29 86.00 98.11 9,020.63 -5,386.91 3,295.60 5,954,149.81 667,769.38 70° 16'51.062 N 148°38'32.737 W 12,810.17 86.28 94.97 9,022.64 -5,390.31 3,325.22 5,954,147.06 667,799.06 70°16'51.029 N 148°38'31.875 W 12,840.44 89.20 92.31 9,023.84 -5,392.23 3,355.40 5,954,145.80 667,829.27 70° 16'51.010 N 148°38'30.996 W 12,870.31 89.20 88.21 9,024.26 -5,392.36 3,385.26 5,954,146.32 667,859.13 70° 16'51.008 N 148°38'30.126 W 12,900.24 90.86 84.24 9,024.24 -5,390.39 3,415.12 5,954,148.94 667,888.93 70° 16'51.028 N 148°38'29.256 W 12,931.66 92.43 81.09 9,023.34 -5,386.39 3,446.26 5,954,153.63 667,919.98 70° 16'51.067 N 148°38'28.349 W 12,961.15 91.35 77.86 9,022.36 -5,381.00 3,475.24 5,954,159.65 667,948.83 70° 16'51.120 N 148°38'27.505 W 12,989.97 90.31 76.22 9,021.95 -5,374.54 3,503.32 5,954,166.72 667,976.76 70° 16'51.183 N 148°38'26.687 W 13,020.21 90.61 71.94 9,021.70 -5,366.25 3,532.39 5,954,175.65 668,005.64 70° 16'51.265 N 148°38'25.840 W 13,050.06 89.32 68.76 9,021.72 -5,356.21 3,560.50 5,954,186.30 668,033.52 70° 16'51.363 N 148°38'25.021 WI 13,080.53 88.43 64.84 9,022.32 -5,344.21 3,588.49 5,954,198.90 668,061.24 70° 16'51.481 N 148°38'24.206 WI 13,110.51 89.51 70.57 9,022.86 -5,332.85 3,616.21 5,954,210.87 668,088.71 70° 16'51.593 N 148°38'23.398 W 13,146.31 90.71 74.43 9,022.79 -5,322.08 3,650.35 5,954,222.38 668,122.60 70° 16'51.698 N 148°38'22.404 W 13,170.28 91.41 77.50 9,022.35 -5,316.27 3,673.60 5,954,228.70 668,145.71 70° 16'51.755 N 148°38'21.727 W 13,200.21 91.41 81.82 9,021.61 -5,310.90 3,703.03 5,954,234.71 668,175.01 70° 16'51.808 N 148°38'20.869 W 13,230.32 91.51 86.96 9,020.84 -5,307.96 3,732.97 5,954,238.30 668,204.89 70° 16'51.837 N 148°38'19.997 W 13,260.11 91.01 90.39 9,020.19 -5,307.27 3,762.74 5,954,239.64 668,234.63 70° 16'51.844 N 148°38'19.130 W 13,295.28 90.98 96.48 9,019.58 -5,309.38 3,797.83 5,954,238.30 668,269.75 70° 16'51.823 N 148°38'18.108 W 13,351.07 89.17 114.11 9,019.50 -5,324.04 3,851.43 5,954,224.82 668,323.66 70° 16'51.678 N 148°38'16.547 W 13,380.16 89.51 117.36 9,019.84 -5,336.66 3,877.63 5,954,212.77 668,350.12 70° 16'51.554 N 148°38'15.784 W 13,410.18 90.37 119.23 9,019.87 -5,350.89 3,904.06 5,954,199.12 668,376.86 70° 16'51.414 N 148°38'15.015 W 13,440.17 89.82 113.53 9,019.82 -5,364.21 3,930.91 5,954,186.39 668,404.00 70° 16'51.283 N 148°38'14.233 W' 13,470.67 91.53 110.83 9,019.46 -5,375.73 3,959.15 5,954,175.50 668,432.48 70° 16'51.169 N 148°38'13.411 W 13,486.35 91.99 107.66 9,018.98 -5,380.89 3,973.95 5,954,170.66 668,447.38 70° 16'51.118 N 148°38'12.980 W' 13,534.00 91.50 103.50 9,017.53 -5,393.68 4,019.81 5,954,158.88 668,493.51 70° 16'50.992 N 148°38'11.644 W 2 3/8" 6/26/2012 1:42:54PM Page 4 COMPASS 2003.16 Build 73 Page 1 of 1 Schwartz, Guy L (DOA) From: Ross, Matthew[rossmo@BP.com] Sent: Thursday, June 14, 2012 9:02 AM To: Schwartz, Guy L (DOA) Subject: RE: C-27C change of plan C( T� 2/Z _o`/Z Attachments: Big Coil small hole (2).doc Guy; Your correct, we do get greater push & pull with the 2-3/8" coiled tubing. I've been working on this for over a year now& is a very large continuous project for BP &the state. Here's the engineering report on our progress thus far. We are still looking at all the data from the wells we have drilled so far. I suspect it is two things. An increase in friction & an increase in hydraulic force just from the difference in 2" to 2- 3/8" coiled tubing while inside 3-3/16" liner and 3" open hole. We have been fighting stick/slip drilling for the last three days while drilling with 2-3/8"coiled tubing. So, while we have more than enough weight on bit or push to drill, we can't maintain a constant weight on bit to drill & have destroyed 6 mud motors due to high weight on bit. We have more than enough data & case history to determine that we can drill this well with 2", however we will have to pick up an agitator for the last 700ft. We will be working with Conoco on this project to better understand the friction aspect which will allow us to update our modeling. We have few bit designs in the engineering phase that will allow for larger open hole as well as new LVT mud which will lower our friction. Hopefully, all of these new products will be available later this year&we will be able to complete this project. Many thanks. From: Schwartz, Guy L (DOA) [mailto:guy.schwartz@alaska.gov] Sent: Thursday, June 14, 2012 8:42 AM To: Ross, Matthew Subject: RE: C-27C change of plan Matt, Thanks for the update. I am curious as to why the change in CT size. Usually 2 3/8" is preferred as it more rigid ( better weight transfer) for drilling horizontal laterals. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Ross, Matthew [mailto:rossmo@BP.com] Sent: Thursday, June 14, 2012 8:27 AM To: Schwartz, Guy L(DOA) Subject: C-27C change of plan Guy; I just wanted to give you a heads up on C-27C as we are slightly deviating from the plan on the PTD for this well. Nordic 1 is currently on C-27C performing a CTD sidetrack, late yesterday, while trying to drill ahead using 2-3/8" coiled tubing it was determined that this was unfeasible. We have decided to swap to 2"coiled tubing to complete the drilling. Our completion will remain the same as was planned. Thanks. Matt 6/14/2012 p ir, ETI` fes) -4i ) r U '' U 1 ' i SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W 7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 / PHONE (907)279-1433 FAX (907)276-7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU C-27C BP Exploration (Alaska), Inc. Permit No: 212-042 Surface Location: 1775' FNL, 1033' FEL, SEC. 19, T11N, R14E, UM Bottomhole Location: 1720' FNL, 3241' FWL, SEC. 29, T11N, R14E, UM Dear Mr. McMullen: Enclosed is the approved application for permit to re-drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, 761; Cathy . Foerster Chaff 41 DATED this?/ day of April, 2012. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA I ALAS. )IL AND GAS CONSERVATION COMM. J RECEIVED PERMIT TO DRILL 20 AAC 25.005 �/ ��a �� MAR 1 F 2012 1 a.Type of work: lb.Proposed Well Class: ®Development Oil 0 Service-Winj Sirtgle Zo6e 1 c. Specify if well is proposed for ❑ Drill ®Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zbne I,, ,,Q,�CpIRedSGetnH ❑ Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp ale as \nch_/ra,"� 2. Operator Name: 5.Bond: ® Blanket 0 Single Wall 11. Well Name and Number: 1 BP Exploration(Alaska) Inc. Bond No. 6194193 ' PBU C-27C 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 13775' - TVD 8966'ss ' Prudhoe Bay/Prudhoe Bay . 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Surface: ADL 028305&028310 1775'FNL, 1033'FEL, Sec. 19,T11N, R14E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 1875'FNL,642'FWL, Sec.29,T11N, R14E, UM May 15,2012 Total Depth: 9.Acres in Property: 14 Distance to Nearest Property: 1720'FNL,3241'FWL, Sec.29,T11N, R14E, UM 2560 - 27931' , 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: . 72.34' feet 15.Distance to Nearest Well Open Surface: x- 664357.- y-5959464' Zone- ASP4 GL Elevation above MSL: 37.29' feet to Same Pool: 300' , 16.Deviated Wells: Kickoff Depth: 11125' ' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 98 " degrees Downhole: 3254 Surface: 2374 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) 3" 2-3/8" 4.6# L-80 STL 3725' 10050' 8024'ss 13775' 8966'ss 68 sx Class'G' ✓ 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth ND(ft): Junk(measured): 11947' 9025' None 11913' 9024' None Casing Length Size Cement Volume MD TVD Conductor/Structural 110' 20"x 30" 9 cu vds Concrete 110' 110' Surface 2739' 13-3/8" 3906 cu ft Arcticset II 2739' 2684' Intermediate 10463' 9-5/8" 1455 cu ft Class'G'. 130 cu ft Arcticset I 10463' 8420' Production Liner 918' 7" 451 cu ft Class'G' 10212'- 10513' 8222'-8460' Liner 1779' 3-1/2"x 3-3/16"x 2-7/8" 101 cu ft Class'G' 10168'- 11947' 8188'-9025' Perforation Depth MD(ft): 11250'- 11910' Perforation Depth ND(ft): 9020'-9024' . 20.Attachments: 0 Property Plat ® BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis ® Diverter Sketch 0 Seabed Report ®Drilling Fluid Program IN 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Contact Matt Ross,564-5782 Printed Name �1 , ., r I /� Title Engineering Team Leader JPrepared By Name/Number Signature / Phone 564-4711 Date y//,f /Z Joe Lastufka,564-4091 ' Commission Use Only ((( Permit • Drill , API Number: - Permit App�`�D to I See cover letter for Number. ��' � 50-029-20843-03-00 v (� other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,hagas hydrates,or gas contained shales: Other: 3 SCU 1,1.5.- ad) (P-5 f Samples Req'd• 0 Yes 111‘o Mud Log Req'd: Oyes �o H2S Measures: ©'Yes 0 No Directional Survey Req'd: Yes 0 No Date 4-4-2.-/Z- , PPROVED BY THE COMMISSIONERCOMMISSION Form 10-401 Revised 07/2009 This permit is valid for 24 monyalfRIGleislaAr al(20 AAC 25.0 5(g)) Submit In Duplicate i y To: Alaska Oil & Gas Conservation Commission0 bpFrom: Matthew Ross CTD Engineer Date: March 15, 2012 Re: C-27C Permit to Drill Request Approval is requested for a permit to drill a CTD sidetrack from well C-27B. CTD Drill and Complete C-27C program: Rig Start Date: May 15111,2012 Pre-Rig Work: (scheduled to begin April 10th, 2012) 1. F MIT- IA to 3,000 psi, MIT-OA to 2,000 psi). Passed 02/17/12 2. W Cycle LDS; PPPOT- T to 5,000 psi. Passed 12/27/11 3. S Drift tubing down to patch with 3.80" centralizer. 4. S Pull 4-1/2" KB patch from 10,106'-10,142'. 5. S Drift to deviation with dummy whipstock. 6. V PT MV, SV, WV. Bleed wellhead pressures down to zero. 7. 0 Bleed production flow and GL lines down to zero and blind flange. 8. 0 Remove wellhouse, level pad. 9. V Double valve IA. 10. F Load IA with 1% KCI & FP with diesel to 2000'. 11. F Load & kill well 24hrs prior to rig arrival. - 12. V Set BPV (6-3/8" `J' profile) 24 hrs prior to rig arrival. Rig Work: (scheduled to begin May 15th, 2012) 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. 2. Run dummy whipstock drift to 11,200'. Set 3-3/16" packer WS at 11,125'. 3. Mill 2.74" window at 11,125''and 10' of rathole in Zn2. Swap the well to Power-Pro SF. 4. Drill Build: 3.0" OH, 270' (28°/100 planned). 5. Drill Lateral: 3.0" OH, 2,380' (12°/100 planned) with resistivity. 6. Run 2-3/8" L-80 liner leaving TOL at 10,050' MD: 7. Pump primary cement leaving TOC at 10,050' MD, 14 bbls of 15.8 ppg liner cmt planned. -065 8. Cleanout liner and run MCNL/GR/CCL log. - 1--, -7-- p-u' 9. Perforate liner per asset instructions (-800'). or 10.Freeze protect well, set BPV, RDMO. Z i L-a-11-- Post-Rig v`I'iPost-Rig Work: 1. Re-install wellhouse, flowline and pull BPV. 2. Load IA with crude. 3. Set 4-1/2" KB liner top packer. 4. MIT IA to 3000psi. 5. Generic GLV's. 6. RU well testers. Mud Program: • Well kill: 8.4 p rine. • Milling/drilli g: 8.6 pg Power Pro for milling window and drilling (-681 psi overbalance). Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. • All Class I wastes will go to Pad 3 for disposal. Hole size: 3.0" Casing Program: • 2-3/8", 4.6#, L-80, STL Solid Liner 10,050' MD — 13,775' MD. • • A minimum of 14 bbls of 15.8 ppg cement will be used for liner cementing. (TOC 10,050' , MD). tiAti7 (�`' • The primary barrier for this operation: a minimum EMW of 8.4 ppg. • A X-over shall be made up to a safety joint including a TIW valve for all tubulars ran in hole. Well Control: • BOP diagram is attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3,500 psi. • The annular preventer will be tested to 250 psi and 3,500 psi. Directional • See attached directional plan. Maximum planned hole angle is 97.6°. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property—27,931'. • • Distance to nearest well within pool — 300'. . Logging • MWD directional, Gamma Ray and Resistivity will be run over all of the open hole section. . • Cased hole GR/CCL/MCNL logs will be run. Perforating: • SWS 1.56", 6 spf, pert guns, 1" CSH work string, & 2-1/16" PH6. • The primary barrier for this operation: a minimum EMW of 8.4 ppg. • A X-over shall be made up to a safety joint including a TIW valve for all tubulars ran in hole. • Anti-Collision Failures: • N/A. Hazards • The maximum recorded H2S level on C pad was 38 ppm on well C-33A on 4/6/2001. • Lost circulation risk is considered Low due to uncertainty in C-27C. - Reservoir Pressure • The reservoir pressure on C-27B is expected to be 3,254 psi at 8,800' TVDSS. (7.1 ppg equivalent). • Maximum expected surface pressure with gas (0.10 psi/ft) to surface is 2,374 psi. . • An EMW of 8.4 ppg for this well will provide 589 psi over-balance to the reservoir. 11 Matthew Ross - CC: Well File CTD Engineer j} ;Z Sondra StewmanlTerrie Hubble 1 TREE= 6-3/8"CM/ ACTUATOR= BAKER C C-2 7 B SAE_ NOTES: KB.ELEV= 72.3' BF.ELEV= 38.79' KOP= 2150' 2217' —5-1/2"OTIS HRQ SSSV NIP,ID=4.562" Max Angle= 95 @ 11477' Datum MD= 11034' Datum TVD= 8800'SS 2511' — 5-1/2"X 4-1/2"XO, ID=3.958" 5-1/2"TBG, 17#,L-80, .0232 bpf, ID=4.892" — 2511' _ 2693' 9-5/8"DV PKR GAS LIFT MANDRELS 13-3/8"CSG,72#,L-80,ID=12.347" 1 2739' ST MD TVD i DEV TYPE VLV LTCH PORT DATE 7 3033 2840 45 LBD DOME RM 16 08/13/11 6 5037 4284 42 LBD DMY RM 0 01/16/09 5 6252 5162 46 LBD SO RA 20 08/13/11 Minimum ID =2.372" 10338' 4 6992 5696 43 LBD DMY RA 0 04/08/98 3 7456 6037 42 LBD DMY RA 0 04/08/98 3-3/16 X 2-7/8" XO 2 7919 6383 40 LBD DMY RA 0 04/08/98 1 8026 6465 40 LBD DMY RA 0 04/08/98 10067' -_14-1/2"OTIS XA SLIDING SLV, ID=3.813" TOP OF CEMENT IN IA(04/04/11) 10050' I I IVW • 4-1/2"BKR KB PATCH, — 10106' -10142' ►•�4 4 ID=2.45"(06102/11) �• ,.�� 10131' I—ITM/PRB SEAL ASSY TUBING PUNCH(03/22/11) I 10110' -10112' ELMD ►i . .��i�i 10125-10127 MD •-•- ;=4 10147' —19-5/8"X 4-1/2"TM/HBBP PKR,ID=4.750" I 10186' —13.7"BKR DEPLOY SLV,ID=3.0" 4 4 I r. 10206' —13-1/2"HES X NIP,ID=2.813" 3-1/2"LNR,8.81#,L-80,.0087 bpf, ID=2.992" 10207' n4 .l_@ 10212' I—7"BOT LNR HGR TIEBACK SLV,ID=? ►4►• •.4. 10238' —3-1/2"X 3-3/16"XO, ID=2.880" I ►4•• •.4•4 - 9-5/8"CSG,47#,L-80, ID=8.681" 10463' J ►�0 ►' L TOP OF WHIPSTOCK 10518' I • 7" i-, 4 4 MILLOUT WINDOW(C-27B) 10513'- 10521' PERFORATION SUMMARY ,►�•�•�•�•4� 14 REF LOG: SPERRY SUN MCNL/GR LOG ON 12/09/03 ..♦:.:.� 11338' —3-3/16"X 2-7/8"XO, 4�� 4 ••*44 ID=2.372" ►�•u ANGLE AT TOP PERF:69 @ 11250' I Note:Refer to Production DB for historical pert data11913' — PBTD •SIZE SPF INTERVAL Opn/Sqz DATE • 2" 6 11250-11268 O 06/21/052" 6 11550-11910 O 12/09/034►.•••• ' �4'•-•-•-• 3-3/16"LNR,6.2#,L-80,.0076 bpf,ID=2.805" 11338' *i♦ 7"LNR,26#,L-80,ID=6.276" 11480' �••�� 11111 II 2-7/8"LNR,6.16#,L-80,.0055 bpf,ID=2.372" 11947' ' P1 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/14/82 INITIAL COMPLETION 06/03/11 TW/PJC SET KB PATCH(06/02/11) WELL: C-27B 01/08/97 CTD SIDETRACK(C-27A) 07/29/11 AJ/PJC TREE C/O(07/18/11) PERMIT No:x2031860 12/09/03 TM N/KK CTD SIDETRACK(C-27B) 08/14/11 AT/PJC GLV C/O(08/13/11) API No: 50-029-20843-02 03/26/11 SRD/PJC TBG PUNCH(3/22/11) SEC 19,T11 N, R14E, 1755'SNL&1033'WEL 04/08/11 CJS/PJC CEMENT IA/MILL PLUG(4/4-8/11) 04/28/11 BPG/PJC TBG PUNCH CORRECTION(3/22/11) BP Exploration(Alaska) TREE= 6-3/8"CMJ ACTUATOR= BAKER C C_2 7 C SAL NOTES: KB.ELEV= 72.3' proposed CTD sidetrack BF.ELEV= 38.79' KOP= 2150' 2217' _15-1/2"OTIS HRQ SSSV NIP, ID=4.562" Max Angle= 95 @ 11477' 0 Datum MD= 11034' Datum TVD= 8800'SS 2511' —1 5-1/2"X 4-1/2"XO, ID=3.958" 5-1/2"TBG, 17#,L-80, .0232 bpf,ID=4.892" 251*—1-- --1---------:- 2693' H 9-5/8"DV PKR GAS LIFT MANDRELS 13-3/8"CSG,72#,L-80, ID=12.347" —I 2739' I-41 ST MD TVD DEV TYPE VLV LTCH PORT DATE 7 3033 2840 45 LBD DOME RM 16 08/13/11 6 5037 4284 42 LBD DMY RM 0 01/16/09 Minimum ID = t78" @ 10100' '' 5 6252 5162 46 LBD SO RA 20 08/13/11 3" Deployment Sleeve 4II 4 6992 5696 43 LBD DMY RA 0 04/08/98 3 7456 6037 42 LBD DMY RA 0 04/08/98 Top of 2-3/8"liner and cement at-10,050'(cover tbg holes&sliding sleeve) 2 7919 6383 40 LBD DMY RA 0 04/08/98 1 8026 6465 40 LBD DMY RA 0 04/08/98 TOP OF CEMENT IN IA(04/04/11) 10050' � � 10067' _I4-1/2"OTIS XA SLIDING SLV, ID=3.813" CI•1 :•• TSGR = 10,475' MD ►•. 6• 39� iii •i ►•i•' • ►��` • 10131' —TIW PRB SEAL ASSY TUBING PUNCH(03/22/11) 10110' - 10112' ELMD ••�. •� 10125-10127 M D ��t �••.4 10147' H 9-5/8"X 4-1/2"TM/HBBP PKR, ID=4.750" 10186' H3.7"BKR DEPLOY SLV, ID=3.0" I 10206' —3-1/2"HES X NIP, ID=2.813" 3-1/2"LNR,8.81#,L-80, .0087 bpf, ID=2.992" 10207' IN, ► J —1 10212'J-17"BOT LNR HGR TIEBACK SLV, ID=? �4�• .4� 10238' H3-1/2"X 3-3/16"XO,ID=2.880" 9-5/8"CSG,47#,L-80,ID=8.681" —I 10463' Vi ► L ► ► . ,444: TOP OF WHIPSTOCK 10518' � 4`.1 4_4 MILLOUT WINDOW(C-27B) 10513'- 10521' 7"LNR,26#,L-80,ID=6.276" —{ 11480' I__--------k ►i ►' • 45 11338' 13-3/16"X 2-7/8"XO, PERFORATION SUMMARY ID=2.372" REF LOG: SPERRY SUN MCNL/GR LOG ON 12/09/03 ANGLE AT TOP PERF:69 @ 11250' 11913' — PBTD '1416, Note:Refer to Production DB for historical perf data 1 SIZE _ SPF INTERVAL Opn/Sqz DATE 2" 6 11250- 11268 0 06/21/05 2" 6 11550- 11910 0 12/09/03 3-3/16"whipstock at 11,125' ..of 2-7/8"CIBP(if neede L-2,1C (I _ 3-3/16"LNR,6.2#,L-80, .0076 bpf,ID=2.805" 11338' l 2-7/8"LNR,6.16#, L-80, .0055 bpf, ID=2.372" — 11947' 2-3/8"liner withTD at 13,775' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/14/82 INITIAL COMPLETION 06/03/11 TW/PJC SET KB PATCH(06/02/11) WELL: C-27C 01/08/97 CTD SIDETRACK(C-27A) 07/29/11 AJ/PJC TREE C/O(07/18/11) PERMIT No:F2031860 12/09/03 TMN/KK CTD SIDETRACK(C-27B) 08/14/11 AT/PJC GLV C/O(08/13/11) API No: 50-029-20843-02 03/26/11 SRD/PJC TBG PUNCH(3/22/11) 12/02/12 WJH proposed CTD sidetrack SEC 19,T11 N,R14E, 1755'SNL&1033'WEL 04/08/11 CJS/PJC CEMENT LA/MILL PLUG(4/4-8/11) 04/28/11 BPG/PJC TBG PUNCH CORRECTION(3/22/11) BP Exploration (Alaska) III In t MfgX -6) Z c z � o W a)1111111g1111111g o v • m Q co co Q= w M v y r o 0m y� U N N N V 00 r O FC N N O N nCO . aD cn Q O V n O v 0 Na U V= gq N C 2 O O > O > a U w O U O N�O Na N > rn m U Z z > N u J , U Q J 2 a) N a) — E (O N a) N > -• C N N .E C 0) O) y d 7 V N• a) 2 c 0 ca c c U C c O FT m o ` y J J (9 d > a) 7 O v0) V 7 N co in .+ c 'O aD c d L co J V' co w a, a) g Ce C a) c m O a E ,O U U N O p O) CU N O e L w a R H 0 a O w w a) Ov .S O Of T CO 0O CO J >• ❑ CO F E Z N ❑ C71 ppI.-- N O O t W V) O n aD O ( CI CO O_ O V N )f) O C O M 01 ' C_ ❑ F" a) 1) 0 10 o c , O W , 0 0 m 0 O m = > ~O N O N c O a) N 03 t.: S CI V ._ c m a3 O INO O C C .0 Z co p) y co 2 fA o 0 = 0 0 I 1 :;. ? 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Z Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: POOL: ! �r 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 CO c 0 o. CO N ° o o m a - ° Tu c Q O, E 0) a) a o n > t co' Lu (n 'o 05 0 0 n E c E O . n ° CO c. 4 o CO 0) - 0 o C _ W. a V' ° ai ° ° .L ) rv) aw 3 N0 CO c 0 O = C - N 3 co 0 3 a) 0 -`o (0 a) 6 'm 7 - a) > •5 O a) O o > m N a O E m m3 a n > > (n U 7 W > O L 0 c O. 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