The URL can be used to link to this page

Home My WebLink About209-1307. 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 C-20C Pull Plug Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 209-130 50-029-20745-03-00 14350 Surface Intermediate Liner Liner Liner 8904 2856 8959 2373 635 3069 11959 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-3/16" x 2-7/8" 8855 35 - 2891 33 - 8992 8832 - 11205 11013 - 11648 11265 - 14354 35 - 2660 33 - 6257 6153 - 8338 8150 - 8709 8396 - 8904 14297 2670 4760 5410 7500 10530 11959 5380 6870 7240 8430 10160 11210 - 14270 4-1/2" 12.6# 13cr80, L80 30 - 11017 8343 - 8904 Conductor 80 20" x 30" 36 - 116 36 - 116 4-1/2" Baker S3 Packer 10823, 7965 10823, 10961 7965, 8100 Torin Roschinger Operations Manager Finn Oestgaard finn.oestgaard@hilcorp.com 907-564-5026 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 0028305 30 - 8154 N/A N/A 266 324 25738 36987 0 33 750 800 1050 1200 N/A 13b. Pools active after work:PRUDHOE OIL 4-1/2" Baker S3 Packer 10961, 8100 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 No SSSV Installed By Grace Christianson at 8:12 am, Apr 03, 2025 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2025.04.02 16:29:12 - 08'00' Torin Roschinger (4662) RBDMS JSB 041025 JJL 5/8/25 DSR-4/7/25 ACTIVITY DATE SUMMARY 3/25/2025 ***WELL FLOWING ON ARRIVAL*** PULLED PRING FROM PX PLUG @ 11,267' MD. JARRED ON 2.31" PX PLUG BODY 2.25 HOURS W/ NO MOVEMENT. ***CONTINUED ON 3-26-25*** 3/26/2025 ***CONTINUED FROM 3-25-25*** JARRED ON PLUG BODY @ 11,267' MD @ 1800# FOR 1 HOUR SWAP TO .160" WIRE JARRED FOR 1 HR NO MOVEMENT T-BIRD LOADED 205 bbls DIESEL IN TBG PULLED 2-7/8" PLUG BODY FROM PTSA @ 11,267' MD ***WELL S/I ON DEPARTURE*** 3/26/2025 T/I/O=2400/750/0 Temp=SI (Assist SL with TBG load) Pumped 205 BBLS of diesel down TBG for load and kill. DSO notified of departure. SL in control of well upon departure. Final WHPS=500/740/0 Daily Report of Well Operations PBU C-20C 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 C-20C Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 209-130 50-029-20745-03-00 14350 Surface Intermediate Liner Liner Liner 8904 2856 8959 2373 635 3069 11267 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-3/16" x 2-7/8" 8398 35 - 2891 33 - 8992 8832 - 11205 11013 - 11648 11265 - 14354 35 - 2660 33 - 6257 6153 - 8338 8150 - 8709 8396 - 8904 11959, 14297 2670 4760 5410 7500 10530 11267, 11959 5380 6870 7240 8430 10160 11210 - 14270 4-1/2" 12.6# 13cr80, L80 30 - 11017 8343 - 8904 Conductor 80 20" x 30" 36 - 116 36 - 116 4-1/2" Baker S3 Packer 10823, 7965 10823, 10961 7965, 8100 Torin Roschinger Operations Manager Michael Hibbert michael.hibbert@hilcorp.com 907-903-5990 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 0028305 30 - 8154 N/A N/A 266 117 25487 15316 40 24 350 350 1020 1500 N/A 13b. Pools active after work:PRUDHOE OIL 4-1/2" Baker S3 Packer 10961, 8100 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 No SSSV Installed By Grace Christianson at 3:56 pm, Oct 21, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.10.21 14:28:18 - 08'00' Torin Roschinger (4662) RBDMS JSB 103124 WCB 2-7-2025 DSR-10/23/24 ACTIVITY DATE SUMMARY 10/12/2024 ***WELL S/I ON ARRIVAL*** (Profile modification) STAGE UP POLLARD UNIT # 60 10/14/2024 ***WELL S/I ON ARRIVAL*** (Profile Modification) DRIFT w/ 2.25" CENTRALIZER & 1.75" SAMPLE BAILER TO 11,964' SLM SET 2.31" PX PLUG BODY AT 11,267' MD (confirmed w/ check set) RAN CENTRALIZED P-PRONG TO 10,971' SLM (unable to skip past - left in hole - SB sheared) CHASE PRONG DOWN TO LTP @ 11,947' SLM ***CONTINUED ON 10/15/24 WSR*** 10/15/2024 ***CONTINUED FROM 10/14/24 WSR*** (Profile modification) CHASE CENTRALIZED P-PRONG DOWN TO PX PLUG BODY @ 11,267' MD, SET PRONG & VERIFY w/ OVERPULL. ***WELL S/I ON DEAPRTURE*** Daily Report of Well Operations PBU C-20C SET 2.31" PX PLUG BODY AT 11,267' MD (confirmed w/ check set 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 C-20C Attempt to Mill Plug, Reset LTP Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 209-130 50-029-20745-03-00 14350 Surface Intermediate Liner Liner Liner 8904 2856 8959 2373 635 3069 11959 13-3/8" 9-5/8" 7" 4-1/2" 3-1/2" x 3-3/16" x 2-7/8" 8855 35 - 2891 33 - 8992 8832 - 11205 11013 - 11648 11265 - 14354 35 - 2660 33 - 6257 6153 - 8338 8150 - 8709 8396 - 8904 11959, 14297 2670 4760 5410 7500 10530 11959 5380 6870 7240 8430 10160 11210 - 14270 4-1/2" 12.6# 13cr80, L80 30 - 11017 8343 - 8904 Conductor 80 20" x 30" 36 - 116 36 - 116 4-1/2" Baker S3 Packer 10823, 7965 10823, 10961 7965, 8100 Stan Golis Sr. Area Operations Manager Ron Phillips - (C) Ron.Phillips@hilcorp.com 907.317.5092 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 0028305 30 - 8154 N/A N/A 344 1386 21577 17789 0 783 0 1250 753 1120 N/A 13b. Pools active after work:PRUDHOE OIL 4-1/2" Baker S3 Packer 10961, 8100 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 best of my knowledge. March 14, 2023 By Samantha Carlisle at 1:55 pm, Mar 14, 2023 DSR-3/14/23 N/A Attempt to Mill Plug, Reset LTP WCB 11-27-2023 Sundry Number or 209-130 PBU C-20C PRUDHOE BAY, PRUDHOE OIL RBDMS JSB 031423 ACTIVITY DATE SUMMARY 1/29/2023 LRS CTU #2- 1.50" Blue Coil Job OBjective: Mill CIBP MIRU CTU. Make up Baker 1.69" milling bha w/ 2.30" 5-bld junk mill. Tag in liner top packer, Unable to pass 2.31" X-Nipple at 11267' CTMD. POOH to inspect tools. Notice wear as if the nipple is only 2.28-2.29" OD. Make up 2.27" 5 bladed junk mill and RIH. Tag at same area. Attempt to time mill but have Multiple stalls at 11270' ctm. POOH to inspect tools. Mill is more flat than previous mill and wear noticeable on face and outer edges. Relay results to OE and agree to let slicklne troubleshoot obstruction in LTP. RIH and circulate in diesel freeze protect to 2500' TVD. ***Continued on 01/30/23*** 1/30/2023 LRS CTU #2- 1.50" Blue Coil Job OBjective: Mill CIBP Rig down and travel to shop for Maintenance. ***Job Objective Incomplete*** 2/2/2023 LRS 72 Assist CTU (MILL / UNDERREAM). Heat two UR tanks of seawater to 140*F. 2/3/2023 Standby for weather ( -42F ) 2/12/2023 ***WELL FLOWING ON ARRIVAL*** RAN 2.25 LIB TO OBSTRUCTION @ 11276' SLM, NO IMPRESSION RECOVERED. RAN 1.75" SAMPLE BAILER TO 11276' SLM, NO SAMPLE RECOVERED. RAN 1.98" STAR BIT TO 11276' SLM, JARRED FOR 45 MINS, NO METAL MARKS OBTAINED. RAN 10' OF 2-1/4" PUMP BAILER TO 11276' SLM. ***CONT, WSR ON 2/13/2023*** 2/12/2023 Freeze Protect TBG and FL for SL TBG= 2 BBLS 60/40 and 39 BBLS Crude FL = 9BBLS 60/40 and 104 BBLS Crude SL in control of well upn departure 2/13/2023 ***CONT, WSR FROM 2/12/2023*** ATTEMPT TO RUN 3.72" LIB TO LTP BUT SET @ 10961' SLM (POSSIBLY THE TIEBACK ASSEMBLY @ 11013' MD (NO INDICATION ON LIB ON WHAT TOOLS HUNG UP) TAGGED TOP OF LTP W/ 3.625" CENT @ 11262' SLM, 11258" MD RAN 2.30" LIB, TO OBSTRUCTION IN LTP BUT SET DOWN IN MULTIPLE AREAS WHILE RUNNING IN HOLE, NO USABLE IMPRESSION OBTAINED. RAN 2-7/8" GR & EQ PRONG, ATTEMPT TO LATCH @ 11276' SLM, NO SUCCESS. RAN 2.25" BLIND BOX TO 11276' SLM, NO MOVEMENT (flag wire Top LPT to Fish = 18') ATTEMPT TO SET 2-7/8" XX-PLUG @ 11276' SLM, NO SUCCESS. RAN 3.73" CENT TAG TO OF LTP @ 11262' SLM, GOOD METAL RING ON BTM OF CENT. ****CONT, WSR ON 2/14/2023**** 2/14/2023 ***CONT, WSR FROM 2/13/2023*** JARRED ON LTP @ 11259' SLM FOR 6.5HRS TOTAL W/ .125(c). ****CONT, WSR ON 2/15/2023**** 2/15/2023 T/I/O=1500/900/0 Assist Slickline (TBG Load). TFS U4. Pumped 206 BBLS of crude down the TBG to load for slickline. FWHP=1437/900/0. Well left in control of slickline upon departure. Daily Report of Well Operations PBU C-20C j Rig down and travel to shop for Maintenance SL working. -WCB JARRED ON LTP @ 11259' SLM FOR 6.5HRS TOTAL Tag in liner topgjg packer, Unable to pass 2.31" X-Nipple at 11267' CTMD. POOH to inspect tools. Relay results to OE and agree to let slicklne troubleshoot obstruction in LTP. LRS CTU #2- 1.50" Blue Coil Job OBjective: Mill CIBP Daily Report of Well Operations PBU C-20C 2/15/2023 ***CONT, WSR FROM 2/14/2023*** JARRED ON LTP @ 11259' SLM FOR 11.5HRS W/ .125(c). ***JOB PAUSED, WILL RETURN @ LATER DATE*** 2/16/2023 ***WELL S/I ON ARRIVAL*** HES UNIT 759 B/L RIG UP PULLED 45KB LTP @ 11183' BLM, 1.5' OF PTSA LEFT IN HOLE (appears that btm of PTSA below seal swiveled off. Possibly unscrewed when coil on last) RAN 3.00" LIB TO 11192' BLM, INCONCLUSIVE DUE TO HAVING ISSUED GETTING PAST THE STUB @ 10902' MD ***CONT, WSR ON 2/17/2023*** 2/17/2023 ***CONT, WSR FROM 2/16/2023*** RAN 2.85" LIB TO 11277' SLM, NO USABLE IMPRESSION OBTAINED. RAN 2-1/4" PUMP BAILER, RECOVERED 1/2 CUP OF HAD PACKED MILLINGS. RAN 1-3/4" DRIVE DOWN BAILER, NO RECOVERY, BENT BAILER BTM OUT @ 45 DEGREE ANGLE AND CHEWED UP. RAN 2.65" MAGNET, RECOVERED ONE PIECE OF METAL SHRAPNEL 4"x3" IN SIZE. RAN 1.75" MAGNET. ***CONT, WSR ON 2/18/2023*** 2/18/2023 ***CONT, WSR FROM 2/17/2023*** RAN 2.70" MAGNET TO 11280' SLM, NO RECOVERY. RAN 2.85" LIB TO 11280' SLM, OBTAINED 2.75" RING AROUND EDGE OF LIB. PLANT SPEAR IN FISH @ 11280' SLM, JARRED 10 TIMES UP TO 1000#, STRAIGHT PULL UP TO 1500#, 10TH JAR LICK FISH BEGAN MOVING, PARTED WIRE @ 11194' SLM, R/D HES UNIT 759, RIG UP HES UNIT 046. LOCATED WIRE @ 501' SLM. SHEARED GR DOWN HOLE, FISH AND STRIP WIRE TO SURFACE. ALL LOST WIRE & TS RECOVERED, SPEAR LEFT IN HOLE. ***JOB PAUSED TO SPOOL NEW WIRE*** 2/19/2023 ***CONT, WSR FROM 2/19/2023*** SPOOL ON NEW .125(c). @ HES SHOP. RAN 3.5" GR TO 11262' SLM, SD HIGH GR CAME BACK PACKED WITH PARAFFIN RAN 10' x 2.25" PUMP BAILER SD @ 11262' WORK BAILER TO 11272' SLM, RECOVERED HALF BAILER OF PARAFFIN. RAN 10' x 2.25" PUMP BAILER SD @ 11278' SLM, NO RECOVERY. ***CONT,WSR ON 2/20/2023*** 2/20/2023 ***CONT, WSR FROM 2/19/2023*** PULLED BTM 1.5' PORTION OF PTSA FROM LINER TOP @ 11271' SLM AFTER 4HRS OF JARRING. DRIFT TO W/ 2.00" LIB @ 11892' SLM. INCONCLUSIVE IMPRESSION TAGGED 64' HIGHER THEN CIBP ELMD DEPTH @ 11959'. HES UNIT 759 R/D ***JOB COMPLETE, WELL LEFT S/I ON DEPARTURE*** 3/1/2023 LRS CTU #2 - 1.50" Blue Coil Job Objective: Mill CIBP MIRU CTU. Make up 2.70" burnshoe on 1.69" Motor and RIH. Load well with Seawater with SL. Set down in fill at 11910' ctm, cleanout to plug at 11972' ctm. ***Continued on 3/2/23*** Coil MIRU. -WCB PULLED 45KB LTP @ 11183' BLM, 1.5' OF PTSA LEFT IN HOLE (appears that btm@( of PTSA below seal swiveled off. Possibly unscrewed when coil on last) PLANT SPEAR IN FISH @ 11280' SLM, JARRED 10 TIMES UP TO 1000#, @ STRAIGHT PULL UP TO 1500#, 10TH JAR LICK FISH BEGAN MOVING PULLED BTM 1.5' PORTION OF PTSA FROM LINER TOP @ 11271' SLM AFTER 4HRS OF JARRING j MIRU CTU. Make up 2.70" burnshoe on 1.69" Motor and RIH. Load well with Seawater with SL. Set down in fill at 11910' ctm, cleanout to plug at 11972' ctm. SL RDMO. -WCB PARTED WIRE @ 11194' SLM, R/D HES UNIT 759, RIG UP HES UNIT 046.@ LOCATED WIRE @ 501' SLM. SHEARED GR DOWN HOLE, FISH AND STRIP @ WIRE TO SURFACE. ALL LOST WIRE & TS RECOVERED, SPEAR LEFT IN HOLE JARRED ON LTP @ 11259' SLM FOR 11.5HRS Daily Report of Well Operations PBU C-20C 3/2/2023 LRS CTU #2 - 1.50" Blue Coil Job Objective: Mill CIBP milling CIBP @ 11,977' CTM. POOH bit trip. BD YJ Burnshoe. MU 2.30" 6 blade junk mill. RIH. Attmpt to mill CIBP at 11973 CTMD (11959 ELMD) but encounter numerous immediate stalls and unable to make progress. POOH to inspect tools. Appears to be liner damage at 11973 CTMD. FP Well. RDMO CTU. ...Job Incomplete.... 3/5/2023 ***WELL S/I ON ARRIVAL***(mill/underream) RAN 3.68" CENT, BARBELL, 3.70" CENT, 3.50" LIB, UNABLE TO PASS TUBING STUB @ 10,933' SLM ***CONT WSR ON 3/6/23*** 3/6/2023 ***CONT WSR FROM 3/5/23*** (mill/underream) RAN 10' x 2.25" PUMP BAILER, MSFB TO 11,981' SLM (recovered 10" x 1" OD core from surface choke, misc debris) MADE 2 RUNS W/ 2.70" CENT, 2.25" MAGNET TO 11,885' SLM (recovered 2.5" x .5" piece of metal, 2.5 cups coil shavings) MADE MULTIPLE BAILER RUNS TO 11,981' SLM (recovered metal debris) RAN DUAL BOWSPRINGS W/ 2.30" LIB TO 11,978' SLM (3 small impressions) ***CONT WSR ON 3/7/23*** 3/7/2023 ***CONT WSR FROM 3/6/23*** (mill/underream) RAN BARBELL BOWSPRINGS, 2.25" MAGNET TO 11,942' SLM (2cups metal shavings) B&F W/ 3.77" GAUGE RING, 4 1/2" BRUSH, 3 1/2" BRUSH TO DEPLOYMENT SLEEVE @ 11,268' SLM (t-bird pumped 156bbls crude) RAN 45KB LTP DRIFT W/ DUMMY STINGER ASSEMBLY TO DEPLOYMENT SLEEVE @ 11,267' SLM (good indication all the way in deployment sleeve) SET 45KB LTP (12.92' oal) W/ 2 7/8" RSG PLUG INSTALLED IN DEPLOYMENT SLEEVE @ 11,265' MD RAN 2.25" CENT, 2 7/8" X-CHECKER TO RSG PLUG @ 11,268' SLM (sheared) ***CONT WSR ON 3/8/23*** 3/7/2023 T/I/O= 825/860/0 (Assist Slickline) TFS U-3, Pumped 167 bbls crude assisting slickline with B&F. FWHP= 150/800/0 SL still on well upon departure. 3/8/2023 ***CONT WSR FROM 3/7/23*** (mill/underream) PULLED 2 7/8" RSG PLUG FROM LTP @ 11,267' SLM DRIFTED W/ 2.25" CENT TO 11,979' SLM ***WELL LEFT S/I UPON DEPARTURE, PAD OP NOTIFIED OF WELL STATUS*** Coil unable to mill CIBP. -WCB Coil was unable to mill the CIBP @11959 ELMD. SL was able to set a new LTP. The new WBS, below, reflects these points. -WCB () RAN 10' x 2.25" PUMP BAILER, MSFB TO 11,981' SLM (recovered 10" x 1" OD core from surface choke, misc debris) MADE 2 RUNS W / 2.70" CENT, 2.25" MAGNET TO 11,885' SLM (recovered 2.5" x ) .5" piece of metal, 2.5 cups coil shavings)g) MADE MULTIPLE BAILER RUNS TO 11,981' SLM (recovered metal debris) SL MIRU - WCB milling CIBP @ 11,977' CTM () PULLED 2 7/8" RSG PLUG FROM LTP @ 11,267' SLM Attmpt to mill CIBP at 11973 CTMD (11959 ELMD) but encounterj( numerous immediate stalls and unable to make progress. @(g yy ) SET 45KB LTP (12.92' oal) W/ 2 7/8" RSG PLUG INSTALLED IN DEPLOYMENT( SLEEVE @ 11,265' MD () RAN 3.68" CENT, BARBELL, 3.70" CENT, 3.50" LIB, UNABLE TO PASS TUBING STUB @ 10,933' SLM O O O O O O O Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:209-130 6.50-029-20745-03-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 14354 11959 8855 10823, 10961 14297 11959 7965, 8100 Casing: Length: Size: MD: TVD: Burst: Collapse: Conductor 80 20" x 30" 36 - 116 36 - 116 Surface 2856 13-3/8" 35 - 2891 35 - 2660 4930 2670 Intermediate 8959 9-5/8" 33 - 8992 33 - 6257 6870 4760 Liner 2373 7" 8832 - 11205 6153 - 8338 7240 5410 Liner 635 4-1/2" 11013 - 11648 8150 - 8709 8430 7500 Perforation Depth: Measured depth: 11210 - 14270 feet True vertical depth:8343 - 8904 feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# 13cr / L80 30 - 11017 30 - 8154 10823, 10961 7965, 8100Packers and SSSV (type, measured and true vertical depth) 4-1/2" Baker S3 Packer Liner 3089 11265 - 14354 8396 - 8904 10160 10530 12. Stimulation or cement squeeze summary: Intervals treated (measured): N/A Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 8470486 0 34445 Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Wyatt Rivard wrivard@hilcorp.com Authorized Name:Stan Golis Authorized Title: Authorized Signature with Date:Contact Phone:(907)777-8547 Treatment descriptions including volumes used and final pressure: 13. Operations Manager Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP SPLUG 16. Well Status after work:Oil 5 Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured8904 Sundry Number or N/A if C.O. Exempt: No SSSV installed Junk Packer Printed and Electronic Fracture Stimulation Data 5 Reset Liner Top Packer Operations shutdown Change Approved Program 5 N/A Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well5 3.Address: 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 7.Property Designation (Lease Number):ADL 028305 PBU C-20C 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations 3-1/2" x 3-3/16" x 2-7/8" N/A 16 17151 28 425 By Samantha Carlisle at 11:24 am, Nov 02, 2020 Digitally signed by Stan Golis DN: cn=Stan Golis, ou=Users Date: 2020.11.02 08:22:35 - 09'00' Stan Golis DSR-11/2/2020MGR09NOV2020 RBDMS HEW 11/2/2020 SFD 11/3/2020 ACTIVITY DATE SUMMARY 10/3/2020 ***WELL S/I ON ARRIVAL***(profile mod) JAR ON 4-1/2" BAKER KB LTP @ 11,244' SLM.(gs sheared) ***CONT'D JOB ON 10/04/20 WSR*** 10/4/2020 ***CONT'D FROM 10/03/20 WSR***(profile mod) JARRED ON 4-1/2" BAKER LTP @ 11,244' SLM.(3hrs/.125" carbon) ***CONT'D JOB ON 10/05/20 WSR*** 10/5/2020 ***CONT'D FROM 10/04/20 WSR*** JARRED ON 4-1/2: BAKER LTP @ 11,257' MD. (1.3hrs /.160" carbon) ***JOB CONTINUED ON 10/5/20 WSR*** 10/5/2020 T/I/O=2200/750/0 Assist Slickline Load tbg with 275 bbls 120* crude FWHPs=600/800/0 10/6/2020 ***JOB CONTINUED FROM 10/5/20***(ltp) PULLED/PARTED 45KB LTP FROM DEPLOYMENT SLEEVE @ 11257' (40" LTP slips OOH/approx 9' still in deployment sleeve) PLANTED 4 1/2" SLICK CATCH SPEAR ***JOB CONTINUED ON 10/7/20*** 10/7/2020 ***JOB CONTINUED FROM 10/6/20*** FISHED PARTED LTP FROM DEPLOYMENT SLEEVE @ 11257' MD. ***JOB CONTINUED ON 10/7/20*** 10/8/2020 ***JOB CONTINUED FROM 10/7/20*** WAITING ON WEATHER(wind) ***JOB CONTINUED ON 10/8/20*** 10/10/2020 T/I/O=2180/750/0 Assist Slickline. Load tbg with 70 bbls crude FWHPs=2200/750/0 10/10/2020 ***JOB CONTINUED FROM 10/8/20***(set ltp) BRUSHED DEPLOYMENT SLEEVE @ 11257' MD DRIFT WITH 45KB LTP DRIFT TO DEPLOYMENT SLEEVE @ 11257'MD SET 45 FLOGARD PACKER (18.14' OAL, 3.70 OD) IN DEP SLV @ 11257' MD. TOP OF PKR @ 11247' MD. ***JOB COMPLETE**** 10/16/2020 ***WELL S/I ON ARRIVAL***(profile mod) JARRED ON 4-1/2" BKR LTP @ 11,223' SLM.(1hr/.125") ***CONT'D ON 10/17/20 WSR*** 10/17/2020 ***CONT'D FROM 10/16/20 WSR***(profile mod) PULLED 4-1/2" BAKER 45KB LTP ASSY FROM DEPLOY SLV @ 11,265' MD.(missing 1/2 element) RAN 3.80" GUAGE RING & 4-1/2"/3-1/2" BRUSH ASSY TO DEPLOY SLV @ 11,265' MD.(recovered 1/4 element) RAN 45KB/PTSA DRIFT TO DEPLOY SLV @ 11,265' MD.(2 tt pins sheared, no ring on tabs) RE-RAN 3.80" GUAGE RING & 4-1/2"/3-1/2" BRUSH ASSY TO DEPLOY SLV @ 11,265' MD.(no recovery) RE-RAN 45KB/PTSA DRIFT TO DEPLOY SLV @ 11,265' MD.(tt pins sheared/ring on brass tabs) ***CONT'D ON 10/18/20 WSR*** 10/18/2020 ***CONT' FROM 10/17/20 WSR***(profile mod) SET 4-1/2" BAKER FLOGARD LTP ASSY IN DEPLOY SLV @ 11,265' MD. ***WELL S/I ON DEPARTURE, PAD-OP NOTIFIED OF WELL STATUS*** Daily Report of Well Operations PBU C-20C Samuel Gebert Hilcorp Alaska, LLC GeoTech Assistant 3800 Centerpoint Drive, Suite 1400 Anchorage, AK 99503 Tele: 907 777-8337 Fax: 907 777-8510 E-mail: sam.gebert@hilcorp.com Please acknowledge receipt by signing and returning one copy of this transmittal or FAX to 907 777.8510 Received By: Date: DATE: 10/22/2020 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 DATA TRANSMITTAL PBU C-20C (PTD 209-130) Production Profile 09/27/2020 Please include current contact information if different from above. Received by the AOGCC 10/22/2020 PTD: 2091300 E-Set: 34124 Abby Bell 10/22/2020 STATE OF ALASKA OLASKA OIL AND GAS CONSERVATION COMMISN REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations Q Fracture Stimulate 0 Pull Tubing 0 Operations shutdown ❑ Suspend 0 Perforate Q Other Stimulate ❑ Alter Casing 0 Change Approved Program ❑ Plug for Redrill 0 Perforate New Pool CI Repair Well 0 Re-enter Susp Well 0 Other: '/3P 1v 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 209-130 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-20745-03-00 7. Property Designation(Lease Number): ADL 0028305 8. Well Name and Number: PBU C-20C 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 14350 - I VED feet Plugs measured 11959 feet RECC true vertical 8904 feet Junk measured 14297 feet N O V 2 8 2016 Effective Depth: measured 11959 feet Packer measured See Attachment feet true vertical 8855 feet Packer true vertical See Attachment feet AOGCC Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"x 30" 28-108 28-108 Surface 2857 13-3/8"72#L-80 27-2884 27-2656 4930 2670 Intermediate Production 8967 9-5/8"47#L-80 26-8994 26-6258 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 11210-11240 feet 12480-12560 feet 12750-12780 feet 13110-13300 feet 13460-13600 feet 13660-13790 feet 13840-14090 feet 14170-14270 feet True vertical depth: 8343-8372 feet feet 8923-8926 feet 8928-8930 feet 8922-8921 feet 8917-8916 feet 8916-8913 feet 8912-8905 feet 8905-8904 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): 'SCANNEDNNEDIV AR 4 8 2U1? Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 647 39093 51 670 937 Subsequent to operation: 515 40853 40 790 939 14.Attachments:(required per 20 MC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory ❑ Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas ❑ WDSPL ❑ Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ ❑ 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 Mae, e1/4.------- ...„.. Phone +1 907 564 4424 Date 11/28/16 Form 10-404 Revised 5/2015 V 17._. 7111# 1)7- RB DMS LA, DEC - 6 2016 07-7/&,./(7 �� ubmit Original Only • • Packers and SSV's Attachment PBU C-20C SW Name Type MD ND Depscription C-20C PACKER 8841.8 6159.2 7" Baker ZXP Top Packer C-20C TBG PACKER 10827.4 7969.31 4-1/2" Baker S-3 Perm Packer C-20C TBG PACKER 10962.03 8100.67 4-1/2" Baker S-3 Hydro Set Packer C-20C PACKER 11020.8 8157.97 4-1/2" Baker ZXP Packer •to LO • m p 0, � U) r` � C) 000 N c M 0 ctO M M m CD CD CO N O O CV 03 OD 0 CO OD O O) r O) M CO O 0 111 M 0 CO N O Cn CD Cn CONMN- CpO) O) NOr N CO OD 00 O OD 00 CO 00 CO5,211 . 1111 . 11 . N.- CO CUD Ul CD 00 N Tr Cf) N N N r r C'') CD O) N N O CD OD OD O OD O0 ,. 100 N- O M O) CD CD yr CD OCOO) N CCDON- CC')Ul NON) O T- rrrNTr Or N 00 NC r r r r r r r CIS mcIIIIIIIIIII Q0 MCf) U) N- 0 00 N CO MON CO O� 0c 0• 0 N N N Cy N N 0 r r r r r �• MM 0 O a CO0O 00 000 0p CD O V COO O - J 0CO J J J J CrJ _1 c`) -I N * CD .N N x I,- (Ni O O r CD N CO ED 00 Cl) - - N � co _CD Nr 0 00 r _ C.) N M _ N N Zt 22 N - M Mrft- - N r ON r � M M i 4 4 CcO00O0C) C') M � acOoN0O0O J N00 NCO M r r O r Z C)O O 5UV ' U Cco ) OLLa cc ZZZ Z Co W W W W W m m m Q D D Z Z Z Z Z D D D 0 In 0- J J J J J F- I- F- 0 • @ 7 � w I- 'E of 3 - 2 " 0 0 u L = Li. 2 $ W a b 0 2 7 2 / ¢ LPI cl 0 d w 2 w ! R w0 = o u 2 co coI— O ,- Z q p 0 wcc a ^ a Q. „ ill 2 o LL % < L _m ° _ F- < / / 40 E ƒ w ( • c C a E0 I & Z 7 t W W / & L 0 / < 3t W ' k u) co 0 co 11 b O q a ■ o @: R f z _2 co -J / u & / � / g k a D zq ƒ 0 0E E ■ < w • 7 m _ . O 2 �Q � 2 � cDri _ W na cm u � z ka o. R % k 0W - 0 . / 0 � w / 0 -ice O � 0UmGc waw Amo w gal ± IIS D - 0 Tr 2- 02 � d ® � q c0 W0 � 0q x ƒ > U b / $ � 0) 02C / Lu 3: CL < R m ® 0 _ .. � ! ¥ 9 CL w w m & t co _1q R � � A2@ < 0 wW d1- w / 0 z 0 CL / ' � / O / WW2 < / A () m ® � 0 � io � 2CLE r-- 11, 8 < 0 & 4k b . wfI ( � 2Ez �k2 ® / <C2 k / q R - � tZwbow < - ~ - < •d > I E p Q < 0 / - Q 6 a Cy) \ ¥ 2 CI � � }� � � > ƒ -Zco N5T6O � • Ctwk / w � � Rm ¥ o 57 - � � QOO 000 � IQ .gym Lw „ � gWp2 � O -- Re LL % > cqf D / U-1 3: kcqT- o < CL / / S2 � % > u) / i � (DE- � G � / % 0 / 2R j & wu � q - —I -JO - q .. > 2 A � o WI < 1- 1 ” 2 .� 0 u < w - ® b � � 2wo � � = C � W .0 >2g * Lq3 : % gRF- 2 � / kR � � k | 0 O O | A 13 m R 2 | � c 2 '- m- 2 o < 0 i O 0 L < o o co co a 00 N / - x- _\ _\ / / (Nco2 _ N ® k A0 0 < TTS= 63/8"CRS FLS • SA NOTES: WELL ANGLE>70"@ 11881'. '""4-112" 1ACTIIATOR CNV BAKB C C-2 O C CH E TBG"'4-112"WLEG IS NOT INTO TOP OF LNR TIE-BACK SLV. SQUARE SHOULDERED TOOLS WILL /VIAL KB.ELE 67.20' ( . ' HANG UP ON WLEG. 5 SS BANDS IN HOLE DURING 2005 BF.a v= 34.3' RWO.""ORIG WELL,C-20A&C-20B NOT SHOWN BELOW KOP= 500' 20"COND ? ' WHIPSTOCK""" MIX Angle= 97' 13007' Datum M)= 11979' 1993' 4117 HES X NIP, ID=3.813" Datum TVD= 8800'SS GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 113-3/8"CSG,72#,L-80,D=12.347' H 2$91' 1". "T3 4688 3728 54 MMG DOME RK 16 03/20/10 TOP OF TIEBACK --{ 8837 2 8318 5845 55 MMG SO RK 20 03/20/10 1 10734 7878 13 KBG2 OMY BK 0 01/24/05 i 8840' H9-5/8'X 7'BKR ZXP PKR/TEBACK,O=6.313' WHIPSTOCK(06/23/97) H 8982• 8846'_l i-{7•BKR MAC LNR HGR,D=6.250" 9-5/8"CSG,47#,L-80,MRS,O=8.681" H -9028 ll MILLOUT WINDOW(C-20A)8992'-8028' Minimum ID = 2.37" @ 11257' 4-1/2" KB LINER TOP PACKER I 1 10807 -4-1/7 HES X NIP, ID=3.813' o: q---- l 10823' _7"X4-1/2"BKR S-3 PKR,ID=3.875' 14-1/2'TBG STUB(01/18/05) - 10902' C I ' 10$$9• _4-1/2'HES X NP,ID=3.813' 4-1/2'TBG,12.6#,13CR,.0152 bpf,ID=3.958' -1 10510• ) 1 10911• _7'X4-1/YUNIQUE MACHINE OVERSHOT I r.........."1 10950' _14-1/2'OTIS X NP, D=3.813" 10961' 1_17"BKR S-3 PKR D=3.875' M 10984' �4-1/2"OTIS X NIP, ID=3.813' TOP OF 41/2"LNR - 11013' 41/2"TBG,12.68,LSO,.0152 bpi ID=3.958' 11017• 11005' ,_41/2"OTIS XN NP,MILLED ID=3.80' 1 11013' ,Jr X 4-1/2"TIEBACK SLV,ID=5.250" 11017' -{41/2"WLEG,ID=3.958' 11018' -7'X 41/7 BKR Z)03 PKK&HMC LNR,ID=4.438' 7'LNR,26#,L-80,.0383 bpf,D=6276" H 11205' 0 11257. -41/2'BKR KB LIP,ID=2.37' 40 �1 11265' _13.70"BTT DEPLOY SLV,ID=3.00' 13-1/2'LNR 8.81#,L-80 SIL,.0087 bpf,D=2.992" 1- 11607 .• 11287• _-3-1/2"OTIS X NIP, ID=2.817 4-1/7 WHIPSTOCK w/RA TAG(02/25/10) - 11647' 1ibd , 4112"LNR,12.68,L-80,.0152 bpf ID=3.958' - .116486 e ; 11607' _13-12"X 3-3/16"XO, ID=2.786" A PERFORATION SUMWIRY IX REF LOG: SLB/M(2�1_On 03/07/10 i •. MILLOUT WINDOW(C-20C)11648'-11656' i ANGLE AT TOP PERF: 13'(p 11210' Note:Refer to Production DB for historical pert data 11868'ELM 3-3/16"VNFD CEP(1028/16) SEE SPF N1821/AL OpnlSgz SHOT SOZ 12700' j3-3/16`X 2-7/8'XO, 3-3/8" 6 11210-11240 0 10/28/16 2" 6 12480-12560 C 03/04/10 / I D=2.377 2' 6 12750-12780 C 03/04/10 14297' FISH CEP MLLED 8 2" 6 13110-13300 C 03/04/10 ` PUSHED(05/16/14) 2" 6 13460-13600 C 03/04/10 3-3/16'LNR,6.28,L-80 TCII, H 12700• 2' 6 13660-13790 C 03/04/10 .0076 bpf ID=2.80' �►wimp 6 13840-14090 C 03/04/10 PBTD 14314' 6 14170-14270 C 03/04/10 ` 2" � 2' 0;IV 2-7/8"LNR,6.48,1-80 SIL,.0058 bpf,0=2.441" H 14354' DATE REV BY COMMINTS DATE REV BY C N&ENTS PRUDHOE BAY UM - 07/12/82 N26E INITIAL COMPLETION 10/31/12 JKC/PJC SET COP(10/01/12) WELL G20C 07/12197 D-16 SIDETRACK(C-20A) 08/13/13 DLNJM) TREE C/O(07/22/13) PERMIT No:"2091300 08/16/00 NORDIC1 CTD SIDETRACK(C-20B) 05/19/14 IRA/JIM HSI kilLED CI3P(5/16/14) AR No: 50-029-20745-03-00 01125/05 NOES RHO 11/02/16 M D/JR0 SET CUP 8 ADPERFS(10/28/16) SEC 19,T11N,R14E,774'FM_8 1522'Fa 03/09/10 NORDICI CTD SIDETRACK(C-20C) 07/08/10 WM'JM) DRLG DRAFT CORRECTIONS BP Exploration(Alaska) • Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. QQ q - Lao Q Well History File Identifier Organizing (done) ❑ Two -sided 111111111 ❑ Rescan Needed 111 lElill I 111 lilt 111111 RES N DIGITAL DATA OVERSIZED (Scannable) Color Items: ❑ D"skettes, No. �n� ❑ Maps: Greyscale Items: I AT Other, No/Type: cP Y°` 1 ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non - Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Maria Date: c a Li ! f /s/ p Project Proofing III 1111111 II 111 BY: Date: 4 ., e /s/ , � . Scanning Preparation / x 30 = + S = TOTAL PAGES (5 BY: Date: / (Count does not include cover sheet) vvl Production Scanning III (11111 ll II III Stage 1 Page Count from Scanned File: (Count does include cover sheet) Page Count Matches Number in Scanning Preparation: I/ YES NO BY: M D Date: a / / / /s/ I 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 11111 11111 11 111 ReScanned 1111111111111111111 BY: Maria Date: /s/ Comments about this file: Quality Checked 111 II 10/6/2005 Well History File Cover Page.doc DATE: 5- Nov -12 Stephanie Pacific) TRANS#• 6192 Data Delivery Services Technician _ 7Makana K Bender Scblamberger Oilfield Services -� Natural Resources Technician II WIRELUN£ 2 7 �a13 Alaska Oil. & Gas Conservation Commission SCANNED 2525 Gambell St, Ste. 400 SCA� .2 3 ;,. ca r AK FE �� . 7" _ v Suite 100 V ':??` Anchorage, AK 99503 IN: Office: (907) 273 -1770 It E l '�z n�. = SOR 91.rEi:1 ; 0,)-I RESERV '`CNL =MECH LOG' DESCRIPTION DATE 81W . COL D' NAME ORDER # DIST: DIST , . EAST . ,"� :: _ LOGGED ' IPWKS PRINTS :. . Z -34 BTJO -00034 X USIT MSIP 8-Sep-12 1 1 CD H -02B C4W7 -00035 X PPROF 24- Aug -12 1 1 CD 111, } G -29B C1UB -00030 X LEAK DETECTION LOG 13- Sep -12 1 1 CD D -27A C2JC -00056 X LDL W/ WATERFLOW 5- Sep -12 1 1 CD L -100 C3NA -00041 X SFRT CH FORMATION RESISTI\ 15- Oct -12 1 1 CD 06 -03A C4W7 -00036 X CEMENT BOND LOG 15- Sep -12 1 1 CD MPL -08 C600 -00036 X MEMORY INJECTION PROFILE 10- Aug -12 1 1 CD 15 -04B C600 -00045 X MEMORY PPROF 7- Sep -12 1 1 CD F -06A C3NA -00038 X PPROF W DEFT & GHOST 16- Sep -12 1 1 CD C -20C BCRC -00212 X MEMORY PPROF 1- Oct -12 1 1 CD 14 -27 C3NA -00039 X LEAK DETECTION LOG 17- Sep -12 1 1 CD V -221 BBSK -00135 X IPROF W/ WFL 22- Aug -12 1 1 CD MPC -42 C600 -00057 X MEMORY IPROF 9- Oct -12 1 1 CD MPC -28A C600 -00056 X MEMORY IPROF 9- Oct -12 1 1 CD MPL -16A C5XI -00033 X MEMORY IPROF 13- Sep -12 1 1 CD C -18B C600 -00053 X MEMORY PPROF 3- Oct -12 1 1 CD NK -22A BYS4 -00052 X LEAK DETECTION LOG 4- Sep -12 1 1 CD al MPG -01 C2JC -00054 X RST WATERFLOW LOG 31- Aug -12 1 1 CD 13 -36 BYS4 -00053 X LEAK DETECTION LOG 12- Sep -12 1 1 CD X X 11 esoefi-k— Please return a signed copy to: Please return a signed c y to: BP PDC LR2-1 DCS 2525 Gambell St, Suite 400 900 E Benson Blvd Anchorage AK 99503 Anchorage AK 99508 0 N - 0 +t RECEIVED STATE OF ALASKA NOV 0 1 2012 AllkA OIL AND GAS CONSERVATION COMMI ON REPORT OF SUNDRY WELL OPERATIONS AOGCC 1. Operations Abandon U Repair Well U Plug Perforations U Perforate U OtherU Performed: Alter Casing ❑ Pull Tubing❑ Stimulate - Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat. Shutdown❑ Stimulate - Other ❑ Re -enter Suspended Weil❑ 2. Operator 4. Well Class Before Work: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc ■ Development 151 Exploratory ❑ 209 -130 -0 3. Address: P.O. Box 196612 Stratigraphic❑ Service ❑ 6. API Number: ,, Anchorage, AK 99519 -6612 _ 50- 029 - 20745 -03 -00 7. Property Designation (Lease Number): 8. Well Name and Number: ADL0028305 PBU C -20C 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field /Pool(s): , 1 To Be Submitted PRUDHOE BAY, PRUDHOE OIL 11. Present Well Condition Summary: Total Depth measured 14354 feet Plugs measured 13350 feet true vertical 8904.24 feet Junk measured None feet Effective Depth measured 13350 feet Packer measured See Attachment feet true vertical 8920.15 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20" x 30" 26 - 106 26 - 106 Surface 2859 13 -3/8" 72# L -80 25 - 2884 25 - 2655.96 4930 2670 Intermediate None None None None None None Production 8968 9 -5/8" 47# L -80 24 - 8992 24 - 6256.95 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 12480 - 12560 feet 12750 - 12780 feet 13110 - 13300 feet 13460 - 13600 feet 13660 - 13790 feet 13840 - 14090 feet 14170 - 14270 feet True Vertical depth 8923.46 - 8926.08 feet 8928.21 - 8930.33 feet 8921.59 - 8920.72 feet 8917.34 - 8916.05 feet 8915.83 - 8913.32 feet 8912.2 - 8905.1 feet 8904.63 - 8903.84 feet Tubing (size, grade, measured and true vertical depth) See Attachment See Attachment • ••.•---6ee Attachment Packers and SSSV (type, measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12. Stimulation or cement squeeze summary: Intervals treated (measured): SCANNED JAN 2 3 2013 Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 639 38068 33 0 801 Subsequent to operation: 342 21331 19 0 1785 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development la ' Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil ;g 12 Gas ❑ WDSPiI1 GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUG0 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: N/A Contact Garry Catron Email Garrv.Catrc L, P.Com Printed Name Garry Catron Title PDC PE Signature Phone 564 -4424 Date 10/31/2012 ' :: ' ' .', ,:', fk: - 4 i'■ -) , - "ce: "P") i *2.--- /.7.,/ G Form 10 -404 Revised 10/2012 Submit Original Only • • Packers and SSV's Attachment ADL0028305 SW Name Type MD TVD Depscription C -20C PACKER 8840 6098.11 7" Baker ZXP Packer C -20C PACKER 10826 7908 4 -1/2" Baker S -3 Perm Packer C -20C PACKER 11019 8096.26 4 -1/2" Baker ZXP Packer • I Casing / Tubing Attachment ADL0028305 Casing Length Size MD TVD Burst Collapse CONDUCTOR 80 20" x 30" 26 - 106 26 - 106 LINER 2373 7" 26# L -80 8832 - 11205 6153.01 - 8338.01 7240 5410 LINER 629 4 -1/2" 12.6# L -80 11019 - 11648 8156.21 - 8708.84 8430 7500 LINER 342 3 -1/2" 8.81# L -80 11265 - 11607 8395.87 - 8680.7 LINER 1093 3- 3/16" 6.2# L -80 11607 - 12700 8680.7 - 8928.56 LINER 1654 2 -7/8" 6.4# L -80 12700 - 14354 8928.56 - 8904.24 10566 11165 PRODUCTION 8968 9 -5/8" 47# L -80 24 - 8992 24 - 6256.95 6870 4760 • SURFACE 2859 13 -3/8" 72# L -80 25 - 2884 25 - 2655.96 4930 2670 TUBING 3 7" 26# L -80 22 - 25 22 - 25 7240 5410 TUBING 10805 4 -1/2" 12.6# 13Cr80 25 - 10830 25 - 7971.85 8430 7500 • 1 Daily Report of Well Operations ADL0028305 ** *WLL S/I ON ARRIVAL ** *(profile MOD) ON 3RD ATTEMPT, DRIFTED W/ 2.14" CENT, 2' 1 -7/8" STEM, 2.25" CENT. STOP DUE TO DEVIATION @ 12,026' SLM. ** *WELL S/I ON DEPARTURE, PAD OP NOTIFIED * ** 9/15/2012 * ** *NOTE * * * ** UNABLE TO PASS LTP W/ 2.25" CENT & 1 -1/2" S. BAILER. CTU 3 - 1.75" Job Scope: Log /CIBP Rig up. Make up 2.25" Drift BHA and RIH to bottom and flag. Unable to tag coil locked up @ 14294' PUH to 14272' paint white & yellow flag. POOH at surface stack down check chains. * * * * * ** Job In • 9/29/2012 Progress * * * * * * ** CTU 3 - 1.75" Job Scope: Log /CIBP: * ** *Job Continued from 9/29/12 * * ** At surface perform chain inspection MU logging tools RIH. Can not get to depth without shutting in well. RIH, repop and 9/30/2012 stabilize before each up pass. * * * * * ** Job In Progress * * * * * * ** CTU 3 - 1.75" Job Scope: Log /CIBP: * ** *Job Continued from 9/30/12 * * ** RIH, repop and stabilize before each up pass. Make logging passes at 40,60 80 fpm. Stop counts paint red /white flag at 12350,' log to 10750', POOH. Good data and CIBP determined for 13,350'. Made up CIBP BHA and RIH. Determined +29.5' correction, tied in at flag and corrected to center element. Set CIBP at 10/1/2012 13350.0' and tagged to confirm. POOH. RDMO. Well shut in on departure. * ** Job Complete * ** • TREE= • CM/ • SAF TES: WEL AN GLE> 70° @ 11881'. "*'` 4 -1/2" WELLHEAD = CM/ CHR TBG ""4 -1/2" WLEG IS NOT INTO TOP OF LNR -� O ACTUATOR = AXELSON TIE -BACK SLV. SQUARE SHOULDERED TOOLS WILL KB. ELEV = 60.0' HANG UP ON WLEG. 5 SS BANDS IN HOLE DURING 2005 BF. ELEV = 34.3' I ' RWO.`*'ORIG WELL, C -20A & C -20B NOT SHOWN BELOW KOP= 1000' WHIPSTOCK'' Max Angle = 97° @ 13007' Datum MD - 11979' 21' 117" X 4-1/2" X/01 Datum TV D = 8800' SS ' I I 1993' H 4 -1 12" HES X NIP, ID = 3.813" I 113 -3/8" CSG, 72 #, L -80, ID = 12.347" H 2891' ■ GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE Minimum ID = 2.37" @ 11257' I _ 3 4688 3728 54 MMG DOME RK 16 03/20/10 BKR KB LTP I 2 8318 5845 55 MMG SO RK 20 03/20/10 1 10734 7878 13 KBG2 DMY BK 0 01/24/05 TOP OF TIEBACK H 8832' I I 8840' H 9 -5/8" X 7" BKR ZXP PKR/TIEBACK, ID = 6.313" 1 F 8846' 7" BKR HMC LNR HG ID = 6.250" PERFORATION SUMMARY ( I J I R REF LOG: SLB /MCNL On 03/07/10 ANGLE AT TOP PERF: 89° @ 12480' Note: Refer to R DB for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE �� 10802' 144 -1/2" HES X NIP, ID = 3.813" 2" 6 12480 - 12560 0 03/04/10 ••••••• • • 2" 6 12750 - 12780 0 03/04/10 • 1 1 �tt�� 10823' 7" BKR S -3 PKR, ID = 3.875" I 2" 6 13110 -13300 0 03/04/10 ....•..1 2" 6 13460 - 13600 RIC, 03/04/10 I 1 10889' 44 -1/2" HES X NIP, ID = 3.813" I 2" 6 13660 - 13790 ,0G 03/04/10 10910' 4 TBG STUB (01/18/05) 2" 6 13840 - 14090 fd'c- r 03/04/10 r _-- 10911' 4 UNIQUE MACHINE OVERSHOT I 2" 6 14170 - 14270 2G 03/04/10 10950' 44-1/2" OTIS X NIP, ID = 3.813" 1 ►�� 10961' 4 7" BKR S -3 PKR, ID = 3.875" 1 10984' 44-1/2" OTIS X NIP, ID = 3.813" 1 19-5/8" CSG, 47 #, L -80, BTRS, ID = 8.681" I-1 11705' 1 • I 11005' 44 -1/2" OTIS XN NIP, MILLED ID = 3.80" 1 14 -1/2" TBG, 12.6 #, 13CR, .0152 bpf, ID = 3.958" I 10910' -I 11017' H4 -1/2" WLEG I 1 4-1/2" TBG, 12.6 #, L -80, .0152 bpf, ID = 3.958" H 11016' r 110 1 4 7"x41/2" BKR ZXP FKR/TB, ID = 4.438" I 11027' 1_17" BKR HMC LNR HGR, ID = 4.438" 1 17" LNR, 26 #, L -80, .0383 bpf, ID = 6.276" H 11205' 1 • 11257' 144 -1/2" BKR KB LTP, ID = 2.37" 1 i ti, 11265' J_ 3.70" BTT LNR DEPLOYMENT SLV, ∎� � * ) ID = 3.00" .. ►� 11287' 143-1/2" OTIS X NIP, ID = 2.812" 1 ∎ 1 11 13 -1/2" LNR, 8.81 #, L -80 STL, .0087 bpf, ID = 2.992" 1 11607' v • P 11607' 43-1/2" X 3- 3/16" XO, ID = 2.786" 1 ■ • ' 4 -1/2" WHIPSTOCK (02/25/10) • J 11647' . '•, 1 1 1 I f MILLOUT WINDOW (C -20C) 11648' - 11656' I RA TAG (02/25/10)1-1 11648' 1 • € F:• ''.1 12700' I_ 3- 3/16" X 2 -7/8" XO, 14 -1/2" LNR, 12.6 #, L -80, .0152 bpf, ID = 3.958" H 13000' I , ID = 2.377" 133S°' CI 8P 13-3/16" LNR, 6.2 #, L -80 TCII, .0076 bpf, ID = 2.80" H 12700' ';+, /D// //2 PBTD 14314' i 1 2 -7/8" LNR, 6.4 #, L -80 STL, .0058 bpf, ID = 2.441" H 14354' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07/12/82 ORIGINAL COMPLETION 03/21/10 SWGSV GLV C/O WELL: C-20C 07/12/97 RIG SIDETRACK 1 07/08/10 WH/JMD DRLG DRAFT CORRECTIONS PERMIT No: x 2091300 08/16/00 CTD SIDETRACK (C -20B) API No: 50- 029 - 20745 -03 -00 01/25/05 RWL/TLH RWO SEC 19, T11N, R14E, 774' FNL & 1522' FEL 03/09/10 NORDIC1 CTD SIDETRACK (C -20C) 03/20/10 TLH DRLG HO CORRECTIONS 1 BP Exploration (Alaska) • • bp BP Exploration (Alaska) Inc. 0 Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 August 22, 2011 IV ' 21j �:1�id/ 4^ * : ' 4 AUG 31 2011 Mr. Tom Maunder Alaska ON O Gag Cow Commission Alaska Oil and Gas Conservation Commission 333 West 7 Avenue Ancherbga Anchorage, Alaska 99501 a o* ' Subject: Corrosion Inhibitor Treatments of GPB C -Pad Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB C- Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Gerald Murphy, at 659 -5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator • • BP Exploration (Alaska ) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) C -Pad 7/19/11 Corrosion Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # Initial top of cement pumped cement date inhibitor sealant date ft bbls ft na gal C -01A 2030100 500292012101 0.3 NA 0.3 NA 3.40 11/16/2010 C -02 1730040 500292012300 0.3 NA 0.3 NA 3.40 11/16/2010 C -03B 2051580 500292012402 0.3 NA 0.3 NA 3.40 11/16/2010 C -04B 2060570 500292012502 1.25 NA 1.25 NA 23.80 10/26/2010 C -05A 2010020 500292012601 0.8 NA 0.8 NA 3.40 11/23/2010 C -06B 2061040 500292012702 1 NA 1 NA 5.10 11/22/2010 C -07A 2000520 500292012801 0.3 NA 0.3 NA 1.70 11/22/2010 C -08B 2050110 500292012902 1 NA 1 NA 5.10 11/20/2010 C -09A 2020940 500292036601 0.1 NA 0.1 NA 0.85 11/23/2010 C -10A 2051370 500292037101 0.1 NA 0.1 NA 3.40 11/12/2010 C -11A 2030480 500292038201 0.1 NA 0.1 NA 1.70 11/13/2010 C -12B 2090850 500292038702 2 NA 2 NA 10.20 11/11/2010 C -13A 1971430 500292040401 10.7 NA 10.7 NA 74.80 11/25/2010 C -15A 2090520 500292042701 10.5 NA 10.5 NA 64.60 11/25/2010 C -16B 2060510 500292043802 45 10.0 0.6 7/19/2011 3.40 7/19/2011 C -178 2040940 500292043902 1 NA 1 NA 6.80 11/13/2010 C -18B 2090710 500292078502 9.6 NA 9.6 NA 69.70 11/23/2010 C -196 2000050 500292073502 11 NA 11 NA 76.50 10/27/2010 C -20C 2091300 500292074503 1.9 NA 1.9 NA 10.20 11/11/2010 C -21 1820810 500292074503 1.7 NA 1.7 NA 8.50 11/11/2010 C -22A 2060390 500292075801 0.7 NA 0.7 NA 5.10 11/11/2010 C -23C 2081700 500292077503 25 4.0 0.08 7/15/2011 0.85 7/19/2011 C -24A 2040580 500292081601 Sealed NA NA NA NA NA C -25B 2041090 500292081902 0.7 NA 0.7 NA 3.40 11/22/2010 C -26A 1981450 500292083401 0.8 NA 0.8 NA 3.40 11/22/2010 C -27B 2031860 500292084302 7.5 NA 7.5 NA 39.10 11/21/2010 C -28B 2100630 500292086702 1 NA 1 NA 5.10 11/21/2010 C -29A 1961700 500292147201 23 10.0 0.9 7/15/2011 6.80 7/19/2011 C -30A 2081690 500292177701 0.2 NA 0.2 NA 1.70 11/20/2010 C -31B 2030080 500292177502 0.8 NA 0.8 NA 5.10 11/22/2010 C -32C 2061390 500292155903 0 NA 0 NA 0.00 11/13/2010 C -33A 2002020 500292237301 1 NA 1 NA 6.80 11/11/2010 C -34A 2060370 500292178501 2.2 NA 2.2 NA 10.20 11/20/2010 C -35B 2061290 500292155302 1.5 NA 1.5 NA 10.20 11/15/2010 C -36A 2000020 500292179001 2 NA 2 NA 10.20 11/13/2010 C -378 2101000 500292236002 4.7 NA 4.7 NA 30.60 10/28/2010 C -38 1860660 500292157100 0.1 NA 0.1 NA 0.85 11/15/2010 C -39A 2050030 500292238301 1 NA 1 NA 0.85 11/23/2010 C -41A 2041880 500292238501 Sealed NA NA NA NA NA C -42 1930500 500292235700 2.6 NA 2.6 NA 13.60 11/13/2010 DATA SUBMITTAL COMPLIANCE REPORT 2/16/2011 Permit to Drill 2091300 Well Name /No. PRUDHOE BAY UNIT C -20C Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 20745 -03 -00 MD 14354 TVD 8904 Completion Date 3/9/2010 Completion Status 1 -OIL Current Status 1 -OIL UIC N REQUIRED INFORMATION , Mud Log No Samples No Directional Survey Yes DATA INFORMATION Types Electric or Other Logs Run: MWD DIR, GR, RES, GR / CCL / CNL (data taken from Logs Portion of Master Well Data Maint • Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH / Ty MedlFrmt Number Name Scale Media No Start Stop CH Received Comments Rpt LIS Verification 11181 14354 Open 6/8/2010 LIS Veri, GR, ROP, RAD, RAS, RPD, RPS -rE C Lis 19711 ✓Induction /Resistivity 11181 14354 Open 6/8/2010 LIS Veri, GR, ROP, RAD, RAS, RPD, RPS og Induction /Resistivity 25 Col 11647 14354 Open 6/8/2010 MD MPR, GR Log Induction /Resistivity 5 Col 11647 14354 Open 6/8/2010 TVD MPR, GR s6g Gamma Ray 25 Col 11647 14354 Open 6/8/2010 MD GR .g Gamma Ray 5 Col 11170 14354 Open 6/8/2010 Depth Shift Monitor Plot og Neutron 5 Blu 10944 14220 Case 7/15/2010 MCNL, m Lee, LL , CCL, OW GR, TFN, TNN D C Lis t989t Neutron 10932 14226 Case 7/15/2040 LIS Veri, GR, CNT • D C Asc Directional Survey 11645 14654 Open - pt Directional Survey 11645 14654 Open Well Cores /Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments 1 DATA SUBMITTAL COMPLIANCE REPORT 2/16/2011 Permit to Drill 2091300 Well Name /No. PRUDHOE BAY UNIT C-20C Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 20745 -03 -00 MD 14354 TVD 8904 Completion Date 319/2010 Completion Status 1 - OIL Current Status 1 - OIL UIC N ADDITIONAL INFORMATION r Well Cored? Y / N Daily History Received? L'../` N Chips Received? 'Y'114 Formation Tops J' Analysis Y / N 0 Received? Comments: Compliance Reviewed By: Date: 4-" 2 A- O t t I 07/13/10 Scblumberger NO. 5561 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambol! Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Mahnken ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD N -09 BCZ2 -00013 PRODUCTION PROFILE & —• larlaWj;T,1; 1 7/09/10 1 1 3- 27/M -33 BB6M -00024 PRODUCTION PROFILE ;{��Ij;Fj, 07/08/10 1 1 AY1M -00049 STATIC PRESSURE SURVEY ram>r.:vra,z, 07/10/10 1 'Ph: 1 BAUJ -00009 MCNL . " 7IMIIjjLUTj 03/07/10 1 1 W: :IN9rOruUSBmay.1rr 'gardZZ rarkir. 05/07/10 1 1 F -28A BD88 -00002 MCNL ' (ICJ - (`, ( 0 . ` 9,» -€1 _ 03/20/10 1 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Alaska Data 8 Consulting Services el Petrotechnical Data Center LR2 -1 2525 Gambol! Street, Suite 400 900 E. Benson Blvd. _C ) C Anchorage, AK 99503 -2838 JUL 1 5 2.010 GSM COM C AFICheraPe 1 • INTEQ Log & Data Transmittal Form To: State of Alaska -AOGCC 333 W. 7 Ave. Suite 100 Anchorage, Alaska 99501 Attention: Christine Mahnke ' 3 1 1 Reference: C -20C - ' Contains the following: Ancheracie 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) i u LAC Job #: 3029064 _ a 1909 -lad / Sent by: Donna Moss Date: 06/07/2010 Received by: Date: PLEASE ACKNOWLEDGE RECEIPT BY SIGNING & RETURNING OR FAXING YOUR COPY FAX: (907) 267 -6623 Baker Hughes INTEQ 7260 Homer Drive BAKER Anchorage, Alaska 99518 MORES Direct: (907) 267 -6612 INTEQ FAX: (907) 267 -6623 BAKER H11,/GHES Baker Atlas PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION (ALASKA) INC COUNTY NOK1H SLOPE BOKODUH WELL NAME C -20C STATE ALASKA FIELD PRUDHOE BAY UNIT DATE 6/7/2010 THIS DISTRIBUTION LIST AUTHORIZED BY: Donna Moss SO 4: 3029064 Copies of Copies Digital Copes of Copies Digital Each Log of Film Data Each Log of Film Data 2 Company BP EXPLORATION (ALASKA) INC 1 Company DNR - DIVISION OF OIL & GAS Person PETROTECHNICAL DATA CENTER Person CORAZON MANAOIS Address LR2- I Address 550 WEST 7TH AVE 900 E BENSON BLVD. SUITE 800 ANCHORAGE, AK 99508 ANCHORAGE, AK 99501 I 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: 3 x 09— 136 Anehmpa Page 1 of I • STATE OF ALASKA • RECEIVED - ALASKA OIL AND GAS CONSERVATION COMMISSION MAR 3 l 2010 WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: ® Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned ❑ Suspended 1b. Well twig OII& .•. Cons. COMISSkn 20AAC 25.105 2OAAC 25.110 ® Development A ,, ; ratory ❑ GINJ ❑ WINJ ❑ WAG ❑ WDSPL ❑ Other No. of Completions One ❑ Service • tr- tigraphic 2. Operator Name: 5. Date Comp., Susp., or Aband.: 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 3/9/2010 209 - 130 3. Address: 6. Date Spudded: 13. API Number: • P.O. Box 196612, Anchorage, Alaska 99519 - 6612 2/26/2010 50 - 029 - 20745 - 03 - 00 - 4a. Location of Well (Governmental Section): 7. Date T.D. Reached: 14. Well Name and Number: Surface: 3/3/2010 PBU C -20C 774' FNL, 1522' FEL, SEC. 19, T11 N, R14E, UM 8. KB (ft above MSL): 59.95' 15. Field / Pool(s): Top of Productive Horizon: 1600' FSL, 4596' FWL, SEC. 17, T11 N, R14E, UM GL (ft above MSL): 32.8' Prudhoe Bay Field / Prudhoe Bay Total Depth: 9. Plug Back Depth (MD +TVD): Oil Pool 3240' FSL, 4027' FWL, SEC. 17, T11 N, R14E, UM 14314' 8904' 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD +TVD): 16. Property Designation: Surface: x- 663843 y- 5960434 Zone- ASP4 14354' 8904' ADL 028305 TPI: x- 669898 y- 5962942 Zone- ASP4 11. SSSV Depth (MD +TVD): 17. Land Use Permit: Total Depth: x- 669289 y- 5964570 Zone- ASP4 None 18. Directional Survey: El Yes ❑ No 19. Water depth, if offshore: 20. Thickness of Permafrost (TVD): (Submit electronic and printed information per 20 MC 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 11647' 8708' 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. GRADE ' To BOTTOM To BOTTOM SIZE CEMENTING RECORD PULLED 20" x 30" Insulated Conductor Surface 110' Surface 110' 36" $ cu vds Concrete 13 -3/8" 72# L -80 Surface 2891' Surface 2660' 17 -1/2" 4466 cu ft Arcticset II 9 -5/8" 47# L -80 Surface 8990' Surface 6256' 12-1/4" 1565 cu ft Class 'G'. 167 cu ft PF 'C' 7" 29# L -80 8832' 11205' 6153' , 8338' 8 -1/2" 213 cu ft Class 'G' 4 -1/2" 12.6# L -80 11013' 11647' 8150' 8708' 6" 258 cu ft Class 'G' 3 -1/2" x X 2 8 81# i 6 2# i 64# L -80 11265' 14354' _ 8396' 8904' 4-1/4" 158 cu ft Class 'G' • „Q' 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 11017' 10823' / 7965' & MD TVD MD TVD 10961' / 8100' 12480' - 12560' 8923' - 8926' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 12750' - 12780' 8928' - 8930' 13110' - 13300' 8922' - 8921' DEPTH INTERVAL (MD)I AMOUNT AND KIND OF MATERIAL USED 13460' - 13600' 8917' - 8916' 2200' Freeze Protected w/ Diesel • 13660' - 13790' 8916' - 8913' 13840' - 14090' 8912' - 8905' 14170' - 14270' 8905' - 8904' 27. PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): March 22, 2010 Flowing Date of Test: Hours Tested: Production For OIL - BBL: GAS -MCF: WATER -BBL: CHOKE SIZE: GAS-OIL RATIO: 03/27/2010 4 Test Period ♦ 601 687 62 96 1,143 Flow Tubing Casing Press: Calculated OIL -BBL: - GAS -MCF: WATER -BBL: OIL GRAVITY-API (CORR): Press. 420 1,120 24 -Hour Rate ♦ 3,607 4,123 374 38 28. CORE DATA Conventional Core(s) Acquired? ❑ Yes IS No Sidewall Core(s) Acquired? ❑ Yes No If Yes to either question, list formations and intervals cored (MD +TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 0 ; 250.071. ci7MPLEno None ` ' ABDMS APR 012010 n Form 10 -407 Revised 12/2009 CONTINUED ON REVERSE Sj•.29 • /p l�> bmit Original Only 29. GEOLOGIC MARKERS (List all formations anrkers encountered): 30. FORMATION 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. 23SB / Zone 2B 11675' 8726' None 22TS / Zone 2BI 11763' 8776' 21 TS / Zone 2A 11886' 8832' Zone 1B 12060' 8878' TDF / Zone 1A 12358' 8916' Formation at Total Depth (Name): TDF / Zone 1A 12358' 8916' 31. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 32. I hereby certify that the foregoing is rue and correct to the best of my knowledge. � , Ll3 �1 Signed: Terrie Hubble �� Title: Drilling Technologis Date: PBU C -20C 209 -130 Prepared By NameAlumber. Terrie Hubble, 564 -4628 Well Number Permit No. / Approval No. Drilling Engineer: Wilmer Hoffman, 564 -4592 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 la: 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 1 BP EXPLORATION Page 1 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 2/21/2010 00:00 - 06:00 6.00 MOB N WAIT PRE WAIT ON WIND TO LESSEN TO OPEN CELLAR DOORS. RIG IS STILL ON K PAD. CONTINUE NEEDLE GUNNING AND PAINTING SPILL BASIN AROUND TREE AND GENERAL RIG HOUSEKEEPING. 06:00 - 06:15 0.25 MOB N WAIT PRE CREW CHANGE. MAKE RIG ROUNDS AND CHECKS. 06:15 - 18:00 11.75 MOB N WAIT PRE CONTINUE WITH RIG CLEANING AND MAINTENANCE PROJECTS. CONTINUE TO MONITOR WIND CONDITIONS. SUSTAINED WINDS ARE 25 -30. GUSTING TO 50 MPH. GPB IN PHASE 1 CONDITONS ON MAIN ROADS, LEVEL 2 ON ALL OTHER. C PAD IS VERY HEAVILY DRIFTED IN. RIG REMAINS ON K PAD. 18:00 - 00:00 6.00 MOB N WAIT PRE CONTINUE WAIT ON WIND, 25 -30 SUSTAINED, GUSTING TO 40 MPH. REMOVE C -PUMP FROM MOTOR ROOM AND REBUILD WITH NEW COMPONENTS. FUNCTION AND PRESSURE TEST IT, GOOD. 2/22/2010 00:00 - 06:00 6.00 MOB N WAIT PRE CONTINUE WAIT ON WIND. RIG IS STILL ON K PAD, UNABLE TO OPEN CELLAR DOORS SAFELY WITH 25 -40 MPH WINDS. 06:00 - 06:15 0.25 MOB N WAIT PRE CREW CHANGE. DISCUSS WEATHER. MAKE RIG CHECKS AND ROUNDS. 06:15 - 13:00 6.75 MOB N WAIT PRE CONTINUE CLEANING RIG. REVIEW PROCEDURES FOR ACCURACY AND REFLECTING CURRENT PRACTICE. 13:00 - 18:00 5.00 MOB N WAIT PRE CONTINUE TO MONITOR WIND. 25 SUSTAINED, GUSTING TO 35 -40 MPH. PAINT THE INSIDE OF THE SHAKER TROUGH GOING TO PIT #1. 18:00 - 00:00 6.00 MOB N WAIT PRE CONTINUE MONITOR WIND. NORDIC CREW CHANGE AT 20:00. AT 21:00 WIND IS SUSTAINED 20 MPH WITH 30 MPH GUST. KEEP MOVING SYSTEM HYDRAULICS WARMED UP BY ROTATING TIRES PERIODICALLY. CLEAR SNOW FROM AROUND TIRES AND CUTTINGS BOX. REMOVE OUTSIDE STAIRS FROM SECOND LEVEL. AT 22:30 WIND IS SUSTAINED 18 -20 MPH, GUSTING TO 26 MPH. 2/23/2010 00:00 - 02:00 2.00 MOB N WAIT PRE INSTALL LOUVERS ON DRILLERS SIDE RADIATOR HATCH. 02:00 - 02:40 0.67 MOB P PRE WIND IS NOW SUSTAINED 15 MPH GUSTING TO 20. PJSM WITH TP AND DRILLER, DECIDE TO OPEN DOORS AND MOVE OFF WELL. USE LOADER FOR WIND BLOCK, OPEN CELLAR DOORS. MOVE OFF WELL AND DOWN THE PAD ABOUT 100 YDS. SET DOWN RIG, INSPECT ROAD TO C PAD. 02:40 - 06:00 3.33 MOB N WAIT PRE ROAD TO C PAD IS DRIFTED SHUT. ROADS AND PADS CONTACTED, MOST LIKELY WILL BE AFTER SHIFT CHANGE BEFORE ANY EQUIPMENT IS FREE TO CLEAR IT. Printed: 3/19/2010 1:31:28 PM • BP EXPLORATION Page 2 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 2/23/2010 06:00 - 06:15 0.25 MOB N WAIT PRE CREW CHANGE. DISS OPS. MAKE RIG OUTSIDE ROUNDS AND RIG CHECKS. 06:15 - 13:00 6.75 MOB N PRE CONTINUE TO WAIT ON SNOW REMOVAL CREW TO CLEAR E PAD ACCESS ROAD AND C -PAD. 13:00 - 16:30 3.50 MOB P PRE HOLD PRE MOVE MEETING WITH SECURITY, RIG CREW. LEAVE K PAD FOR C PAD. HEAVY EQUIPMENT CLEARING ROADS AHEAD OF THE RIG. 16:30 - 20:50 4.33 MOB N WAIT PRE PULL RIG ONTO EDGE OF C -PAD WAITING ON R &P TO CLEAR ACCESS SNOW SO WE CAN SPOT THE RIG & EQUIPMENT OVER WELL ACCEPTED RIG @ 16:30 20:50 - 21:20 0.50 MOB P PRE PJSM TO SPOT RIG OVER C -20C WELL 21:20 - 00:00 2.67 RIGU P PRE MOVE RIG & SPOT OVER C -20C WELL SPOT & RU SATELITE CAMP & WELDING SHOP BERM UP AROUND CELLAR INSTALL IA & OA MONITORS INSTALL FUSABLE CAP SPOT & RU TT WITH HARDLINE 2/24/2010 00:00 - 00:15 0.25 BOPSUF P PRE PJSM TO NU BOPE 00:15 - 01:30 1.25 BOPSUF P PRE NU BOPE 01:30 - 06:00 4.50 BOPSUF P PRE PT BOPE 250 PSI LOW & 3,500 PSI HIGH, 2,500 PSI HIGH ON ANNULAR. TEST WITNESS WAIVED BY AOGCC REP L.GRIMALDI. 06:00 - 06:15 0.25 BOPSUF P PRE CREW CHANGE. DISCUSS OPERATIONS. MAKE RIG CHECKS AND OUTSIDE ROUNDS. B a 06:15 - 13:30 7.25 BOPSUF P PRE CONTINUE TO TEST BOP EQUIPMENT. TEST AS PER AOGCC REGS, DWOP POLICY, PERMIT TO DRILL, AND APPROVED WELLPLAN. RECORD TEST DATA ON NORDIC AND SLB DATA SYSTEMS. ALSO RECORD ON PAPER CHART. E -MAIL COMPLETED TEST FORM TO AOGCC. NO FAILURES NOTED. 13:30 - 15:00 1.50 BOPSUF P PRE HOLD PJSM. RIG UP DSM BPV LUBRICATOR. ENGAGE AND PULL BPV. WELL IS ON A VAC. DISPLACE REEL TO KCL. 15:00 - 15:30 0.50 WHIP P WEXIT ATTEMPT TO LOAD WELL WITH KCL. PUMP 50 BLS AT 2 BPM. NO RETURNS. 15:30 - 17:00 1.50 WHIP P WEXIT PU INJECTOR. CUT OFF HEAD. GET ON WELL. PUMP SLACK FORWARD. 4.3 BPM AT 1790 PSI. RU CUTTER. CUT 345' OF COIL AND FIND WIRE. 17:00 - 18:45 1.75 WHIP P WEXIT MU BAKER CTC 18:45 - 19:20 0.58 WHIP P WEXIT PUMP SLACK FORWARD FOR ONE COIL VOLUME 19:20 - 19:45 0.42 WHIP P WEXIT PT CTC TO 3,800 PSI PULL TEST CTC TO 36K LBS 19:45 - 20:00 0.25 WHIP P WEXIT BTT RU TOOLS ON THE CATWALK 20:00 - 20:50 0.83 WHIP N WEXIT WAIT ON SLB MEMORY FOR PIP TAGS 20:50 - 21:00 0.17 WHIP P WEXIT INSTALL PIP TAGS INTO WS 21:00 - 21:20 0.33 WHIP P WEXIT PJSM TO MU WS SETTING BHA 21:20 - 21:50 0.50 WHIP P WEXIT MU WS SETTING BHA Printed: 3/19/2010 1:31:28 PM BP EXPLORATION Page 3 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 2/24/2010 21:50 - 00:00 2.17 WHIP P WEXIT RIH WITH WS SETTING BHA 2/25/2010 00:00 - 00:45 0.75 WHIP P WEXIT RIH WITH WS SETTING BHA TO 11,330' 00:45 - 01:45 1.00 WHIP P WEXIT LOG GR FROM 11,330' TO 11,376' -11' CORRECTION RESET DEPTH TO 11,365' PU ON COIL TO GET AN UP WT PULLED 73K LOG CCL FRO 11,359' TO 11,640' 01:45 - 02:15 0.50 WHIP P WEXIT RIH TO 11,664' CLOSE EDC & PRESSURE UP TO 2,900 PSI & BROKE OVER TOWS SET @ 11,647' SET DOWN ON WS WITH 3.5K TRAY FACE AT 55L. 02:15 - 02:50 0.58 WHIP P WEXIT POH WITH WS SETTING BHA STOP @ 10,904' 02:50 - 03:20 0.50 WHIP P WEXIT LINE TO TIGER TANK FROZE STOPPED POH AS A PERCAUTION UNTIL THE LINE WAS CLEARED. 03:20 - 06:00 2.67 WHIP P WEXIT OPEN EDC POH WITH WS SETTING BHA CLOSE EDC @ 500' 06:00 - 06:15 0.25 WHIP P WEXIT CREW CHANGE. DISCUSS OPS. MAKE RIG CHECKS AND ROUNDS. TAG UP AT SURFACE. PJSM FOR HANDLING THE BHA. 06:15 - 07:15 1.00 WHIP P WEXIT GET OFF WELL. UNSTAB COIL. LD BHA TOOLS. BTT SETTING TOOL LOOKS NORMAL. MU MILLING BHA WITH 2 JTS PH -6. REMOVE DGT TO REDUCE TOOL EXPOSURE TO VIBRATION. 07:15 - 09:00 1.75 STWHIP P WEXIT FOUND AN ICE PLUG BELOW WELL HEAD. MU NOZZLE BHA. JET THROUGH SAME. NOTE ALOT OF FINE METAL SHAVINGS IN RTNS. 09:00 - 09:30 0.50 STWHIP P WEXIT MU WINDOW MILLING BHA. 109.31 OAL STAB COIL. TEST TOOLS. GET ON WELL. 09:30 - 11:00 1.50 STWHIP P WEXIT RUN IN HOLE. CIRC AT MIN RATE THROUGH MILL. 11:00 - 15:00 4.00 STWHIP P WEXIT TAG WHIPSTOCK AT 11,647'. eiA 53K# UP WT, 14 K# DN WT. CONTINUE DISPLACEMENTTO USED GEOVIS FLUID. MILL AHEAD FROM 11,647'. 3010 PSI FS AT 2.51 BPM IN /OUT. DHWOB: 1 -1.5K# TIME MILL AT 6 MINUTES PER 1 /10TH FT. 15:00 - 00:00 9.00 STWHIP P WEXIT CONTINUE TO MILL WINDOW FROM 11,648.8' 3010 PSI FS. 200 -300 PSI MOTOR WORK. BHP: 4637 PSI ECD: 10.4 PVT: 328 BBLS. EXTEND TIME INCREMENT TO KEEP DHWOB BELOW 3K #. 18:00 = 11,651', 300 PSI MTR WK, 1.8K WOB, 10.47 ECD 20:00 = 11,653', 300 PSI MTR WK, 1.4K WOB, 10.45 ECD r(t) 21:00 = 11,654', 250 PSI MTR WK, 3K WOB, 10.46 ECD 22:00 = 11,655', 300PSI MTR WRK, 1.2K WOB 10.46 ECD 23:00 = 11,656', 300PSI MTR WK, 1.9K WOB, 10.45 ECD FINISHED WINDOW DRILLING 10' OF RAT HOLE 00:00 = 11,658', 500PSI MTR WK, 2.4K WOB, 10.47 ECD 2/26/2010 00:00 - 02:15 2.25 STWHIP P WEXIT CONTINUE MILLING WINDOW / RAT HOLE Printed: 3/19/2010 1:31:28 PM • BP EXPLORATION Page 4 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 2/26/2010 00:00 - 02:15 2.25 STWHIP P WEXIT FS 2,800PSI © 2.5BPM 00:35 = 11,659', 500PSI MTR WK, 2.7K WOB, 10.46 ECD MILL RAT HOLE TO 11,664' 02:15 - 05:30 3.25 STWHIP P WEXIT MAKE 3 CLEANOUT PASSES THROUGH WINDOW SHUT OFF PUMPS & DRY DRIFT WINDOW RIH TO TD, DRIFT WAS SMOOTH BTMS UP SAMPLE SHOWED FORMATION. PYRITE AND CHERT NOTED IN SAMPLE. 05:30 - 06:15 0.75 STWHIP P WEXIT OPEN EDC & POOH 2.71 BPM OUT RATE AT 2399 PSI 06:15 - 06:30 0.25 STWHIP P WEXIT CREW CHANGE. DISCUSS OPS. MAKE RIG CHECKS AND OUTSIDE ROUNDS. 06:30 - 07:30 1.00 STWHIP P WEXIT CONTINUE TO CIRCULATE OUT OF HOLE. JOG TO 500' TWICE DUE TO LARGE AMOUNT OF METAL SHAVINGS. HOLD PJSM TO DISCUSS HANDLING BHA. 07:30 - 08:30 1.00 STWHIP P WEXIT LD INTEQ BHA. MU SWIZZLE NOZZLE. 08:30 - 09:00 0.50 STWHIP P WEXIT GET ON WELL. JET OUT BOPS AT 3 BPM. MAKE SEVERAL PASSES. 09:00 - 10:00 1.00 DRILL P PROD1 MU DRILLING BUILD BHA. 1.5 DEG AKO WITH HYCALOG TREX BICENTER BIT. INCLUDE RESISTIVITY TOOL. OAL: 78.96' 10:00 - 12:00 2.00 DRILL P PROD1 RUN IN HOLE. CRC AT MIN RATE. 12:00 - 14:00 2.00 DRILL P PROD1 LOG GR TIE IN FROM 11,150' TO 11,370' SUBTRACT 10' CORRECTION. 14:00 - 16:30 2.50 DRILL P PROD1 RUN IN HOLE. TAG BTM AT 11,668',. WINDOW VERY SMOOTH. DRILL AHEAD FROM 11,668'. 3010 PSI FS AT 2.52 BPM IN /OUT. BHP: 4667 PSI ECD: 10.37 PPG. PVT: 313 BBLS. IA: 244 PSI OA: 88 PSI. CONTINUE TO DRILL AHEAD SLOWLY. ROP: 10 -20 FPH WITH STALLS. DHWOB: 0.5 - 1.0 K# LOG RA TAG AT 11,658'. TOP WINDOW: 11,648' BOTTOM WINDOW: 11,656'. TRAY FACE AT 55L. 16:30 - 00:00 7.50 DRILL P PROD1 DRILL AHEAD FROM 11,715'. 2,700 PSI FS AT 2.55 BPM IN /OUT. DRILL TO 11,750'. WIPER TO WINDOW DURING CREW CHANGE CO 18:00 CONTINUE DRILLING AHEAD FROM 11,750' 20:30 = 11,769', 300 PSI MTR WK, 1.8K WOB, ECD 10.35 21:30 = 11,787', 300 PSI MTR WK, 1.1K WOB, ECD 10.36 STALL © 11,795', 11,797' 22:30 = 11,799', 300 PSI MTR WK, .3K WOB, ECD 10.36 23:30 = 11,826', 400 PSI MTR WK, .7K WOB, ECD 10.38 DRILL TO 11,830' 2/27/2010 00:00 - 03:50 3.83 DRILL P PROD1 CONTINUE DRILLING BUILD FROM 11,830' FS 2,800PSI © 2.6 BPM 01:00 = 11,846', 500 PSI MTR WK, 1.1K WOB, ECD 10.36 02:00 = 11,862', 500 PSI MTR WK, 1.4K WOB, ECD 10.38 Printed: 3/19/2010 1:31:28 PM 1 BP EXPLORATION Page 5 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 2/27/2010 00:00 - 03:50 3.83 DRILL P PROD1 STALL @ 11,884' DROPPED PR TO 2.4BPM & 2,700 PSI 03:20 = 11,893', 300 PSI MTR WK, 1.5K WOB, ECD 10.33 STALL @ 11,895' DRILL TO 11,900' AVG ROP 17.9 FPH 03:50 - 04:10 0.33 DRILL P PROD1 WIPER TRIP TO WINDOW 04:10 - 04:40 0.50 DRILL P PROD1 DRILL AHEAD FROM 11,900' FS 2,900 PSI a 2.6 BPM DRILL TO 11,909' 04:40 - 06:00 1.33 DRILL P PROD1 POOH TO 11,629' & OPEN EDC CONTINUE TO POH 06:00 - 06:15 0.25 DRILL P PROD1 CREW CHANGE. DISCUSS OPS. MAKE RIG CHECK AND ROUNDS. -38 TEMP LIMITS OUTSIDE WORK AND LOADER OPS. 06:15 - 07:00 0.75 DRILL P PROD1 CONTINUE TO POOH. JOG AT SURFACE. CLOSE EDC. HOLD PJSM TO DISCUSS HANDLING BHA. 07:00 - 08:15 1.25 DRILL P PROD1 CHECK FOR FLOW. GET OFF WELL. UNSTAB COIL. LD TOOLS. ADJUST MOTOR AKO FROM 1.5 TO 1.2 DEG. BIT:GRADED 4 -3 -I. MU BHA. RUN A HYC SRR3211M -C2 REBUILD BIT. STAB COIL. TEST TOOLS. GET ON WELL. 08:15 - 10:30 2.25 DRILL P PROD1 RIH CIRC AT MIN RATE. CHECK HP SCREENS. (CLEAN) 10:30 - 11:00 0.50 DRILL P PROD1 LOG GR TIE IN FROM 11,350'. SUBTRACT 10' CORRECTION. 11:00 - 14:45 3.75 DRILL P PROD1 DRILL AHEAD FROM 11,909'. 3005 PSI FS AT 2.51 BPM IN /OUT. 150 -300 PSI MTR WORK. DHWOB: 2.0 -2.5 K #. ROP: 25 -65 FPH. BHP: 4750 PSI. ECD: 10.4 PPG. PVT: 320 BBLS IA: 32 PSI. OA: 0 PSI. ALTERNATING HARD AND SOFT SPOTS. DRILL TO 12,071 14:45 - 15:15 0.50 DRILL P PROD1 MAKE WIPER TRIP TO WINDOW. 3120 PSI FS AT 2.49 BPM IN. HOLE SMOOTH. PUMP PRESSURE SURGING. BIT APPEARS TO BE PLUGGING OR MOTOR CHUNKING. 15:15 - 18:20 3.08 DRILL P PROD1 PULL ABOVE WINDOW. OPEN EDC. CIRCULATE OUT OF HOLE. JOG 500' AFTER GETTING TO SURFACE CREW CHANGE & PJSM TO SWAP MTR WHILE JOGGING 18:20 - 19:10 0.83 DRILL P PROD1 LD BHA & SWAP MTR WITH 1.5 DEG MTR STAB ON TO WELL TEST TOOLS @ SURFACE 19:10 - 21:20 2.17 DRILL P PROD1 RIH TO 11,690' 21:20 - 21:35 0.25 DRILL P PROD1 LOG TIE IN FROM 11,690' TO 11,711' -10' CORRECTION Printed: 3/19/2010 1:31:28 PM 4 BP EXPLORATION Page 6 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 2/27/2010 21:20 - 21:35 0.25 DRILL P PROD1 RESET DEPTH TO 11,701' 21:35 - 21:50 0.25 DRILL P PROD1 RIH TO TD TAG TD @ 12,073 21:50 - 00:00 2.17 DRILL P PROD1 DRILL AHEAD FROM 12,073' FS 3,150 PSI @ 2.6 BPM STALL @ 12,086' DROPPED PR, FS 2,950 @ 2.4 BPM 23:00 = 12,087', 50 PSI MTR WK, 1.4K WOB, 10.42 ECD DRILL TO 12,126 2/28/2010 00:00 - 02:00 2.00 DRILL P PROD1 DRILL AHEAD FROM 12,126 FS 2,800 PSI @ 2.4 BPM 01:00 = 12,162', 200 PSI MTR WK, .8K WOB, ECD 10.46 DRILL TO 12,200' AVG ROP 37 FPH 02:00 - 02:50 0.83 DRILL P PROD1 WIPER TRIP TO WINDOW START TO SWAP TO NEW GEO -VIS 02:50 - 06:00 3.17 DRILL P PROD1 DRILL AHEAD FROM 12,200' FS 2,900 PSI @ 2.5 BPM 03:10 = 12,209', 250 PSI MTR WK, .6K WOB, ECD 10.51 NEW MUD @ BIT FS 2,650 PSI CO 2.6 BPM 04:00 = 12,234', 200 PSI MTR WK, 1K WOB, ECD 10.09 05:00 = 12,286', 200 PSI MTR WK, 1.5K WOB, ECD 9.9 FS 2,800 PSI @ 2.7 BPM 06:00 = 12,311', 250 PSI MTR WK, 3K WOB, ECD 9.94 CREW CHANGE @ 06:45 06:00 - 07:00 1.00 DRILL P PROD1 MAKE WIPER TRIP TO WINDOW. 2370 PSI FS AT 2.48 BPM IN. PVT: 328 BBLS. CREW CHANGE. DISCUSS OPS. MAKE RIG CHECKS AND ROUNDS. 07:00 - 11:00 4.00 DRILL P PROD1 DRILL AHEAD FROM 12,350. 2406 PSI FS AT 2.50 BPM IN /OUT. 150 -300 PSI MTR WORK. DHWOB: 2.5 -3.0K# BHP: 4570 PSI. ECD: 10.0 PPG. PVT: 330 BBLS. IA/OA: 129 PSI / 93 PSI. ROP: 30 -70 FPH. FORMATION AFFECTING INCLINATION. 11:00 - 11:45 0.75 DRILL P PROD1 WIPER TRIP TO WINDOW. HOLE SMOOTH 11:45 - 12:00 0.25 DRILL P PROD1 LOG GR TIE IN. ADD 5' CORRECTION. 12:00 - 15:15 3.25 DRILL P PROD1 DRILL AHEAD FROM 12,500' 2810 PSI FS AT 2.6 BPM IN /OUT. DHWOB: UP TO 5K# ROP: 50 -100 FPH. 15:15 - 16:15 1.00 DRILL P PROD1 WIPER TRIP TO WINDOW. 2775 PSI FS AT 2.56 BPM IN. PVT: 336 BBLS. 16:15 - 19:15 3.00 DRILL P PROD1 DRILL AHEAD FROM 12,650' TO 12,744' UNABLE TO COMLPETE BUILD WITH THS ANGLE OF MOTOR 19:15 - 22:25 3.17 DRILL P PROD1 POOH TO ABOVE WINDOW OPEN EDC & CONTINUE TO POH PJSM TO LD BHA, CUT COIL & REHEAD UQC WHILE POH 22:25 - 22:40 0.25 DRILL P PROD1 LD BHA Printed: 3/19/2010 1:31:28 PM • BP EXPLORATION Page 7 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 2/28/2010 22:40 - 23:15 0.58 DRILL P PROD1 CUT 53' OF COIL FOR CHROME PIPE MANAGEMENT 23:15 - 00:00 0.75 DRILL P PROD1 MU CTC 3/1/2010 00:00 - 02:00 2.00 DRILL P PROD1 MU CTC 02:00 - 02:15 0.25 DRILL P PROD1 PJSM TO MU BUILD BHA WITH 2.2 DEG MTR & 3.75" GAUGED BIT 02:15 - 02:40 0.42 DRILL P PROD1 MU BUILD BHA WITH 2.2 DEG MTR & 3.75" GAUGED BIT 02:40 - 05:50 3.17 DRILL P PROD1 TEST TOOLS @ SURFACE RIH TO 12,690' & LOG TIE IN TO 11,711' -11' CORRECTION, RESET DEPTH TO 11,700' CONTINUE TO RIH TO TD 05:50 - 06:15 0.42 DRILL P PROD1 DRILL AHEAD FROM 12,744' FS 2,650 PSI @ 2.6 BPM 06:15 - 06:30 0.25 DRILL P PROD1 CREW CHANGE. DISCUSS OPS. MAKE RIG ROUNDS AND CHECKS. CONTINUE TO DRILL AHEAD. 06:30 - 08:45 2.25 DRILL P PROD1 DRILL AHEAD12,755'. 2950 PSI FS AT 2.57 BPM IN /OUT. 200 PSI MTR WORK. DH W OB: 3 -4K #. BHP: 4667 PSI. ECD: 10.13 PPG. PVT: 330 BBLS. IA: 110 PSI. OA: 4 PSI. ROP: 90 -100 FPG. 08:45 - 09:45 1.00 DRILL P PROD1 WIPER TRIP TO WINDOW. HOLE SMOOTH. 2417 PSI AT 2.63 BPM IN. PVT: 325 BBLS. 09:45 - 13:30 3.75 DRILL P PROD1 DRILL AHEAD FROM 12,950'. GETTING 25 -30 DEG DOG LEGS. DISCUSS PLAN WITH TOWN. NEED TO COME UP 8 TVD FT TO 8865'. DECIDE TO LEAVE BHA IN HOLE TO DRILL BACK THROUGH "HARD INTERVAL ". DRILL TO 13,100'. PROJECT TVD: 8865'. 13:30 - 16:00 2.50 DRILL P PROD1 WIPER TRIP TO WINDOW. OPEN EDC. CIRCULATE OUT OF HOLE. 2140 PSI AT 2.75 BPM IN. HOLD PJSM TO DISCUSS HANDLING BHA. JOG IN HOLE 500'. 16:00 - 17:00 1.00 DRILL P PROD1 GET OFF WELL. UNSTAB COIL. LAY DOWN BHA. MU RIB STEER MOTOR WITH HCC HCD 304Z 3.75" BIT. STAB COIL. TEST TOOLS. GET ON WELL. 17:00 - 20:15 3.25 DRILL P PROD1 RUN IN HOLE. CIRC AT MIN RATE. LOG TIE IN FROM 11,690' TO 11,706' -10' RESET DEPTH TO 11,696' CONTINUE TO RIH TO TD 20:15 - 21:50 1.58 DRILL P PROD1 DRILL AHEAD WITH RIB -STEER FROM 13.100' FS 2,650 PSI 4 2.4 BPM 21:00 = 13,176', 300 PSI MTR WK, 5K WOB, ECD 10.33 DRILL TO 13,250' AVG ROP 80 FPH 21:50 - 23:30 1.67 DRILL P PROD1 WIPER TO WINDOW WORK THROUGH TIGHT SPOT @ 13,005' WITH 15K OVERPULL 23:30 - 00:00 0.50 DRILL P PROD1 DRILL AHEAD FROM 13,250' Printed: 3/19 /2010 1:31:28 PM • BP EXPLORATION Page 8 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 3/1/2010 23:30 - 00:00 0.50 DRILL P PROD1 FS 3,000 PSI CO 2.7 BPM 23:45 = 13,267', 300 PSI MTR WK, 1.6K WOB, ECD 10.35 3/2/2010 00:00 - 03:30 3.50 DRILL P PROD1 DRILL AHEAD FROM 13,275' FS 3,100 PSI O 2.7 BPM 01:00 = 13,349', 300 PSI MTR WK, 1.4K WOB, 10.45 ECD 02:00 = 13,359', 600 PSI MTR WK, 4.6K WOB, 10.46 ECD START MUD SWAP © 02:00 HAVING TO KEEP HIGH WOB TO MAINTAIN MTR WK 03:00 = 13,377', 350 PSI MTR WK, 5K WOB, 10.19 ECD DRILL TO 13,400' AVG ROP 41 FPH 03:30 - 06:00 2.50 DRILL P PROD1 WIPER TRIP TO WINDOW 06:00 - 06:15 0.25 DRILL P PROD1 CREW CHANGE. DISCUSS OPS. MAKE RIG ROUNDS AND CHECKS. CONTINUE DRILLING AHEAD. 06:15 - 08:15 2.00 DRILL P PROD1 DRILL AHEAD FROM 13,400' FS 2,800 PSI AT 2.5 BPM IN /OUT. 200 -350 PSI MTR WORK. DHWOB: 3 -4K #. WT TRANSFER IS GOOD. BHP: 4615 PSI. ECD: 10.03 PPG. PVT: 332 BBLS. IA: 200 PSI. OA: 132 PSI 08:15 - 10:30 2.25 DRILL P PROD1 WIPER TRIP TO WINDOW. 2802 PSI AT 2.56 BPM IN. HOLE SMOOTH. 10:30 - 11:00 0.50 DRILL P PROD1 DRILL AHEAD FROM 13,551'. 2780 PSI FS AT 2.49 BPM IN /OUT. HOLE STICKY NEAR BTM. 11:00 - 11:45 0.75 DRILL P PROD1 WIPER TRIP TO 12600'. HOLE SMOOTH. 2800 PSI AT 2.54 BPM IN. 11:45 - 13:15 1.50 DRILL P PROD1 DRILL AHEAD FROM 13,625' TO 13,701'. 13:15 - 16:45 3.50 DRILL P PROD1 WIPER TRIP TO WINDOW. 2830 PSI AT 2.52 BPM IN. 16:45 - 17:45 1.00 DRILL P PROD1 DRILL AHEAD FROM 13,701' TO 13,765' MOTOR PLUGGED OFF 17:45 - 20:30 2.75 DRILL N DFAL PROD1 POH TO CHECK BHA PJSM TO LD BHA WHOLE POH 20:30 - 20:55 0.42 DRILL N DFAL PROD1 LD BHA BIT HAS 2 NOZZLES PLUGGED WITH RUBBER FROM THE MOTOR MOTOR IS SIEZED & WILL NOT TURN 20:55 - 21:10 0.25 DRILL N DFAL PROD1 RU NEW RIB STEER ASSY ON CATWALK FUNCTION TEST BOPE & CHECK HP FILTERS WHILE TOOLS ARE BEING RU ON CATWALK 21:10 - 21:20 0.17 DRILL N DFAL PROD1 PJSM TO PU NEW BHA 21:20 - 21:50 0.50 DRILL N DFAL PROD1 PU BHA WITH NEW RIB -STEER MOTOR 21:50 - 00:00 2.17 DRILL N DFAL PROD1 TEST TOOLS © SURFACE RIH TO 11,695' & LOG TIE IN TO 11,706' -10' CORRECTION, RESET DEPTH TO 11,696' CONTINUE TO RIH TO TD 3/3/2010 00:00 - 01:15 1.25 DRILL N DFAL PROD1 RIH TO TD 01:15 - 03:00 1.75 DRILL P PROD1 DRILL AHEAD_FROM 13,765' FS 2,750 PSI © 2.5 BMP 02:00 = 13,825', 400 PSI MTR WK, 2.7K WOB, 10.26 ECD 03:00 = 13,900', 500 PSI MTR WK, 2.7K WOB, 10.35 ECD Printed: 3/19/2010 1:31:28 PM • I BP EXPLORATION Page 9 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 3/3/2010 03:00 - 05:50 2.83 DRILL P PROD1 WIPER TO WINDOW 05:50 - 08:00 2.17 DRILL P PROD1 DRILL AHEAD FROM 13,900' FS 2,850 PSI @a 2.5 BPM DRILL TO 14,075' ROP AND WOB GOOD. 08:00 - 10:00 2.00 DRILL P PROD1 WIPER TRIP TO WINDOW. 2732 PSI AT 2.47 BPM IN. PVT: 297 BBLS. 10:00 - 12:30 2.50 DRILL N SFAL PROD1 POH ABOVE WINDOW TO REPAIR LEAKING TRACTION CYLINDER ON SLB INJECTOR. 12:30 - 13:00 0.50 DRILL P PROD1 TIE IN AT 11,680' . CORRECTION +8' 13:00 - 14:00 1.00 DRILL P PROD1 RIH TO TD TO RESUME DRILLING 14:00 - 16:00 2.00 DRILL P PROD1 DRILL AHEAD FROM 14,075' 2.60/2.46 6 3240 PSI. DHWOB = 3K. PVT = 297 BBLS. DRILL TO 14,225' 16:00 - 19:00 3.00 DRILL P PROD1 WIPER TRIP TO WINDOW 19:00 - 20:30 1.50 DRILL P PROD1 DRILL AHEAD FROM 14,225' 2.58/2.52 © 3,000 PSI. DHWOB = 3K. PVT = 286 BBLS. rD DRILL TO TD © 14,350', 20:30 - 22:15 1.75 DRILL P PROD1 PU TO WINDOW 22:15 - 00:00 1.75 DRILL P PROD1 LOG TIE IN FROM 11,680' TO 11,688' +7.5' CORRECTION REST DEPTH TO 11,696' RIH TO CONFIRM TD TAG © 13,354' 3/4/2010 00:00 - 03:15 3.25 DRILL P PROD1 POOH TO ABOVE WINDOW 1 TIGHT SPOT © 13,400' OPEN EDC CONTINUE TO POH TO SURFACE PJSM TO LD BHA WHILE POH 03:15 - 03:45 0.50 DRILL P PROD1 LD BHA 03:45 - 04:00 0.25 DRILL P PROD1 PJSM TO CONDUCT SLACK MANAGEMENT & CUT COIL. 04:00 - 05:30 1.50 DRILL P PROD1 CONDUCT SLACK MANAGEMENT PUMPED SLACK FROM COIL & CUT 283' OF E -LINE RU CT CUTTER & CUT 50' OF COIL 05:30 - 05:45 0.25 DRILL P PROD1 PJSM TO MU CTC 05:45 - 06:30 0.75 DRILL P PROD1 MU, PULL & PRESSURE TEST CTC 06:30 - 06:45 0.25 DRILL P PROD1 PJSM FOR DROPPING 3/4" BALL AND LOTO OF REEL 06:45 - 07:30 0.75 DRILL P PROD1 PUMP 3/4" STEEL BALL FOR DRIFT OF COIL. RECOVER 3/4" STEEL BALL. 07:30 - 08:00 0.50 CASE P RUNPRD CLEAR FLOOR AND PREP FOR LINER RUNNING 08:00 - 08:15 0.25 CASE P RUNPRD PJSM REGARDING RUNNING LINER. DISCUSS PINCH POINTS, MUSTER AREA AND MENTORING NEW HAND. 08:15 - 15:45 7.50 CASE P RUNPRD BFGIN DEPLQYING._TAPERED PRODUCTION LINER. 15:45 - 19:30 3.75 CASE P RUNPRD RIH WITH LINER RAN INTO HARD SPOT CO 14,014' WORK PIPE 10 - 15 TIMES © 14,014' WITH NO LUCK WITH 85K PU WT CIRCULATE HOLE © .9 BPM & 1,900 PSI WORK PIPE 8 - 10 TIMES © 14,009' WITH NO LUCK WITH 85K PU WT Printed: 3/19/2010 1:31:28 PM • BP EXPLORATION Page 10 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 3/4/2010 15:45 - 19:30 3.75 CASE P RUNPRD CIRCULATE HOLE 0 1 BPM & 2,000 PSI RIH TO 14,066' & WORK TIGHT SPOT RIH TO 14,106' & WORK TIGHT SPOT RIH TO 14,124' & WORK TIGHT SPOT RIH TO 14,138' & WORK TIGHT SPOT RIH TO 14,181' & WORK TIGHT SPOT RIH TO 14,219' & WORK TIGHT SPOT RIH TO 14,231' & WORK TIGHT SPOT RIH TO 14,338' & WORK TIGHT SPOT PU TO 14,314' SEVERAL PEANUTS BROKE OFF INJECTOR CHAIN 19:30 - 00:00 4.50 CASE N SFAL RUNPRD REPAIR ON INJECTOR CHAIN REPLACE TRACTION CYLINDER 3/5/2010 00:00 - 00:45 0.75 CASE N SFAL RUNPRD CONTINUE REPAIRS TO INJECTOR 00:45 - 01:00 0.25 CASE P RUNPRD CONTINUE TO WORK LINER TO TD 01:00 - 01:30 0.50 CASE N SFAL RUNPRD REPAIR INJECTOR CHAIN 01:30 - 02:00 0.50 CASE P RUNPRD RIH TO TD @ 14,355' UNCORRECTED 02:00 - 03:00 1.00 CASE P RUNPRD PU TO BALL DROP POSITION LOAD 5/8" STEEL BALL INTO COIL LAUNCH BALL WITH 1,700 PSI BALL ON SEAT @ 50 BBLS SHEARED PIN @ 4,600 PS1 PU 4' WT BO @ 46K 03:00 - 04:45 1.75 CASE P RUNPRD DISPLACE WELL TO KCL PJSM WITH CEMENT CREW FOR SPOTTING TRUCKS & RIGGING UP WHILE CIRCULATING 04:45 - 06:00 1.25 CASE P RUNPRD RU CEMENTERS 06:00 - 07:00 1.00 CASE P RUNPRD CREW CHANGE 07:00 - 07:30 0.50 CASE P RUNPRD PJSM WITH CEMENTERS AND RIG CREW. 07:30 - 14:00 6.50 CASE N SFAL RUNPRD DECIDE TO INSPECT COILED TUBING INJECTOR. SLB COILED TUBING MECHANICS ON LOCATION. CONDUCT PJSM WITH SLB MECHANICS AND SLB COILED TUBING SUPERVISOR. 14:00 - 14:30 0.50 CASE P RUNPRD CONDUCT PJSM WITH CEMENT CREW AND RIG CREW. DISCUSS MUSTER AREA, HIGH WINDS AND THE OBLIGATION TO STOP THE JOB. 14:30 - 15:00 0.50 CASE P RUNPRD BEGIN BATCHING UP CEMENT AND PRESSURE TEST OF, CEMENT LINES. _. 15:00 - 16:45 1.75 CASE P RUNPRD CEMENT AT WEIGHT. LINE UP TO PUMP CEMENT DOWN COIL. CEMENT THICKENING TIME = 4:15 STAGE 1, 28.2 BBLS 15.8 CLASS G CEMENT 10 BBLS AWAY = 2.3 BPM, 2106 PSI 15 BBLS AWAY = 2.3 BPM, 3342 PSI 25 BBLS AWAY = 2.3 BPM, 3319 PSI 28.2 BBLS AWAY, STOP PUMPING AND ISOLATE TREATING LINE FROM CEMENTERS. STAGE 2, 2# BIOZAN DISPLACEMENT. Printed: 3/19 /2010 1:31:28 PM • BP EXPLORATION Page 11 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 3/5/2010 15:00 - 16:45 1.75 CASE P RUNPRD 10 BBLS = 2040 PSI AT 2.0 BPM 15 BBLS = 1846 PSI AT 2.0 BPM 25 BBLS = 623 PSI AT 2.0 BPM 50 BBLS = 1110 PSI AT 1.5 BPM 54.9 BBLS. SHUT DOWN PUMPING WITH 2 BBLS CEMENT LEFT IN COIL AND PH6. PUH 13 FEET PAST BREAKOVER AND SET BACK DOWN. SET DOWN NOTED 10' HIGHER AT 14344'. PRESSURE UP TO 500 PSI WITH .2 BBLS PU COIL 1 FOOT AND NOTE PRESSURE BLEED OFF. EXHAUST 2 BBLS CEMENT PLUS 3 BBLS BIOZAN. OPEN BAKER CHOKE AND SET 10K BACK DOWN. CLOSE BAKER CHOKE AND PUMP DOWN COIL TO SHEAT LWP. SAW LINER WIPER PLUG BUMP AT 20.6 BBLS. PRESSURED UP ADDTIONAL 700 PSI. TESTED FLOATS(GOOD). UNSTING FROM LINER AND PUMP 5 BBLS BIOZAN AT MINIMUM RATE ON TOP OF LINER. 16:45 - 19:30 2.75 CASE P RUNPRD POOH TO PU CLEAN OUT /LOGGING BHA PJSM TO LD LINER RUNNING BHA WHILE POH 19:30 - 20:15 0.75 CASE P RUNPRD UNSTAB INJECTOR & LD LINER RUNNING BHA 20:15 - 20:30 0.25 CASE P RUNPRD PJSM TO JET STACK 20:30 - 21:00 0.50 CASE P RUNPRD STAB INJECTOR & JET STACK 21:00 - 21:45 0.75 CASE P RUNPRD ALIGN INJECTOR CHAIN TRACK PJSM WITH CREW TO MU MCNL / CLEANOUT ASSY WHILE SLB MECHANICS REPAIRED INJECTOR 21:45 - 00:00 2.25 CASE P RUNPRD MU MCNL / CLEANOUT ASSY CHECKING EVERY CONNECTION WHILE RIH WHILE SLB MECHANICS REPAIR INJECTOR 3/6/2010 00:00 - 01:15 1.25 CASE P RUNPRD MU MCNL / CLEANOUT ASSY CHECKING EVERY CONNECTION ON CSH WHILE RIH 01:15 - 01:45 0.50 CASE P RUNPRD RIH FOR MCNL / CLEANOUT RUN RIH 200' PRESSURED UP TO 2,500 PSI TOOLS SEEM TO BE PLUGGED OFF 01:45 - 02:15 0.50 CASE P RUNPRD POH TO SURFACE PJSM TO PULL BHA & CHECK TOOLS 02:15 - 06:30 4.25 CASE N DPRB RUNPRD STAND BACK CSH IN DERRICK LD & INSPECT TOOLS TOOLS FOUND PACKED OFF WITH SCALE/RUST ABOVE MCNL CARRIER 06:30 - 06:45 0.25 CASE N DPRB RUNPRD OFF LOAD MEMORY TOOLS AND HAVE PJSM FOR CLEARING THE RIG FLOOR. 06:45 - 08:30 1.75 CASE N WAIT RUNPRD PREP TO BLOW BACK COILED TUBING. BEGIN RIG MAINTENANCE 08:30 - 14:45 6.25 CASE N WAIT RUNPRD STANDBY FOR CHECK 6 ROLL OUT. CONTINUE RIG MAINTENANCE. 14:45 - 21:00 6.25 CASE N WAIT RUNPRD CHECK 6 MEETING @ BOC 21:00 - 22:30 1.50 CASE N DPRB RUNPRD CREW CHANGE OUT RIG CHECK BY ON COMING CREW PJSM TO MU & RUN MCNL / CLEANOUT RUN 22:30 - 00:00 1.50 CASE N DPRB RUNPRD MU & RUN MCNL / CLEANOUT BHA _ 3/7/2010 00:00 - 03:15 3.25 EVAL N DPRB LOWER1 MU MCNL / CLEANOUT BHA CIRCULATE @ STAND 12 CIRCULATE @ STAND 31 Printed: 3/19/2010 1:31:28 PM • BP EXPLORATION Page 12 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 3/7/2010 03:15 - 05:15 2.00 EVAL P LOWER1 RIH FOR MCNL CLEANOUT RUN 05:15 - 07:30 2.25 EVAL P LOWER1 LOG MCNL @ 30 FPM FROM 11,000' TO PBTD @ 14303' STOP COUNT @ 14288' PER MEMORY LOGGER AND BEGIN LAYING IN PERF PILL PAINT EOP FLAG AT 14000' (WHITE) 07:30 - 11:00 3.50 EVAL P LOWER1 POOH LAYING IN PERF PILL. PARK COIL AT 10875' AND LAUNCH 1/2" BALL TO OPEN CIRC SUB. BALL SEAT SHEARED AT 3000 PSI. 11:00 - 11:45 0.75 EVAL N SFAL LOWER1 INSPECT AND REPAIR SLB INJECTOR 11:45 - 13:45 2.00 EVAL P LOWER1 CONTINUE POOH PUMPING 2.3 BPM. CONDUCT PJSM WITH RIG CREW. 13:45 - 15:30 1.75 EVAL P LOWER1 OOH. BEGIN STANDING BACK CS HYDRIL. 15:30 - 16:00 0.50 EVAL P LOWER1 PJSM TO RECOVER AND LAY DOWN MCNL TOOLS WITH SOURCE. 16:00 - 17:30 1.50 EVAL P LOWER1 CHECK FOR LOGGING DATA AND PREP TO LOAD PERFORATING GUNS IN PIPE SHED. LOGGING DATA GOOD. CONTINUE LOADING PERFORATING GUNS IN PIPE SHED. 17:30 - 19:00 1.50 EVAL N SFAL LOWER1 REPAIR COILED TUBING INJECTOR 19:00 - 21:00 2.00 EVAL P LOWER1 STAB ON INJECTOR & JET STACK 21:00 - 22:00 1.00 EVAL P LOWER1 LINER _ LAP TEST , PRESSURE UP TO 2,000 PSI PRESSURE BLED OFF TO 1,550 PSI IN 15 MIN BLED OFF PRESSURE PRESSURE UP TO 2,000 PSI PRESSURE BLED OFF TO 1,650 PSI IN 10 MIN BLED OFF PSI 22:00 - 22:45 0.75 EVAL P LOWER1 PJSM TO PU & RUN PERF GUNS 22:45 - 00:00 1.25 EVAL P LOWER1 PU & RUN PERF GUNS @ gun 23 0 00:00 3/8/2010 00:00 - 03:30 3.50 EVAL P LOWER1 MU & RUN PERF GUNS 03:30 - 03:45 0.25 EVAL P LOWER1 PJSM TO MU CSH 03:45 - 05:15 1.50 EVAL P LOWER1 MU 42 JTS OF CSH TO PERF BHA 05:15 - 09:00 3.75 EVAL P LOWER1 RIH WITH_PERF BHA - 11:15 2.25 PERFOB P LOWER1 DISCUSS SLB TCP PROCEDURE FOR NEW E- FIRING HEAD. TAG WITH WEIGHT DOWN AT 14314'. PUH AND REPEAT. CORRECT DEPTH TO PBTD @ 14305'. PUH TO FIRING POSTION AT 14278.6 PUH SLOWLY AND INITIATE FIRE SEQUENCE. FAIR INDICATION OF GUNS FIRING. TEMPORARILY UNABLE TO MOVE COIL. BREAK FREE AND CONTINUE TO POOH PERF THE FOLLOWING INTERVALS WITH 2.0 ", 6 SPF, 2006 PJ PERFORATING GUNS: 12,480'- 12,560' 12,750'- 12,780' 13,110'- 13,300' [) 13,460'- 13,600' 13,660'- 13,790' 13,840'- 14,090' 14,170'- 14,270' 11:15 - 14:30 3.25 PERFOB P LOWER1 POOH TO LD PERFORATING GUNS. 14:30 - 15:00 0.50 PERFOB P LOWER1 OOH. PERFORM NO -FLOW TEST OF WELL AND CONDUCT PJSM FOR LAYING DOWN CSH. 15:00 - 20:00 5.00 PERFOB P LOWER1 LD PERFORATING BHA Printed: 3/19/2010 1:31:28 PM • i BP EXPLORATION Page 13 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 3/8/2010 20:00 - 20:45 0.75 PERFOB P LOWER1 CREW CHANGE OUT PJSM TO LD REMAINING PERF GUNS WITH ONCOMING CREW 20:45 - 00:00 3.25 PERFOB P LOWER1 LD REMAINING PERF GUNS 3/9/2010 00:00 - 01:30 1.50 PERFOB P LOWER1 RD PERFORATORS & THEIR TOOLS FROM RIG FLOOR 01:30 - 01:45 0.25 PERFOB P LOWER1 PJSM TO PU KB PACKER 01:45 - 04:45 3.00 PERFOB P LOWER1 RIH WITH KB PACKER OFF LOAD PERF GUNS WHILE RIH 04:45 - 06:00 1.25 PERFOB P LOWER1 TAG TOL @ 11,273' UNCORRECTED SET DOWN 7' TO BOTTOM OUT PACKER @ 11,280' SAW PRESSURE UP OF 400PSI WHEN STUNG INTO LINER PU TO 11,265' & PRESSURE DROPPED OFF PU TO 11,230' TO DROP BALL LOADED 5/8" STEEL BALL & LAUNCHED WITH 1,500PSI PUMP @ 2.5 BPM SLOW PUMPS TO .8 BPM @ 40 BBLS BALL ON SEAT @47.6 BBLS RIH, STAB PACKER INTO LINER BOTTOM OUT @ 11,280' & STACK 10K LBS PU UNTIL WT BREAKOVER PRESSURE UP PUMPS TO 2,650 PSI & BLEED OFF PRESSURE SET 10K LBS BACK ON TOOL, WT STACKED OUT 11,278' CONFIRMING PASCKER SET PROPERLY PRESSURE UP DM/Al BACKSIDE TO 2,065 PSI FOR PACKER LEAK -OFF TEST HELD PRESSURE WITH NO LEAKOFF FOR 15 MIN WITH NO PRESSURE LOSS BLEED OFF PRESSURE & LINE UP BACK DOWN THE COIL PRESSURE UP TO 3,500 PSI & RELEASE PACKER 06:00 - 08:15 2.25 PERFOB P LOWER1 POH 08:15 - 08:30 0.25 PERFOB P LOWER1 PJSM FOR LD PACKER SETTING TOOL AND MAKING UP FREEZE PROTECT BHA. 08:30 - 09:30 1.00 PERFOB P LOWER1 LD PACKER SETTING TOOL AND MU NOZZLE BHA 09:30 - 10:15 0.75 WHSUR P POST RIH WITH FREEZE PROTECT BHA. 10:15 - 11:15 1.00 WHSUR P POST STANDBY FOR CH2MHILL DIESEL TRANSPORT. DRIVER UNAVAILABLE. 11:15 - 13:00 1.75 WHSUR P POST BEGIN PUMPING DIESEL FOR FREEZE PROTECT OF WELL. DIESEL NOTED AT RETURN MICRO - MOTION. POOH LEAVING 200' VOID IN WELL. 13:00 - 14:00 1.00 WHSUR P POST LID FREEZE PROTECT BHA AND CLEAR FLOOR. 14:00 - 16:00 2.00 WHSUR P POST PJSM AND SET BPV. 16:00 - 18:00 2.00 RIGD P POST PREP TO N/D BOPS. REMOVE IA AND OA GAUGES AND FUSIBLE CAP. 18:00 - 20:00 2.00 RIGD P POST PJSM AND VERIFY LO/TO ON BOP CONTROLS. START N/D BOP STACK. WAIT ON CH2 CRANE TO ARRIVE TO PICK UP INJECTOR. 20:00 - 22:00 2.00 RIGD P POST CONTINUE N/D BOPS. CH2 CRANE CREW ARRIVES, FILL OUT LIFTING OPS PERMIT AND CONDUCT PJSM WITH CH2, SLB, AND NORDIC. PICK UP INJECTOR OFF GROUND WITH CRANE AND SET IT ON TRAILER. Printed: 3/19/2010 1:31:28 PM • i BP EXPLORATION Page 14 of 14 Operations Summary Report Legal Well Name: C -20 Common Well Name: C -20 Spud Date: 8/8/2000 Event Name: REENTER +COMPLETE Start: 2/17/2010 End: 3/9/2010 Contractor Name: NORDIC CALISTA Rig Release: 3/10/2010 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code NPT Phase Description of Operations 3/9/2010 22:00 - 00:00 2.00 RIGD P POST N/D BOPS AND SECURE STACK. RIG RELEASED AT 24:00. Printed: 3/19/2010 1:31:28 PM Ira 1 BAKER MS INTEQ North America - ALASKA - BP Prudhoe Bay PB C Pad C -20 - Slot 20 C -20C Survey: MWD Survey Report - Geographic 04 March, 2010 Atli • • s Survey Report - Geographic 1NTEQ Company: North America - ALASKA - BP Local Co - ordinate Reference: ' Well C-20 - Slot 20 Project: Prudhoe Bay TVD Reference: C -20B © 59.95ft (C -20B) Site: PB C Pad MD Reference: C -20B © 59.95ft (C -20B) Well: C - 20 North Reference: True Wellbore: C - 20C Survey Calculation Method: Minimum Curvature Design: C -20C 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 C Pad, TR -11 -14 i Site Position: Northing: 5,957,218.72ft Latitude: 70° 17' 22.367 N From: Map Easting: 662,550.03ft Longitude: 148° 41' 2.797 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 1.24 ° I Well C -20 API No 500292074500 Well Position +N / - 0.00 ft Northing: 5,960,434.00 ft Latitude: 70° 17' 53.708 N +E / - 0.00 ft Easting: 663,843.00 ft Longitude: 148° 40' 23.086 W P osition Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00 ft Wellbore C API No 500292074503 Magnetics Model Name Sample Date Declination Dip Angle Field Strength r) r) (nT) BGGM2009 10/7/2009 22.49 80.93 57,673 Design C - 20C Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 11,645.79 Vertical Section: Depth From (TVD) +N /-S +E/ -W Direction (ft) (ft) (ft) r) 26.95 0.00 0.00 54.06 Survey Program Date: 3/4 /2010 , From To I (ft) (ft) Survey (Wellbore) Tool Name Description 92.75 8,892.75 1 : Camera based gyro multisho (C -20) CB- GYRO -MS Camera based gyro multishot 8,990.00 11,645.79 3 : MWD - Standard (C -20A) MWD MWD - Standard 11,648.50 14,354.00 MWD (C -20C) MWD MWD - Standard 3/4/2010 8 :50 :08AM Page 2 COMPASS 2003.16 Build 71 , BAKER MOHO Survey Report - Geographic INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well C-20 - Slot 20 Project: Prudhoe Bay TVD Reference: C -20B © 59.95ft (C -20B) Site: PB C Pad MD Reference: C -20B © 59.95ft (C -20B) Well: C -20 North Reference: True Wetlbore: C -20C Survey Calculation Method: Minimum Curvature Design: C -20C Database: EDM .16 - Anc Prod - WH24P r Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N /-S +E/ -W Northing Easttng (R) ( ° ) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 11,645.79 48.42 137.83 8,707.37 2,489.62 5,770.82 5,963,048.67 669,557.77 70° 18' 18.172 N 148° 37' 34.808 W 11,648.50 48.61 138.00 8,709.17 2,488.12 5,772.18 5,963,047.19 669,559.16 70° 18' 18.157 N 148° 37' 34.769 W 11,667.46 51.23 136.50 8,721.38 2,477.47 5,782.03 5,963,036.76 669,569.24 70° 18' 18.052 N 148° 37' 34.482 W 11,696.02 54.23 132.00 8,738.68 2,461.63 5,798.31 5,963,021.28 669,585.86 70° 18' 17.896 N 148° 37' 34.007 W 11,727.90 56.87 127.00 8,756.72 2,444.93 5,818.60 5,963,005.03 669,606.50 70° 18' 17.732 N 148° 37' 33.416 W 11,761.16 58.35 121.15 8,774.54 2,429.22 5,841.85 5,962,989.83 669,630.09 70° 18' 17.577 N 148° 37' 32.739 W 11,790.88 58.98 115.47 8,790.01 2,417.19 5,864.19 5,962,978.29 669,652.69 70° 18' 17.458 N 148° 37' 32.088 W 11,818.76 60.53 110.46 8,804.06 2,407.81 5,886.35 5,962,969.39 669,675.05 70° 18' 17.366 N 148° 37' 31.441 W 11,848.86 64.68 107.64 8,817.91 2,399.10 5,911.61 5,962,961.24 669,700.49 70° 18' 17.280 N 148° 37' 30.705 W 11,881.18 69.37 104.14 8,830.52 2,390.97 5,940.22 5,962,953.74 669,729.27 70° 18' 17.200 N 148° 37' 29.871 W 11,912.56 72.34 100.62 8,840.81 2,384.62 5,969.17 5,962,948.03 669,758.34 70° 18' 17.137 N 148° 37' 29.027 W 11,943.24 72.90 97.16 8,849.98 2,380.10 5,998.09 5,962,944.14 669,787.36 70°18' 17.093 N 148° 37' 28.184 W 11,970.24 74.10 95.47 8,857.65 2,377.26 6,023.82 5,962,941.85 669,813.14 70° 18' 17.064 N 148° 37' 27.434 W 12,002.46 76.19 93.09 8,865.91 2,374.93 6,054.87 5,962,940.21 669,844.23 70° 18' 17.041 N 148° 37' 26.528 W 12,041.04 78.33 90.81 8,874.42 2,373.66 6,092.47 5,962,939.75 669,881.85 70° 18' 17.028 N 148° 37' 25.432 W 12,072.48 80.37 89.16 8,880.23 2,373.67 6,123.37 5,962,940.43 669,912.74 70° 18' 17.028 N 148° 37' 24.531 W 12,093.06 80.61 85.04 8,883.63 2,374.69 6,143.64 5,962,941.90 669,932.98 70° 18' 17.038 N 148° 37' 23.940 W 12,119.58 80.62 82.32 8,887.96 2,377.57 6,169.64 5,962,945.35 669,958.91 70° 18' 17.066 N 148° 37' 23.181 W 12,154.24 82.24 78.36 8,893.12 2,383.33 6,203.42 5,962,951.84 669,992.55 70° 18' 17.123 N 148° 37' 22.196 W 12,182.92 82.95 74.46 8,896.82 2,390.01 6,231.06 5,962,959.12 670,020.04 70° 18' 17.188 N 148° 37' 21.390 W 12,211.72 83.13 70.93 8,900.31 2,398.51 6,258.35 5,962,968.21 670,047.13 70° 18' 17.272 N 148° 37' 20.594 W 12,243.06 83.85 67.00 8,903.87 2,409.69 6,287.40 5,962,980.02 670,075.94 70° 18' 17.381 N 148° 37 19.747 W 12,271.90 83.60 62.32 8,907.02 2,421.95 6,313.31 5,962,992.84 670,101.56 70° 18' 17.502 N 148° 37' 18.991 W 12,302.98 83.63 57.89 8,910.48 2,437.34 6,340.08 5,963,008.81 670,127.99 70° 18' 17.653 N 148° 37' 18.210 W 12,332.72 83.69 53.32 8,913.77 2,454.03 6,364.46 5,963,026.03 670,152.00 70° 18' 17.817 N 148° 37' 17.499 W 12,361.48 84.56 50.02 8,916.71 2,471.78 6,386.90 5,963,044.26 670,174.05 70° 18' 17.991 N 148° 37' 16.844 W 12,398.76 86.81 43.48 8,919.52 2,497.23 6,413.96 5,963,070.30 670,200.54 70° 18' 18.241 N 148° 37' 16.054 W 12,426.20 85.48 40.09 8,921.36 2,517.64 6,432.20 5,963,091.10 670,218.33 70° 18' 18.442 N 148° 37' 15.522 W 12,448.92 88.10 36.26 8,922.64 2,535.47 6,446.21 5,963,109.23 670,231.95 70° 18' 18.617 N 148° 37' 15.113 W 12,480.74 88.89 32.60 8,923.47 2,561.70 6,464.19 5,963,135.84 670,249.36 70° 18' 18.875 N 148° 37' 14.588 W 12,510.12 88.68 28.48 8,924.09 2,587.00 6,479.12 5,963,161.45 670,263.73 70° 18' 19.123 N 148° 37' 14.152 W 12,540.88 87.27 25.42 8,925.18 2,614.40 6,493.05 5,963,189.15 670,277.05 70° 18' 19.393 N 148° 37' 13.745 W 12,573.94 87.38 20.71 8,926.73 2,644.77 6,505.98 5,963,219.80 670,289.32 70° 18' 19.691 N 148° 37' 13.367 W 12,603.06 87.73 15.59 8,927.97 2,672.41 6,515.04 5,963,247.62 670,297.78 70° 18' 19.963 N 148° 37' 13.102 W 12,634.82 90.06 11.75 8,928.58 2,703.25 6,522.54 5,963,278.62 670,304.60 70° 18' 20.266 N 148° 37' 12.883 W 12,665.84 89.66 9.55 8,928.66 2,733.74 6,528.27 5,963,309.22 670,309.67 70° 18' 20.566 N 148° 37' 12.715 W 12,699.32 90.64 9.49 8,928.57 2,766.76 6,533.81 5,963,342.35 670,314.49 70° 18' 20.891 N 148° 37' 12.552 W 12,732.16 91.17 9.20 8,928.05 2,799.16 6,539.14 5,963,374.86 670,319.11 70° 18' 21.210 N 148° 37' 12.396 W 12,762.08 85.49 7.98 8,928.92 2,828.72 6,543.61 5,963,404.50 670,322.93 70° 18' 21.500 N 148° 37' 12.265 W 12,794.32 85.52 0.32 8,931.45 2,860.75 6,545.93 5,963,436.58 670,324.55 70° 18' 21.815 N 148° 37 12.197 W 12,826.54 87.24 351.49 8,933.49 2,892.79 6,543.64 5,963,468.56 670,321.56 70° 18' 22.130 N 148° 37' 12.263 W 12,855.44 89.69 343.70 8,934.27 2,920.98 6,537.44 5,963,496.61 670,314.75 70° 18' 22.408 N 148° 37' 12.443 W 12,885.74 90.37 334.84 8,934.25 2,949.29 6,526.72 5,963,524.67 670,303.42 70° 18' 22.686 N 148° 37' 12.755 W 12,916.12 90.21 326.92 8,934.10 2,975.81 6,511.95 5,963,550.86 670,288.07 70° 18' 22.947 N 148° 37' 13.185 W ; 12,946.98 91.41 318.37 8,933.66 3,000.31 6,493.24 5,963,574.95 670,268.84 70° 18' 23.188 N 148° 37' 13.730 W 12,976.92 94.57 310.80 8,932.10 3,021.29 6,471.97 5,963,595.45 670,247.11 70° 18' 23.395 N 148° 37' 14.349 W 13,007.12 96.67 307.25 8,929.14 3,040.21 6,448.63 5,963,613.86 670,223.37 70° 18' 23.581 N 148° 37 15.030 W 13,039.52 95.62 315.71 8,925.66 3,061.53 6,424.52 5,963,634.65 670,198.80 70° 18' 23.791 N 148° 37' 15.732 W 13,085.40 92.33 326.45 8,922.47 3,097.08 6,395.82 5,963,669.57 670,169.33 70° 18' 24.141 N 148° 37' 16.568 W 13,118.12 91.60 331.43 8,921.35 3,125.09 6,378.95 5,963,697.19 670,151.86 70° 18' 24.416 N 148° 37 17.060 W 13,147.42 90.25 332.61 8,920.88 3,150.96 6,365.21 5,963,722.76 670,137.56 70° 18' 24.671 N 148° 37' 17.460 W 13,177.48 89.48 331.68 8,920.95 3,177.53 6,351.16 5,963,749.02 670,122.94 70° 18' 24.932 N 148° 37' 17.869 W 13,208.92 89.42 330.64 8,921.25 3,205.07 6,336.00 5,963,776.22 670,107.18 70° 18' 25.203 N 148° 37' 18.310 W 13,237.40 90.09 329.10 8,921.37 3,229.70 6,321.70 5,963,800.53 670,092.35 70° 18' 25.446 N 148° 37' 18.726 W 13,267.56 90.46 327.51 8,921.23 3,255.36 6,305.86 5,963,825.84 670,075.95 70° 18' 25.698 N 148° 37 19.188 W 3/4/2010 8:50:08AM Page 3 COMPASS 2003.16 Build 71 • 13 RI • • Survey Report - Geographic INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well C-20 - Slot 20 Project: Prudhoe Bay TVD Reference: C -20B (cad 59.95ft (C -20B) Site: PB C Pad MD Reference: C -20B @ 59.95ft (C -20B) Well: C - 20 North Reference: True Welibore: C - 20C Survey Calculation Method: Minimum Curvature Design: C - 20C Database: EDM .16 - Anc Prod - WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N /-S +E / -W Northing Easting (ft) (e), f (ft) (ft) (ft) (ft) (ft) Latitude Longitude 13,297.26 91.26 326.32 8,920.78 3,280.25 6,289.65 5,963,850.36 670,059.20 70° 18' 25.943 N 148° 37' 19.660 W 13,327.08 90.49 325.14 8,920.33 3,304.89 6,272.86 5,963,874.62 670,041.88 70° 18' 26.186 N 148° 37' 20.149 W 13,358.02 90.34 323.83 8,920.10 3,330.07 6,254.88 5,963,899.41 670,023.36 70°18' 26.433 N 148° 37' 20.673 W 13,391.72 91.81 322.10 8,919.47 3,356.96 6,234.59 5,963,925.85 670,002.49 70° 18' 26.698 N 148° 37' 21.264 W 13,422.10 91.66 321.75 8,918.55 3,380.87 6,215.87 5,963,949.34 669,983.25 70° 18' 26.933 N 148° 37' 21.809 W 13,452.28 91.93 321.59 8,917.61 3,404.53 6,197.16 5,963,972.59 669,964.03 70° 18' 27.166 N 148° 37' 22.354 W 13,482.48 92.03 320.97 8,916.56 3,428.08 6,178.28 5,963,995.72 669,944.64 70° 18' 27.398 N 148° 37' 22.904 W 13,510.72 90.12 321.11 8,916.03 3,450.03 6,160.53 5,964,017.28 669,926.42 70° 18' 27.614 N 148° 37' 23.422 W 13,542.60 89.94 320.28 8,916.02 3,474.70 6,140.33 5,964,041.50 669,905.69 70° 18' 27.857 N 148° 37' 24.010 W 13,572.52 89.88 319.91 8,916.06 3,497.65 6,121.14 5,964,064.03 669,886.00 70° 18' 28.083 N 148° 37' 24.569 W 13,602.36 90.21 318.97 8,916.04 3,520.32 6,101.73 5,964,086.27 669,866.11 70° 18' 28.306 N 148° 37' 25.135 W 13,632.36 90.21 318.30 8,915.93 3,542.84 6,081.91 5,964,108.34 669,845.80 70° 18' 28.527 N 148° 37 25.712 W 13,660.38 90.18 317.64 8,915.83 3,563.65 6,063.15 5,964,128.74 669,826.59 70° 18' 28.732 N 148° 37 26.259 W 13,692.40 92.09 317.22 8,915.20 3,587.23 6,041.49 5,964,151.83 669,804.43 70° 18' 28.964 N 148° 37 26.890 W 13,722.50 90.83 316.08 8,914.43 3,609.11 6,020.84 5,964,173.26 669,783.31 70° 18' 29.180 N 148° 37' 27.492 W 13,752.54 91.29 314.29 8,913.88 3,630.41 5,999.67 5,964,194.10 669,761.68 70° 18' 29.389 N 148° 37' 28.109 W 13,786.36 90.46 312.94 8,913.36 3,653.74 5,975.19 5,964,216.88 669,736.70 70° 18' 29.619 N 148° 37' 28.822 W 13,812.32 91.60 312.94 8,912.89 3,671.42 5,956.19 5,964,234.14 669,717.32 70° 18' 29.793 N 148° 37' 29.376 W 13,849.74 91.14 313.53 8,912.00 3,697.04 5,928.93 5,964,259.17 669,689.51 70° 18' 30.045 N 148° 37 30.170 W 13,880.62 91.75 312.71 8,911.22 3,718.14 5,906.40 5,964,279.77 669,666.53 70° 18' 30.253 N 148° 37' 30.827 W 13,912.26 91.81 312.43 8,910.24 3,739.54 5,883.11 5,964,300.65 669,642.78 70° 18' 30.463 N 148° 37' 31.505 W 13,942.40 92.98 312.03 8,908.98 3,759.78 5,860.81 5,964,320.39 669,620.04 70° 18' 30.663 N 148° 37' 32.155 W 13,972.00 92.09 311.69 8,907.67 3,779.51 5,838.79 5,964,339.64 669,597.60 70° 18' 30.857 N 148° 37' 32.797 W 14,002.64 91.90 309.81 8,906.60 3,799.50 5,815.59 5,964,359.12 669,573.97 70° 18' 31.054 N 148° 37' 33.473 W 14,032.50 90.71 309.73 8,905.92 3,818.59 5,792.65 5,964,377.71 669,550.62 70° 18' 31.242 N 148° 37' 34.142 W 14,062.42 91.01 310.05 8,905.47 3,837.78 5,769.69 5,964,396.39 669,527.25 70° 18' 31.431 N 148° 37' 34.811 W 14,092.24 90.49 308.89 8,905.08 3,856.73 5,746.68 5,964,414.83 669,503.83 70° 18' 31.617 N 148° 37' 35.482 W 14,122.22 90.46 308.42 8,904.83 3,875.46 5,723.27 5,964,433.04 669,480.02 70° 18' 31.801 N 148° 37' 36.164 W 14,152.28 90.06 308.40 8,904.70 3,894.14 5,699.71 5,964,451.20 669,456.06 70° 18' 31.985 N 148° 37' 36.851 W 14,181.88 90.61 307.51 8,904.52 3,912.34 5,676.37 5,964,468.89 669,432.33 70° 18' 32.165 N 148° 37' 37.531 W 14,212.90 90.15 306.49 8,904.32 3,931.01 5,651.60 5,964,487.01 669,407.16 70° 18' 32.348 N 148° 37' 38.253 W 14,242.34 90.89 307.56 8,904.05 3,948.73 5,628.10 5,964,504.22 669,383.28 70° 18' 32.523 N 148° 37' 38.938 W 14,272.54 89.88 306.34 8,903.85 3,966.89 5,603.96 5,964,521.84 669,358.76 70° 18' 32.702 N 148° 37' 39.642 W 14,302.24 89.69 305.56 8,903.96 3,984.32 5,579.92 5,964,538.75 669,334.34 70° 18' 32.873 N 148° 37' 40.343 W 14,354.00 89.69 305.56 8,904.24 4,014.42 5,537.81 5,964,567.92 669,291.59 70° 18' 33.170 N 148° 37' 41.570 W 3/4/2010 8:50 :08AM Page 4 COMPASS 2003.16 Build 71 IFS.■ • • • Was Survey Report - Geographic INTEQ Company: ; North America - ALASKA - BP Local Co- ordinate Reference: Well C-20 - Slot 20 Project: Prudhoe Bay TVD Reference: C -20B © 59.95ft (C -20B) Site: PB C Pad MD Reference: C -20B © 59.95ft (C -20B) Well: C - 20 North Reference: True Wellbore: C - 20C Survey Calculation Method: Minimum Curvature Design: C - 20C Database: EDM .16 - Anc Prod - WH24P Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft)' Name (in) (in) 14,354.00 8,904.24 2 7/8" 2.875 4.125 Survey Annotations Measured Vertical Local Coordinates Depth Depth +N /-S +E/ -W (ft) (ft) (ft) (ft) Comment j 11,645.79 8,707.37 2,489.62 5,770.82 TIP I 11,648.50 8,709.17 2,488.12 5,772.18 KOP I 14,354.00 8,904.24 4,014.42 5,537.81 TD Checked By: Approved By: Date: 3/4/2010 8:50:08AM Page 6 COMPASS 2003.16 Build 71 TREE= 6-1/8" CIW • SAFEI WTES: WELL EXCEEDS 70 © 12000' & HORIZ. WELLHEAD McEVOY @ 12S "* 4 -1/2" CHROME TBG "° ACTUATOR = AXELSON 4-112" WL EG IS NOT INTO TOP OF LNR T1E -BACK SL.V. KB. ELEV = 60.0' SQUARE SHOULDERED TOOLS WILL HANG UP ON. WLEG. BF. ELEV = 34.3' 5 SS BANDS IN HOLE DURING 2005 RWO KOP = 1000' Max Angle = 97 + 1300T 21' �- T' X 4-1/2" X/ I Datum MD = 11979 Datum TVD = 8800' SS) I 1993' H4 -1/2" HES X NIP, ID = 3.813 " 113 -3/8" CSG, 72 #, L -80, ID = 12.347" H 2891' I GAS LIFT MA NDRELS Minimum ID = 2300" @ 11270' S T MD TVD DEV TYPE VLV LATCH- PORT' DATE TOP OF " LINER EP 3 4688 3728 54 WAG DOME RK 16 03/20/10 2 8318 5845 55 MMG SO RK 20 03/20/10 1 10734 7878 13 KBG2 DMY BK 0 01/24/05 1TOP OF TIEBACK HI 8832' I 8840' I- 19 -5/8" X 7" BKR ZXP PKR/TIEBACK, f2 = 6.313" e e 8846' I-17" BKR HMC LNR HGR, ID = 6.250" I PERFORATION SUMMARY REF LOG: ???? ON rrxn/dd /yy MILLOUT WINDOW (C - 20A) 8992' - 9028' ANGLE AT TOP PERF: 89° © 12480' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE 2" 6 12480 - 12560 0 03/04/10 2" 6 12750 - 12780 0 03/04/10 2" 6 13110 13300 0 03/04/10 ♦�� -_• 1111 I 10802' I . 44 -1/2" HES X NIP, ID = 3.813" I 2" 6 13460 - 13600 0 03/04/10 � . 2" 6 13660 - 13790 0 03/04/10 1•1•1•1•1•1•1•1•111•1 1,1 r.; 10823' I--17" BKR S -3 PKR, ID = 3.875" f 2" 6 13840 - 14090 0 03/04/10 X111 /11111111 /111111 10889' I,_„I4 -1 /2" HES X NIP, ID = 3,813" 2" •6 14170 -14270 0 03/04/10 •'•�•�•�•�•�•∎/••�• 10910' I—(TBG STUB (01 /18/05) I 11111111111 1111111111 11111111111 g 10911' I-1 UNIQUE MACHINE OVERSHOT I 1111111111 , :14....••••••••••••••••••••••104 10950' I_ -1 /2" OTIS X NIP, ID = 3.813" I I9 -5/8" CSG, 47 #, L -80, BTRS, ID = 8.681" I—I 11705' 4.4.4.4.4.4.4.4.4.4.4 e ►:1 10961' I_,,I7" BKR S -3 PKR, ID = 3.875" I 4-1/2" TBG. 12.6#, 13CR, .0152 bpf, ID = 3.958" H 10910' I 10984' 1_14- 1 /2" OTIS X NIP, ID = 3.813" I I 11005' 144-1/2" OTIS XN NIP, MILLED ID = 3.80" I 1 4-1 /2" TBG, 12.6#, L- 80...0152 bpf, ID = 3.958" I-I 11016' j I 11017' j-14- 1 /2" wt. EG ` 7 _1 X 4-1/2" BKR ZXP PKR/TB, ID = 4.438" I 11027' W7" BKR HMC LNR HGR, ID = 4.438" j IT LNR, 26#, L - 80, .0383 bpf, ID = 6.276" H 11205' ( T , 2 2' ', .. 11260' 1-14-1 /2" BKR KB LTP ID = 1563" I ITOP OF 3- 3/16" x 2 -7/8' LNR, ID = 2.300" I 11250' 17 top of omit T1 L t ° 12699' 1—I 3-3/16 x 2 -7/8 X -over I I4 -1/2" nobare Whipstock H 11648' TOP OF 2 -7/8" LNR, ID = 2.372" H 11702' I I i I 3-3/16" X 2-7/8" liner I-f 14354' 1 4-1 /2" LNR, 12.6 #, L -80, .0152 bpf, ID= 3.958" N 13000' 1_41- . A I PBTD H 14949' I I 13400' H2 -7/8" BKR CIBP SET (09/28/06) I 1 12 -7/8" LNR, 6.16#, L -80, .0058 bpf, ID = 2.372" f --j 15012' /twee g DATE REV BY COMMENTS - DATE REV BY 1 COMMENTS PRUDHOE BAY UNIT 07/12/82 ORIGINAL COMPLETION 03/21/10 SWC /SV GLV C/O WELL: C-20C 07/12/97 RIG SIDETRACK PERMIT No: 08/18/00 CTD SIDETRACK (C -20B) API No: 50 029 - 20745 - 03 01/25 /05 RWL/TLH RWO SEC 19, T11N, R14E, 774' SNL & 1522' WEL 03/09/10 NORDICI CTD SIDETRACK (C -20C) 03/20/10 TLH DRLG HO CORRECTIONS BP Exploration (Alaska) 0 ei , c,.--) . )L . ii,\. - 1, , 7 i .tl : 0,- Ji ilA\ p a t G h r g � j SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS i 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMISSION / PHONE ANCHORA (907) 27S -KA 99501 -3539 I FAX (907) 276 -7542 Mr. 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 C -20C BP Exploration (Alaska) Inc. Permit No: 209 -130 Surface Location: 774' FNL, 1522' FEL, SEC.19, T11N, R14E, UM Bottomhole Location: 3225' FSL, 4089' FWL, SEC.17, Ti 1N, 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. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659 -3607 (pager). Sincerely, 0 Daniel T. Seamount, Jr. Chair DATED this 4 of November, 2009 cc: Department of Fish 86 Game, Habitat Section w/o end. Department of Environmental Conservation w/o end. STATE OF ALASKA RECEIVED"'""'' ALAS•IL AND GAS CONSERVATION COMMIIIN PERMIT TO DRILL OCT 2 7 2009 20 AAC 25.005 1 a. Type of work: 1 b. Proposed Well Class: _1 Development Oil ❑ S ervice - Winj ❑ Single Zone N8 §AMO 0 ❑ Drill ® Redrill ❑ Stratigraphic Test ❑ Development Gas ❑ Service - Supply ❑ Multiple Zone ❑ Coalbed GAlichvageHydrates ❑ Re -Entry ❑ Exploratory ❑ Service - WAG ❑ Service - Disp ❑ Shale Gas 2. Operator Name: 5. Bond: ® Blanket ❑ Single Well 11. Well Name and Number: BP Exploration (Alaska) Inc. Bond No. 6194193 PBU C -20C 3. Address: 6. Proposed Depth: 12. Field / Pool(s): P.O. Box 196612, Anchorage, Alaska 99519 -6612 MD 14300' TVD 8851'ss Prudhoe Bay Field / Prudhoe 4a. Location of Well (Govemmental Section): 7. Property Designation (Lease Number): Bay Oil Pool Surface: ADL 028305 774' FNL, 1522' FEL, SEC. 19, T11 N, R14E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 730' FSL, 5136' FWL, SEC. 17, T11N, R14E, UM February 1, 2010 Total Depth: 9. Acres in Property: 14. Distance to Nearest Property: 3225' FSL, 4089' FWL, SEC. 17, T11 N, R14E, UM 2560 22,065' 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 59.95' feet 15. Distance to Nearest Well Open Surface: x- 663843 y Zone- ASP4 GL Elevation above MSL: 32.8' feet to Same Pool: 481' 16. Deviated Wells: Kickoff Depth: 11648' feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 91 degrees Downhole: 3240 Surface: 2358 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) 4-1/4" 3 -1/2" x 3 -3/16" 8.81# / 6.2# L -80 STL / TCII 3030' 11270' 8341'ss 14300' 8851'ss 191 cu ft Class 'G' x 2 -7/8" / 4.7# 1 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re -entry Operations) Total Depth MD (ft): Total Depth TVD ( ft) : I Plugs (measured): Effective Depth MD (ft): I Effective Depth TVD (ft): Junk (measured): 15012' 8883' I 13400' 14949' 8888' J None Casing Length Size Cement Volume MD TVD Conductor / Structural 110' 20" x 30" $ cu vds Concrete 110' 110' Surface 2891' 13 -3/8" 4466 cu f t Arcticset I I 2891' 2660' Intermediate 8990' 9 1565 cu ft Class 'G'. 167 cu ft PF 'C' 8990' 6256' Production Liner 2373' 7" 213 cu ft Class 'G' 8832' - 11205' 6153' - 8338' Liner 1987' 4 -1/2" 258 cu ft Class 'G' 11013' - 13000' 8150' - 8940' Liner 3318' 2 -7/8" 129 cu ft Class 'G' 11694' - 15012' 8738' - 8883' Perforation Depth MD (ft): 12560' - 14895' Perforation Depth TVD (ft): 8931' - 8894' 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 foregoing is true and correct. Contact Mel Rixse, 564-5620 Printed Name Jo Mu,,- n Title Engineering Team Leader r Prepared By N� i&N anDer Signature �� F Phone 564 -4711 Date ld /L 1 G T erris Hubble, 564 -4628 Commission Use Only // Permit To • rill API Number: Perm' v I See cover letter for Number: o709/ J9 50 -029- 20745 -03-00 �/ Ap I other requirements PP may Conditions of Approval: If box is checked, well not be explore for, produce coal m hane, gas h Y drates, or gas contained shales: M' _ e used to test, or p other: , 3 S r OD i o s � o f pQ ies Samples Req'd: ❑ Yes 10 Mud Log Req'd: ❑ Yes ( o A a 5O® Sts N nil f � HI Measures: 0 Yes ❑ No Directional Survey Req'd: Yes ❑ No G f ) I APPROVED BY THE COMMISSION Date , COMMISSIONER Form 10-401 Revised 7/2009 This permit is valid for 24 months from the of approval (20 AAC 25.005(9)) Submit In Duplicate ORIGINAL 7- 4 :3_®(.-,x% • C -20C - Coiled Tubing Dng To: Tom Maunder Petroleum Engineer Alaska Oil & Gas Conservation Commission bp From: Mel Rixse CTD Engineer Date: October 22, 2009 Re: C -20C Application for Permit to Drill Request CTD Drill and CompleteC -20C program: Spud in February 1, 2010 Pre -Rig Operations 1. 0 MIT -OA - 2000 psi Passed 08/19/2009 DONE 2. 0 MIT -IA - 3000 psi Passed 08/19/2009 DONE - 3. 0 PPPOT -T, AC -LDS 08/03/2009 DONE . 4. S Drift for 4 -1/2" monobore whipstock to -11,700' MD 5. E Set 4 -1/2" monobore whipstock - 11,648' MD (see procedure below.) ' 6. C Squeeze cement past whipstock. 7. 0 MIT- Tubing 3000 psi 8. 0 PT tree (MV,SV,WV), function LDS 9. 0 Bleed gas lift and production flowlines down to zero and blind flange 10. 0 Remove S- Riser, Remove wellhouse, level pad - Complete °1' Rig Sidetrack Operations: (Scheduled to begin on February 1, 2010) 1. NU 7- 1/16" CT Drilling BOPE and test to 250 psi low and 3500 psi high 2. Pull BPV. 3. Mill 3.80" window at 11,648'. 4. Drill build /turn section with 4.25" bicenter bit, and land well. 5. Drill lateral section to 14,300' MD w/ resistivity log. 6. Run 3 -1/2 "x 3- 3/16 "x 2 -7/8" solid liner w /cementralizers to TD. Place liner top at 10,270' MD. --r“15 7. Cement liner from TD to TOL (11,270'MD ) with 15.8ppb cement. 8. Clean out liner /Run MCNUGR /CCL log. 9. Test liner lap to 2000 psi. 10. Perforate per geologist. 11. Set liner top packer (if fails liner lap test) 12. Freeze protect well to 2500'. 13. Set BPV. ND 7- 1/16" stack. FP tree and PT tree cap to 3500 psi. 14. RDMO Nordic 1. Post -Rig Work: 1. Re- install wellhouse and FL's. 2. Pull BPV. 3. Run Live gas lift design 4. RU test separator, flow test well. October 22, 2009 • C -20C — Coiled Tubing D ng Mud Program: • Well kill: 8.4 ppg brine • Milling /drilling: 8.6 ppg Geo -Vis or biozan for milling, new Geo -Vis for drilling. Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. • All Class I wastes will go to Pad 3 for disposal. Hole size: 4 -1/4" Casing Program: • 3 -1/2 ", 8.81#, L -80, STL connection solid liner - 11,270'MD — 11,310' MD • 3- 3/16 ", 6.2 #, L -80, STL TC -II connection solid liner — 11,310'MD — 12,800' MD. • 2 -7/8 ", 4.7# , L -80, STL connection solid liner — 12,800'MD — 14,300' MD. • A minimum of 34 bbls 15.8 ppg cement will be used for liner cementing. (TOC 11,270'MD) Well Control: • BOP diagram is attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3500 psi. • The annular preventer will be tested to 250 psi and 2500 psi. Directional • See attached directional plan. Maximum planned hole angle is 91.4 deg. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property line — 22,065' Northwest Anticollision Summary • C -14 236' ctr -ctr, Status: Abandoned with cement • C -37A — 527' ctr -ctr, Status: Producing • C- 37APB1 — 366' ctr -ctr, Status: Abandoned • C -03A — 469' ctr -ctr. Status: Abandoned • 15 -33B 481 ctr -ctr Status: Producing Logging • MWD directional, Gamma Ray, and Resistivity will be run over all of the open hole section. • A cased hole GR/CCL/CNL log will be run. Hazards • The maximum recorded H2S level on C Pad is 25 ppm on C -39A (04 -16- 2007). C Pad is not an H2S pad. • Lost circulation risk is high. Four fault crossings are expected. Reservoir Pressure • Res. press. is estimated to be 3,240 psi at 8,821'ss (7.1 ppg EMW). Ma imu surface pressure with gas (0.10 psi /ft) to surface is 2358 psi. el Rixse CTD Engineer October 22, 2009 • C -20C - Coiled Tubing D•g 6.1/8" CAN -20 SAFETY NOTES: WELL EXCEEDS 70° 12000' & HORIZ. r m D= McEVOY - X12609'. - 4- 112'CMFtOMEI'BCi"" ATOR= AXELS(NV 4 -1 / 2 ' WLt3018 NOT INTO TOP OF LNR TIE-BACK BLV. LEV = 60.0' SQUAF SHOUL0E TOOLS WILL HANOI UP ON WLB . LEV = 34.3' l 6 SS BANDS IN HOLE DURING 2006 RVWO = 1000' Angle: = l'7 ®14923' 21' 41/2 X/O MD = 11936' m ND = 8800 SS I 1993' H4 -1 /z" HES X NIP, ID = 3.813" I 113 -3/8" CSG, 724, L -80, ID = 12.347' H 2891' Ha 6 GAS LIFT MA NDRELS Minimum ID = 2.372" 11702' ST MD TVD DEV TYPE VLV LATCH PORT DATE 3 4688 3728 54 MMIG I7MY RK 0 08/19/09 TOP OF 2 -7/8" LINER ' f 2 8318 5845 55 NM DMY RK 0 08/19/09 U 1 10734 7878 13 KBG2 CMY BK 0 01/24/05 ITOP OF TIEBACK H 8832' I y, I 8840 H 9 - 5/8" X 7" BKR ZXP PKR/11EBA CK, ID = 6.313" I I 8848' H7" BKR HMC LNR HGR, D = 6.250" PERFORATION SUMMARY MILLOUT WINDOW (C -2013) $932' - 9020' I REF LOG: SPERRY GRWROP ON 08/00 ANGLE AT TOPFERF: 89° ®12560' Note: Refer to Production DB for historicalf data SIZE I SPF I NNfBRVAL I OpnlSgz I DATE SEE PG. 2 FOR PERFORATON DATA I 10802' 4-1 /2" HES X NIP, ID = 3.813" I X 0'1 •'1'10 . 1 � 1 4•. ..1.•101 001 : / C 10823` h7" BKR S -3 PKR, ID = 3.875' I . I 8 1. 1 1. 1/ 1 11 10889' 1.44-1/2" HES X MP, D= 3.813" I ♦.•11/01••/ 11•11. 1 1 1 •1 11 1 1 11 1 1• 1 10910' I-ITBG STUB (01/16(05) I 1.11111111 • 1 1 2'. / • .1 i 10911' I_) UNDUE MACHINE OVERSHOT I . . ' ... ° .?*:* * * * * * . 1 1. 1 1 1. I i I-I41 /2 OTIS X NIP, D= 3.813" I I9 -5/8" CSG, 470, L -80, BTRS, D 1 = 8.681" H 11705' . 1 • . 1 1 1 1 1 11 2' 1 I 10960' 10991' I__I7' BKR S -3 PKR, D = 3.875" I 1 4 MG, G, 12.60, 13CR, .0152 bpf, D = 3.958" I- 10910' 1 1 ' J- 141 /2" OTIS X NIP, D = 3.813 I 11005' I_ -1 /2" 011S XN NP, PALLED ID = 3.80" I 141 /2" TBG, 12.8#, L -80, .0152 bpf, D = 3.958" H 11018' 0 11017' 41/7' WLEG • 11019' W7" X 4-1/2" BKR ZXP PKR/TB, D = 4.438" I 11027' 1J7" BKR FMC LNR HGR, D = 4.438" I I7' LNR, 260, L-80, .0383 bpf, D = 6.278" H 11208' I 1 11894" I.I3 -3/4" BKR DEPLOY SLV, ID = 3.00" I 13400' 2 -7/8" BKR CABP SET (09/28/08) I I TOP OF 2 -7/8" LNR, ID = 2.372" H 11707 N. if' N 41/7' LNR, 12.60, L -80, .0152 bpf, D = 3.958" H 13000' N PB TD' 14949' . qv 12 -7/8" LNR, 6.16$, L -80, .0058 bpf, ID = 2.372" H 15012' DATE REV BY COMMENTS DATE REV BY COMMENTS PR If) BAY WIT 07112182 ORIGINAL COMPLETION 0822/08 RDB/SV ADPERF (08/03/08) WELL: C-20B 07112197 160 SIDETRACK 08/22/09 RPCIPJC GLV C/O (08/19/09) FERMI No: "1001140 08/18/00 CTD SIDETRACK API No: 50-029-20745-02 01125105 RAJTLH FOMO SEC 19, T11N, R14E, 774' SNL & 1522' WEL 12/22/06 OOB/PAG PERE CORRECTION (08/13105) 06/26/07 SRB/PJC PERFORATIONS BP Exploration (Alaska) October 22, 2009 C -20C - Coiled Tubing D•ng TREE= 6-1/8" CM/ C 20C C SAFETY 2TY NOTES: 1/2 CHROME LL XCEEDS 70° t 12000' & I-IORIZ. WELLHEAD= WEVOY ACTUATOR = AXELSON 4 -1/2" WLEG IS NOT INTO TOP OF LNR TIE -BACK SLV. KB ELEV _ 600' P Mr's "' • 7 " c iilet tack SQUARE SHOULDERED TOOLS WILL HANG UP ON WLEG. BF. ELEV = 34.3' 5 SS BANDS IN HOLE DURING 2005 RWO KOP= 1000' -- - -- -- - - Max Angle = 37 @ 7 14413 7 21' — 7" x4 X/O Latum MD= 11936' u ..-.._ ... - --- Dattum _ ND = 8800' SS I 1993' —14-1/2" HES X NIP, ID = 3.813" 13 -3/8" CSG, 72#, L -80, ID = 12.347" F— 2891' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 3 4688 3728 54 NM DMY RK 0 08/19/09 2 8318 5845 55 MMG DMY RK 0 08/19/09 1 10734 7878 13 KBG2 DMY BK 0 01/24/05 TOP OF TIEBACK — 8832' 8840' — 19-5/8" X 7" BKR ZXP PKR/TIEBACK, ID = 6.313" 1 :1 Minimum ID = 2.300" @ 11270' ' I 8846' I— 7" BKR HMC LNR HGR, ID = 6.250" I TOP OF 3 -3/16" LINER PERFORATION SUMMARY MILLOUT WINDOW (C -20A) 8992' - 9028' REF LOG: SPERRY GR/ROP ON 08/00 ANGLE AT TOP PERF: 89° @ 12560' Note: Refer to Production DB for historical perf data SEE 1 SPF I INTERVAL 1 Opn /Sqz 1 DATE SEE PG. 2 FOR PERFORATOR DATA , .... 10802' I_14 HES X NIP, ID = 3.813" •111111111 • 1 1 n 108 23' 7" BKR S -3 PKR, ID = 3.875' • 1 1 1 1 1 1 j 1 1 1 j 1 1 / 1 1 1 1 j 4 II II 10889' _ 4 -1/2" HES X NIP, ID = 3 813" 11111111.1 •••1••••••• 111 10910' TBG STUB (01 /18/05) 1/11111111 — 1 111111111 1111111111 , '; 10911' I — UNIQUE MACHINE OVERSHOT •••••••••• . 1 1 9 -5/8" CSG, 47 #, L -80, BTRS, ID = 8.681" — 11705' 11 1 1 4 0 *, , 10950' _14 OTIS X NIP, 10 = 3.813" • I: I: 10961' _4 7" BKR S -3 PKR, ID = 3.875" I 10984' 1 — 4 -1/2" OTIS X NIP, ID = 3.813" 4 -1/2" TBG, 12.6 #, 13CR, .0152 bpf, ID = 3.958" I- 10910' 11005' — 4-1/2" 0115 XN NIP, MILLED ID = 3.80" 4 -1/2" TBG, 12.6#, L -80, .0152 bpf, ID = 3.958" -- I 11016' 11017' — 4-1/2" WLEG I ri 0 :, 11019' I — 7 "X4-1 /2" BKR ZXP PKR/TB, ID = 4.438" r 11027' _1 7" BKR HMC LNR HGR, ID = 4.438" I 7" LNR, 26 #, L -80, .0383 bpf, ID = 6.276" — 11205' T S R 11,212' (TOP OF 3- 3/16" x 2 -7/8" LNR, ID = 2.300" F— 11270' i 11260' I- { 4 -1/2" BKR KB LTP ID = 2.563" I top of cmt TOL j\ 12800' I-13 -3/16 x 2 -7/8 X -over I 14-1/2" Nbnobore Whipstock I— 11648' TOP OF 2 -7/8" LNR, ID = 2.372" — 11702' 1 I I 3 -3/16" X 2 -7/8" liner 1 14300' 4 -1/2" LNR, 12.6 #, L -80, .0152 bpf, ID = 3.958" — 13000' PBTD H I 14949' I 13400' —12 -7/8" BKR OBP SET (09/28/06) I 2 7/0' LNR, 0.10#, L -0E, .0030 bpf, ID 2.372 " 15012 rrr L , DATE R cY • • N 1A - • COMMENTS PRUDHOE BAY UNIT 07/12/82 ORIGINAL COMPLETION 08/22/08 RDB /SV ADPERF (08/03/08) WELL: C -20C 07/12/97 RIG SIDETRACK 08/22/09 RPC/PJC GLV C/O (08/19 /09) PERMIT No: 08/16/00 CTD SIDETRACK 09/18/09 MSE PROPOSED CTD SIDETRACK API No: 50- 029 - 20745 -03 01/25/05 RWLJTLH RWO SEC 19, T11 N, R14E, 774' SNL 8 1522' WEL 12/22/06 OOB/PAG PERF CORRECTION (08 /13 /05) 06/26/07 SRB/PJC PERFORATIONS BP Exploration (Alaska) October 22, 2009 E' I BAKER HUGHES North America - ALASKA - BP Prudhoe Bay PB C Pad C -20 - Slot 20 C -20C Plan: Plan 3 BP Coil Tubing Report w 14 October, 2009 � bp 114B111 BPPASSPORT 0 . BAKER BP Coil Tubing Report bP HUGHES Company: , . North America ALASKA - BP local Co- ordinate Reference Well C -20 - Slot 20 Project Prudhoe Bay I\fD Refeerence' Mean Sea Level Site PB C Pad MD Reference, , C -20B © 59.95ft (C -20B) Well C -20 North Reference : True INelltfore C -20C _ � � � ; � Survey:.Calcuiatlan Method Minimum Curvature Design Plan 3 - : Database: - Anc Prod - WH24P ,:. ; ��ata � � , � .�EDM .16 r .. project Prudhoe Bay, North Slope, UNITED STATES Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB C Pad, TR-11 -14 Site Position: Northing: 5,957,218.72 ft Latitude: 70° 17' 22.367 N From: Map Easting: 662,550.03 ft Longitude: 148° 41' 2.797 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 1.24 ° Well . C -20 - Slot 20, C -20 Well Position +N/-S 0.00 ft Northing: 5,960,434.00 ft Latitude: 70° 17' 53.708 N +El -W 0.00 ft Easting: 663,843.00 ft Longitude: 148° 40' 23.086 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00 ft T Wellbone ! C -20C Magnetics Model Name Sample Date : Declination Dip Angle . Field Strength BGGM2009 10/7/2009 22.49 80.93 57,673 Design Plan 3 Audit Notes: Version: Phase: PLAN Tie On Depth: 11,613.51 Vertical Section: Depth From (TVD) +Nj-S +El W Direction; -33.00 0.00 0.00 350.00 10/14/2009 1 :55:10PM Page 2 COMPASS 2003.16 Build 71 En BPPASSPORT BAKER BP Coil Tubing Report 0 bP . HUGHES Company: North America - ALASKA - BP .. Local Co- ordinate Reference: Well C-20 - Slot 20 Project , `" ":. "" Prudhoe Bay : TYI? Reference : "Mean Sea Level Sit* PB C Pad .. MD C 20B @ 59.95ft (C -20B) Reference Well: C -20 North Reference: , True Welibore: ", C -20C � " " � � � � ° � � � SurVay Calculation Method: � ' Minimum Curvature Design: Plan 3, : Database: EDM .16 - Anc Prod WH24P Survey Tool Program Date 10/13/2009 From To (ft) (ft) . Survey (VIIelibore) Tool Name - Description 92.75 8,892.75 1 : Camera based gyro multisho (C -20) CB- GYRO -MS Camera based gyro multishot 8,990.00 11,613.51 3 : MWD - Standard (C -20A) MWD MWD - Standard 11,613.51 14,300.00 Plan 3 (C -20C) MWD MWD - Standard Planned Survey MD Inc Azi TVDSS N/S E/W Northing ' Easting DLeg V. Sec TFace (ft) ' ( °) ( °) ' ' (II) O (It) . (It) (ft) ( ° /1OOft) ' (It) (0) .. 11,613.51 45.28 137.83 8,625.35 2,507.08 5,755.01 5,963,065.77 669,541.58 0.00 1,469.64 0.00 TIP 11,645.00 48.34 137.83 8,646.90 2,490.06 5,770.42 5,963,049.10 669,557.36 9.72 1,450.21 0.00 1 KOP 11,665.00 49.39 135.89 8,660.06 2,479.07 5,780.72 5,963,038.34 669,567.90 9.00 1,437.60 -55.00 End of9 deg /100ftDLS 11,700.00 52.53 130.47 8,682.11 2,460.51 5,800.55 5,963,020.21 669,588.13 15.00 1,415.87 -55.00 11,715.00 53.95 128.29 8,691.09 2,452.89 5,809.84 5,963,012.79 669,597.58 15.00 1,406.75 -51.58 4 11,800.00 61.00 115.67 8,736.89 2,415.34 5,870.56 5,962,976.58 669,659.10 15.00 1,359.23 -60.00 11,900.00 70.57 102.97 8,778.00 2,385.64 5,956.42 5,962,948.77 669,745.58 15.00 1,315.08 -53.1 11,991.26 80.00 92.70 8,801.21 2,373.81 6,043.66 5,962,938.84 669,833.05 15.00 1,288.28 -47.94 End of15 deg /100ft DLS 12,000.00 80.07 91.63 8,802.72 2,373.49 6,052.26 5,962,938.70 669,841.65 12.00 1,286.46 -86.00 12,100.00 81.16 79.52 8,819.08 2,381.09 6,150.43 5,962,948.45 669,939.63 12.00 1,276.91 -85.82 12,200.00 82.63 67.49 8,833.23 2,409.17 6,245.17 5,962,978.58 670,033.73 12.00 1,288.10 -83.83 12,291.26 84.25 56.59 8,843.68 2,451.62 6,325.12 5,963,022.76 670,112.73 12.00 1,316.03 -82.13 6 12,300.00 84.27 55.53 8,844.55 2,456.47 6,332.33 5,963,027.77 670,119.83 12.00 1,319.56 -89.00 12,400.00 84.63 43.48 8,854.26 2,520.98 6,407.88 5,963,093.91 670,193.95 12.00 1,369.97 -88.89 12,500.00 85.22 31.45 8,863.14 2,599.90 6,468.36 5,963,174.12 670,252.69 12.00 1,437.18 -87.73 10/14/2009 1 :55 :10PM Page 3 COMPASS 2003.16 Build 71 1111 BPPASSPORT BAKER BP Coil Tubing Report 0 bP HUGHES company . North America - AL ASKA - BP . , . Local C .ordii.�taie Reference•. : Well C -20 -Slot 20 Project :: ! Prudhoe Bay TVD.Reference . Mean Sea Level S( ' . PB C Pad ` MD Ftefgrence , '. C -206 @ 59.95ft (C -206) 'Witt C -20 North Reference: True Weilbore; C -20C .: Survey C alculation 'Method: . '' Minimum Curvature Design: ' Datab ' EDM .16 - Anc Prod WH24P Planned Survey , ` ., .. MD ' . 'Inc : Azi TVDSS NIS En" .. Northin pastin 014 . ` V. Sec TFace ... (ft) : . . . (1 ` ........ ( ...�..._ .. .... (ft) ( ..: (ft) .. 09 ... . ( . ( °I100ft) _ . . , ,... (.R) � . . (0) _ .. _ ;, 12,591.26 85.94 20.49 8,870.19 2,681.58 6,508.14 5,963,256.64 670,290.68 12.00 1,510.71 -86.66 7 12,600.00 86.47 19.58 8,870.77 2,689.77 6,511.12 5,963,264.89 670,293.48 12.00 1,518.26 -60.00 12,658.57 90.00 13.50 8,872.58 2,745.85 6,527.78 5,963,321.32 670,308.91 12.00 1,570.60 -59.94 8 12,700.00 90.00 8.53 8,872.58 2,786.51 6,535.69 5,963,362.13 670,315.93 12.00 1,609.26 -90.00 12,800.00 90.00 356.53 8,872.58 2,886.23 6,540.10 5,963,461.92 670,318.16 12.00 1,706.70 -90.00 12,900.00 90.00 344.53 8,872.58 2,984.68 6,523.67 5,963,559.99 670,299.60 12.00 1,806.51 -90.00 12,958.57 90.00 337.50 8,872.58 3,040.03 6,504.63 5,963,614.91 670,279.35 12.00 1,864.33 -90.00 9 13,000.00 90.09 332.53 8,872.54 3,077.57 6,487.14 5,963,652.05 670,261.05 12.00 1,904.34 -89.00 13,100.00 90.29 320.53 8,872.21 3,160.84 6,432.09 5,963,734.09 670,204.20 12.00 1,995.90 -89.00 13,200.00 90.48 308.53 8,871.53 3,230.84 6,360.94 5,963,802.52 670,131.55 12.00 2,077.19 -89.04 13,258.57 90.59 301.50 8,870.98 3,264.43 6,313.00 5,963,835.06 670,082.89 12.00 2,118.59 -89.13 10 13,300.00 90.67 306.48 8,870.53 3,287.58 6,278.66 5,963,857.45 670,048.06 12.00 2,147.36 89.00 13,400.00 90.85 318.48 8,869.19 3,354.98 6,205.05 5,963,923.23 669,973.00 12.00 2,226.51 89.0 13,500.00 91.00 330.48 8,867.57 3,436.21 6,147.06 5,964,003.16 669,913.26 12.00 2,316.58 89.2 13,508.57 91.01 331.51 8,867.42 3,443.70 6,142.90 5,964,010.57 669,908.94 12.00 2,324.68 89.41 11 13,600.00 91.18 320.53 8,865.67 3,519.39 6,091.89 5,964,085.12 669,856.29 12.00 2,408.07 -89.00 13,700.00 91.32 308.53 8,863.48 3,589.37 6,020.75 5,964,153.53 669,783.65 12.00 2,489.35 -89.21 13,758.57 91.37 301.50 8,862.10 3,622.95 5,972.82 5,964,186.05 669,735.00 12.00 2,530.74 -89.47 12 13,800.00 91.37 306.47 8,861.11 3,646.10 5,938.49 5,964,208.44 669,700.18 12.00 2,559.49 90.00 13,900.00 91.31 318.48 8,858.76 3,713.48 5,864.89 5,964,274.20 669,625.13 12.00 2,638.64 90.12 14,000.00 91.20 330.48 8,856.55 3,794.70 5,806.91 5,964,354.13 669,565.40 12.00 2,728.69 90.40 10/14/2009 1:55:10PM Page 4 COMPASS 2003.16 Build 71 BPPASSPORT BAKER allill BP Coil Tubing Report bp . _ . . . ,, ...., .. .. .. , : HUGHES .. . .: .. . , .:,:: ,::!: :, ::: l...: Local Co-: Orc1:14f'‘ Refer W - L S e v o e t 1 (C-20B) PO 11p14.: .. : : I' North America - ALASKA - BP PB C Pad ' ' . ' : : ' : 1: ' .. : ..,..„ , . MD Reference: '' ::: Project ' . ' : Prudhoe Bay , - : -....., .. , : ,, .. : . ., . Well: ' .. C-20 North Reference: True *ellborii; . ' C-20C survey.calcutat on Curvature Design: Plan 3 . . , . , Minimum ' ' . , . . .. . . ... .. ' ' - . , . . . . . . _ .. . . . . . , . . . . . . . _ . . . . . .. , . . .. . . _ . . .... . . . . . MD ': ':-. ':. Inc. : ' : .. - : (ft) ::: ::: ': (ft) .: : - : ' 4 361.53 669,56'1 12.00 2,736.80 90.67 . .. 3,802.20 5,802.75 5,96 , 4111 . . . , , 91.19 I ''''' ' ,. t i 331.51 . . , . 8,856.38 14,008.57 12.00 2,820.19 -90.00 5,751.74 5,964,436.08 669,508.44 -90.23 13 8,854.49 3,877.88 14,100.00 91.17 320.53 5,680.60 5,964,504.50 669,435.79 12.00 2,901.47 - 3,947.87 12.00 2,968.93 90.46 14,200.00 91.10 308.53 8,852.51 669,350.50 5,596.46 5,964,556.32 4,001.54 14,300.00 90.97 296.53 8,850.69 TD -2 7/8" 1 • Page 5 COMPASS 2003.16 Build 71 10/14/2009 1:55:10PM Fan BPPASSPORT BAKER BP Coil Tubing Report 0 bp HUGHES Company: North America - ALASKA - BP Local Co- ordinate Reference . . Well C -20 - Slot 20 Pro }ect Prudhoe Bay TVD Reference: Mean Sea Level Site PB C Pad , 'MD Reference: . C -20B @ 59.95ft (C -20B) 'Witt C -20 .. :. ..: North Reference: , True Welibore: C -20C Survey Calculation Method: Minimum Curvature 'Design: Plan 3 Database: . < , ' EDM . .16 - Anc Prod - WH24P targets 'Target Name hit/misstarget; Dip Angle . Dip Dir., , TVD +N/-S +E/ -W Northing Easti E , �.. C -20C Fault 4 0.00 0.00 0.00 3,967.87 5,245.12 5,964,515.00 669,000.00 70° 18' 32.714 N 148° 37' 50.108 W - plan misses target center by 8763.02ft at 11613.51ft MD (8625.35 TVD, 2507.08 N, 5755.01 E) - Polygon Point 1 0.00 3,967.87 5,245.12 5,964,515.00 669,000.00 Point 2 0.00 3,927.85 5,704.39 5,964,485.00 669,460.00 Point 3 0.00 3,908.05 5,924.02 5,964,470.00 669,680.00 Point 4 0.00 3,927.85 5,704.39 5,964,485.00 669,460.00 C -20C Fault 5 0.00 0.00 0.00 3,332.57 6,396.62 5,963,905.00 670,165.00 70° 18' 26.457 N 148° 37 16.539 W - plan misses target center by 8688.49ft at 11613.51ft MD (8625.35 TVD, 2507.08 N, 5755.01 E) - Polygon Point 1 0.00 3,332.57 6,396.62 5,963,905.00 670,165.00 Point 2 0.00 3,237.23 6,869.69 5,963,820.00 670,640.00 C -20C Fault 6 0.00 0.00 0.00 4,577.32 5,508.48 5,965,130.00 669,250.00 70° 18' 38.706 N 148° 37' 42.413 W - plan misses target center by 8869.84ft at 14300.00ft MD (8850.69 TVD, 4001.54 N, 5596.46 E) - Polygon Point 1 0.00 4,577.32 5,508.48 5,965,130.00 669,250.00 Point 2 0.00 4,050.98 5,792.09 5,964,610.00 669,545.00 C -20C Fault 7 0.00 0.00 0.00 4,107.80 5,938.38 5,964,670.00 669,690.00 70° 18' 34.085 N 148° 37' 29.885 W - plan misses target center by 8774.54ft at 11613.51ft MD (8625.35 TVD, 2507.08 N, 5755.01 E) - Polygon Point 1 0.00 4,107.80 5,938.38 5,964,670.00 669,690.00 Point 2 0.00 3,708.47 6,589.87 5,964,285.00 670,350.00 C -20C Target 2 0.00 0.00 8,845.00 4,309.98 5,382.62 5,964,860.00 669,130.00 70° 18' 36.077 N 148° 37' 46.090 W - plan misses target center by 375.36ft at 14300.00ft MD (8850.69 ND, 4001.54 N, 5596.46 E) 1 - Point C -20C Target 1 0.00 0.00 8,872.00 3,061.85 6,425.73 5,963,635.00 670,200.00 70° 18' 23.794 N 148° 37' 15.697 W - plan misses target center by 61.62ft at 13020.79ft MD (8872.51 TVD, 3095.81 N, 6477.15 E) - Point C -20C Fault 3 0.00 0.00 0.00 3,252.85 5,694.67 5,963,810.00 669,465.00 70° 18' 25.678 N 148° 37' 37.012 W - plan misses target center by 8657.74ft at 11613.51ft MD (8625.35 TVD, 2507.08 N, 5755.01 E) - Polygon Point 1 0.00 3,252.85 5,694.67 5,963,810.00 669,465.00 Point 2 0.00 3,095.76 6,476.49 5,963,670.00 670,250.00 10/14/2009 1:55:10PM Page 6 COMPASS 2003.16 Build 71 KIM BPPASSPORT B 0 . AKER BP Coil Tubing Report b P HUGHES 1 Company North America - ALASKA - BP Local Co- ordinate Reference Well C 20 -Slot 20 Project:: Prudhoe Bay TVD Reference > Mean Sea Level Site: PB C Pad * MD Reference: , C-20B @ 59.95ft (C -20B) Weft: C - 20 ortir "References True Weilbore: C -20C , Survey calculation Method Minimum Curvature Design Plan 3 ? atabase : EDM .16 Anc Prod - WH24P C -20C Fault 2 0.00 0.00 0.00 2,806.79 6,425.17 5,963,380.00 670,205.00 70° 18' 21.286 N 148° 37 15.720 W - plan misses target center by 8656.54ft at 11613.51ft MD (8625.35 TVD, 2507.08 N, 5755.01 E) - Polygon Point 1 0.00 2,806.79 6,425.17 5,963,380.00 670,205.00 Point 2 0.00 2,854.27 6,541.24 5,963,430.00 670,320.00 Point 3 0.00 2,949.24 6,773.38 5,963,530.00 670,550.00 • Point 4 0.00 2,854.27 6,541.24 5,963,430.00 670,320.00 C -20C Fault 1 0.00 0.00 0.00 2,374.27 6,075.63 5,962,940.00 669,865.00 70° 18' 17.035 N 148° 37' 25.923 W plan misses target center by 8632.33ft at 11613.51ft MD (8625.35 TVD, 2507.08 N, 5755.01 E) - Polygon Point 1 0.00 2,374.27 6,075.63 5,962,940.00 669,865.00 Point 2 0.00 2,584.65 6,290.28 5,963,154.99 670,075.00 C -20C Polygon 0.00 0.00 0.00 2,820.79 6,700.56 5,963,400.00 670,480.00 70° 18' 21.421 N 148° 37' 7.689 W - plan misses target center by 8682.69ft at 11613.51ft MD (8625.35 TVD, 2507.08 N, 5755.01 E) - Polygon Point 1 0.00 2,820.79 6,700.56 5,963,400.00 670,480.00 Point 2 0.00 3,173.57 6,578.21 5,963,750.00 670,350.00 Point 3 0.00 4,373.88 5,434.03 5,964,925.00 669,180.00 Point 4 0.00 4,153.71 5,209.16 5,964,700.00 668,960.00 Point 5 0.00 3,052.42 6,170.45 5,963,620.00 669,945.00 Point 6 0.00 2,725.29 6,263.34 5,963,295.00 670,045.00 Casin P oints Measured vertical " Casing Hole Depth Depth : . , Diameter. Diameter (R7 a Name {in) (in) 14,300.00 8,850.69 2 7/8" 2.875 ... 4.125 10/14/2009 1 :55 :10PM Page 7 COMPASS 2003.16 Build 71 EMI BPPASSPORT BAKER BP Coil Tubing Report bp HUGHES ,Company: North America - ALASKA - BP Local Co-ordinate ference :. Well C-20 - Slot 20 Project :, ; : .. i Prudhoe Bay TVD Reference Mean Sea Level Side . PB C Pad Mb Reference: ' C -20B @ 59.95ft (C -20B) Well .. C-20 North:Reference: True Wettbore; C -20C , Survey Calculation Method : t Minimum Curvature ' Design: Plan 3 Dakabase EDM .16 - Anc Prod WH24P Plan Annotation :: Measured : Vertical Local Coordinates 11,613.51 8,625.35 2,507.08 5,755.01 TIP Ili 11,645.00 8,646.90 2,490.06 5,770.42 KOP 11,665.00 8,660.06 2,479.07 5,780.72 End of 9 deg / 100 ft DLS 11,715.00 8,691.09 2,452.89 5,809.84 4 11,991.26 8,801.21 2,373.81 6,043.66 End of 15 deg / 100 ft DLS 12,291.26 8,843.68 2,451.62 6,325.12 6 12,591.26 8,870.19 2,681.58 6,508.14 7 12,658.57 8,872.58 2,745.85 6,527.78 8 12,958.57 8,872.58 3,040.03 6,504.63 9 13,258.57 8,870.98 3,264.43 6,313.00 10 13,508.57 8,867.42 3,443.70 6,142.90 11 13,758.57 8,862.10 3,622.95 5,972.82 12 14,008.57 8,856.38 3,802.20 5,802.75 13 14,300.00 8,850.69 4,001.54 5,596.46 TD Checked By: Approved By: Date: 10/14/2009 1:55:10PM Page 8 COMPASS 2003.16 Build 71 Azm,mawrmeNorin WELLBORE DETAILS: C -20C REFERENCE INFCRMA11ON t' Project: Prudhoe Bay Magnetic North. 2245' Frill Site: PB C Pad Co-odinaae (NIE) Reference'. Well C-20- Slot 20, True Nat Magnetic Fea 5 00292074503 V ertical 0 Well: C-20 S.00:57673200T OW References. Mean Sea level BAKER „ Wellbore: C•20C Dip DOe .eo s3 1 Section (VS) Reference: Slat- 20(0.00N, 0.00E) N p to i/pp5 Parent Tie C41 M e: C e Measured Dept Reference: C-2013 @ 5 03N, 0. C-20B) P 20/C - 20C) rm: ecr3.aaos Tie on MD: 11613.51 HUGHES Cal°rlalion Method: Minimum CurvaWre 4500 C 20C let WELL DETAILS: C -20 4350 C- 20/C -20C Ground Level: 0.00 � ,` C -�1 Fa 17 + +E/ +N / -S /-S -W Northing Easting Latittude Longitude Slot 4200 , 0.00 0.00 5960634.00 663813.00 70 °17'53.708N 148 °40'23.086W 20 SECTION DETAILS ANNOTATIONS 4051 Sec MD Inc Azi ssTVD +M -S +E/-W DLeg TFace VSec Target Annotation 3900 _ 1 11613.51 45.28 137.83 8625.35 2507.08 5755.01 0.00 0.00 1469.64 TIP . C -200 Fault 2 11645.00 48.34 137.83 8646.90 2490.06 5770.42 9.72 0.00 1450.21 KOP 3751 ■, ■�,••,• ■■ 3 11715.00 49.39 135.89 8690.09 2479.07 5780.72 9.00 305.00 1437.60 Endof9 deg /100ftDLS Q 1111, ®■R ■■ ■■ 4 11715.00 53.95 128.29 8691.09 2452.89 580809.84 15.00 305.00 140606.75 4 5 11991.26 80.00 92.59 8801.21 2373.81 6043.66 15.00 300.00 128828 Endofl5 deg/ 100ftDLS 3.11_ 1111 ■, ®�11 ■ ■E� 6 12291.26 84.25 56.59 8843.68 24551.62 2 632512 12.00 274.00 1316.03 6 7 12591.26 85.94 20.49 8870.19 2681.58 6527.8 12.00 271.00 1510.71 7 �a5o_ 1111 ■okli,1111 ■■ • 8 12658.57 1 .57 90.00 13.50 8872.58 2745.85 6527.78 12.00 3000.00 1570.60 0 8 9 12958.57 90.00 337.50 8872.58 304003 6504.63 12.00 270.00 1864.33 9 -} _ 10 1325857 9.0 301.50 8870.98 3264.43 6313.00 12.00 289.00 2118.59 10 I r 11 11 1 13508.57 911.01 1 331.51 1 8867.42 3443.70 6142.90 12.00 89.00 2324.68 11 1 L 1 1111 12 13758.57 91.37 301.50 8862.10 3622.95 5972.82 12.00 271.00 2530.74 12 7 1 13 14008.57 91.19 331.51 8856.38 3802.20 5802.75 12.00 90.00 2736.80 13 C _ � 14 14300.00 90.97 296.53 8850.69 4001.54 5596.46 12.00 270.00 296893 TD 3111 ■ ■ ■ ■ ■" : . _ 11�r1d11K 1 ■ ■„ ■1'= �, MC2 CA 2711 11,11 ■■ ■�li,� -- - 2551 ■■,� ERE,■l 2,11 ■■ � , ■ ■■ 2251 1 e ` ■�� , 4350 4500 4650 4800 4950 5100 5250 5400 5550 5700 5850 6000 6150 6300 6450 6600 6750 6900 7050 West( -) /East( +) (150 ft/in) 8 521 1■■■■■■ ��■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■! ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ 8581 1■■■■ ■ ■ I ■ ■■■ ■ ■■■ ■■ ■ ■ ■■ ■ ■ ■11■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ ■■ 1■ ■■■■■■■■■■■■■ ■■■■ ■■■■ ■■■■■■■ ■■■ • 8711 1■ ■ ■ ■m ICOP B ■ ft ■■■■ ■■■■■■ ■■■■■■„ ■■■■■ ■■■■■■■ 67,11 1111 NMI ■■■ ■1111■ ■1111 ■■ ■1111■ ■1111■ ■■1111■ ■■ ai 1II ■ElBIB ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ ■ ■■ ■ ■ ■ ■ ■■ ■ ■■ ■ ■ ■ ■ ■II 1. 6621 I/ ®® ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ ■11.11■. ■ - ' / ■�!.. - -- - - - - ---- - - ■ ■ ■: 1111■■■ y 8 1 ■■■■ ■■■i ■ ■■■ii ■ ■■ 10 ■■■■■■®■■ ■ ■ ■■ ■■■■ H X111 1■■■ ■■■ ■ ■■■■�I■■■ ■■ ■ ■■■■■■ 11111....111111111.. • 1.11■ ■ ■■■ ■■■■■ ■■1111 ■■■■ ■ ■■■■ ■ ■ ■ ■ ■ ■ ■ ■■■■ ■!aid ©11 Mean . P11 1111 ■1111■1111 ■ ■■ ■1111 ■1111 ■■ ■1111 ■■ ■1111■ ■■ ■■1111■ ■ ■■ • 1140 1200 1260 1320 1380 1440 1500 1560 1620 1680 1740 1800 1860 1920 1980 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 Vertical Section at 350.00° (60 ft/in) .wnvmawT,. North WELLBORE DETAILS: C -20C REFERENCEINFWMATION Project: Prudhoe Bay MagneucNort. 2249 EMI PB C Pad Ma��c Feu 500292074503 Co- ordinate (N6E) Reference: Site PB C Pad. True North 4) p uegm.576732anT Vertical (TVD)Reference: C- 206 @59.95ft (C -2ce) BAKER . Y1 Wellbore: C ?20C S Dip Angle ao ea° Section 0/S) Reference: Slot - 2O)3186.BON. 1362286) Plan:Plan3(C- 2NC -20C) :gym Parent on MD: 11613.51 M +red Depth Reference: c -toe 5ss56(C -2W) Calculation Method: Minimum Curvature HUGHES 8 2 ■�■N_ EM ; E� ' 8111 i ■E # ■_ ■ ■■11MILE i t i� :, 51 iu ■ ■- ■■,,:.■■■■■■.,■- : a 1 111611111EM 91 BFB1 ■■II.■ ■ ■ ■ ■ ■.EMI -� 15- 33/15 -33 76 l 7s11 ■■" ; E -19 :PI■■.-„■■■I■■■- IIIIIIIIIIII 7351 ■■ ■II oo NIVI i I■. ■ ■ ■ ■ ■■- - I r I • 7211 ■■■a i AU � !1ii ' ■�� rminsanEN ■ ■■ ■ 7051 ■ ■1101. >o •.� ■ ■ ■ ■ ■---._. ,. I f. • '. O 11 ■■/ ;• =I- ■ ■ ■ ■ ■ ■■■"\,\ ■\![_-;: %' - , 6751 / ■�-, ■ ■IMEI ■ ■ ■,.,,.,.B N - - '.. \ D O riimmi ■■ ■ ■ ■ ■M ■ ■ ■ ■ ■ ■■/ 8■\..E■_ ii a: 64 1 � ��' , , 03/1 6311 ,.11 MIIIII �� ■■ MIOME,,. 15 r - 6151 ■ ■ ■ ■ ■ ■ ■■■ ■ ■,�,■ ■■1111,,1, .�� 1 5- :3 /IS•33PE i ��g o ,� 20/G20B 111 III , Vi OHO .1 C2 581 57W � ■�` 5551 I ■ ■ fb 52 1 ■■■•%'/■-■..//II.■■'.■E18- 5111 ■.! % / ECCI ■■iiiii■■ ■1011■■ 49 1 !N': / ■EIMMIE ■■■■■■■■■■ 4800 ■ !H!iiI1IIIIIUHI _ 5 W ill. 1 1■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ II ■ C -01/C ItB C- 20B @.- ( 70R) 4800 4950 5100 5250 5400 5550 5700 5850 6000 6150 6300 6450 6600 6750 6900 7050 7200 7350 7500 7650 7800 7950 8100 8250 8400 8550 8700 8850 9000 9150 9300 9450 9600 9750 ^ 9900 10050 10200 10350 West( - )/East( +) (150 ft/in) Project: Prudhoe Bay ANTI - COLLISION SETTINGS co3awroETALa: NomArnnn- AUB"A -BP _ 0 Site: el P B C C - 2 Pa Inter "C"ALASKA 1cA r�`' �� W 0 th n Method: Ra 116 interval: 30 1161351 To 2 4 Depth Range From: Centre D is to nce: 1627.30 14300.00 cmcvie4m31etl,04: Mm�A.oacw+t.. BAKER Results Limited By: Centre Dta error Syrm. 1SCr/SA Weore: C -20C Reference: Plan: Plan 3 (C- 20/C -20C) 6s,o sal Eiiq Cylinder Plan: PIallbn3(C- 2ac$OC) Warning Met od. aw.e...a HUGHES WELLDETAILS: C•20 Gr Level: 0.00 *N745 *E-W Nothing Eaeong Lat= LangihMe S lot From Colour To MD 0.00 0.00 5960434.00 663843.0 70 ° 1T 53. 708N 148 ° 40'23.0862 20 SECTIDNfTALS O Sec MD Inc Aa TVD +NFS +E/W DLeg TFace VSec Target _ 1 11813.51 45.28 13783 8685.30 2507.08 575501 0.00 000 1469.64 2 1164500 4834 137.83 870685 2490 577042 9.72 0.00 145021 3 1166500 4939 135.89 8720.01 247907 5780.72 9.00 30500 1437.60 , 4 1171500 53 95 128.29 8751 04 245289 5809 84 15.00 30500 1406.75 6 11291 26 84.25 56.59 8903.63 245 62312 12.00 27400 1318.03 - 6 12291.26 84 25 5fi.5 65 8903 63 245162 25. 12.00 27400 1318.03 3 176 7 1259126 8500 20.49 8930.14 268158 6506.14 12.00 27100 1510.71 8 12658.57 90.00 5 6527.76 78 1200 30000 157850 160 9 13508.57 901 337.50 892253 32 6142 12.00 28 232 .68 \ \ 10 1325857 90.58 30 50 893253 27458 01.50 893893 3 631300 12.00 27100 2116.59 11 13508.57 911 01 331.51 8927.37 344 614290 0 12.00 6900 232468 12 1375857 91.37 30150 892205 362 5 5972.82 1200 27100 2530.74 - 144 - 13 1400857 91.19 331.51 &916.33 3602.20 5802.75 12.00 9800 2736.80 \ \ 11 1430000 90.97 296.53 89182 4001.54 559648 12.00 270.00 2968.93 • �� : 4 = \ SURVEY PROGRAM ii - Dale: 09-10 13700:00:00 Validated: Yes Version: ��j \\\\\\‘\\\‘‘6 Depth From Depth To Survey /Pogo Tool 92.75 8892.75 1 Camera based gyro multisho (C -20)C �� (C-MS , 48 - \\\\% 3: MW- M 11 MWD WD 1 14 11613 Plan - 171/7/77‘,/a, - 5 .00 300 00 51 3 (C D 20C1 Standard(C -20A) / / 32 ,s \‘\‘‘‘\%%\%11 114111111111111111111 , � LEGEND 0 I r Gat, 6209, G20 V3 A G2U. C- 20A G0VR VI - � At GAG-MC-03 VS GOa, COB, C-09 V1 • \\\ '�19 119O U 72 - j /////////////////, C08,C09q COBA Vt t w \\ \ I0, to `\ \;•. -, Gi2 C -12, G12 V1 G w etw 12A \`\ ` +� c12, C-17.13 1MVO o 2, t �_. -. 104 120 o C-13, c -13, C -13 V1 \\ G194G131.G13Aw CAA GU, C -14 V2 1ZO - � G22. C-2bA G22AVe 136 3G3 +r 113 c- 37,C7A eseewge G3), C 37A - . C.370.1, C37APa1 V 1�JZ -- G3).C VI j ;533 1 , 533 5 -33A a -= i/ 5-33.;533 15S9A V2 168 -- 1 533. 5333. 33a V2 =I ._ ,SL, 15 15330131 V, 1533. 15331 15331 V1 Pe 3 C- 2O/C -ZOA `- zoo C- 20 /C -20B - 180 Travelling CylinderAzimuth (TFO +AZI) [ °] vs Centre to Centre Separation [16 ft/in] r r'I BAKER HUGHES North America - ALASKA - BP Prudhoe Bay PB C Pad C -20 C -20C Plan 3 Travelling Cylinder Report 13 October, 2009 � b p NM I BPPASSPORT • BAKER Travelling Cylinder Report 0 bp HUGHES company:..., : , .: " North America - ALASKA - BP Local Co- ordinate Reference :. Site PB C Pad Project: Prudhoe Bay TVD Reference: ' C -20B @ 59.95ft (C -20B) Reference Site: ; PB C Pad MD Reference: . ' : C -20B @ 59.95ft (C -20B) Site Error: , . .! 0.00ft North Reference: - ' .True Reference Well < C -20 Survey Calculation Method: Minimum Curvature Welt: Error. 0.00ft Output errors are at ... : < ! 1.00 sigma Reference Weilbore C -20C Database: EDM .16 - Anc Prod - WH24P ReferenceDesgn: Plan 3 Offset TVD Reference :.. Offset Datum Reference ::.I. .- Plan 3 Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 11,613.51 to 14,300.00ft Scan Method: Tray. Cylinder North Results Limited by: Maximum center- center distance of 1,627.31 ft Error Surface: Elliptical Conic Survey teal Program . :n Date .';10f1312009 From To ( ° : : (ft} :; Survey(YWCellbore) Tool N D escription 92.75 8,892.75 1 : Camera based gyro multisho (C -20) CB- GYRO -MS Camera based gyro multishot 8,990.00 11,613.51 3 : MWD - Standard (C -20A) MWD MWD - Standard 11,613.51 14,300.00 Plan 3 (C -20C) MWD MWD - Standard Casing Pointe Measured . Vertical .. Cas Hate De h Deptfr Diameter Diameter (ft) , . , . . Name : °.' (In) ,(in) 14,300.00 8,910.64 2 7/8" 2.875 4.125 Summary, : , ... . ° : . Reference Offset Centre to --:"Fu.".".".."'" All Measured Measured Centre Distance Deviation W ing Site Name.. . • . Depth Depth Distance . (ft) from`Pian Offset Well - ,Wellbore Design (it) . , (ft) (it) ( NF : .. PB C Pad C -03 - C-03A - C -03A 11,660.42 12,153.00 469.09 790.25 206.75 Pass - Major Risk C -09 - C -09 - C-09 Out of range C -09 - C -09A - C -09A Out of range C -09 - C-09A - Plan #5 Out of range C -10 - C -10 - C -10 Out of range C -10 - C -10A - C -10A Out of range C -12 - C -12 - C -12 Out of range C -12 - C -12A - C -12A Out of range C -12 - C- 12APB1 - C- 12APB1 Out of range C -12 - C -12B - C -12B Out of range C- 13- C- 13 -C -13 / Out of range C -13A - C -13A - C -13A ✓ / Out of range C -14 - C -14 - C -14 12,138.87 11,800.00 236.77 2,247.61 - 2,009.90 FAIL - Major Risk C -20 - C -20 - C -20 13,225.00 12,200.00 842.31 218.81 635.77 Pass - Major Risk C -20 - C -20A - C -20A 11,650.00 11,650.00 0.02) 0.74 -0.70 FAIL - Major Risk C -20 - C -20B - C -20B 11,650.00 11,650.00 0.02 0.74 -0.70 FAIL - Major Risk C -22 - C -22A - Plan #6 extend Out of range C -37 - C -37A - C -37A 13,450.00 12,590.00 526.52 203.35 330.88 Pass - Major Risk C -37 - C -37A - Plan #3 13,437.05 13,109.49 57.40 226.45 - 154.43 FAIL - Major Risk C -37 - C- 37APB1 - C- 37APB1 11,613.51 12,224.00 366.33 913.80 - 513.61 FAIL - Major Risk PB DS 15 15 -33 - 15 -33A - 15-33A 14,215.23 14,111.00 792.77 639.18 157.92 Pass - Major Risk 15 -33 - 15 -33B - 15 -33B 13,058.99 12,699.00 481.46 285.07 196.99 Pass - Major Risk CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 10/13/2009 5 :27 :24PM Page 2 of 19 COMPASS 2003.16 Build 71 • iffai II 1 BPPASSPORT • BAKER Travelling Cylinder Report 0 bP HUGHES Company: North America - ALASKA - BP Local Co- ordinate Reference: Site PB C Pad Project: Prudhoe Bay TVD Reference: C -20B @ 59.95ft (C -20B) Reference Site: PB C Pad MD Reference: C -20B @ 59.95ft (C -20B) Site Error: 0.00ft North Reference: True Reference Well: C -20 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore C -20C Database: EDM .16 - Anc Prod - WH24P Reference Design: Plan 3 Offset TVD Reference: Offset Datum Reference Depths are relative to C -20B @ 59.95ft (C -20B) Coordinates are relative to: PB C Pad Offset Depths are relative to Offset Datum Coordinate System is US State Plane 1927 (Exact solution), Alaska Zone 04 Central Meridian is 150° 0' 0.000 W ° Grid Convergence at Surface is: 1.25° Ladder Pict 1600 I I I I I i 1 1 1 1 I 1 1 I 1 1 1 1 I I 1 1 1 I 1 200 J J J _ _ I 1 1 1 I I 1 1 1 1 I 1 1 I 1 I I I I I n c 1 1 1 1 1 I I .S 1 1 I 1 1 �� I 76 1 1 1 1 1 I N I I I I I _ 1 1 a) i 1 1 1 1 i Cr) 1 1 1 1 I I 0) 1 1 1 I I i I I I I N 800 I I I 1 I I C) 1 1 1 1 1 O 1 1 1 1 1 I 1 I 1 1 1 E J J _ _ _ _ _ J J _ ■_ _ _ J _ _ � _ _ _ J C 1 - -- 1 1 1 I_ 1 a) I 1 1 1 I 1 U 1 1 1 1 1 1 1 1 1 400 II I 1 1 1 1 I I 1 I 1 I L 1 1 1 1 ) I I I 1 I ip I 1 1 1 1 I 1 I I I 1 ff 1 1 I 1 I 1 1 1 I I 0 1 0 2500 5000 7500 10000 12500 15000 M easured Depth LEGEND _,j— C- 03,C- 03A,C- D3AVIS $ C- 20,C- 20B,C -20B V3 —A 15.33,16.33A,15 -33AV2 C -14, C -14, C -14 V2 44- C -37, C -37A, C -37A V4 --X.-- 15- 33,15 -33 B.15-338 V2 -g-- C-20. C-20 , C-20 V2 C-37. C -3 7 A, P Ia n /03 V 1 C-20, C-20A, C-20AV1 C-37,C-37AP B 1 ,C-37AP B 1 V1 CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 10/13/2009 5:27:23PM Page 19 of 19 COMPASS 2003.16 Build 71 • • C - 20C - Coiled Tubing Dr•g All Measurements are from top of Riser 3/30/2009 a) V) CC 18-02B 1 top of bag 1 BAG 7 1/16" 5000 psi. bttm of bag middle of slips Blind /Shears TOTs middle of pipes 7 1/16" 5000psi I 2 3/8" combi ram /slips 1 1 Mud Cross Mud Cross middle of flow cross 7 1/16" 5000psi 1 1 middle of blind/shears I variable bore pipe 3 1/2 " -2 3/8" •• 1 1 TOTs middle of pipe /slips I 2 318" combi ram /slips 7 1/16" 5000psi [ Swab Valve 1 Flow Tee October 22, 2009 Alaska Department of Natural esources Land Administration System ak Page 1 of/ lir ,Alaska Mapper Land Records /Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28305 Printable Case File Su See Township, Range, Section and Acreage? New Search ®Yes 0 N LAS Menu 1 Case Abstract 1 Case Detail 1 Land Abstract File: ADL 28305 `.iar . Search for Status Plat Updates As of 10/30/2009 Customer: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER - ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/19/1965 Total Acres: 2480.000 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: 17 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 014E Section: 18 Section Acres: 599 Meridian: U Township: O11N Range: 014E Section: 19 Section Acres: 601 Meridian: U Township: 011N Range: 014E Section: 20 Section Acres: 640 Legal Description 05 -28 -1965 * * * SALE NOTICE LEGAL DESCRIPTION* * * C14-126 11N 14E UM 17,18,19,20 2480.00 U- 3- 7 End of Case Summary Last updated on 10/30/2009. http: / /dnr.alaska.gov /projects /las /Case Summary.cfm ?FileType= ADL &FileNumber = 283... 10/30/2009 • • TRANSMITTAL LETTER CHECKLIST WELL NAME , G -o7Oe PTD# c,2o9/,.rO / Development Service Exploratory Stratigraphic Test Non - Conventional Well FIELD: /,L� POOL: / -. IY �/L Circle Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK ADD -ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. , API No. 50- - - API number are between 60 -69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(0, all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non - Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1/11/2008 RllpllIllMIIIIIIIIIIB Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 Well Name: PRUDHOE BAY UNIT C -20C Program DEV Well bore seg ❑ PTD #: 2091300 Company BP EXPLO RATION ( ALASKA) INC Initial Class/Type DEV / PEND _GeoArea 890 Unit 11650 On /Off Shore On Annular Disposal ❑ Administration 1 Permit fee attached NA - - - 2 Lease number appropriate Yes 3 Unique well name and number YeS 4 Well located in a defined pool Yes 5 Well located proper distance from- drilling unit boundary Yes - - - - 6 Well located proper distance from other wells Yes - - - - - 7 Sufficient acreage available in drilling unit Yes 2560 acres. - - 8 If deviated, is wellbore plat included Yes 9 Operator only affected party Yes 10 Operator has appropriate bond in force _ - - - - Yes Blanket Bond # 6194193. - 11 Permit can be issued without conservation order Yes Appr Date 12 Permit can be issued without administrative approval Yes ACS 10/30/2009 13 Can permit be approved before 15 -day wait Yes 14 Well located within area and strata authorized by Injection Order # (put IO# in comments) (For NA IP 15 All wells within 1/4 mile area of review identified (For service well only) NA 16 Pre - produced injector: duration of pre production less than 3 months (For service well only) NA 17 Nonconven. gas conforms to AS31.05.030(j.1.A),(j,2.A -D) NA 18 Conductor string provided NA Conductor set in C 20B Engineering 19 Surface casing protects all known USDWs - - NA Surface casing set in C -206 20 CMT vol adequate to circulate on conductor & surf csg NA - - - Surface casing cemented to GL in C -20B 21 CMT vol adequate to tie-in long string to surf csg NA Production casing set in C -206 22 CMT will cover all knownproductive horizons Yes Liner to be cemented back to hanger. 23 Casing designs adequate for C, T, B & permafrost Yes 24 Adequate tankage or reserve pit Yes Rig equipped with steel pits. All waste to approved disposal wells. 25 If a re- drill, has -a 10403 for abandonment been approved Yes 309 -364 26 Adequate wellbore separation proposed Yes Proximity analysis performed. Closest well is C -20B and paths diverge. - 27 If diverter required, does it meet regulations NA - Wellhead in place. -BOP stack already installed. Appr Date 28 Drilling fluid program schematic & equip list adequate Yes Max fm _pressure = 3240 psi (7.1 _ppg) -_ Will drill with 8.6 ppg mud GLS 11/3/2009 29 BOPEs, dothey meet regulation - - - Yes - 30 BOPE press rating appropriate; test to (put psig in comments) Yes MASP = 2359 psi... Will test BOP to 3500 psi 31 Choke manifold complies w /API RP -53 (May 84) Yes - 32 Work will occur without operation shutdown Yes 33 Is presence of H2S gas probable Yes - H2S on C pad. Rig has sensors and alarms. 34 Mechanical condition of wells within AQR verified (For service well only ) NA 35 Permit can be issued w/o hydrogen sulfide measures - - - - No Max level H2S on C pad is 25ppm for well C -39A (4/16/07) - - Geology 36 Data presented on potential overpressure zones NA Appr Date 37 Seismic analysis of shallow gas zones - - NA ACS 10/30/2009 38 Seabed condition survey(if off-shore) NA - - 39 Contact name /phone for weekly_ progress reports [exploratory only] - _ NA Geologic Engineering I.lic Commissioner: Date: Co issione : Date Cs Date " -/ ,/ • / /"3 "may' • • Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically • organize this category of information. • tapescan.txt * * ** REEL HEADER * * ** MWD 10/05/10 BHI 01 LIS Customer Format Tape * * ** TAPE HEADE * * ** MWD 10/03/04 3029064 01 3" CTK ** LIS COMMENT RECORD * ** 1111111111111111111 Remark File Version 1.000 1111 11111111111111 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 11181.0000: Starting Depth STOP.FT 14354.0000: Ending Depth STEP.FT 0.5000: Level Spacing NULL. - 999.2500: Absent value COMP. COMPANY: BP Exploration (Alaska), Inc. WELL. WELL: C -20C FLD . FIELD: Prudhoe Bay Unit LOC . LOCATION: 70 deg 17' 53.708 "N 148 deg 40' 23.086 "w CNTY. COUNTY: North Slope Borough STAT. STATE: Alaska SRVC. SERVICE COMPANY: Baker Hughes INTEQ TOOL. TOOL NAME & TYPE: 3" CTK DATE. LOG DATE: 04 Mar 2010 API . API NUMBER: 500292074503 -Parameter Information Block #MNEM.UNIT Value Description SECT. 19 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 59.95 Feet Above Perm. Datum DMF . DF Drilling Measured From EKB .F 0 Elevation of Kelly Bushing EDF .F 59.95 Elevation of Derrick Floor EGL .F 0 Elevation of Ground Level Page 1 069 - 106 0'3-1 S 4 tapescan.txt CASE.F N/A Casing Depth OS1 . DIRECTIONAL Other Services Line 1 Remarks (1) All depths are Measured Depths (MD) unless otherwise noted. (2) All depths are Bit Depths unless otherwise noted. (3) All True vertical Depths (TVDSS) are subsea corrected. (4) All Formation Evaluation data is realtime data. (5) Baker Hughes INTEQ utilized CoilTrak downhole tools and the Advantage surface system to 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 has been depth adjusted to a Primary Depth Control (PDC) log provided by schlumberger GR DIL and GR CSG dated 04 Jul 1997 above the Kick off Point of 11649 ft MD per Adam Van Holland with BP Exploration (Alaska), Inc. The MWD data is the PDCL for well C -20C. (8) The sidetrack was drilled from C -20A through a milled window in a 4 1/2 inch liner. Top of window 11648 ft.MD (8649.2 ft.TVDSS) Bottom of window 11656 ft.MD (8654.1 ft.TVDSS) (9) Tied to C -20A at 11200 feet MD (8273.2 feet TVDSS). (10) The interval from 14319 ft to 14354 ft MD (8844.1 ft. to 8844.4 ft. TVDSS) was not logged due to sensor to bit offset at well TD. MNEMONICS: GRAX -> Gamma Ray [MWD] (MWD -API units) ROP AVG -> Rate of Penetration, feet /hour RACLX -> Resistivity (AT)(LS)400kHz- Compensated Borehole Corrected (OHMM) RACHX -> Resistivity (AT)(LS)2MHz- Compensated Borehole Corrected (OHMM) RPCLX -> Resistivity (PD)(LS)400kHz- Compensated Borehole Corrected (OHMM) RPCHX -> Resistivity (PD)(LS)2MHz- Compensated Borehole Corrected (OHMM) TVDSS -> True Vertical Depth (Subsea) CURVE SHIFT DATA BASELINE, MEASURED, DISPLACEMENT 11180.8, 11182.4, ! 1.6416 11190.8, 11192.1, ! 1.23145 11194.7, 11195.6, ! 0.821289 11198.6, 11199.7, ! 1.02637 11201.9, 11203, ! 1.02637 11203.4, 11203.6, ! 0.205078 11205.9, 11204.2, ! - 1.6416 11208.1, 11207.1, ! - 1.02637 11210.2, 11209.2, ! - 1.02637 11218.2, 11217.2, ! - 1.02637 11224.8, 11222.3, ! - 2.46289 11237.5, 11237.1, ! - 0.410156 11242, 11241.6, ! - 0.410156 11245.9, 11244.7, ! - 1.23145 11247.5, 11247.1, ! - 0.411133 11250.4, 11249.6, ! - 0.820312 11251.9, 11251.4, ! - 0.411133 11253.5, 11252.9, ! - 0.616211 11263.6, 11262.5, ! - 1.02637 11264.8, 11264, ! - 0.820312 11267.7, 11267, ! - 0.615234 11270.6, 11269.5, ! - 1.02637 11282.9, 11281.5, ! - 1.43652 Page 2 411 411 tapescan.txt 11284.1, 11282.9, ! - 1.23145 11294, 11292.9, ! - 1.02637 11297.5, 11296.4, ! - 1.02637 11301, 11300.3, ! - 0.615234 11308.5, 11307.3, ! - 1.23145 11310.8, 11310.4, ! - 0.411133 11314.5, 11313.7, ! - 0.821289 11314.5, 11313.7, ! - 0.821289 11315.4, 11315.8, ! 0.411133 11320.3, 11319.9, ! - 0.411133 11324.4, 11323.6, ! - 0.820312 11327.3, 11326.6, ! - 0.616211 11643.5, 11643.1, ! - 0.411133 11647.4, 11647.2, . - 0.205078 EOZ END ! BASE CURVE: GROH, OFFSET CURVE: GRAX Tape subfile: 1 112 records... Minimum record length: 10 bytes Maximum record length: 132 bytes * * ** FILE HEADER * * ** MWD .001 1024 ** LIS COMMENT RECORD * ** 111111!!!!!!IIIIIII Remark File Version 1.000 The data presented here is final and has been depth adjusted to a Primary Depth Control (PDC) log provided by schlumberger GR DIL and GR CSG dated 04 Jul above the Kick off Point of 11649 ft MD per Adam van Holland with BP Exploration The MWD data is the PDCL for well C -20C. * 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 Page 3 S tapescan.txt 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 = 11181.000000 Tape File End Depth = 14354.000000 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 * ** MMIHHMMIIIIIIIIIMMI 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 Page 4 410 411 tapescan.txt 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 = 11180.750000 Tape File End Depth = 14354.000000 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 10/03/04 3029064 01 * * ** REEL TRAILER * * ** MWD 10/05/10 BHI 01 Tape Subfile: 4 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes 0 Page 5 A F 410 411 tapescan.txt Tape Subfile 1 is type: LIS 0 Tape subfile 2 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 11181.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 11181.5000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 14354.0000 - 999.2500 109.6522 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 11181.000000 Tape File End Depth = 14354.000000 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 11180.7500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 11181.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 14354.0000 - 999.2500 109.7000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 11180.750000 Tape File End Depth = 14354.000000 Tape File Level spacing = 0.250000 Tape File Depth units = feet 0 Tape Subfile 4 is type: LIS Page 6