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211-013
MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Friday, January 12, 2024 SUBJECT:Mechanical Integrity Tests TO: FROM:Brian Bixby P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC Z-67 PRUDHOE BAY UNIT Z-67 Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 01/12/2024 Z-67 50-029-23441-00-00 211-013-0 G SPT 8322 2110130 2080 1973 1979 1977 1975 35 40 40 41 4YRTST P Brian Bixby 11/19/2023 30 MinPretestInitial15 Min Well Name Type Test Notes: Interval P/F Well Permit Number: Type Inj TVD PTD Test psi API Well Number Inspector Name:PRUDHOE BAY UNIT Z-67 Inspection Date: Tubing OA Packer Depth 10 2710 2623 2611IA 45 Min 60 Min Rel Insp Num: Insp Num:mitBDB231119153922 BBL Pumped:2.4 BBL Returned:2.3 Friday, January 12, 2024 Page 1 of 1 Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:211-013 6.50-029-23441-00-00 PRUDHOE BAY, PRUDHOE OIL BP Exploration (Alaska), Inc 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 11305 11010 8980 9380 11210 11010 8322 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 35 - 115 35 - 115 Surface 3289 9-5/8" 35 - 3324 35 - 3101 5750 3090 Intermediate 9621 7" 33 - 9654 33 - 8580 7240 5410 Production Perforation Depth: Measured depth: 10130 - 11150 feet True vertical depth:8922 - 8928 feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# 13Cr85 31 - 9505 31 - 8440 9380 8322Packers and SSSV (type, measured and true vertical depth) 4-1/2" HES TNT Perm Packer Liner 1806 4-1/2" 9495 - 11301 8430 - 8858 8430 7500 12. Stimulation or cement squeeze summary: Intervals treated (measured): Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 7002002051 9177 50 2200 Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Peru, Cale Cale.Peru@bp.com Authorized Name:Peru, Cale Authorized Title: Authorized Signature with Date:Contact Phone:+1 9075644522 Treatment descriptions including volumes used and final pressure: 13. Petroleum Engineer Operations Performed1. Abandon Plug Perforations 5 Fracture Stimulate Pull Tubing GSTOR WINJ WAG 5 GINJ SUSP SPLUG 16. Well Status after work:Oil Gas Exploratory Development Stratigraphic 15. Well Class after work: 5Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured8856 Sundry Number or N/A if C.O. Exempt: N/A 4-1/2"+(6MCX 2270 2211 Junk Packer Printed and Electronic Fracture Stimulation Data 5 Set CIBP Operations shutdown Change Approved Program 5 Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend 5Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well 3.Address: P.O. Box 196612 Anchorage, AK 99519-6612 7.Property Designation (Lease Number):ADL 028262 & 028245 PBU Z-67 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations By Samantha Carlisle at 2:59 pm, Jun 09, 2020 Cale Peru Digitally signed by Cale Peru Date: 2020.06.09 14:18:12 -08'00' DSR-6/9/2020 SFD 6/10/2020MGR09JUN2020RBDMS HEW 6/10/2020 ACTIVITYDATE SUMMARY 11/5/2019 T/I/O = 570/106/38. Temp = 124°. AOGCC MIT-IA PASSED to PASSED psi (Reg compliance). Witnessed by Austin McLeod. On PWI. IA FL near surface, OA FL @ near surface. Max applied pressure = 2300 psi. Target pressure = 2100 psi. Bled IAP from 106 psi to 60 psi in <min, got fluid to surface. Used 2.3 bbls Amb Diesel to pressure IA from 60 psi to 2300 psi. IAP lost 43 psi in the 1st 15 min, 14 psi in the 2nd 15 min for a total of 57 psi in 30 min. Bled IAP to 60 psi, returned 2 bbls. Continued IA bleed to 20 psi, returned an additional 0.15 bbls. Bled OAP to 0+ psi, returned 0.15 bbls. Used AL gas (well #10) to increase IAP to 210 psi. IA FL @ 20'. Hung tags. Final WHPs = 520/210/0+. SV = C. WV, SSV, MV = O. IA, OA = OTG. 13:30 11/24/2019 ***WELL INJECTING ON ARRIVAL*** (Profile Mod) DRIFT TAG MCX w/ 3.85" G-RING TO 2241' SLM PULL 4-1/2" MCX @ 2270' MD ***WELL S/I ON DEPARTURE, DSO NOTIFIED*** 5/4/2020 CTU #9 1.75" CT. Job Scope: Drift & Log/Set CIBP/Add Perf Move from DS 1 to Z pad. ***In Progress*** 5/5/2020 CTU #9 1.75" CT. Job Scope: Drift & Log/Set CIBP/Add Perf Rig up CTU. MU & RIH w/ HES 2-7/8" Logging Carrier & Baker Venturi w/ 3.68" Mule Shoe. Tag high at 10224'. Work Venturi down to 10236', unable to make further progress. Log off obstruction up to 9300'. Flagged pipe at 10146'. Pooh. Discuss w/ APE. Call out for motor & mill. Trim 30' of pipe. Received good data ( 0' correction, Correlate to Slb MCNL 18-April- 2013). Corrected Obstruction Depth = 10252.63'. MU & RIH w/ Baker 2-7/8" Motor & 3.70" Mill. Mill from 10255ft to 11033ft. ***In Progress*** 5/6/2020 CTU #9 1.75" CT. Job Scope: Drift & Log/Set CIBP/Add Perf Continue to mill from 11033' to a final depth of 11,140'. Had a hard stall at 11,140'. Pooh. Temporarily detained at ~ 10220'. Able to get free. Pooh. Perform Weekly BOP Test. MU & RIH w/ Baker 2-7/8" Motor & 3.70" Bullnose Mill. Clean out from tag of 10909' to 11060' using gel sweeps. POH. LD FCO BHA. ***In Progress*** Daily Report of Well Operations PBU Z-67 Daily Report of Well Operations PBU Z-67 5/7/2020 CTU #9 1.75" CT. Job Scope: Drift & Log/Set CIBP/Add Perf MU & RIH w/ HES 2-7/8" Logging Carrier & Baker Venturi w/ 3.68" Mule Shoe. Log from 11060' to 10745'. Pooh. Pull heavy at 10142'. Work Venturi & perform dry drift to 11050'. Re-log from 11050' to 9300'. Flag pipe at 11010'. Pooh pumping pipe displacement. At surface, Perform Pre Plug Injectivity Test with 1% KCL. 1.9 bpm @ ~ 875psi. 6.5bpm (max rate) @ ~ 1190psi. Recover small remnants of milled CIBP in Venturi. Receive good data ( + 18' Correction). Correlate to Slb MCNL 18-April-2013. MU & RIH w/ Baker CIBP (3.59" OD). Correct depth at Flag. Set Top of CIBP at 11010'. Pooh. Perform Post Plug Injectivity Test with 1% KCL. 1.4 bpm @ ~ 800psi. 6.4bpm (max rate) @ ~ 1183psi. LD CIBP setting BHA. Cut 100ft for chrome management. C/O packoffs & check chains. MU perf gun #1. ***In Progress*** 5/8/2020 CTU #9 1.75" CT. Job Scope: Drift & Log/Set CIBP/Add Perf RIH w/ Slb 2.0" PJ-Omega Perf Gun #1. Tag CIBP, correct depth. Puh & Perforate from 10930'-10961' (Reference Depth: 10929' - 10960') w/ 2.88" 2906 PJ-Omega 6spf. Pooh. All shots fired, ball recovered. MU & RIH w/ Slb 2-7/8" x 31' Perf Gun #2. Tag CIBP & correct depth. Puh & Perforate 10720' - 10751' (Reference Depth: 10718' - 10749'). Pooh. All shots fired. MU & RIH w/ Slb 2-7/8" x 31' Perf Gun #3. Tag CIBP & correct depth. Puh & Perforate 10530' - 10561' (Reference Depth: 10532' - 10563'). Pooh. All shots fired. MU & RIH w/ Slb 2-7/8" x 31' Perf Gun #4. ***In Progress*** 5/9/2020 CTU #9 1.75" CT. Job Scope: Drift & Log/Set CIBP/Add Perf Continue to RIH w/ Slb 2-7/8" x 31' Perf Gun #4. Tag CIBP, correct depth. Puh & Perforate from 10390'-10421' (Reference Depth: 10389' - 10420') w/ 2.88" 2906 PJ-Omega 6spf. Pooh. Spot check coil at 5996ft - out of tolerance, 0.086" WT. Perform Post Perf Injectivity Test with slick 1% KCL. 1.8 bpm @ ~ 757psi. 6.4bpm (max rate) @ ~ 1037psi. FP well w/ 40 bbls diesel. All shots fired, ball recovered. Blow down reel. Rig down CTU. ***Job Complete*** 5/9/2020 ***WELL S/I ON ARRIVAL (Profile modification) SET 4-1/2" MCX IN 4-1/2" X-NIPPLE AT 2,270' MD (SN= M-54B) RAN 4-1/2" CHECK SET TO 2,270' MD (sheared) ***WELL LEFT S/I UPON DEPARTURE, PAD OP NOTIFIED OF WELL STATUS*** ****DRIFTED TO 2,300' SLM W/ 20'x 3.70" DUMMY WHIPSTOCK FOR SUBSIDENCE SURVEILLANCE**** MEMORANDUM State of Alaska Inspector Name: Austin McLeod Alaska Oil and Gas Conservation Commission To: Jim Regg DATE: Wednesday, November 13, 2019 P.I. Supervisor 2�'-�i�(j I/ j,(? t SUBJECT: Mechanical Integrity Tests BP Exploration (Alaska) Inc. Rel Insp Num: Z-67 FROM: Austin McLeod PRUDHOE BAY UNIT Z-67 Petroleum Inspector Packer Depth Pretest Initial Sre: Inspector Well Reviewed By: Inj P.I. Suprv'�� NON -CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT Z-67 API Well Number 50-029-23441-00-00 Inspector Name: Austin McLeod Permit Number: 211-013-0 Inspection Date: 11/5/2019 - Insp Num: mitSAM191105124149 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well Z-67 •Type Inj W TVD 8322 Tubing 541 542 537 517 " PTD 2110130 Type Test SPT 'fest psi 2080 IA 62 2300 2257 2243 - BBL Pumped: 2.3 ' BBL Returned: 2 OA 39 39 39 - 39 Interval 4YRTST P/F P Notes: MIT -]A Wednesday, November 13, 2019 Page 1 of 1 STATE OF ALASKA •LASKA OIL AND GAS CONSERVATION COMMIS1111 REPORT OF SUNDRY WELL OPERATI 1. Operations Performed Abandon ❑ Plug Perforations 0 Fracture Stimulate ❑ Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program ❑ Plug for Redrill ❑ Perforate New Pool 0 Repair Well ❑ Re-enter Susp Well 0 Other:Convert to Injector Q 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 211-013 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-23441-00-00 7. Property Designation(Lease Number): ADL 0028262 8. Well Name and Number: PBU Z-67 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: RECEIVED Total Depth: measured 11305 feet Plugs DEC 17 2015 P 9 measured feet true vertical 8856 feet Junk measured 11210 feet Effective Depth: measured 11248 feet Packer measured 9380 feet AO GCCvertical 8882 feet Packer true vertical 8322.06 feet iV Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 78 20"91.5#A-53 35-113 35-113 1533 515 Surface 3289 9-5/8"40#L-80 35-3324 35-3101 5750 3090 Intermediate 9621 7"26#L-80 33-9654 33-8580 7240 5410 Production Liner 1806 4-1/2"12.6#13Cr8 9495-11301 8431 -8858 8430 7500 Perforation Depth: Measured depth: 10130-10230 feet 11060-11150 feet ,r True vertical depth: 8922-8963 feet 8964-8928 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr8 31-9505 31 -8440 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 4-1/2"MCX I-SSV 2270 2210 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 28 58 966 1094 270 Subsequent to operation: 8181 1000 2450 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory 0 Development 0 Service Q Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil 0 Gas 0 WDSPL ❑ Printed and Electronic Fracture Stimulation Data 0 GSTOR o WINJ 0 WAG Q 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: 315-597 Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature A C,� - Phone +1 907 564 4424 Date 12/16/15 Form 10-404 Revised 5/2015 V'T` /f 4/lb RBDMS DEC 212015 Submit Original Only • Packers and SSV's Attachment PBU Z-67 SW Name Type MD TVD Depscription Z-67 SSSV 2270 2210.4 4-1/2" MCX I-SSV Z-67 TBG PACKER 9379.73 8322.06 4-1/2" HES TNT Perm Packer Z-67 PACKER 9494.6 8430.5 5" Baker ZXP Top Packer . . C N �` C C L U V U 0 _6 o mc J 0 7 N CU o a) L NO L LL U) o a) a) Q O N- U O Q m O a) a) ` 010 N (0 E CO O a) a) U) Q-a a) CO C Eo E m O Q' E . 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(n � ,_ 2L.Lj 2QUw > 2UQm ❑ N * CO o E 0. rn ui '- Erna .0 i- > W N_ O W_ ❑02 - = N m W_ _ ❑ 0 H 111 0- S z U O ¢ m 2 N p o_ o C (n ❑ O H U ❑ N *k (n 2J M > op N Nin 73 ¢ O H ccv ❑ N cK N W N ,_ CC x J H -) O o .o rnco o c c M a c W W70 ' ' 7 , 00 -1 I1 W ch "C N C C)4:5 + @ O ...,'- Z d In J H S OW � J a) u) v � OW 2 w E > H a� Q- u o 0 0 I 1 ° •c w h- U m J W H w' Z J a D H Z w col o w (M C 0 a) 0 0 0 E E p II * w ❑ W W W ¢ ❑ U) C W ¢ W N * * ❑ c .� .cmc a) * * - 7 r- > * J d ❑ (n a. 0' M .E m U) w' d U) * * U) H ❑ o U) H (n * * H U) , co co (/) U) U) .- .- O O O O N N N N a) a) M ,_ rr r r r r ` 0 0 o \ — co / 'G\ e� / � ® % m © O- < / / / 9- o e N. •(7) CO eU) — (NI / § - \ 10 3 /• •G / /> coa A .g cc 2 g 5 ± 0 Ch \ $ w / o x _ - e El E •R - E o = .e E 2 = a CD 9 5 o 0 . co >, �\ \ E\ f gID / f � \ � ƒ c ai .§ m 8 0 o E ® o . / % \ / t 0- E -o a,o \ k0 • ¢ in ii R o . cC /2 �/ d � ± a.) —E > k � O a / > $ CD '[ q j m -J cNi ( 2 _ ( 2 b \ > o > f / / % 2 / co a- % $ Y Y _c - - $ / / O• C) ET) - a— /c/ <9 § m ] - y > o y / g a/ � Ie oI- .- O2 % Lc) \ cnc t o 5 � = oro q E = © o © A i HEE= 4-1/16"OW • = fl SA TES: WELL ANGLE>70°@ 10260' ACTUATOR= EtAKERC Z-67 fillAL KB.BE 88.9' BF.ELB/= 54.6" t - KOP= 40(1 Max Angle 118°@ 11217' I II (mum = 10067 Datum TVD= 2270' —4-1/7'I-ES X NIP, =3.813" 8800'SS 20'X 34'INSULATED conoucToR --1 108' 4 GAS LFT MANDRELS 91.5#,A-53,I)=19.124" ST MD ND DEV TY PE VLV LATCH PORT DATE 9-5/8"CSG,40#,L-80 BTC,ID=8.835" H 3324' 4 3791 3478 36 KBG2 DMY BK 0 11/08/15 Li 3 5688 5011 35 KBG2 El& BK 0 11/08/15 2 7130 6188 30 KBG2 MAY BK 0 11/08/15 1 7994 7002 13 Kf3G2 DRAY BK 0 11/08/15 Minimum ID = 3.725" @ 9492' 4-1/2" HES XN NIPPLE I 9355' —14-v711:S X isIP,ID 3.813" ><- 9380' H r X 4-1/2"FES TNT R<R,ID=3.856" I I 9420' H4-1/2"FES X MP,D=3.813" I I 9492' —4-1/7 HES XN =3.725" 9495' H' X 5"BKR ZXP LTP, =4.250" TOP OF 4-1/2'LM R — 9495' r.• 9505 H'-"2' MBG,U=4-100" 4-1/7 TBG, 12.6#,13CR-85 VAM TOP, H 9504' HELPA)TT NOT LOGGED .0152 bpf,U=3.958' 9511' —T X 5"BKR!AC HY D LW?HGR =4.210" 9521' —5 X 4-1/2"XO,ID=3.900" 7"CSG,26#,L-80 VAM TOP I-C, H 9654' h—A II .0383 bpf, =6.276" • 10065' H 4-1/2-MAKGR RP row PERFORATION SUMMARY REF LOG: ANGLE AT TOP FEW:63° pi 10130' Note:Refer to Production DB for historical perf data SIZE SPF 1\1113:NAL Op-i/Sqz SHOT SO7 2-7/8" 6 10130- 10230 0 07/20/11 2-7/8" 6 11060-11150 0 07/20/11 11210' —FISH:CI:WM.1ED CH(10/31/15) FETIDH 11248' 4444 •••• 444 4-1/2"UR, 12.6#,L-80 VAM TOP, H 11301' .0152 bpf,U=3.958" DATE REV BY COMMENTS DATE REV BY COPMENTS PRUDHOE BAY UNIT 07/23/11 D-14 ORIGINAL COMPLETION MIL: Z-67 11/06/13 ATO/JAC SET EZ DRLL PLUG(10/30/13) RIRMIT No:s2110130 10/03/14 JMG/J1.43 GLV C/0(09/23/14) AR No: 50-029-23441-00 11/02/15 ALUM]FISH-CBP PALLED DH(10/31/15) SEC 19,T11N,R12E,972'FN,_&114T FV& 12/07/15 BF/JM) GLV C/0(11/08/15) BP Exploration(Alaska) • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: P.I. DATE: Monday,November 23,2015 im RpSUBJECT: Mechanical Integrity Tests PSuper visor (Fell (1(SCI(SCI r� BP EXPLORATION(ALASKA)INC. Z-67 FROM: Brian Bixby PRUDHOE BAY UNIT Z-67 Petroleum Inspector Src: Inspector Reviewed By: P.I.Supry NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT Z-67 API Well Number 50-029-23441-00-00 Inspector Name: Brian Bixby Permit Number: 211-013-0 Inspection Date: 11/22/2015 Insp Num: mitBDB151122163242 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well Z-67 Type Inj W TVD 8322 ' Tubing 283 294 - 286 - 288 PTD 2110130 Type Test SPT Test psi 2080 IA 722 2504 2458 - 2456 . Interval INITAL P/F P v OA 110 122 125 - 125 . Notes: scotiED SEP 16 2016 Monday,November 23,2015 Page 1 of 1 PROF Tit • • I//j,��� THE STATE Alaska Oil and Gas ofiLAsl anConservation Commission Witt 333 West Seventh Avenue GOVERNOR BILL WALKER Anchorage, Alaska 99501-3572 Voi `'*h'F- r Main: 907.279.1433 OF ALASA'P Fax: 907.276.7542 www.aogcc.alaska.gov Kaity Burton DEC Pad Engineer SCAM E� �' 2015 BP Exploration(Alaska), Inc. r 1 _ ©P 3 P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Z-67 Sundry Number: 315-597 Dear Ms. Burton: Enclosed is the approved application for sundry approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the AOGCC grants for good cause shown, a person affected by it may file with the AOGCC an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Cathy P. oerster Chair DATED this / day of October, 2015 Encl. JL RBDMS OCT 14 2015 • STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COM ION APPLICATION FOR SUNDRY APPR LS 20 AAC 25.280 1. Type of Request: Abandon 0 Plug Perforations ❑ Fracture Stimulate 0 Pull Tubing ❑ Operations shutdown 0 Suspend ❑ Perforate ❑ 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 Convert to Injector • m 2. Operator Name: BP Exploration(Alaska),Inc 4. Current Well Class: 5. Permit to Drill Number: 271-013 • 3, Address: P.O.Box 196612 Anchorage,AK Exploratory 0 Development 0 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-23441-00-00 • 7, If perforating: What Regulation or Conservation Order governs well spacing in this pool? 8. Well Name and Number: Will planned perforations require a spacing exception? Yes 0 No ® , PBU Z-67 • V RECEIED 9. Property Designation(Lease Number): 10. Field/Pools: ADL 0028262 PRUDHOE BAY,PRUDHOE OIL 11. PRESENT WELL CONDITION SUMMARY /di t 2 2015 11. )5 Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD(ft): Effective Depth TVD(ft): Plugs(measured): t r „1,181157‘362.--- 8856 • 10249 8970 10249 /� Casin4I e,jitength Size MD TVD Burst collapse Structu I q' 77 Conductor 78 20"91.5#A-53 35-113 35-113 1533 515 Surface 3289 9-5/8"40#L-80 35-3324 35-3101 5750 3090 Intermediate 9621 7"26#L-80 33-9654 33-8580 7240 5410 Production Liner 1806 4-1/2"12.6#13Cr80 9495-11301 8431-8858 8430 7500 Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): 10130-10230/11060-11150 8922-8963/8964-8928 4-1/2"12.6#13Cr85 13Cr85 31 -9505 Packers and SSSV Type: See Attachment Packers and SSSV MD(ft)and ND(ft): See Attachment No SSSV Installed No SSSV Installed 12.Attachments: Description Summary of Proposal 0 13.Well Class after proposed work: • BOP Sketch 0 Detailed Operations Program IRI Exploratory 0 Stratigraphic 0 Development ❑ Service Et 14.Estimated Date for Commencing Operations: 15. Well Status after proposed work: Oil 0 Gas 0 WDSPL 0 Suspended 0 16.Verbal Approval: Date: WINJ 0 GINJ❑ WAG ® • Abandoned ❑ Commission Representative: Op Shutdown 0 GSTOR 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Burton,Kaity Email Kaity.Burton@bp.com Printed Name Burton,Kaity Title Pad Engineer Signature c4.7 c t/J Phone +1 907 564 5554 Date Qt Z3 '/O(5 �(J VJ/ COMMISSION USE ONLY h Conditions of approval:Notify Commission so that a representative may witness Sundry Number: �� 35 -591 Plug Integrity 0 BOP Test ❑ Mechanical Integrity Test 0 Location Clearance 0 Other: / �f--r /4V6 t 2-y5-� j t,i t 7--f .'`i-- o—e-ay-r ,,"-e-c G4 / 1 °� Spacing Exception Required? Yes❑ No hJ Subsequent Form Required: /r--- 4 c q Approved by:oe/e4.7 p...9)..e.„,,th,...._ COMMISSIONER COMMISSIONYTHE 777- <°% l ORIGINAL 3c RBDMS'�OCT 14 2015 7 av- Submit Form and Form 10-403 Revised 5/2015 Approved application is valid for 12 months from the date of approval. Attachments in Duplicate v<6 7..2- ,-/.5 • 0 Packers and SSV's Attachment ADL0028262 SW Name Type j MD TVD Depscription Z-67 TBG PACKER 9379.73 8322.06 4-1/2" HES TNT Perm Packer Z-67 PACKER 9494.6 8430.5 5" Baker ZXP Top Packer . -:., •• BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 August 26, 2015 Alaska Oil &Gas Conservation Commission 333 West 7Th Avenue Suite 100 Anchorage, AK. 99501 Sundry Notice Z-67 Conversion from Production to Injection BP Exploration Alaska, Inc. proposes to convert well Z-67 from a long-term shut-in pre-produced injector • to a WAG injector well as part of the Northwest Eileen Pattern Flood Development project. Well Z-67 was drilled and completed on 07/23/2011. It is a U-shaped well cemented and perforated only in the 41 P with the original objective of converting the well to WAG injection once it became V uncompetitive. The well was pre-produced until April 2013 when it was no longer competitive due to low oil. It is now planned to proceed with conversion to injection to provide pressure support, waterflood, and miscible gas injection sweep for the area. The forward plan for conversion of well Z-67 is attached along with an area of review for offset wells. The 1r-ell %s Ae" r For questions or comments, please contact: Kaity Burton, Pad Engineer Co�Cvc. Con jet Aro/ 7° ; is orry ,AQf Objectives P /04goilGgro.fr/ Se 'vi a eA x The conversion of Z-67 targets Zone 4 EOR reserves below the 41 N shale in the Eileen West End (EWE) region. The injector in this area is designed to support wells Z-65 and Z-66. Support to Z-50 is also anticipated after adding 20ft of perfs in the heel. Z-67 appears well situated in its current location to - sweep oil to these producers enabling MI benefits. Current Well Status Z-67 is currently an operable Producer. The last well test on 04/21/2013 indicated 3560 bfpd, with just 3 bopd, 99% watercut, and 29,667scf/bbl GOR. At these rates, the well is uncompetitive due to gas capacity constraints in the EWE Large Diameter Flowline (EWE LDF), and high water cut. To be converted to injection, Z-67 must demonstrate (1) competent cement across upper reservoirs and (2) pass a pressure test to 4000 psi to operate as a WAG injector. An Ultrasonic Imager Tool (USIT) cement log was run in July 2011 to determine the cement quality behind the production casing. The log was run from 9487 ft up to 30 ft MD. Based on the available data from the USIT log run 07/19/2011 it can be concluded that good cement exists up to minimum 8170' MD (bottom log interval 9487' MD.) We did not run a cement evaluation log in the production liner. A pulsed neutron log with borax was run for channel evaluation which showed no fluid channeling from the perfs at 10130' MD to 9450' MD. Top of Sag River (the top of the producing pool) is at 9662' MD The borax log in the production liner and the USIT log in the production casing section prove that there is a minimum of 1300' of cement isolation behind pipe to prevent fluid movement to other pools. On September 23, 2014 Z-67 passed a combo mechanical integrity test on the tubing and inner annulus (CMIT-TxIA) to 3000 psi demonstrating integrity. A state witnessed pressure test will still need to be performed for the Alaska Oil and Gas Conservation Commission (AOGCC) prior to injection. Facilities Page 1 of 5 • • Z-67 was designed and drilled as a pre-produced injector in 2011. The well was initially tied in as a gas lifted producer and was to be converted to injection service after 2-3 years of pre-production. The original scope of work included twinning water and MI injection with well Z-09, as this well was intended for conversion to injection at the same time. The injector conversion of Z-09A was cancelled. For this reason, the Z-67 injector conversion scope of work needed to be revised. The new Z-67 conversion to WAG injection scope includes: Provide water injection for Z-67i by twinning with Z-02 WI. Provide miscible injection at Z-67i by twinning with Z-02 MI. Place Z-09 production and gas lift to Not in Service (NIS) status. Extend MI header from Z-02 to Z-67i (Approx. 120 LF). Install production connection for Z-09 future use. Install MI header connection for Z-06 future use. Install injection header connections on MI and PWI lines for both Z-06A and Z-07B for future conversion. Z-67i will be configured with water and gas metering in similar fashion to other West End wells. This work is expected to be completed in approximately one year due to the length of header extensions on the pad. Well Work—Scope 1. Install dummy gas lift valves. 2. MITIA at 2500 psi, step rate injection test. 3. Place well on water injection (confirm AOGCC approval prior to injection, target and maximum injection rates TBD by step rate test) 4. AOGCC witnessed MITIA at 4000 psi (WAG injection) after injection stabilized. Area of review There are 6 wells that come within % mile of Z-67 bottomhole location at the top of Ivishak. The following table displays the 6 wells within '/a mile, their distance from Z-67, and cementing records. Page 2 of 5 IP • _ TSAD:lructur:Map:Z-67._.In_jictor Conversion „ \\ os , ___. „70 -7--------- : ,, ---- -- . .---- ,- /V Pi i •,. , I , 40i;e, ‘'' ,,---.•- ,,,,,Pfn I N i 7------7-- 1 ,,,,,,/- ,/9. ' ,,, ', , / i „,./.1...."37-°:"---, 41,,. ,/:// :i 4 1 \ / / / It / t .0.1rHLANCXS A, /- , i / /7? I 1 -5957000 \', \ki s\s, ' • ..,-,._ .._ ‘/ 1 I \ \ , \ - -----s- 8720 \ . / 11 . e \ \j\ N \ 4 ' ---/// — '' / ..<.---... -oY4 4 ° I/1.(-2-4c- '\ , t--1 n \ / / • \ i, `'...,',... ' I ( N N. \ ---- -- \ • ,, / .47-0APB2 / '' \\ V9-5955000 cr, s , : 1.3.! ' i -65P81 1 1 9,' kli? / .................4 01AP B3 -rcee-open producer pertoreirobs ,_ i ' i , `,., dray-closed perforaeons `8 4'''..'0\... Red Dots enth:Ass eepsdl annotated in red ic ., '. / >1. Color bar 11. ' '1 \ / / ' Co 1-1,ch discs IC.s - // z,./-111., ' ‘‘ ' -01[37,„/ , ',....._-..” . , ... / / ,_____,... 1 515.1 52 I / / ' 1 RI ,. i i 7 St / ,.-II 1 1 1 i 59600 -,1 i XV: Figure 1: Z-67 Area Location Map Page 3 of 5 ' ����& �� ��� . �� ��� rsxoa:,wntum::::Za7m]ontn,onnv=,mon ^""=.` /'-'7'''''''—'1 7t3 ' '?'"'M t'''' i 1 ,gy. ' _I SISG-riA\C\ ' / , . \ ,,,__......\ ' 1 6 \..... .,./'''''-''''.......""".."' , '' ,s. -°°mm . —.~5O(l~ T�~ i // it / / _� ~ \ _+�7 -\ / �� ;IOW-closed perforadons \ TSAD penetration, _'Red Dols web Evdss ceps,annotated in red / ' [ Color bar ` - ) / reds-Inge.blues-low r / \ \\� �ozu / / , iAuthor \ ,/ ^ � \ / \� i� �� \mo� � � _ /`` I °~~~ 59=00 =^" Figure 2: Z-67 Bottomhole Location Area Map, 1/4mile radius circle centered around Z-67 |viohok perforations Page 4 of 5 • i TREE= 4-1/16"061/ NOLO= Z-67 SAFETY NOTES:WELL ANGLE 70.0 102110. ALMA-TM= — BAKERC MTIAL KB.BJ: 88.O 5r RJA/= 54.8_ I - I KOP_, 4°111 Aie Anglo 118".1121/ I 2274' 4t/2'FEB X NP,D=3.813' Colum MO■ 10062 Drktm ND= 6800 SS' Zr X 34'WILLA7EIDCO 10lCrOR 108' GAS i FT8MICRE3S 91.55*,A-53,IC)=19.124' •67' ND _IVO BEV TYRE, VLV LATCH PbRr:-DATE 9-5/6"C5O,IOR L-80 BTC 0.6435' f 3524' C:I 4 3791 3478 36 KSG2 DOLE 9K 16 06/30/12 3 5688 5011 35 P4302 i OOME BK 16 maw? 2 7130 6188 30 KNG2ICOME BK 16 06130112 Yininium D=3.725"fa 9492" 1 7904 2 13 ► So tl+t 22 08125113 I j4-112"HESXN NIPPLE 1 I II L us_ 5____L (- 4 ur►esxIW,ID=3.813• X L 9380' HrX4•Ir?1=TNT R(P,13law 1 ■ r L 11424' 1--{41/1 HES XMP 13=3.813' II / f %s2• -{41/2"HES XN P ,,C.3.725 1 1416' HT (TOPOf 41%2`LFR yam' .4 11606' F-14.yr win o=4.100' 4.111?TOG,12 60,13GR-IS VAAI TOP. $304' acyl WIT 1036 .0152 ,ID=3.968' 1411' Hrx5"EKRI4CFWD LNRMGR,1D=4.210" 1621' 5'*4-lir x0.1=3.800' r CSG,280.L-80/AM TCP Ifw 1—L 5654• • , .0383 6pf,0=6 2713' 0 l 10065' H41fY LAKEN fl1P iota IEFFORA TCIN SULM'1RI' FEF LOG. Ill AFXI.EAT TOPP$NF:63'Q 10130' 10240 4112 HP9¢MILL COP(10r]Ox15) Pbh_Rohr to Reduction 08 for Artkancal port dataMil SQE SPF' NR8>VAL OPS^ SHOT 5(3Z 2-7f8 0 10130-10230 - 0 07/20/1/ 2-7/8 6 11060-11150 C 07120/11 PM 112411' _ we. +4144444 4117 Llft,12,80,L-80 VAIN TOP, -4 1130V -. • ,.0152 ppf,D=3.950" DATE (FEV BY COMIENTS DATE REV BY COMMIS PRtAHl7E BAY UNIT 07R23n1 1 0.14 ORIGINAL COMPLETION 0711/13 080.110 CORRECTED&MX MIME »F3i;Z-67 !!II 0805+11' PJC DWG DRAFT C JFIIEf,'TIONS 0!11110x13 M R GLV CK)(0825113) PEFa T Ma 2110130 1 08077111 Mkt RIC W4AL ORLG CORRECTIONS 1t13013 PJC DRAWING C)RBC1I) AR No: 50.029 23441-00 1! 08/17/11 LB'PJC 7'(90 OOI TLF 1106/13 A IC)V SETQ 1Ri L FLl1G(1(Y'JOV13)' SEG 19,11105 012E 97 Fly 8 114T FY1l Figure 5. Z-67 Wellbore Schematic Page 5 of 5 • • Well Z-67- being converted to injection Distance Z-67 and well 0' Perforation Interval Perfs between: 10130'-11150' TD - MD (ft) Csg size/wt Cementing Information Cemented with 155 bbls of LiteCrete at 11 ppg and 41.2 bbls of 15.8 ppg cement. It is estimated Hole: 8-3/4" that 8bbls of cement were lost Intermediate Liner/Casing: 9654' Casing: 7", during the job. Plug was bumped 26#, L-80 and casing was tested to 4000 psi. A USIT was run to verify isolation and found Top of Cement at 4000' MD. Cemented with 45bbls of 15.8PPG 4-1/2", class G cement. 5bbls cement Drilling/Production Liner: 11,301 12.6#, L-80 returns to surface. The plug was bumped and displaced with 1500psi. Well Z-01 &Z-01A &Z-01B Distance Z-67 and well 1600' Perforation Interval TD- MD (ft) Csg size/wt Cementing Information Cemented with 2169cu ft of Class 'G'cement. Records indicate the Hole 12-1/4" casing was tested to 3000psi in Casing 9- 1988 when set. Z-01, Z-01A, and Intermediate Liner/Casing: 10192' 5/8", 47#, L- Z-01 B all share the same 80 intermediate casing. Z-01A was suspended when drilled and plugged back. Drilling/Production Liner: 10348' 7" 26# L-80 Z-01 Cemented with 326cu ft of Class 'G' cement. • Well Z-50 Distance Z-67 and well 2510' Perforation Interval 9205'-10808' TD- MD (ft) Csg size/wt Cementing Information Hole: 8-3/4" Cemented with 152 bbls of 11 ppg Intermediate Liner/Casing: 8,995 Liner: 7", and 38 bbls of 15.8 ppg cement. 26#, L-80 Plug was bumped and casing was tested to 3500 psi. Hole: 6-1/4" Drilling/Production Liner: 11,068 Liner: 4-1/2", Liner not cemented instead set 12.6#, 13CR- with packer tested to 3500psi. 85 Well Z-65 Distance Z-67 and well 1200' Perforation Interval 10120' through 12080' MD TD- MD (ft) Csg size/wt Cementing Information Cemented with 141 bbls of 11 ppg and 21 bbls of 15.8 ppg cement. Hole 8-3/4" Plug was bumped and casing was Intermediate Liner/Casing: 9230' Casing: 7", tested to 2500 psi. Second stage 26#, L-80 cement job pumped 52 bbls of 11 ppg cement no losses experienced. Hole: 6-1/4" Cemented with 5 bbls of 11.5 ppg Drilling/Production Liner: 12375' Liner: 4-1/2", and 80 bbls of 15.8 ppg cement. 12.6#, 13CR- Plug was bumped and casing was 80 tested to 2000 psi. Well Z-66 Distance Z-67 and well 930' Perforation Interval 10038-12910' TD - MD (ft) Csg size/wt Cementing Information Cemented with 165.5 bbls of Hole 8-3/4" LiteCrete at 11.5 ppg and 42 bbls Intermediate Liner/Casing: 9859' Casing: 7", of 15.8 ppg cement. Plug was not 26#, L-80 bumped. Casing pressure tested to 3500psi. Hole: 6-1/8" Liner was not cemented instead Drilling/Production Liner: 13384' Liner: 4-1/2", set with packer tested to 3500psi 12.6#, L-80 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. 1 CQ Identifier - � Well HistoryFile dent er 1 � _ � � Organizing(done) Two-sided III IIIIII 11111111 ❑ Rescan Needed III U 1 11 II 1 III III RES AN DIGITAL DATA OVERSIZED (Scannable) C or Items: ❑ Di kettes, No. i ❑ Maps: Greyscale Items: Other, No/Type: GP! (") Y ' OthOther Items Scannable by a Large Scanner Poor Quality Originals: �J OVERSIZED (Non-Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Maria Date: 14/011Z/-* /s/ rY P Project Proofing III 11111111111 11 111 BY: aft Date: 6 O /s/ P 1 Scanning Preparation 3 x 30 = g D + ao = TOTAL PAGES 1 10 (Count does not include cover sheet) 141 BY: alb Date: / f /s/ Production Scanning 111111111111 IIII Stage 1 Page Count from Scanned File: I I I (Count does include cover heet) Page Count Matches Number in Scanning Preparation: YES NO BY: 41, Date: W l 0/14. /s/ VV1f3 Stage I 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. I 11111111 In III ReScanned N11111111111 II III BY: Maria Date: /s/ Comments about this file: Quality Checked II 1111111111111111 4 C_ U 05U c .� m w w 4 RI CV = a) in'C7 N •6, co N .13 c o(n �O'O cc N = O 6.5 w.) vm a 0 N E Ea a) = T lo•> :� c 2 o D] 0 0 O N J.N J N Z U ~ "O C N O N Z 7 My 0 j o _Jo 2ix �cc 0 a d 0 O O O J N--Eli 1 N O N N N N N N N O ,v <' co co U Ui 0 N N N N N ? r r i").1 i;"1 C aa 7 E CO c =OU a a) a a s a a a E m 0 0 0 0 0 0 0 0 E IX Q co U O N ca G,N ^ Co CO O ` Z j o (0 10 Y M Msrr Tr N N d d Z Z as m W664t (n z c .t CO 0 Ce O O O M M M V V coLo (�• o.W W J y y > m P •0)) N N Z c 0) It a 0 re Z Ce Z`Fo- o dcn U) 0 0 En f� oo 0 0 ' E zJ 0 0 0 n� N o N d o O a 0) I C) OS OE . 0 0 N U) N U c.1 0 m r (A J j Q N i 0. II""'_ H _ N Z N 2 10 m Q m N c o 0) .2 Cl) D to 0 Z 1 CO ICC ao .� z W Q 0 a Z1 . Q Z O W N N > > '> 1 Q d U o O) Z Z N N N co Z o 0 (n (n R' a' a' Ta m c c c V) 0) co_ 0 0 0 0 3 r-- 1 I E E '� •�) v v 0 .0 v 47. c in 1 c Z •- d 0 0 o c c c y y 0 0 co (n U) _ _ _ �0 Z co E O « ZO t %o' V) v o He G 1- pf� E O_ O_ M_ N c NO O ~ W OA Z N N N N O 0 } H ,_ RIr O. y LL �. O •� u. N Z V p +� LL y •NO N N e0 A J > 0 M D ce O v c °_) Q a J J y Z flifi 13l oe U E a 0 1- 3 3 c W Jw w Ui ° J 3 °Q 0 Q IX 0 1 0 0 riII Q 4 —I N o) U o 5 0 0 c z J '4 a a J U O Qz Y ' °3 m co I— Cl) co 0 we a N O z Q. O U WO li J a W w J U m o Z if., Q o N N 7 Q J o as aN co E o 0 V N J Q q N z o 1 C N CO Q i."6 CO n (= O m ) p p I Q a o I -a> Q c a z E o E .3 D 13 U �a z ^/_ m Lococo M F CO O d IN d N cc • 0 Cl C w IC a a 0 U R STATE OF ALASKA E I V E D • AL,-.6KA OIL AND GAS CONSERVATION COMM.,,ION DEC 0 4 2013 REPORT OF SUNDRY WELL OPERATIONS /py pU1 1.Operations Abandon U Repair Well U Plug Perforations �f . Perforate U Other U " '® C() Performed: Alter Casing ❑ Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended Weill] 2.Operator 4.Well Class Before Work: 5.Permit to Drill Number: Name: BP Exploration(Alaska),Inc Development2 Exploratory ❑ 211-013-0 . 3.Address: P.O.Box 196612 Stratigraphic❑ Service ❑ 6.API Number: Anchorage,AK 99519-6612 50-029-23441-00-00 • 7.Property Designation(Lease Number): 8.Well Name and Number: ADL0028262 t AWsP2.45 PBU Z-67 • 9.Logs(List logs and submit electronic and printed data per 20AAC25.071): 10.Field/Pool(s): PRUDHOE BAY,PRUDHOE OIL • 1 11.Present Well Condition Summary: Total Depth measured 11305 feet Plugs measured 10249 feet i true vertical 8855.71 feet Junk measured None feet Effective Depth measured 10249 feet Packer measured See Attachment feet true vertical 8970.03 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20"91.5#A-53 34.3-114.3 34.3-114.3 0 0 Surface 3289.44 9-5/8"40#L-80 34.85-3324.29 34.85-3100.73 5750 3090 Intermediate None None None None None None Production 9621.12 7"26#L-80 32.86-9653.98 32.86-8580.3 7240 5410 Liner 1806.28 4-1/2"12.6#L-80 9494.72-11301 8430.61-8857.57 8430 7500 Perforation depth Measured depth 10130-10230 feet 11060-11150 feet True Vertical depth 8921.55-8963.06 feet 8963.96-8927.8 feet Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 3 89 3557 1800 344 Subsequent to operation: 51 49 1254 1406 281 14.Attachments: 15.Well Class after work: Copies of Logs and Surveys Run Exploratory Development Q• Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work: Oil ❑✓ Gas U WDSPLU GSTOR ❑ WINJ ❑ WAG Li GINJ ❑ SUSP ❑ SPLUC] 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Garry Catron Email Garry.Catrona.13P.Com Printed Name Garry Catron � � Title PDC PE Signature / er4 ; Phone 564-4424 Date 12/4/2013 VL r: del l ice r,NS DEC 13 20' t /76 11 51 Form 10-404 Revised 10/2012 Submit Original Only Packers and SSV's Attachment ADL0028262 SW Name Type MD ND _ Depscription Z-67 PACKER 9379.85 8233.27 4-1/2" HES TNT Perm Packer Z-67 PACKER 9494.72 8341.71 5" Baker ZXP Top Packer m fl, 000000 O v r O) u)) 0u O 0 O ) 1- O M 00 I� co O N co M m cot` OCAOoco I- co co r- r- r- M co I's r r r 00 0 0 0 ✓• Lo O � v' Tr r co O r coOMaoCD00 ▪ lllll r CD co co co CO CD O CO CO CD CO CO M CO N 0 0 M M Cn Co C') co CD co in co NrM coN O O O r r CD CO O O D r O M 0) 0) 0) C.) 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ZQJQmZ � � Ow � � p � up W (� a > UZQ ( a) ate) * Q d 2 � (nW' � ao0 L _ Z Ow Q m * w aU W < w L0 U Ow W OZ_ WQZp cam * c0 (na w oH 1) 4- 0 o 0 * H- C' Z W W = r- * O CN w co i (fl d ,_ * c O E `- O * (/) 0 aHLL oCC o UH QL0 - W 1_ > = off u) ID 0 _1 J cc0wapp c' u) Q-0U2wQ < 0 QH YLnN (nJ — t p Q oZSJWQZH• H- � a) gOZQH- W WJ ) U UJ1w � v Q. a Eocr2a ~ (¢n0 O - 0 * NW ( 0op ~ Y � ~ CD0c) ° aco Q � � OpaW J NN " i� c � CnW ¢ = (n0 � a000J (V cc Z0UU) H- LLU � Zo ° 2' Oz W2Xw � ~ aa QO1— . Y a a) OcNftQpo_ Q O m 2 Oz = >cW >< = w O O o 0 = c) UW °W° gLUI- 0W o f NQOOuw) 0) OO (X _Jw = HQ o o E 0 tE Z � W W0D O OQJQCOOLLCC MQQ4- w a) m H- `- JILI I- ° 0OZ U � ZH- mJMwmNW 0z ° 2 t = OW> Lij w 2zZyo ° Z >� QW - QWOQQW W Q � Z .E � sa a) � Jf= aZHaoZ (3 °U -pm0 > 2WQQ � � H = zUU Opp T � > _ _ U wQ > W WHw (nHO O Q- cmZYCYZU) LLa0J � m � a_ o_ c 5H- = H -1 (nQUZ ' ' E 3 -) Zcr � W = Dcr (naJ1X � � E E -10 Z 1-- 0 < 0w0 :* * D ° * DwowOJ W rxwDD * * = DU s? * - W' Q = J H- Q U 0o * W' d d LL LL d J W' w O * * d w Y co co Co co � r O O O O N (NI N N N- co a) 0) N N N N O O O O s- In N O u) N II II a 0 w EY) N w N O o < f- m Fb D aD J M d Z p Li_ O CO 1 a J W 0 C 2' O -- w z 0 Lu w LL up G. W W' w N O N oY O a Lu 7, 2 co m 0 z N O • Y a 0 p ILO U O J 0 0J F- t 0 °- C-5 J O < d) viz z O N (/) E p V) G1gQ� W N 000 w pw D 0 0 2 o co w (/) o UJ Z Q ` OI— O a 0 1 0 < UQ \ O J H 4t I- J m O U- z Q O E- O D O z ch O N co • TREE= 4-1/16"CM WOELLHEAD= FMC Z-67 SAFE TOTES: WELL ANGLE>70°@ 10260' ACTUATOR- BAKER C = METAL KB.ELE 88.9' BF.ELEV= 54.6' KOP= 400' Max Angle= 118°@ 1121T , 2270' —{4-1(2"FFS X '1P D=3.813" Datum MD= 10067 Datum TVD= 8800'SS 20"X 34"INSULATED 03 DOCTOR, — 108' �► GAS LIFE MANDRELS 91.5#,A-53,D=19.124" ST NO TVD DEV TYPE VLV LATCH FORT DATE I9-5/8"CSG,40#,L-80 BTC,ID=8.835' H 3324' 4 3791 3478 36 KBG2 DOME BK 16 06/30/12 3 5688 5011 35 KBG2 DOME BK 16 06/30/12 2 7130 6188 30 KBG2 DOME BK 16 06/30/12 1 7994 7002 13 KBG2 SO BK 22 08/25/13 Minimum ID = 3.725" @ 9492' 4-1/2" HES XN NIPPLE p 9355' H4-1/2"I-ES X 4P D=3.813" 9380' H7"X 4-1/2"i- S TNT RR,D=3.856" 9420' 4-1/2"HES X N4?ID=3.813" 9492' --14-1/2"HES XN NP,D=3.725" 9495' —7"X 5"BKR ZXP LTP,ID=4.250" TOP OF 4-1/2"LNR —1 9495' �� 9505' —14-1/2'WLEG,D=4.100" 4-1/2"TBG, 12.6#,13CR-85 VAM TOP, H 9504' I H ELM)TT NOT LOGGED .0152 bpf,D=3.958" ` 9511' H7"X 5"BKR HMC HY D LNR HGR,D=4.210" 9521' —5"X 4-1/2"XO,D=3.900" 7"CSG,26#,L-80 VAM TOP HC, — 9654' I "."—A ' .0383 bpf,D=6.276" 10065' —4-1/2"MAKERPUPJONT FERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF:63"@ 10130' 10249' --14-1/2"I-ES Ez DALL CSP(10/30/13) Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz SHOT SOZ 2-7/8" 6 10130- 10230 0 07/20/11 2-7/8" 6 11060-11150 C 07/20/11 PBTD — 11248' 1111 *1111 4-1/2"LNR, 12.6#,L-80 VAM TOP, — 11301' '4'1'1'4'1 .0152 bpf,D=3.958" DATE REV BY CONIVENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07/23/11 D-14 ORIGINAL COMPLETION 07/11/13 ( 21-VJMD CORRECTED MAX ANGLE WELL: Z-67 08/05/11 PJC DRLG DRAFT CORRECTIONS 09/10/13 WKP/JMD GLV C/O(08/25/13) PERMIT Ib: 2110130 08/07/11 MP/PJC ANAL DRLG CORRECTIONS 10/30/13 PJC DRAVVNG CORECTIONS AIR No: 50-029-23441-00 08/17/11 LB/PJC 7"CSG CORRECTION 11/06/13 ATO/JMD SET EZ DRLL PLUG(10/30/13) SEC 19,T11 N,R12E,972'FNL 8 1147'FW. 10/12/11\VVWR/PJC GLV C/O(09/29/11) 07/05/12 DLW/JMD GLV CIO(06/30/12) BP Exploration(Alaska) Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator@bp.com] Sent: Tuesday, August 27, 2013 9:01 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS WELL PAD S; Wallace, Chris D(DOA); Longden, Kaity Cc: AK, D&C DHD Well Integrity Engineer; Holt, Ryan P;AK, D&C Well Integrity Coordinator; Regg, James B(DOA) Subject: OPERABLE: Producer Z-67 (PTD#2110130)TIFL Passed Attachments: Producer Z-67(PTD#2110130)TIO Plot.docx All, Producer Z-67 (PTD#2110130) passed a TIFL on 08/27/2013 after the inner annulus broke MOASP during a planned pad shutdown. The passing test confirms two competent barriers in the wellbore. The well is reclassified as Operable. A copy of the TIO plot is included for reference. Please call with any questions. Thank you, Jack Disbrow BP Alaska-Well Integrity Coordinator GWGlobal Wells Organ zat or Office: 907.659.5102 WIC Email:AKDCWe1IIntegrityCoor4inatorAbp.com From: AK, D&C Well Integrity Coordinator Sent: Saturday, August 17, 2013 4:35 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Burton, Kaity; 'chris.wallace@alaska.gov'; AK, OPS Well Pad Z; 'jim.regg@alaska.gov' Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; Climer, Laurie A Subject: NOT OPERABLE: Producer Z-67 (PTD #2110130) IA Sustained Pressure All, Producer Z-67 (PTD#2110130) IA pressure exceeded MOASP on 08/14/2013 with TBG/IA/OA= 140/2100/30 psi during planned facility maintenance.At this time,the well cannot be brought online for further diagnostics; it has been reclassified as Not Operable. Plan Forward 1. Ops: Bring well online Under Evaluation 2. DHD: Once well is stable,TIFL Attached is a copy of the TIO plot and wellbore schematic for reference 1 Please call with any questions. Thank you, Laurie Climer (alternate:JacDisbrow) BP Alaska -Well Integrity Coordinator Gk4n'x�k'a ' s4, Orga3"i'auon WIC Office: 907.659.5102 WIC Email: AKDCWellIntegrityCoordinator@BP.com BP.com 2 Producer Z-67 (PTD #2110130)TIO Plot Well:Z-67 4.0611 3.906 --t—hp —a—IA 2.006. 4\.... —�—OA 00A +000A On 1.606 06'01.13 660813 05'15,"3 062213 %20+13 0706"3 07113+13 0721/13 07127/13 0843'13 00(10/13 08117/13 0624/1.3 1 Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator©bp.com] Sent: Saturday,August 17, 2013 4:35 PM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wel!pad Lead;AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan;AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead;AK, RES GPB West Wells Opt Engr;AK, RES GPB East Wells Opt Engr; Burton, Kaity; Wallace, Chris D(DOA);AK, OPS Well Pad Z; Regg, James B(DOA) Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; Climer, Laurie A Subject: NOT OPERABLE: Producer Z-67(PTD#2110130) IA Sustained Pressure Attachments: Z-67 TIO Plot 8-17-13.docx; Z-67 Wellbore Schematic.pdf All, Producer Z-67 (PTD#2110130) IA pressure exceeded MOASP on 08/14/2013 with TBG/IA/OA= 140/2100/30 psi during planned facility maintenance. At this time,the well cannot be brought online for further diagnostics; it has been reclassified as Not Operable. Plan Forward 1. Ops: Bring well online Under Evaluation 2. DHD: Once well is stable,TIFL Attached is a copy of the TIO plot and wellbore schematic for reference Please call with any questions. Thank you, Laurie Climer (.=!Ito-nate, Jack Disbrdnr) BP Alaska - Well Integrity Coordinator GGfi WIC Office: 907.659.5102 WIC Email: AKDCWe1IIntegrityCoordinator(a,BP.com 1 Producer Z-67 (PTD#2110130) TIO Plot 8/17/2013 1NI:Za 1.003 • • • _41_1 --III- -a- 2600 ( -OR CIA ' 'Sr' a • 1.600 mmumminnil • OS1013 05703 0601,13 MaOOV13 061513 062013 062313 070613 0711113 0321VI3 0013/13 030113 Ofir013 061713 TREE= 41/16*CNV VVT3LFEAD= FMC Z-67 _67 SAFETY. .ES: WELL ANGLE>70"@ 10260' i ACTUATOR= BAKER C KB.ELEV= 889' BF.BEV= 54.6' I 1 KOP= 400' Max Angle= 118'4 11217' I r 2270' -14-1/2"FES X NP,D=3.813" Datum MD= 10062' Datum TVD= 8800'SS 20"X 34"INSULA I ED CONDUCTOR H 108' GAS LFT MANDRELS 91.5#,A-53,D=19.124" ST MD ND DEV TYPE VLV LATCH PORT DATE 9-5/8"CSG,40#,L-80 BTC,D=8.835" -I 3324' 4 3791 3478 36 KBG2 DOME BK 16 06/30/12 3 5688 5011 35 KBG2 DOME BK 16 06/30/12 2 7130 6188 30 KBG2 DOME BK 16 06/30/12 1 7994 7002 13 KBG2 SO BK 22 06/30/12 Minimum ID = 3.725" @ 9492' 4-1/2" HES XN NIPPLE • , 9355' -{4-1/2"HES XMP,D=3.813" >c 9380' I---1 7"X 4-1/2"FES TNT PKR.D=3.856" I ' 9420' H4-1/2"FES X NP,D=3.813" 9492' H4-1/2"FES XN NP,D=3.725" 9495' H7"X 5"BKR ZXP LTP,D=4.250" TOP OF 4-1/2"LMR H 9495' 9505' ---14-1/2"VVLEG,D=4.100" 4-1/2"TBG,12.6#, 13CR 85 VAM TOP, H 9504' —c -�ELMD TT NOT LOGGED .0152 bpf,D=3.958" ` 9511' -17"X 5"BKR FMC HY D LNR HGR D=4.210" 9521' S"X 4-1/2"XO,D=3.900" 7"CSG,26#,L-80 VAM TOP I-C, --I 9654' .0383 bpf,V=6.276' • 10065' ---I4-112"MAKER PUP JONT PERFORATION SU 1ARY REF LOG: ANGLE AT TOP PERF:63"@ 10130' Note:Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz SHOT SQZ 2-7/8" 6 10130- 10230 0 07/20/11 2-7/8" 6 11060-11150 0 07/20/11 PBTD H 11248' 4 44 4 X414.4 4-1/2"LNR, 12.6#,L-80 VAM TOP, H 11301' 4.4.4.4.4 .0152 bpf,D=3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07/23111 D-14 ORIGINAL COMPLETION 07/11/13 CRH/JMD CORRECTED MAX ANGLE VVELL: Z-67 08/05/11 PJC DRLG DRAFT CORRECTIONS PERMIT No: 2110130 08/07/11 MJF/PJC FINAL DRLG CORRECTIONS API No: 50-029-23441-00 08/17/11 LB/PJC 7"CSG CORRECTION SEC 19,T11 N,R12E 972'FNL&1147'FWL 10/12/11 VVWR/PJC GLV C/O(09/29/11) 07/05/12 DLW/JMD GLV C/O(06/30/12) BP Exploration(Alaska) a en 6-- co 0 cr) 0 0 000000000 Oa 000000000 N w Zo ' U "v CZ aaa cu o co ;#4o CY . •' L . E z z Z ° '5 o0p W 4 (1) O o > N oNw 0 o N U -I rip a ti' tD co U . 3;~ ° I 0 c m Ii CL C7 N 4 CI a- r M M M M M M Y N os ,� .,I. 0 0 0 ( a s ca a to c ■/ od cd 0O 2 2 E 2 Q Q 2 a @ �, x+ J O O O OO to O 00 CD N �,, M O N N N X d 5 Zco t,,,,---„ pr-)_,.._,Prip J U 1 • 0r 0r LL IW J J w Z Z i_ 0r LL LL LL J J J O O O O I— Z z z 2 I— I— E- I- - ii) E E E E D w w w I�,® I— (r) �i 0 1 0 0 n fV +r a® OA l0 / LCDw F- Q iia/ — (. �-^ X X X N `° ) c . u.:.. ILI Q ert w z z 0 X X X X X X Q 0 H N_ 0 N co l 0 4z Lo co O r N CD VD 0 0 0 0 v o CO F- 0 0 w 0 0 0 0 0 0 0 0 0 ' > o 0 0 0 0 0 0 o0 0 o- C� o o Y U u O a h. 16=1— IL m u_ W Ni U m a in INi cp o ^ 0 0 0 U O O 00 U O cc 0.1 o Dm ii;_ GD 'n N Ycr,• 3 V N El CC Y r E c-I ai Q _1 w CO U m J COrs. co N on MI N co E w E oQ/n u "+ Q o v CD O N OT t' d -1 N O N 9 N CC m Z m 2 . 3 z X Z li = M X a N o U t 2 J cv o 0. O W N u O N rcs a d v el v� E y 3 N Q x a m STATE OF ALASKA 'R `� . F Al A OIL AND GAS CONSERVATION COMM' )N • REPORT OF SUNDRY WELL OPERA IONS MAY 14 2013 1.Operations Abandon U Repair Welt U Plug Perforations U Perforate U Other U , .G_ . _ Performed: Alter Casing 0 Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Others Re-enter Suspended Well❑ 2.Operator 4.Well Class Before Work: 5.Permit to Drill Number: Name: BP Exploration(Alaska),Inc . Developments • Exploratory ❑ 211-013-0 3.Address: P.O.Box 196612 Stratigraphic❑ Service ❑ 6.API Number: Anchorage,AK 99519-6612 50-029-23441-00-00 7.Property Designation(Lease Number): 8.Well Name and Number: ADL0028262 PBU Z-67 9.Logs(List logs and submit electronic and printed data per 20AAC25.071): 10.Field/Pool(s): To Be Submitted PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth measured 11302 feet ' Plugs measured None feet true vertical 8856.97 feet Junk measured None feet Effective Depth measured 11248 feet Packer measured See Attachment feet true vertical 8882.09 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 74 20"91.5#A-53 34-108 34-108 0 0 Surface 3291 9-5/8"40#L-80 33-3324 33-3100.5 5750 3090 Intermediate None None None None None None Production 9622 7"26#L-80 32-9654 32-8580.22 7240 5410 Liner 1807 4-1/2"12.6#L-80 9495-11302 8430.88-8856.97 8430 7500 SII Perforation depth Measured depth 10130-10230 feet 11060-11150 feet li True Vertical depth 8921.42-8962.93 feet 8963.82-8927.66 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 31 -9505 31-8440.27 Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12.Stimulation or cement squeeze summary: Intervals treated(measured): 10130'-10230', 11060'-11150' Treatment descriptions including volumes used and final pressure: 120BBLS BORAX,473 3%NH4CL,65 12%HCL(TITRATED 12.3%,OG/L IRON),65 9:1 MUD ACID(TITRATED 1.2%HF,9.8%HCL,-MG/L IRON) 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 114 46 1482 1637 321 Subsequent to operation: 3 89 3557 1800 344 14.Attachments: 15.Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Developments ' Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work: Oil s . 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: N/A Contact Nita Summerhays Email Nita.SummerhaysCa)_BP.com Printed Name Nita Summerhays , Title Petrotechnical Data Technician / / Signatur- ��i,,I� ���/��, -_ Phone 564-4035 Date 5/13/2013 s Form 10-404 Revised 10/2012 ABDMS MAY 14 20i� Submit Original Only • Daily Report of Well Operations ADL0028262 ACTIVITYDAT= ' ' 4/14/2013 es I nit#2. S/ or o inis / . on inue on SR 4/15/13 ** ASRC Test Unit#2. ** Continued From WSR 4/14/13 ** CT Acid and 8 Hr Test, Inlet Z- 4/15/2013 67, Outlet Z-08.MIRU, PT. **Continued on WSR 4/16/13 ** ASRC Test Unit#2. ** Continued From WSR 4/15/13 ** CT Acid and 8 Hr Test, Inlet Z- 67, Outlet Z-08. Continue PT. 3rd leg Tied to Tanks. PT Complete. Continue STBY for 4/16/2013 CTU. **Continued on WSR 4/17/13 ** ASRC Test Unit#2. ** Continued From WSR 4/16/13 ** CT Acid and 8 Hr Test, inlet Z- 67, Outlet Z-08. Continue PT. 3rd leg Tied to Tanks. PT Complete. Continue STBY for 4/17/2013 CTU. CTU on Location. CTU Milling/ Logging. **Continued on WSR 4/18/13 ** CTU#3 - 1.75" Coil Job objective: Mill scale, Borax/MCNL,Acid stim Arrive on location and rig up unit. Make up 3.70" Turbo scale mill on 2 7/8" motor and RIH. Tagged PBTD down at 11,243' CTM, weight up at 11,236.3' CTM. Flagged pipe at 11,206' and POOH. No wear on mill. RIH w/ SWS MCNL logging BHA 4/17/2013 ...Job in Progress... CTU #3 w/ 1.75" CT-(-C1 V=33.9) Objective-remove scale, run borax log and perform mud acid treatment Continue RIH w/ MCNL logging tools. Liquid pack w/ 1% KCI. Perform MCNL baseline passes from 11219' CTM to 9350'. Pump borax solution into perfs and perform two passes over the same interval. Overflush borax with 1% KCI and perform temperature warmback passes at 1 hr and 3hr. Performed a jewelry log to 7,700'. POOH. Lay down MCNL logging tools. MU 2.25" Ball Drop JSN BHA. RIH. Pump acid schedule w/wax bead diversion (see log for details). 4/18/2013 ***Job continued on 4/19/13*** ASRC Test Unit#2. **Continued From WSR 4/17/13 ** CT Acid and 8 Hr Test, Inlet Z- 67, Outlet Z-08. 4/18/2013 CTU Milling/ Logging. CTU Pumping Acid. **Continued on WSR 4/19/13 ** CTU #3 w/ 1.75" CT-(CTV=33.9) Objective-remove scale, run borax log and perform mud acid treatment Continue RIH w/ MCNL logging tools. Liquid pack w/ 1% KCI. Perform MCNL baseline passes from 11219' CTM to 9350'. Pump borax solution into perfs and perform two passes over the same interval. Overflush borax with 1% KCI and perform temperature warmback passes at 1 hr and 3hr. Performed a jewelry log to 7,700'. POOH. Lay down 4/18/2013 MCNL logging tools. MU 2.25" Ball Drop JSN BHA. RIH. CTU#3 w/ 1.75" CT(CTV=33.9) Job Scope: Acid Treatment w/Wax Bead Diversion POOH. Identified the coil is under the minimal wall thickness in multiple areas. FP tubing w/25bbls 60/40 methanol. Turn well over to ASRC for acid flowback. RDMO, travel to yard for pipe swap. 4/19/2013 ***Job complete*** ASRC Test Unit#2. ** Continued From WSR 4/18/13 ** CT Acid and 8 Hr Test, Inlet Z- 67, Outlet Z-08. CTU Pumping Acid. CTU RDMO. POP Well. Flowback/ Stabilize Well. **Continued on 4/19/2013 WSR 4/20/13 **Pop well*** FLUIDS PUMPED BBLS 61 METH 290 1% KCL W/ SL 580 1% SKCL Daily Report of Well Operations ADL0028262 387 1%KCL 120 BORAX 473 3%NH4CL 65 12% HCL (TITRATED 12.3%, OG/L IRON) 65 9:1 MUD ACID (TITRATED 1.2% HF, 9.8% HCL, -MG/L IRON) 1438 TOTAL Packers and SSV's Attachment ADL0028262 SW Name Type MD TVD Depscription Z-67 PACKER 9380 8233.41 4-1/2" HES TNT Perm Packer Z-67 PACKER 9495 8341.98 5" Baker ZXP Top Packer TREE= 4-1/15'CAN WELLHEAD= FMC SAF DOTES: WELL ANGLE>70°@ 10260' ACTUATOR= BAKER Z-67 KB ELEV= 88.9' BF. ELEV= 54.6' KOP= 400' Max Angle= 18°@ 11217' 2270' 4-12 HES X NIP, ID=3.813" Datum MD= 10062' Datum TVD= 8800'SS 20"X 34"INSULATED CONDUCTOR, H 108' GAS LIFT MANDRELS 91.5#,A-53,ID=19.124" ST MD TVD DEV TYPE VLV LATCH PORT DATE 9-5/8"CSG,40#, L-80 BTC, ID=8 835" —{ 3324' 4 3791 3478 36 KBG2 DOME BK 16 06/30/12 3 5688 5011 35 KBG2 DOME BK 16 06/30/12 2 7130 6188 30 KBG2 DOME BK 16 06/30/12 Minimum ID = 3.725" @ 9492' 1 7994 7002 13 KBG2 SO BK 22 06/30/12 4-1/2" HES XN NIPPLE I I 9355' —{4-12"HES XNIP, ID=3.813" 9380' --IT'X 4-12"HES TNT PKR, ID=3.856" I I 9420' H4-12"HES XNIP, ID=3813" 9492' --I 4-1/2"HES XN NIP,ID=3 725" 9495' Hi"X 5"BKR ZXP LTP ID=4.250 TOP OF 4-1/2"LNR --� 9495' 9505' H4-12 WLEG, ID=4.100 4-12"TBG, 12.6#, 13CR-85 VAM TOP, H 9504' —1 ELM)TT NOT LOGGED .0152 bpf, ID=3.958" 9511' H T'X 5"BKR I-MC HYD LNR HGR 10=4.210" 9521 S"X 4-12"XO, ID=3.900" 7"CSG,26#,L-80 VA TOP HC, —{ 9654' A .0383 bpf.ID=6.276" 10065' —14-12"MAKER PUP JOINT PERFORATION SUMMARY REF LOG ANGLE AT TOP PERF 63°@ 10130' Note. Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6—' 10130- 10230 0 07120/11 2-7/8" 6 11060- 11150 0 07/20/11 PBTD — 11248' *411/.. 4-12"LNR, 12.6#, L-80 VAM TOP, —{ 11301' } •�i .0152bpf, ID=3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07123111 D-14 ORIGINAL COMPLETION WELL Z-67 08/05/11 PJC DRLG CRAFT CORRECTIONS PERMIT No•"2110130 08/07/11 MJF/RIC FINAL DRLG CORRECTIONS API No 50-029-23441-00 08/17/11 LB/PJC 7'CSG CORRECTION SEC 19,T11 N, R12E,972'FNL&1147'FWL 10/12/11 WWR/PJC GLV GO(09/29/11) 07/05/12 DLW/JMD GLV C/O(06/30/12) BP Exploration(Alaska) 2\\•-•0`3 22,530 1-4o O 0) 4 ';I p 0 0 0 0 0 0 0 0 N Or• 'I! o U. i .- `` 0 tri e4 �a 0 rL•�' h m £,, 0 o ' C`C O o ♦� Z r r O a� co 0 O, d N "yCh Q = E. Q a �, r' w V! 0 �-.a H �I N _o M M L. Z Ctto O 1� 1.4 t r) L7 rn l+�1 0r> ` Ln M ax; N Q Rf N- v ,CD .4 . ro ;, Ow v `� ao ...4 . C7 C zxa P H ~ Lu w 2 1 O 0 to N H N 0 N ri ri M ✓ 0 Hrl al - O - 0 H ii H Lli Z /1 Q O H i-v4 H (4, x x 0 y CO Camom O y = w ch r> 0 O 0 Y Y ".. o N Q Q v v v CO O ai o rn C 0 G 00 -O Ln G3 r^ rn N > rn �; Ol n ( Cu m al L N Q w O a1 al ren � ai N r�--. � trD t~D '' C OD C m a Z E ro u Q N N v co m r 2 0 z o o O n 0 w 0. ay a s rn t �y m o_ p u IA 0 H 3 v a _ x a m ori Q 2• ) I — r13 Prb Regg, James B (DOA) Z00(3o From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator@bp.comj yii? �L Sent: Monday, September 17, 2012 2:34 PMS( To: Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity Cc: AK, D&C DHD Well Integrity Engineer; Walker, Greg (D&C) Subject: OPERABLE: Producer Z-67 (PTD#2110130) TIFL Passed All, Producer Z-67 (PTD # 2110130) passed a TIFL confirming tubing integrity is restored. The well is reclassified as Operable. Thank you, Mehreen Vazir BPXA Well Integrity Coordinator From: AK, D&C Well Integrity Coordinator Sent: Thursday, September 13, 2012 7:51 PM To: 'Regg, James B (DOA)'; 'Schwartz, Guy L (DOA)'; AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, i D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; A,, RES GPB East Wells Opt Engr; Longden, Kaity Cc: AK, D&C DHD Well Integrity Engineer; Walker, Greg (D&C) Subject: UNDER EVALUATION: Producer Z-67 (PTD #2110130) Sustain:: Casing Pressure on IA Above MOASP All, Producer Z-67 (PTD #2110130) has been found to have stained casing pressure on the IA above MOASP. Tubing/IA/OA pressures were 2070/2070/Vac on 09/ #/2012. The well is reclassified as Under Evaluation and can remain on production for further diagnostics. The plan forward: 1. Downhole Diagnostics: TIFL 2. Well Integrity Engineer: Evalua • for gas lift valve change out pending TIFL results A TIO Plot and wellbore schemaf is attached for reference: « File: Z-67 TIO Plot 09-13- .docx » « File: Z-67.pdf 1 Pm Regg, James B (DOA) Z i(013 0 From: AK, D&C Well Integrity Coordinator[AKDCWellIntegrityCoordinator@bp.com] cFm /t4 v Sent: Thursday, September 13, 2012 7:51 PM To: Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity Cc: AK, D&C DHD Well Integrity Engineer; Walker, Greg (D&C) Subject: UNDER EVALUATION: Producer Z-67 (PTD#2110130) Sustained Casing Pressure on IA Above MOASP Attachments: Z-67 TIO Plot 09-13-12.docx; Z-67.pdf All, Producer Z-67 (PTD#2110130) has been found to have sustained casing pressure on the IA above MOASP. Tubing/IA/OA pressures were 2070/2070/Vac on 09/10/2012. The well is reclassified as Under Evaluation and can remain on production for further diagnostics. The plan forward: 1. Downhole Diagnostics: TIFL 2. Well Integrity Engineer: Evaluate for gas lift valve change out pending TIFL results A TIO Plot and wellbore schematic is attached for reference: «Z-67 TIO Plot 09-13-12.docx» «Z-67.pdf» _ .J r><- 50r Thank you, CP _ Z 77pj_ Mehreen Vazir 479F):- 72,5vps: BP Alaska - Well Integrity Coordinator WIC Office: 907.659.5102 WIC Email: AKDCWellIntegrityCoordinatorPBP.com 1 ga§1,5 I N i N ISI � N .a7 N .5 • • • O d .� 3 ti N H r N p m ga N *k c\I 03 E._. 0 a. o_ H TREE= 4-1/16"CM/ WELLHEAD= FMC SAFETY NOTES: WELL ANGLE>70°@ 10260' ACTUATOR= BAKERC Z-67 KB.ELEV= 88.9' BF.ELEV= 54.6' KOP= 400` / i Max Angle= 18° 11217` I ' 2270' H4-1/2"HES X NIP, ID=3.813" Datum MD= .....m..„.10062` Datum TVD= 8800'SS 20"X 34"INSULATED CONDUCTOR, —{ 108' ' GAS LIFT MANDRELS 91.5#,A-53,ID=19.124" ST MD TVD DEV TYPE VLV LATCH PORT DATE 9-518"CSG,40#, L-80 BTC, ID=8 835" H 3324' L 4 3791 3478 36 KBG2 DOME BK 16 06/30/12 3 5688 5011 35 KBG2 DOME BK 16 06/30/12 2 7130 6188 30 KBG2 DOME BK 16 06/30/12 1 7994 7002 13 KBG2 SO BK 22 06/30/12 Minimum ID = 3.725" @ 9492' 4_112" HES XN NIPPLE I 1 9355' —4-1/2" HES XNIP, ID=3.813" X 9380' —17“X 4-1/2" HES TNT PKR, ID=3.856" ' , 9420' —14-1/2" HES X NIP, ID=3 813" 1 1 9492' H4-112'HES XN NIP,ID=3 725" 9495' H7"X 5"BKR ZXP LTP,ID=4.250" H TOP OF 4-1/2"LNR 9495' / \ j 9505' H4-1/2'WLEG, ID=4 100" 4-1/2"TBG, 12.6#, 13C R-85 VAM TOP, — 9504' /-1\ H ELND TT NOT LOGGED .0152 bpf,ID=3.958" ' ' 9511' H7'X 5" BKR HNHYDLNRHGR, ID=4 210" 9521' —5"X4-1/2"X0, 10=3.900" 7"CSG,26#,L-80 VAM TOP I-SC, —I 9654' , 1. .0383 bpf, ID=6.276" L11v?_ �zsCi -, • 10065' H4-1/2" MAKER PUP JOINT PERFORATION SUMMARY REF LOG I ANGLE AT TOP PERF 63°@ 10130' Note:Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 10130-10230 0 07/20/11 2-7/8" 6 11060-11150 0 07/20/11 LPBTD — 11248' ♦++' 1�ft. 4-1/2" LNR, 12.6#, L-80 VAM TOP, —I 11301' ' 'L41'*'*•4 i ,0152 bpf,ID=3 958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07/23/11 1-14 ORIGINAL COMPLETION WELL Z-67 08/05/11 PJC DRLG DRAFT CORRECTIONS PERMIT No 12110130 08/07/11 MJF/PJC FINAL DRLG CORRECTIONS API No 50-029-23441-00 08/17/11 LB/PJC 7"CSG CORRECTION SEC 19,T11 N, R12E,972'FNL&1147'FWL 10/12/11 \M/VR/PJc GLV C/O(09/29/11) 07/05/12 DLW/JMD GLV 0/0(06/30/12) BP Exploration(Alaska) bp BP Exploration(Alaska)Inc. Attn:Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage,Alaska 99519-6612 .A�,,-,ri'J N O V J 12O1 May 25, 2012 Mr. Jim Regg a, i — © 13 Alaska Oil and Gas Conservation Commission Z. Ip 17 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB Z-Pad Dear Mr. Regg, 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, Gerald Murphy, at 659-5102. Sincerely, Mehreen Vazir 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) Z-Pad Date:05/02/2012 Corrosion Initial top of Vol.of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD# API# cement pumped cement date inhibitor sealant date ft bbls ft na gal Z-01B 2081080 50029218300200 Z-02A 1960430 50029218140100 Z-03 1971310 50029227870000 Z-04A 2042300 50029219900100 Z-05 1900780 50029220560000 Z-06 1880320 50029217980000 Z-07A 1931100 50029220460100 Z-08A 1931280 50029217870100 Z-09A 2081410 50029219670100 Z-10 1891160 50029219860000 Z-11A 2050310 50029220530100 Z-12 1891020 50029219770000 2-13A 2042030 50029220690100 2-14B 2060990 50029218440200 Z-15 1880880 50029218490000 Z-16 1920120 50029222450000 Z-17 1891390 50029220010000 118 1890960 50029219710000 2-19A 2061050 50029222510100 Z-20 1881000 50029218590000 2-21A 2001010 50029219380100 Z-22B 1960350 50029220370200 2-23B 2041080 50029219500200 Z-24 1890180 50029219170000 Z-25 1881590 50029219020000 2-26A 2060790 50029219450100 Z-27 1900310 50029220220000 Z-28 1881270 50029218790000 Z-29 1890650 50029219540000 Z-30A 2032190 50029220130100 Z-31 1881120 50029218710000 Z-32BL1 1970350 50029219246000 Z-33A 1890050 50029218950100 Z-35 1980930 50029228840000 Z-38 1980600 50029228730000 Z-39A 2042240 50029229950100 Z-40 2111730 50029234620000 1.3 NA 1.3 NA 15.3 4/7/2012 2-46A 2052030 50029232800100 Z-50 2120010 50029234630000 1.3 NA 1.3 NA 13.6 5/2/2012 Z-65 2110910 50029234510000 1.4 NA 1.4 NA 12.8 4/7/2012 Z-67 2110130 50029234410000 2.8 NA 2.8 NA 34.0 4/8/2012 Z-100 2031710 50029231820000 1101 2001620 50029229780000 1102 2070500 50029233530000 Z-103 2042290 50029232350000 Z-108 2052010 50029232920000 1112 2071720 50029233800000 Z-113 2110840 50029234500000 1.8 NA 1.8 NA 12.8 4/7/2012 Z-116 2111240 50029234550000 3.0 NA 3.0 NA 22.1 4/8/2012 IP [?"" 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U m m m � N N Q N N m M a 0 ` ..0* —m G 33 0 .7( 1151E OS pZjfn Y 3 thQNNO O N N 04rN Y C c MI m - a A C9Ya � LL - = 0LLm « .. wo 0 3 �i U o m c a dO E rn Y ( m `.. 0 N 000 < Cc woof, a .= o mNuZ W p LLIWCOD c FaNaa J d N p CD Cl. CO d rn Saltmarsh, Arthur C (DOA) From: Barker, Elizabeth R (Wipro) [Elizabeth.Barker@bp.com] Sent: Thursday, August 25, 2011 4:16 PM To: Saltmarsh, Arthur C (DOA) Cc: Hubble, Terrie L; Barker, Elizabeth R (Wipro) Subject: Action: Please correct KB on Permit#211-013 (PBU Z-67) Art, The correct KB on permit 211-013 should be 88.90 ft. Thank you for your patience, Liz -AK- - Project Analyst-Wipro Technologies- BP Office:907.564.5674 1 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: 0 Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class: 20AAC 25.105 20AAC 25.110 0 Development 0 Exploratory 0 GINJ 0 WINJ ®WAG 0 WDSPL 0 Other No.of Completions One IN Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska)Inc. 7/23/2011 211-013 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 6/30/2011 50-029-23441-00-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 7/17/2011 (6. 4. PBU Z-67 4308'FSL,3806'FEL,SEC. 19,T11 N, R12E, UM"as staked" 8. KB(ft above MSL): .&r 15.Field/Pool(s): Top of Productive Horizon: 2406'FSL, 1230'FEL, SEC.24,T11 N, R11 E, UM GL(ft above MSL): 54.60 Prudhoe Bay Field/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool 1542'FSL,677'FEL,SEC.24,T11 N, R11 E, UM 11248' 8882' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 598871 y- 5959100 Zone- ASP4 11302' 8857' ADL 028262&028245 TPI: x- 596519 y- 5957167 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 597083 y- 5956311 Zone- ASP4 None 18.Directional Survey: ®Yes 0 No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1800'(Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD: GR, RES DEN/NEU t 6(.5 f i 0 0 23. qt.-Se•ZA.k CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE Top BOTTOM ToP BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# A-53 Surface 108' Surface 108' 42" 260 sx Arctic Set 9-5/8" 40# L-80 Surface 3324' Surface 3100' 12-1/4" 1289 sx DeeoCRETE:431 sx Class'G' 7" 26# L-80 Surface 9654' Surface 8580' 8-3/4" 468 sx LiteCRETE:199 sx Class'G' 4-1/2" 12.6# L-80Vam Top 9495' 11302' 8431' 8857' 6-1/8" 194 sx Class'G'w/Gasblok 24. Open to production or injection? ®Yes 0 No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/TVD) (MD+TVD of Top&Bottom;Perforation Size and Number): 2-7/8"gun diameter,6 SPF 4-1/2", 12.6#, 13Cr-80 Vam Top 9505' 9380'MD/ 8322'ND MD ND MD ND 10130'-10230' 8921'-8963' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 11060'-11150' 8964'-8928' DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED J COMP kt• 2200' Freeze protected with 61 bbls of diesel .4-Lti RECEIVED' ' ' -. 1i4 AUG 19 2011 _ 27. Asks Oil& 'Il`��� -1 I y,, 1. TEST Date First Production: FP "'10feth• 0 •pera Ion(Flowing,Gas Lift,etc.): Not on Production Aflctieiage N/A Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No Sidewall Core(s)Acquired? 0 Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 MC 250.071. None RBDMS AUG 19 2011 Aw Form 10-407 Revised 12/2009 CONTINUED ON REVERSEub it Original Only '29. GEOLOGIC MARKERS(List all formations and markers encountered): 30. F. ATION TESTS NAME MD ND Well Tested? 0 Yes ®No Permafrost Top 35' 35' If yes,list intervals and formations tested,briefly summarizing test results. Attach separate sheets to this form,if needed,and submit Permafrost Base 1910' 1872' detailed test information per 20 MC 25.071. See Attachment None Formation at Total Depth(Name): Ivishak Zone 4 11302' 8857' 31.List of Attachments: Summary of Daily Drilling Reports,Well Schematic Diagram,Post Well Work Summary,Surveys 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed: Elizabeth Barker j ,�, Title: Drilling Technologist i Date: ��/� „ � / PBU Z-67 211-013 Prepared By Name/Number: Elizabeth Barker, 564-4628 Well Number Permit No./Approval No. Drilling Engineer: Trevor Hyatt,564-4627 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item la: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 MC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 MC 25.071. Form 10-407 Revised 12/2009 Submit Original Only TREE= 4-1/16"CNV SAFETY NC WELL ANGLE>70°@ 10260' WELLHEAD= FMC Z-67 ACTUATOR= BAKER C KB.ELEV= 88.9' BF. ELEV= 54.6' I I KOP= 400' 2270' —4-1/2"HES X NIP, ID=3.813" Max Angle= 118°@ 11217' Datum MD= 10062' Datum TVD= 8800'SS 20"X 34"INSULATED CONDUCTOR, 108' GAS LIFT MANDRELS 91.5#,A-53, ID=19.124" 7 ST MD TVD DEV TYPE VLV LATCH PORT DATE 9-5/8"CSG,40#, L-80 BTC, ID=8.835" 3324' WI 4 3791 3478 36 KBG2 DCK BEK - 07/23/11 3 5688 5011 35 KBG2 DMY BK 0 07/23/11 2 7130 6188 30 KBG2 DMY BK 0 07/23/11 1 7994 7002 13 KBG2 DMY BK 0 07/23/11 Minimum ID = 3.725" @ 9492' ' ' 9355' —14-1/2"HES X NIP,ID=3.813" 4-1/2" HES XN NIPPLE x 9380' —17"X 4-1/2"HES TNT PKR, ID=3.856" 1 9420' —14-1/2"HES X NIP, ID=3.813" 9492' —14-1/2"HES XN NIP, ID=3.725" 9495' —7"X 5"BKR ZXP LTP, ID=4.250" TOP OF 4-1/2"LNR — 9495' 9505' H 4-1/2"WLEG, ID=4.100" 4-1/2"TBG, 12.6#,13CR-85 VAM TOP, 1 9504' , / / H ELMD TT NOT LOGGED .0152 bpf, ID=3.958" r 9511' —f7"X 5"BKR HMC HYD LNR HGR,ID=4.210" 9521' —15"X 4-1/2"XO, ID=3.900" 7"CSG,26#, L-80 VAM TOP HC, — 9654' L 0383 bpf, ID=6.276" • 10065' —14-1/2"MAKER PUP JOINT PERFORATION SUMMARY REF LOG: bi ANGLE AT TOP PERF:63°°@ 10130' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 10130- 10230 0 07/20/11 2-7/8" 6 11060- 11150 0 07/20/11 PBTD —I 11248' 4444 ••�•••4• 4-1/2"LNR, 12.6#, L-80 VAM TOP, H 11301' AAA*I .0152 bpf, ID=3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07/23/11 D-14 ORIGINAL COMPLETION WELL: Z-67 08/05/11 PJC DRLG DRAFT CORRECTIONS PERMIT No:r2110130 08/07/11 MJF/PJC FINAL DRLG CORRECTIONS API No: 50-029-23441-00 08/17/11 LB/PJC 7"CSG CORRECTION SEC 19,T11 N,R12E,972'FNL&1147'FWL BP Exploration(Alaska) WELL NAME: Z-67 29. Geologic Markers(all formations and markers) Name MD ND SV6 1103' 1097' Mid Eocene Unconformity 1685' 1657' SV5 1768' 1737' SV4 1891' 1854' Base of Permafrost 1910' 1872' SV3 2390' 2320' SV2 2598' 2505' SV1 2986' 2826' UGNU 3362' 3131' UGNU-M 4747' 4245' Schrader Bluff N 5059' 4498' Schrader Bluff 0 5276' 4674' Base Schrader Bluff 5696' 5018' THRZ 7537' 6560' TKLB 7822' 6834' Top Kuparuk C 7883' 6894' LCU 7932' 6942' Top Kuparuk B 7932' 6942' Top Kuparuk A 7961' 6970' TMLV 8026' 7033' TKNG 8280' 7281' TSGR/Top of Sag River 8655' 7637' TSHU/Top of Shublik 8688' 7668' TEIL 9816' 8725' Ivishak Zone 4 9866' 8765' Ivishak Zone 3 10235' 8965' Ivishak Zone 2 10486' 9014' Ivishak Zone 2 10840' 9014' Ivishak Zone 3 11057' 8965' Ivishak Zone 4 11057' 8965' Z-67 Well History (Post Rig - New) Date Summary 23-Jul-2011 Pull TWC and Set BPV for Doyon 14 Completion ✓ 28-Jul-2011 Verify barriers. Remove Dry Hole tree. Install new CIW 4 1/16 model FLS tree with Baker actuator. Torqued master to THA to 953 ft lbs. Installed tree cap and plug. (Tree still needs pressure tested after Norcon rigs up flowline and well house.) 7-Aug-2011 Verified barriers, Rigged up lubricator w/pulling tool and pressure tested low 350 psi 5 min (PASS) high 3500 psi 5 min (PASS). Pulled 4" CIW (H) BPV#150 @ 120 and verified barriers. Rigged up setting tool and 4" CIW (H)TWC#286 and pressure tested low 350 psi 5 min (PASS)high 3500 psi 5 min (PASS). Set 4" CIW (H)TWC#286 @ 120 verified barriers rigged down and rigged up pulling tool, stabbed on and pressure tested 4"CIW FLS Tree low 500 psi 5 min (PASS) high 5000 psi 5 min (PASS). Pulled 4" CIW (H)TWC#286 @120, rigged off and pressure tested tree cap to 3500 psi. Page 1 of 1 d a mmMr.- 00.0. Z OANO. 0.00,0 0 r NMmO, O' n ,V NW. ONM.VV O .- { OO8 .mCONMOM � • NNNM M( NNNNhN r .01. O080. 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C oo 3 m rn a a o -41, `y Ni g `m 0 0 o IL y cm ET o N o c E C 22 T _ o 0 4 1n 1n m 0 BP AMERICA Leak-Off Test Summary Well Name: Z-67 Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) (ppg) 07/05/11 LOT 3,324.00 3,101.00 8.80 940.00 2,357.60 14.64 Page 1 of 1 • North America -ALASKA - BP Page 1 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 6/29/2011 21:00 - 22:00 1.00 MOB P PRE SKID FLOOR IN PREPERATION FOR RIG MOVE 22:00 - 23:00 1.00 MOB P PRE MOVE OFF OF Z-38 23:00 - 23:30 0.50 MOB P PRE HANG ANNULAR IN CELLAR 23:30 - 00:00 0.50 MOB P PRE MOVE RIG TO Z-67 6/30/2011 00:00 - 01:00 1.00 MOB P PRE FINISH MOVING RIG TO Z-67 01:00 - 01:30 0.50 MOB P PRE SHIM AND LEVEL RIG,OVER CONDUCTOR 01:30 - 03:00 1.50 MOB P PRE SKID RIG FLOOR,SPOT ROCK WASHER, MWD SHACK,AND AGD TANK --RIG ACCEPTED 06/30/2011 @ 03:00-- _ _ 03:00 - 09:30 6.50 MOB P PRE SPOT GEO AND MUD LAB SHACKS,SPOT ENVIRO VAC,RIG UP FLOOR,STEAM, WATER,AIR AND HYDRAULICS,INSTALL 20" HYDRILL,DIVERTER LINE,HOOK UP KOOMY LINES TO ANNULAR, INSTALL RISER, FLOWLINE, FLOW LINE COVERS,MOUSE HOLES,R/U SUCTION LINES IN PITS, CONVEYOR,R/U BEAVERSLIDE 09:30 - 11:00 1.50 RIGU P PRE INSTALL ELEVATOR LINKS,4"ELEVATORS. P/U 15 JTS OF 4"HWDP F/PIPESHED AND RACK BACK IN DERRICK,C/O ELEVATORS AND P/U 2 JTS OF 5"DP AND JARS AND RACK IN DERRICK 11:00 - 12:00 1.00 RIGU P PRE MOB BHA 1 TO RIG FLOOR 12:00 - 13:00 1.00 RIGU P PRE M/U BHA 1 W/12.25 BIT 13:00 - 14:00 1.00 BOPSUR P PRE TEST BAG AND KNIFE VALVE,TOOK 21 SECONDS FOR BAG TO CLUE AOGCC INSPECTOR MATT HERRERA WAIVED WITNESS OF DIVERTER TEST 14:00 - 14:30 0.50 RIGU P PRE UNANNOUNCED H2S RIG EVAC DRILL,ALSO TESTED RIG ESD DURING DRILL HELD AAR AFTER DRILL 14:30 - 15:00 0.50 RIGU P PRE ADJUST DIVERTER LINE PLACEMENT 15:00 - 15:30 0.50 RIGU P PRE FILL SURFACE STACK,CHECK FOR LEAKS 15:30 - 18:00 2.50 DRILL P SURF DRILL SURF WITH 400GPM,380PSI,3ORPM, 1K TQ 18:00 - 18:30 0.50 DRILL P SURF POOH Fl 218'STAND BACK STDS OF 4"HWDP 18:30 - 19:00 0.50 DRILL P SURF M/U PONY COLLARS,AND STABILIZERS 19:00 - 20:00 1.00 DRILL P SURF PJSM W/GYRO R/U SHEAVE IN DERRICK AND P/U GYRO 20:00 - 00:00 4.00 DRILL P SURF RIH T/218'CONT T/DRILL FROM 218'TO 385' MD —. -RUN GYRO EVERY STD -PUW 65K,SOW 65K,ROT 65K -400 GPM,440 PSI ON,325 PSI OFF -40 RPM,TQ 2K ON,OK OFF -WOB 5K -MUD W 8.6 PPG IN AND OUT ART=3.80,AST=.33,ADT=4.13 Printed 8/17/2011 3:46:03PM rth America -ALASKA- BP Page 2 of 19 • Operation Summary Report Common Well Name:Z-67 AFE No Event Type:DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) I _ Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67©88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 7/1/2011 00:00 - 03:30 3.50 DRILL P SURF DIRECTIONALLY DRILL FROM 385'TO 535'MD -RUN GYRO EVERY STD -PUW 65K,SOW 65K, ROT 65K -400 GPM,440 PSI ON,325 PSI OFF 40 RPM,TQ 2K ON,OK OFF -WOB 5K -MUD W 8.6 PPG IN AND OUT 03:30 - 04:00 0.50 DRILL P SURF ATTEMPT TO POOH ON ELEVATORS -70K OVERPULL PUMP OUT FIRST 2 STANDS HWDP -250GPM,230 PSI POOH ON ELEVATORS TO SURFACE 04:00 - 06:30 2.50 DRILL P SURF INSPECT BIT DIAL DOWN MUD MOTOR BEND FROM 1.83 DEG TO 1.50 DEG PICK UP MWD TOOLS,ORIENT UBHO, RIH TI 453' 06:30 - 07:00 0.50 DRILL E P SURF TAG UP @ 453'.WASH DOWN TO 535' 07:00 - 12:00 5.00 DRILL P SURF DRILL AHEAD FROM 535'TO 897'MD , -PUW 87K,SOW 97K,ROT 85K -500 GPM,1,250 PSI ON,1,120 PSI OFF 40 RPM,TQ 3K ON,1K OFF WOB 30K MUD WT 9.0 PPG IN AND OUT ART 1.20,AST 1.99,ADT 3.19 12:00 - 23:00 11.00 DRILL P SURF DRILL AHEAD FROM 897'TO 1874'MD -PUW 103K,SOW 95K,ROT 98K -500 GPM,1,675 PSI ON,350 PSI OFF -40 RPM,TQ 5.5K ON,2.5K OFF, -WOB 30K MUD WT 9.3 PPG IN AND OUT ART 3.77,AST 3.94,ADT 7.71 23:00 - 00:00 1.00 DRILL P SURF CBU 3X GPF 500, PSI=1350,RPM=50 TQ=4K -INCREASED CUTTING OBSERVED ACROSS SHAKERS AT FIRST BOTTOMS UP -NO INCREASE SEEN AT SECOND BOTTOMS UP ADT FOR LAST 24 HRS: 10.90 7/2/2011 00:00 - 00:30 0.50 DRILL P SURF CBU GPM=500,PSI=1350,RPIW40,TQ=4K -NO INCREASE IN CUTTINGS AT THIRD BOTTOMS-UP 00:30 - 02:00 1.50 DRILL P SURF FLOW CHECK FOR 10 MIN NO FLOW,WATCH FOR SWABBING FIRST 5 STANDS,POOH SHORT TRIP FROM 1874'TO 309' CIRCULATE THROUGH TIGHT SPOT @ 690'GPM=300, PS450 02:00 - 03:00 1.00 DRILL P SURF FLOW CHECK WELL FOR 10 MIN RIH FROM 309'TO 1874' 03:00 - 12:00 9.00 DRILL P SURF DRILL AHEAD FROM 1874'TO 2672' -PUW 110K,SOW 100K,ROT 105K -550 GPM,1900 PSI ON,1750 PSI OFF -40 RPM,TQ 5.5K ON,3K OFF, -WOB 30K -AST=2.75,ART=2.02,ADT=4.77 MUD WT 9.3 PPG IN AND OUT Printed 8/17/2011 3:46:03PM rth America -ALASKA- BP Page 3 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 17:00 5.00 DRILL P SURF DRILL AHEAD FROM 2¢72'TO 3334'TD f� -PUW 123K,SOW 104K,ROT 112K -650 GPM,2880 PSI ON,2650 PSI OFF -80 RPM,TO 6K ON,4K OFF, WOB 30K -AST=.87,ART=3.03,ADT=3.9 MUD WT 9.3 PPG IN AND OUT 17:00 - 17:30 0.50 DRILL P SURF AT 3334'CIRC 100 BBLS GPM=650,PS�2660, RPM=80,TQ=4 FLOW CHECK WELL FOR TEN MINUTES, WELL STATIC 17:30 - 20:00 2.50 DRILL P SURF BACK REAM OUT OF HOLE FROM 3334'TO 1596' -GPM=650, PSI=2600, RPM=80,TQ=4 20:00 - 21:00 1.00 DRILL P SURF MONITOR WELL 10 MIN,NO FLOW -TIH FROM 1596'TO 3334' 21:00 - 22:30 1.50 DRILL P SURF CBU 3 TIMES' -GPM=650, PS2640,RPM=100,TQ=3K-4K -MUD WT 9.4PPG IN AND OUT -INCREASE IN CLAYS AT SHAKERS,CLEANED UP BY FIRST BOTTOMS UP -NO INCREASE IN CUTTINGS SEEN AT SECOND OR THIRD BOTTOMS UP P 22:30 - 00:00 1.50 DRILL P SURF MONITOR WELL TEN MINUTES,WELL STATIC -POOH FROM 3334'TO 1411 -WATCH FOR SWABBING ON FIRST 5 STANDS -ADT FOR LAST 24 HRS=8.67 7/3/2011 00:00 - 00:30 0.50 DRILL P SURF POOH FROM 1411'TO 760' 00:30 - 01:00 0.50 DRILL P SURF POOH FROM 760'TO 111"RACK BACK HWDP, JAR STAND,AND COLLARS 01:00 - 03:00 2.00 DRILL P SURF LAY DOWN REMAING BHA FROM 111'TO SURFACE BIT GRADE:1-1-WT-A-E-3-RG-TD 03:00 - 04:00 1.00 CASING P SURF CLEAN AND CLEAR RIG FLOOR,MOBILIZE BHA AND TOOLS OFF RIG FLOOR 04:00 - 07:00 3.00 CASING P SURF RIG UP TO RUN 9 5/8 SURFACE CASING, . MAKE DUMMY RUN WITH LANDING JOINT AND HANGER 07:00 - 12:00 5.00 CASING P SURF PJSM WITH ALL HANDS,RUN 9 5/8 40# CASING FROM SURFACE TO 2409' -PICK UP SHOE TRACK CHECK FLOATS,FILL ON FLY BREAK CIRCULATION EVERY TEN JOINTS 12:00 - 14:00 2.00 CASING P SURF RUNNING 95/8 SURFACE CASING FROM 2409' TO 3286'BREAK CIRCULATION EVERY TEN JOINTS 14:00 - 14:30 0.50 CASING P SURF MAKE UP HANGER AND LANDING JOINT, RIH FROM 3286'LAND CASING AT 3324' 14:30 - 16:30 2.00 CEMT P SURF CIRCULATE AND CONDITION FOR CEMENT JOB -RECIPROCATE CASING STRING 20' STROKES -STAGE PUMPS TO 8 BPM,260 PSI -CONDITION MUD FOR CEMENT JOB Printed 8/17/2011 3:46:03PM • rth America -ALASKA- BP Page 4 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) 16:30 - 20:00 3.50 CEMT P (ft) SURF CEMENT 9 5/8"SURFACE CASING WITH Olt RECIPROCATION AS FOLLOWS: irk 16:30 HOLD PRE-JOB SAFETY MEETING WITH RIG CREW,SCHLUMBERGER CEMENT CREW AND CH2M HILL TRUCK DRIVERS 16:30 BATCH MIX 10.0 PPG MUD PUSH II 16:30 PUMP 5 BBLS MUD PUSH II 16:32 TEST TRIPS TO 700 PSI-GOOD.TEST LINES TO 3,500 PSI-GOOD 16:55 PUMP 95 BBLS 10.0 PPG MUD PUSH II AT 6 BPM,125 PSI 16:55 START BATCH MIXING ASL LEAD CEMENT 16:56 DROP BOTTOM PLUG.POSITIVE INDICATION PLUG LEFT CEMENT HEAD 17:00 PUMP 427.0 BBL 11.0 PPG DEEP CRETE LEAD CMT @ 7 BPM -11.0 PPG DEEP CRETE LEAD -7 BPM,256 PSI TREATING PRESSURE 17:40 LAND CASING ON LANDING RING BEFORE LEAD CEMENT ROUNDS SHOE 17:42 BOTTOM PLUG LANDED ON FLOAT COLLAR.PRESSURE SPIKE TO 800 PSI OBSERVED BEFORE RETURNING TO TREATING PRESSURE 18:14 START BATCH MIXING 15.8 PPG G CEMENT 18:19 TAIL CEMENT TO WEIGHT 18:19 SWAP TO TAIL CEMENT PUMP 88.9 BBLS 15.8 PPG CLASS G TAIL CEMENT AWAY AT 5 BPM -15.8 PPG CLASS G NEAT -5 BPM,189 PSI TREATING PRESSURE 18:39 STOP PUMPING CEMENT 18:40 DROP TOP PLUG.POSITIVE INDICATION PLUG LEFT CEMENT HEAD 18:41 SLB CEMENTERS PUMP 10 BBLS TO CLEAN UP ON TOP OF PLUG 18:43 BEGIN DISPLACEMENT WITH RIG PUMP -DISPLACE WITH 9.4 PPG DRILLPLEX -PUMP 7 BPM,340 PSI 18:53 CEMENT CONFIRMED AT SURFACEan. 1300 STROKES -FLUID WEIGHT OUT 11.0PPG 19:21 SLOW PUMP RATE TO 2BPM,@ 2150 STROKES 650 PSI 19:30 BUMP PLUG @ 2346 STROKES WITH 1200 PSI -HOLD FOR 5 MINUTES 19:35 BLEED OFF PRESSURE AND CHECK FLOATS, FLOATS HOLDING HOOK UP LINES AND TEST 250 PSI LOW HOLD FOR 5 MINUTES,3500PS1 HIGH HOLD FOR 5 MINUTES,TEST GOOD CEMENT IN PLACE AT 19:30 HRS 106 BBLS"SIDEWALK"CEMENT RECOVERE AT SURFACE LEAD CEMENT REACHES 500 PSI COMPRESSIVE STRENGTH IN 23HRS 43 MIN Printed 8/17/2011 3:46:03PM Page 5 of is rth America -ALASKA- BP Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) TAIL CEMENT REACHES 1,000 PSI COMPRESSIVE T' NG H IN 18 HRS 10 MIN CEMENT PUMPED: -1275 SX OF 11.0 PPG DEEP CRETE LEAD AT 1.86 CUFT/SX -460 SX OF 15.8 PPG G-BLEND TAIL AT 1.16 _CUFT/SX 20:00 - 22:00 2.00 CEMT P SURF RIG15O N CEMENT LIN ND CEMENT HEAD FLUSH STACK BACK OUT LANDING JOINT AND LAY DOWN ON PIPE SKATE REMOVE ELEVATORS AND LONG BALES FLUSH OUT FLOWLINE 22:00 - 00:00 2.00 DIVRTR P SURF NIPPLE DOWN FLOWLINE,RISER,DIVERTER LINE,AND ANNULAR 7/4/2011 00:00 - 03:30 3.50 WHSUR P SURF N/U FMC 11"THROUGH BORE GEN 5 WELLHEAD -TEST TO 1000 PSI HOLD FOR 15 MIN.TEST PASSED 03:30 - 06:30 3.00 BOPSUR P SURF N/U TUBING SPOOL AND BOPS -INSTALL PITCHER NIPPLE,FLOWLINE,BLOW DOWN LINE,AND FILL UP LINE -MEASURE RKB'S,CENTER STACK 06:30 - 12:00 5.50 BOPSUR P SURF R/U TO TEST BOPS -TEST WITH 4"TEST JOINT -TEST ANNULAR 250 PSI LOW,3500 PSI HIGH -TEST BOPS 250 PSI LOW,4000 PSI HIGH nn -D2 WELL CONTROL DRILL,61 STROKES TO ju• liti FILL GAS BUSTER (y� TEST WITNESSED BY DOYON TOOLPUSHER BOBBY INGRAM AND BP WSL JOEY LEBLANC AOGCC REP.CHUCK SHEVE WAIVED WITNESS OF TEST @ 11:26 AM ON 07/03/2011 12:00 - 13:00 1.00 BOPSUR P SURF TEST BOPS WITH 4"TEST JOINT 250 PSI LOW 4000 PSI HIGH -GAS ALARMS TESTED -DERRICK INSPECTION 13:00 - 14:00 1.00 CEMT P SURF R/D TEST EQUIP, INSTALL WEAR RING,BLOW DOWN ALL LINES -INSTALL ELEVATOR LINKS AND ELEVATORS -PREPARE TO P/U DP 14:00 - 20:30 6.50 CEMT P SURF PJSM ON SINGLE IN 4"DP FROM SHED -P/U 117 JTS OF DP POOH AND RACK BACK IN DERRICK 20:30 - 22:00 1.50 CEMT P SURF RIG UP AND TEST 9 5/8"SURFACE CASING TO 250 PSI LOW FOR 5 MIN.3500 PSI HIGH FOR 30 MIN -4 BBLS TO REACH TEST PRESSURE -LOST 20 PSI FIRST 15 MIN,10 PSI SECOND 15 MIN -3.5 BBLS RECOVERED WHEN BLEEDING OFF TEST PRESSURE -TEST WITNESSED BY DOYON TOOLPUSHER HARRY GOCHENAUER AND BP WSL FRANK ROACH -WTL MIKE SCHULTZ APPROVED TEST @ 22:44 PM 07/04/2011 Printed 8/17/2011 3:46:03PM rth America-ALASKA- BP Page 6 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release: 7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum_:Z-67©88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 23:00 1.00 CEMT P SURF MOBILIZE BHA#3 COMPONENTS TO RIG FLOOR C/O ELEVATORS 23:00 - 00:00 1.00 CEMT P SURF PICK.UP BHA#3 AS FOLLOWS: -8-3/4"HYCALOG DTX619M-D2 PDC BIT W/6 13/32"NOZZLES -6-3/4"7/8 LOBE,5.0 STAGE MUD MOTOR W/ 1.50 DEGREE BEND -ARC6 -MWD SUITE -8-3/4"NON-MAG STABILIZER 7/5/2011 00:00 - 01:30 1.50 CEMT P SURF MAKE UP REMAINING COMPONENTS OF BHA #3: -NON-MAG DRILL COLLARS -8-3/4"NON-MAG STABILIZER -5"HWDP/JAR STAND -4-1/2"IF X 4"XT-39 CROSSOVER SUB -15JTS4"HWDP TOTAL BHA LENGTH:740.92' PICK UP FIRST JOINT 4"DRILLPIPE SHALLOW TEST MWD TOOLS -350 GPM,320 PSI 01:30 - 04:00 2.50 CEMT P SURF RIH ON 4"DRILLPIPE SINGLES FROM PIPE SHED FROM 741'TO 2,980'MD HELD D1 KICK WHILE TRIPPING DRILL 04:00 - 07:00 3.00 CEMT P SURF SLIP AND CUT DRILLING LINE -SLIP NEW DRILLING LINE FROM NEW SPOOL 07:00 - 08:00 1.00 CEMT P SURF CONTINUE TO RIH FROM 2,980'TO 3,140'MD PICK UP GHOST REAMER -GHOST REAMER 3,141'BEHIND BIT OBTAIN SLOW PUMP RATES WASH DOWN AND TAG FLOAT COLLAR AT 3,245'MD 08:00 - 09:30 1.50 CEMT P SURF DRILLQU..T_f:FMFNT PLUGS,FLOAT COLLAR. . .AND SHOETRACK_ FROM 3,245'TO 3,314",11/1D -10'ABOVE FLOAT SHOE -PUW 135K,SOW 95K, ROT 110K -410 GPM,1,610 PSI -40 RPM,TQ 5K ON,4K OFF 09:30 - 10:00 0.50 CEMT P SURF DISPLACE WELL FROM 9.5 PPG DRILLPLEX SURFACE MUD TO 8.8 PPG LSND FOR 8-3/4" INTERMEDIATE HOLE -ROTATE AND RECIPROCATE DRILLSTRING -505 GPM,1,200 PSI -40 RPM,TQ 4K OBTAIN SLOW PUMP RATES WITH NEW MUD PRIOR TO DRILLING OUT 10:00 - 10:30 0.50 CEMT P SURF DRILL OUT REMAINING SHOETRACK, RATHOLE AND 20'NEW HOLE FROM 3,314'TO 3,354'MD -PUW 135K,SOW 95K, ROT 110K -425 GPM,1,050 PSI -40 RPM,TQ 4K -WOB 10K ART 0.7,AST 0.0,ADT 0.7 Printed 8/17/2011 3:46:03PM rth America -ALASKA- BP Page 7 of 19 • Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:30 - 11:00 0.50 CEMT P SURF CIRCULATE BOTTOMS-UP -425 GPM,1,050 PSI -40 RPM,TQ 4K OBTAIN ECD BASELINE 11:00 - 12:30 1.50 CEMT P SURF PULL INTO 9-5/8"SHOE AND RACK BACK ONE STAND RIG UP AND PERFORM LEAKOFF TEST -3,324'MD,3,101'TVD -8.8 PPG LSND -PRESSURE DEVIATION AT 940 PSI 14_63PPG.EMW_LO.T..ACHIEVED -TEST WITNESSED BY DOYON TOOLPUSHER BOBBY INGRAM AND BP WSL JOEY LEBLANC SENT TO BP ODE WILSON QUINTA FOR AUTHORIZATION TO PROCEED -AUTHORIZATION RECEIVED BY EMAIL AT 12:30 12:30 - 13:30 1.00 DRILL N RREP 3,266.00 INTI REPAIR CHOKE MANIFOLD VALVE#4 -VALVE HANDLE STEM STRIPPED.COULD NOT COUNT NUMBER OF TURNS TO FUNCTION TEST TO 250 PSI LOW,4,000 PSI HIGH FOR 5 MINUTES EACH 13:30 - 00:00 10.50_ DRILL P INTI RIH FROM 3,266'TO 3,354'MD DIRECTIONALLY DRILL FROM 3,354'TO 4,939'_ -`MD -PUW 146K,SOW 111K,ROT 125K -600 GPM,2,260 PSI ON,2,030 PSI OFF -80 RPM,TQ 6.5K ON,5K OFF -WOB 10K -MUD WT 8.9 PPG IN,8.9 PPG OUT -CALCULATED ECD 9.29 PPG,ACTUAL ECD 9.48 PPG ART 3.99,AST 1.00,ADT 4.99 ADT FOR LAST 24 HRS:5.06 7/6/2011 00:00 - 12:00 12.00 DRILL P INTI DIRECTIONALLY DRILL FROM 4,939'TO 6,521' MD -PUW 168K,SOW 120K,ROT 138K -600 GPM,3,140 PSI ON,2,740 PSI OFF -110 RPM,TQ 10K ON,8K OFF -WOB 15K -MUD WT 9.3 PPG IN,9.3 PPG OUT -CALCULATED ECD 10.05 PPG,ACTUAL ECD 10.96 PPG ART 5.29,AST 1.27,ADT 6.56 Printed 8/17/2011 3:46:03PM rth America -ALASKA- BP Page 8 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P INTI DIRECTIONALLY DRILL FROM 6,521'TO 7,543' MD -PUW 175K,SOW 133K, ROT 146K -550 GPM,3,820 PSI ON,3,780 PSI OFF -80 RPM,TQ 7K ON,5K OFF • -WOB 8K -MUD TO WT FOR HRZ/KINGAK DRILLING BY 7,400'MD -MUD WT 10.2 PPG IN,10.2 PPG OUT -CALCULATED ECD 11.03 PPG,ACTUAL ECD 11.65 PPG HELD D2 KICK WHILE DRILLING DRILL ART 4.60,AST 3.19,ADT 7.79 ADT FOR LAST 24 HRS: 14.36 -CENTRIFUGE DOWN AT 20:00 7/7/2011 00:00 - 00:30 0.50 DRILL P INTI DIRECTIONALLY DRILL FROM 7,543'TO 7,636' MD -PUW 170K,SOW 130K, ROT 148K -560 GPM,3,850 PSI ON,3,780 PSI OFF -60 RPM,TQ 10K ON,6K OFF -WOB 10K MUD WT 10.3 PPG IN,10.3 PPG OUT -CALCULATED ECD 11.03 PPG,ACTUAL ECD 11.65 PPG 00:30 - 02:30 2.00 DRILL N RREP 7,636.00 INTI CIRCULATE AT 7,636'WHILE REPAIRING CENTRIFUGE -ROTATE AND RECIPROCATE FULL STAND -560 GPM,3,940 PSI -80 RPM,TQ 7K -MUD WT 10.3 PPG MUD WT IN AND OUT 02:30 - 05:30 3.00 DRILL N RREP 7,636.00 INTI BACKREAM FROM 7,636'TO 6,243'MD WHILE WORKING ON CENTRIFUGE -560 GPM,3,990 PSI -80 RPM,TQ 7K -BACK DOWN RATE DUE TO APPROACHING MAX STANDPIPE PRESSURE -530 GPM,3,800 PSI -SIGNIFICANT INCREASE IN CUTTINGS -CENTRIFUGE BACK ONLINE AT 05:30 05:30 - 06:30 1.00 DRILL N RREP 7,636.00 INTI RIH FROM 6,243'TO 7,636'MD 06:30 - 12:00 5.50 DRILL P INTI DIRECTIONALLY DRILL FROM 7,543'TO 7,922' MD -PUW 184K,SOW 138K,ROT 160K -540 GPM,3,710 PSI ON,3,580 PSI OFF -60 RPM,TQ 10K ON,7K OFF -WOB 15K -MUD WT 10.2 PPG IN,10.2 PPG OUT -CALCULATED ECD 11.05 PPG,TOOL ECD 10.88 PPG ART 1.99,AST 1.87,ADT 3.86 Printed 8/17/2011 3:46:03PM rth America ALASKA- BP Page 9 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P INTI DIRECTIONALLY DRILL FROM 7,922'TO 8,195' MD -PUW 187K,SOW 142K,ROT 161K -550 GPM,3,570 PSI ON,3,330 PSI OFF -60 RPM,TQ 8K ON,5K OFF -WOB 15K -MUD WT 10.3 PPG IN,10.3 PPG OUT -CALCULATED ECD 10.85 PPG,TOOL ECD 10.94 PPG ART 0.71,AST 6.04,ADT 6.75 ADT FOR LAST 24 HRS: 10.61 7/8/2011 00:00 - 12:00 12.00 DRILL P INTI DIRECTIONALLY DRILL FROM 8,195'TO 8,659' MD -PUW 200K,SOW 147K,ROT 167K -550 GPM,3,800 PSI ON,3,570 PSI OFF -60 RPM,TQ 8K ON,7K OFF -WOB 15K -MUD WT 10.2 PPG IN,10.2 PPG OUT -CALCULATED ECD 10.94 PPG,TOOL ECD 11.08 PPG ART 1.21,AST 4.77,ADT 5.98 SPR @ 03:00, DEPTH 8,285'MD,7,284'TVD, MW 10.2 PPG #1 20 SPM:410 PSI,30 SPM:520 PSI #2 20 SPM:420 PSI,30 SPM,520 PSI 12:00 - 00:00 12.00 DRILL P INTI DIRECTIONALLY DRILL FROM 8,659'TO 9,339' MD -PUW 240K,SOW 145K,ROT 176K -530 GPM,3,860 PSI ON,3,590 PSI OFF -60 RPM,TQ 10K ON,7K OFF -WOB 15K -MUD WT 10.3 PPG IN,10.3 PPG OUT -CALCULATED ECD 11.04 PPG,TOOL ECD 11.13 PPG ART 3.17,AST 4.05,ADT 7.22 ADT FOR LAST 24 HRS: SPR @ 15:00, DEPTH 8,845'MD,7,796'TVD, MW 10.2 PPG #1 30 SPM:530 PSI,40 SPM:640 PSI #2 30 SPM:520 PSI,40 SPM:630 PSI SPR @ 22:30, DEPTH 9,313'MD,8,259'TVD, MW 10.3 PPG #1 20 SPM:400 PSI,30 SPM:510 PSI #2 20 SPM:410 PSI,30 SPM:500 PSI 7/9/2011 00:00 - 05:30 5.50 DRILL P INTI DIRECTIONALLY DRILL FROM 9,339'TO 9,635' MD -PUW 235K,SOW 142K, ROT 175K -505 GPM,3,610 PSI ON,3,500 PSI OFF -60 RPM,TQ 11K ON,9K OFF -WOB 10K -MUD WT 10.3 PPG IN,10.3 PPG OUT SPR @ 00:30, DEPTH 9,401'MD,8,342'TVD, MW 10.3 PPG #1 20 SPM:450 PSI,30 SPM:550 PSI #2 20 SPM:450 PSI,30 SPM,550 PSI Printed 8/17/2011 3:46:03PM rth America -ALASKA- BP Page 10 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:30 - 06:30 1.00 DRILL P INTI CIRCULATE BOTTOMS-UP TO RECOVER CUTTINGS SAMPLES PER RIG GEOLOGIST -ROTATE AND RECIPROCATE DRILLSTRING -510 GPM,3,510 PSI -100 RPM,TQ 10K -PUW 235K,SOW 142K 06:30 - 07:00 0.50 DRILL P INTI CONTROL DRILL FROM 9,635'TO 9,655'MD -PUW 235K,SOW 142K,ROT 175K -505 GPM,3,620 PSI ON,3,500 PSI OFF -80 RPM,TQ 9K ON,9K OFF -WOB 10K -MUD WT 10.3 PPG IN,10.3 PPG OUT 07:00 - 08:00 1.00 DRILL P INTI CIRCULATE BOTTOMS-UP TO RECOVER CUTTINGS SAMPLES PER RIG GEOLOGIST -ROTATE AND RECIPROCATE DRILLSTRING -510 GPM,3,520 PSI -100 RPM,TQ 10K -PUW 235K,SOW 142K 08:00 - 09:00 1.00 DRILL P INTI CONTROL DRILL FROM 9,655'TO 9,660'MD -PUW 235K,SOW 142K, ROT 175K -505 GPM,3,610 PSI ON,3,500 PSI OFF -80 RPM,TQ 10K ON,9K OFF -WOB 10K -MUD WT 10.3 PPG IN,10.3PPGOUT CIRCULATE BOTTOMS-UP TO RECOVER CUTTINGS SAMPLES PER RIG GEOLOGIST -ROTATE AND RECIPROCATE DRILLSTRING -510 GPM,3,610 PSI -100 RPM,TQ 10K -PUW 235K,SOW 142K 09:00 - 09:30 0.50 DRILL P INTI CONTROL DRILL FROM 9,660'TO 9,662'MD -PUW 235K,SOW 142K,ROT 175K -505 GPM,3,610 PSI ON,3,500 PSI OFF 80 RPM,TQ 10K ON,9K OFF -WOB 10K -MUD WT 10.3 PPG IN,10.3 PPG OUT TD CALLED BY RIG GEOLOGIST AT 9,662'MD_, SPR @ 09:30, DEPTH 9,662'MD,8,592'TVD, MW 10.3 PPG #1 20 SPM:370 PSI,30 SPM:460 PSI #2 20 SPM:360 PSI,30 SPM,460 PSI 09:30 - 13:00 3.50 DRILL P INTI FLOW CHECK WELL FOR 10 MINUTES -NO FLOW POOH ON ELEVATORS FROM 9,662'TO 6,335' MD -GHOST REAMER INSIDE 9-5/8"CASING SHOE 13:00 - 15:30 2.50 DRILL P INTI FLOW CHECK WELL FOR 10 MINUTES -NO FLOW RIH FROM 6,335 TO 9,592'MD -TIGHT SPOT OBSERVED AT 9,050'MD WASH DOWN TO TD AT 9,662'MD -200 GPM,1,280 PSI -30 RPM,TQ 3K -NO FILL OBSERVED WHEN WASHING TO TD Printed 8/17/2011 3:46:03PM • rth America-ALASKA-BP Page 11 of 19 • Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release: 7/23/2011 Rig Contractor DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:30 - 20:00 4.50 DRILL P INTI PUMP SWEEP CIRCULATE 3 BOTTOMS-UP AND CONDITION MUD FOR TRIP OUT -PUW 240K,SOW 148K,ROT 184K -535 GPM,3,570 PSI -100 RPM,TQ 11K -NO ADDITIONAL CUTTING OBSERVED WHEN SWEEP RETURNED TO SURFACE -FINAL MUD WT IN AND OUT 10.3 PPG 20:00 - 20:30 0.50 DRILL P INTI FLOW CHECK WELL -NO FLOW POOH FROM 9,662'TO 8,661'MD 20:30 - 21:00 0.50 DRILL P INTI PUMP DRY JOB BLOW DOWN TOP DRIVE 21:00 - 00:00 3.00 DRILL P INTI POOH FROM 8,661'TO 3,540'MD HELD D1 KICK WHILE TRIPPING DRILL 7/10/2011 00:00 - 02:00 2.00 DRILL P INTI POOH FROM 3,540'TO 834'MD 10 MINUTE FLOW CHECK AT LAST STAND BEFORE BHA -NO FLOW 02:00 - 04:30 2.50 DRILL P INTI RACK BACK 5 STANDS 4"HWDP LAY DOWN BHA#3 COMPONENTS AS FOLLOWS: -4-1/2"IF PIN X 4"XT-39 BOX CROSSOVER -5"HWDP JT -WELL COMMANDER CIRC SUB -HYDRA JARS -5"HWDP JOINT -SAVER SUB -6-3/4"NON-MAG DRILL COLLAR -8-3/4"NON-MAG STABILIZER(IN GAUGE) -2 6-3/4"NON-MAG DRILL COLLARS -8-3/4"NON-MAG STABILIZER -MWD SUITE -ARC6 MWD TOOL -6-3/4"7/8 LOBE,5.0 STAGE MUD MOTOR WITH 1.50 DEGREE BEND -8-3/4"HYCALOG DTX619M-D2 PDC BIT WITH 6 13/32"JETS BIT GRADE: 1-2-CT-A-X-I-WT-TD 04:30 - 07:00 2.50 CASING P INTI CLEAN AND CLEAR RIG FLOOR OF BHA COMPONENTS PULL WEAR RING SET TEST PLUG CLOSE BLIND/SHEAR RAMS AND CHANGE OUT UPPER RAMS -REMOVED 3-1/2"X 6"VBR AND INSTALLED 7"FIXED 07:00 - 08:30 1._50 BOPSUR P INTI OPEN BLIND/SHEAR RAMS INSTALL 7"TEST JOINT AND TEST 7"RAMS TO 250 PSI LOW,4,000 PSI HIGH -5 MINUTES EACH TEST RIG DOWN TEST EQUIPMENT AND LAY DOWN 7"TEST JOINT Printed 8/17/2011 3:46:03PM rth America-ALASKA- BP Page 12 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release: 7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:30 - 09:00 0.50 WHSUR P INTI PICK UP LANDING JOINT WITH HANGER/HANGER JOINT INSTALLED PERFORM DUMMY RUN WITH HANGER -MARK LANDING JOINT AT RIG FLOOR FOR CONFIRMATION HANGER IS LANDED IN PROFILE 09:00 - 13:00 4.00 CASING P INTI MOBILIZE CASING RUNNING EQUIPMENT TO RIG FLOOR RIG UP TO RUN 7"CASING 13:00 - 14:30 1.50 CASING P INTI HOLD PJSM WITH RIG CREW AND DOYON CASING HAND MAKE UP SHOETRACK ASSEMBLY -BAKERLOK BTC-M CONNECTIONS -MAKE UP BTC-M CONNECTIONS TO MARK FILL CASING AND CHECK FLOATS -FLOATS HOLDING 14:30 - 21:00 6.50 CASING P INTI RUN 7",26#, L-80,VAM TOP HC CASING FROM 165'TO 3,324'MD -TORQUE TURN ALL CONNECTIONS -FILL PIPE EVERY JOINT -BREAK CIRCULATION EVERY 10 JOINTS -RECORD PUW AND SOW EVERY 10 JOINTS HELD D1 KICK WHILE TRIPPING DRILL -HELD AAR AFTER DRILL 21:00 - 22:00 1.00 CASING P INTI CIRCULATE SURFACE-TO-SURFACE BEFORE EXITING 9-5/8"CASING SHOE -STAGE UP PUMPS TO 7 BPM,570 PSI FLOW CHECK WELL AFTER CIRCULATION -NO FLOW 22:00 - 00:00 2.00 CASING P INTI RUN 7",26#, L-80,VAM TOP HC CASING FROM 3,324'TO 4,145'MD -TORQUE TURN ALL CONNECTIONS -FILL PIPE EVERY JOINT -BREAK CIRCULATION EVERY 10 JOINTS -RECORD PUW AND SOW EVERY 10 JOINTS 7/11/2011 00:00 - 10:30 10.50 CASING P INTI RUN 7",26#, L-80,VAM TOP HC CASING FROM 4,145'TO 9,654'MD -TORQUE TURN ALL CONNECTIONS -FILL PIPE EVERY JOINT -BREAK CIRCULATION EVERY 10 JOINTS -RECORD PUW AND SOW EVERY 10 JOINTS -CIRCULATE LAST 8 JOINTS DOWN PRIOR TO HRZ FOR BOTTOMS-UP -FILL PIPE ONLY FROM HRZ TO TD -PICK UP LANDING JOINT WITH HANGER ATTATCHED -LAND HANGER IN WELLHEAD PROFILE FINAL PICKUP/SLACKOFF WEIGHTS -PUW 325K;SOW 175K 10:30 - 11:00 0.50 CASING P INTI LAY DOWN POWER TONGS RIG DOWN SCAFFOLDING AND FRANKS TOOL RIG UP CEMENT HEAD TO LANDING JOINT 11:00 - 13:00 2.00 CASING P INTI CIRCULATE AND CONDITION HOLE FOR CEMENT JOB -FINAL CIRCULATING PARAMETERS 6 BPM, 760 PSI Printed 8/17/2011 3:46:03PM rth America -ALASKA- BP Page 13 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) 8'11.1` Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 7" ;u1' Csc 13:00 - 16:30 3.50 CEMT P INTI CEMENTS 5/8"SURFACE CASING WITH RECIPROCATION AS FOLLOWS: 12:10 BATCH MIX 10.5 PPG MUD PUSH II 13:10 HOLD PRE-JOB SAFETY MEETING WITH CVS RIG CREW,SCHLUMBERGER CEMENT CREW l t. AND CH2M HILL TRUCK DRIVERS Nr 13:25 PUMP 5 BBLS MUD PUSH II 13:28 TEST TRIPS TO 700 PSI-GOOD.TEST LINES TO 4,200 PSI-GOOD 13:35 PUMP 95 BBLS 10.5 PPG MUD PUSH II AT 4 BPM,590 PSI 13:43 START BATCH MIXING LITECRETE LEAD CEMENT 13:46 DROP BOTTOM PLUG.POSITIVE INDICATION PLUG LEFT CEMENT HEAD 13:46 PUMP_ 155.0 BBL 11.0 PPG LITECRETE LEAD CMT @ 5 BPM -11.0 PPG LITECRETE LEAD -3.7 BPM,509 PSI TREATING PRESSURE -INCREASED TO 5.2 BPM,598 PSI TREATING PRESSURE 14:18 START BATCH MIXING 15.8 PPG G CEMENT 14:24 TAIL CEMENT TO WEIGHT 14:25 SWAP TO TAIL CEMENT PUMP 41.2 BBLS_ 15.8 PPG CLASS G TAIL CEMENT AWAY AT 4 BPM -15.8PPG CLASS GNEAT -3.6 BPM,254 PSI TREATING PRESSURE 14:37 STOP PUMPING CEMENT 14:38 DROP TOP PLUG.POSITIVE INDICATION PLUG LEFT CEMENT HEAD 14:38 SLB CEMENTERS PUMP 10 BBLS TO CLEAN UP ON TOP OF PLUG 14:40 BEGIN DISPLACEMENT WITH RIG PUMP -DISPLACE WITH 10.4 PPG LSND -PUMP 7 BPM,480 PSI -INDICATIONS OF PACKING OFF 2,000 STROKES INTO DISPLACEMENT -PACKED OFF 2,200 STROKES INTO DISPLACEMENT.MODULATE PUMPS IN ATTEMPT TO REGAIN CIRCULATION.WORK CASING 2-3'WHILE MODULATING PUMP RATE AND REGAIN CIRCULATION 16:28 SLOW PUMP RATE TO 3BPM,@ 2150 STROKES 650 PSI 16_36 BUMP PLUG_@3 540 STROKES WITH 1,900 PSI -HOLD FOR 5 MINUTES 16:42 BLEED OFF PRESSURE AND CHECK FLOATS, FLOATS HOLDING CEMENT IN PLACE AT 16:36 FIRS 8 BBLS LOST DURING CEMENT JOB LEAD CEMENT REACHES 500 PSI COMPRESSIVE STRENGTH IN 17 HRS 26 MIN TAIL CEMENT REACHES 1,000 PSI COMPRESSIVE STRENGTH IN 7 HRS 40 MIN Printed 8/17/2011 3:46:03PM )rth America -ALASKA- BP Page 14 of 19 • Operation Summary Report Common Well Name:Z-67 ;AFE No 1 Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: 1X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release: 7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) CEMENT PUMPED: -468 SX OF 11.0 PPG LITECRETE LEAD AT 1.86 CUFT/SX -199 SX OF 15.8 PPG G-BLEND TAIL AT 1.16 CUFT/SX EST.TOC 2550'/ USIT WILL BE RUN LATER ON IN OPERATIONS. 16:30 - 18:00 1.50 CASING P INTI HOOK UP LINES AND TEST 7",26#,L-80 VAM TOP,HC CASING -250 PSI LOW FOR 5 MINUTES -4,000PSI HIGH FOR 30 MINUTES -REACHED 4160 IN 5.5 BBLS -GAINED 20 PSI IN FIRST 15 MINUTES -GAINED 30 PSI IN SECOND 15 MINUTES -BLED PRESSURE DOWN 18:30 - 19:00 0.50 CASING P INTI RIG DOWN CEMENT HEAD,CEMENT LINE AND ELEVATORS LAY DOWN LANDING JOINT 19:00 - 22:00 3.00 WHSUR '` P INTI CLEAN BOP STACK AND WELLHEAD I 1 'INSTALL 7"MANDREL PACKOFF THROUGH BOP STACK RILDS AND TEST VOID -250 PSI LOW FOR 5 MINUTES -5,000 PSI HIGH FOR 30 MINUTES RIG DOWN TEST EQUIPMENT 22:00 - 23:00 1.00 CASING P INTI LAY DOWN LONG BALES CLEAN AND CLEAR RIG FLOOR OF REMAINING CASING AND CEMENTING TOOLS 23:00 - 00:00 1.00 CASING P - INTI CHANGE OUT SAVER SUB ON TOP DRIVE SIM-OPS:RIG UP TO INJECT DOWN 9-5/8"X 7" OUTER ANNULUS 7/12/2011 00:00 - 00:30 0.50 WHSUR P INTI ESTABLISH INJECTION DOWN 9-5/8"X 7" OUTER ANNULUS -PUMP 10.7 PPG LSND -1 BPM PUMP RATE -PRESSURE BROKE OVER AT 1,120 PSI.8, BBLS INTO INJECTION -PUMPED ADDITIONAL 5 BBLS -INJECTION PRESSURE STABILIZED AT 930 PSI SIM-OPS:CONTINUE CHANGING OUT SAVER SUB ON TOP DRIVE 00:30 - 02:30 2.00 CASING P INTI FINISH CHANGING OUT SAVER SUB ON TOP DRIVE HOURLY INJECTIONS DOWN 9-5/8"X 7" OUTER ANNULUS -@ 01:15:3 BBLS AT 860 PSI -@ 02:15:3 BBLS AT 780 PSI Printed 8/17/2011 3:46.03PM rth America -ALASKA- BP Page 15 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 - 03:30 1.00 BOPSUR P INTI CLOSE BLIND/SHEAR RAMS CHANGE UPPER RAMS FROM T_EXED TO . .3:1/2'.,'X 6"_VARIABLE B9_RE RAMS OPEN BLIND/SHEAR RAMS PICK UP 4"TEST JOINT MAKE UP UPPER TEST PLUG TO TEST JOINT AND INSTALL IN WELLHEAD HOURLY INJECTION DOWN 9-5/8"X 7"OUTER ANNULUS -@ 03:15:3 BBLS AT 800 PSI 03:30 - 05:30 2.00 BOPSUR P INTI RIG UP TEST EQUIPMENT TEST 3-1/2"X 6"VARIABLE BORE RAMS WITH 4"TEST JOINT -250 PSI LOW,4,000 PSI HIGH -5 MINUTES EACH TEST RIG DOWN TEST EQUIPMENT HOURLY INJECTION DOWN 9-5/8"X 7"OUTER ANNULUS -@ 04:15:3 BBLS AT 780 PSI 05:30 - 06:00 0.50 CASING "`P INTI SERVICE TOP DRIVE CROWN AND BLOCKS HOURLY INJECTION DOWN 9-5/8"X 7"OUTER ANNULUS -@ 05:15:3 BBLS AT 740 PSI 06:00 - 07:00 1.00 CASING P INTI PICK UP PRODUCTION BHA#1 TOOLS UP THE BEAVER SLIDE. SIM OPS: INJECT 103 BBLS OF 10.7 PPG MUD FOLLOWED BY 64 BBLS OF 90 DEGREE DEAD CRUDE INTO THE 9-5/8"X 7"ANNULUS AT 2 BPM WITH 1280 PSI. 07:00 - 08:00 1.00 CASING P INTI RUN IN THE HOLE WITH 5 STANDS OF HWDP AND LAY IT DOWN TO THE PIPE SHED. 08:00 - 11:00 3.00 CASING P INTI FLOW CHECK THE WELL FOR 10 MINUTES. STATIC. PICK UP PRODUCTION BHA#1 AS FOLLOWS: -6.125"HUGHES EP7258 INSERT BIT WITH 3 X 13 NOZZLES SERIAL#5186491 -AD MOTOR WITH 1.5 DEGREE BEND -6"NON-MAG STAB -(2)NON-MAG FLEX PONY COLLAR -IMPULSE MWD -ADN VISION 475 -(3)NON-MAG FLEX DRILL COLLARS -CROSS OVER -4.75"JARS 11:00 - 12:00 1.00 CASING P INTI SINGLE IN THE HOLE FROM 234'TO 697'WITH 4"DRILL PIPE. -MOSES'CREW HELD D1 KICK DRILL,CRT 140 SEC. 12:00 - 14:00 2.00 CASING P INTI SINGLE IN THE HOLE FROM 697'TO 1157' WITH 4"DRILL PIPE. SHALLOW PULSE TEST THE MWD 225 GPM WITH 1120 PSI. CONTINUE TO SINGLE IN THE HOLE FROM 1157'TO 2280'WITH 4"DRILL PIPE. 14:00 - 16:00 2.00 CASING P INTI RUN IN THE HOLE WITH 4"DRILL PIPE FROM THE DERRICK FROM 2280'TO 4426'. FILLING THE PIPE EVERY 20 STANDS. Printed 8/17/2011 3:46:03PM )rth America -ALASKA BP Page 16 of 19 • Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 17:00 1.00 CASING P INTI SAFETY STAND DOWN WITH BP TOWN MANAGEMENT. 17:00 - 20:30 3.50 CASING P INT1 CONTINUE TO RUN IN THE HOLE FROM 4426' TO 9355'WITH 4"DRILL PIPE FROM THE DERRICK. FILLING THE PIPE EVERY 20 STANDS. 20:30 - 22:30 2.00 CASING P INTI PJSM. SLIP AND CUT DRILLING LINE, SERVICE THE TOP DRIVE,AND CALIBRATE THE BLOCK HEIGHT. fff -JENNINGS'CREW HELD A SPILL DRILL,CRT 112 SEC. 22:30 - 23:00 0.50 CASING P INTI RUN IN THE HOLE FROM 9355'TO 9542'. WASH DOWN THE LAST STAND AT 215 GPM WITH 1880 PSI. 23:00 - 00:00 1.00 CASING P INTI ESTABLISH PARAMETERS OF UP WT.210K/ DOWN WT. 125K/ROT WT. 160K AT 40 RPM WITH 8K TQ PUMPING AT 225 GPM WITH 1970 PSI. WASH DOWN FROM 9542'TAGGING UP ON THE FLOAT COLLAR AT 9568'. DRILL AHEAD TO 9635'PUMPING AT 225 GPM WITH 1980 PSI AND 8K TQ ROTATING AT 40K WITH 5-10K WOB. 7/13/2011 00:00 - 00:30 0.50 CASING P INTI CONTINUE TO DRILL UP THE SHOE TRACK FROM 9635'TO 9640'. UP WT.210 K/DOWN WT. 125K/ROT WT. 160 K. PUMPING AT 225 GPM WTIH 1980 PSI AT 40 RPM WITH 10K TQ AND 10K WOB. 00:30 - 03:00 2.50 CASING P INTI DISPLACE THE WELL FROM 10.3 PPG LSND TO 9.3 PPG FLO-PRO AT 225 GPM WITH 1540 PSI ROTATING AT 40 RPM. 03:00 - 04:00 1.00 CASING P INTI .DRILLLPZEHHE..ELQAT SHDEAN.D2Q9FNEW HO!F.IQ_9.682'._ UP WT.210 K/DOWN WT. 125K PUMPING AT 225 GPM WITH 1690 PSI WHILE ROTATING AT 40 RPM WITH 5K TQ AND 15K WOB. 04:00 - 05:00 1.00 CASING P INTI CIRCULATE TO GET THE MUD RHEOLOGY CORRECT BEFORE PERFORMING FIT.UP AT 225 GPM WITH 1515 PSI AT 40 RPM WITH UP WT.210 K/DOWN WT. 125K. -MUD WT IN AND OUT 9.3 PPG. 05:00 - 08:00 3.00 CASING P INTI _FIG UP AND PERFORM FIT. MW=93 PPG/ 8580'TVD/640 PSI AT SURFACE/10.7 PPG EMW PUMPED AND RETURNED 1 BBL OF FLUID. -MOSES'CREW HELD A TABLE TOP H2S DRILL. 08:00 - 12:00 4.00 DRILL P PROD1 DRILL AHEAD FROM 9682'TO 9758'. UP WT. 195K/DOWN WT. 145K/ROT WT. 165K. 1920 PSI ON/1820 PSI OFF. 40 RPM AT 6K TQ OFF /6K TQ ON WITH 20K WOB. TOUR DRILLING:AST 1.92/ART.84/ADT 2.76 12:00 - 00:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 9758'TO 10146'. UP WT. 200K/DOWN WT. 140K/ROT WT. 169K. 2000 PSI ON/1830 PSI OFF. 40 RPM AT 7K TQ OFF /8K TQ ON WITH 25K WOB. 7/14/2011 00:00 - 12:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 10146'TO 10567'. UP WT.200K/DOWN WT. 145K/ROT WT. 170K. 2020 PSI ON/1850 PSI OFF. 40 RPM AT 7K TQ OFF/8K TQ ON WITH 25K WOB. -AST 3.92/ART 3.55/ADT 7.47 Printed 8/17/2011 3:46:03PM rth America -ALASKA- BP Page 17 of 19 • Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 13:30 1.50 DRILL P PROD1 CIRCULATE BOTTOMS UP AT 250 GPM WITH 1860 PSI ROTATING AT 40 RPM RECIPROCATING A FULL STAND. 13:30 - 17:30 4.00 DRILL P PROD1 PUMP SWEEP AND BEGIN MADD PASS FROM 10563'-10100'ROTATING AT 40 RPM PUMPING AT 225 GPM. STOP ROTATION AT 10100'AND PUMP OUT OF THE HOLE TO 9634'. FLOW CHECK THE WELL FOR 10 MINUTES. STATIC. 17:30 - 22:30 5.00 DRILL P PROD1 PUMP DRY JOB. BLOW DOWN SURFACE EQUIPMENT. PULL OUT OF THE HOLE ON ELEVATORS FROM 9634'-234'. FLOW CHECK AT THE STAND BEFORE BHA. -JENNINGS CREW HELD D1 KICK DRILL,CRT 118 SEC. 22:30 - 00:00 1.50 DRILL P PROD1 FLOW CHECK THE WELL,STATIC. HOLD PJSM WITH SCHLUMBERGER AND RIG CREW. RIG DOWN RADIOACTIVE SOURCES. 7/15/2011 00:00 - 01:30 1.50 DRILL P PROD1 FINISH LAYING DOWN 6.125"PRODUCTION BHA#1. -BIT GRADE 2-7-BT-G-E-2-LT-BHA 01:30 - 02:00 0.50 BOPSUR P PROD1 PJSM ON TESTING BOPE. RIG UP TO TEST BOPE. 02:00 - 03:00 1.00 BOPSUR P PROD1 MOSES CREW HELD BOP DRILL,CRT 135 SEC. CHECK GAS BUSTER BY FILLING IT WITH 6 BBLS OF FLUID. IT WAS CLEAR OF ANY DEBRIS AND TOOK PROPER AMOUNT OF FLUID TO FILL IT UP. 03:00 - 09:00 6.00 BOPSUR P PROD1 BEGIN TESTING BOPE WITH 2-7/8"TEST JT TO 250 PSI LOW AND 3500 PSI HIGH FOR 5 1It�i MINUTES EACH TEST ON THE ANNULAR. TESTS WITNESSED BY BP WSL CHRIS KOBUCK, DOYON TOURPUSHER MIKE SMITH, AND AOGCC REP JEFF JONES. 09:00 - 11:00 2.00 BOPSUR P PROD1 PULL THE TEST PLUG. PICKUP THE STACK WASHING TOOL AND FLUSH OUT THE STACK. RE-INSTALL THE TEST PLUG. 11:00 - 17:00 6.00 BOPSUR P PROD1 TEST THE LOWER 2-7/8"X 5"VBRS WITH 2-7/8"AND 4.5"TEST JOINT TO 250 PSI LOW/ 4000 PSI HIGH. ALL TEST FOR 5 MINUTES CHARTED. TEST BLINDS TO 250 PSI/4000 PSI HIGH FOR 5 MINUTES CHARTED. TEST THE UPPER 3-1/2"X 6"VBR'S WITH 4.5"TEST JOINT. PERFORM ACCUMULATOR TEST AND TEST ALL CHOKE VALVES AND FLOOR VALVES TO 250 PSI LOW/4000 PSI HIGH FOR 5 MINUTES EACH. GOOD TESTS. TESTS WITNESSED BY BP WSL KEN MILLER,DOYON TOOLPUSHER NICK MARMON,AND AOGCC REP JEFF JONES. 17:00 - 17:30 0.50 BOPSUR P PROD1 RIG DOWN TESTING EQUIPMENT AND PULL THE TEST PLUG. 17:30 - 18:00 0.50 DRILL P PROD1 INSTALL THE WEAR RING. Printed 8/17/2011 3:46:03PM Orth America -ALASKA- BP Page 18 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:00 - 20:30 2.50 DRILL P PROD1 MAKE UP PRODUCTION BHA#2 AS FOLLOWS: -6.125"HUGHES EP7258 INSERT BIT WITH 3 X 13 NOZZLES SERIAL#5189344 -AD MOTOR WITH 1.5 DEGREE BEND -6"NON-MAG STAB -(2)NON-MAG FLEX PONY COLLAR -IMPULSE MWD -ADN VISION 475 -(3)NON-MAG FLEX DRILL COLLARS -CROSS OVER -4.75"JARS 20:30 - 22:00 1.50 DRILL P PROD1 RUN IN THE HOLE FROM 234'-1162'. SHALLOW TEST THE MWD WITH 225 GPM WITH 880 PSI. CONTINUE TO RUN IN THE HOLE TO 3494'. 22:00 - 00:00 2.00 DRILL P PROD1 RUN IN THE HOLE FROM 3494'-7682'. FILLING THE PIPE EVERY 20 STANDS. 7/16/2011 00:00 - 02:00 2.00 DRILL P PROD1 CONTINUE TO RUN IN THE HOLE FROM 7682' -9634'. 02:00 - 03:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP AT THE SHOE 250 GPM WITH 1810 PSI ROTATING AT 40 RPM WTIH 5 K TQ RECIPROCATING FULL STAND. • UP WT.200K/DOWN WT. 145K 03:00 - 03:30 0.50 DRILL P PROD1 CONTINUE TO RUN IN THE HOLE FROM 9634' TO 10563'WASHING DOWN THE LAST STAND. 03:30 - 12:00 8.50 DRILL P PROD1 DRILL AHEAD FROM 10567'-10909'. UP WT. 200K/DOWN WT. 147K/ROT WT. 166K. 225 GPM WITH 2010 PSI ON/1840 PSI OFF. 40 RPM AT 7K TQ OFF/9K TQ ON WITH 20K WOB. -ART 1.4/AST 3.63/ADT 5.03 -MOSES'CREW HELD SPILL DRILL,CRT 110 SEC. 12:00 - 00:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 10909'-11190'. UP WT. 195K/DOWN WT. 145K/ROT WT. 165K. 225 GPM WITH 2030 PSI ON/1950 PSI OFF. 40 RPM AT 7K TQ OFF/9K TQ ON WITH 20K WOB. -ART 4.94/AST 4.22/ADT 9.16 -JENNINGS'CREW HELD A FIRE DRILL,CRT 102 SEC. 7/17/2011 00:00 - 03:00 3.00 DRILL P PROD1 DRILL AHEAD FROM 11190'-11295'. UP WT. 195K/DOWN WT. 133K/ROT WT. 168K. 225 GPM WITH 2160 PSI ON/1970 PSI OFF. 40 RPM AT 7K TQ OFF/9K TQ ON WITH 20K WOB. 03:00 - 08:30 5.50 DRILL P PROD1 MADD PASS AT 225 GPM WITH 1810 PSI ROTATING AT 40 RPM FROM 11295'-10653'. UP WT. 195K/DOWN WT. 133K. -SIM OPS: CONSULTING WITH TOWN OVER ISSUE WITH XYZ COORDINATES DIRECTIONAL PLAN FOR TD DUE TO GEOLOGICAL TARGETS IN SOR. 08:30 - 09:30 1.00 DRILL P PROD1 RUN IN THE HOLE FROM 10653'-11295' WASHING DOWN THE LAST STAND. Printed 8/17/2011 3:46:03PM )rth America -ALASKA- BP Page 19 of 19 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: DRL-ONSHORE(DON) Start Date:6/29/2011 End Date: X3-00XM8-C(4,755,856.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations ( (ft) 11)09:30 - 10:30 1.0.0 0 DRILL P PROD1 DRILL AHEAD FROM 11295' 11305'. UP WT. 195K/DOWN WT. 135K/ROT WT. 166K. 225 GPM WITH 2160 PSI ON/1920 PSI OFF. 40 RPM AT 7K TQ OFF/9K TQ ON WITH 20K WOB. -MOSES CREW HELD FIRE DRILL,CRT 105 SEC. 10:30 - 12:30 2.00 DRILL P PROD1 CIRCULATE 2 BOTTOMS UP ROTATING AT RECIPROCATING. 225 GPM WITH 1850 PSI, 60 RPM, UP WT. 182K/DOWN WT. 139K/ROT WT. 160K MONITOR THE WELL FOR 10 MINUTES. STATIC. -MUD WT IN AND OUT 9.3 PPG. 12:30 - 14:30 2.00 DRILL P PROD1 PULL OUT OF THE HOLE FROM 11305'-9634'. WORKED TIGHT SPOTS CLEAN AT 10560' AND 10500'. 14:30 - 16:00 1.50 DRILL P PROD1 CIRCULATE BOTTOMS UP AT THE SHOE ROTATING AND RECIPROCATING AT 225 GPM WITH 1560 PSI AT 60 RPM. FLOW CHECK THE WELL FOR 10 MINUTES. STATIC. -MUD WT IN AND OUT 9.3 PPG. 16:00 - 19:30 3.50 DRILL P PROD1 PULL OUT OF THE HOLE FROM 9634'-234'. -JENNINGS CREW HELD A SPILL DRILL,CRT. 130 SEC. 19:30 - 22:30 3.00 DRILL P PROD1 PJSM ON HANDLING THE RADIOACTIVE SOURCES. LAY DOWN JARS AND FLEX DRILL COLLARS,SECURE RADIOACTIVE SOURCES, LAYDOWN MWD TOOLS,MOTOR AND AND BREAK OFF BIT. -BIT GRADE 2-3-BT-G-E-2-LT-TD 22:30 - 00:00 1.50 DRILL P PROD1 CLEAR FLOOR OF ALL THIRD PARTY VENDING TOOLS NOT NEEDED FOR UPCOMING OPERATIONS. Printed 8/17/2011 3:46:03PM North America -ALASKA- BP Page 1 of 7 Operation Summary Report Common Well Name.Z-67 AFE No Event Type:COM-ONSHORE(CON) Start Date:7/11/2011 End Date: X3-00XM8-C(1,668,636.39) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. _ UWI: Active Datum:Z-67©88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations • (hr) (ft) 7/18/2011 00:00 - 02:00 2.00 CASING P RUNPRD RIG UP TORQUE TURN EQUIPMENT AND PREPARE TO RUN 4.5"PRODUCTION LINER AS PER TALLY. 02:00 - 06:00 4.00 CASING P RUNPRD MAKE UP 4.5"PRODUCTION LINER AS FOI I OWS• -4.5"HES FLOAT SHOE -1 JT4.5"12.6#L-80 BTC LINER(#1) 4.5"HES FLOAT COLLAR 1 JT 4.5"12.6#L-80 VAMTOP PUP JT XO-4.5"BTC BOX X 4.5"VAMTOP PIN -4.5"BAKER LANDING COLLAR -28 JTS 4.5"12.6#L-80 VAMTOP LINER(#3-30) -1 EA.4.5"12.6#L-80 VAMTOP MARKER PUP -13 JTS 4.5"12.6#L-80 VAMTOP LINER (#31-43) -1 EA.4.5"12.6#L-80 VAMTOP PUP -XO-5"BTC BOX X 4.5"IBT-M PIN -BAKER 5"X 7"'HMC'HYD.LINER HANGER -BAKER 5"X 7ZXP PACKER(11.12'X 5.25" TIEBACK) -BAKER LOK'D FIRST 3 CONNECTIONS THEN UTILIZED JET LUBE SEAL GUARD ON ALL CONNECTIONS AFTER THAT. TORQUE TURNED CONNECTIONS TO 4440 FT/LBS. FILLING EVERY 10 JOINTS WHILE RUNNING IN THE HOLE. 06:00 - 07:00 1.00 CASING P RUNPRD RIG DOWN CASING EQUIPMENT AND CHANGE OUT THE BAILS AND ELEVATORS. 07:00 - 07:30 0.50 CASING P RUNPRD CIRCULATE 2 LINER VOLUMES. UP WT.72 K/ DOWN WT.72K PUMPING AT 6 BPM WITH 310 PSI. 07:30 - 12:00 4.50 CASING P RUNPRD RUN IN THE HOLE WITH 4"DRILLPIPE OUT OF THE DERRICK FROM 1813'-6471'. FILLING EVER 10 STANDS. -MOSES'CREW HELD KICK DRILL,CRT 120 SEC. 12:00 - 14:30 2.50 CASING P RUNPRD CONTINUE TO RUN IN THE HOLE WITH 4" DRILLPIPE FROM 6471'-9635'. FILLING EVERY 10 STANDS. 14:30 - 15:30 1.00 CASING P RUNPRD CIRCULATE 1.5X PIPE AND LINER VOLUME. STAGE UP THE PUMPS TO 4 BPM WITH 720 PSI,5 BPM WITH 850 PSI. UP WT.187K/ DOWN WT. 149K -JENNINGS CREW HELD SPILL DRILL,CRT 107 SEC. 15:30 - 16:30 1.00 CASING P RUNPRD CONTINUE TO RUN IN THE HOLE ON 4"DRILL PIPE FROM 9635'-11214. WASH DOWN THE LAST STAND 4 BPM WITH 880 PSI TO 11302'. 4'OF FILL ON BOTTOM. UP WT. 190K/DOWN WT. 140K. 16:30 - 18:00 1.50 CASING P RUNPRD CIRCULATE AND CONDITION WHILE RECIPROCATING PIPE AT 4 BPM WITH 880 PSI. 18:00 - 18:30 0.50 CEMT P RUNPRD RIG UP CEMENT HEAD AND LINES. Printed 8/17/2011 3.39:42PM Orth America -ALASKA- BP Page 2 of 7 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: COM-ONSHORE(CON) Start Date:7/11/2011 End Date: X3-00XM8-C(1,668,636.39) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Datelrime:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67©88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:30 - 20:30 2.00 CEMT P RUNPRD CIRCULATE AND CONDITION MUD WHILE RECIPROCATING PIPE 30'. STAGE UP PUMPS 4 BPM WITH 880 PSI,5 BPM WITH 1110 PSI,6 BPM WITH 1340 PSI. STARTED SEEING LOSSES AT 6 BPM SLOWED PUMPS TO 4 BPM LOSSES DIMINISHED. 20:30 - 22:00 1.50 CEMT P RUNPRD PUMP 10 BBLS OF 12.5 PPG MUD PUSH. ,r TEST LINES TO 4500 PSI. GOOD TEST. VM PUMP ADDITIONAL 20 BBLS OF 12.5 PPG MUD PUSH FOLLOWED By 45 BBLS(194 SX)OF tint's 15.8 PPG CLASS G CEMENT WITH GASBLOK (YIELD 1.54 CU.FT). KICK OUT PLUG WITH 34 BBLS OF 9.8 PPG PERF.PILL AT 5 BPM WITH 780 PSI. SLOW PUMPS TO 3 BPM WITH 990 PSI WITH 95''BBLS DISPLACED AND SAW PLUG SHEAR AT 95.9 BBLS DISPLACED WITH 1600 PSI. CONTINUED DISPLACING AT 3 BPM WITH 1370 PSI AND BUMP PLUG AT 122.9 BBLS DISPLACED WITH 1500 PSI. PRESSURED UP TO 3150 PSI TO SET THE HANGER. SLACK OFF 40K TO CONFIRM HANGER IS SET. PRESSURE UP TO 4200 PSI TO RELEASE RUNNING TOOL.BLEED OFF THE PRESSURE TO CONFIRM THE FLOATS ARE HOLDING. GOOD. CIP 21:36 ESTIMATED TOP OF CEMENT 9494'. 22:00 - 23:00 1.00 CEMT P RUNPRD PICK UP 6'TO EXPOSE THE DOG SUB AND SLACK OFF TO 75K TO SET THE PACKER. PICK UP AND ROTATE AT 20 RPM AND SLACK OFF 2 MORE TIMES TO CONFIRM PACKER IS SET. PRESSURE UP TO 1000 PSI AND PICK UP OUT OF THE PACKER AND CIRCULATE OUT THE CEMENT RECIPROCATING THE PIPE 30'AT 10 BPM WITH 1920 PSI. 5 BBLS OF CEMENT SEEN AT SURFACE. 23:00 - 00:00 1.00 CEMT P RUNPRD EMPTY OUT THE PITS FOR DISPLACEMENT. RIG DOWN CEMENT HEAD AND HOLD AAR ABOUT THE OPERATION. 7/19/2011 00:00 - 02:00 2.00 CEMT P RUNPRD DISPLACE WELL TO 9.3 PPG BRINE AT 6 BPM WITH 1850 PSI. 02:00 - 04:00 2.00 CEMT P RUNPRD SLIP AND CUT DRILLING,LUBRICATE RIG. 04:00 - 09:00 5.00 CEMT P RUNPRD FLOW CHECK,STATIC. PULL OUT OF THE HOLE RACKING BACK DRILL PIPE AND LAY DOWN THE RUNNING TOOL. _ 09:00 - 09:30 0.50 CEMT P RUNPRD RIG DOWN THE RUNNING TOOL AND MOBILIZE THE CEMENT HEAD FROM THE RIG FLOOR. 09:30 - 11:00 1.50 EVAL P RUNPRD MOBILIZE THE E-LINE TOOLS TO THE RIG FLOOR AND RIG UP E-LINE. -MOSES CREW HELD SPILL DRILL,CRT 105 SEC. 11:00 - 14:00 3.00 EVAL P RUNPRD RUN IN THE HOLE WITH 6.1"GAUGE RING AND JUNK BASKET ON E LINE. 14:00 - 14:30 0.50 EVAL P RUNPRD LAY DOWN THE GAUGE RING AND JUNK BASKET,PICK UP THE USIT TOOL. 14:30 - 20:00 5.50 EVAL P RUNPRD RUN 7"USIT LOG TO EVALUATE THE CEMENT. TOC FOR LITE CRETE FOUND AT 3834',TOC FOR CLASS G CEMENT FOUND AT 8270' (FIELD PICK) 20:00 - 20:30 0.50 EVAL P RUNPRD RIG DOWN E-LINE EQUIPMENT. Printed 8/17/2011 3:39:42PM )rth America -ALASKA- BP Page 3 of 7 Operation Summary Report Common Well Name.Z-67 AFE No Event Type: COM-ONSHORE(CON) Start Date:7/11/2011 End Date: X3-00XM8-C(1,668,636.39) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 21:00 0.50 CASING P RUNPRD RIG UP TO PRESSURE TEST THE 7"CASING AND 4.5"LINER. 21:00 - 22:30 1.50 CASING P RUNPRD PRESSURE TEST THE 7"CASING AND 4.5" LINER TO 250 PSI LOW/3500 PSI HIGH FOR 30 MINUTES. GOOD TEST. LOST 50 PSI IN THE FIRST 15 MINUTES AND 0 PSI IN THE SECOND 15 MINUTES. 22:30 - 23:00 0.50 CASING P RUNPRD RIG DOWN THE TESTING EQUIPMENT. 23:00 - 00:00 1.00 PERFOB P OTHCMP RIG UP TO RUN PERF GUNS. MAKE UP SAFETY JOINT. 7/20/2011 00:00 - 11:30 11.50 PERFOB P OTHCMP RUN IN THE HOLE WITH PERFORATING GUNS,2-7/8"PAC HT,AND DRILL PIPE. TAG BOTTOM AT 11244'. PULL UP TO 11150' UP WT.200K. PERFORATING GUNS SET UP FOR INTERVALS OF 10130'-10230'AND 11060'- F 11150'. -MOSES CREW HELD SPILL DRILL,120 SEC. 11:30 - 13:30 2.00 CASING P RUNPRD RIG UP TO TEST 4.5"LINER AND 7"CASING TO 250 PSI LOW AND 4000 PSI HIGH FOR 30 MINUTES. LOST 50 PSI IN THE FIRST 15 MINUTES AND 15 PSI IN THE SECOND 15 MINUTES. TOOK 6.7 BBLS TO PRESSURE UP AND 6.5 BBLS BLED BACK AFTER TEST. GOOD TEST. 13:30 - 14:30 1.00 PERFOB P OTHCMP PJSM,PERFORM THE SCHLUMBERGER PERFORATING GUN FIRING SEQUENCE AND HAVE POSITIVE INDICATION AT SURFACE OF THE GUNS FIRING. 14:30 - 15:30 1.00 PERFOB P OTHCMP PULL OUT OF THE HOLE FROM 11150'- 10081'. FLOW CHECK THE WELL FOR 10 MINUTES. 15:30 - 16:30 1.00 PERFOB P OTHCMP CIRCULATE BOTTOMS UP AT 6 BPM WITH 1420 PSL 16:30 - 20:30 4.00 PERFOB P OTHCMP PULL OUT OF THE HOLE FROM 10081'-5520' LAYING DOWN 4"DRILL PIPE TO THE PIPE SHED. 20:30 - 22:00 1.50 PERFOB P OTHCMP RUN IN THE HOLE FROM 5520'-8747'WITH 4" DRILL PIPE FROM THE DERRICK. 22:00 - 00:00 2.00 PERFOB P OTHCMP PULL OUT OF THE HOLE FROM 8747'-6359' LAYING DOWN 4"DRILL PIPE TO THE PIPE SHED. -LOST A TOTAL OF 8 BBLS TO THE FORMATION ON THE TRIP OUT. 7/21/2011 00:00 - 00:30 0.50 PERFOB P OTHCMP SERVICE THE TOP DRIVE,DRAW WORKS, AND IRON ROUGHNECK. 00:30 - 03:30 3.00 PERFOB P OTHCMP PULL OUT OF THE HOLE FROM 6359'-2260'. MAKE UP SAFETY JOINT FOR 2-7/8"PAC HT. 03:30 - 05:00 1.50 PERFOB P OTHCMP PULL OUT OF THE HOLE WITH 2-7/8"PAC HT AND PERFORATING GUNS. -MOSES CREW HELD KICK WHILE TRIPPING DRILL,CRT 170 SEC. 05:00 - 10:30 5.50 PERFOB P OTHCMP PJSM ON LAYING DOWN PERF GUNS. LAYDOWN THE PERF GUNS AND VERIFY THAT ALL SHOTS FIRED. -MOSES'CREW HELD KICK WHILE TRIPPING DRILL WITH SAFETY JOINT OF PERF GUNS, CRT 410 SEC. 10:30 - 12:00 1.50 PERFOB P OTHCMP RIG DOWN ALL PERFORATING EQUIPMENT. Printed 8/17/2011 3:39:42PM )rth America -ALASKA- BP Page 4 of 7 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: COM-ONSHORE(CON) Start Date: 7/11/2011 End Date: X3-00XM8-C(1,668,636.39) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release: 7/23/2011 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-67©88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 12:30 0.50 RUNCOM P RUNCMP DRAIN THE STACK AND PULL THE WEAR BUSHING. 12:30 - 13:00 0.50 RUNCOM P RUNCMP MAKE UP THE HANGER AND MAKE A DUMMY RUN. 13:00 - 14:00 1.00 RUNCOM P RUNCMP CLEAR ALL THE PERFORATING EQUIPMENT AND GUNS FROM THE RIG FLOOR. 14:00 - 14:30 0.50 RUNCOM P RUNCMP RIG UP TO RUN 4.5". 12.6#.13CR,VAM TOP COMPLETION. Printed 8/17/2011 3:39:42PM )rth America -ALASKA- BP Page 5 of 7 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: COM-ONSHORE(CON) Start Date:7/11/2011 End Date: X3-00XM8-C(1,668,636.39) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release:7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 00:00 9.50 RUNCOM P RUNCMP MAKE UP 4.5"12.6#13-CR VAM TOP COMPLETION AS FOLLOWS: 4.5"WLEG 12.6#9CR TC-II BOX 4.5"12.6#13CR TC-II X TC-II PUP JOINT 4.5"XN 3.813"X 3.725"NOGO NIPPLE W/ RHC-M PLUG 4.5"12.6#13C4.5"12.6#13CR TC-II X TC-II PUP JOINT 4.5"XO 12.6#13CR VAM TOP B X TC-II P 1 JT(A)4.5"12.6#13CR-85 VAM TOP W/BAKERLOCKED CPLG 4.5" 12.6#13CR TC-II BOX X VAM TOP PIN PUP 4.5"X NIPPLE 9CR 3.813"ID WITH RHC-M 4.5"12.6#13CR-80 VAM TOP BOX X TC-Il PIN PUP 4.5"12.6#13CR-80 VAM TOP BOX X PIN PUP 4.5"12.6#13CR-80 VAM TOP BOX X PIN PUP 7"X 4.5"HES TNT PACKER 4.5"12.6#13CR-80 VAM TOP BOX X PIN PUP 4.5"12.6#13CR-80 TC-II BOX X VAM TOP PIN PUP 4.5"X NIPPLE 9CR 3.813"ID 4.5"12.6#13CR-80 VAM TOP BOX X TC-II PIN PUP 4.5"12.6#13CR-80 VAM TOP BOX X PIN PUP 32 JTS(1-32)4.5"12.6#13CR-80 VAM TOP TBG 4.5"12.6#13CR-80 TC-II BOX X VAM TOP PIN PUP GLM-1 4.5"X 1"CAMCO KBG-2 W/1"DUMMY& BK-LATCH 4.5"12.6#13CR-80 TC-II PIN X VAM TOP BOX PUP 4.5" 12.6#13CR-80 VAM TOP PIN X VAM TOP BOX PUP 20 JTS(#33-52)4.5"12.6#13CR-85 VAM TOP TUBING 4.5"12.6#13CR-80 TC-II BOX X VAM TOP PIN PUP GLM-2 4.5"X 1"CAMCO KBG-2 W/1"DUMMY& BK-LATCH 4.5"12.6#13CR-80 TC-II PIN X VAM TOP BOX PUP 4.5"12.6#13CR-80 VAM TOP PIN X VAM TOP BOX PUP 35 JTS(#53-87)4.5"12.6#13CR-85 VAM TOP TUBING 4.5"12.6#13CR-80 TC-Il BOX X VAM TOP PIN PUP GLM-3 4.5"X 1"CAMCO KBG-2 W/1"DUMMY& BK-LATCH 4.5"12.6#13CR-80 TC-II PIN X VAM TOP BOX PUP 4.5"12.6#13CR-80 VAM TOP PIN X VAM TOP BOX PUP 44 JTS(#88-131)4.5"12.6#13CR-85 VAM TOP TUBING 4.5"12.6#13CR-80 TC-II BOX X VAM TOP PIN PUP GLM-4 4.5"X 1"CAMCO KBG-2 W/DCK-2& BEK-LATCH 4.5"12.6#13CR-80 TC-II PIN X VAM TOP BOX Printed 8/17/2011 3:39:42PM )rth America -ALASKA- BP Page 6 of 7 Operation Summary Report Common Well Name:Z-67 AFE No Event Type: COM-ONSHORE(CON) Start Date: 7/11/2011 End Date: X3-00XM8-C(1,668,636.39) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release: 7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) PUP 4.5"12.6#13CR-80 VAM TOP PIN X VAM TOP BOX PUP 37 JTS(#132-168)4.5"12.6#13CR-85 VAM TOP TUBING 4.5"12.6#13CR-80 TC-II BOX X VAM TOP PIN PUP 4.5"X NIPPLE 9CR W/3.813"ID PKG BORE TC-11 4.5"12.6#13CR-80 VAM TOP BOX X TC-II PIN XO PUP 4.5"12.6#13CR-80 VAM TOP BOX X VAM TOP PIN XO PUP 7 JTS(#169-175)4.5"12.6#13CR-85 VAM TOP TUBING -UTILIZE BAKER LOK ON ALL CONNECTIONS BELOW THE PACKER AND JET LUBE SEAL GUARD ON ALL OTHER CONNECTIONS. TORQUE TURN ALL CONNECTIONS TO 4400 FT/LBS. 7/22/2011 00:00 - 03:30 3.50 RUNCOM P RUNCMP 46 JTS(#175-220)4.5"12.6#13CR-85 VAM TOP TUBING 4.5"12.6#13CR-85 VAM TOP PUP JOINT 19.72' 4.5"12.6#13CR-85 VAM TOP PUP JOINT 2.08' PUP 4.5"12.6#13CR-80 TC-II PIN X VAM TOP PIN 11"TUBING HANGER BODY -TAGGED NO-GO AT 9510.37' -SPACE OUT TO LAND WLEG 5.48'INSIDE THE SEAL BORE EXTENSION. _ 03:30 - 07:00 3.50 RUNCOM P RUNCMP REVERSE CIRCULATE IN 360 BBLS OF 9.8 PPG AT 4 BPM WITH 570 PSI,FOLLOWED BY 106 BBLS OF 9.8 PPG BRINE WITH CORROSION INHIBITOR,,FOLLOWED BY 71 BBLS OF CLEAN 9.8 PPG BRINE AT 4 BPM WITH 630 PSI. 07:00 - 11:00 4.00 RUNCOM P RUNCMP i:•- 1.►I :•• • ;. ' G. SET THE PACKER AND TEST TO 250 PSI LOW FOR 5 MINUTES/4000 PSI HIGH FOR 30 MINUTES. TOOK 3.3 BBLS TO PRESSURE UP AND BLED BACK 2.5 BBLS. LOST 60 PSI IN THE FIRST 15 MINUTES AND 10 PSI IN THE SECOND 15 MINUTES. BLEED OFF TUBING PRESSURE TO 1500 PSI. PRESSURE UP THE ANNULUS TO 250 PSI LOW FOR 5 MINUTES/4000 PSI FOR 30 MINUTES. LOST 80 PSI IN THE FIRST 15 MINUTES AND 40 PSI IN THE SECOND 15 MINUTES. GOOD TEST. BLEED THE ANNULUS PRESSURE TO 0 PSI,THEN TUBING PRESSURE TO 0 PSI. PRESSURE UP ON THE ANNULUS TO 3000 PSI AND SHEAR THE DCK VALVE. PUMPED 2 BBLS EACH WAY TO CONFIRM SHEAR AT 2 BPM WITH 700 PSI. 11:00 - 11:30 0.50 RUNCOM P RUNCMP BLOW DOWN THE CEMENT LINE AND RIG DOWN THE TESTING EQUIPMENT. DRY ROD IN THE TWC. Printed 8/17/2011 3:39:42PM )rth America -ALASKA- BP Page 7 of 7 Operation Summary Report Common Well Name:Z-67 1AFE No Event Type:COM-ONSHORE(CON) Start Date:7/11/2011 End Date: 'X3-00XM8-C(1,668,636.39) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:6/30/2011 3:30:00PM Rig Release 7/23/2011 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-67 @88.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 12:00 0.50 RUNCOM P RUNCMP TEST THE TWC FROM BELOW TO 250 PSI FOR 5 MINUTES AND 2000 PSI FOR 5 MINUTES. GOOD TEST. TEST FROM ABOVE TO 250 PSI LOW/3500 PSI HIGH FOR 5 MINUTES. GOOD TEST. 12:00 - 15:00 3.00 RUNCOM P RUNCMP BLOW DOWN THE KILL AND CHOKE MANIFOLD. LAYDOWN THE LONG BALES, COMPENSATOR,SLIPS,AND ELEVATORS. 15:00 - 17:30 2.50 WHSUR P WHDTRE NIPPLE DOWN THE BOP,PULL THE FLOW LINE COVERS AND FLOW LINE,PULL THE BELL NIPPLE AND DISCONNECT THE CHOKE LINE ON THE STACK. 17:30 - 19:30 2.00 WHSUR P WHDTRE INSTALL THE ADAPTOR FLANGE AND MAKE UP THE PRODUCTION TREE. 19:30 - 21:30 2.00 WHSUR P WHDTRE TEST THE ADAPTOR FLANGE VOID TO 250 PSI LOW FOR 5 MINUTES AND 5000 PSI FOR 5 MINUTES. GOOD TEST. 21:30 - 22:00 0.50 WHSUR P WHDTRE RIG UP THE LUBRICATOR AND TEST THE LUBRICATOR AND TREE TO 250 PSI LOW FOR 5 MINUTES AND 5000 PSI HIGH FOR 10 MINUTES. 22:00 - 23:00 1.00 WHSUR P WHDTRE RIG UP TO PUMP DOWN THE IA WITH LITTLE RED SERVICES TO FREEZE PROTECT THE ..WELL. 23:00 - 23:30 0.50 WHSUR P WHDTRE PRESSURE TEST LRS TO 250 PSI LOW FOR 5 MINUTES AND 3500 PSI HIGH FOR 5 MINUTES. 23:30 - 00:00 0.50 WHSUR P WHDTRE BEGIN PUMPING 80 DEGREE DIESEL FREEZE PROTECT WITH LITTLE RED SERVICES AT 2 BPM WITH 1300 PSI. 7/23/2011 00:00 - 03:00 3.00 WHSUR P WHDTRE CONTINUE TO PUMP 80 DEGREE DIESEL FREEZE PROTECT AT 2 BPM WITH A FCP OF 850 PSI. PUMPED A TOTAL OF 61 BBLS OF DIESEL. ALLOW TO U-TUBE. CLOSE IN THE WELL AND SUCK BACK THE LINES WITH LITTLE RED SERVICES. 03:00 - 04:30 1.50 WHSUR P WHDTRE RIG UP LUBRICATOR AND TEST TO 250 PSI LOW/3500 PSI HIGH. INSTALL THE BPV. 04:30 - 05:30 1.00 WHSUR P WHDTRE RIG UP LITTLE RED SERVICES AND TEST BPV TO 250 PSI LOW/2000 PSI HIGH FROM BELOW. LOSE 17 PSI DURING THE 5 MINUTE TEST. GOOD TEST. 05:30 - 06:00 0.50 WHSUR P WHDTRE RIG DOWN LRS AND PREPARE RIG TO MOVE OFF THE WELL AND GO INTO MAINTENANCE. -RELEASE RIG AT 06:00- 1 Printed 8/17/2011 3:39:42PM Schiumberger Drilling&Measurements MWD/LWD Log Product Delivery Customer BP Exploration(Alaska)Inc Dispatched To: Christine Mahnken(AOGCC) Well No Z-67 Date Dispatched: 21-Jul-11 Installation/Rig Doyon 14 Dispatched By: Brian Muzny Data No Of Prints No of CDs Surveys 2 1 Please sign and return to: James H.Johnson Received By: 110%-•-Ldt4 BP Exploration(Alaska)Inc. Petrotechnical Data Center(LR2-1) 900 E.Benson Blvd. J V ' Anchorage,Alaska 99508 ��C!!! 1 Fax:907-564-4005 e-mail address:johnsojh@bp.com LWD Log Delivery V1.0,01/22/2010 02 <1 --613 : v N "Y �� �� I • I-, u m I ,1 ri r� gg � p i T� I :, r' I:. r z I O I O C a } .,,F,=<",`,,1 Sao o�or ,g".r.' ___ —�_ 0 r. w P 4 CJ - z c > -'�b' z r2nr rn _ - _ i II H - i C.) Cr 1 i.W - J F-1ri.' 1 fA,,,,ili ,-,x III 0 oz1 m1( , {� 411,, 0 0 —7*'1. I _ . I ooyti =111:' , Pt c3 ils3 to IN mm — ...) ()'1 I 4:*.`ii'llk,—I ?:1 '''':_.2. 1 •111 00 00 ,� N c C w,.1 O 0 11 �L-6 -1 u--� z____ __ __ 18 1 8 Ill o mrP x € at -Fri1 ~ " ? T r ;� T r cD _ z 0' 14 N II J o . "` r m r rr. it cn r- _ on I-1 A T b 73, A s n 7- F F")`° c Q c ok, StAilLE CHF ALASKA SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John Egbejimba Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Z-67 BP Exploration (Alaska), Inc. Permit No: 211-013 Surface Location: 4308' FSL, 3806' FEL, SEC. 19, T11N, R12E, UM Bottomhole Location: 1541' FSL, 690' FEL, SEC. 24, T11 N, R 11 E, UM Dear Mr. Egbejimba: Enclosed is the approved application for permit to drill the above referenced service well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Si. -ly I oh r' . orma sioner DATED this / day of February, 2011. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) fle C Ili` , ` STATE OF ALASKA ALA. OIL AND GAS CONSERVATION COMA ION JAN 2 4 2011 /®?.5--// PERMIT TO DRILL 20 AAC 25.005 Alaska Oil&Gas Coos.Cordtmlission la.Type of work: 1 b.Proposed Well Class: 0 Development Oil 0 Service-Wini 0 Single Zone 1c. Specify i !,Nosed for: ® Drill 0 Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed Gas ■ Gas Hydrates 0 Re-Entry 0 Exploratory IS Service-WAG 0 Service-Disp 0 Shale Gas 2. Operator Name: 5.Bond: ® Blanket 0 Single Well 11. Well Name and Number. BP Exploration(Alaska)Inc. Bond No. 6194193 PBU Z-67 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O.Box 196612,Anchorage,Alaska 99519-6612 MD 11322' T/D 8869' Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Desi • se Number)jo1 Bay Oil Pool Surface: ADL&028245 alp 4308'FSL,3806'FEL, SEC. 19,T11N,R12E, UM"as staked" Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 2510'FSL, 1377'FEL,SEC.24,T11N, R11 E, UM March 1,2011 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1541'FSL,690'FEL,SEC.24,T11N,R11E, UM 2560 3730' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 94.20 feet 15.Distance to Nearest Well Open Surface: x- 598871 y-5959100 Zone- ASP4 GL Elevation above MSL: 54.60 feet to Same Pool: -120' 16.Deviated Wells: Kickoff Depth: 400 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 116.19 degrees _ Downhole: 3800 Surface: 2940 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 42" 20" 133# A-53 PE 80' Surface Surface 80' 80' -260 sx Arctic Set 12-1/4" 9-5/8" 40# L-80 BTC 3343' Surface Surface 3343' 3108' 512 sx Arctic Set Lite:407 sx Class'G' "v 8-3/4" 7" 26# L-80 VamTop 9710' Surface Surface 9710' 8604' 300 sx LiteCRETE:198 sx Class'G' ' 6-1/8" 4-1/2" 12.6# 13Cr-85 VamTop 1762' 9560' 8465' 11322' 8869' 223 sx Silica. Latex Class'G' r 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth TVD(ft): Junk(measured): Casing Length Size Cement Volume - MD TVD Conductor/Structural Surface Intermediate Production Liner Perforation Depth MD(ft): Perforation Depth TVD(ft): 20.Attachments: 0 Property Plat ®BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis ®Diverter Sketch 0 Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Contact Trevor Hyatt,564-4627 Printed Name John Egbejimba , Title Engineering Team Leader ,,.�r Prepared By Name/Number Signature i`J y t�` `L 7f /�s �Phone 564-5859 Date1/24/// Elizabeth Barker,564-4628 f Commission Use Only Permit To Drill t API Number. Permit oval te: See cover letter for Number: Jf/0'3 50-0, 904_1411/I/O000 0 \'D 1\ other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales: re( Other: �m0 P s ( c rest- i ' \Samples Req'd: ❑ es iNo Mud Log Req'd: 0/Yes idNo ,k4-z 500 p S` 4,..,„.,,,i,,,,/ / 19 H2S Measures: /�dYes 0 No ZDire/ct'ionnal Survey Req'd: her Yes 0 No // renta0G G-tCGp h4 L /0W, C z�l ARC. •o33 `J 1 '��ifir1Y tr�:of, /►Ki a L i ;r- 4t.weri e..(Rio 3 - -� eo p --s ft- cyc% 4-,117- !� Date N'LS-fi __„,_i APPROVED BY THE COMMISSION ,COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from th CPI.1 ppro I(20 AA ' 1,� ,)) Submit In Duplicate Well Name: Z-67i Drill and Complete Plan Summary Name Position Office Home Cell Trevor Hyatt Drilling Engineer 4627 223-3087 223-3087 Roger Sels New Well Delivery Geologist 5215 240-8096 Bob Dawson Ops Geologist 5264 345-3359 242-2391 Mike Francis New Well Delivery PE 4240 644-0534 529-8678 Type of Well (service / producer/ injector): Pre-Produced Injector Surface Northing Easting Offsets TRS Location 5,959,100 598,871 4,308' FSL / 3,806' FEL 11N, 12E, 19 Northing Easting TVDss Offsets TRS Target 5,957,270 596,370 -8775 2510' FSL / 1377' FEL 11N, 11E, 24 Locations 5,956,822 596,781 -8945 2057' FSL / 972' FEL 11N, 11E, 24 Bottom Northing Easting TVDss Offsets TRS Location 5,956,310 597,070 -8775 1541' FSL / 690' FEL 11N, 10E, 24 API NUMBER: NA Rig: Doyon 25 Estimated Start Date: 3/1/2011 Operating Days to complete: 24.88 MD: 11322' TVD: 8869' RT/GL: 39.6/54.6' RTE: 94.2 Well Design: Grassroots Ivishak Zones 3-4 Pre-Produced Injector 4-1/2" tbg, 12.6# 13Cr-85, Vam Top, Cemented and perforated Objective Pre-Produced WAG injector to support a new 7-Pad expansion pattern Directional Plan: Version: Sperry Wp10 KOP: 400' MD, build 1.5/100 Maximum Hole Angle: 116.19° Close Approach Wells: All wells pass major risk criteria. Reference anti-collision report Nearest well within Pool Ivishak Pool——120' vertically below Z-33A injector at planned TD Schrader Bluff Pool —Z-09 © 1094' Kuparuk Pool— Highland State © 1116' Distance to Nearest Property 3730' from TSAD to PBU boundary Line: Z-67i Permit Application Page 1 Wells within 1/4 mile of this injection well: Ao(-- Dist.to nearest property line,ft.: 3730 ft.from TSAD to PBU boundary Dist.to nearest well within pool,ft: —120'vertically below Z-33A injector at planed TD Wells within 1/4 mi.of this injection well r top reservoir Well Name Dist,Ft. Annulus Integrity Comments Z-33A 0'(-120'vertical) MITIA passed to 3000 psi 5/1/07 HIGHLANDST 101' Abandoned Z-33 583' 1/01/09/1989 Plugged Back For Redrill(PB) Wells within 1/4 mi.of this injection well Z-01A 1183' Z-01B status-operable within the Ivishak reservoir Z-01APB1 845' Z-01B status-operable Z-01 APB2 318' Z-01 B status-operable Z-01APB3 857' Z-01B status-operable Z-02 1131' Operable Dist.to nearest well within Schrader Bluff Pool,ft: Z-09- 1094' Wells within 1/4 mi.of this injection well within Schrader Bluff Pool Well Name Dist,Ft. Annulus Integrity Comments Z-09 1094 Operable Possible collapsed tubing,liner straddle,rock producer,TxIA Z-38PB1 1184 communication developed during pressure testing Possible collapsed tubing,liner straddle,rock producer,TxIA Z-38 1185 communication developed during pressure testing Z-06 1202 TxIA communication-not operable Highland State 1250 Abandoned Dist.to nearest well within Kuparuk Pool,ft: Highland State- 1116' Wells within 1/4 mi.of this injection well within Kuparuk Pool Well Name Dist,Ft. Annulus Integrity Comments Highland State 1116 Abandoned Logging Program: Surface Interval Drilling, MWD: GR Open Hole: None Cased Hole: None Intermediate Interval Drilling, MWD: Real time GR/RES Open Hole: N/A Cased Hole: USIT Production Interval Drilling, MWD: Real Time GR/RES, Real time Az DEN/NEU (recorded mode okay in heel build) Open Hole: None Cased Hole: None Z-67i Permit Application Page 2 Mud Program: 12-1/4" Surface Hole: Fresh Water Drilplex Mud Density Funnel Viscosity LSYP Yield Point API FL al (ppg) (seconds) (2x3-6 rpm) (Ib/100ft1) (mis/30min) Spud to Base 8.8—9.5 60-120 (for reference 30—50 40—80 NC 10.8 PF only. Fluid should be run off LSYP) Base PF to 8.8—9.5 60-120 (for reference 20—45 40—80 NC 10.8 TD only. Fluid should be run off LSYP) 8 3/4" Production Hole: LSND MW PV YP API FL HTHP FL Drill Interval (Ib/1000f pH Solids MBT (ppg) (cp) t2) (ml/30min) (m1/30min) (%) Csg Shoe to 8.8 -9.4 10 - 18 18 - 30 < 6 N/C 9 - 10 N/C < 15 THRZ THRZ to TD 10.1 12 -22 18 - 30 4 -6 <10.0 9 - 10 < 6 < 20 6-1/8" Production Hole: FLOPRO SF Reservoir Drill-in Fluid Depth Interval Density (ppg) PV YP LSVR API Fl _ pH MBT Csg Shoe to TD 9.0-9.37 6 - 12 22 -28 > 20,000 6.0 - 8.0 9.0 -9.5 < 3 Casing/Tubing Program: Hole Size Csg/ Wt/Ft Grade Connection Length Top Btm Tbg O.D. MD/TVD MD/TVD RKB 42" 20" 133 A-53 PE 80' GL 80'/80' 12 '/4' 9 '/8" 40 L-80 BTC 3343' GL 3343' / 3108' 8 3/" 7" 26 L-80 VAM TOP 9,710' GL 9,710' /8604' 6 1/8" 4 W 12.6 13Cr-85 VAM TOP 1762' 9,560' / 8,465' 11,322' /8869' v Tubing 4 W 12.6 13Cr-85 VAM TOP 9549' GL 9,560' /8465' Formation Integrity Testing: Test Point Depth Test Type 9-5/8" Surface Casing 20' —50' from surface shoe LOT Test Point Depth Test Type 7" Intermediate Casing 20' —50' from intermediate shoe FIT Z-67i Permit Application Page 3 Cement Calculations: Surface Casin•: Casing Size 9 5/8" Basis: Lead: Open hole volume +250% excess in permafrost. Port collar used if necessary. Lead TOC: Surface Tail: Open hole volume +40% excess below permafrost+ 80' shoe track. Tail TOC: 1000' MD above the casing shoe Total Cement Volume: Lead 411 bbl /2309 ft'/ 512 sks of Arctic Set Lite at 10.7 ppg and 4.51 cf/sk Tail 84 bbl /473 ft's/407 sks of Class `G' at 15.8 ppg and 1.16 cf/sk Intermediate Casing: Casing Size 7" Basis: Lead: Open hole volume 30% excess Lead TOC: 500' MD above Ma Tail: Open hole volume 40% excess + 80' shoe track. Tail TOC: 1000' MD above the casing shoe ,// Total Cement Volume: Lead 157 bbl/879 ft's/299 sks of LiteCRETE at 11 ppg and 2.94 cf/sk Tail 41 bbl /228 fe/ 195sks of Class 'G' at 15.8 ppg and 1.16 cf/sk Production Liner: Casing Size 4 1/4" Basis: Lead: None Planned Lead TOC: NA Tail: Open hole volume with 40% excess + 80' shoe track volume Tail TOC: Top of Liner Total Cement Volume: Lead None Planned Tail 46 bbl/261 ft'/225_sks of Silica, Latex 'G' at 15.8 ppg and 1.16 cf/sk Z-67i Permit Application Page 4 Formation Markers: (.o,nmercial Hydrocarbon Est.Formation Tops Uncertainty Bearing Est.Pore Press. Est.Pore Press. Formation (7'!7)ss) (feel) (Yes/No) (Psi) (ppg Ehl6V) NOTE:All formation tops are required from 1000'above proposed KOP to TD for sidetracks NOTE:All formation tops are required from surface to TD for all new wells G1 -265 +/-40' No 119 8.7 SV6 -1010 +/-40' No 455 8.7 EOCU -1570 +/-40' No 707 8.7 SV5 -1645 +/-40' No 740 8.7 Hydrates below SV4 -1770 +/-40' BPRF 797 8.7 BPRF -1785 +/-40' No 803 8.7 SV3 -2235 +/-40' Hydrates 1006 8.7 SV2 -2425 +/-40' Hydrates 1091 8.7 SV1 -2740 +/-40' Hydrates 1233 8.7 9 5/8"Surface Casing -3025 +/-40' 1361 8.7 UG4 -3060 +/-40' No 1377 8.7 UG4A -3105 +/-40' No 1397 8.7 UG3 lb(/ -3390 +/-40' No 1526 8.7 UG1 -3890 +/-40' No 1751 8.7 UG_Ma.__._9 -4125 +/-40' No/wet 1856 8.7 Mb1 -4175 +/-40' No/wet 1879 8.7 UG_Mb2 -4250 +/-40' No/wet 1913 8.7 UG_Mc -4345 +/-40' Heavy oil 1955 8.7 SB_Na -4425 +/-25' No 1991 8.7 SB_Nb -4450 +/-25' Yes? 2003 8.7 SB_OA -4595 +7-25' Yes? 2068 8.7 SB OBa -4660 +/-25' Yes? 2097 8.7 SB_OBb -4690 +/-25' No/wet 2111 8.7 SB_OBc -4735 +1-25' No/wet 2131 8.7 SB_OBd -4790 +/-25' Yes? 2156 8.7 SB_OBe -4850 +/-25' No 2183 8.7 SB OBf -4895 +/-25' No 2203 8.7 SB OBf_Base -4940 +/-25' No 2223 8.7 CM-2 -5255 +/-20 CM-1 -5965 +/-20 TLBK -6305 +/-20 THRZ -6500 +/-20 TKLB -6720 +/-20 K-1 -6720 +/-20 TKC4 -6777 +/-20 Wet 3016 8.6 TKB/LCU -6825 +/-20 Wet 3037 8.6 TKA5 -6875 +/-20 Wet 3059 8.6 TKA4 -6900 +/-20 Wet 3071 8.6 TMLV -6940 +/-20 Highland Fault -7180 +/- 100' TKNG -7180 +1-100' TJF -7566 +/-30' TJE -7816 +/-30' TJD -8026 +/-30' TJC -8258 +/-30' TJB -8376 +/-20 TJA -8434 +/-20 TSGR -7 TJA . -8510 +/-20 Yes gas 3800 8.7 TSHA -8541 +/-20 3780 8.5 TSHB -8604 +/-20 3760 8.5 TSHC -8625 ,'/-20 3740 8.4 TSHD -8644 +/-20 3720 8.3 TEIL -8657 +/-20 3700 8.2 TSAD(46P) -8695 +/-20 Yes 3680 8.1 45N -8717 +/-20 Yes 3688 8.1 45P -8721 +/-20 Yes 3689 8.1 44N /-20 Yes 3698 8.1 44P 8751 20 Yes 3700 8.1 43N -8763 +/-20 Yes 3704 8.1 43P -8772 +/-20 Yes 3707 8.1 GOC -8780 t/-20 Yes 3710 8.1 42N -8795 +/-20 Yes 3705 8.1 t 42P -8797 +/-20 Yes 3710 8.1 41N -8835 +/-20 Yes 3723 8.1 Z-67i Permit Application Page 5 41P -8848 +/-20 Yes 3728 8.1 31 N -8879 +/-20 Yes 3739 8.1 31P -8885 +/-20 Yes 3741 8.1 OWC(<8ohms) -8910 +/- 10 3750 8.1 27N -8930 +/-20 Yes 3763 8.1 27P -8930 +/-20 Yes 3763 8.1 27P -8926 +/-20 Yes 3762 8.1 27N -8925 +/-20 Yes 3761 8.1 OWC(<8ohms) -8910 +/-10 3755 8.1 31P -8874 +/-20 Yes 3741 8.1 31N -8869 +/-20 Yes 3739 8.1 41P -8843 +/-20 Yes 3728 8.1 41 N -8826 +/-20 Yes 3722 8.1 GOC 8800-8810 +/-10 Yes 3710 8.1 42P -8788 +/-20 Yes 3711 8.1 43N -8785 +/-20 Yes 3710 8.1 Well TD Criteria TD ensures we are able to perf 50'and in the 42P above 41N.PBTD assumed to be —80'back from TD. (i.e. ??ft TVD,??ft Rathole,etc.) Obtain full log suite through entire 42P interval at toe. Comments 1. Areal pressure map indicates 3700-3800 psi at 8800 TVDss in the region 2. 01/06/2010 well Z-Olb gauge pressure indicated 3810 psi at 8800 TVDSS 3. 03/30/2006 Z-11 a static pressure survey indicated 3671 psi,230 deg F at 8800 TVDSS 4. 05/21/2008 Z-33a static pressure survey indicated 3772 psi at 8800 TVDSS 5. 12/13/2007 Z-06a static pressure survey indicated 3731 psi, 231 F at 8800 TVDSS 6.Review Z-38 offset well which had higher Shublik pressures 7.Pressures in toe of well are elevated to reflect increased areal pressure from Z-33A injection. 8. Sag river pressure estimated to be slightly higher than Ivishak. Basis for this is NW fault block area Sag pressures where there is minimal sag offtake but is Ivishak production. Note that there is higher uncertainty associated with the Sag and Shublik pressures than the Ivishak pressure. 2006 Sag river MDT indicated 3720 psi at 8616 TVDSS,gas in reservoir. Obtain DH pressure from Z-01 B prior to drilling. Temporarily shut in Z-33 several months ahead of spud date and monitor surface pressure to determine reservoir pressure. Determine how many days Z-33 will need to be shut in prior to drilling production hole. 9. Pore pressure prediction will be reviewed and approved by BPXA compliance team before spud. Jennie Flight will coordinate this with Jerry Siok. Fault Details TVDSS Formation Where Encounter Fault MD Intersect Intersect Est.Throw Throw Direction Uncertainty Highland Fault-Miluveach(DT)to Kingak(UT 8,288 -7180 300-350' DTSW +/-100'and Comments Fault Coordinates for Mapping X Y TVDSS Highland Fault-Point 1 595780 5958000 -7180 Highland Fault-Point 2 595843 5957692 -7180 ties well @ 1.65 Highland Fault-Point 3 595960 5957520 -7180 Z-67i Permit Application Page 6 6 Well Control: 12 '/4" hole will be drilled with diverter. The 8 3/4" intermediate hole and the 6-1/8" production hole will use well control equipment consisting of 5000 psi working pressure pipe rams (2), UP blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Annular preventer will be tested to 2500 psi. Rams will be tested to 4000 psi. The BOP test frequency will be conducted on a 14 day frequency, with a function test every 7 days. Except for significant operational issues that may effect well integrity or pose safety concerns, an extension to the 14 day BOP test period should not be requested. Diverter, BOPE and choke manifold schematics of Doyon 25 are attached to this permit to drill. Production Interval- • Maximum anticipated BHP: 3800 psi @ 8510' TVDss, 8.7 ppg EMW • Maximum surface pressure: 2940 psi @ surface (based on BHP and a full column of gas from TD @ 0.10 psi/ft) • Planned BOP test pressure: • Annular Preventer 250 / 2500 psi • Rams 250 / 4000 psi • Planned completion fluid: 9.0 ppg brine / 6.8 ppg diesel (11321' MD, also TD) Kick Tolerance/ Integrity Testing Summary Table Casing and Casing Maximum Influx Mud Exp Pore LOT/ Interval Test Volume Weight Press FIT Pressure 95/8" Surface 3500 psi 41 BBLS (assuming 10.1 9.2 LOT Casing 11 LOT) 7" Intermediate 3500 psi Infinite (assuming 9.2 8.7 FIT Liner 9.5 FIT) 61/8"" Production 4000 psi NA NA NA NA Casing Disposal: • No annular disposal in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS- 04 for disposal. Haul all Class I wastes to Pad 3 for disposal. Variance Request: To avoid the risk of plugging the flow line with large rocks and wood encountered while drilling surface hole, it is requested to drill without a flow paddle for the first portion of the surface hole. V After drilling past the larger rocks and wood sections, the flow paddle will be put back in the flow line. Z-67i Permit Application Page 7 Z-67i - Drill and Complete Procedure Summary Pre-Riq Work: 1. A 20" conductor has been set. Weld an FMC landing ring for a Gen 5 well head. 2. If necessary, level the pad and prepare location for rig move. 3. Remove well houses as necessary. Riq Operations: 1/ 1. MIRU Doyon 25. NU diverter spool & riser and function test. PU drill pipe as required and stand back in derrick. 2. MU 12-W drilling assembly with MWD/GR. Spud and directionally drill surface hole to TD. CBU or-' until hole is clean, then POOH and lay down BHA. 3. Run and cement the 9-%", 40#, BTC, L-80 casing to surface, displacing cement with mud. Pressure test the 9-%" casing to 3,500 psi for 5 minutes. PU drill pipe as needed. 4. ND diverter spool and NU and test casing/tubing head. NU BOPE and test rams @ 4,000 psi/250" psi, and annular to 2500 psi/250psi. 5. MU 8-%" drilling BHA with MWD/GR/RES/PWD and RIH to float collar. Pressure test the 9-%" casing to 3,500 psi for 30 minutes. 6. Drill shoe track and displace well to LSND drilling fluid. Drill new formation to 20-50' below 9-%" +% shoe and perform LOT. 7. Drill ahead to+/-200' and above the HRZ, circulate the well clean, weight up mud to 10.1 ppg. 8. Ensure mud weight of 10.1 ppg prior to drilling ahead in the Highland Fault and Kingak. Continues drilling to TD at the Top SAG. At TD, CBU, and condition hole as necessary to run 7" casing. 9. Pump out to top HRZ, return to bottom, CBU, TOH on elevators. 10. Change upper VBR casing rams to 7" casing rams and test. ' 11. RU and run 7" 26# L-80 VAM TOP casing to TD. Cement the 7" casing to 500' MD above the top of the Ma. 12. Pressure test the 7" casing to 4,000 psi for 30 minutes. 13. Confirm that the OA is open immediately and before freeze protecting. Freeze-protect the 9-%" x 7" . annulus, once the tail cement has reached 500 psi compressive strength. Ensure that the mud/diesel/brine in the OA is overbalanced to formation at the 9-%" shoe. 14. Change upper 7" casing rams to VBR casing rams and test. 15. PU 6-W drilling BHA build assembly and RIH to the landing collar. On top of the float collar re-test the casing to 3,500 psi for 30 minutes. 16. Displace the well to 9.2 ppg Flo-Pro SF fluid. Z-67i Permit Application Page 8 17. Drill out shoe and 20'-50' of new formation and perform the planned FIT. Drill ahead, per directional proposal and rig site geologist to landing point of build section. Circulate bottoms up, POOH for horizontal assembly. 18. Make up 6-'/8" horizontal drilling assembly. RIH and Drill ahead per the directional plan to TD. 19. Circulate bottom up, watch for indications of poor hole cleaning in this J-hook well profile, short trip, circulate and condition the hole. 20. Run a USIT log from 7" casing5114e to surface. 21. MU and run 4-W 12.6# 13CR VAM TOP liner to TD and cement to the top of lap. 22. Set liner hanger and liner top packer and displace well to clean seawater above the liner top. 23. A perf pill will be left in the 4-W liner. 24. POOH, L/D the liner running tool. 25. Pressure test casing and liner to 4,000 psi for 30 minutes. 26. RU DPC perf guns. RIH and perforate. Perf intervals to be supplied by Asset. 27. R/U and run a 4-'/2", 12.6#, 13CR, VAMTOP tubing completion with GLMS. Space out and land the -- tubing with tubing tail inserted into the liner tieback sleeve. 28. Make up tubing hanger per FMC Rep. Land the tubing hanger, and run in lock down screws. 29. Reverse circulate filtered seawater and corrosion inhibitor into the tubing x casing annulus. 30. Drop ball/rod and set packer and individually test the tubing and annulus to 3,500 psi for 30 minutes. Record each test. 31. Shear the DCR valve. 32. Install TWC and test. 33. Nipple down the BOPE. Nipple up the adaptor flange and tree and test to 5,000 psi with diesel. 34. RU DSM. Pull TWC. 35. RU circulating lines. Freeze protect the well to -2,200' TVD and allow diesel to U-tube reaching equilibrium. 36. Install a BPV. 37. Secure the well. Rig down and Move Off. Post-Rig Work: 1. MIRU slickline. Pull the ball and rod / RHC plug. 2. Install well-house and instrumentation and flowline. Z-67i Permit Application Page 9 Drilling Critical Issues POST THIS NOTICE IN THE DOGHOUSE I. Well Control: A. Normal pore pressures are expected throughout the surface hole drilling operations. B. There is some possible of encountering over pressure in the Shublik and in the Ivishak near Z-33 injector. II. Hydrates and Shallow gas: A. Free gas and/or gas hydrates may likely be present in the SV5 through the SV1 surface hole below the Permafrost base. Use standard operating procedures for hydrates, if encountered. IV. Faults Lost circulation at fault crossing possible in the Intermediate section. Follow normal monitor and mitigation procedures for losses while drilling. Formation Where MD Throw Encounter Fault Intersect tvdss Est. Throw Direction Uncertainty Highland Fault-Miluveach (DT)to Kingak(UT) 8,288 -7180 300-350' DTSW +/- 100' and V. Kick Tolerance/ Integrity Testing: A. The 9 5/8" casing will be cemented to surface using a port collar at 1000' if necessary. The 7" production casing will be cemented to 500' above the Ma but not closer than 1000' below the 9 /8" casing shoe. The 6-1/8" liner will be cemented to the top of the liner. Kick Tolerance/ Integrity Testing Summary Table Casing and Casing Maximum Influx Mud Exp Pore LOT/ Interval Test Volume Weight Press FIT Pressure 95/8" Surface 3500 psi 41 BBLS (assuming 10.1 9.2 LOT Casing 11 LOT) 7" Intermediate 3500 psi Infinite (assuming 9.2 8.6 FIT Liner 9.5 FIT) 61/8"" Production 4000 psi NA NA NA NA Casing VI. Lost Circulation / Breathing: A. Lost circulation potential when crossing the Highland Fault. No faults expected in the reservoir interval. Follow LCM decision tree; reduce mud weight slightly. B. Shublik losses and breathing are possible. Follow Shublik mitigation plan. VII. Broaching A. Monitor adjacent wells for broaching while drilling surface hole. Z-67i Permit Application Page 10 IX. Hydrogen Sulfide A. Typically 10-20 ppm H2S on Z-pad. This site should be treated as an H2S site with all the required precautions. Date of Well Name H2S Level Reading #1 Closest SHL Well H2S Level Z-10 30 ppm 11/29/2009 #2 Closest SHL Well H2S Level Z-35 20 ppm 8/17/2000 #1 Closest BHL Well H2S Level Z-01 b 24 ppm 8/9/2009 #2 Closest BHL Well H2S Level Z-33a N/A injector Max. Recorded H2S on Pad/Facility Z-11A 70 ppm 4/11/2009 Other Relevant H2S Data: Typically 10-20 ppm H2S on Z-pad. (H2S alarms from rigs, etc.) CONSULT THE Z PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION Z-67i Permit Application Page 11 Z-67i Area of Review The following eight wellbores are within the 1/4 mile radius for review in preparation for the Z-67i grassroots well. The primary cement jobs for each of the wellbore and the current well status are provided. 1) Z-33A— PWI. Last test 12/21/2010 = 14018 BWPD. a) Cemented 13-3/8" casing with 3684 cf PF, 93 cf Class `G' b) Cemented 9-5/8" casing with 2022 cf Class 'G' c) Uncemented 5-1/2" Slotted Liner from 9299" to 11650'. 2) HIGHLAND ST — Plugged and Abandoned a) Cemented 13-3/8" casing with 4750 sx PF II b) Cemented 9-5/8" casing with 300 sx PF II and 1300 sx Class 'G' c) Set 9-5/8" E-Z drill plug to 3000' 3) Z-33 — 1/9/1989 Plugged back for redrill (PB). Abandoned, was sidetracked to Z-33A. a) Cemented 13-3/8" with 3684 cf PF, 93 cf Class 'G' b) Cemented 9-5/8" with 2022 cf Class `G' 4) Z-01A — Plugged and Abandoned a) Cemented 13-3/8" casing with 3581 cu ft PF b) Cemented 9-5/8" casing with 2169 cu ft Class `G' c) Cemented 7" liner with 326 cu ft Class 'G' d) P&A with 21 bbls cement © 10400' MD 5) Z-01APB1 — Plugged and Abandoned a) Drilled to 11813' and cemented back to 10336' MD with 21 bbls Class 'G' 6) Z-01APB2- Plugged and Abandoned a) Drilled to 12325' and cemented back to 10336' MD with 21 bbls Class 'G' 7) Z-01APB3 — Plugged and Abandoned a) Drilled to 12240' and cemented back to 10336' MD with 21 bbls Class 'G' 8) Z-02 —Abandoned, but Z-02A is PWI, Last test 12/21/2010 = 2775 BWPD a) Cemented 13-3/8" casing with 3580 cf PF b) Cemented 9-5/8" casing with 1865 cf Class 'G' c) Cemented 7" casing with 325 cf Class `G' d) Abandonment Plug, 30 bbls 'G' @ 7534' MD e) KOP #1, 31 bbls 'G', sqzd 1300psi @ 7343' MD f) KOP #2, 31 bbls 'G', sqzd 1500psi @ 7287' MD g) Cemented Z-02A 7" casing with 195 sx Class `G' Z-67i Permit Application Page 12 TREE= 4-1/16"5K CNV WELLHEAD � = FMC PROPOSAL Z 67 ' 'rNOTES:4-1/2"CHROME TBG ACTTUATTORR= Electric � KB.ELEV= 94.2' BF.ELEV= 54.5' KOP= 400'MD/TVD Max Angle= 116° @11,179'MD Datum MD= 11,322'MD Datum TVD= 8,775'SS I I 2311 —41/2'XM?I=3813' 9-5/8"CSG,47#,L-80,ID=8.861" —I 3343' I. GAS LIFT MANDRELS ST ND ND DEV TYPE VLV :LATO-P PORT 4 TOC —I 4343' I I — 3 2 1 w, — 1 XXXX H4-1/2"X NIP,ID=3.813" . Z ?s 9510' I—Ir X 4-1/2"HES TNT PKR Minimum ID = 3.725" @ xxxx' 4-1/2" XN NIPPLE I I xxxx I-4-1/2"x NIP,ID=3.813" ' ' XXXX —14-1/2"XN NIP,ID=3.725" ' 9560' —14-1/2"WLEG,ID=3.958" 4-1/2"TBG, 12.6#, 13CR-85,0152 bpf, ID=3.958" — 9,560' k. 9,560' 1-17"X 5"BKR ZXP LTP,HMC LH I II' 7"CSG,26#,VAMTP,L-80,.0383 bpf,ID=6.276" H 9,710' 41 A PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2 7/8" 4 300' 4-1/2"LNR, 12.6#, 13CR-85,0152 bpf,ID=3.958" H 11,322' DATE REV BY COMMENTS DATE REV BY COMMENTS GPB West 05/12/10 TTH Initial DRAFT WELL: Z-67i PERMIT No: API No: BP Exploration (Alaska) J BP - Alaska Prudhoe Bay PB Z Pad Plan Z-67 Plan Z-67 Plan: Z-67 Wp 10.0 Standard Proposal Report 17 December, 2010 -1011111 HALLIBURTON Sperry Drilling Services N JJIm 75, O L )- C,, J O N Z E. n n (0.0. 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N J N $ 0 N0N1^n0N0a L N n Q + mom � L oWmWo - I- n00NnnnN 0 W 4-N4;SN4-N I CI o f 0 Nun CO 000NN0NNf I O 1-6O000o80 41. 0 mN4-mM TN `occ.ti b.,c2.6,' - Z JJ 101-.-..� N _= NV1,091-9 ON N I I NI I I I I I 1 1 1 NN I I I I 1 I I I I I I I I I I I 1 1 1 I 1 I I I I I I I I I I I I I I I I 1 1 I I I 1 I I I I i I 1 1 1 1 I 1 I I I I IN N O o O N 0 N p m p N 78WW g 0 O+ N OOO NN - N 0 N + (TAI 00(+)141-1o, (-)43noS I Sperry Drilling HALLI B U RTO N Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Project Prudhoe Bay,North Slope,UNITED STATES Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB Z Pad,TR-11-12 Site Position: Northing: 5,957,230.17 ft Latitude: 70°17'33.051 N From: Map Easting: 601,304.82ft Longitude: 149°10'47.37 W Position Uncertainty: 0.00 ft Slot Radius: 0" Grid Convergence: 0.77 ° Well Plan Z-67 Well Position +NI-S 0.00 ft Northing: 5,959,099.98 ft Latitude: 70°17'51.759 N +E/-W 0.00 ft Easting: 598,871.37 ft Longitude: 149°11'57.56 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 54.60 ft Wellbore Plan Z-67 Magnetics Model Name Sample Date Declination Dip Angle Field Strength r) r) (nT) BGGM2009 12/15/2010 21.67 80.89 57,692 Design Z-67 Wp 10.0 Audit Notes: Version: Phase: PLAN Tie On Depth: 39.60 Vertical Section: Depth From(TVD) +NI-S +E/-W Direction (ft) (ft) (ft) r) 39.60 0.00 0.00 223.29 Plan Sections Measured Vertical TVD Dogleg Build Turn Depth Inclination Azimuth Depth System +N/-S +E/-W Rate Rate Rate Tool Face (ft) (1 (1 (ft) ft (ft) (ft) (°1100ft) (°1100ft) (°/100ft) (°) 39.60 0.00 0.00 39.60 -54.60 0.00 0.00 0.00 0.00 0.00 0.00 400.00 0.00 180.00 400.00 305.80 0.00 0.00 0.00 0.00 0.00 180.00 500.00 1.50 180.00 499.99 405.79 -1.31 0.00 1.50 1.50 0.00 180.00 1,400.00 15.00 180.00 1,388.62 1,294.42 -130.15 0.00 1.50 1.50 0.00 0.00 2,776.38 35.90 253.70 2,648.91 2,554.71 -430.63 -399.41 2.50 1.52 5.35 95.14 7,104.35 35.90 253.70 6,154.65 6,060.45 -1,143.04 -2,835.32 0.00 0.00 0.00 0.00 8,357.37 19.50 125.00 7,328.53 7,234.33 -1,381.52 -3,029.14 4.00 -1.31 -10.27 -160.15 9,707.37 19.50 125.00 8,601.10 8,506.90 -1,640.00 -2,660.00 0.00 0.00 0.00 0.00 9,717.37 19.50 125.00 8,610.53 8,516.33 -1,641.91 -2,657.27 0.00 0.00 0.00 0.00 10,331.28 80.21 139.46 8,989.00 8,894.80 -1,961.78 -2,346.41 10.00 9.89 2.36 16.28 10,549.40 80.21 139.46 9,026.09 8,931.89 -2,125.13 -2,206.72 0.00 0.00 0.00 0.00 10,702.64 90.00 151.31 9,039.20 8,945.00 -2,250.48 -2,120.35 10.00 6.39 7.73 50.97 11,178.75 116.19 151.31 8,932.28 8,838.08 -2,653.76 -1,899.66 5.50 5.50 0.00 0.00 11,321.70 116.19 151.31 8,869.20 8,775.00 -2,766.29 -1,838.08 0.00 0.00 0.00 0.00 12/17/2010 2:22:34PM Page 2 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBIJRTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-5 +E/-W Northing Easting DLS Vert Section (ft) (°) (') (ft) ft (ft) (ft) (ft) (ft) -54.60 39.60 0.00 0.00 39.60 -54.60 0.00 0.00 5,959,099.98 598,871.37 0.00 0.00 100.00 0.00 180.00 100.00 5.80 0.00 0.00 5,959,099.98 598,871.37 0.00 0.00 200.00 0.00 180.00 200.00 105.80 0.00 0.00 5,959,099.98 598,871.37 0.00 0.00 300.00 0.00 180.00 300.00 205.80 0.00 0.00 5,959,099.98 598,871.37 0.00 0.00 359.20 0.00 180.00 359.20 265.00 0.00 0.00 5,959,099.98 598,871.37 0.00 0.00 G1 400.00 0.00 180.00 400.00 305.80 0.00 0.00 5,959,099.98 598,871.37 0.00 0.00 KOP Start Build 1.50°DLS 400.00'MD 500.00 1.50 180.00 499.99 405.79 -1.31 0.00 5,959,098.67 598,871.39 1.50 0.95 600.00 3.00 180.00 599.91 505.71 -5.23 0.00 5,959,094.75 598,871.44 1.50 3.81 700.00 4.50 180.00 699.69 605.49 -11.77 0.00 5,959,088.21 598,871.52 1.50 8.57 800.00 6.00 180.00 799.27 705.07 -20.92 0.00 5,959,079.06 598,871.65 1.50 15.23 900.00 7.50 180.00 898.57 804.37 -32.68 0.00 5,959,067.31 598,871.80 1.50 23.78 1,000.00 9.00 180.00 997.54 903.34 -47.03 0.00 5,959,052.96 598,871.99 1.50 34.23 1,100.00 10.50 180.00 1,096.09 1,001.89 -63.96 0.00 5,959,036.03 598,872.21 1.50 46.55 1,108.25 10.62 180.00 1,104.20 1,010.00 -65.47 0.00 5,959,034.52 598,872.23 1.50 47.65 SV6 1,200.00 12.00 180.00 1,194.16 1,099.96 -83.47 0.00 5,959,016.52 598,872.47 1.50 60.75 1,300.00 13.50 180.00 1,291.70 1,197.50 -105.54 0.00 5,958,994.46 598,872.76 1.50 76.82 1,400.00 15.00 180.00 1,388.62 1,294.42 -130.15 0.00 5,958,969.85 598,873.08 1.50 94.73 Increase Directional DLS 2.50 1400.00'MD 1,500.00 14.98 189.68 1,485.23 1,391.03 -155.84 -2.17 5,958,944.14 598,871.25 2.50 114.91 1,600.00 15.36 199.13 1,581.76 1,487.56 -181.10 -8.69 5,958,918.80 598,865.07 2.50 137.77 1,685.62 15.99 206.71 1,664.20 1,570.00 -202.35 -17.70 5,958,897.44 598,856.33 2.50 159.42 EOCU 1,700.00 16.12 207.92 1,678.02 1,583.82 -205.88 -19.53 5,958,893.88 598,854.55 2.50 163.24 1,763.79 16.77 213.06 1,739.20 1,645.00 -221.42 -28.70 5,958,878.22 598,845.59 2.50 180.83 SV5 1,800.00 17.20 215.79 1,773.84 1,679.64 -230.14 -34.68 5,958,869.42 598,839.73 2.50 191.29 1,894.92 18.48 222.33 1,864.20 1,770.00 -252.65 -53.02 5,958,846.68 598,821.69 2.50 220.24 SV4 1,900.00 18.55 222.66 1,869.02 1,774.82 -253.84 -54.11 5,958,845.48 598,820.61 2.50 221.85 1,910.75 18.71 223.34 1,879.20 1,785.00 -256.35 -56.45 5,958,842.94 598,818.30 2.50 225.29 BPRF 2,000.00 20.11 228.56 1,963.39 1,869.19 -276.92 -77.78 5,958,822.09 598,797.25 2.50 254.89 2,100.00 21.84 233.60 2,056.76 1,962.56 -299.34 -105.65 5,958,799.30 598,769.68 2.50 290.32 2,200.00 23.71 237.91 2,148.97 2,054.77 -321.06 -137.66 5,958,777.16 598,737.96 2.50 328.08 2,300.00 25.67 241.61 2,239.82 2,145.62 -342.05 -173.75 5,958,755.71 598,702.15 2.50 368.10 2,400.00 27.72 244.81 2,329.16 2,234.96 -362.25 -213.86 5,958,734.98 598,662.31 2.50 410.31 2,400.04 27.72 244.81 2,329.20 2,235.00 -362.26 -213.88 5,958,734.97 598,662.29 0.00 410.33 SV3 2,500.00 29.83 247.60 2,416.81 2,322.61 -381.63 -257.91 5,958,715.03 598,618.53 2.50 454.63 2,600.00 31.99 250.04 2,502.61 2,408.41 -400.15 -305.81 5,958,695.87 598,570.88 2.50 500.96 2,619.61 32.42 250.49 2,519.20 2,425.00 -403.68 -315.65 5,958,692.21 598,561.09 2.50 510.27 SV2 12/17/2010 2:22:34PM Page 3 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +NI-S +EI-W Northing Easting DLS Vert Section (ft) C) (°) (ft) ft (ft) (ft) (ft) (ft) 2,492.18 2,700.00 34.20 252.20 2,586.38 2,492.18 -417.79 -357.48 5,958,677.56 598,519.45 2.50 549.22 2,776.38 35.90 253.70 2,648.91 2,554.71 -430.64 -399.41 5,958,664.17 598,477.69 2.50 587.33 End Directional 2776.38'MD 2,800.00 35.90 253.70 2,668.04 2,573.84 -434.52 -412.70 5,958,660.10 598,464.45 0.00 599.27 2,900.00 35.90 253.70 2,749.05 2,654.85 -450.98 -468.99 5,958,642.91 598,408.40 0.00 649.85 3,000.00 35.90 253.70 2,830.05 2,735.85 -467.44 -525.27 5,958,625.71 598,352.34 0.00 700.43 3,005.13 35.90 253.70 2,834.20 2,740.00 -468.29 -528.16 5,958,624.83 598,349.47 0.00 703.02 SV1 3,100.00 35.90 253.70 2,911.05 2,816.85 -483.90 -581.55 5,958,608.51 598,296.28 0.00 751.00 3,200.00 35.90 253.70 2,992.05 2,897.85 -500.37 -637.84 5,958,591.31 598,240.23 0.00 801.58 3,300.00 35.90 253.70 3,073.05 2,978.85 -516.83 -694.12 5,958,574.11 598,184.17 0.00 852.16 3,343.00 35.90 253.70 3,107.88 3,013.68 -523.90 -718.32 5,958,566.72 598,160.07 0.00 873.90 9 5/8" 3,400.00 35.90 253.70 3,154.06 3,059.86 -533.29 -750.40 5,958,556.92 598,128.12 0.00 902.73 3,400.18 35.90 253.70 3,154.20 3,060.00 -533.32 -750.50 5,958,556.89 598,128.02 0.00 902.82 UG4 3,455.73 35.90 253.70 3,199.20 3,105.00 -542.46 -781.77 5,958,547.33 598,096.87 0.00 930.92 UG4A 3,500.00 35.90 253.70 3,235.06 3,140.86 -549.75 -806.68 5,958,539.72 598,072.06 0.00 953.31 3,600.00 35.90 253.70 3,316.06 3,221.86 -566.21 -862.97 5,958,522.52 598,016.00 0.00 1,003.89 3,700.00 35.90 253.70 3,397.06 3,302.86 -582.67 -919.25 5,958,505.32 597,959.95 0.00 1,054.46 3,800.00 35.90 253.70 3,478.06 3,383.86 -599.13 -975.53 5,958,488.12 597,903.89 0.00 1,105.04 3,807.58 35.90 253.70 3,484.20 3,390.00 -600.37 -979.80 5,958,486.82 597,899.64 0.00 1,108.87 UG3 3,900.00 35.90 253.70 3,559.06 3,464.86 -615.59 -1,031.82 5,958,470.93 597,847.83 0.00 1,155.62 4,000.00 35.90 253.70 3,640.07 3,545.87 -632.05 -1,088.10 5,958,453.73 597,791.78 0.00 1,206.19 4,100.00 35.90 253.70 3,721.07 3,626.87 -648.51 -1,144.38 5,958,436.53 597,735.72 0.00 1,256.77 4,200.00 35.90 253.70 3,802.07 3,707.87 -664.97 -1,200.66 5,958,419.33 597,679.66 0.00 1,307.35 4,300.00 35.90 253.70 3,883.07 3,788.87 -681.43 -1,256.95 5,958,402.13 597,623.61 0.00 1,357.92 4,400.00 35.90 253.70 3,964.07 3,869.87 -697.89 -1,313.23 5,958,384.94 597,567.55 0.00 1,408.50 4,424.85 35.90 253.70 3,984.20 3,890.00 -701.98 -1,327.21 5,958,380.66 597,553.62 0.00 1,421.06 UG1 4,500.00 35.90 253.70 4,045.08 3,950.88 -714.35 -1,369.51 5,958,367.74 597,511.49 0.00 1,459.07 4,600.00 35.90 253.70 4,126.08 4,031.88 -730.81 -1,425.80 5,958,350.54 597,455.44 0.00 1,509.65 4,700. 35.90 253.70 4,207.08 4,112.88 -747.27 -1,482.08 5,958,333.34 597,399.38 0.00 1,560.23 4 6 35.90 253.70 4,219.20 4,125.00 -749.73 -1,490.50 5,958,330.77 597,390.99 0.00 1,567.80 UG_Ma 4,776.69 35.90 253.70 4,269.20 4,175.00 -759.90 -1,525.24 5,958,320.15 597,356.39 0.00 1,599.01 U b1 4,800.00 35.90 253.70 4,288.08 4,193.88 -763.73 -1,538.36 5,958,316.14 597,343.33 0.00 1,610.80 4,869.28 35.90 253.70 4,344.20 4,250.00 -775.14 -1,577.35 5,958,304.23 597,304.49 0.00 1,645.84 UG_Mb2 4,900.00 35.90 253.70 4,369.08 4,274.88 -780.19 -1,594.64 5,958,298.95 597,287.27 0.00 1,661.38 4,986.56 35.90 253.70 4,439.20 4,345.00 -794.44 -1,643.36 5,958,284.06 597,238.75 0.00 1,705.16 UG Mc 12/17/2010 2:22:34PM Page 4 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Coordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +NI-S +EJ-W Northing Easting DLS Vert Section (ft) (*) (*) (ft) ft (ft) (ft) (ft) (ft) 4,355.88 5,000.00 35.90 253.70 4,450.08 4,355.88 -796.65 -1,650.93 5,958,281.75 597,231.21 0.00 1,711.96 5,085.33 35.90 253.70 4,519.20 4,425.00 -810.70 -1,698.95 5,958,267.07 597,183.38 0.00 1,755.11 SB_Na 5,100.00 35.90 253.70 4,531.09 4,436.89 -813.11 -1,707.21 5,958,264.55 597,175.16 0.00 1,762.53 5,116.19 35.90 253.70 4,544.20 4,450.00 -815.78 -1,716.32 5,958,261.77 597,166.08 0.00 1,770.72 SB_Nb 5,200.00 35.90 253.70 4,612.09 4,517.89 -829.57 -1,763.49 5,958,247.35 597,119.10 0.00 1,813.11 5,295.20 35.90 253.70 4,689.20 4,595.00 -845.24 -1,817.07 5,958,230.98 597,065.74 0.00 1,861.26 SB_OA 5,300.00 35.90 253.70 4,693.09 4,598.89 -846.03 -1,819.78 5,958,230.15 597,063.04 0.00 1,863.69 5,375.44 35.90 253.70 4,754.20 4,660.00 -858.45 -1,862.24 5,958,217.18 597,020.75 0.00 1,901.84 SB_OBa 5,400.00 35.90 253.70 4,774.09 4,679.89 -862.49 -1,876.06 5,958,212.96 597,006.99 0.00 1,914.26 5,412.48 35.90 253.70 4,784.20 4,690.00 -864.55 -1,883.08 5,958,210.81 596,999.99 0.00 1,920.57 SB_OBb 5,468.03 35.90 253.70 4,829.20 4,735.00 -873.69 -1,914.35 5,958,201.26 596,968.85 0.00 1,948.67 SB_OBc 5,500.00 35.90 253.70 4,855.09 4,760.89 -878.96 -1,932.34 5,958,195.76 596,950.93 0.00 1,964.84 5,535.93 35.90 253.70 4,884.20 4,790.00 -884.87 -1,952.56 5,958,189.58 596,930.79 0.00 1,983.01 SB_OBd 5,600.00 35.90 253.70 4,936.10 4,841.90 -895.42 -1,988.62 5,958,178.56 596,894.87 0.00 2,015.42 5,610.00 35.90 253.70 4,944.20 4,850.00 -897.06 -1,994.25 5,958,176.84 596,889.27 0.00 2,020.48 SB_OBe 5,665.56 35.90 253.70 4,989.20 4,895.00 -906.21 -2,025.52 5,958,167.29 596,858.12 0.00 2,048.57 SB_OBf 5,700.00 35.90 253.70 5,017.10 4,922.90 -911.88 -2,044.91 5,958,161.36 596,838.82 0.00 2,065.99 5,721.11 35.90 253.70 5,034.20 4,940.00 -915.35 -2,056.79 5,958,157.73 596,826.98 0.00 2,076.67 SB_OBf Base 5,800.00 35.90 253.70 5,098.10 5,003.90 -928.34 -2,101.19 5,958,144.16 596,782.76 0.00 2,116.57 5,900.00 35.90 253.70 5,179.10 5,084.90 -944.80 -2,157.47 5,958,126.97 596,726.71 0.00 2,167.14 6,000.00 35.90 253.70 5,260.10 5,165.90 -961.26 -2,213.75 5,958,109.77 596,670.65 0.00 2,217.72 6,100.00 35.90 253.70 5,341.11 5,246.91 -977.72 -2,270.04 5,958,092.57 596,614.59 0.00 2,268.30 6,109.99 35.90 253.70 5,349.20 5,255.00 -979.36 -2,275.66 5,958,090.85 596,608.99 0.00 2,273.35 CM-2 6,200.00 35.90 253.70 5,422.11 5,327.91 -994.18 -2,326.32 5,958,075.37 596,558.54 0.00 2,318.87 6,300.00 35.90 253.70 5,503.11 5,408.91 -1,010.64 -2,382.60 5,958,058.17 596,502.48 0.00 2,369.45 6,400.00 35.90 253.70 5,584.11 5,489.91 -1,027.10 -2,438.89 5,958,040.98 596,446.42 0.00 2,420.03 6,500.00 35.90 253.70 5,665.11 5,570.91 -1,043.56 -2,495.17 5,958,023.78 596,390.37 0.00 2,470.60 6,600.00 35.90 253.70 5,746.11 5,651.91 -1,060.02 -2,551.45 5,958,006.58 596,334.31 0.00 2,521.18 6,700.00 35.90 253.70 5,827.12 5,732.92 -1,076.48 -2,607.73 5,957,989.38 596,278.25 0.00 2,571.76 6,800.00 35.90 253.70 5,908.12 5,813.92 -1,092.94 -2,664.02 5,957,972.19 596,222.20 0.00 2,622.33 6,900.00 35.90 253.70 5,989.12 5,894.92 -1,109.40 -2,720.30 5,957,954.99 596,166.14 0.00 2,672.91 6,986.52 35.90 253.70 6,059.20 5,965.00 -1,123.64 -2,768.99 5,957,940.11 596,117.64 0.00 2,716.67 CM-1 7,000.00 35.90 253.70 6,070.12 5,975.92 -1,125.86 -2,776.58 5,957,937.79 596,110.08 0.00 2,723.49 12/17/2010 2:22:34PM Page 5 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) 1°) (°) (ft) ft (ft) (ft) (ft) (ft) 6,056.92 7,100.00 35.90 253.70 6,151.12 6,056.92 -1,142.32 -2,832.87 5,957,920.59 596,054.03 0.00 2,774.06 7,104.35 35.90 253.70 6,154.65 6,060.45 -1,143.04 -2,835.31 5,957,919.84 596,051.59 0.00 2,776.26 Start DLS 4.00 7104.35'MD 7,200.00 32.33 251.27 6,233.83 6,139.63 -1,159.13 -2,886.47 5,957,903.08 596,000.65 4.00 2,823.05 7,300.00 28.65 248.17 6,319.99 6,225.79 -1,176.64 -2,934.06 5,957,884.95 595,953.30 4.00 2,868.43 7,388.94 25.45 244.73 6,399.20 6,305.00 -1,192.73 -2,971.15 5,957,868.37 595,916.43 4.00 2,905.58 TLBK 7,400.00 25.06 244.24 6,409.20 6,315.00 -1,194.76 -2,975.41 5,957,866.28 595,912.20 4.00 2,909.98 7,500.00 21.61 239.14 6,501.02 6,406.82 -1,213.42 -3,010.30 5,957,847.17 595,877.56 4.00 2,947.48 7,599.16 18.39 232.33 6,594.20 6,500.00 -1,232.35 -3,038.36 5,957,827.88 595,849.76 4.00 2,980.51 THRZ 7,600.00 18.36 232.26 6,595.00 6,500.80 -1,232.51 -3,038.57 5,957,827.71 595,849.55 4.00 2,980.77 7,700.00 15.46 222.74 6,690.68 6,596.48 -1,251.95 -3,060.08 5,957,807.99 595,828.29 4.00 3,009.67 7,800.00 13.14 209.50 6,787.60 6,693.40 -1,271.64 -3,074.73 5,957,788.11 595,813.91 4.00 3,034.05 7,827.29 12.65 205.13 6,814.20 6,720.00 -1,277.05 -3,077.53 5,957,782.67 595,811.18 4.00 3,039.90 TKLB-K-1 7,885.61 11.86 194.76 6,871.20 6,777.00 -1,288.63 -3,081.77 5,957,771.04 595,807.10 4.00 3,051.23 TKC4 7,900.00 11.73 192.01 6,885.29 6,791.09 -1,291.49 -3,082.45 5,957,768.17 595,806.45 4.00 3,053.78 7,934.62 11.53 185.21 6,919.20 6,825.00 -1,298.38 -3,083.49 5,957,761.27 595,805.50 4.00 3,059.51 TKB/LCU 7,985.65 11.53 174.99 6,969.20 6,875.00 -1,308.53 -3,083.51 5,957,751.11 595,805.61 4.00 3,066.92 TKA5 8,000.00 11.59 172.14 6,983.26 6,889.06 -1,311.39 -3,083.19 5,957,748.26 595,805.97 4.00 3,068.78 8,011.17 11.66 169.95 6,994.20 6,900.00 -1,313.61 -3,082.84 5,957,746.04 595,806.35 4.00 3,070.15 TKA4 8,052.03 12.04 162.21 7,034.20 6,940.00 -1,321.74 -3,080.82 5,957,737.95 595,808.48 4.00 3,074.68 TMLV 8,100.00 12.75 153.88 7,081.05 6,986.85 -1,331.25 -3,076.96 5,957,728.48 595,812.46 4.00 3,078.96 8,200.00 14.91 139.72 7,178.18 7,083.98 -1,350.98 -3,063.78 5,957,708.93 595,825.90 4.00 3,084.28 8,300.00 17.71 129.50 7,274.16 7,179.96 -1,370.48 -3,043.72 5,957,689.70 595,846.21 4.00 3,084.72 8,300.04 17.71 129.50 7,274.20 7,180.00 -1,370.49 -3,043.71 5,957,689.69 595,846.22 0.00 3,084.72 TKNG 8,357.37 19.50 125.00 7,328.53 7,234.33 -1,381.52 -3,029.14 5,957,678.85 595,860.93 4.00 3,082.76 End Directional 8357.37'MD 8,400.00 19.50 125.00 7,368.72 7,274.52 -1,389.69 -3,017.48 5,957,670.84 595,872.70 0.00 3,080.71 8,500.00 19.50 125.00 7,462.98 7,368.78 -1,408.83 -2,990.14 5,957,652.06 595,900.29 0.00 3,075.89 8,600.00 19.50 125.00 7,557.25 7,463.05 -1,427.98 -2,962.80 5,957,633.28 595,927.88 0.00 3,071.07 8,700.00 19.50 125.00 7,651.51 7,557.31 -1,447.13 -2,935.45 5,957,614.49 595,955.47 0.00 3,066.26 8,709.22 19.50 125.00 7,660.20 7,566.00 -1,448.89 -2,932.93 5,957,612.76 595,958.01 0.00 3,065.81 TJF 8,800.00 19.50 125.00 7,745.78 7,651.58 -1,466.27 -2,908.11 5,957,595.71 595,983.06 0.00 3,061.44 8,900.00 19.50 125.00 7,840.04 7,745.84 -1,485.42 -2,880.77 5,957,576.93 596,010.65 0.00 3,056.63 8,974.43 19.50 125.00 7,910.20 7,816.00 -1,499.67 -2,860.41 5,957,562.95 596,031.19 0.00 3,053.04 TJE 9,000.00 19.50 125.00 7,934.30 7,840.10 -1,504.56 -2,853.42 5,957,558.14 596,038.24 0.00 3,051.81 12/17/2010 2:22:34PM Page 6 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +NI-8 +EI-W Northing Easting DLS Vert Section (ft) (°) (°) (ft) ft (ft) (ft) (ft) (ft) 7,934.37 9,100.00 19.50 125.00 8,028.57 7,934.37 -1,523.71 -2,826.08 5,957,539.36 596,065.83 0.00 3,047.00 9,197.21 19.50 125.00 8,120.20 8,026.00 -1,542.32 -2,799.50 5,957,521.10 596,092.65 0.00 3,042.32 TJD 9,200.00 19.50 125.00 8,122.83 8,028.63 -1,542.86 -2,798.73 5,957,520.58 596,093.42 0.00 3,042.18 9,300.00 19.50 125.00 8,217.10 8,122.90 -1,562.00 -2,771.39 5,957,501.79 596,121.01 0.00 3,037.37 9,400.00 19.50 125.00 8,311.36 8,217.16 -1,581.15 -2,744.05 5,957,483.01 596,148.61 0.00 3,032.55 9,443.32 19.50 125.00 8,352.20 8,258.00 -1,589.44 -2,732.20 5,957,474.87 596,160.56 0.00 3,030.46 TJC 9,500.00 19.50 125.00 8,405.63 8,311.43 -1,600.30 -2,716.70 5,957,464.23 596,176.20 0.00 3,027.73 9,568.50 19.50 125.00 8,470.20 8,376.00 -1,613.41 -2,697.97 5,957,451.36 596,195.10 0.00 3,024.44 TJB 9,600.00 19.50 125.00 8,499.89 8,405.69 -1,619.44 -2,689.36 5,957,445.44 596,203.79 0.00 3,022.92 9,630.03 19.50 125.00 8,528.20 8,434.00 -1,625.19 -2,681.15 5,957,439.80 596,212.07 0.00 3,021.47 TJA 9,700.00 19.50 125.00 8,594.15 8,499.95 -1,638.59 -2,662.01 5,957,426.66 596,231.38 0.00 3,018.10 9,707.37 19.50 125.00 8,601.10 8,506.90 -1,640.00 -2,660.00 5,957,425.28 596,233.41 0.00 3,017.75 9,710.66 19.50 125.00 8,604.20 8,510.00 -1,640.63 -2,659.10 5,957,424.66 596,234.32 0.00 3,017.59 TSGR-7" •717.37 19.50 125.00 8,610.53 8,516.33 -1,641.91 -2,657.27 5,957,423.40 596,236.17 0.00 3,017.27 Start DLS 10.00 9717.37'MD 9,743.76 22.05 126.97 8,635.20 8,541.00 -1,647.42 -2,649.70 5,957,417.99 596,243.81 10.00 3,016.09 TSHA 9,800.00 27.53 130.00 8,686.24 8,592.04 -1,662.13 -2,631.30 5,957,403.52 596,262.40 10.00 3,014.17 9,813.57 28.86 130.57 8,698.20 8,604.00 -1,666.28 -2,626.41 5,957,399.44 596,267.34 10.00 3,013.84 TSHB 9,837.83 31.24 131.48 8,719.20 8,625.00 -1,674.25 -2,617.25 5,957,391.59 596,276.61 10.00 3,013.36 TSHC 9,860.32 33.45 132.21 8,738.20 8,644.00 -1,682.28 -2,608.28 5,957,383.68 596,285.67 10.00 3,013.06 TSHD 9,876.04 35.00 132.68 8,751.20 8,657.00 -1,688.25 -2,601.76 5,957,377.80 596,292.28 10.00 3,012.93 TEIL 9,900.00 37.37 133.32 8,770.53 8,676.33 -1,697.90 -2,591.42 5,957,368.29 596,302.74 10.00 3,012.86 9,923.87 39.73 133.90 8,789.20 8,695.00 -1,708.16 -2,580.65 5,957,358.17 596,313.64 10.00 3,012.94 TSAD(46P) 9,953.10 42.62 134.53 8,811.20 8,717.00 -1,721.58 -2,566.86 5,957,344.93 596,327.61 10.00 3,013.26 45N 9,958.56 43.16 134.64 8,815.20 8,721.00 -1,724.19 -2,564.21 5,957,342.36 596,330.29 10.00 3,013.34 45P 9,995.33 46.81 135.33 8,841.20 8,747.00 -1,742.56 -2,545.84 5,957,324.23 596,348.90 10.00 3,014.11 44N 10,000.00 47.27 135.41 8,844.39 8,750.19 -1,745.00 -2,543.44 5,957,321.83 596,351.34 10.00 3,014.24 10,001.20 47.39 135.43 8,845.20 8,751.00 -1,745.63 -2,542.81 5,957,321.21 596,351.97 10.00 3,014.27 44P 10,019.24 49.18 135.74 8,857.20 8,763.00 -1,755.24 -2,533.39 5,957,311.72 596,361.51 10.00 3,014.81 43N 12/17/2010 2:22:34PM Page 7 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (°) 1°) (ft) ft (ft) (ft) (ft) (ft) 8,772.00 10,033.20 50.56 135.96 8,866.20 8,772.00 -1,762.90 -2,525.96 5,957,304.16 596,369.05 10.00 3,015.28 43P 10,045.97 51.83 136.16 8,874.20 8,780.00 -1,770.07 -2,519.05 5,957,297.08 596,376.04 10.00 3,015.76 GOC 10,054.13 52.64 136.28 8,879.20 8,785.00 -1,774.73 -2,514.59 5,957,292.48 596,380.57 10.00 3,016.09 43N 10,059.10 53.14 136.35 8,882.20 8,788.00 -1,777.60 -2,511.85 5,957,289.65 596,383.35 10.00 3,016.30 42P 10,070.94 54.31 136.52 8,889.20 8,795.00 -1,784.51 -2,505.28 5,957,282.83 596,390.01 10.00 3,016.82 42N 10,074.38 54.65 136.57 8,891.20 8,797.00 -1,786.54 -2,503.35 5,957,280.82 596,391.96 10.00 3,016.98 42P 10,079.60 55.17 136.64 8,894.20 8,800.00 -1,789.64 -2,500.41 5,957,277.76 596,394.94 10.00 3,017.23 GOC 10,100.00 57.20 136.92 8,905.55 8,811.35 -1,802.00 -2,488.81 5,957,265.56 596,406.70 10.00 3,018.26 10,128.11 59.99 137.28 8,920.20 8,826.00 -1,819.57 -2,472.48 5,957,248.20 596,423.26 10.00 3,019.85 41N 10,146.63 61.83 137.51 8,929.20 8,835.00 -1,831.48 -2,461.52 5,957,236.44 596,434.37 10.00 3,021.01 41N 10,164.07 63.57 137.72 8,937.20 8,843.00 -1,842.93 -2,451.07 5,957,225.13 596,444.97 10.00 3,022.18 41P 10,175.54 64.71 137.85 8,942.20 8,848.00 -1,850.57 -2,444.14 5,957,217.58 596,452.00 10.00 3,022.99 41P 10,200.00 67.14 138.12 8,952.18 8,857.98 -1,867.17 -2,429.19 5,957,201.18 596,467.17 10.00 3,024.81 10,230.28 70.16 138.45 8,963.20 8,869.00 -1,888.21 -2,410.43 5,957,180.39 596,486.20 10.00 3,027.27 31N 10,245.57 71.68 138.61 8,968.20 8,874.00 -1,899.04 -2,400.86 5,957,169.69 596,495.91 10.00 3,028.59 31P 10,262.20 73.33 138.78 8,973.20 8,879.00 -1,910.96 -2,390.39 5,957,157.91 596,506.54 10.00 3,030.08 31N 10,284.58 75.56 139.01 8,979.20 8,885.00 -1,927.20 -2,376.22 5,957,141.86 596,520.92 10.00 3,032.18 31P 10,300.00 77.09 139.16 8,982.84 8,888.64 -1,938.52 -2,366.41 5,957,130.67 596,530.88 10.00 3,033.69 10,331.28 80.21 139.46 8,989.00 8,894.80 -1,961.78 -2,346.42 5,957,107.68 596,551.17 10.00 3,036.91 End Directional 10331.28'MD 10,400.00 80.21 139.46 9,000.69 8,906.49 -2,013.24 -2,302.40 5,957,056.80 596,595.86 0.00 3,044.19 10,420.67 80.21 139.46 9,004.20 8,910.00 -2,028.72 -2,289.17 5,957,041.50 596,609.29 0.00 3,046.37 OWC(<8ohms)-OWC(<8ohms) 10,500.00 80.21 139.46 9,017.69 8,923.49 -2,088.14 -2,238.36 5,956,982.76 596,660.88 0.00 3,054.78 10,508.87 80.21 139.46 9,019.20 8,925.00 -2,094.78 -2,232.67 5,956,976.20 596,666.64 0.00 3,055.72 27N 10,514.75 80.21 139.46 9,020.20 8,926.00 -2,099.19 -2,228.91 5,956,971.84 596,670.47 0.00 3,056.34 27P 10,538.27 80.21 139.46 9,024.20 8,930.00 -2,116.80 -2,213.84 5,956,954.43 596,685.76 0.00 3,058.83 27N-27P 12/17/2010 2:22:34PM Page 8 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTONI Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +NI-S +E/-W Northing Easting DLS Vert Section (ft) (°) (°) (ft) ft (ft) (ft) (ft) (ft) 8,931.89 10,549.40 80.21 139.46 9,026.09 8,931.89 -2,125.13 -2,206.72 5,956,946.19 596,693.00 0.00 3,060.01 Begin Directional DLS 10.00 10549A0'MD 10,600.00 83.42 143.42 9,033.30 8,939.10 -2,164.29 -2,175.52 5,956,907.45 596,724.71 10.00 3,067.11 10,700.00 89.83 151.11 9,039.20 8,945.00 -2,248.16 -2,121.62 5,956,824.30 596,779.70 10.00 3,091.20 10,702.64 90.00 151.31 9,039.20 8,945.00 -2,250.48 -2,120.35 5,956,822.00 596,781.00 9.99 3,092.01 Decrease DLS 5.50 10702.64'MD-Z-67 Tgt 2 10,800.00 95.35 151.31 9,034.65 8,940.45 -2,335.76 -2,073.68 5,956,737.35 596,828.78 5.50 3,122.08 10,900.00 100.85 151.31 9,020.56 8,926.36 -2,422.58 -2,026.17 5,956,651.17 596,877.42 5.50 3,152.69 11,000.00 106.35 151.31 8,997.05 8,902.85 -2,507.81 -1,979.53 5,956,566.57 596,925.18 5.50 3,182.74 11,100.00 111.85 151.31 8,964.33 8,870.13 -2,590.67 -1,934.19 5,956,484.32 596,971.60 5.50 3,211.95 11,178.75 116.19 151.31 8,932.28 8,838.08 -2,653.75 -1,899.67 5,956,421.70 597,006.95 5.50 3,234.19 End Directional 11178.75'MD 11,200.00 116.19 151.31 8,922.91 8,828.71 -2,670.48 -1,890.51 5,956,405.10 597,016.32 0.00 3,240.09 11,300.00 116.19 151.31 8,878.78 8,784.58 -2,749.20 -1,847.43 5,956,326.96 597,060.43 0.00 3,267.85 11,321.70 116.19 151.31 8,869.20 8,775.00 -2,766.28 -1,838.08 5,956,310.00 597,070.00 0.00 3,273.87 TD at 11321.70'MD-4.1/2"-Z-67 Tgt 3 12/17/2010 2:22:34PM Page 9 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska ND Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Targets Target Name -hit/miss target Dip Angle Dip Dir. ND +N1-S +EI-W Northing Easting -Shape r) (°) (ft) (ft) (ft) (ft) (ft) Z-67 Tgt 1 0.00 0.00 8,869.20 -1,797.07 -2,525.45 5,957,270.00 596,370.00 -plan misses target center by 26.77ft at 10055.00ft MD(8879.73 TVD,-1775.23 N,-2514.11 E) -Point Z-67 Hard Line 2 0.00 0.00 0.00 -2,330.73 -1,798.35 5,956,746.00 597,104.00 -plan misses target center by 2944.13ft at 39.60ft MD(39.60 TVD,0.00 N,0.00 E) -Polygon Point 1 0.00 -2,330.73 -1,798.35 5,956,746.00 597,104.00 Point2 0.00 -3,068.30 -1,613.02 5,956,011.00 597,299.00 Z-67 Tgt 2 0.00 0.00 9,039.20 -2,250.48 -2,120.35 5,956,822.00 596,781.00 -plan hits target center -Point Z-67 Tgt Poly 0.00 0.00 8,869.20 -1,797.07 -2,525.45 5,957,270.00 596,370.00 -plan misses target center by 26.77ft at 10055.00ft MD(8879.73 TVD,-1775.23 N,-2514.11 E) -Polygon Point 1 8,869.20 -1,788.32 -2,734.37 5,957,276.00 596,161.00 Point 2 8,869.20 -1,603.48 -2,567.91 5,957,463.00 596,325.00 Point 3 8,869.20 -1,919.11 -2,220.00 5,957,152.00 596,677.00 Point4 8,869.20 -2,125.53 -2,038.69 5,956,948.00 596,861.00 Point 5 8,869.20 -2,347.49 -1,892.58 5,956,728.00 597,010.00 Point6 8,869.20 -2,747.14 -1,696.80 5,956,331.00 597,211.00 Point 7 8,869.20 -3,009.41 -1,755.26 5,956,068.00 597,156.00 Point 8 8,869.20 -2,905.12 -1,851.91 5,956,171.00 597,058.00 Point 9 8,869.20 -2,709.82 -2,024.37 5,956,364.00 596,883.00 Point 10 8,869.20 -2,348.31 -2,210.65 5,956,723.00 596,692.00 Point 11 8,869.20 -2,092.37 -2,430.32 5,956,976.00 596,469.00 Point 12 8,869.20 -1,788.32 -2,734.37 5,957,276.00 596,161.00 Z-67 Tgt 3 0.00 0.00 8,869.20 -2,766.29 -1,838.08 5,956,310.00 597,070.00 -plan hits target center -Point Z-67 Hard Line 1 0.00 0.00 0.00 -1,755.99 -2,758.95 5,957,308.00 596,136.00 -plan misses target center by 3270.61 ft at 39.60ft MD(39.60 TVD,0.00 N,0.00 E) -Polygon Point 1 0.00 -1,755.99 -2,758.95 5,957,308.00 596,136.00 Point 2 0.00 -2,128.82 -2,548.82 5,956,938.00 596,351.00 Point 3 0.00 -2,713.81 -2,025.42 5,956,360.00 596,882.00 Point 4 0.00 -2,934.39 -1,832.29 5,956,142.00 597,078.00 Points 0.00 -3,014.43 -1,754.33 5,956,063.00 597,157.00 Point 6 0.00 -2,934.39 -1,832.29 5,956,142.00 597,078.00 Point 7 0.00 -2,713.81 -2,025.42 5,956,360.00 596,882.00 Point 8 0.00 -2,128.82 -2,548.82 5,956,938.00 596,351.00 Z-67 Fault 1 0.00 0.00 7,314.20 -1,269.57 -3,088.61 5,957,790.00 595,800.00 -plan misses target center by 117.21ft at 8307.11ft MD(7280.93 TVD,-1371.86 N,-3042.03 E) -Polygon Point 1 7,314.20 -1,269.57 -3,088.61 5,957,790.00 595,800.00 Point 2 7,314.20 -1,392.77 -3,075.23 5,957,667.00 595,815.00 Point 3 7,314.20 -1,540.10 -3,052.16 5,957,520.00 595,840.00 Point4 7,314.20 -1,392.77 -3,075.23 5,957,667.00 595,815.00 12/17/2010 2:22:34PM Page 10 COMPASS 2003.16 Build 73 Sperry Drilling IIALLIBLiRTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (") (') 3,343.00 3,107.88 9 5/8" 9-5/8 12-1/4 9,710.66 8,604.20 7" 7 8-1/2 11,321.70 8,869.20 4-1/2" 4-1/2 6-1/8 12/17/2010 2:22:34PM Page 11 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 Formations Measured Vertical Vertical Dip Depth Depth Depth SS Dip Direction (ft) (ft) ft Name Lithology (°) (1 10,059.10 8,882.20 42P 8,974.43 7,910.20 TJE 9,923.87 8,789.20 TSAD(46P) 9,860.32 8,738.20 TSHD 10,175.54 8,942.20 41P 10,230.28 8,963.20 31N 10,164.07 8,937.20 41P 5,610.00 4,944.20 SB_OBe 10,054.13 8,879.20 43N 4,986.56 4,439.20 UG_Mc 8,011.17 6,994.20 TKA4 1,910.75 1,879.20 BPRF 10,070.94 8,889.20 42N 5,468.03 4,829.20 SB_OBc 7,885.61 6,871.20 TKC4 7,388.94 6,399.20 TLBK 4,869.28 4,344.20 UG_Mb2 9,876.04 8,751.20 TEIL 7,827.29 6,814.20 TKLB 9,953.10 8,811.20 45N 10,245.57 8,968.20 31P 10,262.20 8,973.20 31N 10,284.58 8,979.20 31P 5,721.11 5,034.20 SB_OBf_Base 3,807.58 3,484.20 UG3 10,128.11 8,920.20 41N 3,400.18 3,154.20 UG4 10,514.75 9,020.20 27P 9,443.32 8,352.20 TJC 1,894.92 1,864.20 SV4 9,630.03 8,528.20 TJA 2,400.04 2,329.20 SV3 8,709.22 7,660.20 TJF 5,295.20 4,689.20 SB_OA 6,986.52 6,059.20 CM-1 1,108.25 1,104.20 SV6 7,985.65 6,969.20 TKA5 10,079.60 8,894.20 GOC 9,743.76 8,635.20 TSHA 7,599.16 6,594.20 THRZ 5,085.33 4,519.20 SB_Na 5,375.44 4,754.20 SB_OBa 9,568.50 8,470.20 TJB 6,109.99 5,349.20 CM-2 10,146.63 8,929.20 41N 10,538.27 9,024.20 27N 3,455.73 3,199.20 UG4A 9,813.57 8,698.20 TSHB 12/17/2010 2:22:34PM Page 12 COMPASS 2003.16 Build 73 Sperry Drilling HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well Plan Z-67 Company: BP-Alaska TVD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Project: Prudhoe Bay MD Reference: Z-67 D-25 @ 94.20ft(D-25 39.6"+54'.6"GL) Site: PB Z Pad North Reference: True Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Wellbore: Plan Z-67 Design: Z-67 Wp 10.0 10,420.67 9,004.20 OWC(<8ohms) 10,045.97 8,874.20 GOC 9,958.56 8,815.20 45P 5,412.48 4,784.20 SB_OBb 10,033.20 8,866.20 43P 10,508.87 9,019.20 27N 4,776.69 4,269.20 UG_Mb1 9,710.66 8,604.20 TSGR 7,934.62 6,919.20 TKB/LCU 5,665.56 4,989.20 SB_OBf 4,424.85 3,984.20 UG1 10,001.20 8,845.20 44P 8,052.03 7,034.20 TMLV 10,074.38 8,891.20 42P 5,116.19 4,544.20 SB_Nb 2,619.61 2,519.20 SV2 7,827.29 6,814.20 K-1 10,420.67 9,004.20 OWC(<8ohms) 10,019.24 8,857.20 43N 5,535.93 4,884.20 SB_OBd 8,300.04 7,274.20 TKNG 9,995.33 8,841.20 44N 1,685.62 1,664.20 EOCU 9,837.83 8,719.20 TSHC 10,538.27 9,024.20 27P 1,763.79 1,739.20 SV5 4,714.96 4,219.20 UG_Ma 3,005.13 2,834.20 SV1 9,197.21 8,120.20 TJD 359.20 359.20 G1 Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (ft) (ft) (ft) (ft) Comment 400.00 400.00 0.00 0.00 KOP Start Build 1.50°DLS 400.00'MD 1,400.00 1,388.62 -1.31 0.00 Increase Directional DLS 2.50 1400.00'MD 2,776.38 2,648.91 -130.15 0.00 End Directional 2776.38'MD 7,104.35 6,154.65 -430.63 -399.41 Start DLS 4.00 7104.35'MD 8,357.37 7,328.53 -1,143.04 -2,835.32 End Directional 8357.37'MD 9,717.37 8,610.53 -1,381.52 -3,029.14 Start DLS 10.00 9717.37'MD 10,331.28 8,989.00 -1,640.00 -2,660.00 End Directional 10331.28'MD 10,549.40 9,026.09 -1,641.91 -2,657.27 Begin Directional DLS 10.00 10549.40'MD 10,702.64 9,039.20 -1,961.78 -2,346.41 Decrease DLS 5.50 10702.64'MD 11,178.75 8,932.28 -2,125.13 -2,206.72 End Directional 11178.75'MD 11,321.70 8,869.20 -2,250.48 -2,120.35 TD at 11321.70'MD 12/17/2010 2:22:34PM Page 13 COMPASS 2003.16 Build 73 0- CO Q 00) UdL 0 O) 5 N __________________DUNUcU = oaod 0 wo N OOpmpp 0rN mmco j3 < W EO ct U0l >Onme^. 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P. oaio Mto 0 OM.-Mm 4 L Cl I N°' BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan Z-67 Project: Prudhoe Bay ND Reference: Z-67 D-25 @ 94.20ft(39.6"KB+54.6"GL) Reference Site: PB Z Pad MD Reference: Z-67 D-25©94.20ft(39.6"KB+54.6"GL) Site Error: 0.00ft North Reference: True Reference Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-67 Database: EDM.16-ANC Prod-WH24P Reference Design: Z-67 Wp 10 Offset ND Reference: Offset Datum Reference Z-67 Wp 10 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of reference Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,328.21ft Error Surface: Elliptical Conic Survey Tool Program Date 12/17/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 39.60 1,000.00 Z-67 Wp 10(Plan Z-67) GYD-GC-SS Gyrodata gyro single shots 1,000.00 3,343.00 Z-67 Wp 10(Plan Z-67) MWD+IFR+MS MWD+IFR+Multi Station 3,343.00 9,699.00 Z-67 Wp 10(Plan Z-67) MWD+IFR+MS MWD+IFR+Multi Station 9,699.00 11,321.70 Z-67 Wp 10(Plan Z-67) MWD+IFR+MS MWD+IFR+Multi Station 12/17/2010 10:09:06AM Page 2 of 4 COMPASS 2003.16 Build 73 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan Z-67 Project: Prudhoe Bay ND Reference: Z-67 D-25 @ 94.20ft(39.6"KB+54.6"GL) Reference Site: PB Z Pad MD Reference: Z-67 D-25 @ 94.20ft(39.6"KB+54.6"GL) Site Error: 0.00ft North Reference: True Reference Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Well Error: O.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-67 Database: EDM.16-ANC Prod-WH24P Reference Design: Z-67 Wp 10 Offset ND Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB Z Pad Plan Z-401 (33-35)-Plan Z-401-Plan#2 1,034.18 1,075.00 241.51 19.68 222.08 Pass-Major Risk Z-01-Z-01 A-Z-01 A 900.00 900.00 350.10 17.07 333.03 Pass-Major Risk Z-01-Z-01APB1-Z-01APB1 900.00 900.00 350.10 17.33 332.78 Pass-Major Risk Z-01-Z-01 APB2-Z-01APB2 900.00 900.00 350.10 17.33 332.78 Pass-Major Risk Z-02-Z-02-Z-02 801.29 800.00 316.75 15.21 301.53 Pass-Major Risk Z-03-Z-03-Z-03 285.43 275.00 282.28 4.90 277.39 Pass-Major Risk Z-03-Z-03A-Z-03A 285.43 275.00 282.28 4.90 277.39 Pass-Major Risk Z-04-Z-04-Z-04 946.69 950.00 247.45 14.98 232.47 Pass-Major Risk Z-04-Z-04A-Plan#6 931.04 925.00 247.09 14.64 232.45 Pass-Major Risk Z-04-Z-04A-Z-04A 931.04 925.00 247.09 14.64 232.45 Pass-Major Risk Z-05-Plan#3 Z-05APB1-Plan#3 800.54 800.00 210.21 12.78 197.43 Pass-Major Risk Z-05-Plan#4 Z-05A-Plan#4 800.54 800.00 210.21 12.78 197.43 Pass-Major Risk Z-05-Z-05-Z-05 800.54 800.00 210.21 12.73 197.48 Pass-Major Risk Z-06-Plan Z-06A-Plan#8 Z-06A 834.42 825.00 176.18 12.85 163.36 Pass-Major Risk Z-06-Z-06-Z-06 825.68 825.00 176.06 12.57 163.51 Pass-Major Risk Z-07-Z-07-Z-07 804.36 800.00 143.08 13.90 129.18 Pass-Major Risk Z-07A-Z-07A-Z-07A 804.36 800.00 143.08 13.90 129.18 Pass-Major Risk Z-08-Z-08-Z-08 903.92 900.00 101.26 17.07 84.19 Pass-Major Risk Z-08A-Z-08A-Z-08A 903.92 900.00 101.26 17.07 84.19 Pass-Major Risk Z-09-Z-09-Z-09 675.01 675.00 71.66 13.14 58.52 Pass-Major Risk Z-09-Z-09A-Plan#16 Z-09A kop 9780 683.47 675.00 71.79 13.38 58.41 Pass-Major Risk Z-09-Z-09A-Z-09A 683.47 675.00 71.79 13.23 58.57 Pass-Major Risk Z-09_DIMS-Z-09-Z-09 94.20 94.20 69.73 1.58 68.16 Pass-Major Risk Z-09_DIMS-Z-09-Z-09 94.20 94.20 69.73 1.58 68.16 Pass-Major Risk Z-09_DIMS-Z-09A-Z-09A 94.20 94.20 69.73 1.58 68.16 Pass-Major Risk Z-10-Z-10-Z-10 725.84 725.00 35.49 14.68 20.83 Pass-Major Risk Z-10-Z-10A WPS-Z-10A Wp03 732.14 725.00 35.62 14.71 20.92 Pass-Major Risk Z-108-Plan Z-108A v5-Plan#2 Z-108A 1,039.34 1,025.00 226.03 18.17 207.87 Pass-Major Risk Z-108-Plan Z-108APB1 v5-Plan#2 Z-108APB1 1,039.34 1,025.00 226.03 18.17 207.87 Pass-Major Risk Z-108-Z-108-Z-108 1,039.34 1,025.00 226.03 18.17 207.87 Pass-Major Risk Z-112-Z-112-Z-112 1,036.73 1,025.00 194.67 21.12 173.55 Pass-Major Risk Z-112-Z-112PB1-Z-112PB1 1,036.73 1,025.00 194.67 21.12 173.55 Pass-Major Risk Z-112-Z-112PB2-Z-112PB2 1,036.73 1,025.00 194.67 21.12 173.55 Pass-Major Risk Z-33-Plan Z-33B-Plan#1 10,900.88 10,675.00 210.46 133.14 90.65 Pass-Major Risk Z-33-Z-33-Z-33 449.25 450.00 269.34 7.35 261.99 Pass-Major Risk Z-33-Z-33A-Z-33A 11,314.48 10,425.00 125.30 142.15 38.82 Pass-Major Risk Z-35-Z-35-Z-35 609.30 600.00 38.59 9.66 28.97 Pass-Major Risk Z-35-Z-35PB1-Z-35PB1 609.30 600.00 38.59 9.66 28.97 Pass-Major Risk Z-38-Z-38-Z-38 733.81 725.00 139.43 11.57 127.90 Pass-Major Risk Z-38PB1-Z-38PB1-Z-38PB1 733.81 725.00 139.43 11.57 127.90 Pass-Major Risk PB Z Pad-Expansion v6 2010 Plan Ivi Z-50(SA)v6-Plan Z-50-Plan#7 Z-50 v6 10,113.87 11,161.20 659.79 100.50 568.23 Pass-Major Risk Plan lvi Z-65(SE)v6-Plan Z-65-Plan#7 Z-65 v6 11,320.57 9,850.00 863.32 95.71 770.21 Pass-Major Risk Plan Ivi Z-66(SC)v6-Plan Z-66-Plan#6 Z-66 v6 2,518.31 2,875.00 487.02 53.13 446.35 Pass-Major Risk Plan lvi Z-70(SF)v6-Plan Z-70-Plan#4 Z-70 v6 3,591.47 4,075.00 121.65 93.29 29.12 Pass-Major Risk 12/17/2010 10:09:06AM Page 3 of 4 COMPASS 2003.16 Build 73 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan Z-67 Project: Prudhoe Bay TVD Reference: Z-67 D-25 @ 94.20ft(39.6"KB+54.6"GL) Reference Site: PB Z Pad MD Reference: Z-67 D-25 @ 94.20ft(39.6"KB+54.6"GL) Site Error: 0.00ft North Reference: True Reference Well: Plan Z-67 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-67 Database: EDM.16-ANC Prod-WH24P Reference Design: Z-67 Wp 10 Offset TVD Reference: Offset Datum Reference Depths are relative to Z-67 D-25 @ 94.20ft(39.6"KB+ Coordinates are relative to:Plan Z-67 Offset Depths are relative to Offset Datum Coordinate System is US State Plane 1927(Exact solution),Alaska Zone 04 Central Meridian is 150°0'0.000 W° Grid Convergence at Surface is:0.75° Ladder , Plot I 1 1400- f _- .__L- I I I I • _ I I , ; % i I JI.. . .__ , .. 1050- , . 'n Ilipr sr I ei' ' ' . .el I c -' . :: ;ii I , ._. _ , m ru a) 0) 700- 1 - . - _ 1 al j.Y[ o I i.3y,,9 ir,�^/ ' Ar iJ. C) ��ifti i0 ;" li ' o ..,/ , f" _ 1 I I 0 ! I I I I I 0 2000 4000 L E GegiQQ D 8000 10000 12000 Measured Depth(2000 ft/in) 7-01,Z-01A,Z01AV4 Plan lvi Z-70(SF)v6,Plan Z-70,Plan#4 Z-70 v6 VO Z-02,Z-02,Z-02 V3 7-01,Z-01APB1,Z-01APB1V6 Z-07,Z-07,Z-07 V1 -f Z38PB1,Z-38PB1,Z38PB1V3 7-01,Z-01APB2,Z-01APB2 V5 -I- Plan lviZ-66(SC)v6,Plan Z-66,Plan#6Z-66 v6 VO $ Z-04,Z04A,Plan#6V1 7-09_DIMS,Z-09A,Z-09AV0 -f?- Z-08,Z-08,Z-08 V1 -1- Z-04,Z-04A,Z-04AV10 7-09_DIMS,Z-09,Z-09VO Z-08A,Z-08A,Z-08AV1 -9- Z-04,Z-04,Z-04 V7 7-09_DIMS,Z-09,Z-09VO Plan Z-401(33-35),Plan Z-401,Plan#2 V1 -e- Z-03,Z-03A,Z-03AVO 7-09,Z-09,Z-09 V4 -$- Z-108,Plan Z-108Av5,Plan#2 Z-108AV1 Z-03,Z-03,Z-03 V4 7-09,Z-09A,Plan#16 Z-09A kop 9780 V1 Z-108,Z-108,Z-108V5 -X- Z-10,Z-10AWPS,Z-10A\A 03 V1 7-09,Z-09A,Z-09AV10 $ Z-108,PlanZ-108APB1 v5,Plan#2Z-108APB1 of V1 Z-10,Z-10,Z-10 V1 7-35,Z 35PB1,Z-35PB1 V2 Z-07A,Z-07A,Z-07A V 1 Z-38,Z-38,Z-38 V5 7-85,Z-35,Z-35 V2 * Z-05,Z-05,Z-05 V3 - Z-33,Z-33,Z-33 V1 7-I 12,L-111,2-111 V2 L-US,Hian#"SL-15FV-'ti1,t-Ian Ir-,i VL -6 L-33,L-.3.iA,Z.-J3AV1 12/17/2010 10:09:06AM Page 4 of 4 COMPASS 2003.16 Build 73 t .T. ,.. > ='-• .. x -- ' I _, ' 1. 11111 :-Ir:71411:)\ 111=MUI. : .--- ,0 I \i‘ 1 I I 1 'i. 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TZ ' ° 0 o CDCY) 1 O N s • O Ci ,CD 0 7T Xm I O 11 milk . 11 li CD O C CD N O CO Cr W 00 O O O Co Alaska Department of Nature' —esources Land Administration System Page 1 of/1 Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources I find l Alaska DNR Case Summary File Type: ADL File Number:' 28245 gi Printable Case File Summary See Township,Range,Section and Acreage? New Search Yes 0 No LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28245 Search for Status Plat Updates As of 01/25/2011 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 09/14/1965 Total Acres: 2560.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction:AA-NRB ASSIGNMENT APPROVED Meridian: U Township: 011N Range: 011E Section: 13 Section Acres:640 Search Plats Meridian: U Township: 011N Range: 011E Section: 14 Section Acres: 640 Meridian: U Township: 011N Range: 011E Section: 23 Section Acres:640 Meridian: U Township: O11N Range: 011E Section: 24 Section Acres:640 Legal Description 05-28-1965 ***SALE NOTICE LEGAL DESCRIPTION*** C14-24 T11N,R11E, UM 13,14,23,24 2560.00 04-01-1977**UNITIZED,LEASE AND PARTICIPATING AREA LEGAL DESCRIPTION** LEASE COMMITTED IN ENTIRETY TO PRUDHOE BAY UNIT AND OIL RIM GAS CAP PA PRUDHOE BAY UNIT TRACT 53 OIL RIM AND GAS CAP PARTICIPATING AREAS TUN,R11E, UM SECTION 13:ALL 640 ACRES; SECTION 14:ALL 640 ACRES; http://dnr.alaska.gov/projects/las/Case Summary.cfm?FileType=ADL&FileNumber=2824... 1/25/2011 Alaska Department of Nature' esources Land Administration System Page 1 of/ Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources find i Alaska DNR Case Summary File Type: ADL File Number: 28262 b Printable Case File Summary See Township,Range,Section and Acreage? Yes 0 No ( New Search LAS Menu I Case Abstract I Case Detail i Land Abstract File: ADL 28262 M P Search for Status Plat Updates As of 01/25/2011 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 08/26/1965 Total Acres: 2480.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date:05/04/2009 Case Subtype: NS NORTH SLOPE Last Transaction:CHNGTEXT CHANGE LEGAL TEXT Meridian: U Township: O11N Range: 012E Section: 17 Section Acres:640 Search Plats Meridian: U Township: O11N Range: 012E Section: 18 Section Acres:599 Meridian: U Township: O11N Range: 012E Section: 19 Section Acres:601 Meridian: U Township: 011N Range: 012E Section: 20 Section Acres:640 Legal Description 05-28-1965 ***SALE NOTICE LEGAL DESCRIPTION*** C14-58 T11N,R12E,UM 17, 18, 19,20 2,480.00 12-04-1969***ASSIGNMENT LEGAL DESCRIPTION*** SEGMENT 1 T11N,R12E,UM SECTION 17:640 ACRES SECTION 18:599 ACRES SECTION 19:601 ACRES CONTAINING 1840 ACRES,MORE OR LESS. SEGMENT 2-LANDS ASSIGNED T11N,R12E,UM ' SECTION 20:640 ACRES CONTAINING 640 ACRES,MORE OR LESS. 04-01-1977***UNITIZED AND PA LEGAL DESCRIPTIONS*** TRACTS 54&54A COMMITTED TO THE PRUDHOE BAY UNIT AND THE OIL RIM& GAS CAP PARTICIPATING AREAS TRACT 54 T. 11 N.,R. 12 E.,U.M. http://dnr.alaska.gov/projects/las/Case_Summary.cfm?FileType=ADL&FileNumber=2826... 1/25/2011 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME f 8L, Z.-4 7 PTD# o?f/O 3 I Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: .4:7L/.6/7/GL" 23,41/ POOL: ei--?e<1D14i '.274yQG Circle Appropriate Letter I Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name)must contact the Commission to obtain advance approval of such water well testing program. 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