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Home My WebLink About210-126MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg DATE: P.I. Supervisor SUBJECT: FROM: Petroleum Inspector Section: 21 Township: 11N Range: 12E Meridian: Umiat Drilling Rig: n/a Rig Elevation: n/a Total Depth: 12581 ft MD Lease No.: ADL 028263 Operator Rep: Suspend: P&A: X Conductor: 20" O.D. Shoe@ 114 Feet Csg Cut@ Feet Surface: 13-3/8" O.D. Shoe@ 2342 Feet Csg Cut@ Feet Intermediate: 9-5/8" O.D. Shoe@ 6228 Feet Csg Cut@ Feet Production: 7" O.D. Shoe@ 12570 Feet Csg Cut@ Feet Liner: O.D. Shoe@ Feet Csg Cut@ Feet Tubing: 3-1/2" O.D. Tail@ 12358 Feet Tbg Cut@ Feet Type Plug Founded on Depth (Btm) Depth (Top) MW Above Verified Fullbore Retainer 5215 ft 5183 ft 6.8 ppg Wireline tag Initial 15 min 30 min 45 min Result Tubing 2738 2592 2522 IA 2733 2588 2520 OA 160 279 249 Initial 15 min 30 min 45 min Result Tubing IA OA Remarks: Attachments: Operator had trouble getting past 3500 ft with 2-inch bailer and brush, took off brush for roller stem and put on 1.75-inch bailer. Got down to 5183 ft with hard tag; retainer was reportedly set at 5215 ft E-Line MD. There was nothing in the bailer when recovered; thinking they tagged retainer. As per procedure all cement was to go below retainer. For the CMIT TxIA, they pumped 2.8 bbls and returned 2.3 bbls. January 9, 2025 Kam StJohn Well Bore Plug & Abandonment PBU W-220 Hilcorp North Slope LLC PTD 2101260; Sundry 324-660 none Test Data: P Casing Removal: Andreas Ponti Casing/Tubing Data (depths are MD): Plugging Data (depths are MD): rev. 3-24-2022 2025-0109_Plug_Verification_PBU_W-220_ksj 9 9 9 9 9 999 9 9 9 9 9 9 9 9 999 999 9 9 James B. Regg Digitally signed by James B. Regg Date: 2025.01.31 15:49:44 -09'00' From:Lau, Jack J (OGC) To:AOGCC Records (CED sponsored) Subject:FW: W-220 PTD 210-126, Sundry #324-660 Date:Wednesday, January 8, 2025 8:43:48 AM From: Aras Worthington <aras.worthington@hilcorp.com> Sent: Tuesday, January 7, 2025 2:08 PM To: Lau, Jack J (OGC) <jack.lau@alaska.gov>; Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov> Cc: Tyson Shriver <Tyson.Shriver@hilcorp.com>; Joseph Lastufka <Joseph.Lastufka@hilcorp.com>; Joseph Engel <jengel@hilcorp.com>; Abbie Barker <Abbie.Barker@hilcorp.com>; Sean McLaughlin <Sean.Mclaughlin@hilcorp.com>; Torin Roschinger <Torin.Roschinger@hilcorp.com> Subject: W-220 PTD 210-126, Sundry #324-660 Jack, Per our phone conversation this email is to correct the record on the previous revision sent and the email below. I stated below that the we “successfully MITT’d the tubing to 2500 psi with AOGCC witness on 12/272/24…” I mis-read the Well Service Reports which indicated that the SL tag of the TOC was witnessed, but the successful MITT on the same day was not witnessed. We realized this mistake a day after the below email and scheduled and performed an AOGCC witnessed MITT on 1/2/25 before proceeding with the tubing punch and the subsequent cement job. My apologies for the error and the understandable confusion between the Inspector and you as a result. Respectfully, Aras Worthington Operations Engineer Islands Team Hilcorp Alaska Aras.worthington@hilcorp.com 907-564-4763 907-440-7692 mobile CAUTION: External sender. DO NOT open links or attachments from UNKNOWN senders. From: Lau, Jack J (OGC) <jack.lau@alaska.gov> Sent: Monday, December 30, 2024 1:44 PM To: Aras Worthington <aras.worthington@hilcorp.com>; Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov> Cc: Tyson Shriver <Tyson.Shriver@hilcorp.com>; Joseph Lastufka <Joseph.Lastufka@hilcorp.com>; Joseph Engel <jengel@hilcorp.com>; Abbie Barker <Abbie.Barker@hilcorp.com>; Sean McLaughlin <Sean.Mclaughlin@hilcorp.com>; Torin Roschinger <Torin.Roschinger@hilcorp.com> Subject: RE: [EXTERNAL] RE: W-220 PTD 210-126, Sundry #324-660 Aras – Thank you for the update. Rev2 (tubing punch and cement plug at ~11,600’) is approved. Jack From: Aras Worthington <aras.worthington@hilcorp.com> Sent: Monday, December 30, 2024 11:56 AM To: Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov>; Lau, Jack J (OGC) <jack.lau@alaska.gov> Cc: Tyson Shriver <Tyson.Shriver@hilcorp.com>; Joseph Lastufka <Joseph.Lastufka@hilcorp.com>; Joseph Engel <jengel@hilcorp.com>; Abbie Barker <Abbie.Barker@hilcorp.com>; Sean McLaughlin <Sean.Mclaughlin@hilcorp.com>; Torin Roschinger <Torin.Roschinger@hilcorp.com> Subject: RE: [EXTERNAL] RE: W-220 PTD 210-126, Sundry #324-660 Mel, Jack: We have pumped the reservoir cement plug on this P&A and all went as planned except we only had minor indications of the ball seating in the cement retainer. We elected not to over-displace cement and it appeared the ball seated, but rather than keep pumping and risk pushing cement away into the perfs we elected to stop there. We successfully MITT’d the tubing to 2500 psi with AOGCC witness on 12/27/24 and tagged the TOC the same day at 11,570’ MD initially and bailed down to ~11,600’ MD recovering the foam ball and some cement. We are 26’ MD above the top of the Schrader pool at this TOC depth. A log depicting the geology at top of Schrader is included in the attached revision request (Rev2), which is to punch tubing at this depth and proceed with the P&A rather than have CT mill out CAUTION: External sender. DO NOT open links or attachments from UNKNOWN senders. cement and punch deeper. We believe the objectives of the P&A will be met with a cement plug at this depth. The previously approved revision (Rev1) is also attached for reference, along with the original approved Sundry. Thanks for your consideration and Happy New Year! Aras Worthington Operations Engineer HJMNQRU Pads Hilcorp North Slope Aras.worthington@hilcorp.com 907-564-4763 907-440-7692 mobile From: Lau, Jack J (OGC) <jack.lau@alaska.gov> Sent: Friday, December 13, 2024 9:00 AM To: Aras Worthington <aras.worthington@hilcorp.com> Cc: Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov>; Tyson Shriver <Tyson.Shriver@hilcorp.com>; Joseph Lastufka <Joseph.Lastufka@hilcorp.com>; Joseph Engel <jengel@hilcorp.com>; Abbie Barker <Abbie.Barker@hilcorp.com>; Sean McLaughlin <Sean.Mclaughlin@hilcorp.com>; Torin Roschinger <Torin.Roschinger@hilcorp.com> Subject: [EXTERNAL] RE: W-220 PTD 210-126, Sundry #324-660 Aras – Your requested revision is approved. Please inform Mel and I how this job turned out to help us better understand Schrader cementing practices. Good luck. Jack From: Aras Worthington <aras.worthington@hilcorp.com> Sent: Thursday, December 12, 2024 2:37 PM To: Lau, Jack J (OGC) <jack.lau@alaska.gov> Cc: Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov>; Tyson Shriver <Tyson.Shriver@hilcorp.com>; Joseph Lastufka <Joseph.Lastufka@hilcorp.com>; Joseph Engel <jengel@hilcorp.com>; Abbie Barker <Abbie.Barker@hilcorp.com>; Sean McLaughlin <Sean.Mclaughlin@hilcorp.com>; Torin Roschinger <Torin.Roschinger@hilcorp.com> CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. Subject: W-220 PTD 210-126, Sundry #324-660 Jack, As discussed via phone attached is a revision to the W-220 pre-rig reservoir abandonment. On the heels of having cement lock up as soon as it reached the perfs in the Schrader interval of W-01, we propose to pump minimal excess into the Schrader in W-220 to mitigate that risk and the resulting CT milling that is required to remediate. Also, we took out the volume of 7” liner below the tubing tail. We do not expect cement to fill that void. Original approved Sundry is attached for reference. Thanks for your consideration and best regards, Aras Worthington Operations Engineer HJMNQRU Pads Hilcorp North Slope Aras.worthington@hilcorp.com 907-564-4763 907-440-7692 mobile The information contained in this email message is confidential and may be legally privileged and is intended only for the use of theindividual or entity named above. If you are not an intended recipient or if you have received this message in error, you are herebynotified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently deletethis message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. The information contained in this email message is confidential and may be legally privileged and is intended only for the use of theindividual or entity named above. If you are not an intended recipient or if you have received this message in error, you are herebynotified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently deletethis message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibilityis accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. The information contained in this email message is confidential and may be legally privileged and is intended only for the use of theindividual or entity named above. If you are not an intended recipient or if you have received this message in error, you are herebynotified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently deletethis message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibilityis accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg DATE: P.I. Supervisor SUBJECT: FROM: Petroleum Inspector Section: 21 Township: 11N Range: 12E Meridian: Umiat Drilling Rig: NA Rig Elevation: NA Total Depth: 12581 ft MD Lease No.: ADL 028263 Operator Rep: Suspend: X P&A: Conductor: 20" O.D. Shoe@ 114 Feet Csg Cut@ NA Feet Surface: 13-3/8" O.D. Shoe@ 2342 Feet Csg Cut@ NA Feet Intermediate: 9-5/8" O.D. Shoe@ 6228 Feet Csg Cut@ NA Feet Production: 7" O.D. Shoe@ 12570 Feet Csg Cut@ NA Feet Liner: NA O.D. Shoe@ NA Feet Csg Cut@ NA Feet Tubing: 3-1/2" O.D. Tail@ 12358 Feet Tbg Cut@ NA Feet Type Plug Founded on Depth (Btm) Depth (Top) MW Above Verified Fullbore Other 12315 ft 11600 ft 6.9ppg N/A Initial 15 min 30 min 45 min Result Tubing 2750 2566 2525 IA 0 0 0 OA 157 156 157 Initial 15 min 30 min 45 min Result Tubing IA OA Remarks: Attachments: Pre-rig Schrader reservoir abandonment plug for redrill. W-220 changes into Suspended status after proposed work. Cement retainer set at 11925 ft MD; cement pumped through retainer set on plug in X-nipple at 12315 ft MD. Top depth of plug was not witnessed. Another inspector was involved several days prior to this test when slickline operations tagged high (11570 ft MD) with foam ball in bailer. Operations bailed to 11600 ft MD (not witnessed). AOGCC approved plug at that point. The MIT-T was the only work witnessed by myself on this job. January 2, 2025 Austin McLeod Well Bore Plug & Abandonment Prudhoe Bay Unit W-220 Hilcorp North Slope LLC PTD 2101260; Sundry 324-660 none Test Data: MIT-T P Casing Removal: Mark Spiller Casing/Tubing Data (depths are MD): Plugging Data (depths are MD): rev. 3-24-2022 2025-0102_Plug_Verification_PBU_W-220_am 9 9 9 99 99 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 5HIHUWR3OXJ9HULILFDWLRQ5HSRUW66XOOLYDQ IRUSULRUZRUNUHIHUHQFHG-5HJJ pp g pg pp pp pg Another inspector was involved several days prior to this test when slickline operations tagged high (11570 ft MD)pyp with foam ball in bailer. Operations bailed to 11600 ft MD (not witnessed). 5HIHUWR3OXJ9HULILFDWLRQ5HSRUW66XOOLYDQJ IRUSULRUZRUNUHIHUHQFHG-5HJJ James B. Regg Digitally signed by James B. Regg Date: 2025.01.08 14:27:32 -09'00' MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg DATE: P.I. Supervisor SUBJECT: FROM: Petroleum Inspector Section: 21 Township: 11N Range: 12E Meridian: Umiat Drilling Rig: N/A Rig Elevation: N/A Total Depth: 12581 ft MD Lease No.: ADL028263 Operator Rep: Suspend: P&A: X Conductor: 20" O.D. Shoe@ 114 Feet Csg Cut@ Feet Surface: 13-3/8" O.D. Shoe@ 2342 Feet Csg Cut@ Feet Intermediate: 9 5/8" O.D. Shoe@ 6228 Feet Csg Cut@ Feet Production: 7" O.D. Shoe@ 12570 Feet Csg Cut@ Feet Liner: O.D. Shoe@ Feet Csg Cut@ Feet Tubing: 3-1/2" O.D. Tail@ 12358 Feet Tbg Cut@ Feet Type Plug Founded on Depth (Btm) Depth (Top) MW Above Verified Fullbore Retainer 11925 ft 11570 ft Diesel Wireline tag Initial 15 min 30 min 45 min Result Tubing IA OA Initial 15 min 30 min 45 min Result Tubing IA OA Remarks: Attachments: Plugback for redrill. Travel out to PBU W-220 to witness tag and MIT of the reservoir abandonment plug. Initial tag was 11570 ft MD and the bailer returned a sample of poor cmt mixed with foam. A second tag run was made and tagged at the same depth and returned a bailer full of foam ball. The tag was 250 ft above planned tubing punch depth of 11,820 ft. Operator waiting on plan forward. I did not witness an MIT as they were not to final depth. December 27, 2024 Sully Sullivan Well Bore Plug & Abandonment PBU W-220 Hilcorp North Slope LLC PTD 2101260; Sundry 324-660 Photo Test Data: Casing Removal: Thomas Doherty Casing/Tubing Data (depths are MD): Plugging Data (depths are MD): rev. 3-24-2022 2024-1227_Plug_Verification_PBU_W-220_ss – PBU W-220 (PTD 2101260) Photo by AOGCC Inspector S. Sullivan 12/27/2024 Bailer Sample from plug tag 11951' / 5194', 12088' / 5276', 12225' / 5357' Digitally signed by Sean McLaughlin (4311) DN: cn=Sean McLaughlin (4311) Date: 2024.11.20 20:39:44 - 09'00' Sean McLaughlin (4311) By Grace Christianson at 7:50 am, Nov 21, 2024 324-660 JJL 11/22/24 Witnessed MITT to 2500 psi and Tag TOC for reservoir cement plug. Witnessed CMIT-TxIA to 2500 psi and Tag TOPC on intermediate cement plug. DSR-11/21/24 X 10-407 A.Dewhurst 22NOV24 X *&: Jessie L. Chmielowski Digitally signed by Jessie L. Chmielowski Date: 2024.11.25 09:03:52 -09'00'11/25/24 RBDMS JSB 112524 Reservoir Abandonment & Pre-Rig PBU W-220 PTD: 210-126 Well Name:PBU W-220 API Number:50-029-23422 Current Status:Operable Schrader WAG Injector Rig:SL, EL, FB Estimated Start Date:12/04/2024 Estimated Duration:Two weeks Reg.Approval Req’std?10-403 Date Reg. Approval Rec’vd: Regulatory Contact:Joe Lastufka First Call Engineer:Aras Worthington Contact:907-440-7692 Current Bottom Hole Pressure (Schrader):2,556 psi @ 5,087’ TVD (SBHPS 11/19/2016) Max. Anticipated Surface Pressure:2,047 psi (Based on 0.1 psi/ft gas gradient) Last SI WHP:150 psi (6/19/2024) Min ID: 2.75” @ 12,345’ MD (XN Nipple) Max Angle:75 Deg @ 3,477’ MD Brief Well Summary: Schrader Injector drilled and completed in 2011. Objective: Abandon the Schrader reservoir with cement in preparation for a rotary sidetrack to the Schrader. Annular Cement: 7” Liner: Cemented with lead of 148 bbls 11.0 ppg Lightcrete and tail of 43 bbls 15.8 ppg Class G. No losses were reported. Plug was bumped. TOC logged with a USIT on 12/27/2010 with a field pick TOC @ 6,512’ MD although the drilling records indicate a field pick TOC of 6,634’ MD. Using a 30% washout calculation would put the TOC at ~6,630’ MD. 9-5/8” Casing: Cemented with lead of 65 bbls 11.0 ppg Lightcrete and tail of 282 bbls 15.8 ppg Class G. No losses were reported and 50 bbls of cement returns strung out at surface when circulating before setting the LTP. Top of Schrader is 11,626’ MD. Reservoir Abandonment & Pre-Rig PBU W-220 PTD: 210-126 WBL Steps: 1 S PULL ALL WFRVS AND DUMMY WFRVS FROM WFRMS, DRIFT FOR CEMENT RETAINER 2FA/SL; PUMP DOWN TOOLS 3EPTUBING PUNCH (IF SL UNSUCCESSFUL IN PULLING VALVESJ) 4 E/S SET CEMENT RETAINER 5 F RESERVOIR CEMENT ABANDONMENT PLUG OVER SCHRADER 6 F MITT (AOGCC WITNESSED) 7 S TAG TOC (AOGCC WITNESSED) 8 E PUNCH TUBING, SET CEMENT RETAINER 9 F INTERMEDIATE CEMENT ABANDONMENT PLUG ABOVE SCHRADER 10 F CMIT-TXIA (AOGCC WTNESSED) 11 S TAG TOC (AOGCC WITNESSED) 12 E JET CUT TUBING 13 F CIRC OUT TXIA TO BRINE Procedural steps Slickline/Fullbore 1. Pull all Water-Flood-Regulating Valves (WFRVs) and dummy WFRVs in the Shrader intervals (leave stations #1-5 all open - pump down tools as needed – deviation is 75 deg; max tubing pressure 2500 psi). a. Alternatively, if SL cannot pull valves due to high deviation (75 deg sail angle in this well) i. RU E-line with tractor and tubing punch with 2’ guns above and below each perforated interval at the following depths: ¾12,315’ MD & 12,250’ MD ¾12,200’ MD & 12,100’ MD ¾12,080’ MD & 11,960’ MD E-Line or Slickline 2. Set 3-1/2” Magnum ball-drop cement retainer in the middle of the first full joint of tubing above the shallowest production packer @ ~11,925’ MD - reference attached tubing tally of 11/24/2010. Note: Retainer modified by Northern Solutions; contact Carl Diller @ (907) 258-6679. Fullbore 3. Pump Schrader reservoir cement plug as follows down the tubing. Max tubing pressure 3000 psi. ¾145 bbls FW, SW, or 1% KCL (1.2 x Wellbore volume). ¾30 bbls 14.0 - 15.8 ppg Class G cement (~50% excess of volume to fill liner, annuli, and tubing below the retainer) ¾2 bbls FW spacer ¾Landing-Ball followed by two Foam-Balls ¾102 bbls heated 70 deg-F diesel - Slow Pump rate to minimum for last 5 bbls to seat Ball. Bump Ball with ~500 psi of excess pressure. Reservoir Abandonment & Pre-Rig PBU W-220 PTD: 210-126 Volumes: ¾3-1/2” tubing: 12,358’ x 0.0087 bpf = 108 bbls ¾3-1/2” tubing x 7” annulus: (12,358’ – 11,951’) x 0.0264 bpf = 11 bbls Total volume of wellbore: 119 bbls ¾3-1/2” tubing below retainer: (12,358’ - 11,925’) x 0.0087 bpf = 4 bbls ¾3-1/2” tubing x 7” annulus: (12,358’ – 11,951’) x 0.0264 bpf = 11 bbls ¾7” liner below tubing tail: (12,493’ – 12,358’) x 0.0383 bpf = 5 bbls Total annular volume, & tbg volume below retainer: 20 bbls Fullbore 4. MITT to 2500 psi target pressure, 2750 psi max pressure (AOGCC witnessed). Slickline 5. Tag TOC (AOGCC witnessed). E-Line 6. Punch tubing using a five-foot gun located across a collar ~11,820’ MD above the tag of TOC - reference attached tubing tally of 11/24/2010. 7. Set Magnum ball-drop cement retainer in the middle of a full joint of tubing @ ~5,200’ MD. Note: Retainer modified by Northern Solutions; contact Carl Diller @ (907) 258-6679. Fullbore 8. Cement tubing and IA to ~5,200’ MD as follows pumping under 3,000 psi max tubing pressure: ¾10 bbls MEOH (to ensure 1:1 returns from IA before pumping cement) ¾123 bbls diesel - note that the 102 bbls of diesel pumped to displace the previous cement job will be circulated into the IA once pumping commences so an additional 123 bbls will be needed to FP the IA to 2200’ MD – total volume of 225 bbls to do so) ¾2 bbls FW ¾233 bbls 14.0 - 15.8 ppg Class G Cement – pump cement at maximum rate ¾2 bbls FW ¾Landing-Ball followed by two Foam-Balls ¾43 bbls diesel to displace TOC in tubing to 5,200’ MD. Slow Pump rate to minimum for last 5 bbls to seat Ball. Bump Ball with ~500 psi of excess pressure. Volumes: ¾3-1/2” tubing to retainer: 5,200’ x 0.0087 bpf = 45 bbls ¾3-1/2” tubing x 7” annulus above expected TOC: 5,200’ x 0.0264 bpf = 137 bbls ¾3-1/2” tubing: (11,820’ – 5,200’) x 0.0087 bpf = 58 bbls ¾3-1/2” tubing x 7” annulus: (11,820’ – 5,200’) x 0.0264 bpf = 175 bbls Total volume of cement for TxIA cement plug: 233 bbls Reservoir Abandonment & Pre-Rig PBU W-220 PTD: 210-126 Fullbore 9. CMIT-TXIA to 2500 psi target pressure, 2750 psi max pressure (AOGCC witnessed). Slickline 10. Drift and tag TOC (AOGCC WITNESSED). 11. Drift for Jet Cutter to ~2500’ MD. E-Line 12. Jet cut tubing @ ~2500’ MD. Fullbore 13. Circ TxIA to 9.6 ppg brine with 90 bbls. Diesel/brine will swap out after the circ-out leaving 9.6 ppg brine below the jet cut in the tubing and IA. Final circ-out to brine will occur just before the rig moves over the well. Volumes: ¾3-1/2” tubing to retainer: 5,200’ x 0.0087 bpf = 45 bbls ¾3-1/2” tubing x 7” annulus above expected TOC: 5,200’ x 0.0264 bpf = 137 bbls ¾3-1/2” tubing to jet cut depth: 2,500’ x 0.0087 bpf = 22 bbls ¾3-1/2” tubing x 7” annulus to jet cut depth: 2,500’ x 0.0264 bpf = 66 bbls Attachments: 1. Current Wellbore Schematic 2. Proposed Wellbore Schematic 3. Tbg Tally Reservoir Abandonment & Pre-Rig PBU W-220 PTD: 210-126 Current Wellbore Schematic Reservoir Abandonment & Pre-Rig PBU W-220 PTD: 210-126 Proposed Wellbore Schematic Schrader Reservoir Cement Plug TOC @ ~11,925’ MD Cement Retainers @ ~5,200’ MD & ~11,925’ MD Intermediate TxIA Cement Plug TOC @ ~5,200’ MD Tubing punch @ 11,820’ MD Annular TOC via USIT @ 6,512’ MD Reservoir Abandonment & Pre-Rig PBU W-220 PTD: 210-126 Sundry Application Well Name______________________________ (PTD _________; Sundry _________) Plug for Re-drill Well Workflow This process is used to identify wells that are suspended for a very short time prior to being re-drilled. Those wells that are not re-drilled immediately are identified every 6 months and assigned a current status of "Suspended." Step Task Responsible 1 The initial reviewer will check to ensure that the "Plug for Redrill" box in the upper left corner of Form 10-403 is checked. If the "Abandon" or "Suspend" boxes are also checked, cross out that erroneous entry and initial it on the Form 10-403. Geologist 2 If the “Abandon” box is checked in Box 15 (Well Status after proposed work) the initial reviewer will cross out that checkbox and instead, check the "Suspended" box and initial those changes. Geologist The drilling engineer will serve as quality control for steps 1 and 2. Petroleum Engineer (QC) 3 When the RA2 receives a Form 10-403 with a check in the "Plug for Redrill" box, they will enter the Typ_Work code "IPBRD" into the History tab for the well in RBDMS. This code automatically generates a comment in the well history that states "Intent: Plug for Redrill." Research Analyst 2 4 When the RA2 receives Form 10-407, they will check the History tab in RBDMS for the IPBRD code. If IPBRD is present and there is no evidence that a subsequent re-drill has been completed, the RA2 will assign a status of SUSPENDED to the well bore in RBDMS. The RA2 will update the status on the 10-407 form to SUSPENDED, and date and initial this change. If the RA2 does not see the "Intent: Plug for Redrill" comment or code, they will enter the status listed on the Form 10-407 into RBDMS. Research Analyst 2 5 When the Form 10-407 for the redrill is received, the RA2 will change the original well's status from SUSPENDED to ABANDONED. Research Analyst 2 6 The first week of every January and July, the RA2 and a Geologist or Reservoir Engineer will check the "Well by Type Work Outstanding" user query in RBDMS to ensure that all Plug for Redrill sundried wells have been updated to reflect current status. At this same time, they will also review the list of suspended wells for accuracy and assign expiration dates as needed. Research Analyst 2 Geologist or Reservoir Engineer PBU W-220 A.Dewhurst 22NOV24 324-660210-126 A.Dewhurst 22NOV24 New Plugback Esets 6/26/2024 Well Name API Number PTD Number ESet Number Date 2L-320 PB1 50-103-20627-70-00 210-166 T39025 3-8-2011 2L-320 PB2 50-103-20627-71-00 210-166 T39026 3-8-2011 CD4-23 PB1 50-103-20621-70-00 210-067 T39027 8-30-2010 CD4-23 PB2 50-103-20621-71-00 210-067 T39028 8-30-2010 ODSK-13 PB1 50-703-20607-70-00 209-146 T39029 11-18-2011 ODSK-13 PB2 50-703-20607-71-00 209-146 T39030 11-18-2011 ODSK-14 PB1 50-703-20610-70-00 209-155 T39031 3-24-2010 ODSK-14 PB2 50-703-20610-71-00 209-155 T39032 3-24-2010 OP05-06 PB1 50-029-23427-70-00 210-080 T39033 10-28-2010 OP05-06 PB2 50-029-23427-71-00 210-080 T39034 10-28-2010 P2-22A PB1 50-029-22850-71-00 209-161 T39035 6-4-2010 P2-22A PB2 50-029-22850-72-00 209-161 T39036 6-4-2010 S-129 PB1 50-029-23433-70-00 210-132 T39037 5-12-2011 S-129 PB2 50-029-23433-71-00 210-132 T39038 5-12-2011 W-219 PB1 50-029-23429-70-00 210-105 T39039 1-27-2011 W-219 PB2 50-029-23429-71-00 210-105 T39040 1-27-2011 W-220 PB1 50-029-23432-70-00 210-126 T39041 3-27-2013 W-220 PB2 50-029-23432-71-00 210-126 T39042 3-27-2013 W-WW 220 PB1 50-029-23432-70-00 210-126 T39041 3-27-2013 W-WW 220 PB2 50-029-23432-71-00 210-126 T39042 3-27-2013 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Friday, January 12, 2024 SUBJECT:Mechanical Integrity Tests TO: FROM:Brian Bixby P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC W-220 PRUDHOE BAY UN POL W-220 Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 01/12/2024 W-220 50-029-23432-00-00 210-126-0 W SPT 5194 2101260 1500 1170 1167 1169 1182 199 283 258 241 4YRTST P Brian Bixby 11/19/2023 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 UN POL W-220 Inspection Date: Tubing OA Packer Depth 549 2012 1955 1935IA 45 Min 60 Min Rel Insp Num: Insp Num:mitBDB231119154112 BBL Pumped:2.3 BBL Returned:2.3 Friday, January 12, 2024 Page 1 of 1           7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU 02-30B Attempt P&A , Milled Plug Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 200-126 50-029-22202-02-00 12362 Conductor Surface Intermediate Liner Liner 8910 80 2521 8037 1721 2548 6292 20" 10-3/4" 7-5/8" 5- 1/ 2" 3- 1/ 2" 5310 28 - 108 28- 2549 26 - 8063 7897- 9618 9435- 11983 29 - 109 28- 2354 26 - 6768 6624- 8301 8119- 8905 6518 , 11416 470 2090 4790 6280 10530 6292 1490 3580 6890 7740 10160 10350 - 11900 4-1/2" 12.6# x 3-1/2" 9. 3# 13-CR x L-80 25 - 6264 , 6777 - 9442 8899 - 8902 Structural 3-1/2" Baker SABL-3 , 9387 , 8071 No SSSV 9387 8071 Bo York Operations Manager Aras Worthington Aras.Worthington@hilcorp.com 907-564-4763 PRUDHOE BAY / PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028308 25 - 5288 , 5689 - 8126 323-069 13b. Pools active after work: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 2:41 pm, Nov 20, 2023 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2023.11.20 14:06:59 - 09'00' Bo York (1248) RBDMS JSB 112823 WCB 4-29-2024 DSR-11/20/23 ACTIVITYDATE SUMMARY 10/16/2023 T/I/O=BPV/0/0. RU CIW Lubricator and "H" tooling to P-sub. Pulled 4" "H" BPV @ 135" with 2' of ext. RD lubricator. ***Job Complete*** Final WHP's 250/900/300. 10/16/2023 CT 9 1.75" Coil Tubing - Job Scope = Mill EZSV, Cement Plug MIRU. MU YJ upper BHA, go to well to test lubricator. Attempt to RIH a ways and set down 12', right at the BPV profile. Do some pumping down the tubing and IA to verify which way pressures are reacting. Come to the conclusion a BPV set in 2007 was still in the hole. Call out tree crew. MIRU Crane & Lub. Pulled BPV (good shape). RIH w/ 2.47" DJN assembly to 2300'. POOH. MU YJ UR (6.12" fully extended) 2-1/8" milling assembly w/ 2.70" string mill and Pilot Mill. RIH. ***Continue on from WSR 10/16/23*** 10/17/2023 CT 9 1.75" Coil Tubing - Job Scope = Mill EZSV, Cement Plug RIH w/ YJ UR (6.12" fully extended) 2-1/8" milling assembly w/ 2.70" string mill and Pilot Mill. Tag 7-5/8" EZSV Plug @ 6282' Mech / 6291.1' CTM. PUH 6283'. Circ out Diesel at min rate 0.3 bpm w/ slick 1% kcl. Milling on EZSV plug. Min Motor work w/ Wgt down. POOH inspect tools. No apparent issues with the tools. Remove the centralizer and string mil and go with the same 2.7" YJ smurf mill. RIH. Tag at 6292 ctmd. Perfom 2500 psi pressure test on the IA/tubing against the EZSV. Looks good. Mill on EZSV, made ~1-1,2'. Started loosing returns to formation. Attempted a dry drift, no go. Made decision to POOH. Freeze protect coil and the well 20 bbls. RDMO. ***Job put on hold to go finish a priority job*** 10/19/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A MIRU CTU. ***Continued on 10/20/23*** 10/20/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A Make up YJ milling BHA with 2.70" pilot mill and RIH. Tag EZSV Plug. Start milling. stalled 13 times in 1-1/2 hour pumping WHP 770 psi w/ closed choke. Open Choke take returns - start making small footage. made down to 2.5) after 19 stalls 4-1/2 hours. PUH and bit stuck. set Jar 48K and free. RIH and stalling 2.3' higher. Tried 2 hr 15 mins and just keep stalling. POOH check tools. BD 2.7" Pilot Mill - Wear on top and sides (lost couple buttons on side). MU redressed 2.7" Pilot Mill. RIH. Tag plug. Stalled 3 times. Milling on EZSV plug. ***Continue on WSR 10/21/23*** 10/21/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A Mill pilot hole through EZSV plug at 6292' . Mill down to 6304' ctm. Dry drift through EZSV. Pooh. Perform Weekly BOP test. MU Slb Cmt slim 1.75" BDJSN Assembly. RIH. Tag @ 6527.9' CTM / 6536' Mech. Tried to jet thru, no go. POOH. Make up YJ milling BHA w/ 2.70" pilot mill. Tag at 6527' ctm. Mill easy down to 6540' ctm with minimal motorwork in the 7-5/8" casing. Dry tag at 6527'. Appears to be fill sloughing in. Pooh. ***Continued on 10/22/23*** Daily Report of Well Operations PBU 02-30B j Mill pilot hole through EZSV plug at 6292' . Mill down to 6304' ctm. Dry drift through EZSV. Pooh. g MIRU Crane & Lub. Pulled BPV (good shape). RIH(g ) w/ 2.47" DJN assembly to 2300'. POOH. MU YJ UR (6.12" fully extended) 2-1/8"y( milling assembly w/ 2.70" string mill and Pilot Mill. RIH. yy Tag @ 6527.9' CTM / 6536' Mech. Tried to jet thru, no go. POOH. Make up YJg@ j g milling BHA w/ 2.70" pilot mill. Tag at 6527' ctm. Mill easy down to 6540' ctm withggy minimal motorwork in the 7-5/8" casing. Dry tag at 6527'. Appears to be fill sloughing in. Pooh. RIH. Tag at 6292gg g ctmd. Perfom 2500 psi pressure test on the IA/tubing against the EZSV. Looks good.gg g Mill on EZSV, made ~1-1,2'. Started loosing returns to formation. Attempted a dry drift, no go. Made decision to POOH. j Make up YJ milling BHA with 2.70" pilot mill and RIH. Tag EZSV Plug. Start milling.gggg stalled 13 times in 1-1/2 hour pumping WHP 770 psi w/ closed choke. Open Chokeg take returns - start making small footage. made down to 2.5) after 19 stalls 4-1/2gg ) hours. PUH and bit stuck. set Jar 48K and free. RIH and stalling 2.3' higher. Tried 2 hr 15 mins and just keep stalling. POOH Daily Report of Well Operations PBU 02-30B 10/22/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A BD YJ milling BHA. Make up 1.75" Slim DJN. Tag 6527' CTM. Jet and not make any chages in wgt or depth. POOH. BD Slb 1.75" Slim DJN BHA Assembly. MU YJ 2.20" Parabolic milling assembly. RIH. Tag 6524.5 CTM/ 6528' Mech. Try rotate thru w/ Diesel. Tried 3 times tagging and stalls). Convert CT to slk 1% kcl. RIH past tag depth to 6537.4' CTM start losing wgt. PUH not moving cycle CT. Hot 37 Jar licks, no movement. Drop 5/8" disconnect ball and disconnect. Pull max 50k on 0.156" wall CT and had no movement. Gather tools for chem cut. ***Continued on 10/23/23*** 10/23/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A Pipe stuck at 6530' ctm. Work pipe surging coil. MIRU LRS Hot Oiler. Circulate Hot water down coil, swap to cold diesel continue to work pipe. ***Continue on 10/24/23*** 10/23/2023 Assist CTU ( P & A ) Pump 2 bbls 60/40 spear down coil. Pump 663 bbls 160* 1% Slick KCL & 3 bbls 60/40 down coil. *** Job continued to 10-24-2023 *** 10/24/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A Attempt to free pipe after warming/cooling effect three times up/down. RU Kill line to Kill Port BOPs to Choke. RU Scaffolding on top Well House. Monitor Well. ***Continue on WSR 10/25/23*** 10/24/2023 *** Job continued from 10-23-2023 *** Assist CTU. 10/25/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A Monitor well. Pump KWF. Finish hot tap CT. Cut pipe and MU ctc and TIW valve. RU E-line and RIH w/ jet cutter. Cut CT 10' above CTC. Cut Depth 6518' ELM. ***Continue WSR to 10/26/23*** 10/25/2023 ***COIL OPPERATION IN PROGRESS ON ARRIVAL*** PT PCE 0 - 500lb RIH with 1" Titan Cable Head, (4X)(5' X 1" Weight Bar), Tubing Jet Cutter. Standby for coil Job continued on 10-26-23 10/25/2023 Assist Coil ( Kill Well ) Pump 2 bbls 60/40 to fluid pack kelley hose to coil. Pump 271 bbls 9.8# NaCl down IA as CTU pumped down backside of coil to kill well. Pumped 2 bbls 60/40 to freeze protect surface equip. 10/26/2023 Job Continued from 10-25-23 Stanby for coil Rig Down/Move off ***WELL TURNED OVER TO COIL OPERATION ON DEPARTURE*** y RIH. Tag 6524.5 CTM/ 6528' Mech. Try rotate thrugy g y w/ Diesel. Tried 3 times tagging and stalls). Convert CT to slk 1% kcl. RIH past taggg g ) g depth to 6537.4' CTM start losing wgt. PUH not moving cycle CT. Hot 37 Jar licks,gg gy no movement. Drop 5/8" disconnect ball and disconnect. Pull max 50k on 0.156" wall CT and had no movement. j Pump KWF. Finish hot tap CT. Cut pipe and MU ctc and TIW valve. RU E-line and RIH w/ jet cutter. Cut CT 10' above CTC. Cut Depth 6518' ELM. j Pipe stuck at 6530' ctm. Work pipe surging coil. MIRU LRS Hot Oiler. Circulate Hotgg water down coil, swap to cold diesel continue to work pipe Daily Report of Well Operations PBU 02-30B 10/26/2023 CTU #9 1.75" CT Job Objective: Mill EZSV, P&A MU Spoolable Coil Connector. RD Scaffolding. Freeze protect with diesel. Strip injector down over CTC and coil. Recover Coil at surface, Blow Down Reel. RDMOL ***Job Complete*** *********FISH LIH: 10' of 1.75" 0.156" WT CT stub, 2.25" x 0.75' len connector, 2.14" x 5.97' len Logan BiDi Jar, 2.13" x 1.58" len Disconnect (5/8" steel ball is on seat), 2.13" x 10.47' len Mud Motor, 2.13" x 0.50' len Crossover, 2.20" x 0.60' len Bullnose Mill, OAL: ~29.87'. On 10/22/23 a 5/8" ball was pumped and disconnected. Fish will be retrieved in 2 sections. ****** 10/26/2023 ***job continued from 10-25-23*** Assist Coil RDMO 11/1/2023 OE confirmed no other work will be performed under Sundry 323-069. Will need a new Sundry for RWO P&A in 2024. OE confirmed no other work will be performed under Sundry 323-069. Will need a new Sundry for RW O P&A in 2024 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg^�/� DATE: Tuesday, December 3, 2019 P.I. Supervisor ' eq 443061 SUBJECT: Mechanical Integrity Tests / BP Exploration (Alaska) Inc. W-220 FROM: Austin McLeod PRUDHOE BAY UN POL W-220 Petroleum Inspector Type Inj See: Inspector Tubing Reviewed By: 1748 - P.I. Supry '. 2(y NON -CONFIDENTIAL Comm Well Name PRUDHOE BAY UN POL W-220 API Well Number 50-029-23432-00-00 Inspector Name: Austin McLeod Permit Number: 210-126-0 Inspection Date: I1/30/2019 Insp Num: mitSAM191130182155 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well W-220 Type Inj W' TVD 5194 Tubing 1748 1748 - 1735 1741 - PTD 2101260 IType Test SPT ITest psi 1500 IA 463 2502 - 2469 2460 BBL Pumped: 3 - BBL Returned: 2.3 OA 160 - 285 - 266 250 ' Interval I 4YRTST P/F P Notes: MITAA Mj''T'r-tu- �'2uI WQ.di Ct -Z i :pude d� tl�� II Tuesday, December 3, 2019 Page 1 of I Wallace, Chris D (CED) From: AK, GWO Well Integrity Engineer <AKGWOWellSiteEnginee@bp.com> Sent: Thursday, November 21, 2019 8:13 AM To: AK, GWO Well Integrity Engineer; Wallace, Chris D (CED); AK, OPS EOC Specialists; Ak, OPS GC2 Facility PTL; Ak, OPS GC2 Field PTL; AK, OPS GC2 OSM; AK, OPS GC2 Wellpad Lead; AK, OPS PCC Ops Lead; AK, OPS Prod Controllers; AK, OPS Well Pad DFT N2; AK, OPS Well Pad HUQ; AK, OPS Well Pad LV; AK, OPS Well Pad MN; AK, OPS Well Pad RJ; AK, OPS WELL PAD S; AK, OPS Well Pad SW, AK, OPS WELL PAD W; AK, OPS Well Pad Z; Ak, Ops West Area TL; AK, RES GPB East Wells Opt Engr; AK, RES GPB West Wells Opt Engr, AKOpsProdEOCTL; Nottingham, Derek; Youngmun, Alex Cc: Regg, James B (CED); AK, GWO Completions Well Integrity; AK, GWO DHD Well Integrity; AK, GWO Projects Well Integrity; AK, GWO SUPT Well Integrity; AK, OPS FF Well Ops Comp Rep; AKIMS App User; Cismoski, Doug A, Daniel, Ryan; Dempsey, David G; Hibbert, Michael; Janowski, Carrie; Montgomery, Travis J; Obrigewitch, Beau; Smith, Travis T (CONOCOPHILLIPS); Sternicki, Oliver R; Tempel, Joshua; Worthington, Aras J; AK, GWO Well Integrity Well Information Subject: OPERABLE: Injector W-220 (PTD #2101260) Ready to be brought online for a 4 -year AOGCC MIT -IA All, Injector W-220 (PTD #2101260) was made not operable on 10/12/2019 for lapsing on its 4 year AOGCC MIT -IA. The well is now ready to be brought online and is hereby reclassified as Operable. An AOGCC MIT -IA will be conducted once the well is on stable injection. Please respond with any questions, Joshua Stephens Well Integrity Engineer Office: 907-659-8110 From: AK, GWO Wellrity Engineer <AKGWOWeliSiteEnginee@bp.com> Sent: Sunday, October 13, 2 88h AM To: 'chris.waIlace @alaska.gov' <chr allace@alaska.gov>; AK, OPS EOC Specialists <AKOPSEOCSpecialists@bp.com>; Ak, OPS GC2 Facility PTL <AKOPSGC2Facili TL@bp.com>; Ak, OPS GC2 Field PTL <AkOPSGC2Field PTL@bp.com>; AK, OPS GC2 OSM <AKOPSGC20SM@bp.com>; AK, GC2 Wellpad Lead <AKOPSGC2WeIIpadLead@bp.com>; AK, OPS PCC Ops Lead <AKOPSPCCOpsLead@bp.com>; AK, OPS Pro ntrollers <akopsprodcontrollersl@bp.com>; AK, OPS Well Pad DFT N2 <AKOPSWellPadDFTN2@bp.com>; AK, OPS Wel HUQ <AKOPSWellPadHUQ@bp.com>; AK, OPS Well Pad LV <AKOPSWellPad LV@bp.com>; AK, OPS Well Pad MN <AKO ellPadMN@bp.com>; AK, OPS Well Pad RJ <AKOPSWe11PadRJ@bp.com>; AK, OPS WELL PAD S <AKOPSWELLPADS@ om>; AK, OPS Well Pad SW <AKOPSWeliPadSW@bp.com>; AK, OPS WELL PAD W <AKOPSWELLPADW@bp. >; AK, OPS Well Pad Z <AKOPSWeliPadZ@bp.com>; Ak, Ops West Area TL <AkOpsWestAreaTL@bp.com>; , ES GPB East Wells Opt Engr <AKRESGPBEastWellsOptEngr@bp.com>; AK, RES GPB West Wells Opt Engr <AKRESGPBW ellsOpt2@bp.com>; AKOpsProdEOCTL <AKOPSPCCEOCTL@bp.com>; Nottingham, Derek <Derek.Nottingham@bp.co • Youngmun, Alex Wallace, Chris D (CED) From: AK, GWO Well Integrity Engineer <AKGWOWellSiteEnginee@bp.com> Sent: Sunday, October 13, 2019 8:04 AM To: Wallace, Chris D (CED); AK, OPS EOC Specialists; Ak, OPS GC2 Facility PTL; Ak, OPS GC2 Field PTL; AK, OPS GC2 OSM; AK, OPS GC2 Wellpad Lead; AK, OPS PCC Ops Lead; AK, OPS Prod Controllers; AK, OPS Well Pad DFT N2; AK, OPS Well Pad HUQ AK, OPS Well Pad LV; AK, OPS Well Pad MN; AK, OPS Well Pad RJ; AK, OPS WELL PAD S; AK, OPS Well Pad SW, AK, OPS WELL PAD W, AK, OPS Well Pad Z; Ak, Ops West Area TL; AK, RES GPB East Wells Opt Engr; AK, RES GPB West Wells Opt Engr; AKOpsProdEOCTL; Nottingham, Derek; Youngmun, Alex Cc: Regg, James B (CED); AK, GWO Completions Well Integrity; AK, GWO DHD Well Integrity; AK, GWO Projects Well Integrity; AK, GWO SUPT Well Integrity; AK, GWO Well Integrity Well Information; AK, OPS FF Well Ops Comp Rep; AKIMS App User; Cismoski, Doug A, Daniel, Ryan; Dempsey, David G; Hibbert, Michael; Janowski, Carrie; Montgomery, Travis J; Obrigewitch, Beau; Smith, Travis T (CONOCOPHILLIPS); Sternicki, Oliver R; Tempel, Joshua; Worthington, Aras J Subject: NOT OPERABLE: Injector W-220 (PTD #2101260) due for a 4 -year AOGCC MIT -IA 0 Injector W-220 (PTD # 2101260) was due for its AOGCC 4 -year MIT -IA in August. Due to the GC2 TAR, the well has not been online and was being tracked with the monthly compliance report. It has now been determined the well will not be put on injection in the near future. The well is now classified as NOT OPERABLE for tracking purposes. Please respond with any questions. Andrew Ogg Well Integrity Engineer BP Global Wells Organization -Alaska Office: 907-659-8110 Wallace, Chris D (CED) From: AK, GWO Well Integrity Engineer <AKGWOWeliSiteEnginee@bp.com> Sent: Sunday, September 1, 2019 8:08 AM To: Wallace, Chris D (CED) Cc: AK, GWO Projects Well Integrity; AK, GWO Well Integrity Well Information Subject: GC2 Injectors overdue for AOGCC MIT -IA Mr. Wallace, —V ") �210Vp Injectors W-207 (PTD # 2030490), W-221 (PTD #2110290), W-220 (PTD "'taw), W-223 (PTD #211060), R-06 (PTD #1981270), and W-219 (PTD #2101050) were due for 4 year AOGCC MIT-IAs at the end of August 2019. Due to the GC2 TAR the wells have been shut in and were not tested before the end of the month. GC2 is expected to be back up to full rate by the end of next week so BP is requesting to leave the above mentioned wells in Operable status and track them on the monthly compliance report until they are brought back online and pressure tested. Please advise if this is not acceptable, Joshua Stephens Well Integrity Engineer Office: 907-659-8110 • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim jZegg i� DATE: Wednesday,August 12,2015 P.I.Supervisor l el? 15I ii I IS- SUBJECT: Mechanical Integrity Tests BP EXPLORATION(ALASKA)INC W-220 FROM: Bob Noble PRUDHOE BAY UN POL W-220 Petroleum Inspector Src: Inspector Reviewed By: P.I.Supry JL -.— NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UN POL W-220 API Well Number 50-029-23432-00-00 Inspector Name: Bob Noble Permit Number: 210-126-0 Inspection Date: 8/10/2015 Insp Num: mitRCN150811120545 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min w-zzo well Type Inj w• TVD 5194 Tubing 1186 1186 1185 1185 PTD, 2101260 - Type Test SPT Test psi 1500 • IA 11 412 2500 2465 - 2456 ' Inter — Val[4YRTST P/F ! P OA166 306' 1 290 • 274 - 1 I Notes: SCONED ,i , ,r , Wednesday,August 12,2015 Page 1 of 1 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. I Q - _t a c Well History File Identifier Organizing (done) Two-sided II I I II 1 11111 ❑ Rescan Needed 11111111111V 111 RESCAN DIGITAL DATA OVERSIZED (Scannable) 9/Color Items: ❑ Diskettes, No. ❑ Maps: t"Greyscale Items: ❑ Other, No/Type: ❑ Other Items Scannable by V a Large Scanner 1 ❑ Poor Quality Originals: OVERSIZED (Non-Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Maria Date: 'a 1 Li /s/ 1 Project Proofing 11111111111111111 BY: 111=k Date: g.,1 I u /s/ Scanning Preparation x 30 = 150 + /0 = TOTAL PAGES 1 6so (Count does not include cover sheet) i ji • BY: Maria Date: /s/ta. Production Scanning 113111110 11111 Stage 1 Page Count from Scanned File: I (0 1 (Count does include cove sheet) Page Count Matches Number in Scanning Preparation: YES NO BY: Date: a hdl„ 'Li. /s/ r Stage 1 If NO in stage 1, page(s)discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. III 11 E 1111111 II III ReScanned 1 1111111111 11111 BY: Maria Date: /s/ Comments about this file: Quality Checked III 01111111 111111 12/22/2011 Well History File Cover Page.doc o 0 0 a ° I- F a c m cc El_ a Z ces r3 Et IX Et M > O C7 C7 U oa U U 0 0 0 0 N ' a) a a F- ch CC 0 t] a d O- N c O C7 jr y WLL Qa Qa i a) J J in m in' o U U a)O a) °) O a 5 F 2 z° 0 o U co u) u)0 co m et 0)Y-m 00 >>O m m m m d co c O O 7a = a a Jf=a 0 1-0 a a a a • o .a a) o o >_ `- Z a a) 0 0 E. 0 E. E. 0 E. 0 0 0 0 3 1 P ! 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J J J .J 0 0 0 ,, ,.. 0 0 0 0 0 0 0 - 1.,,_.'' w < cC., U (rl Ui Ci MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: 1� DATE:Friday,September 09,2011 Jim Regg P.I.Supervisor ' t' 'V7/4 SUBJECT:Mechanical Integrity Tests BP EXPLORATION(ALASKA)INC W-220 FROM: Chuck Scheve PRUDHOE BAY UN POL W-220 Petroleum Inspector Src: Inspector Reviewed By: P.I.Supry . re-- NON-CONFIDENTIAL Comm Well Name: PRUDHOE BAY UN POL W-220 API Well Number: 50-029-23432-00-00 Inspector Name: Chuck Scheve Insp Num: mitCS110901170108 Permit Number: 210-126-0 Inspection Date: 9/1/2011 Rel Insp Num: Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well 1 W-220 :;Type Inj. W •1 TVD i 5194 - IA 180 2100 t 2040 2040 - i I I — P.T.D� 2101260 .,TypeTest SPT 1 Test psi j 1500 • OA 160 300 310 310 Interval INIT!- P/F P - Tubing 1550 1550 1550 1550 L Notes: Friday,September 09,2011 Page 1 of 1 SlfA'TE OF AIASEn SEAN PARNELL,GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 ADMINISTRATIVE APPROVAL NO. AREA INJECTION ORDER 25A.009 Mr. Mark Vandergon BPXA, Base Management Team Lead BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Request to Allow Enriched Hydrocarbon Gas Injection PBU W-220 (PTD 2101260) Polaris Oil Pool Dear Mr. Vandergon: By letter dated February 21, 2011, BP Exploration (Alaska) Inc. (BPXA) requested approval to allow enriched hydrocarbon gas injection in Well PBU Polaris W-220 (PTD 2101260)). The Commission GRANTS BPXA's request in accordance with Rules 2 and 13 of AIO 25A.000. An Application for Sundry Approval (Form 10-403) is not required; however a Report of Sundry Well Operations (Form 10-404) must be submitted documenting the commencement of enriched gas injection. DONE at Anchorage,Alaska and dated March 9,2011. tkosKA 04o 1 Daniel T. amount, Jr. Cathy P oerster r(Jnr :0 0%* Commi Toner, Chair Commissioner AIO 25A.009 March 9,2011 Page 2 of 2 RECONSIDERATION AND APPEAL NOTICE As provided in AS 31.05.080(a),within 20 days after written notice of the entry of this order or decision,or such further time as the Commission grants for good cause shown,a person affected by it may file with the Commission an application for reconsideration of the matter determined by it. If the notice was mailed,then the period of time shall be 23 days. An application for reconsideration must set out the respect in which the order or decision is believed to be erroneous. The Commission shall grant or refuse the application for reconsideration in whole or in part within 10 days after it is filed. Failure to act on it within 10-days is a denial of reconsideration. If the Commission denies reconsideration,upon denial,this order or decision and the denial of reconsideration are FINAL and may be appealed to superior court. The appeal MUST be filed within 33 days after the date on which the Commission mails,OR 30 days if the Commission otherwise distributes,the order or decision denying reconsideration,UNLESS the denial is by inaction,in which case the appeal MUST be filed within 40 days after the date on which the application for reconsideration was filed. If the Commission grants an application for reconsideration, this order or decision does not become final. Rather, the order or decision on reconsideration will be the FINAL order or decision of the Commission,and it may be appealed to superior court. That appeal MUST be filed within 33 days after the date on which the Commission mails,OR 30 days if the Commission otherwise distributes,the order or decision on reconsideration. As provided in AS 31.05.080(b),"[t]he questions reviewed on appeal are limited to the questions presented to the Commission by the application for reconsideration." In computing a period of time above,the date of the event or default after which the designated period begins to run is not included in the period; the last day of the period is included,unless it falls on a weekend or state holiday,in which event the period runs until 5:00 p.m.on the next day that does not fall on a weekend or state holiday. WELL LOG TRANSMITTAL To: State of Alaska February 18,2011 Alaska Oil and Gas Conservation Commission Attn.: Christine Shartzer 333 West 7th Avenue,Suite 100 Anchorage,Alaska 99501-3539 RE: LWD Formation Evaluation Logs: W-220i+PB1+PB2 AK-MW-0007521066 W-220i 50-029-23432-00 2"x 5" MD Triple Combo Logs: 1 Color Log 2"x 5"TVD Triple Combo Logs: 1 Color Log W-220i PB1 50-029-23432-70 2"x 5" MD Gamma+Resistivity Logs: 1 Color Log 2"x 5" TVD Gamma+Resistivity Logs: 1 Color Log W-220i PB2 50-029-23432-71 2"x 5" MD Gamma+Resistivity Logs: 1 Color Log 2"x 5" TVD Gamma+Resistivity Logs: 1 Color Log Digital Log Images &LWDG-formatted LIS Data w/verification listing; 1 CD Rom PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Attn: Bryan Burinda 6900 Arctic Blvd. Anchorage,Alaska 99518 Office: 907-273-3536 1 U 19(° 0�Jr� Fax: 90 }� Bryan.:' r FEB 24, 2011 Date: Signed: Maks 01 Gas con:.Commission Anchorage W-202L2 Directional Plan Chan-- Page 1 of 1 t Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) Sent: Thursday, February 24, 2011 2:20 PM To: 'Staudinger, Garret' Subject: RE: W-202L2 Directional Plan Change (PTD 210-135) Garret, As we discussed shortening the wellbore doesn't require sundry or PTD revisions. You are also within 500' of the planned wellpath.... Thanks for the update. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Staudinger, Garret [mailto:Garret.Staudinger @bp.com] Sent: Thursday, February 24, 2011 2:02 PM To: Schwartz, Guy L (DOA) Subject: W-202L2 Directional Plan Change Guy, I wanted to give you a heads up that we are tweaking the W-202L2 lateral directional plan slightly. We are shortening it by 2300' and moving it about 300' to the west, all to maintain standoff from the oil water contact. Attached is the directional. Per our conversation, I do not believe that we need any type of permit revision. Attached is the directional. Please let me know if you have any questions. Thanks Garret «W-202L2 (P8) report.ZIP» Garret Staudinger Operations Drilling Engineer BP Exploration Alaska, Inc. Work: (907) 564-4242 Cell: (907)440-6892 2/24/2011 t —, - 15000— Project: Prudhoe Bay Site: PB W Pad Well: W-202 Wellbore: W-202L2 14250— Design: Plan #8 W-202L2 13500— `�Ory 12750— 12000— 11250— 10500-- Ripn W-221/Plan#12 '21 51 '-/Q 51 49 �.�{'� G 3�t W 9750— 48 , / yri- 46 c 9000— Viiii8/Wii8 18tiltli1;0 1.0 p :y1 LO 8250— 04 8 2 51 1aL L r O Z 14f-21:'r -218 f c 7500— rd.. ' �51 (n 4• 4 12" 6750— m I IM- 02/Plan#8 W-202L2 CL I 4: 91)•202M111/-202L2; J ^QQ7 46 6000— I oiP - w tor i 217,!W-21 Plan W-223/plan#12 W-223 41 5250- 49 tell/ 48 y 46 4500—: « �T 115EAN �4 -- 1-191;'- - 409 ,.?1 /, 3750— c4.1_ v2161W-216 �:�?, i ' 51 o 49 Jpe? lye 48 2 /j cont o 3000— IF 4 21 is 7 5/8"� W� W-202L2 Poly 2250 R, s if' ,48 .; r • co m 1500— �� 4 ti. u M/ /4'.8 ry 242`2 a3la• 3 _----0 j X80 750 1 I I I I T T [' 1 48r 1 '1 r , 1 1 1 1 1 l 5 l ■ , I ■ I I 1 1 I I 11 1 I I I I l I 1 I I ■ I ■ I I ■ I -1500 -750 0 750 1501 2250 3000 3750 4500 5250 6000 6750 7500 8250 N West(-)/East(+)(1500 ft/in) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1 a. Well Status: ❑Oil ❑Gas ❑SPLUG ❑Other ❑Abandoned ❑Suspended 1 b. Well Class: 20AAC 25.105 20AAC 25.110 ❑ Development ❑Exploratory ❑GINJ ®WINJ ❑WAG ❑WDSPL ❑Other No.of Completions One 0 Service ❑Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska)Inc. 1/1/2011 210-126 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 11/25/2010 50-029-23432-00-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 12/19/2010 PBU W-220 346'FNL, 1175'FEL,SEC.21,T11N, R12E, UM 8. KB(ft above MSL): 87.30' 15.Field/Pool(s): Top of Productive Horizon: 2493'FNL, 1246'FEL,SEC. 10,T11N,R12E, UM GL(ft above MSL): 53.4' Prudhoe Bay Field/Polaris Pool Total Depth: 9.Plug Back Depth(MD+TVD): 2038'FNL, 1246'FEL,SEC. 10,T11N, R12E, UM 12493' 5520' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 612049 y- 5959911 Zone- ASP4 12581' 5575' ADL 028261 &028263 TPI: x- 617113 y- 5968401 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 617105 Y- 5968856 Zone- ASP4 N/A 18.Directional Survey: 0 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,Gyro,GR, RES, NEU,Azi-Den, PWD, GR/CCL, USIT-GPIT _ 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" 129.5# X-65 Surface 102' Surface 102' 42" -260 sx Arctic Set 13-3/8" 68# L-80 34' 2342' 34' 2042' 16" 966 sx Arctic Set Lite.1048 sx Class'G' 9-5/8" 40# L-80 2191' 6228' 1949' 3348' 12-1/4" 202 sx LiteCRETE. 1334 sx Class'G' 7" 26# L-80 32' 12570' 32' 5568' 8-3/4" 448 sx LiteCRETE.206 sx Class'G' 24. Open to production or injection? 0 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): 4-1/2"GUn Diameter,5 SPF 3-1/2",9.2#,L-80 12358' 11951'/5194', MD TVD MD TVD 12088'/5276', 12225'/5357' 12010'-12050' 5230'-5254' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 12154'-12194' 5315'-5339' 12238'-12294' 5365'-5398' 1 il DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED r G•th ' Freeze Protected with 242 Bbls Dead Crude 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): Not on Injection N/A Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 24-Hour Rate 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 aikcjalsr*rpnAlytilts per 20 AAC 250.071. Kitt"c rvi_p None Ai\ I ,?U1) RBDMS JAN 31 201j vi!,,,..'b4 g . Gs ;are Cor\ ';s3'i Form 10-407 Revised 12/2009 CONTINUED ON REVERSE i•mit Original Only 129. GEOLOGIC MARKERS(List all formations and m, .s encountered): 30. .)RMATION TESTS NAME MD TVD Well Tested? ❑Yes IS No Permafrost Top 34' 34' If yes,list intervals and formations tested,briefly summarizing test Permafrost Base 2243' 1982' results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Top Ugnu 6544' 3442' UG_MA 11070' 4747' None UG_MB1 11204' 4803' UG_MB2 11326' 4857' UG MC 11501' 4940' SB_NA 11628' 5007' SB_NB 11684' 5039' SB_NC 11745' 5074' SB_NE 11761' 5083' SB_NF 11851' 5135' SB_OA 11909' 5169' SB_OBA 12008' 5229' SB_OBB 12065' 5263' SB_OBC 12155' 5316' SB_OBD 12233' 5362' SB_OBE 12351' 5433' SB_OBF 12421' 5475' Base SB_OBF/Top Colville Mudstone 12498' 5523' Formation at Total Depth(Name): Top Colville Mudstone 10032' 4436' 31.List of Attachments: Summary of Daily Drilling Reports,Well work summary,Well Schematic Diagram,Surveys and Leak-Off Test summary. 32.I hereby certify that the fore•oiling is true and correct to the best of my knowledge. Signed: Sond - Stewma I i , ,.11/-(., Title: Drilling Technologist Dater L -. r7 `I t PBU W-220 210-126 Prepared By Name/Number. Sondra Stewman,564-4750 Well Number Permit No./Approval No. Drilling Engineer: Garret Staudinger, 564-4242 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 12/2009 Submit Original Only TREE= CIW (WELLHEAD= FMC?? VV-220 SAF NOTES: WELLANGLE>70° @ 3191' ACTUATOR= BAKER C KB. ELEV= 87.3' BF. ELEV = 53.4' KOP= 480' 20"CONDUCTOR, 108' 29' h4-1/2"X 3-1/2"XO, ID=2.992" I Max Angle= 75°@ 3477' 91.5#,A-53, Datum MD= 11769' 2191' 1-113-3/8"X 9-5/8"ZXP LTP&HGR, ID=8.78" I ID=19.124" Datum TV D= 5000.SS ' ' 3555' 1-13-1/2"HES X NIP, ID=2.813" I 13-3/8"CSG,68#,L-80 BTC,ID=12.415" H 2342' 9-5/8"CSG,40#,L-80 BTC, ID=8.835" H 6228' 1--A WATER INJECTION MANDRELS Minimum ID = 2.750„ @ 6679' ST MD TVD DEV TYPE VLV LATCH PORT DATE 3-1/2" HES XN NIPPLE 5 11988 5216 53 MMG-HW-E DMY RK 0 12/31/10 4 12056 5257 54 MMG-HW-D DMY RK 0 12/31/10 3 12126 5298 54 MMG-HW-C DMY RK 0 12/31/10 2 12192 5338 54 MMG-HW-B DMY RK 0 12/31/10 3-1/2" PIP TAG 11905' 1-10 1 12272 5385 53 MMG-HW-A DMY RK 0 12/31/10 X 11951'1-17"X 3-1/2"BOT PREM PORTED PKR, ID=2.970" • 11968' —13-1/2"NDPG MULTI SUB, ID=2.992" I 7" MARKER JOINT w/RA TAG —1 11980' 1-, — 12088' -17"X 3-1/2"BOT PREM PORTED PKR, ID=2.970" I • 12105' —13-1/2"NDPG MULTI SUB, ID=2.992" PERFORATION SUMMARY REF LOG:LWD LONG ON 12/20/10 — ANGLE AT TOP PERF:53°@ 12010' 12225' —17"X 3 1/2"BOT PREM PORTED PKR, ID=2.970" Note: Refer to Production DB for historical perf data SIZE SPF ZONE INTERVAL Opn/Sqz DATE 4-1/2" 5 OBa 12010- 12050 0 12/30/10 4-1/2" 5 OBc 12154- 12194 0 12/30/10 • _ 12242' —13-1/2"NDPG SINGLE SUB,ID=2.9921 i 4-1/2" 5 Obd 12238-12294 0 12/30/10 _ 12315' 1-13-1/2"HES X NIP, ID=2.813" 1 8 1 12345' —{3-1/2"HES XN NIP,ID=2.750" 1 1• 2331' 1-13-1/2"HACPA PLUG(12/31/10) I 3-1/2"TBG,9.2#,L-80 TCII, .0087 bpf, ID=2.992" H 12358' 1• 2358' 1-13-1/2"WLEG, ID=2.992" I PBTD —1 12493' vivA wgrAvAvAlriv, 7"LNR,26#,L-80 VAM TOP HC, .0383 bpf, ID=6.276" H 12570' 4.4.4.4.e.e.1.t.1A.t (BOTTOM 2 JOINTS L-80 BTC-M) DATE REV BY COMMENTS DATE REV BY COMMENTS POLARIS UNIT 01/01/11 D-14 ORIGINAL COMPLETION WELL: W-220 01/09/11 PJC DRLG DRAFT CORRECTIONS PERMIT No:"2101260 01/11/11 TW/PJC FINAL DRLG CORRECTIONS API No: 50-029-23432-00 SEC 21,T11 N,R12E,346'FNL&1175'FEL BP Exploration(Alaska) North America -ALASKA- BP Page 1 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type:DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date X3-00W90-C:(4,689,994.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/25/2010 06:00 - 07:00 1.00 MOB P PRE SKID RIG FLOOR TO MOVE POSITION 07:00 - 10:00 3.00 MOB P PRE MOVE RIG OFF W-219 MOVE AND SPOT RIG OVER W-220 10:00 - 11:00 1.00 BOPSUR P PRE SET DIVERTER TEE AND ANNULAR PREVENTER ON CONDUCTOR INSTALL KNIFE VALVE ON DIVERTER TEE 11:00 - 12:00 1.00 MOB P PRE SKID RIG FLOOR TO DRILLING POSITION 12:00 - 14:00 2.00 RIGU P PRE RIG UP LINES UNDER RIG FLOOR LINE UP PITS TO TAKE ON DRILLPLEX SPOT ROCK WASHER,MWD SHACK,AND ARCTIC GRADE FUEL TANK ON OFF-DRILLER SIDE OF RIG 14:00 - 18:00 4.00 RIGU P PRE RIG UP DIVERTER LINE, MOUSEHOLE, BEAVER SLIDE,TOP DRIVE CONNECTIONS, RISER AND FLOWLINE CALIBRATE AND TEST H2S/LEL ALARMS 18:00 - 19:30 1.50 RIGU P PRE SPOT TIGER TANK,WARMUP SHACK,MUD ENGINEER SHACK,AND GEOLOGIST SHACK ON DRILLER SIDE OF RIG 19:30 - 22:30 3.00 RIGU P PRE CHANGE OUT SAVER SUB IN TOP DRIVE FROM 4"HT-38 TO 4-1/2"IF LOAD AND STRAP 5"DRILLPIPE IN PIPE SHED 22:30 - 00:00 1.50 "' RIGU P PRE PICK UP AND MAKE UP 5"DRILLPIPE STANDS RUN IN FIRST STAND TO DETERMINE ICE BUILDUP IN CONDUCTOR -ABLE TO RUN FULL STAND TO ROTARY TABLE -ABLE TO MAKE UP BHA COMPONENTS WITHOUT DRILLING OUT 11/26/2010 00:00 - 02:30 2.50 RIGU P PRE CONTINUE TO BUILD 5"DRILLPIPE STANDS AND RACK BACK IN DERRICK 02:30 - 03:30 1.00 RIGU P PRE BUILD 5"HWDP STANDS AND RACK BACK IN DERRICK 03:30 - 05:00 1.50 RIGU P PRE SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE,CROWN,AND BLOCKS ADJUST DRAWWORKS BRAKES 05:00 - 06:00 1.00 RIGU P PRE PRE-SPUD DERRICK INSPECTION 06:00 - 07:00 1.00 RIGU P PRE MOBILIZE BHA COMPONENTS TO RIG FLOO13 07:00 - 07:30 0.50 RIGU P PRE PICK UP 7-3/4"FLEX COLLARS BUILD FLEX COLLAR STANDS 07:30 - 08:00 0.50 BOPSUR P PRE _TEST ANNULAR PREVENTER KNIFE VLAVE, AND KOOMEY UNIT PER AOGCC,BP REGULATIONS AND POLICIES 1✓ -3,000 PSI SYSTEM PRESSURE �Gf� -KNIFE VALVE OPENED IN 3 SECONDS -21-1/4"ANNULAR CLOSED AROUND 7-3/4" FLEX COLLAR IN 41 SECONDS -SYSTEM PRESSURE 1,850 PSI AFTER ANNULAR AND KNIFE VALVE FUNCTIONED -200 PSI RECOVERY IN 26 SECONDS -KOOMEY UNIT TO RECOVER FULL PRESSURE IN 3 MIN 08 SECONDS Printed 1/27/2011 5.47.32PM North America -ALASKA- BP Page 2 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C:(4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 10:00 2.00 RIGU P PRE RACK BACK FLEX COLLARS IN DERRICK START ASSEMBLING BHA#1 10:00 - 12:00 2.00 RIGU P PRE RIG UP GYRO UNIT SIMOPS:UPLOAD MWD TOOL 12:00 - 14:00 2.00 RIGU P PRE FINISH ASSEMBLING BHA#1 AS FOLLOWS: -16"SMITH XR+C ROLLER CONE BIT,3X18, 1X16 JETS -8"SPERRYDRILL 4/5 LOBE,5.3 STG MUD MOTOR WITH ABI.MOTOR BEND AT 1.83 DEGREES -NON-MAG 8"FLOAT SUB WITH NON-PORTED FLOAT -NON MAG 13-3/8"STABILIZER -NON-MAG 8"CROSSOVER SUB -NON-MAG 8"DM COLLAR -NON-MAG 8"GR/HCIM COLLAR -NON-MAG 8"POS PULSER -NON-MAG 8"ORIENTING SUB,OBHO -7-3/4"DRILLING JARS 14:00 - 17:00 3.00 DRILL P SURF PICK UP 5"HWDP DRILL FROM 102'TO 264'MD GYRO AT 264' DRILL AHEAD TO 355'MD 17:00 - 19:00 2.00 DRILL P SURF POOH AND RACK BACK HWDP -3 STANDS LAY DOWN DRILLING JARS PICK UP FLEX COLLAR STAND PICK UP DRILLING JARS PICK UP 2 STANDS 5"HWDP 19:00 - 23:30 4.50 DRILL P SURF DRILL AHEAD FROM 355'TO 535'MD RUN GYRO SURVEYS EVERY 90' START RUNNING GYRO SURVEYS EVERY 30' STARTING AT 475'MD -CLOSE APPROACH WITH W-223 PLAN WELLPATH SHUT DOWN AT 535'MD -LAST SURVEY CLOSE TO TOLERABLE COLLISION ELIPSE FROM W-223 PLAN WELLPATH 23:30 - 00:00 0.50 DRILL N DPRB 545.40 SURF MOTOR NOT ACHIEVING DESIRED DOGLEGS -1.83 DEGREE MOTOR PLANNED FOR 6.0 DEG/100'DOGLEGS -MOTOR ACHIEVING 2.49 DEG/100'DOGLEGS POOH, RACKING BACK DRILLPIPE AND HWDP LAY DOWN DRILLING JARS 11/27/2010 00:00 - 01:00 1.00 DRILL N DPRB 545.40 SURF LAY DOWN DRILLING JARS BACK OUT MWD SUITE AND LAY ON PIPE SKATE LAY DOWN STABILIZER INSPECT BIT BIT GRADE: 1-1-WT-G-E-I-NO-BHA 01:00 - 02:00 1.00 DRILL N DPRB 545.40 SURF NOTIFY ODE OF PLAN TO SURVEY CLOSER TO BIT INCREASE MOTOR BEND FROM 18.3 TO 2.12 DEGREES MAKE UP UBHO SUB ON TOP OF FLOAT SUB PICK UP FLEX COLLARS PICK UP DRILLING JARS V Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 3 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 ' End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual©87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 03:00 1.00 DRILL N DPRB 545.40 SURF RIH ON HWDP TO 524'MD RUN GYRO FOR SURVEY -GYRO DEPTH 480'MD -SURVEY POINT CLOSE TO W-223 WELLPLAN TOLERABLE COLLISION LINE 8.7 PPG MUD WT IN AND OUT 03:00 - 04:00 1.00 DRILL N DPRB 545.40 SURF POOH TO UBHO -RACK BACK HWDP IN DERRICK -LAY DOWN DRILLING JARS -RACK BACK FLEX COLLARS IN DERRICK NOTIFY OPS SUPERINTENDENT OF ANTI-COLLISION SITUATION WITH FUTURE WELLPLAN FOR W-223 PER OPS SUPERINTENDENT CONVERSATION, NOTIFY ODE OF ANTI-COLLISION SITUATION 04:00 - 05:00 1.00 DRILL N DPRB l 545.40 SURF INSPECT UBHO CHECK MUD MOTOR/UBHO ORIENTATION MAKE UP FLEX COLLARS AND JARS 05:00 - 05:30 0.50 DRILL N DPRB 545.40 SURF RIH ON HWDP TO 524'MD RUN GYRO AT 524'MD 8.7 PPG MUD WT IN AND OUT 05:30 - 11:00 5.50 DRILL` P SURF DRILL AHEAD FROM 540'TO 617'Mn -GYRO SURVEYS EVERY 30' -PUW 85K,SOW 85K,ROT 85K -540 GPM,820 PSI ON,640 PSI OFF -0 RPM,100%SLIDE -WOB 15-25K -MUD WT IN 8.8 PPG,MUD WT OUT 8.9 PPG -GYRO SURVEYS CONFIRM CROSSING WELLPLAN W-223 TOLERANCE LINE AT 500' MD, MAX ENCROACHMENT 2.5'AT 524'MD, AND EXIT TOLERANCE LINE AT 550'MD ART 0.00;AST 1.68;ADT 1.68 11:00 - 13:00 2.00 DRILL N DPRB 622.40 SURF BLOW DOWN TOP DRIVE POOH FROM 617'TO 37'MD -RACK BACK HWDP -LAY DOWN JARS -RACK BACK FLEX COLLARS BREAK OUT UBHO BREAK OUT AND LAY DOWN 16"SMITH BIT -BIT GRADE: 1-1-WT-G-E-I-NO-BHA Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 4 of 26 • Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C:(4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 15:30 2.50 DRILL N DPRB 622.40 SURF REASSEMBLE BHA(BHA#3)AS FOLLOWS: -16"HUGHES MX-1 ROLLER CONE BIT,3X18, 1X16 JETS -8"SPERRYDRILL 4/5 LOBE,5.3 STG MUD MOTOR WITH ABI.MOTOR BEND AT 2.12 DEGREES -NON-MAG 8"FLOAT SUB WITH NON-PORTED FLOAT -NON MAG 13-3/8"STABILIZER -NON-MAG 8"CROSSOVER SUB -NON-MAG 8"DM COLLAR -NON-MAG 8"GR/HCIM COLLAR -NON-MAG 8"POS PULSER -NON-MAG 8"ORIENTING SUB,OBHO -ONE STAND 7-3/4"NON-MAG FLEX COLLARS -7-3/4"DRILLING JARS -4 STANDS 5"X 3"HWDP RUN TO 562'(BHA NOT FULLY BUILT)AND GYRO PICK UP LAST STAND OF 5"X 3"HWDP AND RIH TO TD AT 617' -TOTAL BHA LENGTH 653.72' 15:30 - 00:00 8.50 DRILL P SURF DRILL AHEAD FROM 617'TO 11131'M1) -GYRO SURVEYS EVERY 30' -PUW 98K,SOW 98K,ROT 98K -526 GPM,1,100 PSI ON,910 PSI OFF -20 RPM,TQ 1-2K ON,1K OFF -WOB 25K -MW IN 8.9 PPG,MW OUT 9.2 PPG ART 0.42;AST 4.75;ADT 5.17 ADT FOR LAST 24 HRS:6.85 LOSSES TO FORMATION OVER LAST 24 HRS: 11/28/2010 00:00 - 10:00 10.00 DRILL P SURF SLIDE AHEAD IN SURFACE HOLE FROM 1,031' TO 1,412'MD -100%SLIDE TO ACHIEVE DESIRED DOGLEG -GYRO SURVEY EVERY 30' -PUW 101K,SOW 93K, ROT 100K -540 GPM,1,330 PSI ON,990 PSI OFF -20 RPM,TQ 8K ON,2K OFF -WOB 40K -MW IN 9.0 PPG,MW OUT 9.1 PPG ART 0.62,AST 5.26,ADT 5.88 LAST SURVEY SHOWED 9.79 DEG/100FT DOGLEG 10:00 - 11:00 1.00 DRILL N DPRB 1,417.40 SURF CIRCULATE BOTTOMS-UP -540 GPM,990 PSI -20 RPM,TQ 2K -RACK BACK ONE STAND EVERY 15 MINUTES -FINAL BIT DEPTH AT BU: 1,222'MD Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 5 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) I Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) • Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor. DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:00 - 12:30 1.50 DRILL N DPRB 1,417.40 SURF FLOW CHECK WELL -NO FLOW POOH FROM 1,222'TO 618"MD MUD WT 9.0 PPG SIMOPS DURING FLOW CHECK: RIG DOWN SPERRY E-LINE AND GYRODATA DYRO TOOLS 12:30 - 13:00 0.50 DRILL N DPRB 1,417.40 SURF MAD PASS FROM 618'TO 533'MD -400 FT/HR 13:00 - 14:00 1.00 DRILL N DPRB 1,417.40 SURF POOH TO BIT -RACK BACK 5"HWDP -LAY DOWN JARS IN PIPE SHED -RACK BACK 7-3/4"FLEX COLLARS BREAK AND LAY DOWN UBHO DIAL DOWN MUD MOTOR FROM 2.12 TO 1.83 DEGREES MAKE UP 13-3/8"STABILIZER ABOVE FLOAT SUB BIT GRADE: 1-1-WT-A-E-I-NO-BHA 14:00 - 15:00 1.00 DRILL N DPRB 1,417.40 SURF CHANGE MUD MOTOR BEND FROM 2.12 DEGREES TO 1.83 DEGREES NEW BHA ASW FOLLOWS: -16"HUGHES MX-1 ROLLER CONE BIT,3X18, 1X16 JETS -8"SPERRYDRILL 4/5 LOBE,5.3 STG MUD MOTOR WITH ABI.MOTOR BEND AT 1.83 DEGREES -NON-MAG 8"FLOAT SUB WITH NON-PORTED FLOAT -NON MAG 13-3/8"STABILIZER -NON-MAG 8"CROSSOVER SUB -NON-MAG 8"DM COLLAR -NON-MAG 8"GR/HCIM COLLAR -NON-MAG 8"POS PULSER -ONE STAND 7-3/4"NON-MAG FLEX COLLARS -7-3/4"DRILLING JARS -5 STANDS 5"X 3"HWDP TOTAL BHA LENGTH 657.15' 15:00 - 15:30 0.50 DRILL N DPRB 1,417.40 SURF RIH TO 1,230'MD MUD WT 9.0 PPG 15:30 - 17:00 1.50 DRILL N DPRB 1,417.40 SURF BACKREAM FROM 1,230'TO 1,130'MD -700 GPM,1,730 PSI -90 RPM,TQ 5K 17:00 - 17:30 0.50 DRILL N DPRB 1,407.40 SURF RIH TO 1,300' ROTATE AHEAD TO SIDETRACK WELL -9.79 DEGREE DOGLEG TOO HIGH TO ACHIEVE WELL OBJECTIVES -650 GPM,1,470 PSI -60 RPM,1-4K TO REAM JUNCTION MULTIPLE TIMES AFTER SIDETRACKING STAND DOWN ORIENT BIT HIGH SIDE AND SLIDE THROUGH JUNCTION TO CONFIRM PREFERENTIAL PATH IS DOWN SIDETRACK 17:30 - 19:00 1.50 DRILL N DPRB 1,417.40 SURF DRILL AHEAD IN 16"HOLE FROM 1,300 TO 1,412'MD -MD FOR PB1 WELLBORE Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 6 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type:DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) - 19:00 - 22:00 3.00 DRILL P -_ SURF DIRECTIONALLY DRILL AHEAD FROM 1,412' TO 1,582'MD 22:00 - 23:00 1.00 DRILL N RREP 1,587.40 SURF WASHED OUT RIGHT POD SWAB IN#2 MUD PUMP CHANGE OUT SWAB AND LINER 23:00 - 00:00 1.00 DRILL P SURF DIRECTIONALLY DRILL AHEAD FROM 1,582' TO 1,625'MD -PUW 110K,SOW 100K,ROT 105K 655.GPM,1,800 PSI ON,1,460 PSI OFF 60 RPM,TQ 8K ON,5K OFF -25K WOB -MW IN 9.0 PPG,MW OUT 9.2 PPG ART 2.07,AST 1.93,ADT 4.00 ADT FOR LAST 24 HRS:9.88 11/29/2010 00:00 - 00:30 0.50 DRILL P ® SURF DIRECTIONALLY DRILL AHEAD FROM 1,625' TO 1,704'MD 00:30 - 01:30 1.00 DRILL N SFAL 1,709.40 SURF REPLACE WASHED OUT SWAB AND LINER ON LEFT POD OF#1 MUD PUMP 01:30 - 09:00 7.50 DRILL P SURF DIRECTIONALLY DRILL AHEAD FROM 1,704' TO 2,352'MD PUW 117K,SOW 95K,ROT 105K 630 GPM,1,820 PSI ON,1,500 PSI OFF -60 RPM,TQ 8K ON,4K OFF -WOB 30K -MUD WT 9.2 PPG TD CALLED BY WELLSITE GEOLOGIST ART 2.06,AST 4.19,ADT 6.25 09:00 - 10:00 1.00 DRILL P SURF CIRCULATE BOTTOMS-UP WHILE BACKREAMING OOH -700 GPM,1,960 PSI -60 RPM -STAND BACK ONE STAND EVERY 15 MINUTES 10:00 11:00 1.00 DRILL P ■- SURF POOH ON ELEVATORS FROM 2,080'TO 1,036' MD -MUD WT 9.2 PPG 11:00 - 12:00 1.00 DRILL P SURF RIH FROM 1,036'TO 1,477'MD -STOP AT 1,477'FOR SURVEY CONTINUE TO RIH FROM 1,477'TO TO 2,352' MD -WASH DOWN LAST STAND TO TD -MUD WT 9.2 PPG 12:00 - 13:00 1.00 DRILL P SURF CIRCULATE BOTTOMS-UP WHILE BACKREAMING OOH -700 GPM,2,160 PSI -60 RPM,TQ 4K -STAND BACK ONE STAND EVERY 15 MINUTES -FINAL PARAMETERS: -PUW 115K,SOW 100K,ROT 105K 13:00 - 14:30 1.50 DRILL P SURF POOH ON ELEVATORS FROM 2,080'TO 657' MD -RACK BACK 5"HWDP AND 7-3/4"FLEX COLLARS Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 7 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE (DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 17:30 3.00 DRILL P SURF LAY DOWN MWD TOOLS BREAK BIT AND LAY DOWN MUD NOTOR BIT GRADE: 1-2-WT-A-0-1-NO-TD 17:30 - 22:00 4.50 CASING P SURF. '`CLEAN AND CLEAR RIG FLOOR MOBILIZE TESCO TOOLS TO RIG FLOOR FOR CASING RUN 22:00 - 23:00 1.00 CASING P SURF PICK UP LANDING JOINT WITH HANGER ATTACHED MAKE DUMMY RUN TO LAND HANGER AND AND MARK LANDING JOINT AT DEPTH HANGER LANDS ON RING 23:00 - 00:00 1.00 CASING P SURF HOLD PJSM WITH CREW ON RUNNING CASING WITH TESCO CASING RUNNING TOOL PICK UP SHOE JOINT AND RIH 11/30/2010 00:00 - 07:30 7.50 CASING P SURF HOLD PJSM WITH NEW CREW AND TESCO HANDS RUN 13-3/8'SURFACE CASING WITH WARTHOG REAMER SHOE AND TESCO CASING DRIVE SYSTEM -FILL PIPE EVERY JOINT -CHECK FLOATS AFTER MAKING UP PUP JOINT ON TOP OF FLOAT COLLAR JOINT- FLOATS HOLDING -CHECK DISPLACEMENT VOLUMES EVERY 5 JOINTS -BREAK CIRCULATION AND WASH DOWN EVERY 10TH JOINT 07:30 - 09.00 1.50 CASING P SURF MU HANGER AND LANDING JOINT. WASH TO BOTTOM AT 2 342' -190K PUW,135K SOW -168 GPM,220 PSI 09:00 - 12:30 3.50 CASING P SURF CIRCULATE AND CONDITION MUD FOR UPCOMING CEMENT JOB. RECIPROCATE PIPE. -175K PUW,145K SOW STAGE UP PUMPS TO 10 BPM AT 430 PSI. CONTINUE TO CIRCULATE. -330 GPM,290 PSI Printed 1/27/2011 5:47:32PM North America-ALASKA- BP Page 8 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay I Site: PB W Pad Rig Name/No.: DOYON 14 I Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual©87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 16:30 4.00 CEMT P SURF CEMENT CSG THROUGH TESCO CASING RUNNING TOOL -FLUSH LINES W/30 BBLS FRESH WATER, PUMP 10 BBLS 10.0 PPG MUD PUSH. PRESSURE TEST CEMENT LINES TO 4,000 PSI. PUMP 90 BBLS 10.0 PPG MUD PUSH, DROP BTM PLUG. MIX AND PUMP ON THE FLY LEAD: +µ� 407 BBLS,966 SK,ARTIC SET LITE,10.7 PPG, G �k 2.33 CFT/SK YIELD. SV TAIL: 218 BBLS,1048 SK,15.8 PPG 1.16 CFT/SK CS • YIELD. GT DROP BTM PLUG AND DISPALCE WITH 328 BBLS/3,244 STKS TO BUMP. BUMP PLUG W/950 PSI.HELD FOR 5 MIN. PRESS HELD. -FLOATS HOLDING PRESSURE UP TO 2,500 PSI. HELD FOR 5 MIN. PRESS HELD. BLEED OFF PRESS. / FULL RETURNS THROUGHOUT JOB ✓ 130 BBLS OF SIDEWALK CEMENT SEEN AT SURFACE CEMENT IN PLACE AT 17:10 11/30/2010 CEMENT JOB VOLUME: 407 BBLS 10.7 PPG ARCTIC SET LITE LEAD; 966 SACKS AT 2.33 CUFT/SK 218 BBLS 15.8 PPG CLASS G TAIL;1,048 SACKS AT 1.16 CUFT/SK _ 16:30 - 18:30 2.00 CEMT P SURF _- •CI.— BLOW DOWN TOP DRIVE DRAIN STACK CLEAN CEMENT OUT OF VALVES ON MUD MANIFOLD 18:30 - 20:30 2.00 CEMT P SURF ND DIVERTER ND FLOW LINE AND RISER FUNCTION KNIFE VALVE AND RINSE OUT CAVITY 20:30 - 00:00 3.50 CEMT P SURF PU ON HYDRILL DIVERTOR FMC BACK OUT LANDING JOINT AND LD REMOVE KNIFE VALVE 12/1/2010 00:00 - 01:00 1.00 CEMT SURF RD DIVERTER 01:00 - 02:30 1.50 CEMT SURF NU STARTER HEAD AND TUBING SPOOL FMC TEST FLANGE TO 1,000 PSI FOR 15 MINUTES 02:30 - 08:00 5.50 BOPSUR SURF NU BOPE _ -STACK,RISER,FLOW LINE,AND CHOKE LINE SIMOPS: RD TESCO CASING RUNNING TOOL Printed 1/27/2011 5:47:32PM • North America -ALASKA- BP Page 9 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 10:00 2.00 BOPSUR SURF RI I Tn TFST ROPF PERFORM BODY TEST TO 4,000 PSI FOR 5 MINUTES 10:00 - 16:30 6.50 BOPSUR SURF TEST BOPE -4,000 PSI HIGH,250 PSI LOW,5 MIN EACH n 42 -UPPER RAMS(3-1/2"X 6")WITH 5"TEST Na JOINT LOWER RAMS(2-7/8"X 5")WITH 5"TEST JOINT -BLIND SHEAR RAMS TEST MANUAL AND SUPER CHOKE TO 250 1L PSI LOW/2,500 PSI HIGH FOR 5 MIN L MANUAL IBOP ON TOP DRIVE -VALVES 1-14 TEST WITNESSED BY BP WSL JOEY LEBLANC, DOYON TP BOBBY INGRAM. AOGCC WITNESS BY JEFF JONES 16:30 - 18:00 1.50 BOPSUR SURF RD TEST EQUIPMENT BLOW DOWN CHOKE AND KILL LINE PULL TEST JOINT AND PLUG INSTALL WEAR BUSHING RU SHORT BALES,5"ELEVATORS,5"BELL GUIDE 18:00 - 21:00 3.00 BOPSUR SURF MANAGE HWDP PU DP FOR UPCOMING HOLE SECTION RIH WITH 5"DP SINGLES FROM SURFACE TO 1,985' 21:00 - 23:00 2.00 BOPSUR SURF POOH STANDING BACK 5"DP FROM 1,985'TO 0' **UNANNOUNCED BOP DRILL-KICK WHILE TRIPPING DRILL(D1)"" 23:00 - 00:00 1.00 BOPSUR SURF PU DP FOR UPCOMING HOLE SECTION RIH WITH 5"DP SINGLES FROM SURFACE TO 661' 12/2/2010 00:00 - 01:00 1.00 CEMT P SURF SERVICE RIG 01:00 - 01:30 0.50 CEMT P SURF RIH WITH 5"DP SINGLES TO 661' PERFORM UN-ANNOUNCED KICK DRILL(D-1 DRILL) 01:30 - 02:00 0.50 CEMT P SURF POOH AND RACK BACK STANDS IN DERRICK 02:00 - 02:30 0.50 CEMT P SURF MOVE BHA COMPONENTS TO RIG FLOOR 02:30 - 04:30 2.00 CEMT P SURF _MI1 BIT MOTOR FLT SUB.&MWD 04:30 - 06:00 1.50 CEMT P SURF MU BHA UPLOAD MWD 06:00 - 08:30 2.50 CEMT P SURF RIH WITH 5"DP SINGLES FROM 381'TO 1,997' MD 08:30 - 10:00 1.50 CEMT P SURF TEST 13-3/8"CASING -250 PSI LOW FOR 5 MIN,3,500 PSI HIGH FOR 30 MIN -TEST LOST 40 PSI IN THE FIRST 15 MIN,0 PSI IN THE SECOND 15 MIN FOR A TOTAL OF 40 PSI Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 10 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE (DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:00 - 10:30 0.50 CEMT P SURF RIH FROM 1,997 TO2,196'MD WASH DOWN FROM 2,196'TO TAG CEMENT AT 2,248'MD -300 GPM,430 PSI 30 RPM 10:30 - 14:30 4.00 CEMT P SURF DRILL CEMENT.FLOAT COLLAR,&SHOE TRACK FROM 2,248'TO 2,342'MD -PUW 117K,SOW 95K,ROT 105K -450 GPM,850 PSI ON,800 PSI OFF 30 RPM,TQ 10K ON,3K OFF WOB 12K -MUD WT 9.3 PPG DRILL 20'OF NEW FORMATION FROM 2.352' TO 2.372'MD -450 GPM,760 PSI ON -30 RPM,TQ 70K ON,3K OFF WOB 10-20K SPILL DRILL 14:30 - 16:30 2.00 CEMT P - SURF PULL INTO 13-3/8"CASING DISPLACE TO CLEAN 8.9 PPG DRILPLEX 16:30 - 18:30 2.00 CEMT P SURF ; • • Lt� 11.73 PPGE SIMOPS: CLEAN PITS IN PREPARATION FOR DRILLING 18:30 - 00:00 5.50 DRILL P INT1 DIRECTIONALLY DRILL FROM 2,372'TO 3,136' MD -PUW 125K,SOW 90K,ROT 100K -700 GPM,1,900 PSI ON,1,500 PSI OFF -100 RPM,TQ 9K ON,3K OFF -WOB 20K -MUD WT 9.0 PPG AST-0.9;ART-1.17; ADT-2.07 12/3/2010 00:00 - 19:30 19.50 DRILL P INT1 DIRECTIONALLY DRILL FROM 3,136'TO 6,365' MD -PUW 143K,SOW 90K,ROT 110K -720 GPM,2,850 PSI ON,2,720 PSI OFF -100 RPM,TQ 12-15K ON,8K OFF -WOB 35-40K -MUD WT OUT 9.3 PPG MW IN 9.3 PPG **UNANNOUNCED KICK WHILE DRILLING DRILL D2** 19:30 - 20:15 0.75 DRILL P INT1 CIRC&COND. -LOST ONE SCR @20:15 HR -ONLY ABLE TO USE ONE PUMP WITH ROTARY,OR BOTH PUMPS AND NO ROTARY DUE TO LOSS OF COOLING BLOWR FAN MOTOR SHORTED OUT 20:15 - 00:00 3.75 DRILL P INT1 REAM OUT OF HOLE 6,365'TO 5,039'MD -390 GPM @ 950 PSI ON ONE PUMP -PU 155K,SO 90K,ROT 110K -75 RPM,TQ 3K-20K 12/4/2010 00:00 - 03:00 3.00 DRILL P INT1 BACK REAM OUT OF THE HOLE ON ONE PUMP 5,039'TO 2,281'MD -400 GPM,650 PSI -75 RPM,10K TQ Printed 1/27/2011 5:47:32PM North America -ALASKA- BP: Page 11 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual©87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 06:00 3.00 DRILL N SFAL INT1 BACK REAM OUT OF THE HOLE ON ONE PUMP 5,039'TO 2,281'MD -400 GPM,650 PSI -75 RPM,10K TO ***UNABLE TO BACKREAM AT FULL RATE DUE TO RIG SCR FAILURE AND PUMPING RESTRICTIONS*** 06:00 - 09:30 3.50 DRILL P INT1 CIRCULATE HOLE CLEAN OF HEAVY CLAY -ROTATE AND RECIPROCATE -30 RPM -STAGE UP TO 800 GPM,2,230 PSI 09:30 - 10:00 0.50 DRILL P ■ INT1 LUBRICATE RIG. ***FIRE DRILL=1:51*** 10:00 - 13:00 3.00 DRILL P INT1 RIH FROM 2,881'TO 6,273'MD -FILL PIPE EVERY 15 STANDS WASH FROM 6,273'TO 6,365' -5 BPM,340 PSI MW IN-9.2 PPG;MW OUT-9.2 PPG 13:00 - 20:00 7.00 DRILL P INT1 BACKREAM OOH FROM 6,365'TO 5,894' -CIRCULATE 3 BOTTOMS UP RACKING BACK A STAND EVERY 15 MINUTES -100 RPM,10K FREE TORQ -755 GPM,2,560 PSI ATTEMPT TO PULL ON ELEVATORS -HOLE SWABBING PUMP OOH FROM 5,894'TO 2,342'MD -PUMPING 2X PIPE DISPLACEMENT PER STAND 20:00 - 21:30 1.50 DRILL P INT1 CBU X 2 PUMP NUT PLUG SWEEP -780 GPM,2,060 PSI -100 RPM,5-8 FREE TORQ -ROT WT-100K 21:30 - 23:00 1.50 DRILL P -_ INT1 POOH ON ELEVATORS FROM 2,342'TO 198' MD 23:00 - 00:00 1.00 DRILL P ■- INT1 JARS&3 X NON MAGNETIC FLEX COLLARS DOWNLOAD MWD ON RIG FLOOR 12/5/2010 00:00 - 01:00 1.00 DRILL P INT1 CONT. LD BHA -DRAIN MOTOR,BREAK OFF BIT, LD PULSER, HCIM,X-O'S,STAB,AND MOTOR. 12-1/4"HUGHES MXL-1X BIT GRADED 1-1-WT-A-E-2-NO-TD 01:00 - 01:30 0.50 CASING P INT1 CLEAR RIG FLOOR ✓ 01:30 - 02:00 0.50 CASING P INT1 DRAIN STACK&PULL WEAR RING Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 12 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(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 CASING P INT1 C:HANC,F OIIT TOP RAMS TO 9-5/8"CASING RAMS. INSTALL TEST PLUG AND 9-5/8"TEST JOINT -KILL WT.FLUID AND CLOSED BLIND RAMS AS BARRIERS AS PER ADWOP FOR BEAKING CONTAINMENT. -TEST 9-5/8 CSG RAMS TO 250 PSI LOW 4,000 PSI FOR 5 MIN. NO ISSUES. -RD TEST EQUIPMENT AND PULL TEST ° JOINT&PLUG. -INSTALL WEAR RING -AOGCC REP WAIVED WITNESS OF RAM TEST AS NOTED ON PREVIOUS REPORT. 06:00 - 08:30 2.50 CASING P INT1 ,RU 9-5/8"LINER EQUIPMENT. -CHANGE OUT BALES AND RU FRANKS FILL UP TOOL -RU DOYON CSG TONGS AND ELEVATORS. 08:30 - 17:00 8.50 CASING P INT1 RUN 9-5/8"LINER -MU SHOE TRACK FOR 9-5/8"LINER. -CROSSED TREADS ON LANDING COLLAR AND HAD TO RE-DRESS TRHEADS. -RIH W 9-5/8"40 LB/FT L-80 BTC LINER TO 2,080'MD 17:00 - 18:00 1.00 CASING P INT1 CIRCULATE&CONDITION MUD. -4.0 BPM,150 PSI -5.0 BPM,200 PSI -6.5 BPM,290 PSI 18:00 - 00:00 6.00 CASING P INT1 CC/NT TO RI IN 9-5/8"I INFR 2 080'MD TO 100'MD -LINER STARTED TAKING WT AT 3,517'MD -WORK LINER WHILE CIRCULATING 3,517'to 3,590'MD -PU 175K TO 155K -STAGING PUMP RATES UP AS CIRC IS RE-ESTABLISHED FROM 100 GPM TO 230 GPM. -LOST 23 BBLS TO FORMATION WHILE RUNNING CSG 12/6/2010 00:00 - 05:00 5.00 CASING N STUC 3,700.00 INT1 WASH LINER DOWN. -WORK 9.625"40#L-80 BTC CSG THROUGH TIGHT SPOT FROM 3,590'-3,705' -STICKY CLAYS (SWELLING BENTONITE) SEEN IN THE SV4 INTERVAL -PUW-160-175K -SOW-100-60 -250 GPM,370 PSI-650 PSI PIPE BECAME STUCK WHILE ATTEMPTING TO WIPE CLAY AT 3,700'MD 05:00 - 12:00 7.00 CASING N STUC 3,700.00 INT1 WORK STUCK PIPE 0 3.700' -MAX PUW=450K -MIN SOW=20K NO CIRCULATION PUMP 6 BBLS EVERY 20 MIN @ 2 BPM,720 PSI ***SPILL DRILL=1:25 MIN*** Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 13 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 16:00 4.00 CASING N STUC 3,700.00 INT1 CONT TO WORK STUCK PIPE an 3,700' -PUMP 6 BBLS EVERY 20 MIN,2 BPM,740 PSI PREPARE TO LD 1 JT 16:00 - 19:00 3.00 CASING N STUC 3,700.00 INT1 BACK OUT 1 JT 9-5/8" LD JT WITH ELEVTORS -, 19:00 - 22:00 3.00 CASING N STUC 3,700.00 INT1 PU BAKER TOOLS TO RIG FLOOR CLEAR FLOOR OF CASING TOOLS SET 9-5/8"CSG WITH 8,000 OF TENSION 22:00 - 00:00 2.00 CASING N STUC 3,700.00 INT1 PU MULTI STRING CUTTER FREE TORO @ 60 RPM=1K FT-LBS 5e):64;3t. PRESSURE UP TO 760 PSI BLEED PRESSURE, BEGIN TO ROTATE @ 80 RPM BRING PRESSURE UP TO 760 PSI CUT LINER ,fir` @ 30.40' �V BREAK DOWN BHA MULTI STRING CUTTER, XO,STABILIZER BLOW DOWN TOP DRIVE,LD 1 JT 5"DP 24 HR LOSSES TO WELL-315 BBLS S/ 12/7/2010 00:00 - 00:30 0.50 CASING N STUC 3,700.00 INT1 ,LD CUT JOINT OF 9-5/8"CASING -JOINT LENTGH-34.35' /f, -FLARE OD-9.75" _ ytfl 00:30 - 02:30 2.00 CASING N STUC 3,700.00 INT1 CUT&SLIP DRILL LINE ` PRE-JOB SAFETY MEETING INSPECT AND SERVICE TOP DRIVE CALIBRATE BLOCK HEIGHT 02:30 - 04:00 1.50 CASING N STUC 3,700.00 INT1 RIH W/HAI IRE JPTn■9-5/8"F7-DRII I RRIDGE PLUG ON 5"DP TO 1528'MD. -MAKE DUMMY RUN WITH RUNNING TOOL TO 60'. POOH. -PU BRIDGE PLUG&RIH TO 1528'MD 04:00 - 05:00 1.00 CASING N STUC 3,700.00 INT1 CIRCULATE BOTTOMS UP -MUD RETURNS VERY THICK AT SURFACE 05:00 - 06:30 1.50 CASING N STUC 3,700.00 INT1 CONT.TO RIH W/9-5/8"EZ-DRILL BRIDGE. PLUG TO 2,645'MD. -SET PLUG WITH 27 TURNS TO THE RIGHT AND SHEAR UP TO SET 06:30 - 07:00 0.50 CASING N STUC 3,700.00 INT1 CIRC.SURFACE TO SURFACE VOLUME -10 BPM,340 PSI. 07:00 - 08:00 1.00 CASING N STUC 3,700.00 INT1 POH WITH RUNNING TOOL. -LD RUNNING TOOL **KICK WHILE TRIPPING DRILL(D-1)** 08:00 - 08:30 0.50 CASING N STUC 3,700.00 INT1 CLEAR RIG FLOOR 08:30 - 09:00 0.50 CASING N STUC 3,700.00 INT1 PU BAKER MULTI-STRING CUTTER 09:00 - 10:30 1.50 CASING N STUC 3,700.00 INT1 RIH W/CSG CUTTER TO 2 590'Mn 10:30 - 11:30 1.00 CASING N STUC 3,700.00 INT1 CUT 9-5/8"CSG 01 2593' -PU 105K,SO 87K -LOCATE COLLAR @ 2,588' -ROTATE @ 80 RPM,STAGE PUMPS UP TO 220 GPM AND 630 PSI. OBSERVE PRESSURE DROP TO 380 PSI. CONT TO CUT&EXTEND FOR 15 MIN. -PU ABOVE CUT,SLACK OF TO LOCATE AND CONFIRM CUT W/10K DOWN. 11:30 - 12:00 0.50 CASING N STUC 3,700.00 INT1 POH,BLOW DOWN TOP DRIVE Printed 1/27/2011 5:47•32PM North America -ALASKA- BP Page 14 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 12:30 0.50 CASING N STUC 3,700.00 INT1 SERVICE RIG AND INSPECT TOP DRIVE 12:30 - 13:30 1.00 CASING N STUC 3,700.00 INT1 POH WITH CUTTER 2,574'TO 9' 13:30 - 16:00 2.50 CASING N STUC 3,700.00 INT1 BREAK OUT AND LAY DOWN STAB.,X-0,AND MULTI-STRING CUTTER. MAKE UP SPEAR ASSEMBLY. 16:00 - 16:30 0.50 CASING N STUC 3,700.00 INT1 RIH WITH SPEAR TO 41.5'.BREAK CIRC. 463 GPM @ 200 PSI. -PU TO 200 K,SO TO 150 K -PU TO 225 K,SO TO 100 K -PU TO 235 K.CSG CAME FREE PULL CSG TO FLOW LINE 16:30 - 18:30 2.00 CASING N STUC 3,700.00 INT1 CIR BTMS UP -STAGE PUMPS UP AS RETURNS ALLOWED -600 GPM @ 280 PSI -700 GPM @ 330 PSI -FLOWING CSG PRESSURE @ 700 GPM 290 PSI -SIMOPS MOVE CSG TOOLS TO FLOOR AND RU 18:30 - 19:30 1.00 CASING N STUC 3,700.00 INT1 LD 2 JNTS DP AND SPEAR WITH CUT CSG JOINT. CUT JOINT LENGTH 5.13' MONITOR WELL. -MW IN 9.2 PPG,MW OUT 9.2 PPG 19:30 - 00:00 4.50 CASING N STUC 3,700.00 INT1 LD 9-5/8"CSG FROM 2593'TO 650' -MW IN 9.2 PPG,MW OUT 9.2 PPG 12/8/2010 00:00 - 01:30 1.50 CASING N STUC 3,700.00 INT1 CONT.TO LD 9/58"CSG FROM 650'TO SURF. _ -CUT JOINT 5.53' 01:30 - 03:30 2.00 CASING N STUC 3,700.00 INT1 RIG DOWN 9-5/8"CSG TOOLS -CLEAR RIG FLOOR 03:30 - 04:30 1.00 CASING N. STUC 3,700.00 INT1 RIH W/5"DP&MULE SHOE TO 2,640'MD -TAG TOP OF PLUG @ 2,640'MD -LAY DOWN 1 JOINT DP -PU 100K,SO 90K,RPM 95,TQ 0 TO 2K. 04:30 - 06:00 1.50 CASING N STUC 3,700.00 INT1 RU CEMENTERS -BREAK CIRC.@ 6 BPM/140 PSI 06:00 - 06:30 0.50 CASING N STUC 3,700.00 INT1 CEMENT-PUMP KICK OFF PLUG -PUMP 5 BBLS OF 10.0 PPG MUD PUSH -PRESSURE TEST LINES TO 3,500 PSI -PUMP 20 BBLS OF 10 PPG MUD PUSH -PUMP 110 RRI S CI ASS G -PUMP 4 BBLS OF 10.0 PPG MUD PUSH 06:30 - 07:00 0.50 CASING N STUC 3,700.00 INT1 DISPLACE CEMENT W/26 BBLS 9.3 PPG DRILLPLEX MUD AT 8.0 BBUMIN AND 250 PSI. RD CEMENT HEAD&PU SINGLE FROM MOUSE HOLE. -CEMENT IN PLACE AT 06:35 ON 12/08/2010 V, • MENT JOB VOLUME: 110 BBLS 17.0 PPG CLASS G MIX;318 SACKS AT1.00UFT/ 2 07:00 - 07:30 0.50 CASING N STUC 3,700.00 INT1 -••. A 5" •_ • 2 MIN./ I ` '= ,• 8' TO 1,807' 07:30 - 08:00 0.50 CASING N STUC 3,700.00 INT1 INSERT FOAM BALL IN DP AND WASH DOWN FROM 1,807'TO 1,942' -877 GPM @ 650 PSI 08:00 - 09:00 1.00 CASING N STUC 3,700.00 INT1 CIRCULATE BOTTOMS UP @ 1,942' -ROT&RICP 35' -450 GPM @ 220 PSI&60 RPM Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 15 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE (DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (ft) 09:00 - 10:00 1.00 CASING N STUC 3,700.00 INT1 POOH WITH MULE SHOE 1,942'TO SURF. -LD MULE SHOE -MW IN-9.1 PPG;MW OUT-9.1 PPG 10:00 - 10:30 0.50 CASING N STUC 3,700.00 INT1 CLEAR RIG FLOOR DRAIN STACK 10:30 - 11:00 0.50 CASING N STUC 3,700.00 INT1 PULL WEAR BUSHING AND INSPECT -NO SIGNS OF CUTTING INSIDE WEAR BUSHING 11:00 - 12:00 1.00 CASING N STUC 3,700.00 INT1 LD MOUSEHOLE FUNCTION BLIND RAMS CHANGE OUT TOP RAMS "'"SPILL DRILL"" 12:00 - 13:00 1.00 CASING N STUC 3,700.00 INT1 LD MOUSEHOLE FUNCTION TOP RAMS 13:00 - 14:30 1.50 CASING N STUC 3,700.00 INT1 CHANGE OUT TOP RAMS FROM 9-5/8" CASING RAMS TO 3-1/2"X 6"VARIABLE 14:30 - 21:00 6.50 CASING N STUC 3,700.00 INT1 TEST BOPE -2,500 PSI HIGH,250 PSI LOW ON ANNULAR b PREVENTOR WITH 5"TEST JOINT -4,000 PSI HIGH,250 PSI LOW,5 MIN EACH -UPPER RAMS(3-1/2"X 6")WITH 5"TEST JOINT LOWER RAMS(2-7/8"X 5")WITH 4"& 5" TEST JOINT -BLIND SHEAR RAMS TEST MANUAL AND SUPER CHOKE TO 250 PSI LOW/2,500 PSI HIGH FOR 5 MIN -MANUAL IBOP ON TOP DRIVE -VALVES 1-14 TEST WITNESSED BY BP WSL BLAIR / NEUFELD&ZACH SAYERS,DOYON TP NICK ✓/ MARMON&HARRY GOCHENAUER. AOGCC WITNESS WAIVED BY CHUCK SCHEVE 21:00 - 22:00 1.00 CASING N STUC 3,700.00 INT1 PULL TEST PLUG INSTALL WEAR BUSHING BLOW DOWN CHOKE&KILL LINE 22:00 - 00:00 2.00 CASING N STUC 3,700.00 INT1 WAIT ON CEMENT CLEAR AN D CLEAN RIG FLOOR 12/9/2010 00:00 - 01:00 1.00 CASING N STUC 3,700.00 INT1 WOC CLEAN AND CLEAR RIG FLOOR 01:00 - 02:00 1.00 DRILL N STUC 3,700.00 INT1 PU BHA 02:00 - 04:00 2.00 DRILL N STUC 3,700.00 INT1 MU BHA#6 -12-1/4"HUGHES MXL-1X-SER#5177524 -8"SPERRY DRILL 4/5-5.3 STG 1.5 DEG MOTOR -NON MAG FLOAT SUB -NON MAG IBS -NON MAG X-O -NON MAG 8"DM COLLAR -NON MAG GAMMA/HCIM COLLAR -NON MAG POS PULSER -NON MAG ORIENATATION SUB UBHO -NON MAG FLEX COLLARS 04:00 - 04:30 0.50 DRILL N STUC 3,700.00 INT1 UPLOAD TO MWD 04:30 - 05:30 1.00 DRILL N STUC ' 3,700.00 INT1 PU AND MU JARS,&2 STANDS OF HWDP LD 3 JOINTS HWDP Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 16 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time:11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual©87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:30 - 06:30 1.00 DRILL N STUC 3,700.00 INT1 RIH WITH 5"DP FROM 292'TO 1,623'MD 06:30 - 07:00 0.50 DRILL N STUC 3,700.00 INT1 SERVICE RIG -INSPECT TOP DRIVE 07:00 - 08:00 1.00 DRILL N STUC 3,700.00 INT1 WASH DOWN 1,632'TO 1,953'MD -TAG TOP OF FIRM CEMENT @ 1,953' -PU 105K,SO 85K,ROT 95K. -430 GPM,@ 830 PSI AND 30 RPM. 08:00 - 20:00 12.00 DRILL N STUC 3,700.00 INT1 DRILL CEMENT 1,953'TO 2,342'.DIRECTIONAL DRILL 2,343 TO 2,570'MD z a, -KO POINT CALLED g z,i43' -PU 115K,SO 90K,ROT 97K. e ' -40 RPM,TQ ON 7K,TQ OFF 5K. 313 1. -680 GPM,1,960 PSI ON,1,810 PSI OFF. -WOB 30-35 20:00 - 23:30 3.50 DRILL N STUC 3,700.00 INT1 DISPLACE 9.1 DRILPLEX MUD WITH 8.8 LSND MUD. -SPOT CHECK DISPLACEMENT VOLUMES BY STRAPPING TANKS 23:30 - 00:00 0.50 DRILL N STUC 3,700.00 INT1 POOH TO CSG SHOE 2,570'MD TO 2,286'MD. -MW IN 8.8 PPG,MW OUT 8.8 PPG 12/10/2010 00:00 - 01:00 1.00 DRILL N STUC 3,700.00 INT1 RU GYRO TOOLS,SIMOPS CLEAN PITS AND CHANGE SHAKER SCREENS 01:00 - 01:30 0.50 DRILL N STUC 3,700.00 INT1 RIH 2,286'TO 2,570'MD -WASH LAST STAND DOWN -520 GPM,1,240 PSI _ 01:30 - 02:30 1.00 DRILL N STUC 3,700.00 INT1 DIRECTIONAL DRILL 2,570'TO 2,634'MD 02:30 - 05:30 3.00 DRILL N STUC 3,700.00 INT1 RIH AND RUN GYRO SURVEY ON E-LINE 05:30 - 12:00 6.50 DRILL N STUC 3,700.00 INT1 DRILL FROM 2,570'TO 3.265'MD -PUW 117K,SOW 98K, ROT 105K -700 GPM,1,780 PSI ON,1,650 PSI OFF -100 RPM,TQ 8K ON,5K OFF -WOB 20-25K -90'REAM AT CONNECTIONS -MUD WT IN 8.9 PPG;MW OUT 9.0 PPG AST-2.23;ART-1.07; ADT-3.39 ***UNANNOUNCED KICK WHILE DRILLING DRILL(D2)*** 12:00 - 00:00 12.00 DRILL N STUC 3,700.00 INT1 DRILL FROM 3,265'TO4,886'MD -PUW 125K,SOW 100K,ROT 105K -750 GPM,2,300 PSI ON,2,150 PSI OFF -100 RPM,TQ 6-7K ON,5K OFF -WOB 20K -MUD WT IN 9.3 PPG;MW OUT 9.4+PPG -90'REAM AT CONNECTIONS AST-1.05;ART-5.64; ADT-6.69 ***UNANNOUNCED KICK WHILE DRILLING DRILL(D2)*** 12/11/2010 00:00 - 10:00 10.00 DRILL N STUC 3,700.00 INT1 DIRECTIONALLY DRILL FROM4,886'TO 6,240' MD -PUW 139K,SOW 101K,ROT 120K -790 GPM,2,640 PSI ON,2,270 PSI OFF i •North America -ALASKA- BP Page 17 of 26 • Operation Summary Report Common Well Name:W-220 1AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C:(4,689,994.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:00 - 12:30 2.50 DRILL N STUC 3,700.00 INT1 CIRC.2.5 TIMES BOTTOMS UP -790 GPM,2240 PSI -100 RPM,TQ 7/8K OFF -MW IN 9.1 MW OUT 9.2 12:30 - 22:00 9.50 DRILL N STUC 3,700.00 INT1 BACK REAM OUT OF HOLE 6,240'10 3,334' MD -100 RPM,TQ 7/8K,790 GPM,1480 PSI. CONT. BACK REAM OUT OF HOLE 3,334'TO 2,342'MD -WORK THRU FORMATION AND CIRC OUT PIECES OF CLAY FORMATION -PLUGGING FLOWLINE -100 RPM,TQ 5K,790 GPM,1400 PSI PULL UP TO 2,254 INSIDE CSG 22:00 - 00:00 2.00 DRILL N STUC 3,700.00 INT1 CIRC. BOTTOMS UP.CIRC OUT CLAY FORMATION. -PUMP 20 PPB SWEEP OF NUT PLUG MED. -782 GPM,1850 PSI, -100 RPM,TQ 5/7 OFF BLOW DOWN TOP DRIVE, INSTALL SAFETY VALVE. 12/12/2010 00:00 - 00:30 0.50. DRILL N STUC 3,700.00 INT1 RIG SERVICE 00:30 - 03:30 3.00 DRILL N RREP INT1 RIG REPAIR C/O BRAKE BANDS 03:30 - 04:00 0.50 DRILL N STUC 3,700.00 INT1 CIRC AND COND.MUD -790 GPM, -80 RPM,TQ 5-7K 04:00 - 06:00 2.00 DRILL N STUC 3,700.00 INT1 RIH FROM 2,254'TO 6,184'MD -WIPE THRU TIGHT SPOT TWICE @ 2,952'MD -CONT TO RIH TO 6,184'MD 'WICK WHILE TRIPPING DRILL** 06:00 - 09:30 3.50 DRILL N STUC 3,700.00 INT1 WASH FROM 6,184'TO 6,240' -790 GPM,@ 2700 PSI -100 RPM,TQ 7/8K -WORK 90'SECTION 09:30 - 14:00 4.50 DRILL N STUC 3,700.00 INT1 BACK REAM 6,240'TO 2,286'MD -10 MIN FLOW CHECK-WELL STATIC -780 GPM,@ 2700 PSI -PU 135K,SO 101K,ROT 120K -100 RPM,TQ 7/8K -OPEN HOLE LOOKED CLEAN MW IN 9.2 PPG,MW OUT 9.2 PPG 14:00 - 15:00 1.00 DRILL N STUC 3,700.00 INT1 CIRCULATE AND CONDITION MUD -775 GPM @ 1950 PSI -100 RPM,TQ -BLOW DOWN TOP DRIVE MW IN 9.2 PPG,MW OUT 9.2 PPG 15:00 - 15:30 0.50 DRILL N STUC 3,700.00 INT1 POH FROM 2,286'TO 1,980'MD -TIGHT SPOT @ 1,980'. -P/U TOP DRIVE,AND ESTABLISH CIRC. 15:30 - 18:30 3.00 DRILL N STUC 3,700.00 INT1 BACK REAM 1,980'TO BHA @ 292' -770 GPM • 1450 PSI,60-100 RPM 18:30 - 21:00 2.50 DRILL N STUC 3,700.00 INT1 LD BHA#6 21:00 - 22:00 1.00 DRILL N STUC 3,700.00 INT1 CLEAR RIG FLOOR.SIMOPS DRAIN STACK Printed 1/27/2011 5:47.32PM North America -ALASKA- BP Page 18 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type:DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr (ft) 22:00 - 00:00 2.00 DRILL N STUC 3,700.00 INT1 CHANGE OUT TOP RAMS TO 9-5/8". -PULL MOUSE HOLE -CHANGE OUT TOP RAMS TO 9-5/8" PRESS TEST LOW 250 PSI,&HIGH 4,000 PSI **WITNESS WAIVED BY AOGCC REP(BOB NOBLE)** 12/13/2010 00:00 - 01:30 1.50 CASING N STUC 3,700.00 INT1 CONT.TO TEST 9-5/8"RAMS&RU TESCO PRESS TEST LOW 250 PSI,&HIGH 4,000 PSI OW **WITNESS WAIVED BY AOGCC REP(BOB NOBLE)** 01:30 - 02:00 0.50 CASING N STUC 3,700.00 INT1 PULL TEST PLUG,INSTALL WEAR RING 02:00 - 03:30 1.50 CASING N STUC 3,700.00 INT1 RIG UP`TESCO CSG TOOL 03:30 - 09:00 5.50 CASING N STUC 3,700.00 INT1 PU HUGHES FLOAT SHOE&RIH W 9-5/8"40LB/FT BTC L-80 LINER W/TORQUE RINGS. -FILL SHOE TRACK&TEST FLOATS -FILL EVERY JOINT,BREAK CIRC EVERY 10 JNTS: 09:00 - 09:30 0.50 CASING N STUC 3,700.00 INT1 CIRCULATE ONE ANNULAR VOLUME -STAGE PUMPS UP FROM 3 BPM TO 8 BPM -PU 125K, SO 112K, ROT 119K. -40 RPM,TQ 4-5K 09:30 - 18:30 9.00 CASING P INT1 RIH WITH 9-5/8"LINER: 9-5/8"HCT EZREAM SHOE JNT 9-5/8"JNT CSG 9-5/8"FLOAT COLLAR 9-5/8"JNT CSG 9-5/8"BAKER LANDING COLLAR 101 JNTS 9-5/8"CSG 9-5/8'X 13-3/8"BAKER FLEX LOCK LINER HANGER 9-5/8"X 9-5/8"BAKER DRILLABLE PACK OFF BUSHING 9-5/8"'X 13-3/8"ZXPN LINER TOP PACKER BAKER RUNNING TOOL RD TESCO TOOL&RIH W/DP&DC'S MAKE UP TOP DRIVE AND TAG TD • 6,240'. 18:30 - 21:00 2.50 CASING P INT1 CIRC.&COND -STAGE PUMP RATE UP: -3 BPM @ 270 PSI -4 BPM @ 320 PSI -5 BPM @ 370 PSI -6 BPM @ 430 PSI RECIPRICATE PIPE 20'WHILE PUMPING 21:00 - 00:00 3.00 CEMT P INT1 u ► _R -PUMP 5 BBLS 10.0 PPG MUD PUSH -PRESS TEST LINES TO 4,500 PSI -PUMP 45 BBLS 10.0 PPG MUD PUSH OP' -MIX&PUMP 65 BBLS CLASS G 11.0 LB/GAL LEAD @ 6-8 BPM letAIA -MIX&PUMP 282 BBLS CLASS G,15.8 LB/GAL TAIL @ 5-6 BPM •` -DROP DART 111 Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 19 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/14/2010 00:00 - 00:30 0.50 CEMT P INT1 DISPLACE CEMENT 9-5/8'40 LB/FT BTC L-80 LINER -DISPLACE WITH 5 BBLS FRESH WATER AND 329 BBLS 9.2 LSND MUD WITH RIG PUMPS. - RECIPROCATE PIPE WHILE DISPLACING. -LINER LANDED 12'OFF BTM @ 6,228' -BUMPED PLUG WITH 800 PSI WITH 3225 STKS. -PRESSURE UP TO 2,200 PSI FOR 5 MIN TO SET LINER HANGER. -BLED OFF PRESSURE-0.5 BBLS FLUID BACK -FLOATS HELD ***CEMENT IN PLACE @ 00:15 00:30 - 01:30 1.00 CEMT P INT1 RELEASE FROM LINER AND CIRCULATE -PRESS UP TO 3,900 PSI TO RELEASE RUNNING TOOL -PU TO CONFIRM RELEASE -BLOW DOWN CEMENT LINES. -PRESSURE UP W/TOP DRIVE TO 1,000 PSI. -P/U 10' AND SAW PRESS DROP. -PUMP @ 15 BPM TO CIRC TOP OF LINER PACKER -SAW APPROX 50 BBLS CEMENT STRUNG OUT WITH HIGHEST WEIGHT AT 12.0 PPG SET DOWN 85K AND SET LINER TOP PACKER 01:30 - 02:00 0.50 CEMT P INT1 LD SINGLE AND CEMENT HEAD. 02:00 - 03:00 1.00 CEMT P INT1 CIRC AND COND. MUD -580 GPM @ 360 PSI -RICIP.STRING 60' -MW 9.2 PPG IN,MW 9.2 PPG OUT 03:00 - 06:30 3.50 CEMT P INT1 POH W/5"DP,8"DC'S,AND RUNNING TOOL -RACK BACK 5"DRILLPIPE -LAY DOWN DRILL COLLARS 06:30 - 07:00 0.50 CEMT P INT1 MAKE SERVICE BREAKS ON LINER RUNNING TOOL CLEAN AND CLEAR RIG FLOOR 07:00 - 07:30 0.50 BOPSUR P INT1 RIG UP STACK CLEANER AND JET BOP STACK CLEAN BLOW DOWN CHOKE AND KILL LINES 07:30 - 09:30 2.00 BOPSUR P INT1 SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE AND BLOCKS ADJUST DRAW WORKS BRAKES 09:30 - 11:30 2.00 BOPSUR P INT1 DRAIN STACK AND PULL WEAR RING PULL MOUSEHOLE FOR RAM CHANGEOUT CLOSE BLIND/SHEAR RAMS CHANGE UPPER RAMS FROM 9-5/8"FIXED IQ 3-1/2"X 6"VARIABLES 11:30 - 13:30 2.00 BOPSUR P INT1 TEST 3-1/2"X 6"VBR WITH 4"AND 5"TEST JOINTS (3g-250 PSI LOW,4,000 PSI HIGH -5 MINUTES EACH TEST -CHART EACH TEST TEST ANNULAR WITH 4"TEST JOINT -250 PSI LOW,2,500 PSI HIGH -5 MINUTES EACH TEST -CHART EACH TEST TEST WAIVED BY AOGCC INSPECTOR BOB NOBLE 13:30 - 14:00 0.50 BOPSUR P INT1 INSTALL WEAR RING Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 20 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual©87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 14:30 0.50 CEMT P INT1 LUBRICATE RIG INSPECT TOP DRIVE,BLOCKS,AND DRAW WORKS 14:30 - 15:30 1.00 CEMT P INT1 MOBILIZE BHA#7 TO RIG FLOOR 15:30 - 16:30 1.00 CEMT P INT1 MAKE UP BHA#7 AS FOLLOWS: -8-3/4"HUGHES MXL-1 MILL TOOTH BIT -8-1/2"NEAR-BIT STABILIZER WITH FLOAT -1 STAND 6-1/2"NON-MAG FLEX COLLARS -1 JOINT 5"X 3"HWDP -DUAL ACTING HYDRAULIC JARS -1 JOINT 5"X 3"HWDP -4-1/2"IF X 4-1/2"REG DOUBLE-PIN CROSSOVER SUB -2 BOOT BASKETS -4-1/2"REG B X 4-1/2"IF B CROSSOVER SUB -4-1/2"IF P X 4"HT-38 B CROSSOVER SUB TOTAL BHA LENGTH:204.05' 16:30 - 19:00 2.50 CEMT P INT1 PICK UP AND RIH WITH 4"DRILLPIPE SINGLES FROM PIPE SHED FROM 204'TO 2,208'MD -TAG PACKOFF BUSHING AT 2,208'MD -9.1 PPG MUD WT 19:00 - 21:30 2.50 CEMT P INT1 LAY DOWN 1 JOINT 4"DRILLPIPE ON PIPE SKATE PICK UP 4'HT-38 PIN X 4-1/2"IF BOX CROSSOVER PICK UP ONE STAND 5"DRILLPIPE CIRCULATE AND CONDITION MUD -590 GPM,1,270 PSI INITIAL RATES -CEMENT CONTAMINATED MUD AT SURFACE -DRAGLINE TO ROCK WASHER UNABLE TO KEEP UP WITH CIRCUALTING RATE DROP CIRCULATING RATE AND CONTINUE TO CONDITION MUD -275 GPM,310 PSI -60 RPM,TQ 2K -CIRCULATE 2 BOTTOMS-UP DUE TO CEMENT CONTAMINATED MUD -FINAL CIRCULATING RATE 600 GPM,1,200 PSI 21:30 - 23:00 1.50 CEMT P INT1 DRILL OUT PACKOFF BUSHING -600 GPM,1320 PSI -60 RPM,TQ 2-5K -WOB 15-20K WORK BIT AND STABILIZER THROUGH AREA MULTIPLE TIMES -WITH AND WITHOUT ROTATION 23:00 - 00:00 1.00 CEMT P INT1 MOVE 5"DRILLPIPE IN DERRICK AND RACK BACK 1 STAND 5"DRILLPIPE CONTINUE TO RIH WITH 4"DRILLPIPE SINGLES FROM PIPE SHED FROM 2,208'TO 2,801'MD -9.1 PPG MUD WT 12/15/2010 00:00 - 03:30 3.50 CEMT P INT1 CONTINUE TO RIH WITH 4"DRILLPIPE SINGLES FROM PIPE SHED FROM 2,801'TO 6,100'MD -BREAK CIRCULATION AND FILL PIPE EVERY 2,000' -9.1 PPG MUD WT Printed 1/27/2011 5:47:32PM North America -ALASKA- BP 11111 Page 21 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.. DOYON 14 Spud Date/Time. 11/26/2010 12.00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 04:30 1.00 CEMT P INT1 CIRCULATE AND CONDITION MUD -ROTATE AND RECIPROCATE DRILLSTRING -575 GPM,2,130 PSI -60 RPM,TQ 5K 04:30 - 05:00 0.50 CEMT P INT1 RIG UP TO PRESSURE TEST 9-5/8"LINER AND LINER LAP 05:00 - 06:30 1.50 CEMT P INT1 PRESSURE TEST 9-5/8"LINER AND 9-5/8"X 13-3/8"LINER LAP -250 PSI LOW FOR 5 MINUTES -3,500 PSI HIGH FOR 30 MINUTES -CHART BOTH TESTS 06:30 - 07:00 0.50 CEMT P INT1 RIG DOWN TEST EQUIPMENT BLOW DOWN KILL LINE AND CEMENT LINE OBTAIN SLOW PUMP RATES 07:00 - 11:00 4.00 CEMT P INT1 CONTINUE RIH FROM 6,100'TO 6,140'MD -TAG CEMENT PLUGS ON TOP OF LANDING COLLAR OBTAIN DRILLING PARAMETERS AND DRILL OUT SHOETRACK TO 6,228'MD DRILL NEW FORMATION TO 6,260'MD -PUW 125K,SOW 76K, ROT 100K -600 GPM,2,330 PSI -100 RPM,TQ 7-10K _ -WOB 25-30K 11:00 - 11:30 0.50 CEMT P INT1 POOH TO 9-5/8"SHOE AT 6,228'MD RIG UP TO PERFORM LOT 11:30 - 12:30 1.00 CEMT P INT1 CLOSE UPPER VARIABLE RAMS PUMP DOWN KILL AND CEMENT LINES TO PERFORM LOT -9.1 PPG MUD WT IN HOLE -LEAKOFF OBSERVED AT 740 PSI SIRFACE PRESSURE !r0 -13.37 PPG EMW LOT RIG DOWN TEST EQUIPMENT 12:30 - 15:30 3.00 CEMT P INT1 RACK BACK 5"DRILLPIPE STAND CHANGE ELEVATORS TO 4" POOH FROM 6,100'TO 204'MD -9.2 PPG MUD WT 15:30 - 16:30 1.00 CEMT P INT1 LAY DOWN CROSSOVERS LAY DOWN AND EMPTY BOOT BASKETS -2 CUPS METAL RECOVERED FROM BOOT BASKETS RACK BACK HWDP AND FLEX COLLARS BREAK AND LAY DOWN BIT -BIT GRADE:2-1-WT-A-E-I-NO-BHA Printed 1/27/2011 5:47:32PM North America-ALASKA- BP Page 22 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date l From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:30 - 22:00 5.50 CEMT P INT1 MAKE UP BHA#8 AS FOLLOWS: -8-3/4"HYCALOG DTX619M-D2 C BIT -7"SPERRYDRILL 7/8 LOBE-6.0 STG MUD MOTOR 1.50 DEG BEND -NON-MAG FLOAT SUB -8.44"OD NON-MAG INTEGRAL BLADE STABILIZER -6-3/4"NON-MAG PCDC COLLAR -6-3/4"NON-MAG DGR/EWR-P4/PWD/HCIM -6-3/4"NON-MAG ALD/CTN COLLAR -6-3/4"NON-MAG POS PULSER -6-3/4"WELL COMMANDER CIRC SUB -1 STAND NON-MAG FLEX COLLARS -2 JOINTS 5"X 3"HWDP -6-1/4"DUAL ACTING HYDRAULIC JAR -3 JOINTS 5"X3"HWDP -4-1/2"IF PIN X 4"HT-38 BOX CROSSOVER TOTAL BHA LEGNTH:400.62' UPLOAD MWD DATA HOLD PJSM, CLEAR RIG FLOOR OF ALL NON-ESSENTIAL PERSONNEL,AND LOAD NUKE SOURCES 122:00 - 00:00 2.00 CEMT P INT1 RIH ON 4"DRILLPIPE FROM 401'TO 2,490'MD -PICK UP REMAINING SINGLES FROM PIPE SHED(15)FROM 401'TO 877'MD 12/16/2010 00:00 - 04:30 4.50 CEMT P INT1 CONTINUE TO RIH FROM 2,490'TO 6,202'MD -9.1 PPG MUD WT TAKING WEIGHT PERIODICALLY FROM 2,850' MD -PUSHING DEBRIS TO BOTTOM MU 4"HT-38 X 4-/12"IF CROSSOVER CHANGE ELEVATORS TO 5" RIH WITH 5"DRILLPIPE AND TAG TD AT 6,260' MD 04:30 - 05:30 1.00 CEMT P INT1 CIRCULATE BOTTOMS-UP -550 GPM,2,240 PSI -PUW 145K,SOW 70K,ROT 101K OBTAIN ECD BASELINE -650 GPM,2,920 PSI OBTAIN SPR FOR MUD PUMPS#1 AND#2 05:30 - 10:30 5.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 6,260' -TO 6,775'MD -PUW 137K,SCOW 75K,ROT 106K -650 GPM,2,800 PSI OFF,2,900 PSI ON -100 RPM,TQ 7K OFF,8K ON -WOB -MUD WT IN AND OUT 9.1 PPG -CALCULATED ECD:9.48,ACTUAL ECD:9.87 PPG ART 1.54,AST 0.92,ADT 2.46 10:30 - 11:30 1.00 DRILL P PROD1 TRIP OUT FROM 6,775'TO 6,679'MD -PULLING TIGHT AT 6,679'MD TOP DRIVE UP AND BACKREAM TO 6,200'MD -650 GPM,2,900 PSI -100 RPM,TQ 5K Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 23 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 12:30 1.00 DRILL P PROD1 CHANGE OUT ELEVATORS TO 4" FLOW CHECK WELL -NO FLOW RIH WITH REMAINING 4"DRILLPIPE FROM 6,200'TO 6,760'MD PICK UP ONE JOINT 4"DRILLPIPE AND CROSSOVER WASH DOWN FROM 6,760'TO 6,771'MD LAY DOWN 4"JOINT AND CROSSOVER CHANGE ELEVATORS TO 5" MAKE UP CROPSSOVER TO DRILLPIPE 12:30 - 00:00 11.50 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 6,771' TO 8,295'MD -PUW 160K,SOW 84K,ROT 116K -650 GPM,3,120 PSI OFF,3,450 PSI ON -100 RPM,TQ 8K OFF,9K ON -WOB 10-12k -MUD WT IN AND OUT 9.1 PPG -CALCULATED ECD:9.79,ACTUAL ECD: 10.68 PPG ART 4.05,AST 2.09,ADT 6.14 ADT FOR LAST 24 HRS:8.60 HELD D1 KICK WHILE TRIPPING DRILL 12/17/2010 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 8,295' TO 9,722'MD -PUW 190K,SOW 80K,ROT 125K -650 GPM,3,470 PSI OFF,3,800 PSI ON -100 RPM,TQ 12K OFF,13K ON -WOB 15k -MUD WT IN 9.1 PPG, OUT 9.2 PPG -CALCULATED ECD:9.83,ACTUAL ECD: 10.72 PPG ✓/ ART 4.86,AST 1.98,ADT 6.84 HELD UNANNOUNCED D2 KICK WHILE DRILLING DRILL -AAR AFTER DRILL COMPLETE 12:00 - 00:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 9,722' TO 11,118'MD -PUW 190K,SOW 80K, ROT 125K -650 GPM,3,470 PSI OFF,3,800 PSI ON -100 RPM,TQ 12K OFF,13K ON -WOB 15k -MUD WT IN AND OUT 9.2 PPG -CALCULATED ECD:9.88,ACTUAL ECD: 10.34 PPG ART 3.79,AST 2.25,ADT 6.04 ADT FOR LAST 24 HRS: 12.88 HELD SPILL DRILL Printed 1/27/2011 5:47:32PM • North America -ALASKA- BP Page 24 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/18/2010 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 11,118' TO 11,890'MD -PUW 225K,SOW 95K, ROT 142K -650 GPM,3,310 PSI OFF,3,560 PSI ON -90 RPM,TQ 15K OFF,18K ON -WOB 10K MUD WT IN AND OUT 9.1 PPG -CALCULATED ECD:9.63,ACTUAL ECD: 10.36 PPG ART 2.19,AST 3.74,ADT 5.93 HELD SPILL DRILL 12:00 - 15:00 3.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 11,890' 12,003'MD -PUW 225K,SOW 98K, ROT 148K -660 GPM,3,450 PSI OFF,3,550 PSI ON -90 RPM,TQ 17K OFF,18K ON -WOB 5K -MUD WT IN AND OUT 9.1 PPG -CALCULATED ECD:9.80,ACTUAL ECD: 10.23 PPG ART 0.92,AST 0.48,ADT 1.40 j ADT FOR LAST 24 HRS:7.33 WASHOUT IN FLUID END,#2 MUD PUMP -HAVE TO REPLACE FLUID END 15:00 - 00:00 9.00 DRILL N SFAL 12,003.00 PROD1 BACKREAM FROM 12,003'TO 8,096'MD -80 RPM,TQ 12-15K -425 GPM,1,750-1,900 PSI -PULL ON ELEVATORS WHEN GHOST ✓ REAMER PASSES 9-5/8"LINER SHOE -MUD WT IN 9.1 PPG,MUD WT OUT 9.2 PPG 12/19/2010 00:00 - 01:30 1.50 DRILL N SFAL 12,003.00 PROD1 BACKREAM FROM 8,096'TO 6,775'MD -80 RPM,TQ 12-15K -425 GPM,1,750-1,900 PSI -MUD WT IN 9.1 PPG,MUD WT OUT 9.2 PPG 01:30 - 02:00 0.50 DRILL N SFAL 12,003.00 PROD1 CHANGE ELEVATORS FROM 5"TO 4" POOH FROM 6,775 TO 6,202'MD -MUD WT 9.1 PPG -9-5/8"LINER SHOE AT 6,228'MD 02:00 - 03:30 1.50 DRILL N SFAL 12,003.00 PROD1 CIRCULATE BOTTOMS UP AT SHOE -430 GPM,1,500 PSI -MUD WT IN 9.1 PPG,MUD WT OUT 9.2-9.5 PPG -LARGE VOLUMES OF SAND OBSERVED AT THE SHAKERS 100 BBLS INTO CIRCULATION EXTENDED CIRCULATION TO 1.5X BOTTOMS UP -HOLE CLEANED UP AROUND 700 BBLS INTO CIRCULATION 03:30 - 06:30 3.00 DRILL P PROD1 RACK BACK ONE STAND 4"DRILLPIPE CHANGE ELEVATORS FROM 4"TO 5" RIH WITH ONE STAND 5"DRILLPIPE INSTALL 5"FLOOR VALVE,SET TOP DRIVE ON STUMP,AND HANG BLOCKS SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE, BLOCKS,AND CROWN 06:30 - 07:00 0.50 DRILL N SFAL 12,003.00 PROD1 RACK BACK ONE STAND 5"DRILLPIPE CHANGE OUT ELEVATORS FROM 5"TO 4" Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 25 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project:Prudhoe Bay Site: PB W Pad - Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 10:00 3.00 DRILL N SFAL 12,003.00 PROD1 RIH ON 4"DRILLPIPE FROM 6,202'TO 6,775' MD CHANGE ELEVATORS FROM 4"TO 5" RIH ON 5"DRILLPIPE FROM 6,775'TO 11,815' MD -MUD WT 9.2 PPG 10:00 - 12:00 2.00 DRILL N SFAL 12,003.00 PROD1 WASH DOWN LAST 2 STANDS FROM 11,815' TO 12,003'MD CIRCULATE BOTTOMS-UP AT TD ROTATE AND RECIPROCATE DRILLSTRING DURING CIRC -418 GPM,1790 PSI -80 RPM,TQ 17K -PUW 238K,SOW 92K,ROT 148 12:00 - 17:00 5.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 12,003' TO 12581'MD -PUW 242K,SOW 100K,ROT 150K -650 GPM,3,550 PSI OFF,3,940 PSI ON -90 RPM,TQ 19K OFF,20K ON -WOB 20K 70-) -MUD WT IN AND OUT 9.1 PPG -CALCULATED ECD:9.80,ACTUAL ECD: 10.23 PPG ART 1.50,AST 0.85,ADT 2.30 ADT FOR LAST 24 HRS:2.30 17:00 - 00:00 7.00 DRILL P PROD1 CIRCULATE OPENHOLE VOLUME AND BACKREAM FROM 12,581'TO 12,185'MD r -650 GPM,3,850 PSI -80 RPM,TQ 17K -MUD WT 9.2 PPG IN AND OUT MAD PASS FROM 12,185'TO 11,325'MD -300 FT/HR PULLING SPEED -650 GPM,3,650 PSI -80 RPM,TQ 15K -SURVEYS AT EVERY CONNECTION -SET DEPTH AT EVERY STAND 12/20/2010 00:00 - 01:30 1.50 DRILL P PROD1 CONTINUE TO MAD PASS FROM 11,325'TO 11,080'MD -300 FT/HR PULLING SPEED -650 GPM,3,650 PSI -80 RPM,TO 15K -SURVEYS AT EVERY CONNECTION -SET DEPTH AT EVERY STAND 01:30 - 03:00 1.50 DRILL P PROD1 BACKREAM FROM 11,080'TO 9,342'MD -650 GPM,3,400 PSI -80 RPM,TQ 10K -MUD WT 9.1 PPG IN,9.2 PPG OUT -STOP ROTATION WHEN GHOST REAMER PULLED THROUGH 9-5/8"LINER SHOE 03:00 - 04:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS-UP -650 GPM,3,290 PSI -80 RPM,TQ 13K -MUD WT IN 9.2 PPG,OUT 9.2 PPG 04:00 - 06:00 2.00 DRILL P PROD1 RIH FROM 9,342'TO 12,479'MD -MUD WT 9.2 PPG 06:00 - 06:30 0.50 DRILL P PROD1 WASH DOWN FROM 12,479'TO TD AT 12,581' MD Printed 1/27/2011 5:47:32PM North America -ALASKA- BP Page 26 of 26 Operation Summary Report Common Well Name:W-220 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 11/25/2010 End Date: X3-00W90-C: (4,689,994.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 - 09:30 3.00 DRILL P PROD1 CIRCULATE 3 BOTTOMS-UP -ROTATE AND RECIPROCATE DRILL STRING -650 GPM,3,700 PSI -80 RPM,TQ 15K -9.1 PPG MUD WT IN AND OUT 09:30 - 14:30 5.00 DRILL P PROD1 POOH ON ELEVATORS FROM 12,571'TO 6,809'MD -MUD WT 9.1 PPG CHANGE ELEVATORS FROM 5"TO 4" -DROPPED WELL COMMANDER BALL POOH FROM 6,809'TO 6,203'MD -MUD WT 9.1 PPG 14:30 - 15:00 0.50 DRILL P PROD1 ATTEMPTED TO PRESSURE UP AND OPEN CIRC SUB WITHOUT SUCCESS -TURN OFF PUMPS AND RECIPROCATE STRING ONE STROKE -PRESSURE UP AGAIN AND TOOL FUNCTIONED AT 2,200 PSI INCREASE RATE AND CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE DRILL STRING -710 GPM,2,300 PSI -80 RPM,TQ 10K 15:00 - 17:30 2.50 DRILL P PROD1 FLOW CHECK WELL -NO FLOW POOH ON ELEVATORS FROM 6,203'TO 2,396' MD -MUD WT 9.1 PPG -BIT DEPTH PLACES WELL COMMANDER 1/ CIRC SUB BELOW 9-5/8"LINER TOP 17:30 - 18:00 0.50 DRILL P PROD1 CIRCULATE BOTTOMS UP WHILE PULLING WELL COMMANDER CIRC SUB ACROSS 9-5/8" LINER TOP AND INTO 13-3/8"SURFACE CASING -850 GPM,1,250 PSI -60 RPM,TQ 5K -9.1 PPG MUD WT IN AND OUT 18:00 - 19:00 1.00 DRILL P PROD1 FLOW CHECK WELL -NO FLOW POOH ON ELEVATORS FROM 2,260'(BIT DEPTH)TO 400'MD -MUD WT 9.1 PPG 19:00 - 22:00 3.00 DRILL P PROD1 LAY DOWN BHA FROM HWDP TO MWD TOOLS DOWNLOAD MWD DATA BREAK BIT AND LAY DOWN LAY DOWN REMAINING BHA BIT GRADE: 1-3-BT-S-X-I-WT-TD 22:00 - 00:00 2.00 DRILL P -_ PROD1 CLEAN AND CLEAR RIG FLOOR OF ALL BHA AND DRILLING TOOLS Printed 1/27/2011 5:47:31PM North America-ALASKA- BP Page 1 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/21/2010 00:00 - 02:30 2.50 BOPSUR P RUNPRD PULL WEAR RING CLOSE BLIND/SHEAR RAMS CHANGE UPPER RAMS FROM 3-1/2"X 6"VRR TO 7"FIXED RAMS OPEN BLIND/SHEAR RAMS INSTALL TEST PLUG AND 7"TEST JOINT RIG UP AND TEST 7"FIXED RAMS CHART TEST -250 PSI LOW,4,000 PSI HIGH -5 MINUTES EACH TEST -TEST WITNESSED BY TOURPUSHER HARRY GOCHENAUER AND BP WSL FRANK ROACH -AOGCC INSPECTOR JOHN CRISP WAIVED WITNESS 02:30 - 04:00 1.50 CASING P RUNPRD RIG UP TO RUN 7"PRODUCTION CASING -CHANGE BALES ON TOP DRIVE -INSTALL FRANKS FILL-UP TOOL -MAKE UP 7"VAM TOP X 4-1/2"IF CROSSOVER TO FLOOR VALVE -PICK UP ELEVATORS AND SPIDERS -PICK UP SINGLE JOINT ELEVATORS -RIG UP DOYON CASING TORQUE TURN EQUIPMENT 04:00 - 04:30 0.50 CASING P RUNPRD MAKE UP 7"PRODUCTION CASING SHOETRACK -FLOAT SHOE -2 JTS 7"26#BTC CSG -FLOAT COLLAR -1 JT 7"26#BTC CSG -1 7"BTC PIN X VAM TOP HC CROSSOVER JOINT -BAKER-LOK ALL CONNECTIONS CHECK FLOATS -FLOATS HELD 04:30 - 17:00 12.50 CASING P RUNPRD RUN 7"26#L-80 VAM TOP HC PRODUCTION CASING FROM 159'TO 6.219'MD -TORQUE VAM TOP HC CONNECTIONS TO 11,950 FT-LBS(OPTIMUM) -USE JET LUBE SEAL GUARD ON VAM TOP HC CONNECTIONS -BREAK CIRCULATION EVERY 10 JOINTS -RECORD PU AND SO WEIGHTS EVERY 10 JOINTS 17:00 - 19:00 2.00 CASING P RUNPRD CIRCULATE 1.5X BOTTOMS-UP -STAGE UP PUMPS DURING CIRCULATION -150 GPM,35 PSI -220 GPM,460 PSI -350 GPM,780 PSI -NO LOSSES DURING CIRCULATION -PUW 135K,SOW 135K Printed 1/27/2011 5:47:16PM North America-ALASKA- BP Page 2 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor. DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 00:00 5.00 CASING P RUNPRD CONTINUE TO RUN 7"26#L-80 VAM TOP HC PRODUCTION CASING FROM 6,219'TO 8,595' MD -TORQUE VAM TOP HC CONNECTIONS TO 11,950 FT-LBS(OPTIMUM) -USE JET LUBE SEAL GUARD ON VAM TOP HC CONNECTIONS -BREAK CIRCULATION EVERY 10 JOINTS -RECORD PU AND SO WEIGHTS EVERY 10 JOINTS 12/22/2010 00:00 - 01:00 1.00 CASING P RUNPRD CONTINUE TO RUN 7"26#L-80 VAM TOP HC PRODUCTION CASING FROM 8,595'to 9,171' MD -TORQUE VAM TOP HC CONNECTIONS TO 11,950 FT-LBS(OPTIMUM) -USE JET LUBE SEAL GUARD ON VAM TOP HC CONNECTIONS -BREAK CIRCULATION EVERY 10 JOINTS -RECORD PU AND SO WEIGHTS EVERY 10 JOINTS START PUSHING FLUID AWAY -2 BBL PER 10 JTS -INCREASED DRAG NOTED(BEYOND 0.3 FF FROM I-CENTER BROOMSTICK PLOT) 01:00 - 01:30 0.50 CASING P RUNPRD CONTINUE TO RUN 7"26#L-80 VAM TOP HC PRODUCTION CASING FROM 9,171'TO 9,296' MD -CIRCULATE DOWN 3 JOINTS -190 GPM,650 PSI -TORQUE VAM TOP HC CONNECTIONS TO 11,950 FT-LBS(OPTIMUM) -USE JET LUBE SEAL GUARD ON VAM TOP HC CONNECTIONS -RECORD PU AND SO WEIGHTS AFTER 3RD JOINT CIRCULATED DOWN 01:30 - 05:30 4.00 CASING P RUNPRD CONTINUE TO RUN 7"26#L-80 VAM TOP HC PRODUCTION CASING FROM 9,296'TO 10,567' MD -TORQUE VAM TOP HC CONNECTIONS TO 11,950 FT-LBS(OPTIMUM) -USE JET LUBE SEAL GUARD ON VAM TOP HC CONNECTIONS -BREAK CIRCULATION EVERY 5 JOINTS -RECORD PU AND SO WEIGHTS EVERY 5 JOINTS -START TO PUSH FLUID AWAY AND NOTE INCREASED DRAG IN BOTH UP AND DOWN WEIGHTS 05:30 - 07:00 1.50 CASING P RUNPRD PUMP DOWN THE NEXT 5 JOINTS FROM 10,567'TO 10,691'MD -250 GPM,770 PSI -PUMP OPENHOLE VOLUME AND LINER VOLUME FROM 10,567'TO 9-5/8"LINER TOP AT 2,190'MD -MONITOR FOR LOSSES Printed 1/27/2011 5:47:16PM • North America -ALASKA- BP Page 3 of 14 • Operation Summary Report Common Well Name:W-220 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual©87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 12:00 5.00 CASING P RUNPRD CONTINUE TO RUN 7"26#L-80 VAM TOP HC PRODUCTION CASING FROM 10,691'TO 12,539'MD -TORQUE VAM TOP HC CONNECTIONS TO 11,950 FT-LBS(OPTIMUM) -USE JET LUBE SEAL GUARD ON VAM TOP HC CONNECTIONS -FILL CASING EVERY JOINT -BREAK CIRCULATION EVERY 5 JOINTS FROM 10,691'TO 11,140'MD -RECORD PU AND SO WEIGHTS EVERY 5 JOINTS FROM 10,691'TO 11,140'MD -BREAK CIRCULATION EVERY 10 JOINTS FROM 11,140'TO 12,539'MD RECORD PU AND SO WEIGHTS EVERY 10 JOINTS FROM 11,140'TO 12,539'MD PUW 242K,SOW 93K CIRC RATE 250 GPM @ 930 PSI 12:00 - 13:00 1.00 CASING P RUNPRD MAKE UP HANGER AND LANDING JOINT LAND CASING IN WELLHEAD MAKE UP CEMENT HEAD CROSSOVER AND CEMENT HEAD 13:00 - 16:30 3.50 CEMT P RUNPRD CIRCULATE AND CONDITION HOLE FOR CEMENT JOB -RECIPROCATE STRING WHILE CONDITIONING HOLE -STAGE UP PUMPS -3 BPM,520 PSI -6 BPM,720 PSI -8 BPM,870 PSI -PUW 265,SOW 95 HOLD CEMENTING PJSM WITH RIG CREW, SCHLUMBERGER CEMENTERS,AND CH2M HILL TRUCK CREWS WHILE CIRCULATING Printed 1/27/2011 5:47:16PM North America-ALASKA- BP Page 4 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type. COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:30 - 19:30 3.00 CEMT P RUNPRD CEMENT 7"PRODUCTION CASING WITH RECIPROCATION AS FOLLOWS: 16:10 HOLD PRE-JOB SAFETY MEETING WITH RIG CREW,SCHLUMBERGER CEMENT CREW AND CH2M HILL TRUCK DRIVERS 16:20 START BATCH MIXING 15.8 PPG G CEMENT -LIGHTCRETE LEAD MIX ON-THE-FLY 16:37 TAIL CEMENT TO WEIGHT it 16:41 PUMP 5 BBLS TO FLOOD CEMENT I LINES TO CEMENT HEAD 16:48 TEST LINES TO 4,100 PSI-GOOD 16:52 PUMP 20 BBL 10.0 PPG MUD PUSH II AT 5.0 BPM,500 PSI 16:55 START MIXING LEAD CEMENT 16:57 DROP BOTTOM PLUG.FLAG INDICATED PLUG DROPPED 16:58 PUMP 148.4 BBL 11.0 PPG LITECRETE LEAD CEMENT WITH GASBLOK AWAY AT 5.3 BPM -11.0 PPG LITECRETE WITH GASBLOK -5.3 BPM,400 PSI TREATING PRESSURE 17:28 SWAP TO TAIL CEMENT PUMP 43.0 BBLS 15.8 PPG CLASS G TAIL CEMENT WITH GASBLOK AWAY AT 5.0 BPM -15.8 PPG CLASS G WITH GASBLOK -5.0 BPM,180 PSI TREATING PRESSURE 17:38 STOP PUMPING CEMENT 17:40 DROP TOP PLUG FLAG INDICATED PLUG DROPPED 17:46 BEGIN DISPLACEMENT WITH RIG PUMP DISPLACE WITH 9.0 PPG BRINE -PUMP 6 BPM,450 PSI -PARK HANGER IN WELLHEAD PROFILE AS MUDPUSH, LEAD,AND TAIL ROUND SHOE ✓/ -RESUME RECIPROCATING 50 STROKES AFTER EACH FLUID MAKES TURN SLOW PUMP RATE TO 3.5 BPM AFTER 3,750 STROKES -930 PSI DISPLACEMENT PRESSURE PRIOR TO DROPPING RATE SLOW PUMP RATE TO 2 BPM AT 4,650 STROKES -1,040 PSI DISPLACEMENT PRESSURE PRIOR TO DROPPING RATE LAND HANGER ON PROFILE AT 4,700 STROKES .,a3 19:17 PLUG BUMP AT 4,732 STROKES(478 b BBL DISPLACED); -CALCULATED DISPLACEMENT WAS 478 BBLS CEMENT IN PLACE AT 19:17 HRS CEMENT PUMPED: -448 SX OF 11.0 PPG LITECRETE LEAD AT 1.86 CUFT/SK -206 SX OF 15.8 PPG CLASS G TAIL AT 1.17 CUFT/SK Printed 1/27/2011 5:47:16PM North America -ALASKA- BP Page 5 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C:(2,946,372.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:30 - 21:00 1.50 CEMT P RUNPRD ATTEMPT TO PRESSURE TEST CASING TO 250 PSI LOW,4,000 PSI HIGH -250 PSI TEST SUCCESSFUL -4,000 PSI TEST STOPPED AFTER LEAK OBSERVED AT LANDING JOINT X CEMENT HEAD CROSSOVER REMOVE CEMENT HEAD AND CROSSOVER INSTALL HEAD PIN AND LINE UP TO PRESSURE TEST AGAIN -250 PSI TEST SUCCESSFUL -4,000 PSI TEST STOPPED AFTER LEAK OBSERVED AT LANDING JOINT X HEAD PIN CONNECTION CLOSE ANNULAR PREVENTOR AND PRESSURE UP ON 7"X 13-3/8"ANNULUS TO ESTABLICH OA INJECTIVITY -3 BPM,PRESSURE BR (E OVER AT 1,190 PSI -INJECTED ADDITIONAL 4 BBLS AFTER PRESSURE BROKE OVER 21:00 - 22:00 1.00 CEMT P RUNPRD RIG DOWN CEMENTING AND CASING RUNNING TOOLS 22:00 - 00:00 2.00 WHSUR P RUNPRD SET 7"PACKOFF WITH RUNNING TOOL ON 5" DRILLPIPE STAND RILDS AND TORQUE TO SPEC PER FMC WELLHEAD TECHNICIAN CONTINUE CLEARING RIG FLOOR OF CASING RUNNING EQUIPMENT 12/23/2010 00:00 - 00:30 0.50 WHSUR P RUNPRD PRESSURE TEST PACKOFF TO 5,000 PSI FOR 15 MINUTES SIM-OPS WHILE PERFORMING PACKOFF TEST: FINISH REMOVING CASING RUNNING EQUIPMENT FROM RIG FLOOR 00:30 - 01:00 0.50 WHSUR P RUNPRD MOBILIZE BOP TESTING EQUIPMENT TO RIG FLOOR SIM-OPS:INJECT 2 BBLS MUD DOWN OA -1 BPM,600 PSI AT END OF INJECTION 01:00 - 02:00 1.00 BOPSUR P RUNPRD PULL MOUSEHOLE CLOSE BLIND/SHEARS AND BLEED KOOMEY UNIT CHANGE OUT UPPER RAMS FRO M 7"FIXED TO 3-1/2"X 6"VARIABLES 02:00 - 03:00 1.00 BOPSUR P RUNPRD INSTALL UPPER TEST PLUG ON 3-1/2"TEST JOINT RIG UP TO TEST BOPE SIM-OPS: INJECT 2 BBLS DOWN OA -1 BPM,850 PSI AT END OF INJECTION Printed 1/27/2011 5:47:16PM • North America -ALASKA- BP Page 6 of 14 • Operation Summary Report Common Well Name:W-220 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations hr) (ft) 03:00 - 12:00 9.00 BOPSUR P RUNPRD TEST BOPE PER AOGCC/BP REGS -CHART EACH TEST -5 MINUTES EACH TEST -TEST ANNULAR TO 250 PSI LOW,2,500 PSI HIGH, USING 3-1/2"TEST JOINT -TEST 2-7/8"X 5"VBR AND 3-1/2"X 6"VBR TO (kO 250 PSI LOW,4,000 PSI HIGH USING 3-1/2" AND 4"TEST JOINTS -TEST ALL CHOKE MANIFOLD VALVES, IBOP, MANUAL IBOP,4"HT-38 TIW AND DART VAVLES, HCR CHOKE AND KILL VALVES, MANUAL CHOKE AND KILL VALVES TO 250 PSI LOW,4,000 PSI HIGH TEST WITNESSED BY TOOLPUSHERS BOBBY INGRAM AND MIKE SMITH, BP WSL JOEY LEBLANC AND FRANK ROACH AOGCC INSPECTOR JEFF JONES WAIVED WITNESS SIM-OPS: INJECT 2 BBLS MUD DOWN OA AT 03:00,04:00,AND 05:00 -1 BPM EACH INJECTION 03:00-970 PSI AT END OF INJECTION -04:00-1,070 PSI AT END OF INJECTION -05:00-1,100 PSI AT END OF INJECTION 12:00 - 20:00 8.00 PERFOB P OTHCMP LAY DOWN 5"DRILLPIPE USING MOUSEHOLE SIM-OPS:RU LITTLE RED HOT OIL SERVICES FREEZE PROTECT OA WITH 242 BBLS DEAD CRUDE -2 BPM,1,300 PSI 20:00 - 22:00 2.00 PERFOB P ® OTHCMP SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE CROWN AND BLOCKS 22:00 - 00:00 2.00 PERFOB P ®_ OTHCMP CHANGE OUT TOP DRIVE SAVER SUB FROM 4-1/2"IF TO 4"HT-38 12/24/2010 00:00 - 01:00 1.00 PERFOB P OTHCMP FINISH CHANGING TOP DRIVE SAVER SUB FROM 4-1/2"IF TO 4"HT-38 SIM-OPS:LOAD ADDITIONAL 4"HT-38 DRILLPIPE IN PIPE SHED AND STRAP FOR UPCOMING TCP RUN 01:00 - 02:00 1.00 PERFOB P OTHCMP MOBILIZE SCHLUMBERGER TCP EQUIPMENT TO RIG FLOOR LOAD GUNS AND VERIFY RUNNING ORDER HOLD PJSM WITH CREW ON MAKING UP AND RUNNING GUNS 02:00 - 02:30 0.50 PERFOB P OTHCMP MAKE UP TCP BHA -9 ASSEMBLIES OF 4.5"AND 4.72"OD GUN CARRIERS -POWER JET 4505PJ CHARGES AT 5 SPF -PERF INTERVALS SEPARATED BY BLANK GUN CARRIERS WITH PUNCHER CHARGES FOR TRAPPED PRESSURE MITIGATION -E-FIRE FIRING HEAD -CROSSOVER FROM 2-7/8"EUE TO 3-1/2"IF 02:30 - 03:00 0.50 PERFOB P OTHCMP MAKE UP SPERRY MWD TOOLS TO LOG TCP ON DEPTH -DM WITH DGR TOOL -TM -3-1/2"IF PIN X 4"HT-38 BOX CROSSOVER Printed 1/27/2011 5:47:16PM North America -ALASKA- BP Page 7 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,943,372.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations hr) (ft) 03:00 - 04:00 1.00 PERFOB P OTHCMP RIH ON 4"DRILLPIPE,1X1 FROM PIPE SHED -RABBIT EACH JOINT -CLEAR DEBRIS FROM INSIDE JOINTS BEFORE MAKING UP TO DRILLSTRING RUN 10'DRILLPIPE PUP JOINT AFTER 2 STANDS 04:00 04:30 0.50 PERFOB P ■- OTHCMP SHALLOW TEST MWD =350 GPM,PUMP RATE 200-900 PSI -GOOD DETECTION FROM MWD TOOL 04:30 - 10:30 6.00 PERFOB P OTHCMP RIH ON 4"DRILLPIPE,1X1 FROM PIPE SHED -RABBIT EACH JOINT -CLEAR DEBRIS FROM INSIDE JOINTS BEFORE MAKING UP TO DRILLSTRING BRINE WEIGHT IN HOLE:9.0 PPG HOLD D1 KICK WHILE TRIPPING DRILL 10:30 - 15:00 4.50 PERFOB N HMAN OTHCMP DROP JOINT OF 4"DRILLPIPE OFF PIPE SKATE SHUT DOWN OPERATIONS AND INITIATE INVESTIGATION INVESTIGATION TEAM 15:00 - 18:30 3.50 PERFOB P OTHCMP _RIH WITH PERF GUNS ON 4"DRILLPIPE FROM DERRICK -9.0 PPG BRINE IN HOLE TAGE FLOAT COLLAR AT 12,489'MD -PUW 155K SOW 102K HOLD D1 KICK WHILE TRIPPING DRILL 18:30 - 00:00 5.50 PERFOB P OTHCMP BREAK CIRCULATION STAGE UP PUMPS TO LOGGING RATE -350 GPM,2,130 PSI CIRCULATE AND LOG FROM 12,289'MD -LOG GUNS ON DEPTH 12/25/2010 00:00 - 01:00 1.00 PERFOB P OTHCMP LOG TCP GUNS ON FIRING DEPTH -360 GPM,2,190 PSI -200 FT/HR PULLING SPEED -MARK PIPE AT FIRING DEPTH OPTAIN SLOW PUMP RATES PRIOR TO FIRING GUNS BLOW DOWN TOP DRIVE TO PREVENT FREEZING 01:00 - 02:30 1.50 PERFOB P OTHCMP RIG UP TO PRESSURE TEST CASING TEST 7"PRODUCTION CASING -250 PSI LOW FOR 5 MINUTES -4,000 PSI FOR 30 MINUTES -60 PSI LOST IN 1ST 15 MINUTES -10 PSI LOST IN 2ND 15 MINUTES Printed 1/27/2011 5 47 16PM North America -ALASKA- BP Page 8 of 14 • Operation Summary Report Common Well Name:W-220 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 - 07:00 4.50 PERFOB P OTHCMP FINAL LOG RECORDING TO CONFIRM GUNS ON DEPTH -LOG NOT MATCHING PREVIOUS RUN RIH AND TAG FLOAT COLLAR AT 12,492'MD OBTAIN PU AND SO WEIGHTS -PUW 175K,SOW 88K PICK UP UNTIL WEIGHT INDICATOR BREAKS OVER TO CALCULATE STRETCH -5.2'STRETCH LOG FROM 12,492'TO LOG GUNS ON DEPTH -360 GPM,2,190 PSI -200 FT/HR PULLING SPEED CONFIRM MWD LOG MATCHING REAL-TIME DRILLING MWD LOG SET GUNS ON DEPTH TO FIRE AT 12,294' BULLNOSE -TOP SHOT 12,010'MD 07:00 - 08:00 1.00 PERFOB P OTHCMP HOLD PJSM WITH RIG CREW AND SCHLUMBERGER TCP SPECIALISTS CLOSE UPPER PIPE RAMS AND LINE UP TO PUMP DOWN DRILLPIPE AND ANNULUS INITIATE E-FIRE PRESSURE SEQUENCE SURFACE INDICATION GUNS FIRED ON TIME MONITOR WELL FOR LOSSES -INITIAL LOSS 4 BBLS 08:00 - 09:30 1.50 PERFOB P OTHCMP POOH TO ABOVE TOP PERF AT 12,010'MD CIRCULATE BOTTOMS-UP -370 GPM,2,180 PSI FLOW CHECK AND MONITOR WELL FOR LOSSES -LOSS RATE 3 BBUHR CP DATA: ( r 4-1/2"POWERJET 4505;5 SPF;72 DEGREE PHASING OVER 3 INTERVALS 12,010'-12,050'MD;40'INTERVAL 12,154'-12,194'MD;40'INTERVAL 12,238'-12,294'MD;56'INTERVAL 09:30 - 19:00 9.50 PERFOB P OTHC = :Iv ►! ' ' •' POOH FROM 12,010'TO 319'MD -9.0 PPG BRINE IN HOLE -STATIC LOSSES AT 3 BBLJHR 19:00 - 20:00 1.00 PERFOB P ' OTHCMP LAY DOWN MWD LAY DOWN PERF GUNS -ALL GUNS FIRED CLEAN AND CLEAR RIG FLOOR 20:00 - 21:00 1.00 CLEAN P CLEAN PICK UP SWACO CLEANOUT ASSEMBLY -USED 6-1/8"ROCK BIT -2X MAGNOSTAR DEBRIS RECOVERY TOOLS -RIDGE BACK BURR MILL -RAZOR BACK HEAVY DUTY CASING CLEAN-UP TOOL -2X MAGNOSTAR DEBRIS RECOVERY TOLS -NC-38 PIN X HT-38 BOX CROSSOVER -DRILLPIPE PUP JOINT TOTAL BHA LENGTH:90.46' NOTE: BHA ARRIVED IN 3 ASSEMBLIES FOR EASE OF HANDLING Printed 1/27/2011 5:47:16PM North America -ALASKA- BP Page 9 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 00:00 3.00 CLEAN P CLEAN RIH WITH CLEANOUT BHA ON 4"DRILLPIPE FROM 91'TO 5,986'MD -9.0 PPG BRINE IN HOLE TOTAL LOSSES OVER LAST 24 HRS:30 BBLS 12/26/2010 00:00 - 04:00 4.00 CLEAN P CLEAN RIH WITH CLEANOUT BHA ON 4"DRILLPIPE FROM 5,986'TO 11,972'MD -9.0 PPG BRINE IN HOLE OBTAIN BHA PARAMETERS -NO PUMPS:PUW 180K;SOW 82K;AT 40 RPM,TQ 7.5K,ROT 122K;AT 50 RPM,TQ 8K, ROT 123K;AT 60 RPM,TQ 8-8.5K,ROT 124K -85 GPM,190 PSI;170 GPM,550 PSI;212 GPM,760 PSI;255 GPM,1,070 PSI AT 255 GPM:PUW 165K;SOW 85K 04:00 - 04:30 0.50 CLEAN P CLEAN RIH FROM 11,972'TO 12,488'MD -9.0 PPG BRINE IN HOLE -TAG FLOAT COLLAR AT 12,488'MD WITH 10K ON BIT PICK UP 50'ABOVE TAG TO 12,438'MD 04:30 - 05:30 1.00 CLEAN P CLEAN BREAK CIRCULATION AND STAGE UP PUMPS -255 GPM,1,140 PSI INCREASE ROTATION T040 RPM -TQ8K BACKREAM FROM 12,438'TO 12,356'MD INCREASE ROTATION TO 60 RPM -TQ8K BACKREAM FROM 12,356'to 11,972'MD ✓/ -270 GPM,1,250 PSI 05:30 06:30 1.00 CLEAN P CLEAN CIRCULATE SURFACE-TO-SURFACE -ROTATE AND RECIPROCATE DRILLSTRING -260 GPM,1,140 PSI -20 RPM,2K TQ 06:30 - 07:00 0.50 CLEAN P CLEAN RIH FROM 11,972'TO 12,432'MD 07:00 - 08:00 1.00 CLEAN P CLEAN BREAK CIRCULATION AND STAGE UP PUMPS BACKREAM FROM 12,432'to 11,972'MD -422 GPM,2,800 PSI -60 RPM,TQ 9K 08:00 - 09:00 1.00 CLEAN P CLEAN CIRCULATE BOTTOMS-UP -ROTATE AND RECIPROCATE DRILLSTRING -260 GPM,1,140 PSI -60 RPM,9K TQ MONITOR WELL BRINE WT IN AND OUT:9.0 PPG 09:00 - 21:00 12.00 CLEAN P ■- CLEAN POOH FROM 'TO 91' -LAY DOWN DRILLPIPE 1X 1X1 -9.0 PPG BRINE IN HOLE P-inted 1/27/2011 5 47:16PM North America -ALASKA- BP Page 10 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 23:00 2.00 CLEAN P CLEAN LAY DOWN CLEANOUT BHA CLEAN MAGNETS OF DEBRIS PRIOR TO LAYING DOWN -WEIGH METAL RECOVERED FROM EACH MAGNET(FROM TOP TO BOTTOM): -MAGNET#1:8.0 LBS -MAGNET#2: 15.8 LBS MAGNET#3:23.0 LBS -MAGNET#4:26.0 LBS TOTAL METAL RECOVERED FROM MAGNETS:72.8 LBS HELD UNANNOUNCED D1 KICK DRILL WHILE LAYING DOWN BHA HELD AAR AFTER DRILL TO DISCUSS LEARNINGS 23:00 - 00:00 1.00 CLEAN P CLEAN CLEAN AND CLEAR RIG FLOOR LAY DOWN REMAINING 7 STANDS 5" DRILLPIPE -USE MOUSEHOLE TO BREAK STANDS LOSSES FOR LAST 24 FIRS:68 BBLS LOSSES SINCE PERFORATING:98 BBLS 12/27/2010 00:00 - 00:30 0.50 CLEAN P ® CLEAN FINISH LAYING DOWN REMAINING 5" DRILLPIPE STANDS 00:30 - 01:30 1.00 CEMT P RUNPRD '•T S HL MBERG-R E-LINE UNIT AND WELLTEC HOLD PJSM WITH FLOORHANDS, SCHLUMBERGER E-LINE,AND WELLTEC PERSONNEL 01:30 - 02:00 0.50 CEMT P RUNPRD MOBILIZE E-LINE TOOLS AND WELLTEC TRACTOR TO RIG FLOOR RIG UP SHEAVE TO TOP DRIVE 02:00 - 03:00 1.00 CEMT P _ RUNPRD MAKE UP E-LINE TOOL STRING SURFACE TEST TOOLS 03:00 - 13:00 10.00 CEMT P RUNPRD ZERO TOOL DEPTH AT ROTARY TABLE RIH WITH USITASSFFABLY WITH TRACTOR tA5 -TRACTOR FROM 3,100'TO 11,600'MD LOG REPEAT PASS FROM 12,420'TO 11,100' C.bL MD LOG MAIN PASS FROM 12,420'TO 300'MD TOP OF CEMENT FIELD PICK:6.634'MD HELD FIRE DRILL AND"TABLE TOP"MAN DOWN DRILL WITH RIG CREWS WHILE LOGGING 13:00 - 14:30 1.50 CEMT P RUNPRD RIG DOWN USIT RIG UP 6.125"OD GAUGE RING AND JUNK BASKET ON WELLTEC TRACTOR -TRACTOR FROM 3,430'MD TO 11,600'MD 14:30 - 19:30 5.00 CLEAN P CLEAN RIH TO 12,432'WITH GAUGE RING/JUNK BASKET ASSEMBLY -TRACTOR FROM RECOVER 1 PIECE(1"X 1/2")COMPOSITE PERF GUN DEBRIS 19:30 - 21:00 1.50 CLEAN P ■ CLEAN RIG DOWN SCHLUMBERGER E-LINE TOOLS AND EQUIPMENT RIG DOWN WELLTEC EQUIPMENT Printed 1/27/2011 5:47.16PM North America-ALASKA- BP Page 11 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 00:00 3.00 RUNCOM P RUNCMP MOBILIZE COMPLETION RUNNING EQUIPMENT TO RIG FLOOR LOSSES FOR LAST 24 HRS: 16 BBLS LOSSES SINCE PERFORATING: 114 BBLS 12/28/2010 00:00 - 01:00 1.00 RUNCOM P RUNCMP RIG UP TO RUN 3-1/2"COMPLETION -CHANGE BALES AND ELEVATORS TO 3-1/2" -MOBILIZE AND RIG UP SCHLUMBERGER I-WIRE ON RIG FLOOR -MOBILIZE AND RIG UP DOYON CASING TORQUE TURN EQUIPMENT 01:00 - 02:30 1.50 WHSUR P RUNCMP DRAIN PULL WEAR RING BRING TUBING HANGER AND LANDING JOINT TO RIG FLOOR RIH WITH TUBING HANGER AND CONFIRM DEPTH OF UPPER WELLHEAD BOWL -MARK LANDING JOINT WHEN HANGER IS LANDED POOH AND LAY DOWN HANGER/LANDING JOINT IN PIPE SHED 02:30 - 09:00 6.50 RUNCOM P RUNCMP HOLD PJSM WITH RIG CREW, SCHLUMBERGER I-WIRE TECHS,DOYON CASING TECH,AND BAKER PACKER HAND RUN 3-1/2",9.2#, L-80,TC-II TUBING COMPLETION -TORQUE TURN ALL CONNECTIONS -BAKERLOK ALL CONNECTIONS BELOW FIRST PACKER -TERMINATE I-WIRE AT FIRST NDPG GAUGE -TEST I-WIRE CONDUCTIVITY -TIE I-WIRE TO ALL NDPG GAUGES -SPLICE I-WIRE THROUGH PACKERS ***SPILLL DRILL*** 09:00 - 12:00 3.00 RUNCOM P RUNCMP RIH WITH 3-1/2", 9.2#,TC-II TUBING TO 1,030' 12:00 - 00:00 12.00 RUNCOM P RUNCMP RIH WITH 3-1/2", 9.2#,TC-II TUBING FROM 1,030'TO 6,681'MD -CLAMP I-WIRE EVERY JT TO JOINT 100 - CLAMP I-WIRE EVERY OTHER JT AFTER JOINT 100 -TEST I-WIRE LINE EVERY 20 JTS ***UN-ANNOUNCED D1 KICK DRILL WITH AAR 12/29/2010 00:00 - 00:30 0.50 RUNCOM P -_ RUNCMP LUBRICATE RIG INSPECT TOP DRIVE 00:30 - 12:00 11.50 RUNCOM P RUNCMP RIH WITH 3-1/2", 9.2#,TC-II TUBING FROM 6,681'TO 12,355'MD - CLAMP I-WIRE EVERY OTHER JT AFTER JOINT 100 -CLAMP I-WIRE EVERY JT AFTER JOINT 356 -TEST I-WIRE LINE EVERY 20 JTS -RUN X-NIPPLE ASSEMBLY ***FIRE DRILL*** ***D-1 KICK WHILE TRIPPING DRILL*** 12:00 - 13:00 1.00 RUNCOM P RUNCMP PU E-LINE TOOLS TO RIG FLOOR Printed 1/27/2011 5:47:16PM North America -ALASKA- BP Page 12 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type: COM-ONSHORE (CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C:(2,946,372.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 17:00 4.00 RUNCOM P RUNCMP RU E-LINE AND PRESSURE CONTROL EQUIPMENT -XO TO 4-1/2"IF -XO TO 5-1/2"OTIS -PUMP IN SUB -WIRELINE VALVE(BOP) -40'LUBRICATOR DUAL PACKOFF 17:00 - 17:30 0.50 RUNCOM P RUNCMP TEST PRESSURE CONTROL EQUIPMENT AND LUBRICATOR -250 PSI LOW,2,200 PSI HIGH FOR 5 MIN EACH 17:30 - 21:00 3.50 RUNCOM N SFAL RUNCMP E-LINE PARTED FROM LOGGING TOOL AT WEAK POINT WHILE ATTEMPTING TO MOVE TOOL DOWN TUBING RIG DOWN E-LINE 21:00 - 00:00 3.00 RUNCOM N SFAL RUNCMP WAIT ON SLICK LINE UNIT FOR FISHING ***TABLE TOP H2S DRILL*** 12/30/2010 00:00 - 02:30 2.50 RUNCOM N SFAL RUNCMP STAGE SLICKLINE TOOLS IN PIPESHED PU SLICKLINE TOOLS TO RIG FLOOR SPOT SLICKLINE TRUCKS 02:30 - 09:00 6.50 RUNCOM N SFAL RUNCMP PRE-JOB SAFETY MEETING WITH SLICKLINE CREW RU SLICKLINE AND PRESSURE CONTROL EQUIPMENT -3-1/2"TIW -XO TO 4-1/2"IF XO TO 5-1/2"OTIS -PUMP IN SUB -WIRELINE VALVE(BOP) -65 LUBRICATOR DUAL PACKOFF 09:00 - 09:30 0.50 RUNCOM N SFAL RUNCMP TEST SLICKLINE PRESSURE CONTROL EQUIPMENT -250 PSI LOW,2,200 PSI HIGH FOR 5 MIN EACH ***SPILL DRILL*** 09:30 - 11:00 1.50 RUNCOM N SFAL RUNCMP DRAIN LUBRICATOR REMOVE 3-1/2"TIW VALVE INSTALL 4-1/2"TIW VALVE 11:00 - 11:30 0.50 RUNCOM N SFAL RUNCMP TEST SLICKLINE PRESSURE CONTROL EQUIPMENT -250 PSI LOW,2,200 PSI HIGH FOR 5 MIN EACH 11:30 - 13:00 1.50 RUNCOM N SFAL RUNCMP RIH WITH SLICKLINE TO RETRIEVE FISH -LATCH ONTO FISH 1�VITH OVERSHOT AT 3,345' POOH WITH FISH 13:00 - 22:00 9.00 RUNCOM N SFAL RUNCMP RD TRACTOR AND SLICKLINE TOOLS RD PRESSURE CONTROL EQUIPMENT LD TOOLS Printed 1/27/2011 5:47:16PM North America -ALASKA- BP Page 13 of 14 Operation Summary Report Common Well Name:W-220 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual @87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 00:00 2.00 RUNCOM N SFAL RUNCMP PU E-LINE TOOLS TO RIG FLOOR RU E-LINE AND PRESSURE CONTROL EQUIPMENT -XO TO 4-1/2"IF -4-1/2"TIW -XO TO 5-1/2"OTIS -PUMP IN SUB -WIRELINE VALVE(BOP) -40'LUBRICATOR -DUAL PACKOFF 12/31/2010 00:00 - 02:00 2.00 RUNCOM N SFAL RUNCMP RU E-LINE AND PRESSURE CONTROL EQUIPMENT -XO TO 4-1/2"IF -4-1/2"TIW -XO TO 5-1/2"OTIS -PUMP IN SUB -WIRELINE VALVE(BOP) -40'LUBRICATOR -DUAL PACKOFF 02:00 - 03:00 1.00 RUNCOM N SFAL RUNCMP TEST PRESSURE CONTROL EQUIPMENT AND LUBRICATOR -250 PSI LOW,2,200 PSI HIGH FOR 5 MIN EACH -PACKOFF BLEEDING FLUID -TEST FAILED 03:00 - 04:45 1.75 RUNCOM N SFAL RUNCMP DRAIN LUBRICATOR RD LOGGING TOOLS CHANGE OUT LUBRICATOR PACKOFF 04:45 - 05:15 0.50 RUNCOM N SFAL _ RUNCMP RU LOGGING TOOLS MU LUBRICATOR 05:15 - 06:00 0.75 RUNCOM P RUNCMP TEST PRESSURE CONTROL EQUIPMENT AND LUBRICATOR -250 PSI LOW,2,200 PSI HIGH FOR 5 MIN EACH 06:00 - 12:30 6.50 RUNCOM P RUNCMP RUN GAMMA RAY/CCL LOG ON E-LINE TO 12,330'MD ***FIRE DRILL*** ***TABLE TOP H2S DRILL*** 12:30 - 15:30 3.00 RUNCOM P ■- RUNCMP LD TOOLS AND REACTOR E-LINE RD E-LINE AND PRESSURE CONTROL EQUIPMENT 15:30 - 17:30 2.00 RUNCOM ■ RUNCMP SPACE OUT TUBING AND LAND TERMINATE I-WIRE AT TUBING HANGER RUN IN LOCK DOWN SCREWS 17:30 - 20:30 3.00 RUNCOM RUNCMP BULLHEAD 220 BBLS 9.0 PPG BRINE WITH CORROSION INHIBITOR DOWN IA -3 BPM,900 PSI BULLHEAD 95 BBLS 6.8 PPG DIESEL WITH LITTLE RED DOWN IA -3 BPM,1,150 PSI 20:30 - 22:00 1.50 RUNCOM P RUNCMP DROP HACPA BULLHEAD 8 BBLS DIESEL W/LITTLE RED BULLHEAD HACPA WITH 100 BBLS 9.5 PPG BRINE Printed 1/27/2011 5:47:16PM North America -ALASKA- BP Page 14 of 14 Operation Summary Report Common Well Name:W-220 1AFE No Event Type:COM-ONSHORE (CON) Start Date: 12/6/2010 End Date: 1/1/2011 X3-00W90-C: (2,946,372.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/26/2010 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:W-220 Actual©87.30ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 00:00 2.00 RUNCOM P RUNCMP SWAP BACK TO LITTLE RED INCREASE PRESSURE TO SET PACKERS -PUMP 1 BBL OF DIESEL TO SET PACKERS AT 4,200 PSI -HOLD FOR 10 MINUTES BLEED OFF PRESSURE TO REPAIR SMALL -LEAK -HARDLINE LEAK OCCURED WHILE :PRESSURING UP TEST TUBING TO 4,000 PSI FOR 30 MIN -TEST LOST 0 PSI IN THE 1ST 15 MIN,0 PSI IN THE 2ND 15 MIN FOR A TOTAL OF 0 PSI BLEED OFF PRESSURE AND SWAP TO IA TEST IA TO 250 PSI FOR 5 MIN,4,000 PSI FOR 30 MIN -TEST LOST 50 PSI IN THE 1ST 15 MIN,0 PSI IN THE 2ND 15 MIN FOR A TOTAL OF 50 PSI 1/1/2011 00:00 - 01:00 1.00 RUNCOM P RUNCMP TEST IA TO 250 PSI FOR 5 MIN 4 000 PSI FOR 30 MIN 0/ -TEST LOST 50 PSI IN THE 1ST 15 MIN,0 PSI IN THE 2ND 15 MIN FOR A TOTAL OF 50 PSI P‘ 01:00 - 02:00 1.00 RUNCOM P RUNCMP LD LANDING JOINT DRAIN STACK FMC INSTALL TWC 02:00 - 03:00 1.00 RUNCOM P RUNCMP TEST TWC FROM ABOVE TO 250 LOW/5,000 PSI HIGH FOR 5 MIN -GOOD TEST RD TEST EQUIPMENT 03:00 - 06:30 3.50 BOPSUR P RUNCMP BLOW DOWN LINES DRAIN STACK ND FLOW LINE,RISER,CHOKE LINE,AND STACK 06:30 - 07:00 0.50 WHSUR P RUNCMP MOVE TREE AND ADAPTER FLANGE INTO CELLAR 07:00 - 08:00 1.00 WHSUR P RUNCMP SCHLUMBERGER TERMINATE I-WIRE IN TUBING SPOOL ***SPILL DRILL*** 08:00 - 13:30 5.50 WHSUR P RUNCMP NU ADAPTER FLANGE AND STAB TREE FMC TEST ADAPTER FLANGE TO 5,000 PSI FOR 15 MIN 13:30 - 16:00 2.50 WHSUR P RUNCMP TEST TREE TO 250 PSI LOW,5,000 PSI HIGH SECURE WELL INSTALL VR PLUGS IN IA,TBG,AND OA VALVES 16:00 - 17:00 1.00 RIGD P RUNCMP REMOVE BOLTS FROM DIVERTER CLEAN AND CLEAR CELLAR 17:00 - 18:00 1.00 RIGD P RUNCMP PREP RIG FOR SKIDDING FLOOR REMOVE MUD LINES, STEAM LINES LD SMALL MOUSE HOLE RAISE GAS BUSTER LINE REMOVE FLARE LINE LD HAND RAILS RIG RELEASE AT 18:00 HRS ON 01/01/2011 • Printed 1/27/2011 5:47:16PM W-220, Well History Date Summary 12/29/10 ***CURRENTLY RIGGING UP SLICKLINE UNIT TO ASSIST DOYON 14 IN FISHING ELINE TOOLS& TRACTOR*** 12/30/10 ***DOYON 14 RIG JOB*** FISH E-LINE HEAD&WELLTEC TRACTOR FROM 3,345'SLM(ALL INTACT). ***E-LINE RIGGING UP ON DEPARTURE*** 01/01/11 T/I/O 0/50/20 Set(3)2" new style VR plugs in both I/A's and 0/A(1 1/4" head) Doyon 14 to RDMO. Page 1 of 1 North America - ALASKA - BP Prudhoe Bay PB W Pad W-220 W-220 Design: W-220 Survey Report - Geographic 22 December, 2010 • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore W-220 Survey Calculation Method: Minimum Curvature Design: W-220 Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB W Pad,TR-11-12 Site Position: Northing: 5,957,194.18ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.343 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 0.84 ° Well W-220 API No 500292343200 Well Position +N/-S 0.00 ft Northing: 5,959,910.74 ft Latitude: 70°17'57.914 N +E/-W 0.00 ft Easting: 612,048.91 ft Longitude: 149°5'33.100 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 53.40 ft Wellbore W-220 API No 500292343200 Magnetics Model Name ' Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2009 11/26/2010 21.74 80.90 57,694 Design W-220 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 2,303.51 Vertical Section: Depth From(TVD) +N/--S +E/-W Direction (ft) (ft) (ft) (°) 33.90 0.00 0.00 33.10 Survey Program Date: 12/22/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 77.00 1,300.00 Gyro(W-220PB1) GYD-GC-SS Gyrodata gyro single shots 1,367.23 2,303.51 MWD Run 400(W-220PB2) MWD+IFR+MS MWD+IFR+Multi Station 2,342.00 2,525.00 Gyro(W-220) GYD-GC-SS Gyrodata gyro single shots 2,619.31 6,190.45 MWD Run 600(W-220) MWD+IFR+MS MWD+IFR+Multi Station 6,260.17 12,534.01 MWD Run 800(W-220) MWD+IFR+MS MWD+IFR+Multi Station 12/22/2010 3:55:01PM Page 2 COMPASS 2003.16 Build 73 • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference:'. W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True li Wellbore: W-220 Survey Calculation Method: Minimum Curvature Design: W-220 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°), (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 33.90 0.00 0.00 33.90 0.00 0.00 5,959,910.74 612,048.91 70°17'57.914 N 149°5'33.100 W 77.00 0.38 177.24 77.00 -0.14 0.01 5,959,910.60 612,048.92 70°17'57.912 N 149°5'33.099 W 177.00 0.34 196.10 177.00 -0.76 -0.06 5,959,909.98 612,048.86 70°17'57.906 N 149°5'33.101 W 237.00 0.38 184.29 237.00 -1.13 -0.12 5,959,909.61 612,048.80 70°17'57.903 N 149°5'33.103 W 297.00 0.73 165.69 296.99 -1.70 -0.04 5,959,909.04 612,048.89 70°17'57.897 N 149°5 33.101 W 391.00 0.64 95.22 390.99 -2.33 0.63 5,959,908.42 612,049.57 70°17'57.891 N 149°5 33.081 W 419.00 0.81 83.61 418.99 -2.32 0.98 5,959,908.44 612,049.92 70° 17'57.891 N 149°5 33.071 W 451.00 1.04 74.49 450.98 -2.21 1.48 5,959,908.55 612,050.43 70° 17'57.892 N 149°5'33.056 W 480.00 1.54 73.39 479.97 -2.03 2.11 5,959,908.74 612,051.05 70° 17'57.894 N 149°5'33.038 W 540.00 1.57 54.44 539.95 -1.32 3.55 5,959,909.47 612,052.48 70°17'57.901 N 149°5'32.996 W 571.00 2.85 42.75 570.93 -0.51 4.42 5,959,910.29 612,053.34 70°17'57.909 N 149°5'32.971 W 619.00 3.30 32.52 618.86 1.53 5.97 5,959,912.36 612,054.86 70°17'57.929 N 149°5'32.926 W 667.00 5.85 22.24 666.70 4.96 7.64 5,959,915.81 612,056.48 70°17'57.963 N 149°5'32.877 W 701.00 7.67 19.75 700.47 8.70 9.06 5,959,919.57 612,057.84 70°17'57.999 N 149°5'32.835 W 732.00 8.64 20.95 731.15 12.82 10.60 5,959,923.72 612,059.31 70° 17'58.040 N 149°5'32.791 W 763.00 10.15 20.67 761.74 17.55 12.39 5,959,928.47 612,061.04 70°17'58.086 N 149°5'32.738 W 795.00 10.24 22.11 793.23 22.82 14.46 5,959,933.78 612,063.03 70°17'58.138 N 149°5'32.678 W 826.00 10.96 23.85 823.70 28.07 16.69 5,959,939.06 612,065.18 70°17'58.190 N 149°5'32.613 W 857.00 11.87 24.55 854.09 33.67 40.38 19.20 5,959,944.69 612,067.61 70°17'58.245 N 149°5'32.540 W 891.00 13.40 26.47 887.26 22.41 5,959,951.44 612,070.72 70°17'58.311 N 149°5'32.446 W 922.00 14.87 27.76 917.32 47.11 25.87 5,959,958.23 612,074.07 70°17'58.377 N 149°5'32.346 W 953.00 15.35 28.87 947.25 54.22 29.70 5,959,965.40 612,077.80 70°17'58.447 N 149°5'32.234 W 983.00 14.92 30.19 976.21 61.04 33.56 5,959,972.27 612,081.55 70° 17'58.514 N 149°5'32.121 W 1,014.00 15.48 32.71 1,006.13 67.97 37.80 5,959,979.26 612,085.69 70°17'58.582 N 149°5'31.998 W 1,045.00 16.65 33.09 1,035.92 75.17 42.46 5,959,986.53 612,090.24 70° 17'58.653 N 149°5'31.862 W 1,077.00 17.58 32.82 1,066.50 83.08 47.59 5,959,994.51 612,095.25 70° 17'58.731 N 149°5'31.712 W 1,110.00 16.95 34.78 1,098.01 91.21 53.03 5,960,002.73 612,100.57 70° 17'58.811 N 149°5'31.554 W 1,141.00 18.80 35.48 1,127.52 98.99 58.51 5,960,010.59 612,105.93 70°17'58.887 N 149°5'31.394 W 1,174.00 20.40 35.00 1,158.60 108.04 64.89 5,960,019.72 612,112.18 70° 17'58.976 N 149°5'31.208 W 1,205.00 22.30 35.35 1,187.47 117.26 71.40 5,960,029.04 612,118.54 70° 17'59.067 N 149°5'31.018 W 1,236.00 24.48 35.67 1,215.92 127.28 78.55 5,960,039.16 612,125.54 70° 17'59.165 N 149°5'30.810 W 1,269.00 26.02 35.71 1,245.77 138.71 86.76 5,960,050.72 612,133.58 70° 17'59.278 N 149°5'30.570 W 1,300.00 27.36 36.95 1,273.47 149.92 95.01 5,960,062.05 612,141.66 70°17'59.388 N 149°5'30.330 W 1,367.23 26.68 34.99 1,333.36 174.64 112.95 5,960,087.03 612,159.24 70°17'59.631 N 149°5'29.807 W 1,400.11 28.39 35.76 1,362.51 187.03 121.75 5,960,099.55 612,167.85 70°17'59.753 N 149°5'29.550 W 1,430.53 30.17 35.94 1,389.05 199.09 130.47 5,960,111.73 612,176.38 70°17'59.872 N 149°5'29.296 W 1,461.30 31.96 35.76 1,415.40 211.95 139.76 5,960,124.74 612,185.49 70°17'59.998 N 149°5'29.025 W 1,493.44 33.52 35.83 1,442.44 226.05 149.93 5,960,138.98 612,195.44 70°18'0.137 N 149°5'28.729 W 1,557.04 34.92 36.45 1,495.02 254.93 171.03 5,960,168.17 612,216.10 70°18'0.421 N 149°5'28.114 W 1,651.39 38.82 36.47 1,570.49 300.46 204.66 5,960,214.19 612,249.05 70°18'0.869 N 149°5'27.133 W 1,747.17 42.35 34.57 1,643.22 351.18 240.82 5,960,265.44 612,284.45 70°18'1.368 N 149°5'26.079 W 1,841.15 43.02 33.57 1,712.30 403.96 276.51 5,960,318.74 612,319.35 70°18'1.887 N 149°5'25.038 W 1,936.32 45.16 33.06 1,780.66 459.30 312.88 5,960,374.61 612,354.88 70°18'2.431 N 149°5'23.978 W 2,031.23 48.31 33.82 1,845.70 516.95 350.97 5,960,432.82 612,392.10 70°18'2.998 N 149°5'22.867 W 2,126.37 50.42 32.48 1,907.65 577.40 390.43 5,960,493.85 612,430.66 70°18'3.592 N 149°5'21.717 W 2,220.90 50.33 32.57 1,967.94 638.79 429.58 5,960,555.81 612,468.88 70°18'4.196 N 149°5'20.575 W 2,303.51 52.90 29.91 2,019.24 694.16 463.13 5,960,611.67 612,501.60 70°18'4.741 N 149°5'19.597 W I 2,342.00 55.45 29.88 2,041.77 721.21 478.69 5,960,638.95 612,516.75 70° 18'5.007 N 149°5'19.144 W 2,350.00 55.98 29.87 2,046.27 726.94 481.98 5,960,644.73 612,519.95 70° 18'5.063 N 149°5'19.048 W 2,400.00 55.93 29.48 2,074.26 762.94 502.49 5,960,681.02 612,539.93 70° 18'5.417 N 149°5'18.450 W 2,450.00 55.46 28.52 2,102.45 799.06 522.51 5,960,717.44 612,559.41 70° 18'5.772 N 149°5'17.866 W 2,500.00 54.93 27.88 2,130.98 835.24 541.91 5,960,753.90 612,578.26 70°18'6.128 N 149°5 17.300 W 2,525.00 54.68 27.88 2,145.39 853.30 551.47 5,960,772.10 612,587.55 70°18'6.306 N 149°5 17.021 W I 2,619.31 54.63 26.06 2,199.95 921.86 586.35 5,960,841.16 612,621.40 70°18'6.980 N 149°5'16.004 W 2,713.35 56.39 27.56 2,253.21 991.03 621.32 5,960,910.83 612,655.33 70°18'7.660 N 149°5'14.984 W 12/22/2010 3:55:01PM Page 3 COMPASS 2003.16 Build 73 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220 Survey Calculation Method: Minimum Curvature Design: W-220 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical_ Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°), (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 2,810.16 58.75 28.19 2,305.12 1,063.25 659.53 5,960,983.61 612,692.45 70°18'8.370 N 149°5'13.870 W 2,905.90 61.94 30.73 2,352.49 1,135.66 700.46 5,961,056.62 612,732.30 70°18'9.083 N 149°5'12.677 W 3,000.19 64.88 32.45 2,394.69 1,207.46 744.64 5,961,129.06 612,775.40 70°18'9.789 N 149°5'11.388 W 3,093.42 67.63 33.54 2,432.23 1,279.02 791.11 5,961,201.31 612,820.79 70°18'10.492 N 149°5'10.033 W 3,190.55 72.00 34.13 2,465.74 1,354.72 841.86 5,961,277.75 612,870.41 70°18'11.237 N 149°5 8.553 W 3,284.79 73.69 33.58 2,493.53 1,429.50 892.02 5,961,353.26 612,919.45 70°18'11.972 N 149°5 7.090 W 3,380.21 74.71 33.43 2,519.51 1,506.06 942.71 5,961,430.56 612,968.98 70°18'12.725 N 149°5 5.612 W 3,477.05 75.21 33.76 2,544.64 1,583.96 994.45 5,961,509.22 613,019.55 70°18'13.491 N 149°5'4.103 W 3,571.17 74.10 32.96 2,569.55 1,659.77 1,044.37 5,961,585.75 613,068.32 70° 18'14.237 N 149°5'2.647 W 3,666.56 72.23 32.29 2,597.17 1,736.66 1,093.59 5,961,663.36 613,116.39 70° 18'14.993 N 149°5'1.212 W 3,762.72 72.12 33.03 2,626.61 1,813.73 1,142.99 5,961,741.15 613,164.63 70°18'15.751 N 149°4'59.771 W 3,855.99 72.77 34.49 2,654.74 1,887.65 1,192.41 5,961,815.80 613,212.94 70°18'16.478 N 149°4'58.330 W 3,952.92 74.36 33.87 2,682.17 1,964.56 1,244.63 5,961,893.48 613,264.01 70°18'17.234 N 149°4'56.806 W 4,048.24 74.58 33.53 2,707.69 2,040.97 1,295.59 5,961,970.63 613,313.82 70°18'17.985 N 149°4'55.320 W 4,143.55 74.19 34.46 2,733.34 2,117.07 1,346.91 5,962,047.48 613,363.99 70°18'18.734 N 149°4'53.823 W 4,237.92 74.54 34.13 2,758.78 2,192.15 1,398.12 5,962,123.31 613,414.07 70°18'19.472 N 149°4'52.330 W 4,333.48 72.36 33.89 2,786.00 2,268.08 1,449.35 5,962,199.98 613,464.16 70°18'20.219 N 149°4'50.835 W 4,427.82 71.88 34.06 2,814.96 2,342.53 1,499.53 5,962,275.17 613,513.21 70°18'20.951 N 149°4'49.372 W 4,523.21 73.08 33.95 2,843.68 2,417.94 1,550.40 5,962,351.32 613,562.95 70°18'21.692 N 149°4'47.888 W 4,620.16 73.35 33.88 2,871.67 2,494.97 1,602.19 5,962,429.11 613,613.58 70°18'22.450 N 149°4'46.377 W 4,711.98 72.52 33.10 2,898.62 2,568.17 1,650.62 5,962,503.02 613,660.92 70°18'23.170 N 149°4'44.964 W 4,807.52 72.77 32.65 2,927.12 2,644.76 1,700.12 5,962,580.33 613,709.26 70°18'23.923 N 149°4'43.520 W 4,900.26 72.63 33.81 2,954.70 2,718.82 1,748.64 5,962,655.10 613,756.67 70°18'24.651 N 149°4'42.104 W 4,994.31 71.66 33.61 2,983.53 2,793.29 1,798.32 5,962,730.29 613,805.23 70°18'25.383 N 149°4'40.655 W 5,091.16 71.84 33.28 3,013.86 2,870.04 1,849.02 5,962,807.78 613,854.77 70°18'26.138 N 149°4'39.176 W 5,186.35 72.43 33.18 3,043.07 2,945.82 1,898.67 5,962,884.29 613,903.28 70°18'26.883 N 149°4'37.728 W 5,282.11 72.60 33.69 3,071.84 3,022.04 1,948.99 5,962,961.25 613,952.46 70°18'27.633 N 149°4'36.259 W 5,378.10 71.74 34.04 3,101.23 3,097.92 1,999.91 5,963,037.87 614,002.24 70°18'28.379 N 149°4'34.774 W 5,472.58 73.81 33.79 3,129.21 3,172.81 2,050.26 5,963,113.49 614,051.46 70°18'29.115 N 149°4'33.305 W 5,567.13 74.04 34.98 3,155.39 3,247.78 2,101.57 5,963,189.22 614,101.64 70°18'29.853 N 149°4'31.808 W 5,663.13 73.51 35.22 3,182.21 3,323.20 2,154.57 5,963,265.41 614,153.51 70°18'30.594 N 149°4'30.262 W 5,756.30 72.44 35.08 3,209.49 3,396.04 2,205.86 5,963,339.00 614,203.70 70° 18'31.310 N 149°4'28.765 W 5,851.29 73.20 34.33 3,237.55 3,470.64 2,257.52 5,963,414.36 614,254.24 70°18'32.044 N 149°4'27.258 W 5,946.14 72.62 34.58 3,265.42 3,545.40 2,308.82 5,963,489.87 614,304.41 70°18'32.779 N 149°4'25.761 W 6,041.38 72.72 33.77 3,293.79 3,620.62 2,359.89 5,963,565.83 614,354.35 70°18'33.519 N 149°4'24.271 W 6,135.82 72.98 33.00 3,321.64 3,695.97 2,409.54 5,963,641.90 614,402.87 70°18'34.260 N 149°4'22.822 W 6,190.45 73.47 32.73 3,337.41 3,739.90 2,437.93 5,963,686.25 614,430.59 70°18'34.692 N 149°4'21.993 W 6,260.17 72.50 33.85 3,357.81 3,795.63 2,474.52 5,963,742.51 614,466.35 70°18'35.239 N 149°4'20.926 W 6,354.50 72.53 32.83 3,386.15 3,870.79 2,523.96 5,963,818.40 614,514.66 70° 18'35.979 N 149°4'19.483 W 6,447.89 72.70 33.42 3,414.05 3,945.43 2,572.67 5,963,893.75 614,562.24 70°18'36.712 N 149°4'18.061 W 6,544.41 73.15 33.79 3,442.40 4,022.27 2,623.73 5,963,971.34 614,612.15 70°18'37.468 N 149°4'16.571 W 6,636.79 73.42 34.23 3,468.96 4,095.62 2,673.22 5,964,045.41 614,660.54 70°18'38.189 N 149°4'15.127 W 6,733.16 73.07 34.38 3,496.75 4,171.84 2,725.23 5,964,122.39 614,711.40 70°18'38.939 N 149°4'13.609 W 6,830.88 73.13 34.79 3,525.15 4,248.82 2,778.30 5,964,200.15 614,763.32 70°18'39.696 N 149°4'12.060 W 6,926.02 74.32 33.91 3,551.82 4,324.22 2,829.83 5,964,276.30 614,813.71 70°18'40.437 N 149°4'10.556 W 7,021.36 72.78 33.99 3,578.81 4,400.07 2,880.89 5,964,352.89 614,863.63 70°18'41.183 N 149°4'9.066 W 7,113.95 73.88 33.39 3,605.37 4,473.87 2,930.09 5,964,427.41 614,911.72 70°18'41.908 N 149°4'7.630 W 7,203.64 73.75 35.32 3,630.38 4,544.97 2,978.70 5,964,499.23 614,959.25 70°18'42.607 N 149°4'6.212 W 7,304.17 73.22 35.06 3,658.95 4,623.74 3,034.24 5,964,578.81 615,013.61 70°18'43.382 N 149°4'4.590 W 7,401.74 73.32 34.83 3,687.04 4,700.33 3,087.76 5,964,656.19 615,065.98 70°18'44.135 N 149°4'3.028 W 7,494.86 73.88 35.73 3,713.33 4,773.26 3,139.36 5,964,729.86 615,116.48 70°18'44.852 N 149°4'1.522 W 7,589.96 74.76 36.25 3,739.03 4,847.34 3,193.16 5,964,804.73 615,169.17 70°18'45.580 N 149°3'59.952 W 7,686.30 73.66 34.44 3,765.25 4,922.95 3,246.79 5,964,881.13 615,221.66 70°18'46.324 N 149°3'58.387 W 7,781.60 73.36 34.85 3,792.30 4,998.13 3,298.74 5,964,957.07 615,272.48 70°18'47.063 N 149°3'56.870 W 7,876.12 73.48 33.84 3,819.27 5,072.92 3,349.85 5,965,032.61 615,322.46 70°18'47.798 N 149°3'55.378 W 12/22/2010 3:55:01PM Page 4 COMPASS 2003.16 Build 73 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220 Survey Calculation Method: Minimum Curvature Design: W-220 Database: EDM.16-ANC Prod-WH24P Survey Measured! Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) C) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 7,971.65 73.16 33.35 3,846.69 5,149.15 3,400.48 5,965,109.57 615,371.95 70°18'48.548 N 149°3'53.900 W 8,067.15 73.87 32.68 3,873.79 5,225.93 3,450.38 5,965,187.09 615,420.69 70°18'49.303 N 149°3'52.444 W 8,161.91 73.05 32.34 3,900.77 5,302.54 3,499.20 5,965,264.41 615,468.36 70°18'50.056 N 149°3'51.018 W 8,256.79 73.22 32.98 3,928.30 5,378.98 3,548.20 5,965,341.56 615,516.21 70°18'50.807 N 149°3'49.588 W 8,352.01 72.23 32.70 3,956.57 5,455.37 3,597.51 5,965,418.68 615,564.37 70° 18'51.558 N 149°3'48.148 W 8,446.36 71.81 33.99 3,985.70 5,530.34 3,646.83 5,965,494.36 615,612.57 70° 18'52.296 N 149°3'46.708 W 8,540.57 72.71 34.06 4,014.40 5,604.71 3,697.04 5,965,569.47 615,661.66 70° 18'53.027 N 149°3'45.242 W 8,635.28 73.35 33.66 4,042.05 5,679.93 3,747.51 5,965,645.43 615,711.00 70° 18'53.766 N 149°3'43.769 W 8,730.50 73.92 33.19 4,068.88 5,756.18 3,797.84 5,965,722.41 615,760.18 70° 18'54.516 N 149°3'42.300 W 8,825.12 73.57 33.26 4,095.36 5,832.17 3,847.61 5,965,799.13 615,808.80 70° 18'55.263 N 149°3'40.846 W 8,920.97 72.71 33.34 4,123.16 5,908.84 3,897.97 5,965,876.53 615,858.01 70°18'56.017 N 149°3'39.376 W 9,016.35 73.08 31.68 4,151.22 5,985.71 3,946.96 5,965,954.12 615,905.85 70°18'56.773 N 149°3'37.945 W 9,111.59 72.83 32.11 4,179.13 6,063.02 3,995.07 5,966,032.13 615,952.80 70°18'57.533 N 149°3'36.541 W 9,199.80 74.12 31.71 4,204.22 6,134.80 4,039.77 5,966,104.57 615,996.42 70°18'58.238 N 149°3'35.235 W 9,301.76 73.68 31.90 4,232.50 6,218.06 4,091.40 5,966,188.57 616,046.79 70°18'59.057 N 149°3'33.728 W 9,397.06 74.07 32.01 4,258.97 6,295.73 4,139.85 5,966,266.96 616,094.08 70°18'59.821 N 149°3'32.313 W 9,492.41 74.38 32.18 4,284.89 6,373.47 4,188.61 5,966,345.40 616,141.66 70°19'0.585 N 149°3'30.889 W 9,587.53 74.17 31.99 4,310.67 6,451.04 4,237.24 5,966,423.69 616,189.13 70°19'1.347 N 149°3'29.469 W 9,682.48 73.68 32.26 4,336.96 6,528.31 4,285.76 5,966,501.67 616,236.49 70°19'2.107 N 149°3'28.052 W 9,778.42 72.85 32.18 4,364.58 6,606.04 4,334.74 5,966,580.11 616,284.30 70°19'2.871 N 149°3'26.621 W 9,873.93 73.49 32.99 4,392.24 6,683.07 4,383.98 5,966,657.85 616,332.38 70°19'3.629 N 149°3'25.183 W 9,968.50 74.24 33.49 4,418.52 6,759.05 4,433.77 5,966,734.56 616,381.03 70°19'4.376 N 149°3'23.729 W 10,062.79 73.61 33.70 4,444.63 6,834.51 4,483.91 5,966,810.76 616,430.03 70°19'5.118 N 149°3'22.265 W 10,158.90 74.96 34.55 4,470.66 6,911.10 4,535.81 5,966,888.11 616,480.78 70°19'5.870 N 149°3'20.749 W 10,253.31 74.66 33.88 4,495.40 6,986.44 4,587.04 5,966,964.20 616,530.88 70°19'6.611 N 149°3'19.253 W 10,349.03 74.27 33.98 4,521.03 7,062.96 4,638.52 5,967,041.47 616,581.21 70°19'7.363 N 149°3'17.750 W 10,444.37 73.88 34.49 4,547.19 7,138.76 4,690.10 5,967,118.02 616,631.64 70°19'8.108 N 149°3'16.243 W 10,539.30 73.56 33.95 4,573.80 7,214.10 4,741.34 5,967,194.12 616,681.76 70°19'8.849 N 149°3'14.746 W 10,634.34 72.91 33.65 4,601.22 7,289.72 4,791.96 5,967,270.48 616,731.24 70° 19'9.593 N 149°3'13.268 W 10,729.13 72.45 33.83 4,629.44 7,364.97 4,842.22 5,967,346.46 616,780.37 70° 19'10.332 N 149°3'11.800 W 10,824.21 71.21 31.35 4,659.09 7,441.08 4,890.88 5,967,423.27 616,827.89 70°19'11.080 N 149°3'10.378 W 10,920.26 69.26 30.24 4,691.57 7,518.71 4,937.16 5,967,501.59 616,873.00 70° 19'11.844 N 149°3'9.026 W 11,015.19 67.74 27.37 4,726.37 7,596.09 4,979.72 5,967,579.58 616,914.40 70°19'12.604 N 149°3'7.783 W 11,110.63 66.00 25.69 4,763.86 7,674.61 5,018.93 5,967,658.67 616,952.42 70°19'13.376 N 149°3'6.637 W 11,204.30 64.56 23.70 4,803.03 7,751.90 5,054.48 5,967,736.48 616,986.82 70°19'14.136 N 149°3'5.598 W 11,299.49 63.02 20.69 4,845.08 7,830.96 5,086.75 5,967,816.00 617,017.90 70°19'14.914 N 149°3'4.655 W 11,394.28 62.57 17.36 4,888.43 7,910.64 5,114.23 5,967,896.07 617,044.19 70°19'15.697 N 149°3'3.852 W 11,488.63 60.27 14.24 4,933.57 7,990.33 5,136.81 5,967,976.09 617,065.57 70°19' 16.481 N 149°3'3.191 W 11,584.18 56.96 12.19 4,983.32 8,069.72 5,155.48 5,968,055.74 617,083.06 70°19' 17.261 N 149°3'2.645 W 11,678.73 55.23 9.41 5,036.07 8,146.78 5,170.20 5,968,133.01 617,096.62 70°19' 18.019 N 149°3'2.214 W 11,774.47 54.93 6.17 5,090.89 8,224.54 5,180.84 5,968,210.91 617,106.10 70°19' 18.784 N 149°3'1.901 W 11,870.15 54.03 2.83 5,146.48 8,302.16 5,186.96 5,968,288.60 617,111.07 70°19'19.547 N 149°3'1.721 W 1.1,964.12 52.94 0.22 5,202.41 8,377.64 5,188.98 5,968,364.10 617,111.96 70°19'20.290 N 149°3'1.661 W 12,058.35 53.57 0.80 5,258.78 8,453.15 5,189.66 5,968,439.60 617,111.51 70°19'21.032 N 149°3'1.639 W 12,154.55 53.92 0.71 5,315.67 8,530.71 5,190.68 5,968,517.17 617,111.38 70°19'21.795 N 149°3'1.608 W 12,249.50 53.35 0.44 5,371.97 8,607.17 5,191.45 5,968,593.62 617,111.00 70°19'22.547 N 149°3'1.584 W 12,345.74 52.75 359.99 5,429.82 8,684.08 5,191.74 5,968,670.52 617,110.15 70°19'23.303 N 149°3'1.574 W 12,438.50 52.17 359.14 5,486.34 8,757.63 5,191.18 5,968,744.04 617,108.49 70°19'24.027 N 149°3'1.589 W 12,534.01 51.29 358.74 5,545.50 8,832.60 5,189.80 5,968,818.98 617,105.99 70° 19'24.764 N 149°3'1.628 W 12,581.00 51.29 358.74 5,574.88 8,869.26 5,188.99 5,968,855.62 617,104.64 70°19'25.125 N 149°3'1.651 W 12/22/2010 3:55:01PM Page 5 COMPASS 2003.16 Build 73 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220 Survey Calculation Method: Minimum Curvature Design: W-220 Database: EDM.16-ANC Prod-WH24P 2,342.00 2,041.77 13 3/8" 13.375 16.000 6,228.00 3,348.25 9 5/8" 9.625 12.250 Checked By: Approved By: Date: 12/22/2010 3:55:01PM Page 6 COMPASS 2003.16 Build 73 North America - ALASKA - BP Prudhoe Bay PB W Pad W-220 W-220PB1 Design: W-220PB1 Survey Report - Geographic 29 November, 2010 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220PB1 Survey Calculation Method: Minimum Curvature Design: W-220PB1 Database: EDM.16-Anc Prod-WH24P Project Prudhoe Bay,GPB, PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB W Pad,TR-11-12 — — Site Position: Northing: 5,957,194.18ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.343 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 0.84 ° Well W-220 API No 500292343200 Well Position +N/-S 0.00 ft Northing: 5,959,910.74 ft Latitude: 70°17'57.914 N +E/-W 0.00 ft Easting: 612,048.91 ft Longitude: 149°5 33.100 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 53.40 ft Wellbore W-220PB1 API No 500292343270 Magnetics Model Name Sample Date Declination Dip Angle Field Strength °) (°) ( (nT) BGGM2009 11/26/2010 21.74 80.90 57,694 Design W-220PB1 Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 33.90 Vertical Section: Depth From(ND) +N/-S +E/-W Direction (ft) (ft) (ft) (°)' 33.90 0.00 0.00 33.00 Survey Program Date: 11/29/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 77.00 1,331.00 Gyro(W-220PB1) GYD-GC-SS Gyrodata gyro single shots 1 1,368.62 1,368.62 MWD Run 300(W-220PB1) MWD+IFR+MS MWD+IFR+Multi Station 11/29/2010 2:09:12PM Page 2 COMPASS 2003.16 Build 73 • Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220PB1 Survey Calculation Method: Minimum Curvature Design: W-220PB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 33.90 0.00 0.00 33.90 0.00 0.00 5,959,910.74 612,048.91 70°17'57.914 N 149°5 33.100 W 77.00 0.38 177.24 77.00 -0.14 0.01 5,959,910.60 612,048.92 70°17'57.912 N 149°5'33.099 W 177.00 0.34 196.10 177.00 -0.76 -0.06 5,959,909.98 612,048.86 70° 17'57.906 N 149°5'33.101 W 237.00 0.38 184.29 237.00 -1.13 -0.12 5,959,909.61 612,048.80 70°17'57.903 N 149°5'33.103 W 297.00 0.73 165.69 296.99 -1.70 -0.04 5,959,909.04 612,048.89 70°17'57.897 N 149°5'33.101 W 391.00 0.64 95.22 390.99 -2.33 0.63 5,959,908.42 612,049.57 70°17'57.891 N 149°5'33.081 W 419.00 0.81 83.61 418.99 -2.32 0.98 5,959,908.44 612,049.92 70°17'57.891 N 149°5 33.071 W 451.00 1.04 74.49 450.98 -2.21 1.48 5,959,908.55 612,050.43 70° 17'57.892 N 149°5'33.056 W 480.00 1.54 73.39 479.97 -2.03 2.11 5,959,908.74 612,051.05 70°17'57.894 N 149°5'33.038 W 540.00 1.57 54.44 539.95 -1.32 3.55 5,959,909.47 612,052.48 70°17'57.901 N 149°5'32.996 W 571.00 2.85 42.75 570.93 -0.51 4.42 5,959,910.29 612,053.34 70°17'57.909 N 149°5'32.971 W 619.00 3.30 32.52 618.86 1.53 5.97 5,959,912.36 612,054.86 70°17'57.929 N 149°5'32.926 W 667.00 5.85 22.24 666.70 4.96 7.64 5,959,915.81 612,056.48 70°17'57.963 N 149°5 32.877 W 701.00 7.67 19.75 700.47 8.70 9.06 5,959,919.57 612,057.84 70°17'57.999 N 149°5'32.835 W 732.00 8.64 20.95 731.15 12.82 10.60 5,959,923.72 612,059.31 70°17'58.040 N 149°5'32.791 W 763.00 10.15 20.67 761.74 17.55 12.39 5,959,928.47 612,061.04 70°17'58.086 N 149°5'32.738 W 795.00 10.24 22.11 793.23 22.82 14.46 5,959,933.78 612,063.03 70°17'58.138 N 149°5'32.678 W 826.00 10.96 23.85 823.70 28.07 16.69 5,959,939.06 612,065.18 70°17'58.190 N 149°5'32.613 W 857.00 11.87 24.55 854.09 33.67 19.20 5,959,944.69 612,067.61 70°17'58.245 N 149°5'32.540 W 891.00 13.40 26.47 887.26 40.38 22.41 5,959,951.44 612,070.72 70°17'58.311 N 149°5'32.446 W 922.00 14.87 27.76 917.32 47.11 25.87 5,959,958.23 612,074.07 70°17'58.377 N 149°5'32.346 W 953.00 15.35 28.87 947.25 54.22 29.70 5,959,965.40 612,077.80 70°17'58.447 N 149°5'32.234 W 983.00 14.92 30.19 976.21 61.04 33.56 5,959,972.27 612,081.55 70°17'58.514 N 149°5'32.121 W 1,014.00 15.48 32.71 1,006.13 67.97 37.80 5,959,979.26 612,085.69 70°17'58.582 N 149°5'31.998 W 1,045.00 16.65 33.09 1,035.92 75.17 42.46 5,959,986.53 612,090.24 70°17'58.653 N 149°5'31.862 W 1,077.00 17.58 32.82 1,066.50 83.08 47.59 5,959,994.51 612,095.25 70°17'58.731 N 149°5'31.712 W 1,110.00 16.95 34.78 1,098.01 91.21 53.03 5,960,002.73 612,100.57 70° 17'58.811 N 149°5'31.554 W 1,141.00 18.80 35.48 1,127.52 98.99 58.51 5,960,010.59 612,105.93 70° 17'58.887 N 149°5'31.394 W 1,174.00 20.40 35.00 1,158.60 108.04 64.89 5,960,019.72 612,112.18 70° 17'58.976 N 149°5'31.208 W 1,205.00 22.30 35.35 1,187.47 117.26 71.40 5,960,029.04 612,118.54 70°17'59.067 N 149°5'31.018 W 1,236.00 24.48 35.67 1,215.92 127.28 78.55 5,960,039.16 612,125.54 70°17'59.165 N 149°5'30.810 W 1,269.00 26.02 35.71 1,245.77 138.71 86.76 5,960,050.72 612,133.58 70°17'59.278 N 149°5'30.570 W 1,300.00 27.36 36.95 1,273.47 149.92 95.01 5,960,062.05 612,141.66 70°17'59.388 N 149°5 30.330 W 1,331.00 30.19 35.76 1,300.64 161.94 103.85 5,960,074.20 612,150.32 70° 17'59.506 N 149°5 30.072 W 1,368.62 33.74 34.07 1,332.55 178.28 115.23 5,960,090.70 612,161.46 70°17'59.667 N 149°5'29.740 W 1,412.00 33.74 34.07 1,368.62 198.24 128.73 5,960,110.86 612,174.66 70°17'59.863 N 149°5'29.347 W Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 1,412.00 1,368.62 16"OH 16.000 16.000 Checked By: Approved By: Date: 11/29/2010 2:09:12PM Page 3 COMPASS 2003.16 Build 73 North America - ALASKA - BP Prudhoe Bay PB W Pad W-220 W-220PB2 Design: W-220PB2 Survey Report - Geographic 21 December, 2010 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220PB2 Survey Calculation Method: Minimum Curvature Design: W-220PB2 Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB W Pad,TR-11-12 Site Position: Northing: 5,957,194.18ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.343 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 0.84 ° f Well W-220 API No 500292343200 Well Position +NI-S 0.00 ft Northing: 5,959,910.74 ft Latitude: 70°17'57.914 N +E/-W 0.00 ft Easting: 612,048.91 ft Longitude: 149°5'33.100 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 53.40 ft Wellbore W-220PB2 API No 500292343271 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (0) (0) (nT) BGGM2009 11/26/2010 21.74 80.90 57,694 Design W-220PB2 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 1,300.00 Vertical Section: Depth From(ND) +N/-S +E/-W Direction (ft) (ft) (ft) (0) 33.90 0.00 0.00 33.35 Survey Program Date: 12/21/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description ■ 77.00 1,300.00 Gyro(W-220PB1) GYD-GC-SS Gyrodata gyro single shots 1,367.23 2,303.51 MWD Run 400(W-220PB2) MWD+IFR+MS MWD+IFR+Multi Station 2,421.08 6,318.33 MWD Run 500(W-220PB2) MWD+IFR+MS MWD+IFR+Multi Station 12/21/2010 4.36:09PM Page 2 COMPASS 2003.16 Build 73 , Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220PB2 Survey Calculation Method: Minimum Curvature Design: W-220PB2 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 33.90 0.00 0.00 33.90 0.00 0.00 5,959,910.74 612,048.91 70°17'57.914 N 149°5'33.100 W 77.00 0.38 177.24 77.00 -0.14 0.01 5,959,910.60 612,048.92 70°17'57.912 N 149°5'33.099 W 177.00 0.34 196.10 177.00 0.76 -0.06 5,959,909.98 612,048.86 70°17'57.906 N 149°5'33.101 W 237.00 0.38 184.29 237.00 -1.13 -0.12 5,959,909.61 612,048.80 70°17'57.903 N 149°5'33.103 W 297.00 0.73 165.69 296.99 -1.70 -0.04 5,959,909.04 612,048.89 70°17'57.897 N 149°5'33.101 W 391.00 0.64 95.22 390.99 -2.33 0.63 5,959,908.42 612,049.57 70°17'57.891 N 149°5'33.081 W 419.00 0.81 83.61 418.99 -2.32 0.98 5,959,908.44 612,049.92 70°17'57.891 N 149°5'33.071 W 451.00 1.04 74.49 450.98 -2.21 1.48 5,959,908.55 612,050.43 70°17'57.892 N 149°5'33.056 W 480.00 1.54 73.39 479.97 -2.03 2.11 5,959,908.74 612,051.05 70°17'57.894 N 149°5'33.038 W 540.00 1.57 54.44 539.95 -1.32 3.55 5,959,909.47 612,052.48 70°17'57.901 N 149°5 32.996 W 571.00 2.85 42.75 570.93 -0.51 4.42 5,959,910.29 612,053.34 70° 17'57.909 N 149°5'32.971 W 619.00 3.30 32.52 618.86 1.53 5.97 5,959,912.36 612,054.86 70° 17'57.929 N 149°5'32.926 W 667.00 5.85 22.24 666.70 4.96 7.64 5,959,915.81 612,056.48 70°17'57.963 N 149°5 32.877 W 701.00 7.67 19.75 700.47 8.70 9.06 5,959,919.57 612,057.84 70°17'57.999 N 149°5'32.835 W 732.00 8.64 20.95 731.15 12.82 10.60 5,959,923.72 612,059.31 70°17'58.040 N 149°5'32.791 W 763.00 10.15 20.67 761.74 17.55 12.39 5,959,928.47 612,061.04 70°17'58.086 N 149°5'32.738 W 795.00 10.24 22.11 793.23 22.82 14.46 5,959,933.78 612,063.03 70°17'58.138 N 149°5'32.678 W 826.00 10.96 23.85 823.70 28.07 16.69 5,959,939.06 612,065.18 70°17'58.190 N 149°5'32.613 W 857.00 11.87 24.55 854.09 33.67 19.20 5,959,944.69 612,067.61 70°17'58.245 N 149°5'32.540 W 891.00 13.40 26.47 887.26 40.38 22.41 5,959,951.44 612,070.72 70°17'58.311 N 149°5 32.446 W 922.00 14.87 27.76 917.32 47.11 25.87 5,959,958.23 612,074.07 70°17'58.377 N 149°5'32.346 W 953.00 15.35 28.87 947.25 54.22 29.70 5,959,965.40 612,077.80 70°17'58.447 N 149°5'32.234 W 983.00 14.92 30.19 976.21 61.04 33.56 5,959,972.27 612,081.55 70°17'58.514 N 149°5'32.121 W 1,014.00 15.48 32.71 1,006.13 67.97 37.80 5,959,979.26 612,085.69 70°17'58.582 N 149°5'31.998 W 1,045.00 16.65 33.09 1,035.92 75.17 42.46 5,959,986.53 612,090.24 70°17'58.653 N 149°5'31.862 W 1,077.00 17.58 32.82 1,066.50 83.08 47.59 5,959,994.51 612,095.25 70°17'58.731 N 149°5'31.712 W 1,110.00 16.95 34.78 1,098.01 91.21 53.03 5,960,002.73 612,100.57 70°17'58.811 N 149°5'31.554 W 1,141.00 18.80 35.48 1,127.52 98.99 58.51 5,960,010.59 612,105.93 70°17'58.887 N 149°5'31.394 W 1,174.00 20.40 35.00 1,158.60 108.04 64.89 5,960,019.72 612,112.18 70°17'58.976 N 149°5'31.208 W 1,205.00 22.30 35.35 1,187.47 117.26 71.40 5,960,029.04 612,118.54 70°17'59.067 N 149°5 31.018 W 1,236.00 24.48 35.67 1,215.92 127.28 78.55 5,960,039.16 612,125.54 70° 17'59.165 N 149°5'30.810 W 1,269.00 26.02 35.71 1,245.77 138.71 86.76 5,960,050.72 612,133.58 70° 17'59.278 N 149°5'30.570 W 1,300.00 27.36 36.95 1,273.47 149.92 95.01 5,960,062.05 612,141.66 70° 17'59.388 N 149°5'30.330 W 1,367.23 26.68 34.99 1,333.36 174.64 112.95 5,960,087.03 612,159.24 70° 17'59.631 N 149°5'29.807 W 1,400.11 28.39 35.76 1,362.51 187.03 121.75 5,960,099.55 612,167.85 70° 17'59.753 N 149°5'29.550 W 1,430.53 30.17 35.94 1,389.05 199.09 130.47 5,960,111.73 612,176.38 70°17'59.872 N 149°5'29.296 W 1,461.30 31.96 35.76 1,415.40 211.95 139.76 5,960,124.74 612,185.49 70°17'59.998 N 149°5'29.025 W 1,493.44 33.52 35.83 1,442.44 226.05 149.93 5,960,138.98 612,195.44 70°18'0.137 N 149°5'28.729 W 1,557.04 34.92 36.45 1,495.02 254.93 171.03 5,960,168.17 612,216.10 70°18'0.421 N 149°5'28.114 W 1,651.39 38.82 36.47 1,570.49 300.46 204.66 5,960,214.19 612,249.05 70°18'0.869 N 149°5'27.133 W 1,747.17 42.35 34.57 1,643.22 351.18 240.82 5,960,265.44 612,284.45 70°18'1.368 N 149°5'26.079 W 1,841.15 43.02 33.57 1,712.30 403.96 276.51 5,960,318.74 612,319.35 70°18'1.887 N 149°5'25.038 W 1,936.32 45.16 33.06 1,780.66 459.30 312.88 5,960,374.61 612,354.88 70°18'2.431 N 149°5'23.978 W 2,031.23 48.31 33.82 1,845.70 516.95 350.97 5,960,432.82 612,392.10 70°18'2.998 N 149°5'22.867 W 2,126.37 50.42 32.48 1,907.65 577.40 390.43 5,960,493.85 612,430.66 70°18'3.592 N 149°5'21.717 W 2,220.90 50.33 32.57 1,967.94 638.79 429.58 5,960,555.81 612,468.88 70° 18'4.196 N 149°5'20.575 W 2,303.51 52.90 29.91 2,019.24 694.16 463.13 5,960,611.67 612,501.60 70° 18'4.741 N 149°5'19.597 W 2,421.08 54.39 29.05 2,088.93 776.59 509.72 5,960,694.77 612,546.95 70° 18'5.551 N 149°5'18.239 W 2,517.41 56.81 31.31 2,143.36 845.27 549.69 5,960,764.04 612,585.89 70°18'6.227 N 149°5'17.073 W 2,550.24 57.86 31.20 2,161.08 868.90 564.03 5,960,787.88 612,599.87 70°18'6.459 N 149°5'16.655 W 2,581.87 60.39 31.74 2,177.31 892.05 578.20 5,960,811.23 612,613.70 70°18'6.687 N 149°5'16.242 W 2,613.54 62.06 32.10 2,192.55 915.61 592.88 5,960,835.01 612,628.02 70°18'6.918 N 149°5'15.814 W 2,645.39 63.37 32.65 2,207.15 939.51 608.04 5,960,859.14 612,642.82 70°18'7.154 N 149°5'15.372 W 2,708.29 62.61 33.31 2,235.72 986.52 638.54 5,960,906.59 612,672.62 70°18'7.616 N 149°5'14.482 W 2,802.46 66.55 33.48 2,276.13 1,057.52 685.35 5,960,978.27 612,718.36 70°18'8.314 N 149°5'13.117 W 12/21/2010 4:36:09PM Page 3 COMPASS 2003.16 Build 73 0 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay ND Reference: W-220 Actual @ 87.30ft(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220PB2 Survey Calculation Method: Minimum Curvature Design: W-220PB2 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +14/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 2,890.43 70.39 34.25 2,308.41 1,125.45 730.94 5,961,046.87 612,762.93 70°18'8.982 N 149°5 11.788 W 2,989.47 74.98 34.37 2,337.88 1,203.53 784.23 5,961,125.72 612,815.04 70°18'9.750 N 149°5 10.234 W 3,089.47 75.20 34.27 2,363.61 1,283.34 838.71 5,961,206.33 612,868.32 70°18'10.535 N 149°5 8.645 W 3,184.45 74.37 31.92 2,388.54 1,360.11 888.75 5,961,283.83 612,917.21 70°18'11.290 N 149°5 7.186 W 3,279.46 71.58 31.12 2,416.35 1,437.54 936.25 5,961,361.96 612,963.54 70°18'12.051 N 149°5'5.801 W 3,374.92 71.04 30.50 2,446.94 1,515.21 982.56 5,961,440.30 613,008.69 70°18'12.815 N 149°5 4.450 W 3,470.35 72.24 31.18 2,477.00 1,592.97 1,028.99 5,961,518.74 613,053.95 70°18'13.580 N 149°5'3.096 W 3,565.88 72.04 30.55 2,506.30 1,671.02 1,075.64 5,961,597.47 613,099.42 70° 18'14.347 N 149°5'1.735 W 3,660.95 71.71 31.18 2,535.88 1,748.57 1,121.99 5,961,675.70 613,144.61 70° 18'15.110 N 149°5'0.384 W 3,756.26 72.12 32.73 2,565.47 1,825.44 1,169.94 5,961,753.27 613,191.41 70°18'15.866 N 149°4'58.985 W 3,851.09 70.62 32.99 2,595.76 1,900.92 1,218.70 5,961,829.46 613,239.03 70° 18'16.608 N 149°4'57.563 W 3,945.59 72.03 32.97 2,626.02 1,976.02 1,267.43 5,961,905.27 613,286.63 70°18'17.347 N 149°4'56.142 W 4,041.71 72.71 33.98 2,655.13 2,052.43 1,317.96 5,961,982.41 613,336.01 70°18'18.098 N 149°4'54.668 W 4,136.08 72.56 33.44 2,683.29 2,127.35 1,367.94 5,962,058.07 613,384.87 70°18'18.835 N 149°4'53.210 W 4,230.70 72.67 33.80 2,711.57 2,202.55 1,417.94 5,962,133.99 613,433.73 70°18'19.574 N 149°4'51.752 W 4,326.64 72.76 33.12 2,740.07 2,278.97 1,468.45 5,962,211.16 613,483.09 70° 18'20.326 N 149°4'50.278 W 4,422.03 72.59 32.53 2,768.48 2,355.49 1,517.81 5,962,288.40 613,531.30 70° 18'21.078 N 149°4'48.838 W 4,517.43 72.40 33.21 2,797.17 2,431.91 1,567.19 5,962,365.54 613,579.53 70° 18'21.830 N 149°4'47.398 W 4,612.31 72.99 34.61 2,825.40 2,507.08 1,617.72 5,962,441.45 613,628.94 70°18'22.569 N 149°4'45.924 W 4,707.50 73.07 34.08 2,853.18 2,582.25 1,669.09 5,962,517.37 613,679.17 70°18'23.308 N 149°4'44.425 W 4,801.42 73.57 33.83 2,880.14 2,656.88 1,719.34 5,962,592.73 613,728.30 70°18'24.042 N 149°4'42.959 W 4,896.63 72.43 34.74 2,907.98 2,732.11 1,770.63 5,962,668.71 613,778.45 70°18'24.782 N 149°4'41.463 W 4,991.10 72.53 33.99 2,936.42 2,806.47 1,821.48 5,962,743.82 613,828.18 70°18'25.513 N 149°4'39.980 W 5,086.29 71.57 34.06 2,965.75 2,881.52 1,872.15 5,962,819.61 613,877.73 70°18'26.251 N 149°4'38.502 W 5,180.72 71.02 34.05 2,996.03 2,955.63 1,922.23 5,962,894.45 613,926.70 70°18'26.980 N 149°4'37.040 W 5,275.30 72.12 32.51 3,025.94 3,030.64 1,971.47 5,962,970.18 613,974.80 70°18'27.717 N 149°4'35.604 W 5,371.32 71.86 31.54 3,055.63 3,108.06 2,019.89 5,963,048.30 614,022.06 70°18'28.479 N 149°4'34.191 W 5,466.10 72.62 31.74 3,084.54 3,184.90 2,067.24 5,963,125.84 614,068.26 70°18'29.234 N 149°4'32.810 W 5,562.10 72.79 33.17 3,113.08 3,262.24 2,116.43 5,963,203.90 614,116.28 70°18'29.995 N 149°4'31.374 W 5,656.82 73.65 34.43 3,140.42 3,337.60 2,166.87 5,963,279.99 614,165.59 70°18'30.736 N 149°4'29.902 W 5,751.85 73.96 34.53 3,166.93 3,412.82 2,218.54 5,963,355.97 614,216.13 70°18'31.475 N 149°4'28.395 W 5,846.36 72.56 33.88 3,194.15 3,487.67 2,269.42 5,963,431.56 614,265.88 70°18'32.211 N 149°4'26.911 W 5,940.59 71.51 33.16 3,223.21 3,562.40 2,318.92 5,963,507.01 614,314.25 70°18'32.946 N 149°4'25.466 W 6,036.08 72.51 32.99 3,252.70 3,638.50 2,368.48 5,963,583.84 614,362.67 70°18'33.694 N 149°4'24.020 W 6,130.55 72.63 32.02 3,281.00 3,714.51 2,416.91 5,963,660.56 614,409.96 70°18'34.442 N 149°4'22.607 W 6,225.54 71.28 31.78 3,310.43 3,791.19 2,464.64 5,963,737.93 614,456.54 70°18'35.196 N 149°4'21.214 W 6,318.33 71.99 31.23 3,339.66 3,866.27 2,510.66 5,963,813.68 614,501.43 70°18'35.934 N 149°4'19.871 W 6,365.00 71.99 31.23 3,354.09 3,904.22 2,533.67 5,963,851.97 614,523.87 70°18'36.307 N 149°4'19.199 W 12/21/2010 4:36:09PM Page 4 COMPASS 2003.16 Build 73 Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-220 Project: Prudhoe Bay TVD Reference: W-220 Actual @ 87.30k(Doyon 14) Site: PB W Pad MD Reference: W-220 Actual @ 87.30ft(Doyon 14) Well: W-220 North Reference: True Wellbore: W-220PB2 Survey Calculation Method: Minimum Curvature Design: W-220PB2 Database: EDM.16-ANC Prod-WH24P Targets -- - j Target Name -hit/miss target Dip Angle Dip Dir. TVD +NI-S +E/-W Northing Easting -Shape (0) (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude W-220 Tgt 2 OBd 0.00 0.00 5,302.30 8,513.72 5,179.05 5,968,500.00 617,100.00 70°19'21.628 N 149°3'1.948 W -actual wellpath misses target center by 5660.48ft at 6365.00ft MD(3354.09 TVD,3904.22 N,2533.67 E) -Circle(radius 100.00) W-220 Tgt 1 OBa 0.00 0.00 5,157.30 8,313.72 5,176.07 5,968,300.00 617,100.00 70°19'19.661 N 149°3'2.039 W -actual wellpath misses target center by 5447.71ft at 6365.00ft MD(3354.09 TVD,3904.22 N,2533.67 E) -Circle(radius 100.00) W-220 Flt 1 2275ss 0.00 0.00 2,362.30 528.64 719.11 5,960,450.00 612,760.00 70°18'3.113 N 149°5'12.134 W -actual wellpath misses target center by 419.33ft at 2485.63ft MD(2125.78 TVD,822.57 N,536.08 E) -Polygon Point 1 2,362.30 528.64 719.11 5,960,450.00 612,760.00 Point2 2,362.30 1,207.04 902.26 5,961,131.00 612,933.00 Point3 2,362.30 2,811.72 1,213.25 5,962,740.00 613,220.00 Point4 2,362.30 1,207.04 902.26 5,961,131.00 612,933.00 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 2,342.00 2,042.33 13 3/8" 13.375 16.000 6,365.00 3,354.09 12 1/4"OH 12.250 12.250 3,705.00 2,549.63 9 5/8" 9.625 12.250 Checked By: Approved By: Date: 12/21/2010 4.36:09PM Page 5 COMPASS 2003.16 Build 73 tr r Data Analyzer Query Results Query Name: LOT/FIT Fixed Field Data by Wellbore Comm.WB Date LOT/FIT MW(ppg) TVD(ft) TMD(ft) Surface BHP(psi) EMW(ppg) Name Press(psi) W-220 :12/15/2010 12:00:00 PM LOT i 9.20: 3,357.00: 6,228.00: 740.0: 2,344.4: 13.44 4 W-220 • W-220PB1 W-220PB2 .12/2/2010 LOT 8.901. 2,041.00 2,342.001. 300.01 1,243.6; 11.73 J.W-220PB2 1/28/2011 13:17 Page 1 of 1 • m iz,_ 0 1 E E CD Q -, ¥ q - � § | k. .- t §lh N o Lii ! fs ) d =k=4! ) ■�*r - . . . . - - . . . . . 0 @ak" A 0 \/) ��k\k ° „ 37| -« 7� . ¥ g . . . . . . . . . . |�\ 4 it co g k �� g ( g k ° �9 § 7 . )() e3 -- -\- % . . , . . . . . . • ! ;|!ap.{§§ §§§Sm;§[ . CND # 0 \\ 2� . ■ } ! Op—last \ ! ■ 00 0" � § /� 3±-.04 o Emt 0 §otw z k § Ci _000, 0 Z .00027 . . . . Z k | %kkkkikB ` CA |§; - ; k§. . . . . . . . . . . . . k -J O. a;. S{! k|� _ ` 7«m-2 �K \0 \\ i ! :ƒ 2a § !! ;24| a ! ; �J Ugh QO0. (---- • . • • - 7D zro- /z6 nf.ChARICAL INTEGR.ITY MORT • . . _DAS/2 t•Lea.. OPER & FIELD F.3,G RI.1..E./..21.. : •.,1/11Z0//_____ M...). NUMBER W-2-z-c) c: , I „ o..4., DATA '):1)1 i Z 5r1 /O.. 5575 TVD.1 FBTD : iiLict3 I'M 55-2ColVD .... --.... Casing : 722 • Shoe::/A 570. tg.) 5:566 71TD 1 DV : —,----lir) ----. .7.1i1) ..t. ...........-...--..-. :.iner : il 57gig ” shoe : 62f .Ig) 3340.n ; :OP : 211(I HD 1 741 7 1 .7D IMP 7.ubsing : 314.,._,_..P s.c.k cr 12z.6 1.D) TVD ; Set at . . ..„--.......- _ :.... • Hole Size - anti ; Perfs ' to • ___......r.,........ ortar■s—r-..........oe+...... ISCRARICAL INTEGRZTY. - PART 0 . Annulu. Prcsa To.st: 7:.?. iidoo..1 15 taiLt__ ....; 30 miL.375--6149-'' Comments : ' 6,0,2 • , . K.E.CF,A14ICAL TITTECRITY - PART ;12 -, Cement Voit.unes : Amt. 11-1=-Er- _. Cmt vol to cover perf s ' 5ni3Re•-•5. i-z) c 4.,2„4-1. t ce..36' .3c)scs Thecreciccl TOC 7060 ' Att D - 72) a..L., ,oce-v•v oy _ _LA S.( 1-.., /..,.o . . . Cement Bond Log ,x. No) LtS IT— ; In AOGCC File. (290 CBI. Evalue.tion, zone above perfs 41d1- .,5 a1I -e."-c" "AL / c(- • , C 5 4.4.49. (-..,, ..r.-- /Def.( zekA i Production Log: TypeQ/A 1 Evalu&tion , . - . -. •. CONCLUSIONS : • . ?irt: il : P1 (7r— .e.1,1 10 7:4:- :5424" 5 • 2 vd7 • -ivo %ile-16s- 1. 1.1.< ,4o12- . dy- f4i,,,,s.e a.frr—S z-/a_le ,, .--) WMWM 3.3.ND WW1 m a, . ao VW' aaig m 1. gagx 4,4,!”,d,,ViZT :a.c2:20+ * x52, — ci I g CJWI ' Eil cs. 52 m r W ow (...'": . 2 ! 9 -.4 ca cs) 0 z z 0 m00cammmcmmEmcco 1..)... wixowwww0wm,mmcam 00 -4,,qa-4-1-ivi-imcmag i op 7Jmo 'A 33 M..) rmu,01P,-147-28rCr . 0 1 . , c :iggi7.---7.14cTice33g H* (21st 0 0 z rql" 1 003r44.... g 0 t.tC 1 °I °.1' 1231 'i 17 1 1 .... , s• Oc 1 0 ga Jo i 0 1 .k• • , G 04.51 1 0: . .- 6', -.-.-ut4.6200alli+ at,- 0000-“000000 -.000 . ' 1 <tie ao b. •C 0 ' . 4• ( Tir rl 0 VA DQD o. .oc...,A:0 5 o 0 0 3 • 26)07 0 'v5'-- • c..6`• $ k ''D 6 7, g , En41' 14 el' RV2 n s;a ci :ft" 1742.-k . - -...5aP: 2 gcs 5iy.R2f no --. i 3 1 3 . .__. . -,:----- .._ ..- ._ . . , .---' _ :7--, --:,, , . 0 o ... W-220/Permit No. 210-126 Page 1 of 2 Schwartz, Guy L (DOA) From: Schwartz, Guy L(DOA) Sent: Monday, December 06, 2010 2:36 PM To: 'Johnson, David A(Swift)' Cc: Saltmarsh, Arthur C (DOA) Subject: RE: W-220/Permit No. 210-126 David, I reviewed the well file and current directional plan with our geologist. There are no significant hydrocarbon bearing sands exposed where the well is TD'd currently. Your proposed plan below to sidetrack around the present wellbore is acceptable as long as you stay within 500ft of the current directional plan. Please send the new directional plan as soon as possible. The abandoned wellbore will be PB1 and all data for this should be included in the final 407 well report. Regards, Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Johnson, David A(Swift) [mailto:David.A.Johnson @bp.com] Sent: Monday, December 06, 2010 1:48 PM To: Schwartz, Guy L(DOA) Subject: W-220/ Permit No. 210-126 Guy, 9-5/8"casing was stuck on well W-220 at 3700'. We are planning to cut the 9-5/8" casing below the 13-3/8" casing shoe and redrill the 12-1/4' intermediate hole. The geologic targets will remain the same. I will send the new directional plan as soon as it is complete. W-220 Sidetrack Well Status: 13-3/8" casing is set at 2342' MD. A 12-1/4" hole was drilled to 6365' (above the Ugnu 4). 9-5/8" casing was run to -3700' where casing was stuck. Casing is packed off with no circulation. 1. Pick up 9-5/8" casing cutter and cut casing immediately below BOP stack (make cut opposite wellhead wear bushing). Pull and lay down casing. 2. RIH w/ 9-5/8" drillable bridge plug on 5" DP and set at -2642' (300' below 13-3/8" casing shoe). POOH w/ setting tool. 3. Run 9-5/8" casing cutter and cut casing at approximately 2442' (200' below 13-3/8" casing shoe). POH and lay down cutter. 4. Pull and lay down 9-5/8" casing. 12/6/2010 W-220/Permit No. 210-126 Page 2 of 2 • 5. RIH with 5" DP and mule shoe. Work into 9-5/8" casing stub and tag BP. 6. Mix and spot - 100 BBLS of 17.0 ppg cement. The plug will cover 200' of open hole w/40% excess and 400' inside the 13-3/8" casing. Balance plug with 10 ppg mudpush ahead and behind cement. Estimated top of cement at 1942'. 7. Pull up out of cement. Circulate foam balls down to clean DP. POH. 8. TIH w/ drilling BHA w/ 1.5 deg bent motor. 9. Wash/ream green cement to -3142' (within 200' of shoe). If cement is soft. Pull up and WOC. 10. Sidetrack well immediately below the 13-3/8" casing shoe and redrill the 12-1/4" hole. David Johnson BP Rotary Drilling Office: 907-564-4171 Cell: 907-632-5806 Fax: 907-564-4046 12/6/2010 S'T/ATIE AILASEA SEAN PARNELL,GOVERNOR 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 Robert Tipack Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU W-220 BP Exploration (Alaska), Inc. Permit No: 210-126 Surface Location: 346' FNL, 1175' FEL, SEC. 21, T11N, R12E, UM Bottomhole Location: 2109' FNL, 1252' FEL, SEC. 10, T11N, R12E, UM Dear Mr. Tirpack: Enclosed is the approved application for permit to drill the above referenced service 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, '/C) 17 Daniel T. Seamount, Jr. Chair DATED this 1 day of September, 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) STATE OF ALASKA �,r ALAS OIL AND GAS CONSERVATION COMM ON �! 9�3'/� PERMIT TO DRILL 20 AAC 25.005 S E P 0 3 2 L i ui la.Type of work: lb.Proposed Well Class: ❑Development Oil Z Service-Willi ❑Single Zone lc.,,iagsci f II is rpposed for: ® Drill ❑Redrill ❑ Stratigraphic Test ❑Development Gas ❑Service-Supply ❑Multiple Zone .i 4 cas'tiON ❑ Re-Entry ❑ Exploratory ❑Service-WAG ❑Service-Disp kichlr,p Shale Gas 2. Operator Name: 5.Bond: ® Blanket ❑Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU W-220 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 12513' TVD 5509' Prudhoe Bay Field/Polaris 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Pool Surface: ADL 028261 &028263 346'FNL, 1175'FEL, SEC.21,T11N, R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 2594'FNL, 1260'FEL, SEC. 10,T11N, R12E, UM October 16,2010 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 2109'FNL, 1252'FEL, SEC. 10,T11N, R12E, UM 2560 23,290' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 87.3 feet 15.Distance to Nearest Well Open Surface: x- 612049 y-5959911 Zone- ASP4 GL Elevation above MSL: feet to Same Pool: 3310' 16.Deviated Wells: Kickoff Depth: 325 feet 17.Maximum Anticipated Pressures in psig(see 20 MC 25.035) Maximum Hole Angle: 73 degrees Downhole: 2414 Surface: 1870 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) 42" 20" 129.5# X-65 WLD 80' surface,surface 80' 80' —260 sx Arctic Set 16" 13-3/8" 68# L-80 BTC 2188' surface surface 2188' 2006' 449 sx Arctic Set Lite,1036 sx Class'G' 12-1/4" 9-5/8" 40# L-80 BTC 4261' 2038' 1888' 6219' 3374' 208 sx LiteCRETE.822 sx Class'G' 8-3/4" 7" 26# L-80 TCII/BTC-M 12513' surface surface 12513' 5509' 249 sx LiteCRETE,270 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): Casing Length Size Cement Volume MD ND Conductor/Structural Surface Intermediate Production Liner Perforation Depth MD(ft): Perforation Depth ND(ft): 20.Attachments: ❑ Property Plat ❑BOP Sketch ®Drilling Program ❑Time vs Depth Plot ❑Shallow Hazard Analysis ®Diverter Sketch ❑Seabed Report ®Drilling Fluid Program 18120 MC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Contact Printed Name Robert Tirpack Title Engineering Team Leader Garret Staudinger,564-4242 p,� Prepared By Name/Number Signature ��"C/ r Phone 564-4166 Date 9'/o7�D Elizabeth Barker,564-4628 Commission Use Only Permit To Drill API Number: Perm' p r v I Date: See cover letter for Number: 4„,900 �6 50-0o9of,Sl,� 000 �4I`'() 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: li j I Other: 11000 Ps` '�`' �cs Samples Req'd: 0/es hd No Mud Log Req'd: Oyes I'No ��4 /Z SOD /O 5i... A .,.�(,K mss. -C,,,........," ) HZS Measures: 'Yes ❑No Directional Survey Req'd: "Yess�❑No I G.doflc. re.k-loin a.ccmpkJ .</4006 ' Z o ,4G Z 5703J'() MIT = C.ern...-tc. ,I I1 /1 Alb �1 Quo �a ill'[-':r+,� o�7GN��,I�h ih 4ccord' � //-I,LQ �S1t (/ . APPROVED BY THE COMMISSION Date , COMMISSIONER Form 10 401/' /"/c evis 07/2009 This permit is valid for 24 m• a f oval(20 MC 25.005(8)) Submit In Duplicate Well Name: W-2201 Drill and Complete Plan Summary Name Position Office Home Cell Trevor Hyatt Drilling Engineer 4627 223-3087 223-3087 Doug Wilson Geologist 4517 345-4294 240-4870 Bob Dawson Ops Geologist 5264 345-3359 242-2391 Taylor West Pad Engineer 4647 337-2028 632-0111 Type of Well (service/ producer/ injector): 1 Injector Surface Northing Easting Offsets TRS Location 5,959,911 612,049 4933' FSL/ 1175' FEL 11N, 12E, 21 Target Northing Easting TVDss Offsets TRS 5,968,300 617,100 -5070 2685' FSL/ 1261' FEL 11 N, 12E, 10 Locations 5,968,500 617,100 -5215 2885' FSL/ 1257' FEL 11N, 12E, 10 Bottom Northing Easting TVDss Offsets TRS Location 5,968,785 617,100 -5422 3170' FSL/ 1252' FEL 11N, 12E, 10 {-API NUMBER: ] NA Rig: I Doyon 14 [Estimated Start Date: 1 10/16/2010 Operating Days to complete: 1 28.3 MD: 112512' TVD: 15509' RT/GL: I34.3'/53' RTE: 187.3' Well Design: Grassroots Schrader Bluff Injector 3-1/2" tbg, 9.2# L80, TC-II, multi-packers, zonal injection Objective: 1 Multi-zonal injector into Schrader Bluff OBa, OBc and OBd sands Directional Plan: Version: Sperry P9 KOP: 325' MD, build 2/100 Maximum Hole Angle: 73.22° Close Approach Wells: All wells pass major risk criteria. Reference anti-collision report Nearest well within Pool TW-C—3310' Distance to Nearest Property 23,290'to PBU boundary Line: W-220i Permit Application Page 1 Wells within '/a mile of this injection well: Well Name Dist, Ft. Annulus Integrity Comments NONE Logging Program: Surface Interval Drilling, MWD: GR Open Hole: None Cased Hole: None Intermediate Interval Drilling, MWD: GR Open Hole: N/A Cased Hole: N/A Production Interval Drilling, MWD: GR, RES, NEU,Azimuthal Density PWD Open Hole: None Cased Hole: USIT-GPIT(PDC mode via tractor) Mud Program: 16" Surface Hole: Fresh Water Drilplex Mud Density Funnel Viscosity LSYP Yield Point API FL �H (ppg) (seconds) (2x3-6 rpm) (Ib/1 (mis/30min) Spud to Base 8.8—9.5 60-120 (for reference 30—50 40—80 <_8 10.8 Perm only. Fluid should be run off LSYP) Base Perm to 9.0—9.5 60-120 (for reference 28—45 40—80 <_6 10.8 • TD only. Fluid should be run off LSYP) 12 1/4" Intermediate Hole: Fresh Water Drilplex Mud Density Funnel Viscosity LSYP Yield Point API FL pH (ppg) (seconds) (2x3-6 rpm) (Ib/1 )Oft ) (mis/30min) Csg Shoe to 9.0—9.5 60-120 (for reference 28—45 40—80 <_6 10.8 ' TD only. Fluid should be run off LSYP) 8 3/4" Production Hole: LSND Interval Density YP PV pH API (ppg) Fluid Loss Csg Shoe to TD 8.8-9.3 18-24 12- 18 9-10 <6.0 W-220i Permit Application Page 2 Casing/Tubing Program: Hole Size Csg/ Wt/Ft Grade Connection Length Top Btm Tbg O.D. MD/TVD MD/TVD RTE 42" 20" 129.5 X-65 WLD 80' GL 807 80' 16" 13 3/8" 68 L-80 BTC 2188' GL 2188'/2006' 12 '/a" 9 5/8" 40 L-80 BTC 4261' 2038'/ 1888' 6219'/3374' 8 3/4' 7" 26 L-80 TC-II 7799' GL 8500'/4032' 8 3/4' 7" 26 L-80 BTC-M 4704' 8500'/4032' 12512'/5509' Tubing 3'h" 9.2 L-80 TC-II 12281' GL 12281'/5375' Comments: I Tbg crossover to 4'h"just below tree Formation Integrity Testing: Test Point Depth Test Type 13-3/8" Surface Casing 20'—50'from surface shoe LOT Test Point Depth Test Type 9-5/8" Intermediate Liner 20'—50'from surface shoe LOT Cement Calculations: Surface Casing: Casing Size 1 13'/8" Basis: Lead: Open hole volume+250%excess in permafrost. Port collar used if necessary. Lead TOC: Surface Tail: Open hole volume+250%excess in permafrost and 40% excess below permafrost+80' shoe track. Tail TOC: 800' MD above the casing shoe (1388' MD) Total Cement Volume: Lead 355 bbl/1993 ft /449 sks of Arctic Set Lite at 10.7 ppg and 4.45 cf/sk Tail 212 bbl/1191 fe/1036 sks of Class `G' at 15.8 ppg and 1.16 cf/sk Intermediate Liner: Casing Size 1 9 5/e" Basis: Lead: Open hole volume with 40%excess. Lead TOC: 200' above liner top (1838' MD) / Tail: Open hole volume 40% excess+80'shoe track. Tail TOC: 1919' MD above the liner shoe(4300' MD) Total Cement Volume: Lead 165 bbl/926 ft /208 sks of LiteCRETE at 11 ppg and 2.36 cf/sk Tail 170 bbl/945 ft'/822 sks of Class 'G' at 15.8 ppg and 1.16 cf/sk Production Casing: Casing Size I 7" Basis: Lead: Open hole volume with 30%excess. Lead TOC: No higher than 1000' MD below drilling liner shoe. (8000' MD) Tail: Open hole volume with 30%excess+80'shoe track volume, ID 6.276" Tail TOC: 11000' MD (400' MD above Mc) Total Cement Volume: Lead 104 bbl/586 ft°/249 sks of LiteCRETE at 11 ppg and 2.36 cf/sk Tail 56 bbl/313 ft'/270 sks of Class 'G'at 15.8 ppg and 1.16 cf/sk W-220i Permit Application Page 3 Formation Markers: Commercial Est.Formation Tops Uncertainty Hydrocarbon Bearing Est.Pore Press. Est.Pore Press. _Formation (TVDss) (feet) (Yes/No) _ (Psi) (ppg EMW) NOTE:All formation tops are required from 1000'above proposed KOP to TD for sidetracks NOTE:All formation tops are required from surface to TD for all new wells G1 -295 +/-50' No 133 8.7 SV6 -1205 +/-50' No 542 8.7 EOCU -1765 +/-50' No 794 8.7 SV5 -1860 +/-50' No 837 8.7 Base Permafrost -1875 +/-50' No 844 8.7 SV4 -2005 +/-50' Poss.Free Gas or Hydrates 902 8.7 Fault#1 -2430 +/-150'M.D.-See Fault Section for Details Poss.Free Gas or Gas SV3 -2445 +/-50' Hydrates 1100 8.7 Poss.Free Gas or Gas SV2 -2640 +/-50' Hydrates 1188 8.7 Poss.Free Gas or Gas SV1 -2960 +/-50' Hydrates 1332 8.7 UG4 -3320 +/-50' Thin coals. 1494 8.7 UG4A -3365 +/-50' Heavy Oil down to-.3520'SS 1514 8.7 UG3 -3720 +/-50' No,water. Thin coals. 1674 8.7 UG1 -4260 +/-50' No,water 1917 8.7 UG_Ma -4600 +/-50' No,water 2070 8.7 UG_Mb1 -4660 +/-50' Heavy oil possible 2097 8.7 UG_Mb2 -4715 +/-50' No,water 2122 8.7 UG_Mc -4795 +/-50' No,water 2158 8.7 SB_Na -4860 +/-50' No,water 2187 8.7 SB_Nb -4890 +/-50' No,water 2201 8.7 SB_Nc -4920 +/-50' No,water 2214 8.7 SB_Ne -4930 +/-50' No,water 2219 8.7 SB_OA -5015 +/-50' No,water 2257 8.8 SB_OBa -5065 +/-50' No,water 1923-2212 7.3-8.4 SB_OBb -5100 +/-50' Yes 2228-2307 8.4-8.7 SB_OBc -5155 +/-50' Yes 2144-2305 8.0-8.6 SB_OBd -5210 +/-50' Yes 1896-2304 7.0-8.4 SB_OBe -5275 +/-50' No 2374 8.7 SB_OBf -5320 +/-50' No 2394 8.7 Base_SB_OBf -5365 +/-50' No 2414 8.7 TD -5427 Well TD Criteria T.D.is 250'MD past Top_OBe marker. (ie ??ft TVD,??ft Rathole,etc.) Comments Formation pressures from surface to the Ma are calculated based on a.450 water gradient. Formation pressures from the UG_Ma down to the SB_OA are based on W-200PB1 RFT pressures taken before start of W Pad Schrader Bluff production. Formation pressures in the SB_OBa through SB_OBd sands are estimated and assume these sands will show pressure depletion resulting from offset producers W-204 and W-201. W-220i Permit Application Page 4 Well Control: 16" holes will be drilled with diverter. The 12-1/4" intermediate hole will use well control equipment consisting of 5000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Annular preventer will be tested to 2500 psi. Rams will be tested to 4000 psi. The BOP test frequency will be conducted on a 14 day frequency, with a function test every 7 days. Except for significant operational issues that may effect well integrity or pose safety concerns, an extension to the 14 day BOP test period should not be requested. Diverter, BOPE and drilling fluid system schematics of Doyon 14 are attached to this permit to drill. Production Interval- Y.>i°f3 • Maximum anticipated BHP: 2414 psi @ 5447' TVD,$�7 ppg EMW ' • Maximum surface pressure: 1870 psi @ surface (based on BHP and a full column of gas from TD @ 0.10 psi/ft) • Planned BOP test pressure: • Annular Preventer 250/2500 psi • Rams 250/4000 psi • Planned completion fluid: 9.0 ppg brine/6.8 ppg diesel (12511' MD, also TD) I Kick Tolerance/Integrity Testing Summary Table Casing and Casing Maximum Influx Mud Exp Pore LOT/ Interval Test Volume Weight Press FIT Pressure _ 133/8" Surface 3500 psi 50 BBLS (assuming 9.2 8.7 LOT Casing 11.0 LOT) 95/8" Intermediate 3500 psi 50 BBLS (assuming 9.2 8.8 LOT Liner 11.0 LOT) 7" Production 4000 psi NA NA NA NA Casing Disposal: • No annular disposal in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS- 04 for disposal. Haul all Class I wastes to Pad 3 for disposal. Variance Request: To avoid the risk of plugging the flow line with large rocks and wood encountered while drilling surface hole, it is requested to drill without a flow paddle for the first portion of the surface hole. After drilling past the larger rocks and wood sections, the flow paddle will be put back in the flow line. W-220i Permit Application Page 5 W-220i - Drill and Complete Procedure Summary Pre-Rig Work: The 20" insulated conductor is installed. 1. Weld an FMC landing ring for the FMC slimhole well head on the conductor. 2. If necessary, level the pad and prepare location for rig move. Shut in nearby wells, bleed off process lines, and remove well houses as necessary. Rig Operations: 1. MIRU Doyon 14. Nipple up diverter spool and function test diverter. 2. PU & stand back DP as needed. MU 16" drilling assembly with MWD/GR. Directionally drill surface hole to the base of permafrost. CBU or until hole is clean,then POOH and lay down BHA. 3. Run and cement the 13-3/8", 68.0 lb/ft L-80 surface casing to surface with the Tesco CDS Tool, displacing cement with mud. 4. ND diverter spool and NU and test casing/tubing head. NU BOPE and test rams @ 4,000 psi /250 psi, and annular to 2500 psi/250psi. 5. Pressure test the 13-3/8"casing to 3500 psi for 30 minutes. . 6. MU 12-1/4" drilling assembly with MWD/GR and RIH to float collar. Drill shoe track and displace to new 8.8 ppg LSND mud. Drill new formation to 20-50' below 13-3/8"shoe and perform LOT. . 7. Drill ahead to TD in the SV1. CBU or until hole is clean, then POOH and lay down BHA. 8. Change to 9-5/8"casing rams and test. - 9. Run and cement the 9-5/8", 40.0 lb/ft L-80 drilling liner with 150' overlap into the 13-3/8". Set Displace , cement with mud and set hanger/liner top packer. POOH. alo 2A-s,5 {o v6ft. 10. MU 8-3/4" drilling assembly with MWD/GR/Res/Azi-Den/Neu/PWD and RIH to 9-5/8" float collar. Pressure test to 3500 psi for 30 minutes. Drill shoe track and ensure 8.8 ppg LSND mud is in good . condition. Drill new formation to 20-50' below 9-5/8"shoe and perform LOT. 11. Drill ahead to production hole TD 250' below the top of OBe. Clean and wipe hole. POOH. ' 12. Change to 7" rams and test prior to running casing. 13. Run and cement the 7", 26#, L-80, BTC-M x TCII production casing. Displace the casing with 9.0 ppg brine, and pressure test casing to 4,000 psi for 30 minutes at plug bump. Confirm 500 psi cement compressive strength prior to freeze protecting. Freeze protect the 7"x 13-3/8"annulus. 14. PU DPC guns and RIH to shoot 152' of perfs with of 4.5" Power Jet 4505 5 spf, pert guns with ✓ GR/CCL for gun correlation. W-220i Permit Application Page 6 15. Once correlated correctly, confirm cement compressive strength is at least 1,000 psi before firing. Perforate the OBa, OBc, and OBd sands. POOH stand back DP and lay down guns. 16. Make clean out run using DP. 17. RU Schlumberger E-line. RIH with gauge ring and junk basket on tractor to recover any pert debris. Repeat until clean to at least 50' below the bottom perforation. 18. Run USIT/GPIT log with tractor following Primary Depth Control procedures as USIT log will be i prim control for future well work. 19. Run the 3-1/2", 9.2#, L-80, TCII completion with a 7" x 3-1/2" straddle packer assembly, I-wire, gauges, and injection mandrels. Torque turn TCII threaded tubing. Top packer must be within 200' of OBa perfs. Confirm that packers are on depth using E-line. 20. Run in the lockdown screws and set the packers. Give AOGCC 24 hours notice, then test the production casing/tubing annulus and tubing to 4,000 psi each. Shear the DCR shear valve and pump both ways to confirm circulation ability. 21. Install and test FMC TWC. Nipple down the BOPE. Nipple up and test the tree to 5,000 psi. Pull TWC. 22. Freeze protect the well to 2,500'TVD by pumping corrosion inhibited brine down the IA with rig pumps followed by diesel down IA w/ Hot Oil truck, taking clean brine returns to surface. Allow diesel to u- tube into tubing. 23. Install BPV in tubing hanger. Install a VR plug in the 7"x 3-1" annulus valve and secure the well. Assure that IA/OA are protected with two barriers. 24. Rig down and move off. Post-Rig Work: 1. R/U coil tubing and pull ball and rod/RHC from the tailpipe. 2. Replace the DCR shear valve with a dummy GLV. 3. Pull dummy valves in injection mandrels and replace with injection valves. 4. Pump RG2401 on top of surface casing cement. • 5. Pull VR plug. 6. Install 4 1/16"carbon tree with Baker hydraulic SSV Actuator. 7. Install wellhouse and flowlines. W-220i Permit Application Page 7 Drilling Critical Issues POST THIS NOTICE IN THE DOGHOUSE I. Well Control/Reservoir Pressures: Interval Psi (EMW) TVDss MD Schrader Bluff 1896-2414 5015- 11660- Sands (7.0-8.8) 5509 12512 II. Hydrates and Shallow gas: A. Free gas and/or gas hydrates may likely be present in the SV5 through the SV1 surface hole below the Permafrost base. Use standard operating procedures for hydrates, if encountered. Set surface casing below deepest SV1 sand hydrate zone to isolate gas bearing intervals behind cemented pipe in surface hole from intermediate hole section. III. Running Gravels: A. Unconsolidated sand, gravel, &cobbles and thawing permafrost could impede well angle build and casing running through permafrost. Keep moderate to low build angles until out of permafrost section. Keep flow rates low. Hazards include wood and cobbles, lost circulation, and tight hole problems while drilling and running casing. See W Pad Data Sheet for details. B. Recent W Pad wells have experienced tight hole, running gravels, and lost circulation with drilling and running casing in Permafrost interval. Use best practices for drilling and lining surface hole interval. Base plan is to use the Tesco CDS casing running tool to address this problem for 13- 3/8" casing. IV. Faults Formation Where MD Throw Encounter Fault Intersect tvdss Est.Throw Direction Uncertainty Fault#1 - SV4 3235 -2430 -20'to-50' West +/- 150' M.D. V. Kick Tolerance/Integrity Testing: A. The 13 3/8 casing will be cemented to surface using a port collar at 1000' if necessary. The 9 5/8' intermediate liner will be cemented to the top of the 9 5/8 liner. The 7" production casing will be cemented to at least 500' MD above the Ma and no closer than 1000' below 9-5/8" intermediate shoe. Kick Tolerance/Integrity Testing Summary Table l Casing and Casing Maximum Influx Mud Exp Pore LOT/ Interval Test Volume Weight Press FIT Pressure 133/8" Surface 3500 psi 50 BBLS (assuming 9.2 8.7 LOT Casing 11.0 LOT) 95/8' Intermediate 3500 psi 50 BBLS (assuming 9.2 8.8 LOT Liner 11.0 LOT) 7" Production 4000 psi NA NA NA NA Casing W-220i Permit Application Page 8 VI. Lost Circulation/Breathing: A. Lost circulation potential when crossing Fault#1. No faults expected in the reservoir interval. Follow LCM decision tree; reduce mud weight slightly. B. Minor pressure depletion of OBa, OBc, and OBd zones from W Pad Polaris off take. Follow LCM decision tree; reduce mud weight slightly. VII. Broaching A. Monitor adjacent wells for broaching while drilling surface hole. VIII. Heavy Oil A. Heavy oil is expected in the UG4A and M sand intervals which could result in plugging of shaker screens. Follow established operating practices for drilling in heavy oil zones. IX. Hydrogen Sulfide A. All W Pad gas lift wells are expected to have H2S levels in the 5 to 60 ppm range; result of PBU gas lift gas. This site should be treated as an H2S site with all the required precautions. Date of Well Name H2S Level Reading #1 Closest SHL Well H2S Level W-204 12 ppm 11/9/2009 #2 Closest SHL Well H2S Level W-201 18 ppm 10/8/2009 #1 Closest BHL Well H2S Level W-201 18 ppm 10/8/2009 #2 Closest BHL Well H2S Level W-205 20 ppm 1/15/2010 Max. Recorded H2S on Pad/Facility W-01 60 ppm 8/16/2005 Other Relevant H2S Data: All W Pad gas lift wells are expected to have H2S (H2S alarms from rigs, etc.) levels in the 5 to 60 ppm range. CONSULT THE W PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION W-220i Permit Application Page 9 WELLHEAD= FMC PROPOSED W-220 SAFETY NOTES: ACTUATOR= Hyd. KB. ELEV= 34.4' BF. ELEV= 53' L. r 13 4-1/2"X 3-1/2"XO, ID=2.992" KOP= 250' Max Angle= 73°@ 3003' Datum MD= 12513' 20"CONDUCTOR, 108' 2038' I 13-3/8"X 9-5/8"BKR ZXP LTP/HGR Datum TVD= 5422'SS 94#,A-55,WELDED, ID=19.124" 13-3/8"CSG,68#, L-80, BTC,ID=12.415" H 1 2188' ' 2513 3 1!2"HES X NIP, ID=2.813" 9-5/8"LNR,40#,L-80, BTC,ID=8.835" —J 6219' I A , WATER INJECTION MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 7 CSG,26#,L-80 TC11 XO TO L-80 BTC-M H 8500' I X X 5 MMG-HW-E 4 MMG-HW-D 3 MMG-HW-C 2 WAG-FM/-B 3-1/2"PUP JOINT w/RA TAt. 11825' t 1 n/VnG Hw-A DI IZ—I 11842' I—7"X 3-1/2"BKR PRE7VI FEED THRU PKR,ID=2.965" 7"PUP JOINT w/RA TAG H 11875' I , 1 11856' H3-1/2"NDPG MULTI SUB, ID=2.992" I IMP Minimum ID = 2.75" @ 12270' 1 3-1/2" HES XN NIPPLE 11997' I—7"X 3-1/2"HES MFA FEED THRU PKR, ID=2.965" PERFORATION SUMMARY REF LOG:LWD LOG ON 11/27/09 ANGLE AT TOP PERF:xx°@ xxxx' U — 12011' 1-13-1/2"NDPG MULTI SUB, ID=2.992" I Note: Refer to Production DB for historical pert data SIZE SPF ZONE INTERVAL Opn/Sqz DATE 4-1/2" 5 OBa NIP 4-1/2" 5 OBc 4-1/2" 5 OBd 12122' 117"X 3-1/2"HES MFA FEED THRU PKR,ID=2.965" I 12136' H3-1/2"NDPG SINGLE SUB, ID=2.992" I MEI ' ' I 12240' I-13-1/2"HES X NIP,ID=2.813" I II I I 12271' H3-1/2"HES XN NIP, ID=2.750" I 3-1/2"TBG,9.2#, L-80 TCII, .0087 bpf, ID=2.992" H 12282' 12282' 1-13-1/2"WLEG, ID=2.992" PBTD H 12430' •�.�.�.�•�•�••�.• 7"CSG,26#, L-80 BTC, .0383 bpf, ID=6.276" I—I 12512' • DATE REV BY COMMENTS DATE REV BY COMMENTS POLARIS UNIT 03/05/10 GJS PROPOSED COMPLETION WELL: W-220 PERMIT No: API No: SEC 21,T11 N, R12E 4933'FSL&1175'FEL BP Exploration(Alaska) i t BP - Alaska Prudhoe Bay z PB W Pad ., n : Plan W-220 Plan W-220 A Plan: W-220 Wp 9.0 ;$ Standard Proposal Report 19 August, 2010 gt' s u g: 4 .:1 :: ,.4.11Irint.. 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Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-220 Design: W-220 Wp 9.0 Project Prudhoe Bay,North Slope,UNITED STATES Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB W Pad,TR-11-12 Site Position: Northing: 5,957,194.18ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.34 W Position Uncertainty: 0.00 ft Slot Radius: 0" Grid Convergence: 0.84 ° Well Plan W-220 Well Position +N/-S 0.00 ft Northing: 5,959,911.00 ft Latitude: 70°17'57.916 N +E/-W 0.00 ft Easting: 612,049.00 ft Longitude: 149°5'33.10 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 53.00 ft Wellbore Plan W-220 1 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (0) (0) (nT) BGGM2009 5/19/2010 21.99 80.89 57,678 Design W-220 Wp 9.0 Audit Notes: Version: Phase: PLAN Tie On Depth: 34.30 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 34.30 0.00 0.00 30.50 Plan Sections Measured Vertical TVD Dogleg Build Turn Depth Inclination Azimuth Depth System +N/-S +El-W Rate Rate Rate Tool Face (ft) (°) (0) (ft) ft (ft) (ft) (°/100ft) (°1100ft) (°/100ft) (°) 34.30 0.00 0.00 34.30 -53.00 0.00 0.00 0.00 0.00 0.00 0.00 325.00 0.00 0.00 325.00 237.70 0.00 0.00 0.00 0.00 0.00 0.00 575.00 5.00 33.00 574.68 487.38 9.14 5.94 2.00 2.00 0.00 33.00 2,079.38 42.61 33.00 1,926.50 1,839.20 509.29 330.74 2.50 2.50 0.00 0.00 2,188.00 42.61 33.00 2,006.44 1,919.14 570.96 370.79 0.00 0.00 0.00 0.00 2,238.00 42.61 33.00 2,043.24 1,955.94 599.35 389.22 0.00 0.00 0.00 0.00 3,003.22 73.22 33.03 2,444.91 2,357.61 1,136.55 738.29 4.00 4.00 0.00 0.05 11,054.77 73.22 33.03 4,769.62 4,682.32 7,599.68 4,939.61 0.00 0.00 0.00 0.00 11,913.53 54.06 0.85 5,157.30 5,070.00 8,313.46 5,175.97 4.00 -2.23 -3.75 -130.18 12,160.58 54.06 0.85 5,302.30 5,215.00 8,513.46 5,178.95 0.00 0.00 0.00 0.00 12,161.81 54.01 0.85 5,303.02 5,215.72 8,514.46 5,178.97 4.07 -4.06 -0.36 -175.95 12,512.84 54.01 0.85 5,509.30 5,422.00 8,798.45 5,183.18 0.00 0.00 0.00 0.00 8/19/2010 10:39:45AM Page 2 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTO_ Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-220 Design: W-220 Wp 9.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-5 +E/_W Northing Easting DLS Veil Section (ft) (°) (°) (ft) ft (ft) (ft) (ft) (ft) -53.00 1 34.30 0.00 0.00 34.30 -53.00 0.00 0.00 5,959,911.00 612,049.00 0.00 0.00 100.00 0.00 0.00 100.00 12.70 0.00 0.00 5,959,911.00 612,049.00 0.00 0.00 200.00 0.00 0.00 200.00 112.70 0.00 0.00 5,959,911.00 612,049.00 0.00 0.00 300.00 0.00 0.00 300.00 212.70 0.00 0.00 5,959,911.00 612,049.00 0.00 0.00 325.00 0.00 0.00 325.00 237.70 0.00 0.00 5,959,911.00 612,049.00 0.00 0.00 KOP Start Build 2.00 33 RT TF 382.30 1.15 33.00 382.30 295.00 0.48 0.31 5,959,911.49 612,049.30 2.00 0.57 G1 400.00 1.50 33.00 399.99 312.69 0.82 0.53 5,959,911.83 612,049.52 2.00 0.98 500.00 3.50 33.00 499.89 412.59 4.48 2.91 5,959,915.52 612,051.84 2.00 5.34 575.00 5.00 33.00 574.68 487.38 9.14 5.94 5,959,920.23 612,054.80 2.00 10.89 Increase Build 2.50 575.0'MD 600.00 5.63 33.00 599.58 512.28 11.08 7.20 5,959,922.19 612,056.03 2.50 13.20 700.00 8.13 33.00 698.85 611.55 21.12 13.72 5,959,932.32 612,062.40 2.50 25.16 800.00 10.63 33.00 797.50 710.20 34.78 22.59 5,959,946.11 612,071.07 2.50 41.43 900.00 13.13 33.00 895.36 808.06 52.04 33.79 5,959,963.53 612,082.01 2.50 61.99 1,000.00 15.63 33.00 992.22 904.92 72.86 47.32 5,959,984.55 612,095.22 2.50 86.79 1,100.00 18.13 33.00 1,087.90 1,000.60 97.20 63.12 5,960,009.12 612,110.66 2.50 115.79 1,200.00 20.63 33.00 1,182.23 1,094.93 125.02 81.19 5,960,037.21 612,128.31 2.50 148.93 1,300.00 23.13 33.00 1,275.03 1,187.73 156.27 101.48 5,960,068.75 612,148.13 2.50 186.15 1,318.82 23.60 33.00 1,292.30 1,205.00 162.53 105.55 5,960,075.07 612,152.10 2.50 193.60 SV6 1,400.00 25.63 33.00 1,366.11 1,278.81 190.88 123.96 5,960,103.69 612,170.09 2.50 227.38 1,500.00 28.13 33.00 1,455.30 1,368.00 228.79 148.58 5,960,141.96 612,194.14 2.50 272.54 1,600.00 30.63 33.00 1,542.43 1,455.13 269.92 175.29 5,960,183.48 612,220.23 2.50 321.54 1,700.00 33.13 33.00 1,627.35 1,540.05 314.21 204.05 5,960,228.19 612,248.32 2.50 374.29 1,800.00 35.63 33.00 1,709.88 1,622.58 361.55 234.80 5,960,275.98 612,278.36 2.50 430.69 1,900.00 38.13 33.00 1,789.87 1,702.57 411.88 267.48 5,960,326.78 612,310.28 2.50 490.64 1,980.49 40.14 33.00 1,852.30 1,765.00 454.48 295.14 5,960,369.79 612,337.31 2.50 541.39 EOCU 2,000.00 40.63 33.00 1,867.16 1,779.86 465.08 302.02 5,960,380.49 612,344.03 2.50 554.01 2,079.38 42.61 33.00 1,926.50 1,839.20 509.29 330.74 5,960,425.12 612,372.08 2.50 606.68 End Directional 2079.4'MD 2,100.00 42.61 33.00 1,941.68 1,854.38 521.00 338.34 5,960,436.94 612,379.50 0.00 620.63 2,107.64 42.61 33.00 1,947.30 1,860.00 525.33 341.16 5,960,441.32 612,382.26 0.00 625.79 SV5 2,128.02 42.61 33.00 1,962.30 1,875.00 536.91 348.67 5,960,453.00 612,389.60 0.00 639.58 Base Permafrost 2,188.00 42.61 33.00 2,006.44 1,919.14 570.96 370.79 5,960,487.38 612,411.20 0.00 680.15 2,188.08 42.61 33.00 2,006.50 1,919.20 571.00 370.81 5,960,487.42 612,411.23 0.00 680.20 13 3/8" 2,200.00 42.61 33.00 2,015.28 1,927.98 577.78 375.21 5,960,494.26 612,415.52 0.00 688.26 2,238.00 42.61 33.00 2,043.24 1,955.94 599.35 389.22 5,960,516.04 612,429.21 0.00 713.96 Start DLS 4.00 2238.0'MD 2,300.00 45.09 33.00 2,087.95 2,000.65 635.37 412.62 5,960,552.40 612,452.06 4.00 756.87 8/19/2010 10:39:45AM Page 3 COMPASS 2003.16 Build 73 Sperry Drilling . 1-IALLI B U RTO I Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-220 Design: W-220 Wp 9.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (°) (°) (ft) ft (ft) (ft) (ft) (ft) 2,005.00 2,306.17 45.34 33.00 2,092.30 2,005.00 639.04 415.00 5,960,556.10 612,454.39 4.00 761.25 SV4 2,400.00 49.09 33.01 2,156.02 2,068.72 696.78 452.50 5,960,614.39 612,491.02 4.00 830.03 2,500.00 53.09 33.01 2,218.82 2,131.52 762.02 494.88 5,960,680.25 612,532.43 4.00 907.75 2,600.00 57.09 33.01 2,276.04 2,188.74 830.77 539.55 5,960,749.65 612,576.06 4.00 989.66 2,700.00 61.09 33.02 2,327.40 2,240.10 902.70 586.29 5,960,822.26 612,621.72 4.00 1,075.36 2,800.00 65.09 33.02 2,372.65 2,285.35 977.45 634.87 5,960,897.72 612,669.17 4.00 1,164.43 2,900.00 69.09 33.02 2,411.57 2,324.27 1,054.67 685.06 5,960,975.67 612,718.20 4.00 1,256.43 3,000.00 73.09 33.03 2,443.97 2,356.67 1,133.97 736.61 5,961,055.73 612,768.56 4.00 1,350.92 3,003.20 73.22 33.03 2,444.90 2,357.60 1,136.54 738.28 5,961,058.32 612,770.19 4.00 1,353.98 End Directional 3003.2'MD 3,003.22 73.22 33.03 2,444.91 2,357.61 1,136.55 738.29 5,961,058.34 612,770.19 4.00 1,354.00 3,100.00 73.22 33.03 2,472.85 2,385.55 1,214.24 788.79 5,961,136.76 612,819.53 0.00 1,446.57 3,200.00 73.22 33.03 2,501.72 2,414.42 1,294.51 840.97 5,961,217.80 612,870.50 0.00 1,542.22 3,300.00 73.22 33.03 2,530.60 2,443.30 1,374.78 893.15 5,961,298.83 612,921.47 0.00 1,637.86 3,305.90 73.22 33.03 2,532.30 2,445.00 1,379.52 896.23 5,961,303.61 612,924.48 0.00 1,643.51 SV3 3,400.00 73.22 33.03 2,559.47 2,472.17 1,455.06 945.33 5,961,379.86 612,972.45 0.00 1,733.51 3,500.00 73.22 33.03 2,588.34 2,501.04 1,535.33 997.51 5,961,460.90 613,023.42 0.00 1,829.16 3,600.00 73.22 33.03 2,617.22 2,529.92 1,615.60 1,049.69 5,961,541.93 613,074.39 0.00 1,924.81 3,700.00 73.22 33.03 2,646.09 2,558.79 1,695.87 1,101.87 5,961,622.97 613,125.37 0.00 2,020.46 3,800.00 73.22 33.03 2,674.96 2,587.66 1,776.14 1,154.05 5,961,704.00 613,176.34 0.00 2,116.11 3,900.00 73.22 33.03 2,703.83 2,616.53 1,856.42 1,206.23 5,961,785.03 613,227.31 0.00 2,211.75 3,981.27 73.22 33.03 2,727.30 2,640.00 1,921.66 1,248.64 5,961,850.89 613,268.74 0.00 2,289.49 SV2 4,000.00 73.22 33.03 2,732.71 2,645.41 1,936.69 1,258.41 5,961,866.07 613,278.29 0.00 2,307.40 4,100.00 73.22 33.03 2,761.58 2,674.28 2,016.96 1,310.59 5,961,947.10 613,329.26 0.00 2,403.05 4,200.00 73.22 33.03 2,790.45 2,703.15 2,097.23 1,362.77 5,962,028.14 613,380.23 0.00 2,498.70 4,300.00 73.22 33.03 2,819.33 2,732.03 2,177.50 1,414.95 5,962,109.17 613,431.21 0.00 2,594.35 4,400.00 73.22 33.03 2,848.20 2,760.90 2,257.77 1,467.13 5,962,190.20 613,482.18 0.00 2,690.00 4,500.00 73.22 33.03 2,877.07 2,789.77 2,338.05 1,519.31 5,962,271.24 613,533.15 0.00 2,785.64 4,600.00 73.22 33.03 2,905.94 2,818.64 2,418.32 1,571.49 5,962,352.27 613,584.13 0.00 2,881.29 4,700.00 73.22 33.03 2,934.82 2,847.52 2,498.59 1,623.67 5,962,433.31 613,635.10 0.00 2,976.94 4,800.00 73.22 33.03 2,963.69 2,876.39 2,578.86 1,675.85 5,962,514.34 613,686.07 0.00 3,072.59 4,900.00 73.22 33.03 2,992.56 2,905.26 2,659.13 1,728.03 5,962,595.38 613,737.05 0.00 3,168.24 5,000.00 73.22 33.03 3,021.44 2,934.14 2,739.41 1,780.21 5,962,676.41 613,788.02 0.00 3,263.88 5,089.58 73.22 33.03 3,047.30 2,960.00 2,811.31 1,826.96 5,962,749.00 613,833.68 0.00 3,349.57 SV1 5,100.00 73.22 33.03 3,050.31 2,963.01 2,819.68 1,832.39 5,962,757.44 613,838.99 0.00 3,359.53 5,200.00 73.22 33.03 3,079.18 2,991.88 2,899.95 1,884.58 5,962,838.48 613,889.97 0.00 3,455.18 5,300.00 73.22 33.03 3,108.05 3,020.75 2,980.22 1,936.76 5,962,919.51 613,940.94 0.00 3,550.83 5,400.00 73.22 33.03 3,136.93 3,049.63 3,060.49 1,988.94 5,963,000.55 613,991.91 0.00 3,646.48 5,500.00 73.22 33.03 3,165.80 3,078.50 3,140.76 2,041.12 5,963,081.58 614,042.89 0.00 3,742.13 5,600.00 73.22 33.03 3,194.67 3,107.37 3,221.04 2,093.30 5,963,162.61 614,093.86 0.00 3,837.77 5,700.00 73.22 33.03 3,223.55 3,136.25 3,301.31 2,145.48 5,963,243.65 614,144.83 0.00 3,933.42 8/19/2010 10:39:45AM Page 4 COMPASS 2003.16 Build 73 Sperry Drilling . HALLI B U RTO Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Welibore: Plan W-220 Design: W-220 Wp 9.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-5 +E/_W Northing Easting DLS Vert Section (ft) (°) (°) (ft) ft (ft) (ft) (ft) (ft) 3,165.12 5,800.00 73.22 33.03 3,252.42 3,165.12 3,381.58 2,197.66 5,963,324.68 614,195.81 0.00 4,029.07 5,900.00 73.22 33.03 3,281.29 3,193.99 3,461.85 2,249.84 5,963,405.72 614,246.78 0.00 4,124.72 6,000.00 73.22 33.03 3,310.16 3,222.86 3,542.12 2,302.02 5,963,486.75 614,297.75 0.00 4,220.37 6,100.00 73.22 33.03 3,339.04 3,251.74 3,622.40 2,354.20 5,963,567.78 614,348.73 0.00 4,316.02 6,200.00 73.22 33.03 3,367.91 3,280.61 3,702.67 2,406.38 5,963,648.82 614,399.70 0.00 4,411.66 6,219.60 73.22 33.03 3,373.57 3,286.27 3,718.40 2,416.61 5,963,664.70 614,409.69 0.00 4,430.41 9 5/8" 6,300.00 73.22 33.03 3,396.78 3,309.48 3,782.94 2,458.56 5,963,729.85 614,450.67 0.00 4,507.31 6,336.42 73.22 33.03 3,407.30 3,320.00 3,812.18 2,477.57 5,963,759.37 614,469.24 0.00 4,542.15 UG4 6,400.00 73.22 33.03 3,425.66 3,338.36 3,863.21 2,510.74 5,963,810.89 614,501.64 0.00 4,602.96 6,492.28 73.22 33.03 3,452.30 3,365.00 3,937.29 2,558.89 5,963,885.66 614,548.68 0.00 4,691.23 UG4A 6,500.00 73.22 33.03 3,454.53 3,367.23 3,943.48 2,562.92 5,963,891.92 614,552.62 0.00 4,698.61 6,600.00 73.22 33.03 3,483.40 3,396.10 4,023.76 2,615.10 5,963,972.95 614,603.59 0.00 4,794.26 6,700.00 73.22 33.03 3,512.27 3,424.97 4,104.03 2,667.28 5,964,053.99 614,654.56 0.00 4,889.91 6,800.00 73.22 33.03 3,541.15 3,453.85 4,184.30 2,719.46 5,964,135.02 614,705.54 0.00 4,985.55 6,900.00 73.22 33.03 3,570.02 3,482.72 4,264.57 2,771.64 5,964,216.06 614,756.51 0.00 5,081.20 7,000.00 73.22 33.03 3,598.89 3,511.59 4,344.84 2,823.82 5,964,297.09 614,807.48 0.00 5,176.85 7,100.00 73.22 33.03 3,627.77 3,540.47 4,425.11 2,876.00 5,964,378.12 614,858.46 0.00 5,272.50 7,200.00 73.22 33.03 3,656.64 3,569.34 4,505.39 2,928.18 5,964,459.16 614,909.43 0.00 5,368.15 7,300.00 73.22 33.03 3,685.51 3,598.21 4,585.66 2,980.36 5,964,540.19 614,960.40 0.00 5,463.79 7,400.00 73.22 33.03 3,714.38 3,627.08 4,665.93 3,032.54 5,964,621.23 615,011.38 0.00 5,559.44 7,500.00 73.22 33.03 3,743.26 3,655.96 4,746.20 3,084.72 5,964,702.26 615,062.35 0.00 5,655.09 7,600.00 73.22 33.03 3,772.13 3,684.83 4,826.47 3,136.90 5,964,783.29 615,113.32 0.00 5,750.74 7,700.00 73.22 33.03 3,801.00 3,713.70 4,906.75 3,189.08 5,964,864.33 615,164.30 0.00 5,846.39 7,721.81 73.22 33.03 3,807.30 3,720.00 4,924.25 3,200.46 5,964,882.00 615,175.41 0.00 5,867.25 UG3 7,800.00 73.22 33.03 3,829.88 3,742.58 4,987.02 3,241.26 5,964,945.36 615,215.27 0.00 5,942.04 7,900.00 73.22 33.03 3,858.75 3,771.45 5,067.29 3,293.44 5,965,026.40 615,266.24 0.00 6,037.68 8,000.00 73.22 33.03 3,887.62 3,800.32 5,147.56 3,345.62 5,965,107.43 615,317.22 0.00 6,133.33 8,100.00 73.22 33.03 3,916.50 3,829.20 5,227.83 3,397.81 5,965,188.46 615,368.19 0.00 6,228.98 8,200.00 73.22 33.03 3,945.37 3,858.07 5,308.10 3,449.99 5,965,269.50 615,419.16 0.00 6,324.63 8,300.00 73.22 33.03 3,974.24 3,886.94 5,388.38 3,502.17 5,965,350.53 615,470.14 0.00 6,420.28 8,400.00 73.22 33.03 4,003.11 3,915.81 5,468.65 3,554.35 5,965,431.57 615,521.11 0.00 6,515.93 8,500.00 73.22 33.03 4,031.99 3,944.69 5,548.92 3,606.53 5,965,512.60 615,572.08 0.00 6,611.57 8,600.00 73.22 33.03 4,060.86 3,973.56 5,629.19 3,658.71 5,965,593.63 615,623.06 0.00 6,707.22 8,700.00 73.22 33.03 4,089.73 4,002.43 5,709.46 3,710.89 5,965,674.67 615,674.03 0.00 6,802.87 8,800.00 73.22 33.03 4,118.61 4,031.31 5,789.74 3,763.07 5,965,755.70 615,725.00 0.00 6,898.52 8,900.00 73.22 33.03 4,147.48 4,060.18 5,870.01 3,815.25 5,965,836.74 615,775.98 0.00 6,994.17 9,000.00 73.22 33.03 4,176.35 4,089.05 5,950.28 3,867.43 5,965,917.77 615,826.95 0.00 7,089.82 9,100.00 73.22 33.03 4,205.22 4,117.92 6,030.55 3,919.61 5,965,998.80 615,877.92 0.00 7,185.46 9,200.00 73.22 33.03 4,234.10 4,146.80 6,110.82 3,971.79 5,966,079.84 615,928.90 0.00 7,281.11 9,300.00 73.22 33.03 4,262.97 4,175.67 6,191.09 4,023.97 5,966,160.87 615,979.87 0.00 7,376.76 9,400.00 73.22 33.03 4,291.84 4,204.54 6,271.37 4,076.15 5,966,241.91 616,030.84 0.00 7,472.41 8/19/2010 10:39:45AM Page 5 COMPASS 2003.16 Build 73 HALLIBURTOI� Standard Propo Drilling Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-220 Design: W-220 Wp 9.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +El-W Northing Easting DLS Vert Section (ft) (°) (°) (ft) ft (ft) (ft) (ft) (ft) 4,233.42 9,500.00 73.22 33.03 4,320.72 4,233.42 6,351.64 4,128.33 5,966,322.94 616,081.81 0.00 7,568.06 9,592.07 73.22 33.03 4,347.30 4,260.00 6,425.55 4,176.38 5,966,397.55 616,128.75 0.00 7,656.12 UG1 9,600.00 73.22 33.03 4,349.59 4,262.29 6,431.91 4,180.51 5,966,403.97 616,132.79 0.00 7,663.70 9,700.00 73.22 33.03 4,378.46 4,291.16 6,512.18 4,232.69 5,966,485.01 616,183.76 0.00 7,759.35 9,800.00 73.22 33.03 4,407.33 4,320.03 6,592.45 4,284.87 5,966,566.04 616,234.73 0.00 7,855.00 9,900.00 73.22 33.03 4,436.21 4,348.91 6,672.73 4,337.05 5,966,647.08 616,285.71 0.00 7,950.65 10,000.00 73.22 33.03 4,465.08 4,377.78 6,753.00 4,389.23 5,966,728.11 616,336.68 0.00 8,046.30 10,100.00 73.22 33.03 4,493.95 4,406.65 6,833.27 4,441.41 5,966,809.14 616,387.65 0.00 8,141.95 10,200.00 73.22 33.03 4,522.83 4,435.53 6,913.54 4,493.59 5,966,890.18 616,438.63 0.00 8,237.59 10,300.00 73.22 33.03 4,551.70 4,464.40 6,993.81 4,545.77 5,966,971.21 616,489.60 0.00 8,333.24 10,400.00 73.22 33.03 4,580.57 4,493.27 7,074.08 4,597.95 5,967,052.25 616,540.57 0.00 8,428.89 10,500.00 73.22 33.03 4,609.44 4,522.14 7,154.36 4,650.13 5,967,133.28 616,591.55 0.00 8,524.54 10,600.00 73.22 33.03 4,638.32 4,551.02 7,234.63 4,702.31 5,967,214.31 616,642.52 0.00 8,620.19 10,700.00 73.22 33.03 4,667.19 4,579.89 7,314.90 4,754.49 5,967,295.35 616,693.49 0.00 8,715.84 10,769.65 73.22 33.03 4,687.30 4,600.00 7,370.81 4,790.84 5,967,351.79 616,729.00 0.00 8,782.45 UG_Ma 10,800.00 73.22 33.03 4,696.06 4,608.76 7,395.17 4,806.67 5,967,376.38 616,744.47 0.00 8,811.48 10,900.00 73.22 33.03 4,724.94 4,637.64 7,475.44 4,858.86 5,967,457.42 616,795.44 0.00 8,907.13 10,977.46 73.22 33.03 4,747.30 4,660.00 7,537.62 4,899.27 5,967,520.18 616,834.92 0.00 8,981.22 UG_Mb1 11,000.00 73.22 33.03 4,753.81 4,666.51 7,555.72 4,911.04 5,967,538.45 616,846.41 0.00 9,002.78 11,054.77 73.22 33.03 4,769.62 4,682.32 7,599.68 4,939.61 5,967,582.83 616,874.33 0.00 9,055.16 11,054.80 73.22 33.03 4,769.63 4,682.33 7,599.70 4,939.63 5,967,582.86 616,874.35 0.00 9,055.20 Start DLS 4.00 11054.8'MD 11,100.00 72.06 31.57 4,783.12 4,695.82 7,636.17 4,962.68 5,967,619.66 616,896.85 4.00 9,098.31 11,159.81 70.54 29.62 4,802.30 4,715.00 7,684.92 4,991.52 5,967,668.83 616,924.95 4.00 9,154.95 UG_Mb2 11,200.00 69.53 28.29 4,816.03 4,728.73 7,717.97 5,009.81 5,967,702.15 616,942.75 4.00 9,192.72 11,300.00 67.06 24.90 4,853.02 4,765.72 7,801.02 5,051.41 5,967,785.80 616,983.10 4.00 9,285.39 11,372.52 65.32 22.36 4,882.30 4,795.00 7,861.79 5,078.02 5,967,846.96 617,008.80 4.00 9,351.25 UG_Mc 11,400.00 64.67 21.39 4,893.91 4,806.61 7,884.90 5,087.29 5,967,870.20 617,017.73 4.00 9,375.87 11,500.00 62.37 17.73 4,938.52 4,851.22 7,969.21 5,117.28 5,967,954.94 617,046.45 4.00 9,463.73 11,518.81 61.94 17.03 4,947.30 4,860.00 7,985.08 5,122.24 5,967,970.88 617,051.18 4.00 9,479.93 SB_Na 11,581.18 60.57 14.65 4,977.30 4,890.00 8,037.68 5,137.18 5,968,023.69 617,065.33 4.00 9,532.83 SB_Nb 11,600.00 60.16 13.93 4,986.60 4,899.30 8,053.53 5,141.22 5,968,039.60 617,069.13 4.00 9,548.53 11,641.05 59.29 12.32 5,007.30 4,920.00 8,088.05 5,149.26 5,968,074.23 617,076.66 4.00 9,582.36 SB_Nc 11,660.51 58.88 11.54 5,017.30 4,930.00 8,104.39 5,152.72 5,968,090.62 617,079.86 4.00 9,598.19 SB_Ne 11,700.00 58.07 9.95 5,037.95 4,950.65 8,137.46 5,158.99 5,968,123.78 617,085.65 4.00 9,629.87 11,800.00 56.11 5.80 5,092.29 5,004.99 8,220.58 5,170.52 5,968,207.05 617,095.94 4.00 9,707.34 8/19/2010 10:39:45AM Page 6 COMPASS 2003.16 Build 73 Sperry Drilling . HALLIBURTO. Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-220 Design: W-220 Wp 9.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (1 (°) (ft) ft (ft) (ft) (ft) (ft) 5,015.00 11,817.87 55.77 5.04 5,102.30 5,015.00 8,235.32 5,171.92 5,968,221.81 617,097.12 4.00 9,720.75 SB_OA 11,900.00 54.29 1.46 5,149.38 5,062.08 8,302.49 5,175.75 5,968,289.03 617,099.94 4.00 9,780.57 11,905.00 54.21 1.23 5,152.30 5,065.00 8,306.55 5,175.85 5,968,293.08 617,099.98 4.00 9,784.12 SB_OBa 11,913.50 54.06 0.86 5,157.28 5,069.98 8,313.44 5,175.97 5,968,299.97 617,100.00 4.00 9,790.12 End Directional 11913.5'MD 11,913.53 54.06 0.85 5,157.30 5,070.00 8,313.46 5,175.97 5,968,300.00 617,100.00 4.00 9,790.14 W-220 T1 11,964.64 54.06 0.85 5,187.30 5,100.00 8,354.84 5,176.59 5,968,341.38 617,100.00 0.00 9,826.10 SB_OBb 12,000.00 54.06 0.85 5,208.05 5,120.75 8,383.46 5,177.02 5,968,370.00 617,100.00 0.00 9,850.98 12,058.35 54.06 0.85 5,242.30 5,155.00 8,430.70 5,177.72 5,968,417.24 617,100.00 0.00 9,892.04 SB_OBc 12,100.00 54.06 0.85 5,266.75 5,179.45 8,464.42 5,178.22 5,968,450.96 617,100.00 0.00 9,921.34 12,152.06 54.06 0.85 5,297.30 5,210.00 8,506.56 5,178.85 5,968,493.10 617,100.00 0.00 9,957.97 SB_OBd 12,160.58 54.06 0.85 5,302.30 5,215.00 8,513.46 5,178.95 5,968,500.00 617,100.00 0.00 9,963.97 W-220 T2 12,160.60 54.06 0.85 5,302.31 5,215.01 8,513.48 5,178.95 5,968,500.02 617,100.00 0.00 9,963.98 Start DLS 4.00 12160.6'MD 12,161.80 54.01 0.85 5,303.02 5,215.72 8,514.45 5,178.97 5,968,500.99 617,100.00 4.14 9,964.83 End Directional 12161.8'MD 12,161.81 54.01 0.85 5,303.02 5,215.72 8,514.46 5,178.97 5,968,501.00 617,100.00 4.07 9,964.83 12,200.00 54.01 0.85 5,325.47 5,238.17 8,545.35 5,179.43 5,968,531.89 617,100.00 0.00 9,991.69 12,262.68 54.01 0.85 5,362.30 5,275.00 8,596.06 5,180.18 5,968,582.61 617,099.99 0.00 10,035.76 SB_OBe 12,300.00 54.01 0.85 5,384.23 5,296.93 8,626.26 5,180.63 5,968,612.80 617,099.99 0.00 10,062.00 12,339.26 54.01 0.85 5,407.30 5,320.00 8,658.02 5,181.10 5,968,644.56 617,099.99 0.00 10,089.61 SB_OBf 12,400.00 54.01 0.85 5,442.99 5,355.69 8,707.16 5,181.83 5,968,693.70 617,099.99 0.00 10,132.32 12,415.84 54.01 0.85 5,452.30 5,365.00 8,719.97 5,182.02 5,968,706.52 617,099.98 0.00 10,143.46 Base_SB_OBf 12,500.00 54.01 0.85 5,501.76 5,414.46 8,788.06 5,183.03 5,968,774.61 617,099.98 0.00 10,202.64 12,512.80 54.01 0.85 5,509.28 5,421.98 8,798.42 5,183.18 5,968,784.97 617,099.98 0.00 10,211.64 TD at 12512.8'MD 12,512.84 54.01 0.85 5,509.30 5,422.00 8,798.45 5,183.18 5,968,785.00 617,099.98 0.00 10,211.67 8/19/2010 10:39:45AM Page 7 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTOIS Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-220 Design: W-220 Wp 9.0 Targets Target Name -hit/miss target Dip Angle Dip Dir. TVD +N/-S +E/-W Northing Easting -Shape (0) (0) (ft) (ft) (ft) (ft) (ft) W-220 T2 0.00 0.00 5,302.30 8,513.46 5,178.95 5,968,500.00 617,100.00 -plan hits target center -Circle(radius 150.00) 1 W-220 T1 0.00 0.00 5,157.30 8,313.46 5,175.97 5,968,300.00 617,100.00 -plan hits target center -Circle(radius 150.00) W-220 Flt 1 0.00 0.00 2,517.30 580.32 589.77 5,960,500.00 612,630.00 -plan misses target center by 350.85ft at 2588.28ft MD(2269.63 TVD,822.54 N,534.21 E) -Polygon Point 1 2,517.30 580.32 589.77 5,960,500.00 612,630.00 Point 2 2,517.30 1,321.45 858.87 5,961,245.00 612,888.00 Point 3 2,517.30 2,810.27 1,293.16 5,962,740.00 613,300.00 Point 4 2,517.30 1,321.45 858.87 5,961,245.00 612,888.00 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (1 (") 2,188.08 2,006.50 13 3/8" 13-3/8 16 6,219.60 3,373.57 9 5/8" 9-5/8 12-1/4 12,512.84 5,509.30 7" 7 8-3/4 I 8/19/2010 10:39:45AM Page 8 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTO Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan W-220 Company: BP-Alaska TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Project: Prudhoe Bay MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site: PB W Pad North Reference: True Well: Plan W-220 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-220 Design: W-220 Wp 9.0 Formations Measured Vertical Vertical Dip Depth Depth Depth SS Dip Direction (ft) (ft) ft Name Lithology (°) (°) 1,318.82 1,292.30 SV6 382.30 382.30 G1 2,128.02 1,962.30 Base Permafrost 11,159.81 4,802.30 UG_Mb2 7,721.81 3,807.30 UG3 11,660.51 5,017.30 SB_Ne 5,089.58 3,047.30 SV1 11,372.52 4,882.30 UG_Mc 11,817.87 5,102.30 SBOA 6,492.28 3,452.30 UG4A 11,964.64 5,187.30 SB_OBb 11,518.81 4,947.30 SB_Na 11,581.18 4,977.30 SB_Nb 11,905.00 5,152.30 SB_OBa 3,981.27 2,727.30 SV2 12,339.26 5,407.30 SB_OBf 12,262.68 5,362.30 SB_OBe 11,641.05 5,007.30 SB_Nc 12,415.84 5,452.30 Base_SB_OBf 2,306.17 2,092.30 SV4 12,058.35 5,242.30 SB_OBc 3,305.90 2,532.30 SV3 2,107.64 1,947.30 SV5 6,336.42 3,407.30 UG4 10,977.46 4,747.30 UG_Mb1 10,769.65 4,687.30 UG_Ma 12,152.06 5,297.30 SB_OBd 1,980.49 1,852.30 EOCU 9,592.07 4,347.30 UG1 Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (ft) (ft) (ft) (ft) Comment 325.00 325.00 0.00 0.00 KOP Start Build 2.00 33 RT TF 575.00 574.68 9.14 5.94 Increase Build 2.50 575.0'MD 2,079.38 1,926.50 509.29 330.74 End Directional 2079.4'MD 2,238.00 2,043.24 599.35 389.22 Start DLS 4.00 2238.0'MD 3,003.20 2,444.90 1,136.54 738.28 End Directional 3003.2'MD 11,054.80 4,769.63 7,599.70 4,939.63 Start DLS 4.00 11054.8'MD 11,913.50 5,157.28 8,313.44 5,175.97 End Directional 11913.5'MD 12,160.60 5,302.31 8,513.48 5,178.95 Start DLS 4.00 12160.6'MD 12,161.80 5,303.02 8,514.45 5,178.97 End Directional 12161.8'MD 12,512.80 5,509.28 8,798.42 5,183.18 TD at 12512.8'MD 8/19/2010 10:39:45AM Page 9 COMPASS 2003.16 Build 73 C■. 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N O 1 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan W-220 Project: Prudhoe Bay TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Reference Site: PB W Pad MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site Error: 0.00ft North Reference: True Reference Well: Plan W-220 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wel lbore Plan W-220 Database: EDM.16-Anc Prod-WH24P Reference Design: W-220 WP9.0 Offset ND Reference: Offset Datum Reference W-220 WP9.0 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,447.85ft Error Surface: Elliptical Conic Survey Tool Program Date 8/11/2010 From To (ft) (ft) Survey(Welibore) Tool Name Description 34.30 1,250.00 W-220 WP9.0(Plan W-220) GYD-GC-MS Gyrodata gyrocompassing m/s 1,250.00 2,188.10 W-220 WP9.0(Plan W-220) MWD+IFR+MS MWD+IFR+Multi Station 2,188.10 6,306.30 W-220 WP9.0(Plan W-220) MWD+IFR+MS MWD+IFR+Multi Station 6,306.30 12,512.84 W-220 WP9.0(Plan W-220) 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 W Pad Plan W-202-Plan W-202 OBd-Plan#6 W-202 0 379.33 375.00 91.61 7.14 84.47 Pass-Major Risk Plan W-202-Plan W-202L1 OBc-Plan#6 W-202 379.33 375.00 91.61 7.14 84.47 Pass-Major Risk Plan W-202-Plan W-202L2 OBa-Plan#6 W-202 379.33 375.00 91.61 7.14 84.47 Pass-Major Risk Plan W-219-Plan W-219-W-219 WP6.0 373.31 375.00 123.66 7.02 116.65 Pass-Major Risk Plan W-221 -Plan W-221 -Plan#5 W-221 355.81 350.00 46.17 6.67 39.50 Pass-Major Risk Plan W-223-Plan W-223-W-223 Wp7.0a 525.56 525.00 15.23 11.06 4.17 Pass-Major Risk W-200-W-200-W-200 377.24 375.00 140.48 6.72 133.76 Pass-Major Risk W-200-W-200PB1 -W-200PB1 377.24 375.00 140.48 6.86 133.61 Pass-Major Risk W-201 -W-201 -W-201 355.06 350.00 106.06 6.19 99.88 Pass-Major Risk W-201_DIMS-W-201 -W-201 34.30 34.10 105.27 1.21 104.06 Pass-Major Risk W-204-W-204-W-204 330.64 325.00 77.23 6.94 70.29 Pass-Major Risk W-204-W-204L1 -W-204L1 330.64 325.00 77.23 6.94 70.29 Pass-Major Risk W-204-W-204L2-W-204L2 330.64 325.00 77.23 6.94 70.29 Pass-Major Risk W-204-W-204PB1 -W-204PB1 330.64 325.00 77.23 6.94 70.29 Pass-Major Risk W-213-W-213-W-213 404.50 400.00 60.35 7.47 52.88 Pass-Major Risk W-214-W-214-W-214 380.60 375.00 46.18 7.50 38.69 Pass-Major Risk W-214_DIMS-W-214-W-214 87.30 87.30 45.10 1.84 43.25 Pass-Major Risk W-216-W-216-W-216 776.54 775.00 28.25 14.76 13.58 Pass-Major Risk W-216_DIMS-W-216-W-216 87.30 87.30 30.45 1.84 28.61 Pass-Major Risk W-217-W-217-W-217 681.90 675.00 14.62 11.59 3.06 Pass-Major Risk W-217-W-217PB1 -W-217PB1 681.90 675.00 14.62 11.70 2.95 Pass-Major Risk W-217_DIMS-W-217-W-217 87.30 87.30 14.58 1.84 12.73 Pass-Major Risk W-217_DIMS-W-217PB1 -W-217 PB1 87.30 87.30 14.58 1.84 12.73 Pass-Major Risk W-218-W-218-W-218 255.57 250.00 30.85 4.54 26.32 Pass-Major Risk W-218 DIMS-W-218-W-218 87.30 87.30 29.58 1.84 27.74 Pass-Major Risk W-23--W-23-W-23 416.00 425.00 212.65 9.10 203.55 Pass-Major Risk W-23-W-23A-W-23A 400.00 400.00 212.22 8.67 203.54 Pass-Major Risk W-24-W-24-W-24 353.81 350.00 175.44 6.54 168.89 Pass-Major Risk 8/11/2010 3:42:48PM Page 2 of 3 COMPASS 2003.16 Build 71 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan W-220 Project: Prudhoe Bay TVD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Reference Site: PB W Pad MD Reference: W-220 Planned @ 87.30ft(53'GL+34.3 KB) Site Error: O.00ft North Reference: True Reference Well: Plan W-220 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan W-220 Database: EDM .16-Anc Prod-WH24P Reference Design: W-220 WP9.0 Offset TVD Reference: Offset Datum Reference Depths are relative to W-220 Planned @ 87.30ft(53'GL+ Coordinates are relative to: Plan W-220 Offset Depths are relative to Offset Datum Coordinate System is US State Plane 1927(Exact solution),Alaska Zone 04 Central Meridian is 150°0'0.000 W° Grid Convergence at Surface is:0.85° Ladder 4. 1 400 _ _ _j_ _ __ 1 tr.. , Y411 r ir: rA . ..... I-- 1050 " A J 0 I . f I 1-fl I ' 'C. I ' , I O Tel j(B I,, /A Q I i/ r Cf) 700 : i 1I y I I i� .11,.rfN:, ' r� I I 1 1 a) 1 .•!:1F i' 1 !r1 U J_ t 4.4::' _ ` L .r, J - J _ J J O I (•. II a I I I I E. I i - I I I I w 350 24 . r.� (, 1' .f1;:,}' ' r I r `I I j AA,KA 1 {y .... ''-I I I I I I 1 1 I I I I 1 I I I I I 1 I I I I I I I I I I I I _...n'••"ter I I 1 I I 0 2000 4000 6000 8000 10000 12000 M easured Depth(2000 ftlin) L E G E N D 202.PIan W-2020Bd,Plan N6W-202 OBd'O -0- W-204.W-204.W-204 V2 -a- W-217.W-217PB1,W-217PB1 V0 202,PIanW-202L10Bc.P Ian N6W-202L1 OBcV0 -e- W-204.W-204L1,W-204L1V6 W-217_DMS,W-217.W-217V0 202,PlanW-202L2 OBa,PlanN6W-202L20BaVD W-204,W-204L2,W-204L2V8 -8- W-217_DMS,W-217P B1,W-217 PB1 VO 21 a,Plan W-219,W-219WP6DVO -- W-204.W-204PB1,W-204P91V2 -X- W-218,W-218,W-218 V1 221,PtanW-221,Pfan#5W-2211,0 -A- W-213.W-213,W-213V13 r W-218_DMS,W-218,W-218 VD 223.PIanW-223,W-223Wp7Da'O - W-214.W-214,W-214V16 W-23.W-23.W-23 V5 N-400,W-200 V2 $ W-214_DMS,W-214,W-214V0 W-23,W-23A,W-23AV8 N-WOPB1,W-200P81 VI1 -A- W-216.W-216,W-216 V7 -'0- W-24,W-24.W-24 V2 111-4O1,W-201 VW -}- W-216_DMS,W-216.W-218 V0 --@- W-220 WP9D 8/11/2010 3:42:48PM Page 3 of 3 COMPASS 2003.16 Build 71 U) a. > d N L. 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I 1 1 lei E E -- III,li!lI " i u ii i Si i 1/4 mi. radius Polaris Pool — Markers Circle -UG_Mc (Top of Pool) Centered on 0 -SB_OBa W-220 OBa \ -4787 I N 5,972,000 - 3225044 % -SB_OBf Base (Base) TW-C s- • 5,970,000 W-220 wp09 -- -- 0 0 A o , VU-218 — 5,968,000 •-5256 /11(\' •-4944 -4643 IIW-217 5,966,000 112111 1 614,000 616,000 618,000 620,000 622,000 Schrader Bluff SB_OBa Depth Map (20' contour interval) No Wells within % mile of W-220 In the Schrader Bluff Pool _ 0 O 0 O c M . 0o N • o O o r N- . 0 No N N rt W / -- V Q o O r o N CD _O C N O N. O •:i- ,- LU •+ Q W Q. U E 0 0 x O W o L O CD LO .5 NNe ar Q IN. 1 Q CL 0 0 o ii O O O O O O 0 Alaska Department of Natural Resources Land Administration System Page 1 of,' I Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28263 Printable Case File Summary See Township,Range, Section and Acreage? New Search 0 Yes Q No LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28263 ''1'4 Search for Status Plat Updates As of 09/03/2010 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: 10/06/2009 Case Subtype: NS NORTH SLOPE Last Transaction: CHNGTEXT CHANGE LEGAL TEXT Meridian: U Township: 011N Range: 012E Section: 15 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 012E Section: 16 Section Acres: 640 Meridian: U Township: O11N Range: 012E Section: 21 Section Acres: 640 Meridian: U Township: O11N Range: 012E Section: 22 Section Acres: 640 Legal Description 05-28-1965 *** SALE NOTICE LEGAL DESCRIPTION *** C14-59 T11N, R12E, UM 15, 16, 21,22 2560.00 11-28-1969 SEGMENT 1 T11N, R12E, UM SECTION 15: 640 ACRES SECTION 16: 640 ACRES http://dnr.alaska.gov/projects/las/Case Summary.cfin?FileType=ADL&FileNumber=28263... 9/3/2010 Alaska Department of Natural Resources Land Administration System Page 1 of)/( Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28261 Printable Case File Summary See Township, Range, Section and Acreage? New Search 0 Yes 0 No LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28261 Search for Status Plat Updates As of 09/03/2010 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: 011N Range: 012E Section: 03 Section Acres: 640 Search Plats Meridian: U Township: 011N Range: 012E Section: 04 Section Acres: 640 Meridian: U Township: O11N Range: 012E Section: 09 Section Acres: 640 Meridian: U Township: 011N Range: 012E Section: 10 Section Acres: 640 Legal Description 05-28-1965 ***SALE NOTICE LEGAL DESCRIPTION*** C14-56 11 N 12E UM 3,4,9,10 2560.00 04-01-1977*** UNITIZED LEGAL DESCRIPTION*** PRUDHOE BAY UNIT TRACT 48 http://dnr.alaska.gov/proj ects/las/Case_Summary.cfm?FileType=ADL&FileNumber=28261... 9/3/2010 TRANSMITTAL LETTER CHECKLIST WELL NAME PTD# o?IOJv?� Development )7 Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: /1;:e1444/041--?i?) POOL: , 7 43C/S a'' 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 J i`'. m U) 0) 0 a) Q O CD a) 6 o @ .0 _ 7 • a C 0 a) cc 0 w O o) c a E O n O N co m 2 Ui L Cl_ '3 3 = o N 0 o >_ )n co O Q > O N J co o m co -a o 35 E > cri 2 o 2 N w O 0 QQ - r co r2) Ui Q n a `m a) r c o oo To" E 3 CV N, 3 in N M O -C - O >- o 3 .co o 'a o co n v a m Q 0. Q o v O c°n . o E a) ) a) N CO o 3 CO Lu O x .0 n E o ii m Ui N „ M a) _ o _0 0 U N CU I 0' v 3 a) aa) > n _ .c 3 -o • oo m 0 n N m Z �n cc d O w 0) C U) a a) '��' C co < c co m o- '7 -0 0 "O m m a) C O m a) O C O ` U ) C > O h n _N N_ E a) O O 'O Q m m m W 0. m 0 m �) a) °- w 3 E E a) Z co .a a) .6 E a) o II 0 OU 0 co a o oz m < o 0 62 a 0 2 < I < 2 w a cc w co < 0 N a) CO CO CO CO CO CO CO CO CO CO a) < < a) < CO 0 CO a) a) < a) CO CO CO a) N CO CO CO 0 < < < < ° z � >- > } >- >- >- } } >- >- } >- >- zz rz >- z >- r >- zr >- >- >- r )- r >- r zzzzz 1 T i- --..-7) O $2 Nit _m CO ` O n o C m ° ) E E 3 - E a) o U U •Z C a > co c 0 r o _ o 1 ° C T 0 0 m 2 o f _ 3 0 o 0 3 co m co O V U C C _ o C @ -0 U c N O E 0 oU co co Q rn 2 E ur a �) O ul 0 O U U U X (n (>0 'C o a) N 0 0. o U u a) a) N Q' 7 O .w.� C T N co O .0 O Q N a 'o C Q N 2 C N m V N co N . a )) JO .. co -o m a o di N Q - a a) is ° o E a°i m 0 m -0 0 o CO° w aa) J CO ._ L o) i N m = 3 O � C 0) .0 C 0 7 0- _ O < co co a) a) 0) w - D o C 'O o a) C -0 m a) Q o ` a) m o U 0) Q) C a) U) in CO o .> U > "0 O- a) V V C C O o co a) 0 Q E E = -o c c E m a) `o co c o o .0 I- c o u5 c a) - C a) w 0 2- N co C >. 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CO E m O O o) a) -- °. co V) 0 N- 'C co o) 0- co. m m O O U 2 o) T . 3 m "6 N N O 0.iti a) 0 m a) c c o. n N@ ° a) a) a) 3 c o c c) a o c m n Y m o ° o a) a�i > " a) it J U) .0 a 'O 0 U • N d .fl -0 -o L a) N a) a) > co .0 N O" U) 0 O U E a a) E a) m m o o .0 c c m o c a o o 'w w° = 3 0 a 0 N C 0 c m C ao) c o m X 7 m m (s a) m m E cp 3 7 a) O U m m - a) _ � 2 'O a) m _ C U m v) O 0 c I . w c 3 U U U aci m ° ° 0 0 E U w 0 c o m 0 0 — -° m o m 0 u ° E a C 0 °) U o (n d _.. 0 0 0 O .0 N c9 Q O 0 7 U > > '3 O) C N 7 N o) w w a) 3 0 cs ...� O a) as N J m E m .c a) a) aa) a) a) E E C a) 3 , c C 'tt F F H N a0 > c a. a o Y`o a 0 E co co m C io T a) a) E o -o 0- a a) a) m o o c 2 2 2 m o m -o m 0 0 s a) a) m 'a) a) o 0 V 0 D co '. 0 0 d a U ¢ a z 0 co 0 0 0 c� a - Q 4- o m m 0 ° g a 0 0) 0) U W ° N co V co r W O 0 s- N M V I O I.- W 0 O N N N M V N O N r N N M M N M M M 2 O N- W M V U H 0 0 0 " 2 O C N O 16 ON CO N U 0 ii. CO m m O N W 1` m C O) O) o . • E a) > O E J 4i •c a cn c a cn ° a cn U W o E O. o o) p. -1 O Q 0 pp as a Q w acs LI as • Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Mon Feb 21 17: 19:49 2011 Reel Header Service name LISTPE Date 11/02/21 Origin STS Reel Name UNKNOWN Continuation Number 01 Previous Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Tape Header Service name LISTPE Date 11/02/21 Origin STS Tape Name UNKNOWN Continuation Number 01 Previous Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS WELL NAME: W-220i API NUMBER: 500292343200 OPERATOR: BP Exploration (Alaska) , Inc. LOGGING COMPANY: Sperry Drilling TAPE CREATION DATE: 21-FEB-11 JOB DATA MWD RUN 1 MWD RUN 2 MWD RUN 3 JOB NUMBER: AKMW0007521066 AKMW0007521066 AKMW0007521066 LOGGING ENGINEER: JACK KLEINHA JACK KLEINHA JACK KLEINHA OPERATOR WITNESS: JOEY LEBLANC JOEY LEBLANC JOEY LEBLANC MWD RUN 4 MWD RUN 6 MWD RUN 7 JOB NUMBER: AKMW0007521066 AKMW0007521066 AKMW0007521066 LOGGING ENGINEER: JACK KLEINHA SHAWN POLAK SHAWN POLAK OPERATOR WITNESS: JOEY LEBLANC BLAIR NEUFEL BLAIR NEUFEL MWD RUN 8 MAD RUN 8 JOB NUMBER: AKMW0007521066 AKMW0007521066 LOGGING ENGINEER: SHAWN POLAK SHAWN POLAK OPERATOR WITNESS: BLAIR NEUFEL BLAIR NEUFEL SURFACE LOCATION SECTION: 21 TOWNSHIP: 11N RANGE: 12E FNL: FSL: 4933 FEL: 1175 FWL: ELEVATION (FT FROM MSL 0) 2r v -rah 20�5� KELLY BUSHING: DERRICK FLOOR: 87.30 GROUND LEVEL: 53.40 WELL CASING RECORD OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 16.000 20.000 114.0 2ND STRING 12.250 13.375 2342.0 3RD STRING 8.750 9.625 6228.0 PRODUCTION STRING REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH (TVD) . ONLY INVERT/ REVERT SECTIONS (IF ANY) GREATER THAN 30' TVD ARE PRESENTED. 3. THIS OPEN-HOLE SIDETRACK EXITED W-220i PB2 AT 2350'MD/2046'TVD, WITHIN THE MWD RUN 4 INTERVAL. 4 . MWD RUNS 1, 3, 4, 6,8 COMPRISED DIRECTIONAL, DUAL GAMMA RAY (DGR) UTILIZING GEIGER-MUELLER TUBE DETECTORS, AND DRILLSTRING DYNAMICS SENSOR (DDSr) . MWD RUNS 1, 3, 4, 6 ALSO INCLUDED AT-BIT INCLINATION (ABI) . MWD RUN 8 ALSO INCLUDED ELECTROMAGNETIC WAVE RESISTIVITY- PHASE 4 (EWR-P4) , PRESSURE WHILE DRILLING (PWD) , COMPENSATED THERMAL NEUTRON POROSITY (CTN) AND AZIMUTHAL LITHO-DENSITY (ALD) . ROTATED MAD PASS DATA (MWD RUN 8) WERE ACQUIRED FROM ABOUT 12186'MD TO ABOUT 11060'MD WHILE POOH. MAD DATA ARE PRESENTED SEPARATELY. NO MWD TOOLS WERE INCLUDED IN RUNS 2 & 7 BUT ROPA DATA WERE ACQUIRED AND ARE PRESENTED. 5. MERGED DIGITAL AND LOG DATA WERE SHIFTED TO A SCHLUMBERGER CASED- HOLE GAMMA RAY LOG RUN IN W-2201 ON 27 DECEMBER 2010. SHIFTING INSTRUCTIONS WERE PROVIDED BY D. DORTCH (SAIC/BP) VIA AN E-MAIL DATED 2 FEBRUARY 2011, QUOTING AUTHORIZATION FROM WALTER TIFENTAL (BP) . MAD DATA WERE CORRECTED (SHIFTED) TO THE MWD DATA. ANNOTATIONS AND LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTHS. 6. MWD RUNS 1-4, 6-8 REPRESENT WELL W-220i WITH API# 50-029-23432-00. THIS WELL REACHED A TOTAL DEPTH (TD) OF 12,581'MD/5575'TVD. ROPA = AVERAGE RATE OF PENETRATION WHILE DRILLING RSPD = TOOL RUNNING SPEED WHEN NOT DRILLING (MAD PASSING) DGRC = DGR COMBINED GAMMA RAY RO9P = 9 INCH PHASE RESISTIVITY R15P = 15 INCH PHASE RESISTIVITY R27P = 27 INCH PHASE RESISTIVITY R39P = 39 INCH PHASE RESISTIVITY EWXT = EWR FORMATION EXPOSURE TIME TNPS = CTN POROSITY - SANDSTONE TNFA = CTN FAR AVERAGE COUNT RATE TNNA = CTN NEAR AVERAGE COUNT RATE ACDL = ALD LCRB COMPENSATED DENSITY ADCL = ALD LCRB DENSITY CORRECTION APEL = ALD LCRB Pe FACTOR CDBQ = ALD COMP. DENSITY BINNED DATA - BOTTOM QUADRANT CDTQ = ALD COMP. DENSITY BINNED DATA - TOP QUADRANT CDLQ = ALD COMP. DENSITY BINNED DATA - LEFT QUADRANT CDRQ = ALD COMP. DENSITY BINNED DATA - RIGHT QUADRANT DCBQ = ALD DEN. CORRECTION BINNED DATA - BOTTOM QUADRANT DCTQ = ALD DEN. CORRECTION BINNED DATA - TOP QUADRANT DCLQ = ALD DEN. CORRECTION BINNED DATA - LEFT QUADRANT DCRQ = ALD DEN. CORRECTION BINNED DATA - RIGHT QUADRANT PEBQ = ALD Pe FACTOR BINNED DATA - BOTTOM QUADRANT PETQ = ALD Pe FACTOR BINNED DATA - TOP QUADRANT PELQ = ALD Pe FACTOR BINNED DATA - LEFT QUADRANT PERQ = ALD Pe FACTOR BINNED DATA - RIGHT QUADRANT AHSI = ALD HOLE SIZE INDICATOR ALRP = ALD RPM (NON-SLIDE INDICATOR) PARAMETERS USED IN POROSITY LOG PROCESSING: HOLE SIZE: FIXED AT 8.75 INCHES MUD WEIGHT: 9.0 - 9.2 PPG WHOLE MUD CHLORIDES: 1600 - 2900 PPM FORMATION WATER SALINITY: 11500 PPM CL FLUID DENSITY: 1.0 G/CC MATRIX DENSITY: 2. 65 G/CC LITHOLOGY: SANDSTONE ALL DATA CURVES ARE SMOOTHED TO A STEP OF 0.5 FT, WITH A WINDOW OF 0. 6 FT, EXCEPT FOR SROP AND SGRC. THESE CURVES ARE SMOOTHED WITH A 1. 1 FT WINDOW. GAP FILL IS SET TO 5 FT FOR ALL CURVES. File Header Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH GR 47.5 12533.5 ROP 106.5 12579.5 CALN 6175.5 12499.0 RPS 6211.0 12526.0 RPD 6211.0 12526.0 RPM 6211.0 12526.0 NPHI 6211.0 12485.0 • NCNT 6211.0 12485.0 RPX 6211.0 12526.0 FONT 6211.0 12485.0 FET 6211.0 12526.0 DHO2 6215.5 12497.5 DRHO 6215.5 12499.0 DHO4 6215.5 12497.5 PEF 6215.5 12499.0 RHO2 6215.5 12497.5 PEF1 6215.5 12497.5 PEF3 6215.5 12497.5 PEF2 6215.5 12497.5 DHO1 6215.5 12497.5 RHO3 6215.5 12497.5 PEF4 6215.5 12497.5 RHOB 6215.5 12499.0 RHO1 6215.5 12497.5 RHO4 6215.5 12497.5 DHO3 6215.5 12497.5 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH GR 7.5 55.5 116.5 124.5 149.5 157.5 191.0 199.0 217.5 223.5 324.0 332.5 334.5 342.5 348.5 357.0 357.5 367.0 377.0 385.0 386.0 395.5 418.0 425.0 427.0 434.0 451.0 456.0 483.0 489.0 495.5 501.5 502.5 508.0 515.0 522.0 540.0 547.0 550.5 556.5 577.0 583.0 581.5 587.0 584.5 590.0 596.5 604.0 611.5 619.0 625.5 633.5 632.5 638.5 646.5 652.5 648.5 656.0 657.5 664.0 664.5 671.5 697.5 705.0 703.5 710.0 705.0 712.5 712.5 719.0 731.0 736.5 735.5 742.5 740.5 748.0 761.0 772.5 795.0 802.5 813.0 822.0 832.0 840.0 868.5 876.5 877.0 883.5 897.5 901.0 922.0 927.0 936.0 943.0 974.5 984.0 1034.5 1040.5 1040.5 1047.5 1051.5 1059.0 1075.0 1082.5 1079.5 1088.0 1103.5 1112.5 1110.0 1117.5 1144.0 1151.5 1151.5 1161.5 1173.0 1181.5 1191.5 1200.0 1199.0 1207.0 1216.0 1223.0 1222.0 1229.0 1227.0 1234.5 1231.0 1239.5 1234.0 1241.5 1247.5 1256.5 1271.5 1280.5 1307.5 1315.5 1330.5 1338.0 1336.5 1342.5 1459.5 1466.0 1525.0 1530.0 1602.0 1608.0 1617.5 1626.5 1626.5 1637.0 1652.0 1662.5 1673.5 1682.5 1751.0 1756.5 1840.0 1848.0 1876.0 1884.5 1984.0 1991.0 2031.0 2037.0 2140.0 2149.5 2175.5 2184.0 2288.5 2294.5 2292.0 2298.0 2334.0 2340.0 2381.5 2384.0 2395.0 2396.5 2406.5 2412.5 2431.0 2440.0 2443.5 2451.5 2479.0 2484.0 2522.5 2529.0 2527.0 2533.5 2549.5 2555.5 2584.5 2590.5 2597.5 2601.5 2612.0 2620.0 2628.5 2636.5 2637.0 2645.0 2660.0 2668.5 2678.0 2685.5 2688.0 2695.5 2694 .5 2704.0 2729.0 2739.0 2760.5 2771.0 2767.0 2776.5 3119.0 3129.5 3290.0 3299.0 3340.5 3349.5 3459.5 3467.0 3551.5 3558.0 3594 .5 3599.0 3695.0 3705.0 3775.0 3781.0 3790.5 3796.0 3820.0 3829.5 3859.0 3865.5 3961.5 3967.5 4187.0 4195.0 4249.0 4256.0 4308.0 4315.5 4341.5 4348.5 4400.0 4406.5 5065.5 5073.0 5308.0 5316.0 5316.0 5326.0 5335.0 5340.5 5413.5 5421.0 5450.0 5457.5 5664.0 5672.0 5901.0 5907.0 5910.0 5917.0 5940.0 5947.0 5989.5 5994.5 6016.5 6022.5 6034.5 6039.5 6074.5 6082.5 6090.5 6098.0 6136.0 6142.5 6142.0 6150.5 6204.5 6208.0 6208.5 6211.5 6218.5 6220.5 6222.5 6224.0 6231.0 6233.0 6256.0 6258.0 6277.0 6278.5 6294.0 6293.5 6329.0 6329.0 6352.0 6352.0 6386.5 6386.5 6404.0 6405.0 6453.5 6455.5 6477.0 6476.0 6500.0 6500.0 6506.5 6506.5 6515.0 6517.0 6524.0 6525.0 6534.0 6534.0 6540.0 6540.5 6549.0 6548.5 6560.0 6559.0 6570.5 6568.0 6584.5 6585.0 6606.5 6608.5 6608.0 6610.0 6630.0 6631.5 6652.5 6652.5 6670.5 6672.0 6683.5 6685.5 6692.0 6694.5 6717.0 6717.5 6729.0 6731.0 6743.0 6743.0 6763.0 6762.5 6768.5 6767.0 6775.5 6774.5 r 6787.5 6786.5 6803.5 6804 .0 6823.0 6825.0 6827.0 6828.5 6838.5 6839.5 6841.0 6842.5 6849.0 6850.5 6853.0 6855.0 6872.0 6874.5 6905.0 6907.0 6945.5 6948.0 6947.5 6950.0 6984.0 6985.0 7002.0 7003.0 7049.5 7049.5 7056.5 7058.5 7062.5 7065.0 7076.0 7078.5 7080.0 7083.5 7091.0 7094.5 7102.0 7102.5 7122.0 7122.0 7125.0 7125.5 7140.5 7142.5 7148.0 7148.5 7173.5 7173.0 7187.0 7186.5 7202.0 7202.0 7225.5 7224.0 7235.0 7232.5 7239.5 7237.5 7245.5 7243.0 7258.5 7256.5 7268.0 7267.0 7285.0 7283.0 7295.0 7293.0 7307.5 7307.0 7339.5 7339.0 7358.0 7357.0 7380.5 7379.0 7408.5 7407.5 7413.0 7412.5 7425.0 7424.0 7434.0 7434.0 7437.5 7437.5 7449.0 7449.0 7467.0 7467.0 7476.0 7474.5 7498.0 7496.0 7501.0 7500.0 7513.0 7511.5 7522.0 7519.5 7536.0 7534.0 7537.5 7536.0 7542.5 7540.5 7556.5 7554.5 7564.0 7561.5 7569.0 7567.5 7582.5 7581.5 7596.0 7595.0 7607.0 7605.0 7610.0 7608.0 7625.5 7623.0 7635.0 7630.0 7640.0 7638.0 7647.5 7646.0 7656.0 7656.0 7663.0 7662.0 7672.0 7670.5 7674.0 7673.0 7683.0 7683.0 7688.5 7688.0 7695.0 7693.0 7710.0 7708.5 7713.0 7711.0 7723.0 7721.0 7726.0 7725.5 7729.5 7728.5 7733.5 7733.5 7748.0 7748.0 7764.5 7764.5 7773.5 7774.0 7788.5 7790.0 7812.5 7816.0 7819.0 7820.0 7847.5 7850.0 7888.5 7888.0 7902.0 7902.0 7908.5 7909.5 7933.5 7934.5 7955.5 7955.5 7975.0 7975.5 7990.0 7990.0 8020.0 8020.5 8025.5 8024.5 8037.0 8036.5 8044.0 8043.5 8055.5 8055.5 8093.0 8092.0 8106.0 8105.5 8114.5 8112.5 8142.5 8140.0 8241.5 8240.5 8255.5 8256.5 8264.0 8264.5 8273.0 8274.0 8289.5 8289.5 8295.0 8294.5 8311.5 8310.5 8326.0 8325.0 8353.0 8352.5 8394.0 8392.0 8408.0 8406.5 8434.0 8433.0 8471.5 8470.5 8506.0 8504.5 8549.5 8548.5 8584.5 8584.5 8607.0 8606.0 8630.0 8626.0 8660.5 8657.0 8666.5 8663.0 8677.0 8673.5 8716.5 8714.5 8731.5 8730.5 8741.5 8739.0 8754.5 8752.5 8768.0 8766.5 8778.5 8775.5 8794.0 8793.0 8835.5 8836.0 8848.5 8849.0 8890.0 8889.5 8900.0 8899.5 8923.0 8922.0 8932.5 8930.5 8999.5 8998.5 9004 .5 9002.0 9034 .5 9033.5 9058.5 9056.5 9073.0 9071.0 9094.5 9094 .5 9118.0 9117.5 9127.5 9126.0 9139.5 9139.5 9148.0 9148.0 9202.0 9203.0 9220.5 9221.0 9226.0 9226.5 9235.5 9236.5 9300.5 9299.0 9388.5 9387.0 9419.5 9418.5 9450.5 9449.0 9476.0 9474.5 9489.5 9486.0 9518.5 9516.0 9534.5 9533.0 9592.0 9590.5 9651.0 9651.0 9658.5 9656.5 9694.5 9693.5 9728.5 9728.5 9746.0 9748.5 9751.5 9754 .0 9759.5 9761.0 9782.0 9782.5 9796.5 9797.5 9817.0 9816.5 9833.0 9833.0 9841.5 9841.0 9851.5 9850.0 9893.0 9892.0 9925.0 9923.5 10043.0 10043.0 10081.0 10079.0 10088.0 10087.5 10115.5 10115.0 10147.0 10146.0 10192.0 10191.5 10202.5 10203.0 10203.5 10204.0 10208.5 10208.0 10222.5 10221.0 10249.0 10250.0 10298.0 10297.5 10374.5 10374.0 10379.0 10380.0 10445.0 10444.0 10487.5 10489.0 10500.5 10501.5 10506.0 10505.5 10533.5 10534.5 10537.0 10537.0 10578.5 10577.5 10603.5 10602.5 10611.0 10611.5 10618.5 10618.0 10628.5 10628.0 10654.5 10654.0 10679.0 10678.0 10706.0 10704.0 10720.0 10718.5 10745.5 10746.5 10753.5 10753.5 10769.0 10767.5 10779.5 10778.5 10796.5 10794.5 10806.5 10805.5 10809.0 10808.5 10848.0 10848.0 10854.0 10853.5 10866.0 10865.5 10870.0 10869.5 10899.5 10900.0 10919.5 10920.5 10927.5 10930.0 10936.5 10938.5 10957.0 10957.0 10967.0 10967.5 10979.5 10980.0 10994.0 10993.0 10998.0 10997.5 11022.0 11023.5 11032.5 11031.5 11056.5 11056.0 11063.5 11065.0 11074.0 11077.5 11080.5 11083.5 11109.5 11112.0 11199.0 11201.5 11207.0 11210.5 11229.0 11228.5 11241.5 11242.0 11302.0 11304.0 11305.5 11307.0 11310.5 11313.0 11315.0 11317.5 11339.5 11339.5 11363.5 11363.5 11381.5 11385.0 11393.0 11395.5 11397.5 11399.5 11402.5 11404.5 11445.5 11446.5 11459.5 11458.5 11476.0 11477.0 11480.0 11481.0 11504 .5 11507.0 11527.0 11528.0 11528.5 11529.0 11548.5 11549.5 11557.0 11558.5 11560.0 11563.0 11566.5 11568.5 11574.5 11576.0 11579.0 11582.0 11595.0 11597.5 11628.5 11630.5 11653.5 11656.5 11666.5 11670.5 11673.0 11676.5 11686.0 11689.0 11705.5 11710.5 11711.5 11715.0 11725.5 11727.0 11729.5 11731.0 11733.5 11735.5 11745.5 11747.0 11749.5 11752.5 11753.0 11754.5 11775.5 11777.0 46 11808.0 11809.0 11852.0 11854.5 11892.5 11896.0 11906.5 11909.5 11927.5 11930.5 11943.5 11946.5 11955.0 11957.5 11969.5 11973.0 11973.0 11975.5 11984.0 11986.0 11998.5 12001.0 12037.0 12039.0 12043.5 12045.5 12049.0 12051.5 12051.5 12053.5 12055.0 12058.5 12074.5 12077.5 12091.5 12097.0 12102.5 12107.0 12164.0 12165.5 12182.5 12184.5 12209.5 12211.0 12212.0 12212.5 12235.5 12238.5 12255.5 12255.5 12268.5 12268.5 12293.0 12290.0 12330.0 12331.5 12347.5 12348.0 12355.0 12356.5 12358.5 12360.0 12579.5 12581.0 MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MERGE TOP MERGE BASE MWD 1 55.5 540.0 MWD 2 540.5 618.0 MWD 3 618.0 1300.0 MWD 4 1300.5 2350.0 MWD 6 2350.5 6240.0 MWD 7 6240.5 6260.0 MWD 8 6260.0 12581.0 REMARKS: MERGED MAIN PASS. Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MWD IN 4 1 68 4 2 RHO' MWD G/CC 4 1 68 8 3 RHOB MWD G/CC 4 1 68 12 4 RHO3 MWD G/CC 4 1 68 16 5 RHO4 MWD G/CC 4 1 68 20 6 RHO2 MWD G/CC 4 1 68 24 7 DH01 MWD G/CC 4 1 68 28 8 DRHO MWD G/CC 4 1 68 32 9 DH03 MWD G/CC 4 1 68 36 10 DH04 MWD G/CC 4 1 68 40 11 DH02 MWD G/CC 4 1 68 44 12 PEF1 MWD B/E 4 1 68 48 13 PEF MWD B/E 4 1 68 52 14 PEF3 MWD B/E 4 1 68 56 15 PEF4 MWD B/E 4 1 68 60 16 PEF2 MWD B/E 4 1 68 64 17 GR MWD API 4 1 68 68 18 FET MWD HR 4 1 68 72 19 RPX MWD OHMM 4 1 68 76 20 RPS MWD OHMM 4 1 68 80 21 RPM MWD OHMM 4 1 68 84 22 RPD MWD OHMM 4 1 68 88 23 ROP MWD FPH 4 1 68 92 24 FCNT MWD CP30 4 1 68 96 25 NCNT MWD CP30 4 1 68 100 26 NPHI MWD PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 47.5 12579.5 6313.5 25065 47.5 12579.5 CALN MWD IN 8.25 22.69 9.04049 10387 6175.5 12499 RHO1 MWD G/CC 1.274 3.033 2.20324 11733 6215.5 12497.5 RHOB MWD G/CC 0.7712 3.6073 2.21998 12568 6215.5 12499 RHO3 MWD G/CC 1.03 3.035 2.17176 10585 6215.5 12497.5 RHO4 MWD G/CC 1.267 2. 911 2.19156 11187 6215.5 12497.5 RHO2 MWD G/CC 1.263 2.711 2.12555 10576 6215.5 12497.5 DH01 MWD G/CC -1.454 0.325 0.0308603 11733 6215.5 12497.5 DRHO MWD G/CC -1. 9203 0.4362 0.0553421 12568 6215.5 12499 DH03 MWD G/CC -1.41 0.562 0.110073 10585 6215.5 12497.5 DH04 MWD G/CC -1.113 0.35 0.0732228 11187 6215.5 12497.5 DH02 MWD G/CC -0.745 0.392 0.19141 10576 6215.5 12497.5 PEF1 MWD B/E 0.333 10. 609 2.20837 11763 6215.5 12497.5 PEF MWD B/E 0.5214 11.0618 2.26762 12568 6215.5 12499 PEF3 MWD B/E 0.591 10.414 2.2311 10667 6215.5 12497.5 PEF4 MWD B/E 0.533 11.437 2.29044 11217 6215.5 12497.5 PEF2 MWD B/E 0.484 10.208 2.33123 10666 6215.5 12497.5 GR MWD API 15.19 141.51 69.1645 24973 47.5 12533.5 FET MWD HR 0.1 116.31 1.29566 12631 6211 12526 RPX MWD OHMM 1.13 45.79 5.82553 12631 6211 12526 RPS MWD OHMM 0.11 1597.95 6.6023 12631 6211 12526 RPM MWD OHMM 1.14 2000 7.32409 12631 6211 12526 RPD MWD OHMM 1.13 2000 8.12763 12631 6211 12526 ROP MWD FPH 0.08 1702.04 263.727 24916 106.5 12579.5 FCNT MWD CP30 453.06 3536.94 789.01 12549 6211 12485 NCNT MWD CP30 109373 208860 132911 12549 6211 12485 NPHI MWD PU 13.1 99.75 38.7455 12549 6211 12485 First Reading For Entire File 47.5 Last Reading For Entire File 12579.5 File Trailer Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.002 Physical EOF File Header Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 EDITED MERGED MAD Depth shifted and clipped curves; all MAD runs merged using earliest passes. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH CALN 10801.5 12102.0 FCNT 10966.5 12089.0 NCNT 10966.5 12089.0 NPHI 10966.5 12089.0 FET 10983.0 12127.5 RPD 10989.5 12127.5 RPM 10989.5 12127.5 RPS 10989.5 12127.5 RPX 10989.5 12127.5 GR 10999.0 12136.0 RHOB 10999.5 12102.0 PEF4 10999.5 12101.5 DHO3 10999.5 12101.5 RHO4 10999.5 12101.5 DHO4 10999.5 12101.5 DHO1 10999.5 12101.5 PEF3 10999.5 12101.5 DRHO 10999.5 12102.0 RHO3 10999.5 12101.5 PEF 10999.5 12102.0 PEF1 10999.5 12101.5 RHO2 10999.5 12101.5 RHO1 10999.5 12101.5 PEF2 10999.5 12101.5 DHO2 10999.5 12101.5 RAT 11061.5 12182.0 MERGED DATA SOURCE PBU TOOL CODE MAD RUN NO. MAD PASS NO. MERGE TOP MERGE BASE MWD 8 1 10800.0 12581.0 REMARKS: MERGED MAD PASS. Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MAD IN 4 1 68 4 2 RHO1 MAD G/CC 4 1 68 8 3 RHOB MAD G/CC 4 1 68 12 4 RHOS MAD G/CC 4 1 68 16 5 RHO4 MAD G/CC 4 1 68 20 6 RHO2 MAD G/CC 4 1 68 24 7 DHO1 MAD G/CC 4 1 68 28 8 DRHO MAD G/CC 4 1 68 32 9 DHO3 MAD G/CC 4 1 68 36 10 DHO4 MAD G/CC 4 1 68 40 11 DHO2 MAD G/CC 4 1 68 44 12 PEF1 MAD B/E 4 1 68 48 13 PEF MAD B/E 4 1 68 52 14 PEF3 MAD B/E 4 1 68 56 15 PEF4 MAD B/E 4 1 68 60 16 PEF2 MAD B/E 4 1 68 64 17 GR MAD API 4 1 68 68 18 FET MAD HR 4 1 68 72 19 RPX MAD OHMM 4 1 68 76 20 RPS MAD OHMM 4 1 68 80 21 RPM MAD OHMM 4 1 68 84 22 RPD MAD OHMM 4 1 68 88 23 RAT MAD FPH 4 1 68 92 24 FCNT MAD CP30 4 1 68 96 25 NCNT MAD CP30 4 1 68 100 26 NPHI MAD PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10801.5 12182 11491.8 2762 10801.5 12182 CALN MAD IN 8.25 11.24 8.98601 2546 10801.5 12102 RHO1 MAD G/CC 1.892 2.883 2.26834 2205 10999.5 12101.5 RHOB MAD G/CC 1.9315 3.0148 2.28493 2206 10999.5 12102 RHO3 MAD G/CC 1.929 2. 696 2.23327 2205 10999.5 12101.5 RHO4 MAD G/CC 1.859 2. 684 2.23238 2205 10999.5 12101.5 RHO2 MAD G/CC 1.69 2.8 2.17118 2205 10999.5 12101.5 DHO1 MAD G/CC -0.042 0.341 0.0300444 2205 10999.5 12101.5 DRHO MAD G/CC -0.0461 0.2818 0.0492099 2206 10999.5 12102 DHO3 MAD G/CC -0.027 0.321 0.099966 2205 10999.5 12101.5 DHO4 MAD G/CC -0.016 0.335 0.0806875 2205 10999.5 12101.5 DHO2 MAD G/CC -0.021 0.415 0.201256 2205 10999.5 12101.5 PEF1 MAD B/E 1.093 8.397 2.30643 2205 10999.5 12101.5 PEF MAD B/E 1.1181 7.3138 2.34326 2206 10999.5 12102 PEF3 MAD B/E 0.711 5.892 2.14059 2205 10999.5 12101.5 PEF4 MAD B/E 1.048 6.724 2.38701 2205 10999.5 12101.5 PEF2 MAD B/E 0.877 6.218 2.22055 2205 10999.5 12101.5 GR MAD API 21.24 197.58 77.6339 2275 10999 12136 FET MAD HR 5.28 50.79 37.0696 2278 10983 12127.5 RPX MAD OHMM 1.31 19.91 3.2404 2277 10989.5 12127.5 RPS MAD OHMM 1.21 21.32 3.23217 2277 10989.5 12127.5 RPM MAD OHMM 1.12 26.4 3.31833 2277 10989.5 12127.5 RPD MAD OHMM 1.1 19.78 3.29589 2277 10989.5 12127.5 RAT MAD FPH 11. 94 907.87 277.028 2242 11061.5 12182 FCNT MAD CP30 704.72 3028.91 986. 64 2246 10966.5 12089 NCNT MAD CP30 124219 190860 144899 2246 10966.5 12089 NPHI MAD PU 12.83 43.59 32.8166 2246 10966.5 12089 First Reading For Entire File 10801.5 Last Reading For Entire File 12182 File Trailer Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.003 Physical EOF File Header Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.002 Comment Record FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 55.5 481.5 ROPA 114.5 540.0 $ LOG HEADER DATA DATE LOGGED: 27-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 540.0 TOP LOG INTERVAL (FT) : 114.0 BOTTOM LOG INTERVAL (FT) : 540.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: .0 MAXIMUM ANGLE: 1.5 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 8. 60 MUD VISCOSITY (S) : .0 MUD PH: 10.8 MUD CHLORIDES (PPM) : 800 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.960 70.0 MUD AT MAX CIRCULATING TERMPERATURE: 2.250 60.2 • MUD FILTRATE AT MT: 1.940 70.0 MUD CAKE AT MT: 1.990 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD010 API 4 1 68 4 2 ROP MWD010 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 55.5 540 297.75 970 55.5 540 GR MWD010 API 15. 19 77. 61 29.5131 853 55.5 481.5 ROP MWD010 FPH 1 345. 99 139.865 852 114 .5 540 First Reading For Entire File 55.5 Last Reading For Entire File 540 File Trailer Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.004 Physical EOF File Header Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.003 Comment Record FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 2 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH ROPA 540.5 618.0 $ LOG HEADER DATA DATE LOGGED: 27-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 618.0 TOP LOG INTERVAL (FT) : 540.0 BOTTOM LOG INTERVAL (FT) : 618.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 1. 6 MAXIMUM ANGLE: 2. 9 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 8.80 MUD VISCOSITY (S) : .0 MUD PH: 10.7 MUD CHLORIDES (PPM) : 700 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.400 68.0 MUD AT MAX CIRCULATING TERMPERATURE: .000 .0 MUD FILTRATE AT MT: 1.300 68.0 MUD CAKE AT MT: 1.000 68.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD020 FPH 4 1 68 4 2 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 540.5 618 579.25 156 540.5 618 ROP MWD020 FPH 0.08 84.84 53.2483 156 540.5 618 First Reading For Entire File 540.5 Last Reading For Entire File 618 File Trailer Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.005 Physical EOF File Header Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.004 Comment Record FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 482.0 1300.0 ROPA 618.5 1300.0 LOG HEADER DATA DATE LOGGED: 28-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 1300.0 TOP LOG INTERVAL (FT) : 618.0 BOTTOM LOG INTERVAL (FT) : 1300.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 3.3 MAXIMUM ANGLE: 33.7 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 8. 90 MUD VISCOSITY (S) : .0 MUD PH: 10. 9 MUD CHLORIDES (PPM) : 700 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.400 68.0 MUD AT MAX CIRCULATING TERMPERATURE: 1.490 63.8 MUD FILTRATE AT MT: 1.300 68.0 MUD CAKE AT MT: 1.000 68.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD030 API 4 1 68 4 2 ROP MWD030 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 482 1300 891 1637 482 1300 GR MWD030 API 17.81 87.44 44 .2442 1637 482 1300 ROP MWD030 FPH 1.53 213.59 84 .3941 1364 618.5 1300 First Reading For Entire File 482 Last Reading For Entire File 1300 File Trailer Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.006 Physical EOF File Header Service name STSLIB.006 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.005 Comment Record FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 1300.5 2293.5 ROPA 1315.5 2350.0 LOG HEADER DATA DATE LOGGED: 29-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 2350.0 TOP LOG INTERVAL (FT) : 1300.0 BOTTOM LOG INTERVAL (FT) : 2350.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 26.7 MAXIMUM ANGLE: 52.9 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 9.00 MUD VISCOSITY (S) : .0 MUD PH: 10.7 MUD CHLORIDES (PPM) : 725 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.850 .7 MUD AT MAX CIRCULATING TERMPERATURE: .190 63.8 MUD FILTRATE AT MT: 1.920 65.0 MUD CAKE AT MT: 2.200 65.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD040 API 4 1 68 4 2 ROP MWD040 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 1300.5 2350 1825.25 2100 1300.5 2350 GR MWD040 API 25.94 118.81 66.4055 1987 1300.5 2293.5 ROP MWD040 FPH 0.36 477.61 137.248 2070 1315.5 2350 First Reading For Entire File 1300.5 Last Reading For Entire File 2350 File Trailer Service name STSLIB.006 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.007 Physical EOF File Header Service name STSLIB.007 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.006 Comment Record FILE HEADER FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 6 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 2350.5 6181.5 ROPA 2350.5 6240.0 LOG HEADER DATA DATE LOGGED: 11-DEC-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 6240.0 TOP LOG INTERVAL (FT) : 2350.0 BOTTOM LOG INTERVAL (FT) : 6240.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 54.6 MAXIMUM ANGLE: 74.6 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 163685 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 12.250 DRILLER'S CASING DEPTH (FT) : 2342.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 9.00 MUD VISCOSITY (S) : 56.0 MUD PH: 10.1 MUD CHLORIDES (PPM) : 6800 FLUID LOSS (C3) : 5.6 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.750 65.0 MUD AT MAX CIRCULATING TERMPERATURE: 1.320 88.5 MUD FILTRATE AT MT: 1.460 65.0 MUD CAKE AT MT: 1. 600 65.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type. . .- 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD060 API 4 1 68 4 2 ROP MWD060 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 2350.5 6240 4295.25 7780 2350.5 6240 GR MWD060 API 15.72 125. 95 74.4777 7663 2350.5 6181.5 ROP MWD060 FPH 2. 15 1243.79 282.229 7780 2350.5 6240 First Reading For Entire File 2350.5 Last Reading For Entire File 6240 File Trailer Service name STSLIB.007 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.008 Physical EOF File Header Service name STSLIB.008 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.007 Comment Record FILE HEADER FILE NUMBER: 8 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 7 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH ROPA 6240.5 6260.0 LOG HEADER DATA DATE LOGGED: 15-DEC-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 6260.0 TOP LOG INTERVAL (FT) : 6240.0 BOTTOM LOG INTERVAL (FT) : 6260.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: .0 MAXIMUM ANGLE: .0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 8.750 DRILLER'S CASING DEPTH (FT) : 6228.0 BOREHOLE CONDITIONS MUD TYPE: Fresh Water Gel MUD DENSITY (LB/G) : .00 MUD VISCOSITY (S) : .0 MUD PH: .0 MUD CHLORIDES (PPM) : 0 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 .0 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD070 FPH 4 1 68 4 2 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 6240.5 6260 6250.25 40 6240.5 6260 ROP MWD070 FPH 1.94 90. 93 36.281 40 6240.5 6260 First Reading For Entire File 6240.5 Last Reading For Entire File 6260 File Trailer Service name STSLIB.008 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.009 Physical EOF File Header Service name STSLIB.009 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.008 Comment Record FILE HEADER FILE NUMBER: 9 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 8 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH AHSI 6181.5 12500.5 DGRC 6182.0 12535.0 R39P 6214.0 12527.5 R15P 6214.0 12527.5 TNFA 6214 .0 12486.5 RO9P 6214.0 12527.5 R27P 6214.0 12527.5 TNNA 6214.0 12486.5 EWXT 6214.0 12527.5 TNPS 6214.0 12486.5 CDBQ 6218.0 12499.0 ACDL 6218.0 12500.5 CDLQ 6218.0 12499.0 PETQ 6218.0 12499.0 DCLQ 6218.0 12499.0 DCBQ 6218.0 12499.0 ADCL 6218.0 12500.5 PEBQ 6218.0 12499.0 CDRQ 6218.0 12499.0 APEL 6218.0 12500.5 CDTQ 6218.0 12499.0 PELQ 6218.0 12499.0 DCTQ 6218.0 12499.0 DCRQ 6218.0 12499.0 PERQ 6218.0 12499.0 ROPA 6260.5 12581.0 $ LOG HEADER DATA DATE LOGGED: 20-DEC-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 12581.0 TOP LOG INTERVAL (FT) : 6260.0 BOTTOM LOG INTERVAL (FT) : 12581.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 51.3 MAXIMUM ANGLE: 74.4 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 11321777 EWR4 ELECTROMAG. RESIS. 4 228269 CTN COMP THERMAL NEUTRON 181187 ALD Azimuthal Litho-Dens 133319 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 8.750 DRILLER'S CASING DEPTH (FT) : 6228.0 BOREHOLE CONDITIONS MUD TYPE: Fresh Water Gel MUD DENSITY (LB/G) : 9. 10 MUD VISCOSITY (S) : 53.0 MUD PH: 9. 9 MUD CHLORIDES (PPM) : 2600 FLUID LOSS (C3) : 5.1 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.550 65.0 MUD AT MAX CIRCULATING TERMPERATURE: . 900 116.8 MUD FILTRATE AT MT: 1.450 65.0 MUD CAKE AT MT: 1.500 65.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MWD080 IN 4 1 68 4 2 RHO1 MWD080 G/CC 4 1 68 8 3 RHOB MWD080 G/CC 4 1 68 12 4 RHOS MWD080 G/CC 4 1 68 16 5 RHO4 MWD080 G/CC 4 1 68 20 6 RHO2 MWD080 G/CC 4 1 68 24 7 DHO1 MWD080 G/CC 4 1 68 28 8 DRHO MWD080 G/CC 4 1 68 32 9 DHO3 MWDO80 G/CC 4 1 68 36 10 DHO4 MWD080 G/CC 4 1 68 40 11 DHO2 MWD080 G/CC 4 1 68 44 12 PEF1 MWD080 B/E 4 1 68 48 13 PEF MWD080 B/E 4 1 68 52 14 PEF3 MWD080 B/E 4 1 68 56 15 PEF4 MWD080 B/E 4 1 68 60 16 PEF2 MWD080 B/E 4 1 68 64 17 GR MWD080 API 4 1 68 68 18 FET MWD080 HR 4 1 68 72 19 RPX MWD080 OHMM 4 1 68 76 20 RPS MWD080 OHMM 4 1 68 80 21 RPM MWD080 OHMM 4 1 68 84 22 RPD MWD080 OHMM 4 1 68 88 23 ROP MWD080 FPH 4 1 68 92 24 FCNT MWD080 CP30 4 1 68 96 25 NCNT MWD080 CP30 4 1 68 100 26 NPHI MWD080 PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 6181.5 12581 9381.25 12800 6181.5 12581 CALN MWD080 IN 8.25 22. 69 9.04039 10348 6181.5 12500.5 RHO1 MWD080 G/CC 1.274 3.033 2.2036 11711 6218 12499 RHOB MWD080 G/CC 0.7712 3. 6073 2.22017 12566 6218 12500.5 RHOS MWD080 G/CC 1.03 3.035 2.17203 10553 6218 12499 RHO4 MWD080 G/CC 1.267 2. 911 2.19198 11175 6218 12499 RHO2 MWD080 G/CC 1.263 2.711 2.12603 10545 6218 12499 DHO1 MWD080 G/CC -1.454 0.325 0.0310248 11711 6218 12499 DRHO MWD080 G/CC -1. 9203 0.4362 0.0555705 12566 6218 12500.5 DHO3 MWD080 G/CC -1.41 0.562 0.110145 10553 6218 12499 DHO4 MWD080 G/CC -1.113 0.35 0.0732972 11175 6218 12499 DHO2 MWD080 G/CC -0.745 0.392 0.191245 10545 6218 12499 PEF1 MWD080 B/E 0.333 10. 609 2.20723 11742 6218 12499 PEF MWD080 B/E 0.5214 11.0618 2.26738 12566 6218 12500.5 PEF3 MWD080 B/E 0.591 10.414 2.23085 10632 6218 12499 PEF4 MWD080 B/E 0.533 11.437 2.29022 11206 6218 12499 PEF2 MWD080 B/E 0.484 10.208 2.33072 10637 6218 12499 GR MWD080 API 17.44 141.51 72.5231 12707 6182 12535 FET MWD080 HR 0.1 116.31 1.27408 12628 6214 12527.5 RPX MWD080 OHMM 1.13 45.79 5.81473 12628 6214 12527.5 RPS MWD080 OHMM 0.11 1597. 95 6.4597 12628 6214 12527.5 RPM MWD080 OHMM 1.14 2000 7.15258 12628 6214 12527.5 RPD MWD080 OHMM 1.13 2000 7.91248 12628 6214 12527.5 ROP MWD080 FPH 0.18 1702.04 303.63 12642 6260.5 12581 FCNT MWD080 CP30 453.06 3536.94 789.068 12546 6214 12486.5 NCNT MWD080 CP30 109373 208860 132902 12546 6214 12486.5 NPHI MWD080 PU 13.1 99.75 38.7488 12546 6214 12486.5 First Reading For Entire File 6181.5 Last Reading For Entire File 12581 File Trailer Service name STSLIB.009 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.010 Physical EOF File Header Service name STSLIB.010 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.009 Comment Record FILE HEADER FILE NUMBER: 10 RAW MAD Curves and log header data for each pass of each run in separate files. DEPTH INCREMENT: .5000 MAD RUN NUMBER: 8 MAD PASS NUMBER: 1 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH AHSI 10800.0 12106.5 TNPS 10967.0 12094.0 TNNA 10967.0 12094.0 TNFA 10967.0 12094.0 EWXT 10983.0 12131.0 R15P 10989.0 12131.0 RO9P 10989.0 12131.0 R27P 10989.0 12131.0 R39P 10989.0 12131.0 DGRC 10998.5 12139.0 ADCL 10999.0 12106.5 DCLQ 10999.0 12106.0 PELQ 10999.0 12106.0 PETQ 10999.0 12106.0 PERQ 10999.0 12106.0 APEL 10999.0 12106.5 CDBQ 10999.0 12106.0 PEBQ 10999.0 12106.0 CDLQ 10999.0 12106.0 DCTQ 10999.0 12106.0 CDRQ 10999.0 12106.0 CDTQ 10999.0 12106.0 DCBQ 10999.0 12106.0 ACDL 10999.0 12106.5 DCRQ 10999.0 12106.0 RSPD 11062.5 12184.0 LOG HEADER DATA DATE LOGGED: 20-DEC-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 12186.0 TOP LOG INTERVAL (FT) : 10800.0 BOTTOM LOG INTERVAL (FT) : 12186.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 51.3 MAXIMUM ANGLE: 74 .4 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 11321777 EWR4 ELECTROMAG. RESIS. 4 228269 CTN COMP THERMAL NEUTRON 181187 ALD Azimuthal Litho-Dens 133319 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 8.750 DRILLER'S CASING DEPTH (FT) : 6228.0 BOREHOLE CONDITIONS MUD TYPE: Fresh Water Gel MUD DENSITY (LB/G) : 9.10 MUD VISCOSITY (S) : 53.0 MUD PH: 9. 9 MUD CHLORIDES (PPM) : 2600 FLUID LOSS (C3) : 5.1 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.550 65.0 MUD AT MAX CIRCULATING TERMPERATURE: .900 116.8 MUD FILTRATE AT MT: 1.450 65.0 MUD CAKE AT MT: 1.500 65.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MAD081 IN 4 1 68 4 2 RHO1 MAD081 G/CC 4 1 68 8 3 RHOB MAD081 G/CC 4 1 68 12 4 RHOS MAD081 G/CC 4 1 68 16 5 RHO4 MAD081 G/CC 4 1 68 20 6 RHO2 MAD081 G/CC 4 1 68 24 7 DHO1 MAD081 G/CC 4 1 68 28 8 DRHO MAD081 G/CC 4 1 68 32 9 DHO3 MAD081 G/CC 4 1 68 36 10 DHO4 MAD081 G/CC 4 1 68 40 11 DHO2 MAD081 G/CC 4 1 68 44 12 PEF1 MAD081 B/E 4 1 68 48 13 PEF MAD081 B/E 4 1 68 52 14 PEF3 MAD081 B/E 4 1 68 56 15 PEF4 MAD081 B/E 4 1 68 60 16 PEF2 MAD081 B/E 4 1 68 64 17 FET MAD081 HR 4 1 68 68 18 RPX MAD081 OHMM 4 1 68 72 19 RPS MAD081 OHMM 4 1 68 76 20 RPM MAD081 OHMM 4 1 68 80 21 RPD MAD081 OHMM 4 1 68 84 22 RAT MAD081 FPH 4 1 68 88 23 FCNT MAD081 CP30 4 1 68 92 24 NCNT MAD081 CP30 4 1 68 96 25 NPHI MAD081 PU 4 1 68 100 26 GR MAD081 API 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10800 12184 11492 2769 10800 12184 CALN MAD081 IN 8.25 11.24 8.98498 2557 10800 12106.5 RHO1 MAD081 G/CC 1.892 2.883 2.2687 2215 10999 12106 RHOB MAD081 G/CC 1. 9315 3.0148 2.2853 2216 10999 12106.5 RHO3 MAD081 G/CC 1.929 2.696 2.23335 2215 10999 12106 RHO4 MAD081 G/CC 1.859 2.684 2.23309 2215 10999 12106 RHO2 MAD081 G/CC 1.69 2.8 2.17173 2215 10999 12106 DHO1 MAD081 G/CC -0.042 0.341 0.0302628 2215 10999 12106 DRHO MAD081 G/CC -0.0461 0.2818 0.0492403 2216 10999 12106.5 DHO3 MAD081 G/CC -0.027 0.321 0.100109 2215 10999 12106 DHO4 MAD081 G/CC -0.016 0.335 0.0805603 2215 10999 12106 DHO2 MAD081 G/CC -0.021 0.415 0.201134 2215 10999 12106 PEF1 MAD081 B/E 1.093 8.397 2.31035 2215 10999 12106 PEF MAD081 B/E 1.1181 7.3138 2.34648 2216 10999 12106.5 PEF3 MAD081 B/E 0.711 5.892 2.14479 2215 10999 12106 PEF4 MAD081 B/E 1.048 6.724 2.39107 2215 10999 12106 PEF2 MAD081 B/E 0.877 6.218 2.22328 2215 10999 12106 FET MAD081 HR 5.28 50.79 37.0665 2286 10983 12131 RPX MAD081 OHMM 1.31 19. 91 3.24605 2285 10989 12131 RPS MAD081 OHMM 1.21 21.32 3.23898 2285 10989 12131 RPM MAD081 OHMM 1.12 26.4 3.32557 2285 10989 12131 RPD MAD081 OHMM 1.1 19.78 3.30428 2285 10989 12131 RAT MAD081 FPH 11. 94 907.87 276.98 2244 11062.5 12184 FCNT MAD081 CP30 704 .72 3028. 91 986.924 2255 10967 12094 NCNT MAD081 CP30 124219 190860 144907 2255 10967 12094 NPHI MAD081 PU 12.83 43.59 32.826 2255 10967 12094 GR MAD081 API 21.24 197.58 77.6522 2282 10998.5 12139 First Reading For Entire File 10800 Last Reading For Entire File 12184 File Trailer Service name STSLIB.010 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.011 Physical EOF Tape Trailer Service name LISTPE Date 11/02/21 Origin STS Tape Name UNKNOWN Continuation Number 01 Next Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name LISTPE Date 11/02/21 Origin STS Reel Name UNKNOWN Continuation Number 01 Next Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Mon Feb 21 09:01:13 2011 Reel Header Service name LISTPE Date 11/02/21 Origin STS Reel Name UNKNOWN Continuation Number 01 Previous Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Tape Header Service name LISTPE Date 11/02/21 Origin STS Tape Name UNKNOWN Continuation Number 01 Previous Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS WELL NAME: W-220i PBl API NUMBER: 500292343270 OPERATOR: BP Exploration Alaska, Inc. LOGGING COMPANY: Sperry Drilling TAPE CREATION DATE: 21-FEB-11 JOB DATA MWD RUN 1 MWD RUN 3 JOB NUMBER: -MW-0007521066 -MW-0007521066 LOGGING ENGINEER: JACK KLEINHA JACK KLEINHA OPERATOR WITNESS: JOEY LEBLANC JOEY LEBLANC SURFACE LOCATION SECTION: 21 TOWNSHIP: 11N RANGE: 12E FNL: FSL: 4933 FEL: 1175 FWL: ELEVATION (FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: 87.30 GROUND LEVEL: 53.40 WELL CASING RECORD OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 16.000 20.000 114.0 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH (TVD) . 3. MWD RUNS 1,3 COMPRISED DIRECTIONAL WITH DUAL GAMMA RAY (DGR) UTIL- IZING GEIGER-MUELLER TUBE DETECTORS, DRILLSTRING DYNAMICS SENSOR (DDSr) , AND AT-BIT INCLINATION (ABI) . NO MWD TOOLS WERE INCLUDED IN RUN 2, BUT ROPA DATA WERE ACQUIRED AND ARE PRESENTED. 4 . MERGED DIGITAL AND LOG OPEN-HOLE DATA FOR W-220i WERE SHIFTED TO A SCHLUMBERGER CASED-HOLE GAMMA RAY LOG RUN IN W-220i ON 27 DECEMBER 2010. SHIFTING INSTRUCTIONS WERE PROVIDED BY D. DORTCH (SAIC/BP) VIA AN E-MAIL DATED 2 FEBRUARY 2011, QUOTING AUTHORIZATION FROM WALTER TIFENTAL (BP) . MERGED DIGITAL AND LOG DATA FOR W-220i PB1 WERE SHIFTED TO THE SHIFTED DGRC DATA FROM W-220i. ANNOTATIONS AND LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTHS. 5. MWD RUNS 1-3 REPRESENT WELL W-220i PB1 WITH API#: 50-029-23432-70. THIS WELL REACHED A TOTAL DEPTH (TD) OF 1412'MD/1369'TVD. ROPA = AVERAGE RATE OF PENETRATION WHILE DRILLING. DGRC = DGR GAMMA RAY COMBINED. ALL DATA CURVES ARE SMOOTHED TO A STEP OF 0.5 FT, WITH A WINDOW OF 0. 6 FT, EXCEPT FOR SROP AND SGRC. THESE CURVES ARE SMOOTHED WITH A 1.1 FT WINDOW. GAP FILL IS SET TO 5 FT FOR ALL CURVES. File Header Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH GR 47.5 1352.0 ROP 106.5 1404.0 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH GR 7.5 55.5 116.5 124.5 149.5 157.5 191.0 199.0 217.5 223.5 324.0 332.5 334.5 342.5 348.5 357.0 357.5 367.0 377.0 385.0 386.0 395.5 418.0 425.0 427.0 434 .0 451.0 456.0 483.0 489.0 495.5 501.5 502.5 508.0 515.0 522.0 540.0 547.0 550.5 556.5 577.0 583.0 581.5 587.0 584.5 590.0 596.5 604.0 611.5 619.0 625.5 633.5 632.5 638.5 646.5 652.5 648.5 656.0 657.5 664.0 664.5 671.5 697.5 705.0 703.5 710.0 705.0 712.5 712.5 719.0 731.0 736.5 735.5 742.5 740.5 748.0 761.0 772.5 795.0 802.5 813.0 822.0 832.0 840.0 868.5 876.5 877.0 883.5 897.5 901.0 922.0 927.0 936.0 943.0 974 .5 984.0 1034 .5 1040.5 1040.5 1047.5 1051.5 1059.0 1075.0 1082.5 1079.5 1088.0 1103.5 1112.5 1110.0 1117.5 1144 .0 1151.5 1151.5 1161.5 1173.0 1181.5 1191.5 1200.0 1199.0 1207.0 1216.0 1223.0 1222.0 1229.0 1227.0 1234.5 1231.0 1239.5 1234.0 1241.5 1247.5 1256.5 1271.5 1280.5 1307.5 1315.5 1404.0 1412.0 $ MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MERGE TOP MERGE BASE MWD 1 55.5 540.0 MWD 3 618.0 1412.0 $ REMARKS: MERGED MAIN PASS. $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD API 4 1 68 4 2 ROP MWD FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 47.5 1404 725.75 2714 47.5 1404 GR MWD API 15.19 87.72 40.0841 2610 47.5 1352 ROP MWD FPH 0.08 345. 99 100.448 2596 106.5 1404 First Reading For Entire File 47.5 Last Reading For Entire File 1404 File Trailer Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.002 Physical EOF File Header Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 55.5 481.5 ROPA 114.5 540.0 $ LOG HEADER DATA DATE LOGGED: 26-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 540.0 TOP LOG INTERVAL (FT) : 114.0 BOTTOM LOG INTERVAL (FT) : 540.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: .0 MAXIMUM ANGLE: 1.5 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 8. 60 MUD VISCOSITY (S) : .0 MUD PH: 10.8 MUD CHLORIDES (PPM) : 800 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1. 960 70.0 MUD AT MAX CIRCULATING TERMPERATURE: 2.250 60.2 MUD FILTRATE AT MT: 1. 940 70.0 MUD CAKE AT MT: 1. 990 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD010 API 4 1 68 4 2 ROP MWDO10 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 55.5 540 297.75 970 55.5 540 GR MWDO10 API 15.19 77.61 29.5131 853 55.5 481.5 ROP MWD010 FPH 1 345.99 139.865 852 114 .5 540 First Reading For Entire File 55.5 Last Reading For Entire File 540 File Trailer Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.003 Physical EOF File Header Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.002 Comment Record FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 482.0 1360.0 ROPA 618.5 1412.0 $ LOG HEADER DATA DATE LOGGED: 28-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 1412.0 TOP LOG INTERVAL (FT) : 540.0 BOTTOM LOG INTERVAL (FT) : 1412.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 3.3 MAXIMUM ANGLE: 33.7 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 8. 90 MUD VISCOSITY (S) : .0 MUD PH: 10. 9 MUD CHLORIDES (PPM) : 700 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.400 68.0 MUD AT MAX CIRCULATING TERMPERATURE: .000 63.8 MUD FILTRATE AT MT: 1.300 68.0 MUD CAKE AT MT: 1.000 68.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD030 API 4 1 68 4 2 ROP MWD030 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 482 1412 947 1861 482 1412 GR MWD030 API 17.81 87.72 45.3211 1757 482 1360 ROP MWD030 FPH 1.53 213.59 83.6836 1588 618.5 1412 First Reading For Entire File 482 Last Reading For Entire File 1412 File Trailer Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.004 Physical EOF Tape Trailer Service name LISTPE Date 11/02/21 Origin STS Tape Name UNKNOWN Continuation Number 01 Next Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name LISTPE Date 11/02/21 Origin STS Reel Name UNKNOWN Continuation Number 01 Next Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Mon Feb 21 09:18:16 2011 Reel Header Service name LISTPE Date 11/02/21 Origin STS Reel Name UNKNOWN Continuation Number 01 Previous Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Tape Header Service name LISTPE Date 11/02/21 Origin STS Tape Name UNKNOWN Continuation Number 01 Previous Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS WELL NAME: W-220iPB2 API NUMBER: 500292343271 OPERATOR: BP Exploration Alaska, Inc. LOGGING COMPANY: Sperry Drilling TAPE CREATION DATE: 21-FEB-11 JOB DATA MWD RUN 1 MWD RUN 3 MWD RUN 4 JOB NUMBER: AKMW0007521066 AKMW0007521066 AKMW0007521066 LOGGING ENGINEER: JACK KLEINHA JACK KLEINHA JACK KLEINHA OPERATOR WITNESS: JOEY LEBLANC JOEY LEBLANC JOEY LEBLANC MWD RUN 5 JOB NUMBER: AKMW0007521066 LOGGING ENGINEER: JACK KLEINHA OPERATOR WITNESS: JOEY LEBLANC SURFACE LOCATION SECTION: 21 TOWNSHIP: 11N RANGE: 12E FNL: FSL: 4933 FEL: 1175 FWL: ELEVATION (FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: 87.30 GROUND LEVEL: 53.40 WELL CASING RECORD OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 16.000 20.000 114.0 2ND STRING 12.250 13.375 2342.0 3RD STRING PRODUCTION STRING REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH (TVD) . 3. THIS OPEN-HOLE SIDETRACK EXITED W-220i PB1 AT 1300'MD/1273'TVD, WITHIN THE MWD RUN 3 INTERVAL. 4 . MWD RUNS 1,3-5 COMPRISED DIRECTIONAL WITH DUAL GAMMA RAY (DGR) UTIL- IZING GEIGER-MUELLER TUBE DETECTORS, DRILLSTRING DYNAMICS SENSOR (DDSr) , AND AT-BIT INCLINATION (ABI) . NO MWD TOOLS WERE INCLUDED IN RUN 2, BUT ROPA DATA WERE ACQUIRED AND ARE PRESENTED. 5. MERGED DIGITAL AND LOG OPEN-HOLE DATA FOR W-220i WERE SHIFTED TO A SCHLUMBERGER CASED-HOLE GAMMA RAY LOG RUN IN W-220i ON 27 DECEMBER 2010. SHIFTING INSTRUCTIONS WERE PROVIDED BY D. DORTCH (SAIC/BP) VIA AN E-MAIL DATED 2 FEBRUARY 2011, QUOTING AUTHORIZATION FROM WALTER TIFENTAL (BP) . MERGED DIGITAL AND LOG DATA FOR W-220i PB2 WERE SHIFTED TO THE SHIFTED DGRC DATA FROM W-220i. ANNOTATIONS AND LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTHS. 6. MWD RUNS 1-5 REPRESENT WELL W-220i PB2 WITH API#: 50-029-23432-71. THIS WELL REACHED A TOTAL DEPTH (TD) OF 6365'MD/3354 'TVD. ROPA = AVERAGE RATE OF PENETRATION WHILE DRILLING. DGRC = DGR GAMMA RAY COMBINED. ALL DATA CURVES ARE SMOOTHED TO A STEP OF 0.5 FT, WITH A WINDOW OF 0. 6 FT, EXCEPT FOR SROP AND SGRC. THESE CURVES ARE SMOOTHED WITH A 1.1 FT WINDOW. GAP FILL IS SET TO 5 FT FOR ALL CURVES. File Header Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH GR 47.5 6300.5 ROP 106.5 6359.0 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH GR 7.5 55.5 116.5 124.5 149.5 157.5 191.0 199.0 217.5 223.5 324.0 332.5 334.5 342.5 348.5 357.0 357.5 367.0 377.0 385.0 386.0 395.5 418.0 425.0 427.0 434.0 451.0 456.0 483.0 489.0 495.5 501.5 502.5 508.0 515.0 522.0 540.0 547.0 550.5 556.5 577.0 583.0 581.5 587.0 584.5 590.0 596.5 604.0 611.5 619.0 625.5 633.5 632.5 638.5 646.5 652.5 648.5 656.0 657.5 664.0 664.5 671.5 697.5 705.0 703.5 710.0 705.0 712.5 712.5 719.0 731.0 736.5 735.5 742.5 740.5 748.0 761.0 772.5 795.0 802.5 813.0 822.0 832.0 840.0 868.5 876.5 877.0 883.5 897.5 901.0 922.0 927.0 936.0 943.0 974.5 984.0 1034.5 1040.5 1040.5 1047.5 1051.5 1059.0 1075.0 1082.5 1079.5 1088.0 1103.5 1112.5 1110.0 1117.5 1144 .0 1151.5 1151.5 1161.5 1173.0 1181.5 1191.5 1200.0 1199.0 1207.0 1216.0 1223.0 1222.0 1229.0 1227.0 1234.5 1231.0 1239.5 1234.0 1241.5 1247.5 1256.5 1271.5 1280.5 1307.5 1315.5 1330.5 1338.0 1336.5 1342.5 1459.5 1466.0 1525.0 1530.0 1602.0 1608.0 1617.5 1626.5 1626.5 1637.0 1652.0 1662.5 1673.5 1682.5 1751.0 1756.5 1840.0 1848.0 1876.0 1884.5 1984.0 1991.0 2031.0 2037.0 2140.0 2149.5 2175.5 2184.0 2288.5 2294.5 2292.0 2298.0 2334.0 2340.0 2336.0 2342.0 2339.0 2344.5 2343.5 2349.0 2345.0 2350.5 6359.0 6365.0 MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MERGE TOP MERGE BASE MWD 1 55.5 540.0 MWD 3 618.0 1300.0 MWD 4 1300.5 2352.0 MWD 5 2352.0 6365.0 REMARKS: MERGED MAIN PASS. Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD API 4 1 68 4 2 ROP MWD FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 47.5 6359 3203.25 12624 47.5 6359 GR MWD API 15.19 131.05 65.6583 12507 47.5 6300.5 ROP MWD FPH 0.08 1883.07 272.331 12475 106.5 6359 First Reading For Entire File 47.5 Last Reading For Entire File 6359 File Trailer Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.002 Physical EOF File Header Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 55.5 481.5 ROPA 114.5 540.0 LOG HEADER DATA DATE LOGGED: 27-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 540.0 TOP LOG INTERVAL (FT) : 114.0 BOTTOM LOG INTERVAL (FT) : 540.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: .0 MAXIMUM ANGLE: 1.5 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 8. 60 MUD VISCOSITY (S) : .0 MUD PH: 10.8 MUD CHLORIDES (PPM) : 800 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.960 70.0 MUD AT MAX CIRCULATING TERMPERATURE: 2.250 60.2 MUD FILTRATE AT MT: 1.940 70.0 MUD CAKE AT MT: 1.990 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD010 API 4 1 68 4 2 ROP MWD010 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 55.5 540 297.75 970 55.5 540 GR MWD010 API 15.19 77.61 29.5131 853 55.5 481.5 ROP MWD010 FPH 1 345.99 139.865 852 114.5 540 First Reading For Entire File 55.5 Last Reading For Entire File 540 File Trailer Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.003 Physical EOF File Header Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.002 Comment Record FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 482.0 1300.0 ROPA 618.5 1300.0 LOG HEADER DATA DATE LOGGED: 28-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 1300.0 TOP LOG INTERVAL (FT) : 540.0 BOTTOM LOG INTERVAL (FT) : 1300.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 3.3 MAXIMUM ANGLE: 33.7 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 8.90 MUD VISCOSITY (S) : .0 MUD PH: 10.9 MUD CHLORIDES (PPM) : 700 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.400 68.0 MUD AT MAX CIRCULATING TERMPERATURE: 1.490 63.8 MUD FILTRATE AT MT: 1.300 68.0 MUD CAKE AT MT: 1.000 68.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD030 API 4 1 68 4 2 ROP MWD030 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 482 1300 891 1637 482 1300 GR MWD030 API 17.81 87.44 44.2442 1637 482 1300 ROP MWD030 FPH 1.53 213.59 84.3941 1364 618.5 1300 First Reading For Entire File 482 Last Reading For Entire File 1300 File Trailer Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.004 Physical EOF File Header Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.003 Comment Record FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 1300.5 2293.5 ROPA 1315.5 2352.0 LOG HEADER DATA DATE LOGGED: 29-NOV-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 2352.0 TOP LOG INTERVAL (FT) : 1300.0 BOTTOM LOG INTERVAL (FT) : 2352.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 26.7 MAXIMUM ANGLE: 52. 9 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 10718512 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 16.000 DRILLER'S CASING DEPTH (FT) : 114.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 9.00 MUD VISCOSITY (S) : .0 MUD PH: 10.7 MUD CHLORIDES (PPM) : 725 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.850 .7 MUD AT MAX CIRCULATING TERMPERATURE: .190 63.8 MUD FILTRATE AT MT: 1. 920 65.0 MUD CAKE AT MT: 2.200 65.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD040 API 4 1 68 4 2 ROP MWD040 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 1300.5 2352 1826.25 2104 1300.5 2352 GR MWD040 API 25.94 118.81 66.4055 1987 1300.5 2293.5 ROP MWD040 FPH 0.36 477. 61 137.439 2074 1315.5 2352 First Reading For Entire File 1300.5 Last Reading For Entire File 2352 File Trailer Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.005 Physical EOF File Header Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.004 Comment Record FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 5 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH DGRC 2294.0 6306.5 ROPA 2352.5 6365.0 LOG HEADER DATA DATE LOGGED: 03-DEC-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 6365.0 TOP LOG INTERVAL (FT) : 2352.0 BOTTOM LOG INTERVAL (FT) : 6365.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 54.4 MAXIMUM ANGLE: 75.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 163685 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 12.250 DRILLER'S CASING DEPTH (FT) : 2342.0 BOREHOLE CONDITIONS MUD TYPE: Native/Spud Mud MUD DENSITY (LB/G) : 9.00 MUD VISCOSITY (S) : .0 MUD PH: 11.4 MUD CHLORIDES (PPM) : 400 FLUID LOSS (C3) : .0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.850 70.0 MUD AT MAX CIRCULATING TERMPERATURE: 1.610 81.4 MUD FILTRATE AT MT: 1.650 70.0 MUD CAKE AT MT: 2.100 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD050 API 4 1 68 4 2 ROP MWD050 FPH 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 2294 6365 4329.5 8143 2294 6365 GR MWD050 API 17.51 131.05 73.7381 8026 2294 6306.5 ROP MWD050 FPH 9.83 1883.07 357.368 8026 2352.5 6365 First Reading For Entire File 2294 Last Reading For Entire File 6365 File Trailer Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/02/21 Maximum Physical Record65535 File Type LO Next File Name STSLIB.006 • Physical EOF Tape Trailer Service name LISTPE Date 11/02/21 Origin STS Tape Name UNKNOWN Continuation Number 01 Next Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name LISTPE Date 11/02/21 Origin STS Reel Name UNKNOWN Continuation Number 01 Next Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File