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7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU D-31B Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-168 50-029-22672-02-00 11370 Conductor Surface Intermediate Production Liner 9022 80 3181 9364 2065 9036 20" 10-3/4" 7-5/8" 3-1/2" x 3-1/4" x 2-7/8" 8706 36 - 116 35 - 3216 34 - 9398 9305 - 11370 36 - 116 35 - 3199 34 - 8924 8873 - 9022 None 470 2480 5120 10530 9036, 9075, 9176, 9300, 9615, 10135, 10509, 11083 1490 5210 8180 10160 9010 - 11330 4-1/2" 12.6# 13cr80, L80 32 - 9424 8686 - 9023 Structural 4-1/2" Baker S3 Packer 9366, 8906 9258, 9366 8846, 8906 Torin Roschinger Operations Manager Finn Oestgaard finn.oestgaard@hilcorp.com 907.564.5026 PRUDHOE BAY Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028285 32 - 8938 N/A N/A 508 820 52861 50622 44 21 300 800 1140 1130 N/A 13b. Pools active after work:Prudhoe Oil 4-1/2" TIW HBBP Packer 9258, 8846 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations No SSSV Installed By Gavin Gluyas at 7:50 am, Feb 21, 2025 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2025.02.20 15:26:16 - 09'00' Torin Roschinger (4662) RBDMS JSB 030325 JJL 2/27/25 DSR-2/24/25 ACTIVITY DATE SUMMARY 2/16/2025 *** WELL S/I ON ARRIVAL*** ( PLUG SET / ADPERF ) MIRU YELLOW JACKET E-LINE. PT PCE 300 PSI LOW./3000 PSI HIGH, FUNCTION TEST WIRELINE VALVES CORRELATED TO SCHLUMBERGER COMPENSATED NEUTRON LOG DATED 05 JUNE 2013 PERFORATE 9010' - 9030' WITH 3.375" 6SPF 60PHASE HSC W/ GEODYNAMICS RAZOR CHARGES. CCL TO TOP SHOT 9.1' CCL STOP DEPTH = 9000.9'. CONFIRM SHOTS FIRED SET NORTHERN SOLUTIONS CIBP AT 9036'' CCL TO MID ELEMENT=12.2' CCL STOP DEPTH=9023.8'. TAG AFTER SET PERFORM WELL CONTROL DRILL WITH WSL ***WELL S/I ON DEPARTURE *** JOB COMPLETE Daily Report of Well Operations PBU D-31B MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Monday, July 22, 2024 SUBJECT:Mechanical Integrity Tests TO: FROM:Sully Sullivan P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC D-31B PRUDHOE BAY UNIT D-31B Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 07/22/2024 D-31B 50-029-22672-02-00 212-168-0 N SPT 8907 2121680 2500 494 2752 2668 2642 0 0 0 0 OTHER P Sully Sullivan 5/14/2024 MIT-T per Sundry 324-037 30 MinPretestInitial15 Min Well Name Type Test Notes: Interval P/F Well Permit Number: Type Inj TVD PTD Test psi API Well Number Inspector Name:PRUDHOE BAY UNIT D-31B Inspection Date: Tubing OA Packer Depth 361 483 498 501IA 45 Min 60 Min Rel Insp Num: Insp Num:mitSTS240530143141 BBL Pumped:1.3 BBL Returned:1.3 Monday, July 22, 2024 Page 1 of 1 1-Oil Completion MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Monday, July 22, 2024 SUBJECT:Mechanical Integrity Tests TO: FROM:Sully Sullivan P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC D-31B PRUDHOE BAY UNIT D-31B Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 07/22/2024 D-31B 50-029-22672-02-00 212-168-0 N SPT 8907 2121680 2500 0 772 790 792 0 0 0 0 OTHER P Sully Sullivan 5/14/2024 MIT-IA to 2500 per Sundry #324-037 30 MinPretestInitial15 Min Well Name Type Test Notes: Interval P/F Well Permit Number: Type Inj TVD PTD Test psi API Well Number Inspector Name:PRUDHOE BAY UNIT D-31B Inspection Date: Tubing OA Packer Depth 295 2742 2631 2596IA 45 Min 60 Min Rel Insp Num: Insp Num:mitSTS240530142157 BBL Pumped:3.4 BBL Returned:3 Monday, July 22, 2024 Page 1 of 1 1-Oil Completion 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 D-31B Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-168 50-029-22672-02-00 11370 Conductor Surface Intermediate Production Liner 9022 80 3181 9364 2065 9075 20" 10-3/4" 7-5/8" 3-1/2" x 3-1/4" x 2-7/8" 8734 36 - 116 35 - 3216 34 - 9398 9305 - 11370 36 - 116 35 - 3199 34 - 8924 8873 - 9022 None 470 2480 5120 10530 9075, 9176, 9300, 9615, 10135, 10509, 11083 1490 5210 8180 10160 9041 - 11330 4-1/2" 12.6# 13cr80, L80 32 - 9424 8709 - 9023 Structural 4-1/2" Baker S3 Packer 9366, 8906 9258, 9366 8846, 8906 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028285 32 - 8938 N/A N/A 434 1016 52017 53174 0 0 0 0 1120 1150 324-037 13b. Pools active after work:Prudhoe Oil 4-1/2" TIW HBBP Packer 9258, 8846 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations No SSSV Installed By Grace Christianson at 12:20 pm, Jul 02, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.07.02 11:59:09 - 08'00' Torin Roschinger (4662) RBDMS JSB 070324 WCB 10-1-2024 DSR-7/8/24 ACTIVITY DATE SUMMARY 6/28/2024 *** WELL S/I ON ARRIVAL*** (ADPERF/PLUG SET) MIRU YELLOW JACKET E-LINE. PT PCE 300 PSI LOW./3500 PSI HIGH, FUNCTION TEST WLVS PERFORATE INTERVAL 9041'-9067' WITH 3 3/8'' GEO RAZOR GUN 6 spf 60 DEG PHASE CCL TO TOP SHOT, 9.5' STOP DEPTH 9031.5 SET CIBP AT 9075', CCL TO MID ELEMENT12.5 =' CCL STOP DEPTH=9062.5' RDMO YELLOW JACKET ELINE ***WELL S/I ON DEPARTURE *** Daily Report of Well Operations PBU D-31B In an email dated 5-16-2024, after evaluating the CBL results, post IA cement squeeze, AOGCC gave Hilcorp approval to perforate "as described in Sundry 324-037." The IA cement top was logged at 7740' MD, modestly higher than the proposed/planned IA TOC of 7800' MD. The sundry listed perf depths ranging from 8950' to 9110'. The adperfs in the above WSR fall within that range. -WCB SET CIBP AT 9075', PERFORATE INTERVAL 9041'-9067 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 D-31B IA Cement Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-168 50-029-22672-02-00 11370 Conductor Surface Intermediate Production Liner 9022 80 3181 9364 2065 9176 20" 10-3/4" 7-5/8" 3-1/2" x 3-1/4" x 2-7/8" 8798 36 - 116 35 - 3216 34 - 9398 9305 - 11370 36 - 116 35 - 3199 34 - 8924 8873 - 9022 None 470 2480 5120 10530 9176, 9300, 9615, 10135, 10509, 11083 1490 5210 8180 10160 9080 - 11330 4-1/2" 12.6# 13cr80, L80 32 - 9424 8737 - 9023 Structural 4-1/2" Baker S3 Packer 9366, 8906 9258, 9366 8846, 8906 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 PRUDHOE BAY Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028285 32 - 8938 7740' - 9179'MD in the IA Pump 36-bbls of 15.8-ppg Class G Cement. Final displacement pressure = 350-psi. 328 518 54035 42073 736 9 250 450 1280 1140 324-037 13b. Pools active after work:Prudhoe Oil 4-1/2" TIW HBBP Packer 9258, 8846 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations No SSSV Installed By Grace Christianson at 12:01 pm, Jun 06, 2024 Digitally signed by Aras Worthington (4643) DN: cn=Aras Worthington (4643) Date: 2024.06.05 13:38:02 -08'00' Aras Worthington (4643) WCB 8-29-2024 DSR-6/7/24 RBDMS JSB 061124 ACTIVITY DATE SUMMARY 2/23/2024 T/I/O = 2150/230/0. Temp = SI. TBG & IA FL (FB). AL SI @ CV = 750 psi. TBG FL (Inconclusive) unable to see below liner top @ 9305'. IA FL @ 5559' (sta#3 SO, 146 bbls). SV, WV, SSV = C. MV = O. IA & OA = OTG. 15:00. 2/27/2024 ***WELL S/I ON ARRIVAL*** SET 4-1/2" WCS @ 9262' SLM PULLED BK-DGLV FROM ST#1 @ 9168'SLM (9173'MD) PULLED BK-OGLV FROM ST#3 @ 5549'SLM (5559'MD) PULLED BK-LGLV FROM STA #4 @ 3433' MD SET BK-DGLV IN STA#4 @ 3433' MD SET BK-DGLV IN STA#3 @ 5559' MD PULLED EMPTY 4-1/2" WCS FROM 9259' SLM ***WSR CONT ON 2/28*** 2/28/2024 T/I/O= 2350/1595/0 Assist Slcikline (CEMENT SQUEEZE) Pumped 15 bbls of Diesel down IA to load, IA locked up, job canceled. Pad Op notified upon LRS departure, Slickline in control of well. ***Man-down Drill Completed** 2/28/2024 ***WSR CONT FROM 2/28*** RAN 10' x 2.78 DMY GUN, 3.75 CENT TO 9269' SLM TAGGED TOP OF LTP @ 9269' SLM w/ 3.50 LIB (impression of LTP) ***WELL LEFT S/I ON DEPARTURE*** 2/29/2024 ***WELL S/I UPON ARRIVAL*** (cement squeeze) SET 4-1/2" WHIDDON CATCHER SUB ON LTP @ 9305' MD. PULLED BK-DGLV FROM ST#2 @ 7349' MD.(no pressure change) ATTEMPT TO PUMP DOWN IA, PRESSURES UP W/ 1 BBL OF DIESEL. PULLED 4 1/2" WHIDDON FROM LTP @ 9,263' SLM LRS CURRENTLY PUMPING 180* CRUDE DOWN IA IN ATTEMPT TO THAW IA ***CONT WSR ON 3/1/24*** 2/29/2024 Assist Slickline w/ suspected hydrates in IA (CEMENT SQUEEZE (OA/IA DWNSQZ)) Pumped 5 bbls 60/40 meth and 210 bbls 190* crude down Tbg. Pumped 3 bbls 60/40 meth down IA. ***Job Cont to 03-01-24 WSR*** 2/29/2024 T/I/O = 2400/1900/0. Temp = SI. TBG & IA FL's (assist SL). AL SI @ CV. TBG FL @ 7469' (120' below sta# 2, 113 bbls), IA FL @ 799' (21 bbls). 3/1/2024 ***CONT WSR FROM 2/29/24*** (cement squeeze) PERFORMED WELL CONTROL / FIRE DRILL WITH CREW LRS PUMPED 304 BBLS OF HOT SEAWATER DOWN TBG TO THAW ICE PLUG IN IA. LRS PUMPED 10 BBLS OF 60/40 & 66 BBLS OF CRUDE DOWN IA TO ESTABLISH FLOWPATH THROUGH ST#2 & ST#1 GLM.. SET 4-1/2" WHIDDON CATCHER SUB ON LTP @ 9305' MD. SET BK-DGLV IN ST#2 @ 7349' MD. PULLED 4-1/2" WHIDDON CATCHER SUB FROM LTP @ 9305' MD.(empty) LRS F/P TUBING W/ 3bbls METH, 50bbls CRUDE SET 450-350 CIBP (3.50") @ 9,260' SLM (9,300' MD) (use corr off ltp) ***CONT WSR ON 3/2/24*** Daily Report of Well Operations PBU D-31B Daily Report of Well Operations PBU D-31B 3/1/2024 ***Job Cont from 2-29-24 WSR*** Asssit Slickline w/ hydrate in IA (CEMENT SQUEEZE (OA/IA DWNSQZ)) Pumepd 5 bbls (8 bbls total) down IA and IA pressured up to 2500 psi. Continued to pump 22 bbls 190* crude down Tbg. Pumped 304 bbls 200* Seawater down the TBG. Pumped 5 bbls 60/40 down the TBG. Pumped 10 bbls 60/40 followed by 66 bbls 145* Crude down the IA for Freeze Protect. Pumped 20 bbls Crude down the IA to verify flow path. Pumped 3 bbls 60/40 followed by 50 bbls Crude down the TBG for Freeze Protect. ***Job Cont to 3-2- 24 WSR*** 3/2/2024 ***Job Cont from 03-01-24 WSR*** Assist Slickline (CEMENT SQUEEZE (OA/IA DWNSQZ)) CMIT-TxIA to 2296/2730 psi ***PASS*** Target= 2500 psi Max Applied = 2750 psi Pumped 59.2 bbls crude down Tbg to take Tbg/IA to 2324/2750 psi for CMIT-TxIA. Tbg/IA lost 28/20 psi in 1st 15 mins and 2/3 psi in 2nd 15 mins for a total loss of 30/23 psi in 30 min test. PASS. Bled Tbg/IA to 1000/1716 psi and got back ~18 bbls. SL in control of well per LRS departure. IA,OA=OTG **Tags hung on IA and MV 3/2/2024 ***CONT WSR FROM 3/1/24*** (cement squeeze) LRS PERFORMED PASSING PRESSURE TEST TO 2300psi (see log) ***WELL LEFT S/I UPON DEPARTURE, PAD OP NOTIFIED OF WELL STATUS*** 3/6/2024 T/I/O=0/340/0 (CIRC OUT) Pumped 5 bbls of 60/40 and 450 bbls of Diesel down TBG, up IA, while taking returns to D-09 FL. Freeze proteced D-09 FL with 9 bbls of 60/40 and 100 bbls of Crude. Pad Op notified of well status upon departure. Valve Positions - SV/WV/SSV/AL= Closed, MV= Open, IA/OA= OTG FWHPs= 200/5/0 3/7/2024 *** WELL S/I ON ARRIVAL *** SET DMY IN STATION #1 @ 9159' SLM (9,179' MD) PERFORMED PASSING MIT-T AND MIT-IA (2,600 PSI) PULLED BK, DGLV FROM STATION #1 @ 9,159' SLM (9,179' MD) (EMPTY POCKET) *** WELL SHUT IN ON DEPARTURE *** 4/7/2024 ***WELL S/I UPON ARRIVAL*** MIRU HES PT PCE 500PSI LOW, 2500PSI HIGH CORRELATE TO SLB CNL DATED 05-jUN-13 SET HES FAS DRILL SVB CEMENT RETAINER AT COE 9195' (9176' SCHEMATIC REFERENCE DEPTH) RDMO HES ****WELL S/I UPON DEPARTURE*** 4/24/2024 CT 9 1.75" Dura COil 0.156 WT - Job Scope = Cement IA MIRU. Perform Weekly BOP test. Pass. MU YJ MHA and HES cement stinger. RIH Sting Into CR @ 9176' MD. ***Continue on WSR 4/25/24*** Daily Report of Well Operations PBU D-31B 4/25/2024 CT 9 1.75" Dura COil 0.156 WT - Job Scope = Cement IA MIRU Slb Cementers. Pump FW & Surfactant wash. 37 bbls 15.8 ppg class G Cmt. Estimated cement top in IA ~7800'. Displace w/ FW Spacer & slick 1% kcl. Unsting from retainer with 36 bbls below the retainer. Reverese final bbl of cement out while POOH. Hung up at 7340 CTMD (Mandrel #2). Tried working past multiple ways with no success. ***Continue on WSR 4/26/24*** 4/26/2024 CT 9 1.75" Dura COil 0.156 WT - Job Scope = Cement IA Pump PowerVis Pill. Work CT adjusting spds. Popped Free from GLM #2 7349' MD. POOH. FP CT and Well 2500' w/ Diesel. BD HES Stinger BHA & YJ Centralizer. Start RD. WOW. ***Job Complete*** 4/28/2024 **Job postponed till Well Support can remove frozen hardline from well** 4/29/2024 T/I/O=0/60/0 Pre-AOGCC MIT T PASSED to 2684 psi, Pre-AOGCC MIT IA PASSED to 2616 psi (Post IA cement squeeze) ) Pump 2 bbls diesel down IA to 1000 psi. Line up to test the tubing. Pump 2.3 bbls diesel down tbg to 2766 psi. T lost 75 psi 1st mins and lost 38 psi 2nd 15 mins. Ran test an additional 30 mins. T lost 28 and 22 psi for total loss of 163 in 60 mins. Bumped up with 0.1 bbls diesel to 2783 psi. Held for 1 hr. T lost 28/22/20/19 in 60 mins. Bled tbg back to 0 psi. Re-pressurized tubing with 1.6 bbls diesel to 2768 psi. T lost 61 psi 1st 15 min & 23 psi 2nd 15 mins for a total loss of 84 psi in 30 mins. Bled TP back to 1000 psi. Had grease crew service wing valve. Line up down the IA. Pumped 2.5 bbls diesel down IA to 2759 psi. IAP lost 99 psi 1st 15 min & 44 psi 2nd 15 mins. Held IAP for an additional 30 mins. IA lost 35/30 for a total loss of 208 psi in 60 mins. Bled IA to 0 psi. Repressured IA with 3.75 bbls of diesel. IA lost 103 1st 15 mins and 41 2nd 15 mins for a total los of 144 psi in 30 mins. Bled IA to1000 psi. Line up to test tubing one more time. Starting pressure 1088 psi. Pump 1 bbl to achieve test pressure of 2778 psi. T lost 73 psi 1st 15 mins and 27 psi 2nd 15 mins for a total loss of 100 psi in 30 mins. Bled T & IA to finals. Final WHPs=940/425/0 5/12/2024 ***WELL S/I ON ARRIVAL*** FUNCTION TEST WLV=PASS RAN 20'X 3-3/8" DMY GUNS W/ 3.64" RINGS TO CMT RET @ 9,176' MD RUN CBL PER PROGRAM- DATA GOOD ***WELL LEFT S/I NOTIFIED DSO OF WELL STATUS*** 5/14/2024 T/I/O= 0/295/0 Temp= SI. LRS 72 AOGCC (Sullivan) MIT-IA and MIT-T (CEMENT SQUEEZE) MIT-IA to 2500 psi PASSED at 2596 psi (2750 psi max applied). IA lost 111 psi during the first 15 minutes and 35 psi during the second 15 minutes. IA lost 146 psi during the 30 minute test. Pumped 3.4 bbls of 80*F diesel to achieve test pressure. Bled back 3 bbls to Final T/I/O= 517/269/0. MIT-T to 2500 psi. PASSED at 2642 psi (2750 psi max applied) TBG lost 84 psi during the first 15 minutes and 26 psi psi during the second 15 minutes. TBG lost 110 psi during the 30 minute test. Pumped 1.3 bbls of 68*F diesel to achieve test pressure. Bled back 1.3 bbls to Final T/I/O= 394/387/0 CBL shows TOC @7740' MD, 60' higher up than was planned. Good. -WCB Passing MIT-T and MIT-IA (both to 2500 psi) was a COA of Sundry 324-037. -WCB 37 bbls 15.8 ppg class G Cmt. Estimated cement top in IA ~7800'. AOGCC (Sullivan) MIT-IA and MIT-T (CEMENT SQUEEZE)) MIT-IA to 2500 psi PASSED at 2596 psi (2750 psi max applied). IA lost 111 psi() during the first 15 minutes and 35 psi during the second 15 minutes. IA lost 146 psigg during the 30 minute test. Pumped 3.4 bbls of 80*F diesel to achieve test pressure.g Bled back 3 bbls to Final T/I/O= 517/269/0. MIT-T to 2500 psi. PASSED Daily Report of Well Operations PBU D-31B 5/15/2024 ***WELL S/I ON ARRIVAL FUNCTION TEST WLV=PASS JOB CALLED OFF DUE TO STATE TESTING NEEDED R/D HES 759 ***WELL LEFT S/I. NOTIFIED DSO OF WELL STATUS*** 5/18/2024 *** WELL SHUT IN ON ARRIVAL *** OBJECTIVE: ADPERF FROM 9080' - 9100' STAB ON PCE AND PT 300L/3000 PSI HIGH RIH W/ ( CH 1' 1.435" ) ( GG 6.08' 2.75" ) ( QC .97' 3.13" ) ( FH 2' 3.13" ) ( TOP SUB .3' 3.38" ) ( GUN 21' 3.38" ) ( BOTTOM NOSE .3' 3.38" ) GAMMA RAY CCL CORRELATE TO SLB MEMORY COMPENSATED NEUTRON LOG DATED 05-JUNE-2013 SHOT INTERVAL 9080' - 9100' CCL OFFSET 9.5' CCL STOP DEPTH 9070.5' WELL CONTROL DRILL AND MAN DOWN DRILL DONE W/ CREW *** JOB COMPLETED *** Perforated interval is within the proposed and approved depth range of 8950'-9110' on Sundry 324-037. -WCB SHOT INTERVAL 9080' - 9100' Nolan Vlahovich Hilcorp Alaska, LLC Geotech 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 564-4558 E-mail: nolan.vlahovich@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Date: 5/21/2024 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20240521 Well API #PTD #Log Date Log Company Log Type AOGCC Eset# END 3-07A 50029219110100 198147 5/11/2024 HALLIBURTON Coilflag MPU E-19 50029227460000 197037 3/25/2024 READ CaliperSurvey MPU F-66A 50029226970100 196162 5/8/2024 READ CaliperSurvey MPI 1-27 50029216930000 187009 5/7/2024 READ PPROF MPU L-17 50029225390000 194169 5/8/2024 READ CaliperSurvey NCI A-12B 50883200320200 223053 5/2/2024 READ MAPP NCI A-17 50883201880000 223031 5/3/2024 READ MAPP PBU 11-41 50029237820000 224017 5/11/2024 HALLIBURTON RBT/Coilflag PBU D-31B 50029226720200 212168 5/12/2024 HALLIBURTON RBT PBU F-31A 50029216470100 212002 5/8/2024 READ CaliperSurvey PBU J-19 50029216290000 186135 5/2/2024 HALLIBURTON RBT PBU L-292 50029237510000 223025 5/6/2024 HALLIBURTON PPROF Please include current contact information if different from above. T38831 T38832 T38833 T38834 T38835 T38836 T38837 T38838 T38839 T38840 T38841 T38842 PBU D-31B 50029226720200 212168 5/12/2024 HALLIBURTON RBT Gavin Gluyas Digitally signed by Gavin Gluyas Date: 2024.05.22 09:57:50 -08'00' 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:Rixse, Melvin G (OGC) To:AOGCC Records (CED sponsored) Subject:20240516 1109 APPROVAL to Perforate PTD #212-168; Sundry #324-037 PBU D-31B Date:Thursday, May 16, 2024 4:29:13 PM Attachments:image001.png From: Rixse, Melvin G (OGC) Sent: Thursday, May 16, 2024 11:13 AM To: Michael Hibbert <Michael.Hibbert@hilcorp.com> Cc: Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Abbie Barker <Abbie.Barker@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Roby, David S (OGC) <dave.roby@alaska.gov>; Davies, Stephen F (OGC) <steve.davies@alaska.gov>; Dewhurst, Andrew D (OGC) <andrew.dewhurst@alaska.gov> Subject: 20240516 1109 APPROVAL to Perforate PTD #212-168; Sundry #324-037 PBU D-31B Michael, 1. Hilcorp is approved to perforate as described in Sundry 324-037 within the PB oil pool. 2. Hilcorp is approved to POP this well without gas lift. If gas lift is required after perforating, a charted and passing MIT-IA to 2500 psi will be required. Mel Rixse Senior Petroleum Engineer (PE) Alaska Oil and Gas Conservation Commission 907-793-1231 Office 907-297-8474 Cell CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Mel Rixse at (907-793-1231 ) or (Melvin.Rixse@alaska.gov). From: Michael Hibbert <Michael.Hibbert@hilcorp.com> Sent: Wednesday, May 15, 2024 9:58 AM To: Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov> Cc: Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Abbie Barker <Abbie.Barker@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com> Subject: PTD #212-168; Sundry #324-037 Mel, We have executed the IA cement job on PB D-31B and the CBL is completed. Original Sundry and CBL attached for reference. Proposed TOC was ~7,800’ MD, TOC on the log indicated @ ~7,740’ MD as well (see snapshot below). The CMIT-TxIA and MIT-T passed to 2500 psi on 5/14/24 and were witnessed by Sullivan. Please review and notify us that we are good to proceed with perforating. Thank you, Michael Hibbert PBW Operations Engineer 907-903-5990 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. Nolan Vlahovich Hilcorp Alaska, LLC Geotech 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 564-4558 E-mail: nolan.vlahovich@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Date: 4/19/2024 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20240419 Well API #PTD #Log Date Log Company Log Type AOGCC Eset# BRU 241-23 50283201910000 223061 4/5/2024 AK E-Line Perf BRU 242-04 50283201640000 212041 3/20/2024 AK E-Line JB/PProf NCIU A-17 50883201880000 223031 3/27/2024 AK E-Line GPT/Perf PBU 05-02A 50029201440100 201241 4/6/2024 Halliburton PPROF PBU 09-35A 50029213140100 193031 4/9/2024 Halliburton RBT PBU 13-24A 50029207390100 204243 4/5/2024 Halliburton RBT PBU B-14A 50029203490100 209059 4/2/2024 Halliburton RBT PBU D-31B 50029226720200 212168 4/7/2024 Halliburton PERF SRU 222-33 50133207150000 223100 3/27/2024 AK E-Line CIBP/Perf SRU 224-10 50133101380100 222124 3/29/2024 AK E-Line CIBP/Perf SRU 241-33B 50133206960000 221053 4/2/2024 AK E-Line CIBP Please include current contact information if different from above T38718 T38719 T38720 T38721 T38722 T38723 T38724 T38725 T38726 T38727 T38728 PBU D-31B 50029226720200 212168 4/7/2024 Halliburton PERF Meredith Guhl Digitally signed by Meredith Guhl Date: 2024.04.19 14:54:13 -08'00' 7. If perforating: 1. Type of Request: 2. Operator Name: 3. Address: 4. Current Well Class:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Property Designation (Lease Number):10. Field: Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown What Regulation or Conservation Order governs well spacing in this pool? Will perfs require a spacing exception due to property boundaries?Yes No 11. Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): PRESENT WELL CONDITION SUMMARY Perforation Depth MD (ft): Perforation Depth TVD (ft):Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type:Packers and SSSV MD (ft) and TVD (ft): Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 12. Attachments: 14. Estimated Date for Commencing Operations: 13. Well Class after proposed work: 15. Well Status after proposed work: 16. Verbal Approval: 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approcal. Proposal Summary Wellbore schematic BOP SketchDetailed Operations Program OIL GAS WINJ WAG GINJ WDSPL GSTOR Op Shutdown Suspended SPLUG Abandoned ServiceDevelopmentStratigraphicExploratory Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: AOGCC USE ONLY Commission Representative: Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number: Location ClearanceMechanical Integrity TestBOP TestPlug Integrity Other Conditions of Approval: Post Initial Injection MIT Req'd?Yes No Subsequent Form Required: Approved By:Date: APPROVED BY THE AOGCCCOMMISSIONER PBU D-31B IA Cement Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-168 50-029-22672-02-00 341J ADL 0028285 11370 Conductor Surface Intermediate Production Liner 9022 80 3181 9364 2065 9615 20" 10-3/4" 7-5/8" 3-1/2" x 3-1/4" x 2-7/8" 9021 36 - 116 35 - 3216 34 - 9398 9305 - 11370 2370 36 - 116 35 - 3199 34 - 8924 8873 - 9022 None 470 2480 5120 10530 9615, 10135, 10509, 11083 1490 5210 8180 10160 9420- 11330 4-1/2" 12.6# 13cr80, L80 32 - 94248936 - 9023 Structural 4-1/2" Baker S3 Packer 4-1/2" TIW HBBP Packer 9258, 8846 9366, 8906 Date: Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com (907) 903-5990 PRUDHOE BAY 3/1/2024 Current Pools: PRUDHOE OIL Proposed Pools: PRUDHOE OIL Suspension Expiration Date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Comm. Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 06/2023 Approved application is valid for 12 months from the date of approval.Submit PDF to aogcc.permitting@alaska.gov By Grace Christianson at 3:54 pm, Jan 25, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2024.01.25 15:44:47 -09'00' Torin Roschinger (4662) 324-037 * State to witness MIT-IA to 2500 psi. MIT - T to 2500 psi. * Biennial MIT-IA and CMIT x IA * CBL log to AOGCC for review and approval to perforate through cement. *Compliance to CO736 SFD 2/5/2024 2370 Perforate DSR-2/21/24 10-404 MGR03FEB24*&:JLC 2/21/2024 Brett W. Huber, Sr. Digitally signed by Brett W. Huber, Sr. Date: 2024.02.21 15:27:06 -09'00'02/21/24 RBDMS JSB 022324 IA Cement D-31B PTD:212-168 Well Name:D-31B API Number:50-029-22672-02 Current Status:Operable – HGOR Rig:SL/CTU/EL Estimated Start Date:3/1/24 Estimated Duration:4day Reg.Approval Req’std?10-403 Date Reg. Approval Rec’vd: Regulatory Contact:Abbie Barker Permit to Drill Number:212-168 First Call Engineer:Michael Hibbert (907) 903-5990 (C) Second Call Engineer:Kirsty Schultz (907) 350-4310 (C) Current Bottom Hole Pressure:3250 psi @ 8,800’ TVD (Based on Average Ivishak BHP) Maximum Expected BHP:3250 psi @ 8,800’ TVD (Based on Average Ivishak BHP) Max. Anticipated Surface Pressure:2370psi (Based on 0.1 psi/ft. gas gradient) Last SI WHP:2430 psi (Taken on 5/22/23) Min ID:2.35” Baker KB LTP @ 9,305’ Max Angle:96 Deg @ 9,919’ MD Brief Well Summary: CTD sidetrack completed in June 2013. The well was competitive for ~2-3 years. In 2017, attempts were made to move up-hole, but 3 rounds of plug and perfs did not result in any long-term success. The current plan is to walk away from the GDWFI portion of the well and pursue rich gas targets above the current packer at 9258’. No current integrity issues with this well. Well would not financially justify a RWO to move the packer above the target perforation intervals. Objective:This program will isolate the current perforations/liner with a 4-1/2” CIBP set above the LTP. Cement will then be placed into the IA through GLM #1 via a cement retainer set at 9,170’. Post cement-job the well be pressure tested and a CBL log completed to verify cement top in the IA. Four rich gas targets will be perforated with EL between 8,950’ - 9,110’. The proposed TOC in the IA is ~7,800’ MD which is ~4300’ TVD below the SC shoe and ~3300’ deeper than the estimated top of the UG4 (depths given per AOGCC CO 736 rules). Top of UG4 is 4281’ MD/4260’ TVD. Surface casing shoe is 3200’ MD/3183’ TVD. Post-job Evaluation x MIT-T and CMIT-TxIA x CBL to confirm the Top of Cement (TOC) Long-Term Integrity Monitoring x Biennial MIT-T and CMIT-TxIA x Monitor and Record WHPs daily Procedure: DHD 1. Shoot fluid level shots to confirm fluids to order for loading tubing and IA. Slickline and Fullbore 1. Pull GLVs #3 and #4 and set dummy GLVs in same. 2. Pull GLV #1 and leave open. 3. Load IA and tubing with ~381 bbls of diesel 4. Set CIBP with DPU at 9,308’ per attached and annotated tie-in log above LTP. Call and discuss this step if there is no good way for SL to accurately set the CIBP with tags/depth correlations. 5. Bleed any residual gas from tubing and IA. Four rich gas targets will be perforated with EL between 8,950’ - 9,110’. IA Cement D-31B PTD:212-168 6. Set dummy GLV in station #1 and MIT-T to 2,500 psi and MIT-IA to 2500 psi. 7. Pull dummy GLV from station #1 and leave empty 8. Confirm good circulation tubing to IA for upcoming cement job. 9. RDMO EL 1. MIRU 2. Pull correlation log and send to OE/Geo for confirmation of set depth. 3. Set Fastdrill cement retainer at 9,170’ just above GLM #1. On the tie-in log this is at 9,195’ (see attached and annotated log). 4. RDMO Coiled Tubing 1. MIRU CTU – T & IA should be fluid packed with diesel down to GLM #1 at 9,179’ 2. RIH w/ stinger for HES SVB Retainer set at 9,170’. 3. Sting into retainer at 9,170’ and verify circulation path down the CT taking returns from the IA a. Consider flagging coil at surface when stung into retainer 4. Close in IA and pressure test down CT to verify fully stung into retainer with no communication to CTBS – this will pressure up the CT and IA – no pressure should be seen on the CTBS. 5. Circulate the following pump schedule down the CT and up the IA: a. 10 BBLs FW water spacer b. 10 BBLs surfactant wash c. 37 BBLs of 15.8 ppg Class G cement – with ~1 bbls of cement still in the coil unsting from the retainer and layin 1:1 remaining cement, FW spacer and contam pill d. 10 BBLs FW spacer e. 20 bbls contamination pill f. Shut down pump 6. RIH to above retainer 7. Pump down the CTBS with diesel at max rate and reverse out cement, FW and contam pill 8. Can start pulling out of hole when ~25 bbls of diesel has been pumped 9. Circulate a total of 30 bbls plus CT volume of diesel down CTBS before shutting down pump 10. POOH. Swap CT to 60/40 as needed while POOH. 11. Layin freeze protect from 2500’ to surface if needed 12. TOC estimated to be 7800’ MD in the IA 13. RDMO Fullbore 1. MIT-IA to 2500 psi 2. MIT-T to 2500 psi Slickline 1. Drift and tag for upcoming EL perforating 1. Memory CBL from 9,170’ to 7,000’to identify TOC and send log toMichael Hibbertforsubmittal and review by AOGCC. 2. Set generic GL design in stations #3 and #4 Well Diagnostics & WIE 1. Update AKIMS and add biennial MIT-T & CMIT-TxIA. AOGCC to witness MIT-IA and MIT-T. review by AOGCC. TOC estimated to be 7800’ MD in the IA IA Cement D-31B PTD:212-168 Cement Calculations ¾7-5/8” x 4-1/2” volume from 9,179’ – 7,800’ MD: 37 BBLS pumpable Cement Thickening Time (mix on the fly) Activity Time (hours) Shearing time, quality control, PJSM 0 Cement displacement 3 Cement contamination 1 Safety 1 Minimum Required Thickening Time 5 Attachments: x Current Wellbore Schematic x Proposed Schematic x Sundry Change Form Cement Type/weight:Class G 15.8 ppg mixed on the fly. Field blend to be =lab ppg +/- 0.1 ppg Slurry Temperature:between 80° and 110°F BHST 200°F Fluid Loss:40-200cc (20-100cc/30 min) Compressive Strength:500 psi in 12 hrs. Thickening Time:Minimum 5 hours IA Cement D-31B PTD:212-168 Current Wellbore Schematic IA Cement D-31B PTD:212-168 Proposed Wellbore Schematic CIBP – ~9,308’ C IA Cement – 7,800’ – 9,179’ Cement Retainer – ~9,170’ IA Cement D-31B PTD:212-168 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 HNS Prepared By (Initials) HNS Approved By (Initials) AOGCC Written Approval Received (Person and Date) Approval: Operations Manager Date Prepared: Operations Engineer Date Kyle Wiseman Hilcorp Alaska, LLC Geotechnician 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: (907) 777-8337 E-mail: Kyle.Wiseman@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal. Received By: Date: Date: 11/29/2022 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20221129 Well API #PTD #Log Date Log Company Log Type AOGCC Eset# PBU L-207 50029237020000 221081 10/30/2022 Halliburton PPROF PBU L-218 50029232720000 205119 11/2/2022 Halliburton IPROF PBU V-137 50029235820000 217134 10/30/2022 Halliburton IPROF PBU D-31B 50029226720200 212168 7/5/2022 Baker SPN-PNC3D Please include current contact information if different from above. By Meredith Guhl at 11:38 am, Nov 29, 2022 T37332 T37333 T37334 T37335 PBU D-31B 50029226720200 212168 7/5/2022 Baker SPN-PNC3D Meredith Guhl Digitally signed by Meredith Guhl Date: 2022.11.29 11:42:50 -09'00' 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU D-31B Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-168 50-029-22672-02-00 11370 Conductor Surface Intermediate Production Liner 9022 80 3181 9364 2065 9615 20" 10-3/4" 7-5/8" 3-1/2" x 3-1/4" x 2-7/8" 9021 36 - 116 35 - 3216 34 - 9398 9305 - 11370 36 - 116 35 - 3199 34 - 8924 8873 - 9022 None 470 2480 5120 10530 9615, 10135, 10509, 11083 1490 5210 8180 10160 9420- 11330 4-1/2" 12.6# 13cr80, L80 32 - 9424 8936 - 9023 Structural 4-1/2" Baker S3 Packer 9366, 8906 9258, 9366 8846, 8906 Torin Roschinger Area Operations Manager Kirsty Glasheen Kirsty.Glasheen@hilcorp.com 907.564.5258 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 0028285 32 - 8938 N/A N/A 185 328 24951 54035 933 736 250 250 880 1280 N/A 13b. Pools active after work:Prudhoe Oil 4-1/2" TIW HBBP Packer 9258, 8846 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 8:11 am, Jun 05, 2023 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2023.06.02 14:10:58 -08'00' Torin Roschinger (4662) RBDMS JSB 071823 DSR-6/12/23WCB 1-8-2024 ACTIVITY DATE SUMMARY 5/22/2023 T/I/O = 2430/250/0. Temp = SI. T FL (E-line request). ALP = 2020 psi, SI @ CV. T FL @ 9005' (179' above sta # 1, DMY, 137 bbls). E-line in control of well upon departure. SV = O. WV = C. SSV, MV = O. IA, OA = OTG. 16:00 5/22/2023 ***WELL S/I ON ARRIVAL*** RAN 10' x 2.29" DMY GUN & 1.75" S.BAILER STALL OUT DUE TO DEVIATION @ 9,635' SLM *** WELL S/I ON DEPATURE*** 5/22/2023 ***WELL S/I ON ARRIVAL*** PRESSURE TEST PCE 200#LP-3,000#HP RIH W/ 1-7/16" CHD (1" FN), 2" WB, 2 X 1-11/16" WB, 1-11/16" GR/CCL, LS SETTING TOOL, NS 325-228 CIBP(2.281" MAX OD, 28' OAL) PLUG SET @ 9,615', CCL OFFSET=14.3', CCL STOP DEPTH=9,600.7' (ELMD) RIH W/ 1-7/16" CHD (1" FN), 2" WB, 1-11/16" WB, 1-11/16" GR/CCL, 11' X 2" GUN CARRIER (LOADED 10' W/ 6.8 GRAM CONNEX CHARGES, 2" MAX OD, 28' OAL) PERF DEPTH=9,420'-9,430', CCL OFFSET=8.5', CCL STOP DEPTH=9,411.5' INSTALL & PT TREECAP ***WELL LEFT S/I*** Daily Report of Well Operations PBU D-31B ( PERF DEPTH=9,420'-9,430 RIH W/ 1-7/16" CHD (1" FN), 2" WB, 2 X 1-11/16" WB, 1-11/16" GR/CCL, LS() SETTING TOOL, NS 325-228 CIBP(2.281" MAX OD, 28' OAL) PLUG SET @ 9,615', By Samantha Carlisle at 12:58 pm, Aug 19, 2022 ` • STATE OF ALASKA • ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations liET Fracture Stimulate 0 Pull Tubing 0 Operations shutdown ❑Sus end 0Perforate ® Other Stimulate 0 Alter Casing0 Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Change Approved Program 0 PRe-enter Susp Well 0 Other. 5t-i-ei8/7 Ck/ 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 3. Address: P.O.Box 196612 Anchorage, Development 5. Permit to Drill Number: 212-168 CCT Exploratory ❑ AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-22672-02-00 7. Property Designation(Lease Number): ADL 0028285 8• Well Name and Number. PBU D-31B 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 11370 feet Plugs measured 10509/11083 feet RECEIVED true vertical 9022 feet Junk Effective Depth: measured feet P measured 10509 feet Packer AUG 14 2017 measured See Attachment feet true vertical 9020 feet Packer true vertical See Attachment feet ��'�c Casing: Length: Size: AOC MD: TVD: Burst: Collapse: Structural Conductor 78 20"91.5#H-40 38-116 38-116 1490 470 Surface 3181 10-3/4"45.5#L-80 37-3218 37-3201 5210 2480 Intermediate See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment 10200-10230 feet 10230-10260 feet 10300-10330 feet 10330-10360 feet 10560-10620 feet Perforation Depth: Measured depth: 10680-10740 feet 11130-11330 feet True vertical depth: 9021-9020 feet feet 9020-9020 feet 9020-9020 feet 9020-9020 feet 9023-9023 feet 9021-9022 feet 9023-9023 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and See Attachment See Attachment true vertical depth) See Attachment 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: SCANNED N 2017 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 260 20842 180 1356 789 Subsequent to operation: 613 16980 432 1052 749 14.Attachments:(required per 20 MC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations RI Exploratory 0 Development IJ Service 0 Stratigraphic 0 Copies of Logs and Surveys Run ❑ 16.Well Status after work: Oil D Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG ❑ GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Haffener,Jordan Contact Name: Haffener,Jordan Authorized Title: Production Engine Contact Email: Jordan.Haffener(dlbp.com Authorized Signature: �r' ) Date: yT/�Gf 7 ` Contact Phone: +1 9075645383 Form 10-404 Revised 04/201 " • J I I%/. lei*�j �y RBDMS S �V A�({� Z017 / 1� tY� t41 N Submit Original Only • • RECEIVED AUG 14 2017 AOGCC Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary August 1, 2017 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for Setting of a Plug and Adding Perforations for Well D-31 B, PTD # 212-168. Sincerely, 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 • • Packers and SSV's Attachment PBU D-31B SW Name Type MD TVD Depscription D-31 B TBG PACKER 9272.75 8854.57 4-1/2" Baker S-3 Perm Packer D-31B PACKER 9305 8872.79 4-1/2" Baker KB LT Packer D-31B TBG PACKER 9367.65 8907.52 4-1/2"TIW HBBP Packer D-31B PACKER 9638.84 9027.06 5-1/2" BAKER ZXP PACKER D-31B PACKER 11720.81 9005.59 4-1/2" Baker ECP Packer • • • m 0 N N N M N 0 0 0 0 O ,r T v cp 0 0 P 0 0 N 0 0 V , r , N i N 0 0 0 0 0 0 0 0 0 0 01 Tr N COOe, M 01 0 V V' m r- 0 00 00 CO O" 00 00 O 00 00 0 M M M to O O N T' O O N M M N OOO CAO00000CD M O O D 00 0) O co 00 Co CI lllllllllll I- 00 N- CO M M 000 1- CV O M M M 0 0 00 CA O 0 M 0 01 0 CA 0) CO 00 CT CD 00 000 ty c- � Trcoc) DO r- '— (N 'Cr 00 00 07 d' N N M M M O) M CDT- 1- M 0) = O O 0 M/ 0 4.0 W Q l"' 00 N- CO O V- 1- M CD N 00 CO O M M M M M N- N- OO M) M) ( O C M Mj C M 1- a 0 0 0 000 0 \ O0 O 0) W O O 0 0 - M NI -JOJO0, J N O *k M CO CO• LO *k O •� r- • VNN01000N- CONT- U - Tr ;0 00 CV V � - N 43 LC? - CV m G j Oo c- I` N c\- N 4 t — ' 0 C)00 00 0 N- N- M n- p CO 00)) tf) J CM V M CO '- N M O W W W w F- C1O QQQ CI- WOO 'yowW W W m O < M M 2 C) 0WWWWWWWWZZ Z w W W W W W W W m m O = Z Z Z Z Z Z Z D D V vi _ J J J f- H - ' • S _ m .92 a \ k U w D / 03 c ■ _ -J 0_72@ 0- x , \ o cuo5 _ � o - ® 2 g 2 & 0 / 2 § ¥ o © n b m _ g 2 w Cr) o a co o 0 = C � 2p ■ ' a)- 0 . CO n : = co, 6 2 c & -0 E T; _3 K o 32 � 22 ° � coE � ) § ig k k \ k O . o# @ E 2 m 2 § U �f _0 o 7$ f m E ■ - 2 di 12 cn / o g § >- t 7 2 K t w k / � t o 7 cc a) U 1p 28@ co _I b 2 m .§ E E I" 2 73 22 CO k § u- co k % i0 2 § 0_ CD RJ % cow / Jt/ a) < k � � ® O m a n 71 = o CI: e-%(1) CDC' a c .c / _ = ƒ fCO0@a� nf = \% 5 � � �\ � •� � � M a •—,c t b o = _ . u_ 0= a § mo00-q o � 2 ' 050 (07-000_.- .e o � 3 � 0) c) 2I Q. k2k [ k/ 7c . - k2 - ■ o e o G - w = o 0 0 Ce o t E o C o R n Q ■ o ® ■ cn o q o ® � q m U m « o o 0.. 2 L- t - & \ a t .- / CI / 2 � k / ¥ / § ° � gi_ h � k � O � ƒ% » Qu - -0a � 0x6 . / ■ \ 22 ? 2 / ff § Xgb & LG \ \ t 7' k - k c b i ® E o 0. / § _# ƒ -4 q 2 Nr � � Q ■ � § t k & © b % Rne k ƒ - _ _• 2 _02 / k � -) & / 7t / \ £ 1- ƒ q � � 2 Q - G ,- Q 2 o_w 2 � Q Fe : \ k w a N. w ¥ I- q / CS) qo / / ,-- gg = � a c CO « TREE= 4-1/16"CIN • EAD ' ACTUATOR = FMC D-31 B 4-1/2"SAFETY HROME TBG***TO S ABOV��E UNK2UE ai ACTUATOR= BAKER C .„ NfT1AL KB,Ell 82.93' IOVERSHOT @ 9305'PER SL MCNL ON 06/05/13 "•• BF.ELEV= 40-78' t KOP=---_ _ 2074' I 2110' I—I4-1/2'HES X NP,D=3.813" Max Angle= 96'@ 9919' Datum MD= 9323' Datum TVD= 8800'SS GAS LFT MANDRELS ST MDI TVD DEV TYPE VLV `LATCHI PORT DATE BK 16 06/20/13 1 a3/a"CSG,45.5#,L-80 BTC,D=9.953' I-� 3216' 4 3433 f 3416 0 KBG-2 DOW I 3 5559 5427 29 KBG-2 SO BK 20 06/20/13 2 7349 7065 6 KBG-2 DM' BK 0 01/27/04 1 9179 8800 53 I KBG-2 I DMY BK 0 01/27/041 Minimum ID = 2.35" @ 9305' I I 9247' H4-1/2-HES XNP,C=3-813" I 4-1/2" B K R KB L N R TOP P K R 11 9258' .1---14-112-x 7-5/8' BKR S-3 PKR D=3 875" I j 9281' I-4-1/2"HES XNIP,D=3.813" I 4-1/2'TBG, 12.6#. 13CR-80 VAM TOP, 9292' -0152 bpf,ID=3.958" 9305' 4-1/2'BKR KB LIP,D=235'(06/20/13) I I 9305' I--17-5;8"X 4-1/2'UNIQUE MACHINE OVERSHOT I4-1/2"TBG STUB(01/29/04) I—I 9305' -- ` 9318' J--13-70"DEPLOY SLV,ID=3.00" I I ESTIMATED TOC(05/04/13) I— 9315' 9355' —14-lin-Es X NP,D=3.813' I ,_4 J 'el` We: 4 9366' 7-5/8'X 4-12'TNV HBBP T I TBG PUNCH(04/30/13)I--I 9368' _9372'I , � HD=3.915' 4- a � 9390' J-- $I4-1/2"IX NP,D=3.813" I Nrjf f* 9412' I-f4-1/2"HES XN NP,PALLED TO 3.80'(12/08/12) I ' 4-1/2"TBG, 12.6#,L-80 BTC-M, I—I 9424' -0r%• rtie. 9424' H4-1/2'WLEG,D=3.958' I BEHIND .0152 bpf,D=3-958' i` m I 9423' I- ELMO TT LOGGED 05/13/97 I• CT LNR 3-1/2'LNR, 9,3#,L-80 STL, 9381' 4,10... AdP% .0087 bpf,D=2.992' I j�j`r 9381' —13-1/2"X 3-3/16'XO,D=2,786' I 16 a I SET W-IPSTOCK(12/06/12) H 9398' I ►� I!f 7-5/8'CSG,29.7#,USS 95 BTC-M,ID=6.875" I-I —9398' I\ `4i #4 E PERFORATION SUMMARY 7-5/8"MILLOUT WINDOW(D-31B) 9399'-9407' REF LOG:M i'1 JGR/CCL/SLB ON 06/05/2013 1 I ANGLE AT TOP FERE 92°@ 10200' 1 Note:Refer to Roduction DB for historical pert data — L 10609' --L3-1/4"WFT CSP(06119/i 7) SIZE SPF ' INTERVAL Opn/Sqz SHOT SQZ , 2" 6 10200- 10260 0 06/21/17 i 2' 6 110300- 10360 0 06/20/17 I 10794' 1-13-1/4"X 2-7/8'XO,D=2.377" I 2" 6 10560- 10620 C 08/21/13, 2" 6 10680- 10740 C 08/21/13 2" 6 11130- 11330 C 06/05/13 I 11083' H2-7/8"WFD CEP(08/20/13) I I3-1/4'LNR,6,6#,L-80 TC11, 0079 bpf,ID=2.850' I-f 10794' I I PBTD H 11337' I I2-7/8"LW,6.5#,L-80 STL,.0058 bpf,D=2.441" H 11373' I I DATE I REV BYCOMMENTS DATE REV BY COMMENTS '05/08/96 I D9 IIINTIAL COMP(PLUG BACI 09/10/13 I I WJMD SET CEFI'ADFERFS(08120-21/13) VVELL. 0-316 UNfT 05/31/96, D9 (SIDETRACK(D-31A) 11/25/13 TTRIJMD CORRECTION TO ADFERF TY PO r 01/31/041 N46 RWO 12/29/15 DGB/TLH LTFYSTU3 DIC CORRECTIONS FERMI No `50-029- JJ API No 50-02122672-02 i 06/07/13}NOR1C 1 CTD SIDETRACK(D-31A) 07/06/17 MSS/JMD SET CuRADFERFS(06/1121/17) SEC 23,T11N,R13E, 1945'FSL&1068'Fa 06/10/13 I BC/JMD DRLG HO CORRECTIONS 07!02/13 IRCT/PJC SET LTP/GLV GO(6/20/13) BP Exploration(Alaska) C 0 d 0 d N m m J N Cal9 D N N 7 I I W N N d o d co o pCO J p N m ° a O1 p O1 a p 0 W W JI NZ I Z I Z d J 1 LT- LI Q m N O !r 0 d' co I- J1 JI z Q N U ail p Z p H Z H Z -6 Q a w 9 5 } m IEE Iv) c7 m ' M o Z z col › 0 m 1- m JI I j JI d1 0 ' a LI LL co •v n. a. 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O uj U U 1 M = • o s , N - a O oE a r UN /Z c 0 m >- >- } E c^ Q V a I— Z o vs 5r_ Z M coG • N O C 17; CS I Q Co c a) E CO m co o 1— E II W O • w o a) E 6, y A Q Q03 C p1 01 Q ;` QO -To-- N N , 'VIII- a m c g a Q o a g cco O Z E "PI, D E U o o V\ 1 z � I a7 O N N Q N N N co a) co N >- >- >- O / >Q c >, co ap > /CC r v E w NI- N N • c C •> a) y W C1 Q' .c ° • " ca U Q m o ili v Z c O - o o Q o Q E. 1 c U v < 0 a� C C 1 co CUA a -5, a a CC E l a Cj Zti E Q E 2 a) O o aa) o o STATE OF ALASKA RECEIVED • F. AKA OIL AND GAS CONSERVATION COMM,_..)ION SEP 1 6 2013 REPORT OF SUNDRY WELL OPERATIONS /A� 1.Operations Abandon U Repair Well 1 Plug Perforations U Perforate U Others ' `���� Performed: Alter Casing ❑ Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time ExtensionD Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended Weill] 2 Operator 4.Well Class Before Work: 5.Permit to Dnll Number Name BP Exploration(Alaska),Inc Development El ' Exploratory ❑ 212-168-0 3 Address P 0 Box 196612 Stratigraphidj Service ❑ 6.API Number Anchorage,AK 99519-6612 50-029-22672-02-00 ' 7 Property Designation(Lease Number) 8 Well Name and Number. ADL0028285 ' PBU D-31B 9 Logs(List logs and submit electronic and printed data per 20AAC25 071): 10.Field/Pool(s): PRUDHOE BAY,PRUDHOE OIL. 11 Present Well Condition Summary: Total Depth measured 11370 feet Plugs measured 11083 feet true vertical 9021 56 feet Junk measured None feet Effective Depth measured 11083 feet Packer measured See Attachment feet true vertical 9023 71 feet true vertical See Attachment feet Casing Length Size MD ND Burst Collapse Structural None None None None None None Conductor 76 20"91 5#H-40 42-118 42-118 1490 470 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate None None None None None None Production 9382 7-5/8"29 7#13CR80 36-9398 36-8923.98 6890 4790 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 10560-10620 feet 10680-10740 feet 11130-11330 feet True Vertical depth 9022.56-9022 82 feet 9021.25-9021.92 feet 9023 09-9023.38 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12.Stimulation or cement squeeze summary Intervals treated(measured) Treatment descriptions including volumes used and final pressure 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation. 458 33304 4 0 934 Subsequent to operation 596 3309 628 1385 227 14 Attachments 15 Well Class after work Copies of Logs and Surveys Run Exploratory Development❑✓ Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16 Well Status after work Oil Q • Gas U WDSPLU GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUGO 17.I hereby certify that the foregoing is true and correct to the best of my knowledge Sundry Number or N/A if C O.Exempt. N/A Contact Garry Catron Email Garry.Catront( BP.Coft't Printed Name Garry Catron Title PDC PE Signature ild 64441c_Cd4, Phone 564-4424 Date 9/13/2013 11 L F RBDMS OCT 11 2013 lc/151 i 5 ,00i/&.%* Form 10-404 Revised 10/2012 Submit Original Only Packers and SSV's Attachment ADL0028285 SW Name Type MD TVD Depscription D-31B PACKER 9258 8763.23 4-1/2" Baker S-3 Perm Packer D-31B PACKER 9305 8789.86 4-1/2" Baker KB LT Packer D-31B PACKER 9366 8823.69 4-1/2"TIW HBBP-T Packer Q o o 0 0 0 0 car� �n CDCOCO00 — vo N- vvLnL) O N N U " o 0 0 0 0 0 0 0 co Lo O) <- - M M O) = Co m Co (O O V I-- LoO M M r- N = O r M O) O7 N O7 N- N N N O) O) I- M O) O O O) OO O) W O M W M M O M I H O O) r O) N- N N 4 O M M M M N OO O) O OD m M O) OD M r Op OO CO CO Lo 00 0 m M O) - - O N COO " M N N M 0) M O cM M M M V Mini i l l l l i ▪ CO 14( CNI CO(V m m c,M M M COM m C p ▪ C � J 1- 9 O o ao00aDo 0000ctmm ` o 1. mmcoU JJU , = J J — ;24""_ , • N M *t tf• CO N • O) CoCO V • o O N 4 E0 N ;kr d' M N =CSO CO M CO co r•••- O) G1 - - O M M M J Z 0 � 1- WW co BOO a O LwZZ V Z w w w O c a m m O Z Z_ Z DJD D Daily Report of Well Operations ADL0028285 ACTIVITYDATE SUMMARY CTU#3 w/ 1.5" CT(CTV=22.8) Objective: Set CIBP and Addperf MIRU. MU PDS GR/CCL w/2.3" DJN. RIH and tag TD at 11320'. Log up from 11320' to 9000', paint flag at 11030'. POOH. RIH w/WFT 2-7/8" CIBP assy 8/19/2013 ***Job in Progress*** CTU #3 w/ 1.5" CT(CTV=22.8) Objective-GSO w/CIBP and add 120' perfs Continue RIH w/WFT 2-7/8" CIBP and set with top at 11083'. POH. PT wellbore at 1800 psi for 10 min and lost 17 psi. Cut off 120' of CT for chrome management. MU 2"x30' perf gun & RIH. Tie-in off plug and shoot guns from 10710-10740'. POOH. RIH w/2nd 2"x30' gun and perforate 10680-10710'. POH. RIH w/3rd 2"x 30' gun 8/20/2013 In progress CTU #3 w/ 1.5" CT (CTV=22.6) Objective-GSO w/CIBP and add 120' perfs Continue RIH w/ perf gun #3. Correct depth to CIBP. Perforated 10590-10620'. POOH. MU 4th 2"x30' perf gun & RIH. Correct depth to CIBP. Perforate 10560-10590'. POOH. FP well. Blow down reel. RDMO. Travel to yard for a pipe swap. 8/21/2013 ***Job Complete*** TREE= 4-1/16"CNV VVELLHFMD D-31 4-1/2"CHROME TBG"TOLANOIS ABO E UNIQUE 9571'. *; ACTUATOR= BAKER C INITIAL KB.ELE 82.93' I OVERSHOT @ 9305'PER SL MCNL ON 06/05/13"' BF.ELEV= 40.78' KOP= 2074' 2110' —41 X = 1 Max Angle= 96 @9919' Datum MD= 9323' GAS LFT MANDRELS Datum ND= 8800'SS ST MD ND DEV TYPE VLV LATCH FORT DATE 10-3/4"CSG,45.5#,L-80 BTC,13=9.953" H 3216' 4 3433 3416 0 KBG-2 DOME BK 16 06/20/13 3 5559 5427 29 KBG-2 SO BK 20 06/20/13 2 7349 7065 6 KBG-2 DMY BK 0 01/27/04 1 9179 8800 53 KBG-2 DMY BK 0 01/27/04 Minimum ID =2.35" @ 9305' 9247' —14-1/2FES X MP,D=3.813" 4-1/2" BKR KB LNR TOP PKR 9258' —I4-1/2"X 7-5/8" BKR S-3 PKR,D=3.875" 4-1/2"BKR KB LTP,D=2.35"(06/20/13) —I 9305' _ 9281' H4-1/2"HES X NP,D=3.813• 4-1/2'TBG,12.6#,13CR-80 VAM TOP, —I 9292' — 0152 bpf,D=3.958" 9318' —13-70"DEPLOY SLV,D=3.00" 4-1/2•TBG STUB(01/29/04) —I 9305' .. 9305' —{7-5/s•X 4-1/2"LFAQUE MACF1/�E OVERSHOT ESTIMATED TOC(05/04/13) 9315' 9355' --(4-1/2"HES X fes,D=3.813" .:.i. ; -�1 'Zig. 9366' H7-5/8"X 4-1/711W HBBP-T PKR 13=3.915" TBG PUNCH(04/30/13) 9368'-9372' **C ';. 9390' –{4-1/2•FES X NP,D=3.813" . 9! II .M 'I' 9412' H4-1/2"HES XN NP,MLLED TO 3.80'(12/08/12) ;444-1/2"TBG,12.6#,L-80 BTC-M 9424' V‘i 9424' 4-1/2"WLEG,D=3.958" BEHIND .0152 bpf,ID=3.958- ♦ISI !•I` CT LNR III. I 9423' -EMO TT LOGGED 05/13/97 ♦♦ .•♦ III II III II II/ II i %�� 3-1/2"LNR, 9.3#,L-80 Sit, —1 9381' ► I`I. 9381' -{3 1/2"X 3-3/16"X0,D=2.786" .0087 bpf,D=2.992" 1,;f' . I%I‘ - ` I,I` SET VVHPSTOCK(12/06/12) —1 9398' r e •"II 7-5/8"CSG,29.7#,USS-95 BTC-M,D=6.875" - -9398' •A I` %l • ,I`I` a II 7-5/8"MILLOUT WINDOW(D-31B) 9398'-9407' PBZFORbATION SUMMARY X`I`I; REF LOG MCNIJGR/CCUSLB ON 06/05/2013 ieil� ANGLE AT TOP PERF:87°@ 10560' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sgz SHOT SQZ 2" 6 10560-10740 0 08/21/13 2" 6 10680-10740 0 08/21/13 10794' —I3-1/4"X 2-7/8"XO,D=2.377" 2" 6 11130-11330 C 06/05/13 Hi. 11083' H2-7/8'WFD CBP(08/20/13) 3-1/4"LNR,6.6#,L-80 TC11,.0079 bpf,D=2.850' —I 10794' PBTD — 11337' 2-7/B"LNR,6.5#,L-80 STL,.0058 bpf,D=2.441" —i 11373' 1 A DATE REV BY COM/UNITS DATE REV BY COMENTS PRIJDHOE BAY UNIT 05/08/96 D9 IIMTIAL COMP(PLUG BALI 01/09/00 SET/PJC SET IBP WELL: D-31B 05/31/96 D9 SIDETRACK(D-31A) 08/10/13 DIS/PJC PULL BP(08/07/13) PERMT No:11121680 01/31/04 N4ES RWO 09/10/13 TTR/JMD SET CBR/ADPERFS(08/20-21/13) API No: 50-029-22672-02 06/07/13 NORDIC 1 CTD SIDETRACK(D-31A) SEC 23,T11 N,R13E,1945'FSL&1068'FEL 06/10/13 BG/J1,43 DRLG HO CORRECTIONS 07/02/13 RCT/PJC SET LTP/GLV CIO(6/20/13) BP Exploration(Alaska) )ATA LOGGED %/Z/2013 _ � v�'�' V. ��,. M K BENDER ,;l ,r7,1 , r��• BAKER PRINT DISTRIBUTION LIS' G0520i3 HUGHES AOGCC, COMPANY BP Exploration(Alaska) Inc. INTERMEDIATE FINAL Yes (mandatory) WELL NAME 20 WELLS RUN NUMBER 2A2.'7 (mandatory) FIELD Prudhoe Bay BH SALESMAN Jesse Salyer (mandatory) (mandatory) COUNTY North Slope Borough BH DISTRICT Alaska (mandatory) (mandatory) STATE Alaska PAGE OF (mandatory) LOG DATE: TODAYS DATE: 7/30/2013 (mandatory) DISTRIBUTION LIST AUTHORIZED BY: BP Exploration(Alaska)Inc. (mandatory) HAS CLIENT BEEN INVOICED FOR ADDITIONAL PRINTS? COMPANY CFIELD FINAL (digital/ ADDRESS(FEDEXWILL NOT DELIVER TO P.O.BOX) LOGS LOGS image) FILM PERSON ATTENTION #OF PRINTS #UI-1-KIN I S #OF COPIES #OF COPIES 1 BP Exploration(Alaska)Inc. 3 1 1 I I Petrotechnical Data Center LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 2 ConocoPhillips Alaska Inc. I 1 Attn Ricky Elgarico PO Box 100360 Anchorage,Alaska 99510 3 ExxonMobil,Alaska 1 1 1 1 1 Atli 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 DNR-Division of Oil&Gas I J 1 I 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: #REF! #REF! #REF! #REF! #REF! #REF! )&A LOGGED 1 -1/2013 MV .MKBENDER PRINT DIST I': RECEIVED STATE OF ALASKA JUL 0 3 2013 ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LdJGCC la. Well Status: • ®Oil ❑Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class 20AAC 25 105 20AAC 25 110 ; 0 Exploratory 0 Stratigraphic 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One \ •®Development 0 Service 2. Operator Name: 5.Date Comp.,Susp,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. • 6/6/2013 212-168 • 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 5/22/2013 ' 50-029-22672-02-00• 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 6/3/2013 . PBU D-31B 1945' FSL, 1068' FEL, Sec.23,T11 N, R13E, UM 8. KB(ft above MSL): 82.93' • 15.Field/Pool(s) Top of Productive Horizon: 1833' FSL,2241' FEL, Sec.23,T11 N, R13E, UM ' GL(ft above MSL): 45.3' • Prudhoe Bay/Prudhoe Bay . Total Depth: 9. Plug Back Depth(MD+TVD) 3333' FSL,2930' FEL, Sec.23,T11 N, R13E, UM 11337' 9023' • 4b Location of Well(State Base Plane Coordinates,NAD: 10.Total Depth(MD+TVD) 16. Property Designation: Surface: x- 654122 y- 5957666 Zone- ASP4 11370' 9022' ' ADL 028285 TPI: x- 652951 y- 5957530 Zone- ASP4 . 11.SSSV Depth(MD+TVD) 17. Land Use Permit: Total Depth:x- 652231 y- 5959017 Zone- ASP4 None 18. Directional Survey: ®Yes ❑No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL . 1900'(Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22.Re-Drill/Lateral Top Window MD/TVD: MWD/GR/RES / 9398' 8924' • 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT 1 CASING WT.PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# H-40 Surface 110' Surface 110' 30" 260 sx Arctic Set(Approx.) 10-3/4" 45.5# L-80 35' 3216' 35' 3199' _ 13-1/2" 1080 sx PF'E', 375 sx Class'G',260 sx PF'E' 7-5/8" 29.7# S-95/13Cr80 36' 9398' 36' 8924' 9-7/8" 493 sx Class'G' 3-1/2"x 3-1/4" 9.3#/6.6# L-80 9305' 11370' 8873' 9022' 4-1/4" 102 sx Class'G' x 2-7/8" /6.5# 24. Open to production or injection? ®Yes 0 No 25. TUBING RECORD If Yes,listo each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ND (MD+TVD of Top&Bottom;Perforation Size and Number)• ) 2"Gun Diameter,6 spf 4-1/2", 12.6#, 13Cr80/L-80 9424' 9258'/8846' 9366'/8907' ila �� ` 26 ACID,FRACTURE,CEMENT SQUEEZE,ETC. 11130'-11330' 9023'-9023' � q�l,3 WAS HYDRAULIC FRACTURING USED DURING COMPLETION?❑Yes ®No t,_� DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED -----. ._ 2500' Freeze Protect w/50 Bbls Diesel 27 PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc June 22,2013 ' Flowing Date of Test Hours Tested Production For OIL-BBL: GAS-MCF. WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 6/24/2013 • 6 Test Period 4 101 7402 0 100 73469 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 1310 1080 24-Hour Rate ♦ 403 29608 0 N/A 28 CORE DATA Conventional Core(s)Acquired? 0 Yes 0 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 - 8 2013 Form 10-407 Revised 10/2012 V vF:' h, /J3 CONTINUED ON REVERSE ole Submit Original Only G 29. GEOLOGIC MARKERS(List all formations ani ,cers encounter 30. FORMATION TESTS NAME MD ND 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. 23SB/Zone 2B 9491' 8973' None 21 TS/Zone 2A 9640' 9027' • Formation at Total Depth: Zone 2A 9640' 9027' 31.List of Attachment: Summary of Daily Drilling Reports,Well Schematic Diagram,Surveys 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Brad Gorhan,564-4649 Email: Bradley.Gorham@bp.com Title: Drilling Technologist Printed Name: Joe Lastufke Signature: 11- . Phone 564-4091 Date: 1 /5// INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 10/2012 Submit Original Only TREE= 4-1/16'CM( WELLHEAD= FMC D-31 B SAFET TES: WELL ANGLE<70*@ 9571'. *** ACTUATOR= BAKER C 4-112"CHROME TBG***TOL IS a I eVE UNIQUE MAL KB.EU 82.93 I I OVERSHOT @ 9305"PER SL MCNL ON 06/05113*** BF.ELEV= 4018' KOP= 2074' I 2110' —4-1/2"HES X NP,El=3.813" Max Angle= 96°@ 9919' Datum IAD= 9323' GAS LIFT MA ICRELS Datum TVD-= 8800'SS ST MD TVD DEV TYPE VLV LATCH PORT DATE 10-3/4"CSG,45_5#,L-80 BTC,ID=9.953" — 3216' 4 3433 3416 0 KBG-2 DOME BK 16 06/20/13 3 5559 5427 29 KBG-2 SO BK 20 06/20/13 2 7349 7065 6 KBG-2 DMY BK 0 01/27/04 1 9179 8800 53 KBG-2 MY BK 0 01/27/04 Minimum ID =2.35" @ 9305' 9247' H4-112"HES X NP,ID=3.813" 4-1/2" BKR KB LNR TOP PKR 9258' —i4-1/2"X 7-5/8" BKR S-3 PKR,ID=3.875" 4-1/2"BKR KB LW,ID=2.35"(06/20/13) --1 9305' NEI 9281' —I4-112-HES X NP,ID=3.813" . . 4-1/2"TBG, 12.64,13CR-110 VAM TOP, --I 9292' -----........_ 9318' H 3-70"DEPLOY SLV,ID=3.00" .0152 bpf,13=3.958" 1 9305' —17-5/8"X 4-1/2"UNIQUE MACHINE OVERSHOT 4-1/2"TBG STUB(01129(04) H 9305' ESTIMATED TOC(05/04/13) 9315' 9355' —4-1/2"HES X NP,ID=3_813' I MI lije Altb. ._ 9366' H7-5/8"X 4-112"TIW FIBBP-T PKR,ID=3.915" TBG PUNCH(04130/13) —I 9368' -9372" 11 9390' —14-1/2-HES X NP,ID=3813" lk lir 9412' —14-1/2"HES XN NP MILLED TO 3.80"(12/08(12) 4-1/2"TBG, 12.6#,L-80 BTC-M, --i 9424' ese - 9424' H 4-1/2"WLEG,ID=3.958" BEHIND 7 -4 ek.,,,,• .0152 bpf,ID"3.956" ir.,,,4.41 671.-„,:: 0-7- 9423' —I ELMD TT LOGGED 05/13/97 CT LNR ';;,.so •ti ilk- I ri,..#,e 41/ litio.. • 3-1/2"LNR, 9.3#,L-80 STL, — 9381' 1 % : 9381' —[3112"X 3-3/16"XO,ID=2.786" 4. •kt .0087 bpf, ID=2.992" e if e 4IP ; Alto 1 Alb.% SET VVHIPSTOCK(12/06/12) —I 9398' 4 I 41 li•1 1 ell I tell• 7-5/8"CSG,29.7#,USS-95 BTC-M,ID=6.875" —I —9398' 1n b4, iii liok..licil 7-5/9"MILLOUT WINDOW(D-31B) 939W-9407" PERFORATION SUMARY 4* . REF LOG:IVICNUGR/CCUSLB ON 06/05/2013 ANGLE AT TOP FERE:90°@ 11130' Nate:Refer to Production DB for historical perf data SIZE SFR I'ITER/AL Opn/Sqz SHOT SQZ 10794" —13-1/4"X 2-7/8"X0,ID=2_377" 2" 6 11130-11330 0 06/05/13 / 1 3-1/4"LNR,6.6#,L-80 TC11,.0079 bpf,ID=2.850" ---1 10794' PBTD H 11337' _lai 2-7/8"LNR,6.5#,L-80 STL,.0058 bpf,ID=2.441" —1 1137O , DATE REV BY CONINENTS DATE REV BY ODMIVENTS FRUDHOE BAY UNIT 05/08/96 [0 IIMTIAL COMP(PLUG BACK) WELL: D-31B 05/31/96 D9 SIDETRACK(D-31A) PERMIT Isio:'2121680 01/31/0,4 N4ES RWO All No: 50-029-22672-02 06/07/13 NORDIC 1'CTD SIDETRACK(D-31A) SEC 23,T11N,R13E,1945'FSL&1068'FE.. 06/10/13 BG/JIVID DRLG HO CORRECTIONS 07/02/13 RCT/PJC SET LW/GLV C/0(6/20/13) BP Exploration(Alaska) i North America-ALASKA-BP Page 1 of 8 Operation Summary Report Common Well Name:D-31' AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:DRILL(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/11/2012 100:00 - 06:00 6.00 MOB N PRE GREASE ALL VALVES IN REEL HOUSE,PIPE SHED AND ON STACK AND PERFORM LIGHT MAINTENANCE ON RIG. 06:00 - 18:00 12.00 MOB N PRE STRIP AND WELD AREAS ON PIT TRANSFER LINE. REBUILD CHOKE VALVE#12. DEMOB ALL SPARE PUPS FROM RIG. LOAD FREIGHT THAT ARRIVED AND OFFLOAD MATERIALS FOR SENDING BACK TO STORES AND YARD FROM RIG. GREASE ALL VALVES ON RIG. REPAIR AUTO SPOOLER ON HYDRAULIC WINCH. 18.00 - 00:00 6.00 MOB N PRE STRIP DOWN SHAKER AND INSPECT WEAR POINTS. GRIND AND CHIP TO PREPARE FOR PAINTING. CLEAN AND INSPECT SPARE TEXAS OIL TOOL(TOT)RAMS. CONDUCT 'MAINTENANCE ON BOP TEST PUMP. REPORT FROM CH2MHILL IS THAT CRANE CONDUCTING SITE PREP HAS MECHANICAL FAILURE AND IS ROLLING OFF LOCATION FOR REPAIR OR SWAP OUT. 12/12/2012 00:00 - 06:00 6.00 MOB N PRE CONDUCT MAINTENANCE ON SHAKER. DEMOB OUTER STAIRS FROM RIG IN PREPARATION FOR MOVE. DRILL SITE MAINTENANCE AND CH2MHILL BACK ON LOCATION AT 0145 HRS TO RESUME PAD PREP OVER D-31. 06:00 - 18:00 12.00 MOB N PRE CONTINUE MAINTENANCE RIG&SAT CAMP ARE READY TO MOVE VALVE CREW IS ALMOST DONE TESTING THE TREE TOOL SERVICES WILL START LEVELING AS SOON AS THE VALVE CREW IS OUT OF THE WAY 18:00 - 19:00 1.00 MOB N PRE VALVE CREW COMPLETED TESTING TREE. MEET WITH TOOL SERVICE,DISCUSS GRADE OF PAD. CONDUCT PRE-SPUD WITH CREW. 19:00 - 00:00 5.00 MOB N PRE BEGIN GRADER AND GRAVEL OPERATIONS. RIG CREWS CONTINUING WITH PAINTING OF SHAKER AREA. MOVE WELDING SHOP TO OTHER SIDE OF PAD. PREP HANDLING EQUIPMENT FOR LINER. WARMING UP MOVING SYSTEM FOR MOVE. 12/13/2012 00:00 - 02:00 2.00 MOB N PRE MONITORING MOVING SYSTEM WHILE IT IS WARMING UP. TRUCKS IN POSITION FOR MOVING CAMP. PLACE HEATER ON CUTTINGS BOX TO PREPARE FOR VAC TRUCK AND EVENTUAL MOVE. 02:00 03:00 1.00 MOB P PRE INSPECT PREP AREA FOR MOVING RIG OVER WELL. DIRECT FINISHING GRADING AND LEVELING. VERIFY GAUGE PRESSURES AT 0 PSI,CONFIRM CLOSED MANUAL VALVES ON TREE. 03:00 - 03:30 0.50 MOB P PRE PLACE T-MATS AROUND CELLAR Printed 7/2/2013 10:29:17AM North America-ALASKA-BP Page 2 of 8 Operation Summary Report Common Well Name:D-31* AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:DRILL(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 04:00 0.50 MOB P PRE PJSM ON RIG MOVE. DISCUSS RISKS ASSOCIATED WITH COLD TEMPS(-31°). ASSIGN POSITIONS,EMPHASIZE STOP, DISCUSS ACCESS ROAD THAT RIG WILL BE MOVING DOWN. ENSURE EVERYONE HAS PROPER GEAR. 04:00 - 04:15 0.25 MOB P PRE CONDUCT LAST WALK AROUNDS,PULL OFF D-19 WITH NO ISSUES. MOVE LOADER AND SPOTTER OUT IN FRONT OF RIG. • 04:15 - 05:00 0.75 MOB P PRE MOVE RIG ACROSS PAD AND DOWN ACCESS ROAD TO D-31 05:00 - 09:00 4.00 MOB N RREP PRE RIG WILL NOT CLIMB THE LITTLE SLOPE ON THE ACCESS ROAD TO GET ON THE PAD. TROUBLESHOOT DRIVE SYSTEM. UPDATE GIVEN TO AOGCC REP AT 0530 HRS OF PROBLEMS WITH RIG. 09:00 - 10:00 1.00 MOB N RREP PRE I TRY WARMING UP DRIVE SYSTEM,BACK UP BACK TO THE PAD WE CAME OFF OF THEN TRY AGAIN • 10:00 - 10:30 0.50 MOB N RREP PRE 3 ATTEMPTS FAILED TO MAKE IT ONTO THE PAD,MOVE RIG BACK TO THE FRONT PART OF D-PAD AND CALL NORDIC OFFICE TO SEE IF THEY WANT TO CHANGE DRIVE PUMPS OR •CALL FOR CATS 10:30 - 10:45 0.25 MOB N RREP PRE NORDIC WANTS TO CALL FOR CATS TO PULL THE RIG ONTO THE PAD NOTIFY CTD SUPERINTENDENT AND DRILLING HSE ADVISOR TO PERFORM A LEVEL 2 RISK ASSESSMENT 10:45 - 16:30 5.75 MOB N RREP PRE FURTHER TROUBLESHOOTING FOUND A BAD HYDRAULIC MOTOR.R&R MOTOR,SUSPEND L2RA FOR NOW 16:30 - 18:00 1.50 MOB N RREP PRE HYDAULIC MOTOR REPLACED START ROLLING TIRES TO WARM DRIVE SYSTEM. CONDUCT CREW CHANGE OUT. 18:00 - 19:00 1.00 MOB N RREP PRE CONDUCT FINAL INSPECTION ON MOVING SYSTEM WHILE TAKING ON FUEL. PJSM ON MOVING RIG TO D-31. 19:00 - 20:30 1.50 MOB P PRE MOVE RIG ACROSS PAD TO D-31. WORK RIG UP INCLINE WITH NO ISSUES. POSTION RIG TO MOVE OVER 0-31. MOVE OVER WELL. CLOSE DOORS,SET RIG DOWN. RIG ACCEPT AT 2030 HRS. 20:30 - 22:30 2.00 MOB P PRE STAGE SUPPORT EQUIPMENT. PREPARE RIG FOR OPERATIONS. MOBILIZE ADAPTER FLANGE TO NU BOP TO TREE. STAGE CUTTINGS BOX AND TIGER TANK. UPDATE GIVEN AT 2220 HRS TO AOGCC REP OF TENTATIVE BOP TEST TIME OF 0400 HRS. • 22:30 - 00:00 1.50 MOB P PRE CONDUCT LEAK TIGHT PRESSURE TEST AGAINST TWO BARRIER VALVES PER WELL PLAN CRITERIA TO REMOVE SWAB CAP. 12/14/2012 00:00 - 01:00 1.00 BOPSUR P PRE TIGER TANK HARD LINE RIGGED UP AND TESTED TO 4000 PSI. BEGIN TO NU BOP ADAPTER FLANGE SPOOL TO TREE. RE-BUILD KILL LINE CHECK VALVE. Printed 7/2/2013 10:29:17AM North America-ALASKA BP Page 3 of Operation Summary Report Common Well Name.D-31' AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:DRILL(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor NORDIC CALISTA UWI: Active datum.Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task 1 Code NPT NPT Depth 1 Phase Description of Operations (hr) (usft) 01:00 - 04:30 3.50 BOPSUR P PRE CONTINUE WITH NU OF BOP ADAPTER FLANGE SPOOL TO TREE. INSTALL HOT TUB AROUND BOP LUBRICATOR EXTENSION. OBTAIN RKB MEASUREMENTS. NU COMPLETE. RECEIVED NOTIFICATION FROM AOGCC THAT WITNESS OF TEST WAS I WAIVED. 04:30 - 05:15 0.75 BOPSUR P PRE MOBILIZE TEST JOINT,FUNCTION TEST RAMS BEFORE FLUID PACKING STACK FOR _ 'BODY TEST. 05:15 - 06:00 0.75 BOPSUR P PRE STRING OUT LINES,FLUID PACK STACK 06:00 - 06:30 0.50 BOPSUR P PRE CREW CHANGE 06:30 - 14:00 7.50 BOPSUR P PRE PERFORM ACCUMULATOR DRAW DOWN TEST. -STARTING ACCUMULATOR PRESSURE= 3,050 PSI -FINAL PRESSURE AFTER FUNCTIONING ALL PREVENTERS AND HCR=2,050 PSI -18 SEC TO BUILD 200 PSI,107 SEC TO FULL PRESSURE. -3 NITROGEN BACKUP BOTTLES WITH 1900 PSI. PERFORM FULL BODY SHELL TEST TO 25OPSI LOWAND 4,500PSI HIGH.GOOD TEST. CHART RECORDER IS BEING USED AND THE 1 ELECTRONIC DATA IS BEING RECORDED ON THE CTDS"SHUT IN&WHP"SENSORS 14:00 - 16:30 2.50 BOPSUR P PRE CLEAR RIG FLOOR OF BOP TEST EQUIPMENT. PREPARE FOR TESTING INNER REEL VALVE 16:30 - 17:00 0.50 BOPSUR N PRE WORKING ON FLOW CONTROL VALVE ON PUMP FOR HYDRAULIC WINCHES 17:00 - 17:30 0.50 BOPSUR P PRE CONDUCT RIG EVAC DRILLAND MUSTER AT PRIMARY MUSTER AREA. CONDUCT AAR AND REVIEW RESPONSE PROCEDURES. MOBILIZE BACK TO RIG. 17:30 - 20:30 3.00 RIGU P PRE PICK UP INJECTOR,STAB ON AND PREPARE FOR DISPLACING METHANOL IN COIL. DISPLACE METHANOL,PUMP FRESH WATER AROUND. PRESSURE TEST AGAINST INNER REEL VALVE. GOOD TEST. PUMP E-LINE BACK. POP-OFF,INSPECT FOR E-LINE. ALL GOOD. STAB BACK ON,BLOW BACK WITH AIR TO PREVENT FREEZE UP. -CONCURRENT OPS:FUNCTION TEST FLOW CONTROL VALVE. PULL TEST TO 3000 POUNDS,GOOD TEST WITH NO SLACK OFF ONCE HYDRAULICS SHUT DOWN. 20:30 - 21:00 0.50 RIGU P PRE PJSM FOR CHROME MANAGEMENT. CONDUCT H2S RIG EVACUATION DRILL, MUSTER AT PRIMARY MUSTER AREA CONDUCT AAR AND DISCUSS EMERGENCY RESPONSE PROCEDURES. GIVE ALL CLEAR. Printed 7/2/2013 10:29:17AM North America-ALASKA-BP r Page 4 of 8 ., P Operation Summary Report ;f «o' Common Well Name.D-31' AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date 12/11/2012 End Date:12/17/2012 X3-012WwC:DRILL(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 00:00 3.00 RIGU P PRE CUT COIL CONNECTOR OFF. RU COIL CUTTER TO INJECTOR. CUT 95'OF COIL AND SEE E-LINE. CALCULATED LENGTH WAS SUPPOSED TO BE BETWEEN 220-AND 275'. DROP OFF COIL CUTTER,STAB BACK ON WITH INJECTOR. FILL COIL TO PREPARE TO PUMP BACK AGAIN. PUMP BACK,CONFIRM -COIL MOVEMENT. MAKE SECOND ATTEMPT TO ENSURE NO MORE MOVEMENT. BLOW BACK WITH AIR. POP OFF,RIG UP COIL CUTTER TO INJECTOR AGAIN. CUT ADDITIONAL 180'OF COIL FOR TOTAL OF 275' OF COIL TO GET TO THE E-LINE,ENSURING 2%SLACK(1-1/2 TO 2%IS NECESSARY FOR OPERATIONS). ICE IN SECTIONS OF COIL BEING CUT. 12/15/2012 00:00 - 00:35 0.58 RIGU P PRE PLACE INJECTOR OVER HOT TUB AND BREAK CIRCULATION TO WARM UP COIL. STAB ON WITH INJECTOR TO PUMP SLACK FORWARD FOR CHROME MANAGEMENT. 00:35 - 02:00 1.42 RIGU N PRE O-RING ON INJECTOR QUICK TEST SUB ROLLED OFF,CAUSING FRESH WATER SPRAY TO RIG FLOOR. IMMEDIATE CREW REACTION TO SHUT DOWN PUMP AND INSPECT AREA. NO DAMAGE TO EQUIPMENT OR PERSONNEL. SAFETY SHUT DOWN OF OPERATIONS. NOTIFIED SUPERINTENDENT. ASSEMBLE CREW TO DISCUSS EVENT,CONDUCT AAR ON DISTRACTIONS AND CAUSE. DISCUSS AREAS FOR IMPROVEMENT TO OPERATION. SEE REMARKS. 02:00 - 02:15 0.25 RIGU P PRE CONDUCT PJSM RTO RE-FOCUS CREW ON PUMPING SLACK FORWARD AND CUTTING COIL BEFORE RESUMING OPERATIONS. 02:15 - 06:00 3.75 RIGU P PRE STAB ON WITH INJECTOR. PUMP SLACK FORWARD. BLOW BACK WITH AIR. POP OFF,MU COIL CUTTER TO INJECTOR. CUT 230'OF COIL. PREPARE END OF COIL FOR INSTALLING COIL TUBING CONNECTOR. INSTALL CONNECTOR. PULL TEST TO 35K. RE-HEAD WITH BAKER INTEQ TOOLS. MEG TEST TOOLS. PRESSURE TEST AGAINST BAKER DUAL FLAPPER CHECK VALVES. 06:00 - 06:30 0.50 RIGU P PRE CREW CHANGE AND PJSM TO CONTINUE OPS 06:30 - 06:45 0.25 RIGU P PRE PT CTS COIL CONNECTOR AND BHI UQC 06:45 - 07:30 0.75 RIGU P PRE STAB INJECTOR ON THE LUBRICATOR AND PUMP SLACK FORWARD 07:30 - 07:50 0.33 RIGU P PRE SLACK PUMPED FORWARD CLOSE THE CHOKE TO PT THE LUBRICATOR 07:50 - 09:40 1.83 RIGU N MISC PRE SSV WON'T OPEN,CYCLE SWAB VALVE TO SEE IF IT'S PRESSURE LOCKED SWAB IS OPEN AND SSV WON'T OPEN, CLOSE CHOKE AND APPLY A LITTLE WHP TO SEE IF IT'S PRESSURE LOCKED.BROUGHT PRESSURE UP SLOW TO 1500 PSI AND NO MOVEMENT.BLEED OFF PRESSURE AND HAVE VALVE CREW TRY Printed 7/2/2013 10:29:17AM North America-ALASKA-BP Page 5 of 8 Operation Summary Report Common Well Name:D-31' AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:DRILL(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UW: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:40 - 10:40 1.00 RIGU N MISC PRE VALVE CREW CANNOT OPEN THE VALVE AS WELL,TREE&WELLHEAD WSL WANTS TO PUT HEAT ON THE SSV BARREL THINKING IT MIGHT BE FROZEN PU INJECTOR AND MU NOZZLE TO JET 75° WATER ON TOP OF THE SSV 10:40 - 11:05 0.42 1 RIGU P PRE NO CHANGE,VALVE CREW IS GOING TO TRY A BLEEDER TOOL ON THE SSV IT MIGHT BE i PRESSURE LOCKED BLEEDER TOOL BLED OFF PRESSURE AND VALVE STROKED OPEN.HOLD PJSM TO REMOVE INJECTOR AND LOAD VALVE CREW LUBRICATOR ON THE RIG 11:05 - 12:05 1.00 RIGU P PRE REMOVE INJECTOR AND LOAD VALVE LUBRICATOR ON THE RIG AND RU TO PULL TWC 12:05 - 13:20 1.25 RIGU P PRE MU TWC PULLING TOOLS PT LUBRICATOR RETEIVE TWC TWC PULLED AND WELL IS ON A SLIGHT VAC AS PER WELL PLAN FOR 0 SITP,CLOSE MASTER&SSV AND CONFIRM LEAK TIGHT TEST 13:20 - 13:55 ' 0.58 RIGU P PRE CONFIRMED NO FLOW FOR LEAK TIGHT TEST,PU LUBRICATOR TWC IS PULLED,RD&LOAD OUT VALVE CREW EQUIPMENT 113:55 - 14:10 0.25 STWHIP P WEXIT CLOSE SWAB VALVE AND PT NIGHT CAP TO OPEN UP TO WELL-250 PSI LOWAND 3500 PSI HIGH 14:10 - 14:15 0.08 STWHIP P WEXIT GOOD PT ON NIGHT CAP,OPEN SWAB,SSV &MASTER 14:15 - 14:55 0.67 STWHIP P WEXIT NO PRESSURE FROM WELL,LINE UP TO FLUID PACK THE WELL WITH METH METH PUMP WAS RIGGED DOWN AND MOVED OUT,MOVE METH PUP BACK IN 14:55 - 15:15 0.33 STWHIP P WEXIT WELL IS FLUID PACKED,REMOVE NIGHT CAP AND WE HAVE A STATIC COLUMN OF FLUID. HOLD PJSM TO MU THE WINDOW MILLING BHA 15:15 - 16:15 1.00 STWHIP P WEXIT MU BHA#1 TO MILL THE WINDOW. 3.79" NOGO,3.80"GO FOR WINDOW MILL. 16:15 - 18:25 2.17 STWHIP P WEXIT PT QTS AND RIH 18:25 - 21:15 2.83 STWHIP P WEXIT TAG PINCH POINT AT 9438'. PU AND DISPLACE WELL. CIRCULATE MUD ALL THE WAY AROUND,OBTAIN SLOW PUMP RATES. MW IN AND OUT 8.5 PPG. 21:15 - 22:15 1.00 STWHIP P WEXIT LOG TIE-IN WITH+5'CORRECTION. SLIGHT TAG AT 9270'(POSSIBLY X-NIPPLE). CONTINUE TO RUN DOWN TO ABOVE WHIPSTOCK DOWN ON PUMPS AND DRY TAG AT 9441.7'. PU,COME ON WITH PUMPS AND RE-TAG AT 9441.1' PUW 40K. 22:15 - 00:00 1.75 STWHIP P WEXIT BEGIN MILLING OPERATIONS AT 9441.1'AT 2.75 BPM,2300 PSI FREE SPIN. MILL INITIAL FOOT AT 1 FPH WITH 1.9-3.9K WOB. VERY SLOW MILLING TO 9441.8'. NO CEMENT IN RETURNS,PREDOMINANTLY FINE METAL SHAVINGS. Printed 7/2/2013 10:29:17AM North America-ALASKA-BP Page 6 of 8 Operation Summary Report Common Well Name:D-31* AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:DRILL(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/16/2012 00:00 - 01:30 1.50 STWHIP N DPRB WEXIT MILLING OPERATIONS. 2250 PSI FREE SPIN AT 2.7 BPM. CONTINUE WITH MILLING MAINTAINING 2.2-3.9K WOB. NOT MAKING PROGRESS AT 9441.8'. SET DOWN AND MOTOR WORK FELL OFF,WOB FELL TO.45K AND DID NOT PICK UP EVEN WHEN SETTING DOWN WITH MORE COIL WEIGHT. 01.30 - 02:15 0.75 STWHIP N DPRB WEXIT 'PICK UP(PUW 39.9K)CLEAN TO 9400'. DOWN ON PUMPS AND RUN BACK DOWN TO DRY TAG TO CONFIRM WHIPSTOCK DID NOT GET PUSHED AWAY. DRY TAG AT 9442.8',SET DOWN 4K. PICK BACK UP AND COME ON WITH PUMPS. FREE SPIN 2230 PSI AT 2.65 BPM. RUN DOWN TO DEPTH AGAIN BUT NO WOB OR MOTOR WORK INDICATIONS. RUN TO 9446.1'WITH NO TAG,NO CHANGE IN PRESSURES,NO WOB. 02:15 - 02:45 0.50 STWHIP N DPRB WEXIT PICK TO 9430'.PUW 38.8K. DOWN ON PUMPS AND RUN DOWN TO DRY TAG AGAIN. TAG AT 9443.5'WITH 3.5K DOWN. PICK UP AND CONSULT WITH DAY WSL. 02:45 - 03:45 1.00 STWHIP N DPRB WEXIT ON WITH PUMPS AND RUN BACK DOWN SLOWLY. SLIGHT TAG AGAIN AT 9270'. CONTINUE RUNNING DOWN AND SEE SOME MOTOR WORK PAST X NIPPLE AT 9360'. FREE SPIN 2220 PSI AT 2.65 BPM. TAG AT 9442.1',STALL AND PICK UP 15'. RUN BACK DOWN AT 2.65 BPM,ENCOUNTER MOTOR WORK AT 9441.7';2.7 BPM,2460 PSI,1.9K WOB. CALCULATE TOP OF WHIPSTOCK PICK UP AND REDUCE PUMP RATE IN ATTEMPT TO RUN BY. MAKE SEVERAL ATTEMPTS WITH VARYING PUMP RATES TO GET BY 9441'. UNABLE TO GET BY WITHOUT SIGNIFICANT MOTOR WORK OR WITH PUMPS OFF. PICK UP OFF BOTTOM;PICK UP CLEAN, 38K PUW. 03:45 - 04:15 0.50 STWHIP N DPRB WEXIT PICK UP 500'AND RUN BACK DOWN. SLIGHT TAG AT 9270'. CONTINUE DOWN TO 9440'. 04:15 - 06:00 1.75 STWHIP N DPRB WEXIT PUMP AT.7 BPM,1075 PSI AND ATTEMPT TO RUN BY 9441'. CANNOT GET BY. PU 15', BRING RATE UP TO MILLING RATE OF 2.7 BPM,FREE SPIN OF 2240 PSI. POP PAST 9441.9'. RUN DOWN,INCREASE IN MOTOR WORK AND WOB AT 9447.3'. PINCH POINT AT 9447'. PAINT FLAG ON COIL. BEGIN TIME MILLING WITH FREE SPIN OF 2245 PSI AT 2.7 BPM,.7-1K WOB. 06:00 - 07:50 1.83 STWHIP N DPRB WEXIT TIME MILL WINDOW FROM 9447.6'AT 2.7 BPM, 2260 PSI,.6-1.6K WOB. STALL AT 9448.3'PU AND RESTART MILLING TAGGING THE TOP OF THE WS AT 9441.9', TRY TO WORK PAST 07:50 - 08:10 0.33 STWHIP N DPRB WEXIT BACK TO MILLING THE WINDOW AS PER THE WELL PLAN GETTING PRESSURE SPIKES LIKE ITS TRYING TO STALL THEN DROPS OFF BUT NO CHANGE IN WOB.CHECK SHAKER FOR STATOR RUBBER,NO RUBBER. CALLED MATT ROSS TO DISCUSS Printed 7/2/2013 10:29:17AM North America-ALASKA-BP Page 7 of 8 Operation Summary Report Common Well Name:D-31" AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:DRILL(1,962,543.00) Project:Prudhoe Bay Site:PB D Pad • Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA U WI: Active datum:Ong RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task I Code NPT NPT Depth Phase Description of Operations (hr) (usft) _ 08:10 - 09:10 1.00 STWHIP N DPRB WEXIT ALMOST HAD 2 STALLS AT THIS DEPTH VVOB =2.10K CHECK BOTTOMS UP FOR RUBBER 30 BBLS BEFORE&AFTER AND NOTHING NOT MAKING ANY PROGRESS AND CONTINUE TO HAVE PRESSURE SPIKES •CALL SUPT TO DISCUSS WHAT WE ARE SEEING AND RECOMMEND POOH TO CHECK THE MOTOR&MILL 09:10 - 09:20 0.17 STWHIP N DPRB WEXIT SUPT AGREES TO POOH TO CHECK THE BHA FLOW CHECK THE WELL 09:20 - 11:15 1.92 STWHIP N DPRB WEXIT GOOD NO FLOW CHECK,POOH 11:15 - 11:25 0.17 STWHIP N DPRB WEXIT JOG BACK IN HOLE AND FLOW CHECK WELL 11:25 - 11:40 0.25 STWHIP N DPRB WEXIT GOOD NO FLOW CHECK,TAG UP AND REMOVE INJECTOR 11:40 - 12:00 0.33 STWHIP N DPRB WEXIT LD THE BHA 12:00 - 17:45 5.75 EVAL N DPRB-• WEXIT WINDOW MILL IS DESTROYED&CORED OUT ON THE FACE CALL TOWN AND DISCUSS FINDING AND PLAN FORWARD WOO FROM TOWN 17:45 - 18:10 0.42 EVAL N DPRB OTHCMP CALL FROM TO RDMO AND SWAP TO 2"FOR -NEXT WELL HOLD PJSM WITH CREW TO GO OVER THE I PLAN FORWARD 18:10 - 18:30 0.33 BOPSUR N DPRB POSTI MU NOZZLE BHA WITH DFCV'S AND RIH TO SWAP WELL OVER TO 1%KCL 18:30 - 22:15 3.75 BOPSUR N DPRB POST PT THE QTS. RIH WITH NOZZLE ASSEMBLY TO JUST ABOVE WHIPSTOCK AT 9440'. DISPLACE MUD WITH CLEAN KCL AT 2.5 BPM. 22:15 - 00:00 1.75 j BOPSUR N DPRB POST POH WITH NOZZLE BHA PUMPING KCL 12/17/2012 100:00 - 00:30 0.50 BOPSUR N DPRB POST POH TO 2500'WHILE CIRCULATING KCL. LINE UP TRUCKING,CONDUCT PJSM WITH LITTLE RED ON FREEZE PROTECTING WELL. 00:30 - 01:30 1.00 BOPSUR N DPRB POST FREEZE PROTECT WELL WITH DIESEL TO 2500'. PICK UP HOLE WHILE LAYING IN DIESEL. FLOW CHECK WELLAT SURFACE, NO FLOW. PJSM ON POPPING OFF WITH INJECTOR AND LAYING DOWN NOZZLE BHA AND BAKER TOOLS WHILE FLOW CHECKING WELL. VALVE CREW ON LOCATION. 01:30 - 02:15 0.75 BOPSUR N DPRB POST POP OFF,LD BHA. VALVE CREW GREASING VALVES. 02:15 - 02:45 0.50 WHSUR N DPRB POST SET BACK PRESSURE VALVE BY VALVE CREW. CLEAR AND CLEAN RIG FLOOR. 02:45 - 04:45 2.00 WHSUR N DPRB POST NITROGEN CREW ON LOCATION. PJSM ON 1 RIGGING UP AND BLOWING DOWN REEL. MAKE UP CORROSION INHIBITOR PILL IN PITS. FILL TREE WITH METHANOL AND PRESSURE UP TO PUMP PAST BPV. CLOSE i IN ALL VALVES. MONITOR TREE WITH SENSOR BETWEEN SSV AND SWAB. STAB ON WITH INJECTOR. BLOW BACK TO TIGER TANK WITH AIR TO CONFIRM LINE OPEN. 04:45 - 06:15 1.50 RIGD N DPRB POST PRESSURE TEST TO LOW AND HIGH ON NITROGEN LINE. ALL GOOD. PUMP CORROSION INHIBITOR AND METHANOL SPEAR THROUGH COIL. ON LINE WITH 'NITROGEN TO BLOW DOWN REEL WITH RETURNS TO TIGER TANK. Printed 7/2/2013 10:29:17AM North America-ALASKA-BP Page 8 of 8 Operation Summary Report Common Well Name:D-31* AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/11/2012 End Date:12/17/2012 X3-012VW-C:DRILL(1,962,543.00) i Project:Prudhoe Bay I Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/me:4/21/1996 12:00:00AM Rig Release:12/17/2012 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) 1 (usft) 06:15 - 06:45 0.50 RIGD N DPRB POST SHUT DOWN N2 AND BLEED OFF PRESSURE 06:45 - 07:00 0.25 RIGD N DPRB POST PJSM TO REMOVE INJECTOR,UNSTAB COIL AND SECURE AT THE REEL 07:00 - 09:00 2.00 RIGD N DPRB POST PU INJECTOR AND DRESS PIPE TO INSTALL GRAPPLE INSTALL GRAPPLE&PULL TEST 09:00 - 11:30 2.50 RIGD N DPRB POST PULL COIL BACK TO REEL AND SECURE 11:30 - 12:30 1.00 RIGD N DPRB POST PIPE SECURED REMOVE HARDLINE FROM .REEL TO PREP FOR REEL SWAP 12:30 - 13:00 0.50 RIGD N DPRB POST RD INJECTOR AND SET ON SIDE OF RIG FLOOR 13:00 - 15:30 2.50 RIGD N DPRB POST OPENBOPEANDINSPECTRAMS CTS WAITING FOR TRUCK TO SWAP REELS 15:30 - 16:45 1.25 RIGD N DPRB POST TRUCKS ON LOCATION TO MOVE SAT OFFICE OUT OF THE WAY TO SWAP REELS 16:45 - 20:00 3.25 BOPSUR N DPRB POST ND BOP STACK MOVE SATELLITE OFFICE. STAGE EQUIPMENT TO SIDE OF RIG IN _ ORDER TO SWAP REELS. 20:00 - 22:00 2.00 RIGD N DPRB POST 1PJSM ON SWAPPING OUT REELS. SWAP OUT REELS WITH NO PROBLEMS. INSPECT AND LUBE REEL DRIVE PIN MECHANISMS. 22:00 - 00:00 2.00 RIGID- N DPRB POST 'SECURE REEL TO DRIVE PINS. CONTINUE WITH STAGING FOR RIG MOVE. WARM UP MOVING SYSTEM. INSTALL TREE CAP, PRESSURE TEST. TREE SECURE,RIG RELEASE AT MIDNIGHT. Printed 7/2/2013 10:29:17AM North America-ALASKA-BP Page 1 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/18/2013 16:00 - 18:30 2.50 MOB N DPRB PRE PREP FOR REEL SWAP. HOLD PJSM ON LOWERING 2"REEL AND RAISING 2-3/8"REEL. LOWER 2"REEL ONTO TRAILER. PU& SECURE 2-3/8"COIL INTO REEL. WARM UP DRIVE SYSTEM. 18:30 - 20:00 1.50 MOB N DPRB PRE HOLD PJSM FOR JACKING RIG UP&MOVING TO SIDE OF PAD. DISCUSS HAZARDS ASSOCIATED WITH THIS TASK INCLUDING STAYING OUT OF THE LINE OF FIRE- PARTICULARLY RIG TIRES,"STOP"IS THE WORD IF SOMETHING LOOKS OUT OF THE NORM,LIMIT RADIO TRAFFIC WHILE MOVING &HAVE PLENTY OF SPOTTERS. PAD OPERATOR NOTIFIED THAT RIG IS MOVING OFF WELL. ENSURE TREE VALVES ARE CLOSED AND ANNULI PRESSURES ARE LESS THAN 50 PSI-ALL GOOD. PREP RIG FOR MOVE. 20:00 - 21:30 1.50 MOB N DPRB PRE JACK RIG UP&MOVE RIG OFF WELL TO SIDE OF PAD. SET RIG DOWN&PREP FOR WELDING REPAIR ON MONKEY BOARD. 21:30 - 21:45 0.25 MOB N DPRB PRE HOLD PJSM FOR WELDING OPERATION& DISCUSS HAZARDS INCLUDING ENSURING ALL PROPER PERMITS ARE FILLED OUT& REVIEWED,ASSIGN ROLES& RESPONSIBILITIES FOR EACH CREW MEMBER,WORKING AT HEIGHTS,ENSURE ALL TOOLS ARE TETHERED,UTILIZE GOOD COMMUNICATION THROUGHOUT THE JOB& USE FIRE BLANKETS TO COVER FLOOR& INJECTOR. PAD OPERATOR NOTIFIED OF PLANNED WELDING OPERATION. 21:45 - 23:00 1.25 MOB N DPRB PRE PERFORM WELDING OPERATION OF CRACK ON MONKEY BOARD. 23:00 - 00:00 1.00 MOB N DPRB PRE PREP NORDIC 1 FOR RIG MOVE. 5/19/2013 00:00 - 01:00 1.00 MOB N DPRB PRE CONTINUE PREPPING NORDIC 1 FOR RIG MOVE. WARM UP DRIVE SYSTEM. 01:00 - 01:30 0.50 MOB N DPRB PRE HOLD PJSM W/RIG CREW FOR RIG MOVE. DISCUSS HAZARDS ASSOCIATED WITH RIG MOVE INCLUDING STAYING OUT OF LINE OF FIRE,ESPECIALLY TIRES,VERIFY TIRE PRESSURE,DRILLER HAS COMMAND OF BOTH SETS OF WHEELS MOVING FORWARD OR BACKWARD,STOP THE JOB IF ANYTHING LOOKS OUT OF THE NORM OR IF RIG IS VEERING OFF INTENDED PATH&GOOD RADIO COMMUNICATION THROUGHOUT THE MOVE. PLAN IS TO CONVOY SATELLITE CAMP W/RIG. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 2 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) I Start Date:5/18/2013 End Date:6/4/2013 1X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:30 - 07:00 5.50 MOB N DPRB PRE JACK UP RIG&MOBILIZE NORDIC 1 FROM E-PAD TO D-PAD. ROUTE OF TRAVEL WILL BE RIGHT ON K PAD ROAD,LEFT ON TWIN TOWERS ROAD,RIGHT ON SPINE ROAD& LEFT ONTO D PAD ACCESS ROAD. MOVE RIG TO BACK ROW&ENTER FRONT WELL ROW FROM REAR ACCESS ROAD. VERIFY TREE VALVES ARE CLOSED&ANNULI PRESSURES ARE<50 PSI. STRAIGHTEN UP AND SPOT RIG FOR DAY SHIFT TO BACK RIG OVER WELL. 07:00 - 08:00 1.00 MOB N DPRB PRE COMPLETE CREW CHANGE OUT. HOLD PJSM ON BACKING RIG OVER WELL. ASSIGN PEOPLE TO POSITIONS,DISCUSS CRITICALITY OF CLEAR,CONCISE COMMUNICATION AND REVIEW PROCEDURE. SPOT RIG OVER D-31. "'ACCEPT RIG FOR OPERATIONS AT 0800-HRS"' 08:00 - 09:00 1.00 MOB N DPRB PRE BEGIN SPOTTING SUPPORT EQUIPMENT. ELECTRICIAN LOCKS OUT SCRS&CHANGES BOTH MUD PUMP RHEOSTATS AT OPS CAB CONTROL PANEL. INSTALL GUARDS ON SSV,IA&OA. 09:00 - 10:30 1.50 MOB N DPRB PRE FUNCTION ALL TREE VALVES TO BLEED OFF ANY TRAPPED PRESSURE. NO PRESSURE NOTED. PERFORM DUAL BARRIER LEAK TIGHT TEST PER WELL PROGRAM CRITERIA-GOOD TESTS. RU OA SENSOR TO MONITOR VOID BETWEEN SSV&SWAB VALVES. 0915-HRS-SEND EMAIL WITH UPDATED TIMING FOR INITIAL BOPE TEST TO AOGCC REPS. 0930-HRS-AOGCC REP JEFF JONES REPLIES WITH EMAIL REQUESTING UPDATE SHORTLY PRIOR TO TEST BEGINNING. 0945-HRS-AOGCC REP JEFF JONES FOLLOWS UP WITH A PHONE CALL. WILL UPDATE WHEN READY TO TEST SO HE WILL BE ABLE TO WITNESS. 10:30 - 11:30 1.00 MOB N DPRB PRE ND TREE CAP. BARRIERS FOR ND ARE 1) LEAK TIGHT TESTED MASTER&SSV AND 2) TESTED DOWNHOLE CEMENT PLUG 11:30 - 14:00 2.50 BOPSUR N DPRB PRE NU BOP STACK. INSTALL RIG FLOOR HOT TUB&GRATING. 14:00 - 15:30 1.50 BOPSUR N DPRB PRE BRING ON 8.6-PPG POWERPRO MUD TO PITS. HOLD PJSM ON TUBOSCOPE INSPECTING MONKEY BOARD WELDS. DISCUSS MANRIDER OPERATIONS,TETHERED TOOLS, EXCULSION ZONES AND IMPORTANCE OF CLEAR COMMUNICATION. TUBOSCOPE MPI WELDS TO UNDERSIDE OF MONKEY BOARD. NO DEFICIENCIES FOUND. OBTAIN RKB MEASUREMENTS. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 3 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:30 - 17:30 2.00 MOB N ' DPRB PRE HOLD PJSM ON RU&PULL COIL ACROSS ROOF TO INJECTOR HEAD. DISCUSS POSITIONS OF PEOPLE,STRUCK BY HAZARDS,EXCULSION ZONES,ORDER OF OPERATIONS AND IMPORTANCE OF CLEAR, CONCISE COMMUNICATION&NEEDED RADIO SILENCE WHILE PULLING COILACROSS. STRING WIRE ROPE THROUGH INJECTOR& BACK TO REEL HOUSE. MU GRAPPLE TO COIL&PULL TEST-GOOD TEST. ROLL REEL BACK&REMOVE SHIPPING BAR. PULL COIL ACROSS ROOF&STAB INTO INJECTOR. RD GRAPPLE. CUT OFF GRAPPLE&DRESS COIL. CUT E-LINE TAIL&REBOOT. SET INJECTOR BACK OVER CIRC HOLE& SECURE. 17:30 - 19:00 1.50 BOPSUR N DPRB PRE RU&FLUID PACK BOPE. PERFORM SHELL TEST OF BOP STACK- GOOD TEST HOLD H2S RIG EVAC DRILL. EXCELLENT CREW RESPONSE TO PRIMARY SAFE AREA. AAR IDENTIFIED THAT WIND DIRECTION INDICATOR WAS MISSING FROM THE ODS OF THE RIG. ALSO,THE CTS SUPERVISOR SPENT EXTRA TIME TO WALK HIS OPERATOR THROUGH THE STEPS OF SECURING THE WELL WITH COIL IN THE WELL IN THE EVENT OF A LONG-TERM RIG EVACUATION DRILL. GREAT JOB BY ALL. 1840-HRS-CALL AOGCC REP JEFF JONES TO LET HIM KNOW WE ARE READY FOR HIM TO WITNESS THE BOPE TEST. ALSO SEND EMAIL UPDATE. 19:00 - 19:45 0.75 BOPSUR N DPRB PRE !PERFORM CREW CHANGE. CLEAN&CLEAR RIG FLOOR. STATE INSPECTOR JEFF JONES ARRIVE ON LOCATION. 19:45 - 00:00 4.25 BOPSUR N DPRB PRE CONDUCT INITIAL BOPE PRESSURE AND FUNCTION-TEST AS PER NORDIC PROCEDURE,AOGCC REGS&DWOP POLICY.PERFORM BOP BODY TEST TO 250 PSI/4,500 PSI-PASS. INSTALL 2-3/8 X 3-1/2" TEST JOINT AND PERFORM PRESSURE-TEST TO 250PSI/5MINS AND 3,500PSI/5MIN ON FOLLOWING ITEMS: -ANNULAR BAG -#1 RAM-BLIND SHEARS -#2 RAM-2-3/8"COMB'S(2-3/8"TEST JOINT) PERFORM ACCUMULATOR DRAWDOWN !TEST. -STARTING ACCUMULATOR PRESSURE= 3,000 PSI -FINAL PRESSURE AFTER FUNCTIONING ALL PREVENTERS AND HCR=1,800 PSI -10 SEC TO BUILD 200 PSI,105 SEC TO FULL PRESSURE. -3 NITROGEN BACKUP BOTTLES WITH 1,800 PSI. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 4 of 38 Operation Summary Report Common Well Well Name.D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs ! Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/20/2013 00:00 - 01:45 1.75 BOPSUR N DPRB PRE CONTINUE BOP TEST: -#3 RAM-2-3/8"x 3-1/2"VBR(2-3/8"&3-1/2" TEST JOINTS) -#4 RAM-2-3/8"COMBIS(2-3/8"TEST JOINT) -FUNCTION TEST ALL RAMS FROM SLB DRILLERS CONSOLE-ALL FUNCTIONED l PROPERLY. ALL RAMS CLOSED WITHIN LESS THAN 2 SECONDS.ALSO TESTED HCR AND ALL VALVES ON KILL AND CHOKE LINE AS WELL AS KILL AND CHOKE MANIFOLDS. SUCCESSFULLY TESTED ALL VISUAL AND AUDIBLE GASALARMS.SEE ATTACHED CHARTS. STATE INSPECTOR JEFF JONES WITNESSED BOPS TESTS. 01:45 - 02:00 0.25 BOPSUR N DPRB PRE HOLD PJSM FOR PU INJECTOR&STAB ON WELL FOR IRV&PACKOFF PORTION OF BOP TEST. DISCUSS PLAN FORWARD INCLUDING CREW MEMBERS ROLES&TASKS AS WELL AS HAZARDS FOR WORKING UNDER LOADS, PUMPING AT HIGH PRESSURE,HAVE ESCAPE ROUTE,BODY PLACEMENT&PINCH POINTS. 02:00 - 03:30 1.50 BOPSUR N DPRB PRE STAB ON INJECTOR. PUMP MEOH SPEAR FOLLOWED BY FW. PRESSURE TEST REELHOUSE IRON LOW TO 250 PSI&HIGH TO 4000 PSI-PASS. CONTINUE FILLING COIL WITH FW. 03:30 - 04:00 0.50 BOPSUR N DPRB PRE CLOSE IRV&PERFORM PRESSURE TEST ON INJECTOR PACKOFFS&IRV LOW TO 250 PSI &HIGH TO 3500 PSI-PASS. BOTH TESTS WITNESSED BY STATE INSPECTOR JEFF JONES. 04:00 - 04:15 0.25 BOPSUR N DPRB PRE CLEAN&CLEAR RIG FLOOR. 04:15 - 04:40 0.42 BOPSUR N DPRB ~ PRE HOLD PJSM FOR PERFORMING SLACK MANAGEMENT. DISCUSS HAZARDS W/JOB INCLUDING WORKING UNDER LOADS,HAND &BODY PLACEMENT AROUND COIL CUTTER, SHARP EDGES ON CUT COIL&USE 3 MAN RULE ON RIG FLOOR. 04:40 - 04:55 0.25 BOPSUR N RREP PRE ATTEMPT TO FUNCTION&PRESSURE TEST MUD PUMP#1 AFTER PLANNED MAINTENANCE. RHEOSTAT ON MP#1 IS NOT WORKING. ELECTRICIAN REPAIRED RHEOSTAT. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 5 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A 682.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:55 - 05:20 0.42 BOPSUR N DPRB PRE HOLD RIG EVAC DRILL&AFTER ACTION REVIEW. SLB DRILLER,ELECTRICIAN& MOTORMAN WERE MEN DOWN. ALL OTHER PERSONNEL ON RIGSITE WERE ACCOUNTED FOR&MUSTERED IN ATIMELY FASHION. AFTER ACTION REVIEW CONSISTED OF DISCUSSION AROUND HAVING A GO BOX IN THE MUSTER AREA WHICH IS CURRENTLY THE WELDING SHOP&DOES NOT CURRENTLY CONTAIN A GO BOX. IF SCS IS OUT DOING WALK AROUNDS AND CAN'T GET THE GO BOX OUT OF THE SCS TRAILER OR SATELLITE CAMP,WE WOULD BE WITHOUT. SCS HAS BEEN TASKED WITH FINDING A SPOT IN THE WELD SHOP WHEN USING IT AS A MUSTER AREA TO STORE THE GO BOX WITH NORDIC APPROVAL.THIS WOULD ALSO APPLY TO OTHER MUSTER AREAS THAT AREN'T NORMALLY UTILIZED. 05:20 - 05:50 0.50 i BOPSUR N , DPRB PRE FUNCTION&PRESSURE TEST MUD PUMP#1. REVERSE FRESH WATER INTO COIL TO •PUMP SLACK IN.ESTIMATE 230'OF SLACK TO PUMP(1.5%) 05:50 - 06:30 0.67 BOPSUR N DPRB PRE RU COIL CUTTER&CUT 112'OF COIL. IDENTIFY ISSUES WITH DEPTH COUNTER. TIGHTEN JUPITER FITTING AND OPERATIONAL AGAIN. 06:30 - 07:00 0.50 BOPSUR N DPRB PRE COMPLETE CREW CHANGE. PERFORM WALKAROUNDS&PRE TOUR CHECKS. 07:00 - 07:30 0.50 BOPSUR N DPRB • PRE HOLD PJSM ON CONTINUING TO CUT COIL. i DISCUSS POSITIONS OF PEOPLE,ORDER OF OPERATIONS AND PROPER HANDLING OF CUT COIL. CUT AN ADDITIONAL 169"OF COIL FOR A TOTAL OF 281'CUT. RD COIL CUTTER&STAB ON WELL. PUMP SLACK FORWARD BY SURGING PUMP. HEAR E-LINE MOVING. UNSTAB INJECTOR AND WE HAVE E-LINE. 07:30 - 08:15 0.75 BOPSUR N DPRB PRE CUT OFF E-LINE TAIL&TEST E-LINE. REBOOT E-LINE. DRESS COIL FOR CTC. MU SLB CTC. PULL TEST TO 37K-LBS-GOOD TEST. PRESSURE TEST TO TO 3700-PSI- GOOD TEST. 08:15 - 09:00 0.75 BOPSUR N DPRB PRE BHI MU UQC. MEG TEST E-LINE GOOD TESTS. 09:00 - 09:30 0.50 BOPSUR N DPRB PRE STAB ON WELL&TEST BHI DBPV&CT LUBRICATOR/QTS CONNECTIONS TO 250-PSI/3500-PSI. EACH TEST HELD FOR 5-MINUTES. GOOD TESTS._ 09:30 - 10:30 1.00 BOPSUR N DPRB PRE DISPLACE COIL FROM FRESH WATER USED FOR TESTING TO 120-DEG 8.4-PPG 1%KCL. PUMP AT 2.5-BPM/1000-PSI. PUMP ANOTHER 30-BBLS TO FILL PIT#4. UNSTAB INJECTOR AND SET BACK OVER CIRC HOLE. 10:30 - 11:15 0.75 BOPSUR N DPRB PRE MU NIGHT CAP&PRESSURE TEST TO 250-PSI/3500-PSI FOR 5-MINUTES PER TEST. j GOOD TEST. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 6 of 38 Operation Summary Report Common Well Name D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11:15 - 12:45 1.50 MOB N SFAL PRE CTDS COMPUTER WILL NOT BOOT UP. CTS ETS TROUBLESHOOT&GET SYSTEM OPERATIONAL. 12:45 - 13:45 1.00 BOPSUR N DPRB PRE OPEN UP WELL TO CLOSED CHOKE. 0-PSI. ATTEMPT TO FILL WELL WITH MEOH-WELL IS FULL. MONITOR WELL- INITIALLY SOME AIR BREAKING OUT BUT GOOD NO FLOW TEST. 13:45 - 14:30 0.75 STWHIP N DPRB WEXIT HOLD PJSM ON PU PILOT MILLING BHA. DISCUSS POSITIONS OF PEOPLE AND HIGHLIGHT WELL CONTROL CONSIDERATIONS&MITIGATIONS. MU PILOT MILLING BHA. BHA CONSISTS OF 3.80"GO/3.79"NO GO D331 PARABOLIC MILL, .6-DEG BEND 2-7/8"XTREME MOTOR,XO, 2-JTS OF 2-3/8"PH6,XO,XO HOT,DGS,DPS, EDC,P&C,WEAR SUB,LQC,UQC,XO&CTC. OAL=130.78'. 14:30 - 15:00 0.50 STWHIP N DPRB WEXIT MU COIL TO BHA&STAB ON WELL. TEST QTS TO 250-PSI/3500-PSI. HOLD EACH TEST FOR 5-MINUTES. GOOD TESTS. OPEN EDC&ESTABLISH CIRCULATION AT .6-BPM/60-PSI,TAKING ALL RETURNS TO TIGER TANK. AT START,IA/OA/PVT=63-PSI/0-PSI/ 323-BBLS. 15:00 - 17:00 2.00 STWHIP N DPRB WEXIT RIH WITH PILOT HOLE MILLING BHA. STOP AT 329'AND CHECK INNER REEL HARDLINE. TIGHTEN CHAINS SECURING IT IN PLACE. CONTINUE TO RIH,CIRCULATING AT.42-BPM/ 25-PSI. AT START,IA/OA/PVT=63-PSI/0-PSI/ 323-BBLS. AT END,IA/OA/PVT=130-PSI/250-PSI/ 323-BBLS(NO CHANGE DUE TO TAKING FLUIDS OFF TRUCKS&RETURNS TO TIGER TANK). 17:00 - 17:30 0.50 STWHIP N DPRB WEXIT LOG TIE IN TO TSGR PER GEO. APPLY PLUS 2'CORRECTION. CIRCULATE THROUGH OPEN EDC AT.4-BPM/ 100-PSI. CONTINUE TO PUMP KCL,TAKING RETURNS TO TIGER TANK. 17:30 - 19:45 2.25 STWHIP N DPRB ' WEXIT CONTINUE TO RIH,CIRCULATING THROUGH OPEN EDC. TAG AT 9246'. PU SLOWLY,INCREASING PUMP RATE TO 2.2-BPM/720-PSI. CONTINUE PUMPING KCL UNTIL TRUCK IS EMPTY. DISPLACE WELL TO 8.6-PPG POWERPRO MUD. IA/OA=150-PSI/350-PSI Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 7 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UW: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:45 21:15 1.50 STWHIP N DPRB WEXIT START KEEPING MUD IN HOUSE. CLOSE EDC &TAG UP AT 9246'.PU&TAKE FREE SPIN= 2200 PSI.START MILLING AHEAD AND SEE NO MOTORWORK(X NIPPLE AT 9247'). WORK 'THROUGH EASILY AND CONTINUE WASHING AHEAD. MILL AHEAD TO 9323'AND SEE MOTOR STALL. PU&SLOWLY EASE INTO 9323'AND SEE-100 PSI MOTORWORK AND 0.5K WOB. WORK THROUGH WITH NO PROBLEMS&LOSE MOTORWORK&WOB. WASH AHEAD. RETURNS SHOWING CEMENT W/A PH OF 11 AND STAINING MUD TO A SLIGHT GRAY COLOR. OBSERVE A SIGNIFICANT AMOUNT OF SMALL CEMENT PARTICLES COMING ACROSS SHAKERS. 21:15 - 23:30 2.25 STWHIP N DPRB WEXIT CONTINUE MILLING/WASHING AHEAD AND FIND HARD TOC AT 9,330'. OBSERVE CONSTANT MOTORWORK&WOB FROM THIS POINT FORWARD. MOTOR WORK=200-300 PSI/WOB=0.50- 1.6KLBS. RETURNS ARE COMING BACK W/PH OF 11 TO 12. START SLOWLY ADDING CITRIC ACID TO NEUTRALIZE MUD. MILL AHEAD W/200-300 PSI MOTORWORK& 0.50-1.5KLBS WOB FROM 9,330 TO 9448.3'. SLOWLY APPROACH 9440'WITH SAME MILLING PARAMETERS AS ABOVE UNTIL 9448.3'&MOTOR STALLS-SAME DEPTH WE MADE IT TO ON THE FIRST ATTEMPT OF THIS WELL. 23:30 - 00:00 0.50 STWHIP P WEXIT BACKREAM FROM 9448.3'TO 9300'WITH NO CHANGE IN PUW&NO MOTORWORK OBSERVED. PILOT HOLE APPEARS TO BE CLEAN. 5/21/2013 00:00 - 00:45 0.75 STWHIP P WEXIT CLEAN UP CONTINGENCY WHIPSTOCK SETTING AREA FROM 9390'-9412'& DEPLOYMENT SLEEVE SETTING AREA FROM 9310'-9330'UP&DOWN CHANGING TOOLFACE ORIENTATION BY 90 DEGREES EACH PASS-4 UP/DOWN PASSES ACROSS BOTH SECTIONS. DO NOT OBSERVE ANY MOTOR WORK&PUW/SOWARE CLEAN ON ALL PASSES. 00:45 03:00 2.25 STWHIP P WEXIT FLOWCHECK-NO FLOW. POOH/PILOT HOLE BHA. HOLD PJSM FOR LD PILOT BHA& MU WINDOW MILLING BHA. DISCUSS HAZARDS ASSOCIATED WITH THE JOB INCLUDING WELL CONTROL CONTINGENCIES,PERFORM A DRILL/ SAFETY JOINT,HAND PLACEMENT WHEN WORKING WITH LITTLE JERKS&WORKING UNDER SUSPENDED LOADS. FLOWCHECK AT 200'-NO FLOW.BUMP UP INTO LUBRICATOR. UNSTAB INJECTOR&LD PILOT HOLE BHA. GAUGE PARABOLIC MILL AT 3.79 GO/3.78 NO GO. 03:00 - 03:30 0.50 STWHIP P WEXIT MU WINDOW MILLING BHA&STAB ON INJECTOR. PRESSURE TEST QTS LOW TO 250 PSI&HIGH TO 3500 PSI-GOOD. 03:30 - 06:00 2.50 STWHIP P WEXIT RIH/BHA#2(WINDOW MILL). PERFORM TIE IN LOG,APPLY+2'CORRECTION. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 8 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:00 - 12:30 6.50 STWHIP P WEXIT TAG PBTD AT 9448.3'&PU TO OBTAIN FREE SPIN=2.6-BPM/2200 PSI. RIH SLOWLY&BEGIN MILLING AHEAD IN WINDOW FROM 9449.2'. AT 9449.7'-MILLING SLOWLY AHEAD WITH 2- 3K-LBS WOB&200-300-PSI MOTOR WORK. AT 9950.2'-STILL SLOW GOING,WOB BETWEEN 2.5-3.5K-LBS. MOTOR WORK AT 200-300-PSI. SOME METAL SEEN IN CUTTINGS. AT 9450.7'-STILL SLOW GOING, INCREASING WOB TO 2-4.25K-LBS AND MOTOR WORK FROM 200-450-PSI. PERIODICALLY GETTING WEIGHT BACK OR STACKING WEIGHT WITHOUT MOVING COIL. INCREASE RATE TO 2.8-BPM&MILLS OFF SLIGHTLY BETTER. AT 9450.8',PUMP 10-BBLS HI VIS SWEEP BLEED OA PRESSURE FROM 920-PSI TO 800-PSI-MAINLY GAS. 12:30 - 15:45 3.25 STWHIP P WEXIT 'CONTINUE MILLING AHEAD AS WOB& MOTOR WORK ALLOW. 9451.2'-4 KLBS WOB/400 PSI MOTOR WORK BLEED OA PRESSURE FROM 930 PSI TO 475 PSI-FLUID/GAS MIX,-0.5 BBL FLUID RETURNED. MM IN 2.80/MM OUT 2.83/MW IN 8.62/MM OUT 8.54/RETURNS PH 11-12 9452.0-4.3 KLBS WOB/400 PSI MOTOR WORK-TIME MILLING AT-1'/HR. 9452.5-3.1 KLBS WOB/450 PSI MOTOR WORK-DRILLING OFF NICE AT 1'/HR.. 6452.8-2.7 KLBS WOB/350 PSI MOTOR WORK. I 6453.2-2.2 KLBS WOB/380 PSI MOTOR WORK. 9453.5-2.7 KLBS WOB/500 PSI MOTOR WORK-CONTINUE TIME MILLING AT-1'/HR. 9553.8-2.0 KLBS WOB/500 PSI MOTOR WORK. 9454.0-0.75 KLBS WOB/350 PSI MOTOR WORK. THIS APPEARS TO BE BOW. 15:45 - 19:00 3.25 STWHIP P WEXIT CONTINUE MILLING AHEAD IN RATHOLE. DRESS WINDOW AS STRING REAMER GOES BY.MILL RATHOLE TO 9,465'MD. 19:00 - 20:00 1.00 STWHIP P WEXIT MAKE 3 BACKREAM PASSES.PULL AT ONE FOOT PER MINUTE WITH 35K UP WEIGHT AND 16K DOWN WEIGHT.PUMP AT 2.6 BPM IN AND OUT WITH 2350 PSI.MUD WEIGHT IN AND OUT 8.6 PPG.OBSERVE 100-200 PSI MOTOR WORK IN A FEW SPOTS ON EACH PASS.ON THIRD DOWN PASS AT 9,450'MD TAKE 3-5K DOWN WEIGHT.PULL UP TO 47K WITH NO MOVEMENT. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 9 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:00 - 22:15 2.25 STWHIP N STUC 9,450.00 WEXIT I WORK PIPE WITH TOP OF WINDOW AT 9,446' MD AND BOTTOM OF WINDOW AT 9,454'MD AND RATHOLE TO 9,465'MD AND BIT AT 9,450' MD.MOVE PIPE TO 60°RIGHT STILL NO UP AND DOWN.RELAX TO NEUTRAL WEIGHT. PUMP AT 0.5 BPM WITH 2200 PSI.MOVE TO 110°RIGHT AND OBSERVE INCREASE IN WEIGHT OF 600 TO 1000 FT/LBS.MOVE TO 120°RIGHT AND PRESSURE INCREASES AGAIN TO 2600 PSI.UNABLE TO MOVE PIPE UP OR DOWN.MOVE BACK TO 110°RIGHT AND PRESSURE DROPS OFF AGAIN.STILL NO PIPE MOVEMENT.PULL UP TO 62KAND 13K DOWN SEVERAL TIMES WITH NO MOVEMENT.ATTEMPT TO PRESSURE UP TO TORQUE COIL AND DROP PRESSURE,STILL NO PIPE MOVEMENT.CONTINUE TO WORK PIPE UP AND DOWN AND ROTATE LEFT AND RIGHT WITH NO LUCK MOVING PIPE. PRESSURE UP ON WELLBORE TO 1000 PSI I WITH COIL IN TENSION.DUMP PRESSURE 'AND ATTEMPT TO PULL FREE-NO GO.PUT COIL IN COMPRESSION AND PRESSURE UP •TO 1000 PSI.DUMP PRESSURE AND PULL UP 62K AND PULL FREE.PULL UP ABOVE TOP OF CEMENT AT 9,330'MD. 22:15 - 22•45 0.50 STWHIP N STUC 9,450.00 WEXIT PULL SLOWLY UP HOLE WHILE DISCUSSING PLAN FORWARD. 22:45 - 23:00 0.25 STWHIP N STUC 9,450.00 WEXIT RUN IN HOLE TO TOP OF WINDOW AT 9,446' MD.PUMP AT 2.8 BPM WITH 2454 PSI.OUT MM 3.1 BPM.DOWN WEIGHT 18K.DECISION MADE TO RUN IN AND TRY TO CLEAN HOLE AND VERIFY A GOOD WINDOW. 23:00 - 23:30 0.50 STWHIP P WEXIT REAM AND BACKREAM ONE PASS THROUGH WINDOW.PUMP AT 2.8 BPM WITH 2380 PSI. DOWN WEIGHT 17K,UP WEIGHT 37K.WORK SLOWLY DOWN THROUGH WINDOW AND TAG UP ON BOTTOM.SHUT DOWN AND DRY DRIFT WINDOW WITH NO PROBLEMS. 23:30 - 00:00 0.50 STWHIP P WEXIT CIRCULATE HI-VIS SWEEP AND WORK MILL • BACK TO BOTTOM AS SWEEP GOES AROUND THE CORNER.PULL UP HOLE CHASING SWEEP OUT.SHUT DOWN TO OPEN EDC. MUD WEIGHT IN AND OUT 8.6 PPG.POOH.y 5/22/2013 00:00 - 02:00 2.00 STWHIP P WEXIT POOH WITH MILLING ASSEMBLY TO BHA AT 200'MD.FLOW CHECK WELL-STATIC. 02:00 - 02:30 0.50 STWHIP P WEXIT POOH WITH MILLING BHAAND LAY DOWN. INSPECT WINDOW MILL-3.77"NO-GO AND STRING MILL-3.79"NO-GO.TWO GOUGES BETWEEN WINDOW MILL AND STRING MILL. • 02:30 - 03:00 0.50 STWHIP P WEXIT MAKE UP BUILD DRILLING BHA TO 80'AND RIH. 03:00 03:30 0.50 STWHIP P WEXIT STAB AND MAKE UP INJECTOR.MAKE UP QUICK TEST SUB AND TEST TO 250 PSI LOW, 3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS.CHECK TORQUE ON TREE BOLT,ALL GOOD. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 10 0138 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 05:00 1.50 STWHIP P WEXIT RIH WITH BUILD SECTION BHA AT 94 FPM. PUMP AT 0.8 BPM WITH 732 PSI OUT MM 1.39 BPM.MUD WEIGHT IN AND OUT 8.6 PPG. VOLUME 265 BBLS.IA-390 PSI,OA-320 PSI. I CONTINUE RUNNING IN AT 8,700'MD AT 65 FPM WITH 18K DOWN WEIGHT.PUMP AT 0.8 BPM WITH 970 PSI,OUT MM 1.15 BPM. VOLUME 307 BBLS. 05:00 07:00 2.00 STWHIP P WEXIT LOG LONG TIE-IN FROM 8,840'TO 9,040'AT 1.5 FPM WITH 18K DOWN WEIGHT.PUMP AT 0.8 BPM WITH 950 PSI.MUD WEIGHT IN AND OUT 8.6 PPG. 07:00 - 07:20 0.33 STWHIP P WEXIT LONG LOGGING PASS COMPLETED, CORRECT DEPTH+5'AND RIH TO THE WINDOW AT THE WINDOW CLOSE THE EDC AND RIH TO TD 07:20 - 07:30 0.17 STWHIP P WEXIT TAG TD AT 9466',PU TO UP WEIGHT AND OBTAIN SPR'S 07:30 - 10:00 2.50 STWHIP N DFAL 9,490.00 WEXIT RIH TO START DRILLING,STALL AT 9462',PU AND HAD-5K OVER PULL.RIH WITH NO PUMP AND ITS CLEAN PU AND START PUMP 10:00 - 12:00 2.00 DRILL N DFAL 9,490.00 PROD1 SLOW ROP WITH A FEW STALLS FREE SPIN=2450 PSI AT 2.9 BPM RATE IN=2.90 BPM RATE OUT=1.78 BPM ROP=10 FPH WOB=1.5 K CIRC PSI= 3208 PSI MW IN=8.67 PPG MW OUT=8.58 PPG ECD =10.27 PPG IAP=608 PSI OAP=522 PSI PVT=311 BBLS 12:00 - 13:50 1.83 DRILL N DFAL 9,490.00 PROD1 SEVERAL STALLS AND NOT MAKING ANY PROGRESS,ONLY 2'IN THE LAST 2 HRS TRIED SLOW ROP,0.1'INCHING OUR WAY DOWN AND NORMAL RIH SPEEDS AND WE CANNOT GET IT TO DRILL,IT JUST WANTS TO STALL.WHEN THE BIT GETS CLOSE TO BOTTOM THE WOB STARTS SHOWING A LITTLE WEIGHT STACKING THEN GOES INTO A STALL,NOT SURE IF THE RES TOOL IS HOLDING US UP SO WE WILL CHECK THE WHOLE BHA FOR SCARING AND CHECK THE BIT FOR DAMAGE FLOW CHECK THE WELL GOOD NO FLOW,POOH 13:50 - 14:35 0.75 DRILL N DPRB 9,490.00 PROD1 HOLD PJSM TO PULL AND CHECK THE BHA OUT MM IS PLUGGING OFF,BYPASS AND BLOW DOWN. GOT A LOT OF SHAVED METAL AND CHUNKS OF CMT FROM THE BLOW DOWN 14:35 14:45 0.17 DRILL N DPRB 9,490.00 PROD1 FLOW CHECK WELL ,14:45 - 17:00 2.25 DRILL N DPRB 9,490.00 PROD1 GOOD NO FLOW,TAG UP,REMOVE THE INJECTOR AND PULL THE BHA BIT IS BEAT UP AND LOOKS LIKE WE HAVE SOME JUNK IN THE HOLE CALL TOWN TO DISCUSS OPTIONS 17:00 - 17:30 0.50 DRILL N DPRB 9,490.00 PROD1 TOWN WOULD LIKE TO RERUN THE WINDOW BHA TO CLEAN UP THE WINDOW AREAAND GRIND UP THE JUNK THAT MIGHT BE ON BOTTOM AND ALSO CLEAN UP THE CMT SHEATH IN THE TUBING Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 11 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:30 - 21:00 3.50 DRILL N DPRB 9,490.00 PROD1 WAIT FOR WINDOW MILL FROM HUGHES AND ORDERS FROM TOWN.REPLACE NUTS ON GOOSENECK ROLLERS.PRESSURE TEST PUMP AND SEAT VALVES.RUN 200'OF COIL IN HOLE AND INSPECT FOR DAMAGE.NO DAMAGE NOTED. 21:00 - 21:30 0.50 DRILL N DPRB 9,490.00 PROD1 MAKE UP MILLING ASSEMBLY,BHA#4 AND RUN IN HOLE TO 67'. 21:30 - 22:00 0.50 DRILL N DPRB 9,490.00 PROD1 STAB INJECTOR AND MAKE UP QUICK TEST 1 SUB.TEST SUB TO 250 PSI LOW,4000 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 22.00 - 23:30 1.50 DRILL N DPRB 9,490.00 PROD1 RUN IN HOLE AT 85 FPM WITH 19K DOWN WEIGHT,UP WEIGHT 35K.PUMP AT 0.6 BPM WITH 920 PSI,OUT MICRO MOTION 1.0 BPM. VOLUME 308 BBLS WITH A MUD WEIGHT IN AND OUT OF 8.6 PPG.IA-340 PSI,OA-0 PSI. 23:30 - 00:00 0.50 DRILL N DPRB 9,490.00 PROD1 LOG TIE-IN FROM 8,840'TO 8,865'AT 2 FPM. CORRECTION OF PLUS 7.5 FEET.RUN A CCL LOG FROM 9,050'MD TO 9,460'AT 16 FPM WITH 19K DOWN WEIGHT.PUMP AT 1.5 BPM WITH 1360 PSI. 5/23/2013 00:00 - 00:15 0.25 DRILL N DPRB 9,490.00 PROD1 LOG TIE-IN FROM 8,840'TO 8,865'AT 2 FPM. CORRECTION OF PLUS 7.5 FEET.RUN A CCL LOG FROM 9,050'MD TO 9,460'AT 16 FPM WITH 19K DOWN WEIGHT.PUMP AT 1.5 BPM WITH 1360 PSI. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 12 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 00:15 - 05:00 4.75 DRILL N DPRB 9,490.00 PROD1 MAKE REAMING PASSES IN THE 4.5"TUBING FROM 9,300'MD TO 9,424'MD AT THE TUBING TAIL.PUMP AT 2.7 BPM WITH 2325 PSI.UP WEIGHT 28-35K,DOWN WEIGHT 16-19K. I VOLUME 310 BBLS WITH 8.6 PPG MUD IN AND OUT.IA-625 PSI,OA-420 PSI. MAKE REAMING PASSES AT 45°INCREMENTS FROM 0°TO 360°AT 5 FPM. 9,360'BOBBLE AT 45°RIGHT OF HIGH SIDE GOING UP.GO BACK DOWN-CLEAN AND CLEAN GOING BACK UP. -9,321'BOBBLE AT 45°RIGHT OF HIGH SIDE GOING UP WITH A PRESSURE INCREASE OF 500 PSI.GO BACK DOWN WITH NO INDICATIONS BUT SEE AGAIN COMING BACK UP.WIPE 2 MORE TIMES WITH SLIGHT BOBBLE AND DECREASE IN PRESSURE SPIKE FROM 500 PSI SPIKE TO 300 PSI SPIKE.CONTINUE REAMING TUBING.THIS AREA HAS NO EQUIPMENT OR JEWELRY BUT IS CLOSE TO WHAT APPEARS TO BE A 4.5" TUBING PUP COLLAR FROM THE CCL.(9,322') -SEEING INCREASE IN CUTTINGS OFF OF SHAKER.VERY FINE(HAIR TYPE)METAL WITH MOSTLY CEMENT. -9,400'AND 9,397'PRESSURE SPIKES OF 700 PSI AT 225°RIGHT OF HIGH SIDE GOING UP THAT CLEANED UP AFTER ONE WIPE. -9,393'BOBBLE AT 225°RIGHT OF HIGH SIDE WITH AN 800 PSI SPIKE IN UP STROKE.WIPE DOWN AND UP TWICE WITH DECREASING PRESSURE SPIKES.CLEANED UP ON LAST WIPE WITH 200 PSI SPIKE. -9,358'BOBBLE AT 225°RIGHT OF HIGH SIDE GOING UP WITH A 600 PSI SPIKE.WIPE ONCE. -CUTTINGS COMING OFF SHAKER HAVE DECREASED.PUMP 15 BBL SWEEP. ,FINISH REAMING RUNS.RUN IN HOLE TO WINDOWAT 9,446'MD. 05:00 - 06:30 1.50 DRILL N DPRB 9,490.00 PROD1 DRESS WINDOWATAS MILLED TOOL FACE AT 0.4-0.8 FPM.PUMP AT 2.7 BPM WITH 2355 PSI.MAKE THREE PASSES.DOWN WEIGHT 18K,UP WEIGHT 35K.REAM UNTIL NO MOTOR WORK IS OBSERVED. 06:30 - 07:30 1.00 DRILL N DPRB 9,490.00 PROD1 3 PASSES MADE AT 20°RIGHT,ORIENT TO 20°LEFT FOR 3 PASSES 07:30 - 07:35 0.08 DRILL N DPRB 9,490.00 PROD1 MADE 3 PASSES AT 20°LEFT WITH NO MOTOR WORK,ORIENT TO AS DRILLED TOOLFACE AND DRY DRIFT WINDOW AS PER THE OCN 07:35 - 07:40 0.08 DRILL N DPRB 9,490.00 PROD1 DRY DRIFTS ARE CLEAN IN BOTH DIRECTIONS,RIH TO TD AT MIN RATE TO TAG 07:40 - 08:45 1.08 DRILL N DPRB 9,490.00 PROD1 TAG BOTTOM,PU AND BRING PUMP TO FULL RATE TO MILL DEBRIS HAD 2 STALLS AT 9489 AND 9490 Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 13 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 1 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay ' Site:PB D Pad Rig Name/No.:NORDIC 1 Spud DateTme:4/21/1996 12:00:OOAM Rig Release:6/6/2013 Rig Contractor.NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A l82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 08:45 - 10:00 1.25 DRILL N DPRB 9,490.00 PROD1 LOOKS LIKE WE ARE JUST ON FORMATION NOW,START 30 BBL HI-VIS PILL CHASE HI VIS PILL UP TO 9000'THEN RIH TO WINDOW THE HI-VIS PILL DID NOT BRING UP ANYTHING OPEN THE EDC AND PUMP A BOTTOMS UP AT MAX RATE 10:00 - 10:15 0.25 DRILL N DPRB 9,490.00 PROD1 OPEN EDC PUMPING AT 4.7 BPM WHILE MOVING UP HOLE SLOW POWER CONSUMPTION IS AT 78% 10:15 - 10:20 0.08 DRILL N DPRB 9,490.00 PROD1 HIGH RATE BOTTOMS UP DID NOT BRING UP ANYTHING,OUR WELL SHOULD BE CLEAN 10:20 - 10:30 0.17 DRILL N DPRB 9,490.00 , PROD1 30 BELS PAST BOTTOMS UP IS CLEAN,SHUT DOWN PUMP AND FLOW CHECK WELL TO 'POOH 10:30 - 12:05 1.58 DRILL N . DPRB 9,490.00 I PROD1 }GOOD NO FLOW CHECK,BRING PUMP TO FULL RATE AND START POOH PVT=311 BBLS 2500'HOLD PJSM TO LD THE WINDOW BHA AND MU THE BUILD BHA 12:05 12:15 0.17 DRILL N DPRB 9,490.00 PROD1 200'FROM SURFACE JOG IN HOLE AND OUT MM HAS SOMETHING PACKED OFF IN IT. BYPASS AND BLOW DOWN 12:15 - 12:20 OA8 DRILL N DPRB 9,490.00 PROD1 FLOW CHECK WELL 12:20 - 12:40 0.33 DRILL N DPRB 9,490.00 PROD1 GOOD NO FLOW CHECK,TAG UP AND LD THE WINDOW BHA THEN MU THE BUILD BHA 12:40 - 12:50 0.17 DRILL N DPRB . 9,490.00 PROD1 BHA OOH,BOTH MILLS GAUGED 3.76 GO 3.75 NO GO 12:50 - 13:30 0.67 DRILL N DPRB 9,490.00 PROD1 GOT A LOT OF METAL BACK THE LAST 2 TRIPS IN THE HOLE,JET STACK 13:30 - 14:00 0.50 DRILL N DPRB 9,490.00 PROD1 MU THE BUILD BHA 14:00 - 15:40 1.67 DRILL N DPRB 9,490.00 PROD1 RIH 15:40 - 15:50 0.17 DRILL N DPRB 9,490.00 PROD1 LOG TIE IN 15:50 - 16:45 0.92 DRILL N DPRB 9,490.00 PROD1 CORRECT DEPTH+7.5'THEN RIH TO LOG THE RA RA IS AT 9450'RIH TO BOTTOM 16:45 - 16:50 0.08 DRILL N DPRB 9,490.00 PROD1 TAG BOTTOM,PU AND OBTAIN SPR'S 16:50 - 19:30 2.67 DRILL N DPRB 9,490.00 PROD1 START DRILLING 3 STALLS TRYING TO GET STARTED.UNABLE TO MAKE HEAD WAY.TRY DIFFERENT PUMP RATES,WOBAND ROP'S.TURNING LEFT AT 270'. PUMP AT 3 BPM WITH 2655 PSI,2500 PSI FREE SPIN.DOWN WEIGHT 20K WITH 0.4 WOB.SOME VIBRATION AT MOTOR. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 14 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:30 - 22:30 3.00 DRILL N DPRB 9,490.00 PROD1 MAKE ATTEMPTS TO TIME DRILL AT 1 FPH PUMPING AT 3 BPM WITH 2585 PSI.WOB 0.4K. MOTOR STALLS EACH TIME.ON THIRD ATTEMPT OBSERVE MOTOR START TO STALL •BUT DRILLED OFF.CONTINUED TO TIME DRILL TO 9,489'THEN STALL OUT.PULL UP AND RUN INTO IT.ABLE TO DRILL OFF AT 3 BPM WITH 2800 PSI AND 0.8K WOB.DRILL AHEAD AT 7 FPH WITH 2300 PSI FREE SPIN. DRILL TO 9,492'MD AND STALL OUT.MAKE SEVERAL MORE ATTEMPTS WITH DIFFERENT PARAMETERS TO MAKE HEADWAY BUT UNABLE TO.DECISION MADE TO PULL THE BHA. 22:30 - 23:00 0.50 DRILL N DPRB 9,490.00 • PROD1 CIRCULATE BOTTOM OF HOLE CLEAN.SHUT DOWN AND FLOW CHECK-STATIC.MUD WEIGHT IN AND OUT 8.6 PPG. 23:00 - 00:00 1.00 DRILL N DPRB" 9,490.00 PROD1 PULL OUT OF HOLE AT 75 FPM WITH 34K UP WEIGHT.PUMP AT 3.1 BPM WITH 2290 PSI, OUT MICRO MOTION 2.75 BPM.MUD WEIGHT IN AND OUT 8.6 PPG.VOLUME 310 BBLS.IA- 775 PSI,OH-760 PSI. 5/24/2013 00:00 - 00:45 0.75 DRILL N DPRB 9,490.00 PROD1 PULL OUT OF HOLE AT 75 FPM WITH 34K UP WEIGHT TO BHA AT 68'.PUMP AT 3.1 BPM •WITH 2290 PSI,OUT MICRO MOTION 2.75 BPM.MUD WEIGHT IN AND OUT 8.6 PPG. VOLUME 310 BBLS.IA-775 PSI,OH-760 PSI. 00:45 - 01:00 0.25 DRILL_. N DPRB 9,490.00 PROD1 FLOW CHECK WELLAT BHA-STATIC. 01:00 - 01:30 0.50 DRILL N__ DPRB 9,490.00 PROD1 LAY DOWN BUILD SECTION ASSEMBLY,BHA# 5.BIT IS GRADED 4-7-BT-A-X-I-XT-PR.NO ABNORMAL WEAR ON BHA COMPONENTS. 01:30 - 02:30 1.00 DRILL N DPRB 9,490.00 PROD1 PERFORM COIL MANAGEMENT AND CUT 100' EACH OF COIL AND E-LINE.HEAD UP AND PULL TEST TO 40K-PASS.PRESSURE TEST COIL CONNECTOR TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 02:30 - 03:00 0.50 DRILL N DPRB 9,490.00 PROD1 MAKE UP BAKER COIL TOOLS. 03:00 - 04:00 1.00 DRILL P 9,490.00 PROD1 STAB INJECTOR AND MAKE UP QUICK TEST SUB.TEST LUBRICATOR AND DUAL FLAPPER SAFETY VALVES TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- I PASS. 04:00 - 04:45 0.75 DRILL N DPRB 9,490.00 PROD1 PICK UP AND RIH WITH BUILD SECTION ASSEMBLY,BHA#6 WITH NEW X-TREME MOTOR AND C3 BIT TO 66'.STAB INJECTOR AND MAKE UP QUICK TEST SUB. 04:45 - 05:15 0.50 DRILL N DPRB 9,490.00 PROD1 TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- _ PASS. 05:15 - 07:05 1.83 DRILL N DPRB 9,490.00 PROD1 RUN IN HOLE WITH BUILD SECTION ASSEMBLY,BHA#6. 07:05 - 07:20 0.25 DRILL N DPRB 9,490.00 PROD1 LOG TIE IN TO RA 07:20 - 07:25 0.08 DRILL N DPRB 9,490.00 PROD1 CORRECT DEPTH+4',RIH AND TAG BOTTOM Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 15 of 38 Operation Summary Report -------------------------- --- Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Ong RKB 0-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code 1 NPT NPT Depth Phase Description of Operations (hr) (usft) 07:25 - 08:15 0.83 DRILL N DPRB 9,490.00 PROD1 TAG TD ON DEPTH,PU TO UP WT AND START MOTOR 'HIGH VIBRATION 9491.34'SPIKE IN CIRC PRESSURE BUT DID NOT STALL 19491.54'STALL 08:15 - 10:10 1.92 I DRILL N DPRB 9,490.00 PROD1 j FLOW CHECK WELL,GOOD NO FLOW,POOH 10:10 - 10:15 0.08 DRILL N DPRB 9,490.00 PROD1 FLOW CHECK WELL 10:15 - 10:35 0.33 DRILL N DPRB 9,490.00 PROD1 GOOD NO FLOW,LD BHA BIT GRADE IS 3-7 10:35 - 11:00 0.42 DRILL N DPRB 9,490.00 PROD1 ADJUST MOTOR TO 2.75°AKO WITH CC STR 335 BIT 11:00 - 11:20 0.33 DRILL N DPRB 9,490.00 PROD1 MU THE BUILD BHA PU THE INJECTOR AND STAB ONTO THE BHA 11:20 - 11:35 0.25 DRILL N DPRB 9,490.00 PROD1 I PT THE QTS 11:35 - 13:20 1.75 DRILL N DPRB- 9,490.00 PROD1 RIH WITH BUILD BHA 13:20 - 13:35 0.25 DRILL N DPRB 9,490.00 PROD1 LOG TIE IN TO'RA 13:35 - 14:00 0.42 DRILL N DPRB 9,490.00 PROD1 NO CORRECTION,DISCUSS PLAN FORWARD WITH DRLG SUPT 14:00 - 17:00 3.00 DRILL N DPRB 9,490.00 PROD1 TAG TD,PU TO UP WT AND WORK DOWN TO FIRST MOTOR WORK THEN ESTABLISH A PATTERN IN THE FORMATION 9489.42'STALL.CONTINUE TO STALL AT SAME DEPTH 17:00 - 17:30 0.50 DRILL N , DPRB 9,490.00 PROD1 ALL ATTEMPTS TO GET SIDETRACKED AT 9489.3'AT 45°LOHS HAVE FAILED.ORIENT TO 0°AND TRY A HS TOOLFACE 17:30 - 18:30 1.00 DRILL N DPRB 9,490.00 PROD1 'MADE 1'AT THIS TOOLFACE 18:30 - 18:50 0.33 DRILL N DPRB 9,490.00 PROD1 START APPLYING MORE WOB TO SEE IF WE CAN MAKE HOLE WE ARE DRILLING AT 100 FPH 18:50 - 19:30 0.67 DRILL N DPRB 9,490.00 PROD1 DRILLED TO 9535'BUT WE ARE TRACKING THE CASING FROM THE OLD WELL. DECISION MADE TO PULL THE BIT FOR AN UNDER REAMER.WILL RUN SECOND WHIPSTOCK AND SET IN 4.5"TUBING. 19:30 19:45 i 0.25 DRILL N DPRB 9,490.00 PROD1 PERFORM CCL LOG FROM 9,200'MD TO 9,479' MD AT 15 FOOT PER MINUTE.PUMP AT 0.3 BPM WITH 940 PSI.DOWN WEIGHT 18K 19:45 - 22:00 2.25 DRILL N DPRB 9,490.00 PROD1 PULL OUT OF HOLE FROM 9,480'MD AT 63 FPM.PUMP AT 2.1 BPM WITH 1520 PSI. UP WEIGHT 36K.MUD WEIGHT IN AND OUT 8.6 PPG. 22:00 - 22:15 0.25 DRILL N DPRB 9,490.00 I PROD1 POOH TO BHA AT 200'.FLOW CHECK WELL- I STATIC. 22:15 - 22:45 0.50 DRILL N DPRB 9,490.00 PROD1 POOH WITH BHA.POP OFF INJECTOR AND SET BACK PULL AND LAYDOWN BUILD SECTION ASSEMBLY,BHA#7.BIT GRADE 5-8 22:45 - 23:30 0.75 DRILL N DPRB 9,490.00 PROD1 MAKE UP RIVES UNDER REAMER ASSEMBLY, BHA#8 AND RIH. 23:30 - 00:00 0.50 DRILL N DPRB 9,490.00 PROD1 STAB AND MAKE UP INJECTOR AND MAKE UP QUICK TEST SUB.PRESSURE TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS. Printed 6/17/2013 11:06:02AM Page e 16 of 38 North Ame nca-ALASKA BP r' g , Operation Summary Reporf� Common Well Name.D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4 282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/25/2013 00:00 - 01:30 1.50 DRILL N DPRB 9,398.00 PROD1 RUN IN HOLE WITH UNDER REAMER j ASSEMBLY BHA#8 AT 94 FPM TO 8,830'MD. PUMP AT 0.4 BPM WITH 750 PSI.DOWN WEIGHT 5K 01.30 - 02.00 0.50 DRILL N DPRB 9,398.00 PROD1 RUN TIE-IN LOG FROM 8,830'MD TO 8,858'MD AT 1.5 FPM WITH 17K DOWN WEIGHT.PUMP AT 0.4 BPM WITH 830 PSI.CORRECTION OF MINUS 0.5'. 02:00 - 02:15 0.25 DRILL N DPRB 9,398.00 PRODS RUN IN HOLE TO 9,330'MD AT 40 FPM WITH 17K DOWN WEIGHT.PUMP AT 0.34 BPM WITH 865 PSI OUT MM 0.6 BPM.MUD WEIGHT IN 1 AND OUT 8.6 PPG.VOLUME 311 BBLS.IA-400 PSI,OA-290 PSI. 02:15 - 04:00 1.75 DRILL N DPRB 9,398.00 PROD1 FUNDER REAM DOWN FROM 9,330'MD AT 2-5 FPM PUMPING AT 2.5 BPM WITH 3130 PSI. DOWN WEIGHT 16.5K.MINIMUM VIBRATION (YELLOW BAND)AT TOOL TO START,WITH HIGHER VIBRATION INTERMITTENT.SLOW DOWN APPROACHING FIRST"X"NIPPLE AT 9,355'MD TO 1.3 FPM.FIRST NIPPLE FOUND WITH MOTOR STALL AT 9359.5'MD,4.5' DEEPER THAN THE SCHEMATIC WHICH CORRELATES WITH OUR CCL LOG.SHUT DOWN PUMP AND PULL UP ABOVE X NIPPLE. THIS ALLOWS THE REAMER ARMS TO RELAX. DROP DOWN TO 9,360'MD AND BRING PUMPS BACK ON TO EXTEND REAMER ARMS. THIS TAKES APPROXIMATELY 5 MINUTES FOR FULL EXTENSION. CONTINUE UNDER REAMING DOWN AT 2 FPM PUMPING AT 2.6 BPM WITH 3344 PSI.DOWN WEIGHT 17K.THE SECOND X NIPPLE WAS ENCOUNTERED AT 9,395.5'MD WITHOUT STALLING.THIS WAS 5.5'DEEPER THAN THE SCHEMATIC BUT 1 ONLY 1'DEEPER THAN OUR CCL LOG. CONTINUE UNDER REAMING DOWN AT 2 FPM,PUMPING AT 2.6 BPM WITH 3310 PSI. 1 DOWN WEIGHT 17K.DID NOT SEE THE XN I NIPPLE AT 9,412'MD,(9,417'CCL).REAM TO 9,424'MD.UNDER REAM BACK UP TO 9,390' MD AND BACK DOWN TO 9,424'MD TO CLEAN UP AREA AROUND WHIPSTOCK SETTING I DEPTH.PULL AT 3.5 FPM WITH 35K UP WEIGHT.PUMP AT 2.6 BPM WITH 3355 PSI. DID NOT XNAT9,412'MDORX NIPPLE ATSSEE9,395.5'MD ON THE UPTHESTROKE OR ON THE DOWN STROKE. 04:00 - 04:30 0.50 DRILL N DPRB 9,398.00 PROD1 1 UNDER REAM UP FROM 9,424'MD TO 9,330' MD AT 3 FPM WITH 33K UP WEIGHT.PUMP AT 2.6 BPM WITH 3355 PSI.MUD WEIGHT IN AND OUT 8.6 PPG.VOLUME 312 BBLS.IA-670 PSI, 10A-500 PSI.DID NOT SEE XN NIPPLE OR 9,395'X NIPPLE,SAW SMALL BOBBLE AT 9,359'X NIPPLE.OPEN ECD.ALLOW THE REAMER ARMS TO RELAX INTO CLOSED POSITION. 04:30 - 05:00 0.50 DRILL N DPRB 9,398.00 PROD1 RIH TO 9,450'MD AT 10 FPM WITH 17K DOWN WEIGHT.PUMP AT 2.8 BPM WITH 2230 PSI.AT BOTTOM,FLOW CHECK-STATIC. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 17 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A C 82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) • (usft) 05:00 - 06:40 1.67 DRILL N DPRB 9,398.00 PROD1 POOH FROM 9,450'MD AT 59 FPM WITH 33K UP WEIGHT.PUMP AT 3 BPM WITH 2250 PSI. MUD WEIGHT IN AND OUT 8.6 PPG.VOLUME 310 BBLS.IA-725 PSI,OA-600 PSI. INCREASE TO 100 FPM WITH 28K UP • WEIGHT. 06:40 - 06:50 0.17 DRILL N DPRB 9,398.00 PROD1 PJSM TO LD THE UNDERREAMING BHA FLOW CHECK WELL 06:50 - 07:15 0.42 DRILL N DPRB 9,398.00 PROD1 GOOD NO FLOW CHECK,TAG UP AND REMOVE THE INJECTOR TO LD THE BHA.BHA OOH,UNDER REAMER BLADES SHOW A LITTLE WEAR BUT THE BUTTONS ARE IN GOOD SHAPE.LOAD OUT WEATHERFORD • TOOLS. 07:15 - 08:10 0.92 STWHIP N DPRB 9,398.00 WEXIT LOAD BTT WS TOOLS ON RIG MU WS TO SETTING TOOL AND SCRIBE 08:10 - 08:20 0.17 STWHIP N DPRB 9,398.00 WEXIT f PJSM TO MU THE WS BHA 08:20 - 09:00 0.67 STWHIP ` N DPRB 9,398.00 WEXIT MU BHA PU INJECTOR AND MU TO THE BHA 09:00 - 10:45 1.75 STWHIP N DPRB 9,398.00 -WEXIT RIH 10:45 - 11:00 0.25 STWHIP N DPRB 9,398.00 WEXIT LOG GAMMA TIE IN 11:00 - 11:25 0.42 STWHIP N DPRB 9,398.00 WEXIT CORRECT DEPTH-1',RIH TO 9230'TO LOG THE CCL TO 9425'BIT DEPTH 11:25 - 11:50 0.42 STWHIP N DPRB 9,398.00 WEXIT END CCL LOG,EVALUATE CCL BEFORE • SETTING WS 11:50 - 12:25 0.58 STWHIP N DPRB 9,398.00 WEXIT CCL DATA IS GOOD,CALL ODE TO SET TOWS AT 9398'4'BELOW THE X-NIPPLE AT 9394' WE HAVEAVERBALOKTO SET THE WS AT 9398' 11:55 PUH TO 9390'BIT DEPTH THEN RIH TO 9410.5'PLACING THE TOWS AT 9398' UP WT =40K 12:01 ON DEPTH AT 9410.5',ORIENT TO 180° TO PLACE TRAY AT THE TOP OF THE CASING FOR A LOW SIDE EXIT 12:07 PU TO 32K-8K LESS THAN PU AND CLOSE THE EDC '12:10 EDC IS CLOSED,PRESSURE UP TO SET THE WS 12:13 WS SHEARED AT 3700 PSI,SET 5K DOWN BUT GOT 9.8K WITH NO MOVEMENT 12:15 PU AND WE ARE FREE FROM THE WS, STOP POOH,CIRC TO FILL HOLE THEN SHUT DOWN TO FLOW CHECK THE WELL 12:25 - 14:15 1.83 STWHIP N DPRB 9,398.00 WEXIT GOOD NO FLOW,POOH,HOLD PJSM FOR LD/PU BHA,FLOWCHECK AGAIN AT SURFACE NO FLOW. BUMP UP INTO LUBRICATOR& POP OFF. 14:15 - 14:40 0.42 STWHIP N DPRB 9,398.00 WEXIT LD WHIPSTOCK SETTING BHA. 14:40 - 15:15 0.58 STWHIP N DPRB 9,398.00 WEXIT MU NOZZLE&JET STACK. 15:15 - 15:20 0.08 STWHIP N DPRB 9,398.00 WEXIT INSTALL TEST JOINT TO FUNCTION TEST THE BOPE FROM THE OPS CAB 15:20 - 15:30 0.17 STWHIP N DPRB 9,398.00 WEXIT PJSM TO MU THE BHA 15:30 - 16:10 0.67 STWHIP N DPRB 9,398.00 WEXIT MU THE MILLING BHA 16:10 - 16:30 0.33 STWHIP N DPRB 9,398.00 WEXIT RIH • Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 18 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) ji, Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/lime:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 16:30 - 20:00 3.50 STWHIP N SFAL WEXIT COILED TUBING REEL SWIVEL BEARING IS GOING OUT AND NEEDS TO BE REPLACED PERFORM LOTO TO SECURE THE REEL AND INJECTOR THE INJECTOR BREAK WILL BE SET AND THE POWER PACK SHUT DOWN AND LOTO.THE UPPER SET OF COMBI RAMS WILL BE CLOSED FOR A2ND BARRIER TO SECURE THE PIPE. WE HAVE 2 BARRIERS IN PLACE FOR THE COIL WITH THE INNER REEL VALVE THAT WAS TESTED DURING THE BOP TEST AND THE UPPER QUICK CHECK VALVES THAT WAS TESTED LAST NIGHT AFTER REHEADING COMPLETE REPAIR 20:00 - 20:15 0.25 STWHIP N SFAL j WEXIT PRESSURE TEST INNER REAL TO 250 PSI • LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS.INSPECT COIL AT RAM CLOSING AREA-OK. 20:15 - 21:30 1.25 STWHIP N DPRB 9,398.00 WEXIT RUN IN HOLE AT 97 FPM WITH 1K TO 19K. PUMP AT 0.3 BPM WITH 690 PSI TO 880 PSI. MUD WEIGHT IN AND OUT 8.6 PPG,VOLUME 278 BBLS.IA-160 PSI,OA-0 PSI. 21:30 - 21:45 0.25 STWHIP N DPRB 9,398.00 WEXIT LOG TIE-IN AT 1.5 FPM WITH 18K DOWN WEIGHT.PUMP AT 0.3 BPM WITH 800 PSI. MINUS 1 FOOT CORRECTION. 21:45 - 22:00 0.25 STWHIP N DPRB 9,398.00 WEXIT RIH AT 38 FPM WITH 19K DOWN WEIGHT. PUMP AT 0.3 BPM WITH 885 PSI.VOLUME 311 BBLS. 22:00 - 22:15 0.25 STWHIP N DPRB 9,398.00 WEXIT PUMP AT 0.3 BPM WITH 885 PSI.RUN DOWN AND TAG UP AT 9,399'MD.PULL BACK UP AND BRING PUMPS UP TO 2.5 BPM WITH 2300 PSI. TAG UP ON XN NIPPLE AND SEE MOTOR WORK,MILL OFF AND CONTINUE DOWN. PUMPING AT 2.5 BPM WITH 2225 PSI AND 18K DOWN WEIGHT.TAG UP AT 9,399'MD.FLAG PIPE.TOP OF WINDOWAT 9,399'MD. 22:15 - 00:00 1.75 STWHIP N DPRB 9,398.00 WEXIT BEGIN MILLING OPERATIONS.PUMPAT2.5 BPM WITH 2370 PSI,2235 PSI FREE SPIN. DOWN WEIGHT 20K.WOB 0.83K.TIME DRILL AT 1 FPH WITH MAX WOB AT 3K AND LESS THAN 300 PSI MOTOR WORK. -22:46/9,399.5/18,8K DOWN WEIGHT/1130 WOB/2.5 BPM/2235 PSI FREE SPIN/2355 PSI WORKING PRESSURE -23:18/9,400.0/18,5K DOWN WEIGHT/1920 WOB/2.5 BPM/2235 PSI FREE SPIN/2425 PSI WORKING PRESSURE -23:50/9,400.5/19.0K DOWN WEIGHT/2160 WOB/2.5 BPM/2235 PSI FREE SPIN/2410 PSI WORKING PRESSURE -00:00/9,401.7/18.0K DOWN WEIGHT/2780 WOB/2.5 BPM/2235 PSI FREE SPIN/2450 PSI WORKING PRESSURE Printed 6/17/2013 ,1:06:02AM North America-ALASKA-BP Page 19 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/26/2013 00:00 - 03:00 3.00 STWHIP N DPRB 9,398.00 WEXIT I MILLING WINDOW FROM 9,401'MD IN 4.5 TUBING X 7.625 CASING.TIME DRILL AT 1 FPH WITH MAX WOB AT 3K AND LESS THAN 300 PSI MOTOR WORK. -00:22/9,401.0/18.4K DOWN WEIGHT/3200 WOB/2.5 BPM/2235 PSI FREE SPIN/2487 PSI WORKING PRESSURE -01:22/9,401.5/18.4K DOWN WEIGHT/2920 WOB/2.5 BPM/2235 PSI FREE SPIN/2430 PSI WORKING PRESSURE -03:00/9,402.0/18.6K DOWN WEIGHT/2650 WOB/2.5 BPM/2235 PSI FREE SPIN/2336 PSI WORKING PRESSURE 03:00 - 07:15 4.25 STWHIP N DPRB 9,398.00 WEXIT 'MILLING WINDOW FROM 9,402'MD IN 4.5 TUBING X 7.625 CASING.TIME DRILL AT 1 FPH WITH MAX WOB AT 3K AND LESS THAN 300 PSI MOTOR WORK. -04:23/9,402.5/18.0K DOWN WEIGHT/3020 WOB/2.5 BPM/2235 PSI FREE SPIN/2357 PSI WORKING PRESSURE 05:19/9,402.7/17.7K DOWN WEIGHT/3000 WOB/2.5 BPM/2235 PSI FREE SPIN/2362 PSI WORKING PRESSURE -06:00/9,402.8/18.1 K DOWN WEIGHT/3200 WOB/2.5 BPM/2235 PSI FREE SPIN/2366 PSI WORKING PRESSURE -06:40/9,402.9/18.5K DOWN WEIGHT/3100 WOB/2.5 BPM/2235 PSI FREE SPIN/2363 PSI WORKING PRESSURE 07 15 - 12:30 5.25 STWHIP N DPRB 9,398.00 WEXIT MILLING WINDOW FROM 9,402'MD IN 4.5 TUBING X 7.625 CASING.TIME DRILLAT 1 FPH WITH MAX WOB AT 3K AND LESS THAN 300 PSI MOTOR WORK. -07:15/9,403.0/18.38K DOWN WEIGHT/3.16 K WOB/2.5 BPM/2235 PSI FREE SPIN/2402 PSI WORKING PRESSURE -10:00/9,403.5/18.2K DOWN WEIGHT/3K WOB/2.51 BPM/2235 FREE SPIN/2443 PSI WORKING PRESSURE -10:35/9,403.6/18.2K DOWN WEIGHT/3K WOB/2.53 BPM/2235 FREE SPIN/2476 PSI WORKING PRESSURE -11:30/9,403.7/17.9K DOWN WEIGHT/3.2K WOB/2.52 BPM/2235 FREE SPIN/2450 PSI WORKING PRESSURE -12:30/9403.97/17.5K DOWN WEIGHT/4.1K WOB/2.54 BPM/2235 FREE SPIN/2534 PSI WORKING PRESSURE Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 20 of 38 Operation Summary Report < • ---.... Common Well Name.D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date 6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release 6/6/2013 Rig Contractor.NORDIC CALISTA UWI Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:30 - 17:45 5.25 STWHIP N DPRB 9,398.00 WEXIT MILLING WINDOW FROM 9,403.97'MD IN 4.5 TUBING X 7.625 CASING.MILL WINDOW AHEAD BASED OFF WOB&MOTORWORK PARAMETERS. MAX WOB 3K&300 PSI MOTOR WORK -13:00 INCREASE RATE TO 2.75 BPM -14:00 9404.1'/17.7K DOWN WEIGHT/3.8K WOB/2.75 BPM/2450 PSI FREE SPIN/2736 PSI WORKING PRESSURE -15:00 9404.2'/17.4K DOWN WEIGHT/3.5K WOB/2.75 BPM/2450 PSI FREE SPIN/2736 PSI WORKING PRESSURE -15:50 9404.4'/17.4K DOWN WEIGHT/4.0K WOB/2.75 BPM/2450 PSI FREE SPIN/2761 PSI WORKING PRESSURE -16:20 9404.5'/17.3K DOWN WEIGHT/3.8K WOB/2.75 BPM/2450 PSI FREE SPIN/2771 PSI WORKING PRESSURE -17:45 9405.0'/17.4K DOWN WEIGHT/3.1K WOB/2.75 BPM/2450 PSI FREE SPIN 12761 PSI WORKING PRESSURE 17:45 - 19:00 1.25 STWHIP N DPRB 9,398.00 WEXIT MILLING WINDOW FROM 9405'MD IN 4.5 TUBING X 7.625 CASING. MAKING MORE PROGRESS AS THE FACE OF THE MILL APPEARS TO BE WORKING NOW. BEGIN TIME MILLING AGAIN AT 1'/HR. -18:07 9405.3'/17.7K DOWN WEIGHT/3.0K WOB/2.75 BPM/2450 PSI FREE SPIN/2739 PSI WORKING PRESSURE -19:00 9405.8'/17.6K DOWN WEIGHT/3.0K WOB/2.75 BPM/2450 PSI FREE SPIN/2673 PSI WORKING PRESSURE 19:00 - 00:00 5.00 STWHIP N DPRB 9,398.00 WEXIT MILLING WINDOW FROM 9406'MD IN 4.5 TUBING X 7.625 CASING. MILLING HAS SLOWED ONCE AGAIN. CONTINUE TO TIME MILLING AGAIN AT 11HR. -20:00 9406.3'/18.7K DOWN WEIGHT/2.8K WOB/2.75 BPM/2450 PSI FREE SPIN/2736 PSI WORKING PRESSURE -21:00 9406.6'/18.9K DOWN WEIGHT/3.0K WOB/2.75 BPM/2450 PSI FREE SPIN/2666 PSI WORKING PRESSURE -00:00 9406.9'/18.7K DOWN WEIGHT/3.3K WOB/2.75 BPM/2450 PSI FREE SPIN/ 2637PSI WORKING PRESSURE Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 21 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UVI: Active datum:Ong RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 5/27/2013 00:00 - 02:30 2.50 STWHIP N DPRB 9,398.00 WEXIT MILLING WINDOW FROM 9406'MD TO 9,407' MD IN 4.5 TUBING X 7.625 CASING. MILLING HAS SLOWED ONCE AGAIN. CONTINUE TO • TIME MILL AT 1 FPH.UNABLE TO MAKE 1 HEADWAYAT 00:45,ONLY DRILLING OFF 150 LBS WOB IN LAST HOUR.PICK UP OFF BOTTOM.NOTICE MOTOR WORK GOING UP THROUGH XN NIPPLE AT 9,395'MD.WORK BACK DOWN.RESET PARAMETERS. CONTINUE MILLING. -00:45 9406.9'/18.7K DOWN WEIGHT/3.0K WOB/2.75 BPM/2560 PSI FREE SPIN/2615 PSI WORKING PRESSURE • 02:00 9407.0/18.0K DOWN WEIGHT/3.0K WOB/2.75 BPM/2560 PSI FREE SPIN/2625 PSI WORKING PRESSURE 02:30 - 02:45 0.25 STWHIP N DPRB 9,398.00 WEXIT •UNABLE TO MILL OFF.DECISION MADE TO POOH AND CHECK MILLS.PULL UP ABOVE WINDOW TO 9,380'MD.FLOW CHECK WELL- STATIC.MUD WEIGHT IN AND OUT 8.6 PPG. 02:45 - 05:00 2.25 STWHIP N DPRB 9,398.00 ' WEXIT OPEN EDC.PUMP HI-VIS SWEEP.POOH.JOG COIL.PULL TO BHAAT 200'.PULL AT 96 FPM WITH 35K UP WEIGHT.PUMP AT 3.4 BPM WITH 2955 PSI.VOLUME 319 BBLS.IA-875 PSI,OA-615 PSI. • •05:00 - 05:15 0.25 • STWHIP N DPRB 9,398.00 WEXIT FLOW CHECK WELL-STATIC.PULL OUT OF HOLE TO BHA. 05:15 - 06:00 0.75 STWHIP N DPRB 9,398.00 WEXIT POOH WITH BHA.MILL 3.79"GO,3.78"NO-GO. RING WEAR ON UPPER SECTION OF NOSE OF WINDOW MILL.MILLING SURFACE WORN ON OUTER EDGE OF WINDOW MILL.STRING MILL 3.79 NO-GO BUT SHOWING SOME SURFACE WEAR. 06:00 - 06:30 0.50 STWHIP N DPRB 9,398.00 WEXIT CREW CHANGE 06:30 - 06:45 0.25 STWHIP N DPRB 9,398.00 WEXIT PJSM TO CUT COIL FOR CHROME MANAGEMENT,CHANGE PACK OFFS AND RE-HEAD 06:45 - 10:15 3.50 STWHIP N DPRB 9,398.00 WEXIT CUT COIL FOR CHROME MANAGEMENT, CHANGE PACK OFFS AND RE-HEAD 06:55 CUT 100'OF COIL 07:00 MEG TEST ELINE 08:00 MU THE UQC AND TEST THE CHECK VALVES 09:10 GOOD TEST,CHANGE OUT THE PACK-OFFS 09:50 CLOSE THE MASTER&SWAB TO TEST THE LUBRICATOR&PACK-OFF 10:15 TEST LUBRICATOR AND PACK-OFFS 10:15 - 10:35 0.33 STWHIP N DPRB 9,398.00 WEXIT GOOD TEST ON LUBRICATOR AND PACK OFF, CLOSE THE CHOKE TO OPEN BACK UP TO THE WELL MASTER&SWAB OPEN,NO PRESSURE OPEN CHOKE AND PUMP UNTIL WE HAVE 1:1 RETURNS FLOW CHECK WELL 10:35 - 10:50 0.25 STWHIP NDPRB 9,398.00 WEXIT GOOD NO FLOW,HOLD PJSM TO MU THE WINDOW BHA 10:50 - 11:35 0.75 STWHIP N DPRB 9,398.00 WEXIT REMOVE INJECTOR AND MU THE MILLING BHA Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 22 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 ! Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11:35 - 13:15 1.67 STWHIP N DPRB 9,398.00 WEXIT RIH 13:15 - 13:35 0.33 ' STWHIP N DPRB 9,398.00 WEXIT PERFORM TIE IN LOG TO FORMATION- APPLY CORRECTION 13:35 - 14:05 0.50 STWHIP N DPRB 9,398.00 WEXIT CORRECT DEPTH+0.5'. RIH&TAG UP AT 9406.8'.PUW AT 9300'=37.5K LBS. FREE SPIN=2660 PSI. 14:05 - 16:00 1.92 STWHIP N DPRB 9,398.00 WEXIT RIH AT 1'/MIN AND SEE MOTORWORK AT 9406.8'.START MILLING WINDOW WITH NEW DIAMOND SPEED MILL AND STRING MILL AS WOB&MOTORWORK DICTATES. -14:08 9406.8'/18.9K DOWN WEIGHT/1.2K WOB/2.79 BPM/2660 PSI FREE SPIN/2842 PSI WORKING PRESSURE -15:02 9407.3'/17.8K DOWN WEIGHT/2.4K WOB/2.79 BPM/2660 PSI FREE SPIN/3014 PSI WORKING PRESSURE -15:36 9407.6'/18.2K DOWN WEIGHT/2.0K WOB/2.79 BPM/2660 PSI FREE SPIN/3007 PSI WORKING PRESSURE"POSSIBLE EXIT** 15:59 9407.9'/18.6K DOWN WEIGHT/1.1K WOB/2.79 BPM/2660 PSI FREE SPIN/2937 PSI WORKING PRESSURE 16:00 - 19:30 3.50 r STWHIP N DPRB 9,398.00 WEXIT ;TIME MILLING RATHOLE SECTION AT 1'/HR TO LET STRING MILL DRESS BOW. OBSERVE SMALL AMOUNT OF CHERT COMING ACROSS SHAKERS. -16:17 9408.2'/19.0K DOWN WEIGHT/0.35K WOB/2.79 BPM/2660 PSI FREE SPIN/2823 PSI WORKING PRESSURE 16:41 9408.5'/18.8K DOWN WEIGHT/0.36K WOB/2.79 BPM/2660 PSI FREE SPIN/2842 PSI WORKING PRESSURE -16:59 9408.8'/18.9K DOWN WEIGHT/0.21 K WOB/2.79 BPM/2660 PSI FREE SPIN/2769 PSI WORKING PRESSURE AT 9409.1'BEGIN MILLING AHEAD IN RATHOLE AT 5-10 FPH WITH 200-250 PSI MOTORWORK AND 0.5-1.0 KLBS WOB. GEO CONFIRMS FORMATION IN BOTTOMS UP SAMPLE TAKEN AT 9408.5'. MM IN 2.80 BPM/MM OUT 2.81 BPM/MW IN 8.65 PPG/MW OUT 8.58 PPG/CIRC PSI 2856 PSI/IA 767 PSI/OA 374 PSI PUMP HI VIS SWEEP AT 9415'.COMPLETE I RATHOLE TO 9,420'MD. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 23 of 38 Operation Summary Report Common Well Name:0-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 ,X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) • 19:30 - 23:00 3.50 • STWHIP N • DPRB 9,398.00 WEXIT MAKE 3 REAMING PASSES FROM 9,420'MD TO 9,396'MD.PUMP AT 2.8 BPM WITH 2655 PSI.UP WEIGHT 35K,DOWN WEIGHT 17K. FIRST UP PASS SAW 100 PSI MOTOR WORK IN OPEN HOLE AND BOTTOM OF WINDOWAT 9,408'MD CLEARING FROM MID TO TOP OF WINDOWAT 9,399'MD.FIRST DOWN PASS AND SUBSEQUENT PASSES SHOWED NO MOTOR WORK.MUD WEIGHT IN AND OUT 8.6 PPG WITH 321 BBLS VOLUME.IA-850 PSI,OA 540 PSI.FINISH PASSES WITH NO PROBLEMS ENCOUNTERED.PULL UP THROUGH WINDOW WITH NO PROBLEMS AND SHUT DOWN. 23:00 - 23:15 0.25 STWHIP N DPRB 9,398.00 WEXIT DRY DRIFT WINDOW TO BOTTOM OF RATHOLE AT 15 FPM AND 20K DOWN WEIGHT WITH NO BOBBLES AND NO LOSS OF COIL WEIGHT.BRING UP PUMPS TO 0.7 BPM WITH 1200 PSI AND PULL UP ABOVE WINDOW.UP WEIGHT 37K.FLOW CHECK WELL-STATIC. OPEN EDC.MUD WEIGHT IN AND OUT 8.6 PPG. 23:15 - 00:00 0.75 STWHIP N DPRB 9,398.00 WEXIT POOH AT 95 FPM WITH 36K UP WEIGHT. PUMP AT 3.4 BPM WITH 2895 PSI.VOLUME 322 BBLS.NO OVERPULLS. 5/28/2013 00:00 - 01:00 1.00 STWHIP N DPRB 9,398.00 WEXIT POOH AT 95 FPM WITH 36K UP WEIGHT. PUMP AT 3.4 BPM WITH 2895 PSI.VOLUME 322 BBLS.NO OVERPULLS.PULL TO BHAAT 200'. •01:00 - 01:15 0.25 STWHIP N DPRB 9,398.00 WEXIT FLOW CHECK WELL AT BHA-STATIC.POP OFF INJECTOR AND STAND BACK. 01:15 - 01:45 0.50 STWHIP : N DPRB 9,398.00 WEXIT LAY DOWN MILLING ASSEMBLY,BHA#11. WINDOW MILL 3.79"GO,3.78"NO-GO.STRING MILL 3.79"NO-GO. 01:45 - 02:15 0.50 STWHIP N DPRB 9,398.00 WEXIT PICKUP AND MAKE UP BUILD SECTION ASSEMBLY,BHA#12 AND RUN IN HOLE. 02:15 - 02:45 0.50 STWHIP N DPRB 9,398.00 WEXIT STAB INJECTOR AND MAKE UP QUICK TEST • SUB.TEST TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS. 02:45 - 04:30 1.75 STWHIP N DPRB 9,398.00 ' WEXIT RUN IN HOLE WITH BUILD SECTION DRILLING ASSEMBLY,BHA#12 AT 98 FPM.PUMP AT 0.4 BPM WITH 732 PSI.VOLUME 278 BBLS WITH 8.6 PPG IN AND OUT.IA-490 PSI,OA-240 PSI.RUN IN TO 8,855'MD. 04:30 - 04:45 0.25 STWHIP N DPRB 9,398.00 WEXIT LOG TIE-IN FROM 8,855'MD TO'MD AT 1.5 FPM WITH 17K DOWN WEIGHT.PUMP AT 0.4 BPM WITH 980 PSI.CORRECTION OF MINUS 2'. VOLUME 318 BBLS.CLOSE EDC. • 04:45 - 05:00 0.25 STWHIP N DPRB 9,398.00 WEXIT RUN IN HOLE WITH BUILD SECTION DRILLING ASSEMBLY,BHA#12 AT 98 FPM WITH 17K DOWN WEIGHT.PUMP AT 0.3 BPM WITH 1060 PSI,OUT MM 0.8 BPM.MUD WEIGHT IN AND OUT 8.6 PPG.ORIENT TO LOW SIDE FOR WINDOW EXIT.SLOW RUNNING SPEED AND SLIDE THROUGH WINDOW WITH NO PROBLEMS.GO STRAIGHT TO BOTTOM AND TAG UP AT 9,421'.PULL UP TO TAKE SLOW PUMP RATES. • 05:00 - 05:15 0.25 STWHIP N DPRB 9,398.00 WEXIT TAKE SLOW PUMP RATES BELOW THE WINDOW.ORIENT TOOLFACE TO 80°LEFT OF HIGH SIDE. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 24 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:15 - 06:15 1.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD IN BUILD SECTION.PUMP AT 2.8 BPM WITH 2875 PSI, FREE SPIN 2770 PSI OUT MICRO MOTION 2.8 BPM.WOB 0.8K WITH 16K DOWN WEIGHT. VOLUME 318 BBLS.IA-605 PSI,OA-180 PSI. 06:15 - 07:10 0.92 DRILL P PROD1 ON BOTTOM DRILLING FREE SPIN=2860 PSI AT 2.8 BPM RATE IN=2.8 BPM RATE OUT=2.8 BPM ROP=41 FPH WOB=1.15K CIRC PSI= 2974 PSI MW IN=8.65 PPG MW OUT=8.59 PPG ECD =9.83 PPH IAP=782 PSI OAP=356 PSI PVT=318 BBLS 07:10 - 08:20 1.17 DRILL P PROD1 ON BOTTOM DRILLING FREE SPIN=2860 PSI AT 2.8 BPM RATE IN=2.99 BPM RATE OUT=2.99 BPM ROP=39 FPH WOB=2.61 K CIRC PSI= 3204 PSI MW IN=8.65 PPG MW OUT=8.59 PPG ECD =9.86 PPH IAP=836 PSI OAP=457 PSI PVT=316 BBLS 08:20 - 09:30 1.17 DRILL P PROD1 PU TO CHECK PARAMETERS RATE IN=2.99 BPM RATE OUT=2.99 BPM ROP=102 FPH WOB=2.02 K CIRC PSI= 3267 PSI MW IN=8.67 PPG MW OUT=8.46 PPG ECD =9.86 PPH IAP=973 PSI OAP=542 PSI PVT=316 BBLS 09:30 - 10:00 0.50 DRILL P PROD1 ON BOTTOM DRILLING FREE SPIN=2860 PSI AT 2.8 BPM RATE IN=2.99 BPM RATE OUT=2.99 BPM ROP=32 FPH WOB=4.75 K CIRC PSI= 3250 PSI MW IN=8.67 PPG MW OUT=8.64 PPG ECD =9.86 PPH IAP=1003 PSI OAP=615 PSI PVT=316 BBLS 10:00 - 16:30 6.50 DRILL N SFAL 9,613.00 PROD1 LOST HYDRAULIC PRESSURE TO REEL AND STARTED FREE SPINNING PU OFF BOTTOM,CIRC BOTTOMS UP THEN REDUCE RATE 12:15 LOOKS LIKE CTS NEEDS TO REPLACE THE PUMP ON THE POWER PACK 16:10 START UP POWER PACK TO TEST THE HYDRAULIC PUMP 16:20 PU 20'AND WE ARE MOVING FREE,GO BACK TO BOTTOM AND CONTINUE DRILLING 16:30 - 17:45 1.25 DRILL P PROD1 CONTINUE DRILLING AHEAD FREE SPIN=2860 PSI AT 2.8 BPM RATE IN=3.00 BPM RATE OUT=3.00 BPM ROP=73 FPH WOB=2.09 K CIRC PSI= 3292 PSI MW IN=8.67 PPG MW OUT=8.59 PPG ECD =9.86 PPH IAP=1095 PSI OAP=978 PSI PVT=313 BBLS Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 25 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:45 - 22:15 4.50 DRILL P PROD1 PU TO CHECK PARAMETERS BEFORE DRILLING AHEAD. DRILL AHEAD IN BUILD SECTION. RATE IN=3.0 BPM RATE OUT=3.0 BPM I ROP=75-120 FPH WOB=1.2-3.4 K CIRC PSI=3220-3540 PSI MW IN=8.7 PPG MW OUT=8.67 PPG ECD =9.86 PPH IAP=830 PSI OAP=600 PSI DRILL AHEAD TO 9750'. CIRCULATE SAMPLE UP TO FIND HEAVY OIL TAR INTERVAL. I CONTINUE TO DRILL AHEAD IN IN 25' INCREMENTS,INDICATION OF HOT AT 9825' WITH CONFIRMATION FROM SAMPLE AT 9850'. DRILL TO 9865'TO LAND BUILD SECTION. FLOW CHECK OFF BOTTOM. 22:15 00:00 1.75 DRILL P I PROD1 PULL OUT OF HOLE TO WINDOW. FLOW CHECK WELL AT WINDOW. ALL GOOD. OPEN EDC AND POH TO SURFACE. 5/29/2013 00:00 - 00:45 0.75 DRILL P PROD1 PULL OUT OF HOLE TO SURFACE. RUN DOWN,PICK BACK UP AND FLOW CHECK WELL. CONDUCT PJSM ON LAYING DOWN BHA WHILE FLOW CHECKING WELL. ALL GOOD. CLOSE EDC,POWER DOWN. 00:45 - 03:00 2.25 DRILL P PROD1 POP OFF WITH INJECTOR,STAND BACK. BREAK DOWN BHA. BIT GRADE 1-1-WT. BREAK MOTOR CONNECTION TO REPLACE DGS SUB. CHANGE MOTOR BEND TO 1.28° AKO. PJSM ON PICKING UP,HANDLING BHA AND INSTALLING DIFFERENT BIT. MAKE UP SAME BHA CONFIGURATION WITH RESISTIVITY AND HYCALOG HELIOS 3.75"X 4.25"SRH3011M-B4 BIT. SCRIBE MWD TOOL, MAKE UP TO COIL CONNECTOR,STAB ON. PRESSURE TEST QUICK TEST SUB. POWER ON EDC,OPEN UP. 03:00 - 06:15 3.25 DRILL P PROD1 RIH WITH 4.25"LATERAL BHA. LOG TIE-IN WITH-2'CORRECTION. CONTINUE TO RUN IN HOLE. OBTAIN SLOW PUMP RATES. OBTAIN JOARPS SURVEY WITH NEW GAMMA SUB. TAG BOTTOM ON DEPTH AT 9870'. 06:15 - 06:45 0.50 DRILL P PROD1 DRILL AHEAD FROM 9870'. FREE SPIN=3150 PSI AT 3.0 BPM RATE IN=3.0 BPM RATE OUT=3.1 BPM ROP=160 FPH WOB=1.36 K CIRC PSI= 3201 PSI MW IN=8.70 PPG MW OUT=8.69 PPG ECD =10.00 PPG IAP=870 PSI OAP=996 PSI PVT=296 BBLS BLEED OA DOWN TO 500 PSI 06:45 - 06:55 0.17 DRILL P PROD1 DD IS TRYING TO BUILD ANGLE WITH A STRAIGHT UP HS TOOLFACE BUT IT WE ARE HOLDING OR LOOSING A LITTLE ANGLE. REDUCE PUMP RATE AND INCREASE ROP TO 160 TO 170 FPH TO TRY AND BUILD ANGLE IN SHORT BURSTS OF 25'THEN PU TO SPACE OUT THE CUTTINGS TO NOT LOAD UP THE WELL Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 26 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release:6/6/2013 Rig Contractor.NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A i 82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:55 - 07:00 0.08 DRILL P PROD1 CONTINUE DRILLING AHEAD DRILL AHEAD FROM 9870'. FREE SPIN=2650 PSI AT 2.7 BPM RATE IN=2.71 BPM RATE OUT=2.71 BPM ROP=170 FPH WOB=1.42 K CIRC PSI= 2816 PSI MW IN=8.69 PPG MW OUT=8.69 PPG ECD =9.97 PPG LAP=570 PSI OAP=469 PSI PVT=296 BBLS 07:00 - 07:30 0.50 DRILL P PROD1 FAST DRILLING,PU TO CLEAR THE OH OF CUTTINGS AND RESURVEY 9975.NEAR BIT IS STARTING TO SHOW SOME BUILD 07:30 - 07:40 0.17 DRILL P PROD1 WE ARE NOT ABLE TO BUILD THEANGLEWE NNED TO ACHEIVE TEH NEW TARGET FROM THE GEO'S,POOH TO PU A BIGGER BEND MOTOR FLOW CHECK WELL BEFORE POOH 07.40 - 08:00 0.33 DRILL P PROD1 GOOD NO FLOW,POOH TO WINDOW AND FLOW CHECK AGAIN 08.00 - 08:10 0.17 DRILL P PROD1 FLOW CHECK WELL ABOVE WINDOW AND OPEN EDC 08:10 - 10:10 2.00 DRILL P PROD1 GOOD NO FLOW CHECK,POOH 10:10 - 10:20 0.17 DRILL P PROD1 FLOW CHECK AT SURFACE 10:20 - 10:40 0.33 DRILL P PROM TAG UP AND LD THE BHA TO ADJUST THE MOTOR 10:40 - 11:00 0.33 DRILL- P PROD1 BHA OOH BIT GRADE=4-1 CT,ADJUST MOTOR 11:00 - 11:40 0.67 DRILL P PROD1 MU THE BHA MU THE INJECTOR TO THE BHA AND STAB ON THE WELL 11:40 - 13:25 1.75 DRILL P PROD1 RIH 13:25 - 13:45 0.33 DRILL P PROD1 LOG TIE IN 13:45 - 14:00 0.25 DRILL P PROD1 CORRECT DEPTH+1'AND RIH 14:00 - 14:15 0.25 DRILL P PROD1 OBTAIN SPR'S 14:15 - 14:40 0.42 DRILL P PROD1 TAG BOTTOM ON DEPTH AND CONTINUE DRILLING FREE SPIN=2760 PSI AT 2.7 BPM RATE IN=2.71 BPM RATE OUT=2.71 BPM ROP=160FPH WOB=2.78K CIRC PSI= 2856 PSI MW IN=8.69 PPG MW OUT=8.65 PPG ECD =9.88 PPH IAP=488 PSI OAP=399 PSI PVT=288 BBLS 14:40 - 14:45 0.08 DRILL P PROD1 CONTINUE DRILLING FREE SPIN=3050 PSI AT 3.0 BPM RATE IN=3.02 BPM RATE OUT=3.05 BPM ROP=141 FPH WOB=2.34 K CIRC PSI= 3369 PSI MW IN=8.71 PPG MW OUT=8.65 PPG ECD =9.95 PPH IAP=554 PSI OAP=442 PSI PVT=2.87 BBLS 114:45 - 15:00 0.25 DRILL P PROD1 PU TO 10035'AND 10065'TO RESHOOT SURVEYS Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 27 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date 6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UW: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:00 - 16:05 1.08 DRILL P PROD1 STOP DRILLING AND PU,WE ARE 114'AWAY FROM THE PLANNED LINE.CALL TOWN TO VERIFY WE ARE OK TO CONTINUE DRILLING 16:05 - 16:15 0.17 DRILL P PROD1 WE ARE OK TO CONTINUE DRILLING 16:15 - 18:00 1.75 DRILL P L PROD1 STOP DRILLING WE ARE NOT GETTING ANY TURN TO THE RIGHT AND WE ARE GETTING .CLOSE TO THE EDGE OF THE POYGON. TAG BOTTOM AND PUMP UP A SURVEY TO SEE IF WE ARE STILL GOING TO THE LEFT OR STARTING TO GET SOME RIGHT TURN SWAP TO NEW MUD 18:00 - 19:30 1.50 DRILL P PROD1 SURVEYS ARE GOOD,DRILL AHEAD TO NEXT SURVEY POINT AT 10,120',SPOT CHECK TO SEE IF WE ARE GETTING OUR TURN. ACHIEVING TURN AND BUILD RATE AS EXPECTED. 19:30 - 21:30 2.00 DRILL P PROD1 DRILL AHEAD TO 10,140',TO 10,150',TO 10,160',AND TO 10,170'TO TAKE SURVEYS AT EACH POINT,TRACKING PROJECTED DIRECTIONAL PATH. STOP AT 10,170'AND CONSULT WITH GEOLOGIST AND TOWN ODE REGARDING POLYGON AND DIRECTIONAL TARGETS. DRILL TO 10,180'TO CONFIRM _ l RESISTIVITY READINGS. 21:30 - 23:15 1.75 DRILL : N WAIT PROD1 WAIT ON DIRECTION FROM TOWN REGARDING FORWARD PLAN. SLOWLY BEGIN PULLING UP HOLE TO CLEAN WELLBORE IN ANTICIPATION OF PULLING !OUT OF HOLE. -PIT VOLUME 336 BBLS,MW IN 8.55 PPG,MW OUT 8.48 PPG,2900 PSI AT 2.9 BPM,IA AT 465 PSI,OA AT 520 PSI -FLOW CHECK OFF BOTTOM,GOOD TO GO. POH WITH BHA FOR PICKING UP BILLET ASSEMBLY. 23:15 - 00:00 0.75 DRILL N DPRB PROD1 POH WITH BHA FOR PICKING UP BILLET ASSEMBLY. PULL TO WINDOW. FLOW CHECK OPEN EDC. JET ACROSS WHIPSTOCK TRAY AT MAX RATE. 5/30/2013 0000 - 0200 2.00 DRILL N DPRB PROD1 POH WITH LATERAL BHA. FLOW CHECK AT SURFACE. CONDUCT PJSM ON LAYING DOWN BHA. 02:00 - 03:45 i 1.75 DRILL N DPRB PROD1 POP OFF WITH INJECTOR. BREAK OFF BIT, BIT GRADE. LAY DOWN BHA. MOBILIZE BILLET ASSEMBLY TO RIG FLOOR. ASSEMBLE BILLET. CONFIRM HIGH SIDE. PJSM ON PICKING UP AND MAKING UP • BILLET ASSEMBLY TO COIL TOOLS. PICK UP ASSEMBLY,MAKE UP TO HIGH SIDE MARKING. STAB ON WITH INJECTOR. PRESSURE TEST QUICK TEST SUB AND OPEN EDC. 03:45 - 06:00 2.25 DRILL N DPRB PROD1 RIH WITH BILLET ASSEMBLY. LOG TIE-IN. 06:00 - 06:20 0.33 DRILL N DPRB PROD1 LOG TIE IN 06:20 - 06:40 0.33 DRILL N DPRB PROD1 CORRECT DEPTH-1.5',COMPLETE CHANGE OUT BEFORE RIH TO SET BILLET Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 28 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) i Start Date:5/18/2013 End Date:6/4/2013 X3-o12VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:40 - 06:50 0.17 DRILL N DPRB PROD1 EVERYONE IS ON THE SAME PAGE,RIH TO SET THE TOP OF BILLET AT 9620'WITH A 20' ROHS TOOLFACE BILLET LENGTH=11.4'RIH TO 9631.4' (BOTTOM OF BILLET DEPTH) _ 06:50 - 06:55 0.08 DRILL N DPRB PROD1 ON DEPTH WITH 20'ROHS TOOL FACE ONLINE WITH PUMP TO SET BILLET BILLET SET AT 3800 PSI,SET DOWN 7K (MAX WOB WITH SIDETRACK MOTOR);TOP OF BILLET 9620' 06:55 - 07:00 0.08 DRILL N DPRB , PROD1 PU CLEAN FROM BILLET,ONLINE WITH PUMP TO ENSURE HOLE IS FULL AND CLEAN AROUND US BEFORE WE SHUT DOWN TO FLOW CHECK THE WELL 07:00 - 07:20 0.33 DRILL N DPRB PROD1 SHUT DOWN THE PUMP AND FLOW CHECK THE WELL GOOD NO FLOW,PU ABOVE THE WINDOW AND FLOW CHECK THE WELLAGAIN 07:20 - 07:50 0.50 DRILL N DPRB • PROD1 FLOW CHECK ABOVE THE WINDOW NEW THICK MUD TAKING A LITTLE TIME TO STOP DRAINING OUT OF THE LINES S 07:50 - 09:25 1.58 DRILL N DPRB PROD1 GOOD NO FLOW,POOH 09:25 09:40 0.25 DRILL N DPRB PROD1 FLOW CHECK AT SURFACE 09:40 - 10:00 0.33 DRILL N DPRB PROD1 GOOD NO FLOW CHECK,TAG UP AND LD THE BILLET RUNNING TOOL 10:00 - 11:30 1.50 DRILL N DPRB PROD1 RUNNING TOOL OUT OF HOLE REMOVE THE UQC AND PREP TO PUMP SLACK AND CUT COIL REVERSE CIRCULATED COIL,HEARD THE WIRE MOVE BUT IT LOOKS LIKE IT JUST REDISTRIBUTED THE SLACK IN THE REEL BECAUSE THE WIRE WAS STILL AT THE END, CTS MANAGEMENT SAYS ITS FINE AND TO JUST CUT 100'OF COIL FOR CHROME MANAGEMENT,REHEAD THEN PUMP SLACK 1FORWARD • -GAVE 24-HOUR NOTIFICATION TO AOGCC FOR UPCOMING BOP TEST AT 1100 HRS _ 11:30 - 13:30 2.00 DRILL N DPRB PROD1 SLACK PUMPED&CUT 100',STRIP BACK ELINE ARMOR AND MEG TEST ELINE GOOD TEST,HEAD UP THE UQC • -RECEIVED REPLY BACK FROM AOGCC REP BOB NOBLE REGARDING BOP TEST AT NOON;TEST WAIVED IF CONDUCTED WITHIN NEXT 48-HOURS BUT UPDATE MUST BE I GIVEN IF TEST DOES NOT BEGIN WITHIN THAT TIME FRAME 13:30 14:15 0.75 DRILL N DPRB PROD1 PRESSURE TEST THE UQC CHECK VALVES 14:15 - 14:30 0.25 DRILL N DPRB PROD1 GOOD PT ON BHI CHECK VALES STAB ON AND PUMP SLACK FORWARD 14:30 - 15:00 0.50 DRILL N DPRB PROD1 SLACK PUMPED FORWARD,CLOSE THE SWAB&MASTER VALVES AND FLUID PACK THE STACK TO PT THE LUBRICATOR 15:00 15:15 0.25 DRILL N DPRB PROD1 GOOD LUBRICATOR TEST,CLOSE CHOKE AND OPEN THE MASTER&SWAB VALVES TO CHECK FOR PRESSURE NO PRESSURE,OPEN CHOKE AND FLUID PACK TO FLOW CHECK WELL GOOD NO FLOW Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 29 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:15 - 15:30 0.25 DRILL N DPRB PROD1 I HOLD PJSM TO MU THE KICK OFF BHA 15:30 - 15:45 0.25 DRILL N DPRB PROD1 MU BUILD BHA:3.75"BY 4.25"BI-CENTER BIT, 2-7/8"LOW SPEED MOTOR,COIL TRACK TOOLS WITH RESISTIVITY 15:45 - 16:00 0.25 DRILL N DPRB PROD1 PU THE INJECTOR AND MU TO THE BHA 16:00 - 16:10 0.17 DRILL N DPRB PROD1 PT THE QTS 16:10 - 17:55 1.75 DRILL N DPRB PROD1 RIH WITH BUILD BHA. ORIENT BHA TO 20° ROHS BEFORE EXITING WINDOW. 17:55 - 18:15 0.33 DRILL N DPRB PROD1 I LOG TIE IN WITH-1.5'CORRECTION 18:15 - 19:45 1.50 DRILL N DPRB PROD1 SLOWLY RIH WITH BUILD BHA WHILE REVIEWING DIRECTIONAL PLAN AND KICK OFF PLAN. OBTAIN AND RECORD SLOW PUMP RATES. RUN DOWN AND TAG BILLET WITH MINIMAL PUMPS AT 9621'. PICK UP, COME ON WITH PUMPS TO 2.55 BPM,AND RE-TAG INITIALLY AT 9620.4'WITH MINOR MOTOR WORK BUT NO WOB. 19:45 - 21:45 2.00 DRILL N DPRB PROD1 BEGIN MILLING PROCESS TO KICK OFF OF ALUMINUM BILLET AT 9621'. FREE SPIN OF 2500 PSI AT 2.55 BPM. MW IN 8.55 PPG,MW OUT 8.50 PPG. CIRCULATING PRESSURE 2530-2600 PSI AT 2.5 BPM WHILE MILLING FIRST FOOT,WOB .8-.9K. BEGINNING TO SEE ALUMINUM AT SHAKER. -INCREASE WOB TO 1.5-1.9K WOB,2610-2680 PSI CIRCULATING PRESSURE. PLENTY OF EVENLY SIZED ALUMINUM CUTTINGS COMING ACROSS SHAKER. NO DIFFICULTY MAINTAINING DIRECTIONAL CONTROL. -DRILL PAST BILLET TO 9624'MAINTAINING 140-190 PSI DIFFERENTIAL MOTORWORK. 21:45 - 00:00 2.25 DRILL N DPRB PROD1 DRILL DIRECTIONALLY AHEAD FROM 9624' MAINTAINING SLOP ROB WITH CONSISTENT WOB TO ENSURE SMOOTH TRANSITION OFF OF BILLET AND HOLDING 20°ROHS ORIENTATION. -FREE SPIN 2530 PSI AT 2.55 PSI. MAINTAIN 1-1.6K WOB. STALL AT 9627'BUT NOT CONTRIBUTED TO BILLET. PICK UP TO BREAKOVER,COME BACK DOWN AND DRILL AHEAD FROM 9627'. FREE SPIN 2730 PSI AT 2.7 BPM. -STALL AGAIN AT 9627',PICK UP AND BRING RATE UP TO 2.9 BPM,FREE SPIN OF 2920 PSI AND SLOWLY MOVE DOWN TO BOTTOM. DRILL AHEAD INITIALLY WITH LESS WEIGHT ON BIT AND SLOWER ROP. PICK UP ROP AND APPLY WEIGHT,DRILLING DOING WELL. 3095-3200 PSI AT 2.9 BPM,1.9-2.9K WOB, ROP AVERAGING 80 FPH. -DRILL AHEAD TO 9696'MD -MW IN 8.56 PPG,MW OUT 8.49 PPG,ECD 10.0 PPG 5/31/2013 00:00 - 01:30 1.50 DRILL N DPRB PROD1 DRILL AHEAD FROM 9696'MD. FREE SPIN 2990 AT 2.9 BPM -3090 PSI AT 2.9 BPM,1.2-2.0K WOB,70 FPH ROP MW IN 8.58 PPG,MW OUT 8.54 PPG,ECD 10.0 PPG Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 30 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs • Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:30 - 01:45 0.25 EVAL N DPRB PROD1 DIRECTIONAL DRILLER CONDUCTING SURVEY CHECKS,INTERPOLATION TO CONFIRM DIRECTIONAL PATH. LANDED AT PLANNED TARGET TVD OF 8950'AT THE DIRECTIONAL PLAN MEASURED DEPTH OF 9750'. 01:45 - 02:30 0.75 DRILL N DPRB ' PROD1 DRILL AHEAD FROM 9755'MD. FREE SPIN 2990 AT 2.9 BPM 3090-3260 PSI AT 2.9 BPM,1.2-2.98K WOB, 70-90 FPH ROP -MW IN 8.58 PPG,MW OUT 8.54 PPG,ECD 10.0 PPG 02:30 - 03:30 1.00 EVAL N , DPRB PROD1 CONDUCT 150'WIPER WHILE DD INTERPRETS DIRECTIONAL PATH TO ENSURE GOOD DIRECTIONAL PATH. NOT OBTAINING BUILD RATE ACCORDING TO DIRECTIONAL PLAN;DROPPING ANGLE EVEN THOUGH BIT I INCLINATION IS AT 0°. -CONSULT WITH GEOLOGIST REGARDING FORMATION CONDITIONS. SAMPLES REVEAL 80%CHERT AND 20%SANDSTONE. PLAN IS TO DRILL AHEAD IN ATTEMPT TO GAIN BUILD AND FOR ONE MORE SURVEY. 03:30 - 04:30 1.00 DRILL- N DPRB PROD1 -RUN BACK DOWN TO BOTTOM. DRILL AHEAD FROM 9815'MD WITH LOWER PUMP RATES AND INCREASED WOB IN ORDER TO KICK ANGLE UP. FREE SPIN 2260 AT 2.25 BPM '-VERY FAST DRILLING WITH THE INCREASED WOB. DRILL TO 9860'MD TO OBTAIN SURVEY AND COMPARE TO PLANNED DIRECTIONAL PATH. ALTHOUGH ABLE TO OBTAIN SOME BUILD,CANNOT MEET BUILD REQUIREMENTS FOR TRAJECTORY PROJECTIONS. CURRENT BUILD WILL PLACE 'LANDING 10'ND BELOW PROJECTED DIRECTIONAL PLAN. DECIDE TO POH FOR BHA INSPECTION. -FLOW CHECK OFF BOTTOM,SIMULATE FLOW FOR KICK DRILL. CREW RESPONDS ACCORDING TO STANDING ORDERS. CONDUCT AAR,ONLY SUGGESTION FOR IMPROVEMENT IS TO CONDUCT COMPLEX DRILL NEXT TIME IN ORDER TO TRAIN FLOORHAND IN MANAGING ACCUMULATOR OPERATIONS. 04:30 - 06:40 I 2.17 • DRILL N DPRB PROD1 POH TO VINDOW. PULL INTO WINDOW AND CONDUCT FLOW CHECK. OPEN EDC,JET ACROSS WHIPSTOCK,CONTINUE TO POH AT MAX RATE. 06:40 - 07:20 0.87 DRILL N DPRB PROD1 PJSM TO LD BHA AND ADJUST THE MOTOR 07:20 - 07:30 0.17 DRILL N DPRB PROD1 FLOW CHECK WELL 07:30 - 08:00 0.50 DRILL N DPRB PROD1 GOOD NO FLOW • 08:00 - 09:15 1.25 DRILL N HMAN PROD1 BHA OOH,BIT ISA 1:1 MWD HAND CHECKED HIS TOOL AND FOUND THE ORIENTATION FOR THE DGS TO THE HOT IS WRONG AND HAS BEEN FOR RUNS 13,14&16 09:15 - 09:45 0.50 DRILL N HMAN PROD1 HOLD PJSM TO MU THE DRILLING BHA Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 31 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:OOAM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:45 - 10:00 0.25 DRILL N HMAN PROD1 MU THE DRILLING BHA PU THE INJECTOR AND MU TO THE BHA PT THE QTS 10:00 - 11:45 1.75 DRILL N HMAN PROD1 RIH 11:45 - 12:10 0.42 DRILL N HMAN PROD1 CLOSE THE EDC AND LOG TIE IN 12:10 - 12:30 0.33 DRILL N HMAN PROD1 CORRECT DEPTH-1',RIH TO CONTINUE DRILLING 12:30 - 12:40 0.17 DRILL N HMAN PROD1 OBTAIN SPR'S 12:40 - 13:35 0.92 DRILL N HMAN PROD1 'BACK ON BOTTOM DRILLING !FREE SPIN=2950 PSI AT 2.95 BPM RATE IN=2.93 BPM RATE OUT=2.91 BPM 'ROP=100 FPH WOB=3.15 K CIRC PSI= 3358 PSI MW IN=8.56 PPG MW OUT=8.53 PPG ECD =9.99 PPH IAP=258 PSI OAP=149 PSI PVT=293 BBLS 13:35 - 15:05 1.50 DRILL N HMAN PROD1 I COTINUE DRILLING AHEAD 'FREE SPIN=2950 PSI AT 2.95 BPM RATE IN=2.96 BPM RATE OUT=3.00 BPM ROP=112 FPH WOB=5.39 K CIRC PSI= 3607 PSI MW IN=8.58 PPG MW OUT=8.59 PPG ECD =10.14 PPH IAP=504 PSI OAP=360 PSI PVT=291 BBLS 15:05 - 15:35 0.50 DRILL N HMAN PROD1 COTINUE DRILLING AHEAD FREE SPIN=2950 PSI AT 2.95 BPM RATE IN=2.86 BPM RATE OUT=2.87 BPM ROP=123 FPH WOB=1.27 K CIRC PSI= 3010 PSI MW IN=8.59 PPG MW OUT=8.58 PPG ECD =10.04 PPH IAP=607 PSI OAP=525 PSI PVT=288 BBLS 15:35 - 16:00 0.42 DRILL N HMAN PROD1 DRILLED 150',PU TO CHECK PARAMETERS PARAMETERS LOOK GOOD,CONTINUE DRILLING 16:00 - 16:25 0.42 DRILL N HMAN PROD1 COTINUE DRILLING AHEAD FREE SPIN=2950 PSI AT 2.95 BPM RATE IN=2.96 BPM RATE OUT=2.96 BPM ROP=102 FPH WOB=1.44 K CIRC PSI= 3116 PSI MW IN=8.61 PPG MW OUT=8.59 PPG ECD =10.07 PPH IAP=688 PSI OAP=615 PSI PVT=286 BBLS 16:25 - 16:45 0.33 DRILL N HMAN PROD1 COTINUE DRILLING AHEAD FREE SPIN=2950 PSI AT 2.95 BPM RATE IN=2.94 BPM RATE OUT=2.94 BPM ROP=102 FPH WOB=2.25 K CIRC PSI= 3212 PSI MW IN=8.61 PPG MW OUT=8.59 PPG ECD =10.09 PPH IAP=703 PSI OAP=631 PSI PVT=284 BBLS 16:45 - 17:00 0.25 DRILL N HMAN PROD1 END NPT AND WE ARE LANDED AND PAST 10180' PU TO CIRC OH CLEAN BEFORE FLOW CHECKING THE WELL Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 32 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB 0-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:00 - 17:05 0.08 DRILL N HMAN PROD1 FLOW CHECK WELL 17:05 - 20:15 3.17 DRILL N HMAN PROD1 GOOD NO FLOW,POOH TO THE WINDOW. FLOW CHECK AT WINDOW,ALL GOOD. OPEN EDC,JET ACROSS WHIPSTOCK TRAY AND CONTINUE TO POH TO SURFACE. PJSM ON 'LAYING DOWN BHA. PULL TO SURFACE, FLOW CHECK WELL. 20:15 - 21:00 0.75 DRILL N HMAN PROD1 POP OFF WITH INJECTOR. BREAK OFF BHA, STAND INJECTOR BACK ON LEGS. BREAK 'DOWN AND LAY DOWN BHA. BIT GRADE: 1-2-BT WITH CHIPPED TEETH ON OUTER GAUGE ROW. MOBILIZE TOOLS OFF RIG FLOOR,CLEAR AND CLEAN RIG FLOOR. 21:00 - 22:00 1.00 BOPSUR P PROD1 LINE OUT EQUIPMENT FOR BOP TEST. CLOSE ALL MANUAL VALVES,INSTALL LINE TO MONITOR FOR PRESSURE. CONDUCT LEAK TIGHT TEST PER WELL PLAN IN PREPARATION FOR BOP INSPECTION AND TESTING. LEAK TIGHT TEST GOOD. MONITOR VOID BETWEEN SWAB VALVE AND SSV THROUGHOUT BOP INSPECTION AND •TESTING OPERATIONS. SIMOPS: -CONDUCT PJSM AND COMPLETE PERMITTING AND TOOL INVENTORY FOR WELDING ON MONKEY BOARD. WSL AND TOOLPUSHER REVIEW OF PERMITTING, SIGN OFF ON MAN-RIDER PERMIT. 22:00 - 00:00 2.00 BOPSUR P PROD1 PJSM ON INSPECTING BOP COMPONENTS. DRAIN STACK OF ALL FLUIDS TO OPEN DOORS. OPEN EACH SET OF RAM BODY DOORS AND INSPECT COMPONENTS. REPLACE DOOR SEALS AND BLADE SEAL. SIMOPS: -COMPLETE PERSONNEL INSPECTION OF HARNESSES,ITEMS GOING OVERHEAD FOR WORKERS GOING UP TO WORK AT HEIGHTS. BEGIN WELDING OPERATIONS ON MONKEY BOARD TO STRENGTHEN BOARD SUPPORT 6/1/2013 00:00 - 00:45 0.75 BOPSUR P PROD1 SIMOPS: -WELDING OPERATIONS ON MONKEY BOARD TO STRENGTHEN BOARD SUPPORT -COMPLETE WELDING OPERATIONS AT 0030 HRS. -GREASE CHOKE MANIFOLD,VALVES ON BOP STACK. FUNCTION VALVES TO ENSURE OPERABLE. COMPLETE GREASING VALVES WHILE WAITING ON TUBOSCOPE TO ARRIVE ON LOCATION FOR INSPECTION OF WELDS. -CONDUCT FIRE DRILL IN STABBING BOX AREA AFTER WELDING OPERATIONS. GOOD CREW RESPONSE WITH FIRE EXTINGUISHERS. CONDUCTAARAND DISCUSS NORDIC POLICY ON USE OF FIRE EXTINGUISHERS,SIZE OF FIRE TO EITHER ATTEMPT TO PUT OUT OR TO CALL EMERGENCY SERVICES. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 33 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4.282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UVV1: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 00:45 - 02:30 1.75 BOPSUR P PROD1 TUBOSCOPE ON LOCATION FOR INSPECTION. REMOVE CHECK VALVE ON KILL LINE IN PREPARATION FOR TESTING. FLUID PACK BOP STACK WITH WATER. -PJSM WITH TUBOSCOPE REP ON MANRIDER OPERATIONS FOR INSPECTION. WSL,TOOLPUSHER INSPECT MANRIDER FORM AND SIGN OFF ON OPERATION. SEND TUBOSCOPE REP UP FOR INSPECTION WHILE FLUID PACKING STACK. WELDS ARE ALL GOOD. 02:30 - 10:00 7.50 BOPSUR P PROD1 TEST BOP EQUIPMENT TO 250 PSI LOW AND 3500 PSI HIGH PER NORDIC TESTING PROCEDURE AND AOGCC TESTING REQUIREMENTS. FUNCTION TEST FROM BOTH DRILLERS CONSOLE AND CTD CONSOLE. TEST WITNESSED BY WSL ROB O'NEALAND TOURPUSHER ED EDGAR. STATE WITNESS OF TEST HAD BEEN WAIVED BY AOGCC REP BOB NOBLE AT NOON ON 5/30/2013. 10:00 - 10:15 0.25 BOPSUR P PROD1 BOP TEST COMPLETED HOLD PJSM TO PU THE INJECTOR TO REMOVE THE BHI CHECK VALVES TO TEST THE INNER REEL VALVE 10:15 - 11:15 1.00 BOPSUR P PROD1 PRESSURE TEST BHI CHECK VALVES 11:15 - 12:15 1.00 BOPSUR P PROD1 PT THE NIGHT CAP TO OPEN UP TO THE WELL GOOD PT,OPEN THE MASTER,SSV AND SWAB NO PRESSURE,OPEN CHOKE TO AND PUMP ACROSS THE TOP TO ENSURE THE HOLE IS FULL WELL TOOK 8 BBLS FLOW CHECK WELL 12:15 - 12:30 0.25 DRILL P PROD1 HOLD PJSM TO MU THE LATERAL BHA 12:30 - 13:10 0.67 DRILL P PROD1 MU THE BHA 13:10 - 13:25 0.25 DRILL P PROD1 PT THE QTS 13:25 - 15:00 1.58 DRILL P PROD1 RIH 15:00 - 15:20 0.33 DRILL P PROD1 CLOSE EDC AND LOG TIE IN 15:20 - 15:50 0.50 DRILL P PROD1 CORRECT DEPTH-2'AND RIH TO TD 15:50 - 16:00 0.17 DRILL P PROD1 OBTAIN SPR'S "'FIRE&SPILL DRILL AT THE AIR HEATER"' 16:00 - 16:15 0.25 DRILL P PROD1 BACK ON BOTTOM DRILLING AHEAD 16:15 - 17:20 1.08 DRILL P PROD1 COTINUEDRILLINGAHEAD FREE SPIN=2950 PSI AT 2.95 BPM RATE IN=3.01 BPM RATE OUT=2.97 BPM ROP=100FPH WOB=1.82K CIRC PSI= 3113 PSI MW IN=8.64 PPG MW OUT=8.68 PPG ECD =9.90 PPG IAP=278 PSI OAP=0 PSI PVT=307 BBLS Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 34 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor NORDIC CALISTA UWI: Active datum:Orig RKB 0-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) - (usft) 17:20 - 17:55 0.58 DRILL P PROD1 COTINUEDRILLINGAHEAD FREE SPIN=2950 PSI AT 2.95 BPM RATE IN=3.01 BPM RATE OUT=3.02 BPM ROP=100 FPH WOB=1.47 K CIRC PSI= 3032 PSI MW IN=8.64 PPG MW OUT=8.75 PPG ECD =9.90 PPG OUT MM DENSITY IS READING HIGH,MUD CHECK SHOWS 8.6 HEAVY PPG, GETTING ALOT OF SAND BACK IAP=406 PSI OAP=67 PSI PVT=302 BBLS : 17:55 - 18:30 0.58 DRILL P PROD1 PU TO CHECK PARAMETERS. OBTAIN SLOW PUMP RATES,RUN BACK TO BOTTOM. 18:30 - 21:00 2.50 DRILL P PROD1 DRILL AHEAD FROM 10,400'. FREE SPIN 2850 PSI AT 3.0 BPM RATE IN=3.0 BPM RATE OUT=2.95 BPM ROP=50-70 FPH WOB=.55-1.0 K CIRC PSI =2890-2950 PSI MW IN=8.62 PPG MW OUT=8.7 PPG ECD =9.96 PPG IAP=700 PSI OAP=500 PSI PVT=296 BBLS CONDUCT BHA WIPER TRIP,PICK UP OFF BOTTOM GOOD,NO ISSUES ON TRIP 21:00 - 22:30 1.50 DRILL P PROD1 DRILL AHEAD FROM 10,500'. FREE SPIN 2850 PSI AT 3.0 BPM RATE IN=3.0 BPM RATE OUT=2.95 BPM ROP=70-100 FPH WOB=.85-1.4 K CIRC PSI=2940-3100 PSI MW IN=8.63 PPG MW OUT=8.7 PPG ECD =9.96 PPG IAP=800 PSI OAP=600 PSI PVT=293 BBLS FLUID LOSS IS DUE TO CENTRIFUGE DISCHARGE AND LOSS OFF SHAKERS TO CONTROL HIGH SAND CONTENT 22:30 - 00:00 1.50 DRILL P PROD1 WIPER TRIP FROM 10,600'TO WINDOW. NO ISSUES RUNNING PAST BILLET OR INTO WINDOW. LOG TIE-IN WITH+3.5' CORRECTION. CONTINUE RUNNING TO BOTTOM. 6/2/2013 00:00 - 00:30 0.50 DRILL P PROD1 COMPLETE WIPER TRIP FROM WINDOW WITH NO ISSUES 00:30 - 02:45 2.25 DRILL P PROD1 DRILL AHEAD FROM 10,600'. FREE SPIN 2860 PSI AT 2.98 BPM. RATE IN=2.98 BPM RATE OUT=2.93 BPM ROP=100 FPH WOB=.9-2.0 K CIRC PSI= 3015-3200 PSI MW IN=8.66 PPG MW OUT=8.72 PPG ECD =9.96 PPG IAP=960 PSI OAP=780 PSI PVT=276 BBLS 02:45 - 03:00 0.25 DRILL P PROD1 WIPER TRIP WITH NO ISSUES. PICK UP CLEAN AND SLACK OFF CLEAN. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 35 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-o12VW-CDRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor.NORDIC CALISTA UWI: Active datum:Orig RKB 0-31 D-31A @82.93usft(above Mean Sea Level) _ Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 06:30 3.50 DRILL PROD1 DRILL AHEAD FROM 10,750'. FREE SPIN 2945 PSI AT 3.0 BPM. RATE IN=2.98 BPM RATE OUT=2.93 BPM ROP=50-90 FPH WOB=.9-2.0 K CIRC PSI =3015-3250 PSI• MW IN=8.67 PPG MW OUT=8.72 PPG ECD =9.96 PPG 'IAP=10 PSI OAP=900 PSI PVT=268 BBLS -CALLED IN BHCT TO CEMENTERS SO THAT THEY CAN BEGIN THEIR PILOT TEST AT 0600 HRS 06:30 - 07:15 0.75 DRILL P PROD1 LOOKS LIKE WE DRILLED INTO A SHALE STARTING AT 10850' CALL FOR TRUCKS TO SWAP MUD 07:15 - 07:45 0.50 DRILL P PROD1 DRILLED 150'PU TO CHECK PARAMETERS AND OBTAIN SPR'S 07:45 - 08:35 0.83 DRILL P PROD1 BACK ONBOTTOMDRILLING FREE SPIN 2945 PSI AT 3.0 BPM. RATE IN=2.96 BPM RATE OUT=2.95 BPM ROP=20 FPH WOB=4.35 K CIRC PSI= 3109 PSI MW IN=8.67 PPG MW OUT=8.75 PPG ECD =9.96 PPG IAP=1147 PSI OAP=961 PSI PVT=268 1 BBLS SLOW DRILLING IN CLAY 8935'TVD DROP ANGLE TO GET OUT OF SHALE 08:35 - 10:50 2.25 DRILL P PROD1 SLOW DRILLING IN 150+API CLAY/SHALE,A LOT CLAY BALLS COMING ACROSS SHAKER TURN TRUCKS AROUND TO SEND BACK TO THE MUD PLANT TO WEIGHT UP MUD FROM 8.6 TO 9.5 PPG 10:50 - 13:45 2.92 DRILL P PROD1 SLOW DRILLING IN CLAY TRYING TO DROP !DOWN SLOW AS TO NOT DIVE INTO THE WATER 8937'TVD STILL DROPPING DOWN 13:45 - 14:10 0.42 DRILL P PROD1 BACK INTO A SAND-8940'TVD FREE SPIN 2945 PSI AT 3.0 BPM. RATE IN=3.06 BPM RATE OUT=3.07 BPM I ROP=135 FPH WOB=2.55 K CIRC PSI= 3428 PSI MW IN=8.70 PPG MW OUT=8.76 PPG ECD =10.05 PPG IAP=1266 PSI OAP=896 PSI PVT=252 BBLS 14:10 - 15:35 1.42 DRILL P PROD1 DRILLED 450',WIPER TO THE WINDOW 15:35 - 16:10 0.58 DRILL P PROD1 AT THE WINDOW,OPEN THE EDC AND CIRC A BOTTOMS UP 16:10 - 16:30 0.33 DRILL P PROD1 BOTTOMS UP UNLOADING A LOT OF CLAY AND COARSE SHALE.CONTINUE TO CIRC UNTIL RETURNS CLEANS UP 16:30 - 17:40 1.17 DRILL P• PROD1 RETURNS HAVE CLEANED UP,CLOSE THE EDC AND LOG TIE IN Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 36 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date 6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:40 - 18:40 1.00 DRILL P PROD1 BACK ON BOTTOM DRILLING FREE SPIN 3065 PSI AT 3.0 BPM. RATE IN=2.95 BPM RATE OUT=2.95 BPM ROP=60 FPH WOB=2.88 K CIRC PSI= 3318 PSI MW IN=8.72 PPG MW OUT=8.78 PPG ECD =10.34 PPG IAP=1261 PSI OAP=891 PSI PVT=242 BBLS 18:40 - 22:00 3.33 DRILL P PROD1 CONTINUE DRILLING AHEAD FREE SPIN 3065 PSI AT 3.0 BPM. RATE IN=2.98 BPM RATE OUT=2.93 BPM ROP=75FPH WOB=2.19K CIRC PSI= 3450 PSI MW IN=8.73 PPG MW OUT=8.78 PPG ECD =10.44 PPG IAP=1287 PSI OAP=902 PSI TRUCKING ON LOCATION,SWAP TO 9.5 PPG MUD WHILE DRILLING AHEAD. 22:00 - 22:20 0.33 DRILL P PROD1 1 WOB AND MOTOR WORK DROPPED OFF. BHA WIPER TRIP OF 150'TO MOVE CUTTINGS,CLEAN ABOVE BHA. PICK UP GOOD. RUN BACK DOWN WITH NO ISSUES AND GOOD SLACK OFF WEIGHT. 22:20 - 00:00 1.67 DRILL P PROD1 DRILL AHEAD FROM 11,208'. FREE SPIN 3110 PSI AT 3.0 BPM. RATE IN=3.0 BPM RATE OUT=2.95 BPM ROP=42-70 FPH WOB=1.2-2.6 K CIRC PSI =3300-3450 PSI MW IN=9.5 PPG MW OUT=9.5 PPG ECD= 11.0 PPG IAP=1100 PSI OAP=770 PSI 6/3/2013 00:00 - 00:45 0.75 DRILL P PROD1 DRILL AHEAD FROM 11,272'. FREE SPIN 2860 PSI AT 2.9 BPM. RATE IN=2.8 BPM RATE OUT=2.79 BPM ROP=45 FPH WOB=1.7-2.2 K CIRC PSI= 3300-3380 PSI MW IN=9.5 PPG MW OUT=9.5 PPG ECD= 11.0 PPG IAP=1160 PSI OAP=800 PSI 00:45 - 01:00 0.25 DRILL P PROD1 150'BHA WIPER TRIP. PICKUP CLEAN. NO ISSUES UP OR BACK DOWN TO BOTTOM. 01:00 - 04:45 3.75 DRILL P PROD1 DRILL AHEAD FROM 11,300'. FREE SPIN 2890 PSI AT 2.8 BPM. RATE IN=2.8 BPM RATE OUT=2.79 BPM ROP=45 FPH WOB=1.7-2.2 K CIRC PSI= 3300-3380 PSI MW IN=9.5 PPG MW OUT=9.5 PPG ECD= 11.0 PPG IAP=1160 PSI OAP=800 PSI 04:45 - 06:50 2.08 DRILL P PROD1 WIPER TRIP TO WINDOW TO EVALUATE HOLE CONDITIONS. 10K OVERPULLAT 10,800', MAKE REAM PASS THROUGH. CONTINUE WITH WIPER TO WINDOW. 06:50 - 07:00 0.17 DRILL P PROD1 LOG TIE IN 07:00 - 07:45 0.75 DRILL P PROD1 CORRECT DEPTH+4'AND RIH Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 37 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:45 - 08:15 0.50 DRILL P PROD1 TAG WHILE RIH BUT POPPED THROUGH AT 10869',CONTINUE RIH TO TAG TD BYPASS OUT MM,WHP STARTING TO CLIMB FROM PACKING OFF GETTING A LOT OF SMALL CHUCKS OF CLAYSTONE ACROSS THE SHAKER,MIX UP A HI-VIS PILL TO PUMP ON BOTTOM THEN CHASE UP ABOVE THE WINDOWAND OPEN THE EDC TO PUMP IT OOH AT A HIGH RATE 08:15 - 08:30 0.25 DRILL P PROD1 TAG TD ON DEPTH AT 11370',START HI-VIS PILL DOWN THEN CHASE UP TO WINDOW TO CLEAN THE OH 08:30 - 10:00 1.50 DRILL P PROD1 POOH PUMPING HI-VIS PILL AT 11010'STARTING TO SEE SOME OVER PULLS PRETTY RATTY FROM 11,000'UP TO 10900' THEN STARTS TO CLEAN UP SOME,WOB SHOWING NEGATIVE WEIGHT UP TO-1.38K INDICATING THE BHA IS BEING PULLED THROUGH SOMETHING OVER PULLS CLEANING UP AT 10770' HI-VIS PILL UNLOADED A FAIR AMOUNT OF CLAYSTONE THEN LIGHTNED UP TO COURSE &FINE SAND.CONTINUE POOH TO WINDOW AND PUMP ANOTHER PILL TO CLEAN THE TUBING 10:00 - 10:40 0.67 DRILL i P PROD1 PILL AT THE BIT AND WE ARE AT THE WINDOW OPEN EDC AND PUMP AT MAX RATE TO CLEAN THE TUBING ONLINE WITH THE PUMPA T 3.6 BPM 5 BBLS INTO PUMPING THE OUT MM IS PLUGGED OFF,BYPASS THE MM UNTIL WE GET PAST BOTTOMS UP 10:40 - 11:00 0.33 DRILL P PROD1 THE LEAD OF THE HI-VIS PILL UNLOADED LARGE&MEDIUM CHUNKS OF CLAYSTONE AND CONTINUED WELL PAST THE 15 BBL PILL CALL DRLG SUPT AND DISCUSS OPTIONS TO CLEAN OH CALL FOR LOW VIS SWEEP MATERIAL 11:00 - 11:45 0.75 DRILL P PROD1 CLOSE THE EDC AND RIH OUT MM PLUGGED OFF AGAIN,BYPASS AND BLOW DOWN • 11:45 - 12:00 0.25 DRILL P PROD1 10750'REDUCE RATE WHILE PASSING THROUGH SHALE SECTION FROM 10,800 TO 11,000 10850'TAG AND IT IS RATTY ALL THE WAY TO 11000'STAKING 10-15K DOWN 12:00 - 12:45 0.75 DRILL P PROD1 TAG BOTTOM INCREASE RATE 35 BBLS AWAY THE OUT MM PLUGGED AGAIN 12:45 - 15:15 2.50 DRILL I P PROD1 ***KICK WHILE TRIPPING DRILL*** 15:15 - 17:50 2.58 DRILL P PROD1 START 9.5PPG LOW-VIS FOLLOWED BY 9.5PPG HI-VIS PILLS 17:50 - 18:20 0.50 DRILL P PROD1 LO/HI-VIS PILLS ARE CLEAN,PU TO 10700'AT 0.5 BPM TEHN RBIH TO ENSURE HOLE IS CLEAN WITH A 30°ROHS TOOLFACE PULLING HEAVY AT 10960&10949 BOTH WITH >-4K OVER PULLS PULLED TO 57K(20K OVER)AT 10870' • Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 30 of 38 Operation Summary Report Common Well Name:D-31 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/18/2013 End Date:6/4/2013 X3-012VW-C:DRILL(4,282,410.00) Project Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) , 18:20 - 19:00 0.67 DRILL P PROD1 PULLED VERY RATTY WITH OVER PULLS AT THE WAY UP TO 10700',TURN AROUND AND RIH TO SEE IF ITS CLEAN 10850'GETTING A LITTLE RATTY STACKED 5K 1 WOB BUT SMOOTHED OUT,LOOKS LIKE WE CAN GET OUR LINER TO BOTTOM CALL DRLG SUPT AND HE AGREES,RIH TO TD AND LOAD LINER PILL AND ADD BEADS. 19:00 - 00:00 5.00 DRILL P PROD1 LAY IN LINER PILL WITH BEADS WHILE POH WITH ASSEMBLY. NO SIGNIFICANT ISSUES WHILE POH OR ACROSS BILLET. PULL TO WINDOW. LO-VIS PILL AT BIT. -FLOW CHECK WELL,ALL GOOD. OPEN EDC,BRING PUMPS UP TO FULL RATE AND BEGIN FLUSHING ACROSS WHIPSTOCK TRAY WITH 25 BBL LO-VIS PILL. FOLLOW LO-VIS PILL WITH 20 BBL HI-VIS PILL. PAINT WHITE TD FLAG ON COIL. -NO NOTICEABLE CHANGE IN CUTTINGS RETURNS ACROSS SHAKER WITH RETURN OF SWEEP. CONTINUE PULLING UP HOLE AT 3.4 BPM. PULL TO SURFACE,JOG DOWN WHILE PUMPING,PULL BACK UP. FLOW CHECK AT SURFACE,ALL GOOD. -PJSM ON LAYING DOWN BHA -MW IN AND OUT 9.5 PPG 6/4/2013 00:00 - 00:30 0.50 DRILL P PROD1 PULL TO SURFACE,POP OFF AND STAND INJECTOR BACK. BREAK DOWN BHA. BIT GRADE:2-2-RO-N-X-I-WT-TD. T-TD. Printed 6/17/2013 11:06:02AM North America-ALASKA-BP Page 1 of 8 Operation Summary Report ` Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 X3-012VW-C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12.00:OOAM Rig Release:6/6/2013 Rig Contractor NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 6/4/2013 00:30 - 01:30 1.00 CASING P RUNPRD BREAK OFF ALL COILTRAK TOOLS,MAKE UP NOZZLE. STAB ON,PUMP AND CUT 226'OF SLACK OUT OF E-LINE. 01:30 - 03:30 2.00 CASING P RUNPRD BREAK OFF QUICK TEST SUB,INISTALL CUTTER. CUT 100'OF COIL. DRESS OFF, I INSTALL BAKER THROUGH TUBING COIL CONNECTOR. PRESSURE TEST TO 3750 PSI, PULL TEST TO 42K. STAB ON AND PRESSURE TEST THE QUICK TEST SUB TO 250 PSI LOW AND 3500 PSI HIGH. OPEN WELL TO CLOSED CHOKE,NO PRESSURE. OPEN CHOKE,NO FLOW. ALL GOOD. 03:30 - 04:30 1.00 CASING P RUNPRD POSITION REEL. LOAD 3/4"DRIFT BALL INTO REEL DROP. CIRCULATE DRIFT BALL AROUND INTO BULLNOSE SUB. BREAK OFF, RETRIEVE BALL. 04:30 - 05:15 0.75 CASING P RUNPRD STAND INJECTOR BACK PREP TO RUN LINER. PJSM ON RUNNING LINER. 05:15 - 06:30 1.25 CASING P RUNPRD 'MAKE UP LINER PER LINER RUNNING PROGRAM. MU SHOE TRACK WITH INDEXING GUIDE SHOE,FLOAT COLLAR,1 2-7/8"JOINT,FLOAT COLLAR,LATCH COLLAR, STAGE COLLAR,17 2-7/8"JOINTS. -CONDUCT KICK WHILE MAKING UP LIINER DRILL. CREW RESPONSE GOOD,PICKING UP SAFETY JOINT WITH FULL OPENING SAFETY VALVE AND STABBING ON PROPERLY. RUN IN HOLE,SPACE OUT, SIMULATE CLOSING RAMS,AND CLOSE FOSV. 06:30 - 06:45 0.25 CASING P RUNPRD CREWS CHANGED OUT,HOLD PJSM TO CONTINUE RUNNING LINER 06:45 - 07:00 0.25 CASING P RUNPRD WALK THROUGH PIPE TALLY TO ENSURE COUNT IS RIGHT 07:00 - 10:15 3.25 CASING P RUNPRD PIPE COUNT IS GOOD,CONTINUE RUNNING LINER 10:15 - 10:50 0.58 CASING P RUNPRD LINER RAN,RU HEAD PINTO CIRC WATER OUT OF LINER,CALLED CMT CREW FOR 3 HR HEADS UP 10:50 - 11:50 1.00 CASING P RUNPRD MU THE LINER RUNNING TOOL AND PH6 PIPE 11:50 - 12:05 0.25 CASING P RUNPRD LINER BHA MADE UP,PU THE INJECTOR AND MU TO THE LINER 12:05 - 12:15 0.17 CASING P RUNPRD PT THE QTS AND SET PUMP TRIPS TO 1500 PSI FOR RUNNING TOOL 12.15 - 13:30 1.25 CASING P RUNPRD RIH VNTH LINER BHA 13:30 - 13:35 0.08 CASING P RUNPRD STOP AT FLAG,CTMD=9062',CORRECT DEPTH-11'TO 9051' I EOP FLAG AT 6800'+2251(BHA LENGTH)= 9051' 13.35 - 14:05 0.50 CASING P RUNPRD W1 CHECK ABOVE THE WINDOW IS 40K,RIH WT=17.5K RUN LINER TO BOTTOM Printed 6/17/2013 1106:57AM North America-ALASKA-BP Page 2 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 1X3-012VW C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor.NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT I NPT Depth Phase Description of Operations (hr) (usft) 14:05 - 14:30 0.42 CASING P RUNPRD TAG AT 10770',PU AND ABLE TO RUN PAST TAG AT 10835',PU AND MADE IT PAST TAG AT 10885',PU AND MADE IT PAST TAG AT 11035',COME ONLINE WITH PUMP TO CLEAN UP BEHIND US FORA COUPLE BBLS, 1:1 RETURNS WENT PAST LOWER FLAG AT 11053'2 FT OFF DEPTH SHOULD HAVE BEEN AT 11051' TAG AT 11200',COME ONLINE WITH PUMP TO CLEAN UP BEHIND US AGING FOR A COUPLE BBLS,RETURNS ARE 1:1 14:30 - 15:00 0.50 CASING P RUNPRD TAG VERY HARD AT 11363',PU AND RETAG HARD AT THE SAME DEPTH. PU WT=62-64K ONLINE WITH PUMP TO TRY AND ESTABLISH 2.0 BPM AS PER THE WELL PLAN UNLOAD PITS TO PREP FOR CMT JOB 1:1 RETURNS AT 2.0 BPM AT 2183 PSI,PUMP 25 BBLS TO FLUSH THE OH BEFORE DROPPING 5/8"BALL TO RELEASE FROM LINER 15:00 - 15:10 0.17 CASING P RUNPRD PU TO BALL DROP POSITION AND LOAD 5/8" -' BALL 15:10 - 15:40 0.50 CASING P RUNPRD BALL LAUNCHED,CONFIRMED THE BALL IS ROLLING,SET DOWN TO-14K BALL OVER THE GOOSENECK AT 21.5 BBLS, CALC VOLUME=20.7 BBLS REDUCE RATE AT 35 BBLS TO LAND BALL ON SEAT BALL ON SEAT AT 39.9 BBLS,SHEARED AT 4500 PSI,PU TO SEE IF WE ARE RELEASED 15:40 - 15:55 0.25 CEMT ,P RUNPRD WE ARE RELEASED FROM THE LINER,LINE UP TO BACK FEED KCL FROM PILL PIT TO THE CMT PUMPER 15:55 - 17:35 1.67 CEMT P RUNPRD ONLINE WITH LUBED 9.5 PPG BRINE PT CMT LINE TO 250 LOW,GOOD PT PT LINE 6000 PSI SET PUMP TRIP AT 4000 PSI TO TEST TRIP PUMP SHUT DOWN AT 4000,RESET TRIP TO 6500 AND TEST LINE TO 6000 PSI GOOD TEST ON CMT LINE,BLOW DOWN LINE WITH AIR 17:35 - 18:30 0.92 CEMT P RUNPRD CLEAN BRINE BACK TO SURFACE,PREP FOR PJSM TO PUMP CMT. CONDUCT CREW CHANGEOUT,WALK LINES,CONDUCT SPILL CHAMPION CHECKS. 18:30 - 19:00 0.50 CEMT P RUNPRD MUSTER TRUCK PUSHER,SLB CEMENT CREW,SITE CONTROL SPECIALIST,RIG CREW TOGETHER. DISCUSS CEMENTING PROCESS,DANGERS OF PRESSURE,WHO THE TASK LEADERS ARE FOR EACH AREA OF THE OPERATION. 19:00 - 19:45 0.75 CEMT P RUNPRD BATCH UP 25 BBLS 15.8 PPG CEMENT. MAKE ONE MORE ROUND OF CHECKING LINES. Printed 6/17/2013 11:06:57AM North America-ALASKA-BP Page 3 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 X3-012VW-C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:45 - 21:30 1.75 CEMT P RUNPRD CEMENT READY FOR PUMPING. CEMENTERS LINED UP WITH 5 BBLS KCL AHEAD. RECORD RIG PUMP CIRCULATING PRESSURES. 340 PSI AT 1.5 BPM WITH LUBED BRINE. CEMENT AT DENSITY AT 1945 HRS. LINE UP, BEGIN PUMPING CEMENT. SAMPLE SENT OFF TO LAB. -PUMP 21.3 BBLS OF 15.8 PPG CEMENT. INITIAL CIRC PRESSURE AT 1400 PSI AT 2.0 BPM. FINAL CIRC PRESSURE 3150 PSI AT 2.2 BPM. -SWAP OVER TO RIG PUMPS AND DISPLACE WITH 8.5 PPG CONTAMINATION FLUID (POWERVIS). INITIAL DISPLACEMENT 2050 PSI AT 1.8 BPM,FINAL DISPLACEMENT 2.0 BPM WITH PRESSURE DROPPING FROM 2110 PSI TO 1060 PSI. -SLOW PUMPS AS CEMENT APPROACHES LINER WIPER PLUG AND ENTERS INTO LINER,SLOWLY BRING RATE BACK UP: 280 PSI AT.7 BPM,INCREASE TO 1000 PSI AT 1.8 BPM. -AS CEMENT APPROACHES SHOE, PRESSURE INCREASES TO 1680 PSI AT 1.7 BPM,FINAL CIRCULATING PRESSURE OF 1800 PSI AT 1.65 BPM. -SHUT DOWN WITH 2 BBLS CEMENT ABOVE LINER WIPER PLUG -PICK UP TO BREAKOVER PLUS 13 FEET, SET BACK DOWN TO 5K COMPRESSION AND BRING ON PUMPS TO SEAT PEE WEE DART INTO LINER WIPER PLUG -PICK UP TO BREAKOVER AGAIN PLUS 2FEET UNTIL PRESSURE DROP,SIDE EXHAUST 2 BBLS CEMENT AND 3 BBLS CONTAMINATION FLUID -SET BACK DOWN,BRING UP PUMPS AND SHEAR LINER WIPER PLUG AT 1.5 BBLS,4280 PSI. CONTINUE WITH DISPLACING LINER WIPER PLUG AT 1.1 BPM,1875 PSI. -LAND PLUG ON DISPLACEMENT SCHEDULE AT 14.9 BBLS WITH 2400 PSI,BRING PRESSURE UP TO 3000 PSI TO ENSURE PLUG IS SEATED -CHECK FLOATS,EVERYTHING GOOD;CIPAT 2125 HRS -PRESSURE UP TO 1200 PSI AND SLOWLY RELEASE FROM LINER DEPLOYMENT SLEEVE UNTIL PRESSURE DROP -BEGIN DISPLACEMENT WITH 5 BBLS OF CONTAMINATION FLUID ABOVE DEPLOYMENT SLEEVE 21:30 - 23:30 2.00 CEMT P RUNPRD POH WHILE CONTAMINATING WELLBORE WITH 8.5 PPG POWERVIS. PULL TO 200', CONDUCT FLOW CHECK AND PJSM FOR LAYING DOWN CEMENTING BHA. 23:30 - 00:00 0.50 CEMT P RUNPRD POP OFF WITH INJECTOR,STAND ASIDE. LD BHA. 6/5/2013 00:00 - 00:20 0.33 CEMT P RUNPRD COMPLETE BREAKING DOWN BHA. 5/8"BALL RETRIEVED. ALL EQUIPMENT IN GOOD SHAPE. Printed 6/17/2013 11:06:57AM North America-ALASKA-BP Page 4 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 X3-012VW-C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor.NORDIC CALISTA UWI: Active datum:Ong RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth 1 Phase Description of Operations (hr) (usft) -i 00:20 - 01:45 1.42 EVAL P RUNPRD CLEAR AND CLEAN RIG FLOOR OF RUNNING i EQUIPMENT. OFFLOAD INTEQ TOOLS, MOBILIZE NEW INTEQ AND SCHLUMBERGER LOGGING TOOLS TO RIG FLOOR. PREPARE FOR RUNNING CLEANOUT AND LOGGING RUN. 01:45 - 03:00 1.25 EVAL P I RUNPRD PJSM ON CHANGING OUT COIL CONNECTOR AND MAKING UP CLEANOUT AND LOGGING BHA. CHANGE OUT CONNECTORS,PULL TEST TO 37K AND PRESSURE TEST TO 3500 PSI. SAFETY JOINT WITH CROSSOVERS AND FULL OPENING SAFETY VALVE MADE UP. 03:00 - 05:15 2.25 EVAL P RUNPRD PJSM WITH LOGGER ON MAKING UP LOGGING BHA. MU COMBINED 2.30" CLEANOUT MILL AND LOGGING BHA:2.30" CLEANOUT MILL,STRAIGHT MUD MOTOR,2 BUFFER JOINTS OF 1-1/4"CSH,LOGGING CARRIER,CIRC SUB,HYDRAULIC DISCONNECT,1-1/4"CSH WORK STRING, HYDRAULIC DISCONNECT,DUAL FLAPPER BACK PRESSURE VALVE ASSEMBLY,2 JOINTS 2-1/16"CSH TUBING,AND THE THRU-TUBING SOLUTIONS SWIVEL. -CONDUCT KICK WHILE MAKING UP BHA DRILL WHILE MAKING UP 1-1/4"CSH WORK STRING. GOOD CREW RESPONSE TIME. PICKED UP AND STABBED ON SAFETY JOINT, RAN IN HOLE TO SPACE OUT,SIMULATE CLOSING RAMS,CLOSE FOSV. CONDUCT AAR ON RIG FLOOR. I-CONTINUE WITH MAKING UP ASSEMBLY. COMPLETE BHA MAKE UP,STAB ON, PRESSURE TEST QUICK TEST SUB. 05:15 - 07:00 1.75 EVAL P RUNPRD RIH WITH CLEANOUT AND LOGGING ASSEMBLY. CORRELATE DATA WITH LOGGER AT 900'AND 1400'. ALL GOOD. CONTINUE WITH RIH. 07:00 - 07:45 0.75 EVAL P RUNPRD LOG DOWN AT 60 FPM TO PBTD. CIRCULATING AT 1.5-BPM. SEND CEMENT CONTAMINATED RETURNS TO CUTTINGS BOX. TAG UNCORRECTED PBTDAT 11,331'. 07:45 - 08:40 0.92 EVAL P RUNPRD PUMP 15-BELS 9.5-PPG PERF PILL&CHASE WITH 8.5-PPG KCL. 08:40 - 10:30 1.83 EVAL P RUNPRD WITH PILL EXITING MILL,RETAG UNCORRECTED PBTDAT 11,331'AND LOG UP AT 30-FPM TO 8,600'. LAY IN PERF PILL WHILE LOGGING UP. PAINT EOP FLAG AT 7740'EOP(WHITE). 10:30 - 11:20 0.83 EVAL P RUNPRD RIH TO JUST ABOVE LINER TOP AND PUMP 3/8"BALL TO OPEN CIRC SUB. BALL LANDS AT 52-BBLS AWAY. PRESSURE UP AND SEE CIRC SUB SHEAR AT 2800-PSI. FLOW CHECK WELL-NO FLOW. 11:20 - 13:30 2.17 EVAL P + RUNPRD POH,DISPLACING WELL TO CLEAN 8.5-PPG KCL. MAKE 200'JOG FROM SURFACE. FLOW CHECK WELL-NO FLOW.. Printed 6/17/2013 11:06:57AM North America-ALASKA-BP Page 5 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 X3-012VW-C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA I UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:30 14:00 0.50 EVAL P RUNPRD HOLD PJSM ON LD CLEANOUT/LOGGING BHA &STAND BACK 1-1/4"CSH. DISCUSS POSITIONS OF PEOPLE,IMPORTANCE OF GOOD COMMUNICATION,WORKING IN THE DERRICK AND HANDLING 1-1/4"CSH. FLAG OFF CELLAR TO RESTRICT ACCESS. _ 14'00 - 15:00 1.00 EVAL P RUNPRD UNSTAB INJECTOR&SET BACK OVER CIRC HOLE. LD 2-JTS OF 2-1/16"CSH TO PIPE SHED. BREAK OUT UPPER BHA SECTION INCLUDING SWIVEL,XO,DBPV,5/8" DISCONNECT&XO TO CSH. STAND BACK 1-1/4"CSH IN DERRICK. HOLD KWT DRILL WITH ENTIRE RIG CREW. CREW RESPONDED EFFICIENTLY AND SAFELY. HOLD AAR&REVIEW EACH JOB STEP WITH ROUSTABOUT WHO WAS WORKING THE RIG FLOOR. HE HAD A CLEAR UNDERSTANDING OF HIS RESPONSIBILITIES. ALSO DISCUSSED HAVING MOTORMAN WORKING IN DERRICK REQUIRING FLOORHAND TO STEP UP TO FULFILL THE MOTORMAN'S RESPONSIBILITIES. GOOD DRILL. CONTINUE TO STAND BACK 1-1/4"CSH IN DERRICK. 15:00 - 16:30 1.50 EVAL P RUNPRD WITH 5-STDS REMAINING ABOVE LOGGING TOOL,RESTRICT ACCESS TO RIG FLOOR& CELLAR. MAKE ANNOUNCEMENTS. FINISH STANDING BACK 1-1/4"CSH IN DERRICK. • CLEAR RIG FLOOR&REMOVE SOURCE FROM LOGGING TOOL. FINISH LD CLEANOUT/LOGGING BHA. SEND OUT LOGGING TOOLS FOR DOWNLOAD. FIND"GUTS"OF PEEWEE DART LODGED IN MILL. 16:30 - 17:00 0.50 PERFOB P OTHCMP LOAD PERF GUNS IN PIPE SHED&TCP REPS LAYOUT. SLB MEMORY LOGGER CONFIRMS GOOD DATA. 17:00 - 17:30 0.50 RUNCOM P RUNCMP MU NIGHT CAP&RU TO TEST LINER LAP. CHART RECORDER IS NOT READING PROPERLY-CHARTING A 300-PSI WHEN PRESSURE ARE AT 400+PSI. REQUEST NEW CHART RECORDER FROM TOOL SERVICES. 17:30 - 18:00 0.50 RUNCOM N SFAL RUNCMP WAIT FOR CHART RECORDER TO BE CHANGED OUT. CIRCULATE COIL WHILE WAITING. 18:00 - 18:45 0.75 RUNCOM P RUNCMP TEST LINER LAP TO 2400 PSI. BROUGHT PRESSURE UP SLOWLY,BROKE OVER AT 2060 PSI. CONTINUED PUMPING IN ATTEMPT TO BRING IT UP TO TEST PRESSURE BUT CLEARLY BROKE OVER. STOP TEST. 18:45 - 19:30 0.75 PERFOB P OTHCMP CLEAR AND CLEAN RIG FLOOR OF TEST EQUIPMENT. MOBILIZE PERFORATION ASSEMBLY AND TOOLS TO RIG FLOOR. PJSM ON MAKING UP ASSEMBLY. Printed 6/17/2013 11:06:57AM North America-ALASKA-BP Page 6 of 6 Operation Summary Report Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 X3-012VW-C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM 1Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:30 - 20:30 1.00 PERFOB P OTHCMP MAKE UP PERFORATION BHA. -CONDUCT KICK WHILE MAKING UP BHA DRILL WITH SCHLUMBERGER AND NORDIC CREWS ON FLOOR. GOOD KICK RESPONSE WITH SAFETY JOINT MAKE UP AND RUN IN HOLE. SPACE OUT,SIMULATE CLOSING RAMS,CLOSE FOSV,SIMULATE HCR. CALL ALL GOOD,CONDUCT MR ON RIG FLOOR. -COMPLETE MAKING UP BHA: 212'OF PERF GUNS WITH BLANKS,DISCONNECT,1-1/4" CSH WORK STRING,DISCONNET,DUAL FLAPPER BACK PRESSURE VALVES,2 JOINTS CSH TUBING,TT SOLUTIONS SWIVEL. MAKE UP TO INJECTOR,STAB ON WITH INJECTOR,PRESSURE TEST QUICK TEST SUB. 20:30 - 00:00 3.50 PERFOB P OTHCMP RIH WITH PERFORATION ASSEMBLY. CORRELATE FLAG AT WINDOW WITH MCNL LOG. CORRECT TO FLAG+3'. RECORD UP WEIGHT AT 40K BEFORE ENTERING DEPLOYMENT SLEEVE. CONTINUE RIH WITH ASSEMBLY. 6/6/2013 00:00 - 00:15 0.25 PERFOB P . OTHCMP RIH WITH PERFORATION ASSEMBLY. SLOW AT 11,300'. LIGHTLY TAG AT 11,333'COIL TUBING DEPTH. PICK UP,GO BACK DOWN AND RE-TAG AT 11,333'. PICK UP TO NEUTRAL WEIGHT,CORRECT DEPTH TO _ 11,336.9 PER MCNL CORRECTION. 00:15 - 01:30 1.25 PERFOB P OTHCMP BEGIN E-FIRE PERFORATION PROCESS WITH 'PUMPS. SLOWLY PICKUP AND FIRE GUNS ON DEPTH AT 11,330'. PICKUP,CLOSE IN CHOKE,BEGIN HOLDING 170-220 PSI BACK PRESSURE IMMEDIATELY AFTER CONFIRMING FIRING DETECTION. POH TO ABOVE DEPLOYMENT SLEEVE MAINTAINING RETURNS AND BACK PRESSURE. 01:30 - 02:00 0.50 PERFOB P OTHCMP !OPEN CHOKE,CONDUCT 30 MINUTE FLOW CHECK ALL GOOD. 02:00 - 03:45 1.75 PERFOB P OTHCMP POH WITH PERFORATION BHA MAINTAINING - POSITIVE RETURNS. FLOW CHECK AT SURFACE. PJSM ON LAYING DOWN PERF GUNS. 03:45 - 06:00 2.25 PERFOB P OTHCMP LAY DOWN UPPER BHA. RIH WITH REMAINING 1-1/4"CSH WORK STRING OUT OF DERRICK MAKE UP HEAD PIN, CIRCULATE FRESH WATER DOWN WORK STRING TO RINSE BEFORE STANDING BACK STAND BACK CSH WORK STRING. CLEAR FLOOR,PERF CREW ON LOCATION TO LAY DOWN PERF GUNS. LD PERF GUNS,ALL SHOTS FIRED. MOBILIZE GUNS AND EQUIPMENT OFF OF RIG. 06:00 - 07:00 1.00 WHSUR P POST MU FREEZE PROTECT NOZZLE BHA WITH DBPV. STAB ON WELL&TEST QTS TO 250-PSI/3500-PSI FOR 5-MINUTES PER TEST -GOOD TESTS. 'RIH WITH FREEZE PROTECT NOZZLE TO 2500'. CIRCULATE AT.5-BPM/85-PSI WHILE RIH. Printed 6/17/2013 11:06:57AM North America-ALASKA-BP Page 7 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 X3-012VW-C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Orig RKB D-31 D-31A @82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:00 08:30 1.50 WHSUR N WAIT POST LRS HEATING DIESEL TO 80-DEG. SEND ONE LRS CREW MEMBER TO SHOP TO GETTING FITTINGS NEEDED TO XO FROM TRUCK !HOSE TO RIG PUMP INLET. SPOT N2 UNIT AT CEMENT LINE&RU HARDLINE WITH RESTRAINTS. 08:30 - 09:15 0.75 WHSUR P POST TIE IN LRS TO MP#2&PUMP 50-BBLS 80-DEG DIESEL INTO COIL. CHASE DIESEL WITH CLEAN 8.5-PPG KCL ,FROM PITS. 09:15 - 10:15 1.00 WHSUR P POST :POH,LAYING IN DIESEL FREEZE PROTECTION AT 1.5-BPM/550-PSI. FLOW CHECK-NO FLOW. UNSTAB INJECTOR,BREAK OUT BHA&SET INJECTOR BACK OVER CIRC HOLE. N2 UNIT COOLING DOWN. "0955-HRS-COMPLETE ONLINE 24-HR NOTICE FORM FOR AOGCC WITNESS OF BOPE TEST ON E-16" 10:15 - 10:30 0.25 WHSUR P POST GREASE CREW SERVICE TREE VALVES. DSM CREW T-BAR IN BPV. 10:30 - 11:15 0.75 WHSUR P POST CLOSE MASTER,SSV&SWAB VALVE. PERFORM DUAL BARRIER LEAK TIGHT ISOLATION TESTS. GOOD TEST. USE OA SENSOR TO MONITOR SSV X SWAB VALVE VOID. SIMOPS-PRESSURE TEST N2 TREATING LINE TO 250-PSI/3500-PSI PER TEMPORARY PIPEWORK CRITERIA-GOOD PRESSURE TESTS. TEST TRIPS TO 3500-PSI DURING PRESSURE TEST-GOOD TEST. AFTER PRESSURE TESTING,RESET TRIPS TO 3200-PSI AND CONFIRM TRIPS FUNCTIONAL. LEAVE 500-PSI ON TREATING LINE IN PREP FOR BLOW DOWN. "1112-HRS:RECEIVE EMAIL FROM AOGCC REP JEFF JONES WAIVING STATE'S RIGHT TO WITNESS BOPE TEST ON E-16. 11:15 - 11:45 0.50 WHSUR P POST HOLD PJSM ON BLOWING DOWN REEL WITH N2. DISCUSS OVERPRESSURE PROTECTION,IMPORTANCE OF GOOD COMMUNICATION,IDENTIFY LOWEST PRESSURE RATED COMPONENT IS TREE AT 5000-PSI(MICROMOTIONS ARE BYPASSED)- SO TRIP SETTING OF 3200-PSI ADEQUATELY PROTECTS OPERATION,IDENTIFY TASK LEADERS&ASSIGN CREW MEMBERS TO POSITIONS,RESTRICT ACCESS TO RIG& TIGER TANK DURING N2 BLOWDOWN, REVIEW NEED TO KEEP PRESSURE DOWNSTREAM OF CHOKE AT LESS THAN 150-PSI. 11:45 - 12:45 1.00 WHSUR P POST BLOW DOWN REEL WITH N2. MAX PRESSURE SEEN=1800-PSI. NORDIC DRILLER MAINTAIN LESS THAN 150-PSI DOWNSTREAM OF CHOKE. ALLOW ALL PRESSURE TO BLEED TO 0-PSI. 12:45 - 13:00 0.25 WHSUR P POST UNSTAB INJECTOR&CUT OFF CTC. DRESS COIL&INSTALL GRAPPLE. Printed 6/17/2013 11:06:57AM North America-ALASKA-BP Page 8 of 8 Operation Summary Report Common Well Name:D-31 AFE No Event Type:COM-ONSHORE(CON) Start Date:6/4/2013 End Date:6/6/2013 X3-012VW-C:DRILL(1,729,734.00) Project:Prudhoe Bay Site:PB D Pad Rig Name/No.:NORDIC 1 Spud Date/Time:4/21/1996 12:00:00AM Rig Release:6/6/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:Ong RKB D-31 D-31A©82.93usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:00 - 15:00 2.00 WHSUR P POST HOLD PJSM ON PULLING COIL ACROSS ROOF &SECURING FOR SHIPMENT. ASSIGN PEOPLE TO POSITIONS,IDENTIFY EXCLUSION ZONES,REVIEW GOOD COMMUNICATION PRACTICES&DISCUSS JOB STEPS. PULL TEST GRAPPLE-GOOD TEST. PULL COIL ACROSS&SECURE TO SHIPPING BAR. CUT OFF COIL TAIL. POSITION REEL FOR REMOVAL OF HARDLINE FROM INSIDE REEL. SET INJECTOR BACK OVER CIRC HOLE ON LEGS. " 15:00 - 15:30 0.50 BOPSUR P POST VAC OUT BOR.STACK&PREP FOR BOPE RAM INSPECTION. BLEED DOWN&LO/TO ACCUMULATOR. NORDIC ELECTRICIAN LOCKOUT SCR FOR HAYDEN ELECTRICIAN FOR PREVENTATIVE MAINTENANCE INSPECTION OF POWER PACK TRACTION MOTOR. CTS TEAM REMOVING INNER REEL IRON FROM REEL IN PREPARATION FOR SHIPMENT. 15:30 - 17:30 2.00 WHSIJR P POST HOLD PJSM ON INSPECTING BOPE. DISCUSS EXCULSION ZONE IN CELLAR,WORKING AT HEIGHTS,TETHERED TOOLS,AND REVIEW PROCEDURE. 2 BARRIERS FOR OPEN BOPE DOORS ARE 1) LEAK TIGHT TESTED SSV,2)LEAK TIGHT TESTED SWAB VALVE. MONITORING VOID BETWEEN SSV&SWAB WITHOUT ANY PRESSURE BUILD UP SEEN. OPEN BOPE DOORS&INSPECT ALL RAMS. CHANGE OUT DOOR SEALS,BLADE SEALS PER PROCEDURE. CHANGE OUT PACKER ELEMENTS AND TOP SEALS ON VBRS AND ON UPPER 2-3/8"COMBIS. CLOSE BOP DOORS. 17:30 - 18:00 0.50 BOPSUR P POST !HOLD PJSM ON BEGINNING ND BOP STACK HIGHLIGHT EXCULSION ZONE IN CELLAR, IDENTIFY ALL TETHERED TOOLS TO BE USED,AND REVIEW ORDER OF OPERATIONS. REMOVE HOT TUB FROM RIG FLOOR. 18:00 - 18:30 0.50 BOPSUR P POST CREW CHANGE OUT. CONDUCT WALKAROUNDS. PJSM ON ND BOP,DISCUSS WORKING AT HEIGHTS,TETHERED TOOLS, FOLLOWING PROCEDURE. - 18:30 - 21:30 3.00 BOPSUR P POST NIPPLE DOWN BOP 21:30 - 22:30 1.00 WHSUR P POST INSTALL AND PRESSURE TEST TREE CAP. GOOD TEST. PUMP METHANOL TO FLUID PACK TREE. 22:30 - 00:00 1.50 RIGD P POST RIG DOWN TREE VALVE GUARDS,SECURE LINES FROM CELLAR. RIG RELEASE AT MIDNIGHT. Printed 6/17/2013 11:06:57AM D-31 B, Well History (Post Rig Sidetrack) Date Summary 06/14/13 T/I/O = BPV/100/0. Conducted PJSM and verified safe-out with operator prior to start of job. Barriers= SSV, BPV tubing side; and WV,Lat.valve, production side. Start barriers list. Performed independent LTT on SSV and BPV prior to removal of tree cap(passed). Removed Untapped companion flange and installed tapped flange and jewelry.Torqued to API specs (1-1/4" L7M 726 ft. lbs.).Torqued all tree flanges to API specs (see log for details). RU lubricator with 1-1'ext. and 4"CIW pulling tool. Pt'd lubricator to 300 psi and 3500 psi. independently for 5 min. using SV as barrier(Passed). Pulled 4" CIW H-BPV# 142 tagging at 114". SI SSV and SV and rigged down. Rigged up lubricator with 4"CIW TWC# 258. Pt'd lubricator(same as above, passed). Set TWC tagging at 108". Performed LTT on TWC (passed). SI SSV and RU CIW pulling tool. Opened SSV and Pt'd lubricator and Tree to 300 psi. and 5000 psi. independently for 5 min. using TWC as barrier(passed). Pulled TWC tagging at 108". SI SSV, SV. RDMO. installed tree cap. 06/19/13 DRIFT TO DEP. SLEEVE @ 9292'SLM (9318' MD). RIH W/2-7/8" GR, DPU,45 KB PACKER. 06/20/13 SET 45 KB PACKER (oal = 17.79') @ 9300' SLM (FISHING NECK @ 9284' SLM). SET LTTP @ 9277' SLM, LRS PERFORM 4 FAILING MIT-T. DISCOVER WING IS LEAKING BY, CLOSE GROVE VALVE& GREASE CREW SERVICE WING. GAIN PASSING MIT-T TO 2000psi (see LRS log) PULL BK-DGLV FROM ST#3 5554'SLM/5559' MD, PULL BK-DGLV FROM ST#4 3423'SLM/3433' MD. SET BK-LGLV(1500tro, 16/64") IN ST#43423' SLM/3433' MD, SET BK-OGLV(20/64") IN ST#3 5554' SLM/5559'MD. PULL LTTP FROM 9277'SLM. Page 1 of 1 NMI BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB D Pad D-31 - Slot 31 D-31 BPB1 Survey: MWD Survey Report - Geographic 12 June, 2013 0 by Mill BAKER HUD's Survey Report-Geographic (4)by INTEQ ' Company: North America-ALASKA-BP Local Co-ordinate Reference: Well D-31-Slot 31 Project: Prudhoe Bay TVD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Site: PB D Pad MD Reference: Orig RKB D-31 D-31A@ 82.93usft(Orig RKB D-31 D-3 Well: D-31 North Reference: True Wellbore: D-31BPB1 Survey Calculation Method: Minimum Curvature Design: D-31BPB1 Database: EDM R5K-Alaska PROD-ANCP1 Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB D Pad,TR-11-13 Site Position: Northing: 5,955,590.34 usft Latitude: 70°17'8.492 N From: Map Easting: 652,165.06 usft Longitude: 148°46'6.32 W Position Uncertainty: 0.00 usft Slot Radius: 0.000 in Grid Convergence: 1.16° Well D-31 API No. 500292267200 Well Position +N/-S 0.00 usft Northing: 5,957,666.89 usft Latitude: 70°17'28.520 N +E/-W 0.00 usft Easting: 654,121.44 usft Longitude: 148°45 8.09 W Position Uncertainty 0.00 usft Wellhead Elevation: usft Ground Level: 0.00 usft Wellbore D-31BPB1 API no. 500292267270 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2012 5/24/2013 20.38 81.02 57.622 Design D-31BPB1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 9,379.54 Vertical Section: Depth From(TVD) +N/-S +El-W Direction (usft) (usft) (usft) (°) 37.63 0.00 0.00 273.61 Survey Program Date: 6/11/2013 From To (usft) (usft) Survey(Wellbore) Tool Name Description 219.87 3,572.91 1 :MWD-Standard(D-31) MWD MWD-Standard 3,656.00 9,379.54 MWD(D-31A) MWD MWD-Standard 9,398.00 10,180.00 MWD(D-31BPB1) MWD MWD-Standard 6/12/2013 1.41:53PM Page 2 COMPASS 5000.1 Build 61 HIM BAKER HUGHES Survey Report-Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well D-31-Slot 31 Project: Prudhoe Bay TVD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Site: PB D Pad MD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Well: D-31 North Reference: True Wellbore: D-31 BPB1 Survey Calculation Method: Minimum Curvature Design: D-31 BPB1 Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 9,379.54 57.06 27.22 8,914.00 -334.63 -1,189.11 5,957,307.98 652,939.52 70°17'25.228 N 148°45 42.74 W TIP 9,398.00 57.50 26.65 8,923.98 -320.78 -1,182.08 5,957,321.97 652,946.27 70°17'25.364 N 148°45 42.53 W KOP 9,420.52 56.15 22.68 8,936.31 -303.66 -1,174.21 5,957,339.25 652,953.78 70°17'25.533 N 148°45 42.31 W 9,450.22 57.84 17.51 8,952.49 -280.28 -1,165.67 5,957,362.80 652,961.84 70°17 25.763 N 148°45 42.06 W 9,480.44 59.96 12.35 8,968.11 -255.29 -1,159.02 5,957,387.92 652,967.98 70°17 26.009 N 148°45 41.86 W 9,511.72 60.84 7.12 8,983.57 -228.49 -1,154.43 5,957,414.80 652,972.02 70°17 26.272 N 148°45'41.73 W 9,540.63 65.96 358.49 8,996.53 -202.71 -1,153.21 5,957,440.59 652,972.71 70°17'26.526 N 148°45'41.69 W 9,571.38 70.03 351.37 9,008.06 -174.35 -1,155.75 5,957,468.90 652,969.59 70°17'26.805 N 148°45 41.77 W 9,600.45 73.30 345.17 9,017.21 -147.35 -1,161.37 5,957,495.77 652,963.41 70°17'27.070 N 148°45 41.93 W 9,630.68 75.69 338.07 9,025.30 -119.73 -1,170.56 5,957,523.20 652,953.66 70°17'27.342 N 148°45 42.20 W 9,660.69 78.35 332.15 9,032.05 -93.23 -1,182.87 5,957,549.44 652,940.81 70°17'27.602 N 148°45'42.56 W 9,692.27 80.66 325.71 9,037.80 -66.65 -1,198.89 5,957,575.68 652,924.25 70°17'27.864 N 148°45'43.03 W 9,720.80 81.81 320.05 9,042.16 -44.18 -1,215.90 5,957,597.80 652,906.79 70°17'28.085 N 148°45'43.52 W 9,751.24 83.63 314.04 9,046.02 -22.09 -1,236.47 5,957,619.46 652,885.77 70°17'28.302 N 148°45 44.12 W 9,780.71 84.27 306.98 9,049.13 -3.07 -1,258.73 5,957,638.02 652,863.12 70°17'28.489 N 148°45'44.77 W 9,811.41 83.82 299.85 9,052.31 13.74 -1,284.20 5,957,654.30 652,837.31 70°17'28.654 N 148°45'45.51 W 9,840.46 85.46 293.29 9,055.03 26.66 -1,310.06 5,957,666.69 652,811.20 70°17'28.781 N 148°45'46.27 W 9,869.63 90.18 291.74 9,056.14 37.82 -1,336.98 5,957,677.30 652,784.06 70°17'28.891 N 148°45 47.05 W 9,901.47 89.94 290.35 9,056.11 49.26 -1,366.69 5,957,688.12 652,754.12 70°17'29.003 N 148°45 47.92 W 9,930.74 88.40 283.88 9,056.53 57.86 -1,394.65 5,957,696.15 652,726.00 70°17'29.088 N 148°45'48.73 W 9,959.71 89.91 283.30 9,056.96 64.67 -1,422.80 5,957,702.38 652,697.71 70°17'29.155 N 148°45 49.55 W 9,989.71 91.93 280.54 9,056.48 70.87 -1,452.15 5,957,707.97 652,668.25 70°17'29.216 N 148°45'50.41 W 10,019.77 94.42 276.90 9,054.81 75.42 -1,481.81 5,957,711.91 652,638.50 70°17'29.261 N 148°45'51.27 W 10,049.51 99.24 271.89 9,051.27 77.68 -1,511.23 5,957,713.57 652,609.04 70°17'29.283 N 148°45'52.13 W 10,067.73 103.37 272.52 9,047.70 78.37 -1,529.08 5,957,713.89 652,591.18 70°17'29.289 N 148°45'52.65 W 10,080.51 106.45 274.79 9,044.41 79.16 -1,541.40 5,957,714.43 652,578.85 70°17'29.297 N 148°45'53.01 W 10,094.47 108.30 278.08 9,040.24 80.65 -1,554.64 5,957,715.65 652,565.59 70°17'29.312 N 148°45'53.39 W 10,105.17 108.77 281.10 9,036.84 82.34 -1,564.64 5,957,717.13 652,555.55 70°17'29.328 N 148°45'53.68 W 10,115.19 110.19 282.90 9,033.50 84.30 -1,573.88 5,957,718.90 652,546.27 70°17'29.348 N 148°45'53.95 W 10,126.67 111.44 286.44 9,029.42 87.02 -1,584.26 5,957,721.40 652,535.84 70°17'29.374 N 148°45'54.26 W 10,134.49 111.72 288.91 9,026.54 89.22 -1,591.19 5,957,723.47 652,528.87 70°17'29.396 N 148°45'54.46 W 10,180.00 111.72 288.91 9,009.70 102.92 -1,631.18 5,957,736.35 652,488.61 70°17'29.531 N 148°45'55.62 W TD 6/12/2013 1.41:53PM Page 3 COMPASS 5000.1 Build 61 Fair BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB D Pad D-31 - Slot 31 D-31B Survey: MWD Survey Report - Geographic 12 June, 2013 • by Milli BAKER HUG S Survey Report-Geographic C.)bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well D-31-Slot 31 Project: Prudhoe Bay TVD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Site: PB D Pad MD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Well: D-31 North Reference: True Wellbore: D-31B Survey Calculation Method: Minimum Curvature Design: D-31 B Database: EDM R5K-Alaska PROD-ANCP1 Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB D Pad,TR-11-13 Site Position: Northing: 5,955,590.34 usft Latitude: 70°17'8.492 N From: Map Easting: 652,165.06 usft Longitude: 148°46'6.32 W Position Uncertainty: 0.00 usft Slot Radius: 0.000 in Grid Convergence: 1.16° Well D-31 API No. 500292267200 Well Position +N/-S 0.00 usft Northing: 5,957,666.89 usft Latitude: 70°17'28.520 N +EI-W 0.00 usft Easting: 654,121.44 usft Longitude: 148°45'8.09 W Position Uncertainty 0.00 usft Wellhead Elevation: usft Ground Level: 0.00 usft Wellbore D-318 API no. 500292267202 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°I (') (nT) BGGM2012 5/30/2013 20.37 81.02 57,622 Design D-31B Audit Notes: Version: Phase: ACTUAL Tie On Depth: 9,600.45 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (usft) (usft) (usft) (°) 37.63 0.00 0.00 306.71 Survey Program Date: 6/7/2013 From To (usft) (usft) Survey(Wellbore) Tool Name Description 219.87 3,572.91 1 :MWD-Standard(D-31) MWD MWD-Standard 3,656.00 9,379.54 MWD(D-31A) MWD MWD-Standard ' 9,398.00 9,600.45 MWD(D-31BPB1) MWD MWD-Standard 9,621.00 11,370.00 MWD(D-31B) MWD MWD-Standard 6/12/2013 1:45:55PM Page 2 COMPASS 5000.1 Build 61 "'U BAKER HUGHES Survey Report-Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well D-31-Slot 31 Project: Prudhoe Bay TVD Reference: Orig RKB D-31 D-31 A @ 82.93usft(Orig RKB D-31 D-3 Site: PB D Pad MD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Well: D-31 North Reference: True Wellbore: D-31 B Survey Calculation Method: Minimum Curvature Design: D-31 B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 9,600.45 73.30 345.17 9,017.21 -147.35 -1,161.37 5,957,495.77 652,963.41 70°17'27.070 N 148°45'41.93 W TIP 9,621.00 74.90 340.33 9,022.84 -128.48 -1,167.23 5,957,514.51 652,957.17 70°17'27.256 N 148°45'42.10 W I KOP 9,649.92 79.55 337.71 9,029.24 -102.16 -1,177.33 5,957,540.62 652,946.53 70°17'27.515 N 148°45'42.40 W 9,680.46 85.24 333.31 9,033.28 -74.64 -1,189.88 5,957,567.88 652,933.42 70°17'27.785 N 148°45 42.76 W 9,709.16 89.63 331.34 9,034.56 -49.25 -1,203.20 5,957,592.99 652,919.59 70°17'28.035 N 148°45'43.15 W 9,740.44 94.24 335.99 9,033.51 -21.25 -1,217.06 5,957,620.70 652,905.16 70°17'28.310 N 148°45'43.55 W 9,769.13 90.00 339.85 9,032.45 5.31 -1,227.83 5,957,647.03 652,893.85 70°17'28.571 N 148°45'43.87 W 9,800.46 85.02 334.72 9,033.81 34.16 -1,239.91 5,957,675.62 652,881.18 70°17'28.855 N 148°45 44.22 W 9,814.65 85.33 330.91 9,035.00 46.74 -1,246.36 5,957,688.06 652,874.47 70°17'28.979 N 148°45'44.41 W 9,830.45 86.69 325.20 9,036.10 60.10 -1,254.70 5,957,701.26 652,865.86 70°17'29.110 N 148°45'44.65 W 9,862.43 89.48 319.26 9,037.17 85.36 -1,274.27 5,957,726.10 652,845.78 70°17'29.359 N 148°45 45.22 W 9,890.73 94.30 314.83 9,036.24 106.05 -1,293.53 5,957,746.39 652,826.10 70°17'29.562 N 148°45'45.78 W 9,918.81 96.21 309.73 9,033.66 124.85 -1,314.21 5,957,764.77 652,805.04 70°17'29.747 N 148°45 46.39 W 9,950.49 93.07 317.31 9,031.10 146.58 -1,337.08 5,957,786.02 652,781.73 70°17'29.961 N 148°45'47.05 W 9,980.51 94.33 326.39 9,029.16 170.11 -1,355.57 5,957,809.17 652,762.76 70°17'30.192 N 148°45'47.59 W 10,013.96 93.84 335.16 9,026.77 199.20 -1,371.84 5,957,837.91 652,745.90 70°17'30.478 N 148°45'48.07 W 10,041.95 92.18 338.17 9,025.30 224.86 -1,382.91 5,957,863.34 652,734.31 70°17'30.731 N 148°45 48.39 W 10,074.58 89.39 332.03 9,024.85 254.44 -1,396.64 5,957,892.63 652,719.97 70°17'31.021 N 148°45 48.79 W 10,104.15 90.40 327.65 9,024.91 280.00 -1,411.49 5,957,917.88 652,704.60 70°17'31.273 N 148°45 49.22 W 10,132.64 93.87 323.16 9,023.84 303.43 -1,427.65 5,957,940.97 652,687.97 70°17'31.503 N 148°45'49.69 W 10,163.00 92.27 317.82 9,022.22 326.81 -1,446.93 5,957,963.94 652,668.21 70°17'31.733 N 148°45'50.26 W 10,195.67 92.27 314.27 9,020.92 350.30 -1,469.59 5,957,986.97 652,645.08 70°17'31.964 N 148°45'50.92 W 10,227.03 91.23 310.64 9,019.96 371.46 -1,492.71 5,958,007.64 652,621.53 70°17'32.172 N 148°45'51.59 W 10,255.57 89.57 308.54 9,019.77 389.64 -1,514.70 5,958,025.37 652,599.18 70°17'32.351 N 148°45'52.23 W 10,285.57 89.69 305.32 9,019.96 407.67 -1,538.68 5,958,042.90 652,574.84 70°17'32.528 N 148°45'52.93 W 10,317.61 89.72 310.33 9,020.12 427.31 -1,563.98 5,958,062.02 652,549.14 70°17'32.721 N 148°45'53.67 W 10,351.55 91.23 316.98 9,019.84 450.72 -1,588.52 5,958,084.92 652,524.13 70°17'32.951 N 148°45'54.38 W 10,380.29 90.86 321.73 9,019.32 472.52 -1,607.23 5,958,106.33 652,504.97 70°17'33.166 N 148°45'54.93 W 10,410.43 90.74 326.74 9,018.90 496.97 -1,624.84 5,958,130.41 652,486.87 70°17'33.406 N 148°45'55.44 W 10,440.41 89.79 331.58 9,018.76 522.70 -1,640.20 5,958,155.82 652,470.98 70°17'33.659 N 148°45'55.89 W 10,470.43 90.30 336.03 9,018.74 549.63 -1,653.45 5,958,182.47 652,457.19 70°17'33.924 N 148°45'56.28 W 10,500.55 87.39 339.92 9,019.34 577.54 -1,664.74 5,958,210.14 652,445.33 70°17'34.198 N 148°45'56.60 W 10,530.60 86.59 343.79 9,020.92 606.05 -1,674.09 5,958,238.45 652,435.40 70°17'34.479 N 148°45'56.88 W 10,560.40 87.02 346.98 9,022.58 634.83 -1,681.59 5,958,267.07 652,427.31 70°17'34.762 N 148°45'57.10 W 10,600.66 91.11 343.07 9,023.24 673.71 -1,691.99 5,958,305.72 652,416.12 70°17'35.144 N 148°45'57.40 W 10,633.11 91.54 339.67 9,022.49 704.44 -1,702.35 5,958,336.24 652,405.13 70°17'35.447 N 148°45'57.70 W 10,660.95 91.90 336.91 9,021.65 730.29 -1,712.64 5,958,361.87 652,394.31 70°17 35.701 N 148°45'58.00 W 10,690.77 89.69 332.91 9,021.24 757.29 -1,725.29 5,958,388.60 652,381.12 70°17'35.966 N 148°45'58.37 W 10,730.35 88.74 328.53 9,021.78 791.80 -1,744.64 5,958,422.70 652,361.06 70°17 36.306 N 148°45'58.93 W 10,760.30 91.23 326.52 9,021.79 817.06 -1,760.71 5,958,447.63 652,344.47 70°17 36.554 N 148°45'59.40 W 10,790.35 93.25 323.47 9,020.61 841.66 -1,777.94 5,958,471.86 652,326.75 70°17'36.796 N 148°45'59.91 W 10,820.58 92.58 322.90 9,019.08 865.83 -1,796.03 5,958,495.65 652,308.17 70°17'37.033 N 148°46'0.43 W 10,849.27 90.77 326.03 9,018.24 889.16 -1,812.69 5,958,518.64 652,291.03 70°17'37.263 N 148°46'0.92 W 10,879.97 89.69 330.72 9,018.12 915.29 -1,828.79 5,958,544.43 652,274.41 70°17'37.520 N 148°46'1.39 W 10,910.17 87.67 333.54 9,018.81 941.98 -1,842.90 5,958,570.82 652,259.75 70°17'37.782 N 148°46'1.80 W 10,940.17 88.50 337.67 9,019.81 969.28 -1,855.28 5,958,597.86 652,246.81 70°17'38.051 N 148°46'2.16 W 10,968.78 87.15 340.43 9,020.90 995.97 -1,865.50 5,958,624.34 652,236.05 70°17'38.313 N 148°46'2.46 W 11,000.37 89.05 343.64 9,021.95 1,026.00 -1,875.23 5,958,654.16 652,225.70 70°17'38.609 N 148°46'2.74 W 11,030.22 88.03 344.92 9,022.71 1,054.73 -1,883.32 5,958,682.71 652,217.03 70°17'38.891 N 148°46'2.98 W 11,059.35 88.68 348.02 9,023.54 1,083.03 -1,890.13 5,958,710.87 652,209.64 70°17'39.169 N 148°46'3.18 W 11,090.09 91.08 351.72 9,023.61 1,113.29 -1,895.54 5,958,741.00 652,203.62 70°17'39.467 N 148°46'3.33 W 11,120.19 90.64 356.54 9,023.16 1,143.22 -1,898.61 5,958,770.86 652,199.93 70°17'39.761 N 148°46'3.42 W 11,150.30 88.89 0.22 9,023.28 1,173.31 -1,899.46 5,958,800.93 652,198.46 70°17'40.057 N 148°46'3.45 W 6/12/2013 1.45.55PM Page 3 COMPASS 5000.1 Build 61 Milli BAKER MIMES Survey Report-Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well D-31-Slot 31 Project: Prudhoe Bay TVD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Site: PB D Pad MD Reference: Orig RKB D-31 D-31A @ 82.93usft(Orig RKB D-31 D-3 Well: D-31 North Reference: True Wellbore: D-31B Survey Calculation Method: Minimum Curvature Design: D-31B Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 11,181.70 89.11 4.76 9,023.83 1,204.66 -1,898.10 5,958,832.30 652,199.18 70°17'40.366 N 148°46'3.41 W 11,210.73 88.62 8.22 9,024.40 1,233.50 -1,894.82 5,958,861.20 652,201.87 70°17'40.649 N 148°46'3.31 W 11,249.91 90.37 14.34 9,024.75 1,271.90 -1,887.16 5,958,899.74 652,208.74 70°17'41.027 N 148°46'3.09 W 11,280.08 90.31 14.77 9,024.57 1,301.10 -1,879.58 5,958,929.09 652,215.72 70°17'41.314 N 148°46'2.87 W 11,310.47 91.38 10.64 9,024.12 1,330.74 -1,872.90 5,958,958.86 652,221.79 70°17'41.606 N 148°46'2.68 W 11,324.21 92.61 8.54 9,023.64 1,344.28 -1,870.61 5,958,972.44 652,223.80 70°17 41.739 N 148°46'2.61 W 11,370.00 92.61 8.54 9,021.56 1,389.51 -1,863.82 5,959,017.80 652,229.66 70°17'42.184 N 148°46'2.41 W TD-27/8" 6/12/2013 1.45 55PM Page 4 COMPASS 5000.1 Build 61 RECEIVED ? t a JUL 2 3 2013 Letter of Transmittal VPI ___ A000C BAKER Date: July 19, 2013 HUGHES _ -- __-- To: From: State of Alaska AOGCC Baker Hughes INTEQ 333 W. 7th Ave., Suite 100 795 East 94th Avenue Anchorage, Alaska 99501 Anchorage, Alaska 99515 Bill Michaelson Please find enclosed the directional survey data for the following well(s): E-01 B D-31 BPB 1, D-31 B E-16APB1, E-16A F-01 B E-25APB1, E-25A (resubmission to correct API number on E-25APB1 only, E-25A is unchanged) G-12C F-26C B-05DPB1, B-05D Y-33APB1, Y-33A 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 A Ia Iii Lid , , State of Alaska AOGCC DATE: N. es cu " 5 0 p � 70 LO 4 O) IF1 m vi ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ a+ 7 p U U U0 U U0 U U U U U U U U U U 1 d 1O O , 21...4O ❑ C o O 2 �t co ,..Z Q `z Y O U} -_ a) - O PI % tl2 ` m 7 M rn co U m 11 a �.r5�+ E N A re '["''+ , M M „ M M M M M M M M M N ,- )- N N = t!1 cu -//J 03 i p LL 2 2 2 ti u- 2 ' 2 ' ' n Z ti N -) 0 a) •v '\ a N �+ O 1` N O - 4' O N 6 N N 00 N •i u (- t in r= M e- O e- 1- a- N e- N a- N N N N a x ) > c w- > Q O I0 2 � o 0 W J J H H CL re 0 z U) co w cc 1..1 LL LL O LL LL LL LL LL 1- 0 re CL CL d 00 Wp oaU U 0 O O wJ a a W d d d n. C. mD. W H 1- 6 H wwvuvi occcexo m cc c O O O 6 D O ❑ O J O 2 H J O C9 E 2 E a w w E w E Z 2 1- a 2 U W W W W > > W > W U W t/) W U ❑ ❑ ❑ 2 2 2 J J J 2 J 2 2 E J fn n. 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N a x a m c) c PTD Ferguson, Victoria L (DOA) To: Lastufka, Joseph N Cc: Gorham, Bradley M Subject: RE: D-31B (PTD 212-168) Updated Pre-Rig Procedure This has been approved for D-31B (PTD 212-168). Thanx, Victoria Victoria Ferguson Senior Petroleum Engineer State of Alaska Oil&Gas Conservation Commission 333 W 7th Ave,Ste 100 Anchorage,AK 99501 Work (907)793-1247 victoria ferqusonalaska gov From: Lastufka, Joseph N [mailto:Joseph.Lastufka@bp.com] Sent: Monday, April 29, 2013 11:53 AM To: Schwartz, Guy L(DOA); Ferguson, Victoria L(DOA) Cc: Gorham, Bradley M Subject: FW: D-31 (PTD 212-168) Updated Pre-Rig Procedure Hello, We moved off this well in December after an unsuccessful attempt at milling the window. Here is the updated pre-rig procedures to re-establish an attempt to sidetrack. Please let me know if you have any questions. Thanks! Joe From: Gorham, Bradley M Sent: Monday, April 29, 2013 11:33 AM To: Lastufka,Joseph N Subject: FW: D-31 Updated Pre-Rig Procedure Let me know if you need anything else. Thanks, Brad 1 From: Allely, Josh (BPXA) Sent: Friday, April 26, 2013 4:27 PM To: G AK D&C Wel[work Program Cc: Gorham, Bradley M; Johnston, David; AK, D&C WL&Completions Coordinator Subject: D-31 Updated Pre-Rig Procedure Attached is an updated procedure for the pre-rig work on D-31. Please modify the WBL to reflect the following: 1. E Tubing Punch 2. F MIT-T; LLR if fails. 3. C Cement Plug 4. S Drift and Tag 5. F MIT-T «D-31 -2013-04-24-Cement Plug.docx>> The JMS entry for this work is the following: http://apps2-alaska.bpweb.bp.com/JobManagementSvstem/Home/JobDetaiis.aspx?JobId=3C3CE8A9-4697-47CD-A2A9- 152084CBB1 FA Josh Allely Well Intervention Engineer BP Alaska 907-564-5732 (office) 907-350-7362 (mobile) 2 P 7-D 044,49.4S-- Z!2 -!cg Wellwork Procedure Request To: Well Services Operations Team Lead Date: 04/24/2013 Wireline Operations Team Lead AFE: X3-012VW-C:PREPOST From: Josh Allely-Well Intervention Engineer IOR: NA Est.Cost: 200K Subject: D-31 Cement Whipstock and Tubing Tail Please perform the following steps 1. E Tubing Punch 2. F MIT-T; LLR if fails. 3. C Cement Plug 4. S Drift and Tag 5. F MIT-T Current Status: Last Well Test: NA: Parent wellbore is abandoned. Minimum ID: 3.80": Milled XN nipple at 9412' MD Max Deviation: 60deg at 9440' MD (top of whipstock) Top Perf Deviation: NA: Perls are abandoned. Safety Note: Last TD Tag: 12/16/12: 9441' CTDMD. CTD rig attempting to mill window. Last Downhole Op: 12/16/12: Set TWC. SBHP/SBHT: NA: Perfs are abandoned. Latest H2S: AnnComm Status: Operable. Well History E-Line set a Baker 4-1/2" x 7-5/8" whipstock on 12/6/12 at 9440' ELMD (top of whipstock). No issues were reported in the setting operation. Top of whipstock is 17' past the end of the TBG tail at 9423' ELMD. During the CTD window milling operation, the window mill was severely damaged and the rig was forced to move to the next well. A subsequent video log showed that the whipstock was slightly off-center. Plan forward is to cement the whipstock inplace and attempt to mill another window. If that attempt fails, a whipstock will be set in the tubing tail and a two-string exit will be attempted. Program Contacts Contact Phone-Work Phone-Mobile/Home Interventions Engineer Josh Allely 907-564-5732 907-350-7362 Drilling Engineer David Johnston 907-564-5985 907-230-4697 Page 11 of 8 E-Line Tubing Punch Planned Procedure 1. Perform a tubing punch at 9368'-9372' MD [ref SLB CIBP / Perf Record, 21-May-2010]. This should correspond to the pup joint directly below the TIW HBBP-T packer. 2. 4' is being requested to ensure a sufficient number of holes, as it will be impossible to verify a successful punch. Aside from the increased length, tubing punch should be configured per RP. Fullbore MIT-T; LLR if fails. Notes: • An injectivity test is being requested to determine the status of the wellbore prior to coiled tubing arriving. As such, if this test fails, it is not necessary to retest. • The tubing fluid level is unknown, but is assumed to be at surface. Planned Procedure 1. Perform a MIT-T to 2000 psi with diesel. If test fails obtain a LLR. 2. Pressures are confirmed to be within completion pressure ratings. Coiled Tubing Cement Whipstock Notes: • The objective of this procedure is to place a cement plug on top of the whipstock at 9444' MD and to cement the tubing tail in place if a two string exit is required. • The tubing tail will be cemented in place by allowing cement to naturally u-tube around the tubing tail through the tubing punch holes shot below the packer. • Please review the RP: CTU Operations - Small Cement Plugs prior to executing the job. Because the cement volume is small (-4 bbls), the small cement plug procedure will be used to ensure clean cement at the whipstock. • Coordinate with the BP toolroom to verify the Pig Shear Nozzle is available and redressed to ensure the nozzle is suitable for the job. Cement Design: BHST- 190 deg F. SBHP - 3100 psi. BHCT- 170 deg F Density = 15.8 ppg Mix on the fly Thickening time = 3 to 4 hrs. Fluid Loss = 50-80 cc/30 min Pump time = 35 minutes at assumed rate of 1.0 bpm Requested Volume: 4.0 bbls. Page I2of8 Free Water: 0 Compressive Strength: Minimum of 2000 psi Filter Cake: 0.75"-1.0" Planned Procedure 1. MU and RIH with pig shear nozzle assembly without check valves. 2. RIH down to the whipstock. Well is a closed system so returns will need to be taken to tanks while RIH. 3. Tag whipstock. PUH until weight back and correct depth to 9444' ELMD. PUH -1-2' above whipstock and park CT. 4. Load a foam pig, exactly 4.0 bbls of class G cement, and another foam pig with the correct ball for the "Pig Shear Nozzle". 5. Circulate the cement to the nozzle at 1 to 2 bpm. Reduce the pump rate to 0.5 bpm when cement is 2 barrels from the nozzle. Hold sufficient backpressure on the choke to ensure cement does not out fall out of CT as pump rate is reduced. 6. Slowly circulate cement around CT (do not lay in cement). 7. Continue to pump until the ball seats. Do not shear the nozzle. Shut down the pumps. 8. Slowly pull the coil to the calculated cement top of 9315' MD and wait 5 minutes for the cement to settle. 9. Pressure up CT and shear open the nozzle. 10. POOH replacing pipe voidage down the backside. Avoid pumping down the CT while POOH for the first -500 so as not to string cement up hole. After PUH a sufficient distance from the cement, pump down the CT as required. POOH keeping hole full and freeze protect the well to 2500' with diesel. 11. RDMO. Slickline Drift and Tag Cement Planned Procedure 1. Tag TOC with a -2.5" OD centralizer and sample bailer. 2. Run a 3.80 gauge ring (or similar) to TOC or as deep as possible. This will determine if there are any stringers left in the TBG. It is not necessary to tag same TOC as in previous step. Fullbore MIT-T; LLR if fails. Planned Procedure 1. Perform a MIT-T to 2000 psi with diesel. If test fails obtain a LLR. Page 1 3 of 8 • 2. If this MIT-T passes, it will not be necessary to install a TWC. 3. Pressures are confirmed to be within completion pressure ratings. Page I4of8 Appendix A: Annotated Log Section Schlumberger Co"'wany: BP Exploration (Alaska). Inc D-31A FINAL Prudhoe Bay - North Slope State: Alaska Baker CIBP/Perforation Record WeliTec Tractor / CCL/ 3-3/8' HSD Gun � Y t 21-May-2010co _.._ chi F 1949'FSL 8 t 0E38'FEL Elev. KB. 82.93 ft °5 Z at surface G.I. 0.00 ft If.) O Q D F 000 a in n U Permanent Datum MSL Rev.: 0.00 ft d CD C7' Log Measured From 14KE3 82 93 ft above Perm.Datum tDrilling Measured From: .HKB _' API Serial No Section Township Range LL ( 50029.22672-01 23 11N 13E togging Date 2I-May-2010 tun Number 1 )cpth Driller 11717 ft ichlumberger Depth TD Not Tagged 3ottorn Log Interval 9820 ft Op Log Interval 9096 ft rasing Fluid Type 3aknky )ensity kid Level BIT/CASING/TUBING STRING at Size •rom -0 asirgfl"ubing Size 4.500 in Wight 12.6 trnlft Trade L-80 :rom O R 0 9424 ft Aaximum Recorded Temperatures .ogger On Bottom Time 22-May-2010 16:13 )nit Number I Location 2320 Prudhoe Bay j iocorded By B Huber/N.LaCroix 1 J Schanne Vitnessed By J. Flora/J.Dahiem Page 15 of 8 X NiP !- - 3 PACKER i 1j 1 'njl I � I X NIP 9300 i i- .. 1 L 1 j •YERSHOT a y t , _- _ .• •, S _ X NIP illy { PACKER t ' .� I _ X N,P �T!� 1 * 94+ � __._ . XNNIP ,....— )S ` W-EG """� CCC"' ir . i Page I6of8 Appendix B: DHV Whipstock Photos S I l'ffterp k t0111 '11( ) " A Man° • • - . - ' f . • • , 41811.14ft :.7‘ Tignpwraturrs: .490 -}•• 0 ga#MOrii) R143: C,0111 1 D • Jw- (ft11r1::: •At,t0111,itic asmijatio Do r 43". x . I • - • 53. 54 •• -•••• • • :••• 9441 . 66 ft IrsEringmrsiturn: 263.65°F 0. 00 ft/I11114 Rost: Nigh • Page 7 of 8 A • 4 - (1.:) • 5 4 C) :.) • � May-�'`s`r •�: ', ., fi. 844'.. .70on: 3r ,; ®'oml c.,co Uuo, . 1 o ti ii: Nt # titom,-1tdC,r' r \ : a ( ;t . '9 �r� K r�-,C© s, Aux t, =0 . :_ k` y y' J i 111 , , P t g44T.`._ l t . Oo000 �n � � : � Page ( 8 of 8 Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) Sent: Monday, December 17, 2012 10:59 AM To: 'Gorham, Bradley M' Subject: RE: D-31 B Temporary Abandonment 2( 12-168) (196-095) Brad, As we discussed since you are still working under the P &A sundry do not send in the 407 for the P &A yet. When you decide on the next plan of action please update me and I will let you know if a 403 sundry will be required before attempting the sidetrack again. Regards, Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Gorham, Bradley M [mailto:Bradley.Gorham@bp.com] Sent: Monday, December 17, 2012 10:43 AM To: Schwartz, Guy L (DOA) Subject: D-31B Temporary Abandonment Guy, Drilling operations has been postponed on well D-31B due to failed milling operations while drilling with CTD. It has been decided to temporarily abandon this well while we evaluate the problem and engineer a solution. If anything new arises I will contact you and I will keep you posted with any forward strategy we develop. I also attached a schematic for your reference. Thanks, Brad Gorham BP Exploration (Alaska), Inc. Drilling Engineer W: (907)564-4649 C: (907)250-3209 Bradley.Gorham@bp.com 12/17/2012 of r� THE STATE �w����I\V/7 , 6,A s,, Alaska Oil and Gas �,l�'� °fALAS ;1� Conservation Commission GOVERNOR SEAN PARNELL 333 West Seventh Avenue 0 �. Anchorage, Alaska 99501-3572 AL A.9%41.' Main: 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 D-31B BP Exploration (Alaska), Inc. Permit No: 212-168 Surface Location: 1945' FSL, 1068' FEL, SEC. 23, T11N, R13E, UM Bottomhole Location: 3203' FSL, 3179' FEL, Sec. 23, T11N, R13E, UM Dear Mr. McMullen: Enclosed is the approved application for permit to re-drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, MI P Cathy . Foerster Chair DATED this Zal day of November, 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 RECEIVED ALA OIL AND GAS CONSERVATION COME ON NOV 0 8 2012 PERMIT TO DRILL 20 AAC 25.005 AOGCC 1a.Type of work: 1b.Proposed Well Class: 0 Development Oil ❑Service-Winj ®Single Zone • 1c Specify if well is proposed for 0 Drill . 0 Lateral 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed Gas ❑Gas Hydrates 0 Redrill 0 Reentry 0 Exploratory 0 Service-WAG ❑Service-Disp 0 Geothermal 0 Shale Gas 2.Operator Name: 5.Bond ®Blanket 0 Single Well 11.Well Name and Number: BP Exploration(Alaska) Inc. Bond No 6194193 " PBU D-31B 3. Address 6. Proposed Depth: 12. Field/Pool(s) P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 11396' • ' TVD 8958'ss - Prudhoe Bay/Prudhoe Bay • 4a Location of Well(Governmental Section): 7 Property Designation(Lease Number): Surface. ADL 028285 1945' FSL, 1068' FEL,Sec. 23,T11 N, R13E, UM - Top of Productive Horizon: 8. Land Use Permit: 13 Approximate Spud Date' /3 x/31, 2 '/-7-6:72_,,.5 Z''_3 17/AriX43 t;Cf / December 5,2012- ` Total Depth 9 Acres in Property. 14.Distappt t Bare Pr rty 320_3/13G, j/71 F�1 See-Z.3 7—//,v; ezi 5±/642560 '041420- y� N 4 1141- 4b. Location of Well(State Base Plane Coordinates-NAD 27)• iy,` 10.KB Elevation above MSL: `2,'f 3 .feet 15.Distance to Nearest Well Open Surface. x 654122 • y-5957666 . Zone- ASP4 GL Elevation above MSL. 45.3' feet to Same Pool: 540' 16.Deviated Wells: Kickoff Depth. 9440' • feet - 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 94 degrees Downhole• 3214 • - Surface: 2334 -- 18. Casing Program Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD ..1,044p Pp frij TVD (including stage data) 4-1/8" 3-1/4"x 2-7/8" 6.6#/4.7# L-80 TC-II/STL 2035' 9360' 11395',8820'ss,8958'ss 102 sx Class'G' r 19 PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft). Effective Depth TVD(ft) Junk(measured) 11848' 9031' 9725' 11717' 9030' None Casing Length Size Cement Volume MD ND Conductor/Structural 76' 20" 260 sx Arctic Set(Approx.) 34'- 110' 34'- 110' Surface 3781' 10-3/4" 1080 sx PF'E', 375 sx Class'G', 260 sx PF'E' 35'-3216' 35'-3199' Intermediate 9745' 7-5/8" 493 sx Class'G' 36'-9781' _ 36'-9033' Production Liner 2209' 4-1/2" 389 sx Class'G' 9639'- 11848' 9016'-9031' Perforation Depth MD(ft): 9614'- 11500' Perforation Depth TVD(ft). 9011'-9031' 20.Attachments: 0 Property Plat ®BOP Sketch ®Drilling Program ❑Time vs Depth Plot 0 Shallow Hazard Analysis ®Diverter Sketch ❑Seabed Report ®Drilling Fluid Program ®20 AAC 25 050 Requirements 21. Verbal Approval: Commission Representative: Date 22.I hereby certify that the foregoing is true and correct: Contact Brad Gorhan,564-4649 Printed Name John/ u,..111Title Engineering Team Leader Email Bradley Gorham@bp.com / Signature Phone 564-4711 Date l �/�/? Commission Use Only Permit To Dr•I n • API Number: Permit Approv QI Dat : See cover letter for Number: , 1l cIP 50-029-22672-02-00 �i IWI 1(2 other requirements: Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas NI Other: * 3500 S` 13r Q s Samples Req'd 0 Yes I contained shales No Mud Log Req'd• 0 Yes ®No H25 Measures: (g]Yes 0 No Directional Survey Req'd ®Yes 0 No Spacing exception req'd: 0 Yes ®No inclination-only svy Req'd. 0 Yes 10 No . I / p \ APPROVED BY - APP Y e� {/� --COMMISSIONER THE COMMISSION Date it-Z.— r Z Iv Forn �t' . 4'0311,1:4 L This permi "s valid for 24 months from the date of approval(20 AAC 25.005(g)) Submit For d Attach%nts IInpupii t t . ll•Z4.!L / 111j_34 it\a�\,fi To: Alaska Oil & Gas Conservation Commission IJp From: Brad Gorham CTD Engineer Date: November 7, 2012 Re: D-31 B Permit to Drill request History of D-31B Approval is requested for a permit to drill a CTD sidetrack from well D-31A. D-31A is a rotary ST completed in May 1996 with 1210' of perforations in Zn 2A. The well produced until it was shut-in 6/03 for tubing holes. A RWO was completed in Jan 2004. The well was POP'd but the GOR continued to rise to MGOR over the next 4 years. Both IBPs were removed from the well in Oct 2008. Initial test results were good with flush oil but this was short-lived. In May 2010 a CIBP was set at 9725' to isolate the lateral and 20' of Zn 2B in the heel was shot. This provided minimal production benefit. D-31A is currently shut-in for high GOR. Reason for Sidetrack The proposed plan for well D-31B is to sidetrack out of the D-31A 4-1/2" liner with Nordic 1 Coiled Tubing Drilling rig on or around December 05, 2012. D-31A is not a competitive producer due to a high GOR, and there are no remaining wellwork options. The proposed sidetrack will access reserves in a -35 acre Zn 2A/2BI target (HOTIp yZin central D-pad. CTD SIDETRACK SUMMARY Pre-Rig Work: (scheduled to begin November 21st, 2012). 1. S Set DGLV's. 2. F MIT-OA (Passed -2000 psi - 6/23/2012). MIT-IA (Passed - 3000 psi - 6/25/2012) 3. W PPPOT-IC (N/A) PPPOT-T (Passed - 5000 psi -7/02/2012) Cycle LDS. 4. V PT MV, SV, WV. 5. S Dummy WS drift to 9,550' MD. 6. E Mill XN profile at 9,355' MD to 3.80". 7. E Set 7" PosiSet Plug to 9,600' MD 8. E Bail 19 gallons cement on top of PosiSet plug (equal to 10' in 7-5/8" CSG) 9. F Test MIT-T to 500 psi. 10. E Set 4-1/2 x 7" TT Whipstock to 9,440'. 11. 0 Bleed production flowlines down to zero and blind flange. p � 3� 12. 0 Remove wellhouse, level pad. 31Z/ `� 13.V Set TWC. -24hr prior to rig arrival. 1r Rig Work: (scheduled to begin on December 5, 2012). 1. MIRU and test BOPE to 250 psi low and 3500psi high. Pull TWC. 2. Mill 3.8" window at 9,440' MD and 10' of rathole. • 3. Drill Build: 4.125" OH, 382' (21°/100). 4. Drill Lateral: 4.125" OH, 1573' (12°/100). 5. Run 3-1/4" x 2-7/8" L-80 liner from 9,360'-11,395' MD. ✓ 5 6. Pump primary cement leaving TOC at 9,360' MD. 21 bbls of 15.8 ppg liner cmt planned 7. Perform liner cleanout with mill, motor and MCNL/GR/CCL log 8. Test liner lap to 2,400 psi. 9. Perforate liner per asset instructions (-200') 10. Freeze protect well, set BPV and RDMO. Post-Rig Work: 1. Re-install wellhouse and FL's and pull BPV. 2. Run generic GLV's. 3. Set liner top packer if needed with slickline & test to 2,400 psi Mud Program: • Milling/drilling: 8.6 ppg Power Vis mud for milling window and drilling. (- 721 psi • over-balance) 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. • Fluids >1% hydrocarbons or flammables must go to Pad 3. • Fluids >15% solids by volume must go to GNI. • Fluids with solids that will not pass through 1/4" screen must go to GNI. • Fluids with PH >11 must go to GNI. Hole size: 4.125" 9,360' MD — 11,395' MD Casing Program: • 3-1/4" 6.6#, L-80, STL solid liner 9,360'-10,204' • 2-7/8" 6.4#, L-80, STL solid liner 10,204'-11,395' MD. • Contingency swell packers for faults. • 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 3500 psi. • The annular preventer will be tested to 250 psi and 3500 psi. Directional: • See attached directional plan. Maximum planned hole angle is 93°. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property — 22,000 ft. • Distance to nearest well within pool —540ft to D-19A. Logging: • MWD directional, Gamma Ray and resistivity will be run over all of the open hole section. Perforating: * 2" 2006 PJ HMX guns. 6 spf, 60 degree phasing, random orientation. * 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: • None Hazards: • No planned fault crossings. • D-pad is not an H2S pad. All wells have <100 ppm H2S. • Lost circulation risk is considered low for this well due to unforeseen fault crossings. Reservoir Pressure: • The reservoir pressure on D-31B is expected to be 3214 psi at 8,800' TVDSS. (7.0 ppg equivalent). • Maximum expected surface pressure with gas (0.10 psi/ft) to surface is 2334 psi. . • EMW of 8.4 ppg provides 629 psi to the reservoir. Brad Gorham CTD Engineer 907-564-4649 (Office) 907-250-3209 (Cell) CC: Well File Sondra Stewman/Joe Lastufka TREE= 4"CNV V ELLHEAD= FMC P ro L )sed D-31 B SAF JTES: HORIZONTAL WELL>70'@ 9564'. ACTUATOR= BAKER ***4-.,, CHROME TBG&7-5/8"CHROME LNR*** KB.ELEV= 82.93' BE IELEV= 40.78' KOP= 2074' I I 2110' H4-1/2"X NP,ID=3.813" Max Angle= 94*@ 11150 Datum MD= 9323' GAS LFT MANDRELS Datum ND= 8800'SS LST MD ND DEV TYPE VLV LATCH FORT DATE 4 3433 3416 0 KBG-2 DOME BK 16 02/06/04 10-3/4"CSG,45.5#,L-80,D=9.953" —1 3215' 3 5559 5427 29 KBG-2 S/O BK 20 02/06/04 2 7349 7064 6 KBG-2 DMY BK 0 01/30/04 1 9179 8800 53 KBG-2 DMY BK 0 01/30/04 II ' 9247' —I4-1/2"X NP,D=3.813" Minimum ID =3.725" @ 9412' 4-1/2" XN NIPPLE 9258' �4-1/2"X 7-5/8"S-3 PKR D=3.875" 9281' 44-1/2"X NIP,D=3.813" 4-1/2"TBG, 12.6//,13CR-80, H 9291' , .0152 bpf,ID=3.958" I 9305• H 7-5/8"X 4-1/2'UNIQUE MACHIN OVERSHOT 4-1/2"TBG STUB(01/29/04) H 9305' �/1 ' 9355' —14-1/2"X NIP,D=3.813" 3.7"Deployment Sleeve 9360 MD \/ 9366' --17-5/8"X 4-1/2"TNV I-BBP-T PKR,ID=3.915" X X 9424' —14-1/2"WLEG,D=4.0" 1 I 9390' --I4-1/2"X MP,D=3.813" 9423' —I E LMD TT LOGO 05/13/97 / 9412" �4-1/2'XN NP,D=3.725" " " \ : 4, ,, trztiztkx.,,. / milled out to 3.80 pre-ria 4-1/2 TBG, 12.6#,L-80,.0152 bpf,D=3.958 -I 9424 74-1/2 x 7"TT Whipstock 9440 MC II 3I10,204 3-1/4 x 2-7/8 XO 7"Posiset Plug 9600 MD2-7/8 4.7#L-80 with 19 bbls cement to 9610— ' / J1. / / 11,395 MD • TOP OF 4-1/2"LNR H 9639' 7-5/8"CSG,29.7#,USS-95 XO TO 13CR 80 H 9661' x 4 IIr `4 9639' —17-5/8"X 5-1/2"BKR ZXP LIP,D=3.959" 7-5/8"CSG,29.7#,13CR-80,ID=6.875" H 9781' I--J 9652' H7-5/8"X 5-1/2"BKR LNR HGR,D=3.87" PERFORATION SUMMARYI 9659' —15-1/2"X 4-1/2"X0,13=3.917" REF LOG:SFERRY StJTI MWD/GR ON 06/25/96 I ANGLE AT TOP PERF:76"@ 9614' Note:Refer to Production DB for historical perf data 9725' —I4-1/2"BKR GBP(05/22/10) SIZE SPF NTH2VAL Opn/Sqz DATE ` 3-3/8" 6 9614-9634 0 05/22/10 2-3/4" 4 9910-10010 C 05/30/96 ` 2-3/4" 4 10070-10340 C 06/30/96 2-3/4" 4 10400-10540 C 05/30/96 ` 2-3/4" 4 10620'-11020 C 05/30/96 2-3/4" 4 11110-11330 C 02/06/98 ` 2-3/4" 4 11420-11500 C 02/06/98 111•x, 1111111111 FBTD H 11717' 4-1/2"LNR,12.6#,L-80,.0152 bpf,ID=3.953" H 11848' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 05/08/96 D9 ORIGINAL COMPLETION(PB) 04/13/08 CS/PJC DRAWNG CORRECTIONS WELL: D-31A 05/31/96 D9 SIDETRACK(D-31A) 10/13/08 DMS/PJC PALL BPS(10/09/08) PERMIT No: 1960950 01/31/04 N4E5 RWO 05/30/10 JEYPJC GBP/PERFS(05/22/10) API No: 50-029-22672-01 02/06/04 DAV/TLP GLV GO SEC 23,T11 N,R13E, 1945'FSL&1068'FEL 12/16/04 ROY/TLP SET IBPs 02/05/98&03/27/98 04/02/08 ATD/PJC TBG STUB&MSC CORRECTIONS CTIONS BP Exploration(Alaska) TREE= • 4"CNV VVB-LHEAD= FMC D-31A SAFE OYES: HORIZONTAL WELL>70"@ 9564'. ACTUATOR= BAKER C KB ELEV= 8293' ***4-1/2"CHROMETBG&7-5/8"CHROME LNR`** BF.ELEV= 40.78' KOP= 2074' ' ' 2110' —14-1/2"X NIP,10=3.813" Max Angie=—94'4111507 GAS LIFT MANDRELS Datum ND= 9323' ST MD TVD DEV TYPE VLV LATCH PORT DATE ------ ----------- — Datum TVD= 8800'SS • 4 3433 3416 0 KBG-2 DMY BK 0 06/25/12 10-3/4"CSG,45.5#,L-80,ID=9.953" --{ 3215' Li. 3 5559 5427 29 KBG-2 DBK 0 06/25/12 M1'2 7349 7065 6 KBG-2 DMY BK 0 01/30/04 1 9179 8800 53 KBG-2 DMY BK 0 01/30/04 Minimum ID = 3.726" a@ 9412' • ,----1 9247' H4-1/2"xNIP,ID=3.813" 14-1 /2" XN NIPPLE /�p > 9258' H4-1/2"X 7-5/8"S-3 PKR,D=3.875" 1 ,----{ 9281' H4-1/2"X NIP,ID=3.813" 41/2"TBG, 12.6#,13CR-80, —I 9291' I-- .0152 bpf,ID=3.958" I I— 1 9305' H7-5/8"X 4-112"UNIQUE MACHINE OVERSHOT 4-1/2"TBG STUB(01/29/04) H 9305' ' 1-19355' H4-1/2"X NIP,ID=3.813" - X V 9366' H7-5/8"X4-112"TM/HBBP-T PKR,10=3.915" /�I /,----I 9390' H4-1/2"X NIP,0=3.813" ' ' 9412' H4-1/2"XN NIP,0=3.725" 4-1/7'TBG, 12.6#,L-80, .0152 bpf,ID=3.958" H 9424' / \ 9424' H4-1/2"VVLEG,D=4.0" a9423' —ELMD TT LOGGED 05/13/97 TOP OF 4-1/2"LNR H 9639' 9639' —17-5/8"X 5-1/2"BKR ZXP LTP,0=3.959" /° T 9652' H7-5/8"X 5-1/2"BKR LNR HGR,0=3.87"7-5/8"CSG,29.7#,USS-95 XO TO 13CR-80 H9661' � T. 9659'1 H5-1/2"X 4-1/2"XO,ID=3.917" . 9725' H4-1/2"BKR CIBP(05/22/10) 7-5/8"CSG,29.7#, 13CR-80,ID=8.875" — 9781' 1--4 L I PERFORATION SUMMARY I REF LOG:SPERRY SUN MVVLYGR ON 06/25/96 ANGLE AT TOP PERF:76°@ 9614' Note:Refer to Roduction DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 3-3/8" 6 9614-9634 0 05122/10 2-3/4" 4 9910-10010 C 05/30/96 2-3/4" 4 10070-10340 C 06/30/96 2-3/4" 4 10400-10540 C 05/30/96 ef., 2-3/4" 4 10620-11020 C 05/30/96 ,11*1*�*�* 2-3/4" 4 11110-11330 C 02/06/98 41�'... 2-3/4" 4 11420-11500 C 02/06/98 4• . PBTD H 11717' 4-1/2"LNR,12.6#,L-80, .0152 bpf,ID=3.953" --I 11848' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 05/08/96 1:19 ORIGINAL COMPLETION(PB) 04/13/08 CS/PJC DRAWING CORRECTIONS WELL: D-31A 05/31/96 D9 SIDETRACK(D-31A) 10/13/08 DMS/PJC PULL/BPS(10/09/08) PERMIT No:r1960950 01/31104 N4ES RWO 05/30/10 JED/PJC GBP/PERFS(05/22/10) API No: 50-029-22672-01 02/06/04 DAV/TLP GLV C/O 0628/12 GJF/JMD GLV C/O(06/25/12) SEC 23,T11 N,R13E, 1945'FSL&1068'FEL 12/16/04 ROY/TLP SET IBF§02/05/98&03/27/98 04/02/08 ATD/PJC TBG STUB&MISC CORRECTIONS BP Exploration (Alaska) i 11 i -1 F, 11 Q ua 1.1 E 2 B 8 11 4I 5 2 1E111 LLe 111 1 a re! -4 C iii w -•• 1 1 — 1111 1l g ll .o o m C Y R F $ qu z O I I Q 9 u J I , = I '> 1 0 1I CI m I — II : I 1 = 1 I 111 II U_ S Z � s e � III u 11 E Q f I u H 11 2 I Z 1 .2 uo n . Q ligg PI 1 e $ J 0 e S0 II V 1 fLL u•" u GQ s 1 1 � � t II.. 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O O O O O N N j 1‘ ' ' ' ' ' — ---7. : —7 O LL m 1— r•vm'7 L d� t7e oM o 0 0 N �Jl w, 73 a. r3 p11 0 s. ...:::----,-W: t illiiiii N N S 3 FM BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB D Pad D-31 D-31B Plan 6 Travelling Cylinder Report 07 November, 2012 Øbp Hill BAKER 0 HUGHES Travelling Cylinder Report by INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well D-31 -Slot 31 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB D Pad MD Reference: Orig RKB D-31 D-31A @ 82.93ft(Orig RKB D-31 D-311 Site Error: 0.00ft North Reference: True Reference Well: D-31 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore D-31B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Reference Plan 6 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 9,434.65 to 11,395.65ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,335.80ft Error Surface: Elliptical Conic Survey Tool Program Date 11/7/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 219.87 3,572.91 1 :MWD-Standard(D-31) MWD MWD-Standard 3,656.00 9,434.65 MWD(D-31A) MWD MWD-Standard 9,434.65 11,395.65 Plan 6(D-31B) MWD MWD-Standard Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 11,395.65 8,958.36 2-7/8 2.875 4.125 Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB D Pad D-01 -D-01 -D-01 10,450.00 9,550.00 693.94 160.08 541.21 Pass-Major Risk D-01 -D-01A-D-01A 10,450.00 9,450.00 686.02 143.78 547.04 Pass-Major Risk D-09A-D-09A-D-09A Out of range D-10-D-10-D-10 Out of range D-11 -D-11 -D-11 Out of range D-11 -D-11A-D-11A Out of range D-11 -D-11 B-D-11 B Out of range D-12-D-12-D-12 9,525.00 9,100.00 1,296.99 139.40 1,159.48 Pass-Major Risk D-19-D-19-D-19 11,395.65 7,975.00 1,333.22 175.15 1,260.30 Pass-Major Risk D-19-D-19A-D-19A 10,900.00 10,250.00 508.98 151.29 357.69 Pass-Major Risk D-19-D-19B-D-19B 11,395.65 9,400.00 745.45 166.50 584.95 Pass-Major Risk D-19-D-19C-Plan 8 11,250.00 9,000.00 896.09 142.81 763.65 Pass-Major Risk D-31 -D-31A-D-31A 9,450.00 9,450.00 0.14 1.55 -0.68 FAIL-Major Risk 0-31A_DIMS-D-31A-D-31A 9,452.33 9,450.00 0.22 112.70 -65.78 FAIL-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 11/7/2012 2.15:06PM Page 2 of 18 COMPASS 2003.16 Build 73 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME ?atk - 31a PTD# 21 c X Development Service Exploratory Stratigraphic Test Non-Conventional Well JJ FIELD: �G\ I'ate7 POOL: XLJ1 &. y (Jl 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. 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