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212-105
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 Suspend 0 Perforate Q Other Stimulate Q ❑ Alter Casing 0 Change Approved Proga l❑ .-- Plug for Reddll 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work m Ud a G/ 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory ❑ 5. Permit to Drill Number 212-105 AK 99519-6612 Stratigraphic 0 Service 0 6. API Number: 50-029-22046-02-00 7. Property Designation(Lease Number): ADL 0028262 8. Well Name and Number: PBU Z-07B 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: �,,,o�r REZ Total Depth: measured 14811 feet Plugsj�I ������measured feet true vertical 9061 feet Junk SEP 2 7 2017 measured feet Effective Depth: measured 14770 feet Packer measured 12005.53 feet true vertical 9032 feet Packer true vertical 8485.33 feet AOGCC Casing: Length: Size: MD: TVD: Burst Collapse: Structural Conductor 80 20"91.5#H-40 40-120 40-120 1490 470 Surface 2701 13-3/8"68#L-80 35-2737 35-2642 5020 2260 Intermediate 10249 9-5/8"47#NT8OS 34-10283 34-7509 6870 4760 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: See Attachment feet True vertical depth: See Attachment feet sumsNov 4U V t Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 32-12065 32-8518 Packers and SSSV(type,measured and See Attachment See Attachment true vertical depth) See Attachment 12.Stimulation or cement squeeze summary: Intervals treated(measured): 12884'-14595' Treatment descriptions including volumes used and final pressure: 74 Bbls Diesel w/Lube 776,277 Bbls 3%NH4CL w/F103&SafeLube,274 Bbls 3%NH4CL w/F103,99 Bbls 12%HCL Acid,99 Bbls 9/1 Mud Acid,36 Bbls Diverter(Wax Beads),34 Bbls Slick 1%w/SafeLube,1780 psi. 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 0 121 4 1178 259 Subsequent to operation: 393 600 717 1507 385 14.Attachments:(required per 20 AAC 25.070.25.071,s 25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory ❑ Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR 0 WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Peru,Cale Contact Name Peru,Cale Authorized Title: Petroleum Enginee ^/ 1� Contact Email: Cale.Peru©bp.com Authorized Signature: Date: Cp/ /{.�// / Contact Phone: +1 9075644522 Form 10-404 Revised 04/2017 vT L I°16' I" 7 obras DMM3 LA, O C j - 3 2017 Submit Original Only 41,• Alaska Oil and Gas Conservation Commission EC I VE D 333 West Seventh Avenue Anchorage, AK 99501-3572 SEP 2 7 2017 AOGCC RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary September 26, 2017 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for Addition of Perforations and Acid Stimulation for Well Z-07B, PTD # 212-105. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. 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LL_ co ca a re • • Packers and SSV's Attachment PBU Z-07B SW Name Type MD TVD Depscription Z-07B PACKER 10137.46 7412.12 7" Liner Top Packer Z-07B TBG PACKER 12005.53 8485.33 4-1/2" Baker SABL-3 Packer • • m ao C) (n cao 3 0 o_ c D m F- o = )) >. as nc 0 a)0 = oo 3a a0) ccooU) a45 • = 0) a C M a) cn 3 _ O a .IA c O J C O O C 0 j C - L IZ L O a p c0 O U :_ J O Q 0 O c 0 M . C 0 N. 00 C N M U 0 orS LL cn U2 } a w 3 7N 0 EW U U d ti O o = L CO In 0 0. Q O a ` O I� 0 a) m � Q U C ,., N C E . . 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Tr 6. _c u) – " Z -0E6- 0 = a * £ J/ e .c R o. o o d - _ � . � . : � � \ -0ƒ E 0 2 m _5 m k % as § % c') co a) co cc -0 0 g o o 9 N 0 / U) . 5u -JOQ / -a E IP / R \ k \ ¥ E =R / f E Q a ¥ - 2 / = � � ¥ a (-7) Li = � ■ tN c £ & e . t = m � CL ® ® - Q 7g » . e m ( ■ .- a = % � ■ o - o_= 0- � ° 2 I- 0 pet 2 % ƒ // - � kk / = f LI To 9 E 5 $ k x ,- k / N ® - oE Em & ,_ 2 2 c o / 6 ° = a O* a) 03 Til d k a / Q R . 0/ / H = n .- o = - 0. fX < E o k <�_@ / 3 % a) re k § / k 0,5 CL § f / E k\ ° I a q , aQ = Etoi_ a) R / •& » : 2 6 / 2 / , 3 CU -0 4t I m c > t = o a R CI / k/ / k / A�/ \ � / � % 2 � co 7 Q \ -, o H = 2 k % � = O E $ k 7 ® LL _ _ - o_2 c - o a - = a c 2 \ \ 2 § - F •5 k 5 O/ § \ 0 0 U / < o cf $ �c/ •E (7)5cocc O ƒ k / -_-__-' 00 _1 < ......-' ',.• oa) / R k L_ k k / a:/ / .E t 2 $ k ƒ Z 2 > U a. @ 2 £ _ .- _ 2 .§ ; U 0. t ¢ 2 0 v a \ \ 2 k r- ¥ (N k us (NI / 0 co _ L() (N CV n CO CO TREE= , 41116"CNV • WELLHEAD= FM �JC Z-0 / B S NOTES: WELL ANGLE>70°@ 12787' "' ACTUATOR= BAKER C INITIAL&ST"A' NOT SHOWN BELOW MILLOUT INITIALKB ELE 91.81 1 WINDOW " S'""4-1/2"CHROME TBG&2-7/8"LNR" BF.ELEv= 57.56' /I KOP= 1600' ++ 2102' i--14-1/2"OTIS SSSV NPD=3.813 I Max Angie= 94"@ 13820' CasUU'CT .]-1.._._110' 11.1 Datum MD= 12764' GAS LFT MANDRELS Datum TVD= 8800'SS ST MD TVD DEV TYPE VLV LATCH FORT DATE Lii 13-3/8 CSG,68#,L-80,D=12.415" 1--L. 2740' Fu� 4 3418 3114 50 LA DOME RK 16 03/31/13 3 7198 5491 53 MERLA COME RK 16 03/31/13 2 9924 7271 49 MERLA DMY RK 0 09/19/93 Minimum ID =2.36" @ 12045' 1 10034 7344 49 MERLA SO FE 20 04/01/17 4-1/2" KB LTP 10133' _j9-5/8"BKR TACK SLV,13=7_50" j 10141' 9-5/8"X 7"BKR LTP w/HGR D=6-187 [9-5/8"CSG,47#.NT-80S BUTT,D=8.681" H --10286 j I 9-5/8'MLLOUT WNDOW(Z-07A) 10286'-10336' 11961' ]—I4-112"PKR SWS NP D=3.813 12009' ,—I.7"X 4-1/2"BKR S-3 PKR D=3.875" j 12039' —14-1/2'PKR SINS X NIP,D=3.813" 12046' }--I4-1/2"KB LTP,D=2.36"(01/01/13) D TOP OF LN12061' H3.70"DEPLOY SLV, =3.00'R(3-1/2"X 3-1/4"X 2-7/8") 12061' — — — ' N] 12056' —4-1/2"FKR SIMV XN NP, MLLED TO 3.80"(08/27/12) BEHIND 4-1/2"TBG,12.6#13 CR-NSCT, H 12067' J/ \—{ 12069' —I4-112'WLEG,D=3.958" CT LNR .0152 bpf,D=3.958" 12078' —I aMo LOGGED ON XXIXX/XX? , [3-1/2'LNR,9.2#,L-80 STL,-0087 bpf,D=2.992' I—I 12104' 12104' 3-1/2"X 3-3/16"XO,D=2.786" 14-1/2-X r BKR WHPSTOCK(08/27/12) 1—f 12703' 7"LNR,29#,L-80 NSCC,.0371 BPF,D_6_184' J-—12703 1264�-i7"MARKER JOINT] PERFORATION FORATION SUMMARY 7'MLLOUT WNDOW(Z-07B) 12709'-12717' REL LOG:SLB MEM CCL!GR/TNF/TNN ON 12/14/12 ANGLE AT TOP PERF'81°@ 12852' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sgz SHOT SOZ 2' 6 12852- 12884 0 02/27/17 2" 5 12950-12976 0 02/28/17 L 13208' —[3-3/16"X 2-7/8'XO,D=2.377"I 2" 6 12986-13018 0 03/02/17 2" 6 13018-13050 0 03/01/17 2" 5 13280-13410 0 12/15/12 2' 5 13440-13520 0 12/15/12 2" 6 13540- 13820 0 12/15/12 2" 6 13870-13990 0 12/15/12 2" 6 14060-14480 0 12/15/12 2" 6 14504-14536 0 08/28/17 2" 6 14563-14595 0 08/28/17 3-1/4'LNR,6.6#,L-80 TCI,.0079 bpf,D=2.85' 13208' I PBTD H 14770' [2:7/8-LNR 6.4#,13CR-80 STL,.0058 bpf,D=2.441 l— 14810' DATE REV BY CX?MoENTS DATE REV BY COMMIS S PF IDHOE BAY UNIT 06/13/90 AUDI INITIAL COMPLETION 01/23/13 DJ/JMD 7"M_LOUT DEPTH CORRECTION VVELL: Z-07B 09/20/93 D-14 SIDETRACK(Z-07A) 03/12/14 KAB/JMD CORRECTED MIND PERMIT No:'2121050 12/16/12 NORDIC 2 CTD SIDETRACK(Z-079) 03/06/17 JB/JMD ADFERFS(02/27-03/02/17) AR No: 50-029-22046-02 12/30/12 PJC DRLG DRFT CORRECTIONS 04/03/17 JMG/JMD GLV C/O(04/01/17) SEC 19,T11N,R12E,974'FNL&1287'FVVL 01/03/13 NW/PJC SET LIP&GLV(1/1-1/2/13) 08/30/17 ATO/JMD ADFERFS(08/28/17) 01/09/13 GRCJ PJC PST CORRECTONS BP Exploration(Alaska) STATE OF ALASKA . "'ALASKA OIL AND GAS CONSERVATION COMMI REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend ❑ Perforate Q Other Stimulate 0 Alter Casing 0 Change Approved Program 10PP 9 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: 212-105 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory 0 AK 99519-6612 Stratigraphic ❑ Service 0 6. API Number: 50-029-22046-02-00 7. Property Designation(Lease Number): ADL 0028262 8. Well Name and Number: PRUDHOE BAY UNIT Z-07B 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 14811 feet Plugs measured feet ;9'i L,Lo L Vi IL true vertical 9061 feet Junk measured feet MAR D Effective Depth: measured 14770 feet Packer measured 10137 feet MAR2017 ' true vertical 9032 feet Packer true vertical 7412.12 feet AOGCC Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"91.5#H-40 40-120 40-120 1490 470 Surface 2701 13-3/8"68#L-80 35-2737 35-2642 5020 2260 Intermediate 10249 9-5/8"47#NT8OS 34-10283 34-7509 6870 4760 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 12852-12884 feet 12950-12976 feet 12986-13018 feet 13018-13050 feet 13280-13410 feet 13440-13520 feet 13540-13820 feet 13870-13990 feet 14060-14480 feet True vertical depth: 8913-8917 feet feet 8918-8919 feet 8919-8918 feet 8918-8917 feet 8917-8919 feet 8918-8916 feet 8916-8918 feet 8915-8910 feet 8910-8910 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 32-12065 32-8518 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): SCANNED APR 18 2017, Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 239 240 172 1377 238 Subsequent to operation: 292 406 224 1434 288 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory 0 Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data ❑ 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 1:21l� �� Phone +1 907 564 4424 Date 3/23/17 r ^TL. 3/2-- ) 1 ?- REMNISMAR ) 4R17 Form 10-404 Revised 5/2015 I y ��/ _�„ Submit Original Only , 7/217 • e Q,0o0ooO8o CO CO CO N Ln N C O N I- O 00 Co V- tiN- U v) 00000000 i 6) N N- CO O N N M 3 O CO a- E) CO o V m = LO CO Co Co 00 (DN O) O C ) CO O M N V O CO M — CO CO LO CO LC) C3) O LC) N N- CO CO CO 6) CO l l l l l H N- O C7) CO Ln V" O CO = N 'Cr CO CO 'ct LC) Ln C) CO N- CO CO CO 4-1C W M d a0 O U) N O M C70 0 0 0 '- CO (` N 00 O NN O N N M N Q = O Co ,TM Ln O O N C3)›- V M M v- O CN NM O N N M . co• 44 Mw O OHO 000O a) = J H Cp J J J M *k Z N * Co CO CO In 8 •co n/ N ' o N O CO CO N a o ") CO CO Ln N NM V LO N v M O O N- M O O M C 00 N- N LC) Ln = CO o J N ' N W CC F- C O— W () W U O LtW CCc Z Z rxW W W W W m O D H Z Z Z_ Z_ D 0 0 Packers and SSV's Attachment PRUDHOE BAY UNIT Z-07B SW Name Type MD TVD Depscription Z-07B PACKER 10137.46 7412.12 7" Liner Top Packer Z-07B TBG PACKER 12005.53 8485.33 7 X 4.5 Baker SABL-3 Packer • 0 C -° J o o_ Z Z W °� ¢ 3 E c a 0 0 ° Q �° CO I- L - o it i O c O O M - 3 c - 3 c �o O O c rn rn O - N * m to m O d �' -a m N N O > p N 0 > Q 2 0 H "- — 0, N N O 2O Cl)> z c Q i_ ui o c cn Y O N o 0 O J O U to 0 O O U U a) < m L -0 N (O 0 0 U) N- ~ Q @.) l �°- E U a. ~ D i C W (Na.n CO C U) v (O O = a c N o U O Q 0) 0) CO 73 p) C C 0 a) O 6- 0 0 0 O 03 c *L U 0) 0) 0 d. 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DATE REV BY COMMENTS DATE REV BY CONVENTS PRl1DHOEBAY UNIT 06/13/90 AUDI 2 INITIAL COMPLETION 01/23/13 DJ/JM) 7"MLLOUT DEPTH CORRECTION WELL: Z-07B 09/20/93 D-14 SIDETRACK(Z-07A) 03/12/14 KAB/JMD CORRECTED MND PERMIT No: 2121050 12/16/12 NORDIC 2 CTT)SIDETRACK(Z-07B) 03/06/17 JB/JMD ADRERFS(02127-03/02/17) AR No: 50-029-22046-02 12/30/12 PJC DRLG DRFT CORRECTIONS SEC 19,T11 N,R12E,974'FNL&1287'FWL 01/03/13 NW/PJC SET LTP&GLV(1/1-1/2/13) 01/09/13 GRC/PJC REEF CORRECTONS I- BP Exploration(Alaska) Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable 4 b direct inspection of the file. _ la - LO.5 . Well History File Identifier Organizing (done) ❑ Two-sided ❑ Rescan Needed RES AN: OVERSIZED: NOTES: C r Items: ❑ Maps: Grayscale Items: ogs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: BY: Maria Date: I f a g i y- /s/ 0 Project Proofing BY: iinlb Date: ` l aOv. /s/ re Scanning Preparation x 30 = 60 + 1÷ =TOTAL PAGES � LF y (Count does not include cover sheet) BY: ACM Date: r /s/ Production Scanning Stage 1 Page Count from Scanned File: CO5 (Count does include cover et) Page Count Matches Number in Scanning Prep ration: YES Vi'iP NO BY: 4112. Date: li, lsl Stage 1 If NO in stage 1, page(s) discrepancies were oun_d]:: 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 r o N T O > yocoii 0 O co N 'aa o °m a o N o ° n° a a m m d = O U a a I a s °Z a 2 O1 + a) a) `o Q c I m ! E - c Z v w >. E o` o` m ^2 O O Oo.Iz o. CU a) 0 0 J J U ° Ic') c7 Z oE y >. n,- 0 O 0 o 05 cIr 'C 0 a co E a1°i 0 z - o m a a ZO CO 0 m c Q Q w a Em m o] 0 E-1 C7 m z z 1 to iii J N i I J 7 O W U O co >0 u) a (.) co IX Q c E 10 CO �J 2 2a' i---IX a) O ° _ 0 w /� Q j c ,0 I N N M M M M " a n d f0 a1 �y U Y > N N O c) o 0 o E (n E m 0 1 .O- •- V N N N N N CO 7 0 W m ai y N N � � 5-.•,. C.-.1 N Cl) Z CO- 0) Ce 0 it E a ! id W y X c c c c c c c v o vi y Lu J 2 z! a a a a a a a a) m 0) a V mp 0010 O O O O O O E co Z ° ,� III ajo 0 0 N. 0 0 0re o o H to II, O IaD m (O (O CO CO CO J Q y 7 lC fA'� r E J a m , II Z '� o O m 2 U U O. ° C �y c ZI 5 t!0 0 o 0 o 0 0 a) G r g r) r) r- N- n N- r-- v.)o m 'li v, ' OaI /Z jI Fe: E a N V U a) c O —.Jco cn _ .:3 } } } com a' Z co/ N-. c. Q c I r �' IIIa- N JZ v aO E° Z 11 M ; /2U p m! J 2! 0U 0 o U U N N c >- N � J 0h N 1 tr) d m O 1U O � H EW J M "fi ?: f) co 17 CO U a) c ! C 0 0 r J cn c g Q w ° a U a) N I!, c •c a Q a ZIce as O z o >. u - 0 m U o 0 ° co �j aTi m ? •? 6 2 D E J I > N N a) Z Z Z z , (0 (%) co •CO T (Q O m a) a EC C c c o o a7 E Q �o z '� o 0 o o E o z Sp) 2 LE CO } C O Z O .. 6 0 z a) V V 0 E 0 } / } c IIO m uyE v v 03 c0 c0 0 00 (0o c >uj / as/ CL - w E a O I re 1l 1 0 " O W 0 Z N N N N N N 1 w ,mooo ° N N O - o e «. a a) re oa c E I S LL € E E E Z a) 0 Y w o ao O O c rnv a a a w Z o c CO 1 z y /� c Z W O � U U 0 O U J U N E O u' 1 � a a,B 0.a a m rn rn — E o ° O a 0 I 3 JGH w Ow J J w 3 ? 0 a 0 l U / 1- r M_ O O O N N 9 CO • 0 N Z OD N I N U Q 5 A O 'O 1.e.) W; aI Z Iek Q 11 J MR zo ,- I V�► m co � � J u o LI a c N 0 p UII 1 a Ce ° a W X W J U m o Z 8 Q a Ja m '1 II i O M c I Ccn o G N a Oto E .12 N V Uy o m E E N Q o o o a Z M i N 1 44 M o I (i) o 0 0 ' `• CCac ai Q z° 1� E E Uwill m `� z N M_ N_ O O !I Cp N N O N- O I OCI 1 m ✓ -F- N 3 N 4' N > N d' C O C I LI a ! y C UI • Y • H E a VE EV m w ! E k E Q aoUo I. o o 2 ' o TD Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator [AKDCWeIIlntegrityCoordinator@bp.com] Sent: Thursday, March 06, 2014 6:39 PM To: AK, OPS GC2 OSM: AK, OPS GC2 Field O&M TL; AK. OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Burton, Kaity; Wallace, Chris D (DOA); AK, OPS Well Pad Z; Regg, James B (DOA) Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK. D&C Well Integrity Coordinator Subject: OPERABLE: Producer Z-07B (PTD #2121050) Passing TIFL shows competent barriers All, Producer Z-07B(PTD#2121050) had a passing TIFL performed on March 05, 2014, indicating the presence of competent barriers. At this time the well has been reclassified as Operable, and may remain online. Please call with any questions. Thank you, Laurie Climer BP Alaska - Well Integrity Coordinator ‘Gbooai Wells 1/11 "Organization WIC Office: 907.659.5102 WIC Email: AKDCWeIIlntegrityCoordinator@BP.com From: AK, D&C Well Integrity Coordinator Sent: Wednesday, February 26, 2014 9:17 PM To: AK,\OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 ad Lead; AK, OPS Prod Controllers; Cismoski, Doug A;\baniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D& Well Services Operations Team Lead; AK, RES GPB West VVells Opt Engr; AK, RES GPB East Wells Opt Engr; Burton, Kaity; ris.wallace@alaska.gov'; AK, OPS Well Pad Z Cc: AK, D&C Well Integ Coordinator; AK, D&C DHD Well Integrity Engineer; AK,'D&C Projects Well Integrity Engineer; 'jim.regg@alaska.gov' Subject: UNDER EVALUATION: Producer Z-07B (PTD #2121050) Sustained Inner Annulus`C.asing Pressure Above MOASP All, Producer Z-07B (PTD#2121050) was reported to have sustained inner annulus casing pressure above MORS n 02/23/2014 after it was shut in for a plant upset. The pressures Vvere reported to be tubing/inner annulus/outer annulus of 2110/2130/90 psi. The well is reclassified as Under Evaluation and is placed on a 28 day clock. Plan forward: 1. DHD: Perform TIFL while well is on production 1 Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator [AKDCWeIIIntegrityCoordinator@bp.com] Sent: Wednesday, February 26, 2014 9:17 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Burton, Kaity; Wallace, Chris D (DOA); AK, OPS Well Pad Z Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; Regg, James B (DOA) Subject: UNDER EVALUATION: Producer Z-07B (PTD#2121050)Sustained Inner Annulus Casing Pressure Above MOASP All, Producer Z-07B (PTD#2121050)was reported to have sustained inner annulus casing pressure above MOASP on 02/23/2014 after it was shut in for a plant upset. The pressures were reported to be tubing/inner annulus/outer annulus of 2110/2130/90 psi. The well is reclassified as Under Evaluation and is placed on a 28 day clock. Plan forward: 1. DHD: Perform TIFL while well is on production A copy of the TIO plot is included for reference. Please call with any questions. Thank you, Jack Disbrow BP Alaska-Well Integrity Coordinator G� Global Wells Organization Office: 907.659.5102 WIC Email:AKDCWelllntegrityCoordinator@bp.com 1 % R — ''''' F. A F . , E.Crhfi fl //tom „ AY 292013 RAKER INT ®IIST1 JI II -U1 UO - LEST HUGHES AOGCC COMPANY BP Exploration(Alaska)Enc. INTERMEDIATE FINAL Yes (mandatory) WELL NAME RUN NUMBER �Z^ 'D5 (mandatory) 0``g. FIELD Prudhoe Bay BH SALESMAN Chris(Klotz (mandatory) (mandatory) COUNTY North Slope Borough BH DISTRICT Alaslka (mandatory) (mandatory) STATE Alaska PAGE OF (mandatory) LOG DATE: TODAYS DATE: 4/3/2013 (mandatory) DISTRIBUTION LIST AUTHORIZED BY: IBPENploration(Alaska)iliac. (mandatory) HAS CLIENT BEEN INVOICED FOR ADDITIONAL PRINTS? COMPANYFIELCD FINAL (digital (digital/ ADDRESS(FEDEX WILL NOT DELIVER TO P.O.BOX) LOGS LOGS image) RUM PERSON ATTENTION #OF PRINTS #Oh NHIN 15 #OF COPIES#OF COPIES U 4 4 U 5 4 4 1 P Exploration(Alaska)Inc. I l 3 1 1 I � 1 etrotechnical Data Center LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 2 ConocoPhillips Alaska Inc. I I I 'I I I I Attn Ricky Elgarico PO Box 100360 I Anchorage,Alaska 99510 ” 3 xxonMobil,Alaska 1 1 I 1 I ,I ttn Lynda M.Yaskell and/or Leonardo Elias 1 700 Centerpointe Dr. uite 600 nchorage,Alaska 99503 4 tate of Alaska-AOGCC I 1 f, I! 4II I 1 hristine Shartzer 1333 West 7th Ave,Suite 100 Anchorage,Alaska 99501 ii 5 NR-Division of Oil&Gas � i 1 1 1 'I 'I 1 ttn:Sean Clifton I, :550 W.7th Ave,Suite 800 j Anchorage,Alaska 99501 TOTALS FOR THIS PAGE: 0 5 5 0 0 0 TOTALS FOR ALL PAGES: 0 5 5 0 0 0 F8l/t ---v'7 Re2L..=. 31:_))10Jas ( AZ Iz�uS� From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator@bp.com] � J 1'13 Sent: Sunday, March 31, 2013 8:24 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity; Regg, James B (DOA); Schwartz, Guy L (DOA); Weiss, Troy D; AK, OPS Well Pad Z Cc: AK, D&C DHD Well Integrity Engineer; Climer, Laurie A Subject: OPERABLE: Producer Z-07B (PTD#2121050) Passing MIT-IA All, Producer Z-07B (PTD#2121050) passed a MIT-IA to 2500 psi on 03/18/2013, and has had the IA valve successfully changed out. At this time the well is classified as Operable and can be put online once the PX plug is pulled. Regards, Laurie Climer (Alternate• Jack Disbrow) BP Alaska - Well Integrity Coordinator VYti Gf::, V eels Gil WIC WIC Office: 907.659.5102 WIC Email: AKDCWelllntegrityCoordinator@BP.com From: AK, D&C Well Integrity Coordinator Sent: Thursday, March 07, 2013 8:48 AM To: AK, D&C Well Integrity Coordinator; AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireli•- Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RE PB East Wells Opt Engr; Longden, Kaity; 'jim.regg@alaska.gov'; 'Schwartz, Guy L (DOA)'; Weiss, Troy D• - , OPS Well Pad Z Cc: AK, D&C DHD Well Integrity Engineer (AKD&CDHDWeIII• e•ri • b..com); 'Ryan P Holt (Ryan.Holt@bp.com)'; Arend, Jon Subject: NOT OPERABLE: Producer Z-07B (PTD #21 150) Secured with Downhole Plug All, Producer Z-07B (PTD#2121050)failed an IT-Ton 3/6/2012. The well was secured with a downhole plug and passed a CMIT-TxIA on the same day. The well is reclassified as Not Operable until the TxIA communication is repaired and integrity confirmed. Please call with any questions. Thank you, Jack Disbrow BP Alaska - Well Integrity GWGlobal Wells Organization 1 Office: 907.659.5738 / From: AK, D&C Well Integrity Coordinator Sent: Saturday, February 16, 2013 5:37 PM / To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpacl/1ead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D83,,C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden,, Kaity; AK, OPS Well Pad Z Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Well Integrity coordinator; Walker, Greg (D&C); Holt, Ryan P Subject: UNDER EVALUATION: Producer Z-07B (PTD #2121050) ailed TIFL Pre Scale Inhibitor Treatment All, / Producer Z-07B (PTD#2121050)failed a TIFL on 2/14/201 prior to pumping a scale inhibitor treatment. The well is reclassified as Under Evaluation and placed under a 28-d y clock and may remain on production to facilitate evaluation. As the well did not break MOASP, notification to the AAGCC is not required. Plan forward: 1. Fullbore: Pump scale inhibitor treatment 2. DHD: TIFL A copy of the TIO plot and a wellbore schematic are included for reference. Please call if you have any questions. Thank you, Jack Disbrow BP Alaska - Well Integrity GivGlobal Wellw Cfrclanizat:or' Office: 907.659.5102 2 P� z l z i 0s0 Regg, James B (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator@bp.com] , 313'13 Sent: Thursday, March 07, 2013 8:48 AM l 1 To: AK, D&C Well Integrity Coordinator; AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity; Regg, James B (DOA); Schwartz, Guy L (DOA); Weiss, Troy D; AK, OPS Well Pad Z Cc: AKD&CDHDWellIntegri@bp.com; Ryan.Holt@bp.com; Arend, Jon Subject: NOT OPERABLE: Producer Z-07B (PTD#2121050) Secured with Downhole Plug All, Producer Z-07B (PTD#2121050)failed an MIT-T on 3/6/2012. The well was secured with a downhole plug and passed a CMIT-TxIA on the same day. The well is reclassified as Not Operable until the TxIA communication is repaired and integrity confirmed. Please call with any questions. Thank you, Jack Disbrow BP Alaska - Well Integrity GWf1 i Global Wells y Organization Office: 907.659.5738 From: AK, D&C Well Integrity Coordinator Sent: Saturday, February 16, 2013 5:37 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity; AK, OPS Well Pad Z Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Well Integrity Coordinator; Walker, Greg (D&C); Holt, Ryan P Subject: UNDER EVALUATION: Producer Z-07B (PTD #2121050) Failed TIFL Pre Scale Inhibitor Treatment All, Producer Z-07B(PTD#2121050)failed a TIFL on 2/14/2013 prior to pumping a scale inhibitor treatment. The well is reclassified as Under Evaluation and placed under a 28-day clock and may remain on production to facilitate evaluation. As the well did not break MOASP, notification to the AOGCC is not required. Plan forward: 1. Fullbore: Pump scale inhibitor treatment 2. DHD: TIFL A copy of the TIO plot and a wellbore schematic are included for reference. Please call if you have any questions. 1 of Thank you, Jack Disbrow BP Alaska - Well Integrity GVVGlobal Wells Organizatior. Office: 907.659.5102 2 7—V2::. �'j 4.000 � x I nNJgyo � 2ZtLk� D oro n O 143 y /� �s _ c. /� _ �y O o u, m 0 O rn co r) _ J — J m G) Z * --L r- A 09 \J 00 1_ N (OT N Z'.:r:::;r ai a z = w : I9 � avlD- v U (/', CD O O C) C) O O C) W D O C) C) O O O W O O W W W W w o .v 0 0o Co " CO C) m w C) D -< wn A N C) C)cD A N -'D D D X 1 = 0 a CD (/ NZLC ZJc- pCAC nCCCo oo ""n WmODDNLCD n00LvC L <DOy o CD 0 70 0 0 0 0 0 0 0 0 o O 0 0 0 0 0 0 0 0 0 o m ^r MP , -< 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 p---.= al 0 0 0 0 0 0 . O 0 A O 0 0 0 -a 0 Co a - - A m!< y O A W O A �I O coN Ut O N O 0 O� w COA ONi 09 N O 'n: CD 07 v co 7t1._,a. 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F- .-- O i ) tC) O Cr r, 0000000000/00000000000 . . . . . ./^ce �/ /^ � pa ,ra a a ma ,a pa pp��� ...I. aq �a a.,yah prya a 444, 00000000000000'00001000 CO ' (n 0 RECEIVED STATE OF ALASKA .f1N1 2 4 2013 ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOGAOGCC la. Well Status. • 0 Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class 20AAC 25105 2OAAC 25110 0 Exploratory 0 Stratigraphic 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One , 0 Development 0 Service 2. Operator Name: 5.Date Comp.,Susp.,or Aband.. 12 Permit to Drill Number. BP Exploration(Alaska) Inc. 1/1/2013 212-105 • 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 12/8/2012 ' 50-029-22046-02-00 • 4a. Location of Well(Governmental Section). 7. Date T.D.Reached: 14. Well Name and Number: Surface: 12/12/2012 • PBU Z-07B 974' FNL, 1287'FWL, Sec. 19,T11 N, R12E, UM 8. KB(ft above MSL): 88 62 15.Field/Pool(s) Top of Productive Horizon: 2614' FSL,830' FEL, Sec. 14,T11 N, R11 E, UM GL(ft above MSL): 54.02' • Prudhoe Bay/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD) 3681' FSL,2314'FEL, Sec. 14,T11 N, R11 E, UM . 14770' 9032' • 4b. Location of Well(State Base Plane Coordinates,NAD: 10.Total Depth(MD+TVD) 16 Property Designation • Surface: x- 599011 ' y- 5959100 ' Zone- ASP4 ' 14811' 9061' , ADL 028262&028245 TPI: x- 591568 y- 5962593 Zone- ASP4 11.SSSV Depth(MD+TVD) 17. Land Use Permit: Total Depth:x- 590071 y- 5963643 Zone- ASP4 None 18. Directional Surve : 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD). Y ®Yes ❑No N/A ft MSL 1900'(Approx.) (Submit electronic and printed information per 20 AAC 25.050) ( PP ) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25 071): 22.Re-Drill/Lateral Top Window MD/TVD: MWD/GR/RES, GR/CCL/MCNL 12709' 8862' 23 CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE Top BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" Insulated Conductor Surface 110' Surface 110' 30" 280 cu ft Arctic Set(Approx.) 13-3/8" 68# L-80 Surface 2740' Surface 2645' 17-1/2" 3806 cu ft Permafrost 9-5/8" 47# NT-80S Surface 10286' Surface 7511' 12-1/4" 365 cu ft Class'G' 7" 29# L-80 10133' 12709' 7409' 8862' 8-1/2" 209 cu ft Class'G' 3-1/2"x 3-1/4" 9.2#/6.6# L-80 12045' 14810' 8507' 9060' 4-1/8" 98 sx Class'G' x 2-7/8" /6.4# /13Cr80 24. Open to production or injection? 0 Yes 0 No 25 TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ (MD+TVD of Top&Bottom,Perforation Size and Number): TVD) 2"Gun Diameter,6 spf 4-1/2", 12.6#, 13Cr80 12069' 12009'/8487' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 13280'-13410' 8917'-8919' WAS HYDRAULIC FRACTURING USED DURING COMPLETION"❑Yes 0 No 13440'-13520' 8918'-8916' 13540'-13820' 8916'-8918' DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 13870'-13990' 8915'-8910' i I' 2500' Freeze Protect w/45 Bbls of Diesel 14060'-14480' 8910'-8910' 104i, .. ..„... 27. PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc January 20,2013 _ Gas Lift Date of Test Hours Tested Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 1/20/2013 6 Test Period 4 415 201 6 176 484 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 320 1560 24-Hour Rate 4 1658 • 802 24 N/A 28. CORE DATA Conventional Core(s)Acquired? 0 Yes 0 No • Sidewall Core(s)Acquired? 0 Yes 0 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 7 (submit separate sheets with this�e.4 pee ed) Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071 �,JMS JAN 2 8 2013 None G Form 10-407 Revised 10/2012 CONTINUED ON REVERSE n`7 y./S•i3 Su it Qriginal Only 7. 29. GEOLOGIC MARKERS(List all formations a irkers encounter 30. FORMATION TESTS NAME MD ND Well Tested? Yes ®No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Kicked off in Eileen 12689' 8852' None (From Parent Well) Ivishak/Zone 4 12775' 8893' • Formation at Total Depth: Ivishak/Zone 4 12775' 8893' 31 List of Attachment. Summary of Daily Drilling Reports, Summary of Post-Rig Work,Well Schematic Diagram, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Email. David.Johnston2@bp.com Contact: - id Johnsto 564-5985 Title: Drilling Technologist Printed Name: .- astufl�a Signatur- \ Phone 564-4091 Date: I/24113 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item la: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26 (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation' Flowing,Gas Lift, Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 10/2012 Submit Original Only r TREE= 4-1/16"aw WI LHFAD= FMAC''' p Z-0 [ B INITIAL&ST AAFE AL" NOTS OWN BELOW M 2787' *t MILLOUT ACTUATOR= BAKER C PJC C QR T I WINDOWS"""4-1/2"CHROME TBG&2-7/8"LNR""" ANTRAL KB.ELE 91.81 BF.ELEV= 57.56' KOP= 1600' 2102' –14-112'OTIS SSSV NP,D=3.813" Max Angle= 94'@ 13820' 20"CONDUCTOR 110' 0 Datum Ma= 12764' GAS LIFT MANDRELS Datum TVD= 8800'SS ST ND IVI? DEV TYPE VLV LATCH PORTDATE 13-3/B"CSG,68#,L-80,D=12.415" –1 2740' 4 3418 3114 50 !VERA DOWE 16 0 01!02113 3 7198 5491 53 M ERL.A SO 20 0 01/02213 2 9924 7271 49 IVERLA DMY RK 0 09/19/93 Minimum ID =2.377" x@13208' 1 10034 7344 49 NERLA DMY RK 0 02/12/12 3-3/16" X 2-7/8" LNR XO 10133' –19-5/8"BKRTIE BACK SLV,D=7.50" 10141' H 9-5/8"X 7"BKR LIP w/HGR,ID=6.187 9-5/8"CSG,47#,NT-80S BUTT,D=8.681" H –10286 I-- 9-5/8"MILLOUT WINDOW(Z-07A) 10286'-10336' 11951' –14-112"FKR SWS NIP,ID=3.813 12009' Hr X 4-1/2"BKR S-3 PKR,D=3.875" 1-1 12039' H4-112"PKR SWS X NP,D=3.813- 12045' –14-112"KB LTP,ID=2.36"(01/01/13) TOP OF LNR(3-1/2"X 3-1/4"X 2-7/8") H 12051' 12051' –{3.70"DEPLOY SLV,D=3.00" 12056' 4-1/2"PKR SWN XN NIP, MLL®TO 3.80"(08/27/12) BEHIND 4-1/2"TBG,12.6#13 CR-NSCT, --j 12067' 1-- \ I 12069' –14-1/2"WLEG,D=3.958" CT LNR .0152 bpf,D=1958- 12078' H E LMD LOGGED ON XX/XX/XX? 3-1/2"LNR,9.2#,L-80 STL, 0087 bpf,ID=2.992" 'H 12104' �— ` } 12104' –13-1/2"X 3-3/16"XO,D=2.786" 4-1/2"X 7"BKR WHIPSTOCK(08/27/12) 'H 12703' 0-1 12640' –17"MARKER JOINT 7"LNR,29#,L-80 NSCC,.0371 BPF,ID=6.184" H –12703 7"MLLOUT WNDOW(Z-07B) 12709'- 12717' PERFORATION SUTMARY REF LOG:SLB Mai CCL/GR/TNF/IM ON 12/14/12 ANGLE AT TOP FEW:94'@ 13820' Note:Refer to Production DB for historical pert data SIZE SFF fNT R'VAL Opn/Sqz SHOT SQZ 13208' –13-3/16"X 2-7/8"XO,D=2.377" 2" 5 13280-13410 0 12/15/12 2" 5 13440-13520 0 12/15/12 2" 6 13540-13820 0 12/15/12 2' 6 13870-13990 0 12/15/12 2" 6 14060-14480 0 12/15/12 3-1/4"LNR,6.6#,L-80 TCI,.0379 bpf,1D=2.85" – 13208' PBTD 14770' ria 011 2-7/8"LNR,6.4#,13CR-80 STL,.0058 bpf,1D=2.441" 14810' DATE REV BY COMTBNTS DATE REV BY CONTENTS PRUDHOE BAY UNIT 06/13/90 AUDI 2 INITIAL COMPLETION 01/23/13 DJ/JND 7"MLLOUT DEPTH CORRECTION WELL Z-07B 09/20/93 D-14 SIDETRACK(Z-07A) PERMIT No:'2121050 12116/12 NORDIC 2`CTD SIDETRACK(Z-07B) API No: 50-029-22046-02 12/30/12 PJC DRLG DRFT CORRECTIONS SEC 19,T1114,R12E,974'FNL&1287'FWL 01/03/13 NW/PJC SET LTP&GLV(1/1-1/2/13) 01/09/13 GRC/PJC FERE CORRECTONS BP Exploration(Alaska) 1 North America-ALASKA- BPS Page 1 of 7 Operation Summary Report Common Well Name:Z-07 ,. I AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:12/5/2012 ' End Date. 12/12/2012 X3-0121 J-C:DRILL(2,527,095.10) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/5/2012 21:00 - 21:30 0.50 MOB P PRE BEGIN RON EVENT WITH NORDIC 2 CTD RIG AT 21:00 HRS ON 12/05/12. 21:30 - 22:00 0.50 MOB P PRE PJSM FOR MOVING OFF WELL W-02. 22:00 - 22:45 0.75 MOB P PRE BACK OFF W-02 AND SPOT ON W PAD. 22:45 - 00:00 1.25 MOB P PRE ,CLEAR RIG MATS FROM AROUND WELL. COMPLETE WWT PERMIT WITH PAD OPERATOR AND W-02 12/6/2012 00:00 - 02:30 2.50 MOB P PRE MOVE RIG OFF OF W PAD, DOWN ACCESS ROAD,ON TO SPINE ROAD TO Z PAD ACCESS ROAD. 02:30 - 04:00 1.50 MOB P PRE MOVE TO Z PAD FROM ACCESS ROAD. 04:00 - 10:00 6.00 MOB P PRE SPOT RIG MATS AROUND WELL, PREP TO MOVE TIG OVER Z PAD. 10:00 - 12:00 2.00 MOB P PRE PJSM,THEN PULLOVER WELL. ACCEPT RIG ON Z-07B AT 10:00. 12:00 - 13:00 1.00 RIGU , P PRE PJSM THEN PICK UP 2-3/8"E-COIL. 13:00 - 14:00 1.00 BOPSUR P PRE LEAK TIGHT TEST 14:00 - 16:00 2.00 BOPSUR _P PRE REMOVE TREE CAP NU BOPS 16:00 - 17:00 1.00 BOPSUR P PRE FILL BOPE FOR SHELL TEST 17:00 - 22:00 5.00 BOPSUR P PRE SHELL TEST BOPE TO 250/3500 PSI. TEST BOPS. TEST CHOKE VALVES,CHOKE AND KILL HCR, INSIDE MANUAL VALVES ON CHOKE AND KILL LINE, BOP RAMS AND ANNULAR e PREVENTER. ('�, TEST 2 TIW VALVES. Y' TEST ANNULAR AND PIPE RAMS WITH 2-3/8" TEST JOINT. TEST VBRS WITH 2-3/8"AND 3-1/2"TEST JOINTS. EACH TEST TO 250/3500 PSI FOR 5 CHARTED MIN. ACCUMULATOR DRAWDOWN TEST TEST WITNESSED BY TOOLPUSHER, NORDIC SUPT, WSL,AND AOGCC CHUCK SCHIEVE -SEE ATTACHED CHARTS AND TEST REPORT 22:00 - 23:15 1.25 BOPSUR P PRE RIG UP INJECTOR AND STUFFING BOX, INSTALL NEW PACK-OFF AND BRASS. 23:15 - 00:00 0.75 BOPSUR P PRE PJSM FOR PULLING COIL ACROSS. REMOVE SHIPPING BAR,PULL TEST GRAPPLE. • PULL COIL ACROSS STAB INTO INJECTOR 12/7/2012 14:30 - 15:30 1.00 STWHIP P WEXIT PICK UP BHA#1 -WINDOW MILL WITH 2 JTS PI-16,3"COILTRAK. 00:00 - 01:30 1.50 BOPSUR P PRE FILL COIL WITH 10 BBLS MEOH FOLLOWED BY FRESH WATER AT 1 BPM. 01:30 - 02:15 0.75 BOPSUR P PRE REVERSE CIRCULATE TO PREP FOR INNER REEL VALVE TEST. 02:15 - 02:45 0.50 BOPSUR P PRE CLOSE INNER REEL VALVE AND PRESSURE I TEST INNER REEL VALVE AND PACK-OFF TO 250/3500 PSI.GOOD TEST. Printed 12/26/2012 10:49:34AM North America-ALASKA- BP • Page 2 of 7 Operation Summary Report Common Well Name:Z-07 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/5/2012 End Date: 12/12/2012 X3-0121J-C:DRILL(2,527,095.10) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:45 - 04:45 2.00 BOPSUR P PRE PUMP SLACK BACK TEST E-LINE INSTALL CUT 3'OF COIL INSTALL COIL CONNECTOR,PULL TEST TO 38K HEAD UP BHI.TEST E-LINE 04:45 - 05:15 0.50 BOPSUR P PRE H2S/RIG EVAC DRILL.ALL PERSONNEL MUSTERED,REVIEWED PROCEDURES AND HELD AAR. 05:15 - 06:00 0.75 BOPSUR P PRE TEST BAKER CHECKS TO 250/3500 PSI. TEST CONNECTOR TO 250/3500 PSI. 06:00 - 09:00 3.00 BOPSUR P PRE LOAD BTT MOTOR AND MILLS TO RIG FLOOR. CONDUCT RIG EVAC DRILL WITH AAR. PREP TO PULL TWC. 09:00 - 10:00 1.00 BOPSUR P PRE LIFT LUBRICATOR TO RIG FLOOR. MAKE UP 5 FT EXTENSION BARS AND GET ON WELL. 10:00 - 10:30 0.50 BOPSUR P PRE PRESSURE TEST LUBRICATOR AGAINST CLOSED SWAB AND SSV. 10:30 - 11:25 0.92 BOPSUR P PRE OPEN SWAB,SSV AND MASTER VALVE. PULL TWC. WHP=25 PSI. RETRACT SETTING TOOL,CLOSE MASTER, SWAB AND SSV TO RE-ESTABLISH BARRIERS. OFFLOAD LUBRICATOR AND PULLING TOOLS. 11:25 - 13:00 1.58 BOPSUR P PRE OPEN WELL UP AND MONITOR. BLOW OUT STACK TO TIGER TANK. PJSM FOR PUMPING SLACK FORWARDS AND PICKING UP BHA. 13:00 - 14:30 1.50 BOPSUR P PRE GET ON WELL,PUMP SLACK FORWARDS. CABLE ISN'T HEARD MOVING. USE FRESH WATER AND PUMP 1 REEL VOLUME. 15:30 - 16:30 1.00 STWHIP P WEXIT PRESSURE TEST QTS THEN RIH. PUMP 0.45 BPM 9 PPG BRINE THROUGH OPEN EDC. TAKE RETURNS TO TIGER TANK. 16:30 - 18:30 2.00 STWHIP P WEXIT RIH. LOG TIE-IN AT SAG RIVER,(-10)' CORRECTION. TAG 12,711'. 18:30 - 20:00 1.50 STWHIP P WEXIT START MILLING WINDOW FROM TAG AT 12,709'.START 9.0 PPG MUD DOWN COIL, `/, UNABLE TO MILL UNTIL MUD AROUND THE BACKSIDE(CHROME TUBING AND NO LUBES IN KCL). '1J 20:00 - 00:00 4.00 STWHIP P WEXIT 2950 PSI FREESPIN AT 2.6 BPM IN/OUT.MILL 1 FPH WITH 2.6K#DHWOB MILL TO 12713.8' Printed 12/26/2012 10:49:34AM North America -ALASKA- BP • Page 3 of 7, Operation Summary Report Common Well Name:Z-07 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 12/5/2012 End Date: 12/12/2012 X3-0121 J-C:DRILL(2,527,095.10) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth' Phase Description of Operations (hr) (ft) 12/8/2012 00:00 - 00:30 0.50 STWHIP P WEXIT PICK UP FOR FLOW CHECK,4 BBLS GAIN IN PVT(344 TO 348 BBLS).FLOW CHECK 10 MIN, NO FLOW.CHECK PITS AND SENSORS, MANUAL STRAP SHOWS SAME GAIN. COME UP WITH PUMP,IN DENSITY 8.97 PPG, OUT DENSITY 8.87 PPG. OBTAIN SPRS 12703' PUMP#1:0.5 BPM=1410 PSI,1.0 BPM= 1644 PSI,2.6 BPM=2860 PSI PUMP#2:0.5 BPM=1400 PSI,1.0 BPM= 1622 PSI,2.6 BPM=2830 PSI 00:30 - 04:00 3.50 STWHIP P WEXIT GO MAKE TO MILLING FROM 12,713.8',TIME MIL 1 FPH,120 PSI,MOTOR WORK,0.5 TO 2k# DHWOH WITH 2.64 BPM IWOUT. 04:00 - 06:30 2.50 STWHIP P WEXIT MILL WINDOW FROM 12717'.SAMPLE FROM 12715 SHOWED 15%FORMATION. PUMP 2.64 BPM IN/OUT AT 2960 PSI,1.0K# DHWOB. 06:30 - 07:00 0.50 STWHIP P WEXIT CONTINUE MILLING RATHOLE DOWN TO 12727 FT. PVT=350 BBLS. 07:00 - 08:50 1.83 STWHIP P WEXIT REAM WINDOW 3 TIMES UP DOWN. NO MOTOR WORK OR SETDOWNS SEEN ON ANY OF THE PASSES. 08:50 - 09:30 0.67 STWHIP P WEXIT PICK UP ABOVE WINDOW AND SHUT OFF PUMP. DRY DRIFT THROUGH WINDOW. TAG TD OF RATHOLE AT 12726 FT. CLEAN PASS THROUGH WINDOW. PICK UP ABOVE WINDOW AND SHUT OFF PUMP. CAN'T OPEN EDC HERE,PRESSURE DIFFERENCE IS ABOUT 150 PSI. PULL UP ANOTHER 100 FT AND SHUT OFF PUMP. BOTTOMS UP SAMPLE IS 50%CEMENT,35% EILEEN SAND,5%PIPE SCALE,5%SHALE. ' 09:30 - 12:00 2.50 STWHIP P WEXIT FLOW CHECK ABOVE WINDOW IS GOOD. POOH, PUMP 2.5 BPM THROUGH MOTOR, DIFFERENTIAL ACROSS TOOL IS 125 PSI AFTER 10 MIN,STILL CAN'T OPEN EDC(MAX IS 100 PSI). STOP AT 10000 FT AND OPEN EDC. CONTINUE POOH PUMP 3.4 BPM. 12:00 - 12:45 0.75 • STWHIP P WEXIT PJSM WHILE POOH,NEAR SURFACE. TRIP SHEET IS EVEN TO THIS POINT. STOP AT 500 FT AND FLOWCHECK. FLOWCHECK IS GOOD. 12:45 - 13:30 0.75 STWHIP P WEXIT PULL REMAINING WAY OUT OF HOLE. TAG STRIPPER AND UD BHA. MILL IS 3.77 NO-GO, REAMER IS 3.78 NO-GO. 13:30 - 13:50 0.33 STWHIP P WEXIT CHECK TREE BOLT TORQUE. ABLE TO SLIGHTLY TIGHTEN A FEW BOLTS. 13:50 - 14:30 0.67 • DRILL P PROD1 PICK UP BHA#2,BUILD ASSEMBLY WITH 2.5 DEG AKO AND 3"COILTRAK. BHA OAL=67.58 FT. 14:30 - 16:45 2.25 DRILL P PROD1 PRESSURE TEST QTS. RIH,PUMP 0.55 BPM/1100 PSI THROUGH OPEN EDC. 16:45 - 17:10 0.42 DRILL P PROD1 LOG TIE-IN AT SAG RIVER AT 12,450'WITH (-13)'CORRECTION Printed 12/26/2012 10:49:34AM North America -ALASKA- BP "Page 4 of 7 • Operation Summary Report Common Well Name:Z-07 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/5/2012 End Date: 12/12/2012 1X3-0121J-C:DRILL(2,527,095.10) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time: 5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) _ 17:10 - 19:00 1.83 DRILL P PROD1 RIH TO DRILLNG DEPTH AT 12,726' DRILL BUILD SECTION AT 2.6 BPM IN/OUT AT 2930 PSI. IRRADIC TOOL FACE,TIGHT SAND AND SHALE IN THE EILEEN. 19:00 - 22:00 3.00 DRILL P PROD1 SLOW DRILLING FROM 12740'. 2.67 BPM IN/OUT AT 2900 PSI, ROP 10-15 FPH. 2K#DHWOB,10.4 PPG ECD,PVT 347 BBLS 22:00 - 00:00 2.00 DRILL P PROD1 AT 12790'ROP INCREASE TO 50 FPH. 2.7 BPM IN/OUT,3010 PSI,1.3K#DHWOB IAP 115 PSI,OAP 90 PSI,PVT 347 BBLS OBTAIN SPRS 12800' PUMP#1:0.5 BPM=1260 PSI,1.0 BPM=1538 PSI,2.7 BPM=2815 PSI PUMP#2:0.5 BPM=1256 PSI,1.0 BPM=1556 PSI,2.7 BPM=2823 PSI 12/9/2012 00:00 - 02:00 2.00 DRILL P PROD1 DRILL AHEAD FROM 12875'AT 30-40 FPH.2.66 BPM IN/OUT AT 3120 PSI. 4.5K#DHWOB,10.47 PPG ECD, PVT 351 BBLS (CENTRIFUGE ON). DRILL TO 12980'WITH CLEAN PICK-UPS. 02:00 - 04:00 2.00 DRILL P PROD1 .BHA WIPER, DRILL TO 13,000' ROP 70 FPM AT 2.65 BPM IN/OUT 3127 PSI, 3.5K#DHWOB. 04:00 - 06:00 2.00 DRILL P PROD1 DRILL FROM 13,000 2.6 BPM IN/OUT AT 3100 PSI, ROP 40-60 FPH. 4K#DHWOB,10.5 PPG ECD, PVT=348 BBLS DRILL TO 13100'. 06:00 - 06:40 0.67 DRILL P PROD1 DRILL TO 13105 FT, END OF BUILD SECTION. POOH. PULL THROUGH WINDOW 0.5 BPM,30L TF. GO BACK TO FULL RATE AND DO A 100 FT JOG,THEN OPEN EDC. FLOW CHECK IS GOOD. NOTE: NO WIPER TRIPS TO WINDOW WERE DONE IN THE 375 FT BUILD SECTION, IN ORDER TO TRY EXTENDING THE WIPER TRIP SCHEDULE. ON THE TRIP OOH,JUST ONE MINOR PROBLEM AREA WAS SEEN,SOME MOTOR WORK WITH NO OVERPULL WAS SEEN AROUND 12900 FT. 06:40 - 09:05 2.42 DRILL P PROD1 POOH,PUMP 3.4 BPM THROUGH OPEN EDC. 09:05 - 09:30 0.42 DRILL P PROD1 STOP AT 400 FT AND FLOW CHECK WELL. TRIP SHEET IS-5 BBLS TO THIS POINT. FLOW CHECK IS GOOD. PULL REMAINING WAY OUT OF HOLE. 09:30 - 10:30 1.00 DRILL P PROD1 TAG STRIPPER AND LAY DOWN BUILD BHA. BIT IS 2-2,CHIPPED CUTTERS ON NOSE AND WINGS. MAKE UP BHA#3-LATERAL ASSEMBLY WITH HCC BI-CENTER,3.12"MOTOR WITH 1.5 DEG AKO,3"COILTRAK WITH RES. BHA OAL=86.26 FT. 10:30 - 13:30 3.00 DRILL P PROD1 PRESSURE TEST QTS THEN RIH. PUMP 0.6 BPM/1200 PSI THROUGH OPEN EDC. Printed 12/26/2012 10:49:34AM . North America-ALASKA- BP • Page 5 of 7 Operation Summary Report Common Well Name:Z-07 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/5/2012 End Date: 12/12/2012 X3-0121J-C:DRILL(2,527,095.10) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:30 - 16:00 2.50 DRILL P PROD1 START LONG TIE-IN FROM 12450 FT. LOG GR DOWN AT 300 FT/HR TO TIE-IN PIP TAGS TO FORMATION AND MAD PASS WITH RES. CORRECT-10 FT. 16:00 - 16:10 0.17 DRILL P PROD1 SET DOWN AT 13080 FT,PICK UP AND POP THROUGH. 16:10 - 18:30 2.33 DRILL P PROD1 DRILL FROM 13100 FT. 2.70/2.70 BPM @ 3270 PSI FREE SPIN. HOLD 105R TOOLFACE FOR NOW TO GET LINED UP TO STAY IN POLYGON. AFTER 13110 FT SEE SLIGHT LOSS OF RETURNS. 2.68/2.55 BPM. 18:30 - 22:00 3.50 DRILL P PROD1 DRILL FROM 13,250'. PUMP 2.66 BPM IN/2.55 BPM OUT AT 3365 PSI. 2K#DHWOB,10.49 PPG ECD, ROP 70-100 FPH. 5 BPH LOSS RATE. DRILL TO 13520' 22:00 - 00:00 2.00 DRILL P PROD1 ECD INCREASE TO 10.66,WIPER TRIP TO WINDOW. JOG ABOVE WINDOW.OPEN EDC,CIRC UP TO 12,000'ABOVE 7"CASING INTERVAL AT 3 BPM. 12/10/2012 00:00 - 01:00 1.00 DRILL P PROD1 RIH AFTER WIPER,TIE-IN AT RA TAG WITH (+4)'CORRECTION. 01:00 - 02:00 1.00 DRILL P PROD1 DRILL AHEAD FROM 13520'. AT 2.7 BPM IN/OUT AND 3420 PSI,2.25K# DHWOB 10.6 PPG ECD. 02:00 - 04:00 2.00 DRILL P PROD1 DRILL AHEAD AT 13543'. START MUD DOWN COIL FOR MUD SWAP. PARAMETERS WITH NEW MUD AT BIT:2.7 BPM IN/OUT,3780 PSI,3K#DHWOB ROP 60-80 FPH. IAP 130 PSI,OAP 95 PSI 04:00 - 08:40 4.67 DRILL P PROD1 BHA WIPER AT 13,620' OBTAIN SPRS 13650' PUMP#1:0.5 BPM= 1794 PSI,1.0 BPM=2069 ✓ PSI,2.7 BPM=3365 PSI PUMP#2:0.5 BPM= 1798 PSI,1.0 BPM=2073 PSI,2.7 BPM=3369 PSI DRILL AHEAD AT 13,620', ROP 60-80 FPH. PVT=359 AFTER MUD SWAP AND PITS FULL _ DRILL TO 13848 FT. 08:40 - 11:30 2.83 DRILL P PROD1 DRILL TO 13848 FT. DIFFICULT SLIDING, PULL LONG WIPER TO TUBING TAIL FROM HERE. MINOR WEIGHT BOBBLES SEEN ON THE 1 WAY UP. PULL THROUGH WINDOW AND PERFORM A JOG AT FULL PUMP RATE ABOVE THE WHIPSTOCK. OPEN EDC ABOVE WHIPSTOCK. PUMP 3,4 BPM BACK TO 12000 FT,JUST INSIDE TUBING TAIL. Printed 12/26/2012 10:49:34AM • North America -ALASKA- BP 'Page 6 of 7 Operation Summary Report Common Well Name:Z-07 IAFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/5/2012 End Date: 12/12/2012 X3-0121J-C:DRILL(2,527,095 10) Project:Prudhoe Bay Site:PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 13:30 2.00 DRILL P PROD1 ON BOTTOM DRILLING. HOLD 9OR TOOLFACE FOR NOW TO HOLD ANGLE AND CONTINUE RH TURN TO STAY IN POLYGON. 2.69/2.67 BPM @ 3500 PSI FREE SPIN. 9.1/9.06 PPG MUD IN/OUT. PVT=350 BBLS. 13:30 - 18:00 4.50 DRILL P PROD1 CONTINUE DRILLING PAST 13875 FT. SLOW DRILLING THROUGH SHALE INTERVALS. 2.68/2.68 BPM @ 3600 PSI FREE SPIN. PVT=345 BBLS. LOSING ABOUT 3 BBLS/HR. 18:00 - 21:00 3.00 DRILL P PROD1 1820 OBTAIN SPRS 14020' PUMP#1:0.5 BPM=1915 PSI,1.0 BPM=2234 PSI,2.7 BPM=3600 PSI PUMP#2.0.5 BPM=1923 PSI,1.0 BPM=2245 PSI,2.7 BPM=3593 PSI DRILL AHEAD AT 14,020' 2.56 BPM IN/OUT AT 3650 PSI WITH 3.25K# DHWOB. IAP 180 PSI,OAP 100 PSI 21:00 - 21:45 0.75 DRILL P PROD1 DRILL AHEAD FROM 14050'. PUMPING 2.5 BPM IN/OUT AT 3780 PSI,3K# DHWOB 4.25K#PVT 328 BBLS ROP 20 FPH 21:45 - 00:00 2.25 DRILL P PROD1 AT 14,065 ROP INCREASE TO 70 FPH COMING OUT OF A SHALE INTERVAL. 2.5 BPM IN/OUT AT 3835 PSI,3.55K#DHWOB PVT=326 BBLS,LOSSES-3 BPH. 12/11/2012 00:00 - 01:00 1.00 DRILL P PROD1 DRILL TO 14225'. AT 2.5 BPM IN/OUT,ROP 70 FPH. 01:00 - 03:30 2.50 DRILL P PROD1 WIPER TRIP TO 7"CASING. ABOVE WINDOW OPEN EDC AND JET 7" CASING TO 12,000'. CLOSE EDC ABOVE WINDOW,RIH TO ✓ DRILLING DEPTH. 03:30 - 06:00 2.50 DRILL P PROD1 DRILL AHEAD FROM 14225'. 2.6 BPM IN/OUT AT 4020 PSI WITH 4.5K# DHWOB. PVT 315 BBLS, IAP 190 PSI,OPA 100 ROP 70-80 FPH. 06:00 - 08:20 2.33 DRILL P PROD1 START MUD SWAP. CONTINUE DRILLING FROM 14350 FT. 08:20 - 09:30 1.17 DRILL P PROD1 NEW MUD OUT THE BIT. ROLL TOOLFACE 180L AT 14425 FT TO BEGIN LONG DOWNHILL TO TD. 09:30 - 12:00 2.50 DRILL P PROD1 CONTINUE DRILLING PAST 14465 FT. NEW MUD IS ALL THE WAY AROUND. 2.67/2.67 BPM @ 3400 PSI FREE SPIN. ROP IS AROUND 40-60 FT/HR WITH 3.2K DWOB. 9.05/9.04 PPG MUD IN/OUT. RECORD SLOW PUMP PRESSURES WITH BOTH PUMPS. 12:00 - 14:20 2.33 DRILL P PROD1 CONTINUE DRILLING PAST 14540 FT. SLOW ROP. 2.60/2.61 BPM 2 3600 PSI FREE SPIN. HOLD 150L TOOLFACE FOR NOW TO CONTINUE REDUCING INCLINATION. STILL LOSING ABOUT 2 BBL/HR. DRILL TO 14600 FT. VERY SLOW ROPS HERE. Printed 12/26/2012 10:49:34AM • North America -ALASKA- BP Page 7 of 7 Operation Summary Report Common Well Name:Z-07 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 12/5/2012 End Date: 12/12/2012 [X3-0121 J-C:DRILL(2,527,095.10) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:20 - 17:00 2.67 DRILL P PROD1 WIPER TRIP TO TUBING TAIL FROM 14600 FT. REDUCE PUMP TO 0.6 BPM GOING THROUGH WINDOW. PERFORM JOG ABOVE WINDOW THEN OPEN EDC. CLEAN 7"TUBING AT 3.5 BPM/3600 PSI. 17:00 - 00:00 7.00 DRILL P PROD1 DRILL AHEAD F/14,600'-14,790'MD. 2.53/2.52 BPM @ 3600 PSI FREE SPIN, DHWOB-1.5-3K PVT-293-271 BBLS,IA-248 OA-111 12/12/2012 00:00 - 01:00 1.00 DRILL P PROD1 DRILL AHEAD F/14,790'-14,810'MD TOTAL DEPTH. .2.53/2.52 BPM @ 3600 PSI FREE SPIN, DHWOB- 1.5-3K PVT-293-271 BBLS, IA-248 OA-111 01:00 - 02:45 1.75 DRILL P PROD1 WIPER TRIP F/14,810'-12,700'MD. 02:45 - 04:00 1.25 DRILL P PROD1 RE-LOGGED TIE-IN(+5'CORRECTION)-RIH TAG BOTTOM @ 14,811'MD. 04:00 - 06:00 2.00 DRILL P PROD1 POOH LAYING IN LINER PILL Fl 14,811'- 12,690'MD.OPEN EDC.FLOW CHECK CONT.POOH F/12,690'-9,500'MD. 06:00 - 07:50 1.83 DRILL • P PROD1 CONTINUE POOH. -PJSM AT 2000 FT FOR UD BHA. TRIP SHEET IS-14 BBLS TO THIS POINT. 07:50 - 08:30 0.67 DRILL P PROD1 PERFORM JOG AT SURFACE,300 FT. FLOW CHECK WELL AT 300 FT AND CLOSE EDC. GOOD FLOW CHECK. TAG STRIPPER AND UD BHA. _BIT IS 1-2,CHIPPED CUTTERS. 08:30 - 09:00 0.50 BOPSUR P PROD1 FUNCTION TEST BOPS FROM DRILLERS PANEL. GOOD TEST. • Printed 12/26/2012 10:49:33AM North America -ALASKA- BP Page 1 of 5 Operation Summary Report Common Well Name:Z-07 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/12/2012 End Date: 12/16/2012 X3-0121J-C:DRILL(1,348,056.45) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time: 5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A©88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/12/2012 09:00 - 10:00 1.00 CASING P RUNPRD PSJM FOR PUMPING OUT OF CT. MEANWHILE CONTINUE SWAPPING CT TO FRESH WATER IN THE CIRC HOLE FOR PUMPING EXCESS CABLE OUT. LOAD BTT LINER TOOLS ONTO RIG. 10:00 - 11:00 1.00 CASING P RUNPRD LIFT UP INJECTOR ANDREMOVE BHI CABLE -HEAD. FILL WELL WITH 2 BBLS. MOVE CT OVER CIRC HOLE AND PUMP OUT 322 FT.OF CABLE. 11:00 - 12:00 1.00 CASING P RUNPRD INSTALL BTT COIL CONNECTOR AND PULL TEST,GOOD. INSTALL TEST SUB AND PRESSURE TEST CT CONNECTOR 2507 3500 PSI,GOOD. 12:00 - 12:40 0.67 CASING P RUNPRD SWAP CT OVER TO MUD 12:40 - 14:10 1.50 CASING P RUNPRD MU NOZZLE AND STRINGER AND GET ONTO WELL. PUMP 3/4"DRIFT BALL AROUND. BALL IS HEARD ROLLING. 14:10 - 15:10 1.00 CASING P _ RUNPRD RECOVER BALL. CHANGE STRIPPER ELEMENTS. PRESSURE TEST STRIPPER 300/3700 PSI, GOOD. 15:10 - 16:00 0.83 CASING P RUNPRD BLEED OFF PRESSURE.OPEN WELL AND ✓ FILL WITH 1 BBL. PREP RIG FLOOR FOR RUNNING LINER. 16:00 - 18:00 2.00 CASING P RUNPRD PJSM THEN MAKE UP LINER AS PER TALLEY. RIH WITH LINER F/0'-765'MD. 18:00 - 19:00 1.00 CASING P RUNPRD INSPECT TOOLS AND EQUIPMENT. PJSM FOR RUNNING LINER. CLEAN RIG FLOOR. 19:00 - 00:00 5.00 CASING P RUNPRD RIH WITH LINER F/765'-2,863'MD. FILL EVERY 30 JOINTS WITH WATER. 12/13/2012 00:00 - 00:30 0.50 CASING P RUNPRD PRESSURE TEST QTS,GOOD 00:30 - 01:30 1.00 CASING P RUNPRD CIRCULATE 1 LINER VOLUME 01:30 - 04:45 3.25 CASING P RUNPRD RIH F/2,834'-13,300'MD'. 04:45 - 06:00 1.25 CASING N SFAL 12,699.97 RUNPRD NOTICED A LEAK ON THE INJECTOR.POOH F/13,300'-12,700'MD TO BRING LINER BACK INTO CASED HOLE WHILE MECHANICS TROUBLSHOOT THE LEAK. FOUND PINHOLE LEAK ON A HIGH PRESSURE HARDLINE. WILL REMOVE AND REPAIR PINHOLE LEAK _ BEFORE MOVING INTO OPEN HOLE. 06:00 - 07:30 1.50 CASING N SFAL 12,699.97 RUNPRD DISCUSS PLAN FORWARD WITH SLB IN DEADHORSE. 07:30 - 08:00 0.50 CASING N SFAL 12,699.97 RUNPRD GO TO NEUTRAL WEIGHT AND CLOSE UPPER PIPE SLIP RAMS TO HOLD CT. MANUALLY LOCK BOP RAMS IN. LOCK IN SKATE PRESSURE AND SHUT DOWN POWER PACK. Printed 12/26/2012 10:49:44AM North America-ALASKA- BP • Page 2 of 5 Operation Summary Report Common Well Name:Z-07 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/12/2012 End Date: 12/16/2012 X3-0121J-C:DRILL(1,348,056.45) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 16:00 8.00 CASING N SFAL 12,699.97 RUNPRD REMOVE SECTION OF HARDLINE WITH PINHOLE LEAK. BRING BACK TO DEADHORSE FOR REPAIR. 16:00 - 16:30 0.50 CASING N SFAL 12,699.97 RUNPRD PJSM THEN INSTALL REPAIRED FITTING. PRESSURE TEST IN PLACE AGAINST THE REEL BRAKE. PT IS GOOD,OPEN BOPS AND POOH TO INSPECT SLIP MARKS. VERY MINOR MARKINGS ON CT. 16:30 - 18:15 1.75 CASING P RUNPRD RUN 3-1/2"X 3-1/4"X 2-7/8"PRODUCTION LINER ON 2-3/8"COILED TUBING FROM LINER TOTAL LENGTH AT 2759'MD TO 7"LINER WINDOW FLAG AT 9786'MD;60-100 FPM,0.3 BPM,1600 PSI CORRECT DEPTH TO FLAG (-19'). CONTINUE IN HOLE WITH LINER AND TAG BOTTOM AT 14802'MD(< 10'VARIATION FROM PLANNED SETTING DEPTH AT 14810' MD). FINAL PICKUP WEIGHT=48 KLBS, SLACKOFF=10 KLBS. 18:15 - 20:00 1.75 CASING _P RUNPRD PUMP 5 BBLS 8.4 PPG KCL DOWN COIL. _ LAUNCH 5/8"STEEL BALL WITH 1500 PSI. :DISPLACE BALL WITH KCL AT 1.5 BPM. AT 33 BBLS AWAY(70%COIL VOLUME),SLOW RATE TO 0.5 BPM. LAND BALL AT 51 BBLS AWAY(90%COIL VOLUME). PRESSURE UP TO 4500 PSI BEHIND BALL TO SHEAR OFF LINER. 20:00 - 22:30 2.50 CASING P RUNPRD PICKUP TO BREAKOVER WEIGHT AT 38 KLBS +4'TO CONFIRM COIL IS RELEASED FROM LINER. NEW PICKUP WEIGHT IS 10 KLBS LESS THAN WITH LINER. STACK 10 KLBS BACK DOWN ON LINER. • DISPLACE WELL FROM 9.1 PPG POWERPRO MUD TO 8.4 PPG 1%KCL. FINAL CIRCULATION PRESSURE AT 1.5 BPM=600 PSI. 22:30 - 23:00 0.50 CEMT P RUNPRD PJSM WITH SLB CEMENTING CREW AND RIG CREW FOR PUMPING CEMENT. PRESSURE TEST CEMENTING LINES TO 250 PSI LOW AND 6000 PSI HIGH FOR FIVE MIN EACH TO LEAKTIGHT CRITERIA(PASSING TESTS). 23:00 - 00:00 1.00 CEMT P RUNPRD BATCH UP 27.0 BBLS 15.83 CLASS G_ CEMENT. —POMP 5 BBLS BIOZAN AHEAD WITH RIG PUMP THEN SHUT DOWN. SLB PUMP UNIT PUT 27.0 BBLS CEMENT INTO REEL,THEN SHUT DOWN. CLEAN UP LINE GOING BACK TO SLB PUMP UNIT. WET CEMENT SAMPLE SENT BACK TO LAB FOR UCA ANALYSIS. 12/14/2012 00:00 - 02:00 2.00 CEMT P RUNPRD START RIG DISPLACEMENT WITH 120 BBLS BIOZAN. SLOW DOWN PUMP WHEN LEADING EDGE OF CEMENT IS AT THE SELRT. ZERO OUT MM WHEN CEMENT EXITS THE SHOE. Printed 12/26/2012 10:49:44AM • North America -ALASKA- BP • Page 3 of 5 Operation Summary Report Common Well Name:Z-07 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/12/2012 End Date: 12/16/2012 X3-0121J-C:DRILL(1,348,056.45) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time: 5/16/1990 12:00:00AM Rig Release: Rig Contractor NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 02:30 0.50 CEMT P RUNPRD PICK UP 13 FT THEN SET BACK DOWN 10K, NOW 10 FT HIGHER. BRING PUMP ON SLOWLY TO PUSH PEE WEE DART DOWN. PUMP 0.8 BBLS,PEE WEE DART ENGAGED. PICK UP AND SIDE EXHAUST 5 BBLS,THEN SET DOWN. PRESSURE UP AND LAUNCH LWP AT 3500 PSI. PUSH IT TO BOTTOM AT 1.5 BPM,THEN GO TO 0.75 BPM WHEN RETURNS FALL OFF. 02:30 - 02:45 0.25 CEMT P RUNPRD BUMP PLUG AT 18.1 BBLS(18.1 BBLS CALCULATED)HOLD 700 PSI OVER CIRC PRESSURE, HOLDING GOOD. OPEN BAKER CHOKE AND CHECK FLOATS, HOLDING. 02:45 - 03:00 0.25 CEMT P RUNPRD CIRCULATE AT MINIMUM RATE FOR 5 BBLS 03:00 - 05:30 2.50 CEMT P RUNPRD PULL OUT OF HOLE FROM LINER TOP AT 12050'MD TO BHA AT 75'MD,REPLACING VOIDAGE+0.5 BPM. TRIP SHEET IS EVEN FOR TOTAL TRIP. 05:30 - 06:00 0.50 CEMT ' P RUNPRD .UD LINER RUNNING TOOL. -CLEAN RIG FLOOR. RECOVER 5/8"BALL. 06:00 - 07:30 1.50 CEMT P • RUNPRD PREP RIG FLOOR TO RUN 1.25"CSH. 07:30 - 13:30 6.00 EVAL P RUNPRD M/U CLEANOUT/MNL BHA. BHA OAL=3205.14 FT. 13:30 - 16:00 2.50 EVAL P RUNPRD M/U CT RISER_ PRESSURETEST QTS,GOOD. RIH. 16:00 - 19:00 3.00 EVAL P RUNPRD START LOGGING DOWN FROM 11700 FT. GO TO 1.5 BPM WHILE LOGGING INSIDE LINER. 19:00 - 19:45 0.75 EVAL P RUNPRD START LOGGING UP AT 60 FPM FROM 14,781' MD(UNCORRECTED)TO 11,696'MD. 19:45 - 00:00 4.25 EVAL P RUNPRD POOH F/11,696'-3,205'MD. STAND BACK 1-1/4"CSH PIPE F/3,205'-97' MD. REMOVE SOURCE FROM TOOL. LD SLB LOGGING TOOLS. 12/15/2012 00:00 - 01:00 1.00 CASING P RUNPRD PERFORM LINER LAP TEST.LOW-300 HIGH- 3000.TEST GOOD. NOTIFIED WTL OF TEST RESULTS.PERMISSION GIVEN TO CONTINUE WITH WELL PLAN. 01:00 - 03:30 2.50 CASING P RUNPRD HELD PJSM TO UNLOAD LINER OUT OF PIPE SHED&LOAD PERF GUNS INTO PIPE SHED. LAYOUT GUN IN CORRECT ORDER FOR PERF RUN. 03:30 - 04:00 0.50 CASING P RUNPRD PJSM WITH SLB PERFORATING CREW&RIG CREW FOR RUNNING PERFORATING GUN 04:00 - 06:00 2.00 CASING P RUNPRD MU PERFORATING GUN ASSEMBLY F/0'-450' MD. 06:00 - 08:30 2.50 CASING P RUNPRD CONTINUE M/U PERF GUN ASSEMBLY. M/U CT RISER AND PRESSURE TEST QTS CONNECTION,GOOD. 08:30 - 10:10 1.67 CASING P RUNPRD RIH WITH PERF GUNS. Printed 12/26/2012 10:49:44AM North America -ALASKA- BP Page 4 of 5 Operation Summary Report Common Well Name:Z-07 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/12/2012 End Date: 12/16/2012 X3-0121J-C:DRILL(1,348,056.45) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:10 - 10:40 0.50 CASING N WAIT RUNPRD STOP ABOVE LINER TOP UNTIL RIG NABORS 27S HAS TRAVELLED PAST THE PAD ENTRANCE ON THE WAY TO KUPARUK. NO FLUID SUPPORT FROM DEADHORSE UNTIL THIS RIG HAS PASSED. 10:40 - 11:50 1.17 CASING N WAIT RUNPRD RIG 27 HAS PASSED THE PAD ENTRANCE. CONTINUE RIH. 11:50 - 12:10 0.33 CASING P RUNPRD NO FLAG IS SEEN FROM THE MEM LOGGING RUN. TAG PBTD AT 14481 FT CONSISTENT WITH CORRECTIONS WHILE DRILLING DISCUSS WITH ODE AND AGREE TO USE THE CORRECTED PBTD FROM THE MEM LOG FOR PERFORATING DEPTH CONTROL. 12:10 - 13:00 0.83 CASING P RUNPRD GETUP WEIGHT AND CORRECT-7 FT TO CORRECTED PBTD FROM THE MEM LOG. GO THROUGH,PUMP SEQUENCE TO ACTIVATE FIRING HEAD. GOOD SHOT INDICATION FROM ACOUSTICS, FLUID LOSS,AND WEIGHT BOBBLE. PERFORATED INTERVALS: 14,38014,480 14,06014,380 (G� 13,95013,990 13,87013,950 tool 13,77013,820 13,54013,770 13,44013,520 13,28013,410 13:00 - 13:55 0.92 CASING P RUNPRD POOH HOLDING 300 PSI WHP WITH HAND CHOKE. LIMIT SPEED TO 45 FT/MIN WHILE GUNS ARE INSIDE LINER. 13:55 - 14:20 0.42 CASING P RUNPRD STOP AT 11980 FT FOR FLOW CHECK. TRIP SHEET IS-3 BBLS TO THIS POINT. ZERO FLOW FOR 15 MIN. 14:20 - 15:45 1.42 CASING P RUNPRD CONTINUE POOH. 15:45 - 16:00 0.25 CASING P RUNPRD PJSM FOR STANDING BACK CSH. TRIP SHEET IS-9 BBLS TO THIS POINT. 16:00 - 16:30 0.50 CASING P RUNPRD TAG STRIPPER,FLOW CHECK WELL. FLOW CHECK IS GOOD. LIFT OFF INJECTOR AND PUT ON LEGS. — 16:30 - 18:00 1.50 CASING P RUNPRD PULL 2 JTS OF PH6 AND 25 STANDS 1.25 CSH. STOP AT MARKER PUP WITH 10 JTS REMAINING TO REACH GUNS. 18:00 - 18:30 0.50 CASING P RUNPRD HANDOVER WITH CREW. INSPECT TOOLS AND EQUIPMENT. 18:30 - 19:00 0.50 CASING P RUNPRD PJSM WITH SLB PERFORATING CREW TO LAYDOWN PERFORATING GUNS 19:00 - 21:30 2.50 CASING P RUNPRD POOH F/3,187'-0'MD. LAYDOWN 57 PERFORATING GUNS. 21:30 - 22:00 0.50 CASING P RUNPRD RIG DOWN FARR TONGS. CLEANED RIG FLOOR. 22:00 - 23:00 1.00 CASING P RUNPRD MU FREEZE PROTECT NOZZLE. TEST QTS-250 LOW 3500 HIGH. 23:00 - 00:00 1.00 CASING P RUNPRD CONDUCT PJSM WITH LITTLE RED SERVICES TO PUMP FREEZE PROTECT. RU UP LITTLE RED AND TEST LINES. 12/16/2012 00:00 - 01:30 1.50 CONDHL P OTHCMP RIH F/0'-2500'MD. PUMP 45 BBLS DIESEL INTO COIL. Printed 12/26/2012 10:49:44AM • North America -ALASKA- BP • Page 5 of 5 Operation Summary Report Common Well Name:Z-07 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/12/2012 End Date: 12/16/2012 X3-0121J-C:DRILL(1,348,056.45) Project:Prudhoe Bay Site: PB Z Pad Rig Name/No.: NORDIC 2 Spud Date/Time:5/16/1990 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI: Active Datum:Z-07A @88.62ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:30 - 02:30 1.00 CONDHL P OTHCMP POOH LAYING IN DIESEL FOR FREEZE PROTECTION. 02:30 - 04:00 1.50 RIGD P OTHCMP SPOT SLB NITROGEN UNIT. PJSM WITH SLB NITROGEN CREW RIG UP& BLOWING DOWN COIL. 04:00 - 07:00 3.00 RIGD P OTHCMP PRESSURE TEST NITROGEN UNIT LINES, GOOD TEST. PURGE REEL WITH 1500 SCFM N2 FOR 15 MIN. ALLOW IT TO BLEED OFF. 07:00 - 09:00 2.00 RIGD P OTHCMP PJSM AND MONITOR WELL FOR 30 MIN. FLUID LEVEL IS STABLE. SET BPV WITH A T-BAR. 09:00 - 12:00 3.00 RIGD P POST CONTINUE CLEANING PITS. 12:00 - 19:30 7.50 BOPSUR P POST CONDUCT LEAK TIGHT TEST FOR BREAKING CONTAINMENT. OPEN BOP DOORS AND INSPECT RAMS. 19:30 - 20:00 0.50 WHSUR P POST INSTALL TREE CAP WITH NEW RING GASKET - AND PRESSURE TEST AGAINST TOP OF SWAB VALVE(WITH CLOSED SSV AND / MASTER)TO 250 PSI LOW AND 3500 PSI HIGH ✓ :FOR FIVE MIN EACH(PASSING TESTS,SEE ATTACHED CHART). 20:00 21:00 1.00 WHSUR P POST 'GENERAL RIG DOWN OPERATIONS IN PREPARATION FOR RIG MOVE. RELEASE NORDIC 2 CTD RIG AND END COMPLETION EVENT AT 21000N 12/16/2012. -ALL TREE AND WELLHEAD VALVES LEFT CLOSED TO PRESSURE GAUGES. -FINAL IA/OA=0/50 PSI -TREE/WELLHEAD AND CELLAR CLEAN -WELLWORK TRANSFER PERMIT CLOSED OUT WITH PAD OPERATOR. -WELL HANDOVER COMPLETED WITH WELLS GROUP 12.05 DAYS FROM RIG ACCEPT TO RIG RELEASE ORIGINAL PERFORMANCE TARGET=11.47 DAYS ORIGINAL AFE P50 TARGET=14.89 DAYS Printed 12/26/2012 10:49:44AM Z-07B, Well History (Post Rig Sidetrack) Date Summary 12/16/12 T/I/O=0/0/0 Conduct PJSM w/rig personal; Start barrier list; Barriers= Kill weight fluid; Set 4"CIW"H" TWC#END404 w/Hydril T-Bar @ 31.50' (RKB=28.90' + 1.50'); Nordic 2 RDMO. 12/22/12 T/I/O=0/0/0 Conducted PJSM. Barriers=SSV, Swab, & BPV. Start barrier list. Performed PT on top side of SSV 500 psi./5 min. pass. Using SSV&Tested BPV as barriers, removed Comp. side untapped blind and replaced w/tapped blind and jewelry. Opened SSV.With opened bleed at tree cap,TORQUED all flanges to specs. (see log) Shut Swab&SSV. Removed tree cap, attached lubricator, PT'd against top of Swab 250/Iow..3500/high..pass. PULLED 4"CIW"H" BPV#404 thru tree using 1-1'ext.Tagged @ 109" Shut barriers, removed lubricator, 0/0 tools, attached lubricator PT'd 250/Iow..3500/high..5 min. each..pass. Set 4" CIW"H"TWC#260 w/same equip. Shut barriers, 0/0 tools, attached lubricator, run polish rod down to 6"above TWC. Shell Tested tree 250/Iow..5000/high..5 min. each..pass(see TRP folder) PULLED TWC. Installed tree cap, PT'd to 500 psi. pass. 12/31/12 DRIFTED W/2.25"CENT, S. BAILER. DEVIATE OUT. @ 12,855'SLM. NO SAMPLE IN BAILER. RAN SBHPS AS PER PROGRAM (GOOD DATA). 01/01/13 RAN RAN 3.805" G. RING &3-1/2" BLB. UNABLE TO PASS 4-1/2"X-NIP @ 2073'SLM (2102'MD). B&F W/3.77" CENT, 3' 1-1/2"STEM, 3-1/2"BLB DOWN TO BKR DEPLOY SLV @ 12,036'SLM (12,051' MD). LRS PUMPED 10 BBLS METH, 36 BBLS DIESEL, 27 BBLS CRUDE TOTAL DOWN TBG. DRIFTED W/10'x 3.70" DMY WHIPSTOCK, 3.50" LIB TO BKR DEPLOY SLV @ 12,034' SLM (12,051' MD). LIB SHOWS IMPRESSION OF DEPLOYMENT SLV&SMALL METAL SHAVINGS SET 45 KB LNR TOP PKR W/DPU IN BKR DEPLOYMENT SLEEVE @ 12,034' SLM (12,051' MD). TOP OF LTP 12045'MD. SET CAT STANDING VALVE FOR BKR 45 KB LTP @ 12,027' SLM (12,051'MD). LRS PERFORMS PASSING MIT-T TO 3000 psi. 01/02/13 PULL RK-DGLVS FROM STA#3 @ 7191' SLM (7198' MD). & FROM STA#4 @ 3401' SLM (3418' MD). SET RK-LGLV IN STA#4 @ 3401'SLM (3418' MD). SET RK-OGLV IN STA#3 @ 7191' SLM (7198' MD). PULLED CAT STANDING VALVE FROM BKR 45 KB LTP @ 12,027'SLM (12,051'MD). Page 1 of 1 ru BAKER HUGH ES INTEQ North America - ALASKA - BP Prudhoe Bay PB Z Pad Z-07 Z-07B Survey: MWD Survey Report - Geographic 08 January, 2013 Øbp /11/4/ BAKER HUGHES Survey Report-Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 ' Project: Prudhoe Bay TVD Reference: Z-07A @ 88.62ft(Doyon 14) Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) • Well: Z-07 North Reference: True • Wellbore: Z-07B Survey Calculation Method: Minimum Curvature Design: Z-07B Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PBZ Pad,TR-11-12 Site Position: Northing: 5,957,230.17ft Latitude: 70°17'33.051 N From: Map Easting: 601,304.82ft Longitude: 149°10'47.37 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 0.77° Well Z-07 API No. 500292204600 Well Position +N/-S 0.00 ft Northing: 5,959,099.94 ft • Latitude: 70°17 51.740 N +El-W 0.00 ft Easting: 599,010.96 ft Longitude: 149°11'53.50 W Position Uncertainty 0.00 ft Wellhead Elevation: 57.56 ft Ground Level: 54.02 ft" Wellbore Z-07B API No 500292204602 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) 1 BGGM2012 12/1/2012 20 46 80.97 57,616 Design Z-07B Audit Notes: Version: Phase: ACTUAL Tie On Depth: 12.698 00 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 34.60 0 00 0.00 297 69 Survey Program Date: 1/8/2013 From To (ft) (ft) Survey(Wellbore) Tool Name Description 38.81 10,274.70 Z-07 Srvy 1 GCT-MS(Z-07) GCT-MS Schlumberger GCT multishot 10,274.70 10,286.00 Z-07A Srvy 1 Blind(Z-07A) BLIND Blind drilling 10,472.00 12,698.00 Z-07A Srvy 2 MWD(Z-07A) MWD MWD-Standard 12,704.40 14,811.00 MWD(Z-07B) MWD MWD-Standard 1/8/2013 1:24:59PM Page 2 COMPASS 2003.16 Build 73 Nik I BAKER HUGHES Survey Report-Geographic 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Z-07A @ 88.62ft(Doyon 14) Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Well: Z-07 North Reference: True Wellbore: Z-07B Survey Calculation Method: Minimum Curvature Design: Z-07B Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,698.00 57.90 295.70 8,856.51 3,565.88 -7,332.83 5,962,568.59 591,632.44 70°18'26.776 N 149°15'27.35 W TIP 12,704.40 57.81 295.73 8,859.91 3,568.23 -7,337.72 5,962,570.88 591,627.53 70°18'26.799 N 149°15'27.49 W KOP 12,726.74 58.83 293.00 8,871.64 3,576.07 -7,355.03 5,962,578.49 591,610.11 70°18'26.876 N 149°15 28.00 W 12,756.96 65.39 289.57 8,885.78 3,585.74 -7,379.91 5,962,587.83 591,585.11 70°18'26.970 N 149°15'28.72 W 12,787.03 70.62 286.40 8,897.04 3,594.33 -7,406.42 5,962,596.07 591,558.49 70°18'27.055 N 149°15 29.49 W 12,818.70 75.11 283.25 8,906.37 3,602.06 -7,435.67 5,962,603.41 591,529.15 70°18'27.130 N 149°15'30.35 W 12,847.74 80.29 273.62 8,912.57 3,606.19 -7,463.69 5,962,607.17 591,501.07 70°18'27.171 N 149°15'31.17 W 12,876.92 84.58 267.31 8,916.41 3,606.42 -7,492.59 5,962,607.02 591,472.17 70°18'27.173 N 149°15'32.01 W 12,906.89 89.33 261.46 8,918.00 3,603.49 -7,522.36 5,962,603.70 591,442.45 70°18'27.144 N 149°15'32.88 W 12,930.12 89.72 256.68 8,918.20 3,599.08 -7,545.16 5,962,598.99 591,419.71 70°18'27.100 N 149°15'33.54 W 12,960.82 88.65 247.54 8,918.63 3,589.66 -7,574.34 5,962,589.19 591,390.66 70°18'27.007 N 149°15'34.39 W 12,980.64 90.00 241.32 8,918.87 3,581.11 -7,592.21 5,962,580.41 591,372.91 70°18'26.923 N 149°15'34.91 W 13,000.56 91.96 238.86 8,918.53 3,571.18 -7,609.47 5,962,570.25 591,355.78 70°18'26.825 N 149°15'35.42 W 13,030.47 92.79 248.21 8,917.28 3,557.88 -7,636.19 5,962,556.60 591,329.24 70°18'26.694 N 149°15'36.19 W 13,060.53 91.10 256.98 8,916.26 3,548.90 -7,664.83 5,962,547.25 591,300.72 70°18'26.605 N 149°15'37.03 W 13,090.51 91.38 266.03 8,915.61 3,544.48 -7,694.44 5,962,542.43 591,271.17 70°18'26.562 N 149°15'37.89 W 13,120.25 91.44 273.13 8,914.88 3,544.26 -7,724.15 5,962,541.83 591,241.47 70°18'26.559 N 149°15'38.76 W 13,150.55 88.59 276.69 8,914.87 3,546.86 -7,754.34 5,962,544.02 591,211.26 70°18'26.584 N 149°15'39.64 W '13,190.53 89.57 282.17 8,915.51 3,553.40 -7,793.75 5,962,550.04 591,171.76 70°18'26.648 N 149°15'40.79 W 13,220.58 89.02 286.93 8,915.88 3,560.95 -7,822.83 5,962,557.21591,142.59 70°18'26.722 N 149°15'41.64 W 13,250.59 88.80 291.07 8,916.45 3,570.72 -7,851.19 5,962,566.6 591,114.11 70°18'26.818 N 149°15'42.46 W 13,280.58 87.33 294.67 8,917.47 3,582.36 -7,878.81 5,962,577.88 591,086.35 70°18'26.932 N 149°15'43.27 W 13,310.64 88.47 298.19 8,918.57 3,595.73 -7,905.70 5,962,590.89 591,059.28 70°18'27.063 N 149°15'44.06 W 13,340.53 89.45 303.00 8,919.11 3,610.94 -7,931.42 5,962,605.76 591,033.37 70°18'27.213 N 149°15'44.81 W 13,370.69 90.28 307.00 8,919.18 3,628.23 -7,956.12 5,962,622.72 591,008.44 70°18'27.383 N 149°15'45.53 W 13,400.61 90.92 311.64 8,918.87 3,647.18 -7,979.26 5,962,641.37 590,985.06 70°18'27.569 N 149°15'46.20 W 13,430.53 91.07 315.61 8,918.35 3,667.82 -8,000.91 5,962,661.71 590,963.14 70°18'27.771 N 149°15'46.83 W 13,460.39 91.72 319.42 8,917.62 3,689.83 -8,021.06 5,962,683.46 590,942.70 70°18'27.988 N 149°15 47.42 W 13,490.03 91.75 323.26 8,916.72 3,712.96 -8,039.57 5,962,706.34 590,923.89 70°18'28.215 N 149°15 47.96 W 13,520.41 91.17 325.01 8,915.95 3,737.57 -8,057.36 5,962,730.71 590,905.78 70°18'28.457 N 149°15'48.48 W 13,550.63 88.43 322.53 8,916.06 3,761.94 -8,075.22 5,962,754.84 590,887.60 70°18'28.696 N 149°15'49.00 W 13,580.34 87.11 319.67 8,917.21 3,785.05 -8,093.86 5,962,777.69 590,868.66 70°18'28.923 N 149°15 49.55 W 13,610.64 86.86 316.97 8,918.81 3,807.64 -8,113.98 5,962,800.02 590,848.25 70°18'29.145 N 149°15'50.14 W 13,640.45 88.43 314.52 8,920.03 3,828.97 -8,134.76 5,962,821.08 590,827.19 70°18'29.355 N 149°15'50.74 W 13,670.42 88.96 311.78 8,920.71 3,849.46 -8,156.62 5,962,841.27 590,805.06 70°18'29.556 N 149°15'51.38 W 13,700.81 89.42 310.44 8,921.14 3,869.44 -8,179.51 5,962,860.95 590,781.91 70°18'29.752 N 149°15'52.05 W 13,731.21 90.61 308.25 8,921.14 3,888.71 -8,203.02 5,962,879.91 590,758.15 70°18'29.942 N 149°15'52.74 W 13,760.42 91.57 307.53 8,920.58 3,906.65 -8,226.07 5,962,897.53 590,734.87 70°18'30.118 N 149°15'53.41 W 13,790.32 92.30 308.59 8,919.57 3,925.07 -8,249.60 5,962,915.64 590,711.10 70°18'30.299 N 149°15'54.10 W 13,820.28 93.74 312.99 8,917.99 3,944.61 -8,272.24 5,962,934.88 590,688.21 70°18'30.491 N 149°15'54.76 W 13,850.28 93.78 315.56 8,916.02 3,965.51 -8,293.67 5,962,955.49 590,666.50 70°18'30.696 N 149°15'55.38 W 13,880.30 93.94 320.20 8,914.00 3,987.72 -8,313.76 5,962,977.43 590,646.13 70°18'30.914 N 149°15'55.97 W 13,910.28 92.55 323.95 8,912.30 4,011.32 -8,332.15 5,963,000.79 590,627.43 70°18'31.146 N 149°15'56.51 W 13,941.07 92.24 327.51 8,911.02 4,036.74 -8,349.47 5,963,025.98 590,609.78 70°18'31.396 N 149°15'57.01 W 13,970.22 91.07 330.98 8,910.17 4,061.78 -8,364.37 5,963,050.81 590,594.55 70°18'31.642 N 149°15'57.45 W 14,000.01 89.94 329.65 8,909.91 4,087.66 -8,379.12 5,963,076.49 590,579.46 70°18'31.896 N 149°15'57.88 W 14,030.41 89.97 325.73 8,909.94 4,113.34 -8,395.36 5,963,101.96 590,562.88 70°18'32.149 N 149°15'58.35 W 14,060.73 89.26 323.87 8,910.14 4,138.12 -8,412.84 5,963,126.50 590,545.08 70°18'32.392 N 149°15'58.86 W 14,090.23 86.81 321.71 8,911.15 4,161.60 -8,430.67 5,963,149.74 590,526.95 70°18'32.623 N 149°15'59.38 W 14,120.53 87.88 318.57 8,912.56 4,184.83 -8,450.06 5,963,172.71 590,507.25 70°18'32.851 N 149°15'59.95 W 14,150.51 86.63 315.63 8,913.99 4,206.76 -8,470.45 5,963,194.37 590,486.58 70°18'33.067 N 149°16'0.55 W 14,180.44 86.75 312.45 8,915.72 4,227.53 -8,491.92 5,963,214.86 590,464.84 70°18'33.271 N 149°16'1.17 W 14,210.36 87.52 308.78 8,917.22 4,246.98 -8,514.60 5,963,234.00 590,441.91 70°18'33.462 N 149°16'1.83 W 1/8/2013 1:24:59PM Page 3 COMPASS 2003.16 Build 73 /II, BAKER HUGHES Survey Report-Geographic 0 by INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 ex Project: Prudhoe Bay ND Reference: Z-07A @ 88.62ft(Doyon 14) Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Well: Z-07 North Reference: True Wellbore: Z-07B Survey Calculation Method: Minimum Curvature Design: Z-07B Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting ' (ft) (0) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 14,240.51 89.91 307.08 8,917.89 4,265.50 -8,538.37 5,963,252.21 590,417.89 70°18'33.644 N 149°16'2.53 W 14,270.49 91.63 304.75 8,917.49 4,283.09 -8,562.65 5,963,269.47 590,393.39 70°18'33.816 N 149°16'3.24 W 14,300.35 93.01 308.15 8,916.28 4,300.81 -8,586.65 5,963,286.88 590,369.17 70°18'33.990 N 149°16'3.94 W 14,330.23 93.59 312.44 8,914.56 4,320.10 -8,609.39 5,963,305.86 590,346.17 70°18'34.180 N 149°16'4.60 W 14,360.63 93.56 316.62 8,912.66 4,341.37 -8,631.02 5,963,326.84 590,324.27 70°18'34.389 N 149°16'5.23 W 14,390.25 93.66 320.53 8,910.80 4,363.53 -8,650.57 5,963,348.74 590,304.42 70°18'34.607 N 149°16'5.80 W 14,420.47 93.62 324.70 8,908.88 4,387.49 -8,668.88 5,963,372.46 590,285.80 70°18'34.842 N 149°16'6.34 W 14,450.73 89.02 325.90 8,908.18 4,412.35 -8,686.10 5,963,397.09 590,268.26 70°18'35.086 N 149°16'6.84 W 14,480.67 84.31 326.11 8,909.92 4,437.13 -8,702.80 5,963,421.64 590,251.23 70°18'35.330 N 149°16'7.33 W 14,510.13 80.13 325.21 8,913.91 4,461.22 -8,719.26 5,963,445.51 590,234.46 70°18'35.567 N 149°16'7.81 W 14,540.29 76.19 324.56 8,920.10 4,485.36 -8,736.24 5,963,469.43 590,217.17 70°18'35.804 N 149°16'8.31 W 14,570.57 72.00 322.95 8,928.39 4,508.85 -8,753.45 5,963,492.68 590,199.65 70°18'36.035 N 149°16'8.81 W 14,600.87 68.22 321.85 8,938.70 4,531.42 -8,770.83 5,963,515.02 590,181.98 70°18'36.256 N 149°16'9.32 W 14,630.51 63.65 321.78 8,950.78 4,552.69 -8,787.55 5,963,536.06 590,164.97 70°18'36.465 N 149°16'9.81 W 14,660.59 59.44 320.92 8,965.11 4,573.34 -8,804.06 5,963,556.49 590,148.20 70°18'36.668 N 149°16'10.29 W 14,690.76 55.60 319.78 8,981.31 4,592.93 -8,820.30 5,963,575.87 590,131.71 70°18'36.861 N 149°16'10.76 W 14,720.58 51.00 319.62 8,999.13 4,611.16 -8,835.76 5,963,593.89 590,116.01 70°18'37.040 N 149°16'11.21 W 14,759.01 45.68 318.22 9,024.66 4,632.81 -8,854.60 5,963,615.28 590,096.88 70°18'37.253 N 149°16'11.76 W 14,811.00 • 45.68 318.22 9,060.99 . 4,660.54 -8,879.39 5,963,642.69 590,071.74 70°18'37.525 N 149°16'12.49 W 2 718" i 1/8/2013 1:24:59PM Page 4 COMPASS 2003.16 Build 73 05 22Ak\ Letter of Transmittal BAKER Date: i December 20, 2012 HUGHES ________ To: From: State of Alaska AOGCC Baker Hughes INTEQ 333 W. 7th Ave., Suite 100 795 East 94th Avenue Anchorage, Alaska 99501 Anchorage, Alaska 99515 Bill Michaelson Please find enclosed the directional survey data for the following well(s): 18-27EPB1, 18-27EPB2, 18-27E 06-16A D-29A E-20B D-19C P-19L1PB1, P-19L1 P-12BL1 s V, ( N f I LE W-02B Z-07B D f 1� �RVY p LJ G -1\19_1 12, Enclosed for each well(s): 2 hardcopy prints of directional survey reports 1 compact disk containing electronic survey files Please sign and return one copy of this transmittal form to: BP Exploration (Alaska) Inc. Petrotechnical Data Center, LR2-1 - 900 E. Benson Blvd. Anchorage, Alaska 99508 to acknowledge receipt of this data. RECEIVED BY: ill41) , State of Alaska AOGCC DATE: A(9-4I t3 -57 77 6�� II U SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W 7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Z-07B BP Exploration (Alaska), Inc. Permit No: 212-105 Surface Location: 974' FNL, 1287' FWL, SEC. 19, T11N, R12E, UM Bottomhole Location: 3629' FSL, 2295' FEL, SEC. 14, T11 N, R 11 E, UM Dear Mr. McMullen: Enclosed is the approved application for permit to re-drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, it_ I P 72,,e,,14____, Cathy '. Foerster Chair 5 fr DATED this I day of August, 2012. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) RECEIVED STATE OF ALASKA JUL 2 6 2012 ALAS )IL AND GAS CONSERVATION COMM, .ON PERMIT TO DRILL 20 AAC 25.005 AOGCC 1 a.Type of work. lb Proposed Well Class. ®Development Oil• 0 Service-Wini ®Single Zone . 1 c Specify if well is proposed for: ❑Drill ®Redrill 0 Stratigraphic Test ❑Development Gas ❑Service-Supply 0 Multiple Zone 0 Coalbed Gas 0 Gas Hydrates ❑Re-Entry 0 Exploratory 0 Service-WAG ❑Service-Disp ❑Shale Gas 2. Operator Name. 5.Bond: ®Blanket 0 Single Well 11 Well Name and Number BP Exploration (Alaska) Inc. Bond No. 6194193 • PBU Z-07B • 3. Address. 6. Proposed Depth: 12 Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 14811' ' TVD 8957'ss • Prudhoe Bay/Prudhoe Bay . 4a. Location of Well(Governmental Section). 7. Property Designation(Lease Number): Surface: ADL 028262&028245 • 974' FNL, 1287' FWL, Sec. 19,T11N, R12E, UM Top of Productive Horizon. 8 Land Use Permit: 13 Approximate Spud Date: 2610' FSL, 811' FEL, Sec. 14, T11N, R11 E, UM November 25,2012 Total Depth: 9.Acres in Property. 14. Distance to Nearest Property. 3629' FSL, 2295' FEL, Sec. 14,T11N, R11 E, UM 2560 2293' 4b Location of Well(State Base Plane Coordinates-NAD 27): 10. KB Elevation above MSL. 88.62' " feet 15.Distance to Nearest Well Open Surface: x- 599011 • y-5959100 Zone- ASP4 GL Elevation above MSL: 54.02' • feet to Same Pool: 478' 16.Deviated Wells Kickoff Depth. 12735' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 91 degrees Downhole: 3816 . Surface. 2936 • 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 4-1/8" 3-1/4"x 2-7/8" 6.6#/4.7# L-80/13Cr80 TC-II/STL 2764' 12047' 8419'ss 14811' 8957'ss 150 sx 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 TVD(ft): Junk(measured). 13174' 9118' None 13133' 9096' Unknown Casing Length Size Cement Volume MD TVD Conductor/Structural 110' 20" 280 cu ft Arcticset(Approx.) 110' 110' Surface 2740' 13-3/8" 3806 cu ft Permafrost 2740' 2645' Intermediate 10286' 9-5/8" 365 cu ft Class'G' 10286' 9511' Production Liner 3041' 7" 209 cu ft Class'G' 10133'- 13174' 9410'-9118' Perforation Depth MD(ft)• 12766'- 13016' Perforation Depth TVD(ft) 8893'-9031' 20.Attachments: 0 Property Plat ®BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis ®Diverter Sketch 0 Seabed Report ®Drilling Fluid Program 1E120 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative Date: 22 I hereby certify that the, .re••ing is true and correct. Contact David Johnston,564-5985 Printed Name J. // ,ilee' Title Engineering Team Leader 1^\ Phone 564 4711 Date �/2_ Prepared By Name/Number Signature � Joe Lastufka,564-4091 Commission Use Only Permit T. DrillAPI Number. Permit Appv Dte. See cover letter for Number „2,1z.._/D� vaa(50-029-22046-02-00 q0\ \\(1 other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed metha e,gas hydrates,or gas contained shales Id Other: 11( '�cab /p S c. ° /C3^t— Samples Req'd. ❑YEs No Mud Log Req'd. ,❑-✓yes E/No H2S Measures: es 0 No Directional Survey Req'd: Ln Yes 0 No 7 i.....;_rei 01 eriv a. 17, � 6 7 APPROVED BY THE COMMISSION Date 8'4fr I C/ ,COMMISSIONER Form 10-401 Revised 07/2009 Thisermit is valid for 24 monthORJG om t e date f approval pproval(20 AAC 25.005(g)) Submit In Duplicate 74 7- 3(./L 7, �L ,) SIAL A To: Alaska Oil & Gas Conservation Commission From: David E. Johnston 0 lJp CTD Engineer Date: July 25, 2012 Re: Z-07Bi Permit to Drill Request Approval is requested for a permit to drill a CTD sidetrack from well Z-07. CTD Drill and Complete Z-07B program: Rig Start Date: November 25th, 2012 Pre-Rig Work: (scheduled to begin August 1, 2012) 1. F MIT- IA to 3,000 psi, MIT-OA to 2,000 psi 2. W Cycle LDS; PPPOT- T to 5,000 psi 3. S Dummy WS Drift to deviation or 12,750'MD (63° Inc) 4. E Mill XN nipple at 12,056' to 3.80" 5. E Set 4-1/2" x 7" TT Whipstock at -12,735' MD 6. C Cement TT whipstock in place and squeeze perfs 7. F Test cement to 2,400 psi for 30 min MITI/ 8. V PT MV, SV, WV 9. 0 Bleed wellhead, production, flow, and GL lines down to zero and blind flange 10. 0 Remove wellhouse, level pad .�L Rig Work: (scheduled to begin November 25th, 2012) 1 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. _ 2. Mill 3.80" window at 12,735' and 10' of rathole. Swap the well to PowerVis. 3. Drill Build: 4.125" OH, 365' (30 deg/100 planned) 4. Drill Lateral: 4.125" OH, 1,711' (15 deg/100 planned) with resistivity 5. Run 3-1/4" x 2-7/8" liner leaving TOL at 12,047' MD. Y 6. Pump primary cement leaving TOC at 12,535' MD, 31 bbls of 15.8 ppg liner cmt planned 7. Cleanout liner and run MCNL/GR/CCL log. 8. Test liner lap to 3,000 psi. 9. Perforate liner per asset instructions (-800') 10. Freeze protect well, set BPV, RDMO Post-Rig Work: 1. Re-install wellhouse, flowline and pull BPV. 2. Set 4-'/2" liner top packer, and test to 3,000 psi (If liner lap test fails) 3. Generic GLV's 4. Test separator WELLS WITHIN 1/4 MILS OF THIS INJECTION WELL: Casing Well Interval @ Top of TOC Method Used to Determine TOC: Name: Top Ivishak'/. Ivishak mile radius 12,432' 11,524' Z-07 7 Production MD MD Calculated TOC assuming 50% excess Notes Distance from Well at Top of Ivashak— 150' Z 07A 7" Production 12N17D64 1D05 Calculated TOC assuming 30% excess Notes:1 Distance from Well at Top of Ivashak—448' 5 'h" 13,398' 12,838' USIT of 5-'/z" Liner 07-DEC-1989 Z-10 Production MD MD Notes:, Distance from Well at Top of Ivashak—461' 4-'/2" Production 11,790' MD 13,292' MD Calculated TOC assuming 70% excess (ran OH Caliper log) Z-38 Distance from Well at Top of Ivashak—740' Notes: 4-1/2" LTP PT to 3,500 psi on 06/25/98 The 7" Intermediate Casing (shoe depth— 11,574)was cemented with a TOC calculated at 10,642' MD assuming 30% excess. Mud Program: • Well kill: 9.5 ppg brine. • Milling/drilling: 9.0_p_pg PowerVis for milling window and drilling (302 psi over-balance). Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. • All Class I wastes will go to Pad 3 for disposal. Hole size: 4.125" Liner Program: • 3-1/4", 6.6#, L-80, TC-II Solid Liner 12,047' MD — 13,210' MD • 2-7/8", 4.7#, 13CR-80, STL Solid Liner 13,210' MD — 14,811' MD • A minimum of 31 bbls of 15.8 ppg cement will be used for liner cementing. (TOC 12,535' MD) • The primary barrier for this operation: a minimum EMW of 9.0 ppg. • A X-over shall be made up to a safety joint including a TIW valve for all tubulars ran in hole. Well Control: • BOP diagram is attached. • Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3,500 psi. • The annular preventer will be tested to 250 psi and 3,500 psi. Directional • See attached directional plan. Maximum planned hole angle is 91°. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property — 2,293'. • Distance to nearest well within pool —478' (Z-07). Logging • MWD directional, Gamma Ray and Resistivity will be run over all of the open hole section. • Cased hole GR/CCL/MCNL logs will be run. Perforating: • SWS 2", 6 spf, perf guns, 1-1/4" CSH work string, & 2-3/8" PH6 • The primary barrier for this operation: a minimum EMW of 9.0 ppg. • • A X-over shall be made up to a safety joint including a TIW valve for all tubulars ran in hole. Anti-Collision Failures • None Hazards • The maximum recorded H2S level on Z Pad was 40 ppm on well Z-100 on 1/12/2012. Reservoir Pressure • The reservoir pressure on Z-07B is expected to be 3,816 psi at 8,800' TVDSS. (8.34 ppg equivalent). • Maximum expected surface pressure with gas (0.10 psi/ft) to surface is 2,936 psi. • An EMW of 9.0 ppg for this well will provide 302 psi over-balance to the reservoir. David E. Johnston CC: Well File CTD Engineer Joe Lastufka TREE= 4-1/16"CM! WELLHEAD= FMC Z 0 7 A SAI NOTES:***ORIG W ELLBORE(Z-07)NOT ACTUATOR= OTIS SHOWN BELOW MILLOUT WINDOW***4-1/2" KB.ELEV= 88-62' BF.ELEV= 57.56' KOP= 1800' Max Angle= 59 @ 11377 Datum MD= 12762' L 2102' —4-1/2"OTIS SSSV NIP, ID=3.813" Datum TVD= 8800'SS _ GAS LIFT MANDRELS 13-3/8"CSG,68#,L-80,ID=12.415" —I 2739' ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3418 3114 50 MERLA DOME RK 16 11/30/09 3 7198 5491 53 MERLA DOME RK 16 11/30/09 2 9924 7271 49 MERLA DMY RK 0 09/19/93 Minimum ID = 3.725" @12056' 1 10034 7344 49 MERLA SO RK 22 11/30/09 4-1/2" PARKER SWN NIPPLE 10133' —I BAKER TIEBACK SLV, ID=7.50" 10141' —19-5/8"X 7"BKR LTW w/HGR, ID=6.187 I PERFORATION SUMMARY 9-5/8"MILLOUT WINDOW(Z-07A) 10286'- 10336' REF LOG: GR/CCL ON 09/26/93 ANGLE AT TOP PERF:57°@ 12766' 'l Note:Refer to Production DB for historical perf data �•A SIZE SPF INTERVAL Opn/Sqz DATE V4 2-7/8" 6 12766-12786 0 10/26/09 3-3/8" 6 12766-12806' 0 10/14/93 •�♦�•‘ 2-7/8" 6 12805- 12825 0 10/26/09 •••�•�•• • 2-7/8" 6 12830- 12850 0 10/10/09 ►•••• ••�•�•�•4 3-3/8" 6 12830- 12852' 0 10/19/94 •�•�•�•••` 3-3/8" 6 12856- 12866' 0 04/04/95 •j•••••••• 2-7/8" 6 12860-12870 0 10/10/09 3-3/8" 6 12866-12884' 0 04/01/95 ••�•�•�•�•�••` 2-7/8" 6 12874-12884 0 10/10/09 ••�•�•�•�•�•�•‘ 11951' —4-1/2"PKR SWS NIP, ID=3.813 2-7/8" 6 12890-12904 0 10/10/09 •�•�•�•�•�•�•�••, 3-3/8" 4 12904- 12924' 0 09/27/93 ••••••••••••••••�• 12009' 7"X 4-1/2"BKR S-3 PKR, ID=3.875" 3-3/8" 4 12930- 12950' 0 09/27/93 ••••••••••••• 3-3/8" 4 12980- 13000' 0 10/08/93 O•�•�•••••••••�•�. � 12039' 4-1/2"PKR SWS NIP, ID=3.813" I 3-3/8" 4 13004- 13016' 0 10/08/93 •�•�•�•�•�•�•�•�• 9-5/8"CSG,47#,L-80,ID=8.681" 12189' �•�•�•�•�•�•�•�•� II 12056' 14-112"PKR SWN NIP, ID=3.725" 12069' —I4-1/2"WLEG, ID=3.958" 4-1/2"TBG, 12.6#13 CR-NSCT, .0152 bpf,ID=3.958" — 12067' IL 12078' --I ELMD , 1111 ?? FISH-UNDERREAM 1111 BLADE(6/05/94) ,, PBTD —I 13133' ,��;�4,�,1 1444444.1,► 7"LNR,29#,L-80 NSCC,.0371 BPF,ID=6.184" —{ 13174' 1►1► DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 06/13/90 SJA ORIGINAL COMPLETION 10/15/09 PJC DRAWING CORRECTIONS WELL: Z-07A 09/20/93 RIG SIDETRACK(Z-07A) 10/27/09 MV/SV RE/ADPERF PERMIT No: 1931100 06/28/04 PWE/KAK GLV C/O 12/10/09 CJN/SV GLV C/O(11/30/09) API No: 50-029-22046-01 06/19/05 DRS/PJC CORRECTION KB SEC 19,T11 N,R12E,4306'FSL&3667'FEL 08/09/06 BSE/PJC GLV C/O 10/14/09 MV/PJC ADPERFS(10/10/09) BP Exploration (Alaska) I ELt= 4-1/16"CNV WZ 0 7 B ELLHEAD= FMC SAL_ NOTES:""" ORIG WELLBORE(Z-07)NOT ACTUATOR= OTIS SHOWN BELOW MILLOUT WINDOW""4-1/2" KB.B_Ev= 8a-62 Proposed CTD Sidetrack BF.13EV= 57.56' KOP= 1800' Max Angle= 59 @ 11377' Datum MD= 12762' O -- 2102' H4-1/2"OTIS SSSV NP,D=3.813" Datum TVD= 8800'SS GAS LFT MANDRB.S 13-3/8"CSG,68#,L-80,D=12.415" H 2739' ST MD ND DEV TYPE VLV LATCH PORT DATE 4 3418 3114 50 NEFLA DOE RK 16 11/30/09 It3 7198 5491 53 IvERtA DOME RK 16 11/30/09 Minimum ID = 3.725 @12056 2 9924 7271 49 A DMY RK 0 09/19/93 1 10034 7344 49 MERLA SO RK 22 11/30/09jI 4-1/2" PARKER SWN NIPPLE 10133' —I BAKER TACK SLV,ID=7.50" 10141' H 9-5/8"X 7"BKR LTW w/HGR D=6.187 I I 1 PERFORATION SUMMARY REF LOG: GR/CCL ON 09/26/93 9-5/8"NLLOUT WINDOW(Z-07A) 10286'- 10336' ANGLE AT TOP Ft3RF:57"@ 12766' Note:Refer to Production DB for historical perf data S SIZE SPF INTERVAL Opn/Sgz DATE �•A 2-7/8" 6 12766- 12786 0 10/26/09 0••4 3-3/8" 6 12766- 12806' 0 10/14/93 ••••� •••A 2-7/8" 6 12805- 12825 O 10/26/09 �••• 2-7/8" 6 12830- 12850 O 10/10/09 ►•••••. •�•�•�4 ► • 13-3/8" 6 12830- 12852' 0 10/19/94 ••�•�•�•• 3-3/8" 6 12856- 12866' 0 04/04/95 •••••••••A 2-7/8" 6 12860- 12870 0 10/10/09 *�•�•�•�••• 3-3/8" 6 12866- 12884' 0 04/01/95 •�•�•�•�•�••, 2-7/8" 6 12874- 12884 O 10/10/09 •••••••••• 2-7/8" 6 12890- 12904 0 10/10/09 *•�•�•�•�•�•�•�A 11951' -{4-1/2'PKRSWS NF,D=3.813 '' ►••••••♦ 3-3/8" 4 12904- 12924' 0 09/27/93 ►•�•�•�•�•�•�•�4. 13-3/8" 4 12930- 12950' 0 09/27/93 • .•�•�•�t•�•�•�•�•4" 12009' --17"X 4-1/2"BKR S-3 RKR,ID=3.875" I 13-3/8" 4 12980 - 13000' 0 10/08/93 ►••••••••••••••• 3-3/8" 4 13004- 13016' O 10/08/93 0•�•••••••••••�• . 12039' �4 1/2"PKR SVVS NP,13=3-813" ►••••••♦ *••••••••••••••• :1 12056' —4-1/2"PKR SWN NP, I ►••••••♦ ♦••••••♦ ailedprerg ID---3.8C 9-5/8"CSG,47#,L-80,ID=8.681" 12189' •-•.•.•-•-•_•_•_•_ 12069' 4-1/2"VVLEG,D=3.958' 1—� 1 3.7" deployment sleeve 12,047' MDQ 12078' —{ELMD 4-112'TBG, 12.6#13 CR-NSCT,.0152 bpf,D=3.958' —I 12067' TSGR 12,442' MD TOC 12,535' MD • 12735' _ WS TO ALLOW KOP AT INC @ 12,750 -37deg 212,735'MD • 3-3/16" x 2-7/8"xo (9C R) @ 13,210' MD , TD - 14,811' MD • ,, iii ilk 2-7/8"4.7# 13C R-80 mer PBTD 13133' 404 ,eg''',__ ?? ^'—FISH UND AM 7"LNR,29#,L-80 USCG,.0371 BFf,13=6.184" I 13174' ��► __ � BLADE(6/05/94) DATE REV BY CONVENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 106/13190 SJA ORIGINAL COMPLETION 10/15/09 PJC DRAWING CORRECTIONS VVELL• Z-07A 09/20/93 IVIG SIDETRACK(Z-07A) 10/27/09 MV/SV RE/ADRRF PERMT No: 06/28/04 WVE/KAK GLV CIO 12/10/09 CJWSV GLV C/O(11/30/09) AR No: 50-029-22046-02 106/19/05 DRS/PJC CORRECTION KB SEC 19,T11N,R12E,4306'FSL&3667'FI-1 08/09/06 BSE/PJC GLV C/O `10/14/09 MV/PJC ADFERFS(10/10/09) BP Exploration(Alaska) s #i • o J -111111 r Y • s = IP lb lin .• a . . 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JbP Hill BHI BAKER HUGHES Travelling Cylinder Report 0 by INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Reference Plan 6 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of referE Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 12,698.00 to 14,811.20ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,677.66ft Error Surface: Elliptical Conic Survey Tool Program Date 2/15/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 38.81 10,274.70 Z-07 Srvy 1 GCT-MS(Z-07) GCT-MS Schlumberger GCT multishot 10,274.70 10,286.00 Z-07A Srvy 1 Blind(Z-07A) BLIND Blind drilling 10,472.00 12,698.00 Z-07A Srvy 2 MWD(Z-07A) MWD MWD-Standard 12,698.00 14,811.20 Plan 6(Z-07B) MWD MWD-Standard Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 2,736.81 2,553.74 13 3/8" 13.375 17.500 10,286.00 7,422.25 9 5/8" 9.625 12.250 14,811.20 8,956.82 2 7/8" 2.875 4.125 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 Z-07-Z-07-Z-07 12,715.00 12,750.00 463.56 115.68 365.57 Pass-Major Risk Z-07-Z-07A-Z-07A 12,725.00 12,725.00 0.09 1.78 -1.09 FAIL-Major Risk Z-10-Z-10-Z-10 14,594.74 13,550.00 562.45 469.01 114.67 Pass-Major Risk Z-10-Z-10A WPS-Plan#4 Z-10A 14,803.63 14,275.00 711.00 507.39 242.58 Pass-Major Risk Z-38-Z-38-Z-38 13,375.00 14,025.00 842.40 629.65 240.48 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 2 of 12 COMPASS 2003.16 Build 73 rilk0 BHI BAKER HUGHES Travelling Cylinder Report 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM .16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-07-Z-07-Z-07 Offset Site Error: 0 00ft Survey Program: 42-GCT-MS Rule Assigned:Major Risk Offset Well Error: 0.00ft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-5 +E/-W Hole Size Centre Distance Deviation (ft) (ft) (ft) (ft) (ft) (ft) (1 (ft) (ft) (ft) (rt) (ft) (ft) 12,715.00 8,776,95 12,750.00 8,975.94 10.73 16.69 56.18 3,878.05 -7,059.96 0.46 463.56 115.68 365.57 Pass-Major Risk,CC,ES,S 12,730.70 8,785,21 12,775.00 8,992.56 10.79 16.84 56.04 3,889.20 -7,074.95 0.46 469.01 116.32 370.53 Pass-Major Risk 12,740.00 8,789.93 12,800.00 9,009.19 10.83 16.99 55.78 3,900.32 -7,089.93 0.46 475.05 116.68 376.30 Pass-Major Risk 12,750.00 8,794.65 12,825.00 9,025.85 10.87 17.14 55.24 3,911.42 -7,104.91 0.46 481.94 116.82 383.14 Pass-Major Risk 12,755.09 8,796.90 12,850.00 9,042.56 10.90 17.29 55.17 3,922.47 -7,119.86 0.46 489.63 117.09 390.80 Pass-Major Risk 12,760.00 8,798.96 12,875.00 9,059.31 10.92 17.44 55.14 3,933.51 -7,134.78 0.46 498.16 117.36 399.35 Pass-Major Risk 12,770.00 8,802.86 12,900.00 9,076.07 10.96 17.60 54.67 3,944.54 -7,149.70 0.46 507.45 117.44 408.93 Pass-Major Risk 12,775.60 8,804.85 12,925.00 9,092.86 10.99 17.76 54.61 3,955.55 -7,164.59 0.46 517.51 117.66 419.20 Pass-Major Risk 12,781.99 8,806.95 12,950.00 9,109.72 11.02 17.91 54.50 3,966.51 -7,179.45 0.46 528.31 117.84 430.34 Pass-Major Risk 12,787.97 8,808.77 12,975.00 9,126.55 11.05 18.01 54.12 3,977.49 -7,194.32 0.46 539.78 117.62 442.37 Pass-Major Risk 12,790.00 8,809.36 13,000.00 9,143.38 11.06 18.10 54.20 3,988.46 -7,209.20 0.46 551.97 117.62 454.85 Pass-Major Risk 12,800.00 8,812.16 13,025.00 9,160.21 11.10 18.20 52.63 3,999.43 -7,224.07 0.46 564.71 116.50 468.70 Pass-Major Risk 12,804.37 8,813.31 13,050.00 9,177.04 11.13 18.29 52.15 4,010.40 -7,238.95 0.46 578.09 116.09 482.68 Pass-Major Risk 12,810.00 8,814.73 13,075.00 9,193.88 11.15 18.38 51.37 4,021.37 -7,253.83 0.46 592.05 115.44 497.44 Pass-Major Risk 12,814.44 8,815.79 13,100.00 9,210.71 11.17 18.47 50.79 4,032.34 -7,268.70 0.46 606.55 114.93 512.62 Pass-Major Risk 12,820.00 8,817.06 13,125.00 9,227.54 11.20 18.56 49.95 4,043.32 -7,283.58 0.46 621.56 114.18 528.53 Pass-Major Risk 12,820.00 8,817.06 13,143.00 9,239.66 11.20 18.63 50.16 4,051.22 -7,294.29 0.46 632.69 114.35 539.69 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 3 of 12 COMPASS 2003.16 Build 73 TPI BHI BAKER HUGHES Travelling Cylinder Report 0 by INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-07-Z-07A-Z-07A Offset Site Error: 0.00ft Survey Program: 39-GCT-MS,10275-BLIND,10472-MWD Rule Assigned:Major Risk Offset Well Error: O.00ft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +EI-W Hole Size Centre Distance Deviation (ft) (ft) (ft) (ff) (ff) (ff) (1 (ft) (C) (ft) (ft) (ft) (ft) 12,700.00 8,768.95 12,700.00 8,768.95 0.01 0.02 -30.55 3,566.61 -7,334.36 0.46 0.00 0.60 -0.53 FAIL-Major Risk,CC 12,725.00 8,782.24 12,725.00 8,782.31 0.11 0.22 86.87 3,575.80 -7,353.39 0.46 0.09 1.78 -1.09 FAIL-Major Risk,ES,SF 12,749.88 8,794.60 12,750.00 8,795.81 0.21 0.42 85.28 3,584.98 -7,372.32 0.46 1.52 2.95 -0.33 FAIL-Major Risk 12,773.99 8,804.29 12,775.00 8,809.41 0.32 0.62 82.42 3,594.17 -7,391.18 0.46 6.09 4.14 3.55 Pass-Major Risk 12,796.82 8,811.29 12,800.00 8,823.05 0.43 0.83 77.57 3,603.39 -7,409.99 0.46 13.61 5.28 10.37 Pass-Major Risk 12,818.09 8,816.63 12,825.00 8,836.71 0.53 1.03 69.22 3,612.65 -7,428.77 0.46 23.45 6.33 19.38 Pass-Major Risk 12,83742 8,820.54 12,850.00 8,850.38 0.63 1.24 61.40 3,621.95 -7,447.52 0.46 35.44 7.28 30.56 Pass-Major Risk 12,854.70 8,823.25 12,875.00 8,864.08 0.72 1.44 54.61 3,631.29 -7,466.23 0.46 49.35 8.12 43.77 Pass-Major Risk 12,870.00 8,824.99 12,900.00 8,877.81 0.79 1.65 48.77 3,640.67 -7,484.90 0.46 64.95 8.86 58.76 Pass-Major Risk 12,883.44 8,826.02 12,925.00 8,891.57 0.86 1.86 43.76 3,650.10 -7,503.52 0.46 81.96 9.51 75.27 Pass-Major Risk 12,895.23 8,826.52 12,950.00 8,905.35 0.92 2.08 39.42 3,659.57 -7,522.11 0.46 100.15 10.08 93.06 Pass-Major Risk 12,906.21 8,826.69 12,975.00 8,919.16 0.98 2.29 35.25 3,669.05 -7,540.66 0.46 119.29 10.56 111.81 Pass-Major Risk 12,916.74 8,826.81 13,000.00 8,932.99 1.03 2.50 31.04 3,678.53 -7,559.21 0.46 139.08 10.94 131.22 Pass-Major Risk 12,92620 8,826.92 13,025.00 8,946.84 1.08 2.71 27.21 3,688.00 -7,577.74 0.46 159.42 11.26 151.23 Pass-Major Risk 12,934.71 8,827.02 13,050.00 8,960.71 1.12 2.93 23.75 3,697.46 -7,596.27 0.46 180.25 11.51 171.78 Pass-Major Risk 12,942.38 8,827.10 13,075.00 8,974.61 1.16 3.10 20.63 3,706.89 -7,614.78 0.46 201.50 11.75 192.14 Pass-Major Risk 12,950.00 8,827.19 13,100.00 8,988.52 1.20 3.21 17.60 3,716.32 -7,633.30 0.46 223.12 14.39 210.60 Pass-Major Risk 12,955.59 8,827.25 13,125.00 9,002.43 1.22 3.32 15.24 3,725.74 -7,651.81 0.46 245.06 17.33 229.30 Pass-Major Risk 12,960.00 8,827.30 13,150.00 9,016.33 1.24 3.43 13.29 3,735.16 -7,670.33 0.46 267.28 20.42 248.24 Pass-Major Risk 12,966.28 8,827.37 13,174.00 9,029.68 1.27 3.53 10.86 3,744.20 -7,688.10 0.46 288.85 23.36 266.67 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 4 of 12 COMPASS 2003.16 Build 73 Hill BHI BAKER HUGHES Travelling Cylinder Report INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: O.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM .16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-10-Z-10-Z-10 Offset Site Error: 0 OOft Survey Program: 100-GCT-MS Rule Assigned:Major Risk Offset Well Error: 0.00 ft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +E/-W Hole Size Centre Distance Deviation (ft) (It) (ft) (ff) (ft) IM (1 (ft) (ft) (ft) (ft) (ft) (ft) 12,824.67 8,818.07 12,200.00 7,985.46 56.00 64.69 -50.19 4,189.30 -7,559.71 0.29 1,025.22 379.57 745.07 Pass-Major Risk 12,837.39 8,820.54 12,225.00 7,999.93 56.06 64.89 -52.08 4,201.77 -7,575.85 0.29 1,022.64 372.47 739.90 Pass-Major Risk 12,850.00 8,822.59 12,250.00 8,014.39 56.12 65.08 -53.93 4,214.31 -7,591.92 0.29 1,020.49 364.59 735.14 Pass-Major Risk 12,860.00 8,823.92 12,275.00 8,028.84 56.16 65.27 -55.20 4,226.95 -7,607.94 0.29 1,018.81 358.70 730.83 Pass-Major Risk 12,870.00 8,824.99 12,300.00 8,043.28 56.21 65.46 -56.47 4,239.66 -7,623.90 0.29 1,017.63 352.80 727.10 Pass-Major Risk 12,876.43 8,825.54 12,325.00 8,057.68 56.24 65.66 -56.89 4,252.46 -7,639.83 0.29 1,017.00 349.01 723.84 Pass-Major Risk 12,883.81 8,826.04 12,350.00 8,072.02 56.27 65.86 -57.54 4,265.34 -7,655.75 0.29 1,016.98 344.42 721.38 Pass-Major Risk 13,700.00 8,824.05 12,375.00 8,086.30 60.92 66.05 -3.19 4,278.31 -7,671.66 0.29 1,009.12 415.66 712.90 Pass-Major Risk 13,700.00 8,824.05 12,400.00 8,100.51 60.92 66.25 -2.68 4,291.35 -7,687.56 0.29 997.14 416.25 698.69 Pass-Major Risk 13,700.00 8,824.05 12,425.00 8,114.68 60.92 66.45 -2.16 4,304.44 -7,703.46 0.29 985.69 416.85 684.99 Pass-Major Risk 13,714.62 8,823.72 12,450.00 8,128.85 61.03 66.64 -3.84 4,317.54 -7,719.36 0.29 974.45 421.04 667.18 Pass-Major Risk 13,725.00 8,823.49 12,475.00 8,143.01 61.11 66.84 -4.85 4,330.64 -7,735.26 0.29 963.68 423.90 651.13 Pass-Major Risk 13,725.00 8,823.49 12,500.00 8,157.17 61.11 67.03 -4.24 4,343.74 -7,751.17 0.29 953.28 424.49 638.12 Pass-Major Risk 13,975.00 8,818.41 12,525.00 8,171.34 62.97 67.21 16.01 4,356.83 -7,767.06 0.29 938.19 391.85 661.02 Pass-Major Risk 13,986.61 8,818.20 12,550.00 8,185.56 63.05 67.38 14.60 4,369.90 -7,782.94 0.29 923.30 397.31 639.35 Pass-Major Risk 14,000.00 8,817.95 12,575.00 8,199.81 63.14 67.55 12.95 4,382.96 -7,798.79 0.29 908.77 403.24 617.37 Pass-Major Risk 14,000.00 8,817.95 12,600.00 8,214.11 63.14 67.73 13.39 4,395.99 -7,814.63 0.29 894.41 403.74 601.21 Pass-Major Risk 14,000.00 8,817.95 12,625.00 8,228.44 63.14 67.89 13.84 4,409.01 -7,830.45 0.29 880.51 404.19 585.48 Pass-Major Risk 14,015.02 8,817.67 12,650.00 8,242.80 63.26 68.04 12.05 4,422.02 -7,846.24 0.29 866.74 410.85 563.40 Pass-Major Risk 14,025.00 8,817.49 12,675.00 8,257.20 63.33 68.20 11.05 4,435.03 -7,862.00 0.29 853.42 415.28 543.94 Pass-Major Risk 14,025.00 8,817.49 12,700.00 8,271.63 63.33 68.36 11.61 4,448.03 -7,877.74 0.29 840.46 415.75 528.75 Pass-Major Risk 14,036.99 8,817.27 12,725.00 8,286.12 63.43 68.53 10.38 4,461.02 -7,893.43 0.29 827.80 420.73 509.02 Pass-Major Risk 14,050.00 8,817,04 12,750.00 8,300.70 63.53 68.69 9.04 4,474.01 -7,909.05 0.29 815.61 425.74 489.45 Pass-Major Risk 14,050.00 8,817.04 12,775.00 8,315.38 63.53 68.86 9.73 4,486.98 -7,924.58 0.29 803.71 426.23 474.84 Pass-Major Risk 14,059.29 8,816.87 12,800.00 8,330.14 63.61 69.02 9.05 4,499.94 -7,940.04 0.29 792.26 429.73 457.23 Pass-Major Risk 14,066.75 8,816.74 12,825.00 8,345.01 63.67 69.18 8.69 4,512.88 -7,955.42 0.29 781.23 432.50 440.65 Pass-Major Risk 14,075.00 8,816.59 12,850.00 8,360.00 63.74 69.35 8.26 4,525.79 -7,970.70 0.29 770.63 435.35 424.19 Pass-Major Risk 14,075.00 8,816.59 12,875.00 8,375.11 63.74 69.51 9.13 4,538.67 -7,985.89 0.29 760.56 436.06 410.87 Pass-Major Risk 14,325.00 8,812.52 12,900.00 8,390.33 65.74 69.67 29.85 4,551.53 -8,000.99 0.29 750.20 395.70 446.06 Pass-Major Risk 14,325.00 8,812.52 12,925.00 8,405.68 65.74 69.84 30.51 4,564.38 -8,015.97 0.29 735.13 396.15 428.68 Pass-Major Risk 14,338.14 8,812.33 12,950.00 8,421.17 65.83 70.00 29.24 4,577.23 -8,030.80 0.29 720.34 403.13 404.12 Pass-Major Risk 14,350.00 8,812.15 12,975.00 8,436.79 65.92 70.16 28.22 4,590.08 -8,045.49 0.29 706.10 409.90 380.88 Pass-Major Risk 14,350.00 8,812.15 13,000.00 8,452.55 65.92 70.32 29.06 4,602.94 -8,060.03 0.29 692.25 410.36 364.15 Pass-Major Risk 14,359.37 8,812.01 13,025.00 8,468.44 66.00 70.49 28.55 4,615.81 -8,074.41 0.29 678.93 415.30 342.90 Pass-Major Risk 14,366.56 8,811.91 13,050.00 8,484.46 66.05 70.65 28.43 4,628.69 -8,088.64 0.29 666.14 419.11 323.24 Pass-Major Risk 14,375.00 8,811.79 13,075.00 8,500.61 66.12 70.82 28.18 4,641.58 -8,102.72 0.29 653.92 423.38 303.44 Pass-Major Risk 14,375.00 8,811.79 13,100.00 8,516.89 66.12 70.98 29.29 4,654.47 -8,116.64 0.29 642.35 423.86 288.37 Pass-Major Risk 14,388.42 8,811.59 13,125.00 8,533.23 66.23 71.15 28.43 4,667.41 -8,130.44 0.29 631.30 430.13 267.19 Pass-Major Risk 14,400.00 8,811.42 13,150.00 8,549.56 66.33 71.33 27.90 4,680.45 -8,144.17 0.29 621.05 435.33 247.89 Pass-Major Risk 14,400.00 8,811.42 13,175.00 8,565.88 66.33 71.50 29.19 4,693.57 -8,157.81 0.29 611.50 435.86 234.51 Pass-Major Risk 14,410.81 8,811.27 13,200.00 8,582.20 66.42 71.68 28.89 4,706.79 -8,171.38 0.29 602.70 440.51 217.14 Pass-Major Risk 14,425.00 8,811.07 13,225.00 8,598.53 66.55 71.86 28.14 4,720.08 -8,184.86 0.29 594.81 446.08 199.55 Pass-Major Risk 14,425.00 8,811.07 13,250.00 8,614.91 66.55 72.04 29.60 4,733.42 -8,198.22 0.29 587.55 446.64 188.43 Pass-Major Risk 14,433.52 8,810.95 13,275.00 8,631.34 66.62 72.21 29.83 4,746.82 -8,211.47 0.29 581.23 449.99 175.03 Pass-Major Risk 14,441.11 8,810.84 13,300.00 8,647.81 66.69 72.39 30.24 4,760.28 -8,224.60 0.29 575.78 452.91 163.10 Pass-Major Risk 14,450.00 8,810.72 13,325.00 8,664.32 66.77 72.57 30.50 4,773.79 -8,237.64 0.29 571.23 456.04 151.93 Pass-Major Risk 14,456.24 8,810.63 13,350.00 8,680.87 66.83 72.74 31.20 4,787.34 -8,250.58 0.29 567.57 458.29 142.88 Pass-Major Risk 14,467.14 8,810.55 13,375.00 8,697.46 66.94 72.91 32.30 4,800.93 -8,263.44 0.29 564.81 460.02 135.20 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 5 of 12 COMPASS 2003.16 Build 73 EMI BHI BAKER HUGHES Travelling Cylinder Report 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-10-Z-10-Z-10 Offset Site Error: 0.000 Survey Program: 100-GCT-MS Rule Assigned:Major Risk Offset Well Error: 0 00f Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +E/-W Hole Size Centre Distance Deviation (ft) (C) (ft) (ft) (ft) (ft) (') (ft) (ft) (ft) (ft) (ft) (ft) 14,482.09 8,810.92 13,400.00 8,714.07 67.08 73.09 33.94 4,814.56 -8,276.21 0.29 562.76 461.03 129.25 Pass-Major Risk 14,500.00 8,812.13 13,425.00 8,730.68 67.25 73.27 35.50 4,828.26 -8,288.92 0.29 561.39 462.19 124.31 Pass-Major Risk 14,515.13 8,813.80 13,450.00 8,747.20 67.39 73.45 36.97 4,842.07 -8,301.62 0.29 560.62 463.28 120.72 Pass-Major Risk 14,533.34 8,816.61 13,475.00 8,763.66 67.57 73.62 38.35 4,855.97 -8,314.31 0.29 560.40 464.55 118.00 Pass-Major Risk,CC 14,552.69 8,820.52 13,500.00 8,780.04 67.75 73.80 39.60 4,869.97 -8,326.98 0.29 560.68 465.91 116.17 Pass-Major Risk 14,573.17 8,825.70 13,525.00 8,796.35 67.94 73.99 40.73 4,884.08 -8,339.63 0.29 561.38 467.41 115.09 Pass-Major Risk 14,594.74 8,832.30 13,550.00 8,812.57 68.14 74.18 41.72 4,898.31 -8,352.25 0.29 562.45 469.01 114.67 Pass-Major Risk,ES,SF 14,617.31 8,840.43 13,575.00 8,828.70 68.35 74.36 42.56 4,912.66 -8,364.86 0.29 563.81 470.72 114.76 Pass-Major Risk 14,640.77 8,850.19 13,600.00 8,844.75 68.56 74.55 43.24 4,927.12 -8,377.44 0.29 565.41 472.53 115.24 Pass-Major Risk 14,664.97 8,861.60 13,625.00 8,860.72 68.76 74.74 43.75 4,941.68 -8,390.00 0.29 567.18 474.43 115.97 Pass-Major Risk 14,689.72 8,874.65 13,650.00 8,876.61 68.97 74.93 44.09 4,956.34 -8,402.57 0.29 569.04 476.39 116.81 Pass-Major Risk 14,714.81 8,889.24 13,675.00 8,892.41 69.17 75.12 44.26 4,971.08 -8,415.13 0.29 570.98 478.38 117.69 Pass-Major Risk 14,739.99 8,905.20 13,700.00 8,908.13 69.35 75.31 44.24 4,985.92 -8,427.70 0.29 572.97 480.36 118.53 Pass-Major Risk 14,765.04 8,922.31 13,725.00 8,923.79 69.53 75.48 44.08 5,000.80 -8,440.28 0.29 574.98 482.26 119.28 Pass-Major Risk 14,789.75 8,940.33 13,750.00 8,939.42 69.69 75.66 43.72 5,015.68 -8,452.90 0.29 576.96 484.07 119.86 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 6 of 12 COMPASS 2003.16 Build 73 NMI BHI BAKER HUGHES Travelling Cylinder Report INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: O.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: O.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM .16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-10-Z-1 OA WPS-Plan#4 Z-1 OA Offset Site Error: 0.00ft Survey Program: 96-GCT-MS,9597-GCT-MS,9600-INC+TREND,9850-MWD,9850-MWDIFR+MS Rule Assigned:Major Risk Offset Well Error: O.00ft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +FJ-W Hole Size Centre Distance Deviation (ft) (ft) (ft) (ft) (ft) (ft) (1 (ft) (1t) (ft) (ft) (ft) (ft) 12,715.00 8,776.95 12,425.00 8,502.87 55.51 81.26 3.76 4,371.13 -7,153.33 0.46 866.35 449.89 460.30 Pass-Major Risk 12,735.00 8,787.42 12,450.00 8,522.04 55.59 81.28 3.93 4,382.97 -7,164.14 0.46 868.91 449.35 461.13 Pass-Major Risk 12,747.10 8,793.32 12,475.00 8,541.22 55.64 81.30 3.62 4,394.82 -7,174.96 0.46 871.76 447.68 462.56 Pass-Major Risk 12,760.00 8,798.96 12,500.00 8,560.40 55.70 81.32 329 4,406.66 -7,185.78 0.46 875.01 445.40 464.52 Pass-Major Risk 12,770.00 8,802.86 12,525.00 8,579.59 55.74 81.33 3.25 4,418.20 -7,196.88 0.46 878.34 443.20 466.58 Pass-Major Risk 12,780.00 8,806.32 12,550.00 8,598.85 55.79 81.34 3.21 4,428.77 -7,208.80 0.46 881.00 440.84 468.21 Pass-Major Risk 12,787.27 8,808.56 12,575.00 8,618.14 55.82 81.35 3.23 4,438.31 -7,221.53 0.46 882.99 438.56 469.77 Pass-Major Risk 12,790.00 8,809.36 12,600.00 8,637.42 55.83 81.37 3.64 4,447.29 -7,234.67 0.46 884.97 437.18 471.21 Pass-Major Risk 12,795.84 8,811.02 12,625.00 8,656.65 55.86 81.39 3.44 4,456.31 -7,247.84 0.46 887.57 433.98 474.78 Pass-Major Risk 12,800.00 8,812.16 12,650.00 8,675.24 55.88 81.41 3.53 4,465.86 -7,261.57 0.46 891.31 431.57 479.13 Pass-Major Risk 12,804.30 8,813.29 12,675.00 8,692.93 55.90 81.43 3.53 4,476.07 -7,275.97 0.46 896.29 428.94 485.15 Pass-Major Risk 12,810.00 8,814.73 12,700.00 8,709.68 55.93 81.45 3.18 4,486.93 -7,291.02 0.46 902.49 425.24 493.52 Pass-Major Risk 12,810.00 8,814.73 12,725.00 8,725.44 55.93 81.48 3.93 4,498.40 -7,306.67 0.46 909.86 425.32 500.08 Pass-Major Risk 12,820.00 8,817.06 12,750.00 8,740.17 55.98 81.50 2.53 4,510.44 -7,322.88 0.46 918.35 418.23 514.10 Pass-Major Risk 12,820.00 8,817.06 12,775.00 8,753.82 55.98 81.53 3.15 4,523.03 -7,339.61 0.46 927.88 418.32 523.08 Pass-Major Risk 12,825.04 8,818.15 12,800.00 8,766.37 56.00 81.55 2.64 4,536.14 -7,356.81 0.46 938.43 414.55 536.65 Pass-Major Risk 12,830.00 8,819.15 12,825.00 8,777.78 56.02 81.58 2.05 4,549.72 -7,374.43 0.46 949.93 410.67 551.42 Pass-Major Risk 12,830.00 8,819.15 12,850.00 8,788.00 56.02 81.61 2.46 4,563.73 -7,392.42 0.46 962.33 410.76 563.55 Pass-Major Risk 12,840.00 8,821.00 12,875.00 8,797.03 56.07 81.64 0.62 4,578.15 -7,410.74 0.46 975.53 402.41 584.45 Pass-Major Risk 12,840.00 8,821.00 12,900.00 8,804.83 56.07 81.67 0.89 4,592.93 -7,429.33 0.46 989.45 402.49 598.21 Pass-Major Risk 12,840.00 8,821.00 12,925.00 8,811.38 56.07 81.69 1.09 4,608.02 -7,448.15 0.46 1,004.13 402.58 612.76 Pass-Major Risk 12,850.00 8,822.59 12,950.00 8,816.66 56.12 81.72 -1.00 4,623.40 -7,467.14 0.46 1,019.35 393.64 636.55 Pass-Major Risk 12,850.00 8,822.59 12,975.00 8,820.66 56.12 81.75 -0.93 4,639.01 -7,486.25 0.46 1,035.14 393.72 652.27 Pass-Major Risk 12,854.32 8,823.19 13,000.00 8,823.37 56.14 81.77 -1.90 4,654.81 -7,505.42 0.46 1,051.43 389.72 672.46 Pass-Major Risk 14,014.67 8,817.68 13,025.00 8,824.77 63.25 81.80 54.04 4,670.77 -7,524.61 0.46 1,055.08 455.50 615.80 Pass-Major Risk 14,025.00 8,817.49 13,050.00 8,824.88 63.33 81.82 52.49 4,686.83 -7,543.77 0.46 1,049.41 459.74 606.11 Pass-Major Risk 14,025.00 8,817.49 13,075.00 8,823.68 63.33 81.85 52.46 4,702.97 -7,562.82 0.46 1,044.24 459.80 600.88 Pass-Major Risk 14,034.26 8,817.32 13,100.00 8,821.18 63.40 81.87 50.93 4,719.15 -7,581.71 0.46 1,039.63 463.38 592.92 Pass-Major Risk 14,040.84 8,817.20 13,125.00 8,817.40 63.46 81.89 49.74 4,735.33 -7,600.38 0.46 1,035.61 465.81 586.68 Pass-Major Risk 14,050.00 8,817.04 13,150.00 8,812.33 63.53 81.91 48.08 4,751.45 -7,618.80 0.46 1,032.21 46896 580.39 Pass-Major Risk 14,050.00 8,817.04 13,175.00 8,806.28 63.53 81.93 47.77 4,767.51 -7,636.98 0.46 1,029.39 469.02 577.62 Pass-Major Risk 14,060.50 8,816.85 13,200.00 8,800.17 63.62 81.95 45.85 4,783.56 -7,655.15 0.46 1,026.99 472.36 572.17 Pass-Major Risk 14,075.00 8,816.59 13,225.00 8,794.06 63.74 81.97 43.32 4,799.61 -7,673.32 0.46 1,025.17 476.47 566.60 Pass-Major Risk 14,350.00 8,812.15 13,250.00 8,787.95 65.92 81.99 59.00 4,815.66 -7,691.49 0.46 1,017.33 446.59 588.51 Pass-Major Risk 14,350.00 8,812.15 13,275.00 8,781.84 65.92 82.01 58.66 4,831.71 -7,709.65 0.46 1,009.97 446.65 581.31 Pass-Major Risk 14,363.62 8,811.95 13,300.00 8,775.73 66.03 82.03 56.24 4,847.76 -7,727.82 0.46 1,002.85 453.77 567.60 Pass-Major Risk 14,375.00 8,811.79 13,325.00 8,769.62 66.12 82.05 54.16 4,863.81 -7,745.99 0.46 996.30 459.38 555.90 Pass-Major Risk 14,375.00 8,811.79 13,350.00 8,763.51 66.12 82.07 53.82 4,879.86 -7,764.15 0.46 990.09 459.44 549.88 Pass-Major Risk 14,375.00 8,811.79 13,375.00 8,757.39 66.12 82.10 53.46 4,895.91 -7,782.32 0.46 984.48 459.50 544.46 Pass-Major Risk 14,389.82 8,811.57 13,400.00 8,751.28 66.24 82.12 50.85 4,911.96 -7,800.49 0.46 979.08 466.30 532.79 Pass-Major Risk 14,400.00 8,811.42 13,425.00 8,745.17 66.33 82.14 48.95 4,928.01 -7,818.65 0.46 974.28 470.66 524.07 Pass-Major Risk 14,400.00 8,811.42 13,450.00 8,739.06 66.33 82.17 48.59 4,944.07 -7,836.82 0.46 969.90 470.73 519.91 Pass-Major Risk 14,410.03 8,811.28 13,475.00 8,732.95 66.41 82.19 46.70 4,960.12 -7,854.99 0.46 965.97 474.76 512.39 Pass-Major Risk 14,425.00 8,811.07 13,500.00 8,726.90 66.55 82.21 44.06 4,976.11 -7,873.23 0.46 962.54 480.24 503.97 Pass-Major Risk 14,425.00 8,811.07 13,525.00 8,721.37 66.55 82.24 43.73 4,991.60 -7,892.05 0.46 958.52 480.32 500.17 Pass-Major Risk 14,425.00 8,811.07 13,550.00 8,716.46 66.55 82.27 43.43 5,006.47 -7,911.53 0.46 954.19 480.40 496.03 Pass-Major Risk 14,437.55 8,810.89 13,575.00 8,712.18 66.66 82.29 41.25 5,020.70 -7,931.64 0.46 949.25 484.54 487.31 Pass-Major Risk 14,450.00 8,810.72 13,600.00 8,708.53 66.77 82.32 39.12 5,034.26 -7,952.32 0.46 943.94 488.23 478.63 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 7 of 12 COMPASS 2003.16 Build 73 v/ BH BAKER HUGHES ER HUGHES Travelling Cylinder Report INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-10-Z-10A WPS-Plan#4 Z-10A Offset Site Error: 0.00ft Survey Program: 96-GCT-MS,9597-GCT-MS,9600-INC+TREND,9850-MWD,9850-MWD+IFR+MS Rule Assigned:Major Risk Offset Well Error: 0.00ft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +EI-W Hole Size Centre Distance Deviation (ft) (ft) (ft) (ft) (ft) (ft) (°) (ft) (ft) (ft) (ft) (ft) (ft) 14,450.00 8,810.72 13,625.00 8,705.52 66.77 82.35 38.92 5,047.12 -7,973.54 0.46 938.03 488.31 472.84 Pass-Major Risk 14,460.00 8,810.58 13,650.00 8,703.16 66.87 82.38 37.23 5,059.26 -7,995.26 0.46 931.69 490.97 464.06 Pass-Major Risk 14,475.00 8,810.67 13,675.00 8,701.45 67.01 82.41 37.07 5,070.66 -8,017.44 0.46 924.78 491.58 456.40 Pass-Major Risk 14,492.84 8,811.54 13,700.00 8,700.39 67.18 82.44 36.88 5,081.30 -8,040.04 0.46 917.11 492.29 447.84 Pass-Major Risk 14,510.79 8,813.26 13,725.00 8,700.00 67.35 82.47 36.64 5,091.14 -8,063.02 0.46 908.69 493.00 438.52 Pass-Major Risk 14,528.35 8,815.75 13,750.00 8,700.27 67.52 82.50 36.38 5,100.19 -8,086.32 0.46 899.53 493.70 428.50 Pass-Major Risk 14,545.51 8,818.96 13,775.00 8,701.22 67.68 82.53 36.08 5,108.44 -8,109.90 0.46 889.67 494.38 417.80 Pass-Major Risk 14,562.25 8,822.81 13,800.00 8,702.85 67.84 82.56 35.75 5,115.86 -8,133.71 0.46 879.12 495.10 406.44 Pass-Major Risk 14,578.51 8,827.23 13,824.92 8,705.15 67.99 82.59 35.40 5,122.43 -8,157.64 0.46 867.94 495.81 394.47 Pass-Major Risk 14,594.52 8,832.23 13,850.00 8,707.80 68.14 82.62 34.99 5,128.62 -8,181.80 0.46 856.45 496.54 382.22 Pass-Major Risk 14,610.19 8,837.73 13,875.00 8,710.44 68.28 82.65 34.52 5,134.79 -8,205.88 0.46 845.18 497.27 370.25 Pass-Major Risk 14,625.00 8,843.49 13,900.00 8,713.08 68.42 82.68 33.98 5,140.96 -8,229.96 0.46 834.11 497.99 358.58 Pass-Major Risk 14,640.51 8,850.07 13,925.00 8,715.73 68.55 82.72 33.37 5,147.13 -8,254.04 0.46 823.28 498.74 347.12 Pass-Major Risk 14,655.08 8,856.77 13,950.00 8,718.37 68.68 82.75 32.68 5,153.30 -8,278.13 0.46 812.69 499.49 336.03 Pass-Major Risk 14,669.22 8,863.75 13,975.00 8,721.01 68.80 82.78 31.93 5,159.47 -8,302.21 0.46 802.38 500.21 325.30 Pass-Major Risk 14,682.92 8,870.93 14,000.00 8,723.65 68.91 82.82 31.10 5,165.64 -8,326.29 0.46 792.37 500.93 314.98 Pass-Major Risk 14,700.00 8,880.47 14,025.00 8,726.29 69.05 82.85 30.21 5,171.81 -8,350.37 0.46 782.71 501.80 304.85 Pass-Major Risk 14,708.94 8,885.71 14,050.00 8,728.94 69.12 82.89 29.24 5,177.98 -8,374.45 0.46 773.38 502.29 295.74 Pass-Major Risk 14,725.00 8,895.54 14,075.00 8,731.58 69.25 82.92 28.20 5,184.15 -8,398.54 0.46 764.47 503.14 286.66 Pass-Major Risk 14,733.10 8,900.70 14,100.00 8,734.22 69.30 82.96 27.10 5,190.32 -8,422.62 0.46 755.96 503.59 278.70 Pass-Major Risk 14,744.48 8,908.18 14,125.00 8,736.86 69.39 82.99 25.93 5,196.49 -8,446.70 0.46 747.92 504.19 271.14 Pass-Major Risk 14,755.41 8,915.59 14,150.00 8,739.50 69.46 83.03 24.71 5,202.66 -8,470.78 0.46 740.37 504.79 264.30 Pass-Major Risk 14,765.89 8,922.91 14,175.00 8,742.15 69.54 83.06 23.41 5,208.83 -8,494.86 0.46 733.34 505.36 258.22 Pass-Major Risk 14,775.00 8,929.44 14,200.00 8,744.79 69.60 83.10 22.07 5,215.01 -8,518.95 0.46 726.86 505.86 253.02 Pass-Major Risk 14,785.57 8,937.20 14,225.00 8,747.43 69.66 83.13 20.66 5,221.18 -8,543.03 0.46 720.95 506.40 248.56 Pass-Major Risk 14,800.00 8,948.11 14,250.00 8,750.07 69.76 83.17 19.21 5,227.35 -8,567.11 0.46 715.69 507.14 244.72 Pass-Major Risk 14,803.63 8,950.92 14,275.00 8,752.72 69.78 83.21 17.71 5,233.52 -8,591.19 0.46 711.00 507.39 242.58 Pass-Major Risk,CC,ES,S CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 8 of 12 COMPASS 2003.16 Build 73 MEC BHI BAKER HUGHES Travelling Cylinder Report INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM .16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-38-Z-38-Z-38 Offset Site Error: 000ft Survey Program: 206-MWD,3229-MWD Rule Assigned:Major Risk Offset Well Error: 0.00ft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +E/-W Hole Size Centre Distance Deviation (ft) (ft) (ft) (ft) (ft) (ft) (1 (ft) (ft) (ft) (ft) (ft) (ft) 13,075.00 8,828.48 12,600.00 8,896.28 56.96 113.28 163.44 1,948.82 -7,301.83 0.36 1,619.54 489.67 1,149.38 Pass-Major Risk 13,075.00 8,828.48 12,625.00 8,894.44 56.96 113.63 163.49 1,964.81 -7,320.96 0.36 1,599.60 490.41 1,128.77 Pass-Major Risk 13,085.90 8,828.59 12,650.00 8,892.64 57.01 113.99 165.15 1,980.75 -7,340.13 0.36 1,579.66 498.65 1,100.91 Pass-Major Risk 13,088.89 8,828.62 12,675.00 8,890.91 57.02 114.34 165.63 1,996.74 -7,359.27 0.36 1,559.90 501.43 1,078.50 Pass-Major Risk 13,100.00 8,828.73 12,700.00 8,889.28 57.08 114.70 167.32 2,012.82 -7,378.34 0.36 1,540.30 509.47 1,051.17 Pass-Major Risk 13,100.00 8,828.73 12,725.00 8,887.76 57.08 115.05 167.35 2,028.94 -7,397.39 0.36 1,520.61 510.27 1,030.75 Pass-Major Risk 13,100.00 8,828.73 12,750.00 8,886.34 57.08 115.41 167.38 2,045.08 -7,416.43 0.36 1,501.07 511.08 1,010.48 Pass-Major Risk 13,100.00 8,828.73 12,775.00 8,885.04 57.08 115.76 167.41 2,061.26 -7,435.44 0.36 1,481.67 511.88 990.34 Pass-Major Risk 13,100.00 8,828.73 12,800.00 8,883.86 57.08 116.12 167.43 2,077.52 -7,454.40 0.36 1,462.37 512.68 970.31 Pass-Major Risk 13,100.00 8,828.73 12,825.00 8,882.74 57.08 116.48 167.45 2,093.89 -7,473.26 0.36 1,443.16 513.48 950.36 Pass-Major Risk 13,111.34 8,828.84 12,850.00 8,881.65 57.13 116.84 169.16 2,110.29 -7,492.09 0.36 1,423.88 521.50 923.38 Pass-Major Risk 13,114.82 8,828.87 12,875.00 8,880.72 57.15 117.19 169.69 2,126.53 -7,511.08 0.36 1,405.01 524.48 901.67 Pass-Major Risk 13,125.00 8,828.97 12,900.00 8,879.52 57.20 117.55 171.23 2,142.71 -7,530.10 0.36 1,386.39 531.40 876.40 Pass-Major Risk 13,125.00 8,828.97 12,925.00 8,878.14 57.20 117.91 171.27 2,158.82 -7,549.16 0.36 1,367.86 532.28 857.08 Pass-Major Risk 13,125.00 8,828.97 12,950.00 8,876.73 57.20 118.27 171.31 2,174.85 -7,568.29 0.36 1,349.61 533.15 838.02 Pass-Major Risk 13,125.00 8,828.97 12,975.00 8,875.35 57.20 118.62 171.35 2,190.85 -7,587.46 0.36 1,331.61 534.03 819.22 Pass-Major Risk 13,125.00 8,828.97 13,000.00 8,873.78 57.20 118.98 171.40 2,206.83 -7,606.62 0.36 1,313.85 534.91 800.67 Pass-Major Risk 13,137.51 8,829.09 13,025.00 8,871.82 57.27 119.34 173.32 2,222.96 -7,625.62 0.36 1,295.92 542.96 774.99 Pass-Major Risk 13,150.00 8,829.21 13,050.00 8,869.64 57.33 119.69 175.26 2,239.16 -7,644.53 0.36 1,278.34 550.56 750.11 Pass-Major Risk 13,150.00 8,829.21 13,075.00 8,867.46 57.33 120.05 175.34 2,255.33 -7,663.48 0.36 1,260.78 551.48 731.71 Pass-Major Risk 13,150.00 8,829.21 13,100.00 8,865.23 57.33 120.40 175.43 2,271.57 -7,682.35 0.36 1,243.39 552.40 713.49 Pass-Major Risk 13,150.00 8,829.21 13,125.00 8,862.94 57.33 120.76 175.52 2,287.90 -7,701.14 0.36 1,226.18 553.32 695.44 Pass-Major Risk 13,150.00 8,829.21 13,150.00 8,860.70 57.33 121.11 175.61 2,304.37 -7,719.82 0.36 1,209.12 554.24 677.55 Pass-Major Risk 13,162.81 8,829.33 13,175.00 8,858.53 57.40 121.47 177.60 2,320.86 -7,738.48 0.36 1,192.02 561.65 653.33 Pass-Major Risk 13,175.00 8,829.45 13,200.00 8,856.34 57.47 121.82 179.51 2,337.20 -7,757.27 0.36 1,175.52 568.29 630.44 Pass-Major Risk 13,175.00 8,829.45 13,225.00 8,854.12 57.47 122.18 179.61 2,353.58 -7,776.03 0.36 1,159.02 569.26 613.06 Pass-Major Risk 13,175.00 8,829.45 13,250.00 8,852.06 57.47 122.54 179.71 2,369.83 -7,794.92 0.36 1,142.96 570.24 596.11 Pass-Major Risk 13,175.00 8,829.45 13,275.00 8,850.02 57.47 122.90 179.80 2,385.83 -7,814.01 0.36 1,127.48 571.24 579.73 Pass-Major Risk 13,186.65 8,829.55 13,300.00 8,848.12 57.54 123.26 -178.37 2,401.74 -7,833.21 0.36 1,112.21 577.31 558.63 Pass-Major Risk 13,200.00 8,829.68 13,325.00 8,846.94 57.62 123.63 -176.33 2,417.82 -7,852.31 0.36 1,097.24 583.59 537.61 Pass-Major Risk 13,200.00 8,829.68 13,350.00 8,847.21 57.62 124.00 -176.35 2,434.07 -7,871.30 0.36 1,082.16 584.66 521.56 Pass-Major Risk 13,200.00 8,829.68 13,375.00 8,848.31 57.62 124.37 -176.41 2,450.44 -7,890.16 0.36 1,067.34 585.73 505.77 Pass-Major Risk 13,211.00 8,829.78 13,400.00 8,849.77 57.68 124.74 -174.86 2,466.88 -7,908.94 0.36 1,052.75 590.80 486.38 Pass-Major Risk 13,211.00 8,829.78 13,425.00 8,851.29 57.68 125.11 -174.95 2,483.34 -7,927.70 0.36 1,038.41 591.89 471.05 Pass-Major Risk 13,218.67 8,829.84 13,450.00 8,852.90 57.73 125.49 -173.90 2,499.61 -7,946.61 0.36 1,024.58 595.48 453.79 Pass-Major Risk 13,225.00 8,829.89 13,475.00 8,854.60 57.77 125.86 -173.07 2,515.80 -7,965.58 0.36 1,011.16 598.50 437.49 Pass-Major Risk 13,225.00 8,829.89 13,500.00 8,856.27 57.77 126.23 -173.17 2,532.03 -7,984.52 0.36 998.06 599.63 423.38 Pass-Major Risk 13,236.20 8,829.97 13,525.00 8,857.71 57.84 126.61 -171.60 2,548.22 -8,003.51 0.36 985.24 603.81 406.55 Pass-Major Risk 13,250.00 8,830.06 13,550.00 8,858.78 57.92 126.98 -169.62 2,564.03 -8,022.86 0.36 973.36 608.13 390.52 Pass-Major Risk 13,250.00 8,830.06 13,575.00 8,859.73 57.92 127.36 -169.69 2,579.84 -8,042.19 0.36 961.60 609.31 377.70 Pass-Major Risk 13,250.00 8,830.06 13,600.00 8,860.70 57.92 127.74 -169.76 2,595.73 -8,061.47 0.36 950.27 610.50 365.31 Pass-Major Risk 13,261.41 8,830.11 13,625.00 8,861.70 58.00 128.11 -168.13 2,611.55 -8,080.80 0.36 939.32 613.82 351.20 Pass-Major Risk 13,275.00 8,830.16 13,650.00 8,862.72 58.09 128.49 -166.18 2,627.33 -8,100.16 0.36 928.93 616.93 337.84 Pass-Major Risk 13,275.00 8,830.16 13,675.00 8,863.77 58.09 128.87 -166.27 2,643.65 -8,119.08 0.36 918.13 618.15 325.95 Pass-Major Risk 13,275.00 8,830.16 13,700.00 8,864.94 58.09 129.24 -166.36 2,659.78 -8,138.14 0.36 908.11 619.36 314.86 Pass-Major Risk 13,288.19 8,830.19 13,725.00 8,865.94 58.17 129.62 -164.47 2,675.62 -8,157.45 0.36 898.69 621.84 303.10 Pass-Major Risk 13,300.00 8,830.21 13,750.00 8,866.68 58.25 130.00 -162.77 2,690.99 -8,177.15 0.36 890.38 623.67 293.08 Pass-Major Risk 13,300.00 8,830.21 13,775.00 8,867.37 58.25 130.39 -162.83 2,705.63 -8,197.41 0.36 883.30 624.96 284.87 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 224/2012 1:49:47PM Page 9 of 12 COMPASS 2003.16 Build 73 ii� r PI iii BHI BAKER HUGHES Travelling Cylinder Report 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-38-Z-38-Z-38 Offset Site Error: 0.00ft Survey Program: 206-MWD,3229-MWD Rule Assigned:Major Risk Offset Well Error: O.00ft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +EI-W Hole Size Centre Distance Deviation (ft) (ft) (ft) (ft) (ft) (ft) (°) (ft) (ft) (ft) (ft) (ft) (ft) 13,309.76 8,830.21 13,800.00 8,868.12 58.32 130.78 -161.44 2,720.09 -8,217.78 0.36 876.91 626.35 277.22 Pass-Major Risk 13,325.00 8,830.19 13,825.00 8,868.96 58.42 131.17 -159.22 2,734.28 -8,238.36 0.36 871.45 627.07 271.13 Pass-Major Risk 13,325.00 8,830.19 13,850.00 8,869.84 58.42 131.56 -159.30 2,748.34 -8,259.01 0.36 866.38 628.40 264.90 Pass-Major Risk 13,325.00 8,830.19 13,875.00 8,870.73 58.42 131.95 -159.37 2,762.44 -8,279.63 0.36 861.97 629.73 259.32 Pass-Major Risk 13,339.75 8,830.16 13,900.00 8,871.64 58.52 132.34 -157.24 2,776.57 -8,300.23 0.36 857.80 629.66 255.30 Pass-Major Risk 13,350.00 8,830.12 13,925.00 8,872.58 58.59 132.73 -155.78 2,791.28 -8,320.43 0.36 853.56 629.52 251.27 Pass-Major Risk 13,350.00 8,830.12 13,950.00 8,873.66 58.59 133.12 -155.87 2,806.09 -8,340.54 0.36 849.69 630.86 246.25 Pass-Major Risk 13,362.67 8,830.06 13,975.00 8,874.89 58.68 13351 -154.06 2,820.71 -8,360.78 0.36 846.48 629.84 244.12 Pass-Major Risk 13,375.00 8,829.99 14,000.00 8,876.22 58.77 133.90 -152.31 2,835.10 -8,381.18 0.36 844.14 628.29 243.38 Pass-Major Risk 13,375.00 8,829.99 14,025.00 8,877.65 58.77 134.29 -152.43 2,849.38 -8,401.65 0.36 842.40 629.65 240.48 Pass-Major Risk,ES,SF 13,385.94 8,829.92 14,050.00 8,878.89 58.84 134.69 -150.88 2,863.69 -8,422.11 0.36 841.11 627.95 240.94 Pass-Major Risk 13,400.00 8,829.81 14,075.00 8,879.80 58.94 135.08 -148.83 2,877.98 -8,442.60 0.36 840.45 624.72 243.51 Pass-Major Risk 13,400.00 8,829.81 14,100.00 8,880.52 58.94 135.47 -148.89 2,892.19 -8,463.16 0.36 840.25 626.08 242.13 Pass-Major Risk,CC 13,409.35 8,829.72 14,125.00 8,881.34 59.01 135.86 -147.55 2,906.35 -8,483.75 0.36 840.68 623.97 244.71 Pass-Major Risk 13,425.00 8,829.56 14,150.00 8,882.38 59.12 136.26 -145.26 2,920.49 -8,504.34 0.36 841.78 618.78 250.93 Pass-Major Risk 13,425.00 8,829.56 14,175.00 8,883.28 59.12 136.65 -145.34 2,934.76 -8,524.85 0.36 843.00 620.14 250.99 Pass-Major Risk 13,425.00 8,829.56 14,200.00 8,884.05 59.12 137.04 -145.40 2,949.30 -8,545.17 0.36 844.62 621.50 251.44 Pass-Major Risk 13,440.46 8,829.38 14,225.00 8,884.86 59.22 137.43 -143.13 2,964.07 -8,565.32 0.36 846.23 615.46 258.98 Pass-Major Risk 13,450.00 8,829.26 14,250.00 8,885.76 59.29 137.82 -141.75 2,978.66 -8,585.60 0.36 848.70 611.80 265.10 Pass-Major Risk 13,450.00 8,829.26 14,275.00 8,886.65 59.29 138.21 -141.82 2,993.37 -8,605.80 0.36 851.58 613.16 266.82 Pass-Major Risk 13,463.54 8,829.07 14,300.00 8,887.70 59.38 138.60 -139.84 3,008.11 -8,625.96 0.36 854.80 606.80 276.29 Pass-Major Risk 13,475.00 8,828.90 14,325.00 8,888.97 59.46 139.00 -138.19 3,022.82 -8,646.13 0.36 858.64 601.10 285.78 Pass-Major Risk 13,475.00 8,828.90 14,350.00 8,890.33 59.46 139.39 -138.28 3,037.43 -8,666.38 0.36 863.09 602.45 289.10 Pass-Major Risk 13,486.15 8,828.73 14,375.00 8,891.51 59.53 139.79 -136.66 3,051.41 -8,687.07 0.36 868.72 596.47 300.66 Pass-Major Risk 13,500.00 8,828.49 14,400.00 8,892.45 59.63 140.18 -134.61 3,065.77 -8,707.51 0.36 874.48 588.07 314.65 Pass-Major Risk 13,500.00 8,828.49 14,425.00 8,893.37 59.63 140.57 -134.67 3,079.99 -8,728.05 0.36 880.72 589.40 319.77 Pass-Major Risk 13,500.00 8,828.49 14,450.00 8,894.37 59.63 140.97 -134.73 3,093.97 -8,748.75 0.36 887.91 590.73 325.83 Pass-Major Risk 13,515.38 8,828.22 14,475.00 8,895.24 59.72 141.36 -132.43 3,108.73 -8,768.91 0.36 894.38 580.42 342.37 Pass-Major Risk 13,525.00 8,828.03 14,500.00 8,896.05 59.79 141.75 -131.01 3,123.18 -8,789.29 0.36 901.80 574.01 356.09 Pass-Major Risk 13,525.00 8,828.03 14,525.00 8,896.76 59.79 142.15 -131.04 3,137.59 -8,809.71 0.36 909.71 575.32 362.88 Pass-Major Risk 13,536.52 8,827.80 14,550.00 8,897.34 59.86 142.54 -129.31 3,152.17 -8,830.01 0.36 917.80 566.98 379.14 Pass-Major Risk 13,550.00 8,827.52 14,575.00 8,897.92 59.94 142.93 -127.27 3,166.72 -8,850.33 0.36 926.46 556.40 398.14 Pass-Major Risk 13,800.00 8,821.89 14,600.00 8,898.73 61.71 143.33 -142.68 3,180.83 -8,870.95 0.36 930.44 636.90 323.09 Pass-Major Risk 13,800.00 8,821.89 14,625.00 8,899.96 61.71 143.73 -142.77 3,194.83 -8,891.62 0.36 934.24 638.26 325.78 Pass-Major Risk 13,813.20 8,821.61 14,650.00 8,901.39 61.81 144.13 -140.84 3,208.90 -8,912.24 0.36 938.32 632.04 335.98 Pass-Major Risk 13,825.00 8,821.37 14,675.00 8,902.91 61.90 144.53 -139.14 3,222.76 -8,932.99 0.36 943.20 626.06 346.78 Pass-Major Risk 13,825.00 8,821.37 14,700.00 8,904.52 61.90 144.93 -139.23 3,236.12 -8,954.05 0.36 949.04 627.41 351.53 Pass-Major Risk 13,834.21 8,821.17 14,725.00 8,906.24 61.98 145.33 -137.92 3,249.48 -8,975.12 0.36 955.37 622.64 362.62 Pass-Major Risk 13,850.00 8,820.85 14,750.00 8,908.09 62.10 145.73 -135.61 3,262.86 -8,996.15 0.36 962.25 612.73 379.19 Pass-Major Risk 13,850.00 8,820.85 14,775.00 8,909.98 62.10 146.13 -135.72 3,276.54 -9,016.99 0.36 968.93 614.07 384.82 Pass-Major Risk 13,850.00 8,820.85 14,800.00 8,911.72 62.10 146.53 -135.81 3,290.58 -9,037.60 0.36 975.80 615.40 390.61 Pass-Major Risk 13,861.43 8,820.61 14,825.00 8,913.09 62.18 146.93 -134.13 3,304.72 -9,058.18 0.36 982.90 607.98 404.99 Pass-Major Risk 13,875.00 8,820.34 14,850.00 8,914.52 62.28 147.33 -132.13 3,319.04 -9,078.62 0.36 990.33 598.27 421.89 Pass-Major Risk 13,875.00 8,820.34 14,875.00 8,916.00 62.28 147.73 -132.20 3,333.74 -9,098.79 0.36 997.57 599.60 428.04 Pass-Major Risk 13,875.00 8,820.34 14,900.00 8,917.36 62.28 148.12 -132.26 3,348.38 -9,119.00 0.36 1,005.44 600.91 434.81 Pass-Major Risk 13,887.81 8,820.08 14,925.00 8,918.41 62.37 148.52 -130.34 3,362.71 -9,139.46 0.36 1,013.90 591.17 452.76 Pass-Major Risk 13,900.00 8,819.84 14,950.00 8,918.96 62.46 148.91 -128.49 3,377.42 -9,159.67 0.36 1,022.43 581.41 470.76 Pass-Major Risk 13,900.00 8,819.84 14,975.00 8,919.45 62.46 149.31 -128.49 3,39221 -9,179.82 0.36 1,031.14 582.70 478.33 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 10 of 12 COMPASS 2003.16 Build 73 Mill B H I BAKER HUGHES Travelling Cylinder Report INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level , Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Offset Design PB Z Pad- Z-38-Z-38-Z-38 Offset Site Error: 0 00ft Survey Program: 206-MWD,3229-MWD Rule Assigned:Major Risk Offset Well Error: 0.0011 Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +E/-W Hole Size Centre Distance Deviation (ft) (ft) (ft) (ft) (ft) (ft) Ii (ft) (ft) (ft) (ft) (ft) (ft) 13,900.00 8,819.84 15,000.00 8,919.56 62.46 149.70 -128.48 3,407.46 -9,199.63 0.36 1,039.81 584.00 485.83 Pass-Major Risk 14,150.00 8,815.31 15,025.00 8,918.87 64.39 150.08 -140.66 3,423.19 -9,219.04 0.36 1,043.08 654.93 419.22 Pass-Major Risk 14,161.95 8,815.11 15,050.00 8,917.38 64.49 150.46 -138.77 3,439.13 -9,238.25 0.36 1,045.81 648.42 428.15 Pass-Major Risk 14,175.00 8,814.89 15,075.00 8,915.81 64.61 150.84 -136.70 3,455.17 -9,257.36 0.36 1,048.95 640.55 438.79 Pass-Major Risk 14,175.00 8,814.89 15,100.00 8,914.31 64.61 151.22 -136.62 3,470.92 -9,276.71 0.36 1,052.74 641.88 441.30 Pass-Major Risk 14,175.00 8,814.89 15,125.00 8,912.93 64.61 151.60 -136.54 3,486.36 -9,296.32 0.36 1,057.52 643.21 444.81 Pass-MajorRisk 14,188.21 8,814.67 15,150.00 8,911.44 64.72 151.99 -134.44 3,501.60 -9,316.09 0.36 1,062.79 634.51 458.39 Pass-Major Risk 14,200.00 8,814.47 15,175.00 8,909.46 64.81 152.37 -132.53 3,516.75 -9,335.87 0.36 1,068.63 626.29 472.04 Pass-Major Risk 14,200.00 8,814.47 15,200.00 8,906.92 64.81 152.75 -132.38 3,531.82 -9,355.66 0.36 1,074.77 627.58 476.87 Pass-Major Risk 14,200.00 8,814.47 15,225.00 8,904.13 64.81 153.13 -132.23 3,546.96 -9,375.35 0.36 1,081.33 628.88 482.10 Pass-Major Risk 14,213.49 8,814.25 15,250.00 8,901.30 64.92 153.51 -130.01 3,562.17 -9,394.99 0.36 1,088.00 618.58 498.53 Pass-Major Risk 14,225.00 8,814.07 15,275.00 8,898.50 65.01 153.89 -128.10 3,577.39 -9,414.62 0.36 1,095.21 609.41 514.42 Pass-Major Risk 14,225.00 8,814.07 15,300.00 8,895.75 65.01 154.27 -127.95 3,592.69 -9,434.20 0.36 1,102.62 610.69 520.53 Pass-Major Risk 14,225.00 8,814.07 15,325.00 8,892.96 65.01 154.65 -127.79 3,608.27 -9,453.56 0.36 1,110.22 611.52 526.83 Pass-Major Risk 14,237.87 8,813.86 15,350.00 8,890.20 65.11 155.03 -125.68 3,623.58 -9,473.12 0.36 1,118.34 600.44 545.41 Pass-Major Risk 14,250.00 8,813.67 15,375.00 8,887.68 65.21 155.42 -123.69 3,638.37 -9,493.13 0.36 1,127.64 589.48 565.08 Pass-Major Risk 14,250.00 8,813.67 15,400.00 8,885.50 65.21 155.80 -123.56 3,652.76 -9,513.45 0.36 1,137.65 590.71 573.87 Pass-Major Risk 14,620.50 8,841.68 15,425.00 8,883.53 68.38 156.19 -138.43 3,667.16 -9,533.79 0.36 1,145.24 698.55 477.28 Pass-Major Risk 14,644.55 8,851.88 15,450.00 8,881.59 68.59 156.58 -137.81 3,681.99 -9,553.82 0.36 1,148.00 702.61 478.44 Pass-Major Risk 14,666.96 8,862.60 15,475.00 8,879.70 68.78 156.97 -137.13 3,697.16 -9,573.60 0.36 1,150.45 706.69 479.83 Pass-Major Risk 14,687.78 8,873.58 15,500.00 8,877.93 68.95 157.36 -136.40 3,712.41 -9,593.33 0.36 1,152.97 710.69 481.83 Pass-Major Risk 14,707.09 8,884.61 15,525.00 8,876.34 69.11 157.75 -135.64 3,727.49 -9,613.21 0.36 1,155.89 714.58 484.74 Pass-Major Risk 14,725.00 8,895.54 15,550.00 8,874.95 69.25 158.14 -134.84 3,742.42 -9,633.21 0.36 1,159.25 718.33 488.56 Pass-Major Risk 14,741.50 8,906.19 15,574.91 8,873.62 69.37 158.53 -134.00 3,757.45 -9,653.03 0.36 1,162.65 721.92 492.91 Pass-Major Risk 14,756.89 8,916.61 15,600.00 8,872.38 69.47 158.92 -133.13 3,772.81 -9,672.83 0.36 1,166.09 725.35 497.73 Pass-Major Risk 14,771.05 8,926.59 15,625.00 8,871.16 69.57 159.31 -132.24 3,788.30 -9,692.41 0.36 1,169.59 728.60 503.05 Pass-Major Risk 14,783.91 8,935.97 15,650.00 8,869.58 69.65 159.69 -131.31 3,804.02 -9,711.79 0.36 1,173.14 731.63 508.87 Pass-Major Risk 14,795.41 8,944.60 15,675.00 8,867.42 69.73 160.07 -130.35 3,819.83 -9,731.04 0.36 1,176.92 734.47 515.38 Pass-Major Risk 14,805.66 8,952.49 15,700.00 8,864.67 69.79 160.45 -129.35 3,835.99 -9,749.91 0.36 1,180.62 737.08 522.22 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/24/2012 1:49:47PM Page 11 of 12 COMPASS 2003.16 Build 73 Mill BHI BAKER HUGHES Travelling Cylinder Report 0 by INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Z-07 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB Z Pad MD Reference: Z-07A @ 88.62ft(Doyon 14) Site Error: 0.00ft North Reference: True Reference Well: Z-07 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Z-07B Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 6 Offset TVD Reference: Offset Datum Reference Depths are relative to Z-07A @ 88.62ft(Doyon 14) Coordinates are relative to:Z-07 Offset Depths are relative to Offset Datum Coordinate System is US State Plane 1927(Exact solution),Alaska Zone 04 Central Meridian is 150°0'0.000 W° Grid Convergence at Surface is:0.75° Ladder Plot 1 I I 1 1 I 1600 ' I I I I I I I I I I I I I I 1 I I I I I I I I I 1 I I I I I I I I I I 1 I I 1 1 I I I I I 1200 '7 C I I I I I I I I I I I t i I I I I I I I IB I I I I 1 OL J J J __ __ J_____ J - a) I I 1 I 1 07 I I I I I Q1 I I I I I .,Ill I I I I I I `I a, 800 - ' II I I I I I 1 V 1 I I 1 I 1 ' 0 I I I I I I I I I I I 1 C CU I I I I I i 0 I I I I I I I I 1 I I I 400 - - ' I I I I I I I I I I I I I I I I I I I I I I I J J J J J J _ _ I I I I I I I 1 I I I I I I I I I I 1 I I I I 0 I I I I - I I 0 2500 5000 7500 10000 12500 15000 M easured Depth LEGEND -ki- Z-07 Z-072-07 V1 -s- Z-10,Z-10,Z-10 V1 Z-3$,Z-3$,Z-3$'vS —I— Z-07,Z-07A,Z-07AV0 —i-- Z-102-10AWPS,PIanN4Z-10AVO CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 224/2012 1:49:47PM Page 12 of 12 COMPASS 2003.16 Build 73 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 C)76 PTD# 2( Z/ I,/ Development Service Exploratory Stratigraphic Test Non-Conventional Well // FIELD:)tom I1�- _ POOL: s-G-(,L/z ?('7 Check Box for Appropriate etter/Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to 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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