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Home My WebLink About206-0797. 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 Z-26A Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 206-079 50-029-21945-01-00 12220 Conductor Surface Intermediate Liner Liner 9103 80 2585 10951 651 1492 12076 20" 13-3/8" 9-5/8" 7" 3-1/2" x 2-7/8" 9010 37 - 117 37 - 2622 35 - 10986 10739 - 11390 10728 - 12220 37 - 117 37 - 2621 35 - 8599 8419 - 8873 8411 - 9103 None 2260 4760 5410 13890 12076 5020 6870 7240 13450 11336 - 12113 4-1/2" 12.6# 13Cr80 33 - 10793 8840 - 9030 Structural 4-1/2" Baker S-3 Perm Packer 10653, 8357 10653 8357 Stan Golis Sr. Area Operations Manager Josh Stephens Josh.Stephens@hilcorp.com 970.779.1200 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 0028262 33 - 8457 N/A N/A 90 107 189 245 1043 1760 1164 1048 302 292 N/A 13b. Pools active after work:Prudhoe Oil No SSSV Installed 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 to the best of my know January 12, 2023 By Samantha Carlisle at 3:36 pm, Jan 12, 2023 PBU Z-26A Sundry Number 206-079 Perforate N/A WCB 10-30-2023 RBDMS JSB 011323 DSR-1/12/23 PRUDHOE BAY, PRUDHOE OIL ACTIVITY DATE SUMMARY 12/31/2022 ***WELL FLOWING ON ARRIVAL*** S/I WELL LRS PUMP FREEZE PROTECT ON FLOWLINE RUN KJ, 3' x 1.75 stem, 3.24 cent, bull nose TO DEPLOYMENT SLEEVE, 10,728' MD RAN 30' X 2.29'' DMY GUNS S/D @ 11388'MD RAN 20' X 2.29'' DMY GUNS S/D @ 11388'MD, WORK TO 11399'MD RAN 10' X 2.29'' DMY GUN S/D @ 11388'MD, WORK TO 11429'MD ***WELL LEFT S/I ON DEPARTURE*** 1/4/2023 FP tbg F/L pre E-line (job continues next day) 1/5/2023 Standby for weather 1/5/2023 ***WELL S/I ON ARRIVAL AND*** (JOB SCOPE PERFORATE 60' OF 2'' GEO RAZOR XLS XDP GUN) RIG UP YJ ELINE. DOWN FOR WEATHER HIGH WING 25 MPH CONSISTENT AND 30 MPH GUSTS ***JOB CONTINUE ON 1/06/2023*** 1/5/2023 (Job continued from previous day) FP Tbg and F/L pre E-line Pumped 38 bbls crude down tbg and 8 bbls 60/40 down F/L Tags hung Well shut in upon departure FWHP's=500/1100/0 1/5/2023 Standby for weather 1/6/2023 standby For weather 1/6/2023 ***JOB CONTINUED FROM 1/5/2023*** STBY FOR HIGH WINDS TRAVEL BACK TO THE SHOP ***JOB CONTINUE 1/7/2023*** 1/7/2023 ***JOB CONTINUED FROM 1/6/2023*** (JOB SCOPE: ADPERF 60') PT PCE 300 PSI LOW /3000 PSI HIGH RIH W/ 2.0" x 10' GEO RAZOR XLS XDP PERF GUN #1. DEVIATE OUT AT 11435'. CCL TO TOP SHOT= 6.7'. CCL STOP DEPTH= 11379.3'. PERFORATE INTERVAL: 11386' - 11396'. POOH. ALL SHOTS FIRED. RIH W/ 2.0" x 20' GEO RAZOR XLS XDP PERF GUN #2. CCL TO TOP SHOT= 6.7'. CCL STOP DEPTH= 11359.3'. PERFORATE INTERVAL: 11366' - 11386'. POOH. ALL SHOTS FIRED. LAY LUB DOWN FOR THE NIGHT. ***CONTINUE JOB ON 1/8/23*** 1/7/2023 TFS unit 4 Standby for weather 1/8/2023 ***JOB CONTINUED FROM 1/8/2023*** (JOB SCOPE ADPERF 30') PT PCE 300 PSI LOW/3000 PSI HIGH RIH W 2.0'' x 30' GEO RAZOR XLS XDP PERF GUN#3, DEVIATE OUT 11486.1' CCL TO TOP SHOT=7.5' CCL STOP DEPTH=11328.5' PERFORATE INTERVAL: 11336'-11366', ALL SHOT'S FIRED WELL READY FOR POP AND TEST ***WELL S/I ON DEPARTURE*** Daily Report of Well Operations PBU Z-26A New perfs listed on new WBS, below. -WCB PERFORATE INTERVAL: 11386' - 11396'. POOH. PERFORATE INTERVAL: 11336'-11366', ALL SHOT'S FIRED PERFORATE INTERVAL: 11366' - 11386'. 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y Samantha Carlisle at 8:13 am, Apr 20, 2022 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:(///()76,21'(3$5785(3$'23127,),('2)67$786 :(//)/2:,1*21$55,9$/ $'3(5) 0,58(/,1( 3(5)25$7( :,7+63)3+$6(+6&: *(2'<1$0,&65$=25&+$5*(6 5'02(/,1( :(//)/2:,1*21'(3$5785( -2%&203/(7( 'DLO\5HSRUWRI:HOO2SHUDWLRQV 3%8=$ STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS MAY 0 7 2019 1. Operations Performed Length: Size: /� an Abandon ❑ Plug Perforations � Fracture Stimulate ❑ Pull Tubing ❑ Ah Q C Operations h tl�' Wl lm--^� l",❑ Suspend ❑ Perforate ❑ Other Stimulate ❑ Aller Casing ❑ Change Approved Program ❑ Plug for Redrill ❑ Perforate Nev, Pool ❑ Repair Well ❑ Re-enter Susp Well ❑ Other: ❑ 2. Operator Name: BP Exploration (Alaska), Inc 4. Well Class Before Work measured 5. Permit to Drill Number: 206-079 3. Address: P.O. Box 196612 Anchorage, Development 0 Exploratory ❑ feet Packer AK 9951 M612 Stratigraphic ❑ Service 1 6. API Number: 60-029-21945-01-00 7. Property Designation (Lease Number): ADL 0028262 B. Well Name and Number: PBU Z -26A 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: 7' 10739 - 11390 8419-8873 7240 PRUDHOE BAY. PRUDHOE OIL Liner 11. Present Well Condition Summary: Length: Size: MD: TVD: Buret: Collapse: Total Depth: measured 12220 feet Plugs measured 12076 feet true vertical 9103 feet Junk measured None feet Effective Depth: measured 12076 feet Packer measured 10653 feel true vertical 9011 feet Packer true vertical 8357 feet Casing: Length: Size: MD: TVD: Buret: Collapse: Structural Tubing Pressure Prior to well operation: 327 4285 1748 Conductor 80 20" 37-117 37-117 595 Surface 2585 13-3/8" 37-2622 37-2621 5020 2270 Intermediate 10951 9-5/8" 35-10986 35-8599 6870 4760 Liner 651 7' 10739 - 11390 8419-8873 7240 5410 Liner 1492 3-1/2" x 2-7/8" 10728 - 12220 8410-9103 Perforation Depth: Measured depth: 11464 -12113 fast True vertical depth: 8911 -9030 feet 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): 4-1/2" 12.6# 13Cr80 33-10793 4-1/2" Baker S-3 Perm Packer 10653 Treatment descriptions including volumes used and final pressure: No SSSV Installed 33-8457 8357 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 327 4285 1748 636 289 Subsequent to operation: 469 2641 595 757 308 14. Attachments: (mq..d per 20 Mc 25.o70.25.071, 825.281) Daily Report of Well Operations 0 Copies of Logs and Surveys Run ❑ Printed and Electronic Fracture Stimulation Data ❑ 15. Well Class after work: Exploratory ❑ Development M Service ❑ Stratigraphic ❑ 16. Well Status after work: 1 GSTOR ❑ WINJ ❑ WAG ❑ Oil 0 Gas ❑ WDSPL ❑ GINJ ❑ SUSP ❑ SPLUG ❑ 17. 1 hereby cer8fy that the foregoing is true and correct to the best of my knowledge. Authorized Name: Peru, Cale Sundry Number or N/A if C.O. Exempt: WA Contact Name: Peru, Cale Authorized Title: Petroleu Engineer Contact Email: Cale.Peruabp.com Authorized Signature: Date: 5 , I Contact Phone: +1 9075644522 Form 10.404 Revised 04/2017 ��y RBDMS� MAY 002019 Awa 'yu " Original °^" Daily Report of Well Operations PBU Z -26A Ar.TIVITYr1ATF RI IMMARY 9/15/2018 CTU #9 - 1.75" Coil Objective: Drift/Log, set CIBP MIRU ...In Progress... CTU #9 - 1.75" Coil ***Continue from 9/15/18*** Objective: Drift/Log, set CIBP Complete rig up. Make up 2.2" Memory GR/CCL in a carrier with 2.25" DJN and RIH. Tag TO and log up to 10500', painting a green/white tie-in flag at 12000' POOH. Confirm +18' correction, corrected PBTD of 12,175'. Make up 2 7/8" CIBP and stab on the well. Standby due to Operations refusal during bridge construction. RIH with plug, correct depth at flag and set @ 12076'. POOH 9/16/2018 Job inProress... CTU #9 - 1.75" Coil. ***Continue from 9/16/18*** Perform seven day BOP test. RDMO 9/17/2018 ...Complete... WELLHEAD= FMC ACTUATOR= BAKER OKE. ELEV = 89.47' BF. FLEV = 55.25' KOP= 3100' Max Angle = 89" @ 11698' Datum MD= 11417' Datum TVD= 8800'SS 13-3/8" CSG, 684, L-80, D = 12.415" Minimum ID = 2."1" @ 11363' TOP OF 2-718" LINER Ito] Y4i WmII IUM 2" TBG, 12.6#, 13 -CR VAMFACE, 52 bpf, D = 3.958" 9-5/8" CSG, 47#, L-80, D = 8.681' 312" U4R 8.81#, 13CF4STL, .0087 bpf, D = 2.992" -- 11363• BKR WHIPSTOCK (06/27/06) 11385' 2 RA PP TAGS (06/27/06) 11395' PBTo 11785' 7" LNR 26#, L-80, .0383 bpf, D = 6.276" 11850' Z SAFM NOTES: WELL ANGLE> 70° @ 11679' 6 ••• CHROME 4-12"TBG&3-12"/2-78"LHR'• 2211' —14-1/2" FES X NP, D= 3.813" GAS LFT MANDRELS ST PERFORATION SUMMARY TVD DEV REF LOG: MCTLGR ON 07/05/06 LATCH ANGLE AT TOP PERF: 66` @ 11464' 6 Note: Refer to Roduction DB for historical perf data SIZE SPF INTERVAL Opn/Sgz DATE 2" 6 11464 - 11474 O 03/02/09 2" 6 11474 - 11484 O 0321/08 7 6 11494 - 11502 O 03121/08 2" 6 11710 - 11800 0 07/06/06 2" 6 12050 - 12065 0 07/06/06 2" 6 12087 - 12113 C 07/06/06 Z SAFM NOTES: WELL ANGLE> 70° @ 11679' 6 ••• CHROME 4-12"TBG&3-12"/2-78"LHR'• 2211' —14-1/2" FES X NP, D= 3.813" GAS LFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3195 3192 12 MNG DOME RK 16 0227/15 5 5232 4817 49 MW SO RK 20 0227/15 4 6848 5883 46 MAG DOME RK 20 12/13111 3 8162 6811 54 MMG DW RK 0 09/05/03 2 9503 7613 51 MAG DM7 RK 0 12/12/11 1 10563 8293 46 MAC DAM RK 0 12/12/11 110633-7 4-1/2" HES X PP, D = 3.813" 10678' —14-1/2" HES X NP, D=3-813" 1072W 3.70" BKR DEPLOY SUV, D=3.00" 10755' 312' HES X FP, D = 2.813" 10780' 4-12' HES XN NP, MLLEDD = 3$i 10793' 4-1/7 VA -EG, D=4.0' TIW71 TOP OF LPR CF3rBJT 11196'-7'MARMJONT1 11363' 312' X2 -7/8 -XO, D=2.441' MLLOUT WNDOJV (Z -26A) 11390' - 11398' PBTD H 12186' DATE REV BY COM.BJTS DATE REV BY COMMBJTS 06109189 FERREL ORGINALCOMPLETION 09/19/18 JTMJMD SET WFD GBP(09/16/18) 09107103 DACIKK RWO 07106106 NORDICi CTD SIDETRACK (Z -26A) 03/02/15 SACIJME GLV 00(0227/15) 03/07/15 TA/ PJC RXL13D (12109111) RSH 0220/18 PGJMD CORRBCTEDMND 1810 .]:A PR DHOE BAY UNT WELL Z -26A PERMIT No: 2060790 API No: 50-029-21945-01 SEC 19, T1 IN, R12E, 721' FNL & 1844' FWL BP Exploration (Alaska) ! • F u. 2,- Z.-6A- Regg, James B (DOA) From: Cook, Guy D (DOA) Sent: Tuesday, August 09, 2016 1:03 PM To: AKOPSGC2FieIdMTL@bp.com; Akopsgc2wellpadlead@bp.com;AKOPSGC2FieIdOMTL1 @bp.com Cc: Regg, James B (DOA) '- b(101 10 Subject: PBU Z-pad Deficiency Reports Attachments: Deficiency_Report_PBUZ-04 .xlsx; Deficiency_Report_PBUZ-11.xlsx; Deficiency_Report_PBUZ-13.xlsx; Deficiency_Report_PBUZ-15.xlsx; Deficiency_Report_PBUZ-26.xlsx Christy Lawler/Dave Spall, Attached are the deficiency reports for the PBU Z-Pad wells with incorrect permit to drill numbers on their well signs. This is provided for your records and to ensure the deficiency is corrected. Please provide photo evidence of the well sign after installation when you return the completed deficiency report(date corrected). If you have any questions, please feel free to call or email. Thank you, Guy Cook Petroleum Inspector AOGCC SCANNED JAN 1 2017 907-227-2614 CONFIDENTIALITY NOTICE:This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information.The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Guy Cook at 907-659-2714 or guy.cook@alaska.gov. 1 . • State of Alaska At Oil and Gas Conservation Commission l Deficiency Report Location: PBU Z-26A Date: 8/8/2016 PTD: 2060790 Operator: BP Exploration Alaska Type Inspection: SVS Operator Rep: Joseph Perkowitz Inspector: Guy Cook - Position: GC2 Wellpad Lead Operator Op. Phone: 907-659-4128 Correct by(date): 9/8/2016 Op. Email: Akopsgc2wellpadlead@bp.com Follow Up Req'd: Yes Detailed Description of Deficiencies Date Corrected Wellhouse sign needs to be updated with correct permit to drill number. Operator Rep Signatures: AOGCC Inspector *After signing,a copy of this form is to be left with the operator. Follow-up Instructions Return a copy of this Deficiency Report to AOGCC(Attention: Inspection Supervisor)within 7 days of receipt. Include the"Date Corrected"and attach supporting documentation for each corrective action implemented to address the deficiencies. If a follow-up AOGCC,include the date and name of Inspector. Extensions for corrective actions inspection was performed bytakinglonger p than the"correct by"date must requested and accompanied by justification(Attention: Inspection Supervisor). Failure to provide the required documentation of corrective actions constitutes a violation of 20 AAC 25.300 and is subject to enforcement action under 20 AAC 25.535 Revised 12/2015 - STATE OF ALASKA RECEIVED AL __KA OIL AND GAS CONSERVATION COMM JN APR 0 1 2015 REPORT OF SUNDRY WELL OPERATIONS ,�(�•GM,9P 1.Operations Abandon U Repair Well U Plug Perforations U Perforate H Other LJ , Q c id Performed: Alter Casing ❑ Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time Extensions Change Approved Program ❑ Operat Shutdown❑ Stimulate-Other Q Re-enter Suspended Well❑ 2.Operator 4.Well Class Before Work 5 Permit to Dnll Number Name BP Exploration(Alaska),Inc Development El Exploratory ❑ 206-079-0 3 Address P 0 Box 196612 Stratigraphic❑ Service ❑ 6.API Number Anchorage,AK 99519-6612 50-029-21945-01-00 7 Property Designation(Lease Number): 8.Well Name and Number ADL0028262 PBU Z-26A 9 Logs(List logs and submit electronic and pnnted data per 20AAC25.071). 10 Field/Pool(s). PRUDHOE BAY,PRUDHOE OIL 11 Present Well Condition Summary Total Depth measured 12220 feet Plugs measured None feet true vertical 9102 86 feet Junk measured None feet Effective Depth measured 12186 feet Packer measured None feet true vertical 9077 69 feet true vertical None feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 76 20"Conductor 34-110 34-110 0 0 Surface 2590 13-3/8"68#L-80 32-2622 32-2621 88 5020 2260 Intermediate None None None None None None Production 10957 9-5/8"47#L-80 29-10986 29-8598 88 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 11464-11474 feet 11474-11484 feet 11494-11502 feet 11710-11800 feet 12050-12065 feet 12087-12113 feet True Vertical depth 8910 95-8914 85 feet 8914 85-8918 47 feet 8921 8-8924 25 feet 8949 6-8960.04 feet 8999.27-9005 64 feet 9015 88-9029.69 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12 6#13Cr80 20 7-10792.8 21 -8457 56 Packers and SSSV(type,measured and true vertical depth) 4-1/2"Baker S-3 Perm Packer 10653 37 8357.19 Packer None None �y None SSSV 12 Stimulation or cement squeeze summary SCOW , ' t Intervals treated(measured) 11464'-12113' Treatment descnptions including volumes used and final pressure: 413BBLs NH4CI+2%F103,112 BBLs 9.1 MUD ACID, 16BBLs WAX BEADS,56 12%HCI 13 Representative DN �duc6opordnjectigrp_FJata 7` : Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation 0 0 0 0 0 Subsequent to operation 397 1754 2194 0 252 14 Attachments 15 Well Class after work Copies of Logs and Surveys Run Exploratory Development Q Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16 Well Status after work Oil Q Gas LI WDSPIU GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUG 17 I hereby certify that the foregoing is true and correct to the best of my knowledge Sundry Number or N/A if C 0 Exempt � N/A Contact Nita Summerhays Email Nita.Summerhays(C�bp.com Printed Name Nita ummerhay Title Petrotechnical Data Engineer - Ji Sign-,ui ��', �� / Phone 564-4035 Date 4/1/2015 1(T1' 4/10//, RBDMS 4- APR - 7 2015 Form 10-404 Revised 10/2012 Submit Onginal Only Daily Report of Well Operations ADL0028262 r � ASRC Test Unit#2***Begin WSR***CTU Mud Acid/6hr PB***Begin 2/24/2015 RU***Continue on WSR 2/25/15*** ASRC Test Unit#2***Continued from WSR 2/24/15***CTU Mud Acid/6hr 2/25/2015 PB***Continue RU, PT***3 Hour Idle Time*** End WSR 2/25/15*** CTU#6- 1.75" Coil Job Objective: Mill Scale, Mud Acid Standby as ASRC and Well Support complete rig up. Mobilize to Z-pad, MIRU, pump 125" drift ball. Begin weekly BOP test 2/25/2015 ...Continued on WSR 2-26-15... ASRC Test Unit#2***WSR 2/26/15***CTU Mud Acid/6hr PB***Continue SB, flow 2/26/2015 well***Continue on WSR 2/27/15*** ****WELL S/I ON ARRIVAL****(glvs for coil) RIG UP SWCP 4515 2/26/2015 ***WSR CONT'D ON 02/27/15*** CTU#6- 1.75" CT. Job Objective: Mill Scale,Acid Stimulation Complete BOP test. Make up 3.79"Turbo scale mill on 2-7/8" motor. Bring well online with 0.5-1.0 MMSCF/D while RIH and get stable returns. Tag scale at 9516' and Mill Down to 10075'with frequent gel sweeps. IA begins rapidly increasing and and well stops taking gas lift. Begin loosing returns and attempt to PUH and unload well enough to re-establish gas lift. Become detained at multible spots due to scale bridging off around coil. Able to pull free and contiue PUH pumping at high rate as every reduction in rate yields an immediate overpull. Determine that the GLVs were becoming thermally locked as the well warmed up. Continue POOH and FP coil and ASRC. At surface well has inj. of<0.1 bpm, rbih and lay in FP from 2500'. Rig Down CTU & park on edge of pad &wait for Slickline to changeout gaslift valves. 2/26/2015 ***In Progress*** ***WSR CONT'D FROM 02/26/15*** (acid) ATTEMPT TO SET 4 1/2" SSCS UNABLE TO PASS 6690' SLM DRIFTED WITH 3.80" GAUGE RING, 4-1/2" BLB, 3.70"GAUGE RING TO 6637' SLM(unable to pass, see log) SET 4 1/2' SSCS @ 5350' SLM PULLED RK-DGLV FROM STA#5 © 5,224' SLM/5,232' MD PULLED RK-LGLV FROM STA#6 @ 3,188' SLM/3,196' MD SET RK-LGLV IN STA#6 @ 3,188' SLM/3,196' MD SET RK-OGLV IN STA#5 @ 5,224' SLM/5,232' MD PULLED 4 1/2' SSCS FROM 5350' SLM 2/27/2015 ***WELL LEFT S/I ON DEPARTURE, PAD-OP NOTIFIED OF STATUS**** CTU#6 1.75" CT (CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stimulation Standby on edge of pad while SL changes gaslift valves. SL finished. MIRU CTU. 2/27/2015 ****In Progress*** ASRC Test Unit#2***Continued from WSR 2/26/15***CTU Mud Acid/6hr 2/27/2015 PB***Continue Stby***Continue on WSR 2/28/15*** ASRC TEST UNIT#2 Job Scope: Mill Scale/Acid Stimulation CTU ***Continue 2/28/2015 from WSR 2/27/15 • Daily Report of Well Operations ADL0028262 CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stimulation Rih w/3.79" Turbo Scale Mill on 2-7/8" motor. Attempt to POP well through ASRC to Z-23 outlet well. Z-23 flowline appears to be frozen. Troublshoot with Pad-Op. Thawed flowline, continue with operation. POP well through Z-23 outlet and apply 1.5 MMscf/d gas lift. Tag scale at 10065' and mill down to Deployment sleeve at 10728'. Pump powervis sweep and chase OOH at 80%. FP well and all surface lines. Pop off well and standby for phase conditions. 2/28/2015 ***In Progress*** ASRC Test Unit#2***Begin WSR***CTU Mud Acid/6hr PB***POP,Flow 3/2/2015 well****Continued on 3/3/15 WSR CTU#6- 1.75" Coil. Job Objective: Mill Scale/Acid Stim Make up 2.80"Turbo Scale Mill with 2-1/8" motor. RIH. Unable to POP well due to frozen ASRC inlet. Thaw inlet, POP well with 2.0 MMscf/d AL. Light tag at 10670' CTMD and begin milling ahead. Work down to 10705', unable to see motor work or able to stall motor. Reduce gaslift rate from 1.8 to 1 mmscf/d and confirm not hydraulicing out. Pooh to inspect bha. 3/2/2015 ***In Progress*** ASRC Test Unit#2***Continued from WSR 3/2/15***CTU Mud Acid/6hr 3/3/2015 PB***Flow well, SI well****End WSR CTU#6 1.75"CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim Pooh with milling bha. Trim pipe. Replace motor. Rih w/2.80"turbo scale mill on 2 3/8" motor. Mill scale down to 11171' CTMD. Tag top of suspected GLV fish unable to continue milling. POOH, FP all surface line, Z-23 flowline. Mill shows obvious signs that we were setting down on lost GLV. Stack down coil unit in preparation of immenent weather. 3/3/2015 ***In Progress*** CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim Return to location and return to normal operations. Make up Fishing BHA with 2.66" burnshoe on venturi and 2-3/8" motor. POP well through ASRC and RIH. Dress top of deployment sleeve from 10703-10717 to enter 3-1/2"tubing. Dry tag obstruction (glv) at 11168'. Attempt to burn over with burn shoe. Was stacking weight and not seeing motor work. Hoover down over several times&down stack on top without pumping trying to stick valve up thru flutter cages. Pooh. Did not recover GLV. Venturi packed full of scale. See impression of glv latch 10" upside burnshoe just below flutter cages. Redress venturi. :3/4/2015 ***In Progress*** ASRC Test Unit#2***Begin WSR***CTU Mud Acid/6hr PB***POP and flow well, 3/4/2015 SI, RePOP****Continue on 3/5/15 CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim Re-run venturi/burn shoe on 2-3/8" motor. Begin milling to make it below 11098. Venturi plugged with ground scale by 11126' (45' above GLV) , unable to make forward progress. Pump gel sweep off bottom and chase OOH. At surface venturi packed off with scale and no fish recovered. Shut in and FP ASRC after well U- tubing gas lift with no liquid rate. Perform weekly BOP Test. Rih w/ Baker bowen overshot short catch. Tag deployment slv at 10717', was unable to work tools thru liner. Pooh. MU same fishing BHA w/a knuckle joint and cent. RIH. 3/5/2015 ***In Progress*** ASRC Test Unit 2***Continue from WSR 3/4/15***CTU Mud Acid/6hr PB***Flow 3/5/2015 well, SI, RePOP****Continue on 3/6/15 Daily Report of Well Operations ADL0028262 CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim MU same Bowen overshot short catch fishing BHA w/a knuckle joint and 2.68" cent. Pass thru TOL no problem and tag fish at 11,165', 5k over pull. Come online w/ pump and circulate a 10 bbl gel pill around. Tag down on fish multiple times with slight overpulls, but nothing conclusive suggesting it's latched. Pooh. No valve recovered. Run 2.70" Bowen overshot w/ 1-5/8" grapple. Tag TOL at 10717'. Unable to work thru. Pooh. Identify that the reel chain and reel drive motor need replaced. Standing by for parts. 3/6/2015 ***In Progress*** ASRC Test Unit 2***Continue from WSR 3/5/15***CTU Mud Acid/6hr PB***Flow 3/6/2015 well***Continue on 3/7/15 ASRC Test Unit 2***Continue from WSR 3/6/15***CTU Mud Acid/6hr PB***Flow 3/7/2015 well***Continue on 3/8/15 CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim Replaced reel chain and reel drive motor. Rih w/2.38" barrell finger catch on 2- 3/8" motor. Tag TOL at 10717'. Roll pump & pass thru easily. Tag fish at 11,167' multiple times, no real over pulls. Pooh. No fish recovered. Change packoffs/ chain inspection. MU BKR motor w/a 2.63" burn shoe and RIH. 3/7/2015 ***In Progress*** ASRC Test Unit 2***Continue from WSR 3/7/15***CTU Mud Acid/6hr PB***Flow 3/8/2015 well***Continue on 3/9/15 CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim RIH w/BKR motor and 2.63" burn shoe. Tag down on fill at 11150'. Come online and burn over fish/GLV down to 11157'. Pump a 25 bbl gel pill, lay in gel from 11157' up to 10730'. Launch 3/8" ball and open circ sub, POOH chasing returns at 80%. Freeze Protect ASRC &Z-23 flowline. Rih w/2.38" Barrel Finger Catch w/ Tempress & Indexing Tool. Take returns while rih. No communication with formation. Tag TOL at 10708'. Orient tools 2 times&then able to pass thru. Tag fish at 11,166'. Rih &stack down on fish multiple times. Stack down & pump down coil to work tempress. Pooh & FP well down bs. Recovered GLV(see log for details). MU BKR motor with a 2.80"turbo scale mill and RIH. Dry tag scale at 11182'. Begin milling scale at 11181'. 3/8/2015 ***In Progress*** CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim Begin milling scale at 11,181'. Mill scale from 11181' down to X-O at 11355' pumping 15bbl gel sweeps and chasing them up hole to liner top (see log for details). POOH chasing returns at 80%. Trim 100' of pipe. MU & RIH w/2.35" Turbo scale mill on 1-11/16" motor. Dry tag at 11355'. Begin milling at 11355'. Hard scale, ROP-.1-.5fpm w/200psi motor work and multiple stalls down to 11460' (near top perf). At 11460'the motor work fell off, increase ROP to 1.5- 3fpm down to 11600'. At 11600', pump gel sweep and chase up hole into tubing. ***In Progress*** (Appears all the water production is coming from the upper set of perfs. There :3/9/2015 wasn't any scale encountered below the top perf.) ASRC Test Unit 2***Continue from WSR 3/8115***CTU Mud Acid/6hr PB***Flow 3/9/2015 well***Continue on 3/10/15 Daily Report of Well Operations ADL0028262 T/I/0=700/900/350 Temp=Hot Assist CTU (Acid Job) Pump 5 bbls meth, 366 bbls crude down IA to load for CTU. Pump 5 bbls meth, 56 bbls crude down TBG to Freeze Protect. 3/10/2015 FWHP=250/400/300 CTU in control of well upon departure ASRC Test Unit 2***Continue from WSR 3/9/15***CTU Mud Acid/6hr PB***Flow 3/10/2015 well***Continue on 3/11/15 CTU#6 1.75" CT(CTV= 33.9 bbls) Job Scope: Mill Scale/Acid Stim Mill down to 11600', pump gel sweep and chase up hole into tubing. Offline w/ pump, dry drift down to PBTD @ 12157'. Circulate a 21 bbl gel pill off bottom and chase OOH. POOH. RU SLB pumpers and LRS. Shut off GL and shut well in. MU and RIH w/2.10" BDJSN. LRS displaced IA with 366 bbls of crude. Kill well down backside w/ 139 bbls of NH4CI followed by 56 bbls of crude for Freeze Protect. Rih to 12130'jetting NH4CI then puh above perfs at 11450'. Pump acid treatment as follows: INJECTIVITIES Fluid bpm WHP bbls NH4CI 1 794 15 Wax Divert 1 976 7 good indication of diversion NH4CI 1 998 10 12% HCI 1 363 57 9:1 Mud Acid 1 244 57 NH4CI 2 420 85 Wax Divert 1 437 9 good indication of diversion NH4CI 1 392 12 12% HCI 1 306 57 9:1 Mud Acid 1 272 55 Over displace acid into formation w/ NH4CI. 3/10/2015 ***In Progress*** ASRC Test Unit 2***Continue from WSR 3/10/15***CTU Mud Acid/6hr PB***Flow 3/11/2015 well***Continue on 3/12/15 CTU#6 1.75" CT(CTV= 33.9 bbls)Job Scope: Mill Scale/Acid Stim Over displace acid into formation w/NH4CI. Drop ball and POOH jetting GLMs w/ 12% HCI. RDMO. Hand well over to ASRC for flowback. 3/11/2015 ***Job Complete*** ASRC Test Unit 2***Continue from WSR 3/11/15***CTU Mud Acid/6hr PB***Flow 3/12/2015 well***Continue on 3/13/15 ASRC Test Unit 2***Continue from WSR 3/12/15***CTU Mud Acid/6hr PB***Flow 3/13/2015 well***Continue on 3/14/15 _ ASRC Test Unit 2***Continue from WSR 3/13/15***CTU Mud Acid/6hr PB***Flow 3/14/2015 well***Continue on 3/15/15 ASRC Test Unit 2***Continue from WSR 3/14/15***CTU Mud Acid/6hr 3/15/2015 PB***Flow/Test well***End WSR down FL through test unit to freeze protect. ASRC in control of Well upon LRS 3/15/2015 departure. Job complete FLUIDS PUMPED BBLS 1162 60/40 METH 857 1% SLICK KCL W/SAFELUBE Daily Report of Well Operations ADL0028262 201 POWERVIS 1 DIESEL 3724 1% SLICK KCL 422 CRUDE 413 NH4CI + 2% F103 112 9:1 MUD ACID 16 WAX BEADS 56 12% HCI 6964 TOTAL • 1MCEVOY RE.-=HEAD= SNrt1Y NOTES: WELL ANGLE>70'@ 11679' ELFMC ACTUATOR= BAKER Z-2 6 A *"CHROME 4-1/2"TBG&3-1/2"12-7/8"LNR** OKB. ELEV= 89.47' BF. ELEV= 55.25' KOP= 3100' Max Angle= 89'©11698' Datum MD= 11417' I I 2211' —4-1t2"HES X tom',D.3.813" Datum TVD= 8800'SS' 13-3/8"CSG,68#,L-80,D=12.415" J 2622' GAS LIFT Mot S ` ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3195 3192 12 MAG DOME RK 16 02/27/15 5 5232 4817 49 MAG SO RK 20 02/27/15 4 6848 5883 46 MNG DOME RK 20 12/13/11 Minimum ID =2.370" 11363' 3 8162 6811 54 MAG DAY RK 0 09/05/03 I 2 9503 7613 51 MMG DMY RK 0 12/12/11 jTOP OF 2-7/8" LINER ( 1 10563 8293 46 MMG DMY RK 0 12/12/11 10633' —14-1/2"HES X NP,D=3.813" 1 S 10653' —19-5/8"X 4-1/2"BKR S-3 PKR,D=3.875" I I 10678' —I 4-1/2"HES X NP,D=3.813' 10728' —3.70"BKR DEPLOY SLV,13=3.00" TOP OF 7"LNR — 10739' 10755' —{3-1/2'IES X NP,D=2.813" 4-1/2"TBG,12.6#,13-CR VAM-ACE, H 10791' I I 10780' —{4-112"i ES XN NIP,MLLED D=3.80" .0152 bpf,ID=3.958" / \ 10793' H4-1/2"WLEG,D=4.0" 9-5/8"CSG,47#,L-80,ID=8.681" — 10986' ' , %FA r. 11185' I—TOP OFLNR c B".4T PV•$ .�s 11196' —7"MA JOEhIT 3-1/2"LNR,8.81#,13CR-STL,.0087 bpf,D=2.992" —4 11363' 1'4'1 •t ...4 '.'. 11363' H3-1/2"X 2-718'X0,D=2.441' BKR WHPSTOCK(06/27/06) 11385' 1- 444.4 et, 2 RA RP TAGS(06/27/06) —j 11395' ,,� MLWINDOW NDOW(Z-26A) 11390'-11398' „....,..„„„„ .. PBTD — 11785' 14A•• 14.1 7"LNR,26#,L-80,.0383 bpf,D=6.276" — 11850' PERFORATION SUMMARY REF LOG:MCNUGR ON 07/05/06 ANGLE AT TOP PAF: 66'@ 11464' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2" 6 11464- 11474 0 03/02/09 PBTD 121$6' i�v 2" 6 11474- 11484 O 03/21/08 2" 6 11494- 11502 0 03/21/08 2" 6 11710-11800 0 07/06/06 2-7/8"LNR,6.17#,13CR-85 STL, .0058 bpf,D=2.441" — 12220' 2" 6 12050-12065 0 07/06/0 2" 6 12087-12113 0 07/06/06 DATE ! REV BY COMvENTS DATE REV BY COMMENTS FRUDHOE BAY (1'IT 06/09/89 FERREL ORIGINAL COMPLETION 12/16/10 SWC/PJ GLV GO(12/14/10) WELL. Z-26A 09/07/03 DAC/KK RWO 12/14/11 WAS/PJ GLV GO(12/13/10)/FISH DH PERMIT No: 2060790 07/06/061NORDIC1 CTD SIDETRACK(Z-26A) 12115/11 WS/PJ GLV GO(12/13/11) AR No: 50-029-21945-01 03/05/09 RLMSV ADPERF(03/02/09) 03/02/15 SWC1J GLV GO(02/27/15) SEC 19,T11 N,R12E,721'FM_&1844'FW_ 06/14/10 TR/SV GLV GO(06/12/10) 03/07/15 TA/PJC IPLLLED(12/09/11)FISH 11/16/10 LIS/PJC WELL ANGLE CORRECTION - 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. ©~ - ~ ~ ~ Well History File Identifier Organizing (aor,e) R/ESCAN 1 ~j Color Items: ^ Greyscale Items: ^ Poor Quality Originals: ^ Other: NOTES: ~..~,ded iiiuiiiiiuiiiui DI ITAL DATA Diskettes, No. I ^ Other, No/Type: BY: (` Maria Date: Project Proofing BY: Maria Date: v Scanning Preparation ~_ x 30 = BY: Maria Date:~~' Production Scanning R~~a~~e~ea iiuumuiiuuu OVERSIZED (Scannable) ^ Maps: ^ Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) ^ Logs of various kinds: ^ Other:: v~ P ~I~u~l~~~lls~~~u ~1 P + =TOTAL PAGES ount does not include cover sheet lsl Stage 1 Page Count from Scanned File: (count does include cover sheet) Page Count Matches Number in Scanning Preparation: YES NO BY: Maria Date: ~ ~/ ©8' /s/ 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 II'l11 I II II I I III ReScanned BY: Maria Date: /s/ Comments about this file: o~,,.~~e«.a iuimiimimm 10/6/2005 Well History File Cover Page.doc OPERABLE: Z -26A (PTD #2060790) Tubingiiegrity Restored • Page 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWellIntegrityCoordinator @bp.com] Sent: Thursday, November 17, 2011 1:21 PM To: Regg, James B (DOA); Maunder, Thomas E (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; Kirchner, Carolyn J Cc: AK, D &C Well Integrity Coordinator; Clingingsmith, Mike J; LeBaron, Michael J Subject: OPERABLE: Z -26A (PTD #2060790) Tubing Integrity Restored Attachments: Z- 26A.pdf; Z -26A TIO 11- 2- 11.doc All, Producer Z -26A (PTD #2060790) passed a TIFL on 11/14/2011 after bringing the well online proving tubing integrity has been restored. The well has been reclassified as Operable. Please call if you have any questions. Thank you, Gerald Murphy (alt. Mehreen Vazir) Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 ! 3 (907) 659 -5100 Ext. 1154 From: AK, D &C Well Integrity Coordinator Sent: Wednesday, November 02, 2011 9:14 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field 0 &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad W; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services O erations Team Lead; AK, RES GPB West Wells Opt Engr; Kirchner, Carolyn J; 'Regg, James B (DOA)'; 'Maunder, Thomas E (DOA)'; 'S' wartz, Guy L (DOA)' Cc: King, Whitney; Arend, Jon (NORTHERN SOLUTIONS LLC); Olson, Andrew Subject: UNDER EVALUATION: Z -26A (PTD #2060790) Sustained Casing Pressure .n IA Above MOASP All, Producer Z -26A (PTD #2060790) was found to have sus - ined casing pressure on the IA above MOASP. The wellhead pressures were tubing /IA/OA = SSV /204' 420 on 10/30/2011. The well is reclassified as Under Evaluation and may be produced while diagn•-tics are conducted. Plan forward: 1. Operations: Put well on production 2. Downhole Diagnostics: TIFL 3. Slickline: Gas lift valve change out if L fails A wellbore schematic and TIO plot =re included for reference: «Z- 26A.pdf» «Z -26A TIO 2 - 11.doc» Thank you, Mehreen Vazir . 11/17/2011 PBU Z-26A PTD #2060790 11/17/2011 TIO Pressures Plot Well: Z-26 4,030 3,000 - i • —� Thy —f- IA 2,000 OA 00A 000A On 1,000 08/08/11 00/13/11 08/20/11 08/27/11 09/03/11 09/10/11 09 /17/11 - 09/24/11 10/01/11 10/08/11 10/15/11 10/22/11 10/29/11 • TREE = ■ MCEVOY SAFETY NOTES: ANGLE > 70 o @ 11679' WELLHEAD = FMC ACTUATOR = BAKER -2 ** *CHROME 4 - 112" G& 3 - 112" i 2 - 7/8" LNR ** KB. ELEV = 89.47' BF. ELEV = 55.25' KOP = 3100' Max Angle = 89 @ 1169_8' Datum MD = 11417' I I 2211' H4 -1/2" HES X NIP, ID = 3.813" Datum TVD = _ 8800' SS 113 -3/8" CSG, 68 #, L -80, ID = 12.415" H 2622' l- GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3196 3192 12 MMG DOME RK 16 12/14/10 5 5232 4817 49 MMG DMY RK 0 02/17/07 r 4 6848 5883 46 MMG DOME RK 16 12/14/10 3 8162 6811 54 MMG DMY RK 0 09/05/03 Minimum ID = 2.370" @ 11363' 2 9503 7613 51 MMG DOME RK 16 12/14/10 TOP OF 2 -7/8" LINER 1 10563 8293 46 MMG SO RK 22 12/14/10 1 10633' I-I4 -1/2" HES X NIP, ID = 3.813" I 10653' 9 -5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.875" ■ 10678' H4 -1/2" HES X NIP, ID = 3.813" I I 10728' I—I3.70" BKR DEPLOY SLV, ID = 3.00" I (TOP OF 7 " LNR I-1 10739' { 10755' 1-13-1/2" HES X NIP, ID = 2,813" I I 10780' -- I4 -1/2" HES XN NIP, MILLED ID = 3.80" I 4 -1/2" TBG, 12.6 #, 13 -CR VAM -ACE, --1 10791' 0152 bpf, ID = 3.958" / 10793' I--I4 -1 /2" WLEG, ID = 4.0" I 19 -5/8" CSG, 47 #, L -80, ID = 8.681" H 10986' I • l .. / , 11185' I I TOP OF LNR CEMENT I • k I 11196' 1-1 7" MARKER JOINT I 13-1/2" LNR, 8.81 #, 13CR -STL, .0087 bpf, ID = 2.992" I--I 11363' •• A .� `4 4 11363' H3-1/2" X 2 -7/8" XO, ID = 2.441" I I BKR WHIPSTOCK (06/27/06) I 11385' - 4 -v 12 RA PIP TAGS (06/27/06) H 11395' r - "111W4 %1 MILLOUT WINDOW (Z -26A) 11390' - 11398' ` vA • A A AvAvA. I PBTD H 11785' 17" LNR, 26 #, L-80,.0383 bpf, ID = 6.276" I—I 11850' L i � > C A A ■ ■ PERFORATION SUMMARY REF LOG: MCNUGR ON 07/05/06 ANGLE AT TOP PERF: 66" @ 11464' S. Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE PBTD H 12186' 1 • 2" 6 11464 - 11474 0 03/02/09 2" 6 11474 - 11484 0 03/21/08 2" 6 11494 - 11502 0 03/21/08 I2 -7/8" LNR, 6.17 #, 13CR -85 STL, .0058 bpf, ID = 2.441" I—1 12220' I 2" 6 11710 - 11800 0 07/06/06 2" 6 12050 - 12065 0 07/06/06 2" 6 12087 - 12113 0 07/06/06 DATE REV BY COMMENTS I DATE REV BY COMMENTS PRUDHOE BAY UNIT 06/09/89 _FERREL ORIGINAL COMPLETION 12/16/10 SWC /PJC GLV C/O (12/14/10) WELL: Z -26A 09/07/03 DAC /KK RWO PERMIT No: 2060790 07/06/06 NORDICI CTD SIDETRACK (Z -26A) API No: 50 -029- 21945 -01 03/05/09 RLM/SV ADPERF (03/02/09) j - SEC 19, T11 N, R12E, 721' FNL & 1844' FWL - 06/14/10 TR/SV GLV C/O (06/12/10) 11/16/10 LIS /PJC WELL ANGLE CORRECTION BP Exploration (Alaska) UNDER EVALUATION: Z -26A (PTD #2060) Sustained Casing Pressure on IA Abe MO... Page 1 of 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWeIIIntegrityCoordinator @bp.com] if -7 ( Sent: Wednesday, November 02, 2011 9:14 PM l To: AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; Kirchner, Carolyn J; Regg, James B (DOA); Maunder, Thomas E (DOA); Schwartz, Guy L (DOA) Cc: King, Whitney; Arend, Jon (NORTHERN SOLUTIONS LLC); Olson, Andrew Subject: UNDER EVALUATION: Z -26A (PTD #2060790) Sustained Casing Pressure on IA Above MOASP Attachments: Z- 26A.pdf; Z -26A TIO 11- 2- 11.doc All, Producer Z -26A (PTD #2060790) was found to have sustained casing pressure on the IA above MOASP. The wellhead pressures were tubing /IA/OA = SSV/2040/420 on 10/30/2011. The well is reclassified as Under Evaluation and may be produced while diagnostics are conducted. Plan forward: 1. Operations: Put well on production 2. Downhole Diagnostics: TIFL 3. Slickline: Gas lift valve change out if TIFL fails sc A wellbore schematic and TIO plot are included for reference: at e G 2,70 fs; . «Z- 26A.pdf» «Z -26A TIO 11- 2- 11.doc» SCUP = 2_61, 7 4 20 © �1��P Thank you, etufi o\- Mehreen Vazir (Alternate: Gerald tvlurphy) axt ra&a 3 .) t" Well Integrity Coordinator BP Alaska Drilling & Wells Well Integrity Office: 907.659.5102 Email: AKDCWeIIIntegrityCoordinator @BP.com 11/7/2011 PBU Z -26A PTD #2060790 11/2/2011 TIO Pressures Plot Welt Z-26 4.000 - 3.000 - • --410— Tby --f— IA 2.000 —A— OA 00A —4-- 000A On 1 ..000 - 08/08/11 08/13111 08/20/11 08/27/11 09/03/11 09/10/11 09/17/11 09/24/11 10/01/11 10/08/11 10/15/11 10/22/11 10/29/11 • TREE = MCEVOY SAFETY NOTES: ANGLE > 70° @ 11679' WELLHEAD = FMC ACTUATOR = BA KER * * *CHROME4 - 1 /2" G &3 1/2 "l2 718 "LNR ** KB. ELEV = 89.47' BF. ELEV = 55.25' KOP = 3100' Max Angle = 89 @ 11698' Datum MD = 11417' 1 2211' H4 -1/2" HES X NIP, ID = 3.813" 1 Datum TV D = 8800' _ SS 1 13 -3/8" CSG, 68 #, L -80, ID = 12.415" H 2622' 1 GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3196 3192 12 MMG DOME RK 16 12/14/10 5 5232 4817 49 MMG DMY RK 0 02/17/07 4 6848 5883 46 MMG DOME RK 16 12/14/10 3 8162 6811 54 MMG DMY RK 0 09/05/03 Minimum ID = 2.370" t@ 11363' 2 9503 7613 51 MMG DOME RK 16 12/14/10 TOP OF 2 -7/8" LINER 1 10563 8293 46 MMG SO RK 22 12/14/10 I I 10633' 1- 14 -1/2" HES X NIP, ID = 3.813" ` Off. 10653' 1--19 -518" X 4 -1/2" BKR S -3 PKR, ID = 3.875" 1 ® ( 10678' H 4 -112" HES X NIP, ID = 3.813" I 10728' H3.70" BKR DEPLOY SLV, ID = 3.00" 1 TOP OF T' LNR 1 10739' r 10755' 1- 1 3 -1/2" HES X NIP, ID = 2.813" 1 i I 10780' H 4 -1/2" HES XN NIP, MILLED ID = 3.80" I 4 -1/2" TBG, 12.6 #, 13 -CR VAM -ACE, 10791' .0152 bpf, ID = 3.958" 10793' —14-1/2" WLEG, ID = 4.0" 1 9 -5/8" CSG, 47 #, L-80, ID = 8.681" H 10986' P= 6 `PJ 7Up ,1�1 1.1• 11 185' H TOP OF LNR CEMENT 1 4 1 1 ti , 4 , 11196' H 7" MARKER JOINT 1 3 -1/2" LNR, 8.81 #, 13CR -STL, .0087 bpf, ID = 2.992" H 11363' I+•1 of 111 111 11363' H3 -1/2" X 2 -7/8" XO, ID = 2.441" 1 1N' 11 1 BKR WHIPSTOCK (06 /27/06) 1 11385' 4, 1t 12 R A PIP TAGS (06/27/06) 1—{ 11395' `, ' MILLOUT WINDOW (Z -26A) 11390' - 11398' -,- .' s. M Vi I PBTD H 11785' In 7" LNR, 26 #, L -80, .0383 bpf, ID = 6.276" 1—I 11850' �7T�� .1v /.1.1.1.1.1./ ■ ■ PERFORATION SUMMARY REF LOG: MCNUGR ON 07/05/06 ANGLE AT TOP PERF: 66° @ 11464' S. Note: Refer to Production DB for historical pert data -� SIZE SPF INTERVAL Opn /Sqz DATE 1 PBTD H 12186' 1 w' 2" 6 11464 - 11474 0 03/02/09 2" 6 11474 - 11484 0 03/21/08 2" 6 11494 - 11502 0 03/21/08 12 -7/8" LNR, 6.17 #, 13CR -85 STL, .0058 bpf, ID = 2.441" I --I 12220' I 2" 6 11710 - 11800 0 07/06/06 2" 6 12050 - 12065 0 07/06/06 2" 6 12087 - 12113 0 07/06/06 DATE REV BY COMMENTS i DATE REV BY COMMENTS PRUDHOE BAY UNIT 06/09/89 FERRET ORIGINAL COMPLETION ' 12/16/10 SWC/PJC GLV C/O (12/14/10) WELL: Z -26A 09/07/03 DAC /KK RWO — PERMIT Na: 2060790 07/06/06 NORDIC! CTD SIDETRACK (Z -26A) - API No: 50 -029- 21945 -01 03/05/09 RLM/SV ADPERF (03/02/09) SEC 19, T11 N, R12E, 721' FNL & 1844' FWL 06/14/10 TR/SV GLV C/O (06/12/10) , 11/16/10 LIS /PJC WELL ANGLE CORRECTION . _ BP Exploration (Alaska) 11/30/10 Schlumberger NO. 5652 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD Z -016 8088 -00070 MEM PROD PROFILEE it - 6 n 'If 10/31/10 1 ',?()9 1 - 04-25 BJOH -00005 INJECTION PROFILE (2 ") ()To__ I O (54 11/08/10 1 l . - 1 04 -25 BJOH -00005 INJECTION PROFILE (5 ") (1 ( - -($.L1 11 /08/10 1 _e • -. - 1 V -07 BAUJ -00052 MEM PROD PROFILE g . � l • 11/12/10 1 r : ] R w ,t" ( 1 06 -24A BCRD -00068 PRODUCTION PROFILE �1 11/11/10 1 is V, 1 F -19A AWJI -00121 MEM PROD PROFILE a�'('(� -1 11/09/10 1 't a 1 X -25 BD88 -00068 MEMORY GLS T // - O3 10/30/10 i 1 0." , 1 P -08A BCUE -00090 MEMORY GLS -n � 10/22/10 1 ah y 1 04-30 BD88 -00083 MEM PROD PROFILE 6 95 -• - rc+r,� y 10/26/10 1 1 _ _ 01 -06A BCRD -00063 PRODUCTION PROFILE .� (� 10/23/10 1 1 III D -33 BD88-00061 MEM PROD PROFILE ( ✓( (,. 10/20/10 1 (I. 1 Z -26A 8088.00067 MEM PROD PROFILE Q {p � 10/28/10 1 1 / Z -13A BDBB -00062 MEM PROD PROFILE Q( /- ' 10/22/10 1 a / / / / 01 -02 BCRD -00066 'NJ PROFILEIWFL / -.- {{ q 10/25/10 1 A 1 1 , V -219 AZ2F -00069 MEM INJECTION PROFILE U ( CE a 10/31/10 � j " / 1 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Alaska Data 8 Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambell Street, Suite 400 900 E. Benson Blvd. r Anchorage, AK 99503 -2838 * N _ M 4 101 i • CA 3 x I: OrnOm ai ' -- ' ' '-'ffi i ! ~~ .~, ~~ _ . r _ _ ~.., JT ~ h. fyy 1 -~~• ~ E r I~ ~~ ,~ . ~~.~: MICROFILMED .6/30/2010 DO NOT PLACE ~, ANY NEW MATERIAL UNDER THIS PAGE C:\temp\Temporary Internet Files\OLK9\Microfilm Marker.doc OPERABLE: Z-26A (PTD #2060790~ubing integrity restored • Page 1 ~ Regg, James B (DOA) From: NSU, ADW Well Integrity Engineer [NSUADWWeIIlntegrityEngineer@BP.com] ~~,~,~ ~ LEI i~; Sent: Monday, April 05, 2010 1:08 PM ~ 1 t To: NSU, ADW Well Integrity Engineer; Regg, James B (DOA); GPB, Area Mgr West (GC2/WRD); GPB, GC2 Wellpad Lead; GPB, GC2 OTL; GPB, Well Pad Z; Rossberg, R Steven; Engel, Harry R; NSU, ADW Well Operations Supervisor; GPB, Wells Opt Eng; GPB, Optimization Engr; Maunder, Thomas E (DOA); Schwartz, Guy L (DOA) Cc: Janowski, Carrie; Robertson, Daniel B (Alaska) Subject: OPERABLE: Z-26A (PTD #2060790) Tubing integrity restored All, Producer Z-26A (PTD #2060790) passed a TIFL on 04/04/10 after slickline changed out theOGLV. The passing test verifies that tubing integrity has been restored. The well has been reclassified as pe~ra eT-and may be placed on production when convenient for operations. Thank you, Torin Roschinger (alt. Anna Dube) Well Integrity Coordinator Office (907) 659-5102 Harmony Radio x2376 Cell (406) 570-9630 Pager (907) 659-5100 Ext. 1154 From: NSU, ADW Well Integrity Engineer Sent: Monday, March 29, 2010 5:01 PM To: 'Regg, James B (DOA)'; NSU, ADW Well Integrity Engineer; GPB, Area Mgr West (GC2/WRD); GPB, GC2 Wellpad Lead; GP C2 OTL; GPB, Well Pad Z; Rossberg, R Steven; Engel, Harry R; NSU, ADW Well Operations Supervisor; GPB, Wells Opt Eng; GPB, Optimization Engr; 'M nder, Thomas E (DOA)'; 'Schwartz, Guy L (DOA)' Cc: Quy, Tiffany; Robertson, Daniel B (Alaska) Subject: UNDER EVALUATION: Z-26A (PTD #2060790) Sustained Casing Pressure on IA AI I, Producer Z-26A (PTD #2060790) has been found to have sust ~ ed casing pressure on the IA. On 03/26/10, the tubing/IA/OA pressures were 500/2350/300 psi. A subsequ t TIFL failed on 03/28/10 confirming TxIA communication. The well has been reclassified as Under Evaluation and ced on a 28-day clock. The plan forward for the well is as follows: 1. DHD: TIFL -FAILED 2. slickline: Change out OGLV 3. DHD: Re-TIFL / A TIO plot and wellbore sche « File: Z-26A.pdf» « F, Thank you, been attached for reference. Z-26A TIO Plot 03-29-10.doc » 4/7/2010 UNDER EVALUATION: Z-26A (PTD #2060790) Sustained Casing Pressure on IA Page 1 of 1 Regg, James B (DOA) From: NSU, ADW Well Integrity Engineer [NSUADWWeIIlntegrityEngineer@BP.com] ~~~~ ~31~~0 Sent: Monday, March 29, 2010 5:01 PM To: Regg, James B (DOA); NSU, ADW Well Integrity Engineer; GPB, Area Mgr West (GC2/WRD); GPB, GC2 Wellpad Lead; GPB, GC2 OTL; GPB, Well Pad Z; Rossberg, R Steven; Engel, Harry R; NSU, ADW Well Operations Supervisor; GPB, Wells Opt Eng; GPB, Optimization Engr; Maunder, Thomas E (DOA); Schwartz, Guy L (DOA) Cc: Quy, Tiffany; Robertson, Daniel B (Alaska) Subject: UNDER EVALUATION: Z-26A (PTD #2060790) Sustained Casing Pressure on IA Attachments: Z-26A.pdf; Z-26A TIO Plot 03-29-10.doc All, Producer Z-26A (PTD #2060790) has been found to have sustained casing pressure on the IA. On 03/26/10, the tubing/IA/OA pressures were 500/2350/300 psi. A subsequent TIFL failed on 03/28/10 con firming TxIA communication. The well has Been reclassified as Under Evaluation and placed on a~8'=day clock. The plan forwbrd for the well is as follows: 1. DHD: TIFL -FAILED ~t~.,~ ~t~rr ~ ~: 2. Slickline: Change out OGLV ~ ~ ~~~ts 3. DHD: Re-TIFL A TIO plot and wellbore schematic have been attached for reference. «Z-26A.pdf>,> «Z-26A TIO Plot 03-29-10.doc» Thank you, Toxin Roschinger (alt. Anna Dube) Well Integrity Coordinator Office (907) 6159-5102 Harmony Radio x2376 Cell (406) 57~-9630 Pager (907) 659-5100 Ext. 1154 3/31/2010 PBU Z-26A PTD 2060790 3/29/2010 TIO Pressures Well: Z-26 a,oao 3,000 2,000 7 ,aoa -~F- Tbg -~- IA ~-- OA OOA --•- OOOA On 07 ro2~~ 0 07 ~7 s~7 o a7 {ao~7 0 oz~~ ~r7 0 02~2~{7 0 oa~7 3~7 0 oa~zzr7 0 TREE = MCEV OY WELLHEAD = FMC ACTUATOR= BAKER KB. ELEV = 89.47' BF. ELEV = 55.25' KOP = 3100' Max Angle = 89 @ 1.1698' Datum MD = 11,417' Datum TV D = 8800' SS 13-3/8" CSG, 68#, L-80, ID = 12.415" ~--) 2822' Minimum ID = 2.370" @ 11363' TOP OF 2-7/8" LINER TOP OF 7" LNR I-I 10739' 4-1/2" TBG, 12.6#, 13-CR VAM-ACE, I 10791' .0152 bpf, ID = 3.958" 9-5/8" CSG, 47#, L-80, ID = 8.681" 10986' 3-112" LNR, 8.81#, 13CR-STL, .0087 bpf, ID = 2.992" ~ 11363' BKR WHIPSTOGK {06127/06) 11385' PIP TAGS (06/27/06) 11395' PBTD -( 11785 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 11850' PERFORATION SUMMARY REF LOG: MCNL/GR ON 07!05/06 ANGLE AT TOP PERF: 66" @ 11464' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2" 6 11464 - 11474 O 03/02/09 2" 6 11474 - 11484 O 03/21/08 2" 6 11494 - 11502 O 03!21108 2" 6 11710 -11800 O 07(06106 2" 6 12050 - 12065 O 07/06/06 2" 6 .12087 - 12113 O 07!06(06 Z-26A ^ SAFELY NOTES: WELL ANGLE > 70° @ 7150' ***CHROME 4-1/2" TBG & 3-1 /2" / 2-7/8" LNR** 221'1' 1-14-112" HES X NIP, ID = 3.813" GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3196 3193 12 MMG DOME RK 16 02/17/07 5 5232 4817 49 MMG DMY RK 0 02!17!07 4 6848 5883 46 MMG DOME RK 16 02!17/07 3 8162 6811 54 MMG DMY RK 0 09/05/03 2 9503 7613 51 MMG DOME RK 16 02/17/07 1 10563 8294 46 MMG SO RK 22 02!17/07 10633' -~4-112" HES X NIP, ID = 3.813" 10653' 9-518" X 4-1/2" BKR S-3 PKR, ID = 3.875" 10678' - 4-1/2" HES X NIP, ID = 3.813" 1072$' 3.70" BKR DEPLOY SLV, ID = 3.00" 10755' 3-1/2" HES X NIP, ID = 2.813" 10780' 4-112" HE5 XN NIP, MILLED ID = 3.80" 10793' 4-1/2" WLEG, ID = 4.0" 11185' TOP OF LNR CEMf~ 11196' --{7'" MARKER JOI~ 11363' 3-1/2" X 2-7l8" XO, ID = 2.441" MILLOUT WINDOW jZ-26A) 11390' - 11398' ' PBTD 12186' 2-7/8" LNR, 6.17#, 13CR-85 STL, .0058 bpf, ID = 2.441" -~ DATE REV BY COMMENTS DATE REV BY COMMENTS 06109/89 FERREL ORIGINAL COMPLETION 02!17/07 BSEIPAG GLV CIO 09/07/03 DACIKK RWO 02/17/07 CJN/PAG PULL FISH 1 SAFETY NOTE CHG 07t06t06 NORDIC1 CTD SIDETRACK Z-26A) 03!05109 RLM/SV ADPERF {03102/09} 07(12/06 JCMlTLH GLV C/O 07/15/06 MSEITCH DRLG DRAFT CORRECTIONS 08/25/06 ITCH DRAFT FINAL CORRECTIONS PRUDHOE BAY UNIT WELL: Z-26A PERMIT No: 2060790 API No: 50-029-21945-01 SEC 19, T11N, R12E, 721' FNL & 1844' FWL BP Exploration (Alaska} ~ BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 ~ ~_ ~ ~~~~~~~' ~a _~ :~ ,~ .~ ~t~~~ August 14, 2009 Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB Z-Pad Dear Mr. Maunder, LJ bp ~~~.v~~~~~ OCT 0 5 20Q9 alask~ ~ii ~a Gas Gons. Co~i~eio,n Anchorage ~~~ ° ~`~9 ~.-.-~a.~~ Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB Z- 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, Anna Dube, at 659-5102. Sincerely, Torin Roschinger BPXA, We1f lntegrity Coordinator . ~ BP Exploration (Alaska ) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) Date Z-Pad 8/13/2009 Well Name PTD # API # Initial top of cement Vol, of cement um ed Final top of cement Cement top off date Corrosion inhibitor Corrosion inhibitor/ sealant date ft bbls ft na al Z-01 B 2081080 50029218300200 NA 0.2 NA 3.40 7/24/2009 Z-02A 1960430 50029218140100 NA 0.4 NA 3.40 7/24/2009 Z-03 1971310 50029227870000 NA 1.3 NA 11.90 7/24/2009 Z-04A 2042300 50029219900100 NA 1.5 NA 14.50 7/24/2009 Z-05 1900780 50029220560000 NA 1 NA 8.50 7/24/2009 Z-O6 1880320 50029217980000 NA 0.1 NA 1.70 7/24/2009 Z-07A 1931100 50029220460100 NA 2 NA 17.00 7/24/2009 Z-08A 1931280 50029217870100 NA 0.2 NA 2.55 7/24/2009 Z-09A 208i410 50029219670100 NA 0.2 NA 1.70 7/24/2009 Z-10 1891160 50029219860000 NA 1.3 NA 1t.10 7/24/2009 Z-11A 2050310 50029220530100 NA 0.2 NA 1.70 7/26/2009 z-12 1891020 5002s21s77000o NA 12 NA s.5o 7/26/2oos Z-13A 2042030 50029220690100 NA 3.6 NA 24.66 7/26/2009 Z-14B 2060990 50029218440200 NA 0.2 NA 1.70 7/26/2009 Z-15 1880880 50029218490000 NA 0.2 NA 1.70 7/26/2009 Z-16 1920120 50029222450000 NA 0.3 NA 2.55 7/26/2009 Z-17 1891390 50029220010000 NA 3.7 NA 34.00 7/26/2009 Z-18 1890960 50029219710000 NA 0.2 NA 1.70 7/26/2009 Z-19A 2061050 50029222510100 NA 0.2 NA 1.70 7/26/2009 Z-20 1881000 50029218590000 NA 0.2 NA 1.70 7/26/2009 Z-21 A 2001010 50029219380100 NA 0.2 fVA 1.70 7/23/2009 Z-22B 1960350 50029220370200 NA 0.5 NA 5.10 7/23/2009 Z-23B 2041080 50029219500200 NA 0.3 NA 1.70 7/23/2009 Z-24 1890180 50029219170000 NA 0.3 NA 2.55 7/23/2009 Z-25 1881590 50029219020000 NA 0.2 NA 1.70 7/23/2009 Z-26A 2060790 50029219450100 NA 0.3 NA 3.40 7/23/2009 Z-27 1900310 50029220220000 NA 0.2 NA 2.55 7/25/2009 Z-28 1881270 50029218790000 NA 0.2 NA 1.70 7/25/2009 Z-29 1890650 50029219540000 NA 0.2 NA 1.70 7/25/2009 Z-30A 2032190 50029220130100 NA 0.2 NA 3.40 7/25/2009 Z-31 1881120 500292187t0000 NA 0.3 NA 3.40 7/26/2009 Z-326L1 1970350 500292f924S000 NA 0.2 NA t.70 7/25/2009 Z-33A 1890050 50029218950100 NA 0.5 NA 3.40 8/8/2009 Z-35 1980930 50029228840000 NA 1.3 NA 11.50 7/4/2009 Z-38 1980600 50029228730000 NA 1.2 NA 11.90 7/26/2009 Z-39A 2042240 50029229950100 NA 3.8 NA 39.90 7/25/2009 Z-46A 2052030 50029232800100 NA 1.7 NA 13.60 7/26/2009 Z-100 2031710 50029231820000 NA 5 NA 45.90 7/23/2009 Z-101 2001620 50029229780000 NA 1 NA 10.20 7/23/2009 Z-102 2070500 50029233530000 NA 1.5 NA 15.30 7/25/2009 Z-103 2042290 50029232350000 NA 1.5 NA 10.20 7/25/2009 Z-1o8 2052010 50029232920000 NA 1.5 NA 11.90 7/24/2009 Z-t 12 2071720 50029233800000 NA surface NA • L~ L Ti~A/U~11/I/TEL ~,~ - ~~, ProActive Diagnostic Services, Inc. To: AOGCC Christine Mahnken 333 W. 7th Ave Suite 100 Anchorage, Alaska 99501 (907) 793-1225 RE : Cased Hole/Open Hole/Mechanical Logs and/or Tubing Inspection(Caliper/ MTT) The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the following BP Exploration (Alaska), Inc. Petrotechnical Data Center Attn: Joe Lastufka LR2-1 900 Benson Blvd. Anchorage, Alaska 99508 and ~. r~~~ ~~~% ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West international Airport Road Suite C Anchorage, AK 99518 ~~~-~ ~'~ Fax: (907) 245-8952 ' ~'~ ~ ~~~ ~ ~ 1) Coil Flag 2&Feb-09 Z-26A EDE 50-029-21945-01 2) Signed Print Name: ~;, 1 ~ J ti ~.1 Date PROACTIVE DIAGNOSTIC SERVICES, INC., 130 W. INTERNATIONAL AIRPORT RD SUITE C, ANCHORAGE, AK 99518 PHONE: (907)245-8961 FAX: (907)2458952 E-MAIL: vaa~~f;:,'7~~~~5+yc%~tv3~~'s3t3s'~d9fl~a,i,Jfi'3 {NEBSITE ~v`,4.~~ 2f"~;'fi?L ,'a~"' f"""~- C:~Documenls and Settingsl0wnalDesktopl'tYansmit_SP.docx c.,.i' STATE OF ALASKA ALA~OIL AND GAS CONSERVATION COM~ION ~E~EI\/E® 3-/O~ ~IA~ ~ 9 2009 REPORT OF SUNDRY WELL OPERATIONS ,~iaska Oi0 ~ Gas Cons e~,~,m 1. Operations Abandon ~ Repair Well ~ Plug Perforations ~ Stimulate ~ Other ~ Qnr orb^9 Performed: Alter Casing ~ Pull Tubing ~ Perforate New Pool ~ Waiver Time Extension ~ a Change Approved Program ~ Operat. Shutdown ~ Perforate Q ~ Re-enter Suspended Well 2. Operator BP Exploration (Alaska), Inc. 4. Current Well Class: 5. Permit to Drill Number: Name: Development - Exploratory ~~ 2os-o7so 3. Address: P.O. Box 196612 Stratigraphic Service 6. API Number: Anchorage, AK 99519-6612 50-029-21945-01-00 7. KB Elevation (ft): 9. Well Name and Number: 89.47 RT - PBU Z-26A - 8. Property Designation: 10. Field/Pool(s): _ ADLO-028262 ~ PRUDHOE BAY Field/ PRUDHOE OIL Pool _ _.... 11. Present Well Condition Summary: Total Depth measured 12220 ` feet Plugs (measured) None true vertical 9102.86• feet Junk (measured) None Effective Depth measured 12186 - feQt ~ ? z ~'' true vertical 9077.69 - feet Casing Length Size MD TVD Burst Collapse Conductor 110 20"92.5# H-40 74 - 184 74 - 184 1490 470 Surface 2549 13-3/8' 68# L-80 73 - 2622 73 - 2622 4930 2270 Production 10914 9-5/8" 47# L-80 72 - 10986 72 - 8599 6870 4760 Liner 651 7" 26# L-80 10739 - 11390 8419 - 8873 7240 5410 Liner 635 3-1/2" 8.81# 13CR80 10728 - 11363 8411 - 8857 10160 10530 Liner 857 2-7/8" 6.17# 13CR85 11363 - 12220 8857 - 9103 13450 13890 Perforation depth: Measured depth: SEE ATTACHED - _ _ _ _ True Vertical depth: _ _ _ _ Tubing: (size, grade, and measured depth) 4-1/2" 12.6# 13Cr80 21 - 10791 0 0 - Packers and SSSV (type and measured depth) 4-1/2" Baker S-3 Perm Packer 10653 0 0 0 0 0 0 12. Stimulation or cement squeeze summary: Intervals treated (measured): 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: 246 2540 932 267 Subsequent to operation: 238 2719 928 285 14. Attachments: 15. Well Class after proposed work: Copies of Logs and Surveys Run Exploratory ~ Development ~!- Service Daily Report of Well Operations X 16. Well Status after proposed work: Oil ~ Gas ~ WAG GINJ WINJ WDSPL 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 Gary Preble Printed Name Gary Pr Title Data Management Engineer Signature Phone 564-4944 Date 3/9/2009 stop Form 10-404 R vised 04/2006 ' ° ~ ~ "~~~' ~ '~~~ 3't ~ t' SubmitiO~iginal Only, Z-26A 206-079 PERF OTTOCHMENT • Sw Name . Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base Z-26A 7/6/06 PER 11,710. 11,800. 8,949.6 8,960.04 Z-26A 7/6/06 PER 12,050. 12,065. 8,999.27 9,005.64 Z-26A 7/6/06 PER 12,087. 12,113. 9,015.88 9,029.69 Z-26A 3/21/08 PER 11,474. 11,484. 8,914.85 8,918.47 Z-26A 3/21/08 PER 11,494. 11,502. 8,921.8 8,924.25 Z-26A 3/2/09 APF 11,464. 11,474. 8,910.95 8,914.85 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG P ULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE • Z-26A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY ACTIVITYDATE ~ SUMMARY 3/2/2009 ~ CTU #5 w/ 1.75" OD CT. Objective: perforate. Resume operations after weather standby. MU and RIH with SLB TCP 2.0" OD perforation gun (loaded with 10' of PJ omega HMX charges, 6 SPF, 60 deg phasing). RIH ~ `to flag and correct depth to Top Shot, PUH to Top Shot depth (11464') and ~ launched 1/2" aluminum ball. Ball on seat at 32.1 bbls and sheard at 2700psi and POOH. Perforate interval 11464' - 11474' ELMD (ref: Sperry ~ SGRC/EWR/ROP dated 05-July-2006). OOH and all shots fired, continue RD , ' Job continued on WSR 3/3/09 1 CTU #5 1.75" CT <InterACT is Publishing> ADPERF continued from WSR 3/2/09. All shots fired and 1/2" ball recovered, continue RD. POP well with DSO and well is flowing and turned over to production. ***Job complete*"" FLUIDS PUMPED BBLS 1 diesel 1 Total l~ ~v..y DATA SUBMITTAL COMPLIANCE REPORT 7i7~2oos Permit to Drill 2060790 Well Name/No. PRUDHOE BAY UNIT Z-26A Operator BP EXPLORATION (ALASKA) INC MD 12220 TVD 9103 Completion Date 7/6/2006 Completion Status 1-OIL Current Status 1-OIL REQUIRED INFORMATION Mud Log No Samples No API No. 50-029-21945-01-00 UIC N Directional Su DATA INFORMATION Types Electric or Other Logs Run: MWD RES / GR / ROP, MCNL / GR /CCL Well Log Information: Log/ Electr Data Digital Dataset (data taken from Logs Portion of Master Well Data Maint Log Log Run Interval OH / i pe meairrmt rvumoer Name 5caie media No Start Stop CH Received Comments ED D Asc Directional Survey 35 12220 Open 7/19/2006 ' ~t 14026 LIS Verification Open 8/22/2006 ~og Neutron 2 Blu 1 10540 12097 Case 7/25/2006 MCNL, GR, CCL, TNN, TNF 5-Jul-2006 -ED C Pds 13998 Neutron 2 1 10540 12097 Case 7/25/2006 MCNL, GR, CCL, TNN, TNF 5-Jul-2006 ~D C Lis 13998 Induction/Resistivity 0 0 Open 7/25/2006 DEPT, DRCH, FCNT, CCL w/Graphics ,;~D C Lis 14026 Induction/Resistivity 11217 12174 Open 8/22/2006 GR, FET, ROP, Res „j~ED C Lis 15019 Induction/Resistivity 11217 12219 Open 4/17/2007 LIS Veri, GR, FET, ROP ' w/Graphics CGM, EMF, PDF Log See Notes 2 Blu 0 10700 Open 5/20/2008 Mem Gas Lift, GR, CCL, Gradio, STP 23-Apr-2008 ED C Pds 16312 See Notes 0 10700 Open 5/20/2008 Mem Gas Lift, GR, CCL, Gradio, STP 23-Apr-2008 Nell Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments DATA SUBMITTAL COMPLIANCE REPORT 7/7/2008 Permit to Drill 2060790 Well Name/No. PRUDHOE BAY UNIT Z-26A Operator BP EXPLORATION (ALASKA) INC API No. 50-029-21945-01-00 MD 12220 TVD 9103 Completion Date 7/6/2006 Completion Status 1-OIL Current Status 1-OIL UIC N ADDITIONAL INFORMATION c~~ Well Cored? Y~ Daily History Received? ~'.3 N Chips Received? Y / N Formation Tops Q/ N Analysis Y / N Received? Comments: Compliance Reviewed By: Date: 05/20/08 ~chlumberger Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Well .Inh f! NO.4712 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 1 nn 11e~.. w:.... n_~-- MPB-04A 12021150 MEM PROD PROFILE ~ 04/17/08 1 1r MPG-13 12021151 MEM INJECTION PROFILE =C _ 04/18/08 1 1 Z-26A 11978454 MEM GLS 9000-p 04/23/08 1 1 Z-29 11978453 MEM GLS - 04/2?J08 1 1 Y-36 12005204 MEM GLS y 02/12/08 1 1 4-14A/S-37 12031471 _ PRODUCTION PROFILE WJFSI 04/12/08 1 1 Y-07A 11966254 SCMT / 05/02/08 1 1 02-01 B 11966257 LDL ~ (p 05/10/08 1 1 X-16A 11975771 USIT L. C 05/14/08 1 1 07-26 12061688 USIT - 05/16/08 1 1 05-34 11966251 USIT 04/13/08 1 1 OS-23A 118966257 USIT ( 05/13/08 1 1 S-33 11962596 USIT - 04/15/08 1 1 V-223 12061688 CH EDIT PDC GR (USIT `~ - ( 03/23/08 1 V-220 40016600 OH MWD/LWD EDIT 'fib _ 03/03/08 2 1 4-14A/S-37 40016545 OH MWD/LWD EDIT p~ ~U ( / 02/18/08 2 1 05-226 11628800 MCNL 10/22/07 1 1 05-136 12021140 MCNL ~ 01/31/08 1 1 Z-10 12066520 RST (~L 04/10/08 1 1 D-10 11975766 RST 04/25/08 1 1 rrr.v._ r.v.~.~v •~~~v M~ ..vv ~,r 1 u I VI MY IIYV I11YV nGl Vn1Y11Y1'1 VIYG liVPi CNVfI 1 V. BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd. ` r, Anchorage, Alaska 99508 Date Delivered: `.'I~I(~li~ ~ '~ '` ~_` ,~ ~.;~„ ~'..;~~r~., Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Received by: ~ 1 ~J CI \ ~~ 1 ~ ~ ALAS~OIL AND GAS CONSERVATION COMM~ION ~~~~ REPORT OF SUNDRY WELL OPERATIONS MAR ~ 4 ~00~ 1. Operations Abandon ~ Repair Well ~ Plug Perforations ~ Stimulate ~ , ,«,; e Performed: Alter Casing ~ Pull Tubing ~ Perforate New Pool ~ Waiver ~ ~ Gs VII ime xtension .< Change Approved Program ~ Operat. Shutdown Perforate ~ Re-enter Suspl;nded Well 1C~lOf~@ 2. Operator BP Exploration (Alaska), Inc. 4. Current Well Class: 5. Permit to Drill Number: Name: Development ~' Exploratory 2os-o7so- 3. Address: P.O. Box 196612 Stratigraphic S2rVICe ~~: 6. API Number: Anchorage, AK 99519-6612 50-029-21945-01-00 7. KB Elevation (ft): 9. Well Name and Number: `^ 89.47 RT ~ PBU Z-26A - 8. Property Designation: 10. Field/Pool(s): , ADLO-028262 - PRUDHOE BAY Field/ PRUDHOE OIL Pool 11. Present Well Condition Summary: Total Depth measured 12220 feet Plugs (measured) None true vertical 9103 - feet Junk (measured) Dog Collar Die@ ?? Effective Depth measured 12186 feet true vertical 9078 - feet Casing Length Size MD TVD Burst Collapse Conductor 110' 20" 92.5# H-40 74' - 184' 74' - 184' 1490 470 Surface 2549' 13-3/8" 68# L-80 73' - 2622' 73' - 2622' 4930 2270 Production 10914' 9-5/8" 47# L-80 72' - 10986' 72' - 8599' 6870 4760 Liner 651' 7" 26# L-80 10739' - 11390' 8419' - 8873' 7240 5410 Liner 635' 3-1/2" 8.81# 13CR80 10728' - 11363' 8411' - 8857' 10160 10530 Liner 857' 2-7/8" 6.17# 13CR8 5 11363' - 12220' 8857' - 9103' 13450 13890 / ' P f i d h M ~ 12113 er orat on ept : easured depth: 11474 - 11484 ~ ~/ 11494 - 11502 - 11710 - 11800 12050 - 12065 12087 - True Vertical depth: 8915 - 8918 8922 - 8924 8949.6 - 8960.04 8999.27 - 9005.64 9015.88 - 9029.69 Tubing: (size, grade, and measured depth) 4-1/2" 12.6# 13CR80 69' - 10793' Packers and SSSV (type and measured depth) 9-5/8" BKR S-3 PACKER 10653' 4-1/2" HES X NIPPLE 2211' 0 0 0 0 12. Stimulation or cement squeeze summary: Intervals treated (measured): 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: 73 260 1209 0 254 Subsequent to operation: 79 278 980 0 278 14. Attachments: 15. Well Class after Droposed work: Copies of Logs and Surveys Run Exploratory ~ Developm ent Service Daily Report of Well Operations x 16. Well Status after proposed work: Oil Gas WAG GINJ WINJ ~' WDSPL 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 Gary Preble Printed Name Gary Preble Title Data Engineer Signature Phone 564-4944 Date 3/24/2008 Form 10-404 evised 04/2004 ~,~~~~~ ~~ t~~~~J c~~ ~~ Submit Original Only t ~ . Z-26A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY ACTIVITYDATE I SUMMARY 3/20/2008 3/21 /2008 "**CTU #9 Job Scope: Drift/Log CT Flag & Add Perfs~~* MIRU 1.75" CT, MU 1 11/16" MHA w/1.90" no-go, 1.688" blank sub, 1.99" x-over, SWS Memory CCL/Gama in 2.2" carrier OAL= 16.87'. Freeze protect flowline. RIH and Log from 11650' to 11350', paint flag @ 11449.9' electronic ,11446 mechanical CTM. *"*Job continued on 3/21/08**~" **"CTU #9 Job Scope: Add Perfs*** «InterAct not publishing» Continue job from weather hold -42 deg F RIH w. 2" gun, 6 spf, 60 deg, 2006PJ Omega HMX 10' loaded, 10' spacer, 8' loaded. Stop at CT flag and corrected to top shot. Continue pasted shooting depth, lauched 1/2" aluminum ball and PUH to shooting depth of 1 474'-11484':10' spacer, 1149402' (Phase I of perf procedure) POOH, OOH w. all shots fired. Perform weekly BOPE testing. RD CTU Released well to DSO to bring on line for 24 hrs then put in test. Note: this is Phase I of the perf procedure. Phase II is dependant on the out come of the well test. ***Phase I of job complete*** FLUIDS PUMPED BBLS 35 1 % KCL W/0.6% SAFELUBE 35 Total WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Librarian 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 RE: MWD Formation Evaluation Logs: Z-26A, Z-26A: Digital Log Images: 50-029-21945-01 April 13, 2007 AK-MW-4480472 1 CD Rom PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Services Attn: Rob Kalish 6900 Arctic Blvd. Anchorage, Alaska 99518 Date: C~ -- BP Exploration (Alaska) Inc. Petro-technical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Signed: '~~ ~ ~~ ~~~~ .~.~, ~.~i ~ ~ figs ~ ~~ c, ~. fib ' ~' ~~ -o~ r so~~ ~~ STATE OF ALASKA /~~ ' ~~~p ,r . . ,: V + ;. ,.;. ALASK~ AND GAS CONSERVATION COMMIS ~~ ~ ~ REPORT OF SUNDRY WELL OPERATIONS ~~~~^ ,~ _ ~O(fr 1. Operations Abandon ~ Repair Well ~ Plug Perforations ~ Stimulate0 Other ~,~ W Performed: Alter Casing ~ Pull Tubing ~ Perforate New Pool ~ Waiver ~ Time Extension ~ e;F~n ~~U Change Approved Program ~ Operat. Shutdown ~ Perforate ~a6 ~ Re-enter Suspended Well 2. Operator BP Exploration (Alaska), Inc. 4. Current Well Class: 5. Permit to Drill Number: Name: .Development ~ Exploratory 2o6-o7so 3. Address: P.O. Box 196612 Stratigraphic ~ Service 6. API Number: Anchorage, AK 99519-6612 50-029-21945-01-00 ~ 7. KB Elevation (ft): 9. Well Name and Number. 89.47 RT ~ PBU Z-26A ~ 8. Property Designation: 10. Field/Pool(s): ADLO-028262 ~ PRUDHOE BAY Field/ PRUDHOE OIL Pool ~ 11. Present Well Condition Summary: Total Depth measured 12220 feet Plugs (measured) None true vertical 9103 feet Junk (measured) Dog Collar DieC~ ?? Effective Depth measured 12186 ~ feet true vertical 9078 feet Casing Length Size MD TVD Burst Collapse Conductor 110' 20" 92.5# H-40 74' - 184' 74' - 184' 1490 470 Surface 2549' 13-3/8" 68# L-80 73' - 2622' 73' - 2622' 4930 2270 Production 10914' 9-5/8" 47# L-80 72' - 10986' 72' - 8599' 6870 4760 Liner 651' 7" 26# L-80 10739' - 11390' 8419' - 8873' 7240 5410 Liner 635' 3-1/2" 8.81# 13CR80 10728' - 11363' 8411' - 8857 10160 10530 Liner 85T 2-7/8" 6.17# 13CR85 11363' - 12220' 8857 - 9103' 13450 13890 Perforation depth: Measured depth: 11710 - 11800 12050 - 12065 12087 - 12113 True Vertical depth: 8949.6 - 8960.04 8999.27 - 9005.64 9015.88 - 9029.69 Tubing: (size, grade, and measured depth) 4-1/2" 12.6# 13CR80 69' - 10793' Packers and SSSV (type and measured depth) 9-5/8" BKR S-3 PACKER 10653' 4-1/2" HES X NIPPLE 2211' 0 0 0 0 12. Stimulation or cement squeeze summary: Intervals treated (measured): 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: 97 1704 116 0 241 Subsequent to operation: Shut-in 0 0 0 0 14. Attachments: 15. Well Class after proposed work- Copies of Logs and Surveys Run Exploratory Development Service Daily Report of Well Operations x 16. Well Status after proposed work: Oil ~ Gas WAG GINJ ~ WINJ ~ WDSPL 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: Contact Gary Preble Printed Name Gary Preble Title Data Engineer Signature Phone 564-4944 Date 1/9/2007 Form 10-404 Revised 04/2004 ~ ~' ~ t ~ ~ ~ ! ~~~ ` Submit Original Only w...+ `, l f.... • Z-26A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY °~ ACTIVITYDATE SUMMARY 1/6/2007°"CTU #9, Acid treatment Continue to pump NH4CL water at min rate waiting for ', replacement shower trailer. Pump acid treatment as per program; '' INJECTIVITIES ''fluid bpm WHP 'NH4CL .6 2140 12% HCL 1.8 1465 9:1 mud acid 1.9 1194 'NH4CL 2.0 1194 wax divert 1.7 1500 `12% HCL 1.8 1335 9:1 mud acid 1.8 1150 _; NH4CL 1.8 1120 Saw good break down(s) and diversion. POOH pumping 60/40 down backside to fill coil voidage and FP well to 2500'. Inspect chains and change out pack-offs. RD CTU #9. Well handed over to ASRC to test. *** Job Complete *"* FLUIDS PUMPED BBLS 221 NH4GL H2O 148 12% HCL ACID 149 9:1 MUD ACID 112 60/40 METHANOL 630 TOTAL STATE OF ALASKA • ~~~"`~~~ ALASF~A OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIO S `~ ~~~~ 1. Operations Performed: Abandon^ Repair Well^ Plug Perforations^ Stimulate ^X ~ Alter Casing^ Pull Tubing^ Perforate New Pool^ Waiver^ Time Extension^ Change Approved Program^ Operation Shutdown^ Perforate ^ Re-enter Suspended Well^ 2.Operator 4. Current Well Class: 5. Permit to Dritl Number: BP Exploration (Alaska), Inc. Name: Development ^X Exploratory^ - 7 3. Address: P.O. Box 196612 6. API Number Anchorage, Ak 99519-6612 Stratigraphic^ Service^ 50-029-21945-01-00 7. KB Elevation (ft): 9. Well Name and Number: ss.a7 Z-26A 8. Property Designation: 10. Field/Pool(s): ADL-028262 Prudhoe Bay Field / Prudhoe Bay Pool 11. Present Well Condition Summary: Total Depth measured 12220 feet true vertical 9103.0 feet Plugs (measured) None Effective Depth measured 12186 feet Junk (measured) Dog Collar Die @ ?? (07/05/2006) true vertical 9078.0 feet Casing Length Size MD TVD Burst Collapse CONDUCTOR 110 20" 91.5# H-40 74 - 184 74.0 - 184.0 1490 470 SURFACE 2549 13-318"68# L-80 73 - 2622 73.0 - 2622.0 4930 2270 PRODUCTION 10914 9-5/8" 47# L-80 72 - 10986 72.0 - 8599.0 6870 4760 LINER 651 7" 26# L-80 10739 - 11390 8419.0 - 8873.0 7240 5410 LINER 635 3-1/2" 8.81# 13Cr80 10728 - 11363 8411.0 - 8857.0 10160 10530 LINER 857 2-7/8" 6.17# 13Cr85 11363 - 12220 8857.0 - 9103.0 13450 13890 Perforation depth: Measured depth: 11710-11800, 12050-12065, 12087-12113 True vertical depth: 8950-8860, 8999-9006, 9016-9030 Tubing (size, grade, and measured depth): 4-1/2" 12.6# 13Cr80 @ 69 - 10793 Packers & SSSV (type & measured depth): 9-5/8" BKR S-3 Packer @ 10653 4-1/2" HES X Nipple @ 2211 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13 Rearesentative Daily Average Production or Infection Data Prior to well operation: Subsequent to operation: 14. Attachments: 15. Well Class after proposed work: Exploratory^ Development^X Service^ Copies of Logs and Surveys run _ 16. Well Status after proposed work: Daily Report of Well Operations _ X Oil^X Gas^ WAG ^ GINJ^ WINJ^ WDSPL^ Prepared by DeWayne R. Schnorr (907) 564-5174 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: Contact DeWayne R. Schnorr N/A Printed Name DeWayne R. Schnorr Title Petroleum Engineer Signature 74 Date 10/18/06 Oil Bbl Gas-Mcf Water-Bbl Casin Pressure Tubing Pressure 209 741 184 --- 236 97 1,704 116 --- 241 Form 10-404 Revised 4/2004 ~ ~ ~ G 1 ~ A L • • Z-26A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 09/11/2006 ASRC Well Test 234.4 bfpd 126.4 bopd 45% W/C 0.398 mmscf/d 1.70 mm G/L 3151 GOR 62 deg WHT 176 Beans 09/16/2006 BOPD: 132 BWPD: 120 MCFPD: 3,515 AL Rate: 1,660 09/29/2006 T/I/0=1930/1940/230 Temp=S1 Shut in A/L @ skid and bled ALP to < 100 psi. TIFL PASSED (pre-Coil). FIPs has well listed as natural producer but is actually PAL. Initial IA FL @ 5232' ST #2 (280 bbls). Bled IAP to production from 1940 psi to 800 psi in 60 minutes. Shut in IA bleed and monitor for 1 hour. While bleeding the IAP the TBG pressure decreased 40 psi to 1890 psi and the OAP decreased 20 psi to 210 psi. IA FL remained unchanged during IA bleed. TBGP increased 50 psi, the IAP increased 20 psi and the OAP, IA FL remained unchanged post monitor. Final WHPs=1940/820/210. 09/30/2006 T/I/0= 1960/830/220. Temp.= SI. ALP= 830 and is SI @ casing & lateral valves. WHPs. (post TIFL). TBGP increased 20 psi overnight. IAP increased 10 psi overnight. OAP increased 10 psi overnight. 10/03/2006 CTU #5 "** CT Lithium Hypochlorite Treatment*** MIRU can not raise CT mast due to wind limitations, Stand By. 10/03/2006 ASRC Well Test (Bleach Treatment Flow-back) **stand-by for CTU operations 10/04/2006 ASRC Well Test (Bleach Treatment Flow-back) "*stand-by for CTU operations 10/05/2006 CTU #5. Bleach Treatment. Wait on weather till 06:00 hrs, Well flowing upon arrival. Load well with 2% KCI. RIH with BHA #1:2.20" BDN. Ratty minimum rate tag at 11760' ctm. Dry tag at 11754'. Poss dog collar slip lost during RWO hanging CT up Call and talked w. town APE changed pump schedule to pump from above perfs. 10/05/2006 ASRC Well Test (Bleach Treatment Flow-back) **stand-by for CTU operations 10/06/2006 CTU #5 Continue injecting 150 bbls Safe-Break L into perfs never saw any indication of break over in WHP POOH & POP well through test sep # 3 **'`Job Complete*** 10/06/2006 ASRC Well Test (Bleach Treatment Flow back) Stand by for CTU operations. Flow back bleach. 10/07/2006 ASRC Well Testing Bleach Treatment Flow Back and Well Test. ASRC Well Test 345.9 bfpd 23.1 bopd 92.87% w/c 0.271 mmscf/d 2.68 mm G/L 11711 GOR 79 deg. F wht 176 beans Page 1 • • Z-26A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS FLUIDS PUMPED BBLS 68 60/40 Methanol Water 329 2% KCL Water 68 2% KCL with 0.6% Safe Lube 160 5# /bbl Safe-Break L in 2% KCL Water 625 TOTAL Page 2 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Pertormed: Abandon Repair Well Plup Perforations Stimulate X^ OtherO Alter Casing Pull Tubing Perforate New Pool Waiver Time Extension Change Approved Program Operation Shutdown Perforate ~ Re-enter Suspended Well 2. Operator Name: BP Exploration (Alaska), Inc. 4. Current Well Class: Development OX Exploratory 5. Permit to Drill Number: 790 3. Address: P.O. Box 196612 6. API Number Anchorage, Ak 99519-6612 Stratigraphic~ Service 50-029-21945-01-00 7. KB Elevation (ft): 9. Well Name and Number: 89.x7 Z-26A 8. Property Designation: 10. Field/Pool(s): ADL-028262 Prudhoe Bay Field / Prudhoe Bay Pool 11. Present Well Condition Summary: Total Depth measured 12220 feet true vertical 9103.0 feet Plugs (measured) None Effective Depth measured 12186 feet Junk (measured) Dog Collar Die @ ?? (07/05/2006) true vertical 9078.0 feet Casing Length Size MD TVD Burst Collapse CONDUCTOR 110 20" 91.5# H-40 74 - 184 74.0 - 184.0 1490 470 SURFACE 2549 13-3/8"68# L-80 73 - 2622 73.0 - 2622.0 4930 2270 PRODUCTION 10914 9-5/8" 47# L-80 72 - 10988 72.0 - 8599.0 6870 4780 LINER 651 7" 26# L-80 10739 - 11390 8419.0 - 8873.0 7240 5410 LINER 635 3-112" 8.81# 13Cr80 10728 - 11363 8411.0 - 8857.0 10160 10530 LINER 857 2-718" 6.17# 13Cr85 11363 - 12220 8857.0 - 9103.0 13450 13890 Perforation depth: Measured depth: 11710-11800, 12050-12065, 12087-12113 True vertical depth: 8950-8960, 8999-9006, 9016-9030 Tubing (size, grade, and measured depth): 4-112" 12.6# 13Cr80 Packers & SSSV (type & measured depth): 9-518" BKR S-3 Packer 4-112" HES X Nipple @ 69 - 10793 @ 10653 @ 2211 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 113 Prior to well operation Subsequent to operation 114. Attachments: 5. Well Class after proposed work: Exploratory^ Development~X Service Copies of Logs and Surveys run _ 16. Well Status after proposed work: Daily Report of Well Operations _ X OiI~X Gas WAG ~ GINJ~ WINJ~ WDSPL~ Prepared by DeWayne R. Schnorr (907) 564-5174 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: Contact DeWayne R. Schnorr NIA Printed Name DeWayne R. Schnorr Title Petroleum Engineer Signature Phone 564-5174 Date 10/18/06 Form 10-404 Revised 4/2004 Production or Infection Data oil-Bbl Gas-Mcf water-Bbl Casing Pressure Tubing Pressure 209 741 194 --- 236 97 1,704 116 --- 241 TREE = MCEV OY WELLHEAD = FMC ACTUATOR= BAKER KB. ELEV = 89.47' BF. ELEV = 55.25' KOP = 3100' Max Angle = 89 @ 11698' Datum MD = 11,417' Datum TV D = 8800' SS 13-3i8" CSG, 68#, L-80, ID = 12.415" )-~ 2622' Minimum ID = 2.370" @ 11363' TOP OF 2-7/8" LINER Z ~ ~ ~ S NOTES: ***CHROM E 4-1 /2" .TBG & 3-1 /2" / ~ 2-7/8" LNR** 73° @ 11505' BELIEVE RSH IS LOCATED IN GLM#4 @ 6858' AS OF 07/15/06) 2211' 4-1/2" HES X NIP, ID = 3.813" GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3196 3193 12 MMG DOME RK 16 07/12/06 5 5232 4817 49 MMG SO RK 20 07/12/06 4 6848 5883 46 MMG DMY RK 0 09/05/03 3 8162 6811 54 MMG DMY RK 0 09/05/03 2 9503 7613 51 MMG DMY RK 0 09/05/03 1 10563 8294 46 MMG DMY RK 0 09/05/03 10633' ~ 4-1 /2" HES X NIP, ID = 3.813" UNKNOWN DOG COLLAR DIE (07/05/06) 10653' 9-5/8" X 4-112" BKR S-3 PKR, ID = 3.875" 10678' 4-112" HES X NiP, IO = 3.813" TOP OF 7" LNR 4-1/2" TBG, 12.6#, 13-CR VAM-ACE, .0152 bpf, ID = 3.958" 9-518" CSG, 47#, L-80, ID = 8.681" I 10986' I 3-112" LNR, 8.81#, 13CR-STL, .0087 bpf, ID = 2.992" ~ 11363' rBKR WHIPSTOCK (06!27106) 11385' 2 RA PIP TAGS (06/27/06) 11395' PBTD 11785' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 11850' PERFORATION SUMMARY REF LOG; MCNL/GR ON 07/05/06 ANGLEATTOPPERF: 87 @ 11710' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2" 6 11710 - 11800 O 07/06/06 2" 6 12050 - 12065 O 07106/06 2" 6 12087 - 12113 O 07/06/06 10728' 3.70" BKR DEPLOY SLV, ID = 3.00" 10755' 3-1/2" HES X NIP, ID = 2.813" 10780` 4-112" HES XN NIP, MILLED ID = 3.80" (BE 10793` 4-1/2" WLEG, ID = 4.0" (BEHIND PIPE] 11185, I--j TOP OF LNR CEMENT I 11196' 7" MARKER JOINT 11363' 3-1/2" X 2-718" XO, ID =2.441" MILLOUT WINDOW (Z-26A) 11390'-11398' PBTD -I 12186' ~-- ~C 2-718" LNR, 6.17#, 13CR-85 STL, .0058 bpf, ID = 2.441" 12220' DATE REV BY COMMENTS DATE REV BY COMMENTS 06/09/89 FE92RE1 ORIGINAL COMPLETION 09/07/03 DAC/KK RWO 07/06/06 NORDIC1 CTD SIDETRACK (Z-26A) 07/12/06 JCM/TLH GLV C/O 07/15/06 MSFJTLH DRLG DRAFT CORRECTIONS 08/25/06 1TLH DRAFT FINAL CORRECTIONS PRUDHOE BAY UNIT WELL: 2-26A PERMIT No: 2060790 API No: 50-029-21945-01 SEC 19, T11 N, R12E:, 721' FNL & 1844' FWL BP Exploration (Alaska) STATE OF ALASKA ~ 1n~j ,LAS IL AND GAS CONSERVATION CO ~SION rV`, ~ WELL COMPLETION OR RECOMPLETION REPORT AND LOG Alaska Oii R~ Gay Cons. CiOmmISSIOn 10/03/06: Revised, Put on Production 1a. Well Status: ® ~ ^ Plugged ^ Abandoned ^ Suspended ^ WAG zoAaczs.,os zoAACZS.~~o ^ GINJ ^ WINJ ^ WDSPL No. of Completions One Other 1b. Well Class: ®Development ^ Exploratory ^ Stratigraphic ^ Service 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Aband. 7/6/2006 12. Permit to Drill Number 206-079 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 7/3/2006 13. API Number 50-029-21945-01-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 7/4/2006 14. Well Name and Number: PBU Z-26A 721 FNL, 3108 FEL, SEC 19, T11 N, R12E, UM Top of Productive Horizon: 3325' FSL, 707' FWL, SEC 17, T11N, R12E, UM 8. KB Elevation (ft): 89.47' 15. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay Total Depth: 3711' FSL, 1487' FWL, SEC 17, T11N, R12E, UM 9. Plug Back Depth (MD+TVD) 12186 + 9078 Ft Pool 4b. Location of Well (State Base Plane Coordinates): Surface: x- 599564 y- 5959360 Zone- ASP4 10. Total Depth (MD+TVD) 12220 + 9103 Ft 16. Property Designation: ADL 028262 TPI: x- 603310 y- 5963457 Zone- ASP4 Total Depth: x- 604083 y- 5963854 Zone- ASP4 11. Depth where SSSV set None MD 17. Land Use Permit: 18. Directional Survey ®Yes ^ No 19. Water depth, if offshore N/A MSL 20. Thickness of Permafrost 1900' (Approx.) 21. Logs Run: MWD RES / GR / ROP, MCNL / GR / CCL 22. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH MD SETTING D EPTH lllD (-TOLE AMOUNT SIZE WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" Conductor. Surface 110' Surface 110' 13-318" 68# L-80 Surface 2622' Surface 2622' 17-1 /2" 3684 cu ft Permafrost 9- /8" 47# L-80 S rf 1 986' Surface 8599' 12-1/4" 2365 cu ft I s'G' 7" 26# L-80 10739' 8419' 8873' 8-1 /2" 368 cu ft Class 'G' s-vz" X z-7/a" 6.81# / 6.17# 13Cr80/85 10728' 12220' 8410' 9103' 4-1 /8" 74 cu ft Class 'G' 23. Perforations open to Production (MD + TVD of Top and 24.' TUBING RECORD Bottom Interval, Size and Number; if none, state "none"): SIZE DEPTH SET MD PACKER SET MD 2" Gun Diameter, 6 spf 4-1/2", 12.6#, 13Cr 10793' 10653' MD TVD MD TVD 11710' - 11800' 8950' - 8960' 12050' - 12065' 8999' - 9006' 25- ACID, FRACTURE, CEMENT SQUEEZE, ETC. 12087' - 12113' 9016' - 9030' DEPTH INTERVAL MD AMOUNT H~ KIND OF MATERIAL USED 2250' Freeze Protect w/ McOH 26. PRODUCTION TEST Date First Production: September 10, 2006 Method of Operation (Flowing, Gas Lift, etc.): Gas Lift Date of Test 9/16/2006 Hours Tested 2 PRODUCTION FOR TEST PERIOD OIL-BBL 11 GAS-MCF 155 WATER-BBL 10 CHOKE SIZE 176 GAS-OIL RATIO 14,016 FIOW Tubing Press. 240 CaSing PreSSUre 840 CALCULATED Z4-HOURRATE~ OIL-BBL 132 GAS-MGF 1,855 WATER-BBL 120 OIL GRAVITY-API (CORK) 31 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). Submit core chips; if none, state "none". None - ~ ~~~. UCH Ej ~ 217~~ Form 10-407 Revised 12/2003 ;.~ G ? ~ONTINUED ON REVERSE SIDE 28. GEOLOGIC MARK 29. ORMATION TESTS Include and brie ummarize test results. List intervals tested, NaMe MD TVD and attach detailed supporting data as necessary. If no tests were conducted, state "None". Sadlerochit /Zone 4 11231' 8771' None (Kicked off in Zone 4, which is the Top of Productive for this sidetrack) 12038' 8995' Zone 3 12150' 9053' Zone 2C 30. List of Attachments: 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Si ned ~ ~ a~n ~ ~/~ 9 Terrie Hubble ~~~~~J_v ~ Title Technical Assistant Date PBU Z-26A 206-079 Prepared ey Name/Number. Terrie Hubble, 564-4628 Well Number Permit No. / A royal No. Drilling Engineer: Mary Errdacotl, 564-4388 INSTRUCTIONS GeNeRa~: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. IreM ia: 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. IreM 4b: TPI (Top of Producing Interval). IreM 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. IreM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: True vertical thickness. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. IreM 23: 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). IreM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). IreM 27: If no cores taken, indicate "None". IreM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only • • WELL LOG TRANSMITTAL To: State of Alaska ~ July 20, 2006 Alaska Oil and Gas Conservation Comm. Attn.: Librarian 333 West 7`" Avenue, Suite 100 Anchorage, Alaska 99501 RE: MWD Formation Evaluation Logs: Z-26A, AK-MW-4480472 1 LDWG formatted Disc with verification listing. API#: 50-029-21945-01 PLEASE. ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Services BP Exploration (Alaska) Inc. Attn: Rob Kalish Petrotechnical Data Center MB33 6900 Arctic Blvd. 900 E. Benson Blvd. Anchorage, Alaska 99518 Anchorage, Alaska 99508 Date: Signed: °°""°`~s~ ,~/' V ~~ AUG 2 2 2006 C?il & Gas Cons. Cammissiar~ Ancix~rage STATE OF ALASKA ALAS~IL AND GAS CONSERVATION COM iSSION ~~C~EIVED ~,UC 0 4 !fl(lb WELL COMPLETION OR RECOMPLETION REPORT AND ~G A~'as a Odf ~ Gas Cans. Commsssion Anrhnra®e 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended ^ WAG zoAACZS.~os zoAACZS.~~o ^ GINJ ^ WINJ ^ WDSPL No. of Completions One Other 1b. Well Class: ®Development ^ Exploratory ^ Stratigraphic ^ Service 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Aband. 7/6/2006 12. Permit to Drill Number 206-079 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 7/3/2006 13. API Number 50-029-21945-01-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 7/4/2006 14. Well Name and Number: PBU Z-26A 721 FNL, 3108 FEL, SEC 19, T11N, R12E, UM Top of Productive Horizon: 3325' FSL, 707' FWL, SEC 17, T11 N, R12E, UM 8. KB Elevation (ft): 89.47' 15. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay Total Depth: 3711' FSL, 1487' FWL, SEC 17, T11 N, R12E, UM 9. Plug Back Depth (MD+TVD) 12186 + 9078 Ft Pool 4b. Location of Well (State Base Plane Coordinates): Surface: x- 599564 y- 5959360 Zone- ASP4 10. Total Depth (MD+TVD) 12220 + 9103 Ft 16. Property Designation: ADL 028262 TPI: x- 603310 y- 5963457 Zone- ASP4 Total Depth: x- 604083 y- 5963854 Zone- ASP4 11. Depth where SSSV set None MD 17. Land Use Permit: 18. Directional Survey ®Yes ^ No 19. Water depth, if offshore N/A MSL 20. Thickness of Permafrost 1900' (Approx.) 21. Logs Run: MWD RES / GR / ROP, MCNL / GR / CCL 22. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH MD SETTING D EPTH TVD HOLE AMOUNT SIZE WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" Conductor Surface 110' Surface 110' 13-3/8" 68# L-80 Surface 2622' Surface 2622' 17-1/2" 3684 cu ft Permafrost 9-5/8" 47# L-80 Surfa 1 98 ' urface 8599' 12-1/4" 2365 c ft lass'G' 7" 26# L-80 10739' 8419' 8873' 8-1/2" 368 cu ft Class'G' 3-vr~xzars° a.a~uis.i~n 13Cr80/85 10728' 12220' 8410' 9103' 4-1/8" 74 cu ft Class'G' 23. Perforations open to Production (MD + TVD of Top and 24. TueING RECORD Bottom Interval, Size and Number; if none, state "none"): SIZE DEPTH SET MD PACKER SET MD 2" Gun Diameter, 6 spf 4-1l2", 12.6#, 13Cr 10793' 10653' MD TVD MD TVD 11710' - 11800' 8950' - 8960' 12050' - 12065' 8999' - 9006' 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 12087' - 12113` 9016' - 9030' DEPTH INTERVAL MD AMOUNT & KIND OF MATERIAL USED 2250' Freeze Protect w/ McOH 26. PRODUCTION TEST Date First Production: Not on Production Yet Method of Operation (Flowing, Gas Lift, etc.): N/A Date of Test Hours Tested PRODUCTION FOR TEST PERIOD OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE GAS-OIL RATIO FIOW TUbing PreSS. CaSing PreSSUre CALCULATED 24-HOUR RATE• OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-API (CORK) 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). .`chips; if none, state "none". N e D ~~/ d~uJ~~ou~ ~~.~~f"D wx~ ~'Q73 w1~ lE0 Form - ' ` d 12/2003 ~ ^ ~ ~ I ~{ AC1NTINUED ON REVERSE SIDE 6T~7~~1f16~ 6d7 ~ pp~[y Q ~ 1~~~ 28. GEOLOGIC MARK 29. ORMATION TESTS Include and brie y summarize test results. List intervals tested, NAME MD TVD and attach detailed supporting data as necessary. If no tests were conducted, state "None". Sadlerochit /Zone 4 11231' 8771' None (Kicked off in Zone 4, which is the Top of Productive for this sidetrack) 12038' 8995' Zone 3 12150' 9053' Zone 2C 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the foreg ing is true nd correct to the best of my knowledge. ~ ~f x Signed Terrie Hubble Title Technical Assistant Date /~ ` /V PBU Z-26A 206-079 Prepared By Name/Number. Terrie Hubble, 564-4628 Well Number Permit No. / A rOVal NO. Drilling Engineer: Mary Endacott, 564-4388 INSTRUCTIONS GeNew-~: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska IreM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. IreM 4b: TPI (Top of Producing Interval). IreM 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. IreM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: True vertical thickness. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. IreM 23: 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). IreM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, or Other (explain). IreM 27: If no cores taken, indicate "None". IreM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only BP EXPLORATION Operations Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Event Name: REENTER+COMPLETE Contractor Name: NORDIC CALISTA Rig Name: NORDIC 1 Date ~ From - To ~ Hours ~ Task Code ~ NPT 6/30/2006 ~ 12:30 - 13:00 0.50 ~ MOB P 13:00-13:151 0.25IMOB ~P 13:15 - 13:30 I 0.251 MOB I P Start: 6/20/2006 Rig Release: 7/6/2006 Rig Number: N1 I Page 1 of 8 Spud Date: 5/13/1989 End: Phase ~ Description of Operations PRE PRE PRE 13:30 - 19:30 6.00 MOB P PRE 19:30 - 20:30 1.00 MOB N RREP PRE 20:30 - 00:00 3.50 MOB P PRE 7/1/2006 00:00 - 08:00 8.00 MOB P PRE 08:00 - 08:15 I 0.25 I MOB I P I I PRE 08:15 - 08:30 I 0.25 I MOB I P I I PRE 08:30 - 12:00 I 3.501 BOPSUFt P I I PRE 12:00 - 18:30 6.501 BOPSUp P I PRE 18:30 - 18:45 0.251 BOPSUaP I PRE 18:45 - 19:00 0.25 RIGU P PRE 19:00 - 20:45 1.75 RIGU P PRE 20:45 - 21:00 0.25 KILL P PRE 21:00 - 21:30 0.50 KILL P PRE 21:30 - 23:30 2.00 KILL P PRE 23:30 - 00:00 0.50 KILL P PRE 7/2/2006 00:00 - 01:45 1.75 ZONISO P WEXIT 01:45 - 02:00 I 0.251 ZONISO I P I !WEXIT 02:00 - 04:30 I 2.501 ZONISO I P I I W EXIT 04:30 - 05:15 ~ 0.75 ~ ZONISO I P ~ (WEXIT Rig released from 07-076 ~ 12:30Hrs on 6/30/2006. Prep to move rig off well. PJSM, Jack-up rig & pull rig off well. Conduct post-operations pad inspection. Held pre-move safety meeting with crew, security & tool services. Move rig from DS#07 to Z-pad. Repair clutch & flush drive pump & motor. Continue moving rig to Z-pad. Continue moving rig from DS#07 to Z-pad. Meanwhile Wells Group mobilize LRS to load & kill well with 5bbls of MEOH & 290bb1s of 1 %KCL-water @ 3-4.5bpm. Initial T/I/O = 2500/0/Opsi. Final T/I/O = 2200 (bleeding down)/0/Opsi. Finished well kill ~ 06:20 Hrs. SAFETY MEETING. Review procedure, hazards and mitigation for backing rig over well. Back rig over well and center over tree. ACCEPT RIG AT 08:30 HRS, 07/01/06. Nipple up ROPE. Position tanks and trailers. R/U IAP and OAP electronic gauges. Fill rig pits with KCL water. Grease swab valve & perform initial BOPE pressure/function test. AOGCC Witness waived by John Crisp. BOPE testing witnessed by Rick Whitlow, BP WSL. Send test report to AOGCC. R/U tiger tank and hardline. Open up well & observe WHP = 700psi, IAP = 7psi, OAP = Opsi. Change out CT packoff. Held PJSM for cutting CT. R/U hydraulic cutter & cut 1000' of CT for fatigue management. Have 13840' of CT left on reel. Held PJSM for killing well. Rehead & M/U BKR LH CTC. Pull test to 35k. Line up to pump via the kill line. Load well with 270bb1s of 2% KCL-water ~ 3.5-2.5bpm & 3000psi. Bleed off well & SI well again. Observe WHP rising & well still flowing. Decide to P&A perfs before milling the XN. Install dart catcher. Pump 5bbls of 2% KCL ahead. Load wiper dart. Launch & chase with 2% KCL. Dart hit C~3 52.1 bbls. Press test CTC & inner reel valve to 3500psi -Observe presurre fluctuation. Suspect air/N2 in CT. Circ another CT volume & retest - OK. PJSM. M/U slick cementing BHA #1 with big hole {0.90" ID) nozzle & 6' CSH tbg pup. Strip into well & M/U injector. Open up well & observe 400psi WHP. IAP = 7psi, OAP = Opsi. Strip/snub in hole with cementing BHA #1, Circ @ 0.75bpm, maintaining 400psi WHP & taking gassy returns to tiger tank. Wt check @ 10700' _> Up - 42k, Run-in - 17k. Continue RIH & tag WS fps 11406'. Correct CTD to 11385' (ELMD). PUH to 11375' & flag CT. Conduct injectiviry test - 3.65bpm @ 3050psi CTP & 2650psi WHP. Continue injecting 2% KCL ~ 2.35bpm & 2850psi WHP. Printed: 7/10/2006 7:22:47 AM BP EXPLORATION Page 2 of 8 Operations Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: REENTER+COMPLETE Start: 6/20/2006 End: Contractor Name: NORDIC CALISTA Rig Release: 7/6/2006 Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours Task Code ~ NPT ~ Phase I -_-__ i ___ __. ____ 7/2/2006 04:30 - 05:15 0.75 ZONISO P WEXIT 05:15 - 05:30 0.25 ZONISO P WEXIT 05:30 - 06:30 1.001 ZONISO P IWEXIT 06:30 - 07:20 0.831 ZONISO ~ P IWEXIT 07:20 - 10:00 I 2.671 ZONISO C P I IWEXIT 10:00 - 10:30 0.50 ZONISO P WEXIT 10:30 - 10:50 0.33 STWHIP P WEXIT 10:50-13:30 I 2.671STWHIPIP I IWEXIT 13:30- 14:30 1.001 STWHIP~P IWEXIT 14:30 - 16:30 2.00 STWHIP~P WEXIT 16:30 - 18:30 2.00 STWHIP P WEXIT 18:30-21:00 I 2.501STWHIPIP I IWEXIT 21:00-21:301 0.501STWHIPIP I IWEXIT 21:30-22:151 0.751STWHIPIP ! IWEXIT 22:15 - 23:00 I 0.751 STWHIPI P I IWEXIT 23:00 - 00:00 I 1.001 STWHIPI P I IWEXIT 7/3/2006 100:00 - 01:00 I 1.001 STWHIPI P I IWEXIT Description of Operations Meanwhile RU SLB Cementers. PJSM with all personnel concerning cementing operations. Meanwhile continue injecting 2% KCL ~ 2.05bpm & 2600psi WHP to liquid pack wellbore. Prime up. Flush/PT lines to 4k. Pump 5bbls of water ahead. Mix & pump 22.5bbls 15.8ppg class 'G' cmt slurry & 5bbls of water behind C~? 2.5bpm/2050psi & 1650psi WHP. Chase cement with KCL water C~ 2.50bpm/2200psi & 1850psi WHP. Shut-in choke ~ 50bbls away. Bullhead 6.5bbls of cmt away C~3 2.34bpm from 2000psi WHP to squeeze pressure of 3000psi. Open up choke to 2000psi WHP. Lay-in remaining 16bbls cmt 1:1 to TOC @ 10920'. POOH to safety @ 10000'. Hold 2000 psi Sqz Press for 30 min. Circ. 2# Biozan to nozzle. RIH to top of Cmt at 10920'. Clean out Cmt in 7" liner with Biozan at 2.8 bpm, RIH at 40 FPM. Clean out liner to flag at 11,375'. Pull slow while chasing CMT to surface. Circ. at 3.0 bpm, Jet stack with swizzle stick. M/U BOT left hand 3.80" milling BHA to mill out "XN" Nipple in tailpipe. OAL = 17.06'. RIH with BHA #2, BOT 3.80" left hand Diamond milling BHA. 41.5K up wt at 10700'. RIH and tag XN at 10805', no pump. Pick up and ease down with 2.5 bpm. Mill XN nipple at 10,804.8', 2.5 bpm, 1250 psi. Mill with minimum WOB. Milled thru with 2 stalls. RIH 5 ft. Backream XN Nipple. Ream down clean. Backream clean. RIH clean with no pump. XN is milled out to 3.80". POH with LH milling BHA. Lay out LH milling BHA. Barabolic 3.80" Mill gauged at 3.80" GO / 3.79" NO-GO. Cut off LH CTC. M/U BOT RH CTC and pull /Press test. M/U 3.80" BOT window milling BHA with 3.80" mill, 3.80" string reamer and straight motor. OAL = 84.71'. RIH window milling BHA #3. Wt check C~ 10700' _> Up - 40k, Run-in - 17k. Continue RIH & dry tag WS @ 11404'. PUH & establish freespin ~ 2.5bpm/1250psi. Ease in hole with pumps on & stall @ 11403.7'. P/U with 10k O/pull. Ease in & stall again. P/U with 5k O/pull -suspect we're ~ WS/Lnr pinch pt. Flag pipe & correct depth to 11389.6' (pinch pt ELMD). Mill window from 11389.6' to 11390' with 2.5/2.5bpm, 1250/1300psi, 1k WOB & lfph ave ROP. Mill to 11391' with 2.5/2.5bpm, 1250/1420psi, 1 k WOB & 1.5fph ave ROP. Mill to 11392' with 2.5/2.5bpm, 1250/1480psi, 1.5k WOB & 1.5fph ave ROP. Mill to 11393' with 2.5/2.5bpm, 1250/1550psi, 2k WOB & lfph ave ROP. Mill to 11394' with 2.5/2.5bpm, 1250/1550psi, 2.5k WOB & lfph ave ROP. Getting cement & metal shavings on the shaker. Printed: 7/10/2006 7:22:47 AM BP EXPLORATION Operations Summary Report Page 3 of 8 Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: REENTER+COMPLETE Start: 6/20/2006 End: Contractor Name: NORDIC CALISTA Rig Release: 7/6/2006 Rig Name: NORDIC 1 Rig Number: N1 Date i From - To Hours Task 'Code NPT Phase Description of Operations i _t___ _ _ - - __ __ 7/3/2006 01:00 - 02:00 1.00 STWHIP P WEXIT Mill to 11395' with 2.5/2.5bpm, 1250/1580psi, 2.5k WOB & lfph ave ROP. 02:00 - 02:40 0.67 STWHIP P WEXIT Mill to 11396' with 2.5/2.5bpm, 1250/1580psi, 2.5k WOB & 1.5fph ave ROP. 02:40 - 03:40 1.00 STWHIP P WEXIT Control mill to 11397.5' with 2.5/2.5bpm, 1250/1460psi, ik 03:40 - 04:40 1.00 STWHIP P 04:40 - 05:20 0.67 STWHIP P 05:20 - 07:15 1.92 STWHIP P 07:15 - 09:15 2.00 STWHIP P 09:15 - 09:45 0.50 DRILL P 09:45 - 11:40 1.92 DRILL P 11:40 - 13:45 2.08 DRILL P 13:45 - 14:10 0.42 DRILL P 14:10 - 14:20 0.17 DRILL P 14:20 - 16:00 1.67 DRILL P 16:00 - 17:45 1.75 DRILL P 17:45 - 17:55 0.17 DRILL P 17:55 - 18:30 0.58 DRILL P 18:30 - 19:15 7/4/2006 19:15 - 19:35 19:35 - 22:10 22:10 - 23:20 23:20 - 00:00 00:00 - 00:30 0.751 DRILL I P 0.33 DRILL P 2.58 DRILL P 1.17 DRILL P 0.67 DRILL P 0.50 DRILL P WOB & 1.5fph ave ROP. Have milled a total of 7.9' & should be in formation by now. WEXIT Mill 10' formation to 11408' with 2.5/2.5bpm, 1250/1490psi, 10fph ave ROP & 2k WOB. WEXIT Swap wellbore to 8.6 ppg reconditioned flopro mud with 12ppb K-G & 3% L-T. Meanwhile backream/dress window/rat hole 3x & drift 2x. Window looks clean. Tentative window depths are: TOWS = 11385', TOW = 11389.6', RA PIP Tag = 11395'. BOW = 11397.5'. WEXIT Paint EOP flag ~ 10900' & POOH window milling BHA#3. WEXIT Lay out milling BHA. Window mill gauged at 3.80" Go /3.79" No-Go. Cut off 50' of coil for Chrome tubing maintenance.- M/U SWS CTC. Pull /Press test. PROD1 PRE-SPUD MEETING. Reviewed well drilling and completion procedure, hazards and mitigation with all crew members. PROD1 M/U LATERAL RES/MWD BHA #4 with DS49 TREX Bit #3 and 1.8 deg Extreme motor. upload Sperry RES tool. OAL = 87.05'. PROD1 RIH with MWD /RES Lateral BHA #4. SHT tools at 3100'. OK. RIH to flag. Correct -10' at flag. RIH to 11350'. PROD1 Orient TF to 10L. PROD1 RIH clean thru window. Tag bottom at 11,412' and correct depth to 11,408'. PROD1 Drilled Z3 Lateral. 2.5 / 2.5 bpm, 2700-3000 psi, 30L, 61 deg incl, 45 fph. Drilled to 11,463'. PROD1 Drilled Z3 Lateral. 2.5 / 2.5 bpm, 2800-3000 psi, 40L, 71 deg incl, 35 fph. Drilled to 11,514'. PROD1 Wiper trip to window. Clean hole. PROD1 Log GR tie-in of RA tag to original openhole. Log down. Added 1 ft to CTD. RIH. PROD1 Drilled Z3 Lateral. 2.5 / 2.5 bpm, 2800-3000 psi, 45L, 71 deg incl, 40 fph. Drilled to 11,541'. 41 N came in ~ 8835'sstvd. Plan to soft land C 8855'sstvd with 85degs incl. PROD1 Orient TF around to 90L. Up wt = 32k, S/O wt = 15k, PVT = 309bb1s, IAP = 44psi & OAP = 45psi. PROD1 Drill to 11611' with 75-85L TF, 2.55/2.55bpm, 2800/3450psi, 6k WOB & 30fph ave ROP. PRODi Orient 1 click & drill to 11630' with 70-85L TF, 2.55/2.55bpm, 2800/3450psi, 6k WOB & 15fph ave ROP. PRODi Drill to 11657' with 75-90L TF, 2.55/2.55bpm, 2800/3450psi, 6k WOB & 45fph ave ROP. PROD1 Orient TF around to 90R. Printed: 7/10/2006 7:22:47 AM BP EXPLORATION Page 4 of 8 Operations Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Event Name: REENTER+COMPLETE Contractor Name: NORDIC CALISTA Rig Name: NORDIC 1 Date ;From - To Hours Task Code NPT - _ __ 7/4/2006 100:30 - 01:10 0.67 ~ DRILL P 01:10 - 01:45 I 0.581 DRILL I P 01:45 - 02:00 0.25 DRILL P 02:00 - 02:35 0.58 DRILL P 02:35 - 03:45 I 1.171 DRILL I P 03:45 - 04:45 I 1.001 DRILL I P 04:45 - 05:30 0.75 DRILL P 05:30 - 05:45 0.25 DRILL P 05:45 - 06:00 0.25 DRILL P 06:00 - 06:50 0.83 DRILL P 06:50.-07:10 0.33 DRILL P 07:10. - 07:20 0.17 DRILL P 07:20 - 07:40 0.33 DRILL P 07:40 - 08:30 0.83 DRILL P 08:30 - 09:30 1.00 DRILL P 09:30 - 10:45 1.25 DRILL P 10:45 - 12:00 1.25 DRILL P 12:00 - 12:30 0.50 DRILL P 12:30 - 13:40 1.17 DRILL P 13:40 - 14:20 0.67 DRILL P 14:20 - 17:00 2.67 DRILL P 17:00 - 18:10 I 1.171 DRILL I P 18:10 - 19:05 0.921 DRILL P 19:05 - 20:25 1.331 DRILL I P 20:25 - 21:00 0.58 DRILL P 21:00 - 21:25 0.42 DRILL P 21:25 - 22:00 0.58 DRILL P 22:00 - 00:00 2.001 DRILL P 7/5/2006 00:00 - 00:15 0.25 DRILL P 00:15 - 02:00 1.75 DRILL P 02:00 - 02:15 0.25 CASE P Spud Date: 5/13/1989 Start: 6/20/2006 End: Rig Release: 7/6/2006 Rig Number: N1 Phase ~ Description of Operations PROD1 Drill to 11682' with 85-95R TF, 2.55/2.55bpm, 2800/3300psi, 6k WOB & 45fph ave ROP. PROD1 Drill to 11700' with 115-95R TF, 2.55/2.55bpm, 2800/3125psi, 6k WOB & 25fph ave ROP. PROD1 Wiper trip clean to window. RBIH clean to btm. PROD1 Drill to 11717' with 120R TF, 2.55/2.55bpm, 2800/3125psi, 6k WOB & 35fph ave ROP. PROD1 Orient 1 click & drill to 11751' with 140-155R TF, 2.55/2.55bpm, 2800/3450psi, 12k WOB & 15fph ave ROP. Stacking wt in the 41 N & getting bad G-Totals. PROD1 Orient TF around to 90R -not getting clicks. Reorient again & shoot off-btm surveys. PROD1 Orient & drill to 11772' with 100R TF, 2.35/2.35bpm, 2250/3400psi, 3k WOB & 60fph ave ROP. Reduce pump rates due to bad G-Totals. PROD1 Shoot off-btm surveys. PROD1 Orient TF to 60L. PROD1 Drill Z4 lateral, 2.6 bpm, 3000-3600 psi, 10L, Stacking wt. Drilled to 11,799'. PROD1 Wiper trip to window. Clean hole. PROD1 Log GR tie-in at RA tag at 11,395'. Added 3' CTD. PRODt RIH and tag bottom at 11802'. PROD1 Orient around. Pull up to window to get clicks. PROD1 Drill Z4 lateral, 2.6 bpm, 3000-3600 psi, 90L, Drilled to 11835'. PROD1 Orient around again. PROD1 Drill Z4 lateral, 2.6 bpm, 3000-3600 psi, 90L, 84 deg incl. Drilled to 11,935'. PROD1 Orient TF to 120R. PROD1 Drill Z4, 2.6 bpm, 3000-3600 psi, 120R, 80 deg incl. Drilled to 12004'. PRODi Wiper trip to window. Clean hole. RIH. PROD1 Drill Z3, Top of Z3 at 12,005'. 2.6 bpm, 3000-3600 psi, 120R, 65 deg incl. Drilled to 12,100 PROD1 Drill Z3, Top of Z3 at 12,005'. 2.6 bpm, 3000-3600 psi, 120R, 55 deg incl. Drilled to 12,151'. PROD1 Wiper trip to window. Clean hole. RIH. Up wt = 34k, S/O wt = 14k. PVT = 320bb1s. IAP = 50psi & OAP = 60psi. PROD1 Orient & drill to TD ~ 12215' (end of polygon) with 120-150R TF, 2.6/2.6bpm, 2950/3300psi, 3k WOB & 50fph ave ROP. PROD1 Wiper trip clean to window. PROD1 Log up GR & tie-into RA PIP tag. Add 5' to CTD. PROD1 RBIH & set down in shale @ 11683'-11700'. P/U & ream/backream area clean 2x. Continue RIH to btm. PROD1 POOH drilling BHA while laying in liner pill in OH. Paint EOP flags C 10600' & 9800'. PROD1 Continue POOH drilling BHA to surface. PROD1 OOH. PJSM. S/B injector. Attempt to download resistivity without luck. Troubleshoot connections and finally was able to download data. UD BHA. Bit grade - 5/3/1 with broken cutters on the face. RUNPRD R/U for running completion liner. Printed: 7/10/2006 7:22:47 AM BP EXPLORATION Page 5 of 8 Operations Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Event Name: REENTER+COMPLETE Contractor Name: NORDIC CALISTA Rig Name: NORDIC 1 Date;, From - To ~ Hours ~ Task Code' NPT 7/5/2006 02:15 - 02:30 0.25 CASE P 02:30 - 03:00 0.50 CASE P 03:00 - 03:45 I 0.751 CASE I P 03:45 - 06:30 I 2.75 I CASE I P 06:30 - 09:00 I 2.501 CASE I P 09:00 - 09:30 0.501 CASE P 09:30 - 12:00 I 2.501 CASE I P 12:00 - 12:15 I 0.251 CEMT I P 12:15 - 12:50 I 0.581 CEMT I P 12:50 - 13:40 ~ 0.831 CEMT ~ P Spud Date: 5/13/1989 Start: 6/20/2006 End: Rig Release: 7/6/2006 Rig Number: N1 i Phase ! Description of Operations RUNPRD Held PJSM on M/U &RIH with liner. RUNPRD Pull off SLB CTC. Install Baker CTC. Pull test to 35k & pressure test to 3500psi _ OK. RUNPRD Install dart catcher. Load wiper dart. Launch & chase with mud. Dart hit @ 51.9bbls. RUNPRD M/U 2-7/8" STL rotating guide shoe, 1 float collar, 1 Chrome shoe jt, 1 float collar & landing collar. M/U 28jts of 2-7/8" STL 6.16# 13CR85 & Chrome 3-1/2" x 2-7/8" X/Over. M/U 20jts of 3-1/2" 8.81# 13CR80 STL liner & 3-1/2" pups. M/U Baker Deployment sleeve & CTLRT. OAL - 1501.81'. RUNPRD RIH with 2-7/8" x 3-1/2" Chrome liner. Circ. 0.1 bpm while RIH. Correct to flag at 11,302', -14' CTD. RIH. Up Wt = 40k. RIH thru window. Sat down at bottom of window at 11398' several times. Inc. pump to 3 bpm, set down, pick up and went thru window OK. Set down in Shales at 11650' and 11700'. Work thru OK. RIH at 40 fpm, Circ. 0.3 bpm. Full returns. On depth at flag at 12,102'. RIH. 15K dwn wt. Land liner at TD at 12,221' CTD. Up wt = 50K. Land again at 12,221' CTD. Liner is landed at corrected depth of 12,220'. RUNPRD Insert 5/8" AL ball. Displace with FloPro at 2.8 bpm, 2800 psi. Coil capacity = 51.9 bbls. Slow rate at 39 bbls to 0.7 bpm at 1200 psi. Ball on seat at 47.7 BBLS. Sheared at 4100 psi. Pulled free from liner at 32K. Stack wt. RUNPRD Circ. well to 2% KCL water. Recover FloPro. Clean and fill rig pits. Build 32 bbl, 2# Biozan pill. Circ. KCL water at 2.9 bpm / 2.9 bpm returns, 1100 psi. RUNPRD SAFETY MEETING. Review procedure, hazards and mitigation for pumping cement. RUNPRD Batch mix cement. At wt. at 12:45 hrs. Press test cement line. RUNPRD Stage 13.1 bbl, 15.8 ppg, G Cement. 2.0 bpm, 1100 psi. Stop pump. Clear cement line. Insert Dart. Biozan behind dart. Displace dart with Biozan. Stage 2# Biozan. 10 bbl displ, 2.9 / 2.9 bpm, 1300 psi, 20 bbl displ, 2.9 / 2.9 bpm, 1500 psi, 31 bbl displ, 2.9 / 2.9 bpm, 1700 psi, Swap to KCL water. 40 bbl displ, 3.0 / 3.0 bpm, 1950 psi 47 bbl displ, 3.0 / 3.0 bpm, 1500 psi, slow to 2.0 bpm. 50 bbl displ, 2.0 / 2.0 bpm, 725 psi 51.9 bbl displ, Dart on LW P, LW P sheared at 3000 psi. 55 bbl displ, 3.0 / 2.8 bpm, slow pump to 2.5 bpm, partial returns. 58 bbl, 2.5 / 2.5 bpm, 1750 60 bbl, 2.5 / 2.5 bpm, 1400 psi, slow pump to 1.0 bpm 61 bbl displ, 1.0 bpm, 500 psi. 61.8 bbl displ, 500 psi, Bumped LW P. Press up to 2000 psi. Cement returns around shoe = 12.2 bbls. Lost 0.8 bbls to Printed: 7/10/2006 7:22:47 AM BP EXPLORATION Operations Summary Report Page 6 of 8 Legal Well Common W Event Nam Contractor Rig Name: Date ~ Name: Z ell Name: Z e: Name: From - To -26 -26 REENTE NORDIC NORDIC Hours R+COM CALIS 1 Task PLET TA Code ~ E NPT Start Rig Rig Phase Spud Date: 5/13/1989 : 6/20/2006 End: Release: 7/6/2006 Number: N1 Description of Operations 7/5/2006 12:50 - 13:40 0.83 CEMT P RUNPRD formation. Check floats. OK. Sting out of liner. Cement job went very well. Full returns at end. 13:40 - 15:30 1.83 CEMT P RUNPRD POH with coil, pump to replace coil voidage only. 0.8 bpm, 200 psi. 15:30 - 16:00 0.50 CEMT P RUNPRD UO BOT CTLRT. Recover 100% BHA. 16:00 - 16:15 0.25 EVAL P LOW ER1 SAFETY MEETING. Review procedure, hazards and mitigation for M/U SWS MCNUGR logging tools. 16:15 - 17:45 1.50 EVAL P LOWERI P/U logging/cleanout BHA #6 with 2.30" D331 mill, 2-1/8" straight motor, XO, 2jts of 1-1/4" CSH tbg, MCNUCCUGR logging tool carrier, XO, lower MHA, 15stds of 1-1/4" CSH tbg. 17:45 - 18:15 0.50 EVAL N RREP LOW ER1 Rig drawworks quit at 1745 hrs. Troubleshoot drawworks & rectify problem. 18:15 - 19:15 1.00 EVAL P LOWERI Continue M/U remaining 10 stds of 1-1/4" CSH tbg, XO & upper MHA. M/U Injector. OAL = 1653.33'. 19:15 - 21:00 1.75 EVAL P LOWERi RIH with logging/cleanout BHA #6 to 10500'. Cement ~ 500psi compressive strength. 21:00 - 22:00 1.00 EVAL P LOW ERi Cleanout wellbore C~3 1.5bpm & log down MCNUCCUGR C~ 30fpm from 10500'. Reciprocate 2x across X/Over sub C~ 1.5bpm. Log down to PBTD tagged 2x ~ 12195'. Cement ~ 1000psi compressive strength. 22:00 - 22:30 0.50 EVAL P LOWERI Log up @ 60fpm from PBTD to 10500' while laying-in 150kcps pert pill in liner. 22:30 - 23:00 0.50 EVAL P LOW ER1 Getting gas to surface. Park ~ 10500' &circ btms up till returns clean out. 23:00 - 00:00 1.00 EVAL P LOWERI POOH logging/cleanout BHA #6. 7/6/2006 00:00 - 00:40 0.67 EVAL P LOW ER1 Continue POOH logging/cleanout BHA #6 to surface. Cement 2700psi compressive strength. 00:40 - 01:00 0.33 EVAL P LOW ER1 OOH. S/B injector. UD upper MHA. Drop 5/8" ball & open up circ sub. B/D CSH with air. RU for R/B 1-1/4" CSH. One die on dog-collar popped loose & fell inside hole via side of slips. Inspect dog collar & observe the die retainer row-pin broken. Missing die is 2-5/8" long, 7/8" wide with a tapered thickness of 7/8" to 3/8". Repair dog collar & replace die & retainer pin. 01:00 - 01:15 0.25 EVAL P LOW ER1 PJSM for UD & R/B CSH. 01:15 - 02:00 0.75 EVAL P LOWERI R/B 25 stands of 1-1/4" CSH. 02:00 - 02:15 0.25 EVAL P LOW ER1 PJSM for UD &MCNUCCUGR 02:15 - 02:45 0.50 EVAL P LOWERI UD lower MHA, SWS MCNUCCUGR logging tool, X/Os, 2 jts of 1-1/4" CSH, motor & mill. Check log data quality - OK. 02:45 - 03:00 0.25 EVAL P LOW ER1 Cycle BOP rams to flush out missing die in case it's lodged in the BOP ram cavities. 03:00 - 03:45 0.75 EVAL P LOWERI Cement > 2000psi compressive strength. Isolate CT. Line up & P/test wellbore for as follows: Time WHP CTP IAP OAP Onset 0 0 42 50 0 2030 0 42 50 10 1990 0 42 50 20 1960 0 42 50 30 1940 0 42 50 Passed test: Leaked 4.4% of test pressure in 30 mins => Will not set LTP. 03:45 - 04:15 0.50 PERFO P LOW ER1 Load pert guns into pipe shed. R/U safety jt & prep to M/U perf guns. Meanwhile download CNL data. From log data, PBTD = Printed: 7/10/2006 7:22:47 AM BP EXPLORATION Operations Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Event Name: REENTER+COMPLETE Contractor Name: NORDIC CALISTA Rig Name: NORDIC 1 Date From - To Hours ~ Task ~ Code NPT Start: 6/20/2006 Rig Release: 7/6/2006 Rig Number: N1 Page 7 of 8 Spud Date: 5/13/1989 End: Phase Description of Operations 7/6/2006 03:45 - 04:15 0.50 PERFO P LOW ER1 12186' & TOL = 10724'. 04:15 - 04:30 0.25 PERFO N DPRB LOWERI Use 2-7/8" Inr pup to simulate possibility of missing die wedging pert gun bullnose & observe that it is not possible. Review situation with ANC DE & decide to RIH perf guns as we should be able to push missing die to PBTD. 04:30 - 04:45 0.25 PERFO P LOW ER1 PJSM on perforation job. Fax CNL log to ANG Geo. ANC Geo OKs preliminary pert picks. 04:45 - 05:30 0.75 PERFO P LOW ER1 M/U 20jts of 2" HSD 6spf 2006PJ guns & blanks with CBF firing system. 05:30 - 06:00 0.50 PERFO P LOWERI M/U lower diconnect, 19 doubles of 1-1/4" CSH tbg & upper MHA, OAL - 1615.1'. M/U injector. 06:00 - 08:45 2.75 PERFO P LOWERI RIH with perforating BHA#7 circ perf pill ahead ~ min rate. Pick-up clean below each GLM while RIH. Ease into top of 3-1/2" liner at 10,727', no set down wt. RIH to 10,800'. Up wt. = 34.5K, Dwn Wt = 18.5K, RIH to 3-1/2" x 2-7/8" XO, no wt loss at XO. RIH to PBTD of 12,186'. Tag bottom at 12,192 ft. Correct -6' to 12,186'. Pick up clean off bottom. 08:45 - 09:15 0.50 PERFO P LOW ER1 Pump 10 bbls new FloPro, 150,000 cp perf pill. Insert 5/8" AL and displace with 7 bbls new FloPro. Chase with KCL water. Position bottom shot at 12,117' and displace 40 bbls at 2.6 bpm, 2700 psi. Slow pump to 1.4 bpm, 600 psi at 40 bbls. Ball on seat at 49 bbls. Pull coil and fire on the fly and on depth with bottom shot at 12,113'. Firing head sheared at 2700 psi. No overpull, continue to POH at 35 fpm, circ at 1 bpm, Up wt = 37.5K. 09:15 - 11:30 2.25 PERFO P LOWERi POH clean, while circ at 1 bpm, Flow check at top of liner. No flow. Continue to POH. Flow check at surface. No flow. 11:30 - 12:15 0.75 PERFO P LOWERI Stand back CSH workstring. 12:15 - 12:30 0.25 PERFO P LOWERI SAFETY MEETING. Review procedure, hazards and mitigation for laying out fired perf guns. 12:30 - 14:15 1.75 PERFO P LOW ER1 Lay out fired perf guns. All shots fired. PERFORATED INTERVALS. 11,710 - 11,800' 12,050 - 12,065' 12,087 - 12,113' Total of 131' shot at 6spf 14:15 - 15:45 1.50 WHSUR P POST RIH with nozzle to 2250' and freeze protect 4-1/2" tubing to surface. POH to 200' and circ. MEOH to surface. Close Master and Swab valves. 15:45 - 16:00 0.25 RIGD P POST SAFETY MEETING. Review procedure, hazards and mitigation for pumping N2. 16:00 - 17:00 1.00 RIGD P POST Displace coil to N2. Bleed off pressure to tiger tank. 17:00 - 18:45 1.75 RIGD P POST Cut off CTC. Install internal connecter and pull CT stub to reel. Secure coil on reel. 18:45 - 19:00 0.25 RIGD P POST PJSM for ND BOPE. Printed: 7!10/2006 7:22:47 AM Printed: 7/10/2006 7:22:47 AM Halliburton Company Survey Report Company: BP Amoco Date: 7/1 312 0 0 6 Time: 16:26:27 Page: 1 Field: Prudhoe Bay Co -ordinate(NEpReference: Well: Z-26, True North i Site: PB Z Pad Ve rtical (TVD) Re ference: 35:26 5/13/1989 00:00 89.5 Well: Z-26 Section (VS) Refer ence: Well (O.OON,OA OE,45.OOAzi} Wellpath: Z-26A Survey Calculation Method: Minimum Curva ture Db: Oracle --- - Field: Prudhoe Bay __ -- North Slope UNITED STATES Map System:US State Pl ane Coordin ate System 1927 Map Zone: Alaska, Zone 4 Geo Datum: NAD27 (Clarke 1866) Coordinate System: Well Centre Sys Datum: Mean Sea Level Geomagnetic Model: bggm2005 Well: Z-26 Slot Name: Z-26 Well Position: +N!-S 2153.28 ft Northing: 5959359.99 ft Latitude: 70 17 54.226 N +E/-W -1712.07 ft Fasti ng : 599564.04 ft Longitude: 149 11 37.273 W Position Uncertainty: 0.00 ft Wellpath: Z-26A Drilled From: Z-26 Tie-on Depth: 11362.29 ft Current Datum: 35: 26 5/13/1989 00:00 Height 89.47 ft Above System Datum: Mean Sea Level Magnetic Data: 4/15/2006 Declination: 24.31 deg Field Strength: 57583 nT Mag Dip Angl e: 80.83 deg Vertical Section: Depth From (TVD) +N/-S +E/-W Direcfion ft ft ft deg 35.47 0.00 0.00 45.00 Survey Program for Definitive Wellpath Date: 4/15/2006 Validated: Yes Version: 2 Actual From To Survey Toolcode Tool Name ft ft 38.40 11362.29 1 : Schlumberger GCT multishot GCT-MS Schlumberger GCT multishot 11385.00 12220.00 MWD (11385.00-12220.00) MWD MWD -Standard Survey MD Incl Azim TVD Sys TVD N/S E/W MapN MapE Tool ft deg deg ft ft ft ft ft ft 35.47 0.00 0.00 35.47 -54.00 0.00 0.00 5959359.99 599564.04 TIE LINE 38.40 0.20 211.44 38.40 -51.07 0.00 0.00 5959359.99 599564.04 GCT-MS 46.75 0.40 187.28 46.75 -42.72 -0.05 -0.01 5959359.94 599564.03 GCT-MS 55.80 0.50 182.55 55.80 -33.67 -0.12 -0.02 5959359.87 599564.02 GCT-MS 68.00 0.50 182.57 68.00 -21.47 -0.22 -0.02 5959359.77 599564.02 GCT-MS 82.60 0.48 181.35 82.60 -6.87 -0.35 -0.03 5959359.64 599564.02 GCT-MS 100.40 0.45 179,00 100.40 10.93 -0.49 -0.03 5959359.50 599564.02 GCT-MS 118.50 0.43 177.68 118.50 29.03 -0.63 -0.03 5959359.36 599564.02 GCT-MS 136.35 0.42 176.88 136.35 46.88 -0.76 -0.02 5959359.23 599564.03 GCT-MS 153.45 0.38 175.57 153.45 63.98 -0.88 -0.01 5959359.11 599564.04 GCT-MS 170.55 0.35 173.07 170.55 81.08 -0.99 0.00 5959359.00 599564.05 GCT-MS 187.65 0.35 171.13 187.65 98.18 -1.09 0.01 5959358.90 599564.07 GCT-MS 204.75 0.35 169.18 204.75 115.28 -1.20 0.03 5959358.79 599564.09 GCT-MS 221.75 0.35 166.31 221.75 132.28 -1.30 0.05 5959358.69 599564.11 GCT-MS 238.75 0.35 163.62 238.74 149.27 -1.40 0.08 5959358.59 599564.14 GCT-MS 255.75 0.32 161.63 255.74 166.27 -1.49 0.11 5959358.50 599564.17 GCT-MS 272.75 0.32 161.79 272.74 183.27 -1.58 0.14 5959358.41 599564.20 GCT-MS 289.65 0.32 163.40 289.64 200.17 -1.67 0.17 5959358.32 599564.23 GCT-MS 306.65 0.32 164.06 306.64 217.17 -1.77 0.19 5959358.23 599564.26 GCT-MS 323.55 0.30 162.46 323.54 234.07 -1.85 0.22 5959358.14 599564.29 GCT-MS 340.80 0.28 162.72 340.79 251.32 -1.94 0.25 5959358.06 599564.31 GCT-MS 358.80 0.30 165.30 358.79 269.32 -2.02 0.27 5959357.97 599564.34 GCT-MS 376.25 0.28 165.89 376.24 286.77 -2.11 0.29 5959357.89 599564.36 GCT-MS 393.75 0.27 165.64 393.74 304.27 -2.19 0.31 5959357.80 599564.38 GCT-MS 411.30 0.28 165.59 411.29 321.82 -2.27 0.34 5959357.72 599564.41 GCT-MS 428.90 0.30 166.03 428.89 339.42 -2.36 0.36 5959357.64 599564.43 GCT-MS 446.50 0.30 166.87 446.49 357.02 -2.45 0.38 5959357.55 599564.45 GCT-MS 464.10 0.32 166.90 464.09 374.62 -2.54 0.40 5959357.46 599564.47 GCT-MS 481.80 0.32 166.90 481.79 392.32 -2.64 0.42 5959357.36 599564.50 GCT-MS Halliburton Company • Survey Report -__ _- -- Company: BP Amoco Date: 7/13/2006 Tim e• 16:26:27 Page: 2 Field: Pru dhoe Bay Co-or dinatc(NE} Reference: Well: Z-26, True North Site: PB Z Pad Vertical (TVD) Reference: 35:26 5/13!198 9 00:00 89.5 Well: Z-2 6 Sectio n (VS) Reference: Well (O.OON,O.OOE,45.OOAzi) Wellpath: Z-2 6A Surve y Calculation Method: Minimum Curvature Db: Oracle Survcv - - --- IVtD Inc! Azim TVD Sys'1'VD N!S E!W MapN MapE Tool ft deg deg ft ft ft ft ft ft 499.45 0.32 168.17 499.44 409.97 -2.73 0.44 5959357.26 599564.52 GCT-MS 517.20 0.30 169.77 517.19 427.72 -2.83 0.46 5959357.17 599564.54 GCT-MS 534.90 0.32 170.23 534.89 445.42 -2.92 0.48 5959357.08 599564.56 GCT-MS 552.60 0.35 170.10 552.59 463.12 -3.02 0.50 5959356.97 599564.58 GCT-MS 570.25 0.37 170.87 570.24 480.77 -3.13 0.52 5959356.86 599564.60 GCT-MS 587.85 0.37 171.45 587.84 498.37 -3.25 0.53 5959356.75 599564.62 GCT-MS 605.50 0.38 171.88 605.49 516.02 -3.36 0.55 5959356.64 599564.63 GCT-MS 622.90 0.42 172.37 622.89 533.42 -3.48 0.57 5959356.52 599564.65 GCT-MS 640.20 0.42 172.97 640.19 550.72 -3.61 0.58 5959356.39 599564.67 GCT-MS 657.50 0.42 173.80 657.49 568.02 -3.73 0.60 5959356.27 599564.69 GCT-MS 674.80 0.43 175.09 674.79 585.32 -3.86 0.61 5959356.14 599564.70 GCT-MS 692.15 0.47 175.62 692.14 602.67 -4.00 0.62 5959356.00 599564.71 GCT-MS 709.40 0.50 175.57 709.39 619.92 -4.14 0.63 5959355.86 599564.73 GCT-MS 726.65 0.52 176.49 726.64 637.17 -4.29 0.64 5959355.71 599564.74 GCT-MS 743.85 0.55 177.91 743.83 654.36 -4.45 0.65 5959355.54 599564.75 GCT-MS 761.05 0.58 178.95 761.03 671.56 -4.62 0.65 5959355.38 599564.76 GCT-MS 778.25 0.62 179.49 778.23 688.76 -4.80 0.66 5959355.20 599564.76 GCT-MS 795.45 0.65 179.08 795.43 705.96 -4.99 0.66 5959355.00 599564.77 GCT-MS 812.75 0.65 178.87 812.73 723.26 -5.19 0.66 5959354.81 599564.77 GCT-MS 830.05 0.67 178.43 830.03 740.56 -5.39 0.67 5959354.61 599564.78 GCT-MS 847.30 0.70 177.29 847.28 757.81 -5.60 0.68 5959354.40 599564.79 GCT-MS 864.60 0.70 176.77 864.58 775.11 -5.81 0.69 5959354.19 599564.80 GCT-MS 881.85 0.72 175.81 881.83 792.36 -6.02 0.70 5959353.98 599564.82 GCT-MS 899.05 0.73 175.19 899.02 809.55 -6.24 0.72 5959353.76 599564.84 GCT-MS 916.25 0.73 175.16 916.22 826.75 -6.46 0.74 5959353.54 599564.86 GCT-MS 933.45 0.70 175.56 933.42 843.95 -6.67 0.75 5959353.33 599564.88 GCT-MS 950.70 0.68 176.07 950.67 861.20 -6.88 0.77 5959353.12 599564.90 GCT-MS 967.95 0.67 176.12 967.92 878.45 -7.08 0.78 5959352.92 599564.92 GCT-MS 985.20 0.67 175.60 985.17 895.70 -7.28 0.80 5959352.72 599564.93 GCT-MS 1002.45 0.67 174.95 1002.42 912.95 -7.48 0.81 5959352.52 599564.95 GCT-MS 1019.75 0.68 174.11 1019.72 930.25 -7.68 0.83 5959352.32 599564.97 GCT-MS 1037.10 0.70 173.61 1037.06 947.59 -7.89 0.86 5959352.11 599565.00 GCT-MS 1054.45 0.70 172.62 1054.41 964.94 -8.10 0.88 5959351.90 599565.03 GCT-MS 1071.75 0.70 170.71 1071.71 982.24 -8.31 0.91 5959351.69 599565.06 GCT-MS 1089.15 0.68 169.23 1089.11 999.64 -8.52 0.95 5959351.49 599565.10 GCT-MS 1106.45 0.67 167.15 1106.41 1016.94 -8.72 0.99 5959351.29 599565.14 GCT-MS 1123.75 0.62 165.55 1123.71 1034.24 -8.91 1.04 5959351.10 599565.19 GCT-MS 1141.05 0.60 166.03 1141.01 1051.54 -9.09 1.08 5959350.92 599565.24 GCT-MS 1158.35 0.57 167.19 1158.31 1068.84 -9.26 1.12 5959350.75 599565.28 GCT-MS 1175.55 0.53 168.39 1175.51 1086.04 -9.42 1.16 5959350.59 599565.32 GCT-MS 1192.75 0.48 169.72 1192.71 1103.24 -9.57 1.19 5959350.44 599565.35 GCT-MS 1210.05 0.43 173.46 1210.00 1120.53 -9.70 1.21 5959350.30 599565.37 GCT-MS 1227.25 0.40 178.26 1227.20 1137.73 -9.83 1.21 5959350.18 599565.38 GCT-MS 1244.50 0.35 182.09 1244.45 1154.98 -9.94 1.21 5959350.07 599565.39 GCT-MS 1261.80 0.27 185.04 1261.75 1172.28 -10.03 1.21 5959349.97 599565.38 GCT-MS 1279.05 0.17 181.50 1279.00 1189.53 -10.10 1.20 5959349.91 599565.38 GCT-MS 1296.35 0.08 165.66 1296.30 1206.83 -10.14 1.21 5959349.87 599565.38 GCT-MS 1313.65 0.05 97.18 1313.60 1224.13 -10.15 1.22 5959349.86 599565.39 GCT-MS 1330.25 0.05 33.82 1330.20 1240.73 -10.14 1.23 5959349.86 599565.40 GCT-MS 1347.55 0.08 9.56 1347.50 1258.03 -10.13 1.24 5959349.88 599565.41 GCT-MS 1364.85 0.08 337.32 1364.80 1275.33 -10.10 1.23 5959349.90 599565.41 GCT-MS 1382.10 0.10 312.07 1382.05 1292.58 -10.08 1.22 5959349.93 599565.39 GCT-MS Halliburton Company Survey Report Company: BP Amoco Date: ---_ 7/13/2006 Time: 16:26:27 Page: 3 ~ Field: Pru i dhoe Bay Co-ordinate(NE) Reference: Welf: Z-26, True North Site: PB Z Pad Vertical (TVD) Reference: 35:26 5/13/198 9 00:00 89.5 Well: Z-26 Sectio n (VS) Reference: Well (O.OON,O.OOE,45.OOAzi) Wetlpath: Z-26A Survey Calculati on Method: Minimum Curvature Db: Orade Su r~ e~ MD lncl Azim TVll Sys"I'VD K/S E/W MapN MapE Tool ft deg deg ft ft ft ft ft ft 1399.15 0.10 302.06 1399.10 1309.63 -10.06 1.19 5959349.94 599565.37 GCT-MS 1416.05 0.05 217.67 1416.00 1326.53 -10.06 1.18 5959349.94 599565.35 GCT-MS 1432.95 0.10 126.79 1432.90 1343.43 -10.08 1.18 5959349.93 599565.36 GCT-MS 1449.85 0.23 117.10 1449.80 1360.33 -10.10 .1.23 5959349.91 599565.40 GCT-MS 1466.85 0.35 115.04 1466.80 1377.33 -10.14 1.30 5959349.87 599565.48 GCT-MS 1483.90 0.47 114.44 1483.85 1394.38 -10.19 1.41 5959349.82 599565.59 GCT-MS 1501.00 0.53 114.84 1500.95 1411.48 -10.25 1.55 5959349.76 599565.72 GCT-MS 1518.05 0.57 118.51 1518.00 1428.53 -10.33 1.70 5959349.69 599565.87 GCT-MS 1535.15 0.58 121.94 1535.10 1445.63 -10.41 1.84 5959349.60 599566.02 GCT-MS 1552.30 0.62 122.66 1552.25 1462.78 -10.51 2.00 5959349.51 599566.17 GCT-MS 1569.40 0.60 124.46 1569.35 1479.88 -10.61 2.15 5959349.41 599566.33 GCT-MS 1586.50 0.53 127.30 1586.45 1496.98 -10.71 2.28 5959349.31 599566.47 GCT-MS 1603.65 0.47 128.77 1603.60 1514.13 -10.80 2.40 5959349.22 599566.58 GCT-MS 1620.75 0.35 131.82 1620.70 1531.23 -10.88 2.50 5959349.15 599566.68 GCT-MS 1637.75 0.18 154.37 1637.70 1548.23 -10.94 2.55 5959349.09 599566.73 GCT-MS 1654.75 0.08 187.72 1654.70 1565.23 -10.97 2.56 5959349.05 599566.74 GCT-MS 1671.75 0.07 221.32 1671.70 1582.23 -10.99 2.55 5959349.03 599566.73 GCT-MS 1688.70 0.12 274.19 1688.65 1599.18 -11.00 2.52 5959349.03 599566.71 GCT-MS 1705.75 0.32 312.38 1705.70 1616.23 -10.97 2.47 5959349.06 599566.65 GCT-MS 1722.70 0.52 315.68 1722.65 1633.18 -10.88 2.38 5959349.14 599566.56 GCT-MS 1739.70 0.58 312.48 1739.64 1650.17 -10.77 2.26 5959349.26 599566.45 GCT-MS 1756.70 0.57 310.73 1756.64 1667.17 -10.65 2.14 5959349.37 599566.32 GCT-MS 1773.75 0.58 310.42 1773.69 1684.22 -10.54 2.01 5959349.48 599566.19 GCT-MS 1790.75 0.62 309.99 1790.69 1701.22 -10.43 1.87 5959349.59 599566.05 GCT-MS 1807.75 0.65 309.64 1807.69 1718.22 -10.31 1.73 5959349.71 599565.90 GCT-MS 1824.75 0.68 308.75 1824.69 1735.22 -10.18 1.57 5959349.83 599565.75 GCT-MS 1841.75 0.72 307.80 1841.69 1752.22 -10.05 1.41 5959349.96 599565.58 GCT-MS 1858.75 0.72 307.79 1858.69 1769.22 -9.92 1.24 5959350.09 599565.41 GCT-MS 1875.80 0.72 309.46 1875.74 1786.27 -9.79 1.07 5959350.22 599565.24 GCT-MS 1892.80 0.72 310.70 1892.73 1803.26 -9.65 0.91 5959350.35 599565.08 GCT-MS 1909.40 0.68 311.18 1909.33 1819.86 -9.52 0.76 5959350.48 599564.92 GCT-MS 1925.90 0.63 312.16 1925.83 1836.36 -9.39 0.62 5959350.61 599564.78 GCT-MS 1942.85 0.55 313.20 1942.78 1853.31 -9.27 0.49 5959350.72 599564.65 GCT-MS 1959.85 0.43 314.05 1959.78 1870.31 -9.17 0.38 5959350.82 599564.54 GCT-MS 1976.85 0.32 312.38 1976.78 1887.31 -9.10 0.30 5959350.90 599564.46 GCT-MS 1993.85 0.23 307.18 1993.78 1904.31 -9.04 0.24 5959350.95 599564.40 GCT-MS 2010.95 0.17 301.00 2010.88 1921.41 -9.01 0.19 5959350.98 599564.35 GCT-MS 2028.00 0.13 295.21 2027.93 1938.46 -8.99 0.15 5959351.00 599564.31 GCT-MS 2045.15 0.07 281.25 2045.08 1955.61 -8.98 0.12 5959351.01 599564.28 GCT-MS 2062.20 0.03 243.67 2062.13 1972.66 -8.98 0.11 5959351.01 599564.27 GCT-MS 2079.35 0.02 198.42 2079.28 1989.81 -8.98 0.10 5959351.01 599564.26 GCT-MS 2096.45 0.00 196.62 2096.38 2006.91 -8.99 0.10 5959351.01 599564.26 GCT-MS 2113.55 0.02 226.40 2113.48 2024.01 -8.99 0.10 5959351.00 599564.26 GCT-MS 2130.65 0.03 245.04 2130.58 2041.11 -8.99 0.09 5959351.00 599564.25 GCT-MS 2147.70 0.03 259.66 2147.63 2058.16 -8.99 0.09 5959351.00 599564.24 GCT-MS 2164.70 0.05 262.87 2164.63 2075.16 -9.00 0.07 5959351.00 599564.23 GCT-MS 2181.45 0.10 256.98 2181.38 2091.91 -9.00 0.05 5959350.99 599564.21 GCT-MS 2198.25 0.13 254.88 2198.18 2108.71 -9.01 0.02 5959350.98 599564.18 GCT-MS 2215.00 0.20 250.22 2214.93 2125.46 -9.02 -0.03 5959350.97 599564.13 GCT-MS 2231.75 0.28 245.53 2231.68 2142.21 -9.05 -0.09 5959350.94 599564.07 GCT-MS 2248.50 0.35 242.05 2248.43 2158.96 -9.09 -0.17 5959350.90 599563.99 GCT-MS 2265.20 0.40 237.85 2265.13 2175.66 -9.15 -0.27 5959350.84 599563.89 GCT-MS 2281.90 0.43 233.91 2281.83 2192.36 -9.21 -0.37 5959350.77 599563.79 GCT-MS ' ~ ~ Halliburton Company Survey Report ~ ! Company: BP Amoco Date: 7!13/2006 Tim e 16:26:27 Page: 4 Field: Pru dhoe Bay Co-ordinate(NE) Reference: Well: Z-26, True North Site: PB Z Pad Vertical (TVD) Reference: 35:26 5/13/198 9 00:00 89.5 Well: Z-2 6 Sectio n (VS) Reference: Well (0.OON,O.OOE,45.OOAzi) W'ellpath: Z-2 6A Survey Calculation Method: Minimum Curvature Db: Oracle Survey ~ MD Inc! Azim TVD Sys TVD N!S E/W dtapN MapE Tool ft deg deg ft ft ft ft ft ft 2298.60 0.47 231.30 2298.53 2209.06 -9.29 -0.47 5959350.69 599563.69 GCT-MS 2315.35 0.50 228.34 2315.28 2225.81 -9.39 -0.58 5959350.60 599563.58 GCT-MS 2332.05 0.53 224.50 2331.98 2242.51 -9.49 -0.69 5959350.49 599563.48 GCT-MS 2348.80 0.58 220.77 2348.73 2259.26 -9.61 -0.80 5959350.37 599563.37 GCT-MS 2365.50 0.63 218.13 2365.43 2275.96 -9.75 -0.91 5959350.23 599563.26 GCT-MS 2382.20 0.68 215.31 2382.12 2292.65 -9.90 -1.02 5959350.08 599563.15 GCT-MS 2398.90 0.75 213.12 2398.82 2309.35 -10.07 -1.14 5959349.91 599563.03 GCT-MS 2415.55 0.82 211.90 2415.47 2326.00 -10.26 -1.26 5959349.71 599562.91 GCT-MS 2432.20 0.88 210.74 2432.12 2342.65 -10.47 -1.39 5959349.50 599562.79 GCT-MS 2448.90 0.93 209.79 2448.82 2359.35 -10.70 -1.52 5959349.27 599562.66 GCT-MS 2465.60 0.97 208.73 2465.51 2376.04 -10.94 -1.66 5959349.03 599562.53 GCT-MS 2482.40 0.98 207.99 2482.31 2392.84 -11.20 -1.80 5959348.77 599562.39 GCT-MS 2499.10 1.02 207.31 2499.01 2409.54 -11.45 -1.93 5959348.51 599562.26 GCT-MS 2515.90 1.07 205.89 2515.81 2426.34 -11.73 -2.07 5959348.24 599562.13 GCT-MS 2532.80 1.10 204.69 2532.70 2443.23 -12.02 -2.20 5959347.95 599561.99 GCT-MS 2550.60 1.13 204.08 2550.50 2461.03 -12.33 -2.35 5959347.63 599561.86 GCT-MS 2568.35 1.17 203.98 2568.25 2478.78 -12.66 -2.49 5959347.30 599561.72 GCT-MS 2586.20 1.23 205.00 2586.09 2496.62 -13.00 -2.65 5959346.96 599561.56 GCT-MS 2604.10 1.28 205.27 2603.99 2514.52 -13.35 -2.81 5959346.60 599561.40 GCT-MS 2622.00 1.32 204.46 2621.88 2532.41 -13.72 -2.99 5959346.23 599561.24 GCT-MS 2640.10 1.32 202.90 2639.98 2550.51 -14.10 -3.15 5959345.85 599561.07 GCT-MS 2658.00 1.22 201.84 2657.88 2568.41 -14.47 -3.30 5959345.48 599560.93 GCT-MS 2676.10 1.05 203.38 2675.97 2586.50 -14.80 -3.44 5959345.15 599560.80 GCT-MS 2694.20 0.87 203.65 2694.07 2604.60 -15.08 -3.56 5959344.87 599560.68 GCT-MS 2711.50 0.58 187.39 2711.37 2621.90 -15.29 -3.63 5959344.66 599560.62 GCT-MS 2729.10 0.33 146.22 2728.97 2639.50 -15.42 -3.61 5959344.53 599560.64 GCT-MS 2747.15 0.23 96.45 2747.02 2657.55 -15.46 -3.54 5959344.48 599560.70 GCT-MS 2765.30 0.30 70.96 2765.17 2675.70 -15.45 -3.46 5959344.49 599560.78 GCT-MS 2783.40 0.53 73.03 2783.27 2693.80 -15.41 -3.34 5959344.54 599560.91 GCT-MS 2801.60 0.93 72.30 2801.46 2711.99 -15.34 -3.12 5959344.61 599561.13 GCT-MS 2819.70 1.52 64.46 2819.56 2730.09 -15.19 -2.76 5959344.76 599561.48 GCT-MS 2837.90 2.13 59.75 2837.75 2748.28 -14.92 -2.25 5959345.04 599561.99 GCT-MS 2856.10 2.57 56.69 2855.94 2766.47 -14.53 -1.62 5959345.45 599562.62 GCT-MS 2874.30 2.93 53.31 2874.11 2784.64 -14.02 -0.90 5959345.96 599563.32 GCT-MS 2892.50 3.32 50.26 2892.29 2802.82 -13.41 -0.13 5959346.58 599564.09 GCT-MS 2910.70 3.90 49.41 2910.45 2820.98 -12.67 0.75 5959347.33 599564.96 GCT-MS 2928.70 4.47 48.51 2928.40 2838.93 -11.81 1.74 5959348.21 599565.94 GCT-MS 2946.60 4.85 46.26 2946.24 2856.77 -10.82 2.81 5959349.21 599566.99 GCT-MS 2964.50 5.25 44.19 2964.07 2874.60 -9.71 3.93 5959350.33 599568.09 GCT-MS 2982.35 5.77 42.70 2981.84 2892.37 -8.47 5.10 5959351.59 599569.26 GCT-MS 3000.15 6.35 42.17 2999.54 2910.07 -7.08 6.37 5959353.00 599570.50 GCT-MS 3018.00 6.92 42.53 3017.27 2927.80 -5.55 7.76 5959354.54 599571.87 GCT-MS 3035.90 7.52 43.25 3035.03 2945.56 -3.91 9.29 5959356.21 599573.38 GCT-MS 3053.75 8.05 43.52 3052.72 2963.25 -2.15 10.95 5959357.99 599575.02 GCT-MS 3071.65 8.53 43.47 3070.43 2980.96 -0.28 12.73 5959359.88 599576.77 GCT-MS 3089.45 9.02 43.08 3088.02 2998.55 1.70 14.59 5959361.88 599578.61 GCT-MS 3107.35 9.43 42.12 3105.69 3016.22 3.81 16.53 5959364.02 599580.52 GCT-MS 3125.15 9.83 40.93 3123.24 3033.77 6.04 18.51 5959366.28 599582.46 GCT-MS 3143.00 10.33 39.42 3140.81 3051.34 8.43 20.52 5959368.69 599584.45 GCT-MS 3160.85 10.83 38.18 3158.36 3068.89 10.98 22.57 5959371.27 599586.47 GCT-MS 3181.60 11.43 37.48 3178.72 3089.25 14.15 25.03 5959374.47 599588.88 GCT-MS 3214.35 12.30 37.17 3210.77 3121.30 19.50 29.11 5959379.88 599592.89 GCT-MS Halliburton Company Survey Report Company: BP Amoco '. Field: Prudhoe Bay ~' Site: PB Z Pad WeA: Z-26 I Wellpath: Z-26A Survev MD lncl ft deg zim deg VD ft ys TVD ft Datr. 7!13/2006 Time: 16:26:27 Page: i Co-ordinate(1\E) Reference: Well: Z-26, True North Vertical (TVD) Reference: 35:26 5/13/1989 00:00 89.5 Section (VS) Reference: Well (O.OON,O.OOE,45.OOAzi) Survey Calculation Method: Minimum Curvature Dh: Oracle N/S E!W MapN MapE 7001 ~~ ft ft ft ft 3254.35 13.13 37.96 3249.79 3160.32 26.48 34.48 5959386.92 599598.16 GCT-MS 3294.80 13.88 38.99 3289.12 3199.65 33.87 40.36 5959394.39 599603.94 GCT-MS 3335.25 14.58 39.85 3328.33 3238.86 41.55 46.68 5959402.15 599610.16 GCT-MS 3375.80 15.38 40.69 3367.50 3278.03 49.55 53.45 5959410.24 599616.83 GCT-MS 3416.55 16.32 41.47 3406.70 3317.23 57.94 60.77 5959418.72 599624.03 GCT-MS 3457.25 17.27 42.31 3445.66 3356.19 66.69 68.62 5959427.58 599631.77 GCT-MS 3498.15 18.20 42.94 3484.62 3395.15 75.86 77.06 5959436.85 599640.08 GCT-MS 3539.05 19.23 43.37 3523.36 3433.89 85.43 86.04 5959446.54 599648.93 GCT-MS 3579.95 20.38 43.66 3561.84 3472.37 95.48 95.58 5959456.72 599658.34 GCT-MS 3620.85 21.57 43.71 3600.03 3510.56 106.06 105.69 5959467.44 599668.31 GCT-MS 3661.80 22.75 43.70 3637.95 3548.48 117.23 116.36 5959478.74 599678.83 GCT-MS 3702.05 23.85 43.66 3674.92 3585.45 128.74 127.36 5959490.40 599689.67 GCT-MS 3742.25 24.93 43.60 3711.53 3622.06 140.76 138.81 5959502.56 599700.96 GCT-MS 3782.45 26.13 43.56 3747.80 3658.33 153.31 150.75 5959515.27 599712.74 GCT-MS 3822.65 27.38 43.41 3783.70 3694.23 166.44 163.21 5959528.56 599725.01 GCT-MS 3862.95 28.73 43.17 3819.26 3729.79 180.24 176.20 5959542.53 599737.82 GCT-MS 3903.15 30.13 43.00 3854.27 3764.80 194.66 189.69 5959557.13 599751.12 GCT-MS 3943.45 31.50 43.01 3888.88 3799.41 209.76 203.78 5959572.41 599765.00 GCT-MS 3983.60 32.87 43.11 3922.86 3833.39 225.38 218.38 5959588.23 599779.39 GCT-MS 4023.75 34.08 42.88 3956.35 3866.88 241.58 233.48 5959604.62 599794.28 GCT-MS 4063.85 35.20 41.96 3989.34 3899.87 258.41 248.85 5959621.65 599809.42 GCT-MS 4104.10 36.50 40.97 4021.97 3932.50 276.08 264.46 5959639.52 599824.79 GCT-MS 4144.30 37.90 40.60 4053.99 3964.52 294.48 280.33 5959658.13 599840.42 GCT-MS 4184.45 39.20 40.15 4085.39 3995.92 313.54 296.54 5959677.40 599856.37 GCT-MS 4224.65 40.18 38.96 4116.32 4026.85 333.34 312.89 5959697.41 599872.45 GCT-MS 4264.85 40.95 38.01 4146.86 4057.39 353.80 329.15 5959718.09 599888.45 GCT-MS 4305.10 41.70 37.92 4177.09 4087.62 374.75 345.50 5959739.26 599904.52 GCT-MS 4345.45 42.35 38.08 4207.06 4117.59 396.04 362.13 5959760.76 599920.86 GCT-MS 4385.75 42.93 38.22 4236.71 4147.24 417.51 379.00 5959782.45 599937.44 GCT-MS 4425.50 43.30 38.35 4265.72 4176.25 438.83 395.83 5959803.99 599953.99 GCT-MS 4465.05 43.68 38.42 4294.42 4204.95 460.17 412.73 5959825.55 599970.60 GCT-MS 4504.60 44.33 38.45 4322.86 4233.39 481.69 429.81 5959847.29 599987.39 GCT-MS 4544.25 44.98 38.55 4351.07 4261.60 503.50 447.16 5959869.33 600004.45 GCT-MS 4583.75 45.50 38.77 4378.88 4289.41 525.40 464.68 5959891.45 600021.68 GCT-MS 4623.20 45.85 39.12 4406.45 4316.98 547.35 482.42 5959913.64 600039.12 GCT-MS 4662.70 46.25 39.33 4433.86 4344.39 569.38 500.40 5959935.90 600056.81 GCT-MS 4702.25 46.48 39.35 4461.15 4371.68 591.52 518.55 5959958.27 600074.66 GCT-MS 4741.85 46.50 39.37 4488.42 4398.95 613.72 536.76 5959980.72 600092.58 GCT-MS 4781.40 46.58 39.31 4515.62 4426.15 635.93 554.96 5960003.16 600110.48 GCT-MS 4820.90 46.80 39.22 4542.72 4453.25 658.18 573.15 5960025.65 600128.37 GCT-MS 4860.30 47.07 39.19 4569.62 4480.15 680.48 591.35 5960048.19 600146.27 GCT-MS 4899.80 47.28 39.13 4596.47 4507.00 702.95 609.64 5960070.89 600164.26 GCT-MS 4939.30 47.47 39.03 4623.22 4533.75 725.51 627.96 5960093.69 600182.28 GCT-MS 4978.80 47.77 38.93 4649.84 4560.37 748.19 646.32 5960116.61 600200.33 GCT-MS 5018.20 48.12 38.87 4676.24 4586.77 770.96 664.69 5960139.62 600218.40 GCT-MS 5057.70 48.35 38.91 4702.55 4613.08 793.89 683.19 5960162.79 600236.59 GCT-MS 5097.20 48.52 38.94 4728.75 4639.28 816.88 701.75 5960186.03 600254.85 GCT-MS 5136.40 48.75 38.96 4754.66 4665.19 839.76 720.25 5960209.15 600273.04 GCT-MS 5175.20 48.90 38.85 4780.20 4690.73 862.49 738.59 5960232.11 600291.07 GCT-MS 5214.00 49.12 38.68 4805.65 4716.18 885.33 756.93 5960255.19 600309.11 GCT-MS 5252.90 49.55 38.60 4831.00 4741.53 908.37 775.35 5960278.47 600327.22 GCT-MS 5291.60 49.67 38.63 4856.08 4766.61 931.40 793.75 5960301.75 600345.31 GCT-MS 5330.50 49.70 38.68 4881.25 4791.78 954.57 812.28 5960325.15 600363.53 GCT-MS ' ~ Halliburton Company Survey Report Company: BP Amoco llate: 7/13/2006 Time: 16.26 27 Page: 6 ~' Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Z-L6, True North ~I Site: PB Z Pad Vertical (TVD) Reference: 35:26 5/13/1989 00:00 89.5 Well: Z-26 Section (VS) Reference: Well (O.OON,O.OOE,45.OOAzi) ~ Wellpath: Z-26A Survey Calculation Method: Minimum Curvature Db: Oracle Sur~ev -_ - - - -- MD Incl Azim TVD Sys'fVD N/S E/W MapN M11apE lbol 1 ~ ft deg deg ft ft ft ft ft ft J 5369.30 49.93 38.63 4906.28 4816.81 977.72 830.79 5960348.54 600381.73 GCT-MS 5408.20 50.20 38.48 4931.25 4841.78 1001.04 849.38 5960372.11 600400.01 GCT-MS 5446.90 50.40 38.31 4955.97 4866.50 1024.38 867.87 5960395.68 600418.19 GCT-MS 5485.50 50.38 38.19 4980.58 4891.11 1047.73 886.28 5960419.28 600436.29 GCT-MS 5524.20 50.17 38.09 5005.32 4915.85 1071.14 904.67 5960442.93 600454.36 GCT-MS 5562.80 50.13 38.01 5030.05 4940.58 1094.48 922.93 5960466.50 600472.31 GCT-MS 5601.60 50.23 37.88 5054.90 4965.43 1117.98 941.26 5960490.24 600490.32 GCT-MS 5640.35 50.15 37.72 5079.71 4990.24 1141.50 959.50 5960514.00 600508.25 GCT-MS 5679.20 50.02 37.56 5104.64 5015.17 1165.09 977.70 5960537.83 600526.13 GCT-MS 5718.00 49.92 37.37 5129.59 5040.12 1188.68 995.77 5960561.65 600543.89 GCT-MS 5756.90 49.88 37.20 5154.65 5065.18 1212.35 1013.79 5960585.56 600561.60 GCT-MS 5795.70 49.78 37.01 5179.68 5090.21 1236.00 1031.68 5960609.43 600579.16 GCT-MS 5834.40 49.63 36.83 5204.70 5115.23 1259.59 1049.41 5960633.26 600596.58 GCT-MS 5872.70 49.58 36.70 5229.52 5140.05 1282.96 1066.87 5960656.86 600613.73 GCT-MS 5911.00 49.67 36.59 5254.33 5164.86 1306.37 1084.29 5960680.50 600630.83 GCT-MS 5949.30 49.57 36.52 5279.15 5189.68 1329.81 1101.66 5960704.16 600647.89 GCT-MS 5987.60 49.27 36.42 5304.06 5214.59 1353.20 1118.95 5960727.77 600664.87 GCT-MS 6025.80 49.15 36.33 5329.02 5239.55 1376.49 1136.11 5960751.28 600681.71 GCT-MS 6063.80 49.02 36.25 5353.91 5264.44 1399.63 1153.10 5960774.65 600698.40 GCT-MS 6101:70 48.85 36.09 5378.80 5289.33 1422.70 1169.97 5960797.94 600714.95 GCT-MS 6139.80 48.82 35.99 5403.88 5314.41 1445.89 1186.84 5960821.35 600731.52 GCT-MS 6177.90 48.82 35.92 5428.97 5339.50 1469.11 1203.68 5960844.78 600748.04 GCT-MS 6216.00 48.75 35.83 5454.07 5364.60 1492.33 1220.47 5960868.22 600764.53 GCT-MS 6254.20 48.60 35.69 5479.30 5389.83 1515.61 1237.24 5960891.72 600780.98 GCT-MS 6292.40 48.45 35.55 5504.59 5415.12 1538.87 1253.91 5960915.20 600797.34 GCT-MS 6330.60 48.22 35.48 5529.99 5440.52 1562.10 1270.49 5960938.65 600813.61 GCT-MS 6368.65 48.02 35.36 5555.39 5465.92 1585.19 1286.90 5960961.95 600829.72 GCT-MS 6406.75 47.92 35.25 5580.90 5491.43 1608.28 1303.26 5960985.26 600845.76 GCT-MS 6444.85 47.73 35.10 5606.48 5517.01 1631.36 1319.53 5961008.55 600861.72 GCT-MS 6483.05 47.50 34.94 5632.23 5542.76 1654.47 1335.72 5961031.86 600877.60 GCT-MS 6521.20 47.28 34.82 5658.06 5568.59 1677.50 1351.77 5961055.11 600893.35 GCT-MS 6558.80 47.08 34.65 5683.61 5594.14 1700.17 1367.49 5961077.98 600908.76 GCT-MS 6596.35 46.92 34.49 5709.22 5619.75 1722.78 1383.07 5961100.79 600924.04 GCT-MS 6633.85 46.72 34.35 5734.88 5645.41 1745.34 1398.53 5961123.55 600939.20 GCT-MS 6671.35 46.48 34.23 5760.65 5671.18 1767.85 1413.88 5961146.26 600954.25 GCT-MS 6708.85 46.27 34.16 5786.52 5697.05 1790.30 1429.13 5961168.91 600969.21 GCT-MS 6746.25 46.10 34.07 5812.42 5722.95 1812.65 1444.27 5961191.45 600984.04 GCT-MS 6783.75 45.90 33.92 5838.47 5749.00 1835.01 1459.35 5961214.01 600998.83 GCT-MS 6821.05 45.67 33.79 5864.48 5775.01 1857.21 1474.25 5961236.40 601013.42 GCT-MS 6858.45 45.47 33.75 5890.66 5801.19 1879.41 1489.09 5961258.80 601027.97 GCT-MS 6895.75 45.28 33.79 5916.86 5827.39 1901.48 1503.85 5961281.06 601042.43 GCT-MS 6933.15 45.17 33.76 5943.20 5853.73 1923.55 1518.61 5961303.32 601056.90 GCT-MS 6970.55 45.03 33.66 5969.60 5880.13 1945.59 1533.31 5961325.55 601071.31 GCT-MS 7007.85 44.95 33.70 5995.98 5906.51 1967.53 1547.93 5961347.68 601085.64 GCT-MS 7045.35 44.90 33.89 6022.53 5933.06 1989.54 1562.66 5961369.88 601100.07 GCT-MS 7082.75 44.78 34.07 6049.05 5959.58 2011.41 1577.40 5961391.94 601114.52 GCT-MS 7120.25 44.53 34.14 6075.73 5986.26 2033.23 1592.18 5961413.95 601129.01 GCT-MS 7157.70 44.33 34.12 6102.47 6013.00 2054.93 1606.89 5961435.85 601143.42 GCT-MS 7195.15 44.15 34.16 6129.30 6039.83 2076.56 1621.55 5961457.66 601157.80 GCT-MS 7232.00 43.87 34.32 6155.80 6066.33 2097.72 1635.96 5961479.01 601171.92 GCT-MS 7268.80 43.73 34.63 6182.36 6092.89 2118.72 1650.38 5961500.20 601186.06 GCT-MS 7305.65 43.78 34.97 6208.98 6119.51 2139.65 1664.92 5961521.32 601200.32 GCT-MS Halliburton Company Survey Report Company: BP Amoco Date: 7/13/200 6 Tim e: 16:26:27 Page: 7 j Field: Prudhoe Bay Co-or dinate(NE) Reference: Well: Z-26, True North Site: PB Z Pad Vertical ('TVll) Reference: 35:26 5/13/1989 00:00 89.5 Well: Z-26 Sectio n (VS) Reference: Well (O.OON,O.OO E,45.OOAzi) Wellpath: Z-26A Survey Calculation Method: Minimum Curvature Db: Oracle Su rs c~ MD lncl Azim TVD Sys "I`VD N/S F./N' !~IapIV MapE 'fool ft deg deg ft ft ft ft ft ft ~ 7342.50 43.72 35.18 6235.60 6146.13 2160.50 1679.57 5961542.36 601214.69 GCT-MS 7379.35 43.47 35.26 6262.29 6172.82 2181.26 1694.22 5961563.31 601229.06 GCT-MS 7416.10 43.20 35.30 6289.02 6199.55 2201.85 1708.79 5961584.09 601243.36 GCT-MS 7452.85 43.03 35.35 6315.85 6226.38 2222.34 1723.31 5961604.77 601257.60 GCT-MS 7489.50 42.77 35.41 6342.69 6253.22 2242.68 1737.75 5961625.30 601271.78 GCT-MS 7526.20 42.50 35.45 6369.69 6280.22 2262.94 1752.16 5961645.74 601285.92 GCT-MS 7562.90 42.42 35.57 6396.77 6307.30 2283.10 1766.56 5961666.09 601300.04 GCT-MS 7599.65 42.33 35.77 6423.92 6334.45 2303.23 1781.00 5961686.40 601314.21 GCT-MS 7636.30 42.18 35.97 6451.04 6361.57 2323.20 1795.44 5961706.56 601328.38 GCT-MS 7672.95 41.78 36.11 6478.29 6388.82 2343.02 1809.86 5961726.57 601342.54 GCT-MS 7709.65 41.48 36.32 6505.72 6416.25 2362.69 1824.27 5961746.43 601356.68 GCT-MS 7746.35 41.77 36.57 6533.15 6443.68 2382.30 1838.75 5961766.23 601370.90 GCT-MS 7783.15 42.43 36.81 6560.46 6470.99 2402.08 1853.49 5961786.20 601385.38 GCT-MS 7820.00 43.32 37.03 6587.46 6497.99 2422.13 1868.55 5961806.44 601400.17 GCT-MS 7856.70 44.53 37.15 6613.90 6524.43 2442.44 1883.90 5961826.95 601415.25 GCT-MS 7892.95 45.92 37.18 6639.43 6549.96 2462.94 1899.45 5961847.66 601430.53 GCT-MS 7928.95 47.15 37.15 6664.19 6574.72 2483.76 1915.23 5961868.69 601446.03 GCT-MS 7965.00 48.38 37.11 6688.42 6598.95 2505.04 1931.34 5961890.18 601461.86 GCT-MS 8001.10 49.70 37.13 6712.09 6622.62 2526.78 1947.80 5961912.13 601478.02 GCT-MS 8037.20 50.93 37.23 6735.14 6645.67 2548.91 1964.59 5961934.48 601494.51 GCT-MS 8073.19 52.08 37.34 6757.54 6668.07 2571.32 1981.65 5961957.11 601511.27 GCT-MS 8109.10 53.13 37.41 6779.35 6689.88 2594.00 1998.97 5961980.01 601528.29 GCT-MS 8145.10 53.87 37.47 6800.76 6711.29 2616.97 2016.56 5962003.22 601545.57 GCT-MS 8181.10 54.20 37.54 6821.90 6732.43 2640.09 2034.30 5962026.56 601563.00 GCT-MS 8217.10 54.15 37.68 6842.98 6753.51 2663.21 2052.11 5962049.92 601580.51 GCT-MS 8253.20 54.00 37.89 6864.16 6774.69 2686.31 2070.02 5962073.25 601598.11 GCT-MS 8289.20 54.02 38.10 6885.31 6795.84 2709.27 2087.96 5962096.44 601615.73 GCT-MS 8325.29 54.03 38.32 6906.51 6817.04 2732.22 2106.02 5962119.63 601633.49 GCT-MS 8361.35 54.05 38.58 6927.69 6838.22 2755.08 2124.17 5962142.72 601651.34 GCT-MS 8397.40 54.12 38.95 6948.83 6859.36 2777.84 2142.45 5962165.72 601669.31 GCT-MS 8433.40 54.18 39.50 6969.92 6880.45 2800.45 2160.90 5962188.57 601687.46 GCT-MS 8469.60 54.40 40.04 6991.05 6901.58 2823.04 2179.71 5962211.41 601705.96 GCT-MS 8505.70 54.62 40.40 7012.01 6922.54 2845.48 2198.69 5962234.10 601724.64 GCT-MS 8541.65 54.75 40.61 7032.79 6943.32 2867.79 2217.74 5962256.65 601743.40 GCT-MS 8577.15 54.97 40.94 7053.22 6963.75 2889.77 2236.70 5962278.88 601762.06 GCT-MS 8612.55 55.03 41.40 7073.52 6984.05 2911.60 2255.79 5962300.96 601780.86 GCT-MS 8648.00 54.77 41.63 7093.91 7004.44 2933.32 2275.01 5962322.93 601799.79 GCT-MS 8683.40 54.35 41.65 7114.44 7024.97 2954.87 2294.18 5962344.73 601818.67 GCT-MS 8718.70 54.05 41.57 7135.08 7045.61 2976.28 2313.19 5962366.39 601837.39 GCT-MS 8754.05 53.87 41.50 7155.88 7066.41 2997.67 2332.14 5962388.03 601856.06 GCT-MS 8789.40 53.65 41.49 7176.78 7087.31 3019.03 2351.03 5962409.63 601874.66 GCT-MS 8824.70 53.30 41.51 7197.79 7108.32 3040.27 2369.83 5962431.12 601893.17 GCT-MS 8859.90 52.88 41.56 7218.93 7129.46 3061.34 2388.49 5962452.43 601911.55 GCT-MS 8895.20 52.65 41.62 7240.29 7150.82 3082.36 2407.15 5962473.70 601929.93 GCT-MS 8930.54 52.53 41.73 7261.76 7172.29 3103.33 2425.81 5962494.91 601948.31 GCT-MS 8966.00 52.38 41.94 7283.37 7193.90 3124.28 2444.56 5962516.10 601966.78 GCT-MS 9001.45 52.33 42.12 7305.02 7215.55 3145.13 2463.36 5962537.20 601985.30 GCT-MS 9036.89 52.42 42.18 7326.66 7237.19 3165.94 2482.19 5962558.25 602003.85 GCT-MS 9072.40 52.50 42.20 7348.29 7258.82 3186.80 2501.10 5962579.36 602022.48 GCT-MS 9107.79 52.47 42.24 7369.84 7280.37 3207.59 2519.97 5962600.40 602041.07 GCT-MS 9143.29 52.42 42.30 7391.48 7302.01 3228.41 2538.90 5962621.47 602059.72 GCT-MS 9178.70 52.27 42.40 7413.11 7323.64 3249.13 2557.78 5962642.43 602078.33 GCT-MS 9213.54 52.17 42.50 7434.46 7344.99 3269.45 2576.37 5962662.99 602096.64 GCT-MS Halliburton Company Survey Report Company: BP Amoco Date: 7/13/2006 Time: 16:26:27 Page: S Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Z-26, True North Site: PB Z Pad Vertical (TVD) Reference: 35:26 5/13/1989 00:00 89.5 Well: Z-26 Section (VS) Reference: Well (O.OON,O.OOE,45.OOAzi) Wellpath: Z-26A Survey Calculation Method: Minimum Curvature Db: Oracle Su r~ c~ MapE Tool ft 602114.90 GCT-MS 602133.19 GCT-MS 602151.52 GCT-MS 602169.87 GCT-MS 602188.23 GCT-MS 602206.64 GCT-MS 602225.00 GCT-MS 602243.36 GCT-MS 602261.72 GCT-MS 602280.10 GCT-MS 602298.49 GCT-MS 602316.91 GCT-MS 602335.33 GCT-MS 602353.76 GCT-MS 602372.29 GCT-MS 602390.96 GCT-MS 602409.82 GCT-MS 602428.51 GCT-MS 602447.22 GCT-MS 602465.99 GCT-MS 602484.78 GCT-MS 602503.61 GCT-MS 602522.39 GCT-MS 602541.13 GCT-MS 602559.83 GCT-MS 602578.68 GCT-MS 602598.02 GCT-MS 602617.92 GCT-MS 602638.27 GCT-MS 602658.98 GCT-MS 602679.92 GCT-MS 602701.02 GCT-MS 602722.17 GCT-MS 602743.38 GCT-MS 602764.65 GCT-MS 602785.72 GCT-MS 602806.75 GCT-MS 602828.01 GCT-MS 602848.47 GCT-MS 602869.68 GCT-MS 602891.52 GCT-MS 602911.77 GCT-MS 602926.58 GCT-MS 602933.99 GCT-MS 602941.69 GCT-MS 602949.47 GCT-MS 602957.21 GCT-MS 602965.01 GCT-MS 602972.79 GCT-MS 602980.57 GCT-MS 602988.32 GCT-MS Cll~lllllC AG P~/'~T SAC MD Ind Azim TVD Sys TVD N!S E/W MapN H rlon rior. ft p f4 H R ' ~ Halliburton Company Survey Report Company: BP Amoco ~ Date 7/13/2006 Time: 16:26.27 Page: 9 ! Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Z-26, True North `~ Site: PB Z Pad Vertical ('I'VD)Reference: 35:26 5/13/1989 00:00 89.5 Well: Z-26 Section (VS) Reference: Well (O.OON,OAOE,45.OOAzi) Wellpath: Z-26A Survey Calculation Method: Minimum Curvature Db: Oracle Survey MD Incl Azim TVD SysTVD N/S E/W MapN MapE Tool ft deg deg ft ft ft ft ft ft 10783.49 43.35 78.62 8450.65 8361.18 4002.78 3493.34 5963408.35 603003.74 GCT-MS 10794.89 43.35 78.94 8458.94 8369.47 4004.31 3501.02 5963409.97 603011.39 GCT-MS 10806.79 43.37 79.06 8467.59 8378.12 4005.86 3509.04 5963411.63 603019.39 GCT-MS 10824.60 43.32 79.16 8480.55 8391.08 4008.17 3521.05 5963414.10 603031.36 GCT-MS 10846.49 43.20 79.53 8496.49 8407.02 4010.95 3535.79 5963417.07 603046.07 GCT-MS 10871.64 42.85 80.21 8514.87 8425.40 4013.97 3552.68 5963420.31 603062.92 GCT-MS 10897.39 42.70 80.74 8533.77 8444.30 4016.86 3569.93 5963423.43 603080.12 GCT-MS 10923.20 42.68 81.10 8552.75 8463.28 4019.62 3587.21 5963426.42 603097.36 GCT-MS 10949.20 42.63 81.43 8571.87 8482.40 4022.30 3604.62 5963429.33 603114.74 GCT-MS 10975.39 42.78 81.99 8591.11 8501.64 4024.86 3622.20 5963432.12 603132.28 GCT-MS 11001.60 43.37 82.71 8610.26 8520.79 4027.24 3639.94 5963434.74 603149.98 GCT-MS 11027.99 44.15 82.97 8629.32 8539.85 4029.52 3658.05 5963437.25 603168.06 GCT-MS 11053.89 44.70 82.89 8647.81 8558.34 4031.75 3676.04 5963439.72 603186.02 GCT-MS 11079.70 45.07 82.94 8666.10 8576.63 4033.99 3694.11 5963442.21 603204.06 GCT-MS 11105.49 45.48 83.11 8684.25 8594.78 4036.22 3712.30 5963444.68 603222.22 GCT-MS 11131.20 45.90 83.27 8702.21 8612.74 4038.40 3730.57 5963447.10 603240.45 GCT-MS 11156.89 46.17 83.29 8720.04 8630.57 4040.56 3748.93 5963449.50 603258.78 GCT-MS 11182.60 46.40 83.20 8737,81 8648.34 4042.75 3767.39 5963451.93 603277.20 GCT-MS 11208.29 46.77 83.11 8755.47 8666.00 4044.97 3785.91 5963454.40 603295.70 GCT-MS 11233.89 47.37 82.97 8772.90 8683.43 4047.24 3804.52 5963456.92 603314.27 GCT-MS 11259.49 48.18 82.85 8790.11 8700.64 4049.58 3823.33 5963459.51 603333.05 GCT-MS 11285.20 49.08 82.72 8807.10 8717.63 4052.01 3842.47 5963462.19 603352.16 GCT-MS 11310.79 49.95 82.54 8823.71 8734.24 4054.50 3861.78 5963464.94 603371.42 GCT-MS 11336.69 50.75 82.33 8840.24 8750.77 4057.13 3881.54 5963467.83 603391.15 GCT-MS 11362.29 51.63 82.17 8856.29 8766.82 4059.82 3901.31 5963470.78 603410.88 GCT-MS 11385.00 52.47 82.06 8870.25 8780.78 4062.28 3919.05 5963473.47 603428.58 MWD 11415.54 56.83 79.02 8887.92 8798.45 4066.39 3943.61 5963477.90 603453.08 MWD 11445.10 62.73 76.40 8902.79 8813.32 4071.84 3968.54 5963483.68 603477.94 MWD 11477.06 68.46 73.83 8915.99 8826.52 4079.32 3996.65 5963491.54 603505.95 MWD 11505.15 73.39 71.73 8925.17 8835.70 4087.19 4022.00 5963499.74 603531.18 MWD 11536.98 78.86 69.48 8932.80 8843.33 4097.45 4051.13 5963510.39 603560.17 MWD 11562.42 80.79 64.95 8937.30 8847.83 4107.15 4074.21 5963520.39 603583.12 MWD 11591.37 82.38 58.43 8941.54 8852.07 4120.72 4099.41 5963534.30 603608.13 MWD 11622.01 86.43 49.45 8944.53 8855.06 4138.66 4124.02 5963552.55 603632.50 MWD 11659.00 85.29 43.45 8947.21 8857.74 4164.06 4150.75 5963578.31 603658.89 MWD 11698.40 88.90 55.26 8949.21 8859.74 4189.64 4180.55 5963604.27 603688.35 MWD 11749.44 81.53 62.44 8953.47 8864.00 4215.93 4224.01 5963631.13 603731.46 MWD 11794.02 83.26 65.13 8959.37 8869.90 4235.45 4263.65 5963651.17 603770.83 MWD 11828.01 86.61 60.02 8962.37 8872.90 4251.04 4293.69 5963667.16 603800.65 MWD 11862.49 83.44 55.26 8965.36 8875.89 4269.41 4322.69 5963685.91 603829.41 MWD 11895.16 83.35 47.15 8969.13 8879.66 4289.73 4347.96 5963706.56 603854.41 MWD 11938.62 86.87 39.05 8972.84 8883.37 4321.32 4377.52 5963738.54 603883.54 MWD 11973.54 80.00 46.27 8976.83 8887.36 4346.81 4400.98 5963764.33 603906.66 MWD 12002.29 74.63 52.44 8983.15 8893.68 4365.07 4422.24 5963782.88 603927.67 MWD 12046.15 66.52 54.20 8997.73 8908.26 4389.77 4455.37 5963808.01 603960.47 MWD 12088.23 60.53 58.08 9016.48 8927.01 .4410.77 4486.61 5963829.42 603991.42 MWD 12130.16 51.72 73.23 9039.92 8950.45 4425.26 4518.04 5963844.32 604022.66 MWD 12176.77 44.58 83.45 9071.05 8981.58 4432.42 4551.91 5963851.93 604056.42 MWD 12194.83 42.11 90.68 9084.19 8994.72 4433.07 4564.27 5963852.75 604068.77 MWD 12220.00 42.11 90.68 9102.86 9013.39 4432.87 4581.14 5963852.77 604085.65 MWD TREE = MCEV OY WELLHEAD= FMC ACTUATOR = BAKER KB. ELEV = 89.47 BF. ELEV = 55.25' KOP = 3100' Max Angle = 89 @ 11698' Datum MD = Datum ND = 11,417' 8800' SS TLH DRAFT 13-318" CSG, 68#, L-80, ID = 12.415" Minimum ID = 2.370" @ 11363' TOP OF 2-7/8" LINER Z ~2 6 A 2 7/g"[(VR*TES:73o C@HROM05 4-1 /2" TBG & 3-112" / 10633' I--~4-1/2" HES X NIP, ID = 3.813" UNKNOWN DOG COLLAR DIE {07/05106) 10653' 9-5l8" X 4-1l2" BKR S-3 PKR, ID = 3.875" 10678' 4-1/2" HES X NIP, ID = 3.813" (TOP OF 7" LNR ~ 10739' 4-1/2" TBG, 12.6#, 13-CRVAM-ACE, 10791' .0152 bpf, ID = 3.958" 9-5/8" CSG, 47#, L-80, ID = 8.681" 10986' ~3-1/2" LNR, 8.81#, 13CR-STL, .0087 bpf, ID=2.992" ~~ 11363, BKR WHIPSTOCK (06/27/06) 11385' ', 2 RA PIP TAGS (06/27/06) 11395' PBTD 11785' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.278" 11850' PERFORATION SUMMARY REF LOG: MCNL/GR ON 07/05/08 ANGLE AT TOP PERF: 87 @ 11710' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2" 6 11710 - 11800 O 07/06/06 2" 8 12050 - 12065 O 07!06!06 2" 8 12087 - 12113 O 07/06/06 ^ 2211' (-{4-1/2" HES X NIP, ID = 3.813" GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 6 3196 3193 12 MMG DOME RK 16 07/12/06 5 5232 4817 49 MMG SO RK 20 07/12/06 4 6848 5883 46 MMG DMY RK 0 09/05/03 3 8162 6811 54 MMG DMY RK 0 09/05/03 2 9503 7613 51 MMG DMY RK 0 09/05/03 1 10563 8294 46 MMG DMY RK 0 09/05!03 10728' 3.70" BKR DEPLOY SLV, ID = 3.00" 10755' 3-1/2" HES X NIP, ID = 2.813" 10780' 4-1/2" HES XN NIP, MILLED ID = 3.80" (BEHIND PIPE) 10793' 4-1/2" WLEG, ID = 4.0" (BEHIND PIPE) 111-~TOPOFCEMENT I 11196' 7" MARKERJOINT 11363' 3-1 /2" X 2-7/8" XO, ID = 2.441 " MILLOUT WINDOW (Z-26A) 11390' -1139$' PBTD 12186~~ 2-7/8" LNR, 6.17#, 13CR-85 STL, .0058 bpf, ID = 2.441" 12220' DATE REV BY COMMENTS DATE REV BY COMMENTS 06/09/89 FERRET ORIGINAL COMPLETION 09/07/03 DACIKK RWO 07106/06 NORDIC1 CTDSIDETRACK(Z-26A) 07(12/08 JCMlTLH GLV GO 07!15108 MSEtTLH DRLG DRAFT CORRECTIONS __ __ PRUDHOE BAY UNff WELL: Z-26A PERMff No: 2060790 API No: 50-029-21945-01 SEC 19, T11 N, R12E, 721' FNL & 1844' FWL BP Exploration (Alaska) • • 14-Jul-06 AOGCC Ceresa Tolley 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 DEFINITIVE Re: Distribution of Survey Data for Well Z-26A Dear Dear Sir/Madam: Enclosed is one disk with the *.PTT and *.PDF files. Tie-on Survey: 11,362.29' MD Window /Kickoff Survey: 12,194.83' MD (if applicable) Projected Survey: 12,220.00' MD PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLIBURTON.COM OR SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Carl Ulrich 6900 Arctic Blvd. Anchorage, AK 99518 Date a ~~ Signed l~ '~M Please call me at 273-3545 if you have any questions or concerns. Regards, Carl Ulrich Survey Manager Attachment(s) 07/19/06 Se~~erg~ Alaska Data 8~ Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Well Job # i Q~ ~ 0~ ~~~~ Lo Descri tion NO. 3880 Company: State of Alaska Alaska Oil 8 Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Date BL Color CD 5-1 4 R V L 106 1 7 1211509 IL 06/24/06 1 P2-11A 11221564 JEWELRY/STATIC SURVEY 04/27/06 1 13-06A 11217266 INJECTION PROFILE 07/12106 1 P2-01 11223106 STATIC PRESSURE/JEWELRY 03/25/06 1 LS-08 11217256 PROD PROFILE W/GHOST & DEFT 06/06/06 1 16-04A 11217245 PROD PROFILE W/DEFT 05/08/06 1 05-40 11223123 LDL 07107/06 1 17-09 11211412 PROD PROFILE W/DEFT 8 GHOST 06/26/06 1 MPCA7 N/A SENSAIMEMORY GLS 04/22/06 1 04-18 1121584 USIT 06/27106 1 1:-51 11212873 USIT 06/28/06 1 04-31 11217264 USIT 07/07/06 1 D-14A 11217265 USIT 07/09/06 1 PSI-07 10703937 MDT 10/13/03 1 02-166 11209601 MCNL 04/25/06 1 1 L2-'18A 11217234 MCNL 04/06/06 1 1 LS-09 11212847 MCNL 04/25/06 1 1 Z-26A 11216205 MCNL 07/05/06 1 1 12-01 11072866 RST 07/06/05 1 1 E-17A 10928602 MCNL (Prints sent 1124105) 10!30/04 1 Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth • Mary Endacott Fax (so7> 2~sasa2 CT Drilling Engineer BP Exploration (Alaska) Inc. PO Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Z-2CA BP Exploration (Alaska) Inc. Permit No: 206-079 Surface Location: 721' FNL, 3108' FEL, SEC. 19, T11N, R12E, UM Bottomhole Location: 3711' FSL, 1452' FWL, SEC. 17, T11N, R12E, UM Dear Ms. Endacott: Enclosed is the approved application for permit to redrill 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). DATED this-? da of June 2006 y , cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALA OIL AND GAS CONSERVATION COMII~ION PERMIT TO DRILL 20 AAC 25.005 Wok .G ~. z~ zaoL, } awl"~1 ~? ~ ~ia~a 1 a. Type of work ^ Drill ®Redrill ^ Re-Entry 1 b. Current Well Class ^ Exploratory D Development Gas ^ Service ^ Multiple Zone ^ Stratigraphic Test ®Development Oil ^ Single Zone 1 c. Specify if well is propoged or: ~` ^ Coalbed Methane ^ Gasfdydrates ^ Shale Gas 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 11. Well Name and Number: PBU Z-26A ~ 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 12170 TVD 8980ss 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay 4a. Location of Well (Governmental Section): Surface: 3108' FEL UM 721' FNL SEC 19 T11N R12E 7. Property Designation: ADL 028262 Pool , , , , , Top of Productive Horizon: 3325' FSL, 710' FWL, SEC 17, T11N, R12E, UM 8. Land U`st3~?grmit: 13. Approximate S~ ate: J 19 006 Total Depth: 3711' FSL, 1452' FWL, SEC 17, T11 N, R12E, UM 9. Acres in Property: ~ 2480 14. Distance t arest Property: 11,850' 4b. Location of Well (State Base Plane Coordinates): Surface: x-599564 y-5959360 Zone-ASP4 10. KB Elevation (Height above GL): 89.47' feet 15. Distance to Nearest Well Within Pool: 1,280' 16. Deviated Wells: Kickoff Depth: 11385 feet Maximum Hole Angle: 86 d rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 3551 Surface: 2671 ~ 18. Casin Pr ram: S ecificatio ns To - Settin De th -Bottom Quanti of Cement, c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta a data 4-1 /8" s-vz" x z-~/a" 8.81# / 6.17# 13Cr80 STL 1500' 10670' 8369' 12170' 8980' 67 cu ft Class 'G' 19. PRESENT WELL COND-TION SUMMARY (To be completed for Redrill and Re-entry Operations) Total Depth MD (ft): 11850 Total Depth TVD (ft): 9115 Plugs (measured): 11523 Effective Depth MD (ft): 11523 Effective Depth TVD (ft)' 8951 Junk (measured): 11453 .Casing Length Size Cement Volume MD TVD Conductor /Structural 110' 20" 110' 110' Surface 2622' 13-3/8" 3684 cu ft Permafrost 2622' 2622' Intermediate 10986' 9-5/8" 2365 cu ft Class'G' 10986' 8599' Prod ction Liner 1111' 7" 368 cu ft Class 'G' 10739' - 11850' 8419' - 9115' Perforation Depth MD (ft): 11436' - 11670' Perforation Depth TVD (ft): 8901' - 9030' 20. Attachments ®Filing Fee, $100 ®BOP Sketch ®Drilling Program ^ Time vs Depth Plot ^ Shallow Hazard Analysis ^ Property Plat ^ 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 Mary Endacott, 564-4388 Printed Name Mary E,dacott Title CT Drilling Engineer Prepared By Name/Number: Si nature ~ ' ; ~L. ~% Phone 564-4388 Date ~ ( (,~ Terrie Hubble, 564-4628 Commission Use Only Permit To Drill Number: ,2, -® API Number: 50- 029-21945-01-00 Permit Approval Date: • ~ (~ See cover letter for other requirements Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained shales 1} ~ Samples Req'd: ^ Yes ~No Mud og Req'd: ^ Yes No $S ~ ~ d 1' ~.. ~"'O 3 SO D 'D~ !~ . HZS Measures: Yes No D' nal ey Req'd:~Yes ^ No Other: f/~~ / A PROVED BY THE COMMISSIO Date v ~ a ,COMMISSIONER Form 10-401 Revised 12/2005 f"^p ~ ~ ~ ~ (/ ~ ~r~it In Duplicate ' • `~ ~ -a~ I ~ 4 To: Winton Aubert, Petroleum Engineer Alaska Oil & Gas Conservation Commission From: M.S. Endacott, CTD Engineer Date: May 31, 2006 Re: Z-26A CTD Sidetrack Permit to Drill The sidetrack, Z-26A, is scheduled to be drilled by Nordic 1 during July, 2006. The plan calls for running a whipstock, kicking off into Zone 4 and target Zone 4 production. CTD Sidetrack Summary Rig Work 1. MIRU Nordic 1 and test BOPE. 2. Mill 3.8" window in Zone 4. 3. Drill sidetrack into Zone 4 target with resistivity log. 4. Run and cement liner. 5. Cleanout liner and run cased-hole MCNL log. 6. Perforate. 7. Freeze protect well and RDMO. Mud Program: • Well kill: 8.5 ppg b 'ne • Milling/drillin 6 pg biozan for milling, new Flo Pro 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. Casing Program: • 3 '/z" x 2 7/8" c nted liner from 10670' to 12170' MD. • A minimum o 12 bls 15.8 ppg cement will be used for liner cementing. OD Grade Weight / Min Burst ( si) Min Collapse (si) 13 3/8" L-80 68# 5020 2260 9-5/8" L-80 47# 6870 4760 7" L-80 26# 7240 5410 4 i/z" 13CR-80 12.6# 8430 7500 Planned: 3 ~/z" STL 13CR-80 8.81# 10160 10540 2 7/8" STL 13CR-80 6.17# 11230 11820 • • 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 85deg. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property - 11,850ft. • Distance to nearest well within pool - 1,280 ft (Well Z-25). Logging • MWD directional, resistivity and Gamma Ray will be run over all of the open hole section. • Log memory CNL/GR/CCL from the tubing tail to PBTD. Hazards • Most wells are betwee 0-20~pm of HzS on Z pad. • Lost Circulation risk is Ilium. Possible lost circulation in zone 3 due to fault crossing. • Challenging drilling in zone 3. Reservoir Pressure • Res. press. is estimated to be 3551 psi at 8800'ss (7.8 ppg EMW). • Maximum surface pressure with gas (0.10 psi/ft) to surface is 2671 psi. ~ CC: Well File Terrie Hubble .E = MCEV OY WELLHEAD = FMC ACTUATOR= ~-BAKER KB. ELEV = _ 89.47 BF. ELEV = _ 55.25' KOP= ~ _--3100' Max Angle = 63 @ 1.1800' Datum MD = 11,417' Datum TV D = 8800' SS 13-3/8" CSG, 68#, L-80, ID = 12.415" ~-) 2622' Minimum ID = 3.725" @ 10780' 4-112" HES XN NIPPLE Z _~ ~ S TES: 4-112" CHROME TBG. 2211' 4-1/2" HES X NIP, ID = 3.813" • GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3196 3193 12 MMG DOME RK 16 04!13/04 5 5232 4817 49 MMG SO RK 20 04/13/04 4 6848 5883 46 MMG DMY RK 0 09/05/03 3 8162 6811 54 MMG DMY RK 0 09!05/03 2 9503 7613 51 MMG DMY RK 0 09/05/03 1 10563 8294 46 MMG DMY RK 0 09/05/03 10633' ~~ 4-1/2" HES X NIP, ID = 3.813" 10653' -j 9-5/8" X 4-112" BKR S-3 PKR, ID = 3.875" 10678' 4-1/2" HES X NIP, ID = 3.813" 10780' 4-1/2" HES XN N(P, tD = 3.725" (4-112" TBG, 12.6#, 13-CR, .0152 bpf, ID = 3.958" ~ 10791' 9-5/8" CSG, 47#, L-80, ID = 8.681" 1-~9$6' t ERFORATION SUMMARY REF LOG: BHCA ON 05/31!89 ANGLE AT TOP PERF: 54 @ 11436' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2-118" 6 11436 - 11474 O 06/30/94 2-1/8" 6 11504 - 11518 O 05/07/94 2-1/8" 6 11522 - 11530 C 05/07/94 2-i/8" 4 11530 - 11540 C 04/05191 2-118" 6 11540 - 11555 C 05!07/94 2-118" 4 11562 - 11570 C 04/05/91 2-1/8" 4 11574 - 11620 C 04/05/91 5" 4 11630 - 11670 C 03!16/91 2-1/8" 4 11630 - 11670 C 04/05/91 PBTD 11785' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 11850' DATE REV BY COMMENTS DATE REV BY COMMENTS 06/09/89 FERREL ORIGINAL COMPLETION 09(07(03 DAClKK RWO 09!25!03 AF/KAK FISH LOST 06/30/94 03/23/04 JLJ/KAK GLV CIO 04113(04 JLJ/KAK GLV C/O 04!28!05 KEY/PJC FCO 10793' -~ 4-1 /2" W LEG, ID = 4.0" ELMD TT NOT LOGGED 11195' I--j MARKER JOINT I 11453' FISH - 10' STRIP GUN (06130194) 11523' ~-~ TOP OF FILL (4/28!05) PRUDHOE BAY UNIT WELL: Z-26 PERMIT No: w1890520 API No: 50-029-21945-00 SEC 19, T11N, R12E, 721' FNL & 1$44' FWL BP Exploration (Alaska) TREE _ WELLHEAD= FMC ACTUATOR= BAKER KB. ELEV = 89.47' BF. ELEV = 55.25' KOP = 3100' Max Angle = 63 (Oj 11800' Datum MD= 11,417' Datum TV D = 8800' SS 13-3/8" CSG, 68#, L-80, ID = 12.415" Minimum ID = 3.725" @ 10780' 4-1/2" HES XN NIPPLE (milled to 2.8") TBG, 12.6#, 13-C R, .0152 bpf, ID = 3.958" ~ 10791' 9-5/8" CSG, 47#, L-80, ID = 8.681" 10986' PERFORATION SUMMARY REF LOG: BHCA ON 05/31/89 ANGLE AT TOP PERF: 54 (d1 11436' Note: Refer to Productan DB for historical perf data SQE SPF INTERVAL Opn/Sqz DATE 2-1/8" 6 11436 - 11474 sol;~ted propose 2-1/8" 6 11504 - 11518 isolated proposed 2-1/8" 6 11522 - 11530 isolated proposed 2-1/8" 4 11530 - 11540 isolated proposed 2-1/8" 6 11540 - 11555 isolated proposed 2-1/8" 4 11562 - 11570 isolated proposed 2-1/8" 4 11574 - 11620 isolated propose~~ 5" 4 11630 - 11670 isolated proposed 2-1/8" 4 11630 - 11670 isolated proposed 11785' 17" LNR, 26#, L-80, .0383 bpf, D = 6.276" ~ SAFETY NOTES: 4-1 /2" CHROME TBG. ~ 4-1 /2" HES X NIP, D= 3.813" ~ GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3196 3193 12 MMG DOME RK 16 04/13/04 5 5232 4817 49 MMG SO RK 20 04/13/04 4 6848 5883 46 MMG DMY RK 0 09/05/03 3 8162 6811 54 MMG DMY RK 0 09/05/03 2 9503 7613 51 MMG DMY RK 0 09/05/03 1 10563 8294 46 MMG DMY RK 0 09/05/03 10633' H 4-1 /2" HES XNIP, D = 3.81 10653' 9-5/8" X 4-1/2" BKR S-3 PKR, ID= 10670' roP OF 3-112" LNR 10678' 4-1/2" HES X N~, D = 3.813" 10680' 3.5" XN Nip 2.75" ID 10780' 4-1/2" HES XN N~, D = 3.725" ml e o 10793' a-1/z" WLEG, D=a.o" ELMD TT NOT LOGGED 11200' i ~; 11195' MARKER Jo~vr 1135U' ~~ 1'2 x c-7;8 X-over /2" x 2- 11453' DATE REV BY COMMENTS DATE REV BY COMMENTS 06109189 Ft~2REl ORIGINAL COMPLETION 09107/03 DACIKK RWO 09/25/03 AF/KAK FISH LOST O6/30/94 03/23/04 JLJ/KAK GLV GO 04/13/04 JLJ/KAK GLV GO 04/28/05 KEY/PJC FCO Z-26A [ Proposed CTD Sidetrack FISH - 10' S1 TOP OF FILL PRUDHOEBAY UNR 1NELL: Z-26 PERMIT No: 1890520 API No: 50-029-21945-00 SEC 19, T11 N, R12E, 721' FNL 8 1844' FVJL t8P Exploration (Alaska) • • Q ~~~ ~~~~ F ~ 'R! 1~~ ~8$ eE 1F 8~q(p{•~ ~F ~0si~ ~~ . .~ r~ I _l i d i\ k ~ ~ ~ t ~ k ~. } [~ `\ ~~ i ~ E `F~ F ~: ~~ t i~~ {`=t~~ ~ 4{~tif~~t~~t~t~t ~r~;~~~~i rii~~tf `~ E ~ (~~YiMIN•~N~~ o of ,' ~} '1 i ~ .~ ~ is a o p~~Se~ - °s a z~°a~ E - A ~~$~f a ~~~: A~~ ~ t~~~~ a ~`{a3 m +}}f t~ if ~ ~ ~g°~~ ~` F' ~ $ ~. .8. .. 11 a g ~~ °s 8 = ~$ y~> a R a a ~1 III e i t 6 ~-_ ~~. ir~~ ° (i~ f1i4 ..... iL i ~~ A a {{ x ~ ,~7 '~. R 0 ~ ;i.F~ A ~ p ~ ! z A I it ~~ BP Alaska • by Baker Hughes INTEQ Planning Report B~R^ ~s INTEQ Company: BP Amoco Date: 4/t5/2006 Time: 19:42:46 Fage: i Field:' Prudhoe Bay Co-ordin'te(NE) Reference: Well: Z-26, True.North. Sites. PB Z Pad - Vertical (TVD) Reference: 35:26 5/13/1989 00:00 89.5 Welt:' Z-26 Section(V5)Refereece: Welt{O:OON,O:p0E,45.00Azi) Weppath: Plan 1, Z-26A Survey Calcalatron Methadt Minimum Gurvature = Db: Orade Field: Prudhoe Bay North Slope UNITED STATES Map System:US State Plane Coordinate System 1927 Map Zone: Alaska, Zone 4 Geo Datum: NAD27 (Clarke 1866) Coordinate System: Well Centre Sys Datum: Mean Sea Leve! Geomagnetic Model: bggm2005 Site: PB Z Pad TR-11-12 UNITED STATES :North Slope Site Positron: Northing: 5957230.17 ft Latitude: 70 17 33.051 N From: Map Easting: 601304.82 ft Longitude: 149 10 47.365 W Position Uncertainty: 0.00 ft North Reference: True Ground Level: 0.00 ft Grid Convergence: 0.77 deg Well: Z-26 Slot Name: 26 Z-26 Well Position: +N/-S 2153.47 ft Northing; 5959360.19 ft Latitude: 70 17 54.228 N +E/-W -1711.59 ft Easting : 599564.52 ft Longitude: 149 11 37.259 W Position Uncertainty: 0.00 ft Wellpath: Plan 1, Z-26A Drilled From: Z-26 Tie-on Depth: 11362.29 ft Current Datum: 35:26 5/13/1989 00:00 Height 89.47 ft Above System Datum: Mean Sea Level Magnetic Data: 4!15/2006 Declination: 24.31 deg Field Strength: 57583 nT Mag Dip Angle: 80.83 deg Vertical Section: Depth From (TVD) +N/-S +E/-W Direction ft ft ft deg 35.47 0.00 0.00 45.00 Plan: Plan #1 Date Composed: 4!15/2006 copy Lamar's plan 1 Version: 3 Principal: Yes Tied-to: From: Definitive Path Targets i Name Description Dip. Dir. TVD ft +N/-S ft +E!-W ft Map Northing ft Map Easting ft <-: Latitude _a Deg. Alin Sec <Y,. Longitude ---~ Deg Mip Sec Z-26A Polygon 89.47 4198.21 3951.79 5963610.00 603459.99 70 18 35.507 N 149 9 41.998 W -Polygon 1 89.47 4198.21 3951.79 5963610.00 603459.99 70 18 35.507 N 149 9 41.998 W -Polygon 2 89.47 4521.05 4496.16 5963940.00 603999.99 70 18 38.679 N 149 9 26.114 W -Polygon 3 89.47 4399.06 4644.57 5963820.00 604149.99 70 18 37.478 N 149 9 21.788 W -Polygon 4 89.47 3976.61 4068.88 5963390.00 603579.99 70 18 33.327 N 149 9 38.586 W Z-26A Fault1 89.47 4393.86 4282.44 5963810.00 603787.99 70 18 37.429 N 149 9 32.350 W -Polygon 1 89.47 4393.86 4282.44 5963810.00 603787.99 70 18 37.429 N 149 9 32.350 W -Polygon 2 89.47 4283.17 4332.98 5963700.00 603839.99 70 18 36.340 N 149 9 30.878 W -Polygon 3 89.47 4153.10 4336.26 5963570.00 603844.99 70 18 35.061 N 149 9 30.784 W -Polygon 4 89.47 4283.17 4332.98 5963700.00 603839.99 70 18 36.340 N 149 9 30.878 W Z-26A FaultA 89.47 4782.64 4379.61 5964200.00 603879.99 70 18 41.252 N 149 9 29.509 W -Polygon 1 89.47 4782.64 4379.61 5964200.00 603879.99 70 18 41.252 N 149 9 29.509 W -Polygon 2 89.47 4636.94 4807.75 5964060.00 604309.99 70 18 39.817 N 149 9 17.023 W -Polygon 3 89.47 4460.58 5285.50 5963890.00 604789.99 70 18 38.079 N 149 9 3.092 W -Polygon 4 89.47 4636.94 4807.75 5964060.00 604309.99 70 18 39.817 N 149 9 17.023 W Z-26A Target/ 8941.47 4121.48 4080.80 5963535.00 603589.99 70 18 34.752 N 149 9 38.236 W -Plan out by 16.44 at 8941.47 4114.25 4095.56 5963527.97 603604.85 70 18 34.680 N 149 9 37.806 W Z-26A Target2 8971.47 4337.42 4390.71 5963755.00 603896.99 70 18 36.874 N 149 9 29.193 W -Plan out by 15.24 at 8971.47 4325.25 4381.54 5963742.72 603887.98 70 18 36.754 N 149 9 29.461 W Z-26A Target3 9069.47 4436.39 4545.05 5963856.01 604049.99 70 18 37.846 N 149 9 24.690 W -Plan out by 2.70 at 9069.47 4434.02 4543.75 5963853.62 604048.73 70 18 37.823 N 149 9 24.728 W Annotation bID TVD f< ft 11362.29 8856.29 TIP 11385.00 8870.25 KOP 11405.00 8882.19 End of 9 Deg/100' DLS 11572.99 8940.31 4 11712.99 8952.62 5 BP Alaska • by Baker Hughes INTEQ Planning Report s~R~ ~s INTEQ Company: BP Amoco Date: 4/15/2006 Time: 19:42:46 Page: 2 Field: Prudhoe Bay Co-ordinate(NE) Reference: WeIC Z-26, True North Sites P B Z Pad Vertica((TVD) Reference: 35:26 5/13/ 1989 00:00 89.5 Well:'` Z-26 Section (VS) Reference: Well (O.OON,O.OpE,45.00Azi) Wellpath: P lan 1, Z-26A SurveyCalculation Method: Minimum Curvature Dtr: Oracle Annotation MD TVD ft ft 11852.99 8964.06 6 11942.99 8971.20 7 12170.00 9069.30 TD Plan Section Information MD Incl Azim TVD +N!-S +E/.W bLS Build Tn>ru TFO Target ft deg deg ft - ft ft degM 00ft de9/100ft deg/100ft deg 11362.29 51.63 82.17 8856.29 4059.82 3901.31 0.00 0. 00 0.00 0.00 11385.00 52.47 82.06 8870.25 4062.28 3919.05 3.72 3. 70 -0.48 354.07 11405.00 54.21 81.49 8882.19 4064.57 3934.93 9.00 8. 70 -2.87 345.00 11572.99 85.00 66.88 8940.31 4108.79 4083.55 20.00 18. 33 -8.69 333.00 11712.99 85.12 38.77 8952.62 4192.22 4193.56 20.00 0. 08 -20.08 269.00 11852.99 85.69 66.86 8964.06 4275.70 4303.62 20.00 0. 41 20.06 90.00 11942.99 85.28 48.81 8971.20 4323.26 4379.25 20.00 -0. 45 -20.06 268.00 12170.00 42.58 66.73 9069.31 4433.96 4543.61 20.00 -18. 81 7.89 163.00 Survey MD Incl Azim Sys,TVD N/5 EIW MapN MspE DIS' VS TFO Tool ft deg deg ft ft ft ft ft deg/100ft tt deg 11362.29 51.63 82.17 8766.82 4059.82 3901.31 5963470.98 603411.35 0.00 5629.37 0.00 MWD 11385.00 52.47 82.06 8780.78 4062.28 3919.05 5963473.67 603429.06 3.72 5643.65 354.07 MWD 11400.00 53.77 81.63 8789.78 4063.98 3930.93 5963475.53 603440.91 9.00 5653.25 345.00 MWD 11405.00 54.21 81.49 8792.72 4064.57 3934.93 5963476.17 603444.90 9.00 5656.50 345.26 MWD 11425.00 57.79 79.34 8803.90 4067.34 3951.27 5963479.16 603461.21 20.00 5670.01 333.00 MWD 11450.00 62.32 76.89 8816.38 4071.81 3972.46 5963483.91 603482.33 20.00 5688.16 334.20 MWD 11475.00 66.88 74.63 8827.10 4077.37 3994.34 5963489.76 603504.13 20.00 5707.56 335.43 MWD 11500.00 71.48 72.52 8835.99 4083.99 4016.74 5963496.67 603526.45 20.00 5728.08 336.40 MWD 11525.00 76.10 70.52 8842.96 4091.60 4039.50 5963504.58 603549.10 20.00 5749.56 337.15 MWD 11550.00 80.73 68.60 8847.99 4100.15 4062.44 5963513.43 603571.92 20.00 5771.83 337.70 MWD 11572.99 85.00 66.88 8850.84 4108.79 4083.55 5963522.35 603592.91 20.00 5792.86 338.09 MWD 11575.00 84.99 66.48 8851.02 4109.59 4085.39 5963523.17 603594.74 20.00 5794.72 269.00 MWD 11600.00 84.93 61.46 8853.21 4120.51 4107.75 5963534.39 603616.96 20.00 5818.26 269.04 MWD 11625.00 84.90 56.44 8855.43 4133.35 4129.08 5963547.51 603638.11 20.00 5842.42 269.48 MWD 11650.00 84.91 51.42 8857.65 4148.01 4149.20 5963562.43 603658.03 20.00 5867.01 269.92 MWD 11675.00 84.97 46.40 8859.85 4164.37 4167.96 5963579.04 603676.58 20.00 5891.85 270.37 MWD 11700.00 85.06 41.38 8862.03 4182.32 4185.22 5963597.21 603693.59 20.00 5916.74 270.81 MWD 11712.99 85.12 38.77 8863.15 4192.22 4193.56 5963607.22 603701.80 20.00 5929.64 271.25 MWD 11725.00 85.12 41.18 8864.17 4201.39 4201.24 5963616.49 603709.36 20.00 5941.56 90.00 MWD 11750.00 85.16 46.20 8866.29 4219.39 4218.44 5963634.72 603726.32 20.00 5966.45 89.79 MWD 11775.00 85.23 51.22 8868.38 4235.83 4237.16 5963651.40 603744.81 20.00 5991.30 89.37 MWD 11800.00 85.34 56.23 8870.44 4250.56 4257.24 5963666.40 603764.69 20.00 6015.92 88.95 MWD 11825.00 85.49 61.25 8872.44 4263.49 4278.53 5963679.61 603785.81 20.00 6040.12 88.54 MWD 11850.00 85.67 66.26 8874.37 4274.51 4300.88 5963690.92 603808.01 20.00 6063.72 88.14 MWD 11852.99 85.69 66.86 8874.59 4275.70 4303.62 5963692.14 603810.73 20.00 6066.49 87.75 MWD 11875.00 85.55 62.45 8876.28 4285.09 4323.44 5963701.80 603830.43 20.00 6087.15 268.00 MWD 11900.00 85.42 57.43 8878.24 4297.57 4345.01 5963714.56 603851.82 20.00 6111.22 268.34 MWD 11925.00 85.33 52.42 8880.26 4311.88 4365.39 5963729.14 603872.02 20.00 6135.76 268.73 MWD 11942.99 85.28 48.81 8881.73 4323.26 4379.25 5963740.70 603885.72 20.00 6153.61 269.14 MWD 11950.00 83.94 49.22 8882.39 4327.84 4384.52 5963745.34 603890.93 20.00 6160.56 163.00 MWD 11975.00 79.17 50.71 8886.06 4343.74 4403.44 5963761.50 603909.64 20.00 6185.19 162.96 MWD 12000.00 74.39 52.25 8891.78 4358.89 4422.48 5963776.90 603928.47 20.00 6209.37 162.74 MWD 12025.00 69.64 53.86 8899.50 4373.19 4441.47 5963791.44 603947.27 20.00 6232.90 162.39 MWD 12050.00 64.89 55.57 8909.16 4386.51 4460.28 5963805.01 603965.90 20.00 6255.62 161.89 MWD 12075.00 60.17 57.43 8920.69 4398.75 4478.77 5963817.50 603984.22 20.00 6277.35 161.23 MWD 12100.00 55.48 59.46 8934.00 4409.83 4496.79 5963828.81 604002.09 20.00 6297.93 160.37 MWD 12125.00 50.82 61.74 8948.99 4419.65 4514.20 5963838.87 604019.37 20.00 6317.19 159.29 MWD 12150.00 46.21 64.34 8965.54 4428.16 4530.88 5963847.59 604035.94 20.00 6335.00 157.92 MWD 12170.00 42.58 66.73 8979.84 4433.96 4543.61 5963853.56 604048.59 20.00 6348.10 156.20 3.50" • • are L NN~_ L.1. bag Dowell of bag Blind/Shears 2 3/8" combi ram/slips BAG TOTs ~ Mud Cross I I Mud Cross cross variable bore pipe 3 112"-2 7/8" 2 3/8" combi ram/slips b Valve TOTs ~ Flow Tee TERRIE L RUBBLE BP EXPLORATION AK INC "Mastercard Check" PO 80X 196612 MB 7-5 ANCHORAGE, AK 99519-6612 PAY TO THE. ORDER OF . \- /1' ~ N~ lam/ U~~J~ ~ L~~ First National Bank Alaska Anchorage; AK 99r5~01 MEMO ~ '~`-~ • 89-6/1252 27rJ DATE ~"' ~ ~ ~ s ~~ s (~~`~ ~:L25200060~:99~4~~~6227~~~L556~~' 0275 • • TRANSMITTAL LETTER CHECKLIST WELL NAME ~?' PTD# 1L~~ ` ~ ~c-~/ Development Service Exploratory Stratigraphic Test Non-Conventional Well Circle Appropriate Letter /Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS TEXT FOR APPROVAL LETTER I WHAT (OPTIONS) APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing we l l (If last two digits in permit No. API No. 50- - - API number are , between 60-69) 'Production should continue to be reported as a function of the original API number stated above. ~ PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH} and API number (50- - -) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce /inject is contingent upon issuance of a conservation order approving a spacing ~ exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Please note the following special condition of this permit: Non-Conventional production or production testing of coal bed methane is not allowed Well for (name of wel11 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 ro ram. 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To improve the readability of the Well Nistory file and to simplify rending information, infom~alion of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made io chronologically organize this category of information. Sperry-Sun Dr~ing Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Wed Jul 19 15:29:50 2006 Reel Header Service name .............LISTPE Date .....................06/07/19 Origin ...................STS Reel Name ................UNKNOWN Continuation Number......01 Previous Reel Name.......UNKNOWN Comments .................STS LIS Writing Library. Tape Header Service name .............LISTPE Date .....................06/07/19 Origin ...................STS Tape Name ................UNKNOWN Continuation Number......01 Previous Tape Name.......UNKNOWN Comments .................STS LIS Writing Library Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 1 W-0004480472 S. LATZ R. WHITLOW / SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD r1 U Scientific Technical Services Scientific Technical Services Z-26A 500292194501 BP Exploration (Alaska) Inc. Sperry Drilling Services 19-JUL-06 19 11N 12E 721 1844 89.47 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 3.750 4.500 11385.0 2ND STRING 3RD STRING PRODUCTION STRING aa~ -o'er ~iyba~ ! • REMARKS: 1. ALL DEPTHS ARE BIT DEPTHS UNLESS OTHERWISE NOTED. THESE DEPTHS ARE MEASURED DEPTH (MD). 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH - SUBSEA (TVDSS). 3. THIS WELL WAS DRILLED FROM A WHIPSTOCK, THE TOP OF WHICH WAS AT 11385'MD/8781'TVDSS IN THE Z-26 WELLBORE. 4. MWD RUN 1 COMPRISED DIRECTIONAL, GAMMA RAY (GM) UTILIZING GEIGER- MUELLER TUBE DETECTORS, AND ELECTROMAGNETIC WAVE RESISTIVITY PHASE-4 (EWR4). 5. LOG AND MERGED DIGITAL DATA (LDWG) ONLY WERE SHIFTED TO A SCHLUMBERGER CASED-HOLE GAMMA RAY RUN IN THE Z-26A WELLBORE ON 5 JULY 2006. THESE LOG DATA WERE PROVIDED BY D. DORTCH (SAIC/BP) ON 13 JULY 2006. LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTH REFERENCES. 6. MWD RUN 1 REPRESENTS WELL Z-26A WITH API #: 50-029-21945-01. THIS WELL REACHED A TOTAL DEPTH (TD) OF 12220'MD/9,013'TVDSS. SROP = SMOOTHED RATE OF PENETRATION WHILE DRILLING. SGRC = SMOOTHED GAMMA RAY COMBINED. SEXP = SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (EXTRA SHALLOW SPACING). SESP = SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (SHALLOW SPACING). SEMP = SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (MEDIUM SPACING). SEDP = SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (DEEP SPACING). SFXE = SMOOTHED FORMATION EXPOSURE TIME. File Header Service name .............STSLIB.001 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......06/07/19 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH GR 11217.5 RPD 11378.0 RPM 11378.0 RPS 11378.0 all bit runs merged. STOP DEPTH 12174.0 12188.5 12188.5 12188.5 . • RPX 11378 12188.5 FET 11378.0 12188.5 ROP 11409.5 12219.0 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) --------- EQUIVALENT UNSHIFTED DEPTH - -------- BASELINE DEPTH GR 11219.5 11218.5 11223.5 11222.5 11226.0 11225.5 11231.0 11230.5 11240.0 11239.0 11365.5 11365.5 11375.5 11375.5 11382.5 11384.0 11391.5 11391.5 11393.0 11393.0 11395.0 11395.0 11396.5 11397.0 11398.0 11398.5 11407.0 11406.5 11422.0 11422.0 11423.0 11423.0 11433.5 11433.0 11438.0 11438.0 11470.0 11471.0 11477.0 11477.0 11483.0 11482.5 11485.0 11484.5 11495.5 11496.0 11499.5 11499.5 11519.0 11521.0 11531.5 11532.0 11539.5 11540.0 11549.5 11548.0 11554.5 11553.0 11558.5 11558.0 11569.0 11567.5 11573.0 11571.5 11584.5 11584.5 11589.5 11588.5 11594.5 11593.5 11598.5 11598.5 11612.5. 11613.0 11621.0 11622.5 11629.0 11628.5 11632.0 11631.5 11658.0 11658.0 11662.5 11664.0 11668.0 11669.0 11669.5 11672.0 11675.0 11677.5 11687.5 11688.5 11699.0 11699.0 11702.5 11701.0 11722.0 11722.0 11734.0 11733.5 11737.5 11738.5 11741.0 11740.5 11744.0 11743.0 11748.0 11748.0 11752.0 11752.5 11757.5 11758.0 11760.0 11759.5 11775.0 11774.0 11781.0 11779.5 11786.5 11799.0 11806.0 11809.0 11815.5 11832.5 11842.0 11859.0 11871.5 11878.5 11887.0 11890.0 11926.5 11929.0 11934.0 11939.0 11948.0 11952.0 11957.0 11968.5 11975.0 12012.0 12014.0 12020.5 12030.0 12037.0 12043.0 12066.0 12071.0 12078.0 12080.0 12081.5 12091.5 12095.0 12097.5 12099.5 12219.0 MERGED DATA SOURCE 11786 11798.5 11805.0 11807.0 11814.5 11831.0 11842.0 11860.0 11871.0 11879.0 11888.0 11891.0 11926.5 11929.0 11933.5 11937.5 11946.5 11951.0 11957.0 11969.0 11976.5 12014.0 12016.5 12024.0 12032.0 12038.0 12042.5 12067.5 12074.0 12081.0 12082.5 12084.0 12093.5 12096.0 12098.5 12100.5 12220.0 PBU TOOL CODE BIT RUN NO MERGE TOP MERGE BASE MWD 1 11216.5 12221.0 REMARKS: MERGED MAIN PASS. Data Format Specification Record Data Record Type ..................0 Data Specification Block Type.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD OHMM 4 1 68 4 2 RPM MWD OHMM 4 1 68 8 3 RPS MWD OHMM 4 1 68 12 4 RPX MWD OHMM 4 1 68 16 5 FET MWD HOUR 4 1 68 20 6 GR MWD API 4 1 68 24 7 ROP MWD FT/H 4 1 68 28 8 • • • First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 11217.5 12219 11718.3 2004 11217.5 12219 RPD MWD OHMM 2.28 2000 40.5444 1622 11378 12188.5 RPM MWD OHMM 0.27 2000 28.8287 1622 11378 12188.5 RPS MWD OHMM 0.13 1988.37 24.5832 1622 11378 12188.5 RPX MWD OHMM 0.3 1901.32 17.3575 1622 11378 12188.5 FET MWD HOUR 0.15 2.84 1.13066 1622 11378 12188.5 GR MWD API 18.33 193.59 58.1124 1674 11217.5 12174 ROP MWD FT/H 0.46 560.3 64.3677 1620 11409.5- 12219 First Reading For Entire File..........11217.5 Last Reading For Entire File...........12219 File Trailer Service name .............STSLIB.001 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......06/07/19 Maximum Physical Record..65535 File Type ................LO Next File Name...........STSLIB.002 Physical EOF File Header Service name .............STSLIB.002 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......06/07/19 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 11216.5 12175.0 RPD 11378.5 12189.5 RPM 11378.5 12189.5 RPS 11378.5 12189.5 RPX 11378.5 12189.5 FET 11378.5 12189.5 ROP 11409.0 12221.0 LOG HEADER DATA DATE LOGGED: 04-JUL-06 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 4.3 DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT) 12220.0 TOP LOG INTERVAL (FT) 11409.0 BOTTOM LOG INTERVAL (FT)~ BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE GM Dual GR EWR4 ELECTROMAG. RESIS. 4 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: -MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: Data Format Specification Record Data Record Type ..................0 Data Specification Block Type.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 12220.0 52.5 88.9 TOOL NUMBER 82758 218615 3.750 11385.0 Polymer 8.70 80.0 9.2 24000 5.4 .120 70.0 .050 170.0 .140 70.0 .150 70.0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWDO10 OHMM 4 1 68 4 2 RPM MWDO10 OHMM 4 1 68 8 3 RPS MWDO10 OHMM 4 1 68 12 4 RPX MWDO10 OHMM 4 1 68 16 5 FET MWDO10 HOUR 4 1 68 20 6 GR MWD010 API 4 1 68 24 7 ROP MWDO10 FT/H 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 11216.5 12221 11718.8 2010 11216.5. 12221 RPD MWDO10 OHMM 2.28 2000 39.7246 1623 11378.5 12189.5 RPM MWDO10 OHMM 0.2~ 2000 RPS MWDO10 OHMM 0.13 1988.37 RPX MWDO10 OHMM 0.3 1901.32 FET MWDO10 HOUR 0.15 2.84 GR MWDO10 API 18.33 193.59 ROP MWDO10 FT/H 0.46 560.3 29.787 1623 378.5 12189.5 23.8038 1623 11378.5 12189.5 16.4477 1623 11378.5 12189.5 1.13206 1623 11378.5 12189.5 57.8348 1676 11216.5 12175 64.7438 1625 11409. 12221 First Reading For Entire File..........11216.5 Last Reading For Entire File...........12221 File Trailer Service name .............STSLIB.002 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......06/07/19 Maximum Physical Record..65535 File Type ................LO Next File Name...........STSLIB.003 Physical EOF Tape Trailer Service name........... .LISTPE Date .....................06/07/19 Origin ...................STS Tape Name ................UNKNOWN Continuation Number......01 Next Tape Name...........UNKNOWN Comments .................STS LIS Writing Library Reel Trailer Service name .............LISTPE Date .....................06/07/19 Origin ...................STS Reel Name ................UNKNOWN Continuation Number......01 Next Reel Name...........UNKNOWN Comments .................STS LIS Writing Library. Physical EOF Physical EOF Scientific Technical Services Scientific Technical Services End Of LIS File