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210-038
7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU 15-37C Pull LTP , Mill CIBPs Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 210-038 50-029-22485-03-00 13976 Conductor Surface Intermediate Production Liner 8816 78 3839 10132 3432 13860 20" 9-5/8" 7" 3-1/2" x 2-7/8" 8821 30 - 108 30 - 3869 27 - 10159 10544 - 13976 30 - 108 30 - 3551 27 - 8222 8589 - 8817 12867 , 13860 (2) 470 4760 5410 7500 none 1490 6870 7240 8430 10190 - 13953 4-1/2" 12.6# 13Cr80 25 - 10008 8252 - 8817 Structural 4-1/2" Baker S-3 Perm , 9952 , 8020 No SSSV 9952 8020 Bo York Operations Manager Jerry Lau Jerry.Lau@hilcorp.com (907) 564-5280 PRUDHOE BAY, PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028306 25 - 8075 240 0 41619 0 10 0 0 0 1075 0 N/A 13b. Pools active after work:PRUDHOE OIL STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 10:17 am, Oct 14, 2024 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2024.10.10 13:46:53 - 08'00' Bo York (1248) WCB 2-10-2025 RBDMS JSB 101524 DSR-10/14/24 ACTIVITYDATE SUMMARY 3/5/2024 CTU #2 1.75" CT - 0.156" WT - Job scope: Fish LTP/Mill CIBPs MIRU Coil Unit, Spot equipment. ***Job In Progress*** 3/6/2024 CTU #2 1.75" CT - 0.156" WT - Job Scope: Fish LTP/Mill CIBPs Continue Rig up. Make up YJ fishing BHA w/ 3" GS Spear. Stby 2.2 hrs for water. SITP 2450 psi. Bullhead 230 bbls 1% KCL and 60 bbls w/ Safelube 4 bpm @ 1380 psi final. RIH w/ YJ 2-7/8 CTC, checks, accel., (3) 3-1/8 x 4' weight bars, 2-7/8 jar, disconnect, and 3" Hyd G spear OAL 30.75'. Tag and latch LTP @ 10527'. Hit 3 jar licks up @ 17k over. Hydrostatic over-balanced w/ column of 1%. Release from fish, PU to above perfs @ 10100'. Displace CTBS to diesel 160 bbls. Final pressure 1.6 bpm @ 1820 psi. WHP naturally bled to 800 psi. Unable to pull LTP. Bled WHP to 200 psi and pulled LTP free. Up Wt 34K. Unable to POH unless taking returns @ .5 bpm. Once above GLM #1 able to close choke and POH. OOH. LD Seal assy and LTP. CIBP set inside seall assy. Elements and 1 and 1/2 slips missing. Make up 2.30" Venturi burn shoe BHA, RIH and tag plug at 13,107' CTMD. Come online and start milling plug. ***Job continued on WSR 3/7/24*** 3/7/2024 CTU #2 1.75" CT - 0.156" WT - Job Scope: Fish LTP/Mill CIBPs ***Job continued from WSR 3/6/24*** Continue milling CIBP at 13,107' CTMD. Spent a total of 3hrs milling with good motor work but no progress or stalls. POOH and found the output shaft of the motor backed off at the bottom of the rotor and the outer housing backed off at first connection above the bit box. 1.70" OD output shaft is fishable. YJ having mule-shoe built for overshot. MU and RIH w/ 1.96 CTC, 2.125" checks, accel, (2) 4' WB's, jar, disc, and overshot w/ 1-11/16 spiral grapple (OAL 26.4') FP Tbg to 2230' w/ additional 28 bbls diesel. Unable to get past top of liner. POH. RIH w/ .96 CTC, 2.125" checks, accel, (2) 4' WB's, jar, disc, yankee screwdriver, hyd centrailizer, and overshot w/ 1- 11/16 spiral grapple and 3/4 mule shoe (OAL 43.1') Tag fish @ 13095', Work and rotate down w/ yankee screwdriver to latch up. No extra PU Wt noted. POH. Recovered Fish. MU and RIH w/ YJ milling assy w/ 2.30" junk mill. ***Cont on 03/08/24*** 3/8/2024 CTU #2 1.75" CT - 0.156" WT - Job Scope: Fish LTP/Mill CIBPs ***Job continued from WSR 3/7/24*** Continue RIH with 2.30" junk mill BHA. Milled CIBP at 13,107' and pushed down to second CIBP at 13259' CTM. Mill lower CIBP and chase to lock-up @ 13860' CTM (93' above bttm perf) >20* dogleg severity this area. POH. Stuck @ 12867'. No work on motor and appear to be stuck abov the jar (no jar action) Circ around w/ 1:1 returns, Bullhead 5 bpm and attempt to work down. Pulled up to 80% 59k. Circ 10 bbls 2.25# powerVis around. Work pipe up to 90%. Standby for lube cocktail to arrive. ***Job Continued on WSR 3/9/24*** 3/8/2024 LRS 46 - Assist CTU Daily Report of Well Operations PBU 15-37C Unable to pull LTP. Bled WHP to@y 200 psi and pulled LTP free. Up Wt 34K. Unable to POH unless taking returns @ .5g@ bpm. Once above GLM #1 able to close choke and POH. OOH. LD Seal assy and LTP. Milled CIBP at 13,107' and pushed down toj second CIBP at 13259' CTM. Mill lower CIBP and chase to lock-up @ 13860' CTM Continue milling CIBP at 13,107' CTMD. () g j Tag and latch LTP @ 10527'. Hit 3 jaryg@j licks up @ 17k over. Hydrostatic over-balanced w/ column of 1%. Release from fish,@y PU to above perfs @ 10100 Daily Report of Well Operations PBU 15-37C 3/9/2024 CTU #2 1.75" CT - 0.156" WT - Job Scope: Fish LTP/Mill CIBPs ***Job Continued from WSR 3/8/24*** Continued standing by for fluids (7 hours standby). Loaded well with 160bbls of lubricant cocktail and worked pipe with no luck. Open circ sub and attempt to surge well while pumping max rate through circ sub. FP surface and coil to 2750' while pumping disconnect ball. Disconnect functioned. Work pipe - no change. RU Halliburton N2. Displace fluid in coil to N2. Work pipe to 66K. In communication w/ Tenax Energy for pump down CT cutter. RU LRS to pumped 170bbls of hot diesel down the tubing, attempted to surge well but could not get free. ***Job Continued on WSR 3/10/24*** 3/9/2024 T/I/O = 0/314/69 LRS 46 - Assist CTU (PROFILE MODIFICATION) Pumped 170 bbls 150* diesel down tbg. FWHP=1573/321/391 Secure well turn well over to CTU. 3/10/2024 CTU #2 1.75" CT - 0.156" WT - Job Scope: Fish LTP/Mill CIBPs ***Job Continued from WSR 3/9/24*** Backflow well with gas and pressure tubing up to 2,500psi. Wait on weather to POP. Not operating injector due to ambient temps -40 to -46F. ***Job Continued on WSR 3/11/2024*** 3/11/2024 CTU #2 1.75" CT - 0.156" WT - Job Scope: Fish LTP/Mill CIBPs ***Job Continued from WSR 3/10/24*** Continue to standby for weather until 15:00 hrs. Discuss plan forward w/ Tenax and OE. Kill well w/ 240 bbls 1% KCL 4.3 bpm @ 1300 psi. Dispplace coil to slick 1% KCL and FP surface and to 2000' w/ 12.7 bbls 60/40. Load tubing with 90bbls of lube cocktail and FP with 15bbls of diesel. Displace CT to 50/50 meth and perform step rate test. No flow test CT. ***Job Continued on WSR 3/12/24***. 3/12/2024 CTU #2 1.75" CT - 0.156" WT - Job Scope: Fish LTP/Mill CIBPs ***Job Continued from WSR 3/11/24*** Drift coil nubbin with cutter and rescue tool. Load rescue tool with 5k ball into coil and pump to top of coil connector. Start pumping HydraShock balls starting with 6k and working up to 8k. Pumped a total of 21 balls while stacking weight down. Pump additional 20 balls (8000 psi) w/ Wt ranging from neutral to max pull @ 58k (27k over). CTP ranged from 7100 to 8400 psi to push balls thru HydraShock seat. Prep for cut. Pump 50/50 M/W thru coil to establish circ pressures @ .5, .75, 1.0, and 1.25 bpm. Tenax discovered their firing head incompatible w/ Huntington jet cutter. No options currently available including machining a connector. Plan to cut w/ E-Line tomorrow. ***Cont on 3/13/24*** 3/13/2024 CTU #2 1.75" CT-0.156 WT - Job Scope: Fish LTP/Mill CIBPs ***Job Continued from WSR 3/12/24 Standby for weather. Build scaffolding and install kill line on BOPs. PT Kill Line. Pump 35 bbls 50/50 down Coil. Standby for cold weather again @ 2300. ***Job Continued to 3/14/24*** Daily Report of Well Operations PBU 15-37C 3/14/2024 CTU #2 1.75" CT-0.156 WT - Job Scope: Fish LTP/Mill CIBPs Standby for cold weather. Kill well with 140bbls of 50/50, and perform good No flow test on CT and TBG. Pull pipe 5k over PU weight, close pipes/slips and run in lockdowns. Hot tap and cut coil, install external CTC and install TIW valve. Remove BOP Flanged XO and Install second XO and Riser assembly. Shut down for Cold Weather @ 2300. -37 deg F. ***Job Continued to 3/15/24*** 3/14/2024 *** SUPPORT LRS COIL UNIT *** ( CUT TBG W/JET CUTTER) RIG UP YJOS STAND BY FOR WEATHER UNTIL NEXT DAY ***JOB CONTINUE ON 3/15/2024*** 3/15/2024 ***JOB CONTINUED FROM 3/14/2024*** HOIST AK-ELINE 1.188' JET CUTTER TO CUT COIL TBG PT PCE 500L-2500H RIH W/1'' CH/X 5 1'' WB/1'' KNUCKLE/1'' CCL/1.188'' JET CUTTER ***JOB CONTINUE ON 3/16/2024*** 3/15/2024 CTU #2 1.75" CT-0.156 WT - Job Scope: Fish LTP/Mill CIBPs Cold Weather Standby. -38 deg F. Rig up E-line, pressure test lubricator. RIH with Jet Cutter BHA. Cutter would not activate on depth, 12800' SLM. No Power to Tool. POOH to assess problem. ***Job Continued to 3/16/24*** 3/16/2024 ***JOB CONTINUE FROM 3/15/2024*** CUT COIL TBG IN PROGRESS RIH W/1'' CH/X5 1'' WB/1'' CCL/1.188'' JET CUTTER TO CUT COIL TBG AT 12800' , LOST 200 LBS OF TENSION AFTER CUT THE COIL, TOOL TAG AT 12820' GET STANDBY AT 200' PER WEATHER -40 F ON LOCATION CAN'T MOVE OR OPERATE THE CRANE COIL COULDN'T GET FREE AWAIT PLAN FORWARD FROM TOWN , AND RELEASE ELINE UNIT JOB COMPLETE 3/16/2024 LRS 72 Assist CTU (PROFILE MODIFICATION). Heat 2 UR tanks of 1% KCl to 140*F. Daily Report of Well Operations PBU 15-37C 3/16/2024 CTU #2 1.75" CT-0.156 WT - Job Scope: Fish LTP/Mill CIBPs At Surface with EL Jet Cutter BHA. All BHA components are good. Found broken wire in EL van going from power panel console to E/Line connection on drum. Repair cable/test good. MU Cutter and stab on well. Get to bottom @ 12840' SLM. Activate Cutter at 12800' ELM, ~5-10 feet after weight back. Good E/L indication of successful cut, 700# back on wire. POOH with Cutter Assembly. Suspend Ops at 0330 am. Cold Weather Standby. Park EL tools at 200'. Rig down E-line, make up double cold roll connector. Finally got Double Cold Roll installed, 7 hours total. Pull test to 45k. Open BOP rams after slacked back off. 35k# Normal PU weight prior to pipe stuck. Attempt to Pull coil OOH, 40k no movement. 45k no movement. 50k Pipe parted directly below the spoolable connector. Coil lost in hole. Spoolable Connector still on upper coil portion. Swab Closed Fully, 23.5 turns. Can also cycle MV 23.5 turns close/open. Very clean break directly at the 3rd cold roll. Injectivity Test = 2 bpm 1100 psi. 3 bpm 1325 psi. 50/50 meth. Swab and SSV Closed. Well and Coil fish are both 50/50 meth. Remove Scaffold. RDMO. Measurement of coil OD 1.5' above the spoolable CTC is 1.795" max and 1.664" min. Final T/I/O 0/345/50 ***Job Incomplete*** 8/11/2024 T/I/O = 2550/350/150 Temp=S/I (Assist Slickline Well Kill) TFS Unit 1 Pumped 220 BBLS Crude to Kill the Well for SL. ***JOB CONTINUES to 8-12-2024*** 8/11/2024 ***WELL S/I ON ARRIVAL*** RAN 3.68" LIB TO 325' SLM; PARTIAL IMPRESSION OF COIL. SET OVERSHOT (oal = 25", 3.75" max od, 1.55" min id, 1.75" grapple) ON COIL @ 325' SLM. JARRED ON OVERSHOT 30 MINS TO ENSURE SET. RAN 3.75" CENT, 15' x 1" STEM, AND 1.12" BULLNOSE TO 324' SLM (S/D on G fishneck initially @ 307' SLM, and fell cleanly through overshot on 2nd attempt). T-BIRD LOADED TBG W/ 220 BBLS CRUDE (TBG from 2600 to 1350 psi). ATTEMPTED TO DRIFT COIL, UNABLE TO GET 1" TOOLSTRING TO FALL @ SURFACE WITH 1350 PSI WHP. ***CONTINUED ON 8-12-24*** 8/12/2024 ***CONTINUED FROM 8-11-24*** RIG DOWN & MOBILIZE SLICKLINE. ***WELL S/I ON DEPARTURE*** 8/20/2024 LRS #2 2" Coil Tubing - Job Scope = Verify Coil is Free MIRU. Function test BOPs upon installation. Make up BOT 4" GS BHA. ***Job Continued on 8/21/2024*** Daily Report of Well Operations PBU 15-37C 8/21/2024 LRS #2 2" Coil Tubing - Job Scope = Verify Coil is Free Make up BOT 4" GS BHA. Tagged fish at 341' CTM. PUH and confirm latch. PUH to 45K (jar max 50K). Previous pick up weight of the coil was 34K. No movement. Pumped off and came back to surface. Loaded the well with 210bbl of KCLl. Well went on a vac. RBIH and latched at the same depth. Begin jarring and on the second jar lick, jar fired at 48K. No movement. Continued up to 62K (56K on coil fish and it broke free). POOH to 150' and stopped. Attempt to RBIH and can't. PUH to 130' to confirm it can still come up and it can. Re-attempt to RIH and can. Reciprocate pipe 3 times up and down 130' - clean. RIH to stack weight and pump off fish, leaving it at 331' CTMD. Well freeze protected with 5 bbl of 50/50 and 33 bbl of diesel. DSO notified of well status. Rig down move off 2" CT. ***Job Complete*** 9/2/2024 LRS CTU #1 - 1.75" Coil Pipe swap for retrieval. 9/9/2024 LRS CTU #1 - 1.75" Coil Job Objective: Retrieve stuck coil MIRU CTU. Pump drift ball, perform weekly BOP test. Lower Ram not closing all the way. Remove & Replace BOP's ...Continued on WSR 9-10-24... 9/10/2024 LRS CTU #1 - 1.75" Coil Job Objective: Retrieve stuck coil Replace BOPE. RU & perform weekly BOP test. Find leaking T-bar tilt cylinder. Return Unit to yard to repair. Back to location, Spot and RU Unit. Perform weekly BOP test. Make up fishing BHA. RIH. Unable to pass thru the well head. Pump on with 60/40. Attempt to RIH. Unable to pass. Make up Jars to BHA & RIH. Set down same spot. Break off for 1-3/4" slim BHA. ...Job in Progress................ 9/11/2024 A/CTU. Job cancelled. 9/11/2024 RS CTU #1 - 1.75" Coil Job Objective: Retrieve stuck coil MU Slim 1-3/4" BHA. RIH washing down with 60/40. RIH to 406'. Did not Tag fish. Unable to latch into bait sub. Fish moved downhole to ~660j'. Remove GS spear and rih with 2" DJN on bottom of fishing bha with hopes of jetting any debris/ice. Jetted from 660' and made it down to 730' until setting down with 1500psi WHP. POOH while pumping. Swap out DJN for 4" GS spear. Tagged again 751', no latching. Tried pumping on it with the GS and able to jet more ice to ~1000' where another set down occurred. Fish latched and came free with relative ease. WHP began slowly climbing. Continued to bullhead warm 60/40 CTBS while pulling up hole. Swap to KCL and bullhead the well. Gas in the coil fish swaps out and comes to surface. Pull toi surface and space out coil across pipe/slip rams. Close rams and push/pull test. Cannot pump off of fish. Line up to bullhead coil fish with 32bbl of KCL. Bullhead well with 270bbl of KCL. Bleed off and pump off of fish. Flow check well from below rams - no flow. Flow check well (fish) from above pipe/slip rams - no flow. ***Job Continued on 9/12/2024*** Daily Report of Well Operations PBU 15-37C 9/12/2024 LRS CTU #1 - 1.75" Coil Job Objective: Retrieve stuck coil Continue flow check well (fish) from above pipe/slip rams - no flow. Pop off. Lay down baker GS BHA. Make up spoolable connector. Drop lubricator and make up lower end of spoolable connector. Strip down over coil fish. Retreive coil fish while pumping across the top. Pulled ~12859' of 1.75" 0.156WT pipe out, plug Yellow Jacket 2-1/8 milling bha down to the disconnect. Tenax debris/shrapnel came out of the pipe above the ctc. FP well with 39bbls of diesel. Blow reel down with N2 before pipe swap. RDMO. **Left in hole: Lower end of disconnec 2.13"x1.25', dual circ sub 2.13"x 1.13', YJ motor 2.13"x10.64' and 5 blade reverse clutch mil 2.30"x0.73'l OAL: ~13.75'. Depth unkown.. Well Control drills for retrieving coil fish. ***Job complete*** . 9/13/2024 LRS CTU #1 - 1.75" Coil Job Objective: Retrieve stuck coil Travel to LRS yard and remove 1.75" scrap coil. ***Complete*** 9/15/2024 LRS #1 Objective: blow 1.75" reel down with HES cryo unit that we fished out of 15- 37. ***Complete*** From:Rixse, Melvin G (OGC) To:AOGCC Records (CED sponsored) Subject:20240319 0854 PTD210-038, PBU 15-37C Current Schematic - with coiled tubing fish Date:Tuesday, March 19, 2024 8:55:38 AM Attachments:15-37C Coil Fish Redline 3-17-24.pdf From: Jerry Lau <Jerry.Lau@hilcorp.com> Sent: Tuesday, March 19, 2024 7:01 AM To: Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov> Cc: Torin Roschinger <Torin.Roschinger@hilcorp.com>; Taylor Wellman <twellman@hilcorp.com>; Aras Worthington <Aras.Worthington@hilcorp.com> Subject: RE: [EXTERNAL] PTD210-038, PBU 15-37C Current Schematic Mel, Attached is the up-to-date redlined wellbore schematic for 15-37C. Current well status and plan forward: 15-37C is currently shut in and secured at surface with the surface safety and swab valves. Both the coiled tubing and tubing have been freeze protected. The plan forward is to keep the well shut-in until more favorable weather this spring/summer to minimize exposure to personnel should the coil need to be cut a second time, another double cold roll connector installed, and pipe recovered. The next step is for slickline to drift and tag the fish to confirm the coil depth and bait the fish for coil to continue retrieval operations. Though it’s not likely that when the coil released and fell down hole that it freed the stuck end of the pipe, however, it is possible. The first step with coil will be to diagnose if it is now free before moving towards a second cutter run with eline. Regards, Jerry Lau Hilcorp North Slope – Prudhoe Bay East FS3 Operations Engineer (DS 06,07,13,14,15) Cell: (907) 360-6233 Office: (907) 564-5280 From: Brodie Wages <David.Wages@hilcorp.com> Sent: Monday, March 18, 2024 9:19 AM To: Jerry Lau <Jerry.Lau@hilcorp.com> Cc: Melvin G Rixse <melvin.rixse@alaska.gov> Subject: Fwd: [EXTERNAL] PTD210-038, PBU 15-37C Current Schematic CAUTION: External sender. DO NOT open links or attachments from UNKNOWN senders. Hi Jerry, Please see Mel’s note below. David Wages Hilcorp - OE C. 713.380.9836 Typed on my phone, please excuse errors. Begin forwarded message: From: "Rixse, Melvin G (OGC)" <melvin.rixse@alaska.gov> Date: March 18, 2024 at 9:08:45 AM AKDT To: Brodie Wages <david.wages@hilcorp.com> Subject: [EXTERNAL] PTD210-038, PBU 15-37C Current Schematic Brodie, Can you (or the OE for this well) send the current schematic for PBU 15-37C with current stuck coil? Does Hilcorp have a plan for recovering this well? Mel Rixse Senior Petroleum Engineer (PE) Alaska Oil and Gas Conservation Commission 907-793-1231 Office 907-297-8474 Cell CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Mel Rixse at (907-793-1231 ) or (Melvin.Rixse@alaska.gov). From: Josh Stephens <Josh.Stephens@hilcorp.com> Sent: Sunday, March 17, 2024 7:28 AM To: Jerry Lau <Jerry.Lau@hilcorp.com>; Rixse, Melvin G (OGC) <melvin.rixse@alaska.gov> Cc: Dan Johnson - (C) <Dan.Johnson@hilcorp.com> Subject: FINAL UPDATE -LRS #2 CTU Hilcorp PBU overdue BOP test notification - Daily 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. Update for 3/17/24 Mel, Please see the daily update for LRS#2 on PBU 15-37 below. We were not able to recover the CT string after the E-line cut, but the well is secured and the unit is rigged down. Thanks, Josh Stephens Well Site Supervisor C: (970)779-1200 Josh.Stephens@hilcorp.com Hilcorp Alaska, LLC CTU #2 1.75" CT-0.156 WT - Job Scope: Fish LTP/Mill CIBPs At Surface with EL Jet Cutter BHA. All BHA components are good. Found broken wire in EL van going from power panel console to E/Line connection on drum. Repair cable/test good. MU Cutter and stab on well. Get to bottom @ 12840' SLM. Activate Cutter at 12800' ELM, ~5-10 feet after weight back. Good E/L indication of successful cut, 700# back on wire. POOH with Cutter Assembly. Suspend Ops at 0330 am. Cold Weather Standby. Park EL tools at 200'. Rig down E-line, make up double cold roll connector. Finally got Double Cold Roll installed, 7 hours total. Pull test to 45k. Open BOP rams after slacked back off. 35k# Normal PU weight prior to pipe stuck. Attempt to Pull coil OOH, 40k no movement. 45k no movement. 50k Pipe parted directly below the spoolable connector. Coil lost in hole. Spoolable Connector still on upper coil portion. Swab Closed Fully, 23.5 turns. Can also cycle MV 23.5 turns close/open. Very clean break directly at the 3rd cold roll. Injectivity Test = 2 bpm 1100 psi. 3 bpm 1325 psi. 50/50 meth. Swab and SSV Closed. Well and Coil fish are both 50/50 meth. Remove Scaffold. RDMO. ***Job Incomplete*** The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phonenumber is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient toensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect itssystems or data. No responsibility is accepted by the company in this regard and the recipient should carry out suchvirus and other checks as it considers appropriate. TREE= 4-1/16"CIW WELLHEAD= FMC ACTUATOR= BAKERC INITIAL KB. ELE 65.74' BF. ELEV = 33.3T KOP= 3881' Max Angle = 97' @ 1376V Datum MD= WA Datum TVD = 8800- SS 1 1 7" 20" CONDUCTOR, 113' 91.5#, H-40, D - 19.124" 9-5/8" CSG, 47#, L-80 NSCC, D = 8.681" 3876' 7" LNR CUT(04120104) 3977' 7" CBP(0420104) —F 4090--�-- Minimum ID = 2.370" @ 10532' 45KB LINER TOP PACKER .0152 pbf, ID = 3.958" 1 26#, L-80 BTC-M, .0383 bpf, D = 6.276" 1 TOP OF 3-1/2" X 2-7/8" LNR / CEMENTED I— 106" NR, 93#, L-80 STL, .0087 bpf, D = 2.99T 1132T 4-12" BKR WHIPSTOCK (0620/10) 11350' w/ RA TAG @ 11360' It I -AO RT-M n157 hof IO = 3 95A'3� PERFORATION SUMMARY REF LOG: ??? ANGLEAT TOP FEiF: 93" @ 10190' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sgz SHOT SOZ 3-3/8" 6 10190 - 10210 O 03/12/17 2" 6 11700 - 11730 C 09/02/14 2" 6 11740 - 11770 C 09/02/14 2" 6 12230 - 12670 C 07/02/10 2" 6 12940 - 12970 C 09/02/14 2" 6 12980-13010 C 09/01/14 2" 6 13150-13180 C 06/11/13 2" 6 13180-13210 C 06/11/13 2" 6 13310 - 13690 C 07/02/10 2' 6 13840 -13953 C 07/02/10 5 3 7 CSAFETY DOG EGN096S� 114 6NGLE> 70° @ 10870' ""`MAX 219" H4-1/2"HtSX NP, ID=3.813" CEMENT RAMP WIDOW 3881' - 3977' GAS LIFT MANDRELS ST M7 TVD DEV TYPE VLV LATCH PORT DATE 5 3470 3258 41 KBG-2 DONE BK 16 07/07/10 4 5509 4748 44 KBG-2 DMY BK 0 04/05(09 3 7003 5830 44 KBG-2 SO BK 20 07/07/10 2 8286 6731 43 KBG-2 DMY BK 0 05/07/04 1 9360 7496 39 KBG-2 DMY BK 0 05/07/04 9931' 4 12" FES X NIP, ID = 3.813" 9952' 7 X 4-12" BKR S3 RCR, D = 3.875' 9975' 4-12'HIS X NIP, ID=3.813' 9996' 4-12" HES XN NIP, MILLED TO 3.80" 9996' TBKRTEBACKSLV, D=525" 10006' 7" X 5" BKR ZXP LTP, D = 4.430" 10009, 4-12" WLEG, 1)-3.958" 10012' 7' X 5" HMC LNR HGR, D = 4.430" 10019' 5" X 4-12" XO, D = 3.960' 10632' 45KB LTP, D = 2.370" (07/03/10) 10640' 2-7/8" WFD CBP (02/17/17) 106" 3.70" DEFLOY SLV, ID = 3.00" 10565' 3-12" OTIS X NIP, D = 2.812" j 11327' H 3-12" X 2-7/8" XO, ID = 2.377" MLLOUT WINDOW (15-37C) 11350--???' 13265' I2-7/8" WFD CBP (06/11 I PI3TDI 13�r 6.16#, L-80 STL, .0058 bpf, ID=2.441" PRUDHOE BAY UNIT WELL: 15-37C PERMIT:'2100380 API No: 50-029-22485-03 SEC 22, T11N, R14E, 1445' FNL 8 B59' FWL DATE REV BY COMMENTS DATE REV BY COMMENTS 06/28194 0-09 ORIGINAL COMPLETION 01/11/17 JMD ADDED MISSING LTP FROM 2010 ST 68/0 1000 NORDIC CTD SIDETRACK (11537A) 02/20117 ZV/JMD SET WFD CIBP (02117/17) 0510 1104 N2ES RIG SIDETRACK 15378 03/13/17 MS/JMD ADPERFS (03112N7) 07/OSHO NORDIC CTD SIDETRACK (1537C) 09=114 JGVJMD SET CIBP/ADPERFS (09/01-02/14) Hilcorp North Slope, LLC 04/010 PJC IREFORMAT PER TALLIES ' STATE OF ALASKA •ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations ® Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate IO Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: G'/5F' 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 210-038 3. Address: P.O.Box 196612 Anchorage, Development p Exploratory 0 AK 99519-6612 Stratigraphic 0 Service 0 6. API Number: 50-029-22485-03-00 7. Property Designation(Lease Number): ADL 0028306 8. Well Name and Number: PRUDHOE BAY UNIT 15-37C 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: RECEIVED Total Depth: measured 13976 feet Plugs measured See Attachment feet true vertical 8816 feet Junk measured feet MAR 2 8 2017 Effective Depth: measured 10540 feet Packer measured 9951 feet true vertical 8586 feet Packer true vertical 8019.59 feet A®GCC Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 78 20"91.5#H-40 30-108 30-108 1490 470 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate 10133 7"26#L-80 27-10159 27-8222 7240 5410 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 10190-10210 feet 11700-11730 feet 11740-11770 feet 12230-12670 feet 12940-12970 feet 12980-13010 feet 13150-13180 feet 13180-13210 feet 13310-13690 feet 13840-13953 feet True vertical depth: 8252-8272 feet feet 8789-8789 feet 8790-8790 feet 8789-8777 feet 8783-8785 feet 8786-8788 feet 8804-8807 feet 8807-8810 feet 8820-8831 feet 8821-8817 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 25-10008 25-8074 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: MAI . 8 U! SGIANNED MLA.,- Treatment 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 238 35224 0 900 1370 Subsequent to operation: Shut-In 880 820 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations ® Exploratory 0 Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil 0 Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ ❑ WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature A46 J ___— Phone +1 907 564 4424 Date 3/28/17 /f/ 5 R f 3 ZO1i Form 10 404 Revised 5/2015 �/1����7 �� J//°/' �® � �v`i Submit Original Only . • . Plugs Attachment PRUDHOE BAY UNIT 15-37C SW Name Date MD Description 15-37C 02/18/2017 10540 2-7/8"WFD CIBP 15-37C 09/02/2014 13100 2-7/8"WFD CIBP 15-37C 06/12/2013 13265 2-7/8"WFD CIBP . • • m Q O 0 0 0 0 0 0 0 52 coo Lo co c) N U 00 0 0 0 V- CO M 3 ct N co N V VNI- N LO LC) CO 'Vi- c) O LO N O O CO Cc) N co O CO CO co CO CO 00 C1 1 1 1 1 1 1 1 1 H O CO O N. CO CO 0) IC) CO N CO N O L N CO CO 00 c ti 0) O N- CO CO E M o o , 10 10 N N. o M pp M M O) O Ri F— , Z co v N- D O c0 O CA N Ln N CO CV C) p N O r c- W f— W o 0 O O O 09 O W 0)T = J a0 J -j M C Q N tf. J co M (.0 �# O N Le) LO " ON I.L O Ua `t o _ _NCO - O C) (N0) 4 M NO) C CO M M L!') v cc CD c0 O) r J c N O) W = O W W w CO D Q Q U 0 w w r z z w W w w m O » f- zzzD U c Z J J J H 0 • Packers and SSV's Attachment PRUDHOE BAY UNIT 15-37C SW Name Type MD TVD Depscription 15-37C TBG PACKER 9951.24 8019.59 4-1/2" Baker S-3 Perm Packer 15-37C PACKER 10005.16 8071.49 5" Baker ZXP Top Packer 15-37C PACKER 10532.12 8578.82 3-1/2" Baker 45 KB Packer • • c a) ° _a N 00 II o 00 m V a co _c N — N U) a0 2 L N -0 N N CO O 7 U) 0) c a) 4)M � II coH 2 a) o U ° �M Q H a) co ° ° E cu cn � ow � a � -c ( 0 U HO (I) _0 0-0 LL o 0 Ib N L H - O H O iN 0 LU 0 c � *W°J * mN O U) UO Q „ W ZW n (_ ° U 0( w II Ha Ja 0- a H of � w - O0 N (X Q a) J () < ° O N a) 0 a U) U C Q O J W _0 I,- Z a m ~ ' N N H W (0 0 (o O a) I-- fa MQa c W CI CO (z) a) 0_ QW O = H E L � 2 ” o o cc c) u- � N 5 ED o ' 0 _w E a) Q1- pa ° z °o co a ao0 CO a Ea � z MJ LL U) H _O W O u) (z) ioD g -6plY Oa � -° � ,-, Jw p xU 0 a — Z oo 20 _ opt Hp a) a io _3o _ z 5 H o � co a) Wa co II o � a� m o � v o0 LL U in IXW N t Q 0- E2 co - W N D O c e _ H0ll I N CO G m N a) Q H O Wc� OH HU N E ° * a1_ 00 cu_i t W W m o J p 0 0 rn # .N O _ - * -0W N Z * H CI QCCpa OD Q. > a n� a) -x off , 0- Li N co co o _ 2 Q C° 1— = U ° * H N- oU ") Ofx � 3o c ° m UW2 M < c Q < -0 * co * -6 * N - O 1 O N a' 00_ O Q O J X I- c * O -- N '- _Z cfl -O 4- - - Q ON J U) r- O a I-- U) >.+ a' '~ Q O ,- N Q X N N ° O-J Z N J ( m c) Q co D_ p Ce 0> N CO X a Q Q O Q= 0 000 U w p `- H J � � � z -NoaOEL) Up0 0 _, Qo - DoQL0oQO Ocn ¢ z WO Il 0WZ cn a� x uinz � m = II � � Z °I00 E � c c � 0Z W0O c2 co ° � h II � ' � H (D0) - 0-1 (130) .7e- ,cU) W W > 0 � c � E }, Np U > 0 — OJ CD u) CJ � � 0U - u_ 0) co o = -- Z = OH2I cn 0 CO � cp rn -J � oZ � cZO � a�0u1 -I 0 � Q. ° eJHpCCvctEt J OoW � � O .inoOJM cia > - Qo - �w < Z - M � 2w o � � UU) Z CHU) � - E °O � 05I= r Z _ILO � (/) -0 I- - * 0 .° UQ : : J Ocwn _11' « a 2N _0 : ? E= � Oaa : m a2 p U 2 LU H N- p r` N O O 0 O0 H N N N N O ° N- > co m N o LC)NCO N 0 N N N N N CO Q 1 TREE 4-1/16"CNV • WELLI-EAD= FMC 15-37C 5_3? S ONOTES:WELL ANGLE>70'@ 10870"-"MAX ACTUATOR= BAKER C DOGLEG:29.2•(D 11446'".• FNITV\L KB.ELE 65.74' I I BE ELEV= 33.37' KOP= 3881' 20"CONDUCTOR, 113' I 1 2191' H4-1/2"FES X NIP,D=3.813" I Max Angle= 97'@ 13761' Datum M;)= NIA 91.5#,F+40, Datum TVD= 8800'SS D=19.124" I CEMENT RAMP WINDOW 3881'-3977' 1 9-5/8"CSG,47#,L-80 NSCC,D=8.681' —I 3876' GAS LFT MANDRELS I7"LNR OJT(04/20/04) 1 3977' F J ST MD TVD DEV TYPE VLV LATCH PORT DATE 5 3470 3258 41 KBG-2 DOME BK 16 07/07/10 7'CEP(04/20/04) H 4090' 1-.4---- 4 5509 4748 44 KBG-2 DMY BK 0 04/05/09 \':"` 16. 1F$ 3 7003 5830 44 KBG-2 SO BK 20 07/07/10 2 8286 6731 43 KBG-2 DMY BK 0 05/07/04 \1,4 04- 1 9360 7496 39 KBG-2 DMY BK 0 05/07/04 Minimum ID =2.370" @ 10532' 45KB LINER TOP PACKER 9931' I—4-1/2"HES x NIP,ID=3.813" Fir ,_ 9952' H7 X 4-1/2'BKR S3 NKR, D=3.875" ill 9975' H4-1/2"FES X NNP,D=3.813" I Il 9996' H4-1/2"FEES XN NP,MLLED TO 3.80'(06/20/10) 1 I TOP OF 4-1/2"LNR IH 9998' I 1 9998' I-17'BKR TIEBACK SLV,0=5.25" I 4-1/2"TBG,12.64,13CR-80 VAM TOP. — 10009' ►�4 10006' —7"X 5"BKR ZXP LTP,D=4.430" , 0152 pbf,D=3.958' r� 10009' —4-1/2"WLEG,fk3.958" 1 10012' H 7"X 5'FiNC LNR HGR, =4.430' 1 7"CSG,26#,L-80 BTC-M,.0383 bpf, =6.276" I—{ 10160' 1 I D 1 D I 10019' --15"X 4-1/2"XO,D=3.960" I 10532' H45KB LIP,ID=2.370"(07/03/10) I 14 Cl TOP OF 3-1/2"X 2-7/8"LNR/Ca4EYTED —I 10544• 11....6—"'A—.2 10640' H2-7/8"WFD CDP(02/17/17) I 13-1/2"LNR,9.34,L-80 STL,.0087 bpf,D=2.992" H 11327' 10644' H3.70'DEPLOY SLV,D=3.00'1 14-1/2'BKR WHPSTOCK(06/20/10) td 11350' I 1 10565' --13-1/2"OTIS X MP,D=2.812" 1 w/RA TAG@ 11360' 4-1/2"LNR,12.64,L-80 UT-M,.0152 bpf,ID=3.958" —I —11350 1 11327' H3-1/2'X 2-7/8"XO,D=2.377" I PERFORATION SUM4IARY REF LOG:777 ANGLEAT TOP PERF: 93"@ 10190' FALLOUT WINDOW(15-37C) 11350'-???' Note:Refer to Roduction DB for historical pert data SIZE SPF INTERVAL Opn/Sqz SHOT SOZ 3-3/8" 6 10190-10210 0 03/12/17 Mr 2" 6 11700-11730 C 09/02/14 ) `�` 13100' H2-718"WFD CEP(09/01/14) 2" 6 11740-11770 C 09/02/14 SP 2" 6 12230-12670 C 07/02/10 7/ ` 13265' i—2-7/8'wFD 2" 6 12940-12970 C 09/02/14 ICBP(06/11113) 2" 6 12980-13010 C 09/01/14 /4%14 2" 6 13150-13180 C 06/11/13 2" 6 13180-13210 C 06/11/13 p 2" 6 13310-13690 C 07/02/10 �� —1 13958' 1 2" 6 13840-13953 C 07/02/10 12-7/8'LNR 6.16#,L-80 STL, .0058 bpf,D=2.441' I--I 13976' DATE REV BY COMMITS DATE REV BY COIVIVENTS PRUDHOE BAY UNIT 06/28/94 D-09 ORIGINAL COMPLETION 01/11/17 JM) ADDEDMSSING LIP FROM 2010 ST WELL: 15-37C 08/01/00 NORDIC CTD SIDETRACK(15-37A) 02/20/17 ZV/JMJ SET WFD C1BP(02/17/17) F10/1T 2100380 05/08/04 N2ES RIG SIDETRACK(15-37B) 03/13/17 M5/JMD ADF FS(03/12/17) AR No: 50-029-22485-03 07/03/10 NORDIC2 CTD SIDETRACK(15-37C) SEC 22,T11NI R14E, 1445'FTE&859'FINL 09/09/14 JGL/JMD SET CIBRADPERFS(09101-02/14) 04/010 PJC REFORMAT PER TALLES BP Exploration(Alaska) ROW N Z C 0 I p-w J J m Q)0 v (� F...<_,00 N Y (6 w > v l < .S U ,7_, rG ..I x f6 Q t `` O Q N O 0 Vf y .= C O Z ,— F— >. o O ro U v rn v E • O C O .--'E'; w f.., Q. O O o c y1 r6 T Q Q < o C -p Ca J Cl: F. C , _C C C (p F— J 7 E 4-' (o 'L H 2 • w -0 . O_ > N Z Q C co N Q d Zc a o -O E �_ K U1 9 t fp W a N• N 6 L L > W to O Co Q O C Q J Q CD O C a) Z c Q Z �v o v u 5` m v .r L C "5 O O ro O C O y — a G O V C 0 • v - U > VI• ro Li VI LL N4 GO G 0 1¢.. "C V Ja N 00 V a, m , C: • L.) a o M v°, aS K 2 - a -8 % ro � t•.- ,,, 0Ca >- Ya al '' 03 c j Z a wO W .011111 ......,r9 0 I ,, a m w 0 i- co W a ` c U °° 3X �, o N o. o0 1 I . . 0 U 11J �' CD 1"10. p °' ! ♦ Z a E a V Jcu Q U m nvn W xro t U m CC a M a O p c r+ Q M Op n N I N N m Q Q1CD vs ON O C N In y E o 8 u N o Q ;..� Q U Co v C N B r E cu z v r z M M a n J j aQ N Vs E z �, ao .� t o _� - v 0 a Cpm 3 F— as (Om • Il ir Image Project Well History File Cover rage 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. QLQ - aa& a3& Well History File Identifier Organizing (done) ❑ Two -sided 1111111111111111111 ❑ Rescan Needed 1111111111111111111 RESC DIGITAL DATA OVERSIZED (Scannable) for Items: ' ❑ 9 skettes, No. A 1 ❑ Maps: V Gy1e items: Other, No/Type: CT ! JO i ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non - Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Mari Date: 42/2,5// /s/ MP Project Proofing 11111111 III Mil BY: deb Date: 6 o2 6 / /s/ P Scanning Preparation a x 30 = 0 0 + 7 = TOTAL PAGES 7 (Count does not include cover sheet) /s/ Date: W1 BY: C�Ga -I_ �� �� r �t 11 Production Scanning I II III Stage 1 Page Count from Scanned File: t U (Count does include cove heet) Pa • e Count Matches Number in Scanning Pr aration: V YES NO BY: Date: of /9_,_, 1st Mp 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 1111111111111111 ReScanned III llhlIIIIllhIIII BY: Maria Date: /s/ Comments about this file: Quality Checked III 11111111111 III 10/6/2005 Well History File Cover Page.doc DATA SUBMITTAL COMPLIANCE REPORT 6/13/2012 Permit to Drill 2100380 Well Name /No. PRUDHOE BAY UNIT 15 -37C Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 22485 -03 -00 MD 13976 TVD 8816 Completion Date 7/3/2010 Completion Status 1 -OIL Current Status 1 -OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional S. — DATA INFORMATION Types Electric or Other Logs Run: MWD DIE, GR, RES, GR / CCL / CNL (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr III Data Digital Dataset Log Log Run Interval OH / Type Med /Frmt Number Name Scale Media No Start Stop CH Received Comments ED C .Las'A$c i Directional Survey 11330 13976 Open Rpt ✓ Directional Survey 11330 13976 Open Rpt LIS Verification 10804 13976 Open 11/1/2010 LIS Veri, GR, ROP, RAD, RAS, RPD, RPS ED ✓C L,.Js 20242 Induction /Resistivity 10804 13976 Open 11/1/2010 LIS Veri, GR, ROP, RAD, RAS, RPD, RPS Log Induction /Resistivity $.25' Col 11350 13976 Open 11/1/2010 TVD MPR, GR Log Z Induction /Resistivity 25 Col 11350 13976 Open 11/1/2010 MD MPR, GR Log✓ / , Gamma Ray 25 Col 11350 13976 Open 11/1/2010 MD GR Log ✓ Neutron 5 Blu 10038 13874 Case 12/2/2010 MCNL, Mem LEE, CCL, GR, TNF, TNN ED • 'C Lis 20442 Neutron 10023 13873 Case 12/2/2010 LIS Veri, GR, CNT Well Cores /Samples Information: e Sample Interval Set Name Start Stop Sent Received Number Comments ADDITIONAL INFORMATION Well Cored? T Daily History Received? ci/ N Chips Received ? -' -frN Formation Tops N Analysis - Received? Comments: DATA SUBMITTAL COMPLIANCE REPORT 6/13/2012 Permit to Drill 2100380 Well Name /No. PRUDHOE BAY UNIT 15 -37C Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 22485 -03 -00 MD 13976 TVD 8816 Completion Date 7/3/2010 Completion Status 1 -OIL Current Status 1 -OIL UIC N -- - -- - - - - -- - - - -- ---- Compliance Reviewed By: Date: • • 11/24/10 Schlumberger NO. 5648 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BI. Color CD OWDW -SE BBSK -00030 RST (REDO) 00 - .- f 09/23/10 1 1 OWDW -SW BBSK -00034 RST /ts °A or 09/24/10 1 4 ;/4 r,) 1 L2 -07A BG27 -00008 RST r7 ®5 ,k 09/28/10 1 r14/ 1 L2-16 BG27.00007 RST (J $ /ir -4 ° � Q - I 09/27/10 ( 1 1 1 5 -37C C -37B BAUD -00031 MCNL (� - ®, 06/30/10 1 ® 1 AWJI-00107 MCNL —i® 09/10/10 1 ` 7 1 i OS•OBA AWJI -00108 MCNL / / 09/11110 1 .3 1 18 -10C BCUE -00078 MCNL / s E l 09128/10 1 _' • /a 1 04-03 BCRD -00059 RST / ' - ® 09/28/10 1 • 1 • L2 -33 B9RH -00036 RST 1 - 0 ' 09/30/10 1 t4 1 L3 -19 BCRJ -00043 RST / = 10/02/10 1 1 L3 -08 B3SQ-00094 RST 1 10/01/10 1 ♦ 1 L2 -28 BGZ7 -00009 RST / -- ®° 09/29/10 1 ♦ r� 1 L3 -05 BCRJ -00042 RST 1 -- / S 10/01/10 1 , a "4V 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Alaska Data 8 Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambell Street, Suite 400 900 E. Benson Blvd. Anchorage, AK 99503 -2838 SI I f 3 I 6 • • INTEQ Log & Data Transmittal Form To: State of Alaska -AOGCC 333 W. 7 Ave. Suite 100 Anchorage, Alaska 99501 Attention: Christine Mahnken Reference: 15-37C i Contains the following: 1 LDWG Compact Disc (Includes Graphic Image files) 1 LDWG lister summary 1 color print — GR Directional Measured Depth Log (to follow) 1 color print — MPR/Directional TVD Log (to follow) 1 color print — MPR/Directional Measured Depth Log (to follow) 1 1 , LAC Job#: 3235172 Sent by Debbie Hoke Date: 10/19200 Received by: 0 ;go Date: PLEASE ACKNOWLEDGE RECEIPT BY SIGNING & RETURNING OR FAXING YOUR COPY FAX: (907) 267-6623 Baker Hughes INTEQ "5 ERI Geoscience Advisor BAKER 795 East 94 Avenue gtP ,g,63(3 HUGHES Anchorage, Alaska 99515 INTEQ Direct: (907) 267-6612 FAX: (907) 267-6623 • • BAKER MUMMIFIES Baker Atlas PRINT DISTRIBUTION LIST • COMPANY BP EXPLORATION (ALASKA) INC COUNTY NOR1H SLOPE BURODUH WELL NAME 15 -37C STATE ALASKA FIELD PRUDHOE BAY UNIT DATE 10/15/2010 THIS DISTRIBUTION LIST AUTHORIZED BY: DEBBIE HOKE SO #: 3235172 Copies of Copies Digital Copies of Copies Digital Each Log of Film Data Each Log of Film Data 2 Company BP EXPLORATION (ALASKA) INC 1 Company DNR - DIVISION OF OIL & GAS Person PETROTECHNICAL DATA CENTER Person CORAZON MANAOIS Address LR2 -1 Address 550 WEST 7TH AVE 900 E BENSON BLVD SUITE 800 ANCHORAGE, AK 99508 ANCHORAGE, AK 99501 1 Company EXXON MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082A HOUSTON, TX 77002 1 Company STATE OF ALASKA - AOGCC Company Person CHRISTINE MAHNKEN Person Address 333 W 7TH AVE Address SUITE 100 ANCHORAGE, AK 99501 Company Company Person Person Address Address Company Company Person Person Address Address Data Disseminated By: BAKER ATLAS -PDC 17015 Aldine Westfield, Houston, Texas 77073 This Distribution List Completed By' • Page 1 of 1 STATE OF ALASKA ` ALASKA AND GAS CONSERVATION COMMIS 1i 0N 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 ❑ Service ❑ Stratigraphic 2. Operator Name: 5. Date Comp., Susp., or Aband.: 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 7/3/2010 210 - 038 ' 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612, Anchorage, Alaska 99519 -6612 6/21/2010 50 - 029 - 22485 - - 4a. Location of Well (Governmental Section): 7. Date T.D. Reached: 14. Well Name and Number: Surface: 6/26/2010 PBU 15 -37C 1446' FNL, 858' FWL, SEC. 22, T11N, R14E, UM 8. KB (ft above MSL): 59 15. Field / Pool(s): Top of Productive Horizon: 3426' FSL, 3137' FWL, SEC. 15, T11N, R14E, UM GL (ft above MSL): 31' Prudhoe Bay Field / Prudhoe Bay Total Depth: 9. Plug Back Depth (MD +TVD): Oil Pool 4577' FSL, 2447' FWL, SEC. 15, T11N, R14E, UM 13958' 8817' 1 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD +TVD): 16. Property Designation: Surface: x- 676796 y - 5960056 Zone- ASP4 13976' 8816' ADL 028306 TPI: x- 678950 y- 5964980 Zone- ASP4 11. SSSV Depth (MD +TVD): 17. Land Use Permit: Total Depth: x- 678231 y- 5966114 Zone- ASP4 None 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 DIR, GR, RES, GR / CCL / CNL 11350' 8795' 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. _ GRADE TOP I BOTTOM ToP BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# H -40 Surface 110' Surface 110' 30" 260 sx Arcticset 9 - 5/8" 47# L - 80 Surface 3876' Surface 3556' 12 - 1/4" 375 sx Class 'G'. 920 sx PF 'E' 7" 26# L -80 27' 10160' 27' 8222' 8 -1/2" 369 sx Class 'G'. 140 sx Class 'G' 4 12.6# L - 9998' )135Q' 8065' 8795' 6-1/8" 295 sx Class 'G' 3-1/2"x2-7/8" 9.3# / 6.16# L -80 10544' , 13 9785 8589' 8816' _ 4-1/8" 155 sx Class 'G' 24. Open to production or injection? ® Yes ❑ No 25. TUBING RECORD If Yes, list each interval open .SIZE DEPTH SET (MD) PACKER SET (MD / TVD) (MD +TVD of Top & Bottom; Perforation Size and Number): 2" Gun Diameter, 6 spf 4 -1/2 ", 12.6#, 13Cr80 10009' 9952' / 8020' MD TVD MD TVD 12230' - 12670' 8789' - 8777' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 13310' - 13690' 8820' - 8831' 13840' - 13953' 8821' - 8817' 'COMPLETION DEPTH INTERVAL (MD)I AMOUNT AND KIND OF MATERIAL USED '- «. •IV 2500' Freeze Protected w/ 38 Bbls of Diesel 27. PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): July 8, 2010 Flowing _ Date of Test: Hours Tested: Production For OIL -BBL: GAS -MCF: WATER -BBL: CHOKE SIZE: GAS -OIL RATIO: 7/27/2010 12 Test Period 4 1,327 2,462 -0- 65 1,856 Flow Tubing Casing Press: Calculated OIL -BBL: GAS -MCF: WATER -BBL: OIL GRAVITY-API (CORR): Press. 300 750 24 -Hour Rate ♦ 2,653 4,924 -0- Not Available 28. CORE DATA Conventional Core(s) Acquired? ❑ Yes 0 No Sidewall Core(s) Acquired? ❑ Yes 0 No If Yes to either question, list formations and intervals cored (MD +TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analyll�,sy'r �0,A0.071. None iiCC��.(y�� ��/1�) ? 9 i 2 9 2010 RBDMS JUL 2 9 2010�V�/f , Alaska MI & Gas Canz. Commission Form 10-407 Revised 12/2009 CON INUED ON REVERSE flchwt Original Only 29. GEOLOGIC MARKERS (List all formations and m encountered): 30. •RMATION TESTS NAME MD TVD Well Tested? ❑ Yes ® No Permafrost Top If yes, list intervals and formations tested, briefly summarizing test Permafrost Base results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Well kicked off in Zone 1A 10881' 8783' None (From 15 -37B) Zone 1B 12270' 8786' TDF / Zone 1A 13110' 8800' Zone 1B 13765' 8828' Formation at Total Depth (Name): Zone 1B 13765' 8828' 31. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. ) � // n Signed: Terrie Hubble t��,[ fL t ((_� Title: Drilling Technologist Date: // / l V PBU 15 - 37C 210 - 038 Prepared By Name/Number Terrie Hubble, 564 -4628 Well Number Permit No. / Approval No. Drilling Engineer: Eli Vazquez, 564 -5918 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 • • North America - ALASKA - BP Page 1 of 3 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: MOBILIZATION (MOB) Start Date: 6/16/2010 End Date: 6/18/2010 X3- 00VM8 -C (540,233.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/16/2010 05:00 - 06:30 1.50 MOB P PRE REMOVE T -MATS FROM AROUND WELL. PICK UP HERCULITE. CREW CHANGE. DISCUSS RIG MOVE OPERATIONS. MAKE RIG CHECKS AND EXTERNAL ROUNDS. 06:30 - 07:30 1.00 MOB P PRE CONTINUE TO CLEAN UP AROUND 15 -07C WELLHEAD AREA. CALL FOR DSO TO INSPECT LOCATION. CONTINUE TO PREP AREA AROUND WELLHEAD ON 15 -37C WELLHEAD. MOVE RIG OVER TO 15 -37C SPOT RIG IN FRONT OF WELL. SET DOWN RIG ON MATS. 07:30 - 13:00 5.50 BOPSUR P PRE NU BOP COMPONENTS.. CHANGE SHORT STUDS TO MEET TWO- THREAD CRITERIA AS PER DISCUSSION WITH ADW MANAGEMENT. NU BOP EQUIPMENT BACK UP. PU IN CELLAR. 13:00 - 14:00 1.00 MOB P PRE MOVE RIG OVER WELL HEAD. LEVEL AND SET DOWN ON MATS.\ 1 ACCEPT RIG AT 1400 HRS ON 6 -16 -10 14:00 - 15:00 1.00 1 MOB P PRE RU CELLAR AND EXTERNAL SUPPORT EQUIPMENT. SPOT FLOW BACK TANK, CUTTINGS BOX. BERM CELLAR. 15:00 - 18:00 3.00 BOPSUB P PRE NU BOPS IN CELLAR. 18:00 - 00:00 6.00 BOPSUB N RREP PRE CHANGEOUT STUDS ON CHOKE MANIFOLD TO COMPLY WITH BP REQUEST FOR TWO THREADS VISIBLE ABOVE NUT. CONTINUED ON REPORT 06/17/2010 6/17/2010 00:00 - 06:00 6.00 BOPSUR N RREP PRE CONTINUED FROM REPORT 06/16/2010. CONTINUE REPLACING STUD BOLTS ON CHOKE MANIFOLD TO ENSURE TWO THREADS EXPOSED PAST NUT. 06:00 - 06:30 0.50 BOPSUR I P PRE CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG ROUNDS AND OUTSIDE WALK AROUNDS. DISCUSS PLAN FORWARD TO CONTINUE CHOKE MANIFOLD STUB REPLACEMENT TASK. 06:30 - 10:30 4.00 BOPSUR P PRE CONTINUE TO REPLACE STUDS ON CHOKE MANIFOLD AS PER BP RP. 10:30 - 12:30 2.00 BOPSUR P PRE PERFORM HIGH AND LOW PRESSURE SHELL TEST ON BOP EQUIPMENT INCLUDING KILL AND CHOKE LINES, AND CHOKE MANIFOLD. 250 PSI AND 4000 PSI. HELD AND CHARTED FOR 30 MIN. PASSED. Printed 7/26/2010 11:52:02AM North America - ALASKA - BP Page 2 of 3 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: MOBILIZATION (MOB) Start Date: 6/16/2010 ( End Date: 6/18/2010 X3- OOVM8 -C (540,233.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070°17'47.101"1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 19:30 7.00 BOPSUR P PRE INTITIAL BOP TEST ON WELL 15 -37C. TEST WITNESS WAIVED BY C. SCHEVE, AOGCC. TEST ALL BOP AND RELATED EQUIPMENT AS PER AOGCC REGS, PERMIT TO DRILL, APPROVED WELL PLAN. ALL TESTS RECORDED ON CHART BY NORDIC, AND ELECTRONICALLY BY NORDIC AND SCHLUMBERGER. 19:30 - 20:30 1.00 RIGU P PRE PJSM FOR PULLING BPV. REQUESTED CERTIFICATION FOR LIFTING EQUIPMENT FOR THIS OPERATION - DISCOVER THAT THE BPV LUBRICATOR IS OUT OF CERTIFICATION FOR ITS TUBOSCOPE INSPECTION. SEND FOR CERTIFIED REPLACEMENT. ALSO, DISCOVER ONE BOLT ON BONNET OF WING VALVE THAT IS JUST FLUSH WITH NUT (NOT TWO THREADS PROUD). SEND FOR REPLACEMENT STUD. PJSM FOR PULLING COIL ACROSS WHILE WE WAIT FOR NEW BPV LUBRICATOR. 20:30 - 21:30 1.00 RIGU P PRE PULL CT ACROSS. REMOVE GRAPPLE. 21:30 - 00:00 2.50 RIGU P PRE PULL BPV. SET TWC. TEST TREE TO 3500 PSI AND CHART (PASSED). REMEDIATE STUD BOLT ON WING VALVE BONNET. CONTINUED ON REPORT 06/18/2010. 6/18/2010 00:00 - 00:30 0.50 RIGU P PRE CONTINUED FROM REPORT 06/17/2010. FINISH PT TREE. PULL TWC. 00:30 - 01:30 1.00 RIGU P PRE FILL COIL W/ 48 BBLS KCL W/ SAFELUBE. TEST ELINE: > 2000, 52 OHM. CONTACT WELL INTEGRITY COORDINATOR REGARDING HISTORY OF POSSIBLE HYDRAULIC COMMUNICATION BETWEEN OA OF 15 -37 AND CELLAR OF EMPTY WELL SLOT NEXT DOOR. WELL INTEGRITY RECOMMENDS REPEAT MITOA TO CONFIRM NO COMMUNICATION EVIDENT. 01:30 - 03:00 1.50 RIGU P PRE INSTALL CTC. PULL TEST TO 40K LB (GOOD). 03:00 - 03:45 0.75 RIGU N RREP PRE LOST RIG POWER UNTIL 03:45 03:45 - 04:45 1.00 RIGU P PRE BEGIN REHEAD BHI. RU LRS TO OA TO MITOA. 04:45 - 05:00 0.25 RIGU N DPRB PRE PJSM FOR OA PUMP TEST. 05:00 - 11:00 6.00 RIGU N DPRB PRE PRESS OA TO 2000 PSI. SLOWLY BLED TO 1680 PSI IN 15 MIN. RE= PRESSURE TO 2000 PSI. OA BLED OFF TO 700 PSI IN 1 MIN. ESTABLISH INJECTION RATE OF 4.0 BPM AT 1200 PSI. NOTE BUBBLES IN ODS CONDUCTER AREA (N ADJACENT WELL. SMALL AMOUNT OF BUBBLES NOTES. BUBBLES WHERE NOT "HYDROCARBON" OR FLAMABLE Printed 7/26/2010 11:52:02AM North America - ALASKA - $P • Page 3 of 3 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: MOBILIZATION (MOB) Start Date: 6/16/2010 End Date: 6/18/2010 X3- OOVM8 -C (540,233.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs I Task Code NPT NPT Depth I Phase Description of Operations (hr) _ (ft) 11:00 - 13:00 2.00 RIGU N DPRB PRE WELLS GROUP AND WELL INTEGRITY GROUP IDENTIFY ADDITIONAL TESTING IS REQUIRED. I DISCUSS MOVING TO 15 -32c. DISCUSS OA COMPLICATIONS AND OPTIONS WITH CTD TEAM. 13:00 - 14:00 1.00 RIGU N DPRB PRE HOLD PJSM AND THA WITH DHD CREW IN DOG HOUSE. IDENTIFY RISKS AND MITIGATION. REVIEW (PROCEDURE. 14:00 - 18:00 4.00 RIGU N DPRB PRE I PRESSURE OA WITH NITROGEN AND SHOT FLUID LEVELS IN 100 PSI INCREMENTS TO ATTEMPT TO DETERMINE DEPTH OF CASING LEAK. 18:00 - 00:00 6.00 RIGU N DPRB PRE PRESSURED OA TO 1000 PSI W/ N2, OA FLUID / LEVEL AT 50'. PRESSURED OA TO 1200 PSI W/ N2, OA FLUID LEVEL AT 42'. MITOA W/ N2 TO 1200 PSI PASSED, LOSING 10 PSI IN THE FIRST 15 MINTUES AND 5 PSI IN THE SECOND 15 MINUTES FOR A TOTAL LOSS OF 15 PSI IN 30 MINUTES. NO BUBBLING OBSERVED IN NEIGHBORING CELLARS. BLEED OAP FROM 1200 PSI TO ZERO PSI IN 7 MINUTES, ALL GAS. WELL INTEGRITY REVIEWS THE RESULTS OF THIS TEST AND GRANTS US THE GO -AHEAD TO CONTINUE WITH SIDETRACK. RDMO DHD. PJSM WITH CREW REGARDING CONCLUSION OF DHD DIAGNOSTICS AND PLAN FORWARD FOR NOZZLE RUN. CONTINUED ON RON REPORT 06/19/2010 Printed 7/26/2010 11:52:02AM • • North America • ALASKA - BP Page 1 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 10148°34'05.850"W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/19/2010 00:00 - 01:30 1.50 CLEAN P WEXIT CONTINUED FROM MOB REPORT 06/18/2010. IDENTIFY LEAK FROM OTIS QUICK UNION ABOVE ANNULUAR. UNSTAB AND REPLACE 0-RING. TEST O -RING TO 250 PSI / 3500 PSI - PASSED. 01:30 - 05:30 4.00 CLEAN P WEXIT RIH W/ NOZZLE ASSEMBLY. PARK AT 4000' MD AND CIRCULATE DIESEL FP OUT OF HOLE WITH —60% RETURNS AT 1.59 BPM AT 875 PSI. CONTINUE RIH AT 100 FPM CIRCULATING AT 0.25 BPM AT 30 PSI WITH FULL RETURNS. RETURNS BEGIN TO TAPER OFF AT 9500' MD. BY 10400' MD, HAVE ZERO RETURNS. INCREASE PUMP RATE TO 0.6 BPM, STILL NO _ _RETURNS 04:30 - WEIGHT CHECK: 43000 LB AT 10400' MD. CONTINUE RIH AT 24000 LB RIH WEIGHT NOT PUMPING. 05:15 - RIH TO 11500' MD CLEAN. PUH TO 11350' MD, UP WEIGHT 45000 LB PUMPING AT 0.3 BPM W/ NO RETURNS. � I PARKED AT 11350' MD, INCREASE RATE TO 1.5 BPM AT 710 PSI WITH 0.85 BPM RETURNS. INCREASE RATE TO 2.05 BPM AT 1250 PSI W/ 1.38 BPM RETURNS. INCREASE RATE TO 2.5 BPM AT 1840 PSI W/ 1.78 BPM RETURNS. DECREASE RATE TO 1 BPM AT 290 PSI W/ 0.25 BPM RETURNS AND BEGIN POOH. 05:30 - 06:00 0.50 CLEAN , P WEXIT PULL OUT OF HOLE CONTINUE TO TAKE RETURNE. WELL CONTINUES TO LOSE FLUID. 06:00 - 06:30 0.50 CLEAN P WEXIT CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND EXTERNAL ROUNDS. CONTINUE TO POOH. 06:30 - 08:30 ; 2.00 CLEAN P WEXIT PULL OUT OF HOLE. ORDER ADDITIONAL FLUID. 08:30 - 10:00 ; 1.50 STWHIP P WEXIT AT SURFACE. GET OFF WELL. REMOVE NOZZLE BHA. j MU BTT 3.625 X 4.5 MONOBORE WS WITH 45KB PACKER. SCRIBE TO INTEQ TOOLS WITH HOT. STAB COIL. TEST TOOLS. GET ON WELL. 10:00 - 14:00 4.00 STWHIP I P WEXIT RUN IN HOLE. MONITOR HOLE FILL. 14:00 - 14:30 0.50 L STWHIP P WEXIT LOG GR TIE IN FROM 10,900'. SUBTRACT 8.5' TIE IN. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP • Page 2 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 15:00 0.50 STWHIP P WEXIT RIH TO SETTING DEPTH. 47.2K# UP WT. RI. • • •• • • • •' CLOSE EDC. PRESSURE COIL TO 1850 PSI. WS SET A LITTLE EARLY. SET 5K# DN WT TO VERIFY SET. 15:00 - 18:00 3.00 STWHIP P WEXIT HOLD TRIP PJSM WITH DRILLER. -4 CIRCULATE OUT OF HOLE. 18:00 - 19:40 1.67 STWHIP P WEXIT TAG UP. BLEED OFF. UNSTAB. INSPECT SETTING TOOL - IT IS FULLY STROKED, INDICATING A GOOD SET. LD WHIPSTOCK SETTING ASSEMBLY. MU WINDOW MILLING ASSEMBLY WITH 3.80" MILL AND REAMER (MILLS ARE 3.80" GO / 3.79" NO -GO). 19:40 - 21:30 1.83 STWHIP P WEXIT RIH WITH MILLING ASSEMBLY. 21:30 - 22:30 1.00 STWHIP P WEXIT PARK COIL JUST ABOVE XN NIPPLE. CONTINUE TO CIRCULATE AT LOW RATE AND SLOWLY RECIPROCATE CT. HOLD UNANNOUNCED RIG EVACUATION DRILL. MUSTER RIG PERSONNEL. HOLD AAR TO REVIEW RIG EVACUATION DRILL. 22:30 - 00:00 1.50 STWHIP P WEXIT TAG XN NIPPLE AT 10015.5' DOWN, 10012.3' UP. UP WEIGHT IS CLEAN AT 42500 LB. ESTABLISH FREESPIN OF 2.61 BPM AT 2430 PSI W/ 2.27 BPM RETURNS. BHP /ECD /PVT: 4120 PSI / 9.04 PPG / 33. TIME DRILL INTO XN NIPPLE FROM 10011' CTMD. ENGAGE AT 23:50 AT 10012.8' CTMD - SEE 60 PSI INCREASE IN CIRC PRESSURE, NO WOB CHANGE. CONTINUE TIME DRILLING. IAP: 5 PSI OAP: 76 PSI COTINUED ON REPORT 06/20/2010 Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 3 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/20/2010 00:00 - 06:00 6.00 STWHIP P WEXIT CONTINUED FROM REPORT 06/19/2010 IAP: 5 PSI OAP: 76 PSI CONTINUE TIME MILLING THROUGH XN NIPPLE. MAINTAINING —2500 PSI CIRC PRESSURE AT 2.62 BPM W/ 2.41 BPM RETURNS. SEE —200 LB WOB INCREASE EACH TIME WE RIH 0.1 FT (EVERY SIX MINUTES). WOB WORKS OFF OVER EACH 6 MINUTE INTERVAL. HAVE ONE STALL AT 10014.2' CTMD WHILE TIME DRILLING ( -700 PSI OVER FREESPIN). SUSPECT WE HAD A LITTLE SLIP /STICKING OCCURING IN THIS CHROME COMPLETION. DOWN ON PUMP AND PU. RBIH MILLING, SEE MOTOR WORK SPIKE AT 10013.9' CTMD THAT WORKS OFF AND ANOTHER AT 10014.2' CTMD THAT WORKS OFF. CONTINUE TIME MILLING , AHEAD. 03:30 - PUH FROM 10014.5' CTMD. RIH THROUGH XN AT 2 FPM - SEE —300 PSI MOTOR WORK AT — 10013' CTMD, OTHERWISE CLEAN. RIH AT 2 FPM TO 10025' CTMD. BACKREAM THROUGH XN, STALL AT 10012'. 04:45 - DRESS XN NIPPLE WITH SEVERAL SLOW RECIPROCATIONS UNTIL CLEAN BOTH DIRECTIONS. 05:45 - DRY DRIFT WINDOW UP AND DOWN, CLEAN. LOST COMMUNICATION WITH TOOLS TEMPORARILY. RESTARTED TOOLS SEVERAL TIMES TO NO AVAIL. THEN, SUDDENLY REGAINED COMMUNICATION. CONTINUE RIH TO TIE -IN. 06:00 - 06:30 0.50 STWHIP I P WEXIT CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND OUT SIDE ROUNDS. CONTINUE TO RIH TO TOP OF WHIPSTOCK. 06:30 - 10:15 3.75 i STWHIP P WEXIT TAG WHIPSTOCK TOP AT 11,350.3. STALL AND OVER PULL DURING PICK UP. 45K# UP WT. COMPLETE DISPLACEMENT OF WELL TO GEOVIS. 2677 PSI FS AT 2.48 BPM IN /OUT. BEGIN TIME MILLING FROM 11.350.3' AT 0.1' PER 6 MINUTES. . NUMEROUS STALLS TRYING TO ESTABLISH A MILLING PATTERN. MILL TO 11,350.5'. 10:15 - 13:00 2.75 STWHIP P WEXIT CONTINUE TO TRY TO MILL AHEAD. CONTINUE TO STALL EVERY TIME WE TAG BTM. ESSENTIALLY LOSING GROUND. LOTS OF METAL ON MAGNETS. Printed 7/29/2010 12:11:44PM • North America - ALASKA - BP Page 4 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) I Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 15:00 2.00 STWHIP N DPRB WEXIT HOLD PJSM TO DISCUSS FLUID HANDLING DURING TRIP. EDC HAS POSITION ERROR. CIRC OUT OF HOLE AT MIN RATE. PVT: 131 BBLS. 990 PSI AT 0.67 BPM IN. 15:00 - 16:00 1.00 STWHIP N DPRB WEXIT HOLD PJSM TO DISCUSS HANDLING BHA. GET OFF WELL. INSPECT 50' COIL ABOVE CONNECTOR. UNSTAB COIL. PULL AND LD BHI TOOLS. FOUND MILL WORN TO 3.63" (DOWN FROM 3.80 ") FOUND STRING REAMER WORN TO 3.70" (DOWN FROM 3.79 ") MOTOR FEELS TIGHT. CALL FOR REPLACEMENT MILLS AND MOTOR. 16:00 - 17:00 1.00 STWHIP N DPRB WEXIT MU INTEQ TOOLS WITH NEW BTT MOTOR AN MILLS. STAB COIL. TEST TOOLS. GET ON WELL. 17:00 - 19:00 2.00 STWHIP N DPRB WEXIT RUN IN HOLE. 19:00 - 00:00 5.00 STWHIP N WEXIT RUN CLEANLY ACROSS (UP AND DOWN) XN NIPPLE AT 0.32 BPM AT 1135 PSI. DRY DRIFT XN UP AND DOWN, CLEAN. CONTINUE RIH TO TIE -IN. LOG TIE -IN, CORRECTION OF ( -8'). RIH TO TAG WHIPSTOCK. FREESPIN: 2.60 BPM AT 2650 PSI W/ FULL RETURNS. BHP /ECD /PVT: 4499 PSI / 9.92 PPG / 293 BBL. TAG WS AT 11352' MD, WEIGHT CHECK: 43000 LB CLEAN. RIH WEIGHT 20000 LB. TIME MILL INTO WINDOW W/ 3 MINUTES PER 0.1'. SEE MOTOR WORK AT 11351.2' MD, BEGIN MILLING AT 6 MINUTES PER 0.1'. CONTINUED ON REPORT 06/21/2010 6/21/2010 00:00 - 06:00 6.00 STWHIP P WEXIT CONTINUED FROM REPORT 06/20/2010. TIME MILLING WINDOW. 02:00 - MILLING AT 11355.1' MD AT 2.61 BPM AT 2730 PSI W/ FULL RETURNS. BHP /ECD /PVT: 4480 PSI / 9.88 PPG/ 291 BBL. IAP: 540 PSI OAP: 450 PSI. BLEED IAP FROM 540 PSI TO 130 PSI IN —5 MINUTES, ALL GAS. BLEED OAP FROM 450 PSI TO 110 PSI IN —5 MINUTES, ALL GAS. 05:00 - TIME MILLING AT 11358.5' MD AT 2.6 BPM AT 2720 PSI, FULL RETURNS. BHP /ECD /PVT: 4474 PSI / 9.86 PPG / 291 BBL. MILL AHEAD TO 11,360'. 06:00 - 06:30 0.50 STWHIP P WEXIT CREW CHANGE. DISCUSS OPERATIONS. MAKE 1 RIG CHECKS AND OUTSIDE ROUNDS. CONTINUE MILLING WINDOW. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 5 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 - 08:45 2.25 STWHIP P WEXIT CONTINUE TO MILL AHEAD. 2510 PSI FS AT 2.60 BPM IN /OUT. 200 -300 PSI MTR WORK. 1.9 -2.5K# DHWOB. BHP /ECD/TVD: 4473 PSI / 9.86 PPG / 8734' IA/OA/PVT: 277 PSI / 255 PSI / 289 BBLS. APPEAR TO BE DRILLING FORMATION BELOW WINDOW. DRILL /MILL TO 11,370'. 08:45 - 10:30 1.75 STWHIP P WEXIT DRESS WINDOW BY BACK REAMING AND FORWARD REAMING. MAKE THREE PASSES. 2585 PSI AT 2.60 BPM IN /OUT. 'DRY DRIFT WINDOW WITH PUMPS OFF. HOLE SMOOTH. 10:30 - 12:30 2.00 STWHIP P WEXIT HOLD PJSM TO DISCUSS MONITORING HOLE. OPEN EDC. CIRCULATE OUT OF HOLE. 12:30 - 14:00 1.50 STWHIP P WEXIT HOLD PJSM. AT SURFACE. GET OFF WELL. UNSTAB COIL. LD INTEQ TOOLS. MILLS ARE 3.79 NO GO ON WINDOW AND STRING MILLS. MU BUILD BHA. 2.1 DEG MTR WITH HTC REBUILD BICENTER. STAB COIL. TEST TOOLS. GET ON WELL. 14:00 - 16:30 2.50 i DRILL P PROD1 RUN IN HOLE. 16:30 - 16:45 0.25 DRILL P PROD1 LOG GR TIE IN. SUBTRACT 8' CORRECTION. 16:45 - 18:30 1.75 DRILL P PROD1 DRILL AHEAD FROM 11,370'. 2650 PSI FS AT 2.56 BPM IN /OUT. 150 -200 PSI MTR WORK. 0.6 -1.5K# DHWOB. DRILL AHEAD TO 11500' MD. 18:30 - 19:45 1.25 DRILL P PROD1 WIPER TO WINDOW. CALL TOWN TO RESOLVE DISCREPANCY BETWEEN DEPTH REFERENCES FOR GEO PLAN AND DIRECTIONAL PLAN PRIOR TO CLOSE APPROACH. CONFIRM THAT DIRECTIONAL PLAN IS CORRECT. CONTINUE DRILL AHEAD. Printed 7/29/2010 12:11:44PM • 1 North America - ALASKA - BP Page 6 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:45 - 21:30 1.75 DRILL P PROD1 LOG TIE -IN FROM 10840' TO 10990' MD, CORRECTION OF ( +2'). TIE -IN RA MARKER, 11360' MD. RIH TO RESUME DRILLING. FIND BIRD'S NEST IN SUBSTRUCTURE OF SATELLITE OFFICE TRAILER. AT LEAST ONE LIVE BABY BIRD IN NEST. PJSM WITH ALL RIG CREW TO DISCUSS. CONTACT GPB ENVIRONMENTAL TEAM LEAD. SHE ALLOWS US TO CONTINUE RIG OPERATIONS AND REQUESTS THAT WE UNOBTRUSIVELY BARRICADE OFF THE AREA TO MINIMIZE HUMAN DISTURBANCE. SHE ALSO AGREES TO NOTIFY THE APPROPRIATE GOVERNMENT AGENCY TOMORROW. 21:30 - 22:50 1.33 DRILL P PROD1 BACK ON BOTTOM DRILLING. FREESPIN 2.6 BPM AT 2700 PSI. PVT: 288. STAGE BARRICADE AROUND BIRD'S NEST. DRILL AHEAD TO 11650' MD. 22:50 - 23:15 0.42 DRILL P PROD1 WIPER TO WINDOW. 23:15 - 00:00 0.75 DRILL P PROD1 BACK ON BOTTOM DRILLING. FREESPIN 2.6 BPM AT 2730 PSI. PVT: 288. REPORT CONTINUED ON 06/22/2010 6/22/2010 00:00 - 01:20 1.33 DRILL P PROD1 CONTINUED FROM 06/21/2010 REPORT. DRILL AHEAD TO 11800' MD. SEE A STALL AND HARD DRILLING AT 11780' MD. 01:20 - 02:10 0.83 DRILL P PROD1 WIPER TO WINDOW (CLEAN BOTH DIRECTIONS). 02:10 - 03:30 1.33 DRILL P PROD1 ' BACK ON BOTTOM DRILLING. FREESPIN 2.6 BPM AT 2800 PSI. 03:30 - DRILLING AHEAD AT 2.62 BPM AT 3050 PSI W/ 1300LB WOB W/ FULL RETURNS. BHP /ECD /PVT: 4565 PSI / 9.92 PPG / 280 BBL. ROP 80 FPH. 03:30 - 04:15 0.75 DRILL P PROD1 WIPER TO WINDOW (CLEAN). 04:15 - 06:30 2.25 DRILL P PROD1 OPEN EDC. BEGIN POOH AT 2.96 BPM AT 2650 PSI WITH FULL RETURNS. HOLD SEVERAL NORDIC UNPLANNED POWER DOWN RIG DRILLS. CONTINUE TO POOH. 06:30 - 07:00 0.50 DRILL P j PROD1 CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND OUTSIDE ROUNDS. CONTINUE TO POOH. 07:00 - 08:00 1.00 DRILL P PROD1 AT SURFACE. FLOW CHECK. BET OFF WELL. UNSTAB COIL LD INTEQ BHA. HCC BIT GRADED 1 -2. ONE CHIPPED AND 1 BROKEN CUTTER. 08:00 - 10:00 2.00 DRILL P PROD1 HOLD PJSM TO CUT COIL FOR CHROME MANAGEMENT. CUT 120' OF COIL. RE HEAD E -COIL. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 7 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase 1 Description of Operations (hr) (ft) 10:00 - 10:40 0.67 DRILL P PROD1 HOLD PJSM. MU BHI TOOLS FOR LATERAL ASSEMBLY. 1.2 AKO WITH HYCALOG DURAFORCE CUTTERS / BICENTER. 10:40 - 12:50 2.17 DRILL P PROD1 R1H W/ LATERAL ASSEMBLY. 112:50 - 13:20 0.50 DRILL P PROD1 LOG TIE -IN AT 10855', CORRECTION OF (- 9.5'). 13:20 - 13:45 0.42 DRILL P PROD1 RIH TO BOTTOM. 113:45 - 16:00 2.25 DRILL P PROD1 BACK ON BOTTOM DRILLING. FREESPIN 2.51 BPM AT 2700 PSI. HARD TO KEEP BIT ON BOTTOM. BIT EITHER STALLS IMMEDIATELY UPON ENGAGING BOTTOM OR, IF WE CAN INITIATE A PATTERN, DRILLS OFF AND STALLS WHEN RE- ATTEMPTING TO ESTABLISH MOTOR WORK. DRILLED AHEAD TO 11970' IN THIS 2.25 HOUR PERIOD. DURING ONE OF THE FEW INTERVALS WHEN WE WERE ENGAGED WITHOUT STALLING, DRILLING PARAMETERS ARE: 2.56 BPM AT 3130 PSI W/ 1000 LB WOB WITH FULL RETURNS WITH CT SURFACE WEIGHT AT 16600 LB. BHP /ECD /PVT: 4566 PSI / 10.07 PPG / 276 BBL. LAST STALL HAD OVERPULL TO 62000 LB. BEGIN WIPER TO WINDOW. 16:00 - 16:30 0.50 DRILL P PROD1 WIPER TO WINDOW (CLEAN BOTH DIRECTIONS). 16:30 - 16:45 015 DRILL P PROD1 ATTEMPT TO DRILL AHEAD. STILL AGGRESSIVELY STALLING. 20 STALLS TOTAL ON THIS RUN. UNABLE TO MAKE ROP. BEGIN POOH TO CHECK/SWAP BIT. 116:45 - 19:30 2.75 DRILL N DPRB 11,970.0 PROD1 BEGIN POOH. IN CASED HOLE, OPEN EDC AND CIRCULATE OOH AT 2.92 BPM AT 2400 PSI WITH FULL RETURNS. IAP: 35 PSI. OAP: 165 PSI. GET WORD FROM GPB ENVIRONMENTAL TEAM LEAD ABOUT THE BIRD'S NEST UNDER THE • SATELLITE OFFICE TRAILER. SHE SAYS THAT MOVING THE NEST WHILE OCCUPIED IS A VIOLATION OF FEDERAL MIGRATORY BIRD ACT - SATELLITE OFFICE TRAILER CANNOT BE MOVED UNTIL NEST IS VACATED. COMMUNICATE THIS INFO TO TOWN. 19:30 - 20:30 1.00 DRILL N DPRB 11,970.0 PROD1 HOLD PJSM ON UNSTAB INJECTOR, C/O BIT, RESTAB INJECTOR. UNSTAB INJECTOR. PULL BHA TO SURFACE. BREAK OFF BIT. CHECK MOTOR, GOOD. RU HUGHS CHRISTENSEN BIT. RUN BHA IN HOLE AND STAB INJECTOR HEAD. BIT PULLED GRADED A 0 - 0 WITH NO DULL CHARACTERISTICS OR SIGNS OF WEAR. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP • Page 8 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W _ Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 23:00 2.50 DRILL N DPRB 11,970.0 PROD1 RIH WITH LATERAL ASSEMBLY. 2230 -hrs - LOG TIE -IN AT 10873', CORRECTION OF ( -8'). CONTINUE TO RIH TO BOTTOM. TAG BOTTOM AT 11,975'. 23:00 - 23:30 0.50 DRILL P PROD1 FREE SPIN 2760 -PSI @ 2.6 -BPM. ON BOTTOM PRESSURE 2850 -PSI @ 2.6 -BPM. MW 8.75 -PPG, ECD 10.07 -PPG, PVT 266 -BBL. IA = 17 -PSI, OA = 80 -PSI WITH 1.5k -LBS WOB, STALL AFTER 3'. CONTINUE TO WORK SLOWLY STALLING SEVERAL TIMES. CONTINUE TO WORK AND DRILL SLOWLY MAINTAIN 1 -3K -LBS WOB, 2800 - 3000 -PSI, 2.6 -BPM, 42K -LBS PU WEIGHT 23:30 - 00:00 0.50 DRILL N STUC 11,989.0 PROD1 NOTICE PIPE BEGAN TO STACK WEIGHT AND PICKED UP STRING. I-jAD A OVERPULL QF -14K -LBS WOB INDICATOR. STILL HAD FULL RETURNS. WORKED PIPE SEVERAL TIMES WITH NO LUCK OF FREEING PIPE. SHUT DOWN PUMPS AND LET SIT FOR 22 -MIN TO LET COIL RELAX. WORKED PIPE PULLING TO 90K -LBS (80% STRENGTH, 48K -LBS OVERPULL). WORK PIPE SEVERAL TIMES WITH PUMPS OFF AND PUMPS ON AT MAX PUMP RATE WITH NO LUCK OF MOVING PIPE. ABLE TO PICK UP TO 11,964 AND SLACK OFF TO 11986, 3' OFF BOTTOM. 6/23/2010 00:00 - 05:00 5.00 DRILL N STUC 11,989.0 PROD1 CONTINUE TO WORK STUCK COIL. ABLE TO HAVE FULL CIRCULATION, ABLE TO TURN THE DIRECTIONAL TOOL FACE TO TRY TO PUSH COIL OFF THE WALL WITH NO GAIN IN PROGRESS. -- 0030 -hrs CONTACT DAY WSL AND DISCUSS OPTIONS FOR PLAN FOWARD. FINISH CIRCULATING BOTTOMS UP AT 2.5 -BPM WITH 2680 -PSI. -- 0130 -hrs ATTEMPT TO WORK COIL FREE AGAIN, NO GAIN. LET SIT STATIC FOR 20 -MIN. -- 0200 -hrs ATTEMPT TO WORK COIL FREE, NO GAIN. -- 0210 -hrs PRESSURE UP DOWN THE BACKSIDE IN STAGES STARTING FROM 500 -PSI WORKING UP TO 1200 -PSI WHILE PULLING, NO GAIN. - 0230 -hrs LOWER CIRCULATION RATE TO .5 -BPM WITH 1200 -PSI WHILE WAITING FOR LITTLE RED TO ARRIVE WITH MINERAL OIL TO PUMP AROUND. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 9 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay , Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:00 - 06:00 1.00 DRILL N STUC 11,989.0 PROD1 PJSM ON RU AND PUMP MINERAL OIL. PUMP 15 -BBL MINERAL OIL. CIRCULATE UNTIL 7 -BBL OUTSICE OF THE COIL. LEAVING 5 -BBL FILLING OPEN HOLE WITH 2 -BBL INSIDE CASING. PUMP AT 2.5 -BPM WITH 3100 -PSI. LET MINERAL OIL SOAK FOR —5 MINUTES. PULL 85K - NO LUCK. ET DOWN, TURN TOOL FACE, PULL FREE AT 85K. 06:00 - 07:00 1.00 DRILL N STUC 11,989.0 PROD1 WIPER TO WINDOW, CLEAN BOTH DIRECTIONS. TIE -IN, ( +7') CORRECTION. 07:00 - 09:20 2.33 DRILL P PROD1 BACK ON BOTTOM DRILLING. FREESPIN 2.6 BPM AT 2730 PSI. DRILL AHEAD TO 12100' MD. BHP / ECD / PVT: 4554 PSI / 10.04 PPG / 203 BBL. 09:20 - 10:10 0.83 DRILL P PROD1 WIPER FROM 12100' MD AT 2.57 BPM AT 2720 PSI. 10:10 - 12:10 2.00 DRILL P PROD1 BACK ON BOTTOM DRILLING. FREESPIN 2.56 BPM AT 2700 PSI. 12050' MD SAMPLE HAS SHARD OF METAL, ROUGHLY 1" X 0.75" X 1/32 ". DRILL AHEAD AT 2.58 BPM AT 2990 PSI W/ —1500 LB WOB WITH FULL RETURNS. BHP / ECD / PVT: 4561 PSI / 10.06 PPG / 199 BBL. 11:00 - DRILLING AHEAD AT 12152' MD AT 3200 PSI AT 2.6 BPM W/ —1600 LB WOB W/ FULL RETURNS. BHP / ECD / PVT: 4607 PSI / 10.16 PPG /198 BBL. 12:00 - DRILLING AHEAD AT — 12240' MD AT 2.56 BPM AT 3350 PSI W/ 2.25K LB WOB WITH FULL RETURNS. BHP / ECD / PVT: 4609 PSI / 10.16 PPG / 199 BBL. DRILL AHEAD TO 12250' MD. 12:10 - 13:10 1.00 DRILL P PROD1 WIPER TO WINDOW, CLEAN BOTH DIRECTIONS. BEGIN MUD SWAP AS RBIH AFTER WIPER. NEW MUD EXITING BIT AS ENGAGE. 13:10 - 16:10 3.00 DRILL P PROD1 DRILL AHEAD FROM 12250' MD. NEW FREESPIN 2.56 BPM AT 2230 PSI. DRILL AHEAD AT 2.56 BPM AT 2600 PSI W/ 1100 LB WOB WITH FULL RETURNS. BHP / ECD: 4454 PSI / 9.83 PPG . 14:00 - DRILLING AHEAD AT 12290' MD AT 2.57 BPM AT 2650 PSI AT 1700 LB WOB W/ FULL RETURNS. BHP / ECD: 4390 PSI / 9.69 PPG. 16:00 - DRILLING AHEAD AT 12393' MD AT 2.59 BPM AT 2330 PSI W/ —1200 LB WOB W/ FULL RETURNS. BHP / ECD/ PVT: 4361 PSI / 9.73 PPG / 180 (MUD SWAP). TOUGH AREA HERE WITH A FEW STALLS. UP WEIGHT 45600 LB, RIH WEIGHT 20000 LB. HAVING TROUBLE ENGAGING. BEGIN WIPER TO WINDOW. Printed 7/29/2010 12:11:44PM • North America - ALASKA - BP Page 10 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:10 - 18:30 2.33 DRILL P PROD1 WIPER TO WINDOW AT 2.65 BPM AT 2310 PSI, - - - - -- -- - - CLEAN. TIE -IN, ( +5') CORRECTION. 18:30 - 21:30 3.00 DRILL P PROD1 DRILL AHEAD FROM 12,393' TO 12,551'. DRILL AT 2.5 -BPM WITH 2275 -PSI, 1.1K -LBS WOB WITH FULL RETURNS. BHP 4370 -PSI. 2000 -hrs DRILL AHEAD WITH 2.48 -BPM @ 2310 -PSI WITH 1.1K-LBS WOB, FULL RETURNS, BHP 4405 -PSI. ---- - - -- - -- - — - 21:30 - 23:00 1.50 DRILL P PROD1 WIPER TO WINDOW FROM 12,551' MD AT 2.5 -BPM AT 2150 -PSI 23:00 - 00:00 1.00 DRILL P PROD1 CONTINUE DRILLING AHEAD FREE SPIN 2140 -PSI AT 2.48 -BPM DRILL AHEAD AT 2.46 -BPM WITH 2450 -PSI, 1.6K -LBS WOB, BHP 4394 -PSI FULL RETURNS 6/24/2010 00:00 - 00:45 0.75 DRILL P PROD1 CONTINUE TO DRILL AHEAD FROM 12,650' TO 12,700'. DRILL AHEAD AT 2.48 -BPM WITH 2450 -PSI, 1.2K -LBS WOB, BHP 4450 -PSI, PVT 373 -BBLS FULL RETURNS 00:45 - 02:15 1.50 DRILL P PROD1 WIPER TRIP TO WINDOW AT 11,355' FROM 12,700'. TRIP OUT AT 30 -FPM WITH 2.5 -BPM @ 2250 -PSI IA = 270 -PSI, OA = 348 -PSI. BLEED PRESSURES DOWN TO IA = 72 -PSI, OA = 118 -PSI 02:15 - 04:30 2.25 DRILL P PROD1 DRILL AHEAD FROM 12,700' FREE SPIN @ 2.48 -BPM WITH 2200 -PSI DRILL AT 2.48 -BPM WITH 2500 -PSI, 2.2K -LBS WOB, BHP 4422 -PSI, PVT 365 -BBLS, FULL RETURNS -- 0320 -hrs DRILLING AHEAD AT 12,795. DRILLING WITH 2.48 -BPM AT 2560 -PSI, 4K -LBS WOB, BHP 4473 -PSI, PVT 363 -BBLS. BEGIN HAVING TROUBLE DRILLING.ON BOTTOM. -- 0338 -hrs DRILL TO 12,797', PERFORM 200' SHORT WIPER TRIP 0350 -hrs NOTICE WHEN GOING BACK IN GETTING HUNG UP AT 12,793' PRESSUREING UP TO 2900 -PSI. KEEP WEIGHT ON BIT, DRILL THROUGH. (GEOLOGIST REPORTED A FAULT SHOULD BE AT 12,800'). PRESSURE DROPPED TO 2650 -PSI, 2.4K -LBS WOB. PU WEIGHT 45K -LBS. FREE SPIN 2300 -PSI AT 2.5 -BPM. -- 0410 -hrs DRILL AT 12,817' HARD DRILLING ON BOTTOM. AFTER SEVERAL ATTEMPTS DECIDE TO PERFORM WIPER TRIP 25' EARLY. DRILLED TO 12,825'. IA = 140 -PSI, OA = 170 -PSI Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 11 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) j Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) - Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date 1 From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:30 - 06:00 1.50 DRILL P PROD1 WIPER TRIP TO WINDOW AT 11,360 AND TIE IN. DEPTH CORRECTION OF ( +6') TRIP OUT AT 30 -FPM WITH 2.6 -BPM 2400 -PSI, PU WEIGHT 45K -LBS. PVT 362 -BBLS TRIP IN AT 30 -FPH WITH 2.5 -BPM @ 2300 -PSI, SO WEIGHT 21 K -LBS 06:00 10:40 4.67 DRILL P PROD1 DRILL AHEAD FROM 12825' MD. FREESPIN 2450 PSI AT 2.59 BPM. 06:30 - DRILL AHEAD AT 2690 PSI AT 2.59 BPM W/ 4600 LB WOB W/ 7800 LB POSITIVE 1 SURFACE WEIGHT WITH FULL RETURNS. BHP / ECD / PVT: 4456 PSI / 9.85 PPG / 353 BBL. ROP 15 FPH. 1 0 9:30 - DRILL AHEAD AT 12895' MD AT 2.58 BPM AT 2820 PSI W/ 2.5K LB WOB W/ 12000 LB POSITIVE SURFACE WEIGHT WITH FULL RETURNS. BHP /ECD /PVT: 4527 PSI / 9.85 PPG / 353 BBL. FREESPIN 2450 PSI AT 2.58 BPM. 10:00 - DRILL AHEAD AT 12920' MD W/ SAME PARAMETERS AS ABOVE. ROP BACK UP TO -70 FPH. 10:15 - DRILLING BREAK FROM 12925' MD TO 12950' MD. ABLE TO ACHIEVE 2.5 FPM W/ NO DIFFERENTIAL. WIPER TO WINDOW FROM 12950' MD. IAP: 240 PSI. OAP: 240 PSI. 10:40 - 12:45 2.08 DRILL P PROD1 WIPER TO WINDOW (CLEAN). LOST 13 BBLS DURING WIPER. 12:45 - 15:30 1 2.75 DRILL P PROD1 BACK ON BOTTOM DRILLING. DRILLING VERY EASY - HARD TO KEEP ANY MOTOR WORK OR WOB AT 2 FPM. RESTRICT ROP TO 2 FPM AND DRILL WITH FREQUENT SHORT TRIPS TO 13100'. LOSSES HAVE STOPPED - HAVE NOT SEEN ANY LOSSES SINCE THE WIPER TRIP. — 115:30 - 17:45 2.25 DRILL P PROD1 WIPER TO WINDOW FROM 13100' MD. -I 17:45 18:20 0.58 DRILL P PROD1 j WORK COIL DURING CREW CHANGE OUT 18:20 - 20:20 2.00 DRILL P PROD1 DRILL AHEAD FROM 13,100' FREE SPIN 2500 -PSI @ 2.5 -BPM 1.5K -LBS WOB, BHP = 4550 -PSI, 2700 -PSI @ 2.6 -BPM LOST 5 -BBLS TO HOLE WHILE DRILLING THE LAST 150' 20:20 - 22:30 2.17 DRILL P PROD1 WIPER TRIP TO WINDOW FROM 13,250'. PU WEIGHT 43K -LBS, 2500 -PSI @ 2.5 -BPM. PVT 324 -BBLS 2120 -hrs TIE IN +9.5' 2130 -hrs CONTINUE RIH TO BOTTOM SO WEIGHT 1 20K -LBS. TAG BOTTOM AT 13,258' - LOST 12 -BBLS DURING TRIP Printed 7/29/2010 12:11:44PM North America - ALASKA - BP • Page 12 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 DRILL P PROD1 DRILL AHEAD FROM 13,258'. FREE SPIN 2443 -PSI @ 2.5 -BPM 1.5K -LBS WOB, 2.45 -BPM 2700 -PSI. BHP = 4580 -PSI, PVT 317 -BBLS, ECD = 10.08 -PPG 6/25/2010 00:00 - 00:45 0.75 DRILL P PROD1 DRILL AHEAD FROM 13,350'. FREE SPIN 2443 -PSI @ 2.5 -BPM 1.9K -LBS WOB, 2.5 -BPM 2750 -PSI. BHP = 4630 -PSI, ECD = 10.19 -PPG IA = 319 -PSI, OA = 260 -PSI 0045 -hrs DRILLED TO 13,383 BEGAN HAVING TROUBLE STAYING ON BOTTOM. DECIDED TO PERFORM WIPER TRIP 17' EARLY. ' 00:45 - 03:00 2.25 DRILL P PROD1 WIPER TRIP TO WINDOW FROM 13,383'. 2600 -PSI @ 2.6 -BPM. PU WEIGHT 46K -LBS. PVT 214 -BBLS. (EMPTIED 2 PITS IN PREPARATION FOR FLUID SWAP.) 03:00 05:30 2.50 DRILL P PROD1 DRILLING AHEAD FROM 13,383' FREE SPIN 2550 -PSI @ 2.5 -BPM. 1.2K -LBS WOB, BHP 4630 -PSI, ECD 10.16 -PPG 0510 -hrs DRILLING AT 13,536'. 2.56 -BPM WITH 2800 -PSI, 1.1K -LBS WOB, BHP 4626 -PSI, ECD 10.2 -PPG 05:30 - 08:30 3.00 DRILL P PROD1 WIPER TRIP TO WINDOW FROM 13,553'. 2600 -PSI @ 2.6 -BPM. PU WEIGHT 45K -LBS 08:30 - 09:45 1.25 DRILL P PROD1 RIH AT 16K LB RIH WEIGHT. BACK ON BOTTOM DRILLING. FREESPIN 2.62 BPM AT 2690 PSI. DRILL AHEAD AT 2.59 BPM AT 2900 PSI W/ 1.4K LB WOB W/ 11K LB SURFACE WEIGHT. BHP / ECD / PVT: 4662 PSI / 10.3 PPG / 294 BBLS. DRILL AHEAD TO 13643' MD. ROP SLOWING TO 15 FPH HERE. PU FOR BHA WIPER TO — 13550' MD. ATTEMPT TO RBIH, STACK WEIGHT. ATTEMPT TO PU, OVERPULL TO 74K LB AND POP FREE. CONTINUE UPHOLE FOR FULL WIPER. 09:45 - 16:45 7.00 DRILL P PROD1 BEGIN LONG WIPER. LOSE 8 BBLS IN TRIP TO WINDOW. 11:30 - IN CASED HOLE. MP: 140 PSI. OAP: 145 PSI. OPEN EDC. INCREASE RATE. PUH CIRCULATING THROUGH OPEN EDC AT 4.5 BPM AT 3800 PSI WITH NEARLY FULL RETURNS (LOST 5 BBLS FROM WINDOW TO 2700' MD). WIPER TO ABOVE 45 DEG INCLINATION SECTION OF WELL. 14:00 - WIPER TO 2700' MD 4.5 BPM AT 3830 PSI, FULL RETURNS. NO SLUGS OF CUTTINGS OBSERVED AT SURFACE, BUT CONSISTENT SUBSTANTIAL CUTTINGS RETURNED THROUGHOUT LONG TRIP. RBIH. 2 BPM AT 1920 PSI. TIE -IN, CORRECTION OF ( +17') Printed 7/29/2010 12:11:44PM • _ • Page 13 of 19 North America ALASKA - BP Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: E- ENTER- ONSHORE e: (RON) Start Date: 6/19/2010 End Date: X3- OOVM8-C (1,516,534.00 ) ( ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Task Code NPT Phase Description of Operations Hrs NPT Depth P (hr) (ft) 16:45 - 18:00 1.25 DRILL P PROD1 BACK ON BOTTOM DRILLING AHEAD FROM 13643' MD. FREESPIN 2.54 BPM AT 2650 PSI. DRILL AHEAD AT 2.54 BPM AT 2985 PSI W/ 2200 LB WOB W/ 10000 LB POSITIVE SURFACE WEIGHT WITH FULL RETURNS. BHP / ECO / PVT: 4689 PSI / 10.3 PPG / 282 BBL. ROP —60 FPH. PUS OFF BOTTOM GETTING STICKY, OVERPULLING TO —70K TO PU. GEOS AND DD REPORT NOT GETTING REQUIRED TURN TO STAY IN GOOD SAND. CONFER WITH ASSET. BEGIN TRIP FOR MOTOR/BIT. 18:00 - 22:00 4.00 DRILL N DPRB 13,696.0 PROD1 POH FOR MOTOR WITH 1.4 BEND, NEW BIT, AND AGITATOR. -- 1930 -hrs 11,300' OPEN EDC, POH 56 -FPM, PU WEIGHT 40K -LBS WITH 3300 -PSI @ 4 -BPM. -- 2150 -hrs POH TO 500'. FLOW CHECK WELL - NO FLOW -- 2200 -hrs AT SURFACE. DOUBLECHECK EDC FUNCTIONS PROPERLY. 22:00 - 23:30 1.50 DRILL N DPRB 13,696.0 PROD1 UNSTAB INJECTOR. 2250 -hrs POH WITH BHA. NOTICE SCREW BROKEN OFF ON RES TOOL. WHEN LAYING DOWN TOOLS NOTICED EDC SEALS WERE LOOSE. CHANGE OUT RES TOOL AND EDC TOOL FORA NEW ONE. 2300 -hrs BIT AT SURFACE. GRADED 2/2, 2 CHIPPED CUTTERS ON THE NOSE AND 3CHIPPED CUTTERS ON THE GUAGE ROW. 23:30 - 00:00 0.50 BOPSUR P PROD1 PJSM, FUNCTION TEST BOPE STACK. SPOT CHECK BOLTS ON EACH FLANGE FROM THE STACK TO THE ADAPTER FLANGE. LITTLE MOVEMENT ON BOLTS ON ADAPTER FLANGE AND MASTER X SSV FLANGE. 6/26/2010 00:00 - 00:30 0.50 BOPSUR P PROD1 PERFORM WEEKLY BOPE FUNCTION TEST. 00:30 - 02:00 1.50 DRILL N DPRB 13,696.0 PROD1 PJSM ONPU NEW BHA AND RIH MU BHA. -- 0140 -hrs STAB INJECTOR 02:00 - 06:00 4.00 DRILL N DPRB 13,696.0 PROD1 RIH WITH NEW BHA. CIRC AT MIN RATE .4 -BPM WITH 1025 -PSI UNTIL BIT OUT OF WINDOW. -- 0430 -hrs @ 10,870' TIE IN ( -8') -- 0435 -hrs CONTINUE RIH -- 0445 -hrs WHILE RIH STACKED OUT AT 11,799' (ON LOGS JUST OUT OF A SHALE.) BRING PUMPS UP TO 2.5 -BPM 3300 -PSI, CONTINUE IN HOLE. 06:00 - 07:00 1.00 DRILL P PROD1 BACK ON BOTTOM DRILLING. FREESPIN: 3370 PSI AT 2.63 BPM. DRILLING AHEAD FROM 13696' MD. ROP —60 FPH. PU'S STICKY, OVERPULLING TO 70K LB TO PULL FREE (NOT BIT STICKING, LOOKS LIKE DIFFERENTIAL). RETURNS 1:1. ECD: 10.44 PPG. DRILL TO 13759' MD. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 14 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 09:30 2.50 DRILL N STUC 13,759.0 PROD1 LOSE MOTOR WORK AT 13759' MD. PU IMMEDIATELY, NO MOVEMENT. WORK COIL IN AN ATTEMPT TO FREE WITH NO SUCCESS. OVERPULL TO MAX PULL (WITHIN THE 80% TRIAXIAL LOAD ELLIPSE) WITH NO SUCCESS. STACK TO MAX COMPRESSION, NO MOVEMENT. FREESPIN UNCHANGED. STILL GETTING FULL RETURNS. ECD UNCHANGED. TF ROTATES FREELY. WOB INDICATOR NOT SEEING APPLIED SURFACE COMPRESSION OR TENSION. BELIEVE WE ARE DIFFERENTIALLY STUCK. CIRCULATE FULL BOTTOMS UP AT 2.7 BPM. DOWN ON PUMP. ALLOW BHP TO STABILIZE AT —3720 PSI. ATTEMPT TO PULL FREE WITH WELL RELAXED, NO MOVEMENT UP OR DOWN. 09:30 - 10:30 1.00 DRILL N STUC 13,759.0 PROD1 CIRCULATE 35 BBL MINERAL OIL PILL. LEAD AND FOLLOW MINERAL OIL WITH 15 PILLS OF HIGH VIS MUD. STAGE MINERAL OIL IN OPEN HOLE. 10:30 - 14:45 4.25 DRILL N STUC 13,759.0 PROD1 LET MINERAL OIL SOAK. PULL FREE AT 85K LB. PUH FOR WIPER. CIRCULATE MINERAL OIL OOH AND CATCH IN PILL PIT. WIPER TO WINDOW. TIE -IN, CORRECTION OF ( +11') RBIH TO CONTINUE DRILLING AHEAD. 14:45 - 15:35 j 0.83 DRILL P PROD1 FREESPIN 3630 PSI AT 2.5 BPM. DRILL AHEAD FROM 13759' MD AT 2.5 BPM AT 3930 PSI W/ 1600 LB WOB W/ 7300 LB SURFACE WEIGHT W/ 1:1 RETURNS. BHP / ECD/PVT: 4711 PSI / 10.34 PPG / 217 BBL. IAP: 200 PSI. OAP: 330 PSI. PICKUPS MUCH CLEANER. DRILL AHEAD TO 13827' MD. 15:35 - 17:00 1.42 DRILL P PROD1 GEO WIPER. LOOKS LIKE WE MAY HAVE FAULTED INTO 1B. WIPER WHILE EVALUATE. WIPER TO 12,815'. 16:40 - GEOS SAY KEEP DRILLING AHEAD. RBIH TO DRILL AHEAD. 17:00 - 18:00 1.00 DRILL P PROD1 DRILL AHEAD FROM 13827' MD. FREESPIN 2.5 BPM AT 3570 PSI. DRILL AHEAD AT 2.5 BPM AT 3930 PSI W/ 1000 LB WOB WITH 3000 LB SURFACE WEIGHT WITH FULL RETURNS. BHP /ECD/PVT: 4752 PSI / 10.44 PPG / 219 BBL. IAP: 310 PSI, OAP: 400 PSI. 18:00 - 21:30 3.50 DRILL P PROD1 WIPER TRIP TO WINDOW FROM 13,901' 2015 - 2130 -hrs HOLD TABLE TOP KICK WHILE DRILLING AND KICK WHILE RUNNING LINER DRILL. VERY GOOD DISCUSSION. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 15 of 19 Operation Summary Report Common Well Name: 15- 371DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: f X3- 00VM8 -C (1,516,534.00 ) I Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud DatefTime: 6/6/1994 12:00:OOAM 1 Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date 1 From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:30 - 22:45 1.25 DRILL P PROD1 DRILL AHEAD FROM 13901' 2.5 -BPM WITH 3800 -PSI. 1.2K -LBS WOB, 500 -LBS TO 6K -LBS SURFACE WEIGHT ECD 10.45 -PPG, BHP 4759 -PSI, PVT 218 -BBLS. - INITIAL PU WEIGHT 57K -LBS OFF BOTTOM TO 48K -LBS ONCE OFF BOTTOM . OFF BOTTOM 2.5 -BPM WITH 3500 -PSI 22:45 - 00:00 1.25 DRILL N STUC 13,974.0 PROD1 UNABLE TO STAY ON BOTTOM. PULL OFF 50' THEN TRY TO GO BACK DOWN WITH NO SUCCESS. PULL UP 100' WITH 65K -LBS PU, UNABLE TO GO DOWN. PULL UP 200' 65K -LBS PU, UNABLE TO GO DOWN. PU WITH 82K -LBS AND UNABLE TO PULL UP ANY FURTHER OR GO DOWN. WORK PIPE SEVERAL TIMES WITH NO LUCK. -- 2300 -hrs CIRCULATE BTMS UP TO CLEAN HOLE. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP Page 16 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 I Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (ft) 6/27/2010 00:00 - 08:30 8.50 DRILL N STUC 13,974.0 PROD1 CIRCULATE BOTTOMS UP. -- 0020 -hrs WORK PIPE, NO MOVEMENT. -- 0024 -hrs TURN OFF PUMPS ALLOR WELLBORE TO RELAX -- 0052 -hrs WORK PIPE, NO MOVEMENT. -- 0056 -hrs TURN ON PUMPS PREPARING TO PUMP MINERAL OIL. ESTABLISH CIRCULATION. PRESSURED UP LIKE WE WERE PACKED OFF. GOT RETURNS BUT AT A HIGHER CIRCULATING PRESSURE, 2900 -PSI AT 1.65 -BPM. FULL RETURNS. PREVIOUS RATE AND PRESSURE WAS 3500 -PSI AT 2.5 -BPM. - CONTINUE CIRCULATING SEE IF PRESSURE DECREASES. -DP AT 1.65 -BPM IS 2000 -PSI, PREVIOUSLY 1300 -PSI DRILLING AT 2.5 -BPM. -- 0222 -hrs STAGED PUMP UP TO 3850 -PSI @ 1.85 -BPM. PUMPED 15 -BBL HI VIS SWEEP, 40 -BBL MINERAL OIL, PUMP 15 -BBL CHASER HI VIS SWEEP. PUMPS STAGED UP TO 1.91 -BPM WITH 3950 -PSI -- 0322 -hrs SHUT DOWN PUMPS AND SOAK WITH MINERAL OIL. --0337-hrs WORK COIL WITH NO LUCK, WAIT LONGER. -- 0355 -hrs WORK WITH NO LUCK. -- 0400 -hrs PUMP 10 -BBL OIL OF COIL. FULL RETURNS WHILE PUMPING. CIRC PRESSURE 3000 -PSI @ 1.7- BPM. -- 0408 -hrs LET SOAK. -- 0428 -hrs WORK COIL WITH NO LUCK. -- 0430 -hrs LET SOAK -- 0450 -hrs WORK COIL -- 0500 -hrs CIRCULATE MINERAL OIL OUT OF WELL. CIRC AT 2.4 -BPM WITH 3900 -PSI -WAIT FOR ADDITIONAL MINERAL OIL TO ARRIVE ON LOCATION. Printed 7/29/2010 12:11:44PM North America - ALASKA - BP 1 Page 17 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 1747.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:30 - 15:30 7.00 DRILL N STUC 13,974.0 PROD1 MINERAL OIL ON LOCATION. PUMP 35 BBL MINERAL OIL SPEARED AND CHASED WITH 10 BBL VISCOUS PILLS. CIRCULATING AT 2.15 BPM AT 3650 PSI W/ 1:1 RETURNS. BHP /ECD /PVT: 4684 PSI / 10.28 PPG / 167 BBL. DIFFERENTIAL PRESSURE AT TOOL IS 1156 PSI. SPOT 16.5 BBL MINERAL OIL IN OH. LET SOAK. BHP = —3750 PSI. ATTEMPT TO 4j PULL FREE. NO LUCK. CONTINUE WORK 2 UP /DOWN, NO LUCK. CIRCULATE MORE MINERAL OIL (32.7 BBL TOTAL) AND TRY TO AGITATE UP /DOWN. NO MOVEMENT. NB INCLINATION NOT ERRATIC, TOOL DELTA PRESSURE IS 1100 PSI AT 2.29 BPM AT 3270 PSI, WOB INDICATOR NOT RESPONSIVE TO APPLIED SURFACE COMPRESSION/TENSION, TF ROTATES FREELY. SD, LET MINERAL OIL SOAK. ENTIRE OH FROM STUCK POINT IS NOW FILLED WITH MINERAL OIL. BHP SEEMS TO BE STABLE AT 3826 PSI. ATTEMPT TO PULL FREE, NO LUCK. WORK UP /DOWN TO MAX PULL /PUSH, NO MOVEMENT. ROTATE TOOLFACE WHILE WORKING PIPE, STILL NO MOVEMENT OF CT (TOOLFACE STILL ROTATES FREELY). CONTINUE TO LET MINERAL OIL SOAK WHILE WOO FROM TOWN. PULL/PUSH TO MAX, NO MOVEMENT. CIRCULATE MINERAL OIL TO SURFACE AT 2.0 BPM AT 2680 PSI AT BHP /ECD /PVT: 4285 PSI / 9.41 PPG / 203 BBL. BORE PRESSURE 5312 PSI. SD WITH LEADING EDGE OF MINERAL OIL JUST REACHING SURFACE AND, WITH TOWN APPROVAL, ALLOW WELL TO RELAX WITH A LESSER HYDROSTATIC LOAD. BHP AT 3677 PSI, ATTEMPT TO PULL/PUSH, NO MOVEMENT. WOB INDICATOR STILL NOT RESPONSIVE TO APPLIED SURFACE TENSION /COMPRESSION. Printed 7/29/2010 12:11:44PM 1 Pa Page North America - ALASKA - BP S Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:30 - 22:00 6.50 DRILL N STUC 13,974.0 PROD1 RECEIVED APPROVED PLAN FORWARD FROM TOWN. HOLD PJSM W/ CREW AND DISTRIBUTE COPIES OF WRITTEN PLAN FORWARD. DISCUSS WELL CONTROL RAMIFICATIONS OF PLAN FORWARD AND APPROPRIATE STEPS TO PREVENT, IDENTIFY AND RESPOND TO WELL CONTROL ISSUES. CIRCULATE MINERAL OIL PILL OOH TO PIT 1, RECOVER 25 BBL. ONLINE DOWN CT WITH 15 BBL VISCOUS PILL FOLLOWED BY 17.5 BBLS OF MINERAL OIL FROM PIT 1 (THAT WE JUST RECOVERED FROM DOWNHOLE) FOLLOWED BY 40.5 BBLS MINERAL OIL (NEW) FOLLOWED BY 15 BBL HIGH VIS SWEEP. CIRCULATING AT 1.84 BPM AT 3675 PSI W/ 1:1 RETURNS. BHP /ECD /PVT: 4684 PSI / 10.28 PPG / 206 BBL. BORE PRESSURE 5738 PSI. -- 1740 -hrs CIRCULATE 46 BBLS MINERAL OIL INTO OH AND LET SOAK. -- 1845 -hrs WORK COIL, NO LUCK -- 1856 -hrs PUMP 6 -BBLS OF MINERAL OIL OUT COIL AT 1 -BPM WHILE WORKING COIL, NO MOVEMENT. PUMP ADDITIONAL 6 -BBLS AT 2 -BPM 3700 -PSI. WHILE WORKING COIL, NO MOVEMENT. WHILE WORKING COIL TURNING MOTOR ORIENTATION, NO CHANGE ON DOWNHOLE WOB. -- 1905 -hrs SOAK OIL. -- 1910 - 1950 -hrs HOLD PJSM AND KICK WHILE TRIPPING TABLE TOP DISCUSSION. -- 2000 -hrs WORK COIL. ON THE THIRD PULL COIL PULLED FREE. BEGAN TRIP TO WINDOW, TURNED ON PUMPS. 2.37 -BPM AT 3300 -PSI. PU WEIGHT 55K -LBS, 25 -FPM. PICK UP WEIGHT STEADILY GETTING HIGHER. POSSIBLE AS THE MINERAL OIL CIRCULATED UP THE HOLE WITH THE LIGHTER HYDROSTATIC THE BUOYANCY WEIGHT OF COIL CAUSED THE HEAVIER PU WEIGHT. AS THE OIL CIRCULATED OUT AT SURFACE NOTICED THE ECD STARTED ROSE FROM 7 -PPG TO 10.36 -PPG AND THE SURFACE PULL WEIGHT GOT LIGHTER. MAX POH PU WEIGHT WAS 86K -LBS. WOB WAS CONSTANT AT -.36 AND HAS BEEN SINCE STUCK ON BOTTOM. - RECOVERED 47 -BBL OF MINERAL OIL INTO THE PITS. Printed 7/29/2010 12:11:44PM I I North America - ALASKA - BP Page 19 of 19 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 6/19/2010 End Date: X3- 00VM8 -C (1,516,534.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations 9 22:00 - 23:30 1.50 DRILL P (ft) PROD1 GEO AND TOWN DECIDED THAT FOOTAGE QRILLED WAS ACCEPTABLE TO CALL TD AT 13,974'. -PULL COIL INTO CASING. OPEN EDC AND CIRCULATE 1.5 BOTTOMS UP. 3.45 -BPM AT 3200 -PSI. RETURNS FOR THE MOST PART HAS SAND ACROSS SHAKERS WITH A FEW GLOBS OF METAL SHAVINGS. -- 2312 -hrs CLOSE EDC. -- 2315 -hrs TIE IN WITH +12' 23:30 - 00:00 0.50 DRILL P PROD1 RIH TO BOTTOM. 2.5 -BPM 3900 -PSI. ECD 10.02 -PPG, BHP 4543 -PSI, BORE 6080 -PSI, DP 1553 -PSI. DH WOB -.045K -LBS. SO WEIGHT 17.5K -LBS 6/28/2010 00:00 - 02:00 2.00 DRILL P PROD1 RIH TO BOTTOM. - 11,790' STACK OUT. WORK THROUGH AT LOW PUMP RATE. SEE TO HAVE PLUGGED BIT NOZZLE. CIRC PRESSURE HAS INCREASED. -2.0 -BPM 3600 -PSI. ECD 9.95 -PPG, BHP 4512 -PSI, BORE 6106 -PSI, DP 1593 -PSI. DH WOB -.041K -LBS. SO WEIGHT 18.5K -LBS -- 0100 -hrs 3700 -PSI @ 2.01 -BPM. ECD 10.03, BHP 4541 -PSI, BORE 6182 -PSI, DP 1669 -PSI. DH WOB -.07 -PPG. SO WEIGHT 17K -LBS. RIH AT 30 -FPM -- 0130 -hrs TAG BOTTOM AT 13,976'. PU WEIGHT 51K-LBS - PUMPDOWN COIL 50 -BBL LINER RUNNING PILL WITH 2 -PPB ALPINE BEADS. -- 0200 -hrs SPOT PILL ON BOTTOM AND SET IN OH AS POH. 02:00 - 08:00 6.00 DRILL P PROD1 PQ1 WHILE SPQ3Ill4G LINER PII 1 IN OH. - -POH AT 30 -FPM. PUMP AT .57BPM WITH 1550 -PSI. BHP 4277 -PSI, BORE 4681 -PSI, ECD 9.37 -PPG. PVT 199 -BBLS. PU WEIGHT 47K -LBS. -FLAG AT 10,260' AND 7636' -- 0344 -hrs 11146' OPEN EDC -- 0349 -hrs POWER ON RIG WENT OUT. RESTARTED, LOOSENED 10 -WRAPS ON SPOOL. CLOSE EDC, HAD TO RIH FROM 11,146' TO 11836' TO TIGHTEN WRAPS. THEN CONTINUE POH. - 0449 -hrs 11,295' OPEN EDC PUMP AT 3 -BPM WITH 2700 -PSI. CONTINUE POH TO SURFACE. 08:00 - 09:00 j 1.00 DRILL P PROD1 AT SURFACE. LD BHA. CONTINUED ON CON REPORT 06/28/10. Printed 7/29/2010 12:11:44PM • • North America - ALASKA - BP Page 1 of 8 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 6/21/2010 End Date: X3- 00VM8 -C (1,205,883.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To 1 Hrs Task F Code NPT NPT Depth Phase Description of Operations (hr) (ft) - 6/28/2010 09:00 - 12:30 3.50 CASING P RUNPRD CONTINUED FROM RON REPORT 06/28/2010. MP: 10 PSI. OAP: 150 PSI. CUT OFF CTC. CUT 48' OF CT FOR CHROME MANAGMENT. PUMP SLACK FORWARD, RECOVERED 292' TOTAL ELINE. 12:30 - 13:30 1.00 CASING P RUNPRD DRIFT CT W/ 0.75" STEEL BALL. LAUNCH BALL WITH A 1000 PSI BUMP. RECOVER BALL AFTER 55 BBL AWAY (CT VOLUME IS 57.8). 113:30 - 15:00 1.50 CASING P RUNPRD INSTALL BOT CTC. PULL TEST TO 35K LB - GOOD. PT TO 3500 PSI, GOOD. 15:00 - 15:20 0.33 CASING P RUNPRD 1 PJSM FOR MU LINER. 15:20 - 22:30 7.17 CASING P RUNPRD MU AND DEPLOY LINER. - -RIH WITH2 -7/8" AND 3 -1/2" LINER. -- 2050 -hrs CHANGE ELEVATORS, MU LINER RUNNING TOOL AND 5 -JTS OF PH6 TUBING. -- 2200 -hrs STAB INJECTOR. -FILL COIL AND LINER 22:30 00:00 1.50 CASING P RUNPRD RIH WITH LINER ON COIL. -PUMP AT .3 -BPM WITH 1440 -PSI, RIH AT _ 64 -FPM. 6/29/2010 00:00 - 03:00 3.00 CASING P T RUNPRD RIH WITH LINER ON COIL. -.3 -BPM WITH 1530 -PSI. RIH AT 71 -FPM IN CASING. -- 0048 -hrs 11,300' STOP BEFORE WINDOW TO GET PU WEIGHT, PU 52K -LBS, SO 20K -LBS. CONTINUE IN HOLE AT 50 -FPM -- 0200 -hrs TAG AT 13,989', TOP OF LINER @ 10,543'. -PU WEIGHT 74K -LBS. SO WEIGHT 15K -LBS Printed 7/29/2010 12:16:45PM North America - ALASKA - BP Page 2 of 8 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 6/21/2010 End Date: X3- 00VM8 -C (1,205,883.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 08:00 5.00 CASING P RUNPRD DROP BALL DOWN COIL. - CIRCULATE AT 1 -BPM @ 2000 -PSI. PUMP 40 -BBLS -SLOW PUMP TO .5 -BPM @ 1600 -PSI -61 -BBL AWAY AT .61 -BPM @ 1700 -PSI -64 -BBL AWAY AT .92 -BPM @ 1900 -PSI ** *TOP OF SELRT TOOL @ 10,544' MD, 8530' TVD, 32.5 DEGREES. ** - PERFORM VERIOUS TECHNIQUES TO GET BALL TO SEAT. SURGE PUMPS FROM 1 -2 -BPM WITH 1900- 2100 -PSI. CHECK TO SEE PU WEIGHT, LINER STILL ON. SHUT DOWN THEN BRING PUMPS ON LINE TO 1 -BPM WITH 1900 -PSI, NOT ON SEAT. SHUT DOWN FOR 15 -MIN THEN BRING PUMP ON TO .5 -BPM WITH 1600 -PSI AND 1 -BPM 1900 -PSI, PUMP 3 -BBL, NOT ON SEAT. PU TO STRING WEIGHT, HOLD FOR 10 -MIN, SET BACK DOWN, BRING ON PUMPS AT .5 -BPM WITH 1600 -PSI AND 1 -BPM WITH 1900 -PSI. -- 0600 -hrs BRING PUMP RATE UP TO 1.75 -BPM WITH 2300 -PSI, HEARD BALL STILL IN COIL REEL. cIRCULATED AT THIS RATE TILL BALL WENT OVER THE GOOSENECK. SLOWED PUMPS TO 1 -BPM WITH 1875 -PSI 07::00 - PUMPED GOOSENECK -TO -TOOL VOLUME PLUS TEN BBLS AT 1.25 BPM, REDUCING RATE TO 0.4 BPM PRIOR TO THEORETICAL SEAT VOLUME. NO SEAT. SD, LET FLUID SETTLE. ONLINE WITH 5 MORE BBLS AT 1 BPM, NO SEAT. 08:00 - 10:30 2.50 CASING N HMAN RUNPRD Hand over to Igtanloc 10:30 - 11:30 1.00 CASING N HMAN RUNPRD Discuss plan forward with BTT - BTT Slope Mgmt wants to PU to see if we are still attached to the liner. Confirm with APE before PU. Discussed BTT option w/ Sean M. and he is ok with PU to see if we are attached to liner. 10:45 - PU and we are stil attached, set down 10k and come online with pump to see if ball is on seat and it is. 10:55 - SELRT sheared at 4400psi, shut down pump after establishing returns. PU to confirm we are off liner and we are released. line up to swap well to 2% KCL 11:30 - 13:30 2.00 CASING P RUNPRD Swap well to KCL 13:30 - 13:35 0.08 CASING P RUNPRD Kick while circulating drill, shut down pump and check for flow. No flow, continue circulating 13:35 - 13:56 0.35 CASING P RUNPRD PJSM TO BATCH & PUMP CMT 13:56 - 14:55 0.98 CASING P RUNPRD PRIME PUMPS AND START BATCH MIXING 140BBLS OF 15.8 ppg CMT, 32 PUMPABLE Printed 7/29/2010 12:16:45PM • North America - ALASKA - BP Page 3 of 8 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) i Start Date: 6/21/2010 End Date: X3- 00VM8 -C (1,205,883.00 ) Project: Prudhoe Bay 1 Site: PB DS 15 Rig Name /No.: NORDIC 2 I Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 07017'47.101 "1 Long: 0148°34'05.850'W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:55 - 15:05 0.17 CASING P RUNPRD CMT AT WT 4:46 min /THICKENING TIME ENDS @ (19:41) 15:05 - 15:10 0.08 CASING P RUNPRD SWAP TO BIO TO FLOOD LINE TO REEL 15:10 - 15:17 0.12 CASING P RUNPRD CMT PUMP ONLINE WITH 5 BBLS OF KCL AHEAD 15:17 - 15:35 0.30 CASING P RUNPRD CMT PUMP ONLINE WITH CMT, CMT AT MM 0 IN VOL 15:35 - 15:40 0.08 CASING P RUNPRD REDUCE RATE TO 1 BPM FOR LAST BBL, CMT PUMP OFFLINE AT 32 BBLS. LINE UP TO BACK FLUSH BIO TO CMT LINE 15:40 - 15:54 0.23 CASING P RUNPRD CLEAN BIO AT VAC TRUCK, LINE UP TO PUMP BIO DOWN THE COIL. ONLINE DOWN COIL @ 2.8 BPM TO CATCH CMT. CAUGHT CMT AT 46 BBLS, REDUCE RATE TO 2.25 BPM 15:54 - 16:00 0.10 CASING P RUNPRD 58 BBLS CMT AT LINER TOP 16:00 - 16:07 0.12 CASING P RUNPRD IN MM ACCIDENTLY ZEROED, PULLED CTDS DATA AND VOLUME ZEROED WAS AT 64.7 BBLS AWAY 16:07 - 16:13 0.10 CASING P RUNPRD ADD 64.7 BBLS TO VOLUMES BELOW 15.3 BBLS CMT AT THE SHOE (ZEROED OUT MM) 23.3 BBLS SHUT DOWN & PU TO EXHAUST 2 BBLS CMT PLUS 3 BBLS BIO 28.3 BBLS SHUT DOWN AND STACK 10K TO RELEASE PW PLUG 50.3 BBLS BUMP 51.3 BBLS MAX PUMP VOL 16:13 - 16:27 0.23 CASING P RUNPRD 23.3 BBLS AWAY, PU TO UP WT (49K) 14,007' + 13' TO 13,994'. RIH TO 14,005' STACKING 10K TO LAUNCH PEE WEE DART. ONLINE, @ 0.9 BBLS PEE WEE PLUG LANDED IN LWP. PU TO EXHAUST CMT & BIO 608PSI TO EXHAUST CMT & BIO 16:27 - 16:29 0.03 CASING P RUNPRD SHUT DOWN PUMP, OPEN BAKER CHOKE AND RIH TO 14,005' TO LAUNCH LWP 16:29 - 16:43 0.23 CASING P RUNPRD ONLINE TO LAUNCH LWP, LWP LAUNCHED AT 3,149PSI 28.9 BBLS ON MM. RATE 2.0 BPM @ 1,612PSI 29 BBLS ON OUT MM CT PRESSURE CLIMBING, LEVELED OFF AT 2,070PSI @ 31 BBLS 16:43 - 16:51 0.13 CASING P RUNPRD 48 BBLS REDUCE RATE TO LAND LWP 16:45 LWP LANDED @ 50.0 BBLS, PREESSURE UP TO 1000PSI OVER @ 2300PSI. BLEED OFF CT PRESSURE TO CHECK FOR FLOW OUT MM VOL= 33.68 BBLS - 5 BBLS EXHAUST = 28.68 BBLS BH PIPE 16:51 - 17:02 0.18 CASING P RUNPRD NO FLOW, CLOSE BAKER AND PRESSURE UP CT TO 500PSI TO UNSTING, PU AND CT PRESSURE DROPPED OFF. STOP AT LINER TOP TO CIRC 5 BBLS BIO 17:02 - 18:07 1.08 CASING P RUNPRD POOH REPLACING VOIDAGE Printed 7/29/2010 12:16:45PM North America - ALASKA - SP Page 4 of 8 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 6/21/2010 End Date: X3- 00VM8 -C (1,205,883.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:07 - 19:45 1.63 CASING P RUNPRD 6850' BIO OUT AND I AM NOT 100% SURE THE THE 2 BBLS IS CONTAMINATED. PROGRAM CALLS FOR POOH REPLACING PIPE VOIDAGE PLUS 0.5 BPM, THIS IS PUSHING THE 2 BBLS HIGHER UP THE HOLE . STOP AND PUMP 15 BBLS AT 1 BPM & POOH LOOKING FOR CMT IN RETURNS 19:45 - 20:00 0.25 CASING P RUNPRD PJSM TO LD SELRT BHA 20:00 - 20:45 0.75 CASING P RUNPRD LD SELRT BHA 20:45 - 22:25 1.67 EVAL P OTHCMP PREP FLOOR & RUN WIRE BORE BRUSH THROUGH CSH WHILE JETTING STACK 22:25 - 22:40 0.25 EVAL P OTHCMP PJSM TO MU MCNL/CLEANOUT BHA 22:40 - 00:00 1.33 EVAL P OTHCMP - MU MCNL/CLEANOUT BHA 6/30/2010 00:00 - 03:45 3.75 EVAL P OTHCMP MU MCNL / CLEAN OUT BHA — _ STAB ON INJECTOR 03:45 - 04:15 0.50 EVAL P OTHCMP PUMP STING VOLUME THROUGH BHA TO ENSURE IT IS NOT PLUGGED PUMPED 4 BBLS & PRESSURED UP TO 3,000 PSI 2 TIMES APPEARS THE BHA IS POSSIBLY PACKED OFF 04:15 - 04:30 0.25 EVAL N OTHCMP PJSM TO LD BHA & LOOK FOR PACKED OFF TOOLS 04:30 - 09:15 4.75 EVAL N OTHCMP LD BHA LOOKING FOR PACKED OFF TOOLS 09:15 - 09:30 0.25 EVAL N OTHCMP JOINT ABOVE DICONNECT IS PACKED OFF. CALLED BTT TO BRING DISCO & CIRC SUBS AND NEW MOTOR STOP FOR PJSM TO PULL SOURCE TO SURFACE 09:30 - 09:53 0.38 EVAL N OTHCMP PULLED LOGGING TOOLS OUT OF CARRIER AND FOUND SCALE PACK ON TOOL AND LAST JOINT IS PACKED OFF AS WELL AS THE MOTOR. WO BTT AND PREP TO PU NEW MOTOR AND DRIFT CSH__ 09:53 - 10:15 0.37 EVAL N OTHCMP BTT ON LOCATION AND SWS REPROGRAMING TOOL AND SWAPPING BATTERIES 10:15 - 10:30 0.25 EVAL N OTHCMP PJSM TO MU C/O BHA & LOAD SOURCE 10:30 - 11:20 0.83 EVAL N OTHCMP MU MOTOR & MILL, TRIED TO CLEAN OUT PLUGGED OFF JT AND HAD TO CHANGE IT OUT 11:20 - 12:11 0.85 EVAL N OTHCMP LOAD SOURCE AND CONTINUE RUNNING CSH 12:11 - 12:31 0.33 EVAL N OTHCMP VALVE DRILL W/ 11 STANDS IN THE HOLE 12:31 - 12:50 0.32 EVAL N OTHCMP 15 STDS IN THE HOLE (THE 30 EXTRTA JTS WE PICKED UP THAT CAME FROM OUTSIDE), LINE UP TO CIRCULATE DOWN THE CSH 12:50 - 13:44 0.90 EVAL N OTHCMP CIRC 10 BBLS THROUGH STRING WITHOUT ANY PROBLEM, CONTINUE MU CSH 13:44 - 13:58 0.23 EVAL N OTHCMP RU HOSE TO CIRC DOWN HYDRIL 13:58 - 15:15 1.28 EVAL N OTHCMP PUMPED 2 HYDRIL VOLUMES AT MAX RATE AND SHUT DOWN, CONTINUE MU CSH Printed 7/29/2010 12:16:45PM • 1 1110 North America - ALASKA - SP Page 5 of 8 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 6/21/2010 End Date: X3- 00VM8 -C (1,205,883.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:15 - 15:34 0.32 EVAL N OTHCMP HYDRIL MADE UP, PU INJECTOR AND MU TO BHA 15:34 - 16:54 1.33 EVAL P �— OTHCMP RIH, CMT UCA @ 1,899PS1 16:54 - 16:56 0.03 EVAL i P OTHCMP STOP AT 10,100 TO START LOGGING PASS 1 16:56 - 20:30 3.57 EVAL P OTHCMP LOGGING DOWN @ 30 FPM TAG TD @ 13,961' I I CLEAN RUN DOWN WITH NO MOTOR WORK LOG UP TO 10,100' @ 60 FPM WHILE LAYING IN PERF PILL 20:30 - 21:30 1.00 EVAL P OTHCMP POH TO SURFACE PJSM TO LD MCNL ASSY WHILE POH 21:30 - 00:00 2.50 EVAL P OTHCMP LD MCNL ASSY 7/1/2010 00:00 - 01:30 1.50 EVAL P OTHCMP CONTINUE LD MCNL BHA 01:30 - 01:45 0.25 EVAL P OTHCMP PJSA TO PT LINER LAP 01:45 - 02:45 1.00 EVAL P OTHCMP JUNE UP TO TEST LINER LAP PRESSURE UP TO 2,000 PSI PSI BLED OFF TO 1,600 PSI & STABILIZED IN LESS THAN ONE MINUTE REPEAT TEST WITH SAME RESULTS LINE UP TO PRESSURE UP WITH TEST PUMP PRESSURE UP TO 2,000 PSI PSI BLED OFF TO 1,600 PSI & STABILIZED IN LESS THAN ONE MINUTE REPEAT TEST WITH SAME RESULTS * * * * * ** *LINER I AP TFST FAIT I JRF * * * * * ** BLED OFF REMAINING PRESSURE 02:45 - 04:45 2.00 EVAL j P OTHCMP PREP RIG FOR BOP TEST 04:45 - 06:00 1.25 EVAL I P OTHCMP START BOP TEST 06:00 - 06:15 0.25 EVAL P OTHCMP CREW CHANGE 06:15 - 06:30 0.25 EVAL N OTHCMP WORK ON CHART RECORDER 06:30 - 06:50 0.33 EVAL P OTHCMP PJSM TO CONTINUE BOP TEST 06:50 - 11:35 4.75 EVAL P OTHCMP CONTINUE BOP TEST 11:35 - 14:00 2.42 i EVAL P OTHCMP LOAD PERF GUNS ON THE RIG TO SORT WHILE CONTINUING TO TEST BOPE 14:00 - 14:30 0.50 EVAL P OTHCMP BOP & DRAW DOWN TEST COMPLETED, PJSM TO PU INJECTOR TO TEST PACKOFF AND INNER REEL VALVE 14:30 - 15:30 1 1.00 EVAL P OTHCMP PU INJECTOR AND STAB ON LUBRICATOR TO TEST PACKOFF & INNER REEL VALVE 15:30 - 16:05 0.58 PERFOB P OTHCMP PREP RIG TO MU PERF GUNS 16:05 - 16:35 0.50 PERFOB P OTHCMP PJSM TO MU PERF GUNS 16:35 - 16:55 0.33 PERFOB P OTHCMP LOAD PERF GUN HANDLING EQUIPMENT ON THE RIG 16:55 - 18:00 1.08 PERFOB P OTHCMP START RUNNING PERF GUNS 18:00 - 18:45 0.75 PERFOB P OTHCMP CREW HANDOVER PJSA TO MU PERF BHA 18:45 - 22:15 3.50 PERFOB P OTHCMP CONTINUE MU OF PERF BHA 22:15 - 00:00 1.75 PERFOB P I OTHCMP RIH WITH PERF ASSY Printed 7/29/2010 12:16:45PM • • Page6af8 North America - ALASKA - BP Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 6/21/2010 End Date: X3- 00VM8 -C (1,205,883.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 7/2/2010 00:00 - 00:30 0.50 PERFOB P OTHCMP RIH WITH PERF BHA TO TD TAG PBTD @ 13,961' UNCORRECTED RESET DEPTH TO 13,960' 00:30 - 02:00 1.50 PERFOB P OTHCMP PU TO 13,953.7' LINE UP TO PRESSURE UP BACKSIDE TO FIRE DEEP WATER E -FIRE HEAD PERF LOWER SET OF GUNS USING DEEP WATER E -FIRE HEAD AS PER SLB PROCEDURE POSITIVE INDICATION OF GUNS FIRING PU TO 13,339.89' PUTTING UPPER GUNS ON DEPTH @ 12,670' AS PER PERF MEMO LINE UP TO PUMP DOWN THE COIL PERF WITH UPPER SET OF GUNSUSING SLB E -FIRE PERF PROCEDURE GUNS FIRED WITH POSITIVE INDICATION 02:00 - 04:00 2.00 PERFOB P OTHCMP PJSM FOR TRIP SHEET WITH SLB & NORDIC DRILLER POH STOP @ TOL & FLOW CHECK WELL - NO FLOW CONTINUE TO POH PJSA TO STAND BACK CSH 15 MINUTES FROM {SURFACE 04:00 - 06:00 2.00 PERFOB P OTHCMP LD BHA COMPONENTS & PH6 & STAND CSH BACK IN DERRICK 06:00 - 06:15 0.25 PERFOB P OTHCMP CREW CHANGE 06:15 - 06:30 0.25 PERFOB P OTHCMP PJSM TO CONTINUE PULLING CSH 06:30 - 08:30 i 2.00 PERFOB P OTHCMP CONTINUE PULLING CSH " _.__ OTHCMP PERF GUNS AT SURFACE, PJSM TO LD GUNS 08:30 - 08:45 0.25 PERFOB P _ - -- 08:45 - 10:15 1.50 PERFOB P OTHCMP PULL SPENT PERF GUNS 10:15 - 11:45 1.50 PERFOB P OTHCMP CALL BTT TO BRING LTP, CONTINUE PULLING SPENT GUNS 11:45 - 12:30 0.75 PERFOB P OTHCMP PERF GUNS OOH, ALL SHOTS FIRED. BTT ON LOCATION WITH 4.5" LTP UNLOAD HANDLING TOOLS AND SPENT GUNS 12 :30 - 13:00 0.50 TIEBAC P OTHCMP PJSM TO PU LTP BHA 113:00 - 13:30 0.50 TIEBAC P OTHCMP MU LTP BHA OTHCMP RIH W/ 4,5" LTP BHA 13:30 15:30 2.00 TIEBAC P 15:30 - 15:45 0.25 TIEBAC P OTHCMP WT CK @ 10,450' = 48K. RIH WT= 21.5' CHECK REEL IRON FOR BALL DROP POSITION ON WAY DOWN 1 TAG LOCATOR SUB @ 10,554', STACK 10K 1 DOWN TO 10,557' PU DEPTH AT WT= 10,551.3' Printed 7/29/2010 12:16:45PM • North America - ALASKA - BP Page 7 of 8 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) Start Date: 6/21/2010 End Date: X3- 00VM8 -C (1,205,883.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To 1 Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:45 - 16:40 0.92 TIEBAC P OTHCMP PU TO BALL DROP POSITION AT 10,548.3' AND LOAD CONFIRMED 5/8" STEEL BALL 15:50 BALL LAUNCHED CT VOL= 57.81 BBLS 15:53 PERFS TO TIGHT, PU TO UNSEAT SEALS TO PUMP BALL OFF REEL 16:00 BALL OFF THE REEL 22.4 BBLS 16:15 AT 75% CT VOL REDUCE RATE TO LAND BALL ON SEAT 16:22 BALL ON SEAT @ 48.6 BBLS, SHUT DOWN PUMP AND BLEED OFF COIL. RIH AND SET DOWN 10K TO 10,556.0' THEN PU TO UP WT +1' AND STOP 16:30 10,549.2' ONLINE DOWN COIL TO 2500PSI TO START THE SETTING PROCEDURE. 2500PSI SLACK OFF 10K AND BLEED CT PRESSURE TO OPSI AND SLACK OFF ANOTHER 10K. AT THIS POINT WE SHOULD BE 1 -2' HIGHER AND WE ARE 10,555' 16:40 LINE UP TO PT LTP DOWN BACKSIDE TO 2,000PSI FOR 10 MIN 16:40 - 17:00 0.33 TIEBAC P OTHCMP LINE UP TO PT LTP DOWN BACKSIDE TO 2,000PSI FOR 10 MIN 16:55 BLEED OFF WHP AND PRESSURE UP CT TO SHEAR RELEASE FROM LTP 17:00 - 18:45 1.75 TIEBAC P OTHCMP RELEASED FROM LTP LEAVING 5.88' ABOVE TOL, POOH * * * * * * * ** *LTP DEPTH 10,532.12' * * * * * * * * ** PJSA TO LD LTP BHA & MU FP BHA WHEN 15 MIN FROM SURFACE 18:45 - 20:00 1.25 TIEBAC P OTHCMP LD LTP BHA & MU FP BHA 20:00 - 20:30 0.50 RIGD P PRE RIH WITH NOZZLE TO 2,500 PSI 20:30 - 21:15 0.75 RIGD P PRE POH FROM 2,500' FP WITH DIESEL TO SURFACE PJSA TO LD NOZZLE ASSY 15 MIN FROM SURFACE 21:15 - 21:30 0.25 RIGD P PRE LD NOZZLE ASSY 21:30 - 21:45 0.25 RIGD P PRE PJSA TO GREASE TREE & SET BPV 21:45 - 22:00 0.25 RIGD P 1 PRE GREASE TREE & INSTALL BPV 22:00 - 22:45 0.75 RIGD P PRE PJSM TO SLIP & CUT DRILL LINE 22:45 - 00:00 1.25 RIGD P PRE SLIP & CUT DRILL LINE AS PER NORDIC SLIP & CUTPROCERURE 7/3/2010 00:00 - 02:15 2.25 RIGD P PRE CONTINUE TO SLIP & CUT DRILL LINE CUT 50' OF DRILL LINE 02:15 - 02:45 0.50 RIGD P PRE PJSM TO ND BOPE & CLEAN PITS 02:45 - 06:00 3.25 RIGD P PRE ND BOPE & CLEAN PITS PT TREE CAP 0-RING ON THE OTIS NIPPLE FAILED REPLACED 0-RING & RETEST TREE CAP 06:00 - 07:00 1.001 RIGD P PRE CREW CHANGE, PJSM TO CONTINUE RDMO OPS Printed 7/29/2010 12:16:45PM North America - ALASKA - BP Page 8 of 8 Operation Summary Report Common Well Name: 15- 37_DIMS AFE No Event Type: COM- ONSHORE (CON) I Start Date: 6/21/2010 I End Date: X3- OOVM8 -C (1,205,883.00 ) Project: Prudhoe Bay Site: PB DS 15 Rig Name /No.: NORDIC 2 Spud Date/Time: 6/6/1994 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °17'47.101 "1 Long: 0148 °34'05.850 "W Active Datum: 15 -37 @65.7ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 08:00 1.00 RIGD P PRE PJSM TO MOVE RIG OFF WELL 07:00 RIG RELEASED _ I RIG MOVED OFF WELL Printed 7/29/2010 12:16:45PM II • Mill BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 15 15- 37_DIMS / Lat: 070°17'47.101"i Long: 0148°34'05.850"W 15 -37C Survey: MWD Survey Report - Geographic 28 June, 2010 0 bP • • BAKER 0 H b MOMS Survey Report - Geographic p 1NTEQ Company: North America - ALASKA - BP Local Co - ordinate Reference: Well 1 5-37_DIMS Project: Prudhoe Bay TVD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Site: PB DS 15 MD Reference: 15 -37B © 59.50ft (Nabors 2ES) Well: 15 37_DIMS North Reference: True Wellbore: 15 - 37C Survey Calculation Method: Minimum Curvature Design: 15 -37C Database: EDM .16 - Anc Prod - WH24P Project Prudhoe Bay, GPB, PRUDHOE BAY Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB DS 15, TR -11 -14 Site Position: Northing: 5,958,837.36ft Latitude: 70° 17' 35.236 N From: Map Easting: 676,296.98ft Longitude: 148° 34' 21.213 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 1.34 ° Well 15 37_DIMS API No 5002922485 Well Position +N / - S 0.00 ft Northing: 5,960,055.71 ft Latitude: 70° 17' 47.101 N +E / - 0.00 ft Easting: 676,795.62 ft Longitude: 148° 34' 5.849 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 31.00ft Wellbore 15 - 37C API No 500292248503 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (') r) (nT) BGGM2009 3/1/2010 22.34 80.94 57,688 Design 15 - 37C Aud Notes: Version: Phase: ACTUAL Tie On Depth: 11,330.77 Vertical Section: Depth From (TVD) +NI-S +E / -W Direction (ft) (ft) (ft) (*) 28.50 0.00 0.00 14.68 Survey Program Date: 6/28/2010 From To (ft) (ft) Survey (Wellbore) Tool Name Description 93.76 3,868.76 15 -37 Srvy 5 GYD CT CMS (15 -37) GYD -CT -CMS Gyrodata cont.casing m/s 3,868.76 3,875.00 15 -37 Srvy 1 MWD (15 -37) MWD MWD - Standard 3,900.00 8,596.00 15 -37B Srvy 5 -2 GYD CT CMS (15 -37B) GYD -CT -CMS Gyrodata cont.casing m/s 8,596.00 11,330.77 15 -37B Srvy 4 MWD +IFR +MS (15 -37B) MWD +IFR +MS MWD + IFR + Multi Station 11,351.00 13,976.00 MWD (15 -37C) MWD MWD - Standard 6/28/2010 8:48:30AM Page 2 COMPASS 2003.16 Build 71 . 11 • HIM BAKER HUMS'S Survey Report - Geographic bp INTEQ Company: North America - ALASKA - BP Local Co - ordinate Reference: Well 1 5-37_DIMS Project: Prudhoe Bay TVD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Site: PB DS 15 MD Reference: 15 -37B © 59.50ft (Nabors 2ES) Well: 15 DIMS North Reference: True Wellbore: 15 - 37C Survey Calculation Method: Minimum Curvature Design: 15 - 37C Database: EDM .16 - Anc Prod - WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E / -W Northing Easting (ft) ( °) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 11,330.77 90.25 109.06 8,794.97 4,752.94 2,702.21 5,964,870.59 679,385.11 70° 18' 33.841 N 148° 32' 47.036 W TIP 11,351.00 91.01 109.83 8,794.75 4,746.20 2,721.28 5,964,864.30 679,404.33 70° 18' 33.775 N 148° 32' 46.479 W KOP 11,370.20 91.69 108.00 8,794.29 4,739.98 2,739.44 5,964,858.51 679,422.63 70° 18' 33.714 N 148° 32' 45.950 W 11,386.93 94.57 105.75 8,793.38 4,735.13 2,755.42 5,964,854.04 679,438.72 70° 18' 33.666 N 148° 32' 45.484 W 11,403.57 96.22 102.50 8,791.81 4,731.09 2,771.48 5,964,850.38 679,454.87 70° 18' 33.626 N 148° 32' 45.015 W 11,417.49 95.99 99.46 8,790.33 4,728.45 2,785.07 5,964,848.06 679,468.52 70° 18' 33.600 N 148° 32' 44.619 W 11,434.43 95.41 95.43 8,788.65 4,726.27 2,801.78 5,964,846.27 679,485.27 70° 18' 33.579 N 148° 32' 44.132 W i 11,446.07 94.86 92.06 8,787.61 4,725.51 2,813.35 5,964,845.79 679,496.85 70° 18' 33.571 N 148° 32' 43.794 W 11,475.50 94.15 84.84 8,785.29 4,726.31 2,842.66 5,964,847.27 679,526.13 70° 18' 33.579 N 148° 32' 42.940 W i 11,500.69 92.24 79.53 8,783.89 4,729.73 2,867.56 5,964,851.27 679,550.95 70° 18' 33.612 N 148° 32' 42.213 W 11,533.49 91.53 72.43 8,782.81 4,737.66 2,899.35 5,964,859.96 679,582.54 70° 18' 33.690 N 148° 32' 41.286 W 11,564.19 87.67 65.50 8,783.02 4,748.67 2,927.98 5,964,871.64 679,610.90 70° 18' 33.798 N 148° 32' 40.451 W 11,590.79 87.88 59.58 8,784.06 4,760.92 2,951.55 5,964,884.44 679,634.18 70° 18' 33.919 N 148° 32' 39.763 W 11,622.62 88.56 52.87 8,785.05 4,778.60 2,977.98 5,964,902.73 679,660.18 70° 18' 34.093 N 148° 32' 38.992 W 11,653.64 87.08 46.60 8,786.23 4,798.62 3,001.63 5,964,923.30 679,683.35 70° 18' 34.289 N 148° 32' 38.302 W 11,683.04 86.99 40.28 8,787.75 4,819.93 3,021.80 5,964,945.08 679,703.02 70° 18' 34.499 N 148° 32' 37.713 W 11,713.95 88.22 34.78 8,789.04 4,844.41 3,040.61 5,964,969.99 679,721.24 70° 18' 34.740 N 148° 32' 37.165 W 11,741.11 89.69 29.38 8,789.54 4,867.41 3,055.02 5,964,993.32 679,735.11 70° 18' 34.966 N 148° 32' 36.744 W 11,773.95 89.32 21.07 8,789.82 4,897.10 3,069.01 5,965,023.32 679,748.39 70° 18' 35.258 N 148° 32' 36.336 W 11,802.66 90.06 14.20 8,789.98 4,924.44 3,077.70 5,965,050.86 679,756.44 70° 18' 35.526 N 148° 32' 36.082 W 11,833.24 90.21 7.02 8,789.91 4,954.48 3,083.33 5,965,081.02 679,761.35 70° 18' 35.822 N 148° 32' 35.917 W 11,861.72 89.39 1.39 8,790.01 4,982.87 3,085.41 5,965,109.45 679,762.77 70° 18' 36.101 N 148° 32' 35.856 W 1 11,895.89 87.58 353.35 8,790.91 5,016.96 3,083.85 5,965,143.50 679,760.41 70° 18' 36.436 N 148° 32' 35.901 W 11,923.25 87.05 349.13 8,792.19 5,043.97 3,079.69 5,965,170.40 679,755.61 70° 18' 36.702 N 148° 32' 36.023 W 11,951.91 88.31 344.67 8,793.35 5,071.85 3,073.20 5,965,198.12 679,748.47 70° 18' 36.976 N 148° 32' 36.211 W 11,980.97 89.20 340.64 8,793.99 5,099.58 3,064.54 5,965,225.63 679,739.16 70° 18' 37.249 N 148° 32' 36.464 W 12,010.88 87.54 335.62 8,794.84 5,127.31 3,053.41 5,965,253.10 679,727.38 70° 18' 37.522 N 148° 32' 36.788 W 12,046.12 89.82 328.75 8,795.65 5,158.45 3,036.98 5,965,283.84 679,710.22 70° 18' 37.828 N 148° 32' 37.267 W 12,077.64 92.15 323.73 8,795.11 5,184.64 3,019.47 5,965,309.61 679,692.11 70° 18' 38.086 N 148° 32' 37.777 W 12,107.51 93.44 318.06 8,793.65 5,207.78 3,000.66 5,965,332.30 679,672.76 70° 18' 38.313 N 148° 32' 38.326 W, 12,136.29 94.30 313.71 8,791.71 5,228.39 2,980.68 5,965,352.43 679,652.30 70° 18' 38.516 N 148° 32' 38.908 W 12,167.61 89.08 306.23 8,790.78 5,248.48 2,956.71 5,965,371.95 679,627.86 70° 18' 38.714 N 148° 32' 39.607 W 12,197.78 91.66 300.86 8,790.59 5,265.15 2,931.58 5,965,388.02 679,602.35 70° 18' 38.878 N 148° 32' 40.340 W 12,227.26 92.43 297.80 8,789.53 5,279.58 2,905.90 5,965,401.84 679,576.34 70° 18' 39.020 N 148° 32' 41.089 W 12,259.44 96.89 304.11 8,786.92 5,296.06 2,878.41 5,965,417.66 679,548.47 70° 18' 39.182 N 148° 32' 41.890 W 12,287.32 94.86 309.92 8,784.06 5,312.75 2,856.28 5,965,433.83 679,525.95 70° 18' 39.346 N 148° 32' 42.536 W 12,317.67 92.06 314.36 8,782.23 5,333.07 2,833.82 5,965,453.61 679,503.03 70° 18' 39.546 N 148° 32' 43.191 W 12,347.43 92.46 321.13 8,781.05 5,355.06 2,813.84 5,965,475.13 679,482.53 70° 18' 39.763 N 148° 32' 43.773 W 12,379.23 94.36 326.16 8,779.16 5,380.62 2,795.03 5,965,500.24 679,463.13 70° 18' 40.014 N 148° 32' 44.322 W 12,412.10 92.70 330.17 8,777.14 5,408.48 2,777.72 5,965,527.69 679,445.18 70° 18' 40.288 N 148° 32' 44.826 W I 12,440.20 90.28 333.28 8,776.41 5,433.22 2,764.42 5,965,552.10 679,431.30 70° 18' 40.531 N 148° 32' 45.214 W 12,471.72 89.51 337.79 8,776.46 5,461.90 2,751.37 5,965,580.47 679,417.58 70° 18' 40.814 N 148° 32' 45.594 W 12,500.82 89.72 342.45 8,776.66 5,489.26 2,741.48 5,965,607.58 679,407.04 70° 18' 41.083 N 148° 32' 45.882 W 12,525.75 90.34 347.25 8,776.65 5,513.31 2,734.97 5,965,631.48 679,399.97 70° 18' 41.319 N 148° 32' 46.072 W 12,551.51 90.03 351.20 8,776.56 5,538.61 2,730.15 5,965,656.65 679,394.56 70° 18' 41.568 N 148° 32' 46.212 W 12,580.77 90.40 347.46 8,776.45 5,567.36 2,724.73 5,965,685.27 679,388.47 70° 18' 41.851 N 148° 32' 46.370 W 12,610.71 89.08 344.02 8,776.59 5,596.38 2,717.36 5,965,714.09 679,380.41 70°18' 42.136 N 148° 32' 46.585 W 12,640.48 89.88 339.15 8,776.86 5,624.61 2,707.96 5,965,742.10 679,370.35 70° 18' 42.414 N 148° 32' 46.859 W 12,670.82 89.72 334.09 8,776.97 5,652.45 2,695.92 5,965,769.65 679,357.67 70° 18' 42.688 N 148° 32' 47.210 W 12,700.66 87.91 330.27 8,777.58 5,678.83 2,682.00 5,965,795.69 679,343.13 70° 18' 42.947 N 148° 32' 47.615 W 12,730.91 88.37 325.61 8,778.57 5,704.45 2,665.96 5,965,820.92 679,326.49 70° 18' 43.199 N 148° 32' 48.083 W' 12,760.59 88.56 321.26 8,779.36 5,728.27 2,648.29 5,965,844.32 679,308.26 70° 18' 43.434 N 148° 32' 48.598 W 12,789.93 88.10 317.53 8,780.22 5,750.53 2,629.20 5,965,866.13 679,288.66 70°18' 43.653 N 148° 32' 49.155 W 6/28/2010 8:48:30AM Page 3 COMPASS 2003.16 Build 71 • • BAKIR ■ b HUGHES Survey Report - Geographic 0 1NTEQ Company: North America - ALASKA - BP Local Co - ordinate Reference: Well 15- 37_DIMS Project: Prudhoe Bay TVD Reference: 15 -37B ©59.50ft (Nabors 2ES) Site: PB DS 15 MD Reference: 15 -37B © 59.50ft (Nabors 2ES) Well: 15 _ DIMS North Reference: True Wellbore: 15 - 37C Survey Calculation Method: Minimum Curvature Design: 15 - 37C Database: EDM .16 - Anc Prod - WH24P ' Survey - - - - -- - - - -- Measured Vertical Map Map Depth Inclination Azimuth Depth +N /S +E/ -W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,830.60 89.14 313.73 8,781.20 5,779.59 2,600.78 5,965,894.50 679,259.56 70° 18' 43.939 N 148° 32' 49.984 W 12,857.24 89.42 317.83 8,781.53 5,798.68 2,582.20 5,965,913.15 679,240.55 70° 18' 44.126 N 148° 32' 50.525 W 12,888.50 89.33 322.79 8,781.87 5,822.72 2,562.25 5,965,936.72 679,220.03 70° 18' 44.363 N 148° 32' 51.107 W 12,915.99 89.11 325.02 8,782.25 5,844.93 2,546.06 5,965,958.54 679,203.32 70° 18' 44.581 N 148° 32' 51.579 W 12,945.53 86.96 321.49 8,783.26 5,868.58 2,528.40 5,965,981.77 679,185.11 70° 18' 44.814 N 148° 32' 52.094 W 12,971.01 85.08 318.91 8,785.03 5,888.11 2,512.13 5,966,000.90 679,168.39 70° 18' 45.006 N 148° 32' 52.568 W 13,000.41 85.76 314.72 8,787.38 5,909.47 2,492.08 5,966,021.79 679,147.84 70° 18' 45.216 N 148° 32' 53.153 W 13,030.36 83.98 311.74 8,790.06 5,929.90 2,470.35 5,966,041.70 679,125.64 70° 18' 45.417 N 148° 32' 53.787 W 1 13,060.42 82.49 308.34 8,793.60 5,949.10 2,447.50 5,966,060.36 679,102.35 70° 18' 45.606 N 148° 32' 54.453 W 13,090.92 83.26 304.37 8,797.38 5,967.04 2,423.13 5,966,077.71 679,077.57 70° 18' 45.783 N 148° 32' 55.164 W 13,119.71 83.01 301.46 8,800.82 5,982.57 2,399.14 5,966,092.67 679,053.22 70° 18' 45.936 N 148° 32' 55.864 W 13,150.73 84.16 298.20 8,804.29 5,997.90 2,372.40 5,966,107.37 679,026.13 70° 18' 46.086 N 148° 32' 56.643 W ' 13,180.05 84.37 294.44 8,807.22 6,010.83 2,346.26 5,966,119.68 678,999.69 70° 18' 46.214 N 148° 32' 57.406 W 13,209.43 85.02 291.59 8,809.94 6,022.27 2,319.33 5,966,130.48 678,972.50 70° 18' 46.326 N 148° 32' 58.191 W 13,240.36 83.60 287.86 8,813.01 6,032.66 2,290.37 5,966,140.18 678,943.30 70° 18' 46.428 N 148° 32' 59.036 W 13,270.68 84.25 284.59 8,816.22 6,041.08 2,261.42 5,966,147.92 678,914.17 70° 18' 46.511 N 148° 32' 59.880 W 13,300.90 84.04 281.54 8,819.30 6,047.87 2,232.14 5,966,154.03 678,884.74 70° 18' 46.578 N 148° 33' 0.734 W 1 13,330.47 85.20 277.51 8,822.07 6,052.74 2,203.11 5,966,158.21 678,855.61 70° 18' 46.626 N 148° 33' 1.581 W 13,360.81 86.62 273.54 8,824.24 6,055.66 2,173.00 5,966,160.41 678,825.44 70° 18' 46.655 N 148° 33' 2.460 W 13,390.65 88.10 270.29 8,825.61 6,056.65 2,143.21 5,966,160.71 678,795.64 70° 18' 46.665 N 148° 33' 3.329 W 13,421.40 87.82 266.25 8,826.71 6,055.72 2,112.50 5,966,159.06 678,764.96 70° 18' 46.656 N 148° 33' 4.224 W 13,450.20 90.55 262.94 8,827.12 6,053.01 2,083.84 5,966,155.67 678,736.37 70° 18' 46.629 N 148° 33' 5.061 W i 13,480.68 89.85 261.00 8,827.01 6,048.75 2,053.66 5,966,150.71 678,706.30 70° 18' 46.587 N 148° 33' 5.941 W ' 13,513.45 90.77 256.03 8,826.83 6,042.23 2,021.56 5,966,143.43 678,674.36 70° 18' 46.523 N 148° 33' 6.878 W 13,540.73 91.66 253.82 8,826.25 6,035.14 1,995.22 5,966,135.72 678,648.20 70° 18' 46.454 N 148° 33' 7.646 W 13,570.87 89.72 250.89 8,825.89 6,026.00 1,966.51 5,966,125.92 678,619.71 70° 18' 46.364 N 148° 33' 8.484 W 13,606.61 88.06 249.85 8,826.58 6,014.00 1,932.85 5,966,113.12 678,586.35 70° 18' 46.246 N 148° 33' 9.465 W 13,627.06 86.90 248.68 8,827.48 6,006.77 1,913.75 5,966,105.44 678,567.42 70° 18' 46.175 N 148° 33' 10.023 W 13,668.59 85.83 254.51 8,830.12 5,993.69 1,874.44 5,966,091.44 678,528.44 70° 18' 46.046 N 148° 33' 11.170 W 13,700.22 88.28 256.54 8,831.74 5,985.79 1,843.86 5,966,082.83 678,498.05 70° 18' 45.969 N 148° 33' 12.062 W 13,732.53 94.33 258.94 8,831.01 5,978.94 1,812.31 5,966,075.24 678,466.67 70° 18' 45.901 N 148° 33' 12.982 W 13,760.63 97.38 265.23 8,828.14 5,975.09 1,784.64 5,966,070.74 678,439.10 70° 18' 45.864 N 148° 33' 13.789 W 13,790.49 95.10 270.25 8,824.89 5,973.92 1,754.99 5,966,068.87 678,409.49 70° 18' 45.852 N 148° 33' 14.654 W 13,820.84 93.88 275.50 8,822.51 5,975.44 1,724.79 5,966,069.68 678,379.26 70° 18' 45.867 N 148° 33' 15.535 W 13,850.62 91.97 281.56 8,820.99 5,979.85 1,695.39 5,966,073.40 678,349.77 70° 18' 45.911 N 148° 33' 16.393 W 13,880.34 91.63 286.96 8,820.06 5,987.16 1,666.61 5,966,080.03 678,320.83 70° 18' 45.983 N 148° 33' 17.232 W 13,910.22 92.34 292.88 8,819.02 5,997.33 1,638.55 5,966,089.54 678,292.54 70° 18' 46.083 N 148° 33' 18.051 W 13,976.00 92.34 292.88 8,816.34 6,022.88 1,577.99 5,966,113.66 678,231.40 70°18' 46.334 N 148° 33' 19.817 W 1 TD 6/28/2010 8:48:30AM Page 4 COMPASS 2003.16 Build 71 TREE 4-1/16" MCEVOY • - 'WELLHEAD = FMC SAFETY NO. 4 CHROME T136. ACTUATOR = NA KB. ELEV = 65.7' BF. ELEV = 33.37' KOP = 3881' Max Angle = 97° © 13761' Datum MD = 11523 DRLG DRAFT 1 1 1 2191 H4-1/2" HES X NIP, D = 3.813" I Datum:11/D = 8800' SS GAS LIFT MANDRELS =. ST MD TVD DEV TYPE VLV LATCH PORT DATE 5 3470 3258 40 KBG-2 DOME BK 16 07/07/10 L 4 5509 4748 44 KBG-2 DMY BK 0 04/05/09 9-5/8" CSG, 47#, L-80, ID = 8.681" H 3876' I- i. 3 7003 5830 44 KBG-2 SO BK 20 07/07/10 4 4: 2 8286 6731 43 KBG-2 DMY BK 0 05/08/04 04 1 9360 7496 39 KBG-2 DMY _ BK 0 05/08/04 04 14 04 04 04 Min ID = 2.377" @ 11327' k 3-1/2" X 2-7/8" X0 •4 ::. CEMENT RAMP WINDOW 3881' - 3977' 04 04 1:,•> ■•••0* 9931' F-14-1/2" HES X NIP, ID = 3.813" 1 w..v., s••_:•_:•_:•_:•_:•_:•......_ CIBP H 409T I 4 F-I 7 X 4-1/2" BKR S3 PKR I 1 4 9975' 1-14-1/2" HES X NIP, ID = 3.813" I PC leak 6800' v\A, 7.1.7 V 9996' i__ 4-1/2" HES XN NIP, ID = 3.80" I MILLED () 1 10006 I-- 7" X 5" BKR ZXP LNR TOP I 7" CSG, 26#, L-80, .0383 bpf, ID = 6.276" HI 1037T ■ 7.1 PKR W/ TIEBACK SLV ■:■:■:■:■:■:■, 10009' H4-1/2" WLEG, 10=3.958" I 4 5" LNR, 15#, 13-CR, .0189 bpf, ID = 4.408" I 11056' ■■■■■■ ■ 10019' I--15" X 4-1/2" XO, ID = 3.960" A TSGR 10170' 14-1/2" TBG, 12.6#, 13-CR, .0152 bpf, ID = 3.958" H 10009' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" H 10160' 30* 10544' I-- 3-1/2" BKR DEPLOYMENT I * ll , SLV, ID = 3.00" PERFORATION SUMMARY TOC H 10 5 44 , , 1 I REF LOG: 3-112" LNR, 9.2#, 11327 . - 4-1/2" MILLOUT WINDOW (15-37C) 11350' ii: ANGLE AT TOP PERF: 93° @ 12230' L-80. STL , Note: Refer to Production DB for historical perf data 0088bpf, ID- 2.992" -'. , I 1 1,3 2 7' H XO 1 SIZE SPF INTERVAL Opn/Sqz DATE , - 2" 6 12230 - 12670 0 07/02/10 4-1/2" BKR PACKER -I 11350' 2" 6 13310 - 13690 0 07/02/10 WHIPSTOCK 2" 6 13840 - 13953 0 07/02/10 13937' H PBTD I 1 2-7/8" LNR, 6.16#, L-80, STL .0058 bpf, ID = 2.441" H 13976' I f`: 4-1/2" LNR, 12.6#, L-80, .0152 bpf, ID = 3.958" H 12466' DATE REV BY COMMENTS PRUDHOE BAY UNIT 06/28/94 ORIGINAL COMPLETION WELL: 15-370 08/01/00 CTD SIDETRACK (15-37A) PERMIT: 2100380 05/08/04 DAV/KAK RIG SIDETRACK (15-37B) API No: 50-029-22485-03 07/03/10 NORDIC2 CTD SIDETRACK (15-37C) SEC 22, T11N, R14E, 1445' FNL & 4419' FEL 07/09/10 SV DRLG HO CORRECTIONS 07/26/10 SWC/PJC GLV C/0 (07/07/10) - BP Exploration (Alaska) ka) • .. 7A11 [E ALAZIKKA SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMIIIISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 FAX (907) 276 -7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 15 -37C BP Exploration (Alaska), Inc. Permit No: 210 -038 Surface Location: 1446' FNL, 858' FWL, Sec. 22, Ti 1N, R14E, UM Bottomhole Location: 4553' FSL, 3047' FWL, Sec. 15, T11N, R14E, UM Dear Mr. McMullen: Enclosed is the approved application for permit to re -drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, i Daniel T. Seamount, Jr. Chair DATED this l day of April, 2010. cc: Department of Fish 85 Game, Habitat Section w/o encl. (via e -mail) Department of Environmental Conservation w/o encl. (via e -mail) STATE OF ALASKA IVED ALAS•IL AND GAS CONSERVATION COMMIIION REG • PERMIT TO DRILL 450 E_ 20 AAC 25.005 APR 0 2 2010 1a. Type of work: 1b. Proposed Well Class: :• Development Oil ❑ Service - Winj ❑ Single Zone 1c. Speci i we is r ❑ Drill ® Redrill ❑ Stratigraphic Test ❑ Development Gas ❑ Service - Supply ❑ Multiple Zone Itibi ydrates ❑ Re -Entry ❑ Exploratory ❑ Service - WAG ❑ Service - Disp AndiOa @hale Gas 2. Operator Name: 5. Bond: ® Blanket ❑ Single Well 11. Well Name and Number: BP Exploration (Alaska) Inc. Bond No. 6194193 PBU 15 - 37C 3. Address: 6. Proposed Depth: 12. Field / Pool(s): P.O. Box 196612, Anchorage, Alaska 99519 - 6612 MD 13890' TVD 8762'ss Prudhoe Bay Field / Prudhoe 4a. Location of Well (Govemmental Section): 7. Property Designation (Lease Number): Bay Oil Pool Surface: ADL 028306 1 1446' FNL, 858' FWL, SEC. 22, T11 N, R14E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 3429' FSL, 3047' FWL, SEC. 15, T11 N, R14E, UM June 20, 2010 Total Depth: 9. Acres in Property: 14. Distance to Nearest Property: 4553' FSL, 2527' FWL, SEC. 15, T11N, R14E, UM 2560 21,580' 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 59.5' feet 15. Distance to Nearest Well Open Surface: x- 676796 y- 5960056 Zone- ASP4 GL Elevation above MSL: 31' feet to Same Pool: 500' 16. Deviated Wells: Kickoff Depth: 11355 feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 96 degrees Downhole: 3250 ' Surface: 2376 • 18. Casing Program: Specifications Top - Setting Depth - Bottom Quantity of Cement, c.f. or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 4 - 1/8" 3 -1/2" x 3- 3/16" 9.3# / 6.2# L -80 sTL / rcii , 3390' 10500' 8510'ss 13890' 8762'ss 136 sx Class 'G' . x 2 -7/8" / 6.5# 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re -entry Operations) Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effective Depth MD (ft): Effective Depth TVD (ft): Junk (measured): 12471' 8780' 11860' 12421' 8784' None Casing Length Size Cement Volume MD TVD Conductor / Structural 110' 20" 260 sx Arcticset 110' 110' Surface 3876' 9 -5/8" 375 sx Class 'G'. 920 sx PF 'E' 3876' 3563' Intermediate 10133' 7" 369 sx Class 'G'. 140 sx Class 'G' 10160' 8242' Production _ Liner 2468' 4-1/2" 295 sx Class 'G' 9998' - 12466' 8084' - 8780' Perforation Depth MD (ft): 11000' - 10870' Perforation Depth TVD (ft): 8818' - 8799' 20. Attachments: ❑ Property Plat ® BOP Sketch ® Drilling Program ❑ Time vs Depth Plot ❑ Shallow Hazard Analysis ❑ Diverter Sketch ❑ Seabed Report ® Drilling Fluid Program ® 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the f•,' • •iftg is tru= -nd correct. Contact Eli Vazquez, 564 -5918 Printed Name Jo • y • I ° i Title E�cn ineering Team Leader A Prepared By Name/Number. Signature t Phone 564 -4711 Date Li 11) Terrie Hubble, 564 -4628 Commission Use Only Permit Drill API Number: Perrrlit, p`royp)�Da I See cover letter for Number: r: ' /pO ?J 50- 029 - 22485 -03 -00 LA �jt V other requirements Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalb methane, gas hydrates, or gas contained shales: Er Other: 3 56 0 larz- �b P 13-5 -1'- Samples Req'd: ❑ es DiNo Mud Log Req'd: ❑ Yes No pS L n ?" 6 914: ' % ) H Measures: Yes ❑ No Directional Survey Req'd: E Yes ❑ No i Z.500 / /GS 0 11 4)//5i/APPROVED BY THE COMMISSION // Da , COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from . - date of approval (20 AAC 25.005(g)) Submit In Duplicate :-" . , .uiN AL .=6* • • To: Alaska Oil & Gas Conservation Commission From: Eli Vazquez bp CTD Engineer Date: March 30 2010 Re: 15 -37C producer PTD request Approval is requested for a permit to drill a CTD sidetrack from well 15 -37B. Well 15 -37B was a May 2004 rig sidetrack in the north- eastern part of DS -15 and was completed with 1,070' of Z1 A/1 B perforations. The rig sidetrack also fixed the PC leak at 6800' MD and run new 4 -1/2" 13 -Cr tubing after abandoning the parent well that had sustained formation damage after being dump flooded with cretaceous water. The well came on at very strong rates and solution GOR. It produced fulltime for the next two years. The well hit MGOR in spring 2008. In hopes of improving productivity, a CIBP was set at 11,860' MD and then 25' of Z1 B perfs were shot in the heel on March 10, 2009. The initial rates (post GSO /add perforations) were encouraging. However, the well went to producing at high GOR within a month. There are currently no viable well work options left on this well and the on -time has now dropped to below 20 %. The most recent test on August 10, 2009 had the well producing at poor levels with high GOR and with no ability to recharge or cycle. Well 15 -37B is in sound mechanical condition. The well passed the MITIA to 3000 psi on April 5 2009 and failed the MITOA to 2000 psi on June 5 2009. The OA pressure dropped from 2000 psi to 680 psi after 15 , t minutes (both the Tubing and IA pressures stayed constant) indicating that the 9 -5/8" shoe may have been blown off. Bubbling was also noticed in the next door empty well slot while performing the MITOA. However, the LEL readings showed no presence of hydrocarbons. The well passed the PPPOT -T to 5000 psi on June 18, 2009. A coil tubing sidetrack will enable this 4 monobore to be more effectively utilized and bring value to the field. The sidetrack, 15 -37C, is scheduled to be drilled by Nordic 2 starting on June 20 2010. This horizontal lateral will target Ivishak Zone 1A. A CIBP will be set Pre Rig at 11,350' MD to abandon the perforations below this depth. Next, the injectivity of the perforations above will be assessed to determine if a plug or squeeze work is desired. The "C" sidetrack lateral will exit the parent well at 11,335' MD in the Ivishak Zone 2 via a 4 monobore whipstock and a -2,555' lateral will be drilled to a TD of 13,890' MD. The sidetrack will be completed with a solid, cemented and perforated 3 x 3- 3/16" x 2 -7/8" solid L -80 tapered liner. The following describes work planned. A schematic diagram of the proposed sidetrack is attached for reference. 1 Co r 4r P'lc'oiee 1370 ''-'/f ti ;' 1i y wr'y.e CTD Sidetrack Summary c4 Ate .5cint/ ns ( c.4*.9 t/r rat. fflO c? re, c � 540 /(d , °an /t'- e fe c c' - y ,n y4,1 CO / �''*, 0)4 Pre-CT Rig Work: The pre CTD work is planned to begin June 1 2010. The e,/, 1. D MIT -IA to 3000 psi, MIT- OA to 2000 psi. W Check tubing hanger LDS. ,� s/(Q 3. W PPOT -T to 5000 psi, PPOT -IA to 3500 psi. 4. V PT tree (MV,SV,WV) 5. C Mill XN Nipple at 9,996' MD to 3.80" ID. 6. C Drift for CIBP and 4 Mono -Bore whipstock. 7. C Set CIBP at -- 11,350' MD. 8. C Swap well over to 8.5 ppg Flo Pro and assess injectivity to determine if cement plug or squeeze is desired. 9. C Freeze protect well and thoroughly wash the tree. 1 n 10. D Bleed wellhead pressures down to zero. /" Jk 11. D Bleed production flow lines and GL lines down to zero and blind flange. 12. 0 Remove wellhouse, level pad. '4 Rig Sidetrack Operations: (Scheduled to begin on June 20 2010 using Nordic Rig 2) 1. MIRU Nordic Rig 2 2. NU 7- 1/16" CT Drilling BOPE and test 3. Drift for 4 Mono -Bore whipstock. 4. Set 4 Mono -Bore whipstock high side at 11,335' MD. 5. Mill 3.8" dual string window in 4 12.6# L -80 production liner from mechanical whipstock. 6. Drill lateral section with 4 -1/8" bicenter bit to 13,890' MD. V PiD • • 7. Run 31/2" x 3- 3/16" x 2 -7/8" L -80 tapered liner string. Place liner top at 10,500' MD. , 8. Cement L -80 tapered liner. Expect -.28 bbl of 15.8 ppg cement. 9. Make a cleanout run with mill and motor. 10. Make a MCNL run. 11. Test Liner lap to 2000 psi. 12. Perforate well. 13. Run Liner Top Packer, if needed. 14. Freeze protect well to 2000' TVD. 15. Set BPV. ND 7- 1/16" BOPE stack. Freeze protect tree and PT tree cap to 3500 psi. 16. RDMO Nordic 2. Post -Rig Work: 1. Re- install wellhouse and FL's. 2. Pull BPV. 3. RU test separator. Mud Program: • Well kill: 8.6 ppg seawater / brine. • Milling /drilling: 8.6 ppg Geo -VIS or biozan for milling, new 8.6 ppg Geo -VIS for drilling. Disposal: • All Class II drilling and completion fluids and all other Class II wastes will go to Grind & Inject at DS 4. • All Class I wastes will go to Pad 3 for disposal. Hole sizes: 4.125" bi- center hole: 11,335' MD — 13,890' MD Casing Program: • 3 -1/2 ", L -80 9.3# STL 10,500' MD — 11,335' MD. • 3- 3/16 ",L -80 6.2# TCII 11,335' MD- 11,900' MD. • 2 -7/8 ", L -80 6.5# STL 11,900' MD — 13,890' MD. • A minimum of 28.0 bbl 15.8 ppg cement will be used for liner cementing (assuming 4.125" bit size and TD at 13,890', with 20% excess in the open hole interval). • TOC planned at 10,500' MD (top of 31/2" liner). • If liner lap fails, a liner top packer will be run. Well Control: • BOP diagram is attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3500 psi. • The annular preventer will be tested to 250 psi and 2500 psi. Directional • See attached directional plan. Maximum planned hole angle is 96 deg at 11,379' MD. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property — 21,580 ft. • Distance to nearest well within pool — 500 ft (well 15 -16A). Anti - Collision • 15 -16 178' (ctr — ctr distance) Status: Plugged and Abandoned • 15 -16A 178' (ctr — ctr distance) Status: Plugged and Abandoned • 15 -37A 61' (ctr — ctr distance) Status: Plugged and Abandoned • 15- 37APB1 105' (ctr — ctr distance) Status: Plugged and Abandoned Logging • MWD directional, Gamma Ray and Resistivity logs will be run over all of the open hole section • A cased hole GR /CCL/CNL log will be run. • Hazards • DS 15 is not an H drill site. H levels are typically less than 20 ppm. • The maximum recorded H level on Drill Site 15 was 40 ppm on well 15 -20 (07/01/2006). • The maximum recorded H level on 15 -36B (closest SHL Well to 15 -37C) was 20 ppm (06/28/2007). Last H recording on 15 -36B was 14 ppm (06/19/2009). • The proposed 15 -37C sidetrack is in a medium risk province of the field, according to the WURD lost circulation study. The well plan has one mapped fault crossing and it will be crossed in Zone 1 to minimize the risk of lost circulation. In addition, the plan is to drill in a narrow E -W graben that intersects the Midfield Graben to the West so the risk that there could be other sub - seismic faults present is recognized. The closest lost circulation event into Zone 1 was 500 feet away in 15 -16 and only 25 barrels were lost into Zone 1. Due to the fault crossing and the fact that we are drilling in a narrow graben, 15- 37C has been assigned a risk level of medium for loss circulation while drilling. Reservoir Pressure • The reservoir pressure is estimated to be 3,250 psi at 8,743 TVDss (7.2 ppg equivalent). • Max. expected surface pressure with gas (0.10 psi /ft) to surface is 2,376 psi. Eli Vazquez CTD Engineer CC: Well File Sondra Stewman/Terrie Hubble TREE= 4- 1/16" MCEVOY WELLHEAD = FMC 0 SAFETOTES: 5" CHROME LNR; 4 - 1/2" CHROME - ACTUATOR= NA 15 -3 7 B TBG. KB. ELEV = 65.7' BF. ELEV = 33.37' KOP = 3881' Max Angle = 95 @ 12471' Datum MD = 11523' 1 1 I 2191' H4 -1/2" HES X NIP, ID = 3.813" I Datum TV D = 8800' SS GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 5 3470 3263 40 KBG -2 DMY BK 0 04/05/09 9 -5/8" CSG, 47 #, L -80, ID = 8.681" H $876' 4 5509 4759 44 KBG-2 DMY BK 0 04/05/09 I ■• • 3 7003 5844 44 KBG -2 DMY BK 0 05/08/04 • j� • 2 8286 6749 43 KBG -2 DMY BK 0 05/08/04 ►j • 1 9360 7515 39 KBG -2 DMY BK 0 05/08/04 ►4 • ■i ►i ►i Minimum ID = 3.725" @ 9996' • 4-1/2" HES XN NIPPLE • . ■i . CEMENT RAMP WINDOW 3881' - 3977' 4 ■••••• •••••• ■•••••• . •.._ I C IBP I-I 4097' NA N I 9931' H4-1/2" HES X NIP, ID = 3.813" I 7" CSG, 26 #, L -80, .0383 bpf, ID = 6.276" H 10372' • Z /�/ 9952' H7 X 4 -1/2" BKR S3 PKR I ••••••••••• • 1 1 9975' H4 -1/2" HES X NIP, ID = 3.813" I 15" LNR, 15 #, 13 -C R, .0189 bpf, ID = 4.408" I-I 11056' • ■• • ! . 1 9996' 4 -1/2" HES XN NIP, ID = 3.725" 14-1/2" TBG, 12.6 #, 13 -CR, .0152 bpf, ID = 3.958" I-I 10009' 10009' H4 -1/2" WLEG, 10= 3.958" I 2 c 10006' H 7" X 5" BKR ZXP LNR TOP PKR W/ TIEBACK SLV 17" LNR, 26 #, L -80, .0383 bpf, ID = 6.276" I-I 10160' I 10019' H 5" X 4-1/2" XO, ID = 3.960" I PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: 89° @ 11000' 1 11860' J-14-1/2" WFD CIBP (03/10/09)1 Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn /Sqz DATE 2 -7/8" 4 11000 - 11320 O 05/05/04 2 -7/8" 4 11490 - 11840 0 05/05/04 I 2 -7/8" 6 10845 - 10870 O 03/10/09 I PBTDI —I 12378' I • • 2 -7/8" 4 11880 - 12040 C 05/05/04 •••••• 11 ■ 2 -7/8" 4 12080 - 12172 C 05/05/04 ∎••••• 2 -7/8" 6 12172 - 12320 C 05/05/04 14-1/2" LNR, 12.6 #, L -80, .0152 bpf, ID = 3.958" H 12466' I DATE REV BY COMMENTS PRUDHOE BAY UNIT 06/28/94 ORIGINAL COMPLETION WELL: 15 -37B 08/01/00 CTD SIDETRACK (15 -37A) PERMFr: 2040190 05/08/04 DAV /KAK RIG SIDETRACK (15-37B) API No: 50- 029 - 22485 -02 05/14/04 KSB /KAK GLV C/O SEC 22, T11 N, R14E, 1445' FNL & 4419' FEL 03/18/09 RMWSV SET CIBP/ADPERF (03/10/09) 06/03/09 ? ? ?/TLH GLV C/0 (04/05/09) BP Exploration (Alaska) TREE _ s 4 -1/16" MCEVOY 15 3 7 C STES: 4 -1/2" CHROME TBG. • WELLHEAD = FMC R ACTUATO= NA Proposed CTD Sidetrack ACTUATOR KB. ELEV = 65.7' BF. ELEV = 33.37' KOP= 3881' Max Angle = 95 @ 12471' Datum MD = 11523' 1 1 I 2191' H4 -1/2" HES X NIP, ID = 3.813" I Datum TV D = 8800' SS GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 5 3470 3263 40 KBG -2 DMY BK 0 04/05/09 9 -5/8" CSG, 47 #, L -80, ID = 8,681" H 3$76' HA , 4 5509 4759 44 KBG -2 DMY BK 0 04/05/09 ► � ∎� 3 7003 5844 44 KBG -2 DMY BK 0 05/08/04 , � 2 8286 6749 43 KBG -2 DMY BK 0 05/08/04 ' j 1 9360 7515 39 KBG -2 DMY BK 0 05/08/04 . , Minimum ID = 2.3" @ 10500' TOL 3 -1/2" ∎ � CEMENT RAMP WINDOW 3881' - 3977' ► ►������ 1-14-1/2" ♦ � � � ♦ 9931' HES X NIP, ID = 3.813" I CIBP H 4097' 9952' I-17 X 4 -1/2" BKR S3 PKR I PC leak 6800' vAN _ g ' ,_, 9975' H4 -1/2" HES X NIP, ID = 3.813" I _ �� II 0 9996' H4-1/2" HES XN NIP, ID milled to = 3.80" 1 1 10006' I- 7" X 5" BKR ZXP LNR TOP 7" CSG, 26 #, L -80, .0383 bpf, ID = 6.276" H 10372' I ■ i 0. PKR W/ TIEBACK SLV ►•- - - 4P - - , I 10009' 1-14 -1/2" WLEG, ID= 3.958" I k*- - *- - A 10019' 5" X 4-1/2" XO, ID = 3.960" I5" LNR, 15 #, 13 -CR, .0189 bpf, ID = 4.408" I—I 11056 �I A TSGR 10170' 4 -1/2" TBG, 12.6 #, 13 -CR, .0152 bpf, ID= 3.958" I—I 10009' 17" LNR, 26 #, L -80, .0383 bpf, ID = 6.276" H 10160' 1 0 , I TOL, TOC H 10500' K PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: 89° @ 11000' Note: Refer to Production DB for historical perf data 1 11335 H XO SIZE SPF INTERVAL Opn /Sqz DATE 4 -1/2" BKR 2 -7/8" 6 10845 10870 0 03/10/09 MONOBORE 11335' 1 11900 I--1 XO I 2 -7/8" 4 11000 - 11320 0 05/05/04 WHIPSTOCK 9� 2 -7/8" 4 11490 - 11840 0 05/05/04 — ' I ? H I 2 -7/8" 4 11880 - 12040 C 05/05/04 �I ___ - 2 -7/8" 4 12080 - 12172 C 05/05/04 2 -7/8" 6 12172 - 12320 C 05/05/04 3 -1/2' x 3 -3/16" X 2 -718" liner --I 13890' I � 1186O I--I4 - 11 2 ' WFD CIBP (03110/09)1 C 4-1/2" LNR, 12.6 #, L -80, .0152 bpf, ID = 3.958" I—I 12466' 1 I.� B DATE REV BY COMMENTS PRUDHOE BAY UNIT 06/28/94 ORIGINAL COM PLETION 02/18/10 MSE PROPOSED CTD SIDETRACK WELL: 15 -37C 08/01/00 CTD SIDETRACK (15 -37A) 02/30/10 EV REVISED CTD SIDETRACK PERMIT: 05/08/04 DAV /KAK RIG SIDETRACK (15 -37B) API No: 50- 029 - 22485 -0; 05/14/04 KSB /KAK GLV C/O SEC 22, T11 N, R14E, 1445' FNL & 4419' FEL 03/18/09 RMH/SV SET CIBP /ADPERF (03/10/09) 06/03/09 ? ? ? /TLH GLV C/O (04/05/09) BP Exploration (Alaska) 0 Baker Hughes INTEQ BAK ry E �IR ■ bp Baker Hughes INTEQ Planning Report MI)/GM INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 15 -37 Project: Prudhoe Bay TVD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Site: PB DS 15 MD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Well: 15-37 North Reference: True Wellbore: Plan 3, 15 -37C Survey Calculation Method: Minimum Curvature Design: Plan 3 Database: EDM 2003.16.1 Single User Db Survey Tool Program Date 3/29/2010 From To 1 (ft) (ft) Survey ( Wellbore) Tool Name Description i 93.76 3,868.76 15 -37 Srvy 5 GYD CT CMS (15 -37) GYD -CT -CMS Gyrodata cont.casing m/s 0 3,868.76 3,875.00 15-37 Srvy 1 MWD (15 -37) MWD MWD - Standard 3,900.00 8,596.00 15 -37B Srvy 5 -2 GYD CT CMS (15 -37B) GYD -CT -CMS Gyrodata cont.casing m/s 8,596.00 11,330.77 15 -37B Srvy 4 MWD +IFR +MS (15 -37B) MWD +IFR +MS MWD + IFR + Multi Station 11,330.77 13,890.00 Plan 3 (Plan 3, 15 -37C) MWD MWD - Standard 1 Planned Survey MD Inc Azi TVDSS N/S E1W Northing Easting DLeg V. Sec TFace (ft) ( °) (°) (ft) (ft) (ft) (ft) (ft) (°/100ft) (ft) (°) 11,330.77 90.25 109.06 8,735.47 4,752.94 2,702.21 5,964,870.59 679,385.11 0.00 2,343.46 0.00 TIP 11,335.00 90.41 109.22 8,735.44 4,751.55 2,706.20 5,964,869.30 679,389.13 5.35 2,340.03 45.00 KOP 11,355.00 91.97 108.32 8,735.03 4,745.12 2,725.14 5,964,863.31 679,408.21 9.00 2,323.90 -30.00 End of 9 Deg /100' DLS 11,379.00 96.12 105.91 8,733.34 4,738.07 2,748.01 5,964,856.81 679,431.24 20.00 2,305.01 -30.00 4 11,400.00 96.11 101.68 8,731.10 4,733.09 2,768.28 5,964,852.31 679,451.62 20.00 2,289.30 -90.00 11,403.00 96.10 101.08 8,730.78 4,732.51 2,771.21 5,964,851.79 679,454.56 20.00 2,287.14 -90.45 5 11,500.00 92.46 81.97 8,723.47 4,729.98 2,867.43 5,964,851.53 679,550.82 20.00 2,229.88 - 100.00 11,598.16 88.50 62.73 8,722.64 4,759.60 2,960.51 5,964,883.33 679,643.17 20.00 2,200.76 - 101.44 6 11,600.00 88.50 62.37 8,722.69 4,760.45 2,962.14 5,964,884.21 679,644.78 20.00 2,200.51 -89.30 11,700.00 88.84 42.36 8,725.04 4,821.19 3,040.91 5,964,946.78 679,722.09 20.00 2,205.09 -89.29 11,800.00 89.31 22.37 8,726.67 4,905.21 3,094.17 5,965,032.03 679,773.35 20.00 2,243.37 -88.82 11,898.16 89.86 2.74 8,727.39 5,000.56 3,115.40 5,965,127.84 679,792.33 20.00 2,309.30 -88.50 7 L 11,900.00 89.86 2.37 8,727.39 5,002.39 3,115.48 5,965,129.68 679,792.37 20.00 2,310.75 -89.00 3/29/2010 1 :57:18PM Page 3 COMPASS 2003.16 Build 71 Baker Hughes INTEQ BA VR ■ 0 bp Baker Hughes INTEQ Planning Report HUGHES ' INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 15 -37 Project: Prudhoe Bay TVD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Site: PB DS 15 MD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Well: 15 -37 North Reference: True Wellbore: Plan 3, 15 -37C Survey Calculation Method: Minimum Curvature Design: Plan 3 Database: EDM 2003.16.1 Single User Db Planned Survey MD Inc Azi TVDSS N/S EIW Northing Easting DLeg V. Sec TFace (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) ( ° I100ft) (ft) (°) 11,998.16 90.21 342.74 8,727.33 5,099.25 3,102.83 5,965,226.21 679,777.45 20.00 2,397.35 -89.00 a End of 20 Deg /100' DLS 12,000.00 90.21 342.52 8,727.33 5,101.01 3,102.28 5,965,227.95 679,776.86 12.00 2,399.10 -89.00 12,100.00 90.41 330.53 8,726.78 5,192.56 3,062.52 5,965,318.54 679,734.96 12.00 2,496.91 -89.00 12,198.16 90.60 318.75 8,725.91 5,272.47 3,005.81 5,965,397.08 679,676.39 12.00 2,594.89 -89.07 9 12,200.00 90.54 318.96 8,725.89 5,273.85 3,004.60 5,965,398.44 679,675.14 12.00 2,596.72 105.00 12,300.00 87.44 330.56 8,727.66 5,355.36 2,947.01 5,965,478.56 679,615.65 12.00 2,696.52 105.00 12,318.16 86.89 332.67 8,728.56 5,371.32 2,938.39 5,965,494.31 679,606.66 12.00 2,714.54 104.80 I 10 12,400.00 88.63 322.99 8,731.77 5,440.45 2,894.90 5,965,562.40 679,561.56 12.00 2,796.11 -80.00 12,500.00 90.80 311.19 8,732.26 5,513.56 2,826.94 5,965,633.89 679,491.91 12.00 2,894.98 -79.62 12,518.16 91.20 309.05 8,731.95 5,525.26 2,813.06 5,965,645.26 679,477.75 12.00 2,912.53 -79.56 1 11 12,600.00 91.18 318.87 8,730.24 5,581.99 2,754.23 5,965,700.58 679,417.61 12.00 2,992.74 90.00 12,700.00 91.11 330.87 8,728.23 5,663.61 2,696.81 5,965,780.83 679,358.29 12.00 3,092.53 90.20 12,718.16 91.10 333.05 8,727.88 5,679.64 2,688.28 5,965,796.65 679,349.38 12.00 3,110.56 90.45 12 12,800.00 89.38 323.38 8,727.54 5,749.12 2,645.23 5,965,865.09 679,304.71 12.00 3,192.16 - 100.001 12,900.00 87.32 311.56 8,730.43 5,822.65 2,577.79 5,965,937.01 679,235.56 12.00 3,291.08 - 100.04 12,968.16 85.97 303.47 8,734.43 5,864.06 2,523.86 5,965,977.13 679,180.68 12.00 3,355.93 -99.70 13 13,000.00 85.19 307.23 8,736.88 5,882.42 2,497.98 5,965,994.88 679,154.38 12.00 3,385.82 102.00 13,048.16 84.04 312.91 8,741.41 5,913.27 2,461.30 5,966,024.86 679,116.98 12.00 3,432.13 101.71 14 13,100.00 84.07 306.66 8,746.78 5,946.25 2,421.70 5,966,056.89 679,076.62 12.00 3,481.85 -90.00 13,200.00 84.34 294.60 8,756.91 5,996.84 2,336.25 5,966,105.46 678,990.01 12.00 3,572.31 -89.35 3/29/2010 1 :57:18PM Page 4 COMPASS 2003.16 Build 71 0 Baker Hughes INTEQ BAKER Milli sA by Baker Hughes INTEQ Planning Report HUGNEI ' , INTEQ Company: North America - ALASKA - BP Local Co-ordinate Reference: Well 15 -37 Project: Prudhoe Bay TVD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Site: PB DS 15 MD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Well: 15-37 North Reference: True Wellbore: Plan 3, 15 -37C Survey Calculation Method: Minimum Curvature Design: Plan 3 Database: EDM 2003.16.1 Single User Db Planned Survey MD Inc Azi TVDSS N/S EIW Northing Easting DLeg V. Sec TFace (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) ( °M OOft) (ft) (1 13,298.16 84.84 282.78 8,766.20 6,028.10 2,243.85 5,966,134.53 678,896.90 12.00 3,650.91 -88.13 0 15 13,300.00 84.92 282.57 8,766.36 6,028.50 2,242.06 5,966,134.89 678,895.11 12.00 3,652.27 -68.37 13,400.00 89.42 271.43 8,771.32 6,040.63 2,143.11 5,966,144.69 678,795.91 12.00 3,718.96 -68.35 13,412.88 90.00 270.00 8,771.38 6,040.80 2,130.23 5,966,144.55 678,783.03 12.00 3,726.48 -67.80 16 13,500.00 91.72 259.69 8,770.08 6,032.98 2,043.59 5,966,134.70 678,696.60 12.00 3,769.77 -80.50 13,512.88 91.97 258.16 8,769.66 6,030.50 2,030.96 5,966,131.93 678,684.03 12.00 3,774.99 -80.65 17 13,600.00 91.39 268.60 8,767.10 6,020.48 1,944.57 5,966,119.88 678,597.92 12.00 3,816.33 93.00 13,662.88 90.94 276.14 8,765.82 6,023.08 1,881.81 5,966,121.00 678,535.11 12.00 3,854.46 93.31 18 13,700.00 90.94 271.68 8,765.21 6,025.61 1,844.79 5,966,122.66 678,498.04 12.00 3,877.76 -90.00 13,800.00 90.91 259.68 8,763.59 6,018.09 1,745.27 5,966,112.80 678,398.73 12.00 3,928.69 -90.07 13,837.88 90.88 255.13 8,763.00 6,009.84 1,708.31 5,966,103.68 678,361.98 12.00 3,943.13 -90.27 19 13,890.00 90.88 261.39 8,762.20 5,999.24 1,657.31 5,966,091.89 678,311.25 12.00 3,963.70 90.00 2 718" 3/29/2010 1:57:18PM Page 5 COMPASS 2003.16 Build 71 Project: Prudhoe Bay • ArimM.:ThueNo9 WELLBORE DETAILS: Plan 3, 15-37C REFERENCE INFORMATION Magnetic Nedh:22.31• Fait • Site: PBDS15 Magnetic Field ParentWellbore: 15-37B Coardirete(NIE)Reference. Wen 1537,TrueNoM BAKER Well 15 -37 Strength. 57687.63a Vertiral(TVD)Reference, Mean Sea Level We II bore: Plan a, 15 -37C DipAgle:8094° Tie on MD: 11330.77 Section(VS)Reference. Sbt- (0.006.0.00E) HUGHES Plan: Plan 3 (15 -37 /Plan 3, 15 -37C) Date 911/2016 Measured Depth Reference. 15-3713@59.506 (Nabors2ES) • Model:eGGM20da CaWfatbnMetlod: Wino Curvature INTEQ x,11 WELL DETAILS' 15 -37 Ground Level: 31.00 6450 - *N / -S *E / -W Northing Easting Latttude Longitude Slot 0.00 0.00 596005571 67679552 70°17'47.101 N 148° 34' 5.849 W 15 -37 6300 6151 • SECTION DETAILS ANNOTATIONS 37C ��� Sec MD Inc Azi ssTVD +NI-S .E/ -W DLeg TFace VSec Target Annotation 1i ir-� , ■ 1 11330.77 90.25 109.06 8735.47 4752.94 2702.21 0.00 0.00 2343.46 TIP 6000 ' 2 11335.00 90.41 109.22 8735.44 4751.55 2706.20 5.35 45.00 2340.03 KOP ■�, 3 11355.00 91.97 108.32 8735.03 4745.12 2725.14 9.00 330.00 2323.90 End of 9 Deg/100' DLS S58.5# �Ii� �� , r 4 11379.00 96.12 105.91 8733.34 4738.07 2748.01 20.00 330.00 2305.01 4 a 00 ��a�� 5 11403.00 96.10 101.08 8730.78 4732.51 2771.21 20.00 270.00 2287.14 5 p 5700 � ■ � 6 11598.16 88.50 62.73 8722.64 4759.60 2960.51 20.00 260.00 2200.76 6 V 7 11898.16 89.86 2.74 8727.39 5000.56 3115.40 20.00 270.70 2309.30 7 ^" • 8 11998.16 90.21 342.74 8727.33 5099.25 3102.83 20.00 271.00 2397.35 End of 20 Deg /100' DLS 5550. 9 12198.16 90.60 318.75 8725.91 5272.47 3005.81 12.00 271.00 2594.89 9 " , 15 -37C t 10 12316.16 86.89 332.67 8728.56 5371,32 2938.39 12.00 105.00 2714.54 0 1 5 4 11 ' , - \ , 11 12518.16 9120 309.05 8731.95 5525.26 2813.06 12.00 280.00 2912.53 11 ■ , �`. 12 12718.16 91.10 333.05 8727.88 5679,64 2688.28 12.00 90.00 3110.56 12 525I 13 12968.16 85.97 303.47 8734.43 5864.06 252386 12.00 260.00 3355.93 13 14 13048.16 84.04 312.91 8741.41 5913.27 2461.30 12.00 102.00 3432.13 14 ,, , ', , 1 ��� 15 13298.16 84.84 282.78 8766.20 6028.10 2243.85 12.00 270.00 3650.91 15 0 51 if 16 13412.88 90.00 270.00 8771.38 6040.80 2130.23 12.00 -68.37 3726.48 16 12 49 1 I■ __ 1 • �' ��_ � f 20 D F/100' DLS 17 13512.88 91.97 258.16 8769.66 6030.50 2030.96 12.00 279.50 3774.99 17 18 13662.88 90.94 276.14 8765.82 6023.08 1881.81 12.00 93.00 3854.46 18 19 13837.88 90.88 255.13 8763.00 6009.84 1708.31 12.00 270.00 3943.13 19 ■ ■ I , J-N i i 1: 37/15.37A 20 13890.00 90.88 261.39 8762.20 5999.24 1657.31 12.00 90.00 3963.70 TD at 13890.00 ; • ■�,I ■_ l ® - 4 ®, ,_ 15 37/15376 451 , E.. of9 a g/111'DLS 1050 1200 1350 1500 1650 1800 1950 2100 2250 2400 2550 2700 2850 3000 3150 3300 3450 3600 3750 West( -) /East( +) (150 ft/in) 8461 ■ 1111 ■ ■I� ■■ 1■ 1111■■ ■ 1111■ N 8521 ■ ■ % ■dia '■ N R6 • -37,7 : ' ► N /1111 1111 �■ ■ 8701 ■ . ■ ■ ■� „ , r 1 s. ; ■ s.i■ ■ ■ i _ .a� 1 II L 1 ii11 Iim . 876 i no A 6821 7/ � ■ ■■ 608 1111 ■ 1111■ ■ 1111 H 8941 ■ ■11 ■■ ■1111■ ■11 ■ i ■ 1111 1111 1111■ '1,, 11111 ■■ ■ 1111■■■ ■ ■ 1111 9� 11111 ■ n■ ■ ■ Mean Sea E11111111111111111111111111111111111111111111111111111.111.11111111111111111111111111mum 9121 2040 2100 2160 2220 2280 2340 2400 2460 2520 2580 2640 2700 2760 2820 2880 2940 3000 3060 3120 3180 3240 3300 3360 3420 3480 3540 3600 3660 3720 3780 3840 3900 3960 4020 4080 4140 4200 4260 4320 Vertical Section at 325.00° (60 ft/in) • VGtII 0 BPPASSPORT • s h $ Travelling Cylinder Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 15 -37 Project: Prudhoe Bay TVD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Reference Site: PB DS 15 MD Reference: 15 -37B @ 59.50ft (Nabors 2ES) Site Error: 0.00ft North Reference: True Reference Well: 15 -37 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan 3, 15 -37C Database: EDM .16 - Anc Prod - WH24P Reference Design: Plan 3 Offset TVD Reference: Offset Datum Summary I Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well - Welibore - Design (ft) (ft) (ft) (ft) PB DS 15 15 -08 - 15 -08 - 15 -08 11,450.00 11,345.00 1,296.70 379.63 924.41 Pass - Major Risk 15 -16 - 15 -16 - 15 -16 12,184.80 11,450.00 177.79 119.27 66.86 Pass - Major Risk 15 -16 - 15 -16A - 15 -16A 12,184.80 11,450.00 177.79 119.27 66.86 Pass - Major Risk 15 -16 - Plan 15 -16B - Plan #5 15 -16B 12,375.00 12,300.00 1,488.49 120.77 1,373.84 Pass - Major Risk 15 -16 - Plan 15- 16BPB1 - Plan #4 15- 16BPB1 12,375.00 12,300.00 1,488.49 120.76 1,373.84 Pass - Major Risk 15 -30 - 15 -30 - 15 -30 11,825.00 10,700.00 1,029.26 320.70 732.28 Pass - Major Risk 15 -30 - 15 -30A - 15 -30A 11,825.00 10,700.00 1,029.26 322.29 731.25 Pass - Major Risk 15 -30 - 15- 30APB1 - 15- 30APB1 11,825.00 10,700.00 1,029.26 321.72 731.70 Pass - Major Risk 15 -30 - Plan 2, 15 -30B - Plan 2 11,825.00 10,700.00 1,029.26 325.94 729.18 Pass - Major Risk 15 -34 -15 -34 - 15 -34 Out of range 15 -34 - 15 -34A - 15 -34A Out of range 15 -35 - 15 -35 - 15 -35 11,600.00 10,600.00 1,195.61 200.21 997.10 Pass - Major Risk 15 -36 - 15 -36 - 15 -36 12,800.00 11,450.00 468.98 162.48 313.13 Pass - Major Risk 15 -36 - 15 -36A - 15 -36A 13,468.29 13,010.00 423.85 171.96 254.59 Pass - Major Risk 15 -36 - 15- 36APB1 - 15- 36APB1 13,425.00 13,036.00 339.43 164.31 178.73 Pass - Major Risk 15 -36 - 15 -36B - 15 -36B 12,750.00 11,350.00 399.65 171.41 240.47 Pass - Major Risk 15 -36 - 15- 36BPB1 - 15- 36BPB1 12,750.00 11,350.00 399.65 171.45 240.42 Pass - Major Risk 15 -36 - 15- 36BPB2 - 15- 36BPB2 12,750.00 11,350.00 399.65 171.41 240.47 Pass - Major Risk 15 -37 - 15 -37 - 15 -37 13,615.32 11,056.00 592.14 138.28 453.92 Pass - Major Risk 15 -37 - 15 -37A - 15 -37A 11,783.98 12,200.00 61.14 224.94 - 148.43 FAIL - Major Risk 15 -37 - 15- 37APB1 - 15- 37APB1 11,781.24 12,023.00 104.76 239.42 - 115.62 FAIL - Major Risk 15 -37 - 15 -37B - 15 -37B 11,350.00 11,350.00 0.18 0.96 -0.73 FAIL - Major Risk 15 -38 - 15 -38 - 15 -38 Out of range 15 -38 - 15 -38A - 15 -38A Out of range 15 -38 - 15 -38A - Plan #3 Out of range 15 -38 - 15- 38APB1 - 15- 38APB1 Out of range 15 -39 - 15 -39A - 15 -39A Out of range 15 -39 - 15 -39A - 15 -39A wp 7.0 Out of range 15-40 - 15-40 - 15-40 Out of range 15-40A - 15 -40A - 15-40A Out of range 15- 40APB1 - 15- 40APB1 - 15- 40APB1 Out of range 15 -40PB1 - 15 -4OPB1 - 15 -40PB1 Out of range 15 -40PB2 - 15 -40PB2 - 15 -40PB2 Out of range 15-49 - 15-49 - 15-49 Out of range 15-49 - 15-49A - 15 -49A Out of range 15-49 - 15- 49APB1 - 15- 49APB1 Out of range 15-49 - 15-49B - 15 -49B Out of range 15-49 - 15 -49PB1 - 15 -49PB1 Out of range CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 3/30/2010 9:18:35AM Page 3 of 49 COMPASS 2003.16 Build 71 • • All Measurements are from top of Riser 3/30/2010 i CD (/) CC 15 -37C top of bag r BAG bttm of bag } middle of blind /shears 1 Blind /Shears I I TOTs middle of pipe /slips I 2 3/8" combi ram /sli • I ^ Mud Cross Mud Cross middle of flow cross I I I middle of rams 2 3/8" x 3 1/2" VBR's I I TOTs I middle of pipe /slips 2 3/8" combi ram /slips I I 1 Swab Valve i Flow Tee Alaska Department of Natural esources Land Administration System Page 1 of/ 1 i • Alaska Mapper Land Records /Status Plats Recorder's Search State Cabins Natural Resources I- Alaska DNR Case Summary File Type: ADL File Number: 28306 8 Printable Case File Summary See Township, Range, Section and Acreage? t t New Search (!) Yes 0 No LAS Menu 1 Case Abstract 1 Case Detail 1 Land Abstract File: ADL 28306 % Search for Status Plat Updates As of 04/05/2010 Customer: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER - ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 09/14/1965 Total Acres: 2560.000 Date Initiated: 05/28/1965 Office of Primary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction: AA -NRB ASSIGNMENT APPROVED Meridian: U Township: O11N Range: 014E Section: 15 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 014E Section: 16 Section Acres: 640 Meridian: U Township: 011N Range: 014E Section: 21 Section Acres: 640 Meridian: U Township: O11N Range: 014E Section: 22 Section Acres: 640 Legal Description 05 -28 -1965 ** *SALE NOTICE LEGAL DESCRIPTION * ** C14-127 11N 14E UM 15,16,21,22 2560.00 U- 3- 7 End of Case Summary Last updated on 04/05/2010. http://dnr.alaska.gov/projects/las/Case Summary. cfm ?FileType= ADL &Fil eNumber =2 83 06... 4/5/2010 Page 1 of 2 . • Schwartz, Guy L (DOA) From: NSU, ADW Well Integrity Engineer [ NSUADWWellIntegrityEngineer @BP.com] Sent: Wednesday, April 14, 2010 8:45 PM To: Maunder, Thomas E (DOA) Cc: Regg, James B (DOA); Schwartz, Guy L (DOA); NSU, ADW Well Integrity Engineer Subject: RE: DS 15 -37B (204 -019) Attachments: 15 -37B. pdf Hi Tom, Thank you for sending this to us for review. I will be working with town engineers to review these Sundry requests before they are submitted to avoid future confusion. The original completion of 15 -37 in June, 1994 left an open shoe to formation. During the MIT -OA on 15 -37B on June 5, 2009, the first attempt at the MITOA to 2000 psi passed losing 120 psi in the first 15 minutes, and 40 psi in the second 15 minutes. The OA was again pressured to 2000 psi. The OA pressure fell off to 680 psi in 15 minutes. It is believed that the additional fluid caused the formation to temporarily open. While bleeding down the OA pressure after the test, there was bubbling noted in the empty well slot between 15 -37B and 15 -38A. There was ice and water in the cellar of 15 -37B obstructing a view of the flutes. Later in the day, both the cellar on 15- 37B and the conductor between 15 -37B and 15 -38A where monitored with no signs of bubbling although ice and water inflow where noted in the conductor between 15 -37B and 15 -38A and across the pad. This is normal spring thaw activity. Minor bubbling was noted the next day on June 6, 2009 with zero LEL readings. The area was monitored daily for the next week with no note of LELs or bubbling. This is thought that the original bubbling was due to spring thaw when air trapped in the gravel pad /tundra can find a path to surface. Recently a MITOA passed to 2000 psi on 15 -37B on April 5, 2010 confirming surface casing integrity and supporting the belief that the formation at the OA shoe will hold some pressure. A welibore schematic has been included for reference. Please let us know if you have any further questions. Thank you, Anna 'Dube, (F- (alt Torin Roschinger) Well Integrity Coordinator GPB Wells Group Phone: (907) 659 -5102 Pager: (907) 659 -5100 x1154 From: Maunder, Thomas E (DOA) [mailto:tom.maunder @alaska.gov] Sent: Friday, April 09, 2010 1:38 PM To: NSU, ADW Well Integrity Engineer Cc: Regg, James B (DOA); Schwartz, Guy L (DOA) Subject: DS 15 -37B (204 -019) Torin or Anna, 4/15/2010 Page 2 of 2 • • Attached is the "letter" received regarding the intended P&A and sidetrack of DS 15 -37B. The information in paragraph 2 is of interest. It appears that while attempting a MITOA on June 5, 2009, pressure was lost and there were bubbled in an adjacent slot. 1 don't believe the suppositions that the "shoe may have been blown off' and "the well is in sound mechanical condition" accurately describe what appears to be the failure, potentially shallow, of the 9 -5/8" surface casing. Jim and I have checked our records and we do not find any correspondence regarding the events of June 5. Would you examine your records to see what might be available? Thanks in advance, Tom Maunder, PE AOGCC 4/15/2010 • TRANSMITTAL LETTER CHECKLIST WELL NAME ?.84/ As PTD# ✓ Development Service Exploratory Stratigraphic Test Non - Conventional Well FIELD: /.),C1 27,4,' POOL: ,2:3e.4 Circle Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ADD -ONS (OPTIONS) WHAT T 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(0,.a11 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 ID 0 11 11 co 0) 0 o a N W I 2 6 _ 7 i c 0 0 w 1 m 0 E 1 O a E O a 2 ' U. 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O o ' ? 0, 0 0 3 0) 0 q 0' m 60 w w . 3 ' 0' m' 1 . 0 'E c' 6 m, =.'c' ' 0 v - - c> a > > 0 a E, E c - 3 a c ' c ,c F - H H, N ; 0 aa), > _ a a, o. �, '23 cL), E :° ti co c. co 0 0 .c ' m' a) a a 4 a>. m m T) - 0 o 1 0, 7 2, 2' 2, co a O. Qw a v • O. O s=, ° a) a) co a), a) o. 0 • >a 3D��' co, �OO a,a 0, �¢.a,z,lU,U,U U, us, Q o mm0, L 1 0 0(O1)),0 CO a E __ O N CO V co t` a0 a) O ,- (V CO )° CO t` CO 0) 0 CO N CO V I O CO I') 00 0) N CO C co co f- a0 O r' N N N N N N N N N N M CO M M M M 01 1') M M 0 I O 0 E. w O w O I c d "' €} a0 O 0 0 to i> to O to o a c icr 0 E O a) m U E N a) E +£- N •c C o + U) U r Q U Q Q Q a ¢ Q Q ! w • • 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 inforwrwation. • • tapescan.txt * * ** REEL HEADER * * ** MWD 10/09/29 BHI 01 LIS Customer Format Tape * * ** TAPE HEADER * * ** MWD 10/06/28 3235172 01 3" CTK * ** LIS COMMENT RECORD * ** 111111,111111111111 Remark File Version 1.000 (111 Extract File: ldwg.las Version Information VERS. 1.20: CWLS log ASCII Standard - VERSION 1.20 WRAP. NO: One line per frame -Well Information Block # MNEM.UNIT Data Type Information STRT.FT 10804.0000: Starting Depth STOP.FT 13976.0000: Ending Depth STEP.FT 0.5000: Level Spacing NULL. - 999.2500: Absent Value COMP. COMPANY: BP Exploration (Alaska), Inc. WELL. WELL: 15 -37C FLD . FIELD: Prudhoe Bay Unit LOC . LOCATION: 70 deg 17' 47.101 "N 148 deg 34' 5.849 "W CNTY. COUNTY: North Slope Borough STAT. STATE: Alaska SRVC. SERVICE COMPANY: Baker Hughes INTEQ TOOL. TOOL NAME & TYPE: 3" CTK DATE. LOG DATE: 28 Jun 2010 API . API NUMBER: 500292248503 -Parameter Information Block #MNEM.UNIT Value Description SECT. 22 Section TOWN.N T11N Township RANG. R14E Range PDAT. MSL Permanent Datum EPD .F 0 Elevation Of Perm. Datum LMF . DF Log Measured from FAPD.F 59.50 Feet Above Perm. Datum DMF . DF Drilling Measured From EKB .F 0 Elevation of Kelly Bushing EDF .F 59.50 Elevation of Derrick Floor EGL .F 0 Elevation of Ground Level Page 1 0/0-03 a6a • • tapescan.txt CASE.F N/A Casing Depth 0S1 . DIRECTIONAL Other Services Line 1 Remarks (1) All depths are Measured Depths (MD) unless otherwise noted. (2) All depths are Bit Depths unless otherwise noted. (3) All True Vertical Depths ( TVDSS) are Subsea corrected. (4) All Formation Evaluation data is realtime data. (5) Baker Hughes INTEQ utilized CoilTrak downhole tools and the Advantage surface system to log this well. (6) Tools ran in the string included Casing Collar Locator, an Electrical Disconnect and Circulating Sub, a Drilling Performance Sub (Inner and Outer Downhole Pressure, vibration and Downhole weight on Bit), a Directional and Gamma Sub, and a Hydraulic Orienting Sub with a Near Bit Inclination Sensor. (7) Data presented here is final and depth shifting has been waived by Jennifer Flight with BP Exploration (Alaska), Inc. The MWD data is now the Primary Depth Control (PDC) log for well 15 -37C. (8) The sidetrack was drilled from 15 -37B through a milled window in a 4 1/2 inch liner. Top of window 11351 ft.MD (8735.3 ft.TVDSS) Bottom of window 11358 ft.MD (8735.1 ft.TVDSS) (9) Tied to 15 -37B at 11331 feet MD (8735.5 feet TVDSS). (10) The interval from 13927 ft to 13976 ft MD (8758.8 ft. to 8756.8 ft. TVDSS) was not logged due to sensor to bit offset at well TD. MNEMONICS: GRAX -> Gamma Ray [MWD] (MWD -API units) ROP_AVG -> Rate of Penetration, feet /hour RACHX -> Resistivity (AT)(LS)400kHz- Compensated Borehole Corrected (OHMM) RACHX -> Resistivity (AT)(LS)2MHz- Compensated Borehole Corrected (OHMM) RPCLX -> Resistivity (PD)(LS)400kHz- Compensated Borehole Corrected (OHMM) RPCHX -> Resistivity (PD)(LS)2MHz- Compensated Borehole Corrected (OHMM) TVDSS -> True Vertical Depth (Subsea) CURVE SHIFT DATA BASELINE, MEASURED, DISPLACEMENT EOZ END ! BASE CURVE: GROH, OFFSET CURVE: GRAX Tape Subfile: 1 74 records... Minimum record length: 10 bytes Maximum record length: 132 bytes * * ** FILE HEADER * * ** MWD .001 1024 * ** LIS COMMENT RECORD * ** !!!!!!!!!!!!IIIIIII Remark File version 1.000 The data presented here is final and depth shifting has been waived by Jennifer Flight with BP Exploration (Alaska), Inc. The MWD data is Page 2 i • tapescan.txt now the Primary Depth Control (PDC) log for well 15 -37C. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale Units: Feet Frame spacing: 0.500000 Frame spacing units: [F ] Number of frames per record is: 36 One depth per frame (value= 0) Datum Specification Block Sub -type is: 1 FRAME SPACE = 0.500 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool Code samples units Size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 177 Tape File Start Depth = 10804.000000 Tape File End Depth = 13976.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet * * ** FILE TRAILER * * ** Tape Subfile: 2 190 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * ** FILE HEADER * * ** MWD .002 1024 * ** LIS COMMENT RECORD * ** Page 3 . . . tapescan.txt IIIIIIIIIIIIIIIIIII Remark File version 1.000 This file contains the raw - unedited field MWD data. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth scale units: Feet Frame spacing: 0.250000 Frame spacing units: [F ] Number of frames per record is: 36 one depth per frame (value= 0) Datum Specification Block Sub -type is: 1 FRAME SPACE = 0.250 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool code Samples Units size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 353 Tape File start Depth = 10804.000000 Tape File End Depth = 13975.750000 Tape File Level Spacing = 0.250000 Tape File Depth units = feet * * ** FILE TRAILER * * ** Tape Subfile: 3 366 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * ** TAPE TRAILER * * ** MWD 10/06/28 3235172 01 Page 4 . . tapescan.txt * * ** REEL TRAILER * * ** MWD 10/09/29 BHI 01 Tape Subfile: 4 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes 0 Tape Subfile 1 is type: LIS 0 Tape Subfile 2 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 10804.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 10804.5000 26.3000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 13976.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Tape File Start Depth = 10804.000000 Tape File End Depth = 13976.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet 0 Tape Subfile 3 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 10804.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 10804.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 13975.7500 - 999.2500 159.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 10804.000000 Tape File End Depth = 13975.750000 Tape File Level Spacing = 0.250000 Tape File Depth Units = feet 0 Tape Subfile 4 is type: LIS Page 5 411 410 tapescan.txt Page 6
