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210-163
By Grace Christianson at 3:32 pm, Oct 20, 2025 Digitally signed by Sean McLaughlin (4311) DN: cn=Sean McLaughlin (4311) Date: 2025.10.20 15:17:16 - 08'00' Sean McLaughlin (4311) 325-653 *Variance as per 20 AAC 25.112(i): Approved for alternate abandonment plug placement on parent well contingent upon fully cemented liner on upcoming sidetrack. *Window milling on service coil not approved on 10-403, refer to sidetrack PTD for approval. Open hole window milling not to exceed 15'. TS 10/22/25 DSR-10/30/25 10-407 J.Lau10/31/25 10/31/25 To: Alaska Oil & Gas Conservation Commission From: Ryan Ciolkosz Drilling Engineer Date: October 20, 2025 Re:15-11C Sundry Request Sundry approval is requested to set a whipstock in the 15-11C wellbore as part of the drilling and completion of the proposed 15-11D CTD lateral. Proposed plan: Prior to drilling activities, screening will be conducted to drift for whipstock, dummy GLVs, and MIT. Slickline will pull the KB packer and E-line will set a 3-1/4" whipstock. Coil will mill window pre-rig. If unable to set the whipstock or mill the window pre-rig, the rig will perform that work. See 15-11D Permit request for complete pre-rig details - A coil tubing drilling sidetrack will be drilled with the Nabors CDR2 or CDR3 rig. The rig will move in and test BOPE. If unable to pre-rig, the rig will set the 3-1/4" whipstock and mill a dual string 2.74" window + 10' of formation. The well will kick off drilling in Zone 4 and lands in Ivishak Zone 1. The lateral will continue in Zone 1 to TD. The proposed sidetrack will be completed with a 3- 1/2" x 2-3/8 13Cr solid liner, cemented in place and selectively perforated post rig (will be perforated with rig if unable to post rig). This completion will completely isolate and abandon the parent Prudhoe Pool perfs. 20 AAC 25.112(i) Variance Request: Hilcorp requests to plug the existing perforations via the liner cement job, packer whipstock and/or liner top packer, if the liner lap pressure test fails as an alternate plug placement. The following describes work planned and is submitted as an attachment to Form 10-403. A schematic diagram of the current wellbore and proposed sidetrack is attached for reference. Pre-Rig Work: (Estimated to start in 11/1/2025) 1. Slickline : Caliper, Dummy GLVS, Pull LTP Packer 2. E-Line : Set 3-1/4 Whipstock top at 10,562 MD at 260° ROHS 3. Coil : Mill 2.74" Window (3-1/4" x 4-1/2" Dual String). (if window not possible, mill w/ rig) 4. Valve Shop : Pre-CTD Tree Work 5. Operations : Remove wellhouse and level pad. Rig Work: (Estimated to start in December 2025) Reference 15-11D Permit submitted in concert with this request for full details. 1. MIRU and test BOPE 250 psi low and 3,500 psi high (MASP 2,438 psi). Give AOGCC 24hr notice prior to BOPE test. 2. Mill 2.74 Dual String 3-1/4 x 4-1/2 Window (if not already done pre-rig) 3. Drill build section: 3.25" OH, ~258' (30 deg DLS planned). 4. Drill production lateral: 3.25" OH, ~2257' (12 deg DLS planned). Swap to KWF for liner. 5. Run 3-1/2 x 2-3/8 13Cr solid liner with BSELRT 6. Pump primary cement job*: 39 bbls, 15.3 ppg Class G, 1.24 (ft3/sk), TOC at TOL. If high losses are encountered during cement job and it is deemed necessary, a cement down squeeze from TOL to loss zone will be performed with the rig or service coil (if performed by service coil see future sundry). 7. Only if not able to do with service coil extended perf post rig Perforate Liner with 1" or 1-1/4" CS Hydril 8. Freeze protect well to a min 2,200' TVD. 9. Close in tree, RDMO. * Alternate plug placement variance request per 20 AAC 25.112(i) Post Rig Work: 1. Valve Shop : Valve & tree work 2. Service Coil : Post rig 500'-1000' EAP - see extended perf procedure attached. 3. Slickline : Set LTP* (if necessary). Set live GLVs. 4. Testing : Portable test separator flowback. Ryan Ciolkosz CC: Well File Drilling Engineer Joe Lastufka 907-244-4357 Well Date Quick Test Sub to Otis - Top of 7" Otis 0.0 ft Distances from top of riser Excluding quick-test sub Top of Annular CL Annular Bottom Annular CL Blind/Shears CL Coiled Tubing Pipe / Slips Kill Line Choke Line CL BHA Pipe / Slip CL Coiled Tubing Pipe / Slips TV1 TV2 T1 T2 Flow Tee Master Master LDS IA OA LDS Ground Level CDR#-AC BOP Schematic CDR Rig's Drip Pan Fill Line Normally Disconnected HP hose to Micromotion LP hose open ended to Flowline (optional) Hydril 7 1/16" Annular Blind/Shear CT Pipe/Slips 2 3/8" Pipe/Slips 2 3/8" Pipe/Slips 7-1/16" 5k Mud Cross CT Pipe/Slips BHA Pipe / Slips nneeeeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeee 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: 10/16/2025 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 SFTP DATA TRANSMITTAL T#20251016 Well API #PTD #Log Date Log Company Log Type AOGCC E-Set# END 2-36 50029220140000 190024 9/17/2025 BAKER SPN T40994 END 2-74 50029237850000 224024 9/22/2025 HALLIBURTON PATCH T40995 KU 12-17 50133205770000 208089 9/23/2025 YELLOWJACKET TEMP-CALIPER T40996 KU 24-7RD 50133203520100 205099 9/24/2025 YELLOWJACKET TEMP-CALIPER T40997 M-25 50733203910000 187086 8/31/2025 YELLOWJACKET CALIPER T40998 MPC-22A 50029224890100 195198 10/4/2025 READ CaliperSurvey T40999 MPF-61 50029225820000 195117 9/27/2025 READ CaliperSurvey T41000 MPU H-16 50029232270000 204190 10/6/2025 HALLIBURTON COILFLAG T41001 NIK SI17-SE2 50629235120000 214041 9/23/2025 HALLIBURTON IPROF T41002 NS-19 50029231220000 202207 9/8/2025 HALLIBURTON COILFLAG T41003 NS-19 50029231220000 202207 9/15/2025 HALLIBURTON COILFLAG T41003 ODSN-26 50703206420000 211121 10/7/2025 HALLIBURTON MFC24 T41004 PBU 01-25A 50029208740100 225056 9/13/2025 BAKER MRPM T41005 PBU 01-25A 50029208740100 225056 9/13/2025 HALLIBURTON RBT-COILFLAG T41005 PBU 01-31A 50029216260100 225070 9/22/2025 BAKER MRPM T41006 PBU 01-31A 50029216260100 225070 9/23/2025 HALLIBURTON RBT-COILFLAG T41006 PBU 05-09A 50029202540100 199014 9/18/2025 READ ArcherVIVID T41007 PBU 07-16A 50029208560100 201153 9/20/2025 HALLIBURTON RBT T41008 PBU 07-23C 50029216350300 225043 7/4/2025 BAKER MRPM T41009 PBU 13-24B 50029207390200 224087 9/18/2025 HALLIBURTON RBT T41010 PBU 15-11C 50029206530300 210163 9/6/2025 HALLIBURTON RBT T41011 PBU 15-49C 50029226510300 215129 9/10/2025 HALLIBURTON RBT T41012 PBU H-07B 50029202420200 225064 9/30/2025 HALLIBURTON RBT-COILFLAG T41013 PBU P19 L1 50029220946000 212056 10/3/2025 HALLIBURTON RBT T41014 PBU S-14A 50029208040100 204071 9/25/2025 HALLIBURTON RBT T41015 PBU V-105 50029230970000 202131 9/30/2025 HALLIBURTON RMT3D T41016 Please include current contact information if different from above. PBU 15-11C 50029206530300 210163 9/6/2025 HALLIBURTON RBT Gavin Gluyas Digitally signed by Gavin Gluyas Date: 2025.10.20 13:17:06 -08'00' 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU 15-11C Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 210-163 50-029-20653-03-00 13250 Conductor Surface Intermediate Liner Liner 8755 80 2433 9594 940 2751 10860 20" 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" x 2-7/8" 8638 29 - 109 27 - 2474 26 - 9620 9445 - 10385 10226 - 12977 29 - 109 27 - 2460 26 - 7769 7664 - 8232 8136 - 8763 12953 470 2670 4760 5410 10530 10860 1490 5380 6870 7240 10160 10380 - 12920 4-1/2" 12.6# L-80 23 - 10212 8229 - 8768 Structural 4-1/2" Baker S-3 Perm , 10155 , 8095 No SSSV 10155 8095 Bo York Operations Manager Jerry Lau Jerry.Lau@hilcorp.com (907) 564-5280 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 0028307 24 - 8128 430 392 44211 37564 16 0 0 0 853 790 N/A 13b. Pools active after work:PRUDHOE OIL STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Gavin Gluyas at 3:47 pm, Sep 23, 2025 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2025.09.23 10:24:09 - 08'00' Bo York (1248) RBDMS JSB 092525 J.Lau 11/5/25 ACTIVITYDATE SUMMARY 9/6/2025 T/I/O=2300/1350/0 Assist SL with CBL/ L&T Load tbg with 200 bbls 100* crude for CBL *** job continued to 09-07-25*** 9/6/2025 ***WELL SI ON ARRIVAL*** DRIFT 20'X2.74" DUMMY WHIPSTOCK TO LTP @ 10219' MD DRIFT 10' X 2.25" DD BAILER TO 10900'SLM ***CONTINUE ON 9/7/2025*** 9/7/2025 ***CONTINUE FROM 9/6/2025*** RAN HALLIBURTON CBL FROM 10800'MD TO 10100'MD LOAD IA W/ CRUDE ATTEMPT TO SET PX PLUG BODY @ 10179' MD BRUSH & FLUSH 3.81" X NIPPLE @ 10179' MD SET 4-1/2" PX-PLUG BODY IN X-NIPPLE @10179'MD ***CONTINUE ON 9/8/2025*** 9/7/2025 ***job continued from 09-06-25*** Pumped 314 bbls crude down IA to load. Pumped 176 bbls crude down TBG. Pumped another 24 bbls crude to assist SL ***job continued to 09-08-25*** 9/8/2025 ***CONTINUE FROM 9/7/2025*** SET PX PRONG IN PLUG BODY @ 10179' MD PERFORM MITT TO 2750 PSI (PASSED) PERFORM CMIT TO 2750 PSI (PASSED) PULLED PX PRONG FROM 10179' MD PULLED 3.81" PLUG BODY FROM X NIPPLE @ 10179' MD ***WELL SI ON DEPARTURE*** 9/8/2025 ***job continued from 09-07-25***MIT-T to 2500 psi PASSED (2750 max) Pressure tbg to 2755 wih 2.5 bbls crude. TBG lost 87 psi in 1st 15 min and 36 psi in 2nd 15 min for a total loss of 123 psi in 30 min test. Bled TP to IA. CMIT TxIA to 2500 Max applied 2750 PASSED Pumped 60 bbls crude down T/IA to achieve test pressure T/IA lost 48/46 psi in 1st 15 min. T/IA lost 22/22 psi in 2nd 15 min. Notified DSO upon departure. FWHP= 240/461/0 9/10/2025 ***WELLSHUT IN ON ARRIVAL ***(PLUGSET/ADPERF) CONTACTDSO,SAFETY MEETING MIRUYELLOWJACKETE-LINE. PTPCE300PSILOW./3000PSIHIGH,FUNCTIONTESTWIRELINEVALVES RIH WITH CH/ 1.44" 1' GG/ 1.69" 4.75' DP/ 1.44" .32' SUB/ 2" 3' GUN 2" 32' BP/ 2" .2' CORRELATE TO SLB MEMORY COMPENSATED NEUTRON LOG DATED 06-JAN- 2011 PERF INTERVAL 10380'-10410' CCL OFFSET TO TOP SHOT 6.5' CCL STOP DEPTH = 10373.5' SHOTS CONFIRMED ON SURFACE RIH WITH CH/ 1.44" 1' GG/ 1.69" 4.75" DP/ 1.44" .32' MSST/ 1.69" 6.92' SLV/ 2.28" .5' CIBP/ 2.28" 1.5' CORRELATE TO SLB MEMORY COMPENSATED NEUTRON LOG DATED 06-JAN- 2011 CIBP SET 10860' CCLTOMIDELEMENT=14.2'CCLSTOPDEPTH=10845.8'TAGAFTERSET ***JOB COMPLETED*** ***WELLS/IONDEPARTURE*** Daily Report of Well Operations PBU 15-11C 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 15-11C Mill 2 CIBPs Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 210-163 50-029-20653-03-00 13250 Conductor Surface Intermediate Liner Liner 8755 80 2433 9594 940 2751 12938 20" 13-3/8" 9-5/8" 7" 3-1/2" x 3-3/16" x 2-7/8" 8767 29 - 109 27 - 2474 26 - 9620 9445 - 10385 10226 - 12977 29 - 109 27 - 2460 26 - 7769 7664 - 8232 8136 - 8763 12953 470 2670 4760 5410 10530 none 1490 5380 6870 7240 10160 11070 - 12920 4-1/2" 12.6# L-80 23 - 10212 8792 - 8768 Structural 4-1/2" Baker S-3 Perm , 10155 , 8095 No SSSV 10155 8095 Bo York Operations Manager Jerry Lau Jerry.Lau@hilcorp.com (907) 564-5280 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 0028307 24 - 8128 225 2129 30995 12205 20 552 0 0 994 277 N/A 13b. Pools active after work:PRUDHOE OIL STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 3:07 pm, Aug 16, 2023 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2023.08.16 12:04:32 -08'00' DSR-8/18/23 RBDMS JSB 081723 WCB 3-12-2024 ACTIVITYDATE SUMMARY 7/16/2023 LRS CTU #2 1.75" Blue Coil, Job Objective: Plug Milling MIRU and RIH with 1-11/16" Yellowjacket milling BHA w/ 2.30" venturi burnshoe. Tag the 2-7/8" CIBP at 11529' CTM / 11515' MD. Start milling on the plug but have issues with the motor. POOH to check tools (circ sub is packed with rocks). Flush the coil with KCL and RBIH with 2.30" venturi burnshoe. ***Job in Progess*** 7/17/2023 LRS CTU #2 1.75" Blue Coil. Job Objective: Mill CIBP Continue RIH w/ 2.30" venturi burnshoe. Milled the CIBP at 11515' and push to the top of the 2nd CIBP @11995' MD. POOH and recover multiple pieces of slips. RIH w/ 2.25" venturi burnshoe to the top of plug at 11995' MD. Milled for ~ 2 hrs with minimal motor work and no stalls. POOH and recovered the core of the first plug. RBIH w/ 2.30" venturi burnshoe. Mill on the plug at 11995' MD. See WHP drop but unable to move the plug down. POOH to perform weekly BOP test. ***Job in Progress*** 7/18/2023 LRS CTU #2 1.75" Blue Coil. Job Objective: Mill CIBP Complete weekly BOP test. RBIH w/ 2.30" venturi burn shoe. Mill the plug at 11998' CTM / 11995' MD and push to ~ 12952' MD. POOH and freeze protect the tubing to 2500' TVD with diesel. RDMO. ***Job Complete*** Daily Report of Well Operations PBU 15-11C Milled the CIBP at 11515' and push to the top of the 2nd CIBP @11995' MD. POOH and recover multiple pieces of slips. RIH w/@ 2.25" venturi burnshoe to the top of plug at 11995' MD. Milled for ~ 2 hrs with minimalg motor work and no stalls. POOH and recovered the core of the first plug. RBIH w/ 2.30" venturi burnshoe. Mill on the plug at 11995' MD j RBIH w/ 2.30" venturi burn shoe. Mill the plug at 11998'y CTM / 11995' MD and push to ~ 12952' MD. POOH STATE OF ALASKA ' •ALASKA OIL AND GAS CONSERVATION COMMI llik REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon ❑ Plug Perforations ® Fracture Stimulate 0 Pull Tubing 0 Operations shutdown ❑ Suspend 0 Perforate ® Other Stimulate 0 Alter Casing 0 Change Approved Program 0 5-el-Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: 5-� C/3 O E 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 210-163 3. Address: P.O.Box 196612 Anchorage, Development p Exploratory 0 AK 99519-6612 Stratigraphic ❑ Service ❑ 6. API Number: 50-029-20653-03-00 7. Property Designation(Lease Number): ADL 0028307 8. Well Name and Number: PBU 15-11C 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 13250 feet Plugs measured 11515/11995 feet •'� '°41 true vertical 8755 feet Junk measured feet 2015 measured 10155 feet Effective Depth: measured 11515 feet Packer true vertical 8800 feet Packer true vertical 8094.11 feet [ GCC :) 0.0 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"91.5#H-40 29-109 29-109 1490 470 Surface 2433 13-3/8"72#L-80 27-2460 27-2460 4930 2670 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 Perforation Depth: Measured depth: 11070-11100 feet 11120-11150 feet 11290-11320 feet 11400-11430 feet 11560-1 1940 feet 12050-12670 feet 12860-12920 feet True vertical depth: 8792-8801 feet feet 8805-8807 feet 8806-8805 feet 8804-8803 feet 8797-8783 feet 8779-8769 feet 8771-8768 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 23-10212 23-8128 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): SCANNED r1 .1 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: 344 30031 0 200 371 Subsequent to operation: 1333 8475 25 180 263 14.Attachments:(required per 20 AAC 25.070.25 071,&25.283) 15.Well Class after work: Daily Report of Well Operations IZI Exploratory ❑ Development RI Service ❑ Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil I3 Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature ,iciA„,...1 (1.6.7,6.— Phone +1 907 564 4424 Date 9/29/16 Form 10-404 Revised 5/2015 VTL 6 b/4-11 G RBDMS tA. OCT 0 3 2016 Submit Original Only AC(o % • • m RN cp o O o o O p CD CD r- co co ,- p M O LC, 00 p O N t ria r- U 0 0 ` 0o0oo�tosT � o D CDODc- N ' NI- ca dr coeur— coo ago Cn 0 0 00 c- co 4, OD 00 O co c- co 00 NT CO co N tt (` N LO N Co c- ,- r- r� CO CO 00 co CO 00 F- O M Cn N 40 O a) Co N 00 CO r� 00 N N N u) Cfl v N a) N N- N- 00 co Cb op CD O 00 ) Nt 00 40 CD coo CO 00 O c- c) c 00 r� V co 6) N c- N O p O O O o N O 03 O o V Q r ,rC) U) CA t CS) N- CO CO pN N Nr. C) co op 0 N N N (7, a 0 0 o O N _ r _ r • M W o \ a O p o O O p7 0 co � °, co0p � °° 'r °J° U _ d *kN *k (nJCO NCO cn _ CO r _ _ CO (�r U 0-, co V N _ Nom _ co, 4, 00 r� N c - EN N 00 (A I n 7 c j (h 6) C7 N O M up Cn O CO CO Nt00 c co V ,_ co V L) N co C N 4,Cy) Nt CA rY cq O J W rn0 Q Q CF- www •NUUw W caQ22 CD 0OrLLtr-trYf' rxec z Z w W W W W W W w m O P t _Z z z z z z D U c(/) z J J J J • Packers and SSV's Attachment PBU 15-11C SW Name Type MD TVD Depscription 15-11C PACKER 9451.87 7667.41 7" Liner Top Packer 15-11C TBG PACKER 10154.71 8094.11 4-1/2" Baker S-3 Perm Packer 15-11C PACKER 10214.56 8129.34 5" Baker ZXP Top Packer 15-11C PACKER 10219.02 8131.97 4-1/2" Baker KB LT Packer 0 • 2 0/ % j ® \ / % a §§ / ± o I - o o \_ [ O k p Z 7 CO E ® o a t 0 ° % I / f0 ƒ » f O § &/ e § I 2 - EI t \ c / t 0 0 \ G2 ao1mak / / f o CO � .§ -1 ce / / \ H. ^ k G c IE \ \ / \ R ,§ c_ = O = \ § / / % f � � / kI i / U) o � � /� / � \ I 0 c% & g Uo � eI m o y 2 2 2 ° E 2 = t « \ n a) 0Qo R ® ® 3 m ' _ ' c I / w O E § ZO / / /cER � § O I) k a 2 L 2 E.c U $ / 't 0 \ I- p () / p O I / _ \\ \ m ,- 2 c -� 5 e ± _ _ _ 0 2E � 0 _ / Na / / o / \ I \ / .- t E @ Li w < m o m = ` c o .g = I \ » _/ C \ 2 f ƒ o \ \ - e r2 / / / / / / / / $ % � � kk 0CI < _ / - / - i / \ i 4- 0- \ 0 > t & w < O I g / O R , / 05 / u (E) \ \ ƒ f 0) � $ CN 0 / / vas2 0 \ \ � fE Z \ ƒ <- Z o016 0)Fri c oNu 0 0 2 w 0 / E 2 / % --i ± 2 / ¥ ƒ / 4 - \ ZGG � H / % , t \ = ¢ 3 = at \ ,- ® � 5 « ® f \ R r 2 o - = O G c£ I § C U c w d R _ o o e = I $ 3 m m / E E y & e o - a / a c a o = a a O \ ± R L e / o / o / 7 $ f = & o / 2 = O E e U \ iA \ 2 \ = § % 2 / .J ® § u) 22 \ \ / wo = Co a � I Z Z u -I G O - F\ % \ Eno @ \ g f $ / / - 2 y / / / / CC / / / - \ k* I-00 - \ \ \ / / \ / / \ f E § f O t 0 -) 20 '2 ; 0 I U o I e k t 0 -'51w ;:-- ; r m w / o e e o e I- / \ \ \ \ n \ b 9 10 / \ r m / N- N- c c c < 1 HFE= 5X7 FMC -HEAD= i SA OTES: WELL ANGLE>70°@11076'.«•'4-112" WEUFTC 15 11 C CHR BW G««"•PREVIOUS ELLBORES NOT SHOWN. ACTUATOR= BAKE IR C VIRAL KB.ESE 71' ), J BF.EiEV= 28.5' 1: 25' 5-1/2"X 4-1/2"XO,ID=3.958" KOP= 2800' 20"CONDUCTOR, — 112' Max Angle= 970 @ 11571' 94#,1440, I I 2094' -14-112"FES X NP,D=3.813" Datum MD= WA D=19.124" GAS LFT MANDRE3-S ST MD ND DEV TYPE VLV LATCH PORE C TE 13-3/8"CSG,72#,L-80,D=12.347" H 2474' 4 3326 3306 18 MMG-M DOME RK 16 01/27/11 3 5501 5000 45 MM3-M SO RK 20 01/27/11 1110 2 7523 6372 44 MMGM DMY RK 0 09/03/04 1 9323 7591 54 MMG-M DMY RK 0 09/03/04 9445' —9-5/8"X 7"BKR LNR TOP FKR Minimum ID =2.380" 10219' wITEBACKSLV,D=7.040" 4-1/2" KB LTP 9463. H 9-518"x 7"LNR HNGR,D=7.020" 7"MLLOUT WINDOW(15-11B) 9620'-9636' I ' 10135' —4-112"HESXMP,D=3.813^ z X 10155' H7'X 4-1/7 BKR S3 FKR,D=3.875' 10179' —{4-1/2"FES X NP,D=3.813" I I 10200' —{4-112"HES XN NIP,MILLED TO 3.80"(12/23/10) 10208' —7"X 5"BKR LTP 8 LNR HGR 4-1/2"LNR,12.6#,13CR-80 VAM TOP, — 10213' / w ff�ACK SLV,ID=4.30" .0152 bpf,D=3.958" 10213' —14-1/2"WLEG,D=3.958" 10219' —14-112"KB LTP,D=2.38" i.r\I 10226' H3.70"DEPLOY ME3NTSLV,D=3.00" 10228' —!5"X 4-1/2"XO,D=3.958" 7"LNR,26#,L-80 BTC-M, H 10385' ` ' 10248' H 3-1/2^OTIS X MP,D=2.812" .0383 bpf,ID=6.276" 3-1/2"LNR,9.2#,L-80 STL, --I 10435'NA , .0087 bpf,D=2.992" WHPSTOCK(12/23/10) —H 10763' 10435' —13-112"X 3-3/16"XO,D=2.80" 4-1/2"LNR,12.6#,L-80 BTC-M, —I —10763' .0152 bpf,ID=3.95&" 4-1/2"MLLOUT WINDOW(15-11C)10763'-10773' FERfORATION SUMMARY 10899' —I3-3116"X 2-7/8"XO,ID=2.38" REF LOG:SLB MCNL ON 01/06/2011 ANGLE AT TOP FERE:F: 70°@ 1107(1 �w 11515' —2-7/8"BKR CIBP Note:Refer to Production DB for historical pert data / (08/25/16) SIZE SPF INTERVAL Opn/Sqz SHOT SQZ 11995' 2-7J8"BKR CEP 2" 6 11070-11100 0 08/26/16 p1 1(11/04/13) 2" 6 11120-11150 0 08/26/16 \ ' A lr e\ 2" 6 11290-11320 0 08/26/16 3-3/16"LNR,6.2#,L-80 TC/, --I 10899' 2" 6 11400-11430 0 08/27/16 .0076 bpf,D=2.80" i��, 2" 6 11560-11940 C 01/07/11 PBTD H 12938' 2" 6 12050-12670 C 01/07/11 2" 6 12860-12920 C 01/07/11 2-7/8"LNR,6.164,L-80 SIL,.0058 bpf,D=2.441" — 12977' DATE REV BY COMMENTS DATE REV BY COMMENT'S PRUDHOE BAY UNIT 10/18/81 PIQ2176 ORIGINAL COMPLETION 08/13/13 CJN/JMD SET PX PLUG(07/21/13) WELL: 15-11C 10/25/87 WWI RWO 08/17/13 PJC DRAWING CORR£CTOINS PERMIT No:"1101630 02/11/99 N4ES CTD SIDETRACK(15-11A) 08/18/13 DLV PJC TRE£CGO(08/16/13) API No: 50-029-20653-03 09/05/04 N2E S SIDETRACK(15-11B) 08/18/13 WSC/PJC PULL PX PLUG(08/17/13) SEC 22,T11N,R14E, 1997'FNL&1450'F t& 01/17/11 NORDIC2 CTD SIDETRACK(15-11C) 09/01/16 JCF/JM) SET CBF ADFE31FS 04/05/11 PJC CONDUCTOR CORRECTION BP Exploration(Alaska) Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. a1Q - 1 (p3 Well History File Identifier Organizing(done) ❑ Two-sided III 111111 III 11111 ❑ Rescan Needed II 11111111 I 111111 RESCAN DIGITAL DATA OVERSIZED (Scannable) Color Items: ❑ Diskettes, No. ❑ Ma . 'eyscale Items: they, No/Type: C N0, I Other Items Scann ble by a Large Scanner ❑ Poor Quality Originals: J OVERSIZED (Non-Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: (Maria) Date: (.� /14 Is, rile l q Project Proofing 1111111111011111 BY: � 1 Date: q / /s/ P Scanning Preparation 4::: x 30 = (00 + D.. = TOTAL PAGES Count does not include cover she ( ) I 116 BY: Maria Date: /s/ Production Scanning IIIIIIIIIIIIIIIIII Stage 1 Page Count from Scanned File: 9 0 (Count does include c er sheet) Page Count Matches Number in Scanning Preparation: YES NO BY: �1- Date: 1.4./ / I9._ /s/ rvi p Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. 111111111111111M ReScanned 1111111111011111 BY: Maria Date: /s/ Comments about this file: Quality Checked III 11111 III1111111 III o I 9 j •c z co "� o ' I— ❑a o f0 M a Q co 8 a m j a a❑ oC a w Co Z Q Z F U a.D O. 0 OL aa� CL O r = w Z a Qa �` o O arn a� N 0 c 0 �` X�LL a 0 2 m '- - Ct0 a 9 Z J 0(0 W O d d a' a L Z 2 2J Q_7 ❑ ❑ N N co E UU (.2.-.1 na N (Haas a gL OU ❑ OaaL Z_ O O J N Z J(n ❑ OW d N ❑ as a ‘- '- z O m m Na _= co =act ❑ ❑ a) m_7 m mQ a @ m m 7 ° a s 20 Oa 0 0 W 0 2 I ❑ as a a 0 a s Q (a o •o a)i o ! o > .- .- a W O 0 0 0 0 0 0 't. 0 0 0 0 0 0 0 0 '0.- N J N V N N N N N N N N N N N N N N N N O) ty a) (O (O CO O a co co M M M M N CO M U) i[) O Qi ❑ 0 N N N N e- .- e- r .- e- . r- .-- r e- e- .- ? J e- e- e- e- CO M V V V V 4 V U) in U) U7 u') E Q = 2 — C C C C C C C C C C C C C C C Y = _ N a) a) a) co co a) N a) (1) N N (1) a) a) a) N a3 Y 0010 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 /�/ J O LL < C co 0 O 0 0 N V O O O O O O O O O ca 0. M in CO 111ID In 0 V (f) U) U) U) N Z j (E r'N N CO N N N N N N N N N Cn 10 Q 0 M M N N N N CO M M M M M N N N N N 05. W RRgr .2 CO (0 N N 0 C.10 0 N N N 0 0 0 0 CO CO C t O O co co Mto t[) O O CO V U) U) (O N- h M M N- N- O Tr CO CO I"- N. N- CO CO co co N. a Co e- .-- O O O O O O O O O O O O O O O W W J U m o Z 8 — C O 7 O Q a) x N J 0•7 m 0 /� 0 o �� 7 0 0 0 0 0 0 LV N c ZI J 2 m 0 0 0 0 0 0 GO O a) 0 ti Ta_ a) a ToLo !� E O. J N N N N N 1 U � 0 COQJ ~ oZ 5 N R. 0 CO CL w � I � 0 o ) u 0 `° I w 0 a Q a47. CL- o Z 0� Q p a w w w > w w Q E 0 J 1 0 Z Z Z Z C .N .N .N .N C ,N ,N ,N 7 7 7 7 O N N N N 0 N N N m .o co (n co a) m 0 > > CU a) m m Z 7To Caca CL CL C C C C 76 TiiF C C C C !C C C C m o o 0 0 0 0 0 c .0 0 0 co co ,0 a) ,0 0 0 r O Z .� N N N V V V E E '70 co V V 'O co Ce ❑ ❑ ❑ ❑ z z J c c C 0 0 c _ c c c N 0) M 0 Z J n O d O) O) N co co 2 +'' N- 00 co CO F 0 a5 E O 0 Tr Tr 4 Z r C W 0 z N N o OrF (E wQ 4 0 _ o Z 2 V p ? U) 0 co N N N ° M0 0 )) C OdQ < J J J J .2Ce w LL N 0 aN J p f71- a y2 G D ❑ a ❑ o0 o a p o) o) 0) CT) n. ❑ O) m JJd H5. OHc W aw J J W aW J J J J W CC W o I 9 / 9 O I a M I' I 11 to 11Z 0 L 4.11 e� U_ 0 1 o 5'IU l o p p co 2 2 l z m m o a a as QO TO �[I s J N CN U z v- to L-15 2 C cr, i s c E ti co m a n E m I.— < co 0 0 0 0 Ce Q co j O Z to Ntii Z co = 5_ ) I L�U/ p co o u) z V Li J chi a o o cam• v i W w I� D > Ua _1 > a m o a N II Za) Q y H Es 7 t2 O 11 cu J11 o. toIT to p o o c a E I1 a N c U U d m p C o Na LL 1 C O d O N n in E N U U 0 03U Q H 0. 2 i—_ z N _ u) n EN- a m m y m c Cn o a u) 'CC a 47. o Q as U E ( m Z ft CL i m co CO Lr) E E c � I E E C Ij 0o 1 0 0 .2 I Iii z E p co''M _ b t j w ct -cc c z 0 N i3drN d a d Z c- o E 0 j co co J N D 6 U) y Z Q tU V 2 cNij Z d ti t` c C U H 0 N T.� E a E d 0 o o m 0 to r c ai E 0 a 2 J J Q 0 QR U 0 RECEIVED STATE OF ALASKA AL 1:A OIL AND GAS CONSERVATION COMM. ,ON DEC 0 9 2013 REPORT OF SUNDRY WELL OPERATIONS AOGCC 1.Operations Abandon U Repair Well Li Plug Perforations U, Perforate U Other Lf Performed: Alter Casing ❑ Pull Tubing0 Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended Well❑ ' 2.Operator 4.Well Class Before Work: 5.Permit to Drill Number: Name: BP Exploration(Alaska),Inc Developments Exploratory ❑ 210-163-0 ' 3.Address: P.O.Box 196612 Stratigraphic❑ Service ❑ 6.API Number Anchorage,AK 99519-6612 50-029-20653-03-00 • 7.Property Designation(Lease Number): 8.Well Name and Number: ADL0028307 1 AOLijOtg b(o PBU 15-11C ' 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 13250 feet Plugs measured 11995 feet true vertical 8754.67 feet Junk measured None feet Effective Depth measured 11995 feet Packer measured See Attachment feet true vertical 8782.34 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20"94#H-40 29-109 29-109 1530 520 Surface 2433 13-3/8"72#L-80 28-2461 28-2460.95 4930 2670 Intermediate None None None None None None Production 9593 9-5/8"47#L-80 27-9620 27-7768.86 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 11560-11940 feet 12050-12670 feet 12860-12920 feet True Vertical depth 8797.17-8782.76 feet 8778.89-8769.08 feet 8770.84-8768.43 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 24-10213 24-8128.42 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: 440 28705 0 0 1190 Subsequent to operation: 266 19535 11 0 1348 14.Attachments: 15.Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development 0• Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work: Oil Q • Gas U WDSPI{J GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUCJ 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.Catron(c7BP.Com Printed Name Garry Catron Title PDC PE Signature ,k O CI L- . Phone 564-4424 Date 12/9/2013 1/1--f RBD A± DEC 16 26 J// 7/ 1 Form 10-404 Revised 10/2012 //y/j� Submit Original Only a Y C i U d 0 CD ei V" N C 0_! IX w 0°- z J; p(i) JY 'a; w Y Y Y (6 Q CO N m m CO CV (V (V 4 NI- V 0) co CD of 0 't CDN Ce) N M1— CDco O ' N r- co co 9 O CI) Q C co to L C„) ►n � (A r r Y 2 Tr O O O V a O. >.0000>+000U I- < < < < aaaa a) E U U U U Z �- � � r- �r) Lnid) u) CD m ip cy• c,• N O tr) co p O 0 to ti Oa N U 7o000Q000 CD N v cp co 0)) co CO CO �O '- CO CO v CO M to M CO CO If) N CO CO CO CO O - p x M N CO CO CO Ch Lo CO CO CO CO N N CO N t` N- CO CO CO cO 00 CO f. CO CO N O) 0) Ochtpr 100 .1. N CO N Ch ti N N N CO — — CO • 00 CO CO tf) Ch tf) r- O M N— O O O NCC N N O 0 2 < M C co o) rn N N O O O CV N N CO _ 0 J ▪ QO opo co p oo � OD 100 °DU C i CO J JItk Cu JpMCO N4 •N N *k CNj CO NCO r O (O - V ON N C i M = N i Ch chNco co co t CA co C copLo Tr tO " O in d o) tp N N O N z O O caw HD 0UC� to O CCCLCLCCO LL z v z w w w w O CLm O zzzzQ U J J J J d (/) • • \ $ ± 2 / / / E _ a( ® E $ ± w 2 -0 a_ Eca o co pI L1) Lb cm aL cowc \ ) m = W@ ƒ ƒ 3 0_ eL I $ 5 I e \2 ± _ \ / / E 0 t : $ E e \ o CO / a * _ o ° ® N = 2 CO / 0 § \ eL m e = _o 0? -) \ m - m 0 oe - I_ - / % ƒ ƒ 2/ ¢ 2 $ U) } \ § \ z \ 3 -0 b o 4- 2 4- 0 2 Z 2 » % ƒ E $ 2 \ % \ 7 % Cr) CT) 2 - 2 a) c a c 2 S b / / 2 \ 7 £ 12 ? ° ? N 9 = 5 / O co 0 0 7 0 6 N a * » y ± ± 0 0 0 ± _ IJ- -0 _ - e E b O 2 E i o * I E § ƒ % ± - v- / I 0 n a_ E - -R 2 c G % R o 2 0 t d / 2 \ 2 f E. = o - _ . / G 10 0 04'. U 0 0 f a) o A c o r A o _I < ± _ ± 5 < -E < 6- 10_ A o o # 2 A D E = R = R E e E o ® 2 ^ s ® � E ^ o « CO_ 0 - 0 I < 14 / _I m m y - co O. 0 / / / 0 / G \ G -o d 0 ® � 0 d 0 2 1121 ± m ± mol [ 9 \ \ / 7 . 0 \ / 7 \ EE / / \ / / & E / @ . 2 MI 0_ A < o < / 2 O / E ƒ « J ƒ a E A - n : a - / A / / _ 6- cc — o- $ 5 I / ® e / f ,- a ® - { O 1:13, / y / ? / u_ 3 / u_ E ° E ° 2 / U- 0 0 2 \ 2 / 2 c c o E o - e = m \ \ / ./ 0 .- ° m 2 / / ? D © D 0 / / ~ \ ƒ ~ 0 ® eft / \ aa± G / \ E * » e e g = o = # c E 3Lo % % / iv / - f / Q02f7SI002 0 o _ ® ® co m o c _ . as _ E _ ® 0 2 0 0 \ 0 ƒ ® f « ® f@ a) 2. 0 0 k a o o # 0 o HO - CC - 0 \ k0 \ / / / / C) VVHO / O -) 2v < R < R U 20 -) 2 ‘-- 2 ..;_- v v U e I & v v 0 CLv co co CO CO CO CO CO N N N N N N N 2 9 CO 99 7 f TREE=" 5X7 FMC " D 15-11C SAFE CHRONic IBG"' _PREVIOUS WELLBORES1NOT SHOWN.076'. " Ai CTUATOR= BAKER C !VIAL KB.E LE _.__. 71' L. J ' BF.ELEV= 28.5' L 25' -15-1/2"X 4-1/2'XO,D=3.958" KOP= 2800' 20"CONDUCTOR, -i 112' Max Angle= 97°@ 11571' 94#,1+40, I I 2094' -{4-112"HES X NP,D=3.813" Datum M)= WA D=19.124" - GAS UFT MANDRELS ST MD TVD DEV TYPE VLV LATCH FORT DATE 13-3/8"CSG,72#,L-80,D 12.347" 2474' I..A 4 3326 3306 18 M 4G-M DOME RK 16 01/27/11 3 5501 5000 45 MING-M SO RK 20 01/27/11 2 7523 6372 44 MMG M OW RK 0 09/03/04 1 9323 7591 54 MMGOW R -M DK 0 09/03/04 9445' 19-5/8"X 7"BKR LNR TOP PKR Minimum ID =2.380" @ 10219" w/TFE6ACKSLV,D=7.040• 4-1/2" KB LTP - 9463' -19-5/8"X 7'LNR HNGR,13=7.020" 7"MLLOUT WINDOW(15-11 B) 9620'-9636' ' 10135' -14-1/2"HES X NP,D=3.813" Z g 10155' HT X 4-1/2"BKR S3 PKR,13=3.875" ' ' 10179' -14-1/2"HES X Nom,D=3.813" ' 10200' -f4-1/2•HES XN NP,MLLED TO 3.80'(12/23/10) 10208' 17"X 5"BKR LTP&LNR HGR 4-1/2"LNC 12.6#,13CR40 VAM TOP, -1 10213' w rnEBActc SL V,13=4.30" .0152 bpf,D=3.958" 10213' -14-1/2"WLEG,D=3.958" \ 10219' -14-1/2"KB LTP,D=2.38" 10226' H3.70"DEFLOYPU'1TSLV,D=3.00" 10228' -15"X 4-1/2"XO,D=3.958" II 10248' -13-1/2"OTIS X NP,D=2.812" 7"LNR,26#,L-80 BTC-M, -1 10385' LA .0383 bpi,ID=6.276" , 3-1/2'LNR,9.2#,L-80 STL, -1 10435' .0087 bpf,D=2.992" VHPSTOCK(12123/10) -j 10763' / 10435' H 3-1/2"X 3-3/16•XO,D=2.80" 4-1/2"LNR, 12.6#,L-80 BTC-M, - -10763' .0152 bpf,ID=3.958" 4-1/2"MLLOUT WNDOW(15-11C)10763'-10773' PERFORATION SUMMARY REF LOG:SLB PAM_ON 01/06/2011 10899' -13-3/16"X 2-7/8"XO,D=2.38" ANGLE AT TOP PE RE: 96°@ 11560' 11995' - Note:Refer to Production DB for historical pert data ` (11/04/13)/0"BKR CFBP SIZE SPF NTER1/AL Opn/Sqz SHOT SQZ \ *,a.- 2" 6 11560-11940 0 01/07/11 3-3/16"LNR,6.2#,L-80 Tal, - 10899' ` 2" 6 12050-12670 C 01/07/11 .0076 bpf,D=2.80' %i. 2" 6 12860- 12920 C 01/07/11 MID - 12938' 2-7/8'LNR,6.16#,L-80 STL,.0058 bpf,0=2.441• -{ 1297T DATE REV BY CONGA TS DATE REV BY COMMENTS PRUDHOE BAY UNT 10/18/81 PKR 176 ORIGINAL COMPLETION 08/13/13 CJWJMD SET PX RUG(07/21/13) VVELL 15-11C 10/25187 WWI RWO 08/17/13 PJC DRAWING CORRE ;TONS PERMIT No: 2101630 02/11/99 N4PS CTD SIDETRACK(15-11A) 08/18/13 DU/PJC TREE GO(08/16/13) AR No: 50-029-20653-03 09/05/04 N2ES SIDETRACK(15-11B) 08/18/13 WSC/PJC PULL PX PLUG(08/17/13) SEC22,T11N,R14E,1997'FNL&1450'FWL 01/17/11 NORDIC2 CTD SIDETRACK(15-11C) 04/05/11 PJC CONDUCTOR CORRECTION _ BP Exploration(Alaska) bp Date 05-12-2011 Transmittal Number:93192 BPXA WELL DATA TRANSMITTAL Enclosed are the materials listed below. (BPXA FIELD LOG DATA) If you have any questions, please contact Doug Dortch at the PDC at 564-4973 Delivery Contents 1 CD-ROM Containing Field Log Data & Electronic Log Prints for the following wells: 15-11CPB1 ato-'(D3 0lel low 18-13C (410-(14° A-39A a t O- 1'55 11-1(o F-28B alp-I(o g Jll009 S-01 C a-JO—r L/'-a 1416;3,C) S-18B 'Qto-oat igc•3 S-129 -129PB1 j S-129P62 WO-43a /4(4'3'9 ' �.i rig i C') Ple se ,and Return one copy of this transmittal. Thank You, Doug Dortch Petrotechnical Data Center cos.. Attn: State of Alaska -AOGCC Attn: Christine Shartzer 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 Petrotechnical Data Center LR2-1 900 E.Benson Blvd.PO Box 196612 Anchorage,AK 99519-6612 BAKER HUGHES West 795 East 94th Avenue Anchorage,AK 99515 Tel: 907-267-6612 Fax: 907-267-6623 May 12, 2011 Attention: Christine Mahnken State of Alaska-AOGCC 333 West 7th Avenue Suite 100 Anchorage,AK 99501 Subject: Final Log Distribution—BP Exploration (Alaska), Inc. 15-11CPB1 Prudhoe Bay Unit North Slope Borough,AK API#: 50-029-20653-70 Rig: Nordic-2 SO#: 3556330 Please find enclosed the following final deliverables for the above well: 1 Set of Color Prints (to follow) 1 Survey Report 1 Data CD We sincerely appreciate the opportunity to provide our products and services to you and look forward to working with you in the future. Should you have any questions, you can contact me at(907) 267-3420. Regards, Jim Woods Geoscience Advisor Enclosures JW/dh cP(0'1(603 hi(03-3 INTEQ Log & Data Transmittal Form To: State of Alaska -AOGCC 333 W. 7th Ave. Suite 100 Anchorage,Alaska 99501 Attention: Christine Mahnken Reference: 15-11C Contains the following: 1 LDWG Compact Disc �. (Includes Graphic Image files) 1 LDWG lister summary 1 color print—GR Directional Measured Depth Log (to follow) { 1 color print—MPR/Directional TVD Log (to follow) 1 color print—MPR/Directional Measured Depth Log (to follow) 3 � { LAC Job#: 3556330 Sent by: Lauren Veronie Date: 4/12/, , Received by: Date: PLEASE ACKNOWLEDGE RECEIPT BY 11NIa G AndritAle OR FAXING YOUR COPY FAX: (907) 267-6623 _ Baker Hughes INTEQ `b -163 (/Fa'I 7260 Homer Drive Anchorage,Alaska 99518 NIMES Direct:(907)267-6612 a.0`5 d INTEQ FAX:(907)267-6623 • BAKER HUJGHES Baker Atlas PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION(ALASKA)INC COUNTY NORTH SLOPE BOROUGH WELL NAME 15-1 IC STATE ALASKA FIELD PRUDHOE BAY UNIT DATE 4/12/2011 THIS DISTRIBUTION LIST AUTHORIZED BY: LAUREN VERONIE SO#:3556330 Copies of Copies Digital Copies of Copies Digital Each Log of Film Data Each Log of Film Data 2 Company BP EXPLORATION(ALASKA)INC 1 Company DNR-DIVISION OF OIL&GAS Person PETROTECHNICAL DATA CENTER Person CORAZON MANAOIS Address LR2-I Address 550 WEST 7TH AVE 900 E BENSON BLVD. SUITE 800 ANCHORAGE,AK 99508 ANCHORAGE,AK 99501 1 Company EXXON MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082A HOUSTON,TX 77002 1 Company STATE OF ALASKA-AOGCC Company Person CHRISTINE MAHNKEN Person Address 333 W.7TH AVE Address SUITE 100 ANCHORAGE,AK 99501 Company Company Person Person Address Address Company Company Person Person Address Address Data Disseminated By:BAKER ATLAS-PDC 17015 Aldine Westfield,Houston,Texas 77073 This Distribution List Completed By: RECEIVED a/U --f(23 • Alaska 08 Cias Ow& 0 nvmv n>,N„a 81-or �,�, Nn I moan ZO 0m WW m m o m n 0 = ail'2(� o_—CC CC ? N j 9) -4,P0 —,7, i. .Z j N < S F m! and D O 2 NN OAN NtJ11 s 330 am m * nm mn o m N n^r y—nno PI o � r �w� .°1F.m m g � p n m m a n r A ow N m N m mmmmmmmmmmmmm s 9 >0000p0p30000rn w 1 L m m m o 0 N=0 P a m 0 0 D O b c CO 000s0000c$000 . -09 N JY m O m N N N m-..-, Z_ Z3333ZZa TIE9N1 O 0000000rOmOnm n ZZZZZZrr Om033 Z rrrrrrs 000-19 O -1*C 1 C P U OniZy m N(=7I 0 Z",��,J Z CiOA.),Z,A0",p Z 1 1 1 1 1.4•21201-01m o v��V`,`p•�,m m m—C o m 0 L ,, r11 CrASbP n m 1 1 n m fQ ,Q.0 , V C. -..........°-.0000000 N 0 N 0B-.41 0 0 W 0;30 y 0000 li >Nn �QJ °';': �' r Q] 0 0 m 4,5 y1 `+�•' C a N m S d c-Ain • O il-C. e x m tv • a w n a N n w 7 a m 3 F- F w m O o o Cl m g, Ny=n m »^ ;g7. man D S F 80 70nw 'nm z m a m u 71 REP SP 0 3 d0 9 oN N • STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1 a. Well Status: ®Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended 1 b. Well Class: I 20AAC 25.105 20AAC 25.110 ® Development 0 Exploratory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One 0 Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska)Inc. 01/17/2011 210-163 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 12/24/2010 50-029-20653-03-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 01/02/2011 PBU 15-11C 1999'FNL,3829'FEL,SEC.22,T11 N, R14E, UMg. KB(ft above MSL): 57.60' 15.Field/Pool(s): Top of Productive Horizon: 4601'FNL, 759'FWL,SEC.23,T11 N, R14E, UM GL(ft above MSL): 29.14' Prudhoe Bay Field/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool 2610'FNL, 1242'FWL, SEC.23,T11 N, R14E, UM 12938' 8767' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 677402 y- 5959518 Zone- ASP4 13250' 8755' ADL 028306&028307 TPI: x- 682055 y- 5957024 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 682488 y- 5959027 Zone- ASP4 None 18.Directional Survey: ®Yes 0 No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900'(Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/VD: MWD DIR, GR, RES, GR/CCL/CNL 10763' 8546' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE TOP BOTTOM ToP BOTTOM SIZE CEMENTING RECORD PULLED 20" 94# H-40 Surface 112' Surface 112' 32" 300 sx Permafrost 13-3/8" 72# L-80 Surface 2474' Surface 2474' 17-1/2" 2400 sx Fondu.400 sx PF'C' 9-5/8" 47# L-so/soo-9s Surface 9620' Surface 7769' 12-1/4" 250 sx Class'G'.300 sx PF'C' 7" 26# L-80 9445' 10385' 7664' 8232' 8-1/2" 211 sx Class'G' 4-1/2" 12.6# L-80 10208' 10763' 8125' 8546' 6-1/8" 339 sx Class'G' . 3.1/2'x 3.3/16'x 24/e• 9.31,6.26,6.161 L-80 10219' 12977' 8132' Q763' 4-1/8"x 3-3/4" 128 sx Class'G' 24. Open to production or injection? IS Yes 0 No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) _ PACKER SET(MD/ND� (MD+TVD of Top&Bottom;Perforation Size and Number): 2"Gun Diameter,6 spf 4-1/2", 12.6#, 13Cr80 10213' 10155'/8094' MD TVD MD ND 11560'-11940' 8797'-8783' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 12050'-12670' 8779'-8769' 12860'-12920' 8771'-8768' DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 2500' Freeze Protect w/45 Bbls of McOH 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): February 17,2011 Flowing Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 2/17/2011 8 Test Period ♦ 608 351 1 176 577 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 942 860 24-Hour Rate 4 1,823 1,052 4 Not Available 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No Sidewall Core(s)Acquired? 0 Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and lab r t I .:=r 20 AAC 250.071. ,wykl -..ea , R '�C X19 ! ill A i None �� 3. , I:EB 24 201 RBDMS FEB 2 41011 E ____' *Aka Oil&Gas Cans.C�� Form 10-407 Revised 12/2009 CONTINUED ON REVERSSE�� A. Submit Original Only ti 29;GEOLOGIC MARKERS(List all formations and m, encountered): 30. iRMATION TESTS NAME MD ND Well Tested? 0 Yes ®No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. 23SB/Zone 2B 10837' 8616' None 22TS 10890' 8667' 21TS/Zone 2A 10960' 8727' Zone 1B 11016' 8766' TDF/Zone 1A 11110' 8803' Formation at Total Depth(Name): TDF/Zone 1A 11110' 8803' 31.List of Attachments: 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. D Signed: Terrie Hubble /�ejo ,� (�(,�� Title: Drilling Technologist Date: O� /,I PBU 15-11C 210-163 Prepared By Name/Number. Terris Hubble, 564-4628/ ( Well Number Permit No./Approval No. Drilling Engineer: Cody Rymut,564-5452 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 MC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 MC 25.071. Form 10-407 Revised 12/2009 Submit Original Only North America -ALASKA- BP Page 1 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project: Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI: 500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (ft) 12/20/2010 22:00 - 00:00 2.00 MOB P PRE CONTINUED FROM 15-21A CON REPORT DATED 12/20/2010. PJSM AFTER BACKING OFF WELL 15-21A FOR MOVE TO WELL 15-11C. MOBILISE RIG TO WELL 15-11C. 12/21/2010 00:00 - 04:00 4.00 MOB N WAIT PRE CONTINUED FROM WELL 15-21A CON REPORT DATED 12/20/2010. SPOTTED RIG ON LOCATION IN PREPARATION TO BACK OVER WELL. SET DOWN AND WAIT FOR BPV CREW TO FINISH ON NORDIC 1. WHILE WAITING FOR BPV CREW CLEAN OUT HP FILTERS,GREASE CHOKE MANIFOLD, AND PERFORM OTHER GENERAL RIG MAINTENANCE. 1 01:15-BPV CREW ON LOCATION. R/U TO SET BPV IN WELL 15-11B SO RIG CAN BACK OVER. 04:00-BPV SET AND CREW LEAVING LOCATION. 04:00 - 04:30 0.50 MOB P PRE PLACE T-MATS AND BERM AROUND CELLAR LAND PREP TO BACK RIG OVER WELL. 04:30 - 05:30 1.00 MOB N WAIT PRE j WAIT TO BACK RIG OVER WELL UNTIL !NORDIC FIELD SUPT. IS DONE ASSISTING NORDIC 1. PJSM, SET HERCULITE&RIG 'MATS I 05:30 - 07:00 1.50 MOB P PRE PJSM.PULL RIG OVER WELL 07:00 - 07:30 0.50 MOB P PRE INSTALL IiANDI-BERM,CREW C/O, LEVEL RIG. 07:30 11:00 3.50 MOB I P PRE NU BOP STACK 11:00 - 17:30 6.50 BOPSUR P PRE PRESSURE TEST BOP'S AS PER AOGCC REGS&PROGRAM, and PERMIT TO DRILL. TEST WITNESS WAIVED BY J.JONES, AOGCC. DATA TRANSMITTED TO AOGCC BY EMAIL. 1T30 - 18:30 1.00 RIGU P PRE PJSM FOR PT INNER REEL VALVE AND PACK-OFF. -P/U INJECTOR AND STAB ON WELL. 1-PT INNER REEL VALVE AND PACK-OFF TO 250/3500 PSI. CHARTED-GOOD. -BLOW COIL BACK W/AIR. 18:30 - 20:00 1.50 RIGU P PRE PJSM FOR CUTTING COIL. I-POP OFF INJECTOR AND PREP FLOOR FOR CUTTING COIL. -BEGIN CUTTING COIL. *BPV CREW ARRIVED ON LOCATION AT 19:45. Printed 2/23/2011 11 37 27AM r North America -ALASKA- BP Page 2 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:OOAM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) , (ft) 20:00 - 00:00 4.00 RIGU P WEXIT PJSM W/BPV CREW. -P/U TOOLS AND LUBRICATOR. USE DSM LOADER W/STINGER TO BRING LUBRICATOR UP BEAVER SLIDE. -R/U LUBRICATOR AND PT TO 250/3500 PSI. -PULL BPV AND L/D LUBRICATOR. OFF-LOAD SAME. 12/22/2010 00:00 - 01:30 1.50 RIGU P WEXIT P/U INJECTOR.PUMP SLACK FORWARD TO FIND E-LINE. -TEST AND BOOT E-LINE. -BLOW BACK COIL. DRESS COIL AND HEAD UP CTC.PULL TEST CTC TO 40K. 01:30 - 02:30 1.00 RIGU P WEXIT RE-HEAD BAKER AND TEST E-LINE. PT DFCV'S TO 250/3500 PSI-WILL NOT HOLD AT LOW PSI. BOT ARRIVED ON LOCATION AT 02:30. 02:30 - 04:00 1.50 RIGU N SFAL WEXIT INSTALL NEW CHECK VALVES AND RE-TEST. AT LOW PRESSURE STILL LEAKS OFF. BREAK APART AND PULL CHECK VALVES AND TROUBLESHOOT. INSERT NEW CHECK VALVES AND REPLACE 0-RINGS. STILL BLEEDS OFF AT LOW PRESSURE. DECIDE TO MOVE ON TO KILLING WELL WHILE BHI TROUBLESHOOTS ISSUE. 04:00 - 04:30 0.50 RIGU P WEXIT STAND BACK INJ.AND CLEAR FLOOR IN PREP FOR BULLHEAD KILL. INSTALL TREE CAP. 04:30 - 04:45 0.25 RIGU P WEXIT PJSM FOR BULLHEAD KILLING WELL. LINE UP AND OPEN UP TO THE WELL.WELL IS ON A VAC. PUMP 5 BBL McOH SPEAR FOLLOWED BY 'KCL. - AT 20 BBLS AWAY AT 1.6 BPM HAVE 1900 PSI WHP. 104:45-CALL ODE AND WTL AND VERIFY A 'NOZZLE RUN TO KILL WELL FROM BOTTOM 'IS ACCEPTABLE. 05:00 - 06:00 1.00 j RIGU N SFAL WEXIT P/U INJECTOR.REMOVE UQC AND RE-HEAD BAKER IN PREP TO PT CHECKS. 06:00 06:30 0.50 j RIGU P WEXIT CREW CHANGE. DISCUSS OPERATIONE. MAKE RIG ROUNDS AND CHECKS. CONTINUE TO PREP BHA FOR NOZZLE RUN. 06:30 - 10:30 4.00 KILLW P WEXIT !HOLD PJSM. DISCUSS KILL OPERATION. 'GET ON WELL. TAKING FLUID. IRIH. CIRC DOWN COIL. 13400 PSI AT 2.65 BPM IN. NOT ENOUGH TO 'KILL WELL. REDUCE RATE AND RIH. PARK COIL AT 11,100'. 10:30 - 12:00 1.50 KILLW P WEXIT BULL HEAD 15 BBLS KCL. 3050 PSI AT 0.65 1 I BPM. DISPLACE WELL WITH KCL. TAKE RTNS THROUGH CHOKE, OUTSIDE. HOLD 250-300 PSI WHP. CIRC AT 2.55 BPM AT 1900 PSI. PUMP 150 BBLS. ANN VOL IS 108 BBLS. BLEED OFF WHP. FLOW CHECK WELL. NO FLOW. Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 3 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 1X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay 1 Site: PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12.00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 15:00 3.00 KILLW P WEXIT CIRCULATE OUT OF HOLE.290 PSI AT 1.0 BBL IN. MAINTAIN KILL SHEET. 15:00 - 15:30 0.50 KILLW P WEXIT AT SURFACE. GET OFF WELL. UNSTAB COIL. LD NOZZLE BHA. 15:30 - 16:00 0.50 STWHIP P WEXIT MU BTT WHIPSTOCK ASSY ON INTEQ BHA. STAB COIL. TEST TOOLS. LOW VOLTAGE FOUND. 16:00 - 19:30 3.50 STWHIP N SFAL WEXIT GET OFF WELL. TROUBLE SHOOT TOOLS AND LINE. BREAK OFF UQC SLEEVE AND ELINE HAD PULLED OUT OF ANCHOR. PUMP SLACK AND CUT COIL. RE-HEAD BAKER. PT UQC AND CHECKS. 19:30 - 22:00 2.50 STWHIP N SFAL WEXIT PJSM FOR P/U BTT WHIPSTOCK BHA. STAB COIL.TEST TOOLS-GOOD. 22:00 - 23:00 1.00 STWHIP P WEXIT START TRIP SHEET AND RIH W/BTT WHIPSTOCKASSYTHRU OPEN EDC. RIH AT 65 FPM AT 1.4 BPM AND 680 PSI. SLOWDOWN RUNNING THRU JEWELRY. 23:00 - 00:00 1.00 STWHIP -P WEXIT LOG TIE-IN STARTING AT 10,080 FT TO 10,200 FT. MAKE-16.5 FT CORRECTION. LOSING—5 BBUHR. 12/23/2010 - STWHIP P WEXIT 00:00 - 01:15 1.25 STWHIP P - WEXIT CONTINUED FROM RON REPORT DATED 12/22/2010. CONTINUE RIH TO 10,360 FT. NOTHING SEEN GOING PAST XN NIPPLE AT 10200 FT. _ LOG TIE-IN AND MAKE-29 FT CORRECTION. 01:15 - 01:45 0.50 STWHIP P WEXIT CONTINUE IN HOLE TO SETTING DEPTH. BOTTOM OF WHIPSTOCK AT 10778 FT. CLOSE EDC. PRESSURE UP AND OBSERVE SHEAR AT 1100 PSI. TOP OF WHIPSTOCK AT 10762 FT.SET 20 DEG LEFT OF LS. 01:45 - 02:00 0.25 STWHIP P WEXIT SET 4K DOWN ON PACKER TO VERIFY SET. PICK UP CLEAN AT 36K UP WT. PUH ABOVE WHIPSTOCK AND PARK COIL. 02:00 - 04:30 2.50 STWHIP P WEXIT OPEN EDC AND SWAP WELL OVER TO GEOVIS. 04:30 - 06:00 1.50 STWHIP P WEXIT START TRIP SHEET AND POOH W/ WHIPSTOCK SETTI NG BHA. 06:00 - 06:30 0.50 STWHIP P WEXIT CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND ROUNDS. CONTINUE TO POOH WITH SETTING BHA. HOLD BHA PJSM. 06:30 - 07:30 1.00 STWHIP P WEXIT AT SURFACE. GET OFF WELL. UNSTAB COIL. LD BTT TOOLS. Printed 2/23/2011 11:37:27AM North America-ALASKA- BP Page 4 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay fiSite:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI: 500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:30 - 09:15 1.75 STWHIP P WEXIT PJSM TO PRESS TEST PACKER AND LINER LAP. TEST 4-1/2"TBG X BTT PACKER TO 250 PSI FOR 5 MIN. NO LOSS. PT 4-1/2"TBG TO 2366 PSI.W/8.6 PPG GEOVIS FLUID. 0810:2366 PSI 0818:2347 0823:2340 0834:2329 0840:2321 TEST CHARTED ON PAPER AND DIGITALLY ON NORDIC SYSTEM. TEST PASSED. 09:15 - 10:45 1.50 STWHIP P WEXIT PJSM TO DISCUSS HANDLING BHA. MU 3.8"MILL W/STRING REAMER ON INTEQ 2-7/8"XTREME. INCL 2 JTS PH6 STAB COIL. TEST TOOLS. GET ON WELL. 10:45 - 13:30 2.75 STWHIP P WEXIT RUN IN HOLE. INJECTOR SURGING. INSPECT AND CHECK OUT SAME. NTF. } � CONTINUE IN HOLE. 13:30 - 15:45 2.25 STWHIP P WEXIT TAG XN NIPPLE AT 10,223'. PU AND GET FS:2325 PSI AT 2.52 BPM IN/OUT. TIME MILL AHEAD VERY SLOWLY. 15:45 - 17:30 1.75 STWHIP P WEXIT GAS ALARM SOUNDED WHILE MILLING. CLOSE HCR. SIWHP:220 PSI. PVT:348 BBLS HOLD PJSM. RU TO TAKE RTNS TO TIGER TANK. CIRC AT 1450 PSI AT 1.0 BPM(SLOW CIRC RATE). TAKE RTNS TO TIGER. I BLEED OFF WHP TO 85 PSI. CONTINUE TO CIRC TO TIGER. !RTN DENSITY AND RATE SLOWLY !RETURNING TO NOMINAL. (8.6 PPG) ;RETURNS BACK INSIDE. CONTINUE TO (CIRCULATE. 17:30 - 18:00 0.50 —t STWHIP , P fi WEXIT PRESSURE TEST TBG TO 2400 PSI. HELD SOLID. 18:00 - 18:45 0.75 STWHIP P ! WEXIT ICREW CHANGE OUT.MAKE RIG ROUNDS AND CHECKS. DISCUSS CURRENT OPS. DRIFT THRU XN NIPPLE.SEE SLIGHT MW COMING UP THRU ON FIRST PASS. 'DRIFT BACK DOWN AND UP CLEAN BOTH WAYS. RIH TO MILL WINDOW. 18:45 - 19:15 0.50 STWHIP P WEXIT LOG TIE-IN AND MAKE-45'CORRECTION. 19:15 - 21:30 ! 2.25 STWHIP P WEXIT CONTINUE RIH TO BEGIN TIME MILLING WINDOW. TAG WHIPSTOCK AT 10763.6'. P/U CLEAN. 2380 PSI FS AT 2.54 BPM.TAG AT 10763.2'W/PUMPS ON. INITIATE TIME MILLING AT 1 FT/HR TO START –` PATTERN. 6•t 1 G 150-250 PSI MW. 1-2K#W O B. MILL TO 10764.9'. / Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 5 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:30 - 00:00 2.50 STWHIP P WEXIT MILL AHEAD FROM 10764.9'. 200-250 PSI MW.2.5-3.0K#DHWOB. HS IF_ SEEINGINCREASED AMOUNT OF SAND IN RETURNS OVER SHAKER ALONG WITH METAL. MILL TO 10766.5'. BOTTOMS UP FROM 10766'SHOWS 20% SAND AND 8%METAL. 12/24/2010 00:00 - 02:00 2.00 STWHIP P WEXIT CONTINUED FROM RON REPORT DATED 12/23/2010. CONTINUE TIME MILLING WINDOW FROM 10766.5'. 150-250 PSI MW. 1.5-2K#DHWOB. 400-450 PSI DIFF. PUMP LO-VIS PILL TO SWEEP HOLE.SEE INCREASED AMOUNT OF SAND COMING UP W/SWEEP. MILL TO 10768.8'. 02:00 - 04:30 2.50 STWHIP P WEXIT MILL AHEAD FROM 10768.8'. STARTING TO TAKE MORE WT. 150-200 PSI MW. 2-2.5K#WOB. MILL TO 10770.4'(MID-POINT) 04:30 - 06:00 1.50 STWHIP P WEXIT CONTINUE MILLING FROM 10770.4'. 200-250 PSI MW. 2.5K#WOB. 06:00 - 06:30 0.50 STWHIP P WEXIT CREW CHANGE. DISCUSS OPS AND RIG CONDITION. MAKE RIG ROUNDS AND CHECKS. CONTINUE TO MILL WINDOW AT 10,772'. 06:30 - 10:00 3.50 STWHIP P WEXIT MILL AHEAD AT 10,772.4'. 2501 PSI AT 2.53 BPM IN/OUT. 2.03 K#DHWOB IA/OA/PVT:299 PSI/151 PSI/417 BBLS 10:00 - 13:15 3.25 STWHIP P WEXIT CONTINUE TO MILL AHEAD FROM 10780'. 2520 PSI FS AT 2.53 BPM IN/OUT. 150-200 PSI MTR WRK.4.32 K#DHWOB. TD RAT HOLE AT 10783'. REAM AND BACK REAM WINDOW AREA 3 'TIMES. DRY DRIFT. WINDOW SMOOTH. 13:15 - 15:00 1.75 STWHIP P WEXIT 'OPEN EDC.CIRCULATE OUT OF HOLE. 3.13 BPM AT 2395 PSI. LOTS OF SAND AND METAL IN RTNS. BYPASS AND PURGE MM OUT. HOLD PJSM NEAR SURFACE. 15:00 - 15:30 0.50 STWHIP P I WEXIT AT SURFACE. GET OFF WELL. UNSTAB BHA. LD MILLING BHA. MILLS GAUGE 3.80 GO,3.79 NO-GO. CHECK TORQUE ON TREE BOLTS. 15:30 - 17:15 1.75 DRILL P PROD1 MU BUILD BHA. 3.3 DEG XTREME WITH NEW HYCALOG 4.25"TREX BIT. STAB COIL. TEST TOOLS. GET ON WELL. 17:15 - 18:45 1.50 DRILL P PROD1 RUN IN HOLE W/BUILD BHA. 18:45 - 19:00 0.25 DRILL P PROD1 LOG TIE-IN.MAKE-45.5 FT CORRECTION. 19:00 - 19:30 0.50 DRILL P PROD1 RIH TO WINDOW. REDUCE PUMP RATE AND RIH THRU WINDOW CLEAN. RA TAGGED LOGGED @ 10771'CORRECTED DEPTH. Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 6 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor: NORDIC CALISTA UWI:500292065300 Active Datum: 19 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:30 - 00:00 4.50 DRILL P PROD1 DRILL AHEAD FROM 10783 FT. 2460 PSI FS AT 2.48 BPM IN/OUT.ROP IS 30-45 FPH. 150-250 PSI MW. 1-2K#DHWOB. BHP/ECD/PVT:4482 PSI/10.16 ECD/413 BBLS. DROPPING INC.AND GAINING DEPARTURE FROM PARENT. DRILL TO 10874'MD. 12/25/2010 00:00 - 01:00 1.00 DRILL P PROD1 CONTINUED FROM RON REPORT DATED 12/24/2010. DRILL AHEAD IN BUILD SECTION FROM 10874 'FT CONTINUING TO DROP AND TURN.. 2450 PSI FS AT 2.45 BPM IN/OUT. BHP/ECD/PVT:4534 PSI/10.19 PPG/410 BBLS '1.5-3.0K#DHWOB. 200-250 PSI MW. ROP VARIABLE AT 5-40 FPH. DRILL TO 10900'AND BEGIN WIPER. 01:00 - 03:30 2.50 DRILL P I PROD1 'WIPER TO WINDOW. PULL THRU WINDOW CLEAN. OPEN EDC ABOVE WINDOW. LOG TIE-IN AND MAKE+2.75 FT CORRECTION. LOG RA TIE-IN TO FINALIZE WINDOW DEPTHS. RA TAG AT 10772 FT. -TOW @ 10763 FT. I-BOW @ 10773 FT. 03:30 - 06:00 2.50 DRILL P ' PROD1 RIH TO BOTTOM AND DRILL AHEAD FROM 10900 FT. 2475 PSI FS AT 2.50 BPM IN/OUT. BHP/ECD/PVT:4562 PSI!10.18 PPG/385 BBLS. 1.5-3.5K#DHWOB. 150-250 PSI MW. 06:00 - 06:30 0.50 DRILL P ! PROD1 CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND ROUNDS. CONTINUE TO DRILL BUILD FROM 10,948'. 06:30 - 10:00 3.50 DRILL P PROD1 DRILL AHEAD. 12510 PSI FS AT 2.56 BPM IN/OUT. 100-250 PSI MTR WRK. 3-4K#DHWOB. IA/OA/PVT:304 PSI/226 PSI/ 383 BBLS. BHP/TVD/ECD:4553 PSI/8626'/10.19 PPG. _ DRILL TO 11050'. 10:00 - 10:30 0.50 1 DRILL ' P PROD1 !WIPER TRIP TO WINDOW. • 2567 PSI AT 2.48 BPM IN. HOLE SMOOTH. 10:30 - 11:30 1.00 DRILL P PROD1 DRILL AHEAD. LAND BUILD AT 11,160'. - 11:30 - 13:30 2.00 DRILL P PROD1 WIPER TRIP TO WINDOW. OPEN EDC. CIRCULATE OUT OF HOLE. HOLD PJSM NEAR SURFACE TO DISCUSS HANDLING THE BHA. 13:30 - 15:30 2.00 r DRILL P PROD1 AT SURFACE. FLOW CHECK. GET OFF WELL. UNSTAB COIL. LD DRILLING BHA. MU LATERAL BHA WITH USMPR RES TOOL AND 1.1 DEG AKO. STAB COIL. TEST TOOLS. GET ON WELL. Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 7 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) i Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:OOAM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum:19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ( — (ft) 15:30 - 18:00 2.50 DRILL P PROD1 RUN IN HOLE W/DRILLING BHA. 18:00 - 18:15 0.25 DRILL P PROD1 I CREW CHANGE OUT. MAKE RIG ROUNDS AND CHECK.DISCUSS CURRENT OPERATIONS. 18:15 - 18:45 0.50 DRILL P PROD1 CONTINUE RIH. LOG TIE-IN AND MAKE-47 FT CORRECTION. 18:45 - 21:00 2.25 DRILL P PROD1 RIH TO BOTTOM AND DRILL AHEAD FROM 11,160'. '2750 PSI FS AT 2.90 BPM.250-350 PSI MW. '2.5-3.5K#DHWOB. IA/OA/PVT:261 PSI/117 PSI/377 BBLS. ROP IS 60-90 FPH. BHP/TVD/ECD:4699 PSI/8749'/10.34 PPG. DRILL TO 11,300'. 21:00 - 22:00 1.00 DRILL P PROD1 LONG WIPER TRIP TO MAD PASS FOR RES DATA. MAD PASS FROM 11,175'TO WINDOW. 22:00 - 22:30 0.50 DRILL P PROD1 RIH BACK TO BOTTOM FOLLOWING MAD PASS. 22:30 - 00:00 I 1.50 DRILL P PROD1 DRILL AHEAD FROM 11.300'. 2770 PSI FS AT 2.9 BPM IN/OUT. 3-3.5K#DHWOB.300-350 PSI MW. DRILL TO 11,400'MD. 12/26/2010 00:00 00:30 0.50 DRILL P PROD1 CONTINUED FROM RON REPORT DATED 12/25/2010. DRILL AHEAD FROM 11,400'MD. DRILL TO 11,427'MD AND START SEEING WT. TRANSFER ISSUES. 00:30 - 01:30 1.00 DRILL P PROD1 WIPER TRIP TO WINDOW. 01:30 - 04:30 3.00 DRILL P PROD1 DRILL AHEAD FROM 11,427'. 2800 PSI FS AT 2.9 BPM. 3.5-5K#WOB. SLOW DRILLING THRU SHALE INTERVAL. STEER DOWN LOOKING FOR CLEANER SAND. DRILLED TO 11,480'. 03:30-BEGAN SWAPPING OVER TO NEW MUD SYSTEM 04:30 - 06:00 1.50 DRILL P PROW WITH NEW MUD AT THE BIT ESTABLISHED NEW SLOW PUMP RATES. DRILL AHEAD FROM 11,480'. 06:00 - 06:30 0.50 DRILL P PROD1 CREW CHANGE. DISCUSS OPERATIONS. I MAKE RIG CHECKS AND ROUNDS. CONTINUE TO DRILL AHEAD. 06:30 - 07:30 1.00 DRILL P PROD1 DRILL AHEAD TO 11597' 2710 PSI FS AT 2.73 BPM IN/OUT. 200-350 PSI MTR WRK 4-4 5K#DHWOB. IA/OA/PVT: 32 PSI/4 PSI/374 BBLS. 07:30 - 08:30 1.00 DRILL P PROD1 MAKE WIPER TRIPTOWINDOW. HOLE SMOOTH. 2720 PSI AT 2.72 BPM. LOG GR TIE IN AT RA TAG. ADD4' CORRECTION. RIH. 08:30 - 13:00 4.50 DRILL P PROD1 DRILL AHEAD FROM 11,597'. 2950 PSI FS @ 3.00 BPM IN/OUT. 250 PSI MTR WRK. 4.05K#DHWOB. SLOW DRILLING DUE TO SHALE INTERVALS. Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 8 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project: Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI: 500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 15:00 2.00 DRILL P i, PROD1 DRILL AHEAD TO 11,750'. 15:00 - 16:00 1.00 DRILL P PROD1 MAKE WIPER TRIP TO WINDOW. 2567 PSI FS AT 2.60 BPM IN. RIH TO BOTTOM. 16:00 - 18:00 2.00 DRILL P PROD1 DRILL AHEAD FROM 11,750'. SLOW DRILLING DUE TO SHALES. 18:00 - 19:15 1.25 DRILL • P ' PROD1 CREW CHANGE OUT. MAKE RIG ROUNDS AND CHECKS. ESTABLISH SLOW PUMP RATES&CONTINUE DRILLING AHEAD. 19:15 - 19:45 0.50 T DRILL P PROD1 1DRILL TO 11807'MD AND SLOWLY PULL UP HOLE CIRC.AT 2.4 BPM WHILE WAITING FOR TOWN TEAM TO REEVALUATE LOGS/FORMATION AND DECIDE PLAN FORWARD. SAMPLE FROM 11,750'SHOWS WERE STILL DRILLING IN SILTY/SHALY Z1A. 19:45 - 00:00 4.25 DRILL P , PROD1 DECISION WAS MADE TO FOLLOW THE PLAN AND CONTINUE DROPPING DOWN TO 8754' TVD AND LEVEL OUT IN ORDER TO INTERSECT CLEANER Z1A SANDS. • I RIH AND DRILL AHEAD FROM 11,807'MD. 2800 PSI FS AT 2.9 BPM IN/OUT. 200-250 PSI MW.4.5K#DHWOB.AVG ROP-20 FPH. BHP/ECD/PVT:4699 PSI/10.32 PPG/367 BBLS. WHP/IA/OA:77 PSI/283 PSI/261 PSI. DRILL TO 11,900'. 12/27/2010 00:00 - 01:30 1.50 DRILL P PROW CONTINUED FROM RON REPORT DATED 12/26/2010. MAKE WIPER TO WINDOW FROM 11,900'MD. 2.9 BPM AT 2710 PSI. RIH CLEAN BACK TO BOTTOM. 01:30 - 05:30 4.00 DRILL P PROD1 DRILL AHEAD FROM 11,900'. 2760 PSI FS AT 2.9 BPM IN/OUT. 250 PSI MW.4.75K#DHWOB. BHP/ECD/PVT:4689 PSI/10.32 PPG/363 BBLS. STEERING BACK UP IN ORDER TO AVOID DRILLING INTO BSAD AND IN ANTICIPATION OF HIGHER PROJECTED DIP. SLOW ROP CONTINUES DRILLING THRU SHALE INTERVALS. _ DRILL TO 11968'MD. 05:30 06:00 � 0.50 it DRILL N RREP 11,967.98 PROD1 LOST A SWAB ON PUMP#2. BEGIN PUH TO CASED HOLE CIRC.AT 2.2 BPM. 06:00 - 06:30 0.50 DRILL N RREP 11,967.98 PROD1 CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND ROUNDS. PJSM FOR PUMP WORK. CONTINUE TO REPAIR PUMP#2 06:30 - 08:00 1.50 DRILL P PROD1 CIRCULATE IN CASING AT+/-10,680'.2190 I PSI AT 2.15 BPM IN. BEGIN PUMP REPAIRS. LOG GR TIE IN. ADD 8'CORRECTION. Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 9 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 09:30 1.50 DRILL P PROD1 WIPER BACK TO BTM. HOLE SMOOTH. 09:30 - 13:30 4.00 DRILL P PROD1 DRILL AHEAD FROM 11,968' 2900 PSI FS AT 2.99 BPM IN/OUT. 3-4K# DHWOB. 250 PSI MTR WRK. IA/OA/PVT:452 PSI/144 PSI/354 BBLS. 13:30 - 15:30 2.00 DRILL P I PROD1 WIPER TRIP TO WINDOW. HOLE SMOOTH. 15:30 - 18:00 2.50 DRILL P PROD1 DRILL AHEAD FROM 12,100'. • 2900 PSI FS AT 3.0 BPM IN/OUT. 4K#DHWOB. SLOW ROP DUE TO SHALE INTERVAL. 18:00 - 19:30 1.50 DRILL P PROD1 CREW CHANGE-OUT. MAKE RIG ROUNDS AND CHECKS. DRILL AHEAD FROM 12,156'MD INVERTING BACK UP THRU SECTION AT 96 DEG INC. 2760 PSI FS AT 2.8 BPM.200-250 PSI MW. 3.5-4.0K#DHWOB. BHP/ECD/PVT: 4748 PSI/10.36 PPG/353 BBLS. AVG.ROP—80 FPH. DRILL TO 12,250'MD. 19:30 - 22:00 2.50 DRILL - P PROD1 MAKE WIPER TO WINDOW. LOG TIE-IN AN MAKE+5 FT CORRECTION. HOLE SMOOTH BOTH WAYS. 22:00 - 00:07 z DRILL P PROD1 DRILL AHEAD FROM 12,250'MD. 2780 PSI FS AT 2.8 BPM. 250-300 PSI MW.3.5 4.5K#DHWOB. BHP/ECD/PVT: 4708 PSI/10.39 PPG/356 BBLS. ROP IS VARIABLE AND SLOWS PAST 12,274' • MD. DRILL TO 12,299'. 12/28/2010 00:00 - 04:00 4.00 DRILL P PROD1 REPORT CONTINUED FROM RON REPORT DATED 12/27/2010. DRILL AHEAD FROM 12,299. 2820 PSI FS @ 2.8 BPM.3.0K#DHWOB. 200-300 PSI MW. BHP/ECD/PVT:4691 PSI/10.35 PPG/362 BBLS ROP VARIABLE AND SLOW DUE TO SHALE INTERVALS. DRILL TO 12,393'MD. 04:00 - 06:15 2.25 DRILL P i j PROD1 WIPER TO WINDOW. SLIGHT MW AT 11,050',11,430'MD RIH. 06:15 - 09:00 2.75 DRILL P PROD1 DRILL AHEAD FROM 12,393'. 2830 PSI FS @ 2.79 BPM. BHP/ECD/PVT:4731 PSI/10.36 PPG/357 BBLS DRILL TO 12550;. 09:00 - 10:30 1.50 DRILL P PROD1 MAKE WIPER TRIP TO WINDOW. 2582 PSI FS AT 2.58 BPM IN. HOLE SMOOTH 10:30 - 13:00 2.50 DRILL P PROD1 _ DECISION MADE TO SET OH ALUMINUM BILLET. WIPER BACK TO WINDOW. CIRCULATE OUT OF HOLE. 13:00 - 14:00 , 1.00- DRILL C PROD1 AT SURFACE. GET OFF WELL.UNSTAB COIL. LD BHA. 14:00 - 16:00 2.00 DRILL C PROD1 FUNCTION TEST BOPS FROM RIG FLOOR, KOOMEY,OPS CAB STATIONS. Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 10 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 20:00 4 4.00 STKOH C PROD1 WAIT ON BTT AND OH BILLER BHA. 20:00 - 20:15 0.25 STKOH C 12,550.00 PROD1 PJSM TO MU OH BILLET BHA 20:15 - 20:50 0.58 STKOH C PROD1 MU BHA MU INJECTOR TO BHA 20:50 - 00:00 3.17 STKOH C PROD1 RIH AT 60 FPM AS PER BTT HAND,TOOH HAD LOTS OF PEA GRAVEL STARTING AT 2000'TO SURFACECONTINUE RIH AT 10300' 12/29/2010 00:00 - 01:00 1.00 STKOH C PROD1 TIE IN AT 10425' CORRECT DEPTH-47.5' RIH TO WINDOW AND CLOSE EDC RIH TO 11310'AND PU TO 11301.4'TO SET TOB AT 11290'AS PER PLAN 01:00 01:10 0.17 STKOH C PROD1 TOP OF BILLET AT 11290' ONLINE WITH PUMP AND SHEARED SETTING TOOL AT 3750 PSI STACK 2.7K DOWN ON BILLET TO CONFIRM GOOD SET AND POOH PJSM WITH DRILL TO CONFIRM PVT 01:10 - 03:30 2.33 STKOH C PROD1 POOH TO LD BILLET SETTING TOOL 03:30 - 04:00 0.50 STKOH C PROD1 PJSM TO LD BHA 04:00 - 05:00 1.00 STKOH C PROD1 REMOVE INJECTOR AND LD MWD BILLET SETTING TOOL SHIFTED AS DESIGNED,LD SETTING TOO&LOAD OUT 05:00 - 06:00 1.00 •STKOH C 1 PROD1 PREP FLOOR TO CUT 100'OF COIL FOR CHROME MANAGEMENT 06:00 - 06:30 0.50 STKOH C PROD1 CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND ROUNDS. CONTINUE CUTTING COIL. 06:30 - 07:30 1.00 STKOH C PROD1 CUT 109'OF COIL AND E-LINE. { MU AND TEST BHI E-CONNECTOR. TEST CHECK VALVES IN CONNECTOR ASSEMBLY. 07:30 - 08:30 1.00 STKOH C PROD1 MU BHI KICK OFF/LATERAL BHA. 1.1 DEG MTR W/HCC RE-RUN BICENTER W/9 ,MM CUTTERS. STAB COIL. TEST TOOLS. GET ON WELL. 08:30 - 10:30 2.00 STKOH C PROD1 RUN IN HOLE. 10:30 - 11:00 0.50 STKOH C PROD1 LOG GR TIE IN.-47.5'. 11:00 - 12:00 1.00 STKOH C - PROD1 MAKE WIPER TRIP TO 11,290'. TAG BILLET AT 11 290'. 12:00 - 13:00 1.00 STKOH C PROD1 DRILL SIDETRACK OFF BILLET. 45 DEG LOHS.2700 PSI FS AT 2.75 BPM IN/OUT STALL SEVERAL TIMES DUE TO STICK/SLIP. 13:00 - 14:00 1.00 STKOH C PROD1 DECIDE TO SWAP MUD BEFORE PROCEDING. CIRCULATE NEW MUD AROUND. 14:00 - 17:00 3.00 STKOH C PROD1 DRILL AHEAD FROM 11290'. 2750 PSI FS AT 2.72 BPM IN/OUT. 200-300 DPSI. 1.5K#DHWOB. IA/OA PVT:23 PSI/1 PSI/415 BBLS. DRILL TO 11,400'. • 17:00 - 18:00 1.00 DRILL C PROD1 CONTINUE DRILLING 18:00 - 18:15 0.25 DRILL C PROD1 SHORT TRIP FROM 11450' Printed 2/23/2011 11:37:27AM • • North America-ALASKA- BP Page 11 of 16 • Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:15 - 20:00 1.75 DRILL C PROD1 MAD PASS LOG FOR GEO'S FROM 11325'TO 10800' 20:00 - 20:30 0.50 DRILL C PROD1 END LOGGING,RIH TO CONTINUE DRILLING 20:30 - 21:30 1.00 DRILL C PROD1 ON BOTTOM DRILLING FS AT 3.1 BPM=2950 PSI WOB/?P/PVT= 1.84K/774 PSI/416 BBLS WHP/IAP/OAP=84/38/7 PSI 21:30 - 22:30 1.00 DRILL C PROD1 DRILLING AHEAD WOB/?P/PVT=1.88K/680 PSI/415 BBLS WHP/IAP/OAP=81/51/9 PSI PUMP 1 HAS A KNOCKING SOUND COMING FROM THE SUCTION MANIFOLD 22:30 - 23:10 0.67 DRILL C PROD1 DRILLING AHEAD BRING PUMP 1 BACK ONLINE,TOOK 8 BBLS TO FILL LINES BACK UP PVT=407 BBLS 23:10 23:40 0.50 DRILL C PROD1 SHORT TRIP TO WINDOW 23:40 - 00:00 0.33 DRILL C PROD1 BACK ON BOTTOM DRILLING WOB/?P/PVT=1.78K/681 PSI/406 BBLS WHP/IAP/OAP=81/88/16 PSI CONTINUE DRILLING ON 12/30/2010 REPORT 12/30/2010 00:00 - 01:30 1.50 DRILL C PROD1 CONTINUE DRILLING FROM 12/29/2010 WOB/?P/PVT= 1.29K/681 PSI/406 BBLS WHP/IAP/OAP=81/88/16 PSI 01:30 - 01:50 0.33 DRILL C PROD1 CONTINUE DRILLING AHEAD WOB/?P/PVT=1.29K/681 PSI/406 BBLS WHP/IAP/OAP=81/88/16 PSI PVT TO INCREASE FROM TURNING ON CENTRIFUGES 01:50 - 02:45 0.92 DRILL C PROD1 SHORT TRIP 02:45 - 03:30 0.75 DRILL C PROD1 TIE IN AT 10790' CORRECT DEPTH+5'AND RIH 03:30 - 05:00 1.50 DRILL C PROD1 CONTINUE DRILLING AHEAD WOB/?P/PVT=2.49K/848 PSI/418 BBLS WHP/IAP/OAP=81/194/46PS1 05:00 - 05:45 0.75 DRILL C PROD1 CONTINUE DRILLING AHEAD WOB/?P/PVT=1.71K/774 PSI/418 BBLS WHP/IAP/OAP=95/251 /67 PSI 05.45 - 06:00 0.25 DRILL C PROD1 SHORT TRIP TO WINDOW 06:00 - 06:30 0.50 DRILL C PROD1 CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND ROUNDS. CONTINUE WIPER TRIP TO WINDOW. 2618 PSI @ 2.75 BPM. 06:30 - 07:30 1.00 DRILL C PROD1 CONTINUE WIPER TRIP TO WINDOW PUMP MIN RATE AT BILLET FOR UP PASS. PUMP OFF AND 20'/MIN ON DOWN PASS. HOLE SMOOTH. 07:30 - 10:45 3.25 DRILL C PROD1 DRILL AHEAD FROM 11840'. 2730 PSI FS AT 2.76 BPM IN/OUT. 200-300 PSI MTR WRK. 3-4K#DHWOB. IA/OA/PVT:424 PSI/176 PSI/395 BBLS. DRILL TO 11950'. WEIGHT TRANSFER GETTING DIFFICULT. 10:45 - 12:45 2.00 DRILL C PROD1 WIPER TRIP TO WINDOW. 2800 PSI FS AT 2.81 BPM. HOLE SMOOTH. LOTS OF METAL IN BTMS UP. REDUCE PUMP RATE ACROSS BILLET AT 11,23'. Printed 2/23/2011 11:37:27AM • North America -ALASKA- BP Page 12 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 ,X3-00Y02-C(1,729,151.00) Project: Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM 1Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:45 - 15:45 3.00 DRILL C PROD1 DRILL AHEAD FROM 11,960'. 2850 PSI FS AT 2.75 BPM IN/OUT. 200-400 PSI MTR WRK. BECOME STUCK AT 12,150'. CYCLE PUMP AND GET FREE.WITH MAX PULL 60K#. 15:45 - 17:00 1.25 DRILL C PROD1 MAKE WIPER TRIP TO WINDOW. 2820 PSI FS AT 2.83 BPM IN. PVT:394 BBLS. 17:00 - 18:00 1.00 DRILL C PROD1 GETTING LOTS OF PEA SIZE SILTSTONE IN RETURNS,OPEN EDC AND JET HOLE TO SURFACE 18:00 - 20:25 2.42 DRILL C PROD1 CONTINUE POOH TO SURFACE TO CLEAN HOLE AND CHECK BIT 20:25 - 20:45 0.33 DRILL C PROD1 'PJSM TO PULL BHA AND CHECK BIT MM PLUGGED OFF,GETTING CHUNKS OF SILTSTONE AND ALUMINUM 20:45 - 21:30 0.75 DRILL PROD1 OOH, CLOSE EDC PULL BHA,BIT IS BALLED WITH CLAY BUT LOOKS GOOD RERUN BIT AND STAB BACK ON 21:30 - 23:30 2.00 DRILL C PROD1 RIH 23:30 - 00:00 0.50 DRILL C PROD1 LOG TIE IN •CORRECT DEPTH-48.5' 'CLOSE EDC AND RIH 12/31/2010 00:00 - 00:30 0.50 DRILL C PROD1 CONTINUE RIH MM PLUGGED OFF • 00:30 - 02:50 2.33 DRILL C PROD1 BACK ON BOTTOM DRILLING WOB/?P/PVT=2.29K/769 PSI/368 BBLS WHP/IAP/OAP=73/304/115 PSI 02:50 - 04:30 1.67 DRILL C PROD1 SHORT TRIP TO WINDOW WOB/?P/PVT=N/A/N/A/366 BBLS WHP/IAP/OAP=66/520/220 PSI 04:30 - 05:15 0.75 DRILL C PROD1 RIH FROM WINDOW 11560'MM PLUGGED OFF AGAIN 05:15 - 06:00 0.75 DRILL P PROD1 BACK ON BOTTOM DRILLING WOB/?P/PVT=2.21K/709 PSI/369 BBLS WHP/IAP/OAP=81/560/261 PSI 06:00 - 06:30 0.50 DRILL P PROD1 CREW CHANGE. DISCUSS CURRENT OPS. MAKE RIG CHECKS AND ROUNDS. CONTINUE TO DRILL AHEAD. 06:30 - 07:15 0.75 DRILL P PROD1 DRILL AHEAD TO 12,450'. 2908 PSI FS AT 2.84 BPM IN/OUT. IA/OA/PVT: 157 PSI/89 PSI/365 BBLS. BHP/TVD/ECD:4755 PSI/8710'/10.5 PPG • 07:15 - 09:30 2.25 DRILL P PROD1 MAKER WIPER TRIP TO WINDOW. 2910 PSI FS AT 2.84 BPM. PVT:365 BBLS. REDUCE CIRC RATE AT BILLET. 09:30 - 11:30 2.00 DRILL P PROD1 DRILL AHEAD FROM 12,450'. 2930 PSI FS AT 2.79 BPM IN/OUT. 200-350 PSI MTR WRK. 1.5-2.0K#DHWOB. DRILL TO 12600'. • 11:30 - 13:30 2.00 DRILL P PROD1 MAKE WIPER TRIP TO WINDOW. 2940 PSI FS AT 2.80 BPM. HOLE SMOOTH. 13:30 - 15:00 1.50 DRILL P PROD1 DRILL AHEAD FROM 12,600'. 3051 PSI AT 2.79 BPM IN/OUT. ECD: 10.77 PPG,DUE TO CUTTINGS AND HIGH ROP? • Printed 2/23/2011 11:37:27AM • North America -ALASKA- BP Page 13 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time: 9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 115:00 - 17:15 2.25 DRILL P PROD1 1CONTINUE TO DRILL AHEAD. BEGIN DISPLACEMENT TO NEW MUD SYSTEM. SEND USED MUD TO MI PLANT. DRILL TO 12680'. 17:15 - 20:20 3.08 DRILL P PROD1 CONTINUE TO DRILL AHEAD 20:20 - 23:00 2.67 DRILL P PROD1 SHORT TRIP PVT=316 BBLS 23:00 - 00:00 1.00 DRILL P PROD1 BACK ON BOTTOM DRILLING GEO'S WANT TO DROP AND CROSS CUT Z1A LOOKING FOR THE BSAD WOB/?P/PVT=3.56K/732 PSI/311 BBLS WHP/IAP/OAP=70/32/9 PSI ECD= 10.25 PPG ROP=65 FPH 12764'MID NIGHT DEPTH&ROP DROPPED TO—20 FPH GEO SAID THIS IS EXPECTED 1/1/2011 00:00 - 03:15 3.25 DRILL P PROD1 CONTINUE DRILLING DROPPING ANGLE CROSS CUTTING Z1A LOOKING FOR THE BSAD ROP DROPPED AT 12764'AND BIT SEEMS BALLED UP SAMPLE FROM 12750 HAD CLAY IN IT AND WOULD EXPLAIN DECREASE IN ROP 03:15 - 04:25 1.17 DRILL P PROD1 DRILLED DOPPED 3°AND STARTED COMING BACK UP AND POPPED THROUGH A TRANSITION ZONE AND BACK INTO SAND??? ROP=80-120 FPH FREE SPIN AT 2.9 BPM=2920PSI WI-VIA/OA=73/93/35 PSI • ?P=858 PSI i ROP=80-120 FPH,DHWOB=2.9-3.2K ECD=10.38 PPG,ACTIVE PVT=321 BBLS CENTRIFUGE IS AIRING UP MUD INCREASING VOLUME 04:25 - 06:00 1.58 DRILL P PROD1 SHORT TRIP TO WINDOW PVT=324 BBLS SHUT DOWN CENTRIFUGE 06:00 - 06:30 0.50 DRILL P PROD1 CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND ROUNDS. CONTINUEWIPER TRIP. 2780 PSI FS AT 2.32 BPM IN. STEP CHANGE IN PRESSURE. SUSPECT A PLUGGED JET. 06:30 - 09:45 3.25 DRILL P PROD1 PULL OUT OF HOLE TO CHECK BIT AND PU AGITATOR. PJSM NEAR SURFACE. 09:45 - 11:30 1.75 DRILL P PROD1 AT SURFACE.GET OFF WELL. UNSTAB COIL. LD BHA. BIT GRADED 1-1-I. ALL WATERCOURSES FULLED WITH CLAY LIKE MATERIAL. PU AGITATOR. MU USD HYCALOG DS-49 STYLE BIT. STAB COIL.TEST TOOLS. GET ON WELL. 11:30 - 13:30 2.00 DRILL P PROD1 RUN IN HOLE. ,13:30 - 14:00 0.50 DRILL P PROD1 LOG GR TIE IN FROM 10.250'. SUBTRACT 48'. 14:00 - 16:45 2.75 DRILL PO PROD1 CONTINUE WIPER TRIP IN TO HOLE. SHUT DN PUMS WHEN PASSING BILLET AT 11,293. 116:45 - 18:15 1.50 DRILL P PROD1 DRILL AHEAD FROM 12,900'. 3410 PSI FS AT 2.73 BPM IN/OUT. Printed 2/23/2011 11:37:27AM North America-ALASKA- BP Page 14 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor: NORDIC CALISTA UWI: 500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations _ _1 (hr) (ft) 18:15 - 19:20 1.08 DRILL P PROD1 CONTINUE DRILLING FREE SPIN AT 2.7 BPM=3400PS1 WH/IA/OA=73/83/13 PSI ROP=90 FPH,DHWOB=2.15, ECD=10.66 PPG 19:20 - 22:00 2.67 DRILL P PROD1 •SHORT TRIP TO WINDOW PVT=287 bbls 22:00 - 00:00 2.00 DRILL P PROD1 BACK ON BOTTOM DRILLING PVT=280 BBLS LOST 7 BBLS DURING TRIP FREE SPIN AT 2.7 BPM=3730 PSI • WH/IA/OA=70/155/50 PSI ROP=100 FPH,DHWOB=2.53,ECD=10.78 PPG MIDNIGHT DEPTH 13190' 1/2/2011 00:00 - 00:20 0.33 DRILL P PROD1 SHORT TRIP TO THE WINDOW PVT=269 00:20 03:00 2.67 DRILL P PROD1 BACK ON BOTTOM DRILLING PVT=252 LOST 17 BBLS DURING TRIP FREE SPIN AT 2.7 BPM=3944 PSI WH/IA/OA=66/190/87 PSI ROP=90 FPH,DHWOB=2.18,ECD= 10.89 PPG 03:00 - 04:45 1.75 DRILL P PROD1 DRILL TO 13237'AND MOTOR WORK DRILLED OFF, PU CLEAN 04:45 - 05:50 1.08 DRILL P ' PROD1 PU CLEAN TO 13170'AND TRIED TO GO BACK DOWN AND CAN'T,TRY COMING UP AND CAN'T MOVE.TRY PULLING 90K A FEW TIMES :AND NO MOVEMENT.SHUT DOWN PUMP AND TRY AGAIN AND CAN'T MOVE. DIFFERENTIALLY STUCK—70'OFF BOTTOM PULLING 90K WITH NO MOVEMENT TRY STACKING WT AND ALLOW TIME TO RELAX ORDERED 100 BBLS OF MINERAL OIL 05:50 - 06:00 0.17 DRILL P PROD1 NO MOVEMENT AFTER SHUTTING DOWN PUMP, BRING PUMP ONLINE TO USE AGITATOR AND TRY AND CLEAN UP/LIGHTEN UP THE MUD WHILE WAITING FOR MINERAL OIL. EDC @ 11.01 PPG IN-OUT ARE 1:1 PVT=235 BBLS 06:00 - 06:30 0.50 DRILL P PROD1 CREW CHANGE. MAKE RIG CHECKS AND ROUNDS. DISCUSS OPS. DISCUSS PHASE TWO TRAVEL.ARRANGE CONVEY TO RIG CAMP. CONTINUE TO CIRCULATE TO REMOVE SOLIDS FROM MUD. 06:30 - 09:00 2.50 DRILL N STUC 13,169.97 PROD1 CONTINUE TO CIRCULATE WHILE WAITING ON MINERAL OIL. 1.1 BPM AT 2087 PSL CHILL TRUCKS NOT MOVING WITH IMPENDING PHASE 3. 09:00 - 09:30 0.50 DRILL N STUC 13,169.97 PROD1 REST HOLE FOR 20 MIN. PUSH TO-14K#. PULL 81K#3x. NO MOVEMENT. 09:30 - 17:00 7.50 DRILL N STUC 13,169.97 PROD1 CONTINUE TO CIRC AT 1.1 BPM @ 2036 PSI. WAIT ON MIN OIL. WEATHER NEAR PHASE 3. NON ESSENTIAL TRAVEL RESTRICTED. PUSH,PULL,AND NEUTRAL COIL WITH PUMP ON AND OFF. NO MOVEMENTS. DISCUSS CIRCULATION&FLUID MANAGEMENT WITH TOWN. PVT DOWN TO 189 BBLS. CALL FOR ADDITIONAL 200 BBLS MUD. Printed 2/23/2011 11:37:27AM • North America -ALASKA- BP Page 15 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time: 9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor: NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 19:00 2.00 DRILL N STUC 13,169.97 PROD1 WO MINERAL OIL,MUD AND CREW CHANGE BEFORE PUMPING MINERAL OIL 19:00 - 19:30 0.50 DRILL N STUC 13,169.97 PROD1 GIVE COIL A COUPLE PULLS WHILE ADDING FLO VIS FOR PILLS AND HOLDING PJSM NO MOVEMENT, HOLD PJSM WITH CREWS TO PUMP MINERAL OIL REVIEW PROCEDURE,MSDS AND STUCK PIPE PREVENTION RP FOR PUMPING MO& CRUDE 19:30 - 19:40 0.17 I DRILL N STUC 13,169.97 PROD1 LINE UP TO PUMP 10 BBLS HI-VIS PILL FOLLOWED BY 30 BBLS OF MO THEN 5 HI-VIS BEHIND VERIFIED MO IS 6.9 PPG AS PER PROGRAM 19:40 - 20:10 0.50 DRILL N STUC 13,169.97 PROD1 ONLINE WITH 10 BBLS OF HI-VIS MUD 2.77 BPM©4060 PSI W WIA/OA=66/32/6 PSI ECD= 11.21 PPG DHWOB=3.47K SWAP TO 30 BBLS OF MO SWAP BACK TO 5 BBLS OF HI-VIS FOLLOWED BY MUD 20:10 - 21:05 0.92 DRILL N STUC 13,169.97 PROD1 55 BBLS AWAY,MO STARTING OUT THE BIT 20:15 10 BBLS MO OUT SHUT DOWN PUMP AND ALLOW MO TO SOAK TRY ORIENTING BHA, BHA IS ABLE TO ROTATE 20:25 10 MIN SOAK TIME TRY WORKING PIPE 20:30 NO MOVEMENT, SLACK OFF TO NEUTRAL WT AND PUMP 5 BBLS MO 20:35 5 BBLS MO PUMPED(15 TOTAL)SHUT DOWN AND ALLOW TO SOAK 20:40 TRY WORKING PIPE 120:45 NO MOVEMENT, SLACK OFF TO !NEUTRAL WT AND PUMP 5 BBLS MO '20:51 5 BBLS OUT(20 TOTAL)SHUT DOWN 1 PUMP AND ALLOW TO SOAK 20:56 TRY WORKING PIPE 21:05 - 21:50 0.75 DRILL P PROD1 _.PULLED FREE MOVE UP HOLE SLOW AND CIRC THE LAST OF THE MO OUT AND TO SURFACE 21:50 - 22:05 0.25 DRILL P PROD1 START SENDING RETURNS OUTSIDE TO TT ACTIVE PVT=200 BBLS 22:05 22:50 0.75 DRILL P PROD1 BRING RETURNS BACK INSIDE,SENT 50 BBLS TO TT 22:50 - 23:30 0.67 DRILL P PROD1 REDUCED PUMP RATE TO 0.5 BPM COMING THROUGH BILLET AND BIT IS HUNG UP AT THE BILLET TRY WORKING DOWN BEFORE PULLING HEAVY POPPED FREE GOING DOWN,BRING ON PUMP WHILE RIH TO FLUSH BILLET AREA PUH AND TRY PULLING THROUGH BILLET AGAIN AT 0.75 BPM, CLEAN 23:30 - 00:00 0.50 DRILL P PROD1 PUH INTO TUBING TO JET 1 TUBING VOLUME AS PER REQUEST FROM ODE .25 BBLS BEFORE BOTTOMS UP AND WELL AFTER,WE ARE GETTING A LOT SAND AND CLAY BALLS 1/3/2011 00:00 - 00:20 0.33 DRILL P PROD1 CONTINUE PUMPING BOTTOMS UP TO CLEAN TUBING 25 BBLS BEFORE BOTTOMS UP AND WELL 1AFTER WE ARE GETTING A LOT SAND AND _CLAY BALLS Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 16 of 16 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/20/2010 End Date: 1/3/2011 X3-00Y02-C(1,729,151.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date [ From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:20 - 00:40 0.33 DRILL P j PROD1 CLOSE EDC AND TIE IN 00:40 - 02:00 1.33 DRILL P PROD1 CORRECT DEPTH+24'AND RIH TO TD 02:00 - 02:20 0.33 DRILL P PROD1 13000'START STACKING WT,LOST-6500# DOWN TO 13100'THEN STARTED COMING BACK. PUH TO 12900'AND MAKE SURE HOLE IS CLEAN 02:20 - 02:40 0.33 DRILL P PROD1 AG BOTTOM AT 13250',PU AND TAG AGAIN 10 TO CONFIRM START 50 BBL LINER PILL 02:40 - 02:50 0.17 DRILL P PROD1 CONFIRMED TD IS 13250' 02:50 - 04:30 1.67 DRILL 1 P PROD1 POOH LAYING IN LINER PILL 04:30 - 06:00 1.50 DRILL P PROD1 PULL INTO CASING,TOOH WAS CLEAN. OPEN EDC AND POOH STOP AT 10200'EOP AND PAINT A WHITE FLAG STOP AT 7700'AND PAINT AN ORANGE FLAG Ir BOTH FLAGS ARE EOP DEPTHS WITH BHA TAKEN OUT 06:00 - 06:30 0.50 DRILL P PROD1 CREW CHANGE DISCUSS OPERATIONS. MAKE RIG CHECKS AN ROUNDS. CIRCULATE OUT OF HOLE. 2930 PSI AT 3.36 BPM. 06:30 - 07:00 0.50 DRILL L P PROM CONTINUE TO CIRC OUT OF HOLE. 07:00 - 08:00 1.00 DRILL P PROD1 GET OFF WELL. UNSTAB COIL. LD DRILLING BHA. Printed 2/23/2011 11:37:27AM North America -ALASKA- BP Page 1 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time: 9/13/1981 12:00:OOAM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum:19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date ! From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 1/3/2011 08:00 09:30 1.50 CASING P RUNPRD RIG UP TO PUMP SLACK FORWARD. HOLD PJSM. PUMP 140'OF E-LINE FROM REEL. THIS LEAVES+/-75'OF SLACK IN REEL.Cut 14'of coil. 09:30 - 11:00 1.50 CASING P RUNPRD CIRCULATE 3/4"BALL. COIL VOL FOR BALL 53.1 BBLS. SEL E-LINE. MU AND PULUPRESS TEST BTT CONNECTOR. 11:00 - 12:00 1.00 CASING P RUNPRD INSPECT INJECTOR CHAINS(AFTER PULLING HEAVY WITH STUCK PIPE) 12:00 - 17:30 5.50 CASING P RUNPRD HOLD PJSM WITH CREW TO DISCUSS LINER OPERATIONS. VERIFY SAFETY JOINT AND CROSS OVERS ' AJC READY FOR THREE PIPE SIZES. MU 65 JTS 2-7/8"STL W/CEMNT X 15 JTS 3-3/16"TCII W/CEMENT X 6 JTS 3-1/2"STL LINER. FILL PIPE EVERY 10 JOINTS. MU BTT GEN II SELRT LINER RNG TOOL. 17:30 - 18:00 0.50 CASING P1 RUNPRD CREW CHANGE 18:00 - 20:00 2.00 CASING I P { RUNPRD RIH 20:00 - 20:10 1 0.17 CASING P RUNPRD TIE INTO FLAG,CORRECT DEPTH 49'FROM 10623.5'TO 10574.5' 20:10 - 20:50 0.67 CASING P RUNPRD CONTINUE RIH CLEAN PASSING THROUGH WINDOW 20:50 - 21:50 1.00 CASING rP RUNPRD TAG AT 12677'.$HUT DOWN PUMP, PU AND TRY WORKING PIPE DOWN TAG AGAIN AT 12717'PU,12792 POPPED i II I THROUGH TAG AGAIN AT 12956'PU TAG AGAIN AT 12980,3 SET DOWN AT SAME SHALE PU ARE CLEAN COME ONLINE WITH WT STACKED DOWN TO WARM COIL,PRESSURE PEAKED AT 2200 PSI THEN DROPPED OFF THEN WE GOT RETURNS STARTED INDICATING WE ARE PACKING OFF AT THE GUIDESHOE 21:50 - 22:00 0.17 CASING P RUNPRD SHUT DOWN PUMP AND PU AND TRY TO WORK DOWN TAG AT 12978' 22:00 - 22:50 0.83 CASING P RUNPRD PU TO UP WT,REDUCE SPEED AND COME ONLINE WITH PUMP AND PU 100-200'TO MAKE SURE HOLE BEHIND US IS CLEAN ONLINE AT 1 BPM 2800 PSI SHUT DOWMN PUMP AND RIH FROM 12880' TAG AT 12972',POPPED THROUGH AND TAGGED AT 12981.6' COME ONLINE AT MAX RATE TO2300PSI AND TRY TO WAS DOWN NO LUCK 22:50 - 00:00 1.17 CASING P RUNPRD CALLED ODE TO DISCUSS OPTIONS,ODE IS GOING TO MAKE CALLS WHILE WE CONTINUE TO TRY AND MAKE DOWNWARD PROGRESS.TAGGING SAME DEPTH 12981'. PU AND TRY PUMPING WHILE RIH TO TAG. STILL NO PROGRESS. CONTINUE ON 1/4/2011 Printed 2/23/2011 11:37:56AM 41114 North America -ALASKA- BP Page 2 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 1/4/2011 00:00 - 00:15 0.25 CASING P RUNPRD STILL NOT MAKING ANY PROGRESS, LOOSING GROUND ON SOME PICK UPS.TRY TO GET BACK DOWN TO 12980'AND WO ODE WITH PLAN FORWARD 00:15 - 00:30 0.25 CASING P RUNPRD PLAN FPRWARD IS TO SWP WELL TO KCL TO ENABLE HIGHER PUMP RATE TO TRY AND JET/WASH THROUGH WHAT WE ARE TAGGING.GET PITS LINED UP FOR FLUID SWAP 00:30 - 01:00 0.50 CASING P RUNPRD PULL LINER INTO TENSION AS PER BTT RECOMMENDATION FOR HIGHER RATE AND COME ONLINE TO SWAP WELL PUWT=54K ONLINE AT 0.9 BPM AT 2950 PSI, INCREASE RATE AS PRESSURE PERMITS 01:00 - 02:00 1.00 CASING P RUNPRD KCL STARTING OUT THE SHOE, IN MM VOL= 72.3 BBLS 02:00 - 05:00 3.00 CASING 4 P RUNPRD WELL SWAPPED TO KCL,SHUT DOWN PUMP TO GET UP WT THEN TAG AND TRY TO WASH OUR WAY DOWN PU WT=52K RIH PUMP ONLINE AT 1.5 BPM 630 PSI HAD TO DROP PUMP RATE TO GET DOWN TAG AT 12979',INCREASE RATE TO 2.5 BPM LET IN/OUT RATES LEVEL OFF AND DUMP COIL PRESSURE NO MOVEMENT,PU TO UP WT AND TRY PUSHING OUR WAY DOWN ONLINE AT 2.7 BPM 1760 PSI 03:30 NO MOVEMENT,REDUCE RATE PUH TO 12800'TO SEE WHAT THE HOLE LOOKS LIKE 03:50 RIH WITHOUT PUMP STOPPED AT 12846',SLOW DOWN SPEED AND MADE IT PAST TAG AT 12977'AND TRYING TO JET DOWN 05:00 - 05:20 0.33 CASING P RUNPRD NOT MAKING ANY PROGRESS,DROP 5/8" RELEASE BALL 05:20 - 05:50 0.50 CASING P RUNPRD ONLINE WITH CONFIRMED 5/8"RELEASE BALL IN COIL 05:50 - 06:00 0.17 I CASING P RUNPRD BALL ON SEAT AT 41.3 BBLS AND SHEARED AT 3800 PSI PU AS PER BTT RP TO VERIFY WE ARE RELEASED FROM LINER WE ARE FREE FROM LINER AT 12966'Cg?40K CALL OUT SLB CMT CREW 06:00 - 06:30 0.50 CASING P RUNPRD WO SLB CMT CREW. CREW CHANGE. DISCUSS OPS. MAKE RIG CHECKS& ROUNDS. 06:30 - 08:30 2.00 CASING P RUNPRD RU SLB CEMETERS. SPOT TRUCKS. 08:30 - 09:00 0.50 CASING P RUNPRD HOLD PJSM WITH CREW TO DISCUSS HSE AND PROCEDURES. Printed 2/23/2011 11:37.56AM North America -ALASKA- BP Page 3 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:OOAM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 11:00 2.00 CEMT P RUNPRD BATCH MIX 15.8 PPG CLASS G CEMENT AS PER WELL PLAN. UP TO WT AT 0915 HRS. FLOOD LINES WITH BIOZAN. PRESS TEST LINES TO 4500 PSI, LO AND HIGH. PUMP 26.5 BBLS CMT INTO REEL. STOP AND CLEAR LINES TO CEMENTERS. MAINTAIN 12K#DN WT ON BHA. 1.88 BPM AT 1600-2300 PSI 1:1 RTNS. DISPLACE CMT WITH BIO AND RIG PUMPS. CATCH CMT AFTER 12.2 BBLS PUMPED. 1:1 RTNS. 2.07 BPM AT 100-1500 PSI DURING DISP. 1:1 RTNS. SLOW RATE TO 1.0 BPM BEFORE CMT HITS SELRT. CONT DISP TO 52.6 BBLS(COIL VOL IS 54.6 BBLS) RESUME 1.95 BPM AT 1200 PSI. I ZERO OUT MM AT 46.4 BPM DISP WOITH CMT AT SHOE. 1.86 BPM IN/1.84 BPM OUT at 1604 PSI SHUT DN AT 53.5 BPM DISP. PU 13'PAST BREAK OVER UP WT. RIH. STACK OUT 10' HIGHER. PRESSURE COIL TO RELEASE PEEWEE DART. NOTE 500 PSI BEHIND DART IN COIL. PU UNTIL CT PRESS BLEED OFF NOTED(1.5' P TK ER). PUMP 5 BBLS EXHAUST 8 BPM AOO OPEN BAKER CHOKE. SLACK OFF 10'. SET 7.5K#DN WT. CLOSE BKR CHOKE. 1 PRESS CT TO SHEAR PLUG AT 3300 PSI. DISP PLUG AT 1.50 BPM/1730 PSI. 1.47 BPM OUT.1.48 IN/1.43 BPM OUT AT 2310 PSI AT 68 BBLS DISP. SLOW RATE TO 1.27 IN/1.27OUT BPM AT 2351 PSI. 'LAND PLUG AT 76.2 ,CALCULATED WAS 76.4. PRESSURE UP TO 2882 PSI TO SEAT PLUG. CHECK FLOATS. NO FLOW AT SHAKER. PRESS CT TO 700 PSI. UNSTING. CT BLEED OFF NOTED. CIRC 5 BBLS AT 0.5 BPM/948 PSI AT TOL. --- ---__.--- 1 CIP AT 1100 HRS. 11:00 - 14:00 3.00 CASING P RUNPRD HOLD PJSM TO DISCUSS TRIP OUT. 1 CIRCULATE OUT OF HOLE AT 0.5 BBLS MM OUT. 14:00 - 15:00 1.00 fi CASING P RUNPRD TAG STRIPPER, UD LINER RUNNING TOOLS. 15:00 - 19:30 j 4.50 CASING P : RUNPRD OPEN UP BOP DOORS TO INSPECT RAMS OQ AND CAVITES. PREP FOR BOP TEST. 19:30 - 00:00 4.50 CASING P RUNPRD START TESTING BOPE BOB NOBLE WITH THE STATE WAIVED WITNESSING THE TEST BLINDS SHEARS FAILED,CONTINUE TESTING CONTINUE TESTING BOPE 1/5/2011 00:00 - 02:00 I 2.00 I CASING P RUNPRD CONTINUE TEST BOPE — �— I 4ANNULAR FAILED TEST Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 4 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA 1UWI:500292065300 Active Datum:19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs 1 Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 02:20 0.33 CASING N RREP RUNPRD BOPE TEST STOPPED TO REPAIR ANNULAR BAG AND BLIND SHEARS PJSM TO REVIEW CRT-AK-10-36 FOR BREAKING CONTAINMENT.BOP REPAIRS FALL UNDER THIS STP AND MUST BE FOLLWED BEFORE OPENING BOPE FOR REPAIRS DISUSSED PLAN FORWARD FOR TESTING 2 MECHANICAL BARRIERS BEFORE PEFORMING REPAIRS AND IDENTIFIED POTENTIAL HAZARDS ASSOCIATED WITH THE TASK BARRIERS IN PLACE -LINER WAS JUST CEMENTED IN PLACE -KWF IS IN THE WELL -WE HAVE 2 MECHANICAL BARRIERS WITH THE SWAB AND MASTER 02:20 - 02:45 0.42 CASING r N RUNPRD LINE UP TO PRESSURE TEST MASTER& SWAB VALVE BOTH MASTER AND SWAB PASSED LOW AND HIGH PT'S SO ACCORDING TO THE STP FOR BREAKING CONTAINMENT WE ARE IN COMPLIANCE TO PERFORM THE REPAIRS 02:45 - 08:30 5.75 CASING N RUNPRD REPAIR BOPE. ANNULAR REPAIR COMPLETED, PT 250/2500 i. i PSI IS GOOD. BLIND SHEAR RAMS FAILED AFTER REPLACING SEALING ELEMENTS, REPLACE RAM BODIES AND ELEMENTS. 08:30 - 09:30 1.00 CASING N RUNPRD ATTEMPT TO OPEN LOWER 2-3/8"PIPE/SLIP 'RAMS WHICH WERE CLOSED TO HOLD TEST JOINT IN PLACE FOR ANNULAR TEST. LOWER 2-3/8"RAMS WON'T OPEN, TROUBLESHOOT AND BLEED OFF TRAPPED PRESSURE BETWEEN SWAB VALVE AND LOWER RAMS,THEN OPEN. 09:30 - 11:00 ' 1.50 CASING N RUNPRD REPLACE BLIND SHEAR RAMS AND SEALING ELEMENTS. TEST TO 250/3500 PSI,GOOD. 11:00 - 12:00 1.00 CASING P RUNPRD PICKUP INJECTOR TO TEST CT STRIPPER AND INNER REEL VALVE. PT BOTH TO 250/ 3500 PSI, GOOD. '12:00 - 12:30 0.50 CASING P RUNPRD BLOW DOWN KILL LINE,STAND BACK INJECTOR. 12:30 - 13:30 1.00 CASING P RUNPRD PREP RIG FLOOR TO RUN MCNL TOOLS. BRING LOGGING TOOLS ONTO RIG. 13:30 - 14:00 0.50 CASING P RUNPRD START M/U MCNL/CLEANOUT BHA, 14:00 - 14:30 0.50 CASING N RUNPRD 1-1/2 MT CONNECTION ON SLB XO ISN'T MAKING UP PROPERLY. GET A NEW ONE FROM SLB BASE IN DEADHORSE. 14:30 - 19:00 4.50 CASING P RUNPRD CONTINUE M/U LOGGING/CLEANOUT BHA. 19:00 - 19.20 0.33 CASING P RUNPRD PJSM TO CONTINUE MU CSH 19:20 - 21:15 1.92 CASING P RUNPRD MU CSH FOR CLEAN OUT RUN 21:15 - 22:30 1.25 CASING P RUNPRD VALVE DRILL AND ALL CSH IS MU CIRC 10 BBLS DOWN CSH BEFORE MU INJECTOR MU BTT MHA AND 2 JTS PH6 MU SWIVEL AND STAB ON Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 5 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project: Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor NORDIC CALISTA UWI: 500292065300 Active Datum: 19: 11 9/13/1981 00:00©71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 CASING P RUNPRD RIH WITH LOGGING AND CLEAN OUT BHA MIDNIGHT DEPTH 9300' 1/6/2011 ,00:00 - 00:30 0.50 CASING P RUNPRD CONTINUE FROM01/05/2011 CONTINUE RIH @ 9300' WT FLUCTUATING @-9480'COULD BE IN CEMENT. PU BACK THROUGH AND BRING PUMP ONLINE AT 1.5 BPM 00:30 - 02:25 1.92 CASING P RUNPRD CMT RETURNS AT SURFACE, REDUCE RIH SPEED UNTIL RETURNS CLEAN UP PU AND CONTINUE CIRCULATING CEMENT RETURNS OUT 02:00 DENSITY STILL UP,SAMPLE SILL HAS SOFT CLUMPS OF CMT 02:25 - 02:45 0.33 CASING P RUNPRD RETURNS HAVE CLEANED UP ENOUGH TO KEEP,PAUSE AT 10000'TO START LOGGING 02:30 START LOGGING DOWN AT 30 FPM TAG AT 10977' 02:45 - 02:55 0.17 CASING P RUNPRD CAN'T GET PAST 10204.7', COME ONLINE AND AND TRY MILLING DOWN AT A FASTER THAN NORMAL MILLING PACE TO SEE IF WE CAN MILL PAST OBSTRUCTION i 02:55 - 05:00 2.08 CASING • P RUNPRD LOOKS LIKE WE HAD A LITTLE BRIDGE OF HARD CMT AT 10205',RIH TAG AND STALL AT 10220', PU AND WORK DOWN 1TAG AGAIN AT 10880' MIX HI-VIS PILL TO PUMP A 20 BBL SWEEP TO CARRY CMT OOH CMT RETURNS AT SURFACE FROM THE FIRST 2 SMALL BRIDGES WE MILLED THROUGH 05:00 - 06:30 1.50 CASING N STUC ! RUNPRD !TAG PB AT 12920.9'PU TO CONFIRM DEPTH !AND WE ARE PULLING HEAVY AND PUMP PRESSURE IS 1000 PSI HIGHER AT 0.8 BPM. ,ATTEMPT TO PICK UP FOR LOGGING UP !PASS,CT IS STUCK ON BOTTOM. WORK PIPE TO 72K 5 TIMES, NO MOVEMENT. 'PUMP PRESSURE INCREASES TO 0.2 BPM/ !1200 PSI. CONTINUE PUMPING PERIODICALLY TO KEEP FROM FREEZING UP. 06:30 - 07:30 1.00 CASING N STUC RUNPRD DISCUSS PLAN FORWARD WITH ODE 'ANCHORAGE AND CTD SUPT. DECIDE TO PRESSURE UP THE CT X TUBING ANNULUS AND DUMP THE PRESSURE QUICKLY WHILE WORKING THE PIPE. PIPE COMES FREE ON THE 3RD TRY. 07:30 - 12:00 4.50 CASING P RUNPRD WIPER TRIP BACK TO 10000 FT. DISCUSS PLAN FORWARD WITH ANC OFFICE. DECIDE TO POOH AND DOWNLOAD LOG DATA. START TRIP SHEET AND POOH. AT BOTTOMS UP AFTER FREEING THE CT SOME GREEN CEMENT AND MILLED CEMENT COMING ACROSS SHAKER. 12:00 - 12:15 j 0.25 CASING P RUNPRD j PJSM FOR STAND BACK CSH 12:15 - 16:00 3.75 i CASING ! P j RUNPRD TAG STRIPPER,L/D 2 JTS OF PH6. OPEN CIRC SUB WITH 1/2"BALL. !STAND BACK 1.25"CSH. OFFLOAD LOGGING TOOLS AND DOWNLOAD 'DATA. Printed 2/23/2n11 11 37 56AM • North America -ALASKA- BP Page 6 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project: Prudhoe Bay Site: PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor: NORDIC CALISTA UWI: 500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task I Code NPT NPT Depth Phase i Description of Operations (hr) _ (ft) 16:00 - 17:00 1.00 CASING N t I RUNPRD STAND BY FOR PLAN FORWARD FROM ANCHORAGE. 17:00 - 17:40 0.67 CASING P RUNPRD RIG UP FOR LINER LAP TEST. 17:40 - 18:15 0.58 CASING P RUNPRD START LAP TEST 18:15 - 18:30 0.25 CASING P RUNPRD LAP TEST FAILED,CREW&WSL CHANGE OUT 18:30 - 19:45 1.25 CASING P RUNPRD REVIEW LOGS WITH SLB MEM LOGGERS, CALL TOWN ODE TO DISCUSS TIE IN UP PASS BOTTOM DEPTH COULD NOT BE USED AND NO FLAG WAS PAINTED ON THE WAY OUT.MEM LOGGER NEEDS THE UP PASS FIRST MOVEMENT TO CORALATE DOWN PASS AND DID NOT GET IT.A DEPTH REFERENCE FLAG WAS NOT PAINTED THAT COULD BE USED TO CORRECT.CALL ODE TO DISCUSS OUR OPTIONS FOR TIE IN ON PERF RUN 19:45 - 19:55 0.17 CASING P . RUNPRD PLAN FORWARD.LOG SHOWS TOL,PUP i JOINT,X-NIPPLE AND FIRST X-OVER WITH IN • 4'OF WHERE THEY ARE BASED ON THE LINER SUMMARY.BASED ON THAT,THE LATCH COLLAR IS 2711.87'FROM THE TOL. TOL IS 10222'ON THE LOG,ADD 2711.87'AND PBTD IS 12933.87'.ODE WILL SEND PLAN FORWARD VERIFYING APPROVAL TO RUN WITH THESE NUMBERS. 19-55 - 20:20 0.42 CASING P RUNPRD RE-TEST LAP USING BOP TEST PUMP.TO MANY VALVES ON THE HP MANIFOLD THAT COULD LEAK USING THE RIG PUMP LOW PT=360 PSI LOST 4 PSI IN 5 MIN.GO TO HIGH PT HIGH PT=2501 PSI AT 20:15 PRESSURE LOSS IN 3 MIN WAS>250 PSI, LAP TEST FAILED 20:20 - 21:15 0.92 CASING P RUNPRD ,WAIT FOR APPROVAL AND TO SEE IF WTL WANTS TO RERUN LOG 21:15 - 21:40 0.42 CASING P RUNPRD GOT ETL APPROVAL TO NOT RERUN LOG AND PROCEED WITH CLEANOUT RUN PJSM TO MU NOZZLE BHA 21:40 - 00:00 2.33 CASING P RUNPRD MU NOZZLE BHA FOR CLEAN OUT RUN CHECKING EACH CONNECTION TO MAKE SURE NOTHING CAME LOOSE FROM MOTOR STALLS OR PULLING HEAVY CONTINUE MU CSH ------------- 1/7/2011 00:00 - 00:35 0.58 CASING P RUNPRD 'CONTINUE OPS FROM 01/06/2011 TALL CSH RAN PU INJECTOR 00:35 - 02:00 1.42 CASING P RUNPRD RIH AT MAX RATE 3.7 BPM&4K PSI SET OUT MM DENSITY ALARM TO 8.6 PPG 10100'WT CHECK 34K 02:00 - 03:00 1.00 CASING P RUNPRD AT TOL REDUCE RIH SPEED TO 30 FPM AS PER PLAN WT CHECK 34K UP AND 2.7 BPM @ 3920 PSI 03:00 - 03:40 0.67 CASING P RUNPRD SWAP TO 30 BBL HI-VIS PILL 2.5 BPM 3760 PSI Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 7 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum:19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date ' From-To Hrs Task Code NPT NPT Depth Phase ' Description of Operations (hr) (ft) 03:40 - 04:45 1.08 CASING P RUNPRD •50'FROM BOTTOM, REDUCE SPEED TO 10 FPM AS PER PLAN PUMPING 2.5 BPM @ 3780 PSI 12910'START OF 30 BBL PILL AT NOZZLE TAG AT 12985', PU AND TAG TO CONFIRM_ 12985' IS GOOD PU AT 10 FPM UNTIL BOTTOMS UP LOOKING •FOR ANYTHING THAT COMES ACROSS SHAKER 2.5 BPM @ 3840 PSI 04:45 - 05:15 0.50 CASING P RUNPRD RETURNS AT SHAKER WERE CLEAN 60 BBLS BEFORE AND 30 BBLS AFTER HI-VIS PILL GOT TO SURFACE.SWAP TO PERF PILL 05:15 - 08:00 2.75 CASING P RUNPRD 2 BBLS OUT, REDUCE RATE AND POOH LAYING IN PERF PILL AFTER PERF PILL IS OUT GO TO 2.4 BBLJMIN, 08:00 10:20 2.33 CASING I P RUNPRD POOH.S I. - TAG STRIPPER,STAND BACK CSH. 10:20 - 10:35 0.25 CASING I P RUNPRD PJSM FOR BRINGING PERF GUNS ONTO RIG. DROPPED OBJECTS AND OVERHEAD LOADS • WERE DISCUSSED. 10:35 - 12'00 1.42 CASING P RUNPRD LOAD PERF GUNS INTO PIPE SHED. PREP RIG FLOOR TO RUN PERF GUNS. 12:00 - 16'00 4.00 CASING P RUNPRD M/U PERF ASSEMBLY,65 PERF GUNS,5/8". DISCONNECT,49 JTS 1.25"CSH,3/4" DISCONNECT,DBPV,2 JTS PI-16. BHA OAL=3002.71 FT. 16:00 - 18!00 2.00 CASING P RUNPRD RIH WITH PERF BHA#12. 18:00 - 18:30 0.50 I CASING P ! RUNPRD CREW CHANGE CONTINUE RIH 18:30 - 19:00 0.50 CASING P RUNPRD CORRECT TO EOP FLAG AT 9713'AND CORRECT DEPTH-45.5'TO 12715.7' 19:00 - 19'05 0.08 CASING P RUNPRD TAG PU AND RETAG TO CONFIRM DEPTH& WT GOOD TAG, PU TO WT OF 42K AND STOP. CORRECT DEPTH TO 12934' 19:05 - 19:20 0.25 CASING P RUNPRD PUH TO 12325'AND START PUMP SEQUENCE TO FIRE GUNS LINE UP TO PUMP THROUGH CHOKE PRACTICE PUMP CYCLES 19:20 - 19'35 0.25 CASING P RUNPRD START PUMP SEQUENCE TO FIRE GUNS 10 SEC FROM FIRE PUH SLOW AND GUNS FIRED ON DEPTH AT 12920' 19:35 - 21'50 2.25 CASING P I RUNPRD NO RETURNS CLOSE CHOKE AND CONTINUE PUMPING PUMPED 4 BBLS AND STARTED GETTING WHP CONTINUE POOH AT 20 FPM PUMPING AT 0. BPM TAKING RETURNS SHOT 1060'OF 2.0"6 SPF 2006PJ PERF GUNS FROM 11560'-11940',12050'- 12670'&12860' (/J 12920' 21:50 - 22:20 0.50 CASING P RUNPRD STOP ABOVE LINER TO FLOW CHECK WELL, LOST 15 BBLS DURING TRIP OUT 20 MIN INTO FLOW CHECK PUMP 0.5 BBLS TO WARM COIL GOT RETURNS JUST AS WE SHUT DOWN THE PUMP 22:20 - 23:30 1.17 CASING P RUNPRD GOOD FLOW CHECK,CONTINUE POOH PUMPING DOWN COIL TAKING RETURNS Printed 2/23/2011 11:37:56AM * North America -ALASKA- BP Page 8 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay I Site:PB DS 15 —~ Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To 1 Hrs Task Code ! NPT NPT Depth Phase Description of Operations (hr) (ft) 23:30 - 23:50 0.33 CASING P RUNPRD PJSM TO LD PERF BHA 23:50 - 00:00 0.17 CASING P RUNPRD OOH,FLOW CHECK WELL FOR 30 MIN CONTINUE PERF OPS ON 01/08/2011 1/8/2011 00:00 - 00:10 0.17 CASING P RUNPRD PUMP 0.5 BBLS TO WARM COIL LOST 5.5 BBLS ON TRIP OUT START FLOW TEST 00:10 - 00:20 0.17 CASING P RUNPRD PUMP 0.5 BBLS TO WARM COIL 00:20 - 00:45 0.42 CASING P RUNPRD GOOD FLOW CHECK,PU INJECTOR AND REMOVE FROM BHA 00:45 - 02:10 1.42 CASING P RUNPRD START PULLING STANDS 02:10 - 02:30 0.33 CASING P RUNPRD 1 STAND LEFT,PU SAFETY JOINT AND MU TO CSH TO PREP TO LD SPENT GUNS RU FARR TONGS 02:30 - 03:00 0.50 CASING P RUNPRD PJSM TO LD SPENT GUNS 03:00 - 07:30 4.50 CASING P RUNPRD LD 2 JTS OF CSH LD SPENT GUNS. 07:30 - 09:00 1.50 CASING P RUNPRD OFFLOAD SPENT PERF GUNS FROM RIG AND CLEAN UP PIPE SHED. 09:00 - 09:30 0.50 CASING P RUNPRD M/U LINER TOP PACKER BHA#13. 09:30 - 11:30 2.00 CASING P RUNPRD RIH WITH LINER TOP PACKER. SOME GAS CUT RETURNS FROM THE PERF GUNS, STOP AT 2100 FT AND CIRC BOTTOMS UP. FLOW CHECK AFTER BOTTOMS UP IS NEGATIVE. CONTINUE RIH,CLEAN RETURNS FOR REST — OF TRIP. 11:30 - 12:00 0.50 1 CASING P RUNPRD TAG AT 10257 FT WITH MIN PUMP RATE. NO PRESSURE BUMP, RETURNS ARE STEADY. HAVE NOT STUNG INTO THE DEPLOYMENT SLEEVE. PICK UP WITH 10K OVERPULL. STACK DOWN AGAIN AT THE SAME DEPTH WITH NO INDICATION THAT THE SEAL , ASSEMBLY HAS ENTERED THE DEPLOYMENT SLEEVE. 12:00 - 15:00 3.00 CASING P RUNPRD POOH. 15:00 - 15:30 ( 0.50 CASING N , WAIT RUNPRD RECEIVE STANDBY ORDERS DUE TO SPILL AT PUMP STATION 1 M/U NOZZLE AND CHECK VALVES. 15:30 - 18:00 2.50 CASING N WAIT RUNPRD RIH TO 3000 FT AND CIRC MIN RATE. 1 STANDBY FOR ORDERS. WHILE WAITING,SET UP SCAFFOLDING IN S0.• PIPE SHED TO REPAIR AND CLEAN V-DOOR ROOF. 5-44 18:00 - 00:00 6.00 CASING N WAIT RUNPRD CONTINUE STBY WOO WHILE CIRCULATING AT 3-4K FT 1/9/2011 00:00 - 06:00 6.00 CASING N WAIT RUNPRD CONTINUE TO WAIT ON ORDERS CIRCULATING FROM 3-4K FT KEEPING TUBING WARM Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 9 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site: PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor: NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00©71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 18:00 12.00 CASING N WAIT RUNPRD CONTINUE STANDBY. CT IS AT 3000-4000 FT,CIRC MIN RATE AND MOVE PIPE OCCASIONALLY. WELLBORE CONDITIONS MOSTLY STABLE, LOSING ABOUT 2 BBLS PER 12 HR TOUR. CONTINUE RIG HOUSEKEEPING AND RE-SKINNING CEILING AT V-DOOR. REPLACE PUMP#1 VALVE SEATS. SLB AND BHI CREWS CONTINUE HOUSEKEEPING AND ORGANIZING THEIR WORK AREAS. 18:00 - 00'00 6.00 CASING N WAIT RUNPRD CONTINUED HOUSEKEEPING AND SMALL PROJECTS CONTINUE CIRCULATING THROUGH COIL RECIPROCATING FROM 3-4K FT KEEPING WB WARM 1/10/2011 00:00 - 06:00 6.00 CASING N WAIT RUNPRD WAITING ON ORDERS CIRCULATING AT 0.25 BPM AT 51 PSI CONTINUE WORKING ON SMALL PROJECTS 06:00 - 18:00 12.00 CASING N WPARK AIT) RUNPRD :AND ACLRIG TANING T 3000-4000 FT AND CIRC 0.28 BPM/ 60 PSI. CLEAN WALLS ABOVE STEERING MODULE IN PUMP ROOM#1. FOUND LOTS OF MUSHROOMED 1502 WINGS AND GRIND THEM DOWN. OFFLOAD THE STAIRS FROM THE RIG THAT [WERE IN THE PIPE SHED. INSPECT ALL 1ST AID CABINETS ON RIG AND [OFFICE TRAILER FOR OUTDATED MATERIAL. FIND GAPS AND HOLES IN PIT ROOM WALL AND CAULK THEM UP. CLEANED RUBBER MATS ON RIG FLOOR. WELDED NEW HANDLE ON CHARGE PUMP GUARD. FOUND 4 PAD EYES IN REEL HOUSE NOT IN THE REGISTER. 18:00 - 00.00 6.00 CASING N WAIT i RUNPRD CIRCULATING AT 0.25 BPM AT 55 PSI CONTINUE WORKING ON HOUSEKEEPING AND PAINTING PROJECTS CHECK BOOSTER TIRES, PLANITARIES, CLEAN RIG AND INSULATE STEAM LINES 1/11/2011 00:00 - 06:00 6.00 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO RETURN TO WORK [CIRCULATING AT 0.25 BPM AT 55 PSI CONTINUE WORKING ON HOUSEKEEPING AND PAINTING PROJECTS WORKING ON CRITICAL ITEMS CHECK LIST CONTINUE INSULATING STEAM LINES Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 10 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:OOAM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) 06:00 - 18:00 12.00 CASING , N WAIT (ft) RUNPRD CONTINUE CIRC 0.42 BPM/99 PSI. iCT IS AT 3900 FT. ;PERFORM MONTHLY CRITICAL SPARES CHECKLIST. BLIND OFF ASSEMBLY LUGS IN REEL HOUSE THAT WERE FOUND YESTERDAY. PAINT VALVE BARS AND HANDLES. UNHOOK OLD BOILER BLOWDOWN TANK • AND OFFLOAD FROM RIG. • PREP TO PLACE NEW BLOWDOWN TANK INTO POSITION. CONTINUE RIG HOUSEKEEPING AND ORGANIZING WORK AREAS. 18:00 - 00:00 6.00 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO RETURN TO WORK. CIRCULATING AT 0.25 BPM AT 60 PSI. INSTALL NEW BOILER BLOWDOWN TANK. CONTINUE WORKING ON HOUSEKEEPING AND PAINTING PROJECTS. 1/12/2011 00:00 - 06:00 6.00 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO 1 RETURN TO WORK. CIRCULATING AT 0.30 BPM AT 77 PSI. CONTINUE WORKING ON HOUSEKEEPING • • AND PAINTING PROJECTS. INSULATED STEAM LINES ON BOILER BLOWDOWN TANK. OFF-LOADED TRAILERS AT A PAD. PUT SECOND COAT OF PAINT ON CATTLE SCHUTE. 06:00 - 07:00 1.00 CASING N WAIT RUNPRD CONTINUE STANDBY WAITING ON ORDERS TO RETURN TO WORK. 107:00 08:00 1.00 BOPSUR N WAIT RUNPRD POOH FOR FUNCTION TEST OF BOPS. WHILE POOH CIRC 1.2 BPM�a 280 PSI. 08:00 - 09:30 1.50 BOPSUR N WAIT ' RUNPRD TAG STRIPPER AND L/D CHECK VALVE AND NOZZLE BHA. FUNCTION TEST ALL BOP COMPONENTS. • PJSM THEN M/U NOZZLE AND CHECK VALVES AGAIN. 09:30 - 18.00 8.50 CASING N WAIT RUNPRD RIH TO 3000 FT AND PARK,CONTINUE CIRC AT MIN RATE. NEEDLE GUN AROUND NEW BLOWDOWN TANK. MOVE SCAFFOLDING CLOSER TO RIG FLOOR AND CLEAN WALLS THERE. PAINT HAND SLIPS AND HAND TOOLS. 18:00 - 00:00 6.00 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO 'RETURN TO WORK. CIRC.AT 3000 FT. PUMPING AT 0.30 BPM AT 66 PSI. CONTINUE CLEANING CATTLE CHUTE AREA AND RIG WALLS. • PREP AND PAINT MUD MANIFOLD. • PREP FLOOR IN BOILER ROOM FOR PAINT. • 1/13/2011 00:00 - 06:00 6.00 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO RETURN TO WORK. CIRC.AT 3000 FT AT 0.25 BPM AND 55 PSI. 1 PAINTED NEW BOILER BLOWDOWN TANK. PREP AND PAINT FLOOR IN PIPE SHED ON DRILLER'S SIDE. PREP FLOOR IN BOILER ROOM FOR PAINT. Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 11 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor: NORDIC CALISTA UWI:500292065300 Active Datum:19:11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 18:00 12.00 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO RETURN TO WORK. CIRC.AT MIN RATE AT 3000 FT. REMOVE GENERATOR FROM CAMP AND PREP FOR TRANSPORT TO ANCHORAGE. PAINT HANDLING EQUIP.AND IN BOILER ROOM. 18:00 - 00:00 6.00 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO RETURN TO WORK. CIRC.AT 0.5 BPM AT 106 PSI. CONTINUE PAINTING AND GENERAL RIG HOUSE KEEPING. CONTINUE WORKING ON MONTHLY CRITICAL ITEMS LIST. 1/14/2011 00:00 - 01:45 1.75 CASING N WAIT RUNPRD CONTINUE STBY WAITING ON ORDERS TO RETURN TO WORK. CIRC.AT 0.5 BPM AT 110 PSI. CONTINUE GENERAL HOUSE KEEPING AND WORK ON CRITICAL ITEMS LIST. 01:45 - 02:15 0.50 CASING N WAIT RUNPRD HELD RIG EVACUATION DRILL FOLLOWED BY AAR. ALL RIG PERSONNEL RESPONDED AND 02:15 06:00 3.75-- CASING N WAIT ACCOUNTEDOFOR. - � RUNPRD CONTINUE STBY WHILE CIRC.AT 0.5 BPM. 06:00 - 08:30 2.50 CASING N WAIT RUNPRD 'CONTINUE CIRC MIN RATE AT 3140 FT. 0.45 BPM/110 PSI. 08:30 - 09:00 0.50 CASING N. WAIT RUNPRD CONDUCT H2S EXERCISE WITH RIG EVACUATION. CONDUCT AAR AND IDENTIFY LESSONS LEARNED. 09:00 - 18:00 9.00 CASING N WAIT j RUNPRD RESUME CIRCULATION AT MIN RATE. CONTINUE PAINTING AND HOUSEKEEPING. 18:00 - 00:00 6.00 CASING N WAIT RUNPRD CIRCULATING AT MIN RATE OF 0.45 BPM AT 110 PSI. PERFORMING GENERAL RIG HOUSE KEEPING. PAINT CHOKE MANIFOLD. R/D AND OFF-LOADED SCAFFOLDING. 1/15/2011 00:00 - 06:00 6.00 CASING N WAIT RUNPRD CONTINUE STANDBY WAITING ON ORDERS TO RETURN TO WORK. CIRC.AT 0.45 BPM AND 110 PSI. PERFORMING GENERAL RIG MAINTENANCE AND HOUSKEEPING. 06:00 - 10:00 4.00 CASING N WAIT RUNPRD CONTINUE STANDBY. START PAINTING TABS THAT WERE 5 INSTALLED ON PIPE SHED DOOR TO HOLD e 10:00 10:20 0.33 CASING N WAIT RUNPRD REIN IN PACE. - RECEIVE WORD THAT THE IMT HAS RELEASED RESOURCES FOR US TO _CONTINUE WITH NORMAL OPERATIONS. tr"I it' PJSM FOR RETURNING TO WORK. 10:20 - 11:30 1.17 CASING N WAIT RUNPRD POOH. 11:30 - 12:00 0.50 CASING N DPRB RUNPRD L/D NOZZLE AND CHECK VALVES. LOAD BTT EQUIPMENT ONTO RIG. 12:00 - 12:30 0.50 CASING N DPRB RUNPRD M/U BHA#15-3.80 MILL,MOTOR,JARS,3/4" DISCONNECT, DBPV,2 JTS PH6. BHA OAL=90 FT. 12:30 - 15:00 2.50 CASING N DPRB RUNPRD RIH BHA#15. PUMP 1.24/538 PSI THROUGH BIT. Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 12 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type: COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:00 - 15:50 0.83 CASING N , DPRB RUNPRD GO TO 0.5 BPM,TAG AT 10250 FT AND PICK UP IS 35K CLEAN. GO TO FULL RATE AND EASE DOWN, STALL AT 10251 FT. PICK UP AGAIN AND TIME MILL PAST. 100-150 PSI MW. STALL AGAIN AT 10251.7 FT, PICKUPS ARE CLEAN. 15:50 - 16:10 0.33 CASING N DPRB RUNPRD CONTINUE WORKING CT DOWN,AT 10252 FT NO MOTOR WORK SO INCREASE ROP TO 1 FT/MIN. TAG AT 10269.9 FT WITH MOTOR WORK. NOT DRILLING OFF. LIKELY TOP OF LINER HERE. 16:10 - 16'.25 0.25 CASING N DPRB RUNPRD PICK UP BACK TO 10250 TO CLEAN UP AREA. RIH BACK TO 10270 FT TO TRY AND DRILL PAST,STACKING WT WITH STEADY 400-500 PSI MOTOR WORK, NO FURTHER PROGRESS CALL THIS TOP LINER. '16:25 - 16:40 0.25 CASING N DPRB RUNPRD PUMP 20 BBLS HI-VIS SWEEP AROUND. RIH TO TOP LINER AND CORRECT TO 10222 FT. PICK UP AND PAINT A FLAG 10100 FT EOP. 16:40 - 18:30 1.83 CASING N DPRB RUNPRD POOH PUMP 2.64 BPM/1540 PSI. TAG UP AND FLOW CHECK WELL-NO FLOW. 18:30 - 18:45 0.25 CASING N DPRB RUNPRD PJSM FOR UD 3.80"CLEANOUT BHA#15. 18:45 - 19:15 0.50 CASING N DPRB RUNPRD BREAK OFF INJ.AND PLACE OVER BUNGHOLE. L/D BHA#15. 19:15 - 19:45 0.50 CASING N I DPRB RUNPRD M/U BHA#16-2.90"POLISH MILL,3.75"TOP 4-4 DRESS NO-GO MILL W/BRASS, MOTOR, JARS,3/4"DISCONNECT, DFCV,2 JTS 2-3/8" PH6. BHA OAL=100.2 FT. 19:45 - 21:45 2.00 CASING . N DPRB RUNPRD RIH W/BHA#16 AT 100 FPM. 0.5 BPM AT 210 PSI. PVT=312 BBLS. 21:45 - 22:15 0.50 CASING N DPRB RUNPRD RIH CLEAN DOWN TO DEPLOYMENT SLEEVE. P/U,BRING PUMPS UP AND EASE DOWN. SEE PRESSURE SLIGHTLY TRENDING UP AT 10273'INDICATING TOL. CONTINUE DOWN AT 1 FPM AND NO-GO AT 10280'W/PUMPS AT 2.54 BPM. P/U AND GO BACK DOWN TWICE TO CONFIRM TOL. SEE PRESSURE SPIKE AND NO-GO AT SAME DEPTHS. PUMP 20 BBL HI-VIS PILL AROUND. WITH PILL AT BIT BEGIN POOH. 22:15 - 23:45 1.50 CASING N DPRB RUNPRD POOH W/BHA#16 PUMPING AT 2.8 BPM/ 1410 PSI. 23:45 - 00:00 0.25 CASING N DPRB RUNPRD PJSM FOR UD BHA. DISCUSS WELL CONTROL, HAZARDS,AND 50#RULE. 1/16/2011 00:00 - 00:45 0.75 CASING N DPRB RUNPRD TAG STRIPPER AND PERFORM FLOW CHECK. POP OFF INJECTOR AND INSPECT COIL FOR WEAR. UD 2.9"POLISH BORE MILL BHA. NO-GO SHOWED CLEAR AND EVEN SIGNS 'OF WEAR ALL THE WAY AROUND. Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 13 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.:NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor:NORDIC CALISTA UWI:500292065300 Active Datum:19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task ' Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:45 - 01:30 0.75 CASING N DPRB , RUNPRD M/U LTP SETTING BHA CONSISTING OF 45 KB LTP,4"GH RUNNING TOOL,3/4" DISCONNECT,AND 2 JTS 2-3/8"PH6. 01:30 - 03:30 2.00 CASING N DPRB RUNPRD 03:30 - 04:00 0.50 CASING N DPRB RUNPRD CONTINUE RIH AND SEE PRESSURE INCREASE AT 10274 FT. BRING DOWN PUMPS. STACK 10K DOWN AT 10283 FT TWICE TO CONFIRM DEPTH. P/U TO BALL DROP POSITION. LAUNCH BALL AND LINE UP TO DISPLACE W/ HOT WATER. BALL HEARD ROLLING OVER GOOSENECK AT 19 BBLS. AT 38 BBLS AWAY SLOW PUMPS FROM 2 BPM TO 0.5 BPM. BALL ON SEAT AT 43.3 BBLS. 04:00 - 04:15 0.25 CASING N DPRB RUNPRD OPEN BAKER CHOKE AND SET 10K DOWN. P/U TO CT WT+1 FT. PRESSURE UP CT TO 1800 PSI TO INIATE SETTING PACKER. SLACK 10K WT BACK DOWN AND 1 FT HIGHER AS EXPECTED. -- - -.._ ----- - -_—fir BLEED OFF CT PRESSURE AND START PT. 04:15 - 05:05 0.83 CASING N DPRB RUNPRD 05:05 - 05:15 0.17 CASING N DPRB RUNPRD BLEED OFF PRESSURE ON WELL AND PUMP SIDE OF KILL HCR. PRESSURE UP CT AND SHEAR OUT BALL SEAT AT 3500 PSI TO COMPLETE SETTING PACKER. 05:15 - 07:00 1.75 CASING N DPRB RUNPRD POOH W/PACKER SETTING ASSEMBLY. 07:00 - 08:00 1.00 CASING P RUNPRD TAG STRIPPER, LID LTP RUNNING ASSEMBLY. RECOVER 5/8"BALL. M/U FREEZE PROTECT BHA. 08:00 - 10:30 2.50 BOPSUR P POST RIH TO 2500 FT. WAIT FOR DRIVER FROM CH2 FOR MEOH TANKER. 'WHEN DRIVER ARRIVES,HOOK UP MEOH AND PUMP 45 BBLS INTO CT. FREEZE PROTECT WELL FROM 2500 FT. 11:00 - 14:00 3.00 RIGD P POST PRESSURE TEST BPV LUBRICATOR AND SET BPV. 14:00 - 15:00 1.00 RIGD P POST OFFLOAD BPV LUBRICATOR AND RUNNING TOOLS FROM RIG. 15:00 - 16:00 1.00 RIGD P POST 18:00 - 21:30 . 3.50 RIGD P POST CONTINUE INSPECTION OF RAMS AND CAVITIES. C/O VBR'S. EMPTY AND CLEAN PITS. 21:30 - 00:00 2.50 RIGD P POST 1PJSM FOR N/D BOPE. N/D BOPE. 1/17/2011 00:00 - 03:30 3.50 RIGD P POST FINISH WD BOPE. INSTALL AND TEST TREE CAP.250 PSI LOW/ 4000 PSI HIGH. TREE CAP 0-RING FAILS AT HIGH PRESSURE. REPLACE AND RE-TEST. FAILS AT HIGH PRESSURE AGAIN DUE TO BEING IMPROPERLY INSTALLED. Printed 2/23/2011 11:37:56AM North America -ALASKA- BP Page 14 of 14 Operation Summary Report Common Well Name: 15-11 AFE No Event Type:COM-ONSHORE(CON) Start Date: 1/3/2011 End Date: 1/17/2011 X3-00Y02-C(1,152,400.00) Project:Prudhoe Bay Site:PB DS 15 Rig Name/No.: NORDIC 2 Spud Date/Time:9/13/1981 12:00:00AM Rig Release: 1/17/2011 Rig Contractor NORDIC CALISTA UWI:500292065300 Active Datum: 19: 11 9/13/1981 00:00 @71.00ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) -I• (ft) • 03:30 - 04:45 1.25 RIGD N POST WAIT FOR DSM TO BRING OUT 0-RINGS FOR TREE CAP. 04:15-DSM ARRIVES BUT WITH IMPROPER SIZE 0-RINGS. 04:45-DSM ARRIVES WITH PROPER 0-RINGS. 04:45 - 05:30 0.75 RIGD N POST REPLACE O-RING AND RE-TEST-GOOD. 05:30 - 06:00 0.50 RIGD P POST CONTINUE R/D. RELEASE RIG AT 06:00. ALL FURTHER ENTRIES ON WELL A-39A. BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 15 15-11 - Slot 11 500292065300 15-11CPB1 Survey: MWD Survey Report - Geographic 04 January, 2011 Qbp Mill BAKER HUGHES Survey Report- Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 15-11 -Slot 11 Project: Prudhoe Bay TVD Reference: 57.6 @ 57.60ft(57.6) Site: PB DS 15 MD Reference: 57.6 @ 57.60ft(57.6) Well: 15-11 North Reference: True Wellbore: 15-11CPB1 Survey Calculation Method: Minimum Curvature Design: 15-11 CPB1 Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB DS 15,TR-11-14 Site Position: Northing: 5,958,837.36ft Latitude: 70°17'35.236 N', From: Map Easting: 676,296.98ft Longitude: 148°34'21.213 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 1.34 ° Well 15-11 API No 500292065300 Well Position +N/-S 0.00 ft Northing: 5,959,518.33 ft Latitude: 70°17'41.677 N +E/-W 0.00 ft Easting: 677,402.09 ft Longitude: 148°33'48.545 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 29.14 ft Wellbore 15-11CPB1 API No 500292065370 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (1 (°) (nT) BGGM2009 12/15/2010 21.96 80.95 57,712 Design 15-11CPB1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 10,753.85 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (0) 28.46 0.00 0.00 104.87 Survey Program Date: 12/29/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 86.60 9,586.60 2:Gyrodata cont.drillpipe m/(15-11) GYD-CT-DMS Gyrodata cont.drillpipe m/s 9,586.60 10,753.85 15-11B IIFR(15-11B) MWD+IFR+MS MWD+IFR+Multi Station 10,763.00 12,550.00 MWD(15-11CPB1) MWD MWD-Standard 1/4/2011 10:10:46AM Page 2 COMPASS 2003.16 Build 73 • MiltII BAKER HUGHES Survey Report- Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 15-11 -Slot 11 Project: Prudhoe Bay TVD Reference: 57.6 @ 57.60ft(57.6) Site: PB DS 15 MD Reference: 57.6 @ 57.60ft(57.6) Well: 15-11 North Reference: True Wellbore: 15-11CPB1 Survey Calculation Method: Minimum Curvature Design: 15-11 CPB1 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +EI-W Northing Easting (ft) (°) ( ) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 10,753.85 23.19 211.13 8,537.10 -2,703.33 4,500.83 5,956,922.15 681,965.18 70°17'15.076 N 148°31'37.412 W TIP 10,763.00 23.28 211.40 8,545.50 -2,706.41 4,498.96 5,956,919.03 681,963.38 70°17'15.046 N 148°31'37.467 W, KOP 10,782.63 20.92 208.00 8,563.69 -2,712.82 4,495.29 5,956,912.53 681,959.87 70°17'14.983 N 148°31'37.574 W 10,808.93 14.46 186.00 8,588.76 -2,720.25 4,492.74 5,956,905.05 681,957.49 70°17'14.910 N 148°31'37.649 W'i 10,821.95 13.07 168.00 8,601.41 -2,723.30 4,492.88 5,956,902.00 681,957.70 70°17'14.880 N 148°31'37.645 W'i 10,836.62 14.60 145.71 8,615.67 -2,726.46 4,494.26 5,956,898.88 681,959.16 70°17'14.849 N 148°31'37.604 W' 10,853.60 15.76 119.36 8,632.07 -2,729.36 4,497.48 5,956,896.05 681,962.45 70°17'14.820 N 148°31'37.511 W 10,868.88 17.48 101.14 8,646.72 -2,730.82 4,501.55 5,956,894.69 681,966.54 70°17'14.806 N 148°31'37.392 W 10,888.62 21.10 85.43 8,665.37 -2,731.11 4,508.00 5,956,894.55 681,973.00 70°17'14.803 N 148°31'37.204 W 10,909.36 25.55 71.12 8,684.42 -2,729.36 4,515.97 5,956,896.48 681,980.92 70°17'14.820 N 148°31'36.972 W 10,938.93 33.62 59.24 8,710.14 -2,723.10 4,529.07 5,956,903.06 681,993.87 70°17'14.882 N 148°31'36.590 W 10,969.03 40.88 41.95 8,734.15 -2,711.46 4,542.87 5,956,915.01 682,007.39 70°17'14.996 N 148°31'36.188 W 11,006.31 51.27 35.72 8,759.99 -2,690.52 4,559.57 5,956,936.35 682,023.59 70°17'15.202 N 148°31'35.701 W 11,040.28 60.36 26.13 8,779.08 -2,666.42 4,573.86 5,956,960.78 682,037.31 70°17'15.439 N 148°31'35.284 W 11,076.14 69.49 15.63 8,794.30 -2,636.12 4,585.30 5,956,991.33 682,048.03 70°17'15.737 N 148°31'34.950 W 11,105.66 77.92 9.21 8,802.58 -2,608.48 4,591.35 5,957,019.10 682,053.43 70°17'16.009 N 148°31'34.774 W 11,129.15 85.64 6.02 8,805.94 -2,585.46 4,594.42 5,957,042.19 682,055.95 70°17'16.235 N 148°31'34.684 W 11,158.70 91.23 359.36 8,806.75 -2,555.98 4,595.80 5,957,071.69 682,056.64 70°17'16.525 N 148°31'34.643 W 11,190.96 90.83 3.48 8,806.17 -2,523.74 4,596.60 5,957,103.94 682,056.68 70°17'16.842 N 148°31'34.619 W 11,219.14 89.48 7.66 8,806.09 -2,495.70 4,599.34 5,957,132.03 682,058.75 70°17'17.118 N 148°31'34.539 W 11,250.01 89.82 12.81 8,806.28 -2,465.33 4,604.82 5,957,162.52 682,063.51 70°17'17.416 N 148°31'34.379 W 11,284.83 91.44 19.14 8,805.90 -2,431.88 4,614.40 5,957,196.19 682,072.30 70°17'17.745 N 148°31'34.099 W 11,313.85 91.23 23.61 8,805.22 -2,404.87 4,624.97 5,957,223.44 682,082.23 70°17'18.011 N 148°31'33.790 W 11,343.08 90.15 27.90 8,804.87 -2,378.55 4,637.66 5,957,250.05 682,094.30 70°17'18.270 N 148°31'33.420 W 11,376.36 89.72 32.91 8,804.91 -2,349.86 4,654.50 5,957,279.13 682,110.46 70°17'18.552 N 148°31'32.929 W 11,406.70 88.90 38.19 8,805.27 -2,325.18 4,672.13 5,957,304.21 682,127.50 70°17'18.794 N 148°31'32.415 W 11,437.25 87.08 41.10 8,806.34 -2,301.68 4,691.61 5,957,328.17 682,146.41 70°17'19.025 N 148°31'31.847 W' 11,466.93 86.93 44.64 8,807.89 -2,279.96 4,711.77 5,957,350.36 682,166.06 70°17'19.239 N 148°31'31.259 W 11,497.71 89.39 48.76 8,808.88 -2,258.87 4,734.16 5,957,371.97 682,187.93 70°17'19.446 N 148°31'30.606 W 11,525.99 90.46 52.86 8,808.92 -2,241.00 4,756.07 5,957,390.35 682,209.42 70°17'19.622 N 148°31'29.968 W' 11,556.00 90.00 55.20 8,808.80 -2,223.38 4,780.36 5,957,408.54 682,233.28 70°17'19.795 N 148°31'29.260 W 11,585.44 90.74 51.38 8,808.61 -2,205.78 4,803.95 5,957,426.68 682,256.45 70°17'19.968 N 148°31'28.572 W 11,617.34 90.06 48.19 8,808.39 -2,185.19 4,828.31 5,957,447.84 682,280.31 70° 17'20.170 N 148°31'27.862 W 11,650.39 88.90 43.33 8,808.69 -2,162.14 4,851.98 5,957,471.44 682,303.43 70°17'20.397 N 148°31'27.172 W' 11,682.05 89.42 39.30 8,809.15 -2,138.37 4,872.87 5,957,495.70 682,323.76 70°17'20.630 N 148°31'26.562 W 11,714.21 89.75 34.34 8,809.38 -2,112.63 4,892.14 5,957,521.88 682,342.41 70°17'20.883 N 148°31'26.000 W 11,743.48 89.14 30.41 8,809.67 -2,087.92 4,907.81 5,957,546.96 682,357.49 70°17'21.126 N 148°31'25.543 W 11,773.42 88.53 26.90 8,810.28 -2,061.65 4,922.16 5,957,573.55 682,371.22 70°17'21.385 N 148°31'25.125 W 11,803.10 88.28 23.51 8,811.10 -2,034.81 4,934.79 5,957,600.68 682,383.21 70°17'21.648 N 148°31'24.756 W 11,832.69 88.13 19.97 8,812.03 -2,007.35 4,945.75 5,957,628.40 682,393.52 70°17'21.919 N 148°31'24.437 W 11,862.73 89.23 15.97 8,812.72 -1,978.78 4,955.01 5,957,657.17 682,402.10 70°17'22.199 N 148°31'24.166 W 11,892.99 89.69 12.32 8,813.01 -1,949.45 4,962.40 5,957,686.67 682,408.80 70°17'22.488 N 148°31'23.950 W 11,921.05 93.04 10.64 8,812.34 -1,921.96 4,967.98 5,957,714.28 682,413.73 70°17'22.758 N 148°31'23.787 W 11,951.70 94.05 7.77 8,810.44 -1,891.77 4,972.88 5,957,744.58 682,417.91 70°17'23.055 N 148°31'23.644 W 11,980.36 95.25 4.24 8,808.12 -1,863.36 4,975.87 5,957,773.04 682,420.23 70°17'23.334 N 148°31'23.556 W 12,010.38 94.94 0.22 8,805.45 -1,833.49 4,977.03 5,957,802.93 682,420.69 70°17'23.628 N 148°31'23.522 W 12,047.73 94.57 355.08 8,802.35 -1,796.32 4,975.50 5,957,840.06 682,418.28 70°17'23.994 N 148°31'23.565 W 12,076.63 94.42 350.45 8,800.09 -1,767.74 4,971.88 5,957,868.54 682,413.98 70°17'24.275 N 148°31'23.671 W 12,106.71 94.11 346.04 8,797.85 -1,738.38 4,965.77 5,957,897.74 682,407.18 70°17'24.564 N 148°31'23.848 W 12,135.34 96.24 343.32 8,795.27 -1,710.88 4,958.24 5,957,925.05 682,399.00 70°17'24.834 N 148°31'24.067 W'. 12,166.34 97.16 339.79 8,791.65 -1,681.68 4,948.50 5,957,954.01 682,388.58 70°17'25.121 N 148°31'24.350 W 12,196.10 96.67 338.17 8,788.07 -1,654.11 4,937.90 5,957,981.33 682,377.34 70°17'25.393 N 148°31'24.658 W 12,227.57 95.16 341.61 8,784.82 -1,624.72 4,927.14 5,958,010.46 682,365.89 70°17'25.682 N 148°31'24.971 W 1/4/2011 10:10:46AM Page 3 COMPASS 2003.16 Build 73 MI BAKER HUGHES Survey Report-Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 15-11 -Slot 11 Project: Prudhoe Bay TVD Reference: 57.6 @ 57.60ft(57.6) Site: PB DS 15 MD Reference: 57.6 @ 57.60ft(57.6) Well: 15-11 North Reference: True Wellbore: 15-11CPB1 Survey Calculation Method: Minimum Curvature Design: 15-11 CPB1 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,256.75 94.05 345.25 8,782.48 -1,596.84 4,918.85 5,958,038.12 682,356.94 70°17'25.956 N 148°31'25.212 W 12,289.73 91.72 348.67 8,780.82 -1,564.76 4,911.42 5,958,070.02 682,348.75 70°17'26.271 N 148°31'25.428 W 12,319.63 93.56 352.01 8,779.44 -1,535.32 4,906.41 5,958,099.33 682,343.05 70°17'26.561 N 148°31'25.574 W 12,348.10 93.66 355.02 8,777.65 -1,507.09 4,903.20 5,958,127.47 682,339.18 70°17'26.839 N 148°31'25.667 W 12,379.34 94.42 357.88 8,775.45 -1,476.00 4,901.27 5,958,158.52 682,336.51 70°17'27.145 N 148°31'25.722 W' 12,409.72 93.50 1.28 8,773.35 -1,445.69 4,901.05 5,958,188.80 682,335.58 70°17'27.443 N 148°31'25.728 W'' 12,441.97 92.98 7.33 8,771.52 -1,413.60 4,903.46 5,958,220.94 682,337.23 70°17'27.758 N 148°31'25.657 W 12,483.35 92.36 12.63 8,769.59 -1,372.91 4,910.62 5,958,261.79 682,343.43 70°17'28.158 N 148°31'25.448 W 12,550.00 92.36 12.63 8,766.85 -1,307.92 4,925.19 5,958,327.09 682,356.45 70°17'28.797 N 148°31'25.022 W TD 1/4/2011 10:10:46AM Page 4 COMPASS 2003.16 Build 73 MMAU BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 15 15-11 - Slot 11 500292065300 15-11C Survey: MWD Survey Report - Geographic 04 January, 2011 Qbp Mill BAKUR HUGHES Survey Report- Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 15-11 -Slot 11 Project: Prudhoe Bay TVD Reference: 57.6 @ 57.60ft(57.6) Site: PB DS 15 MD Reference: 57.6 @ 57.60ft(57.6) Well: 15-11 North Reference: True Wellbore: 15-11C Survey Calculation Method: Minimum Curvature Design: 15-11C Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB DS 15,TR-11-14 Site Position: Northing: 5,958,837.36ft Latitude: 70°17'35.236 N From: Map Easting: 676,296.98ft Longitude: 148°34'21.213 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 1.34 ° Well 15-11 API No 500292065300 Well Position +N/-S 0.00 ft Northing: 5,959,518.33 ft Latitude: 70°17'41.677 N +E/-W 0.00 ft Easting: 677,402.09 ft Longitude: 148°33'48.545 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 29.14 ft Wellbore 15-11 C API No 500292065303 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (') (nT) BGGM2009 1/4/2011 21.94 80.95 57,714 Design 15-11C Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 11,284.83 Vertical Section: Depth From(TVD) +N/-S +EI-W Direction (ft) (ft) (ft) r) 28.46 0.00 0.00 96.88 Survey Program Date: 1/4/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 86.60 9,586.60 2:Gyrodata cont.drillpipe m/(15-11) GYD-CT-DMS Gyrodata cont.drillpipe m/s 9,586.60 10,753.85 15-11B IIFR(15-11B) MWD+IFR+MS MWD+IFR+Multi Station 10,763.00 11,284.83 MWD(15-11CPB1) MWD MWD-Standard 11,292.00 13,250.00 MWD(15-11C) MWD MWD-Standard 1/4/2011 10:17:02AM Page 2 COMPASS 2003.16 Build 73 BAKER HUGHES Survey Report- Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 15-11 -Slot 11 Project: Prudhoe Bay TVD Reference: 57.6 @ 57.60ft(57.6) Site: PB DS 15 MD Reference: 57.6 @ 57.60ft(57.6) Well: 15-11 North Reference: True Wellbore: 15-11C Survey Calculation Method: Minimum Curvature Design: 15-11C Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 11,284.83 91.44 19.14 8,805.90 -2,431.88 4,614.40 5,957,196.19 682,072.30 70°17'17.745 N 148°31'34.099 W TIP 11,292.00 91.39 20.24 8,805.72 -2,425.13 4,616.81 5,957,202.99 682,074.55 70°17'17.812 N 148°31'34.028 W KOP 11,306.31 92.94 17.16 8,805.18 -2,411.59 4,621.40 5,957,216.64 682,078.82 70°17'17.945 N 148°31'33.895 W 11,324.87 91.75 15.61 8,804.42 -2,393.80 4,626.63 5,957,234.55 682,083.63 70°17'18.120 N 148°31'33.742 W 11,354.65 90.71 11.66 8,803.78 -2,364.87 4,633.64 5,957,263.63 682,089.96 70°17'18.404 N 148°31'33.537 W 11,381.03 90.03 7.84 8,803.61 -2,338.88 4,638.11 5,957,289.72 682,093.81 70°17'18.660 N 148°31'33.406 W 11,404.78 89.94 4.99 8,803.62 -2,315.28 4,640.76 5,957,313.37 682,095.90 70°17'18.892 N 148°31'33.329 W 11,427.86 90.80 2.34 8,803.47 -2,292.25 4,642.24 5,957,336.43 682,096.84 70°17'19.118 N 148°31'33.285 W 11,450.52 91.26 0.35 8,803.06 -2,269.60 4,642.77 5,957,359.08 682,096.83 70°17'19.341 N 148°31'33.269 W 11,480.46 93.01 6.02 8,801.94 -2,239.74 4,644.43 5,957,388.97 682,097.79 70°17'19.635 N 148°31'33.220 W 11,510.31 92.18 9.09 8,800.59 -2,210.18 4,648.35 5,957,418.61 682,101.01 70°17'19.925 N 148°31'33.106 W 11,541.83 94.36 13.28 8,798.79 -2,179.32 4,654.45 5,957,449.61 682,106.38 70°17'20.229 N 148°31'32.927 W 11,570.77 96.76 16.64 8,795.99 -2,151.50 4,661.88 5,957,477.60 682,113.15 70°17'20.503 N 148°31'32.710 W 11,600.54 94.73 19.96 8,793.01 -2,123.38 4,671.18 5,957,505.92 682,121.79 70°17'20.779 N 148°31'32.439 W 11,630.70 92.49 24.39 8,791.11 -2,095.52 4,682.54 5,957,534.04 682,132.48 70°17'21.053 N 148°31'32.107 W 11,661.44 90.80 29.58 8,790.22 -2,068.15 4,696.48 5,957,561.74 682,145.77 70°17'21.322 N 148°31'31.701 W 11,695.28 90.15 33.37 8,789.94 -2,039.29 4,714.15 5,957,591.00 682,162.75 70°17'21.606 N 148°31'31.185 W 11,721.18 90.37 36.22 8,789.83 -2,018.02 4,728.92 5,957,612.61 682,177.02 70°17'21.815 N 148°31'30.754 W 11,752.48 90.77 40.40 8,789.51 -1,993.47 4,748.32 5,957,637.61 682,195.83 70°17'22.056 N 148°31'30.189 W 11,780.26 92.15 44.52 8,788.81 -1,972.99 4,767.06 5,957,658.53 682,214.08 70°17'22.258 N 148°31'29.642 W 11,809.02 92.88 48.62 8,787.54 -1,953.24 4,787.93 5,957,678.76 682,234.47 70°17'22.452 N 148°31'29.034 W 11,835.17 92.34 51.33 8,786.35 -1,936.44 4,807.93 5,957,696.03 682,254.07 70°17'22.617 N 148°31'28.451 W 11,860.43 92.33 48.54 8,785.32 -1,920.20 4,827.24 5,957,712.72 682,273.00 70°17'22.776 N 148°31'27.888 W 11,891.75 92.79 44.28 8,783.92 -1,898.63 4,849.90 5,957,734.82 682,295.14 70°17'22.988 N 148°31'27.227 W 11,919.63 90.77 41.15 8,783.06 -1,878.16 4,868.80 5,957,755.73 682,313.55 70°17'23.190 N 148°31'26.676 W 11,947.68 90.92 38.18 8,782.64 -1,856.57 4,886.70 5,957,777.73 682,330.93 70°17'23.402 N 148°31'26.154 W 11,976.92 89.69 35.58 8,782.49 -1,833.18 4,904.24 5,957,801.52 682,347.92 70°17'23.632 N 148°31'25.642 W 12,008.36 92.42 33.87 8,781.91 -1,807.35 4,922.15 5,957,827.77 682,365.21 70°17'23.886 N 148°31'25.120 W 12,039.17 95.10 32.03 8,779.89 -1,781.56 4,938.87 5,957,853.95 682,381.31 70°17'24.139 N 148°31'24.633 W 12,069.27 96.12 28.89 8,776.95 -1,755.74 4,954.05 5,957,880.11 682,395.88 70°17'24.393 N 148°31'24.190 W 12,099.87 95.81 25.40 8,773.77 -1,728.66 4,967.94 5,957,907.51 682,409.12 70°17'24.659 N 148°31'23.785 W 12,130.38 92.27 24.25 8,771.62 -1,701.04 4,980.71 5,957,935.42 682,421.24 70°17'24.931 N 148°31'23.412 W 12,160.85 90.09 20.81 8,770.99 -1,672.91 4,992.38 5,957,963.82 682,432.24 70°17'25.207 N 148°31'23.071 W 12,190.71 89.85 16.74 8,771.00 -1,644.65 5,001.99 5,957,992.30 682,441.18 70°17'25.485 N 148°31'22.791 W 12,221.05 91.17 13.33 8,770.73 -1,615.35 5,009.86 5,958,021.77 682,448.35 70°17'25.773 N 148°31'22.561 W 12,250.55 92.09 9.43 8,769.89 -1,586.45 5,015.68 5,958,050.80 682,453.49 70°17'26.058 N 148°31'22.391 W 12,279.92 91.32 6.61 8,769.02 -1,557.38 5,019.77 5,958,079.95 682,456.90 70°17'26.343 N 148°31'22.271 W 12,309.70 91.38 1.65 8,768.32 -1,527.70 5,021.91 5,958,109.68 682,458.34 70°17'26.635 N 148°31'22.208 W 12,339.42 90.06 358.46 8,767.94 -1,497.98 5,021.94 5,958,139.38 682,457.67 70°17'26.928 N 148°31'22.206 W 12,371.09 89.66 354.00 8,768.02 -1,466.39 5,019.86 5,958,170.92 682,454.84 70°17'27.238 N 148°31'22.266 W 12,400.71 89.79 350.00 8,768.16 -1,437.06 5,015.74 5,958,200.14 682,450.03 70°17'27.527 N 148°31'22.386 W 12,429.75 89.26 346.28 8,768.41 -1,408.65 5,009.77 5,958,228.40 682,443.39 70°17'27.806 N 148°31'22.559 W 12,459.22 90.61 342.63 8,768.44 -1,380.26 5,001.88 5,958,256.59 682,434.83 70°17'28.085 N 148°31'22.789 W 12,488.48 91.41 338.65 8,767.92 -1,352.67 4,992.18 5,958,283.95 682,424.48 70°17'28.357 N 148°31'23.071 W 12,520.16 91.69 341.01 8,767.07 -1,322.94 4,981.26 5,958,313.40 682,412.87 70°17'28.649 N 148°31'23.388 W 12,552.52 89.91 345.52 8,766.61 -1,291.97 4,971.95 5,958,344.15 682,402.82 70°17'28.954 N 148°31'23.659 W 12,580.44 89.26 349.32 8,766.82 -1,264.72 4,965.87 5,958,371.24 682,396.10 70°17'29.222 N 148°31'23.836 W 12,610.94 88.44 353.42 8,767.43 -1,234.58 4,961.29 5,958,401.26 682,390.82 70°17'29.518 N 148°31'23.969 W 12,641.35 88.56 357.63 8,768.22 -1,204.28 4,958.92 5,958,431.50 682,387.73 70°17'29.816 N 148°31'24.037 W 12,670.55 88.01 1.57 8,769.10 -1,175.10 4,958.72 5,958,460.66 682,386.84 70°17'30.103 N 148°31'24.043 W 12,700.05 89.14 5.39 8,769.83 -1,145.67 4,960.51 5,958,490.13 682,387.94 70°17'30.393 N 148°31'23.990 W 12,730.06 90.03 8.69 8,770.05 -1,115.89 4,964.19 5,958,519.98 682,390.91 70°17'30.686 N 148°31'23.882 W 12,760.58 86.69 11.63 8,770.92 -1,085.87 4,969.57 5,958,550.12 682,395.58 70°17'30.981 N 148°31'23.725 W 1/4/2011 10:17:02AM Page 3 COMPASS 2003.16 Build 73 Mill BAKER HUGHES Survey Report- Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 15-11 -Slot 11 Project: Prudhoe Bay TVD Reference: 57.6 @ 57.60ft(57.6) Site: PB DS 15 MD Reference: 57.6 @ 57.60ft(57.6) Well: 15-11 North Reference: True Wellbore: 15-11C Survey Calculation Method: Minimum Curvature Design: 15-11C Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (^) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,791.04 88.77 13.40 8,772.13 -1,056.16 4,976.16 5,958,579.97 682,401.47 70°17'31.273 N 148°31'23.532 W 12,820.88 91.01 15.23 8,772.19 -1,027.25 4,983.54 5,958,609.05 682,408.16 70°17 31.557 N 148°31'23.316 W 12,850.07 92.61 17.76 8,771.27 -999.28 4,991.82 5,958,637.21 682,415.78 70°17 31.832 N 148°31'23.075 W 12,880.40 91.63 20.14 8,770.14 -970.61 5,001.66 5,958,666.09 682,424.94 70°17'32.114 N 148°31'22.787 W 12,901.70 92.24 22.66 8,769.42 -950.80 5,009.43 5,958,686.09 682,432.24 70°17'32.309 N 148°31'22.560 W 12,932.03 95.07 21.37 8,767.49 -922.74 5,020.77 5,958,714.40 682,442.92 70°17'32.585 N 148°31'22.229 W 12,963.09 96.70 19.31 8,764.31 -893.77 5,031.51 5,958,743.61 682,452.97 70°17'32.870 N 148°31'21.916 W 12,995.17 92.82 19.11 8,761.64 -863.59 5,042.03 5,958,774.04 682,462.77 70°17'33.167 N 148°31'21.609 W 13,020.59 91.41 17.09 8,760.71 -839.44 5,049.92 5,958,798.36 682,470.09 70°17'33.404 N 148°31'21.378 W 13,050.48 91.29 13.53 8,760.00 -810.63 5,057.81 5,958,827.35 682,477.30 70°17'33.687 N 148°31'21.148 W' 13,080.78 91.53 10.60 8,759.26 -781.01 5,064.14 5,958,857.11 682,482.93 70°17'33.979 N 148°31'20.963 W 13,110.14 91.90 7.24 8,758.38 -752.02 5,068.69 5,958,886.19 682,486.79 70°17'34.264 N 148°31'20.830 W 13,141.63 91.66 5.09 8,757.40 -720.73 5,072.07 5,958,917.55 682,489.43 70°17'34.571 N 148°31'20.730 W 13,171.21 91.26 0.51 8,756.64 -691.20 5,073.51 5,958,947.10 682,490.18 70°17'34.862 N 148°31'20.688 W 13,196.13 91.47 359.38 8,756.05 -666.29 5,073.49 5,958,972.01 682,489.57 70°17'35.107 N 148°31'20.688 W 13,250.00 91.47 359.38 8,754.67 -612.44 5,072.91 5,959,025.82 682,487.71 70°17'35.636 N 148°31'20.704 W TD 10,350.55 8,210.60 7" 7.000 8.500 10,199.44 8,120.43 PRODUCTION LINER 1 0.000 0.000 Survey Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (ft) (ft) (ft) (ft) Comment 11,284.83 8,805.90 -2,431.88 4,614.40 TIP 11,292.00 8,805.72 -2,425.13 4,616.81 KOP 13,250.00 8,754.67 -612.44 5,072.91 TD Checked By: Approved By: Date: 1/4/2011 10.17:02AM Page 4 COMPASS 2003.16 Build 73 TREE= FMC W WELLHEAD FMC SAFE. OTES: WELL ANGLE>70"@ 11076'. KB.ELE OR= AXELSON60.0' 15-11C 5-1 1 C 15 11 B NOT SHOWN.TBG"" ORIG WELL,15-11A& BF ELEV= 28.5' ' ` ) KOP= 2800' 25' -15-1/2"X 4-1/2"XO,ID=3.958" Max Angle= 970 @ 11571' Datum MD= WA Datum TVD= 8800'SS ' ' - 2094' -14-1/2"HES X NIP,ID=3.813" I 13-3/8"CSG,72#,L-80,ID=12.347" I-1—2474' lik GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE IF 4 3326 3306 18 MMG-M DOME RK 16 01/27/11 3 5501 5000 45 MMG-M SO RK 20 01/27/11 2 7523 6372 44 MMG-M DMY RK 0 09/03/04 Minimum ID = 2.380" @ 10219' 1 9323 7591 54 1%/MG-M DMY RK 0 09/03/04 4-1/2" KB LTP 9445' 19-5/8"X 7"BKR LNR TOP PKR w/TIEBACK SLV,ID=7.040" 9463' H9-5/8"X 7"LNR HNGR, ID=7.020" 7"MILLOUT WINDOW(15-11B) 9620'-9636' PERFORATION SUMMARY 10135' -14-1/2"HES X NIP,ID=3.813" REF LOG: SLB MCNL ON 01/06/2011 ANGLE AT TOP PERF: 96°@ 11560' I 10155' -17"X 41/2"BKR S3 PKR,ID=3.875" I Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE Z 2" 6 11560-11940 O 01/07/11 10179' -{4112"HES X NP,ID=3.813" 2" 6 12050-12E70 0 01/07/11 2" 6 12860-12920 0 01/07/11I /11_,,, 1 10200' -4-1/2"HES XN NIP,ID=3.80" MILLED 12/23/10 / 10208' 17"X 4-1/2"BKR LTP&LNR HGR w/TIEBACK SLV,ID=4.30" 4-1/2"LNR,12.6#, 13CR-80 VAM TOP, --I 10213' - 10213' -14-1/2"WLEG,ID=3.958" I .0152 bpf,ID=3.958" 10219' -14-1/2"KB LTP,ID=2.38" I 10226' --13.70"BTT DEPLOYMENT SLV,ID=3.00" 5"X4-1/2"XO,ID=4.00" I - 10248' -3-1/2"OTIS X NIP,ID=2.812" 7"LNR,26#,L-80 BTC-M, -I 10385' 1--J , .0383 bpf,ID=6.276" 10435' -I3-1/2"X 3-3/16"XO,CI=2.80" 3-1/2"LNR,9.2#,L-80 STL, - 10435' '\ .0087 bpf,ID=2.992" 4-1/2"MILLOUT WINDOW(15-11C) 10763'-10773' P0.vka WHIPSTOCK(12/23/10) - 10763' 4-1/2"LNR, 12.6#,L-80 BTC-M, --I -10763' 10899' -13-3/16"X 2-7/8"XO,ID=2.38" .0152 bpf,ID=3.958" 15- If 1 b 3-3116"LNR,6.2#,L-80 TCII,.0076 bpf,ID=2.80" I- 10899' K : r /5-11c_. PBTD -I 12938' 2-7/8"LNR,6.16#,L-80 STL, .0058 bpf,ID=2.441" H 12977' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 10/18/81 ORIGINAL COMPLETION 01/31/11 /JMD DRLG DRA FT CORRECTIONS WELL: 15-11C 10/25/87 RWO 02/13/11 JCM/AGR GLV C/O(01/27/11) PERMIT No:It101630 02/11/99 CTD SIDETRACK(15-11A) 02/18/11 A K/JMD DRLG DRA FT CORRECTIONS API No: 50-029-20653-03 09/05/04 N2ES SIDETRACK(15-11B) SEC 22,T11 N,R14E,1997'FNL&1450'FWL 01/17/11 NORDIC2 CTD SIDETRACK(15-11C) 01/17/11 SV DRLG HO CORRECTIONS BP Exploration(Alaska) RE: Nordic 2 shut-in on gas Page 1 of 1 Maunder, Thomas E (DOA) From: Smart, John C [John.Smart@bp.com] Sent: Monday, December 27, 2010 10:30 AM To: McMullen, John C; AK, D&C Rig Nordic 2 Well Site Leader Cc: Sarber, Greg J; Regg, James B (DOA); Maunder, Thomas E (DOA); guy.schwartz@alask.gov; Miller, Kenneth C; Engel, Harry R; Goodrich, Gary T; Rossberg, R Steven Subject: RE: Nordic 2 shut-in on gas Thx John John John Smart Wells Team Leader RWO& CTD Operations BP Alaska Drilling& Wells Cell#1-832-693-6493 E-Mail:smartjcna bp.com From: McMullen,John C Sent: Monday,December 27,2010 10:28 AM To: AK,D&C Rig Nordic 2 Well Site Leader Cc: Smart,John C;Sarber,Greg J; Regg,James B(DOA);'Maunder,Thomas E(DOA)';guy.schwartz@alask.gov;Miller,Kenneth C; Engel,Harry R; Goodrich,Gary T Subject: Nordic 2 shut-in on gas Gary— Please follow-up with notification to the AOGCC on the details of Nordic 2 shutting in BOPE on well 15-11 B to circulate-out residual gas(12/23/10). I just visited with Tom Maunder about the incident. While he agreed that we were not operating under the PTD (#210-163) because we had not yet started window milling or drilling operations, he said that the expectation is to notify the AOGCC as defined in the Drilling section 20 AAC 25.035 (e) (11). Jim/Tom/Guy—please"reply all" on anything I've misstated here or to provide further clarification. Thanks, John 529-9129 2/18/2011 G n (0 N-Fri: R SEAN PARNELL, GOVERNOR U E-1 ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. PO Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Aurora Oil Pool, PBU 15-11C BP Exploration (Alaska), Inc. Permit No: 210-163 Surface Location: 1999' FNL, 3829' FEL, SEC. 22, T11N, R14E, UM Bottomhole Location: 2340' FNL, 4057' FEL, SEC. 23, T11N, R 14E, 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. Si -erel /ip f/ a Q om sioner DATED this // day of November, 2010. cc: Department of Fish 8s Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA REC r,,;:1 c ALAS 7IL AND GAS CONSERVATION COMM ON /A/42-JO PERMIT TO DRILL NOV 1 L 2010 20 AAC 25.005 {`j j -F Cans C�ii :A3giofl ,'����fi� �eJ la.Type of work: lb.Proposed Well Class: ®Development Oil ❑Service-Winj ❑Single Zone `-1c. Speci ii)�f�,,,,:,oposed for: o Drill IR Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalb k ii t i Gas Hydrates ❑ Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp 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 15-11C 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 13476' ND 8694'ss Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: ADL 028306&028307 1999'FNL,3829'FEL, SEC.22,T11N, R14E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 4759'FNL,402'FWL, SEC.23,T11N, R14E, UM December 7,2010 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 2340'FNL,4057'FEL, SEC.23,T11N, R14E, UM 2560 27000' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 57.64 feet 15.Distance to Nearest Well Open Surface: x- 677402 y-5959518 Zone- ASP4 GL Elevation above MSL: 29.14 feet to Same Pool: 900' 16.Deviated Wells: Kickoff Depth: 10790 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 93 degrees Downhole: 3265 Surface: 2385 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length_ MD TVD MD ND (including stage ta) 4-1/8"x3-3/4" 31/7'x13/18"x2-7/8" 9.*8.2#,6.18# L-80 STUTC-11 2966' 10510' 8320' 13476' 8694'ss 106 sx Class'G' 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth ND(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth ND(ft): Junk(measured): 12968' 883 ' 11150'/12349' 12880' 8841' None Casing Length Size Cement Volume MD ND Conductor/Structural 112' 20" 300 sx Permafrost 112' 112' Surface 2474' 13-3/8" 2400 sx Fondu.400 sx Permafrost'C' 2474' 2474' Intermediate 9620' 9-5/8" 250 sx Class'G'.300 sx Permafrost'C' 9620' 7769' Production Liner 940' 7" 211 sx Class'G' 9445'- 10385' 7663'-8232' Liner 2760' 4-1/2" 339 sx Class'G' 10208'- 12968' 8125'-8836' Perforation Depth MD(ft): 11112'- 11136' Perforation Depth ND(ft): 8815'-8826' 20.Attachments: 0 Property Plat ® BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis ®Diverter Sketch 0 Seabed Report ®Drilling Fluid Program ®20 MC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true -.d correct. Contact Cody Rymut,564-5452 Printed Name John. = /4 / Title Engineering Team Leader Prepared By Name/Number Signature ', Phone 564-4711 Date if /O /c) Elizabeth Barker,564-4628 Commission Use Only Permit To .,% API Number: Permit pp v D See cover letter for Number: �/Q/6f 50-029-20653-03-00 " 10 other requirements Conditions of Approval: If box is checked,wellemay not be used to explore for,test,or produce coalbed meet sane,gas hydrates,or gas contained shales: [v]' le Other: 350v/o5` BD{" /es p q' ❑Yes I�No Mud Log Req'd: ❑ es "No ,I rr Samples Re d: �� 1 -Z5� /,s`, j'`t.hriv-La.1r 2151- (1---•-> H2S Measures: 'Yes 0 < Di=ctionalSurvey Req'd: I 'Yes 0 No 0,/iir APPR o VED BY THE COMMISSION Date i/-+/9"!Q ,COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from the d • ap, , .005(g)) bmit In Duplicate i %/-//-/ct /0,-66 ORIGINAL DS 15-11C — Coiled Tubing urilling To: Alaska Oil & Gas Conservation Commission From: Cody Rymut bp CTD Engineer Date:November 8, 2010 Re: 15-11C Application for Permit to Drill Request CTD Drill and Complete 15-11C program: Spud December 7, 2010 Pre-Rig Work: (scheduled to begin November 20, 2010) 1. S Set dummy GLV's/drift with dummy whipstock 2. W AC-PPPOT-IC, 3. E Set whipstock at KOP (10770' MD) PK'S t-i‘ 4. C Freeze protect the well and thoroughly wash the tree 5. D Bleed wellhead pressures down to zero. 6. D Bleed production flow lines and GL lines down to zero and blind flange 7. V Set TWC 24hr prior to rig arrival 8. 0 Remove wellhouse, level pad Rig Work: (scheduled to begin December 7, 2010) 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. 2. Mill 4-1/2" HES XN NIP to 3_Rn" 3. Mill 3.8" window at 10770' and 10'of rathole in Zone 2. Swap the well to Geo-Vis. -- 4. Drill Lateral: 3.75" OH, 2300' (12 deg/100 planned) with resistivity. 5. Run 3-1/2" x 3-3/16" x 2-7/8" tapered L-80 liner leaving TOL at 10,510'.'- 6. 0,510'.'6. Pump primary cement leaving TOC at 10,510', 22 bbls of 15.8 ppg liner cmt planned. ' 1-0)7. Cleanout liner and MCNL/GR/CCL log. 8. Test liner lap to 2,400 psi. 9. Run and set KB liner top packer, if necessary. - 10. Perforate liner per asset instructions (-1300'). 11. Freeze protect well, set BPV, RDMO. Post-Rig Work: 1. Re-install wellhouse, flowline and pull BPV. 2. Generic GLV's. 3. ASRC flow back test. November 8,2010 DS 15-11C — Coiled Tubing veining Mud Program: • Well kill: 8.6 ppg seawater/ brine • Milling/drilling: 8.6 ppg Geo-vis or biozan for milling, new Geo-vis for drilling. Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. • All Class I wastes will go to Pad 3 for disposal. Hole size: Build Section: 4-1/8" Lateral Section: 3.75" Casing Program: • 3-1/2", 9.3#, L-80, STL10,510'MD— 10,680' MD • 3-3/16", 6.2#, L-80, TC-Il 10,680' MD— 11,296' MD • 2-7/8", 6.16#, L-80, STL 11,296' MD - 13,476' MD • A minimum of 22 bbls of 15.8 ppg cement will be used for liner cementing. (TOC 10,510'MD) Well Control: • BOP diagram is attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3,500 psi. • The annular preventer will be tested to 250 psi and 2,500 psi. Directional • See attached directional plan. Maximum planned hole angle is 90 deg. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property line—27,000' NorthWest • Distance to nearest well within pool — 900' (15-31B) Anticollision Summary • 15-11A center to center distance is 7ft. 15-11A current status is Plugged and Abandon. Logging • MWD directional, Gamma Ray, and Resistivity will be run over all of the open hole section. • A cased hole GR/CCUCNL log will be run. Hazards • The maximum recorded H2S level on DS 15 is 50 ppm on well 15-21A (02-24-2001). • Lost circulation risk is low. No fault crossings are expected and the occurrence of losses in nearby wells is moderate. Reservoir Pressure • Reservoir pressure is estimated to be 3,265 psi at 8,800'ss (7.14 ppg EMW). Maximum surface pressure with gas (0.10 psi/ft) to surface is 2,385 psi. Cody Rymut CTD Engineer November 8,2010 DS 15-11C - Coiled Tubing urilling TREE• 6'RAC SAFETY NOTES:ORIGINAL PARENT WELL NOT WE_LHEAD• RAC ACTUATOR• AAEL9ON 15-11 BSHOW. '''''"CHROMETeo'' WELL ANGLE>70' KB.ETA/. 60.0'BF.ElEV• 283 KAP. 280/ MAaxAnge• 94011721' 25 H5.112"x4.12'XQD:3.968' Datum MD. 11236' dsLm1VD= 880x55 ' ' I 2094' 1--14•i/2"HES xRP,D.3.813'1 GAS LIFT MANDRELS DRELS 113 3/8'CSG,721,1.83,D.12.34T H 2474' I--4( ik ST AD ND DEV TYPE V LV LATCH PORT GATE Q 4 3326 3306 18 1•61G•14 NAY RK 0 10105/10 3 5501 5000 45 1.61G1.1 111AY RK 0 1005/10 2 7529 8372 34 IANG•1.1 OW RK 0 0903/04 Minimum ID=3.725" rii 10200' 1 9923 7591 54 MMIG•MI 04.1Y RK 0 090904 4-1/2"HES XN NIPPLE I 9445 1 -9.56'X T BIC R L NR TCP RCR 111 wMEBACKSLV,D.7.040' 9463' --19.5/8'X T L NR tiNGEL D*7 020" 1 MILLOUr WINDOW(15-118) IWFP23u STCXX(080d)H 9820' 1 9820'•9696 10135' H.'r 112'+ES X MP,D•3.813' `• 10155 HTx4.112'BK4S3RCRID.3.875' 19.5/8'rESEZSV{0E822/04) 965$' -"WIPP' illik •Nrj 10174.1/2'HESXNP,D.3.813' I 1TBG STUB 06/22/04)1 19746 ELM -4/.. 9' H10200" --14.12'HES XN PIR D.3.725'J ITOPOF2.318'LNR4.7u1,D=1.941' 1-I 9881' 3+� . 111 .� 4 10208'8' 4-.�7•X4.1P?BKRLSRTOP R42 ITOPOF T LNR 1- 9924' 1- . 1� 1 w/TEBAQ<SLV,0.4.430' 1312TB ' G,9.31,L-80,D.2992'}-1 9978' I , 10213' 1--14.12'W1.EG,I)•1958' 1 19 5/8'CSG,478,L•80,0.8.681'1--1 102.40' I 10222 7'X 4.112'LNR MGR,D.4.30' Frac.OF MA(08/1 5104) 10500' reef 12.3/8'L NR 4.74 L.80. ID•1.941' 12264' 10228' 5'x 4.112'XO, iii D.4.00' PE RFOIRATDN SUMMARY 4.1.2'TBG,12.84.13C1180 10213' S FEF LOG:SWS LETIKARY C NUG RAXl ON 02106/8 YAM..0152 bpf.D=1958' i ANGLE AT TOP PEW: 61'011112' . Mao Rarer b Rodud'on DEI kr)imorical pot dila 7'114R 288,L-80 BTG MA, 10385 SIZE SPF INTERVAL Opn/Sgz DTE .0383!q!,D•6276' 2.7/8' 6 1112.11136 0 07/06 7 14.1/2'CEP{082&10)H 11150' S 2.718' 6 111558. ti 186 C 07436'07 2.7/8' 8 11226.11246 C 07/08/07 ✓r 2.7/3' 4 11300.11440 C 0901(04 13.86'HES C (05,'38,09)H 12349' 2.718' 4 11710.12110 C 0901/04 2.7/8' 6 11896.11216 C 07436/07 A 2.716' 4 12180.12480 C 0901)04 ® 12881' G1k'� , 2.718' 4 12530.12730 C 0901/04 'ytib► 2.718' 4 12820. 12870 C 0901/04 14.12'LNR 126*L.80 BTO IA,.0152 bpf,0.3958' H 12988' I 2.718' 6 12826.128% C 0710507 DATE REV BY COMMENTS DATE REV BY COMMENTS PRIDHOEBAY TNT 10/18/81 ORIGINAL COMPLETION 07/21.07 DAS/R1C PERFORATORS 070607) Wel: 15-118 1025187 18VO 08/03439 RRD'Tt H CEP SET(06/264(9) PERMIT No:X041460 02/11/99 CTD SDETRACK(15.11A) 06/29/10 K.B/R)C Com/PERPS(06126110) AR No:50-029.20653.02 06/0504 N2E 3I,ETRACK{15.11E9 1(823/10 )ASS'AGRGLV CIO(10.05/10) SEC 22,T11N,R14E,1997'RI.S.1450'FM& 33/1604 GJ8ITLH GLV CO 02/1906 RCCVRH DRLGGRAFTCORRECTIONS 8PEpIoration(Alaska) November 8,2010 DS 15-11C - Coiled Tubing urilling FMC AC11JA' D- o FMC 15-11C SAFETY NOTES:' ROME TELL PARENT WELL NGLE>770' ACTUATOR= Ax�SON 1...ELEV= 60.0' Prop OTD Sidetrack a'11186'. .ELEV= 28.5' ` • )P= 28o& l'.tx Amis= 940 1721' 25 _ 2'x 4-•,2'X0,0=3.958' turn NO= 11238 .Anil,ND= 8 k 5S I I 2094' 1-a-•.2•HES X NW',0=3.813' CAS LFT MANDRELS I :318'CSG,720,L-80,0=12.347' H 2474' _i_41 ST MD TVD DEV TYPE VLV LATCH PORT DATE NI 4 3326 3306 18 MMG-M DO& RK 16 09!18;04 3 5501 5000 45 MMG-M SO RK 20 09/18104 2 7523 6372 44 NIMG-M D6/Y RK 0 09/03;04 Minimum ID= 2.375"@ 10500' 1 9323 7591 54 MMG-M DMY RK 0 09.03;04 4-12" BKR KB LTP r I 9445' H9-5'8-X r BKR LNR TOP PKR . " I.v,TEBACKSLV, D=7.040' '- 9463' H9-5,8'X 7'LNR HNGR,ID=7.020• I MILL OUT WINDOW 15-1113) WilPSTOCK(08,2301) 9620' 9620'-9636' I 10135' H,-' -'rt5 x.,aI°. L., i g 10155' H . , - :2'BKR 63 PKR D=3.875' I 1 = 9-5/8*HES¢SV(OB/22r0o,�-I 9656' I , r I 10179' I .2 ISS x NP.ID 3.813• I 958'CSG,47v, L-80.ID=8.53•'1--I 10240' , , I 10200' H 4-'!2'HES XN ID=`.11L_J T03.8o I I 10208' H7'X4-1/2'BKR LNR TOPPKR w/TIBACK SLV,10=4.430' I ,-' z' 1 b(.:.'', -._ 10213' - - 1-. VAM..0,52on, _,_ = --- -- __L_ 10213' I--I4-1/2•WLEG,ID=3.958'I 110222' H r x 4-trz??•LNR HNGR ID=4.30• I r LNR,260,L-8)BTC-M. I-J 10385' I A Ilk 1 10228' Hs-x4-1/2•XO, 0=4.00' .0383 opf,ID=6.275' I H PERFORATION 51444 RY 350 , 10510' - I BCGL 10769' REF LOG:SW S MBNDRY 0141/GRCCL ON 02.06:99 f ni ANGLE AT TOP PER: 61'. 112 10770' I -a ws t Note:Refer b Rocucton138 for rtetoncat pert cat.5 SZE SPF INTERVAL OpnRSoz DA f E 240 ilk, 2-7/8' 6 11112-11136 0 06128/10 11301; 2-718' 6 11156-11186 C 07/06/07 2-7,41• 6 11226-11246 C 07/06/07 ' + IC 2-7.6' 411300-11440 C 09/01/04 2-7i8' 4 11710-12110 C 09/01/04 _- -_ __ '.;2•CIBP(0628/10)I-I 11150' 2-7,k' 6 11886-11216 C 07/06/07 2-7,8' 4 12180-12480 C 09/01/04 1.6-___ ',:d-'.--,S.It 2-7/8' 4 12530-12730 C 09101/04 2-7,k' 4 12820-12870 C 08/01/04 2-718' 6 12826-12856 C 07/06/07 0:02i B 4-1)2'LNR 12.64,L-80 BTC-M,.0152 oaf,ID=3.y58- H 12968' I DATE NL.. ' COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT' 10/18/81 ORIGINALCOMPLETION 07/21/07 DMS/PJC PERFORATIONS 07;06,07) WELL: 15-11C 10/25/87 RWO 061)3/09 RRLYTLH CBP SET(05/28/09) PERMIT No: 02/11/99 CTD SIDETRACK(15-11A) 06/29/10 KJB/PJC 'MP PERFS(06/28/10) API No: 50-029.20653.03 09/05/04 N2ES SIDETRACK(15.118) 10.07?'0 MSE PROPOSED CTD SIDETRACK SEC 22,T11 N,R14E 1997'FM.&1450'FW. 9.,•8104 GJ&TLH GLV 00 '.,22"9106 ROOT LH DRLG DRAFTCORRECT DNS BP bcploratlon(Alaska) I'4JV II!UM v, cviv I, N O h. O CO v c0 N- CO N. O O 0 h I W O CO C) CO 0) CO CO O U) O O O ra_ (O 66 (+i of V of U) ao 1 CCS 6 C) a I;IMO O U) co U) V N (O M O m Ivo 0, m= W I- c`7 H i— O Z N M ,_ CO 0 N (0 U) a0 co MCV N co co N. t— N N U) a 0) ) CO W O CO JoO r V O O O O r O r aO eL ❑ 0) O O O O (0 U7 N .1 CV Z I O N N F U m co a) > N E o) LO 7 C o a) min (n J 8 Z (o (o o O o O O O o 0 O o O 7 .- U) V O O O O O 0 O 0 0 0 O O c+i (o of U) 6 U) Iri Ui Ui U7 U) U) 7 a) U) O 0 co co co co co co co co co � C E N 0 m o O• ? 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B�S r �*mmg"s r w 4si44�«44«Q>4.1n-S ----� w w 2 -gin MM122 �s"ss 444 _ o c7mo Wn NNNNNNNNNNN r • m m 67'." o� a FR O � 8o8 ' NNO 88 m,:Fi m -r zN N NON 1OA8��888888ma�.+88 or c 88 NF' N2888e.go,o,.OBOo.� v _ __ O iii-6 X888'4m8�888888888888 b 6 6 6 6 b 8 6 8 b �oOoo888.- $'-NNNNN �S '° z '° $ o�'o °° '° '° '° h9EOAO1 eaS ueay1 -,,`'5 .-0“0,.......,0 X...—..,m,-......m (TM OL)yidOQ je0!POA Onil BPPASSPORT BAKER HUGHES Travelling Cylinder Report 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 15-11 -Slot 11 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB DS 15 MD Reference: 57.6 @ 57.60ft(57.6) Site Error: 0.00ft North Reference: True Reference Well: 15-11 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore 15-11C Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 3 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB DS 02 02-16-02-16B-02-16B 10,880.00 13,685.00 1,128.52 885.96 254.92 Pass-Major Risk PB DS 15 15-08- 15-08-15-08 Out of range 15-08- 15-08A-15-08A Out of range 15-08- 15-08APB1 -15-08APB1 Out of range 15-08- 15-08APB2-15-08APB2 Out of range 15-08- 15-08B-15-08B Out of range 15-08- 15-08BPB1 -15-08BPB1 Out of range 15-08- 15-08C-15-08C Out of range 15-08-15-08CL1 -15-08CL1 Out of range 15-09- 15-09-15-09 Out of range 15-09A-15-09A-15-09A Out of range 15-10- 15-10-15-10 Out of range 15-10A-15-10A-15-10A Out of range 15-11 - 15-11 -15-11 11,131.46 10,925.00 239.41 34.09 210.74 Pass-Major Risk 15-11 - 15-11A-15-11A 11,119.36 11,075.00 7.15 27.35 -13.07 FAIL-Major Risk 15-11 - 15-11B-15-11B 10,775.00 10,775.00 0.02 0.63 -0.57 FAIL-Major Risk 15-12- 15-12-15-12 Out of range 15-12- 15-12A-15-12A Out of range 15-12- 15-12A-Plan#3 Out of range 15-12- 15-12APB1 -15-12APB1 Out of range 15-12-15-12B-15-12B Out of range 15-12-15-12B-15-12B wp09 Out of range 15-12-15-12BPB1 -15-12B wp08 Out of range 15-12-15-12BPB1 -15-12BPB1 Out of range 15-13-15-13-15-13 Out of range 15-13-15-13A-15-13A Out of range 15-14-15-14-15-14 Out of range 15-14-15-14A-15-14A Out of range 15-14-15-14A-15-14A wp03 Out of range 15-15-15-15-15-15 Out of range 15-15-15-15A-15-15A Out of range 15-15-15-15B-15-15B Out of range 15-15-15-15B-Plan#4 Out of range 15-15-15-15C-15-15C Out of range 15-15-15-15CPB1 -15-15CPB1 Out of range 15-15-15-15CPB1 -Plan 11 Out of range 15-25-15-25-15-25 Out of range 15-25-15-25A-15-25A Out of range 15-25-15-25APB1 -15-25APB1 Out of range 15-25-15-25B-15-25B Out of range 15-31 -15-31 -15-31 13,263.54 11,762.07 518.50 220.77 304.57 Pass-Major Risk 15-31 -15-31A-15-31A 13,476.00 11,100.00 1,341.52 174.77 1,169.35 Pass-Major Risk 15-31 -15-31A-Plan#108 13,476.00 11,050.00 1,466.44 173.62 1,295.45 Pass-Major Risk 15-31 -15-31 B-15-31 B 11,893.90 12,210.00 364.33 156.50 218.18 Pass-Major Risk 15-42-15-42-15-42 10,910.00 10,875.00 619.20 334.84 305.17 Pass-Major Risk 15-42-15-42A-15-42A 10,910.00 10,875.00 619.20 334.92 305.09 Pass-Major Risk 15-42-15-42B-15-42B 10,910.00 10,875.00 619.20 335.29 304.59 Pass-Major Risk 15-42-15-42BPB1 -15-42BPB1 10,910.00 10,875.00 619.20 335.02 304.83 Pass-Major Risk 15-42-15-42PB1 -15-42PB1 10,904.27 10,000.00 1,188.29 305.82 951.44 Pass-Major Risk 15-42-15-42PB2-15-42PB2 10,865.93 9,851.00 1,154.46 312.17 925.29 Pass-Major Risk 15-42-15-42PB3-15-42PB3 10,874.18 9,884.00 1,161.52 310.43 932.29 Pass-Major Risk CC-Min centre to center distance or covergent point, SF-min separation factor, ES-min ellipse separation 10/18/2010 2:53:10PM Page 3 of 32 COMPASS 2003.16 Build 73 I - I s; 1 E• n ma• V 11 I S'•S;m =6_ iiiii; - ' . ' I:4 ill . . . ill A . .... , 1 MILI. Q CY a R - 7 >11 1, tgt m Z ' F_ m �� I. 911" a"III • Q • f 11.1 1 r try ZO — ICI !!J ■'I ' ,11I _ Q �1i 9f 6 . . g of ; 1i '�' f f f m �� le".� I f E- 6 U m f ' ,11 Ce f , E J j f _ s a .. = - =W £ s J¢ d f a s I r. 1 U 9 0 e ■• 2 N � f ! f ■ „ z I 2 U CV = Y. t� 11 I It H 4\ a ■ u �� I Pb s 0° 11 • .f •2• 0) m u o V �-I i ,_ T. ir-icarm-N 14;pill 4 Q- o 0 ' r x 's� * Ila V. a_ i3 Ie o 5 g . CC 2 I1191 U BBB ABB Alaska Department of Natural Resources Land Administration System Page 1 of/ DkAlaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28306 di Printable Case File Summary See Township,Range, Section and Acreage? OO Yes Q No L New Search J LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28306 '''1.4 Search for Status Plat Updates As of 11/12/2010 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 09/14/1965 Total Acres: 2560.000 Date Initiated: 05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction: AA-NRB ASSIGNMENT APPROVED Meridian: U Township: 011N Range: 014E Section: 15 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 014E Section: 16 Section Acres: 640 Meridian: U Township: 011N Range: 014E Section: 21 Section Acres: 640 Meridian: U Township: 011N Range: 014E Section: 22 Section Acres: 640 Legal Description 05-28-1965 ***SALE NOTICE LEGAL DESCRIPTION*** C14-127 11N 14E UM 15,16,21,22 2560.00 U-3- 7 End of Case Summary Last updated on 11/12/2010. http://dnr.alaska.gov/projects/las/Case Summary.cfm?FileType=ADL&FileNumber=283... 11/12/2010 Alaska Department of Natural Resources Land Administration System Page 1 of Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28307 a Printable Case File Summary See Township,Range, Section and Acreage? (O Yes 0 No New Search LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28307 Search for Status Plat Updates As of 11/12/2010 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 09/14/1965 Total Acres: 2560.000 Date Initiated: 05/28/1965 Office of Primary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction:AA-NRB ASSIGNMENT APPROVED Meridian: U Township: 011N Range: 014E Section: 13 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 014E Section: 14 Section Acres: 640 Meridian: U Township: O11N Range: 014E Section: 23 Section Acres: 640 Meridian: U Township: O11N Range: 014E Section: 24 Section Acres: 640 Legal Description 05-28-1965 *SALE NOTICE LEGAL DESCRIPTION* C14-12811N 14E UM 13,14,23,24 2560.00 U-3- 7 End of Case Summary Last updated on 11/12/2010. http://dnr.alaska.gov/projects/las/Case_Summary.cfin?FileType=ADL&FileNumber=283... 11/12/2010 TRANSMITTAL LETTER CHECKLIST WELL NAME 4e1=`/ PTD# ✓ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: �.G7//,O.'iOE _ �f/a/ POOL: ./,em4,47/ Z.9 j/ Circle Appropriate Letter I Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1/11/2008 � ❑ To U) 0) 0 a) o- u) (/) N p O N 1) - 7 75 C Q C O a) O > L w . p0 O E C E p o) a 0) O , u) c0 tO 3 L .3 0 m v N I CO 0 N 23 I U) r.. '5 > C Q @ O N ami 3 _ = 0 U a o o W (0 a) @ o) a Q E 3 COUS .O N o a O @ �O TS a N Q -o v `o a E D m c 3 Y `M O N .2 (CO a @ - U E. -- i O Q m (0 (0 Q Q O a O Lo CO s p u) (0 0 a 0 O u) CO N CD O m w `a a 0 a) a C E ° Cl) (0 )n I 0) in 0 c c 3 o a N u) CO m v u) n v o m co rn 0 CL O 0 a) U c) a) L @ N U 2 > ii C a a 0 O c 0) 0) (0 -0 3 0) >. _@ c n cn Q 0 a) C C c@i c o @ a 0 Lo N ai o c N N 'n @ o N c c co 2 O 0 CO CO C -0 n ) @ ' N C') cc) @ U CO O U U O @ n w 0 E N 0 > Z N. 7 U V U C Q N- N 0 II C _Ne -O CO CO 7@ a). M .E L a O J m p' a) c t t o E m o o, a) 0 Q N m w' m O cn cn a U c) a 2 2 I 2 a > ` p I < U) U) U) a) a a U) U) U) a a) a < < < < < < < Q a) U) a) a) a < a U) U) U) a) a) < o < < < < CD_ z >- } r >- r r } r r r >- >- z z z z z z z z r >- r >- r z >- r >- >- >- } z z z z z z � a) No in LL U) CO > o N.p ` U C @ a) m F-' E 3 - E a) O U U c a) Zr.) tt ettk 7N C �- c _c o on 4t 0 E' m c U 3 E 3 0 co V) U O U c c 'Z O J o � Y o E E a) m U) OW co i C N N N n @ O. O u) n LL J n 7 U N CD 2 7 O. — _ N c T C. 7 O) N. @ Q. c. -O 7 V) @ D _oa) a 1] "O Q N N O` a "@O o) W a) N. N O p � CC c co @ 0 0 J or$ ,t c E1'6 v, @ n >. .O E o a�°i T 3 .c o >- 3 0 00 0 co > o u) N a o O N n o a a 2 0 N _ O 7. O - O .� co m U 13 c r o) v Z in m M 3 m o � C 0) .0 cal C a 5 Q o )n 0 < o N a LU — •O O C -p.. O a) 'C "O @ a).. n D O C a) m 0 O 0) a) L a) C @ u) co co U > 'O n N (n a N C C O O a) O ....r"-' E E = o c c E @ m o ch c c n '� c o ors c N a c 0 0) a N N n c) c a) 0 y o 0 0 0 -0 0 m N o 0 Q o a 7 U 'n 0 0 d g - 3 0 > a Y a) �. Q0 a) a) E >, o = ° -o @ • o o a) @ 0 0@ .� m Q m u a o o a c CC Q :: 3 n c c m L L c N — c n o 'm 7 .a 3 a o m t m 3 3 0) CO 0 w co @ @ "O E a) @ C N N M co L a) Oi u) o n 3 O c O C o z c m y a n m 3 3 CD a@i a) .. O - �' '3 -' 3 @ a) O D. O VU) n a) @ 0 3 ° r a) o w c::: - ‘-- 0 o O o c a 0 > o`o aoi .a 0 a 'o @ 'E o c 'o` aU) 0 0 cc Q o a 0° a) @ E O rn a u, a) V a -0 @ a) CO 0 0 m , a) o E cu E r o a) c .6 Q L a a) a a N = c a co co a z ? aa)) OU n d — 0 @ L (` E m O .3 N 15 N c N O o v@ E@ o o ) a- 0 u� @ 'c N c > > @ @ _�° o n 2 c �' - U) g n n a a) @ 0 CO N a) f6 it O () n C a o -O 0 N C 0 -0 Q .D L N O) o .n a) a) > D) C L N Cr n N cU) O 0 c m -c E a a @ o .0 c c 0 c @ o 0 0 'n = 3 0 m c o o m c a) c X aw@) @ @ @ @ a) @ @ @ 3 7 a) p O @ @ U a) _ 0 2 U N 0 _ C U @0 u) @ 00 c W C N 0 0 0 a) @ 0 .U. .U-. a) U N o C U a) O O — @ 'p @ ul 0. E 3 Cl) U -O U ili J m .E a o- o 0 0 'a) 0 0 E E c 3 O- .t I- I- I- ag) m a0i m a a o '45 E m N c m coT a) al a) a) a) 7 -0 n n a) a) @ a) - 0 0 7 2 2 2 @ -o @ -o 1 = O O t o N- a) a) co 'a) a) o p V@ a .__In u) o o a a U Q a z U cn U U U U< < t, o m w U 2 a o w w O W n O N M V (0 r a0 O O N 'CV' V (O c0 r N m O N M V (O O N a0 O V0 )- N co V (C) (0 N. 00 0) Cn N N N N N N N N N N C`") C) (+) ('2) c') C') c`') C') c`•) M o O O O ~C O O O C G O C O N d N N N U O Ct co CO O .. CI N 0) CI co N Cl OS N O N W . _ ,— O ,— O. J ON N a) > CD E c C O H -0 a a w` a < a 0 Well History File APPENIIIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. tapescan.txt **** REEL HEADER **** MWD 11/03/23 BHI 01 LIS Customer Format Tape **** TAPE HEADER **** MWD 11/01/03 3556330 01 3" CTK *** LIS COMMENT RECORD *** IIIIIIIIII1 111 1111 Remark File Version 1.000 Extract File: ldwg.las version Information VERS. 1.20: CWLS log ASCII Standard -VERSION 1.20 WRAP. NO: One line per frame well Information Block #MNEM.UNIT Data Type Information STRT.FT 10350.0000: Starting Depth STOP.FT 13250.0000: Ending Depth STEP.FT 0.5000: Level Spacing NULL. -999.2500: Absent value COMP. COMPANY: BP Exploration (Alaska) , Inc. WELL. WELL: 15-11C FLD . FIELD: Prudhoe Bay Unit LOC . LOCATION: 70 deg 17' 41.677"N 148 deg 33' 48. 545"W CNTY. COUNTY: North Slope Borough STAT. STATE: Alaska SRVC. SERVICE COMPANY: Baker Hughes INTEQ TOOL. TOOL NAME & TYPE: 3" CTK DATE. LOG DATE: 03 Jan 2011 API . API NUMBER: 500292065303 -Parameter Information Block #MNEM.UNIT value Description SECT. 22 Section TOWN.N T11N Township RANG. R14E Range PDAT. MSL Permanent Datum EPD .F 0 Elevation of Perm. Datum LMF . DF Log Measured from FAPD.F 57.64 Feet Above Perm. Datum DMF . DF Drilling Measured From EKB .F 57.64 Elevation of Kelly Bushing EDF .F 0 Elevation of Derrick Floor EGL .F 0 Elevation of Ground Level Page 1 010-403 2oS9 6 tapescan.txt CASE.F N/A Casing Depth OS1 . DIRECTIONAL Other Services Line 1 Remarks (1) All depths are Measured Depths (MD) unless otherwise noted. (2) All depths are Bit Depths unless otherwise noted. (3) All True vertical Depths (TVDSS) are subsea corrected. (4) All Formation Evaluation data is realtime data. (5) Baker Hughes INTEQ utilized CoilTrak downhole tools and the Advantage surface system to 109 this well . (6) Tools ran in the string included Casing Collar Locator, an Electrical Disconnect and Circulating Sub, a Drilling Performance Sub (Inner and Outer Downhole Pressure, Vibration and Downhole weight on Bit) , a Directional and Gamma Sub, and a Hydraulic Orienting Sub with a Near Bit Inclination Sensor. (7) Data presented here is final and has been depth shifted to a Primary Depth Control (PDC) log provided by well Schlumberger GR CNL dated 06 Jan 2011 per Walter Tifental with BP Exploration (Alaska) , Inc. (8) The sidetrack was drilled from 15-11B through a milled window in a 4 1/2 inch liner. Top of window 10763 ft.MD (8487.9 ft.TVDSS) Bottom of window 10773 ft.MD (8497.1 ft.TVDSS) (9) Tied to 15-11 at 10754 feet MD (8479. 5 feet TVDSS) . (10) The resistivity interval from 10070 ft. to 11128 ft. MD (8494.4 ft. to 8748.3 ft. TVDSS) was logged 24 hours after drilling run 5. (11) Baker Hughes INTEQ run 6 was used to set an aluminum billet at 11292 ft MD (8748.1 ft TVDSS) in well 15-11CPB1. (12) Well 15-11C was sidetracked off of an aluminum billet set in well 15-11CPB1. (13) Tied into 15-11CPB1 at 11285 ft. MD (8748.3 ft. TVDSS) (14) The gamma ray interval from 11070 ft. to 11140 ft. MD (8734.5 ft to 8745.0 ft TVDSS) was relogged on run 5 due to false gamma values towards the end of run 4. (15) The interval from 13199 ft to 13199 ft MD (8698.40 ft. to 8697.1 ft. TVDSS) was not logged due to sensor to bit offset at well TD. MNEMONICS: GRAX -> Gamma Ray [MWD] (MWD-API units) ROP AVG -> Rate of Penetration, feet/hour RACLX -> Resistivity (AT)(LS)400kHz-Compensated Borehole Corrected (OHMM) RACHX -> Resistivity (AT)(LS)2MHz-Compensated Borehole Corrected (OHMM) RPCLX -> Resistivity (PD)(LS)400kHz-Compensated Borehole Corrected (OHMM) RPCHX -> Resistivity (PD)(LS)2MHz-Compensated Borehole Corrected (OHMM) TVDSS -> True vertical Depth (Subsea) CURVE SHIFT DATA BASELINE, MEASURED, DISPLACEMENT 10353.6, 10353.6, ! 0 10356.5, 10356.3, ! -0.206055 10364.1, 10364.9, ! 0.821289 10367, 10367.4, ! 0.410156 10369, 10369, ! 0 10370.5, 10370.3, ! -0.205078 10373.3, 10373.1, ! -0.205078 10376.4, 10375.8, ! -0.615234 10391.4, 10389.8, ! -1.6416 10395.9, 10395.5, ! -0.410156 10408.8, 10409.3, ! 0.410156 10415.2, 10414.4, ! -0.821289 Page 2 tapescan.txt 10421.6, 10421, ! -0.616211 10426.9, 10425.7, ! -1.23145 10432.4, 10430.6, ! -1.84668 10434.7, 10433.3, ! -1.43652 10437.8, 10436.6, ! -1.23145 10448.7, 10446.4, ! -2.25781 10453.2, 10451.6, ! -1.6416 10455.9, 10454.6, ! -1.23145 10458.3, 10457.3, ! -1.02637 10466.2, 10464.8, ! -1.43652 10468.1, 10466.6, ! -1.4375 10470.1, 10468.5, ! -1.6416 10471.1, 10469.7, ! -1.43652 10473.2, 10471.3, ! -1.84766 10478.1, 10476.1, ! -2.05176 10482.4, 10481.2, ! -1.23145 10483.9, 10483.2, ! -0.615234 10485.3, 10485.1, ! -0.206055 10491.5, 10490.6, ! -0.821289 10494.3, 10492.5, ! -1.84766 10496.6, 10495.6, ! -1.02637 10499, 10497.6, ! -1.4375 10501.9, 10500.9, ! -1.02637 10505, 10504.2, ! -0.821289 10507.7, 10506.4, ! -1.23145 10509.7, 10508.3, ! -1.43652 10512.8, 10512, ! -0.821289 10516.1, 10514.6, ! -1.4375 10519, 10517.9, ! -1.02637 10521.6, 10519.8, ! -1.84668 10524.7, 10522.9, ! -1.84668 10530, 10528.3, ! -1.6416 10532.6, 10530.6, ! -2.05176 10540, 10538.6, ! -1.43652 10544.1, 10544.1, ! 0 10551.7, 10551.9, ! 0.205078 10555.2, 10553.8, ! -1.43652 10561.4, 10559.9, ! -1.43652 10568.3, 10566, ! -2.25781 10577.7, 10576.7, ! -1.02637 10580, 10579.3, ! -0.616211 10590.6, 10590.6, ! 0 10603.8, 10602.5, ! -1.23145 10607.1, 10606.2, ! -0.821289 10608.9, 10607.7, ! -1.23145 10616.7, 10615.3, ! -1.43652 10620.2, 10618.3, ! -1.84668 10626.2, 10625.3, ! -0.821289 10634, 10631.9, ! -2.05273 10646.1, 10644.2, ! -1.84766 10655.5, 10654.1, ! -1.43652 10679.1, 10679.8, ! 0.616211 10684.5, 10684.9, ! 0.410156 10769.7, 10770.5, ! 0.821289 10771.4, 10772.2, ! 0.821289 10773.4, 10773.8, ! 0.411133 10833.8, 10835.3, ! 1.4375 10839.6, 10841.2, ! 1.64258 10843.1, 10844.5, ! 1.4375 10844.9, 10847.2, ! 2.25781 10847.4, 10849, ! 1.64258 10849, 10851.3, ! 2.25781 10850.5, 10852.3, ! 1.84766 Page 3 tapescan.txt 10878.2, 10878.2, ! 0 10879.6, 10880, ! 0.411133 10883.1, 10883.1, ! 0 10885.1, 10885.6, ! 0.411133 10888.8, 10889, ! 0.205078 10891.9, 10892.1, ! 0.205078 10899.1, 10895.2, ! -3.89941 10899.8, 10897.3, ! -2.46289 10916.2, 10915.4, ! -0.821289 10924.8, 10925.4, ! 0.615234 10931.4, 10931, ! -0.410156 10940.8, 10941, ! 0.205078 10945.9, 10946.9, ! 1.02637 10950.6, 10951.5, ! 0.821289 10952.9, 10954.1, ! 1.23145 10956.2, 10956.8, ! 0.616211 10958, 10958.6, ! 0.615234 10959.9, 10961.1, ! 1.23242 10968.1, 10968.5, ! 0.410156 10971.2, 10971.4, ! 0.205078 10979.4, 10980.4, ! 1.02637 10984.7, 10984.3, ! -0.410156 10991.3, 10990.9, ! -0.411133 10993.4, 10993.8, ! 0.411133 10999.1, 10998.7, ! -0.411133 11010.4, 11010, ! -0.410156 11013.2, 11012.2, ! -1.02637 11021.7, 11020.4, ! -1.23145 11024.1, 11023.7, ! -0.410156 11026.8, 11027, ! 0.205078 11037.1, 11035, ! -2.05273 11044, 11042.6, ! -1.43652 11052.5, 11053.7, ! 1.23145 11057.2, 11057.2, ! 0 11059.6, 11061.3, ! 1.64258 11064.6, 11064, ! -0.615234 11067.9, 11065.4, ! -2.46289 11071.8, 11071.4, ! -0.411133 11080.6, 11076.9, ! -3.69434 11090.1, 11087, ! -3.0791 11096.8, 11094.4, ! -2.46387 11098.5, 11098.7, ! 0.205078 11103.2, 11103, ! -0.205078 11108.2, 11108.6, ! 0.411133 11114.6, 11113, ! -1.6416 11121.6, 11123.3, ! 1.64258 11125.1, 11126.1, ! 1.02637 11133, 11137.1, . 4.10449 11147.7, 11157.2, ! 9.44141 11177.7, 11186.9, ! 9.23633 11249.8, 11250.4, ! 0.615234 11254.1, 11255.4, ! 1.23145 11264.6, 11264.4, ! -0.206055 11290.6, 11291.6, ! 1.02637 11294.3, 11294.9, ! 0.615234 11304.7, 11305.1, ! 0.410156 11319.4, 11319, ! -0.410156 11326, 11325.2, ! -0.821289 11331.8, 11332.2, ! 0.410156 11345.1, 11344.7, ! -0.411133 11354.8, 11354.4, ! -0.411133 11360.5, 11359.1, ! -1.4375 11366.9, 11367.3, . 0.410156 Page 4 tapescan.txt 11378.8, 11378, ! -0.820312 11385.8, 11386.4, ! 0.615234 11448.3, 11448.3, ! 0 11451.6, 11452.2, ! 0.616211 11457.6, 11458.4, ! 0.820312 11459, 11460.2, ! 1.23145 11463.7, 11463.7, ! 0 11468.9, 11468.3, ! -0.615234 11477.4, 11477.2, ! -0.205078 11482.4, 11481.7, ! -0.615234 11485.8, 11484.4, ! -1.4375 11492, 11491.2, ! -0.821289 11501.6, 11500.1, ! -1.4375 11505, 11502.6, ! -2.46289 11506.9, 11505.4, ! -1.43652 11510.8, 11508.9, ! -1.84766 11514.7, 11513.8, ! -0.821289 11520.4, 11519.6, ! -0.821289 11526.6, 11524.9, ! -1.64258 11534.2, 11532.3, ! -1.84668 11537.2, 11535, ! -2.25781 11538.3, 11537.4, ! -0.821289 11541.1, 11540.7, ! -0.410156 11547.1, 11546.5, ! -0.615234 11553.9, 11552, ! -1.84668 11560.9, 11560.9, ! 0 11569.1, 11570.5, ! 1.4375 11781.5, 11780.9, ! -0.616211 11785.6, 11784.4, ! -1.23145 11792.8, 11792.4, ! -0.411133 11874.3, 11874.3, ! 0 11887.4, 11883.7, ! -3.69434 11899.1, 11898.1, ! -1.02539 11907.7, 11906.3, ! -1.43652 11910.8, 11909.1, ! -1.64258 11921.1, 11919.2, ! -1.84766 11934.2, 11934.2, ! 0 11938.2, 11936.3, ! -1.84668 11941.2, 11940.8, ! -0.411133 11944.3, 11944.3, ! 0 11952.5, 11950.8, ! -1.6416 11960.7, 11958.6, ! -2.05273 11962.1, 11960.1, ! -2.05176 11991.8, 11989.8, ! -2.05273 12014.2, 12013.3, ! -0.821289 12026.7, 12026.5, ! -0.205078 12030.6, 12028.7, ! -1.84668 12033, 12031.2, ! -1.84766 12036.9, 12037.9, ! 1.02637 12039.4, 12040.4, ! 1.02637 12044.5, 12044.7, ! 0.205078 12045.9, 12045.9, ! 0 12050.5, 12053.1, ! 2.66797 12053.3, 12055.4, ! 2.05273 12056.6, 12057, ! 0.411133 12120.6, 12117.5, ! -3.07812 12125. 5, 12123.5, ! -2.05273 12221.5, 12220.3, ! -1.23242 12325.3, 12324.1, ! -1.23145 12673.9, 12666.9, ! -6.97852 12682.3, 12676.8, ! -5.54199 12687.9, 12684, ! -3.89941 12697.3, 12693, ! -4.31055 Page 5 tapescan.txt 12701.6, 12697.7, ! -3.89941 12733.9, 12732.9, ! -1.02637 12741.9, 12740.7, ! -1.23145 12759.2, 12754.9, ! -4.31055 12762.3, 12758.6, ! -3.69531 12767.2, 12763.8, ! -3.48926 12773.8, 12772, ! -1.84766 12779.6, 12776.3, ! -3.28418 12783.5, 12781.6, ! -1.84766 12793.5, 12790.2, ! -3.28418 12795.6, 12794.1, ! -1.4375 12802.1, 12800.3, ! -1.84668 12819.1, 12814.6, . -4.51465 12832, 12828.7, ! -3.28418 EOZ END ! BASE CURVE: GROH, OFFSET CURVE: GRAX Tape Subfile: 1 297 records. . . Minimum record length: 10 bytes Maximum record length: 132 bytes **** FILE HEADER **** MWD .001 1024 *** LIS COMMENT RECORD *** II111111 III IIIII , Remark File Version 1.000 The data presented here is final and has been depth adjusted to a Primary Depth Control (PDC) log provided by Schlumberger GR CNL dated 06 Jan 2011 per Walter Tifental with BP Exploration (Alaska) , Inc. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale Units: Feet Frame spacing: 0. 500000 Frame spacing units: [F ] Number of frames per record is: 36 One depth per frame (value= 0) Datum Specification Block sub-type is: 1 FRAME SPACE = 0. 500 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Page 6 tapescan.txt Name Tool Code Samples Units Size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F/HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 161 Tape File Start Depth = 10350.000000 Tape File End Depth = 13246.500000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet **** FILE TRAILER **** Tape Subfile: 2 174 records. . . Minimum record length: 54 bytes Maximum record length: 4124 bytes **** FILE HEADER **** MWD .002 1024 *** LIS COMMENT RECORD *** 1111111111111111111 Remark File Version 1.000 This file contains the raw-unedited field MWD data. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale Units: Feet Frame spacing: 0.250000 Frame spacing units: [F ] Number of frames per record is: 36 One depth per frame (value= 0) Datum Specification Block Sub-type is: 1 FRAME SPACE = 0.250 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Page 7 tapescan.txt Name Tool Code Samples units size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F/HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 323 Tape File Start Depth = 10350.000000 Tape File End Depth = 13250.000000 Tape File Level Spacing = 0.250000 Tape File Depth units = feet **** FILE TRAILER **** Tape Subfile: 3 336 records. . . Minimum record length: 54 bytes Maximum record length: 4124 bytes **** TAPE TRAILER **** MWD 11/01/03 3556330 01 **** REEL TRAILER **** MWD 11/03/23 BHI 01 Tape Subfile: 4 2 records. . . Minimum record length: 132 bytes Maximum record length: 132 bytes 0 Tape Subfile 1 is type: LIS 0 Tape Subfile 2 is type: LIS Page 8 , tapescan.txt DEPTH GR ROP RAD RAS RPD RPS 10350.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 10350.5000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 13246.5000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 Tape File Start Depth = 10350.000000 Tape File End Depth = 13246.500000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet 0 Tape Subfile 3 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 10350.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 10350.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 13250.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 Tape File Start Depth = 10350.000000 Tape File End Depth = 13250.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = feet 0 Tape Subfile 4 is type: LIS Page 9 tapescan.txt **** REEL HEADER **** MWD 11/04/20 BHI 01 LIS Customer Format Tape **** TAPE HEADER **** MWD 11/01/01 3556330 01 3" CTK *** LIS COMMENT RECORD *** 11 , 11111 , 1111111111 Remark File Version 1.000 Extract File: ldwg.las Version Information VERS. 1.20: CWLS log ASCII Standard -VERSION 1.20 WRAP. NO: One line per frame well Information Block #MNEM.UNIT Data Type Information STRT.FT 10350.0000: Starting Depth STOP.FT 12251.0000: Ending Depth STEP.FT 0.5000: Level Spacing NULL. -999.2500: Absent Value COMP. COMPANY: BP Exploration (Alaska) , Inc. WELL. WELL: 15-11CPB1 FLD . FIELD: Prudhoe Bay Unit LOC . LOCATION: 70 deg 17' 41.677"N 148 deg 33' 48.545"W CNTY. COUNTY: North Slope Borough STAT. STATE: Alaska SRVC. SERVICE COMPANY: Baker Hughes INTEQ TOOL. TOOL NAME & TYPE: 3" CTK DATE. LOG DATE: 03 Jan 2011 API . API NUMBER: 500292065370 Parameter Information Block #MNEM.UNIT Value Description SECT. 22 Section TOWN.N T11N Township RANG. R14E Range PDAT. MSL Permanent Datum EPD .F 0 Elevation Of Perm. Datum LMF . DF Log Measured from FAPD.F 57.64 Feet Above Perm. Datum DMF . DF Drilling Measured From EKB .F 57.64 Elevation of Kelly Bushing EDF .F 0 Elevation of Derrick Floor EGL .F 0 Elevation of Ground Level Page 1 OW-4693 /4/(033 tapescan.txt CASE.F N/A Casing Depth OS1 . DIRECTIONAL Other Services Line 1 Remarks (1) All depths are Measured Depths (MD) unless otherwise noted. (2) All depths are Bit Depths unless otherwise noted. (3) All True vertical Depths (TVDSS) are SubSea corrected. (4) All Formation Evaluation data is realtime data. (5) Baker Hughes INTEQ utilized CoilTrak downhole tools and the Advantage surface system to 109 this well . (6) Tools ran in the string included Casing Collar Locator, an Electrical Disconnect and Circulating Sub, a Drilling Performance Sub (Inner and Outer Downhole Pressure, vibration and Downhole weight on Bit) , a Directional and Gamma Sub, and a Hydraulic Orienting Sub with a Near Bit Inclination Sensor. (7) Data presented here is final and has been depth shifted to a Primary Depth Control (PDC) log provided by well 15-11C above the Kick off Point 11292 feet MD dated 01 Jan 2011 per walter Tifental with BP Exploration (Alaska) , Inc. (8) The sidetrack was drilled from 15-11B through a milled window in a 4 1/2 inch liner. Top of window 10763 ft.MD (8487.9 ft.TVDSS) Bottom of window 10773 ft.MD (8497.1 ft.TVDSS) (9) Tied to 15-11B at 10754 feet MD (8479. 5 feet TVDSS) . (10) The resistivity interval from 10070 ft. to 11128 ft. MD (8494.4 ft. to 8748.3 ft. TVDSS) was logged 24 hours after drilling run 5. (11) The gamma ray interval from 11070 ft. to 11140 ft. MD (8734. 5 ft to 8745.0 ft TVDSS) was relogged on run 5 due to bad gamma values towards the end of run 4. (12) The interval from 12509 ft to 12550 ft MD (8710.9 ft. to 8709.3 ft. TVDSS) was not logged due to sensor to bit offset at well TD. MNEMONICS: GRAX -> Gamma Ray [MWD] (MWD-API units) ROP AVG -> Rate of Penetration, feet/hour RACLx -> Resistivity (AT)(LS)400kHz-Compensated Borehole Corrected (OHMM) RACHX -> Resistivity (AT)(LS)2MHz-Compensated Borehole Corrected (OHMM) RPCLX -> Resistivity (PD)(LS)400kHz-Compensated Borehole Corrected (OHMM) RPCHX -> Resistivity (PD)(LS)2MHz-Compensated Borehole Corrected (OHMM) TVDSS -> True Vertical Depth (Subsea) CURVE SHIFT DATA BASELINE, MEASURED, DISPLACEMENT 10353.6, 10353.6, ! 0 10356.5, 10356.3, ! -0.206055 10364.1, 10364.9, ! 0.821289 10367, 10367.4, ! 0.410156 10369, 10369, ! 0 10370.5, 10370.3, ! -0.205078 10373.3, 10373.1, ! -0.205078 10376.4, 10375.8, ! -0.615234 10391.4, 10389.8, ! -1.6416 10395.9, 10395.5, ! -0.410156 10408.8, 10409.3, ! 0.410156 10415.2, 10414.4, ! -0.821289 10421.6, 10421, ! -0.616211 10426.9, 10425.7, ! -1.23145 10432.4, 10430.6, ! -1.84668 10434.7, 10433.3, ! -1.43652 10437.8, 10436.6, ! -1.23145 Page 2 tapescan.txt 10448.7, 10446.4, ! -2.25781 10453.2, 10451.6, ! -1.6416 10455.9, 10454.6, ! -1.23145 10458.3, 10457.3, ! -1.02637 10466.2, 10464.8, ! -1.43652 10468.1, 10466.6, ! -1.4375 10470.1, 10468.5, ! -1.6416 10471.1, 10469.7, ! -1.43652 10473.2, 10471.3, ! -1.84766 10478.1, 10476.1, ! -2.05176 10482.4, 10481.2, ! -1.23145 10483.9, 10483.2, ! -0.615234 10485.3, 10485.1, ! -0.206055 10491.5, 10490.6, ! -0.821289 10494.3, 10492.5, ! -1.84766 10496.6, 10495.6, ! -1.02637 10499, 10497.6, ! -1.4375 10501.9, 10500.9, ! -1.02637 10505, 10504.2, ! -0.821289 10507.7, 10506.4, ! -1.23145 10509.7, 10508.3, ! -1.43652 10512.8, 10512, ! -0.821289 10516.1, 10514.6, ! -1.4375 10519, 10517.9, ! -1.02637 10521.6, 10519.8, ! -1.84668 10524.7, 10522.9, ! -1.84668 10530, 10528.3, ! -1.6416 10532.6, 10530.6, ! -2.05176 10540, 10538.6, ! -1.43652 10544.1, 10544.1, ! 0 10551.7, 10551.9, ! 0.205078 10555.2, 10553.8, ! -1.43652 10561.4, 10559.9, ! -1.43652 10568.3, 10566, ! -2.25781 10577.7, 10576.7, ! -1.02637 10580, 10579.3, ! -0.616211 10590.6, 10590.6, ! 0 10603.8, 10602.5, ! -1.23145 10607.1, 10606.2, ! -0.821289 10608.9, 10607.7, ! -1.23145 10616.7, 10615.3, ! -1.43652 10620.2, 10618.3, ! -1.84668 10626.2, 10625.3, ! -0.821289 10634, 10631.9, ! -2.05273 10646.1, 10644.2, ! -1.84766 10655.5, 10654.1, ! -1.43652 10679.1, 10679.8, ! 0.616211 10684.5, 10684.9, ! 0.410156 10737.7, 10738.1, ! 0.410156 10742, 10743.2, ! 1.23145 10752.9, 10753.5, ! 0.616211 10757.8, 10758.8, ! 1.02539 10764.4, 10764.8, ! 0.411133 10769.7, 10770.5, ! 0.821289 10772.2, 10772, ! -0.205078 10773.4, 10773.8, ! 0.411133 10782.2, 10782.8, ! 0.616211 10791, 10792.1, ! 1.02637 10795.4, 10796.2, ! 0.821289 10800.3, 10800.9, ! 0.615234 10804.4, 10805.4, ! 1.02637 10822.3, 10823.7, ! 1.43652 10828.2, 10829.5, . 1.23145 Page 3 tapescan.txt 10833.8, 10835.3, ! 1.4375 10839.6, 10841.2, ! 1.64258 10843.1, 10844.5, ! 1.4375 10844.9, 10847.2, ! 2.25781 10847.4, 10849, ! 1.64258 10849, 10851.3, ! 2.25781 10850.5, 10852.3, ! 1.84766 10854.1, 10855.7, ! 1.64258 10856.8, 10858.2, ! 1.43652 10865.2, 10865.8, ! 0.616211 10870.5, 10871.1, ! 0.615234 10878.2, 10878.2, ! 0 10879.6, 10880, ! 0.411133 10883.1, 10883.1, ! 0 10885.1, 10885.6, ! 0.411133 10888.8, 10889, ! 0.205078 10891.9, 10892.1, ! 0.205078 10899.1, 10895.2, ! -3.89941 10899.8, 10897.3, ! -2.46289 10916.2, 10915.4, ! -0.821289 10924.8, 10925.4, ! 0.615234 10931.4, 10931, ! -0.410156 10937.4, 10937.2, ! -0.205078 10940.8, 10941, ! 0.205078 10945.9, 10946.9, ! 1.02637 10950.6, 10951.5, ! 0.821289 10952.9, 10954.1, ! 1.23145 10956.2, 10956.8, ! 0.616211 10958, 10958.6, ! 0.615234 10959.9, 10961.1, ! 1.23242 10968.1, 10968.5, ! 0.410156 10971.2, 10971.4, ! 0.205078 10979.4, 10980.4, ! 1.02637 10984.7, 10984.3, ! -0.410156 10991.3, 10990.9, ! -0.411133 10993.4, 10993.8, ! 0.411133 10999.1, 10998.7, ! -0.411133 11002.1, 11001.7, ! -0.411133 11010.4, 11010, ! -0.410156 11013.2, 11012.2, ! -1.02637 11021.7, 11020.4, ! -1.23145 11024.1, 11023.7, ! -0.410156 11026.8, 11027, ! 0.205078 11037.1, 11035, ! -2.05273 11044, 11042.6, ! -1.43652 11052.5, 11053.7, ! 1.23145 11057.2, 11057.2, ! 0 11059.6, 11061.3, ! 1.64258 11064.6, 11064, ! -0.615234 11067.9, 11065.4, ! -2.46289 11071.8, 11071.4, ! -0.411133 11080.6, 11076.9, ! -3.69434 11084.6, 11080.9, ! -3.69434 11090.1, 11087, ! -3.0791 11096.8, 11094.4, ! -2.46387 11098.5, 11098.7, ! 0.205078 11103.2, 11103, ! -0.205078 11108.2, 11108.6, ! 0.411133 11114.6, 11113, ! -1.6416 11121.6, 11123.3, ! 1.64258 11125.1, 11126.1, ! 1.02637 11133, 11137.1, . 4.10449 11147.7, 11157.2, ! 9.44141 Page 4 tapescan.txt 11177.7, 11186.9, ! 9.23633 11210.7, 11215.8, ! 5.13086 11220.5, 11224.4, ! 3.89941 11244.1, 11245, ! 0.821289 11249.8, 11250.4, ! 0.615234 11254.1, 11255.4, ! 1.23145 11264.6, 11264.4, ! -0.206055 11277.8, 11278.4, ! 0.616211 11287.3, 11288.1, ! 0.820312 11290.6, 11291.6, ! 1.02637 EOZ END ! BASE CURVE: GROH, OFFSET CURVE: GRAX Tape Subfile: 1 231 records. . . Minimum record length: 10 bytes Maximum record length: 132 bytes **** FILE HEADER **** MWD .001 1024 *** LIS COMMENT RECORD *** 1111111II ! ! ! ! , 11111 Remark File Version 1.000 The data presented here is final and has been depth adjusted to a Primary Depth Control (PDC) log provided by well 15-11C dated 03 Jan 2011 above the Kick off Point of 11292 ft MD per Walter Tifental with BP Exploration (Alaska) , Inc. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale Units: Feet Frame spacing: 0.500000 Frame spacing units: [F ] Number of frames per record is: 36 One depth per frame (value= 0) Datum specification Block sub-type is: 1 FRAME SPACE = 0.500 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool Code Samples Units Size Length 1 GR MWD 68 1 AAPI 4 4 Page 5 tapescan.txt 2 ROP MWD 68 1 F/HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 106 Tape File Start Depth = 10350.000000 Tape File End Depth = 12251.000000 Tape File Level Spacing = 0. 500000 Tape File Depth Units = feet **** FILE TRAILER **** Tape Subfile: 2 119 records. . . Minimum record length: 54 bytes Maximum record length: 4124 bytes **** FILE HEADER **** MWD .002 1024 *** LIS COMMENT RECORD *** 1111111111111111111 Remark File version 1.000 This file contains the raw-unedited field MWD data. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale Units: Feet Frame spacing: 0.250000 Frame spacing units: [F ] Number of frames per record is: 36 One depth per frame (value= 0) Datum Specification Block Sub-type is: 1 FRAME SPACE = 0.250 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool Code samples Units Size Length 1 GR MWD 68 1 AAPI 4 4 Page 6 . tapescan.txt 2 ROP MWD 68 1 F/HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 245 Tape File Start Depth = 10350.000000 Tape File End Depth = 12550.000000 Tape File Level Spacing = 0.250000 Tape File Depth units = feet **** FILE TRAILER **** Tape Subfile: 3 258 records. . . Minimum record length: 54 bytes Maximum record length: 4124 bytes **** TAPE TRAILER **** MWD 11/01/01 3556330 01 **** REEL TRAILER **** MWD 11/04/20 BHI 01 Tape Subfile: 4 2 records. . . Minimum record length: 132 bytes Maximum record length: 132 bytes 0 Tape Subfile 1 is type: LIS 0 Tape Subfile 2 is type: LIS DEPTH GR ROP RAD RAS RPD RPS Page 7 . tapescan.txt 10350.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 10350.5000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 12251.0000 70.2000 77.4000 41.9680 98.3410 62.9090 58.4660 Tape File Start Depth = 10350.000000 Tape File End Depth = 12251.000000 Tape File Level Spacing = 0. 500000 Tape File Depth Units = feet 0 Tape Subfile 3 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 10350.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 10350.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 12550.0000 -999.2500 61.9000 -999.2500 -999.2500 -999.2500 -999.2500 Tape File Start Depth = 10350.000000 Tape File End Depth = 12550.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = feet 0 Tape Subfile 4 is type: LIS Page 8 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. 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