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CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:Wallace, Chris D (OGC) To:AOGCC Records (CED sponsored) Subject:FW: OPERABLE: WAG injector Y-10B (PTD #2120210) AA for slow TxIA Date:Friday, September 26, 2025 8:19:40 AM From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Thursday, September 25, 2025 5:11 PM To: PB Wells Integrity <PBWellsIntegrity@hilcorp.com>; Wallace, Chris D (OGC) <chris.wallace@alaska.gov> Cc: Regg, James B (OGC) <jim.regg@alaska.gov>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Subject: OPERABLE: WAG injector Y-10B (PTD #2120210) AA for slow TxIA Mr. Wallace, WAG injector Y-10B (PTD # 2120210) AA 3C.008 for continued WAG injection has been received. The well is now classified as OPERABLE. Please call with any questions or concerns. Ryan Holt Hilcorp Alaska LLC Field Well Integrity / Compliance Ryan.Holt@Hilcorp.com P: (907) 659-5102 M: (907) 232-1005 From: PB Wells Integrity Sent: Saturday, September 20, 2025 8:58 AM To: PB Wells Integrity <PBWellsIntegrity@hilcorp.com>; Wallace, Chris D (OGC) <chris.wallace@alaska.gov> Cc: jim.regg <jim.regg@alaska.gov>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Subject: UPDATE UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Mr. Wallace, WAG injector Y-10B (PTD # 2120210) passed a tubing pack off test on 08/25 and an AOGCC witnessed MIT-IA on 08/27. Dummy gas lift valves with extended packing were set on 09/05. With approval, we would like to keep the well on injection for an additional 28 days to advance an AA for continued injection with slow TxIA communication. Please call with any questions or concerns. Ryan Holt Hilcorp Alaska LLC Field Well Integrity / Compliance Ryan.Holt@Hilcorp.com P: (907) 659-5102 M: (907) 232-1005 From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Sunday, August 24, 2025 3:57 PM To: Wallace, Chris D (OGC) <chris.wallace@alaska.gov> Cc: jim.regg <jim.regg@alaska.gov>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Mr. Wallace, WAG injector Y-10B (PTD # 2120210) IA has slowly re-pressurized after the bleed on 04/04/25. The well will now be classified as UNDER EVALUATION and is on the 28-day clock for diagnostics. Plan forward: 1. DHD: PPPOT-T 2. Fullbore: AOGCC MIT-IA 3. Well Integrity: Additional diagnostics/possible AA application Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307) 399-3816 From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Thursday, April 3, 2025 10:11 AM To: chris.wallace@alaska.gov Cc: jim.regg <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: WAG Injector Y-10B (PTD #2120210) IA bleed Mr. Wallace, Injector Y-10B (PTD #2120210) had an IA bleed on 01/03/25 when the pressure was bled from 430 psi to 200 psi. The IA pressure has slowly climbed to 400 psi. We are going to bleed the IA down to lower pressure than the original bleed and will monitor. If it is determined the well has slow TxIA communication, we will make the well Under Evaluation and notify you. Please respond with any questions or concerns. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of theindividual or entity named above. If you are not an intended recipient or if you have received this message in error, you are herebynotified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently deletethis message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibilityis accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:Wallace, Chris D (OGC) To:AOGCC Records (CED sponsored) Subject:FW: UPDATE UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Date:Monday, September 22, 2025 8:27:54 AM From: Wallace, Chris D (OGC) Sent: Monday, September 22, 2025 8:00 AM To: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Cc: Regg, James B (OGC) <jim.regg@alaska.gov>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Subject: RE: UPDATE UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Ryan, Additional 28 days is approved. Thanks and Regards, Chris Wallace, Sr. Petroleum Engineer, Alaska Oil and Gas Conservation Commission, 333 West 7th Avenue, Anchorage, AK 99501, (907) 793-1250 (phone), (907) 276-7542 (fax), chris.wallace@alaska.gov CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Chris Wallace at 907-793-1250 or chris.wallace@alaska.gov. From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Saturday, September 20, 2025 8:58 AM To: PB Wells Integrity <PBWellsIntegrity@hilcorp.com>; Wallace, Chris D (OGC) <chris.wallace@alaska.gov> Cc: Regg, James B (OGC) <jim.regg@alaska.gov>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Subject: UPDATE UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Mr. Wallace, WAG injector Y-10B (PTD # 2120210) passed a tubing pack off test on 08/25 and an AOGCC witnessed MIT-IA on 08/27. Dummy gas lift valves with extended packing were set on 09/05. With approval, we would like to keep the well on injection for an additional 28 days to advance an AA for continued injection with slow TxIA communication. Please call with any questions or concerns. Ryan Holt Hilcorp Alaska LLC Field Well Integrity / Compliance Ryan.Holt@Hilcorp.com P: (907) 659-5102 M: (907) 232-1005 From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Sunday, August 24, 2025 3:57 PM To: Wallace, Chris D (OGC) <chris.wallace@alaska.gov> Cc: jim.regg <jim.regg@alaska.gov>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Mr. Wallace, WAG injector Y-10B (PTD # 2120210) IA has slowly re-pressurized after the bleed on 04/04/25. The well will now be classified as UNDER EVALUATION and is on the 28-day clock for diagnostics. Plan forward: 1. DHD: PPPOT-T 2. Fullbore: AOGCC MIT-IA 3. Well Integrity: Additional diagnostics/possible AA application Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307) 399-3816 From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Thursday, April 3, 2025 10:11 AM To: chris.wallace@alaska.gov Cc: jim.regg <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: WAG Injector Y-10B (PTD #2120210) IA bleed Mr. Wallace, Injector Y-10B (PTD #2120210) had an IA bleed on 01/03/25 when the pressure was bled from 430 psi to 200 psi. The IA pressure has slowly climbed to 400 psi. We are going to bleed the IA down to lower pressure than the original bleed and will monitor. If it is determined the well has slow TxIA communication, we will make the well Under Evaluation and notify you. Please respond with any questions or concerns. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently deletethis message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that theonward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibilityis accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Friday, October 10, 2025 SUBJECT:Mechanical Integrity Tests TO: FROM:Kam StJohn P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC Y-10B PRUDHOE BAY UNIT Y-10B Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 10/10/2025 Y-10B 50-029-20587-02-00 212-021-0 W SPT 8686 2120210 2172 473 469 468 470 108 239 292 313 OTHER P Kam StJohn 8/27/2025 Well under Evaluation for slow T x IA communication. MIT IA to Max Anticipated injection pressure. PWI header is 2100 psi 30 MinPretestInitial15 Min Well Name Type Test Notes: Interval P/F Well Permit Number: Type Inj TVD PTD Test psi API Well Number Inspector Name:PRUDHOE BAY UNIT Y-10B Inspection Date: Tubing OA Packer Depth 811 2461 2410 2400IA 45 Min 60 Min Rel Insp Num: Insp Num:mitKPS250827111522 BBL Pumped:3.3 BBL Returned:3.5 Friday, October 10, 2025 Page 1 of 1 CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:Wallace, Chris D (OGC) To:AOGCC Records (CED sponsored) Subject:FW: UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Date:Monday, August 25, 2025 7:52:45 AM From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Sunday, August 24, 2025 3:57 PM To: Wallace, Chris D (OGC) <chris.wallace@alaska.gov> Cc: Regg, James B (OGC) <jim.regg@alaska.gov>; Torin Roschinger <Torin.Roschinger@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: UNDER EVALUATION: WAG injector Y-10B (PTD #2120210) slow TxIA communication Mr. Wallace, WAG injector Y-10B (PTD # 2120210) IA has slowly re-pressurized after the bleed on 04/04/25. The well will now be classified as UNDER EVALUATION and is on the 28-day clock for diagnostics. Plan forward: 1. DHD: PPPOT-T 2. Fullbore: AOGCC MIT-IA 3. Well Integrity: Additional diagnostics/possible AA application Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307) 399-3816 From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Thursday, April 3, 2025 10:11 AM To: chris.wallace@alaska.gov Cc: jim.regg <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: WAG Injector Y-10B (PTD #2120210) IA bleed Mr. Wallace, Injector Y-10B (PTD #2120210) had an IA bleed on 01/03/25 when the pressure was bled from 430 psi to 200 psi. The IA pressure has slowly climbed to 400 psi. We are going to bleed the IA down to lower pressure than the original bleed and will monitor. If it is determined the well has slow TxIA communication, we will make the well Under Evaluation and notify you. Please respond with any questions or concerns. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently deletethis message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that theonward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibilityis accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. W,11 Y-NI TIO Plot Tubing —On ■ Need ♦ Operable i Not Oper ♦ Under Eval t Man. IA —� Man. OA Man. OOA ♦ Man. "A -p—Man. WRIT MQ4 Ofi Q4 =101 07AWI V1154?4 0Y0M!4 WlW4 011=4 WlMNI 052W2a 1WlQ4 10iW4 11AQ6 11=4 1} 4 1} 4 01AW5 01117M 01411M Wl g OYM 01M35 WR&25 W110 042 05N 05R525 0g9fiQ5 Ofi.4Y15 O7g OA180 MlM W W5 CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:Wallace, Chris D (OGC) To:AOGCC Records (CED sponsored) Subject:FW: WAG Injector Y-10B (PTD #2120210) IA bleed Date:Thursday, April 3, 2025 1:41:49 PM From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Thursday, April 3, 2025 10:11 AM To: Wallace, Chris D (OGC) <chris.wallace@alaska.gov> Cc: Regg, James B (OGC) <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: WAG Injector Y-10B (PTD #2120210) IA bleed Mr. Wallace, Injector Y-10B (PTD #2120210) had an IA bleed on 01/03/25 when the pressure was bled from 430 psi to 200 psi. The IA pressure has slowly climbed to 400 psi. We are going to bleed the IA down to lower pressure than the original bleed and will monitor. If it is determined the well has slow TxIA communication, we will make the well Under Evaluation and notify you. Please respond with any questions or concerns. Andy Ogg Hilcorp Alaska LLC Field Well Integrity andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently deletethis message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that theonward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibilityis accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. Wall:Y-M TIO Plot t Tubing On ■ Need ♦ Operable } Not Oper ♦ Under Eval - ■Man. IA —�— Man. OA Man. WA Man. OOOA p Man. MT MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Friday, May 19, 2023 SUBJECT:Mechanical Integrity Tests TO: FROM:Adam Earl P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC Y-10B PRUDHOE BAY UNIT Y-10B Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 05/19/2023 Y-10B 50-029-20587-02-00 212-021-0 W SPT 8686 2120210 2172 440 441 441 441 114 245 247 245 4YRTST P Adam Earl 4/15/2023 MIT-IA 30 MinPretestInitial15 Min Well Name Type Test Notes: Interval P/F Well Permit Number: Type Inj TVD PTD Test psi API Well Number Inspector Name:PRUDHOE BAY UNIT Y-10B Inspection Date: Tubing OA Packer Depth 768 2401 2354 2341IA 45 Min 60 Min Rel Insp Num: Insp Num:mitAGE230419201045 BBL Pumped:6.7 BBL Returned:3.8 Friday, May 19, 2023 Page 1 of 1 Wallace, Chris D (DOA) From: AK, GWO Well Integrity Engineer <AKGWOWeIISiteEnginee@bp.com> Sent: Thursday, May 16, 2019 7:16 AM To: AK, GWO Well Integrity Engineer; Wallace, Chris D (DOA); AK, OPS EOC Specialists; Ak, OPS GC1 Facility PTL; Ak, OPS GC1 Field PTL; AK, OPS GC1 OSM; AK, OPS GC1 Wellpad Lead; AK, OPS PCC Ops Lead; AK, OPS Prod Controllers; AK, OPS Well Pad DG; AK, OPS Well Pad EKG; AK, OPS Well Pad YP; Ak, Ops West Area TL; AK, RES GPB East Wells Opt Engr; AK, RES GPB West Wells Opt Engr; AKOpsProdEOCTL, Derrick, Laurie R, Haffener, Jordan Cc: Regg, James B (DOA); AK, GWO Completions Well Integrity; AK, GWO DHD Well Integrity; AK, GWO Projects Well Integrity; AK, GWO SUPT Well Integrity; AK, OPS FF Well Ops Comp Rep; AKIMS App User; Cismoski, Doug A, Daniel, Ryan; Dempsey, David G; Dickerman, Eric; Hibbert, Michael; Janowski, Carrie; Montgomery, Travis J; Munk, Corey; Obrigewitch, Beau; O'connor, Katherine; Sternicki, Oliver R; Tempel, Joshua; Worthington, Aras 1; AK, GWO Well Integrity Well Information Subject: OPERABLE: Injector Y -10B (PTD #2120210) TAA communication successfully mitigated with gas lift valve change out All, Injector Y -SOB (PTD #2120210) was made under evaluation on 04/18/2019 in order to perform warm diagnostics after a slickline reset dummy gas lift valves to mitigate TxIA communication. The well was brought on MI injection on 04/18 and has shown no signs of IA repressurization during the 28 day UE period. On 4/27/2019 DHD performed a passing MIT -IA to 2,931psi proving competency of the primary and secondary well barriers. The passing pressure test and stable IA pressure indicate that the TxIA communication has successfully been mitigated. At this time the well is reclassified as Operable. Please respond with any questions, Joshua Stephens Well Integrity Engineer Office: 907-659-8110 Cell: 907-341-9068 From: AK, GW I Integrity Engineer <AKGWOWeliSiteEnginee@bp.com> Sent: Thursday, April 1 , 19 6:49 AM To: AK, GWO Well Integrity En iager <AKGWOWeliSiteEnginee@bp.com>; 'chris.wallace@alaska.gov' <chris.wallace@alaska.gov>; AK, OPS EOC Specialists <AKOPSEOCSpecialists@bp.com>; Ak, OPS GC1 Facility PTL <AkOPSGC1FacilityPTL@bp.com>; Ak, OPS GC1.F,ield PTL <AkOPSGC1FieldPTL@bp.com>; AK, OPS GC1 OSM <AKOPSGCIOSM@bp.com>; AK, OPS GC1 Wellpad'EeadAKOPSGC1WellpadLead @bp.com>; AK, OPS PCC Ops Lead <AKOPSPCCOpsLead@bp.com>; AK, OPS Prod Controllers <akopsprodcontrollersl@bp.com>; AK, OPS Well Pad DG <AKOPSWellPad DG@bp.com>; AK, OPS Well Pad EKG <AKOPSWellPa KG@bp.com>; AK, OPS Well Pad YP <AKOPSWeliPadYP@bp.com>; Ak, Ops West Area TL <AkOpsWestAreaTL p,com>; AK, RES GPB East Wells Opt Engr <AKRESGPBEastWellsOptEngr@bp.com>; AK, RES GPB West Wells Opt Engr <AKRE-SGPBWestWellsOpt2@bp.com>; MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Tuesday, April 30, 2019 TO: Jim Regg ')jig SUBJECT: Mechanical Integrity Tests P.I. Supervisor 1\ � BP EXPLORATION (ALASKA) INC. Y -10B FROM: Guy Cook PRUDHOE BAY UNIT Y -10B Petroleum Inspector Ste: Inspector Reviewed By: P.I. Supry 33l— NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT Y-1013 Insp Num: mitGDC190428111059 Rel Insp Num: API Well Number 50-029-20587-02-00 Inspector Name: Guy Cook Permit Number: 212-021-0 Inspection Date: 4/27)2019 Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min -� `00W23072309 Well v 108 (Type Inj -TVD 8686 Tubing ros oypeTesrr Test psi 217 IA 479ned:6.3 QA 19 24 Interval 4YRTST P/F P i Notes: 4 year MIT -IA post gas lift valve change out. Test to 3000 psi maximum. Testing done with a triplex pump, bleed trailer and calibrated gauges. Tuesday, April 30, 2019 Page I of 1 Wallace, Chris D (DOA) From: AK, GWO Well Integrity Engineer <AKGWOWeliSiteEnginee@bp.com> Sent: Thursday, April 18, 2019 6:49 AM To: AK, GWO Well Integrity Engineer; Wallace, Chris D (DOA); AK, OPS EOC Specialists; Ak, OPS GC1 Facility PTL; Ak, OPS GC1 Field PTL; AK, OPS GC1 OSM; AK, OPS GC1 Wellpad Lead; AK, OPS PCC Ops Lead; AK, OPS Prod Controllers; AK, OPS Well Pad DG; AK, OPS Well Pad EKG; AK, OPS Well Pad YP; Ak, Ops West Area TL; AK, RES GPB East Wells Opt Engr; AK, RES GPB West Wells Opt Engr; AKOpsProdEOCTL, Derrick, Laurie R; Haffener, Jordan Cc: Regg, James B (DOA); AK, GWO Completions Well Integrity; AK, GWO DHD Well Integrity, AK, GWO Projects Well Integrity; AK, GWO SUPT Well Integrity; AK, OPS FF Well Ops Comp Rep; AKIMS App User, Cismoski, Doug A, Daniel, Ryan; Dempsey, David G; Dickerman, Eric; Hibbert, Michael; Janowski, Carrie; Montgomery, Travis 1; Munk, Corey; Obrigewitch, Beau; O'connor, Katherine; Sternicki, Oliver R; Tempel, Joshua; Worthington, Aras J; AK, GWO Well Integrity Well Information Subject: UNDER EVALUATION: Injector Y -10B (PTD #2120210) Ready to be brought online for diagnostics -------- All, Injector Y-1013 (PTD #2120210) was made not operable on 1/4/2019 when it could not be placed on MI injection for diagnostics post gas lift valve replacement. The well is now ready to be put on injection and is reclassified as Under Evaluation. Plan Forward: 1. Wellhead Tech: PPPOT-T, torque LDS as needed — Done 2. DHD MIT -IA — Done 3. Slickline: Replace DGLVs with new extended packing DGLVs — Done 4. OPS: Put on Injection 5. DHD: AOGCC MIT -IA 6. OPS: Shut in well for monitoring 7. DHD: Monitor IA for BUR. 8. APE/WIE: Additional diagnostics as needed Please respond if in conflict, Joshua Stephens Well Integrity Engineer Office: 907-659-8110 Cell: 907-341-9068 From: AK, GWO Well Inte ' Engin( Sent: Friday, January 4, 2019 7:50 To: 'chris.waIlace @alaska.gov' <chris Ak, OPS GC1 Facility PTL <AKOPSGCI <AKG W 0 W ellSiteEnginee @bp.com> AK, OPS EOC Specialists <AKOPSEOCSpecialists@bp.com>; PS GC1 Field PTL <AkOPSGCiField PTL@bp.com>; AK, • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Friday,May 18,2018 TO: Jim Regg - P.I.Supervisor Fell 51Z31l 16 SUBJECT: Mechanical Integrity Tests BP EXPLORATION(ALASKA)INC. Y-10B FROM: Bob Noble PRUDHOE BAY UNIT Y-10B Petroleum Inspector Src: Inspector Reviewed By: P.I.Supry NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT Y-10B API Well Number 50-029-20587-02-00 Inspector Name: Bob Noble Permit Number: 212-021-0 Inspection Date: 5/12/2018 y Insp Num: mitRCN180512143935 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well Y-10B Type Inj G TVD 8686 , I Tubing 2318 2334 " 2340 ' 2345 ' PTD 2120210 " Type Test SPT Test psi 2172 - IA 242 2997 - 2962 • 2962 BBL Pumped: 4.8 - BBL Returned: 4.7 • OA 15 - 29 31 32 Interval 4YRTST P/F P ✓ Notes: SCANNED JUN 0 12016 Friday,May 18,2018 Page 1 of 1 o i 0 0 9 Zi N 0 N M V U) U) n N I �I �I �I ,- I 1 -I N N } Cl Cl CI CI CI CI CL a a .o ,o ,o .o ,o .o N } >- LJ- >-LL )- 3 )- co rm >L ifs m io > m c m Io Io 10_4 I� I� I" I' I� I" 0 6 ar) aM a� aN c aw- a� a� a( u; CO 0 m �I CO ,TI m ,rI CO ,TI mc)I CO CO CO m�I o N N O)o C O o o a)O o o ai O a 0 a 0 a E. 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'- Z .. co w O O l`4 ym 0 J Q_ C I J a= E roo t O N c 2 0 0 I O = a Z y o m 11 >- ! E E 0 0 o a Q r o. co E V 1 Z v . vl IJ, �� = N N C W ri) as Q c 0 ~ E �� V/ c • w 1 1 SI Oh Q re a c m 23 if) i a 2- m OQ c 92 2 1 11%1 £ 0 0 0 2 0 I t0 Z N a) a V N . Q co▪ '= O Z O i \�1 a) eti gQ0 1 o 0 .,„ 0 N W E a 1 0 i 0 N iN W .0 ~ y fq E E Z C w y m t 'n w m O ce a) - U o a, C I p y Z ~ c c 2 Z c as o v 2 co m a o g o o «. c c v 0 - y a) c r E 0 0. 0 o a a m 0 E SI g,0 E a 8 a 2 _ z o a C0 I O o W 0 0 0 MEMORANDUM ,tate of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday,July 02,2014 TO: Jim Regg �if 711010 SUBJECT: Mechanical IntegrityTestsP.I.Supervisor BP EXPLORATION(ALASKA)INC Y-10B FROM: Lou Grimaldi PRUDHOE BAY UNIT Y-10B Petroleum Inspector Src: Inspector Reviewed By: P.I.Supry NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT Y-10B API Well Number 50-029-20587-02-00 Inspector Name: Lou Grimaldi Permit Number: 212-021-0 Inspection Date: 5/2/2014 lnsp Num: mitLG140502184328 Rel lnsp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well Y-10B Type Inj G' TVD T 8686 IA 497 2949 . 2917 1 2897 • ! 2881 . 2875 PTD 2120210 ' Type Test SPT Test psi 2172 • OA 497 - 446 - 442 437 428 423 . Interval INITAL P/F P - Tubing 2335 . 2286 2276 2265 2264 2269 . Notes: Initial PostWorkOver MIT.GC2 having problems keeping stable rate to this pad forced extending test 30 additional minutes. 444etalLle ,4S —rt-0 ( b4. ' t.‘-lett SClhe:l cwl-c Wednesday,July 02,2014 Page 1 of 1 N 'V r F S O O O 6 • + 1 I a • • • • • ees • • U U N N rn N U N N v= Q , O cn d -a O C• to i. O Q a 0 C � O L L y N tfl 11) a a, Q F. . n f• 1• • I e 1 - o • I � ' I ;� ITS= CNV I W 3Lt1iAQ= GRAY-1y-1 0 B ( SAFETY ES: WELL ANGLE>70'@ 11767'"-.1425 IACTUATOR= BAKER C READINGS AVERAGE 125 ppm WHEN ON MI'"-WELL IOKa 8 V- 85 7' REQUIRES SSSV WHEN ON MI'"'CHROME TBG&LNR. I SF.fiLV= 51.59' k KOP= -2700' /•4 ' ' ( 2116' -4-1/2"HES X NIP,D=3.813"1 Max Angie= 107°@ 11988'(20"CONDUCTOR --r ? `+ 1 Datum M7= 11524' �I , ! i I Datum TVD- 8800'SS 9-5/8"DV PKR 2574' 2597' i-�4-112"LUBR V ALV E(2 CONTROL LINES) + 2597' -1 4-1/2"FORMATION ISOLATION VALVE-ii, 13 3!8"CSG,72#`L-B0,D=12.347',-� 2709' w g -- 0=3.895-(04/23114) [975/8"CSG,47#,L.-80 BTC, t =8.681"-Ii 2781' L_ 2621' --19-518"X 7"BKR ZXPN LIP w 1 TIEBK,ID=6.19" 19_5/8"B %MKR STOCK(12/16/13) L- 2781' _ "\s, 2636' 1--{9-518"X 7"BKR FLD+'LOCK HGR.ID-6.180' 19518"FzSV(12/16/13)_._.� 2803' ________._._.______. --____. ML.L.OUT WAIDOW(Y-108)2 1 -2798' GAS LIFT MANDRELS IMinimum ID =M__. 3.813" @ 2116' 1 CST NO TVD I DEV TYPE VLV 'LATCH PORT DAM 4•-1/2" HES X NIPPLE i r + f 4 3711 3680 26 KBG 4 5 DMY ' BK E 0 04/22/14 , 1.I 3 7849 5897 47 KBG-4-5 DM , BK 1 0 04/22/141 TOP OF CEMENT(12/31/13) I-� 9635' 1 2 9792 7535 33 KBG-4-5 MY BK I 0 01/29/14 �1 11194 8637 39 KBG-4-5 OMY BK 0 01/2919 t+ �, ' , L11228' .F14-1/2"HES X NP,D=3.813_ .w r,4 r' r' 11257' H7"X 4-1/2"HES TNT PKR,D=3.856" t ■ , 1"-19293' --(4-1/2"HES X NP,D=3.813" i .$ i Ci L 11363' -{4-112"HES X NAS,D=3.813" [TOP OF 4-1/2"LNJ-L 11373' r 113737-1-17'X 5"BKR HRD-E ZXF'N LIP,ID=4.340' 4-112'TBG,12.61/,13CR-80 VAM TOP, -{11381' a ' 11381' -14-1/2'WLEG,D=4 00 .0152 bpf,D=3.958" --•l ELMD TT NOT LOGGED 7"LNR,26#,L-80 VAM TOP HC, -f 11533' 11395' _-{7'X 5'BKR FLOC-LOCK HGR D=4.25' .0383 bpf,ID=6.276" 11405' -15"X 4-1/2'XO BUSHNG,ID=3.91' C3 1131 423 4 1/2'HES SWB-L PKRS 4112"FRAC PORT } NOTE: SECTIONS OF 4-1/2"LNR, 12.6#, , NO TOP DEPTH MND ND DEPTH 0/C P DATE SEAT SIZE 13CR-80 HYD 521, .0152 bpf, ID= 3.918' 3 (g 11 11612 3.920' 6 12906 0 1 03102/14 2.750" 16726'- 17367', 17522-17839'& 17871'-18072' 1 10 12779 3.920' 5 13122 0 103/02/14 2.625" li:..1 1E1 9 12995 3.920' 4 15055 0 103/02/14 2.500' ® ® 8 13211 3.920" 3 15632 0 103/02/14 2.375' 7 I 14887 3.920" 2 17373 0 103/02/14 2.250" 14-1/2"LNR,12.6#,13CR-80 HYD 521, -I 16726'_17367' \ 23 6 15143 3.920" 1 17844 0 103/02/141 Dal 1 .0152 bpf,0=3.918" ® 5 15426 3.920" O=OPEN C=CLOSED {`�" 4 15782 3.920" 4-1/2'LNR 12.6#,13CR-80 HYD 521, --{17522'-17839 3 17206 3.920' .0152 bpf,ID=3.918' ® ® 2 17483 3.920" 4-112"LNR 12.6#,13CR-80 I-4Y D 521, -1 17871'-18072' 1-1-171 17912 3.920" .0152 bpf,ID=3.918' Cd. ikal . 17471' -{4-1/2"BKR SIIPT TOOL V ERFICATIDN SUB,D=3.87" 4-1/2"LNR,13.5#,13CR-80 HYD 521, -{ 18129' .0150 bpf,D=3.920' 4-3/4'7/8 2 STAGE AD MIA MOTOR AND 6.125' - 18154' 18107' --14-1/2"TOE CR(XJI AT[JG SUB,D=1.00"(PBTD) XR20 BIT DAM REV BY ODMwBfiS - DATE REV BY COMMENTS FRUDHDEBAY UNIT 07/22181 IMTIAL COMPLETION 03/24/14 ROUND OPEN FRAC PORTS(03/02/14) VAIL: Y-10B 11105/65' D-14 RHO 03/24/14 SVM?GLV CIO(03/20/14) FI IMT No:'120210 02/22/05 NORDIC 1 CTD SIDETRACK(Y-10A) 04/24/141K:/J MGS/PJC SET SEW-1(04/23/14) API No: 50-029-20587-02 08/14/07 D-14 RNO 05/01/14 JMNVJMD GLV CIO(04/22/14) SEC 33,111N,R13E,1410'Ft&&205'Fa 01/31/14 DOYON25 SIDETRACK(Y-10B) 02/25/14 GS/JMD FINAL ODE AFFROVAL BP Exploration(Alaska) 2-.V2.-a 24 IATA LOGGED gyro/data /2014 MKBENDER Gyrodata Incorporated RECEIVED 23000 Northwest Lake Dr. JUN t y Houston,TX 77095 JUN O 201 (281)213-6300 Fax:(281)213-6301 H OGvC SURVEY REPORT BP Exploration Drill site: Y,Well Y-01B,4 1/2" Tubing Prudhoe Bay,N. Slope Borough Alaska AK0514GCM151 27 May, 2014 Serving the Worldwide Energy Industry with Precision Survey Instrumentation gyro/data Gyrodata Incorporated 23000 Northwest Lake Dr. Houston,TX 77095 (281)213-6300 Fax:(281)213-6301 June 4, 2014 State of Alaska - AOGCC Attn: Makana Bender 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 Re: Drill site: Y, Well Y-01B, 4 1/2" Tubing Prudhoe Bay,N. Slope Borough Alaska AK0514GCM151 Enclosed, please find two (2) copies, and one (1) disk of the completed survey for the above referenced well. We would like to take this opportunity to thank you for using Gyrodata, and we look forward to serving you in the future. Sincerely, / i'7 Rob Shoup VP of Special Services RS:fec Serving the Worldwide Energy Industry with Precision Survey Instrumentation N_ g O O o V•1 c) U 0O g o a M x a 4 o -0 0 3 b w tV U H , O'!i- v ;1Z,): ba) a a x a0 U 04g c U O Q - 0 0 CL.. 'L77. 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Ce D > O ce _ILIC _ ta. 0 I X Ira 1111 1111 1111 1111 1111 • 1111 II ___%1" 0 1 1 1 1 1 1 1 0 ,..,,C2L 0 in o u-) 0 in o u) o w __I (y) re) (NI NI ,-1 ,--1 (400i/baP) AIDAA3S DTIDOCI ami ° W J o ro > L -c F O cri J o )-4 000 � 0w QQ '`' , c p - L ,--1 - Lit U U - C O D Q N O O O O N Z . . - r- m N — m O O i >- '-i Z J F- J (n W Q W W I- N J O J O CC 0 0,--I 2 U D O O U O m w � a O O -O Y (nZ Z Q Q - .�mQ W O w 5 QOw Ce D — -1 C a o I 1 I I r I I O X _ +� W - to O O Co O O O O CL U O O O O O O o O CD O O O O CO �p to coM N ,--I (ii) 9NIH12iON Survey QC - RGS-CT : :ification Sheet • f 1 , ;` SURVEY QUALITY CONTROL- SPECIFICATION DATA PRE-JOB CALIBRATION VERIFICATION CHECK (ROLL TEST) Station ToolFace Gravity Error Scale Factor Rate Error (deg) (Mg) Uncertainty (deg/min) 64 269.55 -2099.69 -0.00051672 7.06 63 269.55 -2097.12 -0.00051609 5.63 62 225.74 -49.26 -0.00001231 -15.11 61 225.74 -45.99 -0.00001150 -16.48 60 45.04 389.92 0.00009759 -8.57 59 45.04 396.45 0.00009923 -5.40 58 359.97 2582.23 0.00065637 6.14 57 359.97 2583.92 0.00065680 2.58 56 329.86 1464.90 0.00036919 5.67 55 329.86 1466.78 0.00036967 6.33 54 299.88 -840.81 -0.00020852 7.24 53 299.88 -836.15 -0.00020737 8.19 52 269.36 -2073.88 -0.00051039 5.30 51 269.36 -2076.27 -0.00051098 2.50 50 240.98 -1143.13 -0.00028349 -2.04 49 240.98 -1134.74 -0.00028141 -4.21 48 210.35 1138.99 0.00028710 -9.73 47 210.35 1144.64 0.00028853 -9.87 46 180.16 2461.55 0.00062554 -18.25 45 180.16 2464.65 0.00062633 -16.39 44 150.22 1606.24 0.00040498 -20.21 43 150.22 1609.75 0.00040587 -21.12 42 120.24 -495.45 -0.00012297 -14.95 41 120.24 -494.91 -0.00012284 -20.94 40 89.97 -1634.28 -0.00040255 -15.92 39 89.97 -1627.33 -0.00040085 -16.65 38 59.49 -621.31 -0.00015432 -8.86 37 59.49 -606.85 -0.00015073 -9.81 36 30.12 1480.87 0.00037356 -2.94 35 30.12 1482.18 0.00037389 -2.35 34 359.86 2579.75 0.00065573 3.80 33 359.86 2585.28 0.00065715 1.13 32 269.54 -2057.91 -0.00050648 1.98 31 269.54 -2057.23 -0.00050631 0.07 30 224.59 50.77 0.00001270 -11.92 29 224.59 50.32 0.00001259 -13.42 28 45.41 368.78 0.00009228 -3.58 27 45.41 383.14 0.00009588 -4.87 26 0.35 2569.29 0.00065307 7.68 25 0.35 2579.08 0.00065557 5.73 24 329.66 1450.22 0.00036546 10.19 23 329.66 1459.02 0.00036768 9.87 22 299.66 -813.91 -0.00020185 12.00 21 299.66 -809.46 -0.00020074 11.13 20 269.83 -1995.90 -0.00049127 5.81 19 269.83 -2005.32 -0.00049358 5.52 18 240.69 -1084.92 -0.00026911 -0.58 17 240.69 -1081.42 -0.00026824 -1.33 16 210.30 1148.00 0.00028938 -7.83 15 210.30 1148.32 0.00028946 -8.47 14 179.55 2447.11 0.00062185 -15.13 13 179.55 2455.26 0.00062393 -14.63 12 149.19 1545.91 0.00038958 -17.25 11 149.19 1548.98 0.00039036 -19.55 10 117.83 -593.31 -0.00014711 -19.45 9 117.83 -598.04 -0.00014829 -19.89 8 89.99 -1545.06 -0.00038064 -14.60 7 89.99 -1531.86 -0.00037740 -14.95 6 59.93 -569.33 -0.00014140 -5.62 5 59.93 -568.38 -0.00014117 -6.23 SURV-Q167(OPS SUR-MA-003) 19`"Nov 03/Rev 15 Page 1 of 7 AK0514GCM151 Survey QC - RGS-CT : :ification Sheet WO/data 4 30.20 1468.27 0.00037037 1.69 3 30.20 1470.58 0.00037095 0.05 2 359.39 2537.34 0.00064490 5.58 1 359.39 2527.22 0.00064231 6.48 MBO = -0.04 Gravity Error = 304.01 Scale Factor Uncertainty = 0.00008046 Rate Error= -4.59 POST-JOB CALIBRATION VERIFICATION CHECK (ROLL TEST) Station ToolFace Gravity Error Scale Factor Rate Error (deg) (Mg) Uncertainty (deg/min) 20121 269.77 -2028.18 -0.00049919 0.49 20120 269.77 -2024.86 -0.00049837 -0.81 20119 225.16 34.86 0.00000872 -19.09 20118 225.16 38.75 0.00000969 -21.65 20117 45.37 419.84 0.00010507 -3.76 20116 45.37 426.11 0.00010664 -5.39 20115 359.87 2651.94 0.00067418 7.08 20114 359.87 2650.85 0.00067390 5.19 20113 329.92 1533.18 0.00038646 7.00 20112 329.92 1536.97 0.00038742 7.74 20111 300.14 -756.37 -0.00018763 13.35 20110 300.14 -754.80 -0.00018724 11.51 20109 270.00 -2005.54 -0.00049364 0.13 20108 270.00 -2000.94 -0.00049251 -0.19 20107 239.05 -958.99 -0.00023807 -4.37 20106 239.05 -967.61 -0.00024021 -6.31 20105 209.61 1271.23 0.00032060 -12.60 20104 209.61 1266.16 0.00031932 -11.91 20103 179.72 2548.49 0.00064774 -17.21 20102 179.72 2558.12 0.00065020 -15.64 20101 150.48 1702.39 0.00042935 -20.12 20100 150.48 1708.92 0.00043100 -22.52 20099 120.61 -387.28 -0.00009616 -17.44 20098 120.61 -389.58 -0.00009673 -16.80 20097 91.02 -1554.18 -0.00038288 -12.44 20096 91.02 -1551.10 -0.00038212 -13.34 20095 60.57 -598.03 -0.00014849 -5.02 20094 60.57 -594.76 -0.00014768 -4.50 20093 31.44 1475.29 0.00037198 -0.26 20092 31.44 1478.10 0.00037269 -0.60 20091 359.10 2685.19 0.00068267 1.64 20090 359.10 2691.28 0.00068422 -2.30 20089 270.22 -1942.30 -0.00047813 0.23 20088 270.22 -1940.04 -0.00047757 0.73 20087 224.91 115.95 0.00002901 -13.10 20086 224.91 119.78 0.00002997 -15.62 20085 44.16 564.29 0.00014133 0.61 20084 44.16 570.56 0.00014291 0.47 20083 359.15 2672.32 0.00067938 7.75 20082 359.15 2682.73 0.00068204 6.28 20081 330.27 1603.99 0.00040442 7.92 20080 330.27 1606.70 0.00040511 9.14 20079 299.99 -678.05 -0.00016822 7.76 20078 299.99 -675.20 -0.00016751 6.52 20077 269.39 -1894.00 -0.00046629 4.61 20076 269.39 -1876.45 -0.00046198 5.75 20075 240.78 -960.27 -0.00023824 0.23 20074 240.78 -959.41 -0.00023803 -1.57 20073 209.99 1269.35 0.00032009 -9.40 20072 209.99 1270.16 0.00032029 -11.47 20071 180.84 2559.21 0.00065050 -16.00 20070 180.84 2553.74 0.00064910 -15.95 20069 149.07 1660.71 0.00041859 -17.76 SURV-Q167(OPS SUR-MA-003) 19th Nov 03/Rev 15 Page 2 of 7 AK0514GCM151 g y ri*jig t a Survey QC - RGS-CT :cification Sheet + 20068 149.07 1667.15 0.00042022 -18.31 20067 120.10 -315.42 -0.00007831 -18.17 20066 120.10 -314.24 -0.00007802 -16.15 20065 90.87 -1407.39 -0.00034682 -9.06 20064 90.87 -1396.21 -0.00034407 -9.36 20063 59.63 -426.66 -0.00010601 -1.95 20062 59.63 -418.08 -0.00010388 -2.33 20061 28.61 1683.38 0.00042504 4.00 20060 28.61 1696.43 0.00042834 2.54 20059 359.57 2650.07 0.00067370 9.41 20058 359.57 2645.15 0.00067245 7.43 MBO = 0.01 Gravity Error = 413.96 Scale Factor Uncertainty = 0.00010797 Rate Error= -4.30 INITIALISATION Gyro Compass Reading/Station Raw Inclination Raw Azimuth Abs(ERK ERTho) 135 10.01 13.93 0.0161 136 10.01 14.02 0.0117 137 10.01 14.00 0.0174 138 10.01 14.03 0.0204 139 10.01 14.04 0.0118 140 10.01 13.99 0.0032 Average 10.01 14.00 0.0134 Tolerance on Average* '`'AiLiAgrkriiiAVA040thligrt0.0830 Standard Deviation 0.00 0.04 0.0060 Tolerance on St. Dev.** 0.1° 0.2° 0.0402 Advanced Initialisation Azimuth F AN Advanced Initialisation Standard Deviation Tolerance=TBA * Tolerance on Average of earth horizontal rate difference Is given by (1/Cosl)*4[(CosA*SinI*0.1)2+0.0827 0/hr ** Tolerance on Standard Deviation of earth horizontal rate difference tolerance is given by (1/Cosi)*J[(CosA*SinI*0.1)2+(0.082/(n-1))] °/hr DRIFT TUNES Drift Tune Ending Ending Ending Ending Residual Gx Bias Residual Gy Bias Number Time Depth Inclination Azimuth Start End Start End 1 651.66 3700.50 24.97 14.76 -0.002 0.005 -0.003 0.001 2 621.57 4199.94 40.65 13.64 0.002 -0.000 _ -0.003 0.002 3 621.63 4700.58 55.75 15.32 0.003 -0.001 -0.002 0.002 4 1276.28 6801.36 57.53 17.13 -0.005 0.008 -0.002 0.001 5 1228.71 8801.09 53.03 17.18 -0.002 0.001 0.008 -0.006 6 1262.95 10800.08 58.08 26.09 -0.019 0.018 -0.004 0.003 7 1031.42 11800.85 43.23 37.04 -0.014 0.014 -0.001 0.001 8 1037.94 12590.68 76.44 133.49 0.006 -0.006 -0.002 0.002 9 987.99 11799.69 43.91 36.68 -0.003 0.003 0.001 -0.002 10 545.16 12229.58 55.73 87.54 0.003 -0.003 -0.001 0.001 11 1410.36 10799.97 58.02 26.15 0.001 -0.001 0.004 -0.004 12 1850.91 8799.74 52.97 17.72 0.021 -0.022 0.002 0.000 13 1835.51 6799.83 57.36 17.72 0.016 -0.015 0.002 0.001 14 1897.36 4698.98 56.06 16.13 0.013 -0.011 0.001 0.003 SURV-Q167(OPS SUR-MA-003) 150 Nov 03/Rev 15 Page 3 of 7 AK0514GCM151 Survey QC - RGS-CT cification Sheet Wig0/data 15 636.05 4200.21 40.87 14.38 0.006 -0.005 0.001 0.001 16 635.58 3699.66 25.66 15.30 0.007 -0.004 0.002 0.001 17 711.88 3164.64 10.11 11.23 0.004 0.000 0.000 -0.003 Average 0.002 -0.001 0.000 0.000 Standard Deviation 0.010 0.010 0.003 0.003 Tolerance for both the Average and the Standard Deviation 0.033°/hr 0.033°/hr 0.033°/hr 0.033°/hr INCLINATION AND AZIMUTH INRUN AND OUTRUN COMPARISON Depth Corrected Inclination Corrected Azimuth Inrun* I Outrun * I Difference Inrun * I Outrun * I Difference 100.00 0.24 0.26 -0.02 86.17 126.31 -40.14 200.00 0.36 0.28 0.08 107.63 126.50 -18.88 300.00 0.27 0.24 0.03 88.77 98.42 -9.65 400.00 0.37 0.25 0.12 105.95 94.54 11.41 500.00 0.37 0.26 0.11 119.92 96.16 23.77 600.00 0.44 0.32 0.12 115.44 105.19 10.25 700.00 0.20 0.39 -0.19 124.83 115.73 9.10 800.00 0.20 0.42 -0.23 104.32 113.27 -8.95 900.00 0.47 0.45 0.02 94.83 108.03 -13.20 1000.00 0.24 0.53 -0.30 109.72 104.19 5.53 1100.00 0.61 0.63 -0.02 107.17 100.78 6.39 1200.00 0.46 0.66 -0.20 93.00 98.28 -5.28 1300.00 0.69 0.67 0.02 98.14 95.83 2.31 1400.00 0.69 0.68 0.02 101.24 88.92 12.32 1500.00 0.78 0.69 0.10 74.08 80.77 -6.70 1600.00 1.00 0.70 0.30 75.47 79.30 -3.83 1700.00 0.89 0.72 0.18 75.86 79.16 -3.30 1800.00 0.48 0.52 -0.04 60.76 87.77 -27.01 1900.00 0.38 0.28 0.10 64.71 98.52 -33.81 2000.00 0.08 0.19 -0.11 116.29 70.38 45.91 2100.00 0.07 0.13 -0.06 129.75 34.25 95.49 2200.00 0.13 0.20 -0.07 23.11 45.25 -22.14 2300.00 0.08 0.30 -0.22 143.13 66.21 76.92 2400.00 0.09 0.25 -0.16 19.33 100.61 -81.29 2500.00 0.24 0.18 0.06 120.36 137.99 -17.63 2600.00 0.28 0.30 -0.01 58.20 100.03 -41.83 2700.00 0.30 0.46 -0.16 50.29 46.89 3.41 2800.00 1.88 1.80 0.09 12.32 12.07 0.25 2900.00 3.89 3.81 0.08 4.17 4.27 -0.10 3000.00 6.16 6.11 0.05 8.71 8.11 0.60 3100.00 7.99 8.12 -0.12 12.14 12.56 -0.42 3200.00 10.36 10.42 , -0.06 10.96 11.10 -0.14 3300.00 13.04 13.10 -0.06 11.79 11.93 -0.14 3400.00 15.71 15.74 -0.02 12.96 13.33 -0.37 3500.00 18.39 18.50 -0.11 14.17 14.54 -0.36 SURV-Q167(OPS SUR-MA-003) 19`"Nov 03/Rev 15 Page 4 of 7 AK0514GCM151 Survey QC - RGS-CT E :ification Sheet WV/data . 3600.00 21.79 21.84 -0.05 14.79 15.09 -0.29 3700.00 24.92 24.99 -0.07 14.75 15.09 -0.34 3800.00 28.13 28.17 -0.04 14.72 15.03 -0.31 3900.00 31.35 31.35 0.00 14.22 14.66 -0.44 4000.00 34.27 34.25 0.01 14.00 14.46 -0.46 4100.00 37.50 37.50 -0.00 13.54 14.04 -0.50 4200.00 40.63 40.57 0.06 13.64 14.14 -0.50 4300.00 44.04 44.04 0.00 13.74 14.28 -0.54 4400.00 47.99 47.95 0.04 13.90 14.46 -0.56 4500.00 50.59 50.58 0.01 14.77 15.35 -0.58 4600.00 53.29 53.28 0.01 14.94 15.53 -0.60 4700.00 55.72 55.67 0.05 15.31 15.90 -0.59 4800.00 56.76 56.68 0.09 15.69 16.30 -0.61 4900.00 56.97 56.87 0.10 16.61 17.20 -0.59 5000.00 57.07 56.99 0.09 16.59 17.18 -0.59 5100.00 57.49 57.35 0.14 16.66 17.25 -0.60 5200.00 57.98 57.92 0.06 16.71 17.29 -0.59 5300.00 57.39 57.31 0.08 16.98 17.58 -0.60 5400.00 58.06 57.97 0.09 17.15 17.74 -0.60 5500.00 58.07 57.97 0.10 17.06 17.63 -0.57 5600.00 58.69 58.57 0.12 16.91 17.51 -0.59 5700.00 58.64 58.56 0.07 17.46 18.06 -0.60 5800.00 58.29 58.17 0.12 17.67 18.26 -0.59 5900.00 58.82 58.73 0.09 17.62 18.21 -0.59 6000.00 58.94 58.87 0.07 17.71 18.27 -0.57 6100.00 59.17 59.11 0.07 17.71 18.27 -0.57 6200.00 59.16 59.06 0.10 17.64 18.21 -0.57 6300.00 59.28 59.23 0.06 17.59 18.13 -0.54 6400.00 58.78 58.69 0.09 17.43 17.98 -0.55 6500.00 58.81 58.69 0.13 17.41 17.95 -0.54 6600.00 58.56 58.45 0.12 17.23 17.74 -0.51 6700.00 58.05 58.01 0.03 17.20 17.69 -0.49 6800.00 57.52 57.42 0.10 17.13 17.60 -0.47 6900.00 57.08 56.95 0.14 17.19 17.66 -0.47 7000.00 57.50 57.45 0.05 17.11 17.59 -0.47 7100.00 56.86 56.81 0.05 17.03 17.51 -0.48 7200.00 56.71 56.70 0.02 16.85 17.34 -0.49 7300.00 56.13 56.18 -0.04 16.83 17.33 -0.50 7400.00 55.77 55.78 -0.02 16.65 17.18 -0.52 7500.00 56.09 56.17 -0.08 16.38 16.88 -0.50 7600.00 55.99 56.04 -0.05 16.22 16.74 -0.51 7700.00 55.31 55.41 -0.10 16.10 16.62 -0.51 7800.00 54.88 54.91 -0.03 16.20 16.69 -0.49 7900.00 54.63 54.67 -0.04 16.16 16.62 -0.46 SURV-Q167(OPS SUR-MA-003) 19`"Nov 03/Rev 15 Page 5 of 7 AK0514GCM151 Survey QC - RGS-CT f cification Sheet WO/data • 8000.00 53.81 53.92 -0.11 16.23 16.82 -0.59 8100.00 53.15 53.26 -0.12 16.28 16.84 -0.56 8200.00 52.60 52.71 -0.11 16.53 17.08 -0.54 8300.00 51.92 52.02 -0.10 16.47 16.96 -0.49 8400.00 51.18 51.21 -0.03 16.35 16.81 -0.46 8500.00 51.06 51.24 -0.19 16.41 16.85 -0.45 8600.00 51.52 51.63 -0.11 16.60 17.02 -0.42 8700.00 51.94 52.13 -0.19 16.79 17.19 -0.40 8800.00 52.79 52.93 -0.14 17.16 17.55 -0.39 8900.00 53.34 53.49 -0.14 17.73 18.07 -0.34 9000.00 53.93 54.15 -0.21 18.26 18.61 -0.35 9100.00 53.51 53.75 -0.24 18.77 19.09 -0.32 9200.00 53.67 53.85 -0.18 19.36 19.69 -0.33 9300.00 53.52 53.72 -0.20 20.21 20.57 -0.36 9400.00 53.03 53.18 -0.15 21.29 21.62 -0.33 9500.00 52.60 52.87 -0.27 21.74 21.99 -0.25 9600.00 52.71 52.90 -0.19 21.55 21.80 -0.24 9700.00 53.45 53.72 -0.28 21.37 21.65 -0.28 9800.00 53.13 53.29 -0.16 21.63 21.92 -0.29 9900.00 53.52 53.84 -0.32 21.84 22.08 -0.25 10000.00 54.00 54.17 -0.17 22.15 22.44 -0.29 10100.00 53.88 54.14 -0.27 22.23 22.46 -0.23 10200.00 53.84 54.06 -0.22 22.55 22.78 -0.23 10300.00 53.89 54.26 -0.37 23.13 23.38 -0.25 10400.00 55.10 55.40 -0.30 23.51 23.70 -0.19 10500.00 56.48 56.80 -0.31 24.22 24.42 -0.19 10600.00 57.70 58.01 -0.31 24.85 25.07 -0.21 10700.00 59.14 59.43 -0.28 25.46 25.62 -0.16 10800.00 58.07 58.22 -0.15 26.13 26.25 -0.12 10900.00 56.12 56.28 -0.16 26.59 26.61 -0.02 11000.00 53.04 53.12 -0.07 27.82 27.98 -0.16 11100.00 51.08 51.06 0.02 30.21 30.27 -0.05 11200.00 48.36 48.40 -0.03 31.74 31.64 0.10 11300.00 47.54 47.55 -0.01 31.96 31.90 0.06 11400.00 46.99 46.99 0.01 32.41 32.27 0.13 11500.00 45.29 45.30 -0.01 33.42 33.31 0.12 11600.00 44.32 44.33 -0.01 33.95 33.77 0.18 11700.00 43.28 43.31 -0.03 35.86 35.73 0.13 11800.00 43.33 43.31 0.03 36.96 36.80 0.15 11900.00 43.98 44.00 -0.02 36.70 36.56 0.14 12000.00 55.00 55.14 -0.14 32.17 32.19 -0.02 12100.00 70.09 69.84 0.25 48.74 48.21 0.53 12200.00 62.24 62.60 -0.35 78.74 78.21 0.53 12300.00 64.61 64.28 0.33 103.65 102.68 0.97 SURV-Q167(OPS SUR-MA-003) 19th Nov 03/Rev 15 Page 6 of 7 AK0514GCM151 Survey QC - RGS-CT cification Sheet gYrOidarta 12400.00 66.47 66.47 0.01 120.76 120.05 0.71 12500.00 70.09 70.07 0.02 135.10 134.56 0.53 Average -0.0392 Napt,,lw;;Iirtiorior -0.3178 Standard Deviation 0.1378 0.3196 Tolerance for both the Average and the Standard Casing 0.3° 3 t Casing 0.5° Deviation Drillpipe 0.3° v . ti*ek• ,_ : Survey QC - RGS-CT , lysis Sheetif >e` x I SURVEY QUALITY CONTROL- DATA ANALYSIS REFERENCE SYSTEMS Grid System I I Grid Correction I 0.00 Azimuth reference: Grid/True North TRUE NORTH Vertical reference: RKB/MSL/Other RKB I If other give details I TIE ON DATA Depth 0.00 Inclination 0.00 Azimuth 0.00 I TVD I 0.00 Northings 0.00 Eastings 0.00 Latitude 70.2682 Az. Ref: Grid/True True Grid Corrected Y/N? N Description I CALIBRATION Tool Number I 1523 I Calibration Date 103 Dec 2013 OPERATING TEMPERATURE Calibration range From 49.64 To 119.93 Gyro operating range From 53.92 To 109.57 I Spec'-Within calibration range FIELD ROLL TEST (Only valid on fixed structures. When not possible input roll test data performed after return to base) Cal value Pre job offset Post job offset Abs dif.cal.post Abs dif.pre.post Spec' Accel Scale 0.000056 0.000080 0.000108 0.000108 0.000028 Cal/Post-0.00015 Mass Unbalance 6.38 -0.04 0.01 0.01 0.05 Pre/Post- 0.4°/hr INITIALISATION Depth (Approx) 3175.03 No of stns 6 Spec'- Min No. - 6 Azimuth Mean 14.00 Std deviation 0.04 Spec'-Azi SD 0.2° Inclination Mean 10.01 Std deviation 0.00 Spec'- Inc SD 0.1° Earth Horizontal Rate Mean (Abs(meas-theor)) 10.01 Std deviation 0.01 Spec'-See Q167 DRIFT TUNE Residual x gyro bias Mean -0.001 Std dev' 0.010 Spec's- Mean and SD - 0.333°/hr Residual y gyro bias Mean 0.000 Std dev' 0.003 Spec's- Mean and SD - 0.333°/hr TOOLFACE RATE Maximum toolface rate 110.45 I Spec'-400°/sec IN/OUT COMPARISON (AZI'N/A IF INC' <15° Inclination Difference Mean -0.04 Std dev' 0.14 Spec's-Casing 0.3°/Drill pipe 0.3° Azimuth Difference Mean -0.32 Std dev' 0.32 Spec's-Casing 0.5°/Drill pipe 0.75° Lateral Divergence/1000 3.73 Spec- 5.0/1000 Vertical Divergence/1000 0.47 Spec'- 2.0/1000 DEPTH CONTROL Wireline Company SCHLUMBERGER I Line type 0.345" Encoder SF I SCHLUMBERGER Max Depth (TD) 12583 CCL Corrected N Zero Depth (Rig up) RKB 2 75.02 AMSL Rezero Depth -14.4 Given pup joint depth NA Measured P3 NA Strech cor. At TD divided by TD/1000 0.800 Spec'- 1.5/1000 Dif. Between rigup and rezero depths divided by TD/1000 1.152 Spec'- 2.0/1000 Dif. Between given and meas depth divided by meas/1000 NA Spec'-2.0/1000 SURV-Q165(OPS SUR-MA-010)22n°Jan 2004/Revision 20 Page 1 of 1 AK0514GCM151 gyroidata Survey QC - RGS-CT ..eptance Sheet FIELD AND SURVEY INFORMATION Operator BP EXPLORATION (ALASKA)INC Field/ Platform WELLHEAD Well Number PRUDHOE BAY UNIT-WOA DRILLSITE:Y WELL:Y-01B Survey section From 0.00 ft. to 12583.00 ft. Date 27 May 2014 Gyrodata Job No AK0514GCM151 Gyrodata Surveyors Christopher Prince Job Objective High Accuracy Gyro Survey SURVEY PERFORMANCE In Spec' QC Parameter Yes/No/NA Possible Actions Contact Duty Engineer to discuss options: Operational temperature within Yes 1. Recalibrate tool to higher temperature specification 2. Resurvey with backup tool 3. Resurvey'Hot'section at higher speed Roll test data within specification Contact Duty Engineer to discuss options: Only valid on land/fixed installations Yes 1. Recalibrate tool and reprocess survey 2. Resurvey with backup tool Continuous initialisation within Take new initialisation, after three failures: specification Yes 1. Contact Duty Engineer or, 2. Resurvey with back up tool. Contact Duty Engineer to discuss options: Toolface rate within specification Yes Resurvey section from previous bias check Investigate and comment if effects are negligible Contact Duty Engineer to discuss options: Drift tunes within specification Yes 1. Reprocess with different software settings 2. Resurvey with backup tool Inrun/Outrun comparison within Contact Duty Engineer to discuss options. specification Yes Resurvey is usually not required if either inrun or outrun meet all other QC parameters Depth control within specification Yes Contact Duty Engineer to discuss options. Action taken: Note: Provided satisfactory action has been taken, parameters out with specification will not necessarily fail a survey. SURVEY ACCEPTED Gyrodata Representative Client's Representative SURV-Q166(OPS SUR-MA-003)13th Nov 03/Revision 12 Page 1 of 1 AK0514GCM151 Schlumberger Trans#:6954 E I V E D Drilling & Measurements MWD/LWD Log Product Delivery DATA OGLED JUN 3 2014 41 i5'i2o14 Customer: BP Exploration(Alaska) Inc. Dispatched To: MKBENDER Amer Well No: Y-10B Date Dispatched: 4-Jun-14 Job#: 13AKA0142 Dispatched By: Corine Barrera Well/ Product Hardcopy Digital Copy E-Delivery Date Final Field Data PRINTS: 5 Inch Quadrant Density Recorded Mode Log 1 _ ON CD 5 Inch TVDSS Recorded Mode Log 1 ON CD 5 Inch TVDSS Recorded Mode Log_27Jan14_133524 1 ON CD 2 Inch MD Recorded Mode Log_27Jan14_140256 1 ON CD 2 Inch MD MAD Pass Recorded Mode Log 1 a ON CD 2 Inch MD Recorded Mode Logf 1 ON CD 2 Inch TVDSS Recorded Mode Log 1 ON CD 5 Inch MD MAD Pass Recorded Mode Log _ 1 _ ON CD 5 Inch MD Recorded Mode Log 1 ON CD 5 Inch Quadrant Density MAD Pass Recorded Mode 1 ON CD SURVEY: ASP Final Survey 1 ON CD TOTAL: 11 Digital Data LAS ON CD DLIS ON CD Please sign and email a copy to: Please sign and email/fax a copy to: Judith.Smith@bp.com cbarrera2i slb.com Corine Barrera Judith Smith j/ Fax:907-561-8317 Received By: Y2>aetegl (0 d° rnrn0)m M NQNN mmQ OM m Mm .,°8b5 um P--2,7, E,N Nor ( 0)U rQmrnmrnrom0, m� ONuuummmu00v0�000 OMo000NN Nin 00 CO 10 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O M M O RR M M M M M M (O ,M M M M M M MMM M M M M M M M M M M M M M (C� J Cm mmm m ..... mmmmm ..... mmmmm m m m m m co.. 4. .0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 666066 W W 0 0 0 .44444 44444 44444 44444 40400 44400 0 Q Q 0 Q Q 004 C d^m m m M N 4,m64 N O m N 0 ‘-00N0 N 0)0 m M MN-0000 M M A N 9 O O o m r o.-m44 64,146 6m004, Q Q M m .-4664 m Q M « 111`,n N O m 0) 0)O ZO•-O m m N O m A m M e N m A N m m m m m m m m m m m m m 888 Q Q Q Q Q Q Q M M M M N N W fr?,'1, ,°cr°tA° `r°`r°cn�. n`,,,,? tr° ;.e.',. 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J N T N 0 C N 8 E c E o = U p L Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator [AKDCWellIntegrityCoordinator@bp.com] Sent: Tuesday, April 01, 2014 6:30 AM To: AK, OPS GC1 OSM; AK, OPS GC1 Field O&M TL; AK, OPS GC1 Facility OTL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Well Services Operations Team Lead; AK, D&C Wireline Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Well Pad YP; Warner, Scott; Wallace, Chris D (DOA) Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Regg, James B (DOA) Subject: UNDER EVALUATION: Injector Y-10B (PTD#2120210) Pre-Produce Injector All, Injector Y-10B(PTD#2120210) is a newly sidetracked well completed on 01/31/2014. The well is to be pre-produced until rates stabilize and water cut gets around 5-10%to clean up injection zone, establish un-fractured production rates, and obtain an 8 hour test. The well is reclassified as Under Evaluation and must be shut in after the flowback is complete. Injection is not permitted. If the produced fluids are sent to production facilities for sale then the production must be allocated to the well on the monthly production report. Please ensure that any allocation is sent to the Well Integrity Coordinator, in order to be passed on to the AOGCC. Please call with any questions. Thank You, Shane Wills filling in for Jack Disbrow BP Alaska - Well Integrity Coordinator GVVGlobal Wells Organizatior WIC Office: 907.659.5102 WIC Email: AKDCWeIIIntegrityCoordinator@BP.com 1 Wallace, Chris D (DOA) From: Wallace, Chris D (DOA) Sent: Tuesday, March 25, 2014 4:00 PM To: 'AK, D&C Well Integrity Coordinator' Subject: RE: Flowback of Injector Y-10B (PTD#2120210) Jack, Approved. As discussed for these small volumes and durations we can accommodate that without the Application for Sundry Approvals (10-403) converting the well from Injector to Producer and then back to injector. If the flowback is to go to production facilities for sale then the production (oil/water/gas) needs to be allocated to the well on the monthly production report and we will enter it. Thanks and Regards, Chris Wallace Sr. Petroleum Engineer Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage,AK 99501 (907)793-1250(phone) (907) 276-7542(fax) chris.wallace@alaska.gov From: AK, D&C Well Integrity Coordinator [mailto:AKDCWelllntegrityCoordinatorObp.com] Sent: Tuesday, March 25, 2014 3:07 PM To: Wallace, Chris D (DOA) Subject: Flowback of Injector Y-10B (PTD #2120210) Chris, Injector Y-10B(PTD#2120210)was recently sidetracked. The sidetrack was completed on 01/31/2014. BP would like to pre-produce the well until rates stabilize and water cut gets around 5-10%to clean up injection zone, establish un- fractured production rates, and obtain an 8 hour test. The estimated time to pre produce the well is approximately 5-7 days. The preproduction is not to cure the swell packers as I originally told you over the phone. I apologize for the confusion. Please call with any questions. Thank you, Jack Disbrow BP Alaska-Well Integrity Coordinator GVVGlo9bal Wells Organization Office: 907.659.5102 WIC Email:AKDCWelilntegrityCoordinator(o)bp.com 1 RECEIVED ED STATE OF ALASKA FEB 2 8 2014 ALASr., OIL AND GAS CONSERVATION CO....AISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOhOGCC la. Well Status: 0 Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class 20AAC 25.105 20AAC 25.110 0 Exploratory 0 Stratigraphic 0 GINJ 0 WINJ ®WAG 0 WDSPL 0 Other No.of Completions One' 0 Development'®Service' 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. 1/31/2014'• 212-021' 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 12/18/2013• 50-029-20587-02-0o - 4a. Location of Well(Governmental Section): 7. Date T.D.Reached: , 14. Well Name and Number: Surface: 1/21/2014 • PBU Y-10B • 1410'FNL,205' FEL, Sec. 33,T11 N, R13E, UM ' 8. KB(ft above MSL): 15.Field/Pool Pool(s)of Productive Horizon: ) 90.54'' ( ) 4759"FNL,2139'FEL, Sec.33,T11 N, R13E, UM GL(ft above MSL): 50.09' Prudhoe Bay/Prudhoe Bay • Total Depth: 9.Plug Back Depth(MD+TVD) 4553'FNL,4305'FWL, Sec.34,T11 N, R13E, UM 18128' 8876' 4b. Location of Well(State Base Plane Coordinates,NAD: 10.Total Depth(MD+TVD) 16. Property Designation: Surface: x- 644611 • y- 5948841 ' Zone- ASP4 '18155' 8876' ' ADL 028287 TPI: x- 642749 y- 5945457 Zone- ASP4 11.SSSV Depth(MD+TVD) 17. Land Use Permit: Total Depth:x- 649187 y- 5945787 Zone- ASP4 None 18. Directional Surve Y ®Yes ❑No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900' (Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD: GR/RES, SONIC, GR/RES/DEN/NEU/Caliper . 2781' 2781' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT CASING WT.PER FT. GRADE Top BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20"x 30" Insulated Conductor Surface 110' Surface 110' 36" 8 cu vds Concrete 13-3/8" 72# L-80 Surface 2709' Surface 2709' 17-1/2" 3720 cu ft Permafrost II 9-5/8" 47# L-80 Surface 2781' Surface 2781' 12-1/4" 1270 cu ft Class'G', 130 cu ft PF'C' 7" 26# L-80 2621' 11533' 2621' 8897' 8-1/2" 242 sx Class'G' 4-1/2" 13.5# 13Cr80 11373' 18154' 8775' 8876' 6-1/8" Uncemented Sliding Sleeves w/Swell Packers 24. Open to production or injection? ®Yes ❑No . 25. TUBING RECORD If Yes, list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ND (MD+TVD of Top&Bottom;Perforation Size and Number): ) 4-1/2"Sliding Sleeves w/Swell Packers 4-1/2", 12.6#, 13Cr85 11381' 11257'/8686' COMPLETION 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 12906' 8899' .,11-_La4 WAS HYDRAULIC FRACTURING USED DURING COMPLETION?0 Yes 0 No 13122' 8896' 15055' 8890' DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 15632' 8886' , 2200' Freeze Protect w/156 Bbls Diesel 17373' 8875' 27. PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc February 15,2014 Gas Injection Date of Test Hours Tested Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period ♦ 1297 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 100 220 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? 0 Yes 0 No , Sidewall Core(s)Acquired? 0 Yes 0 No , If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. ` 1 None RBDMS APR 16 21 Form 10-407 Revised 10/2012 CONTINUED ON REVERSE f Submit Original Only VI- r 4/21- 114- tiA.01 - - y.z.i4rct C/ 29. GEOLOGIC MARKERS(List all formations and makers encounter 30. FORMATION TESTS NAME I ND Well Tested? m ®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. Ugnu 4180' 4076' West Sak 6825' 5382' None Coleville Mudstone 7640' 5767' HRZ 9627' 7395' Base of HRZ/LCU 9907' 7631' Kingak 9954' 7670' Sag River 11539' 8902' Shublik A 11565' 8921' Shublik B 11614' 8956' Shublik C 11645' 8975' Sadlerochit-Zone 4B 11692' 9002' • Shublik C(Invert) 12172' 8990' Shublik B 12328' 8959' Shublik A 12417' 8943' Sag River 12786' 8903' Shublik A(Revert) 13473' 8894' Shublik B 13711' 8922' Shublik A(Invert) 14140' 8934' Sag River 14818' 8900' Shublik A(Revert) 15253' 8896' Sag River(Invert) 15369' 8896' Shublik A(Revert) 15885' 8886' Sag River(Invert) 16723' 8881' Shublik A(Revert) 16764' 8879' Sag River(Invert) 17136' 8878' Formation at Total Depth: Sag River(From Base) 17136' 8878' 31.List of Attachment: Summary of Daily Drilling Reports,Well Schematic Diagram, Surveys, Cement Report 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Garret Stau er,564-4242 Email: Garret.Staudinger@bp.com Printed Name: Joe Lastu a Title: Drilling Technologist s ' / Signature: Phone 564-4091 Date: 24Hd/4k INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 10/2012 Submit Original Only II.LL= (IW WELL1-EAD= GRAY f 1 0E3 SAR 'OTES: WELL ANGLE>70'@ 11767'. ACTUATOR= BAKER C 44/2 -41ROME TBG&LNR. ***H2S READINGS INTIAL KB ELE 85.7' AVERAGE 125 ppm WHEN ON MI***WELL BE OLE/= 51,59' lb 0 REQUIRES SSSV WHEN ON MI*** OP= -2700' .._ _ Max Angle= 107"@ 11988' 4, 1 2116' -14-1/2-HES X NP,ID=3.813" * • Datum MD= 11524' r Datum TVD= 8800'SS 4r. -4-H 2574' -19-5/8-DV FKR k 4:, 20'CONDUCTOR ? ----------:--1 2597' -4-1/2'LIM VALVE(2 CONTROL LINES) ' C 13-3/8"CSG,72/1,L-80,t)=12.347" - 2709' ' -,..„4 2621' -19-5/8°X 7"BKR ZXPN LTP w/TEBK,ID=6.190' 11*-- 2636' -19-5/8'X 7"BKR FLEXLOCK LW FiGR,ID=6.180" 9-5'8"CSG,47#,L-80 BTC,ID=8.681' H 2781' -,,,......, _..... 9-5/8"BKR WIPSTOCK(12/16113) -I 2781' ------' ,-, MLLOUT VVINDOW(Y-108)2781'-2798' 9-5/8'EZSV(12/16/13) H 2803' V * 1 GAS LIFT MANDRaS Minimum ID = 3.813" @ 2116' ST ND ND DEV TYPE VLV LATCH FORT DATE 4-112" HES X NIPPLE ,... ... 4 3711 3680 26 KBG-4-5 DMY BK 0 02/16/14 65'@ 4760' MD 3 7849 5897 47 KBG-4-5 DMY BK 0 01/29/14 2 9792 7535 33 KBG-4-5 DMY BK 0 01/29/14 TOP OF CEMENT(12/31/13) -1 9635' t .: 1 11194 8637 39 KBG-4-5 DMY BK 0 01/29/14 . 11228'J-4-1/2'HES X NP,ID=3.813' I. * .4 .,i• 11257' -7'X 4-1/2"HES TNT PKR,0=3.856" 4: * ....: * ..,. k 11293' -4-1/2'HES X NP,ID=1813" ,* * * * * K, 11363' -14-1/2* IM X NP,D 3.813' .t ,..,.7 ..7.. ,.: 11373' --17'X 5'BKR HRD-EZXPN LTPw/TEBK,ID=4340' 4' * 4-1/2"TBG, 12 6#,13CR-80 VAM TOP, -I11381' l'..- * r 11381' 1-4-1/2-VVLEG,ID=4.00 0152 bpf,ID=3.958' ,* I -BAD Tr NOT LOGGED •k . 4 0 \1. 11395' -17'X 5'BKR FLEX-LOCK HGR,ID=4.25' e . , 7"LNR,26#,L-80 VAM TOP HC, --I 11533' 1 it Li 11405' I 5".)--n42"X0 BUSHING,ID=3.91' .0383 bpf,ID=6.276' 40' 4-112'I-ES SWELL PACKERS lai 105az 10.5 ppg NO DEPTH I) ICI CS 11 11612 3,958' 1 1 "4-1/2"FRAC PORT 1.1.74 10 12779 3.958' 1,14 SEAT SZ. DEPTH 0/C DATE ID 9 12995 3.958" I I 6 12906 C 01/27/14 2.750' 1.7.4 8 13211 3.958" 5 13122 C 01/27/14 2.625" oz. oirli 7 14887 3.958" i i 4 15055 C 01/27/14 2.500" 6 15143 3.958" wz.4 ig....-4 3 15632 C 01/27/14 2.375' 5 15426 3.958" lc. pa. 2 17373 C 01/27/14 2.250' 4 15782 3.958" I I 1 17844 C 01/27/14 DEH 3 17206 3,958" rm. 101 0=OPEN C=CLOS13D 2 17483 3.958' I iii 1i11,1 1 17912 3958' PBTD --I 18127' 1 1 17470' -4-1/2-BKR SFIPT TOOL VERFICATION SUB,ID=3 87' co Qs 4-1/2'LM, 13.5#,13CR-80 HYD 521, - 18129' 1 1 sz.„ 414 ID=3.920' .0150 bpi, 1 18107' -4-1/2"TOE CIRCULATING SUB.ID=1 00" ' 4-3/4-7/8 2 STAGE AD MUD MOTOR AND 6 125' H 18154' - XR20 BIT DATE REV BY CONFANTS DATE REV BY CONVENTS FRUDHOE BAY UNIT 07122/81 INITIAL COMPLETION 02/18/14 SWC/JN)GLV C/0(02/16/14) WELL: Y-10B 11105/65 0-14 RWO 02/18/14 GS/JMD ADOTNL HO CORRECTIONS PEEWIT No:'2120210 1 02/22/05 NORDIC 1 CTD SIDETRACK(Y-10A) 02/25/14 GS/JMD FINAL ODE APPROVAL API No', 50-029-20587-02 1 08/14/07 D-14 RWO , SEC 33,T11N,R13E, 1410'FNL 8 205'EH_ 1 01/31/14 DOYON25 SIDETRACK(Y-10B) 02/05/14 JMD CRLG HO CORRECTIONS _ BP Exploration(Alaska) _ 4 BP AMERICA LOT / FIT Summary Well Name: Y-10B Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) _ (ppg) 12/18/13 LOT 2,798.00 2,797.90 9.50 665.00 2,035.79 14.01 01/02/14 FIT 11,535.00 8,895.00 8.60 1,325.00 5,298.88 11.47 01/03/14 FIT 11,535.00 8,899.00 8.60 1,325.00 5,300.37 11.47 01/03/14 FIT 11,555.00 8,914.00 8.60 1,325.00 5,307.37 11.46 Page 1 of 1 North America-ALASKA-BP Page 1 of 54 Operation Summary Report Common Well Name:V-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth I Phase I Description of Operations .(hr) (usft) 12/10/2013 12:00 - 18:00 6.00 MOB P I PRE RIG DOWN OPERATIONS -BREAK MODULES AND RE LOCATE IN ORDER TO MOVE -TOOL SERVICES MOBILIZING RIG MATS ALONG RIG MOVE ROUTE 18:00 - 00:00 6.00 MOB P PRE SKID RIG FLOOR&LOWER DERRICK -SPOT MODULES IN PLACE FOR MOVE -PUMP&POWER MODULES OFF P-PAD AT 120:00,ARRIVED ON Y-PAD AROUND MIDNIGHT. - 12/11/2013 00:00 - 06:00 6.00 MOB P PRE MOBILIZE PIT AND PIPE SHED MODULES F/ P-PAD TO Y-PAD -SPOT MODULES ON Y-PAD,WELL 10B -TOOL SERVICES MOBILIZING RIG MATS ALONG RIG MOVE ROUTE ON Y-PAD ACCESS -RIG CREW WORKING ON STOMPER CYLINDER ON SUB MODULE 06:00 - 18:00 12.00 MOB P PRE MOBILIZE CASING AND SUB MODULES -ALL SIX MODULES ON LOCATION AT 18:00 18:00 00:00 6.00 MOB P PRE SPOT MODULES IN PLACE -TIGHT LOCATION MAKING FOR EXTRA TIME SPOTTING MODULES IN PLACE. 12/12/2013 00:00 - 04:30 4.50 MOB_ P PRE •SPOT RIG SUB OVER WELL AND SHIM,WALK PIPE SHED IN POSITION UNDER SUB STAGE OTHER MODULES IN PLACE BEGIN RIGGING UP FOR DE-COMPLETE& DRILLING OPERATIONS 04:30 - 09:00 4.50 MOB N RREP PRE (CODE 8)-RIG REPAIR HEAT EXCHANGE FAILURE ON MAIN HPU FOR SUB -SPILL CLEAN UP OPERATIONS I **(04:30)-300 GAL HYDRAULIC OIL SPILL. -DUE TO MECHANICAL FAILURE OF HEAT EXCHANGE COOLER IN RIG SUB HYDRAULIC UNIT. ALL HYDRAULIC FLUID CONTAINED WITHIN SECONDARY CONTAINMENT. NOTIFICATIONS MADE.CLEAN UP IN PROGRESS. TRACTION REPORT#: 2013-IR-4595685 09:00 - 17:30 8.50 MOB P PRE SPOTTING RIG SUB AND PIPE MODULES. -PIN IN PLACE "(17:00) -8 GAL MOTOR OIL LEAK ON P-PAD. TWO DRUMS OF MOTOR OIL WERE PUNCTURED BY RIG LOADER WHILE LOADING ON TO THE BED TRUCK.OIL LEAKED ONTO THE BED OF THE TRUCK(ON P-PAD)WITH NO OIL HITTING THE PAD.ALL NOTIFICATIONS WERE MADE AND CLEAN UP PROCESS STARTED. TRACTION REPORT#:2013-IR-4596192 Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 2 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:30 - 23:30 6.00 MOB N RREP PRE (CODE 8)-RIG REPAIR -REMOVING HYDRAULIC RAM F/C-SECTION OF DERRICK -PJSM WITH CH2 CRANE CREW,DDI,AND BP REP LIFTING PERMIT AND HAZARD ASSESSMENT CONDUCTED.CH2 LIFT PLAN USED -DISCONNECT HYDRAULIC LINES AND CAP SAME,CUT RAM PINS W/SAWS ALL -REMOVED C-SECTION HYDRAULIC RAM. 23:30 - 00:00 0.50 MOB P PRE CONTINUE RIG UP -WALKING REMAINDER OF RIG MODULES IN PLACE TO BE CONNECTED. 12/13/2013 00:00 - 03:00 3.00 RIGU P PRE RIG UP ON Y-10B -POSITION PIPE SHED PJSM,RAISE DERRICK AND SKID FLOOR 03:00 - 12:00 9.00 RIGU P PRE RIG UP OPERATIONS: -WALK PUMP AND POWER COMPLEXES INTO POSITION -WALK CASING SHED IN PLACE -SPOT REMAINING COMPLEXES IN PLACE -LOWER&PIN C-SECTION -RAISE UPPER,LOWER AND MIDDLE CATTLE CHUTE SECTIONS&PIN IN PLACE -HOOK UP STEAM,WATER&AIR LINES -HOOK UP PUMP PITS&SUB INTER-CONNECTS,HOOK UP ALL ELECTRIC INTER-CONNECTS -INSTALL HAND RAILS AND STEPS AROUND RIG -INSTALL STEAM TRAPS -INSTALL GAI-TRONICS 12:00 - 18:00 6.00 RIGU P PRE RIG UP OPERATIONS: -SPOOL UP DRILL LINE ON DRAWWORKS CONNECT STAND PIPE AND CEMENT LINES -UNPIN TOP DRIVE,BRIDLE UP&SCOPE DERRICK RIG ACCEPT @ 18:00 18:00 - 20:00 2.00 RIGU P PRE RIG UP AND TEST TWC. -ABOVE:250 PSI LOW&4000 PSI HIGH FOR 5 CHARTED MIN -BELOW:250 PSI LOW&3500 PSI HIGH FOR 5 CHARTED MIN. -ALL TEST PASSED BP CRITERIA FOR TESTING TWC/BPV'S -PRESSURE TEST PERFORMED W/DIESEL -RD&BLOW DOWN TEST LINES 20:00 - 20:30 0.50 RIGU P PRE RIG EVACUATION DRILL AAR: RIG ABANDONMENT WAS CALLED OVER THE GAI-TRONICS ALL PARTIES ON LOCATION MUSTERED TO THE CORRECT MUSTER POINT&WERE ACCOUNTED FOR. REPEATED ANNOUNCEMENTS WERE MADE OVER THE HARMONY TO ENSURE THIRD PARTY PEOPLE WERE NOTIFIED -AN INSPECTION CREW WORKING UNDER A SIM-OPS CARD MUSTERED WHEN THEY HEARD THE DRILL. Printed 2/10/2014 10:09:O5AM North America-ALASKA-BP Page 3of54' Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) _ 20:30 - 23:30 3.00 RIGU P PRE NIPPLE DOWN TREE&ADAPTER FLANGE -PJSM FOR ND -BREAK FREE AND SECURE TREE&FLANGE FOR TRANSPORT -CAMERON INSPECTED THE 4-1/2"MCA LIFT THREADS -MADE UP THE MCA X 4-1/2"IF XO TO THE TBG HANGER-16-3/4 TURNS -FUNCTION TESTED THE LDS-5.0"IN,5.5" TO 5.75"OUT BARRIERS FOR BREAKING CONTAINMENT: CEMENT PLUG AT 7,622'MD,TESTED TWC 23:30 - 00:00 0.50 RIGD P PRE PRE-SPUD MEETING WITH BOTH RIG CREWS -SLB MWD,GEO&MI MUD MAN 12/14/2013 00:00 - 08:00 8.00 RIGU P PRE NIPPLE UP BOPE NIPPLE UP 11"X 13-5/8"ADAPTER SPOOL N/U 13 5/8"BOP STACK. -INSTALL DRIP PAN&SEAL -INSTALL CHOKE HOSE&KILL HOSE -INSTALL FLOW RISER, -BLEED OFF IA F/100 PSI TO 0 PSI -NU PRESSURE TEST EQUIPMENT 08:00 - 16:30 8.50 RIGU P PRE TEST BOPE -TEST BOPE TO 250 PSI LOW,4,000 PSI HIGH FOR 5 MINUTES EACH -TEST(2)2-7/8"BY 5-1/2" VBR'S WITH 4-1/2" &5"TEST JOINTS -TEST ANNULAR TO 250 PSI LOW AND 3500 PSI HIGH WITH 4"TEST JOINT -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS AOGCC GIVEN 24 HR NOTICE OF BOP TESTING. -TEST WITNESS WAIVED BY AOGCC REP JEFF JONES RD TEST EQUIPMENT MU 5"SHEAR JOINT 16:30 - 20:00 3.50 PULL P DECOMP RIG UP DUTCH RISER AND LUBRICATOR, -CLOSE ANNULAR ON DUTCH RISER AND TEST SAME TO 250 PSI LOW 5 MIN/4000 PSI HIGH 5 MIN.-GOOD TEST. -PULL TWC RD LUBRICATOR &DUTCH RISER Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 4 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:00 - 22:00 2.00 PULL P DECOMP CIRCULATE OUT FREEZE PROTECT -RU AND CIRCULATE OUT DIESEL FREEZE PROTECT USING 100 DEG 8.5 PPG SEAWATER. CIRCULATING DOWN THE KILL LINE AND TAKING RETURNS OUT THE IA. ALL RETURNS TAKEN TO 500 BBL TIGER TANK. -STAGE PUMPS UP TO 7 BPM(296)GPM, 280-400 PSI -ICP-280 PSI,FCP-400 PSI RECOVERED ROUGHLY-170 BBLS OF DIESEL,DIESEL SENT TO HYDROCARBON RECYCLE AT GC-2 -SHUT DOWN AND MONITOR THE WELL FOR 10 MIN-WELL STATIC CHANGE OUT SAVER SUB TO 4-1/2"IF DURING CIRCULATION 22:00 - 00 00 2.00 PULL P DECOMP PULL TUBING HANGER -MAKE UP MCA X 4-1/2"IF XO TO 5"DP -RIH AND MAKE UP TO HANGER WITH 16-3/4 TURNS -CAMERON REP TO BOLDS PULL HANGER OFF SEAT WITH 71 K -PU 2'AND MONITOR WELL FOR 10 MIN- WELL STATIC -PULL HANGER TO THE RIG FLOOR AND LAY DOWN PUW-66K • 12/15/2013 00'00 - 01'00 1.00 PULL P DECOMP FINISH LAYING DOWN TUBING HANGER -C/O SLIP INSERTS -BREAK OUT MCA X 4-1/2"(XO) 01:00 - 03:00 2.00 PULL P DECOMP CIRCULATE SURFACE TO SURFACE -CLOSE ANNULAR PREVENTER AND • CIRCULATE THROUGH THE CHOKE • -PUMP 40 BBLS OF DEEP CLEAN PILL -FOLLOWED BY 240 BBLS OF 8.5 PPG SEAWATER -250 GPM,125 PSI, -SHUT DOWN MONITOR WELL-WELL STATIC CONNECTED OA LINE TO THE TIGER TANK TO MONITOR PRIOR TO PACK OFF C/O.BLED PRESSURE F/150 PSI TO 0 PSI. 03:00 - 08:30 5.50 PULL P DECOMP PULL AND LAY DOWN 4-1/2",12.6#,L-80 TCII TUBING -LAY DOWN TUBING FROM 3,507' -MARKED EACH JOINT WITH#AND WELL -TOTAL JTS LAID DOWN=85+CUT-JNT= (5.15') -LD ONE X-NIPPLE ASSEMBLY -MONITORING DISPLACEMENT ON THE TRIP TANK 08:30 - 09:00 0.50 CLEAN P DECOMP CLEAN&CLEAR RIG FLOOR -RD 4-1/2"HANDLING EQUIPMENT TRANSFER TUBING OUT OF PIPE SHED AND LOAD CLEAN OUT BHA 09:00 - 10:00 1.00 CLEAN P DECOMP INSTALL WEAR BUSHING -ID=8-7/8",OD 15-1/4" -MU 5"SHEAR JOINT • Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 5 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 10:00 - 15:00 5.00 CLEAN N HMAN 0.00 DECOMP RECOVER RUBBER HOLE COVER FROM INSIDE THE BOP STACK -HOLE COVER FELL IN BOP STACK WHILE ATTEMPTING TO RELEASE FROM WEAR BUSHING. -ATTEMPT TO PULL WEAR BUSHING AND HOLE COVER SLIPPED BESIDE. -SCREW INTO JOINT WITH TOP DRIVE AND SET DOWN TO FREE WEAR BUSHING AND RUNNING TOOL. -HOLE COVER TORE IN(3)PIECES. -FAB TOOLS WITH TO RECOVER PIECES. (HOOK,SPEAR AND SCREW). -RECOVERY MADE USING TOOLS ATTACHED TO CONDUIT ROD. -SUCCESSFULLY RECOVERED ALL 3 PIECES OF HOLE COVER. "(11:30)10 GAL LEAK-CH2 SUPER SUCKER LEAK.9 GAL IN SECONDARY CONTAINMENT AND 1 GAL OF DEEP CLEAN LEAKED TO THE GROUND.CH2 DISPATCH CALLED SRT AND INITIATED A TRACTION REPORT.CLEAN UP _WAS HANDLED BY SRT 15:00 - 17:00 2.00 CLEAN P DECOMP PULL AND INSPECT WEAR BUSHING AND WEAR BUSHING RUNNING TOOL. -SET WEAR BUSHING&RILDS -ID=8-7/8",OD 15-1/4" -INSTALL STRIP 0 MATIC DP WIPER SYSTEM 17:00 - 20:30 3.50 CLEAN P DECOMP PU/MU BAKER CLEAN OUT BHA TO 880'MD PER BAKER REP DIRECTION 8-1/2"BIT,LOWER MILL,(2)WATERMELON MILLS,SUB,(2)BOOT BASKETS,BUMPER SUB,(9)DC'S,(18)5"HWDP -MONITOR DISP VIA THE TRIP TANK 20:30 - 00:00 3.50 CLEAN P DECOMP RIH WITH 9-5/8"CLEAN OUT ASSEMBLY -RIH ON 5"SINGLES FROM THE CASING SHED F/880'MD TO 2,730'- -MONITORING TRIP VIA THE TRIP TANK. 12/16/2013 00:00 - 02:00 2.00 CLEAN P WEXIT RIH WITH 9-5/8"CLEAN OUT ASSEMBLY -RIH ON 5"SINGLES FROM THE CASING SHED F/2,730'MD TO THE TOP OF THE TUBING STUB AT 3,516'MD -PUW-142K,SOW-146K -WORKED MILLS 3 X F/2,756'TO 2,816'-NO ROTATION -MONITORING TRIP VIA THE TRIP TANK. 8.5 PPG SEAWATER 02:00 - 03:00 1.00 CASING P WEXIT PUMP 30 BBL HIGH VIS SWEEP -648 GPM,1345 PSI,40%FLOW OUT -CIRCULATED UNTIL RETURNS CLEANED UP, 1.5 WELLBORE VOLUMES -A FEW SMALL PIECES OF SCALE RETURNED WITH THE SWEEP MONITOR WELL 10 MIN PRIOR TO PULLING OFF BOTTOM-WELL STATIC -8.5 PPG SEAWATER Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 6 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay ' Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. _ UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 07:00 4.00 CLEAN P WEXIT POOH RACKING BACK WITH 9-5/8"CLEAN OUT BHA FROM 3,516'MD TO 880'MD -MONITOR DISPLACEMENT VIA THE TRIP TANK MONITOR WELL PRIOR TO PULLING BHA 1 THROUGH THE BHA LD BHA FROM 880'MD TO SURFACE 07:00 - 07:30 0.50 CLEAN P WEXIT !CLEAN AND CLEAR RIG FLOOR LD BAKER BOOT BASKETS,BUMPER SUB, &XO'S DOWN THE BEAVER SLIDE -SPOT SLB ELINE TRUCKS IN PLACE 07:30 - 08:00 0.50 EVAL P WEXIT RU SLB E-LINE UNIT -RU SHEAVES,LINE AND HALLIBURTON EZSV 08:00 - 13:30 5.50 EVAL P WEXIT RIH WITH 9-5/8"EZSV/GR/CCL -RIH ON E-LINE WITH AIR LINE WIPER -MONITORING DISPLACEMENT ON THE TRIP TANK ,-MAKE CORRELATION LOG PASS,CONFIRM WITH GEO FOR CORRECT SETTING DEPTH. � �LOCATE CLOSEST COLLAR TO KOP IN THE SV4-2,809' -SET EZSV 5'ABOVE COLLAR AT 2,809', -PLACING BOTTYOM OF EZSV AT 2,804'MD -TOP OF EZSV AT 2,801'MD(WLM) -POOH WITH E-LINE 13:30 - 15:00 1.50 CLEAN P DECOMP TEST EZSV AND THE 9-5/8"CASING -CLOSE BLIND SHEAR RAMS -PRESSURE TEST 250 PSI LOW 5 MIN,4000 PSI HIGH 30 MIN -ALL TESTS CHARTED -NOTIFY AND SEND MIT CRITERIA CALCULATOR SHEET TO WTL FOR APPROVAL -TEST APPROVED BY BP WTL JIM WILLINGHAM 15:00 - 15:30 0.50 CLEAN P DECOMP RIG DOWN SLB E-LINE -RD TEST EQPT 15:30 - 17:30 2.00 CLEAN P DECOMP PJSM -PU BHA,DDI,BAKER,BP -MU WHIPSTOCK,ANCHOR&MILLING ,ASEMBLY BHA AS FOLLOWS: TRIP ANCHOR,WHIPSTOCK,STARTER MILL, (3)WATERMELLON MILLS,HWDP,FLOAT SUB, MWD,(9)6-1/2"DC'S,(18)HWDP,5"DP TOTAL BAH LENGTH:918.63 _ 1730 - 20:30 3.00 STWHIP P WEXIT RIH WITH WHIPSTOCK MILLING ASSEMBLY ON 5"DP STANDS FROM THE DERRICK 60'/MIN -SLOWLY IN AND OUT OF THE SLIPS -RIH ON ELEVATORS TO 2,717 MD 84'ABOVE THE EZSV -MONITORING DISPLACEMENT VIA THE TRIP TANK 20:30 - 22:00 1.50 STWHIP P WEXIT RU GYRO DATA GYRO ON HALLIBURTON 'E-LINE -RU SHEIVES AND LINE WIPER 22:00 - 23:00 1.00 STWHIP P WEXIT RIH ON E-LINE WITH GYRO TO 2,717' -ORIENT WHIPSTOCK USING GYRO SEATED IN UBHO -ORIENT TO 116 DEG AZIMUTH-SLB DIRECTIONAL PLAN Printed 2/10/2014 10:09 O5AM North America-ALASKA-BP Page 7 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/10/2013 End Date:1/26/2014 'X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (usft) 23:00 - 23:30 0.50 STWHIP P WEXIT SET WHIPSTOCK ANCHOR -RIH FROM 2,717'MD TAG TOP OF EZSV AT 2,803'MD(DPM) -PUW-128K,SOW-136 -SET DOWN 19K AND SET TRIP ANCHOR I-PICKED UP TO 20K OVER STRING WEIGHT I TO VERIFY TRIP ANCHOR SET -SET DOWN WITH 48K DOWN WEIGHT TO SHEAR OFF WHIPSTOCK SLIDE -GOOD SET 23:30 - 00:00 0.50 DI-IB P WEXIT PJSM FOR PU AND SETTING THE RTTS STORM PACKER -POOH TWO STANDS F/2,803'TO 2622' -RIH TO 2,717'AND SET RTTS PER HALLIBURTON REP DIRECTION -RTTS SET-102'BELOW WELLHEAD 12/17/2013 00:00 - 00:30 0.50 DHB P WEXIT PRESSURE TEST RTTS STORM PACKER -PRESSURE TEST TO 250 PSI LOW AND 2000 PSI HIGH FOR 5 CHARTED MIN BOTH TESTS GOOD 00:30 - 01:00 0.50 BOPSUR P WEXIT !PU 5"DP JOINT AND PULL WEAR BUSHING SUCK OUT STACK,PREP FOR ND OF RISER AND BELL NIPPLE 01:00 - 04:00 3.00 BOPSUR P WEXIT ND BOPE AND SET BACK -PJSM FOR ND BOPE PULL AND SET BACK HIGH PRESSURE RISER -BREAK AND SET BACK TUBING SPOOL. -BARRIERS IN PLACE FOR ND-CMT PLUG 7,622',RTTS STORM PACKER 04.00 - 07:00 3.00 WHSUR P DECOMP CHANGE OUT MANDREL HANGER NECK SEAL -PJSM FOR CHANGE OUT OF NECK SEALS -CHANGE OUT NECK SEALS PER CAMERON PROCEDURE AND INSPECT TUBING SPOOL- OK -MU SPOOL TO CASING HEAD -LOWER RISER OVER TUBING SPOOL TO ENGAGE THE NECK SEALS -PU RISER AND SET BACK,TORQUE TUBING SPOOL TO CASING HEAD 07:00 - 07:30 0.50 WHSUR P DECOMP PRESSURE TEST THE 9-5/8"HANGER UPPER NECK SEALS -250 PSI LOW 5 MIN,3500 PSI HIGH 5 MIN ALL TESTS CHARTED-GOOD 07.30 - 10:00 2.50 BOPSUR P DECOMP NU BOPE -INSTALL FLOW BOX,DP WNPER,FLOW LINE, FLOW NIPPLE&HOLE FILL LINE 10:00 - 11:00 1.00 BOPSUR P DECOMP PRESSURE TEST THE BREAKS IN THE BOPE -INSTALL TEST PLUG,FILL STACK AND CLOSE BLINDS -250 PSI LOW,4000 PSI,5/5 CHARTED- GOOD TEST -BLOW DOWN CHOKE AND KILL LINES 11.00 - 11-30 0.50 DHB P DECOMP PULL TEST PLUG INSTALL WEAR RING,ID-8.875",OD=13.5", LENGTH=15" Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 8 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11:30 - 12:30 1.00 DHB P DECOMP PULL RTTS STORM PACKER -RIH WITH RTTS STORM PACKER RETRIEVAL TOOL ON 5"DP TO PULL RTTS -RIH TO 103'&MU TO RTTS -POOH WITH RTTS&LD RUN BACK IN THE HOLE AND TAG TOP OF WHIP STOCK-2,781'MD 12:30 - 13:30 1.00 DISPL P WEXIT DISPLACE WELL TO 9.5 PPG LSND -PULL UP TO 2,778'MD -PUW-117 K,SOW-130 K -PUMP 45 BBLS OF WATER AT 190 GPM,106 PSI -PUMP 50 BBLS OF HI-VIS SPACER AT 190 GPM,100 PSI -CONTINUE DISPLACING WELL UNTIL 9.5 PPG LSND IN/OUT 500 GPM,100 PSI, 13:30 - 23:00 9.50 STMILL P WEXIT MILL WINDOWAS PER BAKER REP F/2,781' TO 2,815'.(TOW 2,781',BOW 2,798') -400-450 GPM,400-500 PSI,2-10K WOB -80-90 RPM, TQ 3-8 K,MW-9.5 PPG 1 PUW-117K,SOW-130K,ROT-127K TOW=2,781'MD,MOW=2,790'MD,BOW= 2,798'MD 305 LBS OF METAL SHAVINGS RECOVERED 23:00 - 23:30 0.50 STMILL P WEXIT BACK REAM WINDOW -WORK MILLS PAST THE WINDOW X 2 W/ ROTATION AND PUMPS -110 RPM,450 GPM,440 PSI -WORKED PAST WINDOW W/NO ROTATION AND PUMPS ON X 2 -110 RPM,450 GPM,450 PSI -WORKED PAST WINDOW WITH NO PUMPS AND NO ROTATE X 2 23:30 - 00:00 0.50 STMILL P WEXIT PUMP A SUPER SWEEP PILL AND CIRCULATE HOLE CLEAN -500 GPM,910 PSI,20 RPM,1-2K TQ, -TOTAL PUMPED: 1-1/2 BOTTOMS UP -MINIMAL CUTTINGS RETURNED FROM SWEEP 12/18/2013 00:00 - 01:30 1.50 STMILL P WEXIT POOH TO 2,726'MD. R/U TEST EQUIPMENT FOR LOT 01:30 - 03:30 2.00 STMILL P WEXIT RIG UP AND PERFORM LOT -MUD WEIGHT:9.5 PPG,-TVD=2,797',MD= 2,798' -PUMPED 5.5 BBLS,BLEED BACK 1.5 BBLS -LOT EMW=14.00 PPG(655 PSI SURFACE PRESSURE) -LOT APPROVED BY WTL MONITOR WELL FOR 10 MIN-STATIC -R/D TEST EQUIPMENT 03:30 - 05:00 1.50 STMILL P WEXIT POOH FROM 2,726'MD TO 918'MD -MONITORING DISPLACEMENT VIA THE TRIP TANK-HOLE TAKING CORRECT FILL MW-9.5 PPG IN/OUT Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 9 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25' Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) _ 05:00 - 08:00 3.00 STMILL P WEXIT POOH FROM 918'MD TO SURFACE LAYING DOWN BHA -MONITOR WELL PRIOR TO PULLING BHA THROUGH THE STACK-WELL STATIC -STAND BACK 4 STANDS OF HWDP,LD DC'S &MILLING ASSEMBLY. -STARTER MILL 3/8"OUT OF GAUGE LOWER STRING MILL 1/4"OUT OF GAUGE -BOTH UPPER STRING MILLS IN GAUGE 08:00 - 08:30 0.50 STMILL P WEXIT CLEAN AND CLEAR RIG FLOOR -LD BAKER MILLS 08:30 - 10:00 1.50 STMILL P WEXIT PULL WEAR BUSHING -RIH WITH 5"BOPE STACK JET RINSE TOOL &RINSE STACK FUNCTION TEST VBR'S AND BLINDS CLEAN AND FLUSH FLOW LINE AND SHAKER BEDS -INSTALL WEAR RING,ID-8.875",OD=13.5", LENGTH=15" -C/O SLIP INSERTS 10:00 - 13:00 3.00 STMILL P WEXIT DRILL PIPE MANAGEMENT RIH WITH 5"DP SINGLES WITH MULE SHOE ON BOTTOM T/2,747 MD -MONITOR TRIP ON THE TRIP TANK 13:00 - 14:30 1.50 STMILL P WEXIT POOH FROM 2,747'MD TO SURFACE -MONITOR WELL PRIOR TO PULLING BHA THROUGH THE STACK-WELL STATIC -C/O PS-21 SLIP INSERTS AND T/HAND INSERTS. 14:30 - 21:00 6.50 STMILL P WEXIT P/U INTERMEDIATE DRILLING BHA#1 AS PER SCHLUMBERGER DD -HOLD PJSM FOR P/U BHA -RIH T/647 MD&MONITOR WELL -RIH F/647'T/2400'MD PICKING UP SINGLES 'FROM THE PIPE SHED j-SHALLOW HOLE TEST @ 1590'W/500 GPM, 1100 PSI -RIH F/2400'T/2,730'@ 720 FPH -TRIP MONITORED ON THE TRIP TANK LOGGING PASS AS PER GEO- -2,400 TO 2,781'MD(TOP OF WINDOW) -WASH DOWN F/2,781'MD TO 2,815'MD -450 GPM,992 PSI -h 21:00 - 00:00 3.00 DRILL P INTI !DRILL 8-1/2"INTERMEDIATE FROM 2,825'TO 2920'MD(2,920'TVD) RIH W/GYRO DATA T/2,825'T/ORIENT TOOL FACE,POOH W/GYRO -DRILL AHEAD INTERMEDIATE -500 GPM,1270 PSI ON 1220 PSI OFF -MW 9.5IN/9.5 OUT,ECD 10.20 PPG -30 RPM,2KTQON/1KTQOFF -4-6K WOB 1-AST=1.38 HRS,ART=1.89,ADT=3.27 HRS j-P/U=115K,S/O=125K -CONTINUE TAKING GYRO SURVEYS @ EACH CONNECTION T/ORIENT TOOL FACE SPR'S AT 2821'MD(2821'TVD),TIME 20:45, MW 9.5 PPG i#1 MP-20/30 SPM=180/210 PSI #2 MP-20/30 SPM=160/190 PSI Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 10 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544.400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWI:500292058700 Active datum:Y 10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/19/2013 00:00 - 06:00 6.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 2,920'MD TO 3,201'MD(3,190'TVD) -550 GPM,1520 PSI ON 1415 PSI OFF -MW 9.5 IN/9.5 OUT,ECD 10.20 PPG -50 RPM,2K TQ ON/1K TQ OFF -11KWOB P/U=125K,S/O=133K,ROT=130K -BLOW DOWN TOP DRIVE AND ORIENT TOOL FACE WITH GYRO AFTER EACH CONNECTION 06:00 - 07:00 1.00 DRILL P INTI PERFORM FINAL GYRO SURVEY AT 3,201'MD 3190'TVD R/D GYRO SURVEYING EQUIPMENT 07:00 - 12:00 5.00 DRILL P • INTI DRILL 8-1/2"INTERMEDIATE FROM 3,201'MD TO 3,674'MD(3,649'TVD) -600 GPM,1830 PSI ON 1710 PSI OFF MW 9.5 IN/9.5OUT,ECD 10.53 PPG -80 RPM,3K TQ ON/2K TQ OFF -11KWOB P/U=136K,S/0=142K,ROT=140K BACKREAM ENTIRE STAND PRIOR TO CONNECTION AST=1.92 HRS,ART=2.58 HRS,ADT=4.5 HRS -TOTAL BIT HOURS=5.63 HRS -TOTAL JAR HOURS=5.63 HRS -SURVEY EVERY-100' 1**MADE 24HR NOTIFICATION TO THE STATE FOR BOP TESTING** H CHUCK SHEEVE EMAILED BACK AND WANTED AN UPDATE AT 06:00 21 00 9.00 DRILL P 12 oo DRILL 8-1/2"INTERMEDIATE FROM 3,674'MD � INTI TO 4,527'MD,4,330 TVD -600 GPM,1830 PSI ON 1710 PSI OFF -MW 9.5 IN/9.5 OUT,ECD 10.39 PPG,W/ CALCULATED CLEAN HOLE @ 10.01 -80 RPM,3K TQ ON/2K TQ OFF !-17KWOB -BACKREAM ENTIRE STAND PRIOR TO CONNECTION 1-SURVEY EVERY-100' AT-4,100'PUMPED LOW VIS/HIGH VIS SWEEPS IN TANDEM,SIGNIFIGANT INCREASE IN CUTTINGS WITH SWEEP AT SURFACE-40-50% Printed 2/10/2014 10.09:05AM North America-ALASKA-BP Page 11 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UW:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 22:00 1.00 DRILL N SFAL INTI (CODE 8) FAILED AIR BOOTS ON LOW PRESSURE RISER ABOVE THE ANNULAR -APPEARED THAT BOTH AIR BOOTS ON THE LOW PRESSURE RISER WERE LEAKING -DRILLER RECOGNIZED THE LEAK QUICKLY AND SHUT DOWN THE PUMPS -ALLOWING-15 GAL OF MUD TO LEAK DOWN THE BOP STACK.WITH NO MUD LEAKING TO THE CELLAR OR THE GROUND. -PROCEEDED WITH CLEAN UP USING WATER AND THE RIG VAC -C/O AIR BOOTS,WORKING PIPE EVERY 5 MIN OR WHEN ABLE DURING REPAIR -PULL PS-21 SLIPS AND STRIP-O-MATIC ABOVE ROT TABLE,PULL LOW PRESSURE RISER AND CIO AIR BOOTS. -NOTIFICATIONS WERE MADE TO 5700,DAY WSLAND ROTARY SUPT,ODE -TRACTION REPORT INITIATED PENDING DDI '(CAR)REPORT FOR CORRECTIVE ACTIONS I.R.-4601732 22:00 - 00:00 2.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 4,527'MD TO 4,660'MD,4,416'TVD -600 GPM,1890 PSI ON 1820 PSI OFF -MW 9.5 1N/9.5 OUT,ECD 10.54 PPG -80 RPM,3K TQ ON/2K TQ OFF -17K WOB -P/U=152K,S/O=151K,ROT=148K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION -AST=2.7 HRS,ART=4.32 HRS,ADT=7.02 HRS -TOTAL BIT HOURS=12.65 HRS -TOTAL JAR HOURS=12.65 HRS -SURVEY EVERY-100' 12/20/2013 00:00 - 12:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 4,660'MD TO 5,477'MD(4,808'TVD) -600 GPM,1900 PSI ON 1730 PSI OFF -MW 9.5 IN/9.5 OUT,ECD 10.04 PPG, WI CALCULATED AT 9.98 PPG -80 RPM,3K TO ON/2K TQ OFF -20K WOB -P/U=150 K,S/O=150 K,ROT=146 K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION -AST=1.9 HRS,ART=5.43 HRS,ADT=7.33 HRS -TOTAL BIT HOURS=19.98 HRS -TOTAL JAR HOURS=19.98 HRS -SURVEY EVERY-100' -PUMPED LOW VIS/HIGH VIS SWEEP TANDEM-SLIGHT INCREASE IN CUTTINGS RETURN -DUMPED 290 BBLS OF MUD AND STARTED BLEEDING IN NEW MUD Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 12 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWN:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) (usft) 12:00 - 00:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 5,477'MD j TO 6,480'MD(5,235'TVD) -602 GPM,2100 PSI ON 2020 PSI OFF -MW 9.5 IN/9.5 OUT,ECD 10.29 PPG W/ CALCULATED AT 9.95 PPG -80 RPM,9K TQ ON/7K TQ OFF -20K WOB -P/U=181 K,S/O=151 K,ROT=157 K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION -AST=1.45 HRS,ART=8.15 HRS,ADT=9.6 HRS -TOTAL BIT HOURS=29.58 HRS •-TOTAL JAR HOURS=29.58 HRS •-SURVEY EVERY-100' -PUMPED LOW VIS/HIGH VIS SWEEP TANDEM-SLIGHT INCREASE IN CUTTINGS RETURN SPR'S AT 6,227'MD(5,119'TVD),TIME 20:30, MW 9.5 PPG #1 MP-20/30 SPM=240/280 PSI #2 MP-20/30 SPM=220/260 PSI 12/21/2013 00.00 - 01.00 1.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 6,480'MD TO 6,500'MD 5,243 TVD -602 GPM,2100 PSI ON 2020 PSI OFF -MW 9.5 IN/9.5OUT,ECD 10.29 PPG CALCULATED 9.95 PPG -80 RPM,9K TQ ON/7K TQ OFF 20K WOB -P/U=181 K,S/0=151 K,ROT=157K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION 01:00 - 02:00 1.00 DRILL P ' INTI CIRCULATE BOTTOMS UP X 3 -602 GPM,ICP-2110 PSI,FCP-2025 PSI,80 RPM -PUMPED LOW/HIGH VIS SWEEP TANDEM SAW 10-15%INCREASE IN RETURNS IN CUTTINGS -CIRCULATED UNTIL SHAKERS CLEANED UP -MONITOR WELL 10 MIN PRIOR TO PULLING 1 OFF BOTTOM-WELL STATIC TAKE SPR'S: SPR'S AT 6,500'MD(5,243'ND),TIME 02:00, MW 9.5 PPG #1 MP-20/30 SPM=220/260 PSI #2 MP-20/30 SPM=220/260 PSI 02:00 - 05:00 3.00 DRILL P INTI POOH WITH INTERMEDIATE DRILLING BHA ON 5"DP -POOH F/6,500'MD TO-2,730' -MONITORING TRIP VIA THE TRIP TANK DRILLER AND PIT WATCHER KEEPING ACCURATE TRIP SHEETS. MW9.5IN/9.5OUT -NO OVERPULL ON TRIP OUT OF THE HOLE 05:00 - 07:30 2.50 DRILL P INTI SLIP&CUT DRILLING LINE -SLIP AND CUT 86'FT -SERVICE AND INSPECT TOP DRIVE Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 13 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:30 - 11:30 4.00 DRILL P INTI CONT POOH WITH INTERMEDIATE DRILLING BHA ON 5"DP -POOH F/ -2,730'TO 647'MD -MONITOR TRIP VIA THE TRIP TANK.N -MONITOR THE WELL PRIOR TO PULLING NON SHEARABLES THROUGH THE STACK- WELL TACKWELL STATIC -CONT POOH F/647'TO 179',RACKING BACK HWDP C/O SLIP INSERTS,RACK BACK JARS AND DC'S -LD REMAINDER OF BHA PER SLB DIRECTION 11:30 - 13:30 2.00 DRILL P INTI CLEAN AND CLEAR RIG FLOOR -PULL WEAR BUSHING&DRAIN THE STACK -INSTALL TEST PLUG W/5"TEST JOINT MU 5"FLOOR VALVES 13:30 - 18:30 5.00 DRILL P INTI TEST BOPE -TEST BOPE TO 250 PSI LOW,4,000 PSI HIGH FOR 5 MINUTES EACH -TEST(2)2-7/8"BY 5-1/2" VBR'S WITH 5" TEST JOINT -TEST ANNULAR TO 250 PSI LOW AND 3500 PSI HIGH WITH 5"TEST JOINT -TEST MANUAL OPERATED SUPER CHOKE TO 250 LOW AND 2000 PSI HIGH -ALL TESTS CHARTED, -SEE ATTACHED BOP TEST CHARTS&BOPE REPORT FOR TEST DETAILS -(1)FAILURE,LOWER IBOP FAILED AOGCC GIVEN 24 HR NOTICE OF BOP TESTING. -TEST WITNESS BY AOGCC REP JEFF TURKINGTON RD TEST EQUIPMENT 18:30 - 20:30 2.00 DRILL N RREP INTI -CODE 8— CO LOWER IBOP -PJSM FOR CHANGE OUT,PROCEDURE REVIEW FOR OUT OF SCOPE OPERATION. -RE TEST THE LOWER IBOP -250 PSI LOW&4000 PSI HIGH/5 CHARTED MIN-TEST GOOD 20:30 - 21:30 1.00 DRILL P INTI PULL TEST PLUG -MU TEST JOINT AND INSTALL WEAR RING -8-7/8"ID,15-1/4"OD 21:30 - 00:00 2.50 DRILL P INTI PU/MU INTERMEDIATE DRILLING BHA#2 (ROTARY STEER ABLE) -PJSM FOR PICKING UP BHA -PU/MU BHA AS DIRECTED BY SLB DD& MWD -P/U BHA OUT OF DERRICK F/79'T/644' -P/U WT: 71K,S/O WT:80K -CLEAN FLOOR&PREP FOR P/U DOUBLES F/ PIPE SHED Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 14 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/22/2013 00:00 - 05:30 5.50 DRILL P INTI RIH WITH 8-1/2"INTERMEDIATE(RSS)BHA#2 -RIH ON 5"DOUBLES F/PIPE SHED F/644'TO 4,415'MD MONITORING TRIP ON THE TRIP TANK MW-9.5 PPG IN/OUT RIH F/4,415'MD TO 6,500'MD ON 5"TRIPLES FROM THE DERRICK. -TIGHT SPOTS AT: 4,230',4,470,4,750,&5,015' -15-20K WT TAKEN.WORKED PAST WITH NO ISSUE 05:30 - 06:00 0.50 DRILL P INTI 'DOWN LINK TO THE MWD TOOL CBU WITH ROTATION AND RECIPROCATION F/6416'MD TO 6500'MD -500 GPM,1420 PSI -TAKE CHECK SHOT TO VERIFY THE LAST SURVEY 06:00 - 12:00 6.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 6,500'MD TO 7,177'MD(5,533'TVD) 550 GPM,1930 PSI ON 1820 PSI OFF MW 9.5 IN/9.5OUT,ECD 10.91 PPG, W/ CALCULATED AT 10.04 PPG -150 RPM,10KTQON/7KTQOFF -20K WOB -P/U=188 K,S/O=156 K,ROT=165 K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION - ART=3.32 HRS,ADT=3.32 HRS -TOTAL BIT HOURS=3.32 HRS -TOTAL JAR HOURS=32.58 HRS -SURVEY EVERY-100' -PUMPED LOW VIS/HIGH VIS SWEEP TANDEM-SLIGHT INCREASE IN CUTTINGS ,RETURN DUMPED 290 BBLS OF MUD AND STARTED BLEEDING IN NEW MUD 12:00 - 00:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 7,177'MD TO 8,337'MD(6,270'TVD) -550 GPM,2010 PSI ON 1980 PSI OFF -MW 9.6 IN/9.6 OUT,ECD 10.7 PPG, W/ CALCULATED AT 9.97 PPG -150 RPM,14K TO ON 10K TQ OFF -20K WOB -P/U=220 K,S/O=172 K,ROT=180 K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION - ART=6.07 HRS,ADT=6.07 HRS -TOTAL BIT HOURS=9.39 HRS -TOTAL JAR HOURS=38.65 HRS -SURVEY EVERY-100' -PUMPED LOW VIS/HIGH VIS SWEEP TANDEM-SLIGHT INCREASE IN CUTTINGS RETURN-10% -DUMPED 290 BBLS OF MUD AND STARTED BLEEDING IN NEW MUD 9.7 PPG Printed 2/10/2014 10:09:O5AM North America-ALASKA-BP Page 15 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/23/2013 00:00 - 10:00 10.00 DRILL P INTI CONTROL DRILL 8-1/2"INTERMEDIATE FROM 8,337'MD TO 9,072'MD 6,913'TVD,DUE TO HIGH ECD'S 600 GPM,2520 PSI ON 2400 PSI OFF MW9.6lN/9.6OUT,ECD 11.2 PPG, W/ CALCULATED AT 11.13 PPG -150 RPM,14-15K TQ ON 16K TQ OFF -15KWOB -P/U=247K,S/O=183K,ROT=216K BACKREAM ENTIRE STAND PRIOR TO !CONNECTION -TAKING SURVEYS EVERY 100' -PUMPED LOW/HIGH VIS TANDEM SWEEP- SAW 5-10%INCREASE IN CUTTINGS 10:00 - 11:00 1.00 DRILL P INTI PUMPED 42 BBL HIGH VIS WEIGHTED SWEEP 9,072'MD -ROTATE&RECIPROCATE F/8,977'MD T/ 9,072' PUMPED@600GPM,180RPM W/14K 1 TORQUE -50-70%CUTTINGS INCREASE 11:00 - 16:00 5.00 DRILL P INTI CONTROL DRILL 8-1/2'INTERMEDIATE FROM 1 19,072"MD TO 9,450'MD 7,450'TVD -DUE TO HIGH ECD'S -600 GPM,2620 PSI ON 2540 PSI OFF -MW 9.7 IN/9.7OUT,ECD 11.22 PPG, W/ CALCULATED AT 10.14 PPG -150 RPM,15-16K TQ ON 13K TQ OFF -15KWOB -P/U=257K,SIO=183K,ROT=189K - ART=9.44 HRS,ADT=9.44 HRS -TOTAL BIT HOURS=18.83 HRS -TOTAL JAR HOURS=48.09 HRS COMMUNICATION WITH ODE IN TOWN ON ECD ISSUE,DECISION TO MAKE WIPER TRIP. 16:00 - 16:30 0.50 DRILL P INTI CIRCULATE B/U WHILE ROTATE AND RECIPROCATE F/9,450'MD T/9,355'MD -600 GPM,2520 PSI -150 RPM W/14 K TORQUE -P/U=257 K,S/O=189 K,ROT=189 K - MW 9.7 IN/9.7 OUT -MONITOR WELL PRIOR TO PULLING OFF BOTTOM-WELL STATIC 16:30 - 20:00 3.50 DRILL P INTI BACK REAM F/9,450'MDT/7,337'MD -600 GPM,2240 PSI,150 RPM W/13K TORQUE -MW-9.7 PPG IN/OUT -NO OVER PULL OFFBOTTOM 20:00 - 21:00 1.00 DRILL N RREP INTI i—CODE8— TROUBLE SHOOT AMPHION -AMPHION SYSTEM STOPPED COMMUNICATION W/DRILLER -RIG ELECTRICIAN TROUBLE SHOOT PROBLEM,GOOD Printed 2/10/2014 10.09:05AM North America-ALASKA-BP Page 16 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:OOAM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 00:00 3.00 DRILL P INTI BACK REAM OUT OF THE HOLE AT FULL DRILING RATE -BACK REAM F/7,337'MD T/5,475'MD -600 GMP,2240 PSI,150 RPM W/13K TORQUE -P/U=170 K,S/O=140 K -MW-9.7 PPG IN/OUT,ECD-10.64 PPG, CALCULATED 10.24 TAKE SPR'S: SPR'S AT 9,447'MD(7,239'TVD),TIME 16:30, MW 9.7 PPG #1 MP-20/30 SPM=240/300 PSI #2 MP-20/30 SPM=220/280 PSI 12/24/2013 00:00 - 03:30 3.50 DRILL P INTI BACK REAM OUT OF THE HOLE -BROOH F/5,475'TO 9-5/8"WINDOW@ 2,798'. -600 GPM,1760 PSI,150 RPM W/10K TORQUE -NO ROTATION THROUGH THE WINDOW, SLICK THROUGH THE WINDOW-NO OVERPULL. -CONT POOH TO 2,758'MD 03:30 - 04:00 0.50 DRILL P INTI -CIRCULATE BOTTOMS UP IN THE 9-5/8" CASING -600 GPM,1700 PSI, -MW-9.7 PPG IN/OUT 04:00 - 06:30 2.50 DRILL P INTI SLIP&CUT DRILL LINE -PJSM FOR SLIP N CUT OPERATION -CUT 47'OF DRILL LINE. -CALIBRATE TOTCO,MWD AND AMPHION BLOCK HEIGHT -CHECK C-O-M -SERVICE AND INPSECT TOP DRIVE AND BLOCK -FLUSH PS-21 HYDRAULIC LINES MONITOR WELL VIA TRIP TANK 06:30 - 11:30 5.00 DRILL P INTI RIH WITH 8 1/2"RSS BHA ON ELVEATORS F/ 2,728'TO 9,359' -FILL PIPE EVERY 2,000' -MONITOR DISPLACMENT VIA TRIP TANK -CHANGE OUT#2 SHALE SHAKER MOTOR 11:30 - 12:00 0.50 DRILL P INTI MAKE UP TOP DRIVE AND WASH DOWN F/ 9,359'TO 9,450' -ROTATE AND RECIPROCATE PIPE F/9,450' TO 9,359' -598 GPM,2530 PSI -150 RPM,15-16K TO -P/U=270 K,S/O=180 K,ROT 202 K -MW9.7IN/OUT -DOWN LINK POWER DRIVE 12:00 - 12:30 0.50 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 9,450'MD TO 9,545'MD(7,323'TVD) -575 GPM,2361 PSI ON 2361 PSI OFF -MW 9.7 IN/9.7 OUT,ECD 11.11 PPG -150 RPM,15K TQ ON/14K TQ OFF -20K WOB -P/U=271 K,S/O=181 K,ROT=203 K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 17 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:OOAM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth '' Phase Description of Operations (hr) (usft) 12:30 - 15:00 2.50 DRILL P INTI ROTATE AND RECIPROCATE F/9,545',9,445' -RAISE MUD WEIGHT F/9.7 PPG TO 10.5 PPG -575 GPM,ICP=2,361 PSI,FCP=2,560 PSI -150 RPM,15K TQ ON/14K TQ OFF -P/U=271 K,S/0=181 K,ROT=210K -OBTAIN SPR WITH 10.5 PPG MUD -#1/#2 MP-20/30 SPM-180/260 PSI 15:00 - 00:00 9.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 9,545'MD TO 10,207'MD(7,871'ND) -550 GPM,2715 PSI ON 2675 PSI OFF -MW 10.5 IN/10.5 OUT - ECD'S 11.95 PPG ACTUAL, 11.01 CALC 150 RPM,18K TQ ON/17K TQ OFF -15K WOB -P/U=295 K,S/O=190 K,ROT=210 K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION - ART=5.91 HRS,ADT=5.91 HRS -TOTAL BIT HOURS=24.74 HRS -TOTAL JAR HOURS=54.00 HRS SPR'S AT 10,110'MD(7,798'TVD),TIME 22:30, MW 10.5 PPG #1 MP-20/30 SPM=220/280 PSI #2 MP-20/30 SPM=210/270 PSI 12/25/2013 00:00 - 12:00 12.00 DRILL P INTI DRILL B-1/2"INTERMEDIATE FROM 10,207'MD TO 10,965'MD(8,461'TVD) -550 GPM,2650 PSI ON 2600 PSI OFF -MW 10.5 IN/10.5 OUT - ECD'S 11.90 PPG ACTUAL, 11.03 CALC -150 RPM,20 K TQ ON/20 K TQ OFF -15KWOB -P/U=315 K,S/O=198 K,ROT=234 K BACKREAM ENTIRE STAND PRIOR TO 1 CONNECTION -ART=7.15 HRS,ADT=7.15 HRS -TOTAL BIT HOURS=31.89 HRS -TOTAL JAR HOURS=60.78 HRS 12:00 - 20:00 8.00 DRILL P INTI I DRILL 8-1/2"INTERMEDIATE FROM 10,965'MD TO 11,439'MD(8,827'TVD) -550 GPM,2750 PSI ON 2692 PSI OFF -RAISE MW F/10.5 TO 10.6 PPG MW 10.6 IN/10.6 OUT - ECD'S 11.96 PPG ACTUAL, 11.08 CALC -150 RPM,22 K TQ ON/21 KTQOFF -17KWOB -P/U=315 K,SIO=205 K,ROT=227 K -BACKREAM ENTIRE STAND PRIOR TO CONNECTION -ART=40.0 HRS,ADT=4.04 HRS -TOTAL BIT HOURS=35.93 HRS -TOTAL JAR HOURS=64.82 HRS 20:00 - 20:30 0.50 DRILL P INTI GREASE WASH PIPE AND INSPECT TOP DRIVE -SUSPECT POSSIBLE BEARING FAILURE FOUND ON INSPECTION. -INFORMED DDI TP AND BP WSL -DESICION MADE TO POOH AND CHANGE TRACTION MOTOR Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 18 of 54 Operation Summary Report Common Wefl Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 ' End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. 1 UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task I Code NPT I NPT Depth Phase Description of Operations (hr) (usft) 20:30 - 21:30 1.00 DRILL P INTI ,CIRCULATE BOTTOMS UP AT 11,439' '-RECIPROCATE F/11,439'TO 11,343' -550 GPM,2562 PSI -P/U=315 K,S/0=198 K -MW 10.6 PPG IN/OUT -OBTAIN SPR PRIOR TO TRIP 21:30 - 00:00 2.50 DRILL N RREP 11,439.00 INTI CODE 8-RIG REPAIR MONITOR WELL,STATIC -PUMP OUT OF HOLE F/11,439'TO 9,638' -84 GPM,180 PSI 12/26/2013 00:00 - 07:00 7.00 DRILL N RREP 11,439.00 INT1 I CODE 8-RIG REPAIR POOH TO CHANGE OUT TRACTION MOTOR ON TOP DRIVE -PUMP A 20 BBL,12.3 PPG SLUG -POOH ON ELEVATORS F/9,638'T/SURFACE -L/D BHA -BIT GRADE 2-1-CT-N-X-I-NO-RIG ,-MONITOR WELL 10 MIN BEFORE PULLING NON-SHEARABLES THROUGH BOP 0700 - 08:00 1.00 DRILL N RREP 11,439.00 INTI I CODE 8-RIG REPAIR CLEAN AND CLEAR RIG FLOOR -REPOSITION TOP DRIVE ACCESS LANDING IM/U 10'PUP TO TOP DRIVE AND SET IN ROTARY -BLOW DOWN CHOKE LINE AND LINE UP TO FILL HOLE AT TOP 08:00 - 12:00 4.00 DRILL N RREP 11.439.00 INTI CODE 8-RIG REPAIR -HOLD PJSM FOR REMOVING TRACTION MOTOR -UN-PIN AND REMOVE BLOCK FROM TOP DRIVE -REMOVE TRACTION MOTOR AND LOWER TO RIG FLOOR 12:00 - 22:30 10.50 DRILL N RREP 11,439.00 INTI CODE 8-RIG REPAIR HOLD PJSM WITH CREW FOR INSTALLING NEW TRACTION MOTOR -INSTALL NEW TRACTION MOTOR TO TOP DRIVE -TEST NEW TRACTION MOTOR(FAILED), SWAP LEADS ON TRACTION MOTOR(GOOD) 22:30 - 23:00 0.50 DRILL P INTI r SERVICE TOP DRIVE 23:00 - 00:00 1.00 DRILL N RREP 11,439.00 INTI CODE 8-RIG REPAIR -HOLD PJSM WITH CREW FOR P/U BHA -P/U RSS ROWER DRIVE&BIT -SURFACE TEST POWER DRIVE AT 300 GPM 270 PSI 12/27/2013 00:00 - 03:00 3.00 DRILL N RREP 11,439.00 INTI CODE 8-RIG REPAIR PICK UP RSS BHA AND RIH TO 2722' 03:00 - 04:30 1.50 DRILL P INTI CUT/SLIP DRILLING LINE -CALIBRATE BLOCK HEIGHT,MWD,TOTCO, AND AMPHION 04:30 - 05.00 0.50 DRILL P INTI RIG SERVICE AND CHECK VFD FAULT 05:00 - 11:00 6.00 DRILL N RREP 11,439.00 INTI CODE 8 RIG REPAIR -RIH W/RSS ASSEMBLY F/2,728'MDT/9,548' MD -FILL PIPE EVERY 20 STANDS -MONITOR DISPLACEMENT Printed 2/10/2014 10:09:O5AM North America-ALASKA-BP Page 19 of 54 Operation Summary Report Common Well Name Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11:00 - 12:00 1.00 DRILL P INTI CIRCULATE BU X 1.5 @ TOP OF HRZ -STAGE PUMPS F/3 BPM T/13 BPM FOR ECD MANAGEMENT -550 GPM,2424 PSI,TOTAL STKS=6,828 12:00 - 18:00 6.00 DRILL N DPRB 11,158.00 INTI WORKING TIGHT HOLE -RIH F/9,548'MD T/11,158'MD -MONITOR DISPLACEMENT ON PITS#1&2 -ENCOUNTER TIGHT SPOTS @ 9,956'MD, 10,050'MD,10,117'MD -WIPED THROUGH TIGHT SPOTS TWICE, TAKING 20 K-25 K WEIGHT -P/U ONE SINGLE ON TOP OF STAND 111 -PACKING OFF @ 11,158',STAGE PUMPS AND WORK PIPE SLOWLY 18:00 - 19:30 1.50 DRILL N DPRB 11,158.00 INTI CIRCULATE BU @ 11,158' -STAGE PUMPS T/400 GPM,1525 PSI -P/U 320 K,S/O 190 K NO SHALE AT SHAKERS 19:30 - 00:00 4.50 DRILL N DPRB 11,385.00 INTI WORKING TIGHT HOLE -WASH IN HOLE F/11,158'MD T/11,385'MD -MW 10.7 PPG,ECD 11.4 -400 GPM,PACKING OFF -60 RPM,TQ 23 K ON UP STROKE -P/U 307 K,S/O 178 K -WOB 5-10 K,25 K OVERPULL -NO SHALE AT SHAKERS WHILE WASHING& REAMING TIGHT HOLE 12/28/2013 00:00 - 01:30 1.50 DRILL N DPRB 11,439.00 INTI WASH F/11,385'MD TO 11,439'MD -WORKING TIGHT HOLE T/11,385'MD TO 11,439'MD -MW 10.7 PPG,ECD 11.4 -400 GPM,PACKING OFF -60 RPM,TQ 23 K ON UP STROKE -P/U 330 K,S/O 195 K,ROT 245 K -WOB 5-10 K,25 K OVERPULL -NO SHALE AT SHAKERS WHILE WASHING& REAMING TIGHT HOLE. MWD SURVEY @ 11,439'MD 01:30 - 03:00 1.50 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 11,439'MD TO TD @ 11,535'MD(8,898'TVD) -550 GPM,2600 PSI ON 2500 PSI OFF -MW 10.7 IN/10.7 OUT - ECD'S 11.55 PPG ACTUAL, 11.04 CALC -150 RPM,22 K TQ ON/21 K TQ OFF -20 K WOB -ART=1.45 HRS,ADT=1.45 HRS -TOTAL BIT HOURS=37.38 HRS -TOTAL JAR HOURS=66.27 HRS 03:00 - 06:00 3.00 DRILL P INTI CIRCULATE BOTTOMS UP 3X @ 550 GPM -RECIPROCATE PIPE F/11,535'TO 11,466" -PU=330 K,SO=195 K,ROT=245 K -OBTAIN SPR AND SURVEY AT BOTTOM -ECD'S 11.42 PPG ACTUAL, 11.04 CALC -MONITOR WELL FOR 10 MINUTES,WELL STATIC 06:00 - 06:30 0.50 DRILL P INTI ATTEMPT TO PUMP OOH F/11,535'TO 11,379' -84 GPM,30'PER MINUTE -HOLE PULLING TIGHT 40 K OVER -DECISION MADE TO TIH TO BOTTOM AND INCREASE MUD WEIGHT TO 11.0 PPG Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 20 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,5441400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-1 OB Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 06:30 - 10:00 3.50 DRILL P INTI CIRCUALTE AND CONDITION WHILE RAISING MUD WEIGHT TO 11.0 PPG • -ROTATE AND RECIPROCATE F/11,535'TO 11,466' -550 GPM,2457 PSI -140 RPM,23 K TO -P/U 325 K,S/O 190 K,ROT 245 K -OBTAIN SPR -MONITOR WELL FOR 10 MINUTES,WELL STATIC _ 10:00 - 14:00 4.00 DRILL P INTI PUMP OOH F/11,535'TO 9,627'(THRZ) -84 GPM,221 PSI,30'PER MINUTE -P/U 280 K,S/0 187 K -HOLE PULLED SLICK -MONITOR WELL FOR 10 MINUTES,WELL STATIC -BLOW DOWN TOP DRIVE 14:00 - 16:00 2.00 DRILL P INTI POOH ON ELEVATORS F/9,627'TO 6,454' -HOLE PULLED SLICK 16:00 - 17:00 1.00 DRILL P INTI CIRCULATE AND CONDITION MUD AT 6,454' -ROTATE AND RECIPROCATE F/6,454'TO 6,350' -550 GPM,2,020 PSI -140 RPM,13 K TQ -MW 11.0 PPG IN/OUT -11.78 ECD -MONITOR WELL FOR 10 MINUTES,STATIC -BLOW DOWN TOP DRIVE 17:00 - 21:30 4.50 DRILL P INTI TIH ON ELEVATORS F/6,350'TO 11,474' -P/U 322 K,S/O 199 K NO TIGHT SPOTS NOTED '-MONITOR DISPLACEMENT ON TRIP TANK -FUNCTIONED ALL BOPE EXCEPT SHEARS -ANNULAR=21 SEC,UPPER/LOWER RAM=19 •SEC,KILL/HCR=2 SEC 21:30 - 00:00 2.50 DRILL P INTI WASH TO BOTTOM F/11,474'TO 11,535' -440 GPM,1875 PSI • -PUMP 35 BBL HI-VIS SWEEP @ 550 PSI,2675 PSI -100 RPM,22K TORQUE -422 UNITS OF GAS ON B/U W 10.5 PPG MUD CUT,ECD 11.92 PPG • -MUD LOSS FOR TOUR 38 BBL=3 BBL/HR LOSS DURING TRIP 12/29/2013 00:00 - 01:00 1.00 DRILL P INTI CIRCULATE WHILE ROTATING& RECIPROCATING F/11,474'T/11,535'MD -550 GPM,2,530 PSI -100 RPM,21K TORQUE -P/U 328K,S/O 198K,ROT 242K W/22K -TOTAL STROKES PUMPED 10,800 -MONITOR WELL FOR 10 MIN(STATIC) -0 BBLS LOSS DURING CIRCULATION 01:00 - 04:00 3.00 DRILL P INTI POOH WITH 8-1/2"INTERMEDIATE BHA#3 W/ RSS -PUMP OUT OF THE HOLE F/11,535'MD T/ 9,642'MD -2 BPM,130 PSI -MONITOR WELL WITH ACTIVE PIT -LOST 3 BBLS DURING PUMP OUT -MONITOR WELL,STATIC Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 21 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:00 - 08:30 4.50 DRILL P INTI �POOH ON ELEVATORS -PUMP 30 BBL 13.2 PPG SLUG -POOH F/9,642'MD T/2,720'MD 08:30 - 09:00 0.50 DRILL P INTI CBU 2,720'INSIDE WINDOW -550 GPM,1750 PSI -DROP RABBIT MONITOR WELL FOR 10 MINUTES.WELL STATIC 09 00 - 10:30 1.50 DRILL P INTI POOH ON ELEVATORS 1-POOH F/2,720"MDT/739'MD -UD 2 SINGLES F/STAND#1 -P/U CEMENT HEAD AND M/U TO REMAINING SINGLE OF STAND#1 -L/D CEMENT HEAD ASSEMBLY 1-MONITOR WELL VIA TRIP TANK -MONITOR WELL FOR 10 MINUTES,WELL 'STATIC 10:30 - 13:00 2.50 DRILL P INTI POOH F/739'TO SURFACE -RACK BACK 1 STAND OF HWDP -UD JAR STAND AND JARS -RACKBACK3STANDSOFHWDP UD MWD,ILS,AND ARC AS PER DD j-BREAK BIT AND UD POWER DRIVE AS PER DD -BIT GRADE 2-1-CT-N-X-I-NO-TD CLEAN AND CLEAR RIG FLOOR 13 00 - 15:30 2.50 DRILL P INTI 'PULL WEAR RING AND INSERT TEST PLUG -REMOVE 2 7/8"X 5"VBR UPR AND INSTALL 7"RAMS -TEST 7"RAMS TO 250 PSI LOW/4000 PSI HIGH FOR FIVE MINUTES EACH ON CHART R/D TEST EQUIPMNET AND PULL TEST PLUG 1-INSTALL WEAR RING -PERFORM DERRICK INSPECTION 15:30 - 17:00 1.50 DRILL P INTI MAKE UP LINER HANGER ASSEMBLY AND RACK BACK IN DERRICK -PICK UP 7"26#L-80 JNT#216 -P/U BAKER LINER HANGER ASSEMBLY AND M/U TO LINER JNT#216 -TORQUE TO 11,950 FT/LBS ,I-P/U AND M/U 1 JNT OF 5"DP TO LINER ,HANGER ASSEMBLY -ADD PAL MIX RACK ASSEMBLY IN DERRICK 17:00 - 19:00 2.00 DRILL P INTI RIG UP LINER RUNNING EQUIPMENT -R/U VOLANT TOOL,BAIL EXTENSION,AND SIDE DOOR ELEVATORS,FILL UP HOSE,AND PS-21 SLIPS FOR 7"LINER RUN -HELD PJSM WITH WSL,TP,RIG CREW, BAKER,AND DOYON CASING FOR 7"LINER RUN 19:00 - 00:00 5.00 DRILL P INTI RUN 7"26#L-80 VT-HC LINER TO 2,061" -CHECK FLOATS -USE JET LUBE SEAL GUARD CASING DOPE -TORQUE TURN CONNECTIONS TO 11,950 FT/LBS -RUN LOCKED DOWN CENTRALIZER ON JNTS#1 AND#2 j-RUN FLOATING CENTRALIZERS ON JOINTS #3-#24 -FILL PIPE EVERY 10 JNTS -P/U 92 K,S/O 94 K Printed 2/10/2014 10:09:O5AM North America-ALASKA-BP Page 22 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/30/2013 00:00 - 01:30 1.50 CASING P INTI CIRCULATE WHILE RECIPROCATING F/2,721' T/2,760'MD -CIRCULATE BU X 1.5 AT 9-5/8"WINDOW -STAGE UP TO 6 BPM,250 GPM,420 PSI -P/U 92K,S/O 94K TOTAL STROKES PUMPED 1,320 01:30 - 14:00 12.50 CASING P INTI RUN 7"26#L-80 VT-HC LINER F/2,061"T/ 9,059'MD -USE JET LUBE SEAL GUARD CASING DOPE -TORQUE CONNECTIONS TO 11,950 FT/LBS -FILL PIPE EVERY 10 JNTS -P/U 203K,S/O 133K 14:00 - 14:30 0.50 CASING P INTI R/D CASING RUNNING EQUIPMENT&P/U LINER HANGER -R/D VOLANT,BAIL EXTENSIONS AND ELEVATORS P/U LINER HANGER F/DERRICK&RIH C/O SLIP INSERTS -P/U 15'DP PUP 14:30 - 15:30 1.00 CASING P INTI RIH T/THRZ ON STDS OF 5"DP FROM THE DERRICK -P/U STD OF HWDP -BREAK CIRCULATION @ 2 BPM,428 PSI -RIH F/9,059'T/9,623'MD -P/U 265K,S/O 140K 15:30 - 17:00 1.50 CASING P INTI CIRCULATE B/U @ THRZ -RECIPROCATE F/9,591'T/9,621'MD -215 GPM,541 PSI -P/U 275K,S/O 160K TOTAL STKS 3600 17:00 - 18:30 1.50 CASING P INTI RIH F/9,623'T/11,516"MD OF 5"DP FROM THE DERRICK PU=164K,SO=104K 18:30 - 19:30 1.00 CASING P INTI PU BOT CEMENT HEAD OFF SKATE AND MU TO STRING -SO TO TAG BOTTOM,SET DOWN TO 74K TO CONFIRM BOTTOM - LINER UNEXPECTEDLY RELEASED FROM RUNNING TOOL - AFTER RELEASE STRING WT 106k UP/ DOWN(WEIGHT OF DRILL PIPE) -SLACKED OFF STRING,DEPTH INDICATED LINER SETTLED 2'TO BOTTOM @ 11,535'MD -ESTABLISH CIRCULATION,W/4 BPM, PRESSURE SPIKED TO 1390 PSI -CONTINUE TO PUMP W/1 BPM 350 PSI DUE TO LOSSES. -MAKE NOTIFICATIONS TO ODE AND FIELD SUPT -TROUBLE SHOOT TO FORMULATE FORWARD PLAN 19:30 - 00:00 4.50 CASING N DFAL 11,535.00 INTI CONTINUE TO CIRCULATE,STAGING PUMPS UP TO 4 BPM TO CALCULATE LOSS RATE= 100 BBL HR -REDUCE RATE TO.5 BPM TO CONTINUE CIRCULATION WITH MINIMAL LOSSES. -CONTINUE TO TROUBLE SHOOT PROBLEM -SLACK OFF 8K AND ROTATE 10 ROUNDS, TQ=800 FT/LBS,INDICATIVE OF DOG SUB IS SETTING ON TOP OF TIE BACK SLEEVE. FINAL LOSS RATE-60 HR Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 23 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) I Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12/31/2013 00:00 - 00:30 0.50 CASING N DFAL 11,535.00 INTI CONTINUE TO CIRCULATE,AT REDUCED 'RATE TO.5 BPM TO CONTINUE CIRCULATION WITH MINIMAL LOSSES. -CONFIR WITH ODE AND BOT ON FORWARD PLAN 00:30 - 03:30 3.00 CASING N DFAL 11,535.00 ! INT1 PUMP 25 BBL SWEEP WITH DYE TO CHECK FOR LEAKAGE AROUND RS PACKOFF PRIOR TO CEMENT JOB. -PUMPED 2500 STKS/250 BBLS,NO DYE SEEN AT SURFACE —INDICATIVE OF POSITIVE RS PACKOFFSEAL AND INTEGRITY. -PUMP RATES 1BBLIMIN=310 PSI,2 BBL/MIN =425 PSI,3 BBL/MIN=540 PSI FINAL RATE 2.5 BBL/MIN=450 PSI AND LOSS RATE=38 BBL HR -TOTAL LOSSES DURING CIRCULATION=80 BBL 03'30 - 04:30 1.00 CASING P INTI PJSM W/SLB,BOT AND RIG CREW � -PRESSURE TEST CEMENTING LINES AND BATCH 50 BBLS 15.8 PPG CEMENT. 'CONTINUE CIRCLUATE.5 BPM/250 PSI, •LOSS RATE 4 BBL/HR. • • Printed 2/10/2014 10:09.05AM North America-ALASKA-BP Page 24 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:OOAM Rig Release:1/31/2014 Rig Contractor DOYON DRILLING INC. UVVI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:30 - 08:00 3.50 CASING P INTI CEMENT 7"INTERMEDIATE CASING LINER AS FOLLOWS: -PUMP 30 BBLS 12 PPG MUD PUSH W/2 #/BBL CEMNET AT 3 BPM,ICP/FCP 500 PSI -PUMP 50 BBLS,15.8 PPG CLASS G TAIL_ CEMENT W/2#/BBL CEMNET AT 3.0 BPM, -YIELD 1.16 CU.FT/SK, ICP=485 PSI,FCP= 50 PSI -DROP DRILL PIPE WIPER DART. -DISPLACE WITH RIG PUMPS WITH 11 PPG LSND MUD PER SLB CADE 1-37 BBLS DISPLACED AT 3 BPM:ICP-40 PSI, FCP-250 PSI -10 BBLS DISPLACED AT 2 BPM:ICP-150 PSI, FCP-700 PSI-FOR LATCH UP -LATCH UP CONFIRMED AT 39 BBLS DISPLACED CALC 4 BBL EARLY -253 BBLS DISPLACED AT 3 BPM:ICP-250 PSI ,FCP-650 PSI -36 BBLS DISPLACED AT 2.5 BPM:ICP-612 PSI,FCP-740 PSI -15 BBLS DISPLACED AT 2 BPM:ICP-740 PSI, FCP-790 PSI- -15 BBLS DISPLACED AT 1.5 BPM:ICP-720 'PSI,FCP-720 PSI REDUCE RATE TO 1 BPM PRIOR TO PLUG BUMP:FINAL CIRCULATING PRESSURES-660 PSI -CEMENT IN PLACE AT 07:40 -BUMP PLUG AND INCREASE P12ESSURE TO 3800 PSI TO SET LINER HANGER. -BLEED PRESSURE ANDEGK FLOATS- FLOATS HOLDING_ -SET DOWN 60K TO SET LINER TOP PACKER, PU AND REPEAT WITH 10 RPM TO CONFIRM SET,NO SURFACE INDICATION SEEN. -13 BBLS MUD LOST DURING INITIAL PHASE OF DISPLACEMENT -0 ZERO LOSSES WHILE 12.0PPG MUD PUSH AND 15.8 PPG CEMENT EXITED LINER SHOE 08:00 - 09:00 1.00 CASING P INTI TEST 9 5/8"ANNULUS X 7"LINER TOP PACKER TO 2,000 PSI TO VERIFY ZXP LINER TOP PACKER INTEGRITY.UNCHARTED. GOOD. LAY DOWN BOT CEMENT HEAD 09:00 - 10:00 1.00 CASING P INTI MU TDS AND PRESSURE UP TO 500 PSI -PU 30'PRESSURE LOSS SEEN AT SURFACE -LD SINGLE AND CBU @ 715 GPM,950 PSI -NO CEMENT SEEN ON BOTTOMS UP. -MONITOR WELL,STATIC 10:00 - 12:00 2.00 CASING P INTI SLIP/CUT DRLG LINE -CALIBRATE BLOCK HEIGHT,AMPHION,SLB AND TOTCO 12:00 - 16:00 4.00 CASING P INTI POOH W/5'DP -LAY DOWN AND INSPECT RUNNING TOOL WELL TOOK PROPER DISPLACEMENT -MONTIOR WELL,STATIC Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 25 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. WWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase J Description of Operations (hr) (usft) 16:00 - 18:30 2.50 CASING P INTI DRAIN STACK -PULL WEAR BUSHING AND SET TEST PLUG -CHANGE OUT UPPER RAMS TO 2 7/8"X 5" VBR -TEST UPPER RAM 250 PSI LOW/4000 PSI HIGH 5/5MIN -PULL TEST PLUG,INSTALL WEAR BUSHING. 18:30 - 00:00 5.50 CASING P INT1 PJSM,PERFORM DRILL PIPE MANAGEMENT RIH W/5"DP IN 25 STAND CYCLES -POOH LAYING DOWN 5"DP 1/1/2014 00:00 - 03:00 3.00 CASING P INTI PJSM,PERFORM DRILL PIPE MANAGEMENT RIH W/5"DP IN 25 STAND CYCLES -POOH LAYING DOWN 5"DP 03:00 - 04:00 1.00 CASING P INTI PERFORM SUCCESFUL CHARTED CIT ON 9 5/8"ANNULUS AND 7"LINE AND LINER TOP PACKER 250 PSI LOW 5 MIN/4000 PSI HIGH I30 MIN. -ATP FROM WTL RICH BURNETT 04:00 - 10:30 6.50 CASING P INTI PJSM,PERFORM DRILL PIPE MANAGEMENT -RIH W/5"DP IN 25 STAND CYCLES -POOH LAYING DOWN 5"DP 1-DRAIN STACK,R/D 5"SHEAR JT,PULL 5" SLIPS —CLEAN AND CLEAR RIG FLOOR 10:30 - 17:00 6.50 BOPSUR P INTI TEST BOPE PULL WEAR BUSHING,INSTALL TEST PLUG, M/U TIW/DART VALVES,PERFORM BODY TEST -ALL TESTS TO 250 PSI LOW/4,000 PSI HIGH FOR 5 CHARTED MIN W/EXCEPTION OF ANNULAR TESTED TO 250 PSI LOW&3,500 PSI HIGH&MANUAL OPERATED&SUPER CHOKE TESTED TO 250 PSI LOW/2,000 PSI HIGH FOR 5 CHARTED MIN -W/4"TEST JT ANNULAR TEST 2-7/8"X 5-1/2" UPR&2-7/8"X 5-1/2"LPR W/4-1/2"TEST JT TEST 2-7/8"X 5-1/2"UPR& 2-7/8"X 5-1/2"LPR -TEST CHOKE VALVES 1-15,MANUAL OPERATED&SUPER CHOKE,CHOKE&KILL LINE MANUALS&HCR'S -4"VALVE ON KILL LINE,4"TIW#1,4" DART,UPPER&LOWER IBOP -PERFORM ACCUMULATOR DRAWDOWN: ACC:3,000 PSI,MANIF:1,500 PSI,ACC:1,700 PSI AFTER ALL FUNCTION ON BOTTLES,30 SEC FOR 200 PSI BUILD W/1 ELECTRIC PUMP.154 SEC TO BUILD FULL SYSTEM PRESSURE W/2 ELECTRIC&2 AIR PUMPS,6 BTL.AVE=2150 PSI. -CLOSING TIMES: ANNULAR=20 SEC.UPR=17 SEC.BLIND/ SHEARS=16 SEC.LPR=17 SEC.CHOKE HCR=2 SEC.KILL HCR=2 SEC. -PLANNING MEETING FOR PRODUCTION HOLE TESTING AND DRLG. 17:00 - 18:00 1.00 BOPSUR P INTI R/D TEST EQUIP,DRAIN STACK,PULL TEST PLUG,INSTALL WEAR BUSHING,B/D CHOKE, KILL,CHOKE MANIFOLD AND REALIGN 18:00 - 19:30 1.50 DRILL P INTI C/O SAVE SUB T/4"XT-39 Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 26 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual®®90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth ' Phase Description of Operations (hr) (usft) 19:30 - 22:30 3.00 DRILL P INTI PIPE MGMT,RIH W/4"DBLS&RACK BACK TOTAL OF 12 STANDS PICK UP SLB TOOLS TO RIG FLOOR 22:30 - 00:00 1.50 DRILL P INTI PJSM,PU/MU BHA#6 1/2/2014 00:00 - 01:30 1.50 DRILL P INTI CONT MU BHA#6 BUILD ASSEMBLY TO 187' 01:30 - 04:00 2.50 DRILL P j INTI RIH W/BHA#6,PICKING UP SINGLES AND i DOUBLES 4"DP TO 1,500" 04:00 - 04:30 0.50 DRILL P INTI SHALLOW HOLE TEST MWD @ 1500'W/212 GPM,970 PS -BLOW DOWN TDS 04:30 - 16:30 12.00 DRILL P INTI CONT RIH PICKING UP SINGLES AND DOUBLES TO 11,456'MD -TAG UP LANDING COLLAR @ 11,456'MD • 16:30 - 19:00 2.50 DRILL P INTI DISPLACE WELL OVER TO 8.6 PPG POWER PRO MUD -PUMP 30 BBLS 11PPG HI VIS SPACER PUMP 20 BBL WATER -CHANGE OVER WITH 475 BBL 8.6 PPG POWER PRO MUD 19:00 - 19:30 0.50 DRILL P INTI PERFORM NEGATIVE TEST WITH 8.6 POWER PRO -VISUAL MONITOR WELL BORE FOR 30 MINUTES,FLUID COLUMN STATIC -ATP BY WfL RICH BURNETT 19:30 21:00 1.50 DRILL - P INT1 DRILL OUT SHOE TRACK -LDG COLLAR @ 11,456', FLT COLLAR @ .11,498',SHOE @ 11,535' I-253 GPM,2594 PSI I-40 RPM,5/6K TQ 21:00 - 21:30 0.50 DRILL P INTI DRILL 6 1/8"PROD HOLE F/11,535'MD TO 11,555'MD(TVD 8914') -10K WOB -40 RPM,6K TQ -253 GPM,1450 PSI 21:30 - 23:30 2.00 DRILL P INTI I RECIPROCATE PIPE AND CBU -253 GPM,1343 PSI GEO CONFIRM 80%FM IN BOTTOMS UP SAMPLE -MONITOR WELL,STATIC 23:30 - 00:00 0.50 DRILL P INTI RIG UP TO PERFORM FIT 1/3/2014 00:00 - 01:00 1.00 DRILL P INTI PERFORM SUCCESSFUL FIT TO 11.5 EMW 1,350 PSI W/8.6 PPG MUD WT -11,555 MD/TVD 8914' - ATP GIVEN BY ODE GARRET STAUDINGER 01:00 - 02:30 1.50 DRILL P PROD1 CIRCULATE 40 BBL 12%STEEL LUBE PILL SURFACE TO SURFACE -253 GPM,1325 PSI -SIMOPS,MIX 80 BBL40#/BBL LCM PILL TO HOLD IN PILL PIT 02:30 - 05:00 2.50 DRILL P PROW DIRECTIONAL DRILL 61/8"PRODUCTION HOLE BUILD SECTION -F/11,555'MD TO 11,599'MD -20K WOB,100%SLIDE -250 GPM,1575 PSI Printed 2/10/2014 10:09:O5AM North America-ALASKA-BP Page 27 of 54 Operation Summary Report Common Well Name:V-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) 1,1 Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:00 - 06:00 1.00 DRILL N DPRB 11599.00 PROD1 CLEAN UP 7"CSG SHOE -LOSE 150 PSI DIFFERENTIAL PRESSURE -PU 15,ATTEMPT GET BACK TO BOTTOM. NO SUCCESS -RACK BACK ONE STAND,WORK THROUGH SHOE 3X -PU STD AND GO BACK TO BOTTOM AND RESUME DRILLING. 06:00 - 12:00 6.00 DRILL rt P PROD1 DIR DRILL6-1/8"PRODUCTION HOLE -F/11,599'MD TO 11756'MD/9,037'TVD -250 GPM,1430 PSI -20K WOB,0 TQ(100%SLIDE) AST=6.64 HRS,TOTAL BIT HRS =7.08 HRS -JAR HRS=7.08 MW 8.6 IN/8.6OUT -MUD LOSS FOR TOUR=0 BBLS 12:00 - 21:30 9.50 DRILL P PROD1 1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/11756'MD TO 11,947'/9,051'ND -250 GPM,1250 PSI -20K WOB, 20 RPM PU 209K,SO 160K,ROT 181K 21:30 - 22:00 0.50 DRILL N DPRB 11,947.00 PROD1 CIRC AND RECIPROCATE PIPE WHILE DISCUSS DOG LEG SEVERITY WITH ODE, SLB DIR. 22:00 - 00:00 2.00 DRILL P PROD1 I DIR DRILL 6-1/8"PRODUCTION HOLE -F/11,947'MD TO 12,042'MD/9,026'TVD -250 GPM,1540 PSI ON,1360 PSI OFF 1-20K WOB,20 RPM -7K TQ ON,4K OFF -AST=4.57 HRS,ART=.52 HRS,ADT=5.09 -TOTAL BIT HRS =12.17 HRS -JAR HRS=7.08 MW8.6IN/8.6OUT I-SPR 11,993'MD/9052'TVD -#1/#2 MP 20/30 SPM=520/640 PSI -MUD LOSS FOR TOUR=0 BBLS 1/4/2014 00:00 - 11:00 11.00 DRILL P PROD1 CONT DIR DRILL 6-1/8"PRODUCTION HOLE -F/12,042'MD TO 12,350'/8955'ND -250 GPM,1700 PSI -24%FO 1-17K WOB, 20 RPM,7-8K TQ -OFF BTM PSI=1480 -PU 208K,SO 155K,ROT 180K,4K TQ -AST=2.5,ART=4.28,ADT=6.78 -TOTAL BIT HRS=18.36,TOTAL JAR HRS= 18.36 11:00 - 12:00 1.00 DRILL P PROD1 CBU W/ROT&RECIP FROM 12,262'MD TO 12,350'MD W/MW @ 8.6 PPG -250 GPM,1480 PSI,24%FO,40 RPM,5-6K TQ -MUD LOSS FOR TOUR= 24 BBLS 12:00 - 13:00 1.00 DRILL P PROD1 CONT.CBU W/RPT&RECIP FROM 12,262'MD TO 12,350'MD W/MW(818.6 PPG '-250 GPM,1480 PSI,23%FO,40 RPM,3-4K TQ -TOTAL STROKES PUMPED=7400 -PU=200K,SO=156K Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 28 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C.(13,544;400.00) 1_ Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWI 500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) _ Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:00 - 17:00 4.00 DRILL P PROD1 MONITOR WELL FOR 10 MIN-STATIC. POOH ON ELEVATORS FROM 12,350'MD TO 12,060'MD-NO SWABBING&TAKING PROPER FLUID FILL. PULLED TIGHT©12,060'MD AND PUMPED OUT TO 11,894'MD I-253 GPM,1,435 PSI AT 11,894'MD PULLED TO 275K, BACKREAMED FROM 11,894'MD TO 11,645' MD -20 RPM,6-14K TQ,253 GPM,1,435 PSI,23% FO. MONITOR WELL VIA PITS 2&3-WELL TAKING PROPER FLUID FILL. 17:00 - 17:30 0.50 DRILL P PROD1 LOG AS PER RIG GEO FROM 11,417'MD TO 11,333'MD -350 FEET/HR,253 GPM,1,400 PSI.22%FO — ------- -- 17 30 - 18:00 0.50 DRILL P PROD1 MONITOR WELL FOR 10 MIN-STATIC.PUMP 25 BBL 9.9 PPG DRY JOB. 18:00 - 23:00 5.00 DRILL P PROD1 POOH F/11,333'TO 75'W/BHA#6 23:00 - 00:00 1.00 DRILL P PROD1 PJSM,MONTIOR HOLE. -POOH W/BHA#6,LD BIT AND BHA. -BIT GRADE 2-2-BT-G-E-1-BT-TD -MUD LOSS FOR TOUR=6 BBL 1/5/2014 00:00 - 01:00 1.00 DRILL P PROD1 I CONT LAY DOWN BHA#6 AS PER SLB DD 01:00 - 02:00 1.00 DRILL P PROD1 CLEAN/CLEAR FLOOR. -MOBILIZE RSA BHA#7 02:00 - 03:00 1.00 DRILL P PROD1 MU BIT,POWER DRIVE. -MU TDS SURFACE TEST POWER DRIVE W/ 152 GPM,330 PSI. 03:00 - 04:00 1.00 DRILL P PROD1 CONT PU RSA BHA TO 83' _ -PJSM,SLB TECHS LOAD RA SOURCE 04:00 - 05:00 1.00 DRILL P PROD1 I CONT RIH F/83'TO 467'W/FLEX COLLARS, JARS,HWDP. -XO SLIP INSERTS -PERFORM WEEKLY BOPE FUNCTION TEST -CLOSING TIMES,ANNULAR=23 SEC, UPRS=18 SEC EA,LPR=18 SEC, -HCR/KILL=2 SEC,BLINDS=19 SEC (FUNCTIONED WHILE OUT OF HOLE) 05:00 - 06:00 1.00 DRILL P PROD1 RIH F/467'TO 1,543' - PU DOUBLES FROM PIPE SHED. 06:00 - 06:30 0.50 DRILL P PROD1 SHALLOW PULSE TEST MWD -203 GPM,880 PSI 06:30 - 08:00 1.50 DRILL P PROD1 RIH F/1,543'10 3,564' - PU DOUBLES FROM PIPE SHED 08:00 - 08:30 0.50 DRILL N DFAL 3,584.00 PROD1 I BREAK CIRCULATION TO VERIFY MWD DETECTION -NO SIGNAL,TOOL SHUT DOWN 240 GPM 08:30 - 10:00 1.50 DRILL N DFAL 3,564.00 PROD1 POOH F/3,564'TO 1,506' 10:00 - 10:30 0.50 DRILL N DFAL 3,564.00 PROD1 MONITOR WELL PRIOR TO NON-SHEARABLESIN STACK -PJSM ON BHA AND RA SOURCE HANDLING -WELL CONTROL DRILL(D1) CRT=3.30 10:30 - 11:00 0.50 , DRILL N DFAL 3,564.00 PROD1 POOH W/BHA F/1,506'TO 75' Printed 2/10/2014 10.09:O5AM North America-ALASKA-BP Page 29 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11:00 - 12:00 1.00 DRILL N DFAL 3,564.00 PROD1 UNLOAD AND SECURE RA SOURCE -LD WELL COMMANDER,ADN,IMPULSE. -VISUALLY INSPECT BIT AND RSS.OK -MONTIOR WELL W/TRIP TANK 12:00 - 13:30 1.50 DRILL N DFAL 3,564.00 PROD1 DPI INSPECTION OF PIN/BOX ON :REPLACEMENT IMPULSE TOOL 13:30 - 15:00 1.50 DRILL N DFAL 3,564.00 PROD1 MU BHA#8 TO 467' -PU IMPULSE,ADN,WELL COMANDER -LOAD RA SOURCE 15:00 - 15:30 0.50 DRILL N DFAL 3,564.00 PROD1 RIH F/467'TO 1,511' -SHALLOW HOLE PULSE TEST MWD -200 GPM=675 PSI -250 GPM=1000 PSI 15:30 - 17:00 1.50 DRILL N DFAL 3,564.00 PROD1 RIH F/1,511'TO 3,564' 17:00 - 22:30 5.50 DRILL P PROD1 RIH F/6,355'TO 11,475' 22:30 - 00:00 1.50 DRILL P PROD1 PJSM,CUT/SLIP DRILLING LINE -MONITOR WELL ON TRIP TANK -MUD LOSS FOR TOUR=11 BBL 1/6/2014 00:00 - 03:00 3.00 DRILL P PROD1 CONT CUT/SLIP 600'OF DRILLING LINE -CALIBRATE BLOCK HEIGHT.AMPHION,SLB, TOTCO. OBTAIN SPRS 03:00 - 04:00 1.00 DRILL P PROD1 RIH W/RSS F/11,475'TO 11,932' I-OBTAIN CHECK SURVEYS @ 11,674',11,706', 11,737' - 04:00 - 05:00 1.00 DRILL P PROD1 BEGAN TAKE WT,25K SO 4 11,932' -MU TDS AND BEGIN WASH DOWN F/11,932' TO 11,947' -250 GPM,1650 PSI 05:00 - 05:30 0.50 DRILL P PROD1 CONT RIH F/11,947'TO 12,230' 05:30 - 06:00 0.50 DRILL P PROD1 MU TDS AND WASH TO F/12,230'TO 12,330' -250 GPM,1550 PSI OBTAIN SURVEY AND SPRS 06:00 - 12:00 6.00 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/12,350'MD TO 12,706'MD/8903'TVD -260 GPM,1790 PSI ON,1770 PSI OFF BTM - 8K WOB, 140 RPM, - 9KTQON,5KTQOFF -PU 195K,SO 155K,ROT 167K, - ART=3.48,ADT=3.48 -TOTAL BIT HRS=3.48,TOTAL JAR HRS= 21.84 -LOSS OF RETURNS®12,610'MD, -DYNAMIC LOSS RATE 120 BBUHR,PUMP 40 BBL 40#LCM PILL#1 -MUD LOSS FOR TOUR=240 BBLS FINGER PRINT CONNECTIONS Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 30 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 23:00 11.00 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/12,706'MD TO 13,371'MD/8887'TVD -260 GPM,1640 PSI ON,1565 PSI OFF BTM -8K WOB, 140 RPM, - 8K TQ ON,6K TQ OFF -PU 195K,SO 155K,ROT 167K, - ART=5.92,ADT=5.92 -TOTAL BIT HRS=9.4,TOTAL JAR HRS= 27.76 -DYNAMIC LOSS RATE @ 12,895'=100 BBL/HR,PUMP 40 BBL 40#LCM PILL#2 -DYNAMIC LOSS RATE @ 13,020=100 BBL/HR,PUMP 80 BBL 40#BBL LCM PILL#3, LOSSES REDUCED TO 50 BBL/HR -DYNAMIC LOSS RATE @ 13,200'=75 BBL/HR,PUMP 40 BBL 40#LCM PILL#4,LOSS RATE 50 BBL/HR -FINGER PRINT CONNECTIONS 23:00 - 00:00 1.00 DRILL N DPRB 12,350.00 PROD1 FLOW CHECK WELL PRIOR TO CONNECTION. -WELL FLOWED 6 BBLS MORE THAN NORMAL FLOW BACK -SPACE OUT AND SHUT IN WITH ANNULAR AND PERFORM EXHALE TEST 0 SIDPP,0 SICP ON SHUT IN,MONTIOR 15 MIN,NO PRESSURE BUILD UP. -OPEN CHOKE AND FLOW BACK TO TRIP TANK THROUGH GAS BUSTER. -ZERO FLOW RETURNED,MONITOR FOR 15 MIN,NO FLOW. -ATP RECIEVED FROM WTL RICH BURNETT. -OPEN ANNULAR,CHECK FLUID LEVEL BREAK CIRC,7 BBLS TO FILL AND ESTABLISH CIRCULATION. -MUD LOSS FOR TOUR=635 BBLS 1/7/2014 00:00 - 11:00 11.00 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/13,371'MD TO 14,103'/8870'TVD -260 GPM,1740 PSI ON,1565 PSI OFF BTM -8K WOB, 140 RPM, - 8K TQ ON,6K TQ OFF -PU 195K,SO 155K,ROT 167K, -PUMP 40 BBL 40#/BBL LCM PILL#5 AS MAINTENANCE PILL@ 13,570'MD -DYNAMIC LOSS=30 BBL AVG LOSS HR F/ 00:00 TO 06:00 -FINGERPRINT EACH CONNECTION -NOTED A GAMMA RAY SHIFT AT 14,050' INDICATING CROSSING A FAULT. -TORQUE INCREASED AND PACKING OFF. TIGHT HOLE. -SAMPLES CONFIRM KINGAK SHALE. 11:00 - 15:00 4.00 DRILL N DPRB 14,040.00 PROD1 WORK TIGHT HOLE -HOLE PACKING OFF AND TORQUE SPIKING. -WORK PIPE.UNABLE TO RECIPROCATE. -ALTERING PUMP RATES AND ROTATION. -PIPE BECAME FREE AT 14,039'BUT STILL TIGHT HOLE -CONTINUE WORKING PIPE FROM 14,103' AT 60 RPM AND CIRC AT 5 BPM -FLUID LOST TO WELL AT NOON 382 BBL Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 31 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:00 17:00 2.00 DRILL N DPRB 14,040.00 PROD1 BACK REAM -BACK REAM FROM 14,039'ROTATE AT 60 RPM,CIRC AT 1.5 BPM TO 5 BPM TO WITH 1529 PSI AND 21%RETURN -CONSULT WITH ODE AND WELL TEAM LEAD. DECISION MADE TO MAKE AN OPEN HOLE SIDETRACK - BACK REAM TO SIDE TRACK DEPTH AT 13,276' 17:00 - 18:30 1.50 DRILL N DPRB 13,276.00 PROD1 SIDE TRACK -SET POWERDRIVE AT 180 DEG TOOL FACE AT 100%. -FLOW RATE 265 GPM ROTATE AT 150 RPM -TRENCH LOW SIDE AT 100%FROM 13,300' -PULL BACK TO 13,290',13,280'AND 13,270' FOR 30 MINUTES AT EACH DEPTH 18:30 - 19:00 0.50 DRILL N DPRB 13,300.00 PROD1 SIDE TRACK -RIH TO 13,300'TIME DRILL -ROTATE AT 13,300 FOR 30 MINUTES ROTATING AT 150 RPM PER SIDETRACK PLAN 19:00 - 22:00 3.00 DRILL N DPRB 13,307.00 PROD1 SIDE TRACK-TIME DRILL -TIME DRILL 2 FT PER 2 HOURS 265 GPM WITH 1780 PSI -DRILL TO 13,307'. ERRONEOUS INCLINATION DUE TO TOOL VIBRATION PULL OFF BOTTOM. -LOSS RATE AT 20 BPH PUMP AROUND 40 BBL LCM PILL. 22:00 - 23:00 1.00 DRILL N DPRB 13,307.00 PROD1 TROUBLE SHOOT MWD TOOLS -TAKE INCLINATION CHECK SHOTS AND RUN DIAGNOSTICS ON TOOLS -TOOLS FUNCTIONING OK 23:00 - 00:00 1.00 DRILL N DPRB 13,368.00 PROD1 SIDETRACK-TIME DRILL -TIME DRILL 2 FT PER HOUR -DRILL TO 13,307'. 1/8/2014 00:00 - 07:00 7.00 DRILL N DPRB 13,406.00 PROD1 TIME DRILL-SIDETRACK FROM 13,307'TO 13,406' -TIME DRILL AT 2'PER HOUR TO 13,307'MD -INCREASE ROP TO 8'PER HOUR -POWERDRIVE SET AT 180 DEGREES AND 100% -100 RPM,5.5 K TQ ON BOTTOM,2-4 K WOB AT 266GPM,1820PSI -LOSSES 20 BPH 07:00 - 08:30 1.50 DRILL N DPRB 13,371.00 PROD1 CIRCULATE FOR SURVEYS -OBTAIN SURVEYS TO CONFIRM NEW HOLE. -RECORD SPR ON BOTH PUMPS. -INACCURATE INFORMATION FROM MWD *NOTIFIED AOGCC FOR UP COMING BOP TEST,07:15 AM 1-8-14 TEST WITNESS WAIVED BY JEFF TURKINGTON AT 08:05 AM 08:30 - 09:00 0.50 DRILL N DPRB 13,406.00 PROD1 MONITOR WELL FOR FLOW. -FINGER PRINT WELL IN 7 MINUTE INCREMENTS -FLOW REDUCED FROM 22 BBL IN 7 MINUTES TO 4.5 BBL IN 7 MINUTES. Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 32 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:00 - 13:30 4.50 DRILL N DPRB 13,406.00 PROD1 SHUT IN WELL FOR EXHALE TEST -CLOSE ANNULUS.MONITOR PRESSURE. -SICP STABILIZED AT 50 PSI AFTER 30 MINUTES. -PERFORM EXHALE TEST.OPEN CHOKE,NO FLOW. -PUMP 7 BBLS TAKING RETURNS THROUGH 'THE CHOKE.(6 BBL TO FILL) -SHUT IN CHOKE.SICP STABILIZE AT 50 PSI AFTER 15 MINUTES. -PERFORM EXHALE TEST IN 10 MINUTES INCREMENTS -AFTER 30 MINUTES TOTAL OF 2.2 BBL RETURN. -AFTER AN ADDITIONAL 30 MINUTES TOTAL OF 1.9 BBL RETURN VERIFY NO PRESSURE ON CASING OR DRILL PIPE. -ATP FROM WTL AND ODE TO OPEN WELL AND RESUME TRIP. OPEN ANNULAR,NO FLOW. AOGCC BOP USAGE FORM COMPLETED. 13:30 - 15:30 2.00 DRILL N DFAL 13,406.00 PROD1 POH TO 12,425' POH ON ELEVATOR,WELL SWABBING. -CONNECT TOP DRIVE AND POH WHILE PUMPING. -CIRCULATE AT 1.5 BPM WITH 450 PSI -LOSSES AT 3.5 BBL PER STAND • 15:30 - 18:00 2.50 DRILL N DFAL 13,406.00 PROD1 POH TO 7"CASING SHOE. -ATTEMPT TO TURN MWD FOR MAD PASS WITH NO SUCCESS AT 12,425' -PUMP OUT OF HOLE AT 1.5 BPM WITH 440 PSI. 18:00 - 18:30 0.50 DRILL N DFAL 13,406.00 PROD1 MONTOR WELL AT CASING SHOE-STATIC -SERVICE RIG. 18:30 - 00:00 5.50 DRILL N DFAL 13,406.00 PROD1 POH -POH 3 STANDS ON ELEVATORS WELL SWABBING -PUMP AT 2 BPM WHILE POH TO 9000' -POH AT 40 FPM AND PUMP AT 1.5 BPM TO REDUCE SWABBING. 1/9/2014 00:00 - 06:30 6.50 DRILL N DFAL 13,406.00 PROD1 PUMP OUT OF HOLE FROM 8435'MD TO 4620' DUE TO SWABBING -PUMP AT 1.5BPM,250 PSI -PULL AT 40FPM -CHECK SWABBING BY PULLING ON ELEVATORS EVERY 5-10 STNDS 06:30 - 10:00 3.50 DRILL N DFAL 13,406.00 PROD1 POH ON ELEVATORS FROM 4620'TO BHA -WELL NOT SWABBING WHILE POH,TAKING PROPER FILL -MONITOR WELL FOR 10 MINUTES BEFORE RESUMING POH -POH TO BHA. MONITOR WELL PRIOR TO PULLING BHA ACROSS BOP. -CHANGE SLIP INSERTS. 10:00 - 10:30 0.50 DRILL N DFAL 13,406.00 PROD1 PJSM WITH SLB MWD ENGINEER ON UNLOADING RA SOURCE. UNLOAD AND SECURE RA SOURCE Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 33 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud DateTme:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UW:500292058700 Active datum:Y-10B Actual i 90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 10:30 - 11:30 1.00 DRILL N DFAL 13,406.00 PROD1 LAY DOWN BHA LAY DOWN BHA AS DIRECTED BY DD -THE BIT HAD SOME CLAY IN THE WATER COURSE BUT NOT BALLED. BIT GRADED AS 1-1-CT-G-X-I-WT-DTF. -FLUSH RSS WITH WATER. -LOOSE WIRE WAS FOUND BETWEEN THE ADN AND THE IMPULSE TOOL. 11:30 - 12:00 0.50 DRILL N DFAL 13,406.00 PROD1 CLEAN AND CLEAR RIG FLOOR -BLOW DOWN TOP DRIVE -REMOVE RA SOURCE AND TOOLS FROM RIG FLOOR. 12:00 - 13:00 1.00 DRILL P 13,406.00 PROD1 RIG UP TO TEST BOPE I-DRAIN STACK PULL WEAR RING AND SET TEST PLUG. -RIG UP HOLE FILL LINE TO IA TO MONITOR WELL DURING TEST 13:00 - 18:00 5.00 DRILL P 13,406.00 PROD1 TEST BOP -TEST BOP TO 250 PSI AND 4000 PSI FOR 5 MINUTES EACH ANNULAR TESTED TO 250 PSI AND 3500 PSI WITH 4"TEST JOINT -TESTED WITH 4"AND 4.5"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED CHARTS TEST WITNESS WAIVED BY AOGCC REP JEFF TURKINGTON 18:00 - 19:00 1.00 DRILL P PROD1 RIG DOWN TESTING EQUIPMENT -PULL TEST PLUG.INSTALL 8.875"WEAR BUSHING,BLOW DOWN LINES. 19:00 - 20:30 1.50 DRILL P PROD1 CHANGE SAVER SUB ON TOP DRIVE -CHANGE XT-39 SAVER SUB. 20:30 - 22:30 2.00 DRILL N DFAL 13,307.00 PROD1 MAKE UP RSS DRILLING BHA. -MAKE UP RE RUN BIT TO POWER DRIVE '(RSS) -MAKE UP MWD AND ADN. -LOAD RA SOURSE AND REMAINDER OF BHA. 22:30 - 00:00 1.50 DRILL N DFAL 13,307.00 PROD1 RIH WITH RSS BHA -RIH TO 1505'. CONDUCT SHALLOW TEST ON MWD. -PUMP 200 GPM WITH 830 PSI 22%FLOW LINE RETURNS -RIH 1/10/2014 00:00 - 01:00 1.00 DRILL N DFAL 13,406.00 PROD1 SHALLOWTESTMWDTOOLS -TROUBLE SHOOT MWD TOOLS -RE-CYCLE PUMPS AND PULSE TEST 01:00 - 08:30 7.50 DRILL N DFAL 13,406.00 PROD1 RIH FROM 1505'MD TO 11,473'MD -MONITOR DISPLACEMENTS VIA TRIP TANK -FILL PIPE EVERY 2000' -NO HANGUPS OR ADDITIONAL DRAG AT 7" LINER TOP -SLOWED RUNNING SPEED IN 7"LINER TO REDUCE SURGE 08:30 - 10:00 1.50 DRILL N DFAL 13,406.00 PROD1 CUT AND SLIP DRILLING LINE -60'OF DRILLING LINE -CALIBRATE SLB,AMPHION AND TOTCO SYSTEMS 10:00 - 10:30 0.50 DRILL P PROD1 SERVICE TOP DRIVE AND BLOCKS Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 34 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actuala@90.54usft(above Mean Sea Level) Date I From-To i Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 10:30 - 11:00 0.50 DRILL N DFAL 13,406.00 PROD1 OBTAIN DRILLING PARAMETERS AT 7"SHOE -200 GPM,1320 PSI.20%FO -PU WEIGHT=192 K,SO WEIGHT=164 K, ROT WEIGHT=178 K,5 K TORQUE 11:00 - 14:00 3.00 DRILL N DFAL ! 13,406.00 PROD1 RIH FROM 11,473'MD TO 13,300'MD -OBTAIN SURVEYS AT:11,673'MD,11,693'MD, 11,705'MD,11,736'MD -WORK THROUGH BRIDGE/OBSTRUCTION AT 12,471'MD. 14:00 - 15:00 1.00 DRILL N DFAL ; 13,406.00 PROD1 1 LOG FROM 13,300'MD TO 13,406'MD PER SLB MWD -200 GPM,1300 PSI,22%FO 15:00 - 00-00 9.00 DRILL N DPRB PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 13,406'MD TO 14,129'MD.(8896'TVD) -257 GPM,2000 PSI ON,1990 PSI OFF -130 RPM,10 K TORQUE ON,6 K TORQUE OFF -PU WEIGHT=190 K,SO WEIGHT=152 K, ROT=167K SURVEY EVERY-90 FT -ACTUAL ROTATE TIME=5.92 HRS -ACTUAL SLIDE TIME=0 HRS -BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.6 PPG IN,8.6 PPG OUT -PUMPED 2 EA 40 PPB LCM PILLS 1*CROSSED FAULT AT 14'065',LOST CIRCULATION.PUMP 40 BBL LCM PILL(#4) -CONTINUE DRILLING WHILE LOSSES IMPROVE FROM 120 BPH TO 25 BPH. -DRILL AHEAD AND CROSS ANOTHER FAULT AT 14,122',LOST RETURNS.PUMP 40 BBL 'LCM PILL(#5) -CONTINUE DRILLING WHILE LOSSES IMPROVE FROM 120 BPH TO 25 BPH *DRILL ACROSS FAULT INTO THE SHIBLIK FORMATION.TURN RSS UP TO MAX BUILD TO LOOK FOR THE BOTTOM OF THE SAG RIVER FORMATION. 1/11/2014 00.00 - 01:00 1.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 14,129'MD TO 14,181'MD.(8891'ND) -258 GPM,2030 PSI ON,1920 PSI OFF -130 RPM,9 K TORQUE ON,6 K TORQUE OFF -PU WEIGHT=189 K,SO WEIGHT=153 K, ROT=167K -SURVEY EVERY 90 FT ACTUAL ROTATE TIME=1 HRS -ACTUAL SLIDE TIME=0 HRS -BACK REAM EACH STAND PRIOR TO CONNECTIONS MUD WEIGHT:8.6 PPG IN,8.6 PPG OUT MAX LOSS WHILE DRILLING 140 BPH SLOWLY REDUCING 01 00 - 02:00 1.00 DRILL P PROD1 PUMP 40 PPB LCM PILL(#6) - EVALUATE LOGS,CONSULT WITH DD AND TOWN GEO. -CIRCULATE AND WORK PIPE' -LOSSES SLOWED FROM 140 BPH TO 60 BPH -260 GPM, 1900 PSI J 1-130 RPM,9 K TO ON,5 K TQ OFF -UP 189 K,SO 153 K Printed 2/10/2014 10 09:05AM North America-ALASKA-BP Page 35 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) I Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544.400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 02:00 - 03:30 1.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 114,181'MD TO 14,278'MD.(8884'TVD) -258 GPM,2030 PSI ON,1920 PSI OFF -130 RPM,9 K TORQUE ON,6 K TORQUE OFF -UP WEIGHT=189 K,SO WEIGHT=153 K, ROT=167 K -SURVEY EVERY 90 FT -ACTUAL ROTATE TIME=2.5 HRS -ACTUAL SLIDE TIME=0 HRS BACK REAM EACH STAND PRIOR TO CONNECTIONS I-MUD WEIGHT:8.6 PPG IN,8.6 PPG OUT -MAX LOSS WHILE DRILLING 60 BPH SLOWLY REDUCING 03'30 - 04:45 1.25 DRILL P PROD1 CONSULT WITH TOWN GEO.DISCUSS OPTIONS WITH DD CIRCULATE WHILE ROTATING AND I RECIPROCATING FROM 14,226'MD TO 14,278' MD 257 GPM,1900 PSI -130 RPM,5-6 K TORQUE -DYNAMIC LOSS RATE=50 BPH 0445 - 06:00 1.25 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 14,278'MO TO 14,369'MD.(8871'TVD) -257 GPM,1960 PSI ON,1930 PSI OFF -130 RPM,8 K TORQUE ON,5 K TORQUE OFF -UP WEIGHT=191 K,SO WEIGHT=152 K, !ROT=171K -SURVEY EVERY 90 FT -ACTUAL ROTATE TIME=3.75 HRS -ACTUAL SLIDE TIME=0 HRS -BACK REAM EACH STAND PRIOR TO i 'CONNECTIONS -MUD WEIGHT:8.6 PPG IN,8.6 PPG OUT 06 00 - 10:00 4.00 DRILL P PROD1 ENCOUNTERED TIGHT HOLE AT 14,369'MD. -3 K INCREASE IN TORQUE,200 PSI INCREASE -UP OFF BOTTOM AND BACK REAM TO 14,322'MD. -RACK BACK STAND AND BACK REAM FROM 14,368'MD TO 14,037'MD -63 GPM,430 PSI I-40 RPM,5-7 K TORQUE STAGED PUMPS UP -126 GPM,710 PSI KINGAK FORMATION CONFIRMED IN SAMPLES. PUMP OUT OF HOLE FROM 14,037'MD TO 13,463'MD. 10:00 - 10:30 0.50 DRILL P PROD1 CIRCULATE WHILE ROTATING AND RECIPROCATING FROM 13,375'MD TO 13,463' MD. -164 GPM,950 PSI -50 RPM,5-6 K TORQUE 1030 - 11:00 0.50 DRILL P PROD1 RIH FROM 13,463'MD TO 14,034'MD. -MONITOR DISPLACEMENT VIA TRIP TANK 11:00 - 13:00 2.00 DRILL P PROD1 PUMP 40 BBL,40 PPB HI-VIS LCM PILL#6 -SPOT PILL FROM 14,034'MD TO 13,372'MD -63 GPM,410 PSI -PULLED AT 40 FEET/MIN Printed 2/10/2014 10 09'05AM North America-ALASKA-BP Page 36 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:00 - 14:30 1.50 DRILL N DPRB 13,410.00 PROD1 TROUGHING 6-1/8"PRODUCTION HOLE SIDETRACK FROM 13,380 TO 13,410'MD -265 GPM,2020 PSI -TOOL FACE 160 DEG LEFT -120-150 RPM,5 K TORQUE -STROKING PIPE 10'FOR 30 MIN,20'FOR 30 MIN,30'FOR 30 MIN PUMP 40 BBL,40 PPB HI-VIS LCM PILL#7 14:30 - 15:00 0.50 DRILL N DPRB 13,410.00 j PROD1 SIDETRACK WELL AT 13,410'MD • -BIT WAS PLACED AT13,410'MDFOR 30MIN WHILE ROTATING TO FORM KICK OFF LEDGE -265 GPM,2070 PSI -160 RPM,5 K TORQUE - 15:00 - 21:00 6.00 DRILL N DPRB 13,410.00 PROD1 TIME DRILL 6-1/8"PRODUCTION HOLE SIDETRACK FROM 13,410'MD. -TIME DRILL 2 FT/HR FOR 2 HOURS -TIME DRILL 4 FT/HR FOR 2 HOURS -TIME DRILL 8 FT/HR FOR 1 HOUR -TIME DRILL 16 FT/HR FOR 1 HOUR -265 GPM,2070 PSI -100 RPM,4 K TORQUE -NOTED THE WOB DROP OFF FROM MAX OF 8 K TO 2 K. - LWD AND MWD TOOLS RECEIVING SHOCK INDICATOR OF LEVELS 1,2 AND 3.DEPTH 13,423' •INCLINATION IS TRACKING ORIGINAL HOLE INDICATING THE WELL IS NOT SIDETRACKED.' _ 21:00 - 21:30 0.50 DRILL N DPRB 13,410.00 PROD1 CONSULT WITH SLB DD SUPERVISOR AND ODE -DECISION MADE TO MAKE ANOTHER ATTEMPT TO SIDE TRACK WHILE MAINTAINING SHOCK LEVELS AS LOW AS POSSIBLE AND RSS TURNED DOWN 180 DEG j 100%DOWN. 21 30 - 00:00 2.50 DRILL N DPRB 13,410.00 PROD1 MAKE SECOND ATTEMPT TO SIDETRACK WITH NEW PARAMETERS AND DEPTH. TROUGH LOW SIDE 100%FOR 1.5 HRS FROM 13,430'UP TO 13,400'IN 10' INCREMENTS -PLACE BIT AT 13,430'AND ROTATE FOR 30 'MINUTES AT 100 RPM -TIME DRILL 6-1/8"PRODUCTION HOLE SIDETRACK FROM 13,430'MD. TIME DRILL 1 FT/HR FOR 2 HOURS -TIME DRILL 2 FT/HR FOR 3 HOURS -265 GPM,2070 PSI -100 RPM,4 K TORQUE -FLUID LOSS AT 10 BPH Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 37 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-1 OB Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 1/12/2014 00:00 - 12:00 12.00 DRILL N DPRB 13,410.00 PROD1 SECOND ATTEMPT TO SIDETRACK WITH NEW PARAMETERS AND DEPTH. -TIME DRILL 6-1/8"PRODUCTION HOLE SIDETRACK FROM 13,430'MD to 13,464'MD (8,893'TVD). -CONTINUE TIME DRILL 2 FT/HR FOR 3 HOURS -TIME DRILL 4 FT/HR FOR 2 HOURS -TIME DRILL 8 FT/HR FOR 1 HOUR -TIME DRILL 16 FT/HR FOR 1 HOUR -265 GPM,2110 PSI -120 RPM,5 K TORQUE -FLUID LOSS=15 BPH SUCCESSFUL SIDETRACK CONFIRMED BY DD. 12:00 - 18:00 6.00 DRILL N DPRB PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 13,464'MD TO 13,844'MD.(8895'TVD) -226 GPM,2199 PSI ON,2053 PSI OFF -120 RPM,9.3 K TORQUE ON,5 K TORQUE OFF -UP WEIGHT=190 K,SO WEIGHT=151 K, ROT=166 K -SURVEY EVERY 90 FT -BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.6 PPG IN,8.6 PPG OUT -MAX LOSS WHILE DRILLING 25 BPH 18:00 - 22:30 4.50 DRILL N DPRB PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 13,844'MD TO 14,127'MD.(8893'TVD) CROSS FAULT#5 AT 14,035' (21:20 HRS) CROSS FAULT#BAT 14,072' (21:55 HRS) CROSS FAULT#C AT 14,098' (22:25 HRS) -261 GPM,2061 PSI ON,2035 PSI OFF -120 RPM,9 K TORQUE ON,5 K TORQUE OFF -UP WEIGHT=190 K,SO WEIGHT=141 K, ROT=170 K -SURVEY EVERY 90 FT -ACTUAL ROTATE TIME=6.74 HRS -ACTUAL SLIDE TIME=0 HRS -BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.6 PPG IN,8.6 PPG OUT -MAX LOSS WHILE DRILLING 25 BPH ENCOUNTER HIGH TORQUE AND PRESSURE SPIKE WHEN BACK REAMING FOR A CONNECTION. 22:30 - 00:00 1.50 DRILL N DPRB PROD1 STOP DRILLING.CIRCULATE BOTTOM UP FOR SAMPLE -GEO VARIFY LOGS AND CONSULT WITH TOWN GEO -WHILE CIRCULATING CONNECTION GAS SEEN AT SURFACE ON BOTTOMS UP. -GAS FOR 20 MINUTES AND SPIKE AT 2300 UNITS FOR 1 MINUTE.ALSO NOTED OIL ON THE SHAKERS 1/13/2014 00:00 - 02:00 2.00 DRILL N DPRB PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 14,127' MD TO 14,161'MD -262 GPM,2220 PSI ON,2150 PSI OFF -100 RPM,B K TORQUE ON,7 K TORQUE OFF PU=193 K,SO=150 K,ROT=166 K -ACTUAL ROTATE TIME=1.32 HRS Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 38 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs • Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 02:00 - 03:00 1.00 DRILL N DPRB PROD1 BACKREAMING FROM 14,161'MD AND • ENCOUNTER TIGHT HOLE AT 14,156'MD. •-WORK TIGHT HOLE FROM 14,161'MD TO 14,129'MD WITH NO PUMPS OR ROTARY -MAX OVERPULL=30 K -BACKREAM OUT OF HOLE FROM 14,129'MD TO 14,034'MD. -63 GPM,480 PSI -30 RPM,8 K TORQUE RACK BACK STAND 03:00 - 07:30 4.50 DRILL N DPRB PROD1 CIRCULATE AND RECIPROCATE FROM 14,034' MD TO 13947'MD STAGING UP PUMPS AND ROTARY -262 GPM,2200 PSI -120 RPM,7 K TORQUE DD AND GEO WORKING TO EVALUATE LOGS AND DEVELOP PLAN FORWARD 07:30 - 09:00 1.50 DRILL N DPRB PROD1 PUMP 40 BBL,40 PPB HI-VIS LCM PILL#8 -SPOT PILL FROM 14,034'MD TO 13,462'MD -63 GPM,440 PSI '-PULLED AT 40 FEET/MIN 09-00 - 09:30 0.50 DRILL N DPRB PROD1 PU DOUBLE FROM SHED AND PLACE ON TOP OF STAND#137.PU STAND#138 AND RIH TO I _ i 13,550'MD. 09:30 - 12:00 2.50 DRILL N DPRB i 13,550.00 PROD1 I BEGIN TROUGHING 6-1/8"PRODUCTION HOLE SIDETRACK FROM 13,550 TO 13,520'MD AS PER DD -265 GPM,2140 PSI 1-TOOL FACE 180 DEG 100-120 RPM,6 K TORQUE -RECIPROCATE PIPE FROM 13,550'MD TO 13,540'MD FOR 1 HOUR -RECIPROCATE PIPE FROM 13,550'MD TO 13,530'MD FOR 1 HOUR I-RECIPROCATE PIPE FROM 13,550'MD TO 13,520'MD FOR 30 MIN -HOIST 1000'/HOUR,LOWER 500'/HOUR 12:00 - 00:00 12.00 DRILL N DPRB 13,550.00 PROD1 TIME DRILL 6.1/8"PRODUCTION HOLE SIDETRACK FROM 13,550'MD T/13,590'MD -TIME DRILL 1 FT/HR FOR 2 HOURS FROM 13,550'. -TIME DRILL 2 FT/HR FOR 3 HOURS FROM 13,552'. TIME DRILL 4 FT/HR FOR 3 HOURS FROM 13,558'. -TIME DRILL 6 FT/HR FOR 2 HOURS FROM 13,570'. I-TIME DRILL 8 FT/HR FOR 1 HOUR FROM 113,582'. -TIME DRILL 16FT/HR FOR 1 HOUR FROM 13,590'TO 13,606'. -265 GPM,2100 PSI -120 RPM,5.5-6.5K TORQUE Printed 2/10/2014 10:09.05AM North America-ALASKA-BP Page 39 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 1/14/2014 00:00 - 03:00 3.00 DRILL N DPRB PROD1 TIME DRILL 6-1/8"PRODUCTION HOLE SIDETRACK FROM 13,590'MD T/13,625'MD -TIME DRILL 16 FT/HR FOR 1 HOUR -265 GPM,2100 PSI -120 RPM,5.5-6.5K TORQUE -DD CONFIRM SIDETRACK DEPARTURE FROM PREVIOUS WELLBORE @ 13,550'MD -GREASE WASHPIPE WHEN TAKING SURVEYS FOR DEPARTURE 03:00 - 12:00 9.00 DRILL N DPRB PROD1 DRILL 6-1/8"PRODUCTION HOLE F/13,625'T/ 14,097'MD,8,934'TVD -265 GPM,2190 PSI ON,2100 PSI OFF -140 RPM,9-10 K TORQUE ON,6 K TORQUE OFF,15K WOB -PU WEIGHT=183 K,SO WEIGHT=155 K, ROT=168 K -SURVEY EVERY 90 FT -ACTUAL DRILL TIME=8.16 HRS -TOTAL BIT HRS=79.3,TOTAL JAR HRS=97.8 -BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.6 PPG IN,8.7 PPG OUT -LOSSES AVG:30 BPH -FINGER PRINTING CONNECTIONS:AVG FLOW BACK ON CONNECTION=-27 BBLS -PUMPED 40 BBL,40 PPB LCM PILLS AT 13,673'MD&13,818'MD 12:00 - 15:00 3.00 DRILL N DPRB PROD1 DRILL 6-1/8"PRODUCTION HOLE F/14,097'MD TO 14,370',8,923 TVD -SWITCH FROM NPT BACK TO PRODUCTIVE TIME 15:00 - 00:00 9.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/14,370'MD T/14,951'MD,8,893'TVD -265 GPM,2300 PSI ON,2236 PSI OFF -120 RPM,9-10 K TORQUE ON,6 K TORQUE OFF,15K WOB -PU WEIGHT=200 K,SO WEIGHT=150 K, ROT=168 K -SURVEY EVERY 90 FT -ACTUAL DRILL TIME=7.39 HRS -TOTAL BIT HRS=86.82,TOTAL JAR HRS= 105.18 -BACK REAM EACH STAND PRIOR TO CONNECTIONS MUD WEIGHT:8.6 PPG IN,8.7 PPG OUT -LOSSES AVG:30 BPH -FINGER PRINTING CONNECTIONS:AVG FLOW BACK ON CONNECTION=-27 BBLS -PUMPED 40 BBL,40 PPB LCM PILL AT 14,500',SAWA REDUCTION IN LOSSES TO 15-BPH. Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 40 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud DaterTime:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth 1 Phase Description of Operations (hr) (usft) 1/15/2014 00:00 - 06:30 6.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/14,951'MD TO 15,313'MD,8,897'TVD -265 GPM,2370 PSI ON,2303 PSI OFF • -120 RPM,9-10 K TORQUE ON,6 K TORQUE ,OFF,15K WOB -ADT-2.92,TOTAL BIT HRS-89.74,TOTAL 'JAR HRS-108.1 -PUW-192K,SOW-146K,ROT-174K -SURVEY EVERY 90 FT -BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.6 PPG IN,8.7 PPG OUT -CURRENT LOSS RATE--10 BPH -FINGER PRINTING CONNECTIONS:AVG FLOW BACK ON CONNECTION=-27-28 BBLS -PUMPED 40 BBL,40 PPB LCM PILL AT 15,010',SAWA REDUCTION IN LOSSES F/15- BPH. TO 9 BPH 06:30 - 10:30 4.00 DRILL N DFAL 15,313.00 PROD1 MWD TOOLS NOT SYNCING: -TROUBLE SHOOT ERATIC PRESSURES CAUSING THE MWD TOOL FAILURE TO SYNC -CHECK OUT SURFACE EQUIPMENT-ALL SURFACE EQUIPMENT CHECKS OUT GOOD -C/O SENSOR ON STAND PIPE- NO IMPROVEMENT,STILL HAVING SYNC ISSUES -CONFIRM WITH ANCHORAGE LEADERSHIP ON DECISION TO PULL OUT OF THE HOLE. 1030 - 12:00 1.50 DRILL N DFAL I PROD1 PUMP OUT OF THE HOLE FROM 15,313'MD 'TO 14,385'MD -BLOW DOWN TOP DRIVE, -MONITOR WELL-NOTING A REDUCTION IN FLOW OVER 30 MIN. 10 MIN-F/O=18%TO 9%,11 BBLS BLED BACK 20 MIN-F/O=9%TO 5%,8 BBLS BLED BACK -30 MIN-F/O=5%TO 3%,6 BBLS BLED BACK -PUMP OUT OF THE HOLE AT 2 BPM W/435 PSI -MW-8.6 PPG IN/OUT -SLIGHT LOSSES WHILE PUMPING OUT OF THE HOLE -NO TIGHT SPOTS OR OVERPULL _ ENCOUNTERED 12:00 - 00:00 12.00 DRILL N DFAL PROD1 CONTINUE TO PUMP OUT OF THE HOLE DUE TO SWABBING F/14,385'MD TO 6,070'MD -2 BPM,315 PSI -MW-8.6 PPG IN/OUT SLIGHT LOSSES WHILE PUMPING OUT OF THE HOLE-0.5 BPH -NO TIGHT SPOTS OR OVERPULL ENCOUNTERED 1/16/2014 00:00 - 03:00 3.00 DRILL N DFAL 3,400.00 PROD1 PUMP OUT OF THE HOLE FROM 6,070'MD TO 3,400' -2 BPM,300 PSI 1-MW-8.6PPG IN/OUT -PULLED ONE STAND W/PUMPS OFF,NO SWABBING DETECTED 03:00 - 04:00 1.00 DRILL N DFAL 3,400.00 PROD1 PULL OUT OF THE HOLE ON ELEVATORS F/ 3,400'TO 1,788'MD -HOLE TAKING THE CORRECT AMOUNT OF DISPLACEMENT - MW-8.6 PPG IN/OUT Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 41 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:00 - 04:30 0.50 DRILL N DFAL 1,788.00 PROD1 SHALLOW HOLE TEST FOR MWD AT 1,788'MD -200 GPM,706 PSI,NO ROTATION-NO SIGNAL ACHIEVED -ORIGINAL TEST SHOWED 200 GPM WITH 810 PSI -BROUGHT THE PUMP UP TO 250 GPM,1365 PSI,WITH 120 RPM DID NOT SEE ANY MAJOR PRESSURE FLUCTUATIONS,-1365 PSI-1385 PSI -OBTAINED A SIGNAL TO THE MWD TOOL. 04:30 - 10:00 5.50 DRILL N DFAL 1,788.00 PROD1 CONTINUE PULLING OUT OF THE HOLE ON ELEVATORS F/1788'MD TO 465'MD -MONITOR DISPLACEMENT ON TRIP TANK- HOLE TAKING CORRECT DISPLACEMENT -MONITOR WELL 10 MIN PRIOR TO PULLING BHA THROUGH THE STACK-WELL STATIC PUMPING THROUGH BHA TO CHECK FOR WASH OUTS.AS IT IS LAID DOWN -RACK BACK NEW JARS WITH HWDP. PJSM FOR REMOVING THE SOURCE: REMOVE SOURCE PER SLB PROCEDURE FOR HANDLING SOURCE -SURFACE TEST POWER DRIVE PRIOR TO LAYING IT DOWN -220 GPM,720 PSI,15 RPM 10:00 - 11:30 1.50 DRILL N DFAL 0.00 PROD1 CLEAN&CLEAR RIG FLOOR -C/O XT39 SAVER SUB -MOBILIZE BHA#10 -LINED UP FOR MONITORING THE WELL VIA THE TRIP TANK -FUNCTION TEST THE BLIND SHEAR RAMS- CLOSING TIME:18 SEC 11:30 - 12:00 0.50 DRILL P PROD1 RIG SERVICE INSPECT AND SERVICE THE TOP DRIVE 12:00 - 15:30 3.50 DRILL N DFAL 465.00 PROD1 'MAKE UP 6-1/8"PRODUCTION BHA#10 PJSM FOR MAKING UP BHA:SLB AND DDI CREW -PU POWER DRIVE AND TEST AT SURFACE- GOOD TEST -200 GPM-380 PSI,230 GPM-480 PSI,250 GPM-580 PSI -PU&MU 6-1/8"PRODUCTION BHA#10 AS DIRECTED BY SLB DD TO 465'MD -MONITOR DISPLACEMENT VIA THE TRIP TAN K MW 8.6 PPG,IN/OUT 15:30 - 23:30 8.00 DRILL N DFAL 11,470.00 PROD1 TIH ON ELEVATORS WITH 6-1/8"BHA#10 ON 4"XT39 DP -TIH F/465'MD TO 11,470'MD -MONITOR WELL VIA THE TRIP TANK -ADJUSTING TRIP SPEEDS WITH EVIDENCE OF PUSHING FLUID AWAY. -FILL PIPE EVERY 20 STANDS -SHALLOW HOLE TEST @ 1793 -250 GPM,958 PSI-GOOD SYNC --MW 8.6 PPG,IN/OUT FUNCTION TEST UPPER VBR=CLOSING TIME 17 SEC FUNCTION TEST LOWER VBR=CLOSING TIME 18 SEC FUNCTION TEST ANNULAR=CLOSING TIME 25 SEC Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 42 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 I End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 23:30 - 00:00 0.50 DRILL P PROD1 SLIP&CUT DRILLING LINE -PJSM FOR SLIP&CUT,REVIEW PROCEDURE -CUT 80'OF DRILLING LINE 1/17/2014 0000 - 01:30 1.50 DRILL I P PROD1 CONTINUE SLIP AND CUT DRILLING LINE -RE-CALIBRATE BLOCK HEIGHT 01 30 - 04:30 3.00 DRILL N DFAL PROD1 TIN WITH 6-1/8"PROD BHA#10 -TIN F/11,470'MD TO 14,200' -MONITOR WELL VIA THE TRIP TANK -ADJUSTING TRIP SPEEDS WITH EVIDENCE OF PUSHING FLUID AWAY. -FILL PIPE EVERY 20 STANDS -TIGHT SPOTS AT:12,275'15K,12,495'15K ;-SURVEY SHOTS AT:12,357',12,485,12,810 ,13432',13,810' -MWD TEST @ 12,357' 250 GPM,1475-1490 PSI,120 RPM,WHILE 'MOVING PIPE UP- - GOOD SYNC AND NO PRESSURE FLUCTUATIONS. 04:30 - 06:00 1.50 DRILL N DFAL PROD1 I WORKING TIGHT HOLE AT 14,200' 1-LOG SHOWS WE ARE WORKING A FAULT CLUSTER&THE SHUBLIK FORMATION FROM i 14,050'TO 14,140' WORKED PIPE FREE AND CYCLED PUMPS FOR A SURVEY SURVEY CONFIRMS WE ARE IN THE CORRECT WELL BORE. 06:00 - 16:00 10.00 DRILL N DFAL PROD1 CONTINUE WORKING TIGHT HOLE: WORKING TIGHT HOLE FROM TOP OF FAULT CLUSTER AT 14,050'TO THE DEEPEST POSITION OF 14,435'MD. I-WORKING PIPE WITH VARIED PARAMETERS: -PUMPS ON,PUMPS OFF,ROTATION AND NO ROTATION - 16:00 - 17:30 1.50 DRILL N DFAL PROD1 PUMP OUT OF THE HOLE FROM F/14037'MD TO 13,385'MD 85 GPM,450PSI, -MW-8.6 PPG,IN/OUT '-RIH F/13,385'TO 14,037' PUW-203K,DWN WT-140 K, .-MONITOR DISPLACEMENTS CONFERENCE CALL WITH ANCHORAGE RIG LEADERSHIP FOR PLAN FORWARD -AGREED PLAN IS TO WASH AND REAM WITH FULL DRILLING RATES IN ATTEMPT TO GET BACK TO BOTTOM IN THE ORIGINAL HOLE BEFORE ATTEMPTING ANY SIDETRACK OPERATIONS. 17:30 - 20:00 2.50 DRILL N DFAL PROD1 WASH AND REAM FROM 14,037'MD TO 14,225' MD -250 GPM,1600-1800 PSI,100 RPM,100-150 ROP,8-12 K TQ PUMPED 30 BBL WEIGHTED HIGH VIS SWEEP(10.1 PPG)(100 VIS) -SAWA MIN 5%INCREASE IN CUTTINGS I _ RETURN IN CUTTINGS AT BOTTOMS UP Printed 2/10/2014 10:09.05AM North America-ALASKA-BP Page 43 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:00 - 20:30 0.50 DRILL P PROD1 INSPECT AND SERVICE TOP DRIVE -GREASE WASH PIPE -INSPECT BLOWER ON TRACTION MOTOR ON TOP DRIVE. 20:30 - 00:00 3.50 DRILL N DFAL PROD1 CONTINUE TO WASH AND REAM FROM 14,225 MD TO 14,572'MD -250 GPM,1600-1800 PSI,100 RPM,100-150 ROP,8-12 K TQ -PUMPED 30 BBL WEIGHTED HIGH VIS SWEEP(10.1 PPG)(100 VIS) -SAWA MIN 5%INCREASE IN CUTTINGS RETURN IN CUTTINGS AT BOTTOMS UP -MW-8.6 PPG,IN/OUT PUW-210K,SOW-146K,ROT-166K 1/18/2014 00:00 - 07:00 7.00 DRILL N DFAL PROD1 CONTINUE TO WASH AND REAM FROM 14,572'MD TO 15,313'(BOTTOM) -250 GPM,1600-1800 PSI,100 RPM,100-150 ROP,8-12 K TQ -PUMPED 30 BBL WEIGHTED HIGH VIS SWEEP(10.1 PPG)(100 VIS) -SAWA MIN 5%INCREASE IN CUTTINGS RETURN IN CUTTINGS AT BOTTOMS UP -MW-8.6 PPG,IN/OUT -PHASE THREE CALLED AT 03:45 -ROTARY SUPT NOTIFIED AND PLAN FORWARD DISCUSSED:GOING TO CONTINUE WITH PLAN OF REAMING TO BOTTOM.THEN MAKING A SHORT TRIP -EXTRA MUD,WATER,FUEL AND PROVISIONS WERE BROUGHT OUT IN CASE OF PHASE WEATHER.PER PRIOR DISCUSSIONS WITH ANCHORAGE LEADERSHIP GROUP AND ROTARY SUPT -WILL DISCUSS W/ROTARY SUPT FOR FURTHER PLAN FORWARD WHEN SHORT TRIP IS ABOVE THE TROUBLE FAULT AREA. 07:00 - 09:00 2.00 DRILL N WAIT PROD1 CIRCULATE BOTTOM UP -CIRCULATE A 40 BBL HIGH VIS WEIGHTED SWEEP(10.1 PPG)(100 VIS) -ROTATE AND RECIPROCATE PIPE WHILE PUMPING -265 GPM,1900PSI,100 RPM'S -SAWA SLIGHT INCREASE IN CUTTINGS RETURNS AT SURFACE(5%) -CUTTINGS STILL SHOWA VERY FINE SILTY SAND INDICATING A SHUBLIK FORMATION 09:00 - 09:30 0.50 DRILL N WAIT PROD1 MONITOR WELL-FINGERPRINTING DUE TO CONTINUED WELLBORE BREATHING NOTING A REDUCTION IN FLOW OVER 30 MIN. -10 MIN-F/O=24%TO 15%,46 BBLS BLED BACK -20 MIN-F/O=15%TO 9%,20 BBLS BLED BACK -30 MIN-F/O=9%TO 6%,10 BBLS BLED BACK -PUMP OUT OF THE HOLE AT 2 BPM W/435 PSI MW-8.6 PPG IN/OUT Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 44 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. I UWI:500292058700 Active datum:YAM Actual t 90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:30 - 12:00 2.50 DRILL N WAIT PROD1 PUMP OUT OF THE HOLE FROM 15,313'MD TO 13,942'MD -2 BPM,435 PSI -MONITOR TRIP SHEET AND PITS 1-3 FOR TRIP DISPLACEMENTS WHILE PUMPING OUT OF THE HOLE DUE TO SWABBING -PICK UP AND SLACK OFF WEIGHTS WITH PUMPS ON: -PUVw200K,SOW-144K TIGHT SPOTS ENCOUNTERED AT: -14,520',15K OVER PULL-WIPED AREA X 1 -14,450',15K OVER PULL-WIPED AREA X 1 -14,380'15K OVER PULL-WIPED AREAX 1 -14,345',PULLED 40K OVER,WIPED AREA X2 -DISCUSSED PLAN FORWARD WITH ROTARY SUPT FOR CONTINUED PHASE 3 WEATHER CONDITIONS: DECISION WAS MADE TO CONTINUE PULLING INTO THE 7"SHOE AT 11,535'&WAIT FOR WEATHER CONDITIONS TO IMPROVE AND TRUCKING SUPPORT TO RESUME 12:00 - 15:30 3.50 DRILL N WAIT PROD1 CONTINUE PUMPING OUT OF THE HOLE F/ 13,942'MD TO 11,173 MD -2BPM,375PSI -MONITOR TRIP SHEET AND PITS 1-3 FOR TRIP DISPLACEMENTS WHILE PUMPING OUT OF THE HOLE DUE TO SWABBING MW-8.6 PPG IN/OUT 15 30 - 16:30 1.00 DRILL N WAIT PROD1 CIRCULATE BOTTOM UP X 1 -RECIPROCATE PIPE A FULL STAND WHILE PUMPING BOTTOMS UP. -260 GPM,1545 PSI, I-385 MAX UNITS OF GAS WHILE CIRCULATING PRIOR TO BU -LOST 28 BBLS DURING CIRCULATION -NO INCREASE IN CUTTINGS AT BOTTOMS UP. "AT 16:00 ANNOUNCEMENT WAS MADE CHANGING PHASE 3 WEATHER I RESTRICTIONS TO PHASE 1 -DISCUSSED PLAN FOR RETURNING TO WORK WITH ROTARY SUPT CHECKED ROAD CONDITIONS BETWEEN H PAD AND Y PAD WITH RIG LOADER. -PLAN IS TO SEND RIG LOADER TO ESCORT TRUCKS IN THE SHORT TERM UNTIL SNOW BLOWER CAN COMPLETELY CLEAR ROAD. 16'30 - 17:00 0.50 DRILL N WAIT PROD1 MONITOR WELL B/D TOP DRIVE -CONFIRM REDUCTION IN FLOW OVER 10 MIN DUE TO WELLBORE BREATHING Printed 2/10/2014 10.09:05AM North America-ALASKA-BP Page 45 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:00 - 21:30 4.50 DRILL N WAIT PROD1 RIH ON ELEVATORS W/6-1/8"PRODUCTION BHA#10 TO F/11,173'MD TO 15,271' -RIH ON 4"DP FROM THE DERRICK,FILLING PIPE EVERY 20 STANDS -ENCOUNTER TIGHT SPOT AT 14,305'MD, S/O 30K,PU AND WORK STRING 10 TIMES IN AN ATTEMPT TO GET PAST 14,305'WITHOUT SUCCESS -ATTEMPT TO PUMP THROUGH 14,305'WITH VARIOUS PUMP RATES WITHOUT SUCCESS -INITIATE ROTARY AT 75 RPM,1.5 BPM PUMP RATE AND WORK DOWN THROUGH TIGHT SPOTS F/14,305'TO 14,320' -PU STRING TO 14,280'&ATTEMPT TO WORK THROUGH TIGHT SPOT WITHOUT PUMPS OR ROTARY WITHOUT SUCCESS. -INITIATE ROTARY AND WORK THROUGH TIGHT AREAS AT 75 RPMS&1.5 BPM -PU AND WORK TIGHT AREA WITH NO ROTARY AND 1.5 BPM,450 PSI-WITH SUCCESS -ENCOUNTER TIGHT SPOT AT 14,465'MD -ATTEMPT TO WORK THROUGH WITHOUT PUMPS OR ROTARY WITH NO SUCCESS -PU AND INITIATE PUMPS AT 1.5 BPM,460 PSI AND ROTARY AT 75 RPMS,WASH AND REAM TIGHT SPOT -SHUT DOWN PUMP AND ROTRY AND WORK TIGHT SPOT WITH SUCCESS 21:30 - 22:00 0.50 DRILL N WAIT PROD1 WASH LAST STAND DOWN FROM 15,271'MD TO 15,313' -265 GPM,1861 PSI,NO ROTATION MW-8.6 PPG IN/OUT 22:00 - 00:00 2.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/15,313'MD TO 15,458'MD,8,890'TVD 273 GPM,1994 PSI ON,1877 PSI OFF -120 RPM,10 K TORQUE ON,6 K TORQUE OFF,15K WOB -PU WEIGHT=196 K,SO WEIGHT=145 K, ROT=163 K -SURVEY EVERY 90 FT -ACTUAL DRILL TIME=1.42 HRS -TOTAL BIT HRS=1.42,TOTAL JAR HRS=1.42 -BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.6 PPG IN,8.6 PPG OUT -LOSSES AVG:15 BPH -FINGER PRINTING CONNECTIONS:AVG FLOW BACK ON CONNECTION=-29 BBLS -PUMPING 40 BBL,10.1 PPG WEIGHTED HIGH VIS SEEP SWEEPS. • Printed 2/10/2014 10:09:O5AM North America-ALASKA-BP Page 46 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) I Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544.400.00) Project:Prudhoe Bay ' Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 1/19/2014 00:00 - 12:00 12.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/15,458' MD,16,122'MD. -273 GPM,2020 PSI ON,1950 PSI OFF 1-120 RPM,9-10 K TORQUE ON,6 K TORQUE OFF,15K WOB -PUW-197K,SOW-146K,ROT-170K 1-SURVEY EVERY 90 FT ,-ACTUAL DRILL TIME=7.49 HRS TOTAL BIT HRS=8.91,TOTAL JAR HRS=8.91 -BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.6+PPG IN,8.6+PPG OUT -LOSSES AVG:15 BPH -FINGER PRINTING CONNECTIONS:AVG FLOW BACK ON CONNECTION=—27 BBLS -PUMP 40 BBL 10 PPG,100 VIS SWEEP AT 15,750'MD -NO NOTICEABLE INCREASE IN CUTTINGS AT BOTTOMS UP. 12:00 - 00:00 12.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/16,122' MD.TO 16,742'MD 8,890'TVD -273 GPM,2230 PSI ON,2130 PSI OFF -120 RPM,9-10 K TORQUE ON,6 K TORQUE OFF,15K WOB -PUVV-200K,SOW-140K,ROT-159K -SURVEY EVERY 90 FT ACTUAL DRILL TIME=6.92 HRS -TOTAL BIT HRS=14.41,TOTAL JAR HRS= 14.41 '-BACK REAM EACH STAND PRIOR TO CONNECTIONS -MUD WEIGHT:8.7 PPG IN,8.7 PPG OUT FINGER PRINTING CONNECTIONS:AVG FLOW BACK ON CONNECTION=—27 BBLS LOSSES INCREASED AT BIT AT 16,730' I-PUMPED 40 BBL,40 PPB LCM PILL -WENT TO 100%LOSSES AFTER DRILLING PAST 16,742'MD -DRILLED AHEAD TO 16,742'GAINING RETURNS SLOWLY TO 50% Printed 2/10/2014 10.09 O5AM North America-ALASKA-BP Page 47 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 1/20/2014 00:00 - 02:30 2.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/16,742' MD,TO 16,845' -250 GPM.1950 PSI ON,1850 PSI OFF -120 RPM,10-12 K TQ,10-15 WOB, -MW-8.7 PPG IN/OUT. -PUW-220K,SOW-154K,ROT-170K -LINED UP THE HOLE FILL ON THE BACKSIDE TO KEEP THE HOLE FULL -PUMPING 40 BBL 40 PPB LCM PILL -CONTINUED DRILLING AHEAD WITH LOSSES, 50%RETURNS FOR SHORT TIME -SHUT DOWN PUMPS AND WORKED PIPE WHEN PILL WAS OUT OF THE BIT TO ALLOW LCM PILL TO SATURATE -STATIC LOSS RATE 190 BPH -ORDERED MORE MUD AND 300 BBLS OF 40 PPB LCM PILL FROM THE MUD PLANT "'01:00 CONTACTED DAY WSL,ODE AND ROTARY WTL -AGREED ON PLAN FORWARD TO PUMP SUCCESSIVE 40 PPB LCM PILLS AND CONTINUE TO DRILL PAST THE LOSS ZONE ATTEMPTING TO HEAL LOSSES WITH LCM PILLS AND DRILL CUTTINGS. 02:30 - 08:00 5.50 DRILL N DPRB PROD1 -DRILL AHEAD UNTIL LOSSES DROPPED BACK TO 5%RETURNS -STOPPED DRILLING AHEAD -HOLE FILL ON THE BACK SIDE TO FILL HOLE -PUMPED 60 BBLS OF 40 PPB LCM PILL AT 2 BPM,115 PSI -SPOTTING IT AT THE LOSS ZONE AND ALLOWING IT TO SOAK IN, -STATIC LOSS RATE DROPPED TO 90 BPH -PULLED OUT OF THE HOLE TWO STANDS TO 16,667'ABOVE THE LOSS ZONE - BUILDING MORE LCM PILLS BEFORE DRILLING AHEAD GEOLOGY CONFIRMED FAULT WAS DRILLED INTO AT 16,775'MD -PUMPED 60 BBL,40 PPB LCM PILL,2 BPM, 100 PSI -KEEPING HOLE FULL ON THE BACKSIDE, RECIPROCATING PIPE 90'WHILE PUMPING LCM.190 BPH LOSS RATE.(DYNAMIC) PUMP 82 BBL,40 PPB LCM PILL. -2 BPM,280 PSI,STILL FILLING THE BACKSIDE,KEEPING THE HOLE FULL, RECIPROCATING THE PIPE ONE FULL STAND -INITIAL LOSS RATE AT 190 BPH,FINAL LOSS RATE-130 BPH. -SHUT DOWN PUMPS,KEEP PIPE MOVING ALLOW LCM TO SOAK IN. ESTABLISH STATIC LOSS RATE AT 60 BPH. Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 48 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. •UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 08:00 - 12:00 4.00 DRILL N DPRB PROD1 RECIPROCATE PIPE ONE FULL STAND ALLOWING LCM TO SOAK IN -WAIT FOR MORE MUD AND LCM PILL VOLUME TO ARRIVE •-ESTABLISH STATIC LOSS RATE: -24 BPH. MW-8.7 PPG IN/OUT 12.00 - 12:30 0.50 DRILL N DPRB PROD1 TIH ON ELEVATORS F/16,691 MD,TO 16,845' MD -PUW-200 K,SOW-140K,MW-8.7 PPG IN/OUT -TOOK 40K AT 16,780'MD,ATTEMPT TO WORK PAST WITHOUT PUMPS OR ROTATION- UNSUCCESSFULLY -KELLY UP AND ROTATE AND WASH 'THROUGH -211 GPM,1200 PSI,60 RPM,5K TQ 12:30 - 18:00 5.50 DRILL P PROD1 RESUME DRILLING AHEAD IN 6-1/8" PRODUCTION INTERVAL -F/16,845 MD TO 17,160'MD -273 GPM,2020 PSI ON,1900 PSI OFF, 140 RPM,14K WOB, -BACKREAM ENTIRE STAND PRIOR TO CONNECTION MW-8.6 PPG IN/OUT -STILL EXPERIENCING HEAVY LOSSES -INITIAL LOSS RATE OF 350 BPH,SLOWING DOWN TO 150 BPH BY 17,000'MD -PUMPED(2)100 BBL(40PPB)LCM PILLS CONSISTING OF -SAFE CARB-1400 5PPB -SAFE CARB-750 IPPB -SAFE CARB-500 8PPB -G-SEAL 15 PPB -MIX TWO MED-5 PPB STRINGING IN BACKGROUND LCM-SAFE CARB 8 G-SEAL -FINGER PRINTING FLOW BACK ON CONNECTIONS: 30 BBL AVG FLOW BACK ON 7 MIN CONNECTIONS. 18.00 - 00:00 6.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE AT 17,160' MD TO 17,642'MD,8,881 TVD -273 GPM,2020 PSI ON,1900 PSI OFF, 140 RPM,14K WOB, -PUW-200K,SOW-130K,ROT-162K -SURVEY EVERY 90 FT -ACTUAL DRILL TIME=7.11 HRS -TOTAL BIT HRS=22.3,TOTAL JAR HRS=22.3 -MW-8.6 PPG IN/OUT -STILL EXPERIENCING HEAVY LOSSES -PUMPED(2)100 BBL 40 PPB LCM PILLS, -LOSS RATES RANGING FROM 210 BPH TO 130 BPH WHILE DRILLING. -FINGER PRINTING FLOW BACK ON CONNECTIONS: 30 BBL AVG FLOW BACK ON 7 MIN CONNECTIONS. • Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 49 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM 'Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual(90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 1/21/2014 00:00 - 06:00 6.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/17,642'TO TD 18,155 MD,8,880'TVD -273 GPM,2020 PSI ON,1900 PSI OFF, 140 RPM,14K WOB, -BACKREAM ENTIRE STAND PRIOR TO CONNECTION -MW-8.6 PPG IN/OUT -PUMPED(2)100 BBL, 40 PPB LCM PILLS, -LOSS RATES RANGING FROM 150 BPH TO 120 BPH WHILE DRILLING. -FINGER PRINTING FLOW BACK ON CONNECTIONS: 30 BBL AVG FLOW BACK ON 7 MIN CONNECTIONS. -LOSSES CONTINUED AT 120 BPH UNTIL 18,015'THEN INCREASED TO 270 BPH, -LOST 300 PSI PUMP PRESSURE 2100 PSI TO 1800 PSI.POSSIBLE FAULT. -PUMPED(1)100 BBL, 40 PPB LCM PILLS, _ 06:00 - 11:30 5.50 DRILL I P PROD1 ROTATE AND RECIPROCATE F/18,113'MD TO 18,155'MD WHILE CBU -275 GPM,2050 PSI -140 RPM,6K TQ -SPOT 100 BBL 40#BBL LCM PILL -SET BACK ONE STD DP, -MONTIOR WELL,OBSERVE GAS BREAKING OUT AT FLOWLINE(150 UNITS) -CONFIRM WITH ODE,DECIDE TO CONTINUE CIRCULATION -ROTATE AND RECIPROCATE PIPE F/18,021' MD TO 18,113'WHILE CBU 11:30 - 12:00 0.50 DRILL P PROD1 BACK REAM OOH F/18.021'MD TO 17,547'MD -275 GPM,1,800 PSI • -120 RPM,6K TO -PU=202K,SO=138K,ROT=165K MUD LOSS FOR TOUR=1492 BBLS 12:00 - 13:30 1.50 DRILL P PROD1 ROTATE AND RECIPROCATE F/17,547 MD TO 17,455'MD -275 GPM,1955 PSI -120 RPM,7K TQ 13:30 - 21:00 7.50 DRILL P PROD1 PUMP OOH W/NO ROTATION F/17,455'MD TO 16,775'MD -84 GPM,450 PSI -TIGHT SPOT @ 16,775'ATTEMPT WORK PAST SPOT,BEGIN ROTATION W/60 RPM, WORK PAST SPOT AND WIPE OUT SAME. -CONT PUMP OOH W/NO ROTATION TO 12,350'MD -SPOTS W/OVERPULL 16,917 25K,16,680 25K',16,336'20K,14,330'25K,14,211'35K 21:00 - 22:30 1.50 DRILL P PROD1 MAD PASS F/12,350'TO 12,140' -275 GPM,1525 PSI -140 RPM,6K TQ -LOSSES+/-261 BBL/HR 22.30 00:00 1.50 DRILL P PROD1 'CONT MAD PASS F/12,140'TO 11,474'W/NO ROTATION -275 GPM,1600 PSI -LOSSES+/-164 BBUHR -PUMP 100 BBL 40#BBL LCM PILL©11,663' -MUD LOSS FOR TOUR=876 BBLS 1/22/2014 00.00 - 01:00 1.00 DRILL P I PROD1 MONITOR WELL Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 50 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-1 OB Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) _ 01:00 - 02:30 1.50 DRILL N DPRB 18,155.00 PROD1 ;DROP ACTIVATION BALL TO OPEN WELL COMMANDER -BALL ON SEAT©450 STKS,TOOL SHIFTED OPEN W/2100 PSI -DROP ISOLATION BALL,BALL ON SEAT @ ,450 STKS -CONFIRM ISOLATION W/MWD,NO TURBINE RPM 0230 - 04:00 1.50 DRILL N DPRB 18,155.00 PROD1 PUMP 95 BBL 80#BBL LCM PILL AND DISPLACE INTO ANNULUS. -70 BBL LOSS WHILE SPOTTING. 04-00 04.30 0.50 DRILL N DPRB 18,155.00 PROD1 DROP ACTIVATION BALL TO CLOSE WELL COMMANDER -BALL ON SEAT©450 STKS,TOOL SHIFTED CLOSED W/1800 PSI -CONFIRM CIRCULATION THROUGH BHA W/ i MWD TURBINE RPM AND MWD SIGNAL. 04:30 07:00 250 DRILL 2 PROD1 BLOW DOWN TDS,HANG BLOCKS -CUT/SLIP DRILLING LINE i -RECALIBRATE BLOCK HEIGHT, AMPHION, TOTCO,AND SLB 07.00 - 08:00 1.00 DRILL P PROD1 POOH F/11,447'TO 11,375'NO DROP IN FLUID LEVEL I -PUMP OOH F/11,375'TO 10,901'W/84 GPM. 270 PSI - -LOST 18 BBLS IN 5 STANDS. 08:00 - 09:30 1.50 DRILL P PROD1 ROTATE AND RECIPROCATE F/10,812'TO 10,901' -CIRC W/272 GPM,1580 PSI -DYNAMIC LOSS RATE=360 BBUHR -REDUCE RATE TO 84 GPM,400 PSI.LOSS I RATE=100 BBUHR j I -TOTAL STKS PUMPED 3000/302 BBLS,TO SPOT 95 BBL 80#BBL LCM ON BOTTOM AND I PUSH 55 BBLS INTO THIEF ZONE BY CALCULATIONS. 09:30 - 12:00 2.50 DRILL P PROD1 PUMP OOH F/10,812'TO 8,622' -84 GPM,260 PSI -TOTAL MUD LOSS FOR TOUR=624 BBLS 12.00 - 17 00 5.00 DRILL P PROD1 PUMP OOH F/8,622'TO 5,200' -84 GPM,225 PSI 17.00 - 19:30 2.50 DRILL P 1 • PROD1 POOH F/5,200'TO 5,000'MONITOR FOR SWABBING,FLUID DROPPING. CONT POOH F/5,000'TO 520' 19:30 - 20:00 0.50 DRILL P PROD1 PJSM ON RA SOURCE HANDLING W/SLB AND RIG CREW -XO SLIP INSERTS 20:00 - 21:30 1.50 DRILL P PROD1 LAY DOWN BHA AS PER SLB -BIT GRADE 1-2-LT-G-X-I-ER-TD 21:30 - 22:00 0.50 DRILL PI PROD1 I CLEAN AND CLEAR RIG FLOOR Printed 2/10/2014 10:09:O5AM North America-ALASKA-BP Page 51 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release: 1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual @90.54usft(above Mean Sea Level) _ Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 22:00 - 00:00 2.00 DRILL P PROD1 PULL WEAR BUSHING,MU TEST JOINT AND •SET TEST PLUG -TEST BOPE -TEST WITNESS WAIVED BY AOGCC REP JOHN CRISP TEST ANNULAR TO 250 PSI LOW/3500 PSI HIGH,CLOSING TIME 25 SECS -TEST UPPER VBR,CHOKE VALVES#1,13, 14,15,KILL LINE,UPPER IBOP TO 250 PSI LOW/4000 PSI HIGH.UPPER VBR CLOSING TIME 19 SECS. -TOTAL MUD LOSS FOR TOUR=234 BBLS 1/23/2014 00:00 - 04:30 4.50 DRILL P PROD1 TEST BOPE -TEST ALL BOPE 250 PSI LOW/4000 PSI j HIGH,WITH EXCEPTION OF MANUAL AND SUPER CHOKE TESTED TO 250 PSI LOW/ 2000 PSI HIGH PERFORM SUCCESSFUL ACCUMULATOR DRAW DOWN TEST CLOSING TIMES:ANNULAR 24 SEC,BLIND •SHEAR 21 SEC,UPR/LPR 18 SEC,CHOKE/ KILL HCR 2 SEC. 1-BOP TEST WITNESS WAIVED BY AOGCC REP JOHN CRISP -TOTAL MUD LOSS DURING BOP TEST=164 • it BBLS 04:30 - 05:00 0.50 DRILL P i PROD1 PULL TEST PLUG AND INSTALL WEAR BUSHING -BLOW DOWN CHOKE MANIFOLD,KILL AND CHOKE LINES 05:00 - 05:30 0.50 DRILL N DPRB 18,155.00 PROD1 MOBILZE BHA EQUIPMENT FROM PIPE SHED 05:30 - 07:00 1.50 DRILL N DPRB 18,155.00 PROD1 PU BHA#11 W/SLB SONIC AND IMPULSE TOOLS, 1 EA 6"NBS,2EA 6'IBS 07:00 - 07:30 0.50 DRILL N DPRB 18,155.00 . PROD1 RIG SERVICE 1-PURGE AND INSPECT TDS MOTORS AND GREASE • -INSPECT DRW INKS BRAKE 07:30 - 12:00 4.50 DRILL N DPRB 18,155.00 PROD1 MU JAR STAND AND HWDP TO 462' -RIH F/462'TO 7,008' -SHALLOW PULSE TEST @1411'W/270 GPM, 840 PSI -TOTAL MUD LOSS FOR TOUR=293 BBL 12 00 - 13 30 1.50 DRILL N DPRB 18,155.00 PROD1 RIH F/7,008'TO 8,600' 13:30 - 18:00 4.50 DRILL N DPRB 18,155.00 PROD1 SONIC CEMENT LOG W/PUMP F/8,600'TO 11,040' -250 GPM,ICP=1040 PSI,FCP=1130 PSI FINGERPRINT CONNECTIONS,15 BBL AVG FLOWBACK 18:00 - 20:30 2.50 DRILL N DPRB 18,155.00 PROD1 CONT SONIC CEMENT LOGGING WITH OUT PUMPING -F/11,040'TO 11,700' Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 52 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:30 - 21:30 1.00 DRILL N DPRB 18,155.00 PROD1 RIH F/11,700'TO 11,943' • -ENCOUNTER TIGHT SPOTS @ 11,796', 11,815',11,874'WORK THROUGH W/20K 11„889 WORK THROUGH W/40K NO PUMP. H ENCOUNTER TIGHT SPOTS @ 11,923', 11,930', UNABLE TO PASS @ 11,943'W/40K DOWN -ATTEMPT TO PASS W/126 GPM 460 PSI,NO SUCCESS,INCREASE PUMP RATE TO 275 GPM 1360 PSI,50 RPM,5/6 K TQ TO WORK TIGHT SPOTS.AFTER CLEAN UP WIPE THROUGH SPOTS WITHOUT PUMP OR ROTATION. 21.30 - 23.00 1.50 DRILL N DPRB 18,155.00 PROD1 CONT RIH F/11,943'TO 12,227' -ENCOUNTER TIGHT SPOTS @ 11,961', 12,050',12,087',12,138',12,150', UNABLE TO PASS 12,227'W/40K DOWN. -ATTEMPT TO PASS W/126 GPM 460 PSI,NO SUCCESS,INCREASE PUMP RATE TO 275 GPM 1360 PSI,50 RPM,4/6 K TQ TO WORK TIGHT SPOTS.AFTER CLEAN UP, WIPE THROUGH SPOTS WITHOUT PUMP OR i ROTATION 23:00 - 00:00 1.00 DRILL N DPRB 18,155.00 PROD1 CONT RIH F/12,227'TO 12,735' • -SPOTS @ 12,358',12,360'12,377',12,388', 12,410',12,435',12,448',12,491' ALL TOOK 20K TO PASS.NO EXCESS PU WT •SEEN ON WT INDICATOR. -TOTAL MUD LOSS FOR TOUR=668 BBL 1/24/2014 00:00 - 02:00 2.00 DRILL N DPRB 18,155.00 PROD1 RIH F/12,735'TO 14,444'. -TIGHT SPOTS @ 14,240',14,382'WORK THROUGH W/40K DOWN -ATTEMPT WORK THROUGH TIGHT SPOT F/ 14,420'TO 14,444'W/126 GPM,515 PSI,15 RPM,NO SUCCESS. -INCREASE TO 275 GPM,1,500 PSI,50 RPM, 8K TQ AND CLEAN UP SPOT. -WORK THROUGH W/NO ROTATION,NO PUMP. 02:00 - 04:00 2.00 DRILL N DPRB 18,155.00 PROD1 RIH F/14,444'TO 16,875" -TIGHT SPOTS @ 14,651',16,664'TAKING 20K DOWN. -ATTEMPT TO WORK THROUGH TIGHT SPOT F/16,780'TO 16,875'W/126 GPM,600 PSI 15 •RPM.NO SUCCESS. -INCREASE TO 275 GPM,1,500 PSI,50 RPM, 8K TQ AND CLEAN UP SPOT. NO GO. -WORK THROUGH SPOT W/15 RPM WITH SUCCESS 04:00 - 05:00 1.00 DRILL N DPRB 18,155.00 PROD1 RIH F/16,875'TO 18,155' -TIGHT SPOT @ 17,065'TOOK 20K DOWN. Printed 2/10/2014 1009 05AM North America-ALASKA-BP Page 53 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date: 1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual 090.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:00 - 07:30 2.50 DRILL N DPRB 18,155.00 PROD1 ROTATE AND RECIPROCATE F/18,117'TO 18,155'TD -ESTABLISH CIRCULATION AND PUMP 185 BBL 40#BBL LCM -275 GPM,1960 PSI -50 RPM,7/8K TQ -LOSS RATE WHILE PUMPING 250 BBLMR -SPR 018,155'MD/8,880'TVD W/8.6 PPG MW -MP#1 20/30 SPM=740/840 PSI -MP#2 20/30 SPM=700/820 PSI -MONTtOR WELL 10 MIN. 0730 - 12.00 4.50 DRILL N DPRB 18,155.00 PROD1 BACK REAM OOH F/18,155'TO 14,604' -250 GPM,1,400 PSI -100 RPM,6/8K TQ -OVERPULL INCREASE TO 20KAND TORQUE INCREASE TO 12K 0 16,880' REAM F/16,880'TO 16,790'2X, -WORK PAST SPOT WITH NO ROTARY OR PUMP.OK -TOTAL MUD LOSS FOR TOUR=647 BBL 12-00 - 18:00 6.00 DRILL N DPRB 18.155.00 PROD1 BACK REAM OOH F/14,604'TO 14,430' -250 GPM,1,400 PSI -100 RPM,6/8K TQ -OVERPULL INCREASE TO 20KAND TORQUE INCREASE TO 12K 0 14,465' -REAM F/14,500'TO 14,430'2X -WORK PAST SPOT WITH NO ROTARY OR PUMP.OK -CONT PUMP OOH F/14,430'TO 11,535' 18:00 - 19:00 1.00 DRILL N DPRB 18,155.00 PROD1 CIRCULATE BOTTOMS UP 0 11,535' -300 GPM,1,700 PSI -DYNAMIC LOSS RATE=198 BBUHR 19-00 - 19:30 0.50 DRILL P PROD1 RIG SERVICE -SERVICE AND CHECK TDS AND DRAWWORKS. • 19:30 - 21:00 1.50 DRILL P PROD1 CHANGE OUT SAVER SUB ON TDS. -MONTIOR WELL WITH TRIP TANK. 21 00 - 00:00 3.00 DRILL N DPRB 18,155.00 PROD1 RIH F/11,535'TO 14,285' -TIGHT SPOTS©11,900'AND 14,285' '-ABLE TO WORK THROUGH W/126 GPM,500 PSI AND 15 RPM -MUD LOSS FOR TOUR=411 BBL 1/25/2014 00 00 - 02:00 2.00 DRILL N DPRB 18,155.00 PROD1 RIH F/14,285'TO 16,780' -TIGHT HOLE 0 14,460'30K DOWN -TIGHT HOLE 0 14,500',WORK THROUGH W/ 126 GPM,500 PSI,15 RPM,6K TQ. CONT RIH F/14,500'TO 16,780' -TIGHT HOLE©16,780'.UNABLE PASS WITH OUT ROTATION. 02:00 - 03.30 1.50 DRILL N DPRB 18,155.00 PROD1 PICK SINGLE FROM PIPE SHED AND REAM F/ 16,770'TO 16,800'3X -ATTEMPT TO WORK PAST AREA WITH NO PUMP OR ROTATION,NO SUCCESS -ABLE TO WORK PAST AREA WITH 15 RPM, 10K TQ PU=203K,SO=139,ROT=169 03:30 - 05:00 1.50 DRILL N DPRB 18,155.00 PROD1 RIH F/16,800'TO 18,155' TIGHT HOLE 017,800',30K,DRY WIPE IX OK. Printed 2/10/2014 10 09.05AM North America-ALASKA-BP Page 54 of 54 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:12/10/2013 End Date:1/26/2014 X3-011M4-C:(13,544,400.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task • Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:00 - 07:30 2.50 DRILL N DPRB 18,155.00 PROD1 CIRC BOTTOMS UP F/18,155' TO 18,110' ROTATE AND RECIPROCATE PIPE -275 GPM,1,800 PSI -120 RPM,7K TQ DYNAMIC LOSS RATE=300 BBU HR -PUMP 80 BBL 40#BBL LCM PILL 07:30 - 08:00 0.50 DRILL N DPRB 18,155.00 PROD1 'MONTIOR WELL -30 BBL FLOW BACK IN 5 MIN,25 BBL IN SECOND 5 MIN,16 BBL IN THIRD 5 MIN,11 BBL IN FINAL 5 MIN. _ 08:00 - 10:00 2.00 DRILL N DPRB 18,155.00 PROD1 PUMP OOH F/18,155'TO 16,700' -143 GPM,700 PSI -PULLED 25K OVER©16,790',16,766' -RIH BACK TO 16,880'NO PUMP OR ROTARY, OK -PUMP OOH TO 16,700. 10:00 - 12:00 2.00 DRILL N DPRB I 18,155.00 PROD1 CONT PUMP OOH F/16,700'TO 15,169' -147 GPM,625 PSI •-TOTAL MUD LOSS FOR TOUR=664 BBL 12:00 - 17:30 5.50 DRILL N DPRB 18,155.00 PROD1 'CONT PUMP OOH F/15,169'TO 11,470' -147 GPM,600 PSI PULLED 20 K OVER @ 14,420',WORK TIGHT SPOT. WIPE THROUGH SPOT WITH NO ROTARY, NO PUMP,OK HELD PLANNING MEETING ON UPCOMING LINER RUN W/BAKER,HES,PACKERS PLUS AND RIG SUPERVISORS 17:30 - 19:30 2.00 DRILL N DPRB 18,155.00 PROD1 CIRCULATE BOTTOMS UP ROTATE AND RECIPROCATE PIPE F/11,470' TO 11,380' -300 GPM,1595 PSI - 100 RPM,7K TQ - 653 UNITS GAS SEEN©BOTTOMS UP,MUD CUT TO 8.0 PPG - DYNAMIC LOSS RATE=340 BBL HR 19:30 - 20:00 0.50 DRILL P PROD1 PJSM ON SLIP/CUT DRILLING LINE -MONITOR WELL 20:00 - 21:00 1.00 DRILL P PROD1 SLIP/CUT DRILLING LINE -RECALIBRATE BLOCK HEIGHT,AMPHION, TOTCO,SLB 21.00 - 00.00 3.00 DRILL N DPRB 18.155.00 PROD1 CONT PUMP OOH DUE TO SWABBING EFFECT F/11,470'TO 8,999' -105 GPM,360 PSI -TOTAL MUD LOSS FOR TOUR=290 BBL 1/26/2014 00:00 - 05:00 5.00 DRILL N DPRB 18,155.00 PROD1 CONT PUMP OOH DUE TO SWABBING EFFECT F/ 8,999'TO 5,200' -105 GPM,360 PSI -MONTIOR HOLE FOR FLUID DROP WHILE POOH. 05:00 - 07:30 2.50 DRILL N DPRB 18,155.00 PROD1 CONT POOH ON ELEVATORS F/5,200'TO 460" -MONITOR WELL @ TOP OF BHA 07:30 - 09:00 1.50 DRILL N DPRB 18,155.00 PROD1 LAY DOWN BHAAS PER SLB DD -BIT GRADE 2-2-WT-A-E-1-NO-TD 09:00 - 09:30 0.50 DRILL P PROD1 I CLEAN AND CLEAR FLOOR. -SWITCH REPORT TO CON EVENT @ 09:30 HRS 01/26/2014 Printed 2/10/2014 10:09:05AM North America-ALASKA-BP Page 1 of 7 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:1/26/2014 End Date 1/31/2014 X3-011M4-C:(5,701,800.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 1/26/2014 09:30 - 10:30 1.00 CASING P RUNPRD RIG UP TO RUN 4 1/2"PRODUCTION LINER -PU CASING TONGS AND MU SAFETY VALVE 10:30 - 11:00 0.50 CASING P RUNPRD PJSM W/BP WSL,HALLIBURTON,PACKERS PLUS,BAKER REPS AND RIG CREW ON PU AND RUN 4 1/2"PRODUCTION LINER W/ SWELL PACKERS 11:00 - 12:00 1.00 CASING P RUNPRD MAKEUP SACRIFICIAL 4 3/4"MUD MOTOR AND 6 1/8"BIT,XO,FLOAT COLLAR TOTAL MUD LOSS FOR TOUR=202 BBLS 12:00 - 23:00 11.00 CASING P RUNPRD RUN 4 1/2" 21 JTS 12.6#/129 JTS 13.5#13 CR-85 HYDRIL 521 LINER 1 -CHECK FLOAT EQUIPMENT,OK -RIH F/41'TO 6,789' 23:00 - 00:00 1.00 CASING P RUNPRD PU 5"X 7"BAKER HRD-E LINER HANGER INSTALL"PAL"MIX AND BREAK CIRCULATION W/63 GPM,250 PSI -TOTAL MUD LOSS FOR TOUR=250 BBLS 1/27/2014 00.00 - 01:30 1.50 CASING P RUNPRD CIRCULATE 1.5X DP AND LINER VOLUME -RECIPROCATE LINER F/6,770 TO 6,740', WHILE CIRCULATING -105 GPM,290 PSI -136 BBLS LOST WHILE CIRCULATING 01:30 - 05 00 3.50 CASING P RUNPRD RIH W/4 1/2"12.6#/13.5#13 CR-85 HYDRIL 1 521 LINER ON 4"DRILL PIPE 1-F/6,789'TO 11,525' -FILL PIPE EVERY 10 STANDS. I-LOST 252 BBL WHILE RIH 05 00 - 07 00 2.00 CASING P RUNPRD BREAK CIRCULATION©11,525' -STAGE PUMPS UP F/21 GPM TO 126 GPM. CIRCULATE DRILL PIPE AND LINER VOLUME -OBTAIN ROTATING AND PU/SO 1 PARAMETERS PRIOR ENTERING OPEN HOLE. -84 GPM,440 PSI,10 RPM 6K TQ,15 RPM 5K TQ -126 GPM,570 PSI,10/15 RPM,5K TQ 07:00 - 12:00 5.00 CASING P RUNPRD 'RIH W/4 1/2"12.6#/13.5#13 CR-85 HYDRIL 521 LINER ON 4"DRILL PIPE -F/11,525TO 18,155'TD SET DEPTH CO 18,154'. -PUMP THROUGH TIGHT SPOTS @ 15,122', .16,770'W/SACRIFICIAL 4 3/4"MUD MOTOR - 84 GPM,440 PSI -FILL PIPE EVERY 10 STANDS. -TOTAL MUD LOSS FOR TOUR=594 BBLS 12:00 - 13:00 1.00 CASING P RUNPRD CIRCULATE OPEN HOLE VOLUME 111 BBLS PRIOR TO DROPPING SETTING BALL -126 GPM,760 PSI Printed 2/10/2014 10:09:51AM North America-ALASKA-BP Page 2 of 7 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:1/26/2014 End Date:1/31/2014 X3-011M4-C:(5,701,800.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:00 - 15:00 2.00 CASING P RUNPRD PUMP 20 BBL HI-VIS PILL,DROP SETTING BALL,CHASE W/15 BBL HI-VIS PILL -BALL ON SEAT W/2031 STKS/1,500 PSI. HOLD 5 MIN,INCREASE TO 2,800 PSI TO SET HANGER. -SET DOWN W/60K TO CONFIRM HANGER SET. -INCREASE TO 3,800 PSI TO RELEASE HRD. -PU AND EXPOSE DOG SUB,SLACK OFF TO 50K TO SET ZXP LINER TOP PACKER.AS PER BOT REP. I-GOOD SURFACE INDICATION OF SET SEEN ON WT INDICATOR©25K DOWN -PU AND SET BACK DOWN W/25 RPM AND 25K TO CONFIRM ZXP SET. -HANGER @ 11,404',TOL @ 11,372'MD -TOTAL MUD LOSS FOR TOUR=907 BBLS 15:00 - 16:00 1.00 CASING P RUNPRD WITH RS PACK-OFF AND RUNNING TOOL STILL IN LINER -CLOSE UPPER PIPE RAM AND CHART TEST ZXP LINER TOP PACKER TO 250 PSI LOW 5MIN/4,000 PSI HIGH 30 MIN 1-SUCCESSFUL TEST -MONITOR WELL ATP GIVEN BY WTL 16:00 - 17:30 1.50 CASING P RUNPRD PUMP 50 BBL HI-VIS SPACER AHEAD AND DISPLACE WELL TO 8.5 SEAWATER 420 GPM,2,300 PSI 17.30 - 00:00 6.50 CASING P RUNPRD DRILL PIPE MANAGEMENT POOH LAYING DOWN 4"DP -LAY DOWN 67 DOUBLES TO PIPE SHED -LAY DOWN 120 SINGLES TO PIPE SHED 1/28/2014 00:00 - 04:00 4.00 CASING P RUNPRD DRILL PIPE MANAGEMENT POOH F/3,390'TO SURFACE LAYING DOWN DRILL PIPE,108 SINGLES 04:00 - 04:30 0.50 CASING P RUNPRD CHANGE OUT SLIP INSERTS -INSPECT LINER RUNNING TOOL BY BOT REP,CONFIRM DOG SUB SHEARED. %-LAY DOWN RUNNING TOOL 04:30 - 05:00 0.50 CASING P RUNPRD RIG SERVICE -GREASE AND INSPECT BLOCKS,TDS,AND SLIPS 05:00 - 14:00 9.00 CASING P RUNPRD DRILL PIPE MANAGEMENT -MU STACK WASHER ON DP AND RIH W/4" DP FROM DERRICK -POOH LAYING DOWN SINGLES 14:00 - 14:30 0.50 CASING P RUNPRD CLEAN AND CLEAR RIG FLOOR OF DP HANDLING EQUIPMENT _ 14.30 - 17:00 2.50 RUNCOM P RUNCMP PREPARE FOR RUNNING 4-1/2"12.6#VAM 'TOP TUBING -PULL WEAR RING -WASH BOP STACK OF ANY DRILLING DEBRIS -8BPM,50PSI,50 RPM -FUNCTION TEST ALL RAMS AND FLUSH AGAIN -PULL PS-21 SLIPS,STRIP-O-MATIC -PULL 22"LOW PRESSURE RISER AND REPLACE BOTH AIRBOOTS Printed 2/10/2014 10:09:51AM North America-ALASKA-BP Page 3 of 7 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:1/26/2014 End Date:1/31/2014 X3-011M4-C:(5,701,800.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/me:7/5/1981 12:00:OOAM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UW:500292058700 Active datum:Y-10B Actual ai90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth j Phase Description of Operations (hr) (usft) 17:00 - 18:00 1.00 RUNCOM P RUNCMP TUBING HANGER DUMMY RUN PU LANDING JOINT AND MAKE TUBING HANGER DUMMY RUN WITH CAMERON REPRESENTATIVES PRESENT -GRAY NEW STANDARD 13"X 4-1/2"MCA RUNNING THREAD -4-1/2"TC-II BOTTOM, 4"TYPE"H"BPV PROFILE -MARK LANDING JOINT AT ROTARY TABLE I-LAY DOWN LANDING JOINT AND HANGER 18:00 - 20:00 2.00 RUNCOM P RUNCMP PREPARE FOR RUNNING 4-1/2'12.6 13CR-85 VAMTOP TUBING !-MOVE JEWELRY FROM CASING SHED TO PIPESHED -HOLD PJSM WITH WSL,TOOL PUSHER, CASING HAND,HES REPS,AND DRILLING CREW -REVIEW CORRECT TUBULAR RUNNING PROCEDURE AND WELL CONTROL PLAN MU XO FROM 4-1/2"12.6#VAM TOP TO 3-1/2 IF FOSV AND STAGE ON RIG FLOOR. -CHANGE OUT 4-1/2"VT X 3 1/2 IF XO DUE TO PIN THREAD DAMAGE 20:00 - 20:30 0.50 RUNCOM P RUNCMP RIG SERVICE -PERFORM WEEKLY DERRICK INSPECTION -SERVICE TOP DRIVE AND BLOCKS C/0 WASHPIPE ON TOP DRIVE 20:30 - 00:00 3.50 RUNCOM P RUNCMP RUN 41/2"12.6#13CR-85 VAM TOP TUBING TO 2,599'MD. -RUN TUBING PER HES AND BP COMPLETION ORDER -BAKER LOCK ALL CONNECTIONS BELOW PACKER -INSPECTAND VERIFY RHC-M PLUG SET IN BOTTOM"X"NIPPLE BELOW PACKER -UTILIZE DOG COLLARS UNTIL 15K LBS HANGING FROM ELEVATORS 1/29/2014 00:00 - 06:00 6.00 RUNCOM P RUNCMP RUN 4-1/2"12.6#13CR-85 VAM TOP TUBING TO 7,319'MD. -RUN TUBING PER HES AND BP COMPLETION ORDER MONITOR WELLBORE VIA TRIP TANK 06:00 - 07:30 1.50 RUNCOM N WAIT 18,155.00 , RUNCMP WAIT FOR SLB TO INSPECT DCK SHEAR VALVE IN GLM ASSEMBLY. 107:30 - 08:00 0.50 RUNCOM P RUNCMP UD GLM VALVE ASSEMBLY TO VERIFY SHEAR VALVE INSTALLED(VISUALLY VERIFIED) 08:00 - 09:30 1.50 RUNCOM P RUNCMP RUN 4-1/2"12.6#13CR-85 VAM TOP TUBING COMPLETION TO 8,760'MD. -RUN TUBING PER HES AND BP COMPLETION ORDER MONITOR WELLBORE VIA TRIP TANK 09:30 - 12:00 2.50 RUNCOM P RUNCMP M/U SLB SURFACE FORMATION ISOLATION VALVE(SFIV). -R/U DUAL CONTROL LINES AND INSTALL ON SFIV Printed 2/10/2014 10.09:51 AM North America-ALASKA-BP Page 4 of 7 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:1/26/2014 End Date:1/31/2014 X3-011M4-C:(5,701,800.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual 190.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 15:00 3.00 . RUNCOM P RUNCMP R/U EQUIPMENT TO TEST SLB SFIV AND 1 LINES. '-PRESSURE UP TO 5,000 PSI FOR 5 MIN -BLEED OFF PRESSURE TO 500 PSI AND FUNCTION VALVE OPEN 500 PSI BLED OFF CONFIRMING THAT SFIV IWAS OPEN -RIG DOWN TESTING EQUIPMENT 15:00 - 20:30 5.50 RUNCOM P RUNCMP RUN 4-1/2"12.6#13CR-85 VAM TOP TUBING COMPLETION TO 11,376'MD. PU=150 K,S0=130K -TAG 24'IN ON JOINT#266 -TAGGED NO GO AT 11,388'MD,35'IN ON JOINT#266 -SPACE OUT AND UD JOINTS#266,265,264 -P/U SPACE OUT PUP JOINTS(9.71'AND 120.74')AND JOINT#264 WLEG @ 11,378'MD -USED 62 FULL CANNON CLAMPS,1 OFFSET CLAMP,4 SS BANDS. MONITOR WELLBORE VIA TRIP TANK 20:30 - 23:30 3.00 RUNCOM P RUNCMP P/U LANDING JOINT AND HANGER AND LAND IN PROFILE -TERMINATE CONTROL LINES AND DRAIN STACK -LAND WLEG—5.5'INSIDE 11'TBR CAMERON RUN IN LOCK DOWN SCREWS. 23:30 - 00:00 0.50 RUNCOM P RUNCMP FUNCTION TEST SFIV -TEST SURFACE LINES TO 4,000 PSI FOR 5 MIN - CYCLE FIV TO CLOSED POSITON AND TEST SFIV TO 4,000 PSI FOR 5 MIN 1/30/2014 00:00 - 01:00 1.00 RUNCOM P RUNCMP FUNCTION TEST SFIV -BLEED OFF PRESSURE TO 500 PSI AND CYCLE VALVE -500 PSI BLED OFF CONFIRMING SFIV WAS OPEN 01:00 - 01:30 0.50 RUNCOM P RUNCMP i RIG UP TO REVERSE CIRCULATE -FLOOD AND TEST SURFACE LINES -250 PSI LOW FOR 5 MIN/3,000 PSI HIGH FOR 5 MIN 01:30 - 05:00 3.50 RUNCOM P RUNCMP LINE UP AND REVERSE CIRCULATE -180 BBLS SEAWATER -140 BLLS SEAWATER WITH CORROSION INHIBITOR i -160 BBLS SEAWATER Printed 2/10/2014 10:09:51 AM North America-ALASKA-BP Page 5 of 7 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:1/26/2014 End Date:1/31/2014 X3-011M4-C:(5,701,800.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:00 - 07:00 2.00 RUNCOM P RUNCMP DROP BALL AND ROD -PRESSURE TEST TBG 250 PSI LOW/5 MIN -INCREASE PRESSURE TO 4,000 PSI TO SET PACKER,PACKER SET @ 1,900 PSI - HOLD PRESSURE TO CHART TEST. -SLIGHT LEAK ON 4-1/2"VT XO,BREAK OUT, CLEAN AND VISUALLY INSPECT FOR DAMAGE. -REDOPE AND MAKE UP. -PRESSURE TEST TBG 250 PSI LOW/5 MIN, INCREASE PRESSURE TO 4,000 PSI -HOLD PRESSURE TO CHART TEST FOR 30 MIN. -BLEED TBG PRESSURE DOWN TO 2,600 PSI AND SHUT IN -LINE UP TO PUMP DOWN IA 07:00 - 08:00 1.00 RUNCOM P RUNCMP TEST 4-1/2"X 7"PACKER AND IA -250 PSI LOW FOR 5 MIN/4,000 PSI HIGH FOR 30 MIN -DECISION MADE TO RETEST DUE TO CHART OSCILLATION CAUSED BY THERMAL EXPANSION IN CHART RECORDER LINES. 08:00 - 08:30 0.50 RUNCOM P RUNCMP TEST 4-1/2"X 7"PACKER AND IA BLEED OFF IA PRESSURE TO 0 PSI,TUBING PRESSURE HAS BEEN HELD CONSTANT AT 2,600 PSI -RE-RUN CHART RECORDER LINES -PRESSURE UP ON IA TO 4,100 PSI,NOTICE TBG PSI INCREASING WITH IA AT 3,600 PSI -SHUT DOWN AND BLEED PRESSURE OFF BOTH IA AND TUBING -BBLS BLED BACK=7 BBLS.SAME VOLUME REQUIRED TO PRESSURE UP. -AFTER INSPECTION IT APPEARS THAT SHEAR VALVE SHEARED AT TUBING PRESSURE=3,500 PSI AND ANNULAR PRESSURE=3,700 PSI. 08:30 - 10:00 1.50 RUNCOM N WAIT 18,155.00 RUNCMP WAIT ON PLAN FORWARD -HOLD PRE-SPUD MEETING WITH TOWN FOR NEXT WELL X-04A 10:00 - 11:00 1.00 RUNCOM N DFAL 18,155.00 RUNCMP CONDUCT COMBINED MIT-TBG X IA -250 PSI LOW FOR 5 MIN/4,000 PSI HIGH FOR 30 MIN -ISOLATE IA TO SENSOR,PUMP DOWN TUBING -TUBING AND IA PRESSURE CLIMBING TOGETHER -ABORT TEST AND BLEED OFF PRESSURE DUE TO SENSATOR ISSUE -CHANGE OUT IA SENSATOR AND RE-TEST 11:00 - 12:00 1.00 RUNCOM N DFAL 18,155.00 RUNCMP CONDUCT COMBINED MIT-TBG X IA -250 PSI LOW FOR 5 MIN/4,000 PSI HIGH FOR 30 MIN -ISOLATE TUBING TO SENSOR AND PUMP DOWN IA -TUBING AND IA PRESSURE CLIMBING TOGETHER -HOLD PRESSURE TO CHART FOR 30 MIN Printed 2/10/2014 10:09:51AM North America-ALASKA-BP Page 6 of 7 Operation Summary Report Common Well Name:Y-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:1/26/2014 End Date: 1/31/2014 X3-011M4-C:(5,701,800.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor:DOYON DRILLING INC. UWI:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) _ 12:00 - 13:00 1.00 RUNCOM P RUNCMP 'VERIFY FLOW PATH BETWEEN IA AND TUBING -PUMP 5 BBLS DOWN IA AT 2 BPM,PSI=1,010 -PUMP 5 BBLS DOWN TBG AT 2 BPM,PSI= 1.015 -PUMP 5 BBLS DOWN IA AT 2 BPM,PSI= 1.007 13:00 - 14:00 1.00 RUNCOM P RUNCMP PRESSURE TEST LINES TO FREEZE PROTECT -250 PSI LOW FOR 5 CHARTED MIN/3,000 PSI HIGH FOR 5 CHARTED MIN 14:00 - 14:30 0.50 RUNCOM P RUNCMP PREPARE TO FREEZE PROTECT REPLACE HALLIBURTON VALVE ON TUBING HOLD PJSM WITH CREW AND BP REP -LINE UP TO REVERSE CIRCULATE DIESEL 14:30 - 16:30 2.00 RUNCOM P RUNCMP FREEZE PROTECT 1-REVERSE CIRCULATE 156 BBLS OF 80 DEG ARCTIC GRADE DIESEL -PUMP AT 1.5 BPM,ICP=630 PSI,FCP=1,207 PSI 16:30 - 19:00 2.50 RUNCOM P RUNCMP ALLOW IA AND TUBING TO U-TUBE TO 300 PSI -BLEED OFF TO DIESEL TANK,-1 BBL RECOVERED SIM-OPS -R/U TONG FOR LANDING JOING XO -DISASSEMBLE DUTCH RISER ADAPTER, •PM'S -PUMP-1 BBL FROM IA TO DIESEL TANK, DRAINING THE LANDING JOINT -L/D LANDING JOINT -SPILLED 1 GALLON DIESEL ONTO RIG FLOOR,DUE TO VALVE INADVERTENTLY LEFT OPEN. 19:00 - 21:30 2.50 RUNCOM P RUNCMP DRY ROD AND TEST TWC -M/U LANDING JOINT AND R/U TEST EQUIPMENT -UNLOCK AND REALIGN INJECTION PUMP -CHECK ALL ALIGNMENTS AND SENSATORS TEST TWC FROM ABOVE -250 PSI LOW FOR 5 CHARTED MIN/3,500 PSI HIGH FOR 5 CHARTED MIN TEST TWC FROM BELOW -250 PSI LOW FOR 5 CHARTED MIN/3,500 PSI HIGH FOR 5 CHARTED MIN -BLEED OFF PRESSURE AND BREAKDOWN CIRCULATION LINES _ 21:30 - 22:30 1.00 RUNCOM P RUNCMP RIGDOWN AND LAYDOWN ALL LINES 22:30 - 00:00 1.50 RUNCOM P RUNCMP NIPPLE DOWN BOP -PULL PS-21 SLIPS AND REMOVE LOSE PRESSURE RISER -REMOVE KILL AND CHOKE LINES -REMOVE STRIP-O-MATIC,RETRACT FLOW BOX 1/31/2014 00:00 - 01:30 1.50 BOPSUR P WHDTRE NIPPLE DOWN RISER AND SPACER SPOOL 01:30 - 02:30 1.00 WHSUR P WHDTRE PREPARE ADAPTER FLANGE AND TERMINATE SLB CONTROL LINES -CLEAN AND CLEAR RIG FLOOR • REMOVE KELLY HOSE Printed 2/10/2014 10:09:51 AM North America-ALASKA-BP Page 7 of 7 Operation Summary Report Common Well Name.Y-10 AFE No Event Type:COM-ONSHORE(CON) Start Date:1/26/2014 End Date:1/31/2014 X3-011M4-C:(5,701,800.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/5/1981 12:00:00AM Rig Release:1/31/2014 Rig Contractor.DOYON DRILLING INC. UW:500292058700 Active datum:Y-10B Actual©90.54usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 02:30 - 04:00 1.50 WHSUR P WHDTRE NIPPLE UP DRY HOLE TREE -BRIDLE UP AND PREPARE TO SCOPE DERRICK 04:00 - 05:00 1.00 WHSUR P WHDTRE TEST ADAPTER FLANGE - 250 PSI LOW/5,000 PSI HIGH 5 CHARTED 1 MIN EA. 1-SCOPE DERRICK AND B/D PIT COMPLEX WATER -B/D STEAM LINES IN BOP DECK -R/D PIT COMPLEX INTERCONNECT 05:00 - 05:30 0.50 WHSUR P WHDTRE FILL TREE WITH DIESEL AND TEST -250 PSI LOW/5,000 PSI HIGH 5 CHARTED MIN EA. -BRIDLE DOWN AND PIN TOP DRIVE BLOCKS. SPOOL 10 WRAPS OFF DRAWWORKS DRUM. 05:30 - 06:00 0.50 WHSUR P WHDTRE RIG DOWN TEST EQUIPMENT AND REMOVE ANNULUS VALVES -INSTALL TREE CAP CLEAN AND SECURE CELLAR. -RIG RELEASED©06:00 HRS 01-31-2014 Printed 2/10/2014 10:09:51AM �y pN.0 pp o papp �p y V♦Np5 WOWCIN rQ_N�f <O t701m` -aa W nN Ran IRAL7-2 YaWa i+Sr ao�O OOi�rm coW CO 19CNNNWl7 g' t g g g 33" EM'i IsZti�7iQi uR($y� {�E(� avR]u+pN�iaivMiu`�'i •v"i`up3�pNn u�Ngs,Mn �Mifi _ d J 00mmI §p§ap§g§ 02552•"! 2 W m aWp W W W pO�ppCpmC�D 00505 ��C�EE L W� m Z Q OaYOVd OQYOQ QNY00 440YV VYY00 O<OYO 00«/ voaaY 54) 0. yy{{ WOC88S'44:12 38W';,ThOiO '0nt2raR3V1NW *.mmN ...ro2 _ . 00a ����� 5N. 0rnv<W$ 0t- _ A 2 o miom .OD 0. . 0 a m - 00-.- rnrn Wn n rr�rp rrrrn nrnnn rrrrr rnnrr nrnrn r 0 J N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N '66g6 rp mRRRO!R ORRRA ^RNOO ^000^ ORRRR AONOO RAnon R .„0.1 DA ---"g N8''R NNNOW OWRa' 80�NN.- .00.-0A 08038 80008 r tv c ryao � G WNNN r W W 0) 00Olo .41' NNB O Otto N666t� rrW aC W 66666 OOOryN W t^N08b N W' aiaaa i ii alma iasai saaia algal iaaam aaaia a • C^ O W?q IQ','K maA W N vr)at4) 19.96$. ..,-..af. 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The Doyon 25 rig closed their annular preventer to perform an exhale test on a well with well bore breathing. The exhale test confirmed that the well was breathing back a small amount of drilling mud, due to fluid to swat were encountered when drilling this hole section. The attached report contains full details of the event. BOPE will be tested when the BHA is out of the hole. 24 hours notification has been given to the AOGCC North Slope inspectors. Full-details can be found in the attached report. Please contact me if you have additional questions. Thank you, Greg Greg Sarber Operations Superintendent Rotary Drilling +1 (907)659-5329(Office-slope) +1 (907)242-8000(Cell Phone) Harmony 2157 Alternate: Darrell Green 1 Blow Out Preventer Equipment ( BOPE ) Usage Report to the AOGCC The purpose of this document is to ensure timely reporting to the AOGCC of any BOPE use to prevent the flow of fluids from a well. Field Superintendent Name: Greg Sarber Wellsite Leader Name: Bret Cook Contact Number: 659-5329 Contact Number: 659-5856 Traction Number: Well Location/Name & Rig Name: Y-10B, Doyon 25 - Permit To Drill (PTD) Number: 212021 Date and Time of Incident: January 8, 2014 09:30 hrs Original Scope of Work: Drilling ahead in the 6 1/8 production hole section. Operational Description Leading up to Well Control Event: The rig needed to pull out of the hole for a BHA swap. Prior to pulling off bottom a flow check was conducted and flow was observed. This was suspected to be wellbore breathing, as losses had been encountered during the drilling on this hole section and breathing had been observed on previous connections when drilling this hole section. Diminishing flow was observed, however, as an operational assurance the rig team shut the well in to monitor for pressure and perform an exhale test. After closing the annular preventer, there was no pressure observed on the drill pipe and 50 psi observed on the casing. The choke was then opened up, the pressure bled off, and the well was observed to be static, with no flow from the well. The rig team rolled the pumps to prevent equipment from freezing up and ensure everything was fluid packed. It took 6 bbls of mud to fluid pack the well and surface lines. The well was then shut back in and pressure climbed to 50 psi on the casing and remained there for 15 min. The choke was then opened up and an exhale test was performed. The well flowed back 2.2 bbls over 30 minutes, with the volume diminishing over each 5 min increment that was recorded. BOPE Used and Reason: Annular Preventer. To perform an exhale test. Is a BOPE Test Required after use ( Yes / No): If no, why? Yes, when BHA recovered to surface. 24 hours notification has been given to the AOGCC North Slope Inspectors. 24 hour notice required to NS AOGCC Inspectors prior to testing BOPE components. Plan Forward: Plan Forward: The rig team will finger print the breathing volumes and rate, and will circulate out of the hole until at the casing shoe. At the shoe, an additional flow check will be performed to confirm the same breathing characteristics as observed at TD. All fluid volumes will continue to be monitored and be recorded on Driller trend sheet. This event will be entered in the BP Traction reporting system as per Anchorage Leadership guidelines. Additional Comments: BOPE Usage Report for AOGCC Rev 1 September 1, 2010 Email to AOGCC North Slope Inspectors within 24 hours of the incident: doa.aogcc.prudhoe.bay@,alaska.gov Email CC List Well Integrity Team Leader: WTL HSE Advisor: Engineering Team Leader: Wells Operations Manager: Wells Intervention Manager: Organizational Capability BOPE Usage Report for AOGCC Rev 1 September 1, 2010 Pt V--Ioi Pry zlzorta Regg, James B (DOA) From: Green, Darrell [Darrell.Green@bp.com] Sent: Tuesday, January 07, 2014 6:50 AM To: DOA AOGCC Prudhoe Bay; Rossberg, R Steven; Burnett, Richard D; Willingham, James M; Isaacson, William S; Kilfoyle, Jeffery A; Cismoski, Doug A; Smith, David; Cook, Bret; Madsen, Alan D; Sarber, Greg J; Staudinger, Garret Subject: BOP Usage Form 1-6-14 Doyon 25 Attachments: Y-10B BOP 1-6=14 usage Doyon 25.doc Here is the BOP usage form for our exhale test last night on Doyon 25 «Y-10B BOP 1-6=14 usage Doyon 25.doc>> Darrell W. Green GPB Rotary Field Superintendent BP Alaska Drilling& Wells 907-659-4619(North Slope Office) 907-229-2879(Cell) 7399-Harmony Radio ><((((o>•.,,.•' ><((((°> • •, , • ><((((>'• ><((((°> 1 Blow Out Preventer Equipment ( BOPE ) Usage Report to the AOGCC The purpose of this document is to ensure timely reporting to the AOGCC of any BOPE use to prevent the flow of fluids from a well. Field Superintendent Name: Darrell Green Wellsite Leader Name: Bret Cook/ David Smith Contact Number: 659-4618 Contact Number: 659-5856 Traction Number: Well Location/Name & Rig Name: Y-10B, Doyon 25 Permit To Drill (PTD) Number: 212021 Date and Time of Incident: January 6, 2014 23:00 hrs Original Scope of Work: Drilling ahead in the 6 1/8 production hole section. Operational Description Leading up to Well Control Event: While drilling production hole the rig saw some losses to the formation. The pumps were shut down and flow was noted at the bell nipple above trend sheet pre-recorded volumes. The well was shut in with zero SI:PP, zero ICP. An exhale test was conducted with no flow back in 15 minutes. The well was confirmed dead and approved to open- back penback up. Circulation was established drilling resumed. BOPE Used and Reason: Annular Preventer. To perform an exhale test. Is a BOPE Test Required after use ( Yes / No): Yes If no, why? 24 hour notice required to NS AOGCC Inspectors prior to testing BOPE components. Plan Forward: Plan Forward: Get approval to open well, monitor and resume drilling. Finger printing of subsequent connections to be recorded on Driller trend sheet. This event will be entered in Traction per Anchorage Leadership guidelines. Additional Comments: Email to AOGCC North Slope Inspectors within 24 hours of the incident: doa.aogcc.prudhoe.bavCc�alaska.gov Email CC List Well Integrity Team Leader: WTL HSE Advisor: Engineering Team Leader: Wells Operations Manager: Wells Intervention Manager: Organizational Capability BOPE Usage Report for AOGCC Rev 1 September 1, 2010 'rpt Pf 5fA_ l'&747- ,4 ,L174 Regg, James B (DOA) P 2-t3o41 From: Sloan Sunderland - (C) [ssunderland@hilcorp.com] V�e 1/7/14 Sent: Tuesday, January 07, 2014 6:30 PM ( To: Regg, James B (DOA); DOA AOGCC Prudhoe Bay; Brooks, Phoebe L (DOA) Cc: Shane Hauck; Paul Mazzolini; Rick Brumley-(C); Luke Keller; James Sweetsir- (C) Subject: RE: BOPE Test Report Attachments: photo.jpg MR Regg, we have reviewed our test charts back to when we started this rig.The charts all look the same with a little spike from pressure up. We are not opening any bleeders and bleeding off pressure. The pressure spikes from the sensor being close to the pump and having to go through 100' +1-of%2 inch hose. Basically our needle is jumping while pumping and when we stop pumping it stops at the actual pressure. I will look in to fixing this problem. However our canrig sensors do not show the spike dew to it being an electric sensor and not a bladder. I have attached the last state whiteness test chart from 12-7-2013 with MR John Crisp. The chart shows the same spike. Please let us know if there are any further questions. From: Regg, James B (DOA) [mailto:jim.regg@alaska.gov] Sent: Tuesday, January 07, 2014 12:53 PM To: Sloan Sunderland - (C) Cc: Shane Hauck; Paul Mazzolini; Luke Keller; James Sweetsir - (C); DOA AOGCC Prudhoe Bay; Brooks, Phoebe L (DOA) Subject: RE: BOPE Test Report Each component group low pressure test(250-350psi required) shows pressure initially applied to approximately 500psi before being bled back to 250-300 psi for the required 5 minute test. If this accurately describes the low pressure test practice, it conflicts with API RP 53, Section 17.3.2.1 (incorporated in AOGCC regulations at 20 AAC 25.527): "When performing the low pressure test, do not apply a higher pressure and bleed down to the low pressure. The higher pressure could initiate a seal that may continue to seal after the pressure is lowered and therefore misrepresenting a low pressure condition" (emphasis added). API Standard 53 (replaced RP 53 effective November 2012),Section 6.5.3.2.2 is worded exactly the same. Please explain the low pressure test as shown on the charts. Jim Regg Supervisor, Inspections AOGCC 333 W.7th Ave,Suite 100 Anchorage,AK 99501 907-793-1236 From: Sloan Sunderland - (C) [mailto:ssunderland@hilcorp.com] Sent: Thursday, December 26, 2013 5:22 PM To: Regg, James B (DOA); DOA AOGCC Prudhoe Bay; Brooks, Phoebe L (DOA) Cc: Shane Hauck; Paul Mazzolini; Luke Keller; James Sweetsir - (C) Subject: BOPE Test Report Thanks Sloan Sunderland 428 776-6627 1 cam . , , ,..yam, -a - -- 1 . , . ���.-^�""�� ,f r . £ .., -5.Q, / :- ---. --- Jr 1: cf,,,„/ ,.. t ii 1 ',, r''7 ,;;;:or { ,11:/OHART NO. MC MP-6000-47H 5ODIV j <r !' a /Z- s -3 ' 1,4 �3if _,/ I i i Mll {' :t € . JINN/ Wl L4_ 17 [} f . A ,,\ . . , ', ............. * ...,..:'-;. -...,,,.. -.,--.., -- --; .- -'--- ..,q,e.,,trwl, u-/-,,4,- ,,,'-,., \ ,., ',; ,...', :/ ,,,,.,'/7-• - "..1,-,1 /1.// i `,. ,, .€ t , I ihr „ //..- //.. ,„,, i f V c, it 7{•_ ._ "'' STATE OF ALASKA OIL AND GAS CONSERVATION COMMISSION BOPE Test Report Submit to: jim.reggalaska.gov AOGCC.I nsbectors@alaska.qov phoebe.brooks(a alaska.gov Contractor: Inlet Drilling Rig No.: 428 DATE: 12/25/13 Rig Rep.: McDowell/Williams Rig Phone: 776-6628 Rig Fax: Operator: Hilcorp Alaska Op. Phone: 776-6627 Op. Fax: Rep.: Sunderland/Sweetsir E-Mail ssunderland@hilcorp.com Well Name: GranitePt St 18742 17A • PTD# 2130490 Operation: Drlg: x Workover: Explor.: Test: Initial: Weekly: Bi-Weekly X Test Pressure: Rams: 250/5000 ' Annular: 250/2500 • Valves: 250/5000 MISC. INSPECTIONS: TEST DATA FLOOR SAFETY VALVES: Test Result Test Result Quantity Test Result Location Gen.: P Well Sign P Upper Kelly 1 P • Housekeeping: P Drl. Rig P Lower Kelly 1 P - PTD On Location P , Hazard Sec. P Ball Type 1 P Standing Order Posted P Misc NA Inside BOP 1 P FSV Misc 0 NA BOP STACK: Quantity Size/Type Test Result MUD SYSTEM: Visual Alarm Stripper 0 NA Trip Tank P P Annular Preventer 1 13-5/8"5M P ' Pit Level Indicators P P #1 Rams 1 2-7/8x5-1/2 P Flow Indicator P P , #2 Rams 1 Blind P • Meth Gas Detector P P #3 Rams 1 2-7/8x5-1/2 P H2S Gas Detector P P #4 Rams 0 NA MS Misc 0 NA #5 Rams 0 NA #6 Rams 0 NA Quantity Test Result Choke Ln. Valves 2 3 1/8"gate P Inside Reel valves 0 NA HCR Valves 2 3 1/8"gate P Kill Line Valves 3 8"(2)gate(1) P , Check Valve 0 NA ACCUMULATOR SYSTEM: BOP Misc 0 NA Time/Pressure Test Result System Pressure 3000 P - CHOKE MANIFOLD: Pressure After Closure 1600 P Quantity Test Result 200 psi Attained 30 P No. Valves 16 P Full Pressure Attained 90 P Manual Chokes 1 P - Blind Switch Covers: All stations Yes Hydraulic Chokes 2 P Nitgn. Bottles (avg): 2110 CH Misc 0 NA ACC Misc 0 NA Test Results Number of Failures: v Test Time: 10.0 ' Hours Repair or replacement of equipment will be made within days. Notify the AOGCC of repairs with written confirmation to:AOGCC.Inspectors@alaska.gov Remarks: Tested all gas alarms with no failors. 24 HOUR NOTICE GIVEN YES x NO Waived By Jim Regg Date 12/19/13 Time 09:07 Witness Test start 12/25/13 050( Finish 12/25/2013 15:00 Form 10-424 (Revised 03/2013) 2013-1225_BOP_In1et428_GranitePt_State_18742_Anna-17A.xlsx s. .,�� Q o , � ,, , i o Li. - 4/ y� �� 1 � Mh 00N ' 1 r X4.4- 4 `.� _ el - ,. J r o d � \ � coI "~ N cN 64 .174 A I — 14 C7 H N a jam' v a/ H £ f 164`} d .','„'''?'1.;,.. 'W 5 ' 1 x.f ar 4 4 ‘e'';) r. 4 .... 3 4- III ppp ` ,,,,... ,f-,.., p .','-',^•"...-4......_6 r, � 2 � � � r . , \ -'- ' \\'''' ‘>,6 '''' 1 ' ;;:./' ' '".' ''.--' - , - czQ rA °O c J _ -}met ' co CC CI ai O co Nw 0 7. N elo a e • 4rY*3 ",z>".F ,,,„,-74.-•14,-. s s ,...• IN -W,1' .r ,. b ti rpn . — 'mit M# l ',-a t F t .1 Q c� P ! NI �� ,^ r t� V E tee ` ti k oo ✓ - - ._ . J t - rte-, C. cc wilifi_ N ti all a O tel w N 0 '—, M MV .-+ Oq oa 4.1 00 I a a> U 00 N O N w N 0 M G) o crs N PTD 2/2 --oz-/ � a q- -25-0 Ferguson, Victoria L (DOA) From: Ferguson,Victoria L(DOA) Sent: Wednesday, October 23,2013 9:31 AM To: 'Staudinger, Garret' Subject: RE:V-lOB PTD(212-021)and Y-10A(Sundry 312-050:plug for redrill) See below in red, I hope this helps. Thanx, Victoria Victoria Ferguson Senior Petroleum Engineer State of Alaska Oil&Gas Conservation Commission 333 W.7th Ave,Ste 100 Anchorage,AK 99501 Work: (907)793-1247 victoria.ferguson(a)alaska.gov From: Staudinger, Garret [mailto:Garret.Staudinger@bp.com] Sent:Tuesday, October 22, 2013 4:47 PM To: Ferguson, Victoria L(DOA) Cc: Lastufka, Joseph N Subject: Y-10B Permit To Drill and Sundry Victoria, The Y-10B Permit To Drill and Sundry for Y-10A both expire in February of 2014. Y-10B is the supporting injector for the recently drilled Y-13A. While running completion on Y-13A,the completion was dropped downhole. The completion was fished out, but several slip segments and other pieces of junk were left in the well. The intervention team is currently working to recover the fish that were left in the well. Due to the fact that it is unknown if Y-13A will be recovered (or ultimately a junked well),the drilling of Y-10B has been postponed until a later date. This date is based upon the fishing success in Y-13A. I have two questions for you: 1) Does the well have to be completed before the expiration date on the Sundry and Permit, or do they just have to start drilling the well before the expiration date? Start drilling the well before the expiration date. 2) If Y-10B is postponed until after the expiration date, do we need to submit a new Permit and Sundry? Yes. The Y-10A sundry(312-050) is a plug for redrill and was good for 12 months. It expired in 02/13. Thanks for the clarification on this. Please let me know if you have any questions. 1 Garret Staudinger BP Alaska Wells Operations Drilling Engineer Office: +1 907 564 4242 Cell: +1 907 440 6892 2 a E f._ fi �� pi' II I LI:1 A [L„[A\ SEA\ SEAN PARNELL, GOVERNOR �T v ALASKA COMMISSION O�OIL AND GAS333333 W.7th AVENUE,SUITE 100 CONSERVATION COM ISSIO1s ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 John Egbejimba FAX (907)276-7542 Engineering Team Leader BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Pool, PBU Y-10B BP Exploration (Alaska) Inc. Permit No: 212-021 Surface Location: 1410' FNL; 205' FEL, Sec. 33, T11N, R13E, UM Bottomhole Location: 4585' FNL, 4286' FWL, Sec. 34, T11N, R13E, UM Dear Mr. Egbejimba: Enclosed is the approved application for permit to re-drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, I N.- Daniel Daniel T. Seamount, Jr. Chair DATED this 22�day of February, 2012. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA RECEIVED 41 ALAS. _ .OIL AND GAS CONSERVATION COMMI__,O X00 PERMIT TO DRILL FEB 14 2012 20 AAC 25.005 1 a.Type of work: lb.Proposed Well Class: 0 Development Oil 0 Service-Winj 0 Single Zonje AiaStql§DeititiVANWOZIMIC4§191011 ❑ Drill ®Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zqne 0 CoalbGas Hydrates ❑ Re-Entry 0 Exploratory ®Service-WAG 0 Service-Disp i___J' _^_ Shale Gas 2. Operator Name: 5.Bond: ® Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU Y-10B 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 18452' TVD 8883' Prudhoe Bay/Prudhoe Bay 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Surface: ADL 028287 1410'FNL,205'FEL, Sec.33,T11 N, R13E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 4761'FNL,2120'FEL, Sec.33,T11 N, R13E, UM September 10,2012 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 4585'FNL,4286'FWL, Sec.34,T11 N, R13E, UM 2560 11582' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 85.70' feet 15.Distance to Nearest Well Open Surface: x- 644611 y-5948841 Zone- ASP4 GL Elevation above MSL: 50.09' feet to Same Pool: 387' 16.Deviated Wells: Kickoff Depth: 2770' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 107 degrees Downhole: 3243 Surface: 2360 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD ND MD ND (including stage data) 8-1/2" 7" 26# , L-80 `VamTop 9272' 2620' 2620' 11892' 8924' 226 sx Class'G' 6-1/8" 4-1/2" 12.6# 13CR85 VamTop 6728' 11724' 8793' 18452' 8883' 158 sx Class'G' • 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth ND(ft): Junk(measured): 11114' 8965' None 11074' 8967' None Casing Length, Size Cement Volume, MD ND Conductor/Structural 110' 20"x 30" 8 cu vds Concrete 110' 110' Surface 2709' 13-3/8" 3720 cu ft Permafrost II 2709' 2709' Intermediate 9464' 9-5/8" 1270 Cu ft Class'G'. 130 us ft PF'C' 9464' 8850' Production Liner 1285' 7" 336 cu ft Class'G' 8985'-9507' 8396'-8891' Liner 2120' 3-1/2"x 3-3/16" 163 cu ft Class'G'. 175 cu ft Class'G'225 cu ft, 8989'- 11109' 8399'-8965' Perforation Depth MD(ft): 10820'-11070' Perforation Depth ND(ft): 8996'-8968' 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 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Contact John Rose,564-5271 Printed Name John E bejimba Title Engineering Team Leader // a 13 /�^ Prepared By Name/Number. Signature - /� ' AirPhone 564-5859 Date / ("J` Joe Lastufka,564-4091 Commission'Use Only Permit To Drill A-I Num Permit Aproyal 4at . See cover letter for Number: a?/ O / ri/ I other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbecl methane,gas hydrates,or gas contained shales: RI Other:-4 yOOO loS` AS&P I '/ ,. Samples Req'd: D,Yes 1[I No Mud Log Req'd: E Yes �No Z5� S A h n u.cs —'/ ht-g-vi HA Measures: Yes 0 No Directional Survey Req'd: Yes ❑No P `� r�T'"r _7 — GC(ti m 4 j.eriA (-4" L( Ale) 3 .* C 34 £ M t r. fez, ti Z/ APPROVED BY THE COMMISSION 2_ 7( Date ,COMMISSIONER Form 10-401 Revise /2009 This permitivalid 1 r 24 months frtyRdiz I v# thAAC 25.005(g).)) i " 1/y/`InDuplicate by 0 Lite 664`zrliz' To: Alaska Oil&Gas Conservation Commission From: John Rose, ODE Date: February 28, 2012 Re: Y-10Bi Rotary Sidetrack Permit to Drill (Revised) The planned Y-10Bi rotary sidetrack is currently scheduled to be drilled by Doyon 25 beginning 9/10/12. The maximum anticipated surface pressure from the Sag with a full column of gas from TD to surface is 2360 psi (assume 7.06 ppg as max PP). This well will be drilled by Doyon 25 using their 5000 psi four preventer BOP stack(3 rams and an annular). The BOP's will be tested to 4000 psi. The sidetrack plan for the Y-10Bi includes the following: 1. The pre-rig well work will include; a. Pre-rig, perform a full-bore P&A cement job of the existing 3-1/2"x 3-3/16"coil production liner. b. Add a second P&A cement plug from TOC in step#1 to -7700' MD. c. Make tubing cut at 3500' MD. 2. Move in Doyon 25 and pull the 5-1/2"tubing from 3500' MD. 3. Set and test an EZSV in the 9-5/8" casing at -2770' MD' for a whipstock departure/sidetrack of the well from that depth. 4. Drill 8-1/2" hole to TSAG and run and cement a 7"drilling liner. 5. Drill 6-1/8"production hole to the final Sag TD. 6. Run a 4-1/2"production liner(partially cemented liner w/frac sleeves and swell packers). 7. Run a 4-1/2"tubing (will"sting" into the 4-1/2"production liner top). 8. RDMO well. Please find attached the Y-10Bi Planned Well Summary, directional plan and proposed completion diagram. If you have any questions or require any additional information, please contact me at 564-5271. Y-10Bi PTD Page 1 2/28/2012 Planned Well Summary Target Well Y-10Bi Type Injector Objective Sag API Number: 50-029-20587-02 Current Status Active Produced Water Injector Estimated Start Date: 09/10/11 Time to Complete: 44 Days Surface Northing Easting Offsets TRS Location 5948841 644611 1410' FNL / 205' FEL 11N 13E sec 33 TSAG Northing Easting TVDss Offsets TRS 5945455 642768 -8834' 4761' FNL / 2120' FEL 11N 13E sec 33 Northing Easting TVDss Offsets TRS BHL 5945755 649169 -8793' 4585' FNL / 994' FEL 11N 13E sec 34 Planned KOP: 2770' MD/2770' TVDss Planned TD: 18,452' MD/8883' TVD Rig: Doyon 25 BF/RT: 39.5'/50.09' RTE: 89.59' Directional: Schlumberger(P8) KOP: 2770' MD Maximum Hole Angle: -63°in the 8-1/2"intermediate section -108°in the 6-1/8"production section Close Approach Wells: Minor Risking Required on the following wells: Survey Program: 2770'to 3400' MD =gyro single shots 3440'to 18,452' MD= MWD+IIFR+MS Nearest Property Line: 11,582' Nearest Well within Pool: 387' (Y-11) Y-10Bi PTD Page 2 2/28/2012 (13) Drilling Permitting Requirements: 1 Sundry 2 Permit To Drill 3 Dist.to nearest property line(ft.): 11,582 Dist.to nearest well within pool(ft): 387' Wells within 1/4 mi.of this injection well @ top reservoir Dist,Ft. Annulus Integrity Comments Y-11 387' sidetracked to Y-110, no integrity issues Y-11 A 1077' sidetracked to Y-110, no integrity issues Y-14 1155' sidetracked to Y-14B,no integrity issues 105'(vertical- Y-14B crosses Y-14B operable,no integrity issues lateral in Ivishak). Y-09 372' sidetracked to Y-09A,no integrity issues Y-09A 883' operable,no integrity issues Y-05 846' sidetracked to Y-05B,no integrity issues 127'(vertical- Y-05A crosses Y-05A sidetracked to Y-05B,no integrity issues lateral in Ivishak) Y-37A 964' suspended,no integrity issues Y-34A 771 (from BHL)vishak operable,no integrity issues Y-35 403' sidetracked to Y-35A, no integrity issues Y-35A 605' operable,no integrity issues Y-21 A 933' operable,no integrity issues A-05A 361'to Ivishak operable,no integrity issues lateral Well Status @ Completion WAG injector DNR Land Use Permit No. AOR Summary: The following information is provided as it relates to the relevant cement jobs on the wells within 1/4 mile of this injection well. Y-11 - The original Y-11 well was P&A at 9809' (12-1/4" hole) due to insufficient pay sands. This 12-1/4" hole was P&A'ed with 2 cement plugs the 1st being from 9809' MD to 9690' MD with the second plug being from 5492' MD to 5292' MD. There were no problems documented as they would relate to the setting of these 2 cement plugs. The Y-11 RD was TD'ed at 9540' MD (12-1/4" hole) and 9-5/8" casing was run and cemented at 9530' MD. This casing was cemented with a 2 stage job with the 1st stage consisting of an 83 bbls cement job through the casing shoe which should have place the TOC at 1095'to 1424'above the shoe depending on the wash- out calculation (gauge hole to 30%wash-out). There were no problems documented with the cement job on this casing string. Y-11 A - The production casing for this well is the 9-5/8"casing as detailed above in the Y-11 RD. Y-21 A - On 4/21/95, the 9-5/8"casing was cemented at 11,367' MD with 93 bbls of cement (brings cement 1227' to 1595' above the shoe depending on 30% wash-out to gauge hole calculation). During this cement job,the plug was bumped and there was no reference to any lost circulation issues. Y-14 - On 9/29/88, ran and cemented the 9-5/8" casing at 10,051' MD (no losses, bumped plug, casing tested). Pumped 275 bbls 13.5 G + 102 bbls 15.8 G placing TOC at 5236' to 6805' above the shoe Y-10Bi PTD Page 3 2/28/2012 depending on 30%wash-out to gauge hole calculations. Y-14A - On 10/25/95, cemented the 7" drilling liner at 10,541' MD with 53 bbls of G cement (no losses documented). Fully cemented the liner/circulated cement off the liner top at 9243' MD when reversed out after the cement job. Y-14B - As this 08/01/01 well is a coil drill-out of the 7" shoe as set on the Y-14A well, the comments associated with that 7"cement job(see above) apply. Y-09 - On 6/25/81, the 9-5/8" production casing was run and cemented to 10,223' MD and cemented with 256 bbls of class G cement (did not bump plug) as the 1st stage of a 2 stage cement job (2nd stage thru a DV packer at 2590' MD to freeze protect and cement the OA). Given the 256 bbls of cement pumped w/o losses, the TOC would be 3299' to 4391' above the shoe depending on the wash-out calculation used (gauge hole to 30%wash-out). Y-09A - On 7/17/97, ran and cemented a 7" drilling liner at 10,642' MD into TSAG with 41 bbls of 15.8 G cement. No losses were documented, the plug bumped and the liner tested. Estimated TOC is from 1395' to 1814'above the shoe depending on 30%wash-out to gauge hole calculations. Y-05 - According to the PDS and the comments in the Y-05A file,the 9-5/8"casing on this well was run and cemented at 9626' MD w/o problems, therefore, given the normal volume of cement pumped at that time, it is safe to estimate a minimum of 50'of good cement exist above that casing shoe. Y-05Ai - On 8/24/95, ran and cemented a 7" production liner at 11,043' MD (KOP out of the 9-5/8" casing on the Y-05 well at 8415' MD). Cemented with 103 bbls of 15.7 ppg G cement with good returns (no cement off liner top). Logged 7" to evaluate the cement job (not adequate). Perf'ed well at 9800' MD and squeezed 12 bbls of cement with the estimated TOC at 9750' MD. (Note: This well (Y-05Bi) is currently an active/operable injector.) Y-37 - On 10/25/93, the 7-5/8" production casing was run and cemented at 10,659' MD with 54 bbls of class G cement with the intent to place a 1000' tail cement job from the casing shoe up (10.1 ppg mud in hole). The cement job was pumped with intermittent fluid returns and 75 psi of lift (showing the loss zone to be above the shoe) which equates to -242' of cement lift with the hole angle through this section of the well being at 17-18 degrees. Y-37A - As this 03/16/02 coil ST from the Y-37roduction liner, the comments as detailed above relatingto P the Y-37 7-5/8"p roduction casing apply. . Y-35 - On 6/11/91, ran and cemented 7-5/8" intermediate casing at 9417' MD (no losses). Pumped 210 bbls 13.0 ppg +26 bbls 15.8 G place TOC at 4739'to 6162' above the shoe depending on 30%wash-out to gauge hole calculations. Y-35A - On 1/12/03, the 5-1/2" drilling liner was run and cemented at 10,923' MD. There were problems running this liner and there were losses associated with this run. The liner was cemented with 30 bbls of 15.8 ppg G. With the liner on bottom, they circulated the well to full returns before beginning the job, but the job did pack off with 10 bbls left on the cement. Given the conditions of the cement job, the estimated TOC would be from 1036'to 1342'above the shoe based upon 30%wash-out to gauged hole calculations. Y-21A - On 4/21/95, the 9-5/8"casing was cemented at 11,367' MD with 93 bbls of cement (brings cement 1227' to 1595' above the shoe depending on 30% wash-out to gauge hole calculation). During this cement job, the plug was bumped and there was no reference to any lost circulation issues. Y-10Bi PTD Page 4 2/28/2012 1.N �. ___ __......r''aliP00.."--A) 4%4\47 n Nsi,,. , .,. _ .,, . Y42 1I4 MIM BuIMr ��. XY 11 Y OS • Y-108 Well Pin • 7:1.09.....____________:7"4"-------- •r"` "a ....---'-' \ / . / Y-37 -03 Y-21 A Y:1 ;:V09APB1 A38PB1 V'A / \,-y OSB ''''.7-----''-'..-..y.f, , �V-i1C Y-09A +A,a / r.Pucl�+n101 vasA „_. • 4,1...P2 500 1,000 2000 3.000 Feet 4,000 • TSGR Pick —'v-azu tf41.p ,. ...... .... _- .. .Miles .. Y-10Bi PTD Page 5 2/28/2012 Formation Tops & Pore Pressure Estimate (SOR): Estimated Depth Fluid Most Likely Formation Formation Top Uncertainty Type Pore Pressure (TVDssI (+-TVD hi (for sands 'EMW ppg} SV4 2,353 C +^-20 Waterbnne2 45 KOP 2.770.0 +-20 - SV3 2.880.0 -1-100 V aterbnne 8.45 SV2 3.'19.0 -1-100 late(trios 8.45 SV1 3.466.0 -:-100 'Nate'bnn2 _ 8.45 UG4 3.968.0 -'-1 CO il2ter trir2 923 845 UG3 4.268.0 -1-100 'Nater trir_- ]a5 9.2 UG1 4.73-.0 -1-100 Waterbrir2 93: 9.2 WS2 5.256 C - 1c0 Nator,tn-12 8.45 WSi 5.427.0 -1.1C0 Wate^tnlc, 8.45 CM3 5.66.5.0 -+-100 8.7 CM2 5:67.0 -100 9 CM1 7.3C7C 4-100 9.6 THRZ 7.303.0 +.1.50 9.6 BHRZ 7.51-.0 +(-50 9.6 TKNG!TJGi 7.565.0 +1-50 9.6 TJF 7,988.0 +,-50 9.6 TJE 8.075.0 +1-50 9.6 TJD 88.377.0 +1-50 9.6 TJC 8.529.0 +1-SO 9.6 TJB 8.669.0 +1.50 9.6 TJA 6.736-0 +1.50 9 6 TSGR 8.834.0 +I-25 O: 7.06 TSHU 8.852.0 +1-25 7.06 TSAD 88.917.0 +'-25 'Nat2-Oi - 7.06 invert Pt 8.9766 C +'-25 7.06 TSAD 6.9_3 C . -25 'N3t9'Oi 7.06 - TSHU _._32 C . 25 7.06 Casing/Tubing Program Hole Liner/ Wt/Ft Grade Conn Burst Collapse Length Top Bottom Size Tbg O.D. (psi) (psi) MD/TVDrkb MD/TVDrkb 8-1/2" 7" 26# L-80 VarTop 7 240 5,410 9272' 2620'/2620' 11 892'/8924' HC (-150' lap) 6-1/8" 4 1/2" 12.6# 13Cr-85 Vam-Top 8,430 7,500 6728' 11,724'/8793' 18,452'/8883' (-150' lap) - 11,729'/8797' Tubing 41/2" 12.6# 13Cr-85 Vam-Top 8,430 7,500 11,729 surface (u5' into production liner TBS) Mud Program Intermediate Mud Properties: LSND 8-1/2" hole section Depth Interval Density (ppg) PV YP API FL HTHP FL MBT PH • KOP to CM1 9.3 5-20 20-25 <10 NA <20 8.5-10.0 CM to THRZ 9.85-20 20-25 <10 NA <20 8.5-10.0 THRZ to TSAG 10.7 - 5-20 20-25 <10 <10 <20 8.5-10.0 Production Mud Properties: BaradrilN Reservoir Drill-in Fluid 6-1/8" hole section . Depth Interval Density (ppg) PV YP LSVR API Fl pH MBT 7" Shoe to TD 8.5-8.8 4-9 20-25 >13,000 NC 8.5-10.0 <3 Y-10Bi PTD Page 6 2/28/2012 Logging Program (17) Well Evaluation Requirements Interval MWD-LWD OH Logs CH logs Coring Sampling Surface GF.CC_ip-e-dri Intermediate GR•ResPWa al-bit sonsorcaiiper(back G2_ too'or more up) frequently if Deem c Production GR,Trple Cornbo'Acaustic CBL post rig, 25'unless ROP cues not allowcaliper Tie-in requirements There is only 50'of overlap with existing logs to the KGP- This will make tie-in a challenge. Collect if a sidetrack: casec hole GR•'CCLin surface casing during decomp!ete. Evaluate Sag River reservoir cuality anc water saturatic1. GR-at-13:1 in intermediate section for casing pick at high angle and in production hole for geosteering in thin sant. Identify packer setting and sleeve Objectives for � settng depths beset on log data. evaluation program: 'caliper will be a back up in case the caliper-on Y-25B tails. We on)(need intermediate caiper data.n one of the big Y Pad wells. At bit sensor(ntermeciate hale)will aid in picking casing point. There will be-'0.000 MD of open hole Comments: above the casing point which a ill make confirming Sag in samples challenging. PZIG(Sib)^.aht Le ready. Cement Program Casing Size 7" 26#, L-80 Intermediate Liner Basis: Lead: None Tail: Volume of 1500' open hole above the shoe +30%excess + 80' shoe track. Tail TOC at 1500' above shoe at -10,392' MD. Total Cement Spacer 25 bbls of Viscosified Spacer weighted to 12.5 ppg (Mud Push II) Volume: Lead N/A Tail 47 bbls, 262 cuft, 226 sks 15.8 lb/gal Class G +adds— 1.17 cuft/sk Temp BHST=223°F, BHCT TBD by Schlumberger Casing Size 4.5" 12.6#, 13Cr Production Liner Basis: Lead: None Tail: Volume of open hole +40%excess + 150' of liner lap + 200' of 7"x 4" DP excess. • Tail TOC: 11,742' MD (cement at TOL w/excess to be circulated out) Rar2 ;d NOTE: This will be a combination solid/slotted liner cement job on the upper portion of this 4- 1/2" production liner assuming the ECP placement is at 12,900' MD. Total Cement Spacer 25 bbls of Viscosified Spacer weighted to 12 ppg (Mud Push II) Volume: Lead N/A Tail 33 bbls, 184 cuft, 159 sks 15.8 lb/gal Class G + GasBlok + adds— 1.17 cuft/sk Temp BHST=225°F, BHCT TBD by Schlumberger Y-10Bi PTD Page 7 2/28/2012 Surface and Anti-Collision Issues Surface Shut-in Wells: There are no wells requiring surface shut-in in order to move onto the well. Close Approach Shut-in Wells: Given our current directional plan for this well (P8) and to Minor Risk the wells that fail the Major Risk analysis, the following wells may require SI to drill the Y-10Bi well: Y-10Bi Off-set Well SSSV Production Packer Y-05B 15,392'MD 10,725'MD 2004'MD 8007'MD Y-11 C 3857' 3800' 2207' 10,732' Y-14B 13,396' 11,175' 2192' 10,036' Y-21 A 3293' 3275' 2025' 10,442' Y-25B(P12) 3151' -3150' -2097' -10,500' Wells Y-110, Y-21 A and the planned Y-25B will require a tubing tail plug to satisfy the SI requirement. Wells Y-05B and Y-14B, given the intersect point to be below their production packers, will need to be SI and fluid packed. Hydrogen Sulfide (6) H2S Data Well Name H2S Level Reaoing Date Comments Parent Well(if sidetrack) V-10A 'y A nie_toi *1 Closest SHL Well H2S Level Y-25 13 ppm •-r 762008 #'2 Closest SHL Well H2S Level V-214 50 ppm -'24 2C11 N1 Closest BHL Well H2S Level V-148 23 ppm 3 31 2C11 rr2 Closest BHL Well H2S Level V-34A 35 ppm 51520Cr7 *3 Closest BHL Well H2S Level *4 Closest BHL Well H2S Level Max.Recorded H2S on Pad Facility Y-33 350 opm 223'201 1 Other Relevant H2S Data Y-pac is considerec an H2S tacit); (H2S alarms from rigs.etc.) Faults (11) Fault Details Formation Where Encounter Fauii MD intersect TVDss Intersect Est.Throw Throw Direction Uncertainly Fat,I tr- - K tga.,:E -C.•30.3 -8.030.0 30-40' DT'i 1,,8dil.-- Fat;fe2- K i)ga•._E ' -1.130.0 - -8.23C 5-16' DT',V High Fact K3- Z4 i'.ish:.k 2.350.3 -2.956.0 25-35' [MN ti�cia- Fat,to - Saa 74.000.3 -2.790.0 15-25' DTW Yedit,- F3t.I ors Sag 14,4000 6.792.0 5,15 C.-.. Hioh Fat.t 49- Sat '6,100.3 -6.7'7E C -30' DT' ' Yeii ,-- Ili Fat,t#• Sag '0730.3 6766 Ci 10-20' D-..' Hioh Fats t n9- Sag .000.3 6.774 C 5-i 5' D'= High Drilling Disposal Dis osa l • There is no annular injection in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. Any metal cuttings will be sent to the North Slope Borough. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul Class I waste to DS-04 and/or Pad 3 for disposal/Contact the GPB Environmental Advisors (659-5893) f/guidance. Y-10Bi PTD Page 8 2/28/2012 Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 4,000 psi. BOP regular test frequency will be 14 days during drilling phase and 7 days during de-completion and surface casing work. Intermediate Interval Maximum anticipated BHP 3243 psi @ TSAG at 8834'TVDss (7.06 ppg EMW) Maximum surface pressure 2360 psi (.10 psi/ft gas gradient to surface) Kick tolerance 115.1 bbls with 11.4 ppg frac gradient, assuming a maximum 7.06 ppg max pore pressure in the Sag and 10.7 ppg MW. Planned BOP test pressure Rams test to 4,000 psi/250 psi. Annular test to 3,500 psi/250 psi 9-5/8" Casing Test/7" 4000 psi surface pressure Casing Integrity Test—8-1/2" hole LOT after drilling 20'-50'from middle of window 7" Casing The VERs will be changed to 7" rams to accommodate the 7"drilling liner Production Interval Maximum anticipated BHP 3243 psi @ TSAG at 8834'TVDss (7.06 ppg EMW) Maximum surface pressure 2360 psi (.10 psi/ft gas gradient to surface) Infinite with 8.9 ppg frac gradient, assuming a maximum 7.06 ppg max Kick tolerance pore pressure in the Sag and 8.6 ppg MW. Planned BOP test pressure Rams test to 4,000 psi/250 psi. Annular test to 3,500 psi/250 psi Integrity Test—6-1/8" hole FIT after drilling 20'-50'of new hole 4-1/2" Production Liner 4000 psi surface pressure Planned completion fluids 8.5 ppg Seawater/6.8 ppg Diesel Y-10Bi PTD Page 9 2/28/2012 Doyon 25 BOPE Schematic . ., 11. Ola , I I I 1 II i A II g iki ri7, - 1417,Plitn0 1 r r . L.-4 kl IR l'`JIL j R _ 1 1 j _ I 4 I 1 1 'I a k X ' — o ---4,— ... f 0 cT E,, NI t-• me . '2 Erzumilli IMa,,,,J. MINM1.11 .,Og — . i (..t. I= M ll (.4.1 .4 • lit_ IM ri. '.-:7,1; '4, El Li •-C • '•lc T:._ 1 '.4 r." '•..1 .... F. 1* Ct 14_22 %S... , 0 454 .1) c.,. .....-4 CC 12) I Ed 1, 4 lit it 1! P I II Eli c.:4 il 4 1 I. 4 cz, 01. 1 t .. I n T-1_ ,,,,, , , , 1 4.,..\ , i siminu i IL___=ii."--''- ti -.7.1. I ,•3 ! 1 Ed-'10.,-4 1 ,, Ipi 4 1, o• .., r•-•,,, I I 1 lk....) 9: 1 1 ni . t..I , 1 12 .- — 11 is miC:liC .stm '- '. I" I X *I "'•1 it IS• ..,..,% i -Ca' e " Y-10Bi PTD Page 10 2/28/2012 Wel!plan Addendum Contingency for well control when non-shearable equipment is across the BOPE shear rams This document will provide guidance for rig operations when a well control event arises and there is non-shearable equipment hanging from the derrick across the BOPE shear rams. Prior to picking up or running any equipment or tools in the hole, a PJSM and discussion is required to identify and note any equipment which will be run through the BOPE and is non- shearable. A risk assessment shall be performed for any equipment which is deemed non-shearable. The risk assessment must address the following: 1. Can variable bore rams seal against the equipment? 2. Can an annular preventer seal against the equipment? 3. Is a cross-over readily available to make-up into equipment? 4. Is a single joint or full stand of DP readily available to lower equipment below the BOPE stack? 5. How the equipment can be intentionally dropped down hole. 6. Are weights of equipment known so that hydraulic jacking force of wellbore pressure can be calculated. 7. Accurate and up to date shearing capabilities for the current shear rams installed is available. 8. Has each crew member been versed on individual roles and responsibilities? If there is a well control event happens with non-shearable equipment across the BOPE shear rams,the following procedure should be followed: 1. Based on the risk assessment above, gain control of the well by either: a. Closing the appropriate preventer(pipe ram, VBR, or annular) or b. Placing a sealable piece of equipment across the BOPE and closing the appropriate preventer or c. Dropping equipment and closing the Blind or Blind/Shear rams. 2. If well conditions permit, contact appropriate personnel. If not, proceed with well kill operations. This may include placing shearable equipment(i.e. drillpipe) across the shear rams by stripping in/out of the hole. Y-10Bi PTD Page 11 2/28/2012 Y-10Bi RST General Operational Summary Proposed Pre-rici prep work: 1. Drift tubing to 8989' MD. 2. Confirm injectivity down tubing to existing perfs (10,820' MD - 11,070' MD) for planned full- bore of the coild liner and to P&A the existing perforations. 3. Down-squeeze xx bbls of cement to P&A the coil liner f/PBTD at 11,074' MD to 8701' MD. 4 Tag TOC and pressure test the tubing to 2150 psi to confirm the integrity of the 1st P&A plug. 5. RU e-line and make tubing punch at 8700' MD and circ-out the TXIA to seawater. Perform FB cement job down the tubing placing the TOC on both the T and IA at -7700' 6. MD (therefore, -1000' cement column on both sides of the tubing from 8700' MD) and freeze protect well on both sides of the tubing to 2200' MD. 7. MIT-IA to 3000 psi. 8. RU e-line and make a jet cut in the 4-1/2"tubing at 3500' MD. 9 OMIT-TxIA to 3000 psi, MIT-OA to 2000 psi. 10. Function LDS. PPPOT-T to 5000 psi. PPPOT-IC to 3500 psi. 11. Install BPV/ remove flow-line and wellhouse/level pad. Planned Rio Work: 1. MI/RU Doyon 25. 2. Pull BPV. Circulate out freeze protection and displace well to clean seawater. 3. Set a TWC and test from below to 2000 psi and above to 3500 psi for 10 minutes. 4. Nipple down tree. Nipple up BOPE (2-7/8"x 5-1/2" VBR's in upper and lower ram cavity). Test BOPE to 250 psi low/4000 psi high. Pull TWC. - 5. RU and pull the 4-1/2"tubing from the pre-rig jet cut at -3500' MD. 6. PU 4" drill pipe and 9-5/8" clean-out assembly to include a full-gage whipstock mill and clean-out well to the top of the tubing stub -3500' MD. (NOTE: With 9-5/8" DV collar at 2574' MD, no casing scraper is suggested for the clean-out assembly.) 7. RU E-line, RIH with GR/CCL and 9-5/8" EZSV for 47# casing. Tag tubing stub at -3500'. Set the ,r 3iZ_pc0 EZSV at -2795' MD (competent sand / confirm with GR) as required to avoid cutting a casing collar while milling the window. POOH. Rig down E-line. 8. Pressure test the EZSV to 4000 psi for 30 minutes and chart. 9. PU and RIH with 9-5/8" Baker bottom-trip anchor whipstock assembly and 8.5" window milling (4'4 assembly (to include full gauge string mills). RIH to the top of the EZSV. Orient and set the whipstock. Shear off the whipstock. 10. Change-out the 9-5/8" pack-offs if required. 11. Displace the well to 9.5 ppg LSND based milling fluid prior to 9-5/8" casing milling operations and other path-forward 8-1/2"drilling operations. 12. Mill a window in the 9-5/8"casing at -2770' MD'plus 20'of formation from mid-window. 13. PU into 9-5/8"casing. Perform a LOT. POOH for drilling BHA. ,(.K etc) Nt;o. 14. MU an 8-1/2"drilling BHA with DIR/GR/RES/PWD. RIH. 15. Drill 8-1/2" intermediate interval to 7"casing point at the top of the Sag River. 16. Circulate well clean, short trip to bring bit to lower GR TD, run back to TD, circulate wellbore clean. 7 , POOH for 7"drilling liner. �u�' 17. Change upper VBR's to 7"casing rams and test to 250 psi low/4000 psi high. FP 18. Run a 7", 26#, L-80, Vam-Top, HC drilling liner back into the 9-5/8" casing with minimum of 150' liner lap. Cement 7" liner with -1500' tail of 15.8 ppg class G cement. Displace cement with mud. (NOTE: A FOSV must be available on rig floor for this liner run.) 19. Set hanger and liner top packer (Baker pusher tool). Release f/liner & circulate BU, POOH, L/D liner running tool (LRT). 20. After cement has reached a minimum 500 psi compressive strength, test the 9-%" casing X 7" liner to 4000psi for 30 minutes and record the test. (NOTE: Test from below blinds before RIH w/ 6-1/8" BHA.) 21. Change out 7" rams to 2-7/8"x 5-1/2"VBR's and test to 250 psi/4000 psi. Y-10Bi PTD Page 12 2/28/2012 22. MU a 6-1/8" BHA with DIR/GR/RES/DEN/NEU with an insert bit and RIH to the 7" landing collar. 23. Displace well to the planned 8.5 ppg DIF and monitor well for 30 minutes as a negative test on the liner lap. 24. Drill out the 7"shoe plus 20'of formation. Pull into the shoe and perform an FIT. 25. Drill the 6-%e" production interval as per directional plan to TD. (NOTE: As required for an injection well, will runGj g or LWD sonic log to confirm the cement job on the 7"drilling liner.) 26. Circulate hole clean, short trip as needed/MAD Pass where required. POOH. 27. MU and RIH to bottom with a 4-1/2", 12.6#, 13CR-85, VamTop combination solid-slotted production liner from TD to 150' liner lap inside the 7" shoe. (NOTE: A FOSV must be available on rig floor for this liner run.) 28. Perform liner cement job. P i;1 r^A 29. Set liner top packer and displace well to clean seawater above the liner top. 30. POOH, L/D LRT. 31. Test 4-1/2"production liner to 4000 psi. 32. RU and run 4-1/2", 12.6#, 13CR-85 Vam-Top completion, stinging into the 4-1" liner tie back sleeve. 33. Space out and make up tubing hanger. 34. Land the tubing hanger, and run in lock down screws. 35. Reverse circulate to seawater with Corrosion Inhibitor(surface to surface). 36. Drop ball and rod. Set packer and individually test the tubing and annulus to 4000 psi for 30 minutes. Record r each test. 37. Set a TWC. 38. ND the BOPE. NU the tree and test to 5,000 psi. 39. Pull TWC. Reverse in sufficient volume of diesel to freeze protect the well to -2,100' MD. Allow the diesel to U-tube to equilibrium. 40. Set a BPV. Secure the well. 41. RDMO. Post-Rio Work: 1. MI/RU slick line. Pull the ball and rod/RHC plug from landing nipple below the production packer. 2. Replace the DCK shear valve with a dummy GLV. • 3. Frac well per plan. ? 4. RU ASRC for frac flow-back. 5. Install well house and instrumentation. 6. Hydrotest S-Riser. Modify S- Riser as needed. Y-10Bi PTD Page 13 2/28/2012 Y-10Bi Drilling Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE I. Well Control A. Intermediate Hole - Given a max cretaceous injection pressure of 9.1 ppg, this wellplan dictates the use of a 9.3 ppg LSND mud from the KOP in the SV sands to the top of the CM1. With the pore pressure for the CM1 to be estimated at 9.6 ppg, the mud weight will be increased to 9.8 ppg to drill those members of the Colville. For drilling the HRZ and Kingak shales. the mud weight will be increased to 10.7 ppg to provide effective wellbore stabilization. B. Production Hole - The Sag River formation in this area is expected to be under-pressured at 7.06 ppg EMW. This interval will be drilled with a 8.5 -8.8 ppg reservoir drill-in fluid. II. Lost Circulation/Breathing A. Intermediate Hole - While no major lost circulation is expected in this interval of the well, breathing and/or lost circulation is a possibility due to the shallow KOP on this well which exposes all formations from the KOP to the TSAG to drilling ECD's associated with the planned 10.7 ppg mud density. B. Production Hole - As there are planned fault crossings throughout this Sag horizontal, lost circulation problems should can be anticipated. LCM should be on location and ready for use per the Mud Program decision tree and extra liquid volume support/trucking support will require management. Ill. Kick Tolerance/Integrity Testing A. With the planned mud weights, the kick tolerance for the intermediate section is 115.1 bbls, and for the production section is infinite. B. Integrity Testing Test Point Test Depth Test type EMW(lb/gal) 9-%"window 20'-50' from the 9-%"window LOT 11.4 minimum 7" shoe 20'-50'from the 7" shoe FIT 8.9 minimum IV. Hydrogen Sulfide (6) H2S Data Well Name H2S Level Reading Date Comments Parent Well Of sidetrack) Y-104 `d A nie:13r #1 Closest SHL Well H2S Level Y-25 10 ppm • 2G:2 #2 Closest SHL Well 142S Level Y-21A 53 ppm 24 2011 #1 Closest BHL Well 142S Level Y-14B 23 ppm 3 31 2C1 #2 Closest BHL Well 1-125 Level Y-2 4A 25 Fpm 5 15 LCC.. #3 Closest BHL Well H2S Level #4 Closest BHL Well H2S Level Max.Recorded H2S on Pad Faciiky Y-33 350 ppm 2:2.1:2c11 Other Relevant 142S Data Y-pac is considerec an 1425 facility ,',-12S alarms from ngs etc Y-10Bi PTD Page 14 2/28/2012 V. Faults (11) Fault Details Formation Where Encounter Fault MD Intersect TVDss Intersect Est.Throw Throw Direction 'Uncertainly Fault - K:nga.,_E 10,800.0 -8.000.0 30-40' DTW tl:ediu,M Fau't#2- K 7ga•._E 11,100.0 -8.230.0 5-15' DTW Hiah FaUil3- 1ishc.k 12.350.0 -8.958.0 25-35' DTW Madiu - FaLi1 4- Saa 14,000.0 -8.790.0 15-25' DTW Medium Faut#5- Sag 14,400.0 -8.783.0 5-15' C'= High Fauin3 Sag 16.100.0 -8.776.0 33' DTW Medium Fa 1#7- Sag 6 700.0 -8.768.0 10-23' C'E Hiah Fa,149 sag '7!000.0 -8.774.0 5-15' D`E Hiah VI. Anti-Collision Issues The following listed wells fail Major Risk analysis and will be Minor Risked prior to drilling the Y-10Bi RST: Y-05A- abandoned/sidetracked Y-05BPB1 - Y-05B cement log shows good cement, so PB1 is isolated. Y-05B wasn't explicitly listed in Crispin's list below, but it seems like it should have been so here's the info in case you need it. Y-05B is an online injector, putting about 1100 bwpd into Zone 4 Y-11 - abandoned/sidetracked Y-11 A- abandoned/sidetracked Y-11 B - abandoned/sidetracked Y-11C -Z4 WAG injector, currently injecting 1300 bwpd Y-11 BPB1 - should have no connection to the current Y-110 well. Y-14A-Y-14A flows with Y-14B. Y-14B was a toe drill out from the Y-14A with the A perfs left open, so the A and B legs are basically one long continuous wellbore. Y-14B - open hole producer in Z4 flows with Y-14A Z4 slotted liner and Sag perfs. Online at 100 bopd, 500 bwpd, 0.7 mmscfd (75 IOR) Y-21 - abandoned/sidetracked Y-21A- slotted liner producer in Z4 with Sag perfs. Online at 100 bopd. 1400 bwpd, 0.2 mmscfd (100 IOR) Y-25 - abandoned/sidetracked Y-25A- suspended, TxIA communication (will be sidetracking to Sag next year) Y-25B (P12) CONSULT THE Y-PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION. Y-10Bi PTD Page 15 2/28/2012 FREE= 41'6'CW SA FETY NOTES:W ELL HtOUtHtS A SSSV WHEN ON WELLFIEAD= CW ' Mx[M US'CONHHM;. ACTUATOR= KB.ELEV= 85.69 BF.ELEV= 51.59 KOP= 2770 V' CONDU_'_ E. 144' ( I — Daum AYJ= Le 2574' H�-a6-t . Datum TVD= agar SS r 1 l 21 H 1 10 GAS LPt MANDRELS I133x8'CSG,7211,L-OO.ID= F 2709 1 ST 11 TVD OEV TYPE VLV LATCH PORT DATE �+ 1 ITOP 7'LINER 111 I 2 p of S b' cct at 2,,.0 tAU Minimum ID= XN NIP at 11.826'MD 141.40001104111►111►1 ID =3275" 11►111►0►►►�►�/•►011/•►.1� 1.4014 1111111►1111 Y-1 0A 1.41+4 9-5'B'CSG.471t,L-80,I=8.681' 9464' 0—I 11706' H 11726' -I I 1 I 11826' LNR 11981 —J %NEDRA TION SUMMARY RE'LOG ANGLEAI TOP PERF. Note.Rete to P.od.rcron DB to nreton_a De.-1 data INi SEE SPF T3?:'AL O t j2 DATENimmmo --I �1 0 He:"f';� w,:Jr:_ I rte._ .maa.al' --.. 6-1/8"hoe MOMBINIMIN 12A#,13CR H 1 E KF:e- 001.11.11.14,S LA I E REv e', COMMENTS PRUGHOE BAY UNIT 07.12'El VAN II ORIGINAL COM PLET ION 0216.11 MB. J ADDED SSSV SAFETY NOTE WELL: Y-10J 11,05.45 014 RW O 1 1 rw %I_:E PROPOSED RST W W6 FERMtT No. 022205 NORDICI CT D SIDETRACK(Y-10A) 02''_ '- • r-108 D'anneOwo6 API No. 50-029-20587-0. 0&11107 011 MN ',EC 33,T11N,R13E,1411'FM.Q205 Ftl :2x1Q^09 0BI4FJO DRi:,DRAFT CORRECT IONS .31f09,1 ,?_i;: SAFETY N;:'EUx•_t'.'E BPEttpkbratlon(Alms ka) Y-10Bi PTD Page 16 2/28/2012 by 0 Y-10B(P8)Proposal Report Schlumberger (Def Plan) Report Date: November 23,2011-10:12 AM Survey/DLS Computation: Minimum Curvature/Lubincio Client: BP 11�� Vertical Section Azimuth: 90.000°(True North) Field: Prudhoe Bay OA Vertical on Origin: 5000 ft,5000 ft m: RTE acture/Slot: -PADIV OUnrt W��sib q'( () "W`:^°�TVD TVD Refereencce Elevation: 89.590 ft aboveSL Borehole: V-100 lS� Seabed I Ground Elevation: 50.09 ft above MSL UIM I API#: Unknown/500292058702 Magnetic Declination: 21.237° Survey Name: V-100(P8) Total Field Strength: 57657.048 nT Survey Date: November 02,2011 Magnetic Dip Angle: 80.973° Tort/AHD/001/ERD Ratio: 283.891°/12767.021 ft/6.868/1.408 Declination Date: November 02,2011 Coordinate Reference System: NAD27 Alaska State Plane,Zone 04,US Feet Magnetic Declination Model: BGGM 2011 Location Lat I Long: N 70'16'3.59067",W 148°49'50.13943" North Reference: True North Location Grid N/E V/X: N 5948841.490 ftUS,E 644611 010 IIUS Grid Convergence Used: 0.000' CRS Grid Convergence Angle: 1.10075585° Total Corr Mag North-"True 21.237. North: Gdd Scale Factor: 0.99992378 Local Coord Referenced To: Well Head Comments MD Incl Azlm True TVDSS TVD VSEC NS EW TF DLS Directional Northing Easting (ft) (°) r) (0) (ft) (ft) (ft) (ft) r) ri100ft)Difficulty Index (SOS) (ftUS) Tie-In Survey 2703.90 0.40 167.11 261424 2703.83 8.08 -11.20 8.08 179.68M 0.10 1.88 5948830.45 644619.31 Top of Whipstock 2770.00 0.64 17968 2680.34 2769.93 8.14 -11.79 8.14 98.68M 0.40 1.92 5948829.85 644619.37 Base of Whipstock 2786.00 1.92 98.88 269634 2785.93 8.40 -11.93 8.40 98.88M 12.00 2.08 5948829.73 644619.84 Curve 4/100 2799.00 1.92 98.88 2709.33 2798.92 8.83 -11.99 8.83 99.7M 0.00 2.09 5848829.67 644620.07 2800.00 1.89 9970 2710.33 2799.92 8.86 -12.00 8.86 210.57M 4.00 2.10 5948829.67 644620.10 2900.00 2.92 210.57 2810.28 2899.87 9.19 -14.47 9.19 225.75M 4.00 2,37 594882720 644620.48 3000,00 874 225.75 2909.91 2999,50 3.69 -2076 3.69 11.02R 4.00 265 594882081 644615.10 3100.00 10.70 229.87 3008.73 3098.32 -7.82 -30.84 -7.62 6.95R 4.00 2.93 594881(151 644603.98 3200.00 14.68 231.78 3106.27 3195.88 -24.88 -44.67 -24.88 5.08R 4.00 3.18 5948798.38 844587.20 3300.00 1866 232.89 3202.05 3291.64 -47.40 -62.17 -47.40 4.02R 4.00 341 594077843 844564.82 340000 22.66 233.82 3295.60 3385.19 -7567 -83.25 -75.67 3.34R 4.00 3.81 5948756.81 644536.96 3500.00 2665 234.14 338847 3476.06 -109.37 -107.83 -109.37 2.876 4.00 3.78 5948731.59 644503.74 3600.00 30.65 234.53 347421 3563.80 -148.31 -135.77 -148.31 2.526 4.00 3.93 5948702.91 644485.34 3700.00 34.64 234.84 355840 3647.99 -192.32 -168.94 -192.32 2.26R 4.00 4.07 5948670.90 644421.95 3800.00 38.84 235.09 3638.62 3728.21 -241.18 -201.19 -241.18 2.066 4.00 4.20 5948635.72 644373.76 3900.00 42.64 235.30 3714.49 3804.08 -294.65 -238.35 -294.65 1.96 4.00 432 5948597.55 644321.02 400000 4663 23548 3785.63 3875.22 -352.47 -278.24 -352.47 1.776 4.00 4.42 5948558.56 644263.98 4100.00 50.63 235.64 3851.71 3941.30 -414.35 -32066 -414.35 1.666 4.00 4.52 5948512.95 844202.92 4200.00 5463 235.79 391239 4001.98 -48001 -365.42 -480.01 1.586 400 4.81 5948466.94 644138.15 4300.00 5883 235.92 3967.38 4056.97 -549.11 -412.29 -549.11 1.51R 4.00 4.70 5948418.76 644069.96 End Curve 4393.59 62.37 236.03 4013.46 4103.05 -618.60 -457.88 -616.80 HS 4.00 4.77 5948371.90 644003.36 Curve 4/100 761501 6237 236.03 5507.34 5596.93 -2983.51 -2052.76 -2983.51 150.99L 0.00 554 5946731.96 641667.72 7700.00 59.41 234.11 5548.68 5838.27 -3044.38 -2095,25 -3044.38 150.06L 4.00 5.57 5946688.31 641607.68 7800.00 55.97 231.70 5602.13 569172 -3111.80 -2146,18 -3111.80 148.77L 4.00 561 5946636.10 641541.25 7900.00 52.58 22909 5680.52 5750.11 -3174.36 -2197.88 -3174.36 147.24L 4.00 5.64 5946583.21 641479.71 Top Cote/le CM3) 7980.61 49,86 226.81 5711.00 5800.59 -3221.03 -2239.95 -3221.03 145 OIL 4.00 5.66 5946540.26 841433.85 8000.00 4924 22624 5723.58 5813.17 -323174 -2250.10 -3231.74 145.44L 4.00 5.67 5946529.90 641423.34 8100.00 4599 223.08 5790.98 5880.57 -3283.68 -2302.59 -3283.88 143.31L 4.00 570 5946476.43 641372.42 8200.00 4284 219.57 5862.41 5952.00 -332992 -2355.08 -332992 140.8L 4,00 5,72 5948423.07 641327.20 8300.00 39.80 215.62 5937.52 6027.11 -3370.24 -2407.32 -3370.24 137.83L 4.00 575 5946370.06 841287.90 8400.00 38.92 211.15 6015.94 6105.53 -3404.43 -2459.06 -3404.43 134.33L 4.00 5.77 5946317,68 641254.71 8500.00 34.23 208.06 6097.29 6186.88 -3432.33 -2510.05 -3432.33 130.161. 4.00 5.79 5946286.17 641227.80 8600.00 31.77 20025 6181.17 6270.76 -3453.81 -2560.04 -3453,81 125.311. 4.00 5.82 5946215.78 641207.29 8700.00 29.62 19354 6267.18 6356.77 -3488.75 -2808.78 -3468,75 119,821. 400 583 5946186.77 841193.28 8800.00 27.85 186.18 6354.89 6444.48 -3477.10 -2658.03 -3477.10 113.08L 4.00 5.85 5948119.36 641185.85 8900.00 26.51 177.91 6443.88 6533.47 -3478.80 -2701.58 -3478.80 105.72L 4.00 587 5948073.80 641185.02 9000.00 25.70 169.01 653371 6623.30 -3473.85 -2745.18 -3473.85 97.721. 400 5.89 5946030.30 641190.80 9100.00 25.45 159.75 6623.95 6713.54 -346227 -2786.64 -3462.27 89.37L 4.00 5,91 5945989.07 641203.17 9200.00 25.79 150.52 6714.16 6803.75 -3444.13 -282575 -3444.13 81.04L 4.00 5.92 5945950.32 641222.07 9300.00 26.68 141.70 6803.89 6893.48 -341950 -2882.32 -3419.50 73.121. 4.00 594 594591424 641247.39 9400.00 28.09 133.54 6892.71 6982.30 -3388.50 -2896.17 -3388.50 65.88L 400 5,95 5945880.99 641279.03 9500.00 29.93 126.21 6980.19 7069.78 -3351.30 -2927.13 -3351.30 59.47L 4.00 5.97 5945850.75 641316.82 9600.60 32.13 119.72 7085.91 7155.50 -3308.07 -2955.07 -3308.07 53.9L 400 598 594582366 641360,58 9700,00 3462 114.03 7149.43 7239.02 -3259.01 -2979.83 -3259.01 49.15L 400 8.00 5945799.84 641410.09 9800.00 37.34 109.04 7230.37 7319.98 -3204.38 -3001.30 -3204.38 45.111_ 4.00 6.02 5945779.43 841485.12 Top HRZ 9885.23 39.81 105.27 7297.00 7386.59 -3153.61 -3016.92 -315361 42.16L 4.00 6.03 5945764,79 641516.18 EOC 42 9891.63 40.00 105.00 7301.91 7391.50 -3149.65 -3017.99 -314965 HS 4.00 6.03 5945763.79 641520.18 Top Kmgek 10180.24 40.00 105.00 7523.00 7612.59 -297045 -3066.01 -2970.45 HS 0.00 6.05 5945719.23 641700,23 Top Sag River 11891.63 40.00 105.00 8834.00 892159 -1907.68 -3350.72 -190788 HS 0.00 6.13 5945455.00 64276800 7^ 11891.67 40.00 105.00 8834.03 8923.62 -1907.85 -3350.73 -1907.85 HS 0.00 6.13 5945454.99 642768.02 Curve 15/100 11896.63 40.00 7105.00 8837.83 8927.42 -1904.77 -3351.55 -1904.77 10.28/. 0.00 6.13 5945454.23 642771.12 11900.00 40.50 104.86 8840,40 8929.99 -1902.87 -3352.11 -1902.67 10.18L 15.00 6.13 5945453.71 642773.23 Top Shublik 11915.52 42.79 104.26 8852.00 8941.59 -189269 -3354.71 -189269 9.731. 15.00 6.14 5945451.31 642783.26 12000.00 55.31 101.67 890726 8996.85 -1830.61 -3388.86 -1830.61 8.021. 1500 6.18 5945438.35 642845,60 Toplvishek 12021.51 58,51 101.14 8919.00 9008.59 -1812.95 -337242 -1812.95 7.73L 15.00 6.18 5945435.13 642863.32 12100.00 70.19 99.47 8952.92 9042.51 -1743.45 -3385.01 -1743.45 7.011. 15.00 6.22 5945423,88 642933.04 12200,00 85.08 97.66 8974.28 9063.87 -1647.13 -3399.47 -1847.13 6.61L 15.00 6.26 5945411,28 643029,62 12300,00 99.98 95.92 8969.88 9059.47 -1548,21 -3411.25 -1548.21 6.69L 15.00 6.30 5945401.40 643128.74 Curve 3/100 12350.41 107.49 95.00 8957.91 9047.50 -1499.50 -3415.91 -1499.50 178.41R 15.00 6.32 5945397.67 643177.52 12400.00 106.00 95.04 8943.63 9033.22 -1452.19 -3420.07 -1452.19 178.426 3.00 6.33 5945394.42 643224.89 12500.00 103,00 95,13 8918.58 9008.17 -1355.77 -3428.65 -1355,77 178.446 3.00 6.34 5945387.70 643321.45 • End Curve 12505.33 102.84 95,13 8917.39 9006.98 -1350.60 -3429.12 -1350.80 HS 3.00 6.34 5945387.33 643326.63 Curve 3/100 12738.86 102.84 95.13 8885.48 8955.07 -1123.83 -344948 -1123,83 158.446 0.00 6.37 5945371.32 643553.74 12800.00 101.14 95.82 8852.78 8942.37 -1064.30 -3455.19 -1064,30 158.586 3.00 6.37 5945386.76 643613.37 12900.00 98.34 98.93 8835.86 8925.45 -966,36 -3466.14 -968,36 158.77R 3.00 6.39 5945357,70 643711.49 13000.00 95.54 98.02 8823.77 8913.36 -867.95 -3479.04 -867.95 158.9R 3.00 6.40 5945346,69 643810.12 Y-106 Tgt2 13090.90 9300 99.00 8817.00 8908.59 -778.30 -3492.46 -778.30 148.98 3.00 6.42 5945335,00 64390000 13100.00 92.77 99.14 8818.54 8906.13 -769.33 -3493.89 -769.33 148.9R 3.00 6.42 5945333.74 643909.00 End Curve 13140.11 91.74 99,76 8814.97 8904.56 -729.79 -3500,47 -729.79 HS 3.00 6.42 5945327.92 643948.65 Curve 3/100 13575,28 91.74 99.76 8801.79 8891.38 -301.12 -3574.23 -301.12 87.47R 000 6.46 594526241 644378.63 13800.00 91.77 100.50 8801.03 8890.62 -276.80 -3578.58 -276.80 67.56 3.00 6.47 5945258.54 644403.02 13700.00 91.90 103.50 8797.83 8887.42 -17905 -3599.36 -179.05 87.598 3.00 6.48 5945239.64 644501.15 7-108 T9t3 13783.26 92.00 106,00 8795.00 8884.59 -98.58 -3620.55 -98.58 142.081. 3,00 649 5945220,00 64458200 I 13800.00 9160 105.69 8794.47 8884.06 -82.49 -3825.12 -82.49 142.09L 3.00 6.49 5945215.74 644598.18 End Curve 13810.14 91.38 105.50 8794.21 8883.80 -7273 -3627.84 -72.73 HS 3.00 6.50 5945213,21 644607.99 Drilling Office 2.0.960.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-10W-10B\Y-10B(P8) 11/23/2011 11:11 AM Page 1 of 2 1 .. Comments MD Ind A71m True TVDSS TVD VSEC NS EW TF DLS Directional Northing Fasting cm r) r) (m on (m (ft) (ro r) MOOR)Dlmeulty Index (Ru8) (MS) Curve 3/100 13856.48 91.36 105.50 8793.11 8882.70 -28.09 -3640.22 -28.09 94.57L 0.00 6.50 5945201.68 644852.85 13900.00 91.26 104.20 8792.11 8881.70 13.97 -3851.38 13.97 94.6L 3.00 6.51 5945191.34 644895.11 14000.00 91.02 101.21 8790.12 8879.71 111.49 -3673.37 111.49 94.66L 3.00 6.52 5945171.23 844793.03 '(-1081914 14007.08 91.00 101.00 8790.00 8879.59 118.43 -3674.73 118.43 89.94L 3.00 6.52 5945170.00 644800.00 14100.00 91.00 98.21 8788.38 8877.97 210.03 -3690.23 210.03 89.99E 3.00 6.53 5945158.28 644891.87 End Curve 14148.02 91.00 96.83 8787.57 6877.18 255.65 -3698.26 255.65 HS 3.00 6.54 5945151.12 844937.59 Curve 3/100 14382.58 91.00 96.83 8783.44 8873.03 490.47 -3724.39 490.47 101.66L 0.00 6.58 5945127.50 645172.89 14400.00 90.90 96.32 8783.15 8872.74 507.79 -3728.38 507.79 101.69L 3.00 6.56 5945125.84 645190.25 14500.00 90.29 93.38 8782.12 8871.71 607.42 -3734.84 607.42 101.72L 3.00 6.57 5945119.30 645290.01 V-10611915 14547.01 90.00 92.00 8782.00 8871.59 654.38 -3737.04 654.38 98.05L 3.00 6.58 5945116.00 645337.00 End Curve 14587.07 88.83 90.81 8782.06 871.65 694.42 -3738.02 694.42 45 3.00 6.58 5945117.79 645377.05 Curve 3/100 15507.91 89.83 90.61 8784.78 874.35 1615.16 -3751.04 1615.18 88L 0.00 6.65 5945122.48 846297.80 15800.00 89.93 88.05 8784.98 874.55 1707.24 -3750.13 1707.24 87.99L 3.00 6.68 5945125.14 646389.84 V-10B Tgt6 15888.34 90.00 68.00 8785.00 874.59 1775.49 -3748.58 1775.49 77.13E 3.00 6.67 5945130.00 846458.00 15700.00 90.21 85.07 8784.94 874.53 1807.05 -3744.12 1807.05 77.13E 3.00 6.68 5945133.07 646489.51 15800.00 90.88 82.15 8783.99 873.58 1908.41 -3732.99 1908.41 77.16E 3.00 6.69 5945148.10 646588.63 15900.00 91.54 79.22 8781.87 871.48 2005.08 -3716.81 2005.08 77.221. 3.00 6.70 5945164.17 646686.94 End Curve 1591569 91.87 78.65 8781.32 870.91 2024.38 -3713.04 2024.38 HS 3.00 6.70 5945188.32 646706.18 Curve 3/100 16449.62 91.87 78.65 8765.83 855.42 2543.72 -3808.76 2543.72 168.3L 0.00 6.74 5945282.54 647223.38 16500.00 90.19 78.34 6765.01 8854.60 2593.08 -3598.71 2593.08 188.3E 3.00 6.74 5945293.53 647272.53 V-10131917 18506.63 90.00 78.30 8765.00 8854.59 259957 -3597.37 2599.57 149.65L 3.00 8.74 5945295.00 647279.00 End Curve 18550.52 88.86 77.64 8765.44 8855.03 2642.49 -3588.22 264249 HS 3.00 8.75 5945304.97 647321.73 Curve 3/100 17279.82 88.86 77.84 8779.90 8869.49 3354.73 -3432.09 3354.73 31.99E 0.00 6.80 5945474.75 648030.79 V-10B Tgt8 17285.18 89.00 77.55 6780.00 8889.59 3359.97 -3430.93 3359.97 38.04L 3.00 6.80 5945478.00 848038.00 17300.00 89.35 7728 8780.21 8869.80 3374.43 -3427.70 3374.43 38.04E 3.00 6.80 5945479.51 648050.40 End Cure 17300.59 89.36 77.27 8780.22 6869.81 3375.01 -3427.57 3375.01 HS 3.00 8.80 5945479.65 648050.97 1-109 0919 18452.19 89.36 77.27 8793.00 8882.59 4498.21 -3173.73 4498.21 0.00 6.87 5945755.00 649169.00 Survey Type: Def Plan Legal Description: Nort/na IVI Eastina IX1 Surface:3889.3 FSL 205.4 FEL S33 T11 N RISE UM 5948841.490 644611.010 Tie-In:3858 FSL 197 FEL 33 TI IN R13EUM 5948830.450 644619.310 y-10b tgl9/BHL:894 FSL 994 FEL 34 T11N R13EUM 5945755.000 649169 000 Drilling Office 2.0.960.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-10\Y-10B\Y-10B(P8) 11/23/2011 11:11 AM Page 2 of 2 .__..__...... . by 0 Schlumberger WELL FIELD STRUCTURE Y-10B (P8) Prudhoe Bay Unit-WOA Y-PAD Magnetic Parameters Swap Locatgn N0027 Nash State Plane.Zore04,US Feet Miscellaneous Model'. BGGM 2011 Dy: 80.973' Cate. November 02.2011 Let N 7018 3.581 NbMirg: 5948841 49 SUS Grid Cony 1.10075585' Slot: Y-10 TIM Ret RTE(89.508 above MSL) Meg Dec: 21 237' FS'. 576570nT Lon: W148 49 50139 Easeig'. 64481101 SUS Scab Fed:09%92378 Plan Y-10B(P8) Srvy Dale.November 02,2011 -3000 -1500 0 1500 3000 4500 • 0 KBE 0 1500 1500 Tie-in Survey 13 3/6- op of Whipstock 3000 Base of Whipstock ¢glvq 4N1°9 3000 End Curve 0 0 in 4500 4500 c n 03 Tu Curve 4/100 0 CO O opColvT�e LtM3j'_.._.._.._.._ 6000 6000 Top HRZ 7500 i 7500 Sn_=Kr'_.._ .._.._.._.._ _.._..-..-:--..-..-.._.._..-..-..- .._.._.._.._.._.._.._.-.._.._.._.._.._.._._.. ._.._-._..-..-..-.._..-......_.._.. Top Kingak Curve 3/400 Y-10B Tgt4 End Curve End Curve End Curve End Curve Y-10B Tgt7 Y-10B Tgt2 Y-10B Tgt3 Curve 3/100 Curve 3/100 Curve 3/100 r V-10B T9 ti Titin End t urve V-108(P81 9 518.• Curve 3/190 End Curve To Sagg River s v 0 RhM1hi1V� •s•rr•• I "t. .r•,,_,,_,•_••_•,_ _•_t.'rr•rr. .r.....r..rr.,,�..,, •..,.rr... r. rr .a ...... 900 Top Ivishak .. 9000 V-i0• End Curve 1-10B Tgt9 Curve 15/100 Curve 3/100 Curve 4100 Curve 3/100 10 7.. Y-10B 7gt6 Y-/0B'gt8 V-10B Tgt1 Marker M6, End Ourve -3000 -1500 0 1500 3000 4500 Vertical Section(ft)Azim=90°,Scale=1(in):1500(ft) Origin=0 N/-S,0 E/-V by 0 Schlumberger WELL FIELD Y-10B (P8) Prudhoe Bay Unit-WOA Y-PAD Magnetic Parameters Surface Location NAD27 Alaska State Plan.Zone 04,US Feet Miscellaneous Model' BGGM2011 Dip: 80973• Date'. November 02,2011 Lit N 7016 3.591 Northing'. 694684149SUS Grd Cony:1.10075585• Slot Y-10 ND Ref R1E(89.598 above MSL) Mag Dec- 21.237• FS 57657.807 Lan'. W 14649 50.139 Fasting-. 644611 01'WS Shce Fad:099992376 Plan: Y-105(P81 Sny Date.November 02,2011 -3000 -1500 0 1500 3000 4500 3000 3000 N r 1500 o- 1500 -10A Y-10 A A A Z x" Curve 4.5/100 KBE 0 AIi41La.515C !. 13 3/8" 0 O Top of Whipstock Tie-In Survey O U7 Base of Whipstock C End Curie 11 0) -1500 -1500 (A Curve 4/100 V V V End Curve Y-10B Tgtt Curve 3/100 7" 7 Y-10B Tgt2 Y-108 Tgt9 -3000 • End curve.. -3000 Marker Mb Curve 3/100 End Curve aloe(P8) • Curve 15/Varve31100 . .. . . End Curve Y-10B Tgt3 End Curve Curve 3/100 End Cu Y-10B Tgt8 End Curve Y-t OB Tgt7 Curve 3/100 Curve 3/100 Y-10B Tgt6 Curve 3i100 -4500 vtOBTge • •••• -4500 End Ciarve Curve 3/100 Y-10B Tgt5 End Curve -3000 -1500 0 1500 3000 4500 «< W Scale=1(in):1500(ft) E >>> 47- 45- -21/Y-21 Y-10/Y-10 -21/Y-21 42- �_ Project: Prudhoe Ba -21/Y-21 Site: PB Y Pad Well: Y-10 Wellbore: Plan Y 10B 37- Design: Y-10B (P8) 35- Y-25/Y 25 32- 30- c Y-25/Y-25 (P12) C 27- Y- /Y-25 o - m - n - (n 25— a) c U22- o - d c a) O 20- Y-25/Y-25 ' 2) 17- 15- Y-25/Y-25 '12) 12- 10- Y-10/Y-10 7- 5- 2- 0 ri11r I1p/YiO, oIlrIII11 , 111111l1 / 1r , iiii , i1i111111111111111111iii , ii111 2700 2750 2800 2850 2900 2950 3000 3050 3100 3150 3200 3250 3300 3350 3400 Measured Depth (100 Win) 1 BPPASSPORT Anticollision Report .0.4 ,... ;, Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-10-Slot 10 Project: Prudhoe Bay ND Reference: Y-10B Plan©89.59ft(Doyon 25) Reference Site: PB Y Pad MD Reference: Y-10B Plan @ 89.59ft(Doyon 25) Site Error: 0.00ft North Reference: True Reference Well: Y-10 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-10B Database: EDM.16-ANC Prod-WH24P Reference Design: Y-10B(P8) Offset ND Reference: Offset Datum Reference Y-10B(P8) Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer(WARNING:There is hidden tight data in this project Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 2,041.27ft Error Surface: Elliptical Conic Survey Tool Program Date 11/16/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 103.90 2,703.90 Y-10 SRVY 1 Boss-Gyro(Y-10) BOSS-GYRO Sperry-Sun BOSS gyro multishot 2,703.90 2,770.00 Y-10B(P8)(Plan Y-10B) GYD-GC-SS Gyrodata gyro single shots 2,770.00 3,400.00 Y-10B(P8)(Plan Y-1OB) GYD-GC-SS Gyrodata gyro single shots 3,400.00 4,900.00 Y-1OB(P8)(Plan Y-10B) MWD MWD-Standard 3,400.00 12,359.48 Y-10B(P8)(Plan Y-10B) MWD+IFR+MS MWD+IFR+Multi Station 12,000.62 14,800.00 Y-10B(P8)(Plan Y-1OB) MWD MWD-Standard 12,000.62 18,451.87 Y-1OB(P8)(Plan Y-10B) MWD+IFR+MS MWD+IFR+Multi Station 11/23/2011 12.-14:58PM Page 2 of 5 COMPASS 2003.16 Build 73 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-10-Slot 10 Project: Prudhoe Bay TVD Reference: Y-10B Plan @ 89.59ft(Doyon 25) Reference Site: PB Y Pad MD Reference: Y-10B Plan @ 89.59ft(Doyon 25) Site Error: O.00ft North Reference: True Reference Welk Y-10 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-10B Database: EDM.16-ANC Prod-WH24P Reference Design: Y-10B(P8) Offset ND 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 A Pad A-05-A-05-A-05 Out of range A-05-A-05A-A-05A Out of range A-05-A-05A-A-05A wp11 Out of range A-16-A-16-A-16 Out of range PB Y Pad Y-05-Y-05-Y-05 16,372.81 10,100.00 759.18 308.81 465.51 -:-6--Major-sk Y-05-Y-05A-Y-05A 15,392.50 10,725.00 183.83 338.97 -83. : FAIL-Major Risk Y-05-Y-058-Y-0513 15,392.50 10,725.00 183.83 338.97 -8 19 FAIL-Major R' Y-05-Y-05BPB1-Y-05BPB1 15,392.50 10,725.00 183.83 338.97 -83. : F. .or Risk Y-06-Y-06-Y-06 2,874.95 2,875.00 447.11 45.30 401.85 Pass-Major Risk Y-06-Y-06A-Y-06A 2,874.95 2,875.00 447.11 45.41 401.74 Pass-Major Risk Y-06-Y-06APB1-Y-06APB1 2,874.95 2,875.00 447.11 45.30 401.85 Pass-Major Risk Y-07-Y-07-Y-07 2,831.16 2,825.00 318.93 42.57 276.37 Pass-Major Risk Y-07-Y-07A-Y-07A 2,634.33 2,650.00 279.23 40.90 238.36 Pass-Major Risk Y-07-Y-07APB1 -Y-07APB1 2,634.33 2,650.00 279.23 41.06 238.21 Pass-Major Risk Y-08-Y-08-Y-08 1,727.83 1,725.00 217.16 30.38 186.78 Pass-Major Risk Y-08-Y-08A-Y-08A 1,727.83 1,725.00 217.16 30.38 186.78 Pass-Major Risk Y-09-Y-09-Y-09 2,852.40 2,850.00 95.37 45.79 49.57 Pass-Major Risk Y-09-Y-09A-Y-09A 2,851.72 2,850.00 95.36 45.78 49.58 Pass-Major Risk Y-09-Y-09AL1-Y-09AL1 2,851.72 2,850.00 95.36 45.64 49.72 Pass-Major Risk Y-09-Y-09AL1-01-Y-09AL1-01 2,851.72 2,850.00 95.36 45.64 49.72 Pass-Major Risk Y-09-Y-09APB1-Y-09APB1 2,851.72 2,850.00 95.36 45.78 49.58 Pass-Ma'. r'sk Y-10-Y-10-Y-10 2,778.90 2,775.00 0.08 1.78 -1.69 •IL-Major Ris Y-10-Y-10A-Y-10A 2,778.90 2,775.00 0.08 1.78 -1.69 FAIL-Major Risk Y-11-Y-11-Y-11 3,850.27 3,800.00 62.00 76.23 -9.58 FAIL-Major Risk Y-11-Y-11A-Y-11A 3,850.27 3,800.00 62.00 76.23 -9.58 FAIL-Major Risk Y-11-Y-11B-Y-11B 3,852.15 3,800.00 62.24 76.38 -9.61 FAIL-Major Risk Y-11-Y-11 BPB1 -Y-11 BPB1 3,852.15 3,800.00 62.24 76.38 -9.61 - -Ma'or R. Y-11-Y-11C-Y-11C 3,857.04 3,800.00 62.90 76.75 -9.66 FAIL-Major Risk Y-11_DIMS-Y-11-Y-11 89.56 89.59 110.34 2.12 108.22 Pass-Major Risk Y-11_DIMS-Y-11A-Y-11A 89.56 89.59 110.34 2.12 108.22 Pass-Major Risk Y-11_DIMS-Y-11 B-Y-11 B 89.56 89.59 110.34 2.12 108.22 Pass-Major Risk Y-11_DIMS-Y-11BPB1-Y-11BPB1 89.56 89.59 110.34 2.12 108.22 Pass-Major Risk Y-11_DIMS-Y-11C-Y-11C 89.56 89.59 110.34 2.12 108.22 Pass-Major Risk Y-12-Y-12-Y-12 3,648.83 3,600.00 107.59 55.02 52.76 Pass-Major Risk Y-13-Y-13-Y-13 3,998.96 3,850.00 278.88 74.17 207.73 Pass-Major Risk Y-14-Y-14-Y-14 13,644.88 10,487.00 1,014.89 201.10 826.28 Pass-Major Risk Y-14-Y-14A-Y-14A 13,396.77 11,175.00 133.93 182.52 -14.24 FAIL-Major Risk Y-14-Y-14B-Y-14B 13,396.77 11,175.00 133.93 182.52 -14.24 FAIL-Major Risk Y-19-Y-19-Y-19 3,476.15 3,400.00 216.74 58.25 159.20 Pass-Major Risk Y-20-Y-20-Y-20 574.38 575.00 148.41 13.40 135.01 Pass-Major Risk Y-20-Y-20A-Y-20A 560.22 550.00 147.90 12.90 134.99 Pass-Major Risk Y-20-Y-20AL1-Y-20AL1 560.22 550.00 147.90 12.90 134.99 Pass-Major Risk Y-20-Y-20AL2-Y-20AL2 560.22 550.00 147.90 12.90 134.99 Pass-Major Risk Y-20-Y-20AL2PB1-Y-20AL2PB1 560.22 550.00 147.90 12.90 134.99 Pass-Major Risk Y-20_DO NOT USE-Y-20-Y-20 574.38 575.00 148.41 13.40 135.01 Pass-Major Risk Y-20 DO NOT USE-Y-20A-Y-20A 560.22 550.00 147.90 12.90 134.99 Pass-Major Risk Y-201-DO NOT USE-Y-20AL1-Y-20AL1 560.22 550.00 147.90 12.90 134.99 Pass-Major Risk Y-20DO NOT USE-Y-20AL2-Y-20AL2 560.22 550.00 147.90 12.90 134.99 Pass-Major Risk Y-20_D0 NOT USE-Y-20AL2PB1-Y-20AL2PB1 560.22 550.00 147.90 12.90 134.99 .'._i.1=4 Y-21-Y-21-Y-21 3,293.26 3,275.00 40.12 55.55 - . 4 FAIL-Major Risk Y-21A-Y-21A-Y-21A 3,293.26 3,275.00 40.12 55.55 4.74 FAIL-Major Risk 11/23/2011 12:14:58PM Page 3 of 5 COMPASS 2003.16 Build 73 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-10-Slot 10 Project: Prudhoe Bay TVD Reference: Y-10B Plan @ 89.59ft(Doyon 25) Reference Site: PB Y Pad MD Reference: Y-10B Plan @ 89.59ft(Doyon 25) Site Error: O.00ft North Reference: True Reference Well: Y-10 Survey Calculation Method: Minimum Curvature Well Error: O.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-10B Database: EDM.16-ANC Prod-WH24P A Reference Design: Y-1 OB(P8) Offset ND Reference: Offset Datum Summary I 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 Y Pad Y-22-Y-22-Y-22 996.07 1,000.00 27.86 25.92 1.94 Pass-Major Risk Y-22-Y-22A-Y-22A 996.07 1,000.00 27.86 25.92 1.94 Pass-Major Risk Y-23-Y-23-Y-23 1,914.62 1,925.00 148.35 38.31 110.05 Pass-Major Risk Y-23-Y-23A-Y-23A 1,914.62 1,925.00 148.35 38.31 110.05 Pass-Major Risk Y-23-Y-23APB1-Y-23APB1 1,914.62 1,925.00 148.35 38.31 110.05 Pass-Major Risk Y-23-Y-23APB2-Y-23APB2 1,914.62 1,925.00 148.35 38.31 110.05 Pass-Major Risk Y-23-Y-23B-Y-23B 1,923.76 1,925.00 148.51 38.50 110.02 Pass-Major Risk Y-23_DIMS-Y-23-Y-23 89.64 89.59 184.88 2.12 182.76 Pass-Major Risk Y-23_DIMS-Y-23A-Y-23A 89.64 89.59 184.88 2.12 182.76 Pass-Major Risk Y-23_DIMS-Y-23B-Y-23B 89.64 89.59 184.88 2.12 182.76 Pass-Major Ris Y-24-Y-24-Y-24 1,604.81 1,625.00 236.76 29.04 207.73 P - ajor Ris Y-25-Plan Y-25B-Y-25(P12) 3,151.28 3,150.00 10.75 47.37 -36.3 FAIL-Major Risk Y-25-Y-25-Y-25 2,885.13 2,875.00 26.09 44.50 -1 .41 FAIL-Major Risk Y-25-Y-25A-Y-25A 2,885.13 2,875.00 26.09 44.50 -1 . 1 FAIL-Major R. Y-25_DIMS-Y-25-Y-25 89.60 89.59 38.19 2.12 36.07 -ass-Major Risk Y-25_DIMS-Y-25-Y-25 89.60 89.59 38.19 2.12 36.07 Pass-Major Risk Y-26-Y-26-Y-26 3,936.07 3,825.00 164.08 63.40 101.61 Pass-Major Risk Y-26-Y-26A-Y-26A 3,936.07 3,825.00 164.08 63.40 101.61 Pass-Major Risk Y-27-Y-27-Y-27 508.15 500.00 187.51 10.56 176.95 Pass-Major Risk Y-29-Y-29-Y-29 2,850.96 2,850.00 135.12 40.90 94.22 Pass-Major Risk Y-29A-Y-29A-Y-29A 2,850.96 2,850.00 135.12 40.90 94.22 Pass-Major Risk Y-30-Y-30-Y-30 2,872.82 2,875.00 248.67 39.57 209.11 Pass-Major Risk Y-30-Y-30L1-Y-30L1 2,872.82 2,875.00 248.67 39.57 209.11 Pass-Major Risk Y-31-Y-31-Y-31 2,850.58 2,850.00 366.84 43.86 322.99 Pass-Major Risk Y-33-Y-33-Y-33 2,849.93 2,850.00 469.63 38.93 430.70 Pass-Major Risk Y-34A-Y-34A-Y-34A 17,606.70 11,296.00 797.07 216.24 58428 Pass-Major Risk Y-35-Y-35-Y-35 18,052.21 10,750.00 303.17 244.85 75.23 Pass-Major Risk Y-35-Y-35A-Y-35A 17,524.18 10,550.00 423.47 199.85 248.50 Pass-Major Risk Y-37-Y-37-Y-37 1,508.71 1,500.00 72.10 23.25 48.95 Pass-Major Risk Y-37-Y-37A-Y-37A 1,508.71 1,500.00 72.10 23.14 49.05 Pass-Major Risk Y-37-Y-37APB1-Y-37APB1 1,508.71 1,500.00 72.10 23.25 48.94 Pass-Major Risk Y-37 DIMS-Y-37-Y-37 89.57 89.59 72.05 2.12 69.93 Pass-Major Risk Y-37_DIMS-Y-37A-Y-37A PB1 89.57 89.59 72.05 2.12 69.93 Pass-Major Risk Y-37_DIMS-Y-37APB1-Y-37A P82 89.57 89.59 72.05 2.12 69.93 Pass-Major Risk Y-37_DIMS-Y-37APB2-Y-37A 89.57 89.59 72.05 2.12 69.93 Pass-Major Risk 11/23/2011 12:14:58PM Page 4 of 5 COMPASS 2003.16 Build 73 Project: Prudhoe Bay Site: PB Y Pad Well: Y-10 Wellbore: Plan Y-10B Design: Y-10B (P8) From Side track point to 7"liner Scan interval 25 ft Scale 1 : 50 Minor risks applied as per report Y-12v-12 0 Y-25/Y-25 Y-25/Y-25A Y-261K `j -� 3625 \r-10A 330 I —, t +,:; � 11 30 Y-25/Y-25 (P12),- 1402 . 0 807 4004 3789 '. 1;'7 ', ` LL• 40,-5 33981 ._;' t_ , 3770 all ��^ 1111.4. ' 11,3936 3, 7.4_,_ r--,_ 373'1 /' ' / 3913 39438 'd-^,, 371 ♦ • 3890 \3836844.4,N7:1,3313 ,3691 10• r 300 36E7 / 6 1,�064C� 60 :is,* /� ,T 1---- -:, o \ _ 3438 Ir -...N• !/ 819 j-, s. 37;3 75 15 3 ��\ X795 3,0 939 r �� / 3583 � \� 33439 ��/�, '� � 32 a _ _ �j / 356G 3321 32!10 :f 004441' r• !��, 3537 I 35•, 50 3175 ��(�%,���%�!`�e�•� i "¢��:y`. 3 4 3273 3752 / 11, / 11 f` Ik.• • + ,+ic' III 4 / �1 $400•`�,,, >' �wt]�y,'It,� �.(, �� , �i�\Ai II,l!'S ,,,,�, ii-Ay,• 41 ' \�.+v x'1, �,� r 0'N'' is 1 vi'I14 .1°1�r� � s.. r,1270 -- ' ri tpfilft-t, itii i. ,t7-_, ‘,. --------- . W ' )04,4,4 A 40 �>•plifj 'o' MP' i er:i+. �� �j�4.04# 4 m®li1 .40 rPr, y, ` c%/�/y7�; 11.'1�iA',+` i �,fi����, I.y' a/1�� .� "wyok, �� m► � 'r'�.v...;;10, o 'of.. '..!!?!.!‘le V.$051—."- -..-^---—.-- ..—.,._ .1 "'''-'T 40 Atte-t-•4 tili.Aq'tihu•StilovA...4,..„—k 4 11111471Z-71 Y-17/3-11C 240120 101 t-21„, �: 77,1 795 ,38 : Y-21A/Y--21A 12 150 210 150 175 180 Travelling Cylinder Azimuth(TFO+AZI)[O]vs Centre to Centre Separation[50 ft/in] Project: Prudhoe Bay Site: PB Y Pad Well: Y-10 Wellbore: Plan Y 10B Design: Y-10B (P8) From 7" liner to TD Scan interval 25 ft Scale 1 : 50 Minor risks applied as per report 0 17 I 330 30 �4tu.. 10 150 1 p„...„„,,,,, ofrilwoo Ator•ftwA io. 30oireami, , 6° .... _„,,,,, A ,..,,,,-,0.,,s, 75 1 . là . I \ 1411 "a- 4\10/ 2 lipla Apir. *Al /, 0 itiliefti .A11111111. 270 -.� / , 111 ' ii�l ; Atroi --1 ,0 10, .#0. 4 ..... Atii oeitimesera 40,10,. 14 . ;.,,,,,A00,(„,..Afrowiti" vir „,..,qty,. .1p........401 5.0e-:,,f, 0.404 ma, iriwith,,Ii. 1,11 ,,,,,ziate,orfAir rweiw- 1\4 I IVO* '44 1°igi'Alf 4 I r- '441,400 M° SWAT 009-.4111.1.---�j tippilivr4fAIMMIfranisar 120 4147411111441111P/Odibi 180W01."11 'lir •4421�. ��IOpet4.001 111 ', * 4150�I bi.,astigm 180 Travelling Cylinder Azimuth(TFO+AZI)[O]vs Centre to Centre Separation[50 ft/in] TREE= 4" CIW SAFET` -ES:H2S READINGS AVERAGE 125 ppm WELLHEAD RES SSSV WHEN ON MI. ACTUATOR= BAKER C Y-1 OA WELL ANGLE(SIDETRACK"Al A 0°@ 9657'. *** KB ELEV= 85 69' OVERSHOT GUIDE COVERS CUT STUB.SEE TELEx FOR BF ELEV- 51.59' J 1 DETAILS.T CHROME NIPPLES IN TBG "E KOP= 3300' 2032' F-4-1/2" HES X NIP(9CR),ID=3.813" Max Angle= 98°@ 10915' 20" CONDUCTOR - 144' Datum MD= 9502' Datum TVD= 8800'SS 2574' I--9-5/$" DV PKR 13-3/8" CSG,72#,L-80,ID= 12 347" H 2709' Minimum ID = 2.786" @ 9027' , 8670' }-4-1/2"HESX NIR(9CR),ID=3.813" TOP OF 3-3116" LINER Z 8701' -9-5/8"x 4-1/2"BKR S-3 PKR, ID=3.87" ' 8725' -4-1/2"HESX NIP(9CR), ID=3.813" 4-1/2"TBG, 12,6#, L-80 TCII, 0152 bpf, ID=3.958" H 8787' 8796' -9-5/8"X 4-1/2" UNIQUE OVERSHOT 4-1/2"TBG STUB(08/11/07) H 8795' ' 8832' I-'4-1/2" HES X NIP(9CR),ID=3.813" Z 8843' }-9-5/8"x 4-112"TMU HBBP-T PKR, ID=3.92" 8867' E-4-1/2" HESX NIP(9CR), ID=3.813" ' 8888' }-4-1/2"HES X NIP(9CR),ID=3.813" 4-1/2"TBG, 12.6#,L-80 NSCT, .0152 bpf, ID=3.958" HI 8903' I j 4-1/2"TBG STUB(TAGGED11/03/95) H 8907' 8910' }-9-5/8"X 4-1/2"UNIQUE OVERSHOT 8915' j-',BAKER TBG SEAL ASSY 8935' }-9-5/8"x 4-1/2"BKR PKR, ID=4.000" 8979' I-'4-1/2" HES X NIP, ID=3.813" • 1 (TOP OF 7" LNR H 8985' F--- i' .1 1. 8989' }-3.70" BKR DEPLOY SLV, ID=3.00" ,i' 1 II 8998' }-3-1/2"HES X NIP, ID=2,813" ' 3-1/2" LNR,8.81#,L-80 STL, .0087 bpf, ID=2.992" H 9027' ;� �' I 9012' }-4-1/2"HES XN NIP,MILLED ID=3.8"(02/05/05) !` ell BEHIND PIPE 4-1/2"TBG, 12 6#, L-80, 0152 bpf, ID=3.958" H 9038' O ►i TOP OF CEMENT(01/19/05) 9449 ..'� mil 9027' 1-3-1/2"X 3-3/16"XO, ID=2.786" �0 111114 9037' ELM _I CUT OFF TBG TAIL(02/17/88)(BEHIND PIPE) 9-5/8"CSG,47#, L-80, ID=8.681" --I 9464' 1111 ►1111. 1111 11111 7"WHIPSTOCK(01/14/05) H 9503' 1/4 1111. 14 114 7" LNR,29#,L-80, .0371 bpf, ID=6.184" 10270' 141 4.4 `4`�♦, MIL LOUT WINDOW(Y-10A) 9507'-9512' PERFORATION SUMMARY •`�4 REF LOG CBL ON 07/21/81 1111111♦ ANGLE AT TOP PERF: 95°@ 10820' 11111111111111] 4000. i' Note:Refer to Production for historical perf data ���!41/4 44 1111 SIZE SPF INTERVAL Opn/Sqz DATE 114 1N1 2" 6 10820- 10845 0 02/22/05 1111111�1�J1114 2" 6 10880- 10905 0 02/22/05 11074' PBTD 2" 6 10930- 10950 0 02/22/05 2" 6 10970- 11000 0 02/22/05 2" 6 11050- 11070 0 02/22/05 3-3/16"LNR,6.2#, L-80 TCII, - 11109' �o .0076 bpf, ID=2.80" `u, DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07/22/81 VAN II ORIGINAL COMPLETION 02/16/11 MB/JMD ADDED SSSV SAFETY NOTE WELL: Y-10A 11/05/95 D14 RWO 01/23/12 TMN/JMD ADDED H25 SAFETY NOTE PERMIT No:`2042500 ' 02/22105 NORDIC1 CTD SIDETRACK(Y-10A) API No. 50-029-20587-01 08114/07' D14 RWO SEC 33,T11 N, R13E, 1411'FNL&205'FEL 02/10/08 DBM/PJC DRLG DRAFT CORRECTIONS 01/09/11 TTR/PJC SAFETY NOTE UPDATE BP Exploration(Alaska) TREE= 4t5"CWY-1 Aiii��• SAFETYUICONO) REQUIRES ASSSVWHEN ON WB_LHEAD= CW acnlarCR= ,-:used RST (PP', KB.e.EV= 85.68r KOP= 277 120'0CMCIE/."fOR141' I 2100' H MaxAngp= �_..: j3 : o : 2574' ¢S.Iv PKR 61111TVD= 880.755 r 2500' Lt. RVALVE(2-.25 cm/d Ir 0 GAS LFT MANDRELS 133/8'CSG,72$,L-80,o=12.34r H 2709' St MD TVO DEV TYPE VLV LATCH PORT DATE 170P r makN ' I ' 3 Top of 9 618'whipstock sot at 2770'MD 0-471 419•1110.4t, Minimum ID= XN NIP at 11,826'MD 11�111+11111/111•t/t/`+• 11111.111111111 ID =3275" •1•••16 444:N41Y-1 OA 1111 -44 •.4*41n. 9.5'CSG,478,L-80.0=8.681' H 9864' I I -( 11706' D■3.813' I 8-1/2"hob? EL 11728' –17'X4-if2'1'+ mss: 1 • I 11826' h4-',2'XNPIDa 3$1= 11E3 1' 1 4SSG,26$, PERFORATION SU.IAARY Rff LOG: ANGLEAT TOP PERF: Note:Refer to Producton D8 for t atonal pert data –13400 Elp f/Cecnerr Jab SEE SPF INTERVAL 0pnSgz DATE —I H wwwws ;.�. -.aawaaa�i.: I.-. 6-1/8"hole Jam. —I H18457I Lw TE Ra BY CC'.0.1.?i S DATE REV BY COMWENTS PRL HOE BAY UNIT 07/22/81 VAN II ORIGINAL COMPLETION 02/16/11 1.18/..0 AIMED SSSV SAFETY NOTE WELL: Y-109 11/05)95 D14 RWO 11;119/11 MSE PROPOS®RST WR/6 PQM No: 02/22/05 NORDICI CTD SIDETRACK(Y-10A) 02431112 ,gr Y-10(31planned wp8 APMNo: 50-029-20587-02 08/14/07 014 RWO ...EC 33,T11N,R13E 1411'Rt.&205'FEL 02/10/08 DBMPJC [RLG DRAFT CORREMONS 01/09/11 TTRPJC SAFETY NOTEUPDATE OP Scpbrallow(Meaka) Y-10Bi PTD Page 14 2/10/2012 N _________....---0. D m ./ W W � �� 1EC Y ji 13 ' nw 0 XI CD m i w D j o PcI .. / l< -c • �/ ' N J 0 v o *A CO f0 I ( th J O O O ' / 0 o j X N ) 4. 03 D i2 o • M N ^ 0 00 \1 a N 0 ):v. ' • a 0 w vl V\- \ „- V A J ♦ ' 1 i \ \.S.,-)0 O co D -+o- 1 w �. D . D CO J A Owa) { cn N N D fD ♦ o co iv w N\ rn D D A Page 1 of 2 Schwartz, Guy L (DOA) From: Rose,John G(ASRC)[John.G.Rose@bp.com] Sent: Tuesday, February 28,2012 11:56 AM To: Schwartz,Guy L(DOA) Cc: Hubble,Terrie L Subject: Y-10Bi PTD Attachments:Y-10Bi PTD(REVISED(02-28-12).ZIP Guy, Please note that attached"revised"version of our request for a PTD for the Y-10Bi well where I have completed the AOR for this planned injection well and modified the Operation Summary(step#25) relating to the evaluation of the 7"cement job for this well. Please let me know if you have any questions or concerns and thanks for your help. -jr John G.Rose BP Staff Engineer Anchorage,AK rose11@bp.com 907/564-5271 Office 907/748-5223 Cell 907/243-8813 Home From: Rose,John G(ASRC) Sent:Thursday,February 23, 2012 9:17 AM To: 'Schwartz,Guy L(DOA)' Subject: FW: Y-10B offset wells and map Guy, As you can see,the sub-surface folks went back and confirm the wells with the 1/4 area of review and now I need to get some additional well files(as listed below)to look at the details of the production casing cement jobs on those well to complete the AOR for this injection well. Given that I will not get the files for a day or two, I hope to have the AOR completed by mid next week at which time I will forward to your office. If you have any questions or concerns, please advise. Thanks Y-14 Original Drill&Complete 10/88 Y-14 A Sidetrack 11/95 Y-09 Original Drill&Complete 7/81 Y-09A Sidetrack 7/97 Y-05 Original Drill&Complete 6/80 Y-05A Sidetrack 8/95 Y-37 Original Drill&Complete 10/93 Y-35 Original Drill&Complete 7/91 Y-35A Sidetrack 1/03 John G.Rose BP Staff Engineer Anchorage,AK rose11@bp.com 2/28/2012 Page 2 of 2 907/564-5271 Office 907/748-5223 Cell 907/243-8813 Home From:Abel,Cole D Sent: Wednesday, February 22, 2012 1:48 PM To: Rose,John G (ASRC) Cc: Peltier, Megan Subject: Y-10B offset wells and map John, We revised the SOR and map to include all wells within 1/4 mile of the lateral section for the Y-10B. Megan has reviewed the wells we added. The revised SOR is called Y-10B SOR_rev_022212.xls and is out in the wellfile. I've also attached the revised map. Let me know if there is anything else you need. (13) Drilling Permitting Requirements: 1 Sundry 2 Permit To Drill 3 Dist.to nearest property line(ft.): 11,582 Dist.to nearest well within pool(ft): 387' Wells within 1/4 mi.of this injection well @ top Dist,Ft. Annulus Integrity Comments reservoir Y-11 387' sidetracked to Y-11C,no integrity issues Y-11A 1077' sidetracked to Y-11C,no integrity issues Y-14 1155' sidetracked to Y-14B,no integrity issues Y-14B 105'(vertical-crosses Y-148 lateral in Ivishak), operable,no integrity issues Y-09 372' sidetracked to Y-09A,no integrity issues Y-09A 883' operable,no integrity issues Y-05 846' sidetracked to Y-05B,no integrity issues Y-05A 127'(vertical-crosses Y-05A lateral in Ivishak) sidetracked to Y-05B,no integrity issues Y-37A 964' suspended,no integrity issues Y-34A 771'(from Ivishak BHL) operable,no integrity issues Y-35 403' sidetracked to Y-35A,no integrity issues Y-35A 605' operable,no integrity issues Y-21A 933' operable,no integrity issues A-05A 361'to Ivishak lateral operable,no integrity issues Well Status @ WAG injector Completion DNR Land Use Permit No. Cole 2/28/2012 Land Administration System Page 1 of 1 Alaska DNR Case Summary File Type:ADL File Number: 28287 See Township,Range,Section and Acreage? 0 Yes No New Search File: ADL 28287 Mat' Search for Status Plat Updates As of 02/15/2012 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: 08/09/1965 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: o11N Range: 013E Section: 27 Section Acres:640 Search Plats Meridian: U Township: olN Range: o13E Section: 28 Section Acres:640 Meridian: U Township: oLN Range: o13E Section: 33 Section Acres:640 Meridian: U Township: oiN Range: 013E Section: 34 Section Acres:640 Legal Description 05-28-1965***SALE NOTICE LEGAL DESCRIPTION*** C14-98 T11N-Ri3E-UM 27,28,33,34 2560.00 End of Case Summary Department of Natural Resources 550 W.7th Ave,Suite 1280,Anchorage,AK 99501-3557 Phone:907-269-8400 Fax:907-269-8901 TTY:907-289-8411 State of Alaska 1©201011 Webmaster http://dnr.alaska.gov/projects/las/Case_Summary.cfm?FileType=ADL&FileNumber=2828... 2/15/2012 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME 7.8 G/ J''Ve7g PTD# Development / Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: 2.eI/,D,/OE' .2§.49)/ POOL: Pi 9,44.1 GL" i '/G Check Box for Appropriate Letter/Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to produce/inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev:9/09/2011 • 0 D o ( 3 0 m1 3 0 o co co H ; r 3. S N N 3 N 91 c) m a cQ C\ 0 _, 0 c\ 0 o - X O� n N N N D) O O Z. O O N O N O N l N Ni N O ,':n W 0) 0) 0) W W 0) W co 0) N N) N N N N) N) N) N N CO Oo J Q) 01 A W N -, CO CO -4 0) CJi A 0) N -, O CO CO -4 0) C.31 A CO N -+ 0 CO CO 0) 01 A 0) N -, O -.I m 0 W Cn O v K ( * O W 030 �. 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