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213-030
RECEIVED STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISS ON • REPORT OF SUNDRY WELL OPERATIONS FEB 0 5 2018 1. Operations Performed Abandon 0 Plug Perforations RI Fracture Stimulate 0 Pull Tubing 0 Operation;,X i. rC❑ Suspend 0 Perforate Er Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other:Set CIBP,Add perfs 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 213-030 3. Address: P.O.Box 196612 Anchorage, Development El Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-21773-01-00 7. Property Designation(Lease Number): ADL 0028304&028280 8. Well Name and Number: PBU E-25A 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 13560 feet Plugs measured 9239,11520,12575 feet true vertical 8953 feet Junk measured feet Effective Depth: measured 9239 feet Packer measured 8658,9784 feet true vertical 8600 feet Packer true vertical 8088.8895 feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"Conductor 40-120 40-120 Surface 1214,1368,43 all 13-3/8" 40-2665 40-2665 5380,5020,5380 2670,2260,2670 Intermediate 9091 9-5/8" 37-9128 37-8512 6870 4760 Liner 2163 5-1/2" 8794-10957 8213-9023 7740 6280 Liner 3716 3-1/2" 9812-13528 8907-8958 Perforation Depth: Measured depth: 9043-13482 feet True vertical depth: 8440-8966 feet Tubing(size,grade,measured and true vertical depth) 5-1/2"17#L-80 35-8797 35-8216 Packers and SSSV(type,measured and 5-1/2"TIW HBBP 8658 8088 true vertical depth) 5-1/2"WRD ER 9784 8895 12.Stimulation or cement squeeze summary: Intervals treated(measured): SCANNED /<R ; 5 ::::018 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: 261 24737 16 720 841 Subsequent to operation: 121 42509 14 720 905 14.Attachments:(required per 20 AAC 25.070.25.071,a 25.283) 15.Well Class after work: Daily Report of Well Operations p Exploratory 0 Development p Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil H Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: Authorized Name: Laurie Derrick Contact Name: Laurie Derrick Authorized Title: Pe leum Engine n Contact Email: Laurie.Derrick(a�BP.com Authorized Signature: 1/ V� Date: /1 /20 J 0 Contact Phone: 907-564-5952 Form 10-404 Revised 04/2017 i_.s/,e, V11- 3// /// R � FL+j - U LUl� f/�'/ �L/ RBDMS'� t-' Submit Original Only ! • Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary January 30, 2018 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for the addition of perforations and the setting of a plug for well E-25A, PTD 213-030. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 • • 4 © \ o / (9 \ < / -J LL 0 0 La- 0 Z a m 0 E / 0 ___I / ( 1-- Lu I--- CD 0 z - / o \ < / I Z 0 n @ E 0 I I 0< 0_ 0 \ / / 0Li.J ± CO LU co * \ / fII \ co 0 0 O E C < 0 \ \ X / E o C) > ƒ I 11 -J < � / % ci. ± m / 6 2 m H 0Q � � - \ / 0 / \ \ .1-1J G > 3 mm > s m O E ® 6 0 ? LU \ i ƒ I- « \ \ f co75 D o « M -J 0 0 H < \ \ ~ T 0 ± -I \ 2 b O ± q % a. � \ 0 Z / \ O < > » J Ce > \ O o \ / O / / G < \ < E / / f ? / \ ƒ ± o / 11-1 6 \ < g e I - , 2 2 _m \ u 0 & o CI O U) / \ ± L - Or \ H & n m E e s D e I c m ± z �� o i \ 0_ m / / 6 , Q_ - / / 6 0 ® \ e c / Z z I- L CO R 2 I \ - \ / / ƒ / / o % \ / / m _IO Z O I I Z > Z m % I \ \ \ \ \ \ \ / 7 \ \ \ co E / Z / \ i i Q E t i E O / E % 3 t 5 L H 0 © © / >- \ CN \ / / 7 / R r r 0 < TES= 6-3/8"CNV • VWLLF-EAD= MCEVOY E-2 5 A SAFETY NOTES:WELL ANGLE>70°@ 9900'. ACTUATOR= AXELSON NT KB ELEV= 67.8' I - - I BF ELEV.___ _.__.KOP= 3200' 32' x x 13-3/8'CSG,72#, H 1254' / ( 2074' H5-1/2'OTIS SSSV LAND.NP,D=4.562" I Max Angle= 100°Q 13386 © Datum MD= 9716' L-80 BTRS XO J Datum TVD= 8800'SS 68#,L-80 BTRS x GAS LFT MAK:FELS ST MD ND DEV TY FE VLV LATCH FORT DATE CSG, L-8012.415" ' _II , 5 3001 3001 3 OT DOME RM 16 01/19/15 4 5732 5491 30 OT DOME RM 16 01/19/15 13-3/8"CSG,72#,L-80,13= 12.347" — 2666' 3 7664 7173 27 OT —DM' RM 0 06/27/13 9-58"CSG,47#,L-80 NSCC XO L-80 BTRS 4624' — x x 2 8434 7879 21 OT DM' RA 0 02/01/88 1 8505 7945 21 OT DM' RA 0 02/01418 "STATION X3=(MY HAS EXTENDED PACKING 8686' H5-1/2"OTIS XA SLD SLV,D=4.562^ Minimum ID =2.377" @ 12469' 3-3116" X 2-718" XO - L 8644' 119-5/8"X 5-1/2"SEAL ASSY .j _ 25 8658' --I9-5/8 X 5-1/2 TNV BB FKR,D=4.750' ' ' L8709'- ]H5-1/2'OTIS XNP,D=4.562' _I ' ' 8749' —5-1/2"OTIS XN NP MLLE)TO 4.55'(03/17/13) I 8793' ]-15-1/2"TIW HGR,AD=?? J 5-1/2'TBG,17#,L-80,.0232 bpf,ID=4.892" 8797' t 8797' J-1_5-1/2"SEAL ASSY,NO SEALS TOP OF 5-1/2'LNR, 8794' �— 8801' 1-E LMD TT LOGGED 03/06/88 19-58_CSG,47#,L-80 BTRS,D=8.681' J—I 9128' • , 9239' —5-1/2"WFD CEP(01/05/18)J 9634' —5-1/2"MARKER JOINT I _� _4 9786' IH5-1/2^KMER PACKER,D=2.380' [ESTIMATED TOC — 9812' M �— — — -' 9812' —4.25'BKR DEPLOY SLV,D=3.00A v. +' 8834' —L3-1/2-HES X NIP,ID=2.812"_I I3-1/2'LNR 9.3#,L-80 STL,.0087 bpf,D=2.9927_1-1 10704' �. — 5-12'LW, 17#,L-80 BTRS,.0232 bpf,D=4.892" -L 10963' 5-12'VA-IPSTOCK w/RA TAG cp 10963'(03/28/13) H 10963' 10704' --I3-12"X3-1/16'X0,10=2.786" I Nt- i' if i w' I 5-1/2'• LM FALLOUT WINIXW(E-25A) 10957'- 10966' PERFORATION SUMARY i' .w. REF LOG:SLB MEMORY ORY GR/CDL ON 04/08/13 ` ANGLE AT TOP FERE:E:29°a 9043' Note:Refer to Production DB for historical perf data 1 SQE I SFE 1 I INTERNAL I Opn/Sgz I SHOT I SQZ = 11b20'�-I2-1/8'BP 00/19/15)] -SEE PAGE 2 FOR P32F SUMMARY- 1:11 I I I I I 12469' )—3-3116"X 2-7/8'XO,D=2.377, 31/4'LNR,6.6#,L-80 TCI,.0079 bi,D=2.85^ 12469' p ___I--1:: 12675' JH_2-78'mi.(os/27/73) I t., 13491' J Pa�J 2-78'LNR,6.5#,L-880 STL,.0058 bpf,D=2.441' H 13628' ..1� l DATE REV BY COMMENTS a DATE REV BY COMVBNTS PRLDHOE BAY UGIT 02/0188 Ala 2 RITUAL COMPLETION 11/10/15 JC# JMD SET BRADPEFRFS(10/17-19/15) WELL: E-25A 04/10/13 NORDIC i CTD SIDETRACK(E-25A) 01/07/16 CF/.M) CORRECTED GBP TO BP G_r 11520' FERMT No:`1130300 04/30/13 DWJMD CORRECTED ER PACKER TO MD '03/08/16 JVWJMD CORRECTED TED MISS TO CLOSED AR No: 50-029-21773-01 05/29/13 AG/PJC ADPERF/CEP(05/28-28/13) 01/08/18 BN'JMD SET CAW&ADPERFS SEC 6,T11 N,R14E, 1719'FM_&500'FEL . 07/03/13 BSE/PJC GLV C/O(06/27/13) 01/30/18 LG/JM) CORRECTED FERFS 01/20/15 JTMIJMD GLV CIO(01/19/15) BP Exploration(Alaska) E-25A x x x I 4 X X i 1 1 I I PERFORATION SUMMARY eV lei REF LOG:SLB MEMORY GR/CNL ON 04/08/13 �y le; ANGLE ANGLE AT TOP PERF:29",s+ 9043' 1`, Note:Refer to Production DB for historical perf data SIZE SPE INTERVAL Opn/Sqz SHOT SQZ 151 %I` 3-3/8' 6 9043-9074 0 01/04/18 2" 6 11360- 11390 C 10/18/15 2" 6 11400- 11430 C 10/18/15 2" 6 11470- 11500 C 10/17/15 U 2' 6 11550- 11730 C 04/09/13 =, 2" 6 11930- 12090 C 04/09/13 2" 6 12153- 12243 C 05/28/13 2' 6 12350- 12540 C 04/19/13 Y 6 12630- 12815 C 04/09/13 2" 6 12865- 13115 C 04/09/13 2' 6 13185- 13370 C 04/09/13 2" 6 13430- 13482 C 04/09/13 I • DATE REV BY COMENTS DATE REV BY COAMENTS PRIJOH)E BAY U+4F 02/01/88 Ain 2 INTAAL COMPLETION 11/10/15 JCtiNJM)SET BRADFEWS(10/17-19/15) WELL E-25A 04/10/13NQ JC;;\CTD SIDETRACK(E-25A) 01/07/16 CF/JM) CORRECTED CSP TO BP 11520' PERMIT Nb:`1130300 04/30113 COM) CORRECTED ER PACKER TO M) 03/08/16 JVWJ A) CORRECTS)PEWS TO CLOSED All Nb: 50-029-21773-01 05/29/13 AG/PJC ADFIRF/CIBP(05/28-28/13) 01/08/18 BN/JM) SET CUP&ADPERFS SEC 6,T11N,R14E,1719'FM &500'Fa 07/03/13 BSE'PJC GLV C/O(06/27/13) p01/30/18 LG/JM) CORRECTS)PERFS 01/20/15 JTM'JM) GLV C/O(01/19/15) BP Exploration(Alaska) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMI N REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations Ed Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate ® Other Stimulate ❑ Alter Casing 0 Change Approved Program ❑ J Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other: SCi-C 113P ( 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 213-030 3. Address: P.O.Box 196612 Anchorage, Development l Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-21773-01-00 7. Property Designation(Lease Number): ADL 0028304 8. Well Name and Number: PBU E-25A 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 13560 feet Plugs measured 11520/12575 feet ,ti C. .r,i.; true vertical 8953 feet Junk measured feet Effective Depth: measured 11520 feet Packert%V1 `° 2015 measured 8658 feet 1 true vertical 9012 feet Packer true vertical 8087.52 feet ACY:41'CC Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"Conductor 40-120 40-120 0 0 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate 9091 9-5/8"47#L-80 37-9128 37-8512 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 Tubing(size,grade,measured and true vertical depth) 5-1/2"17#L-80 35-8797 35-8216 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: 2 � ?016 SCANNED JAN a� J 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 185 33034 3 160 776 Subsequent to operation: 248 22650 17 1480 789 14.Attachments:(required per 20 AAC 25.070.25.071,a 25.283) 15.Well Class after work: Daily Report of Well Operations ® Exploratory ❑ Development m Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil I1 Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 .GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature . CWS/, 067(...) Phone +1 907 564 4424 Date 11/16/15 ( RE Form 10-404 Revised 5/2015 �-i /7 i Z ``C RDMs oy 1 7 2015 Submit Original Only A127.-.(4,---- • m a O o 0 0 0 0 0 0 0 ( N- O I` O OO in N = O N N N D ° N = (NO U N o 0 0 0 0 0 0 0 0 i M N M I` t M N d- M d L O W O N LO N M M = M M LON M ,- N O to N- N N M M (n O O O O N = N N CO O7 O) O) 00 M ▪ i i i i I i i H 't N M r (O O O (n N I- '- O O M V N (O M N O) O O M N CO 00 O) O7 O N (N LU O LOOMNm c.I (n N CO N O N M O `- O O N M = N N a1 = = = .- • 0 = =p O � L O O - N I� LO a) • N CO M N CO v = U-1 N CO O) = W a CCC O O O L O O M O O O mmmmmm 0 U J J J J J J J J J = -0 N m N d M A N 0_ O - 666 = U• - U � w &) NNvooN M m M L0 = - T h L w Lo d7 N CO O CO M O) (O CO LO CO W OO N O r- O ti O N- J O) N O 00 W Q MOEH WW W ° UUU2 C7 U oLLlaiLLWwaraz Z w . O w w w w w m O D D J E Z_ Z_ Z_ Z_ J O (n (n (n Z J J J J H • • Packers and SSV's Attachment PBU E-25A SW Name Type MD TVD Depscription E-25A TBG PACKER 8658.36 8087.52 5-1/2" TIW HBBP Packer E-25A PACKER 9784 8895.49 5-1/2"WRD ER Packer • • COi 0 c = c I -a NN O a) rnL a) — aE C Ta N N (U0 +N C Q� cu N O C 13 O 3 ti O O C 4- 0 U '3 -c T- E C o a) " Y 2 -C C a o � O .5 _ o *k � o D c co cpo2 oa) a) aN ( w � a O2 a _c 2 2 c LL 0_ � 3 0 o cor50a co � cu ,- -0 _ D co2 mo a) � a � co a w a) 0 ` cnLLD 3 � E `c' Q Y 7 rn0 M N vi N o a) o ,T9)0_ = •2a 2 QCto`- _a -_ _0 a) - •—•O p a) U ao U L J 5I. O - 0 a O d O N N d Q N a * o O C -a o a) 2 * m — a) O > N E LO w2 0 U 3 0O 10 -10 a M > N N U C N O C N 0 3 a Y co m a) 3 o -C a 0 n3 C O N o � p U 2, N O p _O c0 a . co +� ~ cp 2 co D c as v ui O a w O Et 2 � � L E a) r- _o O Dc`i o O E E � a) E � in � c + L Q d ' Nui .§ 2 O .0_ a) � U O ON QO2 a) - E ,- _7 a) --.-7, E `t C < a) N o m o rn o N O c fo N O •V �' O Q � ca i a 0 �••� = 't C ca U = 't O o@ m 2 a _ U "p C a) `� "O C a) O U CO �! NQ m oD L' am � � dX -0 u)n -0 a) -0G1 N 10Lt • C P . C) a) N .CU) coi °� 2 a) E o ON W a c a) Q- 0- _C cu a 2 2 O N U a) U co G -, < Ow (j 2 ._� cco � - _c � ma0 �° cEr) � N COm. � � aO) oa� Ocl t a3acoc"o 1, * a (0 o �)Ls" 4' 0- U ,- � U 3 co o � � -2 m in a 15 -Lo N O W N 3 `n cD CD _a O N U N O u) 0 ca-0 N O 0 4O lo U N 0 a) j a) V O 0 E N Ce O d N0 6) co O 0- V N. O — QN 0�0 O ~_ (1).e.. 0.)-o m Q O O >+ M n C Y j I) N ic) CI) Y p M >a) m o O s o cod a>) �o ami a) U E O in '- II F) N — > � � 20 .- > > - o � -O = — > > co O-N 0 -Od j _ r0 Q > a -a E C0ar o •- C0a- .` QC0 C 0 - ' ,_ 0a) . oma. c U - rn oF- cn -c 0E- m O F.- al • o m0Y m O F- mN a) Um � 3 3 a) _ 4- I c - 2d a) U4. m = v ip oco 2 5 a) U a) 3 Co a) rn �n m 0 a) a) = a) m 0 in a = Cn U o .S r.- cg m 5 = C � m O > _a . o C N. 0 r - M '- -cia) c 475 Q_- >,J O Q o a) O O Q-(2- N "d 00 ,_ o \ Q- N N `� O O o OQU 3 vY NU 3 0 N (Xi U 3 0 = t, E CIO Cr) (n - 6O ja M (n fo C • _0M C UMQ ID CO U0 C a3 a) C E O CD_0 o m ; • • I 0 0 o a N a)a)o 5 / 0 0 ( Ci e E ± _. - ± / ,- / $ / I E CO $ .c C / : f o / o E co E q .$ ƒ E \ o & £ G m » CL 2 t $ \ Cl) R ,-D-.... 9 'to ._ ® g ° Cl 0 � W / 0/ v- 0 � -3 = % / o 0. ,, a_ / CL E « ® f CD IX / / P / � r5m = \ (13 $ 2 3 D r / © -tcE0 / c - R \77 � _1 1--- o n E _c — 0 D 0 — r o / 4 a 2 D E•-• 6 6 /kR // / ƒ m \ (N ƒ / Q \ - Tr D �MCEVOY • E-2 5A SAF1rIY NOTES:W ELL ANGLE>70°@ 9900'. ACTUATOR= AXELSON NT KB.ELEV= 67 8' I I BF.HEV= 32' zx x KOP= 320-x 0 13-3!8"CSG,72#, 1254' 2074' H5-1/2"OTIS SSSV LAND,NP,D 4.562' H Max Angle= 100°@ 13386' CD Datum ND= 9716' L-80 BTRS XO Datum TVD 8800'SS 68#,L-80 BTRS GAS LFT MANDRELS ST MD TVD DEV TYPE VLV LATCH FORT DATE 13-3/8"CSG,68#,L-80 BTRS,ID=12.415" -I 2624' , 5 3001 3001 3 OT DONE RM 16 01/19/15 13-3/8'CSG,72#,L-80,D=12.347" -J 2665' 4 5732 5491 30 OT DONE RM 16 01/19/15 3 7664 7173 27 OT "DRAY RM 0 06/27/13 9-5/8'CSG,47#,L-80 NSCC XO L-80 BTRS -f 4624' I— >G L >< 2 8434 7879 21 OT MY RA 0 02/01/88 1 8505 7945 21 OT DMY RA 0 02/01/88 "STATION#3=DMY HAS EXTEND®PACKING 8686' —15-112-OTIS XA SLD SLV,13=4.562' Minimum ID = 2.377" @ 12469' I I 3-3/16" X 2-7/8" XO J I 8644' -19-5/8'X 5-1/2"SEAL ASSY 8658' —19-5/8 X 5-1/2 TIW BB PKR D=4.750' 1 1 8709' —I5-1/2"OTIS x PP,ID=4.562" I I • 8749' H5-1/2"OTIS XN NPMILLED TO4.55"(03/17/13) 8793' -I5-1/2'17W HGR,D=?? 1;.....-1 5-1/2'TBG, 17#,L-80,.0232 bpf,D=4.892" -I 879T 8797' -I5-1/2'SEAL ASSY,NO SEALS TOP OF 5-1/2'LNIR H 8794' 8801' H B.MO TT LOGGED 03/06/88 9-5/8"CSG,47#,L-80 BTRS,D=8.681" H 9128' —• ' • 9634' -15-1/2"MA RKER JOINT 9785' H5-112"WFD ER PACKED D=2.380" :1.741 PEr ESTIMATED TOC —I 9812' I 9812' H4.25"BKR DEPLOY SLV,D=3.00' 3-1/2'LNR,9.3#,L-80 STL,.0087 bpf,D=2.992" H 10704' t.';:. ,f 9834' —13-1/2'FES X NP,D=2.812' 5-1/2"LNR,17#,L-80 BTRS,.0232 bpf,D=4.892" —I 10963' ` 5-1/2'W-IPSTOCK w/RA TAG G 10963'(03/28/13) -I 10963' 10704' -13-1/2"X 3-1/16'XO,D=2.786' PERFORATION SUNIMRY ! a Nyl, 5-12M"LFALLOUT WNJOW(E-25A)10957'- 10966' .i REF LOG:SLB NEMDRY GR/CAL ON 04/08/13 4 1 ANGLE AT TOP PERF:90°@ 11360' I Note:Refer to Roduction DB for historical pert data ■ SIZE SPF I NTER1/AL 1 Opn/Sqz I SHOT I SOZ = 11520' -I2-1/8"CBP(10/19/15) 1 I -SEE PAGE 2 FOR FEW SIMMIRY- I I I I I I 12469' H3-3/16"X 2-718"XO,D=2.377' 1 3-1/4"LW,6.64,L-80 TCI,.0079 bpf,D=2.85' -I 12469' 12575' H2-7/8'CBP(05/27/13) 1 1 1 1 .# 13491' _H PB-ID 2-7/8"LNR,6.54,L-80 STL,.0058 bpf,ID=2.441' - 13528' a...J DATE REV BY COMMENTS DATE REV BY COMrENTS PRIUHOEBAY MIT 02/01/88 AIDE 2 IHTIIAL COMPLETION 11/10/15 JDMJMD SET BP/ADPERFS(10/17-19/15) WE..L: E-25A 04/10/13 1ORDIC CTD SIDETRACK(E-25A) PERMT No: 2130300 04/30/13 DJ/J1.4) CORS TE1)ER PACKER TO MD AR No: 50-029-21773-01 05/29/13 AG/PJC ADF RF/CBP(05/28-28/13) SEC 6,T11N,R14E, 1719'FNL 8 500'FEL 07/03/13 BSEJ PJC GLV CJO(06/27/13) 01/20/15 JTMJMD GLV C/O(01/19/15) BP Exploration(Alaska) • • - E-25A x x x x I Ilk >< I X L • w. . PERFORATION SUPRARY REF LOG:SLB MEMORY GR/CNL ON 04/08/13 4 ANGLE AT TOP PERF:90"@ 11360' '.� We:Refer to Production DB for historical pert data FT SIZE SINTERVAL Opn/Sqz SHOT SQZ 1511 - : 2" 6 11360- 11390 0 10/18/15 2" 6 11400-11430 0 10/18/15 i 2" 6 11470- 11500 0 10/17/15 ■ 2" 6 11550- 11730 0 04/09/13 I 2" 6 11930- 12090 0 04/09/13 = 2" 6 12153- 12243 0 05/28/13 ■ 2" 6 12350-12540 0 04/09/13 ■ ■ 2" 6 12630- 12815 C 04/09/13 2" 6 12865- 13115 C 04/09/13 ■ 2" 6 13185- 13370 C 04/09/13 2" 6 13430- 13482 C 04/09/13 ■ ■ ■ I F. DATE REV BY COMNB'lTS DATE REV BY COMA:N1TS FRIJDHOE BAY UMT 02/01/88 AUDI 2 INTHAL COMPLETION ' 11/10/15 JDMJMD SET BRADPERFS(10/17-19/15) WELL E-25A 04/10/13 NORDIC i CTD SIDETRACK(E-25A) PERMIT No: 2130300 04/30/13 al/2A) CORRECTED ER PACKER TO MD AR No: 50-029-21773-01 05/29/13 AG/PJC ADF /CFBP(05/28-28/13) SEC6,T11N,R14E,1719'FM_8 500'FEL 07/03/13 BSE/PJC GLV GO(06/27/13) 01/20/15 JTM'JMD GLV GO(01/19/15) BP Exploration(Alaska) Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. 3 - 0 3 0 Well History File Identifier Organizing(done) ❑ Two-sided 1 111/111 III! I III ❑ Rescan Needed III 11111111 III III RES DIGITAL DATA OVERSIZED (Scannable) C Ior Items: ❑ Diskettes, No. ❑ Maps: Greyscale Items: ❑ Other, No/Type: ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non-Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: Date: 3 3 1 /s/ .,F Project"ect Proofin 1 1Illillili IIIU Proofing BY: Date: 3 3 14 /s/ rvip Scanning Preparation x 30 = (iQ + I (p = TOTAL PAGES / (Count does not include cover sheet) A A a BY: Maria Date: /s/ Production Scanning I I IIIIIIIIIII 11 III 1 Stage 1 Page Count from Scanned File: 1 0/ (Count does include cover sheet) 1 Page Count Matches Number in Scanning Preparation: 1-ES NO BY: 41111, Date: 3/31 / /s/ k'I'lf7 f) 1 Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. III III 11111 II 1liii ReScanned I IlIlIlIHI 11111 BY: Maria Date: /s/ Comments about this file: Quality Checked I 111111 M 9 cC I I W W W W N Q I O d 0 0 it OI LI LL N M i _ E <4 W W 1 1 W 1 I o Z II c wI LLI LLI Z Z U) Z Z 00 N U l 2I g !o 55 Q Q t�1 LL1 0 LL1 LL1 Q N ) j )>' m c O Z Z u) u) 2 p p o m o a U v) O 2 2 .c (p a 7 W cL p1 al 0 0 W U MI MI c C a) d Z m ai O 2 1 2 1 �1 H1 ai al 0 0 Vl M M M M CZ CZ J Z a mUl m W a ( a) °) a C 0 0 0 0 0 C, a a m — Q N 0 Z —W N N N N I Q Q c m cZ v �`— a a a a "-a o 0 = a y a)JI Q Q Q < O Z 0 °1 ur1 Q `) O ay+' OZ L 0 Up mZ WOI WOI WOI WOI )I1m •WQ' w 0) O p o cUk a — ,„ •0y aiy 0y 0 /A p5E ui 1 0 1 Z a a) (.9 2 0LL1m ii° it c2 LL° E it ° p�001 it LL --1 m LLOv w o E ° 0 o p — I 0 I 0 I 0 la �? 1M .� ° .�? I o a. 0 ur E EU + c2�00 'EWE 'cam 'cam o 'cam a cue- cam- C — m 0 o a)U J of 20 0, OOa OO= °0= 0000 0 00 5E 000 5E Lf. -J U p w U R X101 2�1= �I= gI 001 ati gI 001 00i g a awi 0 0 N un p1 a E .. J .. 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W m 0 V 1 o - ,'_i rte-, EH r-; si-, C� .. _ 6 r IT c _' 000000000000 0 C0CC00 -, " lr v v v v v v v v v v v v v v v v v v v 6 ' ' A (.L' r 0 CD N <y. , o W it C� h T. 0 0 r N o? 02 n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 U U U U U U U U U U U U U U U U U!Y-, ig U -4 K �H %.,O �al tt t..)' T T T T T T . . . . . . T . . . . . II r. U O —" O co 0 f O W U d N 'N Z .,,, 0 T T T T T T T T T T T T T T T T T T 0 O 0 T V1 ‘IC ti9 m U CO .--i O '-,ri V F� - Ea O '' v ia)W co ca C7 ro W p � �} � N ^ all CI r M v- r P ,_ M M M M ,_ r r M M N 6N J O 5 P4 Q t`1 H'— c 7 c C c a) ' P 7 a e c r ' a O) 7 T N .-+ 7 = 7 7 7 3 f6 3 7 N 7 3 d 3 3 3 v ,,1 al (to 0 0 o r� a� c�a r� CO ch CO o� co N o u en et v Ln >` r) cat fsa cm °n O cat oa T' ch ,- x > c0 "-- 41//, 1 a E H a s U 0 0 0 0 0 0 w 0 u_p O O J j O a w a w w w cn w 0 cn w w a UJ w O O w i- v, a M n e1 01 u t0 N O a an M ii v Q X X X X X X X X X X X X X X X X X X Li;0 1 F Ca CS to an O s. M w 7 yj T to O O IC to O cm el 0 O V 0 p 0 O 0 O 0 O O 0 O O 0 O O o o 0 W O O O o T O O O O O o O o O O o O T T Q o o p w N ® = u 0 w C7 (9 o ,... -- J U 10 11 J N e' N U c■8 J aL J J tl C,, v cn ti 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a t10 CD In rn r' .1 ~ CD n a`.. tf, 43 ea z cn iu .R Q c < U < < Q g c U J m m 0 0 L ry i't .n an w w o _ s� T T +� ti w p U Q O �, E c4 T N M z T M , N O O N J 2 z J 0 o N C9 w o 00 w In o 00 C7 w o w w v u N aa.. m w L/t c .. - ca a r GI L,-.1 _ t� X n m eiv RECEIVED o� 13 - 3cJ j1:202133 2013 Letter of Transmittal �//� AOGCC BAKER Date: July HUGHES _ 3L7 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): E-01B D-31 BPB 1, D-31 B E-16APB1, E-16A F-01B E-25APB1, E-25A (resubmission to correct API number on E-25APB1 only, E-25A is unchanged) G-12C F-26C B-05DPB1, B-05D Y-33APB1, Y-33A 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. p RECEIVED BY A Ia ill Lid , State of Alaska AOGCC DATE: Pgq -z5 Regg, James B (DOA) P 2,16360 From: AK, D&C Well Integrity Coordinator[AKDCWeIllntegrityCoordinator @bp.com] �� 710 I Sent: Saturday, June 29, 2013 8:39 AM (� To: AK, OPS GC1 OSM; AK, OPS GC1 Field O&M TL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Well Services Operations Team Lead; AK, D&C Wireline Operations Team Lead; AK, RES GPB West Wells Opt Engr; Zoesch, Eric; Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS Well Pad EKG Cc: AK, D&C DHD Well Integrity Engineer; Walker, Greg (D&C); Holt, Ryan P; AK, D&C Well Integrity Coordinator; Weiss, Troy D Subject: OPERABLE: Producer E-25A(PTD#2130300) Passing MIT-T All, Producer E-25A (PTD#2130300) passed a MIT-T on 06/28/2013 after pulling live gas lift valves and replacing with dummy valves. The passing test confirms tubing integrity. The well is reclassified as Operable and may be placed on production after the tubing tale plug is pulled. Please call with any questions. Thank you, Jack Disbrow BP Alaska-Well Integrity Coordinator Global W lls Organization Office: 907.659.5102 WIC Email:AKDCWeIllntegrityCoordinator @bp.com From: AK, D&C Well Integrity Coordinator Sent: Wednesday, June 05, 2013 5:41 AM To: AK, OPS GC1 OSM; AK, OPS GC1 Field O&M TL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Well Services Operations Team Lead; AK, D&C Wireline Oper. "ins Team Lead; AK, RES GPB West Wells Opt Engr; Zoesch, Eric; 'jim.regg @alaska.gov'; 'Schwartz, Guy L (DOA)'; • , OPS Well Pad EKG Cc: AK, D&C DHD Well Integrity Engineer; Walker, Greg (D&C); Holt, Ryan P; AK, D&C ell Integrity Coordinator; Weiss, Troy D Subject: UNDER EVALUATION: Producer E-25A(PTD #2130300) Sustained Ca g Pressure Above MOASP All, Producer E-25A(PTD#2130300) was found to have sustained inne .nnulus casing pressure above MOASP on 06/03/2013. The pressures were found to be tubing/inner ann s/outer annulus at 2220/2280/0. A subsequent TIFL failed the same day. The failing test indicates a lack of two c► petent barriers in the wellbore. The well is reclassified as Under Evaluation and is placed on a 28 day clock to fac" tate evaluation. Proposed plan forward: 1. Slickline: Pull and reset station#3 gas lift/valve with extended packing 2. DHD: Place well on production and TIFX A copy of the TIO plot and wellbore schematic are included for reference. 1 STATE OF ALASKA A KA OIL AND GAS CONSERVATION COMh. .)SON REPORT OF SUNDRY WELL OPERATIONS 1.Operations Abandon (J Repair Well U Plug Perforations U Perforate H • Other U Performed: Alter Casing ❑ Pull Tubing Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended Wells I 2.Operator 4.Well Class Before Work: 5.Permit to Drill Number: Name: BP Exploration(Alaska),Inc Development El . Exploratory ❑ 213-030-0 3.Address: P.O.Box 196612 Stratigraphic❑ Service ❑ 6.API Number: Anchorage,AK 99519-6612 50-029-21773-01-00 • ' 7.Property Designation(Lease Number): 8.Well Name and Number: ADL0028304 PBU E-25A • 9.Logs(List logs and submit electronic and printed data per 20AAC25.071): 10.Field/Pool(s): To Be Submitted PRUDHOE BAY/PRUDHOE` 11.Present Well Condition Summary: Total Depth measured 13560 feet ' Plugs measured 12575 feet true vertical 8952.83 feet Junk measured None feet Effective Depth measured 12575 feet Packer measured See Attachment feet true vertical 8999.69 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 74 20"Conductor 36-110 36-110 0 0 Surface See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Intermediate None None None None None None Production 9094 9-5/8"47#L-80 34-9128 34-8512.39 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 11555-11730 feet 11930-12090 feet 12153-12243 feet 12243-12273 feet 12350-12540 feet 12630-12815 feet 12865-13115 feet 13185-13370 feet 13430-13482 feet True Vertical depth 9012.96-9015.17 feet 9012.4-9011.2 feet 9007.75-9003.85 feet 9003.85-9003.51 feet 9001.91-9000.64 feet 8997.34-8989.46 feet 8987.91 -8990.11 feet 8992.53-8984.07 feet 8974.03-8965.54 feet Tubing(size,grade,measured and true vertical depth) 5-1/2"17#L-80 33-8797 33-8216.5 Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 198 13286 3 0 811 Subsequent to operation: 275 16415 12 0 414 14.Attachments: 15.Well Class after work: Copies of Logs and Surveys Run Exploratorj❑ Development 0 - Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work: Oil Gas U WDSPLU GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUC-❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Nita Summerhays Email Nita.Summerha s• BP.com Printed Name Nita Summerha, � Title Petrotechnical Data Techinican %���� Signa � / Phone 564-4424 Date 6/18/2013 �it'��L//���i���/viii..: / �� V � RBDMS JUN 26 2 .1 /2 ni3 ..,„„e4g.5-,‘, Form 10-404 Revised 10/2012 Submit Original Only • TREE= 6-3/8"CNV WELLFEAD= MCEVOY E-2 5 A SA1�.Y NOTES:WELL ANGLE>70°@ 9900'. ACTUATOR= AXELSON NT KB.ELEV= 67.8' I - BF ELEV 32 x x KOP= 3200 13-3/8'CSG,721/, 1254' / I r 2074' -1-15-1/7'OTIS SSSV LAM) NIP,ID=4.562" Max Angie= 100°©13386' Datum MD= 9716' L-80 BTRS XO Datum TVD-... 8800'SS 68#,L-80 BTRS x GAS LFT MANDRELS S C ST MD TVD DEV TYPE VLV LATCH PORT DATE 13-3/8"CSG,68#,L-80 BTRS,ID=12.415' -I 2624' ; , 5 3001 3001 3 OT DOME RM 16 04/21/13 4 5732 5491 30 OT SO RM 20 04/21/13 13-3/8'CSG,72#,L-80,D=12.347" H 2665' 3 7664 7173 27 OT **MY RA 0 09/29/03 9-5/8'CSG,47#,L-80 NSCC XO L-80 BTRS -I 4624' I— x 11 X 2 8434 7879 21 OT DMY RA 0 02/01/88 1 8505 7945 21 OT DMY RA 0 02/01/88 "STATION#3=DMY HAS EXTBND®PACKING Minimum ID =2.377" CCU 12469' ! I I I I 8686' I--15-1/7 OTIS XA SLD SLV,D=4.562" 3-3/16" X 2-7/8" XO I 8644' H9-5/8"X5-112'SEAL ASSY g I 8658' 1-19-5/8 X 5-1/2 TIW BB PKR,D=4.750" I I I I 8709' I-15-1/7 OTIS X NP,D=4.562' I 1 1 ( 8749' H5-1/2'OTIS XN NP MLLED TO 4.55"(03/17/13) I 8793' H5-1/2"TNVHGR,ID=?? I 5-1/2"TBG,17#,L-80,.0232 bpf,13=4.892" -I 8797' 1 8797' H5-112"SEAL ASSY.NO SEALS I 111 N TOP OF5-1/2'LNR -I 8794' 8801' --I ELM)TT LOGGED 03/06/88 I ■ 9-5/8"CSG,47#,L-80 BTRS,ID=8.681' H 9128' • 9634' H5-1/2"MARKER JOINT 9785' H5-1/2"WFD ER PACKER,D=2.380' I EST 4AT D TOC -I 9817 * 9812' H425'BKR DEPLOY SLV,D=3.00' I 4. 9834' H3-1/2"H E S X NP,D=2.812" I 3-1/2"LNR,9.3#,L-80 STL,.0087 bpf,13=2.992" 1-I 10704' -4. 5-1/2"LNR.17#,L-80 BTRS,.0232 bpf.D=4.892" -I 10963' .' . 4 .. 5-1/2"WFFSTOCK w/RA TAG ft 10963'(03/28/13) --I 10963' •4 10704' H 3-1/2"X 3-1/16"XO,D=2.788" 1 4. PERFORATION SUMMARY REF LOG:SLB MEMORY GR/CNL ON 04/08/13 w +> 5-1/2'LNR AALLOUT WINDOW(E25A)10957'-10966' ANGLE AT TOP PERK:88°© 11550' •4 Note:Refer to R-odu:tion DB for historical perf data SIZE SFf IYTEA/AL Opn/Sqz SHOT Sol 2" ' 6 11550-11730 0 +04/09/13 2' 6 11930-12090 0 04/09/13 2' 6 12153-12243 0 05/28/13 2" 6 12350-12540 0 04/09/13 ' 1 12469' H3-3/16"X 2-7/8"XO,D=2.377' 2' 6 12630-12815 C 04/09/13 , 2" 6 12865- 13115 C 04/09/13 = 12575' H2-7/8"08'(05/27'13) 2" 6 13185-13370 C 04/09/13 ' 7 6 13430-13482 C 04/09/13 ' _ __J 3-1/4"LNR,6.6#,L-80 TO,.0079 bpf,D=2.85" -C 12469' 2-7/8"LNR,6.5#,L-80 STL,.0058 bpf,D=2.441' 13528' ,4� PM 13491' H P DATE I2 /BY COMMENTS DATE REV BY COMMENTS PR(DFDE BAY UNIT 02/01/88 AID 2 INTIIAL COMPLETION 04/30/13 DJ/JM) CORRECTED B PACKER TO MD WELL E-25A 04/10/13 NORDIC 2 CTD SIDETRACK(E25A) 05/29/13 AG/PJC ADPERF/C8P(05/28-28/13) FERNIFT No:' 130300 04/17/13 PJC JM)DRAFT CORRECTIONS API No: 50-029-21773-01 04/29/13 TBLY RIG GLV C/O(04/21/13) SEC 6,111N,R14E, 1719'FNL&500'FEL 04/29/13 RP/PJC FINAL APPROVAL 04/29/13 TBDI PJC SET B PACKER(04/20/13) BP Exploration(Alaska) w N O O 0. CO Or- CO O� CO C CCOO N N N CND U Q 0 0 0 0 0 m r00 co(DOV I N- ✓ co LO co G) 0) O ce) r 0 M CD 0) - M 0 CO r N_ CC) M - O 0 N 0 O r CND COO co 0) 0) CO 0 CO N N lM 00) CO Ch 0 0 O M C7 N M C'�) C") r 0 0 4 N N0) 00 r0 CO CO 0) 0) N E U ONO cr) co N CO N O 0) ✓ O N (0 0 I� _ 00chNO) rNNCD r r r r V • M N rn v d V C) N M - 18 co co CO M C 0 r r MO I Q ` 0 0 0 0 0 0 0 0 0 O00C70DOOOc c000coO 0 J J J J J J J J J •N N C co N co O N O 0 O O CO in .0 = 000000 = Packers and SSV's Attachment ADL0028304 SW Name : Type MD TVD Depscription E-25A PACKER 8658 8019.4 5-1/2"T1W HBBP Packer E-25A PACKER 9785 8828.11 5-1/2"WRD ER Packer Daily Report of Well Operations ADL0028304 CTU #3 - 1.75" Coil (CTV=30.9 bbls) Job Scope: Run a PPROF, Set a CIBP, and Add Perforations MIRU CTU #3. Perform weekly BOP tests. 5/25/2013 ***WSR continued on 5/26/13*** CTU #3 - 1.75" Coil (CTV=30.9 bbls) Job Scope: Run a PPROF, Set a CIBP, and Add Perforations MIRU CTU #3. Perform weekly BOP tests. 5/25/2013 ***WSR continued on 5/26/13*** CTU #3 - 1.75" Coil (CTV=30.9 bbls) Job Scope: Run a PPROF, Set a CIBP, and Add Perforations MU WFD MHA w/dummy gun BHA w/2.27" nozzle. RIH with well flowing. Starting locking up at 11,800'. Called PCC to shut in well. RIH. Tag at 13,460'. PUH and paint flag at 13,430'(E). Notify PCC wing valve coming back open. POOH. MU SLB PPROF toolstring & RIH. Log 40, 60 & 80fpm up passes from 11450-13430'. Perform stop counts at 11500', 11830', 12220', 12585', 12840', 13150', & 13400'. 5/26/2013 ***Job continued on 5/27/13 WSR*** CT 'T75" Coil (Cl V=30.9 bbls) Job Scope: Run a PPROF, Set a CIBP, and Add Perforations Log 60fpm up passes from 11450-13430'. Paint flag at 11,829.6'(E), 11,819'(M). POOH. Download logging data, +37.5' correction. MU WFD 2-7/8" CIBP & RIH. Set CIBP at 12575'. POOH. MU 2"x30' PJ, HMX perf guns and shoot from 12243-12273'. 5/27/2013 ***Job continued on 5/28/13 WSR*** CTU #3 - 1.75" Coil (C1 V=30.9 bbls) Job Scope: Run a PPROF, Set a CIBP, and Add Perforations MU 2"x30' 6SPF, 60DEG, 2006PJ HMX perf guns and shoot the following intervals: 12213-12243', 12183-12213', 12153-12183' IAP was found to be tracking the tubing pressure, notified Well Integrity. POOH. FP well w/40bbls of 50/50 methanol. RDMO. 5/28/2013 ***Job complete*** FLUIDS PUMPED BBLS 438 1% KCL W/SAFELUBE 76 50/50 METH 514 TOTAL VP III PRI T DISTRIBUTION � ,J 10 «,%3 BAKER N S RIBUTION LIS1 HUGHES COMPANY BP Exploration(Alaska)Inc. INTERMEDIATE FINAL Yes (mandatory) WELL NAME —Z5 . gv-P- 1 RUN NUMBER z ,�L� �. (mandatory) ZZ� \1,5 FIELD Prudhoe Bay BH SALESMAN Okechukwu(Okey)Anyanwu (mandatory) (mandatory) COUNTY North Slope Borough BH DISTRICT Alaska (mandatory) (mandatory) STATE Alaska PAGE OF (mandatory) LOG DATE: TODAYS DATE: 6/5/2013 (mandatory) DISTRIBUTION LIST AUTHORIZED BY: BP Exploration(Alaska)Inc. (mandatory) HAS CLIENT BEEN INVOICED FOR ADDITIONAL PRINTS? COMPANY FIELD FINAL (digital/ ADDRESS(FEDEX WILL NOT DELIVER To P.O.Box) LOGS LOGS image) FILM PERSON ATTENTION #OF PRINTS #Ur THIN I S #OF COPIES_#OF COPIES 4 4 II 1 BP Exploration(Alaska)Inc. I I 3 I 1 I I I I Petrotechnical Data Center LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 2 ConocoPhillips Alaska Inc. I I 1 I I I Attn Ricky Elgarico PO Box 100360 Anchorage,Alaska 99510 3 ExxonMobil,Alaska I 1 1 1 J I I Attn Lynda M.Yaskell and/or Leonardo Elias 3700 Centerpointe Dr. Suite 600 Anchorage,Alaska 99503 4 State of Alaska-AOGCC I 1 I 1 I I I I Christine Shartzer 333 West 7th Ave,Suite 100 Anchorage,Alaska 99501 5 DNR-Division of Oil&Gas I I 1 I I I Attn:Sean Clifton 550 W.7th Ave,Suite 800 Anchorage,Alaska 99501 TOTALS FOR THIS PAGE: 0 5 5 0 0 0 TOTALS FOR ALL PAGES: 0 5 5 0 0 0 r1X l Z5 4 P7'6 Z(3C3,90 Regg,4James B (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWeIllntegrityCoordinator @bp.com] Sent: Wednesday, June 05, 2013 5:41 AM To: AK, OPS GC1 OSM; AK, OPS GC1 Field O&M TL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Well Services Operations Team Lead; AK, D&C Wireline Operations Team Lead; AK, RES GPB West Wells Opt Engr; Zoesch, Eric; Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS Well Pad EKG Cc: AK, D&C DHD Well Integrity Engineer; Walker, Greg (D&C); Holt, Ryan P; AK, D&C Well Integrity Coordinator; Weiss, Troy D Subject: UNDER EVALUATION: Producer E-25A(PTD#2130300) Sustained Casing Pressure Above MOASP Attachments: Producer E-25A(PTD#2130300) TIO Plot.docx; Producer E-25A(PTD#2130300)Wellbore Schematic.pdf All, Producer E-25A(PTD#2130304 was found to have sustained inner annulus casing pressure above MOASP on 06/03/2013. The pressures were found to be tubing/inner annulus/outer annulus at 2220/2280/0. A subsequent TIFL failed the same day. The failing test indicates a lack of two competent barriers in the wellbore. The well is reclassified as Under Evaluation and is placed on a 28 day clock to facilitate evaluation. Proposed plan forward: 1. Slickline: Pull and reset station#3 gas lift valve with extended packing 2. DHD: Place well on production and TIFL - A copy of the TIO plot and wellbore schematic are included for reference. , Please call with any questions. Thank you, :T4- SCP _ z fiC) s; Jack Disbrow P )4syo= 6(6,70 ` BP Alaska Well Integrity Coordinator GW g'1çCarz ion }} PCS:3?-= Z_ &ace. o k_ Office: 907.659.5102 WIC Email:AKDCWeIllntegrityCoordinator @bp.com 1 Q 0 5000000 I M ,x5:3 1 a I � M I Q i rte- 0 O M i O M I i W 3 M II A O 1 M 1 �V 1 0 O O CL 0 M t=� QQ Q �+ 25 25 Q O in co Cr) N N • .F en ev woo a N J CO H. 0 d co F7. TREE= 6-3/8"CNV -VAELLIEAD= MCEVOY S E-25A SAFEIT NOTES:WELL ANGLE>70°@ 9900'. ACTUATOR= A XELON NT KB,B_EV"= 67.8' I I BE B_EV= 3Z >r< KOP= 3200' Max Angie= 100 0 13-3/8'CSG,72#, -4 1254' //'>< 2074' H5-1/2"OTIS SSSV LAND.MP,ID=4.562" Datum ND= 9716 L-80 EITRS XO' Datum TVD= 8800 SS 68#,L-80 BTRS __ LFT MANDRELS < ST ND TVD DEV TYPE VLV LATCH FORT DATE 13-3/8"CSG,68#,L-80 MRS,ID=12.415' H 2624' li; 5 3001 3001 3 OT DONE RM 16 04/21/13 4 5732 5491 30 OT SO RM 20 04/21/13 ,13-3/8"CSG,72#,L-80,ID=12.347" —I 2665' 3 7664 7173 27 OT ""DM( RA 0 09/29/03 9-518"CSG,47#,L-80 NSCC XO L-80 BTRS —I 4624' I.—X LI >< 2 8434 7879 21 OT DAY RA 0 02/01/88 1 8505 7945 21 OT [MY RA 0 02/01/88 **STATION#3=DNI Y HAS EXTENDED PACKING Minimum ID =2.377" @ 12469' I I I 1 8585' .H 5-1/2"0115 XA SU)SLV,0=4.562' I 3-3/16" X 2-7/8" X0 . ,... I 8644' —I 9-5/8'X 5-1/2'SEAL ASSY I MK MK I 8658' —19-518 X 5-1/2 11VV BB PKR,ID=4.750" I I 8709' H5-1/2"OTIS X NP,0=4.562* I • 8749' H5-1/2"OTIS XN NIP MLLED T04.55^(03/17/13) 1 8793' —I 5-1/2"TIIN HGR,0=?? 5-1/2'TBG, 17#,L-80,.0232 bpf,0=4.892' — 8797' I 8797' --I 5-1/2"SEAL ASSY,NO SEALS I =e= TOP OF 5-1/2"LM t — 8794' 8801' —1ELMD TT LOGGED 03/06/68 9-5/8"CSG,47#,L-80 B1RS,ID=8.681" 1— 9128' • 111. 087ops• • 1-----ii34-1T-1-15-1/2"MARKER JOWT] 9785' I-15-1/2"WED ER PACKER,0=2.380" mi. rez ESTPAATEDTOC —1 9812' ;..11 , I 9812' H4.25' BKR DEPLOY SLV,0"'3.00" 1 3-1/2"LNR,9.3#,L-80 STL,.0087 bpf,ID=2.992' —{ 10704' 44 ''■-• 9834' H3-1/2"FES X NP,ID=2.812" ".... I 5-1/2"LNR,17#,L-80 SIRS, .0232 bpf,0=4.892" --f 10963' l't: ' ,,+: 5-1/2'IM-IIPSTOCK w/RA TAG i7i 10963'(03/28/13) H 10963' A I 10704' —13-1/2'X 3-1/16"XO,0=2.786" • ''#' PERFORATION SUNTAARY REF LOG:SLB NISNORY GR/CM_ON 04/08/13 0 b.:1 5-1/2'LNR MLLOUT WINDOW(E-25A) 10957'-10966' ANGLE AT TOP PEW:88'@ 11550' Nate:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz SHOT SQZ 2' 6 11550-11730 0 04/09/13 I 2" 6 11930- 12090 0 04/09/13 I 2" 6 12153- 12243 0 05/28/13 12469' H 3-3/16"X 2-7/8"X0,0=2.377" 2' 6 12350-12540 0 04/09/13 • 2" 6 12630-12815 C 04/09/13 I 2' 6 12865-13115 C 04/09/13 12575' —12-7/8"aBP(05/27/13) ..:-. 2' 6 13185- 13370 C 04/09/13 2" 6 13430-13482 C 04/09/13 I / III 3-1/4"LNR,6.6#,L-80 Tal,.0079 bpf,ID=2.85" H 12469' I ' D 1 2-7/8"LNR,' 6.5#,L-80 STL,.0058 bpf,ID= 13491 H PBT 2.441' — 13528' 081 DATE REV BY COMIVENTS DATE REV BY CONIVENTS FRtX)HOE BAY UNIT 02/01/88 AUDI 2 INTIIAL COMPLETION 04/30/13 DJ/JfilD CORRECTED ER PACKER TO lvti WELL: E-25A 04/10/13 NORDIC 2 CTD SIDETRACK(E-25A) 05/29/13 AG/PJC ADPERF/CEP(05/28-28/13) ' PERM!.No:'2130300 04/17/13 PJC JIVD—DRA FT CORRECTIONS API No: 50-029-21773-01 04/29/13 TBD'RIG GLV GO(04/21/13) SEC 6,T11N,R14E,1719'Ftt.&500'FEL 04/29/13 RP/PJC FINAL REMOVAL 04/29/13 1BEY PJC SET ER PACKER(04/20/13) BP Exploration(Alaska) a RECEIVED MAY 16 2013 Letter of Transmittal Frig AOGCC V5-c#30 BAKER Date: HUGHES May 10, 2013 T'"7 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): K-06CPB1, K-06C J-17D J-09BPB 1, J-09B 02-06C 06-08BPB 1, 06-08B E-25APB1, E-25A G-14CPB1, G-14C 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: , State of Alaska AOGCC DATE: . RECEIVED . STATE OF ALASKA MAY 0 1 2013 ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG AOGGG la. Well Status: ®Oil ❑Gas ❑SPLUG ❑Other ❑Abandoned ❑Suspended ✓ 1 b. Well Class ie- 20AAC 25.105 20AAC 25.110 ❑Exploratory ❑Stratigraphic ❑GINJ ❑WINJ ❑WAG ❑WDSPL ❑Other No.of Completions One ®Development ❑Service 2. Operator Name: ✓ 5.Date Comp.,Susp.,or Aband.: ✓ 12. Permit to Drill Number: ✓• BP Exploration(Alaska) Inc. 4/10/2013 213-030 3. Address: 6.Date Spudded: ✓ 13. API Number: ✓ P.O. Box 196612,Anchorage,Alaska 99519-6612 3/29/2013 50-029-21773-01-00 4a. Location of Well(Governmental Section): ✓ 7.Date T.D.Reached: ✓ 14. Well Name and Number:✓ Surface: 4/5/2013 PBU E-25A 1720'FNL,501' FEL, Sec. 06,T11N, R14E, UM 8. KB(ft above MSL): 67.78' ✓ 15.Field/Pool(s) ,r Top of Productive Horizon: 4339'FNL,2584' FEL, Sec.06,T11N, R14E, UM GL(ft above MSL): 30.28' Prudhoe Bay/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD) ✓ 805'FNL, 391'FEL, Sec.12,T11N, R13E, UM 13491' 8964' 4b. Location of Well(State Base Plane Coordinates,NAD: ,- 10.Total Depth(MD+TVD) ,/ 16. Property Designation: ✓ I Surface: x- 664484 y- 5975344 Zone- ASP4 13560' 8953" ADL 028304&028280 TPI: x- 662468 y- 5972680 Zone- ASP4 11.SSSV Depth(MD+TVD) 17. Land Use Permit: Total Depth:x- 659798 y- 5970877 Zone- ASP4 None 18.Directional Survey: ®Yes ❑No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 2000'(Approx.) 21.Logs Obtained (List all logs here and subm,electronic and printed information per 20 AAC 25.071): 22.Re-Drill/Lateral Top Window MD/TVD: MWD/GR/RES,GR/CCL/MCNL 10957' 9023' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT CASING WT.PER FT. GRADE To BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" Insulated Conductor Surface 110' Surface 110' 8 cu vds Concrete 13-3/8" 72# L-80 Surface 2665' Surface_ 2665' _ 17-1/2" 1863 cu ft Permafrost E, 1860 cu ft Permafrost 9-5/8" 47# L-80 NSCC Surface 9128' Surface_ 8512' _ 12-1/4" 1822 cu ft Class'G' 5-1/2" 17# L-80 8794' 10957' 8214' 9023' 8-12" 1150 cu ft Class'G' 3-1/2"x 3-1/4" 9.3#/6.6# L-80 9785' 13528' 8896' 8958' 4-1/4" 187 sx Class'G' x 2-7/8" /6.5# 24. Open to production or injection? ®Yes ❑No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ND (MD+TVD of Top&Bottom;Perforation Size and Number): ( ) ( ) 2"Gun Diameter,6 spf 5-1/2", 17#, L80 8797' 8658'/8087' 43uti.PI.F.ii UN / C i1�31 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 11550'-11730' 9013'-9015' 11930'-12090' 9012'-9011' WAS HYDRAULIC FRACTURING USED DURING COMPLETION?❑Yes El No i 12350'-12540' 9002'-9001' Ltr ? DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 12630'-12815' 8997-8989' --~ 2500' Freeze Protect w/60 Bbls Diesel 12865'-13115' 8988'-8990' 13185'-13370' 8993'-8984' 13430'-13482' 8974'-8966' 27. PRODUCTION TEST Date First Production • Method of Operation(Flowing,Gas Lift,etc April 27,2013 Flowing Date of Test V Hours Tested Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 4/28/2013 5 Test Period ♦ 53 3912 3 57 74388 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 970 1000 24-Hour Rate 4 252 18774 13 N/A 28. CORE DATA Conventional Core(s)Acquired? ❑Yes ®No Sidewall Core(s)Acquired? ❑Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. None RBDMS MAY - 12013' ' Form 10-407 Revised 10/2012 I7 f //`//0 CONTINUE REVESSE2 Submit Original Only 29. GEOLOGIC MARKERS(List all formations anc :ers 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. Zone 1B 10016' 8973' None TDF/Zone 1A 10180' 9011' TDF/Zone 1A 10957' 9023' (Kicked off from Parent Well) Zone 1A/Zone 1B(Invert) 13420' 8976' Formation at Total Depth: Zone 1B(From Base) 13420' 8976' 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. Contact: Email: Ron.Phillips @bp.com o Phillips,56 - 13 Printed Name: Joe i astufk Title: Drilling Technologist Sionatu -: Phone 564-4091 Date: 4A-03 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 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 TREE= 6-3/8"CNV VVET LHEAD= MCEVOY E_2 5 A SAFE. . AOTES:W ELL ANGLE>70°c 9900'. ACTUATOR= AXELSON NT KB.ELEV- 67.8' BF_ELEV= 37 KOP= 3200' 13-3/8"CSG,72#, —I 1254' I/ 2074' —I5-112''OTIS SSSV LAW).NIP,ID=4.562" Max Angle= 100°@ 13386' 0 Datum MD= 9716' L-80 BTRS XO Datum N D= 8800'SS 68#,L-80 BTRS v x GAS LC"MANDRB S T ST MD I Y I) DEV TYPE VLV LATCH PORT DATE 13-3/8"CSG,68#,L-80 BTRS,ID=12.415" H 2624' , 5 3001 3001 3 OT DOME RM 16 04/21/13 13-3/8"CSG,72#,L-80, 0=12.347" —I 2665' 4 5732 5491 30 OT SO RM 20 04/21/13 3 7664 7173 27 OT **DAY RA 0 09/29/03 9-5/8"CSG,47#,L-80 NSCC XO L-80 BTRS —1 4624' I—X L X 2 8434 7879 21 OT DMY RA 0 02/01/88 1 8505 7945 21 OT DM1' RA 0 02/01/88 **STATION#3=MI HAS EXTB4DED PACKING Minimum ID = 2.377" @ 12469' I 8585' H5-1/2"OTIS XA SLD SLV,0=4.562" 3-3116" X 2-7/8" XO 1 . I 8644' H9-5/8"X 5-1/2"SEAL ASSY 8658' 1 J 9-5/8 X 5-1/2 TNJ BB PKR 0=4.750" ' I 8709" I—{5-1/2"OTIS X NP,ID=4.562" ' 8749` --{5-1/2"OTIS XN NP MLLED TO 4.55"(03/17/13) 8793' —I5-1/2"TIW HGR,ID=?? 5-1/2"TBG, 17#,L-80,.0232 bpf,ID=4.892" --I 8797' e........ 8797' —{5-112"SEAL ASSY,NO SEALS TOP OF 5-1/2"LNR H 8794' — 8801' —IELMD TT LOGGED 03/06/88 9-5/8"CSG,47#,L-80 BTRS,ID=8.681" ,— 9128' • ■ • 9534' H5-1/2"MARKER JOINT I 1.2.-.4 = 9785' H5-1/2"WRD BR PACKER,ID=2.380" ESTIMATED TOC H 9812' 9812' —14.25"BKR DEPLOY SLV,ID=3.00" gi ..‘'. 3-112"LNR,9.3#, L-80 STL,.0087 bpf,0=2.992" H 10704' 9834' —I3-1(2"FES X NIP,ID=2.812" 5-1/2"LNR,17#,L-80 BTRS,.0232 bpf,D=4.892" 10953` 1 5-1/2"WHIPSTOCK w/RA TAG©10963'(03/28/13) --1 10953' 10704' H 3-1/2"X 3-1/16"XO,ID=2.786" PERFORATION SUMMARY ' REF LOG'SLB MEMORY GR/CNL ON 04/08/13 5-1/2"LNR MILLOUT WINDOW(E-25A)10957'-10966' ANGLE AT TOP PERF:88°@ 11550' Note:Refer to Production DB for historical pert data SEE SPF INTERVAL Opn/Sqz SHOT SQZ 2" 6 11550-11730 0 04/09/13 2" 6 11930-12090 0 04/09/13 2" 6 12350-12540 0 04/09/13 12469' H3-3/16"x27/8'XO,ID=2.377" 2" 6 12630-12815 0 04/09/13 2" 6 12865-13115 0 04/09/13 ' 2" 6 13185-13370 0 04/09/13 2" 6 13430-13482 0 04/09/13 I 3-1/4"LNR,6.6#,L-80 TCII,.0079 bpf,U=2.85" —I 12469' PBTD H 13491' 2-7/8"LNR,6.5#,L-80 STL,.0058 bpf,ID=2.441' 13528' r1vi DATE REV BY COMMENTS DATE REV BY COMI ENTS PRUDHOE BAY UNIT 02/01/88 AUDI 2 INTIIAL COMPLETION 04/30/13 JNLIJMI CORRECTED ER PACKER TOM] WELL: E-25A 04/10/13 NORDIC 2 CTD SIDETRACK(E-25A) PI32Mf No: 2130300 04/17/13 PJC JMD DRAFT CORRECTIONS AR No: 50-029-21773-01 04/29/13'TBD/PJC GLV CIO(04/21/13) SEC 6,T11N,R14E,1719'FNL&500'Fa 04/29/13 RFf PJC FINAL APPROVAL 04/29/13 TBD/PJC SET ER PACKER(04/20/13) BP Exploration(Alaska) North America-ALASKA-BP Page 1 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00(d67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 3/26/2013 03:00 - 04:00 1.00 MOB P PRE BEGIN RON EVENT WITH NORDIC 2 CTD RIG AT 03:00 ON 03/26/2013. HOLD PJSM WITH CREWS. VERIFY PRE MOVE CHECK LISTS ARE COMPLETE. BACK RIG OFF WELL 03:45. 04:00 - 07:00 3.00 MOB P PRE CLEAR RIG MATS FROM AROUND WELL.IAP= 100 PSI,OAP=0 PSI. TPAND DRILLER COMPLETE ROUTE DRIVE. WAIT ON CH2MHILL FORKLIFT TO BEGIN RIG MOVE. 07:00 - 08:00 1.00 MOB P PRE CREW CHANGE. DRILLER&TP CHECK ROUTE. HANDS MAKE FINAL RIG WALKAROUND AND CHECKS.PJSM TO MOVE DOWN PAD TO SPINE ROAD. 08:00 - 16:30 8.50 MOB P PRE MOVE DOWN DS 6 PAD TO SPINE ROAD. MOVE FROM SPINE RD,TO K PAD RD, PULL ON TO E PAD AND WAIT ON COMMUNICATIONS TO BE DIALED IN. 16:30 - 20:30 4.00 MOB P PRE SPOT SAT CAMP FOR COMS,PULL BACK OUT OF THE WAY. 20:30 - 21:00 0.50 MOB P PRE •PJSM,SPOT RIG OVER WELL. 21:00 - 23:00 2.00 MOB P PRE MIRU OVER E-25A WELL SPOT ANCILLARY EQUIPMENT. NOTIFIED AOGCC OF BOPE TEST r@ 23:00 ON 03/26/2013 WITNESS WAIVED BY CHUCK SHIEVE 21:00 - 21:00 0.00 MOB P PRE CTD NORDIC 2 TO ACCEPTED TO WELL E-25B AT 21:00 3/26/2013 IA/OA 0/0 23:00 - 00:00 1.00 BOPSUR P PRE HELD PJSM VITH CREW FOR BREAKING CONTAINEMENT. CYCLED MASTER,SSV&SWAB,VERIFIED 0 PSI PRIOR TO PERFORMING LEAK TIGHT TEST. 3/27/2013 00:00 - 05:00 5.00 BOPSUR P PRE ND TREE CAP,NIPPLE UP BOPS 05:00 - 05:30 0.50 BOPSUR P PRE PERFORMED H2S/RIG EVACUATION DRILL. HELD AAR WITH ALL PERSONNEL ON LOCATION. GOOD RESPONSE FROM 3RD PARTY PERSONNEL. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 2 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:2512/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:30 - 11:30 6.00 BOPSUR P PRE SHELL TEST STACK TO 4500 PSI. TEST BOPE TO 250/3500 PSI FOR 5 CHARTED MIN TEST CHOKE VALVES,CHOKE AND KILL HCR, INSIDE MANUAL VALVES ON CHOKE AND KILL LINE,BOP RAMS AND ANNULAR PREVENTER. TEST 2 FULL OPENING SAFETY VALVES 'FUNCTION BOPE FROM BOTH REMOTE PANELS TEST IS WITNESSED BY TOOLPUSHER AND WSL. AOGCC INSPECTOR CHUCK SCHIEVE WAIVED TEST WITNESS. NO FAILURES -SEE ATTACHED CHARTS AND TEST REPORT 11:30 - 15:00 3.50 BOPSUR P PRE PICKUP INJECTOR,CUT OF CONNECTOR, CHANGE PACK-OFF PUMP 5 BBLS MEOH,THEN 60 BBLS OF HEATED FRESH WATER TO FILL COIL. PUMP SLACK BACK. ,CUT 2'COIL.INSTALL CONNECTOR,PULL TEST TO 38K LBS. 15:00 - 15:30 0.50 BOPSUR P PRE RIG EVAC/H2S DRILL WITH AAR.COMPLEX DRILL WITH SOME ANCILLARY EQUIPMENT IN OPPOSITE LOCATIONS FROM STANDARD RIG-UP. 15:30 - 17:00 1.50 BOPSUR P ' PRE 1TEST INNER REEL VALVE AND PACK-OFF TO 250/3500 PSI. BLOW BACK COIL,6 BBLS 17:00 - 18:00 1.00 BOPSUR P PRE INSTALL BHI E-HEAD 18:00 - 21:00 3.00 BOPSUR 'P PRE PJSM.PU LUBRICATOR.PT 250/3500 PSI-PASSED.PULL TWC. LD LUBRICATOR AND CLEAR FLOOR. 21:00 - 00:00 3.00 BOPSUR N SFAL PRE INSTALL AND PRESSURE TEST RISER CAP. FILLED BOP WITH MEOH,ATTEMPTED TO PRESSURE TEST SEVERAL TIMES,COULD NOT GE THE TEST TO HOLD.BLEW STACK DOWN,CYCLED SWAB VALVE SEVERAL TIMES,FILLED BOP WITH KCL.ATTEMPTED TO TEST,COULD NOT GET PRESSURE TO HOLD.CALL FOR GREASE CREW.GREASED SWAB VALVE AND CYCLED.PRESSURE UP 250 LOW 350 HIGH-PASSED. 3/28/2013 18:00 - 21:30 3.50 WHIP P WEXIT RIH WITH WINDOW MILLING BHA. TIE IN,+22'CORRECTION SHUT DOWN PUMP AND TAG WHIPSTOCK AT 10,953'MD. PU 10'BRING PUMPS TO 2.8BPM,RIH AND TAG WHIPSTOCK FREE SPIN 2303 PSI AT 2.85 BPM. 00:00 - 01:00 1.00 BOPSUR P PRE PT RISER CAP-PASSED. 01:00 - 02:00 1.00 BOPSUR N WAIT PRE EMPTIED PUP TESTING TREE CAP.BORROW MEOH PUP FROM WELL TESTERS. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 3 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) li Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 02:00 - 04:00 2.00 BOPSUR P PRE PJSM WITH RIG CREW TO BULLHEAD KILL WELL PERFORM BULLHEAD KILL PER OPERATING PROCEDURES. PUMPED 5 BBLS MEOH,355 BBLS 1%KCL, 280 BBLS HI-VIS MUD. ICP KCL=300 PSI @ 5.5 BPM. FCP MUD=995 PSI @ 5.5 BPM. PRESSURE BLED TO 0 PSI AFTER 15 MINS WHEN PUMPS SHUT DOWN. • 04:00 - 04:30 0.50 BOPSUR P PRE FLOW CHECK WELL 04:30 - 05:00 0.50 BOPSUR P PRE PRESSURE TEST DUAL FLAPPER CHECKS 250 LOW/3500 HIGH. 05:00 - 08:00 3.00 BOPSUR N WAIT PRE WAIT ON TRUCKS FOR MINIMUM FLUID LEVEL REQUIRMENTS. MONITOR WELL.LOSSES 10 BPH. PUMP SLACK FORWARD 08:00 - 09:10 1.17 WHIP P WEXIT FILL PITS WITH 8.6 PPG POWERPRO MU WHIPSTOCK BHA,CONFIRM 2 RA TAGS. GET ON WELL. OPEN EDC,PRESSURE TEST QTS TO 250/3500 PSI. 09:10 - 12:30 3.33 WHIP P WEXIT RIH PUMPING AT MIN RATE OF 0.4 BPM AND 835 PSI. 12:30 - 14:15 1.75 WHIP P WEXIT PUWAT 10,800'40K. LOG TIE-IN AST 3 FPM WITH(+22)' CORRECTION LOG CCL FROM 11,030'TO 10,750'. 14:15 - 15:00 0.75 WHIP P WEXIT CLOSE EDC SET WHIPSTOCK WITH TOP AT 10950'IN UP STROKE.SHEAR AT 4000 PSI. CONFIRM WHIPSTOCK SET WITH 2K DHWOB. 15:00 - 15:30 0.50 WHIP P WEXIT POH AND LOG CCL ACROSS LINER TOP SETTING DEPTH TO 9700' CONFIRM LOSS RATE OF 0.5 BPM AT DRILLING RATE OF 3 BPM 15:30 - 16:30 1.00 • WHIP P WEXIT POH FROM 9700'. 16:30 - 17:00 0.50 WHIP P WEXIT PJSM FOR BHA.FLOW CHECK WELL.30 MIN NO FLOW.POWER DOWN COILTRAK. _ GET OFF WELL,STAND BACK INJECTOR. 17:00 - 18:00 1.00 WHIP P WEXIT LAY DOWN WHIPSTOCK SETTING BHA. MU WINDOW MILLING BHA,GUAGE MILLS AT 3.8"GO/3.79"NO-GO. 21:30 - 00:00 2.50 STWHIP P WEXIT TIME MILL WINDOW AT.7 FPH MW 8.5 PPG. MILL TO 10,955'WITH DHWOB 2.75K LBS. IN/OUT BPM 2.57/2.46 ECD 9.35 LOSSES OF 8.5 BBLS PER HOUR. 3/29/2013 00:00 - 06:00 6.00 STWHIP P WEXIT TIME MILL WINDOW AT.7 FPH MW 8.5 PPG. MILL TO 10,958'WITH DHWOB 1-3K LBS. IN/OUT BPM 2.57/2.52 ECD 9.35 LOSSES OF 3.5 BBLS PER HOUR. 06:00 - 08:00 2.00 STWHIP P WEXIT MILL TO WINDOW EXIT AT 10,960.8'. PUMPING 2.6 BPM IN/2.56 BPM OUT AT 2300 PSI 3K DHWOB DECREASING AS MILL OFF,-1 FPH. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 4 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA i UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT ' NPT Depth Phase Description of Operations (hr) (usft) i 08:00 - 10:30 2.50 STWHIP P WEXIT 'DRILL FORMATION AT 1 FPH FROM 10960.8' TO 10,972'MD. 2.6 BPM IN/2.55 BPM OUT AT 2360 PSI 9.35 PPG ECD WITH 8.5 PPG POWERPRO. 10:30 - 11:30 1.00 STWHIP P WEXIT MAKE THREE BACKREAMING PASSES WITH ,NO PROBLEMS.DRY DRIFT WINDOWAND TAG UP ON BOTTOM AT 10,972'MD. 11:30 - 12:00 12:00 - 13:30 0.50 STWHIP P WEXIT PULL BACK IN WINDOW.OPEN EDC.FLOW CHECK WELL-STATIC. 1.50 STWHIP P WEXIT PULL OUT OF HOLE TO BHAAT 200'MD. CLOSE EDC AND POWER DOWN TOOLS. tFLOW CHECK WELL-PASS. 13:30 - 14:30 1.00 STWHIP P WEXIT POOH WITH BHA.SET BACK INJECTOR. BREAK AND LAY DOWN MILLING ASSEMBLY. WINDOW MILL GAUGED AT 3.79"-GO,3.78"-NO GO. STRING MILL GAUGED AT 3.8"-GO,3.79"-NO GO. 14:30 - 15:00 0.50 DRILL P MAKE UP LATERAL ASSEMBLY,BHA#3 WITH 13-1/8"ULTRA XL MOTOR AND BI-CENTER BIT TO 86'AND RUN IN HOLE.MAKE UP INJECTOR AND QUICK TEST SUB.TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- ' PASS. 15:00 17:30 2.50 DRILL P PROD1 RUN IN HOLE WITH LATERAL ASSEMBLY,BHA ' #3 AT 100 FPM.PUMP AT 0.68 BPM WITH 1010 PSI.OUT MICRO MOTION 1.23 BPM.VOLUME 271 BBLS. AT 5,000'MD RUNNING AT 87 FPM WITH 9K DOWN WEIGHT.PUMP AT 0.68 BPM WITH , 1100 PSI.VOLUM 288 BBLS.IA-30 PSI,OA-0 PSI.RUN IN HOLE TO 10,800'MD. 17:30 - 18:00 0.50 DRILL P PROD1 LOG TIE IN WITH FROM 10,800'MD AT 3 FPM WITH 19K DOWN WEIGHT.VOLUME 318 BBLS.CORRECTION OF PLUS 24 FEET.RUN IN HOLE TO WINDOWAT 10,953'MD. • 18:00 - 00:00 6.00 DRILL P PROD1 DIRECTIONAL DRILL 4-1/4"LATERAL HOLE SECTION FROM 10,953'MD TO 11,305'MD. AVG ROP-58.66 FPH.BPM IN/OUT 3.3/3.3, 2952 PSI FREE SPIN,3325-3350 PSI CIRCULATING,1-3 KLBS DHWOB,MW IN/OUT =8.58 PPG,ECD=9.58 PPG,IA/OA=400/0 PSI. PERFORM BHA WIPER TRIPS AS NECESSARY. LOSSES TO FORMATION WHILE DRILLING=1-2 BPH. LOG TIE-IN POINT ACROSS WHIPSTOCK AT 10,963'MD AND APPLY+22'CORRECTION FOR DEPTH CONTROL. SLOW PUMP RATES AT 11,000'MD,8.58 PPG: ! MP#1: 0.5 BPM=1245 PSI,1 BPM=1447 PSI MP#2: 0.5 BPM=1260 PSI,1 BPM=1439 PSI Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 5 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task I Code NPT NPT Depth Phase Description of Operations (hr) (usft) 3/30/2013 00:00 - 06:00 6.00 DRILL P 1 PROD1 DIRECTIONAL DRILL 4-1/4"LATERAL HOLE SECTION FROM 11,305'MD TO 11,700'MD. AVG ROP-65.83 FPH.BPM IN/OUT 3.2/3.2, 2952 PSI FREE SPIN,3325-3350 PSI CIRCULATING,1-3 KLBS DHWOB,MW IN/OUT =8.63/8.72 PPG,ECD=9.72 PPG,IA/OA= 715/11 PSI. PERFORM BHA WIPER TRIPS AS !NECESSARY. LOSSES TO FORMATION ' WHILE DRILLING=0-1 BPH. LOG TIE-IN POINT ACROSS WHIPSTOCK AT 10,963'MD AND APPLY+4'CORRECTION FOR DEPTH CONTROL. 06:00 - 09:00 3.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD TO 11,892'MD AT 64 FPH.PUMP AT 3.22 BPM WITH 3450 PSI. OUT MM AT 3.26 BPM.WOB 3K WITH ECD AT 9.7 PPG EMW. DOWN WEIGHT 11K.MUD . WEIGHT IN AND OUT 8.8 PPG.VOLUME AT 265 , I BBLS.IA-865 PSI,OA-30 PSI.DRILLING ' THROUGH SILTSTONE AND CLAYSTONE. LOSSES 1-3 BPH. 09:00 - 11:00 2.00 DRILL P 1 PROD1 ,DIRECTIONAL DRILL AHEAD TO 12,054'MD AT 54 FPH.PUMP AT 3.23 BPM WITH 3260 PSI. OUT MM AT 3.23 BPM.WOB 2-3K WITH ECD AT 9.7 PPG EMW. DOWN WEIGHT 9K.MUD WEIGHT IN AND OUT 8.8 PPG.VOLUME AT 262 BBLS.IA-890 PSI,OA-40 PSI.DRILLING THROUGH MOSTLY SILTSTONE WITH SOME I SANDSTONE.LOSSES 1-3 BPH. 11:00 12:30 1.50 DRILL , : PROD1 PERFORM WIPER TRIP TO WINDOW AT 21 i FPM PUMPING AT 3.22 BPM WITH 3000 PSI. OUT MICRO MOTION 3.13 BPM.MUD WEIGHT , 'IN AND OUT 8.8 PPG.UP WEIGHT 38K. ' VOLUME 256 BBLS.AT TOP OF WIPE BLEED DOWN IA TO 125 PSI.LOG TIE IN WITH A PLUS 2'CORRECTION.RUN BACK TO BOTTOM AT 30 FPM WITH 19K DOWN WEIGHT.PUMP AT 3.23 BPM WITH 3050 PSI.OUT MM 3.37 BPM. SLOW PUMP RATES AT 11:00 AT 12,050'. PUMP#1 0.5 BPM WITH 1350 PSI,1.0 BPM WITH 1575 PSI. PUMP#2 0.5 BPM WITH 1355 PSI,1.0 BPM WITH 1578 PSI. 12:30 - 15 00 2.50 DRILL P PROD1 DIRECTIONAL DRILL AHEAD TO 12,209'MD AT 69 FPH.PUMP AT 3.21 BPM WITH 3200 PSI. OUT MM AT 3.19 BPM.WOB 3-4K WITH ECD AT 9.91 PPG EMW. DOWN WEIGHT 10K,UP WEIGHT 16K.MUD WEIGHT IN AND OUT 8.8 PPG.VOLUME AT 245 BBLS.IA-225 PSI,OA- ' 50 PSI.DRILLING AHEAD IN SILTSTONE AND SANDSTONE.LOSSES 1-3 BPH. 15:00 - 18:00 3.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD TO 12,377'MD AT 56 FPH.PUMP AT 3.48 BPM WITH 3640 PSI. OUT MM AT 3.47 BPM.WOB 2-3K WITH ECD AT 9.97 PPG EMW.MUD WEIGHT IN AND OUT 8.8 PPG.VOLUME AT 235 BBLS.IA-325 PSI,OA- 90 PSI.DRILLING AHEAD IN SILTSTONE AND I ' SANDSTONE.LOSSES 1-3 BPH. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 6 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM j Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI. Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) i (usft) 18:00 - 21:00 3.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD TO 12,530'MD AT 51 FPH.PUMP AT 3.46 BPM WITH 3640 PSI. OUT MM AT 3.45 BPM.WOB 2-3K WITH ECD AT 10.0 PPG EMW.MUD WEIGHT IN AND OUT I 8.84 PPG.VOLUME AT 205 BBLS.IA-410 PSI, OA-161 PSI.DRILLING AHEAD IN SILTSTONE AND SANDSTONE.LOSSES 1-3 BPH. 21:00 - 22:30 1.50 DRILL P 1 PROD1 PERFORM WIPER TRIP TO WINDOWN F/ 12,530'-10,963'MD. LOG TIE-IN POINT ACROSS WHIPSTOCK AT 10,963'MD AND APPLY+4'CORRECTION FOR DEPTH CONTROL. 'SWAP MUD SYSTEM OUT WITH CLEAN � POWER PRO MUD. I OLD MUD:MW IN/OUT-8.87/8.87 ECD-10.00 FREE SPIN-3358 NEW MUD:MW IN/OUT-8.56/8.58 ECD-10.00 FREE SPIN-3252 22:30 - 00:00 1.50 DRILL P PROD1 DIRECTIONAL DRILL AHEAD TO 12,597'MD AT 45 FPH.PUMP AT 3.56 BPM WITH 3640 PSI. OUT MM AT 3.53 BPM.WOB 2-5K WITH ECD AT 10.0 PPG EMW.MUD WEIGHT IN AND OUT 8.58 PPG.VOLUME AT 319 BBLS.IA-195 PSI, OA-44 PSI.DRILLING AHEAD IN SILTSTONE AND SANDSTONE.LOSSES 1-2 BPH. 3/31/2013 00:00 05:00 5.00 DRILL P 1, PROD1 I DIRECTIONAL DRILL AHEAD TO 12,772'MD AT I 29 FPH.PUMP AT 3.56 BPM WITH 3640 PSI. �OUT MM AT 3.53 BPM.WOB 2-5K WITH ECD AT 10.0 PPG EMW.MUD WEIGHT IN/OUT 8.64 ' 'PPG.VOLUME AT 306 BBLS.IA-240 PSI,OA- 67 PSI.DRILLING AHEAD IN SILTSTONE AND SANDSTONE.LOSSES 1-2 BPH. 05:00 - 07:30 2.50 DRILL P PROD1 DECISION MADE TO POOH AS A RESULT OF DECREASING ROP RATES. DRILLED THRU HIGH SAND&SILTSTONE j FORMATIONS. MUD WEIGHT IN AND OUT 8.6 PPG. I POOH F/12,772'-10,900'MD.TIE IN AND MAKE I DEPTH CORRECTION. LOG CCL F/10,950'-9,650'MD.POOH. 07:30 - 09:30 2.00 DRILL P PROD1 POOH TO 200'MD.PULL AT 60 FPM WITH 33K UP WEIGHT.PUMP AT 3.2 BPM WITH 2455 PSI. OUT MM 2.85 BPM.MUD WEIGHT IN AND OUT 8.6 PPG.IA-200 PSI,OA-85K. 09:30 - 10:00 0.50 DRILL P PROD1 FLOW CHECK WELL-STATIC.BREAK AND LAY DOWN LATERAL ASSEMBLY,BHA#3.BIT AT 1-1. 10:00 - 11:00 1.00 DRILL P PROD1 CHANGE OUT BIT AN MOTOR FOR SAME AND i ADD AGITATOR.MAKE UP LATERAL i ASSEMBLY,BHA#4 AND RUN IN HOLE.MAKE UP INJECTOR AND QUICK TEST SUB AND j TEST TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS. 11:00 - 13:30 2.50 DRILL P PROD1 RUN IN HOLE WITH LATERAL ASSEMBLY,BHA #4 TO WINDOW 10,900'MD.RUN AT 86 FPM WITH 8K DOWN WEIGHT.PUMP AT 0.62 BPM WITH 1175 PSI,OUT MM 1.07 BPM.VOLUME 256 BBLS. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 7 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code 'I NPT NPT Depth I Phase Description of Operations (hr) DRILL P (usft) 13:30 14:00 f PROD1 LOG TIE-IN ABOVE WINDOW AT 3 FPM PUMPING AT 0.61 BPM WITH 1330 PSI.OUT MM 0.61 BPM.DOWN WEIGHT 18K,UP WEIGHT 33K.IAAND OAAT 0.0 PSI. CORRECTION OF PLUS 15 FEET. 14:00 - 15:00 1.00 DRILL P PROD1 RUN IN HOLE WITH LATERAL ASSEMBLY,BHA #4 TO 12,772'MD.RUN AT 45 FPM WITH 16K DOWN WEIGHT.PUMP AT 2.50 BPM WITH 2840 PSI,OUT MM 2.77 BPM.VOLUME 293 BBLS. 15.00 - 17:00 2.00 DRILL C PROD1 DIRECTIONAL DRILL AHEAD IN PILOT HOLE TO 12,888'MD.PUMP AT 3.3 BPM WITH 390 PSI,FREE SPIN AT 3630 PSI.OUT MM 3.3 BPM.WOB 2-3K WITH ECD OF 10.0 PPG.MUD WEIGHT IN AND OUT 8.7 PPG.VOLUME 298 • BBLS.IA-200 PSI,OA-20 PSI. STICKY DRILLING AT 12,842'MD AND 12,860' MD WITH OVERPULLS AND DIFFICULTY GETTING BACK TO BOTTOM.WORK THROUGH AND CONTINUE DRILLING. 17.00 - 22:30 5.50 DRILL C PROD1 DIRECTIONAL DRILL AHEAD IN PILOT HOLE TO 13,041'MD.PUMP AT 3.3 BPM WITH 139 PSI,FREE SPIN AT 3650 PSI.OUT MM 3.3 BPM.WOB 2-3K WITH ECD OF 10.0 PPG.MUD WEIGHT IN AND OUT 8.7 PPG.VOLUME 265 BBLS.IA-200 PSI,OA-20 PSI.LOSSES INCREASED 7-9 BPH. DRILLED AS PER GEOLOGIST:INCREASE INCLINATION UP THRU ZONE 1A @ 110 DEGREES. GEOLOGIST LOOKING TO DECREASE TVD F/ 8940'-8895'.FOUND ZONE OF INTEREST. POOH TO SET BILLET AND SIDETRACK WELL. 22:30 - 00:00 1.50 DRILL C PROD1 POOH TO SIDETRACK WELL.ORIGINAL WELL WAS DRILLED TO LOW THRU ZONE 1A AND NOT ENOUGH PERFABLE SAND LOCATED. POOH F/13,041-10,930'MD. MM IN/OUT-3.32/3.16 PP-3680 ECD-10.0 MW IN/OUT-8.67/8.67 PPG IA-315 OA-187 4/1/2013 00:00 - 03:00 3.00 DRILL C PROD1 POOH F/10,930'-200'MD.POWER DOWN MWD TOOLS,POOH TAG UP AT SURFACE. FLOW CHECK WELL-STATIC.TRIP SHEET (-18 BBLS),GET OF WELL. 03:00 - 05:30 2.50 DRILL C PROD1 LD LATERAL BHA#4.INSTALL AND PRESSURE TEST CHECKS 250 LOW 3500 HIGH- CHARTED/PASSED. HELD PJSM&PU BILLET ASSEMBLY#5.GET ON WELL,TEST QTS- 1 I CHARTED/PASSED. 05:30 - 08:00 I 2.50 DRILL C PROD1 RIH WITH BHA#6 TO SET BILLET TO 10,865' MD. • 1 MM IN/OUT-0.60/0.93 PVT-197 BBLS MW IN/OUT-8.62/8.68 PP-1091 PSI Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 8 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 'X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 08:00 - 08:30 0.50 DRILL C PROD1 LOG DOWN AND MAKE DEPTH CORRECTION OF PLUS 23 FEET.CLOSE EDC PRIOR TO OPEN HOLE ENTRY.RUN TO 11,200'MD AND POSITION BILLET WITH BOTTOM AT 11,200' MD WITH A 0°ORIENTATION.TOP AT 11,189' MD.BRING PUMPS ON LINE AND PRESSURE UP TO 4120 PSI TO SET BILLET.SLACK OFF 5K AND VERIFY SET. 08:30 - 10:00 1.50 DRILL C PROD1 FLOW CHECK WELL-STATIC.POOH AT 94 FPM PUMPING AT 1.46 BPM WITH 1480 PSI, OUT MM 0.95 BPM.UP WEIGHT 31K.VOLUME 229 BBLS.IAAND OA=0 PSI. 10:00 - 15:45 5.75 DRILL X SFAL PROD1 TROUBLE SHOOT HYDRAULIC LEAK ON INJECTOR.FOUND LEAKING HYDRAULIC HARD LINE.NO SPARE PARTS ON THE SLOPE.REMOVE HYDRAULIC HARD LINE AND TAKE TO SLB SHOP FOR WELDING AND TO BE TESTED.RETURN LINE AND RE-INSTALL. PART WAS THE HYDRAULIC HARD LINE FROM THE FILTERS TO THE COUNTER BALANCE VALVE. THIS IS THE SAME LINE THAT FAILED THE LAST TIME. 'NOTE THAT SLB IS ALLOWE 1 HOUR FOR DOWN TIME. THIS WILL MEAN THAT THERE DOWN TIME FOR THIS REPAIR WILL BE FROM 11:00 HOURS THROUGH 15:45 HOURS FOR A TOTAL OF 4.75 HOURS. 15:45 - 16:30 0.75 DRILL C PROD1 POOH WITH BILLET SETTING ASSEMBLY,BHA #5 AT 93 FPM PUMPING AT 1.93 BPM WITH 1760 PSI.OUT MM AT 1.42 BPM.UP WEIGHT 11K.VOLUME 194 BBLS.LOST 2 BBLS PER HOUR DURING REPAIRS.IAAND OA AT 0 PSI. 16:30 - 17:00 0.50 DRILL C PROD1 LAY DOWN BILLET SETTING ASSEMBLY,BHA #5.RUNNING TOOL"J"HYDRAULIC FUNCTIONED PROPERLY AS INDICATED BY ROD SHIFTING AND BOTTOM ROD SHEAR SCREW THREADS WERE EXPOSED. 17:00 - 17:30 0.50 DRILL C PROD1 FUNCTION TEST BOP ELEMENTS PER REQUIREMENTS. 17:30 - 18:30 1.00 I DRILL C PROD1 PICK UP AND MAKE UP LATERAL ASSEMBLY, BHA#6 TO KICK OFF OF BILLET AND DRILL LATERAL SECTION PER NEW WELL PATH. 18:30 - 21:00 2.50 DRILL C PROD1 RIH WITH LATERAL BHA#6 F/86'-10,900'MD. LOG TIE-IN W/DEPTH CORRECTION(+23'). CONT.RIH TAG TOP OF WHIPSTOCK 21:00 - 00:00 3.00 DRILL C PROD1 START TIME DRILLING BILLET F/11,190.4'MD AT 1FT/HR TO 11,194'MD. PUMP RATE:3.0/3.0 BBUMIN PUMP PRESSURE:2925 PSI ECD:10.00 WOB:0-1KLBS MW IN/OUT:8.62PPG/8.62 PPG PVT:523 BBL APPROXIMATELY 85%ALUMINUM IN CUTTINGS ON SHAKERS. END OF RON EVENT REPORT FOR E-25PB1. SEE RON EVENT FOR E-25A. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 9 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date.4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To 1 Hrs l Task Code NPT NPT Depth Phase Description of Operations (hr) I (usft) 4/2/2013 00:00 - 04:30 4.50 DRILL C PROD1 TIME DRILLING BILLET F/11,194'MD AT- 1FT/HR TO 11,197'MD. PUMP RATE:3.0/3.0 BBUMIN PUMP PRESSURE:2925 PSI ECD:10.00 WOB:0-1 KLBS MW IN/OUT:8.62PPG/8.62 PPG PVT:523 BBL APPROXIMATELY 50%ALUMINUM IN CUTTINGS ON SHAKERS. 04:30 - 06:00 1.50 DRILL C PROD1 DRILLING AHEAD F/11,19T-11,300'MD. PUMP RATE:3.3/3.3 BBLJMIN PUMP PRESSURE:3391 PSI ECD:10.00 WOB:1-2 KLBS 1 MW IN/OUT:8.64 PPG/8.64 PPG : 1 PVT:518 BBL 11 VERY LITTLE ALUMINUM IN CUTTINGS. 06:00 - 09:00 3.00 DRILL • C PROD1 1 DRILLING AHEAD IN LATERAL SECTION TO• 11,365'MD AT 56 FPH.PUMP AT 3.2 BPM WITH 3060 PSI,OUT MICRO MOTION 3.2 BPM.WOB 1K WITH ECD OF 9.81 PPG EMW.UP WEIGHT 37K,DOWN WEIGHT 15K.MUD WEIGHT IN AND OUT 8.7 PPG.IA-120 PSI,OA-30 PSI. 09:00 - 12:00 3.00 DRILL C PROD1 DIRECTIONAL DRILL TO 11,407'MD AT 14 FPH IN SLOW DRILLING.BIT GETTING"GRABBY" CAUSING DRILLER TO PULL OFF BOTTOM FREQUENTLY. DIRECTIONAL WORK IS GOOD AND EXPECT RATE TO INCREASE AS FORMATION CHANGES.PUMP AT 3.29 BPM WITH 3220 PSI,OUT MM 3.3 BPM.DOWN I WEIGHT 15.5K,WOB 1K AND 9.78 ECD. 12:00 - 15:00 3.00 DRILL C PROD1 DRILL AHEAD TO 11,530'MD.DRILLING RATE INCREASED TO 41 FPH,SLOW BUT STEADY DRILLING AND GOOD DIRECTIONAL CONTROL.PUMPING AT 3.35 BPM WITH 3400 PSI,OUT MM 3.35 BPM.WEIGHT ON BIT 1.3K, 1 i 1DOWN WEIGHT 14K.ECD 9.82 PPG.VOLUME I 520 BBLS.FLUID LOSSES AROUND 2 BPH.IA- , 280 PSI,OA-130 PSI. 15:00 - 17:00 2.00 DRILL C PROD1 DIRECTIONAL DRILL TO 11,615'MD AT 43 FPH. PUMP AT 3.29 BPM WITH 3420 PSI,OUT MICRO MOTION 3.28 BPM.DOWN WEIGHT 14K,WOB 1.5K WITH 9.83 PPG ECD.MUD WEIGHT IN AND OUT 8.7 PPG.VOLUME 517 BBLS. 17:00 - 17:15 0.25 DRILL C PROD1 PERFROM WIPER TRIP TO OBTAIN SURVEYS. NOT ABLE TO GET SURVEYS.SHOWING VIBRATION AND DIRTY SURVEYS EVEN WITH PUMPS OFF AND NO PIPE MOVEMENT. DECISION MADE TO PULL OUT OF THE HOLE. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 10 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 1X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay }Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:15 - 20:30 I 3.25 DRILL X I DFAL PROD1 PULL OUT OF HOLE AT 23 FPM WITH 38K UP WEIGHT.PUMP AT 3.2 BPM WITH 3050 PSI, OUT MM AT 3.0 BPM.SLOW DOWN PUMPS TO MINIMUM RATE AND PULL PAST BILLET AT 11,199'MD WITH A STRAIGHT UP TOOL FACE. PULL UP INTO WINDOW TO 10,900'MD PUMPING AT MINIMUM RATE.SHUT DOWN AND FLOW CHECK-STATIC. OPEN EDC. AT 6,100'PULLING OUT OF HOLE AT 90 FPM WITH 22K UP WEIGHT.PUMPING A 3.0 BPM WITH 2400 PSI.OUT MM 2.6 BPM.VOLUME 479 BBLS. AT 200'SHUT DOWN AND FLOW CECK- STATIC. CLOSE EDC. PJSM TO CHANGE BHA. CONTINUE TO POH W/4-1/8"LATERAL BHA F/ 200'TO 86'. 20:30 - 21:30 1.00 DRILL X DFAL PROD1 GET OFF WELL AND BREAK OFF BHA FROM CTC. SECURE INJECTOR IN BUNGHOLE. CHANGE OUT MED TOOLS FOR DGS FAILURE. UD BIT HCC RWD2ST3053.750Z SN 7022462 AND M/U HCC RWD2ST3053.75QF SN 7027320 BIT. RIH W/LATERAL BHA#7 TO 86'. 21:30 - 00:00 2.50 DRILL X DFAL PROD1 GET ON WELL. TEST QTS-OK. RIH W/ LATERAL BHA#7 TO 10966'MD AT 100 FPM: MM IN/OUT 0.65/1.2 BPM,W/1500 PSI,MW IN/OUT 8.65/8.71 PPG. CLOSE EDC. TIE IN AT 10860'MD WITH A+23'CORRECTION. CONTINUE TO RIH TO 11200'. SHUT DOWN PUMPS AND ORIENT TO HIGH SIDE WHEN RUNNING THROUGH THE WINDOW AND PAST THE BILLET. RIH F/11200'TO 11615'AT 20 FPM:MM IN/OUT 3.25/3.34 BPM,W/3315 PSI,MW IN/OUT 8.69/8.72 PPG. 4/3/2013 00:00 - 05:30 5.50 DRILL C PROD1 DIRECTIONAL DRILL 4-1/8"HOLE F/11,615'- 12,065'MD. PUMP RATE:3.4/3.4 BBUMIN PUMP PRESSURE:3685 PSI ECD:9.79 PPG WOB:1-2.5 KLBS MW IN/OUT:8.75 PPG/8.79 PPG PVT:495 BBL OFF NPT FOR MWD FAILURE 05:30 - 07:15 1.75 DRILL C PROD1 PERFORM WIPER TRIP FROM 12,065'MD AFTER 450'DRILLED.PULL UP THROUGH BILLET AT 11,198'MD AND WINDOW AT 10,966' MD AT MINIMUM PUMP RATE.WIPE BACK THROUGH SAME WITH PUMPS OFF.NO PROBLEMS ENCOUNTERED DURING WIPER TRIP. • 07:15 - 09:30 2.25 DRILL C PROD1 DIRECTIONAL DRILL AHEAD TO 12,264'MD AT 88 FOOT PER HOUR.PUMP AT 3.22 BPM WITH 3600 PSI,OUT MICRO MOTION 3.23 BPM. DOWN WEIGHT 10K,WOB 2-3K WITH AN ECD OF 9.79 PPG.MUD WEIGHT IN 8.8 PPG,OUT 8.9 PPG.VOLUME 478 BBLS.IA-450 PSI,OA- 230 PSI. Printed 4/26/2013 3:49:47PM North A = ; Page 11 of 16 e Operation Summary Reporf . , Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date.4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud DateTme:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00©67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:30 - 12:30 3.00 DRILL C PROD1 DIRECTIONAL DRILL AHEAD TO 12,464'MD AT 180 FOOT PER HOUR.PUMP AT 3.23 BPM WITH 3670 PSI,OUT MICRO MOTION 3.25 BPM. DOWN WEIGHT 3.5K,WOB 2-3K WITH AN ECD OF 10.2 PPG.MUD WEIGHT IN 8.9 PPG,OUT 8.9 PPG.VOLUME 469 BBLS WITH LOSSES OF 3-4 BPH.IA-500 PSI,OA-290 PSI. 12:30 - 14:30 2.00 DRILL C PROD1 PERFORM WIPER FROM 12,475'MD TO WINDOWAT 10,930'MD.PULLAT27 FPM WITH 38K UP WEIGHT.PUMP AT 3.2 BPM WITH 3300 PSI,OUT MM 3.07 BPM.NO PROBLEMS ENCOUNERED.PUMP AT MINIMUM RATE PULLING PAST BILLET AND THROUGH WINDOW AND WITH PUMPS OFF GOING BACK DOWN THROUGH WINDOW AND PAST BILLET.DOWN WEIGHT 15K.IA-510 PSI,OA-315 PSI. 14:30 - 17:00 2.50 DRILL C PROD1 DIRECTIONALLY DRILLAHEAD TO 12,636'MD AT 65 FPH.PUMP AT 3.4 BPM WITH 3525 PSI. OUT MICRO MOTION 3.44 BPM. START MUD SWAP TO NEW SYSTEM.SOLIDS AT 1.3%AND EXPERIENCING WEIGHT TRANSFER ISSUES. 17:00 - 22:00 5.00 DRILL C PROD1 DIRECTIONAL DRILL 4-1/8"HOLE F/12636'- 12777'MD. PUMP RATE IN/MM OUT:3.45/3.45 BBL/MIN PUMP PRESSURE:3365 PSI ECD:9.79 PPG WOB:1-3.5 KLBS MW IN/OUT:8.61 PPG/8.62 PPG PVT:417 BBL COMPLETE MUD SWAP TO NEW POWER-PRO. 22:00 - 00:00 2.00 DRILL P PROD1 DIRECTIONAL DRILL 4-1/8"HOLE F/12777' 12843'MD. PUMP RATE IN/MM OUT:3.45/3.45 BBL/MIN PUMP PRESSURE:3000 PSI ECD:9.95 PPG WOB:1-3.5 KLBS MW IN/OUT.8.21 PPG/8.63 PPG PVT:324 BBL PIT 1 ISOLATED AND REMOVED FROM PVT AFTER MUD SWAP COMPLETE. 4/4/2013 00:00 - 01:45 1.75 DRILL P PROD1 DIRECTIONAL DRILL 4-1/8"HOLE F/12843'- 12910'MD. PUMP RATE IN/MM OUT:3.45/3.45 BBL/MIN PUMP PRESSURE:3365 PSI ECD:9.79 PPG WOB:1-3.5 KLBS MW IN/OUT:8.63 PPG/8.65 PPG PVT.309 BBL 01:45 - 03:15 1.50 DRILL P PROD1 WIPER TRIP F/12910'MD TO WINDOW AND LOG RA TAG AT 10963'MD.(+4'CORRECTION) TRIP SPEED:24 FPM I PUMP RATE IN/MM OUT:3.05/2.90 BPM MW IN/OUT:8.63/8.64 PPG PUMP PRESSURE:2815 PSI 1 P/U WEIGHT:40 KLBS Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 12 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:OOAM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:15 - 04:45 1.50 DRILL P PROD1 RIH W/4-1/8"LATERAL BHA TO 12910'. TRIP SPEED:22.5 FPM PUMP RATE IN/MM OUT:2.95/3.05 BPM MW IN/OUT:8.63/8.64 PPG PUMP PRESSURE:2790 PSI SO WEIGHT:15-16 KLBS 04:45 - 06:00 1.25 DRILL P PROD1 [DIRECTIONAL DRILL4-1/8"HOLE F/12910'- -12995'MD. PUMP RATE IN/MM OUT:3.25/3.25 BBL/MIN PUMP PRESSURE:3275 PSI ECD:10.01 PPG WOB:3 KLBS MW IN/OUT:8.64 PPG/8.64 PPG PVT:308 BBL 06:00 - 10:30 4.50 DRILL P PROD1 DIRECTIONAL DRILL TO 13,180'MD AT 41 FPH. PUMP AT 3.2 BPM WITH 3300 PSI.WOB 2-4K. ECD 10.0.BREAK OUT INTO GOOD SANDS AT 12,970 MD,BUT DIFFICULT DRILLING AGAIN AFTER 13,115'MD.DIFFICULTY WITH WEIGHT TRANSFER AND PICKING UP OFF BOTTOM REPEATEDLY 10:30 - 11:30 1.00 DRILL _P PROD1 PERFORM WIPER TRIP FROM 13,180'MD.NO PROBLEMS ENCOUNTERED DURING WIPER. 11:30 - 12:00 0.50 DRILL P - •PROD1 DRILL AHEAD TO 12,231'MD.ONCE ON BOTTOM,WOB BUT NO MOTOR WORK. • ALLOW TO DRILL IT SELF OFF BUT NOT STEADY DRILLING.DIFFICULT TO MAKE GOOD HEADWAY.BREAK THROUGH IN SOFT FORMATION THEN STALL.ATTEMPT TO PICK UP,MAKE IT TO 13,210'MD THEN COULD NOT PULL FURTHER,PULL TO 80K BUT WOULD NOT BREAK FREE.UNABLE TO GO DOWN. • • Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 13 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3 0138P-C:DRILL(2,593,665.00) Project.Prudhoe Bay I Site.PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:O0AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44.25 12/24/1987 00:00©67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 17:00 5.00 DRILL N STUC 13,210.00 PROD1 RELAX PIPE FOR 30 MINUTES WITH 15K OVER.ORDER OUT MINERAL OIL.RECEIVE AUTHORIZATION FROM WTLAND ETL TO PUMP 30 BBLS MINERAL OIL AS THE OPEN HOLE VOLUME IS JUST 24.8 BBLS.IN VERTICAL HOLE WITH 30 BBLS WE ARE 572 PSI OVER BALANCED TO THE FORMATION, WITH 50 BBLS WE ARE 468 PSI OVER BALANCED. 12:30-PULL TO 80K,NO RELEASE.GO TO NEUTRAL WEIGHT OF 38KAND CIRCULATE BOTTOMS UP.ATTEMPT TO PULL FREE SEVERAL TIMES AND GO DOWN WITH NO SUCCESS. 14:00-TURN PUMPS OFF WITH COIL IN NEUTRAL POSITION AND RELAX PIPE AGAIN. 14:30-SLACK OF 16K FROM NEUTRAL POSTION,UNABLE TO GO DOWN.PICK UP TO 88K AND HOLD.UNABLE TO PULL FREE. BRING PUMPS UP TO 3.6 BPM WITH 3475 PSI AND HOLD.TURN PUMPS OFF AND SLACK OFF TO 0.0K,UNABLE TO GO DOWN.PULL UP TO 88K,SLACK OFF TO 14K.WORK PIPE FOR .15 MINUTES NOT ABLE TO BREAK FREE. 14:45-BRING PUMPS ON AND CIRCULATE AT 3.43 BPM WITH 3150 PSI,OUT MM 3.43 BPM. MUD WEIGHT IN AND OUT 8.7 PPG. 15:30-SHUT DOWN PUMPS,STACK WEIGHT AND PULL TO 88K STILL NO MOVEMENT. SLACK COIL TO NEUTRAL. 16:00-BRINGING IN MINERAL OIL AND PUMPING DOWNHOLE.PUMP 30 BBLS AND CHASE WITH MUD.SHUT DOWN WITH 10 BBLS MINERAL OIL OUTSIDE OF COIL AND 20 BBLS MINERAL OIL INSIDE OF COIL.COIL POPPED FREE AFTER 5 MINUTES AT 16:50. PULL UP HOLE SLOWLY WHILE PUMPING AT HIGH RATE TO CLEAR MINERAL OIL FROM PIPE.WILL RECOVER MINERAL OIL AT SURFACE IN PIT FOR USE AS NEEDED. 17:00 - 18:00 1.00 DRILL P PROD1 PULL OUT OF HOLE AT 25 FPM WITH 41K UP WEIGHT.PUMP AT 3.15 BPM WITH 2800 PSI, OUT MICRO MOTION 2.99 BPM.MUD WEIGHT IN 8.7 PPG,OUT 8.4 PPG.MINERAL OIL COMING TO SURFACE.VOLUME 385 BBLS.IA -465 PSI,OA-255 PSI. 18:00 - 21:30 3.50 DRILL P PROD1 CONTINUE TO POH. OPEN EDC AT WINDOW. CONTINUE TO POH AT 100 FPM PUMPING 3.2 BPM WITH 2800 PSI. 31 BBL OF MINERAL OIL RECOVERED IN PIT#1. 21:30 - 22:30 1.00 DRILL P PROD1 HOLD PJSM. BREAK OFF BIT. INSPECT MOTOR. BEARINGS IN MOTOR SEEMED LOOSE. UD MOTOR. CALLED BHI SHOP AND RECEIVED SPECS FOR BEARING PLAY. BEARINGS HAD 2.97 MM OF PLAY. BHIS SHOP SAID IT WAS GOOD UP TO 3.8 MM. PULL CHECK VALVES. FILL HOLE,INSTALL NIGHT CAP,AND CLOSE VALVE CM 13 TO SAFE OUT WELL. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 14 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 22:30 - 00:00 I 1.50 DRILL P PROD1 I HELD SAFETY STAND DOWN TO DISCUSS DROPPED OBJECT INCIDENTS AROUND FIELD. DISCUSSED THE THREE RECENT INCIDENTS FROM PARKER 272,PARKER 273, AND DOYON 16. DISCUSSED 10 PREVIOUS DROPPED OBJECT INCIDENTS. COVERED PRECEDURES FOR BRINGING PIPE AND BHA COMPONENTS TO THE PIPE SHED USING THE PIPE ELEVATOR. DISCUSSED VISUAL INSPECTIONS OF LIFTING EQUIPMENT PRIOR TO MAKING ANY LIFTS,PROPER PLANNING TO MINIMIZE THE AMOUNT OF LIFTS BEING MADE,CONTROLLING EXCLUSION ZONES WHILE LIFTS ARE BEING MADE,TETHERED TOOL KIT INSPECTION AND MAINTENANCE. AND OTHER LIFTING EQUIPMENT INCLUDING BALES AND ELEVATORS. I HELD HAZARD HUNT FOCUSING ON DROPPED OBJECT PREVENTION AND I SECONDARY RETENTION FOR EQUIPMENT THAT IS AT HEIGHTS. DISCUSSED FINDINGS AND WILL PASS ON SAME TO TOWN ONCE 'LIST IS COMPILED AND FINALIZED. •MONITORED WH PRESSURE AND FILLED HOLE EVERY HALF HOUR WHILE HOLDING STAND DOWN AND HAZARD HUNT. THE HOLE TOOK 3 BBL TOTAL DURING THE SHUT-DOWN. 4/5/2013 00:00 - 01:00 1.00 DRILL P PROD1 M/U AND RIH W/4-1/4"LATERAL BHA#8 TO 95' INCLUDING 3-3/4"X 4-1/4"HYCALOG SRRE3611M-B6 BICENTER BIT WITH RAZOR j '.. EDGE CUTTERS,3-1/8"ULTRA XL MOTOR, FLOAT SUB,AGITATOR,HOT,USR,DGS,DPS, EDC,P&C,WEAR SUB,LQC,UQC WITHOUT CHECKS,XO,CTC. 01:00 - 05:15 4.25 DRILL P i PROD1 GET ON WELL. TEST QTS-OK. RIH W/ LATERAL BHA#8 TO 10966'MD AT 100 FPM: MM IN/OUT 0.65/1.2 BPM,W/1500 PSI,MW IN/OUT 8.7/8.71 PPG. CLOSE EDC. TIE IN AT 10860'MD(+23.5'CORRECTION). RIH TO 13231'AT 20 FPM:MM IN/OUT 3.25/3.34 BPM,W/3600 PSI,MW IN/OUT 8.70/8.71 PPG. WORK THROUGH TIGHT HOLE F/13160'TO 13170'. SLACK OFF WEIGHT WENT TO 1200LBS. AFTER BROKE THROUGH AT 13170' S/O WEIGHT 10KLBS. PICKED FROM 13231'TO 13130'WHILE GETTING SLOW PUMP RATES. P/U WEIGHT 38-42 KLBS THROUGH OUT. S/O WEIGHT WHILE RUNNING BACK TO BOTTOM WAS 10-12KLBS Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 15 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00©67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:15 - 06:00 0.75 DRILL P PROD1 DIRECTIONAL DRILL 4-1/4"HOLE F/13231'- 13260'MD. PUMP RATE IN/MM OUT:2.47/2.45 BBL/MIN PUMP PRESSURE:3630 PSI ECD:10.01 PPG WOB:2.1 KLBS MW IN/OUT:8.71 PPG/8.71 PPG !PVT:367 BBL I STARTED BLEEDING IN 53 BBL LUBE PILL TO BRING UP LUBE CONCENTRATION T 6 PPB. HELD SAFETY STAND DOWN WITH DAY CREW FOR DROPS.DISCUSSED RECENT INCIDENTS AND HOW THEY IMPACT OUR OPERATION AND ALSO WHAT WE CAN DO TO MITIGATE THE HAZARD AND OTHER HAZARDS LIKE THEM. LOOK AT HAZARD HUNT ITEMS FROM NIGHT CREWAND INITIATE OUR OWN HAZARD HUNT. ADDRESS FINDINGS FROM ALL HAZARD HUNTS. 06:00 - 09:00 3.00 DRILL P PROD1 DIRECTIONAL DRILL AHEAD TO 13,481'MD AT 66 FPH.PUMP AT 2.4 BPM WITH 3630 PSI, OUT MM 2.4 BPM.WOB 1-2K.ECD 10.0 PPG. UP WEIGHT 38K.MUD WEIGHT IN AND OUT 8.7 PPG.VOLUME 381 BBLS.GOOD MOTORWORK.LOKING FOR BREAK OUT FROM SHALES INTO SAND. 09:00 - 11:30 2.50 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD TO TD OF 13,560'MD AT 31 FPH.UN-EVEN DRILLING AT TIMES,PULLING OFF BOTTOM FREQUENTLY. PUMP AT 2.4 BPM WITH 3900 PSI AND 3770 PSI FREE SPIN.OUT MICRO MOTION 2.38 BPM.DOWN WEIGHT-9K,WOB 5.5K.ECD 9.98 PPG WITH A MUD WEIGHT IN AND OUT OF 8.8 PPG.VOLUME 299 BBLS WITH PIT ONE OFF LINE.IA-300 PSI,OA-45 PSI. 11:30 - 13:30 2.00 DRILL P PROD1 PERFORM WIPER FROM TD TO WINDOW AT 25 FPM WITH 42K UP WEIGHT.PUMP AT 2.44 BPM WITH 3300 PSI,OUT MM 2.28 BPM. VOLUME 287.SMALL AMOUNT OF MOTOR WORK IN A FEW PLACES BUT NO OVER PULLS.SLOW DOWN AND PUMP MINIMUM RATE THROUGH BILLET. LOG TIE-IN WITH A PLUS 8'CORRECTION. 13:30 - 15:15 1.75 DRILL P PROD1 RUN IN HOLE AT 26 FPM WITH 17K DOWN WEIGHT.PUMP AT 2.45 BPM WITH 3420 PSI. MOTOR WORK AT TIMES BUT NOT TAKING WEIGHT.RUN TO BOTTOM WITH NO ISSUES OR TIGHT SPOTS AND TAG UP AT 13,560'MD. SET WEIGHT,SEE MOTOR WORK AND PICK UP OFF BOTTOM. 15:15 - 16:30 1.25 DRILL P PROD1 PULL OUT OF HOLE AT 35 FPM WITH 42K UP WEIGHT LAYING IN LINER RUNNING PILL. PUMP AT 0.46 BPM WITH 1300 PSI.OUT AT 0.23 BPM.PULL TO WNDOWAT 10,966'MD. 16:30 - 19:00 2.50 DRILL P PROD1 DISPLACE WELL OVER TO VISCOSIFIED BRINE AT 2.0 BPM WITH 1900 PSI.WORK PIPE BETWEEN 10,625'MD AND 10,900'MD UNTIL NEW FLUID IS AT SURFACE. Printed 4/26/2013 3:49:47PM • North America-ALASKA-BP Page 16 of 16 Operation Summary Report Common Well Name:E-25 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:3/26/2013 End Date:4/5/2013 X3-0138P-C:DRILL(2,593,865.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:00 - 21:30 2.50 DRILL P PROD1 POH W/BHA#8 F/10677'TO 95'AT 68 FPM. PUMP RATE/MM OUT:2.51/2.13 BPM PUMP PRESSURE:2500 PSI MW IN/OUT:8.44/8.44 PPG 21:30 - 23:00 1.50 DRILL P PROD1 HOLD PJSM AND L/D BHA#8. 23:00 - 00:00 1.00 DRILL P PROD1 HOLD PJSM AND BEGIN SLACK MANAGEMENT FOR LINER RUN. Printed 4/26/2013 3:49:47PM North America-ALASKA-BP Page 1,.> Operation Summary Report Common Well Name:E-25 AFE No Event Type:COM-ONSHORE(CON) ' Start Date:4/6/2013 End Date:4/10/2013 IX3-0138P-C:DRILL(1,708,951.00) Project:Prudhoe Bay Site:PB E Pad — Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) (usft) 4/6/2013 00:00 - 02:30 2.50 CASING P RUNPRD PUMP SLACK FORWARD WITH WATER. RECOVER 200'ELINE OF 260'ESTIMATED.MU AND TEST BAKER TT CONNECTOR.PUMP 3/4" BALL. 02:30 - 12:30 10.00 CASING P RUNPRD HOLD PJSM WITH ALL CREWS TO DISCUSS PICKING UP LINER.MU 34 JTS 2-7/8"X 57 JTS 3-1/4"X 28 JTS 3-1/2". FILL PIPE EVERY 20 STANDS.DRIFT FIRST FIVE CONNECTIONS TO ENSURE CORRECT M/U TORQUE.RUN IN HOLE PER TALLY RUNNING ORDER TO 3848.14. 12:30 - 13:00 0.50 CASING P RUNPRD STAB INJECTOR AND MAKE UP.MAKE UP QUICK TEST SUB AND TEST TO 250 PSI LOW, 3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS. 13:00 - 14:30 1.50 CASING P RUNPRD RIH IN HOLE WITH LINER ON COIL TO 10,655' MD AND CORRECT PLUS 16 FEET TO 10,671' MD.RUN AT 80 FPM PUMPING AT 0.30 BPM WITH 250 PSI.MUD WEIGHT IN AND OUT 8.4 PPG. 14:30 - 16:00 1.50 CASING P RUNPRD RUN IN HOLE WITH LINER ON COIL TO.PUMP AT 0.30 BPM WITH 280 PSI.CROSS SECOND FLAG AT A PLUS 0.5'.WORK LINER DOWN TO 13,553'MD. 16:00 - 16:45 0.15 CASING P RUNPRD ATTEMPT TO WORK PIPE TO BOTTOM UNABLE TO GET BACK DOWN AND LOOSE GROUND TO 13,522'MD.SMALL HANG UPS AT • 13,045',13,205',13,239'AND 13,464'.SET DOWNS AT 5 AND 10K,UP WEIGHTS AT 44 TO 50K. AT 13,522'PULL UP TO 13,495'MD AT 49K. RUN IN AT 60 FPM TO 13,510 SET DOWN 10K. PULL UP TO 13,508',RUN BACK IN AND SET DOWN 15K AT 13,523.BRING PUMPS UP TO 1.35 BPM WITH 730 PSI,NO PIPE MOVEMENT. DROP PUMPS BACK TO 0.4 BPM WITH 250 PSI.PULL TO 13,505'WITH 47K.RUN BACK IN TO 13,523'.MAKE SEVERAL PASSES. ATTEMPT TO WASH DOWN AT 1.76 BPM WITH 1200 PSI.NO GO.ATTEMPT SEVERAL TIMES WITH PUMPS OFF STILL NO GO.PULL UP TO 13,500'RUN BACK TO 13,512'MD AND PUMP MINERAL OIL 16:45 - 19:00 2.25 CASING P RUNPRD CIRCULATE 30 BBLS MINERAL OIL AROUND COILAT 1.64 BPM WITH 1080 PSI. CONTINUE TO WORK LINER DOWN TO 13526'. DISCUSSED WITH TOWN ENGINEER AND GEO.DECISION MADE TO LAND LINER AT 13526'. GET GOOD P/U WEIGHT 50KLBS PRIOR TO DROPPING BALL. 19:00 - 20:00 1.00 CASING P RUNPRD PUMP 5/8"BALL,BALL SEATED AFTER 56 BBL PUMPED.AND RELEASE FROM LINER WITH 3700PSI. PU TO CONFIRM RELEASE FROM LINER. NEW PU WEIGHT 40KLBS. 20:00 - 21:30 1.50 CEMT P RUNPRD RU CEMENTERS,CIRCULATE HOLE TO KCL. Printed 4/26/2013 3:50:27PM North America-ALASKA-BP Page 2 of 5 Operation Summary Report Common Well Name:E-25 AFE No Event Type:COM-ONSHORE(CON) Start Date:4/6/2013 End Date:4/10/2013 'X3-0138P-C:DRILL(1,708,951.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/me:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 @67.80usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase i Description of Operations (hr) (usft) 21:30 - 23:15 1.75 CEMT P RUNPRD PJSM,FEED SLB CEMENTERS 20 BBL OF KCL. PRIME CEMENT TRUCK PRESSURE TEST SLB CEMENT LINES 250 PSI LOW AND 6000 PSI HIGH-GOOD. BLOW BACK CEMENT LINES. 23:15 - 00:00 0.75 CEMT P RUNPRD BATCH MIX 39 BBLS CLASS G 15.8 PPG SLURRY. PUMP 5 BBLS KCL. 39 BBLS CEMENT IN TO REEL WITH CEMENT PUMPERS. TRANSPORT SAMPLE TO SLB LAB. BLOW BACK LINES. BEGIN DISPLACEMENT WITH RIG PUMP,WITH LUBED/SLICK KCL.REDUCE RATE AT 58 BBLS AS CEMENT REACHES SELRT. 4/7/2013 00:00 - 01:00 1.00 CEMT P RUNPRD DISPLACING CEMENT WITH RIG PUMP AT AVG. 1.67 BPM IN/1.61 BPM OUT. CEMENT OUT OF SHOE AT 86.6 BBLS PUMPED. SHUT DN PUMP AT 95.8 BBLS. PU TO UP WT +13'. SET BACK DN 10K#,9-10'HIGHER. PRESSURE COIL TO LAUNCH PEEWEE DART. PU AND PUMP 5 BBLS SIDE EXHAUST 'VOLUME. OPEN BAKER CHOKE. SET DOWN 10 K. CLOSE BAKER CHOKE. PRESSURE !COIL TO 3800 PSI TO LAUNCH WIPER PLUG. DISPLACE CEMENT AT 1850 PSI AT 1.50 IN/1.44 OUT BPM. LAND PLUG WITH 123.6 BBLS PUMPED(INCLUDES EXHAUST VOL)OR 27.8 BBLS DISP FROM SELRT TOOL. PRESSURE PLUG TO 2390 PSI. BLEED OFF. FLOATS HOLDING. CIP AT 0100 HRS. PRESSURE COIL TO 500 PSI. UNSTING. NO BLEED OFF. INCREASE RATE TO 2.48 BPM. FULL RTNS. WASH LINER TOP AREA. ESTIMATE 36.3 BBL BEHIND LINER. 01:00 - 03:00 2.00 CEMT P RUNPRD HOLD PJSM.CIRCULATE OUT OF HOLE AT 1.07 BPM. 0.53 BPM RTNS. 03:00 - 04:00 1.00 CEMT P RUNPRD AT SURFACE. HOLD PJSM. FLOW CHECK WELL.GET OFF WELL. UNSTAB COIL. LD SELRT AND BHA TOOLS. 04:00 - 05:00 1.00 CEMT P RUNPRD RIG DOWN FLOOR TOOLS.RU TO PU UP MEMORY LOG TOOLS AND CLEAN OUT BHA. 05:00 - 10:00 5.00 EVAL P OTHCMP MU SLB GR/CNL MEMORY TOOLS AND 2.3" CLEAN OUT BHA. RUN 34 JOINTS 1-1/4"CSH AND 2 HTS 2-1/16"CSH W/NEW SLIMHOLE SWIVEL. SLB LAB TO REPORT 500 PSI COMP. STRENGTH. 10:00 - 10:30 0.50 EVAL P OTHCMP I STAB INJECTOR AND MU QUICK TEST SUB. TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 10:30 - 12:00 1.50 EVAL P OTHCMP RUN IN HOLE WITH LOGGING TOOLS TO 8,800'MD. 12:00 - 14:30 2.50 EVAL P OTHCMP LOG DOWN AT 30 FPM PUMPING AT 1.4 BPM WITH 1790 PSI. PAG PBTD AT 13465' UNCORRECTED. 14:30 - 15:30 1.00 EVAL P OTHCMP LOG UP AT 60 FPM PUMPING AT 0.6 BPM WITH 595 PSI WHILE LAYING IN PERF PILL. 15:30 - 15:35 0.08 EVAL P OTHCMP STOP AND PAINT BLUE FLAG AT 10,190 END OF PIPE. Printed 4/26/2013 3:50:27PM North Amenca`=" d` Pa e of Operation Summary Report Common Well Name:E-25 AFE No Event Type:COM-ONSHORE(CON) Start Date:4/6/2013 End Date:4/10/2013 1X3-0138P-C:DRILL(1,708,951.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UVVI: Active datum:44:25 12/24/1987 00:00 t 67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (usft) 15:35 - 16:00 0.42 EVAL P OTHCMP LOG UP AT 60 FPM PUMPING AT 0.6 BPM WITH 595 PSI TO 8,800'MD. 16:00 - 17:30 1.50 EVAL P OTHCMP POOH WITH LOGGING TOOLS TO BHAAT 1,169'MD.PUMP AT 1.45 BPM WITH 1670 PSI, OUT MM 0.95 BPM.PULL AT 92 FPM WITH 26K UP WEIGHT.MUD WEIGHT IN AND OUT 8.5 PPG.VOLUME 324 BBLS. 17:30 - 17:45 0.25 EVAL P OTHCMP HOLD PJSM WHILE FLOW CHECKING WELL- STATIC. 17:45 - 21:30 3.75 EVAL P OTHCMP LAY DOWN LOGGING BHA INCLUDING CS HYDRIL PIPE FROM 1,169. PJSM BRING PERF GUNS INTO THE PIPE SHED. DOWNLOAD MEMORY LOG DATA:TOOL FAILED AT 11,000'GOING IN THE HOLE AND GAME BACK ON AT 9,000'COMING OUT OF THE HOLE. 21:30 - 22:00 0.50 EVAL P OTHCMP FUNCTION TEST BOPS. 22:00 - 00:00 2.00 EVAL P OTHCMP PERFORM LINER LAP TEST.TEST 250 PSI LOW/2400 PSI HIGH. PRESSURE HELD GOOD ON 250 PSI LOW TEST. INITIAL TEST PRESSURE ON HIGH PRESSURE TEST-2480 PSI,AFTER 15 MIN- 2321 PSI,AFTER 30 MIN-2188 PSI.TEST FAILED. WILL SET LINER PACKER TOP POST RIG. 4/8/2013 00:00 - 02:00 2.00 EVAL N DFAL 13,491.00 OTHCMP M/U AND RIH W/CLEANOUT/LOGGING BHA# 10 TO 1187'. 02:00 - 04:30 2.50 EVAL N DFAL 13,491.00 OTHCMP GET ON WELL,TEST QTS-OK,AND RIH W/ BHA#10 TO 8800'AT 90 FPM,PUMPING 0.53 BPM,MM OUT:1.01 BPM,MW IN/OUT 8.39/8.49 PPG. 04:30 - 07:00 2.50 EVAL N DFAL 13,491.00 OTHCMP LOG DOWN F/8800'MD AT 29 FPM PUMPING 1.06 BPM,MM OUT:1.21 BPM,W/1055 PSI, ! ' MW IN/OUT:8.40/8.47.TAGGED PBTD AT 13,461'MD(UNCORRECTED)WITH 3.5K DOWN. 07:00 - 08:30 1.50 EVAL N DFAL 13,491.00 OTHCMP LOG UP TO 8,800'MD.LAY IN PERF PILL. STOP AT 11,200'MD AND PAINT END OF PIPE FLAG.LOG AT 60 FPM PUMPING AT 1.0 BPM WITH 1060 PSI. 08:30 - 10:00 1.50 EVAL N DFAL 13,491.00 OTHCMP POOH AT 95 FPM WITH 32K UP WEIGHT. PUMP AT 0.7 BPM WITH 575 PSI,OUT MICRO MOTION 0.3 BPM.MUD WEIGHT IN AND OUT 8.5 PPG.VOLUME 324 BBLS. 10:00 - 12:30 2.50 EVAL N DFAL 13,491.00 OTHCMP STOP AT BHAAND FLOW CHECK WELL WHILE HOLDING PRE JOB SAFETY MEETING- , STATIC.POOH LAYING DOWN CS HYDRIL PIPE AND LOGGING ASSEMBLY,BHA#10. 12:30 - 13:30 1.00 PERFOB P OTHCMP CLEAR AND CLEAN FLOOR IN PREPARATION FOR RUNNING PERFORATING ASSEMBLY. 13:30 - 14:30 1.00 PERFOB P OTHCMP HOLD PRE JOB SAFETY MEETING FOR RUNNING PERFORATING ASSEMBLY.LAY OUT GUNS AND RIG UP TO RUN GUNS. 14:30 - 18:45 4.25 PERFOB P OTHCMP MAKE UP PERFORATION ASSEMBLY,BHA#11 TO 2,090'MD. STAB COIL.GET ON WELL. PRESSURE TEST QTS-OK. Printed 4/26/2013 3:50:27PM North America-ALASKA-BP Page 4 of 5 Operation Summary Report Common Well Name:E-25 AFE No Event Type:COM-ONSHORE(CON) Start Date:4/6/2013 End Date:4/10/2013 [X3-0138P-C:DRILL(1,708,951.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00©67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 18:45 - 23:00 4.25 PERFOB P OTHCMP RUN IN HOLE. CHECK FLAG. TAG PBTD. CORRECT TO LOGGED PBTD OF 13491'. HOLD PJSM WITH NORDIC CREW. PU TO BTM SHOT DEPTH+5'. PERFORM ACTIVATION SEQUENCE. PICK UP SLOWLY TO SHOT DEPTH. GOOD INDICATION OF GUNS FIRING. 23:00 - 00:00 1.00 PERFOB P OTHCMP POH F/13482'-11175'MD. HOLD 300 PSI BACK PRESSURE WHILE POH. 4/9/2013 00:00 - 02:30 2.50 PERFOB P OTHCMP CONTINUE TO POH W/PERF BHA F/11175'TO 2100'MD HOLDING 300 PSI BACK PRESSURE ON WELLHEAD. 02:30 - 09:00 6.50 PERFOB P OTHCMP HOLD PJSM.OPEN CHOKE.UNSTAB COIL. BREAK AND L/D PERF BHA F/2100'TO SURFACE. L/A.ALL CSH AND PERF GUNS. DRAIN PERF GUNS IN PIPE SHED. 09:00 - 10:00 1.00 PERFOB P OTHCMP HOLD PJSM AND RIH W/20 STANDS OF 1-1/4" CS HYDRIL F/DERRICK. 10:00 - 11:00 1.00 PERFOB P OTHCMP HOLD PJSM AND OFFLOAD 92 PERF GUNS FROM PIPE SHED. 11:00 - 12:00 1.00 PERFOB P OTHCMP POH AND UD 20 STANDS(40 JOINTS)OF 1-1/4"CS HYDRIL. 12:00 - 12:30 0.50 PERFOB P OTHCMP ''PJSM AND OFFLOAD CS HYDRIL FROM PIPE SHED. 12:30 - 14:30 2.00 BOPSUR P POST HOLD PJSM PICK UP INJECTOR. M/U NOZZLE BHA. DISCOVER LEAK ON INJECTOR HYDRAULIC HARDLINE. 14:30 - 16:30 2.00 BOPSUR N SFAL 13,560.00 POST REPLACE HYDRAULIC HARDLINE ON . INJECTOR AND PRESSURE TEST SAME. 16:30 - 18:30 2.00 BOPSUR P POST HEAT 60 BBLS DIESEL TO 80 DEG F. TRANSFER TO VAC TRUCK PUMP 60 BBLS DIESEL OFF VAC TRUCK. FREEZE PROTECT 5-1/2"TBG FROM 2500' WHILE POOH AT 100%. PUMP EXCESS TO TIGER TANK FLOW CHECK GET OFF WELL. SHUT IN SWAB VALVE. 18:30 - 21:00 2.50 DEMOB P POST SPOT N2 TRUCK HOLD PJSM. R/U AND PRESSURE TEST HARDLINE TO 300/3500 PSI LOW/HIGH. SET PUMP TRIPS TO 3200 PSI AND TEST SAME. 21:00 - 23:00 2.00 DEMOB P POST HOLD PJSM AND BLOW DOWN COIL WITH N2. PUMPED 540 GAL OF N2(34936 SCF). 23:00 - 00:00 1.00 WHSUR P POST HOLD PJSM WITH CH2MHILL VALVE CREW. GREASE TREE. 4/10/2013 00:00 - 02:30 2.50 WHSUR P POST , HOLD PJSM WITH CH2MHILL VALVE CREW. R/U LUBRICATOR AND PRESSURE TEST SAME 250/3500 PSI-OK. RUN AND SET CAMERON TYPE J BPV IN PROFILE. RD CH2MHILL. 02:30 - 05:00 2.50 DEMOB P POST M/U GRAPPLE TO COIL AND PULL TEST. SECURE COIL TO REEL. REMOVE PACKOFF FROM INJECTOR. R/D GOOSE NECK FROM INJECTOR. Printed 4/26/2013 3:50:27PM • —1#1"1 t.• , v" ^ mm ^ate , ng4 rn,..n O menca BP - „ age'S of 5< Operation Summary Report Common Well Name:E-25 AFE No Event Type:COM-ONSHORE(CON) I Start Date:4/6/2013 I End Date:4/10/2013 X3-0138P-C:DRILL(1,708,951.00) Project:Prudhoe Bay Site:PB E Pad Rig Name/No.:NORDIC 2 Spud Date/Time:12/24/1987 12:00:00AM Rig Release:4/10/2013 Rig Contractor:NORDIC CALISTA UWI: Active datum:44:25 12/24/1987 00:00 c67.80usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:00 - 06:00 1.00 BOPSUR P POST CLOSE MASTER AND SWAB VALVES. BLOW DOWN BOPS TAKING MEOH RETURNS TO TIGER TANK. LEAK TIGHT TEST TREE VALVES. OPEN BOPS AND CHANGE RAMS F/2-3/8" COMBIS TO 2"COMBIS. REDRESS SHEAR RAMS. 06:30 - 11:00 4.50 BOPSUR P POST CONTINUE TO INSPECT AND CHANGE OUT BOPS COMPONENTS FOR SWITCH FROM 2-3/8"TO 2". REMOVE AND LAYDOWN LUBRICATOR. CONTINUE TO RD AND MOVE MISC EQUIPMENT TOG PAD. TROUBLE SHOOT REEL HOUSE BRIDGE CRANE WEIGHT SYSTEM. WORK ON PUMP#1. CONTINUE WORK ON INJECTOR AND GOOSENECK PIPE SIZE CONVERSION. WARM MOVING SYSTEM. 11:00 - 13:00 2.00 BOPSUR P POST NU AND TEST TREE CAP TO 300 AND 3500 PSI. CHART TEST. MPASSED. 13:00 - 13:30 0.50 DEMOB P POST FINAL WALK AROUND RIG. HOLD PJSM WITH ENTIRE CREW TO DISCUSS MOVE OFF WELL. REVIEW COMMS. ASSIGN SPOTTERS. REVIEW CHECK LIST WITH NORDIC SUPT. RIG RELEASED AT 1330 HRS ON 4-10-13. 06:00 - 06:30 0.50 BOPSUR P I POST CREW CHANGE. DISCUSS CURRENT OPS AND RIG STATUS. MAKE EQUIPMENT CHECKS AND ALL ROUND PJSM TO CONTINUE WORK OB BOPS. Printed 4/26/2013 3:50:27PM E-25A, Well History (Post Rig Sidetrack) Date Summary 04/14/13 T/I/0=0/0/0 Conducted PJSM. Barriers=Master&SSV. Start barriers list. Opened all valves, ensured 0 psi. on tree.Torqued all flanges to specs. (see log) Performed LTT on master&SSV, pass. Removed tree cap, attached lubricator, PT'd 250/Iow..3500/high..5 min. each. pass. Pulled 6"CIW"J" BPV#401 thru tree using 1-2'ext.Tagged @ 112". C/O tools, attached lubricator w/same equip., PT'd lubricator 250/Iow..3500/high against Master&SSV..pass. Set 6" CIW"J"TWC. Bled tree to 0 psi., shut barriers, C/O tools, attached lubricator, Shell tested tree 250/Iow..5000/high..5 min.each.. pass. (see chart in TRP folder) Pulled TWC. Post Nordic 2.job complete. 04/18/13 T/I/0=0/0/0.Temp.= SI.T FL(Slickline request).AL shut-in @ casing valve.ALP=820 psi.T FL @ 390" (9 bbls). SV,WV= C. SSV, MV=0. IA&OA=OTG. NOVP. 1210 hrs. 04/20/13 T/I/O=0/0/0 Assisted slickline MITT PASSED to 2000 psi. (Post CTD) Pumped 15 bbls crude followed by 1 bbls of meth down Tbg while slickline RIH w/brush. SSL set LTP and plug. Pumped 4.1 bbls of 50* crude to reach test psi. 1st 15 mins Tbg lost 35 psi.2nd 15 min Tbg lost 15 psi for a total loss of 50 psi in a 30 min test. Bleed back 3.5 bbls to final WHP-45/0/0. SSL on well at departure. 04/20/13 BRUSH TBG W/5-1/2" BLB&4.40"G. RING TO DEPLOY. SLV AT 9,783' SLM (9,812'MD) LRS PUMPED 16 BBLS OF CRUDE DOWN TBG. BRUSH DEPLOY. SLV WI 3.805"G. RING,4-1/2" BLB&2.80" G. RING AT 9,783'SLM (9,812' MD). SET 5-1/2"WFD ER PACKER ON DEPLOY. SLV(oal 28.18', max od 4.50") ,TOP OF PKR AT 9,756' SLM (9785' MD). SET 5-1/2" ER PKR TEST TOOL AT 9,755' SLM. LRS PERFORMED PASSING MIT-T TO 2,000#(see Irs log). PULLED 5-1/2" ER PKR TEST TOOL FROM 9,755' SLM. SET 5-1/2"SLIP STOP C-SUB AT 5,870'SLM. PULLED STA.#4 RM- DGLV FROM 5,714' SLM (5,732'MD). PULLED STA.#5 RM-DGLV FROM 2,977'SLM (3,001'MD). Page 1 of 1 M BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB E Pad E-25 -Slot 25 E-25APB1 Survey: MWD Survey Report - Geographic 16 April, 2013 Øbp Mill BAKU! HUGHES Survey Report-Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Well: E-25 North Reference: True Wellbore: E-25APB1 Survey Calculation Method: Minimum Curvature Design: E-25APB1 Database: EDM R5K-Alaska PROD-ANCP1 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 PB E Pad,TR-11-14 Site Position: Northing: 5,973,160.88 usft Latitude: 70°19'59.134 N From: Map Easting: 662,538.97 usft Longitude: 148°40'53.05 W Position Uncertainty: 0.00 usft Slot Radius: 0.000 in Grid Convergence: 1.24° I Well E-25 API No. 500292177300 I Well Position +N/-S 0.00 usft Northing: 5,975,344.00 usft Latitude: 70°20'20.184 N +E/-W 0.00 usft Easting: 664,484.00 usft Longitude: 148°39'54.87 W Position Uncertainty 0.00 usft Wellhead Elevation: usft Ground Level: 32.00 usft Wellbore E-25APB1 API no. 500292177370 Magnetics Model Name Sample Date Declination Dip Angle Field Strength O (°l (nT) BGGM2012 3/25/2013 20.52 81.05 57,630 Design E-25APB1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 10,900.02 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (usft) (usft) (usft) (°) 37.80 0.00 0.00 226.90 Survey Program Date: 4/8/2013 From To (usft) (usft) Survey(Wellbore) Tool Name Description 100.02 10,900.02 2:Schlumberger GCT multishot(E-25) GCT-MS Schlumberger GCT multishot 10,957.00 13,041.00 MIND(E-25APB1) MIND MIND-Standard 4/16/2013 8:32:04AM Page 2 COMPASS 5000.1 Build 61 Midi BAKER 11UGs Survey Report-Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling n Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling n Well: E-25 North Reference: True Wellbore: E-25APB1 Survey Calculation Method: Minimum Curvature Design: E-25APB1 Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map I Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 10,900.02 96.77 212.20 9,029.64 -3,339.28 -2,572.02 5,971,949.34 661,986.02 70°19'47.338 N 148°41'9.96 W TIP 10,957.00 96.94 218.00 9,022.83 -3,385.54 -2,604.54 5,971,902.37 661,954.53 70°19'46.883 N 148°41'10.91 W KOP 10,980.92 94.11 218.00 9,020.53 -3,404.30 -2,619.19 5,971,883.30 661,940.29 70°19'46.698 N 148°41'11.34 W 11,010.77 94.48 221.00 9,018.29 -3,427.27 -2,638.12 5,971,859.92 661,921.87 70°19'46.472 N 148°41'11.89 W 11,040.80 91.93 223.00 9,016.61 -3,449.55 -2,658.18 5,971,837.21 661,902.31 70°19'46.253 N 148°41'12.48 W 11,070.64 91.69 226.00 9,015.67 -3,470.82 -2,679.09 5,971,815.49 661,881.88 70°19'46.044 N 148°41'13.09 W j 11,100.63 91.60 229.50 9,014.81 -3,490.97 -2,701.27 5,971,794.86 661,860.14 70°19'45.846 N 148°41'13.73 W 11,130.97 91.54 233.53 9,013.98 -3,509.84 -2,725.01 5,971,775.47 661,836.82 70°19'45.660 N 148°41'14.43 W 11,163.19 90.46 237.95 9,013.42 -3,527.97 -2,751.63 5,971,756.76 661,810.61 70°19'45.482 N 148°41'15.20 W 11,190.85 90.06 243.31 9,013.29 -3,541.53 -2,775.72 5,971,742.68 661,786.82 70°19'45.348 N 148°41'15.91 W 11,220.89 88.96 248.40 9,013.55 -3,553.82 -2,803.12 5,971,729.80 661,759.70 70°19'45.227 N 148°41'16.71 W 11,250.81 88.62 253.60 9,014.18 -3,563.55 -2,831.40 5,971,719.45 661,731.65 70°19'45.131 N 148°41'17.53 W 11,280.63 89.23 259.07 9,014.74 -3,570.59 -2,860.36 5,971,711.77 661,702.85 70°19'45.062 N 148°41'18.38 W 11,310.71 89.63 263.93 9,015.04 -3,575.04 -2,890.10 5,971,706.68 661,673.22 70°19'45.018 N 148°41'19.25 W 11,340.67 89.14 268.88 9,015.36 -3,576.91 -2,919.99 5,971,704.14 661,643.38 70°19'45.000 N 148°41'20.12 W 11,370.75 89.23 274.53 9,015.79 -3,576.02 -2,950.04 5,971,704.38 661,613.32 70°19'45.008 N 148°41'20.99 W 11,400.97 89.54 279.47 9,016.11 -3,572.34 -2,980.02 5,971,707.40 661,583.26 70°19'45.044 N 148°41'21.87 W 11,430.93 90.06 284.11 9,016.22 -3,566.22 -3,009.34 5,971,712.88 661,553.82 70°19'45.105 N 148°41'22.73 W 11,461.15 91.72 289.74 9,015.75 -3,557.43 -3,038.24 5,971,721.03 661,524.74 70°19'45.191 N 148°41'23.57 W 11,490.87 91.57 294.96 9,014.90 -3,546.13 -3,065.70 5,971,731.72 661,497.03 70°19'45.302 N 148°41'24.37 W 11,520.97 90.21 293.88 9,014.43 -3,533.69 -3,093.11 5,971,743.56 661,469.36 70°19'45.424 N 148°41'25.17W1 11,550.89 91.35 291.23 9,014.02 -3,522.22 -3,120.73 5,971,754.42 661,441.49 70°19'45.537 N 148°41'25.98 W 11,580.65 89.91 288.12 9,013.69 -3,512.20 -3,148.75 5,971,763.82 661,413.27 70°19'45.635 N 148°41'26.80 W!. 11,610.69 89.82 284.99 9,013.76 -3,503.64 -3,177.54 5,971,771.75 661,384.30 70°19'45.719 N 148°41'27.64 W' 11,640.63 89.57 282.21 9,013.92 -3,496.60 -3,206.64 5,971,778.14 661,355.05 70°19'45.788 N 148°41'28.49 W 11,670.91 88.53 277.52 9,014.43 -3,491.42 -3,236.46 5,971,782.67 661,325.13 70°19'45.839 N 148°41'29.36 W1 11,700.30 89.66 274.52 9,014.89 -3,488.33 -3,265.68 5,971,785.11 661,295.85 70°19'45.869 N 148°41'30.21 W I 11,730.90 90.28 270.13 9,014.91 -3,487.09 -3,296.24 5,971,785.68 661,265.27 70°19'45.882 N 148°41'31.10 W 11,760.83 88.41 267.59 9,015.25 -3,487.69 -3,326.16 5,971,784.43 661,235.37 70°19'45.876 N 148°41'31.98 W1 11,790.63 89.05 263.77 9,015.91 -3,489.93 -3,355.87 5,971,781.54 661,205.73 70°19'45.853 N 148°41'32.84 W 11,820.76 88.25 260.19 9,016.62 -3,494.13 -3,385.69 5,971,776.68 661,176.01 70°19'45.812 N 148°41'33.71 W 11,850.88 89.36 257.05 9,017.25 -3,500.08 -3,415.20 5,971,770.10 661,146.63 70°19'45.753 N 148°41'34.58 W' 11,882.11 92.33 254.26 9,016.79 -3,507.81 -3,445.45 5,971,761.70 661,116.56 70°19'45.677 N 148°41'35.46 W 11,911.03 89.45 251.23 9,016.34 -3,516.39 -3,473.06 5,971,752.52 661,089.15 70°19'45.593 N 148°41'36.27 W 11,940.62 91.84 249.29 9,016.00 -3,526.38 -3,500.91 5,971,741.92 661,061.53 70°19'45.494 N 148°41'37.08 W 11,971.07 89.48 247.07 9,015.65 -3,537.69 -3,529.17 5,971,729.99 661,033.52 70°19'45.383 N 148°41'37.90 W 11,998.42 90.06 244.68 9,015.76 -3,548.87 -3,554.13 5,971,718.27 661,008.82 70°19'45.273 N 148°41'38.63 W 12,031.17 90.89 243.40 9,015.49 -3,563.21 -3,583.57 5,971,703.29 660,979.70 70°19'45.132 N 148°41'39.49 W 12,060.41 91.94 243.65 9,014.77 -3,576.24 -3,609.74 5,971,689.69 660,953.83 70°19'45.003 N 148°41'40.25 W 12,090.69 90.28 245.17 9,014.18 -3,589.31 -3,637.04 5,971,676.02 660,926.82 70°19'44.875 N 148°41'41.05 W 12,120.45 87.24 246.01 9,014.83 -3,601.61 -3,664.13 5,971,663.13 660,900.01 70°19'44.754 N 148°41'41.84 W 12,150.70 85.79 243.21 9,016.67 -3,614.55 -3,691.40 5,971,649.60 660,873.03 70°19'44.626 N 148°41'42.64 W 12,188.73 87.26 238.54 9,018.97 -3,633.02 -3,724.55 5,971,630.40 660,840.29 70°19'44.444 N 148°41'43.61 W 12,215.83 89.63 236.36 9,019.71 -3,647.60 -3,747.39 5,971,615.33 660,817.79 70°19'44.301 N 148°41'44.27 W 12,241.01 87.30 232.76 9,020.38 -3,662.19 -3,767.89 5,971,600.30 660,797.61 70°19'44.157 N 148°41'44.87 W 12,270.77 88.65 228.69 9,021.43 -3,681.01 -3,790.91 5,971,580.97 660,775.01 70°19'43.972 N 148°41'45.54 W 12,301.13 88.93 224.50 9,022.08 -3,701.86 -3,812.95 5,971,559.64 660,753.43 70°19'43.767 N 148°41'46.19 W 12,330.63 89.79 221.58 9,022.41 -3,723.42 -3,833.08 5,971,537.65 660,733.78 70°19'43.555 N 148°41'46.77 W 12,360.85 90.21 225.78 9,022.41 -3,745.27 -3,853.95 5,971,515.35 660,713.40 70°19'43.340 N 148°41'47.38 W 12,393.61 90.49 230.97 9,022.21 -3,767.03 -3,878.43 5,971,493.07 660,689.40 70°19'43.126 N 148°41'48.10 W 12,421.03 89.82 235.80 9,022.13 -3,783.37 -3,900.43 5,971,476.24 660,667.77 70°19'42.965 N 148°41'48.74 W 12,450.98 90.98 240.20 9,021.92 -3,799.24 -3,925.82 5,971,459.82 660,642.73 70°19'42.809 N 148°41'49.48 W 12,483.21 91.38 245.03 9,021.26 -3,814.06 -3,954.43 5,971,444.38 660,614.46 70°19'42.663 N 148°41'50.31 W 4/16/2013 8:32.04AM Page 3 COMPASS 5000.1 Build 61 RIM BilYQNES Survey Report-Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 Q 67.80usft(generic drilling ri Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Well: E-25 North Reference: True Wellbore: E-25APB1 Survey Calculation Method: Minimum Curvature Design: E-25APB1 Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 12,510.41 90.74 248.92 9,020.75 -3,824.69 -3,979.45 5,971,433.20 660,589.68 70°19'42.558 N 148°41'51.04 W 12,540.55 88.53 252.13 9,020.95 -3,834.74 -4,007.86 5,971,422.54 660,561.50 70°19'42.459 N 148°41'51.87 W 12,570.47 87.98 250.28 9,021.86 -3,844.37 -4,036.17 5,971,412.28 660,533.41 70°19'42.364 N 148°41'52.70 W 12,600.39 89.26 247.23 9,022.58 -3,855.21 -4,064.04 5,971,400.84 660,505.78 70°19'42.257 N 148°41'53.51 W 12,630.41 88.28 244.02 9,023.22 -3,867.60 -4,091.38 5,971,387.86 660,478.73 70°19'42.135 N 148°41'54.31 W 12,660.36 90.52 242.07 9,023.54 -3,881.17 -4,118.07 5,971,373.70 660,452.34 70°19'42.002 N 148°41'55.09 W 12,690.36 89.02 237.95 9,023.66 -3,896.16 -4,144.05 5,971,358.14 660,426.70 70°19'41.854 N 148°41'55.85 W 12,720.21 90.31 233.92 9,023.83 -3,912.88 -4,168.77 5,971,340.89 660,402.35 70°19'41.690 N 148°41'56.57 W 12,748.13 91.05 231.67 9,023.50 -3,929.76 -4,191.00 5,971,323.53 660,380.50 70°19'41.524 N 148°41'57.22 W 12,777.90 92.03 229.38 9,022.70 -3,948.68 -4,213.97 5,971,304.11 660,357.95 70°19'41.337 N 148°41'57.89 W 12,809.13 95.54 229.48 9,020.64 -3,968.94 -4,237.64 5,971,283.34 660,334.73 70°19'41.138 N 148°41'58.58 W 12,839.33 98.52 229.14 9,016.94 -3,988.48 -4,260.36 5,971,263.31 660,312.44 70°19'40.946 N 148°41'59.24 W 12,868.91 102.17 228.20 9,011.63 -4,007.69 -4,282.21 5,971,243.62 660,291.02 70°19'40.757 N 148°41'59.88 W 12,896.90 105.59 229.48 9,004.92 -4,025.57 -4,302.67 5,971,225.29 660,270.97 70°19'40.581 N 148°42'0.48 W 12,930.69 109.77 227.87 8,994.66 -4,046.82 -4,326.84 5,971,203.52 660,247.27 70°19'40.371 N 148°42'1.18 W I 12,961.67 109.78 225.54 8,984.18 -4,066.81 -4,348.06 5,971,183.07 660,226.50 70°19'40.175 N 148°42'1.80 W 13,041.00 109.78 225.54 8,957.33 -4,119.10 -4,401.34 5,971,129.63 660,174.38 70°19'39.660 N 148°42'3.36 W TD 4/16/2013 8::32::04AM Page 4 COMPASS 5000.1 Build 61 MVO BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB E Pad E-25 - Slot 25 E-25A Survey: MWD Survey Report - Geographic 16 April, 2013 Øbp MU BAKER FRIOHI5 Survey Report-Geographic () p 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Well: E-25 North Reference: True Wellbore: E-25A Survey Calculation Method: Minimum Curvature Design: E-25A Database: EDM R5K-Alaska PROD-ANCP1 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 PB E Pad,TR-11-14 Site Position: Northing: 5,973,160.88 usft Latitude: 70°19'59.134 N From: Map Easting: 662,538.97 usft Longitude: 148°40'53.05 W Position Uncertainty: 0.00 usft Slot Radius: 0.000in Grid Convergence: 1.24° Well E-25 API No. 500292177300 Well Position +N/-S 0.00 usft Northing: 5,975,344.00 usft Latitude: 70°20'20.184 N +E/-W 0.00 usft Easting: 664,484.00 usft Longitude: 148°39'54.87 W Position Uncertainty 0.00 usft Wellhead Elevation: usft Ground Level: 32.00 usft Wellbore E-25A API no. 500292177301 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°l (°) (nT) BGGM2012 3/25/2013 20.52 81.05 57,630 Design E-25A Audit Notes: Version: 1.0 Phase: ACTUAL Tie On Depth: 11,163.19 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (usft) (usft) (usft) (1 37.80 0.00 0.00 227.61 Survey Program Date: 4/16/2013 From To (usft) (usft) Survey(Wellbore) Tool Name Description 100.02 10,900.02 2:Schlumberger GCT multishot(E-25) GCT-MS Schlumberger GCT multishot 10,957.00 11,163.19 MWD(E-25APB1) MWD MWD-Standard 11,190.40 13,560.00 MWD(E-25A) MWD MWD-Standard 4/16/2013 8:38:45AM Page 2 COMPASS 5000.1 Build 61 BAKIIR Survey Report-Geographic 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Well: E-25 North Reference: True Wellbore: E-25A Survey Calculation Method: Minimum Curvature Design: E-25A Database: EDMRSK-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +El-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 11,163.19 90.46 237.95 9,013.42 -3,527.97 -2,751.63 5,971,756.76 661,810.61 70°19'45.482 N 148°41'15.20 W TIP 11,190.40 90.07 243.22 9,013.29 -3,541.33 -2,775.32 5,971,742.89 661,787.22 70°19'45.350 N 148°41'15.89 W KOP 11,230.67 95.35 238.86 9,011.39 -3,560.79 -2,810.50 5,971,722.66 661,752.48 70°19'45.159 N 148°41'16.92 W 11,255.11 93.50 236.92 9,009.50 -3,573.74 -2,831.13 5,971,709.26 661,732.13 70°19'45.031 N 148°41'17.52 W 11,287.42 90.92 233.32 9,008.25 -3,592.20 -2,857.61 5,971,690.23 661,706.07 70°19'44.850 N 148°41'18.30 W', 11,317.64 90.55 235.45 9,007.87 -3,609.80 -2,882.18 5,971,672.10 661,681.90 70°19'44.676 N 148°41'19.01 W 11,349.11 90.40 240.73 9,007.61 -3,626.43 -2,908.88 5,971,654.89 661,655.57 70°19'44.513 N 148°41'19.79 W I 11,379.95 90.18 243.87 9,007.45 -3,640.76 -2,936.18 5,971,639.96 661,628.59 70°19'44.372 N 148°41'20.59 W 11,406.55 89.51 247.77 9,007.52 -3,651.65 -2,960.44 5,971,628.54 661,604.57 70°19'44.264 N 148°41'21.30 W'. 11,437.73 88.07 252.01 9,008.18 -3,662.37 -2,989.71 5,971,617.19 661,575.55 70°19'44.159 N 148°41'22.15 W 11,467.67 87.45 255.51 9,009.35 -3,670.74 -3,018.43 5,971,608.19 661,547.03 70°19'44.077 N 148°41'22.99 W 11,502.38 87.82 261.18 9,010.78 -3,677.74 -3,052.38 5,971,600.45 661,513.24 70°19'44.008 N 148°41'23.98 W 11,528.52 87.24 262.71 9,011.91 -3,681.40 -3,078.24 5,971,596.22 661,487.47 70°19'43.971 N 148°41'24.74 W 11,558.96 88.34 267.81 9,013.09 -3,683.91 -3,108.54 5,971,593.05 661,457.23 70°19'43.947 N 148°41'25.62 W 11,590.51 89.91 273.15 9,013.57 -3,683.65 -3,140.07 5,971,592.62 661,425.70 70°19'43.949 N 148°41'26.54 W 11,620.41 89.69 277.05 9,013.67 -3,680.99 -3,169.85 5,971,594.62 661,395.88 70°19'43.975 N 148°41'27.41 W 11,662.41 88.62 283.32 9,014.29 -3,673.57 -3,211.16 5,971,601.13 661,354.42 70°19'44.048 N 148°41'28.62 W 11,693.83 89.69 287.48 9,014.76 -3,665.23 -3,241.44 5,971,608.81 661,323.96 70°19'44.130 N 148°41'29.50 W 11,723.93 89.05 291.59 9,015.09 -3,655.16 -3,269.80 5,971,618.25 661,295.39 70°19'44.229 N 148°41'30.33 W 11,755.57 90.71 296.58 9,015.15 -3,642.26 -3,298.68 5,971,630.52 661,266.24 70°19'44.356 N 148°41'31.17 W 11,783.98 90.28 299.97 9,014.91 -3,628.80 -3,323.69 5,971,643.42 661,240.94 70°19'44.488 N 148°41'31.90 W 11,818.27 90.89 297.17 9,014.56 -3,612.40 -3,353.80 5,971,659.15 661,210.48 70°19'44.649 N 148°41'32.78 W 11,844.02 92.58 295.04 9,013.78 -3,601.08 -3,376.91 5,971,669.96 661,187.12 70°19'44.760 N 148°41'33.46 W 11,876.52 90.52 290.73 9,012.90 -3,588.45 -3,406.83 5,971,681.93 661,156.93 70°19'44.884 N 148°41'34.33 W 11,904.00 90.86 287.72 9,012.57 -3,579.40 -3,432.78 5,971,690.41 661,130.80 70°19'44.973 N 148°41'35.09 W 11,945.35 89.26 283.46 9,012.52 -3,568.29 -3,472.60 5,971,700.64 661,090.75 70°19'45.082 N 148°41'36.25 W 11,969.23 89.42 279.57 9,012.80 -3,563.53 -3,495.99 5,971,704.89 661,067.26 70°19'45.129 N 148°41'36.93 W 11,997.07 89.14 276.14 9,013.15 -3,559.72 -3,523.56 5,971,708.09 661,039.61 70°19'45.166 N 148°41'37.74 W 12,048.01 91.14 270.33 9,013.02 -3,556.85 -3,574.40 5,971,709.85 660,988.73 70°19'45.194 N 148°41'39.22 W 12,078.54 93.32 267.46 9,011.84 -3,557.44 -3,604.89 5,971,708.59 660,958.26 70°19'45.188 N 148°41'40.11 W 12,107.96 92.61 263.02 9,010.31 -3,559.88 -3,634.16 5,971,705.51 660,929.05 70°19'45.164 N 148°41'40.97 W 12,136.95 93.56 259.37 9,008.75 -3,564.31 -3,662.76 5,971,700.46 660,900.55 70°19'45.121 N 148°41'41.80 W 12,165.79 93.62 255.47 9,006.95 -3,570.57 -3,690.85 5,971,693.57 660,872.61 70°19'45.059 N 148°41'42.62 W 12,197.23 92.83 250.86 9,005.18 -3,579.66 -3,720.89 5,971,683.83 660,842.79 70°19'44.969 N 148°41'43.50 W 12,228.78 91.10 247.31 9,004.09 -3,590.92 -3,750.34 5,971,671.93 660,813.59 70°19'44.858 N 148°41'44.36 W 12,257.50 90.58 242.98 9,003.67 -3,602.98 -3,776.39 5,971,659.30 660,787.82 70°19'44.740 N 148°41'45.12 W 12,285.39 90.64 240.40 9,003.38 -3,616.21 -3,800.94 5,971,645.54 660,763.56 70°19'44.609 N 148°41'45.84 W 12,320.26 91.96 236.46 9,002.59 -3,634.46 -3,830.63 5,971,626.64 660,734.28 70°19'44.430 N 148°41'46.70 W 12,352.59 90.52 232.58 9,001.89 -3,653.21 -3,856.95 5,971,607.32 660,708.38 70°19'44.245 N 148°41'47.47 W 12,384.18 90.03 230.51 9,001.73 -3,672.86 -3,881.68 5,971,587.14 660,684.08 70°19'44.052 N 148°41'48.19 W 12,414.39 90.34 226.42 9,001.64 -3,692.88 -3,904.29 5,971,566.62 660,661.92 70°19'43.855 N 148°41'48.85 W 12,447.97 90.03 222.67 9,001.53 -3,716.81 -3,927.84 5,971,542.18 660,638.90 70°19'43.619 N 148°41'49.54 W 12,483.77 90.86 219.92 9,001.25 -3,743.71 -3,951.47 5,971,514.78 660,615.88 70°19'43.355 N 148°41'50.23 W 12,512.58 90.31 216.08 9,000.96 -3,766.40 -3,969.20 5,971,491.70 660,598.65 70°19'43.131 N 148°41'50.75 W 12,543.77 91.10 212.52 9,000.57 -3,792.16 -3,986.77 5,971,465.56 660,581.65 70°19'42.878 N 148°41'51.26 W 12,573.99 92.09 208.32 8,999.73 -3,818.21 -4,002.06 5,971,439.19 660,566.93 70°19'42.622 N 148°41'51.70 W 12,603.48 92.61 206.54 8,998.52 -3,844.36 -4,015.64 5,971,412.75 660,553.93 70°19'42.364 N 148°41'52.10 W 12,633.47 92.46 210.89 8,997.19 -3,870.63 -4,030.03 5,971,386.17 660,540.12 70°19'42.106 N 148°41'52.52 W 12,663.77 89.94 213.70 8,996.56 -3,896.23 -4,046.21 5,971,360.22 660,524.51 70°19'41.854 N 148°41'52.99 W 12,693.57 90.34 215.74 8,996.49 -3,920.72 -4,063.18 5,971,335.37 660,508.08 70°19'41.613 N 148°41'53.49 W 12,724.86 92.05 217.95 8,995.83 -3,945.75 -4,081.94 5,971,309.93 660,489.88 70°19'41.367 N 148°41'54.03 W 12,753.71 93.68 220.50 8,994.39 -3,968.07 -4,100.16 5,971,287.22 660,472.15 70°19'41.147 N 148°41'54.57 W 12,785.47 95.02 224.27 8,991.98 -3,991.46 -4,121.50 5,971,263.37 660,451.33 70°19'40.917 N 148°41'55.19 W 4/16/2013 8:38.45AM Page 3 COMPASS 5000.1 Build 61 NAV BAKER iR14 $ Survey Report-Geographic bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft(generic drilling ri Well: E-25 North Reference: True Wellbore: E-25A Survey Calculation Method: Minimum Curvature Design: E-25A Database: EDM R5K-Alaska PROD-ANCP1 Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (usft) (°) (°) (usft) (usft) (usft) (usft) (usft) Latitude Longitude 12,814.63 94.76 225.54 8,989.50 -4,012.04 -4,142.01 5,971,242.35 660,431.28 70°19'40.715 N 148°41'55.79 W 12,844.21 90.58 226.84 8,988.12 -4,032.49 -4,163.33 5,971,221.44 660,410.41 70°19'40.513 N 148°41'56.41 W 12,873.81 90.58 230.60 8,987.82 -4,052.01 -4,185.57 5,971,201.43 660,388.61 70°19'40.321 N 148°41'57.06 W 12,903.49 90.95 235.17 8,987.42 -4,069.91 -4,209.23 5,971,183.02 660,365.35 70°19'40.145 N 148°41'57.75 W 12,933.75 86.84 237.04 8,988.01 -4,086.78 -4,234.33 5,971,165.60 660,340.62 70°19'39.979 N 148°41'58.48 W 12,963.77 87.27 239.95 8,989.55 -4,102.45 -4,259.89 5,971,149.38 660,315.42 70°19'39.825 N 148°41'59.23 W 12,999.51 89.57 242.61 8,990.53 -4,119.61 -4,291.22 5,971,131.54 660,284.48 70°19'39.656 N 148°42'0.14 W 13,034.70 91.01 238.79 8,990.36 -4,136.83 -4,321.90 5,971,113.65 660,254.18 70°19'39.486 N 148°42'1.04 W 13,063.69 90.37 235.22 8,990.01 -4,152.61 -4,346.21 5,971,097.34 660,230.23 70°19'39.331 N 148°42'1.75 W 13,099.59 89.75 231.22 8,989.97 -4,174.10 -4,374.96 5,971,075.22 660,201.96 70°19'39.119 N 148°42'2.58 W 13,129.19 88.68 227.32 8,990.37 -4,193.41 -4,397.38 5,971,055.43 660,179.97 70°19'38.929 N 148°42'3.24 W 13,163.17 87.21 229.28 8,991.59 -4,216.00 -4,422.73 5,971,032.29 660,155.12 70°19'38.707 N 148°42'3.98 W 13,200.73 88.37 233.38 8,993.04 -4,239.45 -4,452.03 5,971,008.21 660,126.34 70°19'38.476 N 148°42'4.83 W 13,226.93 89.39 237.06 8,993.55 -4,254.38 -4,473.54 5,970,992.81 660,105.17 70°19'38.329 N 148°42'5.46 W 13,260.93 90.71 240.81 8,993.52 -4,271.93 -4,502.66 5,970,974.63 660,076.44 70°19'38.157 N 148°42'6.31 W 13,292.69 93.04 242.25 8,992.49 -4,287.06 -4,530.56 5,970,958.89 660,048.88 70°19'38.008 N 148°42'7.12 W 13,323.09 95.69 243.20 8,990.17 -4,300.95 -4,557.50 5,970,944.42 660,022.26 70°19'37.871 N 148°42'7.91 W 13,354.92 98.19 245.06 8,986.33 -4,314.73 -4,585.92 5,970,930.01 659,994.14 70°19'37.735 N 148°42'8.74 W 13,386.05 99.79 247.02 8,981.46 -4,327.22 -4,614.02 5,970,916.91 659,966.33 70°19'37.612 N 148°42'9.56 W 13,416.86 99.73 250.99 8,976.24 -4,338.10 -4,642.36 5,970,905.42 659,938.23 70°19'37.505 N 148°42'10.39 W 13,456.97 99.29 257.43 8,969.60 -4,348.85 -4,680.41 5,970,893.83 659,900.44 70°19'37.399 N 148°42'11.50 W 13,494.17 99.38 261.86 8,963.57 -4,355.45 -4,716.51 5,970,886.44 659,864.49 70°19'37.334 N 148°42'12.55 W 13,560.00 99.38 261.86 8,952.84 -4,364.65 -4,780.80 5,970,875.84 659,800.42 70°19'37.243 N 148°42'14.43 W TD-PRODUCTION LINER 1 4/16/2013 8:38:45AM Page 4 COMPASS 5000.1 Build 61 2\3-030 z25 2 I 0 LO M o C;; 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G ' r� O L" U 1..-4 c.... r U ' z o -' i. '`i o 2 2 5 0) ,4 o O a Q O .0 M F+1 U rC z v' C7 co rn M1...1 u' O. `;`1 cc F9 r+.i *..,, N Q (QJ) I-� , M M M M M M M M M V) (*.INN M N N M M ++ N al W �, 1 r T T T P T P T P T P T T (1D tid ,--/ r J V' CO 03 ill N 0, y C a, C C y N a) fQ 10 C) Q O. d `\ 0 '-■ rdM '�_i O T Tt CO rt CO O co T' N T in P N c U] - r P M N N N N N N O r P N P N M N CLS P x a s Q ce As- ,,,,, .."-r? o z Z O O N J I O > a J J Q' X U. MI LI" OLL LL } W O O O - O 2 1 -rr' Q IX W CC H ce J J a' � H X R W U CO a u a ~ILI 4' W 4 W Y a a O J J J O O J O O O a O .-i EL J J J Z Z Z 2 2 Z 2 Q 2 E _ _ 2 Z Z F" Z Z L.) 0 o o W W o W W W W m m W o o (7 o 0 F- v) 0 M W .-■ m i m lD I- Q 0 X X X X X X X X X Call N ii H • N X X X X X X X X X X 0 O H . I-- 0 C67 . aa CA ,_ J Tr 0, N Ili M (0 lh P 00 O 0) e' ,- r-- CIS cc O O Q) T cy M o [t Cr N O M N T Y. M 0 0 CID W P O 0 n 0 CD t!) CO Z O T o O N T T 0 o T 0 O O o O o O O O o O O O O O O O O O > cc o 9 o 0 0 0 0 o W o o 0 0 0 0 0 0 0 o fl- o 0 '4 2 0 o N 9 0 0 N 4 2 LL o 4 4 IV 4 oo ® ° Q U. vX) 0 in Xn in a 0 Q U. CCO 0 0 0 m -) Q a) 00 MEI 60 v on, CO o 0 0 0 0 0 o < o m o o CO m m o o m o O it Nom, > awl ty o C Y CI. v Ti- a O1 W CO Q O m m W J o 0o o T CO N CO m J m Q m N oN v CV robj) •a W u 0 0 r O N TO . N O O cam- T N O N ch ci c w m Z CD cp Z 0 Z . c CD c d °Po N U? ?� J CTo a No W Q a� u CO o t w o O N v, a w ❑- ra .= w -c O u cc v)▪ 0 C/7 55 rs, Q ' x a CU m aoi Q P'' ®F h 7, THE STATE �\ I%%%s Alaska Oil and Gas OfALA Conservation Commission GOVERNOR SEAN PARNELL �wa 333 West Seventh Avenue ALAS� Anchorage, Alaska 99501-3572 Main: 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 E-25A BP Exploration (Alaska), Inc. Permit No: 213-030 Surface Location: 1720' FNL, 501' FEL, SEC. 06, T11N, R14E, UM Bottomhole Location: 783' FNL, 303' FEL, SEC. 12, T11N, R13E, 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, Cathy P oerster Chair DATED this/e,, of March, 2013. STATE OF ALASKA RECEIVED ALAS IL AND GAS CONSERVATION COMMI' N FEB 2 7 2013 PERMIT TO DRILL 20 AAC 25.005 (\ (' 1 a.Type of work: lb.Proposed Well Class: 0 Development Oil ' ❑Service-Winj ®Single Zone - 1 c.Specify if we4 i�proposes for: ❑Drill , ❑Lateral ❑Stratigraphic Test ❑Development Gas ❑Service-Supply ❑Multiple Zone ❑Coalbed Gas ❑Gas Hydrates 0 Redrill ❑Reentry ❑Exploratory ❑Service-WAG ❑Service-Disp ❑Geothermal ❑Shale Gas 2.Operator Name: 5.Bond ®Blanket ❑Single Well 11.Well Name and Number: BP Exploration(Alaska) Inc. Bond No 6194193 - PBU E-25A - 3. Address 6.Proposed Depth: 12.Field/Pool(s) P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 13425' ' ND 8889'ss- Prudhoe Bay/Prudhoe Bay- 4a.Location of Well(Governmental Section): 7.Property Designation(Lease Number): Surface: ADL 028304&028280 1720'FNL, 501'FEL, Sec.06,T11N, R14E, UM • - Top of Productive Horizon: 8. Land Use Permit: 13.Approximate Spud Date: 3755'FNL,2169'FEL, Sec.06, T11N, R14E, UM April 15,2013 Total Depth 9.Acres in Property: 14.Distance to Nearest Property: 783'FNL, 303' FEL, Sec.12,T11N, R13E, UM 2560 13150' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: feet 15.Distance to Nearest Well Open Surface: x 664484 - y-5975344 - Zone- ASP4 GL Elevation above MSL: feet to Same Pool: 180' 16.Deviated Wells: Kickoff Depth: 10950' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 119 degrees Downhole: 3249 Surface: 2369 18. Casing Program Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD ND MD ND (including stage data) 4-1/8" 3-1/2"x 3-1/4" 9.2#/6.2# L-80 STL/TC-II 3575' 9850' 8921'ss 13425' 8889'ss 194 sx Class'G' x 2-7/8" /6.4# /STL 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth ND(ft): Plugs(measured): Effective Depth MD(ft): I Effective Depth ND(ft): Junk(measured): 11540' 8947' 10800', 11080' 11516' 8950' 11350', 11351' Casing Length Size Cement Volume MD ND Conductor/Structural , 110' 20" 8 cu yds Concrete 110' _ 110' Surface 2665' 13-3/8" 1863 cu ft Permafrost E, 1860 cu ft Permafrost_ 2665' 2665' Intermediate 9128' 9-5/8" 1822 cu ft Class'G' 9128' 8512' Production Liner 2744' 5-1/2" 1150 cu ft Class'G' 8794'- 11540' 8214'-8947' Perforation Depth MD(ft): 10124'- 11490' Perforation Depth ND(ft): 9000'-8953' 20.Attachments: ❑Property Plat ®BOP Sketch ®Drilling Program ❑Time vs Depth Plot ❑Shallow Hazard Analysis 0 Diverter Sketch ❑Seabed Report ®Drilling Fluid Program 0 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date 22. I hereby certify that the foregoing is true and correct: Contact Trevor Hyatt;564-4627 Printed Name John ` � f j Title Engineering Team Leader Email Trevor.Hyatt@bp.com 409.w.e, , / I _ Signature Phone 564-4711 Date 2/2-7 43 Commission Use Only Permit To D API Number: Permit Approval ate: See cover letter for Number: Z-t 3 L)�u 50-029-21773-01-00 0.117 other requirements: Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas Er contained shales: Other: 5,5-D /J JD S L Samples Req'd ❑Yes Et/No Mud Log Req'd: ❑ es 'No g(]J) 7Lf5 f / 6 k H2S Measures: Yes ❑No Directional Survey Req'd: L`f Yes ,❑_,/No Spacing exception req'd: ❑Yes ©'No inclination-only svy Req'd: ❑Yes I2/No I , APPROVED BY APPROVED BY 7 -COMMISSIONER THE COMMISSION Date 3 -/ - !/ For ForrOIR fm,No This permit is valid for 24 nths from the date of approval(20 AAC 25.005(g)) i,F andAttach�in Duplicate VLF 3/1z//3 C' 4)z.zs:r:3 To: Alaska Oil & Gas Conservation Commission From: Trevor Hyatt Rig: Nordic 2 by CTD Engineer Target Reservoir: Ivishak Zone 1 B/1A Date: February 26, 2013 Re: E-25A Permit to Drill Request Approval is requested for a permit to drill a CTD sidetrack from well E-25. WELL HISTORY: E-25 was drilled/completed in Feb-1988. The well came on strong. The well then slowly increased in GOR till a CIBP was set in Dec-1993. This had little effect on the GOR. A subsequent plug was set in June-1994 which dropped the GOR, without damaging the oil rate. The well predictably slowly increased in GOR in Oct-2000. Multiple plugs were set/milled, etc. for the next year plus, till May-2002 when the right combination was found restoring the wells production. The well has slowly increased to its current GOR. REASON FOR SIDETRACK: E-25 is not showing healing characteristics and has degraded to < 10%. There are no further wellwork options on this well. The proposed plan for E-25A is to drill a through tubing sidetrack with the SLB/Nordic 2 Coiled Tubing Drilling rig on or around April 15, 2013. The existing perforations will be isolated by the primary liner cement job. The sidetrack, E-25A, will exit the existing 5.5" liner, kick off and land in the Ivishak Zone 1A, then toe up in mid Ivishak Zone 1B. The following describes work planned and is submitted as an attachment to Form 10-403. A schematic diagram of the proposed sidetrack is attached for reference. CTD Drill and Complete E-2f. rogram: Rig Start Date: April 15, ' Pre-Rig Work: (scheduled to begin on March 10, 2013) 1. S SBHPS 2. C Mill out XN Nipple at 8,749' MD, to 4.55" ID Mill out 5-1/2" HES EZ Drill Plug at 10,800' MD Injectivity Test Caliper Dummy WS drift. 3. W Torque LDS. 5 I . 4. V PT MV, SV, WV. h! 5. 0 Blind and bleed lines, remove well house, level pad. 6. V Set TWC -24 hrs prior to rig arrival. Rig Work: (scheduled to begin on April 15, 2013) 1. MIRU and test BOPE to 250 psi low and 3500 psi high 2. Set top of 5-1/2" Whipstock at 10,950' MD. 3. Mill 3.80" window at -10,950' and 10' of rathole. Swap the w ell to PowerPro. 4. Drill Build: 4.125" OH, (12 deg/100 planned) with resistivity 5. Drill Lateral: 4.125" OH, (12 deg/100 planned) with resistivity 6. Run 3-1/2" x 3-1/4" x 2-7/8" solid L-80 liner leaving TOL at -9,850' 7. Pump primary cement leaving TOC at -9,850', 40 bbls of 15.8 ppg liner cmt planned 8. Cleanout liner and MCNL/GR/CCL log 9. Test liner lap to 2000 psi. 10. Perforate liner per asset instructions (-1800') c7-() -21 3 6 3 D 11. Freeze protect well, RDMO Post Rig: 1. Re-install well house and attach production lines. 2. Pull BPV. 3. Run generic GLVs. 4. Set LTP (if necessary) 5. Test separator (-1800' of perfs). Mud Program: • Well kill: 8.4 ppg brine. • Milling/drilling: 8.6 ppg PowerPro for milling window and drilling (689 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: • 3-1/2", 9.2#, L-80, STL Solid Liner 9,850' MD— 10,750' MD • 3-1/4", 6.2#, L-80, TC-II Solid Liner 10,750' MD— 11,775' MD • 2-7/8", 6.4#, L-80, STL Solid Liner 11,775' MD— 13,425' MD • A minimum of 40 bbls of 15.8 ppg cement will be used for liner cementing. (TOC 9,850' MD) • The primary barrier for this operation: a minimum EMW of 8.4 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 119°. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property— 13,150' to the North. • Distance to nearest well within pool — 180' to G-13A. 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: • 2", 6 spf, perf guns, 1.25" CSH work string, & 2-3/8" PH6 • The primary barrier for this operation: a minimum EMW of 8.4 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 • E-21A failed Major Risk-well is P&A'd. • E-21 B failed Major Risk -well will be shut in for drilling. • G-13A failed Major Risk -well is P&A'd. Hazards % • The maximum recorded H2S level on J Pad was 102 ppm on well E-102 on 5/4/2012. Reservoir Pressure • The reservoir pressure on E-25A is expected to be 3249 psi at 8800' TVD (7.1 ppg equivalent). - • Maximum expected surface pressure with gas (0.10 psi/ft) to surface is 2369 psi. • An EMW of 8.4 ppg for this well will provide 595 psi over-balance to the reservoir. . Trevor Hyatt CC: Well File CTD Engineer Joseph Lastufka TTY= MCEVOY WELLHEAD= MCEVOY Si NOTES: 70°@ 9900'AND 90°@ 10600'. ACTUATOR= AXELSON E -25A 5/4.__-CIBP MILLED LOOSE&IS FREE-FLOATING KB.ELEV= _67.8' IN W ELLBORE P �l BF.ELEV= __32 CTD Planned Seisark KOP= 3200' Max Angle= 38 @ 11300' I 2074' —I5-1/2"OTIS SSSV LAND. NYC,ID=4.562" Datum MD= 971T Datum TVD= 8800'SS GAS LIFT MANDRELS ,ST MD TVD DEV TY FE VLV LATCH PORT [GATE 13-3/8"CSG,72#,L-80,D=12.347" H 2665' 5 3001 2934 3 OT DOME RA 16 10/09/03 4 5732 5424 30 OT S/O RA 20 10/09/03 3 7664 7106 27 OT "DMY RA 0 09/29/03 PERFORATION SUMMARY LI 2 8434 7811 21 OT DMY RA 0 02/01/88 REF LOG:MWLYGR ON 01/18/88 1 8505 7877 21 OT DMY RA 0 02/01/88 ANGLE AT TOP PERF:77°@ 10124' **STATION#3=DMY HAS EXTENDED PACKING Note:Refer to Production DB for historical pert data SIZE SPF NTERVAL Opn/Sgz DATE 3-3/8" 6 10124- 10164 O 05/23/10 I I 8585' —5-1/2"OTIS XA SLDNG SLEEVE,ID=4.562" 3-3/8" 4 10190- 10780 0 01/28/88 3-3/8" 4 10810- 11065 0 01)28/88 3-3/8" 4 11095- 11385 C 05/21102 ,47 - 8644" H5-1/2"SEAL ASSY 3-3/8" 4 11415- 11490 C 05/21/02 8658' —19-5/8 X 5-1/2 11W BB PKR,D=4.750" I 8709' —15-112*OTIS X MP,D=4.562" °^'reCoillpmi'1tD4S5"ID at8749'MD 8749' --I5-1/2"OTIS XN NP,ID=4.455" 5-1/2"TBG, 17#,L-80, .0232 bpf,ID=4.892" — 8793' g\ 879T H5-1/2"SEAL ASSY,NO SEALS TOP OF 5-1/2"LNR H 8793' 8801' H law TT LOGGED 03/06/88 Minimum ID =4.455" @ 8749' H 5-112" OTIS XN NIPPLE H 9-5/8"CSG,47#,L-80,ID=8.881" 9128' -9,850'M D TO C /f0 L-3-1 2"Liler l ` Servbe CoiltD m i11at10,800'M D 1)0$QO' —I5-1/2"HES EZ DRLL RUG(05/23/10) TOWS (5-1/2")aEl0,950'MD \-\. \--. \` 11080' H5 1/2"BKR CBP(05/21/02) 96 -10,750M D Top of3-1/4" \ 11350' HMLLEDCBP(05/20/02) W S Orient 150°R 0 H S i 11351' H3-3/8"BP(05/20/02) 2-7/8"x 3 1/4" xo deeper than an 11,775 t / PBTD —1 11516' . TD - 13,425' (plan 4) / l i1 . \ ,,''•• 5-1/2"LNR,17#,L-80,.0232 bpf,ID=4.892" H 11540' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 02/01/88 ORIG HORIZ COMPLETION 10/10/03 JBNYTLP XA SLIDING SLV CORRECTION WELL: E-25 12/31/01 RN/TP CORRECTIONS 10/09/03 JCMTLP GLV C/O FERMI No: 1871310 05/04/02 DDW/KK CBP SAFETY NOTE 05/30/10 JF/PJC EZ DRLL/PE2FS(05/23/10) AR No: 50-029-21773-00 05/21/02 KSB/KK SET/MLL CBP SEC 6,T11 N,R14E,1720'FNL&501'FR_ 07/12/03 CMD/TLP MAX ANGLE CORRECTION 09/29/03 JLJ/TLH GLV GO BP Exploration(Alaska) TREE= MCEV OY VVELLFEAD= MCEVOY SA' NOTES: 70°@ AND 9 ACTUATOR= AXELSO E-2 5 514k B k P MILLED LOOSE N &IS FREE-FLOATING KB.ELEV= _ 67.8' IN WELLBORE BF.aEV= 2 _ 3 KOP=_ 3200' Max Angle= as @ 11300' 2074' H5-1/2"OTIS SSSV LAND.NP,ID=4.562" Datum MD= 971T Q -Datum TV D= 8800'SS GAS LIFT MANDRELS ,ST MD ND DEV TYPE VLV LATCH PORT DATE 13-3/8"CSG,72#,L-80,D=12.347" --I 2665' I 5 3001 2934 3 OT DOME RA 16 10/09/03 4 5732 5424 30 OT S/0 RA 20 10/09/03 3 7664 7106 27 OT "DMY RA 0 09/29/03 2 8434 7811 21 OT DMY RA 0 02/01/88 1 8505 7877 21 OT DMY RA 0 02/01/88 Minimum ID =4.455" @ 8749' "STATION#3=DMY HAS EXTENDED PACKING 5-1/2" OTIS XN NIPPLE I I 8585' H5-1/2"OTIS XA SLDNG SLEEVE,ID=4.562" ■ r 8644' ---I5-1/2'SEAL ASSY Z X 8658' —I9-5/8 X 5-1/2 TM/BB PKR,D=4.750" I ' 8709' H5-1/2"OTIS X NP,D=4.562" 8749' —15-1/2"OTIS XN NP,D=4.455" 8797' H5-1/2"SEAL ASSY,NO SEALS 5-1/2"TBG, 17#,L-80,_0232 bpf,D=4.892" H 8793' 8801' HELM)TT LOGGED 03/06/88 TOP OF 5-1/2"LNR H 8793' '------ 9-5/8"CSG,47#,L-80,ID=8.681" H 9128' • ■ PERFORATION SUVMARY 10800' —15-1/2"HES EZ DRLL PLUG(05/23/10) REF LOG:MWLYGR ON 01/18/88 ANGLE AT TOP PERF:77°@ 10124' `, 11080' —15-1/2"BKR CIBP(05/21/02) Note:Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE I 11350' —1 MLLED CIBP(05/20/02) 3-3/8" 6 10124-10164 O 05/23!10 3-3/8" 4 10190-10780 0 01/28/88 // 11351' H3-3/8"ISP(05/20/02) 3-3/8" 4 10810-11065 O 01/28/88 3-3/8" 4 11095-11385 C 05/21/02 MID --1 11516' 3-3/8" 4 11415-11490 C 05/21/02 • 5-1/2"LNR, 17#,L-80,.0232 bpf,D=4.892" H 11540' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNFT 02/01188 ORIG HORIZ COMPLETION 10/10/03 JBM/TLP XA SLIDING SLV CORRECTION WELL: E-25 12/31/01 RWTP CORRECTIONS 10/09/03 JCMITLP GLV CJO PERNITNo: 1871310 05/04/02 DCN1//KK CIBP SAFETY NOTE 05/30/10 JF/PJC EZ DRILL/PERFS(05/23/10) AFI No: 50-029-21773-00 05/21/02 KSB/KK SET/MLL CDP SEC 6,T11 N,R14E,1720'Ft'L&501'FEL 07/12/03 CMO/TLP MAX ANGLE CORRECTION 09/29/03 JLJ(RH GLV C/O BP Exploration(Alaska) a 0 a m Q o J Q Q ix co co c) _ •MINN L Er M : LD ;' Ill W L � aN a as C) Al Z W O -cg Q. 1 N N Mew Z a_ a m o m CY N 4 tO a o, CD _ ._ Z U m 0 M c Z i v n D. •o v v ,p o CO m 01 II p p p O tl� N N i° o Ln 1° O O M h �I v N % p Co Q a m co U U ce(0 Z 0 o O a w oo 0o a _ N N. 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OOOOO c �4 44 W 192 ! LOM-i ww442 y° YY gry°mnery�°m��:�W�mWOm gg Q 5 h i ���N VNi m m «0 0 Vy •R 22 4 4 9��222•� �C �w� w w 2222 4 R R R A A A A T y' Ev g r8 NNNNNNN NNNNN o 1{f.f1...11f1t{1}{lf ft{f 1111{1111}{{i t 111 t 14.1141 N, Eog Zg �A22[O lfNm NiS ET,2mmmmmalmmmmm co ee 00000 000 °000 00 0000° 1- I 48 20 o a= 00° NNNNN• NN4R 39 8 0'N.v 00,000- 0.mmn 8 om 8 R \ °= m 0 m� z 2 Y v 13p6A _ o a � ,%- �3 p0 c z O N J 8 S' il 03 . c 11,11iiti o O ��//�� \ m m Ql \\"\'''''\' 1' U C C O m r O N O O O O O O P O O O O O O [O V p O O W U ma Q4 O T. m , L LW W wLA] �r O aa_ nab 1 c x03 Sal IN ° c4'n a a N h N 1111111. N N W�% a Li 0 M \ 2-N N r3 N 3 s r �r BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB E Pad E-25 E-25A Plan 4 Travelling Cylinder Report 08 February, 2013 bp Midi BP BAKER HUGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 sc •.c'ox:4^ I. Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) z" Site Error: 0.00 usft North Reference: True � r } Reference Well: E-25 Survey Calculation Method: Minimum Curvature A��a „ ' Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDMR5K-Alaska PROD-ANCP1 r ' Reference Design: Plan 4 Offset TVD Reference: Offset Datum ` Reference Plan 4 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of reference Interpolation Method: MD Interval 25.00usft Error Model: ISCWSA Depth Range: 10,900.02 to 13,425.00usft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,538.72 usft Error Surface: Elliptical Conic Survey Tool Program Date 2/8/2013 From To (usft) (usft) Survey(Wellbore) Tool Name Description 311.00 11,540 10 1 :Schlumberger GCT multishot(E-25) GCT-MS Schlumberger GCT multishot 100.02 10,900.02 2:Schlumberger GCT multishot(E-25) GCT-MS Schlumberger GCT multishot 10,900.02 13,425.00 Plan 4(E-25A) MWD MWD-Standard Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (usft) (usft) Name (in) (in) 13425 00 8,956.60 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 (usft) from Plan Offset Well-Wellbore-Design (usft) (usft) (usft) (usft) PB E Pad E-18-E-18-E-18 Out of range E-18-E-18A-E-18A Out of range E-18-E-1 8B-E-18B Out of range E-19-E-19A-E-19A Out of range E-19-E-19B-E-19B Out of range E-19-E-19C-E-19C Out of range E-19-E-19C Extended TD-E-19C Extended TD Out of range E-19-E-19C Extended TD-Plan#1 Out of range E-21-E-21-E-21 12,075.00 10,675.00 916.05 822.48 109.61 Pass-Major Risk E-21-E-21A-E-21A 11,902.71 11,325.00 134.03 638.85 -442.36 FAIL-Major Risk E-21-E-21B-E-21B 12,000.00 10,600.00 655.71 718.79 -45.28 FAIL-Major Risk E-23-E-23-E-23 Out of range E-23-E-23A-E-23A Out of range E-23-E-23B-E-23B Out of range E-24-E-24-E-24 Out of range E-24-E-24A-E-24A Out of range E-24-E-24APB1-E-24APB1 Out of range E-24-E-24APB2-E-24APB2 Out of range E-24-E-24B-E-24B Out of range E-25-E-25-E-25 10,974.98 10,975.00 0.54 4.88 -3.50 FAIL-Major Risk E-28-E-28-E-28 Out of range E-28A-E-28A-E-28A Out of range E-29-E-29-E-29 Out of range E-29-E-29A-E-29A Out of range E-29-E-29A-Plan#2 Out of range E-32-E-32-E-32 Out of range CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 2 COMPASS 5000.1 Build 61 BA MR li 0 BP • HUGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well-Wellbore-Design (usft) (usft) (usft) (usft) PB E Pad E-32-E-32A-E-32A Out of range E-32-E-32APB1-E-32APB1 Out of range E-32-E-32B-E-32B Out of range E-32-E-32PB1-E-32PB1 Out of range E-33-E-33-E-33 Out of range E-33-E-33A-E-33A Out of range E-33-E-33B-E-33B Out of range E-37-E-37-E-37 12,465.74 10,625.00 487.41 343.02 150.42 Pass-Major Risk E-37-E-37A-E-37A 12,375.00 10,400.00 539.40 328.89 237.27 Pass-Major Risk E-37-E-37AL1-E-37AL1 13,418.48 11,900.00 451.58 388.91 72.06 Pass-Major Risk E-37-E-37APB1-E-37APB1 12,375.00 10,400.00 539.40 329.15 237.01 Pass-Major Risk E-37-E-37PB1-E-37PB1 12,465.74 10,625.00 487.41 342.69 150.75 Pass-Major Risk E-39-E-39A-Plan#5 Out of range PB G Pad G-02-G-02-G-02 11,400.00 9,950.00 1,500.05 666.68 840.74 Pass-Major Risk G-02-G-02A-G-02A 11,200.00 10,725.00 898.08 516.37 388.53 Pass-Major Risk G-02-G-02B-G-02B 11,322.88 10,350.00 975.22 519.36 459.91 Pass-Major Risk . G-13-G-13A-G-13A 12,670.21 10,844.00 172.91 382.29 -207.62 FAIL-Major Risk G-13-Plan G-13B-G-13B 12,670.21 10,844.00 172.91 382.27 -207.60 FAIL-Major Risk G-13-Plan G-13B-Plan#4 G-13B 12,864.08 11,831.83 99.89 298.30 -184.09 FAIL-Major Risk Offset Design PB E Pad- E-21-E-21-E-21 Offset Site Error: 0.00 usft Survey Program: 100-BOSS-GYRO Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +NIS +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 11,900.00 9,019.51 9,400.00 8,008.89 35.19 19929 -41.23 -2,396.43 -3,41028 3.500 1,521.78 598.57 1,090.55 Pass-Major Risk 11,900.00 9,019.51 9,425.00 8,029.71 35.19 200.06 -40.82 -2,404.04 -3,421.84 3.500 1,502.17 600.52 1,06685 Pass-Major Risk 11,900.00 9,019.51 9,450.00 8,050.56 35.19 200.83 -40.38 -2,411.61 -3,43137 1500 1,482.74 602.46 1,04124 Pass-Major Risk 11,910.21 9,019.13 9,475.00 8,071.46 3522 201.61 -41.18 -2,419.13 -3,444.85 3.500 1,463.36 613.39 1,011.22 Pass-Major Risk 11,913.19 9,019.03 9,500.00 8,092.40 35.23 202.38 -41.08 -2,426.59 -3,456.29 3.500 1,44421 617.95 985.21 Pass-Major Risk 11,925.00 9,01166 9,525.00 8,11137 3527 203.14 -42.04 -2,434.01 -3,467.69 3.500 1,425.33 629.97 952.40 Pass-Major Risk 11,925.00 9,018.66 9,550.00 8,134.39 35.27 203.90 -41.54 -2,441.36 -3,479.06 3.500 1,406.49 631.95 928.83 Pass-Major Risk 11,925.00 9,018.66 9,575.00 8,155.44 35.27 204.66 -41.02 -2,44815 -3,49041 3.500 1,387.86 633.93 90538 Pass-Major Risk 11,925.00 9,01816 9,600.00 8,176.52 3527 205.41 -40.49 -2,455.89 -3,501.73 1500 1,369.47 63192 882.06 Pass-Major Risk 11,925.00 9,01816 9,625.00 8,197.64 3527 206.16 -39.94 -2,463.06 -3,513.02 3.500 1,351.31 637.87 85810 Pass-Major Risk 11,925.00 9,01166 9,650.00 8,218.80 3527 206.90 -39.37 -2,470.16 -3,524.28 3.500 1,33141 63913 83510 Pass-Major Risk 11,934.88 9,018.39 9,675.00 8,240.00 35.31 20764 -39.97 -2,477.19 -3,53511 3.500 1,315.64 65610 804.90 Pass-Major Risk 11,938.09 9,018.31 9,70000 8,261.24 35.32 208.39 -39.75 -2,484.16 -3,54671 3.500 1,298.17 654.73 779.48 Pass-Major Risk 11,950.00 9,018.05 9,725.00 8,282.52 35.37 209.11 -40.55 -2,49105 -3,55788 3.500 1,281.06 666.33 747.54 Pass-Major Risk 11,950.00 9,018.05 9,750.00 8,303.84 35.37 209.84 -39.90 -2,497.84 -3,56902 1500 1,264.08 66832 724.89 Pass-Major Risk 11,950.00 9,018.05 9,775.00 8,325.21 35.37 210.57 -39.21 -2,504.53 -3,580.15 3.500 1,247.42 670.80 702.47 Pass-Major Risk 11,950.00 9,018.05 9,800.00 8,346.61 35.37 211.29 -38.51 -2,511.13 -3,591.26 1500 1,231.11 672.79 680.30 Pass-Major Risk 11,950.00 9,01805 9,825.00 8,366.05 3537 21200 -37.78 -2,51710 -3,60237 3.500 1,215.17 67476 658.43 Pass-Major Risk 11,950.00 9,01805 9,850.00 8,389.51 3537 212.72 -37.03 -2,52317 -3,61349 3.500 1,199.62 67674 636.86 Pass-Major Risk 11,961.41 9,017.85 9,875.00 8,411.01 35.41 213.43 -37.62 -2,530.23 -3,624.62 3.500 1,184.29 687.65 606.33 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 3 COMPASS 5000.1 Build 61 ►/.itr BP BAKER HUGHES Travelling Cylinder Report bp C'TEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-21-E-21-E-21 Offset Site Error: 0.00 usft Survey Program: 100-BOSS-GYRO Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 (usft) (use) (usft) (usft) (usft) (usft) (°) )usft) (usft) (in) (usft) (usft) (usft) 11,964.88 9,017.80 9,900.00 8,432.53 35.42 214.14 -37.24 -2,536.40 -3,635.74 3.500 1,169.41 692.30 582.51 Pass-Major Risk 11,975.00 9,017.68 9,92500 8,454.08 35.46 214.84 -37.62 -2,542.52 -3,646.84 3.500 1,154.94 701.86 553.98 Pass-Major Risk 11,975.00 9,017.68 9,950.00 8,475.65 35.46 215.54 -36.77 -2,548.64 -3,65789 3.500 1,140.67 703.85 533.30 Pass-Major Risk 11,975.00 9,017.68 9,975.00 8,497.25 35.46 216.24 -35.90 -2,554.77 -3,668.88 3.500 1,126.75 705.84 512.94 Pass-Major Risk 11,97500 9,01768 10,000.00 8,518.88 3546 216.94 -35.01 -2,560.89 -3,679.82 3.500 1,113.19 707.84 492.94 Pass-Major Risk 11,975.00 9,01768 10,025.00 8,540.53 35.46 21713 -34.09 -2,56711 -3,69073 3.500 1,10013 709.80 473.34 Pass-Major Risk 11,986.18 9,017.59 10,05010 8,56220 35.51 218.32 -34.47 -2,57309 -3,70162 3.500 1,087.12 71911 445.47 Pass-Major Risk 11,989.82 9,017.57 10,075.00 8,583.88 35.52 21901 -33.93 -2,579.15 -3,712.49 3.500 1,074.71 724.49 423.86 Pass-Major Risk 12,000.00 9,017.54 10,100.00 8,605.58 35.57 219.70 -34.14 -2,585.17 -3,723.34 3.500 1,062.77 733.55 398.04 Pass-Major Risk 12,000.00 9,017.54 10,125.00 8,627.30 35.57 220.39 -33.12 -2,591.21 -3,734.15 3.500 1,051.11 735.53 379.94 Pass-Major Risk 12,000.00 9,017.54 10,15010 8,649.03 35.57 221.08 -3208 -2,597.30 -3,744.90 3.500 1,039.85 737.52 362.32 Pass-Major Risk 12,00000 9,017.54 10,175.00 8,670.78 35.57 221.77 -31.02 -2,60345 -3,755.58 3.500 1,029.00 739.50 345.20 Pass-Major Risk 12,008.42 9,017.54 10,200.00 8,69255 3560 222.46 -3193 -2,609.65 -3,766.19 3.500 1,01847 747.16 322.48 Pass-Major Risk 12,015.00 9,017.57 10,225.00 8,714.34 35.63 223.14 -30.59 -2,615.89 -3,776.75 3.500 1,008.41 753.42 301.80 Pass-Major Risk 12,01510 9,017.57 10,250.00 8,736.14 3563 223.82 -29.46 -2,622.14 -3,78727 3.500 99878 755.40 286.24 Pass-Major Risk 12,019.99 9,017.59 10,275.00 8,757.96 3565 224.51 -28.90 -2,628.41 -3,797.75 3.500 98962 760.63 268.04 Pass-Major Risk 12,025.00 9,017.61 10,30010 8,779.79 3568 225.19 -28.32 -2,63468 -3,808.18 3.500 980.94 76560 250.53 Pass-Major Risk 12,025.00 9,017.61 10,32510 8,801.66 3568 225.87 -27.11 -2,640.97 -3,818.54 3.500 972.75 767.74 236.95 Pass-Major Risk 12,025.00 9,01761 10,35010 8,82156 3568 226.54 -25.89 -2,647.29 -3,828.81 3.500 96518 76969 224.12 Pass-Major Risk 12,035.71 9,01765 10,375.00 8,845.50 35.73 227.22 -25.92 -2,65162 -3,838.98 3.500 957.78 778.23 205.13 Pass-Major Risk 12,039.60 9,017.67 10,400.00 8,867.48 35.74 227.89 -25.12 -2,659.98 -3,849.06 3.500 951.05 782.51 191.33 Pass-Major Risk 12,050.00 9,01769 10,425.00 8,889.49 35.79 22655 -25.07 -2,666.34 -3,859.07 3.500 944.91 790.39 174.68 Pass-Major Risk 12,050.00 9,017.69 10,450.00 8,911.51 35.79 229.22 -23.76 -2,672.71 -3,869.03 3.500 939.22 792.32 164.92 Pass-Major Risk 12,050.00 9,01769 10,475.00 8,933.55 35.79 22968 -22.44 -2,679.09 -3,878.96 3.500 934.14 79425 156.13 Pass-Major Risk 12,050.00 9,01769 10,500.00 8,95561 35.79 230.54 -21.10 -2,68546 -3,88864 3.500 929.68 796.18 148.33 Pass-Major Risk 12,059.03 9,017.71 10,525.00 8,97768 35.84 23121 -20.83 -2,69165 -3,898.70 3.500 92574 803.04 136.29 Pass-Major Risk 12,062.93 9,017.72 10,550.00 8,999.75 35.86 231.87 -19.93 -2,698.24 -3,908.56 3.500 922.44 807.03 128.29 Pass-Major Risk 12,075.00 9,017.73 10,575.00 9,021.87 3511 232.52 -20.01 -2,704.57 -3,918.33 3.500 919.90 814.96 117.32 Pass-Major Risk 12,075.00 9,017.73 10,600.00 9,044.11 35.91 233.17 -18.61 -2,710.75 -3,92713 3.500 917.89 816.87 11164 Pass-Major Risk 12,075.00 9,017.73 10,625.00 9,066.41 35.91 233.80 -17.22 -2,716.86 -3,937.44 3.500 916.60 818.74 111.16 Pass-Major Risk 12,075.00 9,017.73 10,650.00 9,088.71 35.91 23444 -15.82 -2,722.96 -3,946.95 3.500 91518 820.61 10961 Pass-Major Risk,CC 12,075.00 9,017.73 10,675.00 9,111.01 35.91 235.07 -14.41 -2,729.07 -3,956.45 3.500 91605 822.48 109.61 Pass-Major Risk,ES,SF CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/872013 2:10.:OOPM Page 4 COMPASS 5000.1 Build 61 Mill BP BAKEHIJ OR ES Travelling Cylinder Report bp 1NTEQ Y Com an North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Company: Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-21-E-21 A-E-21 A Offset Site Error: 0.00 usft Survey Program: 106-BOSS-GYRO,9958-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Tootface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +NIS +EI-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) 11 (usft) (usft) (in) (usft) (usff) (usft) 11,525.00 9,033.00 12,025.00 8,967.71 37.78 215.65 -168.09 -4,299.53 -3,171.01 3.500 680.21 577.85 110.61 Pass-Major Risk 11,525.00 9,033.00 12,050.00 8,966.95 37.78 215.66 -168.19 -4324.11 -3,188.52 3.500 703.98 577.93 134.36 Pass-Major Risk 11,525.00 9,033.00 12,075.00 8,966.51 37.78 215.66 -168.32 -4,348.89 -3,183.31 3.500 728.16 577.99 158.51 Pass-Major Risk 11,525.00 9,033.00 12,100.00 8,966.51 37.78 215.87 -168.47 -4,373.83 -3,161.54 3.500 752.66 578.05 182.98 Pass-Major Risk 11,525.00 9,033.00 12,125.00 8,966.93 37.78 215.68 -168.65 -4398.82 -3,161.34 3.500 777.37 578.09 207.68 Pass-Major Risk 11,525.00 9,033.00 12,150.00 8,967.44 37.78 215.69 -168.83 -4,423.77 -3,182.66 3.500 80221 578.13 23251 Pass-Major Risk 11,525.00 9,033.00 12,175.00 8,968.08 37.78 215.70 -169.01 -4,448.56 -3,185.83 3.500 827.06 578.16 257.37 Pass-Major Risk 11,525.00 9,033.00 12,200.00 8,968.51 37.78 215.71 -169.17 -4,473.09 -3,170.62 3.500 851.88 578.19 282.18 Pass-Major Risk 11,525.00 9,033.00 12,225.00 8,968.49 37.78 215.72 -169.29 -4,497.28 -3,176.89 3.500 876.52 578.21 306.86 Pass-Major Risk 11,525.00 9,033.00 12,250.00 8,968.11 37.78 215.73 -169.39 -4,520.97 -3,184.86 3.500 900.92 57822 33128 Pass-Major Risk 11,525.00 9,033.00 12,275.00 8,967.30 37.78 215.74 -169.45 -4,544.02 -3,194.49 3.500 924.96 578.23 - 355.34 Pass-Major Risk 11,525.00 9,033.00 12,300.00 8,965.91 37.78 215.76 -169.48 4,586.36 -3,205.61 3.500 948.57 57824 378.97 Pass-Major Risk 11,534.10 9,032.73 12,325.00 8,964.26 36.58 215.77 -168.40 -4,587.91 -3,218.16 3.500 971.57 561.89 413.28 Pass-Major Risk 11,534.45 9,032.72 12,000.00 8,968.39 36.54 215.64 -166.85 4,275.20 -3,178.73 3.500 656.80 560.75 98.90 Pass-Major Risk 11,537.78 9,032.61 12,35000 8,962.97 36.10 215.79 -167.99 -4,608.64 -3,232.07 3.500 994.03 555.29 440.33 Pass-Major Risk 11,538.97 9,032.57 11,975.00 8,968.26 35.94 215.64 -166.13 -4,251.23 -3,183.79 3.500 634.13 552.49 81.82 Pass-Major Risk 11,550.00 9,032.17 11,900.00 8,967.94 34.50 215.63 -164.27 4,181.56 -3,211.49 3.500 570.15 545.25 24.96 Pass-Major Risk 11,550.00 9,032.17 11,925.00 8,967.86 34.50 215.63 -16443 -4,204.57 -3,201.72 3.500 590.99 545.21 45.85 Pass-Major Risk 11,550.00 9,032.17 11,950.00 8,967.97 34.50 215.64 -16460 -4,227.72 -3,19228 3.500 612.30 545.18 67.23 Pass-Major Risk 11,550.00 9,032.17 12,375.00 8,962.53 34.50 215.80 -166.58 -4,628.73 -3,246.94 3.500 1,016.13 544.57 472.31 Pass-Major Risk 11,550.00 9,032.17 12,400.00 8,962.57 34.50 215.82 -166.69 4,848.49 -3,262.26 3.500 1,037.85 543.85 494.15 Pass-Major Risk 11,550.00 9,032.17 12,425.00 8,962.83 34.50 215.83 -166.80 -4,668.22 -3,277.61 3.500 1,059.89 543.78 516.10 Pass-Major Risk 11,550.00 9,032.17 12,450.00 8,963.36 34.50 215.85 -166.93 -4,687.99 -3,292.90 3.500 1,081.87 543.72 538.21 Pass-Major Risk 11,550.00 9,032.17 12,475.00 8,964.54 34.50 215.86 -167.08 -4,707.64 -3,308.30 3.500 1,103.85 543.66 560.34 Pass-Major Risk 11,563.04 9,031.82 11,875.00 8,968.04 34.52 215.62 -162.51 -4,158.49 -3,221.12 3.500 54925 532.00 17.38 Pass-Major Risk 11,575.00 9,031.05 11,825.00 8,967.98 34.54 215.62 -160.68 -4,112.89 -3,241,18 3.500 508.71 519.71 -10.82 FAIL-Major Risk 11,575.00 9,031.05 11,850.00 8,988.06 34.54 215.62 -160.87 -4,135.53 -3,231.01 3.500 528.83 519.88 9.37 Pass-Major Risk 11,584.81 9,030.54 11,800.00 8,967.87 34.56 215.61 -159.27 -4,089.83 -3,251.29 3.500 488.82 509.54 -20.44 FAIL-Major Risk 11,592.57 9,030.10 11,775.00 8,967.80 34.57 215.61 -158.10 -4,066.83 -3,281.09 3.500 468.97 501.44 -32.13 FAIL-Major Risk 11,600.00 9,029.66 11,750.00 8,967.70 34.59 215.61 -156.95 -4,043.72 -3,270.64 3.500 449.20 49364 -44.01 FAIL-Major Risk 11,609.00 9,029.09 11,725.00 8,967.19 34.60 215.60 -155.55 -4,020.74 -3,280.46 3.500 429.93 484.15 -53.70 FAIL-Major Risk 11,617.98 9,028.49 11,700.00 8,966.24 34.62 215.60 -154.08 -3,997.91 -3,290.61 3.500 41124 474 62 -62.77 FAIL-Major Risk 11,625.00 9,028.00 11,67000 8,985.03 34.63 215.80 -152.81 -3,97522 -3,301.04 3.500 393.15 467.17 -73.38 FAIL-Major Risk 11,637.52 9,027.06 11,650.00 8,963.81 3464 215.59 -150.82 -3,952.64 -3,311.70 3.500 375.54 453.83 -77.42 FAIL-Major Risk 11,650.00 9,028.06 11,625 00 8,962.58 34 66 215.59 -148.81 -3,930.15 -3,322.55 3.500 358.49 440 49 -80.88 FAIL-Major Risk 11,658.96 9,025.31 11,600.00 8,961.38 34.67 215.59 -14724 -3,907.60 -3,33327 3.500 341.71 430.92 -87.95 FAIL-Major Risk 11,670.69 9,024.26 11,57600 8,960.23 3469 215.58 -145.44 -3,884.95 -3,343.78 3.500 325.18 419 64 -93.00 FAIL-Major Risk 11,701.80 9,022.11 11,550.00 8,959.14 34.73 215.58 -147.93 -3,862.20 -3,354.09 3.500 308.30 443.05 -134.75 FAIL-Major Risk 11,729.84 9,021.30 11,525.00 8,958.09 34.77 215.58 -149.77 -3,839.36 -3,36421 3.500 290.63 466.06 -173.83 FAIL-Major Risk 11,755.04 9,021.47 11,500.00 8,957.09 34.82 215.57 -151.00 -3,816.45 -3,374.15 3.500 272.33 487.90 -209.90 FAIL-Major Risk 11,783.52 9,022.31 11,475.00 8,955.96 34.87 215.57 -152.48 -3,793.51 -3,384.03 3.500 253.57 517.34 -255.29 FAIL-Major Risk 11,812.07 9,022.55 11,450.00 8,954.63 34.94 215.57 -153.95 -3,770.56 -3,393.87 3.500 234.13 548.31 -304.25 FAIL-Major Risk 11,836.62 9,022.18 11,425.00 8,953.18 35.00 215.56 -154.76 -3,747.62 -3,403.88 3.500 21420 574.03 -347.31 FAIL-Major Risk 11,857.81 9,021.42 11,400.00 8,951.74 3506 215.56 -154.87 -3,724.65 -3,413.46 3.500 193.92 595.50 -384.87 FAIL-Major Risk 11,875.27 9,020.57 11,375.00 8,950.32 35.11 215.56 -154.16 -3,701.67 -3,423.19 3.500 173.53 612.73 414.10 FAIL-Major Risk 11,889.92 9,019.91 11,350.00 8,948.72 35.16 215.55 -152.29 -3,878.87 -3,432.88 3.500 15142 626.86 433.95 FAIL-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 5 COMPASS 5000.1 Build 61 t BP BAKER HUGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-21-E-21 A-E-21 A Offset Site Error: 0.00 usft Survey Program: 106-BOSS-GYRO,9958-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +NtS +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (') (usft) (usft) (in) (usft) (usft) (usft) 11,900.00 9,019.51 9,400.00 8,009.90 35.19 199.10 -41.33 -2,394.61 -3,407.52 3.500 1,526.46 598.09 1,09620 Pass-Major Risk 11,900.00 9,019.51 9,425.00 8,030.70 35.19 199.88 -40.92 -2,402.24 -3,419.10 3.500 1,506.81 600.05 1,072.47 Pass-Major Risk 11,900.00 9,019.51 9,450.00 8,051.54 35.19 200.65 -40.49 -2,409.82 -3,430.63 3.500 1,487.34 602.00 1,048.84 Pass-Major Risk 11,902.71 9,019.40 11,325.00 6946.88 35.20 215.55 -148.92 -3,655.65 -3,442.43 3.500 134.03 638.85 -442.36 FAIL-Major Risk,ES,SF 11,909.50 9,019.16 9,475.00 8,072.43 35.22 201.42 -4120 -2,417.34 -3,442.13 3.500 1,467.93 612.31 1,017.41 Pass-Major Risk 11,912.48 9,019.06 9,500.00 8,093,36 35.23 202.20 -41.11 -2,424.82 -3,453.57 3.500 1,448.74 616.87 991.39 Pass-Major Risk 11,914.00 9,019.01 11,300.00 8,944.87 35.24 215.55 -143.59 -3,632.63 -3,451.96 3.500 115.91 649.15 -433.06 FAIL-Major Risk 11,915.49 9,018.96 9,525.00 8,114.33 35.24 202.96 -41.00 -2,432.25 -3,464.98 3.500 1,429.72 621.42 965.42 Pass-Major Risk 11,924.20 9,018.69 11,275.00 8,942.91 35.27 215.54 -135.78 -3,609.65 -3,461.63 3.500 99.82 658.24 -395.93 FAIL-Major Risk 11,925.00 9,018.66 9,550.00 8,135.33 35.27 203.72 -41.66 -2,439.62 -3,476.36 3.500 1,410.94 631.48 934.42 Pass-Major Risk 11,925.00 9,018.66 9,575.00 8,156.37 35.27 204.48 -41.15 -2,446.93 -3,487.72 3.500 1,392.27 633.46 910.94 Pass-Major Risk 11,925.00 9,018.66 9,600.00 8,177.45 35.27 205.23 -40.62 -2,454.17 -3,49904 3.500 1,373.82 635.45 887.59 Pass-Major Risk 11,925.00 9,018.66 9,625.00 8,198.56 35.27 205.98 -40.07 -2,461.36 -3,510.34 3.500 1,35660 637.41 864.39 Pass-Major Risk 11,925.00 9,018.66 9,650.00 8,219.71 35.27 206.72 -39.50 -2,468.48 -3,521.61 3.500 1,337.64 639.37 841.35 Pass-Major Risk 11,933.49 9,018.43 11,250.00 8,941.02 35.30 215.54 -124.76 -3,586.74 -3,471.45 3.500 87.00 666.31 -315.63 FAIL-Major Risk 11,934.12 9,018.41 9,675.00 8,240.90 35.31 207.47 -40.02 -2,475.53 -3,532.85 3.500 1,319.82 649.00 810.95 Pass-Major Risk 11,937.33 9,018.33 9,700.00 8,262.13 35.32 20821 -39.80 -2,482.51 -3,544.05 3.500 1,302.29 653.83 785.51 Pass-Major Risk 11,940.56 9,018.26 9,725.00 8,283.40 35.33 208.94 -39.56 -2,489.42 -3,555.22 3.500 1,285.02 658.25 760.20 Pass-Major Risk 11,941.98 9,018.22 11,225.00 8,939.20 35.34 215.54 -110.34 -3,563.87 -3,481.38 3.500 79.19 673.51 -181.28 FAIL-Major Risk 11,950.00 9,018,05 9,750.00 8,304.71 35.37 209.67 -40.05 -2,496.23 -3,566.38 3.500 1,268.08 667.85 73025 Pass-Major Risk 11,950.00 9,018.05 9,775.00 8,32667 35.37 210.39 -39.38 -2,502.95 -3,577.51 3.500 1,251.35 669.83 707.77 Pass-Major Risk 11,950.00 9,018.05 9,800.00 8,347.46 35.37 211.12 -38.68 -2,509.57 -3,588.62 3.500 1,234.95 872.31 685.54 Pass-Major Risk 11,950.00 9,018.05 9,825.00 8,368.89 35.37 211.84 -37.96 -2,516.07 -3,599.73 3.500 1,218.93 67429 663.60 Pass-Major Risk 11,950.00 9,018.05 9,850.00 8,390.35 35.37 212.55 -3721 -2,522.46 -3,610.85 3.500 1,203.28 67627 641.95 Pass-Major Risk 11,950.00 9,018.05 11,200.00 8,937.42 35.37 215.54 -93.96 -3,541.05 -3,491.43 3.500 78.02 880.18 -49.74 FAIL-Major Risk,CC 11,956.99 9,017.92 11,175.00 8,935.70 35.39 215.53 -78.40 -3,51828 -3,501.62 3.500 83.82 685.87 -170.93 FAIL-Major Risk 11,96069 9,017.86 9,875.00 8,411.84 35.41 213.28 -37.71 -2,528.75 -3,621.97 3.500 1,187.88 686.55 612.03 Pass-Major Risk 11,963.91 9,017.81 11,150.00 8,934.11 35.42 215.53 -65.83 -3,49568 -3,512.18 3.500 95.29 691.39 -282.72 FAIL-Major Risk 11,964.05 9,017.81 9,900.00 8,433.35 35.42 213.97 -37.33 -2,534.95 -3,633.10 3.500 1,172.91 691.19 588.14 Pass-Major Risk 11,970.59 9,017.73 11,125.00 8,932.65 35.45 215.53 -56.49 -3,473.24 -3,523.11 3.500 110.66 696.59 -355.96 FAIL-Major Risk 11,975.00 9,017.68 9,925.00 8,454.90 35.46 214.67 -37.82 -2,541.07 -3,644.21 3.500 1,158.39 701.39 558.93 Pass-Major Risk 11,975.00 9,017.68 9,950.00 8,476.46 35.46 215.31 -36.98 -2,547.19 -3,65527 3.500 1,144.03 702.56 538.38 Pass-Major Risk 11,975.00 9,017.68 9,975.00 8,497.92 35.46 215.42 -36.12 -2,553.69 -3,666.31 3.500 1,129.76 701.89 51929 Pass-Major Risk 11,975.00 9,017.68 10,000.00 8,518.95 35.46 215.42 -35.30 -2,561.82 -3,67725 3.500 1,114.77 701.88 500.00 Pass-Major Risk 11,975.00 9,017.68 10,025.00 8,539.77 35.46 215.42 -34.50 -2,570.77 -3,687.65 3.500 1,099.09 701.83 480.21 Pass-Major Risk 11,975.00 9,017.68 11,100.00 8,931.27 35.46 215.53 -49.50 -3,450.90 -3,53423 3.500 128.62 699.99 -397.20 FAIL-Major Risk 11,982.73 9,017.61 11,075.00 8,929.93 35.49 215.53 -44.78 -3,428.56 -3,545.38 3.500 148.26 705.77 -422.00 FAIL-Major Risk 11,98529 9,017.59 10,050.00 8,560.47 35.51 215.42 -34.92 -2,580.93 -3,697.30 3.500 1,082.61 709.33 451.97 Pass-Major Risk 11,988.14 9,017.57 11,050.00 8,928.64 35.52 215.52 -41.11 -3,406.22 -3,556.54 3.500 169.08 709.73 -431.91 FAIL-Major Risk 11,988.59 9,017.57 10,075.00 8,581.10 35.52 215.42 -34.51 -2,591.97 -3,706.08 3.500 1,065.59 711.67 428.63 Pass-Major Risk 11,993.09 9,017.55 11,025.00 8,927.45 35.54 215.52 -38.31 -3,383.84 -3,567.61 3.500 190.89 713.32 -432.96 FAIL-Major Risk 12,000.00 9,017.54 10,100.00 8,601.46 35.57 215.42 -35.08 -2,604.04 -3,714.13 3.500 1,048.01 719.59 399.11 Pass-Major Risk 12,000.00 9,017.54 10,125.00 8,621.26 35.57 215.42 -34.31 -2,617.32 -3,721.63 3.500 1,029.56 719.56 377.14 Pass-Major Risk 12,000.00 9,017.54 10,150.00 8,640.48 35.57 215.42 -33.58 -2,631.66 -3,728.69 3.500 1,010.55 719.54 354.84 Pass-Major Risk 12,000.00 9,017.54 10,175.00 8,659.09 35.57 215.43 -32.87 -2,647.05 -3,735.15 3.500 990.96 719.52 332.18 Pass-Major Risk 12,000.00 9,017.54 10,200.09 8,677.12 35.57 215.43 -3220 -2,663.58 -3,740.70 3.500 970.58 719.49 308.94 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2.10:00PM Page 6 COMPASS 5000.1 Build 61 Hill BP BAKER HUGHES Travelling Cylinder Report bp 1VTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 ''r a-: Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-21-E-21 A-E-21A Offset Site Error: 0.00 usft Survey Program: 106-BOSS-GYRO,9958-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +Ni$ *El-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usff) 12,000.00 9,017.54 10,975.00 8,925.47 35.57 215.52 -34.14 -3,338.94 -3,589.52 3.500 235.48 71825 417.73 FAIL-Major Risk 12,000.00 9,017.54 11,000.00 8,926.39 35.57 215.52 -36.39 -3,361.40 -3,578.58 3.500 212.89 718.19 -429.70 FAIL-Major Risk 12,005.74 9,017.54 10,950.00 8,924.72 35.59 215.52 -32.93 -3,316.48 -3,600.47 3.500 258.35 722.19 -407.10 FAIL-Major Risk 12,006.86 9,017.54 10,225.00 8,694.34 35.60 215.43 -32.37 -2,681.01 -3,745.21 3.500 949.59 724.08 280.52 Pass-Major Risk 12,009.42 9,017.55 10,925.00 8,924.15 35.61 215.52 -31.75 -3,294.02 -3,611.43 3.500 281.47 724.70 -393.05 FAIL-Major Risk 12,009.45 9,017.55 10,250.00 8,710.83 35.61 215.43 -32.08 -2,699.44 -3,748.80 3.500 927.91 725.76 254.65 Pass-Major Risk 12,015.00 9,017.57 10275.00 8,726.41 35.63 215.44 -32.18 -2,718.84 -3,751.14 3.500 905.52 729.33 228.34 Pass-Major Risk 12,015.00 9,017.57 10,300.00 8,741.39 35.63 215.44 -31.66 -2,738.83 -3,752.08 3.500 882.54 729.31 201.38 Pass-Major Risk 12,015.00 9,017.57 10,325.00 8,756.04 35.63 215.44 -31.14 -2,759.09 -3,752.15 3.500 859.33 72928 178.24 Pass-Major Risk 12,015.00 9,017.57 10,350.00 8,770.48 35.63 215.44 -30.81 -2,779.50 -3,751.87 3.500 836.03 729.26 151.02 Pass-Major Risk 12,015.00 9,017.57 10,875.00 8,923.81 3563 215.51 -29.72 -3,248.96 -3,633.10 3.500 328.19 728.45 -359.90 FAIL-Major Risk 12,015.00 9,017.57 10,900.00 8,923.84 35.63 215.51 -30.99 -3,271.52 -3,622.32 3.500 304.77 728.39 -378.88 FAIL-Major Risk 12,018.89 9,017.59 10,375.00 8,784.68 35.65 215.45 -30.51 -2,800.05 -3,750.70 3.500 812.61 731.63 123.36 Pass-Major Risk 12,018.93 9,017.59 10,850.00 8,923.96 35.65 215.51 -29.06 -3,226.36 -3,643.78 3.500 351.76 731.07 -342.54 FAIL-Major Risk 12,020.25 9,017.59 10,400.00 8,798.93 35.66 215.45 -30.12 -2,820.56 -3,749.64 3.500 789.30 732.60 97.09 Pass-Major Risk 12,021.67 9,017.60 10,825.00 8,924.04 35.66 215.51 -28.41 -3,203.73 -3,654.42 3.500 375.52 732.88 -323.54 FAIL-Major Risk 12,021.76 9,017.60 10,425.00 8,813.08 35.66 215.45 -29.69 -2,841.12 -3,748.29 3.500 765.99 733.53 70.84 Pass-Major Risk 12,025.00 9,01761 10,450.00 8,826.79 35.68 215.46 -29.48 -2,861.94 -3,746.39 3.500 742.52 735.55 43.44 Pass-Major Risk 12,025.00 9,01761 10,475.00 8,839.78 35.68 215.46 -28.91 -2,883.16 -3,743.86 3.500 718.79 735.52 17.95 Pass-Major Risk 12,025.00 9,017.61 10,500.00 8,852.09 35.68 215.48 -28.36 -2,904.70 -3,740.84 3.500 694.88 735.49 -7.61 FAIL-Major Risk 12,025.00 9,017.61 10,525.00 8,863.75 35.68 215.47 -27.83 -2,926.52 -3,737.26 3.500 670.78 735.46 -33.21 FAIL-Major Risk 12,025.00 9,017.61 10,550.00 8,874.73 35.68 215.47 -27.33 -2,948.61 -3,733.20 3.500 646.53 735.43 -58.85 FAIL-Major Risk 12,025.00 9,017.61 10,575.00 8,884.86 35.68 215.47 -2628 -2,971.02 -3,728.73 3.500 622.10 73529 -84.49 FAIL-Major Risk 12,025.00 9,017.61 10,600.00 8,893.74 35.68 215.48 -26.51 -2,993.86 -3,723.81 3.500 597.45 735.36 -110.09 FAIL-Major Risk 12,025.00 9,017.61 10,625.00 8,901.30 35.68 215.48 -26.26 -3,017.04 -3,718.33 3.500 572.81 735.32 -135.58 FAIL-Major Risk 12,025.00 9,017.61 10,650.00 8,907.89 35.68 215.48 -26.08 -3,040.46 -3,712.56 3.500 547.68 735.29 -160.94 FAIL-Major Risk 12,025.00 9,017.61 10,675.00 8,913.37 35.68 215.49 -26.01 -3,064.09 -3,706.53 3.500 522.70 73525 -186.09 FAIL-Major Risk 12,025.00 9,017.61 10,700.00 8,917.58 35.68 215.49 -26.09 -3,087.87 -3,700.04 3.500 497.71 735.22 -210.88 FAIL-Major Risk 12,025.00 9,017.61 10,725.00 8,920.49 35.68 215.50 -26.33 -3,111.60 -3,692.77 3.500 472.81 735.18 -235.19 FAIL-Major Risk 12,025.00 9,017.81 10,750.00 8,922.59 35.68 215.50 -28.70 -3,135.15 -3,684.64 3.500 448.03 735.14 -259.02 FAIL-Major Risk 12,025.00 9,017.61 10,775.00 8,923.69 35.68 215.50 -27.25 -3,15828 -3,87525 3.500 423.55 735.09 -282.05 FAIL-Major Risk 12,025.00 9,017.61 10,800.00 8,924.02 35.68 215.50 -27.96 -3,181.07 -3,664.98 3.500 399.42 735.04 -304.21 FAIL-Major Risk 12,660.72 9,017.87 12,500.00 8,966.68 39.68 215.88 139.55 -4,727.15 -3,323.79 3.500 1,122.69 807.47 315.42 Pass-Major Risk 12,675.00 9,017.88 12,525.00 8,969.25 39.79 215.90 141.12 -4,746.65 -3,339.22 3.500 1,126.61 80927 317.49 Pass-Major Risk 12,675.00 9,017.88 12,550.00 8,971.82 39.79 215.91 140.98 -4,766.21 -3,354.58 3.500 1,130.85 809.29 321.67 Pass-Major Risk 12,675.00 9,017.88 12,575.00 8,973.41 39.79 215.93 140.90 -4,785.84 -3,369.97 3.500 1,135.70 809.32 326.48 Pass-Major Risk 12,689.82 9,017.88 12,600.00 8,973.83 39.91 215.95 142.64 -4,805.51 -3,385.39 3.500 1,140.81 810.52 330.38 Pass-Major Risk 12,700.00 9,017.88 12,625.00 8,973.88 39.99 215.97 143.85 -4,825.15 -3,400.86 3.500 1,146.35 810.94 335.49 Pass-Major Risk 12,700.00 9,017.88 12,650.00 8,973.66 39.99 215.99 143.85 -4,844.79 -3,416.33 3.500 1,152.26 810.96 341.37 Pass-Major Risk 12,71124 9,01727 12,675.00 8,973.37 40.08 216.01 14520 4,86440 -3,431.83 3.500 1,158.45 811.04 347.47 Pass-Major Risk 12,725.00 9,017.86 12,700.00 8,973.19 40.19 216.03 146.85 -4,883.73 -3,447.69 3.500 1,184.64 810.59 354.11 Pass-Major Risk 12,725.00 9,017.86 12,725.00 8,973.10 40.19 216.06 146.85 -4,902.61 -3,46407 3.500 1,170.39 810.80 359.84 Pass-Major Risk 12,725.00 9,017.86 12,750.00 8,972.85 40.19 21608 146.85 -4,921.42 -3,480.54 3.500 1,176.55 810.81 385.99 Pass-Major Risk 12,739.34 9,017.83 12,775.00 8,972.97 40.31 216.10 148.55 4,940.38 -3,496.83 3.500 1,183.10 809.48 373.65 Pass-Major Risk 13,025.00 9,016.87 12,800.00 8,973.16 42.67 216.12 134.76 -4,959.12 -3,513.37 3.500 1,186.32 810.78 375.66 Pass-Major Risk 13,039.30 9,016.82 12,825.00 8,973.03 42.79 216.14 136.49 -4,977.07 -3,530.76 3.500 1,186.24 814.38 371.97 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 7 COMPASS 5000.1 Build 61 Mill BAKER B P e'mx HUGHES Travelling Cylinder Report bp 1NTEQ w Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-21-E-21A-E-21A Offset Site Error: 0.00 usft Survey Program: 106-BOSS-GYRO,9958-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +NIS +EI-W Hole Size Centre Distance Deviation (use) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 13,050.00 9,016.79 12,850.00 8,972.39 42.88 216.17 137.80 -4,99178 -3,54934 3,500 1,184.92 816.64 368.39 Pass-Major Risk 13,050.00 9,018.79 12,875.00 8,971.66 42.88 218.19 137.84 -5,009.82 -3,568.67 3.500 1,182.83 816.66 366.28 Pass-Major Risk 13,060.80 9,016.75 12,900.00 8,970.88 42.97 21621 139.18 -5,025.23 -3,588.18 3.500 1,180.79 818.57 362.34 Pass-Major Risk 13,075.00 9,016.71 12,925.00 8,970.14 43.10 216.24 140.92 -5,040.75 -3,607.77 3.500 1,179.11 820.49 358.73 Pass-Major Risk 13,075.00 9,016.71 12,950.00 8,969.64 43.10 216.28 140.94 -5,056.23 -3,627.39 3.500 1,177.59 820.50 357.20 Pass-Major Risk 13,075.00 9,016.71 12,975.00 8,969.69 43.10 216.29 140.94 -5,071.74 -3,647.00 3.500 1,176.60 820.52 356.21 Pass-Major Risk 13,089.61 9,016.66 13,000.00 8,970.51 43.23 216.31 142.66 -5,087.38 -3,666.48 3.500 1,175.99 821.81 354.28 Pass-Major Risk 13,100.00 9,016.62 13,025.00 8,972.00 43.32 216.34 143.83 -5,103.25 -3,685.74 3.500 1,176.16 822.31 353.92 Pass-Major Risk 13,100.00 9,016.62 13,050.00 8873.78 43.32 216.36 143.74 -5,119.37 -3,704.77 3.500 1,177.01 822.33 354.75 Pass-Major Risk 13,111.20 9,016.59 13,075.00 8,975.57 43.43 216.39 144.99 -5,135.43 -3,723.84 3.500 1,178.14 822.48 355.69 Pass-Major Risk 13,125.00 9,016.54 13,100.00 8,977.35 43.56 216.42 146.56 -5,151.39 -3,743.00 3.500 1,179.60 822.11 357.52 Pass-Major Risk 13,125.00 9,016.54 13,125.00 8,979.35 43.56 216.45 146.46 -5,167.41 -3,782.09 3.500 1,181.39 822.12 359.28 Pass-Major Risk 13,125.00 9,016.54 13,150.00 8,981.73 43.56 216.48 146.34 -5,183.56 -3,781.02 3.500 1,183.90 822.14 361.77 Pass-Major Risk 13,139.72 9,016.50 13,175.00 8,984.59 43.70 216.51 147.96 -5,199.94 -3,799.69 3.500 1,186.93 821.05 365.87 Pass-Major Risk 13,150.00 9,016.47 13,200.00 8,987.68 43.80 216.53 149.04 -5,216.50 -3,818.17 3.500 1,190.68 819.88 370.79 Pass-Major Risk 13,150.00 9,016.47 13,225.00 8,991.38 43.80 216.56 148.86 -5,233.15 -3,836.44 3.503 1,194.97 819.90 375.07 Pass-Major Risk 13,160.59 9,016.43 13,250.00 8,995.57 43.90 216.59 149.92 -5,249.85 -3,854.57 3.500 1,199.71 818.34 381.38 Pass-Major Risk 13,175.00 9,016.39 13,275.00 8,999.92 44.05 216.63 151.44 -5,286.53 -3,872.67 3.500 1,204.90 815.62 389.32 Pass-Major Risk 13,175.00 9,018.39 13,300.00 9,004.40 44.05 216.66 151.23 -5,283.10 -3,890.84 3.500 1,210.16 815.84 394.61 Pass-Major Risk 13,180.96 9,016.37 13,325.00 9,009.00 44.11 216.69 151.72 -5,299.80 -3,908.88 3.500 1,216.03 814.33 401.84 Pass-Major Risk 13,194.43 9,016.24 13,350.00 9,013.55 44.24 216.72 151.98 -5,316.45 -3,926.96 3.500 1,222.16 813.80 408.66 Pass-Major Risk 13,217.92 9,015.12 13,375.00 9,017.87 44.47 216.75 151.73 -5,333.06 -3,945.13 3.500 1,228.31 814.86 414.10 Pass-Major Risk 13,240.88 9,012.92 13,400.00 9,021.92 44.70 216.79 151.44 -5,349.77 -3,963.29 3.500 1,234.57 815.92 419.78 Pass-Major Risk 13,263.25 9,009.73 13,425.00 9,026.01 44.92 216.82 151.10 -5,366.30 -3,981.59 3.500 1,240.67 817.04 425.43 Pass-Major Risk 13,284.81 9,005.68 13,450.00 9,030.30 45.13 216.86 150.70 -5,382.89 -3,999.79 3.500 1,246.93 818.11 431.42 Pass-Major Risk 13,305.61 9,000.85 13,475.00 9,034.59 45.33 216.89 150.26 -5,399.49 -4,017.99 3.500 1,253.28 819.22 437.70 Pass-Major Risk 13,313.70 8,998.73 13,485.00 9,036.30 45.41 216.91 150.08 -5,406.12 -4,025.27 3.500 1,255.84 819.65 440.30 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 8 COMPASS 5000.1 Build 61 IGtill BP ,:., BAKER w b)t3 Travelling Cylinder Report 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Welibore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-21-E-21 B-E-21 B Offset Site Error: 0.00 usff Survey Program: 106-BOSS-GYRO,9958-MWD,10405-MWD Rule Assigned:Major Risk Offset Wet Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Tooaace+ Offset Welibore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +NI-S +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 11,841.03 9,022.05 11,300.00 9,01767 35.01 215.52 6.65 -2,395.71 -3,248.76 3.500 1,157.05 579.60 589.77 Pass-Major Risk 11,850.00 9,021.75 11,250.00 9,016.35 35.04 215.50 5.62 -2,426.70 -3,287.95 3.500 1,122.07 588.79 546.10 Pass-Major Risk 11,850.00 9,021.75 11,275.00 9,017.61 35.04 215.51 5.65 -2,411.12 -3,288.45 3.500 1,139.56 588.79 563.54 Pass-Major Risk 11,857.89 9,021.42 11,225.00 9,014.77 35.06 215.49 4.68 -2,443.07 -3,306.78 3.500 1,104.07 598.10 52057 Pass-Major Risk 11,865.00 9,021.08 11,175.00 9,012.39 35.08 215.48 3.82 -2,478.89 -3,341.55 3.500 1,065.75 605.06 475.80 Pass-Major Risk 11,865.00 9,021.08 11,200.00 9,013.42 35.08 215.49 3.83 -2,460.49 -3,324.65 3.500 1,085.27 805.07 495.09 Pass-Major Risk 11,875.00 9,020.58 11,100.00 9,008.74 35.11 215.47 2.46 -2,538.95 -3,386.23 3.500 1,003.52 814.79 403.39 Pass-Major Risk 11575.00 9,020.58 11,125.00 9,009.55 35.11 215.47 2.48 -2,518.41 -3,372.02 3.500 1,024.59 614.81 424.43 Pass-Major Risk 11,87500 5020.58 11,150.00 9,010.97 35.11 215.48 2.53 -2,498.32 -3,357.21 3.500 1,045.41 614.83 445.19 Pass-Major Risk 11,885.56 9,020.10 11,075.00 9,009.02 35.14 215.47 1.19 -2,560.18 -3,399.46 3.500 981.81 624.91 371.20 Pass-Major Risk 11,889.28 9,019.94 11,050.00 9,009.24 35.15 215.46 0.76 -2,582.22 -3,411.20 3.500 95945 62810 345.21 Pass-Major Risk 11,900.00 9,019.51 9,400.00 8,009.90 35.19 199.10 -41.33 -2,39481 -3,407.52 3.500 1,526.46 598.09 1,096.20 Pass-Major Risk 11,900.00 9,019.51 9,425.00 8,030.70 35.19 199.88 -40.92 -2,402.24 -3,419.10 3.500 1,50681 600.05 1,072.47 Pass-Major Risk 11,900.00 9,019.51 9,450.00 8,051.54 35.19 200.65 -40.49 -2,409.82 -3,430.63 3.500 1,487.34 602.00 1,048.84 Pass-Major Risk 11,900.00 9,019.51 10,925.00 9,007.61 35.19 215.48 -0.60 -2,89625 -3,462.25 3.500 845.32 838.22 220.85 Pass-Major Risk 11,900.00 9,019.51 10,950.00 9,006.88 35.19 21546 -0.86 -2,673.50 -3,451.90 3.500 867.90 638.25 243.48 Pass-Major Risk 11,900.00 9,019.51 10,975.00 9,006.82 35.19 215.46 -0.67 -2,650.62 -3,441.83 3.500 890.73 638.28 266.32 Pass-Major Risk 11,900.00 9,019.51 11,000.00 9,007.53 35.19 215.46 -0.64 -2,627.68 -3,431.94 3.500 91374 638.32 289.29 Pass-Major Risk 11,900.00 9,019.51 11,025.00 9,008.74 35.19 215.46 -0.57 -2,604.83 -3,421.86 3.500 93674 838.35 312.24 Pass-Major Risk 11,909.50 9,019.16 9,475.00 8,072.43 35.22 201.42 -41.20 -2,417.34 -3,442.13 3.500 1,467.93 612.31 1,017.41 Pass-Major Risk 11,911.12 9,019.10 10,900.00 9,008.98 35.23 215.46 -1.86 -2,718.70 -3,473.15 3.500 822.98 648.29 188.07 Pass-Major Risk 11,912.48 9,019.06 9,500.00 8,093.36 35.23 202.20 -41.11 -2,424.82 -3,453.57 3.500 1,448.74 616.87 991.39 Pass-Major Risk 11,915.49 9,018.96 9,525.00 8,114.33 35.24 202.96 -41.00 -2,43225 -3,464.98 3.500 1,429.72 621.42 965.42 Pass-Major Risk 11,915.82 9,018.95 10,875.00 9,010.76 35.24 215.45 -229 -2,740.54 -3,485.18 3.500 801.48 652.46 162.18 Pass-Major Risk 11,925.00 9,018.66 9,550.00 8,135.33 35.27 203.72 -41.66 -2,439.62 -3,476.36 3.500 1,410.94 631.48 934.42 Pass-Major Risk 11,925.00 9,018.66 9,575.00 8,156.37 35.27 204.48 -41.15 -2,446.93 -3,487.72 3.500 1592.27 833.46 910.94 Pass-Major Risk 11,925.00 9,018.66 9,600.00 8,177.45 35.27 205.23 -40.62 -2,454.17 -3,499.04 3.500 1,373.82 835.45 887.59 Pass-Major Risk 11,925.00 9,018.66 9,825.00 8,198.58 35.27 205.98 -40.07 -2,461.36 -3,510.34 3.500 1,355.60 837.41 864.39 Pass-Major Risk 11,925.00 9,018.66 9,650.00 8,219.71 35.27 206.72 -39.50 -2,468.48 -3,521.61 3.500 1,337.64 839.37 841.35 Pass-Major Risk 11,925.00 9,018.66 10,800.00 9,011.18 35.27 215.44 -3.31 -2,804.84 -3,523.65 3.500 73923 880.43 91.67 Pass-Major Risk 11,925.00 9,018.66 10,825.00 9,01225 35.27 215.45 -3.26 -2,783.67 -3,510.41 3.500 759.48 660.45 111.88 Pass-Major Risk 11,925.00 9,018.66 10,850.00 9,011.96 35.27 215.45 -3.30 -2,762.18 -3,497.64 3.500 780.35 660.48 132.77 Pass-Major Risk 11,934.12 9,018.41 9,675.00 8,240.90 35.31 207.47 -40.02 -2,475.53 -3,532.85 3.500 1,319.82 649.00 810.95 Pass-Major Risk 11,937.33 9,018.33 9,700.00 8,262.13 35.32 208.21 -39.80 -2,482.51 -3,544.05 3.500 1,302.29 653.63 785.51 Pass-Major Risk 11,937.98 9,018.32 10,775.00 9,008.99 35.32 21544 -5.04 -2,825.61 -3,537.39 3.500 719.44 871.44 60.88 Pass-Major Risk 11,940.58 9,018.26 9,725.00 8,283.40 35.33 208.94 -39.56 -2,489.42 -3,555.22 3.500 1,285.02 65825 760.20 Pass-Major Risk 11,950.00 9,018.05 9,750.00 8,304.71 35.37 209.87 -40.05 -2,496.23 -3,568.38 3.500 1,288.08 667.85 73025 Pass-Major Risk 11,950.00 9,018.05 9,775.00 8,326.07 35.37 210.39 -39.38 -2,502.95 -3,577.51 3.500 1,251.35 689.83 707.77 Pass-Major Risk 11,950.00 9,018.05 9,800.00 8,347.48 35.37 211.12 -38.88 -2,509.57 -3,58862 3.500 1,234.95 872.31 685.54 Pass-Major Risk 11,950.00 9,018.05 9,825.00 8,368.89 35.37 211.84 -37.96 -2,516.07 -3,599.73 3.500 1,218.93 674.29 663.60 Pass-Major Risk 11,950.00 9,018.05 9,850.00 8,390.35 35.37 212.55 -3721 -2,522.46 -3,610.85 3.500 1,203.28 87827 641.95 Pass-Major Risk 11,950.00 9,018.05 10,725.00 9,000.36 35.37 215.44 -7.18 -2,864.14 -3,567.82 3.500 684.03 681.30 15.59 Pass-Major Risk 11,950.00 9,018.05 10,750.00 9,005.85 35.37 215.44 -6.73 -2,845.78 -3,551.81 3.500 70067 881.31 31.93 Pass-Major Risk 11,960.01 9,017.87 10,700.00 8,992.47 35.40 215.44 -9.06 -2,879.91 -3,585.51 3.500 670.63 689.28 -5.52 FAIL-Major Risk 11,960.59 9,017.86 9,875.00 8,411.84 35.41 213.26 -37.71 -2,528.75 -3,621.97 3.500 1,187.88 686.55 612.03 Pass-Major Risk 11,964.05 9,017.81 9,900.00 8,433.35 35.42 213.97 -37.33 -2,534.95 -3,633.10 3.500 1,172.91 691.19 588.14 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 9 COMPASS 5000.1 Build 61 Ufill BP BAKER HUGHES Travelling Cylinder Report bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E21-E-21 B-E-21 B Offset Site Error: 0.00 usft Survey Program: 106-BOSS-GYRO,9958-MWD,10405-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Tooltace+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/3 +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 11,975.00 9,017.68 9,925.00 8,454.90 35.46 214.67 -37.82 -2,541.07 -3,64421 3.500 1,158.39 701.39 558.93 Pass-Major Risk 11,975.00 9,017.68 9,950.00 8,47646 35.46 215.31 -36.98 -2,547.19 -3,855.27 3.500 1,144.03 702.56 538.38 Pass-Major Risk 11,975.00 9,017.68 9,975.00 8,497.92 35.46 215.42 -36.12 -2,553.69 -3,666.31 3.500 1,129.76 701.89 519.29 Pass-Major Risk 11,975.00 9,017.68 10,000.00 8,518.95 35.46 215.42 -35.30 -2,561.82 -3,677.25 3.500 1,114.77 701.88 500.00 Pass-Major Risk 11,975.00 9,017.68 10,025.00 8,539.77 35.46 215.42 -34.50 -2,570.77 -3,887.65 3.500 1,099.09 701.83 480.21 Pass-Major Risk 11,975.00 9,017.68 10,650.00 8,969.09 35.46 215.44 -12.90 -2,902.31 -3,623.32 3.500 655.01 700.82 -31.05 FAIL-Major Risk 11,975.00 9,017.68 10,675.00 8,982.02 35.46 215.44 -11.78 -2,892.89 -3,604.24 3.500 660.95 700.78 -26.24 FAIL-Major Risk 11,985.29 9,017.59 10,050.00 8,560.47 35.51 215.42 -34.92 -2,580.93 -3,697.30 3.500 1,082.61 709.33 451.97 Pass-Major Risk 11,985.74 9,017.59 10,625.00 8,954.46 35.51 215.45 -15.46 -2,908.53 -3,642.59 3.500 653.29 708.73 -39.36 FAIL-Major Risk,CC 11,988.59 9,017.57 10,075.00 8,581.10 35.52 215.42 -34.51 -2,59107 -3,706.08 3.500 1,065.59 711.67 428.63 Pass-Major Risk 12,000.00 9,017.54 10,100.00 8,601.46 35.57 215.42 -35.08 -2,604.04 -3,714.13 3.500 1,048.01 719.59 399.11 Pass-Major Risk 12,000.00 9,017.54 10,125.00 8,621.26 35.57 215.42 -34.31 -2,61722 -3,721.63 3.500 1,029.56 719.56 377.14 Pass-Major Risk 12,000.00 9,017.54 10,150.00 8,640.48 35.57 215.42 -33.58 -2,631.66 -3,728.69 3.500 1,010.55 719.54 354.84 Pass-Major Risk 12,000.00 9,017.54 10,175.00 8,659.09 35.57 215.43 -32.87 -2,647.05 -3,735.15 3.500 990.96 719.52 332.18 Pass-Major Risk 12,000.00 9,017.54 10,200.09 8,677.12 35.57 215.43 -32.20 -2,66258 -3,740.70 3.500 970.58 719.49 308.94 Pass-Major Risk 12,000.00 9,017.54 10,575.00 8,920.62 35.57 215.45 -20.02 -2,910.77 -3,679.07 3.500 662.02 718.87 -36.46 FAIL-Major Risk 12,000.00 9,017.54 10,600.00 8,938.16 35.57 215.45 -18.56 -2,911.37 -3,661.29 3.500 655.71 718.79 -45.28 FAIL-Major Risk,ES,SF 12,006.86 9,017.54 10,22500 8,694.34 35.60 215.43 -32.37 -2,681.01 -3,745.21 3.500 949.59 724.08 280.52 Pass-Major Risk 12,007.46 9,017.54 10,550.00 8,902.46 35.60 215.45 -22.34 -2,906.62 -3,695.71 3.500 672.35 723.98 -28.50 FAIL-Major Risk 12,009.45 9,017.55 10,250.00 8,710.83 35.61 215.43 -32.08 -2,699.44 -3,748.80 3.500 927.91 725.76 254.65 Pass-Major Risk 12,015.00 9,017.57 10,27500 8,726.41 35.63 215.44 -32.18 -2,718.84 -3,751.14 3.500 905.52 729.33 226.34 Pass-Major Risk 12,015.00 9,017.57 10,30000 8,741.39 35.63 215.44 -31.66 -2,738.83 -3,752.08 3.500 882.54 729.31 201.38 Pass-Major Risk 12,015.00 9,017.57 10,325.00 8,756.04 35.63 215.44 -31.14 -2,759.09 -3,752.15 3.500 859.33 729.28 17624 Pass-Major Risk 12,015.00 9,017.57 10,350.00 8,770.48 35.63 215.44 -30.61 -2,779.50 -3,751.67 3.500 836.03 729.26 151.02 Pass-Major Risk 12,015.00 9,017.57 10,50000 8,866.14 35.63 215.45 -25.81 -2,887.78 -3,724.11 3.500 703.87 729.02 3.82 Pass-Major Risk 12,015.00 9,017.57 10,52500 8,884.27 35.63 215.45 -24.57 -2,898.80 -3,710.92 3.500 686.49 728.95 -16.46 FAIL-Major Risk 12,018.69 9,017.59 10,375.00 8,784.68 35.65 215.45 -30.51 -2,800.05 -3,750.70 3.500 812.61 731.63 123.36 Pass-Major Risk 12,019.82 9,017.59 10,47500 8,647.72 35.65 215.45 -27.56 -2,874.57 -3,734.61 3.500 722.72 732.20 22.99 Pass-Major Risk 12,020.25 9,017.59 10,400.00 8,798.93 35.66 215.45 -30.12 -2,820.56 -3,749.64 3.500 789.30 732.60 97.09 Pass-Major Risk 12,021.27 9,017.60 10,450.00 8,829.92 35.66 215.45 -28.76 -2,858.88 -3,742.39 3.500 743.62 733.18 46.03 Pass-Major Risk 12,021.39 9,017.60 10,425.00 8,813.65 35.66 215.45 -29.60 -2,840.62 -3,747.45 3.500 766.10 733.30 71.04 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 10 COMPASS 5000.1 Build 61 HIM BP BAKER Travelling Cylinder Report 0 bp (NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-25-E-25-E-25 Offset Site Error: 0.00 usft Survey Program: 311-GCT-MS,100-GCT-MS Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface+ Offset Wellbo re Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 10,900.02 9,029.64 10,900.02 9,029.64 0.00 0.00 -147.80 -3,33928 -2,572.02 3.500 0.00 0.29 -0.29 FAIL-Major Risk,CC 10,925.00 9,026.68 10,925.00 9,026.68 0.22 0.22 27.75 -3,360.30 -2,585.19 3.500 0.00 1.84 -1.25 FAIL-Major Risk 10,950.00 9,023.68 10,950.00 9,023.68 0.43 0.44 27.47 -3,381.39 -2,59828 3.500 0.00 3.39 -2.21 FAIL-Major Risk 10,974.98 9,021.14 10,975.00 9,020.65 0.63 0.66 169.31 -3,402.53 -2,61127 3.500 0.54 4.88 -3.50 FAIL-Major Risk,ES,SF 10,999.86 9,019.15 11,000.02 9,017.58 0.82 0.87 167.18 -3,423.74 -2,624.18 3.500 2.38 6.37 -3.09 FAIL-Major Risk 11,024.44 9,018.02 11,025.00 9,014.50 1.01 1.08 167.56 -3,444.94 -2,637.02 3.500 5.55 7.79 -1.22 FAIL-Major Risk 11,048.65 9,017.62 11,050.00 9,011.42 1.20 1.28 168.93 -3,466.17 -2,649.87 3.500 9.99 9.19 1.96 Pass-Major Risk 11,072.38 9,017.92 11,075.00 9,008.35 1.39 1.48 170.84 -3,487.40 -2,662.71 3.500 15.66 10.55 6.42 Pass-Major Risk 11,095.68 9,018.54 11,100.02 9,005.27 1.58 1.69 172.04 -3,508.65 -2,675.56 3.500 22.43 11.88 11.91 Pass-Major Risk 11,118.32 9,019.24 11,125.00 9,002.15 1.77 1.90 172.87 -3,529.87 -2,688.35 3.500 30.23 13.18 18.41 Pass-Major Risk • 11,140.27 9,020.00 11,150.00 8,998.97 1.95 2.11 173.63 -3,551.13 -2,701.11 3.500 39.11 14.41 26.01 Pass-Major Risk • 11,161.45 9,020.81 11,175.00 8,995.71 2.13 2.32 174.45 -3,572.42 -2,713.82 3.500 49.02 15.57 34.72 Pass-Major Risk 11,181.82 9,021.67 11,200.02 8,992.37 2.29 2.54 175.34 -3,593.74 -2,726.48 3.500 59.94 16.65 44.50 Pass-Major Risk 11,200.00 9,022.49 11,225.00 8,988.99 2.44 2.76 176.14 -3,615.05 -2,739.06 3.500 71.80 17.64 55.31 Pass-Major Risk 11,219.95 9,023.45 11,250.00 8,985.59 2.80 2.97 177.26 -3,636.42 -2,751.59 3.500 84.54 18.82 67.02 Pass-Major Risk 11,237.71 9,024.36 11,275.00 8,982.16 2.75 3.19 17825 -3,657.82 -2,764.04 3.500 98.14 19.49 79.69 Pass-Major Risk 11,254.61 9,025.27 11,300.02 8,978.71 2.88 3.41 17925 -3,67928 -2,776.44 3.500 112.54 20.28 93.24 Pass-Major Risk 11,270.66 9,028.17 11,325.00 8,975.27 3.01 3.61 -179.78 -3,700.72 -2,788.78 3.500 127.63 20.95 107.60 Pass-Major Risk 11,285.94 9,027.07 11,350.00 8,971.85 3.13 3.81 -178.77 -3,722.18 -2,801.15 3.500 143.33 21.56 122.66 Pass-Major Risk 11,300.00 9,027.92 11,375.00 8,968.46 324 4.01 -177.85 -3,743.63 -2,813.53 3.500 159.61 22.10 138.35 Pass-Major Risk 1 11,31427 9,028.82 11,400.02 8,965.10 3.35 4.21 -176.86 -3,765.10 -2,825.93 3.500 176.43 22.60 154.63 Pass-Major Risk 11,325.00 9,029.50 11,425.00 8,961.77 3.44 4.41 -176.22 -3,786.52 -2,838.34 3.500 193-72 23.01 171.45 Pass-Major Risk 11,340.58 9,030.42 11,450.00 8,958.48 3.56 4.60 -175.04 -3,807.94 -2,850.80 3.500 211.37 23.40 188.61 Pass-Major Risk 11,350.00 9,030.92 11,475.00 8,955.23 3.63 4.79 -174.51 -3,829.34 -2,863.31 3.500 229.43 23.74 206.26 Pass-Major Risk 11,384.72 9,031.63 11,500.02 8,952.02 3.75 4.99 -173.37 -3,850.74 -2,875.87 3.500 247.80 24.02 224.25 Pass-Major Risk 11,375.00 9,032.07 11,525.00 8,948.83. 3.83 5.09 -17270 -3,872.09 -2,888.44 3.500 266.51 24.13 242.64 Pass-Major Risk 11,382.47 9,032.35 11,540.10 8,946.90 3.89 5.15 -172.14 -3,885.00 -2,896.04 3.500 277.98 24.22 253.93 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10.00PM Page 11 COMPASS 5000.1 Build 61 NII•II BP BAILER IRJOHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 `""'"' "` " ' Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft 0,-,..._<1.- < (generic drilling rig) f F (9 9 9) r Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft . (generic drilling rig) �°=� Site Error: 0.00 usft North Reference: True , rr ru Reference Well: E-25 Survey Calculation Method: Minimum Curvature ,:a, »°s; +r` Well Error: 0.00 usft Output errors are at 1.00 sigma ,y °`' Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 1/ Reference Design: Plan 4 Offset TVD Reference: Offset Datum p, .ti' , ,, Offset Design PB E Pad- E-37-E-37-E-37 offset site Error: 0.00 usft Survey Program: 210-MOOD,10951-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +El-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 11,850.00 9.021.75 8,900.00 7,703.73 35.04 48.95 -53.15 -2,759.31 -3,26463 7.437 1,536.02 223.33 1,412.72 Pass-Major Risk 11,857.99 9,021.41 8,925.00 7,723.62 35.06 49.14 -54.01 -2,768.98 -3,276.49 7.437 1,513.10 226.24 1,389.04 Pass-Major Risk 11,865.00 9,021.08 8,950.00 7,743.51 35.08 49.33 -54.75 -2,778.59 -3,288.20 7.437 1,490.21 228.82 1,365.44 Pass-Major Risk 11,868.49 9,020.90 8,975.00 7,763.45 35.09 49.51 -55.11 -2,788.08 -3,299.93 7.437 1,467.39 230.26 1,341.33 Pass-Major Risk 11,875.00 9,020.58 9,000.00 7,783.48 35.11 49.69 -55.84 -2,797.39 -3,311.68 7.437 1,444.84 232.60 1,316,48 Pass-Major Risk 11,875.00 9,020.58 9,025.00 7,803.55 35.11 49.87 -55.75 -2,806.53 -3,323.40 7.437 1,421.95 232.99 1,293.37 Pass-Major Risk 11,875.00 9,020.58 9,050.00 7,823.71 35.11 50.04 -55.64 -2,815.51 -3,335.14 7.437 1,399.37 233.37 1,270.34 Pass-Major Risk 11,875.00 9,020.58 9,075.00 7,843.90 35.11 50.21 -55.53 -2,824.44 -3,346.88 7.437 1,376.86 233.74 1,247.39 Pass-Major Risk 11,885.99 9,020.08 9,100.00 7,864.10 35.14 50.39 -56.76 -2,833.36 -3,358.61 7.437 1,354.32 237.41 1221.45 Pass-Major Risk 11,889.68 9,019.92 9,125.00 7,884.31 35.16 50.56 -57.09 -2,842.26 -3,370.32 7.437 1,331.89 238.89 1,197.55 Pass-Major Risk 11,900.00 9,019.51 9,150.00 7,904.54 35.19 50.73 -58.22 -2,851.13 -3,382.03 7.437 1,309.57 242.30 1,172.01 Pass-Major Risk 11,900.00 9,019.51 9,175.00 7,924.79 35.19 50.90 -58.07 -2,85992 -3,393.75 7.437 1,287.25 242.70 1,149.12 Pass-Major Risk 11,900.00 9,019.51 9,200.00 7,945.08 35.19 51.07 -57.91 -2,868.63 -3,405.49 7.437 1,265.05 243.09 1,126.32 Pass-Major Risk 11,900.00 9,019.51 9,225.00 7,965.39 35.19 51.24 -57.73 -2,877.25 -3,417.24 7.437 1,242.98 243.49 1,103.64 Pass-Major Risk 11,909.24 9,019.17 9,250.00 7,985.69 35.22 51.43 -58.68 -2,885.88 -3,429.01 7.437 1,220.94 246.60 1,078.49 Pass-Major Risk 11,913.39 9,019.03 9,275.00 8,005.92 35.23 51.82 -59.00 -2,894.64 -3,440.79 7.437 1,198.98 248.22 1,054.77 Pass-Major Risk 11,925.00 9,018.66 9,300.00 8,026.09 35.27 51.80 -60.23 -2,903.53 -3,452.59 7.437 1,177.16 251.94 1,029.22 Pass-Major Risk 11,925.00 9,018.66 9,325.00 8,046.19 35.27 51.99 -60.03 -2,912.55 -3,464.41 7.437 1,155.29 252.39 1,006.62 Pass-Major Risk 11,925.00 9,018.66 9,350.00 8,066.19 35.27 52.19 -59.83 -2,921.75 -3,478.25 7.437 1,133.53 252.85 984.12 Pass-Major Risk 11,925.00 9,018.68 9,375.00 8,086.10 35.27 52.40 -59.64 -2,931.10 -3,488.14 7.437 1,111.91 253.32 961.75 Pass-Major Risk 11,935.56 9,018.38 9,400.00 8,105.93 35.31 52.60 -60.71 -2,940.48 -3,500.12 7.437 1,090.34 256.74 936.63 Pass-Major Risk 11,940.34 9,018.26 9,425.00 8,125.70 35.33 52.80 -61.07 -2,949.91 -3,512.17 7.437 1,068.95 258.52 913.18 Pass-Major Risk 11,950 00 9,018.05 9,450.00 8,145.46 35.37 53.00 -62.01 -2,959.42 -3,524.18 7.437 1,047.64 261.60 888.54 Pass-Major Risk 11,950.00 9,018.05 9,475.00 8,165.23 35.37 53.20 -61.77 -2,969.01 -3,536.10 7.437 1,026.34 262.07 866.35 Pass-Major Risk 11,950.00 9,018.05 9,500.00 8,185.00 35.37 53.40 -61.53 -2,978.69 -3,547.95 7.437 1,005.14 262.55 844.24 Pass-Major Risk 11,960.18 9,017.87 9,525.00 8,204.79 35.40 53.59 -62.49 -2,988.41 -3,559.74 7.437 983.95 265.70 819.48 Pass-Major Risk 11,965.35 9,017.79 9,55100 8,224.61 35.43 53.77 -62.83 -2,998.07 -3,571.52 7.437 962.93 267.49 796.13 Pass-Major Risk 11,975.00 9,017.68 9,575.00 8,244.47 35.46 53.96 -63.67 -3,007.65 -3,583.31 7.437 942.06 270.41 771.75 Pass-Major Risk 11,975.00 9,017.68 9,600.00 8,264.36 35.46 54.14 -63.34 -3,017.15 -3,595.11 7.437 921.30 270.87 749.83 Pass-Major Risk 11,975.00 9,017.68 9,625.00 8,284.29 35.46 54.32 -62.99 -3,026.57 -3,606.89 7.437 900.76 271.31 728.09 Pass-Major Risk 11,987.00 9,017.58 9,650.00 8,304.27 35.51 54.50 -6492 -3,035.93 -3,618.65 7.437 880.26 274.74 703.25 Pass-Major Risk 11,992.64 9,017.55 9,675.00 8,324.30 35.54 54.68 -64.27 -3,045.22 -3,630.38 7.437 859.96 276.55 680.15 Pass-Major Risk 12,000.00 9,017.54 9,700.00 8,344.38 35.57 54.85 -64.69 -3,054.43 -3,642.07 7.437 839.83 27875 656.71 Pass-Major Risk 12,000.00 9,017.54 9,725.00 8,364.52 35.57 55.03 -6420 -3,063.49 -3,653.79 7.437 819.95 279.20 635.21 Pass-Major Risk 12,010.12 9,017.55 9,750.00 8,384.77 35.61 55.20 -64.85 -3,07228 -3,665.53 7.437 800.28 282.01 611.29 Pass-Major Risk 12,015.00 9,017.57 9,775.00 8,405.16 35.63 55.38 -64.82 -3,080.75 -3,677.25 7.437 780.92 283.59 588.81 Pass-Major Risk 12,025.00 9,017.61 9,800.00 8,425.45 35.68 55.57 -65.37 -3,089.17 -3,689.19 7.437 761.92 286.40 565.80 Pass-Major Risk 12,025.00 9,017.61 9,825.00 8,445.31 35.68 55.77 -64.69 -3,097.58 -3,701.82 7.437 743.63 286.94 545.29 Pass-Major Risk 12,038.44 9,017.66 9,850.00 8,464.52 35.74 55.98 -65.59 -3,106.06. -3,715.39 7.437 726.15 290.50 522.88 Pass-Major Risk 12,050.00 9,017.69 9,87590 8,482.99 35.79 56.21 -66.25 -3,114.80 -3,729.79 7.437 709.56 293.55 501.69 Pass-Major Risk 12,050.00 9,017.69 9,900.00 8,500.87 35.79 56.44 -65.52 -3,123.71 -3,744.81 7.437 693.73 294.19 483.36 Pass-Major Risk 12,064.82 9,017.72 9,925.00 8,518.50 35.86 56.68 -66.48 -3,132.66 -3,760.12 7.437 678.40 297.75 462.65 Pass-Major Risk 12,075.00 9,017.73 9,950.00 8,535.96 35.91 56.91 -66.88 -3,141.57 -3,775.64 7.437 663.66 300.35 443.21 Pass-Major Risk 12,083.13 9,017.73 9,975.00 8,553.08 35.96 57.16 -66.97 -3,150.43 -3,791.55 7.437 649.66 302.48 424.78 Pass-Major Risk 12,092.83 9,017.72 10,000.00 8,569.62 36.00 57.41 -67.21 -3,159.27 -3,808.08 7.437 636.68 304.89 406.99 Pass-Major Risk 12,100.00 9,017.71 10,025.00 8,585.77 36.04 57.66 -67.08 -3,167.90 -3,825.10 7.437 62470 306.84 390.47 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:OOPM Page 12 COMPASS 5000.1 Build 61 RIM! BP BAKER Travelling Cylinder Report 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-37-E-37-E-37 Offset Site Error: 0.00 usft Survey Program: 210-MWD,10951-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +NIS +EI-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 12,112.76 9,017.69 10,050.00 8,601.67 36.11 57.92 -67.56 -3,176.51 -3,842.36 7.437 613.42 309.62 373.63 Pass-Major Risk 12,125.00 9,017.66 10,075.00 8,617.48 36.17 58.17 -67.93 -3,185.08 -3,859.73 7.437 602.80 312.15 35746 Pass-Major Risk • • 12,132.88 9,017.63 10,100.00 8,633.26 36.21 58.43 -67.70 -3,193.65 -3,877.13 7.437 592.73 313.94 342.42 Pass-Major Risk 12,142.93 9,017.59 10,125.00 8,649.01 36.27 5868 -6769 -3,202.38 -3,89447 7.437 583.11 315.92 327.46 Pass-Major Risk 12,150.00 9,017.55 10,150.00 8,664.78 36.31 58.92 -67.24 -3,21163 -3,911.83 7.437 574.16 317.46 313.51 Pass-Major Risk • 12,162.92 9,017.48 10,17560 8,680.53 3668 59.17 -67.43 -3,219.62 -3,929.25 7.437 565.87 320.16 29637 Pass-Major Risk • 12,175.00 9,017.40 10,200.00 8,696.21 36.44 5943 -6745 -3,228.18 -3,946.73 7437 558.34 321.95 286.12 Pass-Major Risk ' 12,182.77 9,017.35 10,225.00 8,71160 36.49 5968 -66.90 -3,236.79 -3,964.19 7.437 551.44 32326 27467 Pass-Major Risk 12,192.58 9,017.27 10,250.00 8,727.66 36.54 59.92 -66.54 -3,245.45 -3,981.55 7.437 545.14 324.57 262.46 Pass-Major Risk 12,200.00 9,017.21 10,275.00 8,74362 36.58 60.16 -65.82 -3,254.16 -3,998.80 7.437 539.45 325.66 25178 Pass-Major Risk 12,215.00 9,017.07 10,300.00 8,759.44 36.67 60.40 -65.99 -3,263.21 -4,015.83 7.437 534.13 326.97 240.95 Pass-Major Risk 12,343.98 9,016.73 10,325.00 8,77630 3752 6665 -49.89 -3,272.16 -4,032.95 7.437 527.31 321.71 242.82 Pass-Major Risk 12,350.00 9,016.75 10,350.00 8,791.14 37.56 6689 -49.11 -3,28065 -4,05023 7.437 519.50 32343 23023 Pass-Major Risk 12,363.51 9,016.81 10,375.00 8,807.01 37.65 61.14 -49.15 -3,28944 -4,067.53 7.437 512.44 32624 217.04 Pass-Major Risk 12,375.00 9,016.86 10,40600 8,822.85 37.73 61.39 -48.90 -3,298.21 -4,084.77 7.437 506.02 32869 205.07 Pass-Major Risk 12,38369 9,016.89 10,425.00 8,838.69 37.78 61.64 -48.19 -3,306.84 -4,102.08 7.437 500.52 330.36 194.63 Pass-Major Risk 12,392.85 9,016.93 10,450.00 8,854.57 37.85 61.89 -47.62 -3,315.42 -4,11938 7.437 495.87 332.24 184.92 Pass-Major Risk 12,40060 9,016.96 10,475.00 8,870.15 37.89 62.14 -46.72 -3,324.19 -4,136.84 7.437 49268 333.77 17670 Pass-Major Risk 12,41219 9,017.01 10,500.00 8,885.14 37.98 62.41 -46.53 -3,333.16 -4,154.73 7.437 489.33 335.80 169.12 Pass-Major Risk 12,42560 9,017.06 10,525.00 8,899.55 38.06 62.69 -46.31 -3,34263 -4,172.88 7.437 487.39 337.61 162.86 Pass-Major Risk 12,433.48 9,017.10 10,550.00 8,913.38 38.12 62.98 -45.70 -3,352.30 -4,19128 7.437 48623 339.02 158.16 Pass-Major Risk 12,450.00 9,017.16 10,575.00 8,92663 38.23 63.27 -46.10 -3,362.45 -4,209.88 7.437 485.88 340.76 154.01 Pass-Major Risk,CC 12,450.00 9,017.16 10,600.00 8,939.25 38.23 63.56 -4460 -3,37363 -4,22869 7437 486.15 341.61 15266 Pass-Major Risk 12,465.74 9,017.22 10,625.00 8,950.81 38.34 63.87 -45.09 -3,383.91 -4,248.01 7.437 487.41 34362 150.42 Pass-Major Risk,ES,SF 12 475.00 9,017.26 10,650.00 8,96123 3841 64.18 -44.94 -3,394.69 -4,268.01 7.437 490.14 344.07 151.01 Pass-Major Risk 12,488.05 9,017.31 10,675.00 8,97049 38.50 64.50 -45.38 -3,405.19 -4,288.71 7437 49466 345.02 153.32 Pass-Major Risk 12,500.00 9,017.36 10,700.00 8,978.55 38.58 64.82 -45.84 -3,41542 -4,31065 7.437 50061 345.79 15746 Pass-Major Risk 12,510.00 9,01740 10,725.00 8,985.50 3865 65.14 -46.20 -3,425.34 -4,331.92 7.437 50669 346.42 16322 Pass-Major Risk 12,525.00 9,017.46 10,750.00 8,991.62 38.75 65.47 -47.27 -3,434.59 -4,354.32 7.437 515.51 34667 170.90 Pass-Major Risk 12,532.00 9,017.48 10,775.00 8,99721 38.80 6579 -47.46 -3,443.39 -4,377.04 7.437 525.11 347.14 179.69 Pass-Major Risk 12,54248 9,017.52 10,800.00 9,002.39 38.87 6612 -48.13 -3,45269 -4,39960 7.437 53548 34729 18964 Pass-Major Risk 12,550.00 9,017.55 10,825.00 9,006.96 38.92 66.45 -48.54 -3,460.80 -4,422.88 7.437 546.49 347.56 20063 Pass-Major Risk 12,562.88 9,017.60 10,850.00 9,010.45 39.00 66.78 -49.71 -3,469.44 -4,446.08 7.437 558.19 347.20 21176 Pass-Major Risk 12,575.00 9,017.65 10,875.00 9,012.75 39.08 67.12 -50.93 -3,47821 -4,46967 7.437 57068 34670 224.15 Pass-Major Risk 12,800.00 9,017.65 10,900.00 9,013.57 40.84 6745 -29.85 -3,48763 -4,49274 7.437 57677 35940 22264 Pass-Major Risk 12,813.36 9,017.60 10,925.00 9,013.44 40.95 67.77 -31.47 -3,496.07 -4,516.05 7.437 580.91 361.60 223.66 Pass-Major Risk 12,825.00 9,017.56 10,950.00 9,012.93 41.05 68.10 -32.91 -3,50563 -4,539.19 7.437 585.19 363.44 22562 Pass-Major Risk 12,835.40 9,017.52 10,975.00 9,01168 41.13 68.37 -34.27 -3,514.64 -4,562.43 7.437 590.38 36462 229.37 Pass-Major Risk 12,850.00 9,017.47 11,000.00 9,009.74 41.26 68.60 -36.21 -3,522.51 -4,58668 7.437 59741 36614 23476 Pass-Major Risk 12,850.00 9,017.47 11,025.00 9,007.30 41.26 68.84 -36.42 -3,52961 -4,60965 7.437 605.84 366.77 24260 Pass-Major Risk 12,866.59 9,017.41 11,050.00 9,004.92 41.39 69.07 -38.63 -3,536.14 -4,633.94 7.437 615.01 367.80 250.27 Pass-Major Risk 12,875.00 9,017.38 11,075.00 9,00342 41.46 69.31 -39.76 -3,542.99 -4,657.93 7.437 62467 368.48 258.94 Pass-Major Risk 12,88662 9,017.34 11,100.00 9,00324 41.56 69.55 -41.15 -3,550.57 -4,681.75 7.437 633.92 369.02 267.44 Pass-Major Risk 12,900.00 9,017.29 11,125.00 9,003.91 41.67 69.80 -42.68 -3,558.78 -4,705.35 7.437 643.14 369.32 276.02 Pass-Major Risk 12,900.00 9,017.29 11,150.00 9,004.93 41.67 70.04 -42.57 -3,567.18 -4,728.87 7.437 652.67 369.96 284.82 Pass-Major Risk 12,916.00 9,017.24 11,175.00 9,005.88 4160 7029 -44.40 -3,57566 -4,75241 7.437 662.57 369.86 294.46 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 13 COMPASS 5000.1 Build 61 I/.%O BP BAKER HUGHES Travelling Cylinder Report by IN"TFIQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) A. Site Error: 0.00 usft North Reference: True Reference Well E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 r I Reference Design: Plan 4 Offset TVD Reference: Offset Datum y� �, „�,' Offset Design PB E Pad- E-37-E-37-E-37 Offset Site Error: 0 00 usft Survey Program: 210-MWD,10951-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface t Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth ,N/-S +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 12,925.00 9,017.20 11,200.00 9,006.51 41.87 70.53 -45.41 -3,583.99 -4,775.94 7.437 672.96 369.66 304.55 Pass-Major Risk 12,934.75 6017.17 11,225.00 9,007.01 41.95 70.78 -46.53 -3,592.29 -4,799.51 7.437 683.93 369.55 315.39 Pass-Major Risk 12,950.00 9,017.12 11250.01 9,007.28 42.07 71.03 -48.33 -3,600.53 -4,823.13 7.437 695.46 368.75 327.40 Pass-Major Risk 12,950.00 9,017.12 11,275.00 9,007.34 42.07 71.28 -48.31 -3,608.73 -4,846.73 7.437 707.31 369.37 338.56 Pass-Major Risk 12,961.48 9,017.08 11,300.00 9,007.34 42.16 71.53 -49.67 -3,616.93 -4,870.35 7.437 719.61 368.69 351.29 Pass-Major Risk 13,253.94 9,011.18 11,325.00 9,007.49 44.82 71.79 -28.02 -3,625.18 -4,893.95 7.437 725.13 383.36 34601 Pass-Major Risk 13,278.07 9,007.04 11,350.00 9,008.03 45.06 72.04 -27.64 -3,633.44 -4,917.54 7.437 728.94 384.90 348.17 Pass-Major Risk 13,301.55 9,001.88 11,375.00 9,008.97 45.29 72.29 -27.14 -3,641.67 -4,941.12 7.437 732.82 388.41 350.39 Pass-Major Risk 13,324.29 8,995.77 11,400.00 9,010.24 45.52 72.55 -26.54 -3,650.00 -4,964.88 7.437 736.87 387.90 352.58 Pass-Major Risk 13,346.21 8,988.92 11,425.00 9,011.72 45.73 72.80 -25.84 -3,658.52 -4,988.12 7.437 740.47 389.56 354.71 Pass-Major Risk 13,367.31 8,981.44 11,450.00 9,013.24 45.93 73.06 -25.07 -3,667.02 -5,011.58 7.437 744.43 391.17 357.05 Pass-Major Risk 13,387.70 8,973.38 11,475.00 9,014.43 46.12 73.31 -24.25 -3,675.61 -5,035.03 7.437 748.49 392.72 359.54 Pass-Major Risk 13,407.29 8,964.89 11,500.00 9,015.47 46.31 73.57 -23.38 -3,684.21 -5,058.48 7.437 752.76 394.22 362.30 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2.10:00PM Page 14 COMPASS 5000.1 Build 61 ENIC BP BAKER HUGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset ND Reference: Offset Datum Offset Design PB E Pad- E-37-E-37A-E-37A offset Site Error: 0.00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD+IFR+MS,12467-MWD+IFR+MS Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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/-6 +E/-W Hole Size Centre Distance Deviation (usft) (use) lush) (usft) (usft) (usft) (*) (usft) (usft) (in) (usft) (usft) (usft) 11,852.70 9,02164 8,900.00 7,702.29 35.05 49.92 -53.44 -2,762.04 -3,268.11 4.312 1,529.55 22529 1,405.10 Pass-Major Risk 11,860.08 9,021.32 8,92600 7,722.18 35.07 50.12 -54.23 -2,771.70 -3,279.79 4.312 1,506.64 228.04 1,381.45 Pass-Major Risk 11665.00 9,021.08 8,950.00 7,742.07 35.08 50.31 -5473 -2,78128 -3,291.50 4.312 1,483.77 229.98 1,357.95 Pass-Major Risk 11,869.43 9,020.85 8,97500 7,762.03 35.09 50.49 -55.21 -2,790.72 -3,30323 4.312 1,460.96 231.72 1,333.58 Pass-Major Risk 11,875.00 9,020.58 9,000.00 7,782.07 35.11 50.68 -5181 -2,799.98 -3,314.97 4.312 1,438.24 233.81 1,30806 Pass-Major Risk 11,875.00 9,020.58 9,025.00 7,802.18 35.11 50.86 -55.72 -2,80908 -3,326.71 4.312 1,415.57 23420 1,285.86 Pass-Major Risk 11,875.00 9,020.58 9,05000 7,822.35 35.11 51.04 -5161 -2,81803 -3,338.46 4.312 1,393.01 234.59 1,262.85 Pass-Major Risk 11,883.38 9,020.20 9,07500 7,842.54 35.14 51.21 -5663 -2,826.96 -3,350.19 4.312 1,370.46 237.51 1,237.58 Pass-Major Risk 11,887.03 9,020.04 9,100.00 7,862.74 35.15 51.39 -56.85 -2,835.87 -3,361.91 4.312 1,34799 238.99 1,213.63 Pass-Major Risk 11,890.74 9,019.88 9,125.00 7,882.96 35.16 51.56 -57.18 -2,844.76 -3,373.62 4.312 1,325.58 240.49 1,189.71 Pass-Major Risk 11,900.00 9,019.51 9,150.00 7,903.20 35.19 51.74 -58.18 -2,853.62 -3,38533 4.312 1,303.27 243.63 1,164.40 Pass-Major Risk 11,900.00 9,019.51 9,175.00 7,923.46 35.19 51.92 -58.02 -2,862.38 -3,397.06 4.312 1,28008 244.04 1,141.52 Pass-Major Risk 11,900.00 9,019.51 9,20000 7,943.75 35.19 5209 -5766 -2,87107 -3,408.80 4.312 1,258.82 244.44 1,118.74 Pass-Major Risk 11,900.00 9,019.51 9,22500 7,964.07 35.19 5227 -5718 -2,879.67 -3,420.56 4.312 1,236.78 244.85 1,096.07 Pass-Major Risk 11,910.40 9,019.13 9,25000 7,984.35 35.22 52.46 -58.77 -2,888.34 -3,432.33 4.312 1,214.74 248.33 1,070.56 Pass-Major Risk 11,914.58 9,018.99 9,27500 8,004.57 35.24 52.65 -59.09 -2,897.13 -3,444.12 4.312 1,192.80 249.98 1,046.81 Pass-Major Risk 11,925.00 9,018.66 9,30000 8,024.71 3527 52.84 -60.17 -2,906.06 -3,45562 4.312 1,170.98 253.40 1,021.52 Pass-Major Risk 11,925.00 9,018.66 9,325.00 8,044.79 35.27 5104 -59.97 -2,915.12 -3,46775 4.312 1,149.14 253.86 99863 Pass-Major Risk 11,925.00 9,01816 9,35000 8,064.76 3527 5125 -5978 -2,92418 -3,47969 4.312 1,127.41 254.34 976.45 Pass-Major Risk 11,925.00 9,018.66 9,375.00 8,084.65 35.27 53.45 -59.58 -2,93334 -3,491.51 4.312 1,105.85 254.82 954.11 Pass-Major Risk 11,936.90 9,018.34 9,400.00 8,104.46 35.32 53.66 -60.81 -2,943.14 -3,503.51 4312 1,084.30 258.64 928.59 Pass-Major Risk 11,941.70 9,01823 9,42500 8,124.22 35.33 53.87 -61.17 -2,95269 -3,515.56 4.312 1,06203 260.45 905.12 Pass-Major Risk 11,950.00 9,018.05 9,450.00 8,143.99 35.37 54.07 -61.95 -2,962.12 -3,52765 4.312 1,041.62 263.19 880.78 Pass-Major Risk 11,950.00 9,018.05 9,475.00 8,163.76 35.37 54.27 -61.71 -2,971.73 -3,539.45 4.312 1,020.35 263.67 858.59 Pass-Major Risk 11,950.00 9,018.05 9,500.00 8,183.53 35.37 54.47 -61.46 -2,981.43 -3,55128 4.312 999.19 264.15 83610 Pass-Major Risk 11,961.63 9,017.85 9,525.00 8,203.33 35.41 54.67 -62.59 -2,991.14 -3,563.06 4.312 978.01 267.71 811.30 Pass-Major Risk 11,966.82 9,017.77 9,550.00 8,223.16 35.43 54.86 -62.92 -3,000.78 -3,574.85 4.312 95702 269.53 787.92 Pass-Major Risk 11,975.00 9,017.68 9,575.00 8,243.02 35.46 55.04 -63.58 -3,01013 -3,586.64 4.312 936.19 272.10 763.88 Pass-Major Risk 11,975.00 9,01768 9,60000 8,262.92 35.46 55.23 -6324 -3,019.81 -3,598.43 4.312 915.49 272.56 741.98 Pass-Major Risk 11,98100 9,01761 9,625.00 8,282.87 35.50 55.41 -63.83 -3,02922 -3,61021 4.312 894.93 275.03 718.11 Pass-Major Risk 11,98658 9,017.57 9,650.00 8,302.86 35.52 55.60 -64.10 -3,038.56 -3,621.96 4.312 874.52 276.87 694.93 Pass-Major Risk 12,000.00 9,017.54 9,675.00 8,322.91 35.57 55.78 -6502 -3,04712 -3,63318 4.312 85411 28008 670.43 Pass-Major Risk 12,000.00 9,017.54 9,700.00 8,343.00 35.57 55.96 -64.56 -3,05701 -3,64537 4.312 834.19 28054 64873 Pass-Major Risk 12,005.86 9,017.54 9,725.00 8,363.16 35.59 56.14 -64.74 -3,066.00 -3,657.11 4.312 814.36 282.39 625.75 Pass-Major Risk 12,015.00 9,017.57 9,750.00 8,383.46 3513 56.32 -6526 -3,07419 -3,668.83 4.312 794.80 284.96 602.10 Pass-Major Risk 12,018.19 9,017.58 9,775.00 8,403.85 3515 56.50 -6502 -3,083.12 -3,68069 4.312 77562 286.21 580.17 Pass-Major Risk 12,025.00 9,017.61 9,800.00 8,424.06 35.68 56.70 -65.18 -3,091.55 -3,692.65 4.312 756.66 28131 557.80 Pass-Major Risk 12,032.72 9,01764 9,825.00 8,443.75 35.71 5190 -65.41 -3,099.95 -3,705.56 4.312 73869 290.61 535.93 Pass-Major Risk 12,040.76 9,017.67 9,850.00 8,462.75 35.75 57.12 -65.66 -3,108.50 -3,719.37 4.312 72138 292.98 514.76 Pass-Major Risk 12,050.00 9,01719 9,875.00 8,481.04 35.79 57.36 -66.04 -3,117.29 -3,73367 4.312 705.00 295.57 494.12 Pass-Major Risk 12,058.15 9,017.71 9,900.00 8,498.81 35.83 57.60 -66.27 -3,12624 -3,749.11 4.312 68933 297.89 474.32 Pass-Major Risk 12,067.19 9,017.72 9,925.00 8,516.39 35.88 57.84 -66.56 -3,135.18 -3,764.47 4.312 674.18 300.33 454.73 Pass-Major Risk 12,075.00 9,017.73 9,95000 8,533.79 35.91 58.08 -6614 -3,144.06 -3,780.06 4.312 65912 302.48 43182 Pass-Major Risk 12,085.84 9,017.73 9,975.00 8,550.75 35.97 58.34 -6704 -3,152.93 -3,796.15 4.312 64500 305.15 417.07 Pass-Major Risk 12,100.00 9,017.71 10,000.00 8,567.16 36.04 58.59 -67.80 -3,161.72 -3,812.84 4.312 63323 308.37 398.73 Pass-Major Risk 12,100.00 9,017.71 10,025.00 8,583.22 36.04 58.86 -66.79 -3,170.32 -3,82965 4.312 621.49 309.13 383.55 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 15 COMPASS 5000.1 Build 61 IRMO BP BAKER HUGHES Travelling Cylinder Report bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Wet E-25-Slot 25 Project: Prudhoe Bay ND Reference: 44:25 12/24/1987 00:00 @ 67.80usft s (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well E-25 Survey Calculation Method: Minimum Curvature , ,• ,', Well Error: 0.00 usft Output errors are at 1.00 sigma rr "" Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 " '0,Ati 14` Reference Design: Plan 4 Offset ND Reference: Offset Datum x" K9a Offset Design PB E Pad- E-37-E-37A-E-37A Offset Site Error: 0.00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD+IFR+MS,12467-MWD+IFR+MS Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Tooltace+ Offset Wellbo re Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft' (usft( (°) (usft( (usft) (in) (usft) (usft) (usft) 12,115.60 9,017,68 10,050.00 8,599.08 36.12 59.12 -67.60 -3,178.94 -3,847.25 4.312 610.36 312.38 36625 Pass-Major Risk 12,125.00 9,017.66 10,075.00 8614.88 36.17 59.38 -67.60 -3,187.48 -3,864.64 4.312 599.91 314.51 350.56 Pass-Major Risk 12,135.72 9,017.62 10,100.00 8630.65 36.23 59.64 -67.70 -3,196.10 -3,882.02 4.312 589.96 316.69 335.11 Pass-Major Risk 12,150.00 9,017.55 10,125.00 8,646.40 36.31 59.90 -68.18 -3,204.83 -3,899.36 4.312 580.54 319.16 319.66 Pass-Major Risk 12,150.00 9,017.55 10,150.00 8,662.17 36.31 60.15 -66.86 -3,213.46 -3,916.74 4.312 571.79 319.89 306.78 Pass-Major Risk 12,165.73 9,017.46 10,175.00 8,677.91 36.39 80.41 -67.37 -3,222.03 -3,934.17 4.312 563.67 322.88 292.30 Pass-Major Risk 12,175.00 9,017.40 10,200.00 8,693.58 36.44 60.64 -67.04 -3,230.60 -3,951.66 4.312 556.33 323.82 280.74 Pass-Major Risk 12,185.55 9,017.33 10,225.00 8,709.26 36.50 60.72 -66.80 -3,239.12 -3,969.16 4.312 549.72 323.71 27098 Pass-Major Risk 12,200.00 9,017.21 10,250.00 8,724.80 36.58 60.72 -66.94 -3,246.78 -3,987.19 4.312 544.81 324.32 260.41 Pass-Major Risk 12,204.79 9,017.17 10,275.00 8,740.35 36.61 60.72 -65.78 -3,253.14 -4,005.70 4.312 541.74 324.47 252.75 Pass-Major Risk 12,215.00 9,017.07 10,300.00 8,756.10 36.67 60.72 -65.17 -3,258.06 -4,024.48 4.312 540.81 324.86 246.44 Pass-Major Risk 12,346.74 9,016.74 10,325.00 8,771.93 37.54 60.74 -49.20 -3,261.60 -4,043.49 4.312 538.12 322.44 251.70 Pass-Major Risk 12,350.00 9,016.75 10,350.00 8,787.79 37.56 60.77 -47.82 -3,264.13 4,062.65 4.312 536.51 324.79 245.80 Pass-Major Risk,CC 12,364.90 9,016.82 10,375.00 8,803.48 37.66 60.82 47.78 -3,265.48 4,082.08 4.312 536.78 327.29 239.75 Pass-Major Risk 12,375.00 9,016.86 10,400.00 8,818.81 37.73 60.86 -47.13 -3,265.39 -4,101.80 4.312 539.40 328.89 23727 Pass-Major Risk,ES,SF 12,381.83 9,016.89 10,425.00 8,833.70 37.77 60.91 -46.10 -3,263.76 -4,121.81 4.312 544.46 329.96 238.06 Pass-Major Risk 12,389.63 9,016.92 10,450.00 8,848.17 37.82 60.95 -45.21 -3,260.60 -4,141.95 4.312 551.82 331.09 241.35 Pass-Major Risk 12,400.00 9,016.96 10,475.00 8,862.25 37.89 80.99 -44.66 -3,255.60 4,161.99 4.312 561.59 332.41 247.10 Pass-Major Risk 12,400.00 9,016.96 10,500.00 8,875.60 37.89 61.02 -42.98 -3,249.11 -4,182.10 4.312 573.55 332.57 256.83 Pass-Major Risk 12,409.62 9,017.00 10,525.00 8,888.14 37.96 61.05 -42.57 -3,241.50 -4,202.34 4.312 587.31 333.68 267.51 Pass-Major Risk 12,415.59 9,017.02 10,550.00 8,900.09 38.00 61.09 -41.84 -3,233.38 4,222.74 4.312 602.30 333.79 280.25 Pass-Major Risk 12,425.00 9,017.06 10,575.00 8,911.44 38.06 61.12 -41.64 -3,225.80 -4,243.68 4.312 617.75 334.73 293.42 Pass-Major Risk 12,425.00 9,017.06 10,600.08 8,921.89 38.06 61.18 -40.46 -3,218.04 -4,265.12 4.312 834.20 334.89 308.82 Pass-Major Risk 12,433.78 9,017.10 10,625.00 8,931.23 38.12 61.19 -40.49 -3,210.58 -4,286.98 4.312 851.18 335.67 324.15 Pass-Major Risk 12,440.11 9,017.12 10,850.00 8,939.48 38.17 61.23 -40.37 -3,203.97 -4,309.63 4.312 668.40 336.23 340.17 Pass-Major Risk 12,45000 9,017.16 10,675.00 8,946.72 38.23 81.28 -40.80 -3,197.99 -4,332.80 4.312 685.88 338.90 356.37 Pass-Major Risk 12,450.00 9,017.18 10,700.00 8,953.61 38.23 61.32 -40.12 -3,191.39 -4,355.91 4.312 704.10 337.07 374.15 Pass-Major Risk 12,458.33 9,017.20 10,725.00 8,96024 38.29 61.36 -40.47 -3,184.05 -4,378.86 4.312 723.13 337.58 392.28 Pass-Major Risk 12,463.84 9,017.22 10,750.00 8,966.57 38.33 61.40 -40.55 -3,176.70 -4,401.91 4.312 742.50 337.89 411.03 Pass-Major Risk 12,475.00 9,017.26 10,775.00 8,972.76 38.41 61.44 -41.35 -3,169.90 -4,425.15 4.312 761.85 338.27 429.63 Pass-Major Risk 12,475.00 9,017.26 10,800.00 8,978.97 38.41 61.48 -40.83 -3,163.40 -4,448.48 4.312 781.14 338.43 448.66 Pass-Major Risk 12,475.00 9,017.26 10,825.00 8,985.11 38.41 61.53 -40.35 -3,156.47 -4,471.70 4.312 801.00 338.59 468.29 Pass-Major Risk 12,485.12 9,017.30 10,850.00 8,990.94 38.48 61.57 -41.12 -3,150.01 -4,495.14 4.312 820.77 338.80 487.59 Pass-Major Risk 12,490.23 9,017.32 10,875.00 8,995.98 38.51 61.62 -41.36 -3,143.72 4,518.80 4.312 840.80 338.94 507.36 Pass-Major Risk 12,500.00 9,017.36 10,900.00 9,000.02 38.58 61.68 -42.25 -3,137.69 -4,542.72 4.312 881.03 338.96 527.37 Pass-Major Risk 12,500.00 9,017.36 10,925.00 9,003.05 38.58 61.71 -42.04 -3,132.09 -4,566.89 4.312 88120 339.13 547.39 Pass-Major Risk 12,505.47 9,017.38 10,950.00 9,005.12 38.62 61.76 -42.56 -3,126.82 4,591.24 4.312 901.44 339.15 567.51 Pass-Major Risk 12,510.00 9,017.40 10,975.00 9,00629 3815 61.81 -43.03 -3,12140 -4,615.62 4.312 921.97 339.17 587.95 Pass-Major Risk 12,515.26 9,017.42 11,000.00 9,006.58 38.68 61.88 -43.65 -3,116.52 -4,640.13 4.312 942.35 339.14 608.28 Pass-Major Risk 12,525.00 9,017.46 11,025.00 9,006.03 38.75 61.91 -44.85 -3,112.29 -4,664.77 4.312 962.53 338.84 628.58 Pass-Major Risk 12,525.00 9,017.48 11,050.00 9,00419 38.75 61.97 -44.93 -3,108.35 -4,689.42 4.312 982.58 339.00 648.51 Pass-Major Risk 12,52500 9,017.48 11,075.00 9,002.57 38.75 62.02 -45.05 -3,104.53 -4,714.03 4.312 1,002.76 339.16 66854 Pass-Major Risk 12,53448 9,017.49 11,100.00 9,00023 38.81 62.07 -46.31 -3,100.78 -4,738.83 4.312 1,022.97 338.75 68900 Pass-Major Risk 12,538.95 9,017.51 11,125.00 8,998.18 3814 62.13 -46.96 -3,096.79 -4,763.23 4.312 1,043.49 338.59 709.61 Pass-Major Risk 12,550.00 9,017.55 11,150.00 8,996.76 3812 62.18 -48.35 -3,092.38 4,78779 4.312 1,064.49 337.86 731.12 Pass-Major Risk 12,825.00 9,017.56 11,175.00 8,996.09 41.05 62.23 -3318 -3,08751 -4,812.31 4.312 1,084.57 349.66 743.05 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 16 COMPASS 5000.1 Build 61 ARM BP BAKER HUGHEB Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 ` `' Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) ,r Site Error: 0.00 usft North Reference: True ,, Reference Well: E-25 Survey Calculation Method: Minimum Curvature r, � s3.N. t , N Well Error: 0.00 usft Output errors are at 1.00 sigma , �, Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 , r , Reference Design: Plan 4 Offset TVD Reference: Offset Datum 1 fps 0,. Offset Design PB E Pad- E-37-E-37A-E-37A Offset Site Error: 0.00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD+IFR+MS,12467-MWD+IFR+MS Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Tooiace+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +NrS +E1-W Hole Size Centre Distance Deviation (usft( (use) (usft( (usft) (usft) (usft( (°) (use) (usft) (in) (usft) (usft) (use) 12,825.00 9,017.56 11,200.00 8,995.73 41.05 62.29 -33.39 -3,082.73 -4,836.84 4.312 1,102.06 349.86 760.37 Pass-Major Risk 12,836.40 9,017.52 11225.00 8,995.56 41.14 62.34 -34.76 -3,078.33 -4,861.45 4.312 1,119.37 350.73 776.62 Pass-Major Risk 12,850.00 9,017.47 11,250.00 8,995.50 41.26 62.39 -36.39 -3,074.13 -4,886.10 4.312 1,136.89 351.51 793.13 Pass-Major Risk 12,850.00 9,017.47 11275.00 8,995.42 41.26 62.45 -36.38 -3,069.94 -4,910.74 4.312 1,154.42 351.70 810.48 Pass-Major Risk 12,850.00 9,017.47 11,300.00 8,995.18 41.26 62.50 -36.38 -3,065.92 -4,935.42 4.312 1,172.09 351.90 827.98 Pass-Major Risk 12,850.00 9,017.47 11,325.00 8,994.32 41.26 62.56 -36.41 -3,061.95 -4,960.08 4.312 1,189.99 352.09 845.70 Pass-Major Risk 12,862.10 9,017.43 11,350.00 8,992.75 41.36 62.62 -37.93 -3,058.11 -4,984.74 4.312 1,207.82 352.58 882.85 Pass-Major Risk 12,875.00 9,017.38 11,375.00 8,990.64 41.46 62.67 -39.57 -3,054.33 -5,00936 4.312 1,225.95 352.87 880.48 Pass-Major Risk 12,875.00 9,017.38 11,400.00 8,988.27 41.46 62.73 -39.66 -3,050.50 -5,033.95 4.312 1,244.10 353.06 898.46 Pass-Major Risk 12,875.00 9,017.38 11,425.00 8,985.90 41.46 82.79 -39.76 -3,046.78 -5,058.56 4.312 1,262.41 353.24 91681 Pass-Major Risk 12,875.00 9,017.38 11,450.00 8,983.71 41.46 62.84 -39.84 -3,043.49 -5,083.24 4.312 1,280.66 353.43 934.70 Pass-Major Risk 12,885.57 9,017.34 11,475.00 8,982.06 41.55 62.90 -41.17 -3,040.24 -5,107.97 4.312 1,298.96 353.52 952.73 Pass-Major Risk 12,890.05 9,017.33 11,500.00 8,980.95 41.59 62.96 -41.74 -3,036.95 -5,132.73 4.312 1,317.52 353.82 971.12 Pass-Major Risk 12,900.00 9,017.29 11,525.00 8,979.95 41.67 63.02 -42.96 -3,034.08 -5,157.54 4.312 1,335.99 353.52 989.51 Pass-Major Risk 12,900.00 9,017.29 11,550.00 8,978.88 41.67 63.08 -42.99 -3,031.96 -5,182.43 4.312 1,354.02 353.71 1,007.38 Pass-Major Risk 12,900.00 9,017.29 11,575.00 8,977.85 41.67 63.15 -43.01 -3,030.64 -5,207.37 4.312 1,371.72 353.91 1,024.90 Pass-Major Risk 12,900.00 9,017.29 11,60800 8,976.84 41.67 63.21 -43.04 -3,029.97 -5,232.34 4.312 1,389.19 354.11 1,042.19 Pass-Major Risk 12,912.81 9,017.25 11,62580 8,975.94 41.77 63.28 -44.60 -3,029.56 -5,257.32 4.312 1,406.48 353.72 1,059.61 Pass-Major Risk 12,925.00 9,017.20 11,65080 8,975.50 41.87 63.35 -46.07 -3,029.17 -5,282.32 4.312 1,424.08 353.16 1,077.54 Pass-Major Risk 12,925.00 9,017.20 11,675.00 8,975.30 41.87 83.42 -48.06 -3,029.34 -5,307.31 4.312 1,441.30 353.36 1,094.58 Pass-Major Risk 13,364.13 8,982.62 11,700.00 8,975.12 45.90 83.48 -27.88 -3,030.09 -5,332.30 4.312 1,456.39 369.04 1,098.56 Pass-Major Risk 13,384.76 8,974.59 11,725.00 8,975.03 46.10 63.56 -27.54 -3,031.56 -5,357.26 4.312 1,466.88 370.12 1,108.05 Pass-Major Risk 13,404.76 8,966.03 11,750.00 8,975.23 46.28 83.83 -27.15 -3,033.80 -5,382.15 4.312 1,476.70 371.15 1,116.90 Pass-Major Risk 13,423.94 8,957.12 11,77500 8,975.56 46.48 83.70 -26.73 -3,036.19 -5,40704 4.312 1,486.48 372.14 1,125.72 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 17 COMPASS 5000.1 Build 61 ,i'k BP R4'"� BHUGHES Travelling Cylinder Report Soo 4r bP INTEQ �e Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-37-E-37AL1-E-37AL1 Offset Site Error: 0.00 usft Survey Program: 203-MWD.10215-BLIND.10344-MWD+IFR+MS,10880-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toofface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/-S +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft( (°) (usft) (usft) (in) (usft( (usft( (usft( 11,852.70 9,021.64 8,900.00 7,702.29 35.05 50.47 -5344 -2,762.04 -3,268.11 3.500 1,529.55 225.95 1,404.51 Pass-Major Risk 11660.08 9,021.32 8,925.00 7,722.18 35.07 50.67 -54.23 -2,771.70 -3,279.79 3.500 1,506.64 228.71 1680.85 Pass-Major Risk 11,865.00 9,021.08 8,950.00 7,742.07 35.06 50.87 -54.73 -2,78128 -3,291.50 3.500 1,483.77 230.67 1657.35 Pass-Major Risk 11,869.43 9,020.85 8,975.00 7,762.03 35.09 51.05 -55.21 -2,790.72 -3,303.23 3.500 1,460.96 232.42 1,332.96 Pass-Major Risk 11,875.00 9,020.58 9,000.00 7,782.07 35.11 51.24 -55.81 -2,799.98 -3,314.97 3.500 1,438.24 234.52 1,308.33 Pass-Major Risk 11,875.00 9,020.58 9,025.00 7,802.18 35.11 51.42 -55.72 -2,80808 -3,326.71 3.500 1,415.57 234.92 1,285.22 Pass-Major Risk • 11,875.00 9,020.58 9,050.00 7,822.35 35.11 51.61 -55.61 -2,818.03 -3,338.46 3.500 1,393.01 235.31 1,262.20 Pass-Major Risk • 11,883.38 9,020.20 9,075.00 7,842.54 35.14 51.78 -56.53 -2,826.96 -3,350.19 3.500 1,370.46 238.25 1,236.90 Pass-Major Risk 11,887.03 9,020.04 9,100.00 7,862.74 35.15 51.96 -56.85 -2,83587 -3,361.91 3.500 1,347.99 239.74 1,212.95 Pass-Major Risk 11,890.74 9,019.88 9,125.00 7,882.96 35.16 52.14 -57.18 -2,84476 -3,373.62 3.500 1,325.58 24125 1,189.01 Pass-Major Risk 11,900.00 9,019.51 9,150.00 7,903.20 35.19 52.32 -58.18 -2,853.82 -3,385.33 3.500 1,303.27 244.42 1,183.67 Pass-Major Risk 11,900.00 9,019.51 9,175.00 7,923.46 35.19 52.50 -58.02 -2,862.38 -3,397.06 3.500 1,280.98 244.82 1,14078 Pass-Major Risk 11,900.00 9,019.51 9,200.00 7,943.75 35.19 52.67 -57.86 -2,871.07 -3,408.80 3.500 1,258.82 245.23 1,118.00 Pass-Major Risk 11,900.00 9,019.51 9,225.00 7,964.07 35.19 52.86 -57.88 -2,87987 -3,420.56 3.500 1,236.78 245.64 1,095.32 Pass-Major Risk 11,910.40 9,019.13 9,250.00 7,984.35 35.22 53.05 -58.77 -2,888.34 -3,432.33 3.500 1,214.74 249.15 1,069.77 Pass-Major Risk 11,914.58 9,018.99 9,275.00 8,004.57 35.24 53.24 -59.09 -2,897.13 -3,444.12 3.500 1,192.80 250.81 1,046.01 Pass-Major Risk 11,925.00 9,018.66 9,300.00 8,024.71 35.27 53.44 -60.17 -2,906.06 -3,455.92 3.500 1,170.98 254.25 1,020.69 Pass-Major Risk 11,925.00 9,018.66 9,325.00 8,044.79 35.27 53.64 -59.97 -2,915.12 -3,467.75 3.500 1,149.14 254.72 998.09 Pass-Major Risk 11,925.00 9,018.66 9,350.00 8,064.76 35.27 53.84 -59.78 -2,924.38 -3,479.59 3.500 1,127.41 25520 975.59 Pass-Major Risk 11,925.00 9,018.66 9,375.00 8,084.65 35.27 54.05 -59.58 -2,933.74 -3,491.51 3.500 1,105.85 255.68 953.25 Pass-Major Risk 11,936.90 9,018.34 9,400.00 8,104.46 35.32 54.28 -60.81 -2,943.14 -3,503.51 3.500 1,084.30 259.53 927.69 Pass-Major Risk 11,941.70 9,01823 9,425.00 8,124.22 35.33 54.47 -61.17 -2,952.59 -3,515.56 3.500 1,062.93 261.35 904.20 Pass-Major Risk 11,950.00 9,018.05 9,450.00 8,143.99 35.37 54.68 -61.95 -2,962.12 -3,527.55 3.500 1,041.62 284.10 879.83 Pass-Major Risk 11,950.00 9,018.05 9,475.00 8,163.76 35.37 54.88 -61.71 -2,97173 -3,539.45 3.500 1,020.35 264.58 857.63 Pass-Major Risk 11,950.00 9,018.05 9,500.00 8,183.53 35.37 55.09 -61.46 -2,981.43 -3,551.28 3.500 999.19 265.07 835.53 Pass-Major Risk 11,981.63 9,017.85 9,525.00 8,203.33 35.41 55.28 -62.59 -2,991.14 -3,563.06 3.500 978.01 268.66 810.29 Pass-Major Risk 11,988.82 9,017.77 9,550.00 8,223.16 35.43 55.47 -62.92 -3,000.78 -3,574.85 3.500 957.02 270.49 788.89 Pass-Major Risk 11,975.00 9,017.68 9,575.00 8,243.02 35.46 55.67 -63.58 -3,010.33 -3,586.64 3.500 936.19 273.07 762.81 Pass-Major Risk 11,975.00 9,017.68 9,600.00 8,262.92 35.46 55.86 -63.24 -3,019.81 -3,598.43 3.500 915.49 273.54 740.90 Pass-Major Risk 11,983.00 9,017.61 9,625.00 8,282.87 35.50 56.04 -63.83 -3,02922 -3,610.21 3.500 894.93 276.02 717.00 Pass-Major Risk 11,988.58 9,017.57 9,650.00 8,302.86 35.52 56.22 -64.10 -3,038.56 -3,621.98 3.500 874.52 277.87 693.80 Pass-Major Risk 12,000.00 9,017.54 9,675.00 8,322.91 35.57 56.41 -65.02 -3,047.82 -3,633.68 3.500 854.31 281.11 66925 Pass-Major Risk 12,000.00 9,017.54 9,700.00 8,343.00 35.57 56.59 -64.56 -3,057.01 -3,645.37 3.500 834.19 281.57 647.53 Pass-Major Risk 12,005.88 9,017.54 9,725.00 8,363.16 35.59 56.77 -64.74 -3,066.00 -3,657.11 3.500 814.36 283.43 624.52 Pass-Major Risk 12,015.00 9,017.57 9,750.00 8,383.46 35.83 56.96 -65.26 -3,074.69 -3,668.83 3.500 794.80 286.03 600.83 Pass-Major Risk 12,018.19 9,017.58 9,775.00 8,403.85 35.65 57.14 -65.02 -3,083.12 -3,680.59 3.500 775.52 28728 578.87 Pass-Major Risk 12,025.00 9,017.61 9,800.00 8,424.06 35.68 57.34 -65.18 -3,091.55 -3,692.65 3.500 756.66 289.39 556.47 Pass-Major Risk 12,032.72 9,017.64 9,825.00 8,443.75 35.71 57.55 -65.41 -3,099.95 -3,705.56 3.500 738.59 291.71 534.55 Pass-Major Risk 12,040.76 9,017.67 9,850.00 8,462.75 35.75 57.77 -65.66 -3,108.50 -3,719.37 3.500 721.38 294.09 513.35 Pass-Major Risk 12,050.00 9,017.69 9,875.00 8,481.04 35.79 58.01 -66.04 -3,117.29 -3,733.97 3.500 705.00 296.71 492.66 Pass-Major Risk • 12,058.15 9,017.71 9,900.00 8,498.81 35.83 58.25 -6627 -3,12624 -3,749.11 3.500 689.33 29904 472.82 Pass-Major Risk 12,067.19 9,017.72 9,925.00 8,516.39 35.88 58.50 -66.56 -3,135.18 -3,764.47 3.500 874.18 301.50 453.19 Pass-Major Risk 12,075.00 9,017,73 9,950.00 8,533.79 35.91 58.75 -66.64 -3,144.06 -3,780.06 3.500 659.62 30386 434.22 Pass-Major Risk 12,085.84 9,017.73 9,975.00 8,550.75 35.97 59.00 -67.04 -3,152.93 -3,796.15 3.500 845.90 306.39 415.43 Pass-Major Risk 12,100.00 9,017.71 10,000.00 8,567.16 36.04 59.26 -67.80 -3,161.72 -3,812.84 3.500 63323 309.64 397.03 Pass-Major Risk 12,100.00 9,017.71 10,025.00 8,583.22 36.04 59.53 -66.79 -3,170.32 -3,829.95 3.500 621.49 310.40 381.80 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 18 COMPASS 5000.1 Build 61 Mill BP !4i B HUGER HES Travelling Cylinder Report Z 00+0..° by INTEQ •i4 Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-37-E-37AL1-E-37AL1 Offset site Error: 0.00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD+IFR+MS,10880-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +NIS +EI-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 12,115.60 9,017.68 10,050.00 8,599.08 36.12 59.80 -67.60 -3,178.94 -3,847.25 3.500 610.36 313.67 364.45 Pass-Major Risk 12,125.00 9,017.66 10,075.00 8,614.88 36.17 60.06 -67.60 -3,187.48 -3,864.64 3.500 599.91 315.82 348.70 Pass-Major Risk 12,135.72 9,017.62 10,100.00 8,630.65 36.23 60.33 -67.70 -3,196.10 -3,882.02 3.500 589.96 318.03 333.19 Pass-Major Risk 12,150.00 9,017.55 10,125.00 8,646.40 36.31 60.59 -68.18 -3,204.83 -3,899.36 3.500 580.54 320.51 317.68 Pass-Major Risk 12,150.00 9,017.55 10,150.00 8,662.17 36.31 60.85 -66.86 -3,213.46 -3,916.74 3.500 571.79 321.91 304.74 Pass-Major Risk 12,165.73 9,017.48 10,175.00 8,677.91 38.39 61.11 -87.37 -3,222.03 -3,934.17 3.500 563.67 324.25 290.20 Pass-Major Risk 12,175.00 9,017.40 10,200.00 8,693.58 36.44 61.34 -67.04 -3,230.60 -3,951.66 3.500 556.33 325.21 278.57 Pass-Major Risk 12,185.55 9,017.33 10,225.00 8,709.26 36.50 61.43 -66.80 -3,239.12 -3,969.16 3.500 549.72 325.12 268.74 Pass-Major Risk 12,200.00 9,017.21 10,250.00 8,724.80 38.58 61.43 -68.94 -3,248.78 -3,987.19 3.500 544.81 326.05 258.13 Pass-Major Risk 12,204.79 9,017.17 10,275.00 8,740.35 38.81 61.43 -85.78 -3,253.14 -4,00570 3.500 541.74 326.55 250.42 Pass-Major Risk 12,215.00 9,017.07 10,300.00 8,756.10 36.67 61.43 -65.17 -3,258.06 -4,024.48 3.500 540.61 327.54 244.07 Pass-Major Risk 12,346.74 9,018.74 10,325.00 8,771.93 37.54 61.45 -49.20 -3,261.60 -4,043.49 3.500 538.12 323.76 24992 Pass-Major Risk 12,350.00 9,016.75 10,350.00 8,787.79 37.56 81.48 -47.82 -3,264.13 -4,062.65 3.500 536.51 326.10 24399 Pass-Major Risk 12,364.90 9,016.82 10,375.00 8,803.48 37.66 61.52 -47.78 -3,265.48 -4,082.06 3.500 538.76 328.61 237.90 Pass-Major Risk 12,375.00 9,018.88 10,400.00 8,818.81 37.73 81.57 -47.13 -3,265.39 -4,101.80 3.500 539.40 330.22 235.39 Pass-Major Risk 12,381.83 9,016.89 10,425.00 8,833.70 37.77 61.61 48.10 -3,263.76 4,121.81 3.500 544.46 331.30 236.15 Pass-Major Risk 12,389.63 9,016.92 10,450.00 8,848.17 37.82 61.85 -45.21 -3,260.60 -4,141.95 3.500 551.82 332.43 239.42 Pass-Major Risk 12,400.00 9,018.96 10,475.00 8,862.25 37.89 61.69 -44.66 -3,255.60 4,161.99 3.500 561.59 333.75 245.14 Pass-Major Risk 12,400.00 9,016.96 10,500.00 8,875.60 37.89 61.73 -42.98 -3,249.11 4,182.10 3.500 573.55 333.92 254.87 Pass-Major Risk 12,409.62 9,017.00 10,525.00 8,888.14 37.96 61.76 -42.57 -3,241.50 -4,202.34 3.500 587.31 335.03 265.53 Pass-Major Risk 12,415.59 9,017.02 10,550.00 8,900.09 38.00 61.79 -41.84 -3,233.38 -4,222.74 3.500 602.30 335.15 278.25 Pass-Major Risk 12,425.00 9,017.06 10,575.00 8,911.44 38.06 61.83 -41.84 -3,225.80 -4,243.68 3.500 617.75 336.09 291.41 Pass-Major Risk 12,425.00 9,017.06 10,600.08 8,921.89 38.06 61.88 -40.46 -3,218.04 -4,265.12 3.500 634.20 336.25 306.81 Pass-Major Risk 12,433.78 9,017.10 10,625.00 8,931.23 38.12 61.90 -40.49 -3,210.58 -4,286.98 3.500 851.18 337.04 322.12 Pass-Major Risk 12,440.11 9,017.12 10,650.00 8,939.48 38.17 81.94 -40.37 -3,203.97 4,309.63 3.500 668.40 337.60 338.14 Pass-Major Risk 12,450.00 9,017.16 10,675.00 8,946.72 38.23 61.98 -40.80 -3,19799 -4,332.80 3.500 885.86 338.27 354.34 Pass-Major Risk 12,450.00 9,017.16 10,700.00 8,953.61 38.23 62.02 -40.12 -3,191.39 -4,355.91 3.500 704.10 338.44 372.12 Pass-Major Risk 12,458.33 9,017.20 10,725.00 8,960.24 38.29 62.06 -40.47 -3,184.05 -4,378.88 3.500 723.13 338.93 390.24 Pass-Major Risk 12,463.84 9,017.22 10,750.00 8,966.57 38.33 62.10 -40.55 -3,176.70 -4,401.91 3.500 742.50 339.26 409.00 Pass-Major Risk 12,475.00 9,017.28 10,775.00 8,972.76 38.41 82.15 -41.35 -3,169.90 -4,425.15 3.500 781.85 339.64 427.59 Pass-Major Risk 12,475.00 9,017.26 10,800.00 8,978.97 38.41 62.19 -40.83 -3,163.40 4,448.48 3.500 781.14 339.80 446.62 Pass-Major Risk 12,475.00 9,017.26 10,825.00 8,985.11 38.41 62.23 -40.35 -3,156.47 4,471.70 3.500 801.00 339.96 466.25 Pass-Major Risk 12,485.12 9,017.30 10,850.00 8,990.94 38.48 62.27 -41.12 -3,150.01 -4,495.14 3.500 820.77 340.17 485.55 Pass-Major Risk 12,490.23 9,017.32 10,875.00 8,995.98 38.51 62.32 -41.36 -3,143.72 4,518.80 3.500 840.80 340.31 505.31 Pass-Major Risk 12,500.00 9,017.36 10,900.00 8,999.95 38.58 62.47 -42.25 -3,138.64 -4,542.94 3.500 860.46 340.54 524.47 Pass-Major Risk 12,500.00 9,017.36 10,925.00 9,002.46 38.58 62.65 -42.08 -3,135.94 -4,567.65 3.500 878.85 340.99 542.33 Pass-Major Risk 12,510.00 9,017.40 10,950.00 9,003.48 38.65 62.84 -43.21 -3,135.96 4,592.62 3.500 895.68 341.18 558.67 Pass-Major Risk 12,510.00 9,017.40 10,975.00 9,004.19 3865 63.06 -43.17 -3,138.81 4,617.43 3.500 910.59 341.73 57297 Pass-Major Risk 12,525.00 9,017.46 11,000.00 9,004.57 38.75 83.30 -44.94 -3,144.83 -4,641.87 3.500 923.08 341.61 58520 Pass-Major Risk 12,525.00 9,017.46 11,025.00 9,004.47 38.75 63.55 -44.95 -3,154.89 -4,664.52 3.500 932.15 342.25 593.55 Pass-Major Risk 12,538.49 9,017.51 11,050.00 9,004.05 38.84 63.80 -46.60 -3,169.16 -4,684.98 3.500 938.88 342.08 598.14 Pass-Major Risk 12,550.00 9,017.55 11,075.00 9,003.50 38.92 84.06 -48.01 -3,187.34 -4,702.07 3.500 936.97 341.84 598.15 Pass-Major Risk 12,825.00 9,017.56 11,100.00 9,002.40 41.05 64.30 -33.09 -3,208.52 4,715.23 3.500 930.32 354.15 582.67 Pass-Major Risk 12,825.00 9,017.56 11,125.00 9,000.64 41.05 64.53 -33.20 -3,231.71 -4,724.33 3.500 915.69 354.77 567.41 Pass-Major Risk 12,825.00 9,017.56 11,150.08 9,000.31 41.05 64.73 -33.23 -3,256.27 -4,72920 3.500 897.97 355.32 549.14 Pass-Major Risk 12,838.56 9,017.51 11,175.00 9,001.02 41.16 64.91 -34.82 -3,281.10 4,731.16 3.500 878.41 356.66 528.00 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10.:OOPM Page 19 COMPASS 5000.1 Build 61 Milli BP BAKER HUGHES Travelling Cylinder Report 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset ND Reference: Offset Datum Offset Design PB E Pad- E-37-E-37AL1-E-37AL1 Offset Site Error: 0.00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD+IFR+MS,10880-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toofface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +NIS +Ei-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) P) (usft) lusft) (in) (usft) (usft) lusts) 12,850.00 9,017.47 11,200.00 9,001.79 4126 65.08 -36.15 -3,306.07 -4,731.71 3.500 858.26 357.67 506.64 Pass-Major Risk 12,850.00 9,017.47 11,225.00 9,002.56 41.28 85.24 -36.10 -3,331.04 -4,730.80 3.500 837.31 358.11 485.24 Pass-Major Risk 12,850.00 9,017.47 11250.00 9,002.99 4126 85.39 -36.08 -3,355.93 -4,728.48 3.500 815.81 358.52 483.34 Pass-Major Risk 12,857.95 9,017.44 11,275.00 9,002.82 41.32 65.53 -37.05 -3,380.74 -4,725.42 3.500 794.03 359.23 440.72 Pass-Major Risk 12,882.64 9,017.42 11,300.00 9,002.09 41.36 65.67 -37.67 -3,405.52 -4,722.21 3.500 772.32 359.77 418.40 Pass-Major Risk 12,875.00 9517.38 11525.00 9,001.22 41.46 65.81 -39.23 -3,430.37 -4,719.81 3.500 751.15 360.48 398.33 Pass-Major Risk 12,875.00 9,017.38 11,350.00 9,000.45 41.46 65.97 -39.30 -3,455.30 -4,718.02 3.500 730.51 380.92 375.25 Pass-Major Risk ' 12,875.00 9,017.38 11,375.00 8,999.25 41.46 66.13 -39.41 -3,480.26 -4,717.31 3.500 710.70 381.40 354.99 Pass-Major Risk 12,885.96 9,017.34 11,400.00 8,997.29 41.55 88.30 -40.90 -3,505.17 -4,718.00 3.500 691.97 362.03 335.47 Pass-Major Risk 12,900.00 9,017.29 11,425.00 8,994.67 41.67 68.48 -42.83 -3,529.95 -4,720.04 3.500 674.60 362.54 317.37 Pass-Major Risk 12,900.00 9,017.29 11,450.00 8,991.56 41.87 66.67 -43.12 -3,554.52 -4,723.36 3.500 658.37 383.12 300.61 Pass-Major Risk 12,909.42 9,017.26 11,475.00 8,989.27 41.75 66.87 -44.48 -3,579.04 -4,727.88 3.500 843.25 363.86 284.91 Pass-Major Risk 12,925.00 9,017.20 11500.00 8,988.40 41.87 67.08 -48.47 -3,803.49 -4,732.79 3.500 829.13 363.94 270.39 Pass-Major Risk 12,925.00 9,017.20 11,525.00 8,987.61 41.87 67.29 -46.57 -3,627.97 -4,737.80 3.500 615.15 364.81 255.78 Pass-Major Risk 12,936.63 9,017.16 11550.00 8,986.76 41.97 87.50 -48.08 -3,652.31 -4,743.44 3.500 602.19 364.68 242.52 Pass-Major Risk 12,950.00 9,017.12 11,575.00 8,986.08 42.07 87.72 -49.79 -3,676.34 -4,750.28 3.500 590.78 364.46 231.04 Pass-Major Risk 12,950.00 9,017.12 11,800.00 8,985.51 42.07 67.94 -49.87 -3,700.12 4,757.98 3.500 58068 365.17 220.25 Pass-Major Risk 12,967.37 9,017.06 11,625.00 8,985.07 42.21 88.18 -52.03 -3,723.57 4,788.62 3.500 571.85 364.38 211.83 Pass-Major Risk 13,207.96 9,015.74 11,650.00 8,984.80 44.37 68.41 -30.07 3,748.59 4,778.37 3.500 563.08 373.06 199.55 Pass-Major Risk 13,228.71 9,014.23 11,875.00 8,984.85 44.58 68.66 -29.97 -3,769.25 -4,786.93 3.500 547.99 374.55 183.25 Pass-Major Risk 13,249.72 9,011.78 11,700.00 8,985.29 44.78 68.90 -29.72 -3,791.56 -4,798.20 3.500 533.51 376.07 167.46 Pass-Major Risk 13,270.91 9,008.39 11,725.00 8,986.19 44.99 69.16 -29.30 3,813.37 -4,810.38 3.500 519.87 377.64 152.38 Pass-Major Risk 13,292.17 9,004.06 11,750.00 8,987.38 45.20 69.41 -28.70 -3,834.62 -4,823.49 3.500 507.18 379.23 138.13 Pass-Major Risk 13,313.57 8,998.77 11,775.00 8,988.22 45.41 69.67 -27.99 -3,85521 -4,837.63 3.500 495.60 380.84 124.90 Pass-Major Risk 13,334.89 8,992.58 11,800.00 8,988.41 45.62 69.93 -27.20 -3,875.39 -4,852.40 3.500 484.78 382.47 112.38 Pass-Major Risk 13,355.97 8,985.57 11,825.00 8,987.99 45.82 70.19 -26.32 -3,895.30 -4,867.51 3.500 474.45 384.08 100.31 Pass-Major Risk 13,376.96 8,977.72 11,850.00 8,986.99 46.02 70.48 -25.33 -3,914.58 4,883.38 3.500 465.19 385.70 89.26 Pass-Major Risk 13,397.85 8,969.07 11,875.00 8,985.60 46.22 70.73 -24.22 -3,932.89 -4,900.34 3.500 457.49 387.32 79.75 Pass-Major Risk 13,418.48 8,959.72 11,900.00 8,984.03 46.41 71.00 -22.96 -3,950.06 -4,918.44 3.500 451.58 388.91 72.06 Pass-Major Risk,CC,ES,SF it CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2.10::00PM Page 20 COMPASS 5000.1 Build 61 Milli BP BAKER FRJGHES Travelling Cylinder Report roli bp LNTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 r-;ri4*" .r,. ''° Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft X24 *» ', (generic drilling rig) e 2 Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft 4iiiti,eit? k ti 4)µt (generic drilling rig) xW 4 Site Error: 0.00 usft North Reference: True 44 .4- ,T V Reference Well: E-25 Survey Calculation Method: Minimum Curvature „ Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 - "t Reference Design: Plan 4 Offset TVD Reference: Offset Datum {, Offset Design PB E Pad- E-37-E-37APB1-E-37APB1 Offset Site Error: 0.00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD+IFR+MS,12844-BLIND Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +NIS 4-El-IN Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) 11 (usft) (usft) (in) (usft) (usft) (usft) 11,852.70 9,021.64 8,900.00 7,702.29 35.05 49.92 -5344 -2,762.04 -3,268.11 7.437 1,529.55 225.55 1,404.84 Pass-Major Risk 11,860.08 9,021.32 8,925.00 7,722.18 35.07 50.12 -54.23 -2,771.70 -3,279.79 7.437 1,506.64 228.29 1,381.19 Pass-Major Risk 11,865.00 9,021.08 8,950.00 7,742.07 35.08 50.31 -54.73 -2,781.28 -3,291.50 7.437 1,483.77 230.24 1,357.69 Pass-Major Risk 11,869.43 9,020.85 8,975.00 7,762.03 35.09 50.49 -55.21 -2,790.72 -3,303.23 7.437 1,460.96 231.98 1,333.32 Pass-Major Risk 11,875.00 9,020.58 9,000.00 7,782.07 35.11 50.68 -55.81 -2,799.98 -3,314.97 7.437 1,438.24 234.07 1,308.70 Pass-Major Risk 11,875.00 9,020.58 9,025.00 7,802.18 35.11 50.86 -55.72 -2,809.08 -3,326.71 7.437 1,415.57 234.46 1,285.60 Pass-Major Risk 11,875.00 9,020.58 9,050.00 7,822.35 35.11 51.04 -55.61 -2,818.03 -3,338.46 7.437 1,393.01 234.84 1,262.59 Pass-Major Risk 11,883.38 9,020.20 9,075.00 7,842.54 35.14 51.21 -56.53 -2,826.96 -3,350.19 7.437 1,370.46 237.77 1,237.32 Pass-Major Risk 11,887.03 9,020.04 9,100.00 7,862.74 35.15 51.39 -58.85 -2,835.87 -3,361.91 7.437 1,347.99 239.25 1,213.37 Pass-Major Risk 11,890.74 9,019.88 9,125.00 7,882.96 35.16 51.56 -57.18 -2,844.78 -3,373.62 7.437 1,325.58 240.75 1,189.45 Pass-Major Risk 11,900.00 9,019.51 9,150.00 7,903.20 35.19 51.74 -58.18 -2,853.62 -3,385.33 7.437 1,303.27 243.89 1,164.14 Pass-Major Risk 11,900.00 9,019.51 9,175.00 7,923.46 35.19 51.91 -58.02 -2,862.38 -3,397.06 7.437 1,280.98 244.29 1,141.26 Pass-Major Risk 11,900.00 9,019.51 9,200.00 7,943.75 35.19 52.09 -57.86 -2,871.07 -3,408.80 7.437 1,258.82 244.70 1,118.49 Pass-Major Risk 11,900.00 9,019.51 9,225.00 7,964.07 35.19 52.27 -57.68 -2,879.67 -3,420.56 7.437 1,236.78 245.11 1,095.81 Pass-Major Risk 11,910.40 9,019.13 9,250.00 7,984.35 35.22 52.46 -58.77 -2,888.34 -3,432.33 7.437 1,214.74 248.59 1,070.30 Pass-Major Risk 11,914.58 9,018.99 9,275.00 8,004.57 35.24 52.65 -59.09 -2,897.13 -3,444.12 7.437 1,192.80 250.24 1,046.56 Pass-Major Risk 11,925.00 9,018.66 9,300.00 8,024.71 35.27 52.84 -60.17 -2,906.06 -3,455.92 7.437 1,170.98 253.66 1,021.27 Pass-Major Risk 11,925.00 9,018.66 9,325.00 8,044.79 35.27 53.04 -59.97 -2,915.12 -3,467.75 7.437 1,149.14 254.12 998.67 Pass-Major Risk 11,925.00 9,018.66 9,350.00 8,064.78 35.27 53.25 -59.78 -2,924.38 -3,479.59 7.437 1,127.41 254.60 976.19 Pass-Major Risk 11,925.00 9,018.66 9,375.00 8,084.85 35.27 53.45 -59.58 -2,933.74 -3,491.51 7.437 1,105.85 255.08 953.86 Pass-Major Risk 11,936.90 9,018.34 9,400.00 8,104.46 35.32 53.66 -60.81 -2,943.14 -3,503.51 7.437 1,084.30 258.90 928.33 Pass-Major Risk 11,941.70 9,018.23 9,425.00 8,124.22 35.33 53.86 -61.17 -2,952.59 -3,515.56 7.437 1,062.93 260.71 904.86 Pass-Major Risk 11,950.00 9,018.05 9,450.00 8,143.99 35.37 54.07 -61.95 -2,962.12 -3,527.55 7.437 1,041.62 263.45 880.52 Pass-Major Risk 11,950.00 9,018.05 9,475.00 8,183.76 35.37 54.27 -61.71 -2,971.73 -3,539.45 7.437 1,020.35 263.93 858.33 Pass-Major Risk 11,950.00 9,018.05 9,500.00 8,183.53 35.37 54.47 -61.48 -2,981.43 -3,551.28 7.437 999.19 264.41 836.24 Pass-Major Risk 11,961.63 9,017.85 9,525.00 8,203.33 35.41 54.66 -62.59 -2,991.14 -3,563.06 7.437 978.01 267.97 811.04 Pass-Major Risk 11,966.82 9,017.77 9,550.00 8,223.16 35.43 54.85 -62.92 -3,000.78 -3,574.85 7.437 957.02 269.79 787.67 Pass-Major Risk 11,975.00 9,017.68 9,575.00 8,243.02 35.46 55.04 -63.58 -3,010.33 -3,586.64 7.437 936.19 272.36 763.62 Pass-Major Risk 11,975.00 9,017.68 9,600.00 8,262.92 35.46 5523 -63.24 -3,019.81 -3,59843 7.437 915.49 272.82 741.72 Pass-Major Risk 11,983.00 9,017.61 9,625.00 8,282.87 35.50 55.41 -63.83 -3,029.22 -3,610.21 7.437 894.93 275.29 717.85 Pass-Major Risk 11,988.58 9,017.57 9,650.00 8,302.86 35.52 55.59 -84.10 -3,038.56 -3,621.96 7.437 874.52 277.12 894.67 Pass-Major Risk 12,000.00 9,017.54 9,67530 8,322.91 35.57 55.78 -65.02 -3,047.82 -3,633.88 7.437 854.31 280.34 670.17 Pass-Major Risk 12,000.00 9,017.54 9,700.00 8,343.00 35.57 55.96 -64.56 -3,057.01 -3,645.37 7.437 834.19 280.80 648.47 Pass-Major Risk 12005.86 9,017.54 9,725.00 8,363.16 35.59 56.14 -64.74 -3,066.00 -3,657.11 7.437 81436 282.65 625.49 Pass-Major Risk 12,015.00 9,017.57 9,750.00 8,383.46 35.63 56.32 -65.26 -3,074.69 -3,668.83 7.437 794.80 285.22 601.84 Pass-Major Risk 12,018.19 9,017.58 9.77530 8,403.85 35.65 56.50 -65.02 -3,083.12 -3,680.59 7.437 775.52 286.46 579.91 Pass-Major Risk 12,025.00 9,017.61 9,80300 8,424.06 35.68 56.69 -65.18 -3,091.55 -3,692.65 7.437 756.66 288.56 557.54 Pass-Major Risk 12,032.72 9,017.64 9,825.00 8,443.75 35.71 56.90 -85.41 -3,099.95 -3,705.56 7.437 738.59 290.87 535.67 Pass-Major Risk 12,040.76 9,017.67 9,850.00 8,462.75 35.75 57.12 -65.66 -3,108.50 -3,719.37 7.437 72138 293.24 514.50 Pass-Major Risk 12,050.00 9,017.89 9,875.00 8,481.04 35.79 57.36 -66.04 -3,117.29 -3,733.97 7.437 705.00 295.83 493.86 Pass-Major Risk 12,058.15 9,017.71 9,900.00 8,498.81 35.83 57.60 -68.27 -3,128.24 -3,749.11 7.437 689.33 298.15 474.06 Pass-Major Risk 12,087.19 9,017.72 9,925.00 8,516.39 35.88 57.84 -66.56 -3,135.18 -3,764.47 7.437 674.18 300.59 454.48 Pass-Major Risk 12,075.00 9,017.73 9,950.00 8,533.79 35.91 58.08 -66.64 -3,144.06 -3,780.06 7.437 659.62 302.73 435.56 Pass-Major Risk 12,085.84 9,017.73 9,975.00 8,550.75 35.97 58.33 -67.04 -3,152.93 -3,796.15 7.437 645.90 305.41 416.82 Pass-Major Risk 12,100.00 9,017.71 10,000.00 8,567.16 36.04 58.59 -67.80 -3,161.72 -3,812.84 7.437 633.23 308.63 398.48 Pass-Major Risk 12,100.00 9,017.71 10,025.00 8,583.22 36.04 58.86 -66.79 -3,170.32 -3,829.95 7.437 621.49 309.38 383.29 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 21 COMPASS 5000.1 Build 61 /.i�l II BP BAICIR Travelling Cylinder Report bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-37-E-37APB1-E-37APB1 Offset Site Error: 0.00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD+IFR+MS,12844-BLIND Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolace+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +NIS +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft( (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 12,11560 9,017.68 10,050.00 8,599.08 36.12 59.12 -67.60 -3,178.94 -3,84725 7.437 610.36 31263 365.99 Pass-Major Risk 12,125.00 9,017.66 10,075.00 8,614.88 36.17 59.38 -67.60 -3187.48 -3,864.64 7.437 599.91 314.76 35031 Pass-Major Risk 12,135.72 9,017.62 10,100.00 8,630.65 36.23 59.64 -67.70 -3,196.10 -3,882.02 7.437 589.96 316.95 334.85 Pass-Major Risk 12,150.00 9,017.55 10,125.00 8,646.40 36.31 59.89 -68.18 -3,204.83 -3,89936 7.437 580.54 319.41 319.41 Pass-Major Risk 12,150.00 9,017.55 10,150.00 8,662.17 36.31 60.15 -66.86 -3,21346 -3,916.74 7.437 571.79 320.15 306.52 Pass-Major Risk 12,165.73 9,017.46 10,175.00 8,677.91 36.39 6041 -67.37 -3,222.03 -3,934.17 7.437 563.67 323.14 292.05 Pass-Major Risk 12,17500 9,01740 10,200.00 8,693.58 3644 6004 -67.04 -3,230.60 -3,95166 7.437 556.33 324.08 28049 Pass-Major Risk 12,185.55 9,017.33 10,225.00 8,709.26 36.50 60.72 -66.80 -3,239.12 -3,969.16 7.437 549.72 323.97 270.72 Pass-Major Risk 1220000 9,01721 10,250.00 8,724.80 36.58 60.72 -66.94 -3,246.78 -3,987.19 7.437 544.81 324.58 260.15 Pass-Major Risk 12,204.79 9,017.17 10,275.00 8,740.35 36.61 60.72 -65.78 -3,253.14 -4,005.70 7.437 541.74 324.72 252.49 Pass-Major Risk 12,21500 9,01707 10,300.00 8,756.10 36.67 60.72 -65.17 -3,25806 -4,02448 7.437 540.61 325.12 246.18 Pass-Major Risk 12,34674 9,016.74 10,325.00 8,771.93 37.54 60.74 -4920 -3,261.60 -4,043.49 7.437 538.12 32269 251.44 Pass-Major Risk 12,35600 9,01675 10,350.00 8,787.79 37.56 60.77 -47.82 -3,264.13 -4,06265 7.437 53661 325.05 24654 Pass-Major Risk,CC 12,364.90 9,016.82 10,375.00 8,80348 37.66 60.82 -47.78 -3,26548 -4,082.06 7.437 536.76 327.54 239.49 Pass-Major Risk 12,37600 9,01606 10,400.00 8,818.81 37.73 60.86 -47.13 -3,265.39 -4,101.80 7.437 539.40 329.15 23701 Pass-Major Risk,ES,SF 12,381.83 9,01609 10,42500 8,833.70 37.77 60.91 -46.10 -3,263.76 -4,121.81 7.437 544.46 330.22 237.80 Pass-Major Risk 12,389.63 9,016.92 10,45000 8,848.17 37.82 60.95 -45.21 -3,26060 -4,141.95 7.437 551.82 331.34 241.10 Pass-Major Risk 12,40060 9,01666 10,475.00 8,86225 37.89 60.99 -44.66 -3,255.60 -4,161.99 7.437 561.59 332.67 246.84 Pass-Major Risk 12,400.00 9,01666 10,500.00 8,875.60 37.89 61.02 -42.98 -3,249.11 -4,182.10 7.437 573.55 332.83 256.58 Pass-Major Risk 12,40962 9,01700 10,525.00 8,888.14 3766 61.05 -4257 -3,241.50 -4,20264 7.437 587.31 333.94 267.26 Pass-Major Risk 12,415.59 9,017.02 10,550.00 8,900.09 3860 61.09 -41.84 -3,233.38 -4,222.74 7.437 602.30 334.05 279.99 Pass-Major Risk 12,42560 9,017.06 10,575.00 8,91144 38.06 61.12 -41.64 -3,225.80 -4,243.68 7.437 617.75 33468 293.17 Pass-Major Risk 12,42500 9,01706 10,600.08 8,921.89 38.06 61.15 -40.46 -3,218.04 -4,265.12 7.437 63420 335.14 308.57 Pass-Major Risk 12,433.78 9,017.10 10,625.00 8,931.23 38.12 61.19 -4049 -3,210.58 -4,28668 7.437 651.18 335.93 323.89 Pass-Major Risk 12,440.11 9,017.12 10,650.00 8,939.48 38.17 61.23 -4037 -3,203.97 -4,309.63 7.437 668.40 336.48 33961 Pass-Major Risk 12,450.00 9,017.16 10,675.00 8,946.72 38.23 61.27 -40.80 -3,197.99 -4,332.80 7.437 685.86 337.16 356.12 Pass-Major Risk 12,45000 9,017.16 10,700.00 8,95361 3823 61.32 -40.12 -3,191.39 -4,35561 7.437 704.10 337.33 373.89 Pass-Major Risk 12,458.33 9,017.20 10,725.00 8,960.24 38.29 61.36 -40.47 -3,184.05 -4,378.86 7.437 723.13 337.82 392.02 Pass-Major Risk 12,46364 9,01722 10,750.00 8,966.57 38.33 61.40 -40.55 -3,176.70 -4,40161 7.437 74260 338.14 410.78 Pass-Major Risk 12,475.00 9,01726 10,775.00 8,972.76 38.41 61.44 -41.35 -3,169.90 -4,425.15 7.437 761.85 338.52 429.37 Pass-Major Risk 12,475.00 9,017.26 10,800.00 8,978.97 38.41 61.48 -40.83 -3,16340 -4,448.48 7.437 781.14 33809 448.40 Pass-Major Risk 12,475.00 9,017.26 10,825.00 8,985.11 38.41 61.53 -40.35 -3,15647 -4,471.70 7.437 801.00 338.85 468.03 Pass-Major Risk 12,485.12 9,017.30 10,850.00 8,990.94 38.48 61.57 -41.12 -3,15061 -4,495.14 7.437 82077 339.06 487.33 Pass-Major Risk 12,49023 9,017.32 10,875.00 8,995.98 38.51 6162 -41.36 -3,143.72 -451860 7.437 840.80 339.20 507.10 Pass-Major Risk 12,500.00 9,017.36 10,900.00 9,000.02 38.58 61.66 -4225 -3,13769 -4,542.72 7.437 861.03 339.22 527.11 Pass-Major Risk 12,500.00 9,017.36 10,925.00 9,003.05 38.58 61.71 -4204 -3,13269 -4,56609 7.437 88120 33938 547.13 Pass-Major Risk 12,505.47 9,017.38 10,950.00 9,005.12 38.62 61.76 -42.56 -3,126.82 -4,591.24 7.437 901.44 339.41 567.26 Pass-Major Risk 12,510.00 9,017.40 10,975.00 9,006.29 38.65 61.81 -43.03 -3,121.40 -4,61502 7.437 921.97 339.43 587.69 Pass-Major Risk 12,515.26 9,017.42 11,000.00 9,006.58 3868 61.86 -4365 -3,116.52 -4,640.13 7.437 94235 339.39 60802 Pass-Major Risk 12,525.00 9,01746 11,025.00 9,006.03 38.75 61.91 -4465 -3,11229 -4,664.77 7.437 96263 339.09 62833 Pass-Major Risk 12,52560 9,017.46 11,050.00 9,004.69 38.75 61.96 -44.93 -3,10835 -4,68942 7.437 982.58 339.26 648.25 Pass-Major Risk 12,52560 9,01746 11,075.00 9,002.57 38.75 62.02 -4605 -3,104.53 -4,714.03 7.437 1,002.76 339.42 668.29 Pass-Major Risk 12,53448 9,01749 11,100.00 9,000.23 38.81 62.07 -46.31 -3,100.76 -4,738.63 7.437 1,022.97 339.00 688.74 Pass-Major Risk 12,538.95 9,017.51 11,125.00 8,998.18 38.84 62.13 -46.96 -3,09639 -4,76323 7.437 1,04349 33805 709.35 Pass-Major Risk 12,550.00 9,017.55 11,150.00 8,996.76 38.92 62.18 -48.35 -3,092.38 -4,787.79 7.437 1,064.49 338.12 730.86 Pass-Major Risk 12,825.00 9,017.56 11,175.00 8,996.09 41.05 62.23 -33.38 -3,087.51 -4,812.31 7.437 1,084.57 34962 74279 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 22 COMPASS 5000.1 Build 61 Mill BP R sFEJOHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-37-E-37APB1-E-37APB1 Offset Site Error: 0 00 usft Survey Program: 203-MWD,10215-BLIND,10344-MWD-HFR+MS,12844-BLIND Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 ON/-S +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) I°) (usft) (usft) (in) (usft) (usft) (usft) 12,825.00 9,017.56 11,200.00 8,995.73 41.05 62.28 -33.39 -3,082.73 -4,836.84 7.437 1,102.06 350.12 760.11 Pass-Major Risk 12,836.40 9,017.52 11,225.00 8,995.56 41.14 62.34 -34.78 -3,078.33 -4,861.45 7.437 1,119.37 350.99 776.36 Pass-Major Risk 12,850.00 9,017.47 11,250.00 8,995.50 41.26 62.39 -36.39 -3,074.13 -4,886.10 7.437 1,136.89 351.76 792.88 Pass-Major Risk 12,850.00 9,017.47 11,275.00 8,995.42 41.26 62.45 -36.38 -3,069.94 -4,910.74 7.437 1,154.42 351.96 810.23 Pass-Major Risk 12,850.00 9,017.47 11,300.00 8,995.18 41.26 62.50 -36.38 -3,065.92 -4,935.42 7.437 1,172.09 352.16 827.72 Pass-Major Risk 12,850.00 9,017.47 11,32500 8,994.32 41.26 62.56 -36.41 -3,061.95 -4,960.08 7.437 1,189.99 352.35 845.45 Pass-Major Risk 12,862.10 9,017.43 11,350.00 8,992.75 41.36 62.62 -37.93 -3,058.11 -4,984.74 7.437 1,207.82 352.84 862.59 Pass-Major Risk 12,875.00 9,017.38 11,375.00 8,990.64 41.46 62.67 -39.57 -3,054.33 -5,009.36 7.437 1,225.95 353.13 880.21 Pass-Major Risk 12,875.00 9,017.38 11,400.00 8,988.27 41.46 62.73 -39.66 -3,050.50 -5,033.95 7.437 1,244.10 353.31 898.20 Pass-Major Risk 12,875.00 9,017.38 11,425.00 8,985.90 41.46 62.79 -39.76 -3,048.78 -5,058.56 7.437 1,262.41 353.50 916.35 Pass-Major Risk 12,875.00 9,017.38 11,450.00 8,983.71 41.46 62.84 -39.84 -3,04349 -5,083.24 7.437 1,280.66 353.69 934.45 Pass-Major Risk 12,885.57 9,017.34 11,475.00 8,982.06 41.55 62.90 -41.17 3,040.24 -5,107.97 7.437 1,298.96 353.78 952.48 Pass-Major Risk 12,890.05 9,017.33 11,500.00 8,980.95 41.59 62.96 -41.74 -3,036.95 -5,132.73 7.437 1,317.52 353.88 970.86 Pass-Major Risk 12,900.00 9,017.29 11,525.00 8,979.95 41.67 63.02 -42.96 -3,034.08 -5,157.54 7.437 1,335.99 353.78 98926 Pass-Major Risk 12,900.00 9,017.29 11,550.00 8,978.88 41.67 63.08 -42.99 -3,031.96 -5,182.43 7.437 1,354.02 353.97 1,007.12 Pass-Major Risk 12,900.00 9,017.29 11,575.00 8,977.85 41.67 63.15 -43.01 -3,030.64 -5,207.37 7.437 1,371.72 354.17 1,024.64 Pass-Major Risk 12,900.00 9,017.29 11,600.00 8,976.84 41.67 83.21 -43.04 -3,029.97 -5,232.34 7.437 1,389.19 354.37 1,041.93 Pass-Major Risk 12,912.81 9,017.25 11,625.00 8,975.94 41.77 63.28 -44.80 -3,029.56 -5,257.32 7.437 1,406.46 353.98 1,059.35 Pass-Major Risk 12,925.00 9,017.20 11,650.00 8,975.50 41.87 63.35 -46.07 -3,029.17 -5,282.32 7.437 1,424.08 353.41 1,077.28 Pass-Major Risk 12,925.00 9,017.20 11,675.00 8,975.30 41.87 63.41 -46.06 -3,029.34 -5,307.31 7.437 1,441.30 353.61 1,094.33 Pass-Major Risk 13,364.13 8,982.62 11,700.00 8,975.12 45.90 63.48 -27.88 -3,030.09 -5,332.30 7.437 1,456.39 369.30 1,098.31 Pass-Major Risk 13,384.76 8,974.59 11,725.00 8,975.03 46.10 63.55 -27.54 -3,031.56 -5,35726 7.437 1,466.86 370.38 1,107.79 Pass-Major Risk 13,404.76 8,966.03 11,750.00 8,975.23 48.28 63.63 -27.15 -3,033.80 -5,382.15 7.437 1,476.70 371.41 1,116.64 Pass-Major Risk 13,423.94 8,957.12 11,775.00 8,975.56 48.46 63.70 -26.73 -3,036.19 -5,407.04 7.437 1,486.48 372.39 1,12546 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 23 COMPASS 5000.1 Build 61 PliLt BP AR4go BAKER Travelling Cylinder Report ; 1 bp 1NTEQ ,` Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-37-E-37PB1-E-37PB1 Offset Site Error: 0.00 usft Survey Program: 210-MOOD Rule Assigned:Major Risk Offset Well Error: 0,00 usft 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 +NIS +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 11,850.00 9,021.75 8,900.00 7,703.73 35.04 48.95 -53.15 -2,759.31 -3,264.83 3.500 1,536.02 223.00 1,413.05 Pass-Major Risk 11,857.99 9,021.41 8,925.00 7,723.62 35.06 49.14 -54.01 -2,768.98 -3,276.49 3.500 1,513.10 225.91 1,389.37 Pass-Major Risk 11,865.00 9,021.08 8,950.00 7,743.51 35.08 49.33 -54.75 -2,778.59 -3,288.20 3.500 1,490.21 228.49 1,365.76 Pass-Major Risk 11168.49 9,020.90 8,975.00 7,763.45 35.09 49.51 -55.11 -2,788.08 -3,299.93 3.500 1,467.39 229.93 1,341.65 Pass-Major Risk 11,875.00 9,020.58 9,000.00 7,783.46 35.11 49.69 -55.84 -2,797.39 -3,311.66 3.500 1,444.64 232.27 1,316.81 Pass-Major Risk 11,875.00 9,020.58 9,025.00 7,803.55 35.11 49.87 -55.75 -2,806.53 -3,323.40 3.500 1,421.95 232.66 1,293.70 Pass-Major Risk 11,875.00 9,020.58 9,050.00 7,823.71 35.11 50.04 -55.64 -2,815.51 -3,335.14 3.500 1,399.37 233.04 1,270.67 Pass-Major Risk 11,875.00 9,020.58 9,075.00 7,843.90 35.11 50.21 -55.53 -2,824.44 -3,346.88 3.500 1,376.88 233.41 1,247.72 Pass-Major Risk 11,885.99 9,020.08 9,100.00 7,864.10 35.14 50.39 -56.76 -2,833.36 -3,358.61 3.500 1,354.32 237.08 1,221.78 Pass-Major Risk 11,889.68 9,019.92 9,125.00 7,884.31 35.16 50.56 -57.09 -2,842.26 -3,370.32 3.500 1,331.89 238.56 1,197.88 Pass-Major Risk 11,900.00 9,019.51 9,150.00 7,904.54 35.19 50.73 -58.22 -2,851.13 -3,382.03 3.500 1,309.57 241.97 1,172.34 Pass-Major Risk 11,900.00 9,019.51 9,175.00 7,924.79 35.19 50.90 -58.07 -2,859.92 -3,393.75 3.500 1,287.25 242.37 1,149.44 Pass-Major Risk 11,900.00 9,019.51 9,200.00 7,945.08 35.19 51.07 -57.91 -2,868.63 -3,405.49 3.500 1,265.05 242.76 1,126.65 Pass-Major Risk 11,900.00 9,019.51 9,225.00 7,965.39 35.19 51.24 -57.73 -2,877.25 -3,41724 3.500 1,242.98 243.16 1,103.97 Pass-Major Risk 11,909.24 9,019.17 9,250.00 7,985.69 35.22 51.43 -58.68 -2,885.88 -3,429.01 3.500 1,220.94 24627 1,078.82 Pass-Major Risk 11,913.39 9,019.03 9,275.00 8,005.92 35.23 51.62 -59.00 -2,894.64 -3,440.79 3.500 1,198.98 247.89 1,055.09 Pass-Major Risk 11,925.00 9,018.66 9,300.00 8,026.09 35.27 51.80 -60.23 -2,903.53 -3,452.59 3.500 1,177.16 251.61 1,029.55 Pass-Major Risk 11,925.00 9,018.66 9,325.00 8,046.19 35.27 51.99 -60.03 -2,912.55 -3,464.41 3.500 1,155.29 252.06 1,006.95 Pass-Major Risk 11,925.00 9,018.66 9,350.00 8,066.19 35.27 52.19 -59.83 -2,921.75 -3,476.25 3.500 1,133.53 252.52 984.45 Pass-Major Risk 11,925.00 9,018.66 9,375.00 8,086.10 3527 52.40 -59.64 -2,931.10 -3,488.14 3.500 1,111.91 25300 962.08 Pass-Major Risk 11,935.56 9,018.38 9,400.00 8,105.93 35.31 52.60 -60.71 -2,940.48 -3,500.12 3.500 1,090.34 256.41 936.96 Pass-Major Risk 11,940.34 9,018.26 9,425.00 8,125.70 35.33 52.80 -61.07 -2,949.91 -3,512.17 3.500 1,068.95 258.20 913.51 Pass-Major Risk 11,950.00 9,018.05 9,450.00 8,145.48 35.37 53.00 -62.01 -2,959.42 -3,524.18 3.500 1,047.64 26127 888.87 Pass-Major Risk 11,950.00 9,018.05 9,475.00 8,165.23 35.37 53.20 -61.77 -2,969.01 -3,536.10 3.500 1,026.34 261.75 866.67 Pass-Major Risk 11,950.00 9,018.05 9,500.00 8,185.00 35.37 53.40 -61.53 -2,978.69 -3,547.95 3.500 1,005.14 262.22 844.57 Pass-Major Risk 11,960.18 9,017.87 9,525.00 8,204.79 35.40 53.59 -62.49 -2,988.41 -3,559.74 3.500 983.95 265.37 819.81 Pass-Major Risk 11,965.35 9,017.79 9,550.00 8,224.61 35.43 53.77 -62.83 -2,998.07 -3,571.52 3.500 962.93 267.17 796.46 Pass-Major Risk 11,975.00 9,017.68 . 9,575.00 8,244.47 35.46 53.96 -63.67 -3,007.65 -3,583.31 3.500 942.06 270.08 772.08 Pass-Major Risk 11,975.00 9,017.68 9,600.00 8,264.36 35.46 54.14 -63.34 -3,017.15 -3,595.11 3.500 921.30 270.54 750.16 Pass-Major Risk 11,975.00 9,017.68 9,625.00 8,284.29 35.46 5422 -62.99 -3,026.57 -3,606.89 3.500 900.76 270.98 728.41 Pass-Major Risk 11,987.00 9,017.58 9,850.00 8,304.27 35.51 54.50 -64.02 -3,035.93 -3,818.65 3.500 880.26 274.41 703.58 Pass-Major Risk 11,992.64 9,017.55 9,675.00 8,324.30 35.54 54.68 -64.27 -3,04522 -3,830.38 3.500 859.96 276.22 680.48 Pass-Major Risk 12,000.00 9,017.54 9,700.00 8,344.38 35.57 54.85 -6419 -3,054.43 -3,642.07 3.500 839.83 278.42 657.04 Pass-Major Risk 12,000.00 9,017.54 9,725.00 8,364.52 35.57 55.03 -64.20 -3,063.49 -3,653.79 3.500 819.95 278.88 635.54 Pass-Major Risk 12,010.12 9817.55 9,750.00 8,384.77 35.61 55.20 -64.85 -3,07228 -3,665.53 3.500 80028 281.68 611.62 Pass-Major Risk 12,015.00 9,017.57 9,775.00 8,405.16 35.63 55.38 -64.82 -3,080.75 -3,67725 1500 780.92 283.26 589.14 Pass-Major Risk 12,025.00 9,017.61 9,800.00 8,425.45 35.68 55.57 -65.37 -3,089.17 -3,689.19 3.500 761.92 286.07 566.13 Pass-Major Risk 12,025.00 9,017.61 9,825.00 8,445.31 35.68 55.77 -64.69 -3,097.58 -3,701.82 3.500 743.63 286.61 54512 Pass-Major Risk 12,038.44 9,017.66 9,850.00 8,464.52 35.74 55.98 -85.59 -3,106.06 -3,715.39 3.500 726.15 290.17 523.21 Pass-Major Risk 12,050.00 9,017.69 9,875.00 8,482.99 35.79 56.21 -86.25 -3,114.80 -3,729.79 3.500 709.56 29322 502.02 Pass-Major Risk 12,050.00 9,017.69 9,900.00 8,500.87 35.79 56.44 -85.52 -3,123.71 -3,744.81 3.500 693.73 293.86 483.68 Pass-Major Risk 12,064.62 9,017.72 9,925.00 8,518.50 3516 56.68 -66.48 -3,132.66 -3,760.12 3.500 878.40 297.42 482.97 Pass-Major Risk 12,075.00 9,017.73 9,950.00 8,535.96 35.91 56.91 -66.88 -3,141.57 -3,775.64 3.500 663.66 300.02 443.54 Pass-Major Risk 12,083.13 9,017.73 9,975.00 8,553.08 35.96 57.16 -66.97 -3,150.43 -3,791.55 3.500 649.66 302.15 425.11 Pass-Major Risk 12,092.83 9,017.72 10,000.00 8,569.62 36.00 57.41 -67.21 -3,15927 -3,808.08 3.500 636.68 304.56 40722 Pass-Major Risk 12,100.00 9,017.71 10,025.00 8,585.77 36.04 57.66 -67.08 -3,167.90 -3,825.10 3.500 624.70 306.51 390.80 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 24 COMPASS 5000.1 Build 61 EMI BP BAILER HUGHES Travelling Cylinder Report 0 bp 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB E Pad- E-37-E-37PB1-E-37PB1 Offset Site Error: 0.00 usft Survey Program: 210-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +HIS +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usff) (use) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 12,112.76 9,017.69 10,050.00 8.601.67 36.11 57.92 -67.56 -3,176.51 -3,842.36 3.500 613.42 309.29 373.95 Pass-Major Risk 12,125.00 9,017.66 10,075.00 8,617.48 36.17 58.17 -67.93 -3,185.08 -3,859.73 3.500 602.80 311.82 357.79 Pass-Major Risk 12,132.88 9,017.63 10,100.00 8,633.26 36.21 58.43 -67.70 -3,193.65 -3,877.13 3.500 592.73 313.61 342.74 Pass-Major Risk 12,142.93 9,017.59 10,125.00 8,649.01 36.27 58.68 -67.69 -3,202.38 -3,894.47 3.500 583.11 315.59 327.79 Pass-Major Risk 12,150.00 9,017.55 10,150.00 8,664.78 36.31 58.92 -67.24 -3,211.03 -3,911.83 3.500 574.16 317.13 313.84 Pass-Major Risk 12,162.92 9,017.48 10,175.00 8,680.53 38.38 59.17 -67.43 -3,219.62 -3,929.25 3.500 565.87 319.83 299.70 Pass-Major Risk 12,175.00 9,017.40 10,200.00 8,696.21 36.44 59.43 -87.45 -3,228.18 -3,946.73 3.500 558.34 321.62 286.45 Pass-Major Risk 12,182.77 9,017.35 10,225.00 8,711.90 36.49 59.68 -86.90 -3,236.79 -3,964.19 3.500 551.44 322.93 274.40 Pass-Major Risk 12,192.58 9,017.27 10,250.00 8,727.66 36.54 59.92 -66.54 -3,245.45 -3,981.55 3.500 545.14 324.25 262.78 Pass-Major Risk 12,200.00 9,017.21 10,275.00 8,743.52 36.58 60.16 -65.82 -3,254.16 -3,998.80 3.500 539.45 325.33 252.11 Pass-Major Risk 12,215.00 9,017.07 10,300.00 8,759.44 36.67 60.40 -85.99 -3,263.21 4,015.83 3.500 534.13 326.65 241.28 Pass-Major Risk 12,343.98 9,018.73 10,325.00 8,775.30 37.52 60.65 -49.89 -3,272.16 -4,032.95 3.500 527.31 321.38 243.14 Pass-Major Risk 12,350.00 9,018.75 10,350.00 8,791.14 37.56 60.89 -49.11 -3,280.85 4,050.23 3.500 519.50 323.10 230.56 Pass-Major Risk 12,363.51 9,016.81 10,375.00 8,807.01 37.65 81.14 -49.15 -3,289.44 -4,067.53 3.500 512.44 325.92 217.37 Pass-Major Risk 12,375.00 9,016.86 10,400.00 8,822.85 37.73 61.39 -48.90 -3,298.21 -4,084.77 3.500 508.02 328.26 205.40 Pass-Major Risk 12,383.09 9,016.89 10,425.00 8,838.69 37.78 61.64 -48.19 -3,306.84 -4,102.08 3.500 500.52 330.03 194.95 Pass-Major Risk 12,392.85 9,016.93 10,450.00 8,854.57 37.85 61.89 -47.82 -3,315.42 -4,119.38 3.500 495.87 331.92 18525 Pass-Major Risk 12,400.00 9,018.96 10,475.00 8,870.15 37.89 62.14 -46.72 -3,324.19 -4,136.84 3.500 492.08 333.44 177.03 Pass-Major Risk 12,412.79 9,017.01 10,500.00 8,885.14 37.98 62.41 -46.53 -3,333.16 -4,154.73 3.500 489.33 335.47 169.45 Pass-Major Risk 12,425.00 9,017.06 10,525.00 8,899.55 38.06 62.69 -48.31 -3,342.53 -4,172.88 3.500 487.39 33728 163.19 Pass-Major Risk 12,433.48 9,017.10 10,550.00 8,913.38 38.12 62.98 -45.70 -3,352.30 -4,191.28 3.500 486.23 338.69 158.49 Pass-Major Risk 12,450.00 9,017.16 10,575.00 8,926.63 38.23 63.27 -46.10 -3,362.45 -4,209.88 3.500 485.88 340.43 154.34 Pass-Major Risk,CC 12,450.00 9,017.16 10,600.00 8,939.25 38.23 63.56 -44.80 -3,373.03 -4,228.69 3.500 486.15 341.28 152.39 Pass-Major Risk 12,465.74 9,017.22 10,625.00 8,950.81 38.34 63.87 -45.09 -3,383.91 -4,248.01 3.500 487.41 342.69 150.75 Pass-Major Risk,ES,SF 12,475.00 9,017.26 10,850.00 8,981.23 38.41 64.18 -44.94 -3,394.69 -4,268.01 3.500 490.14 343.75 151.34 Pass-Major Risk 12,488.05 9,017.31 10,875.00 8,970.49 38.50 64.50 -45.38 -3,405.19 -4,288.71 3.500 494.36 344.70 153.65 Pass-Major Risk 12,500.00 9,017.36 10,700.00 8,978.55 38.58 64.82 -45.84 -3,415.42 -4,310.05 3.500 500.01 345.46 157.79 Pass-Major Risk 12,510.00 9,017.40 10,725.00 8,985.50 38.65 65.14 -46.20 -3,425.34 4,331.92 3.500 506.99 346.09 163.55 Pass-Major Risk l 12,525.00 9,017.48 10,750.00 8,991.62 38.75 65.47 -47.27 -3,434.59 -4,354.32 3.500 515.51 346.34 17123 Pass-Major Risk 12,532.00 9,017.48 10,775.00 8,997.21 38.80 65.79 -47.46 -3,443.39 -4,377.04 3.500 525.11 346.82 180.02 Pass-Major Risk 12,542.48 9,017.52 10,800.00 9,002.39 38.87 66.12 -48.13 -3,452.09 -4,399.90 3.500 535.48 346.97 189.87 Pass-Major Risk 12,550.00 9,017.55 10,825.00 9,006.96 38.92 66.45 -48.54 -3,460.80 4,422.88 3.500 546.49 347.23 200.36 Pass-Major Risk 12,562.88 9,017.60 10,850.00 9,010.45 39.00 66.78 -49.71 -3,469.44 -4,446.08 3.500 558.19 346.87 212.09 Pass-Major Risk 12,575.00 9,017.65 10,875.00 9,012.75 39.08 67.12 -50.93 -3,47821 4,469.37 3.500 570.38 346.38 224.48 Pass-Major Risk 12,800.00 9,017.65 10,900.00 9,013.57 40.84 67.45 -29.85 -3,487.03 -4,492.74 3.500 578.77 359.07 222.37 Pass-Major Risk 12,813.36 9,017.60 10,925.00 9,013.44 40.95 67.77 -31.47 -3,496.07 4,516.05 3.500 580.91 361.27 223.99 Pass-Major Risk 12,825.00 9,017.56 10,950.00 9,012.93 41.05 68.10 -32.91 -3,505.53 4,539.19 3.500 585.19 363.11 226.15 Pass-Major Risk 12,835.48 9,017.52 10,975.00 9,012.04 41.13 68.43 -34.25 -3,51540 4,56214 3.500 589.59 364.69 228.71 Pass-Major Risk 12,850.00 9,017.47 11,000.00 9,011.20 41.26 68.75 -36.07 -3,525.05 -4,585.18 3.500 594.81 366.25 232.05 Pass-Major Risk 12,857.13 9,017.44 11,025.00 9,010.53 41.31 69.07 -36.98 -3,534.19 -4,608.45 3.500 601.09 367.36 237.00 Pass-Major Risk 12,867.71 9,017.41 11,050.00 9,009.82 41.40 69.38 -38.31 -3,543.13 4,631.78 3.500 808.12 368.42 242.70 Pass-Major Risk 12,875.00 9,017.38 11,075.00 9,009.47 41.48 89.69 -3921 -3,552.08 -4,655.12 3.500 815.69 369.31 249.17 Pass-Major Risk 12,888.48 9,017.33 11,100.00 9,009.74 41.58 69.99 -40.79 -3,561.21 -4,678.39 3.500 823.56 369.99 256.03 Pass-Major Risk 12,900.00 9,017.29 11,125.00 9,010.42 41.87 70.29 -42.10 -3,570.68 -4,701.52 3.500 631.60 37050 263.28 Pass-Major Risk 12,908.82 9,017.26 11,150.00 9,011.15 41.74 70.61 -43.09 -3,58042 -4,724.53 3.500 639.87 370.99 270.82 Pass-Major Risk 12,925.00 9,017.20 11,175.00 9,011.73 41.87 70.94 -44.98 -3,589.98 -4,747.62 3.500 648.88 370.91 279.54 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2::10.00PM Page 25 COMPASS 5000.1 Build 61 _��� BP BHYGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset P10 Reference: Offset Datum Offset Design PB E Pad- E-37-E-37PB1-E-37PB1 Offset Site Error: 0.00 usft Survey Program: 210-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 ON/-S +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (use) 11 (usft) (usft) (in) (usft) (usft) (usft) 12,925.00 9,01720 11200.00 9,012.19 41.87 71.28 -44.93 -3,599.39 -4,770.78 3.500 658.41 371.81 288.10 Pass-Major Risk 12,938.06 9,017.16 11,225.00 9,012.63 41.98 71.62 -46.45 -3,608.75 -4,793.95 3.500 668.48 371.64 298.04 Pass-Major Risk 12,950.00 9,017.12 11,250.00 9,013.15 42.07 71.94 -47.84 -3,61836 -4,817.15 3.500 679.09 371.09 308.70 Pass-Major Risk 12,950.00 9,017.12 11,27530 9,013.89 42.07 7225 -47.77 -3,62732 -4,840.36 3.500 69024 371.90 318.97 Pass-Major Risk 13,231.86 9,013.92 11,300.00 9,014.85 4461 72.56 -2764 -3,636.82 -4,86347 3.500 700.55 38468 320.10 Pass-Major Risk 13,256.08 9,010.86 11,325.00 9,015.81 44.85 72.89 -27.30 -3,646.50 -4,886.50 3.500 702.87 38645 320.57 Pass-Major Risk 13,279.85 9,006.68 11,35300 9,016.73 45.08 7321 -26.88 -3,656.19 -4,909.52 3.500 705.20 388.20 321.04 Pass-Major Risk 13,303.07 9,00148 11,375.00 9,017.57 45.31 73.54 -26.36 -3,665.88 -4,932.55 3.500 707.63 389.94 321.59 Pass-Major Risk 13,325.71 8,995.36 11,400.00 9,01821 45.53 73.88 -25.77 -3,675.46 -4,95564 3.500 71026 392.98 322.33 Pass-Major Risk 13,347.69 8,988.43 11,425.00 9,018.67 45.74 74.22 -25.12 -3,684.89 -4,978.78 3.500 713.17 394.81 32335 Pass-Major Risk 13,36838 8,980.81 11,450.00 9,01839 45.95 74.56 -2439 -3,694.30 -5,001.95 3.500 716.27 396.59 324.60 Pass-Major Risk 13,389.49 8,972.63 11,475.00 9,019.35 46.14 74.89 -23.59 -3,703.79 -5,025.07 3.500 71947 39828 326.05 Pass-Major Risk 13,409.15 8,964.05 11,500.00 9,019.84 46.32 75.20 -2271 -3,713.40 -5,048.15 3.500 72277 399.89 327.73 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/872013 2:10:00PM Page 26 COMPASS 5000.1 Build 61 iGa® BP BAKER HUGHES Travelling Cylinder Report bp 1M1TEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-02-G-02-G-02 offset Site Error: 0.00 usft Survey Program: 100-CB-GYRO-MS Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 +NIS *EPA( Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 11275.00 9,032.07 10,150.00 8,925.53 36.89 187.49 172.85 -5,135.77 -2,67723 5.562 1,537.62 68404 854.06 Pass-Major Risk 11,385.49 9,032.46 10,125.00 8,904.19 36.96 186.86 174.86 -5,130.37 -2,689.17 5.562 1,531.77 681.72 850.95 Pass-Major Risk 11,387.99 9,032.55 10,100.00 8,882.91 36.98 186.24 175.98 -5,124.93 -2,701.12 5.562 1,526.33 679.71 848.06 Pass-Major Risk 11,390.54 9,032.64 10,075.00 8,861.72 36.99 18558 177.10 -5,119.45 -2,713.19 5.562 1,521.20 677.57 845.76 Pass-Major Risk 11,400.00 9,032.93 9,925.00 6,736.25 37.06 181.58 -176.78 -5,085.51 -2,788.06 5.562 1,496.82 664.63 840.99 Pass-Major Risk 11,400.00 9,032.93 9,950.00 8,756.99 37.06 182.26 -177.63 -5,091.27 -2,775.34 5.562 1,500.05 666.68 840.74 Pass-Major Risk,ES,SF 11,400.00 9,032.93 9,975.00 8,777.79 37.06 182.94 -178.47 -5,097.00 -2,762.70 5.562 1,503.63 888.74 840.96 Pass-Major Risk 11,400.00 9,032.93 10,000.00 8,798.65 37.06 183.62 -179.31 -5,102.89 -2,750.15 5.562 1,507.57 870.79 841.65 Pass-Major Risk 11,400.00 9,032.93 10,025.00 8,819.58 37.06 184.27 179.85 -5,108.33 -2,737.71 5.562 1,511.83 672.76 842.89 Pass-Major Risk 11,400.00 9,032.93 10,050.00 8,840.61 37.06 184.92 179.02 -5,113.92 -2,725.39 5.562 1,516.42 674.73 844.56 Pass-Major Risk 11,410.14 9,033.20 9,900.00 8,715.58 37.12 180.91 -174.78 -5,079.72 -2,800.86 5.562 1,493.81 861.21 842.73 Pass-Major Risk 11,413.18 9,033.27 9,875.00 8,694.98 37.14 180.20 -173.59 -5,073.86 -2,813.77 5.562 1,491.18 658.56 844.30 Pass-Major Risk 11,425.00 9,033.51 9,725.00 8,573.39 37.22 175.91 -167.21 -5,037.35 -2,893.64 5.562 1,481.59 642.97 861.80 Pass-Major Risk 11,425.00 9,033.51 9,750.00 8,593.48 37.22 178.63 -168.05 -5,043.51 -2,880.10 5.562 1,482.31 645.28 858.00 Pass-Major Risk 11,425.00 9,033.51 9,775.00 8,613.63 37.22 177.36 -168.88 -5,049.67 -2,6666.64 5.562 1,483.42 647.58 854.69 Pass-Major Risk 11,425.00 9,033.51 9,800.00 8,633.83 37.22 178.09 -169.72 -5,055.81 -2,85325 5.562 1,484.92 649.89 851.87 Pass-Major Risk 11,425.00 9,033.51 9,825.00 8,654.11 37.22 178.79 -170.55 -5,061.91 -2,839.97 5.562 1,486.77 652.10 849.59 Pass-Major Risk 11,425.00 9,033.51 9,850.00 8,674.49 37.22 179.49 -171.39 -5,067.93 -2,826.80 5.562 1,488.91 654.31 847.71 Pass-Major Risk 11,436.41 9,033.88 9,700.00 8,553.35 37.29 175.18 -165.07 -5,031.17 -2,907.25 5.562 1,481.11 638.18 867.87 Pass-Major Risk 11,439.99 9,033.73 9,675.00 8,533.37 37.31 174.43 -163.83 -5,024.98 -2,920.95 5.562 1,481.05 634.90 873.24 Pass-Major Risk,CC 11,450.00 9,033.81 9,575.00 8,454.17 37.37 171.43 -159.42 -5,000.09 -2,976.69 5.562 1,484.32 822.49 898.27 Pass-Major Risk 11,450.00 9,033.81 9,800.00 8,473.90 37.37 172.19 -160.22 -5,006.28 -2,962.65 5.582 1,482.90 624.98 89178 Pass-Major Risk 11,450.00 9,033.81 9,625.00 8,493.65 37.37 172.93 -161.03 -5,012.53 -2,948.65 5.562 1,481.95 627.43 885.88 Pass-Major Risk 11,450.00 9,033.81 9,650.00 8,513.47 37.37 173.68 -161.85 -5,018.77 -2,934.75 5.582 1,481.38 629.89 880.42 Pass-Major Risk 11,458.99 9,033.85 9,550.00 8,434.38 37.42 170.67 -157.57 -4,994.06 -2,990.73 5.562 1,486.23 617.39 90721 Pass-Major Risk 11,482.96 9,033.85 9,525.00 8,414.55 37.44 169.91 -156.31 -4,988.17 -3,004.76 5.562 1,488.71 613.66 915.73 Pass-Major Risk 11,475.00 9,033.83 9,400.00 8,31423 37.52 188.04 -151.13 -4,967.14 -3,078.05 5.582 1,514.74 597.05 970.44 Pass-Major Risk 11,475.00 9,033.83 9,425.00 8,334.44 37.52 188.82 -151.84 -4,969.59 -3,061.54 5.562 1,507.14 599.59 957.73 Pass-Major Risk 11,475.00 9,033.83 9,450.00 8,354.60 37.52 187.60 -152.58 -4,972.96 -3,047.14 5.562 1,500.77 602.13 946.21 Pass-Major Risk 11,475.00 9,033.83 9,475.00 8,374.68 37.52 168.38 -153.33 -4,977.25 -3,032.89 5.562 1,495.65 604.67 935.92 Pass-Major Risk 11,475.00 9,033.83 9,500.00 8,394.66 37.52 169.16 -154.11 -4,982.45 -3,018.78 5.562 1,491.80 60721 926.90 Pass-Major Risk 11,488.17 9,033.72 9,375.00 8,294.00 37.59 165.22 -148.89 -4,965.47 -3,090.64 5.562 1,523.20 589.74 987.16 Pass-Major Risk 11,500.00 9,033.56 9,350.00 8,273.78 37.65 164.39 -146.82 -4,964.42 -3,105.30 5.562 1,532.68 582.61 1,004.71 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 27 COMPASS 50004 Build 61 Hill BP BAKER =°`£° HUGHES Travelling Cylinder Report INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-02-G-02A-G-02A Offset Site Error: 0.00 usft Survey Program: 113-CB-GYRO-MS,8405-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Tooiface+ Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth +N/5 +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) lin) (usft) (usft) (usft) 10,905.86 9,028.95 11,475.00 8,970.70 33.25 132.42 125.65 -3,900.38 -1,675.46 4.312 1,059.65 440.97 634.21 Pass-Major Risk 10,933.92 9,025.61 11,450.00 8,970.32 33.49 132.34 125.24 -3,914.61 -1.696.02 4.312 1,049.64 440.17 625.00 Pass-Major Risk 10,950.00 9,023.68 11,425.00 8,970.02 33.62 132.27 124.96 -3,928.75 -1,716.63 4.312 1,039.47 439.57 615.35 Pass-Major Risk 10,970.00 9,021.50 11,400.00 8,969.81 33.78 132.20 126.15 -3,942.86 -173727 4.312 1,029.45 443.82 599.25 Pass-Major Risk 10,975.00 9,021.04 11350.00 8,970.10 33.81 132.05 126.50 -3,970.94 -1,778.64 4.312 1,010.15 445.48 577.87 Pass-Major Risk 10,975.00 9,021.04 11,375.00 8,969.89 33.81 132.12 126.60 -3,956.87 -1,757.97 4.312 1,019.55 445.84 587.08 Pass-Major Risk 10,991.25 9,019.72 11325.00 8,970.08 33.94 131.97 128.16 -3,985.22 -1,799.16 4.312 1,001.18 452.59 561.30 Pass-Major Risk 11,000.00 9019.14 11,300.00 8,969.93 34.00 131.90 129.02 -3,999.44 -1,819.72 4.312 992.58 456.14 548.84 Pass-Major Risk 11,008.29 9,018.68 11,275.00 8,970.10 34.07 131.83 129.82 -4,013.78 -1,840.20 4.312 984.45 459.40 537.15 Pass-Major Risk 11,016.95 9,018.29 11,250.00 8,970.23 34.13 13176 130.67 -4,028.05 -1,860.72 4.312 976.62 462.72 525.88 Pass-Major Risk 11,025.00 9,018.00 11,225.00 8,970.23 34.20 131.89 131.46 -4,042.19 -1,88134 4.312 969.00 465.71 514.78 Pass-Major Risk 11,034.50 9,017.77 11,200.00 8,970.23 34.27 131.82 132.40 -4,056.24 -1,902.02 4.312 961.65 469.20 503.63 Pass-Major Risk 11,050.00 9,017.62 11,150.00 8,971.29 34.39 131.49 133.89 -4,084.20 -1,943.44 4.312 947.89 474.58 483.94 Pass-Major Risk 11,050.00 9,017.62 11,175.00 8,970.32 34.39 131.56 133.93 -4,070.28 -1,922.70 4.312 954.72 474.88 490.56 Pass-Major Risk 11,061.38 9,017.70 11,125.00 8,972.67 34.48 131.43 134.95 -4,098.07 -1,964.20 4.312 941.43 478.47 473.21 Pass-Major Risk 11,070.00 9,017.86 11,100.00 8,973.88 34.54 131.36 135.75 -4,112.02 -1,984.91 4.312 935.46 481.22 464.20 Pass-Major Risk 11,075.00 9,017.98 11,075.00 8,974.48 34.58 131.29 136.35 -4,126.17 -2,005.51 4.312 930.16 483.01 456.97 Pass-Major Risk 11,087.05 9,018.30 11,050.00 8,974.07 34.88 131.22 137.83 -4,140.39 -2,026.07 4.312 925.39 487.60 447.37 Pass-Major Risk 11,100.00 9,018.66 11,000.00 8,973.17 34.79 131.10 139.52 -4,167.70 -2,067.93 4.312 915.86 491.98 433.15 Pass-Major Risk 11,100.00 9,018.66 11,02900 8,973.44 34.79 131.18 139.44 -4,154.14 -2,046.93 4.312 920.56 492.27 437.63 Pass-Major Risk 11,112.24 9,019.04 10,975.00 8,973.66 34.89 131.05 140.97 -4,181.26 -2,088.93 4.312 911.55 496.10 424.47 Pass-Major Risk 11,125.00 9,019.46 10,925.00 8,978.76 35.00 130.92 142.38 -4,208.11 -2,130.99 4.312 903.97 49939 412.81 Pass-Major Risk 11,125.00 9,019.46 10,950.00 8,975.02 35.00 130.99 142.42 -4,194.76 -2,109.93 4.312 907.64 500.09 416.27 Pass-Major Risk 11,137.86 9,019.91 10,900.00 8,978.34 35.10 130.86 143.83 -4,221.61 -2,151.97 4.312 900.87 503.49 405.72 Pass-Major Risk 11,150.00 9,020.36 10,850.00 8,980.23 35.20 130.74 145.24 -4,249.57 -2,193.38 4.312 897.31 506.40 398.90 Pass-Major Risk 11,150.00 9,020.36 10,875.00 8,979.45 35.20 130.80 145.22 -4,235.48 -2,172.74 4.312 898.72 506.67 400.12 Pass-Major Risk 11,163.84 9,020.91 10,825.00 8,980.98 35.31 130.68 146.85 -4,263.64 -2,214.02 4.312 896.26 509.74 394.21 Pass-Major Risk 11,175.00 9,021.37 10,775.00 9982.23 35.40 130.57 148.19 -4,292.28 -2,254.99 4.312 896.28 511.85 391.80 Pass-Major Risk 11,175.00 9,021.37 10,800.00 8,981.77 35.40 130.62 148.15 -4,277.85 -2,234.58 4.312 895.88 512.11 391.20 Pass-Major Risk,CC 11,189.91 9,022.02 10,750.00 8,982.72 35.52 130.52 149.93 -4,306.71 -2,275.40 4.312 897.01 514.75 389.32 Pass-Major Risk 11,200.00 9,022.49 10,700.00 8,984.14 35.60 130.41 151.13 -4,335.24 -2,316.44 4.312 899.63 516.12 390.27 Pass-Major Risk 11,200.00 9,022.49 10,725.00 8383.41 35.60 130.47 151.11 -4,320.99 -2,295.91 4.312 898.08 516.37 388.53 Pass-Major Risk,ES,SF 11,215.86 9,02325 10,675.00 8,984.58 35.73 130.36 152.98 -4,349.77 -2,336.78 4.312 901.83 518.41 389.84 Pass-Major Risk 11225.00 9,023.70 10,625.00 8,985.23 35.80 130.26 154.12 -4,379.21 -2,377.18 4.312 908.31 519.17 395.29 Pass-Major Risk 11225.00 9,023.70 10,650.00 8,984.93 35.80 130.31 154.07 -4,364.54 -2,356.94 4.312 904.86 519.41 391.67 Pass-Major Risk 11,241.49 9,024.56 10,600.00 8,985.51 35.93 130.21 156.05 -4,393.82 -2,397.46 4.312 911.93 520.75 396.99 Pass-Major Risk 11,250.00 9,025.02 10,575.00 8,985.80 35.99 130.16 157.08 -4,408.42 -2,417.76 4.312 916.07 521.25 400.43 Pass-Major Risk 11,258.36 9,025.48 10,550.00 8,98608 36.05 130.11 158.08 -4,422.85 -2,438.17 4.312 920.46 521.59 40427 Pass-Major Risk 11266.73 9,025.95 10,525.00 8,986.37 36.12 130.07 159.07 -4,437.19 -2,45865 4.312 925.15 521.79 408.56 Pass-Major Risk 11,275.00 9,026.43 10,500.00 8,986.24 36.18 130.02 160.08 -4,45123 -2,47927 4.312 930.07 521.84 413.23 Pass-Major Risk 11,283.30 9,026.91 10,475.00 9985.88 36.24 129.97 161.11 -4,465.47 -2,499.88 4.312 935.41 521.78 418.45 Pass-Major Risk 11,291.49 9,027.40 10,450.00 8,985.51 36.30 129.93 162.13 -4,479.66 -2,520.46 4.312 94124 521.58 424.28 Pass-Major Risk 11,300.00 9,027.92 10,425.00 8,985.28 36.36 129.88 163.17 3,493.69 -2541.15 4.312 947.30 521.23 430.49 Pass-Major Risk 11,307.72 9,028.41 10,400.00 8,98417 36.42 129.84 164.13 -4,507.36 -2,562.08 4.312 953.35 520.77 438.81 Pass-Major Risk 11,320.00 9029.19 10,375.00 8,983.85 36.51 129.79 165.65 -4,520.75 -2,583.16 4.312 959.57 519.91 443.64 Pass-Major Risk 11,325.00 9,029.50 10,325.00 8,977.68 36.54 129.69 166.70 -4,547.27 -2,625.06 4.312 973.26 519.15 458.00 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2.10::00PM Page 28 COMPASS 5000.1 Build 61 HIM BP BAKER HUGHES Travelling Cylinder Report 0 bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-02-G-02A-G-02A Offset Site Error: 0.00 usft Survey Program: 113-CS-GYRO-MS,8405-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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/-6 +E/-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) 1°) (usft) (usft) (in) (usft) (usft) (usft) 11,325.00 9,029.50 10,350.00 8,981.46 36.54 129.74 166.41 -4,534.05 -2,604.19 4.312 966.14 51926 450.66 Pass-Major Risk 11,339.46 9,030.36 10,300.00 8,972.57 3664 129.65 168.65 -4,560.36 -2,645.73 4.312 980.65 517.72 466.59 Pass-Major Risk 11,350.00 9,030.92 10,250.00 8,958.94 36.72 129.56 170.68 -4,586.48 -2,686.12 5.562 997.19 516.30 484.55 Pass-Major Risk 11,350.00 9,030.92 10,275.00 8,966.21 36.72 129.80 170.23 -4,573.47 -2,666.05 4.312 988.71 516.38 475.86 Pass-Major Risk 11,361.71 9,031.49 10,225.00 8,950.94 36.80 129.52 172.47 -4,599.35 -2,706.00 5.582 1,005.99 514.61 494.96 Pass-Major Risk 11,375.00 9,032.07 10,150.00 8,922.97 36.89 129.41 175.53 -4,637.59 -2,764.11 5.562 1,035.14 512.10 527.08 Pass-Major Risk 11,375.00 9,032.07 10,175.00 8,932.94 36.89 129.44 174.98 -4,624.94 -2,744.99 5.562 1,024.97 512.25 516.45 Pass-Major Risk ''� 11,375.00 9,032.07 10,200.00 8,942.26 36.89 129.48 174.46 -4,612.12 -2,725.66 5.562 1,015.26 512.41 506.32 Pass-Major Risk 11,389.27 9,032.59 10,125.00 8,912.37 36.99 129.37 177.70 -4,649.69 -2,783.25 5.562 1,045.04 509.41 539.64 Pass-Major Risk 11,400.00 9,032.93 10,050.00 8,876.72 37.06 129.27 -179.28 -4,685.28 -2,638.77 5.562 1,077.35 506.85 575.60 Pass-Major Risk 11,400.00 9,032.93 10,075.00 8,889.23 37.06 129.30 -179.90 -4,673.36 -2,820.70 5.582 1,065.97 506.98 563.56 Pass-Major Risk 11,400.00 9,032.93 10,100.00 8,901.14 37.06 129.34 179.50 -4,661.38 -2,802.27 5.562 1,055.11 507.11 552.11 Pass-Major Risk 11,414.35 9,033.30 10,025.00 8,863.50 37.15 129.24 -177.01 -4,697.03 -2,856.44 5.582 1,088.90 503.53 590.57 Pass-Major Risk 11,425.00 9,033.51 9,950.00 8,820.58 37.22 129.16 -173.82 -4,731.45 -2,907.38 5.562 1,125.86 500.60 631.66 Pass-Major Risk 11,425.00 9,033.51 9,975.00 8,835.43 37.22 129.18 -174.48 -4,720.08 -2,890.79 5.562 1,113.14 500.70 618.19 Pass-Major Risk 11,425.00 9,033.51 10,000.00 8,849.71 37.22 129.21 -175.14 -4,708.62 -2,873.77 5.562 1,100.89 500.80 605.27 Pass-Major Risk 11,436.60 9,033.69 9,925.00 8,805.28 37.29 129.13 -171.81 -4,742.84 -2,923.68 5.562 1,138.74 497.43 647.74 Pass-Major Risk 11,450.00 9,033.81 9,825.00 8,738.57 37.37 129.04 -167.29 -4,776.36 -2,987.71 5.562 1,184.86 493.22 700.94 Pass-Major Risk 11,450.00 9,033.81 9,850.00 8,754.70 37.37 129.06 -168.07 -4,769.55 -2,971.90 5.562 1,174.10 493.31 689.01 Pass-Major Risk 11,450.00 9,033.81 9,875.00 8,772.25 37.37 129.08 -168.83 -4,761.94 -2,955.81 5.562 1,163.14 493.40 677.00 Pass-Major Risk 11,450.00 9,033.81 9,900.00 8,789.14 37.37 129.11 -189.56 -4,753.04 -2,939.68 5.562 1,151.51 493.49 664.42 Pass-Major Risk 11,461.77 9,033.85 9,800.00 8,718.00 37.44 129.02 -165.13 -4,783.08 -3,003.05 5.582 1,195.89 489.49 715.98 Pass-Major Risk 11,475.00 9,033.83 9,700.00 8,641.47 37.52 128.95 -160.49 -4,807.35 -3,062.64 5.562 1,242.00 484.82 770.85 Pass-Major Risk 11,475.00 9,033.83 9,725.00 8,660.89 37.52 128.96 -161.25 -4,801.38 -3,048.07 5.582 1,229.94 484.89 757.35 Pass-Major Risk 11,475.00 9,033.83 9,750.00 8,680.14 37.52 128.98 -162.02 -4,795.43 -3,033.27 5.562 1,218.35 484.96 744.37 Pass-Major Risk 11,475.00 9,033.83 9,775.00 8,699.18 37.52 129.00 -182.79 -4,789.35 -3,018.25 5.562 1,207.09 485.04 731.80 Pass-Major Risk 11,484.81 9,033.75 9,675.00 8,621.88 37.57 128.93 -158.58 -4,813.11 -3,077.04 5.562 1,254.17 481.32 787.04 Pass-Major Risk 11,489.21 9,033.71 9,650.00 8,602.06 37.59 128.91 -157.32 -4,818.59 -3,091.28 5.562 1,266.52 479.66 802.08 Pass-Major Risk 11,500.00 9,033.56 9,550.00 8,520.93 37.65 128.88 -153.12 -4,839.32 -3,145.93 5.562 1,318.54 475.82 863.50 Pass-Major Risk 11,500.00 9,033.56 9,575.00 8,541.50 37.65 128.87 -153.84 -4,834.26 -3,132.65 5.562 1,305.07 475.84 848.35 Pass-Major Risk 11,500.00 9,033.56 9,600.00 8,561.88 37.65 128.88 -154.56 -4,829.11 -3,119.11 5.562 1,291.93 475.86 833.57 Pass-Major Risk 11,500.00 9,033.56 9,625.00 8,582.07 37.65 128.90 -155.29 -4,823.89 -3,105.32 5.562 1,279.12 475.88 819.19 Pass-Major Risk 11,510.10 9,033.37 9,525.00 8,500.20 37.71 128.84 -151.20 -4,844.12 -3,159.05 5.562 1,332.04 472.15 881.48 Pass-Major Risk 11,514.10 9,033.28 9,500.00 8,479.31 37.73 128.83 -150.02 -4,848.58 -3,172.04 5.582 1,345.62 470.63 897.91 Pass-Major Risk 11,525.00 9,033.00 9,400.00 8,394.55 37.78 128.79 -145.95 -4,863.53 -3,222.93 5.562 1,400.62 466.51 96321 Pass-Major Risk 11,525.00 9,033.00 9,425.00 8,415.83 37.78 128.80 -146.62 4,859.98 -3,210.31 5.562 1,386.56 466.52 947.32 Pass-Major Risk 11,525.00 9,033.00 9,450.00 8,437.10 37.78 128.81 -147.31 -4,856.47 -3,197.65 5.562 1,372.86 466.54 931.80 Pass-Major Risk 11,525.00 9,033.00 9,475.00 8,458.27 37.78 128.82 -148.00 4,852.69 -3,184.90 5.562 1,359.27 466.57 916.45 Pass-Major Risk 11,533.73 9,032.74 9,375.00 8,373.24 36.63 128.78 -144.24 -4,867.12 -3,235.50 5.562 1,414.93 466.24 979.44 Pass-Major Risk 11,537.56 9,032.62 9,350.00 8,351.81 36.13 128.77 -143.14 -4,870.72 -3,247.87 5.562 1,429.56 466.14 995.95 Pass-Major Risk 11,541.31 9,032.49 9,325.00 8,330.26 35.63 128.76 -142.05 -4,874.32 -3,260.01 5.582 1,444.49 468.06 1,012.76 Pass-Major Risk 12,675.00 9,017.88 9,275.00 8,286.81 39.79 128.74 169.05 4,881.52 -3,283.69 6.875 1,463.04 503.50 1,013.52 Pass-Major Risk 12,675.00 9,017.88 9,300.00 8,308.58 39.79 128.75 168.21 -4,877.93 -3,271.93 5.582 1,456.45 503.38 1,003.94 Pass-Major Risk 12,684.59 9,017.88 9,250.00 8,265.02 39.87 128.73 171.03 4,885.07 -3,295.42 6.875 1,469.92 507.59 1,019.96 Pass-Major Risk 12,687.71 9,017.88 9,225.00 8,243.22 39.89 128.73 172.22 -4,888.58 -3,307.14 6.875 1,477.20 508.90 1,029.34 Pass-Major Risk 12,690.84 9,017.88 9,200.00 8,221.40 39.92 128.72 173.41 -4,892.05 -3,318.84 6.875 1,484.84 510.19 1,039.16 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 29 COMPASS 5000.1 Build 61 VritU BP BAKER HUGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-02-G-02A-G-02A Offset Site Error: 0.00 usfl Survey Program: 113-CB-GYRO-MS,8405-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usfl Reference Offset Semi Major Axis Measured Vertical Measured Vertical Reference Offset Toolface t Offset Wellbore Centre Casing- Centre to No Go Allowable Warning Depth Depth Depth Depth Azimuth .NI.S *Et-W Hole Size Centre Distance Deviation (usfl) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usfl) (in) (usft) (usfl) (usft) 12,700.00 9,017.88 9,075.00 8,112.91 39.99 12858 178.36 -4,91166 -3,37756 6.875 1,529.36 513.88 1,097.29 Pass-Major Risk 12,700.00 9,017.88 9,100.00 8,13452 39.99 12869 17761 -4,907.65 -3,366.00 6.875 1,51924 513.87 1,084.10 Pass-Major Risk 12,700.00 9,017.88 9,125.00 8,156.22 3969 128.70 176.86 -4,903.44 -3,354.15 6.875 1,51023 51325 1,071.44 Pass-Major Risk 12,700.00 9,017.88 9,150.00 8,177.88 3969 128.70 176.09 -4,899,43 -3,342,33 6.875 1,501.35 51324 1,05922 Pass-Major Risk 12,700.00 9,017.88 9,175.00 8,199.61 3969 128.71 175.31 -4,89553 -3,33066 6575 1,492.92 51183 1,047.47 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10.:OOPM Page 30 COMPASS 5000.1 Build 61 Vaal BP BAKER HUGHES Travelling Cylinder Report bp I!VTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 -', Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum u Offset Design PB G Pad- G-02-G-02B-G-02B Offset Site Error: 0.00 usft Survey Program: 113-CB-GYRO-MS,8405-MWD,10278-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 (usft) (usft) (usft) (usft) (usft) (usft) (°1 (usft) (usft) (in) (usft) (usft) (usft) 10,985.37 9,020.16 12,171.00 8,947.93 33.89 132.39 127.48 -4,226.40 -1,414.51 3.812 1,455.33 447.03 1,020.17 Pass-Major Risk 11,000.00 9,019.14 12,100.00 8,956.30 34.00 132.23 128.51 -4,281.29 -1,458.73 3.812 1,450.39 453.07 1,008.54 Pass-Major Risk 11,000.00 9,019.14 12,125.00 8,953.47 34.00 132.29 128.68 -4,261.54 -1,443.68 3.812 1,451.15 453.31 1,009.20 Pass-Major Risk 11,000.00 9,019.14 12,150.00 8,950.48 34.00 132.34 128.85 -4,242.43 -1,427.84 3.812 1,453.38 453.56 1,011.32 Pass-Major Risk 11,011.82 9,018.51 12,075.00 8,958.40 34.09 132.18 129.60 -4,301.78 -1,472.90 3.812 1,451.05 458.10 1,003.92 Pass-Major Risk 11,025.00 9,018.00 12,000.00 8,961.47 34.20 132.05 130.70 -4,366.53 -1,510.48 3.812 1,461.10 463.18 1,008.56 Pass-Major Risk 11,025.00 9,018.00 12,025.00 8,960.19 34.20 132.09 130.78 -4,344.36 -1,499.00 3.812 1,456.23 463.35 1,003.54 Pass-Major Risk 11,025.00 9,018.00 12,050.00 8,959.31 34.20 132.14 130.86 -4,322.71 -1,486.54 3.812 1,452.85 463.55 1,000.02 Pass-Major Risk 11,039.33 9,017.69 11,975.00 8,963.15 34.31 132.02 132.04 -4,389.20 -1,520.86 3.812 1,467.28 488.93 1,008.77 Pass-Major Risk 11,050.00 9,017.62 11,925.00 8,965.51 34.39 131.95 132.97 -4,436.11 -1,537.96 3.812 1,484.49 472.90 1,021.86 Pass-Major Risk 11,050.00 9,017.62 11,950.00 8,964.66 34.39 131.98 133.01 -4,412.51 -1,52977 3.812 1,475.39 473.03 1,012.62 Pass-Major Risk 11,058.60 9,017.66 11,900.00 8,966.42 34.46 131.93 133.76 -4,460.18 -1,544.66 3.812 1,495.27 478.11 1,029.35 Pass-Major Risk 11,070.00 9,017.86 11,850.00 8,968.34 34.54 131.88 134.77 -4,509.38 -1,553.15 3.812 1,521.91 480.21 1,051.82 Pass-Major Risk 11,070.00 9,017.86 11,875.00 8,967.44 34.54 131.90 134.81 -4,484.64 -1,549.68 3.812 1,507.85 480.28 1,037.64 Pass-Major Risk 11,075.00 9,017.98 11,825.00 8,969.07 34.58 131.87 135.32 -4,534.29 -1,555.05 3.812 1,537.48 482.35 1,065.27 Pass-Major Risk 11,225.00 9,023.70 11,050.00 8,975.73 35.80 130.37 153.31 -4,938.35 -2,086.82 3.812 1,538.19 519.90 1,025.69 Pass-Major Risk 11,238.13 9,024.38 11,025.00 8,974.69 35.90 130.32 154.90 -4,931.35 -2,110.80 3.812 1,520.91 521.34 1,006.72 Pass-Major Risk 11,250.00 9,025.02 10,900.00 8,974.21 35.99 130.13 156.58 -4,877.82 -2,223.20 3.812 1,423.73 521.58 908.68 Pass-Major Risk 11,250.00 9,025.02 10,925.00 8,974.46 35.99 130.16 156.51 -4,891.35 -2,202.19 3.812 1,444.80 521.73 929.66 Pass-Major Risk 11,250.00 9,025.02 10,950.00 8,974.55 35.99 130.20 158.44 -4,903.41 -2,180.29 3.812 1,485.05 521.91 949.83 Pass-Major Risk 11,250.00 9,025.02 10,975.00 8,974.64 35.99 130.24 158.37 4,914.11 -2,157.70 3.812 1,484.54 522.11 969.23 Pass-Major Risk 11,250.00 9,025.02 11,000.00 8,974.65 35.99 130.28 156.31 -4,923.41 -2,134.50 3.812 1,503.22 522.32 98781 Pass-Major Risk 11,260.09 9,025.57 10,875.00 8,973.69 36.07 130.10 157.81 -4,862.95 -2,243.28 3.812 1,401.81 522.17 885.94 Pass-Major Risk 11,262.89 9,025.73 10,850.00 8,973.16 36.09 130.08 158.21 -4,847.06 -2,262.57 3.812 1,379.44 522.21 863.42 Pass-Major Risk 11,265.45 9,025.88 10,825.00 8,972.68 38.11 130.05 158.58 -4,830.16 -2,280.99 3.812 1,356.57 522.22 840.44 Pass-Major Risk 11,275.00 9,026.43 10,500.00 8,971.35 36.18 129.88 160.66 -4,562.05 -2,456.63 3.812 1,041.86 521.66 525.70 Pass-Major Risk 11,275.00 9,028.43 10,525.00 8,972.00 36.18 129.91 160.52 -4,577.84 -2,437.29 3.812 1,063.61 521.81 547.36 Pass-Major Risk 11,275.00 9,026.43 10,550.00 8,971.98 36.18 129.92 180.42 4,59624 -2,420.50 3.812 1,087.06 521.93 570.74 Pass-Major Risk 11,275.00 9,026.43 10,575.00 8,971.55 36.18 129.94 180.36 4,61865 -2,405.95 3.812 1,111.40 522.01 595.03 Pass-Major Risk 11,275.00 9,026.43 10,600.00 8,970.88 36.18 129.95 160.32 -4,638.53 -2,393.92 3.812 1,136.24 522.07 619.85 Pass-Major Risk 11,275.00 9,026.43 10,625.00 8,970.23 36.18 129.95 160.28 4,661.71 -2,384.58 3.812 1,161.21 522.09 644.82 Pass-Major Risk 11,275.00 9,026.43 10,650.00 8,969.97 38.18 129.96 180.23 4,685.36 -2,376.49 3.812 1,186.13 522.11 669.73 Pass-Major Risk 11275.00 9,026.43 10,675.00 8,970.15 36.18 129.96 160.17 -4,708.57 -2,367.22 3.812 1,211.08 522.14 694.66 Pass-Major Risk 11,275.00 9,026.43 10,700.00 8,970.30 36.18 129.97 160.10 4,731.14 -2,356.47 3.812 1,236.00 522.18 719.57 Pass-Major Risk 11,275.00 9,026.43 10,725.00 8,970.49 36.18 129.98 160.02 -4,752.77 -2,343.95 3.812 1,260.76 522.24 744.30 Pass-Major Risk 11,275.00 9,026.43 10,750.00 8,970.95 36.18 129.99 159.94 4773.40 -2,329.84 3.812 1,285.23 522.32 768.72 Pass-Major Risk 11,275.00 9,026.43 10,775.00 8,971.59 36.18 130.01 159.84 -4,793.21 -2,314.62 3.812 1,309.40 522.41 792.84 Pass-Major Risk 11,275.00 9,026.43 10,800.00 8,972.01 36.18 130.03 159.76 4,81210 -2,298.26 3.812 1,333.22 522.52 816.61 Pass-Major Risk 11,286.47 9,027.10 10,475.00 8,970.49 36.26 129.85 162.12 -4,549.31 -2,478.09 3.812 1,022.18 521.67 505.74 Pass-Major Risk 11,300.00 9,027.92 10,400.00 8,973.14 36.36 129.76 183.85 -4,533.26 -2,550.52 3.812 982.29 520.87 466.12 Pass-Major Risk 11,300.00 9,027.92 10,425.00 8,971.48 36.36 129.79 163.83 -4,534.66 -2,525.64 3.812 991.82 521.10 475.54 Pass-Major Risk 11,300.00 9,027.92 10,450.00 8,970.48 36.36 129.82 163.77 -4,540.04 -2,501.28 3.812 1,005.37 521.33 48837 Pass-Major Risk 11,320.00 9,029.19 10,375.00 8,975.04 36.51 129.72 166.10 -4,535.69 -2,575.31 3.812 976.69 519.77 461.14 Pass-Major Risk 11,322.88 9,029.37 10,350.00 8,976.39 36.53 129.89 166.44 -4,541.82 -2,599.48 3.812 975.22 519.36 459.91 Pass-Major Risk,CC,ES,SF 11,325.00 9,029.50 10,325.00 8,975.87 36.54 129.68 166.79 -4,550.45 -2,622.92 3.812 976.99 519.02 461.92 Pass-Major Risk 11,339.36 9,030.35 10,300.00 8,972.39 36.64 129.63 188.84 -4,561.07 -2,64525 3.812 98147 517.63 467.51 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 31 COMPASS 5000.1 Build 61 BAKER HUGHES BP .4'R4 HUGHES Travelling Cylinder Report`, bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-02-G-02B-G-02B Offset Site Error: 0.00 usft Survey Program: 113-CB-GYRO-MS,8405-MWD,10278-MWD Rule Assigned:Major Risk Offset Well Error: 0 00 usft 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 (usft) (usft) (usft) (usft) (usft) (usft) 1°) (usft) (usft) (in) (usft) (usft) (usft) 11550.00 9,030.92 10,250.00 8,958.94 36.72 129.56 170.68 -4,58648 -2,686.12 4.312 997.19 516.20 484.66 Pass-Major Risk 11,350.00 9,030.92 10,275.00 8,966.21 36.72 129.60 17023 -4,573.47 -2,666.05 4.312 988.71 516.36 475.88 Pass-Major Risk 11,361.71 9,031.49 10,225.00 8,950.94 36.80 129.52 172.47 -4,599.35 -2,706.00 4.312 1,005.99 514.51 495.06 Pass-Major Risk 11,375.00 9,032.07 10,15000 8,922.97 36.89 129.41 175.53 -4,637.59 -2,784.11 4.312 1,035.14 511.99 527.18 Pass-Major Risk 11,375.00 9,032.07 10,175.00 8,932.94 36.89 129.44 17498 -4,624.94 -2,744.99 4.312 1,024.97 512.15 516.55 Pass-Major Risk 11,375.00 9,032.07 10,200.00 8,942.26 36.89 129.48 174.46 -4,612.12 -2,725.66 4.312 1,015.26 512.31 506.43 Pass-Major Risk 11,389.27 9,032.59 10,125.00 8,912.37 36.99 129.37 177.70 -4,849.69 -2,783.25 4.312 1,045.04 509.30 539.74 Pass-Major Risk 11,400.00 9,032.93 10,050.00 8,876.72 37.06 129.27 -179.28 -4,685.28 -2,838.77 4.312 1,077.35 506.75 575.71 Pass-Major Risk 11,400.00 9,032.93 10,075.00 8,889.23 37.06 129.30 -179.90 -4,673.36 -2,820.70 4.312 1,065.97 506.87 563.66 Pass-Major Risk 11,400.00 9,032.93 10,100.00 8,901.14 37.06 129.34 179.50 -4,661.38 -2,802.27 4.312 1,055.11 507.01 552.21 Pass-Major Risk 11,414.35 9,033.30 10,025.00 8,863.50 37.15 129.24 -177.01 -4,697.03 -2,856.44 4.312 1,088.90 503.42 590.68 Pass-Major Risk 11,425.00 9,033.51 9,950.00 8,820.58 37.22 129.16 -173.82 -4,731.45 -2,907.38 4.312 1,125.86 50050 831.77 Pass-Major Risk 11,425.00 9,033.51 9,975.00 8,835.43 37.22 129.18 -174.48 -4,720.08 -2,890.79 4.312 1,113.14 50059 818.30 Pass-Major Risk 11,425.00 9,033.51 10,000.00 8,849.71 37.22 129.21 -175.14 4,708.62 -2,873.77 4.312 1,100.89 500.89 605.37 Pass-Major Risk 11,436.60 9,033.69 9,925.00 8,805.28 37.29 129.13 -171.81 -4,742.64 -2,923.68 4.312 1,138.74 497.33 647.85 Pass-Major Risk 11,450.00 9,033.81 9,825.00 8,736.57 37.37 129.04 -167.29 -4,776.36 -2,987.71 4.312 1,184.88 493.11 701.05 Pass-Major Risk 11,450.00 9,033.81 9,850.00 8,754.70 37.37 129.06 -168.07 -4,769.55 -2,971.90 4.312 1,174.10 493.20 689.12 Pass-Major Risk 11,450.00 9,033.81 9,875.00 8,772.25 37.37 129.08 -168.83 -4,761.94 -2,955.81 4.312 1,163.14 49329 677.10 Pass-Major Risk 11,450.00 9,033.81 9,900.00 8,789.14 37.37 129.11 -169.56 -4,753.04 -2,939.68 4.312 1,151.51 493.39 664.52 Pass-Major Risk 11,461.77 9,033.85 9,800.00 8,718.00 37.44 129.02 -165.13 -4,783.08 -3,003.05 4.312 1,195.89 489.39 716.09 Pass-Major Risk 11,475.00 9,033.83 9,703.00 8,641.47 37.52 128.95 -160.49 -4,807.35 -3,062.64 4.312 1,242.00 484.71 770.96 Pass-Major Risk 11,475.00 9,033.83 9,725.00 8,660.89 37.52 128.96 -161.25 -4,801.38 -3,048.07 4.312 1,229.94 484.78 757.48 Pass-Major Risk 11,475.00 9,033.83 9,750.00 8,680.14 37.52 128.98 -162.02 -4,795.43 -3,033.27 4.312 1,218.35 484.86 744.48 Pass-Major Risk 11,475.00 9,033.83 9,775.00 8,699.18 37.52 129.00 -162.79 -4,789.35 -3,018.25 4.312 1,207.09 484.94 731.91 Pass-Major Risk 11,484.81 9,033.75 9,675.00 8,621.86 37.57 128.93 -158.58 -4,813.11 -3,077.04 4.312 1,254.17 48121 787.14 Pass-Major Risk 11,489.21 9,033.71 9,650.00 8,602.06 37.59 128.91 -157.32 -4,818.59 -3,091.28 4.312 1,266.52 479.55 802.18 Pass-Major Risk 11,500.00 9,033.56 9,550.00 8,520.93 37.65 128.86 -153.12 -4,839.32 -3,145.93 4.312 1,318.54 475.72 863.61 Pass-Major Risk 11,500.00 9,033.56 9,575.00 8,541.50 37.85 128.87 -153.84 -4,834.26 -3,132.65 4.312 1,305.07 475.74 848.46 Pass-Major Risk 11,500.00 9,033.56 9,600.00 8,561.88 37.65 128.88 -154.56 -4,829.11 -3,119.11 4.312 1,291.93 475.76 833.68 Pass-Major Risk 11,500.00 9,033.56 9,625.00 8,582.07 37.65 128.90 -155.29 -4,823.89 -3,105.32 4.312 1,279.12 475.78 81929 Pass-Major Risk 11,510.10 9,033.37 9,525.00 8,500.20 37.71 128.84 -151.20 -4,844.12 -3,159.05 4.312 1,332.04 472.04 881.58 Pass-Major Risk 11,514.10 9,033.28 9,500.00 8,479.31 37.73 128.83 -150.02 4,848.58 -3,172.04 4.312 1,345.62 470.53 898.01 Pass-Major Risk 11,525.00 9,033.00 9,400.00 8,394.55 37.78 128.79 -145.95 4,863.53 -3,222.93 4.312 1,400.62 466.40 963.31 Pass-Major Risk 11,525.00 9,033.00 9,425.00 8,415.83 37.78 128.80 -148.62 4,859.98 -3,210.31 4.312 1,386.56 466.42 947.42 Pass-Major Risk 11,525.00 9,033.00 9,450.00 8,437.10 37.78 128.81 -147.31 -4,856.47 -3,197.65 4.312 1,372.86 466.44 931.91 Pass-Major Risk 11,525.00 9,033.00 9,475.00 8,458.27 37.78 128.82 -148.00 -4,852.69 -3,184.90 4.312 1,359.27 486.48 916.55 Pass-Major Risk 11,533.73 9,032.74 9,375.00 8,373.24 36.83 128.78 -144.24 4,887.12 -3,235.50 4.312 1,414.93 468.14 979.54 Pass-Major Risk 11,537.56 9,032.62 9,350.00 8,351.81 36.13 128.77 -143.14 -4,870.72 -3,247.87 4.312 1,429.56 486.04 996.05 Pass-Major Risk 11,541.31 9,032.49 9,325.00 8,330.26 35.63 128.78 -142.05 -4,874.32 -3,260.01 4.312 1,444.49 465.96 1,012.86 Pass-Major Risk 12,675.00 9,017.88 9,275.00 8,286.81 39.79 128.74 169.05 -4,881.52 -3,283.69 6.875 1,463.04 503.50 1,013.52 Pass-Major Risk 12,675.00 9,017.88 9,300.00 8,308.58 39.79 128.75 168.21 -4,877.93 -3,271.93 4.312 1,456.45 50327 1,004.04 Pass-Major Risk 12,684.59 9,017.88 9,250.00 8,265.02 39.87 128.73 171.03 4,885.07 -3,295.42 6.875 1,489.92 507.59 1,019.96 Pass-Major Risk 12,687.71 9,017.88 9,225.00 8,243.22 39.89 128.73 172.22 4,888.58 -3,307.14 8.875 1,477.20 508.90 1,029.34 Pass-Major Risk 12,690.84 9,017.88 9,200.00 8,221.40 39.92 128.72 173.41 -4,892.05 -3,318.84 6.875 1,484.84 510.19 1,039.16 Pass-Major Risk 12,700.00 9,017.88 9,075.00 8,112.91 39.99 128.68 178.36 4,911.86 -3,377.66 6.875 1,529.36 513.88 1,097.29 Pass-Major Risk 12,700.00 9,017.88 9,100.00 8,134.62 39.99 128.89 177.61 -4,907.85 -3,386.00 6.875 1,519.54 513.87 1,084.10 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 32 COMPASS 5000.1 Build 61 aahl BP BAICIR Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay ND Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset ND Reference: Offset Datum Offset Design PB G Pad- G-02-G-02B-G-02B Offset Site Error: 0.00 usft Survey Program: 113-CB-GYRO-MS,8405-MWD,10278-MWD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 (usft) (usft) (usft) (usft) (usft) (usft) r) (usft) (usft) (in) (usft) (usft) (usft) 12,700.00 9,017.88 9,125.00 8,156 22 39.99 12870 176.86 -4,90344 -3,354.15 6.875 1,510.23 513.85 1,071.44 Pass-Major Risk 12,700.00 9,017.88 9,150.00 8,177.88 39.99 128.70 176.09 -4,89943 -3,342.33 6.875 1,501.35 513.84 1,059.22 Pass-Major Risk 12,700.00 9.017.88 9,175.00 8,199.61 39.99 128.71 175.31 -4,895.63 -3,330.56 6.875 1,492.92 513.83 1,047.47 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10:00PM Page 33 COMPASS 5000.1 Build 61 ANN BP BAKER ls Travelling Cylinder Report 0 131) LNTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft ' (generic drilling rig) - Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft 3 (generic drilling rig) � '1 Site Error: 0.00 usft North Reference: True u, Reference Well: E-25 Survey Calculation Method: Minimum Curvature x, Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 --' Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-13-G-13A-G-13A Offset Site Error: 0.00 usft Survey Program: 100-BOSS-GYRO,9106-MVVD Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 *NIS n-El-W Hole Size Centre Distance Deviation (usft) (usft) (usft) (usft) (usft) (usft) (°) (usft) (usft) (in) (usft) (usft) (usft) 12,67021 9,017.88 10,844.00 8,989.91 39.76 76.13 146.91 -4,039.67 -3,980.79 3.500 172.91 38229 -207.62 FAIL-Major Risk,CC,ES,SF 12,883.80 9,017.88 10,825.00 8,990.05 39.86 76.07 148.29 -4,055.05 -3,991.95 3.500 177.13 384.10 -205.36 FAIL-Major Risk 12,700.00 9,017.88 10,800.00 8,99024 39.99 76.00 149.88 4,07528 -4,006.63 3.500 183.49 385.92 -201.04 FAIL-Major Risk 12,718.62 9,017.86 10,775.00 8,990.41 40.14 75.94 151.75 -4,095.55 4,021.27 3.500 190.76 387.61 -195.68 FAIL-Major Risk 12,735.34 9,017.84 10,750.00 8,990.38 40.28 75.87 153.42 4,116.06 4,035.55 3.500 199.30 388.73 -188.42 FAIL-Major Risk 12,750.00 9,017.81 10,725.00 8,989.88 40.40 75.81 154.99 4,13721 -4,048.86 3.500 209.79 389.36 -178.68 FAIL-Major Risk 12,786.73 9,017.76 10,700.00 8,988.84 40.55 75.74 156.84 -4,15820 4,062.25 3.500 220.93 389.77 -168.04 FAIL-Major Risk 12,782.15 9,017.71 10,675.00 8,988.47 40.68 75.68 158.45 -4,178.60 -4,076.84 3.500 231.45 38979 -157.66 FAIL-Major Risk 12,822.30 9,017.57 10,650.00 8,988.72 41.02 75.61 153.96 -4,198.35 4,092.16 3.500 240.85 390.96 -149.49 FAIL-Major Risk 1 12,871.28 9,017.39 10,625.00 8,989.58 41.43 75.55 147.67 -4,217.76 -4,107.90 3.500 247.41 389.36 -141.41 FAIL-Major Risk 12,922.67 9,017.21 10,600.00 8,990.69 41.86 75.48 141.12 -4,236.77 -4,124.08 3.500 250.81 383.85 -132.57 FAIL-Major Risk 12,974.98 9,017.03 10,575.00 8,991.28 42.27 75.41 134.88 4,25484 -4,141.34 3.500 250.16 374.31 -123.88 FAIL-Major Risk 13,000.00 9,016.95 10,550.00 8,991.05 42.47 75.34 135.40 4,27176 4,159.74 3.500 246.43 375.94 -129.01 FAIL-Major Risk 13,014.42 9,016.90 10,525.00 8,990.25 42.58 75.27 137.41 -4,287.63 -4,179.04 3.500 242.17 379.41 -136.66 FAIL-Major Risk 13,030.89 9,016.85 10,500.00 8,990.41 42.72 75.20 139.43 4,30224 -4,198.56 3.500 238.32 383.04 -144.14 FAIL-Major Risk 13,050.00 9,016.79 10,475.00 8,992.08 42.88 75.13 141.39 4,31848 -4,218.31 3.500 234.76 386.84 -151.81 FAIL-Major Risk 13,064.10 9,016.74 10,45000 8,994.30 4300 75.07 142.58 -4,333.89 4,237.86 3.500 232.24 38920 -156.74 FAIL-Major Risk 13,080.87 9,016.69 10,425.00 8,996.08 43.15 75.00 144.17 4,349.18 -4,257.55 3.500 230.49 391.89 -181.18 FAIL-Major Risk 13,100.00 9,016.62 10,400.00 8,996.78 43.32 74.94 146.34 -4,362.77 -4,278.51 3.500 227.61 394.39 -186.80 FAIL-Major Risk 13,114.60 9,016.58 10,375.00 8,996.84 43.46 74.88 148.08 -4,376.81 -4,299.19 3.500 226.14 395.94 -169.63 FAIL-Major Risk 13,131.57 9,016.52 10,350.00 8,996.56 43.62 74.82 150.17 -4,391.73 -4,319.25 3.500 226.67 397.37 -170.53 FAIL-Major Risk 13,150.00 9,016.47 10,325.00 8,996.34 43.80 74.78 152.37 4,407.60 -4,338.57 3.500 22929 398.47 -169.03 FAIL-Major Risk 13,164.97 9,016.42 10,300.00 8,99617 43.95 74.71 154.10 -4,424.38 4,357.09 3.500 233.95 399.00 -164.91 FAIL-Major Risk 13,181.10 9,016.37 10,275.00 8,996.18 44.11 74.66 155.90 4,441.95 -4,374.88 3.500 240.47 39921 -158.64 FAIL-Major Risk 13,203.61 9,015.94 10,250.00 8,996.72 44.33 74.61 156.01 -4,459.90 -4,392.26 3.500 248.05 399.80 -151.71 FAIL-Major Risk 13,227.87 9,014.31 10,225.00 8,997.82 44.57 74.56 155.29 -4,478.26 -4,409.19 3.500 256.11 400.57 -144.46 FAIL-Major Risk 13,251.35 9,011.56 10,200.00 8,999.32 44.80 74.52 154.26 4,497.30 4,425.33 3.500 265.12 401.32 -138.15 FAIL-Major Risk 13,273.69 9,007.88 10,175.00 9,000.70 45.02 74.48 153.12 -4,517.39 -4,440.12 3.500 275.78 402.01 -126.01 FAIL-Major Risk 13,294.77 9,003.47 10,150.00 9,001.92 45.23 74.45 151.93 -4,538.49 -4,453.47 3.500 288.05 402.66 -113.98 FAIL-Major Risk 13,314.55 8,998.50 10,125.00 9,00258 45.42 74.42 150.83 -4,56021 -4,465.74 3.500 301.55 403.26 -100.48 FAIL-Major Risk 13,332.93 8,993.19 10,100.00 9,005.88 45.60 74.39 149.22 -4,582.43 -4,476.95 3.500 316.19 403.80 -85.52 FAIL-Major Risk 13,350.00 8,987.64 10,075.00 9,008A4 45.77 74.35 147.84 -4,605.16 -4,487.03 3.500 332.03 404.27 -69.09 FAIL-Major Risk 13,366.47 8,981.75 10,050.00 9,010.13 45.92 74.32 148.62 4,628.09 -4,496.84 3.500 348.31 404.71 -52.13 FAIL-Major Risk 13,383.23 8,97521 10,025.00 9,010.83 46.08 74.29 145.53 -4,650.78 -4,507.30 3.500 364.22 405.15 -35.52 FAIL-Major Risk 13,400.00 8,968.14 10,000.00 9,010.91 46.24 74.25 144.42 -4,672.69 -4,519.32 3.500 378.90 405.58 -19.98 FAIL-Major Risk 13,418.10 8,959.90 9,975.00 9,011.28 46.41 74.21 143.13 4,69320 -4,533.60 3.500 391.67 406.05 -5.98 FAIL-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2.10:00PM Page 34 COMPASS 5000.1 Build 61 Idit III BP BAKER HUGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 ` t Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft ' e (generic drilling rig) e ; Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft .,, (generic drilling rig) A Site Error: 0.00 usft North Reference: True ,. Reference Well: E-25 Survey Calculation Method: Minimum Curvature Iiir--• Well Error: 0.00 usft Output errors are at 1.00 sigma 4,- = Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-13-Plan G-13B-G-13B Offset Site Error: 0.00 usft Survey Program: Rule Assigned:Major Risk Offset Well Error: 0.00 usft 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 (usft) (usft) (usft) (usft) (usft) (usft) 11 (usft) (usft) (in) (usft) (usft) (usft) 12,670.21 9,017.88 10,844.00 8,989.91 39.76 76.13 146.91 -4,039.67 -3,980.79 3.250 172.91 382.27 -207.60 FAIL-Major Risk,CC,ES,SF 12,683.80 9,017.88 10,825.00 8,990.05 39.86 76.07 148.29 -4,055.05 -3,991.95 3.250 177.13 384.08 -205.34 FAIL-Major Risk 12,700.00 9,017.88 10,800.00 8,990.24 39.99 76.00 149.88 -4,075.28 -4,006.63 3.250 183.49 385.90 -201.02 FAIL-Major Risk 12,718.62 9,017.86 10,775.00 8,990.41 40.14 75.94 151.75 -4,095.55 -4,021.27 3.250 190.76 387.59 -195.66 FAIL-Major Risk 12,735.34 9,017.84 10,750.00 8,990.38 40.28 75.87 153.42 -4,116.06 -4,035.55 3.250 199.30 388.71 -188.40 FAIL-Major Risk 12,750.00 9017.81 10,725.00 8,989.68 40.40 75.81 154.99 -4,137.21 -4,048.86 3.250 209.79 389.34 -178.66 FAIL-Major Risk 12,766.73 9,017.76 10,700.00 8,988.84 40.55 75.74 156.84 -4,158.30 -4,062.25 3.250 220.93 389.75 -168.02 FAIL-Major Risk 12,782.15 9,017.71 10,675.00 8,988.47 40.68 75.68 158.45 -4,178.60 4,078.84 3.250 231.45 389.77 -157.64 FAIL-Major Risk 12,822.30 9,017.57 10,650.00 8,988.72 41.02 75.61 153.96 -4,198.35 -4,092.16 3.250 240.85 390.94 -149.47 FAIL-Major Risk 12,871.26 9,017.39 10,625.00 8,989.58 41.43 75.55 147.87 -4,217.76 -4,107.90 3.250 247.41 389.34 -141.39 FAIL-Major Risk 12,922.67 9,017.21 10,600.00 8,990.69 41.86 75.48 141.12 -4,236.77 -4,124.08 3.250 250.81 383.83 -132.55 FAIL-Major Risk 12,974.96 9,017.03 10,575.00 8,991.28 42.27 75.41 134.68 -4,254.84 -4,141.34 3.250 250.16 374.28 -123.66 FAIL-Major Risk 13,000.00 9,016.95 10,550.00 8,991.05 42.47 75.34 135.40 4,271.76 -4,159.74 3.250 246.43 375.92 -128.99 FAIL-Major Risk 13,014.42 9,016.90 10,525.00 8,990.25 42.58 75.27 137.41 -4,287.63 4,179.04 3.250 242.17 379.38 -136.64 FAIL-Major Risk 13,030.89 9,016.85 10,500.00 8,990.41 42.72 75.20 139.43 -4,303.24 -4,198.56 3.250 238.32 383.02 -144.12 FAIL-Major Risk 13,050.00 9,016.79 10,475.00 8,992.06 42.88 75.13 141.39 -4,318.48 -4,218.31 3.250 234.76 386.82 -151.59 FAIL-Major Risk 13,084.10 9,016.74 10,450.00 8,994.30 43.00 75.07 142.58 4,333.89 -4,237.86 3.250 232.24 389.28 -156.72 FAIL-Major Risk 13,080.87 9,016.69 10,425.00 8,996.08 43.15 75.00 144.17 -4,349.18 -4,257.55 3.250 230.49 391.86 -161.16 FAIL-Major Risk 13,100.00 9,016.62 10,400.00 8,996.78 43.32 74.94 148.34 -4,362.77 -4,278.51 3.250 227.61 394.37 -166.58 FAIL-Major Risk 13,114.60 9,016.58 10,375.00 8,996.84 43.46 74.88 148.08 4,378.81 4,299.19 3.250 226.14 395.91 -189.61 FAIL-Major Risk 13,131.57 9,016.52 10,350.00 8,996.56 43.62 74.82 150.17 -4,391.73 -4,31925 3.250 226.67 397.35 -170.51 FAIL-Major Risk 13,150.00 9,016.47 10,325.00 8,99614 43.80 74.76 152.37 -4,407.60 -4,338.57 3.250 229.29 398.45 -169.00 FAIL-Major Risk 13,164.97 9,016.42 10,300.00 8,996.17 43.95 74.71 154.10 -4,424.38 4,357.09 3.250 233.95 398.98 -164.89 FAIL-Major Risk 13,181.10 9,016.37 10,275.00 8,996.18 44.11 74.66 155.90 -4,441.95 -4,374.88 3.250 240.47 399.19 -158.82 FAIL-Major Risk 13,203.61 9,015.94 10,250.00 8,996.72 44.33 74.61 156.01 -4,459.90 -4,392.26 3.250 248.05 399.78 -151.69 FAIL-Major Risk 13,227.87 9,014.31 10,225.00 8,997.82 44.57 74.56 155.29 -4,478.26 -4,409.19 3.250 256.11 400.55 -144.44 FAIL-Major Risk 13,251.35 9,011.56 10,200.00 8,999.32 44.80 74.52 154.26 -4,497.30 -4,425.33 3.250 265.12 401.29 -136.13 FAIL-Major Risk 13,273.69 9,007.88 10,175.00 9,000.70 45.02 74.48 153.12 -4,517.39 -4,440.12 3.250 275.76 401.99 -125.99 FAIL-Major Risk 13,294.77 9,003.47 10,150.00 9,001.92 45.23 74.45 151.93 -4,538.49 -4,453.47 3.250 288.05 402.64 -113.96 FAIL-Major Risk 13,314.55 8,998.50 10,125.00 9,003.58 45.42 74.42 150.63 -4,56021 -4,465.74 3.250 301.55 403.24 -100.46 FAIL-Major Risk 13,332.93 8,993.19 10,100.00 9,005.88 45.60 74.39 149.22 -4,582.43 -4,478.95 3.250 318.19 403.78 -85.50 FAIL-Major Risk 13,350.00 8,987.64 10,075.00 9,008.44 45.77 74.35 147.84 -4,605.16 -4,487.03 3.250 332.03 404.25 -69.07 FAIL-Major Risk 13,366.47 8,981.75 10,050.00 9,010.13 45.92 74.32 146.62 -4,628.09 -4,496.84 3.250 348.31 404.69 -52.11 FAIL-Major Risk 13,383.23 8,975.21 10,025.00 9,010.83 46.08 74.29 145.53 -4,650.78 -4,507.30 3.250 364.22 405.13 -35.50 FAIL-Major Risk 13,40000 8,968.14 10,000.00 9,010.91 46.24 74.25 144.42 4,672.89 -4,519.32 3.250 378.90 405.56 -19.96 FAIL-Major Risk 13,418.10 8,959.90 9,975.00 9,01128 46.41 74.21 143.13 -4,693.20 -4,533.60 3.250 391.67 406.03 -5.96 FAIL-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor.ES-min ellipse separation 2/8/2013 2:10:00PM Page 35 COMPASS 5000.1 Build 61 1113%l. BP BAKER HUGHES Travelling Cylinder Report 0 by 1NTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well E-25-Slot 25 - �' -;' p Y Project: Prudhoe Bay TVD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Reference Site: PB E Pad MD Reference: 44:25 12/24/1987 00:00 @ 67.80usft (generic drilling rig) Site Error: 0.00 usft North Reference: True Reference Well: E-25 Survey Calculation Method: Minimum Curvature Well Error: 0.00 usft Output errors are at 1.00 sigma Reference Wellbore E-25A Database: EDM R5K-Alaska PROD-ANCP1 Reference Design: Plan 4 Offset TVD Reference: Offset Datum Offset Design PB G Pad- G-13-Plan G-13B-Plan#4 G-13B Offset Site Error: 0.00 usfl Survey Program: 98-BOSS-GYRO,5498-INC+TREND,5800-MVVD,5800-MWD+IFR+MS,8550-MWD+IFR+MS Rule Assigned:Major Risk Offset Well Error: 0.00 usfl 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 (usfl) (ustt) (usfl) (usft) (usfl) (usfl) I') (usfl) (usfl) (in) (usfl) (usfl) (usft) 12,864.08 9,017.42 11,831.83 8,973.97 41.37 43.43 165.86 -4,093.15 -4,199.08 4.312 99.89 298.30 -184.09 FAIL-Major Risk,CC,ES,SF 12,869.86 9,017.40 11,825.00 8,973.92 41.42 43.42 164.09 -4,099.98 -4,199.68 4.312 104.53 298.15 -180.77 FAIL-Major Risk 12,892.35 9,017.32 11,800.00 8,973.72 41.61 43.41 158.25 -4,124.88 -4,201.81 4.312 121.28 297.26 -166.95 FAIL-Major Risk 12,917.10 9,017.23 11,775.00 8,973.52 41.81 43.40 153.00 -4,149.77 -4,203.95 4.312 137.45 295.67 -151.52 FAIL-Major Risk 12,944.32 9,017.14 11,750.00 8,973.31 42.03 43.39 148.04 -4,174.88 -4,206.10 4.312 152.80 293.18 -135.17 FAIL-Major Risk 12,974.20 9,017.04 11,725.00 8,973.11 42.28 43.37 143.18 -4,199.58 -4,208.24 4.312 167.12 289.56 -118.25 FAIL-Major Risk 12,995.10 9,016.97 11,700.00 8,972.91 42.43 43.36 14266 -4,224.49 -4,210.39 4.312 180.64 289.88 -105.79 FAIL-Major Risk 13,009.87 9,016.92 11,675.00 8,972.71 42.54 43.35 14293 -4,249.40 -4,212.53 4.312 194.73 292.44 -94.86 FAIL-Major Risk 13,025.00 9,016.87 11,650.00 8,972.51 42.67 43.34 143.94 -4,274.31 -4,214.68 4.312 209.46 294.85 -83.05 FAIL-Major Risk 13,037.52 9,016.83 11,625.00 8,972.31 42.77 43.33 144.71 -4,299.21 -4,216.83 4.312 224.79 296.69 -69.97 FAIL-Major Risk 13,050.00 9,016.79 11 600.00 8,972.11 42.88 43.32 145.55 -4,324.12 -4,218.97 4.312 240.68 298.37 -56.11 FAIL-Major Risk 13,062.77 9,016.75 11,575.00 8,971.91 42.99 43.31 146.49 -4,349.03 -4,221.12 4.312 257.09 299.95 -41.57 FAIL-Major Risk 13,075.00 9,016.71 11.550.00 8,971.71 43.10 43.30 147.42 -4,373.93 -4,223.26 4.312 273.99 301.31 -26.27 FAIL-Major Risk 13,085.80 9,016.67 11,525.00 8,971.51 43.20 4329 148.23 4,398.84 -4,225.41 4.312 291.34 302.40 -10.20 FAIL-Major Risk 13,100.00 9,016.62 11,500.00 8,971.31 43.32 4328 149.50 4,423.75 -4,227.55 4.312 309.15 303.67 6.16 Pass-Major Risk 13,106.79 9,016.60 11,475.00 8,971.11 43.39 4327 149.91 -4,448.65 -4,229.70 4.312 327.28 304.18 23.64 Pass-Major Risk 13,118.58 9,016.57 11,450.00 8,970.91 43.48 4326 150.72 -4,473.56 -4,231.84 4.312 345.81 304.88 41.37 Pass-Major Risk 13,125.00 9,016.54 11,425.00 8,970.71 43.56 43.25 151.40 -4,498.47 -4,233.99 4.312 364.68 305.39 59.64 Pass-Major Risk 13,134.88 9,016.51 11,400.00 8,970.51 43.65 43.24 152.28 -4,523.38 -4,236.13 4.312 383.87 30511 78.23 Pass-Major Risk 13,143.42 9,016.49 11,375.00 8,970.31 43.74 43.23 153.02 -4,548.28 -4,238.28 4.312 403.35 306.29 97.28 Pass-Major Risk 13,150.00 9,016.47 11,350.00 8,970.11 43.80 43.22 153.55 -4,573.19 -4,240.43 4.312 423.12 306.51 116.77 Pass-Major Risk 13,159.40 9,016.44 11,325.00 8,969.91 43.89 43.22 154.44 -4,598.10 -4,242.57 4.312 443.13 30679 136.46 Pass-Major Risk 13,166.87 9,016.41 11,300.00 8,969.71 43.97 43.21 155.12 -4,623.00 4,244.72 4.312 483.39 306.94 156.54 Pass-Major Risk 13,175.00 9,016.39 11,275.00 8,969.51 44.05 43.20 155.89 -4,647.91 -4,246.86 4.312 483.88 307.04 176.90 Pass-Major Risk 13,180.88 9,016.37 11,250.00 8,969.31 44.11 43.19 158.40 -4,872.82 -4,249.01 4.312 504.58 307.08 197.58 Pass-Major Risk 13,190.65 9,016.31 11,225.00 8,969.11 44.20 43.19 156.72 -4,897.72 -4,251.15 4.312 525.48 306.67 218.23 Pass-Major Risk 13,205.60 9,015.85 11,200.00 8,968.91 44.35 43.18 156.51 -4,722.63 -4,253.30 4.312 546.35 307.14 238.60 Pass-Major Risk 13,220.87 9,014.90 11,175.00 8,988.71 44.50 43.17 156.28 -4,747.50 -4,255.82 4.312 567.01 307.82 258.74 Pass-Major Risk 13,237.03 9,013.37 11,150.00 8,968.52 44.66 43.18 156.02 -4,772.24 -4,259.41 4.312 587.02 308.13 27821 Pass-Major Risk 13,254.01 9,011.17 11,125.00 8,968.35 44.83 43.14 155.71 -4,796.80 -4,264.08 4.312 606.34 308.67 296.98 Pass-Major Risk 13,271.72 9,008.25 11,100.00 8,968.18 45.00 43.13 155.37 -4,821.13 -4,269.81 4.312 624.93 309.23 315.01 Pass-Major Risk 13,290.04 9,004.54 11,075.00 8,968.02 45.18 43.12 154.97 -4,845.19 -4,278.60 4312 642.76 309.80 332.29 Pass-Major Risk 13,308.85 9,000.02 11,050.00 8,96717 45.37 43.10 154.53 -4,868.92 -4,284.44 4.312 659.82 310.39 348.80 Pass-Major Risk 13,328.02 8,994.67 11,025.00 8,967.73 45.55 43.09 154.04 -4,892.30 -4,293.30 4312 676.08 310.98 364.53 Pass-Major Risk 13,347.41 8,988.52 11,000.00 8,967.60 45.74 43.07 153.49 -4,915.26 -4,303.17 4.312 691.52 311.57 379.50 Pass-Major Risk 13,366.90 8,981.59 10,975.00 8,967.49 45.93 43.05 152.88 -4,937.78 -4,314.03 4.312 706.14 312.15 393.70 Pass-Major Risk 13,386.34 8,973.94 10,950.00 8,967.38 46.11 43.03 152.22 -4,959.80 -4,325.87 4.312 719.94 312.72 407.14 Pass-Major Risk 13,405.62 8,965.65 10,925.00 8,967.29 46.29 43.01 151.51 -4,98128 -4,338.65 4.312 732.91 313.26 419.84 Pass-Major Risk 13,425.00 8,956.60 10,900.00 8,967.21 46.47 42.99 150.73 -5,002.18 -4,352.36 4.312 745.08 313.80 431.81 Pass-Major Risk CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 2/8/2013 2:10.00PM Page 36 COMPASS 5000.1 Build 61 | r L -..„ 1 | 1 1 1, | 1 = 1 3) . 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I I' 11 o 11 > 11 1 1 1 1 1 ~ / z IiI=IIIIII i ,( TRANSMITTAL LETTER CHECKLIST WELL NAME ems(-(e £`1 S /1_ PTD# 2 1 3 C 3 c Development Service Exploratory Stratigraphic Test Non-C ventional Well � Q� FIELD: r---1 t ` gr, POOL: Check Box for Appropriate Let er/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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