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204-230
STATE OF ALASKA 0LASKA OIL AND GAS CONSERVATION COMMIS• REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon ❑ Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend ❑ Perforate El Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 204-230 3. Address: P.O.Box 196612 Anchorage, Development RI Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-21990-01-00 7. Property Designation(Lease Number): ADL 0028245 8. Well Name and Number: PBU Z-04A 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 12660 feet Plugs measured feet true vertical 9018 feet Junk measured 10515 feet Effective Depth: measured 12571 feet Packer measured 8815 feet true vertical 9009 feet Packer true vertical 8465 feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 83 20" 31-114 31-114 1533 515 Surface 2654 13-3/8" 34-2688 34-2688 5020 2260 Intermediate 6860 9-5/8" 30-6891 30-6625 6870 4760 Production Liner 3788 4-1/2" 8870-12658 8517-9018 8430 7500 Liner 2322 7" 6709-9031 6452-8672 7240 5410 pp4■ Perforation Depth: Measured depth: 9306-12480 feet RECEIVED True vertical depth: 8881-9000 feet JAN P 9 2018 Tubing(size,grade,measured and true vertical depth) 4-1/2"x3-1/2",L-80 29-8876 29-8523 G CC Packers and SSSV(type,measured and 4-1/2"Baker S-3 Perm Packer 8815 8465 true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: SCANNED •_Ai 2 3 , 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 186 405 408 1000 257 Subsequent to operation: 264 600 1378 1555 331 14.Attachments:(required per 20&Ac 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Ed Exploratory 0 Development I! Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil RI Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR 0 WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Peru,Cale Contact Name: Peru,Cale Authorized Title: Petrole Engineer Q,, Contact Email: Cale.Peru@bp.com Authorized Signature: M Date: 1 JLj '/401) ( Contact Phone: +1 9075644522 Form 10-404 Revised 04/2017 lin- //)21/ D Yj�Jf'� REDMS t)-', J.e►,1 1 1 9^18 Submit Original Only • • Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary January 8, 2018 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for the Addition of Perforations for Well Z-04A, PTD # 204-230. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 0 0 o= ® • % .e( L s _ / 6 \ / ON \ 2 ' ƒ \ / k \/ co 'k\ \ / NO30) c ± c e ••z \ ƒa, I _ 2 �cC . co f k /� ° \ . o » /\ /E k \ t cm J w E \ E » @ om m \ g O. soo a 2 CD R ƒ\ P. / G 7 N \ / f 2 IF -0 \ k CO \ \ Ca r EL / 2 2 ,-- .§ o_2 \ o E Ce CL\ co 0 �\ o < o - § 4- < a / CU C 06 -0) « 5 G \ e o a o o t Cr) D \ y / / a y / o ! / \ R \ § < ® ~ m R \ ) R / / L.,- C \ / \ / 6 0 Z ® / / \ d . Cl. 2 U ® \/ \ / / = ® c \ o \ o ® / g b m 4 = $ ° = o / f ± \ $ 2 \ / \ 7 / / O m 2 & = I t C m ± t e ± ® r--- a \ \ \ / co > \ \ co » CO G / % 0 < TREE= • WaLLHEAD= FMC FIS Z 0 4 A SATES:"`CHROME TBG& LNR WE ACTUATOR= BAKER KB.t3EV- 85.15' I , ---_____Ii 8F.ELEV= 57.47' 29' —4-1/2"X 3-1/2"XO,D=2.992" KOP= 6850" 2196' —3-1/2"IES X NP,D=2.813" Max Angle= 36 `? 10718' ' Datum MD= 9319' Datum ND= 8800'SS2 GAS LFT M MJF 3 S ST MD ND DEV TYPE VLV LATCH PORT DATE 4 1/2"TBG, 12.6#,13CR, H 29' 7 2657 2657 0 MMG DOME RK 16 08/26/05 VAM TOP,.0152 bpf, D=3.958' 6 4792 46701 28 MM3 DOME RK 5 6458 6218 21 MMG DOME RK i616 08126/08/26/0505 133/8"CSG,68#,L-80,D= 12.415"_ 2696' LU 4 7274 6983 23 KG82-9 SO NT 22 08/26/05 Minimum ID =2.$13" 2196 32 7806 74687943 2429KGB2-KGB2-99 DI.1Y NT 00 07/23/07/23/0505 8338 [)tiK NT 3-112" HES X NIPPLE 1 8712 8270 29 KGB2-9 DAY NT 0 0723/05 WFPSTOCK(07/11/06) H 6890' 6709' 9-5/8'X 7"ZXP MECHANICAL LTP w/HMC HANGER,D=6.310" EZSV(07/11/06) H 6920' 9-5/8'CSG,47#, 9164' NT-80S,D=8.681" MI.LOUT MOW/(Z-04A) 6890'-6907' �% %': •/_//r%////�\'1• 8741' 3-12"HES X PP,D=2.813" :. viii . 1 r \ �- 8761' —HES"SYP -IQNY PLUS"GAUGE CARREL 011 ♦♦VA I w/CABLES TOSURFACENIA,D-- 2.992 8803' H3-1/2"XO SUB,D=2.980' x DK 8815' H7"X4-1/2"BKRS-3RD=3.875' 8819' I--3-1/2-XO SUB,D=2.970" 3-1/2"TBG,9.2#,13CR,VAM ACE, —{ 8872' I ' 8841' H3-112"HES X NP,D=2.813" .0087 bpf,D=2.992" 7"LNR,26#,L-80,BTC-M,.0383 bpf,D=6.276" —I 9031' I ' 8861' —I 3-1/2"HES X NP,D=2.813' FERFORATION SUIMARY ` 8870' - l7"X 5"BKR HRD ZXP LTP w/HMC HGR,D=4.410' REF LOG:SW5 MDL ON 07/11ro5 I r 887r I--31/2"X 4-1/2"XO,D=2.992" ANGLE AT TOP R33F:60"©19306' I j Note:Refer to Production DB for historical pert data 8875' —14-1/2"VVL6G,ID =3.956' SIZE SW INTERVAL Opn/Sqz SHOT SQZ 8898' H5"x 4-1a'XO,D=3.900" 2-1/2" 4 9306-9371 0 11/22/11 2-1/2" 4 9396-9431 0 11/21/11 9156' H MARKER JOINT 2-1/2- 4 9445-9475 0 11/20/11 2-1/2" 6 10236-10256 0 12/07/17 2-7/8" 4 10570-10690 0 07/25/05 2-7/8" 4 10730-10840 0 07/25/05 2-7/8" 4 10900- 11070 0 07/25/05 ' 10515' -10525' --I POSSBLE BUCKLED TBG,D=-3.00"(7/1/14) 2-7/8" 4 11170- 11430 0 07/25/05 2-7/8" 4 11470- 11510 0 07/25/05 2-718" 4 11560- 11600 0 07/25/05 2-7/8" 4 11770-11980 0 07/25/05 2-7/8" 4 12050- 12170 0 07/25/05 I ? H FISH-UR SW&BLADES,D=2.125"(06/27/09) 2-7/8" 4 12450- 12480 0 07/25/05 � •�•••. 12573' --I PBTD 4-12"LNR, 12.6#,13CR-8O VAM ACE, — 12658' .0152 bpf,0=3.958" DATE REV BY COMMENTS DATE REV BY ODMMENTS F RUCHDE BAY UNIT 01/03/90 JQ ORIGINAL COMPLETION 12/16/11'/PJC ADPERFS(11/20-22/11) WELL: Z-04A 07/29/05 N7E SIDETRACK(Z-04A) 07/01/14 JCF/PJC SET HEX RUG w/S&FFS PERPAT Pb:12042300 08/25/05 KS8/TL FIGLV CYO(08/15/05) 07/01/14 JCF/PJC BUCKLE)LNER AR Pb: 50-029-21990-01 08/28/05 TRJTLH GLV CYO 09/10/14 JRP/PJC PULL FEX PLUG/GAUGES SEC 19,T11N,R12E,975'FPL&1392'FWL 03/05/0741/VS/PJC DRLG DRAFT CORRECTIONS .12/19117 JTCJJMD ADFERFS(12/07/17) 0628/10 JKCJPJC FISH(06127/09) BP Exploration(Alaska) P6u Z-04 Pm Z'¢ z,0 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) ,.e (/' 6'to\t W 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 uermit 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 w'e-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 1 2a17 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 • S State of Alaska Oil and Gas Conservation Commission Deficiency Report Location: PBU Z-04A Date: 8/8/2016 PTD: 2042300 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 inspection was performed by AOGCC,include the date and name of Inspector. Extensions for corrective actions taking longer 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 • • Wallace, Chris D (DOA) From: AK, GWO SUPT Well Integrity <AKDCWellIntegrityCoordinator@bp.com> Sent: Sunday, August 07, 2016 6:43 AM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL;AK, OPS GC2 Wellpad Lead;AK, OPS GC2 Facility OTL;Cismoski, Doug A; Daniel, Ryan;AK, RES GPB West Wells Opt Engr;AK, RES GPB East Wells Opt Engr;AK, OPS Prod Controllers;AK, OPS Well Pad Z; Peru, Cale; Zoesch, Eric; Regg,James B (DOA) Cc: AK, GWO DHD Well Integrity;AK, GWO Projects Well Integrity;AK, GWO SUPT Well Integrity;AK, OPS FF Well Ops Comp Rep;Wallace, Chris D (DOA) Subject: OPERABLE: Producer Z-04A(PTD#2042300) Passed TIFL All, Producer Z-04A(PTD#2042300) passed a Tubing Integrity Fluid Level test on 08/06/16.The passing test confirms two competent well barrier envelopes.The well is reclassified as Operable. Thanks, Adrienne McVey Well Integrity Superintendent—GWO Alaska (Alternate:Jack Lau) 0:(907)659-5102 C:(907)943-0296 SCANNED JAW 13 2012 H:2376 Email: AKDCWelllntegrityCoordinator@BP.com From: AK, GWO SUPT Well Integrity .t: Sunday, July 31, 2016 2:41 PM To: A', .• GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS GC2 Facility OTL; Cismoski, Doug A; Danie, • an; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Prod Controllers; AK, OPS Well Pad Z; •- - Cale; Zoesch, Eric; 'chris.wallace@alaska.gov' Cc: AK, GWO SUPT Well Intel '► • AK, GWO DHD Well Integrity; AK, GWO Projects Well Integrity; Pettus, Whitney; Sternicki, Oliver R; AK, OPS FF We a•s Comp Rep; 'Regg, James B (DOA) im.rea (aalaska.gov)' Subject: UNDER EVALUATION: Z-04A (•' ' #2042300) High Inner Annulus Pressure Over MOASP All, Producer Z-04A(PTD#2042300)was reported to have inner a •ulus pressure over MOASP on July 30 2016.Wellhead pressure was confirmed to be (T/IA/OA) 2290/2080/290 psi.Z pa. expected to remain shut in until mid week.The well is now reclassified as Under Evaluation and well barriers will be verifies •r repaired within 28 days. Plan Forward: 1. Operations: Put on Production 2. Downhole Diagnostics:Warm TIFL 3. Well Integrity: Further Diagnostics as Required Please call with any questions or concerns. Ryan Holt it, !e, , 1 • • Wallace, Chris D (DOA) From: AK, GWO SUPT Well Integrity <AKDCWellIntegrityCoordinator@bp.com> Sent: Sunday,July 31, 2016 2:41 PM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL;AK, OPS GC2 Wellpad Lead;AK, OPS GC2 Facility OTL; Cismoski, Doug A; Daniel, Ryan;AK, RES GPB West Wells Opt Engr;AK, RES GPB East Wells Opt Engr;AK, OPS Prod Controllers;AK, OPS Well Pad Z; Peru, Cale; Zoesch, Eric;Wallace, Chris D (DOA) Cc: AK, GWO SUPT Well Integrity;AK, GWO DHD Well Integrity;AK, GWO Projects Well Integrity; Pettus,Whitney; Sternicki, Oliver R;AK, OPS FF Well Ops Comp Rep; Regg, James B (DOA) Subject: UNDER EVALUATION:Z-04A(PTD#2042300) High Inner Annulus Pressure Over MOASP All, Producer Z-04A(PTD#2042300)was reported to have inner annulus pressure over MOASP on July 30 2016.Wellhead pressure was confirmed to be (T/IA/OA) 2290/2080/290 psi.Z pad is expected to remain shut in until mid week.The well is now reclassified as Under Evaluation and well barriers will be verified or repaired within 28 days. Plan Forward: 1. Operations: Put on Production 2. Downhole Diagnostics:Warm TIFL 3. Well Integrity: Further Diagnostics as Required Please call with any questions or concerns. Ryan Holt BP Alaska-Well Integrity GW global Wells rganization Office: 907.659.5102 SCOW OCT 3 12015 1 Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. ~~ ~- - ~~Q Well History File Identifier Organizing (done) ^ Two-sided IIIII~IIIIIIIIIIIII ^ Rescan Needed IIIII~IIIIIIIIIIfII RESCAN DIG TAL DATA OVERSIZED (Scannable) olor Items: Diskettes, No. ~ ^ Maps: ^ Greyscale Items: ^ Other, No/Type: ^ Other Items Scannable by a Large Scanner ^ Poor Quality Originals: OVERSIZED (Non-Scannable) ^ Other: ^ Logs of various kinds: NOTES: ^ Other:: BY: Maria Date: /s1 Project Proofing III IIIIII IIIII f f III BY: Maria Date: ~, ~ Q /s/ Scanning Preparation _~ x 30 = _~ + ~_ =TOTAL PAGES~CU~ L 1 ~ ~ (Count does not include cover sheet) BY: Maria Date: ow /s/ Production Scanning III II'III IIIII II III Stage 1 Page Count from Scanned File: (count does include cover sheet) Page Count Matches Number in Scanning Preparation: YES NO BY: Maria Date:~'~~//~7 /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. ReScanned III II'III IIIII II III BY: Maria Date: /s/ Comments about this file: Quality Checked III II~IfI IIIII'1lII ~v 3 10/6/2005 Well History File Cover Page.doc TE OF ALASKA ALASKA OIL AND CONSERVATION COMMISSION • REPORT OF SUNDRY WELL OPERATIONS 01 Aerations Abandon ❑ Repair Well ❑ Plug Perforations ❑ Stimulate Other ❑ Performed: Alter Casing ❑ Pull Tubing ❑ Perforate New Pool ❑ Waiver ❑ Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Perforate 0 Re -enter Suspended Well ❑ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development j0 Exploratory ❑ q- 204 -2300 3. Address: P.O. Box 196612 Stratigraphic❑ Service ❑ 6. API Number: Anchorage, AK 99519 -6612 - 50- 029 - 21990 -01 -00 8. Property Designation (Lease Number) : Li 9. Well Name and Number: ADLO- 028245 " PBU Z -04A 10. Field /Pool(s): ,. PRUDHOE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 12660 feet Plugs (measured) None feet true vertical 9017.74 feet Junk (measured) UNKNOWN feet Effective Depth measured 12573 feet Packer (measured) 6709 8815 8870 feet true vertical 9008.75 feet (true vertical) 6453 8465 8517 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 80' 20" 30 - 110 30 - 110 Surface 2667' 13 -3/8" 68# L -80 29 - 2696 29 - 2696 5020 2260 Production 6884' 9 -5/8" 47# NT80S 28 - 6912 28 - 6645 6870 4760 Liner 2322' 7" 26# L -80 6709 - 9031 6453 - 8672 7240 5410 Liner 3788' 4 -1/2" 12.6# 13CR80 8870 - 12658 8517 - 9018 8430 7500 Liner - - Perforation depth: Measured depth: SEE ATTACHED - - — — True Vertical depth: — — _ ' ` Tubing: (size, grade, measured and true vertical depth) 4 -1/2" 12.6# 13Cr80 26 - 60 26 - 60 3 -1/2" 9.2# 13Cr80 60 - 8875 60 - 8522 Packers and SSSV (type, measured and true vertical depth) 7" Baker ZXP Mech Top Packer 6709 6453 4 -1/2" Baker S -3 Perm Packer 8815 8465 5" Baker ZXP Top Packer 8870 8517 RECEIVED • 12. Stimulation or cement squeeze summary: r , Intervals treated (measured): �? �' I Treatment descriptions including volumes used and final pressure: Ateska Oil & Gas Cols. Commission 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing pressure Prior to well operation: 458 2242 98 256 Subsequent to operation: 2852 7941 151 304 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development 0 0 Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil . 0 Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAGE 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.O. Exempt: NA Contact Joe Lastufka Printed Nam- Joe Last fk -Alik Title Petrotechnical Data Technologist IN C Signatu - k Phone 564 -4091 Date 12/14/2011 Form 10 -404 Revised 10 /2ADMS DEC 16 2011 /Z */, .!r Submit Original Only Z-04A . 204 -230 PERF ATTACHMENT Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base Z -04A 7/25/05 PER 10,570. 10,690. 8,919.24 8,908.57 Z -04A 7/25/05 PER 12,450. 12,480. 8,997.35 8,999.76 Z-04A 7/25/05 PER 12,050. 12,170. 8,956.14 8,969.02 Z-04A 7/25/05 PER 11,770. 11,980. 8,927.52 8,949.21 Z -04A 7/25/05 PER 11,560. 11,600. 8,906.3 8,909.57 Z -04A 7/25/05 PER 11,170. 11,430. 8,881.68 8,894.9 Z -04A 7/25/05 PER 10,900. 11,070. 8,888.39 8,880.34 Z -04A 7/25/05 PER 10,730. 10,840. 8,904.61 8,893.91 Z -04A 7/25/05 PER 11,470. 11,510. 8,898.88 8,902.31 Z -04A 11/20/11 APF 9,445. 9,475. 8,940.38 8,950.34 Z -04A 11/21/11 APF 9,396. 9,431. 8,921.7 8,935.34 Z -04A 11/22/11 APF 9,306. 9,371. 8,880.71 8,911.05 AB ABANDONED PER PERF APF ADD PERF RPF REPERF • BPP BRIDGE PLUG PULLED _ 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 -04A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 11/20/2011 = ** *WELL SHUT IN ON ARRIVAL * * *E -LINE PERFORATION INITIAL T /I /O= 1000/600/350 PERFORATE FROM 9445 -9475 WITH 2.5" PJ HSD 'API INFO PEN = 18.7" EH =.34" LAY EQUIPMENT DOWN FOR NIGHT, NOTIFY DSO OF VALVE POSITIONS ;SWAB =C, MASTER =O, IA/OA =OTG, WING =C, SSV =C FINAL T /I /0= 1750/600/350 ** *JOB IN PROGRESS CONTINUED ON 21 -NOV- 2011 * ** 11/21/2011' ** *JOB CONTINUED FROM 20- NOV- 2011L * * *(E -LINE ADPERF) INITIAL T /I /O= 2200/600/350PSI ,PERFORATE FROM 9396' -9431 WITH 2.5" POWERJET HMX 4SPF 60DEG PHASING HSD API INFO PEN = 18.7" EH =.34" (TIE IN LOG SLB MDL VISION DATED JULY11, 2005) }LAY EQUIPMENT DOWN FOR NIGHT, NOTIFY DSO OF VALVE POSITIONS ,SWAB =C, MASTER =O, IA/OA=OTG, WING =C, SSV =C FINAL T/I/0= 2250/600/300PSI !***JOB IN PROGRESS CONTINUED ON 21 -NOV- 2011 * ** 11/22/2011 ,***JOB CONTINUED FROM 21 -NOV- 2011 * * *(E -LINE ADPERF) ;INITIAL TWO = 2200/600/350 PSI PERFORATE FROM 9351'- 9371', 9331'- 9351', 9316'- 9331', 9306' -9316' WITH 2.5" ? POWERJET HMX 4SPF 60DEG PHASING HSD GUNS API INFO PEN = 18.7" EH =.34" (TIE IN LOG SLB MDL VISION DATED JULY 11, 2005) FINAL T /I /O = 2230/600/300 PSI ** *JOB IN PROGRESS AND CONTINUED ON 23 -NOV- 2011 * ** 11/23/2011, JOB CONTINUED FROM 22 -NOV -2011 (E -LINE PERFORATING) ' INTIAL TWO = 2230/600/300 PSI 'CONTINUE TO POOH. REACH SURFACE AND RIG DOWN. SWAB = C, SSV = 0, MASTER = 0, WING = C `FINAL TWO = 2230/600/300 PSI ** *JOB COMPLETE. NOTIFY DSO. SHUT IN UPON DEPARTURE * ** FLUIDS PUMPED BBLS 3 DIESEL 3 TOTAL TREE _ FMC 4 � I WELLHEAD = FMC PIO SAFEIY NOTES: ***CHIDE TBG &LNR - ACTUATOR = , BAKER KB. ELEV = 85.15' BF.ELEV= 57.47' J KOP 6850" I 29' I X 3 XO, ID = 2.992" 1 Max Angle = 96 @ 10718' Datum MD = 9319' Datum TV D = 8800' SS ' ' 1 2196' H3-1/2" HES X NIP, ID = 2.813" 1 4 -1/2" TBG, 12.6 #, 13CR, —I 29' 1:/ VAM TOP, .0152 bpf, ID = 3.958" GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 7 2657 2657 0 MMG DOME RK 16 08/26/05 1 13 -3/8' CSG, 68 #, L -80, ID = 12.415" 1 1 2696' ED 6 4792 4701 28 MMG DOME RK 16 08/26/05 5 6458 6218 21 MMG DOME RK 16 08/26/05 4 7274 6983 23 KGB2 -9 SO NT 22 08/26/05 3 7806 7468 24 KGB2 -9 DMY NT 0 07/23/05 2 8338 7943 29 KGB2 -9 DMY NT 0 07/23/05 1WHIPSTOCK (07/11/06) I — I 6890' 1 _8712 8270 29 KGB2 -9 DMY NT 0 07/23/05 1EZSV (07/11/06) H 6920' 6709' I--' 9 -5/8" X 7 "ZXP MECHANICAL LTP w / HMC HANGER, ID = 6.310" 13-1/2" TBG STUB (07/11/05) 1-1 7215' 9-5/8" CSG, 47 #, — 9164' MILLOUT WINDOW (Z -04A) 6890' 6907 NT -80S, ID = 8.681" , ; . , ` . � Z 8741' H 3 -1 /2" HES X NIP, ID = 2.813" 1 "" 8761' I — HES "SYMPHONY PLUS" GAUGE CARRIER .: ZZ • III 'IWO' w /CABLES TO SURFACE IN IA, ID = 2.992" AP ■ .. .• 8803 —1 3 -1/2 xo SUB, ID = 2.98o° x 1 8815' H 7" X 4 -1/2" BKR S -3 PKR, ID = 3.875" I Minimum ID (Z -04A) = 2.813" @ 2196' I 8819' I I3 -1/2" xo suB, ID = 2.970" I 3-1/2" HES X NIPPLE 8841' I - /2" HES X NIP, ID = 2.813" ( II 8861' — 13 - 1/2" HES X NIP, ID = 2.813" 1 3 -1/2" TBG, 9.2 #, 13CR, VAM ACE, — 8872' 1 8870' , — 7 "X 5" BKR HRD ZXP LTP .0087 bpf, ID = 2.992" w /HMCLNRHGR, ID= 4.410" 17" LNR, 26 #, L -80, BTC-M, .0383 bpf, ID = 6.276" 1-1 9031' 8872' , 1 /2" X 4-1/2" XO, ID = 2.992" 8875' I — I4 - 1/2" WLEG, ID = 3.958" I PERFORATION SUMMARY REF LOG: SWS MDL ON 07/11/05 8898' I — I 5" X 4-1/2" XO, ID = 3.900" ANGLE AT TOP PERF: 31 @ 10570' Note: Refer to Production DB for historical perf data 9 1 9156' 1 - 1 MARKER JOINT I SIZE' SPF 1 INTERVAL 1 Opn /Sqz I DATE SEE PAGE 2 FOR PERFORATION DETAILS 1 ? I—I FISH - UR SUB & BLADES, ID = 2.125" (06/27/09) 1 1 1 1 IPBTD 1-1 12573' I t •• • • 4 4 -1/2" LNR, 12.6 #, 13CR -80, — 12658' • • • • j • * 4 1 VAM ACE, .0152 bpf, ID = 3.960" • ... DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/03/90 JQ ORIGINAL COMPLETION WELL: Z -04A 07/29/05 N7ES SIDETRACK (Z -04A) PERMIT No: P O42300 08/25/05 KSB /TLH GLV C/O (08/15/05) API No: 50 -029- 21990 -01 08/28/05 TEL/TLH GLV C/O SEC 19, T11 N, R12E, 975' FNL & 1392' FWL 03/05/07 MWS /PJC DRLG DRAFT CORRECTIONS 06/28/10 JKC/PJC FISH (06/27/09) BP Exploration (Alaska) SAFETY NOTES: * * *CF E TBG & LNR 1 1 1 1 wwiriwrrw. �iwww 1 1 wrrrw = \ iiww�r� ,. \ PERFORATION SUMMARY REF LOG: SWS MDL ON 07/11/05 ANGLE AT TOP PERF: 31 @ 10570' Note: Refer to Production DB for historical pert data 1 1 SIZE SPF INTERVAL Opn /Sqz DATE 2 -7/8" 4 10570 - 10690 0 07/25/05 2 -7/8" 4 10730 - 10840 0 07/25/05 2 -7/8" 4 10900 - 11070 0 07/25/05 r 1 2 -7/8" 4 11170 - 11430 0 07/25/05 2 -7/8" 4 11470 - 11510 0 07/25/05 4 • 2 -7/8" 4 11560 - 11600 0 07/25/05 2 -7/8" 4 11770 - 11980 0 07/25/05 2 -7/8" 4 12050 - 12170 0 07/25/05 2 -7/8" 4 12450 - 12480 0 07/25/05 • •••• •••• •' ••�•�•• DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/03/90 JQ ORIGINAL COMPLETION WELL: Z -04A 07/29/05 N7ES SIDETRACK (Z -04A) PERMIT No: 2042300 08/25/05 KSB/TLH GLV C/0 (08/15/05) API No: 50- 029 - 21990 -01 08/28/05 TEL/TLH GLV C/O SEC 19, T11 N, R12E, 975' FNL & 1392' FWL 03/05/07 MWS /PJC DRLG DRAFT CORRECTIONS 06/28/10 JKC/PJC FISH (06/27/09) BP Exploration (Alaska) o ID ID vsr.lir w 9 g E CV o 0h . . _ _ co �c ,o © _ � �■ .,v k q .. 0c «j o- = '2 ®� & / d7 / kk6k5 0 k ( a « � U u 3 / a) .5JK22 © = R . . . . ] E a m in / 0 \ 2 \ ) o @k m - - - - - 3 gi 00000 »■■ 0 JI,222m, W{ C o &§ tra : 0r. % ga o0 = LIJ X 0 Z 0 0 -I 00 0 tit co z �� � § iHI2 0.o § meow o§§ w -§ 3w I-c>im w000Y " b rg a4 Q.0. q $ 0.O. Z¢ § . . rew $ is ■■ NR� ae, ■ \ ,1 $ 48144 m 2 MmMmCMBm C . - _ Of w _ / s , no - �ui ? § 0 cow el,_ hIt s « W529« Mr. % ƒ) CO i CO 122 kf � \ co ■ auE c) . 22 ■ WOW J § JE ab � a STATE OF ALASKA • ALASKA AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ❑ Repair Well ❑ Plug Perforations ❑ Stimulate Other 0 MUD ACID STIM Performed: Alter Casing ❑ Pull Tubing ❑ Perforate New Pool ❑ Waiver Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Perforate ❑ Re -enter Suspended Well ❑ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development 0 Exploratory ❑ -/ 204 -2300 3. Address: P.O. Box 196612 Stratigraphic Service ❑ 6. API Number: Anchorage, AK 99519 -6612 4 50- 029 - 21990 -01 -00 8. Property Designation (Lease Number) : 9. Well Name and Number: .- ADLO- 028245 „ PBU Z -04A 10. Field /Pool(s): w PRUDHOE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 12660 feet Plugs (measured) None feet true vertical 9017.74 feet Junk (measured) UNKNOWN feet Effective Depth measured 12573 feet Packer (measured) 6709 8815 8870 feet true vertical 9008.75 feet (true vertical) 6453 8465 8517 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 80' 20" 30 - 110 30 - 110 Surface 2667' 13 -3/8" 68# L -80 29 - 2696 29 - 2696 5020 2260 Production 6884' 9 -5/8" 47# NT8OS 28 - 6912 28 - 6645 6870 4760 Liner 2322' 7" 26# L -80 6709 - 9031 6453 - 8672 7240 5410 Liner 3788' 4 -1/2" 12.6# 13CR80 8870 - 12658 8517 - 9018 8430 7500 Liner Perforation depth: Measured depth: SEE ATTACHED - _ True Vertical depth: _ A � ,� ' _ Tubing: (size, grade, measured and true vertical depth) 4 -1/2" 12.6 # 26 - 60 26 - 60 3-1/2" 9.2# 13Cr80 60 - 8875 60 - 8522 Packers and SSSV (type, measured and true vertical depth) 7" Baker ZXP Mech Top Packer 6709 6453 4 -1/2" Baker S -3 Perm Packer 8815 8465 5" Baker ZXP Top Packer tt,,- d „` 8517 12. Stimulation or cement squeeze summary: MAY 19 2011 Intervals treated (measured): p Treatment descriptions including volumes used and final pressure: � s ; I & �+ rl ss , AnCfleratga 13. Representative Daily Average Production or Injection Data i Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing pressure Prior to well operation: 330 2209 0 293 Subsequent to operation: 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development 0' Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil - ISI Gas ❑ WDSPL ❑ 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.O. Exempt: NA Contact Joe Lastufk Printed Na - .e Lastu i I1 I Title Petrotechnical Data Technologist Signatur: `a,'' Phone 564 -4091 Date 5/19/2011 Form 10-404 Revised 10/2010 -yin MAY 2 0 6 .1.°)-7 M . Submit Original Only Z-04A 204 -230 PERF ATTACHMENT Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base Z -04A 7/25/05 PER 10,570. 10,690. 8,919.24 8,908.57 Z -04A 7/25/05 PER 10,730. 10,840. 8,904.61 8,893.91 Z -04A 7/25/05 PER 10,900. 11,070. 8,888.39 8,880.34 Z -04A 7/25/05 PER 11,170. 11,430. 8,881.68 8,894.9 Z -04A 7/25/05 PER 11,470. 11,510. 8,898.88 8,902.31 Z -04A 7/25/05 PER 11,560. 11,600. 8,906.3 8,909.57 Z -04A 7/25/05 PER 11,770. 11,980. 8,927.52 8,949.21 Z -04A 7/25/05 PER 12,050. 12,170. 8,956.14 8,969.02 Z -04A 7/25/05 PER 12,450. 12,480. 8,997.35 8,999.76 AB ABANDONED PER PERF APF ADD PERF RPF REPERF • BPP BRIDGE PLUG PULLED 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 • 1 • • Z -04A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY wiympag 5/9/2011 T /I /O = 1200/250/340. Bullhead Mud Acid Stim. MIRU DS pumpers. PJSM. PT. Start down tubing: 20 BBLs F103 overflush, 45 BBLs 12% HCI, 40 BBLs mud acid, 75 BBLs F103 overflush; 15 BBLs wax beads, 10 BBLs F103 spacer, 45 BBLs 12% HCI, 50 BBLs mud acid, 75 BBLs F103 overflush; 10 BBLs wax beads, 10 BBLs F103 spacer, 50 BBLs 12% HCI, 53 BBLs mud acid, 148 BBLs F103 overflush /displacement. Returned well to ASRC test unit for flowback. Final T /I /O = 100/700/375 5/15/2011 ASRC Test unit #2, complete acid flow back, shut in well, RDMO **job complete** '**inlet well Z -04, outlet Z -108 ** FLUIDS PUMPED BBLS 338 3% NH4CL + 0.2% F103 140 12% HCL 143 9:1 MUD ACID + 5% U067 MUTUAL SOLVENT 25 500# DS WAX BEADS IN 1% OIL SEEKER 646 TOTAL TREE = - _ FMC WELLHEAD= FMC • Z -04A I SAFETY NOTO* *CHROME TBG &LNR I ACTUATOR = BAKER _KB. ELEV = 85.15' BF. ELEV = 57.47' IA J KOP = 6850" I 29' H 4-1/2" X 3-1/2" XO, ID = 2.992" 1 _MaxAngle= 96 @10718' Datum MD = 9319' Datum TVD = 8800' SS 1 1 I 2196' H 3 -1 /2" HES X NIP, ID = 2.813" I 4 -1/2" TBG, 12.6 #, 13CR, -I 29' GAS LIFT MANDRELS VAM TOP, .0152 bpf, ID = 3.958" ST MD TVD DEV TYPE VLV LATCH PORT DATE 7 2657 2657 0 MMG DOME RK 16 08/26/05 13 -3/8" CSG, 68 #, L -80, ID = 12.415" I-I 2696' 6 4792 4701 28 MMG DOME RK 16 08/26/05 5 6458 6218 21 MMG DOME RK 16 08/26/05 4 7274 6983 23 KGB2 -9 SO NT 22 08/26/05 3 7806 7468 24 KGB2 -9 DMY INT 0 07/23/05 2 8338 7943 29 KG82 -9 DMY INT 0 07/23/05 'WHIPSTOCK (07/11/06) 1-I 6890' 1 8712 8270 29 KGB2 -9_ DMY NT 0 07/23/05 1EZSV (07/11/06) H 6920' 6709' I- 9 -5/8" X 7 "ZXP MECHANICAL LTP w / HMC HANGER, ID = 6.310" I3 -1/2" TBG STUB (07/11/05) 1-1 7215' ' 9 -5/8" CSG, 47 #, 9164' MILLOUT WINDOW (Z -04A) 6890' - 6907' NT -80S, ID = 8.681" `. 8741' 1-13 -1/2" HES X NIP, ID = 2.813" 1 i ilia • N � ........... 8761' 11 HES "SYMPHONY PS" GAUGE CARRIER �� PLUS" / CABLES TO SURFACE IN IA, ID = 2.992" ■ v° 8$03 — I3 -1/2 XO SUB, ID = 2.980" I X 1 8815' J-17" X 4 -1/2" BKR S -3 PKR, ID = 3.875" 1 I Minimum ID (Z -04A) = 2.813" @ 2196' i 8819' I-- I3 - 1/2" XO SUB, ID = 2.970" 3 -1/2" HES X NIPPLE 8841' 1-I 3 -1/2" HES X NIP, ID = 2.813" 1 1 8861' 1-13-1/2" HES X NIP, ID = 2.813" 1 3 -1/2" TBG, 9.2 #, 13CR, VAM ACE, H 8872' 1 8870 7 "X 5" BKR HRD ZXP LTP .0087 bpf, ID = 2.992" w /HMC LNR HGR, ID= 4.410" 17" LNR, 26 #, L -80, BTC-M, .0383 bpf, ID = 6.276" 1-1 9031' 8872' I--I3 -1/2" X 4 -1/2" XO, ID = 2.992" 1 A 8875' 1-14 -1/2" WLEG, ID = 3.958" 1 PERFORATION SUMMARY REF LOG: SWS MDL ON 07/11/05 8898' 1-1 5" X 4 -1/2" XO, ID = 3.900" ANGLE AT TOP PERF: 31 @ 10570' Note: Refer to Production DB for historical perf data • I 9156' H MARKER JOINT 1 SIZE' SPF ( INTERVAL 1 Opn /Sqz 1 DATE SEE PAGE 2 FOR PERFORATION DETAILS Ilibe 1 ? f-1 FISH - UR SUB & BLADES, ID = 2.125" (06/27/09) 1 1 1 1 1FBTD H 12573' ∎OO 4 4 -1/2" LNR, 12.6 #, 13CR -80, 12658' •�•• : : :: •�■ • �� •. VAM ACE, .0152 bpf, ID = 3.960" � � �� � DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/03/90 JQ ORIGINAL COMPLETION WELL: Z -04A 07/29/05 N7ES SIDETRACK (Z -04A) PERMIT No: l' 042300 08/25/05 KSB /TLH GLV C/O (08/15/05) API No: 50- 029 - 21990 -01 08/28/05 TEL/TLH GLV C/O SEC 19, T11 N, R12E, 975' FNL & 1392' FWL 03/05/07 MWS /PJC DRLG DRAFT CORRECTIONS 06/28/10 JKC/PJC FISH (06/27/09) BP Exploration (Alaska) • SAFETY NO• ** *CHROME TBG & LNR Z -04A l J 11 1 I pl �iiffiffilf. •� 1 1 vAl vAL 10, �1fiflf•, PERFORATION SUMMARY ' ' REF LOG: SWS MDL ON 07/11/05 ANGLE AT TOP PERF :31 @ 10570' Note: Refer to Production DB for historical perf data ' ' SIZE SPF INTERVAL Opn /Sqz DATE 2 -7/8" 4 10570 - 10690 0 07/25/05 2 -7/8" 4 10730 - 10840 0 07/25/05 2 -7/8" 4 10900 - 11070 0 07/25/05 I 2 -7/8" 4 11170 - 11430 0 07/25/05 2 -7/8" 4 11470 - 11510 0 07/25/05 • • 2 -7/8" 4 11560 - 11600 0 07/25/05 2 -7/8" 4 11770 - 11980 0 07/25/05 2 -7/8" 4 12050 - 12170 0 07/25/05 2 -7/8" 4 12450 - 12480 0 07/25/05 • i •i�i�i i • Di�i i DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/03/90 JQ ORIGINAL COMPLETION WELL: Z - 04A 07/29/05 N7ES SIDETRACK (Z -04A) PERMIT No: " 08/25/05 KSB/TLH GLV C/0 (08/15/05) API No: 50- 029 - 21990 -01 08/28/05 TEL/TLH GLV C/O SEC 19, T11 N, R12E, 975' FNL & 1392' FWL 03/05/07 MWS /PJC DRLG DRAFT CORRECTIONS 06/28/10 JKC/PJC FISH (06/27/09) BP Exploration (Alaska) C~ BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 August 14, 2009 ~,. ~~~,~,~~ r~tir, t ~ ~ ~~~~ 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, • bp ~.,~~~~~~E~ OCT 0 5 2009 ~las~C~ Dil ~a Gas Cons. Gor~nu~Ripn~ Anchorap~ ~~~.- °2v ~ ` ~ `f 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, Well Integrity 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-OtB 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 7/2M2009 Z-04A 2042300 50029219900100 NA 1.5 NA t4.50 7/2M2009 Z-05 1900780 50029220560000 NA 1 NA 8.50 7/24/2009 Z-06 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-O9A 2081410 50029219670100 NA 0.2 NA 1.70 7/24/2009 Z-10 1891160 50029219860000 NA 1.3 NA 11.10 7/24/2009 Z-11A 2050310 50029220530100 NA 02 NA 1.70 7/26/2009 Z-12 1891020 50029219770000 NA 1.2 NA 8.50 7/26/2009 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-t5 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-21A 2001010 50029219380100 NA 0.2 NA 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 50029219t70000 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 50029218790W0 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 50029218710000 NA 0.3 NA 3.40 7/26/2009 Z-326L1 1970350 50029219246000 NA 0.2 NA 1.70 7/25/2009 Z-33A 1890050 50029218950100 NA 0.5 NA 3.40 S/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-t00 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 1020 7/25/2009 Z-t08 2052010 50029232920000 NA 1.5 NA 11.90 7/24/2009 z-112 2071720 50029233800000 NA surface NA • • w_ .~~*_ .~~: ; - MICROFILMED 03/0112008 DO NOT .PLACE ANY NEW MATERIAL UNDER THIS PAGE F:\LaserFiche\CWrPgs_Inscrts\Microfilm NZarker.doc ~. ~ ~~ DATA SUBMITTAL COMPLIANCE REPORT 7/19/2007 Permit to Drill 2042300 Well Name/No. PRUDHOE BAY UNIT Z-04A Operator BP EXPLORATION (ALASKA) INC API No. 50-029-21990-01-00 MD 12660 TVD 9018 Completion Date 7/27/2005 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION / Mud Log No Samples No Directional Survey Yes / DATA INFORMATION Types Electric or Other Logs Run: MWD DIR / GR /RES / PWD /DDS, MWD DIR / GR /RES !DEN / N (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Da Digital Dataset Log Log Run Interval OH / Tye Med/Frmt Number Name Scale Media No Start Stop CH Received Comments D D Asc Directional Survey 6839 12660 8/22/2005 R pt Directional Survey 6839 12660 8/22/2005 // rED C Lis 14536 InductionlResistivity 6866 12659 Open 3/22/2007 LIS Veri, GR, ROP, DRHO, NPHI, FET f'L og 14536 Induction!Resistivity 25 Blu 6890 12660 Open 3/22/2007 MD Vision Service I / /Log 14536 Induction!Resistivity 25 Blu 6890 12660 Open 3/22/2007 TVD Vision Service Well Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments ADDITIONAL INFORMATION N Well Cored? i ~1~+ Daily History Received? Chips Received? "Y7 N Formation Tops Analysis ~4T1~ Received? Comments: Compliance Reviewed By: ~"'~ Date: ~ 3 y d~ ~7 03/13/2007 Schlumb~rger Alaska data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth WPII _Inh i! ~~~~~ ~~~ ~~~iS~~ ~ .... n.. ..a:.. NO.4177 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnkeri 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Z-04A 40012158 OH EDIT MWD/LWD 07/21/05 2 1 P2-43 10942271 MGNL 04/29/05 1 01-28 11630448 RST 01114/07 1 1 D-16 11533390 RST 12/29/06 1 1 D-28AL1 11216183 MCNL 03121/06 1 1 01-20 11513651 RST 11/26/06 1 1 B-O6 11226015 RST 11/01106 1 1 02-20 11496876 RST 11/24/06 1 1 __. .__ .._........~~........~... . ... vww~.v env ,.G ~ v1~~.uw VnG liVr ~ CHVn ~ v: BP Exploration (Alaska) Inc. , _-_~ ,~, ~.~ -,,~ Petrotechnical Data Center LR2-1 -~ ~~~ ~" ! , 900 E. Benson Blvd. Anchorage, Alaska 99508 s ~1 Date Delivered: ~~f/~~° '~ !~ ~j~~~~f t~ %'.: .. _~ Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 1 Anchorage, AK 99503-2838 ATTN: Beth r~ Received by: ~ ' u L~ ~ ~~ STATE OF ALASKA ALASK~L AND GAS CONSERVATION COM ~SION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended ^ WAG 1b. Well Class: 20AAC 25.105 20AAC 25.110 ® Development ^ Exploa~atory ^ GINJ ^ WINJ ^ WDSPL No. of Completions One Other ^ Stratigraphic ^ Service 2. Operator Name: 5. Date Comp., Susp., or Aband. 12. Permit to Drill Number BP Exploration (Alaska) Inc. 7/27/2005 2fl4-230 3. Address: 6. Date Spudded 13. API Number P.O. Box 196612, Anchorage, Alaska 99519-6612 7/13/2005 50-029-21990-01-00 4a. Location of Well (Governmental Section): 7. Date T.D. Reached 14. Well Name and Number: Surface: 975' SN ' W S 7/21/2005 PBU Z-04A L, 3561 EL, EC. 19, T11 N, R12E, UM Top of Productive Horizon: g. KB Elevation (ft): 15. Field /Pool(s): 1038' SNL 614' WEL SEC T11N 24 R11E UM 86• Prudhoe Bay Field / Prudhoe Bay , , . , , , Pool Total Depth: 9. Plug Back Depth (MD+TVD) 423' SNL, 3692' W EL, SEC. 24, T11 N, R11 E, UM 12571 + 9009 Ft 4b. Location of Well (State Base Plane Coordinates): 10. Total Depth (MD+TVD) 16. Property Designation: Surface: x- 59911 6 y- 5959100 Zone- ASP4 12660 + 9018 Ft ADL 028245 _ __ __ __ __ TPI: x- 597111 5959011 Zone- ASP4 y- 11. Depth where SSSV set 17. Land Use Permit: _ _ Total Depth: x- 594025 y- 5959587 Zone- ASP4 (Nipple) 2196' MD -- 19. Water depth, if offshore 20. Thickness of Permafrost 18. Directional Survey ®Yes ^ No N/A MSL 1900' (Approx.) 21. Logs Run: MWD DIR / GR /RES / PWD /DDS, MWD DIR / GR /RES /DEN / NEU 2. CASING, LINER AND EMENTING RECORD CASING ETTING EPTH MD ETTING EPTH TVD HOLE 'AMOUNT SIZE WT. PER FT. GRADE OP TTOM OP - OTTOM SIZE CEMENTING RECORD PULLED. 20" Conductor Surface 110' Surface 110' 13-3/8" 68# L-80 Surface 2696' Surface 2696' 17-1/2" 3723 cu ft Permafrost 9-5/8" 47# NT80S Surface 6912' Surface 6645' 12-1/4" 1863 cu ft Class'G' 7" 26# L-80 6707' 9029' 6451' 8670' 8-1/2" 94 cu ft Class 'G' 4-1/2" 12.6# L-80 / 8869' 12657' 8516' 9017' 6-1/8" 528 cu ft Class'G' 23. Perforations open to Produc tion (MD + TV D of Top and ' " 24. TUBING RECORD Bottom Interval, Size and Number; if none, state none ): SIZE DEPTH SET (MD) PACKER SET (MD) 2-1/2" Gun Diameter, 4 spf 3-1/2", 9.2#, 13Cr80 8875' 8815' MD TVD MD TVD 10570' - 10690' 8919' - 8909' ' ' ' ' 25. ACID FRACTURE CEMENT SQUEEZE ETC. 10730 - 10840 8905 - 8894 , , , 10900' - 11070' 8888' - 8880' 11170' - 11430' 8882' - 8895' DEPTH INTERVAL MD AMOUNT & KIND OF MATERIAL USED 11470' - 11510' 8899' - 8902' Freeze Protected with 155 Bbls of Diesel 11560' -11600' 8906' - 8910' 11770' - 11980' 8928' - 8949' 12050' - 12170' 8956' - 8969' ' ' ' ' 12450 - 12480 8997 - 9000 26• PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): August 16, 2005 Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE GAS-OIL RATIO 8/22/2005 12 TEST PERIOD ~ 1,131 959 232 176 848 Flow Tubing Casing Pressure CALCULATED E OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-API (CORK) Press. 30 1,260 24-HOUR RAT 2,261 1,917 463 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". l 0~ Nor _ ,~- t .~ ~~s 6aF~„ ~E"~ ~ ~ Z~~rJ ^ ~~~~ Form 10-407 Revised 12/2003 CONTINUED ON REVERSE SIDE ~~ 28' GEOLOGIC MARKERS. 29. FORMATION TESTS Include and briefly summarize test results. List intervals tested, NAME MD TVD and attach detailed supporting data as necessary. If no tests were conducted, state "None". Kuparuk C 6879' 6614' None Kuparuk B 6933' 6665' Kuparuk A 6956' 6686' Miluveach 7027' 6752' Kingak 7750' 7443' Sag River 9033' 8674' Shublik A 9057' 8696' Shublik B 9122' 8755' Shublik C 9146' 8775' Shublik D 9172' 8796' Eileen 9185' 8805' Sadlerochit 9241' 8844' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed / ~ Title Technical Assistant Date D~~a~ Terrie Hubble PBU Z-04A 204-230 Prepared 8y Name/Number.~ Terrie Nubble, 564-4628 Well Number Permit No. / A rOVal No. Drilling Engineer: Ken Allen, 564-4366 INSTRUCTIONS GeNeRn~: 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. Irene 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 Printed: 8/1/2005 2:42:21 PM BP Exploration Operations Summary Report Page 1 of 8 Legal Well Name: Z-04 Common Well Name: Z-04 Spud Date: 12/12/1989 Event Name: REENTER+COMPLETE Start: 7/8/2005 End: 7/27/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/27/2005 Rig Name: NABOBS 7ES Rig Number: ,, ~ i Date From - To Hours Task Code ; NPT Phase Description of Operations 7/8/2005 04:00 - 00:00 20.00 MOB P 04:00 - 00:00 20.00 MOB P 7/9/2005 00:00 - 12:00 12.00 MOB P 12:00 - 14:30 2.50 MOB P 14:30 - 19:00 4,50 RIGU P 19:00 - 21:00 21:00 - 22:00 22:00 - 00:00 7/10/2005 00:00 - 02:30 02:30 - 03:30 03:30 - 05:15 05:15 - 07:45 07:45 - 08:45 08:45 - 12:30 2,00 WHSUR P 1.00 WHSUR P 2.00 KILL P 2.50 KILL P 1.00 DHB P 1.75 WHSUR P 2.50 WHSUR P 1.00 WHSUR P 3.75 WHSUR P 12:30 - 13:30 13:30 - 17:00 17:00 - 18:00 18:00 - 19:00 19:00 - 20:30 20:30 - 22:00 22:00 - 00:00 7/11/2005 00:00 - 01:15 01:15 - 01:45 01:45 - 06:30 06:30 - 08:00 08:00 - 09:30 09:30 - 11:30 11:30 - 14:30 14:30 - 15:30 1.00 WHSUR P 3.50 WHSUR N 1.00 WHSUR P 1.00 PULL P 1.50 PULL P 1.50 PULL P 2.00 PULL P 1.251 PULL I P 0.50 PULL P 4.75 PULL P 1.50 BOPSU P PRE Rig down and prepare to move rig to Z-04A. Move off well and off the pad to access road. Move mats around rig to Spine road. Lay mats on Spine road and Z pad. Road conditions slowing rig move. PRE Rig down and prepare to move rig to Z-04A. Move off well and off the pad to access road. Move mats around rig to Spine road. Lay mats on Spine road and Z pad. Road conditions slowing rig move. PRE Place rig mats on S pad access road, Z pad access road and Spine road. Move rig to Z pad. PRE Move over Z-04 and level up. Raise derrick. PRE Rig up on Z-04. Position pit module and connect lines. Take on seawater. Accept rig («? 19:00. DECOMP Rig up lines to tree to circulate seawater to kill well. DECOMP Rig up and lubricate BPV from well. DECOMP Circulate wellbore down tubing to 506 bbl 8.4 ppg hot seawater with 2 bbl Drilling Detergent ahead. Recover 157 bbl diesel. Pump 3 bpm with 400 psi. DECOMP Circulate hot seawater down the tubing surface to surface 3 bpm at 400 psi. Monitor well. Static. DECOMP Install TWC and test to 1000 psi by pumping down annulus. Blow down lines. DECOMP Nipple down tree. Check threads in tubing hanger (TDS) and confirm lift threads make up turns. Plug control lines. DECOMP NU BOP. DECOMP RU for BOP test. DECOMP BOP test 250 psi low, 3500 psi high. Annular preventer leaking. DECOMP Rig down test equipment RREP DECOMP Replace 18-5/8" element in annular unit. DECOMP Test annular unit 250 psi low, 3500 psi high. DECOMP RD test equipment. RU to pull tubing hanger. DECOMP Back out lock down screws. Unseat hanger and pull 85K up to free hanger. PU 4' and pull 130K up to free tubing. When tubing free up wt. 85K. DECOMP Circulate bottoms up w/8.4# seawater (~ 6 bpm, 530 psi. DECOMP Pull and LD 3-1/2" tbg. and spool control line. Recovered all 33 clamps and all 4 stainless bands. DECOMP Pull and lay down 3.5" tubing and spoof control line to jt. 66. Recover all 33 clamps and 4 stainless bands. DECOMP Disconnect control line and LD SSSV. RD spooling unit. DECOMP Pull rest of tubing to jt 232. Stub = 16.25'. DECOMP Clear floor and RU and test bottom rams to 250 psi low, 3500 psi high to complete BOP test. AOGCC rep John Crisp previously waived test. WSL Duncan Ferguson witnessed test. 1.50 DHB P DECOMP PJSM w/Schlumberger/Halliburton/all hands and RU wireline unit. 2.00 DHB P DECOMP RIH with 8.5" gage ring, junk basket, CCL and GR. Tag 3 1/2" tubing stub at 7215' wireline measurement and POH. 3.00 DHB P DECOMP PU firing head and EZSV. RIH with CCL GR to 6920' and set EZSV. POH. 1.00 DHB P DECOMP LD wireline tool and RD wireline unit. Printed: 8/1/2005 2:42:27 PM BP Exploration Operations Summary Report Page 2 of 8 Legal Well Name: Z-04 Common Well Name: Z-04 Spud Date: 12/12/1989 Event Name: REENTER+COMPLETE Start: 7/8/2005 End: 7/27/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/27/2005 Rig Name: NABOBS 7ES Rig Number: i i Date ~ From - To .Hours Task Code NPT ; Phase Description of Operations 7/11/2005 15:30 - 16:30 1.00 DHB P DECOMP Pressure test casing 6920' to surface 3500 psi and hold for 30 min. 16:30 - 17:30 1.00 DHB P DECOMP Install wear bushing. 17:30 - 19:30 2.00 STWHIP P WEXIT PU and orient whipstock BHA with 8 1/2" mill and MWD. 19:30 - 20:00 0.50 STWHIP P WEXIT Service top drive and rig. 20:00 - 22:00 2.00 STWHIP P WEXIT PU and RIH w/ HWDP, 6-3/4" drill collars and shallow test MWD. 22:00 - 00:00 2.00 STWHIP P WEXIT PU 4" DP singles and RIH to 3000'. Up wt. = 100K, S/O wt. _ 100K. 7/12/2005 00:00 -04:00 4.00 STWHIP P WEXIT PU 4" DP singles and RIH to 6874' w/whipstock. 04:00 - 04:30 0.50 STWHIP P WEXIT Orient whipstock to 45 deg left of high side. Tag EZSV 6912'. Set Whipstock at 6912'. Anchor set normally. Did not see shear on bolt. No overpull. Ran set sequence twice. Same result. 04:30 - 05;30 1.00 STWHIP P WEXIT Pump 25 bbl spacer. Circulate and displace well to f0.0 ppg LSND milling fluid. 05:30 - 14;30 9.00 STWHIP P WEXIT Mill window and drill OH to 6917'. Recover 212 lbs. metal. TOW = 6890, BOW = 6907. 130 rpm, 5k tq. on, 450 gpm, 1400 psi. Up wt. 158K, S/O wt. 150K, rot wt. 155K. 14:30 - 15:15. 0.75 STWHIP P WEXIT Pull back and dress window until slick. 15:15 - 16:15 1.00 STWHIP P WEXIT Pump sweep and circulate bottoms up. Mud wt. in and out 10 PPg• 16:15 - 17:00 0.75 STWHIP P WEXIT Perform 11.0 ppg EMW FIT, mud wt. 10.0 ppg., TVD 6640, 345 psi. R/D test lines. 17:00 - 20:30 3.50 STWHIP P WEXIT Pump dry job. POH to BHA. 20:30 - 22:00 1.50 STWHIP P WEXIT UD BHA. Check upper string mill w/8.562" go and 8.5" no go, gage-ok. 22:00 - 00:00 2.00 STWHIP P WEXIT Pull wear bushing and clean out stack w/stack washer tool. Re-install wear bushing. R/D stack washer. 7/13/2005 00:00 - 02:00 2.00 STWHIP P WEXIT PU 8.5" drilling BHA w/1.15 deg. motor and RIH. 02:00 -04:15 2.25 STWHIP P WEXIT RIH w/ 8 1/2" bit on 4" DP 1x1 from pipe shed. (81 jts) 04:15 - 05:15 1.00 STWHIP P WEXIT Con't RIH w/stands to 6842'. 05:15 - 06:00 0.75 STWHIP P WEXIT Slip and cut drilling line. 06:00 - 06:30 0.50 STWHIP P WEXIT Circulate and perform ECD baseline test. Slide thru window w/ pumps off, no problems. 06:30 - 00:00 17.50 P INTi Directonal drill from 6917' to 7795'. Psi on 2750, psi off 2370. Up wt. 173K, S/O wt. 148K, rot. wt. 155K, tq. on 6K, tq. off 5K. ECDs = 10.58 calculated vs. max of 11.07 actual. AST = 8.09, ART = 4.27, ADT = 12.36. 7/14/2005 00:00 - 06:00 6.00 P INTi Directional drill from 7795' to 8275'. Some shale slivers on shakers (~ 8232, overpull and torque on backream C~3 8116'. Pump hi vis sweep. Psi on 2750, psi off 2370. Up wt. 173K, S/O wt. 150K, rot. wt. 155K, tq. on 5.6K, tq. off 4.6K. ECDs = 10.67 calculated vs. max of 10.95 actual. 06:00 - 12:00 6.00 DRILL P INT1 Directional drill from 8275' to 8560'. Psi on 3100, psi off 2910. Up wt. 193K, S/O wt. 155K, rot, wt. 165K, tq. on 7K, tq. off 5.6K. ECDs = 10.67 calculated vs. max of 10.95 actual. 12:00 - 18:00 6.00 DRILL P INT1 Directional drill from 8560' to 8777'. Torque up to 10K. 18:00 - 19:00 1.00 DRILL P INTt Backream and short trip 500' to 8250'. Short tripped to trouble shoot surface pressure loss. Aereated mud caused surface pressure loss. Tight at 8380'. 20K overpull. RIH back to bottom w/no problems. 19:00 - 22:30 3.50 DRILL P INT1 Directional drilling from 8777' to 9022'. Psi on 3350, psi off Printed: 6!1/2005 2:42:27 PM BP Exploration Operations Summary Report Page 3 of 8 Legal Well Name: Z-04 Common Well Name: Z-04 Spud Date: 12/12/1989 Event Name: REENTER+COMPLETE Start: 7/8/2005 End: 7/27/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/27/2005 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours i Task Code NPT i Phase Description of Operations 7/14/2005 19:00 - 22:30 3.50 DRILL P INTi 3150. Up wt. 200K, S/O wt. 165K, rot. wt. 175K, tq. on 6.5K, tq. off 4K. ECDs = 10.77 calculated vs. max of 10.90 max. actual. 22:30 - 23:30 1.00 DRILL P INTi CBU per geo for samples ~ 9022'. 23:30 - 23:35 0.08 DRILL P INTi Drill per geo from 9022' to 9027'. 23:35 - 00:00 0.42 DRILL P INT1 CBU per geo for samples and TD intermediate section ~ 9027'. ADT = 15.31, ART = 7.78, AST = 7.53. 7/15/2005 00:00 - 03:00 3.00 P INT1 Short trip to 9-5/8" window. Tight spot from 7600' to 7650', pull over 25K, backreamed. Tight from 7520' to window C~3 6907, backreamed. 02:45 - 03:15 0.50 DRILL P INTi Service rig and topdrive. 03:15 -04:15 1.00 DRILL P INT1 RIH to 8942', wash down to 9027' intermediate TD. No problems tripping back to bottom. 04:15 - 06:00 1.75 DRILL P INTi Circulate sweep BU, 3150 psi ~ 500gpm. Good cuttings returns. 06:00 - 07:30 1.50 DRILL P INT1 Drop hollow drift w/wireline tail. POH to window. 07:30 - 10:00: 2.50 DRILL P INTi Pump dry job. POH. 10:00 - 11:30 1.50 DRILL P INT1 Lay down BHA. 11:30 - 12:00 0.50 DRILL P INT1 Clear and clean rig floor. 12:00 - 12:45 0.75 CASE P LNRi Safety meeting w/all hands and WSL, rig up to run 7" liner. 12:45 - 16:30 3.75 CASE P LNR1 RIH w/55 jts. liner 7" 26# L-80 BTC-M. 16:30 - 17:15 0.75 CASE P LNR1 PU liner hanger and liner top packer assembly, r/d power tongs. 17:15 - 17:45 0.50 CASE P LNR1 Circulate 90 bbl. liner volume @ 5.8 bbls./min. 320 psi. Up wt. 90K, SO wt. 83K. X2429'. 17:45 - 21:00 3.25 CASE P LNR1 RIH w/stands from derrick f/2429' to/6827'. 21:00 - 21:30 0.50 CASE P LNRi MU cement head on top jt. of std. 47 and LD w/single and RU Schlumberger. At 21:30 the mud pits discharged 2 gals of mud out of hopper which was being lined up w/hopper valve left open. When cleaning up floors and ceiling 1/2 gal. went out mud pit elevator doors. Most was caught in mud products crate coming up the mud pit elevator. 1 cup sprayed over on ground and got droplets on Veco vac truck. Cleaned up and reported to 659-5700. Cleaned up material saved in bucket. 21:30 - 22:30 1.00 CASE P LNR1 Circ. 355 bbls. bottoms up C~ 8pm = 920 psi. Up wt 160K, SO wt 135K ~ 6885'. 22:30 - 00:00 1.50 CASE P LNRi RIH (/6885' to 8995'. 7/16/2005 00:00 - 01:15 1.25 CASE P LNRi RIH to 9000'. Up wt 160K, SO wt. 135K. Circulate down last jt and find bottom ~ 9031'. Up wt. 250K, SO wt 145K. SO to bottom at 9031' and PU to 9029' to cement liner. RU cement head and lines. Circulate 2 OH annular volumes, 100 bbls. ~ 6.5 bpm, 1193 psi. 01:15 - 01:30 0.25 CASE P LNR1 PJSM w/all hands, Schlumberger, and WSL before cement job. 01:30 - 03:30 2.00 CASE P LNR1 Pump 7" liner cement job per program. Pressure test lines to 4000 psi. Wash lines to flow line. Pump 40 bbls. Mudpush, pump 88 bbls 15.8# cement slurry, drop plug, displace. Did not see drill pipe wiper dart shear liner wiper plug. Plugs bumped. Pressured up to 3500 psi and held 5 min. to set liner hanger. Bleed off pressure check floats--OK. Slack off liner wt + 40K #. Printed: 8/1/2005 2:42:27 PM BP Exploration Operations Summary Report Page 4 of 8 Legal Well Name: Z-04 Common Well Name: Z-04 Spud Date: 12/12/1989 Event Name: REENTER+COMPLETE Start: 7/8/2005 End: 7/27/2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/27/2005 Rig Name: NABOBS 7ES Rig Number: Date ~ From - To ~ Hours Task II` Code ~ NPT Phase Description of Operations -- - _ _ -- - .L--- 7/16/2005 01:30 - 03:30 2.00 CASE P LNR1 Pressure up 1000 psi and PU until pressure dropped, packoff clear. Increase pump rate. Circulate 30 bbls. up annulus to clear cement. S/O 45K # and see packer shear at surface. Repeat 2 times. SO 45K# and rotate on top of packer w/rotating dog sub. Packer set normally, saw pipe jump at surface. Liner shoe ~ 9029', Liner top C~ 6707'. 03:30 - 05:30 2.00 CASE P LNR1 PU to clear tools from liner top. Circulate out 30 bbls cement strung out in mud. 05:30 - 10:30 5.00 CASE P LNR1 UD cement head, clear floor, pump dry job and POH w/liner running tools. 10:30 - 11:00 0.50 CASE P LNR1 Make service breaks and lay down liner running tools. 11:00 - 12:30 1.50 CASE P LNRi L/D 8 stds HWDP and jars. 12:30 - 15:15 2.75 DRILL P PROD1 PU 6-1/8" BHA # 3 w/Short Pak motor assy. RIH to 500' and shallow test MW D. 15:15 - 20:00 4.75 DRILL P PROD1 PU DP singles and TIH to 4516'. 20:00 - 22:15 2.25 DRILL P PROD1 RIH to 8819' 22:15 - 23:45 1.50 DRILL P PROD1 Wash f/8819' to 8915'. Circulate BU 430 bbls., 250 gpm, 1830 psi, rpm 40, tq. 6K. 23:45 - 00:00 0.25 DRILL P PROD1 RU to test casing. 7/17/2005 00:00 - 01:00 1.00 EVAL P PROD1 Test 7" x 9 5/8" casing and liner top to 3500 psi / 30 mins as per BP regs. Good test. RD test equipment 01:00 - 02:15 1.25 DRILL P PROD1 Drill through plugs to landing collar at 8942'. 1743 psi, 240 spm, 40 rpm. 02:15 - 03:00 0.75 DRILL P PROD1 Drill through float collar at 8985' to top of shoe ~ 9027'. Drill out bottom of shoe = 9029'. 03:00 - 05:00 2.00 DRILL P PROD1 Circulate 100 bbl. water spacer, 542 bbls. 8.5 ppg Flo-Pro mud S/S , 211 gpm, 1836 psi. 05:00 - 05:30 0.50 DRILL P PROD1 Drill out shoe C~3 9029' + 20' new hole to 9051'. 05:30 - 06:15 0.75 DRILL P PROD1 Perform FIT to 10 ppg EMW. PSI = 675, mud wt. = 8.5 ppg. 06:15 - 15:00 8.75 DRILL P PROD1 Directional drill from 9051' to 9297'. Up wt. 185K, S/O wt. 160K, 250 gpm, 1470 psi on, 1350 psi off. Sliding. ADT = 7.48, AST = 7.48, ART = 0. Completed 18 deg. curve per plan. POH to PU lateral assy. 15:00 - 20:30 5.50 DRILL P PROD1 POH above shoe to 9005'. Monitor well, pump dry job and POH to 213'. 20:30 - 22:00 1.50 DRILL P PRODi PJSM w/Schlumberger. Handle and lay down BHA for downloading. 22:00 - 23:00 1.00 DRILL P PRODi Download MWD tools. 23:00 - 00:00 1.00 DRILL P PROD1 PJSM w/ Schlumberger. PU and RIH w/BHA # 4 w/6-1/8" Hycalog DS277H and 1.50 deg inclination motor assy. 7/18/2005 00:00 - 01:30 1.50 DRILL P PROD1 PU BHA #4 w/6-1/8" Hycalog DS277H and 1.50 deg inclination at bit motor assy. PJSM w/Schlumberger and all hands. Load nukes. 01:30 - 04:45 3.25 DRILL P PROD1 TIH to 9022'. 04:45 - 05:45 1.00 DRILL P PROD1 S/C drill line at shoe. Service top drive. 05:45 - 06:00 0.25 DRILL P PRODi TiH to 9214' w/no hole problems. 06:00 - 06:30 0.50 DRILL P PRODi Wash down from 9214' to 9297'. 06:30 - 00:00 17.50 DRILL P PRODi Directional drill from 9297' to 9927'. Up wt. 185K, S/O wt. 155K, Rt wt. 170K, Tq. on 6K, Tq. off 5K., RPM 80, 276 gpm, 1530 psi on, 1370 psi off. AST = 11.16, ART = 1.48, ADT = 12.64. Solids control van processed 4167 bbls., removed 15 bbls, solids, effluent 8.4 ppg. 7/19/2005 00:00 - 12:00 12.00 DRILL P PROD1 -Drill directional in 6-1/8" hole from 9,927' to 10,457'. WOB Printed: 8/1/2005 2:42:27 PM BP Exploration Operations Summary Report Legal Well Name: Z-04 Common Well Name: Z-04 Event Name: REENTER+COMPLETE Contractor Name: NABOBS ALASKA DRILLING Rig Name: NABOBS 7ES Date From - To~ Hours Task Code NPT 7/19/2005 ~ 00:00 - 12:00 12.00 ~ DRILL ~ P 12:00 - 00:00 I 12.00) DRILL I P 7/20/2005 100:00 - 12:00 I 12.001 DRILL I P 12:00 - 00:00 12.00 DRILL P /21/2005 100:00 - 19:30 I 19.501 DRILL I P 19:30 - 20:00 I 0.501 DRILL I P 20:00 - 20:30 20:30 - 00:00 /22/2005 100:00 - 10:30 0.50 DRILL P 3.50 DRILL P 10.50 DRILL P 10:30 - 12:00 12:00 - 13:30 13:30 - 15:30 1.50 DRILL P 1.50 DRILL P 2.00 DRILL P Page 5 of 8 Spud Date: 12/12/1989 Start: 7/8/2005 End: 7/27/2005 Rig Release: 7!2712005 Rig Number: Phase Description of Operations PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 15:30 - 18:30 3.00 DRILL P PROD1 18:30 - 21:00 2.50 DRILL P PROD1 21:00 - 22:30 1.50 CASE P PROD1 22:30 - 00:00 ~ 1.501 CASE P PROD1 7/23/2005 100:00 - 05:30 I 5.501 CASE I P I I PRODi 05:30 - 06:30 1.00 CASE P PROD1 06:30 - 07:30 1.00 CASE P PRODi 20K, 280 GPM, 1470 psi on, 1350 psi off, 60 RPM, Tq on bottom 6K, Tq off bottom 5K, P/U wt 195K, S/O wt 150K, Rot wt 170K. - AST 8.72 hrs, ART 1.20 hrs, ADT 9.92 hrs. -Drill directional in 6 1/8" hole from 10,457' to 10,800'. WOB 20K, 280 GPM, 1480 psi on, 1350 psi off, 60 RPM, Tq on bottom 6K, Tq off bottom 5K, P/U wt 195K, S/O wt 150K, Rot wt 170K. - AST 6.37 hrs, ART .68 hrs, ADT 7.05 hrs. - Drill directional in 6 1/8" hole from 10,800' to 11,413'. WOB 10-20K, 280 GPM, 1720 psi, 80 RPM, Tq on bottom 7K, Tq off bottom 4K, P/U wt 195K, S/O wt 150K, Rot wt 165K. - ART 6.22 hrs, AST 1.82 hrs, ADT 8.04 hrs. -Drill directional in 6 1/8" hole from 11,413' to 11,764'. WOB 10-15K, 280 GPM, 1740 psi, 80 RPM, Tq on bottom 7K, Tq off bottom 5K, P/U wt 195K, S/O wt 150K, Rot wt 165K. - ART 5.27 hrs, AST 2.92 hrs, ADT 8.19 hrs. -Drill directional in 6 1/8" hole from 11,764' to TD ~ 12,660' and - 9017' TVD. WOB 10-18K, 280 GPM, 1850 psi 80 RPM, Tq on bottom 7K, Tq off bottom 5K, P/U wt 195K, S/O wt 150K, Rot wt 170K. - AST 3.05 hrs, ART 12.8 hrs, ADT 15.85 hrs. -Circulate 1 OH volume ~ 280 GPM, 1600 psi, 80 RPM, & reciprocating string. - POH w/first 6 stands w/ no problems -hole slick. - Perform madd pass while POH from 11,990'to 11,310' @ 360 FPM, 280 GPM, 60 RPM. - Madd pass from 11,310' to 9,230' ~ 360 FPH, 280 GPM, 60 RPM. 25K drag C~? 9,740' - backream /ream & clean up tight spot. - Pump out to 7" shoe from 9,230' to 9,025' - CBU @ 270 GPM, 1275 psi, 45 RPM & reciprocating string. - POH from 9,025' to 6,708' placing circ sub C~ 7" liner top. - Drop dart & shear open circ sub w/ 2,200 psi. Pump hi-vis sweep & circulate surface to surface + 2 B/U at 550 GPM, 1,000 psi, 45 RPM. Circulate until hole clean. Sweep brought back 20% excess cuttings on B/U. - POH to BHA. - PJSM -Pull source & L/D BHA. - Clean & clear floor. - R/U to run 4 1/2" 13CR80 Vam Top liner w/ single jt compensator & utilizing Torque Turn. - PJSM on running liner. - M/U & run 16 jts of 89 jts 4 1/2" 12.6# 13CR80 Vam Top liner. Bakerlok float jts -fill & check floats. Utilizing Jet Lube Seal Guard thread compound & Torque Turn on all connections. Avg. M/U Tq - 4440 Wlbs. - M/U & RIH w/ 4 1/2" 12.6# 13CR80 Vam Top finer utilizing Jet Lube Seal Guard thread compound & Torque Turn on all connections. Avg M/U Tq - 4440 ft/Ibs. - Ran a total of 89 jts & i 20' marker jt above Sadlerochit. - M/U Baker 7" x 5" liner hanger / ZXP packer. - P/U stand 4" DP &circ string volume ~ 6 BPM, 295 psi. P/U Printed: 8/1/2005 2:42:27 PM BP Exploration Operations Summary Report Page 6 of 8 Legal Well Name: Z-04 Common Well Name: Z-04 Spud Date: 12/12/1989 Event Name: REENTER+COMPLETE Start: 7/8/2005 End: 7/27/2005 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 7/27/2005 Rig Name: NABORS 7ES Rig Number: Date From - To ~~ Hours ! Task Code NPT Phase 7/23/2005 06:30 - 07:30 1.00 CASE P PRODi 07:30 - 11:30 4.00 CASE P PRODi 11:30 - 13:00 1.50 CASE P PRODi 13:00 - 13:30 I 0.501 CASE I P I I PRODi 13:30 - 16:00 2.50 CASE P PROD1 16:00 - 21:00 5.00 CASE P PROD1 21:00 - 22:30 I 1.501 CASE I P I I PROD1 22:30 - 23:30 1.00 CEMT P PROD1 23:30 - 00:00 I 0.501 CEMT I P I I PROD1 7/24/2005 100:00 - 00:30 0.501 CEMT P PROD1 00:30 - 01:30 1.001 CASE I P PROD1 01:30 - 02:30 I 1.001 CASE I P I I PROD1 02:30 - 04:30 2.001 CASE P PROD1 04:30 - 07:00 2.50 CASE P PROD1 07:00 - 09:00 2.00 CASE P PRODi 09:00 - 10:30 1.50 BOPSU P PROD1 10:30 - 12:00 1.50 BOPSU P PROD1 12:00 - 13:30 1.50 BOPSU P PRODi 13:30 - 17:00 3.50 BOPSU P PROD1 17:00 - 18:00 1.00 BOPSU~ P PROD1 18:00 - 19:30 1.50 CASE P PROD1 Description of Operations wt 75K, S/O wt 75K. - RIH w/ liner on 4" DP to 7" shoe. - Stage up pumps & circulate & condition mud. ICP C~3 2.3 BPM 270 psi, FCP @ 6 BPM 500 psi. - P/U wt 155K, S/O wt 145K - Total trip to shoe - 7 bbl loss. - VD single, P/U 15' pup & M/U to cement head. VD cement head on skate. - RIH w/ liner on 4" DP to tight spot C~ 12,430'. - Wash & work string in tight hole from 12,430' to 12,656'. 2-4 BPM, max pressure 1,000 psi. - P/U cement head & M/U tee, valves & hoses. - Tag bottom ~ 12,660'. Stage up pumps & circulate OH volume x 5. Max rate ~ 5 BPM 1300 psi. Reciprocate string 15' for first 2 OH volumes & then left stationary C 12,658' for remainder of circulation. & cement job due to hole conditions. - Hold PJSM for cement job while circulating. - Pump 5 bbls fresh water & test lines to 4,500 psi: Bleed off pressure & pump 15 bbls CW-100, followed by 30 bbls 9.6 ppg Mud Push II. Pump 94 bbls (345 sx) 15.8 ppg Class G cement. -Turn over to rig pump & displace cement w/ 55 bbl 8.6 ppg pert pill. - Swap to mud & continue displacing cement ~ 4-5 BPM. With 15 bbls cement outside of shoe lost full returns. Bump plug & increase pressure to 4,000 psi. - Slack off 70K on hanger to ensure hanger set. Bleed off pressure & check floats -floats holding. - P/U string 6' to actuate rotating dog sub & set down 75K to set packer. Repeat w/ rotation to ensure packer set. Apply 1,000 psi & P/U string until running tool clear of packoff. Increase pump rate immediately once running tool clear of packoff. - CBU C~? 10 BPM, 1340 psi. No cement returns to surface. - VD cementing head, R/D hoses, tee, & valves. - Displace well to S/1/V above top of 4 1/2" liner. 10 BPM 1330 psi. - Pump dry job - POH & rack back 55 stands 4" DP. -POH&UD114jts4"DP1 x1. - Dog sub sheared on Baker liner hanger running tool. - R/U to test ROPE. -Test BOPE per BP & AOGCC regs. - R/U to test BOPE. Unable to use test pump - R/U to test w/ rig pump. - Test BOPE per BP & AOGCC regs. Test all equip't including annular preventer to 250 psi / 3500 psi. Hold and chart each test for 5 minutes. BOPE test witnessed by AOGCC Rep. Chuck Scheve & WSL Lance Vaughan. - R/D test equip't - B/D lines -pull test plug -install bowl protector. - R/U & test 4 1/2" x 7" x 9 5/8" liner /casing to 3500 psi. Chart test & held for 30 minutes. - PJSM for running guns while testing casing. - Bleed off pressure & B/D lines Printed: 8/1/2005 2:42:27 PM BP Exploration Operations Summary Report Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Date From - To 7/24/2005 19:30 - 20:00 20:00 - 22:30 22:30 - 00:00 7/25/2005 00:00 - 01:30 01:30 - 02:00 02:00 - 06:00 06:00 - 06:30 06:30 - 07:30 07:30 - 10:00 10:00 - 16:00 16:00 - 19:30 19:30 - 20:00 20:00 - 00:00 00:00 - 01:30 01:30 - 02:30 02:30 - 03:00 03:00 - 05:30 Z-04 Z-04 REENTER+COMPLETE Start: 7/8/2005 NABOBS ALASKA DRILLING I Rig Release: 7/27/2005 NABOBS TES Rig Number: Hours Task ~ Code NPT I Phase 0.50 CASE P PROD1 2.50 CASE P PROD1 1.50 CASE P PRODi 1.50 CASE P PROD1 0.50 CASE P PROD1 4.00 CASE P PROD1 0.50 CASE P 1.00 CASE P PROD1 PROD1 2.50 CASE P 6.00 CASE P 3.50 CASE P 0.50 CASE P 4.00 CASE P 1.50 CASE P 1.00 CASE P 0.50 BOPSU P 2.50 BUNCO 05:30 - 00:00 18.50 7/27/2005 ~ 00:00 - 03:30 ~ 3.50 PROD1 PROD1 PRODi PROD1 PRODi PRODi PROD1 PROD1 RUNCMP RUNCMP RUNCMP Page 7 of 8 Spud Date: 12/12/1989 End: 7/27/2005 Description of Operations - R/U to run perforation guns. - M/U &RIH w/ 2 1/2" perforation guns set up for 4 SPF. - R/U 2 7/8" handling equip't &RIH w/ 2 7/8" DP. - RIH w/ pert guns on 2 7/8" DP. - R/D 2 7/8" handling equip't & R/U 4" handling equip't. - RIH w/ pert guns on 4" DP. Tag landing collar on depth C~3 12,571'. - P/U string & space out to put pert guns on depth ~ 12,480'. - PJSM on perforating. - Close annular preventer & pump down annulus & drill string following pressure sequence procedure per Schlumberger TCP Specialist. Perforate well w/ good indication of guns firing -pipe movement ~ surface. - Monitor well while POH - 20 bbl loss in 5 minutes. - Planned perforation intervals w/ 4 SPF as follows: 10,570' to 10,690' i0,730'to 10,840' 10,900' to 11,070' 11,170' to 11,430' 11,470'to 11,510' 11,560'to 11,600' 11,770' to 11,980' 12050' to 12,170' 12,450' to 12,480' - POH & UD 4" DP 1 x 1. Monitor well above top perforations. Losses 7 BPH. - Continue POH & UD 4" DP 1 x 1. - UD 4" handling equip't & R/U 2 7/8" handling equip't. - POH & UD 59 jts 2 7/8" DP. - PJSM on handling pert guns. - UD last 2 jts of 2 7/8" DP. - POH & UD perf guns. - 115 bbls lost since well perforated. Losses have slowed down to current rate of 3 bbls/hr. - POH & UD perf guns. All guns fired per plan. - Clear & clean floor. - Pull bowl protector & make dummy run w/ tubing hanger. - R/U to run 3 1/2" Vam Ace completion w/ single jt compensator, Torque Turn, &HES gauge carrier & electronics cable. - PJSM for running completion. - M/U 3 1/2" tailpipe ass'y - WLEG, XO pup jt, X nipple, XO pup jt, X nipple, XO pup jt, XO pup jt, S-3 Baker packer, XO pup jt. Bakerlok both connections below packer. M/U 1 jt 3 112" 9.2# 13CR80 Vam Ace tubing, followed by a pup jt, HES gauge carrier, pup jt, XO pup, X nipple, pup jt. - RIH w/ 3 1/2" 9.2# 13CR80 Vam Ace completion w/ 7 GLM's spaced out per program & X nipple C~J 2,200'. M/U Torque 2820 ft/Ibs & using Jet Lube Seal Guard thread compound. Torque Turn all connections - Losses 67 bbs for last 24 hrs. - Continue RIH w/ 3 1/2" 9.2# 13CR80 Vam Ace completion. - Ran a total of 269 jts 3 1/2" 9.2# 13CR80 Vam Ace tubing Printed: 8/1/2005 2:42:27 PM BP Exploration Operations Summary Report Page 8 of 8 Legal Well Name: Z-04 Common Well Name: Z-04 Spud Date: 12/12/1989 Event Name: REENTER+COMPLETE Start: 7/8/2005 End: 7/27!2005 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 7/27/2005 Rig Name: NABOBS 7ES Rig Number: Date ~~ From - To Hours j Task ~ Code NPT ~ Phase Description of Operations 7/27/2005 00:00 - 03:30 3.50 BUNCO RUNCMP and 1 jt 4 112" Vam Top tubing w/ x-over below hanger. No pup jts for space out required. - Ran a total of 292 control line protectors for electrical cable to gauge carrier. 276 "over the collar" protectors, 15 middle of jt protectors, & 1 middle of jt protector on the jt of 4 1/2" tubing below the hanger. 1 stainless steel band on electrical cable below tubing .hanger. 03:30 - 06:30 3.00 BUNCO RUNCMP -Tag up inside 11.64' liner tieback sleeve w/ 5K. P/U string 10' & repeat sequence & tag up w/ 10K. Space out, L/D excess jts, M/U hanger & landing jt, cut & prepare electrical cable for splice. - RIH & land hanger. 06:30 - 07:00 0.50 BUNCO RUNCMP - R/U headpin & hose on landing jt. R/U secondary kill line on IA. 07:00 - 10:30 3.50 BUNCO RUNCMP -Reverse circulate 305 bbls S/W with corrosion inhibitor followed by 168 bbls non-inhibited S/1IV ~ 3 BPM 220 psi. 10:30 - 11:00 0.50 BUNCO RUNCMP -Drop ball & rod & set packer w/ 2800 psi. Increase pressure to 3500 psi & test tubing. Hold & chart test for 30 minutes. 11:00 - 13:00 2.00 BUNCO RUNCMP -Bleed tubing pressure to 1500 psi & pressure up on annulus to 3500 psi. Hold & chart test for 30 minutes. - Bleed off annulus pressure to zero and bleed tubing pressure to zero. - Pump on annulus & shear DCR valve in GLM. Sheared at 2500 psi. Pump both ways to ensure ability to U-tube. - R/D & B/D lines. L/D landing jt. 13:00 - 15:30 2.50 BOPSU P WHDTRE -Set TWC & pressure test from below to 1000 psi. - N!D BOP stack. 15:30 - 18:00 2.50 WHSUR P WHDTRE - N/U adaptor flange & tree -test to 5000 psi - Terminate electrical cable & install cable head adaptor 18:00 - 19:00 1.00 WHSUR P WHDTRE - R/U lubricator & pull TWC. 19:00 - 22:00 3.00 WHSUR P WHDTRE - R/U Little Red on IA & pump 155 bbfs 75 deg diesel ~ 3 BPM 550 psi & allow to U-tube. 22:00 - 23:30 1.50 WHSUR P WHDTRE - R/U lubricator & set BPV. Test BPV to 1000 psi. - R/D lubricator & B/D lines. 23:30 - 00:00 0.50 WHSUR P WHDTRE -Secure tree & cellar. - Release rig from Z-04 C~ 23:59 hrs. Printed: 8/1/2005 2:42:27 PM Z-04A Acl.~al Completior~# F ID = 12.415" 2,696 9 5/8" X 7" Baker HMC 6,707 hngr and ZXP pkr w /TBS 26 4 1/2" X 3 1/2" crossover 2,196 3 1 /2" 'X' landing nipple, ID = 2.813" TREE = FMC WELLHEAD = FMC ACTUATOR = KB. ELEV = 85.15' BF. ELEV = 57.4T KOP = 6910' Max Angle = 95° @ 9740' Datum MD = 9231' Datum TV D = 8762' SS GAS LIFT MANDRELS ST MD TVD DEV TYPE VALVE PORT LATCH DATE 7 2657 2657 0 MMG DOME 0 RK 08/15/05 6 4792 4701 28 MMG SO 0 RK 08/15/05 5 6458 6218 21 MMG DMY 0 RK 07/23/05 4 7274 6983 23 KBG-2-9 DMY 0 BK 07/23/05 3 7806 7467 24 KBG-2-9 DMY 0 BK 07/23/05 2 8338 7943 29 KBG-2-9 DMY 0 BK 07/23/05 1 8712 8269 29 KBG-2-9 DMY 0 BK 07/23/05 8,741 3 1/2" 'X' landing nipple, ID = 2.813" 8,761 3 1/2" HES'SymQhony Plus' DHPG carrier / 8,815 7" X 4 1/2" Baker S-3 packer / 8,840 3 1/2" 'X' landing nipple, ID = 2.813" 8, 861 3 1 /2" 'X' landing nipple, ID = 2.813" 8,875 3 1/2", 9.2#, 13Cr-80, VAMTOPWLEG 8,869 7" X 5" Baker HMC Lnr hngr and ZXP pkr w ith 11' TBS 9,029 7", 26#, L-80 BTGM Drlg liner TOP OF5-1/2"LNR 8,930 ID = 2.992" 8,933 8os, ID = 8.681" 9,164 PBTD 9,720 5 1/2", 17#, NT-80S, ID = 4.892" 9, 867 DATE REV BY COMMENTS DATE REV BY COMMENTS 01/03/90 JO ORIGINAL COMPLETION 06/16!01 RN(fP CORRECTIONS 06!07/02 BLC/TLH PKR SOZ CORRECTION 07/15/05 LV Actual 08/02/05 /TLH DEPTH CORRECTIONS 08125!05 KSB(fLH GLV GO (08115/05) PRUDHOE BAY UNff WELL: Z-04A PERMIT No: 1891230 API No: 50-029-21990-01 SEC 19, T11N, R12E, 975' FNL & 1392' FWL BP Exploration (Alaska) 12,658 4 1/2", 12.6#, 13Cr-80, VAMTOP Z-04A Survey Report Report Date: 22•Jul-05 Survey /DLS Computation Method: Minimum Curvature / Lubinski Client: BP Exploration Alaska Vertical Section Azimuth: 275.190° Field: Prudhoe Bay Unit - WOA Vertical Section Origin: N 0,000 ft, E 0.000 ft Structure /Slot: Z-PAD / Z-04 Np Reference Datum: Rotary Table Well: Z-04 ND Reference Elevation: 85.51 ft relative to MSL Borehole: Z-04A Sea Bed /Ground Level Elevation: 54.20 ft relative to MSL UWVAPIH: 500292199001 Magnetic Declination: 24.594° Survey Name /Date: Z-04A /July 22, 2005 Total Field Strength: 57576.965 nT Tort /AHD / DDI / ERD ratio: 280.339° / 5415.46 ft / 6.329 / 0.601 Magnetic Dip: 80.822° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: July 11, 2005 Location LaULong: N 7017 51.728, W 14911 50.435 Magnetic Declination Model: BGGM 2005 Location Grid WE YIX: N 5959100.090 ftUS, E 599115.970 ftUS North Reference: True North Grid Convergence Angle: +0.75567269° Total Corr Mag North -> True North: +24.594° Grid Scale Factor: 0.99991116 Local Coordinates Referenced To: Well Head Measured Vertical Along Hole Comments Inclination Azimuth Sub-Sea ND TUp Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft h ft ft de 100 ft ftUS ftUS H I t U.UU U.VU U.UU -tfb.lb U.UU U.UU U.UU U.UU U.VU U.VU U.UU OybyIUV.Uy by`Jl lb.y/ N /V 1 / 51./Lif VV 14y 11 bU.4Jb GCT MS 52.95 0.00 0.00 -32.20 52.95 0.00 0.00 0.00 0.00 0.00 0.00 5959100.09 599115.97 N 70 17 51.728 W 149 11 50.435 56.60 0.10 234.30 -28.55 56.60 0.00 0.00 0.00 0.00 0.00 2.74 5959100.09 599115.97 N 70 17 51.728 W 149 11 50.435 68.25 0.10 216.51 -16.90 68.25 0.02 0.02 0.02 -0.02 -0.02 0.27 5959100.07 599115.95 N 70 17 51.728 W 149 11 50.435 82.05 0.12 180.08 -3.10 82.05 0.02 0.05 0.05 -0.04 -0.02 0.52 5959100.05 599115.95 N 70 17 51.728 W 149 11 50.436 96.25 0.12 155.82 11.10 96.25 0.01 0.08 0.07 -0.07 -0.02 0.36 5959100.02 599115.95 N 70 17 51.728 W 149 11 50.435 110.35 0.12 145.78 25.20 110.35 0.00 0.11 0.09 -0.09 0.00 0.15 5959100.00 599115.97 N 70 17 51.727 W 149 11 50.435 124.45 0.12 135.51 39.30 124.45 -0.03. 0.14 0.12 -0.12 0.01 0.15 5959099.97 599115.99 N 70 17 51.727 W 149 11 50.434 138.55 0.12 126.37 53.40 138.55 -0.05 0.17 0.14 -0.14 0.04 0.14 5959099.95 599116.01 N 70 17 51.727 W 149 11 50.434 152.70 0.12 114.01 67.55 152.70 -0.08 0.20 0.16 -0.15 0.06 0.18 5959099.94 599116.03 N 70 17 51.727 W 149 11 50.433 166.85 0.12 100.00 81.70 166.85 -0.10 0.23 0.18- -0.16 0.09 0.21 5959099.93 599116.06 N 70 17 51.727 W 149 11 180.95 0.12 85.59 95.80 180.95 •0.13 0.26 0.20 -0.16 0.12 0.21 5959099.93 599116.09 N 70 17 51.727 W 149 11 1 195.10 0.13 69.44 109.95 195.10 •0.16 0.29 0.22 -0.15 0.15 0.26 5959099.94 599116.12 N 70 17 51.727 W 149 11 50.430 209.20 0.13 50.63 124.05 209.20 -0.19 0.32 0.22 -0.14 0.18 0.30 5959099.95 599116.15 N 70 17 51.727 W 149 11 50.430 223.30 0.13 29.97 i 38.15 223.30 -0.21 0.35 0.23 -0.11 0.20 0.33 5959099.98 599116.17 N 70 17 51.727 W 149 11 50.429 237.50 0.13 11.38 152.35 237.50 -0.22 0.38 0.23 -0.08 0.21 0.30 5959100.01 599116.18 N 70 17 51.728 W 149 11 50.429 251.60 0.13 357.72 166.45 251.60 -0.22 0.41 0.22 -0.05 0.21 0.22 5959100.04 599116.18 N 70 17 51.728 W 149 11 50.429 265.75 0.13 344.37 180.60 265.75 -0.21 0.44 0.21 -0.02 0.21 0.21 5959100.07 599116.18 N 70 17 51.728 W 149 11 50.429 279.90 0.13 331.04 194.75 279.90 -0.19 0.48 0.19 0.01 0.19 0.21 5959100.10 599116.16 N 70 17 51.728 W 149 11 50.429 294.10 0.13 318.33 208.95 294.10 -0.17 0.51 0.18 0.03 0.18 0.20 5959100.13 599116.15 N 70 17 51.729 W 149 11 50.430 308.20 0.13 303.51 223.05 308.20 -0.15 0.54 0.16 0.05 0.15 0.24 5959100.15 599116.12 N 70 17 51.729 W 149 11 50.430 322.30 0.12 289.42 237.15 322.30 -0.12 0.57 0.14 0.07 0.12 0.23 5959100.16 599116.09 N 70 17 51.729 W 149 11 50.431 336.45 0.12 275.72 251.30 336.45 -0.09 0.60 0.12 0.07 0.10 0.20 5959100.17 599116.06 N 70 17 51.729 W 149 11 50.432 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25/2005 2:12 PM Page 1 of 14 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de n n ft n ft ft ft de 100 ft nUS nUS 350.95 U.1"L Zfi1.18 Lfi5.f3U 35U.y5 -U.U(i U.(i3 U.IU U.U/ U.U/ 0.11 5y5ylUU.lti 5yy11ti.U3 N /U 1 / 51./[y W 14y 11 5U.4:i:i 365.55 0.10 241.84 280.40 365.55 -0.03 0.66 0.08 0.07 0.04 0.29 5959100.16 599116.01 N 70 17 51.729 W 149 11 50.434 380.25 0.10 222.72 295.10 380.25 -0.01 0.68 0.05 0.05 0.02 0.23 5959100.14 599115.99 N 70 17 51.729 W 149 11 50.434 394.75 0.10 205.82 309.60 394.75 0.00 0.71 0.03 0.03 0.01 0.20 5959100.12 599115.97 N 70 17 51.729 W 149 11 50.435 409.25 0.10 189.68 324.10 409.25 0.00 0.73 0.01 0.01 0.00 0.19 5959100.10 599115.97 N 70 17 51.728 W 149 11 50.435 423.65 0. i 0 175.19 338.50 423.65 0.00 0.76 0.02 -0.02 0.00 0.18 5959100.07 599115.97 N 70 17 51.728 W 149 11 50.435 438.05 0.12 153.82 352.90 438.05 -0.01 0.79 0.05 -0.05 0.00 0.31 5959100.04 599115.97 N 70 17 51.728 W 149 11 50.435 452.45 0.12 128.49 367.30 452.45 -0.03 0.82 0.07 -0.07 0.02 0.37 5959100.02 599115.99 N 70 17 51.728 W 149 11 50.434 466.85 0.12 110.72 381.70 466.85 -0.06 0.85 0.10 -0.08 0.05 0.26 5959100.01 599116.02 N 70 17 51.728 W 149 11 50.433 481.25 0.12 92.23 396.10 481.25 -0.09 0.88 0.12 -0.09 0.08 0,27 5959100.00 599116.05 N 70 17 51.727 W 149 11 50.433 495.75 0.12 65.95 410.60 495.75 -0.11 0.91 0.14 -0.08 0.11 0.38 5959100.01 599116.08 N 70 17 51.728 W 149 11 2 510.15 0.12 46.98 425.00 510.15 -0.14 0.94 0.15 -0.07 0.13 0.27 5959100.03 599116.10 N 70 17 51.728 W 149 11 1 524.55 0.12 33.16 439.40 524.55 -0.15 0.97 0.16 -0.04 0.15 0,20 5959100.05 599116.12 N 70 17 51.728 W 149 11 50.430 539.05 0.13 11.39 453.90 539.05 -0.16 1.00 0.16 -0.01 0.16 0,33 5959100.08 599116.13 N 70 17 51.728 W 149 11 50.430 553.45 0.13 347.52 468.30 553.45 -0.16 1.03 0.16 0.02 0.16 0.37 5959100.11 599116.13 N 70 17 51.729 W 149 11 50.430 567.90 0.13 325.98 482.75 567.90 -0.14 1.06 0.16 0.05 0.15 0.34 5959100.14 599116.12 N 70 17 51.729 W 149 11 50.430 582.35 0.12 306.48 497.20 582.35 -0.12 1.09 0.15 0.07 0.13 0.30 5959100.16 599116.10 N 70 17 51.729 W 149 11 50.431 596.75 0.10 278.03 511.60 596.75 -0.10 1.12 0.13 0.08 0.10 0.40 5959100.17 599116.07 N 70 17 51.729 W 149 11 50.432 611.20 0.10 251.35 526.05 611.20 -0.07 1.14 0.11 0.08 0.08 0.32 5959100.17 599116.05 N 70 17 51.729 W 149 1 t 50.433 625.65 0.10 224.68 540.50 625.65 -0.05 1.17 0.09 0.06 0.06 0.32 5959100.16 599116.03 N 70 17 51.729 W 149 11 50.433 640.05 0.12 196.22 554.90 640.05 -0.04 1.20 0.06 0.04 0.05 0.40 5959100.13 599116.01 N 70 17 51.729 W 149 11 50.434 654.45 0.12 174.59 569.30 654.45 -0.04 1.23 0.04 0.01 0.04 0.31 5959100.10 599116.01 N 70 17 51.728 W 149 11 50.434 668.80 0.12 148.11 583.65 668.80 -0.05 1.26 0.05 -0.02 0.05 0.38 5959100.07 599116.02 N 70 17 51.728 W 149 11 50.433 683.20 0.12 124.82 598.05 683.20 -0.08 1.29 0.08 -0.04 0.07 0.34 5959100.05 599116.04 N 70 17 51.728 W 149 11 50.433 697.60 0.12 106.39 612.45 697.60 -0.10 1.32 0.11 -0.05 0.10 0.27 5959100.04 599116.07 N 70 17 51.728 W 149 11 50.432 712.00 0.12 83.30 626.85 712.00 -0.13 1.35 0.14 -0.05 0.13 0.33 5959100.04 599116.10 N 70 17 51.728 W 149 11 50.431 726.40 0.12 59.24 641.25 726.40 -0.16 1.38 0.16 -0.04 0.16 0.35 5959100.05 599116.13 N 70 17 51.728 W 149 11 50.430 740.90 0.12 35.48 655.75 740.90 -0.18 1.41 0.18 -0.02 0.18 0.34 5959100.07 599116.15 N 70 17 51.728 W 149 11 755.30 0.12 6.87 670.15 755.30 -0.19 1.43 0.19 0.00 0.19 0.41 5959100.10 599116.16 N 70 17 51.728 W 149 11 769.70 0.12 344.55 684.55 769.70 -0.18 1.46 0.19 0.03 0.19 0.32 5959100.13 599116.16 N 70 17 51.729 W 149 11 5.29 784.10 0.12 319.74 698.95 784.10 -0.17 1.49 0.18 0.06 0.17 0.36 5959100.15 599116.14 N 70 17 51.729 W 149 11 50.430 798.50 0.12 289.66 713.35 798.50 -0.14 1.52 0.17 0.08 0.15 0.43 5959100.17 599116.12 N 70 17 51.729. W 149 11 50.431 812.90 0.12 270.66 727.75 812.90 -0.11 1.55 0.14 0.08 0.12 0.28 5959100.17 599116.09 N 70 17 51.729 W 149 11 50.431 827.30 0.12 248.95 742.15 827.30 -0.08 1.58 0.12 0.08 0.09 0.31 5959100.17 599116.06 N 70 17 51.729 W 149 11 50.432 841.75 0.12 221.39 756.60 841.75 -0.06 1.61 0.09 0.06 0.07 0.40 5959100.15 599116.04 N 70 17 51.729 W 149 11 50.433 856.20 0.12 196.91 771.05 856.20 -0.05 1.64 0.06 0.03 0.05 0.35 5959100.12 599116.02 N 70 17 51.729 W 149 11 50.433 870.65 0.13 170.59 785.50 870.65 -0.05 1.67 0.05 0.00 0.05 0.40 5959100.09 599116.02 N 70 17 51.728 W 149 11 50.433 885.05 0.13 143.08 799.90 885.05 -0.06 1.71 0.07 -0.03 0.06 0.43 5959100.06 599116.03 N 70 17 51.728 W 149 11 50.433 899.45 0.13 124.21 814.30 899.45 -0.09 1.74 0.10 -0.05 0.09 0.30 5959100.04 599116.06 N 70 17 51.728 W 149 11 50.432 913.90 0.13 103.09 828.75 913.90 -0.12 1.77 0.13 -0.06 0.12 0.33 5959100.03 599116.09 N 70 17 51.728 W 149 11 50.431 928.35 0.13 77.78 843.20 928.35 -0.15 1.80 0.16 -0.06 0.15 0.39 5959100.03 599116.12 N 70 17 51.728 W 149 11 50.431 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z•04A Generated 8/25/2005 2:12 PM Page 2 of 14 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 h ftUS ttUS 942.75 U.13 Ei3.7 / 85/.(iU y41. /5 -U.15 l .134 U.1 y -U.US U.1 ti U.11 5y5y1 UU.U4 5yy11(i.15 N /U 1 / 51 . /'Ltf W 14y 11 5U.43U 957.20 0.12 52.62 872.05 957.20 -0.21 1.87 0.21 -0.03 0.20 0.18 5959100.06 599116.18 N 70 17 51 .728 W 149 11 50.429 971.65 0.10 42.59 8$6.50 971.65 -0.23 1.89 0.23 -0.02 0.23 0.19 5959100.08 599116.20 N 70 17 51. 728 W 149 11 50.428 986.05 0.07 33.90 900.90 986.05 -0.24 1.92 0.24 0.00 0.24 0.23 5959100.09 599116.21 N 70 17 51. 728 W 149 11 50.428 1000.45 0.02 4.41 915.30 1000.45 -0.24 1.93 0.24 0.01 0.24 0.37 5959100.10 599116.21 N 70 17 51. 728 W 149 11 50.428 1014.75 0.03 277.51 929.60 1014.75 -0.24 1.93 0.24 0.01 0.24 0.25 5959100.11 599116.21 N 70 17 51. 728 W 149 11 50.428 1029.25 0.08 205.89 944.10 1029.25 -0.23 1.94 0.23 0.00 0.23 0.52 5959100.10 599116.20 N 70 17 51. 728 W 149 11 50.428 1043.65 0.15 188.28 958.50 1043.65 -0.23 1.97 0.23 -0.02 0.23 0.54 5959100.07 599116.20 N 70 17 51. 728 W 149 11 50.428 1058.05 0.22 172.16 972.90 1058.05 -0.23 2.02 0.24 -0.07 0.23 0.60 5959100.02 599116.20 N 70 17 51. 728 W 149 11 50.428 1072.55 0.25 157.74 987.40 1072.55 -0.25 2.08 0.27 -0.13 0.24 0.46 5959099.97 599116.21 N 70 17 51. 727 W 149 11 50.428 1086.95 0.25 145.34 1001.80 1086.95 -0.29 2.14 0.33 -0.18 0.27 0.37 5959099.91 599116.24 N 70 17 51. 727 W 149 11 ~7 1101.45 0.25 132.79 1016.30 1101.45 -0.33 2.20 0.39 -0.23 0.31 0.38 5959099.87 599116.29 N 70 17 51. 726 W 149 11 50.426 1115.85 0.23 123.30 1030.70 1115.85 -0.38 2.26 0.45 -0.27 0.36 0.31 5959099.83 599116.33 N 70 17 51. 726 W 149 11 50.424 1130.30 0.20 113.29 1045.15 1130.30 -0.43 2.32 0.50 -0.29 0.41 0.33 5959099.80 599116.38 N 70 17 51. 725 W 149 11 50.423 1144.70 0.18 106.15 1059.55 i 144.70 -0.48 2.37 0.55 -0.31 0.45 0.21 5959099.79 599116.43 N 70 17 51. 725 W 149 11 50.422 1159.15 0.15 103.21 1074.00 1159.15 -0.52 2.41 0.59 -0.32 0.49 0.22 5959099.78 599116.47 N 70 17 51. 725 W 149 11 50.420 1173.60 0.13 100.05 1088.45 1173.60 -0.55 2.44 0.62 -0.33 0.53 0.15 5959099.77 599116.50 N 70 17 51. 725 W 149 11 50.419 1188.00 0.12 99.26 1102.85 1188.00 -0.59 2.47 0.65 -0.33 0.56 0.07 5959099.77 599116.53 N 70 17 51. 725 W 149 11 50.419 1202.30 0.08 91.02 1117.15 1202.30 -0.61 2.50 0.67 -0.33 0.58 0.30 5959099.76 599116.56 N 70 17 51. 725 W 149 11 50.418 1216.55 0.07 158.00 1131.40 1216.55 -0.62 2.52 0.69 -0.34 0.60 0.58 5959099.76 599116.57 N 70 17 51. 725 W 149 11 50.417 1230.80 0.12 226.31 1145.65 1230.80 -0.62 2.54 0.69 -0.36 0.59 0.80 5959099.74 599116.56 N 70 17 51. 725 W 149 11 50.418 1245.05 0.17 217.71 1159.90 1245.05 -0.60 2.57 0.68 -0.39 0.56 0.38 5959099.71 599116.54 N 70 17 51. 725 W 149 11 50.418 1259.25 0.20 211.90 1174.10 1259.25 -0.58 2.62 0.69 -0.42 0.54 0.25 5959099.67 599116.51 N 70 17 51. 724 W 149 11 50.419 1273.50 0.22 210.24 1188.35 1273.50 -0.55 2.67 0.69 -0.47 0.51 0.15 5959099.63 599116.49 N 70 17 51. 724 W 149 11 50.420 1287.75 0.22 210.59 1202.60 1287.75 -0.53 2.73 0.71 -0.52 0.48 0.01 5959099.58 599116.46 N 70 17 51. 723 W 149 11 50.421 1302.00 0.22 211.64 1216.85 1302.00 -0.51 2.78 0.72 -0.56 0.46 0.03 5959099.53 599116.43 N 70 17 51. 723 W 149 11 50.422 1316.20 0.22 214.00 1231.05 1316.20 -0.48 2.84 0.74 -0.61 0.43 0.06 5959099.49 599116.40 N 70 17 51. 722 W 149 11 50.422 1330.35 0.23 208.48 1245.20 1330.35 -0.46 2.89 0.77 -0.66 0.40 0.17 5959099.44 599116.38 N 70 17 51. 722 W 149 11 5 3 1344.55 0.23 188.02 1259.40 1344.55 -0.44 2.95 0.81 -0.71 0.38 0.58 5959099.39 599116.36 N 70 17 51. 721 W 149 11 1358.80 0.25 173.04 1273.65 1358.80 -0.45 3.01 0.86 -0.77 0.38 0.46 5959099.33 599116.36 N 70 17 51. 721 W 149 11 5 4 1373.00 0.23 162.64 1287.85 1373.00 -0.47 3.07 0.92 -0.83 0.39 0.34 5959099.27 599116.37 N 70 17 51. 720 W 149 11 50.423 1387.20 0.18 149.07 1302.05 1387.20 -0.49 3.12 0.97 -0.87 0.41 0.49 5959099.22 599116.39 N 70 17 51. 720 W 149 11 50.423 1401.40 0.17 138.92 1316.25 1401.40 -0.52 3.16 1.01 -0.91 0.44 0.23 5959099.19 599116.42 N 70 17 51. 719 W 149 11 50.422 1415.60 0.13 119.87 1330.45 1415.60 -0.55 3.20 1.04 -0.93 0.47 0.45 5959099.16 599116.45 N 70 17 51. 719 W 149 11 50.421 1429.80 0.12 88.74 1344.65 1429.80 -0.58 3.23 1.06 -0.94 0.49 0.48 5959099.16 599116.48 N 70 17 51. 719 W 149 11 50.420 1444.00 0.12 69.35 1358.85 1444.00 -0.61 3.26 1.07 -0.93 0.52 0.28 5959099.16 599116.51 N 70 17 51. 719 W 149 11 50.420 1458.20 0.12 57.$8 1373.05 1458.20 -0.63 3.29 1.07 -0.92 0.55 0.17 5959099.18 599116.53 N 70 17 51. 719 W 149 11 50.419 1472.45 0.10 350.36 1387.30 1472.45 -0.64 3.31 1.06 -0.90 0.56 0.87 5959099.20 599116.54 N 70 17 51. 719 W 149 11 50.419 1486.60 0.10 295.05 1401.45 1486.60 -0.62 3.33 1.04 -0.88 0.55 0.66 5959099.21 599116.53 N 70 17 51. 720 W 149 11 50.419 1500.85 0.10 285.80 1415.70 1500.$5 -0.60 3.36 1.02 -0.88 0.52 0.11 5959099.22 599116.50 N 70 17 51. 720 W 149 11 50.420 1515.05 0.12 257.02 1429.90 1515.05 -0.57 3.38 1.01 -0.88 0.50 0.41 5959099.22 599116.48 N 70 17 51. 720 W 149 11 50.420 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8!25/2005 2:12 PM Page 3 of 14 Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de k ft ft ft ft ft ft de 100 k ftUS ftUS 1529.25 0.12 227.31 1444.10 1529.25 -0.55 3.41 1.01 -0.89 0.47 0.43 5959099.21 599116.45 N 70 17 51,720 W 149 11 50.421 1543.45 0.13 210.33 1458.30 1543.45 -0.53 3.44 1.02 -0.91 0.45 0.27 5959099.18 599116.43 N 70 17 51 .719 W 149 11 50.422 1557.70 0.13 200.77 1472.55 1557.70 -0.52 3.48 1.04 -0.94 0.44 0.15 5959099.15 599116.42 N 70 17 51 ,719 W 149 11 50.422 1571.90 0.15 182.37 1486.75 1571.90 -0.52 3.51 1.07 -0.98 0.43 0.34 5959099.12 599116.41 N 70 17 51 .719 W 149 11 50.422 1586.15 0.17 156.93 1501.00 1586.15 -0.53 3.55 1.10 -1.01 0.44 0.51 5959099.08 599116.42 N 70 17 51 .718 W 149 11 50.422 1600.35 0.18 131.33 1515.20 1600.35 -0.56 3.59 1.15 -1.05 0.46 0.55 5959099.05 599116.45 N 70 17 51 ,718 W 149 11 50.421 1614.55 0.17 102.40 1529.40 1614.55 -0.60 3.64 1.18 -1.07 0.50 0.62 5959099.03 599116.49 N 70 17 51 .718 W 149 11 50.420 1628.75 0.15 86.54 1543.60 1628.75 -0.64 3.67 1.20 -1.07 0.54 0.34 5959099.03 599116.53 N 70 17 51 .718 W 149 11 50.419 1642.95 0.13 90.24 1557.80 1642.95 -0.67 3.71 1.21 -1.07 0.58 0.15 5959099.03 599116.56 N 70 17 51 ,718 W 149 11 50.418 1657.15 0.10 89.41 1572.00 1657.15 -0.70 3.74 1.23 -1.07 0.60 0.21 5959099.03 599116.59 N 70 17 51 .718 W 149 11 50.417 1671,25 0.07 75.48 1586.10 1671.25 -0.72 3.76 1.24 -1.07 0.62 0.26 5959099.03 599116.61 N 70 17 51 .718 W 149 11 ~7 1685.35 0.05 351.05 1600.20 1685.35 -0.73 3.77 1.23 -1.06 0.63 0.58 5959099.04 599116.62 N 70 17 51 .718 W 149 11 50.416 1699.65 0.03 272.70 1614.50 1699.65 -0.72 3.78 1.23 -1.05 0.63 0.37 5959099.05 599116.61 N 70 17 51 .718 W 149 11 50.417 1713.85 0.07 263.03 1628.70 1713.85 -0.71 3.79 1.22 -1.05 0.62 0.29 5959099.05 599116.60 N 70 17 51 .718 W 149 11 50.417 1728.05 0.17 237.84 1642.90 1728.05 -0.68 3.82 1.22 -1.07 0.59 0.78 5959099.03 599116.57 N 70 17 51 .718 W 149 11 50.418 1742.20 0.23 220.42 1657.05 1742.20 -0.65 3.87 1.23 -1.10 0.55 0.60 5959099.00 599116.54 N 70 17 51 .718 W 149 11 50.419 1756.40 0.23 217.65 1671.24 1756.39 -0.62 3.93 1.25 -1.14 0.52 0.08 5959098.95 599116.50 N 70 17 51 .717 W 149 11 50.420 1770.60 0.25 209.74 1685.44 1770.59 -0.59 3.99 1.29 -1.19 0.48 0.27 5959098.90 599116.47 N 70 17 51 .717 W 149 11 50.421 1784.80 0.25 204.14 1699.64 1784.79 -0.57 4.05 1.33 -1.25 0.46 0.17 5959098.85 599116.44 N 70 17 51 .716 W 149 11 50.422 1798.95 0.25 197.41 1713.79 1798.94 -0.55 4.11 1.37 -1.30 0.43 0.21 5959098.79 599116.42 N 70 17 51 .716 W 149 11 50.422 1813.15 0.20 168.74 1727.99 1813.14 -0.55 4.16 1.42 -1.36 0.43 0.86 5959098.74 599116.42 N 70 17 51 .715 W 149 11 50.422 1827.40 0.15 131.95 1742.24 1827.39 -0.57 4.21 1.47 -1.40 0.45 0.84 5959098.70 599116.44 N 70 17 51 .715 W 149 11 50.422 1841.60 0.13 116.49 1756.44 1841.59 -0.60 4.24 1.49 -1.41 0.48 0.30 5959098.68 599116.47 N 70 17 51 .714 W 149 11 50.421 1855.80 0.13 113.04 1770.64 1855.79 -0.63 4.27 1.52 -1.43 0.51 0.06 5959098.67 599116.49 N 70 17 51 .714 W 149 11 50.420 1870.00 0.12 108.74 1784.84 1869.99 -0.66 4.30 1.54 -1.44 0.53 0.10 5959098.66 599116.52 N 70 17 51 .714 W 149 11 50.419 1884.20 0.13 108.46 1799.04 1884.19 -0.69 4.34 1.56 -1.45 0.56 0.07 5959098.65 599116.55 N 70 17 51 .714 W 149 11 50.418 1898.40 0.10 101.59 1813.24 1898.39 -0.72 4.36 1.57 -1.46 0.59 0.23 5959098.64 599116.58 N 70 17 51 .714 W 149 11 50.418 1912.60 0.08 167.64 1827.44 1912.59 -0.74 4.38 1.59 -1.47 0.61 0.70 5959098.63 599116.60 N 70 17 51 .714 W 149 11 7 1926.75 0.15 235.90 1841.59 1926.74 -0.72 4.41 1.60 -1.49 0.59 1.00 5959098.61 599116.58 N 70 17 51 .714 W 149 11 1940.95 0.17 233.47 1855.79 1940.94 -0.69 4.45 1.61 -1.51 0.56 0.15 5959098.59 599116.55 N 70 17 51 .713 W 149 11 5.19 1955.15 0.17 237.72 1869.99 1955.14 -0.66 4.49 1.62 -1.54 0.53 0.09 5959098.56 599116.52 N 70 17 51 .713 W 149 11 50.420 1969.35 0.15 237.61 1884.19 1969.34 -0.63 4.53 1.63 -1.56 0.49 0.14 5959098.54 599116.48 N 70 17 51 .713 W 149 11 50.421 1983.30 0.15 234.74 1898.14 1983.29 -0.60 4.57 1.64 -1.58 0.46 0.05 5959098.52 599116.45 N 70 17 51 .713 W 149 11 50.421 1997.20 0.17 223.63 1912.04 1997.19 -0.58 4.61 1.66 -1.60 0.43 0.26 5959098.49 599116.42 N 70 17 51 .713 W 149 11 50.422 2011,10 0.20 203.07 1925.94 2011.09 -0.56 4.65 1.69 -1.64 0.41 0.52 5959098.46 599116.40 N 70 17 51 .712 W 149 11 50.423 2025.05 0.20 191.38 1939.89 2025.04 -0.55 4.70 1.73 -1.69 0.39 0.29 5959098.41 599116.39 N 70 17 51 .712 W 149 11 50.423 2039,05 0.18 184.05 1953.89 2039.04 -0.54 4.75 1.78 -1.73 0.39 0.22 5959098.36 599116.38 N 70 17 51 .711 W 149 11 50.424 2053.05 0.18 173.36 1967.89 2053.04 -0.55 4.79 1.82 -1.78 0.39 0.24 5959098.32 599116.38 N 70 17 51 .711 W 149 11 50.424 2067,00 0.17 157.19 1981.84 2066.99 -0.56 4.83 1.86 -1.82 0.40 0.36 5959098.28 599116.39 N 70 17 51 .710 W 149 11 50.423 2080.95 0.15 122.02 1995.79 2080.94 -0.59 4.87 1.89 -1.85 0.42 0.71 5959098.25 599116.42 N 70 17 51 .710 W 149 11 50.423 SurveyEditor Ver SP 1.0 Bld( doc4Ox_56) Z-O4~Z-O4~Z-O4A~Z-O4A Generated 8/25/2005 2:12 PM Page 4 of 14 Measured Vertical Along Hole Comments Inclination Azimuth Sub-Sea ND ND Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS 'LUy4.yU U.13 y/.L/ ZUUy./4 LUy4.iSy -U.bL 4.yU l.yl -l.t5tl 2108.90 0.13 88.20 2023.74 2108.89 -0.65 4.93 1.92 -1.86 2122.90 0.13 77.74 2037.74 2122.89 -0.68 4.97 1.93 -1.86 2136.85 0.13 49.33 2051.69 2136.84 -0.71 5.00 1.92 -1.84 2150.75 0.12 358.78 2065.59 2150.74 -0.72 5.03 1.90 -1.82 2164.75 0.12 322.61 2079.59 2164.74 -0.71 5.05 1.87 -1.79 2178.70 0.10 299.38 2093.54 2178.69 -0.69 5.08 1.85 -1.77 2192.70 0.10 252.80 2107.54 2192.69 -0.66 5.10 1.84 -1.77 2206.70 0.10 217.96 2121.54 2206.69 -0.65 5.13 1.85 -1.78 2220.65 0.12 207.65 2135.49 2220.64 -0.63 5.15 1.87 -1.81 2234.65 0.13 185.61 2149.49 2234.64 -0.63 5.18 1.89 -1.83 2248.65 0.15 171.70 2163.49 2248.64 -0.63 5.22 1.93 -1.87 2262.60 0.17 163.93 2177.44 2262.59 -0.64 5.26 1.96 -1.91 2276.55 0.18 136.70 2191.39 2276.54 -0.67 5.30 2.00 -1.94 2290.50 0.17 86.06 2205.34 2290.49 -0.70 5.34 2.03 -1.96 2304.45 0.15 39.11 2219.29 2304,44 -0.74 5.38 2.02 -1.94 2318.45 0.13 12.50 2233.29 2318.44 -0.75 5.41 2.00 -1.91 2332.30 0.13 3.36 2247.14 2332.29 -0.75 5.44 1.97 -1.88 2346.30 0.13 1.99 2261.14 2346.29 -0.75 5.47 1.94 -1.85 2360.25 0.13 8.55 2275.09 2360.24 -0.75 5.50 1.91 -1.82 2374.25 0.08 23.09 2289.09 2374.24 -0.75 5.53 1.89 -1.79 2388.25 0.07 29.55 2303.09 2388.24 -0.76 5.55 1.87 -1.78 2402.15 0.03 102.56 2316.99 2402.14 -0.77 5.56 1.87 -1.77 2416.15 0.12 156.75 2330.99 2416.14 -0.78 5.58 .1.89 -1.78 2430.10 0.27 125.11 2344.94 2430.09 -0.81 5.62 1.93 -1.82 2444.10 0.28 114.79 2358.94 2444.09 -0.87 5.69 1.98 -1.85 2458.05 0.27 108.66 2372.89 2458.04 -0.94 5.76 2.03 -1.87 2472.05 0.23 90.21 2386.89 2472.04 -1.00 5.82 2.06 -1.89 2486.00 0.17 75.42 2400.84 2485.99 -1.04 5.87 2.07 -1.88 2500.00 0.15 70.82 2414.84 2499.99 -1.08 5.90 2.08 -1.87 2514.00 0.13 70.30 2428.84 2513.99 -1.11 5.94 2.08 -1.86 2528.00 0.13 64.57 2442.84 2527.99 -1.14 5.97 2.09 -1.85 2541.95 0.10 51.12 2456.79 2541.94 -1.16 6.00 2.09 -1.83 2556.00 0.10 111.38 2470.84 2555.99 -1.18 6.02 2.09 -1.83 2570.10 0.20 171.73 2484.94 2570.09 -1.20 6.05 2.13 -1.86 2584.10 0.27 163.44 2498.94 2584.09 -1.22 6.11 2.18 -1.91 2598.10 0.28 161.57 2512.94 2598.09 -1.24 6.1$ 2.25 -1.98 2612.15 0.28 160.65 2526.99 2612.14 -1.27 6.25 2.31 -2.04 2626.15 0.28 154.60 2540.99 2626.14 -1.30 6.32 2.38 -2.10 2640.10 0.27 132.02 2554.94 2640.09 -1.35 6.38 2.45 -2.16 2654.05 0.22 106.39 2568.89 2654.04 -1.40 6.44 2.50 -2.19 U.45 U.45 SybyVyiS.C4 5yy I 1 b.45 N / V 1 / 51 . / 1 V VV 14y 1 1 5U.4LL 0.49 0.15 5959098.24 599116.48 N 70 17 51.710 W 149 11 50.421 0.52 0.17 5959098.24 599116.51 N 70 17 51.710 W 149 11 50.420 0.54 0.46 5959098.26 599116.54 N 70 17 51.710 W 149 11 50.419 0.56 0.77 5959098.28 599116.55 N 70 17 51.710 W 149 11 50.419 0.55 0.53 5959098.31 599116.54 N 70 17 51.711 W 149 11 50.419 0.53 0.35 5959098.32 599116.52 N 70 17 51.711 W 149 11 50.419 0.51 0.56 5959098.33 599116.50 N 70 17 51.711 W 149 11 50.420 0.49 0.43 5959098.31 599116.48 N 70 17 51.711 W 149 11 50.421 0.47 0.20 5959098.29 599116.47 N 70 17 51.711 W 149 11 50.421 0.46 0.35 5959098.26 599116.46 N 70 17 51.710 W 149 11 1 0.46 0.28 5959098.23 599116.46 N 70 17 51.710 W 149 11 ~1 0.47 0.21 5959098.19 599116.47 N 70 17 51.710 W 149 11 50.421 0.49 0.59 5959098.15 599116.49 N 70 17 51.709 W 149 11 50.420 0.53 1.07 5959098.14 599116.53 N 70 i 7 51.709 W i 49 11 50.419 0.56 0.92 5959098.16 599116.56 N 70 17 51.709 W 149 11 50.418 0.58 0.48 5959098.19 599116.57 N 70 17 51.710 W 149 11 50.418 0.58 0.15 5959098.22 599116.58 N 7017 51.710 W 14911 50.418 0.58 0.02 5959098.25 599116.58 N 70 17 51.710 W 149 11 50.418 0.59 0.11 5959098.28 599116.58 N 70 17 51.710 W 149 11 50.418 0.59 0.40 5959098.31 599116.59 N 7017 51.711 W 149 11 50.418 0.60 0.09 5959098.32 599116.59 N 70 17 51.711 W 149 11 50.417 0.61 0.49 5959098.33 599116.60 N 70 17 51.711 W 149 11 50.417 0.62 0.75 5959098.31 599116.61 N 70 17 51.711 W 149 11 50.417 0.65 1.28 5959098.28 599116.64 N 70 17 51.710 W 149 11 50.416 0.71 0.36 5959098.25 599116.70 N 70 17 51.710 W 149 11 50.414 0.77 0.22 5959098.23 599116.76 N 70 17 51.710 W 149 11 50.412 0.83 0.64 5959098.22 599116.82 N 70 17 51.710 W 149 11 50.411 0.88 0.56 5959098.22 599116.87 N 70 17 51.710 W 149 11 9 0.91 0.17 5959098.23 599116.91 N 70 17 51.710 W 149 11 0.95 0.14 5959098.25 599116.94 N 70 17 51.710 W 149 11 50.407 0.98 0.09 5959098.26 599116.97 N 70 17 51.710 W 149 11 50.406 1.00 0.29 5959098.27 599116.99 N 70 17 51.710 W 149 11 50.406 1.02 0.71 5959098.28 599117.01 N 70 17 51.710 W 149 11 50.405 1.04 1.23 5959098.25 599117.03 N 70 17 51.710 W 149 11 50.405 1.05 0.55 5959098.19 599117.04 N 70 17 51.710 W 149 11 50.404 1.07 0.10 5959098.13 599117.06 N 70 17 51.709 W 149 11 50.404 1.09 0.03 5959098.06 599117.09 N 70 17 51.708 W 149 11 50.403 1.12 0.21 5959098.00 599117.11 N 70 17 51.708 W 149 11 50.402 1.16 0.78 5959097.95 599117.15 N 70 17 51.707 W 149 11 50.401 1.21 0.85 5959097.92 599117.20 N 70 17 51,707 W 149 11 50.400 SurveyEditor Ver SP 1.0 Bld( doc4Ox_56) Z-O4~Z-O4~Z-O4A~Z-O4A Generated 8/25/2005 2:12 PM Page 5 of 14 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS "Gtibri.Ub U.LU yy.t51 LbtSL.tSy 2682.05 0.22 104.24 2596.89 2696.10 0.23 106.32 2610.94 2710.15 0.25 109.89 2624.99 2724.15 2738.15 2752.00 2765.80 2779.60 2793.40 2807.20 2821.05 2834.85 2848.65 2862.45 2876.30 2890.15 2903.95 2917.75 2931.55 2945.35 2959.05 2972.85 2986.55 3000.35 3014.15 3027.95 3041.75 3055.55 3069.35 3083.10 3096.90 3110.65 3124.45 3138.25 3152.05 3165.85 3179.65 3193.40 0.25 109.45 2638.99 0.23 112. 63 2652.99 0.23 121. 78 2666.84 0.22 125. 52 2680.64 0.23 126. 49 2694.44 0.27 128. 10 2708.24 0.30 136. 25 2722.04 0.38 141. 11 2735.89 0.42 130. 93 2749.69 0.40 123. 79 2763.49 0.40 0.40 0.42 0.40 0.40 0.42 0.43 0.47 0.53 0.53 0.48 0.48 0.52 0.52 0.53 0.52 0.53 0.53 0.52 0.52 0.52 0.48 0.48 0.48 0.55 3207.20 3221.00 0.62 0.58 125.68 126.71 127.06 128.02 128.93 129.18 129.53 142.70 146.44 135.24 131.98 132.52 134.50 135.37 135.49 134.93 135.16 135.29 135.24 136.21 135.99 135.17 136.95 140.52 149.65 158.38 164.71 2777.29 2791.14 2804.99 2818.79 2832.59 2846.39 2860.19 2873.89 2887.69 2901.38 2915.18 2928.98 2942.78 2956.58 2970.38 2984.18 2997.93 3011.73 3025.48 3039.28 3053.08 3066.88 3080.68 3094.48 3108.23 3122.03 3135.83 LbbC.U4 -1.45 b.4y L.b3 -Z.ZV I.Zb 2682.04 -1.50 6.54 2.57 -2.21 1.31 2696.09 -1.55 6.60 2.61 -2.22 1.36 2710.14 -1.61 6.66 2.65 -2.24 1.42 2724.14 -1.67 6.72 2.70 -2.26 1.47 2738.14 -1.73 6.78 2.75 -2.28 1.53 2751.99 -1.78 6.83 2.80 -2.31 1.58 2765.79 -1.83 6.89 2.85 -2.34 1.62 2779.59 -1.87 6.94 2.90 -2.37 1.67 2793.39 -1.92 7.00 2.96 -2.41 1.71 2807.19 -1.98 7.07 3.02 -2.45 1.76 2821.04 -2.04 7.15 3.10 -2.52 1.82 2834.84 -2.11 7.25 3.20 -2.58 1.89 2848.64 -2.19 7.35 3.29 -2.64 1.96 2862.44 -2.28 7.44 3.38 -2.70 2.04 2876.29 -2.36 7.54 3.48 -2.76 2.12 2890.14 -2.45 7.64 3.57 -2.82 2.20 2903.94 -2.53 7.74 3.67 -2.88 2.28 2917.74 -2.61 7.83 3.76 -2.94 2.35 2931.54 -2.69 7.93 3.86 -3.00 2.43 2945.34 -2.78 8.03 3.96 -3.06 2.51 2959.04 -2.86 8.14 4.07 -3.14 2.58 2972.84 -2.93 8.26 4.19 -3.24 2.65 2986.53 -3.02 8.39 4.31 -3.34 2.73 3000.33 -3.12 8.51 4.43 -3.42 2.82 3014.13 -3.21 8.63 4.55 -3.50 2.91 3027.93 -3.30 8.75 4.67 -3.58 2.99 3041.73 -3.40 8.87 4.79 -3.67 3.08 3055.53 -3.50 9.00 4.92 -3.76 3.17 3069.33 -3.59 9.12 5.04 -3.85 3.26 3083.08 -3.69 9.25 5.17 -3.94 3.35 3096.88 -3.79 9.38 5.30 -4.03 3.44 3110.63 -3.89 9.50 5.42 -4.12 3.53 3124.43 -3.98 9.63 5.55 -4.21 3.61 3138.23 -4.07 9.75 5.67 -4.30 3.70 3152.03 -4.17 9.87 5.79 -4.38 3.79 3165.83 -4.25 9.99 5.91 -4.47 3.87 3179.63 -4.34 10.11 6.02 -4.55 3.94 3193.38 -4.42 10.23 6.15 -4.66 4.01 3207.18 -4.49 10.37 6.28 -4.78 4.07 3220.98 -4.55 10.51 6.42 -4.92 4.12 V.GL 5y5yVy/.`JI 5`J`JI I/ .L5 IV /U I/ 51./U/ VY 14`J 115V.3y23 0.18 5959097.90 599117 .31 N 70 17 51 .707 W 149 11 50.397 0.09 5959097.88 599117 .36 N 70 17 51 .706 W 149 11 50.395 0.18 5959097.87 599117 .41 N 70 17 51 .706 W 149 11 50.394 0.01 5959097.85 599117 .47 N 70 17 51 .706 W 149 11 50.392 0.17 5959097.83 599117 .53 N 70 17 51 .706 W 149 11 50.390 0.26 5959097.80 599117 .58 N 70 17 51 .706 W 149 11 50.389 0.13 5959097.77 599117 .62 N 70 17 51 .705 W 149 11 50.388 0.08 5959097.74 599117 .67 N 70 17 51 .705 W 149 11 50.386 0.29 5959097.71 599117. 72 N 70 17 51 .705 W 149 11 50.385 0.36 5959097.66 599117. 77 N 70 17 51 .704 W 149 11 3 0.61 5959097.60 599117 .82 N 70 17 51 .704 W 149 11 2 0.59 5959097.53 599117. 89 N 70 17 51 .703 W 149 11 5 .380 0.40 5959097.47 599117. 97 N 70 17 51 .702 W 149 11 50.378 0.10 5959097.42 599118. 05 N 70 17 51 .702 W 149 11 50.375 0.05 5959097.36 599118. 13 N 70 17 51 .701 W 149 11 50.373 0.15 5959097.30 599118. 21 N 70 17 51 .701 W 149 11 50.371 0.15 5959097.24 599118. 29 N 70 17 51 .700 W 149 11 50.368 0.05 5959097.19 599118. 36 N 70 17 51 .699 W 149 11 50.366 0.15 5959097.12 599118. 44 N 70 17 51 .699 W 14911 50.364 0.07 5959097.06 599118. 52 N 70 17 51 .698 W 149 11 50.362 0.81 5959096.98 599118. 59 N 70 17 51 .697 W 149 11 50.360 0.49 5959096.89 599118. 66 N 70 17 51 .696 W 149 11 50.358 0.75 5959096.79 599118. 75 N 70 17 51 .696 W 149 11 50.355 0.42 5959096.71 599118. 83 N 70 17 51 .695 W 149 11 50.353 0.03 5959096.63 599118. 92 N 70 17 51 .694 W 149 11 50.350 0.32 5959096.55 599119. 01 N 70 17 51 .693 W 149 11 50.348 0.06 5959096.46 599119. 10 N 70 17 51 .692 W 149 11 50.345 0.07 5959096.37 599119. 19 N 70 17 51 .691 W 149 11 2 0.08 5959096.28 599119. 28 N 70 17 51 .690 W 149 11 5.40 ~ 0.07 5959096.20 599119. 37 N 70 17 51 .690 W 149 11 50.337 0.01 5959096.11 599119. 46 N 70 17 51 .689 W 149 11 50.335 0.07 5959096.02 599119. 55 N 70 17 51 .688 W 149 11 50.332 0.06 5959095.93 599119. 64 N 70 17 51 .687 W 149 11 50.329 0.01 5959095.84 599119. 73 N 70 17 51 .686 W 149 11 50.327 0.29 5959095.76 599119. 81 N 70 17 51 .685 W 149 11 50.324 0.11 5959095.67 599119. 89 N 70 17 51 .684 W 149 11 50.322 0.22 5959095.59 599119. 97 N 70 17 51 .684 W 149 11 50.320 0.78 5959095.49 599120. 04 N 70 17 51 .683 W 149 11 50.318 0.82 5959095.36 599120. 11 N 70 17 51 ,681 W 149 11 50.316 0.56 5959095.23 599120. 15 N 70 17 51 .680 W 149 11 50.315 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25/2005 2:12 PM Page 6 of 14 Measured Vertical Along Hole Comments Inclination Azimuth Sub-Sea ND ND Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de tt ft tt ft tt tt tt de 100 tt ttUS ftUS :iL:.i4.tSU U.btt 1/5.yb :i14y.bL ;SL34.// -4.btS 1U.b5 ti.54 •S.Ub 4.14 U.23L 5y5`JVyb.Uy 5yylLV.ltS IV /V 1/ bl .b/y VV 14y 11 bU.374 3248.60 0,57 186.48 3163.42 3248.57 -4.59 10.79 6.64 -5.19 4.14 0.77 5959094.95 599120.18 N 70 17 51 .677 W 149 11 50.314 3262.40 0.50 204.79 3177.22 3262.37 -4.57 10.92 6.72 -5.32 4.11 1.33 5959094.83 599120.15 N 70 17 51 .676 W 149 11 50.315 3276.10 0,48 227.70 3190.92 .3276.07 -4.51 11.03 6.75 -5.41 4.04 1.43 5959094.73 599120.08 N 70 17 51 .675 W 149 11 50.317 3289.85 0.63 245.74 3204.67 3289.82 -4.41 11.17 6.74 -5.48 3.93 1.66 5959094.66 599119.97 N 7017 51 .674 W 149 11 50.320 3303.60 0,95 258.84 3218.42 3303.57 -4.23 11.36 6.68 -5.53 3.75 2.66 5959094.61 599119.79 N 70 17 51 .674 W 149 11 50.326 3317.40 1.35 264.59 3232.22 3317.37 -3.96 11.63 6.56 •5.57 3.47 3.01 5959094.57 599119.52 N 70 17 51 .674 W 149 11 50.334 3331.15 1.75 268.02 3245.96 3331.11 -3.59 12.00 6.40 -5.59 3.10 2.99 5959094.54 599119.14 N 7017 51 .673 W 14911 50.344 3344.95 2.13 272.47 3259.75 3344.90 -3.13 12.47 6.18 -5.59 2.63 2.96 5959094.54 599118.68 N 70 17 51 .673 W 149 11 50.358 3358.75 2.47 277.88 3273.54 3358.69 -2.58 13.02 5.92 -5.54 2.08 2.92 5959094.58 599118.13 N 7017 51 .674 W 14911 50.374 3372.50 2.82 282.04 3287.28 3372.43 -1.94 13.66 5.62 -5.43 1.46 2.90 5959094.68 599117.50 N 70 17 51 .675 W 149 11 2 3386.30 3.20 284.15 3301.06 3386.21 -1.23 14.38 5.32 -5.26 0.75 2.87 5959094.84 599116.79 N 70 17 51 .677 W 149 11 3 3400.05 3.53 284.96 3314.79 3399.94 -0.43 15.19 5.06 -5.06 -0.03 2.42 5959095.03 599116.01 N 70 17 51 .679 W 149 11 5 .436 3413.85 3.80 285.02 3328.56 3413.71 0.44 16.07 4.91 -4.83 -0.88 1.96 5959095.25 599115.15 N 70 17 51 .681 W 149 11 50.460 3427.65 4.05 284.81 3342.33 3427.48 1.37 17.02 4.92 -4.59 -1.79 1.81 5959095.48 599114.24 N 70 17 51 .683 W 149 11 50.487 3441.45 4.33 282.96 3356.09 3441.24 2.37 18.03 5.15 -4.35 -2.77 2.25 5959095.71 599113.26 N 70 17 51 .686 W 149 11 50.516 3455.20 4.68 281.21 3369.80 3454.95 3.44 19.11 5.62 -4.12 -3.83 2.73 5959095.92 599112.20 N 70 17 51 .688 W 149 11 50.546 3468.95 5.07 281.35 3383.50 3468.65 4.60 20.27 6.31 -3.89 -4.97 2.84 5959096.13 599111.05 N 70 17 51 .690 W 149 11 50.580 3482.70 5.43 281.42 3397.19 3482.34 5.85 21.53 7.20 -3.64 -6.21 2.62 5959096.37 599109.81 N 70 17 51 .693 W 149 11 50.616 3496.50 5.67 281.03 3410.92 3496.07 7.18 22.87 8.24 -3.38 -7.52 1.76 5959096.61 599108.50 N 70 17 51 .695 W 149 11 50.654 3510.10 5.83 280.67 3424.46 3509.61 8.53 24.23 9.39 -3.13 -8.85 1.21 5959096.85 599107.16 N 70 17 51 .698 W 149 11 50.693 3523.65 6.03 280.86 3437.93 3523.08 9.93 25.63 10.62 -2.87 -10.23 1.48 5959097.09 599105.78 N 70 17 51 .700 W 149 11 50.733 3537.25 6.28 281.10 3451.45 3536.60 11.38 27.09 11.94 -2.59 -11.66 1.85 5959097.35 599104.35 N 70 17 51 .703 W 149 11 50.775 3550.85 6.52 280.49 3464.97 3550.12 12.89 28.60 13.35 -2.30 -13.15 1.83 5959097.61 599102.85 N 70 17 51 .706 W 149 11 50.818 3564.40 6.75 279.20 3478.43 3563.58 14.45 30.17 14.83 -2.04 -14.69 2.02 5959097.86 599101.31 N 70 17 51 .708 W 149 11 50.863 3578.00 7.02 277.76 3491.93 3577.08 16.07 31.80 16.40 -1.80 -16.30 2.36 5959098.08 599099.69 N 70 17 51 .711 W 149 11 50.910 3591.50 7.28 276.70 3505.33 3590.48 17.75 33.48 18.04 -1.59 -17.97 2.16 5959098.27 599098.02 N 70 17 51 .713 W 149 11 50.959 3605.00 7.57 276.07 3518.71 3603.86 19.50 35.22 19.75 -1.39 -19.70 2.23 5959098.44 599096.29 N 70 17 51 .715 W 149 11 51.009 3618.50 7.90 275.00 3532.09 3617.24 21.32 37.04 21.55 -1.22 -21.51 2.67 5959098.59 599094.48 N 70 17 51 .716 W 149 11 3632.10 8.22 273.12 3545.56 3630.71 23.22 38.95 23.44 -1.08 -23.42 3.05 5959098.70 599092.57 N 70 17 51 .718 W 149 11 17 3645.65 8.50 271.42 3558.96 3644.11 25.19 40.92 25.40 -1.00 -25.38 2.76 5959098.75 599090.60 N 70 17 51 .718 W 149 11 51.175 3659.25 8.78 270.10 3572.41 3657.56 27.23 42.96 27.44 -0.98 -27.43 2.52 5959098.75 599088.56 N 70 17 51 .719 W 149 11 51.234 3672.80 9.10 269.14 3585.79 3670.94 29.32 45.07 29.55 -0.99 -29.53 2.61 5959098.71 599086.46 N 70 17 51 .719 W 149 11 51.296 3686.35 9.43 268.78 3599.17 3684.32 31.49 47.25 31.73 -1.03 -31.71 2.47 5959098.64 599084.28 N 70 17 51 .718 W 149 11 51.359 3699.90 9.82 268.49 3612.53 3697.68 33.74 49.51 34.00 -1.09 -33.98 2.90 5959098.56 599082.01 N 70 17 51 .718 W 149 11 51.425 3708.35 10.07 268.28 3620.85 3706.00 35.19 50.97 35.45 -1.13 -35.44 2.99 5959098.50 599080.55 N 70 17 51 .717 W 149 11 51.468 3730.55 10.68 267.90 3642.69 3727.84 39.16 54.97 39.45 -1.26 -39.43 2.76 5959098.31 599076.56 N 70 17 51 .716 W 149 11 51.584 3752.15 11.30 267.79 3663.89 3749.04 43.24 59.09 43.57 -1.42 -43.55 2.87 5959098.10 599072.45 N 70 17 51 .714 W 149 11 51.704 3774.90 12.07 267.93 3686.17 3771.32 47.81 63.70 48.18 -1.59 -48.15 3.39 5959097.87 599067.85 N 70 17 51 .713 W 149 11 51.838 3798.25 12.83 267.61 3708.97 3794.12 52.80 68.73 53.21 -1.78 -53.18 3.27 5959097.60 599062.82 N 70 17 51. 711 W 149 11 51.985 3821.45 13.60 266.98 3731.55 3816.70 58.06 74.03 58.51 -2.04 -58.48 3.38 5959097.28 599057.53 N 7017 51 .708 W 14911 52.139 SurveyEditor Ver SP 1.0 BId( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25/2005 2:12 PM Page 7 of 14 Measured Vertical Along Hole Comments Inclination Azimuth Sub-Sea ND ND Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS :52344 ./5 14.45 Lbb.bV :i/b4.lb :S23Jy.:il b:5.b4 /y.1i25 li4.lb -L.:ib -b4.lL :S.li/ bybyVyb.23y byyUbl.yU N /U 1 / bl ./U5 W 14y 11 bL.JU4 3868 .05 15.22 266.12 3776.68 3861.83 69.54 85.65 70.12 -2.73 -70.07 3.35 5959096.44 599045.95 N 70 17 51 .701 W 149 11 52.477 3891 .25 15.90 265.50 3799.03 3884.18 75.68 91.87 76.34 -3.19 -76.28 3.02 5959095.90 599039.75 N 70 17 51 .697 W 149 11 52.658 3914 .50 16.58 265.20 3821.35 3906.50 82.08 98.37 82.84 -3.71 -82.76 2.95 5959095.29 599033.28 N 70 17 51 .692 W 149 11 52.847 3937 .70 17.20 265.14 3843.55 3928.70 88.72 105.11 89.58 -4.28 -89.47 2.67 5959094.63 599026.57 N 70 17 51 .686 W 149 11 53.043 3960 .90 17.90 264.83 3865.67 3950.82 95.60 112.11 96.57 -4.89 -96.44 3.04 5959093.93 599019.61 N 70 17 51 .680 W 149 11 53.246 3984 .10 18.68 264.08 3887.70 3972.85 102.76 119.39 103.84 -5.60 -103.69 3.51 5959093.13 599012.37 N 70 17 51 .673 W 149 11 53.457 4007. 20 19.38 263.06 3909.54 3994.69 110.13 126.92 111.36 -6.44 -111.17 3.35 5959092.18 599004.90 N 70 17 51 .665 W 149 11 53.676 4030 .30 20.10 262.11 3931.28 4016.43 117.75 134.72 119.14 -7.45 -118.91 3.41 5959091.07 598997.18 N 70 17 51 .655 W 149 11 53.901 4053. 30 20.97 261.34 3952.82 4037.97 125.59 142.79 127.19 -8.61 -126.89 3.96 5959089.81 598989.21 N 70 17 51 .644 W 149 11 54.134 4076. 35 21.78 260.90 3974.28 4059.43 133.74 151.19 135.56 -9.91 -135.19 3.58 5959088.40 598980.93 N 70 17 51 .631 W 149 11 6 4099. 70 22.38 260.87 3995.92 4081.07 142.25 159.97 144.30 -11.30 -143.86 2.57 5959086.89 598972.28 N 70 17 51 .617 W 149 11 ~8 4123. 90 23.03 261.08 4018.25 4103.40 151.30 169.31 153.62 -12.77 -153.09 2.71 5959085.31 598963.08 N 70 17 51 .603 W 149 11 54.897 4148. 60 23.77 261.42 4040.91 4126.06 160.82 179.12 163.40 -14.26 -162.78 3.05 5959083.69 598953.41 N 70 17 51 .588 W 149 11 55.180 4173. 80 24.38 261.70 4063.92 4149.07 170.81 189.40 173.67 -15.77 -172.95 2.46 5959082.05 598943.26 N 70 17 51 .573 W 149 11 55.476 4199. 05 25.13 261.92 4086.85 4172.00 181.10 199.97 184.23 -17.27 -183.41 2.99 5959080.40 598932.82 N 70 17 51 .558 W 149 11 55.781 4224. 20 25.78 262.11 4109.56 4194.71 191.62 210.78 195.02 -18.77 -194.12 2.60 5959078.76 598922.13 N 70 17 51 .544 W 149 11 56.093 4249. 35 26.22 262.24 4132.16 4217.31 202.37 221.80 206.04 -20.27 -205.04 1.76 5959077.12 598911.23 N 70 17 51 .529 W 149 11 56.412 4274. 20 26.52 262.26 4154.43 4239.58 213.12 232.84 217.07 -21.76 -215.98 1.21 5959075.48 598900.32 N 70 17 51 .514 W 149 11 56.731 4299. 00 26.72 262.25 4176.60 4261.75 223.95 243.95 228.18 -23.26 -226.99 0.81 5959073.84 598889.33 N 70 17 51 .500 W 149 11 57.051 4323. 85 26.88 262.32 4198.78 4283.93 234.88 255.16 239.38 -24.76 -238.09 0.66 5959072.19 598878.25 N 70 17 51 .485 W 149 11 57.375 4348. 70 27.00 262.41 4220.93 4306.08 245.85 266.42 250.63 -26.26 -249.25 0.51 5959070.55 598867.11 N 70 17 51 .470 W 149 11 57.700 4373. 50 27.02 262.48 4243.03 4328.18 256.84 277.68 261.89 -27.74 -260.42 0.15 5959068.92 598855.97 N 70 17 51 .455 W 149 11 58.026 4398. 30 27.00 262.51 4265.12 4350.27 267.83 288.94 273.15 -29.21 -271.58 0.10 5959067.30 598844.82 N 70 17 51 .441 W 149 11 58.351 4423. 15 26.97 262.52 4287.27 4372.42 278.83 300.22 284.42 -30.68 -282.76 0.12 5959065.69 598833.66 N 70 17 51 .427 W 149 11 58.677 4447. 95 26.97 262.65 4309.37 4394.52 289.80 31 i .47 295.67 -32.13 -293.91 0.24 5959064.09 598822.53 N 70 17 51 .412 W 149 11 59.002 4472. 80 27.07 262.87 4331.51 4416.66 300.83 322.76 306.95 -33.56 -305.11 0.57 5959062.52 598811.35 N 70 17 51 .398 W 149 11 59.329 4497. 60 27.22 263.01 4353.58 4438.73 311.89 334.07 318.27 -34.95 -316.34 0.66 5959060.98 598800.14 N 70 17 51 .385 W 149 11 4522. 45 27.35 263.11 4375.66 4460.81 323.02 345.46 329.66 -36.32 -327.65 0.55 5959059.45 598788.86 N 70 17 51 .371 W 149 11 4547. 25 27.33 263.31 4397.69 4482.84 334.16 356.85 341.05 -37.67 -338.96 0.38 5959057.96 598777.57 N 70 17 51 .358 W 149 12 5 4572. 05 27.28 263.60 4419.73 4504.88 345.30 368.23 352.42 -38.97 -350.26 0.57 5959056.51 598766.28 N 70 17 51 .345 W 149 12 0.645 4596. 75 27.38 263.77 4441.67 4526.82 356.42 379.57 363.76 -40.21 -361.53 0.51 5959055.12 598755.03 N 70 17 51 .333 W 149 12 0.973 4621. 50 27.47 263.92 4463.64 4548.79 367.59 390.97 375.16 -41.44 -372.87 0.46 5959053.74 598743.71 N 70 17 51 .321 W 149 12 1.304 4646. 20 27.55 264.16 4485.55 4570.70 378.79 402.38 386.57 -42.62 -384.22 0.55 5959052.41 598732.38 N 70 17 51 .309 W 149 12 1.635 4671. 00 27.68 264.32 4507.52 4592.67 390.07 413.87 398.07 -43.77 -395.65 0.60 5959051.11 598720.96 N 70 17 51 .298 W 149 12 1.968 4695. 70 27.77 264.33 4529.39 4614.54 401.36 425.36 409.56 -44.91 -407.09 0.36 5959049.82 598709.55 N 70 17 51 .287 W 149 12 2.301 4720. 50 27.82 264.38 4551.32 4636.47 412.72 436.93 421.12 -46.05 -418.60 0.22 5959048.53 598698.05 N 70 17 51 .275 W 149 12 2.637 4745. 25 27.85 264.48 4573.21 4658.36 424.07 448.48 432.68 -47.17 -430.10 0.22 5959047.26 598686.57 N 70 17 51 .264 W 149 12 2.972 4770. 00 27.80 264.49 4595.10 4680.25 435.42 460.04 444.23 -48.28 -441.60 0.20 5959046.00 598675.09 N 70 17 51 .253 W 149 12 3.307 4794. 80 27.65 264.45 4617.05 4702.20 446.76 471.57 455.77 -49.39 -453.08 0.61 5959044.73 598663.62 N 70 17 51 .242 W 149 12 3.642 4819. 55 27.52 264.45 4638.99 4724.14 458.02 483.04 467.23 -50.50 -464.49 0.53 5959043.47 598652.23 N 70 17 51 .232 W 149 12 3.974 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25/2005 2:12 PM Page 8 of 14 Measured Vertical Along Hole Comments Inclination Azimuth Sub-Sea ND ND Closure NS EW DLS Northing Fasting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS 4844.:10 2/.4:3 264.51 4(i(iU.yS 4/46.10 4fiy.24 4y4.4b 4/13.64 -b1.6U -4/5.135 U.:i13 by65U42.2;i 5511640.1113 N /U 1 / 51.221 W 14y 11 4.:10(1 4869.05 27.30 264. 54 4682.93 4768.08 480.42 505.83 490.02 -52.68 -487.18 0.53 5959040,99 598629.57 N 70 17 51.210 W 149 12 4.636 4893.85 27.12 264 .57 4704.98 4790.13 491.56 517.17 501.36 -53.76 -498.47 0.73 5959039,77 598618.30 N 70 17 51.199 W 149 12 4.965 4918.55 27.03 264. 68 4726.98 4812.13 502.61 528.41 512.60 -54.81 -509.66 0.42 5959038.57 598607.12 N 70 17 51.189 W 149 12 5.291 4943.40 27.07 264. 84 4749.11 4834.26 513.73 539.71 523.90 -55.84 -520.91 0.33 5959037,39 598595.88 N 7017 51.179 W 149 12 5.619 4968.15 27.08 264. 96 4771.15 4856.30 524.81 550.98 535.16 -56.85 -532.14 0.22 5959036.24 598584.68 N 70 17 51.169 W 149 12 5.946 4992.75 27.00 265. 10 4793.06 4878.21 535.82 562.16 546.34 -57.82 -543.28 0.42 5959035.12 598573.55 N 70 17 51.160 W 149 12 6.271 5017.10 26.85 265. 31 4814.77 4899.92 546.68 573.19 557.37 -58.74 -554.26 0.73 5959034.05 598562.58 N 70 17 51.150 W 149 12 6.591 5041.45 26.75 265. 49 4836.50 4921.65 557.50 584.17 568.34 -59.62 -565.21 0.53 5959033.03 598551.65 N 70 17 51.142 W 149 12 6.910 5065.85 26.65 265. 61 4858.30 4943.45 568.31 595.13 579.30 -60.47 -576.14 0.47 5959032.04 598540.73 N 70 17 51.133 W 149 12 7.229 5090.25 26.55 265. 66 4880.12 4965.27 579.08 606.06 590.22 -61.30 -587.03 0.42 5959031.06 598529.85 N 70 17 51.125 W 149 1 ~6 5114.65 26.45 265. 71 4901.95 4987.10 589.82 616.94 601.11 -62.12 -597.89 0.42 5959030.10 598519.01 N 7017 51.117 W i 4912 7.863 5139.05 26.30 265. 73 4923.81 5008.96 600.51 627.78 611.94 -62.93 -608.70 0.62 5959029.15 598508.21 N 70 17 51.109 W 149 12 8.178 5163.35 26.25 265. 66 4945,60 5030.75 611.12 638.54 622.69 -63.74 -619.42 0.24 5959028.20 598497.50 N 70 17 51.101 W 149 12 8.491 5187.70 26.17 265. 58 4967.45 5052.60 621.72 649.29 633.45 -64.56 -630.15 0.36 5959027.24 598486.79 N 70 17 51.093 W 149 12 8.803 5212.00 26.02 265. 54 4989.27 5074.42 632.26 659.98 644.13 -65.38 -640.80 0.62 5959026.27 598476.14 N 70 17 51.085 W 149 12 9.114 5236.40 25.92 265. 52 5011.21 5096.36 642.80 670.67 654.81 -66.22 -651.46 0.41 5959025.29 598465.50 N 70 17 51.077 W 149 12 9,424 5260.75 25.88 265. 48 5033.11 5118.26 653.28 681.30 665.45 -67.05 -662.06 0.18 5959024.32 598454.91 N 70 17 51.069 W 149 12 9.733 5285.10 25.88 265. 41 5055.02 5140.17 663.75 691.93 676.07 -67.90 -672.65 0.13 5959023.34 598444.33 N 70 17 51.060 W 149 12 10.042 5309.45 25.88 265. 30 5076.93 5162.08 674.23 702.56 686.70 -68.76 -683.25 0.20 5959022.34 598433.75 N 7017 51.052 W 14912 10.351 5333.80 25.83 265. 19 5098.84 5183.99 684.69 713.18 697.32 -69.64 -693.83 0.28 5959021.32 598423.18 N 70 17 51.043 W 149 12 10.660 5358.20 25.68 265. 08 5120.82 5205.97 695.13 723.78 707.92 -70.54 -704.39 0.65 5959020.28 598412.63 N 70 17 51.034 W 149 12 10.968 5382.60 25.57 264. 98 5142.82 5227.97 705.51 734.33 718.47 -71.45 -714.91 0.48 5959019.23 598402.13 N 70 17 51.025 W 149 12 11.274 5406.90 25.42 264. 92 5164.75 5249.90 715.81 744.79 728.93 -72.37 -725.33 0.63 5959018.17 598391.73 N 70 17 51.016 W 149 12 11.578 5431.35 25.27 264. 90 5186.85 5272.00 726.10 755.26 739.39 -73.30 -735.75 0.61 5959017.10 598381.32 N 70 17 51.007 W 149 12 11.882 5455.70 25.18 264. 88 5208.88 5294.03 736.31 765.64 749.77 •74.22 -746.09 0.37 5959016.04 598370.99 N 70 17 50.998 W 149 12 12.183 5480.05 25.10 264. 83 5230.92 5316.07 746.49 775.98 760.11 -75.15 -756.39 0.34 5959014.98 598360.71 N 7017 50.989 W 1491212.483 5504.45 25.00 264. 80 5253.02 5338.17 756.65 786.31 770.44 -76.08 -766.68 0.41 5959013.91 598350.43 N 70 17 50.980 W 149 12 3 5528.85 24.95 264. 80 5275.14 5360.29 766.79 796.62 780.75 -77.02 -776.94 0.20 5959012.84 598340.19 N 70 17 50.970 W 149 12 2 5553.35 24.87 264. 78 5297.36 5382.51 776.94 806.94 791.07 -77.96 -787.22 0.33 5959011.77 598329.92 N 70 17 50.961 W 149 12 1 82 5577.75. 24.80 264. 78 5319.51 5404.66 787.02 817.18 801.31 -78.89 -797.42 0.29 5959010.70 598319.73 N 70 17 50.952 W 149 12 13.679 5602.25 24.70 264. 75 5341.76 5426.91 797.10 827.44 811.57 -79.82 -807.64 0.41 5959009.63 598309.53 N 70 17 50.943 W 149 12 13.977 5626.65 24.58 264. 66 5363.93 5449.08 807.11 837.61 821.74 -80.76 -817.76 0.52 5959008.56 598299.42 N 70 17 50.934 W 149 12 14.272 5651.05 24.40 264. 64 5386.14 5471.29 817.05 847.73 831.86 -81.71 -827.84 0.74 5959007.48 598289.36 N 70 17 50.924 W 149 12 14.566 5675.55 24.23 264. 70 5408.47 5493.62 826.97 857.82 841.95 -82.64 -837.88 0.70 5959006.41 598279.33 N 7017 50.915 W 14912 14.858 5700.00 24.20 264. 70 5430.76 5515.91 836.83 867.84 851.97 -83.57 -847.87 0.12 5959005.36 598269.36 N 70 17 50.906 W 149 12 15.150 5724.15 24.07 264. 70 5452.80 5537.95 846.54 877.72 861.85 -84.48 -857.70 0.54 5959004.31 598259.54 N 70 17 50,897 W 149 12 15.436 5748.10 23.85 264. 69 5474.69 5559.54 856.10 887.45 871.57 -85.38 -867.38 0.92 5959003.29 598249.87 N 70 17 50.888 W 149 12 15.718 5772.10 23.73 264. 68 5496.65 5581.80 865.62 897.13 881.26 -86.28 -877.02 0.50 5959002.26 598240.24 N 70 17 50.879 W 149 12 15.999 5796.30 23.67 264. 69 5518.81 5603.96 875.19 906.85 890.98 -87.18 -886.71 0.25 5959001.23 598230.57 N 70 17 50.870 W 149 12 16.282 5821.10 23.57 264. 76 5541.53 5626.68 884.96 916.79 900.92 -88.09 -896.60 0.42 5959000.19 598220.69 N 70 17 50.861 W 149 12 16.570 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8125/2005 2:12 PM Page 9 of 14 Comments Measured Inclination Azimuth Sub•Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de n n tt ft ft n ft de 100 ft ftUS ftUS 5845.85 23.55 264.94 5564.22 5649.37 894.69 926.68 910.81 -88.98 -906.45 0.30 5958999.17 598210.85 N 70 17 50.853 W 149 12 16.857 5870.65 23.60 265.10 5586.95 5672.10 904.45 936.60 920.73 -89.84 -916.34 0.33 5958998.18 598200.98 N 70 17 50.844 W 149 12 17.145 5895.45 23.60 265.15 5609.67 5694.82 914.23 946.53 930.66 -90.68 -926.23 0.08 5958997.21 598191.10 N 70 17 50.836 W 149 12 17.434 5920.25 23.37 265.33 5632.42 5717.57 923.96 956.41 940.54 -91.50 -936.08 0.97 5958996.26 598181.27 N 70 17 50.828 W 149 12 17.721 5945.05 23.12 265.74 5655.21 5740.36 933.61 966.20 950.32 -92.27 -945.84 1.20 5958995.37 598171.52 N 70 17 50.820 W 149 12 18.005 5969.90 23.03 266.12 5678.07 5763.22 943.22 975.94 960.06 -92.96 -955.55 0.70 5958994.55 598161.82 N 70 17 50.814 W 149 12 18.288 5994.70 22.93 266.39 5700.90 5786.05 952.79 985.62 969.74 -93.59 -965.21 0.59 5958993.79 598152.16 N 70 17 50.807 W 149 12 18.570 6019.50 22.78 266.66 5723.75 5808.90 962.31 995.25 979.36 -94.17 -974.83 0.74 5958993.08 598142.56 N 70 17 50.802 W 149 12 18.850 6044.30 22.65 267.05 5746.63 5831.78 971.79 1004.83 988.93 -94.70 -984.39 0.80 5958992.43 598133.01 N 70 17 50.796 W 149 12 19.129 6069.10 22.55 267.52 5769.53 5854.68 981.23 1014.36 998.45 -95.15 -993.91 0.83 5958991.85 598123.49 N 70 17 50.792 W 149 12 19.407 6093.90 22.47 267.92 5792.44 5877.59 990.64 1023.86 1007.93 -95.53 -1003.40 0.70 5958991.35 598114.01 N 70 17 50.788 W 149 123 6118.70 22.38 268.28 5815.36 5900.51 1000.03 1033.32 1017.37 -95.84 -1012.85 0.66 5958990.91 598104.56 N 70 17 50.785 W 149 12 19.959 6143.70 22.18 268.70 5838.49 5923.64 1009.44 1042.80 1026.83 -96.09 -1022.33 1.02 5958990.53 598095.09 N 70 17 50.783 W 149 12 20.235 6168.90 21.90 269.17 5861.85 5947.00 1018.84 1052.25 1036.26 -96.27 -1031.78 1.31 5958990.23 598085.64 N 70 17 50.781 W 149 12 20.511 6194.10 21.72 269.57 5885.25 5970.40 1028.16 1061.61 1045.59 -96.37 -1041.14 0.93 5958990.01 598076.28 N 7017 50.780 W 14912 20.783 6219.25 21.55 269.83 5908.63 5993.78 1037.39 1070.89 1054.83 •96.42 -1050.41 0.78 5958989.83 598067.01 N 70 17 50.779 W 149 12 21.054 6244.35 21.33 270.12 5931.99 6017.14 1046.52 1080.06 1063.97 -96.42 -1059.59 0.97 5958989.71 598057.84 N 70 17 50.779 W 149 12 21.321 6269.50 21.07 270.37 5955.44 6040.59 1055.58 1089.16 1073.02 -96.39 -1068.68 1.09 5958989.63 598048.75 N 70 17 50.780 W 149 12 21.586 6294.65 20.75 270.48 5978.93 6064.08 1064.53 1098.13 1081.96 -96.32 -1077.66 1.28 5958989.58 598039.77 N 70 17 50.780 W 149 12 21.848 6319.70 20.55 270.57 6002.37 6087.52 1073.33 1106.97 1090.75 -96.24 -1086.49 0.81 5958989.54 598030.94 N 70 17 50.781 W 149 12 22.105 6344.80 20.47 270.82 6025.88 6111.03 1082.10 1115.76 1099.50 -96.13 -1095.29 0.47 5958989.53 598022.15 N 70 17 50.782 W 149 12 22.362 6369.85 20.55 271.09 6049.34 6134.49 1090.85 1124.54 1108.23 -95.99 -1104.06 0.49 5958989.56 598013.37 N 70 17 50.784 W 149 12 22.617 6394.95 20.67 271.33 6072.84 6157.99 1099.67 1133.37 1117.01 -95.80 -1112.90 0.58 5958989.63 598004.54 N 70 17 50.785 W 149 12 22.875 6419.95 20.73 271.60 6096.22 6181.37 1108.49 1142.21 1125.79 -95.57 -1121.73 0.45 5958989.74 597995.70 N 70 17 50.788 W 149 12 23.132 6444.65 20.68 271.86 6119.33 6204.48 1117.20 1150.94 1134.47 -95.31 -1130.46 0.42 5958989.89 597986.97 N 70 17 50.790 W 149 12 23.387 6469.30 20.45 272.05 6142.41 6227.56 1125.85 1159.60 1143.07 -95.01 •1139.11 0.97 5958990.07 597978.31 N 70 17 50.793 W 149 12 23.639 6494.00 20.23 272.33 6165.57 6250.72 1134.42 1168.19 1151.59 -94.69 -1147.69 0.97 5958990.29 597969.73 N 70 17 50.796 W 149 12 23.889 6518.65 20.12 272.78 6188.70 6273.85 1142.91 1176.69 1160.02 -94.31 -1156.18 0.77 5958990.55 597961.23 N 70 17 50.800 W 149 12 7 6543.35 19.97 273.36 6211.91 6297.06 1151.37 1185.15 1168.41 -93.85 -1164.64 1.01 5958990.89 597952.78 N 70 17 50.804 W 149 12 3 6568.05 19.77 274.01 6235.14 6320.29 1159.77 1193.55 1176.72 -93.31 -1173.02 1.21 5958991.32 597944.39 N 70 17 50.810 W 149 12 2.27 6592.70 19,60 274.73 6258.35 6343.50 1168.07 1201.85 1184.93 -92.68 -1181.30 1.20 5958991.85 597936.11 N 70 17 50.816 W 149 12 24.869 6617.35 19,50 275.49 6281.58 6366.73 1176.32 1210.10 1193.06 -91.95 -1189.51 1.11 5958992.47 597927.88 N 70 17 50.823 W 149 12 25.108 6642.05 19.48 276.24 6304.86 6390.01 1184.56 1218.34 1201.17 -91.11 -1197.71 1.02 5958993.21 597919.68 N 70 17 50.831 W 149 12 25.347 6666.85 19,38 277.04 6328.25 6413.40 1192.80 1226.59 1209.27 -90.15 -1205.90 1.15 5958994.05 597911.47 N 70 17 50.841 W 149 12 25.586 6691.55 19.18 277.84 6351.56 6436.71 1200.95 1234.75 1217.25 -89.10 -1213.99 1.34 5958995.00 597903.37 N 70 17 50.851 W 149 12 25.822 6716.25 18.90 278.61 6374.91 6460.06 1209.00 1242.80 1225.12 -87.94 -1221.96 1.52 5958996.05 597895.38 N 70 17 50.862 W 149 12 26.054 6740.95 18.67 279.35 6398.30 6483.45 1216.94 1250.76 1232.$7 -86.70 -1229.82 1.34 5958997.19 597887.51 N 70 17 50.875 W 149 12 26.283 6765.65 18.58 279.61 6421.70 6506.85 1224.80 1258.65 1240.54 -85.40 -1237.60 0.50 5958998.38 597879.71 N 70 17 50.887 W 149 12 26.510 6790.40 18.60 278.84 6445.16 6530.31 1232.67 1266.54 1248.23 -84.14 -1245.39 1.00 5958999.54 597871.91 N 70 17 50.900 W 149 12 26.737 6815.10 18.72 277.58 6468.56 6553.71 1240.56 1274.44 1255.96 -83.01 -1253.21 1.70 5959000.57 597864.08 N 70 17 50.911 W 149 12 26.965 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25!2005 2:12 PM Page 10 of 14 Measured Vertical Along Hole Comments Inclination Azimuth Sub-Sea TVD ND Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS lie-InSUrvey (itS:iy.i3b 1tS.ytS 1/(i. SU ti4yl.yy 118//.14 114tS.btl 11tSL.44 1Ld:i.ttl -tt'L.V:i -1"Lfil .lb 1./Ei by5yUU1. 44 GCT_MS 6864.65 19.33 275. 52 6515.41 6600.56 1256.69 1290.57 1271.83 -81.18 -1269 .24 1.92 5959002. 19 GCT MS 6889.35 19.67 274. 56 6538.70 6623.85 1264.94 1298.82 1279.98 -80.46 -1277 .45 1.89 5959002. 80 Top Window (Blind) 6890.00 19.67 274. 56 6539.31 6624.46 1265.16 1299.04 1280.20 -80.44 -1277 .67 0.00 5959002. 82 Base Window (Blind) 6907.00 21.59 270. 56 6555.22 6640.37 1271.14 1305.02 1286.15 -80.18 -1283 .65 14.00 5959003. 00 Inc Only (Blind) 6922.12 21.70 270. 56 6569.27 6654.42 1276.69 1310.60 1291.72 -80.13 -1289 .23 0.73 5959002. 98 6969.09 21.16 266. 00 6613.00 6698.15 1293.72 1327.75 1308.85 -80.63 -1306 .37 3.73 5959002. 24 7061.96 18.64 258. 00 6700.33 6785.48 1324.46 1359.32 1340.31 -84.89 -1337 .62 3.99 5958997. 58 7158.65 17.52 260. 00 6792.25 6877.40 1353.26 1389.32 1370.07 -90.63 -1367 .07 1.32 5958991. 45 7253.07 17.07 267. 70 6882.41 6967.56 1380.72 1417.35 1398.05 -93.65 -1394 .91 2.47 5958988. 06 Last Inc Only (Blind) MWD+IFR+MS MWD+IFR: AK MWD+IFR+MS 7349.45 7444.08 7539.49 7634.35 7732.11 7828.29 7922.42 8018.74 8114.47 8210.44 8305.99 8401.97 8497.32 8591.40 8687.74 8781.66 8877.65 8965.35 9032.04 9060.83 15.97 17.49 17.72 16.89 15.79 17.34 16.81 16.04 16.58 15.56 16.48 15.41 15.70 16.59 16.68 17.23 17.76 15.84 16.46 21.05 267.40 267.11 265.93 265.84 264.77 266.09 266.55 265.30 266.36 266.25 269.66 269.81 270.45 273.00 273.78 273.05 274.06 274.90 275.00 279.54 9091. 92 26.37 283.72 9124. 12 31.48 287.89 9156. 88 36.83 291.99 9191. 90 42.41 295.93 9220. 09 47.42 298.55 9252. 43 52.75 302.34 9283. 72 57.73 306.63 9316. 00 60.74 308.01 9348. 30 62.92 308.67 9379. 00 64.40 309.28 9411.42 66.92 310.56 6974.81 7065.43 7156.37 7246.94 7340.75 7432.93 7522.91 7615.30 7707.18 7799.40 7891.24 7983.53 8075.38 8165.75 8258.06 8347.90 8439.45 8523.40 8587.46 8614.72 8643.17 8671.35 8698.45 8725.42 8745.38 8766.13 8783.97 8800.48 8815.73 8829.35 8842.71 7059.96 1407.88 1444.76 1425.45 -94.82 -1422.29 7150.58 1434.86 1472.00 1452.69 -96.13 -1449.50 7241.52 1463.39 1500.85 1481.54 -97.88 -1478.30 7332.09 1491.23 1529.07 1509.76 -99.91 -1506.45 7425.90 1518.33 1556.57 1537.26 -102.15 -1533.86 7518.08 1545.35 1583.99 1564.67 -104.32 -1561.19 7608.06 1572.66 1611.63 1592.31 -106.10 -1588.77 7700.45 1599.54 1638.86 1619.54 -108.02 -1615.94 7792.33 1626.07 1665.75 1646.43 -109.98 -1642.75 7884.55 1652.31 1692.31 1672.99 -111.69 -1669.26 1.14 5958986.53 1.61 5958984.86 0.45 5958982.73 0.88 5958980.33 1.17 5958977.73 5y/t35Ei.l;i N /U 1 / SU.yL1 W 14y 1L'L/.lyti 597848.03 N 70 17 50.929 W 149 12 27.432 597839.81 N 70 17 50.936 W 149 12 27.672 597839.59 N 70 17 50.936 W 149 12 27.678 597833.60 N 70 17 50.939 W 149 12 27.852 597828.03 597810.90 597779.71 597750.34 597722.54 597695.18 597667.99 597639.22 597611.11 597583.73 1.66 5958975.20 597556.43 N 70 17 50.701 W 149 12 35.942 0.58 5958973.06 597528.88 N 70 17 50.683 W 149 12 36.746 0.88 5958970.77 597501.74 N 70 17 50.664 W 149 12 37.538 0.64 5958968.47 597474.96 N 70 17 50.645 W 149 12 38.320 1.06 5958966.41 597448.48 N 70 17 50.628 W 149 12 39.092 7976.39 1678.46 1718.68 1699,34 -112.61 -1695.60 1.38 5958965.14 8068.68 1704.71 1745.04 1725.65 -112.73 -1721.97 1.12 5958964.67 8160.53 1730.18 1770.61 1751.16 -112.67 -1747.54 0.35 5958964.40 8250.90 1756.29 1796.77 1777,20 -111.87 -1773.68 1.21 5958964.85 8343.21 1783.85 1824.35 1804.58 -110.23 -1801.21 0.25 5958966.12 8433.05 1811.23 1851.74 1831.77 -108.61 -1828.55 0.63 5958967.39 8524.60 1840.07 1880.59 1860.42 -106.81 -1857.35 0.64 5958968.80 8608.55 1865.42 1905.94 1885.54 -104.84 -1882.62 2.21 5958970.44 8672.61 1883.97 1924.49 1903.90 -103.24 -1901.10 0.93 5958971.80 8699.87 1893.21 1933.74 1912.99 -102.03 -1910.27 16.72 5958972.89 8728.32 1905.61 1946.23 1925.06 -99.46 -1922.49 17.94 5958975.29 8756.50 1920.90 1961.79 1939.79 -95.18 -1937.45 17.05 5958979.37 8783.60 1938.66 1980.17 1956.73 -88.87 -1954.71 17.77 5958985.46 8810.57 1959.77 2002.49 1976.69 -79.77 -1975.08 17.47 5958994.29 8830.53 1978.20 2022.39 1994.01 -70.65 -1992.76 18.94 5959003.18 8851.28 2000.60 2047.18 2014.95 -58.06 -2014.11 18.77 5959015.48 8869. i 2 2022.99 2072.87 2035.74 -43.49 -2035.27 19.49 5959029.77 8885.63 2046.48 2100.61 2057.50 -26.67 -2057.32 10.02 5959046.29 8900.88 2070.31 2129.08 2079.67 -9.01 -2079.65 6.99 5959063.66 8914.50 2093.18 2156.59 2101.06 8.30 -2101.04 5.14 5959080.68 8927.86 2117.45 2186.13 2123.87 27.25 -2123.69 8.56 5959099.33 597422.16 597395.80 597370.23 597344.08 597316.53 597289.18 597260.36 597235.07 597216.57 597207.39 597195.13 597180.12 597162.78 597142.29 597124.50 597102.98 597081.63 597059.36 597036.80 597015.19 N 70 17 50.939 W 149 12 28.015 N 70 17 50.934 W 149 12 28.515 N 70 17 50.892 W 149 12 29.426 N 70 17 50.836 W 149 12 30.284 N 70 17 50.806 W 149 12 31.096 N 70 17 50.794 W 149 124 N 70 17 50.782 W 149 12 7 N 70 17 50.764 W 149 12 33.526 N 70 17 50.744 W 149 12 34.347 N 70 17 50.722 W 149 12 35.146 N 70 17 50.619 W 149 12 39.860 N 70 17 50.618 W 149 12 40.629 N 70 17 50.618 W 149 12 41.374 N 70 17 50.626 W 149 12 42.136 N 70 17 50.642 W 149 12 42.939 N 70 17 50.658 W 149 12 43.736 N 70 17 50.676 W 149 12 44.575 N 70 17 50.695 W 149 12 45.312 N 70 17 50.711 W 149 12 1 N 70 17 50.723 W 149 12 N 70 17 50.748 W 149 12 46.474 N 70 17 50.790 W 149 12 46.910 N 70 17 50,852 W 149 12 47.413 N 70 17 50,941 W 149 12 48.007 N 70 17 51,031 W 149 12 48.523 N 70 17 51.155 W 149 12 49.145 N 70 17 51.298 W 149 12 49.762 N 70 17 51.463 W 149 12 50.405 N 70 17 51.637 W 149 12 51.056 N 70 17 51.807 W 149 12 51.680 596992.30 N 70 17 51.993 W 149 12 52.340 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25/2005 2:12 PM Page 11 of 14 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure. NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS y44:i.ti4 by.35 ;i11 .L/ tttSb4 ./t5 tiy:iy.y;3 L141.tS/ LLlti.Ll G14(i.y4 4b.yti -"L14(i.4;i /.// 5y5y11i5./:i 5`Jb`Jb`J.JI N /U 1 / 5"L.125/ W 14y 1L S:i.UU:i 9474.92 71.76 312 .02 8865 .13 8950.28 2165.44 2245.52 2169.34 66.43 -2168.32 8.08 5959137.92 596947.16 N 70 17 52.379 W 149 12 53.641 9508.05 74.33 311 .95 8874 .79 8959.94 2190.82 2277.21 2193.63 87.63 -2191.88 7.76 5959158.80 596923.33 N 70 17 52.587 W 149 12 54.328 9539.88 77.02 312 .73 8882 .66 8967.81 2215.40 2308.04 2217.32 108.40 -2214.67 8.78 5959179.26 596900.26 N 70 17 52.791 W 149 12 54.993 9572.53 79.65 313 .96 8889 .26 8974.41 2240.54 2340.02 2241.71 130.35 -2237.92 8.86 5959200.90 596876.73 N 70 17 53.007 W 149 12 55.671 9603.86 81.49 313 .32 8894 .40 8979.55 2264.74 2370.92 2265.37 151.67 -2260.29 6.21 5959221.93 596854.09 N 70 17 53.217 W 149 12 56.323 9635.66 83.84 311 .67 8898 .46 8983.61 2289.83 2402.46 2290.08 172.98 -2283.54 9.01 5959242.92 596830.56 N 70 17 53.426 W 149 12 57.001 9667.54 86.56 312 .84 8901 .12 8986.27 2315.17 2434.22 2315.22 194.34 -2307.05 9.28 5959263.97 596806.77 N 70 17 53.636 W 149 12 57.686 9699.84 88.96 313 .38 8902 .39 8987.54 2340.63 2466.50 2340.63 216.39 -2330.61 7.62 5959285.71 596782.92 N 70 17 53.853 W 149 12 58.373 9731.56 90.98 313 .92 8902 .40 8987.55 2365.47 2498.22 2365.59 238.29 -2353.56 6.59 5959307.30 596759.68 N 70 17 54.068 W 149 12 59.043 9762.77 94.66 315. 37 8900. 87 8986.02 2389.53 2529.38 2389.94 260.19 -2375.74 12.67 5959328.90 596737.23 N 70 17 54.284 W 149 129 9794.57 94.97 317. 50 8898. 20 8983.35 2413.36 2561.07 2414.23 283.14 -2397.57 6.75 5959351.57 596715.09 N 70 17 54.509 W 149 1 6 9826.46 94.73 317. 02 8895. 50 8980.65 2436.94 2592.85 2438.47 306.48 -2419.14 1.68 5959374.62 596693.22 N 70 17 54.739 W 149 13 0.955 9858.16 94.56 316. 85 8892. 94 8978.09 2460.52 2624.44 2462.86 329.57 -2440.71 0.76 5959397.41 596671.35 N 70 17 54.966 W 149 13 1.584 9890.50 94.31 317. 09 8890. 43 8975.58 2484.56 2656.68 2487.90 353.13 -2462.71 1.07 5959420.69 596649.04 N 70 17 55.197 W 149 13 2.226 9922.30 94.28 318. 22 8888. 05 8973.20 2507.95 2688.40 2512.46 376.57 -2484.07 3.54 5959443.84 596627.37 N 70 17 55.428 W 149 13 2.848 9953.59 95.45 317. 71 8885. 40 8970.55 2530.84 2719.57 2536.64 399.73 -2504.95 4.08 5959466.71 596606.19 N 70 17 55.656 W 149 13 3.457 9985.96 95.59 318. 21 8882. 29 8967.44 2554.49 2751.79 2561.80 423.66 -2526.53 1.60 5959490.35 596584.31 N 70 17 55.891 W 149 13 4.086 10018.17 95.55 318. 26 8879. 16 8964.31 2577.92 2783.85 2586.89 447.57 -2547.88 0.20 5959513.98 596562.64 N 70 17 56.126 W 149 13 4.709 10049.07 95.38 318. 52 8876. 22 8961.37 2600.34 2814.61 2611.06 470.57 -2568.30 1.00 5959536.70 596541.92 N 70 17 56.352 W 149 13 5.305 10081.19 95.21 317. 87 8873. 25 8958.40 2623.73 2846.59 2636.40 494.41 -2589.62 2.08 5959560.26 596520.29 N 70 17 56.586 W 149 13 5.927 10114.02 95.21 315. 23 8870. 27 8955.42 2648.27 2879.29 2663.00 518.14 -2612.11 8.01 5959583.69 596497.49 N 70 17 56.820 W 149 13 6.582 10144.39 94.66 312. 41 8867. 66 8952.81 2671.90 2909.54 2688.54 539.09 -2633.94 9.43 5959604.35 596475.39 N 70 17 57.026 W 149 13 7.219 10176.61 95.28 309. 90 8864. 87 8950.02 2697.88 2941.64 2716.49 560.21 -2658.10 8.00 5959625.15 596450.95 N 70 17 57.233 W 149 13 7.923 10209.13 94.93 306. 92 8861. 97 8947.12 2724.97 2974.03 2745.51 580.33 -2683.48 9.19 5959644.93 596425.31 N 70 17 57.431 W 149 13 8.663 10240.66 94.73 304. 61 8859. 32 8944.47 2752.02 3005.45 2774.34 598.69 -2708.97 7.33 5959662.95 596399.58 N 70 17 57.612 W 149 13 9.407 10272.48 93.90 301. 60 8856. 92 8942.07 2780.06 3037.18 2804.05 616.02 -2735.55 9.79 5959679.93 596372.78 N 70 17 57.782 W 149 13 10.182 10304.98 95.07 298. 97 8854. 38 8939.53 2809.40 3069.58 2834.95 632.36 -2763.52 8.83 5959695.89 596344.60 N 70 17 57.943 W 149 13 10.997 10336.22 94.79 296. 85 8851. 69 8936.84 2838.10 3100.71 2865.02 646.93 -2791.03 6.82 5959710.10 596316.91 N 70 17 58.086 W 149 13 9 10368.52 95.07 293. 02 8848. 92 8934.07 2868.39 3132.89 2896.51 660.49 -2820.20 11.85 5959723.27 596287.56 N 70 17 58.219 W 149 13 1:650 10400.25 94.86 289. 97 8846. 17 8931.32 2898.72 3164.50 2927.79 672.07 -2849.61 9.60 5959734.46 596258.00 N 70 17 58.333 W 149 13 13.507 10431.64 94.93 287. 99 8843. 49 8928.64 2929.09 3195.77 2958.91 682.24 -2879.18 6.29 5959744.24 596228.30 N 70 17 58.433 W 149 13 14.370 10463.75 93.45 285. 62 8841. 15 8926.30 2960.46 3227.80 2990.87 691.50 -2909.84 8.68 5959753.1 p 596197.53 N 70 17 58.524 W 149 13 15.263 10494.29 93.49 283. 05 8839. 30 8924.45 2990.55 3258.28 3021.35 699.05 -2939.37 8.40 5959760.25 596167.90 N 70 17 58.598 W 149 13 16.124 10527.38 94.14 281. 90 8837. 10 8922.25 3023.30 3291.30 3054.36 706.18 -2971.61 3.99 5959766.96 596135.58 N 70 17 58.668 W 149 13 17.064 10559.43 94.04 280 .09 8834. 81 8919.96 3055.11 3323.26 3086.30 712.28 3002.99 5.64 5959772.64 596104.12 N 70 17 58.728 W 149 13 17.979 10591.37 94.45 278 .18 8832 .45 8917.60 3086.88 3355.12 3118.07 717.33 3034.43 6.10 5959777.28 596072.62 N 70 17 58.777 W 149 13 18.896 10622.74 95.10 274 .49 8829. 83 8914.98 3118.13 3386.38 3149.10 720,78 -3065.50 11.90 5959780.32 596041.51 N 70 17 58.811 W 149 13 19.802 10655.16 95.65 273. 89 8826. 80 8911.95 3150.40 3418.65 3180.98 723.14 -3097.69 2.50 5959782.25 596009.30 N 70 17 58.834 W 149 13 20.740 10687.06 95.59 271. 66 8823. 67 8908.82 3182.12 3450.40 3212.21 724.68 -3129.40 6.96 5959783.37 595977.57 N 70 17 58.849 W 149 13 21.665 10717.80 95.73 268. 62 8820. 64 8905.79 3212.59 3480.99 3242.03 724.75 -3159.98 9.85 5959783.04 595946.99 N 70 17 58.850 W 149 13 22.556 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A1Z-04A Generated 8/25/2005 2:12 PM Page 12 of 14 Comments Measured Inclination Azimuth SulrSea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS lU/4`J~.y:1 y5.525 Lb9.y:i 25231/.4/ 25yUL.liL :iL44.L5 ;i57C.yli :SL/L.23:i /L:3.L3 -.ilyl.yL i5.J4 5y5y/251.1V 5y5y15.V25 IV /U 7/523.25:35 VV14yl:iL:i.423/ 10782.39 95.48 264.41 8814.34 8899.49 3276.07 3545.27 3303.64 720.51 -3224.11 4.67 5959777.96 595882.93 N 70 17 58.808 W 149 13 24.426 10813.08 95.62 264.04 8811.38 8896.53 3306.06 3575.82 3332.64 717.44 -3254.50 1.28 5959774.48 595852.59 N 70 17 58.777 W 149 13 25.312 10845.48 95.72 264.26 8808.17 8893.32 3337.70 3608.06 3363.27 714.15 -3286.57 0.74 5959770.78 10878.07 95.48 264 .72 8804.99 8890.14 3369.57 3640.50 3394.17 711.04 -3318.86 1.59 5959767.24 10909.10 93.21 263 .53 8802.64 8887.79 3399.94 3671.43 3423.61 707.87 -3349.64 8.25 5959763.66 10941.34 92.94 263 .53 8800.91 8886.06 3431.46 3703.63 3454.18 704.24 -3381.62 0.84 5959759.61 10973.93 92.73 263 .74 8799.30 8884.45 3463.36 3736.18 3485.13 700.64 -3413.97 0.91 5959755.58 11004.61 92.73 264 .96 8797.84 8882.99 3493.45 3766.82 3514.40 697.62 -3444.47 3.97 5959752.16 11036.83 92.94 265 .00 8796.25 8881.40 3525.12 3799.00 3545.28 694.80 -3476.53 0.66 5959748.92 11069.59 90.88 265 .05 8795.16 8880.31 3557.35 3831.74 3576.72 691.96 -3509.14 6.29 5959745.65 11100.39 89.17 265 .40 8795.14 8880.29 3587.68 3862.54 3606.34 689.40 -3539.83 5.67 5959742.69 11132.38 89.03 266 .01 8795.64 8880.79 3619.23 3894.53 3637.20 687.00 -3571.73 1.96 5959739.87 11165.19 88.45 265 .91 8796.37 8881.52 3651.61 3927.33 3668.91 684.69 -3604.45 1.79 5959737.13 11196.41 88.31 265 .98 8797.25 8882.40 3682.41 3958.54 3699.09 682.49 -3635.58 0.50 5959734.51 11228.47 89.72 266 .51 8797.80 8882.95 3714.08 3990.59 3730.14 680.39 -3667.57 4.70 5959731.99 11261.65 89.54 266 .69 8798.01 8883.16 3746.88 4023.77 3762.36 678.42 -3700.69 0.77 5959729.59 11291.65 87.14 266 .57 8798.88 8884.03 3776.53 4053.76 3791.49 676.66 -3730.62 8.01 5959727.43 11323.94 86.18 268 .24 8800.76 8885.91 3808.47 4085.99 3822.92 675.20 -3762.82 5.96 5959725.55 11356.63 85.29 267 .23 8803.20 8888.35 3840.79 4118.59 3854.76 673.91 -3795.39 4.11 5959723.83 11388.13 84.98 267 .81 8805.87 8891.02 3871.90 4149.98 3885.40 672.55 -3826.75 2.08 5959722.06 1 i 420.08 84.60 268 .26 8808.77 8893.92 3903.47 4181.80 3916.54 671.46 -3858.55 1.84 5959720.55 11452.53 84.05 266 .20 8811.98 8897.13 3935.45 4214.09 3948.05 669.90 -3890.80 6.54 5959718.56 11483.47 85.15 264 .09 8814.89 8900.04 3965.78 4244.89 3977.86 667.29 -3921.49 7.66 5959715.55 11515.59 85.18 263 .73 8817.60 8902.75 3997.16 4276.89 4008.67 663.90 -3953.32 1.12 5959711.74 11546.49 85.63 263 .05 8820.07 8905.22 4027.31 4307.69 4038.27 660.35 -3983.91 2.63 5959707.79 11578.62 85.39 263 .87 8822.59 8907.74 4058.68 4339.73 4069.08 656.70 -4015.73 2.65 5959703.72 11611.55 84.77 263 .99 8825.41 8910.56 4090.85 4372.53 4100.72 653.23 -4048.36 1.92 5959699.82 11642.63 84.56 264 .73 8828.30 8913.45 4121.25 4403.48 4130.65 650.19 -4079.15 2.47 5959696.37 11674.49 83.74 264 .27 8831.55 8916.70 4152.39 4435.17 4161.33 647.16 -4110.70 2.95 5959692.92 11706.35 83.63 265 .01 8835.05 8920.20 4183.52 4466.84 4192.02 644.20 -4142.23 2.33 5959689.55 11738.87 83.33 264 .37 8838.75 8923.90 4215.29 4499.15 4223.36 641.21 -4174.40 2.16 5959686.13 11770.12 83.43 264 .34 8842.35 8927.50 4245.78 4530.19 4253.44 638.15 -4205.29 0.33 5959682.67 11801.65 83.36 262 .88 8845.98 8931.13 4276.46 4561.51 4283.69 634.67 -4236.42 4.61 5959678.78 11834.40 83.39 261 .48 8849.75 8934,90 4308.16 4594.04 4314.92 630.24 -4268.65 4.25 5959673.93 11865.34 84.32 260 .14 8853.07 8938.22 4337.95 4624.81 4344.25 625.33 -4299.01 5.25 5959668.61 11897.40 84.50 260 .94 8856.19 8941.34 4368.82 4656.71 4374.65 620.08 -4330.48 2.55 5959662.96 11929.69 84.60 261 .68 8859.26 8944.41 4400.03 4688.86 4405.43 615.23 -4362.26 2.30 5959657.68 11960.60 84.57 262 .04 8862.17 8947.32 4429.97 4719.63 4434.99 610.87 -4392.72 1.16 5959652.92 11993.03 84.46 262 .20 8865.27 8950.42 4461.42 4751.91 4466.06 606.45 -4424.70 0.60 5959648.08 12025.16 84.32 262 .46 8868.41 8953.56 4492.59 4783.89 4496.89 602.18 -4456.39 0.92 5959643.39 595820.56 595788.32 595757.60 595725.66 595693.36 595662.91 595630.90 595598.33 595567.67 595535.81 595503.13 N 70 17 58.454 W 149 13 35.513 595472.04 N 70 17 58.432 W 149 13 36.420 595440.08 N 70 17 58.411 W 149 13 37.353 595406.99 N 70 17 58.392 W 149 13 38.318 595377.09 N 70 17 58.374 W 149 13 39.191 595344.91 N 70 17 58.360 W 149 13 40.130 595312.36 N 70 17 58.347 W 149 13 41.079 595281.03 N 70 17 58.333 W 149 13 41.993 595249.25 N 70 17 58.322 W 149 13 42.920 595217.03 N 70 17 58.307 W 149 13 43.861 595186.38 N 70 17 58.281 W 149 13 44.755 595154.60 N 70 17 58.248 W 149 13 45.683 595124.06 N 70 17 58.212 W 149 13 46.575 595092.29 N 70 17 58.176 W 149 13 47.502 595059.72 N 70 17 58.142 W 149 13 48.453 595028.97 N 70 17 58.112 W 149 131 594997.46 N 70 17 58.082 W 149 13 1 594965.98 N 70 17 58.053 W 149 13 51.190 594933.86 N 70 17 58.023 W 149 13 52.128 594903.01 N 70 17 57.993 W 149 13 53.028 594871.94 N 70 17 57.959 W 149 13 53.935 594839.77 N 70 17 57.915 W 14913 54.875 594809.48 N 70 17 57.866 W 149 13 55.760 594778.08 N 70 17 57.815 W 149 13 56.677 594746.37 N 70 17 57.767 W 149 13 57.604 594715.97 N 70 17 57.724 W 149 13 58.492 594684.06 N 70 17 57.680 W 149 13 59.424 594652.43 N 70 17 57.638 W 149 14 0.348 N 70 17 58.745 W 149 13 26.247 N 70 17 58.714 W 149 13 27.188 N 70 17 58.683 W 149 13 28.085 N 70 17 58.647 W 149 13 29.017 N 70 17 58.611 W 149 13 29.960 N 70 17 58.582 W 149 13 30.849 N 70 17 58.554 W 149 13 31.784 N 70 17 58.526 W 149 13 5 N 70 17 58.500 W 149 139 N 70 17 58.477 W 149 13 3 .559 SurveyEditor Ver SP 1.0 Bld{ doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25/2005 2:12 PM Page 13 of 14 Comments Measured Inclination Azimuth Sub-Sea ND Typ Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS 1LU5ES.3Ei ti;i.254 1ti1./:5 rift/l.ti:i tSyb(i./25 45L'LX52i 42514.yL 45Lb.25(i ~y25.125 -4425/.lti 1./li 5y5yb:itS.yy 5y4(i"Ll ./"L N /U 1 / 5/.5ytt VV 14y 14 1.L45 12088.42 83.88 262.60 8875.06 8960.21 4553.99 4846.80 4557.67 594.11 -4518.78 0.42 5959634.50 594590 .16 N 70 17 57.558 W 149 14 2.166 12120.81 83.94 263.43 8878.50 8963.65 4585.48 4879.00 4588.86 590.19 -4550.75 2.55 5959630.16 594558 .25 N 70 17 57.519 W 149 14 3.098 12151.58 83.74 264.18 8881.80 8966.95 4615.47 4909.60 4618.60 586.89 -4581.16 2.51 5959626.46 594527 .89 N 70 17 57.487 W 149 14 3.985 12183.96 83.50 264.46 8885.40 8970.55 4647.07 4941.78 4649.96 583.71 -4613.18 1.13 5959622.86 594495 .91 N 70 17 57.455 W 149 14 4.918 12216.18 83.84 265.35 8888.95 8974.10 4678.58 4973.80 4681.25 580.86 -4645.08 2.94 5959619.59 594464 .06 N 70 17 57.427 W 149 14 5.848 12247.28 84.36 266.00 8892.15 8977.30 4709.09 5004.73 4711.58 578.53 -4675.92 2.67 5959616.85 594433 .25 N 70 17 57.404 W 149 14 6.747 12279.47 84.26 265.87 8895.34 8980.49 4740.70 5036.77 4743.01 576.26 -4707.88 0.51 5959614.16 594401 .33 N 70 17 57.381 W 149 14 7.678 12312.68 83.84 265.89 8898.78 8983.93 4773.30 5069.80 4775.43 573.88 -4740.82 1.27 5959611.35 594368 .42 N 70 17 57.358 W 149 14 8.639 12343.43 84.25 265.86 8901.97 8987.12 4803.48 5100.38 4805.45 571.68 -4771.33 1.34 5959608.75 594337 .95 N 70 17 57.336 W 149 14 9.528 12375.99 84.12 266.90 8905.27 8990.42 4835.49 5132.77 4837.31 569.64 -4803.65 3.20 5959606.28 594305 .66 N 70 17 57.316 W 149 14 12407.68 84.01 265.91 8908.55 8993.70 4866.64 5164.29 4868.32 567.66 -4835.11 3.13 5959603.89 594274 .23 N 70 17 57.296 W 149 14 12439.18 85.77 265.60 8911.35 8996.50 4897.59 5195.67 4899.13 565.34 -4866.40 5.67 5959601.15 594242 .98 N 70 17 57.273 W 149 14 12.299 12471.55 85.32 266.03 8913.87 8999.02 4929.43 5227.94 4930.83 562.99 -4898.58 1.92 5959598.38 594210 .83 N 70 17 57.250 W 149 14 13.238 12503.04 84.43 265.92 8916.68 9001.83 4960.39 5259.30 4961.66 560.78 -4929.87 2.85 5959595.76 594179 .58 N 70 17 57.228 W 149 14 14.150 12534.50 84.36 266.21 8919.75 9004.90 4991.30 5290.61 4992.46 558.64 -4961.11 0.94 5959593.20 594148 .38 N 70 17 57.206 W 149 14 15.060 12584.88 84.25 266.74 8924.75 9009.90 5040.85 5340.74 5041.84 555.55 -5011.14 1.07 5959589.46 594098 .39 N 70 17 57.176 W" 149 14 16.519 Last MWD+IFR+MS 12605.06 84.01 267.37 8926.82 9011.97 5060.72 5360.82 5061.66 554.52 -5031.19 3.33 5959588.16 594078 .36 N 70 17 57.165 W 149 14 17.103 TD (Projected) 12660.00 84.01 267.37 8932.55 9017.70 5114.86 5415.46 5115.64 552.01 -5085.77 0.00 5959584.94 594023 .82 N 70 17 57.140 W 149 14 18.694 Survey Type: Definitive Survey NOTES: GYD GC SS - (Gyrodata - gyro singl e shots -- Gyrodata gyro orientation surveys. Not to be run above 70 degrees inclination. ) MWD +IFR + MS - (In-field referenced MWD with mutt-stat ion analysis and correction applied in post-processing. Assumes a BHA sag correction is applied to enh ance inclination accuracy. ) MWD +IFR: AK [Alaska] - (In-field referenced MWD in Alaska. Model takes account of increased violence of magnetic field disturbances in Alaska. Assumes a BHA sag correction is applied to enh ance inclination accuracy. ) Legal Description: Northing (Y) [ftUS] Easting (X) [ftUS] Surface : 4304 FSL 3562 FEL S19 T 11 N R12E UM 5959100.09 599115.97 BHL : 4855 FSL 3694 FEL S24 Ti 1 N R11 E UM 5959584.94 594023.82 SurveyEditor Ver SP 1.0 Bld( doc40x_56) Z-04~Z-04~Z-04A~Z-04A Generated 8/25/2005 2:12 PM Page 14 of 14 ~, SCHLUMBERGER Survey report Client ...................: BP Exploration (Alaska) Inc. Field ....................: Prudhoe Bay Well .....................: Z-04A API number ...............: 50-029-21990-01 Engineer .................: S. Moy Rig :...................... Nabors 7ES State :.................... Alaska ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS...........: Mason & Taylor ----- Depth reference ---- Permanent datum..........: Depth reference..........: GL above permanent.......: KB above permanent........ DF above permanent.......: Mean Sea Level Driller's Pipe Tally 57.47 ft N/A Top Drive ft 85.15 ft ----- Vertical section origin---------------- Latitude (+N/S-).........: 0.00 ft Departure (+E/W-)........: 0.00 ft Platform reference point--------------- Latitude (+N/S-).........: -999.25 ft Departure (+E/W-)........: -999.25 ft Azimuth from Vsect Origin to target: 279.89 degrees ~,`-' 1 l~ CJ [(c)2005 IDEAL ID9 1C 01.4] 22-Jul-2005 01:13:05 Page 1 of 6 Spud date ................: 11-Jul-2005 Last survey date.........: 22-Jul-2005 Total accepted surveys...: 142 MD of first survey.......: 6839.85 ft MD of last survey........: 12660.00 ft ----- Geomagnetic data ---------------------- Magnetic model...........: BGGM version 2004 Magnetic date ............: 11-Jul-2005 Magnetic field strength..: 1152.42 HCNT Magnetic dec (+E/W-)...... 24.44 degrees Magnetic dip .............: 80.79 degrees ----- MWD survey Reference Reference G ............... Reference H ............... Reference Dip ............. Tolerance of G............ Tolerance of H............ Tolerance of Dip.........: Criteria --------- 1002.68 meal 1152.42 HCNT 80.79 degrees (+/-) 2.50 meal (+/-) 6.00 HCNT (+/-) 0.45 degrees ----- Corrections ------------------- Magnetic dec (+E/W-).....: 24.44 degrees Grid convergence (+E/W-).. 0.00 degrees Total az corr (+E/W-)..... 24.44 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type .... I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction f 1 ~J • SCHLUMBERGER Survey Report 22-Jul-2005 01:13:05 Page 2 of 6 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S - +E/W- displ Azim (deg/ tool Corr - (ft) (deg} (deg) (ft) (ft) (ft} (f t) (ft) (ft) (deg) 100f) type (deg) 1 6839.85 18.98 276.50 0.00 6577.14 1228.32 -82.03 -1261.15 1263.81 266.28 0.00 TIP 2 6864.65 19.33 275.52 24.80 6600.57 1236.44 -81.18 -1269.24 1271.84 266.34 1.92 BP_GCT_ MS 3 6889.35 19.67 274.56 24.70 6623.85 1244.65 -80.45 -1277.46 1279.99 266.40 1.89 BP GCT MS 4 6890.00 19.67 274.56 0.65 6624.46 1244.87 -80.44 -1277.67 1280.20 266.40 0.00 Top of Window 5 6907.00 21.59 270.56 17.00 6640.37 1250.81 -80.18 -1283.65 1286.16 266.43 14.00 Bottom of W indow 6 6922.12 21.70 270.56 15.12 6654.43 1256.31 -80.12 -1289.23 1291.72 266.44 0.73 Inclina tion Only 7 6969.09 21.16 266.00 46.97 6698.15 1273.11 -80.63 -1306.37 1308.86 266.47 3.73 Inclina tion Only 8 7061.96 18.64 258.00 92.87 6785.49 1303.16 -84.89 -1337.62 1340.31 266.37 3.99 Inclina tion Only 9 7158.65 17.52 260.00 96.69 6877.40 1331.19 -90.63 -1367.07 137"0.07 266.21 1.32 Inclina tion Only 10 7253.07 17.07 267.70 94.42 6967.56 1358.10 -93.65 -1394.92 1398.06 266.16 2.47 Inclina tion Only 11 7349.45 15.97 267.40 96.38 7059.96 1384.87 -94.82 -1422.30 1425.45 266.19 1.14 Inclina tion Only 12 7444.08 17.49 267.11 94.63 7150.59 1411.45 -96.13 -1449.50 1452.69 266.21 1.61 MWD_IFR MS 13 7539.49 17.72 265.93 95.41 7241.53 1439.53 -97.88 -1478.31 1481.54 266.21 0.44 MWD_IFR _ _MS 14 7634.35 16.89 265.84 94.86 7332,09 1466.90 -99.91 -1506.45 1509.76 266.21 0.88 MWD_IFR _MS 15 7732.11 15.79 264.77 97.76 7425.90 1493.52 -102.15 -1533.86 1537.26 266.19 1.17 MWD IFR MS 16 7828.29 17.34 266.09 96.18 7518.09 1520.08 -104.32 -1561.19 1564.68 266.18 1.66 MWD_IFR _MS 17 7922.42 16.81 266.55 94.13 7608.07 1546.94 -106.10 -1588.78 1592.31 266.18 0.58 MWD_IFR _MS 18 8018.74 16.04 265.30 96.32 7700.46 1573.37 -108.02 -1615.94 1619.55 266.18 0.88 MWD_IFR _MS 19 8114.47 16.58 266.36 95.73 7792.34 1599.45 -109.97 -1642.75 1646.43 266.17 0.64 MWD_IFR _MS 20 8210.44 15.56 266.25 95.97 7884.55 1625.27 -111.69 -1669.26 1672.99 266.17 1.06 MWD IFR MS 21 8305.99 16.48 269.66 95.55 7976.40 1651.07 -112.60 -1695.60 1699.34 266.20 1.38 MWD_IFR _MS • 22 8401.97 15.41 269.81 95.98 8068.68 1677.02 -112.73 -1721.97 1725.66 266.25 1.12 MWD_IFR _MS 23 8497.32 15.70 270.45 95.35 8160.54 1702.22 -112.67 -1747.54 1751.17 266.31 0.35 MWD_IFR _MS 24 8591.40 16.59 273.00 94.08 8250.91 1728.11 -111.87 -1773.68 1777.21 266.39 1.21 MWD IFR ^ MS 25 8687.74 16.68 273.78 96.34 8343.22 1755.51 -110.23 -1801.21 1804.58 266.50 0.25 MWD IFR _ MS 26 8781.66 17.23 273.05 93.92 8433.05 1782.73 -108.61 -1828.55 1831.77 266.60 0.63 MWD_IFR _MS 27 8877.65 17.76 274.06 95.99 8524.60 1811.41 -106.81 -1857.35 1860.42 266.71 0.64 MWD IFR MS ` 28 8965.35 15.84 274.90 87.70 8608.56 1836.64 -104.84 -1882.62 1885.54 266.81 2.21 MWD_IFR _ MS 29 9032.04 16.46 275.00 66.69 8672.61 1855.12 -103.24 -1901.10 1903.90 266.89 0.93 Inclination Only 30 9060.83 21.05 279.54 28.79 8699.87 1864.36 -102.03 -1910.27 1912.99 266.94 16.72 MWD IFR [(x.)2005 IDEAL ID9 1C 01.4] SCHLUMBERGER Survey Report 22-Jul-2005 01:13:05 Page 3 of 6 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (f t) (ft) (f t) (f t) (f t) (f t) (deg) 100f) type (deg) 31 9091.92 26.37 283.72 31.09 8728.33 1876.84 -99.46 -1922.49 1925.06 267.04 17.94 MWD _IFR 32 9124.12 31.48 287.89 32.20 8756.50 1892.31 -95.18 -1937.45 1939.79 267.19 17.05 MWD _IFR 33 9156.88 36.83 291.99 32.76 8783.61 1910.40 -88.87 -1954.71 1956.73 267.40 17.77 MWD _IFR 34 9191.90 42.41 295.93 35.02 8810.58 1932.03 -79.77 -1975.08 1976.70 267.69 17.47 MWD _IFR 35 9220.09 47.42 298.55 28.19 8830.54 1951.02 -70.65 -1992.76 1994.01 267.97 16.94 MWD IFR 36 9252.43 52.75 302.34 32.34 8851.28 1974.21 -58.06 -2014.12 2014.95 268.35 18.77 MWD _IFR • 37 9283.72 57.73 306.63 31.29 8869.12 1997.56 -43.49 -2035.27 2035.74 268.78 19.49 MWD _IFR _MS 38 9316.00 60.74 308.01 32.28 8885.63 2022.17 -26.67 -2057.33 2057.50 269.26 10.02 MWD _IFR _MS 39 9348.30 62.92 308.67 32.30 8900.88 2047.20 -9.01 -2079.66 2079.68 269.75 6.99 MWD_ IFR _MS 40 9379.00 64.40 309.28 30.70 8914.50 2071.25 8.30 -2101.04 2101.06 270.23 5.14 MWD IFR MS 41 9411.42 66.92 310.56 32.42 8927.86 2096.82 27.25 -2123.69 2123.87 270.74 8.56 MWD_ IFR _MS 42 9443.84 69.35 311.27 32.42 8939.94 2122.60 46.96 -2146.43 2146.94 271.25 7.77 MWD_ IFR _MS 43 9474.92 71.76 312.02 31.08 8950.28 2147.51 66.43 -2168.33 2169.34 271.75 8.08 MWD_ IFR _MS 44 9508.05 74.33 311.95 33.13 8959.94 2174.36 87.63 -2191.88 2193.63 272.29 7.76 MWD_ IFR _MS 45 9539.88 77.02 312.73 31.83 8967.82 2200.38 108.40 -2214.67 2217.32 272.80 8.78 MWD IFR MS 46 9572.53 79.65 313.96 32.65 8974.42 2227.05 130.35 -2237.92 2241.72 273.33 8.86 MWD_ IFR _MS 47 9603.86 81.49 313.32 31.33 8979.55 2252.75 151.67 -2260.29 2265.37 273.84 6.21 MWD_ IFR _MS 48 9635.66 83.84 311.67 31.80 8983.61 2279.32 172.98 -2283.54 2290.09 274.33 9.01 MWD_ IFR _MS 49 9667.54 86.56 312.84 31.88 8986.28 2306.15 194.34 -2307.05 2315.22 274.82 9.28 MWD_ IFR _MS 50 9699.84 88.96 313.38 32.30 8987.54 2333.15 216.39 -2330.61 2340.64 275.30 7.62 MWD IFR MS 51 9731.56 90.98 313.92 31.72 8987.56 2359.52 238.29 -2353.56 2365.60 275.78 6.59 MWD_ IFR _MS • 52 9762.77 94.66 315.37 31.21 8986.02 23$5.12 260.19 -2375.74 2389.94 276.25 12.67 MWD_ IFR _MS 53 9?94.57 94.97 317.50 31.80 8983.35 2410.58 283.15 -2397.58 2414.24 276.74 6.75 MWD_ IFR _MS 54 9826.46 94.73 317.02 31.89 8980.66 2435.83 306.48 -2419.14 2438.48 277.22 1.68 MWD_ IFR_ MS 55 9858.16 94.56 316.85 31.70 8978.09 2461.05 329.57 -2440.72 2462.87 277.69 0.76 MWD IFR MS 56 9890.50 94.31 317.09 32.34 8975.59 2486.77 353.14 -2462.72 2487.91 278.16 1.07 MWD_ IFR_ MS 57 9922.30 94.28 318.22 31.80 8973.21 2511.84 376.57 -2484.08 2512.46 278.62 3.54 MWD_ IFR_ MS 58 9953.59 95.45 317.71 31.29 8970.55 2536.38 399.73 -2504.95 2536.65 279.07 4.08 MWD_ IFR_ MS 59 9985.96 95.59 318.21 32.37 8967.44 2561.75 423.66 -2526.53 2561.80 279.52 1.60 MWD_ IFR_ MS 60 10018.17 95.55 318.26 32.21 8964.31 2586.89 447.57 -2547.88 2586.89 279.96 0.20 MWD IFR MS [(c)2005 IDEAL ID9 1C 01.4] SCHLUMBERGER Survey Report 22-Jul-2005 01:13:05 Page 4 of 6 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 61 10049.07 95.38 318.52 30.90 8961.37 2610.96 470.57 -2566.31 2611.06 280.38 1.00 MWD _IFR _MS 62 10081.19 95.21 317.87 32.12 8958.41 2636.06 494.41 -2589.63 2636.40 280.81 2.08 MWD_ IFR _MS 63 10114.02 95.21 315.23 32.83 8955.43 2662.29 518.14 -2612.11 2663.00 281.22 8.01 MWD_ IFR _MS 64 10144.39 94.66 312.41 30.37 8952.81 2687.39 539.09 -2633.94 2688.54 281.57 9.43 MWD_ IFR MS 65 10176.61 95.28 309.90 32.22 8950.02 2714.82 560.21 -2658.11 2716.50 281.90 8.00 MWD IFR MS 66 10209.13 94.93 306.92 32.52 8947.13 2743.28 580.33 -2683.48 2745.52 282.20 9.19 MWD_ IFR _MS 67 10240.66 94.73 304.61 31.53 8944.47 2771.55 598.69 -2708.98 2774.34 282.46 7.33 MWD_ IFR MS ^ 68 10272.48 93.90 301.60 31.82 8942.08 2800.71 616.02 -2735.55 2804.06 282.69 9.79 MWD_ IFR _ MS 69 10304.98 95.07 298.97 32.50 8939.53 2831.07 632.36 -2763.53 2834.95 282.89 8.83 MWD_ IFR _MS 70 10336.22 94.79 296.85 31.24 8936.85 2860.67 646.93 -2791.03 2865.02 283.05 6.82 MWD IFR MS 71 10368.52 95.07 293.02 32.30 8934.07 2891.74 660.49 -2820.20 2896.52 283.18 11.85 MWD_ IFR _MS 72 10400.25 94.86 289.97 31.73 8931.33 2922.70 672.07 -2849.61 2927.79 283.27 9.60 MWD_ IFR MS ^ 73 10431.64 94.93 287.99 31.39 8928.65 2953.58 682.24 -2879.19 2958.91 283.33 6.29 MWD_ IFR MS 74 10463.75 93.45 285.62 32.11 8926.30 2985.37 691.50 -2909.84 2990.88 283.37 8.68 MWD_ IFR MS ~ 75 10494.29 93.49 283.05 30.54 8924.45 3015.76 699.05 -2939.37 3021.35 283.38 8.40 MWD 1FR MS 76 10527.38 94.14 281.90 33.09 8922.25 3048.74 706.18 -2971.61 3054.37 283.37 3.99 MWD_ IFR MS ~ 77 10559.43 94.04 280.09 32.05 8919.96 3080.70 712.28 -3002.99 3086.31 283.34 5.64 MWD IFR MS 78 10591.37 94.45 278.18 31.94 8917.60 3112.55 717.33 -3034.44 3118.07 283.30 6.10 MWD_ IFR ~ MS 79 10622.74 95.10 274.49 31.37 8914.99 3143.75 720.78 -3065.50 3149.10 283.23 11.90 MWD IFR ~ MS 80 10655.16 95.65 273.89 32.42 8911.95 3175.86 723.14 -3097.69 3180.98 283.14 2.50 MWD IFR MS 81 10687.06 95.59 271.66 31.90 8908.83 3207.36 724.68 -3129.40 3212.21 283.04 6.96 MWD_ IFR_ MS 82 10717.80 95.73 268.62 30.74 8905.79 3237.51 724.75 -3159.99 3242.03 282.92 9.85 MWD_ IFR_ MS 83 10749.93 95.58 265.93 32.13 8902.63 3268.71 723.23 -3191.92 3272.83 282.77 8.34 MWD_ IFR_ MS 84 10782.39 95.48 264.41 32.46 8899.50 3299.95 720.51 -3224.11 3303.64 282.60 4.67 MWD_ IFR_ MS 85 10813.08 95.62 264.04 30.69 8896.53 3329.37 717.44 -3254.51 3332.65 282.43 1.28 MWD 1FR MS 86 10845.48 95.72 264.26 32.40 8893.33 3360.40 714.15 -3286.58 3363.27 282.26 0.74 MWD IFR MS 87 10878.07 95.48 264..72 32.59 8890.15 3391.67 711.04 -3318.86 3394.18 282.09 1.59 MWD_ IFR_ MS 88 10909.10 93.21 263.53 31.03 8887.80 3421.44 707.87 -3349.64 3423.62 281.93 8.25 MWD_ IFR ' MS 89 10941.34 92.94 263.53 32.24 8886.07 3452.33 704.24 -3381.63 3454.18 281.76 0.84 MWD_ IFR_ MS 90 10973.93 92.73 263.74 32.59 8884.46 3483.58 700.64 -3413.98 3485.13 281.60 0.91 MWD IFR MS 1r~ u • [(c)2005 IDEAL ID9 1C 01.4] SCHLUMBERGER Survey Report 22 -Jul-2005 01:13:05 Page 5 of 6 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +EfW- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (f t) (ft) (ft) (f t) (f t) (ft) (deg) l0of) type (deg) 91 11004.61 92.73 264.96 30.68 8883.00 3513.11 697.62 -3444.47 3514.41 281.45 3.97 MWD _IFR MS ~ 92 11036.83 92.94 265.00 32.22 8881.40 3544.20 694.80 -3476.53 3545.28 281.30 0.66 MWD IFR MS y 93 11069.59 90.88 265.05 32.76 8880.31 3575.85 691.96 -3509.15 3576.72 281.15 6.29 MWD _IFR _MS 94 11100.39 89.17 265.40 30.80 8880.30 3605.64 689.40 -3539.84 3606.34 281.02 5.67 MWD _IFR _MS 95 11132.38 89.03 266.01 31.99 8880.80 3636.65 687.00 -3571.73 3637.21 280.89 1.96 MWD IFR MS 96 11165.19 88.45 265.91 .32.81 $881.52 3668.49 684.69 -3604.46 3668.91 280.76 1.79 MWD _IFR _MS 97 11196.41 88.31 265.98 31.22 8882.40 3698.78 682.49 -3635.58 3699.09 280.63 0.50 MWD _IFR _MS 98 11228.47 89.72 266.51 32.06 8882.96 3729.93 680.39 -3667.57 3730.15 280.51 4.70 MWD _IFR _MS 99 11261.65 89.54 266.69 33.18 8883.17 3762.22 678.42 -3700.69 3762.36 280.39 0.77 MWD_ IFR _MS 100 11291.65 87.14 266.57 30.00 8884.04 3791.41 676.66 -3730.62 3791.49 280.28 8.01 MWD IFR MS 101 11323.94 86.18 268.24 32.29 8885.92 3822.88 675.20 -3762.82 3822.92 280.17 5.96 MWD_ IFR _MS 102 11356.63 85.29 267.23 32.69 8888.35 3854.74 673.91 -3795.40 3854.76 280.07 4.11 MWD_ IFR _MS 103 11388.13 84.98 267.81 31.50 8891.02 3885.40 672.55 -3826.75 3885.41 279.97 2.08 MWD_ IFR _MS 104 11420.08 84.60 268.26 31.95 8893.92 3916.54 671.46 -3858.55 3916.54 279.87 1.84 MWD_ IFR _MS 105 11452.53 84.05 266.20 32.45 8897.13 3948.05 669.90 -3890.81 3948.05 279.77 6.54 MWD IFR MS 106 11483.47 85.15 264.09 30.94 8900.04 3977.83 667.29 -3921.49 3977.86 279.66 7.66 MWD_ IFR _MS 107 11515.59 85.18 263.73 32.12 8902.75 4008.60 663.90 -3953.32 4008.68 279.53 1.12 MWD_ IFR _MS 106 11546.49 85.63 263.05 30.90 8905.23 4038.13 660.35 -3983.92 4038.27 279.41 2.63 MWD_ IFR _MS 109 11578.62 85.39 263.87 32.13 8907.74 4068.86 656.70 -4015.74 4069.08 279.29 2.65 MWD_ IFR _MS 110 11611.55 84.77 263.99 32.93 8910.57 4100.40 653.23 -4048.36 4100.73 279.17 1.92 MWD_ IFR _MS 111 11642.63 84.56 264.73 31.08 9913.46 4130.21 650.19 -4079.16 4130.65 279.06 2.47 MWD_ IFR _MS • 112 11674.49 83.74 264.27 31.86 8916.70 4160.77 647.16 -4110.71 4161.34 278.95 2.95 MWD IFR M5 113 11706.35 83.63 265.01 31.86 8920.21 4191.32 644.20 -4142.23 4192.03 278.84 2.33 MWD_ IFR _MS 114 11738.$7 83.33 264.37 32.52 8923.90 4222.50 641.21 -4174.41 4223.36 278.73 2.16 MWD_ IFR _MS 115 11770.12 83.43 264.34 31.25 8927.50 4252.41 638.15 -4205.30 4253.44 278.63 0.33 MWD IFR MS 116 11801.65 83.36 262.88 31.53 8931.13 4282.47 634.67 -4236.42 4283.70 278.52 4.61 MWD_ IFR _MS 117 11834.40 83.39 261.48 32.75 8934.91 4313.46 630.24 -4268.65 4314.92 278.40 4.25 MWD_ IFR _MS 118 11865.34 84.32 260.14 30.94 9938.22 4342.53 625.33 -4299.02 4344.26 278.28 5.25 MWD IFR MS 119 11897.40 84.50 260.94 32.06 8941.34 4372.64 620.08 -4330.49 4374.66 278.15 2.55 MWD_ IFR_ MS 120 11929.69 84.60 261.68 32.29 8944.41 4403.11 615.23 -4362.26 4405.44 278.03 2.30 MWD IFR MS [(c)2005 IDEAL ID9 1C 01.4] SCHLUMBERGER Survey Report 22-Jul-2005 01:13:05 Page 6 of 6 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool ## depth angle angle length depth section +NJS- +EJW- displ Azim (degJ tool Corr - (ft) (deg) (deg) (ft) (ft) (f t) (ft) (ft) (ft) (deg) 100f) type (deg) 121 11960.60 84.57 262.04 30.91 8947.33 4432.37 610.87 -4392.73 4435.00 277.92 1.16 MWD _IFR _MS 122 11993.03 84.46 262.20 32.43 8950.43 4463.11 606.45 -4424.70 4466.07 277.80 0.60 MWD _IFR _MS 123 12025.16 84.32 262.46 32.13 8953.57 4493.60 602.18 -4456.39 4496.89 277.70 0.92 MWD IFR MS 124 12056.36 83.84 262.73 31.20 8956.79 4523.23 598.18 -4487.17 4526.86 277.59 1.76 MWD _IFR _MS 125 12088.42 83.88 262.60 32.06 8960.21 4553.67 594.11 -4518.78 4557.67 277.49 0.42 MWD IFR MS 126 12120.81 83.94 263.43 32.39 8963.65 4584.49 590.19 -4550.75 4588.86 277.39 2.55 MWD _IFR _MS 127 12151.58 83.74 264.18 30.77 8966.95 4613.89 586.89 -4581.16 4618.60 277.30 2.51 MWD _IFR _MS 128 12183.96 83.50 264.46 32.38 8970.55 4644.89 583.71 -4613.19 4649.97 277.21 1.13 MWD _IFR _MS 129 12216.18 83.84 265.35 32.22 8974.10 4675.82 580.86 -4645.08 4681.26 277.13 2.94 MWD_ IFR _MS 130 12247.28 84.36 266.00 31.10 8977.30 4705.81 578.53 -4675.93 4711.58 277.05 2.67 MWD IFR MS 131 12279.47 84.26 265.87 32.19 8980.49 4736.89 576.26 -4707.88 4743.02 276.98 0.51 MWD ' IFR _MS 132 12312.68 83.84 265.89 33.21 8983.93 4768.94 573.88 -4740.83 4775.43 276.90 1.27 MWD _ IFR _MS 133 12343.43 84.25 265.86 30.75 8987.13 4798.62 571.68 -4771.33 4805.46 276.83 1.34 MWD_ IFR _MS 134 12375.99 84.12 266.90 32.56 8990.42 4830.11 569.64 -4803.66 4837.32 276.76 3.20 MWD_ IFR _MS 135 12407.68 84.01 265.91 31.69 8993.70 4860.76 567.66 -4835.12 4868.33 276.70 3.13 MWD IFR MS 136 12439.18 85.77 265.60 31.50 8996.51 4891.19 565.34 -4866.40 4899.13 276.63 5.67 MWD_ IFR _MS 137 12471.55 85.32 266.03 32.37 8999.02 4922.49 562.99 -4898.59 4930.83 276.56 1.92 MWD ^ IFR _MS 138 12503.04 84.43 265.92 31.49 9001.83 4952.93 560.78 -4929.88 4961.67 276.49 2.85 MWD IFR MS 139 12534.50 84.36 266.21 31.46 9004.91 4983.34 558.64 -4961.11 4992.47 276.42 0.94 MWD ~ IFR _MS 140 12584.88 84.25 266.74 50.38 9009.90 5032.10 555.55 -5011.15 5041.85 276.33 1.07 MWD IFR MS 141 12605 06 84 01 37 267 20 18 9011 97 5051 67 554 52 -5031 20 5061 66 276 29 3 33 MWD IFR MS • . . . . . . . . . . . _ _ Proj ection to Total De pth: 142 12660.00 84.01 267.37 54.94 9017.70 5105.01 552.01 -5085.78 5115.65 276.19 0.00 Proj ection to TD I(c)2005 IDEAL ID9 1C 01.4] • • Schlumberger Drilling & Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Dispatched To: Helen Warman Well No Z-04A Date Dispatched: 30-Jul-OS InstallationlRig Nabors 7ES Dispatched By: Nate Rose LWD Log Delivery V L I, 10-02-03 Data No Of Prints No of Flo ies Surveys 2 1 ~, ,3 ;f r ~h , 'l Received By: ~~ Please sign and return to: [Gt Drilline & Measurements LWD Division 2525 Gambell Street, Suite 400 Anchorage, Alaska 99501 nrose 1 @slb.com Fax: 907-561-8317 ••z~4- 230 1 Subject: Re: Z-04A Permit revision From: Winton Aubert <wnton aubert@admin.state.ak.us> Date: Thu, ~ 4 J ul 2005 09:26: ~ 0 -0800 To: "Wesley, Dave E" <WesleyDE@6P.com> Dave, Per 20 AAC 25.035 (h) (1}, AOGCC hereby approves alternate BOPS during drilling of well Z-04A (PTD 204-230). All other permit stipulations apply. Winton Aubert AOGCC 793-1231 Wesley, Dave E wrote: Winton, Included is the revised Permit to Drill application, with additional verbiage detailing the planned BOPE configuration while running the 7" drilling liner. Thanks and regards, «Z-04A Permit to Drill Rev1.ZIP» Dave Dave Wesley, Jr. GPB Operations Drilling Engineer 564-5153 office 440-8631 cell 1~ • FRANK H. MURKOWSKI, GOVERNOR Bill Isaacson Sr. Drilling Engineer BP Exploration (Alaska), Inc. PO Box 196612 Anchorage, AK 99519 Re: PBU Z-04A BP Exploration (Alaska), Inc. Permit No: 204-230 Surface Location: 975' SNL, 3561' WEL, Sec. 19, T11N, R12E, UM Bottomhole Location: 391' SNL, 3707' WEL, Sec. 24, T11N, R1 lE, UM Dear Mr. Isaacson: Enclosed is the approved application for permit to redrill the above development well. This permit to redrill does not exempt you from obtaining additional permits or approvals 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. Please provide at least twenty-four (24) hours notice for a representative of the Commission to witness any required test. Contact the Commission's petroleum field inspector at (907) 65 ~7 (pager). BY ORDER OF TAE COMMISSION DATED this ay of November, 2004 cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. 1nt~,~ ttll t`Lt~(}~ ~ STATE OF ALASKA ALASKA C~!AND GAS CONSERVATION COSION.<- - PERMIT TO DRILL 2O Aac 25_~os ~ ~i~~~~. 1a. Type of work ^ Drill ®Redrill ^ Re-Entry 1b. Current Well Class ^ Exploratory ®Development Oil ^ Multiple Zone ^ Stratigraphic Test ^ Service 'E->IJev8lopment Gas ^,Single Zonem 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 2S100302630-277 11. Well Name and Number: / PBU Z-04A 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 12752 TVp 9016 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay 4a. Location of Well (Governmental Section): Surface: 975' SNL 3561' WEL SEC T11N R12E 19 UM 7. Property Designation: ADL 028245 Pool , , . , , , Top of Productive Horizon: 734' SNL, 950' WEL, SEC. 24, T11N, R11E, UM 8. Land Use Permit: 13. Approximate Spu a Novemb r 14 004 ~ Total Depth: 391' SNL, 3707' WEL, SEC. 24, T11N, R11E, UM 9. Acres in Property: 2560 14. Distance to Near roperty: 1550' 4b. Location of Well (State Base Plane Coordinates): Surface: x- 599116 Y- 5959100 Zone- ASP4 10. KB Elevation Planned (Height above GL): 86' feet 15. Distance to Nearest Well within Pool Z-09 is 537' away at 12547' MD 16. Deviated Wells: Kickoff Depth: 6886 feet Maximum Hole Angle: 95 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 3700 Surface: 2820 1 Casing Program: Size Specifications Setting Depth To Bottom uantity of Cement c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta data 8-1/2" 7" 26# L-80 IBT-M 2318' 6736' 6478' 9054' 8608' 88 cu ft Class'G' 6-1/8" 4-1/2" 12.6# 13Cr80 VAM To 3462' 8904' 8550' 12752' 9016' 533 cu ft Class'G' 19. PRESENT WELL COND1TlON SUMMARY (To be completed for Redrill AND Re-entry Operations) Total Depth MD (ft): 9867 Total Depth TVD (ft): 9261 Plugs (measured): 9720 Effective Depth MD (ft): 9720 Effective Depth TVD (ft): 9135 Junk (measured): None Casing Length Size Cement Volume MD TVD true r I n r 110' 20" 110' 110' rf 2696' 13-3/8" 3723 cu ft Permafrost 2696' 2696' I t r i t 9164' 9-5/8" 1863 cu ft Class 'G' 9164' 8659' Pr i n 'n r 940' 5-1/2" 42 cu ft Class 'G' 892T - 9867 ~ 8456' - 9261' Perforation Depth MD (ft): 9450' - 9616' Perforation Depth TVD (ft): 8904' - 9046' 20. Attachments ®Filing Fee, $100 ^ BOP Sketch ^ Property Plat ^ Diverter Sketch ®Drilling Program ^ Time vs Depth Plot ^ Shallow Hazard Analysis ^ 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 to the best of my knowledge. Contact Ken Allen, 564-4366 Printed Name B' I Isaacson Title Senior Drilling Engineer Prepared ey Name/Number: Si nature ~....---_...__ Phone 564-5521 Date I f ~a 0~{ Terrie Hubble, 564-4628 Commission Use Only Permit To Drill Number. ,tea ~~ j API Number: 50- 029-21990-01-00 Permit Approv Date: ~ See cover letter for other requirements Conditions of Approval: Samples Required ^ Yes ,~No Mud Log Requi d ^ Yes I~'No Hyd Sulfide Measures Yes ^ No Directional Survey Required ~f Yes ^ No Other: ~f' S ~ ~ 0 ~ ~SCrI~'} r~ S l' , APPROVED BY A roved B ~ THE COMMISSION Date Form 10-401 heaf~ed 8G/2604 ~~ '`-~" E ~ j `'' ` ~' ~ ~ '- SuiSmit Ir~(DuplfCate i Planned Well Summary Well Z-04A Well Sidetrack / Target Zone ,_ Type horizontal Objective AFE Number: PBD 4P2296 API Number: 50-029-21990-01 Surface Northin Eastin Offsets TRS Location 5,959,100.09 599,115.97 975' FNL / 3561' FEL 11 N, 12 E, 19 Target Northin Eastin Offsets TRS Location 5,959,310 596,771 734' FNL / 950' FEL 11 N, 11 E, 24 Target Northin Eastin Offsets TRS Location 5,959,832 596,181 205' FNL / 1533' FEL 11 N, 11 E, 24 Bottom Northin Eastin Offsets TRS Location 5,959,619 594,010 391' FNL / 3707' FEL 11 N, 11 E, 24 Planned KOP: 6,886' and ~ Planned Spud: 11/14/04 Rig: Nabors 7ES Planned TD: 12,752' and Planned TVD: 9,016' BFE~57.5~ RTE: 86' Directional Program roved Well tan: WP04 Exit oint: 6,886' and / 6,534' sstvd Maximum Hole Inclination: -28° at 4,700' in the original well bore, --95° at --9,823' in the planned 6- 118° roduction horizontal. Proximity Issues: There are no close approach issues in drilling Z-04A. All surrounding wells ass ma'or risk criteria. Surve Pro ram: Standard MWD+IIFR+MS Nearest Well: Well Z-09, with center-to-center distance of -537' at 12,547' md. Nearest Pro a Line 1,550' to the nearest PBU roe line. Logains~ Program Hole Section: Required Sensors /Service 8-1/2" Intermediate: Real time MWD Dir/GR/RES/PWD/DDS throughout the interval. Two sample catchers will be re uired at com an man call out. 6-1/8° production: Real time MWD Dir/GR/RES/DEN/NEU throughout the interval. Two sample catchers will be re uired at com an man call out. Cased Hole: None tanned O en Hole: None tanned Z-04A Sidetrack Version 1.0 Page 1 Mud Program U Hole Section ! o ration: Set Whi stock /mill window in 9-5/8" T e Densi PV Funnel Vis YP Chlorides API FL H LSND 10.2 10-15 65-90 35-40 <1,500 4-6 9.0-9.5 Hole Section / o ration: Drillin 8-1/2" intermediate interval T e Densi PV Funnel Vis YP Chlorides API FL H LSND 0. 10-15 50-80 22-28 <1,500 4-5 9.0-9.5 Hole Section / o eration: Drillin 6-1/8" roduction interval T e Densi PV Funnel Vis YP LSRV API FL H FloPro SF 8.4 - 8.6 7 -12 45 - 60 22 - 30 > 30,000 4 - 8 9.0 - 9.5 Casins~ / Tubin4 Program Hole Size Casing/Tubing Size Wt. Grad Connect~n Length Top and / tvd Bottom and / tvd 8-1/2" 7" 26# L-80 IBT-M 2,318' 6,736'/ 6,478' 9,054'/ 8,608' 6-1/8" 4-1/2" 12.6# 13Cr-80 VAM To 3,462' 8,904'/ 8,550' 12,752'/ 9,016' Tubin 4-1/2" 12.6# 13Cr-80 VAM To 8,904' Surface 8,904'! 8,550' Cementing Proclram Casin Strin 7", 26#, L-80, IBT-M drillin liner Lead slurry: None planned Slurry Design Basis: Tail slurry: 2168' of fully cemented 7" X"8-1/2" annulus with 40% excess, plus " " ' 80 of 7 , 26# shoe track, plus 150 of 7 x 9-5/8 Inver {ap, plus 200 of 9-5/8 x 4" drill i e annulus. Pre-Flush None tanned Fl id S /V l Saver 40bbls MudPUSH II at 11 u s equence o ume: Lead Stu None tanned Tail Slur 87bbls / 488 cf 4 ' sx Class 'G', 15.8 ; 1. cf/sk. Casin Strin 4-1/2", 12.6#, L-80, VAM To solid roduction liner Lead slurry: none planned Slurry Design Basis: Tail slurry: 3,698' of 4-1/2" X 6-1/8" annulus with 40% excess, plus 80' of 4- " " " " " ' ' 1/2 , 12.6# shoe track, plus 150 of 7 X 4-1/2 liner lap, plus 200 of 7 X 4 drill i e annulus. Pre-Flush 15bbls CW 100 Fl id S /V l Saver 30bbls MudPUSH at 9.6 u s equence o ume: Lead Slu None tanned ~ Tail Slu 95bb1 / 533 cf 34 sx Class 'G', 15.8 w/Silica ,.1. cf/sk. w_.. Z-04A Sidetrack Version 1.0 Page 2 • Casing /Formation Integrity Testing Test Test Point Test Type Test pressure 9-5/8" casin to surface Bride lu to surface 30 min recorded 3,500 si surface Intermediate casin window 20' be and middle of window FIT 11.2 EMW 9-5/8" casin / 7" liner Float a ui ment to surface 30 min recorded 3,500 si surface Intermediate liner shoe 20' new formation be and shoe FIT 9.8 EMW Well Control Well control equipment consisting of S,000psi working pressure pipe rams (2), blind/shear rams, and an annular preventer will be installed and is capable of handling maximum potential surface pressures. BOPE and drilling fluid system schematics are currently on file with the AOGCC. Well Interval: 8-1/2" Intermediate liner section Maximum antici ated BHP: 3,627 si at 8,598' sstvd. Maximum surface ressure: 2,767 sl (based upon BHP and a full column of gas from TD @ 0.10 psi/ft) Calculated kick tolerance: Infinite with 10.7 p EMW FIT (FIT to 11.2 EMW Planned BOPE test ressure: 250 si low / 3,500psi hi h Planned BOPE test pressure: 250psi low / 3,500psi high - 7 day test cycle until a window is milled in 9-5/8" casing. Once a window is milled a 14 day test cycle can commence. Variable Bore Rams will remain instaNed, rather than C/O to 7" pipe rams. The rig will follow the current, best practice of picking up a joint of drill pipe, crossed over to casing thread, in the event of a kick. This confi uration rovides two sets of em to able rams, rather than one. B~PE configuration, during the running of the 7" drilling liner, appended 7/1412005 to follow current approved practice. Well Interval: 6-1/8" roduction liner section Maximum antici ated BHP: 3,700 si at 8,800' sstvd. Maximum surface ressure: 2,820 SI (based upon BHP and a full column of gas from TD @ 0.10 psi/ft) Calculated kick tolerance: Infinite with 8.8 p EMW FIT FIT to 9.8 EMW Planned BOPE test ressure: 250 si low / 3,500 si high Planned com letion fluid: 8.4p g seawater / 7.0 g Diesel Planned BOPE test ressure: 250 si low / 3,500 si hi h -14 da test c cle Disposal Annular Injection: No annular injection in this well. Cuttings Handling: Cuttings generated from drilling operations are to be hauled to the Grind and Inject station at DS-04. An metal cuttin s should be sent to the North Slo a Borou h. Fluid Handling: All drilling and completion fluids and other Class II wastes are to be hauled to DS-04 j for in ection. All Class I wastes are to be hauled to Pad 3 for dis osal. /t~ ~~~~ ~ ~ ~ E ~h~ r 1~L~~ d 7 ~!¢~2005 . ~~ h~11~-( ~ ~ Z-04A Sidetrack Version 1.0 1~. ~.~~ ~ ~ l ~ ¢1 ~o s e 7~/¢~~p~ Page 3 Geologic Prognosis Formatiion Planned MD ft TVDss ft Comments TKUP 6878 -6527 KOP 6886 -6535 LCU 6931 -6577 TMLV 7028 -6669 TKNG 7690 -7303 TJG 7784 -7393 TJF 8065 -7662 TJE 8309 -7896 TJD 8536 -8113 TJC 8804 -8370 TJB 8883 -8445 TSGR 9043 -8598 as TSHU 9061 -8615 TEIL 9182 -8725 TSAD 9228 -8762 as 45N heel 9266 -8790 as/oil 44N heel 9311 -8820 oil 43N heel 9353 -8845 oil 42N heel 9405 -8870 oil 41N heel 9534 -8905 oil/water TD 12752 -8930 water TD Criteria TD Criteria: I Logged OWC or polygon hardline. Do not drill past the end of the target geologic oolvaon. It is a hardline. Fault Prognosis Fault Formation MD Intersect TVDss Estimated Direction of Uncertainty Encountered Intersect Throw Throw Fault 01 Zone 42P 9,800' 8,905' 20' - 50' D to N +/- 2~0' NOTE: Fault 01 has not been crossed before. Loss circulation risk while crossing fault is !ow-medium due to orientation of fault. Z-04, drilled in 1989, did not encounter any lost circulation zones. Z-09, drilled in 1989, did not encounter any lost circulation zones. Z-06, drilled in 1988, had total losses of 2600 bbls. 1500 of this was in the Kuparuk, and 900 bbls was at 9743 MD, in the Ivishak. Z-05, drilled in 1990, had total losses of 500 bb/s, all in the Ivishak. Based on the regional losses history, and the crossing of fault 01, the team p/aced a medium overall risk of losses on this well (40%-60%). Z-04A Sidetrack Version 1.0 Page 4 Operations Summary Pre-Risr Operations: 1. Bleed OA, IA and tubing pressures to zero. Test the IC (9-5/8") pack-off to 3000 psi, test the tubing pack-off to 5000 psi. Function all LDS, repair or replace as necessary. ~ Done 7/25/04. PPPOT-T passed to 5000 psi, PPPOT-lC passed to 3000 psi. 2. MIT the OA to 2000 psi. ®Done 07126104 Passed to 3000 psi. 3. RU Slick-line. Pull PXX plug set in top X nipple @ 8832' {SLM was 8803' 9/24/04}. Tag PBTD and perform SBHPS. 4. RU Coil Tubing. Cement P & A Z-04 with coil tubing from the PBTD of 9720' to 8700'. 5. CMIT IA and tubing to 3500 psi for 30 minutes (this should be done post coil cement plug). 6. RU Slick-line. Drift tubing and tag TOC at 8700' with gauge ring /junk basket. 7. RU E-line. Perform tubing punch 8~ string shot to assist chemical cut success. RIH and chemical cut the 3-1/2" tubing in the middle ajoint - 7150' (about 600' above GLM 3). 8. Circulate the well to 8.6 ppg brine. Freeze protect the IA and tubing with diesel to _ 2200'. 9. Bleed all pressures to zero. Set BPV. Secure well. 10. Remove the wellhouse. If necessary, level the pad. Rio Oaerations: 1. MIRU Nabors 7ES 2. Pull BPV. Circulate out freeze protection and displace well to Sea Water. 3. Monitor OA, IA and T for pressure. Verify well is dead. 4. Set TWC. Nipple down tree. Nipple up and test BOPE. Pull TWC. 5. Pull 3-1/2" tubing from pre-rig cut at - 7,150'. 6. RU a-line. Run GR/JB for 9-5/8", 47# casing to top of tubing stub. 7. MU 9-5/8", 47# EZSV bridge plug on a-line with CCL. RIH and set just above the top of the tubing stub 6,906'. RD a-line. Note: The final setting depth for the EZSV (whipstock bottom) will be optimized from the CCL logs to avoid cutting a collar. Close blinds and test 9-5/8" casing to 3500 psi for 30 minutes while recordin on chart. T~5 tt? - ~p ( ~~~ y~Z Va.( , 8. PU milling / whipstock assembly. RIH picking up DP to top EZSV. Orient and set the whipstock. ~-~ Change well over to 10.2 ppg milling fluid. Note: If MWD signals are too weak to obtain toolfaces, swap over to 10.2 ppg milling fluid before setting the whipstock. 9. Mill a window in the 9-5/8" casing at 16,886' MD plus 20' from mid window. Perform FIT to 11.2 ppg. POOH for Drilling BHA. Verify that the mud weight is at least 10.2 ppg prior to cutting the window. 10. MU the 8-1/2" drilling assembly with DIR/GR/RES/PWD and RIH. Kick off and drill 8-1/2" intermediate ~~ interval as per directional plan. 11. Drill ahead to casing point at Top Sag River to an estimated depth of 9,054' MD. ~ 12. Run and cement a 7" drilling liner throughout the 8-1/2" hole and back into the 9-5/8" casing 150' to /- 6,736' MD. Set hanger /liner top packer and displace cement with mud. POOH. 13. MU 6-1/8" BHA with DIR/GR/RES/NEU/DEN and RIH to the landing collar. 14. Pressure test wellbore to 3500 psi for 30 minutes. 15. Drill shoe track. Swap over to 8.5 ppg mud and drill 20' of new formation. Perform FIT to 9.8 ppg. 16. Drill the 6-1/8" production interval as per directional plan (building to horizontal and drilling 3,697 MD of production hole) to and estimated TD of 12,752'. 17. Run and cement a 4-1/2", 12.6#, 13Cr-80 Vam TOP finer throughout the 6-1/8" weNbore and 150' back into the 7" drilling liner to 8,904' MD. Set liner top packer and displace well to clean seawater above the liner top. 18. RIH with DPC pert guns, Perf intervals to be determined from LWD logs. Plan to perforate overbalance. POOH, LD DP and pert guns. 19. Run 4-1/2", 12.6#, 13Cr-80 Vam TOP completion, tying into the 4-1/2" liner tep. 20. Set packer, test and record the tubing to 3500 psi and annulus to 3500 psi for 30 minutes each. 21. Set and test TWC to 1000 psi. 22. ND BOPE. NU and test the tree to 5000 psi. Pull TWC. Z-04A Sidetrack Version 1.0 Page 5 23. Freeze protect the welt to -2200'. Set BPV and secure the well. 24. RDMO. Post-Ria Work: 1. Install wellhouse and flowlines. 2. MIRU slickline. Pull the ball and rod / RHC plug from `XN' nipple below the new production packer. 3. Install gas lift valves. Job 1: Move In / Rill Up /Test BOPE Reference RP • "Drilling/Workover Close Proximity Surface and Subsurface Wells" SOP. • "Hydrogen Sulfide"SOP. • "ADW Rig Move" RP. Issues and Potential Hazards - BOP test interval during this phase is 7 days. - No wells will require shut-in for the rig move onto Z-04. However, Z-05 is about 35' to the West and Z-03 is about 35' to the East. These are the two closest surface neighboring wells. Care should be taken while moving onto the well. Spotters should be employed at all times. - The Z-04 well bore will be secured with the following barriers: • Note on barriers during MIRU procedures: ^ Tubing -Tested cement plug and a BPV. ^ IA -Tested cement plug and the annular valve. ^ OA -Kill weight fluid, tested Annulus and annular valve. • Note on barriers during ND Tree / NU BOP Procedures ^ Tubing -Tested cement plug and a TWC. • IA -Tested cement plug and the annular valve. • OA -Kill weight fluid, tested Annulus and annular valve - Prior to pulling the tree, verify there is a static column of seawater to surface and that no pressure exists. Z-Pad is not designated as an HZS site. Standard Operating Procedures for H2S precautions should be fo{lowed at all times. Recent H2S data from the pad is as follows: Well Name H S Readin Date #1 Closest SHL with H2S Readin Z-03 10 8/15/2000 #2 Closest SHL with H2S Readin Z-05 10 8/14/2000 #1 Closest BHL with H2S Readin Z-06 NA #2 Closest BHL with H2S Readin Z-09 NA Max Recorded H2S Readin on the Pad Z-35 20 8/17!2000 Z ad H S levels are icall 10-20 m. - Post Permit to Drill and Summary of Drilling Hazards in the dog house and camp prior to spud. Z-04A Sidetrack Version 1.0 Page 6 Job 2: De-comalete Well Reference RP • "De-completions" RP Issues and Potential Hazards - BOP test interval during this phase is 7 days. - Monitor the well to ensure the fluid column remains static prior to pulling the completion. - Note and record required PU weight to pull tubing at cut point (-7,150'). - Have all wellhead and completion equipment NORM-tested, following retrieval. - The existing wellhead is a "FMC/BP Current" design completed in 1989. Is has 9-5/8" intermediate casing set on a mandrel hanger and packoff. The current completion is a 12" x 3-1l2" TDS hanger with "H" profile back pressure valve groove. Have a spear on location as a contingency to pull the Hanger to the floor. - There is a 3-1/2" OTIS BVLN and flow coupling at 2079' with 2 encapsulated control lines run to surface. The current tubing tally states there are 33 rubber protectors and 4 steel bands securing the control lines. Job 3: Run Whip Stock Reference RP • "Whipstock Sidetrack" RP. • "Leak-off and Formation Integrity Tests" SOP Issues and Potential Hazards - BOP test interval during this phase is 7 days until the window is milled into formation. Once the window is milled the 14 day test cycle starts and continues until the rig moves off the well. - A 9-5/8 whip stock will be run and set in the existing 9-5/8" casing. - According to the volumes pumped, there should be cement behind the 9 5!8" casing at the sidetrack point. - There should NOT be the possibility of a centralizers or turbo clamps on the 9-5l8" casing at window milling depth. The 9-5/8" casing running notes state centralizers were run on the bottom 10 joints and 23 turbo clams spaced out between joints 166 - 232. - The window will be cut in the existing 9-5/8 casing into the Kuparuk formation. Ensure entire wellbore has been circulated to 10.2ppg mud before milling commences. - Kuparuk formation pressure could be 10ppg. • Z-101 RFT 9.97ppg (Jan 2001) • Z-39 MDT 9.57ppg (Mar 2002) - Once milling is complete, circulate a minimum of 1-1/2 bottoms up and pump a "Super Sweep" pill to remove meta{ debris created from the milling process. Ditch magnets should be used throughout job. Z-04A Sidetrack Version 1.0 Page 7 i ~ - Once the milling BHA is out of the hole the entire stack and flow lines should be flushed to remove metal debris that may have settled out in these areas. Ensure BOP equipment is operable. Job 5: Drill 8-1/2" Intermedaite Hole Interval Reference RP • "Leak-off and Formation Integrity Tests" SOP • "Prudhoe Bay Directional Guidelines" RP • "Lubricants for Torque and Drag Management" RP • "Shale Drilling, Kingak and HRT' RP. Issues and Potential Hazards - This well bore will exit the original well in the Kuparuk sands (-6,886' MD), and drill to the top of the Sag River formation (-9,054' MD). For this well, the Kingak will require a mud weight of 10.2 ppg, according to the Kingak Polar plot. Maintain mud weight at 10.2ppg from the window to 7" liner point. Follow all shale drilling practices to minimize potential problems. - KICK TOLERANCE: In the worst-case scenario of 8.2 ppg pore pressure at the Sag River depth, a fracture gradient of 10.7 ppg at the 9 5/8" casing window, and 10.2 ppg mud in the hole, the kick tolerance is infinite. - This wellbore does not have any known or planned fault crossings in the intermediate interval. Job 6: Run and Cement 7" Intermediate Liner Reference RP • "Shale Drilling, Kingak and HRZ" RP. • "Intermediate Casing and Cementing Guidelines" RP • "Running and Cementing a Drilling Liner" RP • Schlumberger Cement Program. Issues and Potential Hazards - Swab and surge pressure should be minimized with controlled liner running speeds and by breaking circulation slowly. Excessive swab /surge pressures could initiate Kingak instability problems. - Ensure the liner top packer is set prior to POOH. Slack off with rotation to the maximum allowable down weight, as per Baker representative. Job 7: Drill 6-1/8" Production Hole Interval Reference RP • "Leak-off and Formation Integrity Tests" SOP Z-04A Sidetrack Version 1.0 Page 8 • "Prudhoe Bay Directional Guidelines" RP • "Lubricants for Torque and Drag Management' RP Issues and Potential Hazards - The parent Z-04 wellbore does not have a history of losses. The Z-04A production section crosses one possible fault at -9800' MD. There is a medium probability (40%-60%) of having associated losses or hole stability problems. The directional plan was designed to cross this fault as perpendicular as possible. - Differential sticking is a concern. The 8.4 - 8.6 ppg mud will be -0.5 ppg over balanced to the Sag River and Ivishak formations. Minimize the time the pipe is left stationary while in open hole (making connections, surveying, etc). - Tie the MWD Gamma Ray log back into parent well bore log in the wellsite geologist possession. A 200' MAD pass above the window is usually sufficient. Job 9: Run 4-1/2" Production Liner Reference RP • "Modified Conventional Liner Cementing" RP • Schlumberger Cement Program. Issues and Potential Hazards - The completion design is to run a 4-1/2", 12.6#, 13Cr-80 VAM Top solid liner throughout the production interval. - Differential sticking is possible. The 8.4 - 8.6 ppg Flo-Pro wil{ be -0.5 ppg over balanced to the Sag River and Ivishak formations. Minimize the time the pipe is left stationary while running the liner. - Ensure the liner top packer is set prior to POOH. Slack off with rotation to the maximum allowable down weight, as per Baker representative. - Sufficient 4-1/2" liner wilt be run to extend --150' back up into the 7" liner. Phase 10: DPC Perforate Reference RP • "Drill Pipe Conveyed Perforating" RP Issues and Potential Hazards - The well will be DPC perforated overbalanced, after running and cementing the 4-1/2 liner. Ensure all personnel are well briefed on Schlumberger's perforating procedures and that all responsibilities are understood. Only essential personnel should be present on the rig floor while making up DPC guns. - Expect to lose fluid to the formation after perforating. Have ample seawater on location and be prepared with LCM if necessary. Z-04A Sidetrack Version 1.0 Page Job 12: Run 4-'/z" 13Cr-80 Comaletion Reference RP • "Completion Design and Running" RP • "Handling and Running 13 Chrome" RP • "Casing and Tubing connections" RP Issues and Potential Hazards - Diesel will be used to freeze protect the well to 2200'. The diesel flash point is 100° F. Diesel vapor pressure is - 0.1 psia at 100° F. - The completion, as designed, will be to run a 4-1/2", 12.6#, 13Cr-80, VAM Top production tubing string, stinging into the 4-1/2" production liner tieback sleeve. Take all the normal precautions while running the Vam Top 13Cr-80 tubing: clean threads if contaminated, use a stabbing guide, single joint compensator, properly dope and hand-start each pin. Use Jet Lube Seal Guard thread compound and torque turn each connection. Tubing should arrive on location with the proper thread dope. Confirm type of thread compound prior to RIH. Job 13: ND/NU/Release Rig Reference RP • "ADW Rig Move" RP. • "Freeze Protecting an Inner Annulus" RP. Issues and Potential Hazards - No wells will require shut-in for the rig move off Z-04A. However, Z-05 is about 35' to the West and Z-03 is about 35' to the East. These are the two closest surface neighboring wells. Care should be taken while moving off the well. Spotters should be employed at all times. - Note on Barriers during the ND BOP / NU Tree procedures: ^ Tubing -Kill weight fluid and a TWC. ^ IA -Kill weight fluid and annular valve. ^ OA -Kill weight fluid, tested Annulus and annular valve. - Note on Barriers during the RDMO procedures: ^ Tubing -Kill weight fluid and a BPV. ^ IA-Kill weight fluid and annular valve. ^ OA -Kill weight fluid, tested Annulus and annular valve. Z-04A Sidetrack Version 1.0 Page 10 TREE = MCEV OY WELLHEAD = FMC ACTUATOR = BAKER KB. ELEV - 94.17 BF. ELEV.- _ 57.47. KOP_ _.... 3700.. Max Angle = 31 @ 9200' Datum MD = 9439' Datum TVD = 8800' SS 132 BBLS returned - to surface during Cement job 12/14/89 Z-04 Current SA TES: METAL BANDS BEHIND LATCH IN GLM EE DHTV VIDEO 10/22/94 13-3/8" CSG, 68#, L-80, ID = 12.415" I-I 2696' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 5 2996 2902 1 MERLA RA 4 6223 5904 24 MERLA RA 3 7747 7319 30 MERLA RA 2 8413 7914 30 MERLA RA 1 8804 8256 59 MERLA RA C 2079' 3-1l2" OTIS SSSV LAND NIP, ID = 2.75" Minimum ID = 2.750" @ 2079' 3-1l2" OTIS SSSV NIPPLE _ Calculated TOC Values Gauge Hole = - 3320` 50% excess = ~ 5268' 100% excess = _ 6242` ${ 832' I-~ 3-1 /2" OT{S X NIP, ID = 2.750" 8~ 8~ 3-1/2" TNV SBR SEAL ASSY 8856' 9-5/8" x 3-1/2" TNV HBBP-R PKR, ID = 4.0" TOP OF 5-112" LNR ~ 8930' 3-1/2" TBG, 9.2#, L-80, .0087 bpf, ID = 2.992" 8933' 9-5l8" CSG, 47#, NT-80S, fD = 8.681" -9164' PERFORATION SUMMARY REF LOG: BHCA - 12/27/89 CBTON 12/31/89 ANGLE AT TOP PERF: 31 @ 9450' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-1/8" 4 9450 - 9490 O 10/03/91 3-3/8" 6 9496- 9524 O 01!01/90 3-3/8" 6 9532 - 9558 O 01/01/90 2-1/8" 4 9600 - 9616 O 03/17/91 SLB Cement Log dated 12/31/89 shows cement to the LNR top. PBTD 9791' 5-1/2" LNR, 17#, NT-80S, .0232 bpf, ID = 4.892" 986T 8899' 3-1 /2" OTIS X NIP, ID = 2.750" 8920' 3-1/2" OTIS X NIP, ID = 2.750" 8933' 3-1/2" WLEG 8933' ELMD TT LOGGED 08/10/92 8959' BTM OF PKR CMT SOZ (03/31/95) (w /7 BBLS cMT sQZ'D INTO w) - 9458` -Tag w/wireline 12/04/99 9720` -New PBTD after cement sqz /mill 4/5!95 DATE REV BY COMMENTS DATE REV BY COMMENTS 01/03/90 JO ORIGINAL COMPLETION 08/12/04 KWA Add all CMT depths 03/13/01 SIS-QAA CONVERTEDTOCANVAS 03/14/01 SIS-MD FINAL 06/16/01 RN/TP CORRECTIONS 06/07/02 BLC/tlh PKR SOZ CORRECTION PRUDHOE BAY UNrr WELL: Z-04 PERMfr No: 1891230 API No: 50-029-21990-00 SEC 19, T11N, R12E, 975' FNL & 1392' FWL BP Exploration (Alaska) TREE= MC:FVOY WELLHEAD = FMC ACTUATOR= BAKER KB. ELEV = 94.1 T BF. ELEV - 57.47 KOP _ 3700' Max Angle = 31 @ 9200' Datum MD = 9439' Datum TV D = 8800' SS 132 BBLS returned - to surface during Cement job 12/14/89 13-3/8" CSG, 68#, L-80, ID = 12.415" ~--I 2696' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 5 2996 2902 1 MERLA RA 4 6223 5904 24 MERLA RA 3 7747 7319 30 MERLA RA 2 8413 7914 30 MERLA RA 1 8804 8256 59 MERLA RA TOP OFS-1/2"LNR ~ 8930' 3-112" TBG, 9.2#, L-80, .0087 bpf, ID = 2.992" 8933' 9-5/8" CSG, 47#, NT-80S, ID = 8.681" {--I 9164' PERFORATION SUMMARY REF LOG: BHCA - 12!27/89 CBT ON 12(31/89 ANGLE AT TOP PERF: 31 @ 9450' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-1i8" 4 9450 - 9490 O 10/03/91 3-3/8" 6 9496 - 9524 O 01/01/90 3-3/8" 6 9532 - 9558 O 01/01/90 2-1/8" 4 9600 - 9616 O 03/17/91 SLB Cement Log dated _ 12/31/89 shows cement to the 5-1/2" LNR top. PBTD 9791' 5-1/2" LNR, 17#, NT-80S, .0232 bpf, ID = 4.892" 9867' Z -O ~ ~ GLM SEE DHTV VIDEO 0 22/94 HIND LATCH IN Pre-Rig 2079' -~ 3-1/2" OTIS SSSV LAND NIP, ID = 2.75" Minimum ID = 2.750" @ 2079' 3-1/2" OTIS SSSV NIPPLE Calculated TOC Values Gauge Hole = - 3320` 50% washout = -- 5268' 100°!o washout = _ 6242` ~ ~ ~ -7150` -Chemical Cut Tubing -8700` - TOC 8832' 3-1/2" OTIS X NIP, 1D = 2.750" 1 8841 8856' 8899' 8920' 8933' 8933' 8959' -13-1/2" TNV SBR SEAL ASSY I 9-5/8" x 3-1/2" TNV HBBP-R PKR, ID = 4.0" 3-1/2" OTIS X NIP, ID = 2.750" 3-1/2" OTIS X NIP, ID = 2.750" 3-112" WLEG ] ELMD TT LOGGED 08/10/92 BTM OF PKR CMT SOZ (03131/95) (w 17 68LS CMT SOZ'D INTO IA) - 9458` -Tag w/wireline 12/04/99 Squeeze ~10 BBLS into Perforations 9720` -New PBTD after cement mill 4/5/95 DATE REV BY COMMENTS DATE REV BY COMMENTS 01/03/90 JO ORIGINAL COMPLETION 08/12/04 KWA Pre-rig & add all CMT depths 03/13/01 SIS-QAA CONVERTEDTOCANVAS 03/14/01 SIS-MD FINAL 06/16/01 RN/TP CORRECTIONS 06/07/02 BLGtIh PKR SOZ CORRECTION PRUDHOE BAY UNrr WELL: Z-04 PERMfr No: 1891230 API No: 50-029-21990-00 SEC 19, T11N, R12E, 975' FNL & 1392' FWL BP Exploration (Alaska) TREE _ WELLHEAD = ACTUATOR = KB. ELEV = BF. ELEV = KOP= Max Angle = Datum MD = Datum TV D = ST 5 4 3 2 1 8832' 8841' ~ Z-04A Proposed Completion 132 BBLS returned to surface during Cement job 12/14/89 13-3/8" CSG, 68#, L-80, ID = 12.415" ~ 2696' Calculated TOC Values Gauge Hole = - 3320` 50°lo washout = _ 5268' 100% washout = - 6242` GAS LIFT MANDRELS MD TVD DEV TYPE VLV LATCH PORT DATE I 8856' I 8899' II III Top of Whipstock - ~ 6,886` Chemical Cut Tubing - - 7150` --- TOC - - 8700` 3-112" OTIS X NIP, ID = 2.750" 13-1/2" T"^./ SBR SE°.L ASSY ~- " x 3-1 /2" TNV HBBP-R PKR, ID = 4.0" ] 3-1 /2" OTIS X NIP, ID = 2.750" TOP OF 5-112" LNR -r 8g30` i~ SLB Cement Log dated 12/31/89 shows cement to the 5-1/2" LNR top. 5-1/2" LNR, 17#, NT-80S, .0232 bpf, ID = 4.892" ~--I 9867' 4-1/2" Solid LNR, 12.6#, 13Cr- 12,751` Possible Cement above PKR from 1995 PKR sgeeze job (worst case 8$02` Top)? 8920` 3-1/2" OTIS X NIP, ID = 2.750" 8933` 3-1/2" WLEG 8933` ELMD TT LOGGED 08/10/92 8959` BTM OF PKR CMT SOZ (03/31/95) (w /7 BBLS CMT SQZ'D INTO IA) 9720` -New PBTD after cement mill 4/5/95 DATE REV BY COMMENTS DATE REV BY COMMENTS 01/03/90 JO ORIGINAL COMPLETION 08/26/04 KWA Pre-rig & add all CMT depths 03/13/01 SIS-QAA CONVERTEDTOCANVAS 03/14/01 SIS-MD FINAL 06/16/01 RN/TP CORRECTIONS 06/07/02 BLGtIh PKR SOZ CORRECTION PRUDHOE BAY UNfr WELL Z-04A PERMfT' No: API No: 50-029-21990-01 SEC 19, T11 N, R12E, 975' FNL & 1392' FWL BP F~cploration (Alaska) 9-5/8" CSG, 47#, NT-805, ID = 8.681" l~ 9164' 4-1/2" HES X Nipple, ID = 3.813" - 2,200` 4-1/2" 12.6#, 13Cr TBG, ID = 3.958` r,~ Top of 7" LNR - -- 6,736` 4-1/2" HES X Nipple, ID = 3.813" 7" x 4-1/2" S-3 Packer 4-1/2" HES X Nipple, ID = 3.813" 4-1 /2" HES XN Nipple, ID = 3.725" 4-1/2"WLEG 4-1/2" LNR Hanger/ZXP - - 8,904' 7" 26#, L-80 LNR - - 9054` PBTD _ 12,651 ` \~\ Squeeze -10 BBLS into Perforations _-- -- COMPANY DETAnS REFERENCE MFORMATION SURVEY PRIXiRAM Plan: Z-OaA wp04 (Z-0//Plan Z-04A) "aw BP Amoco I II Caordmme (N/EI R~ Wdl CenOe: Z-0o, Ttue NoM Vemu11TVD10.efemtce: 5].5. 28.586.Ip Dryth Fm Deptli To Sutvey/Platl Tool Clumd B Tro laluboslc Y: Y Y DUe: 9/9/1004 s p CakaWioo Metlnt Mn®®Mfove Enu Sywe~ ISCWSA Sun Method: Tnv Cyleider North Sanion lVSl ReknTm: SIo1~0/(O.OON.O,p1El Meaw~ed DDeepp66 Rcfvace. 5].5-28.5 86.00 C l i k M tl d Mi 6886.W 12]51.51 Plsoed:Z-0U wpf11 V16 MWD Chethed: Date: Etmr Sly Ellgifiul*Caaing a u at °n e n : nmavn Cwvatue Reviewed: Dale: Wwvt Method: RWn Ba d CASMG DETAILS WELL DETAILS Nme -NI-S -PJ.W NaA~ Fssang Latitude L°ngia~ SIm No. TVD MD Name Size zoo 1899J1 -zlss3o svwlao.ao 599116J1 ]o°n•sL]z]N 14~°II•so.auw w 1 8684.00 9043.40 7" 7.000 2 9015.95 12751.00 4 I/2" 4.500 TARGET DETAILS Name TVD +N/-S +E/-W Northing Easting Shape Z-04A Tl revl 8694.00 -101.52 -1909.24 5958973.32 597208.75 Point Z-04A T4 8881.00 725.95 -3626.37 5959777.99 595481.00 Point Z-04A T3 8923.00 770.71 -2925.66 5959831.99 596181.00 Point 60 ~ Z-04A T2 revl 8991.00 241.25 -2342.00 5959310.32 596771.54 Point Z-04A TS rev 9016.00 586.34 -5099.47 5959618.99 594010.00 Point e Qa 3 9 a 8 ' u 781 2 F- 1200 1_ ~ -. t i 1 t i I 2400 II Vertical Section at 276.56° [600fl/in] SECTION DETAILS Sec MD Inc Azi TVD +N/-S +E/-W DLeg TFace VSec Target 1 6886.00 19.66 274.59 6620.54 -80.47 -1277.22 0.00 0.00 1259.66 2 6906.00 20.52 268.06 6639.32 -80.32 -1284.08 12.00 -72.00 1266.50 3 6997.76 16.85 268.06 6726.23 -81.32 -1313.46 4.00 -179.97 1295.57 4 9053.85 16.85 268.06 8694.00 -101.52 -1909.24 0.00 0.00 1885.14 Z-04A Tl revl 5 9583.54 90.80 315.42 8993.36 121.43 -2224.00 15.00 48.44 2223.31 6 9741.51 90.80 315.42 8991.16 233.93 -2334.86 0.00 0.00 2346.30 7 9751.73 91.00 316.00 8991.00 241.25 -2342.00 6.00 70.88 2354.23 Z-04A T2 revl 8 9823.16 95.03 317.46 8987.24 293.18 -2390.88 6.00 19.86 2408.72 9 10246.95 95.03 317.46 8950.08 604.23 -2676.31 0.00 0.00 2727.81 IO 10550.88 95.00 290.00 8923.00 770.71 -2925.66 9.00 -88.84 2994.55 Z-04A T3 Il 10918.42 93.76 256.64 8894.12 792.19 -3286.33 9.00 -90.78 3355.31 12 11073.47 93.76 256.84 8883.96 756.98 -3436.98 0.00 0.00 3500.95 13 11265.63 88.00 264.54 8881.00 725.95 -3626.37 5.00 126.71 3685.56 Z-04A T4 14 11331.35 84.71 264.59 8885.17 719.73 -3691.65 5.00 179.15 3749.71 IS 12751.51 84.71 264.59 9016.00 586.34 -5099.47 0.00 0.00 5133.07 Z-04A TS rev • ~ ~ -i i - ~~ ~ - - ~ FORMATION TOP DETAILS _ ~ I i F No. TVDPath MDPath Formation i I ~ t ~}- ~ 1 6663.15 6931.36 LCU _ ~ t 2 6755.49 7028.33 TMLV ~ i ~ ~ 3 7388.81 7690.08 TKNG ~ 4 7479.15 7784.47 TJG I ~ - 5 7748.13 8065.52 TJF ~ ~ , ~ ~ -I 6 7981.99 8309.88 TJE - ~ -- r-.! 7 8198.78 8536.40 T1D 2 _ ~ ~ -I 8 8455.72 8804.87 TJC ' ~ 9 8531.00 8883.53 T1B ' ~ 1 10 8684.00 9043.40 TSGR 73.4 MD, 88®3.9 't 6 TVD ~ ~ ~ ~ -- t ~ t ~ I -} --,i 11 8701.00 9061.17 TSHU 331. 5 .~tD, 88AS. IT TVD ~ - - -- ~ -- I - 12 8811.00 9182.88 TELL - ~ ~ - - ~ ~ - 13 8848.00 9228.71 TSAD : - -~ -l ~ 14 8876.00 9266.40 45N (heel) - - T T ~ ~ - 15 8906.00 931 1.15 44N (heel) - ~ - 4 16 8931.00 9353.89 43N (heel) ! ~ I7 8956.00 9405.54 42N (heel) ~ ! T ~! 18 8991.00 9534.71 41N (heel) 4800 ~~, G 1.tiy4= l '~ COMPANY DEfA1L5 BP Atrom ku4dan Metli9d: Minmamt CYnvaave Etnr Sysem: ISCWSA Scan Methad Tnv CyliMa North Fm>r Surf Ellipi®I - G®ng Wani Method Rules BUd RFFERI:NCE INFORMATION Coaduute IN F 1 Refaerce: Wdl Cave: Z-04, Tme Hank Vcrtial ITVI)I Refarnce: 57.5 - 28.5 86.00 Section lV5l Refenmce: Sld-0410.OONO.OIIE1 Meawmllkph RKaerce: 57.5 - 28.5 Bb.fq Calculation Mnlrod Mmmwn Curvemc SECTION DETAILS Sec MD Inc Azi TVD +N/-S +&-W DLeg TFace VSec Target I 6866.00 19.66 274.59 6620.54 -80.47 -1277.22 0.00 0.00 1259.66 2 6906.00 20.52 268.06 6639.32 -80.32 -1284.08 12.00 -72.00 1266.50 3 6997.76 16.85 268.06 6726.23 -81.32 -1313.46 4.00 -179.97 1295.57 4 9053.85 16.85 268.06 8694.00 -101.52 -1909.24 0.00 0.00 1885.14 Z-04A TI reel 5 9583.54 90.80 315.42 8993.36 121.43 -2224.00 15.00 48.44 2223.31 6 9741.51 90.80 315.42 8991.16 233.93 -2334.86 0.00 0.00 2346.30 7 9751.73 91.00 316.00 8991.00 24L25 -2342.00 6.00 70.88 2354.23 Z-04A T27evl 8 9823.16 95.03 317.46 8987.24 293.18 -2390.88 6.00 19.86 2408.72 9 10246.95 93.03 317.46 8950.08 604.23 -2676.31 0.00 0.00 2727.81 10 10550.88 95.00 290.00 8923.00 770.71 -2925.66 9.00 -88.84 2994.55 Z-04A T3 II 10918.42 93.76 256.84 8894.12 792.19 -3286.33 9.00 -90.78 3355.31 12 11073.47 93.76 256.84 8883.96 756.98 -3436.98 0.00 0.00 3500.95 13 11265.63 88.00 264.54 8881.00 725.95 -3626.37 5.00 126.71 3685.56 Z-04A T4 14 11331.35 84.71 264.59 8885.17 719.73 -3691.65 5.00 179.15 3749.71 IS 12751.51 84.71 264.59 9016.00 586.34 -5099.47 0.00 0.00 5133.07 Z-04A TS rev I ~I 1~ ~ ~~ - I~~ I I ~~ i ~ ~ ~ 1 1 ~~II ~ i i( I I ~~ I ~ I~ i ~ ~ ~ ~ 21 C rR I ~ f I ~i.'4 SURVEY PROGR.IM Plan: Z-04A wp04 (Z-04/Plan Z-04A) Dept Fm Oeph To 9nrylPW Tool Cleated By: Troy Jakalroaky DeI<: 9/9/2004 6886.00 12]81.81 Flamed Z-04A ap01 VI6 MWU Checked: Data: WELL D£TAfIS None •W-S -Fj-W Nathmg Fiume Lntdade ImgiNde Slot Z-01 189932 -2163.JU 59591W.00 59911631 ]0°I]'S I.]27N 169°1 I'S0.025W (M TARGET DETAILS Name TVD +N/-S +E/-W Northing Easting Shape Z-04A Tlrevl 8694.00 -101.52 -1909.24 5958973.32 597208.75 Point Z-04A Geo Poly 8694.00 15.62 -1639.39 5959094.00 597477.00 Polygon Z-04A T4 8881.00 725.95 -3626.37 5959777.99 595481.00 Point Z-04A T3 8923.00 770.71 -2925.66 5959831.99 596181.00 Point Z-04A Faultl 8986.00 232.95 -5074.13 5959265.99 594040.00 Polygon Z-04A Faultl 8986.00 -536.54 -5123.28 5958495.99 594001.00 Polygon Z-04A Fault3 8986.00 656.23 -5317.59 5959685.99 593791.00 Polygon Z-04A Fault4 8986.00 -140(.87 -5033.68 5957631.99 594102.01 Polygon Z-04A Faults 8986.00 413.92 -4083.57 5959459.99 595028.00 Polygon Z-04A T2 revl 8991.00 241.25 -2342.00 5959310.32 596771.54 Point Z-04A TS rev 9016.00 586.34 -5099.47 5959618.99 594010.00 Point CASING DETAILS ~, ', ~ No. TVD MD Name Siu l ' i~ I ~ ~ l i l i I 8684.00 9043.40 7" 7.000 i ~ ~ 2 9015.95 12751.00 4 I/2" 4.500 . l i i ~~ - ~ ~ I ~ ~ '~ ~ ~'~ FORMATION TOP DETAILS t ~- - -- - - - j _ - - I ~ ~ ! i ~ No. TVDPath MDPath Formation -- -- I i ~ i - ---±-- -- + i i t - - -- i ~ I 6663.15 6931.36 LCU I , i - , i ~ ~ I 2 6755.49 7028.33 TMLV ~ _ 3 7388.61 7690.08 TKNG ' '~, j ! I ~ ! I ! ~' 4 7479.15 7784.47 T1G , ~ 5 7748.13 8065.52 T1F ~ : i 6 7981.99 8309.88 TJE D - ' ~ ~ I '~~ ~ ~ i ' ~ (~ ! 7 8198.78 8536.40 TJD ' r f ~ 8 8455.72 88114.87 T1C i%: I I I i 1 ~ 9 8531.00 8883.53 T1B IT MD, 8883.96'TV ~ - IO 8684.00 9043.40 TSGR 0918 42' MD 8894 ' TVD ~' ~ I I I I - i ~ I 11 8701.00 9061.17 TSHU . , . I 12 8811.00 9182.88 TEIL 13 8848.00 9228.71 TS.4D I I ~ I4 8876.00 9266.40 45N (heel) Start Dv 100' :10246 95' MD 895 08'TVq i I S 8906.00 931 L I S 44N (heel) , . ,, i i i i, 16 8931.00 9353.89 43N (heel) End ' r :9823.16' MD, 8987.24' TVD 17 8956.00 9405.54 42N (heel) ~' ' ' ' ' 18 8991.00 9534.71 41N (heel) i ~ S Dit 6/100 : 9141.51 M End Dir : 95 , 8991.16 TVD . .54' Mp, 8993.36' TVD TI--~ -I .. .-. -1 , - . .----.~.,-_ -- - .-. -2800 -2100 West(-yEast(+) [7Wft/in] -700 0 700 sP ~ BP Planning Report Company: BP Amoco Date: 9/9F2004 Time; 09:52:19 Page: 1 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Z-04, True North Site: P8 Z Pad Verticah(TVD} Reference: 57.5 + 28.5 86.0 %'Well: Z-04 Section (VS} Reference: Well (O.OON,O.OOE,276.56Azi) Welipath: Plan Z-04A Survey Caknlatiorr Metbod: Minimum Curvature Db: OraGe Plan: Z-04A wp04 Date Composed: 7/2/2004 Version: 16 Principal: Yes Tied-to: From: Definitive Path 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 Level Geomagnetic Model: bggm2004 Site: PB Z Pad TR-11-12 UNITED STATES :North Slope Site Position: 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-04 Slot Name: 04 Z-04 Well Position: +N/-S 1899.32 ft Northing: 5959100.00 ft Latitude: 70 17 51.727 N +E/-W -2163.30 ft Easting : 599116.31 ft Longitude: 149 11 50.425 W Position Uncertainty: 0.00 ft Casing Points MD TVD Diameter Hole Size Name ft ft in in 9043.40 8684.00 7.000 8.500 7" 12751,00 9015.95 4.500 6.125 41/2" Formations MD ft TVp ft Formations [3thology Dip Angle deg Dip Direction deg 0.00 THRZ 0.00 0.00 0.00 BHRZ 0.00 0.00 0.00 TKUP 0.00 0.00 6931.36 6663.15 LCU 0.00 0.00 7028.33 8755.49 TMLV 0.00 0.00 7690.08 7388.81 TKNG 0.00 0.00 7784.47 7479.15 TJG 0.00 0.00 8065.52 7748.13 TJF 0.00 0,00 8309.88 7981.99 TJE 0.00 0,00 8536.40 8198.78 TJD 0.00 0.00 8804.87 8455.72 TJC 0.00 0.00 8883.53 8531.00 TJB 0.00 0.00 9043.40 8684.00 TSGR 0.00 0.00 9061.17 8701.00 TSHU 0.00 0.00 9182.88 8811.00 TEIL 0.00 0,00 9228.71 8848.00 TSAD 0.00 0,00 9266.40 8876.00 45N (heel) 0.00 0.00 9311.15 8906.00 44N (heel) 0.00 0.00 9353.89 8931.00 43N (heel) 0.00 0.00 9405.54 8956.00 42N (heel) 0.00 0.00 9534.71 8991.00 41 N (heel) 0.00 0.00 Targets Map Map <-- Latitude -> <_ Longitude -> Name Description TVD +N/-S +E/_Vy Northing Easting Deg Min Sec Deg Min Sec Dip. Dir. ft ft ft ft ft Z-04A T1 rev1 8694.00 -101.52 -1909.24 5958973.32 597208.75 70 17 50.727 N 149 12 46.078 W Z-04A Geo Poly 8694.00 15.62 -1639.39 5959094.00 597477.00 70 17 51.879 N 149 12 38.213 W -Polygon 1 8694.00 15.62 -1639.39 5959094.00 597477.00 70 17 51.879 N 149 12 38.213 W -Polygon 2 8694.00 36.75 -2028.18 5959110.00 597088.00 70 17 52.086 N 149 12 49.546 W • BP • BP Planning Report Company: BP Amoco Date: 9!9!2004 Time: 09:52:19 Page: 2 ';Field: Prudhoe Bay Co-ordinah(NE) Reference: W ell: Z-04, True North Site: PB Z Pad Vertical (TVD) Reference: 57.5 + 28.5 86.0 Well: Z-04 Section (VS) Reference: W ell (O.OON,O.OOE,276.56Azi) Wellpath: Plan Z-04A Snrvey Calculation Method: Minimum Curvature Db: OraCa Targets Map Map <- Latitude -> <- Longitude --~ Name Description TVD +N/-S +E/-W Northing Easting Deg Min Sec Deg Min Sec DIp., Dir. ft ft ft ft ft -Polygon 3 8694.00 920.21 -2809.67 5959983.00 596295.00 70 18 0.772 N 149 13 12.336 W -Polygon 4 8694.00 753.77 -3840.04 5959803.00 595267.00 70 17 59.131 N 149 13 42.372 W -Polygon 5 8694.00 621.04 -5303.05 5959651.00 593806.00 70 17 57.817 N 149 14 25.020 W -Polygon 6 8694.00 386.95 -5223.12 5959418.00 593889.00 70 17 55.515 N 149 14 22.686 W -Polygon 7 8694.00 515.55 -4054.22 5959562.00 595056.00 70 17 56.787 N 149 13 48.613 W -Polygon 8 8694.00 643.41 -2980.35 5959704.00 596128.00 70 17 58.050 N 149 13 17.309 W -Polygon 9 8694.00 578.72 -2777.16 5959642.00 596332.00 70 17 57.414 N 149 13 11.385 W -Polygou-10 8694.00 -169.73 -2221.94 5958901.00 596897.00 70 17 50.055 N 149 12 55.192 W -Polygon 11 8694.00 -206.76 -1613.32 5958872.00 597506.00 70 17 49.692 N 149 12 37.451 W Z-04A T4 8881.00 725.95 -3626.37 5959777.99 595481.00 70 17 58.858 N 149 13 36.143 W Z-04A T3 8923.00 770.71 -2925.66 5959831.99 596181.00 70 17 59.302 N 149 13 15.716 W Z-04A Fault 1 8986.00 232.95 -5074.13 5959265.99 594040.00 70 17 54.002 N 149 14 18.339 W -Polygon 1 8988.00 232.95 -5074.13 5959265.99 594040.00 70 17 54.002 N 149 14 18.339 W -Polygon 2 8986.00 225.77 -4530.13 5959265.99 594584.00 70 17 53.934 N 149 14 2.481 W -Polygon 3 5986.00 137.50 -3752.15 5959187.99 595363.00 70 17 53.070 N 149 13 39.801 W -Polygon 4 8986.00 390.22 -1680.46 5959467.99 597431.00 70 17 55.563 N 149 12 39.412 W -Polygon 5 8986.00 281.93 84.43 5959382.99 599197.00 70 17 54.500 N 149 11 47.964 W -Polygon 6 8986.00 390.22 -1680.46 5959467.99 597431.00 70 17 55.563 N 149 12 39.412 W -Polygon 7 8986.00 137.50 -3752.15 5959187.99 595363.00 70 17 53.070 N 149 13 39.801 W -Polygon 8 8986.00 225.77 -4530.13 5959265.99 594584.00 70 17 53.934 N 149 14 2.481 W Z-04A Fault 2 8986.00 -536.54 5123.28 5958495.99 594001.00 70 17 46.433 N 149 14 19.757 W -Poygon 1 8986.00 -536.54 -5123.28 5958495.99 594001.00 70 17 46.433 N 149 14 19.757 W -Polygon 2 8986.00 -702.08 -3795.23 5958347.99 595331.00 70 17 44.813 N 149 13 41.045 W -Polygon 3 8986.00 -1230.77 -868.69 5957857.99 598264.00 70 17 39.622 N 149 12 15.743 W -Polygon 4 8986.00 -702.08 -3795.23 5958347.99 595331.00 70 17 44.813 N 149 13 41.045 W Z-04A Fault 3 8986.00 656.23 -5317.59 5959685.99 593791.00 70 17 58.163 N 149 14 25.445 W -Polygon 1 8986.00 656.23 -5317.59 5959685.99 593791.00 70 17 58.163 N 149 14 25.445 W -Polygon 2 8986.00 852.99 -4310.82 5959895.99 594795.00 70 18 0.104 N 149 13 56.098 W -Polygon 3 8986.00 1229.38 -2742.58 5960292.99 596358.00 70 18 3.813 N 149 13 10.383 W -Polygon 4 8986.00 852.99 -4310.82 5959895.99 594795.00 70 18 0.104 N 149 13 56.098 W Z-04A Fautt 4 8986.00 -1401.87 -5033.68 5957631.99 594102.01 70 17 37.923 N 149 14 17.128 W -Polygon 1 8986.00 -1401.87 -5033.68 5957631.99 594102.01 70 17 37.923 N 149 14 17.1~:i W -Polygon 2 8986.00 297.40 -5259.31 5959327.99 593854.01 70 17 54.634 N 149 14 23.738 W -Polygon 3 8986.00 998.74 -5958.18 5960019.99 593146.01 70 18 1.527 N 149 14 44.127 W -Polygon 4 8986.00 297.40 -5259.31 5959327.99 593854.01 70 17 54.634 N 149 14 23.738 W Z-04A Fault 5 8986.00 413.92 -4083.57 5959459.99 595028.00 70 17 55.787 N 149 13 49.466 W -Polygon 1 8986.00 413.92 -4083.57 5959459.99 595028.00 70 17 55.787 N 149 13 49.466 W -Polygon 2 8986.00 577.63 -2922.20 5959638.99 596187.00 70 17 57.403 N 149 13 15.613 W Z-04A T2 rev1 8991.00 241.25 -2342.00 5959310.32 596771.54 70 17 54.096 N 149 12 58.696 W Z-04A T5 rev 9016.00 586.34 -5099.47 5959618.99 594010.00 70 17 57.477 N 149 14 19.085 W Plan Section Information MD Inc! Azlm TVD' +N/-S +E/-W DI,S Build Turn TFO Target ft deg deg ft ft ft deg/100ft deg/100ft deg/100ft deg 6886.00 19.66 274.59 6620.54 -80.47 -1277.22 0.00 0.00 0.00 0.00 6906.00 20.52 268.06 6639.32 -80.32 -1284.08 12.00 4. 32 -32.61 -72.00 6997.76 16.85 268.06 6726.23 -81.32 -1313.46 4.00 -4. 00 -0.01 -179.97 9053.85 16.85 268.06 8694.00 -101.52 -1909.24 0.00 0.00 0.00 0.00 Z-04A T1 rev! 9583.54 90.80 315.42 8993.36 121.43 -2224.00 15.00 13. 96 8.94 48.44 9741.51 90.80 315.42 8991.16 233.93 -2334.86 0.00 0.00 0.00 0.00 9751.73 91.00 316.00 8991.00 241.25 -2342.00 6.00 1. 96 5.67 70.88 Z-04A T2 rev! 9823.16 95.03 317.46 8987.24 293.18 -2390.88 6.00 5.64 2.04 19.86 i BP • BP Planning Report Company: BP Amoco Date: 9/9/2004 Time: 09:52:19 Page: 3 Field: Prudhoe Bay Co-ordinate(N E) Reference: Well: Z-04, True NoAh Site: P B Z Pad Vertical (TVD) Reference: 57.5 + 28.5 86.0 Well: Z-04 Section (VS) Reference: Well (O.OON,O.OOE,276.56Azi) Weilpath: Plan Z-04A Survey Calculation Method: Minimum Curvature Db: Oracle Plan Section Information MD Incl Azim TVD +N/-S +E/-W DLS Buitd Turn TFO Target ft deg deg ft ft ft cieg/100ft deg/100ft deg/100ft deg 10246.95 95.03 317.46 8950.08 604.23 -2676.31 0.00 0.00 0.00 0.00 10550.88 95.00 290.00 8923.00 770.71 -2925.66 9.00 -0,01 -9.04 -88.84 Z-04A T3 10918.42 93.76 256.84 8894.12 792.19 -3286.33 9.00 -0.34 -9.02 -90.78 11073.47 93.76 256.84 8883.96 756.98 -3436.98 0.00 0.00 0.00 0.00 11265.63 88.00 264.54 8881.00 725.95 -3626.37 5.00 -3.00 4.00 126.71 Z-04A T4 11331.35 84.71 264.59 8885.17 719.73 -3691.65 5.00 -5.00 0.07 179.15 12751.51 84.71 264.59 9016.00 586.34 -5099.47 0.00 0,00 0.00 0.00 Z-04A T5 rev Survey MD Iucl Aam TVD Sys TVD N/S E/W DLS MapN MapE TooUCommeat ft deg deg ft ft R ft deg/100ft ft ft 6886.00 19.66 274.59 6620.54 6534.54 -80.47 -1277.22 0.00 5959002.70 597840.38 Start Dir 12/10 6900.00 20.24 269.96 6633.70 6547.70 -80.29 -1281.99 12.00 5959002.82 597835.61 M W D 6906.00 20.52 268.06 6639.32 6553.32 -80.32 -1284.08 12.00 5959002.76 597833.52 Start Dir 4/100 6931.36 19.51 268.06 6663.15 6577.15 -80.62 -1292.75 4.00 5959002.35 597824.85 LCU 6997.76 16.85 268.06 6726.23 6640.23 -81.32 -1313.46 4.00 5959001.37 597804.16 End Dir :6997 7000.00 16.85 268.06 6728.37 6642.37 -81.34 -1314.11 0.00 5959001.34 597803.51 M W D 7028.33 16.85 268.06 6755.49 6669.49 -81.62 -1322.32 0.00 5959000.96 597795.30 TMLV 7100.00 16.85 268.06 6824.08 6738.08 -82.32 -1343.08 0.00 5958999.98 597774.55 M W D 7200.00 16.85 268.06 6919.78 6833.78 -83.31 -1372.06 0.00 5958998.61 597745.59 MWD 7300.00 16.85 268.06 7015.49 6929.49 -84.29 -1401.04 0.00 5958997.25 597716.63 M W D 7400.00 16.85 268.06 7111.19 7025.19 -85.27 -1430.01 0.00 5958995.89 597687.67 M W D 7500.00 16.85 268.06 7206.90 7120.90 -86.25 -1458.99 0.00 5958994.52 597658.71 MWD 7600.00 16.85 268.06 7302.60 7216.60 -87.24 -1487.97 0.00 5958993.16 597629.76 M W D 7690.08 16.85 268.06 7388.81 7302.81 -88.12 -1514.07 0.00 5958991.93 597603.67 TKNG 7700.00 16.85 268.06 7398.31 7312.31 -88.22 -1516.94 0.00 5958991.79 597600.80 M W D 7784.47 16.85 268.06 7479.75 7393.15 -89.05 -1541.42 0.00 5958990.64 597576.34 TJG 7800.00 16.85 268.06 7494.01 7408.01 -89.20 -1545.92 0.00 5958990.43 597571.84 M W D 7900.00 16.85 268.06 7589.72 7503.72 -90.18 -1574.89 0.00 5958989.06 597542.88 M W D 8000.00 16.85 268.06 7685.42 7599.42 -91.17 -1603.87 0.00 5958987.70 597513.92 M W D 8065.52 16.85 268.06 7748.13 7662.13 -91.81 -1622.86 0.00 5958986.80 597494.95 TJF 8100.00 16.85 268.06 7781.12 7695.12 -92.15 -1632.85 0.00 5958986.33 597484.96 M W D 8200.00 16.85 268.06 7876.83 7790.83 -93.13 -1661.82 0.00 5958984.97 597456.01 M W D 8300.00 16.85 268.06 7972.53 7886.53 -94.12 -1690.80 0.00 5958983.60 597427.05 M W D 8309.88 16.85 268.06 7981.99 7895.99 -94.21 -1693.66 0.00 5958983.47 597424.19 TJE 8400.00 16.85 268.06 8068.24 7982.24 -95.10 -1719.78 0.00 5958982.24 597398.09 MWD 8500.00 16.85 268.06 8163.94 8077.94 -96.08 -1748.75 0.00 5958980.87 597369.13 M W D 8536.40 16.85 268.06 8198.78 8112.78 -96.44 -1759.30 0.00 5958980.38 597358.59 TJD 8600.00 16.85 268.06 8259.65 8173.65 -97.06 -1777.73 0.00 5958979.51 597340.17 M W D 8700.00 16.85 268.06 8355.35 8269.35 -98.05 -1806.71 0.00 5958978.14 597311.21 M W D 8800.00 16.85 268.06 8451.06 8365.06 -99.03 -1835.68 0.00 5958976.78 597282.25 M W D 8804.87 16.85 268.06 8455.72 8369.72 -99.08 -1837.09 0.00 5958976.71 597280.84 TJC 8883.53 16.85 268.06 8531.00 8445.00 -99.85 -1859.89 0.00 5958975.64 597258.07 TJB 8900.00 16.85 268.06 8546.76 8460.76 -100.01 -1864.66 0.00 5958975.41 597253.30 MWD 9000.00 16.85 268.06 8642.47 8556.47 -100.99 -1893.64 0.00 5958974.05 597224.34 MWD 9043.40 16.85 268.06 8684.00 8598.00 -101.42 -1906.21 0.00 5958973.4F• 597211.77 T' 9053.85 16.85 268.06 8694.00 8608.00 -101.52 -1909.24 0.00 5958973.32 597208.75 Z-04A T1 rev1 9061.17 17.60 270.78 8701.00 8615.00 -101.54 -1911.41 15.00 5958973.27 597206.58 TSHU 9100.00 22.05 281.96 8737.53 8651.53 -99.95 -1924.42 15.00 5958974.69 597193.55 M W D 9182.88 32.94 295.19 8811.00 8725.00 -87.09 -1960.17 15.00 5958987.08 597157.64 TEIL 9200.00 35.31 296.96 8825.18 8739.18 -82.86 -1968.79 15.00 5958991.19 597148.96 M W D 9228.71 39.33 299.51 8848.00 8762.00 -74.62 -1984.11 15.00 5958999.23 597133.53 TSAD 9266.40 44.68 302.26 8876.00 8790.00 -61.65 -2005.73 15.00 5959011.91 597111.74 45N (heel) 9300.00 49.49 304.30 8898.88 8812.88 -48.14 -2026.29 15.00 5959025.15 597091.01 M W D ~ sP ~ BP Planning Report Company: BP Amoco Date: 9/9/2004 Time: 09:52:19 Page: 4 Field: Prudhoe Bay Co-ordinate(N E) Reference: Well: Z-04, True North Site: PB Z Pad Vertical (TVD ) Reference: 57.5 + 28.5 86.0 Weil: Z-04 Section (VS) Reference: WeII (O.OON, O.OOE,276.56Azt) Wellpath: Plan Z-04A Survey Calculation Method: Minimum Curvature Db: OraGe survey MD lacl Azim TVD Sys TVD N!S E/W DLS MapN MapE TooUComment ft .deg deg R ft ft ft deg/t00ft ft ft 9311.15 51.10 304.91 8906.00 8820.00 -43.27 -2033.35 15.00 5959029.92 597083.89 44N (heel) 9353.89 57.27 307.03 8931.00 8845.00 -22.90 -2061.37 15.00 5959049.92 597055.61 43N (heel) 9400.00 63.97 309.01 8953.61 8867.61 1.85 -2092.98 15.00 5959074.25 597023.67 MWD 9405.54 64.78 309.23 8956.00 8870.00 5.00 -2096.86 15.00 5959077.35 597019.76 42N (heel) 9500.00 78.57 312.67 8985.64 8899.64 63.70 -2164.34 15.00 5959135.15 596951.51 M W D 9534.71 83.65 313.83 8991.00 8905.00 87.19 -2189.30 15.00 5959158.30 596926.24 41 N (heel) 9583.54 90.80 315.42 8993.36 8907.36 121.43 -2224.00 15.00 5959192.08 596891.10 End Dir :9583 9600.00 90.80 315.42 8993.13 8907.13 133.15 -2235.55 0.00 5959203.65 596879.40 MWD 9700.00 90.80 315.42 8991.74 8905.74 204.37 -2305.73 0.00 5959273.93 596808.29 M W D 9741.51 90.80 315.42 8991.16 8905.16 233.93 -2334.86 0.00 5959303.10 596778.77 Start Dir 6/100 9751.73 91.00 316.00 8991.00 8905.00 241.25 -2342.00 6.00 5959310.32 596771.54 Z-04A T2 revl 9800.00 93.72 316.99 8989.01 8903.01 276.23 -2375.20 6.00 5959344.85 596737.88 MWD 9823.16 95.03 317.46 8987.24 8901.24 293.18 -2390.88 6.00 5958361.59 596721.98 End Dir :9823 9900.00 95.03 317.46 8980.51 8894.51 349.57 -2442.63 0.00 5959417.30 596669.49 MWD 10000.00 95.03 317.46 8971.74 8885.74 422.97 -2509.98 0.00 5959489.80 596601.19 M W D 10100.00 95.03 317.46 8962.97 8876.97 496.37 -2577.33 0.00 5959562.29 596532.88 M W D 10200.00 95.03 317.46 8954.20 8868.20 569.77 -2644.68 0.00 5959634.79 596464.58 M W D 10246.95 95.03 317.46 8950.08 8864.08 604.23 -2676.31 0.00 5959668.83 596432.51 Start Dir 9/1 UO 10300.00 95.11 312.67 8945.39 8859.39 641.62 -2713.62 9.00 5959705.7' 596394.71 M W D 10400.00 95.16 303.63 8936.42 8850.42 703.08 -2791.86 9.00 5959766.14 596315.67 M W D 10500.00 95.09 294.60 8927.47 8841.47 751.49 -2878.78 9.00 5959813.39 596228.12 M W D 10550.88 95.00 290.00 8923.00 8837.00 770.71 -2925.66 9.00 5959831.99 596181.00 Z-04A T3 10600.00 94.92 285.56 8918.75 8832.75 785.66 -2972.25 9.00 5959846.32 596134.22 M W D 10700.00 94.68 276.53 8910.36 8824.36 804.73 -3069.95 9.00 5959864.10 596036.29 M W D 10800.00 94.32 267.51 8902.49 8816.49 808.25 -3169.47 9.00 5959866.31 595936.73 MWD 10900.00 93.86 258.50 8895.35 8809.35 796.11 -3268.37 9.00 5959852.87 595838.01 M W D 10918.42 93.76 256.84 8894.12 8808.12 792.19 -3286.33 9.00 5959848.71 595820.11 End Dir :1091 11000.00 93.76 256.84 8888.77 8802.77 773.66 -3365.60 0.00 5959829.14 595741.10 M W D 11073.47 93.76 256.84 8883.96 8797.96 756.98 -3436.98 0.00 5959811.52 595669.95 Start Dir 5/100 11100.00 92.97 257.91 8882.40 8796.40 751.19 -3462.83 5.00 5959805.39 595644.18 M W D 11200.00 89.97 261.91 8879.84 8793.84 733.69 -3561.22 5.00 5959786.59 595546.04 MWD 11265.63 88.00 264.54 8881.00 8795.00 725.95 -3626.37 5.00 5959777.99 595481.00 Z-04A T4 11300.00 86.28 264.56 8882.71 8796.71 722.69 -3660.54 5.00 5959774.28 595446.88 MWD 11331.35 84.71 264.59 8885.17 8799.17 719.73 -3691.65 5.00 5959770.92 595415.81 End Dir :1133 11400.00 84.71 264.59 8891.50 8805.50 713.28 -3759.71 0.00 5959763.58 595347.86 MWD 11500.00 84.71 264.59 8900.71 8814.71 703.89 -3858.84 0.00 5959752.88 595248.87 M W D 11600.00 84.71 264.59 8909.92 8823.92 694.50 -3957.97 0.00 5959742.18 595149.88 MWD 11700.00 84.71 264.59 8919.13 8833.13 685.11 -4057.10 0.00 5959731.48 595050.89 M W D 11800.00 84.71 264.59 8928.35 8842.35 675.71 -4156.23 0.00 5959720.78 594951.90 MWD 11900.00 84.71 264.59 8937.56 8851.56 666.32 -4255.36 0.00 5959710.09 594852.91 M W D 12000.00 84.71 264.59 8946.77 8860.77 656.93 -4354.49 0.00 5959699.39 594753.92 MWD 12100.00 84.71 264.59 8955.98 8869.98 647.54 X453.62 0.00 5959688.69 594654.93 MWD 12200.00 84.71 264.59 8965.19 8879.19 638.14 -4552.75 0.00 5959677.99 594555.94 M W D 12300.00 84.71 264.59 8974.41 8888.41 628.75 -4651.89 0.00 5959667.29 594456.95 M W D 12400.00 84.71 264.59 8983.62 8897.62 619.36 -4751.02 0.00 5959656.60 594357.96 MWD 12500.00 84.71 264.59 8992.83 8906.83 609.97 -4850.15 0.00 5959645.90 594258.97 M W D 12600.00 84.71 264.59 9002.04 8916.04 600.58 -4949.28 0.00 5959635.20 594159.98 MWD 12700.00 84.71 264.59 9011.25 8925.25 591.18 -5048.41 0.00 5959624.50 594060.99 M W D 12751.00 84.71 264.59 9015.95 8929.95 586.39 -5098.97 0.00 5959619.05 594010.51 41/2" 12751.51 84.71 264.59 9016.00 8930.00 586.34 -5099.47 0.00 5959618.99 594010.00 Z-04A T5 rev wF7.L oEtA~ .4NTILOLLISION SETTINGS CT7MPANY DETAILS SURVEY PROGRAM Nmre +N/-S +FJ-W 1901 Nthhp Fsaung Weuh l.ongibde Sld BP Amoco DepN Fm Dep1A To Survty/%an Tool Interpolation Method:MD Interval: 25.00 zu/ IRw.IZ -z 16JJO svs9lao.nn SW 11611 7o°irsl n]N lav°I TSO123w /w Depth Range Fmm: bAg6.W To: 127SI.tl cilwtauon N4:moJ: Mm~m#m e~u,.ame 6R8600 Iz]s131 Plan ~: z+,aA ..ylw vl6 MwD Maximum Range: 1472.30 Reference: Plan: Z-fJ4A wp04 Em. sy:mm: ISCw SA Scm Melhad: Tnv CylirvJn NoM F Safece. Elliptical~Casiml Wmirc1 Me16.x1: Ruk. Bmal ;olo72r To MD P1°Z-0/A O Pmenl WNlpalh: Z-01 SOO Te on MD: 6986.00 1 OOO R'R' Rer ~: ns-2R.s ab.aaR - 1500 - ZOOO v ~~ pori1Ree t~tnp Aigle .N73 +aF/W Fmm TVD 2300 2]6.56° 0.00 0.00 28.50 - 3500 - 4500 - 5500 - 6500 LEGErro - 7SOO ~ Plan Iii Z-54p 1 %an Ivi Z-54p). NOFARORS PW Iii Z-SSp lPlan lvi Z-SSp).NDFARORS - HSOO Plan KuP 7. P9 (PW Kupl P9).NOERRORS Z IM Z-0d NOERRORS - 9SOO - l, I ~ Z-03IPWraI L-03.4PBI1, Mqv R'n4 -_.._ 1 OSOO ~ 7,-03IPIaM4 Z-03.41. Major Rill Z-03 IZ-05). Major Rink - i 1 SOO - - Zd16 (Plan#7 Z-06A). Major Ret - I2S00 --- Z-0917.-09), M.pr Rek 13500 iiePe izJKe e ~ P KLpr Risk ZJR IZ-181, IrLjd Ruk PW 2MA Z-0/A wpfN ~Q 0 2 ~Q Irc Ac TVD +WS +F/-W IXeq TFace VSa Telga (O 9.b6 27139 0.32 268.06 662031 6U9J2 -80.47 -8072 -127712 -1284.08 0.00 12.00 0.00 -72.00 1259.66 126630 68s 268.06 fi85 26&06 672623 8694.00 -8172 -10132 -1317.16 -190924 IAO 0.00 -179.9/ Q00 129537 1885.1/ Z-0/A TI mI l0 11 080 715.42 0.80 JI5.12 899376 8991.16 121.0 277.97 -2224.00 -2314.86 ISJp 0.00 18.M Q00 222131 274670 1.00 316.00 8 Y823.16 Y3.07 317.46 tl991.00 R96]24 24123 297.18 -2712.00 -2390.88 6A0 6.00 70.88 1986 235427 Z-0/A T2 rtvl 2408.72 - + ~~ ravelling '7 Cylinder Azimuth (TFO+AZI) [deg] vS Centre O! Centre Separation [200ft/in] 9 10246.95 95.01 317.46 10 10550.88 95.00 290.00 II 1091 B.R 97.76 25684 12 11077.1] 97.76 25681 Il 11165.63 88.W 26^31 1/ 1113133 81 71 26139 8950.08 8923.00 889^.12 8881.96 BBSI.OD 8885 17 60127 77071 79219 73698 725.95 719 7 -267631 -2925.66 -328677 -7176.98 -36267, 7 N 0.00 9.00 9A0 080 S.OD 0.00 -88.81 -90.78 0.00 12611 2727.81 2991.35 Z-0IA Tl 375571 3500.9s 368536 Z-04A TO a Y. x~.. . I S 1275131 84.71 26439 . 9016.00 . 3 58671 ( -. I.63 -5099.q 5.00 0.00 179.15 0.00 3749.71 5137.07 Z-0/.1 TS rev ~ BP Anticollision Report Company: BP Amoco Datee 9/9/2004 Time: 09:56:54 Page: I Field: Prudhoe Bay .Reference Site: PB Z Pad Co-ordinate(NE) Reference: WeIL Z-04, True North Reference Well: Z-04 Vertical (TVD) Reference: 57.5 + 28.5 86.0 Reference WelFpath: Plan Z-04A Db: Oracle GLOBAL SCAN APPLIED: All wellpaths within 2QU'+ 1(10!1000 0[ reference -There are Tl~ii@a~illssn this fllZldll: Z-04A wp04 & NOT PtANN£J PR Interpolation Method: MD Interval: 25.00 ft Error Model: ISGWSA Ellipse Depth Range: 6886.00 to 12751.51 ft Scan Method: Trav Cylinder North Maximum Radius: 1472.30 ft Error Surface: Ellipse + Casing Casing Points MD TVD Diameter Hole Size Name ft ft in in 9043.40 8684.00 7.000 8.500 7" 12751.00 9015.95 4.500 6.125 41/2" Plan: Z-04A wp04 Date Composed: 7/2/2004 Version: 16 Principal: Yes Tied-to: From: Definitive Path Summary < Offset Welipath ~ Reference Offset Ctr-Ctr Pto-Go ALbwable Site Well Wellpath MD MD Distance Area Deviation Wareing ft n ft ft ft PB Z Pad Plan Ivi Z-54p Plan Ivi Z-54p VO Plan 12127.28 12150.00 112.90 0.00 112.90 Pass: NOERRORS PB Z Pad Plan Ivi Z 55p Plan Ivi Z~5p VO P1an 9072.62 11650.00 1160.63 0.00 1160.63 Pass: NOERRORS PB Z Pad Plan Kup Z P9 Plan Kup Z P9 VO Plan: 6899.59 6934.16 822.66 0.00 822.66 Pass: NOERRORS PB Z Pad Z-04 Z-04 V1 6900.00 6900.00 0.17 No Reference Casings PB Z Pad Z-05 Plan#3 Z-05AP81 VO Pla 10733.09 9675.00 776.24 193.44 582.80 Pass: Major Risk PB Z Pad Z-05 Plan#4 Z-05A VO Plan: 10733.09 9675.00 776.24 193.44 582.80 Pass: Major Risk PB Z Pad Z-05 2-05 V3 10733.09 9675.00 776.24 193.42 582.82 Pass: Major Risk PB Z Pad Z-O6 Plan#7 Z-O6A V3 Plan: 6922.13 6975.00 938.75 90.35 848.40 Pass: Major f2isk PB Z Pad Z-06 Z-06 V1 6922.13 6975.00 938.75 90.24 848.51 Pass: Major fZsk PB Z Pad Z-09 Z-09 V1 12655.23 10725.00 548.47 305.78 242.69 Pass: Major Risk PB Z Pad Z-33 Z-33 V1 6900.19 7100.00 894.74 90.74 804.00 Pass: Major Risk PB Z Pad Z-38P61 Z-38PB1 V3 Out of range PB Z Pad Z-38 Z-38 V5 Out of range Site; PB Z Pad Well: Plan Ivi Z-54p Rule Assigned: NOERRORS Wellpath: Plan Ivi Z-54p VO Plan: Ivi Z-54p wp01 V1 Inter-Site Error: 0.00 ft Reference Offset Semi-Major Axls Ctr-Ctr No-Go Allowable MD TVD 11ID TVD Ref Offset TFOtAZI TFO-HS CasinglfiSi)istance Area Deviation Warning ft ft ft ft ft ft deg deg in ft ft ft 6890.14 6624.44 7075.00 7050.85 9.64 6.29 81.45 168.25 8.500 1284.53 0.00 1284.53 Pass 6900.60 6634.26 7100.00 7073.79 9.66 6.30 81.26 171.49 8.500 1282.98 0.00 1282.98 Pass 6999.51 6727.90 7125.00 7096.55 9.67 6.32 81.15 173.09 8.500 1280.80 0.00 1280.80 Pass 7024.23 6751.56 7150.00 7119.13 9.68 6.34 81.13 173.07 8.500 1277.09 0.00 1277.09 Pass 7048.88 6775.15 7175.00 7141.52 9.69 6.36 81.11 173.06 8.500 1272.96 0.00 1272.96 Pass 7073.46 6798.67 7200.00 7163.71 9.69 6.38 81.09 173.04 8.500 1268.39 0.00 1268.39 Pass 7097.95 6822.11 7225.00 7185.70 9.70 6.41 81.07 173.01 8.500 1263.40 0.00 1263.40 Pass 7122.35 6845.47 7250.00 7207.47 9.71 6.44 81.05 172.99 8.500 1257.99 0.00 1257.99 Pass 7146.65 6868.73 7275.00 7229.03 9.72 6.46 81.02 172.96 8.500 1252.16 0.00 1252.16 Pass 7170.85 6891.88 7300.00 7250.36 9.74 6.49 80.99 172.93 8.500 1245.90 0.00 1245.90 Pass 7194.93 6914.93 7325.00 7271.47 9.75 6.53 80.96 172.90 8.500 1239.23 0.00 1239.23 Pass 7218.89 6937.86 7350.00 7292.33 9.76 6.56 80.92 172.87 8.500 1232.14 0.00 1232.14 Pass 7242.73 6960.67 7375.00 7312.96 9.78 6.60 80.89 172.83 8.500 1224.64 0.00 1224.64 Pass 7266.42 6983.35 7400.00 7333.33 9.80 6.64 80.85 172.79 8.500 1216.72 0.00 1216.72 Pass 7289.98 7005.90 7425.00 7353.45 9.81 6.68 80.80 172.74 8.500 1208.40 0.00 1208.40 Pass 7313.39 7028.30 7450.00 7373.30 9.83 6.73 80.76 172.70 8.500 1199.67 0.00 1199.67 Pass 7336.64 7050.55 7475.00 7392.89 9.85 6.77 80.71 172.65 8.500 1190.54 0.00 1190.54 Pass 7359.72 7072.64 7500.00 7412.20 9.87 6.82 80.66 172.60 8.500 1181.00 0.00 1181.00 Pass 7382.64 7094.57 7525.00 7431.23 9.89 6.87 80.60 172.54 8.500 1171.07 0.00 1171.07 Pass 7405.37 7116.33 7550.00 7449.98 9.92 6.93 80.54 172.48 8.500 1160.75 0.00 1160.75 Pass 7427.92 7137.92 7575.00 7468.43 9.94 6.99 80.48 172.42 8.500 1150.03 0.00 1150.03 Pass 7450.28 7159.32 7600.00 7486.59 9.97 7.04 80.41 172.36 8.500 1138.93 0.00 1138.93 Pass rZAM T~RRIr= L NUBBLE BP EXPLORATION AK INC „ PO BOX 196612 MB 7-5_ Mastercard Check" ANCHORAGE, AK 99519-6612 PAY TO 7HE IC'C~" ~ ~ ~ l /.. l l~_ ~ ! I ?1 ... Firs NaUOnal ank, Alaska s~~~° ~~- Anchorage, AK 99501 MEMO ~ /" ( ~' ~: 1 2 5 2 0 0'D 6 0~ 9' 9 i 4 ~~~ 6 2 2? ~~~ 15:5 6,1^ 0 1 S 9 ss-siz5s 159 DATE ' V ~' /~~. • • TRANSMITAL LETTER CHECK LIST CIRCLE APPROPRIATE LETTER/PARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELL NAME PTD# Development Exploration Service Stratigraphic CHECK WAAT ADD-OHS "CLUE"~ APPLIES (OPTIONS) MULTI The permit is for a new wellbore segment of LATERAL existing well ~ , Permit No, ~ API No. (lf API number Production. should continue io be reported as last two. (2) digits a function~of ibe original API. number. stated are between 60-69) above. PILOT HOLE In accordance with 20 AAC 25.005(f), all (PH) records, data and logs acquired for ibe pilot hole must be clearly differentiated yin both name (name on permit plus PIS and API number (50 - ~0/80) from records, data and logs acquired . for well (name on permit). SPACING The permit is approved subject ~to full EXCEPT]ON compliance with 20 AAC 25.055. Approval to perforate and produce is contingent upon issuance of a conservation order approving a spacing ~ exception. (Company Name) assumes ibe liability of any protest to the spacing .exception that may occur. DRY DITCH ~ All dry ditch sample sets submitted io the SAMPLE Commission must be in no greater than 30' sample intervals from below ibe permafrost or from where samples are first caught and 0' sample intervals through target zones. WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 Well Name: PRUDHOE BAY UNIT Z-04A Program DEV Well bore seg ^ PTD#:2042300 Company BP EXPLORATION (ALASKA) INC Initial ClasslType DEV f 1-0IL GeoArea 890 Unit 11650 On/Off Shore On Annular Disposal ^ Administration 1 Petmit_feeattached-------------------------------------------- _Y_es- -------------------,----------------- ------------------------------------ 2 Lease number appropriate - - - - - Yes - - - - ---------------------- 3 Unique well-name and number -- ------ --- -- ----- - -- - -- Yes- ----- -- -- ------- ------------ --- --- ------ ----- -- ---..-...----- 4 Welllocat_edin_a_defned-po41--.--------------------------------- Yes- ---------.--- ------------------------------------------------------ 5 Well located proper distance from drilling unitboundary__-___________________ Yes_ _________ _-_________________ --------------------------------------------- 6 Well located proper distance from other wells_--__-___-______.----.__. Yes- -------------------------- 7 Sufficient acreage_avail_ablein-drillingunit_________________________ __ ___ Yes_ ____________________.-______ 8 If_deviated,is_wellboreplatincluded---.________-___________________ Yes_ _______-__--_____________ ------------------------------------------------- 9 Operator only affected party - - - - - - Yes - - 10 Operator has_appropriatebondinforce --------------------- --- -- -- Yes- --- - - -- --------- ------ --- - .........- - -... ---------- -- 11 Permit can bei_ssuedwithoutconsenrationorder____________________________ Yes_ __--__--__ --------------------------------------------------------------- Appr Date 12 Permit can be issued without administrative_approval _ - - - Yes - - - - .. - ... - 11110/2004 13 Can permit be approved before 15-day wait Yes 14 Nlell located within area and_strata authprized 4y Injection Order # (pit 10# in_comments). (FOf_ NA- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ------- 15 Allwells_within1/4_milearea_ofreyiewidentified(Forservieewellonly)_______________ Nq- .._-___--_-.--.-.-----------__-_---_------__--_,.------__-------_-- _ 16 Pre-produced injector: duration of preprods~ction less than 3 months (For service well only) - _ NA- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- -- 17 ACMP_Finding of Consistency-has been issued fo[this project- NA_ -------------------------------------------- ------------------------- Engineering 18 Conductorstring-provided_________________________________________ NA__ __ _____ --------------------------------------------------------------------- 19 Surface casingprotects all_knpwn USDWS - - - - - NA 20 CMT_vol_adeguate_tocircul_ate_onconductcr&surfcsg------------------------ NA-- _---..--_.-----__-__--__.__---_-------.-_-__-_---..--. ----------------- 21 GMT_vol_adequate_totie-inlongstringtosurfcsg-----------------------__, NA__ __-___--__--____ ------------------------------------------------------ 22 CMT-will coyer all known-productiyehorizon_s________________________ _____ Yes_ _____-_______-__--_--________ 23 Casing designs adequate for C,.T, B &-permafrost_ - - - - - - - - - - - - - - - - - - _ Yes _ _ _ _ _ _ _ _ 24 Adequate tankage_or reserve pit - - - - - - - - - - - - . Yes - - - - - -Nabors-7E$: - - - - - - - - 25 Ifa_re-drill,has_a1.0-403 foraband4nmenfbeenapRroved---------------------- Yes_ -----10!15!2004._-_______--_---_----. - - -- 26 Adequatewellboreseparation_proposed ------------- ----------- -- -- Yes- -- --- -- -------------- ----------- -- --------- -- -- ------- - - --- 27 Ifdiverterrequired,doesitmeetregulations_______________________________ NA_- __---_Sidet[ack._--____- ---------------------------------------------------- Appr Date 28 Dnllingfluid_prQgramschematic-&equiplisladequate------------------------- Yes. -_...-Max MW-19,2-ppg._____-____---__-_--.-__-_____-_----_.-----_-____-------- WGA 11!12!2004 29 BOPEs,_dotheymeetregulatign_ __ _____ YeS __.__- _ -_-_________ _____ 30 _B_OPE_press rating appropriate; test ko-(put psig in comments) . .. . . . . . .. . . . .. . ... . Yes . . - - . - . Test to 3500 psi. M$P 2820 psi, _ _ _ _ - - _ _ _ - - _ - _ - - - - - - - - - - - - - 31 Choke.manifoldcomplieswlAPI_RP-53(May84)--------------------------- Yes- ------------------------------------------------------------------------- 32 Work willoccu[withoutoperationshutdown______________________________ Yes_ -_-___________--_-_-_-_________ ------------------------------------------- 33 Is Rresence. of H2S gas probable - - No Notas H2S pad. - - - 34 Mechanical_condition of wells within AOR verified (Forsetviee well only) - - - - - - - - - - - - - - NA _ - - - - - _ _ . Geology 35 Pe[mit_canbeissuedwlohydrogen_sulfidemeasures____________________---- No-_ __--________-__----_-_--__--_-_____-------____- - - 36 Data_presentedonpotentialoverpressurezones-__-__--________________ __ NA__ __-_-_- ____, Appr Date 37 Seismicanalysisofshallowgas_zones_____________________-__..-..-. NA _ _-_-_-__-- -__--_ - -- RPC 11!10!2004 38 Seakedconditionsurvey_(ifoff_-shore)------------------------------__- NA- -- -- -_-.--_.._ - - - - - - - - 39 _Contactnamelphone_forweeklyprogress_reports[exploratoryonly) _____________ __ NA_ -__ -__ --__-______________-____________________--_--__-__--___--__--_---- Geologic Engineering Public Commissio ner: Date: Date Date Commissioner. ' ner jj
