The URL can be used to link to this page

Home My WebLink About210-101MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Wednesday, October 22, 2025 SUBJECT:Mechanical Integrity Tests TO: FROM:Sully Sullivan P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC S-41A PRUDHOE BAY UNIT S-41A Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 10/22/2025 S-41A 50-029-22645-01-00 210-101-0 W SPT 8804 2101010 2250 2349 2350 2348 2348 254 298 294 294 REQVAR P Sully Sullivan 9/8/2025 2 year MIT-IA per AIO 3C.004 to MAIP (2250) 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 S-41A Inspection Date: Tubing OA Packer Depth 86 3007 2918 2900IA 45 Min 60 Min Rel Insp Num: Insp Num:mitSTS250910165458 BBL Pumped:3.4 BBL Returned:4 Wednesday, October 22, 2025 Page 1 of 1             Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 1400 Anchorage, AK 99503 Phone: (907) 564-4891 02/09/2024 Mr. Mel Rixse Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Re: Prudhoe Bay Surface Casing by Conductor Annulus Top-offs of Cement, Corrosion Inhibitor through 02/09/2024. Dear Mr. Rixse, Enclosed please find a copy of a spreadsheet with a list of Prudhoe Bay wells that were topped-off with cement, corrosion inhibitor in the surface casing by conductor annulus through 02/09/2024. Cement top-offs are executed as needed to mitigate the void space left at surface by minor cement fallback during the primary surface casing by conductor cement job. The remaining void space between the top of the cement and the top of the conductor is filled with a heavier than water corrosion inhibitor to reduce the risk of external surface casing corrosion. The attached spreadsheets include the well names, API and PTD numbers, treatment dates and volumes. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404 Report of Sundry Operations. If you have any additional questions, please contact me at 564-4891 or oliver.sternicki@hilcorp.com. Sincerely, Oliver Sternicki Well Integrity Supervisor Hilcorp North Slope, LLC Digitally signed by Oliver Sternicki DN: cn=Oliver Sternicki, c=US, o=Hilcorp North Slope LLC, ou=PBU, email=oliver.sternicki@hilcorp.com Date: 2024.02.09 11:15:58 -09'00' Oliver Sternicki Hilcorp North Slope LLC. Surface Casing by Conductor Annulus Cement, Corrosion Inhibitor Top-off Report of Sundry Operations (10-404) 02/09/2024 Well Name PTD #API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date L-293 223020 500292374900 30 8/29/2023 S-09A 214097 500292077101 2 9/19/2023 S-102A 223058 500292297201 2 9/19/2023 S-105A 219032 500292297701 10 9/19/2023 S-109 202245 500292313500 7 9/19/2023 S-110B 213198 500292303002 35 9/19/2023 S-113B 202143 500292309402 10 9/19/2023 S-115 202230 500292313000 4 9/19/2023 S-116A 213139 500292318301 4 9/19/2023 S-117 203012 500292313700 3 9/19/2023 S-118 203200 500292318800 9 9/19/2023 S-122 205081 500292326500 5 9/19/2023 S-125 207083 500292336100 2 9/19/2023 S-126 207097 500292336300 3 9/19/2023 S-134 209083 500292341300 35 9/19/2023 S-200A 217125 500292284601 7 9/19/2023 S-202 219120 500292364700 13 9/19/2023 S-210 219057 500292363000 10 9/19/2023 S-213A 204213 500292299301 4 9/19/2023 S-215 202154 500292310700 3 9/19/2023 S-216 200197 500292298900 4 9/19/2023 S-41A 210101 500292264501 3 9/19/2023 W-16A 203100 500292204501 2 9/23/2023 W-17A 205122 500292185601 3 9/23/2023 S-41A 210101 500292264501 3 9/19/2023 Well Name PTD # API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date W-19B 210065 500292200602 8 9/23/2023 W-21A 201111 500292192901 8 9/23/2023 W-32A 202209 500292197001 4 9/23/2023 W-201 201051 500292300700 44 9/23/2023 W-202 210133 500292343400 6 9/23/2023 W-204 206158 500292333300 3 9/23/2023 W-205 203116 500292316500 3 9/23/2023 W-207 203049 500292314500 3 9/23/2023 W-211 202075 500292308000 8 9/23/2023 W-213 207051 500292335400 3 9/23/2023 W-214 207142 500292337300 10 9/23/2023 W-215 203131 500292317200 2 9/23/2023 W-223 211006 500292344000 7 9/23/2023 Z-69 212076 500292347100 2.0 27 1.5 10/24/2023 S-128 210159 500292343600 11 12/27/2023 S-135 213202 500292350800 16 12/27/2023 V-113 202216 500292312500 24 12/31/2023 V-114A 203185 500292317801 5 12/31/2023 V-122 206147 500292332800 5 12/31/2023 V-205 206180 500292333800 2 12/31/2023 V-207 208066 500292339000 8 12/31/2023 V-214 205134 500292327500 5 12/31/2023 V-215 207041 500292335100 2 12/31/2023 V-218 207040 500292335000 5 12/31/2023 V-224 208154 500292340000 16 12/31/2023 V-225 209118 500292341900 6 12/31/2023 V-01 204090 500292321000 3 1/1/2024 V-02 204077 500292320900 5 1/1/2024 V-04 206134 500292332200 5 1/1/2024 V-102 202033 500292307000 8 1/1/2024 V-104 202142 500292310300 5 1/1/2024 V-220 208020 500292338300 4 1/1/2024 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Tuesday, October 17, 2023 SUBJECT:Mechanical Integrity Tests TO: FROM:Austin McLeod P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC S-41A PRUDHOE BAY UNIT S-41A Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 10/17/2023 S-41A 50-029-22645-01-00 210-101-0 W SPT 8804 2101010 2250 2124 2124 2124 2124 167 217 216 218 REQVAR P Austin McLeod 9/27/2023 Two year to MAIP (2250). AIO 3C.004. 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 S-41A Inspection Date: Tubing OA Packer Depth 54 2761 2671 2660IA 45 Min 60 Min Rel Insp Num: Insp Num:mitSAM230929110237 BBL Pumped:3.3 BBL Returned:3.3 Tuesday, October 17, 2023 Page 1 of 1            1 Guhl, Meredith D (CED) From:Wallace, Chris D (CED) Sent:Tuesday, October 19, 2021 9:13 AM To:AOGCC Records (CED sponsored) Subject:FW: Request to keep Injector S-41A (PTD #2101010) on Water Injection From: Wallace, Chris D (CED) <chris.wallace@alaska.gov> Sent: Wednesday, October 13, 2021 1:08 PM To: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Cc: Regg, James B (CED) <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Subject: Re: Request to keep Injector S‐41A (PTD #2101010) on Water Injection Andy, Water only injection is approved until the Admin Approval request can be processed. Any questions please get back to me. Regards Chris From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Wednesday, October 13, 2021, 12:55 PM To: Wallace, Chris D (CED) Cc: Regg, James B (CED); Oliver Sternicki; PB Wells Integrity Subject: Request to keep Injector S‐41A (PTD #2101010) on Water Injection Mr. Wallace, Injector S‐41A (PTD #2101010) is currently Under Evaluation for TxIA communication. A passing AOGCC witnessed MIT‐ IA was performed on 09/02/21 with the well on MI, but still exhibited TxIA communication when on MI. The well was swapped to PWI on 09/21/21. After additional monitoring, Hilcorp has submitted a request for Administrative Approval to continue Water Only Injection. Hilcorp requests your approval to keep the well on water only injection while the AA is processed. Please let me know if you have any questions or concerns. Andy Ogg Hilcorp Alaska LLC Field Well Integrity / Compliance andrew.ogg@hilcorp.com P: (907) 659‐5102 M: (307)399‐3816 From: Alaska NS ‐ PB ‐ Field Well Integrity Sent: Friday, September 17, 2021 7:36 AM To: Alaska NS ‐ PB ‐ Field Well Integrity <PBWellsIntegrity@hilcorp.com>; Wallace, Chris D (CED) <chris.wallace@alaska.gov> 2 Cc: Regg, James B (CED) <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UPDATE UNDER EVALUATION: Injector S‐41A (PTD #2101010) Slow TxIA while on MI Mr. Wallace, Injector S‐41A (PTD #2101010) was found to have slow TxIA communication while shut on MI on 08/06/21. An AOGCC MIT‐IA Passed on 09/02/21 confirming competent well barriers. TxIA communication was observed when the well was placed back on MI injection. The well will now be put on PWI UNDER EVALUATION for an additional 28 day monitoring period and AA application for continued injection on PWI only. 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: Alaska NS ‐ PB ‐ Field Well Integrity Sent: Friday, August 20, 2021 12:13 PM To: Wallace, Chris D (CED) <chris.wallace@alaska.gov> Cc: Regg, James B (CED) <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UNDER EVALUATION: Injector S‐41A (PTD #2101010) Slow TxIA while shut in Mr. Wallace, Injector S‐41A (PTD #2101010) MI injection was shut in on 08/06/21. The IA casing pressure was found to be 720 psi on 08/19/21 with a slow uptrend over the preceding 10 days. DHD bled the IAP with mixed gas / liquid returns to 200 psi and subsequent monitoring indicates a 1 psi / hour build up rate. The well is now classified as UNDER EVALUATION and on a 28 day clock to be resolved. Plan Forward: 1. Fullbore: AOGCC MIT‐IA x1.1 maximum anticipated injection pressure 2. Well Integrity: Apply for AA for continued WAG service. 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: Alaska NS ‐ PB ‐ Field Well Integrity <PBFieldWellIntegrity@hilcorp.com> Sent: Wednesday, July 7, 2021 5:51 AM To: Alaska NS ‐ PB ‐ EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS ‐ PB ‐ Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Foreman <GC2Foreman@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad HUQ <AlaskaNS‐PBW‐GC2‐ 3 WellpadHUQ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad LV <AlaskaNS‐PBW‐GC2‐WellpadLV@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad MN <AlaskaNS‐PBW‐GC2‐WellpadMN@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad RJ <AlaskaNS‐PBW‐GC2‐WellpadRJ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad S <AlaskaNS‐PBW‐GC2‐ WellpadS@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad W <AlaskaNS‐PBW‐GC2‐WellpadW@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad Z <AlaskaNS‐PBW‐GC2‐WellpadZ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC3 ‐ ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Alaska NS ‐ PB ‐ Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio ‐ (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: OPERABLE: Injector S‐41A (PTD #2101010) AA cancelled All, The AA cancellation has been processed and the well is now classified as OPERABLE. Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity / Compliance andrew.ogg@hilcorp.com P: (907) 659‐5102 M: (307)399‐3816 From: Alaska NS ‐ PB ‐ Field Well Integrity <PBFieldWellIntegrity@hilcorp.com> Sent: Monday, July 5, 2021 10:26 AM To: Alaska NS ‐ PB ‐ EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS ‐ PB ‐ Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Foreman <GC2Foreman@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad HUQ <AlaskaNS‐PBW‐GC2‐ WellpadHUQ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad LV <AlaskaNS‐PBW‐GC2‐WellpadLV@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad MN <AlaskaNS‐PBW‐GC2‐WellpadMN@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad RJ <AlaskaNS‐PBW‐GC2‐WellpadRJ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad S <AlaskaNS‐PBW‐GC2‐ WellpadS@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad W <AlaskaNS‐PBW‐GC2‐WellpadW@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad Z <AlaskaNS‐PBW‐GC2‐WellpadZ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC3 ‐ ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Alaska NS ‐ PB ‐ Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio ‐ (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UPDATE UNDER EVALUATION: Injector S‐41A (PTD #2101010) AA cancellation in progress All, Injector S‐41A (PTD #2101010) no longer exhibits TxIA communication on MI after the extended packing DGLV was set. The AOGCC has given approval to keep the well online while the AA for TxIA communication is cancelled. The Under Evaluation clock will be reset for tracking purposes until the cancellation is processed. 4 Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity / Compliance andrew.ogg@hilcorp.com P: (907) 659‐5102 M: (307)399‐3816 From: Alaska NS ‐ PB ‐ Field Well Integrity Sent: Saturday, March 27, 2021 6:00 AM To: Alaska NS ‐ PB ‐ Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Alaska NS ‐ PB ‐ EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS ‐ PB ‐ Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Foreman <GC2Foreman@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad HUQ <AlaskaNS‐PBW‐GC2‐WellpadHUQ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad LV <AlaskaNS‐PBW‐GC2‐WellpadLV@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad MN <AlaskaNS‐PBW‐GC2‐WellpadMN@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad RJ <AlaskaNS‐PBW‐GC2‐ WellpadRJ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad S <AlaskaNS‐PBW‐GC2‐WellpadS@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad W <AlaskaNS‐PBW‐GC2‐WellpadW@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad Z <AlaskaNS‐ PBW‐GC2‐WellpadZ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC3 ‐ ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio ‐ (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UPDATE UNDER EVALUATION: Injector S‐41A (PTD #) AOGCC approved trial period on MI All, Injector S‐41A (PTD # 210101) is currently not taking MI and is shut in. The well will remain Under Evaluation and the clock will be adjusted as needed when the well does return to injection to ensure there is a full 60 day trial period of MI. Please respond 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: Alaska NS ‐ PB ‐ Field Well Integrity <PBFieldWellIntegrity@hilcorp.com> Sent: Thursday, March 18, 2021 6:25 AM To: Alaska NS ‐ PB ‐ EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS ‐ PB ‐ Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Foreman <GC2Foreman@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad HUQ <AlaskaNS‐PBW‐GC2‐ WellpadHUQ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad LV <AlaskaNS‐PBW‐GC2‐WellpadLV@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad MN <AlaskaNS‐PBW‐GC2‐WellpadMN@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad RJ <AlaskaNS‐PBW‐GC2‐WellpadRJ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad S <AlaskaNS‐PBW‐GC2‐ WellpadS@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad W <AlaskaNS‐PBW‐GC2‐WellpadW@hilcorp.com>; Alaska NS ‐ PB W ‐ GC2 ‐ Wellpad Z <AlaskaNS‐PBW‐GC2‐WellpadZ@hilcorp.com>; Alaska NS ‐ PB W ‐ GC3 ‐ ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> 5 Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Alaska NS ‐ PB ‐ Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio ‐ (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UNDER EVALUATION: Injector S‐41A (PTD #) AOGCC approved trial period on MI All, Injector S‐41A (PTD # 210101) currently operates under AA AIO 3B.002 for PWI only due to slow TxIA when on MI. On 03/06/21 Slickline replaced the DGLV in sta #2 with an extended packing DGLV and loaded the IA with 9.8 ppg brine to remediate the TxIA when on MI. The AOGCC has granted a 60‐day trial period on MI to evaluate the repair. The well is now classified as UNDER EVALUATION and can be placed on MI. Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity / Compliance andrew.ogg@hilcorp.com P: (907) 659‐5102 M: (307)399‐3816 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. MEMORANDUM To: Jim Re gg � �� 4 P.I. Supervisor l I FROM: Austin McLeod Petroleum Inspector NON -CONFIDENTIAL State of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday, September 8, 2021 SUBJECT: Mechanical Integrity Tests Hilcorp North Slope, LLC S-41 A PRUDHOE BAY UNIT S41A Src: Inspector Reviewed By: P.I. Supry'-7 Comm Well Name PRUDHOE BAY UNIT S41A API Well Number 50-029-22645-01-00 Inspector Name' Austin McLeod Permit Number: 210-101-0 Inspection Date: 9/2/2021 Insp Num: mitSAM210902204712 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well S'41A ,Type Inj G. TVD 8804 Tubing l 3075. 3069 - 3061 - 3058 ' PTD z101010 Type Test ISPT Test psi 2201 - IA 450 2443 2374 - 2354 ' BBL Pumped. 2.5 - BBL Returned: 2.5 OA 88 109 107 103 IntervalOTHER P/IP P ✓ - Notes: Well was suspect of TxIA. Test done for a possible AA application Wednesday, September 8, 2021 Page 1 of 1 From:Wallace, Chris D (CED) To:AOGCC Records (CED sponsored) Subject:FW: UNDER EVALUATION: Injector S-41A (PTD #2101010) Slow TxIA while shut in Date:Wednesday, August 25, 2021 11:19:36 AM From: Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com> Sent: Friday, August 20, 2021 12:13 PM To: Wallace, Chris D (CED) <chris.wallace@alaska.gov> Cc: Regg, James B (CED) <jim.regg@alaska.gov>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UNDER EVALUATION: Injector S-41A (PTD #2101010) Slow TxIA while shut in Mr. Wallace, Injector S-41A (PTD #2101010) MI injection was shut in on 08/06/21. The IA casing pressure was found to be 720 psi on 08/19/21 with a slow uptrend over the preceding 10 days. DHD bled the IAP with mixed gas / liquid returns to 200 psi and subsequent monitoring indicates a 1 psi / hour build up rate. The well is now classified as UNDER EVALUATION and on a 28 day clock to be resolved. Plan Forward: 1. Fullbore: AOGCC MIT-IA x1.1 maximum anticipated injection pressure 2. Well Integrity: Apply for AA for continued WAG service. 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: Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com> Sent: Wednesday, July 7, 2021 5:51 AM To: Alaska NS - PB - EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS - PB - Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS - PB W - GC2 - Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS - PB W - GC2 - Foreman <GC2Foreman@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad HUQ <AlaskaNS-PBW-GC2-WellpadHUQ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad LV <AlaskaNS-PBW-GC2-WellpadLV@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad MN <AlaskaNS-PBW-GC2-WellpadMN@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad RJ <AlaskaNS-PBW-GC2-WellpadRJ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad S <AlaskaNS-PBW- GC2-WellpadS@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad W <AlaskaNS-PBW-GC2- WellpadW@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad Z <AlaskaNS-PBW-GC2- WellpadZ@hilcorp.com>; Alaska NS - PB W - GC3 - ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio - (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: OPERABLE: Injector S-41A (PTD #2101010) AA cancelled All, The AA cancellation has been processed and the well is now classified as OPERABLE. Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity / Compliance andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 From: Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com> Sent: Monday, July 5, 2021 10:26 AM To: Alaska NS - PB - EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS - PB - Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS - PB W - GC2 - Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS - PB W - GC2 - Foreman <GC2Foreman@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad HUQ <AlaskaNS-PBW-GC2-WellpadHUQ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad LV <AlaskaNS-PBW-GC2-WellpadLV@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad MN <AlaskaNS-PBW-GC2-WellpadMN@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad RJ <AlaskaNS-PBW-GC2-WellpadRJ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad S <AlaskaNS-PBW- GC2-WellpadS@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad W <AlaskaNS-PBW-GC2- WellpadW@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad Z <AlaskaNS-PBW-GC2- WellpadZ@hilcorp.com>; Alaska NS - PB W - GC3 - ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio - (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UPDATE UNDER EVALUATION: Injector S-41A (PTD #2101010) AA cancellation in progress All, Injector S-41A (PTD #2101010) no longer exhibits TxIA communication on MI after the extended packing DGLV was set. The AOGCC has given approval to keep the well online while the AA for TxIA communication is cancelled. The Under Evaluation clock will be reset for tracking purposes until the cancellation is processed. Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity / Compliance andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 From: Alaska NS - PB - Field Well Integrity Sent: Saturday, March 27, 2021 6:00 AM To: Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Alaska NS - PB - EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS - PB - Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS - PB W - GC2 - Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS - PB W - GC2 - Foreman <GC2Foreman@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad HUQ <AlaskaNS-PBW-GC2-WellpadHUQ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad LV <AlaskaNS-PBW-GC2-WellpadLV@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad MN <AlaskaNS- PBW-GC2-WellpadMN@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad RJ <AlaskaNS-PBW-GC2- WellpadRJ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad S <AlaskaNS-PBW-GC2- WellpadS@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad W <AlaskaNS-PBW-GC2- WellpadW@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad Z <AlaskaNS-PBW-GC2- WellpadZ@hilcorp.com>; Alaska NS - PB W - GC3 - ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio - (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UPDATE UNDER EVALUATION: Injector S-41A (PTD #) AOGCC approved trial period on MI All, Injector S-41A (PTD # 210101) is currently not taking MI and is shut in. The well will remain Under Evaluation and the clock will be adjusted as needed when the well does return to injection to ensure there is a full 60 day trial period of MI. Please respond 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: Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com> Sent: Thursday, March 18, 2021 6:25 AM To: Alaska NS - PB - EOC Specialists <EOCSpecialists@hilcorp.com>; Alaska NS - PB - Wells Optimization Engineers <WellsOE@hilcorp.com>; Alaska NS - PB W - GC2 - Field Lead Operator <GC2FieldLO@hilcorp.com>; Alaska NS - PB W - GC2 - Foreman <GC2Foreman@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad HUQ <AlaskaNS-PBW-GC2-WellpadHUQ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad LV <AlaskaNS-PBW-GC2-WellpadLV@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad MN <AlaskaNS-PBW-GC2-WellpadMN@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad RJ <AlaskaNS-PBW-GC2-WellpadRJ@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad S <AlaskaNS-PBW- GC2-WellpadS@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad W <AlaskaNS-PBW-GC2- WellpadW@hilcorp.com>; Alaska NS - PB W - GC2 - Wellpad Z <AlaskaNS-PBW-GC2- WellpadZ@hilcorp.com>; Alaska NS - PB W - GC3 - ProdContCentLeads <GC3ProdContCenterLeads@hilcorp.com>; Brian Glasheen <Brian.Glasheen@hilcorp.com>; Brodie Wages <David.Wages@hilcorp.com> Cc: Abbie Barker <Abbie.Barker@hilcorp.com>; Alaska IMS User <akimsuser@hilcorp.com>; Alaska NS - PB - Field Well Integrity <PBFieldWellIntegrity@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com>; Carrie Janowski <Carrie.Janowski@hilcorp.com>; John Condio - (C) <John.Condio@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com>; Stan Golis <sgolis@hilcorp.com> Subject: UNDER EVALUATION: Injector S-41A (PTD #) AOGCC approved trial period on MI All, Injector S-41A (PTD # 210101) currently operates under AA AIO 3B.002 for PWI only due to slow TxIA when on MI. On 03/06/21 Slickline replaced the DGLV in sta #2 with an extended packing DGLV and loaded the IA with 9.8 ppg brine to remediate the TxIA when on MI. The AOGCC has granted a 60- day trial period on MI to evaluate the repair. The well is now classified as UNDER EVALUATION and can be placed on MI. Please respond with any questions. Andy Ogg Hilcorp Alaska LLC Field Well Integrity / Compliance andrew.ogg@hilcorp.com P: (907) 659-5102 M: (307)399-3816 Wallace, Chris D (CED) From: Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Sent: Friday, July 2, 2021 2:36 PM To: Wallace, Chris D (CED) Cc: Alaska NS - PB - Field Well Integrity Subject: S -41A (PTD# 210101) AIO 313.002 cancelation Chris, Per our conversation we are good to keep S -41A on MI while the cancelation of A10 313.002 is processed by the AOGCC. Regards, Oliver Sternicki Hilcorp North Slope LLC Well Integrity Engineer Office: (907) 564 4891 Cell: (907) 350 0759 Oliver.Sternici<il@hilcora.com The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. 1 Wallace, Chris D (CED) From: Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Sent: Monday, April 19, 2021 1:09 PM To: Wallace, Chris D (CED) Cc: Rixse, Melvin G (CED) Subject: RE: [EXTERNAL] RE: S -41A (PTD# 210-101) Request to POI Under Evaluation on MI Chris, Wanted to give you an update on the S-41 Under Evaluation period. Prior to putting the well on MI for the trial we did a Schmoo-B-Gone job on 3/16/21 to clean things up. When we attempted to place the well on MI we were unable to establish injectivity into the main bore of S -41A. The latest plan is to open the sliding sleeve at 11842' and inject into the S-41AL1 for the 60 day trial. We will provide you with an update after 30 days. Let me know if you have any questions. Oliver Sternicki Hilcorp North Slope LLC Well Integrity Engineer Office: (907) 564 4891 Cell: (907) 350 0759 Oliver.Sternicki@hilcorp.com From: Wallace, Chris D (CED) <chris.waIlace @alaska.gov> Sent: Monday, March 8, 202111:37 AM To: Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Cc: Rixse, Melvin G (CED) <melvin.rixse@alaska.gov> Subject: [EXTERNAL] RE: S -41A (PTD# 210-101) Request to POI Under Evaluation on MI Oliver, Your request for up to 60 days MI for monitoring is approved. Please send an update at 30 days. My thoughts are we will evaluate any pressure variances in the 60 days and see if the AA is warranted as -is for water only, modified to include MI, or if it can be cancelled and stay with MI. An analysis of Hilcorp's workovers and pressure responses will go a long way in determining the AA relevance i.e. if historically we thought the pressure communication was somewhere other than the packing, we fix the packing and load the IA and the leak is minimized, did we actually fix the well or just mask the leak? 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. Wallace, Chris D (CED) From: Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Sent: Monday, March 8, 2021 10:36 AM To: Wallace, Chris D (CED) Cc: Rixse, Melvin G (CED) Subject: S -41A (PTD# 210-101) Request to POI Under Evaluation on MI Chris, S -41A (PTD# 210-101) is a produced water injector that operates under AIO 36.002 due to slow TxIA communication when on Ml. We have recently completed work on the well to load the IA with 9.8 ppg brine and swap out the #2 DGLV with a revised packing stack in an attempt to fix the TxIA communication on MI and potentially convert the well back to a WAG injector depending on diagnostics. Relevant well history: 11/15/2015: LDL finds leak at station #2 11/17/2015: Set extended packing DGLV in Station #2 11/18/2015: MIT -IA passed to 4000 psi 8/2/2016: AA for TxIA comm while on MI, Authorized for PWI only. IA repress rate on M1= —60 psi/day 11/3/2019: AOGCC witnessed MIT -IA passed to 3232 psi 2/14/2021: PPPOT-T w/ N2 passed to 1800 psi 3/6/2021: Load IA with 210 BBLs 9.8 ppg NaCl. Set extended packing Freudenberg DGLV in station #2. MIT -IA passed to 2450 psi. Hilcorp requests permission to place S -41A on MI injection for up to 60 days to evaluate the effectiveness of recent well work to repair the TxIA communication on MI. Let me know if you have any questions. Oliver Sternicki Hilcorp North Slope LLC Well Integrity Engineer Office: (907) 564 4891 Cell: (907) 350 0759 Oliver.Sternicki@hilcorp.com The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. MEMORANDUM TO: Jim Regg P.I. Supervisor (�I 1�(1g� I FROM: Lou Laubenstein Petroleum Inspector NON -CONFIDENTIAL State of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday, November 13, 2019 SUBJECT: Mechanical Integrity Tests BP Exploration (Alaska) Inc. S -41A PRUDHOE BAY UNIT S-41 A Ste: Inspector Reviewed By: P.I. Supry 139'P— Comm Well Name PRUDHOE BAY UNIT S -41A API Well Number 50-029-22645-01-00 Inspector Name: Lou Laubenstein Permit Number: 210-101-0 Inspection Date: 11/3/2019 ' Insp Num: mitLOL191103125055 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well S -41A Type Inj w TVD 8804 Tubing 2417 2417 2417 - 2417 PTD 2101010 'Type Test SPT Test psi 2600 IA 366 3295 3237 3232 BBL Pumped: 5.3 BBL Returned: 5.8 - OA 615 83B 831 824 - Interval REQVAR P/F P Notes: MIT -[A to maximum anticipated injection pressure per AA 3B.002 Wednesday, November 13, 2019 Page 1 of I • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday,December 06,2017 TO: Jim Regg CR (.61‘611-7 P.I.Supervisor f SUBJECT: Mechanical Integrity Tests BP EXPLORATION(ALASKA)INC. S-4I A FROM: Adam Earl PRUDHOE BAY UNIT S-41A Petroleum Inspector Src: Inspector Reviewed By:2� P.I.Supry JIJt� NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT S-41A API Well Number 50-029-22645-01-00 Inspector Name: Adam Earl Permit Number: 210-101-0 Inspection Date: 11/29/2017 Insp Num: mitAGE171129135849 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well S-41A Type Inj W -TVD 8804 Tubing 2725 - 2725 ' 2725 2724 - PTD 2101010 " Type Test SPT Test psi 2201 - IA 276 3199 3154 3146 BBL Pumped: 6.7 - BBL Returned: 52 OA 104 381 - 371 366 Interval REQVAR P/F P Notes: MIT/IA Tested as per AIO 3B.002 ✓ SCANNED :' (i 82 Wednesday,December 06,2017 Page 1 of 1 • • Wallace, Chris D (DOA) From: AK, GWO SUPT Well Integrity <AKDCWellIntegrityCoordinator@bp.com> Sent: Sunday, August 07, 2016 11:28 AM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M IL;AK, OPS GC2 Wellpad Lead;AK, OPS Prod Controllers;AK, OPS PCC Ops Lead;Cismoski, Doug A; Daniel, Ryan;AK, RES GPB West Wells Opt Engr;AK, RES GPB East Wells Opt Engr;AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@alaska.gov' Cc: AK, GWO DHD Well Integrity;AK, GWO Projects Well Integrity;Grey, Leighton;AK, GWO SUPT Well Integrity;AK, OPS FF Well Ops Comp Rep; Regg,James B (DOA); Hibbert, Michael;Janowski, Carrie; Montgomery,Travis J; Munk, Corey; Obrigewitch, Beau; Pettus,Whitney; Sternicki, Oliver R;Tempel,Troy;Worthington,Aras J Subject: OPERABLE:Injector S-41A(PTD#2101010)Administrative Approval AIO 36.002 for Water Only Attachments: S-41A aio3B.002 08-02-16.pdf All, Injector S-41A(PTD#2101010)was classified as Not Operable on 03/24/16, due to TxIA communication while on miscible injection (MI).On 08/02/16,the AOGCC granted Administrative Approval,AIO 3B.002,allowing water infection only,subject to conditions specified in the attached AA. The well is reclassified as Operable,and may be brought online in water only injection service as required. Please be aware of the fluid-packed annuli. Thanks, Adrienne McVey Well Integrity Superintendent—GWO Alaska (Alternate:Jack Lau) 0:(907)659-5102 �E� JAN 1 O�Z C:(907)943-0296 H:2376 Email: AKDCWelllntesritvCoordinator@BP.com From: AK D&C Well Integrity Coordinator Sent: Thursday, ' ; ch 24, 2016 8:42 PM To: AK, OPS GC2 OS , • . OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS PCC Ops Lead; Cismoski, Doug A, .••niel, Ryan; AK, GWO SUPT Slickline; AK, GWO SUPT Special Projects; AK, RES GPB West Wells Opt Engr; AK, RES GPB Eas -IIs Opt Engr; AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@alaska.gov' Cc: AK, GWO SUPT Well Integrity; AK, ! ID HD Well Integrity; AK, GWO Projects Well Integrity; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Sayers, Jessica; ' an, Eric; Glasheen, Brian P; Munk, Corey; Odom, Kristine; Regg, James B (DOA) (jim.regg@alaska.gov) Subject: NOT OPERABLE: Injector S-41A(PTD #2101010) Inner • -• lus Repressurization All, Injector S-41A(PTD#2101010) is on miscible injection(MI)and continues to exhibit signs of tubing . 'nner annulus(IA) communication. The well is reclassified as Not Operable to evaluate pursuing an Administrative Approva ° for tubing x inner annulus communication. The well will be added to the Quarterly AOGCC Not Operable Injectors report. 1. • • Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Thursday, March 24, 2016 8:42 PM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL;AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS PCC Ops Lead; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent;AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@alaska.gov' 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; Sternicki, Oliver R; Sayers, Jessica; Dickerman, Eric; Glasheen, Brian P; Munk, Corey; Odom, Kristine; Regg, James B (DOA) Subject: NOT OPERABLE:Injector S-41A (PTD #2101010) Inner Annulus Repressurization Attachments: Injector S-41A (PTD #2101010) TIO Plot.docx All, Injector S-41A (PTD#2101010) is on miscible injection (MI) and continues to exhibit signs of tubing by inner annulus (IA) communication. The well is reclassified as Not Operable to evaluate pursuing an Administrative Approval (AA) for tubing x inner annulus communication. The well will be added to the Quarterly AOGCC Not Operable Injectors report. A copy of the TIO pot is included for reference. Please call with any questions or concerns. Thank you, Kevin Parks (Alternate: Whitney Pettus' BP Alaska-Well Integrity Coordinator SCANNED JUN 2 8 2016 GANGlobal Wells Organization Office: 907.659.5102 WIC Email:AKDCWellIntegrityCoordinator@bp.com From: AK, D&C Well Integrity Coordinator Sent: Thursday, March 03, 2016 9:40 AM To: AK, OPS G QSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS PCC Ops Lead; Cismoski, D u A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK-,..RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@a aska.gov' 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; Sternicki, Oliveettus, Whitney; Sayers, Jessica; Dickerman, Eric; Glasheen, Brian P; 'Regg, James B (DOA)'; Munk, Corey; Odom, Kristine Subject: OPERABLE: Injector S-41A (PTD #2101010) Stabiliz nner Annulus Pressure All, Injector S-41A (PTD#2101010) inner annulus (IA) pressure was bled from 990 psi down to 50 psi and then increased to 300 psi with gas pressure on February 28, 2016.The IA pressure increased to 740 psi on Febrii , 2016 after a two 1 \� • ! +� Injector S-41A(PTD#2101010)TIO Plot Melt —11,1111 • 111 0.1i mac.auS'%Or'A%Oyp:nl @T.1%C94%COQ'{timY%c.xt+%Cvu%Fla L%.'r%T»4[G,Tt W3nN PnA N.,K 4i'R^t COO.690ax WWI OWN al.ONS'%ovum MiN Olt4%AAx WCtra1 • • Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWelllntegrityCoordinator@bp.com> Sent: Thursday, March 03, 2016 9:40 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL;AK, OPS GC2 Wellpad Lead;AK, OPS Prod Controllers;AK, OPS PCC Ops Lead; Cismoski, Doug A; Daniel, Ryan;AK, D&C Wireline Operations Superintendent;AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@alaska.gov' 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; Sternicki, Oliver R; Pettus, Whitney; Sayers,Jessica; Dickerman, Eric; Glasheen, Brian P; Regg, James B (DOA); Munk, Corey; Odom, Kristine Subject: OPERABLE:Injector S-41A (PTD#2101010) Stabilized Inner Annulus Pressure Attachments: Injector S-41A (PTD 2101010) TIO and Injection Plot.docx All, Injector S-41A(PTD#2101010) inner annulus (IA) pressure was bled from 990 psi down to 50 psi and then increased to 300 psi with gas pressure on February 28, 2016.The IA pressure increased to 740 psi on February 29, 2016 after a two degree temperature increase but appears to have stabilized at this pressure over the last three days.The well has been returned to Operable status however will remain on the Well Integrity monitor list for a period of up to 30 days to confirm pressure stabilization. If the IA shows any signs of anomalous pressure,the well will be reclassified as Not Operable to evaluate pursuing an AA for TxIA communication. An updated TIO and injection plot has been included for reference. Please call with any questions or concerns. Thank you, Whitney Pettus (Alternate:Kevin Parks) BPPAllasska-Well Integrity Coordinator G WIC Office: 907.659.5102 WIC Email: AKDCWeIllntegrityCoordinator@BP.com From: AK'D&C Well Integrity Coordinator Sent: Thursday, February 04, 2016.10:31 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS PCC Ops Lead; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK;RES GPB East Wells Opt Engr; AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@alaska.gov' 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; Sternicki, Oliver R; Pettus, Whitney; Morrison, Spencer; Sayers, Jessica; Dickerman, Eric; Glasheen, Brian P; 'Regg, James B (DOA) (jim.regg@alaska.gov)' 1 • 0 Injector S-41A(PTD 2101010) TIO Plot March 03, 2016 _I -e-n•__a "AM 1217. 112.1.5 MO,. 01741 Calld 03/11/16 mini maim Injection Plot I Intt 11,00 II:: \_}N-...---n ae; '''' .o-01 AM Mt ---- ----- L I\-- 20% \\I r u umx :MI6 1..Ms 11.11.15 mmnc m.-w+o owvx max noun mew sawn onex owrx • Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Thursday, February 04, 2016 10:31 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS PCC Ops Lead; Cismoski, Doug A; Daniel, Ryan;AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr;AK, RES GPB East Wells Opt Engr;AK, OPS WELL PAD S; Bergene, Matthew;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; Sternicki, Oliver R; Pettus, Whitney; Morrison, Spencer; Sayers, Jessica; Dickerman, Eric; Glasheen, Brian P; Regg,James B (DOA) Subject: UPDATE February 04, 2016: UNDER EVALUATION:Injector S-41A (PTD #2101010) Slow Tubing by Inner Annulus Communication Attachments: Injector S-41A (PTD 2101010) TIO and Injection Plot.docx external-email: 0 All, Injector S-41A (PTD#2101010) is on miscible injection (MI) and continues to exhibit signs of tubing by inner annulus (IA) communication. On January 23, 2016 the IA was bled from 850 psi down to 0 psi.The IA pressure stayed under 100 psi for two days before slowly beginning to climb. BP has been granted permission by the AOGCC for the well to remain online and Under Evaluation for another 28 period to evaluate if IA pressure will stabilize. If a stabilization point is reached below 1000 psi, BP will evaluate pursuing an AA for TxIA communication for both water and gas injection. However, if the IA fails to maintain an equilibrium pressure below 1000 psi, BP will evaluate pursuing an AA for TxIA commutation for water service only. An updated TIO and injection plot has been included for reference. Please call with any questions or concerns. Thank you, Whitney Pettus SCANNED MAY 1 9 2016 (A1t0T1r11t': Kc°rin P(1111s) BP Alaska-Well Integrity Coordinator GWOobal4', rgarittat WIC Office: 907.659.5102 WIC Email: AKDCWellIntegrityCoordinator@BP.com From: AK, D&C Well Integrity rd.pator Sent: Friday, January 08, 2016 8:38 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field 0&M TL; GC2 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS PCC Ops Lead; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Ope Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES G B`f Wells Opt Engr; AK, OPS WELL PAD S; Bergene, Matthew 1 • Injector S-41A(PTD 2101010) TIO Plot February 04, 2016 \--- -- „a.. ,,.1S 11,4.1! .% 1311.1.4. ,m.,_ •,.u„ m., MOMC.X, o,,,. 1,1,11 Injection Plot 1.a 1 : t;o, WELL LOG TRANSMITTAL DATA LOGGED PROACTIVE DIAGNOSTIC SERVICES, INC. T /5/2010 M.K.BENDER To: AOGCC Makana Bender 333 W. 7th Ave Suite 100 Anchorage, Alaska 99501 (907) 793-1225 RE : Cased Hole/Open Hole/Mechanical Logs and /or Tubing Inspection(Caliper/MTT) The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of: BP Exploration (Alaska), Inc. Petrotechnical Data Center Attn: Analisa Steger LR2—1 900 Benson Blvd. Anchorage, AK 99508 QancpdcObp.corn iCANIMEO and ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West International Airport Road Suite C Anchorage, AK 99518 Fax: (907) 245-8952 1) LeakPointTM Survey 14-Nov-15 S-41A BL/CD 50-029-22645-01 2) Signed : /7) ,A1,2-ad-e4c.,12) — Date : Print Name: PROACTIVE DIAGNOSTIC SERVICES, INC., 130 W.INTERNATIONAL AIRPORT RD SUITE C, ANCHORAGE, AK 99518 PHONE: (907)245-8951 FAX: (907)245-8952 E-MAIL: PDSANCHORAGE@MEMORYLOG.COM WEBSITE:WWW.MEMORYLOG.COM D:\Achives\MasterTemplateFiles\Templates\Distribution\TransmittalSheets\BP_Transmit.docx Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWeIllntegrityCoordinator@bp.com> Sent: Thursday, March 03, 2016 9:40 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M IL; AK, OPS GC2 Wellpad Lead;AK, OPS Prod Controllers;AK, OPS PCC Ops Lead; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent;AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr;AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@alaska.gov' 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; Sternicki, Oliver R; Pettus, Whitney; Sayers, Jessica; Dickerman, Eric; Glasheen, Brian P; Regg,James B (DOA); Munk, Corey; Odom, Kristine Subject: OPERABLE:Injector S-41A (PTD#2101010) Stabilized Inner Annulus Pressure Attachments: Injector S-41A (PTD 2101010) TIO and Injection Plot.docx All, Injector S-41A(PTD#2101010) inner annulus (IA) pressure was bled from 990 psi down to 50 psi and then increased to 300 psi with gas pressure on February 28, 2016.The IA pressure increased to 740 psi on February 29, 2016 after a two degree temperature increase but appears to have stabilized at this pressure over the last three days.The well has been returned to Operable status however will remain on the Well Integrity monitor list for a period of up to 30 days to confirm pressure stabilization. If the IA shows any signs of anomalous pressure,the well will be reclassified as Not Operable to evaluate pursuing an AA for TxIA communication. An updated TIO and injection plot has been included for reference. Please call with any questions or concerns. Thank you, SCANNED MAR 1 5 2016 Whitney Pettus (Alternate:Kevin Parks) BP Alaska-Well Integrity Coordinator GW WIC Office: 907.659.5102 WIC Email: AKDCWeIllntegrityCoordinator@BP.com FSO t AK, D&C Well Integrity Coordinator Sent: Thursday, February 04, 2016 10:31 AM To: AK, OPS GC2 OSR1; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; AK, OPS PCC Ops Lead; Cismoski, Doug-AT Daniel, Ryan; AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS WELL PAD S; Bergene, Matthew; 'chris.wallace@alaska.gov' 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; Sternicki, Oliver R; Pettus, Whitney; Mo rl�ison, Spencer; Sayers, Jessica; Dickerman, Eric; Glasheen, Brian P; 'Regg, James B (DOA) (jim.regg@alaska.gov)' o • Injector S-41A(PTD 2101010) TIO Plot March 03, 2016 am ri —4,—ti —..—M —6 WY ....Pn Z.`.,� ��- V.I.. a. • ,. ,�an „.3,.e WPM „�. �a,,. e.Y, vtt„ @„Vi. 4 m 3a Injection Plot an :b... , ibL lM _,:r rOft •••...a -:eeo Mt Me r-- r . .,de Wallace, Chris D (DOA) From: Wallace, Chris D (DOA) Sent: Saturday, August 29, 2015 7:27 AM To: AK, D&C Well Integrity Coordinator Subject: RE:Injector S-41A(PTD#2101010)Approval to inject miscible injection for diagnostic evaluation Attachments: image001.png Kevin, Appoved for restart and 28 days diagnostics and monitoring as per plan below. If scheduling takes us out past 28 days we will need to revisit. Thanks Chris SCANNED SEP 0 3 2015, Original message From: "AK, D&C Well Integrity Coordinator" <AKDCWellIntegrityCoordinator@,bp.com> Date: 08/28/2015 6:11 PM (GMT-09:00) To: "Wallace, Chris D (DOA)" <chris.wallace@alaska.gov> Cc: "AK, D&C Well Integrity Coordinator" <AKDCWellIntegrityCoordinator@bp.com> Subject: Injector S-41A (PTD #2101010) Approval to inject miscible injection for diagnostic evaluation Chris, As per our phone conversation, WAG Injector S-41A (PTD #2101010) was reclassified as Not Operable and shut in on February 26, 2015 due to inner annulus repressurization on miscible injection. BP would like to put S-41A on miscible injection for up to 28 days to evaluate the inner annulus repressurization. The plan would be to put well on MI injection let well get stable then do a Archer leak detection log(LDL). If leak is evident of a gas lift valve we will change out the gas lift valve and perform an MIT-IA. If no leaks are found we will set a tubing tail plug and pressure up the tubing with MI and run the LDL again. If no leaks are found we would pursue an Administrative Approval for produced water. If permission is granted for further diagnostic work, the inner annulus pressure will not be actively managed with the exception of compensating for annular fluid expansion while the well is reaching thermally stable state. The inner annulus will not be allowed to exceed 2000 psi, and the outer annulus will not be allowed to exceed 1000 psi. If either of these pressures are reached during the evaluation period after the well is thermally stable the well will be shut in. A copy of the wellbore schematic is included for reference. Thank you, 1 Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Thursday, February 26, 2015 7:28 PM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL;AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead;AK, D&C Well Services Operations Team Lead;AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS WELL PAD 5;Wallace, Chris D (DOA); Glasheen, Brian P; Regg, James B (DOA); Munk, Corey Cc: AK, D&C Well Integrity Coordinator;AK, D&C DHD Well Integrity Engineer;AK, D&C Projects Well Integrity Engineer; Sternicki, Oliver R;AK, OPS FF Well Ops Comp Rep Subject: NOT OPERABLE:Injector S-41A (PTD#2101010) Exhibiting TxIA communication Attachments: image001jpg All, WAG Injector S-41A(PTD#2101010) has demonstrated slow tubing by inner annulus communication while on miscible injection (MI).As subsequent diagnostics have indicated competent barriers, the well will be reviewed for an AA request.At this time the well has been reclassified as Not Operable, and added to the Quarterly AOGCC Not Operable Injectors report. Please call with any questions, Laurie Climer (Alternate:: lit vin Park,) SCANNED i j y h 0 { BP Alaska-Well Integrity Coordinator Glx) G!o aI Wel Is Y V Organizaton WIC Office: 907.659.5102 WIC Email: AKDCWeIlIntegrityCoordinator@BP.com From: AK, D&C Well Integrity Coordinator Sent: Thursday, January 22, 2015 9:54 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M IL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS WELL PAD S; Oshiro, Joleen; 'chris.wallace@alaska.gov'; 'Regg, James B (DOA) (iim.reciq@alaska.gov)'; Shrider, James 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; Sternicki, Oliver R Subject: UNDER EVALUATION: Injector S-41A (PTD #2101010) Exhibiting signs of TxIA communication All, WAG Injector S-41A(PTD#2101010) has begun exhibiting anomalous inner annulus pressure trends while online.A passing PPPOT-T was performed on Jan 15, 2015, indicating competent wellhead seals. Per a discussion with the AOGCC, the well has been reclassified as Under Evaluation for additional diagnostics. Plan Forward: 1. DHD: Perform MIT-IA 2. WIE: Additional diagnostics as needed A copy of the wellbore schematic,TIO, and injection plots have been included for reference. Please call with any questions. Thank you, Laurie Climer (Alternate:Jack Disbrow) BP Alaska-Well Integrity Coordinator GWG'a:laI Weis Organ zat:on WIC Office: 907.659.5102 WIC Email: AKDCWeIIIntegrityCoordinator(a)BP.com 2 Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Thursday,January 22, 2015 9:54 PM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL;AK, OPS GC2 Wellpad Lead;AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan;AK, D&C Wireline Operations Team Lead;AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr;AK, OPS WELL PAD S; Oshiro,Joleen;Wallace, Chris D (DOA); Regg,James B (DOA); Shrider,James 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; Sternicki, Oliver R Subject: UNDER EVALUATION:Injector S-41A (PTD#2101010) Exhibiting signs of TxIA communication Attachments: image001 jpg; S-41A TIO and Injection Plots 1-22-15.docx; S-41A Wellbore Schematic.pdf SCANNED J.AN '2 6 All, WAG Injector S-41A(PTD#2101010) has begun exhibiting anomalous inner annulus pressure trends while online.A passing PPPOT-T was performed on Jan 15, 2015, indicating competent wellhead seals. Per a discussion with the AOGCC, the well has been reclassified as Under Evaluation for additional diagnostics. Plan Forward: 1. DHD: Perform MIT-IA 2. WIE: Additional diagnostics as needed A copy of the wellbore schematic,TIO, and injection plots have been included for reference. Please call with any questions. Thank you, Laurie Climer (Alternate:Jack Disbrow) BP Alaska-Well Integrity Coordinator GVVG!oba I Weiss Orgarnzat:an WIC Office: 907.659.5102 WIC Email: AKDCWeIIIntegrityCoordinator@BP.com 1. • Injector S-41A(PTD#2101010) 151541 S-61 3ccc - 5511 2000 -0-13303 OOA 00 1000 1000 1I00A4 1110534 1•.1514 112214 112014 ',Dila 121i1. 4 1223-,a 01026 oIDOls OL 415 Injection Plot 2100 — -5500 1130 -5� 2100 -6530 2333. -5�a sco 1600 5503 1.500 - 300 1430 5 N _yip -RSV 000 d3 11]04 .000.. 11[0 .s,a a ,.aro .3.033 �ar Sao � 1503 ^aa r 100 nano 650 sa 500 -2300 a0 -1 sao m ,ao ,315u 110114 11054 111514 1,.14 111534 120514 12'114 ,11034 1211,34 010015 011015 - - TREE= 41,16'CM1S—41 A yyg,L�p= FMC SAFEi`. ,'ES: WCL ANGLE>70°@ 12069""4112" ACTUATOR= BAKER CA CHRROM E TBG 8 LM "' OKB.ELEV= 71.2 1 BF.ES/= -- 37' KOP= 1131' Max Angle= 98°@ 14863' Datum MD= 11843' ' , 2227' 41!7 GAS FES XLFT NPM,DANDRELS =3.813' Datum ND= 8800'SS 9-5/8'CSG,40#,L-80 BUTT,D=8.835' H 3332' ST MD I VI 1 DEV TYPE VLV LTCH PORT DATE 5 3742 3331 48 KBG-2 DMY BK ' 0 03/03/14 4 7112 5568 47 KBG-2 DMY BK r 0 03/03/14 7"CSG,26#,L-80 BTC,.0383 bpf,D=6.276' —I 11371' f ' Z Er Z 3 9705 7345 47 KBG-2 DMY BK r 0 03/03/14 2 11639 8777 65 KBG-2 DMY BK r 0 03/03/14 1 11808 8849 64 KBG-2 'DMY BK r 0 06/13/11 I Minimum ID = 3.726" @ 11916' lir ' STA#1 IS BELOW PKR,UNABLE TO USE FOR GL 4-1/2" HES XN NIPPLE 11673' —{4-1/2FES XNIP,D=3.813" x I 11702' ---I r x 4-1/2"FES TNT PKK,I)=3.856' ' r 11778' H4-1/7 FES X NP,D=3.813" WI 11842' H4-1/2"I-ES XD DURO SLD SLV,D=3.813" II • 11916' H 4-1/2"FES XN NP,D=3.725" MILLOUT WINDOW(S-41L1)11892'-11905' w•4►�•1P ►•••A 4. FALLOUT WINDOW(S-41AL1) 11926'- 11939' SQUEEZED OFF 09/22/10 / 11947' —i MECHANICAL CUT SLOTTED LINER S-41AL1 4-1/7 SLID LNR 12.6#,L-80 BT-M 13701' RA PP TAG -I 11782' 1--1. 0152 bpf,D=3.958' OFR'1 HOLE 15257' 4-1/7 TBG,12.6#,13CR 85 VAM TOP, —I 11951' 11951' H 4-117 BKR TEBACK ASSY,D=4.30" .0152 bpf,D=3.958" 11954' HrDD x 5"Fi •E ZXPN LTP w/PER,ID=420" TOP OF 41/2"LNR —I 11954' —'H 11976' —7"X 5"BKR FLEX LOCK LNR MGR,D=4.220" 7"CSG,29#,L-80 BTC-M,.0371 bpf,ID=6.184" - —12017 11986' —15"X 41/2"XO,D=3.920" PERFORATION SUMMARY RE=LOG:SI_B MWIYGR ON 09/21/10 FALLOUT WfwDOW(S-41A) 12003'-12017' A NGLE A T TOP FERF•:94°0?7 Note:Refer to Roduction DB for historical pert data SIZE SPF , INTERVAL Opn/Sqz DATE ` 111111.0%. 13350' H41/2"RA TAG S-41A 2-7/8' 6 12700-13100 0 10/09/10 ` 2-7/8' 6 13200-13600 O 10/09/10 •• i i alliftior •••••• ••• 2-7/8' 6 13700- 14100 O 10/09/10 '1!"• . allisiftir 2-7/8' 6 14200-14350 O 10/09/10 ��i;•;•;1 � 2-7/8' 6 14940-15150 0 10/09/10 ••�•�• 0 S-41 A L 1 •••• PBTD —1 15326' ....0 4-1/2' SLTD 11947-11992 SLOT 10/16/10 4-1/7 SLID 12301-13656 SLOT 10/16/10 4-1/2"LNR,12.6#,13CR-85 VAMTOP,.0152bpf,D=3.958" —I 15413' DATE REV BY COM ENTS DATE REV BY COM ENTS PRIIDHOE BAY UM' 04/02/96 MBE ORIGINAL COMPLETION 06/15/11 MW PJC FNAL DRLG CORRECTIONS WELL: S-41A/AL1 10/23/10 N76 SIDETRACK(S-41A/AL1) 06/15/11 ALW PJC GLV C/O(6/13/11) PERMIT No: 2101010(20) 04/29/11 KLS/PJC SET SRC(03/31/11) 06/16/11 ALW PJC PILL PX RUG(06/13/11) AR No: 50-029-22645-01(61) 04/29/11 ALW PJC SET PXN(04/22/11) 03/11/14 RKT/JMD GLV C/O(03/03/14) SEC 35,T12N,R12E,1128'FNL&775'FWL 04/29/11 JLJ!PJC SET SPMG(04/23/11) 05/04/11 PJC DRLG DRAFT CORRECTIONS BP Exploration(Alaska) Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. cQ I 0 - 1 0 1 Well History File Identifier Organizing(done) ❑ Two-sided 1 111111111 IIII ❑ Rescan Needed 1 111111111 I IIU RES DIGITAL DATA OVERSIZED (Scannable) olo Items: ❑ Diskettes, No. ❑ Maps: vr e scale Items: her, No/Type: CP NQ. ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non-Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Date: galt.iliq /s/ WI f) Project Proofing 1 pH BY: aria Date: al ` /s/ rnr Scanning Preparation 3 x 30 = 9 o + 23 = TOTAL PAGES 1 1 3 (Count does not include cover sheet) BY: Date: /s/ Al Production Scanning 1 1111111111111111 Stage 1 Page Count from Scanned File: 1 1 1+ (Count does include cover eet) Page Count Matches Number in Scanning Preparation: YES NO 9 9 p BY: AVM Date: a I t,`. (I 4. lsl 64 Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO 1 BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. 1 ReScanned 11 1111111111111111 BY: Maria Date: /s/ Comments about this file: Quality Checked 1 111111 19/99/9(111 Wall I-Heftn/Fila rnvar Pnna rinr• 0 I-- \ e e a. a 2 0 as o o a ) \\/ ! I� a) o_ / 4 o / ) 3 /a A 2 k E 0 0 0 • �/u- ga ( ) E / / 5 0 k F. n c ° § § 0 / §/}a. j F. 3 < q i ; @ a) o 0 ƒ ]3 3 0 0 0 _1 0 0) -.(N k % % % 0 ? 0 § § / / % a E 0 f z I Q § S S § ; Q E co \ § ° ° 0 0 0 CO 0 0 0 E cc < ° 7 a o 0 0 0 0 = w 0 z m 2 t g 0 0 2 0 z z o o . 3 m « a § -6....4 .o W Om ) � � � , = m § cc 2 \ �'° ° S @ CO § f § \ 03 03 / \ 7 « \ ) D ± < re z / o . k ■ f \ 0 EL N \ z _12 0 ] m k k \ Q 0 E k o) (0 g to o I E as < Q o . a i— 2 \ ! To u) f � CO m 2 z I b e § S § ] m u) < $ I f a � � / w » » & > > k § o 0 0 2 ƒ § \ \ RI \ T / ) \ I © R \ # q q E fi a : o a § t \ ) z / @ 0 0 2 § -0 B . 0 0 co n £ _ £ ca z o E o 0 / R $ kk / ) \ r 7 4 ° < z _ % wOz ~ ~ ; 0 ƒ _= a I- ) 7\ , / E z \ @Jk 2 a ƒ% < j IJ 2 < ± 0 # § o o £ - z = a a f � E ° o� Q o i § o § ƒ a7 E 0 k a ° m m� = 0 $ / /� 0 , 2 ; a 2 �a a c 0 0 0 0 0 � o e o a � � CC 0 i j 0 w w u u w � < « o <± 0 0 9 0 0 Ln V 0 N Z N N U 1 o /-/ p N 0 z a Q J l U O z •' N to 0 R r J In 0 Ce a O z o U CL r- W gO ft J a W w J U m o Z Q A N 7 J o ro a N C C O o G a O N a O E • ti J a H Zi I— 1 o z b Q N CO N W CO r w '�=/� O a)X V/ 0 p co Q a O Q c L97150 z 0 Ili E --- m z a) • cn v rn 03 o ° m 0 3 N d N Q. N V 0 10 C ✓ l6 a E 0 0 o a 2 0 71.111 -0 OF%%% I s THE STATE Alaska Oil and Gas ofALAsKA Conservation Commission GOVERNOR SEAN PARNELL 333 West Seventh Avenue ALAS'" Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 Brian Glasheen Petroleum Engineer BP Exploration(Alaska), Inc. P.O. Box 196612 ago /® / Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU S-41A Sundry Number: 313-386 Dear Mr. Glasheen: Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the AOGCC grants for good cause shown, a person affected by it may file with the AOGCC an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Daniel T. Seamount, Jr. Commissioner DATED this Z 0 day g of August, 2013. Encl. ., J1 ivi RECEIVED STATE OF ALASKA e‘.5 JUL 1 8 2013 ALASKA OIL AND GAS CONSERVATION COMMISSION Si tin APPLICATION FOR SUNDRY APPROVALS AOGCC 20 AAC 25.280 1.Type of Request: Abandon❑ Plug for Redrill❑ Perforate New Pool❑ Repair Well❑ Change Approved Program❑ Suspend❑ Plug Perforations Perforate❑ Pull Tubing❑ Time Extension❑ Operations Shutdown❑ Re-enter Susp.Well❑ Stimulate❑ Alter Casing❑ Other: Convert To Injection El • 2.Operator Name: 4.Current Well Class: 5.Permit to Drill Number. BP Exploration(Alaska),Inc. Development 0 . Exploratory ❑ 210-101-0 • 3.Address: Stratigraphic ❑ Service ❑ 6.API Number. P.O.Box 196612,Anchorage,AK 99519-6612 50-029-22645-01-00 4 7.If perforating: 8.Well Name and Number. What Regulation or Conservation Order governs well spacing in this pool? 341 D PBU S-41A • Will planned perforations require a spacing exception? Yes ❑ No ❑ 9.Property Designation(Lease Number): 10.Field/Pool(s): ADL0028257 • PRUDHOE BAY, PRUDHOE OIL - 11. PRESENT WELL CONDITION SUMMARY Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD(ft): Effective Depth TVD(ft): Plugs(measured): Junk(measured): 15420 • 8943 ' 15326 8940 None None Casing Length Size MD TVD Burst Collapse Structural Conductor 80 20"91.5#H-40 35-115 35-115 Surface 3298 9-5/8"40#L-80 34-3332 34-3043.6 5750 3090 Intermediate None None None None Nate None Production See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Liner 3462 4-1/2"12.6#13CR-85 11951-15413 8910.2-8942.48 0 0 Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): See Attachment See Attachment 4-1/2"12.6#13CR-85 13CR-85 32-11951 Packers and SSSV Type: See Attachment for Packer Types Packers and SSSV MD(ft)and ND(ft): See Attachment for Packer Depths No SSSV Installed No SSSV Installed 12.Attachments: Description Summary of Proposal ❑ 13.Well Class after proposed work: Detailed Operations Program ID BOP Sketch ❑ Exploratory ❑ Development ❑ Service Q 14.Estimated Date for 15.Well Status after proposed work: Commencing Operations: 8/18/13 Oil ❑ Gas ❑ WDSPL ❑ Suspended ❑ 16.Verbal Approval: Date: WINJ ❑ GINJ ❑ WAG 0 ' Abandoned ❑ Commission Representative: GSTOR ❑ SPLUG ❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Brian Glasheen Email Bnan.GlasheenDBP.com Printed Name Brian Glasheen Title PE Signature(----Z, Ph.. Date 564-5905 7/18/2013 COMMISSION USE ONLY Conditions of approval: Notify Commission so that a representative may witness Sundry Number: 3'3-3' Plug Integrity ❑ BOP Test ❑ Mechanical Integrity Test n" Location Clearance ❑ / Other. ✓(� — f} ✓ a fl-r. 5 7La �/ / ?d / 1'I C C j1°-)'l r l r pi C a to t� �\ r�rss d � 3 � h c ,' �, o v z►' 1--► z c/ b 4ZD 3 . S OCT 1 0 20th � � t a RBDMS Spacing Exception Required? Yes ❑ No � Subsequent Form Required: / — .1-, T / APPROVED BY r Approved by: ` COMMISSIONER THE COMMISSION Date: yl .&,0 I 0 j44.29 Form 10-403 Revised 1/2010 Appro�ec from the date of approval. Submit in Duplicate t V'L-F e//¢/i3 .�1 BP Exploration(Alaska)Inc. 900 East Benson Boulevard P.O.Box 196612 Anchorage,Alaska 99519-6612 (907)561-5111 October 5, 2012 Guy Shwartz Subject: S-41A/AL1 Conversion to Injection: Your approval is requested for conversion of S-41A/AL1 to water and MI injection service. S-41A/AL1 1 is expected to support S-43L1 and R-19A Sag River completions. Surface facility work and minimal wellwork is all that is needed for this conversion. The updated facility cost for this work is estimated at$1.9MM(up from $1.7MM originally submitted February 21,2012), and wellwork cost associated with this conversion is$.05 MM,yielding a development cost of$4.75/bbl. Objectives The conversion of S-41A/AL1 targets Sag River reserves in the Northwest Fault Block. A WAG injector is needed in this area to provide pressure support to producers S-43L1 and R-19A. S- 41A/AL1 is well situated in its current location to provide pressure support and sweep to these producers. Current S-41A/AL1 Status S-41A/AL1 is a multilateral producer located in the Sag River. The well is completed with a cemented and perforated lower lateral and a slotted liner upper lateral. The well has a sliding sleeve completion to allow isolation of the upper lateral (Figure 1). The cemented and perforated lateral, S-41A, is approximately 3300' in length and has a total of 1550' open to flow. The slotted liner lateral, S-41AL1, has approximately 1400' of slots across the Sag/Shublik and approximately 1560' of open hole for a total of 2960' open to flow. S-41A/AL1 is currently an operable Sag River only producer. The well originally POP'd with • only the cemented and perforated lateral (S-41A) open to flow. The last well test with solo S-41A lateral production on 4/10/11 indicated 167 bopd, 71% WC, and 3.4 mscf/stbo formation GOR. On 4/22/11, a plug was set to isolate production from S-41A and test slotted liner lateral S- 41 AL 1 production. The last well test with solo production from S-41 AL 1 on 05/14/2011 indicated 4 bopd, 99% WC, and 512 mscf/stbo formation GOR. The high watercut of the second lateral was not a surprise as resistivity curves during drilling indicated the lateral to be water wet. In order to obtain permits for a conversion to injection, sufficient isolation of the reservoir section must be demonstrated. During drilling of S-41A/AL1, a USIT log was run in the 7" casing across and above the Ivishak and Kuparuk sections. The USIT showed good cement above the Sag River. Page 1 of 3 Facilities Scope S-41A is located on the northern expansion at S-Pad which is designed with a trunk and lateral system. To convert well S-41A to water and MI injection requires tying this well into the PWI system and MI injection service at S-Pad. S-41A will also have to be segregated from the hydraulic triple with S-42 and S-43. The cost estimate for this is $1.9MM, and the scope of work involved in this conversion includes: • Disconnect and remove production and test header divert valves. Install blind flange on header. • Remove production line from header to lateral valve. Production line will become the water injection line down stream of the lateral valve. • Remove production lateral valve. • Remove gas lift line from gas lift header to well. Install blind on gas lift header. • Safe out water header and cut in a new 4"tap. • Safe out MI header and cut in a new 3"tap. • Install a new 1500#, 4" double plug valve and lateral line from the new 4"tap to the existing breakout spool on the old production line. • Install a new 2500#double plug valve and lateral line from the new 3"tap on the MI header to the well. • Install a new standard WAG injection riser with a 2500# actuated choke valve. • Install a new hydraulic safety system in well S-42. This will allow well S-41 to have a stand alone hydraulic safety system to segregate the injector from the producers. • Install pressure switches on both MI and WI lines for shutdown. • Install new Pressure transmitter and temperature transmitter on the downstream side of the choke valve. • Install an Endress& Hauser flow transmitter on the WI line. • Install a flow transmitter on the MI line. • Install PI's as required on a standard injection well. Well Work Scope An AOGCC witnessed MIT-IA to 4000 psi, PPPOT-T, and PPPOT-IC will be performed after conversion to injection. Wellwork to dummy the current gas lift design will also be required. An estimated $.05 MM will be needed for this work. �!9✓l(i b/ /4t-C “ /l Pl'Ci P°9 lArQ1l Q17 C ar, Ve7 ,41y 'r ID 4 I o r Td cofficr-- 6 sPr- wels Page 2 of 3 Attachments TUE 4 113"'OW 'WE_I.C.A 2, S -4 1 A SAFETY NOT M: WELL ANGL E 3.70*@ 12069'"'44 12- A CTLATOR- BAKER d <3 E_EV 7172 LI , Br rill 37 — <OP- 1131' kto Age • 98"a 14&33 222T 1--V•2',C; `,P,0*3113' I l'irr VO- 11 ad 7 ai4irr Tli 2.- 8800'SS GAS Jr!"MA NEWELS I 9-98'CSG,401,L-60 BUTT,13.MOT H 3332' ,.7. 7 7 77,1 TYPE VIM LTOM PIDRT akTE 5 -EL:: 3331 4a 'KBG-2 COLE 13K 12 0E1/1 V11 4 7112 5568 47 KBG-2 DOME BK 16 08/1911 I 7"CSG,260,1.80 BTC,.0383 tot,D.9.276- H 11 371' NI 3 9705 7345 47 K8G-2 COW EK 18 0611 a'11 2 11839 8777 85 KBG-2 SO BK 22 OW 3,11 1 11808 a!-• 84 KBG-2 1:14Y BK 0 08113,11 MilliIML11.11 E - 3,725"{a 11916' .STA ill IS BELOW PPR UNAMLE TO USE FOR GL 4-112" HES XN NIPPLE .1 1 157 3' HP,1 X NP,13.31113' " ': 1 1707 LI 7"a 4.1/2"NES TNT FKEL D•3.858' I "".11 11.... II I I 1 1 T7 E' H-:.1.2"FES XNP,D..3.413- I Eil1 154 7 —1-•-1,2-ics xD(IRO SLO SLV,10*3.1113" I ii. I I 1 191G' I-14 112"HES XN NP,D.1729 I MI LLOUT IMPIDOW(S.41 L t)i 1892'-1 ism° ',AIX t•1 . -, T WNCOW(2.41ALI) 11929-11939 SQUEEZED OFF 09122/10 ..„,....-I 1 194T 11troicAt cur SLOTTEDLNBR I S-41AL1 .._ -- , 4.177%MUIR,12.60 _80 ST,.' 13701' 17714 / 31S2 bflf,12 n 4;7' IFW RP TAG H itiftr : - 7 1 5257' 141/2"773G,121110,13C1I146 VAM TOP, 11 +1951* 1 - __ 1 119 51' F-I.-.2 ..3..?1".MA OK;A W'r' 2 =.3UP I .0152bot,ID.3,991 171 I11954' 11.'" X 5"i-,IT.:.r 7 c:-".....1-P vy:MiR,c IMP C 4 F 4417 1 1 4 R H "9 5 4* '' b-----j 119 76' H-X 5-B.M r_EX_Oa(LIMINGEL D.4.220 I ,,....,_ I 7"CSG,294,L,sa BMW,lam of*o.6.184"' H -12017 ' 1E3RFCRATiONSILIAFt1AY [ -I 119 56' H- . , -2-,(,:.. c REF LOG:&B 104111 ON 09,2 V1 0 , ,, A, -■ -NICOW(S.41A) 12003"-1 201 7' ANGIE AT TOP FERE.94' 77 Nale..Refer b Ctosbcion OB for lists'Ca part cbta ----____ 4111%11%. 1133O 4 I rr RA TAG S E SPF INTEFtVAL Op/&z DATE ..- S41A -....■-- 2-778' 8 12700-13100 ' 0 1 OKRA 0 ■4m....-._ 411104411, 2-716' 8 13200-13600 0 1010300 74:44:4:4•Xiceis 1184%.0. 2-71 . -1A "Ifteli, 9 8 13703-14100 0 1009710 I EL+,110:41L.■ 2-778' 8 14200-14350 0 10/09710 0.,-1z4,a4ANI NMI ik•.44, %Nov 2-778' 8 14940-15150 0 10109710 WU PE1° 1532C ••Alt!I 3.41AL1 4-117 SL1D 11947-119E12 SLOT 10718110 4-117 SOD 12301 13658 SLOT 1016/10 41,2'itft,12,64,13011111VAIA TOP-0152tbf,0-195fr 15413' DATE FEV BY COIAKENTS GATE REV BY ccompirs cRLOHOE BAY LNT 66102116 POSE ORIGINAL CONFUSION - 05;11 MK/RIG MA L DFLG ODRRECTUIS WELL: S-41A/A 1.1 1 0 1 2.3 1 1 6 N 7 E S SIDETRACK(1141/4/A L I) -;151 1 A..ti'IRE GLV S'O!f1;13/11) FERVIT lb:2101010(20) 04/2911 I<L,S7 PJC SET SP1AG(03/31/11) '' •' " '...14/ROC'PU- -• -I. ..G 4 08.13/1 1) API ND: 50029-22845-01(61) 0412911 IA LH P4 SET P414(04/22/11) SEC35.,T121(R12E,112Er MIL&775'RI& 04)29111 .1-1/RIG SET SETAG(04123/11) 05,34/11 PJC CRLG DRAFT OORRECTIONS OP Stplatstlen(Alaska) Figure 1: S-41A/AL1 WBS Page 3 of 3 S-41A Area of review The following wells R-20A and S-12 are within the 1/4 mile radius for review in preparation for the S- 41A conversion to injection. The cement jobs for each of the wellbore and the current well status are provided. Top Ivtshak Structural Contour Map r ♦ jf r __.._.,.-.—. . • ♦ s� .. r 1 ` T t 1 1 E t t \ ..4.111414'..4.111414'..4.111414'. ■ --w 1 t t , ,. .1 r ■ - - y f 1., . ....... , ,1 ; SS a.. , 1 .4114 1 : t o,r� may._, ; ii I• I•'. S 41Al l 4 m+k % ,r ys, 1 _. �' sradius s `} ,• �• S.-41A SG male i , ,... .- . radius .w / .,, + y i i — S-41A Is our current operable producer that we will be converting to and injector. When drilling the well we evaluated the 7 in casing after we pulled the old tubing. The USIT log is attached and shows good cement from TD to 3300 ft. Our SLB engineer has reviewed the log and feels the well has good cement. Schlumberger Company BP Exploration (Alaska), Inc Well: S-41A FINAL Field: Prudhoe Bay Burough: North Slope :-3.. r.., Alaska USIT Log 1,- CCL/GR/GPIT of USIT-D a, i 1 24-September-2010 41 5 112766 FNL&77549 FWL Elea, K8. Stater* O.L. — D.F. Permanent Oatum MSL Elea 0.0011 Log Measured From: RPM abovrOM664Datum It ft — Drilling Measured From: FIK8_ API Send No. Section Township %KM 5o(129-2294 s-o 1 35 12 N 12 E Logging Date 24-Sep-2010 Run Number I Depth DfIlillf 120296 SoNoffroerger Depth TO not tagged Bottom Log Interval 4 12000 Tt Top Log!nhteval 50 rt FINAL Casing FitHCI Type Stifle &Mindy 54 ketVgai Fp:I:tad Oft BIT/CASINGITGBINO STRING Sit Sin 8300 In 4 From Oft To 12409* _ bitsmir yang Skin 7.000 in Wairt 24 ttirrvit ' Orson 1.80 F•om On To 'i1374 ft Maximum Recorded Tempera:urea 'TTBrdtrgF—T—r- :1----Orr Cr Bel°rn .„ L 7r• 24-8ep.2010 7:30 _...E=E, Unit Numbe, ' Icarian 2206 I Prudhoe Bay T Recorded By 13.Naar/W Rivard - .. Wkneend ity _B.Decker/Ft Oolkoaz Wit •,. IS Cli , i 1 ,. .1 i 4 i ,I , °I r , .„., 1,.i /1 0...`t , ,, ff 1 .., , 0 i ' i --.- i . 4 '''' '''.• 4 (... 4 1 i • a: 1 ■ i' I 11 1 . ' • i I 11'4 • , I i . w . t i , i 1 , • • x , . , ! . . . .. . . 4.1... 11 '. 1 • . , . ,. , • Li - . .i• ..... /1 1 ' • ..... -1' - • ,,, • t 1 , I , mr.........., ... • i . i • • I 4 • - I' .. 0 1 •. _..... - ' .i.,.4 41 -, A 4 4-, 4 i I b .,, ., . , , ..., , . , • . . , i A it , „ „ . - .1 • -1 .„44i. ) ! .*: ' ' '' •••. 4 •••••• * i t ' i 1 ,. ..* 1 ? ' I t _ 4. .7. 4 1"-•`. , It 1. , 4' „ ...... 1 '..„.., ■ it , ■41I• VT -1••• 41' i .4..: .4-4 1.t 11;..t zi.i. , ... .44..-e Pe5. at ' .. .116..7; ill: ,111:144'''' 14111 ' 4 41 ' Ill', : I- , , ' 4 / . i 11 + 1 li 44, 1 9 Y. ,,t,,, _ ,, . , 1,,to:, ,,* le • r 4 . „I zz, w .. r. 1; « a imp t 4 - •f' : # 4I ; A MIIIIC. F 7, . i € I ..-il f , r NMI 44,11111 a am r- s a 4 411=1 ds�r r 41181 60110•. Ms 4 w s miss... •orA . -• M �7tvtq _NOM moiwo / �may . • -./Y r 0.0•00... 0 ono. ti 1111111M .+1.' W i1? lti.i ui i =t MINIM w �� p Y1111•wr ,; nilellISIND MM WINIIIIII 11141111111111 ML 4 C-+* . 6 • iitlefau Al IIIIN :41'0 Ii ■ 4 'UV • . — 1 ■• l_I111111■•••■•• _.. 1.... a-Comm NaM Saw ff •IID•I o•• coma•4101••••••■•.••••••• OOrhRAHOIS qAM 110•1•60100•6 ••• w• 004•1 am.. .••• S•••• w•....riw• t R-20A- Is currently a LTSI not operable injector with a 32' surface casing leak. The cement bond log attaches shows good cement and has been reviewed by our Eline well intervention engineer. FILE COPY qtr COMPANY:BP EXPLORATION (ALASKA). INC. WELL R-20A FIELD: PRUDHOE BAY BOROUGH NORTH SLOPE STATE ALASKA CEMENT BOND LOG(SCUT) t _ GAMMA RAY CC L 41111nhr $ 2S-OCTOBER-1999 BA1713.a911@K m f .n• ATAUPPACE Gl aty1 • M.F CT 1 t ti: Amrrt Ottum M5,, Bu 41 _- lnp N.waraa nR p •n It tee.a Pon*Mbar 6 Goan oftw0000 Hato Fars AR 9•W*At, j 5EC-ICTY 1CTM43ttP WINGE 9D�'GiFiPN�.{n ,3E .Nypr9 nob r.-OCT.?YM JIVE =oW ati' Paean I v;rMwl t20111 %F. Kee t Crrrr Fuel PRZO-CEC WATER Balwift 01.4 Leos. Row ti KM ft w IOW kw To went i isicals=E=„. .- 4 4 . , . 4,,..„i',.:_i,', Pk. 1 ,..,,-.‘, i, . .- .-7 -. , - -_: .. .p ./- ..,„ . i i a In=e 4 if ii 'af r Mit i - . -'' ..i, •. ,..-� . iii,„, t , ,r ' 4,1* i -I.. monlisiti ,iik. ; . .. . .. ,,,,,:, ,.,,.., m,,...%-.: 1 , ____ __ ............ _ ,.. A... -, . . .1.I 4 il$r,_ ,=Aiii. , . 1 . , . , __.4.01.11..2=--,:-. 4-..■NM NM -..�� tt, '�'.+�.�. L '.. �--� ,fit amiamili ----4-- e r yi 1 C� . __ Y 1111•• 1"...ieNtIll tit ■ . ill 1 N• `..., !! ! i _ _ , . �: s = t, . ............' ...mom . 1.4, . -- - -M � �� 4 . sign i x MK ■E �, - _ 1111 ' , , : .� m��wr>t .... i .w�aa to i.ay MN Min --. R!'. } ,..,:ai ._ . _ t_ . .am t tel.,,s , {/■ q { ----- •R lialillnitill _ ss-- - 2=------ -. NM'�_ ==--- - . �-- -.N I I MI. _ a nor-W --- • c-tea -{'-�� iEmilanis:- (cc MP e —.0 ft • min---sow— .....11..J I ---_mm—mm } MI MN ClINII=11 MN■IMOD=PM ... (1;:f 4 —a�---- , n ___awaan ar..1 CM=nal=■IBM I■ : . „14,&tyk.'t i -AMMs • ------- . _--- 1 � il t .....me : "'------ S 1.:� -�_ !MEN � -- i ,'�_ 11 ------�_ �,. 1 MUM 110101.11.11 * ifl,, ,„.1.,!itilill MI MI MN NM MI MI I —_ X1111 ', 1 , 1 raw NS ___ _sn= _ . 1 •tic?,ail" _. di• . . , , Ii!IIIIII! .. . { s ii i NMI 1 • 143 *it .4 . 11111 mil I mime t alr!P'4 IN 1, i 4, f * lc/i i ; MT T tteob o— ■ _ kailli _ : __� ., j ft*-*A. imam me J �:. . , g` gin ' 1 Iii}tli.S.,.. MUMM i maims , .r•••. , ". — ---ii-.--i--- 9 :lide......1116— ---_...... _igAI� �-- rte___-----=j . 5,r 4 ty _,.J— l - L-.■-----.. _----- t ...i±it ra.-- — ` • - r� —:_- _ ._ ---- ti ,, i i S-12-Was never completed and was abandoned in 1984. When drilling S-12 9-5/8' Casing was set and a 7 " liner was also set. For the 9-5/8' casing 1360 sacks were pumped and we saw the plug bump. Also tested casing to 3000 psi For the 7" liner 460 sacks were pumped and we saw the plug bump. Also the liner lap was tested to 3000 psi. Below are the drilling reports referenced in the summary above. SON.,/8P DAILY DRILLING REPORT 0600 HOLRS A D C 0 E F G N I ��1``TE WELL RIf, DAY NC PE 24HR FTG WEATHER J�'Z J-�t s<xT Is /Y /0794 -4;- 2 I,EN PE DS FLEL WATER A/F/D fsf, D F SLFUR 9l 1'z ..,, .,- yov ' / s 2/- el ` 'TTtu3Lt- 3 CLRRENT OPERATIONS D0,21-1; v'. 4 PLD/WT VIS PV-YP GELS TEPI FL CAPE P 1 y$ ..',%1- 3 -c0 z-4 6. t x 5 PH SAND SOLIDS HT-HP CHLOR RYF 75'F R T.0 9 - 60,) - 6 WELL COST INTANG TANG TOTAL /0,+,'4-i8 b.3790 /7.z.1--2 o8 i 7 DRLG ASSY PIT NO.-0,3 17/r i 4104 >G r be♦ .;r ;x t t r,. t vG"...J r K to t,P E PIT NO SIZE RAPE TYPE SR NO JETS DEPOLT FIG f /° Yi VI tt:Z O N 9 FIT NC RT MRS WEIGHT RPV PSI LNR SZ SW GRADE lE SV NO COPDEP ANG/DIR TVD SECT N/SCO E/WCO DES -,; —_ x r —� r.,- Gf - 4 rxsxc x I--, ,V l- .l `� hit. , II - Lr7 AR A '� 1 ' % f'Ad I/#..' x.'ex Ad,/ /11944/t if f,./C i asr'!R"// 4 / 4.; d. , L /1 '• 140.41%,,. ,r-,IC- __ p.,esw - C.4 4j C.,CG. et,,i' •5 /J..e.P, /1.s`_ 7., C.sy'..r...La.'I c/ f &IC / &14. /Z/ psL.Xt fK r /a.v , . / _/.t/..- _ '- .;J.t. 0.44.-ii . %4J frV 11,44t,..,if -Cr}AI _O,A,eV. fide :FTi___._.. y ?XL eI, :cxr - /✓fi3'f cJK.. _ 116 r C.F.i ,-,,,,,77-.-,-. ;e0IvC __L _"/__1._`,/r, 111,"V 1-"tr^' . 1'C'2 c<,/+i.h i';e/ r 414., , 444, /'4-*4! tiA, ; _41.°0 /.!' r .1,-"e,au I' ,. �. t1uSe :✓ f„ s Lt./3 N L K 117,^ /P l a n g/ G' +.+. ([(.u'*': i'i°f//,._'Y:-c...4. t._a CI.tr+r -/C»...t /*At..' v., __.'Yxl- ,,t'i'. //. 'F+i,, /IN,- .v r. 7 1.r• K ._... 1, .22.,' / .._....,, . //.L/._....if % _.._,✓ ri /',._.11.E/.w /:_. •f:_._, ;;../x... +. &'fix l.c. Of,-; y .) 1' SOH.J/PP DAILY DRILLING REPORT 0624 HOURS I DATE WELL RIG DAY NO DEPTH 24HR FIG WEATHER S-22-32 S.-S2. 21 E. I 4-- II 04 Z!if 2 KEN BEDS FLEL WATER A/F/D BOP SPVR 14- i2 24%0 /J .ø 44 3 CLRRENT OPERATIONS 4 rtoRivT v IS PV-YP GELS TErP FL CAKE lot slo s .2-4 74• 4.g 1. 5 PH SAND SOLIDS HT-HP CHLOE RHI 75'F 4 700 6 WELL COST INTANG TANG TOTAL / E'/49 bJ90 7 DRLG ASSY BIT 630.40-,3 in,*Root q4 Dc C* J Dc 34 0 4 •"S 0.4 PIT NO SIZE MARE TYPE SR NO JETS DEPOLT FIG ' /3 O A- Zr" P54 A.1.0 024 I L 9 PIT NO RI MRS WEIGHT RPB PSI LNR 5Z SW GRADE SV NO COPIDEP ANG/DIR TVD SECT N/SCO E/WCO DES 12,0 S'Att Are 41e 1163' , it SLFiriAllY OF OPERAfI01715 ofeap- ors. MLA_ r on. -C o rerr c4c,...4.1 4-12.aio at To ea et- •i /1.30_ ,/310 pa's, 0.1 p4440 r I •-/-444r c414.4.0c, Tel 7 e4.41 Yitwo 4/14- OP I C.44 I 7 /0,,Is f'• - . SO) ./DP DAILY DRILLING REPORT 068t HOWLS A 2 C D I. F G H I I DATE WELL RIG DAY NO DEPTH 24HR FTG WEATHER -2 -82 X.fi 226 ip //glo .-<-,.. 2 FEN REDS FLLL WATER A/F/D BO), SLPVR 1 1-,1 ;z_ lid 5-- Li-RZ. XE/2/a/A416Z,.. 3 CLRRENT OPERATIONS C, r 4 YLD/W1 V15 PV-YP CELS TEFP FL CALE '1.4 - U.- 1 2_-5- c?c.. 5 PH SAND SOLIDS HT-HP CHLOR RIFF 75'F ,,,- ..- 0 ..; _ 6 a•L) / 8 , 6 WELL COST INTANG TANG TOTAL /47'00/ -2) z_.i• .4. i '1 DRLG ASSY BIT NO. Vr/3 1frr,,re/24i062, )(0„. Z.DC. , )(C) it 74/ .E/ -1-1145 .-- E PIT NO SIZE MANE TYPE SR NO JETS DEPOLT FTG Ri2 493 A'/ /J6IE,1 tii4.41 A/44 Z1 I 9 PIT NC RT MRS WEIGHT RPF PSI LNR SE SF GRADE IE 5V NO COFDEP ANG/DIR TVD SECT N/SCO E/VCO DLS r:,... 1W Trs 7" ‘,4-ez7-1- Akr-f7F—... 15-34 , _ T.r, . le-3 4,2 'c.:.,Rr7 _ euc'c,,,s-0 • r...r o • -.....x.= ----.7) s, - F.,,..-4'' rat 4: 1,797. )tt Wr -° I‘ .', c,. Pri.5PC S 0 Sdi./ rk -,, „ 0 r?7 ...;, -,-7 .. 1 m o t r 'C S /35" F - il _., II stkr-ARY (IF OPERATIONS ff !..i-7.4■L /4416; - - ---- r - 4C00 I'l* :V/ •-:" DP - - .,1 ,-13,-) C . KILe_ or C(/./e./C" pi P•,:k. t,.."..' /4 30 - i Sot) -/Z/H To Fe3-77ext - ..___ -----, s-co - 16 0 Milk:5 (.14 c A4 r 44O1 cgu ! _ r6,;( ::t7cso AfIx 0 pu04 p 440 51( t7av - ,7• ._f_.,,_., E ,..:krr 4.4../ et, 140,,4.. f - 73,...,4? 1,406 w1000 PSZ1 174 4.- 19.00 _SE-r- /79V6 - 7Stcki 0 kff euvAdiA, I Too r. -- _ /5r!Fr.■-/;30 ?C-I Ai fi r sra 701_ _......., rwse _ ,Id,<, Cc_64/Z F,...00,2 iti v 444p 1111-4- - - '4c Al - cA/ no(41.4.. lev 4,41rA,i rOVC, us/ Do,,,,,v To/INT rOot/ TARS 71 _ _ 142 - ,2/4.5* (A/ DO cv 4.1 Z/ /Ts- De 746 c Acr_cc _f7.571_ c 14C - c•Loc., 772 EE4/ . c,fzc • ,o7o0 - 023o - 1 01 To q73' oZ..30 - 04do ccE44., edvr c AA r To /07.407- _ 1 .., SOL ../BP DAILY DRILLING REPCRT E660 HOURS A P C D E F G II I DATE WELL RI( DAY NC DEPTH 24HR FTG WEATHER 5-Z1 ete S.iz zze 2 e, //840 dr 2 rEN REDS F LEI WATER A/F/D i F SUPWR 37 %2 ?7 y A Ai) 49 •%- ze-5.2 Memetnefife 3 CLRRENT OPERATIONS - (-_ .i.(1,'C-* ,'''L 4 YLD/WT !J1 FV-YP CELS TErP FL CAPE 9 6 3S- I? - 1 I• 1 cfs• 16.," 3 S Ph SAND SOLIDS HT-HP CHLOR RPF 75•F /2 0 'y 8 — 4,co — 6 WELL CCST i ATANG TANG TOTAL 1c01-81,1- ::.19S03 7 DRLG ASSY BIT NO. ■ 4,4 3ir C e Q w//4 1 0 2.,xu ..:z t e., 4 2 - 3.,/,. yo , w o / e,c4/.. •S 'DP, -7,465/ y• bP - 6 PIT NO :AU HAVE TYPE SR NC JETS DEPOLT FTC /3 gjc asis N A 714 A 4,..7e4' ...r.r hoev/ 6- ,•-■ :: c"Ii.I.: ..7 `,:'ii,,,:!...'_ (.3,..,r 9 PIT NO RT NRS WEIGHT RFt PSI LNR Si SPY GRADE C(-Er,34.. .:24.,-r c kir I $v NO COPDEF ANG/DIR ?VD SECT N/SCO E/WCO DES ■ - - II - 1.1-5-7--.rARy rf opERAT 1 oNs .,....::44, s 4.. r c V t' -'0 6 r1 7-‘1,7 Aro __ 2 ..; _ . . ,-,_:,;•__ :..., ,,,.■: -• Tar 44/2 ,- , 3,3 s,::.. 'c,:7 ■ - 1 Zat, :P6 n e ■-•Y ■,--),-1-''4-• *F- /'4 -- - •4,'. ' '•,1,•",f-,,, .--, _t_.:11,..p_161;e P I CK atp 4 1/4 8/1'4 le -5','„,,' z,,,,0- 64/.5- -_.. ,, .i..c k'‘Ai mi7 tC' DP 7-:, /0--.7 f/' (C/,61t,A.' 7,,/ ) t. 1-,',, ' ‘.,,,...,' ,..,i,I,/ /3r,,),, .....}, c,4,..4-ri - ,7;__ ref./ 7---- /07 4,": - - r n r-,,,)4 zr -___________ - tir., gl,-/ r , 4.0 iii,7n, ' qi nee/tC. c441,0 ou r.- - 4.4./aF ,..-.c,r N4,i'l? f'/I - ficK/ ,6 " _ — -- 2 z ao - Z.4oc, IC..■/5 o ;pet'Gull cA4d 6/4 d co c..G.doe - r.,(..,r I.,4.,611. -7-o F:C ve.(Ala- Led /17971 4 f - (-,3eye-, 7E-..r - ,f' . „fc'...k.: i'r 44 I., -IL-, 4 o ;&G ,:t--e-AA, A--f cu ) P,rs- ; 1 SOH /BP DAILY DRILLING REPORT t6C0 HO ERS A C 11 I DATE WELL RIG DAY NC DEPTH 2 4HR, FTC VEMTHER 5 le-62 IL 22 tI it 94o .-d. 2 NEN REDS F LEL WATER A/F/D ROF SEPVR ", cz. too 6 2- 1;:iriemmeaez.„ 3 CLRRENT 0 PERAT I 0115 t` 4 NED/VT VIS PV-YP GELS TEMP FL CANE P tvel 5 PH SAND SOLIDS HT-HP CHLOR RrF 75.F 6 WELL COST INTANG TANG TOTAL 1 SCO/C9 4115,,3 Z 2f9,6-7z. DRLG AsSY BIT NO. {c4d/464 )O 3,4. DP,Afc'e", / 5-"bP.,"34,25 ti LP FIT NO SIZE PANE TYPE SR rIC JETS DEPO ET FTC /,'t 2.0 4:2 2 a4947z,.. 9 FIT NC FIT HAS WE I GhT RN,* PSI LNR SZ 5PN GRADE E- CcIrwfA, 0 Ler 7iL -1 I e SV NO COHDEP ANC/DIR TVD SECT N/SCO E/VCO DLS ir4L E,fc. NA" te* Co* z- 41,rode 5actara 4.44c Alge. ----TT- 5 ErNARY OF OPERATIONS - oloo - o ) .tr /• ...it" Ot, tS1-.,4.c F/ZSCAO F a C,6 A,C-6 3y lave> 17c,<L,S" 474 CI- - a , - 4ç 7V . A/EA,' -Psz A.dt) "t.ve-4_ . 0400 F,L. joE 17_ 66ZS -D,ESEL. 406 77e- e E +.4-,64,2 A_ A , Perforation Attachment ADL0028257 Well Date Perf Code MD Top _ MD Base TVD Top TVD Base S-41A 6/13/11 BPP 12700 13100 8939 8932 S-41A 6/13/11 BPP 13200 13600 8935 8952 S-41A 6/13/11 BPP 13700 14100 8951 8951 S-41A 6/13/11 BPP 14200 14350 8958 8965 S-41A 6/13/11 BPP 14940 15150 8949 8937 AB ABANDONED MIR MECHANICAL ISOLATED REMOVED APF ADD PERF MIS MECHANICAL ISOLATED BPP BRIDGE PLUG PULLED MLK MECHANICAL LEAK BRIDGE BPS PLUG SET OH OPEN HOLE FCO FILL CLEAN OUT STC STRADDLE PACK,CLOSED FIL FILL STO STRADDLE PACK, OPEN SQF SQUEEZE FAILED SPS SAND PLUG SET SQZ SQUEEZE SL SLOTTED LINER PER PERF SPR SAND PLUG REMOVED RPF REPERF i LO LO a) o O O O 00 °I CO Nr 0? 00 00 ce = J J J M r r a) N O. O N O) O LO N CCV)0 U N o o 0 o C) v CO • v N N- a) ca in v, m — 0 M d' 0 CO C) O C) C) a00 OO M Cp O d O in co in T O N Q M M CO M C) M CO CO CO N- E L m EN N i- M Ce) r- 0o a) inr— OM '- 1.n N m co O CA N M to O 2 CD J C Q 0. N ou‘° 0 o H Cn co N- st N U a co co co a) co 2 o O ce oo °000 = 0? co J co co a- a- N co CO CO 0) V- CO CO Cn p) • co N N N O N- N- IC) - - N O) N r r v M0 N o) N C O M M o CA a) co •- (0 co T- co i- O O O ca w U UOOO � QZ Z O O c W m OD 0 4 Packers and SSV's Attachment ADL0028257 Well Facility Type MD Top Description TVD Top S-41A PACKER 11702 4-1/2" HES TNT Perm Packer 8804 S-41A PACKER 11954 5" HRD-E ZXPN LTP 8911 --1) co-omi, ga-0,71 'i F, 1 1 vs ma '> zg .. 1,11- murT til-7, Mg-50 +31...▪NZ---..,4-.LINwmti-4. a -..:>ecoOnaax.moosam.7,:w - :i0 s-g V os-g :IF , c9 m (72› r 1) z) m t. o 2 F)88ESIRMVulgl"q; ... 5 mm .<co co 0 z z 1. V tr. wzzocomcoroomm,,mmcom 00 -Icc=t-o-4-1-1z-1.-frocc-710 m z r 0-or 0) 1 o SC. ** oo =Imo Sq z 14 p 4.).....,.4417,2grr17. M -I C e)I,,)3 tg6" ,A1Cle6M1g t-lY) 73 Z OMM i ...r13 0:inrs, ( f . M0Wm -71q 1 ,.I I I-ZO 0 0 -C77',s 7.7.1,7C;MM 7 0 0 3V4V.r..4. 73(sys r z m o btDC Z CI Loorqp.k.D F IL ) CU i › oo 3. Ro 4' . Su- li, . , .. vo 0 41t. I 0 (15 08 g-e-612Qttt -.'" Ft..;;.." 0 0-E, —1,14,2 ,-; Itule. k. 0A 00°0—.0°8888 :t888 <U2-, 00 —,NANJ 6.......... —,—.6..... p It 1 IDI kel)(1) ■ .II• I ' I - p 411D 42RAW!'t;_ 0 z 0 0 3 .0 ,^ 12'7 0 0_,_ C` R4014. * & :ii D i.. . . (A >w>aco . .mua Sao ow. . g 028 o g* 0 0* . .. 8w x>mi . R .10 • 2- i.)7. ° .. 2 2Ea i § 3 ,-- '-' - ---- ---• 2 ,,--, e naNa -I^ mom W" •ra mow> o m qiro ?Igo,* m m N e'o N D D u m A C7 r O) 7 \1\\\4 j d m i S 2 N m 0>000c4000 m A 1 DC AoHA AD 1_ 1n � 1-00-.10000 0 o 06066860 o' < 888888888 * r n r A +m O ON N m N N O W a A 2 Z 03,y o C NC Z C O 0 b O A r _ ern~ A m• • ''s�N� z I= �� m D 0 C ��\■AP e MM00+000c0 0 W N N+N t4 N N N . ems+ C't° m ......... N+++ + C) Z IN N D o O m () 3 N i y o 3 m GI d +++ + o m m 3 0 m Or, 0 oq�mm Z;(2= m ^12> W N J ., V_QO d q .1 . 1 '' *7.1 .9.7 s ST e 3 . r f, �. Jam, j j., N 0 0 k STATE OF ALASKA k ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: ® Oil ❑Gas ❑SPLUG ❑Other ❑Abandoned ❑Suspended lb. Well Class: 20AAC 25.105 20AAC 25.110 ® Development ❑Exploratory ❑GINJ ❑WINJ ❑WAG ❑WDSPL ❑Other No.of Completions One ❑ Service ❑Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska)Inc. 10/24/2010 210-101 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 _ 09/29/2010 50-029-22645-01-00 4a. Location of Well(Govemmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 10/03/2010 PBU S-41A 4152'FSL,4504' FEL, SEC.35,T12N, R12E, UM 8. KB(ft above MSL): 64.98' 15.Field/Pool(s): Top of Productive Horizon: 3442'FSL, 1799'FWL, SEC.25,T12N, R12E, UM GL(ft above MSL): 37' Prudhoe Bay Field/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool 1451'FSL, 3447'FWL, SEC.25,T12N, R12E, UM 15326' 8940' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 618930 y- 5980355 Zone- ASP4 15420' 8943' ADL 028257 TPI: x- 625153 y- 5985028 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 626835 y- 5983065 Zone- ASP4 N/A 18.Directional Survey: ®Yes ❑No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900'(Approx.) - 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD: MWD/RES/NEU/DEN/GR 12003' 8932' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT, CASING WT.PER FT. GRADE TOP I BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# H-40 Surface, 80' Surface 80' 30" -260 sx Arctic Set(Approx.) 9-5/8" 40# L-80 34' 3332' 34' 3044' 12-1/4" 1067 sx CS III.272 sx'G'.30 sx CS II 7" 26#/29# L-80 33' 12003' 33' 8932' 8-1/2" 360 sx Class'G'.212 sx'G' 4-1/2" 12.6# 13Cr85 11954' 15413' 8911' 8942' 6" 379 sx Class'G' 24. Open to production or injection? IN Yes ❑No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/TVD) (MD+TVD of Top&Bottom;Perforation Size and Number): 2-7/8"Gun Diameter,6 SPF 4-1/2", 12.6#, 13Cr85 11962' 11702'/8804' MD TVD MD TVD 12700'-13100' 8939'-8932' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 13200'-13600' 8935'-8952' ,__. _ 13700'-14100' 8951'-8951' = cu t:4;i 1:Sa ,DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 14200'-14350' 8958'-8965' ' T. 2270' Freeze Protected with 77 Bbls of Diesel 14940'-15150' 8949'-8937' I ) ,,, . 0 f ■ s 7sigh: 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): November 3,2010 Gas Lift Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 11/3/2010 12 Test Period ♦ 109 257 43 176 2350 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 550 1080 24-Hour Rate ♦ 218 513 86 28. CORE DATA Conventional Core(s)Acquired? ❑Yes 0 No Sidewall Core(s)Acquired? ❑Yes 0 No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical result4. er 250.071. RECEI None RBDMS DEC 13 20 I DEC 1 0 2010 + rr c� Cons.Comms$101s „`�BNr�i ili�(78S Form 10-407 Revised 12/2009 CONTINUED ON REVERSE Anchormit Original Only 7% /Z•/3.16 ,/ „0a 29. GEQLOGIC MARKERS(List all formations and markers encountered): 30. FORMATION TESTS NAME MD ND Well Tested? ❑ ®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. Top Shublik A 11995' 8928' None Top Shublik A(Invert) 12690' 8940' Sag River(SGR GR1) 13875' 8946' Sag River(SGR GR2) 14191' 8957' Revert Sag River(SGR GR3) 14378' 8966' Top of Shublik A(Invert) 14921' 8952' Formation at Total Depth(Name): Shublik 15420' 8943' 31.List of Attachments: Summary of Daily Drilling Reports,Well History,Well Schematic Diagram,Surveys and Leak-Off test summary. 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed: Sondra tewman Title: Drilling Technologist Date: I a ' ID- IC PBU 5-41A 210-101 Prepared By Name/Number Sondra Stewman,564-4750 Well Number Permit No./Approval No. Drilling Engineer: Mel Rixse,564-5620 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 1a: 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 12/2009 Submit Original Only TREE= 4-1/16"CNV SAFETY : CHROME TBG&LNR I WELLHEAD= FMC S 41A ACTUATOR BAKER KB.ELEV= 71.2' A L 1 BF.ELEV= 37 KOP= 1131' DRLG DRAFT Max Angle= 98 @ 14925' 2226' 41/2"HES X Nipple, ID=3.813" Datum MD= 11843' Datum TVD= 8800'SS GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LTCH PORT DATE 9-5/8"CSG,40#,L-80,ID=8.835" _I 3332' -• 5 3742 3331 48 KBG-2 DOME BK 16 10124/10 4 7112 5568 47 KBG-2 SO BK r 20 10/24/10 C 3 9705 7345 47 KBG-2 DMY BK r 0 10/20/10 2 11639 8777 65 KBG-2 DMY BK r 0 10/20/10 1 11807 8849 64 KBG-2 DMY BK ''r 0 10/20/10 Minimum ID = 3.725" @ 11915' 4-1/2" HES XN NIPPLE 7"CSG 26#X 7"CSG 29#XO —I 11371' X K I , I 11672' IH4-1/2"HES X NIPPLE,9CR, ID=3.813" 71 I 11702' I--17"X 4-1/2" HES TNT PKR,ID=3.856" J RA PIP TAG H 11782' I i I I 11778' H 4-1/2"HES X NIPPLE,9CR,ID=3.813" I Ill I 11842' J—j4-1/2"BAKER SLIDING SLEEVE,ID=3.813" I 7"CSG WINDOW 11892'- 11905' (S-41 L1) SOUFF7 ED OFF 9/22/2010 7"CSG WINDOW 11926'- 11939'(S-41A-L1) [MECHANICAL CUT SLOTTED LINER 10/17/2010 H 11947' ..-- 3 i '- i s-''y( L, ,i ' ( 11915' I-14-1/2"HES XN NIPPLE,9CR,ID=3.725" 4-1/2"SLOTTED LINER 12.6#,L-80 ID=3.985" H 13701' I \ 11950' —14-1/2"BAKER SEAL ASSEMBLY I 71,4-1/2"TBG,12.6#,13-Cr 85, .0152bpf, ID=3.958" I 11962' I 11954' 5"X 7"HRD ZXPN LTP W/11.79'X 5.25"PBR I 11976' -j5"X 7"FLEXLOCK LINER HANGER 7"CSG,29#,L-80,.0371 bpi,ID=6.184" I 12409' PERFORATION SUMMARY REF LOG:MWD 11976' —IRA PIP TAG I ANGLE AT TOP PERF:86° Note:Refer to Production DB for historical perf data SIZE I SPF INTERVAL Opn/Sqz DATE S-41AL1 '1° 12(1a SLTD LNR 11948- 13701 0 09/30/10 5-41A 3" 6 14200- 14350 0 10/09/10 , S I A 3" 6 14940- 15150 0 10/09/10 / I '9 IL 3" 6 13700- 14100 0 10/09/10 I 1e1( PBTD --I 15326' I 3" 6 13200- 13600 0 10/09/10 /A 3" _ 6 12700- 13100 O 10/09/10 4-1/2"Solid LNR,12.6#,13-Cr 85,ID=3.958" I 15413` DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 04/02/96 ORIGINAL COMPLETION WELL: S-41A&AL1 10/23/10 N7ES SDTRCK/LAT(S-41A/AL1) PERMIT No: 2101010/2101020 APING: 50-029-22645-01 /-61-00 SEC 35,T12N,R12E,4152'FSL&4504'FEL BP Exploration(Alaska) North America -ALASKA- BP Page 1 of Operation Summary Report Common Well Name: S-41 AFE No Event Type: MOBILIZATION(MOB) Start Date: 9/3/2010 End Date:9/6/2010 X3-00W9R-C(835,325.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/3/2010 00:00 - 07:00 7.00 RIGD P PRE R/D FLOOR PREP TO LOWER DERRICK, SECURE&DISCONNECT PITS,MOVE PITS OUT OF SUB CRITICAL PATH,BRIDLE UP& LAY OVER DERRICK, PREP SUB TO MOVE 07:00 - 00:00 17.00 MOB P PRE MOVE RIG OFF DS-5 AND BEGIN JOURNEY TO S PAD.SUB 1/4 MILE FROM FRONTIER CORNER AT MIDNIGHT, 9/4/2010 00:00 - 02:00 2.00 MOB P PRE RIGHT AFTER THE FIRST TURN AT FRONTIER CORNER,ALONG SIDE LAKE AFRICA,SUB PUNCHED THROUGH SPINE RD WITH ALL TIRES. 02:00 - 08:00 6.00 MOB N SFAL PRE SECURE DUNNAGE TO PUT UNDER WHEELS, ' JACK RIG UP AND CONTINUALLY ADD DUNNAGE. 08:00 - 09:30 1.50 MOB P PRE MOVE SUB ANOTHER MILE DOWN THE ROAD BEFORE TIRES BROKE THROUGH AGAIN 09:30 - 12:30 3.00 MOB N SFAL PRE SECURE DUNNAGE TO PUT UNDER WHEELS, JACK RIG UP AND CONTINUALLY ADD DUNNAGE TO FREE SUB 18:00 - 00:00 6.00 MOB P PRE MOVE SUB FROM LAKE AFRICA TO J-PAD. LEAP FROG MATS 9/5/2010 00:00 - 01:30 1.50 MOB P PRE CONTINUE TO MOVE SUB FROM LAKE AFRICA TO J-PAD WHILE LEAP FROGGING MATS 01:30 - 02:00 0.50 MOB P PRE MOVE SUB FROM J-PAD TO BALL MILL WITHOUT RIG MATS 02:00 - 09:00 7.00 MOB P PRE STAGE SUB AT BALL MILL AND STAGE RIG MATS AT VARIOUS SPOTS ALONG ROAD 09:00 - 15:00 6.00 MOB P PRE MOVE SUB FROM BALL MILL TO S PAD AND STAGE ON S-PAD 15:00 - 00:00 9.00 MOB P PRE MOVE PITS,SHOP AND CAMP FROM DS 05 TO S PAD. INSPECT GERTS AND LOAD BEARING BEAMS ON SUB. PJSM WITH LITTLE RED. PRESSURE TEST LINES TO 2500 PSI AND PRESSURE TEST OA TO 2000 PSI FOR 30 MIN. LOST 60 PSI IN THE FIRST 60 MIN AND 30 PSI IN THE SECOND 15 MIN. 9/6/2010 00:00 - 02:30 2.50 MOB P PRE CONTINUE TO MOVE PITS,CAMP AND SHOP FROM DS 5 TO S PAD. HANG TREE IN CELLAR, LAY RIG MATS AND HERCULITE AROUND WELL,STAGE WELL HEAD EQUIPMENT IN CELLAR 02:30 - 04:00 1.50 MOB P PRE SPOT SATELLITE CAMP,SHOP AND STAGE PITS 04:00 - 06:00 2.00 MOB P PRE SPOT SUB AND PITS OVER S-41A 06:00 - 08:30 2.50 MOB P PRE CONNECT SERVICE LINES AND ELECTRICAL LINES TO PITS,CAMP,SHOP, BERM SUB AND PITS. SPOT CUTTINGS TANK 08:30 - 09:30 1.00 MOB P PRE PJSM, RAISE DERRICK, PIN DERRICK, CATTLE SHOOT 09:30 - 12:00 2.50 MOB P PRE PJSM, BRIDLE DOWN, RU RIG FLOOR,RU TIGER TANK, RU SECONDARY ANNULUS VALVES. RIG ACCEPTED AT 1200 HRS 12:00 - 13:00 1.00 RIGU P PRE RU LINES TO TUBING AND IA. RU CELLAR. 13:00 - 13:30 0.50 RIGU P PRE PRE-SPUD MEETING. Printed 12/9/2010 2:03:50PM Page 1 of 28 North America -ALASKA- BP Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/6/2010 13:30 - 16:00 2.50 WHSUR P ■- DECOMP PJSM WITH DSM. RU LUBRICATOR AND TEST TO 250 PSI LOW AND 3500 PSI HIGH. PULL BPV. RIG DOWN DSM. 16:00 - 19:00 3.00 WHSUR P DECOMP PJSM, RU CIRCULATING LINES. REVERSE CIRCULATE 49 BBLS AT 4 BPM AND 600 PSI. CIRCULATE DOWN THE TUBING 39 BBLS. CIRCULATE BARAKEEN SOAP PILL SURFACE TO SURFACE AT 5 BPM AND 840 PSI.RD AND BLOW DOWN LINES 19:00 - 22:00 3.00 ■ DECOMP DRY ROD IN TWC AND TEST FROM ABOVE TO 3500 PSI AND BELOW TO 1000 PSI FOR 5 MIN. RD AND BLOW DOWN LINES 22:00 - 23:30 1.50 WHSUR P -_ DECOMP PJSM, BLEED CONTROL LINES AND NU TREE AND ADAPTER FLANGE 23:30 00:00 0.50 WHSUR P ■- DECOMP THREADS ON MAKE UP ROS ROLLED. UNABLE TO MAKE UP CROSSOVER. PJSM, NU BOPE 9/7/2010 00:00 - 03:30 3.50 BOPSUR P ._ DECOMP PJSM,NU BOPE, INSTALL TURNBUCKLES AND RISER. 03:30 - 04:00 0.50 BOPSUR P DECOMP RU TO TEST BOPE. 04:00 - 04:30 0.50 BOPSUR N WAIT DECOMP WAIT ON ARRIVAL OF 4-1/2"DONUT TEST JT. 04:30 - 06:00 1.50 BOPSUR P ® DECOMP RU 4-1/2"DONUT TEST JT AND REMAINING TEST EQUIPMENT. 06:00 - 11:30 5.50 BOPSUR P DECOMP TEST BOPE AND CHOKE MANIFOLp TO 250 PSI LOW AND 3,500 PSI HIGH WITH 4-1/2" TEST JOINT. TEST ANNULAR PREVENTER TO 250 PSI LOW AND 2,500 PSI HIGH WITH 4-1/2"TEST JOINT. -ALL TESTS GOOD. AOGCC REP JEFF JONES WAIVED WITNESS TO THE TEST ON 09/05/2010. TEST WITNESSED BY BP WSLS RYAN CIOLKOSZ AND DAVE NEWLON AND NAD TOOLPUSHERS LARRY WURDEMAN AND LENWARD TOUSSANT. 11:30 - 12:00 0.50 BOPSUR P DECOMP RD/BD TEST EQUIPMENT. 12:00 - 15:30 3.50 WHSUR P DECOMP RU DSM AND LUBRICATOR EXTENSION. -TEST TO 250 PSI LOW AND 3,500 PSI HIGH; TEST GOOD. -PULL TWC. 15:30 - 16:30 1.00 PULL P DECOMP 4-1/2"TUBING HANGER SPEARING AND LD OPERATION. -PJSM WITH ALL INVOLVED HANDS FOR TUBING HANGER SPEARING AND LD OPERATION. -MU SPEAR. -RIH AND ENGAGE SPEAR IN TUBING HANGER. -BOLDS. -UNSEAT TUBING HANGER WITH PU WT 150K. -PULL TUBING HANGER TO RIG FLOOR. -LD SPEAR AND TUBING HANGER. Printed 12/9/2010 2:04:20PM North America -ALASKA- BP Page 2 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:30 - 17:00 0.50 PULL P DECOMP UNANNOUNCED H2S AND RIG EVACUATION FULL MUSTER DRILL. -ALL RIG AND SERVICE COMPANY PERSONNEL ACCOUNTED FOR. -DISCUSSED FACT WITH ALL INVOLVED THAT S PAD IS AN H2S PAD AND THAT WE ARE TO STAY OUT OF THE WELL HOUSES. -WE ALSO DISCUSSED THE FACT THAT EVERYONE BESIDES THE DRILLER AND A DESIGNATED FLOOR HAND IMMEDIATELY EVACUATES THE RIG AND ASSEMBLES AT THE MUSTER POINT AND THAT THESE TWO INDIVIDUALS DON SCBA AND SECURE THE WELL BEFORE EVACUATING THE RIG. 17:00 - 19:00 2.00 PULL P DECOMP RU TO CIRCUI ATF -PUMP 25-BBL BARAKLEAN SOAP PILL. -CIRCULATE SURFACE TO SURFACE. -252 GPM,620 PSI,443 BBLS PUMPED. -MONITORED WELL FOR 20 MINUTES;WELL STATIC. -RD AND BD LINES. 19:00 - 00:00 5.00 PULL _P. DECOMP ,POH AND LD 4-1/2".12.6#.L-80 TUBING FROM 11,308'TO 6,389'. 9/8/2010 00:00 - 05:00 5.00 PULL P DECOMP POH AND LD 4-1/2", 12.6#, L-80 TUBING FROM 6,389'TO SURFACE. -RECOVERED 266 FULL JTS,49 SS BANDS,6 GLMS,1 SSSV AND ASSOCIATED CONTROL LINES,AND 1 CUT JT(18.73')WITH X NIPPLE. -TUBING CUT LEFT 1.8'STUMP LOOKING UP ABOVE PACKER. 05:00 - 06:00 1.00 BOPSUR P DECOMP MONITOR WELL;WELL STATIC. -RU BOPE TEST EQUIPMENT. -CLEAN AND CLEAR RIG FLOOR. 06:00 - 06:30 0.50 BOPSUR P DECOMP CONTINUE RU TEST EQUIPMENT AND PU 4" TEST JT. 06:30 - 08:30 2.00 BOPSUR P DECOMP TEST BOPE WITH 4"TEST JT. , -TEST ANNULAR PREVENTER TO 250 PSI LOW AND 2,500 PSI HIGH;TESTS GOOD. -TEST BOTTOM AND TOP PIPE RAMS TO 250 PSI LOW AND 3,500 PSI HIGH;TESTS GOOD. 08:30 - 09:00 0.50 FISH P DECOMP INSTALL WEAR RING. 09:00 - 12:00 3.00 FISH P DECOMP PU BAKER PACKER MILLING BHA TO 322'. -MILLING BHA CONSISTS OF: 12:00 - 14:30 2.50 FISH P DECOMP RIH WITH MILLING BHA ON 4"DP SINGLES FROM THE PIPESHED FROM 322'TO 3,200'. -FILL PIPE EVERY 30 STANDS. Printed 12/9/2010 2:04:20PM North America -ALASKA- BP Page 3 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 18:00 3.50 FISH N RREP 3,200.00 DECOMP EVACUATED RIG DUE TO H2S HIGH-LEVEL ALARM. -WHILE FILLING PIPE,WE ENCOUNTERED A HIGH-LEVEL 1-125 ALARM;MONITOR ABOVE SHALE SHAKERS REGISTERED 100 PPM. -DRILLER AND FLOOR HAND#1 DONNED SCBA AND SECURED THE WELL BY SHUTTING IT IN WHILE ALL OTHER RIG AND THIRD-PARTY PERSONNEL ON THE RIG AND ON THE PAD MUSTERED IN THE SHOP,OUR SAFE-BRIEFING AREA. -ON TWO OCCASIONS SEPARATED BY 30 MINUTES, DRILLER AND SECOND RIG HAND USED HAND-HELD MONITORS/RADIOS TO CHECK THE RIG FOR PRESENCE OF H2S; NO GAS WAS ENCOUNTERED. -REMOVE AND REPLACE MONITOR OVER SHALE SHAKERS AS A PRECAUTIONARY MEASURE AND RETEST/RECALIBRATE ALL PERMANENT MONITORS ON RIG. -SEE TRACTION 2010-IR-3612780 FOR FURTHER DETAILS. 18:00 - 18:30 0.50 FISH N RREP 3,200.00 DECOMP AFTER VERIFYING SIDP AND SICP WERE ZERO PSI,OPENED ANNULAR PREVENTER. -MONITORED WELL;WELL STATIC. -CBU--69 BBLS,250 GPM,490 PSI. -MONITORED WELL;WELL STATIC. 18:30 - 00:00 5.50 FISH P DECOMP RIH WITH MILLING BHA ON 4"DP SINGLES FROM THE PIPESHED FROM 3,200'TO 11,311'. -FILL PIPE EVERY 30 STANDS. -TAG 4-1/2"TUBING STUMP AT 11,311'. -PU WT 180K,SO WT 137K. -MW 8.5 PPG NACL BRINE IN AND OUT. 9/9/2010 00:00 - 01:00 1.00 FISH P DECOMP CIRCULATE SURFACE TO SURFACE. -PUMP 40-BBL EP MUD LUBE PILL. -377 BBLS,410 GPM,2,450 PSI. -SHUT-IN WELL AFTER CIRCULATING AND PUMPED THROUGH CHOKE TO FILL LINES AND POORBOY DEGASSER AND ENSURE ABILITY TO CIRCULATE/VERIFY VALVE ALIGNMENT BEFORE COMMENCING PACKER MILLING OPERATION. 01:00 - 06:00 5.00 FISH P DECOMP PACKER MILLING OPERATION. -170 GPM,470 PSI--OFF BOTTOM. -132 GPM,340 PSI--ON BOTTOM. -60 RPM. -4K TQ OFF,4-8K TQ ON. -PU WT 175K,SO WT 140K,ROT WT 160K. -10-15K WOB. -AFTER MILLING THROUGH PACKER ELEMENTS, EXPERIENCED 56-BBUHR LOSS RATE. -CONTINUE MILLING THROUGH BOTTOM SLIPS,BUT UNABLE TO VERIFY SLIPS RELEASE. Printed 12/9/2010 2:04:20PM ■orth America-ALASKA-BP Page 4 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ft 06:00 - 08:00 2.00 FISH P DECOMP BULLHEAD 75 BBLS DOWN IA TO FLUSH JUNK AROUND PACKER. -170 GPM,2,000 PSI ICP,2,020 PSI FCP. -MONITOR WELL;STATIC LOSS RATE 60 BBLS/HR. -RIH TO VERIFY THAT PACKER DID NOT MOVE DOWNHOLE WHILE BULLHEADING; PACKER DID NOT MOVE. 08:00 - 09:00 1.00 FISH P ■ DECOMP SPOT 45-BBL LCM PILL AT 11,318'. -160 GPM,440 PSI. -MONITOR WELL;WELL STATIC. 09:00 - 12:00 3.00 FISH P ■- DECOMP POH WITH PACKER MILLING BHA FROM 11,318'TO 3,800'. -PU WT 95K,SO WT 90K. 12:00 - 14:00 2.00 FISH P DECOMP POH WITH PACKER MILLING BHA FROM 3,800' TO 322'. -MONITOR WELL;LOSS RATE REDUCE TO 3-5 BBUHR. 14:00 - 15:30 1.50 FISH P DECOMP LD PACKER MILLING BHA FROM 322'TO SURFACE. -HOLD PJSM. -RB 3 STANDS OF DCS. -LD BOOT BASKETS;BASKETS BROUGHT UP PACKER SHAVINGS AND 1 SS BAND. -CLEAN AND CLEAR RIG FLOOR. 15:30 - 16:30 1.00 FISH P DECOMP PU PACKER FISH SPEAR BHA TO 319'. 16:30 - 20:00 3.50 FISH P DECOMP RIH WITH PACKER FISH SPEAR BHA FROM 319'TO 11,229'. -WASH DOWN AT 3 BPM,360 PSI. -TAG FISH AT 11,316'. -PU WT 180K,SO WT 143K. -ENGAGED FISH AND SAW 100 PSI INCREASE IN PUMP PRESSURE. -PU TO 225K AND JAR LOOSE. -VERIFY FISH ON WITH SAME PUMP PRESSURE AS AFTER ENGAGING INTO FISH. 20:00 - 21:00 1.00 FISH P DECOMP CBU AFTER DROPPING 1-7/8"DART. -OPEN PUMP-OUT SUB AT 1,900 PSI. -255 BBLS,8 BPM,1,360 PSI. -MONITOR WELL AFTER CBU;STATIC LOSS RATE 35 BBUHR. 21:00 - 00:00 3.00 FISH P ■- DECOMP F WITH PACKER FISH SPEAR BHA AND FISH FROM 11,318'TO 6,620'. -PU WT 122K. 9/10/2010 00:00 - 02:30 2.50 FISH P DECOMP POH WITH PACKER FISH SPEAR BHA FROM 6,620'TO 319'. -MONITOR WELL;STATIC LOSS RATE 40 BBUHR. 02:30 - 06:00 3.50 FISH P DECOMP LD PACKER FISH SPEAR BHA TO SURFACE. -PJSM. -LD BHA. -RU TO LD FISH. -PUNCH TUBING ON FISH UNDER XN NIPPLE; TAILPIPE FULL OF SCALE. -BREAK OUT AND LD FISH. -RECOVER BAKER S-3 PACKER BODY AND TAIL PIPE ASSEMBLY. -RD TUBULAR HANDLING EQUIPMENT. -CLEAN AND CLEAR RIG FLOOR. Printed 12/9/2010 2:04:20PM North America -ALASKA- BP Page 5 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419 00) Project:Prudhoe Bay Site:PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release. 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 07:30 1.50 FISH N WAIT DECOMP WAITING ON ORDERS FROM ANCHORAGE LEADERSHIP. -SERVICE TOP DRIVE. _ 07:30 - 08:30 1.00 CLEAN C DECOMP PU 7"CLEAN-OUT BHA TO 318'. 08:30 - 12:00 3.50 CLEAN C DECOMP RIH WITH 7"CLEAN-OUT BHA FROM 318'TO 10,475'. -FILL PIPE EVERY 30 STANDS. -PU WT 172K,SO WT 140K. 12:00 - 12:30 0.50 CLEAN C DECOMP RIH WITH 7"CLEAN-OUT ASSEMBLY FROM 10,475'TO 11,227'. -BREAK CIRCULATION AND ESTABLISH DRILLING PARAMETERS/SPRS AT 11,227'. -WASH DOWN FROM 11,227'TO 11,365';TAG SCALE AT 11,365'. -5 BPM,665 PSI. 80 RPM. 3.5K TQ. -MW 8.4 PPG IN AND OUT. -PU WT 175K,SO WT 145K,ROT WT 160K. 12:30 - 22:00 9.50 CLEAN C DECOMP DRILL SCALE FROM 11.365'TO 11,906'. DRILLING BREAK AT 11,906';SUSPECT THAT WE STARTED TO DRILL BOTTOM PACKER AND DECIDED TO TRIP FOR PACKER MILLING BHA. -5 BPM,670 PSI. -80 RPM. -3-5KTQ. -5-7K WOB. -PU WT 180K,SO WT 147K,ROT WT 160K. -UTILIZE HI-VIS SWEEPS;SWEEPS BRINGING BACK HEAVY SCALE AND PARAFFIN. -MW 8.5 PPG IN AND OUT. -MONITOR WELL BEFORE POH;30 BBUHR STATIC LOSS RATE. 22:00 - 00:00 2.00 CLEAN C DECOMP CIRCULATE 20-BBL HI-VIS SWEEP SURFACE TO SURFACE AND SPOT 40-BBL LCM PILL AFTER SEEING SWEEP BACK AT SURFACE. -577 BBLS,8 BPM,1,335 PSI. -SEE HEAVY SCALE WITH SWEEP. 9/11/2010 00:00 - 05:00 5.00 CLEAN C DECOMP POH WITH 7"CLEAN-OUT BHA FROM 11,906' TO 318'. 05:00 - 05:30 0.50 CLEAN C DECOMP LD 7"CLEAN-OUT BHA FROM 318'TO SURFACE. 05:30 - 06:30 1.00 FISH P DECOMP PU BOTTOM PACKER MILLING BHA TO 359'. 06:30 - 11:00 4.50 FISH P DECOMP RIH WITH BOTTOM PACKER MILLING BHA FROM 359'TO 11,644'. -BREAK CIRCULATION EVERY 3,000'. 11:00 - 12:00 1.00 FISH P DECOMP CUT AND SLIP 126'OF DRILLING LINE. -SERVICE CROWN,BLOCKS,AND DRAWWORKS. Printed 12/9/2010 2:04:20PM North America -ALASKA- BP Page6 of 28fl` Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 13:00 1.00 FISH P DECOMP BREAK CIRCULATION AND ESTABLISH PARAMETERS. -CIRCULATE SURFACE TO SURFACE;448 BBLS,245 GPM,745 PSI. -SPR @ 11,644'/8,762'TVD #1 @ 2 BPM= 160 PSI/ 3 BPM=285 PSI, #2 @ 2 BPM= 160 PSI/3 BPM=280 PSI PU WT=185K/SO WT= 145K/ROT WT= 162K. MW 8.4 PPG IN AND OUT. 13:00 - 17:30 4.50 FISH P DECOMP REAM IN THE HOLE AND TAG TOP OF BOTTOM PACKER AT 11,906'MD. MILL PACKER -4 BPM=560 PSI ON,445 PSI OFF. -60 RPM -5.5K TQ OFF; 8-10.5K TQ ON. -PU WT= 185K/SOWT=145K/ROTWT= 162K. -PUMP 2 HIGH-VIS(100+SEC)SWEEPS DURING MILLING OPS AND 1 EP MUD LUBE PILL. MILL FROM 11,906'-11.912':AT 11.912'MD. STALLED PIPE AND PU PULLING 25K OVER; PU WT INCREASED 10K,SUSPECT TAIL PIPE WEDGED INTO WASHOVER PIPE. -PICKUP ABOVE UPPER LATERAL TO 11,860' MD. 17:30 - 18:00 0.50 FISH P DECOMP BULLHEAD 103 BBLS AT 6 BPM. -ICP AT 6 BPM=2,060 PSI. -FCP AT 6 BPM=1,920 PSI. FLOW CHECK WELL;WELL STATIC--NO FLOW. -OPEN WELL,LOSING FLUID AT 15 BPH. 18:00 - 19:30 1.50 FISH P - DECOMP CBU. -335 BBLS,6 BPM,800 PSI. -LOSSES INCREASED TO 40 BPH. -MONITOR WELL,LOSING FLUID,MW 8.4 PPG IN/OUT 19:30 - 00:00 4.50 FISH P DECOMP POH WITH BOTTOM PACKER MILLING BHA FROM 11,860'TO 3,650'. -LOSS RATE AT 30-40 BPH. 9/12/2010 00:00 - 03:00 3.00 FISH P DECOMP POH WITH BOTTOM PACKER MILL FROM 3,650'TO 350'. -15K OVERPULL AT 2,417'. 03:00 - 04:30 1.50 FISH P DECOMP LD BOTTOM PACKER MILL BHA FROM 350'. -NO FISH, BUT BOTTOM PACKER PIECES STUCK INSIDE OF WASH PIPE. 04:30 - 05:30 1.00 FISH P DECOMP CLEAN TAR,SCALE,AND PACKER REMNANTS FROM BOOT BASKETS. -CLEAN AND CLEAR RIG FLOOR. 05:30 - 06:30 1.00 FISH C DECOMP PU/MU BOTTOM PACKER SPEAR BHA TO 319'. 06:30 - 11:30 5.00 FISH C DECOMP RIH WITH BOTTOM PACKER SPEAR BHA FROM 319'TO 11,875'. -PU WT 180K,SO WT 145K. 11:30 - 12:30 1.00 FISH C DECOMP CBU. -270 BBLS,330 GPM,1,950 PSI. Printed 12/9/2010 2:04:20PM North America -ALASKA- BP Page 7 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 13:30 1.00 FISH C DECOMP WASH DOWN FROM 11,875'TO 11,910'. -3.5 BPM,450 PSI. -TAG FISH AT 11.910';S,EE 150 PSI INCREASE. -PU AND SEE 35K OVERPULL. -JAR FISH FREE;HAVE POSITIVE INDICATION FISH ON WITH HIGHER PUMP PRESSURE. 13:30 - 14:30 1.00 FISH C DECOMP PU TO 11,850'AND DROP DART TO OPEN PUMP-OUT SUB. -PUMP-OUT SUB OPENED WITH 1,965 PSI. -CIRCULATE 375 BBLS,8 BPM,1,450 PSI. -MONITOR WELL;SOME GAS BREAK-OUT IN BELL NIPPLE;NO INCREASE IN FLOW. 14:30 - 15:30 1.00 FISH C DECOMP ATTEMPT TO BULLHEAD 104 BBLS TO FLUSH AROUND FISH;UNSUCCESSFUL. -PRESSURE UP TO 2,000 PSI AND HELD WITHOUT BLEED OFF. -BLED OFF AND PUSHED FISH TO 11,905'. -MONITOR WELL;40 BPH STATIC LOSS RATE. -WORK PIPE AND PU TO 11,850'. -ATTEMPT A SECOND TIME TO BULLHEAD; PRESSURED UP AGAIN TO 2,000 PSI AND HELD WITHOUT BLEED OFF. -BLED OFF AND RIH TO 11,906'. 15:30 - 16:00 0.50 FISH C DECOMP CONSULT WITH ANCHORAGE RIG TEAM. -MONITOR WELL;42 BPH STATIC LOSS RATE. 16:00 - 17:00 1.00 FISH C DECOMP RIH TO RELEASE FROM BOTTOM PACKER. -CHASE PACKER TO 11,920'WITH SO WT 50K. -10 TURNS TO RIGHT;WORKED TQ DOWN; FISH RELEASED. 17:00 - 18:00 1.00 FISH C DECOMP POH WITH BOTTOM PACKER SPEAR BHA TO 11,848'AND CBU. -6 BPM,830 PSI. -SPOT HI-VIS PILL AT 11,848'. -MONITOR WELL;38 BPH STATIC LOSS RATE. -8.4 PPG MW IN AND OUT. 18:00 - 23:00 5.00 FISH C DECOMP POH WITH BOTTOM PACKER SPEAR BHA FROM 11,848'TO 319'. -PU WT 192K,SO WT 140K. -MONITOR WELL;40 BPH STATIC LOSS RATE. -8.4 PPG MW IN AND OUT. 23:00 - 00:00 1.00 FISH C DECOMP LD BOTTOM PACKER SPEAR BHA FROM 319'. 9/13/2010 00:00 - 01:30 1.50 FISH C ._ DECOMP PU/MU BOTTOM PACKER MILLING BHA TO 359'. 01:30 - 05:30 4.00 FISH C -_ DECOMP RIH WITH BOTTOM PACKER MILLING BHA TO 11,906'. 05:30 - 07:00 1.50 FISH C DECOMP ESTABLISH PARAMETERS AND CIRCULATE SURFACE TO SURFACE AT 11,906'. -397 BBLS,330 GPM,1,287 PSI. -PU WT 185K,SO WT 145K. -8.4 PPG MW IN AND OUT. Printed 12/9/2010 2:04:20PM North America -ALASKA- BP Page 8 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 11:00 4.00 FISH C DECOMP MILL BOTTOM PACKER. II -RIH AND TAG TOP OF FISH AT 11,916'. -5K TQ OFF,8-11K TQ ON. -168 GPM,450 PSI. -PU WT 185K,SO WT 140K, ROT WT 160K. -MW 8.4 PPG IN AND OUT. -MILLED DOWN TO 11,918'AND THEN UNABLE TO MILL. ATTEMPT TO WEDGE FISH IN BURN SHOE; UNSUCCESSFUL. -ATTEMPT TO MILL DOWN AGAIN; UNSUCCESSFUL. 11:00 - 16:00 5.00 FISH C DECOMP POH WITH BOTTOM PACKER MILL FROM 11,918'TO 359'. -MONITOR WELL;28 BPH STATIC LOSS RATE. 16:00 - 17:30 1.50 FISH C DECOMP LD BOTTOM PACKER MILL BHA FROM 359'. -RECOVERED HEAVY PARAFFIN AND PACKER SHAVINGS FROM BOOT BASKETS. -CLEAN AND CLEAR RIG FLOOR. 17:30 - 18:30 1.00 FISH C DECOMP PU PACKER SPEAR BHA TO 319'. 18:30 - 22:30 4.00 FISH C DECOMP RIH WITH PACKER SPEAR BHA FROM 319'TO 11,875'. -PU WT 185K,SO WT 145K. 22:30 - 00:00 1.50 FISH C DECOMP CIRCULATE. -PUMP 100-BBL,140 DEGREE F BARAKLEAN SOAP PILL;LET SOAK FOR 30 MINUTES. -FLUSH PIPE WITH 155-BBL 8.4 PPG NACL BRINE. -6 BPM,1,160 PSI. 9/14/2010 00:00 - 00:30 0.50 FISH C DECOMP CIRCULATE BARAKLEAN SOAP PILL OUT OF THE HOLE. -155 BBLS,306 GPM,1,640 PSI. 00:30 - 02:00 1.50 FISH C DECOMP RIH FROM 11,875'TO 11,916'. -ENGAGE BOTTOM PACKER FISH;POSITIVE PRESSURE INDICATION THAT FISH WAS ON. -PUSH FISH TO BOTTOM AT 12,209' -PU WT 185K,SO WT 145K. 02:00 - 02:30 0.50 FISH C DECOMP POH WITH BOTTOM PACKER FISH FROM 12,209'TO 11,850'. 02:30 - 03:00 0.50 FISH C DECOMP CLOSE ANNULAR PREVENTER AND BULLHEAD DOWN IA. -75 BBLS,5 BPM,2,015 PSI. 03:00 - 04:30 1.50 FISH C DECOMP CBU. -DROP DART AND OPEN PUMP-OUT SUB AT 1,896 PSI. -330 GPM,1,220 PSI. -MONITOR WELL;35 BPH STATIC LOSS RATE. 04:30 - 10:30 6.00 FISH C DECOMP POH WITH PACKER SPEAR BHA FROM 11.79 ' TO 319'. -PUWT160K,SOWT120K. 10:30 - 11:30 1.00 FISH C DECOMP LD PACKER SPEAR BHA AND FISH FROM 319'. -RECOVERED MILLED UP BAKER ML PACKER REMNANTS,4-1/2"XO PUP JT,4-1/2"PUP JT, 4-1/2"XN NIPPLE,4-1/2"PUP JT,AND 4-1/2" WLEG. 11:30 - 12:00 0.50 FISH C DECOMP CLEAN AND CLEAR RIG FLOOR. Printed 12/9/2010 2:04:20PM Vorth America -ALASKA- BP Page 9 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Ac tive Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 13:00 1.00 BOPSUR P DECOMP PULL WEAR BUSHING AND SET TEST PLUG. -RU TEST EQUIPMENT. 13:00 - 17:30 4.50 BOPSUR P DECOMP TEST BOPE AND CHOKE MANIFOLD TO 250 9' k' PSI LOW AND 3,500 PSI HIGH WITH 4"AND 10 4-1/2"TEST JOINTS. TEST ANNULAR PREVENTER TO 250 PSI LOW AND 2,500 PSI HIGH WITH 4"TEST JOINT. -ALL TESTS GOOD. AOGCC REP CHUCK SCHEVE WAIVED WITNESS TO THE TEST ON 09/12/2010. TEST WITNESSED BY BP WSL DICK MASKELL AND NAD TOOLPUSHER CHRIS WEAVER. 17:30 - 18:30 1.00 BOPSUR P DECOMP RD TEST EQUIPMENT AND LINES,PULL TEST PLUG,AND INSTALL WEAR BUSHING. 18:30 - 22:00 3.50 CLEAN P DECOMP ,PU 7"CLEAN-OUT AND SCRAPER BHA TO , 444'. -HOT SHOT OUT NECESSARY CROSSOVERS TO RUN 7"CASING SCRAPER TO 100'ABOVE 7"CASING WINDOW. -SERVICE TOP DRIVE. -MONITOR WELL;26 BPH STATIC LOSS RATE. 22:00 - 00:00 2.00 CLEAN P DECOMP RIH WITH 7"CLEAN-OUT AND SCRAPER BHA FROM 444'TO 5,334'. -PU WT 95K,SO WT 90K. 9/15/2010 00:00 - 04:30 4.50 CLEAN P DECOMP RIH AND DRILL DOWN WITH 7" CLEAN-OUT/SCRAPER BHA TO 11,939'. -225 GPM,815 PSI. -45 RPM. -6.5K TQ ON. -DRILLING COMMENCED AT 11,934'AND WAS VERY SLOW TO 11,939';ALL INDICATIONS POINT TO DRILLING MORE HEAVY SCALE. -AFTER FIRST BU,SHUT DOWN PUMPS AND / SAW GAS BREAKING OUT VIGOROUSLY AT SURFACE;MONITORED WELL;WELL WAS STILL LOSING FLUID, BUT VIGOROUS GAS BREAK-OUT DID NOT SUBSIDE; DECISION MADE BY NIGHT WSL AND TOURPUSHER TO SHUT IN THE WELL;PROPER NOTIFICATIONS MADE(TRACTION 2010-IR-3618028). -8.4 PPG MW IN AND OUT. 04:30 - 06:30 2.00 CLEAN N DPRB 11,939.00 DECOMP CBU THROUGH SUPER CHOKE TO POOR-BOY DEGASSER. -SICP AND SIDPP 0 PSI. -3 BPM,280 PSI(SAME AS SPR TAKEN BEFORE SHUTTING WELL IN). -AFTER CIRCULATION,CHECKED FOR FLOW FROM CHOKE;THERE WAS NONE. -OPENED ANNULAR PREVENTER. 06:30 - 08:00 1.50 CLEAN P DECOMP DISPLACE WELL TO CLEAN FRESHWATER. -280 GPM,1,200 PSI. -WHILE CIRCULATING,ABLE TO GET PAST 11,939'. -MW 8.3+PPG IN AND OUT. 08:00 - 09:00 1.00 CLEAN P DECOMP RIH WITH 7"CLEAN-OUT BHA FROM 11,939' TO 12,229'. -PUWT185K,SOWT145K. Printed 12/9/2010 2:04:20PM Operation Sum Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 11:00 2.00 CLEAN P DECOMP PUMP 290-BBL,140 DEGREE F BARAKLEAN PILL. -LET SOAK 30 MINUTES. 11:00 - 12:30 1.50 CLEAN P DECOMP CIRCULATE OUT BARAKLEAN PILL. -225 GPM,883 PSI. -MONITOR WELL;26 BPH STATIC LOSS RATE. MW 8.3 PPG IN AND OUT. 12:30 - 19:00 6.50 CLEAN P DECOMP POH WITH 7"CLEAN-OUT BHA FROM 12,229' TO 446'. -35K OVERPULL AND SWABBING AT 11,735'. -WORK TIGHT SPOT 3X. -INTERMITTANT SWABBING THROUGHOUT TRIP. -EXTREMELY HEAVY PARAFFIN ON TOOL JTS AND TUBULARS FROM LAST 6 STANDS OF 4"DP THROUGH LD BHA. 19:00 - 21:30 2.50 CLEAN P DECOMP I D 7"CLEAN-OUT BHA FROM 446' -MONITOR WELL;25 BPH STATIC LOSS RATE. -FUNCTION TEST RAMS. -CLEAN AND CLEAR RIG FLOOR. -EMPTY BOOT BASKETS. • 21:30 - 22:30 1.00 BOPSUR P DECOMP PULL WEAR BUSHING,RU TEST EQUIPMENT, AND SET TEST PLUG. 22:30 - 23:00 0.50 BOPSUR P DECOMP TEST ANNULAR PREVENTER WITH 4"TEST JT. -TEST TO 250 PSI LOW AND 2,500 PSI HIGH; TEST GOOD. -TEST ACCOMPLISHED DUE TO USING ANNULAR PREVENTER IN WELL CONTROL SITUATION THIS MORNING. -AOGCC REP BOB NOBLE WAIVED WITNESS ON 15 SEP 10. 23:00 - 23:30 0.50 BOPSUR P DECOMP RD TEST EQUIPMENT, PULL TEST PLUG,AND SET WEAR BUSHING. -TEST PLUG COMPLETELY COVERED WITH HEAVY PARAFFIN. 23:30 - 00:00 0.50 CLEAN N DPRB 12,229.00 DECOMP PU 2ND 7"CLEAN-OUT BHA TO 50'. -38 BPH STATIC LOSS RATE. -MW 8.3 PPG. 9/16/2010 00:00 - 01:00 1.00 CLEAN N DPRB 12,229.00 DECOMP PU 2ND 7"CLEAN-OUT BHA FROM 50'TO 435'. 01:00 - 02:00 1.00 CLEAN N DPRB 12,229.00 DECOMP RIH WITH 2ND 7"CLEAN-OUT BHA FROM 435' TO 3,145'. 02:00 - 02:30 0.50 CLEAN P DECOMP SLIP AND CUT 150'OF DRILLING LINE. 02:30 - 05:30 3.00 CLEAN N DPRB 12,229.00 DECOMP RIH WITH 2ND 7"CLEAN-OUT BHA FROM 3,145'TO 11,100'. -FILL EVERY 3,000'UNTIL 11,100'. 05:30 - 08:00 2.50 CLEAN N DPRB 12,229.00 DECOMP WASH TO BOTTOM FROM 11,100'TO 12,223'. -PU WT 185K,SO WT 145K,ROT WT 160K. -3 BPM,280 PSI. -60 RPM. 08:00 - 08:30 0.50 CLEAN N DPRB 12,229.00 DECOMP CBU. -215 GPM,760 PSI. 08:30 - 10:30 2.00 CLEAN N DPRB 12,229.00 DECOMP PUMP 25-BBL, HI-VIS SPACER FOLLOWED BY A 58-BBL,90 DEGREE F DIESEUBARASCRUB PILL. -CHASE DOWN 4"DP WITH 142 BBLS OF FRESHWATER. Printed 12/9/2010 2:04:20PM forth America-ALASKA- BP Page 11 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Firs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:30 - 11:30 1.00 CLEAN N DPRB 12,229.00 DECOMP CLOSE TOP PIPE RAMS AND LINE UP TO BULLHEAD DOWN IA. -BULLHEAD 600 BBLS,140 DEGREE F FRESHWATER. -340 GPM,2,450 PSI. 11:30 - 12:30 1.00 CLEAN N DPRB 12,229.00 DECOMP SHUT DOWN PUMPS AND ALLOW PRESSURE TO STABILIZE. -MONITOR WELL;0 PSI SHUT-IN PRESSURE. 12:30 - 14:00 1.50 CLEAN N RREP 12,229.00 DECOMP CHANGE OUT KOOMEY HYDRAULIC LINE DUE TO HOSE FAILURE. 14:00 - 17:30 3.50 CLEAN N DPRB 122,229.00 DECOMP OPEN SUPER CHOKE AND CIRCULATE 1.5 BUS THROUGH CHOKE MANIFOLD AND POOR-BOY DEGASSER. -508 BBLS,3 BPM,260 PSI. -FLOW CHECK;NO FLOW. -OPEN TOP PIPE RAMS. -MONITOR WELL;28 BPH STATIC LOSS RATE. -MW 8.3 PPG IN AND OUT. 17:30 - 19:00 1.50 CLEAN N DPRB 12,229.00 DECOMP PUMP 30-BBL, HI-VIS SWEEP AND CIRCULATE IT SURFACE TO SURFACE. -250 GPM,970 PSI. -PILL BROUGHT NOTHING BACK TO SURFACE. -MONITOR WELL FOR 15 MINUTES;27 BPH STATIC LOSS RATE. -8.3 PPG MW IN AND OUT. 19:00 - 00:00 5.00 CLEAN N DPRB 12,229.00 DECOMP POH WITH 2ND 7"CLEAN-OUT BHA FROM 12,223'TO 1,187'. -PU WT 185K,SO WT 140K. -30K OVERPULL AT DEPTHS OF 11,862', 11,785',11,754',11,700',AND 11,690'. -WORKED ALL TIGHT AREAS. 9/17/2010 00:00 - 01:30 1.50 CLEAN N DPRB 12,229.00 DECOMP LD 2ND 7"CLEAN-OUT BHA TO SURFACE. -"CLEAN AS A WHISTLE"--NO PARAFFIN NOTED. 01:30 - 02:30 1.00 CLEAN N DPRB 12,229.00 DECOMP CLEAN AND CLEAR RIG FLOOR. -LD ALL BAKER FISHING/CLEAN-OUT TOOLS DOWN BEAVALATOR. 02:30 - 03:00 0.50 PXA P DECOMP PU 7"HES CEMENT RETAINER. 03:00 - 08:00 5.00 PXA P DECOMP RIH WITH 7"CEMENT RETAINER ON 12 EA 4" DP SINGLES FROM THE PIPESHED AND STANDS FROM THE DERRICK TO 12,180'. 08:00 - 10:30 2.50 PXA P DECOMP RIH AND SET 7"CEMENT RETAINER ON 6 DEPTH AT 12.190'. -ESTABLISH CIRCULATING PRESSURES AT 4 BPM,370 PSI UNSTUNG,1,393 PSI STUNG IN. -RU TO SQUEEZE CEMENT. -SET DOWN 20K ON RETAINER. Printed 12/9/2010 2:04:20PM JOtth�r 1 I ICcX ALA SKA�RC ag 2. 8 .N'T .. r zgr . Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3 00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:30 - 12:30 2.00 PXA P DECOMP LOWER IVISHAK LATERAL SQUEEZE CEMENT JOB. -SWS CEMENTERS PUMP 10 BBLS OF 12 PPG MUDPUSH II. -PRESSURE TEST SURFACE LINES TO 4,000 PSI;TEST GOOD. -SWS CEMENTERS PUMP 163 BBLS 15.8 PPG CLASS G CEMENT. -854 SKS;1.16 CU FT/SK YIELD. -4 BPM,1,280 PSI. -SWAP OVER TO RIG PUMPS AND DISPLACE WITH 129 BBLS OF FRESHWATER AT 4 BPM, ICP 1,300 PSI, FCP 2,330 PSI. CEMENT IN PLACE AT 1213 HRS. -MW IN AND OUT 8.3 PPG. 12:30 - 13:30 1.00 PXA P DECOMP CBU. -UNSTING FROM CEMENT RETAINER,DROP 5"FOAM DRILL PIPE WIPER BALL,AND MU TOP DRIVE TO 4"DP. RD CEMENT LINES. -460 BBLS,8 BPM,1,335 PSI. -NO CEMENT SEEN AT SURFACE. -8.3 PPG MW IN AND OUT. 13:30 - 14:00 0.50 PXA P DECOMP MONITOR WELL. 1 -8 BPH STATIC LOSS RATE. -BLOW DOWN TOP DRIVE. 14:00 - 19:00 5.00 PXA P DECOMP POH WITH CEMENT RETAINER RUNNING I TOOL FROM 12,185'TO SURFACE. 19:00 - 20:00 1.00 PERF P DECOMP MU PERF GUN, FIRING HEAD,AND XOS. -MONITOR WELL;6 BPH STATIC LOSS RATE. 20:00 - 00:00 4.00 PERF P DECOMP RIH WITH PERF GUN ON 4"DP STANDS TO 9,623'. 9/18/2010 00:00 - 01:30 1.50 PERF P- DECOMP RIH WITH PERF GUN ON 4"DP STANDS FROM 9,623'TO 12,190'. -TAG UP ON CEMENT RETAINER AND PU 5' TO 12,185'. -PU WT 180K,SO WT 145K. 01:30 - 02:00 0.50 PERF P DECOMP PERFORATE 7"CASING FROM 12,175'TO 12,185'. -4.5",5 SPF,72 DEGREE PHASING,4505 PJ GUN. -ESTABLISH CIRCULATING RATE AT 3 BPM, 435 PSI. -DROP BALL AND PRESSURE UP TO 1,985 PSI. -FIRE GUN AFTER PRESSURING UP AND FEEL GOOD SURFACE INDICATION OF GUNS FIRING. -POH TO ABOVE PERFS AT 12,150'. -MONITOR WELL;5 BPH STATIC LOSS RATE. 02:00 - 03:00 1.00 PERF P DECOMP CBU. -210 GPM,1,089 PSI. -MONITOR WELL;5 BPH STATIC LOSS RATE. 03:00 - 03:30 0.50 PERF P DECOMP SLIP AND CUT 79'OF DRILLING LINE. 03:30 - 08:30 5.00 PERF P DECOMP POH WITH PERF GUN FROM 12,150'TO 20'. -PU WT 180K,SO WT 145K. -8.3 PPG MW IN AND OUT. 08:30 - 09:00 0.50 PERF P DECOMP LD FIRED PERF GUNS. -ALL SHOTS FIRED. -CLEAN AND CLEAR RIG FLOOR. Printed 12/9/2010 2:04:20PM 4orth America -ALASKA- BP Page 13 01 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 11:00 2.00 PXA P DECOMP RU E-LINE TO RIH WITH CCL AND 7"CEMENT RETAINER. 11:00 - 13:30 2.50 PXA P DECOMP RIH WITH E-LINE/CCL AND 7"CEMENT RETAINER. SET CEMENT RETAINER AT 12,029'ELM. 13:30 - 15:30 2.00 PXA P DECOMP`POH E-LINE FROM 12,029'. 15:30 - 16:30 1.00 PXA P DECOMP RD E-LINE. 16:30 - 20:00 3.50 PXA P DECOMP MU HES 7"CEMENT RETAINER STINGER AND RIH ON 4"DP STANDS TO 12,012'. -PU WT 180K,SO WT 142K. 20:00 - 22:00 2.00 PXA P DECOMP ATTEMPTED 7"X OH ANNULUS CEMENT SQUEEZE. -RU CEMENT LINES. -ESTABLISH CIRCULATION RATES;2 BPM, 128 PSI,3 RETURNS;4 BPM,450 PSI,24 RETURNS;AND 6 BPM,962 PSI,37 RETURNS. -STING INTO 7"CEMENT RETAINER AT 12,021'WITH 15K DOWN WEIGHT AND CONFIRM WITH PUMP PRESSURE BEFORE AND AFTER STINGING IN. -STING IN AND ATTEMPT TO ESTABLISH INJECTION RATES X 3; PRESSURED UP TO 2,450 PSI WITH 1.5 BBLS,3,080 PSI WITH 1.9 BBLS,AND 2,600 PSI WITH 1.8 BBLS RESPECTIVELY;EACH ATTEMPT,PRESSURE HELD AND NO BREAKDOWN WAS EVIDENT. -AFTER EACH INJECTION ATTEMPT, UNSTING AND CIRCULATE AT PREVIOUSLY ESTABLISHED CIRCULATION RATES EACH TIME. -TAGGED UP ON RETAINER AND STACKED OUT UPON STINGING IN EXACTLY THE SAME MANNER EACH TIME. -THERE WERE NO RETURNS NOTED IN STACK WHILE STUNG IN AND ATTEMPTING TO INJECT. 22:00 - 23:00 1.00 PXA P DECOMP BLEED PRESSURE AND CONSULT WITH TOWN ENGINEER FOR WAY AHEAD. -MONITOR WELL;5.5 BBUHR STATIC LOSS RATE. -8.3 PPG MW IN AND OUT. 23:00 - 00:00 1.00 PXA P DECOMP UNSTING FROM 7"CEMENT RETAINER AT 12,021'AND PU TO 11,945'. -RD AND BD CEMENT LINES. 9/19/2010 00:00 - 02:00 2.00 PXA P DECOMP DUMP 50'OF 20/40 MESH SAND ON 7" CEMENT RETAINER SET AT 12,021'. -DUMP IN HOPPER AT 5-7 MIN/50#SACK AND MIX WITH WATER IN HOPPER TO FORM A SLURRY. 02:00 - 02:30 0.50 PXA P DECOMP PU TO 11,915'AND LET SAND DROP IN 4"DP. 02:30 - 03:30 1.00 PXA P DECOMP CIRCULATE 1 4"DP VOLUME TO CLEAR SAND FROM 4"DP ABOVE 7"CASING WINDOW AT 11,861'. -125 BBLS,2 BPM,115 PSI. 03:30 - 07:30 4.00 PXA P DECOMP POH WITH 7"CEMENT RETAINER STINGER FROM 11,861'TO SURFACE. 07:30 - 08:30 1.00 PXA P DECOMP MU 7"CEMENT RETAINER. 08:30 - 09:00 0.50 PXA P DECOMP RIH WITH 7"CEMENT RETAINER TO 2,921'. Printed 12/9/2010 2:04:20PM forth America -ALASKA BP Page 14 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual©64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 16:00 7.00 PXA N MISC 2,921.00 DECOMP FORCE MAJEURE EVACUATION WITH CREWS. -SHUT IN WELL USING ANNULAR PREVENTER. -SECURED RIG AND SHUT OFF ALL POWER. -EVACUATED RIG AND S-PAD TO CC-2A AND THEN KUSKOKWIM CAMP DUE TO GAS LEAK AT SKID 57 ON S PAD. -WAITED FOR PERMISSION FROM PAD OPERATOR TO RETURN TO PAD. 16:00 - 17:30 1.50 PXA N MISC 2,921.00 DECOMP FORCE MAJEURE EVACUATION WITH CREWS. -RETURNED TO RIG. -CHECK RIG AND ALL OUT BUILDINGS FOR GAS WITH AIR PACKS AND GAS MONITORS. -RESTORE RIG POWER;ALL STEAM,AIR, AND HYDRAULICS RESTORED. -CHECK SIDPP AND SICP;BOTH ZERO PRESSURE. OPEN WELL AND FILL WITH 31 BBLS OF 8.3 PPG WATER. 17:30 - 22:00 4.50 PXA P DECOMP RIH WITH 7"CEMENT RETAINER ON 4"DP STANDS FROM 2,921'TO 11,692'. SET RETAINER AT 11,692'. -UNSTING. 22:00 - 23:00 1.00 PXA P DECOMP RU CEMENT LINES. 23:00 - 23:30 0.50 PXA P DECOMP PRESSURE TEST 7"CEMENT RETAINER. -TEST TO 3,000 PSI FOR 20 MINUTES WHILE CONDUCTING PJSM FOR CEMENT JOB;TEST GOOD--ROCK SOLID. -USED TOP PIPE RAMS FOR TEST. 23:30 - 00:00 0.50 PXA P DECOMP ESTABLISH CIRCULATION RATES FOR CEMENT JOB. -2 BPM,140 PSI. -4 BPM,463 PSI. -6 BPM,965 PSI. -8.3 PPG MW IN AND OUT. 9/20/2010 00:00 - 02:00 2.00 PXA P DECOMP STING INTO 7"CEMENT RETAINER AND TRY TO ESTABLISH INJECTION RATE. -PUMP AT 2 BPM AND PRESSURED UP TO 2,000 PSI AND HELD. -ATTEMPTED SEVERAL TIMES,WORKING IN AND OUT OF THE STINGER,TO ESTABLISH INJECTION RATE, BUT PRESSURED UP AND HELD EACH TIME. -HES PACKER HAND CONSULTED WITH THEIR TOWN AND SOME DIFFERENT STRATEGIES WERE DISCUSSED TO BE ABLE TO PUMP. -FINALLY WASHED DOWN AT 1/2 BPM WHILE STINGING INTO RETAINER AND WERE ABLE TO PUMP WITHOUT IMMMEDIATE PRESSURE SPIKE. -INJECTION RATES OF 2 BPM,890 PSI AND 4 BPM,1,450 PSI. Printed 12/9/2010 2:04:20PM 4orth America -ALASKA- BP Page 15 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 04:00 2.00 PXA P DECOMP UPPER SAG RIVER LATERAL CEMENT SOUFEZE -PUMPED 14 BBLS 12 PPG MUD PUSH II AT 4 BPM. -PRESSURE TESTED SURFACE LINES TO 4,000 PSI;TEST GOOD. -PUMPED 262 BBLS 15,8 PPG CLASS G CEMENT AT 4 BPM. -1,244 SKS,1.16 CU FT/SK YIELD. -DISPLACED WITH 124 BBLS OF 8.3 PPG WATER. -ICP 930 PSI AT 4 BPM,FCP 2,575 PSI AT 4 BPM. -CEMENT IN PLACE AT 0344 HRS. 04:00 - 05:30 1.50 PXA P DECOMP PU TO 11,660', BREAK OFF CEMENT HEAD, DROP FOAM BALL,AND MU TOP DRIVE. -CIRCULATE SURFACE TO SURFACE. -330 GPM,1,281 PSI. -NO CEMENT SEEN AT SURFACE. -MONITOR WELL;WELL STATIC. 05:30 - 09:00 3.50 PXA P DECOMP POH WITH 7"CEMENT RETAINER STINGER FROM 11,660'TO SURFACE. 09:00 - 09:30 0.50 PXA P DECOMP CLEAN AND CLEAR RIG FLOOR. 09:30 - 11:00 1.50 CLEAN P DECOMP PU CEMENT CLEAN-OUT BHA TO 308'. 11:00 - 14:00 3.00 CLEAN P DECOMP RIH WITH CEMENT CLEAN-OUT BHA FROM 308'TO 7,458'. 14:00 - 16:00 2.00 CLEAN P DECOMP BOP DRILLS WITH DAVE GUESS'CREW. -D1 (KICK WHILE TRIPPING) -D5(STRIPPING) -D6(WELL KILL) -ALL CREW MEMBERS REFAMILIARIZED WITH SUPER CHOKE OPERATION. 16:00 - 17:30 1.50 CLEAN P DECOMP RIH WITH CEMENT CLEAN-OUT BHA FROM 7,458'TO 11,313'. -PU WT 180K,SO WT 145K. 17:30 - 19:00 1.50 WHSUR P DECOMP MU AND RIH WITH CEMENT CLEAN-OUT BHA ON RTTS TO 35'. -BIT DEPTH 11,360'. -LD RTTS RUNNING TOOL. -PRESSURE TEST RTTS TO 3.500 PSI FOR 10 MINUTES;TEST GOOD. 19:00 - 22:00 3.00 WHSUR P DECOMP 7"PACK-OFF CHANGE OUT. -PULL WEAR BUSHING -BOLDS. -PULL 7"PACK-OFF. -INSTALL NEW 7"PACK-OFF. -RILDS. -PRESSURE TEST PACK-OFF TO 500 PSI LOW FOR 5 MINUTES AND 5,000 PSI HIGH FOR 30 MINUTES;TESTS GOOD. 22:00 - 22:30 0.50 BOPSUR P DECOMP PU TEST TOOLS AND RU TO TEST BOPE. Printed 12/9/2010 2:04:20PM Borth America -ALASKA- BP Page 16 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft 22:30 - 00:00 1.50 BOPSUR P DECOMP TEST BOPE AND CHOKE MANIFOLD TO 250 PSI LOW AND 4,000 PSI HIGH WITH 4"AND ((��/)DP 4-1/2"TEST JOINTS. TEST ANNULAR PREVENTER TO 250 PSI LOW AND 2,500 PSI ..<€5� HIGH WITH 4"TEST JOINT. -ALL TESTS GOOD. AOGCC REP BOB NOBLE WAIVED WITNESS TO THE TEST ON 09/20/2010. TEST WITNESSED BY BP WSL RAYMOND PLATT AND NAD TOURPUSHER BIFF PERRY. 9/21/2010 00:00 - 02:30 2.50 BOPSUR P DECOMP CONTINUE TEST BOPE AND CHOKE MANIFOLD TO 250 PSI LOW AND 4,000 PSI HIGH WITH 4"AND 4-1/2"TEST JOINTS. TEST ANNULAR PREVENTER TO 250 PSI LOW AND 2,500 PSI HIGH WITH 4"TEST JOINT. -ALL TESTS GOOD. AOGCC REP BOB NOBLE WAIVED WITNESS TO THE TEST ON 09/20/2010. TEST WITNESSED BY BP WSL RAYMOND PLATT AND NAD TOURPUSHER BIFF PERRY. 02:30 - 03:30 1.00 BOPSUR P ® DECOMP RD TEST EQUIPMENT AND LINES, PULL TEST PLUG,AND INSTALL WEAR BUSHING. 03:30 - 04:00 0.50 WHSUR P DECOMP POH/LD RTTS. 04:00 - 04:30 0.50 CLEAN P ® DECOMP RIH WITH 7"CEMENT CLEAN-OUT BHA FROM 11,242'TO 11,692'. 04:30 - 12:00 7.50 CLEAN N DFAL 11,692.00 DECOMP ATTEMPT TO PRESSURE TEST 7"CASING TO 4000 PSI FOR 30 MIN. TEST FAILED,LOST 800 PSI IN 30 MIN. BLEED DOWN AND CHECK SURFACE EQUIPMENT. LOCK DOWN SCREW LEAKING, REPLACE LOCK DOWN SCREW. RE-TEST AND FAILED AT SAME LOSS RATE. CHECK SURFACE EQUIPMENT AND SERVICE ALL VALVES AND RE-TEST. FAILED AT SAME LOSS RATE. BLOW DOWN LINES AND CONSULT WITH TOWN 12:00 - 16:30 4.50 CLEAN N DFAL 11,692.00 DECOMP POOH FROM 11689'MD TO BHA 16:30 - 18:00 1.50 CLEAN N DFAL 11,692.00 DECOMP LD CLEANOUT BHA. SET BACK 3 STANDS, LD JARS,BOOT BASKETS,BIT SUBFLOAT SUB AND BIT. CLEAN PARRAFIN FROM BOOT BASKETS. 18:00 - 19:00 1.00 CLEAN N DFAL 11,692.00 DECOMP PRESSURE TEST 7"CASING TO 4000 PSI. LOST 350 PSI IN 14 MIN. BLEED PRESSURE. 19:00 - 23:00 4.00 CLEAN N DFAL 11,692.00 DECOMP MU RTTS AND RIH TO 5844' 23:00 - 00:00 1.00 CLEAN N DFAL 11,692.00 DECOMP SET RTTS WITH ELEMENTS AT 5840'MD. 105K PUW,93 SOW. PRESSURE TEST 7" CASING FROM 5840'TO SURFACE TO 4000 PSI FOR 10 MIN. LOST 9 PSI. PRESSSURE TEST 7"CASING FROM 5840'TO TOP OF FAST DRILL PLUG AT 11,692'MD TO 4000 PSI. LOST 388 PSI IN 10 MIN. 9/22/2010 00:00 - 04:00 4.00 CLEAN N DFAL 11,692.00 DECOMP RIH WITH RTTS FROM 5840'TO 11675'MD. 170K PUW,140K SOW Printed 12/9/2010 2:04:20PM forth America -ALASKA- BP Page 17 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site:PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 06:00 2.00 CLEAN N DFAL 11,692.00 DECOMP SET RTTS AND TEST FROM 11670'MD TO SURFACE TO 4000 PSI FOR 10 MIN. LOST 7 PSI. RELEASE RTTS AND RIH TO 11692'MD AND TAG FAST DRILL. SET RTTS AT 11683' MD. TEST 7"CASING FROM ABOVE TO 4000 PSI FOR 30 MIN. LOST 12 PSI IN THE FIRST 15 MIN AND 4 PSI IN THE SECOND 15 MIN. TEST 7"CASING FROM 11683'TO 11692'MD AND FAST DRILL PLUG BFl OW RTTS I( ST 314 PSI IN5 MIN, 06:00 - 10:30 4.50 CLEAN N DFAL 11,692.00 DECOMP POOH FROM 11692'TO SURFACE. LD RTT$. TRACES OF PARAFFIN ON RTTS 10:30 - 11:00 0.50 CLEAN P DECOMP PICK UP CLEAN OUT BHA AND RIH TO 308' MD 11:00 - 15:30 4.50 CLEAN P DECOMP RIH FROM 308'TO 11595'MD 180K PUW,145K SOW 15:30 - 16:00 0.50 CLEAN P DECOMP CUT AND SLIP 148'OF DRILLING LINE 16:00 - 16:30 0.50 CLEAN P DECOMP SERVICE TOP DRIVE AND CROWN 16:30 - 17:00 0.50 CLEAN P DECOMP SLOW PUMP RATES TAKEN WASH DOWN FROM 11595'TO TAG FASDRILL AT 11692'MD. 250 GPM,922 PSI 17:00 - 20:00 3.00 CLEAN P DECOMP DRILL FASDRILL PLUG FROM 11692'TO 11695' MD.WASH DOWN/NO CEMENT FROM 11695' TO 11805'MD.DRILL CEMENT FROM 11805' TO 11890'MD. NO CEMENT FROM 11890'TO 11905'MD. DRILL CEMENT FROM 11905'TO 11920'MD. 250 GPM,950 PSI ON,924 PSI OFF 50 RPM,5K TQ ON,4K TQ OFF 186K PUW,142K SOW,160K RTW 20:00 - 22:30 2.50 CLEAN P DECOMP PU TO 11874'MD. 8.4 PPG MW IN AND OUT. PERFORM FIT TO 812 PSI AT 8897'TVD. 10.1 PPG EMW 22:30 - 23:30 1.00 CLEAN P DECOMP CIRCULATE AND RECIPRICATE H-VIS SWEEP FROM 11877'TO 11783'MD.513 GPM,80 RPM, 7K TQ 200K PUW,135K SOW,140K RTW 23:30 - 00:00 0.50 CLEAN P DECOMP RU TO PERFORM LOT 9/23/2010 00:00 - 00:30 0.50 CLEAN P DECOMP 8.4 PPG MW IN AND OUT. PERFORM LOT TO 3754 PSI AT 8897'TVD. 16.5 PPG EMW 00:30 - 01:00 0.50 CLEAN P DECOMP RD AND BLOW DOWN LINES. 01:00 - 02:00 1.00 CLEAN P DECOMP CIRCULATE AT 11877'MD AT 500 GPM AND 2650 PSI. CONSULT WITH TOWN ON LOT RESULTS 02:00 - 05:00 3.00 CLEAN P DECOMP DRILL CEMENT FROM 11920'MD TO 11960' MD. PUMP SWEEPS AS NEEDED 535 GPM,2908 PSI 50 RPM,8.8 TQ 05:00 - 06:00 1.00 CLEAN P DECOMP WASH/REAM DOWN FROM 11970'TO 12005' MD 06:00 - 08:00 2.00 CLEAN P DECOMP CONTINUE DRILLING CEMENT FROM 12005' MD TO 12021'MD. 540 GPM,2780 PSI 200K PUW,115K SOW,125K RTW 50 RPM,9K TQ ON,8K TQ OFF 08:00 - 09:30 1.50 CLEAN P DECOMP CIRCULATE TO CLEAN HOLE AT 450 GPM, 1980 PSI Printed 12/9/2010 2:04:20PM forth America -ALASKA- BP Page 18 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site:PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual©64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:30 - 11:00 1.50 CLEAN P DECOMP POOH FROM 12021'TO 10372'MD 210K PUW,115K SOW 11:00 - 13:00 2.00 CLEAN P DECOMP DISPLACE WELL WITH CLEAN WATER AND NXS LUBE. RECIPRICATE FROM 10372'TO 10279'MD 387 GPM,1640 PSI 70 RPM,5K TQ 167K PUW,135K SOW,145K RTW 13:00 - 13:30 0.50 CLEAN P DECOMP MONITOR WELL,8.4 PPG MW IN AND OUT. RIH FROM 10372'TO 12021'MD 13:30 - 17:30 4.00 CLEAN P DECOMP CIRCULATE AND RECIPRICATE FROM 12020' MD TO 11971'MD 182 GPM,515 PSI 30 RPM,5K TQ 185K PUW,145K SOW,162K RTW 17:30 - 21:00 3.50 CLEAN P DECOMP PJSM, PUMP 100 BBLS AT 140 DEG FRESH WATER. LITTLE RED PUMP 50 BBLS OF DIESEL WITH BARA-SCRUB,FOLLOWED BY ANOTHER 5 BBLS OF DIESEL. RIG FOLLOW WITH ANOTHER 40 BBLS OF 140 DEG FRESH WATER. LET SOAK FOR 5 MIN. PUMP 100 BBLS OF FREAH WATER. CLOSE BOTTOM RAMS AND OPEN TO TIGER TANK. RIH DISPLACE WITH 250 BBLS FRESH WATER. 21:00 - 00:00 3.00 CLEAN P DECOMP POOH FROM 12021'MD TO 2847'MD 9/24/2010 00:00 - 02:00 2.00 CLEAN P DECOMP POOH FROM 2847'MD TO SURFACE. LD CLEAN OUT BHA. CLEAN AND CLEAR RIH FLOOR. 02:00 - 03:00 1.00 EVAL P DECOMP RU SLB E-LINE,RU SHEEVES IN DERRICK. 03:00 - 03:30 0.50 EVAL P DECOMP RIH WITH USIT ON F-LINF TO 900' 03:30 - 05:30 2.00 EVAL N DFAL DECOMP ERROR WITH TELEMETRY SYSTEM WHILE ESTABLISHING FLUID PARAMETERS. POOH AND LD USIT. INSTALL NEW TELEMETRY TOOL AND RIH 05:30 - 12:30 7.00 EVAL P DECOMP ,RIH TO 12000'Mo Anm RFGIN I OG(ING 7",, CASING WITH USIT TO SURFACE 12:30 - 13:00 0.50 EVAL P DECOMP RD SLB E-LINE 13:00 - 18:00 5.00 STWHIP P WEXIT PU 7"WHIPSTOCK BH/{WITH STARTER MILL AND 3 WATERMELON MILLS AND IMPULSE MWD TO 1054'MD 18:00 - 19:00 1.00 STWHIP P WEXIT ATTEMPT TO SHALLOW HOLE TEST MWD AT 1054'MD AT 180 GPM AND 294 PSI,POOR SIGNAL. RIH WITH WHIPSTOCK TO 4"DP FROM 1054'TO 1789'MD. SHALLOW HOLE TEST MWD WITH 275 GPM AND 973 PSI. GOOD TEST. 19:00 - 00:00 5.00 STWHIP P WEXIT RIH FROM 1807'TO 10272' 165K PUW,130K SOW 9/25/2010 00:00 - 02:30 2.50 STWHIP P WEXIT RIH WITH WHIPSTOCK ASSEMBLY FROM 10272'TO 11936'MD. 190K PUW,145K SOW TAKE 20K WEIGHT AT 11939'MD AND ATTEMPT TO WORK THROUGH ROTATING 1/2 TURN AT A TIME. ATTEMPT TO WASH THROUGH AT 165 GPM,AND 605 PSI WITHOUT SUCCESS. 02:30 - 04:00 1.50 STWHIP N DPRB 11,939.00 WEXIT SPOT LUBE AT BIT AT 165 GPM AND 605 PSI AND ATTEMPT TO WORK THROUGH TIGHT SPOT WITHOUT SUCCESS Printed 12/9/2010 2:04:20PM •North America -ALASKA- BP Page 19 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 10:30 6.50 STWHIP N DPRB 11,939.00 WEXIT MONITOR WELL,STATIC. PUMP DJ. POOH WITH WHIPSTOCK ASSEMBLY FROM 11936' TO 846'MD 10:30 - 12:30 2.00 STWHIP N DPRB 11,939.00 WEXIT LD WHIPSTOCK BHA,RD HWDP AND DRILL COLLERS. I A . • • u ■• 12:30 14:30 2.00 CLEAN N DPRB 11,939.00 WEXIT PU CLEANOUT BHA. FULL GAUGE JUNK MILL,2 STRING MILLS AND JARS TO 769'MD 55K PUW,55K SOW 14:30 - 19:30 5.00 CLEAN N DPRB 11,939.00 WEXIT RIH WITH CLEAN OUT BHA FROM 769'TO 11774'MD. -187K PUW,150K SOW 19:30 - 22:00 2.50 CLEAN N DPRB 11,939.00 WEXIT WASH DOWN FROM 11774'MD TO 11880'MD AT 167 GPM AND 500 PSI. SLIDE JUNK MILL THROUGH WINDOW TO 11909'MD. TAKE 5K WEIGHT AT 11910'MD. MILL WITH 1K WOB AND 60 RPM FROM 11910'TO 11913'MD. ATTEMPT TO SLIDE THROUGH AND TAKE 30K WEIGHT. WORK MILL WITH 10K DOWN WEIGHT AND ABLE TO SLIDE THROUGH OBSTRUCTION. RIH FROM 11913'MD TO 11967'MD. REAM FROM 11967'MD TO 12015' MD. RIH AND TAG EZSV AT 12020'MD. 22:00 - 00:00 2.00 CLEAN N DPRB 11,939.00 WEXIT DISPLACE WELL TO 8.4 PPG QUIKDRIL N MILLING FLUID. WORK MILLS ACROSS WINDOW AND TIGHT SPOT FROM 11980'MD TO 11950'MD BIT DEPTH. -275 GPM,1380 PSI -100 RPM,5K TQ -187K PUW,145K SOW,155 RTW WORK MILLS ACROSS WINDOW WITHOUT CIRCULATION, NO DRAG. RUN MILL THROUGH WINDOW AND TIGHT SPOT WITHOUT PUMPS OR ROTATING,NO DRAG. TAC EZSV AT 12020'MD 9/26/2010 00:00 - 01:00 1.00 CLEAN N DPRB 11,939.00 WEXIT CONTINUE TO WORK MILLS THROUGH WINDOW AND TIGHT SPOT WITHOUT ROTATION OR PUMPS,NO DRAG. RUN ALL MILLS THROUGH WINDOW AND TAG EZSV AT 12020'MD. POOH TO 11868'MD WITH NO DRAG. 190K PUW,145K SOW 01:00 - 04:30 3.50 CLEAN N DPRB 11,939.00 WEXIT MONITOR WELL,STATIC. PUMP DRY JOB. POOH FROM 11868'MD TO 769'MD 04:30 - 06:30 2.00 CLEAN N DPRB 11,939.00 WEXIT PJSM,RACK BACK 5 STDS HWDP,2 STDS DRILL COLLARS,LD CLEANOUT BHA 06:30 - 08:30 2.00 STWHIP N DPRB 11,939.00 WEXIT PJSM.PU WHIPSTOCK AND MILLING BHA TO 865'MD. 08:30 - 12:00 3.50 STWHIP N DPRB 11,939.00 WEXIT RIH FROM 865'MD TO 1995'MD. SHALLOW HOLE TEST MWD AT 250 GPM AND 825 PSI. CONTINUE RUNNING IN HOLE FILLING EVERY 30 STANDS TO 6603'MD. 125K PUW,100K SOW 12:00 - 16:00 4.00 STWHIP N DPRB 11,939.00 WEXIT RIH FROM 6603'MD TO 11964'MD. 195K PUW,145K SOW SLOW PUMP RATES TAKEN Printed 12/9/2010 2:04:20PM ,orth America -ALASKA- BP Page 20 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site:PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual©64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 17:00 1.00 STWHIP P WEXIT ORIENT WHIPSTOCK 65 RIGHT OF HIGH SIDE. SET ANCHOR AT 12020'MD WITH 20K, e DOWN TO SHEAR ANCHOR. PU 10K OVER TO CONFIRM SET. SET DOWN 45K AND SHEAR OFF WHIPSTOCK. 171 GPM,1002 PSI 60 RPM,6K TQ 195K PUW,145K SOW,160K RTW 17:00 - 00:00 7.00 STWHIP P WEXIT MILL WINDOW FROM 12003'TO 12010'MD 200 GPM,1492 PSI 100 RPM,10K TQ 195K PUW,145K SOW,160 RTW 9/27/2010 00:00 - 15:00 15.00 STWHIP P WEXIT MILL WINDOW FROM 12010'TO 12017'MD AND 20'OF NEW HOLE TO 12032'MD. -200 GPM,1655 PSI -80 RPM,6-7K TQ -15-25 WOB 190K PUW,145K SOW,150K RTW TOW= 12003'MD/12012' ELM BOW= 12017'MD/12026'ELM 15:00 - 16:00 1.00 STWHIP P WEXIT CIRCULATE HI-VIS SWEEP,WORK MILLS ACROSS WINDOW WITH CIRCULATION AND ROTATION AND W/O CIRCULATION AND ROTATION. NO DRAG UP OR DOWN THROUGH WINDOW 16:00 - 16:30 0.50 STWHIP P WEXIT MONITOR WELL,STATIC 8.6 MW IN AND OUT. POOH FROM 12037'TO 11850'MD. 16:30 - 17:30 1.00 STWHIP P WEXIT PERFORM FIT TO 728 PSI,8.6 PPG MW AT 12003'MD/8932'ND. 10.1 PPG EMW 17:30 - 18:30 1.00 STWHIP P WEXIT CUT AND SLIP DRILLING LINE. ADJUST BRAKES 18:30 - 19:00 0.50 STWHIP P WEXIT SERVICE TOP DRIVE AND CROWN 19:00 19:30 0.50 STWHIP P WEXIT SLOW PUMP RATES TAKEN MONITOR WELL,STATIC. PUMP DRY JOB 19:30 - 00:00 4.50 STWHIP P WEXIT POOH FROM 11850'TO 2071'MD 9/28/2010 00:00 - 00:30 0.50 STWHIP P WEXIT POOH FROM 2071'MD 847'MD. 00:30 - 02:00 1.50 STWHIP P WEXIT LD 5 STANDS OF HWDP,3 STANDS OF DRILL COLLARS AND MILLS. BOTH UPPER MILLS IN GAUGE. CLEAN AND CLEAR RIG FLOOR. 02:00 - 03:30 1.50 STWHIP P WEXIT PULL WEAR RING. DRAIN STACK AND FUNCTION RAMS. RU AND JET STACK,KILL AND CHOKE LINES. RD AND BLOW DOWN LINES. INSTALL WEAR RING. 03:30 - 05:00 1.50 STWHIP P WEXIT PJSM,MU BHA#15:6"MX-18HDX HUGHES, SHORT PAK PDM 2.0 DEG MOTOR,IMPULSE MWD AND PBL CIRC SUB. TORQUE BIT TO 9K FT-LBS. 05:00 - 06:00 1.00 STWHIP P WEXIT PJSM, PU DRP FROM 197'TO 1139'MD. ATTEMPT TO SHALLOW HOLE TEST MWD. PIPE PRESSURED UP,UNABLE TO CIRCULATE. ATTEMPT TO PUMP AGAIN, STILL PRESSURING UP. 06:00 - 07:00 1.00 STWHIP N DFAL 1,139.00 WEXIT POOH FROM 1139'TO 197'MD 07:00 - 08:30 1.50 STWHIP N DFAL 1,139.00 WEXIT LD BHA#15, UNABLE TO TURN BIT BOX ON MOTOR 08:30 - 09:30 1.00 STWHIP N DFAL 1,193.00 WEXIT CHANGE OUT IBOP AND SAVER SUB 09:30 - 11:30 2.00 STWHIP N DFAL 1,139.00 WEXIT PJSM, PU BHA#16 TO 196'MD Printed 12/9/2010 2:04.20PM north America -ALASKA- BP Page 21 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 12:00 0.50 STWHIP N DFAL 1,139.00 WEXIT RIH FROM 196'TO 1137'MD,SHALLOW HOLE TEST MWD AT 250 GPM AND 1040 PSI 12:00 - 14:30 2.50 STWHIP P WEXIT RIH ON 4"DRILL PIPE SINGLES FROM 1137' TO 3582'MD. 14:30 - 18:30 4.00 STWHIP P WEXIT RIH FORM 3582'TO 11859'MD -185K PUW,140K SOW FILL PIPE EVERY 30 STDS 18:30 - 20:00 1.50 STWHIP P WEXIT SERVICE TOP DRIVE TIW/SAVER SUB AND ACTUATED IBOP. PRESSURE TEST TO 250 PS1/5MIN,4000 PSV5 MIN EACH 20:00 - 21:00 1.00 STWHIP P WEXIT RIH FROM 11859'TO 11953'MD,ORIENT 65 DEG RHS. SLIDE THROUGH WINDOW WITHOUT DRAG. WASH DOWN FROM 12030' TO 12037'MD SLOW PUMP RATES TAKEN 21:00 - 00:00 3.00 DRILL P PROD1 SLIDE DRILL AHEAD FROM 12037'TO 12079' MD. BUILD AND TURN -228 GPM,1880 PSI ON,1722 PSI OFF ? I A A -10-20K WOB '•�. ... -180K PUW 135K SOW Tr9/2017 00:00 - 0 :30 5.50 DRILL P PROD1 DIRECTIONAL DRILL AHEAD IN 6" PRODUCTION HOLE FROM 12079'MD TO 12202'MD. BUILD AND TURN FROM 65 DEG INC TO 84 DEG INC AND 61 TO 90 DEG AZM. -252 GPM,1980 PSI ON,1890 PSI OFF -15-20K WOB -183K PUW,137K SOW 05:30 - 07:00 1.50 DRILL P PROD1 CIRCUALTE 40 BBLS HI-VIS SWEEP AROUND AT 250 GPM AND 1920 PSI SLOW PUMP RATES TAKEN 07:00 - 07:30 0.50 DRILL P PROD1 MONITOR WELL,STATIC. PUMP OUT OF HOLE FROM 12215'TO 11948'MD AT 250 GPM, 1800 PSI 07:30 - 12:30 5.00 DRILL P PROD1 MONITOR WELL FOR 10 MIN,STATIC. PUMP DRY JOB. POOH FROM 11948'TO 196'MD 12:30 - 14:00 1.50 DRILL P PROD1 MONITOR WELL.8.6 MW IN AND OUT. LD BHA#16. STAND BACK FLEX COLLARS. MX-18HDX BIT GRADED: 1-1 WT-A-E-I-NO-BHA 14:00 - 17:00 3.00 DRILL P PROD1 PU BHA#17:6"MRS513D-A1 B BIT,AIM MOTOR 1.5 DEG, IMPULSE MWD,ADN4 AND PBL SUB TO 214'MD. 17:00 - 22:00 5.00 DRILL P PROD1 RIH FROM 214'TO 1155'MD. SHALLOW HOLE TEST MWD. CONTINUE TO RIH FROM 1155' TO 11877'MD. 205K PUW,125K SOW 22:00 - 22:30 0.50 DRILL P PROD1 SLIP AND CUT 70'OF DRILLING LINE 22:30 - 23:30 1.00 DRILL P PROD1 RIH FROM 11877'TO 12003'MD.ORIENT 65 DEG RHS. SLOW PUMP RATES TAKEN 23:30 - 00:00 0.50 DRILL P PROD1 RIH FROM 12003'TO 12160'MD. 10K DRAG FROM 12038'TO 12040'MD. 9/30/2010 00:00 - 01:30 1.50 DRILL P PROD1 ATTEMPT WORK PIPE DOWN PAST 12160'MD WITH AND WITHOUT PUMPS.TAKING 10-20K WEIGHT. WORK DOWN TO 12170'MD,TAKE 30K WEIGHT. HOLE PACKING OFF. 25-45K OVER PULL. 01:30 - 02:30 1.00 DRILL P PROD1 WORK PIPE BACK TO 12083'MD. PUMP OUT OF HOLE TO 12025'WITHOUT PROBLEMS. CBU 1X AT 250 GPM AND 1930 PSI. Printed 12/9/2010 2:04:20PM • ,orth America -ALASKA- BP Page 22 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 - 03:30 1.00 DRILL P PROD1 RIH TO 12060'MD AND START TAKING WEIGHT. WORK PIPE DOWN TO 12198'MD, TAKING 10-20K WEIGHT. UNABLE TO WORK PAST 12198'MD. PULL BACK TO 12059' TAKING 10-20K OVER PULLS. RIH TO 12170' AND TAKE WEIGHT. ATTEMPT TO WORK THROUGH. HOLE PACKING OFF AND TAKING 25K OVERPULL 03:30 - 04:30 1.00 DRILL P PROD1 WORK PIPE BACK TO 12060'MD. PUMP OUT OF HOLE TO 12024'MD. RECIPRICATE PIPE FROM 12024'TO 12056'WHILE CIRCULATING HOLE CLEAN AT 255 GPM AND 2017 PSI. 04:30 - 05:30 1.00 DRILL P PROD1 WASH DOWN FROM 12024'MD TO 12080'AND TAKE WEIGHT. WORK DOWN TO 12215'WITH PUMPS. -250 GPM,1980 PSI 05:30 - 12:00 6.50 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 12215'TO 12304'MD WITH 6"PRODUCTION BHA. BUILD FROM 88 DEG TO 97 DEG INC AND TURN FROM 91 DEG TO 96 DEG AZM. -250 GPM,2140 PSI ON,2020 PSI OFF 20K WOB -21OK PUW,117K SOW 5,1•0( 12:00 - 00:00 12.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 12304'TO 12535'MD WITH 6"PRODUCTION BHA.HOLD AT 96 DEG INC AND TURN FROM 96 DEG TO 108 DEG AZM. -250 GPM,2310 PSI ON,2052 PSI OFF -10-20K WOB -40 RPM,9K TQ ON,7K TQ OFF -185K PUW,120K SOW,145K RTW CALC ECD=10.0 PPG,ACTUAL ECD=10.09 PPG SLOW PUMP RATES TAKEN KICK WHILE TRIPPING DRILL(D-1) 10/1/2010 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 12535'TO 12911'MD WITH 6"PRODUCTION BHA. DROP FROM 94 DEG TO 90 DEG INC AND TURN FROM 110 DEG TO 128 DEG AZM. -250 GPM,2345 PSI ON,2130 PSI OFF -10-20K WOB -60 RPM,8.5K TQ ON,6.5K TQ OFF -192K PUW,130K SOW,147K RTW CALC ECD=9.92 PPG,ACTUAL ECD= 10.26 PPG SLOW PUMP RATES TAKEN 12:00 - 00:00 12.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 12911'TO 13757'MD WITH 6"PRODUCTION BHA.HOLD AT 90 AND TURN FROM 128 DEG TO 118 DEG AZM. -250 GPM,2345 PSI ON,2290 PSI OFF -10-20K WOB -80 RPM,8.5K TQ ON,6.5K TQ OFF -190K PUW,135K SOW,147K RTW CALC ECD=10.0 PPG,ACTUAL ECD=10.48 PPG SLOW PUMP RATES TAKEN Printed 12/9/2010 2:04:20PM worth America -ALASKA- BP Page 23 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/2/2010 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 13757'TO 14291'MD WITH 6"PRODUCTION BHA.BUILD FROM 90 DEG TO 92 DEG INC,THEN DROP FROM 92 DEG TO 87 DEG INC.TURN FROM 118 DEG AZM TO 135 DEG AZM. -250 GPM,2705 PSI ON,2415 PSI OFF -10-20K WOB -60 RPM,9.5K TQ ON,6.5K TQ OFF -195K PUW,133K SOW,145K RTW CALC ECD=10.21 PPG,ACTUAL ECD=10.53 PPG SLOW PUMP RATES TAKEN KICK WHILE DRILLING DRILL(D2) 12:00 - 16:30 4.50 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 14291'TO 14467'MD WITH 6"PRODUCTION BHA. HOLD AT 88 DEG INC.TURN FROM 135 DEG AZM TO 144 DEG AZM. -250 GPM,2690 PSI ON,2370 PSI OFF -10-20K WOB -60 RPM,10K TQ ON,6.5K TQ OFF ► -195K PUW,133K SOW,145K RTW CALC ECD=10.21 PPG,ACTUAL ECD=10.53 PPG KICK WHILE DRILLING DRILL(D2) BEGIN TAKING 152 BPH DYNAMIC LOSSES AT 14467'MD, NO STATIC LOSSES 16:30 - 20:00 3.50 DRILL P PROD1 SLOW PUMPS TO 2 BPM AND 835 PSI. PULL UP OFF BOTTOM TO 14445'MD. LOSSES SLOWED TO 100 BPH. DROP BALL 1.5"AND PUMP DOWN WHILE RECIPRICATING PIPE AND ROTATING PIPE AT 30 RPM,7K TQ. OPEN UP PBL SUB,25 PSI PRESSURE DROP. BRING RATE UP TO 250 GPM AND 1330 PSI. PUMP 40 BBL LCM PILL WITH 40 PPB CALCIUM CARBONATE.SPOT ON BOTTOM AND LET SIT FOR 15 MIN. MONITOR WELL, BREATHING,CONFIRM RETURNS STOPPED. LOSSES SLOWED TO 40 BPH. DROP STEEL BALLS AND PUMP DOWN AT 4 BPM AND 1060 PSI. SHIFT CLOSE PBL SUB WITH 3000 PSI. CONFIRM BHA OPEN. SLOW PUMP RATES TAKEN 20:00 - 00:00 4.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 14467'TO 14603'MD WITH 6"PRODUCTION BHA. HOLD AT 88 DEG INC.TURN FROM 144 DEG AZM TO 151 DEG AZM. MONITOR WELL ON CONNECTIONS FOR DECREASING FLOW. -250 GPM,2620 PSI ON,2257 PSI OFF -10-20K WOB -60 RPM,10K TQ ON,6.5K TQ OFF -190K PUW,125K SOW,147K RTW CALC ECD=10.04 PPG,ACTUAL ECD=10.53 PPG SLOW PUMP RATES TAKEN Printed 12/9/2010 2:04.20PM north America -ALASKA- BP Page 24 of 28 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/3/2010 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 14603'TO 14900'MD WITH 6"PRODUCTION BHA. BUILD FROM 90 DEG TO 98 DEG INC.TURN FROM 154 DEG AZM TO 166 DEG AZM. MONITOR WELL ON CONNECTIONS FOR DECREASING FLOW. -250 GPM,2660 PSI ON,2380 PSI OFF -10-20K WOB -60 RPM,10K TQ ON,7K TQ OFF -190K PUW,125K SOW,147K RTW CALC ECD=10.04 PPG,ACTUAL ECD=10.64 PPG KICK WHILE DRILLING DRILL LOSING 10-15 BPH OF 8.6 PPG QUIKDRIL N WHILE CIRCULATING SLOW PUMP RATES TAKEN 12:00 - 21:30 9.50 DRILL P PROD1 DIRECTIONAL DRILL AHEAD FROM 14900'TO '01 TD AT 15420'MD WITH 6"PRODUCTION BHA. p�. DROP FROM 98 DEG TO 89 DEG INC AND �.�t` HOLD TO TD.TURN FROM 166 DEG AZM TO S✓ 170 DEG AZM AND HOLD TO TD. MONITOR WELL ON CONNECTIONS FOR DECREASING FLOW. -'250 GPM,2815 PSI ON,2430 PSI OFF -10-20K WOB -60-80 RPM,9.5K TQ ON,7K TQ OFF -195K PUW,125K SOW,145K RTW CALC ECD=10.35 PPG,ACTUAL ECD=11.07 PPG KICK WHILE DRILLING DRILL LOSING 10-15 BPH OF 8.6 PPG QUIKDRIL N WHILE CIRCULATING SLOW PUMP RATES TAKEN 21:30 - 23:00 1.50 DRILL P PROD1 CIRCULATE 410 BBLS OF 8.6 PPG MUD AT 250 GPM AND 2540 PSI -80 RPM,7KTQ MONITOR WELL,BREATHING,CONFIRM FLOW STOPPED. OFF LOAD DILUTION FLUID TO PITS. 23:00 - 00:00 1.00 DRILL P PROD1 PUMP 160 BBLS OF NEW 8.5 PPG QUIKDRIL N MUD. BACK REAM FROM 15356'TO 15262' MD. -250 GPM,2450 PSI -80 RPM,7K TQ MONITOR WELL ON CONNECTIONS 10/4/2010 00:00 - 01:00 1.00 DRILL P PROD1 BACKREAM OUT OF HOLE FROM 15262'TO 15074'MD. WORK TIGHT HOLE FROM 15126' TO 15072'MD. -250 GPM,2310 PSI -40 RPM,5-10K TQ -145K RTW SHUT DOWN AND MONITOR WELL FOR FLOW,CONFIRM BREATHING. TURN PUMP BACK ON AND PRESSURE DROPPED TO 1330 PSI AT 250 GPM 01:00 - 02:30 1.50 DRILL N DFAL 15,072.00 PROD1 TROUBLE SHOOT DROP IN PUMP PRESSURE. CHECK SURFACE EQUIPMENT,CLEAN PUMP SCREENS, PRESSURE TEST SURFACE EQUIPMENT,ALL GOOD. RE-CHECK PUMP PRESSURE,250 GPM AND 1330 PSI. SUSPECT PBL SUB OPEN Printed 12/9/2010 2:04:20PM Iorth America -ALASKA- BP Page 25 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 - 04:00 1.50 DRILL N DFAL 15,072.00 PROD1 DROP 1.5"VINYL BALL TO FUNCTION PBL SUB. PUMP DOWN AT 170 GPM AND 1070 PSI. 25 PSI INCREASE THEN DROP OFF. CHECK PUMP PRESSURES,250 GPM AND 1330 PSI. DROP BALL TO DIVERT FLOW THROUGH BHA. PUMP DOWN AT 170 GPM AND 1164 PSI. PUMP PRESSURE INCREASED FROM 1164 PSI TO 1936 PSI. INCREASE PUMP TO 250 GPM AND 2370 PSI. 04:00 - 12:00 8.00 DRILL P PROD1 BACKREAM OUT OF HOLE FROM 15072'TO 13757'MD. WORKING PIPE THROUGH TIGHT HOLE. MONITOR WELL ON CONNTECTIONS -250 GPM,2250 PSI -40 RPM,5-10K TQ -145K RTW 90 BBLS MUD LOST TO WELL IN PAST 12 HRS 12:00 - 17:00 5.00 DRILL P PROD1 CONTINUE BACKREAMING OUT OF HOLE FROM 13757'TO 12868'MD. -250 GPM,2250 PSI -40 RPM,5-10K -185K PUW,120K SOW,145K RTW 17:00 - 18:30 1.50 DRILL P PROD1 PIPE TORQUED UP AND TOOK 20K OVERPULL AT 12868'MD. UNABLE TO MOVE PIPE. WORK PIPE AND JAR DOWN TO FREE PIPE. 18:30 - 22:00 3.50 DRILL P PROD1 CONTINUE TO BACKREAM OUT OF THE HOLE FROM 12868'TO 12450'MD. PUMP OUT OF HOLE FROM 12450'TO 12235'MD. 10K OVERPULL AT 12235'MD 22:00 - 00:00 2.00 REMCMT P PROD1 UNABLE TO MOVE PIPE AT 12235'MD. WORK AND JAR PIPE DOWN ON PIPE. PBL INADVERTENTLY OPENED. DROP BALLS TO FUNCTION PBL 10/5/2010 00:00 - 01:00 1.00 DRILL P PROD1 CONTINUE TO WORK PIPE AND PUMP DOWN PBL BALLS AT 170 GPM AND 110 PSI. PRESSURE UP TO 2400 PSI TO SHIFT PBL SUB. CONFIRM THAT PBL SHIFTED,250 GPM AND 2200 PSI. CONTINUE TO WORK PIPE DOWN TO FREE.PIPE FREE DOWN 01:00 - 01:30 0.50 DRILL P PROD1 WORK PIPE AND CIRCULATE TO CLEAR BHA. PBL SHIFTED OPEN 01:30 - 02:30 1.00 DRILL P PROD1 RIH FROM 12290'TO 12848'MD -195K PUW,125K SOW 02:30 - 04:00 1.50 DRILL P PROD1 TURN ON PUMPS AND PBL SUB CLOSED INADVERTENTLY, REGAIN CIRCULATION PRESSURE CIRCULATE 50 BBLS HIGH VIS SWEEP SURFACE TO SURFACE AT 250 GPM AND 2100 PSI. -60 RPM,6K TQ -145K RTW Printed 12/9/2010 2:04:20PM Page 26 of 28 Jorth America -ALASKA- BP Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 07:00 3.00 DRILL P PROD1 BACKREAM FROM 12,848'TO 12,440'MD. -250 GPM,1,975 PSI. -60 RPM,5-6K TQ -145K ROT WT. PUMP OUT OF HOLE FROM 12,440'TO 12,243' MD. TAKE WEIGHT,HANG UP,AND WORK PIPE FREE -PUMP OUT AT 250 GPM,1,140 PSI;PBL SUB OPENED UP AGAIN. BACKREAM FROM 12,243'TO 12,159'MD WITH SAME PARAMETERS AS ABOVE. POH ON ELEVATORS FROM 12,159'TO 12,003'. -PU WT 190K,SO WT 125K. 07:00 - 08:00 1.00 DRILL P PROD1 CBU X 2 AT 7"WINDOW. -400 GPM,1,775 PSI. -60 RPM. TQ 4.5K. -ROT WT 145K. 08:00 - 09:30 1.50 DRILL P PROD1 MONITOR WELL UNTIL STATIC. -PERFORM POST-JARRING DERRICK AND TD INSPECTION. -PUMP DRY JOB AND MONITOR WELL UNTIL STATIC. -MW 8.6 PPG IN AND OUT. 09:30 - 12:00 2.50 DRILL P ® PROD1 POH FROM 12,003'TO 4,917'. -PU WT 105K,SO WT 90K. -PBL SUB CLOSED. 12:00 - 14:30 2.50 DRILL P ■ PROD1 POH 4.917'TO 215'. -MONITOR WELL;SLIGHT LOSS. -MW 8.6 PPG IN AND OUT. 14:30 - 16:30 2.00 DRILL P PROD1 PJSM FOR HANDLING RA SOURCES AND LD BHA. -HANDLE RA SOURCES. -CLEAN AND CLEAR RIG FLOOR. -BIT GRADE--0-1-WT-G-I-X-NO-TD. 16:30 - 17:00 0.50 DRILL P PROD1 TEST BOPE. -PULL WR. -SET TEST PLUG. -RU TEST EQUIPMENT. 17:00 - 22:00 5.00 DRILL P PROD1 TEST BOPE. -TEST BOPE AND CHOKE MANIFOLD TO 250 PSI LOW AND 4,000 PSI HIGH WITH 4"AND bD 4-1/2"TEST JOINTS. TEST ANNULAR PREVENTER TO 250 PSI LOW AND 2,500 PSI �G� HIGH WITH 4"TEST JOINT. -ALL TESTS GOOD. ro. AOGCC REP CHUCK SCHEVE WITNESSED THE TEST. TEST WITNESSED BY BP WSLS DAVE NEWLON,JEFF LOFTIS,AND RAYMOND PLATT AND NAD PUSHERS LARRY WURDEMAN AND LENWARD TOUSSANT. 22:00 - 22:30 0.50 DRILL P -_ PROD1 REMOVE TEST PLUG, INSTALL WEAR RING, AND RD/BD TEST EQUIPMENT/LINES. 22:30 - 23:00 0.50 DRILL P ■- PROD1 LOAD PIPESHED WITH MWD TOOLS AND 4" HWDP. -ASSEMBLE SLIM PULSE MWD. Printed 12/9/2010 2:04:20PM 4orth America -ALASKA- BP Page 27 of 28 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:00 - 00:00 1.00 DRILL P PROD1 PU BHA#18 FOR CLEAN-OUT/WIPER RUN. -MU 10'FLEX DRILL COLLAR,NB STAB,AND • BIT TO 18'. -CONTINUE ASSEMBLING SLIM PULSE MWD. 10/6/2010 00:00 - 01:30 1.50 DRILL P PROD1 CONTINUE PU BHA#18 TO 177'. 01:30 - 06:30 5.00 DRILL P PROD1 RIH WITH BHA#18 T07"WINDOW AT 11,934'. -SHALLOW-HOLE TEST MWD AT 1,119';150 GPM,380 PSI. PU WT 177K,SO WT 140K. 06:30 - 07:00 0.50 DRILL P PROD1 SLIP AND CUT 87'OF DRILLING LINE. 07:00 - 07:30 0.50 DRILL P PROD1 SERVICE TOP DRIVE. -SERVICE TOP DRIVE,CROWN, BLOCKS, AND INSPECT BRAKES AND DRAWWORKS. 07:30 - 09:30 2.00 DRILL P PROD1 RIH FROM 11,934'TO 14,642'. -TAKE WEIGHT IN REGION OF FAULT AND RUBBLE ZONE. 09:30 - 10:30 1.00 DRILL P. PROD1 REAM DOWN FROM 14,642'TO 14,755'. -150 GPM,1,250 PSI. -50 RPM. -6-9K TQ. -150K ROT WT. -ATTEMPT TO BACK REAM SAME;PACK-OFF, TQ UP,AND STALL ROTARY. 10:30 - 11:30 1.00 DRILL P PROD1 RIH FROM 14,755'TO 15,319'. -WORK DOWN TO 15,416'. -150 GPM,1,350 PSI. 11:30 - 16:30 5.00 DRILL P PROD1 CBU X 4. -STAGE PUMPS--150 GPM,1,350 PSI;180 GPM,1,550 PSI;215 GPM,1,900 PSI;225 GPM, 1,985 PSI;250 GPM,2,225 PSI. -PU WT 195K,SO WT 125K. -80 RPM. -6.5K TQ. -SLIGHT PACK-OFF AND ROTARY STALL. -RECIPROCATE PIPE. -WASH TO BOTTOM. -PU WT 195K,SO WT 125K,ROT WT 145K. -MW 8.6+PPG IN AND OUT. 16:30 - 21:00 4.50 DRILL P PROD1 BACKREAM FROM 15,420'TO 14,702'. -PUMP 40 BBL LUBE PILL AND CLEAR BHA. -ROTARY STALL AND PACKING OFF. -ESTABLISH CIRCULATION AND ROTATION AND CONTINUE BACKREAMING TO 14,285'. -MONITOR WELL;WELL BREATHING; CONFIRM FLOW SUBSIDES. 21:00 - 21:30 0.50 DRILL P PROD1 TRY TO POH ON ELEVATORS;SWABBING. 21:30 - 00:00 2.50 DRILL P PROD1 PUMP OUT OF HOLE FROM 14,285'T07" WINDOW AT 11,934'. -5 BPM,1,280 PSI. 10/7/2010 00:00 - 01:00 1.00 DRILL P PROD1 CBU AT 7"WINDOW. -275 BBLS,250 GPM,1,585 PSI. -80 RPM. -5KTQ. -145K ROT WT. 01:00 - 02:30 1.50 DRILL P PROD1 MONITOR WELL. -MONITOR FOR 21 MINUTES UNTIL DEAD. -PUMP DRY JOB AND MONITOR FOR 17 MINUTES UNTIL DEAD. -DROP 2.25"RABBIT AT STD 125. Printed 12/9/2010 2:04:20PM .forth America -ALASKA- BP Page 28 of 28 4 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 9/6/2010 End Date: 10/7/2010 X3-00W9R-C(2,570,419.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual©64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 - 06:30 4.00 DRILL P PROD1 POH FROM 11,934'TO 177'. 06:30 - 07:30 1.00 DRILL P PROD1 LAY DOWN BHA.CLEAN AND CLEAR RIG FLOOR. -BIT GRADE 1-2-WT-A-E-I-ER-TD Printed 12/9/2010 2:04.20PM North America -ALASKA- BP Page 1 of 3 Operation Summary Report Common Well Name: S-41 AFE No Event Type:COM-ONSHORE(CON) Start Date: 9/28/2010 End Date: 10/10/2010 X3-00W9R-C(834,132.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: S- Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) aIrPO- Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/7/2010 07:30 - 10:00 2.50 CASING P RUNPRD RU NABORS CSG CREW W/TORQUE TURN AND COMPENSATOR EQUPT. 10:00 - 16:00 6.00 CASING P RUNPRD RUN LINER -83 JNTS 4.5"VAM TOP,12.6#,13CR-85, -TORQUE TURN-OPT MAKE UP 4440 FT/LBS. -CENT.2 PER JNT.JNTS 1-80 -PUW 72K,SOW 67K 16:00 - 17:30 1.50 CASING P RUNPRD CIRC&COND -1.5 LINER VOL -6 BPM,490 PSI -MIX PAL MIX -RD TORQUE TURN 17:30 - 23:30 6.00 CASING P RUNPRD TIH W/DP. 3,484'TO 11,916' -FILL PIPE EVERY 10 STDS. -PU 160K, SO 130K 23:30 - 00:00 0.50 CASING P RUNPRD CIRC&COND ABOVE 7'WINDOW -221 BBLS -STAGE PUMPS TO 5 BBLS/MIN @ 1070 PSI 10/8/2010 00:00 - 00:30 0.50 CASING P RUNPRD CONT.CBU -5 BBLS./MIN @ 1,070 PSI 00:30 - 04:00 3.50 CASING `P RUNPRD CONT.RIH FROM 11,916'TO 15,420' -WORK TIGHT HOLE FROM 14,696'TO 14,790' -MAKE UP CMT HEAD&DP SINGLE. -WASH DOWN TO 15,420'&TAG TD @ 15,420'.PU 7'TO 15,413 -PUW 195K,SOW 125K 04:00 - 07:30 3.50 CASING P RUNPRD CIRC -STAGE PUMPS UP TO 5 BBLS-MIN @ 1,475 PSI -CBU X 3 @ 5 BBLS-MIN. 07:30 - 09:30 2.00 CEMT P RUNPRD CEMENT 4.5"LINER •-PUMP 25 BBLS;11.5 PPG;MUD PUSH II. M -PRESS TEST CEMENT LINES TO 4500 PSI. t./ -PUMP 79 BBLS;15.8 PPG;CLASS G CMT W/ L 1t GAS-BLOK -YIELD 1.17 CU FT/SK,379 SKS. -DISPLACE W/55 BBL PERF PILL FOLLOWED BY 124 BBLS MUD. -RECIP PIPE UNTIL CEMENT WENT BY LINER HANGER. -BUMP PLUG&PRESSURE UP TO 3200 PSI. -SET HANGER;SLACK OFF TO CONFIRM SET. -BLEED BACK PRESSURE -CHECK FLOATS; FLOATS HELD. -SET PKR W/75K.REPEAT W/ROT TO VERIFY TWICE. ***CEMENT IN PLACE @ 8:45AM*** Printed 12/9/2010 2:03:40PM Common Well Name:S-41 AFE No Event Type: COM-ONSHORE(CON) Start Date:9/28/2010 End Date: 10/10/2010 X3-00W9R-C(834,132.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:30 - 11:00 1.50 CEMT P RUNPRD CIRC&COND -PRESS.UP TO 1,000 PSI; PU 23'; LINER TOP @ 11,954' -CIRC OUT CEMENT -450 GPM;2,600 PSI. -18 BBLS CMT TO SURFACE -CIRC TOTAL OF 504 BBLS MONITOR WELL;WELL STATIC -MUD WT 8.8 PPG -RD BD LINES; LD CMT HEAD 11:00 - 16:30 5.50 CEMT P RUNPRD POH W/LINER RUNNING TOOLS -CONFIRM DOG SUB SHEARED. -VERIFY BREAKS ON RUNNING TOOL.LD SAME -CLEAN&CLEAR RIG FLOOR 16:30 - 17:30 1.00 CEMT P RUNPRD SERVICE TOP DRIVE 17:30 - 21:00 3.50 CEMT N RREP RUNPRD RIG REPAIR-TOP DRIVE -BACK UP WRENCH CRACKED.CHANGE OUT BACK UP WRENCH. 21:00 - 22:30 1.50 PERFOB P OTHCMP PU 2-7/8"PERF GUN HANDLING TOOLS 22:30 - 00:00 1.50 PERFOB P OTHCMP PU 2-78"HSD PERF GUNS&E FIRE-TCP FIRING HEADS -2906 POWER JET;6 SPF; -TOTAL FT LOADED 1,560.00';TOTAL BLANK 361.96';TOTAL GUN LENGTH 1,921.96 10/9/2010 00:00 09:00 9.00 PERFOB P OTHCMP RIH W/ 2-78"H SD PERF GUNS&E FIRE-TCP FIRING HEADS&DP -2906 POWER JET;6 SPF 60 DEG PHASING. -TOTAL FT LOADED 1,560.00';TOTAL BLANK 361.96';TOTAL GUN LENGTH 1,921.96 -TAG LANDING COLLAR&PU TO 15,150'(MD) FIRING DEPTH. **KICK WHILE TRIPPING DRILL"" 09:00 - 10:00 1.00 PERFOB P OTHCMP RU AND TEST LINER -PRESSURE UP TO 3500 PSI. -PRESSURE BLED BACK TO 1500 PSI IN 10 MIN. -PREP TO FIRE GUNS 10:00 - 12:30 2.50 PERFOB P OTHCMP PERF @ 12,700-13,100';13,200-13,600'; 13,700-14,100;14,200-14,350;14,940-15,150'. .,(04 -RUN FIRING SEQUENCE. NO INDICATION GUNS FIRED.ABORT FIRING SEQUENCE BY LotiL-L CLOSING RAMS AND PRESS UP TO 1700 PSI;WAIT 20 MIN. -RUN 2ND SEQUENCE W/NO INDICATION GUNS FIRED. 12:30 - 14:00 1.50 PERFOB P OTHCMP CIRC.&COND. HOLE. -CIRC 462 BBLS @ 5 BBLS/MIN.&1715 PSI. 14:00 - 15:00 1.00 PERFOB N MISC 15,150.00 OTHCMP 2 ATTEMPTS TO FIRE GUNS W/NO INDICATION GUNS FIRED. 15:00 - 20:30 5.50 PERFOB P OTHCMP POH FROM 15,150'TO 11,900'MD. MONITOR WELL.SLIGHT DROP IN FLUID LEVEL 0 BSERVED.CONT TO POH TO 3,453'MD. ""KICK WHILE TRIPPING DRILL"" 20:30 - 21:30 1.00 PERFOB P OTHCMP RU 2-7/8"TBG&PERF GUN HANDLING TOOLS 21:30 - 23:00 1.50 PERFOB P OTHCMP LD 2-78"PAC HT TBG -HOLD PJSM WITH PERF CO. PRIOR TO PULLING GUNS TO 200'BELOW RT. Printed 12/9/2010 2:03:40PM -North America -ALASKA- BP Page 3 of 3 Operation Summary Report Common Well Name: S-41 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/28/2010 End Date: 10/10/2010 X3-00W9R-C(834,132.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) I _ Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:00 - 00:00 1.00 PERFOB P OTHCMP LD DISCONNECT&FIRING HEAD.ZERO PRESSURE ON HEAD.CONFIRMATION THAT GUNS FIRED.CONT TO LD PERF GUNS. 10/10/2010 00:00 - 08:00 8.00 PERFOB P OTHCMP LD 2-7/8"PERF GUNS. -88 JNTS.GUNSTOTAL&17 JNTS. PAC PIPE. -CLEAN FLOOR AND PREP PIPESHED FOR WHIPSTOCK BHA. Printed 12/9/2010 2:03:40PM North America-ALASKA- BP Page 1 of 3 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 10/1/2010 End Date: 10/16/2010 X3-00W9R-C(1,120,415.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/10/2010 08:00 - 10:00 2.00 STWHIP P WEXIT P/U BHA.WHIPSTOCK&MILLING BHA FROM SURF TO 11,857'MD. -SHALLOW TEST MWD @ 900' -PU 195K;SO 137K 10:00 - 17:00 7.00 STWHIP P WEXIT TIH FROM 853'TO 11,857'MD. -SHALLOW TEST MWD @ 900' -PU 195K;SO 137K **KICK WHILE TRIPPING DRILL** 17:00 - 17:30 0.50 STWHIP P WEXIT ORIENT WHIPSTOCK 35 DEG OF HIGH SIDE. -TAG TOL @11,960'MD. -SET 20K DOWN TO SET ANCHOR. -PU TO CONFIRM -SO 35K TO SHEAR BOLT. -TOW 11,926'BOW 11,939'MD 17:30 - 19:00 1.50 STWHIP P WEXIT CIRC&COND MUD -250 GPM,1930 PSI, CIRC 404 BBLS. 19:00 - 00:00 5.00 STWHIP P WEXIT MILL WINDOW 11,926'TO 11,939'MD Nit -RPM 80-90,TQ 10-14K. REC 100 BBLS METAL 10/11/2010 00:00 - 01:00 1.00 STWHIP P WEXIT MILL WINDOW AND NEW FORMATION FROM 11,946 TO 11,957 5-141A.1-1 -RPM 80-100,TQ 10-14K -WOB 10K -290 GPM,@ 2370 PSI,&120 SPM 01:00 - 02:00 1.00 STWHIP P WEXIT CIRC&COND. -WORK BHA THRU WINDOW SEVERAL TIMES W/&WITHOUT PUMP -PUMP SWEEP -250 GPM;2460 PSI. -PU 195K; SO 140K;RTW 145K 02:00 - 04:30 2.50 STWHIP N DPRB 11,918.00 WEXIT ATTEMPT TO TEST TO A 10.1 EMW -MADE 4 ATTEMPTS TO TEST TO 600 PSI -UNABLE TO HOLD MORE THAN 400 PSI ON ALL ATTEMPTS. -PUMP DRY JOB. 04:30 - 08:30 4.00 DRILL P PROD2 TOH W/MILLS TO 820' 08:30 - 11:00 2.50 DRILL P PROD2 LD 6"MILL BHA 11:00 - 11:30 0.50 DRILL P PROD2 FLUSH BOP STACK W/JETTING TOOL. -FUNTION TEST BOPS 11:30 - 13:00 1.50 DRILL P PROD2 PU BHA#20 13:00 - 17:00 4.00 DRILL P PROD2 TIH W/BHA#20 FROM 204'TO 1145'. SHALLOW TEST MWD.CONT.TIH TO 11,867' MD. 17:00 - 17:30 0.50 DRILL P PROD2 CUT&SLIP DRL LINE. -FOUND BROKEN DP SLIP HANDLE MISSING. -FISH FROM BOP STACK. 17:30 - 18:00 0.50 DRILL P PROD2 SERVICE TOP DRIVE 18:00 - 19:00 1.00 DRILL P PROD2 CIRC.&COND. -DROP 1.76"BALL. -PUMP 2 BPM TO OPEN CCV W/2,000 PSI -CBU 290 GPM,1730 PSI. -MONITOR WELL.WELL STATIC. 19:00 - 21:00 2.00 DRILL P PROD2 CIRC&COND. -DISPLACE 8.8 PPG QUICKDRILn W/8.5 PPG NEW QUICKDRILn. Printed 12/9/2010 2:03:58PM North America -ALASKA- BP Page 2 of 3 Operation Summary Report Common Well Name: S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 10/1/2010 End Date: 10/16/2010 X3-00W9R-C(1,120,415.00) Project:Prudhoe Bay Site:PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 21:30 0.50 DRILL P ■- PROD2 CIRC&COND - -ORI ENT BIT&MOTOR TO 35 DEG RIGHT AND TAG TD •■ 11,957'MD. 21:30 - 00:00 2.50 DRILL P PROD2 DIRECTIONAL DRILL AHEAD;SLIDING -11,957'MD TO 12,013'MD -250 GPM,2090 PSI ON BTM,1965 PSI OFF BTM. PU 195K,SO 135K. -MW 8.5 PPG 10/12/2010 00:00 - 17:00 17.00 DRILL P PROD2 DRILL AHEAD DIRECTIONALY.SLIDING 12013 TO 12,365.' WOB 15K,GPM 250,PSI ON BTM 2120,OFF BTM 1955 -PU 195K,SOW 135K -NO MUD LOSS WHILE DRILLING **KICK WHILE DRILLING(D2)DRILL** 17:00 - 18:30 1.50 DRILL P PROD2 PUMP OUT OF HOLE 12,365'MD TO 11,866' MD. -PUMP 30 BBL HI VIS SWEEP AND CLEAR BIT. -NO INCREASE IN CUTTINGS RETURN WITH SWEEP. MONITOR WELL.WELL STATIC. 18:30 - 19:00 0.50 DRILL P PROD2 DROP 1.76"BALL,AND OPEN CCV W/2,100 PSI.PUMP DRY JOB 19:00 - 23:30 4.50 DRILL P PROD2 TOH 11,866'MD TO 204'MD -MONITOR WELL.WELL STATIC. -DROP 1.76 BALL&CLOSE CCV W/1,545 PSI. 23:30 - 00:00 0.50 DRILL P ' PROD2 TOH 204'MD TO 160'MD. 10/13/2010 00:00 - 01:00 1.00 DRILL P PROD2 TOH W/BHA&LD. 01:00 - 02:30 1.50 DRILL P PROD2 PU BHA#21 02:30 - 08:30 6.00 DRILL P PROD2 TIH #21 TO 12,365'MD - -SHALALLOO W TEST MWD @ 1,160'MD.250 GPM &1,000 PSI. 08:30 - 00:00 15.50 DRILL P PROD2 DIRECTIONAL DRILL 12,365 TO 12,763'MD. -250 GPM,2270 PSI ON BTM,1990 OFF BTM -RPM 60,6K TO 8.5K WHILE ROTATING - WOB 15K, PU 195K,SO 132K,ROT 150K -ECD CALC 9.14, ACT 10.02 10/14/2010 00:00 - 00:00 24.00 DRILL P PROD2 DIRECTIONAL DRILL AHEAD AS PER GEOLOGY FROM 12.763'TO 14,421'MD -WOB 15K,RPM 80,TQ ON B 9.5K,TQ OFF B 6.5K -PU 195K,SO 130K,ROT 147'K -GPM 250,PSI ON BTM 2530',OFF BTM -CALC ECS 9.99,ACT ECD 10,55 10/15/2010 00:00 - 10:00 10.00 DRILL P PROD2 DIRECTIONAL DRILL AS PER GEOLOGY 14.421'MD TO 15.257'MD. -WOB 15K,GPM 250,PSI 2587 ON BTM,2250 OFF BTM. -TQ 10K ON BTM,7K OFF BTM,RPM 80 -PU 200K,SO 125K,RT 145K -CALC ECD 10.07,ACTUAL ECD 10.64 10:00 - 11:00 1.00 DRILL P ■ PROD2 CIRC.&COND. -PUMP SWEEP @ 250 GPM,2250 PSI. -MONITOR WELL.WELL STATIC Printed 12/9/2010 2:03.58PM North America -ALASKA- BP Page 3 of 3 Operation Summary Report Common Well Name:S-41 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 10/1/2010 End Date: 10/16/2010 X3-00W9R-C(1,120,415.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:00 - 18:00 7.00 DRILL P PROD2 BACK REAM 15,257'TO 12,585' -249 GPM,1880 PSI. -PU 185K,SO 125K, RT 145 -RPM 80 18:00 - 19:30 1.50 DRILL P PROD2 PUMP OUT OF HOLE 12,585'TO 11,882'. -DID NOT CIRC.OR ROTATE THRU WINDOW 11,939'TO 11,926'. HAD 10K DRAG COMING THRU WINDOW. 19:30 - 21:00 1.50 DRILL P PROD2 CIRC.&COND.@ 11,882. -DROP 1.76"BALL AND OPEN CCV W/1850 PSI. -CIRC.&RECIP WHILE PUMPING HIGH VIS SWEEP,11,882'TO 11,788' -MIN.CUTTINGS INCREASE WITH SWEEP BACK. -CIRC AN ADDITIONAL BTMS UP. -MONITOR WELL.WELL STATIC. **KICK WHILE TRIPPING DRILL** 21:00 - 21:30 0.50 DRILL P PROD2 MONITOR WELL FOR FLOW.WELL STATIC. 21:30 - 00:00 2.50 DRILL P PROD2 TOH 11,875'TO 7084' -PUMP DRY JOB -DROP 2.25"DRIFT 10/16/2010 00:00 - 02:30 2.50 DRILL P PROD2 TOH 7,084'MD TO BHA. 02:30 - 04:30 2.00 DRILL P PROD2 LD BHA BIT GRADE 1-1-WT-A-X-INO Printed 12/9/2010 2:03:58PM North America -ALASKA- BP Page 1 of 5 Operation Summary Report Common Well Name:S-41 AFE No Event Type:COM-ONSHORE(CON) Start Date: 10/8/2010 End Date: 10/23/2010 X3-00W9R-C(1,336,658.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations g (hr) (ft) �yltE 10/16/2010 04:30 - 06:30 2.00 CASING P RUNPRD RU CSG CREW TO RUN 4.5"PRODUCTION LINER 4.5"L-80 12.6LB/FT IBT-M 06:30 - 10:30 4.00 CASING P RUNPRD RUN IN HOLE WITH 4.5"L-80, 12.6 LB/FT IBT-M CSG TO 3325'MD.MU BAKER 5'HRD LINER SITING TOOL. 10:30 - 15:30 5.00 CASING P RUNPRD CONT.RIH WITH LINER ON 4"DP TO 13,701',,- -LINER SET DOWN @ 13,701'., SET DOWN 20K SLIGHT MOVEMENT. **KICK WHILE TRIPPING DRILL,X2 BOTH CREWS** 15:30 - 19:00 3.50 CASING N STUC 13,701.00 RUNPRD WORK LINER. -SET DOWN 20K SLIGHT MOVEMENT. -SET DOWN TO 60K NO MOVEMENT. PULL UP TO 320K,NO MOVEMENT. -WORK PIPE WITH NO PROGRESS -DECISSION MADE TO RELEASE FROM LINER 19:00 - 20:30 1.50 CASING P RUNPRD DROP&PUMP DOWN BALL TO RELEASE RUNNING TOOL FROM LINER. -PRESSURE UP TO 4150 PSI, PINS DID NOT RELEASE. RU TEST PUMP&PRESSURE UP TO 4200 PSI.PINS SHEARED OFF TOOL. -TOP OF LINER(a.10,393'BTM OF LINER(cil , 13,701'MD 20:30 - 21:30 1.00 CASING P RUNPRD CUT&SLIP DRILLING LINE -121FTCUT 21:30 - 22:00 0.50 CASING P RUNPRD SERVICE TOP DRIVE 22:00 - 00:00 2.00 CASING P RUNPRD TOH WITH LINER RUNNING TOOL TO 6300' 18 BBLS MUD LOST TO WELL IN A 12 HR PERIOD. 10/17/2010 00:00 - 02:00 2.00 CASING P RUNPRD CONT.TOH W/LINER RUNNING TOOL.LD SAME 02:00 - 03:00 1.00 FISH N STUC RUNPRD PU 2-7/8"PAC HT HANDLING TOOLS&BAKER 43-3/4"MECH.CUTTER. 03:00 - 06:00 3.00 FISH N STUC 1,590.00 RUNPRD PU 50 SINGLE JOINTS PAC HT TBG&RIH to 1580' **KICK WHILE TRIPPING DRILL** 06:00 - 12:00 6.00 FISH N STUC 11,947.00 RUNPRD TIH WITH 4.5"CSG CUTTER&BHA#22. 12:00 - 14:30 2.50 FISH N STUC 11,947.00 RUNPRD CUT 4.5"IBTM,12.6LB/FT, L-80 LINER @ 11_947' , -228 GPM,2330 PSI,66 RPM. 14:30 - 21:00 6.50 FISH N STUC 1,590.00 RUNPRD TOH W/CSG CUTTER BHA.PULL TO PAC PIPE -MONITOR WELL PRIOR TO TRIPPING WELL STATIC. -MONITOR WELL @ BHA.WELL STATIC 21:00 - 00:00 3.00 FISH N STUC RUNPRD LD PAC PIPE AND BAKER CSG CUTTER. 10/18/2010 00:00 - 00:30 0.50 FISH N STUC RUNPRD LD BAKER CSG CUTTER BHA&CLEAN FLOOR -GOOD INDICATION ON CUTTER BLADES THAT CSG IS CUT 00:30 - 02:00 1.50 FISH N STUC 228.00 RUNPRD rU BAKER SPEAR W/3.947"GRAPPLE&BHA 23 Printed 12/9/2010 2.04.08PM North America-ALASKA-BP 411 Page 2 of 5 Operation.Summary Report Common Well Name: S-41 AFE No Event Type:COM-ONSHORE(CON) Start Date: 10/8/2010 End Date: 10/23/2010 X3-00W9R-C(1,336,658.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 06:00 4.00 FISH N STUC 10,392.00 RUNPRD TIH W BHA#23 TO TOP OF FISH @ 10,392' -KICK WHILE TRIPPING DRILL. 06:00 - 06:30 0.50 FISH N STUC 10,392.00 RUNPRD ENGAGE FISH WITH SPEAR -GAINED 15K STRING WT. -LAY DOWN ONE STAND -MONITOR WELL.WELL STATIC. 06:30 - 12:30 6.00 FISH N STUC 1,785.00 RUNPRD TOH TO BHA @ 1785'. -MONITOR WELL.WELL STATIC 12:30 - 13:30 1.00 FISH N STUC 1,785.00 RUNPRD STAND BACK DC'S. LD FISHING BHA 13:30 - 17:00 3.50 FISH N STUC RUNPRD LD 37 JNTS OF 4.5"IBT,12.6LB/FT,LINER. -CUT JOINT 35.15'. -STUB ON TOP OF LINER 3.79'SLOTTED LINER -TOL 11,948'MD 17:00 - 18:00 1.00 FISH N STUC RUNPRD LD SPEAR,GRAPPLE,AND 4.5"HANDLING TOOLS. 18:00 - 19:00 1.00 FISH P RUNPRD PU BAKER WHIPSTOCK RETRIEVING TOOL (LUG TYPE),&BHA#24. 19:00 - 21:30 2.50 FISH P ._ RUNPRD TIH WITH DP TO 5,887' -FILL PIPE • 3066' 21:30 - 23:30 2.00 FISH P RUNPRD CIRC.&COND. -PIPE PRESSURED UP WHILE FILLING. -HAD TO WORK PIPE TO UNPLUG SINGLE (3/4")JET ON RETRIEVING TOOL. -CIRC AND CONDITION MUD--170 GPM 970 PSI, 23:30 - 00:00 0.50 FISH -- P ® RUNPRD TIH W/BHA#24 TO 7,298'MD. -22 BBLS LOST TO WELL IN LAST 12 HRS. 10/19/2010 00:00 - 02:30 2.50 FISH P RUNPRD RIH FROM 7298'MD TO TOP OF WHIPSTOCK AT 11926'MD. WASH DOWN AT 4 BPM AND 900 PSI 02:30 - 03:30 1.00 FISH P RUNPRD ENGAGE WIPSTOCK W/LUG. -PU 60K OVER STING WT. FIRE JARS AND SHEAR PINS -GAIN OF 10K TO STRING WT. SHUT DOWN AND MONITOR WELL,STATIC POOH FROM 11926'TO 11879'MD 03:30 - 05:00 1.50 FISH P RUNPRD CBU 1X AND HI VIS SWEEP AT 240 GPM AND 1205 PSI -PUMP SWEEP -MONITOR WELL.WELL STATIC. 05:00 - 12:30 7.50 FISH P ■- RUNPRD -ATTEMPT ONITO TO ELL WELL PIPE. -MONITOR WELL&WORK PIPE. POOH FROM 11879'TO 716'MD 12:30 - 15:00 2.50 FISH P -_ RUNPRD LD WHIPSTOCK RETRIEVAL BHA AND WHIPSTOCK 15:00 - 16:30 1.50 BOPSUR P RUNCMP RU TO TEST BOPE 16:30 - 22:30 6.00 BOPSUR P RUNCMP TEST BOPE AND CHOKE MANIFOLD TO 4000 PSI HIGH AND 250 PSI LOW WITH 4"AND 4-1/2"TEST JOINTS. TEST ANNULAR PREVENTER TO 2500 PSI HIGH AND 250 PSI �O L LOW WITH 4"TEST JOINT IUS WITNESS TO THE TEST WAIVED BY JEFF JONES. TEST WITNESSED BY WSL'S MIKE O-lct HEFLEY AND RYAN CIOLKOSZ AND TOOLPUSHERS KELLY COSBY AND BIFF PERRY Printed 12/9/2010 2:04:08PM North America -ALASKA- BP Page 3 of 5 Operation Summary Report Common Well Name: S-41 AFE No Event Type:COM-ONSHORE(CON) Start Date: 10/8/2010 End Date: 10/23/2010 X3-00W9R-C(1,336,658.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor: NABORS ALASKA DRILLING INC. UWI: Active Datum: S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 23:00 0.50 BOPSUR P RUNCMP RD TEST EQUIPMENT AND INSTALL 6-15/16" ID WEAR RING,BLOW DOWN CHOKE AND KILL LINES 23:00 - 00:00 1.00 BOPSUR P RUNCMP PJSM,MU CLEAN OUT BHA#25:REVERSE CIRCULATING JUNK BASKET,BOOT BASKETS,STRING MAGNET AND CASING SCRAPER 10/20/2010 00:00 - 01:00 1.00 CLEAN P RUNCMP MU CLEANOUT BHA AND RIH TO 247'MD 01:00 - 05:00 4.00 CLEAN P RUNCMP RIH FROM 247'TO 10405'MD. FILL PIPE EVERY 30 STANDS\ -170K PUW,135K SOW 05:00 - 07:30 2.50 CLEAN P RUNCMP DROP BALL AND WASH DOWN FROM 10405' TO 11958'MD AND 4 BPM AND 1730 PSI. TAG TIE BACK AT 11958'MD. RIH TO 11970'MD. 07:30 - 10:30 3.00 CLEAN P RUNCMP CIRCULATE AND CONDITON AT 3 BPM AND 1251 PSI 10:30 - 12:00 1.50 CLEAN P RUNCMP DISPLACE WELL TO SEAWATER AT 5 BPM AND 1700 PSI 12:00 - 12:30 0.50 CLEAN P RUNCMP MONITOR WELL,8.5 PPG SEAWATER IN AND OUT. POOH FROM 11970'TO 11910'MD. DROP BALL AND OPEN CIRC SUB WTH 2050 PSI 12:30 - 13:30 1.00 CLEAN P RUNCMP CIRCULATE AND RECIPROCATE FROM 11910 TO 11816'AT 427 GPM AND 2120 PSI. ROTATE AT 20 RPM. SLOW PUMP RATES TAKEN 13:30 - 22:00 8.50 CLEAN P RUNCMP MONITOR WELL, 8.5 PPG SEAWATER IN AND OUT. LD 4"DP FROM 11910'TO 247'MD 22:00 - 23:30 1.50 CLEAN P RUNCMP MONITOR WELL, 8.5 PPG SEAWATER IN AND OUT. LD CLEANOUT BHA#25. —1 CUP OF FORMATION AND METAL DEBRIS FROM RCJB AND 1 GALLON OF SAME FROM BOOT BASKETS 23:30 - 00:00 0.50 CLEAN P RUNCMP CLEAN AND CLEAR RIG FLOOR. PU FLOAT SUB AND MULE SHOE. 10/21/2010 00:00 - 01:30 1.50 CLEAN P RUNCMP MU MULE SHOE AND FLOAT SUB. RIH WITH STANDS OF DRILL PIPE TO 3527'MD 01:30 - 02:30 1.00 CLEAN P RUNCMP CUT AND SLIP 117'AND DRILLING LINE 02:30 - 05:00 2.50 CLEAN P RUNCMP POOH FROM 3527'MD LAYING DOWN DRILL PIPE. 05:00 - 07:00 2.00 RUNCOM P RUNCMP PJSM,RU TO RUN 4.5"VAMTOP COMPLETION �^VQ 07:00 - 00:00 17.00 RUNCOM P RUNCMP MU JEWERY AND RIH WITH 4.5"12.6#13CR85 (/ COMPLETION TO 11600'MD. TORQUE TURN TO 4440 FT/LBS KICK WHILE TRIPPING DRILL 10/22/2010 00:00 - 01:30 1.50 RUNCOM P RUNCMP RIH AND TAG UP ON TIE BACK RECEPTACLE. PICK UP SPACE OUT PUP. 01:30 - 03:30 2.00 RUNCOM P RUNCMP RU AND REVERSE CIRCULATE 148 BBLS OF SEAWATER TREATED WITH CORROSION INHIBITOR FOLLOWED BY 70 BBLS OF CLEAN SEAWATER 03:30 - 06:00 2.50 RUNCOM P RUNCMP LAND TUBING AND RUN IN LOCK DOWN SCREWS. DROP BALL AND ROD. PRESSURE UP TUBING TO 4000 PSI TO SET PACKER AND TEST TUBING FOR 30 MIN Printed 12/9/2010 2:04:08PM Page 4 of 5 North America-ALASKA- BP ,`,1,1111.1f, Operation Summary Report Common Well Name: S-41 AFE No Event Type:COM-ONSHORE(CON) Start Date: 10/8/2010 End Date: 10/23/2010 X3-00W9R-C(1,336,658.00) Project: Prudhoe Bay Site: PB S Pad Rig Name/No.: NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 12:30 6.50 RUNCOM N DFAL RUNCMP TUBING FAILED PRESSURE TEST. PRESSURE DECREASED 250-PSI IN 30 MINUTES. RETESTED WITH SAME RESULT. WORKED THROUGH TROUBLESHOOTING PROCESS AND ISOLATED DOWNHOLE LEAK TO BELOW PACKER. SUCCESSFULLY PRESSURE TESTED VA AND PACKER TO 4000-PSI FOR 30 CHARTED MINUTES. CONFERRED WITH DRILLING SUPERINTENDENT,ODE AND DRILLING OPERATIONS MANAGER ON PATH FORWARD. AGREED AND TOOK DECISION / TO MIRU SLICKLINE UNIT TO FISH BALL AND ,/ ROD AND RHC PLUG BODY AND SET CAT STANDING VALVE TO ALLOW RETEST OF TUBING. 12:30 - 13:30 1.00 RUNCOM N DFAL RUNCMP WAIT ON SLICKLINE UNIT TO ARRIVE. 13:30 - 16:30 3.00 RUNCOM N DFAL RUNCMP MIRU SLICKLINE UNIT. PJSM ALL CREW.RU SLICKLINE PRESSURE CONTROL EQUIPMENT. PRESSURE TEST LUBRICATOR TO 3500 PSI ROLLING TEST. 16:30 - 18:30 2.00 RUNCOM N DFAL RUNCMP RIH WITH RETRIEVING TOOL AND RETRIEVE BALL AND ROD. WEAR ON SIDE OF BALL 18:30 - 22:00 3.50 RUNCOM N DFAL RUNCMP RIH AND RETRIEVE RHC-M PROFILE 22:00 - 23:30 1.50 RUNCOM N DFAL RUNCMP RIH WITH STANDING VALVE AND SET IN XN NIPPLE. 23:30 - 00:00 0.50 RUNCOM N DFAL RUNCMP PRESSURE TEST TUBING TO 3500 PSI FOR 15r MIN. RD TEST EQUIPMENT 10/23/2010 00:00 - 01:30 1.50 RUNCOM N DFAL RUNCMP POOH WITH SLICK LINE AND RIG DOWN SLICK LINE BOPE. 01:30 - 02:30 1.00 RUNCOM P RUNCMP RU AND PRESSURE TEST TUBING TO 4000 PSI FOR 30 MIN. LOST 16 PSI IN THE FIRST 15 MIN AND 2 PSI IN THE SECOND 15 MIN. 02:30 - 03:00 0.50 RUNCOM P RUNCMP PRESSURE UP ON IA AND SHEAR DCK WITH 2700 PSI. PUMP DOWN IA AND TUBING TO CONFIRM OPEN 03:00 - 04:30 1.50 WHSUR P RUNCMP INSTALL TWC AND PRESSURE TEST FROM ABOVE AND BELOW TO 1000 PSI FOR 10 MIN. BLOW DOWN ALL LINES AND SUCK OUT STACK 04:30 - 07:30 3.00 BOPSUR P RUNCMP PJSM, ND BOPE STACK AND SET BACK. 07:30 - 12:00 4.50 BOPSUR P RUNCMP PJSM, NU TREE AND ADAPTER FLANGE. TEST TREE TO 5000 PSI HIGH AND 250 PSI LOW FOR 10 MIN AND ADAPETER FLANGE TO 5000 PSI FOR 30 MIN. 12:00 - 14:00 2.00 BOPSUR P RUNCMP RU DSM LUBRICATOR. PRESSURE TEST LUBRICATOR WITH DIESEL TO 250 PSI LOW AND 3500 PSI HIGH FOR 10 MIN. PULL TWC 14:00 - 16:30 2.50 WHSUR P RUNCMP LITTLE RED REVERSE CIRCULATE 77 BBLS OF DESIEL DOWN THE IA AT 3 BPM AND 1400 PSI. ALLOW DESIEL TO U-TUBE TO TUBING FREEZE PROTECT TUBING AND IA DOWN TO 2200'TVD/2270'MD 16:30 - 19:30 3.00 WHSUR P RUNCMP RU DSM AND TEST LUBRICATOR TO 3500 PSI HIGH AND 250 PSI LOW FOR 10 MIN. PULL TWC. INSTALL BPV AND TEST FROM BELOW TO 1000 PSI FOR 10 MIN. REMOVE SECOND ANNULUS VALVE, INSTALL GAUGES AND SECURE TREE. Printed 12/9/2010 2:04:08PM North America -ALASKA- BP Page 5 of 5 Operation Summary Report Common Well Name: S-41 AFE No Event Type: COM-ONSHORE(CON) Start Date: 10/8/2010 End Date: 10/23/2010 X3-00W9R-C(1,336,658.00) Project:Prudhoe Bay Site: PB S Pad Rig Name/No.:NABORS 7ES Spud Date/Time: Rig Release: 10/23/2010 Rig Contractor:NABORS ALASKA DRILLING INC. UWI: Active Datum:S-41A Actual @64.98ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:30 - 23:00 3.50 WHSUR P RUNCMP LD BAILES, PREP FLOOR, RU BRIDLE LINES, MOVE SATELLITE CAMP,SHOP, PREP PITS FOR MOVE,CHANGE TO 5.5"PUMP LINERS 23:00 - 00:00 1.00 WHSUR P RUNCMP LAY OVER DERRICK. SECURE WELL AND RELEASE RIG TO S-129 AT 00:00 ON 10/24/2010 • Printed 12/9/2010 2:04:07PM S-41 A & S-41 AL1 , Well History Date Summary 10/22/10 ***WELL SHUT IN ON ARRIVAL***(assist nabors rig 7es) PULLED BALL AND ROD @11,915'SLM. PULLED 4 1/2" RHC PLUG BODY @11,920'SLM/11,916' MD. SET CAT STANDING VALVE IN XN NIPPLE @11,920'SLM/11,916' MD. ****JOB STILL IN PROGRESS,WSR CONTINUED ON 10/23/2010**** 10/23/10 ***WSR CONTINUED FROM 10/22/2010***(assist rig 7es) RIG PERFORMED PIT ON TUBING TO 3,500 PSI. (test passed) LEFT 4 1/2" CAT STANDING VALVE IN XN NIPPLE @11,920' SLM/11,916' MD. 10/24/10 T/I/O=0/0/0 Pulled 4"CIW H TWC#257 thru tree @ 102" using 1-2'ext. Post Nabors 7ES tree test. Set 4" CIW H BPV# 150 thru tree @ 102" using 1-2'ext. Nabors 7ES RDMO 10/24/10 T/I/O=0/0/0 Performed LTT against SSV(barrier) Pass; R/U lubricator&PIT-Pass; Pulled 4" CIW BPV #150 w/1-2'ext @ 96"; Post Nabors 7ES 10/24/10 *WELL SHUT IN ON ARRIVAL***(post-rig) PULL ST#4 BK-DGLV @ (7099'SLM) (7111' MD) PULL ST#5 BEK-DCK @ (3733'SLM) (3742' MD) SET ST#5 BK-LGLV @ (3733' SLM) (3742' MD) SET ST#4 BK-OGLV @ (7099' SLM) (7111' MD) RIH W/4-1/2" GR TO PULL CAT VALVE ***CONT. ON 10/25/10 WSR*** 10/25/10 ***WSR CONT FROM 10/24/10***(post-rig) PULL 4-1/2"CAT STANDING VALVE @ 11889' SLM(11915' MD) DRIFTED TO 12046' SLM W/2.50" SAMPLE BAILER(-TBSP OF FINE SAND) UNABLE TO MAKE HOLE PAST 12,046' SLM(POSSIBLY DEVIATION W/LIGHT FILL, DID NOT WORK HARD). RUN PETRADAT GAUGES(GOOD DATA) HAD TO CHANGE THIRD STOP TO 12,080' MD/8896' SS DUE TO SETTING DOWN HIGH. *** RIG DOWN TURN WELL BACK TO DSO*** *** NOTIFY PAD OP OF DEPARTURE*** 10/31/10 ASRC Test unit#1, move in, begin rig up**job in progress** **inlet well S-41, outlet S-42** 11/01/10 ASRC Test unit#1,complete rig up, POP well**job in progress** **inlet well S-41, outlet S-42** 11/02/10 ASRC Test unit#1,flowing well, increasing choke and gas lift, monitor for solids**job in progress** **inlet well S-41, outlet S-42** **conduct PSM/well control drill and safety drill @ night and day shift safety meetings** 11/03/10 ASRC Test unit#1,complete 12 hour test**job in progress** **inlet well S-41, outlet S-42** 11/04/10 ASRC Test unit#1,complete 12 hour test,continue flow, phase II called divert well down flow line,freeze protect surface lines and secure location, go to weather standby @ 9:00 am **inlet well S-41,outlet S-42** 11/05/10 ASRC Test unit#1, arrive back on location, dig out, begin rig down **job in progress** **inlet well S-41,outlet S-42** 11/06/10 ASRC Test unit#1, RDMO**job complete** **inlet well S-41,outlet S-42** Page 1 of 2 S-41A & S-41AL1 , Well History Date Summary Page 2 of 2 0 5 55W11 c) �) 0 rr0 -, . CAC CO gSO TC> XI O O O O O CD 0 0 0 0 C C O Cp Cp - 0 .t .+..tip 3 a s » » aaz Z = a c a 3 •$ , 5 a) ? a . > > > 3 CC o 0 0 o D 1 D o c °� ^1 M a s 7 a 0 7 7 O S ° z m Cp ° y m < 0 r a ° a a g • a m m a u; � � 3 w m a m a — 5 0 - m o NJ o A zrcp G O D .. m 7 N 7 N0 V x N. ° A CO Cn m 3 O O 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 V 0)0)0)0)01 CD 01 A A A W CJ W NN N • • •0 0000 CO N CO 0)W O V A-+V A-. CO Cn N W 0) F')CO 0)W CO 0W-‘00 co m V 0)A W N O m 0)m (. 0(00 c0 m 0)W 0) m W r W W m aU1-mm mmCn W in-,mA V N O W m N O W C)CD mZ 3 01 O CO UD NCO N W 00 W 0) C').0.- 00 W W N 0)- 01--4000... 0 O O Z Z Z CO C/) 0) C (n CD CD v W 0 CO CO co V D .....v 1, a1. I> � c' m2 cn CO 0 0) O -4 3 D 'o D Dp o.0 CD 0) w CD-' > z ° o m o m ?Eg \ o CO CO CO CO CO CO 0 CO 00 O CO CO CO CO CO CO CO Co Co V V 0)0)0)0)m 0 Oo c0 V W \ O 5 al d 0 A•W W A W W A A 0)0)0)0) 0)0)V m W m W CO W CO C 0)CD CD - w0 Cp a o c0 O O C 7 0 m O O O m N OD W A N W N V O W W m V W Ut O O m V-4" CO N Cn A N N O. > p CO-+CD V CO V CO N 01 Cn WW-‘00) V O)W O N Cn 0)0)O O.,°. - C O N O co '" a , Cn N N 8 O N . O N m TO CA pa o m x cCi1 > A Pv -' -' (7) .--) 0 'o W N m A _ O 0) N N �C C-,OOO 0 OO CO CO COOCOm W mm00)0) 1 - N N Co 01-,0:-.101 W��V m A O V A A W m W V m m m � m A 0 m m 00 A 0n 00 m0 m V A ACO V ANON^ C N O CO 0 V 0-'A A W V 0W m V -'0 A CO A W N W 01 N CO A CV O.. D ? ' (0 -. 0 � a m CD T Co m m m m m mmmmm m N N m m m m m m m mmmmm Cl) CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO 00 CO CO CO CO W W A A A A A N CT 0)O) 0-4-4-.4 0 000-4,10 N A W W N 1 0 CO W C V CO N O CO W 00A-40 CO A 0 OW-4-.0 C 0 o-'-'b N 0)W ACOA CO m W CO W 0)0)0)00 Om NC•)V o A CO W W A CO C W CO-. 0)C7O m V W W CO 01 C N CO W m 0- 0 a co W p co C _ ■ - _ _ O 1 0 . — N (0000-..1 A CO C N 0 V A N CO V Cn N O) -4010014 < V CD 0A A A CD A m 0 m 0 W V N O 010-401A O W A-.V N m - C b mAm W -'COC N N N N N NO OCOC V 0 ?W V A .)3 m W^ O W CO- OACD -.m V ON 00W W W V N00A-N WO .0 U) > r z -I C) z 3 ° 3 -I3 co -I -I < < m c CI ' 0 0 2 O a CD a a a D << D N C Jo y P. a a a O ?CO 000 0. C7 (7 AA. Z a) 7 ° .3. W W m F op a a °0 z zzzzz zzzzz zzzzz zzzzz zzzzz V V Z O 7 ° 4 0 000 Mm Mmrnmm mm v r V 000TT A mmO N mm V m 00000 -4-4�OO O V mm W N ° ° 0 ° W W n y 0. 3 R N CD V 0W O A m W A A W m N 0m 0--CO CO�A A(/ a 0 n ° p CD 7 0 � _ 4. -. A W V-W Cn CCOOm0)CCD AAN-4CCOO 0Clf-_A CO V AO�x Cl) N Z ID 3 N 7 7 3 C. m ° 7 7 0 (D c Di )O 1O »' mm � 0 � 3 cil s FR < f3f°. 3 a 0 0. 1 3 0 .. D m mmmmm mmmmm mmmmm mmmmm mmmmm - 2 a 0 •'• O) 000,00) 0)0)0)0)0) 00000 00000 C CD C CD CD . .. _ 7 C7 W W N N N _0 0 O CO CO CO CO CO m m V V -‘0.-404 O)O)O)O)m •• W O W Cn NCO CO01 CCOO)N O 0)CJO V W ? N -4-•A:-.4W N 0000 000)A CO A O)2 m 5 A mmm_.A m(OOm CO 0)-'N W m 01 W V V 0 V 0 0 0 a < CO CO N m W W A 00N0-.4 m V N CO C +Cl1 N m A CO V-+01 A v . NJ 0 1 co Cn CO C71 NJ C.) 0) 7] O -■ K O 6 2 0 O m A O O N 7 CO 0 0 0 CO m m O CO y 0 = m o Z K 3 A . cn O O`� x v C o a c a 0 m o W o a a a O O 3 a _ n 0 -'CO CD O)m W C0�ACA NCO V CO 0) O C CD A W O O 0I O O C D 0 0 CI 0- 0- N o -lc A N W 0)m V m CAO CnNCCOA -,4).4.-.4 V V- Cioab C. r CD CD N D) N 0)-'0000 COO)A A0 N V CO W m -COCO0)W 0)000N0...CI) ON z C O Of I- I- CO (D ---. 1- CA Cn01 Cn 01 Cn Cn Cn Cn Cn Cn CA CD01Cn cn 01Cn Cn CnC CA CA n CA C CO mO COommm WWWWW mmm mCO Q CO mamma mamma CO CCCOCOCO CO mCOCOma CDCOCOCOC z 5 0 0 0 0 0 0 O -.-.-. ..... CD.-'-'- -. 0,�G CO O N W Cnmm COON W AAC01Cn 01am0)A W N-•0co3a N 0.-4N-40 W A CD A W V A m -4C004,0 O)W 01 m m C 7 W m W m O m-'0)G1 -'-'C.)-'CO m A O V C.) NCJmmmN 3 CO W---CO 0)CJ W m 0)m V N0 Om N-+V 0Cn N-AVCO O) mamma) mmmmm mamma mmmmm mm0)mm 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 0 0101000 m A A A A A A A A A A A A A A A A A A A m OO 0 CO CO CO CO CO mm V V V mmmm 01010 CC..a CO m W-mm NCO0)W 0 V A COCn NCO0)N CO 0)C.)N 0 x o, CO W V ONA mmmmm mC A W Cn W NOm W °Immo N N W W O N - m -'-' NJ.-.-4N.)-4....o a O CO N O ti A W m W N 00 Z ZZZZZ ZZZZZ Z Z Z Z Z ZZZZZ Z Z Z Z Z N N V -4-4-4-4-4 V V V V V -4-4-4-4-4 V V V V V -4-4-4-4-4 O 00000 00000 00000 00000 O O O O O o 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 Z r 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 y 0 W • N N N W W W W W W W W AAAAA AAAAA A W W W W C N m 00-,N 4, 60V CCO O---N NNNN ■ 0000 V m . a 'A' W N CO A CO W 01 V m m V C�0 O-, 4.0�m N m m W C CO O.D D O A * ***** ***** ***** * *** ***** V d ',--)-0 C A A A A A A A A A A A A A A A A A A A A A A A A A A , v CO mmmmm mmmmm mmmmm mamma mmmmm..1- co m CD Cn m m m C C Cn Cn 0n a o C Cn C m m o � ' o CO m m O m m Cm m m C COm Cm CO cO O cCcO CO CO CO ro t m cn m O - vmoom V m00007, N W Amm m V mc00 -sN W ACn mC)71 V-) 0 C O CO CDC.)-'C0 .1 )).0.N)-'b a m m A W N N O V A m . a '� / r- .r04C'� A C.) 0)-'0-'N CO 0-40)W -'01 0)CO 04,CO 0-400)CO..:C D Q 3._. C A,1 m -' O 3 m n N 0) O O O A A A j j -.0006 A A A W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W N N N N N N N N N N N 0 0 W 0)0 J J J J O) 0 0 01 U U A A A W W W NNN N -0 0 0(0(0(00) W W J J 0 W O V A O J A-W U N W U N W 0 W 0 J C.)01 -+ W U N W U N O 0 W 0 0)C.)0 .1. -W U-W U N O 0 0)(11 W N O (00)0)01. N-.V 01 A W N-0 WW-40W NON V 0 A W N 0 0 W W O)U W N-0 W J 0). C.). 4,6M4,6 A W(O U U 0) 0- 664,6.-. 66666 O)0)N A U J J B O O W A W A A N) O(0 01 N A AA00U m-4-4o6 004,-(o 00AJ A J N0c0 J V A A0)0 OU W W W 00 W 0 A(OA A-. O 0)0)0)0)0) 0)0)0)0)0) (0(0(0(0(0 (0(0(0(0(0 0(00)0) 0) 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) 0) 0(0(0 (0(0(0)0 00000) 0)0)O) -( -) O NNNN N)0000 00)00) J 0)0)0)0)0) J v J V J W W W(O (0(0000 N N W 664),M:., W U W A 67)).-)Mb A W O0A 666-.6 0 0 00 W b -4 A 6M66.-) 04)6N-. A�00"• n -4000 N U W ONO 0o W N W 0) (.)01 NN- 00(0 0) - AUO- -.coo- m - mm- - N0- J J ONAO.; __ W W 0 N 0 N N N N 0 W 01 01(0 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 W1,00..40 A N O O N V W 0 W W W f0 0 W 0) -4 -40)0) V W V V V J W V V W 01(001(0(0 (0(001(0(0 01(001(0 V 000 W ONNN V (OA A W W NN-(0 U NNJ N 0001 N N W 00(00 00(00 W 0N0 J W�^• (D 0) N)01(.) C.)01 -4N)0) A N O D U .A.01(0-so -10)01010) W W A 0 N 0(001010 W A 0 W A comm-.10 010)0)0101 W J U W 0101010101 co W W Oo W 010)010101 mmmmm W N W Oo W 0)010)010) 00 1 W W W mmmmm Oo W W W m co o m m o o o o o (o o o co m o o o o o co o o (0 o o m co o(o m m c(c o(o o m m o o o (0 o 0 m 0 01 U U U A A A AAA A U 0 01 01 U A A W W W W W w W�W W W W W W W W W W (0 J 0A W A U J W O O O W J 0 W N O 0o V OA O O O O O co-spa C UJ J J V U 01 601 4, (00)(0-G) UNO V A U U U 6 0 0)01 0 Co 0 W Co W-W U U 0)O U -•0 N A W Co-0)5i 0. NNU(00 014010)0) 0.400A A(00-.W AA-.00 W N0 W U AO(o W W 0J(ONO 0 O (D W D1 W W W W W 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 0 0 0 0 O O 0 W WW-4-4.4 0 0 0 U U U 0 A A 0 W W j N N 000(0(0 0 W C W J -. 0 N W6 W0.4 W U N 0 W OA O N W U N 0 0 W 0-.W UJ N-J O O 0 0 0J 0 OW N N O O 0 0 0 0 A U U A A U W W-s O W J 0 J N N O 0 W J 0 maw-.6 W J 0 U A G 0 G y (O W 00-0o :-.16666 0 N A 0 J CJ 0)V W 64,L466 0 V A W U U-O 00)N(O(O 6.-4666 (O A m O N J 0 W 0 W OU-0 m-‘66 co J W W-N -0-N J W 00 c0 A Oc0-A(0 W O AOU 4,-0(0N m-406,„ 0 > 6 D p zzzzz Z Z Z Z Z zzzzz Z Z Z Z Z zzzzz Z Z Z Z Z zzzzz Z Z Z Z Z zzzzz Z Z Z Z (n W W W W W W W W W W W W W W W W W W W W W A A A A A A A A A 0 0 0J V V J J J W 0)0)01010) (0(0(0(0)0 (00000 O O j N N N N W W W W W A A A AAUUZ ▪ A-.4(0-.N A 0 W(O N A U V W O W A 0 W O N W U -4(0-.470 V(0 W 0 O W U 0 W O N A 0 W O N - WO-.0W J A 0 0� 0 J W W N J W W A W 0(0(0 (0 W 07401 U A W N 0 0 0 0 (0(0(09)9) mmmmm (n 64,6.-46 U J U J 666-.6 J U N J W -A J(O W 0 0 0-W N 0 W(O A A C.)O N (00)N W 0 A A 0 0 xi Z A . 0)040) OcONU A C.) -4(00)0 W J-J N U00U(0 A(001NO 4,-0A W -.A W W U C.)0)(0 (0 NNO W,„ (0 D co a y mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmm -4-4-4-4v V V V J V -4-4-4 V J J J J J 0 0 0 60000 0 0 0 0 0 00000 0 0 0 0 0 0 0 0 0 U A A A W W W N N N N O O 00)0(0(0 (00)0)0)0) .4-.4-4.4 6 66660 UUU A A A A W W m JANO V ONO-.4A -.001W0 JANOJ ANCOJA N(OJAN (O.AN W JANO V CNOJU W O W0 N(00-.6 O 0 J O W 0,200-‘W 0(0 U O A O A O U O U W U U 0 J W O U O U J W(0 U op-.64 U Co 00 W J (0 Co(0 (0 N 000 0740 J 4) (.4 Co U-UO Co AU 00 (n)0 J W JU A 40 U co 0xm (0 U O U W W 0010N) U O N A J N W J J W N U 0 N V W A U 00-. W O U W W -W N N W N(O V(0 W 0 0 0 0 0 00NAO U N NO J W Nc0 W NO J N N V O -sON O OA N-W .0 D 0)N N N v .-466.-46 6-.66M W v V J N W W W N)V (O 6M6 -.6 0 0 W V A N(0 N 0)- 0(O A A m r U(OA AN A -0N W W 0N- -N-U(J W 0(O A J ow-46w U AU 0-. A-N-U 74000-) W 0(0(0.,. to (06060c060 6060(UO(0(0 ((0((0((0((0((0 (0((0((0((06 (00c0((0)0c0 ((0((0((0((0((0 (6000(O(UO((0 (060(UO(UO(UO ((0660(UO(0(0 (UO(UON((0 W W W W W 010101010) 0)0)0)0101 0)01010101 mmmmm W W W W W 010)0)0)0) 0)0)01010) 0)0)010101 01010101 Z a a a j A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A 0 N mNNNN N IJ W W W W AAA A A A U U U UUUO 0)010101-4 W W W W(0 6666 N A 0 W 0 W U 0 W 0 NAU J W O C A 0 D O N �U 0 W O N A 0 W O N A 0 W es a W A U W N O0NJ N OU OU O0U A A N N(O(O0 JU A W N 06W W J J0U U J A A W OC A O (0 N 0 A 0 O J W-W U 0 N 0 j N U W O 0 (O N 0 0 N O y 7 0 74 0(O W -(0 W J A W W W J A O U 0 0 A W W N c0 A W 0 J CI)v(0 mmmmm N mmmmm 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 mmmmm U U U U U U U U U U U U U U U U U U U U U U U U U U U U U (n A A W W W W NNNN 00 00(0(0(0 (0010)0101 J J V V 0 00000 U MAAA A W W W W NNNN,. d A N c0 A (O 0 W W U N c0 0 A W 0 W -.6,01W0 W U W O W U W O W 01 W W 0 W -‘030W-, W 0 W 0 W O U U (0 W 0(O- W 01 0 W(0 N 0 W-+0 O U O A O . (00)0)C.) W W W W W A O U O U -.0)m-4p 9)C.)010)C SOU N V J c 0 A O(O J Co--c 0 W J--J W A W(O U V A U J N U W A Co N)NAJ U 0 0 6 Co- A W Co N 0 7 W 0 W 0- 000(0-.4 J W 0(11 A J U U-N N 0 0 A J W W W O N W-(11 W W c0>O U O U N W J 00- ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ Z Z Z Z • -4-4-4-4-4 J J J J J -4-4-4-4-4 J J J J J -4-4-4-4-4 J J J J J -4-4-4-4-4 V J J J V J J V J J J J J V 0 0 0 0 0 00000 0 0 0 0 0 00000 0 0 0 0 0 00000 0 0 0 0 0 00000 0 0 0 0 0 0000 N O 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 N N N N N N N Z r N N N N N N N N N N N N N y» W - 00000 0 0 0 0 0 00000 U U U U U 00000 U U U U U 00000 0 )C.). A A AACUU UUU 010 mmmmm V J V V V 019)010101 01)0(0(0(0 (00000 -+NNN o C N - .-46M6(71 J W O N W C))0)0)(0- M 4,6 1,-.1 6 6M4,66 O N C J U J (O-W U J (O-N A 0 W O N A 0 W O N A 0. ▪ (0(00(0 -J (11 N W W W C.)01 (0 A W W W W O J U A W W N)- 01(0 -4 0 01 A W N - 0(0(0(0 0101 .40)0) U U A N J(D • A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A • 0) 0)01010) W W W W W 0101010)0) 0101010101 010)0)0101 010)010101 010)0)0)0) 0)010)0101 0101010101 • 000010 0 0 0 0 0 00000 001 0 0 U 00000 U UUUU 00000 0 0 0 001 00000 U U 0 U m O CO 0)0)010)01 0101010101 010)0)0)01 0)0)0)0101 0101010101 0)0)010101 0)010)010) 01010)0)0) 01010)0101 (0(00-.N W W W W 01 CO j - N U U 0 J W W W A 0 0 J J W 0 O O A N N W A U U 0)V V W(O(O O N N W A A U 0-1 n C O U N 0 0 W .(.0)0). N) 66:-466 -O V U N O V A (0 0 W O W U N O J A W U N(O J A-W U N (001C.)0 0. W(11 U U(0 A(O(O W 0 W(O 01 0 0 J U U N U -.N)0 W-. W J N<J U W O N A U V 0 V(O-+ N N W W A 0 W(O A...(D 0 C c c B O ° . 3 • mm > m o co 3 c2 0 'R o m v N NNWO Tao v o mioo.� o .. a P 0000? 3 m V A o O -,co CO W 6 60,666 601000 Ul UlA A A 44,4,4)..1, 4.4..1,AA 4,4.4.4,.c, 4.4.4,A A W J N 3 A C.) .)W N N N —O 00 0(0(0(0 W W W J J N N 0)0)0) 00044 A W W W N A N W C N O)W 0 N W 0 J A—W A W U)N (00)W(O O) W O J A -.44,-)C00 N(O O)N(O W m(0.. 0 AN OW NU1A W CO W V O)A W NO(OT 0)U)W W- CO W NU)A W O(ON W W Wx -1 O A O J N NA0001 O N0 Co Co T(O OJ l J-U)N J--NUO OAJ U4) 3 0 0 0 .0 O W UT N)N N)-(O O(O 00N0-> N W W A J --40->->M W T W N 0 N N(O(O 0 v 0 CC) 9, G W C D X .< O W 0)0)0)0)0) 0)0)0)0)(O (0(0(0(0(0 (0(0(0(0(0 (0(0(0(0(0 (00)0)0)0) 0)0)0)0)0) W 0)00(00) W 0 0 0 O N A T W W W J T A N O O pm-.4-4-4 J W W W W 0 U) 6iO4).-‘4, W O W J-, —A(O N N M6.4.64, N NTT N -,4).-46:1). W-•6-,6 5 co CO O W J(O w J W N 0 N(O J(O(O 6-46-“.1 J J 0—J W W O W N N A W U1— ..?.a m (^) 0 DDD C (O w w w T m 555 0 — 3 CO N CO a o c V -4-4-4-4-4 V J J J J V O W W W T T T m T 0000,m N U N A-A A A W W W Z O 000 O 00000 OOJ JJ V OUW W W 0 T4 ANOO V A NO JU H T TUJ-T W J(OUO 0-A T U mfON W G 0U1 U O W-+ m W(O W TU ^C O N J(0 A A A W W W T N 4UO-+U1 N 0 A 0)-> A N O W W UV N O(O U -W T N ....0 7, a m CD co N N co 0)0)0)0)0) 0)0)0)0)0) coma, 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) to (0(0(0(0(0 (o o O(o(o (0(0(0(0(0 m c0 co 0 m (0(0(0(0(0 (0(0(0(0(0 (0(0(0(0(0 CD A -A A W W W W W W W W W A A 0 U1 T T T T W J J -4-4-4-4M 0)0)0)0)0) T m N O O O 0 co--4- J J J 0 N W Ut O A J W coo-“am N N O W J T W W N C 0 T NU1 N 4,6W-•-a U U W W .-.1-•-•60 T N O(O A 66)4,6,-J N OO(O(O a N U O W UW N O N(O U 0 .-466C06) -,W-N W U)0-a A CO A W W T -4-.,OWN J N-W O ..... 0 7 CO 0 3 m 0 m C 7 A 44444 W W W W W W W W W W W W W W W W W W W W W W W W W W W W W -' _ O O O O 0 0(O O(003 W W W J J J J T T T U U -A A A W W W W N N j A CO-40N0 )N O J T N O N U1 NO-44N 0 T W W UNOT W o J A J < N O 4P 0 0 0)-)MN-4 N W W J N J N T O UW W->N W W A A A A W N->0 m C O W O N NAV CO N 0 Im Co 0.1 J ? NO-J N .-0-A T N0) 0 N 0) A(J AOW W W W o W x( r r* C N Jo 10100 m 0 ** -1 (n 0 1 Z ZZZZZ Z Z Z Z Z ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ N N N N N N N N N N N N N W W W C C W W W W W W W W W W W W W W W W W W 0 0 0 U T T N N J J W W W(0 (O O O O O N N N E W W W A A A U 1 U U U l T T Z 0)O W W J 0 W T O N 0 W A J 0 A J O W T O N U)W W T (O N GO J O W U W O N ■ A 0 0 0-W A U0)J W O O O 0 0 0 0 N W 0-W N T A W W 0)O A J (n ( — (0(0 Co(OA -a A 4,00 W(0(0 N(O (0(0 lo-O CO 666 V —W A J— W Co Co NT Z A 005 0 J CO N-0)0 -Co O CO J O A N N T -a W-a N O CO N W 4)A J U1 U)A N co U)O A CO x CO > A D m mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm N J J N N J -4-4-4--)--, J J J N N -4-4-4-4-4 J J J J J N N N N N N N J J J 0 co (0(0(0(0(0 0 0(O W W W W W W W W W W W W W W J J J J J J J W 0)0)0)0)U) m A W W N N 0 0(O(O W W V T T Ul A A W N 0 O W T Ul W N O(O J U)W (O N W W W W W W W W W-W J N U O N U 0-N W A A N O J W 0 A W N AM-4M4 0 J T A N UA W O T O W O A W O A W T T N O A W T A UU O W N W A i? m O O O N- W N A N 440 W W W W O -A W A W 0)A■- W UW W A TNT W , G 0 0-s-,M-• ->-T W(O 400 N W(O A J -CJ N JN T W W W(0 0)O T TT o 0 O OOU)U)A 6.-‘6M6 '-‘6-,.-•M 666.-46 �W?mN T N NOT TOOT) c' I'- O O W W 0 W O O N N W -+W V 0 A -S T W 0 T N W A O A O T N N -4404W 0 U) U)0 U)U)U) 00000 00000 0100010 001000 00000 00000 CO (0(0(0(0(0 (0(0(0(0(0 (0(0(0(0(0 (0(0(0(0(0 (0(0(0(0(0 (0(0(0(0(0 (0(0(0(0(0 CC W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W Z 1,1, 0 W C C C W W W W W W W W W W W W W W W W W W W W W W W W W W W 44444 O O N N W W W W 4440 U UW W W J J J J W W W 0 0 0 O 0 0 0 0 (0 1/ N T -.o W N)A J 0 W O)O N U)W Ul -404,-40 W Ul W A J 0 N Ul W O W U)J 0 .^Y' .Z co CO S A O N W 4.666-4 0 0 0 0 0 0 0 0 0 O W W T U) W W Ul J N W O N am: O N W N O OUl OG)—JT W W N(O0 W W NJ A 00 N N A AN W A W U)N W A 7 CD J N N O W MA-4-4-4 -O A N A W44-)4 N A O U)U) 0)->-40-> (00)0-,0 (O (0 U)N N A.- c 03 1 0 T 0)0)0)0)0) 0)0)0)0)0) T T 0)T T 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) W W `4 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 T 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) 0)0)0)0)0) W W W W W m W W W W W W -J--4-4-4-4 J J J J J J N N J J 0)0)0)0)0) T T U)Ul U) 00044 m W N-,-)00 O 0 W W N T T M A A W N O O W T 0 A N 0 W W A N O W T 30 GO POA W W J TOUT W W WON 0--4(000 O JCN W W W 0 J W W J T A W mA W A -> W A J NW O N WO ..A0 � 0W O � AO -NA ( A W OCOO)O W OOOT� ...0 0 Z ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ ZZZZZ N N J J J J J J J J J J J -4-4-4-4-4 J J J J J J J J J J J J J J N J N J 0 00000 0 0 0 0 0 00000 0 0 0 0 0 00000 0 0 0 0 0 00000 N O 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 Z r u) Ft. W A A A A A A A A A A A A A A A A A A AAA A U U U U U 01 U U U UUUU0 W W A A A W N U1 T T T T J J J W W W W W W O O O O -•N N N N W W W ! C N W Co-+A N O W T O N U) CO N A Co O W T O N 6 Co-+A N O N 6 Co-•W CO W—W U) . a A T(71 T J J W W(O(O 00,0o4) 0 W W 0 0 -466w-, CO J A- V N3-4-)4-4 .r m A 44444 A A A A A 44444 A A A A A 44444 A A A A A 44444 T co WWWWW WWWWW WWWWW WWWWW WWWWW WWWWW WWWWW r m U) TU)U)U)U) U)cn U,(n cn U,cn U)U)U) U)U1(n U)U) mmmmm U)U)U)U1cn ommoo m O CO W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W O m —NN (O co O O---- --- NN N N N N W W W W W A 44000 0)T J J W W O O O O . C A -S0O0)AAJ O W W N- -N N -0 0N 0 000 CO A O O UW W N W W U) J-0 CO-.4->M COW OA ... A • o • to 3 U worn N A Co Co O O A N W (O W 0 O O O V A U) O Ui VI N A W 0 N 0)Co O A O) oo-r)- o o 0 D oa D D D 0 0 0_ (./)fn(n N_ 5 5 5 3 V N N ^c .i N 2 xv o m W 5. N m n o lc°Ww D co BIZ °- v+ + + �^ A -I mv) Z x y D cn * ov CO 0)(0 DD37 C/)CO(/)y 7 AAA Co D D D O O O o m ..a c-N'• 0 N N N Z W W N _s o C N N O mo `O m m A : C W A Trans#:6501 2\p- ba 1 �-34154 Schiumberger Drilling & Measurements DATA LOGGED al 2 5 2013 MWD/LWD Log Product Delivery 4/2013 M K BENDER A Customer: BP Exploration(Alaska)Inc. Dispatched To: Makana Bender Well No: S-41A Date Dispatched: 24-Oct-13 Job#: 10AKA0108 Dispatched By: Stephanie Pacillo Well/ Product Hardcopy Digital Copy E-Delivery Date Final Field Data 2inMD 1 1 5 in MD 1 1 2inTVD 1 1 5inTVD 1 1 Survey 1 1 LAS Data 1 CD 1 Please sign and email a copy to: Please sign and email/fax a copy to: Analisa Steger bp.com spacillo @slb.com Stephanie Pacillo Analisa Steger Fax:907-561-8317 Received By: 177 1:...)..066te.), V:..N N(00p^ PC-, 34 _OR:n:m F-a NF-O Mgig�^ mRNN^ A c2{p80.610 NNNO V Mpm E ��•' n rn r nt0000� ,-Nf�( -O OD2nBN� NN NOd mN. r Nlpm N IO N(0N mN Py y 800100 nm dfN�Om 04NO N 4Nc) N 0II) 000 tt00 $� G d dd dd dAAAA Amm2(0 n0igaVOnR mOfRRZ; NNNN(0 NNNN{ pNNNN yN NN m mm 0 t'J 00 f� 0 NN ,� 00000 00000 00000 00000 00000 00000 00008 0 0 0 0 0 O O 040 0 44 0Of 0 4)000 0 00 000 040 m4 OI04 00 000 00 000 44 0Of z Odd dfO�� fd��d dd d dddd d dd ddd ddd dd ddd0dpd ddd dd dlmdyd dd td�d 4 �mmmm00 00 mm 0000 ON V 00 tN'J tnON N �N (m0 �m00i�10 M"(010 In010fm0Of� MN N E q rim mmm QmQm Oo J 0..00 0NAm 2mNUm'J mRmum"R um]RNN2 RNNImON iAOmm,2 mmmmm Nm 00000 o°n 000°°n °nO°n°n°n°n °n°n°n°n°n 00000 000°n°n 0000 lopoo olopp fioo nn C fO"N°RR R'PRm 000(00(7 p° NNrImON RR 2T5.9 OONnyO ONOpNp f2 R8PAM t70 NZmmmmm mmmmm mmmmO 00000 �<mAN NNMM V vw,0NIO w0,Mm m. W mmmmm mmmmm 0000. 00.0. mmmmm .0000 .0000 m�im00 mm 00000 00000 0000. 00000 00000 ••• N m(0 (0(0(0 ,O(0(0 - 0 0 0 0 0 00000 00000 0000 0 00 0 0 0 00 C aRmONO 302 AN0.BO NaRSt PAP0R RR:=nn ONmN0 hn8R',2 L md R ( m m N m m O m N O O g N d m m 8,93m 0 7 m 0 O 0 p0 p N 0 0 0 p00m. NN 2 §§Omm (0 m mp Dm 0 m§ D n oo§ NONmm p r . 0§0 m m m .0N .. . m NN N N. .0.. 0 . .0N N m .... NN 0 .. . . Nf ... . O .. . ..... . J 808Od 4°83P^ 00712 (0 N0(0 V 0000 07. 0.0 ,m00 O<O NO NN O 6 0 0 0 0 O.,- O-O . 0fV.,- O 0 O 0 4 0 -,(007 O 0 O O N . O C ;Z000�N r OmfOF2 ANOmO022 EnF ONO NO2AM (0gV 222 Omi mONP mm MN�Nr NN w 00000 0Ndmd N07f0O 207 V 4 O"4,RTmi mb(0(0m N IDmTO TENON r0 N m d f 0 r m O^^m . N t 0 $f� N N N N m m N d d N N m m r r WM. C. CD JCSpp pp pp yy fp p ff.7� Z z•,OO.2NN mAIm00A Ir0fo70 W 7 RmmO QdQr n W PBRR N{c7R pRp�iry:, O(0ONfO 100000. NN E 00000 00-NO ONO$4 O4 ^�m N fm0 0096 0 O0 Am 644r.:.- 0744.0 r Y .- N N N22,T;W dd mmN mmrrm mm MS C 1 MC \ O N N 0 0 .7-7, —E m CAD F 8 E p F N n N §E,,,,8 0A N n OI N A°N V m m f7 2 .W O m O C N N m A(0 n N m N N 0 m7 f 4 0 V N N^f�A .72 y 00000 0040N 010 �m o mmmmN O(00V 000 p 00O NN )AN OO N $000 25.7-g. yyyq 1 -ozze t o U Cei- Nm E,Z .0= H N p�Q m 0 0 82 OO Q O QQ O N N p N m H O N 3 pp pp << f(yy OO f(pp pp G zOOm(0P O(0�MS t2O00i Si lPIpM 00(00 fAm mAlOOO Z.52,TOm Nm.'-.:m mdf'Cm7.0 or H v00000 _0000) N(0.010. ON Nn0 0000 I AN r �d$mm mo�mN MR 3 Z2, 4 N M'I M R R ,,,,MR r ^!!� C C C F O .t.' C G F gg 0 E 5 E A c c 5 y+ a C E rn q d w pq t y °-q ryy e f`�' f`�-' �``Q! S 2 . Q 0 p p d N O y d q u C p ¢ (0 0099"0040 0 0 N 0 0 0 0 m O d N O f F4 0 0 0 0 0) O(0( 4 N O 0 N .O 00 N- 's-lc,! Q J y'i N p` O` y N Q a V d u 2,p > :?V2 42,1, M V dddm . mfem mo$' � mf�412 rao O -;2211-22.212W8 O° a Y .- 33i2gg --- Z r r c o gq w 9 m- rn C g 9 qy E E» CI N p E f0 0 O O N»F 1-N F- O 2z01-..1 L N 9 Zppmmmm mS(0mm mOmmm 00")24- mNn�N 71.4.0 0003a mm rOmmN mop �/� >,•,0000 OaD ff+7� Op NmN mmmm f�mN RR V/ 1- OrNNm rOili" NOOOM rciSi f0N V N4 omfr0 V N Omawg; M2w22 NN N'f7N mrmmd mmNN� OO. tO tO mm N m m d m m r m m 0. m'^m m r m m 0 0 N N 0 0 0 r Q .. ,-.-.-NN NNNNN NNNNN NN.MM M. 7 w N V NN O O O O N mN A R A oo m0 N m 2 d(0r�.- n 'A R.A Ny 0. 0 R 2 1:pp N R.'?V n R 8 > mrrOm om. �mmA0 072.0 mrOnm RF,870 Orm N002 2 m0o7 ^0'mm mrmm 0 NN NN NNmN 1N7 M Nm d E LL N-N 0 7 0= :8'08 O N 2°'8822.7 . O 8 8 3 m O P W O 8 882°° N S 8 96 2 ) P N P O< 82228 .N E N O ( 0000) 66ppNN 9V00 ,c,,,; 044 O00 444,44J V V 0 mOO V O 00000 0O A. .6 INam E o am p N O Zi G z m 3 W oN a 3 2 u5'' 0,6 :6-2. O N O L v pp pp mto V to7N N N OOO p Np O OOiN -7.,9,q Ooi app OmNN rpp�OO7p pp pp q8.8. pp pp O.= O N O Y n m. 00000 O,-N.V W W W00 N O `Nm 000N NmmA (0(0 V« ypN44 0 os.,!m N ap A e 87 8 N N ' L A P0 Q pj Q Nr N§fp0�A _o W e d V O$N O m O W 0 0000fOi�O'NzZZ00 gF...p m00 m m V r�fOON NN NO-:2 R�O�PS.7 NO 2fm�PO NN N N m O �^@ M O mO m Nm PR 04 pmm Om pNN7 N p,N0 0,5: 6.i.0N 208.. i7 V.,00 rOco N V N N mR2c0 m N.A mm G 2 d E o W .C0C1> yy 82-J C tO gyp E y ° I'LL o D-1:› A E mmo°xx36 > d 4 .� c° �.° O o ;op cp�y E d g m ?y E" t r.°_ � Sv_a E w x51;,53m*e)e,FU' JJU' a U • C v m 4 N §8§22 0 N 0 N r g 0 d 02.225 N - n 2240,, 0)eN 1 02 N 0Nn N N0000 .28 V O 0 012A92,72 O 0N m 40 eN 97800 20m NU 8QQ NNN 1-7 822-- 0NPn A 000 700 Cp 000 J N 0 N N N N 0 N O N N N O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O 0 0 8 0 0 p N O O pm Opp N 80 80 80 8 8 0 2 0 2' ccc eeeee 40404 40040 40e40 eeeee 40444 00440 0e00e 44444 eeeee eeeee eeeee 22;rNOO ONN m 4101'00100 gQ�V) 'Odd'g 22822 O� NU) 000001040 and' _ 2DONVl 1^&"'"210 ONOH nmmm ry V)n m0pN0 n(mV� Qa�O+O O,�$ nON NOI N8-tm7N mO�mp nOpOl 20020 p) 0 O m�NyO gtV (V�0y t7 MAR;yO V V<yy J NN4 4N 28 (101108 U2i. 22822 1N NN0o00 0p 00(00100 00000 000[00 tN0 tND�O tNN UHT,0)O tAO 44 �� IDNIp tDO [004[0 t0[0404 2 2 2 24242 2 2 2 8 8 22.2. 2 4 2 4. 4 4 4 4 2 2 4 2 4 2 4 8 4 4 2 2 m m m 4 4 8 8, 2 m m m m 2 2 2 4 8 000 00000 00000 00000 00000 0 0 0 00 00000 0000 yy 0�tyy N00�0�tyy 00y 0 Nt� 00000 0000 00000 NN 0 N04 0^�040 0N 0( 00000 00000 ^�y 0�y 0 0NN 0 C c , 2422 m v 01000 4,7420 220 8 4%242 1024 841 %2 00000 2922a 00m8' 900 8% E8482 • 10 U 0 m 0g00 N C') 00 0 O06004 00000 0 -NNO 00400 .0000 00000 poO e- N0QQN4Kn00NNNNN N 0p N NNN NNNNN ' 44 m m 0g NNP0 g t0' 0 NNN 0NNN NO p NNNN [010 NO') C Nd O0i 0401 220)0004 0401222% 292A4 0900000 488.92 49247 99-22:= 040' 7 0 0 8 O m 0 0002 N 82282 N m N tC 4000E (7ONNO 002Nd Ot� OO ,^ 12 n Nn166 p(yN ) • mmd N 0 0n 000 0 O N N N cd 0 N 0 n0 WOW D 8 " 0O 0' 0Np O 0N N Nd ty N 26 0222 W OOOO 222 2% 2%2 22 %%222 22N42 22222 24404 0422042 22444 VV OOOO a NNN NNNNN 'NNNN NN NNNN NNNNN NNNNN NN NNN NNN NN NNNN N NNNN N N NNNN 00000 NNNNN 2 k 14,-p 28122 12884 06N 04 0 2T,-,2 N NN N N 2942P 9 O m V9 97E22 8:=482 V4 004 88,721 22422 O 00 O.-0-0 66666 0 0 0 0 0 F322,1 000242 w r�� 46664 4O) 0�0 0;[040 0 P48 2 2 .0 OR2S 8 2 r,:z g 2n n L , T R A Y, ,V;,-;20 N' 2N P m4 A 2pp70 2 OOe O N mp1 0^O 2210 28%2O O79N N 2.0 N 8 2 8002 p0 2y0 O0 0 00040m 2N P 22 2000' O Nl^ ^ ^ ^ NNNNN NNNNN NNNNN 01 NNm2 22444 d d 0 00 0 0 0 0 0 0 0 0 ;0 4 4 4 N Zr 2 m 0 N 4;"P22 Nn 22 r m 2 0 m m P 2 2 2 22222 2 22 22N 4N P R N n N N"n 282°2 N N N O O 8;R.24 272247, 7 0 0 0 R 2 2 22 • 97'22 0 °m p p y .° 00 m 8982 82.4"4 22 28 N 41800 00 QN N 00000 0020 04 244 08 22000 NN 0 0^010y U 2p,T4 N NNN N N NNN N N NNN N N N 2 m 2 4 4 4 4 4 4 m m m m m 2 4 4 g E2.pn 0) 4;8,7,8yp2 0201 tN�N t8:4222�t /2 U4l2 pN °78720 8'887�n to000)N OO N�rpt222')N X22 Nd O t22822 V On e8r V8 Nntt$89%% U ONN r0.9 NNNN NNNNN NNNNm 412%2 t" 82-)) C2V§^0i 200) 444 V d 44,44 44400 NNN2 V) 22...0 h 4 = po04lN� 0 m2P', ?4742q O T,2882 9O O N ON N 2 N�N p010 222 14 2 4 8 0 0 2O 80 4 2 996;2448 V NN OI Z 42'419 m'4 y 9 a 78 O0ON y2O m2O NN m yN N'< 001 n ^ 00 pO.4 NNN 2 N N N N N 80NN 4 2 2 4 2 2 p2 2 2 0 NQ d Q Q d d d 0 '00Q 0 0 7 00 0 0; 0 2 0 0 0 W E 74 p F.'1484 2.'3228 N 2m%0 22284' O n9 NO WV-94g 7G 4?,19 RN-424' "42E, pl0 (ttD 100 4422 n j m m g 0 p � NNN N N NNN N 22 22 p 22 2 d 4444 0 00 00 Q 4400 N N NN a', 4;a', 4;(20 12 2 22200 O F-Z r Nn�A O V ',1'82R2 42 A 2 0 S O N N N 0 0 2 2 2 2 0[0 2 2 2 , 2 8m 4 2.973V4 0200 0 0 0 7100 <7,45;48 O.1N cP mn2O2 p22 40 0 p 1 ON AA. m 2884 4 4 444 44444 44 v 44 444§1 1123 12000 2208 7,2220 1208 822 0 0000 (/j ,(7 010n. 7 8 2 1r 2 n 4222:':?04 0 2 N n 4 88%28 0%28 20 22 2 0 8 4412'4 0 927 4 O m n 7 20)t7 2:0 2 2 24247 N O�n N N 0 20 0 2 � v g04 00dp2 OO g Omm p0S NN 2 O V O N yy 02 2 2 2 m 2 2 0 d ;::"544 Q d d d d d d 0d 0 O0 N ' 002N 2 r 0 N0N 0 p0 0 0 0 8 80 0 0 N0 m0 0 ' n n n n n E°r24.8 OO N NO F NE 28224 8 000 N N O°N 8 ?00 N m O N N 28828 8828 N d O O N 2 2 2 O 0 N N N N 0 S O N OO .4248' 2080 040002 0 e 4 4 0 0 0 O O 0 O m N 44444 0 0 0 0 g 0Q 00d Ii n n N 444,4,4 0040 n 4i4440 0 4OO; t p4g 0 d 04,,0 0 2C882, 42282 8,4p N 2 S p N Rp p PP pp R .48288 88 P pp 0 P 2 S R. 008 2 N 0844 8 SS 84 28 24 R :82 P 2 - 00004 4404 Q d d d 0 4:i444 4444 d 04040 44444 NNNNN :i d 4 4 4 4 4 e 4 0 nd nd 44 g x82; 004227 2192,1 8884 4 N N Nt7tV m O O 4 Npp 022.2 08200 22242 00200 4000 00000 00000 24'849 O464 882 p pXR 2 4404 d d eOQ N 0 N N n 2R HR p02 o880 2N4 Qnn n20m2 82280§ 22612 2180 F 8 N E 8 E E 3 • 4 °:'2°°8 QQ Nm nn N VV q NN pp O g• yn m m N y o Q ° CO 0 N < 0m82N2N N o g ° v-m O N 71 mN e 8 mmmm ^885m p a mmmmm mmmm NmNm mmmmm m mmmm m • 01nm nmm m J mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmm mm mmmm mac cei c6 cO m mmm m m m m m m m a o m m m.65 m a o cO o6 c m m as;m m m m ca o6 m m co m a 0 06 m m c6 m m m mmm m m m a D co a D m m m d Q d Q Q Q Q Q Q Q Q d Q Q Q Q Q d Q d d lQ Q Q Q O Q Q Q Q Q O Q Q Q Q Q d d r Q d d Q d Q d d d y8 8 m y p Om7'N •• n co •2NN 0 m • O 2 NN i 88$ 8828 80 888 888 8 N888 88888 ,1 N N,%,% [73 r73 t3 [73,rN [73 8,%[73 C)CI CO CO CO C)mC)CJ t7 C)CI m mC) mC)m mm CO CO CO CO CO CO CO CO m4' C)CO CO CI CO CO VI CO VI CO NC)C)C)C) C)C)C)C)C) c7 mm NN CO CO C)m4' CO el CO CO 00000 On 1Onpp On On On 000010� 00000 O O O O O 00000 O O O O O 00000 O O o O On p000100 000010(g 00000 0000 C 4'r N m 0001 �(QOD r o6 cO N am maO�8((718 <�OOl Opmi�cy7 a mtmOO88 8 a8(Or y4' 120'8871. ;!:=28:`-'1?) :2F,87-g3(, 828(a88 88-488 (mi{mp<mO 2'4'OOO �O m4'N N Pico P)4'0 1)282 t8O n N n m m G82222OQi 012000 OO�tm7N N N N N 888 8' 2 V.74.4.8 888830 2880'' ■�mm 2 ▪�m m.-c7r N W V,CO CO CO c7 co c7 c7 c7 co co m c7 c7 mm co co c7 co c7 co m Cl co c7QOQ QQQQQ QQQQQ Q QQQQ QQQQ• ddd dQ Qdddd dd• NgggN ggggg 1g1gp1g1mgg gNNgN Ngggg N1g1NUmN Nmm1mN mmmmm NggNg NgNNg NNNNN gNNgg gNNg C NN1pp8aP8 c7�p8ppp o0 [87801010 Orm2r Ori Ori 1ym00� B�maNO� yQ NNNa a8 OIN �{tNpp{8 p2 2 ONi��)2 pad 8102 a8 1.0 V hOOi y�Nmm .�• ...ON[N701� 8<62,6 64' 21∎0'00)3 2)8082 N N Q to� 08)38$ 686882 88683 00000 O-4'(870 NN N .7;O QQyy ppyy yy NNNC)0 644'48�pp QO a.}}O 88888 N N N N m t88888 O m B mm N n"n nn ym mp yp p NN NN11IO��0 N N NNN N N1O N Z 88a01 a0 88188 8IAAm 110083 $8888 18188 88128 88828 mmmmm 28828 8828 NNNNN CO NN(N�NN pNp p4'N(h�CO 880828 NN2 VNN Imo NNlmoN NNNNN imO CO�Np tmO 180 NNMim[l p4' cN�NNNN NNNN Um9 NNh mo m I4 032 82 2 V 2� 0�< 822.,'82 m2<Nr P. BOO fz“2 078 CmOm On N D 0[0718() O2i 2288 2Omimrr r V 2IL-4 2 g 0 v m N n m c7 4'0 p OOCV�-cV �-�O�c7 COOCCJO 0 m mmlh mlh tGmN17 cV cV On: 00 Ou"im Ot7 V NmOm Oi err _ e PNCPcpi 8088(003 2'82 2 C 0 N N 8 88,88 2 0 F.'N N S 8 8 m r D'8�m n 4 b 3 2' O a C a pn 8 O r m P. 2 N ND O . o 0 2O44 20 - 73 NNp0m �c 2 Q J d N Q Q Q Q 0 44'Q 2 d nd n d d 4 Q Q 0 0N 0 N 4'N N N FA N 2 Q 33N 24'Y) N 2288 84'mtN 288 2 Z R.-4 3 8 B tNN m m 0 8 2 2 0 r 8?-'m m F74''7 2 g 8 a4'a 0 0 8 n 2 2 2 P c. P I t'--183 708 0 2 '8 2 7-O oi co. ° Q• t mmm y 1 cO m n m 2y O2 v e NN N 4 Nm ( y mm∎m�Cl mC00 Q QQQN 4 OmQ fQ O4 4 4 V OOOQ 4'4'4 O V O<<O OO< <V F ON12 2gm2 N8N p< aeo 00c2tyJ� �(N]2 Q2 yQ a4' 222'4 m18022p 22' Om y2((800'8 8'880003 {O4 cgm7<Q O p0pN2 O{22py722 c27O1(ca2yp7D ma0 4'82'8 2 '2 U• 88882 282(08 88)20`104' 1"d 1010)010 1Nn m1O8`m° [[3[8[[31-6.43 458882 1802180,°n N N n n CO 1�n A n n N NN N n do h m pp Q pp 2 • eCO V r m QOmm� mQ80 C1 No, Ndco 4'N �Om 2 CO co 02��2 2m� n nm CO CO W0'88 CO m∎m5N� NNoN VI CO• mBmNCQp mmQpr pO d�c��Ny cm7 NyN CO m4'pm .-Cl 1000 cp cp p m 74 Vmm� Oi 1p aa pp cp• 8228-88 22288 co e4'N 12 811 caa 88888 88 E88 810(0(0100 108180∎0 n K l� n n n n 4' n n V V 010.N n n n n 3 /80180188 21804' C) 8 4'1088 r n r ∎ m m m0 �yy 92 U 2nON m ',18P:188 O Or 80 4'P 2N V o<NN2 8'828g 858'88 2 y E237 828g3 242222 4P8'48 �Nn07 N222,12 NN , NNN O gNoicori m cy0p4 V B Nj N n d N 8888 yyBNm a0m8Mto mmmm 000)00 0 )''2 03p00 080 88000 m t7 R E8y a11a 2 D3 N�N Q d B OO�m �m m 2 N 08180228 Vm 82 c8 ya 8.87 m28C87 8�V 8081 m c8O N N 4'8 N O R. 1008020 88 83227 8228 Nr2 W 2 N r°m2 2.9§2 rpN 48228 yc2R-8N< 10aN008cD10 1N1pp81Drfc Q`�n�r00 a8?-3ap2CVmp`a8 gm8m8 8888`8'8 88822 mmm r r nnn nn n rP �N nr8 8aON22 aD eD OJ2mN mmmmm 00mco 8m mmmmm ma0 m ao aO mmmmm mmmmm mmmmm mmmm 8^r„r 8N r 8 2 N OO 0 m(Lp O 8 ^8N0 8 2 7 P 8822 2'm 8 a 8 8L. 08n n N n 0 m8r 82 '8 8mm2 • mO<,CI CI p 088 l7N Q0 OmNe 28 O 0nJ emN 8g5 m• W N CFI P N P. n ∎r∎ m mmmm m8 8 8m m 8 Im mp cog 62 6.6 92 co mnmmnm n �mi02 2 2 8 m Orn mm m m J C"O^0 2 8 8 8 8 488°8 2 8 8 2° 28228 08 8 8 R' m 2 Q mQ a 0 m 82.°.F.2 y y OQQJ l8yO°pp 4'8 2°222 '824,`,92 O O r 100 O m'p O p O Ft• NN4'10N d 881'08 100 NN 008 NNN N 100 4'NNNN 00 N'1mO i0 N V811O NN NN L(N)4'h NNN�10N �2N8N 8218' mmmmm T081OO • C CN m' N r P.88 88p 88p 8 p 880 P-8-288 o 888pp p 8810{08 10 888 8 88888 88888 888OO P 8 822 8P888 8:7422 V OOOQ OO V O' '0088 NNNN2 2 '04'82 8818N8N 8282' '88808828 8N(88 c8p r (M�180p 0100 88880 418,8P3 r 20 n aeo 88888 804Omi P) 8008 O8 8 3?-3%1 08147 88888 8888R,{ 888 P ?G.! 1'O OtO§, 00001 VpO° y4'88 N ap∎p tm� O� 00--- N N N 1N'�2 2 Q OO u� 8810(0180 ^^^-00 88882 00000 88NN N c722 gi mmmm 0 m m m o 0 O O O O O O O O O O N N N N N N N N N N N N N N gx� > qO y 9 6 c 3 m O m $2 U H V-CO • ?y 6: 220 8g"-"°,2 4 Om 22224�6 n N m^3 t(m 2 n m 4 Q A 2§232 OI O r y N O O Qnn 0 'O 8,p 1N Nt7 y m, pmO N N N N t V T n N N O p Q{p NONNd m^ o m 38382 22222 2%233 333822 oeoemnn nnnnn nnnn n12.nnn 1n'ndnd2g dndn000 00nnn 0n 6 6 6 6 6 6 8 2 8 8 2 6 6 6 8 6 8 8 8 8 2 6 6 6 6 6 6 6 6 6 6 6 6 6 6 8 6 8 2 6 8 2 2 8 8 8 8 06 6 6 6 8 2 8 8 6 2 8 2 8 2 6 06 2 ad ai ad adm 66000 66666 admtriadad 000600 606666 dad V 66666 66666 d e d d ad 606666 66666 dd dd m dd d Qs aQ d ddddQ QQded dd, , dd dd d Q gee d dddd d v - ppp m20 V o P:4222 8,9,424 , y ,- O • co � O Nm coggron Nc9 rommm 8,,n mNOp0QN6NmN 00200N 2%222 mNdOm r22 222 2 06 00 0 2 22222 222n 2 %%%%% %%2 2 2 22222 26626 6622. 222 N 2222 2222 22222 22333 33 m mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mm W N 0 d 1 00000 0000 00000 00000 00000 00 000 00000 00000 00000 00000 00000 00000 00 000 00 C R4 6m2nA 22222 222;:= 242E2 0;2&2 42,32P 24n 0 1E44'2 2 nNr W d NE3P242P,7 NNOmd 22 v m Om6Q° 6c66°66 22238 8NNON r422 222'4 r22:42 %2 OO a p 00.-M0 pp2 Q m moo N 33 N N 22220 22233 33 222 2222 000 ,2 22222 22866 63,33 2 22222 22838 32 N NNNNN NNNNN NNNNN NNNNN NNNNN NNNNN NNNNN NNNNN NNNNN NNNNN NNNNN NNNNN NN rag 2728 y p11,2 28226 3332(m<t� OppNi N 042: 2.32.28,2 23 x2%3322 23 .r 2:2 ON(N�p OOI N 1nDm 102pi 0� N p2�of r 82:424 C52:232 m�a 04 32' ▪g••N 7 O O .2.2 2 f.,4 4 0,7 20223 N NNN N .0 0 4 0 ;,222 t]2 17 N N N NNN N amD 120 0 2 0 88 z m 22222 2222222 18188 83188 83331 III85 11183 13333 83883 88118 88818 38333 38 N NNNN 60 D ed h160NN60 NN3NNN 228,21602 NNNNN NNNNN NNNNN NNNNm 160 3 3 2 610 0NN0N 0NNNN 9g74 43:220 pp �� 032 OO ad Ci 8, NNNNN NN 6I'ONo OiNml-� O(V(V�[io O(V 1UNN 6616 N1Gi <010 W ,A N 202 2 4 4 222 4 22222 8,4 FN P 4230 2 2.723 T:23 00 4 m o n m n n 22 2 8 2222 d O N m 2224 O N' ' O O 0 34d 32 8, 0302 23822 n O ^n §8,R2 033 �m 03§g0 $ 0222,4 3,24PA 33 03332 N NNN m 22312 32222 22m2 n 2220 2 0 20 n nn n n 02°°° n nn14n 2E* 2:2 2d:2 2 3e 0Q 0 3d 117 2d 8d od 42d 2d 1d NOd 2d 0d 2 224;2 D 2 N g 2 48282 2 P2P4''22 m n N NnO :22%2g Nn rapI�p Et�I Nn 2 P:2432 g2 • 47f vi. o6 ( p p p ; 02 2ON m8, yad m2p 2 n30202 262 2v.,4 4.42 2 NN NN N N N; ; ' V 0 0 0 0 0 8.. 6 36 p .2823 e Q d d d d d d d d ,,,MM MMMMM O22 m m m m m m m m m m m m m m m m m :€O N 0 12884, n 2 3 2 20 82842 2 m 422 N nJ 0'2 22232' 2,2 m 13 32 P 1:3 N .22 0 0 m 24,n0'4 20 6666 1 2nP 60 y 3. 22%2222V28,°01 8,2 U 2r b 2r P icTq m n , PPP n n n r P 14 pp4 00303 222 m m 2 m 22 a°1 22211 2 mm{{pp ppmm11''�� pp 3222.'2 pp vtnp 23222 N<OO m.t 4601274 x0')0 d 28,d 2 22222 O4 n r 4 282;3 12001006) <2 E 2028 242x 4 ,73:7 u2 P n 00030 anion n 0$06 063 c73 M mmmmm 88332 22 ,21 mmmmm 22'2x3 o� §0,8§ 3 mmmmm mm 60860 e6 m 6e mm 068 m 0,2 p y V y (� p p p OW W ,8, NNm�127 �V 16u,<oOmtoV e°�mtVN7 <OD 11y0 na��Dm °6 p8,°m<opp ppO�1 O�in 1°n N� °aNdv�`�<an0p <t0'n o 31ui)' 0�1m7 a.2p-n 48 x4101°0 p3p f2l<On°m QQ�m mmn °60J > N 206«V 00M0g 1010220 2x03 Oi01 ONNNN NNNNN NNNNN NNNNN NNNNN NNNNN NNNNfO') t'1 t0'I 17063 g X<^7 24228 2c.2 11;3 gl 0160222 .3-4672[70 338,3x0 .NNNc4 �42p NN .2-021X001 V x0222 o2 nnPNm 0210 2 N NN 4 V 44 d 467427 g tm7t7107107 407 c0'1407407<07 4747 Ngg 202 a N <V<2< N 3333 310010060 24 04 V 2120 N2f0 (6120 m mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mmmmm mm yamaOpp mOOaS3 anpN Opep 28,p22 306420620 amp<:22OEN 0R212x20 pp 2d p20620 322 ppEpp 063<p2D�2 pa8pp p20 om2�062 324 3241pp%0pp 1a3p2 p2p -2mON14 paO2<OO2<OOr a3pmnnp32 060�0 ' 2 2262 2222 x202222 403 x033 22222 22222 2 x0266 a0 a0 aOm OD 2 x022 x0 ..2420 x20 aD x20.03 0 222x20 of x060 3C0 02140%22 1060<n0 722402 t.)224! 0201208 22422 N NO40 N n N N h m .722827 4448P N N N 200 <08n,% 22 f 8 82--: O O^ '6 N 4 2 44444 0 m 0 A 0 04044 1N 4 0 4 4 IN 1:N 4 N 44444 N O 6^^ 06 6 ad" 44484 4 O m M 2 m. E ^N NN626 2 2^29 93N O, 3021 " 0212294 4002 1000040 m88e 0091200 NNN20 197N1m7O� 2810000 .2-O 140 N d M.9 N 99.099 p 1p 0,s pp 22 p N <<pp o4p4,p..- m 2 22280 22122 22232 2°222 242024%x20 %%%%2 22x02% 22001001001 00122ONE 2 0910912001% %2222 2 x2022x0 22 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 2 EE 28222 2:22,92 N r N N N 2:2 2,2 4.12g2 2 .12 g 22O4N 0 42428 m g d n 0 422,'62 2 8 3 2 g 24224 4224 O r 4 2 2 5M%42 %4 2 44842 m n N O p 28 ,3 0 O r dNd N 2 2 2 2r P P 2 22 6 2238 O O,-10 N NNN 2 2 4 y p 2 0%2 2 2 0 n P n 2 2m2 22 O O O O d NNN N 82 N NNN N N NNN N N N N m m m m m m m m m m m m m m m m m m m m m m m m m m d d d d d d yQ� tb y Q y V:..n 0 m "SS 822 22(20('0 222T/1= N l7 Nmm 800472 2,n h mm 2082 �0��OJ�O ONN 0,—�c1p1p MMNBm ^gyp N ?.C O2i22 N4 m^O eCppp CeDm1pN�p 7-7.-'J N N O8 N mm2 m 2^82,8 2, n 0000 ogsoo 0000 8222' ^1p �p p n n n r r r r n ,NP-NN n N n n n 0 0 0 0 8 0 2 2 2 2 2 0 01 T 01 J 2 2 2 m mmm m m 2 m 2 m 2 2 2^' m m m m 2 m 2 2 m 2 ' 6606 466adxi6 66666 6xixixin6 ed20xi6 66666 66666 Z Q Q Q a Q Q Q Q Q Q Q Q Q Q-1-1 Q Q Q Q QQ Q Q Q Q Q-1 -1-1-1 Q Q 3 y C ^N 244 282p 8 2 '22 428 2 ''2'0Nn A 22 N 2 m N 4 N 2r N 8004 2 0 00 g 2,73 422.4'3= g Q 0 8"728 N 2 m _n N 3 222 222 2 2 222 2222 22822 m m m co.... m mmm m m mmm m m mmm m ..comm m mmm m 000 00000 00000 00000 000000000 00000 0 0 0 0 0 00000 '^022 22222 22222 2,708 7 04 2 c c72 n N r V O (020 2 7 V2 y y2220 y 82.c7, 2 u H 3 2.2 222.2 02 20 8888[13 �8,'688 8 cr,i.82, ^m mgg 222 22222 22222 22222 22222 2222pp2 222y22 C NN NQ MN QQNpm NCOM, NNpppp0��80 mNfpN'J2100 r -t`4')ON OONtn'J tQnp • f,-282 O Q 2 2 2 N P P r 188 g 8 m (7,4 N N N N M N 041°2 1.2.7 � Z 1 8 2 22222 2 2 2 2 2 22222 2 2 2 2 2 22222 2 2 2 2 2 i VNN N(N N1(21hNN NNNNN1.p N�N1{... .00p.0 N120NpNN ..... j R'0182 22282 V48N2 022GN 80272 22.204 22021 028 06606 Mm226 I,:CV Min V Oi6N0 O4666 CV �00 W 42 4 Q 22.42A 2.42 m 40228 2488? 4 020 82 828 7172:=A4 27,42R 7,42 R 6 46 $N 0 4 0��m N N N 2, .- 0 . . m m m N m m m nn n 0 22 m n nnn r 0 0 n n n nm m n nnm T a as N v o v v N 1O CON Q N N r Q 2,2@ 2 8 N CO 5-2 N N Q O r 030‘0,-. 2 5-NCO n d :2.-2'4-(.4-i O O Z x,2 m.- rQm5-O NO o.CO 102 p22 pr 01101030 20-1(•1 1 v-4 2822{21.- O m Q XN, N�8 c2NT100 27N�N m2CO18� OOr�2 00"c"Pc rf�100102 • a�(/1 Ul cam 1O 2,N Q O-1 2,2 m m N N O m 2 mmm mcyimmm mmmmm t^+1 Cf c1 7,‘93 22222 NNNNN NNNNN 0 Q =22 • CO 08 W m .N V t`) 2p 82 O N2 NNN 22402 V Np S N<n�V N W W N M 6 8 4x2 Y) 0N2 2Nte G 28220 c2A4N2 0022 80028 Pc U gAIAI AAAA IAAi° AAIAI 81222 22222 h 2,'O Q n 2 042 :22222 88 N 22 204 iO28 2 8 2 8-1 nN p22 O o S-1241 QO'm0 mNmN 02022 Q 028-1 2820.- 010012 a0 Vc a O-M 4 6V 6 6 0 N.O 6(ri I:6 .-N M v)2 6 6 d64 6 h 6 6 6 MN O 8888 2WC20221 28888 6iiii `m 0000$ 88888 8888'8 Yog 3 2,2^ 22222 m p22 3 • • i y S • 0-4..,1 222-1 2 0204 �p N W N Q 10,-2 04 05-2,'Q O 2,^N m T 12,22i w 2 m N n N Q w 2 N Q Q O 05-.7.4. n Q N 2 m N 2 m m r 8 m O Q 2•2 m <-1 m m 2 M r 6<6 2 V n m 2 N e 2 2 2 8 4,97Z14 ~p N N Q(} N M M 2 m N N m m.N 2 180 0 8 8 N W W W rn mmm O 000 00+❑ N m m m m-1-1 Q ...NW mmm mmmmm mm m m m m m t'81mm m mmm m mmm m-1 -1-1Q-1Q F 33 3 N N N N m V m O 0 2^NrN 80mN V 28g21 5:=2 m 204 Nr� "'MmO� 2:2222 i 7�,O Nh ~ V memrnm 7.202 28 m 8`p� 44222 22222 "m4m 2 2 2°x3222 22222 22222 2.222 22222 22222 a C ill O y pp pp E 00 2E82A 2422a 2.2Nh0 0:.8-2(41 CmO1001mOn� .8-484° 02:=2Ac80 1O u .mm !en!m m •� n n 120 u2i 081 N 27,822 2 4 1`1 8 2 22223 7-',7t2843 U Z N A C O O p r g 4444' o E.17; NN2 nn rrxi0o 00000 0000 g wmw� F7 Z E'a _ u m m o 9 m x0222 22208 88800 04000 N Q m D . 0 0 8~ 10 -,. .E° ;2,',.1:: ,?7, T N J N 6 W twi N v L z L « e, o e, o Q N N 2 0 2 2 0 2 8n n 2 0 2 2 2 8 2 2 0 N 2 n m m :'-'4'822 : m lwl 04 2 W Y C.1mQ N88N 228I�Q OQ2NN NeQ 0202-1 1x Q tJ C 228 aexm8rnm '2mSim g2 .12 m*gs;ig mm222 mm222 m J2 W Y U N J ... :z361 C C 2 CO u_w^ 0 o NN R 2 E`-'4 24 8 r,-,2:202 Nr,-,2:202 0N 2,.- r 882236 20 0 2 m 2m0O2 82;28 2N 0 8'44 8 oh ,mm § :=. ,,, C m O 2 n N ,i 8Ob 01 8 2C ^<^N O2, 7, r ,,! m . y44 V y y N y(QQ-1Q 82 Q Qm-1 O0C 00 2 0222 2227 3 0 .m N U= 02004 N % Ca m7mm C d N N @ Q...8 O m 2 N N g Aw 0x0622 N i 2 E �Sg 2O1N e w`a` 8 d Fa l N U N 4) li w e Data Analyzer Query Results Query Name: LOT/FIT Fixed Field Data by Welibore Comm. B Date LOT/FIT MW(ppg) TVD(ft) TMD(ft) Press(p si) BHP(psi) EMW(ppg) (psi) S-41 A :9/22/2010 LOT 8.40':. 8,897.32: 11,920.00: 3,754.0: 7,636.5: 16.52 S-41A 9/27/2010 FIT 8.604 8,932.004 12,003.004 728.04 4,718.44 10.17 S-41A :9/27/2010 4:37:00 PM FIT 8.601 8,932.004 12,009.004 728.0.4 4,718.44 10.17 S-41AL1 110/11/20104:30:00AM FIT 8.80: 8,901.244 11,919.004 400.01 4,469.14 9.67 12/9/2010 17:32 Page 1 of 1 S-41A&AL 1 Sag Laterals PTT'To. 210-101 &210-102 Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L(DOA) Sent: Thursday, September 30, 2010 10:26 AM To: 'Johnson, David A(Swift)' Subject: RE: S-41A&AL1 Sag Laterals PTD No. 210-101 &210-102 Dave, The liner lap mentioned below is technically placed within the "Prudhoe Oil Pool" . There is no requirement to extend the liner lap in this case as it is not a barrier to flow to other oil pools or to protect freshwater sources. Thanks for bringing this up... I didn't see this in the PTD application. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Johnson, David A(Swift) [mailto:David.A.Johnson @bp.com] Sent: Tuesday, September 28, 2010 9:00 AM To: Schwartz, Guy L(DOA) Cc: Egbejimba, Uchenna J Subject: S-41A&AU Sag Laterals PTD No. 210-101 &210-102 Guy, Confirming our conversation, The S-41A lower lateral kicks off in the Shublik shale and drills up into the Sag formation. It will be completed with a 4-1/2" cemented liner. Do too the short spacing between the two proposed Sag laterals, the liner lap will only be 40' to 45'. There will be a liner top packer on top. The second upper Sag lateral kicks off in the Sag will be completed with a 4-1/2" slotted liner which will be dropped off in the open hole. The USIT log showed good cement bonding and good pipe condition. Dave David Johnson BP Rotary Drilling Office: 907-564-4171 Cell: 907-632-5806 Fax: 907-564-4046 9/30/2010 Id') usage S-41 n Page 1 of 1 Regg, James B (DOA) P/3 ( 5-41 A P i i• 2-t01010 efi -41A-L I Zi010 Zu From: AK, D&C Base Operations Superintendent[AKDCBaseOperationsSuperintendent @bp.com] Sent: Sunday, September 19, 2010 1:21 PM To: DOA AOGCC Prudhoe Bay; Engel, Harry R; Kilfoyle, Jeffery A; Miller, Mike E; Shepard, Samantha F; Rossberg, R Steven; Cismoski, Doug A; Egbejimba, Uchenna J; Johnson, David A (Swift); Tirpack, Robert B; Platt, Raymond M.; Schultz, Mikel; Decker, Bill R (ORBIS) Subject: BOP usage S-41 Attachments: S-41 #2.doc Guys, Here is the BOP usage form that was non related to any rig activity. «S-41 #2.doc» Left message to the AOGCC on the slope around 10 AM and received call back from Bob Noble at 10:40. Bill, There will be no need to test the annular unless something comes up where you have to circulate something out. Alan Madsen GPB Rotary Drilling Superintendent 907-306-4997 cell 907-659-4618 North Slope office 907-564-5780 Anchorage office Ti-u .44(1 4 xa ytawa 4a/Gc 441141 y gau 14.1 0414..14. 10/5/2010 r 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: Alan Madsen Wellsite Leader Name: Bill Decker Contact Number: 907-659-4618 Contact Number: 659-4835 Traction Number: 3621143 '5 41A- /5-414L-I Well Location/Name & Rig Name: ,S=41 Nabors Rig 7-ES Permit To Drill (PTD) Number: 210-101 and 210-102 Date and Time of Incident: Original Scope of Work: TIH to perform cement squeeze operations. Operational Description Leading up to Well Control Event: BOPE Used and Reason: An evacuation of the entire pad was announced when there was a gas release from skid 57. This skid was notpart of the drilling operations on Nabors 7-ES but was on the same pad. The rig crew was tripping DP in the hole with a cement retainer at the time and immediately set the pipe in the slips and screwed in a TIW valve and closed it. The annular preventer was closed to a closed HCR choke and kill valve. All power supplying generators were shut off and personnel evacuated to the safe musher area. Head count was performed and all on the crew roster and third parties were accounted for. The pad operator alerted the WSL that he would need to evacuate the location and meet at CC2-A. This was done and another head count conducted. All accounted for. All work on S-Pad was suspended for the remainder of the day or until further notice. Is a BOPE Test Required after use ( Yes/ No): If no, why? No. This preventer was not closed to circulate out any influx from the wellbore, nor are any anticipated. 24 hour notice required to NS AOGCC Inspectors prior to testing BOPE components. Plan Forward: Wait until the pad has been deemed acceptable for the operation to continue and go back to work following a start up procedure. Additional Comments: Email to AOGCC North Slope Inspectors within 24 hours of the incident: doa.aogcc.prudhoe.bayna alaska.gov Email CC List BP WSL Harry Engel BOPE Usage Report for AOGCC Rev 1 September 1, 2010 . rd'• Wells Team Leader Jeff Kilfoyle Engineering Team Leader Operations Drilling Engineer-Well File Wells Operations Manager Drilling & Completions Engineer Manager Wells Intervention Manager BOPE Usage Report for AOGCC Rev 1 September 1, 2010 SEAN PARNELL,GOVERNOR scirojE 0 ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John Egbejimba Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU S-41A BP Exploration (Alaska), Inc. Permit No: 210-101 Surface Location: 4152' FSL, 4504' FEL, SEC. 35, T12N, R12E, UM Bottomhole Location: 1462' FSL, 3412' FWL, SEC. 25, T12N, R12E, 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, Cathy '. Foerster Commissioner DATED this ay of August, 2010. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) RECEIVED .4 STATE OF ALASKA ` ALASK,. _IL AND GAS CONSERVATION COMMIS.,.JN JUL 2 8 2010 PERMIT TO DRILL Alaska MI 5 Gas Coo.Commission 20 AAC 25.005 ��,,��,,a.},� 1 a.Type of work: 1 b.Proposed Well Class: ®Development Oil ❑Service-Winj ❑Single Zone 1 c. Specify'7' A 1E0posed for: ❑ Drill ®Redrill ❑ Stratigraphic Test ❑Development Gas ❑Service-Supply ❑Multiple Zone ❑ Coalbed Gas ❑Gas Hydrates ❑ Re-Entry ❑ Exploratory ❑Service-WAG ❑Service-Disp ❑Shale Gas 2. Operator Name: 5.Bond: ® Blanket ❑Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU S-41A 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 15392' ND 8976' Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: ADL 028257 4152'FSL,4504'FEL, SEC.35,T12N, R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 3416'FSL, 1721'FWL, SEC.25,T12N, R12E, UM September 10,2010 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1462'FSL, 3412'FWL, SEC.25,T12N, R12E, UM 2560 6,975' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: —65.5' feet 15.Distance to Nearest Well Open Surface: x- 618930 y-5980355 Zone- ASP4 GL Elevation above MSL: 37' feet to Same Pool: 604' 16.Deviated Wells: Kickoff Depth: 12022 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 96 degrees Downhole: 3289 Surface: 2403 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD ND MD ND (including stage data) 6" 4-1/2" 12.6# 13Cr VamTop 3398' 11994' 8932' _ 15392' 8976' 392 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): __ 13.867' 9058' 11897' 13867' 9058' None Casing Length Size Cement Volume MD TV 9 9 _ D Conductor/Structural 80' 20" 260 sx Arcticset(Aoorox.) 80' 80' Surface 3298' 9-5/8" _1067 sx CS III.272 sx'G'. 30 sx CS II 3332' 3045' Intermediate 12376' 7" 360 sx Class'G'.212 sx Class'G' 12409' 9032' Production Liner 1638' 4-1/2" Uncemented Slotted Liner , 12229'- 13867' 9006'-9058' S-41 L1 Liner 2114' 4-1/2" ,Uncemented Slotted Liner 11921'- 14035' 8901'-8944' Perforation Depth MD(ft): S-41 Slotted Section: 12235'- 12865' Perforation Depth ND(ft): S-41: 9007'-9052' S-41 L1 Slotted Section: 11948'-14005' S-41 L1: 8911'-8946' 20.Attachments: ❑ Property Plat ❑BOP Sketch 0 Drilling Program ❑Time vs Depth Plot ❑Shallow Hazard Analysis ❑Diverter Sketch ❑Seabed Report 0 Drilling Fluid Program 0 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Contact Mel Rixse,564-5620 Printed Name John Egbejimba Title Engineering Team Leader � ° J Prepared By Name/Number: —J Signature . ' 1( - - Phone 564-5859 Date 7/x7/ /0 Terrie Hubble,564-4628 Commission Use Only f Permit To Drill API Number: Pe` 4110 Ap val Date: I See cover letter for Number: P/Q/Q/ 50-029-22645-01-00 other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales: L10 Other: -!F 500 /�3 � �.JoP rdS"'f Samples Req'd: Dyes IdNo Mud Log Req'd: ❑Yes Ballo 1-60.4:.) HZS Measures: Yes ❑No Directional Survey Req'd: Yes ❑No 4E 2.560 /o st. n n eS - De eJ list at L PR 3 Act- 'We_ 20 AAc z s.z:5 C is ) (Date 8-5- `o t, ��_„. ‘/ APPROVED BY THE COMMISSION COMMISSIONER. Form 10-401 Revised 07/2009 This permit is valid for 24 m Ohr.(r °Aral(20 AAC 25.005(g)) Submit In Duplicate /40- 9440 To: Tom Maunder, Petroleum Engineer Alaska Oil & Gas Conservation Commission bp From: Mel Rixse, ODE Date: July 21, 2010 Re: S-41A & S-41AL1 Permit to Drill Request A permit to drill two laterals from existing well S-41 is requested. The existing two laterals will abandoned, then two new 6" production holes will be drilled from a KOP in the 7" casing at -12,022' MD and -11,937' MD respectively. The S-41A lateral will be drilled to a final well TD at -15,392' MD where a 4-�/2", 12.6#, 13-Cr liner will be run to TD and cemented. The S-41AL1 lateral will be drilled to a final well TD at -15,212' MD where a 4-1/2", 12.6#, L-80 slotted liner will be run to TD. The planned completion for this well will include a 4-'/2", 12.6#, 13 chrome tubing string with gas lift mandrels and a permanent production packer. This well is currently scheduled for Rig Nabors 7ES, beginning 10-September- 2010. Please refer to the additional data within this request for specific well details. Please call if additional information is required. Mel Rixse - DE Office - 564-5620 Cell - 223-3605 S-41A&S-41AL1 Sidetrack Page 1 Well Name: S-41A & S-41 AL1 Drill and Complete Plan Summary Type of Well (service/ producer/ injector): ( Sag River Producer Surface Location: X - 618,930.12 /Y = 5,980,354.93 4,152' FSL, 4,504' FEL , T12N, R12E, Sec. 35 Target Locations: 625,075 5,985,000 -8863 TVDSS A Leg Ivishak: 625,860 5,984,500 -8900 TVDSS 626,260 5,984,265 -8907 TVDSS 626,518 5,984,025 -8910 TVDSS 626,670 5,983,660 -8890 TVDSS 626,800 5,983,075 -8910 TVDSS Target Locations: 625,020 5,984,315 -8867 TVDSS AL1 Leg Ivishak: 625,165 5,983,050 -8847 TVDSS 625,325 5,982,615 -8837 TVDSS 625,490 5,982,230 -8849 TVDSS A Leg Bottom Hole X = 626,800 / Y = 5,983,075 Z = -8,910' TVDss Location: 1461' FSL, 1867' FEL, T12N, R12E, Sec. 25 AL1 Leg Bottom Hole X = 625490 /Y = 5,982,230 Z = -8,849' TVDss Location: 639' FSL, 3192' FEL, T12N, R12E, Sec. 25 AFE 1X3-00W9R-C:PREPOST Rig: ( Nabors 7ES Estimated Start Date: 09/10/2010 Operating days to complete: 130.8 MD 15,392'/ TVD 8910'/ RT/GL: 29.5'/36' RTE: 65.5' (A/AL 15,212' ss: 8849' 1): Well Design: I Dual lateral - Horizontal Objective: I Sag River S-41A&S-41AL1 Sidetrack Page 2 Directional: Ver. Schlumberger P6 for S- 41 A/ P4 for S-41 AL1 KOP: 12,022' MD for A 11,923 for AL I Maximum Hole Angle: 97.5°/96.6° production section for S-41A and S-41AL1 respectively Close Approach Wells: There are no close approaches to this well other than the existing legs of parent S-41. Nearest well within Pool S-41 A: 604'to R-20A BHL. S-41 AL1: 469'to R-20A BHL. Distance to Nearest Property S-41 A: 6975'. S-41 AL1: 7023' Line: Current Well Information Well Name: S-41A&S-41 AL1 API Number: 50-029-22645-00&50-029-22645-60 PTD: 1960240& 1960250 Well Type: Producers Current Status: Oil Producer Shut-In since 2008 BHP: 3260 psi @ 8800'TVDss (7.1 ppg) BHT: 200° F @ 8800'TVDss Mechanical Condition: Tubing: Shut in -TxIA communication. Caliper log indicated max penetrations of 92% (2777' md), 88% (1225' md) and 85% (2387' md). 4-1/2", 12.6#, L- 80, NSCT to 11,366' MD. TD/PBTD S-41: 13,867' MD/13,867' MD(Abandoned w/CIBP to -12,000' MD pre-rig) TD/PBTD S-41 L1 14,065' MD/14,065' MD(will be P&A to-11,921' MD pre-rig) Max Dogleg (to KOP): 9.4°/100' @ 11329' MD Max Angle (to KOP): 65.9° @ 11,935' MD Existing Wellhead Equipment: FMC IC Spool FMC-120, 11"5000 psi w/1-2-1/16"outlet valve p Tbg. Spool: FMC 11" 5000 psi with 2-2-1/16"outlet valves Tbg. Hanger: FMC 12 x 4-1/2"Tubing Hanger NSCT Box 7" Csg. Hanger FMC 7"x 10" Fluted Mandrel Hanger 9-5/8" Csg. Hanger: FMC 9 5/8" Mandrel Hanger Tbg. Head Adapter: FMC 11" Tree: Cameron H 4-1/16"5K BPV Profile: Cameron H 4"Type H Planned Wellhead Equipment: No change Completion Equipment: SSSV: 4-1/2" HES X Nipple(3.813" ID), Gas Lift Mandrels: See current schematic S-41A&S-41AL1 Sidetrack Page 3 Casing Equipment: Existing: Surface Casing: 9 5/8"40#, L-80 to 3332' MD Intermediate Casing: 7", 26#, L-80 casing surface to 11,371' MD— crossed over to 7"29# L-80 to 12,409' MD (TD of 7"). 9-5/8" Cement: 1044 sx Class E Lead 11.5 ppg, 272 sx Class C Tail 15.7 ppg 7" 357 Sx Premium Lead 11.0 ppg, 289 sx Premium Tail 15.7 ppg New: Production Liner S-41 A: 4-1/2" 12.6#Chrome, 15,932' MD to 11,994' MD Production Liner S-41 AL1: 4-1/2" 12.6# L-80 slotted liner, 15,212' MD to 11,932' MD Production Tubing: 4-1/2" 12.6#Chrome, 11,937 MD to surface Tubing Fluids: 8.6 ppg w/2000'diesel or methanol cap IA Fluids 8.6 ppg w/2000'diesel cap OA Freeze Protection 10.6 LSND w 2000' diesel cap Perforations: As Planned - P&A'ed w/cement tested to 2500 psi. Pre-Rig MIT/PPPOT Data: MIT-OA -08-05-2005 MIT-OA passed 2400 psi. CMIT-T x IA - To be performed after tubing scale removal and plug set it tubing tail. (Will be tested to 4000 psi.) MIT-T - Holes in tubing PPPOT-T - 10/7/2002 PPPOT-T—Pass 5000 psi PPPOT-IC - 10/7/2002 PPPOT-IC—Pass to 3000 psi S-41A&5-41 AL1 Sidetrack Page 4 Logging Program: Production Hole Drilling: MWD/RES/NEU/DEN/GR @ bit INC (NOT Az. Density) Open Hole: None Cased Hole: None Mud Program Production Mud Properties: FLOPRO SF Reservoir Drill-in Fluid I 6" hole section Depth Interval Density(ppg) PV YP LSVR API Fl pH MBT S-41A 12,022'— 8.4—8.5 6-12 22-28 >20,000 6.0-8.0 9.0-9.5 <3 15,394' S-41AL1 11,932' 8.4—8.5 6-12 22-28 >20,000 6.0-8.0 9.0-9.5 <3 — 15,230' Casing/Tubing Program: Hole Csg/ Wt/Ft Grade Connection Length Top Btm Size Tbg O.D. MD/TVD MD/TVD S-41 A 4'h" 12.6 13 Cr Vam Top 3398' 11,994'/8932' 15,392'/8976' 6" S-41 AL1 4 'h" - Slotted 12.6 L-80 Vam Top 3270' 11,942'/8910' 15,212'/8914' 6" Tubing 4 �/2" 12.6 13Cr VamTop 11,979' GL 11,979/8925' • Integrity Testing: Test Point Depth Test Type EMW Production Section _ 20' —50' from 7" shoe FIT 10.0 ppg Cement Calculations: Production 4.5" 12.6#, 13-Cr Casing:Casing Size S- Production Liner 41A only Basis: Lead: None Tail: 3372' of 4-1/2"X 6"open hole with 40%excess, 43'4-1/2"X 7" Liner Lap, 80'shoe track, and 200' of 7"X 4" DP excess Tail TOC: 11,969' MD,(TOL) I Total Cement Volume: Lead None Tail 75 bbls, 429 ft3, 392 sacks Class G w/D600 @ 15.8 ppg, 1.16 ft3/sack Temp BHST= 195° F, BHCT TBD by Schlumberger S-41A&S-41AL1 Sidetrack Page 5 Formation Tops S-41A: Formation Tops Formation Tops TVD Formation Formation TVDss RKB Thickness TJF(10375 MD) -7778 -7844 TJE(10643 MD) -8011 -8077 -233 TJD(10816 MD) -8163 -8229 -152 TJC(11271 MD) -8523 -8589 -360 TJB(11490 MD) -8639 -8705 -116 TSGR(11880'MD) -8812 -8878 -173 TSHA(12001) -8863 -8929 -51 KOP @ 12022 MD in Shublik"A" TSAD proj. @ -8940 SSTVD @ Invert (-12220 MD) -8940 -9006 Fault 1 Crossing @ 12550'MD TSHA -8882 -8948 TSGR proj. @ -8847 SSTVD @ 12800' MD -8847 -8913 TSGR proj. @ -8882 SSTVD @ 13600' MD -8882 -8948 TSGR proj. @ 8889 SSTVD @ 14000' MD -8889 -8955 TSGR proj. @ -8892 SSTVD @ 14400' MD(DT on Fault 2) -8892 -8958 Fault 2 Crossing @ 14413'MD TSHA(UT) -8900 -8966 TSGR proj. @ -8866 SSTVD @ 14800' MD -8866 -8932 TSGR proj. @ -8887 SSTVD @ PTD (15392 MD) -8887 -8953 S-41A&S-41AL1 Sidetrack Page 6 Formation Tops 5-41 AL1 : Formation Tops Formation Tops TVD Formation Formation TVDss RKB Thickness TJF(10375 MD) -7778 -7844 TJE(10643 MD) -8011 -8077 -233 TJD(10816 MD) -8163 -8229 -152 TJC(11271 MD) -8523 -8589 -360 TJB(11490 MD) -8639 -8705 -116 TSGR(11880'MD) -8813 -8879 -174 KOP @ 11932 MD in Sag TSHA -8861 -8927 Fault 1 Crossing @ 12390'MD TSAD proj. @ -8944 SSTVD @ Invert (-12300 MD) -8944 -9010 TSHA -8884 -8950 TSGR proj. @ -8846 SSTVD @ 13100' MD -8846 -8912 TSGR proj. @ -8832 SSTVD @ 14000' MD -8832 -8898 TSGR proj. @ -8818 SSTVD @ 14800' MD(Crproj.) -8818 -8884 TSGR proj. @ -8828 SSTVD @ PTD (15212 MD) -8828 -8894 S-41A&S-41AL1 Sidetrack Page 7 Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. BOP regular test frequency for S-41 will be 14 days during drilling phase and 7 days during decompletion and surface casing work. Production Interval Maximum anticipated BHP 3289 psi @ 8884'TVDss—TSAG (7.1 ppg EMW) Maximum surface pressure 2403 psi (.10 psi/ft gas gradient to surface) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 2,500 psi/250 psi S-41A 4 1/2" Liner Test 3500 psi surface pressure Integrity Test—6" hole FIT to 10.0 ppg after drilling 20'of new hole to satisfy ECD management concerns, however, an FIT of 8.8 ppg will provide an"infinite" influx volume with an 8.5 ppg mud weight in the hole. Planned completion fluids 8.5 ppg Seawater/6.8 ppg Diesel Other Request: Given rig floor height limitations, a MASP < 3000 psi, and the fact that the three ram drilling BOP configuration is preferred to a two ram configuration with a spool, BPXA will execute the provisions of 20 AAC 25.285 (f) (1) regarding the initial testing of the BOPE as follows when existing wellhead or testing equipment prevents the testing of the lowest set of pipe rams: That lowest set of rams will be tested at the earliest opportunity during path-forward de-completion work, i.e., after the completion has been pulled from the well. Safety concerns and spacing limitations with the wellhead height and tubing spool preclude us from installing a spacer spool in the three-ram drilling BOP stack. 20AACZP5 Ck) S-41A&S-41AL1 Sidetrack Page 8 Well Control The intermediate and production hole sections will be drilled with well control equipment consisting of 5000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer. This equipment is capable of handling maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3500 psi. Notes: 1. BOPE and drilling fluid system schematics on file with the AOGCC. 2. Full ram tests are required when rams are changed. 3. BOP test frequency will be 14 days. 4. BOP function test frequency will be 7 days. Production Section Kick Tolerance and Integrity Testing • BOPE: Hydril, 13-5/8", 5000 psi • Maximum anticipated BHP: 3289 psi—TSHA (7.1 ppg C©1 -8884'TVDss) • Maximum surface pressure: 2401 psi—Based on a full column of gas @ 0.10 psi/ft • Planned BOP test pressure: 3500 psi/250 psi Rams and 2500 psi/250 psi Annular • 7" Casing Test: 4000 psi (Pre-rig) • 41/2" Liner Test: 2000 psi surface pressure test • Integrity Test—6" hole: FIT 20'—50'from 7"window • Kick Tolerance: Calculated an Infinite KT with a 8.5 ppg mud with 10.0 ppg LOT • FIT/LOT (10.0 ppg FIT/LOT needed f/ECD management) • Planned completion fluid: 8.5 ppg Seawater/6.8 ppg Diesel S-41A&S-41AL1 Sidetrack Page 9 Disposal: • No annular injection in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. Any metal cuttings will be sent to the North Slope Borough. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS- 04 for injection. Haul Class I waste to DS-04 and/or Pad 3 for disposal / Contact the GPB Environmental Advisors (659-5893) f/guidance. Fault Prognosis: S-41A will cross two faults along it's trajectory. The well path will kickoff SE of Fault D, cross Fault #'1 shortly after the KOP, pass to the west of Fault A before crossing Fault #2 and will then TD a couple hundred feet north of Fault B. Faults A, B and D should be avoided if drilling stays within the target polygon. Lost circulation risk for the area is considered moderate. The S-41AL1 will cross Fault #1 shortly after the kick-off point. The well trajectory will kickoff to the SE of Fault D, cross Fault #1 shortly after the KOP, pass to the west of Faults #2 and B and will stop several hundred feet north of Fault C. Faults #2, B, C and D should be avoided if drilling stays within the target polygon. Lost circulation risk for the area is considered moderate. DRILL AND COMPLETE PROCEDURE SUMMARY Pre-Riq Operations: 1. F MIT-OA-2000 psi 2. 0 AC-LDS tubing, AC-LDS IC. Repair and replace as required. 3. C Clean out existing scale from production tubing.(Assure clean tubing all the way to XXN plug at 11,923' MD) 4. S Drift tubing. 5. S Drift and caliper 7"to 11,909' MD. 6. S Set plug in X nipple at 11,334' MD. 7. F CMIT-T x IA 4000 psi. (Need to evaluate whether well can be turned into an injector later.) 8. E Jet cut tubing -11,309'MD (in pup joint above packer at 11,311'MD). 9. F Circulate well to 1%KCL and freeze protect. 10. V Set BPV 11. V PT tree(MV,SV,WV) 12. 0 Bleed gas lift and production flowlines down to zero and blind flange 13. 0 Remove S-Riser, Remove wellhouse, level pad-Complete Rig Operations: 1. MIRU rotary rig. 2. Pull BPV. Circulate out freeze protection with seawater and condition fluid as needed. Set a TWC and test from below to 1000 psi and above to 2000 psi. 3. Bleed tubing hanger void and IA to zero. 4. Nipple down tree and tubing head adapter. 5. Nipple up and test BOPE from above to 3500 psi high/250 psi low. Pull TWC. 6. RU and pull production tubing from the pre-rig jet cut. Test the lower set of pipe rams. Inspect all completion equipment for NORM. 7. Mill packer at 11,311'MD. 8. Fish tubing tail. 9. Mill packer at 11,909' MD. Push tubing tail to bottom (Top of fish -12,209' MD) S-41A&S-41AL1 Sidetrack Page 10 10. PU casing scraper w/strin, �IIs and make 7"casing scraper run to MD. 11. RU Eline. Run USIT. Set bridge plug @ -12,200' MD. Run CBL/Perforate (-10') C4)- 12,185' MD for cement squeeze path. 12. R/H with drillable Cement Retainer and set at-11,800'MD 13. Test for injectivity/squeeze cement. 14. Set RTTS. Test. 15. ND BOPE. 16. Change 7" IC packoffs. 17. NU BOPE. 18. Retrieve RTTS. 19. MU cement cleanout BHA. Drill cement retainer and clean out cement to -12,100 MD 20. Set whipstock. Mill window. 21. Drill 6" hole to TD. 22. Run 13-Cr 85 solid liner. 23. Cement liner. Set liner top packer.Test liner to 3500 psi. . � 24. Perforate liner. 25. Set retrievable whipstock in seal receptacle at-11,932' MD.' 26. Mill window. 27. Drill 6"open hole to TD. 28. Run slotted liner, leave TOL 10' outside window. 29. Retrieve whipstock and seal assembly. 30. R/U and run a 4-Y2", 12.6#, 13 Cr, VAMTOP STADDLE completion w/sliding sleeve and DCK shear out in GLM#4. Space out and land tubing. 31. Circulate freeze protect down IA. 32. Drop ball and rod to set packer. RILDS. 33. Individually test the tubing and annulus to 3500 psi for 30 minutes and record each test. When testing IA, assure tubing still pressured to 1500 psi to prevent DCK shear valve shearing. 34. Shear out DCK. 35. Install and test TWC test from below to 1000 psi through sheared DCK. 36. N/D the BOPE. N/U the adapter flange and tree and test tree and adapter to 5,000 psi with diesel. 37. RU DSM. Pull TWC. 38. Rig up flow path for IA freeze protect to U-tube the diesel freeze protect into place through the tree. 39. Install and test a BPV. 40. Secure well/RD and move-off well. . Post-Rid Operations: 1. MI/RU slick line. Pull the ball and rod/RHC plug from landing nipple below the production packer. 2. AOGCC MIT-IA POST POI (per WIC) (injector) 3. Install the well house, instrumentation, and flow line. (NOTE: This work will be completed under a separate AFE.) S-41A&S-41AL1 Sidetrack Page 11 S-41A ana _ 41AL1 Drilling Hazards and Con....gencies POST THIS NOTICE IN THE DOGHOUSE I. Well Control/Reservoir Pressures: Possible low reservoir pressure as drilling toward R-19. This well will be shut-in prior to drilling S-41A and S- 41 AL1. II. Lost Circulation/Breathing: Moderate risk for lost circulation for both laterals. III. Kick Tolerance/Integrity Testing: Production Section Kick Tolerance and Integrity Testing • Integrity Test—6"hole: FIT 20'—50'from 7"windows • Kick Tolerance: Calculated an Infinite KT with an 8.5 ppg mud with 9.0 ppg FIT/LOT (NOTE: Need a 10.0 ppg FIT/LOT to satisfy ECD management requirements.) IV. Stuck Pipe Avoid drilling out the top of Sag River. Possible stuck pipe conditions above the Sag. V. Hydrogen Sulfide S Pad is considered an H2S Pad, it is expected that the on-site team will follow Standard Operating Procedures for H2S at all times. Well Name 112S vel Date of Readin #1 Closest SHL Well H2S Level _S-42(SI) 70 ppm 5/14/2006 #2 Closest SET,Well H2S Level 5-43 .30 ppm 11/25/2009 #1 Closest BHL Well H2S Level R-19A 24 ppm 4/12/2008 #2 Closest BHL Well MS Level S-43 30 ppm 11/25/2009 #1 Closest Kuparuk BHL Well H2S Level #2 Closest Kuparuk BHL Well H2S Level Max.Recorded H2S on Pad/Facility 5-201 500 m 06/02/05 Other Relevant H2S Data The max recorded H2S for 5-41 was 20 ppm on (H2S alarms from rigs,etc.) 5/18/03. Last H2S reading on S-41 was 10 ppm on 4/1(1/(14 VI. Faults S-41A will cross two faults along it's trajectory. The well path will kickoff SE of Fault D, cross Fault#'1 shortly after the KOP, pass to the west of Fault A before crossing Fault #2 and will then TD a couple hundred feet north of Fault B. Faults A, B and D should be avoided if drilling stays within the target polygon. Lost circulation risk for the area is considered moderate. The 5-41 AL1 will cross Fault#1 shortly after the kick-off point. The well trajectory will kickoff to the SE of Fault D, cross Fault#1 shortly after the KOP, pass to the west of Faults#2 and B and will stop several hundred feet north of Fault C. Faults #2, B, C and D should be avoided if drilling stays within the target polygon. Lost circulation risk for the area is considered moderate. CONSULT THE H-PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION S-41A&S-41AL1 Sidetrack Page 12 TREE= 4-1/18"CM/ SAFETY NOTES: BEFORE RUNNING r BTM.LATCH /VaLHEAD= FMC GLV'S IN OLD STYLE K GL BG 2LS M'S;NO-GO ON CTUATOR= BAKER S X41 L 1 RUNNING HEAD NEEDS TO BE MOVED UP 112'.WELL OEV. (B.9.EV= 71.2' a 70 DEG Q 12100'8 a 90 DEG Q 12654'. BF.ELEV= 37' :(OP= 1131' Aix Angle= 5006135' ]alum MD= 11852 0 2215' -14112 HES HXO SSSVN,D=3.813' I Datum TVD= 8800'SS GAS LIFT MANDRELS ST MD TVD 0EV TYPE VLV ITCH PORT CITE 9-5/8"CSG,40 6,L-80,D=8.835" — 3332' • •6 4072 3482 49 KBG-2LS DOME BTM 16 05/10/96 5 6622 5189 48 KBG-2LS DOME BTM 16 05/10/96 8131 6199 45 KBG-2LS DV BTM 0 05/10/96 3 9206 6941 48 KBG-2LS DOME BTM 16 05/10/96 2 10280 7872 46 KBG-2LS DV BTM 0 05/10/96 Minimum ID = 3.725"@ 11923' 1 11233 8329 46 KBG-2LS S/O BTM 24 05/10/96 4-1/2" HES XN NIPPLE (NOTE; PROBLEM MANDRELS;REQUIRE SPECIAL VALVES I 11300' —141/2'HES X NP,ID=3.813' 11311' 7'x4-1/2'BKRS-3PKR ID=3.875" 11334' -14112'HES X NP,ID=3.813' I 11355' -1410HESXNP,D=3813 4-1/2"TBG,12.6#,L-B0,.0152 bpf,ID=3.958' -1 11366' / f 11 36 7' 14-1/2'WLEG,ID=3.858' I I r CSG 26#X r CSG 29#X0 H 11371' I * * 11372' ELMO 7"CSG MLLOUT WNDOW RA RP TAG -I 11782' ' i / - 11892'-11905' (5-41 L1) 11921' -I BKR SETTNG SLV,D=5.250 1 194 8' -1 TOP OF 41/2"SLTD LNR r x4-1/2"BKR ML PKR D=3.880" - 11909' 1 x 2d' --" - 4-112"XXN PLUG N XN NIP(SET 04/05/98)(SLM) -1 11897' ,, 4-1/2"HESXNNIP,,ID=3.725 H 11923' 412"WLEG D=3.958' H 1193V —/ "5.41 L1 IS ANCH SLTD LNR ` W/O LNR TOP PKR OR HGR. RA PP TAG H 11987' f ) `WELL NOT WI ACCESSIBLE 7'X412'TIN SSPKRID=3.915" -{ 12229' g 412"SLTDLNR,12.8#,L-80,.0152bpf,ID=3.958" H 14035' TOP OF 4-112'SLOTTED LIVER H 12235, I 7"CSG,290,L-80,.0371 bpf,D J=6.184" - 12409' 'HA � ■ I` PERFORATION SUMMARY I. `-. REF LOG SLOTTED LIVER \ - \ . ANGLE AT TOP PERF:70®11948' .. Note:Refer to Production D8 for historical pert data - ., SEE SPF NTERVAL Opn1Sgz DATE .. ... S-41 L1 ". `•. 4-12' SLTD 11948-14005 0 04102196 `�. .. S-41 4-12' SLTD 12235-13865 04105/98 `'. 4-.12 SLT D INK 12.8.,L-o0,.0.a2 bpf,.8-3.95o I 13807 DATE REV BY 1 COMMENTS DATE REV BY COMMENTS I Y UNIT 04/02198 ORIGINAL COMPLETION 01/02/07 RCT/TLH PROB GLV CORRECTION WELL: S-41L1 0326102 CH/KAK',CORRECTIONS 05/13/08 SWC/TLH WRP PJLLED PERMIT No: 1960250 10/08/02 JAL/KK WAIVER SAFETY NOTE AR No: 50-029-22645-60 05/02/03 PP/KAK I WELL NAME&A R#REV. SEC 35,T12N,R12E,4152'FSL&4504'FEL 02/21/06 RRIITLH WAIVER SFTY NOTE DELETED 11/05/08 JLJ/TLH WRPSET BP BcpIoration(Alaska) S-41A &S-41AL1 Sidetrack Page 13 TREE= 4-1116'CAN �AFERY NOTES:S 'A ORBA S,4A A L 1 (8.B.EV= 71.2' 3F.E-EV= 37' - (OP= 1131' Max Angle= 50®8135' C] - -2200' 412'HE X fipple,ID=3.813" 'alum 11344 11852' 2aken1VD= 8800'SS C�1SLFTAAANatBS ST MD 1VD DEV TYPE VLV LTC-I PORT DATE 9-5/8"CSG,40*,L-80,0=8.835" -I 3332' 4 3742 3332 47 KBG 2LS BTM 0 3 7108 5588 48 KB0-2LS BTM 2 9718 7354 47 KBG-2L5 BTM' 0 1 11575 8752 82 KBG 2LS BTM iJl,nimum 0= 3.725" @ 11937' 4-112" HES XN NIPPLE I 7•CSG 266X7'CSG 29K XO - 11371' I X I _ 11880 4-1R'HEs X NP,it)=3.613- ,-71 ►� ---- 11675' F.7"x 4-112"1-ES TNT PKR,D=3 856" ___I 11700' Ft_ -1TI HES X MR ID=3.813- I MI 11715' Ssle pocket nandrslfor RA RP TAG I-1 1 17 82' \ / � ls t 11735' -1 BAR 4-1/T 13-Cr Sliding Sleeve I r CSG MLLOUT WNDONI/ / 11892'-11905' (S-41 L1) 7' retr.whipstock H -11,932' 11921' .9 BKR SETTNG SLV,D=5 250" 11948' —TOP OF 4-1/2"SLID LNR L� « - L.-1173LTD LNR12.81,L-80,.01:52bpi,D=3958"H ,!5,217 -'-' • --RA RP TAG_I3.11'987' 4 _-____ 4-1/2" LTD LN 1 9•,L-80.015�bpf =3.958' 14035' I ( /_' '� ------------- A y__ ! • IBM IBM -CTPw Tie-beck sleeve D=5.25 11969' - i 4-112'HIBa 9Cr XN NIP,ID=3.725' 4-12'T:-,12.61,13Cr-B5,.0152 bpf,D=3.95H 11979' I •, f I 5x7'BAKER HNC Liner Hanger ID=4.43" H 11994' I - l' - - - - _.. IrWhipstock -12,022' 'Perrs for cement:air I-- -12,185' I Top of Fs, H-I 12 2719' Permanent Bridge Rug -12,000' J T'X 41/2'TAN SS PKR D=3.915' H 12229' I—c--�i - / TOP OF 4-12'SLOTTED LINER H 12235' W, 4-1/7 Said LNR,13.61,13-O 85,10=3:958" H 15,392' A l 1 7'CSG,293 L-80,.0371 bpf,ID=6.184' H 12409' I I_ - 4-1/2"SLTD LNR 12.6*,L-90,.0152 bpf,ID=3.958' H 13867' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUD HOE BAY UNIT SY02196 ORIGINAL COMPLETION 01/02/07 RCT/TLH PRO8 GLV CORRECTION WELL S 41A&AL1 03126/02 O-I/KAK CORRECTIONS 05/13/08 SWCTLH WRP RJLLED PERMIT No:1960250 10/06/02 /A LJKK WAIVER SA FETY NOTE AR No: 50-029-22645- 05/02/03 PPYKAK WELL NAME&AR 9 REV. SEC 35,T12N,R12E,4152'FSL&4504'FEL 0221/06 RP1-111-LH WAVER SFTY NOTE DELETED 04/08/10 MGR A and AL1 New Sidetracks BP Exploration(Alaska) S-41A& S-41AL1 Sidetrack Page 14 N O OI^ r.dNN G.OQN .rNN 42825 ONO W N AA I148 2g22 288 r' C N NNNNN GP ASP as NNoi d0 O('IN nir ON. .6a N O (ON 4NN NOO pNO1 GIOpD Cf OD p)l'�C) (CG��fG TOIO COI N1�0�0 O NOI O N t7 d0 y�y NOO 0 m- sGfANN mv,zrz ONI r0 .N 2822. NNNN(°.I 7,224 N 0,:347,25 (d0(0(r0 00 W d d d d d d d d d d ..-.G.. N N N N N .NNN N ..... N N a ; 0 O.Q.N2222iiii; NON . W N j;j;j . 000, OOW W . . O O 1j ;;: S A N. 2 S 7 A N O a n(r 0 n N<8 NNrC0 N. NNN. N NOSN Nd O N NNN N NNN N 0 NNN W 22222 2 2222 220 O N O O m;NN d d d P42281 O 7-N N N ^NNO 0 O N N dd 8 0 4 2 8 42'222 r C�1 82222 28rN 7N co NNNN 22222 N N N N m N c0 2I 824 ;S NN N O 3 u tZ 1 0 ;a o C o m U k W m L N NNNN 'lr°I 0NN 4'4444 GS,WAS '202 222E2 NO^nr rn N a C ..... 0 U(000 NNCCIN N 666 66(0 NNNNN NNNNN NNNNN cocoa :442 0 Y 0 N O N N O O 00000 O O O O O 00000 O O O o 0 00000 0 0 0 0 MOO J'L° O O O 00000 O O O O O 00000 0 0 0 0 0 00000 O O O O O 000 0266666 N N N v o 66666 6 6.6 6 6 o n r r o r rrr r r rrr o 000 Cm OD a CID LLa J ,x 0C x...x xCKO:Q: NJJJO) K2 Q2N2 CD!0!CD: O:RO:Nb: x.x a r N 2 r M N N 2 N c12°r r 2 O s N S .2 2 r r r.N N 8 2 N r N d 2. C d w y -4666 N N N d N N 7 N N O O O O . ^N r N N 3 0 0 M .60 O O N N N NNN N N N N 8 . Q OD .s N N ' r r N co N NNN r r .- a m q L N EE ;2 o N w ° W Q A j G m m 2 3 sp 2SW,9 0°G4rr r O 828 NOOSO 4252:2 -2°NP3 48:282 PS8 y O d S S O. NNNdd .-0 NNfv- d. NN,- N .7 NTN d00 ..0 0 N.,On 2 NVO10 .O. yC COaV .. O C O CD ?p C° N° p N p m ASSN S N co N.N N.co t p N 02°° rrr r yANN pp PN r A r l�n r r EENCI °OWE,- °N w- ° ( 7 m Om 7 o 0.N N. m r V N N E r.O O N .3L328 ar02022 282p 2217-I22 2217 224 T4282 coca 0 Cgn.co ONN N V r co � m r pp NT .�coO N<N N y 4N Na r�N Q a 00400 a o ee o 00 444 42°°2 .. o (•OCCN oA2`�nn n O VZ c o Q v )- O s a n f Z m >j M E d W l m s t a C a 0 o g N V O C 101 31 I R W g Nr0 V N V N CdO ON g ig, Nh V Nam O W A 0 (dN NN. d°° 0 J Ym O H Y P y n OOf 01 NONp 8m N t?7, NrCOON NNNNO N; Np N� C (0 m C N N O m G 0 0 e G O '4<N2 NNNNN N227., 22Am • 2 Q) co KC b SLL SY CS U a Q o up p mm— mz V q O Qa A Z Y YO m aD m u 90 3 o L 0 m> r r o 7 r 2 o 2 z( r J pppp pp a 0 j e N(On NN M .rz 0 O1t°OcoNN �ON.iO 008,7(20 0(NO.NN .a.°O(o ASS a r d O.d. aLt r W OaD 66666 .0 -N NNNN N NN.-. .N OO N N(.1Nd d N N MOON Ndd(•1N ONr�r NNNNN N NNNr ... NN 0 CD 2 2 2 2 2 2 2 2 2 2 MM... ..WW. ..... ..... .0 0 0 0 ... M_ 4 T co.. ,-NON °r NN,- ° ' . 00N(pp a ,- ,-�.np 0ppp O 2 : Nc. O OO d0r 0 NO aa..- a r ,7 0 Cl) ; NN .w N7N W 2 22 '..'8886- Gh ' ' GN d O82N 288 r N 0N22N 2 22§2 o 2co 2 N..2N 2222. 2 2222 11222 22 2 0 2.° - N N m N D p O m e ONgg.- Nm NOOOQ (p282u0i NNOO. 82200 SP 448 4A8r.; 0 co00 S O CJ N `.. N(gy(pp(O(ppT. (hN pp N ` mN r N(O(O(,-; ..ON100 0 ,.N NNNNN N'dNN NNN.O ON(0(NOiO Nco(NO ($ . `o E NN N N N O1 . 6V. po =-0w 2 3 N N a . .m N N p p Q C O N 0)m 7,27—PPP-WA Sn 8N(0 '(SN8E N(r08�< C2.aNONN 284%8 ;SPAS aN088 O C° co O 0 y t0•f ^adOrl Orf AOdIN NN rra as a6666 CACJOO : . M4160 QOC 2.�NT N a l.^f N N\ r OI°O r 66666 .N ..... ..... ..... ..... ... °51,8-o 2a aNE. ($ o `°6 my5O`p¢p¢"- $maJ��arB�i��ZZZOo 2E28888 88T V,7 T 88828 Og dc° 28882 82882 8882w 8N N 20N8 ° ,7 0 ° . c.igAd O'p° °a p°0N ma O NNN N,7NNN NNNN ,7,7N p(. N 1 d d 0d ;7;4;“.7 0 N D D d d dd d .1. 1..o. Q to a E m N 21 . '4.1 O a W G N N W u u G m`= C .O. y U II11 H m C lq:v e LL H N In q i W R o 9 J a > m m 60 2 N O C m Z O gCCCm C 6LO O t,-8 l'-' O O g and .t O O O Y rn 2° 2° Z o r Z°o' t° III Ol �cg_ m mm vWgom 3m(°v aU(o U,�3a U ao� a ¢_ 03 as 8.%16 m2 m po; > at 3o 9P o dI onZ o° Z °zY ° Z °OZ qq ° Z d° CU W h;m7NNr(9JJ(7(7 U F= rmU .wU �i wow W U (h w`U °. ti> wU ul° a _ __ . _ . . . . . . . . . . . _ . . . . . _ 0 k SI S '0 SI a \ < 2 f 5 \\ P8 0 co §��jg ) §i ! k\ & } !.-. -} )/ -' = 9.:@/a« •o-dd $ ! 2�`w �2S28 •- E auto„ ;",t- ‘— :: :; ©« .2388 < �, k2ga. § g§2® k 00CC0 0 0 op IL_ ! (e§o° > ,� , } 1-(22 / � ®�}){ 2 \|!#; V ] P. \ ` i ,— co } !28 co ! q„a ƒE ;; ; k E --CCI - 8 i !///8 / § »)>») ;.\\\ k ! (§§f CO C4 0 CD ■,{j\ 222§ 0 I- q§§5q #|--6 ; glom)` 5'0 CO � , ® ,7 !``q $21 co CNi |ti£§§m°m § ! :eta' °�((ƒ \ 3 ) .....( I e A ( § ) o £ 2 k C. ) J I 1=1:1 , 8c. L I -4-,7 E sm Fi = �} in 3 C 2 n . , . 8j + g o Cl) k % , 2 \ 2 ' j4) — — / 3 6 0 n \��g j ƒ O 1\\ f \ \ f §§! 2 / ƒ , k \\) .�_ . .1- 8 ] > §§§ k \ § .� CO• \\ § § / 2 ! , m `g ` _ 7 ) a P..`4 N. 7 o 1 0 ` § § a 1. ) ) § \ § LU� j | =z } \( k 0 _ 2 Lo!, ! . 3 1 ! ° V \ |i { § F. 'R, / � . G « ° -a 0 G. !; / 6- ,1 7 ............. ��. . f \ i 1m U) )) e. / }1 ) ) § U009:(W1.=aoSa1 by 0 Schlumberger WELL I FIELD RUCTURE S-41A(P6) Prudhoe Bay Unit -WOA I ST S-PAD Magnetic Parameters Surface Location NAD27 Alaska State Plane.Zone 04.US Feet Macelleneoea Modal: BGGM2009 Dip: 80.961' Date: December 01,2010 Lap N 702117.932 Northing: 5980354.939US Grid Cony:090981380' Slot S-41 TND Re Rotary Table(8559 above MSL) Nag Dec 21.782' FS. 57701.3nT Lon: W 149 2 3.010 East, 81893012 IIUS Scale Fad:0.99991807 Plan. S-41A(Pe) Srvy Date.Apra 01.2010 5500 6000 6500 7000 7500 8000 5500 5500 4-112•Lnr 4112"Lnr 1L1 1 5000 r y.�e a 5000 -41 1X 90°Pt - Erid Cry Cry 6/100 .• '.90* 5-41! Cry 241100 ;End Cry 11/4 i IF 4500 --- '•--'••- • •• 4500 5-41 Wht«k Top Bas.Wh)pst ips«k A T(a•In Survey A A Cm 6/100 Z S41ATgt2 End Cry 4000 ..- Cry 7/100 4000 L� S:41ATgt3 C :End Cry : Cry 7/100 II : 901 Pt 0) O7 U S41ATgt4 CO v 3500 —•--•--- 3500 yEnd Cry Cry 6/190 S-41A Ygt 5 End Cry 3000 a 3000 TO 2500 2500 S-41A 2500 5500 6000 6500 7000 7500 8000 «< W Scale=1(in):500(ft) E >>> BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well S-41 Project: Prudhoe Bay ND Reference: S-41A Plan @ 65.50ft(Nabors XES) Reference Site: PB S Pad MD Reference: S-41A Plan @ 65.50ft(Nabors XES) Site Error: 0.00ft North Reference: True Reference Well: S-41 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan S-41A Database: EDM.16-Anc Prod-WH24P Reference Design: Plan#6 S-41A Offset ND Reference: Offset Datum Reference Plan#6 S-41A Filter type: GLOBAL FILTER APPLIED:All weilpaths within 200'+100/1000 of refen Interpolation Method: MD Interval 5.00ft Error Model: ISCWSA Depth Range: 12,022.00 to 15,391.91ft Scan Method: Tray.Cylinder North Results Limited b er-eenterdistanceof-1-,736.34fi Error Surface: Ellipticat-Conies Survey Tool Program Date 4/8/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 142.60 9,379.37 S-41PB1 Srvy#1 MWD(S-41PB1) MWD MWD-Standard 9.473.01 11,984.35 S-41 Srvy 2 MWD(S-41) MWD MWD-Standard 11.984.35 15,391.91 Plan#6 S-41A(Plan S-41A) MWD+IFR+MS MWD+ IFR+Multi Station Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB R Pad R-20-Plan R-20B-Plan#4 R-20B Out of range R-20-R-20A-R-20A 13,574.43 16.885.00 600.32 460.95 184.15 Pass-Major Risk PBS Pad 5-110- n - n#r S-110A Out of range__ S-110-Plan S-110AL1 do not use-Plan#2 S-11C Out of range S-41=.&-4_1_,S411 _ 12,04927_. 12,055.00 0.86 7.02 -_—_ -3.11 FAIL-Major Risk 5-41-S-41 L1 -S-41 L1 12,024.32 12,035.00 29.14 12.44 23.41 Pass-Major Risk S-41 -S-41 P81 -S-41 PB1 12,074.72 12,020.00 116.98 166.98 -43.66 FAIL-Major Risk 4/8/2010 10:33:42AM Page 2 of 3 COMPASS 2003.16 Build 71 Project: Prudhoe Bay Site PR S Pad_ Well: S-41 Wellbore: Plan S-41A Design: Plan #6 S-41A From Surface to TD Scan interval 100 ft Scale 1 : 100 S-41 PB1 Fails major risk rule But passes risk 1:200 rule 0 — .-LS-41/S-41 { -- ( 12423 11S-41L1 330 ( 301 S-4116.41P81 253 • 0 6 201 300 60 12291 12+66 151 3 \12 _,, if 271 1>1 0 1 1219. 12093 1270 l 90 i n4 \ V i v� \ \ I � � I � i � � �� '' \\\\ \\ " // // / / / , � V\� � \\\ / //// _//\/71 A/ C/ IN 240 120 \N.,,,,,,,...........-_______________—,,N s\ _ 201 N'''''"..,..........„,_________ \ 2! 30G 21 150 \ 35' 180 Travelling Cylinder Azimuth (TFO+AZI)[°] vs Centre to Centre Separation [100 Win] Alaska Department of Natural T' sources Land Administration System Page 1 of/1!i NAlaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources I _ Alaska DNR Case Summary File Type: ADL File Number: 28257 6 Printable Case File Summary See Township,Range, Section and Acreage? O Yes Q NO [ New Search j LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28257 '?aP__- Search for Status Plat Updates As of 08/02/2010 Customer: 000107377 BP EXPLORATION(ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/11/1965 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: 012N Range: 012E Section: 25 Section Acres: 640 Search Plats Meridian: U Township: 012N Range: 012E Section: 26 Section Acres: 640 Meridian: U Township: 012N Range: 012E Section: 35 Section Acres: 640 Meridian: U Township: 012N Range: 012E Section: 36 Section Acres: 640 Legal Description 05-28-1965 ***SALE NOTICE LEGAL DESCRIPTION *** C14-52 12N 12E UM 25,26,35,36 2560.00 04-01-1977***UNITIZED LEGAL DESCRIPTION*** PRUDHOE BAY UNIT ESTABLISHED T. 12 N., R. 12 E., U.M. http://dnr.alaska.gov/projects/las/Case Summary.cfin?FileType=ADL&FileNumber=28257... 8/2/2010 Page 1 of 1 Schwartz, Guy L (DOA) From: Rixse, Mel G [Mel.Rixse @bp.com] Sent: Thursday, August 05, 2010 11:11 AM To: Schwartz, Guy L(DOA) Subject: RE: S-41 P&A( PTD-756024) Guy, e16- lol It was not a priority to have pressure integrity on the upper lateral. The squeeze was just to limit production from that lateral. If we have pressure integrity that would be great. Call if you need to discuss. Mel Rixse Drilling Engineer BP Exploration Alaska, Inc. email: mel.rixse @bp.com Text Message 9072233605 @txt.att.net (907)564-5620- Office (907)223-3605- Cell From: Schwartz, Guy L (DOA) [mailto:guy.schwartz @alaska.gov] Sent: Thursday, August 05, 2010 9:50 AM To: Rixse, d Subj ct: S-41 P &A( PTD 196-924-)• ' b! Mel, Per our discussion this morning, since you are squeezing the upper lateral off with the retainer set at 11800' and followed by drilling up the plug and cement to 12100'. How are you testing to see if this lateral is isolated ? I assume you will be pressure testing casing before you drillout the first Lateral at step 20. Interesting P &A ... not the normal CTD job. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) 8/5/2010 TRANSMITTAL LETTER CHECKLIST WELL NAME PTD# ,/ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: .,el/44/TT' / Ay' POOL: ,,E'C/e),,el06• Aoy, /G • Circle 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 perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1/11/2008 %), @ CO O) 0 a) a O 2 C3 , c Q I I C 0 2 p : 1 W L Cn o E O co c : 4 E O a co fl's co 2 : : L. •3, o .-- t' co (I) M O. m m g, `o N. > v d 4 o E' I—. a) gyp, 7 �: ( fn a) a o .N o c a) � 1 Q v 4 > o) a. CO m c: o. a CO' O: 0 o N: m: (0 w c v Y d o, M: .. c E O c, in .Q II w co 1 a l I a) O • w . • �: o a 0: _ N 0 ce aornp � v; c m' N' 'o 0 a m N: t C' \ ce CL a@i c us o' c o. >' u a n o) w '0 3 > m, E N 0 N N N C �: 0. @: C: 'io' CO N v: a I m' O' O 0 O' a N: CO 0 Z @' oc 7: 7. O: N. 0) O O a c Q N a3 Li] m 0 ) O a o a M a y g, 2' I CO Li O tl) M O) W H) CO CO VY N (A Q. a), a) a). a): a), a) a) a), a), a) a) a) Q. Q. Q. Q. Q. < < Q. a) a) a), a) N, Q. a), a): a) a), a) a), < o < < < < a z > > >- >-, } >. >. >. >- >- >- )- Z z z z z z z z >- > >- >- >_ z, r }, >_ >- >_ >_ z z z z z z, C0 0 m N i O �, o @ ( . E 3 5 m 0: o c a�) I c C1 w O•o 1 p. ` _ >, N 3 E c� . o a E o > U o m; a) 3 c: ✓ o 3 a)cn 0 (0 M, d m' J a a) Ow CO rn y, Q vo, 0 m o. o CO a 0 V 0 N' a _0 V' O. Q y: N O. c, : N .0) N N, a . 0 I 2=, 4 7__N, a) V �: O. CO a): 'O: y. oo. w N: c, 0 co) w v a) a$ o, 4 M a 3. ' .@ . aci, �, r°) U, N: N: ■�: c: o �' n m, 3 �> -o o, a2i; (U) - c C - m, _c v q o 3: o; ° a) V •- 4 .00 O =, �, co O. N O a) f0 >; 3. O, �j �' '� 0) t E a) lC -O O., �. 3 co, N m = r o Z v) a) 3 0 m' 3 0 Q (n co a) I of w z '0 o C 'O O co c O a3: N. O, D: O c a)' CO O O O) a) a _c c c d' c O a) N o m: >, U > O 4 a) N CO O, O p)N 4, 0 Q E E = -co c c E a) o (`') c in, H c o d c c o w a) a N s a c c 0 2 0 -`o �, o m a) 0 w, c. Q a o o S, U 'n 2, 4 a� g' o a), a ° �, 3 0 > mT Y m y Co a o: a) c c c a. N o -°- o c. a? C 0 o m o o CO 'm a) Q m 0 U o o) o a) a) .) J E o 0 o m o > > 4- o (6 m ?4 (6 o f E E �, o, > _ o c 0 0 ._ 3 a) m' 3 E a < c a o o m a n o r _ �� m v; co a�i: m' 0 C o �, M m N, �, y o o a 3 0 '� o 3, m E o n V �: '�: 6: o, CO � � o y: a @ 0 3, o; CO Z o W U a O'' O. c. a= V. 0, >: O: N. .Q "O, "O: O: O: E, p. c O, y. O. O. c co- 0: N, -O'. N, (6, O c) c 'O '''' ''5 N ] N: v as a) CO o, a) m Y, m, o' E' a) E r o a) ,�, c, I— a) a -- a)' a)' - N O 6' a C N. U, a O`' a) a) _ N a) ' N; "O' N' E; o o N w y C ' C O oo Qi _c a N, 0 a a i...,..' 7�, e' O. y, y, a -o o, as: E: P. o. 4 N: �, m w' ` '�, N, m a m m ,_ o ,„ o = of 3 = ° N O ui o 0 T) O�. w �: C: = 4 O. N: N, >; r' N' a) 3 c -O' co •c' C a' a' a) c C, N, N, c Q _, N. O, V, w0. O N, N, >, = U).. LL J (0' .: 0 -p: -O: U •_ C, N, �, -O -E a) C. W •N' -O "O O 'C? O: L 3 a) a N .. O a): .17: c, (a ' E, a N E N' a) w' .O.' co V 0 _c c: c a) -3 0 a) a)' CO a7 O a) 7-?, 0 N Y O o (o c a), c O. co F w w 3. CO C: (0 c m o o CO: CO E 5 (n a >' o o' -o o' a) m' =' 7 a Ea p c —o, U m' a) O c a)' (1) m a`) 0 c a a): o o. ca m: ) vi: 3 N, c v, a: J co E o) .ar a) a) a) a): 0 m E: E c y. 3 cai o P 'C I- 1-; ~: 'v E c aoi cf a; a o a 5 E �, m, c, m >, a) a), c, o, V 0, 0, Zr), Zr) CO, o o = 2' 2 2 o: -o, m. -o: 0 0 .c o a) a) m. 'a). N: o. I o V m a �, D, 5 5; 5, (n, ', 0 0 a, a 0 �; Q a z 0 (0 0, 0, 0, 0, Q. =, Q, w 0, c0 m 0 5, N; 2; a, o co (n, U, W a O N M V «) O N. a0 0) O N M C' LO O aD O O N M '7 (() (D N. a0 Q) I E _ N co co co O •'- N N N N N N N N N N M M M M M M M M M M F O O O y w O w O +d O c 2 O c R N as N CO N U O Ce O O 0 N co 0 co O N Eo y W % co c oo p O. To a) T 1 O E W a E a 0 En a -J O a Q 0.t 0 dIQ Q W 0 Q Q 0 a w 0 0 a> 0- N N_ a) D O N L _ a> c Q C 0 a) O • L w u) D O -L- E O CD 0 0 Lo co c o D N Q (O 93 N H Z — D a) } m O w �' E O ri a = co 0 D �' v as as 3 0 o _C ./ N 0 0 = CO E 0 CO To Z a) N _ a) D C C X • Z 0 a> w m g d > 0 O_ O_ O_ O_ 0 0_ O_ O. O_ 0 O_ O_ O_ O_ O_ O_ O_ w w w w w w w w w w CO w E E E E E E E E E E E E E E E E E Q a) a) a> 0 a) a) a) a) a) a) a) a> Q Q Q c c c c c c c c c c c c c c c c c o Q Q Q Q 0 Z >- r } } >- } >- } } } >- } Z Z Z Z Z Z Z Z a T H 1. O4; w w ->-:, U N i m To E.E O _U 0 E c a> w O a) 7 T O U. .-'-2-• T w c w C L O 70 0 Lo O C a) T 7 E o ° ° E 3 o a o co -° 3 M O c°>i o U U C O a)J CO .Z y Q N O U w w a 0 o E w w as (1) (n w a) O o w °' O -o (>6 O N 0 a N U V N C V J a 7 CC Hi > 0 °O 0 cr "O N a)' .@ N >+ .L..� o D "0 O o od E a> (0 '5 0 M -0 O 7 N w 2 co m 0 L U U) a3 7 3 O (/) c co L C w 3 0' � 7 Q w w a)' a) O) W "o' O C "O o a) C 7 a) a) 0- _ D O a) CO 0 0 0) a) L o C' a) �o '> 0 > -o 0. a) d c o `o ° 0 Q E E -° c c E a) 2 0 o') C c in H c o c.$ w cK c a), a) °- N L n C 0 .Q L Q U N d O p j w w T = Y o 0 0 7 o �, m Q a o o) 7 0 0 a) o T 3 ° D ' _ D < _0 O 0 0 0 C' O S. 7 O 'O CO O ° -• a) 0 O 0 @ O N @ 'IO' 0 < (0. w "O O O O N c O c m E n c c a> r o o a c' 0 m w — c n o co o � E 3 3 0 o' a) m 3 v m a 'w ._ 0 o a 3 a Q C C o N N ca a a 0 3 3 O> m' a) -° E Da) N .E a> 3 m 2 M0 a aw) 0 2 a .0 ° w o Co aci m Cl)> o O Z .Q a' C N N "6 > a), = L o -5 U - 0 7 V U O w n E j. 0 O L O O O C. "O "° > `O Q "O "O. p CO O C O a) O O C a• o w a a).. @ O. O) C 'O a N, 7 41 C E a -o m a as 0 a) a) _ m o E E E L 0 o w p w 0 H N a "O N N 0' U 7 7 d C V U 8 0_ O a) a) -0 Cl ' N -p N E 0) O N 7 c �O' Q L N N @ O O rn N Q N N a -E r N N O) 0- a) (O f6 a) O) N o N O) C U 3. N 5 w N all_ O C L TD- O :° n n a) N >, a) a) 0 3 c -0 0) c C o• o• a) c 0 = 7 n t m o 7 0 a) a >. o a>Cr LL J f0 _0 -° -°, -°. 0 C N a L. L -0 -E a> C O 'w "00 a) O '2) 6 L 3 a> "O co C U O U L c o "C E d a y a) O L C C " U (0 = 0 O (6 C a) C. 0 a3 X ° ns as as a°i m Fa E (0• 3 7 o 0 as <° _ °? 0 as — c v ns w m 0 c w .. c m o o o m o o 0 a`> o, (n o c 0 a) o o (o •o m ui. °- E 3. Cl) c .°.� o, -o a a> 7 ( > •m m a — a °° 70 0 > > 3 0) a 6 0 m w w Y ( _ a E 0 CO E m a> a> a) a) o a) E E c 3 c c C F r F N a) m ? a a 0 o a U E m u a) c 0 c 7 a s �> �> as o 0 7 2 m a m -0 a = 0 0 L a) a`) m a) o o • a_ _J D co = O O d d 0 Q a z 0 m 0 0 0 O a = a = 0 m m O 2 a 0 co (n O 0 ca a=. N M V O (fl h CO 0) N M V (I) CO N- W 0) O N N M N V (N O (N D r N 0N N O M N M V M M (M O r M CO M r, 0 0 0 :; o ;; c? o O c a> N W f0 N 0 C(,) - 0 O N a) O N �O - j` 00 C co O w.. .J N N w m a> E W O E a 0 0> a 0 a co O0 0- Q Q Q I j Q 0 Q Q