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211-091
Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:211-091 6.50-029-23451-00-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 12384 12292 8881 8926 None None 8360 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 20" Surface 3203 9-5/8" 33 - 3237 33 - 3148 5750 3090 Intermediate 9197 7" 32 - 9230 32 - 8655 7240 5410 Production Perforation Depth: Measured depth: 9653 - 12215 feet True vertical depth:8957 - 8886 feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# 13Cr80 29 - 9050 29 - 8480 8926 8360Packers and SSSV (type, measured and true vertical depth) 4-1/2" HES TNT Packer Liner 3335 4-1/2" 9040 - 12375 8470 - 8876 8430 7500 12. Stimulation or cement squeeze summary: Intervals treated (measured): N/A Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 3351566153389 11111298 1581 142 115 1081 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: Brodie Wages david.wages@hilcorp.com Authorized Name:Stan Golis Authorized Title: Authorized Signature with Date:Contact Phone:(907)564-5006 Treatment descriptions including volumes used and final pressure: 13. Operations Manager Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP SPLUG 16. Well Status after work:Oil 5 Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured8876 Sundry Number or N/A if C.O. Exempt: N/A No SSSV Installed Junk Packer Printed and Electronic Fracture Stimulation Data 5 Operations shutdown Change Approved Program N/A 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: 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 7.Property Designation (Lease Number):ADL 028262 PBU Z-65 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 2:35 pm, Nov 05, 2020 Digitally signed by Stan Golis DN: cn=Stan Golis, ou=Users Date: 2020.11.05 12:24:24 - 09'00' Stan Golis DSR-11/5/2020 SFD 11/6/2020RBDMS HEW 11/5/2020 MGR13NOV2020 ACTIVITY DATE SUMMARY 10/30/2020 ...Well shut in on arrival... (HES Eline - Adperf) DRIFT FREELY TO DEVIATION AT 9,750' ELMD WITH 30' x 2-7/8" DUMMY GUNS (bottom target 9,732'). REACH TARGET DURING CORRELATION PASS WITH 30' x 2-7/8" MAXFORCE PERFORATING GUNS, THEN UNABLE TO GET BACK TO TARGET. MULTIPLE ATTEMPTS PUMP DOWN AT 5 BPM, 2BPM, AND NOT PUMPING BUT CONTINOUSLY UNABLE TO PASS 9,700-9,710'. ...Continued on 31-Oct-20... 10/30/2020 T/I/O=1693/1710/23 Temp=SI LRS unit 46 Injectivity test (PERFORATING) Pumped 5 bbls 60/40 MEOH followed by 195 bbls of 1% KCL down TBG to establish injectivity, Freeze protected surface lines with 5 bbls crude Pumped 59 bbls crude down TBG while eline runs in hole FWHP-918/1269/20, H EL in control of well at LRS departure. FP tag hung on tbg 10/31/2020 ...Continued from 30-Oct-20. Well shut in on arrival... (HES Eline - Adperf) PERFORATE 9,712'-9,732' WITH 2-7/8", 6SPF, 60 DEGREE PHASING, HSC LOADED WITH 17.5gr MAXFORCE CHARGES. REFERENCE LOG BP BPCL. REFERENCE LOG DEPTHS 9,712' - 9,732'. ...Continued on 1-Nov-20. Well shut in on departure... 10/31/2020 T/I/O= 1081 /1354/21 TEMP = SI (PERFORATING) Assist ELine as directed Pumped 176 bbls 1%KCL down TBG followed by 2 bbls of crude to FP surface lines. Pumped an additional 35 bbls crude down TBG while ELine runs in hole with perf gun. ELine incontol of well upon departure DSO notified of well status IA/OA = OTG FWHP's = 300/1230/26 ***WSR Cont. to 11/01/20*** 11/1/2020 ***WSR Cont. from 10/31/20*** T/I/O= 630/1170/20 TEMP= SI (PERFORATING) Assist ELine as directed . Pumped 35 bbls crude down TBG while Eline runs in hole with perf guns SLine in control of well upon departure. DSO notified of well status FP tags hung IA/OA=OTG FWHP's= 500/1170/22 11/1/2020 ...Continued from 1-Nov-20... (HES Eline - Adperf) ELINE SHORTED OUT WHILE ATTEMPTING TO GET BACK DOWN TO TARGET DEPTH AFTER CORRELATION PASS. MADE IT DOWN BELOW TARGET PERF INTERVAL ON INITIAL RIH. UNABLE TO GET DOWN TWICE WHILE PUMPING LRS AT 3 AND 5 BPM. SHORTED WHILE RIH ON THIRD ATTEMPT TO REACH TARGET. INVESTIGATION SHOWED THE INSULATION WAS CRUSHED THROUGH SHORTING OUT THE CONDUCTOR. SWAP HES ELINE 4863 UNIT TO 3030. ...Continued on 2-Nov-20. Well shut in on departure... 11/2/2020 ...Continued from 1-Nov-20... (HES Eline - Adperf) PERFORATE 9702'-9712' W/ 2.875" 6 SPF, 60 DEG PHASING HSC LOADED W. 17.5gr MAXFORCE CHARGES. PERFORATE 9653'-9683' W/ 2.875" 6 SPF, 60 DEG PHASING HSC LOADED W. 17.5gr MAXFORCE CHARGES. CORRELATED TO PDS COIL FLAG DATED 08-MAR-2017. ***Job Complete. Well shut in on departure. Turned over to WPO to POP.*** Daily Report of Well Operations PBU Z-65 • • s I- .--- �+ r r rr M r e- U X T ' ; o 03 A q Qin Q — , ,_ 17.;o co W rW QJ L Y I_ 1 N 0 03-0 Win 0 as m C7 N Z Hp cu 0`m Z. r r r r N r r r N RS y O vs CD L (v Q T Y U . Q a C C > O QX 15 Ha O Q Q 4 c) Y v ❑ l.7 rs .1-- N N N N N 'n L N O 6 Lb J C . . . . . } O N p m m m R a L v, J 7 ti ti 2 2 2 2 2 Q 4. C s co u L N 2 ) ' o C) r N o0 0 CO CO _ C Z Q' M N O r N N M u -0 co 0 +' IA Z < L1 > O v Q ' 4J O C a u a O - a v 'o ,n u 011 ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ C ■- v 0 W J J J J J J J J J t4 C `.. U 0 } _- W W W W W W W W W o 0) HLL LL LL LL I.L. LL LL LL LL. *-' O N 41 10 0 d J J J J J J J J J a C _c a) c �: Q Q Q Q Q Q Q Q Q ut Z Z Z Z Z Z Z Z Z v t v O N LL LL LL LL LL U.. U.. LL LL CC � C > y., o C Qj _ u O CT Z Q CR u > U MI O C _o m C 1-- N O Y u s > u v i G'.. 0 'Cj a) <Ta W A , O a U Rf x.4 " > N 2 2 W yJ LL >. N W im CO Q LLVV ce OLLW N N C W 4 4O F p JN 00 \'Gp 1 yVJVJLLy i G F v Q za a a E U �o • 0o U uH; d co .4 c/ > U OV 44 RS ca ua' ` ` >, a 1.4 .54 gtt '.y rp ` U d. J O J O J O O J J \ CA 2 co -,,,r ,...... IP 0 >- } }- } } >- W, Q Q Q Q Q Q m m m m COm 1- g Y ZwwWWWWZn Z(o O O O O O O U Y ® dE pm 2 2 2 2 2 2 2 Q -1000000�- Z Z z a. W UZil � p� a a a a a a o c o N a m N co w❑ `t N 00 c N m m v N X n O O 0 0 0 o c o 0 0 0 £ rn W cV O 0 0 0 0 0 0 0 a— 0 w u cu Q nu G_1 ❑ N ❑ 2 Q N N O f0 N LU a Q W 000000000onra CC m ° 0 s V Q M 0 O O O O N 4' 0" O O O 0 0 0 0 O O 7aa N- N 00 0 N M 00 4-, 'O L O) tD (O 1.() f0 O 00 (O tD I-• > Itfl 0_O O N UA M _M M to M M M N N N E m �N+ N N N N N N N N N y� c �1 07 T T O O O T T O, C O N N N N N N N N N (p 00 O O O O O O O O I_ v C O O O O O O O O O Yv /w 4 UNU) I) ,nANNU 0m ui 7,-3 d SE U cEO c N u WCO N -io �� U d ci rl Q O Q U O co O r N C N • Z tkot, Z N M Ocsi co O N r N r aJ (B v, u 0: Noir a Q 0 II�V J 3 ao N > r a Y Z CD -0 U �C i t W.. Z C y RS 0 a zv cu A E d C a O C/a a a• Q a` a CO STATE OF ALASKA • •ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 211-091 3. Address: P.O.Box 196612 Anchorage, Development D Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-23451-00-00 7. Property Designation(Lease Number): ADL 0028262 8. Well Name and Number: PRUDHOE BAY UNIT Z-65 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 12384 feet Plugs measured feet true vertical 8876 feet Junk measured feet MAR 2 3 2017 Effective Depth: measured 12292 feet Packer measured 8926 feet true vertical 8881 feet Packer true vertical 8360.06 feet G GCC Casing: Length: Size: MD: ND: Burst: Collapse: Structural Conductor 80 20"91.5#A-53 35-115 35-115 1533 515 Surface 3203 9-5/8"40#L-80 33-3236 33-3147 5750 3090 Intermediate 9197 7"26#L-80 32-9229 32-8653 7240 5410 Production Liner 3336 4-1/2"12.6#13Cr8 9039-12374 8469-8876 8430 7500 Perforation Depth: Measured depth: See Attachment feet True vertical depth: See Attachment feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 29-9049 29-8480 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): J1 8 f Treatment descriptions including volumes used and final pressure: SCANNED APR017 °" 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 130 691 1617 1596 273 Subsequent to operation: 190 850 1453 1546 283 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations G3 Exploratory ❑ Development p Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil El Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature Phone +1 907 564 4424 Date 3/23/17 Form 10-404 Revised 5/2015 177-1.- 3 f 2 / / p�1 DMC v` MAR R 2 4 2017 Submit Original Only A, 7/8-/7 RBDMS V t�t' • • a� l0 m• M Tr00) 0D r- up Tt T- CID0) CDc- U100CC) r Tr t 07 .- O CO OD CO M CO CO V- CD CO 00 O CD CO CO , Cn CO CO 06 O O CO O rn 0) 0 0 Tr T' M O CO (h O CO Cy CO OD 0) 0) N' CO N N V- V- 0 0 0 0 CD 0 0 CAO 0) OD 0 0 0 0 0 0 0 0 0 CD O O O O O O O O O O O O O a O 0) N Tr OD N r- CC) V- co Tr CD — Cn C") C") N L▪ I' M 0) M 00 CO I' CO CO . 0) '— N OD 0 Tr 0) I' . 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' I t el i i i i 1 1 1 , 1 1 6 1 1 1 m 11 CL 0- 0 J 0 O w 11 NNNNNNNNNNNNNNNNNNNNN a s m m w LL cn co a ct . • • Packers and SSV's Attachment PRUDHOE BAY UNIT Z-65 SW Name Type MD TVD Depscription Z-65 PACKER 5002.74 4861.39 7" Baker Iso-Zone ECP Z-65 TBG PACKER 8925.63 8360.06 4-1/2" HES TNT Perm Packer Z-65 PACKER 9049.88 8480.19 5" Baker ZXP Top Packer • • • U)13 _ . J ai - O L ' m O N U) so rNI > N M N �� •� N 7 2 • N a) N O N '- a) Q O a) °) N N N m O Q J Q Q co l- 3= V 465 3 •~3 c ,_ V w o N 4 Q 3CA•�L6 ° ° ° mE co•NI- 0 -a c c0 C O 6 o E 1-15 C 0 CO * mQsrn� COOQo o o * E -C ° O '' CON- *- ° . °w r CD a � U) - ccQ 1- mJ ,- 0) N - a) � a) � = TE .ca co c QU U) CO c CO� w o oci Zip L W 5 aa)i N ' M � c`) a) E p'N .c 3 a) co V MO •,a) � m a) Q tY ch > Q co Q 00 _ O � a ° a) O O F- U) O 'am Cin c .� c E E Q °) U U) Q •.: a) _1to O N O .N O O a) a) O o ° C = Q c r- o ©J 0 U) � m * mM a) a) a5 133 � � 'oEOa�) = S � 2U) N000 -1 O O -1 > II ce c c o o l 02 � ° O c2 �; co N O � 0 W e Q � � . C OCNI �c C - F- U) 3 Q o o = 0 3 a °o 3 m a o ° U) ° C° 0 ›- Z Z LL DP V U = Co �O ° .. N c *, iN W O CO 0 N t;, coW ZLL) pU ,- * Q * YEN c)cu -p 1- E Cu * � � c � mN L N Q X J 0 Q 0) a) o a) lj c*" -aN o O c >-..9..) m - a) ° a E 5r a o ,- co > co .— C ' oco Q ° O a) m -- 3 too 0. 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I CON0_ ._ = - - N 63 0 Egli U) D � D cN rn0 E n,8 EooO .0co0) c E0 000)0: � U � Qc>n _1U � 00NF- ° coon EcooOa > caN 30a w Q Q O O r r r r .- ›- N N O O 0 0 O F- O N N N N N N > N N M c\ co N N- N M M M M 0 a 4110 • • 2 $ 2Q ) °- & / _ a7 § & / ® q \ Vim « 2 . ° v m 0 § 3 - o = a = 0)b q ' o % c % _ ° a) t 9 x / •E u) g � U / - / E~ c / ° .0 _ ® .0 £ 2 b 2 . - W # @ a) N._CO 0 & \ $ c ƒ &/ / %a r •c ° 0 2 0 e = a. k • " � _ _ £ ACL_ CO 2 / cm � q2 w c1:5- 0,51 E2 § 20 c 22Dm 2 $ 2 J ce f co § £ \Co 7 = o) 00 � 2 © c _ ± D "0w - � Rfq - ■ £ 770c C _ a ■ \ � - ppo 0 0 s' 2a) I » § in / .E\ O o q / d 8E " CO E / cm \ / / kE $ I ( a. @ - o 2 o c, @ 2 = & • - O m > 0. � / � 32 § .- Eo c. ..to � ¥ O 2 QUo.gUcoj \ c -' % % / cam = - m 0- E2 £ m % o_ o a- \ J • � � && __ � >. mon / ■ 2 \ u0 - ' �� t2 22 E � o_ 0)2 - 0 fxU) 0 c°-- 160� � � � f eL \� / / � k \ " - I— o O ¥ L) -8 » d ■ £ = c a £ e = c CL 0 • —'o 13)2 0 .0 . @ - \$ ' Ce p j0 ) a c 2 t 6 t ® 5 IX 8 Eƒ a, - / 0 = - 0 - f 2e n • ■ a c ® q f '- m Cl k °uw � / o• k �7ck fk , � k _ 2 = _ e 5 I- u) Uao = , @w / _l � 5 / , a = o = •- - 0 q - .c E O 2 C U) c � � � � � � 5 Kv2fK2 � RR li / \ / U - E« k m I k ' o °- = 0) 0) ± - O - / 0 3 m m 0 / it( m = I O N 2 -3 •$ 0 x $ 0 a e a 0 E a O a. &U E E 2 Et d 2 / 2 ¥ ¥ ¥ d 0 c - / \ 2 a) d \ TREE= 4-1/16"CNV • WELLHEAD= FMC SAFETY NOTES: WELL ANGLE>70*@ 9698'. ACTUATOR= CAN ME 60 Z-65 ***4-1/2"CHROME TBG&LNR'**34/2"X0 FOR OKB.ELEV= 89.33' SHOE FLEX. BF ELEV= 56.10' KOP= 700' Max Angle= 98°@ 986T /I/ Datum MD= 9518' I I 2050' -I4-112"FPS X NP,D=3.813" Datum ND 8800'SS GAS LFT MANDRELS 1ST MD ND DEV TYPE VLV LATCH PORT DATE INSINSULATED20',215.5#,A-53 INSULATED CONDUCTOR - 80' , 5 3403 3307 17 KBG-4-5 DONE BK 16 01/10/13 4 5626 5413 33 KBG-4-5 DOME BK 16 01/10/13 7"CSG,26#,L-80 VAM TOP HC XO L-80 TOl —H 1794'/4 3 7186 6729 34 KBG 4 5 DOME BK 16 01/10/13 2 8174 7631 15 KBG-4-5 DOME BK 16 01/10/13 1 8832 8270 15 KBG-4-5 SO BK 24 01/10/13 9-5/8"CSG,40#,L-80 BTC,D=8.835" -I 3237' a 0-- 4991' -{r HES ES caEl1ER Minimum ID =3.725" @ 9038' 4-1/2" HES XN NIPPLE IS Zg 5003' H7 BKR ECP PKR,ID=6.276" ' 8862' -I4-112"FES X NP,D=3.813" 889T -4-1/2"SGM-NDPG SNGLE DROP SUB, ID=3.958" Z 8926' -7"X 4-1/2"HES TNT PKR,ID=3.856" ' 8962' -I4-112"HES X NP,ID=3.813" ' 9038' -14-1/2"HES XN MP,D=3.725" 9040' -7"X 5"BKR ZXP PKR w/TEBAC t SLV, 4-1/2"TBG,12.6#,13CR-80 VAM TOP HC, -I 9050' 7 D=4.200' .0152 bpf,D=3.958" 9050' H4-112"WLEG,D=3.958" TOP OF 4-1/2"LNR -I 9062' 9056' H7'X 5"BKR FMC HYD LNR HGR,13=4.210" 9062' _--15"X 4-1/2"XO,13=3.900" 7"CSG,26#,L-80 TCI,.0087 bpf,ID=2.992" -I 9230' HA IH BMD TT LOGGED (DATE) I PERFORATION SUMMARY REF LOG: Triple Combo MIND on 10/15/11 ANGLE AT TOP PERF:92°@ 10120' Note:Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sgz 1 SHOT 1 SQZ -SEE PG 2 FOR PERF SUMMARY- I I I PBTD 12292' wee.* (•1'�. .0 12342' H4-1/2"X 3-1/2'XO,D=2.98" - 4-1/2"TBG,12.6#,13CR-80 VAM TOP, 12335' 11 44. -{ ..1. 000,4 .0152 bpf,ID=3.958' ,8'8.8 4 3-112"LNR,9.2#,L-80 TCI,.0087 bpf,D -=2.992" 1 12375' 184 4.4.1 DATE REV BY COMMENTS DATE REV BY CONME TTS PRIJDHOE BAY UNIT 10/23/11 D14 ORIGINAL COMPLETION WELL: Z-65 11/11/11 MJF/JMD DRLG DRAFT CORRECTIONS PERMIT No: 2110910 11/29/11 MBMJNCIGLV C/O(11/25/11) AR No: 50-029-23451-00 01/28/13 BSE/JND GLV CIO(01/10/13) SEC 19,T11N,R12E,4295'FSL&2777 FEL 03/03/15 KAB/JMD CORRECTIONS TO GLV DATES 03/20/17 DLW/JMD ADPERFS(03/07-10/17) BP Exploration(Alaska) TREE= 4-1/16"C1W V B.LF EAD= FMC Z-65 SAFETY NOTES: WELL ANGLE; 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. .2] i - ©_q i Well History F'le Identifier Organizing(done) Two-sided ❑ Rescan Needed 7RE AN: OVERSIZED: NOTES: Color Items: ❑ Maps: , Grayscale Items: ogs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: BY: Maria Date: 7/3 Q /s/ ffe Project Proofing BY: ACMDate: /s/ YIP 7/3°J/'t Scanning Preparation 3 x 30 = q0 + 7 =TOTAL PAGES q 7 (Count does not include cover sheet) BY: Date: /9 /s/Production Scanning 7/3 Stage 1 Page Count from Scanned File: "J (Count does include cover sheet) Page Count Matches Number in Scanning Preparation: ✓ YES NO BY: 41290 Date: 7/3 O I 1 1+ /s/ iip Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Stage 2 Additional Well Reports: YES NO TOTAL PAGES: Digital version appended by: Meredith Michal Date: /s/ Final Page Count: Stage 1 + Stage 2: TOTAL PAGES: Scanning is complete at this point unless rescanning is required. ReScanned BY: Maria Date: /s/ Comments about this file: Quality Checked 7/8/2014 Well History File Cover Page_20140708.doc o a 4 j IZ� Z I a z N >- >- >- M CsI CL a)o To' -C >�o 1 a N 1 a I I NN oo NC c cm 1 1 Z Z � 0_ Z o , 0 0 -c O E. u ` N U m Q c1 ,m� o r m m o �\ 2 c a) 0 0 -J c a U o ou c > co 2. d 2O • co d .o cn c - ! d Z J Z In 1° Z a) 0 , E ci Cl)I— To In o U N .if, N o ! E �m } 0 Ce a ! E g ° o a 1 0 To °' Z o m m O LE /O^ Q C '- N N N ! a- .D To' a5 1� U > N N N NN CO N •o O W as y C C G7 z w j Ce 0 co Q. O O N N N 0 a a ii E X _. 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WU a a c o �I E j a E o O °� =y a�l9a o o a o t).. 7„ o o ao) II 0 II o a 10 i 3 _1 0 1-1-1 w a w 3 1 z 0 a 0 I, 0 1 0 /_-7 A-0-\ SchlumbergerTrans#:6562 2--67 Drilling&Measurements - ED MWD/LWD Log Product Delivery DATA M K BENDER Customer: BP Exploration(Alaska)Inc. Dispatched To: Makana Bender Well No: Z-65 REVISION Date Dispatched: 13-Dec-13 Job#: 11AKA0091 Dispatched By: Corine Barrera Well/ Product Hardcopy Digital Copy E-Delivery Date Final Field Data 2inMD 1 5inTVD 1 Survey 1 LAS Data 1 CD 1 _RECEIVED D DEC 1T2013 -- AO C — Please sign and email a copy to: Please sign and email/fax a copy to: Analisa Steger(a�bp.com spacilloslb.com Stephanie Pacillo Analisa Steger Fax:907-561-8317 Received By: 0 bp BP Exploration(Alaska)Inc. Attn:Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage,Alaska 99519-6612 May 25, 2012 St- NOV 0 It 2012 Mr. Jim Regg 3,1 1 9 I Alaska Oil and Gas Conservation Commission 333 West 7th Avenue �-11°5— 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 P P P 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 Z-13A 2042030 50029220690100 Z-148 2060990 50029218440200 Z-15 1880880 50029218490000 Z-16 1920120 50029222450000 Z-17 1891390 50029220010000 Z-18 1890960 50029219710000 Z-19A 2061050 50029222510100 Z-20 1881000 50029218590000 Z-21A 2001010 50029219380100 Z-22B 1960350 50029220370200 Z-23B 2041080 50029219500200 Z-24 1890180 50029219170000 Z-25 1881590 50029219020000 Z-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 Z-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 Z-101 2001620 50029229780000 Z-102 2070500 50029233530000 1103 2042290 50029232350000 Z-108 2052010 50029232920000 Z-112 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 211-oa 1 • • RECEIVED Schlumberger FEB © 7 2012 Drilling&Measurements AOGCC MWD/LWD Log Product Delivery Customer BP Exploration(Alaska)Inc. Dispatched To: Christine Mahnken(AOGCC) Well No Z-65,Z-65PB1 Date Dispatched: 21-Oct-11 Installation/Rig Doyon 14 Dispatched By: Brian Muzny Data No Of Prints No of CDs Surveys 2 1 1 Please sign and return to:James H.Johnson Received By: 6°j, �,y� -_' ./24 BP Exploration(Alaska)Inc. GG Petrotechnical Data Center(LR2-1) 900 E.Benson Blvd. Anchorage,Alaska 99508 Fax:907-564-4005 e-mail address:johnsojh@bp.com LWD Log Delivery V1.0,01/22/2010 SCAMNEU . • 1 D^m m m n[h N !JH9 N m H!P: !PJi: N Wm N�m O> ,1 m CrJ Nr W M e:H: i eNmOm O %m 'Ov mmm !Hi:!: OO O 8 O O 'm N m N 28222 8NMM a J _1 04444 W 1 mmNn 1nmNmmNnnm 44444 eem' e m vmermrm 44444 vm%e%mr v em�N%mWN e m 44444 e m'm' 44044 1 0 1 1 44404 a l ^ Do0ac,moner2 r0WN OrneWeF w E,W rormommAL24, 2'248 828;8 pMMMM 4pnmo pN%eWm.-1 m mnmo ,N,-No ,e-r4a�NMn 0MmN,2N 144/ 1 • () _ WWnWW nWnWr%W 48420 8%442 rNeON 28M %O8814- 44.822 W8N d J 'n m 'mmmm ' m%N rN%m %mmW 'HUH WW Wm ::::: :::: :::: ::::: ::::: ::::: :::: :::: 4t7 1;7 • • • r ooooo 6622' 222'6 000,22 W%W eN 0..1N 6.41. 2mmWiMo.WM w 'mmmm 'mmmmwwwwm 'mmmm .www. mnnnn ,... 84Nn88 ' neee'mmmm 'mmmm 'mmmm mmmm' mmmm2 'mmmm 'mmmm mmmm 'mmmm2222' 22222 'mmmm 22222 2222 2mmm2 22222 2282m SS222 UI N 0 m^8�8 MX0 1 812:2Z7, mWW(? 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O 0) w` > y E > >. ,N N > > N U v m co0 E . lis p o t q McMains, Stephen E (DOA) From: Hubble, Terrie L [Terrie.Hubble@bp.com] Sent: Monday, December 05, 2011 4:13 PM To: McMains, Stephen E (DOA) Subject: PBU Z-65/PTD#211-091 prD , // 0G Hi Steve, Please reference the following well: Well Name: PBU Z-65 Permit#: 211-091 API #: 50-029-23451-00-00 Date of Test: 12/01/11 Type of Test: IPT (Initial Production Test) Choke Size: 96 Choke Unit: 64THS Production Method: Flowing Duration (Hours Tested): 6 Top Reference (Top Perf MD): 10120' Bottom Reference (Bottom Peri MD): 12080' Tubing Flowing (Pressure): 284 Casing Pressure: 1,460 Total Test (Rate f/ O, W, G): 1,147 11 2,351 24-Hour Rate (0, W, G): 4,587 43 9,402 Gravity (Oil, API): 24.4° GOR (Gas-Oil Ratio): 2,050 This well began Production on December 1, 2011 Method of Operations on this date: Flowing 1 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: ® Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class: 20AAC 25.105 20AAC 25.110 ® Development 0 Exploratory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One 0 Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. 10/23/2011 _ 211-091 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 9/17/2011 50-029-23451-00-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 10/15/2011 PBU Z-65 4294'FSL,2771'FEL, SEC. 19,T11 N, R12E, UM 8. KB(ft above MSL): 89.33' 15.Field/Pool(s): Top of Productive Horizon: 2269'FSL,4750'FEL, SEC. 19,T11 N, R12E, UM GL(ft above MSL): 56.1' Prudhoe Bay Field/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool 148' FSL, 3565'FEL,SEC. 19,T11 N, R12E, UM 12292' 8881' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 599906 y- 5959100 Zone- ASP4 12384' 8876' - ADL 028262 TPI: x- 597962 y- 5957049 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 599184 y- 5954945 Zone- ASP4 None 18. Directional Survey: ®Yes 0 No 19.Water depth,if offshore: 20. Thickness of Permafrost(ND): (Submit electronic and printed information per 20 MC 25.050) N/A ft MSL 1803'(Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 MC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD: GR/RES, GR/RES/DEN/NEU,UT GR/RES/AZI DEN/NEU N/A 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE I AMOUNT CASING WT.PER FT. GRADE Top BOTTOM Top BOTTOM SIZE I CEMENTING RECORD PULLED 20" 133# A-53 Surface 109' Surface 109' 42" -260 sx of Arctic Set 9-5/8" 40# L-80 34' 3237' 34' 3148' 12-1/4" 1297 sx DeeDCrete.436 sx Class'G' 7" 26# L-80 32' 9230' 32' 8655' 8-3/4" 433 sx LiteCRETE; 102 sx'G', 160 sx LiteCrete ---"i Lk 521" 4-1/2"x 3-1/2" 12.6#/9.2# 1 3Cr80 I L-80 9039' 12375' 8470' 8876' 6-1/8" 292 sx Class'G' 24. Open to production or injection? IN Yes 0 No 25. j TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET (MD+TVD of Top&Bottom;Perforation Size and Number): (MD/ND) 2-7/8"Gun Diameter,6 spf 2-7/8"Gun Diameter,6 spf 4-1/2", 12.6#, 13Cr 9050' 8926'/8360' MD ND MD ND 10120'-10270' 8971'-8965' 11460'-11520' 8932'-8926' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 10420'-10690' 8969'-8986' 11560'-11630' 8923'-8920' 10710'-10800' 8988'-8996' 11740'-11880' 8915'-8908' DEPTH INTERVAL(MD)I AMOUNT AND KIND OF MATERIAL USED 10900'-10950' 8997'-8994' 11970'-11990' 8905'-8904' 2200' Freeze Protect w/69 Bbls of Diesel 10965'-11050' 8992'-8980' 12010'-12030' 8902'-8901' 11080'-11190' 8976'-8961' 12060'-12080' 8898'-8896' 27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): Not on Production Yet N/A - Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period 4 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. " REC1 I1�ED' None 1 RBDMS NOV 2 2 2011 F OV 2 12011 Form 10-407 Revised 12/2009 CONTINUED ON REVERSL�)"'sk 7th dS s' Citlfit�ld -ibub}nit Original Only/' 29. GEOLOGIC MARKERS(List all formations anti markers encountered): 30. FORMATION TESTS NAME MD ND Well Tested? 0 Yes ®No Permafrost Top 34' 34' If yes,list intervals and formations tested,briefly summarizing test Permafrost Base 1860' 1837' results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Ugnu 3281' 3190' None Ugnu M 4396' 4267' Schrader Bluff N 4446' 4317' Schrader Bluff 0 4620' 4489' Base Schrader Bluff 4982' 4842' HRZ 6758' 6368' Kalubik 7009' 6582' Kuparuk C 7056' 6622' LCU 7102' 6660' Kuparuk B 7102' 6660' Kuparuk A 7112' 6668' Miluveach 7187' 6731' Kingak 7920' 7386' Sag River 9227' 8652' Shublik 9252' 8676' Eileen 9360' 8775' Ivishak/Zone 4 9407' 8813' Formation at Total Depth(Name): Ivishak/Zone 4 9407' 8813' 31.List of Attachments: Summary of Daily Drilling Reports,Well Schematic Diagram,Conductor As-Built,Surveys 32.I hereby certify that the foregoing is true and correct to the best of my knowledge. ( n , ii Signed: Terrie Hubble Title: Drilling Technologist Date: / /11 PBU Z-65 211-091 Prepared By Name/Number. Terrie Hubble, 564-4628 Well Number Permit No./Approval No. Drilling Engineer: Cody Rymut,564-5452 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and 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 AAC 25.071. Form 10-407 Revised 12/2009 Submit Original Only TREE= 4-1/16"CIW WELLHEAD= FMC Si 'NOTES: WELL ANGLE>70°@ 9698'. ACTUATOR= CW ME-60 Z-65 -65 ***4- a2"CHROME TBG&LNR***3-1/2"XO FOR KB. ELEV= 89.33' SHOE FLEX. BF. ELEV = 56.10' I KOP= 700' v v Max Angle= 98°@ 9867' '.. 2050' —4-1/2"HES X NIP,ID=3.813" Datum MD= 9518' 1 1 Datum TV D= 8800'SS GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 20",215.5#,A-53 INSULATED CONDUCTOR 80' 5 3403 3307 17 KBG-4-5 DMY BK 0 10/21/11 4 5626 5413 33 KBG-4-5 DCK BEK 0 10/21/11 7"CSG,26#, L-80 VAM TOP HC XO L-80 TCII — 1794' 3 7186 6729 34 KBG-4-5 DMY BK 0 10/21/11 2 8174 7631 15 KBG-4-5 DMY BK 0 10/21/11 1 8832 8270 15 KBG-4-5 DMY BK 0 10/21/11 9-5/8"CSG,40#, L-80 BTC, ID=8.835" — 3237' a 0----I 4991' —17"HES ES CEMENTER Minimum ID =3.725" @ 9038' CE >9 5003' --I 7"BKR ECP PKR, ID=6.276" I 4-1/2" HES XN NIPPLE 8862' —I4-1/2"HESXNIP, ID=3.813" 1 1 I 8897' —4-1/2"SGM-NDPG SINGLE-DROP SUB, ID=3.958" 8926' —17"X 4-1/2"HES TNT PKR, ID=3.856" 1 1 8962' —4-1/2"HES X NIP, ID=3.813" I I 9038' —14-1/2"HES XN NIP, ID=3.725" ��I 9040' —7"X 5"BKR ZXP PKR w/TIEBACK SLV, 4-1/2"TBG, 12.6#, 13CR-80 VAM TOP HC, —I 9050' 7 ID=4.200" .0152 bpf, ID=3.958" 1 \ 3\i 9050' -4-1/2"WLEG, ID=3.958" I TOP OF 4-1/2"LNR — 9062' 9056' —17"X 5"BKR HMC HYD LNR HGR, ID=4.210" 7"CSG,26#,L-80 TCII, .0087 bpf, ID=2.992" —I9230' I . ' 9062' —Is"X 4-1/2"XO, ID=3.900" I —ELMD TT LOGGED (DATE) PERFORATION SUMMARY REF LOG: Triple Combo MWD on 10/15/11 ANGLE AT TOP PERF:92°@ 10120' I Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 10120- 10270 0 10/20/11 I 2-7/8" 6 10420- 10690 0 10/20/11 2-7/8" 6 10710- 10800 0 10/20/11 I ��� b 2-7/8" 6 10900- 10950 0 10/20/11 2-7/8" 6 10965- 11050 0 10/20/11 2-7/8" 6 11080- 11190 0 10/20/11 I 2-7/8" 6 11460- 11520 0 10/20/11 2-7/8" 6 11560- 11630 0 10/20/11 2-7/8" 6 11740- 11880 0 10/20/11 I 2-7/8" 6 11970- 11990 0 10/20/11 2-7/8" 6 12010- 12030 0 10/20/11 2-7/8" 6 12060- 12080 0 10/20/11 PBTD — 12292' 4...QI.i 12342' 4-1/2"X 3-1/2"XO,ID=2.98" MO 4-1/2"TBG, 12.6#,13CR-80 VAM TOP, H 12335' ►����O ►. 4 �4.. .0152 bpf, ID=3.958" i.'/'.'/, 3-1/2"LNR,9.2#,L-80 TCII, .0087 bpf, ID=2.992" -I 12375' ►.1..I' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 10/23/11 D14 ORIGINAL COMPLETION _ WELL: Z-65 11/11/11 MJF/JMD DRLG DRAFT CORRECTIONS PERMIT No: 2110910 API No: 50-029-23451-00 SEC 19,T11 N,R12E,4295'FSL&2772'FEL BP Exploration(Alaska) l 3 �� ;� I V–PAP 9 ■ ■ 33 ' '' y; SPINE RD �i 15 8 • ■ 32 .t �) v'"t 7 ■ ■ 31 1` \ .,.(' �1la a W-4,PAD 6 ■ ■ 30 ��.,,,,.777,, j `4 t 112 ■ �. Z—PAD 1i . , •I{ '.. 5 ■ i ■ 29 108 ■ ■ 2101 ■ 1021 '� r t , eye 1 3 ■ ■ �ga 1161 7 THIS PROJECT �/ 2 • ■1 1041 1 }: 1111031 ■ IlSPARE—A/ 111P-504A °'-" ® ■ P-5048 I r'' `1 VICINITY MAP ® NTS ■ 21 ■ 22 ",4 ■ 23 1: • ■ 24 12 IN ■ 25 13 • ■ } 041/4 14 NI OT 1 15 ■ ■ SIII LOT 2 i,`4:,,,,,,,s,--S."1/4:,S-,S.61 t O�1',.4.i jt,.. • Z-100 "Y R,d f,,,,� lb-, 16 ■ I SSLOT 4 .'�''�� i 'S.IIr. 17 ■ ''77 ,.r, SURVEYOR'S CERTIFICATE 18 ■ --:,,,-1,*---?: " 9 �3 * >', [ HEREBY CERTIFY THAT I AM 46 ■ '\\ • PROPERLY REGISTERED AND LICENSED tg ■ Z—PAD ,',.- 4 4'.-z TO PRACTICE LAND SURVEYING IN 4 �� '''y THE STATE OF ALASKA AND THAT 20 ■ C2 '''`' ,,,, --- _ THIS AS—BUILT REPRESENTS A SURVEY ✓ MADE BY ME OR UNDER MY DIRECT ' 50 - '*° .iCk .4 F. Allison .`5 '" SUPERVISION AND THAT ALL 511 s DIMENSIONS AND OTHER DETAILS ARE 6 202 '7,-,'- r k° • CORRECT AS OF JULY 02, 2011. II - 57 SG 6181 r i�E ICtig- 1 ° l 215i i 113Lix ' 2161 241 N69 K SL 0= 21�3i • — i L- � LEGEND 268 — I201, II CONDUCTOR 2121 EXISTING WELL CONDUCTOR NOTES: !I 1. ALASKA STATE PLANE COORDINATES ARE ZONE 4. NAD 27. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL \ MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. GEODETIC DATUM iS NAD27. 6. PAD AVERAGE SCALE FACTOR IS 0.999911213. 7. DATES OF SURVEY: JUNE 28-30, JULY 1-2, 2011. 8. REFERENCE FIELD BOOKS: NS11-44 PGS. 1-75; NS11-46 PGS. 1-9, AS—BUILT WELL CONDUCTORS: �rF 341, 40, 42, 50, 511, 55, 57, 61, 62. 65, 66, 68, 69, 70, 105,113, 115, 201, 202, 203. 2111, 2121, 2131, 2141,2151, 2161, 2171, 2181, SD, SC, SL, NK 4...._ F. K<rfae:rl.-� aux + BARNHART baIFt ',r4EtoJ/�cc18S N rjljal FR811 WRZ 21 0 -s,eua WOA Z-PAD .....___._ .._._.__.._... -- miaSSOC. w WRD PAD EXPANSION 4)0 7/1/11 r4..1JE0 fIXP INFOa,1ATION _... ,. TIS J.I K;1 n.110 200' AS-BUILT WELL CONDUCTORS 1 OF 3 , Mt,,C.I 1,5,1E I PEv.w.r. a,Ir.-, ..aa.; ......, we„ LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA WELL A.S.P. PLANT GEODETIC GEODETIC CELLAR SECTION NO. COORDINATES COORDINATES POSITION(DMS) POSITION(D.DD) BOX ELEV. OFFSETS Y= 5,959,100.13 N= 1,179.09 70'17'51.597" 70.2976658' 4,292' FSL 341 X= 600,125.84 E= 1,870.12 14911'20.998" 149.1891661' 56.1' 2,552' FEL Y= 5,959,100.17 N= 1324.00 70'17'51.616" 70.2976711' 4,294' FSL 40 X= 599,980.94 E= 1870.16 149'11'25.221" 149.1903392' 56'0' .2,697' FEL 'Y=5,959,239.95 N= 1,126.45 70'17'52.965" 70.2980458' 4,431' FSL 42 X= 600,178.47 E= 2,009.96 149°11'19.409" 149.1887247' 56'0' 2,497' FEL Y= 5,959,100.19 N= 1,473.93 70'17'51.636" 70.2976767' 4,296' ESL 50 X= 599,831.02 E= 1,870.18 149'11'29.591" 149.1915531' 56.2' 2,847' FEL Y=5,959,240.04 N= 1,466.46 70'17'53.011" 70.2980586' 4,435' FSL 511 X= 599,538.49 E= 2,010.05 149'11'29.319" 149.1914775' 55'9' 2,837' FEL Y= 5,959,100.12 N= 1,458.95 70'17'51.634" 70.2976761° 561' FSL 55 ,X= 599,846.00 E= 1,870.11 149'11'29.155" 149.1914319° 56.1" 2,832' FEL Y=5,959,240.04 N= 1,421.49 70'17'53.005" 70.2980569' 4,435' ESL 57 X= 599,883.46 E= 2,010.05 149°11'28.009" 149.1911136' 55.9' 2,792' FEL Y=5,959,239.97 N= 1,376.44 70'17'52.998" 70.2980550 4,434' FSL, 61 X= 599,928.50 E= 2,009.98 149'11'26.695" 149.1907486' I 55'9 2,747' FEL' 62 `Y=5,959,239.94 N= 1,436.45 70'17'53.006" 70.2980572° . 56.0' 435' FSL X= 599,868.50 E= 2,009.95 i 149'11'28.445" 149.1912347' 2,807' FEL r Y= 5,959,100.15 N= 1,398.94 70°17'51.626" 70.2976739' 4,295' FSL 6J X= 599,906.01 E-= 1,870.14 i' 149'11'27.405", 149.1909458' 56.1' 2,772' FEL Y= 5,959,100.11 IN= 1,443.99 70'17'51.632"E 70.2976756' 56.2' 4,295' FSL i ° X= 599,860.96 E= 1,870.11 149'11'28.719" 149.1913108' 2.817' FEL Y=5,959,100.23 N= 1,134.00 70'17'51.592" 70.2976644' 4,291' FSL 68 X= 600,170.92 E= 1,870.22 149'11'19,683" 149.1888008' 55.9' 2,507' FEL 69 Y=5,959,239.94 N= 1,301.49 70'17'52.988" 70.2980522° 56.1• :4,433' FSL X= 600,003.45 E= 2,009.95 149'11'24.511" 149.1901419' '2,672' FEL Y= 5,959,100.10 N= 1,384.02 70'17'51.624" 70.2976733' 4,294' FSL 70 X= 599,920.93 E= 1,870.09 149'11'26.971" 149.1908253' 56.2' 2,757' FEL 105 1Y=5,959,100.05 N= 1,163.88 70°17'51.594" 70.2976650° 55.9' 4,291' FSL I X= 600,141.04 E= 1,870.04 149'11'20.554" 149.1890428' 2,537' FEL Y=5,959,239.90 N= 1,346.45 70'17'52.994" 70.2980539' 4,434' FSL 113 X= 599,958.49 E= 2,009.91 149'11'25.821" 149.1905058' 56'0' 2,717' FEL Y=5,959,240.03 N= 1,361.38 70'17'52.997" 70.2980547' 4,434' FSL 115 X= 599,943.56 E= 2,010.04 149'11'26.256" 149.1906267' 55.9 2,732' FEL L NOTFS: 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213. AS—BUILT WELL CONDUCTORS: 341, 40, 42, 50, 511, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105. 113. 115. 201, 202, 203, 2111, 2121, 2131, 2141, 215i, 2161, 217i, 218i, SD, SG, SL, NK "Aiwa I' Robert BARNHART mesa p - --- JACOBS 0 • FR61I WOZ 21 WOA z PAD , ea /1/1�,issued SO WRD PAD EXPANSION °°�"'"°""°'""°"` AS—BUILT WELL CONDUCTORS 2 3 FOR INFORMATION (............... T1 11 raw.. '' use, got. 1" 200 f "n`E:'. .• h Vl>IO.V 1 dl gC?iA ",o',rce LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA WELL A.S.P. ' PLANT GEODETIC GEODETIC GRAVEL SECTION NO. COORDINATES COORDINATES POSITION(DMS),POSITION(D.DD) PAD ELEV. OFFSETS Y=5,959,240.18 N= 1,171.46 70°17'52.973"I, 70.2980481' 4,432' FSL 201 X= 600,133.47 E= 2,010.19 149'11'20.721"� 149.1890892' 56'6' 2,542' FEL 202 Y=5,959,239.94 N= 1,451.46 70'17'53.008" 70.2980578' 4,435' FSL X= 599,853.49 E= 2,009.95 149°11'28.882"' 149.1913561° 55'� 2,822' FEL Y=5,959,100.03 N= 1,148.96 70'17'51.592" 70.2976644' ' 4,291' FSL 203 X= 600,155.96 E= 1,870.02 149'11'20.119" 149.1889219' 56'0' 2,522' FEL ' Y=5,959,100.23 N= 1,308.95 70'17'51.615" 70.2976708' 4,293' FSL 211i X- 599,995.99 E= 1,870.22 149'11'24.783"t 149.1902175' i 55.9' 2,682' FEL 212i . Y= 5,959,240.11 N= 1,141.47 70'17'52.969"F 70.2980469' 564' 4,431' FSL X= 600,163.45 E= 2,010.12 149'1"'19.847"i 149.1888464' 2,512' FEL Y=5,959,240.04 N= 1,271.44 70'17'52.985"! 70.2980514' 56.1' 4,433' FSL 213i X= 600,033.50 E= 2,010.05 149'11'23.635"J 149.1898986' 2,642' FEL Y=5,959,100.25 N= 1,293.88 70'17'51.613" 70.2976703' 56 2' 4,293' FSL 214i X= 600,011.06 E= 1,870.24 149'11'24.343" 149.1900953' ' 2667' FEL 215i Y=5,959,100.14 N= 1,354.05 70'17'51.620" 70.2976722' 56.2' 4,294' FSL X= 599,950.89 E= 1,870.13 149'11'26.097" 149.1905825' 2,727' FEL 216i Y=5,959,240.09 N= 1,316.42 70'17'52.992" 70.2980533' 1 4,433' FSL X= 599,988.52 E= 2,010.10 149'11'24.946"; 149.1902628° 56'02,687' FEL Y=5,959,239.98 N= 1,156.36 70'17'52.970" 70.2980472' 4,431' FSL 2171 X= 600,148.56 E= 2,009.99 149'11'20.281" 149.1889669' 56'2' 2,527' FEL Y=5,959,239.98 N= 1,391.46 70'17'53.000" 70.2980556' 4,434' FSL 2181 X= 599,913.48 E= 2.009.99 149'11'27.133" 149.1908703' 55.9' 2,762' FEL Y= 5,959,100.11 N= 1,429.03 70'17'51.630"1 70.2976750' 4,295' FSL SD X= 599,875.92 E= 1,870.10 149'11'28.283"I 149.1911897' 56.4' 12,802' FEL SG Y=5,959,100.09 N= 1,369.02 70'17'51.621" 70.2976725' 56.2' 4,294' FSL 1X= 599,935.92 E= 1,870.08 149'11'26.533" 149.1907036' 2,742' FEL ,Y= 5,959,100.01 N= 1,279.00 70'17'51.609" 70.2976692' 4,293' FSL SL X= 600,025.94 E= 1,870.00 149'11'23.910" 149.1899750' 56.3 2,652' FEL NK Y=5,959,239.85 N= 1,286.54 _ 70'17'52.985" 70.2980514' 4,433' FSL X= 600,018.40 _ E= 2,009.86 F 149°11'24.075"1 149.1900208' 56.0' 2,657' FEL NOTES; 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. I 4. ELEVATIONS ARE 8PX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213. 6. ALPHA NAME DESIGNATIONS REFER TO BPX DRILLING SURFACE SLOT NAME AS—BUILT WELL CONOLLG1Q$J; 34i, 40, 42, 50, 51i, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 212i, 2131, 2141, 215i, 216i, 217i. 2181, SD, SG, SL, NK __.,_....�.. F. ROber , BARNHART �,<,. '�)JACOBS bp r .. . PRA NC , _. .. ........... _ _pp FRlftt woZ 21 _ WOA Z—PAD s.FET � il�iOba ' WRD PAD EXPANSION ae Tia/I ISSUED FOR INFORMATION 200' AS—BUILT WELL CONDUCTORS BP AMERICA Leak-Off Test Summary Well Name: Z-65 Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) (ppg) 09/23/11 LOT 3,237.00 3,149.00 8.80 1,000.00 2,439.50 14.91 09/23/11 FIT 3,237.43 3,149.00 8.80 1,320.00 2,759.50 16.87 10/06/11 FIT 9,254.00 8,313.01 9.10 855.00 4,784.80 11.08 Page 1 of 1 North America -ALASKA- BP Page 1 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE (DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3 OOY52-C(5,106,544.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9.30.00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/15/2011 14:00 - 16:00 2.00 MOB P PRE PULL RIG OFF OF Z-113 SPOT ON MATS IN PREPERATION TO MOVE TO Z-65 16:00 - 20:30 4.50 MOB P PRE MOVE MATS FROM AROUND Z-113 AND PLACE FOR MOVE TO Z-65. II /SIMOPS:BEGIN CHANGING OUT BUS IN SCR ROOM. 20:30 - 23:00 2.50 MOB N RREP PRE CONTINUE TO CHANGE OUT BUS IN SCR ROOM. 23:00 - 00:00 1.00 MOB P • PRE CONTINUE TO MOVE RIG AROUND WELL ROW TO OTHER SIDE OF PAD. 9/16/2011 00:00 - 03:00 3.00 MOB P • PRE SPOT RIG OVER Z-65. INSTALL SHIMS AROUND THE SUB BASE AND LOWER THE RIG. 03:00 - 06:00 3.00 MOB P PRE SKID OUT THE RIG FLOOR.HOOK UP CABLES,U-TUBE FOR GAS BUSTER AND STEAM LINES.SPOT THE ROCK WASHER, FUEL TANK,WATER TANK AND ENVIROVAC. BUILD BERM AROUND THE RIG. 06:00 - 09:00 3.00 MOB P PRE HOOK UP SERVICE LINES,STEAM LINES, WATER LINES,MUD LINES,VAC LINE, BLEED LINE, CHOKE LINE AND MUD LINES TO THE RIG FLOOR. SPOT THE GEOLOGIST UNIT, MUD UNIT AND MWD UNIT. 09:00 - 12:00 3.00 MOB P PRE NIPPLE UP THE 20"HYDRIL, KNIFE VALVE, AND 4" CONDUCTOR VALVES. 12:00 - 22:30 10.50 MOB P PRE NIPPLE UP THE 16"DIVERTER LINES. INSTALL THE EZ TORQUE LIMIT SWITCH,RIG TONGS,ADJUST #1 DRAG CHAIN, INSPECT THE 4"XT-39 SAVER SUB. FUNCTION TEST THE DRAG CHAIN ALARMS#1 AND#2. RIG ACCEPTED @ 12:00 HRS 22:30 - 00:00 1.50 MOB P PRE PICK UP 4"XT-39 HW DP,1X1 THROUGH PIPE SHED. 9/17/2011 00:00 - 00:30 0.50 MOB P PRE PERFORM RIG EVACUATION DRILL DURING CREW CHANGE DUE TO WIND DIRECTION AND LOCATION OF PERSONNEL.THE MUSTER POINTS WERE SPLIT.GOOD COMMUNICATION TO ACCOUNT FOR PERSONNEL.HELD IN AAR TRUCK SHOP AFTER TO DISCUSS ANY FINDINGS.WSL CONTACTED PAD OPERATOR AND ODE VIA HARMONY.ALL PERSONNEL ACCOUNTED FOR IN 6 MIN. 00:30 - 01:00 0.50 MOB P PRE LUBRICATE AND SERVICE THE TOP DRIVE, BLOCKS,DRAWWORKS,BRAKES.TEST THE GAIN/LOSS ALARMS,COMPARE TOTCO PVT TO MANUAL STRAP. Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 2 of 32 Operation Summary Report Common Well Name:Z-65 AFE No • Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:00 - 04:30 3.50 MOB P PRE CONTINUE PICKING UP 4"XT-39 DRILL PIPE FROM SHED,RACKING BACK IN DERRICK. -LUSCHE'S CREW HELD KICK WHILE TRIPPING DRILL,CRT 125 SEC. 04:30 - 05:00 0.50 MOB P PRE PERFORM DERRICK INSPECTION. 05:00 - 06:00 1.00 DRILL P SURF MOBILIZE BHA TOOLS TO THE RIG FLOOR. 06:00 - 07:30 1.50 DRILL P SURF PJSM MAKE UP BHA#1 AS FOLLOWS: -12.25"HUGHES VM-3 BIT SERIAL#5193890 -9.625"SP MUD MOTOR WITH A 2.12 DEG BEND -NON-MAG UBHO -NON-MAG PONY COLLAR -12.25"NON MAG STABILIZER -NON-MAG BOTTLENECK CROSSOVER -CROSSOVER _ 07:30 - 09:30 2.00 BOPSUR P SURF PERFORM DIVERTER TEST ANNULAR CLOSED IN 18 SEC.ACCUMULATOR TEST WAS 3000PSI BEFORE FUNCTIONING, 1900PSI AFTER FUNCTIONING,21 SEC TO 200PSI PRESSURE UP,144 SEC TO FULL PRESSURE.4 BOTTLES AT 2150PS1. 09:30 - 12:00 2.50 DRILL P SURF PICK UP STANDS OF 4"HWDP AND RUN IN THE HOLE AND TAG UP AT 110'.DRILL FROM 110'-141'.RIG UP GYRO AND CONTINUE DRILLING FROM 141'-235'. UP WT 60K/DOWN WT 60K/ROT WT 60K.4ORPMS WITH 2K TORQUE ON AND 1K TORQUE OFF.8K WOB WHILE PUMPING AT 450GPM WITH 340PS1 OFF/42OPSI ON. 12:00 - 00:00 12.00 DRILL P SURF DIRECTIONALLY DRILL FROM 235'-790' TAKING GYRO SURVEYS EVERY 90'.40RPM WITH 1K TORQUE ON/1K TORQUE OFF. PUMPING AT 500GPM WITH 880PS1 ON/ 770PS1 OFF. 18K WOB. UP WT 70K/DOWN WT 70K/ROT WT 70K. -ADT 7.47/AST 2.22/ART 5.25 9/18/2011 00:00 - 03:30 3.50 DRILL P SURF DIRECTIONALLY DRILL FROM 790'TO 965' TAKING GYRO SURVEYS EVERY 90'.40 RPM WITH 1K TORQUE ON/1K TORQUE OFF. PUMPING AT 450 GPM WITH 720 PSI ON/640 PSI OFF. 18K WOB. UP WT.70K/DOWN WT. 70K/ROT WT. 70K 03:30 - 04:00 0.50 DRILL P SURF PUMP 55 BBLS AT 450 GPM WITH 640 PSI. 04:00 - 05:00 1.00 DRILL P SURF PULL OUT OF THE HOLE ON ELEVATORS TO CHANGE OUT THE BHA.UP WT.76K/DOWN WT 75K. Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 3 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time: 9/17/2011 9.30:OOAM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:00 - 09:30 4.50 DRILL P SURF DRAIN THE MOTOR AND READJUST THE BEND TO 1.5 DEGREE.LAY DOWN THE UBHO SUB.PICK UP BHA#2AS FOLLOWS: -12.25"HUGHES VM-3 BIT SERIAL#5200095 -9.625"SP MOTOR WITH A 1.5 DEGREE BEND -NON-MAG PONY DRILL COLLAR 12.25"NON-MAG STABILIZER ARC8 -POWERPULSE MWD -12.25"NON-MAG STABILIZER -NON-MAG BOTTLENECK CROSS OVER NON-MAG DRILL COLLAR -NON-MAG DRILL COLLAR -8.75"NON-MAG STABILIZER NON-MAG DRILL COLLAR -FLOAT SUB -5"HWDP -6.5"HYDRAULIC JARS -5"HWDP -CROSS OVER -4"HWDP(21 JTS) 09:30 - 10:00 0.50 DRILL P SURF RUN IN THE HOLE FROM 302'-844'AND WASH DOWN TO 934'. -LUSCHE'S CREW HELD FIRE DRILL,CRT 75 SEC. 10:00 - 10:30 0.50 DRILL P SURF TAKE CHECK SHOTS WITH THE MWD. 10:30 - 12:00 1.50 DRILL P SURF DIRECTIONALLY DRILL FROM 965'TO 1028'. PUMPING AT 450 GPM WITH 1250 PSI ON/1000 PSI OFF. 15K WOB.UP WT. 90K/DOWN WT.90K/ROT WT.88K AST1.63/ART.64/ADT2.27 12:00 - 00:00 12.00 DRILL P SURF DIRECTIONALLY DRILL FROM 1028'TO 1865'. PUMPING AT 400 GPM WITH 1170 PSI ON/1020 PSI OFF. 12K-30K WOB.UP WT. 107K/DOWN WT.100K/ROT WT. 102K -AST 5.8/ART 3.04/ADT 8.8 9/19/2011 00:00 - 03:00 3.00 DRILL P SURF BACK REAM FROM 1865'-302'. PUMPING AT 400 GPM WITH 980 PSI WITH ROT WT.90K AND 3-5K TORQUE. 03:00 - 05:00 2.00 DRILL P SURF RUN IN THE HOLE TO 1778'AND WASH DOWN TO 1692'AT 400 GPM WITH 980 PSI.WORK TIGHT SPOT AT 1692',1725',AND 1760'. 05:00 - 12:00 7.00 DRILL P SURF DIRECTIONAL DRILL FROM 1865'-2797'. UP WT. 122K/DOWN WT. 102K/ROT WT112K. 60 RPM WITH 4K TORQUE ON/3K TORQUE OFF. PUMPING 650 GPM WITH 2480 PSI OFF/ 2540 PSI.WOB 20K. -AST 1.33/ART 3.31/ADT 4.64 12:00 - 16:00 4.00 DRILL P SURF DIRECTIONAL DRILL FROM 2797'-3247'. UP WT. 128K/DOWN WT. 110K/ROT WT 116K. 60 RPM WITH 5K TORQUE ON/3K TORQUE OFF. PUMPING 500 GPM WITH 2690 PSI OFF/ 2810 PSI.WOB 20K. -AST .11 /ART 2.80/ADT 2.91 Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 4 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE (DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 18:00 2.00 DRILL P SURF BACKREAM FROM 3247'TO 1584'WITH 650 GPM AND 100 RPM WITH 1800 PSI. -MUD WT IN AND OUT 9.4 PPG 18:00 - 19:00 1.00 DRILL P SURF FLOW CHECK WELL FOR 10 MINUTES. RUN IN THE HOLE FROM 1584'TO 3247'. -MUD WT IN AND OUT 9.4 PPG 19:00 - 21:00 2.00 DRILL P SURF CIRCULATE TO CLEAN UP THE HOLE AND CONDITION THE MUD AT 650 GPM WITH 2520 PSI. ROTATING AT 100 RPM WITH 5K TORQUE WORKING THE PIPE 5'TO STAY IN THE SHALE. MUD WT IN AND OUT 9.4 PPG 21:00 - 22:00 1.00 DRILL P SURF PULL OUT OF THE HOLE ON ELEVATORS FROM 3247'TO 2238'. STARTED SEEING OVERPULL OF 15K-35K. 22:00 - 23:00 1.00 DRILL P SURF PUMP OUT OF THE HOLE FROM 2238'TO 1865'AT 550 GPM WITH 1460 PSI. SEE OVERPULL AND HOLE DRAG FALL OFF AFTER BOTTOMS UP CLEANED UP. 23:00 - 00:00 1.00 DRILL P SURF PULL OUT OF THE HOLE ON ELEVATORS FROM 1865'TO 935'. 9/20/2011 00:00 - 01:00 1.00 DRILL P SURF CONTINUE TO PULL OUT OF THE HOLE FROM 935'-302'. 01:00 - 03:00 2.00 DRILL P SURF RACK BACK 1 STAND OF 5"HWDP WITH THE JARS,1 STAND OF 6.75"DC'S/STAB. LAY DOWN XO AND STAB. DRAIN THE BIT AND RINSE OFF. BREAK OFF THE BIT AND LAY DOWN THE POWER PULSE,ARC8,STAB, PONY COLLAR,PULL THE FLOAT AND LAY DOWN THE MOTOR. BIT GRADE:3-3-WT-A-1-1-NO-TD 03:00 - 04:00 1.00 CASING P SURF CLEAR THE RIG FLOOR OF ALL TOOLS NOT NEEDED FOR UPCOMING OPERATIONS. 04:00 - 07:30 3.50 CASING P SURF RIG UP TO RUN 9-5/8"L-80 40#SURFACE CASING -MOBILIZE CENTRALIZERS AND 10' PUP JOINT TO RIG FLOOR -RIG UP FRANKS TOOL,350 TON ELEVATORS AND SLIPS -RIG UP DOYON CASING POWER TONGS AND SCAFFOLDING -PERFORM DUMMY RUN WITH HANGER AND LANDING JOINT --MARK LANDING JOINT AT RIG FLOOR 07:30 - 10:30 3.00 CASING P SURF RUN 9-5/8"40#L-80 BTC SURFACE CASING -TORQUE CONNECTIONS TO MARK --AVG MAKEUP TORQUE:9,600 FT-LBS -1 BOW-SPRING CENTRALIZER PER JOINT FOR FIRST 25 JOINTS ,10:30 - 14:00 3.50 CASING N SFAL 1,159.00 SURF REPAIR PIPE SKATE Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 5 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 21:00 7.00 CASING P SURF CONTINUE RUNNING 9-5/8"40#L-80 BTC SURFACE CASING FROM 1,159'TO 3,200'MD -1 BOW SPRING CENTRALIZER PER JOINT ON JOINTS 52-54 --COVERS SV6 -STARTED TAKING WEIGHT AT JT 61 (2,746' MD)WITH NO INCREASE IN UP WT. -WASHED EVERY OTHER JOINT DOWN FROM JT 61 TO JT 79 --5 BPM,300 PSI 21:00 - 22:30 1.50 CASING P SURF MAKE UP HANGER AND LANDING JOINT TO CASING STRING WASH DOWN CASING STRING TO 3,235'MD -5 BPM,300 PSI -BOTTOMS-UP VOLUME CIRCULATED WHILE WASHING CASING TO TD LAND CASING STRING RIG DOWN FRANKS TOOL AND RIG UP CEMENT HEAD 22:30 - 23:30 1.00 CEMT P SURF CIRCULATE AND CONDITION HOLE FOR CEMENT JOB -STAGE UP PUMPS TO 8 BPM,330 PSI -CIRCULATE 2 BOTTOMS-UP WHILE CONDITIONING HOLE HOLD PJSM WITH RIG CREW, SCHLUMBERGER CEMENT CREW,CH2M HILL TRUCK PUSHERS,AND MI MUD ENGINEER WHILE CONDITIONING HOLE 23:30 - 00:00 0.50 CEMT P SURF CEMFNT 9-5/8"SURFACF CASING WITH , RECIPROCATION AS FOLLOWS: ''•✓J!(Jv 21:50 BATCH MIX 10.0 PPG MUD PUSH II S 23:24 FINISH CIRCULATING WITH RIG. LINE 644 UP TO SCHLUMBERGER CEMENTERS 23:26 PUMP 5 BBLS 10.0 PPG MUDPUSH II TO FLOOD LINES TO CEMENT HEAD 23:29 TEST CEMENT TRUCK KICKOUTS. INCREASE AND TEST LINES TO 4,000 PSI 23:34 PUMP 95 BBLS 10.0 PPG MUDPUSH II (100 BBLS TOTAL) -10.0 PPG MUDPUSH II -5.1 BPM,300 PSI TREATING PRESSURE 23:58 FINISH 10.0 PPG MUDPUSH II Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 6 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/21/2011 00:00 - 03:00 3.00 CEMT P SURF CONTINUE CEMENTING 9 5/8"SURFACE CASING WITH RECIPROCATION AS FOLLOWS: CAI/JC 00:00 DROP BOTTOM PLUG.POSITIVE INDICATION PLUG LEFT CEMENT HEAD 00:01 START BATCH MIXING LITECRETE LEAD CEMENT 00:13 LITECRETE LEAD CEMENT TO WEIGHT 00:14 PUMP 436.5 BBL 11.0 PPG DEEPCRETE LEADCMT@5RPM _ -11.0 PPG DEEPCRETE LEAD -5.1 BPM,400 PSI TREATING PRESSURE 00:43 LAND CASING HANGER ON LANDING RING AS MUD PUSH II EXITS SHOE 00:46 RESUME RECIPROCATING CASING 01:06 BOTTOM PLUG LANDED AND SHEARED DISK AT 700 PSI 01:19 LAND CASING HANGER ON LANDING RING AS LEAD CEMENT EXITS SHOE 01:47 FINISHED WITH LEAD CEMENT 01:47 BATCH MIX 15.8 PPG TAIL CEMENT 01:50 TAIL CEMENT TO WEIGHT 01:51 SWAP TO TAIL CEMENT PUMP 90.0 BBLS 15.8 PPG CLASS G TAIL CEMENT AWAY AT 5 BPM -15.8 PPG CLASS G -5.0 BPM,720 PSI TREATING PRESSURE 02:11 STOP PUMPING CEMENT 02:12 DROP TOP PLUG.POSITIVE INDICATION PLUG LEFT CEMENT HEAD 02:13 SCHLUMBERGER CEMENTERS WASH UP ON TOP OF PLUG WITH 10 BBLS WATER 02:15 BEGIN DISPLACEMENT WITH RIG PUMP -DISPLACE WITH 9.4 PPG DRILLPLEX MUD -PUMP 8 BPM,400 PSI -CEMENT TO SURFACE 1,800 STROKES INTO DISPLACEMENT 02:24 DROP RATE TO 5 BPM,200 PSI DUE TO THICK MUD RETURNING 02:47 DROP RATE TO 4 BPM,700 PSI DUE TO THICKER MUD RETURNING -MUD/CEMENT INTERFACE 02:57 SLOW PUMP RATE TO 2 BPM,@ 2,185 STROKES 840 PSI FOR PLUG BUMP 03:01 BUMP PLUG @ 2,282 STROKES WITH 940 PSI -CADE PRESSURE 590 PSI --PRESSURES NOT WITHIN 15% -INCREASE PRESSURE TO 1,500 PSI -HOLD FOR 2 MINUTES 03:05 BLEED OFF PRESSURE AND CHECK FLOATS, FLOATS HOLDING CEMENT IN PLACE AT 03:01 HRS LEAD CEMENT REACHES 500 PSI COMPRESSIVE STRENGTH IN 19 HRS 17 MIN TAIL CEMENT REACHES 1,000 PSI COMPRESSIVE STRENGTH IN 21 HRS 29.5 MIN Printed 11/14/2011 1:35:53PM NorthAmerica -ALASKA- BP Page 7 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) [ Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description Operations (hr) (ft) CEMENT PUMPED: -1,297 SX OF 11.0 PPG DEEPCRETE LEAD AT 1.89 CUFT/SX -436 SX OF 15.8 PPG G-BLEND TAIL AT 1.16 C U FT/SX -EST.TOC=SURFACE -Fp RR! C CFMAFNT RACK TO SURFACE_ 03:00 - 03:30 0.50 CASING P SURF RIG UP AND PRESSURE TEST CASING TO 3,500 PSI FOR 5 MINUTES -LOST 20 PSI OVER 5 MINUTE INTERVAL BLEED OFF PRESSURE 03:30 - 08:00 4.50 CASING P SURF RIG DOWN CEMENT HEAD BACK OUT LANDING JOINT AND LD SAME FLUSH OUT DIVERTER WORK ANNULAR SEVERAL TIMES AND FLUSH AGAIN CLEAN AND CLEAR RIG FLOOR OF CASING RUNNING EQUIPMENT 08:00 - 11:00 3.00 CASING P SURF RIG DOWN DIVERTER LINES, FLOWLINE CROSSOVERS AND FLOWLINE. LAY DOWN RISER NIPPLE DOWN ANNULAR, KNIFE VALVE,AND DIVERTER SPOOL 11:00 - 14:30 3.50 .. WHSUR P SURF CALL PAD OPERATOR FOR ORIENTATION INSTALL FMC 11"THROUGHBORE GEN 5 WELLHEAD PER FMC FIELD TECH TEST SEAL VOID TO 1,150 PSI -GOOD TEST 14:30 - 21:00 6.50 BOPSUR P SURF INSTALL BOP STACK -REMOVE CHOKE LINE EXTENSION AND INSTALL SHORTER EXTENSION INSTALL PITCHER NIPPLE AND FLOWLINE 21:00 - 00:00 3.00 BOPSUR P SURF INSTALL LOWER TEST PLUG IN WELLHEAD RIG UP AND PERFORM BODY TEST ON CHOKE MANIFOLD -REPLACED VALVES 2,3,7,AND 10 ON CHOKE MANIFOLD 9/22/2011 00:00 - 03:00 3.00 BOPSUR P SURF PERFORM BODY TEST ON CHOKE MANIFOLD -REPLACED VALVES 2,3,7,AND 10 ON CHOKE MANIFOLD TEST REPLACED CHOKE VALVES TO CONFIRM PROPER INSTALLATION 03:00 - 04:00 1.00 BOPSUR P SURF RIG UP TO PRESSURE TEST BOPE 04:00 - 08:00 4.00 BOPSUR P SURF TEST BOPE PER AOGCC/BP REGULATIONS -250 PSI LOW,3,500 PSI HIGH -5 MINUTES EACH TEST -CHART ALL TESTS A' -USE 4"TEST JOINT TEST WITNESSED BY DOYON TOOLPUSHERS RICHARD JENNINGS AND BOBBY INGRAM BP WSLS FRANK ROACH AND JOEY LEBLANC AOGCC INSPECTOR MATT HERRERA WAIVED WITNESS OF BOP TEST 08:00 - 08:30 0.50 BOPSUR P SURF RIG DOWN BOP TESTING EQUIPMENT 08:30 - 10:00 1.50 WHSUR P SURF PULL TEST PLUG -HAD TO CLEAN OUT PROFILE TO REMOVE TEST PLUG -PLUG HAD SAND/CLAY ON TOP 10:00 - 10:30 0.50 WHSUR P SURF INSTALL LONG WEAR RING IN WELLHEAD Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 8 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:30 - 13:00 2.50 CASING P SURF RIG UP AND TEST 9-5/8"SURFACE CASING -250 PSI LOW FOR 5 MINUTES -3,500 PSI FOR 30 MINUTES -4.3 BBLS TO REACH TEST PRESSURE OF 3,550 PSI -PRESSURE AT 15 MINUTES:3,530 PSI -PRESSURE AT 30 MINUTES:3,520 PSI 4.3 BBLS BLED BACK POST-TEST PRESSURE TEST RESULTS SENT TO ACTING WTL JOHN RALL FOR AUTHORIZATION TO PROCEED 13:00 - 13:30 0.50 CASING P SURF RIG DOWN TEST EQUIPMENT BLOW DOWN CHOKE MANIFOLD,CHOKE AND KILL LINES 13:30 - 14:00 0.50 CASING P SURF CLEAR RIG FLOOR INSTALL SHORT BALES ON TOP DRIVE TRANSFER JAR STAND AND 4"HWDP FROM OFF-DRILLER'S SIDE TO DRILLER'S SIDE OF DERRICK 14:00 - 14:30 0.50 CASING _ P SURF PJSM ON SINGLING IN WITH DRILLPIPE FROM PIPE SHED MAKE UP 3-1/2"MULSHOE 14:30 - 15:00 0.50- - CASING P SURF -.LUBRICATE RIG 15:00 - 16:30 1.50 CASING N RREP SURF REPAIR HYDRAULIC LINE ON PIPE SKATE RECEIVED AUTHORIZATION TO PROCEED WITH DRILLING OPERATIONS BY ACTING WTL JOHN RALL AT 16:04 16:30 - 20:00 3.50 CASING P SURF RIH WITH DRILLPIPE SINGLES FROM PIPE SHED TO 2,890'MD 20:00 - 20:30 0.50 CASING P SURF PULL ONE STAND OF DRILLPIPE -DRILLPLEX MUD TOO THICK TO DRAIN FROM DRILLPIPE CIRCULATE SURFACE TO SURFACE -9.5 BPM,570 PSI -9.2 PPG MUD WT IN AND OUT 20:30 - 22:00 1.50 CASING P SURF POOH FROM 2,890'TO SURFACE -RACK BACK DRILLPIPE IN DERRICK 22:00 - 00:00 2.00 CASING P SURF RIH WITH DRILLPIPE SINGLES FROM SURFACE TO 1,116'MD RIH ON STANDS FROM 1,116'TO 2,885'MD 9/23/2011 00:00 - 01:30 1.50 CASING P SURF CIRCULATE AND CONDITION DRILLPLEX MUD -9.0 BPM,630 PSI INITIAL CIRCULATING PRESSURE -580 PSI FINAL CIRCULATING PRESSURE -9.3 PPG MUD WT IN AND OUT FLOW CHECK WELL -NO FLOW 01:30 - 02:30 1.00 CASING P SURF POOH FROM 2,885'TO SURFACE -RACK BACK DRILLPIPE IN DERRICK LAY DOWN MULESHOE 02:30 - 03:30 1.00 CASING P SURF MOBILIZE BHA COMPONENTS TO RIG FLOOR HOLD PJSM ON PICKING UP BHA Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 9 of 32 Operation Summary Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 06:30 3.00 CASING P SURF MAKE UP BHA#3 PER SCHLUMBERGER DIRECTIONAL DRILLERS AS FOLLOWS: -8-3/4"HYCALOG DTX619M-D2 PDC BIT WITH 6 13/32"JETS -1.50 DEG MUD MOTOR WITH PORTED FLOAT ARC6 -POWEPULSE MWD SUITE -ADN6 -2 6-3/4"NON-MAG DRILL COLLARS -8-3/4"NON-MAG INTEGRAL BLADE STABILIZER -6-3/4"NON-MAG DRILL COLLAR -6-3/4"SAVER FLOAT SUB -1 JT 5"HWDP 6-1/2"SMITH HYDRA JARS -WELL COMMANDER CIRC SUB ASSEMBLY -1 JT 5"HWDP -4-1/2"IF PIN X 4"XT-39 BOX CROSSOVER -21 JTS4"HWDP TOTAL BHA LENGTH:938.03' 06:30 - 10:00 3.50 CASING P SURF SHALLOW TEST MWD TOOLS SINGLE IN HOLE WITH DRILLPIPE FROM PIPESHED FROM 938'TO 3,087'MD -INSTALL 8-3/4"OD GHOST REAMER AT 2,894'MD HELD D1 KICK WHILE TRIPPING DRILL 10:00 - 11:30 1.50 CASING P SURF SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE AND BLOCKS 11:30 - 13:00 1.50 CASING P SURF CHANGE OUT SAVER SUB IN TOP DRIVE 13:00 - 13:30 0.50 CASING P SURF OBTAIN SLOW PUMP RATES ON MUD PUMP #2 3,086'MD,3,006'TVD,9.4 PPG DRILLPLEX MUD -20 SPM:260 PSI;30 SPM:370 PSI PUW 130K,SOW 100K ROT 115K 13:30 - 15:00 1.50 CASING P SURF WASH DOWN AND TAG FLOAT COLLAR AT 3,157'MD DRILL OUT FLOAT COLLAR AND SHOETRACK TO 10'ABOVE FLOAT SHOE -10 BPM,1,840 PSI -40 RPM,TQ 4K 15:00 - 15:30 0.50 CASING P SURF CIRCULATE BOTTOMS-UP -10 BPM,1,850 PSI -40 RPM,TQ 4.5K 15:30 - 16:00 0.50 CASING P SURF EMPTY PITS 1 AND 2 RIG UP TO DISPLACE DRILLPLEX MUD TO LSND 16:00 - 16:30 0.50 CASING P SURF PUMP 30 BBL HIGH VISCOSITY SWEEP AHEAD DISPLACE WELL FROM 9.4 PPG DRILLPLEX TO 8.8 PPG LSND -ROTATE AND RECIPROCATE DRILLSTRING -10.5 BPM,1,860 PSI -30 RPM,TQ 4K Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 10 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:30 - 18:00 1.50 CASING P SURF CLEAN PITS 1,2,AND TRIP TANK TAKE ON REMAINING 8.8 PPG LSND FOR HOLE SECTION 18:00 - 18:30 0.50 CASING P SURF . OBTAIN SLOW PUMP RATES WITH MUD PUMP#2 3,230'MD,3,091'TVD,8.8 PPG LSND MUD -20 SPM:240 PSI;30 SPM:300 PSI DRILL OUT REMAINING SSHOETRACK, RATHOLE,AND 20'NEW 8-3/4"HOLE FROM 3,230'TO 3,267'MD -440 GPM,1,850 PSI -40 RPM,TQ 4.5K 18:30 - 19:00 0.50 CASING P SURF CIRCULATE SURFACE TO SURFACE -440 GPM,1,100 PSI -MUD WT IN AND OUT 8.8 PPG 19:00 - 20:00 1.00 CEMT P SURF RIG UP AND PERFORM LOT -SHOE DEPTH:3,237'MD,3,194'TVD -MUD WT 8.8 PPG -PRESSURE DEVIATED FROM STRAIGHT LINE AT 1,320 PSI -STARTED LOSING PRESSURE(INJECTING) AT 1,340 PSI -2.5 BBLS TO REACH INJECTION t.ti� -1.0 BBLS RECOVERED AT END OF TEST LOT EMW WITH 1,320 PSI: 14.86 PPG RESULTS SENT IN AND AUTHORIZATION TO PROCEED GRANTED BY ODE CODY RYMUT AT 20:04. 20:00 - 00:00 4.00 DRILL P INTI OBTAIN ECD BASELINE -ECD WITH 8.8 PPG MUD:9.4 PPG EMW DIRECTIONALLY DRILL FROM 3,267'TO 3,738' MD -PUW 130K,SOW 110K, ROT 120K -604 GPM,2,250 PSI ON,1,980 PSI OFF -80 RPM,TQ 5K ON,3K OFF -10K WOB -MUD WT IN:8.8 PPG,MUD WT OUT:8.8 PPG -CALCULATED ECD:9.42 PPG EMW,ACTUAL ECD:9.58 PPG EMW ART 1.26,AST 0.33,ADT 1.59 ADT FOR LAST 24 HRS: 1.59 SPR @ 20:00: DEPTH 3,237'MD,3,149'TVD, ✓ MW 8.8 PPG MP#1:20 SPM:240 PSI;30 SPM:300 PSI MP#2:20 SPM:230 PSI;30 SPM:280 PSI Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 11 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/24/2011 00:00 - 12:00 12.00 DRILL P INTI DIRECTIONALLY DRILL FROM 3,738'TO 4,758' MD -PUW 148K,SOW 125K, ROT 135K -600 GPM,2,570 PSI ON,2,410 PSI OFF -80 RPM,TQ 6K ON,4K OFF -10K WOB -MUD WT IN:8.9 PPG,MUD WT OUT:8.9 PPG -CALCULATED ECD:9.52 PPG EMW,ACTUAL ECD:9.61 PPG EMW ART,2.85,AST 2.98,ADT 5.83 SPR @ 00:00: DEPTH 3,738'MD,3,621'TVD, MW 8.9 PPG MP#1:20 SPM:250 PSI;30 SPM:310 PSI MP#2:20 SPM:250 PSI;30 SPM:300 PSI SPR @ 03:49:DEPTH 4,289'MD,4,161'TVD, MW 8.9 PPG MP#1:20 SPM:280 PSI;30 SPM:330 PSI MP#2:20 SPM:280 PSI;30 SPM:330 PSI SPR @ 11:30: DEPTH 4,758'MD,4,627'TVD, MW 8.9 PPG MP#1:20 SPM:280 PSI;30 SPM:340 PSI MP#2:20 SPM:280 PSI;30 SPM:340 PSI PUMPED HIGH-VIS SWEEP AT 3,865'MD -INCREASE IN CUTTINGS OVER SHAKER WITH SWEEP BACK AT SURFACE -CONTINUE PUMPING HIGH-VIS SWEEPS EVERY 500' HELD D2 KICK WHILE TRIPPING DRILL 12:00 23:00 11.00 DRILL P INTI DIRECTIONALLY DRILL FROM 4,758'TO 5,785' MD -PUW 163K,SOW 130K, ROT 140K -600 GPM,3,200 PSI ON,2,630 PSI OFF -60 RPM,TQ 8K ON,6K OFF -15K WOB -MUD WT IN:8.9 PPG,MUD WT OUT:8.9 PPG -CALCULATED ECD:9.55 PPG EMW,ACTUAL ECD:9.88 PPG EMW ART 3.48,AST 3.35,ADT 6.83 ADT FOR LAST 24 HRS: 12.66 SPR @ 16:30: DEPTH 5,223'MD,5,066'TVD, MW 8.9 PPG MP#1:20 SPM:310 PSI;30 SPM:370 PSI MP#2:20 SPM:320 PSI;30 SPM:380 PSI HELD D2 KICK WHILE DRILLING DRILL 23:00 - 00:00 1.00 DRILL P INTI CIRCULATE HIGH-VIS SWEEP -600 GPM,3,000 PSI -60 RPM,TQ 5K -NO INCREASE IN CUTTINGS OBSERVED WITH SWEEP BACK AT SURFACE -TAKE ON 14.7 PPG SPIKE FLUID TO RIG WHILE CIRCULATING SWEEP Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 12 of 32 Operation Summary Report Common Wet Name.Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:9/17/2011 9:30:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/25/2011 00:00 - 01:00 1.00 DRILL P INTI CIRCULATE AND MUD UP WITH 14.7 PPG SPIKE FLUID -ROTATE AND RECIPROCATE DRILLSTRING -600 GPM,3,070 PSI -50 RPM,TQ 4K -REACHED 9.5 PPG IN AND OUT AFTER 1 CIRCULATION 01:00 - 02:00 1.00 DRILL P INTI OBTAIN SLOW PUMP RATES SPR @ 00:00:DEPTH 5,785'MD,5,547'TVD, MW 9.5 PPG MP#1:20 SPM:380 PSI;30 SPM:470 PSI MP#2:20 SPM:380 PSI;30 SPM:460 PSI DIRECTIONALLY DRILL AHEAD 1 STAND FROM 5,785''TO 5,875'MD -PUW 163K,SOW 130K,ROT 140K ;550 GPM,3,310 PSI ON,2,800 PSI OFF -60 RPM,TQ 7K ON,5K OFF 10K WOB WEIGHTING UP ON-THE-FLY FROM 9.5 PPG START OBSERVING LOSSES AT 5,800'MD DRILL STAND DOWN TO 5,875'MD -DYNAMIC LOSSES AT 550 GPM:70 BBUHR FINAL MUD WT IN:10.1 PPG,MUD WT OUT: 9.9 PPG -TARGET MUD WT:10.2 PPG 02:00 - 04:00 2.00 DRILL N DPRB 5,875.00 INTI SHUT DOWN AND ESTABLISH STATIC LOSS RATE ✓ -STATIC LOSSES AT 30 BBUHR RACK BACK ONE STAND DRILLPIPE AND MONITOR LOSS RATE WITH HOLE-FILL PUMP (PUMP OVER THE TOP) -LOSSES HOLDING STEADY AT 30 BBUHR STATIC BUILD LCM PILL WHILE MONITORING LOSSES 04:00 - 05:00 1.00 DRILL N DPRB 5,875.00 INTI SPOT 20 BBL LCM PILL AT 5,875'MD -190 GPM,1,200 PSI PULL ABOVE PILL AND MONITOR LOSSES WHILE BUILDING MUD VOLUME 05:00 - 05:30 0.50 DRILL N DPRB 5,875.00 INTI RIH FROM 5,404'TO 5,875'MD 05:30 - 06:00 0.50 DRILL N DPRB 5,885.00 INTI DRILL AHEAD FROM 5,875 TO 5,885'MD -LOST 75 OF 81 BBLS PUMPED WHILE DRILLING 10' 06:00 - 16:00 10.00 DRILL N DPRB 5,885.00 INTI PULL ONE STAND TO MONITOR LOSSES WITH TRIP TANK BUILD 80 LB/BBL CONVENTIONAL LCM PILL Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 13 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE (DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(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 DRILL N DPRB 5,885.00 INTI DROP WELL COMMANDER FUNCTIONING BALL -PUMP AT 84 GPM -PRESSURE UP TO 1,500 PSI.HOLD FOR 30 SECONDS -INCREASE PRESSURE TO 2,000 PSI.WELL COMMANDER FUNCTIONED OPEN DROP SHUTOFF VALVE TO ISOLATE BHA FROM FLOW PUMP 80 LB/BBL LCM PILL AND SPOT OUTSIDE OF WELL COMMANDER CIRC SUB -280 GPM,690 PSI MONITOR WELL AFTER PILL SPOTTED -WELL STATIC DROP FUNCTIONING BALL AND CLOSE WELL COMMANDER 17:00 - 18:00 1.00 DRILL N DPRB 5,885.00 INTI CLOSE TOP RAMS SQUEEZE 5 BBLS DOWN BACKSIDE -SQUEEZING LCM PILL INTO LOSS ZONE -50 PSI BACKSIDE SQUEEZE PRESSURE ACHIEVED SHUT IN AND MONITOR SQUEEZE PRESSURE -30 PSI HELD ON BACKSIDE BLEED OFF PRESSURE. LINE UP TO CHOKE MANIFOLD SQUEEZE ADDITIONAL 5 BBLS DOWN BACKSIDE -SQUEEZING LCM PILL INTO LOSS ZONE ✓ -60 PSI BACKSIDE SQUEEZE PRESSURE ACHIEVED SHUT IN AND MONITOR SQUEEZE PRESSURE -30 PSI HELD ON BACKSIDE BLEED OFF PRESSURE -BLED BACK 1 BBL OPEN UP WELL,BLOW DOWN CHOKE AND KILL LINES AND CHOKE MANIFOLD MONITOR WELL -WELL STATIC 18:00 - 19:00 1.00 DRILL P INTI DRILL AHEAD FROM 5,885'TO 5,901'MD • -GAIN/LOSS SHOWING GAIN AFTER LOSING 12 BBLS SHUT DOWN AND MONITOR WELL -WELL FLOWING Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 14 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 21:30 2.50 DRILL N DPRB 5,901.00 INTI CLOSE ANNULAR PREVENTOR AND MAKE LEVEL 0 NOTIFICATIONS -SIDP 40 PSI,SICP 40 PSI -PRESSURES STABLE WHILE MAKING NOTIFICATIONS PERFORM EXHALE TEST TO DETERMINE WELLBORE BREATHING LINE UP TO BLEED BACK THROUGH CHOKE MANIFOLD AND GAS BUSTER TO TRIP TANK -BLEED BACK 5 BBLS --5 BBLS BLED BACK IN 9 MIN,41 SEC -MONITOR PRESSURE BUILD-UP FOR 10 MINUTES --PRESSURE REACHED 30 PSI IN 1 MINUTE --HELD AT 30 PSI FOR REMAINING 9 MINUTES -BLEED BACK 5 BBLS --5 BBLS BLED BACK IN 15 MIN,58 SEC -MONITOR PRESSURE BUILD-UP FOR 10 MINUTES --PRESSURE REACHED 20 PSI IN 1 MINUTE --HELD AT 20 PSI FOR REMAINING 9 MINUTES NOTIFY ACTING ROTARY WTL JOHN RALL OF RESULTS -WELLBORE BREATHING CONFIRMED RECEIVED AUTHORIZATION TO BLEED BACK THROUGH CHOKE MANIFOLD AND GAS BUSTER TO TRIP TANK UNTIL NO FLOW OBSERVED -5.5 BBLS BLED BACK IN 29 MIN,22 SEC -NO FLOW OBSERVED AFTER 5.5 BBLS BLED BACK -OPEN UP WELLBORE BLOW DOWN CHOKE AND KILL LINES AND CHOKE MANIFOLD 21:30 - 00:00 2.50 DRILL P INTI DRILL AHEAD FROM 5,901'TO 5,969'MD -PUW 165K,SOW 130K, ROT 146K -400 GPM,2,100 PSI ON,1,850 PSI OFF -40 RPM,TQ 5K ON,2K OFF -15K WOB -9.9 PPG MUD WT IN AND OUT ART:2.05 AST:0.45 ADT:2.5 ADT FOR LAST 24 HRS:3.0 LOSSES FOR LAST 24 HOURS:615 BBLS Printed 11/14/2011 1:35:53PM North America-ALASKA- BP Page 15 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/26/2011 00:00 - 03:00 3.00 DRILL P INTI DRILL AHEAD FROM 5,969'TO 6,065'MD -PUW 165K,SOW 130K, ROT 145K -490 GPM,2,730 PSI ON,2,200 PSI OFF -50 RPM,TQ 6K ON,4K OFF 10K WOB -10.0 PPG MUD WT IN AND OUT FINGERPRINT CONNECTIONS TO CONFIRM WELL STILL BREATHING ART:2.05 AST:0.00 ADT:2.05 WELL STILL TAKING LOSSES WHILE DRILLING -LOSING 95-100 BBLS PER STAND -RECOVERING 16 BBLS PER CONNECTION SPR @ 03:00: DEPTH 6,062'MD,5,727'TVD, MW 10.0 PPG MP#1:20 SPM:360 PSI;30 SPM:470 PSI _ MP#2:20 SPM:360 PSI;30 SPM:470 PSI 03:00 - 04:30 1.50 DRILL N DPRB 6,065.00 INTI CONSULT WITH WTL AND ODE ON PLAN FORWARD PULL FROM 6,065'TO 5,253' -SPOT WELL COMMANDER CIRC SUB AT 4,979'MD 04:30 - 05:30 1.00 DRILL N DPRB 6,065.00 INTI DROP WELL COMMANDER FUNCTIONING BALL AND PUMP DOWN -86 GPM,400 PSI -REACH 1,500 PSI AND HOLD FOR 1 MINUTE -INCREASE PRESSURE TO 2,000 PSI --WELL COMMANDER FUNCTIONED OPEN AT 2,000 PSI CONFIRM CIRC SUB OPEN -152 GPM,290 PSI DROP SHUT-OFF BALL AND WAIT 5 MINUTES PUMP 80 BBLS 80 PPB LCM PILL -220 GPM,450 PSI CHASE PILL OUT OF DRILLPIPE WITH 10.0 PPG MUD 05:30 - 07:30 2.00 DRILL N DPRB 6,065.00 INTI PULL DRILLSTRING TO 4,447'MD Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 16 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: , Active Datum:Z-65 actual©89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:30 - 10:30 3.00 DRILL N DPRB 6,065.00 INTI CLOSE ANNULAR PREVENTOR AND SQUEEZE AWAY LCM PILL -SQUEEZE AT 1 BPM -STOP AT 10 BBLS INJECTED WITH PRESSURE AT 70 PSI -HOLD PRESSURE FOR 1 MINUTE --PRESSURE BLED DOWN TO 30 PSI IN 1 MINUTE -CONTINUE SQUEEZING AT 1 BPM -STOP AT 50 BBLS SQUEEZED WITH PRESSURE AT 90 PSI --PRESSURE BLED TO 50 PSI IN 1 MINUTE --PRESSURE AT 45 PSI AFTER 3 MINUTES -CONTINUE SQUEEZING AT 1 BPM -STOP AT 80 BBLS SQUEEZED WITH PRESSURE AT 100 PSI PRESSURE BLED TO 70 PSI IN 1 MINUTE --PRESSURE AT 50 PSI AFTER 5 MINUTES -CONTINUE SQUEEZING AT 1 BPM -STOP AT 95 BBLS SQUEEZED WITH PRESSURE AT 110 PSI --PRESSURE BLED TO 70 PSI IN 1 MINUTE --PRESSURE AT 60 PSI AFTER 6 MINUTES --PRESSURE AT 60 PSI AFTER 10 MINUTES BLEED BACK PRESSURE THROUGH CHOKE MANIFOLD AND GAS BUSTER TO TRIP TANK -BLED BACK 24 BBLS OPEN UP ANNULAR PREVENTOR ¢/ 10:30 - 11:00 0.50 DRILL N DPRB 6,065.00 INTI CIRCULATE THROUGH BHA AND ESTABLISH LOSS RATE -500 GPM 2,480 PSI -DYNAMIC LOSSES AT 420 BBUHR INITIAL -STABILIZED AT 240 BBUHR -9.9 PPG MUD WT IN AND OUT 11:00 - 11:30 0.50 DRILL N DPRB 6,065.00 INTI RUN IN HOLE FROM 4,447'TO 4,900'MD 11:30 - 12:00 0.50 DRILL N DPRB 6,065.00 INTI BREAK CIRCULATION AT 4,900'AND ESTABLISH LOSS RATE -500 GPM,2,560 PSI -DYNAMIC LOSSES AT 520 BBLJHR -9.9 PPG MUD WT IN AND OUT 12:00 - 12:30 0.50 DRILL N DPRB 6,065.00 INTI RIH FROM 4,900'TO 5,972'MD SPR @ 12:20: DEPTH 5,980'MD,5,710'TVD, MW 9.9 PPG MP#2:20 SPM:480 PSI;30 SPM:620 PSI WASH DOWN FROM 5,972'TO 6,065'MD 12:30 - 17:00 4.50 DRILL P INTI DRILL DOWN ONE STAND FROM 6,065'TO 6,158'MD STAGE UP FLOW RATE --310 GPM,1,430 PSI --410 GPM,1,930 PSI --500 GPM,2,550 PSI Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 17 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 00:00 7.00 DRILL P INTI DRILL AHEAD FROM 6,158'TO 6,527'MD -PUW 165K,SOW 138K,ROT 150K -500 GPM,3,000 PSI ON,2,730 PSI OFF -60 RPM,TQ 5K ON,4K OFF -10-15K WOB -10.1 PPG MUD WT IN AND OUT -CALCULATED ECD: 10.80 PPG,ACTUAL ECD: 10.84 PPG -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION FINGERPRINT CONNECTIONS TO CONFIRM WELL STILL BREATHING SPR @ 23:30:DEPTH 6,525'MD,6,169'TVD, MW 10.1 PPG MP#1:20 SPM:280 PSI;30 SPM:370 PSI MP#2:20 SPM:270 PSI;30 SPM:370 PSI ART:8.50 AST:0.42 ADT:8.92 ADT FOR LAST 24 HRS: 10.97 LOSSES FOR LAST 24 HOURS:688 BBLS 9/27/2011 00:00 - 12:00 12.00 DRILL P INTI DRILL AHEAD FROM 6,527'TO 7,365'MD -PUW 175K,SOW 138K, ROT 162K -413 GPM,3,050 PSI ON,2,330 PSI OFF -80 RPM,TQ 7K ON,5K OFF -15K WOB -10.2 PPG MUD WT IN AND OUT -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION FINGERPRINT CONNECTIONS TO CONFIRM WELL STILL BREATHING SPR @ 06:40 DEPTH 6,992'MD,6,710'TVD, MW 10.2 PPG MP#1:20 SPM 240 PSI 30 SPM 340 PSI MP#2:20 SPM 240 PSI 30 SPM 340 PSI ART:7.72 AST: 1.52 ADT:9.24 12:00 - 23:30 11.50 DRILL P INTI DRILL AHEAD FROM 7,365'TO 7,926'MD -PUW 198K,SOW 147K, ROT 167K -425 GPM,2,860 PSI ON,2,630 PSI OFF -80 RPM,TQ 9K ON,8K OFF -10K WOB -10.2PPG MUD WTINAND OUT -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION FINGERPRINT CONNECTIONS TO CONFIRM WELL STILL BREATHING SPR @ 16:30 DEPTH 7,511'MD,7,006'TVD, MW 10.2 PPG MP#1:20 SPM 380 PSI 30 SPM 500 PSI MP#2:20 SPM 390 PSI 30 SPM 490 PSI ART:5.20 AST:3.95 ADT:9.15 ADT FOR LAST 24 HRS: 18.39 Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 18 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:30 - 00:00 0.50 DRILL P INTI SPR @ 23:30 DEPTH 7,926'MD,7,288'TVD, MW 10.2 PPG MP#1:20 SPM 380 PSI;30 SPM:500 PSI MP#2:20 SPM 390 PSI;30 SPM:490 PSI BACK REAM OUT OF HOLE FROM 7,926'TO 7,740' -80 RPM,9K TQ,425 GPM,2450 PSI 9/28/2011 00:00 - 01:30 1.50 DRILL P INTI CONTINUE BACK REAMING OUT OF HOLE FROM 7,740'TO 7,300' -410 GPM,2330 PSI,7K TQ,190K PUW,145 SOW,165 ROT,80 RPM -AT 7,600'STARTED TAKING 240 BPH DYNAMIC LOSSES,SLOWED PUMP RATE TO 3BPM AND CIRCULATED WHILE CONSULTING WITH TOWN,DECISION MADE TO PUMP OUT OF HOLE AT 3 BPM ONLY ROTATING WHERE NEEDED 01:30 - 09:00 7.50 DRILL P " INT1 PUMP OUT OF HOLE FROM 7300' TO 3200'2 BPM,670 PSI -FINGERPRINT CONNECTIONS TO CONFIRM WELL STILL BREATHING 09:00 - 13:00 4.00 .. DRILL P INTI FLOW CHECK WELL AT SHOE WELL LOSING 2 BPH,PULL OUT OF HOLE ON ELEVATORS FROM 3200'TO 938',MONITOR WELL LOSING 1 BPH,STAND BACK 4"HWDP TO 303' 13:00 - 14:30 1.50 DRILL P INTI PJSM WITH ALL HANDS AND MWD,RACK BACK COLLARS LAY DOWN SOURCE,MWD, DRAIN MOTOR AND CHANGE OUT BIT 14:30 - 15:00 0.50 DRILL P INTI CLEAR FLOOR OF BHA 15:00 - 17:00 2.00 DRILL P INTI MAKE UP BHA#4 AND RUN IN HOLE TO 938' SHALLOW HOLE TEST MWD,TEST WAS GOOD 17:00 - 19:00 2.00 DRILL P INTI BLOW DOWN TOP DRIVE,RUN IN HOLE FROM 938'TO 3200'FILLING PIPE EVERY 20 STANDS,HOLE TAKING PIPE DISPLACEMENT WHILE RUNNING IN HOLE 19:00 - 20:30 1.50 DRILL P INTI INSTALL FOSV HANG BLOCKS SERVICE TOP DRIVE AND DRAW WORKS,SIP AND CUT DRILLING LINE 20:30 - 00:00 3.50 DRILL P INTI CONTINUE TO RIH FROM 3200'TO 7828' 9/29/2011 00:00 - 04:00 4.00 DRILL P INTI RIH TO 7926'STAGE PUMPS TO 3 BPM LOSING 120-160 BPH -BACK PUMPS DOWN TO 2 BPM LOSING 100-110 BPH -ROTATE AND RECIPROCATE PIPE WHILE CIRCULATING STAGING PUMPS 10 SPM,30 RPM,UNTIL ACHIEVING 415 GPM,2370 PSI -Losp RATE SLOWED TO 20 BPH ONCE BOTTOMS UP WAS ACHIEVED -INITIAL ECD AT 300 GPM 10.76,ECD AT 415 GPM 10.85 -MODERATE CONCENTRATIONS OF LCM WITH 10.6 PPG MW AT BOTTOMS UP Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 19 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual©89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 12:00 8.00 DRILL P INTI DRILL AHEAD FROM 7,926'TO 8,478'MD -PUW 207K,SOW 150K, ROT 175K -425 GPM,2,910 PSI ON,2,590 PSI OFF -100 RPM,TO 10K ON,9K OFF 15K WOB -10.2 PPG MUD WT IN AND OUT -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION FINGERPRINT CONNECTIONS TO CONFIRM WELL STILL BREATHING SPR @ 03:30 DEPTH 7,920'MD,7,327'TVD, MW 10.2 PPG MP#1:20 SPM 380 PSI 30 SPM 510 PSI MP#2:20 SPM 390 PSI 30 SPM 530 PSI SPR @ 10:15 DEPTH 8,387'MD,7,854'TVD, MW 10.2 PPG MP#1:20 SPM 450 PSI 30 SPM 550 PSI MP#2:20 SPM 440 PSI 30 SPM 550 PSI ART:4.22 AST: .62 ADT:4.84 12:00 - 23:30 11.50 DRILL P INTI DRILL AHEAD FROM 8,478'TO 9,199'MD -PUW 230K,SOW 155K, ROT 182K -425 GPM,3,080 PSI ON,2,870 PSI OFF -100 RPM,TQ 11K ON,9K OFF -10K WOB -10.2 PPG MUD WT IN AND OUT -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION FINGERPRINT CONNECTIONS TO CONFIRM WELL STILL BREATHING SPR @ 19:30 DEPTH 8,945'MD,8,346'TVD, MW 10.2 PPG MP#1:20 SPM 410 PSI 30 SPM 540 PSI MP#2:20 SPM 420 PSI 30 SPM 540 PSI ART:6.16 AST:2.75 ADT:8.91 ADT FOR LAST 24 HRS: 13.75 23:30 - 00:00 0.50 DRILL P INTI CIRCULATE BOTTOMS UP FOR SAMPLES @ 9199' -GPM 434, PSI 2880, 100 RPM,TQ 11K 9/30/2011 00:00 - 00:30 0.50 DRILL P INTI CONTINUE TO CBU FOR SAMPLES --434 GPM,2790 PSI, RPM 100,TQ 10K PUW 230K,SOW 155K,ROT 182K 00:30 - 02:00 1.50 DRILL P INTI DRILL AHEAD FROM 9,199'TO 9,217'MD -PUW 230K,SOW 155K, ROT 182K -425 GPM,3,040 PSI ON,2,870 PSI OFF -100 RPM,TQ 11K ON,9K OFF -10K WOB -10.2 PPG MUD WT IN AND OUT -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION CBU FOR SAMPLES -434 GPM,2790 PSI, RPM 100,TQ 10K -PUW 230K,SOW 155K, ROT 182K Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 20 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 03:30 1.50 DRILL P INTI DRILL AHEAD FROM 9,217'TO 9,224'MD -PUW 230K,SOW 155K, ROT 182K -425 GPM,3,040 PSI ON,2,870 PSI OFF -100 RPM,TQ 11K ON,9K OFF -10K WOB -10.2 PPG MUD WT IN AND OUT -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION CBU FOR SAMPLES -434 GPM,2790 PSI, RPM 100,TQ 10K -PUW 230K,SOW 155K,ROT 182K 03:30 - 05:00 1.50 DRILL P INTI DRILL AHEAD FROM 9,224'TO 9,234'MD -PUW 230K,SOW 155K, ROT 182K -425 GPM,3,040 PSI ON,2,870 PSI OFF -100 RPM,TQ 11K ON,9K OFF -10K WOB -10.2 PPG MUD WT IN AND OUT -RUNNING CONSTANT LCM ADDITIONS AT 1.5 LB/BBL CONCENTRATION -SPR @ 05:00 DEPTH 9,234'MD,8,658'TVD, MW 10.2 PPG MP#1:20 SPM 410 PSI 30 SPM 520 PSI MP#2:20 SPM 420 PSI 30 SPM 520 PSI -ART: .43 AST:0 ADT: .43 -ADT FOR LAST 24 HRS: .43 CBU FOR SAMPLES -434 GPM,2790 PSI, RPM 60,TQ 10K -PUW 230K,SOW 155K, ROT 182K 05:00 - 09:30 4.50 DRILL P INTI FINGER PRINT WELL TO CONFIRM BREATHING -PUMP OUT OF HOLE FROM 9234'TO 7083'@ 2 BPM,590 PSI -PUW 230K,SOW 155K 09:30 - 11:00 1.50 DRILL P INTI RUN IN HOLE FROM 7083'TO 9234' 11:00 - 15:30 4.50 DRILL P INTI CBU 2X STAGING PUMPS TO 2 BPM,790 PSI -5 BPM,840 PSI -220 GPM,850 PSI -430 GPM,2890 PSI -RPM 100,TQ 10K,PUW 235K,SOW 155K, RTW 190K -PUMPED 2 HI VIS SWEEPS WITH LCM, MARGINAL INCREASE IN CUTTINGS 15:30 - 00:00 8.50 DRILL P INTI FINGER PRINT WELL TO CONFIRM BREATHING -PUMP OUT OF HOLE FROM 9234'TO 7083'@ 2 BPM,590 PSI -ATTEMPT TO PULL WITHOUT PUMPING WELL SWABBING -PUMP OUT OF HOLE FROM 7083'TO 3824'@ 2BPM,375 PSI -PUW 235K,SOW 155K 10/1/2011 00:00 - 01:00 1.00 DRILL P INTI -PUMP OUT OF HOLE FROM 3824'TO 3200'@ 2BPM,375 PSI -PUW 185K,SOW 135K Printed 11/14/2011 1:35:53PM North America -ALASKA-BP Page 21 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:00 - 04:00 3.00 DRILL P INTI MONITOR WELL AT SHOE,WELL STATIC -CONTINUE TO PULL OUT OF HOLE ON ELEVATORS FROM 3200'to 938' 04:00 - 07:00 3.00 DRILL P INTI MONITOR WELL AT LAST STAND OF DP, WELL STATIC -LAY DOWN 4"AND 5"HWDP,AND JARS 07:00 - 10:00 3.00 DRILL P INTI PJSM ON LAYING DOWN BHA AND NUKES -LAY DOWN COLLARS,REMOVE SOURCE -LAY DOWN REMAING BHA 10:00 - 11:30 1.50 DRILL P INTI CHANGE OUT UPPER PIPE RAMS TO 7" -PULL WEAR BUSHING 11:30 - 13:30 2.00 DRILL P INTI' RIG UP AND TEST ANNULAR,AND LOWER RAMS WITH 4"TEST JOINT -250 PSI LOW TEST FOR 5 MIN -3500 PSI HIGH TEST FOR 5 MIN TEST UPPER RAMS WITH 7"TEST JOIN -250 PSI LOW TEST FOR 5 MIN -3500 PSI HIGH TEST FOR 5 MIN 13:30 - 14:00 0.50 DRILL P INTI RIG DOWN TEST EQUIP AND PULL TEST PLUG 14:00 - 17:30 3.50 CASING P INTI - -MAKE UP FOSV TO SAFETY JOINT -MAKE DUMMY RUN WITH LANDING JOINT AND HANGER -RIG UP FLOOR TO RUN 7"CASING WITH TORQUE TURN EQUIPMENT 17:30 - 00:00 6.50 CASING P INTI PJSM WITH ALL HANDS -MAKE UP SHOE TRACK AND CHECK FLOATS -RIH WITH 7"26#L-80 TCII AND VAM TOP CASING TO 2057' 10/2/2011 00:00 - 02:00 2.00 CASING P INTI CONTINUE TO RUN 7"26#L-80 TCII AND VAM TOP WITH TORQUE TURN EQUIPMENT FOM 2057'TO 3215' 02:00 - 05:00 3.00 CASING P INTI CIRCULATE AT SHOE STAGING PUMPS TO 5 BPM -2 BPM 260 PSI, LOSS RATE 75 BPH 216 BBLS PUMPED -3.5 bPM 300 PSI,LOSS RATE 24 BPH 91 BBLS PUMPED -5 BPM,360 PSI,LOSS RATE 60 BPH,50 BBLS PUMPED -FINGER PRINT WELL TO INSURE BREATHING 05:00 - 12:30 7.50 CASING P INTI CONTINUE RUNNING 7"26#L-80 TCII AND VAM TOP WITH TORQUE TURN EQUIPMENT FOM 3215'TO 6558',FILLING EVERY JOINT BREAKING CIRCULATION EVERY 5 JOINTS 12:30 - 14:00 1.50 CASING P INTI CIRCULATE BOTTOMS UP WHILE RUNNING IN HOLE FROM 6558'TO 6683' -3.5PM,400 PSI -4.5 SIPM,460 PSI -5 BPM,510 PSI 14:00 - 21:00 7.00 CASING P INTI CONTINUE RUNNING 7"26#L-80 TCII AND VAM TOP WITH TORQUE TURN EQUIPMENT FOM 6683'TO 9195',FILLING EVERY JOINT BREAKING CIRCULATION EVERY 5 JOINTS 21:00 - 21:30 0.50 CASING P INTI MAKE UP LANDING JOINT AND HANGER AND LAND CASING AT 9229' -PUW 295K,SOW 185K 21:30 - 22:00 0.50 CASING P INTI RIG DOWN FRANKS TOOL AND RIG UP HALLIBURTON CEMENT HEAD Printed 11/14/2011 1.35.53PM North America -ALASKA- BP Page 22 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 00:00 2.00 CASING P INTI BREAK CIRCULATION STAGING PUMPS TO 5 BPM -1 BPM,463 PSI, LOSS RATE 38 BPH -1.5 BPM,472 PSI, LOSS RATE 60 BPH -2 BPM,495 PSI, LOSS RATE 69 BPH -2.5 BPM,481 PSI LOSS RATE 84 BPH -3 BPM,434 PSI LOSS RATE 160 BPH 10/3/2011 00:00 - 03:30 3.50 CASING P INTI CONTINUE TO CIRCULATE WITH MINIMAL RETURNS -3 BPM,434 PSI LOSS RATE 160 BPH -TRIED ADJUSTING RATE UP AND DOWN TRYING TO ESTABLISH CIRCULATION -AT 350 BBLS PUMPED AWAY ESTABLISHED RETURNS MW OUT WAS 10.6 PPG -3 BPM,339 PSI, LOSS RATE 36 BPH WAITED UNTIL CLEAN MUD WAS AROUND PRIOR TO ADJUSTING RATE -3.5 BPM,375 PSI, LOSS RATE 30 BPH -4 BPM,395 PSI, LOSS RATE 24 BPH -4.5 BPM,423 PSI, LOSS RATE 48 BPH -5 BPM,511 PSI, LOSS RATE 60 BPH, CIRCULATED ADDITIONAL BOTTOMS UP AT 5 BPM czN`� 03:30 - 07:00 3.50 CASING P INTI PJSM WITH ALL HANDS -03:40 PUMP 10 BBLS 10.5 PPG MUD PUSH b� TEST LINES TO 4000 PSI, PUMP REMAINING 10 BBLS OF MUD PUSH 20 BBLS TOTAL 4 BPM,273 PSI (/ -03:58 DROP BOTTOM PLUG FOLLOWED BY 141 BBLS OF 11.0 PPG OF LEAD CEMENT 419 SACKS,4 BPM,560 PSI -04:49 BATCH AND PUMP 15.8 PPG CLASS G TAIL CEMENT 21 BBLS TOTAL 213 SACKS 4 i �/ . BPM,318 PSI ` t,e7 -05:07 DROP TOP PLUG KICK OUT PLUG WITH 10 BBLS OF WATER,FOLLOWED BY 340 BBLS OF 10.2 PPG LSND MUD FINAL PRESSURE 1000 PSI,BUMP PLUG 500 PSI OVER TO 1500 PSI -CEMENT IN PLACE AT 06:28 -STAGE PUMPS UP TO 2500 PSI IN 100 PSI INCREMENTS (SG -BLEED OFF CHECK FLOATS, FLOATS HOLDING LD -PRESSURE UP TO 1600 PSI,STAGE PUMPS TO 2500 PSI,A 100 PSI DROP IN PRESSURE WAS SEEN(PACKER INFLATED)VOLUME TO SMALL TO TRACK -PRESSURE UP TO 3400 PSI TO SHEAR ES CEMENTER 07:00 - 09:00 2.00 CASING P INTI CIRCULATE 2 BOTTOMS UP -2 BPM,220 PSI,5 BPM,314 PSI -50 STROKES INTO BOTTOMS UP 10.9 PH AND MUD PUSH WAS SEEN Printed 11/14/2011 1:35:53PM North America -AP " '. ' ' Iqart10.22114:1' Page 23 of 32 Operation Summary Report Common Well Name:Z-65 I AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) . 09:00 - 10:30 1.50 CASING P INTI PJSM WITH ALL HANDS ON 2ND STAGE 01 CEMENT JOB C.-JAY -09:00 PUMP 20 BBLS OF MUD PUSH .. . PRESSURE TEST LINES TO 4000 PSI -09:14 BATCH LEAD -09:20 BEGIN PUMPING 11.0 PPG LEAD CEMENT 52 BBLS TOTAL 130 SACKS.4 BPM, 473 PSI,LOST RETURNS WHEN MUD PUSH EXITED CEMENTER -09:33 DROP CLOSING,PLUG KICK PLUG OUT WITH 10 BBLS OF WATER -09:40 SWAP OVER TO RIG PUMPING AT 5 BPM,200 PSI, BUMP CLOSING PLUG 178 BBLS PRESSURE UP TO 1500 PSI -CEMENT IN PLACE AT 10:20 -BLEED OFF CHECK FLOATS,FLOATS HOLDING 10:30 - 11:00 0.50 CASING P INTI RIG UP AND INJECT 5 BBLS OF MUD DOWN 7 X 9 5/8 ANNULAS. INJECTION BROKE OVER AT 220 PSI 11:00 - 12:00 1.00 CASING P INTI RIG DOWN CEMENT EQUIPMENT AND LANDING JOINT 12:00 - 14:30 2.50 CASING P INTI MAKE UP RUNNING TOOL AND INSTALL 7" PACK-OFF RUN IN LOCK DOWN SCREWS, TEST PACK-OFF 250 PSI LOW FOR 15 MIN, 5000 PSI HIGH FOR 30 MIN 14:30 - 15:30 1.00 CASING P INTI CLEAN AND CLEAR FLOOR OF CASING AND CEMENTING EQUIPMENT SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 240 PSI AT 1 BPM 15:30 - 17:00 1.50 CASING P INTI CHANGE OUT TOP RAMS TO 3.5"X 6" VARIABLE, RIG UP SHORT BALES AND ELEVATORS 17:00 - 18:00 1.00 CASING P INTI RIG UP TO TEST UPPER RAMS,TEST RAMS 250 PSI LOW FOR 5 MIN,3500 PSI HIGH FOR 5 MIN WITH 4"TEST JOINT SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 220 PSI AT 1 BPM 18:00 - 18:30 0.50 CASING P INTI PULL TEST PLUG AND RIG DOWN TEST EQUIPMENT 18:30 - 19:00 0.50 CASING P INTI INSTALL WEAR RING SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 210 PSI AT 1 BPM 19:00 - 20:00 1.00 CASING P INTI PJSM, PICKUP CLEANOUT BHA -BIT, NM STAB,3 NM DRILL COLLARS,XO, JARS,XO 20:00 - 00:00 4.00 CASING P INTI RIH PICKING UP DP FROM PIPE SHED TO 2056'FILLING EVERY 20 STANDS SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 180 PSI AT 1 BPM SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 150 PSI AT 1 BPM Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 24 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/4/2011 00:00 - 01:30 1.50 CEMT P INTI CONTINUE TO PICK UP DRILL PIPE FROM 2056'TO 3027' SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 190 PSI AT 1 BPM 01:30 - 03:00 1.50 CEMT P INTI PJSM,CUT AND SLIP DRILLING LINE, SERVICE DRAW WORKS AND TOP DRIVE 03:00 - 04:30 1.50 CEMT P INTI RIH FROM 3027'TO 4885' SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 170 PSI AT BPM 04:30 - 06:00 1.50 CEMT P INTI RIG UP AND TEST CASING ABOVE ES CEMENTER 250 PSI LOW AND 2000 PSI HIGH HOLD FOR 5 MIN EACH 06:00 - 06:30 0.50 CEMT P INTI QRILL OUT ES CEMENTER -GPM 250, PSI OFF 1000, PSI ON 1250, RPM 50,TQ OFF 2K,TQ ON 3K -PUW 125K,SOW 107K,RTW 115K,WOB 15K SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 140 PSI AT 1 BPM - 06:30 - 07:00 0.50 CEMT P INTI CIRCULATE BOTTOMS UP GPM 350, PSI 1640 07:00 - 10:00 3.00 CEMT P INTI CONTINUE TO RIH TO 9159'FILLING EVERY 20 STANDS SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 120 PSI AT 1 BPM 10:00 - 11:00 1.00 CEMT P INTI RIG UP AND TEST CASING 250 PSI LOW FOR 5 MIN,3500 PSI HIGH FOR 30 MIN SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 120 PSI AT 1 BPM 11:00 - 13:00 2.00 CEMT P INTI DRILL OUT BAFFLE COLLAR -GPM 250, PSI OFF 1520, PSI ON 1540, RPM 50,TQ OFF 7K,TQ ON 7K -PUW 205K,SOW 135K,RTW 165K,WOB 15K SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 140 PSI AT 1 BPM 13:00 - 14:00 1.00 CEMT P INTI DISPLACE WELL WITH 320 BBLS OF 10.2 PPG LSND MUD 320 GPM,1830 PSI 14:00 - 19:30 5.50 CEMT P INTI MONITOR WELL, PULL OUT OF HOLE FROM 9210'TO 131' SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 140 PSI AT 1 BPM SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 120 PSI AT 1 BPM o ( J 19:30 - 20:00 0.50 CEMT P INTI LAY DOWN CLEANOUT BHA V` 20:00 - 22:00 2.00 CEMT P INTI PJSM WITH E-LINE CREWS RIG UP TO RUN GAUGE RING JUNK BASKET AND USIT IBC LOGS SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 110 PSI AT 1 BPM 22:00 - 22:30 0.50 CEMT P INTI RUN IN HOLE WITH E-LINE WITH GAUGE 6.1 GUAGE RING AND JUNK BASKET, HANGING UP AT 114'PULL OUT OF HOLE CHANGE GUAGE RING TO 5.98 Printed 11/14/2011 1:35:53PM North America -ALASKA- BP l Page 25 of 32 101114[I€ � .. Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE (DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 CEMT P INTI RUN IN HOLE WITH 5.98 GUAGE RING AND JUNK BASKET ON E-LINE SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 110 PSI AT 1 BPM 10/5/2011 00:00 - 00:30 0.50 CEMT P INTI CONTINUE TO RIH WITH GUAGE RING AND JUNK BASKET ON E-LINE TO 9200' SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 100 PSI AT 1 BPM 00:30 - 01:30 1.00 CEMT P INTI PULLOUT OF HOLE WITH GUAGE RING AND JUNK BASKET,JUNK BASKET FULL, DECISION MADE TO RUN IN BACK IN HOLE WITH JUNK BASKET DUE TO LARGE PIECES OF CEMENT AND PLUG MATERIAL SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 110 PSI AT 1 BPM 01:30 - 04:30 3.00 CEMT P INTI RUN IN HOLE WITH GUAGE RING AND JUNK BASKET ON E-LINE SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 90 PSI AT 1 BPM 04:30 - 07:30 3.00 CEMT P INTI POOH WITH GUAGE RING AND JUNK BASKET ON E-LINE SIM-OPS-INJ :: • 10.2 PP • LS► • •' DOWN OA 100 PSI AT 1 BPM 6,lS 07:30 - 14:00 6.50 CEMT P INTI RUN IN HOLE WITH IBC USIT LOGGING TOOL. TO 9200', LOGGING ON WAY OUT WITH LINE 14:00 - 16:00 2.00 CEMT P INTI RI WN E-LINE EQUIPMEN — 16:00 - 17:00 1.00 CEMT P INTI RIG UP TO TEST BOPS WITH 41/2"AND 2 7/8" TEST JOINTS SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 100 PSI AT 1 BPM 17:00 - 23:00 6.00 CEMT P INTI TEST BOPS WITH 2 7/8"AND 4 112"TEST JOINTS -250 PSI LOW FOR 5 MIN -3500 PSI HIGH FOR 5 MIN TEST WITNESSED BY AOGCC REP JOHN CRISP,TOOLPUSHER MIKE SMITH,WSL PAUL HAYNES AND WILL TURNER SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 100 PSI AT 1 BPM 23:00 - 00:00 1.00 CEMT P INTI RIG DOWN TEST EQUIPMENT 10/6/2011 00:00 - 03:30 3.50 CEMT P INTI PICK UP 6 1/8 PRODUCTION BHA MAKE UP AND RUN IN HOLE TO 244' -BIT,MOTOR, LEAD COLLAR,STAB,MWD, ADN,3 DRILL COLLARS,JARS SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 100 PSI AT 1 BPM 03:30 - 10:00 6.50 CEMT P INTI RUN IN HOLE WITH 6 1/8 PRODUCTION ASSEMBLY FROM 244'TO 9210' SIM-OPS-INJECT 2 BBLS OF 10.2 PPG OF LSND MUD DOWN OA 100 PSI AT 1 BPM Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 26 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual©89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ (ft) _ 10:00 - 10:30 0.50 CEMT P INTI DRILL CEMENT AND FLOAT EQUIPMENT FROM 9210'TO 9220' -PUW 200K,SOW 145K,RTW 170K -GPM 220, PSI ON 1410,PSI OFF 1420 -RPM 40 TQ 5K,WOB 12K 10:30 - 12:00 1.50 CEMT P INTI DISPLACE WELL TO 9.1 PPG FLO PRO MUD -GPM 250, PSI 1560 12:00 - 14:00 2.00 CEMT P INTI " DRILL OUT CEMENT FLOAT SHOE, RAT HOLE AND 20'OF NEW HOLE FROM 9220'TO 9254' -GPM 245, PSI ON 1770,PSI OFF 1730 -PUW 182K,SOW 151K,RTW 170K -RPM 40 TQ OFF 5K,TQ ON 4K WOB 15K SIM-OPS FREEZE PROTECT 9 5/8"X 7" ANNULUS WITH 65 BBLS OF DEAD CRUDE 2BPM,490 PSI 14:00 - 15:00 1.00 CEMT P INTI CIRCULATE BOTTOMS UP PRIOR TO FIT TEST 245 GPM,1630 PSI 15:00 16:00 1.00 CEMT P INTI RIG UP FOR FIT TEST @ 9254'MD 8677'TVD -PERFORM TEST TO 855 PSI TO 11.0 PPG EMW -RIG DOWN TEST EQUIPMENT -FIT APPROVED BY TOWN ODE KRIS HONAS 16:00 - 00:00 8.00 DRILL P PROD1 DRILL AHEAD FROM 9254'TO 9377' PUW 185K,SOW 150K,RTW 172 -245 GPM,1870 PSI ON,1760 PSI OFF -40 RPM,TQ 6K ON,4K OFF,15K WOB -9.1 PPG MUD WT IN AND OUT -ART:1.23 AST:5.09 ADT:6.32 -TOTAL DRILLING FOR 24 HRS:6.32 SPR @ 12:30 DEPTH 9200'MD,8634'TVD,MW 9.1 PPG MP#1:20 SPM 650 PSI 30 SPM 800 PSI MP#2:20 SPM 625 PSI 30 SPM 800 PSI 10/7/2011 00:00 - 12:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 9377'TO 9650' -PUW 188K,SOW 150K,RTW 170 -245 GPM,1880 PSI ON,1750 PSI OFF -30 RPM,TQ 6K ON,4K OFF,20K WOB -9.1 PPG MUD WT IN AND OUT -ART:4.14 AST:4.16 ADT:8.30 12:00 - 00:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 9650'TO 10064' -PUW 190K,SOW 150K,RTW 170 -245 GPM,1880 PSI ON,1750 PSI OFF -30 RPM,TQ 6K ON,4K OFF,20K WOB -9.1 PPG MUD WT IN AND OUT -ART:5.02 AST:3.24 ADT:8.26 -ADT FOR LAST 24 HRS: 16.56 SPR @ 14:30 DEPTH 9744'MD,8963'TVD,MW 9.1 PPG MP#1:20 SPM 700 PSI 30 SPM 850 PSI MP#2:20 SPM 700 PSI 30 SPM 855 PSI Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 27 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/8/2011 00:00 - 01:00 1.00 DRILL P PROD1 DRILL AHEAD FROM 10064'TO 10,089' -PUW 190K,SOW 150K,RTW 170 -245 GPM,1880 PSI ON,1750 PSI OFF -30 RPM,TQ 6K ON,4K OFF,20K WOB -9.1 PPG MUD WT IN AND OUT SPR @ 01:00 DEPTH 10,089'MD,8955'TVD, MW 9.1 PPG MP#1:20 SPM 710 PSI 30 SPM 850 PSI MP#2:20 SPM 700 PSI 30 SPM 840 PSI 01:00 - 02:30 1.50 DRILL P PROD1 CIRCULATE BOTTOMS UP -GPM 245, PSI 1755 02:30 - 05:00 2.50 DRILL P PROD1 MADD PASS FROM 10089'TO 9937' -GPM 245, PSI 1755, RPM 40 -PUW 190K,SOW 150K,RTW 170 PUMP OUT FROM 9937'TO 9729' -GPM 245, PSI 1750 MADD PASS FORM 9729'TO 9438' -GPM 245, PSI 1755, RPM 40 -PUW 190K,SOW 150K,RTW 170 PUMP OUT FROM 9438'TO 9229' -GPM 245, PSI 1750 05:00 - 09:30 4.50 DRILL P PROD1 MONITOR WELL,PULL OUT OF HOLE FROM 9229'TO 245' 09:30 - 11:30 2.00 DRILL P PROD1 MONITOR WELL,PJSM ON HANDLING SOURCE AND LAYING DOWN BHA, LAY DOWN BHA#6 11:30 - 12:00 0.50 DRILL P PROD1 CLEAN AND CLEAR FLOOR PREPARE TO PICK UP BHA#7 ;l 12:00 - 13:00 1.00 DRILL P PROD1 SERVICE TOP DRIVE AND DRAW WORKS, MAKE UP SAFETY JOINT FOR BHA 13:00 - 15:30 2.50 DRILL P PROD1 PJSM WITH ALL HANDS ON HANDLING SOURCE AND PICKING UP BHA,PICK UP BHA #7 AND RUN IN HOLE TO 245' 15:30 - 21:00 5.50 DRILL P PROD1 RUN IN HOLE WITH DRILL PIPE FROM 245'TO 9185' 21:00 - 22:30 1.50 DRILL P PROD1 SLIP AND CUT DRILLING LINE,CALIBRATE DEPTH 22:30 - 00:00 1.50 DRILL P PROD1 RIH FROM 9185'TO 10,089'WASH LAST STAND TO BOTTOM -PUW 190K,SOW 145K,GPM 245, PSI 1920 SPR @ 23:30 DEPTH 10,089'MD,8955'TVD, MW 9.1 PPG MP#1:20 SPM 710 PSI 30 SPM 850 PSI MP#2:20 SPM 720 PSI 30 SPM 850 PSI 10/9/2011 00:00 - 12:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 10,089'TO 10,287 -PUW 193K,SOW 142K,RTW 170 -250 GPM,2200 PSI ON,1950 PSI OFF -30 RPM,TQ 8K ON,6K OFF,20K WOB -9.1 PPG MUD WT IN AND OUT -ART:2.66 AST:3.75 ADT:6.41 SPR @ 11:00 DEPTH 10,209'MD,8955'TVD, MW 9.1 PPG MP#1:20 SPM 700 PSI 30 SPM 900 PSI MP#2:20 SPM 675 PSI 30 SPM 860 PSI Printed 11/14/2011 1:35.53PM North America -ALASKA- BP Page 28 of 32 Operation Summary,Report Common Well Name.Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(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 PROD1 DRILL AHEAD FROM 10,287'TO 10,739 -PUW 195K,SOW 145K,RTW 170 -250 GPM,2230 PSI ON,1950 PSI OFF -40 RPM,TQ 8K ON,6K OFF,20K WOB -9.1 PPGMUDWTINANDOUT I-ART:2.53 AST:5.44 ADT:7.77 -ADT FOR LAST 24 HRS:14.18 SPR @ 22:15 DEPTH 10677'MD,9006'TVD, MW 9.1 PPG MP#1:20 SPM 600 PSI 30 SPM 850 PSI MP#2:20 SPM 625 PSI 30 SPM 825 PSI 10/10/2011 00:00 - 12:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 10,739 TO 10,830' -PUW 195K,SOW 145K,RTW 170 -250 GPM,2230 PSI ON,1850 PSI OFF -40 RPM,TQ 8K ON,6K OFF,20K WOB -9.1 PPG MUD WT IN AND OUT -ART:2.32 AST:2.25 ADT:4.57 SPR @ 11:30 DEPTH 10,830'MD,9033'TVD, MW 9.1 PPG MP#1:20 SPM 525 PSI 30 SPM 750 PSI MP#2:20 SPM 550 PSI 30 SPM 770 PSI 12:00 - 16:00 4.00 DRILL N DPRB 10,830.00 PROD1 MAD PASS FROM 10,830'TO 10,116' -245 GPM,40 RPM CONTINUE TO PULL OUT OF HOLE ON ELEVATORS FROM 10,116'TO 9838' 16:00 - 17:30 1.50 DRILL N DPRB 10,830.00 PROD1 BUILD TRENCH FOR SIDE TRACK FROM 9855* TO 9873'@ 150 RIGHT OF HIGHSIDE -250 GPM,1770 PSI 17:30 - 00:00 6.50 DRILL N DPRB 10,830.00 PROD1 TIME DRILL FROM 9870'TO 9878' -245 GPM 1770 PSI,STARTED @ 1 FT/HR INCREASING TO 3 FT/HR -AT 9878'STARTED TO GET WEIGHT TRANSFER AND DIFFERENTIAL PRESSURE, WOB 4K, DP 45 -ART:0 AST:5.15 ADT:5.15 -ADT FOR LAST 24 HRS:9.72 -10:00 WORK THROUGH SIDETRACK AREA TO CONFIRM LEDGE WITHOUT PUMPS TAGGED UP AT 9874' SPR @ 22:00 DEPTH 9870'MD,8995'TVD,MW 9.1 PPG MP#1:20 SPM 350 PSI 30 SPM 550 PSI MP#2:20 SPM 360 PSI 30 SPM 560 PSI 10/11/2011 00:00 - 02:30 2.50 DRILL N DPRB 10,830.00 PROD1 TIME DRILL FROM 9878'TO 9883' -245 GPM 1770 PSI, CONTINUE @ 3 FT/HR -ATTEMPT TO INCREASE WEIGHT AND ROP BUT UNSUCCESSFUL TRACKED DOWN OLD HOLE -SUSPECT BIT DAMAGE FROM ZONE 3, POH 02:30 - 07:30 5.00 DRILL N DPRB 10,830.00 PROD1 MONITOR WELL PULL OUT OF HOLE FROM 9883'TO 9169' -MONITOR WELL AT SHOE, PUMP DRY JOB, BLOW DOWN TOP DRIVE PULL OUT OF HOLE FROM 9169'AND MAKE UP SAFETY JOINT. Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 29 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:30 - 09:30 2.00 DRILL N DPRB 10,830.00 PROD1 PJSM TO LAY DOWN BHA#7, MOBILIZE NUKE BOX AND BIT TO THE RIG FLOOR. LAY DOWN -JARS -CROSS OVER -CIRCULATION SUB -RACK BACK 1 STAND OF DRILL COLLARS. REMOVE RA SORCE LAY DOWN LWD AND MWD. DRAIN THE MOTOR, BREAK OUT THE BIT, LAY DOWN PONY COLLARS, STABILIZERS AND MOTOR. BIT GRADED 7-8-RO-N-X-I-BT-BHA 09:30 - 10:00 0.50 DRILL N DPRB 10,830.00 PROD1 SERVICE AND INSPECT TOP DRIVE, BLOCKS, AND DRAW WORKS. 10:00 - 12:00 2.00 DRILL N DPRB 10,830.00 PROD1 PJSM TO PICK UP BHA#8. PICK UP -HYCALOG MSF513D -AIM 1.5 DEGREE MOTOR -NM STABILIZER -2 NM 4.75"FLEX PONY COLLARS -IMPLUSE MWD ADNVISION -1 STAND 4.69"NM FLEX COLLARS -WELL COMMANDER CIRC SUB -CROSS OVER -4.75"HYDRA-JARS 12:00 - 13:00 1.00 DRILL N DPRB 10,830.00 PROD1 LUBE RIG, RIG DOWN SAFTY JOINT,AND CLEAR FLOOR. 13:00 - 18:30 5.50 DRILL N DPRB 10,830.00 PROD1 RUN IN HOLE TO 1176'AND SHALLOW TEST ✓ MWD.CONTINUE TO RUN IN HOLE TO 9839' FILLING EVERY 20 STANDS.WASH LAST STAND AND CONDUCT A SPILL DRILL 2.15 MINS. SPR @ 1800 HRS 9230'MD 8655'TVD MW=9.1 PPG MP#1 20 SPM=450 PSI 30 SPM=625 PSI MP#2 20 SPM=450 PSI 30 SPM=650 PSI 18:30 - 22:30 4.00 N DPRB 9,870.00 PROD1 BEGIN OPEN HOLE SIDETRACK.TRENCH FROM 9835'TO 9870'AT 150 DEGREES RIGHT OF HIGH SIDE. PUW=190 SOW=150 245 GPM 1710 PSI AST=1.88 ART=0 ADT=1.88 JAR HRS=28.58 22:30 - 00:00 1.50 STKOH N DPRB 9,870.00 PROD1 BEGIN TIME DRILLING AT 2 FPH 9870'TO 9873'. 10/12/2011 00:00 - 04:00 4.00 STKOH N DPRB PROD1 CONTINUE TIME DRILLING AT150 R OF HIGH SIDE FROM 9873'TO 9884' 240 GPM 1710 PS1/1670 PSI ON/OFF BOTTOM 04:00 - 12:00 8.00 DRILL N DPRB PROD1 DRILL AHEAD FROM 9884'TO 10090' -PUW 188K,SOW 148K, ROT 165K -GPM=240 ON/OFF= 1910/1720 -RPM 30,TQ ON/OFF 6K/5K,WOB 10K -AST 7.62,ART 1.77,ADT 9.39,JAR HRS 36.1 SPR @ 9930'MD,8978'TVD,MW 9.1 PPG MP#1 20 SPM=525 PSI,30 SPM=700 PSI MP#2 20 SPM=525 PSI,30 SPM=750 PSI Printed 11/14/2011 1:35:53PM North America -ALASKA - BP Page 30 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(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 N DPRB PROD1 DRILL AHEAD FROM 10090'TO 10522'. SURVEY EVERY 30'. -PUW 192K,SOW 145K,ROT 170K -RPM 40,TQ ON/OFF 7K/5K,WOB 15-20K -AST 4.47,ART 2.68,ADT 7.15,JAR HRS 43.2 KICK WHILE DRILLING DRILL(D2)55 SEC RESPONSE TIME. DRAINED STACK,FUNCTION TEST LOWER RAMS, UPPPER RAMS,AND ANNULAR. SPR @ 1930 HRS 10395'MD,8966'TVD,MW 9.1 PPG MP#1 @ 20 SPM=450 PSI,30 SPM=625 PSI MP#2 @ 20 SPM=450 PSI,30 SPM=650 PSI 10/13/2011 00:00 - 12:00 12.00 DRILL N DPRB PROD1 DRILL AHEAD FROM 10522'TO 10895' -PUW 188K,SOW 150K, ROT 167 -RPM 40K TQ ON 8K OFF 7K, -240 GPM, 1880 PSI OFF 2120 PSI ON BOTTOM -AST 4.22,ART 2.52,ADT 6.74,JAR HRS 50 SPR @ 10862'MD,9002'TVD,9.1 MW MP#1 20 SPM=525 PSI,30 SPM=700 PSI MP#2 20 SPM=550 PSI,30 SPM=750 PSI 12:00 - 00:00 12.00 DRILL P PROD1 DRILL AHEAD FROM 10895'TO 11260' -PUW 193,SOW 143, ROT 169,WOB 20 -40 RPM,TQ 6K OFF 8K ON -245 GPM,1910 PSI OFF,2160 PSI ON BOTTOM -AST 5.63,ART 2.57,ADT 8.2,JAR HRS 58.2 SPILL DRILL CREW RESPONSE IN 1 MIN 51 SEC SPR @2200 11234'MD,8958'TVD,9.1 PPG MP#1 @ 20 SPM=550 PSI,30 SPM=750 PSI MP#2 @ 20SPM=550 PSI,30 SPM=800 PSI 10/14/2011 00:00 - 06:00 6.00 DRILL P PROD1 CONTINUE DRILILNG AHEAD FROM 11260'TO 11400' -PUW 193K,SOW 143K, ROT 163K -40 RPM,TQ ON 7.5K OFF 6K,WOB 15-20K -245 GPM,1910 PSI OFF 2030 PSI ON BOTTOM 06:00 - 12:00 6.00 DRILL P PROD1 CONTINUE DRILLING AHEAD F/11,400'- 11,579'. -PUW 192K,SOW 145K,ROT 168K. -40 RPM,TORQUE ON BTM,8K,OFF BTM 6K. -243 GPM,1950 PSI OFF BTM,2150 PSI ON BTM.WOB 15K. -AST 6.21,ART 1.78,ADT 7.99,JAR HRS 66.2 -KICK DRILL W/DRILLING,51 SEC RESPONSE TIME. SPR @ 11,516'MD,8926'TVD,9.2 PPG MUD WT. -#1 MP 20 SPM=550 PSI, 30 SPM=770 PSI. -#2 MP 20 SPM=550 PSI, 30 SPM=700 PSI. Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 31 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date:9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Levet) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P PROD1 CONTINUE DRILLING AHEAD F/11,579'TO 11915' -PUW 193K,SOW 142K,ROT 167K,WOB 12K -40 RPM,TOURQUE ON BTM 10K,OFF BTM 8K -245 GPM,2300 PSI ON BTM,2000 PSI OFF BTM -AST 6.52,ART 1.44,ADT 7.96,JAR HRS 74.1 -FIRE DRILL 1:35 RESPONSE TIME 10/15/2011 00:00 - 11:30 11.50 DRILL P PROD1 CONTINUE DRILLING AHEAD FROM 11915'TO •'r TD AT 12384' -PUW 210K,SOW 142K,ROT 168K,WOB 15K -80 RPM,TORQUE ON 10K OFF 8K BTM -240 GPM 2320 PSI ON,2100 PSI OFF BTM -AST 1.99,ART 4.79,6.78,JAR HRS 81 HELD KICK WHILE DRILLING DRILL CREW RESPONSE TIME 51 SEC 11:30 - 12:00 0.50 DRILL P PROD1 TAKE SPR,FINAL SURVEY AND MONITOR THE WELL 10 MIN AND CONFIRM NO FLOW. CICULATE ONE OPEN HOLE ANNULAR VOLUME SPR @ 12382'MD,8876'TVD,9.1 PPG MW MP#1 20 SPM=625 PSI,30 SPM=760 PSI MP#2 20 SPM=620 PSI,30 SPM=760 PSI 12:00 - 00:00 12.00 DRILL P PROD1 MAD PASS OUT OF HOLE AT 300 FPH FROM TD AT 12383'TO 10210' -PUW 190,SOW,145, ROT 163 -40 RPM,TOURQUE 5K v -240 GPM,1900 PSI SPILL DRILL IN CELLAR CREW RESPONDED IN 90 SEC SPR 10210'MD,8966'TVD,9.1 PPG MP#2 20 SPM=550 PSI,30 SPM=750 PSI 10/16/2011 00:00 - 01:30 1.50 DRILL P PROD1 CONTINUE TO MAD PASS FROM 12210'TO 9980'AT 300 FPH -40 RPM,TORQUE 5K -240 GPM,1750 PSI 01:30 - 03:30 2.00 DRILL P PROD1 PUMP OUT OF HOLE FROM 9980'TO ABOVE THE SIDETRACK POINT AT 9870'ORIENT TO 150R AND SLIDE THROGH OPEN HOLE SIDE TRACK. PULL BACK OUT AND ORIENT 30L RUN BACK THROUGH AND TAKE A SURVEY TO CONFIRM RE-ENTRY INTO OPEN HOLE SIDE TRACK.CONTINUE TO PUMP OUT OF HOLE INTO THE SHOE TO 9186' Printed 11/14/2011 1:35:53PM North America-ALASKA- BP Page 32 of 32 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: DRL-ONSHORE(DON) Start Date: 9/15/2011 End Date: 10/16/2011 X3-00Y52-C(5,106,544.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual©89.33ft(above Mean Sea Level) Date From-To I Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 05:00 1.50 DRILL P PROD1 PUMP DOWN A 1.76"BALL AT 82 GPM 530 PSI. BALL LATCHED AT 41 BBLS WELL COMMMANDER OPENED AT 1810PSI. CIRCULATE BOTTOMS UP AT 495 GPM UNTIL SHAKERS CLEANED UP.PUMP A 1.76" CLOSING BALL AT 2 BPM WELL COMMANDER CLOSED WITH 1720 PSI.PUMPED AT 82 GPM TO CONFIRM THE CIRC SUB WAS CLOSED. MONITOR THE WELL FOR 10MIN CONFIRM NO FLOW. PUMP A DRY JOB,BLOW DOWN TOP DRIVE. HELD FIRE DRILL CREW RESPONDED IN 1 MIN 17 SEC 05:00 - 10:00 5.00 DRILL P PROD1 PULL OUT OF HOLE ON ELEVATORS AND LAY DOWN 34 STDS OF 4"DP.CONTINUE TO PULL OUT OF HOLE TO 245'. HELD KICK WHILE TRIPPING DRILL CREW RESPONDED IN 47 SEC 10:00 - 10:30 0.50 BOPSUR P PROD1 DRAIN STACK, FUNCTION TEST BAG,3-1/2"X 6"VBR,2-7/8"X 5"VBR, HCR CHOKE,AND HCR KILL.BLOW DOWN HCRS TO CONFIRM CLEAR. 10:30 - 12:00 1.50 DRILL P PROD1 PJSM TO LAY DOWN BHA#8, MOBILIZE NUKE BOX TO THE RIG FLOOR.LAY DOWN -JARS -CROSS OVER -CIRCULATION SUB -NM DRILL COLLARS -REMOVE RA SORCE -ADNVISION 4.75"LWD -IMPULSE MWD FUNCTION TEST BLIND SHEARS RAMS. 12:00 - 12:30 0.50 DRILL P PROD1 DRAIN THE MOTOR, BREAK OUT THE BIT, LAY DOWN PONY COLLARS,STABILIZERS AND MOTOR. BIT GRADED 2-1-BT-N-X-I-NO-TD Printed 11/14/2011 1:35:53PM North America -ALASKA- BP Page 1 of 8 Operation Summary Report Common Well Name:Z-65 AFE No Event Type:COM-ONSHORE(CON) Start Date: 10/16/2011 End Date: X3-00Y52-C(2,278,035.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/16/2011 12:30 - 13:30 1.00 CASING P RUNPRD CLEAN AND CLEAR RIG FLOOR OF BHA AND CROSS OVERS IN PREPERATION TO RUN 4.5" PRODUCTION LINER. 13:30 - 16:00 2.50 CASING P RUNPRD RIG UP XO AND SAFETY VALVES AND STACK TONGS TO RUN 4.5"VAMTOP CASING. 16:00 - 21:00 5.00 CASING P RUNPRD WKF 11P THF 4.5"VAM TOP 12.6# UCTION LINER AS FOLLOWS: -4.5'� ES FLOAT SHOE • -4.5"9.2#1-80 TCII JOINT - "TCII X 4.5"IBT 12.6#L-80 CROSSOVER -4.5" 12.6#L-80 IBT PUP JOINT -4.5"HES FLOAT COLLAR -1 JT 4.5"12.6#13CR80 VAM TOP LINER -4.5"BAKER LANDING COLLAR -1 JT 4.5"12.6#13CR80 VAM TOP JOINT -77 JTS 4.5"12.6#13CR80 VAM TOP JOINT -1 EA.4.5"12.6#13CR80 VAM TOP PUP JOINT -XO-5"BTC BOX X 4.5"VAMTOP PIN -UTILIZING BAKER LOK ON CONNECTIONS BELOW THE LANDING COLLAR AND JET LUBE SEAL GUARD ON ALL CONNECTIONS. TORQUE ALL VAM TOP CONNECTIONS TO 4400 FT/LBS. -STRAIGHT BLADE CENTRALIZER LOCKED DOWN AGAINST UPPER COLLAR OF JT#1 -1 FREE FLOATING HYDROFORM CENTRALIZER ON JOINTS#2 AND#3 -TWO HYDROFORM CENTRALIZERS ON JTS. #4-#75,#78-#80 -143 HYDROFORM CENTRALIZERS AND 72 STOP RINGS FILLING ON THE FLY AND TOPPING OFF EVERY LINER EVERY 10 JOINTS. 21:00 - 21:30 0.50 CASING P RUNPRD MAKE UP BAKER 5"X 7"HMC HYD.LINER HANGER AND 5"X 7"ZXP PACKER. 21:30 - 22:00 0.50 CASING P RUNPRD MAKE UP XO AND 15'DP PUP JOINT. CIRCULATE THE LINER VOLUME -5 BPM,630 PSI -PUW 90K,SOW 85 22:00 - 00:00 2.00 CASING P RUNPRD CONTINUE TO RUN IN HOLE ON 4"DRILL PIPE FROM 3512'TO 5282'FILLING THE PIPE EVERY 1000'. 10/17/2011 00:00 - 03:00 3.00 CASING P RUNPRD CONTINUE TO RUN IN HOLE ON DRILL PIPE FROM 5282'TO 9190'FILLING THE PIPE EVERY 10 STANDS.60-90 SECONDS TO RUN DOWN EACH STAND. 03:00 - 04:00 1.00 CASING P RUNPRD CIRCULATE BOTTOMS UP AT 5 BPM 1010 PSI. -CIRC RATE @ 3 BPM/690 PSI. -NO FLUID LOST DURING CIRCULATION. 04:00 - 07:00 3.00 CASING P RUNPRD RUN INTO OPEN HOLE WITH LINER FROM 9190'TO 12350' -UP WT AVERAGING 180-195K,DOWN WT AVERAGING 145K. -@ 11,000',195K UP WT,145K DOWN. Printed 11/14/2011 1.36.12PM NorthAmerica -ALASKA- BP Page 2 of 8 Operation Summary Report Common Well Name.Z-65 AFE No Event Type: COM-ONSHORE(CON) Start Date: 10/16/2011 End Date: X3-00Y52-C(2,278,035.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 07:30 0.50 CEMT P RUNPRD RIG UP TOP DRIVE CEMENT HEAD 07:30 - 13:00 5.50 CEMT P RUNPRD CIRCULATE DOWN THE LAST STAND AND TAG AT 12384'. STAGE PUMPS UP TO 3 BPM,990 PSI. BEGIN RECIPROCATING 25'STROKES. -3 BPM,970 PSI,PUW 180K,SOW 130K -3.5 BPM,1020 PSI,PUW 195K,SOW 140K THE PUMP PRESSRUE WAS NOT DECREASING WITH RECIPROCATION.SET 2' OFF BOTTOM AND STAGE PUMPS UP TO 5 BPM,1480 PSI.PRESSURE NOT DECREASING REDUCE RATE TO 4.5 BPM,1410 PSI,PUW 190K SOW 130K, AND BEGIN RECIPROCATING 40'STROKES. WELL STARTING TO CLEAN UP STAGED PUMPS UP TO 5 BPM,AND 1350 PSI PUW 190K,SOW 135K. 13:00 - 13:30 0.50 CEMT P RUNPRD CONTINUE TO RICIPROCATE PIPE AND CONDITION MUD PRE JOB SAFETY MEETING WITH CEMENTERS,MUD ENGINEER,RIG CREW,AND TRUCK PUSHER. 13:30 - 15:00 1.50 CEMT P RUNPRD SWAP TO CEMENTERS PUMP 5 BBLS OF11.5 G� PPG MUD PUSH AND PRESSURE TEST LINES TO 4500 PSI.GOOD TEST. PUMP 25 MORE ?1°‘' BBLS OF MUD PUSH AT 4 BPM,AND 80 BBLS (292 SX)OF 15.8 G CEMENT WITH L��L GASBLOK(1.54 CU FT.YEILD).DROP DRILL N PIPE WIPER DART WITH INDICATION IT LEFT HEAD FOLLOW WITH 9.1 PPG PERF PILL AT 5 it BPM AS PER CEMCADE RECIPROCATING 30' STROKES.CAUGHT CEMENT AT 52.8 BBLS 820 PSI, LATCH LINER WIPER PULG 91.7 BBLS PRESSURED UP TO 2440 UNABLE TO CONTINUE RECIPROCATION.SLOW PUMPS TO 2 BPM AT 132 BBLS.BUMP PLUG AT 140 BBLS WITH 1580 PSI.CIP 14:53. PRESSURE UP TO 2000 PSI, BLEED OFF AND CHECK FLOATS.FLOATS HELD. 15:00 - 16:00 1.00 CEMT P RUNPRD PRESSRUE UP TO 2500 PSI SET LINER HAANGER.SLACK OFF 60K, LINER HANGER SET.PRESSURE UP TO 3500 PSI TO RELEASE HR RUNNING TOOL.NO RELEASE. PRESSURE UP TO 4000 PSI TO RELEASE RUNNING TOOL. NO RELEASE. PRESSURE UP TO 4200 PSI TO RELEASE RUNNING TOOL. TOOL RELEASED. PICK UP 5'EXPOSE DOGS, SLACK OFF AND SEE A BOBBLE AT 135K. PICK UP 5'ABOVE TO MAKE SURE DOGS ARE EXPOSED SLACK OFF TO 75K, RIG DOWN HOSE AND SLING. ROTATE 20 RPM AND SLACK 80K WITH ROTATION. 16:00 - 16:30 0.50 CEMT P RUNPRD PRESSURE UP TO 1000 PSI AND PICK UP OUT OF HANGER.ONCE PRESSRUE DROPPED DISPLACE OUT CEMENT AT 12 BPM @2050 PSI. 12 BBLS OF CEMENT BACK TO SURFACE 16:30 - 17:00 0.50 CEMT P RUNPRD AAR MEETING ON LESSONS LEARNED 17:00 - 17:30 0.50 CEMT P RUNPRD LAY DOWN CEMENT HEAD AND SERVICE BREAK Printed 11/14/2011 1:36:12PM North America -ALASKA- BP Page 3 of 8 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: COM-ONSHORE(CON) Start Date: 10/16/2011 End Date: X3-00Y52-C(2,278,035.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:30 - 18:00 0.50 CASING P RUNPRD TAKE ON 9.1 PPG BRINE, BUILD HIGH VIS SPACER IN PREPERATION FOR UPCOMING DISPLACEMENT. PICK UP A SINGLE FROM THE PIPE SHED 18:00 - 19:00 1.00 CASING P RUNPRD PUMP 30 BBL HIGH VIS SPACER AND DISPLACE WELL FROM 9.1 PPG FLOW PRO TO 9.1 PPG BRINE. 10 MIN FLOW CHECK AND CONFIRM NO FLOW. SPR @ 9037'MD,9.1 PPG MP#1 20 SPM=50 PSI,30 SPM=130 PSI MP#2 20SPM=90 PSI,30 SPM=190 PSI 19:00 - 19:30 0.50 CASING P RUNPRD PJSM CUTTING AND PULL DRILLING LINE AS WELL AS SIM OPPS WITH CLEANING SURFACE EQUIPMENT IN PITS 19:30 - 21:00 1.50 CASING P RUNPRD CUT 59.5'OF DRILING LINE.SERVICE TOP DRIVE, BLOCKS,ADJUST BREAKS,AND CLEAN PITS. 21:00 - 00:00 3.00 CASING P RUNPRD PULL OUT OF HOLE ON ELEVATORS FROM 9037 TO 2981'. 10/18/2011 00:00 - 01:30 1.50 CEMT P RUNPRD CONTINUE TO PULL OUT OF HOLE ON ELEVATORS FROM 2981 TO RUNNING TOOL 01:30 - 02:00 0.50 CEMT P RUNPRD -SERVISE BREAK AND LAY DOWN BAKER RUNNING TOOL 02:00 - 02:30 0.50 CEMT P RUNPRD CLEAN AND CLEAR RIG FLOOR.PICK UP STACK WASHER AND NEW TIW VALVE. 02:30 - 03:00 0.50 EVAL N HMAN RUNPRD PJSM WITH SLB WIRELINE AND RIG UP WIRELINE. HELD SPILL DRILL CREW RESPONDED IN 1 MIN 5 SEC 03:00 - 05:00 2.00 EVAL N HMAN RUNPRD RUN IN HOLE WITH 6.125"GAUGE RING JUNK BASKET AND TAG TOP OF LINER AT 9047'. PULL OUT OF HOLE. 05:00 - 05:30 0.50 EVAL N HMAN RUNPRD LAY DOWN GAUGE RING JUNK BASKET. NO DEBRIS IN JUNK BASKET. 05:30 - 16:30 11.00 EVAL N HMAN RUNPRD RIG UP AND RUN ISOLATION SCANNER AND LOG FROM 9000'TO SURFACE. 16:30 - 17:30 1.00 EVAL N HMAN RUNPRD RIG DOWN WIRELINE SHIVES AND TOOLS. 17:30 - 18:30 1.00 BOPSUR P RUNPRD PICK UP BOP STACK WASHER AND FLUSHED STACK.FUNCTIONED BOP RAMS. 1 / WELL CONTROL DRILL CREW RESPONDED IN 55 SEC. 18:30 - 00:00 5.50 BOPSUR P RUNPRD RIG UP AND TEST BOP STACK PER AOGCC AND BP REGULATIONS. TEST BOPS WITH 4"AND 4 V2"TEST JOINTS -250 PSI LOW FOR 5 MIN -3500 PSI HIGH FOR 5 MIN TEST WITNESSED TOOLPUSHER HARRY GOCHENAUER,WSL JACOB THOMPSON AND FRANK ROACH. 10/19/2011 00:00 - 03:30 3.50 BOPSUR P RUNPRD CONTINUE TESTING BOP STACK PER AOGCC AND BP REGULATIONS. TEST BOPS WITH 4"AND 4 1/2"TEST JOINTS -250 PSI LOW FOR 5 MIN -3,500 PSI HIGH FOR 5 MIN TEST WITNESSED TOOLPUSHER HARRY GOCHENAUER,WSL JACOB THOMPSON AND FRANK ROACH. Printed 11/14/2011 1:36:12PM North America -ALASKA- BP Page 4 of 8 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: COM-ONSHORE(CON) Start Date: 10/16/2011 End Date: X3-00Y52-C(2,278,035.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) _ 03:30 - 05:00 1.50 CASING P RUNPRD RIG UP AND TEST 4.5"PRODUCTION LINER -250 PSI LOW FOR 5 MINUTES -3,500 PSI FOR 30 MINUTES -4.6 BBLS TO REACH TEST PRESSURE OF 3,540 PSI -PRESSURE AT 15 MINUTES:3,500 -PRESSURE AT 30 MINUTES:3,490 PSI -4.2 BBLS BLED BACK POST-TEST PRESSURE TEST RESULTS SENT TO WTL MIKE SCHULTZ RIG DOWN TEST EQUIPMENT. 05:00 - 07:30 2.50 PERFOB P OTHCMP BLOW DOWN CHOKE AND KILL LINES MOBILIZE SCHLUMBERGER TCP EQUIPMENT TO RIG FLOOR MAKE UP SAFETY VALVES PJSM WITH SCHLUMBERGER PERFORATING PERSONEL AND RIG CREW.RIG UP TO RUN PERFORATION GUNS. 07:30 - 11:00 3.50 PERFOB P OTHCMP MAKE UP SCHLUMBERGER PERF GUN ASSEMBLY -64 SECTIONS MAKE UP FIRING HEAD AND HYDRAULIC DISCONNECT ASSEMBLIES -TOTAL GUN ASSEMBLY LENGTH:2023.23' HELD D1 KICK WHILE TRIPPING DRILL -HOLD AAR FOLLOWING DRILL 11:00 - 14:00 3.00 PERFOB P OTHCMP RIG UP DOYON CASING DOUBLE-STACK TONGS RUN 40 JOINTS 2-7/8"HT-PAC FROM 2,023'TO 3,292'MD 14:00 - 18:00 4.00 PERFOB P OTHCMP CONTINUE RUNNING IN HOLE FROM 3291'TO 12292'AND TAGGED FLOAT COLLAR. -PUW 190K,SOW 153K HELD KICK WHILE TRIPPING DRILL 90 SEC RESPONSE TIME. 18:00 - 19:00 1.00 PERFOB P OTHCMP STAND BACK FROM 12292'TO 12081'GUNS ON DEPTH. 19:00 - 19:30 0.50 PERFOB P OTHCMP PJSM WITH SLB PERFORATING ON FIRING SEQUENCE OF GUNS. 19:30 - 20:30 1.00 PERFOB P OTHCMP FIRE GUNS WITH A 15 BBL INITIAL LOSS. PULL OUT OF HOLE FROM 12081'TO 10120' SO TOP OF BULL NOSE ABOVE TOP PERFORATION. 20:30 - 21:30 1.00 PERFOB P OTHCMP CICULATE BOTTOM FROM 10120'AT 7 BPM AND 1830 PSI.NO DEBRIS SEEN AT BOTTOMS UP.CONDUCT A 10 MINIUTE FLOW CHECK AND CONFIRM NO FLOW. 21:30 - 00:00 2.50 PERFOB P OTHCMP CONTINUE TO PULL OUT OF HOLE FROM 10120'TO 7298'LAYING DOWN DRILL PIPE IN THE PIPE SHED. TOTAL LOSSES TO THE WELL 30 BBLS 10/20/2011 00:00 - 00:30 0.50 PERFOB OTHCMP SERVISE/INSPECT TOP DRIVE, BLOCKS AND DRAWORKS. 00:30 - 03:30 3.00 PERFOB OTHCMP CONTINUE TO PULL OUT OF HOLE LAYING DOWN DRILL PIPE FROM 7298'TO 3290'. Printed 11/14/2011 1:36:12PM North America -ALASKA- BP Page 5 of 8 � Operation Summary Report Common Well Name:Z-65 AFE No Event Type:COM-ONSHORE (CON) Start Date: 10/16/2011 End Date: 'X3-00Y52-C(2,278,035.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 04:30 1.00 PERFOB OTHCMP RUN IN HOLE WITH REMAINING STANDS OF 4"DRILL PIPE FROM 3290 TO 5527'. HELD KICK WHILE TRIPPING DRILL CREW RESPONDED IN 52 SEC.HOLD MR. 05:00 - 06:30 1.50 PERFOB OTHCMP PJSM,MOBILIZE THREAD PROTECTORS TO THE RIG FLOOR.PULL OUT OF HOLE LAYING DOWN 4"DRILL PIPE SINGLES FROM 5527'TO 3913'. 06:30 - 07:00 0.50 PERFOB OTHCMP CIRCULATE BOTTOMS UP AT 5 BPM 540 PSI. • 07:00 - 08:30 1.50 PERFOB OTHCMP CONTINUE PULLING OUT OF HOLE LAYING DOWN DRILL PIPE SINGLES FROM 3913'TO 3290'. 08:30 - 11:00 2.50 PERFOB OTHCMP PJSM. RIG UP TO LAY DOWN HT PAC FROM 3290'TO 2023'. 11:00 - 12:00 1.00 PERFOB OTHCMP PJSM AND LAY DOWN SCHULBERGER QUICK DISCONNECT, FIRING HEAD AND MAKE UP SAFETY JOINT. LOST 8 BBLS IN THE LAST 12 HRS 12:00 - 12:30 0.50 PERFOB OTHCMP PJSM WITH SCHULMBERGER ON LAYING DOWN GUNS. 12:30 - 15:30 3.00 PERFOB OTHCMP LAY°OWN GUNS 15:30 - 16:00 0.50 PERFOB OTHCMP LAY SCHLUMBERGER TOOLS DOWN THE BEAVER SLIDE,AND BREAK DOWN SAFETY JOINT. 16:00 - 17:00 1.00` PERFOB OTHCMP CLEAN AND CLEAR RIG FLOOR. 17:00 - 17:30 0.50 PERFOB OTHCMP SERVICE TOP DRIVE. 17:30 - 18:30 1.00 PERFOB N RREP OTHCMP HANG IRON ROUGHNECK SEND TO SHOP FOR REPAIRS. 18:30 - 21:00 2.50 RUNCOM RUNCMP RIG UP TO RUN 4.5"COMPLETION. LAY DOWN SHORT BAILS,PICK UP LONG BALES, MAKE UP COMPENSATOR TO TOP DRIVE, RIG UP SINGLE JOINT ELEVATORS,AND MAKE DUMMY RUN WITH THE TUBING HANGER. • 21:00 - 00:00 3.00 RUNCOM RUNCMP BEGIN RUNNING 4.5"VAM TOP COMPLETION AS FOLLOWS: -4.5"WLEG -4.5"XN NIPPLE -4.5"X NIPPLE -7"X 4.5"HES TNT PRODUCTION PACKER Printed 11/14/2011 1:36:12PM North America -ALASKA- BP Page 6 of 8 Operation Summary Report Common Well Name:Z-65 AFE No Event Type: COM-ONSHORE(CON) Start Date: 10/16/2011 End Date: X3-00Y52-C(2,278,035.00) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.:DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release. Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/21/2011 00:00 - 16:00 16.00 RUNCOM P RUNCMP CONTINUE RUNNING4.5"13CR VAM TOP COMPLETION AS FOLLOWS. -4.5"WLEG -4.5"XN NIPPLE -4.5"X NIPPLE -7"X 4.5"HES TNT PRODUCTION PACKER -4.5"SGM-NDPG-CA SINGLE DROP PLUG -4.5"X NIPPLE -GLM-1 4.5"x 1"KBG-4-5 W/1"DUMMY& BK-LATCH -GLM-2 4.5"x 1"KBG-4-5 W/1"DUMMY& BK-LATCH -GLM-3 4.5"x 1"KBG-4-5 W/1"DUMMY& BK-LATCH -GLM-4 4.5"x 1"KBG-4-5 W/DCK-2& BEK-LATCH -GLM-5 4.5"x 1"KBG-4-5 W/1"DUMMY& BK-LATCH -4.5"X NIPPLE SAFETY STAND DOWN. HELD KICK WHILE TRIPPING DRILL.CREW RESPONED IN 94 SEC. 16:00 - 18:00 2.00 RUNCOM P RUNCMP MAKE UP PUP JOINTS AND HANGER,TEST I-WIRE VOID TO 5000 PSI FOR 5 MIN.GOOD TEST. LAND HANGER AND RUN IN LOCK DOWN SCREWS.WLEG AT 9050.26'. SIMOPS EMPTY PITS AND LINE RIG PUMPS UP ON CLEAN 9.8 PPG 120 DEGREE BRINE. • 18:00 - 18:30 0.50 RUNCOM P RUNCMP RIG UP TO PUMP DOWN THE BACK SIDE TAKING RETURNS THROUGH THE TUBING VIA THE CHOKE MANIFOLD. 18:30 - 21:00 2.50 RUNCOM P RUNCMP CIRCULATE AT 3 BPM 90 PSI DOWN THE BACK SIDE 140 BBLS OF 9.8 PPG BRINE FOLLOWED BY 61 BBLS OF CORROSION INHIBITED 9.8 BRINE,FOLLOWED BY 105 BBLS OF 9.8 PPG BRINE.PUMP 2 BBLS DOWN THE TUBING TO FLUSH OFF THE BALL SEAT. 21:00 - 23:00 2.00 RUNCOM P RUNCMP DROP BALL AND ROD AND RIG UP AND PRESSURE TEST TUBING: -250 PSI FOR 5 MIN -3500 PSI FOR 30 MIN -2 BBLS REQUIRED TO REACH TEST PRESSURE -LOST 100 PSI ON FIRST 15 MIN -LOST 50 PSI ON THE SECOND 15 MIN BLEED PRESSURE DOWN TO 2000 PSI. PRESSURE TEST IA -250 PSI FOR 5 MIN -3500 PSI FOR 30 MINUTES -4 BBLS REQUIRED TO REACH TEST PRESSURE -LOST 80 PSI IN FIRST 15 MINUTES -LOST 50 PSI IN SECOND 15 MINUTES --FAILING TEST R Printed 11/14/2011 1:36.12PM North America -ALASKA- BP - Page 7 of 8 Operation Summary Report Common Well Name:Z-65 AFE No Event Type:COM-ONSHORE(CON) Start Date: 10/16/2011 End Date: X3-00Y52-C(2,278,035.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time:9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase escription of Oper ' s (hr) _ (ft) 23:00 - 00:00 1.00 RUNCOM P RUNC IG UP AND RE-PRESSURE TEST IA: -250 PSI FOR 5 MIN -3500 PSI FOR 30 MIN 2.5 BBLS REQUIRED TO REACH TEST PRESSURE -LOST 80 PSI ON THE FIRST 15 MIN -LOST 20 PSI ON THE SECOND 15 MIN PRESSURE TEST DATA SENT TO WTL FOR APPROVAL AND AUTHORIZATION TO PROCEED. 10/22/2011 00:00 - 01:00 1.00 RUNCOM P RUN P CLEAR I-WIRE EQUIPMENT FROM THE RIG FLOOR.WTL AUTHORIZATION TO PROCEE H OPERATIONS RECEIVED. 01:00 - 02:00 1.00 RUNCOM P RUNCMP PRES •_ UBIN 0 ;'i PSI AND HOLD. PRESSURE UP THE ANNULUS TO 3500 PSI. BLEED PRESSRUE OFF TUBING AND OBSERVER DCK VALVE SHEAR. PUMP THROUGH BOTH WAYS AND CONFIRM DCK VALVE SHEARED. 02:00 - 03:30 1.50 RUNCOM P RUNCMP DRY ROD IN TWC. PRESSURE TEST FROM ABOVE: -250 PSI 5 MIN -3500 PSI 5 MIN GOOD TEST. PRESSURE TEST FROM BELOW: -250 PSI5 MIN -2000 PSI 5 MIN GOOD TEST. 03:30 - 07:00 3.50 RUNCOM P RUNCMP FLUSH BOP STACK.FUNCTION RAMS AND FLUSH STACK AGAIN. CHANGE OUT SAVER SUB FROM XT-49 TO 4-1/2"IF 07:00 - 08:30 1.50 RUNCOM P RUNCMP SLIP AND CUT DRILLING LINE 08:30 - 13:00 4.50 WHSUR P RUNCMP N/D BOP STACK N/U TUBING HEAD ADAPTER FLANGE -TERMINATE I-WIRE THROUGH ADAPTER FLANGE FIRE DRILL CREW RESPONDED IN 2 MIN 10 SEC 13:00 - 13:30 0.50 WHSUR P RUNCMP RIG UP AND TEST ADAPTER FLANGE VOID PER FMC FIELD REP -250 PSI LOW FOR 5 MINUTES -5,000 PSI HIGH FOR 10 MINUTES 13:30 - 15:30 2.00 WHSUR P RUNCMP N/U TREE TO ADAPTER FLANGE RIG UP CIW DOUBLE-MASTER TREE AND TEST -TEST WITH DIESEL -250 PSI LOW FOR 5 MINUTES -5,000 PSI HIGH FOR 5 MINUTES 15:30 - 17:30 2.00 WHSUR P RUNCMP RIG DOWN TREE TEST EQUIPMENT RIG UP DSM LUBRICATOR TO DOUBLE MASTER PRESSURE TEST LUBRICATOR -250 PSI LOW FOR 5 MIN -3,500 PSI HIGH FOR 5 MIN 17:30 - 18:00 0.50 WHSUR P RUNCMP PULL TWC WITH LUBRICATOR Printed 11/14/2011 1:36:12PM North America -ALASKA- BP Page 8 of 8 Operation Summary Report Common Well Name:Z-65 AFE No Event Type:COM-ONSHORE(CON) Start Date: 10/16/2011 End Date: X3-00Y52-C(2,278,035.00) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: DOYON 14 Spud Date/Time: 9/17/2011 9:30:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Z-65 actual @89.33ft(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 WHSUR P RUNCMP RIG UP LITTLE RED HOT OIL TO IA LITTLE RED TO TEST LINES -250 PSI LOW -3,500 PSI HIGH 20:30 - 21:00 0.50 WHSUR P RUNCMP PUMP 69 BBLS OF 60 DEGREE DIESEL DOWN IA -3 BPM 900 PSI INITIAL CIRC PRESSURE -1,600 PSI FINAL CIRC PRESSURE 21:00 - 22:00 1.00 WHSUR P RUNCMP HOOK UP JUMPER FROM IA TO DOUBLE MASTER TREE ALLOW DIESEL TO U-TUBE BETWEEN IA AND TUBING 22:00 - 23:30 1.50 WHSUR P RUNCMP RIG UP AND TEST DSM LUBRICATOR. -250 PSI 5 MIN -3500 PSI5 MIN 23:30 - 00:00 0.50 WHSUR P RUNCMP INSTALL BPV AND BEGIN TESTING FROM BELOW TO: -250 PSI 5 MIN -2000 PSI FOR 5 MIN. 10/23/2011 00:00 - 06:00 6.00 WHSUR P RUNCMP FINISH TESTING FROM BELOW TO: -250 PSI 5 MIN -2000 PSI FOR 5 MIN. RIG UP AND PRESSURE TEST IA ANNULUS VALVE TO 500 PSI FOR 5 MIN.REMOVE IA ANNULUS VALVE, INSTALL COMPANION FLANGE AND NEEDLE VALVE.PRESSURE TEST IA ANNULS VALVE TO 2500 PSI FOR 5 MIN.SECURE WELL RELEASE RIG. RIG RELEASED 10/23/2011 AT 06:00 Printed 11/14/2011 1:36:12PM 2^a s a MW aaa! 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( Noo000.-.- O it nu 1' Fe 'il D mmm mmm mmm mmmmm o ONmNrNOd Y Y W 0)(N..- n010 .0 LS a uQE LLJco. 0 O N MLLt O UON am LL >E O n! $rnm mAM Rim 000000 ., 000$ b000o Sm 0 e, 0 i o 9 ! e a E 1 Eg a Ep 2 y" G mm Page 1 of 1 Regg, James B (DOA) From: Rall, John R [RaIIJR2@BP.com)_._________�______. -------- ��-�---� Prb Z11-Q ( Sent: Friday, November 04, 2011 5:52 PM To: Regg, James B (DOA) Subject: Re: Prudhoe Bay well Z-65 BOPE Usage The well was shut in using the Hydril as per procedure. From: Regg, James B (DOA) <jim.regg@alaska.gov> To: Rall, John R Sent: Fri Nov 04 15:28:29 2011 Subject: RE: Prudhoe Bay well Z-65 BOPE Usage Please respond. Jim Regg AOGCC 333 W.7th Avenue,Suite 100 Anchorage,AK 99501 907-793-1236 From: Regg, James B (DOA) Sent: Friday, October 07, 2011 11:31 AM To: 'Rall, John R' Subject: RE: Prudhoe Bay well Z-65 BOPE Usage Shut in well with ...? Jim Regg AOGCC 333 W.7th Avenue,Suite 100 Anchorage,AK 99501 907-793-1236 From: Rall, John R [mailto:RalIJR2@BP.com] Sent: Monday, September 26, 2011 9:12 AM To: DOA AOGCC Prudhoe Bay; AK, D&C Rig 14 Well Site Leader; Schultz, Mikel; Mountford, Carl F; Willingham, James M; Daniel, Ryan; Kilfoyle, Jeffery A; Rymut, Cody D Subject: Prudhoe Bay well Z-65 BOPE Usage 11/7/2011 Blow Out Preventer Equipment ( BOPE ) Usage Report to the AOGCC The purpose of this document is to ensure timely reporting to the AOGCC of any BOPE use to prevent the flow of fluids from a well. Field Superintendent Name: John Rall Welisite Leader Name: Joseph LeBlanc Contact Number: 907-659-4618 Contact Number: 907-980-2589 Traction Number: 2011-IR-3951611 Well Location/Name & Rig Name: Z-Pad, Well 65, Doyon 14 Permit To Drill (PTD) Number: 211-0910 Date and Time of Incident: 9-25-11 06:50 Original Scope of Work: Drilling intermediate hole Operational Description Leading up to Well Control Event: Well taking fluid, 290 BPH dynamic losses, static losses. Drill from 5,885 to 5,901', noticed a 3 bbl increase BOPE Used and Reason: performed flow check, well flowing, shut in well Is a BOPE Test Required after use ( Yes/ No): Yes If no, why? 24 hour notice required to NS AOGCC Inspectors prior to testing BOPE components. Plan Forward: Exhale test Additional Comments: Exhale test showed that the well was breathing due to the lost circulation event There was no overpressure to the well from formation fluids. Email to AOGCC North Slope Inspectors within 24 hours of the incident: doa.aogcc.prudhoe.bayalaska.gov Email CC List BP WSL Harry Engel Wells Team Leader Jeff Kilfoyle Engineering Team Leader Operations Drilling Engineer-Well File Wells Operations Manager Drilling & Completions Engineer Manager Wells Intervention Manager Well taking fluid, 290 BPH dynamic losses, no static losses. Drill from 5,885 to 5,901', noticed a 3 bbl increase, performed flow check, well flowing, shut in well. BOPE Usage Report for AOGCC Rev 1 September 1, 2010 N ,/ IL _( U (rOE I Eo o N y0M 0 2 - 8 ; O L N m o 006a, N •.1- co a) d > Y co cp ch Y w c Q O7. CD W _ L Q c 7 N a) °� 0n d _▪ fn co 7 -c=3 L (5 co d▪ O03 (-" 0 N v 7 L 0 O ,_ a, C O U CA fn Q Q M < O Q O o A O N 0 p 0 0. C ,_ - - Y V NU C99 N C 2 0 Q N < J m .4 4;: aao)4 aa« Cl. aaa 4, a a aa.4 V CO V a) d = V = a) V d V 0 aa) V tU a) V a) u d CC) O N N 0 0 N N N N 7 M P M U) M N A a F- I c0 o Q 'a z w (0 0 0 0 0 m <O O O O 0 0 J J _J Z0 _ J 0 C) ~ Wa' Q' WF-WO , 0 LU � OZZ O< Z : O YO WZ 0 000 Z 00 o C9 U 0 iO zOO Z F-FF=-- F=- Q H HF- 0 0 NDI- < r re LLaa 0 a au- F- a1L 00. 00o Cl) 0 0 W wo z0 w J 1- rere °—° 2 C � LL w cn 0u. ixu.u. °-° cc re o aa02a2aaWEaaa ZaTo0aum .ial- mD E n w O Co C) CC N - CC 1-- C) C) N C) t0 0) M O CO U) Co O M 0 n N O T w O O O F` 1` M O O M N t0 1, m 0 0 0 N O 0 ,-. 00 ,- 0 r m 0, 0 . 999 . -7999 -r999 -r999 -r999 0 0 0 >- m m ' * 0 ~ -5ma3V y }V} a°0omce }VY a .- 2Na000com >}- a V a 0 C zn x > 3 › m > o0o > ComUreoom > (7 ? w m m m Q m Q Q m m m m m m m m m m m m m m m m m 0 N o N o -J 120.7 W ti c v coi 0 c `m - C) a c 7 N O W 0 0 G. 0 y M - J Y U C -0 V T N d Q m m a= 0• dg: d NmN w M 0 Q m r w - - 0 tN0N ZO ao CNQA NMM N O N rO N Y n - L N ,- ,- tkNQan � oo2N / aa2 om o • UN A y J U m▪ 6 m C. a )0CZ QwW COI Q w O Q N Q a CO a Q) slfA , -5 ,... irtuslA 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 Ken Allen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 BayOil Pool,Prudhoe Bay Field, Prudhoe PBU Z-65 BP Exploration (Alaska), Inc. Permit No: 211-091 Surface Location: 4294' FSL, 2771' FEL, SEC. 19, T 11 N, R12E, UM Bottomhole Location: 164' FSL, 3560' FEL, SEC. 19, Ti1 N, R12E, UM Dear Mr. Allen: Enclosed is the approved application for permit to drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, Daniel T. Seamount, Jr. Chair DATED this 5 day of August, 2011. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA y--,� �a y ALA' OIL AND GAS CONSERVATION COMM- 'ON Ir" ,'�,..,., co PERMIT TO DRILL 0 ?Oil20 AAC 25.005 -44/.4°:".„„?...// ��� la.Type of work: 1 b.Proposed Well Class: ®Development Oil 0 Service-Winj 0 Single Zone 1 c., S f Nell i la r..o d 1SS9( ® Drill 0 Redrill 0 Stratira hic Test ❑Development Gas 0Service-Supply 0Multiple Zone A InitUaf iAa' i Hy 0 Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp .1.rjr da woe Gas 2. Operator Name: 5.Bond: IN Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska)Inc. Bond No. 6194193 _ PBU Z-65 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 12363' TVD 8870' Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: ADL 028262 4294'FSL,2771'FEL, SEC. 19,T11N, R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 2044'FSL,4850'FEL, SEC. 19,T11N, R12E, UM September 1,2011 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 164'FSL,3560'FEL, SEC. 19,T11N, R12E, UM 2560 5330' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 88.30 feet 15.Distance to Nearest Well Open Surface: x- 599906 y-5959100 Zone- ASP4 GL Elevation above MSL: 56.10 feet to Same Pool: 434' 16.Deviated Wells: Kickoff Depth: 650 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 99 degrees Downhole: 4054 Surface: 3188 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD ND MD ND (including stage data) 42" 20" 133 A-53 PE , 80' Surface Surface 80' 80' -260 sx of Arctic Set , 12-1/4" 9-5/8" 40 L-80 BTC 3226' _Surface,Surface 3226' 3050' 1207 sx DeeoCRETE:407 sx Class'G' . 8-3/4" 7" 26 L-80 TCII 9220' Surface Surface 9220' 8555' 473 sx LiteCRETE: 198 sx Class'G' • 6-1/8" 4-1/2" 12.6 13Cr-85 VamTop 3293' , 9070' 8425' 12363' 8870' 281 sx Latex Class'G' 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 ND(ft): Junk(measured): Casing Length Size Cement Volume MD TVD Conductor/Structural Surface _ Intermediate Production Liner Perforation Depth MD(ft): Perforation Depth ND(ft): 20.Attachments: 0 Property Plat ®BOP Sketch IN 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 Cody Rymut,564-5452 Printed Name Ken Allen Title Engineering Team Leader Prepared By Name/Number Signature /c__ )�_ Phone 564-4366 Date 23/j/ Elizabeth Barker,564-5674 Commission Use Only Permit To Drill API Number: Permito I a e: See cover letter for Number: oU/409/O 50-Oa?9e?,'Sds/OOOO i ( other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed eth ne,gas hydrates,or gas contained shales: 21 Other: '� 3 500 P S Sof'P le,' Samples Req'd: ❑xes 'No Mud Log Req'd: Dyes E/No '14" 2,500 d,$4i A h n r`- 1 Z s H2S Measures: g'Yes ❑No Directional Survey Req'd: E Yes 0 No _ is dIf- re n%o/uJ .ccc � � `� d 33(• ) � � /o00 �Gc..),itAc. Z.S. J / ,- 0/151/ 5 // APPROVED BY THE COMMISSION 6/ Date 4 r COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from •ate of approval 20 AAC 25.005(g)) Submit In Duplicate OR1G1NALLfI( , aegv,-4 TREE- WELLHEAD= FMC Z-65 1 NOTES: ACTUATOR= KB.ELEV=--- - BF.ELEV= Proposed KOP= Max Angle= Datum MD= 500' �9-5/8"TAM PORT COLLAR Datum TVD= 2200' —4-1/2"HES X NIP ID=3.813" 27,215.5#,A-53 INSULATED CONDUCTOR H 80' GAS LIFT MANDRELS 9-5/8"CSG,40#,L-80 BTC,ID=8.835" H 3226' ST MD TVD DEV TYPE VLV LATCH FORT DATE L 5 3303 4 5422 3 6732 2 7645 1 8324 3845' H Proposed TOC Minimum ID = 3.726" @ 4-1/2" HES XN NIPPLE XXXX' H4-1/2"HES X NIP, ID=3.813" xxxx' Single Gauge Mandrel w/NDPG-C Gauge 8976' —T X 4-1/7 HES TNT PKR, ID=3.856 8998' —4-1/2"HES X NIP, ID=3.813" 9060' H4-1/2'HES XN NIP,ID=3.725" 9071' —BKR HNG/LTP 4-117 TBG,12.6#, 13Cr9070' VamTop, .0152 bpf, ID 3.958"H 9072' —14-1/2'vuLEG,ID=3.958" 7"CSG,26#,L-80 VT HC,ID=6.276" H 9221' • — , PERFORATION SUMMARY REF LOG: _ ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE Perforation intervals to be determined with logs 4-1/2"LNR, 12.6#,13Cr,VamTop,ID= H 12363' — 3.958 rAvAvivAvav DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 07/25/11 CDR Proposed Completion WELL: Z-65 PERMIT No: API No: BP Exploration(Alaska) Well Name: Z-65 Drill and Complete Plan Summary Name Position Office Home Cell Cody Rymut Drilling Engineer 5452 230-3594 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): Producer Surface Northing Easting Offsets TRS Location 5,959,100 599,906 4295 FSL / 2,772 FEL 11N, 12E, 19 Northing Easting TVDss Offsets TRS 5,956,823 597,866 -8880 2044' FSL / 4850' FEL 11N, 12E, 19 5,956,445 597,820 -8870 1667' FSL / 4903' FEL 11N, 12E, 19 Loc rget 5,956,220 597,830 -8860 1442' FSL / 4897' FEL 11N, 12E, 19 on5,959,715 597,990 -8895 4934' FSL / 4677' FEL 11N, 12E, 19 5,955,260 598,305 -8830 476' FSL / 4438' FEL 11N, 12E, 19 5,954,980 599,090 -8785 185' FSL / 3658' FEL 11N, 12E, 19 Bottom Northing Easting TVDss Offsets TRS Location 5,954,960 599,188 -8781 163' FSL / 3561' FEL 11N, 12E, 19 API NUMBER: NA Rig: Doyon 14 Estimated Start Date: 09/1/11 Operating Days to complete: 29.2 MD: 12363' TVD: 8871' RT/GL: 32.2/56.1' RTE: 88.3 Well Design: Grassroots Ivishak Zone 4 Producer 4-1/2" tbg, 12.6# 13Cr-85, Vam Top, Cemented and perforated Objective: Z4 Producer Directional Plan: Version: SLB WP12 KOP: 650' MD, build 1.5/100 Maximum Hole Angle: 99° Close Approach Wells: All wells pass major risk criteria. Reference anti-collision report Z-65 Permit Application Page 1 Nearest well within Pool 434' from Z-02 Zone 4 to Z-65 high angle reservoir section Distance to Nearest Property 5330'West from Z-65wp12 reservoir section to PBU boundary, at closest Line: approach. 5650'from T.D. to PBU boundary (SW). Logging Program: Surface Interval Drilling, MWD: GR/Res Open Hole: None Cased Hole: None Intermediate Interval Drilling, MWD: Real time GR/RES/DEN/NEU Open Hole: N/A Cased Hole: USIT Production Interval Drilling, MWD: GR/RES/AziDEN/NEU Open Hole: None Cased Hole: None Mud Program: 12-1/4" Surface Hole: Fresh Water Drilplex Mud Density Funnel Viscosity LSYP Yield Point API FL �H seconds (2x3-6 rpm) (Ib/100ft`) (mls/30min) (seconds) p ) . ( ) Spud to Base 8.8—9.5 60-120 (for reference 30—50 40—80 Less than or 10.8 PF only. Fluid should be equal to 8 run off LSYP) Base PF to 9.0—9.5 60-120 (for reference 20—45 40—80 Less than or 10.8 TD only. Fluid should be equal to 6 run off LSYP) 8 3/4" Production Hole: LSND MW PV YP API FL Interval pH (ppg) (cp) (Ib/1000ft2) (m1/30min) Csg Shoe to TCM1 9.9 12 - 18 20—28 < 10 9 - 10 TCM1 to TD 10.2 15 -22 20 -28 4 -6 9 - 10 6-1/8" Production Hole: FLOPRO SF Reservoir Drill-in Fluid Depth Interval Density (ppg) PV YP LSVR API Fl pH Csg Shoe to TD - 93) 6 - 12 20 -28 > 20,000 6.0— 10 8.5 -9.5 Z-65 Permit Application Page 2 Casing/Tubing Program: Hole Size Csg/ Wt/Ft Grade Connection Length Top Btm Tbg O.D. MD/TVD MD/TVDss 42" 20" 133 A-53 PE 80' GL 80'/ 80' 12 1/4" 9 /8" 40 L-80 BTC 3226' GL 3226' / 3050' 8 3/4" 7" 26 L-80 TOM 9,220' GL 9,220' /8555' 6 1/8" 4 '/2" 12.6 13Cr-85 VAM TOP 3300' 9,070' /8,425' 12,363' /8781' Tubing 4 '/2" 12.6 13Cr-85 VAM TOP 9070' GL 9,070' /8389' 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 Cement Calculations: Surface Casing: 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 400bbl/2248 ft'/ 1209 sks of DeepCRETE at 10.7 ppg and 1.86 cf/sk Tail 84 bbl /473 ft'/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 Mc t(I 3 a• TO) ss 14306 '' (-4-)� ` 3�0� Tail: Open hole volume 30% excess + 80' shoe track. Tail TOC: 1000' MD above the casing shoe J ,/ Total Cement Volume: Lead 155 bbl/869 ft'/472sks of LiteCRETE at 11 ppg and 1.84 cf/sk Tail 41 bbl/228 fts/ 196sks of Class 'G' at 15.8 ppg and 1.16 cf/sk Production Liner: Casing Size 4 1/2" Basis: Lead: None Planned Lead TOC: NA Tail: Open hole volume with 30% excess + 80' shoe track volume Tail TOC: Top of Liner Total Cement Volume: Lead None Planned Tail 77 bbl/433 ft'/281 sks, Latex 'G' at 15.8 ppg and 1.54 cf/sk Z-65 Permit Application Page 3 Formation Markers: (8) Formation Top and Estimated Pore Pressure Predictions NOTE: All standard formation tops are required from GR tie-in point above proposed KOP to TD for sidetracks NOTE: All standard formation tops are required from surface to TD for all new wells NOTE: Formation tops and pressures are required for all fault blocks penetrated and along laterals for horizontal and high•angle wells Tops Based on Well Plan#: Z-65 Wp7c Estimated Depth Hydrocarbon Estimated Pore Pressure Formation Formation Top Uncertainty Bearing Pore Pressure Uncertainty (TVDss) (+-TVD ft) (Yes No) (EMW ppg min, (EMW+-ppg) ml,max) G1 -255 +7-40' No 8.35,8.4,8.45 +-0.2 SV6 -1025 +1-40' No 8.35,8.4,_8.45 +-0.2 EOCU -1595 +1-40' No 8.35,8.4.8.45 +-0.2 SV5 -1685 +7-40' No 8.35.8.4,8.45 +'-0.2 BPRF -1775 +1-40' No 8.35,8.4,8.45 +1-0.2 Hydrates below SV4 -1805 +/-40' BPRF 8.35.8.7,8.9 +7-0.2 SV3 -2280 +/-40' Hydrates 8.35.8.7,8.9 +/-0.2 SV2 -2470 +/-40' Hydrates 8.35.8.7.8.9 +/-0.2 SV1 -2780 +/-40' Hydrates 8.35.8.7.9.3 +1-0.2 9 5'8" Surface Casing -3050 UG4 -3085 +/-40' No 8.35.8.7,8.8 +/-0.2 UG4A -3140 +7-40' No 8.35.8.7,8.8 +1-0.2 _ UG3 -3415 +1-40' No 8.35.8.7,8.8 +/-0.2 UG1 -3915 +/-40' No 8.35.8.7,8.8 +/-0.2 Fault#1 (Highland State Fault) -4025 +/- 100'M.D. See Fault Section below tor details UG Ma (faulted out) faulted out UG Mb1 (faulted top) -4025 UG Mb2 -4085 +1-40' Heavy oil 8.35.8.7.8.8 +/-0.2 UG Mc C.2412D/ +/-40' Heavy oil 8.35.8.7,8.8 +1-0.2 SB_Na -4210 +7-25' Yes 8.4,8.7,8.7 +/-0.2 SB Nb -4235 +/-25' Yes 8.4,8.7,8.7 +/-0.2 SB_OA -4385 +1-25' Yes 8.4.8.7,8.7 +/-0.2 SB OBa -4450 +/-25' Yes 8.4,8.7.8.7 +1-0.2 SB OBb -4480 +/-25' Yes 8.4,8.7,8.7 +/-0.2 SB OBc -4520 +%-25' Yes 8.4,8.7.8.7 +/-0.2 t SB OBd -4585 +1-25' Yes 8.4,8.7.8.7 +/-0.2 SB_OBe -4645 +/-25' Yes 8.4,8.7.8.7 +/-0.2 SB_OBf -4685 +7-25' Yes 8.4,8.7,8.7 +1-0.2 SB_OBf_Base -4730 +/-25' No 8.4,8.7.8.7 +//-0.2 CM-2 -5355 +/-50' No 8.4.8.7.10.2 +/-0.2 Fault#2(6200 MD) -5815 +'-100' MD Top possible overpressure -5840 +/-50' No 8.4, 10, 10.2 +1-0.2 CM-1 -5845 +7-50' No 9.4, 10. 10.2 +1-0.2 TLBK -6060 +/-50' No 9.4 10,10.7 +/-0.2 THRZ -6225 +7-50' No 9.4. 10. 10.3 +/-0.2 TKLB -6445 +i-50' No 9.4, 10. 10.3 +/-0.2 TKC4 -6550 +/-50' Yes oil::gas 6.4.9.5.10.4 +/-0.2 TMLV -6585 +,-50' No 9.6. 10,10.3 +/-0.2 TKNG -7315 + -50' No 9.6, 10, 10.5 +/-0.2 Z-65 Permit Application Page 4 TJG -7345 +'-50' No 9.6, 10. 10.5 +-02 TJF -7610 +'-50' No 9.6, 10,10.5 +-0.2 Fault#3(8.355 MD) -7720 ++ 100' M.D. TJE -7835 - -40' No 9.6, 10.10.5 +.-0.2 TJD -8103 +1-40' No 9.6, 10,10.5 +1-0.2 TJC -8320 +/-40' No 9.6, 10. 10.5 +;-0.2 Fault#4(8,995 MD) -8340 +,- 100'M.D. TJB -8425 +/-50' No 9.6, 10. 10.5 +'-0.2 TJA -8455 +/-25' No 9.6,10,10.5 +/-0.2 TSGR -8535 +/-25' Yes gas 7.14.8.4,8.6 +'-0.2 TSHA -8563 +/-25' Yes gas 7.12.9,9.7 +'-0.2 TEIL -8664 +/-25' Yes gas 7.05.8.4.9.7 +-0.2 TSAD(46P) -8700 +'-25' Yes oiLgas 7.05 8.4 8.53 +i-0.2 45N -8722 +/-25' Yes oil gas 7.05.8.4,8.53 +-0.2 45P -8728 +r-25' Yes oiLgas 7.05,8.4,8.53 +'-0.2 44N -8755 +'-25' Yes oil/gas 7.05,8.4.8.53 +-0.2 44P -8757 + -25' Yes oiLgas 7.05.8.4.8.53 +/-0.2 43N -8772 + -25' Yes oiVgas 7.05,8.4,8.53 +/-0.2 43P -8778 +'-25' Yes oiVgas 7.05,8.4.8.53 +'-0.2 42N -8796 +'-25' Yes oiLgas 7.05,8.4.8.53 +'-0.2 42P -8802 +/-25' Yes oil 7.05,8.4.8.53 +/-0.2 PGOC -8770 +/-25' 7.05.8.4.8.53 41 N -8837 +/-25' Yes oiLgas 7.05,8.4.8.53 +i-0.2 41P -8855 +/-25' Yes oilrgas 7.05,8.4.8.53 +/-0.2 Fault#5(9,820 MD) -8890 +1- 100' M.D. 7.05,8.4.8.53 Invert 1 41N -8881 +/-25' Yes 7.05.8.4.8.53 +/-0.2 42P -8847 +I-25' Yes 7.05.8.4.8.53 +'-0.2 42N -8842 +/-25' Yes 7.05,8.4.8.53 +-0.2 43P -8823 +/-25' Yes 7.05,8.4.8.53 +1-0.2 Build 2 43P -8821 +/-25' Yes 7.05,8.4,8.53 +/-0.2 42N -8837 +/-25' Yes 7.05,8.4.8.53 +:`-0.2 42P -8841 +/-25' Yes 7.05,8.4,8.53 +..-0.2 41 N -8872 +7-25' Yes 7.05,8.4,8.53 +/-0.2 41P -8888 +/-25' Yes 7.05,8.4.8.53 +1-0.2 Invert 2 41 P -8891 +/-25' Yes 7.05,8.4.8.53 +/-0.2 41 N -8872 +/-25' Yes 7.05,8.4,8.53 +/-0.2 42P -8848 +/-25' Yes 7.05,8.4.8.53 +i-0.2 42N -8842 +1-25' Yes 7.05,8.4.8.53 +?-0.2 43P -8831 +/-25' Yes 7.05.8.4,8.53 43N -8826 +/-25' Yes 7.05,8.4.8.53 +:'-0.2 44P -8813 +/-25' Yes 7.05,8.4,8.53 +1-0.2 44N -8812 +/-25' Yes 7.05,8.4.8.53 +1-0.2 45P -8800 +/-25' YES 7.05.8.4.8.53 +'-0.2 45N -8792 +:'-25' Yes 7.05,8.4,8.53 +'-0.2 Z-65 Permit Application Page 5 Well Control: 12 %" 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), blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Annular preventer and the rams will be tested to 3500 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 14 are attached to this permit to drill. Production Interval- • Maximum anticipated BHP: 4054 psi @ 8663' TVDss, 9.0 ppg EMW • Maximum surface pressure: 3188 psi @ surface / (based on BHP and a full column of gas from TD @ 0.10 psi/ft) V • Planned BOP test pressure: • Annular Preventer 250 / 3500 psi • Rams 250 / 3500 psi • Planned completion fluid: 9.2 ppg brine from 12370'MD (TD) to 1900'MD / 6.8 ppg diesel from 1900'MD to surface (Freeze Protect) = 3964psi. The expected BHP seen through the perforations is 3836psi. 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 5OBBLS (assuming 9.9 9.0 LOT Casing 11.8 LOT) 7" Intermediate 3500 psi Infinite (assuming 9.2 8.4 FIT Liner 9.3 FIT) 61/8"" Production 3500 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 V/ surface hole, it is requested to drill without a flow paddle for the first portion of the surface hole. After drilling past the larger rocks and wood sections, the flow paddle will be put back in the flow line. •L--/OCID` Z-65 Permit Application Page 6 Z-65 - Drill and Complete Procedure Summary Pre-Rig 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. MIRU Doyon 14. NU diverter spool &riser and function test_Prep pits with mud and PU drill pipe • as required and stand back in derrick. 2. MU 12-1A" drilling assembly with MWD/GR/RES. Spud and directionally drill surface hole to TD. Gyro data will be required until clean surveys can be taken (-500'). If needed, perform wiper trip at the base of permafrost. CBU until hole is clean, then POOH racking back DP and lay down BHA. 3. R/U, Run and cement the 9-%", 40#, BTC, L-80 casing to surface, displacing cement with mud. (A TAM port collar may be run as a contingency if hole conditions indicate a need) 4. Pressure test the 9-%" casing to 3,500 psi for 5 minutes. PU drill pipe as needed. 5. ND diverter spool and NU and test casing/tubing head. NU BOPE and test rams @ 3,500 psi/250 psi, and annular to 3,500 psi/250psi. 6. MU 8-3A" drilling BHA with MWD/GR/RES/DEN/NEU/and RIH to float collar. Pressure test the 9-%" casing to 3,500 psi for 30 minutes. 7. Drill shoe track and displace well to LSND drilling fluid. Drill new formation to 20-50' below 9-%" shoe and perform LOT. 8. Drill ahead to +/-200' and above the HRZ, circulate the well clean, weight up mud to 10.2 ppg. 9. Ensure mud weight of 10.2 ppg prior to drilling ahead in the CM-1. Continue drilling to TD at the Top SAG. At TD, CBU, and condition hole as necessary to run 7" casing. 10. Pump out to top HRZ, return to bottom, CBU, TOH on elevators. 11. Change upper VBR casin• rams to 7"_casin• rams and test. 12. RU and run 7" 26# L-80 TCII casing to TD. Cement the 7" casing to 500' MD above the top of the Mc. 13. Pressure test the 7" casing to 3,500 psi for 30 minutes. 14. Confirm that the OA is open immediately and also 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. 15. Change upper 7" casing rams to VBR casing rams and test. 16. PU 6-'/8" 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. Z-65 Permit Application Page 7 17. Displace the well to 9.2 ppg Flo-Pro SF fluid. 18. 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. 19. Make up 6-W horizontal drilling assembly. RIH and Drill ahead per the directional plan to TD. 20. Circulate bottom up, watch for indications of poor hole cleaning in this J-hook well profile, short trip, circulate and condition the hole. 21. MU and run 4-Y2" 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 9.2ppg brine above the liner top. 23. A perf pill will be left in the 4-%" liner. 24. POOH, L/D the liner running tool. 25. Run a Cement Eval loq from 7" casing shoe to surface. 7C°49°' 26. Pressure test casing and liner to 3,500 psi for 30 minutes. 27. RU DPC perf guns. RIH and perforate. Perf intervals to be supplied by Asset. 28. R/U and run a 4-1/2", 12.6#, 13CR, VAMTOP tubing completion with GLMS. Space out and land the tubing with tubing tail inserted into the liner tieback sleeve. 29. Make up tubing hanger per FMC Rep. Land the tubing hanger, and run in lock down screws. 30. Reverse circulate filtered 9.2ppg brine and corrosion inhibitor into the tubing x casing annulus. • 31. Drop ball/rod and set packer and individually test the tubing and annulus to 3,500 psi for 30 minutes: Record each test. 32. Shear the DCR valve. 33. Install TWC and test. 34. Nipple down the BOPE. Nipple up the adaptor flange and tree and test to 5,000 psi with diesel. 35. RU DSM. Pull TWC. 36. RU circulating lines. Freeze protect the well to —1900' TVD and allow diesel to U-tube reaching equilibrium. 37. Install a BPV. 38. Secure the well. Rig down and Move Off. Post-Rig Work: 1. MIRU slickline. Pull the ball and rod / RHC plug. 2. Negative pressure test liner lap. Z-65 Permit Application Page 8 3. Install generic GLV design. 4. Install well-house and instrumentation and flowline. 5. Pump scale inhibition treatment. Z-65 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. Possible overpressure zones at the base of the CM-2, top of the CM-1 C. There is some possibility of encountering over pressure in the Shublik and in the Ivishak near Z- 33 injector. II. Hydrates and Shallow gas: A. 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 and Production section. Follow normal monitor and mitigation procedures for losses while drilling. (10) Fault Details Throw Formation Where Encounter Fault MD Intersect interDsect Est.Throw ss Direction Uncertainty Highland State Fault-Ugnu M Sands 4233 -4025 -300 to-350' Down to SW +/- 100'M.D. Fault#2 6200 -5815 -20'to-40' Down to NE +/-100'M.D. Fault#3(Kingak TJF) 8355 -7720 -20'to-40' Down to NE +1-100'M.D. Down to Fault#4(Kingak TJC) 8995 -8340 -10'to-30' North +/- 100'M.D. Fault#5 in Ivishak Zone 4 9820 -8890 +40 to+60' Down to SW +/- 100'M.D. V. Kick Tolerance I Integrity Testing: A. The 9 5/8" casing will be cemented to surface using a port collar at 500' if necessary. The 7" production casing will be cemented to 500' above the Mc but will keep sufficient standoff from below the 9 5/8" casing shoe. The 6-1/8" liner will be cemented to the top of the liner. I 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 5OBBLS (assuming 9.9 9.0 LOT Casing 11.8 LOT) 7" Intermediate 3500 psi Infinite (assuming 9.2 8.4 FIT Liner 9.3 FIT) 61/8"" Production 3500 psi NA NA NA NA Casing VI. Lost Circulation / Breathing: A. Lost circulation potential when crossing the Highland Fault. There are five fault crossings planned throughout the entire well. One fault is expected in the reservoir interval. Follow LCM decision tree; reduce mud weight slightly. B. Shublik losses and breathing are possible. Follow Shublik mitigation plan. Z-65 Permit Application Page 10 VII. Broaching A. Monitor adjacent wells for broaching while drilling surface hole. IX. Hydrogen Sulfide A. 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-20 30 7/2/2010 #2 Closest SHL Well H2S Level Z-17 20 4/28/2009 #1 Closest BHL Well H2S Level z-o1 24 8/9/2009 #2 Closest BHL Well H2S Level Z-11A 40 7/3/2010 Max. Recorded H2S on Pad/Facility Z-100 120 3/2/2010 Other Relevant H2S Data: H2S levels of 0-120ppm have been recorded at Z (H2S alarms from rigs, etc.) Pad CONSULT THE Z PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION Z-65 Permit Application Page 11 VI. Lost Circulation/ Breathing: A. Lost circulation potential when crossing the Highland Fault. There are five fault crossings planned throughout the entire well. One fault is 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. IX. Hydrogen Sulfide A. 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N 30 V Opm UM)(0 W( Na,0(ONNNNN n a N 000040 00000 00000 00000 0,000,0 M M(h M M M M M M M M M M M M M M M M M M M M M 0) M d 0 0, M (p7M(N40 ;e2222 R8RR6 MMMSM ,53,922t0 MMM 8) N0 r000)) N00 q80: 22282N m888N m$ o2 W — 0 0000(0 NNNNOO )0)0000 00000 mama0) 000 ma, 0000000 cddcsioSN 06,4“666 66,66” 22vq- o)a,a,a,a, 0a,a,a,0 (8)(8)amimq 0 00000 00000 m 0 00000 m m m m m 00000 00000 00000 03010010 00000 00000 00000 00000 m M M (1) 0 L 13 (0E8 p O O N m p .88.„ O V pp O r 000(00 O O r O((pp O{{pp p(p O O m m.- O O m U)M M m O m M X(00 0 0 0 0 2 (0_, S 000'O 0 U10 ON OOr 000NO 0000UI ONNO(U ONOO M 0070 ONOOa 10 N0r0 d cq v '.O00O (gm2I2N(N. NN00 OKONV NN NNNNNN mm000 00000 00000000 00000 000000000 0000000 0 0 m m m m m 0000 00000 m mmm m 00000 00000 00000 00000 00000 00000 0 O 00000 •0 N')0 O(NN O N N N,-000 OU?0) Co0(.0N 0,-N00 N (O(O U0010O(00. .-000.-rn () .-00000 107UO)N v') N N000U0) (00. (p� NNNN'- 0)p'000 00000 ui 0000 000 pO Om)00000000 00000000 N Nr--(000 0 00000 (000 V RO M E N 00000 00000 00000 00000 0000 C— O 08082UONGOC N3(0<03 NmmU2NOONO.-NN;; 28,::,z:2 2824 010)00), N(.- 2 vvve�v mOOR vvva )Nm0Oaama00300 0aa .mmmW- NNmmm 7V $ UmOOmarnw0Ornrn mm 2rm aamN,- oNmo� oy,.0)d pm,nom 04000 m80vw m0<r°0 00)000) 00000 N.-00; $ co .000 MT ONNOp rr V hU) NN 0Om1p� .-000 t0tp0O Np0pp0 V O Om)ONNO ONOOM V ONOO '. O0p 0 O0) mmmO0i 003)0)W O0) 00) 00!00)W 80)80)00)mm CCC))m0)0 0080)00 00000 00000 00000 OO NN M 0 O 0 CS, O N 0) 0 _ N O M O V O 0 0 O b E 0) �v¢iV2Cl) 'wa ) av (o9Za N N? a Lo 4 mcZ (0)q c2 R c 2 R c2 a O I- 1l-I0(- I-C- v v r o a � V V, v N LL W 0 N WO N W 0 N WO v p 0 �(pp p F 4)W 80. ;"<:,:28:-.. 88; 880 d7 N xq C m W on- g)Nrcon_m mora 0 W mm((O 0 Dmommmoo 0,00WW0080( ninU (000 N O 0 (00 O N O W-(0(00 O O 0') C^ N m O N O O p�(000 N� rBh m 88 O N t�(�y [O 2 10 00 000 0 in 00 0)000 00000 000 A 0 ^`(O0 ON(O to N- pp,-N NNNNN Nc7ff) 02 m(D(O 6 (O co 6(C co (C(0 m 0 00 E 0 yy J g 8 8 8 8 88888 800 (0 ro(0(0 (0(0(0(0 co o O O mco 666 .ocooc {pp O O W W m W W m .m o w Wwwmw (O N 0- 0,703- u(`in(Oo0(�, m W M p (NOW O r.Nm N nom Ln �(0 WO 044,00 N ,TO t0 "777 ( i N (O c y^ N W hOCD Nt0 000 01 2 C (gi n0 WOmoa '0 _OMM N 1�000 d 406 m ?O M_ SCJ N O (p 0000 (O N c m W C mpQn �O avccDcDm 0MCQ N N N N O r N m(O M ('O Q ci MMMM OWl 00')00)0`)(W') Com)MM Q. 6 0O^ O0)O W 0)N0M 00M 0)00)(0 (O,Nmc- mm, O)mO duimmui Neid 10 W 0 0000000(0 0300 00 800 000 0 00000000 03030003 00303 Q] 0 0 L p ('1 p 3 H C g(9O_OM ('10 W 800 800 Q. 0 (^.)(700 c-008N 00)000 F 000003 mmro m 0030m aO m0001 W N C 800),00 282,(Ti NN z WO N W ~ 0 M CON N.-000 000 0 m N E azo W__z J F H W LL J 0 0 W J N n W N 0 W Q 0 000 ( O U yy r O)W mm t)W m0N)W mmm JO In 0 LL co 0,10 "NOW W 00 Cc 88800 (dau ii= tO'O O0O pp 00 0(NO1 ' t�'m 'vv(n W W m W (N^ g3.1 'w O coop J co O N 0) U O 1C L W N 0 0 ? 'n 4 v 2(n .c ✓ s N v W v N O by 0 Schlumberger KELL Z-65 (P12) FIELD STRUCTURE Prudhoe Bay Unit-WOA Z-PAD Magnate Parameters Su...LOoOon 104D2]Alaska State Plane,Zone Oa,US Feel MYCNYrgoua Motlel: BGGM 3011 Op60.921' De. Sept.,.25.2010 Lal: N 701]51.625 Northrg: 5059100.%RUN Grill Com:0.7616951]' Slot: 2-SE WO Ref Rotary Table184.0R above MSL) Mag Deo. 21 Bar FS'. 5) 0.627 Lon:rlaW 1x911 274% Eaaery. 598906.%RUS Scale Fact 099991104 Res Z 65(P12)00 Sr y Date'.July%.2011 0 600 1200 1800 2400 '-65(P12)v6 0 amewan eeennweeemte ee4 8400 0 dank R O CI : -a, _ _ _�_ _ _ _ _ _ _ _ _M_ _ _ _ _ _ _ _ _i._ _ _ _ _ _ _ _ _i._ _ _ _ _ _ _ Cn 1Z. • ._.._.._ _.._.._.._.._.._.._.._.._ _.._.._.._.._.._.._.._._ _.._.._.._.._.._..-.._._ _.._.._.._.._.._.._... II _.._.._.._ _.._.._.._..=.._.._.._.._i._.._.._.._.._.._..�a$i'{. : _.._.._.._Fwd.Co:_.._i._.._.._.._.._.._.._... Bld21100 .:i.IHE_ _ _ _ _ _ '�� _ -::_ u•_ _CM_ _ _ _ _ _....:..-. -.._ _ _ _ _._.._.._ 76 HE _.._.._.._.._ _.._.� 9000 < ; i < 4'...—Y 9000 1200 I— Z4S Tgt 2 Frpyl 1/M • Cry 6Z1gtTgt 5 End Cry Cry 2/100 End Cry 0 600 1200 1800 2400 Vertical Section(ft)Azim=140°,Scale=1(in):600(ft) Origin=0 N/-S,0 E/-V Nis 3600 Y 3600 8- 0 N _.._.._.._.. .._.._.._.._.._. •1e1Y..._.._.._.._.._.._.._._.._.._.._.._ C _.._.._.._.._w_.._.._.._.. a _/._.._.._.._.._.._.._.._.._._.._.._.._.._ :::::::::::::•::::::!a10[>r:::::,,i; :::2::::::::::::::::: ::::::: ::::::: II s::anan.,,..n....,.a::s::s::-(::aim:a:a:::::::a::::::aai:s::a::a:a:a CD 0 to 4800 = - ' '=' - ' ' = = - _ :_._.._.._.._.._.._-_.._.._.._.._:: 4800 p 6000 -..-....._a..a............................... .,. 6000 Fault 2 =====================t=======. , =Cry SlA01r::= 7200 7200 End Cry _.._.._.._.._ _.._.._.._.._.._.._.._.._._.._.._.._.._.._.._.._.._. �F.._.._.._ 8400 c - 8400 :::s::s::s::ags::s::s:::::s::s:::::::::::::s::::::::::::::s:pywY=:: - ._::: ■naaaus:acaua:aaauauananaua auansnansnan:aa:u:i:s•• ' F l ■ �- P12)v8 0 1200 2400 Vertical Section(ft)Azim=230°,Scale=1(in):1200(ft) Origin=0 N/-S,0 El-V by 0 Schlumberger WELL FIELD STRUCTURE Z-65 (P12) Prudhoe Bay Unit-WOA Z-PAD Magnetic Parameters Surface Location NfD27 Massa State Plana.Zr.Oe.U5 Fool Miscellaneous Model BGGM 2011 Sc'. 80.921• Dab: September 25,2010 fat'. N 70 17 51 R5 Nortlirm 59•59100.006U5 GrN Cony 0.78115951r Slot. Z-SE TVD Ref Rotary Table(88.36 above MSL) Mag Dec'. 21.685• FS: 576507n Lan'. W1491127.406 East%) 590808006110 SON Fad:0.99911130 Plan'. Z-85(P12)v8 Sr,Data'.July052011 -2400 -1800 -1200 -600 0 600 RTE Bid 2/100 Cry 1.5/100 0 0 Cry 2/100 9-51$'Cs. nd Civ 4- 600 son rpt/Cry 3/100 -600 Cry 3/100 End Cry End Cry Fa001 Z-65 F112 5815 Fault 2 -1200 -1200 civ 5.5/100 A • A nd Cry Z N -1800 -1800 = Fault 3 O �4 p Geo Pi.// - .- Z-65 F0 3 7720ss Ae / Z-651gt 2 I.0. / `,••Fault 4 2-65 Ft 4 83406s II ,,7"Csg CU Fault r, CN 14.5/100 03 1 -2400 End Coil\ -2400 [n Cry 61100 V Z-65 Tgt 3 '_ V End Cry MS: Cry 61100 I. Z.66 Tgt 4 -3000 1111 -3000 End Cry 111, Z-65 F0 5 88, Cry 61100 `. Za5 Tgt 5 ii, -3600 End•cev...9• . \ -3600 Cry 61100 • Z-65 Tgt 6 411111111111111111%ft.----- k -4200 End-Ory �oj.,,,i -4200 ZBS Tgt 7 TD -65(P12)v6 -2400 -1800 -1200 -600 0 600 «< W Scale=1(in):600(ft) E >>> CO O • T N • N co o N W ( iOLC) >, co CO as , N m toNc(QN on' >Nxt o 2m NC ct C CC9 aaaaa (1)_ C a)'— a) 0. _o C. To —o 0 0 N_ O L —o - a) 0 a) O cn a) O —O O — N- O O O — 4) O —p O —O C (9 N a V O N —O C N 2 0 y O — 5 Q W I I 1 , I r i I I t 1 1 ' 1 i l : ' 1 III „ ti : : : tit 1 : p r 0 80 N0 (uyij ot.) uoileJedag ailuao of aJlua3 BP Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan Ivi Z-65(SE)v6 Project: Prudhoe Bay TVD Reference: Z-65 Plan @ 88.30ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-65 Plan @ 88.30ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Plan Iv'Z-65(SE)v6 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-65 Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#12 Z-65 Offset ND Reference: Offset Datum Reference Plan#12 Z-65 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer( Interpolation Method: MD Interval 5.00ft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,432.87ft Error Surface: Elliptical Conic Survey Tool Program Date 6/30/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 34.30 500.00 Plan#12 Z-65(Plan Z-65) GYD-GC-SS Gyrodata gyro single shots 500.00 2,000.00 Plan#12 Z-65(Plan Z-65) MWD MWD-Standard 500.00 3,226.06 Plan#12 Z-65(Plan Z-65) MWD+IFR+MS MWD+IFR+Multi Station 3,226.06 4,730.00 Plan#12 Z-65(Plan Z-65) MWD MWD-Standard 3,226.06 9,220.50 Plan#12 Z-65(Plan Z-65) MWD+IFR+MS MWD+IFR+ Multi Station 9,220.50 10,720.00 Plan#12 Z-65(Plan Z-65) MWD MWD-Standard 9,220.50 12,362.98 Plan#12 Z-65(Plan Z-65) MWD+IFR+MS MWD+IFR+Multi Station 7/6/2011 11:04:57AM Page 2 of 5 COMPASS 2003.16 Build 73 BP Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan lvi Z-65(SE)v6 Project: Prudhoe Bay TVD Reference: Z-65 Plan @ 88.30ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-65 Plan @ 88.30ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Plan lvi Z-65(SE)v6 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-65 Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#12 Z-65 Offset TVD 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 Ivi Z-34(SM)v6-Plan Z-34-Z-34 Plan#7 vi 1,528.77 1,535.00 200.82 27.22 173.64 Pass-Major Risk Plan lvi Z-40(SI)v6-Plan Z-40-Plan#11 Z-40 v 554.68 555.00 75.89 10.15 65.76 Pass-Major Risk Plan Ivi Z-50(SA)v6-Plan Z-50-Plan#7 Z-50 vE 864.67 865.00 75.62 13.96 61.66 Pass-Major Risk Plan Ivi Z-51 (NA)v6-Plan lvi Z-Z51 -Plan#2 Z E 505.68 500.00 158.82 8.38 150.45 Pass-Major Risk Plan lvi Z-55(SB)v6-Plan Z-55-Plan#4 Z-55 vE 789.48 790.00 60.32 12.98 47.36 Pass-Major Risk Plan lvi Z-57(ND)v6-Plan Z-57-Plan#4 Z-57 vl 560.80 555.00 142.20 10.21 131.99 Pass-Major Risk Plan lvi Z-61 (NF)v6-Plan Z-61 -Plan#4 Z-61 vE 560.80 555.00 142.20 10.21 131.99 Pass-Major Risk Plan lvi Z-62(NC)v6-Plan Z-62-Plan#2 Z-62 vl 785.52 785.00 118.22 11.28 107.10 Pass-Major Risk Plan lvi Z-66(SC)v6-Plan Z-66-Plan#12 Z-66 499.95 500.00 46.14 9.33 36.81 Pass-Major Risk Plan lvi Z-69(NJ)v6-Plan Z-69-Plan#3 Z-69 v6 645.80 640.00 170.82 11.29 159.53 Pass-Major Risk Plan lvi Z-70(SF)v6-Plan Z-70-Plan#6 Z-70 vE 479.91 480.00 15.81 8.96 6.85 Pass-Major Risk Plan Kup Z-105(SN)v6-Plan Z-105-Plan#4 Z-1 655.80 650.00 235.31 11.07 224.24 Pass-Major Risk Plan Kup Z-105(SN)v6-Plan Z-105PB1-Plan# 655.80 650.00 235.31 11.40 223.91 Pass-Major Risk Plan Kup Z-113(NH)v6-Plan Z-113-Plan#5 Z- 370.00 370.00 150.17 7.06 143.12 Pass-Major Risk Plan Kup Z-113(NH)v6-Plan Z-113PB1-Plan# 370.00 370.00 150.17 7.06 143.12 Pass-Major Risk Plan Kup Z-115(NG)v6-Plan Z-115-Plan#9 Z- 370.00 370.00 145.59 6.90 138.69 Pass-Major Risk Plan Kup Z-115(NG)v6-Plan Z-115PB1-Plan# 370.00 370.00 145.59 6.90 138.69 Pass-Major Risk Plan Sch Z-201 (NM)v6-Plan Z-201-Plan#6 Z-: 742.47 740.00 267.75 12.14 255.61 Pass-Major Risk Plan Sch Z-202(NB)v6-Plan Z-202-Plan#2 Z-2 280.80 275.00 150.25 5.27 144.98 Pass-Major Risk Plan Sch Z-211 (SJ)v6-Plan Z-211-Plan#5 Z-2 790.73 785.00 90.50 12.99 77.51 Pass-Major Risk Plan Sch Z-213(NL)v6-Plan Z-213-Plan#3 Z-2 375.80 370.00 190.01 7.00 183.01 Pass-Major Risk Plan Sch Z-214(SK)v6-Plan Z-214-Plan#2 Z-2 400.79 395.00 105.91 7.46 98.44 Pass-Major Risk Plan Sch Z-215(SH)v6-Plan Z-215-Plan#2 Z-2 405.79 400.00 45.84 7.55 38.29 Pass-Major Risk Plan Sch Z-216(NI)v6-Plan Z-216-Plan#2 Z-2 375.80 370.00 163.16 7.00 156.16 Pass-Major Risk Plan Sch Z-218(NE)v6-Plan Z-218-Plan#2 Z-2 475.80 470.00 140.82 8.72 132.10 Pass-Major Risk Z-01-Z-01-Z-01 4,492.40 4,515.00 152.28 77.10 78.77 Pass-Major Risk Z-01-Z-01A-Z-01A 4,492.40 4,515.00 152.28 77.10 78.77 Pass-Major Risk Z-01-Z-01 APB1-Z-01 APB1 4,492.40 4,515.00 152.28 77.10 78.77 Pass-Major Risk Z-01-Z-01APB2-Z-01APB2 4,492.40 4,515.00 152.28 77.10 78.77 Pass-Major Risk Z-01-Z-01 B-Z-01 B 4,492.40 4,515.00 152.28 77.10 78.77 Pass-Major Risk Z-02-Plan Z-02B-Plan#3 5,890.51 5,840.00 118.07 85.76 42.63 Pass-Major Risk Z-02-Z-02-Z-02 5,891.41 5,850.00 118.11 85.88 42.52 Pass-Major Risk Z-02-Z-02A-Z-02A 5,889.06 5,840.00 118.01 85.85 42.52 Pass-Major Risk Z-03-Z-03-Z-03 3,777.56 3,820.00 111.06 70.93 44.44 Pass-Major Risk Z-03-Z-03A-Z-03A 3,777.56 3,820.00 111.06 70.85 44.53 Pass-Major Risk Z-103-Z-103-Z-103 2,761.06 2,850.00 265.55 44.83 222.63 Pass-Major Risk Z-103-Z-103PB1 -Z-103PB1 2,761.06 2,850.00 265.55 44.83 222.63 Pass-Major Risk Z-103-Z-103PB2-Z-103PB2 2,761.06 2,850.00 265.55 44.83 222.63 Pass-Major Risk Z-11-Z-11 -Z-11 4,405.87 4,450.00 217.42 79.49 143.10 Pass-Major Risk Z-11-Z-11A-Z-11A 4,405.87 4,450.00 217.42 79.49 143.10 Pass-Major Risk Z-112-Z-112Z-112-Z-112-Z-112 5,939.06 6,300.00 533.86 72.88 462.25 Pass-Major Risk Z-112-Z-112PB1 -Z-112PB1 5,939.06 6,300.00 533.86 72.78 462.36 Pass-Major Risk Z-112-Z-112PB2-Z-112PB2 5,939.06 6,300.00 533.86 72.78 462.36 Pass-Major Risk Z-12-Z-12-Z-12 4,868.97 4,960.00 256.96 80.69 179.38 Pass-Major Risk Z-13-Z-13-Z-13 2,269.09 2,240.00 360.55 34.52 326.43 Pass-Major Risk Z-13-Z-13A-Z-13A 2,272.84 2,235.00 360.64 34.61 326.43 Pass-Major Risk Z-13-Z-13APB1-Z-13APB1 2,272.84 2,235.00 360.64 34.61 326.43 Pass-Major Risk Z-14-Z-14-Z-14 2,181.05 2,155.00 326.66 35.24 291.80 Pass-Major Risk Z-14-Z-14B-Z-14B 2,185.28 2,150.00 326.73 35.31 291.80 Pass-Major Risk Z-14A-Z-14A-Z-14A 2,181.05 2,155.00 326.66 35.24 291.80 Pass-Major Risk Z-15-Z-15-Z-15 1,681.32 1,695.00 297.75 31.04 267.50 Pass-Major Risk Z-16-Z-16Z-16-Z-16-Z-16 1,742.42 1,725.00 214.72 41.30 175.42 Pass-Major Risk Z-16-Z-16A-Z-16A 1,742.42 1,725.00 214.72 41.30 175.42 Pass-Major Risk 7/6/2011 11:04:57AM Page 3 of 5 COMPASS 2003.16 Build 73 BP Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Plan lvi Z-65(SE)v6 Project: Prudhoe Bay TVD Reference: Z-65 Plan @ 88.30ft(Doyon 14) Reference Site: PB Z Pad MD Reference: Z-65 Plan @ 88.30ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Plan Ivi Z-65(SE)v6 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Z-65 Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#12 Z-65 Offset TVD 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) PBZ Pad Z-17-Z-17-Z-17 2,396.12 2,425.00 142.14 46.72 97.67 Pass-Major Risk Z-18-Z-18Z-18-Z-18-Z-18 1,714.28 1,730.00 47.94 35.33 15.89 Pass-Major Risk Z-19-Z-19-Z-19 826.52 830.00 146.78 19.48 127.29 Pass-Major Risk Z-19-Z-19A-Z-19A 825.89 825.00 146.76 19.47 127.30 Pass-Major Risk Z-20-Plan Z-20A-Plan#7 969.64 965.00 119.89 15.77 104.11 Pass-Major Risk Z-20-Z-20-Z-20 965.90 970.00 119.83 15.56 104.27 Pass-Major Risk Z-33-Z-33-Z-33 9,190.73 9,405.00 467.23 174.51 292.68 Pass-Major Risk Z-33-Z-33A-Z-33A 8,941.61 9,165.00 219.92 143.32 76.66 Pass-Major Risk Z-39-Z-39-Z-39 2,832.77 2,850.00 188.61 48.48 141.32 Pass-Major Risk Z-39-Z-39A-Z-39A 2,832.77 2,850.00 188.61 48.51 141.29 Pass-Major Risk Z-46-Z-46-Z-46 607.12 605.00 164.06 10.21 153.88 Pass-Major Risk Z-46-Z-46A-Z-46A 607.12 605.00 164.06 10.21 153.88 Pass-Major Risk Z-67-Z-67-Plan#12 Z-67 v6 10,200.00 11,331.24 755.53 130.46 624.90 Pass-Major Risk 7/6/2011 11:04:57AM Page 4 of 5 COMPASS 2003.16 Build 73 Project: Prudhoe Bay Site: PB Z Pad Well: Plan lvi Z-65 (SE) v6 Wellbore: Plan Z-65 From Colour To MD Design: Plan #12 Z-65 34 500 500 1000 x•55''6 1000 1500 From Surface to 9-5/8" ��° 1500 2000 Scan interval 100 ft \a 2000 3000 Scale 1 : 50 146 c2,-\-°946 6 All wells pass major risk �a�ti5\��1`'�\ -1,- .0;1.,,D 6ti59- '6 c,1°6 1;'' 6,\46 3000 5000 ..409 Q\a--. \ac'‘1' �Q\��1� � 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'Agaimpa,,,,,IllkitkA) k V 4---t,-E74ialt AZArilid A Iliki4S frivar4r4ft_iS11*,41 Yk. -.41011Milt,kW AV "A"&iriatilli*Ma ild 270 uu lirf 14114744>ii, 44 \ A 111‘it.4.- N,916.4.\labikel4P"P. a -�, ��� � 131/1/—4 AIL%1 s��%�' 11 '11117444, Altitk 41211"1111.0"k`' ti .,i! 7_ r, N4' li'fr. 1A► SII C:tri ...- �.►,;. 74 Ilk �` �' 'bra ' 't i44111 t lel t� �� A $i1� �Ir� !���! l N.I. tom ' ��� Ito ;''' , ' d. `1,, .,-1 �.� ��'��� ,� � � 1�i/ 110 '''' R`'' io otic k.,4w•\ ,\ s , 240NIP ��i��� �-t i 120 s„.44,itti.. 4liewp---- ----- .... -i- ......._ ........„..,..v. 4N4aity 210 150 5033 AI ' 180 Travelling Cylinder Azimuth(TFO+AZI)[0]vs Centre to Centre Separation [100 ft/in] Project: Prudhoe Bay Site: PB Z Pad Well: Plan Ivi Z-65 (SE) v6 Wellbore: Plan Z-65 From Colour To MO r Design: Plan#12 Z-65 34 500 500 1000 1000 1500 From 7"to TD 1500 2000 Scan interval 100 ft Scale 1 : 150 2000 3000 All wells pass major risk 0 3000 5000 5000 10000 525 10000 - 15000 330 30 ` 450 37 \ 300 ,7p2 300 \ ��,�„r'� ... ,(0-13 60 ' 22 � ,91301 10 a.'0— 1 1 \ 7 , I 10 ,/ 270 r 90 10- iliiiiii. \\ 1 I .. 5 \\N'-'----- 150......----7/1 10018 2 1 , , 'IL—A 6 III I k \AIP'11 iiia, 99.6 240 .4111111L 120 \.�...- 30• ' --_ r144.1111411111 Ply .it., 1110 / .,.. ► II Sar.iaa— 4 1' 1141 4 212r '4 1 5 • 180 Travelling Cylinder Azimuth(TFO+AZI)[']vs Centre to Centre Separation [150 ftiin] • Isi j Iw� A mg Ug u ___111Millie __ .• IIMMMUnW !" zi D i i Ami p I I p A r n O m d chi �' _ a7 x 1 II — ——— II 0 11.11 c ——— I=II w Z " m �_ - J Z if 'r . -I r mk 41 11 .11111 m .m� - "I: s ti § g 12.0 4 - 3 31 $ iVP A .- W o a ;_ . ?...j iv. 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O&g m $. -.4 O, UP 41 NNm aDO as Z O-ct m O x F r V �dyj H g C 'D Eo O r N m 44imi m mAgoi X r 0AG] wig a 11 C n . .a . ,... 0 to r- m • 3 @ 0 F Alaska Department of Natural Resources Land Administration System Page 1 of 3 Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources find Alaska DNR Case Summary File Type: ADL File Number: 28262 Printable Case File Summary See Township,Range,Section and Acreage? o Yes No [ New Search LAS Menu i Case Abstract I Case Detail I Land Abstract File: ADL 28262 'P Search for Status Plat Updates As of 08/02/2011 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: 01 IN Range: 012E Section: 17 Section Acres:640 Search Plats Meridian: U Township: 01IN Range: 012E Section: 18 Section Acres:599 Meridian: U Township: 01 IN 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 TI IN,RI2E,UM 17, 18, 19,20 2,480.00 12-04-1969***ASSIGNMENT LEGAL DESCRIPTION*** SEGMENT 1 T 11N,R 12E,UM SECTION 17:640 ACRES SECTION 18:599 ACRES SECTION 19:601 ACRES CONTAINING 1840 ACRES,MORE OR LESS. SEGMENT 2-LANDS ASSIGNED TI1N,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.cf n?FileType=ADL&FileNumber=28262... 8/2/2011 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 .25.41 • .' 6S PTD# o?//Q9/ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: 7'4.46/.°E' POOL: */ Circle Appropriate Letter/Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS (OPTIONS) PTIONS) WHAT 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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