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212-025
STATE OF ALASKA • AASKA OIL AND GAS CONSERVATION COMM!, 1 REPORT OF SUNDRY WELL OPERATIONS 1 Operations Performed Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Operations shutdown ❑ Suspend 0 Perforate 0 Other Stimulate ❑ Alter Casing 0 Change Approved Program ❑ Plug for Redrill 0 Perforate New Pool ❑ Repair Well I1 Re-enter Susp Well ❑ Other:Pull/ReSet LTP El 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5 Permit to Drill Number: 212-025 3. Address: P O.Box 196612 Anchorage, Development 8 Exploratory El AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-20387-03-00 7 Property Designation(Lease Number): ADL 0028306 8. Well Name and Number PBU C-12C 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 13628 feet Plugs measured feet true vertical 9017 feet Junk measured 10308 feet Effective Depth: measured 13586 feet Packer measured See Attachment feet true vertical 9025 feet Packer true vertical See Attachment feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor Surface See Attachment Intermediate 9 C E r�E D Production M Liner J U L 1 4 2015 Perforation Depth: Measured depth: 12485-12585 feet 12745-13295 feet 13345-13585 feet C),r'i�A cC True vertical depth: 9029-9031 feet 9040-9032 feet 9030-9025 feet I� Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): SCANNED 2 8 2J) 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: 335 23374 36 600 1191 Subsequent to operation' 443 24558 47 620 1167 1 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 Q( Service 0 Stratigraphic ❑ Copies of Logs and Surveys Run ❑ 16.Well Status after work: Oil II Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG ❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature Acv ------- Phone +1 907 564 4424 Date 7/14/15 Foran 10-404 Revised 5/2015 ' " 7-/2/ /I1 quIprgit Onginal Only /1lc 7/�c- RBDMSJUL 1 7 2015 Packers and SSV's Attachment PBU C-12C SW Name Type MD TVD Depscription C-12C PACKER 10281 7776.72 4-1/2" WFD ER Packer C-12C PACKER 10298.78 7790.74 4-1/2" Guiberson Packer CD Q. 000 0300 N- CO N r (O � o o vLC) O N v N- Ln N- U o 0 0 0 0 0 0 i MN- O N V CO O) CO O N m V (O CO _ N- CO CO CO O) LI) N- CO Lf) CO CO CA f9 f� O (O N CU 00 co O N- O) N CO CO CO I— H CO N- N- O Lf) O O) N- CO N O LO [-- co co N CO CO CO CO N I- I ti N- 00 LO LO C) C) •— N LI) 00 N O) N N- CO co O) CO M O O M O v o CISI I I 1 , 1 IIII V < N co co v - 0) r0 0 M CO CO N C) I Cr) Cr) N O O O O N O C• U dO 0 0 00 Leo 000000 C) O J _J CO J J C •U) p N V 4 0 0 V c NUm ' N � c\ coN - U - N p �? Ln i� c� t� -- N co M i o M M N V = O V d N 0 0 M 0 J W 01 0 C W U " co D 00I¢iCCCCCLCDZZ_ Z 0 W W W W m m Q D H Z_ Z_ Z_ Z_ D D a 2 a eo/ E / % n p % w L I / . 0_ / ƒ / 3 2 . u) 0 CO 0 < 0- c 0- 0 / j \ / - >- w < I w - t E <co i/ / w \ \ a \ k 2 2 3 >' o. R 77777 / E \ R - N ® / ƒ / / gyp/ 0 „- CD � � mR ± / ± G a2 � U ( \ .U < ƒ \ / 0 on \ � t ƒ \ m \ a A ƒ / m \ / / ƒ o - O > b a \ E _ � - R E m @ a CC / \ �_ \ / % / 00 c / >. ± rxw \ ® 2 / ix ± \ 0 0 & L * < CU < � 2 � / LL / p E 0 $ O < < 0 O \ O0g ƒ « ARE z D 0_ CD / / 0 / § 0 / U_ I 0 = G 12 / \ \ LU WOJ -A \ L a # 0 & 0 0 + % / u s a 2 § - 2 < / \ 0 w W 0\ - : I ± : m _1 2 g o : a E H r r \ \ / / \ 5 0 / < TREE= 6-3/8'CNV 1 A ACTUATOR= BAKER C C—1 2C S***RSH IN HOLE @ UNKNOWN DEPTHH**1925'. ORIG KB. ELEV 62.94' ORIG BF.ELEV 32.51' I 1 ORIG KOP= 2300' Max Angle= 100' 13591' I ---;7'I 2004' OTIS SSSV NIP, =5.962' Datum M D= 11685' / 'Datum ND= 8800'SS 2564' —19-5/8"IN FKR 30'INSULATED CONDUCTOR — -110 13 3/8'CSG,72#,L-80 BUTT,Co= 12.347' — 2681' 102-Mi` -7(-><y-1/2_`' wrB E2 PK.e- '/55 10278' H7"20'GUBERSON FBR 10298' —19-5/8"x 7"GUBERSON FKR,D=3.833" 7"TBG,26#,L-80 U4S,.0383 bpf,D=6.276" H 10278' 1•@>298� Minimum ID = 1.78" @ 10325' / EPL 10308' -3.70'DEPLOY SLV,ID=3.00' LNR WIPER PLUG BUSHING (STEEL) .v 10317' 3.00"BTTGBV1DOYSLV,D=2.250 w/WIPER PLUG BUSHING,13=1.78"(4)10325' FISH CENTRALIZER ARM=9'L X 3/4'H X 1/4' —{ ? 10327' -'2-3/8'PUP)a0, Co= 1.995' TAPERING TO 1/8"LENGTH,2 PNS, WI-EEL. 1"WIDE,3/8"THICK(06/12/12) 10345' —4-1/2'OTIS X NIP,ID=3.813' BEHIND (ELMD 10338) CT LNR !i 10344' '-13.70"DEPLOY SLV v✓4'PROFILE,ID=2.36' I , 10376' --14-112-XN l'4,),MILLED TO 3.80'(07/11/98) 3-1/2"LNR,9.3#,L-80 Sit,.0087 bpf,D —=2.992" — 10395' - ----- 10402' —{9-5/8"X 7"BOT LNR HGR,0= 4-1/2'TBG, 12.6#,L-80 HYD,.0152 bpf,D=3.958' H 10438'_ / \ 10395' �3 1/r x 33/16"xo,ID=2.80" BEHIND _ 10438' -4-1/2"MULESHOE,D=3.958' CT LNR A 10433• ELMD TT LOCOED ON XX/XX/)0( II ti A A • 9-5/8"CSG,47#,L-80 BUTT,D=3.958" —1 10957' }--A 66, a 7"LNR,29#,L-80 BUTT,.0371 bpf,D=6.184" 11381' MLLOUT WINDOW(C-12B) 11381'-11389' 3-3/16'MONOBORE VVI 'STOCK(05/18/12) 11625' 4 3-3/16"LNR,6.2#,L-80 TCI,.0076 bpf,D=2.80" H 11625 PERFORATION SUMMARY y 2.74"MLLOUT WINDOW(C-12C)11625'- 11630' REF LOG: MCNL ON 05/30/12 ANGLE AT TOP PERF: 91°©12485' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sgz SHOT SQZ 1.56" 6 12485-12585 O 06/01/12 )[ 12902'CTM RESTRICTION(1.69'VEMl1Po WILL NOT 1.56" 6 12745-13295 O 06/01/12 1.56" 6 13345-13585 0 06/01/12 PASS THROUGH(01/05/15) FBTD —1 13586' j ji 2-318'LNR 4.7#,L-80 STL .0039 bpf,D=1.995' J 13624'I 362 I DATE REV BY COILINTS DATE REV BY COMMENTS FRUDHOE BAY INT 12/20/79 N1ES ORIGINAL COMPLETION 01/05/15 F VJMJ ASH-LOST RPM TS (12/24/14) WELL: C-12C 07/21/98 NORDIC;CTD SIDETRACK(C-12A) 01/05/15 JGU PJC FISH TS/RESTRICTION FOLK)DH PERMIT No: 2120250 09/21/09 NOI IC2 CTD SIDETRACK(C-12B) 03/27/15 CB/PJC PEW DATE CORRECTION API No: 50-029-20387-03 06/02/12 NORDIC 1 CTD SIDETRACK(C-12C) 03/31/15 PJC DEPLOY SLV/FISH CORRECTIONS SEC 19,T11 N,R14E,555'FTL 8 1220'FEL 09/11/12 PJC LTP DEPTH CORRECTION 09/16/12 AK/PJC FINAL DRLG CORRECTIONS 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. .. .i.../ - Oas- Well History File Identifier Organizing (done) E Two-sided ❑ Rescan Needed R CAN: OVERSIZED: NOTES: for Items: ❑ Ma s: Grayscale Items: Logs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: BY: Maria Date: . / /s/ LI Project Proofing BY: daj_- Date: rI P if lsl ill? Scanning Preparation 3 x 30 = 70 + 1b = TOTAL PAGES i 0 tO (Count does not include cover sheet) BY: MOM Date: /11/ At, /s/ M r I 1 Production Scanning Stage 1 Page Count from Scanned File: (Count does include cover heet g ) J7 Page Count Matches Number in Scanning Preparation: YES NO BY: 12 Date: a i i/ {� /s/ yofI Stage 1 If NO in stage 1, page(s)discrepancies were found: YES NO BY: Maria Date: /s/ Stage 2 Additional Well Reports: YES NO TOTAL PAGES: Digital version appended by: Meredith Michal Date: /s/ Final Page Count: Stage 1 + Stage 2: TOTAL PAGES: Scanning is complete at this point unless rescanning is required. ReScanned BY: Maria Date: /s/ Comments about this file: Quality Checked 7/8/2014 Well History File Cover Page_20140708.doc o Il Cs;+ o IcL:�J co coc E >- >- < cow N. N.a Nw 10 Cy ^ >. C0 co E _ Ur E . 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Ci(--) t4140'4) iori ai z W ~x x X OJi+, (�( ®1,e ® . 0) 0 01_ I klt 1 t 1 t 1 1 i 1 � . 1 Ca Ca W . 0 G> u o CCo o ti 0 0 0 44.7 0 ' ' o o ' CM .NT- 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 o n 49 o rn V o 0 0 05 r u: H H 2 r� ° ap 4 oo o X X X Q F- o C7 a Oo 3 o ' Z I w- .a �--� W in co O T CO D CO "9 O CO et U 0 Q N N M N 00 O .1- o 0 0 0 0 0 0 0 m U 00 m U U m 00 00 0 0 m 00 C o d la N Lip, (NI v1 > rn Z. Y a) ^ rtSE.. xf (O m (0 v" Y OU C ' C Y CI- v 42 a m J U N 0 Q o m Q U Q n m m U m m ' u7 �n Q N o Q JO ,, ai M T N M T 0) N T O O O 0) O C N . e w E oq c5 W ,...4D N O N M N T O T O M T O N O N M v ' h0 co E z co co .4 _ N o J Y N o 'n 07 U W Z in U co U LL 2 2 u: U m ,- v) o V� " Q C� •0 x E m ooi Q Letter of Transmittal , Mini BAKER Date: HUGHES July 17, 2012 AWTO5 To: ®V From: State of Alaska AOGCC 0 • Baker Hughes INTEQ 333 W. 7th Ave., Suite 100 6C tigo n 795 East 94th Avenue Anchorage, Alaska 99501 \, O. V Anchorage, Alaska 99515 Ov Bill Michaelson V A3 (13 Please find enclosed the directional survey data for the following well(s): C-12CPB1 C-12C c l a - 0 ?C C-27C a1 ( 2, ' O L-1.2. C-01BPB1 C01B L , J-27B a2 la 7 CJ 5 t B-20A 9. 1 D., ' Co 7 4o B-05C o2 ( a -- o o 07-35A o10,, , a (c, 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: . (")-4/70, State of Alaska AOGCC DATE: rte` PRINT DISTRIBUTION LI Zig`3 EC BAKER Si�v I 0 HUGHES AOGCC COMPANY BP Exploration(Alaska)Inc. _ INTERMEDIATE FINAL Yes (mandatory) WELL NAME 12j A RUN NUMBER Z\ 02-5 (mandatory) 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(FEDEXWILL NOT DELIVER TO P.O.BOX) LOGS LOGS image) FILM PERSON ATTENTION #OF PRINTS #Ur nPHIN I S #OF COPIES #OF COPIES if �7 1 BP Exploration(Alaska)Inc. 3 I 1 I Petrotechnical Data Center LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 2 ConocoPhillips Alaska Inc. I I 1 I I Attn Ricky Elgarico PO Box 100360 Anchorage,Alaska 99510 3 ExxonMobil,Alaska j 1 I 1 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 Christine Shartzer 333 West 7th Ave,Suite 100 Anchorage,Alaska 99501 5 DNR-Division of Oil&Gas I I 1 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 RECL IA BAKER PRINT DISTRIBUTION LISW 10 2G'13 HUGHES AOGC0 COMPANY BP Exploration(Alaska)Inc. INTERMEDIATE FINAL Yes (mandatory) � �^ WELL NAME C— '� \ ^ RUN NUMBER 2 (mandatory) 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 (digitalCD / ADDRESS(FEDEX WILL NOT DELIVER TO P.O.BOX) LOGS LOGS image) FILM PERSON ATTENTION #OFPRINTS #Ob THIN I S #OF COPIES #OF COPIES V C) �1 V LI V 1 BP Exploration(Alaska)Inc. I 3 I 1 I I Petrotechnical Data Center LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 2 ConocoPhillips Alaska Inc. I I 1 I I Attn Ricky Elgarico PO Box 100360 Anchorage,Alaska 99510 3 ExxonMobil,Alaska I 1 I 1 I 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 Christine Shartzer 333 West 7th Ave,Suite 100 Anchorage,Alaska 9951)1 5 DNR-Division of Oil&Gas I I 1 I 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 STATE OF ALASKA RECEIVED ALA.,..A OIL AND GAS CONSERVATION COMM,—..,ION AUG 2 4 2012 REPORT OF SUNDRY WELL OPERATIONS �/�i 1.Operations Abandon U Repair Well H Plug Perforations LJ Perforate U OtAQG PacKer Set Performed: Alter Casing ❑ Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended Well❑ 2.Operator 4.Well Class Before Work: 5.Permit to Drill Number: Name: BP Exploration(Alaska),Inc Development Q Exploratory ❑ . 212-025-0 3.Address: P.O.Box 196612 Stratigraphic❑ Service ❑ 6.API Number: 1 Anchorage,AK 99519-6612 50-029-20387-03-00 7.Property Designation(Lease Number): /11 8.Well Name and Number: ADL0028306 —,;) 33 as sl)3 PBU C-12C 9.Logs(List logs and submit electronic and printed data per 20AAC25.071): 10.Field/Pool(s): To Be Submitted PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth measured 13628 feet Plugs measured None feet true vertical 9017.3 feet Junk measured None feet Effective Depth measured 13586 feet Packer measured See Attachment feet true vertical 9024.92 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20"91.5#H-40 29-109 29-109 1490 470 Surface 2653 13-3/8"72#L-80 28-2681 28-2661.72 4930 2670 Intermediate None None None None None None Production 10930 9-5/8"47#L-80 27-10957 27-8287.28 6870 4760 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) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 0 0 0 0 0 Subsequent to operation: 1849 919 129 0 259 14.Attachments: 15.Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development Q 0 Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work: Oil„ Q Gas ❑ WDSPL❑ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP❑ SPLUG❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Nita Summerhays Prepared by Garry Catron 564-4424 Printed Name Nita Summerhays , TitlE Petrotechnical Data Technician Signature ,,,,,„,J'rVowz.IZ3'„,,.,_ Phone 564-4035 Date 8/24/2012 pRsA V I, - � A fir — Form 10-404 Revised 10/2010 FIBM S A�7 vSubmit Original Only TREE= 6-3/8"CIW 'WELLHEAD= FMC C-12C _4 '(' SAF - NOTES:WELL ANGLE> 70°@ 11926'. !ACTUATOR= BAKER C {ORIG KB.ELEV 62.94' ORIG BF. ELEV 32.51' ORIG KOP= 2300' PJC DRAFT Max Angle= 100'@ 13591' I ® I - 2004' H7"OTIS SSSV NIP,ID=5.962' DaturnMD= 11685' Daturas TVD= 8800'SS 30"INSULATED CONDUCTOR — 110 -V 2564' H9-5/8"DV PKR 13-3/8"CSG,72#,L-80 BUTT,ID= 12.347' -f 2681' 10278' --17"20'GUBERSON PBR 10298' —9-5/8"x 7"GUSH60N H(R,ID=3.833" 7"TBG,26#,L-80 LJ4S,.0383 bpf,D=6.276" H 10278' 10275'SLMD —45 BKR KB LTP,D=2.39"(06/24/12) i 10308' —1 . 0"DEPLOY SLV,ID=3.00" Minimum ID = 1.920" @ 10337' 10317' —3.00'BTT GEN II DEPLOY SLV,ID=2.250 3-1/2" CENTRALIZER NO-GO _____.--- 10327' H2-3/8"PUP)D,ID= 1.995' 1`--------1 10345' —4-1/2"OTIS X NIP,ID=3 813" BEHIND (ELMD 10338') 1 CT LNR 1 \\ �, ,, 10344' 1-1?..70"DEPLOY SLV vol 4'PROFILE,ID=2.36' ^111------- 10376' 1-14-1/2')'1 NIP,MILLED TO 3.80"(XX/)WXXJ 3-1/2'LNR,9.3#,L-80 STL, .0087 bpi,ID=2.992' — 10395' 10402' —{9 518"X 7"BOT LNR HGR 13=7?? ' ` 10395' —3-1/2"x 3-3/16")0,ID=2.8o- 1 BEHIND 4 1/2'TBG, 12.6#,L$0 HYD,.0152 bpf,ID=3.958' -i 104$8• f 10438' -14 1/2"MULESHOE,ID=3.958" CT LNR r 10433' ELMD TT LOGGED ON XXIXX/XX 'a • 9-5/8'CSG,47#,L-80 BUTT,ID=3.958" — 10957• -I , k I., 7"LNR,29#,L-80 BUTT,.0371 bpf,ID=6.184" H 11381' . \ MLLOUT WINDOW(C-12B) 11381'-11389' 3-3/16"MONOBORE VVI-IPSTOCK(05/16/12) —I 11476' 3-3/16"LNR,6.2#,L-80 TCII,.0076 bpf,D=2.80" ^-11476 . PERFORATION SUMMARY 2.74'MILLOUT WINDOW(C-12C)11476'- 11482' REF LOG: MCNL ON 05/30/12 ANGLE AT TOP PERF: °@' Note:Refer to Production DB for historical perfdata SIZE SPF ', INTERVAL Opn/Sqz DATE 1.56' 6 12485-12585 0 06/04/12 1.56' 6 , 12745-13295 0 06/04/12 1.56" 6 13345-13585 0 06/04/12 PBTD H 13586' Hsk 2.3/8'LNR,4.7#, L-80 STL, .0039 bpf,ID= 1.995" H 13624' DATE REV BY COMVE TTS DATE REV BY COMMENTS PRIJDHOEBAY UNIT 12/20/79 NI ES ORIGINAL COMPLETION 06/27/12 GJB/JMD SET KB LTP(06/24/12) WELL: C-12C 07/21/98 NORDIC 2 CTD SIDETRACK(C-12A) 07/17/12 JMJPJC WS/FALLOUT ODFRECTON FERMI No: 2120250 09121/09 NORDIC2 CTD SIDETRACK(C-12B1 All No: 50-029-20387-03 06/02/12 NORDIC 1 CTD SIDETRACK(C-12C) SEC 19,T11N,R14E,555'FTL&1220'Fa 06/06/12 PJC DRLG HO CORRECTIONS 06/15/12 PJC DRG DRAFT CORRECTIONS BP Exploration(Alaska) Daily Report of Well Operations ADL0028306 AC IVI IA i ' ' ' DIEL S/IONARRI 'os Cl TAG DEPLOYMENT SLV @ 10,285' SLM W/3.50" L.I.B. (Impression of partial f.n.w/metal debris). BRUSHED THE TOP OF DEPLOYMENT SLEEVE @ 10,285' SLM W/LRS PUMPING DIESEL(No issues). TAG DEPLOYMENT SLV @ 10,285' SLM W/3.80" BARBELL, 3.73" L.I.B. (Full impression of sleeve). CURRENTLY RIH W/HES DPU, BAKER LTP TO DEPLOYMENT SLV @ 10,308' MD. 6/23/2012 ""JOB IN PROGRESS, CONTINUED ON 6/24/12 WSR*** ***CONTINUED FROM 6/23/12 WSR*"'(Post Cl D) SET BAKER 45"KB" LINER TOP PACKER (OaI= 14.18')a 10,275' SLM.; SET 2.813"CAT STANDING VALVE IN 45"KB" PACKER @ 10,275' SLM. LRS PERFORMED SUCCESSFUL MIT-T TO 2000 PSI. PULLED 2.813"CAT STANDING VALVE FROM 10,275' SLM. 6/24/2012 "**WELL S/I ON DEPARTURE, NOTIFIED PAD OPERATOR OF WELL STATUS*** CTU#9 w/1.75"CT: Job Scope: N2 Lift Post CTD: Continued from 24 June 12. MU and RIH with 2.5"JSN BHA for N2 lift. RIH to 2000' and began lifting @ 700 scf/m. RIH to 5300' and upped rate to 1000 scf/m. RIH to 6500' and lifted until well appeared to be slugging. Dropped rate to 700 scf/m. Shut pump down and monitor after 3 hours of consistant flow 6/25/2012 <<<Job in Progress>>> CTU#9 w/1.75"CT: Job Scope: N2 Lift Post CTD: Continued from 25 June 12. Continue RIH while pumping 700 scfm N2. Park at 8500 and lift at 700 scfm. Shut down N2 and monitor well. Well flowing at 1600 bfpd, 0.75 scfm, 64 deg F, and 0%WC. POOH and monitor well. Well put into test for 4 Hrs. Final rates 1750 bbl/d oil, 800,000 a day gas with .1%water cut. 6/26/2012 «<Job Complete>>> FLUIDS PUMPED BBLS 74 DIESEL 40 50/50 METH 114 TOTAL Perforation Attachment ADL0028306 Perf Opera Meas Meas SW Operation tion Depth Depth ND Depth ND Depth Name Date Code Top Base Top Base C-12C 6/4/12 PER 12485 12585 9029.02 9030.92 C-12C 6/4/12 PER 12745 13295 8977.39 8968.91 C-12C 6/4/12 PER 13345 13585 8967.48 8962.15 AB ABANDONED MIR REMOVED APF ADD PERF MIS MECHANICAL ISOLATED BPP PULLED MLK MECHANICAL LEAK BRIDGE OPEN BPS PLUG SET OH HOLE FCO FILL CLEAN OUT STC STRADDLE PACK,CLOSED FIL FILL STO STRADDLE PACK, OPEN SQF SQUEEZE FAILED SPS SAND PLUG SET SQZ SQUEEZE SL SLOTTED LINER PER PERF SPR SAND PLUG REMOVED RPF REPERF Packers and SSV's Attachment ADL0028306 SW Name Type MD TVD Depscription C-12C PACKER 10275 7709.05 45 BKR KB LTP C-12C PACKER 10298 7727.19 7" Guiberson Polar Packer m Mcocoom 00000 M I- h- N O N = O — v � o oN- (OvLO 0 N--. = v N 1O I- C) 00 (00 ,0m 0 0 0 0 0 00 oo cO TTN- cO MMLOCOMN (.01.0 O O (O N 00 N N- M (O O 00 (.0 00 00 f- O = (O 00 M 00 (O N- O O 00 (O tO N (O N- O) O) N- 00 00 00 N N- N- ▪ I I I I I I I I H O) (O O) 00 (O O) ,— (O (O N I- O V 4 N N- N (O (NIN N N. N- CO CO CO N- N- N- N- Q� l0 N N- CO co O) (NJ O) co co (O N- co a COM m 0 0 0 0 = = = = = MCDCI Q M LO v u) N o0 Cn N N O O O O N N N NO Qr C � J Q o0 0 o 0 o Cr) V00 OO J O Op J O J I J J 4* COJ CO 0 * N N J * (N -1 (1) .� iT) • 46 O N CO N ▪ � � i� N N N M M O) r O) co ccomiU MO O) M t O aY O C) . 00 r— m O J M O O O N Z 0 N HW O 0 V O O '° oWCCCLCCoLI: zz V z W w w W O m m O z_ z z_ z a J D J U J J J J M W 1- 1- 2`67 1 RI Ail HUGHES bakerhughes.com PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION(ALASKA), INC COUNTY NORTH SLOPE BOROUGH WELL NAME C-12C STATE ALASKA FIELD PRUDHOE BAY UNIT DAI L 8/22/2012 THIS DISTRIBUTION LIST AUTHORIZED BY: Alfredo Martinez SO#4630292 Log CD Log CD Copies Copies Client / Partners Copies Copies Client / Partners 2 Company BP EXPLORATION(ALASKA), INC Company Person PETROTECHNICAL DATA CENTER Person Address LR2-1 Address 900 E BENSON BLVD ANCHORAGE,AK 99508 1 1 Company EXXON MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082 A HOUSTON,TX 77002 1 1 Company STATE OF ALASKA-AOGCC Company Person CHRISTINE MAHNKEN Person Address 333 W. 7TH AVE. Address SUITE 100 ANCHORAGE,AK 99501 Company Company Person Person Address Address Company Company Person Person Address Address Company Company Person Person Address Address Page 1 of 1 2-\25 ,41.■ BAKER HUGHES www.bakcmughes.com PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION (ALASKA), INC COUNTY NORTH SLOPE BOROUGH WELL NAME C-12CPB1 STATE ALASKA HELD PRUDHOE BAY UNIT DAIS 8/16/2012 THIS DISTRIBUTION LIST AUTHORIZED BY: Alfredo Martinez SO#4630292 Log CD Log CD Copies Copies Client / Partners Copies Copies Client / Partners 2 Company BP EXPLORATION (ALASKA), INC Company Person PETROTECHNICAL DATA CENTER Person Address LR2-1 Address 900 E BENSON BLVD ANCHORAGE,AK 99508 1 1 Company EXXON_MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082 A HOUSTON,TX 77002 1 1 Company STATE OF ALASKA-AOGCC Company Person CHRISTINE MAHNKEN Person Address 333 W.7TH AVE. Address SUITE 100 ANCHORAGE,AK 99501 Company Company Person Person Address Address Company Company Person Person Address Address Company Company Person Person Address Address Page 1 of I STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: ®Oil ❑Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended 1b. Well Class: 20AAC 25.105 20AAC 25.110 ®Development 0 Exploratory 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One 0 Service 0 Stratigraphic 2. Operator Name: 5.Date Comp.,Silp.,or Aband.: VrN 12. Permit to Drill Number: BP Exploration(Alaska) Inc. 6 /2012 /1)6 212-025 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 5/10/2012 50-029-20387-03-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 5/26/2012 PBU C-12C 555' FNL, 1221' FEL, Sec. 19,T11N, R14E, UM Top of Productive Horizon: 8. KB(ft above MSL): 62.94' 15. Field/Pool(s): 454'FSL,3788' FWL, Sec.20,T11N, R14E, UM GL(ft above MSL): 32.74' Prudhoe Bay/Prudhoe Bay Total Depth: 9. Plug Back Depth(MD+TVD): 113'FSL,216' FWL, Sec.21,T11N, R14E, UM 13586' 9025' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 664139 y- 5960659 Zone- ASP4 13628' 9017' ADL 028305&028306 TPI: x- 669255 y- 5956501 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 670971 y- 5956198 Zone- ASP4 None 18. Directional Surve y ®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 1900' (Approx.) 21.Logs Obtained (List all logs here and submit electronic andprinted informationper 20 AAC 25.071): 22. Re-Drill/Lateral TopWindow MD/TVD: MWD/GR, MWD/GR/RES,GR/CCL/MCNL 11476' 8683' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT CASING WT.PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20"x 30" Insulated Conductor Surface 110' Surface 110' 36" 12.9 cu yds Permafrost Concrete 13-3/8" 72# L-80 Surface, 2681' Surface 2662' 17-1/2" 4343 cu ft Arctic Set 9-5/8" 47# L-80 Surface 10957' Surface 8287' 12-1/4" 1673 cu ft Class'G', 130 cu ft Arctic Set 7" _ 29# L-80 10402' 11381' 7872' 8599' 8-1/2" 600 cu ft Class'G' 3-1/2"x 3-3/16" 9.2#/6.2# L-80 10344' 11476' 7826' 8683' 4-1/4" 129 cu ft Class'G' 2-3/8" 4.7# L-80 10275' 13624' 7772' 9018' 3" 61 sx Class'G' 24. Open to production or injection? ®Yes 0 No 25. TUBING RECORD If Yes, list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ND (MD+TVD of Top&Bottom;Perforation Size and Number): ) 1.56"Gun Diameter,6 spf 7",26#x 4-1/2", 12.6#, L-80 10438' 10298'/7790' MD TVD MD ND 12485'-12585' 9029'-9031' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 12745'-13295' 9040'-9032' 13figar 5'- 585' 9030'-9025' ���a��\/ED DEPTH INTERVAL(MD) AMOUNT Freeze Protect wNBbD Ks DieseIIND OF MATERIAL USED - JUL 19 2.012 1,,,,„ Q r-- 2 AOGGC PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): June 26,2012 Flowing Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 6/27/2012 6 Test Period ♦ 412 251 49 176 608 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 260 340 24-Hour Rate 4 1648 1002 196 N/A i 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No Sidewall Core(s)Acquired? 0 Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. None RBDMS JUL 2 0 2OS2 M Y I1y3Vv Form 10-407 Revised 12/2009 CONTINUED ON REVERSE ./f ,,,,/z..... Submit Original Onlyc 29. GEOLOGIC MARKERS(List all formations a' ,arkers encountered): 30. FORMATION TESTS NAME .D ND Well TesteL ,J Yes 0 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. CGL 11509' 8714' None Base of CGL 11592' 8788' 23SB/Zone 2B 11660' 8843' 22TS 11742' 8904' 21 TS/Zone 2A 11830' 8954' Sadlerochit/Zone 1B 12026' 9022' Formation at Total Depth (Name): Sadlerochit/Zone 1B 12026' 9022' 31.List of Attachments: Summary of Daily Drilling Reports,Summary of Post-Rig Work,Well Schematic Diagram,Surveys 32. I hereby certify that th o goin is rue n correct to the best of my knowledge. Signed: Joe Lastufk I) ` Title: Drilling Technologist Date:1/1 Q t�N— PBU C-12C 212-025 Prepared By Name/Number: Joe Lastufka, 564-4091 Well Number Permit No./Approval No. Drilling Engineer: Troy Jakabosky, 564-4868 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 12/2009 Submit Original Only TREE= 6-3/8'CIW WELLHEAD= FMC C-12 C SAFETY NOTES:WELL ANGLE>70°@ 11926'. ACTUATOR= BAKER C ORIG KB.ELEV 62.94' ORIG BF.ELEV 32.51' ORIG KOP= 2300' PJC DRAFT Max Angle= 100"@ 13591' I0 I 2004' -'7"ons SSSV NIP.ID=5.962" Daturn MD= 11685' Datum 1VD= 8800'SS 1 30'NSULATED CONDUCTOR -H -110 J 2564' —{95/8 DV PIG/ 13-3/8'CSG,72#,L-80 BUTT.ID= 12.347" -1 2681' / 10278' -1 r 20'GUBERSON PBR 10298' -19-5/8"x r GUBB2SON PKR,ID=3.833' 7"TBG,26#.L-80 IJ4S..0383 bpt,D=6.276" - 10278' 10275'SLMD --145 BKR KB LTP,D=2.39'(06/24/12) J 10308' -'3.70"DEPLOY SLV,D=3.00" Minimum ID = 1.920" @ 10337' 10317' -3.00"BTT GEN II DEPLOY SLV,ID=2.250 3-1/2" CENTRALIZER NO-GO _______— 10327' -2-3/8"PUP XD,ID= 1.995" '` 10345' -44-1/2"OTIS X NIP,ID=3.813" BEHIND (ELMO 10338q CT LNR 10844' -H3.70"DEPLOY SLV vil 4'PROFILE,ID=2.36' A 10376' H4-1/2"XN NM',MLLED TO 3.80'(OQXX/XX) 3-1/2'LNR,9.3#,L-80 STL,.0087 bpf,D=2.992" H 10395' 'II „ \- ,0`W2' -19 5/8-X r BOT LNR HGR D=??? 10395' —11/2'x 3-3/16")OJ,ID=2.80' BEHIND 4-1/2"TBG,12.6#,L-80 HYD,.0152 bpf,ID=3.958' - 10438' 1Q438• -4-1/2"MULESHOE,D=3.958" CT LNR 10433' HELMD TT LOGGED ON Xx(XX/XX 9-5/8"CSG,47#,L-80 BUTT,ID=3.958" -1 10957• —A , 7"LNR,29#,L-80 BUTT,.0371 bpf,D=6.184" — 11381' ' 3-3/16"MONOBORE WHIPSTOCK(05/16/12) — 11476' MILLOUT iMtDOW(C-128) 11381'-11389' 3-3/16"LNR,6.2#,L-80 TCS,.0076 bpf,D=2.80" —1 —11476 PERFORATION SUMMARY ✓ 2.74"MILLOUT WINDOW(C-12C)11476'-11482' REF LOG: MCNL ON 05/30/12 ANGLE AT TOP PERF: °@' Note:Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sgz DATE 1.56' 6 i 12485-12585 0 06/04/12 1.56" 6 ' 12745-13295 0 06/04/12 1.56" 6 13345-13585 0 06/04/12 PBTD --1 13586' 2-3/8"LNR,4.7#,L-80 STL,.0039 bpf,D= 1.995" -1 13624' )i 1 DATE REV BY COMMENTS DATE REV BY COMVENTS PRUDHOE BAY UNIT 12120/79 NI ES ORIGINAL COMPLETION 06/27/12 GJB/JMD SET KB LTP(06/24/12) WELL: C-12C 07/21/98 NORDIC 2 CTD SIDETRACK(C-12A) 07/17/12 JNJPJC WS/MILLOUT CORRECTON PERMIT No: 2120250 09/21/09 NORDIC2 CTD SIDETRACK(C-12B) AR No: 50-029-20387-03 06/02/12 NORDIC 1 CTD SIDETRACK(C-12C) SEC 19,T11N,R14E,555'FAL&1220'FEL 06/06/12 PJC DRLG HO CORRECTIONS 06/15/12 PJC DRLG DRAFT CORRECTIONS BP Exploration(Alaska) North America -ALASKA- BP Page 1 of 36 Operation Summary Report Common Wet Name: C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project: Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ (ft) 5/6/2012 00:00 - 02:15 2.25 MOB P PRE PJSM ON PICKING UP NEW REEL. PICK UP 'NEW REEL INTO PLACE. SECURE ON PINS. SECURE REEL HOUSE DOORS,ALL SECURITY CHAINS ON REEL. AAR ON PICKING UP REEL. WARM UP MOVING SYSTEM. GREASE CHOKE MANIFOLD,REEL HOUSE IRON. 02:15 - 03:30 1.25 ( MOB P PRE NORDIC SUPERINTENDENT ON LOCATION. INSPECT AROUND RIG IN PREPARATION FOR MOVE. HOLD PRE-RIG MOVE SAFETY MEETING WITH RIG CREW,NORDIC FIELD SUPT,TOOLPUSHER,AND WSL. DISCUSS ' OBSTACLES ON PAD, POSITION OF EQUIPMENT, PLANNED ROUTE, E-STOP FUNCTION,STOP SIGNALS,CLEAR& CONCISE RADIO COMMUNICATION,AND I SPOTTER POSITION. 03:30 - 05:00 1.50 MOB P , i l PRE PULL OFF C-02. MOVE RIG TO C-12. SPOT RIG IN FRONT OF C-12 WHILE RIG MATS AND CELLAR BOARDS ARE BROUGHT OVER. POSITION MATS. CONFIRMED TWC ' INSTALLED,ALL VALVES CLOSED,0 PSI ON TUBING AND ANNULUS. PULL OVER C-12. ACCEPT RIG AT 0500 HRS. 05:00 - 07:00 2.00 . MOB P PRE SPOT CUTTINGS BOX,TIGER TANK. POSITION EQUIPMENT. PREP FOR OPERATIONS. 07:00 - 09:00 2.00 MOB P PRE CONTINUE RU TEST GAS ALARMS 09:00 - 09:30 0.50 MOB P PRE PRESSURE TEST THE SWAB CAP AS PER ADWOP TO 3500 PSI BEFORE REMOVING THE TREE CAP 09:30 - 11:30 2.00 MOB P PRE SUSPEND OPERATIONS, CREWS ARE 1 1 RIGGING UP TO TIE IN C-02A OUR LAST WELL AND THEY NEED THE HANDOVER FROM US BEFORE THEY CAN START WORK. 11:30 - 12:20 0.83 MOB P . PRE REMOVE TREE CAP AND NU BOPE 12:20 - 14:00 1.67 MOB P PRE NOTIFY STATE INSPECTOR AS REQUESTED FOR 2 HOUR NOTICE FOR START OF BOP TEST INSPECTOR WAIVED WITNESS BUT ' STATED HE MAY DROP BY IF HE CAN COMPLETE OTHER TESTING. 14:00 - 14:45 0.75 MOB P PRE BOPE RU,INSTALL TUB IN RIG FLOORAND MU LUBRICATOR 14:45 - 15:00 0.25 MOB P PRE HOLD PJSM TO DISABLE THE CHECK VALVE IN THE KILL LINE AND FUNCTION TEST THE BOPE FROM THE OPS CAB 15:00 - 16:45 1.75 BOPSUR P PROD1 FUNCTION TEST BOPE FROM THE OPS CAB THEN USE THE RIG FLOOR CONTROL PANEL 1 FOR THE TEST 16:45 - 17:45 1.00 BOPSUR P PROD1 SHELL TEST Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 2 of 36 Operation Summary Report Common Well Name: C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) I Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:00:O0AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:45 - 18:05 0.33 BOPSUR P PROD1 ***RIG EVACUATION DRILL"" GOOD DRILL ALL RIG PERSONNEL AND TRUCK DRIVERS REPORTED TO THE MUSTER AREA IN--4 MIN.ALARMS WERE LOUD ENOUGH FOR EVERYONE ON LOCATION TO HEAR THEM AND NO DEFICIENCIES TO REPORT 18:05 - 00:00 5.92 BOPSUR P PROD1 TESTING BOPE TO 250 PSI LOW,3500 PSI HIGH. TEST WITNESSED BY TP DAVE HYLER AND WSL ROB O'NEAL. 5/7/2012 00:00 - 01:00 1.00 BOPSUR P PROD1 TEST BOP. TEST FLOOR SAFETY VALVE AND 2-3/8"SAFETY JOINT. TEST WITNESSED BY TP DAVE HYLER AND WSL ROB O'NEAL. 01:00 - 01:30 0.50 BOPSUR P PROD1 CLEAR AND CLEAN RIG FLOOR OF TEST 'EQUIPMENT. PREPARE TO PULL COIL ACROSS. 01:30 - 03:30 2.00 BOPSUR P PROD1 PULL COIL ACROSS. STAB THROUGH INJECTOR. 03:30 - 03:45 0.25 BOPSUR • P ; PROD1 CONDUCT RIG EVACUATION DRILL. CREW RESPONSE TIME FOR ASSEMBLING TO MUSTER AREA 1 MIN 44 SEC. NOTIFY PAD OPERATOR,CONDUCT AAR DISCUSSING CONTACTS AND FURTHER ACTIONS. 03:45 - 06:00 2.25 BOPSUR P PROD1 STAB ON WITH INJECTOR. CHANGE OUT BRASS IN STUFFING BOX. POP OFF TO INSPECT BOOT ON E-LINE; RE-BOOT E-LINE. STAB BACK ON AND FILL COIL. LOOK FOR ANY LEAKS ON INNER REEL IRON,NO LEAKS. COMPLETE FILLING COIL. PT QUICK TEST SUB. 06:00 - 06:30 0.50 BOPSUR P PROD1 CREW CHANGE 06:30 - 06:55 0.42 BOPSUR P PROD1 PJSM TO PT NEW HARDLINE,PUMP SLACK AND TEST THE INNER REEL VALVE AND PACK-OFFS 06:55 - 07:30 0.58 ' BOPSUR P PROD1 PT REEL HARDLINE,GOOD TEST PT INNER REEL VALVE AND PACK OFFS TO 250 LOW AND 3500 HIGH(CHARTED TEST) GOOD LOW AND HIGH TESTS - -- - --------------- 07:30 - 08:00 0.50 BOPSUR P PROD1 PUMP SLACK INTO REEL 08:00 - 08:15 0.25 BOPSUR P PROD1 PU INJECTOR AND MU THE CT CUTTER 08:15 - 09:00 0.75 BOPSUR P PROD1 CUT 315'WHICH IS 2%SLACK AND NO WIRE, MU CTC AND NOZZLE TO PUMP SLACK FORWARD 09:00 - 09:45 0.75 BOPSUR P PROD1 NOZZLE MADE UP,PUMP SLACK FORWARD 09:45 - 10:00 0.25 BOPSUR P PROD1 BLOW COIL BACK WITH AIR AND PU TO CHECK FOR WIRE• 10:00 - 12:00 2.00 BOPSUR P PROD1 WE HAVE WIRE MEG TEST WIRE,GOOD TEST MAKE UP BTT CTC AND PULL TEST CTC TO 30K,GOOD TEST MAKE UP BHI UQC,TEST UQC ELINE CONNECTION,GOOD TEST MU TEST PLATE TO PT BHI UQC CHECK VALVES,GOOD TEST 12:00 - 12:40 0.67 BOPSUR P PROD1 STAB ON AND PUMP SLACK FORWARD - Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 3 of 36 Operation Summary Report Common Well Name: C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:40 - 13:10 0.50 BOPSUR P PROD1 SLACK PUMPED FORWARD,REMOVE INJECTOR FROM THE WELL AND PREP FLOOR FOR VALVE CREW TO PULL TWC 13:10 - 13:30 0.33 BOPSUR P PROD1 PJSM FOR BRINGING VALVE CREW EQUIPMENT ON THE RIG AND PULLING THE TWC 13:30 - 13:45 0.25 BOPSUR P PROD1 LOAD EQUIPMENT ON RIG TO PULL TWC 13:45 - 15:10 1.42 BOPSUR P PROD1 CPAI AUDITORS ARE ON LOCATION AND WOULD LIKE TO DO A WALK THROUGH ON THE RIG.SUSPEND OPERATIONS FOR AUDIT 15:10 - 15:30 0.33 BOPSUR P PROD1 HOLD PJSM WITH NEW NORDIC CREW SWITCHING TO DAYS AND THE VALVE CREW TO PULL THE TWC 16:35 17.00 0.42 BOPSUR P PROD1 LOAD VALVE CREW EQUIPMENT ON THE RIG 15:30 16:35 1.08 BOPSUR P PROD1 PT LUBRICATOR 17:00 - 17:25 0.42 BOPSUR P PROD1 GOOD PT,OPEN SSV AND MASTER TO A CLOSED CHOKE,NO PRESSURE ABOVE TWC 17:25 - 18:00 0.58 BOPSUR P PROD1 EQUALIZED THE TWC AND WE HAVE A LITTLE PRESSURE UNDER THE VALVE 20 PSI CLOSE MASTER AND PT 18:00 - 18:30 0.50 BOPSUR N SFAL PROD1 WHILE PRESSURE TESTING THE MASTER VALVE,THE HYDRAULIC LINE ON THE VALVE LUBRICATOR PARTED. NOT SURE WHY IT HAPPENED BECAUSE WE HAD JUST PERFORMED THE SAME TEST EARLIER. VERY LITTLE HYDRAULIC FLUID IN LINE LEAKED OUT ON SIDE OF LUBRICATOR. COVER WITH ABSORB AND CONTACT LEADERSHIP. WELLS GROUP ENGINEER WANTED CONFIRMATION THAT ROD WAS FULLY STROKED. CONFIRMATION GIVEN, PERMISSION GIVEN TO CONTINUE WITH OPS. 18:30 - 21:00 2.50 BOPSUR N SFAL PROD1 IN ATTEMPT TO CLOSE SSV,CANNOT FULLY CYCLE IT CLOSED. MAKE SEVERAL ATTEMPTS. CONTACT WELLS GROUP ENGINEER AND FIELD SUPERINTENDENT. BARRIERS IN PLACE ARE CAST IRON BRIDGE PLUG(CIBP)AND TESTED MASTER VALVE. CONDUCT LEAK TIGHT/FLOW TEST TO ENSURE MASTER VALVE GOOD BY OPENING UP THROUGH CHOKE: NO FLOW AND NO PRESSURE. MAKE SEVERAL ATTEMPTS TO CYCLE SSV, CANNOT FULLY CLOSE. CALL SUPERINTENDENT AND WELLS GROUP ENGINEER. DECISION IS TO PULL LUBRICATOR. PULL LUBRICATOR, PIN TO ROD EXTENSION HAS SHEARED, LEAVING EXTENSION RODS AND TWC IN HOLE ON TOP OF MASTER. FISHING NECK LOOKING UP AT-6'BELOW RIG FLOOR. 21:00 - 21:30 0.50 BOPSUR N SFAL PROD1 MAKE NOTIFICATIONS TO WELLS GROUP,BP SUPERINTENDENT AND NORDIC SUPERINTENDENT. DEVELOP PLAN FORWARD TO PULL ASSEMBLY. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 4 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°4014.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:30 - 22:45 1.25 BOPSUR N SFAL PROD1 LOOP SLING AROUND FISHING NECK, PULL TO SURFACE WITH TUGGER. LOOP SECOND SLING AROUND EXTENSION ROD. PULL TO RIG FLOOR. BREAK DOWN EXTENSION ASSEMBLY. INSPECT TWC AND EXTENSION RODS, NO DAMAGE. –3"OF RUBBER SEAL MISSING ON TWC. 5/8"METAL PIN FOR EXTENSION ROD CONNECTIONS SHEARED ON BOTH SIDES. PJSM ON LAYING DOWN LUBRICATOR AND TWC. MOBILIZE OFF OF RIG. SEND BAKER HAND BACK TO SHOP FOR MAGNET. 22:45 - 23:30 0.75 BOPSUR N SFAL PROD1 SUCK STACK DRY TO INSPECT MASTER, SWAB, LOOK FOR DEBRIS ON TOP OF VALVES. SOME NOTICEABLE DEBRIS ON MASTER. FUNCTION SSV, FULL FUNCTION TO CLOSE AND OPENED POSITION. NO — -- — --- VISUAL DAMAGE. 23:30 - 00:00 0.50 BOPSUR N SFAL PROD1 WAIT ON MAGNET 5/8/2012 00:00 - 01:30 1.50 BOPSUR : N SFAL PROD1 FISH FOR METAL DEBRIS WITH MAGNET. FOUND ONE PIECE APPROXIMATELY 3/8"IN LENGTH. CONFIRMED WITH VALVE SHOP THAT THERE ARE SUPPOSED TO BE TWO SHEARS. USE MAGNET ON THREE MORE 4 RUNS WITH NO DEBRIS RETRIEVED. I 01:30 - 02:30 1.00 BOPSUR ' N SFAL PROD1 MU NOZZLE ASSEMBLY AND JET STACK FROM MASTER UP TO TOP AT 3.6 BPM. MAGNETS ARE IN FLOW RETURN DITCH AND SCREEN ON OUTLET. KILL LINE SHUT IN. MAKE TWO MORE PASSES TO MASTER VALVE AND BACK UP. INSPECT FLOW RETURN LINE; PLENTY OF IRON SHAVINGS AND THE 3"PIECE OF SEAL RUBBER FROM TWC RETRIEVED. MAKE ONE MORE PASS AT .5 BPM DOWN AND 3.5 BPM COMING UP. MAKE ONE LAST PASS AT.25 BPM DOWN AND WITH NO PUMPS COMING UP. NO DEBRIS IN FLOW RETURN,ON MAGNETS,OR IN BASKET STRAINER. POP OFF WITH INJECTOR. 02:30 - 03:00 0.50 BOPSUR N SFAL PROD1 RUN BACK IN HOLE WITH MAGNET ASSEMBLY TWO TIMES. NO DEBRIS ON MAGNET. LD BHA. 03:00 - 03:45 0.75 1 BOPSUR N ; SFAL ! PROD1 CLEAR AND CLEAN RIG FLOOR. CONSULT WITH FIELD SUPERINTENDENT AND TOWN ON PLAN FORWARD. DECIDE TO PROCEED WITH RUNNING WHIPSTOCK. 03:45 - 05:00 1.25 BOPSUR N SFAL PROD1 INSTALL NIGHT CAP. FILL TREE WITH METHANOL. PT AGAINST MASTER AND THEN SWAB TO 250 PSI LOW AND 3500 PSI HIGH. OPEN TO WELL, NO PRESSURE ON WELL. PUMP ACROSS TOP, FULL RETURNS IMMEDIATELY. PUMP ACROSS TOP WITH NO LOSSES. 05:00 - 05:45 0.75 EVAL N SFAL PROD1 PULL NIGHTCAP. MOVE INJECTOR OVER WELL. MU NOZZLE ASSEMBLY TO COIL CONNECTOR FOR DEDICATED RIH TO JET WELLBORE AND DISPLACE FREEZE PROTECT. STAB ON, PRESSURE TEST QTS. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 5 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070017'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:45 - 06:25 0.67 EVAL N SFAL PROD1 RIH TAKING ALL RETURNS TO THE TIGER TANK HOLDING 100-200 PSI BACK PRESSURE WHILE PUMPING CLEAN KCL AT 1.6 BPM 06:25 - 07:30 1.08 EVAL N SFAL PROD1 GETTING GAS BACK, NOTIFY PAD OP&BP RADIO TO RESTRICT ACCESS TO THE PAD. WHILE TAKING ALL RETURNS TO THE TIGER TANK,WE NEED TO STRAP THE TANK EVERY 1000'AND TO DO THIS WE WILL NEED TO SHUT THE WELL IN SO THE RIG HAND CAN GO UP ON THE TANK AND STRAP IT. 07:30 - 07:40 0.17 EVAL N SFAL PROD1 SLOW DOWN RIH SPEED,WHP IS UP TO 900 PSI AND WE ARE MAXED OUT ON DOWNSTREAM CHOKE PRESSURE AT 150 PSI 07:40 - 07:55 0.25 EVAL N SFAL PROD1 WHP HAS INCREASED TO 1500 PSI. 07:55 - 09:30 1.58 EVAL I N SFAL PROD1 WHP 1600 PSI,STOP RIH TO BLEED OFF WHP WHP DOWN TO 100 PSI WITH THE AND FALLING,CONTINUE RIH TAKING RETURNS TO THE TIGER TANK 09:30 - 10:35 1.08 EVAL N SFAL • PROD1 VERY LIGHT TAG AT THE CI BP.PUH TO THE TOL, INCREASE RATE TO DISPLACE THE WELL WITH—120 BBLS OF 1%KCL FOLLOWED BY MUD 10:35 - 11:55 1.33 EVAL N SFAL PROD1 TIGER TANK HAS OVER 400 BBLS AND WE NEED TO SUCK IT OUT.CLOSE IN THE CHOKE AND BACK THE VAC TRUCK IN TO SUCK OUT THE TT. BACK IN A MUD TRUCK AND TOP OFF THE PITS 11:55 - 12:20 0.42 EVAL N SFAL PROD1 VAC TRUCK IS FULL AND MOVED OUT OF THE WAY,CONTINUE DISPLACING WELL TO MUD 'TANK STRAP AT 130 BBLS 12:20 - 13:10 0.83 EVAL N I SFAL PROD1 IIA&OA PRESSURES CLIMBING,BLEED OFF 'TO 200 PSI STOP AT 10000',CLOSE THE CHOKE GET A STRAP ON THE TT AND MAKE SURE THINGS ARE GOING OUR WAY BEFORE POOH 13:10 - 14:40 1.50 EVAL N SFAL PROD1 WHP STARTING TO DROP ATA GOOD RATE AND RETURNS ARE SLUGGING A LITTLE MORE LIKE WERE GETTING FLUID PACKED, START POOH AND BLEED IA&OA AGAIN 900 PSI/580 PSI 14:40 - 16:00 1.33 EVAL N SFAL PROD1 POH WITH NOZZLE BHA. TAKE 8.6-PPG MUD RETURNS BACK TO PITS AT 4000'. FLOW CHECK WELL AT 100'-NO FLOW. 16:00 - 16:30 0.50 EVAL N SFAL PROD1 HOLD PJSM ON LD NOZZLE BHA. DISCUSS POSITIONS OF PEOPLE AND WELL CONTROL CONSIDERATIONS WITH REGARD TO BHA HANDLING. UNSTAB INJECTOR&LD NOZZLE. 16:30 - 17:00 0.50 STWHIP P PROD1 PU WHIPSTOCK&MU WHIPSTOCK RUNNING BHA. MU BHA TO COIL&STAB ON WELL. BHA CONSISTS OF: 3-3/16"MONOBORE WHIPSTOCK,ADAPTER KIT, SETTING TOOL, XO, HOT, DGS, DPS, EDC, P&C,WEAR SUB, LQC, UQC,AND CTC. OAL=66.48' Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 6 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3011 K1-C(2,117,744.00) Project: Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 ' Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°1755.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date ! From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 17:15 0.25 STWHIP P PROD1 TEST QTS TO 250-PSI/3500-PSI. HOLD EACH TEST FOR 5-MINUTES. OPEN EDC&BREAK CIRCULATION AT.3-BPM /860-PSI. IA/OA=370-PSI/340-PSI. 17:15 - 20:30 3.25 ' STWHIP P PROD1 RIH WITH WHIPSTOCK SETTING BHA TO 11,300'FOR TIE-IN. '20:30 - 21:30 1.00 STWHIP P PROD1 LOGTIE-INWITH-6.5'CORRECTION. CONTINUE LOGGING DOWN WITH CCL TO 11,668'. PU TO 11,600'AND CORRELATE LOG TO PDC LOG. PDC AND CCL LOGS ARE.5' OFF. PUW 41K. 21:30 - 22:00 0.50 STWHIP P PROD1 RUN BACK DOWN TO SETTING DEPTH OF 11,625';BOTTOM OF WHIPSTOCK AT 11,633.7'. PU TO NEUTRAL WEIGHT,ORIENT 'TO225°ROHS, COME ON WITH PUMPS TO SHEAR SETTING TOOL AT 4100 PSI TO SET WHIPSTOCK. SET DOWN 6K,PICK BACK UP TO VERIFY SETTING. TOP OF WHIPSTOCK _ AT 11,625'. 22:00 - 00:00 2.00 STWHIP P ' PROD1 PJSM ON LAYING DOWN BHA WHILE PULLING OUT OF HOLE. 5/9/2012 00:00 - 00:30 . 0.50 STWHIP P PROD1 FLOW CHECK WELL AT SURFACE. NO FLOW. PULL TO SURFACE. 00:30 - 01:30 1.00 STMILL P PROD1 LD WHIPSTOCK SETTING BHA. ROD IS ATTACHED,ALL LOOKS GOOD. MU MILLING BHA. MILLS GAUGE AT 2.74"GO,2.73" NO-GO. -2.74"WINDOW MILL, DIAMOND STRING MILL, XTREME 2-1/16TH MOTOR,XO,2 JTS CSH, XO, BLIND SUB, DGS, DPS, EDC, P&C,WEAR SUB, LQC, UQC, CTC -PRESSURE TEST QUICK TEST SUB 01:30 - 04:30 3.00 STMILL P PROD1 RIH WITH MILLING ASSEMBLY. CONDUCT TIE-IN WITH-5'CORRECTION. 04:30 - 04:35 0.08 STMILL P t PROD1 PICK BACK UP TO LOG CCL FOR JEWELRY PLACEMENT FROM 10,200-10,400'. DURING TRIP UP,TOP ROLLER ON INJECTOR MAKING _ ALOT OF NOISE. 04:35 - 06:00 1.42 EVAL P PROD1 TROUBLESHOOT ROLLERS ON INJECTOR. SLB CREW CANNOT DETERMINE WHAT IS WRONG. CALL TO SLB MAINTENANCE ' SUPERVISOR. WAS TOLD TO NOT OPERATE ANY FURTHER. MECHANIC ON LOCATION. INSPECTS INJECTOR,INCREASES CHAIN TENSIONER. SEEMS THAT NO ISSUES ARE APPARENT. 06:00 - 06:15 0.25 EVAL P PROD1 LOG CCL FROM 10,200'TO 10,400'. 06:15 - 07:00 0.75 STMILL P PROD1 RIH WITH MILLING ASSEMBLY TO 11,625'. DOWN ON PUMPS AND DRY TAG WHIPSTOCK TOP LIGHTLY AT 11,625'. PICK UP 10',PUW 42K. OBTAIN SLOW PUMP RATES. ONE FOR ONE RETURNS,8.70 PPG MUD WEIGHT. Printed 6/18/2012 10:53:34AM North America-ALASKA- BP Page 7 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date!Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:00 - 13:30 6.50 STMILL P PROD1 SET BACK DOWN AND TAG WITH PUMPS ON AT 10,624'. PU,BACK DOWN AND BEGIN TIME MILLING. FREE SPIN 2420 PSI AT 1.55 BPM. -TIME MILLING WITH.56K WOB,2490 PSI -BEGIN MILLLING USING WOB AND DIFFERENTIAL PRESSURE; INITIAL WOB 1.27K,2620 PSI AT 11,624'. -WOB 1.70K,2550 PSI AT 1.55 BPM AT 11,625' -WOB 1.48K,2500 PSI AT 1.55 BPM AT 11,626' -WOB 1.63K,2555 PSI AT 1.55 BPM AT 11,627' -AT MIDWAY POINT OF EXIT,BACK TO TIME MILLING. EXIT WINDOW, REAM THROUGH WITH STRING MILL TO CLEAN IT UP. 13:30 - 19:00 5.50 STMILL P PROD1 MILL 10'OF NEW FORMATION. BACKREAM WINDOW. CONDUCT DRY PASS,WINDOW GOOD. NO ISSUES OBSERVED. 19:00 - 19:30 0.50 STMILL P PROD1 PULL INTO WINDOW. FLOW CHECK WELL. OPEN EDC, BEGIN PULLING UP HOLE INSIDE LINER. 19:30 - 23:00 3.50 STMILL P PROD1 PULL ABOVE DEPLOYMENT SLEEVE. BLOW DOWN MICROMOTION;PACKED OFF WITH METAL SHAVINGS. CONTINUE TO POH AT SLOW RATE TO KEEP CUTTINGS ABOVE EDC. PJSM ON LAYING DOWN BHA. FLOW CHECK AT SURFACE,ALL GOOD. PULL TO TAG AT SURFACE. 23:00 - 00:00 1.00 STMILL P PROD1 POP OFF WITH INJECTOR,LD BHA. GAUGE MILLS:DIAMOND MILL UNDER GAUGE 2.71" NO-GO,2.72"GO. STRING MILL UNDER GAUGE AT 2.72"NO-GO,2.73"GO. 5/10/2012 00:00 - 00:30 0.50 STMILL P PROD1 MOBILIZE MILLING BHA OFF OF RIG FLOOR. CLEAR AND CLEAN RIG FLOOR. 00:30 - 01:00 0.50 DRILL P PROD1 MU NOZZLE ASSEMBLY. JET STACK TO CLEAN IT OF ANY METAL SHAVINGS. 01:00 - 02:00 1.00 DRILL P PROD1 CONDUCT PLANNED MAINTENANCE ON SHAKER,CLEAN HIGH PRESSURE FILTERS, CHANGE OIL IN ENGINE, INSPECT COUNTER AND SPROCKET ON INJECTOR. 02:00 - 03:00 1.00 DRILL P PROD1 PJSM ON MAKING UP BUILD BHA. MU BUILD BHA: 2.70"X3.0"BI-CENTER BIT(HYC- SRR3408M-B7-Z),2-3/8"EXTREME MOTOR WITH 2.06 AKO, HOT, DGS,DPS, EDC,P&C, WEAR SUB, LQC,UQC,CTC 03:00 - 05:15 2.25 DRILL P PROD1 RIH WITH BUILD BHA ASSEMBLY. 05:15 - 07:15 2.00 EVAL P PROD1 CONDUCT LONG TIE IN FOR GEOLOGIST PDC CORRELATION FROM 11250'TO 11638',RA TAG @ 11630' CORRECTION=-8' 07:15 - 15:45 8.50 DRILL P PROD1 START DRILLING FROM 11638'-1.75 IN ,1.78 OUT,2640 PSI,.7K WOB,ROP=29 FPH FIRST CUTTINGS TO SURFACE SHOW 20% CHERT-BIT WILL NOT TAKE WEIGHT BEYOND 800#WITHOUT STALLING-ROP ERRATIC AND SLOWING TO 3-6 FPH Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 8 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 I End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:OOAM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:45 - 16:15 0.50 DRILL P PROD1 OBTAIN SLOW PUMP RATES @ 11700' PUMP#1 1.75 BPM 2490 PSI 83 SPM 1.0 1720 49 0.5 1275 22 PUMP#2 1.75 2480 82 1.0 1630 43 0.5 1275 21 16:15 - 20:30 4.25 DRILL P I PROD1 ROP NOT IMPROVING-FLOW CHECK WELL/ OK-POOH W/BHA#4 FROM 11700'TO INSPECT FOR DAMAGE-OPEN EDC ABOVE WINDOW TO ASSIST JETTING CUTTING TO SURFACE-3.3 BPM X 3010 PSI-IA 620#, OA 650#,CUTTING SAMPLE WILL BE TO SURFACE @ 18:00 HRS -SAMPLES REVEAL 70%CHERT -FLOW CHECK WELL AT SURFACE. PJSM ON LAYING DOWN BHA. PULL TO SURFACE, POP OFF. 20:30 - 21:30 1.00 DRILL P PROD1 LD BHA. CHIPPED TEETH BUT BIT IN OTHERWISE GOOD CONDITION. BIT GRADE 5-1-BT-N-X-I-WT-PR. (PIC'S ATTACHED) CHANGE OUT MOTOR AND BIT. MU BHA#5: 2.70"X3.0"BI-CENTER BIT(HYC- SRF3408M-B7),2-3/8"EXTREME MOTOR WITH 2.40 AKO, HOT, DGS,DPS, EDC, P&C,WEAR SUB, LQC, UQC, CTC. PRESSURE TEST QUICK TEST SUB. 21:30 - 00:00 2.50 DRILL P PROD1 RIH WITH NEW BUILD ASSEMBLY 5/11/2012 00:00 - 00:45 0.75 DRILL P PROD1 LOG FOR GEOLOGISTS FROM 11,170'-11,250'. 00:45 - 01:30 0.75 DRILL P PROD1 RIH TO 11,630'FOR TIE-IN WITH-6.5' CORRECTION. CONTINUE TO RIH. GET SLOW PUMP RATES. 01:30 - 02:30 1.00 DRILL P PROD1 'ON BOTTOM DRILLING @ 11700'-FS=2560 @ 1.75-IN 1.78, OUT 1.8 @ 2710#,WOB.46, INITIAL ROP=18 FPH 02:30 - 04:00 1.50 DRILL P PROD1 DRILLING @ 11718',1.78 IN-1.80 OUT @ 2820#, ROP= 18-23 FPH-FIRST SURVEY SHOWING 41 DEGREE DL W/NEW MOTOR BEND. MOTOR STALLED @ 11747'WHEN INCREASED WOB TO 1000#-PU AND RESTART W/.7K-ROP= 15 FPH 04:00 - 05:45 1.75 DRILL P PROD1 DRILLING AHEAD TO 11763'PARAMETERS 1.75 IN-1.77 OUT @ 2730#,WOB=1.5K, ROP= 18 FPH 05:45 - 06:00 0.25 DRILL P PROD1 MOTOR WORK INCREASED TO 200#-ROP UP TO 40 FPH,1.75 IN-1.77 OUT @ 2860#,1000# WOB IA 650#,OA 530# 06:00 - 06:30 0.50 DRILL P PROD1 BHA WIPER TRIP. OBTAIN SLOW PUMP RATES. NO ISSUES ON WIPER. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 9 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 10:30 4.00 DRILL P PROD1 BACK ON BOTTOM. FREE SPIN OF 2675 PSI AT 1.75 BPM. -CONSECUTIVE STALLS ON TAGGING BOTTOM,ATTRIBUTE IT TO STICK SLIP AT THIS TIME. BEGIN ADDING LUBE TO INCREASE CONCENTRATION BY 1/2% -LUBES HELPED TO GET TO BOTTOM AND BEGIN DRILLING -1.75 BPM IN AND OUT,.77-2.1K WOB, 2715-2825 PSI, ECD 10.35 PPG -MW IN AND OUT 8.67 PPG DOG LEG SEVERITY 28 TO 41 PER 100';ONE ANOMOLY AT 45/100' 10:30 - 11:15 0.75 DRILL P PROD1 WIPER TRIP TO WINDOW. TROUBLE ON PULLING UP HOLE AND THEN GOING BACK DOWN PAST 11,785'. 11:15 - 13:00 1.75 DRILL P PROD1 DRILL DIRECTIONALLY FROM 11,850'. FREE SPIN 2600 PSI AT 1.75 BPM. - 1.78 BPM,2820 PSI,1.22-1.41K WOB,ECD 10.36 PPG 13:00 - 13:15 0.25 DRILL P PROD1 WIPER TRIP WHILE CONSULTING WITH GEOLOGIST ON DOG LEG SEVERITY AND LANDING TARGET. OVERPULL AT 11,785' AGAIN. NO ISSUES MOVING DOWN PAST IT THIS TIME. 13:15 - 15:30 2.25 DRILL P PROD1 DRILL AHEAD DIRECTIONALLY FROM 11,910'. FREE SPIN 2690 PSI AT 1.79 BPM. -1.78-1.80 BPM,2800-2985 PSI,1.15-1.73K WOB, ECD 10.42 PPG, MW IN 8.66PPG,MW OUT 8.70 PPG -LESS THAN A BBL PER HOUR LOSSES WHILE DRILLING AHEAD 15:30 - 19:00 3.50 DRILL P PROD1 WIPER UP TO WINDOW WITH NO ISSUES • PASSING BY 11,785'. PULL INTO WINDOW, OPEN EDC. COME ON WITH PUMPS AND PUMP AT 3.4 BPM UP THROUGH LINER. 19:00 - 19:25 0.42 DRILL P PROD1 CLOSE EDC AND CIRCULATE ABOVE WINDOW FOR DD CHANGEOUT 19:25 - 19:45 0.33 DRILL P PROD1 RIH AND CONFIRM TD @ 12005-GET SLOW PUMP RATES PUMP#1 1.75 BPM 2550 PSI 83 SPM PUMP#2 1.75 BPM 2700 PSI 84 SPM 1.0 1825 49 1.0 1880 49 0.5 1385 23 0.5 1560 26 19:45 - 21:55 2.17 DRILL P PROD1 BACK ON BOTTOM DRILLING @ 12005',1.76 BPM,2585 FS PVT 303, IA 775#,OA 822# 21:55 - 22:50 0.92 DRILL P PROD1 WIPER TO WINDOW FROM 12150',TIE IN LOG @ 11630'-GEO SAYS OUT OF TAR AT 12150' 22:50 - 00:00 1.17 DRILL P PROD1 ON BOTTOM AND DRILL AHEAD FROM 12150', ,1.72 BPM,2650 FS,PVT 301,IA 752#,OA 746# - DRILL TO 12180'MD/8969'TVD,TOTAL DAILY FOOTAGE=479' 5/12/2012 00:00 - 01:50 1.83 DRILL P PROD1 DRILL AND LAND BUILD SECTION @ 12299' i 01:50 - 02:30 0.67 DRILL P , PROD1 POOH TO JUST ABOVE WINDOW @ 11620'- FLOW CHECK WELL-OK-OPEN EDC AND WASH TRAY AT 2.75 BPM Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 10 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070"17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations _ (hr) (ft) 02:30 - 06:00 3.50 DRILL P PROD1 POOH AT 60 FPM X 3.2 BPM @ 3300 PSI TO KEEP CUTTINGS MOVING UP - JOG FROM 200'TO 500'AT 100 FPM X 3.4 BPM - TAG AT SURFACE AND FLOW CHECK WELL/OK 06:00 - 07:15 1.25 DRILL P PROD1 CREW CHANGE OUT. PJSM ON LD OF BHA. LD BHA,BIT GRADE 07:15 - 07:45 0.50 EVAL P PROD1 FUNCTION TEST BOP. FUNCTION ALL RAMS AND BAG FROM COIL OPERATOR REMOTE CONSOLE. 07:45 - 08:45 1.00 DRILL P PROD1 PJSM ON MU OF BHA. MU LATERAL ASSEMBLY:2.70"X3.0"BIT,2-3/8"XTREME MOTOR WITH 1.2°BEND,HOT,USR, DGS, DPS,EDC,P&C,WEAR SUB,LQC,UQC,CTC. PRESSURE TEST QUICK TEST SUB. 08:45 - 11:30 2.75 DRILL P PROD1 RIH WITH LATERAL ASSEMBLY. TIE-IN AT 11,320'WITH-10 CORRECTION. 11:30 - 13:00 1.50 EVAL P PROD1 MAD PASS AT 600'/HR FROM 11,600'TO 12,300'. BEGIN DISPLACEMENT TO NEW 8.5 PPG POWERVIS MUD. 13:00 - 15:30 2.50 DRILL P PROD1 DRILL AHEAD FROM 12,300'. FREE SPIN OF 2300 PSI AT 1.75 BPM. -1.75-1.88 BPM,2580-2800 PSI,.9-2.2 K WOB, ECD 10.0 PPG,MW IN AND OUT 8.5 PPG 15:30 - 16:15 0.75 DRILL P - PROD1 WIPER TRIP TO WINDOW. MUD SYSTEM FULLY SWAPPED OVER TO 8.5 PPG POWERVIS. PRESSURES HAVE DROPPED. 16:15 - 17:30 1.25 DRILL P PROD1 DRILL AHEAD FROM 12,450'. FREE SPIN 2140 PSI AT 1.75 BPM. -1.75 BPM,2380 PSI,1.46-1.80 K WOB -DRILLING AT 100 FPH -PUW INCREASED FROM 45K TO 52K ON INITIAL PICK UP FOR WIPER 17:30 - 17:45 0.25 DRILL P PROD1 BHA WIPER. USUALLY RUNNING AT 40K ON TRIP UP,RUNNING AT 45K ON THIS WIPER. VERY LITTLE CUTTINGS ACROSS SHAKER. GET CREW TO MIX UP A 30 BBL HI-VIS PILL FOR EVENTUAL WIPER INTO WINDOW. 17:45 - 18:00 0.25 DRILL P 1PROD1 DRILL AHEAD FROM 12,570'. FREE SPIN 2140 PSI AT 1.75 BPM. 18:00 - 18:50 0.83 DRILL P PROD1 WIPER TO WINDOW FROM 12600'-MIX HI-VIS SWEEP-OPEN EDC @ 11600' 18:50 - 18:55 0.08 DRILL P PROD1 5 MINUTE FLOW CHECK=OK 18:55 - 19:55 1.00 DRILL P PROD1 JET WS TRAY &7"CASING @ 3.35 BPM X 3260 PSI 19:55 - 20:15 0.33 DRILL P PROD1 PUMP 30 BBL HI-VIS PILL FOR HOLE CLEANING WHILE TIH TO 10350'@ 70 FPM X _ _ l 3.4 BPM '20:15 - 22:15 2.00 DRILL P PROD1 PILL OUT THE BOTTOM OF COIL AND POOH TO 3000'@ 3.4 BPM 22:15 - 00:00 1.75 DRILL P PROD1 HEAD BACK TO BOTTOM FROM 3000'AT 100 FPM X 3.4 BPM -DID NOT SEE ANY INCREASE IN CUTTINGS WHEN PILL GOT TO SURFACE 5/13/2012 00:00 - 00:10 0.17 DRILL P PROD1 CONTINUE TO RIH FROM WIPER TRIP- CLOSE EDC @ 11500' Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 11 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3 011K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (ft) 00:10 - 00:45 0.58 DRILL P PROD1 TIE IN @ 11635'=+10' - GET SLOW PUMP RATES PUMP#1 1.75 BPM 2340 PSI 82 SPM PUMP#2 1.75 BPM 2310 PSI 80 SPM 1.0 1432 47 1.0 1425 44 0.5 1041 24 0.5 1033 23 00:45 - 03:00 2.25 DRILL P PROD1 BACK ON BOTTOM DRILLING AT 12,603'-1.58 IN,1.63 OUT, @ 2355 PSI, PVT 302 BBLS, IA 696#, OA 730#-DRILL TO 12750 @ 115 FPH 03:00 - 03:45 0.75 DRILL P PROD1 WIPER TRIP FROM 12750'-PVT298,IA 697, OA 721,WH 11 03:45 - 04:10 0.42 DRILL P PROD1 BACK TO BOTTOM FROM 11650' 04:10 - 06:40 2.50 DRILL P PROD1 DRILLING AHEAD @ 12750'1.7BPM @ 2300 PSI,PVT 302,ROP=130 FPH -TROUBLE GETTING BY SHALE AT 12750'- HAD TO RIH @ 70 FPM TO GET THROUGH 06:40 - 11:15 4.58 DRILL P PROD1 WIPER TRIP TO WINDOW WENT WELL WITH NO ISSUES. ECD HAD DROPPED ON TRIP UP TO 9.75;HOLE SEEMS TO BE PRETTY CLEAN. PULL INTO WINDOW,OPEN EDC AND JET ACROSS WHIPSTOCK TRAY. BEGIN PULLING UP HOLE PUMPING AT MAX RATE THROUGH EDC. SWAP TO SECOND HI-PRESSURE FILTER SCREEN DUE TO HIGH CIRCULATION PRESSURES. TEMPORARY DROP IN PRESSURE OF 200-250 PSI. PRESSURE INCREASED AFTER 30 BBLS OF PUMPING. -BOTTOMS UP FROM WINDOW WITH NO REAL INCREASE IN CUTTINGS. -KICK WHILE TRIPPING DRILL WITH GOOD CREW RESPONSE. MOTORMAN AT KOOMIE, SCS CHECKED IN. SIMULATE FLOW,DOWN ON PUMPS AND CLOSE IN HCR. FLOORHAND IN CELLAR,CONFIRM CLOSURE OF CHOKE. WELL SHUT IN. CONDUCT AAR ON ACTIONS. -BOTTOMS UP FROM DEPLOYMENT SLEEVE HAS SLIGHT INCREASE IN CUTTINGS ACROSS SHAKERS 11:15 - 14:30 3.25 DRILL P PROD1 TURN AROUND AND RUN BACK DOWN AT 100 FT/MIN PUMPING AT 3.4 BPM IN ATTEMPT TO RUN CUTTINGS OUT OF 7". STOP ABOVE LINER TOP TO CHANGE OUT HI PRESSURE SCREENS. PRESSURE TEST TO 250 PSI LOW AND 4000 PSI HIGH. CONTINUE TO RIH TO WINDOW. CLOSE EDC. RIH TO 12,900'. RUN IN WENT WELL TO 12,765'. SEVERAL TAGS AND WORK THROUGH AT 12,767'. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 12 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 19:00 4.50 DRILL P PROD1 ON BOTTOM.OBTAIN SLOW PUMP RATES. FREE SPIN 2630 PSI AT 1.8 BPM. DRILL AHEAD FROM 12,900'. -DRILLING AHEAD WITH NEGATIVE COIL TUBING WEIGHT -CONDUCT FREQUENT BHA WIPERS WITH OVERPULL ON INITIAL PICKUPS -HAVE TO WORK THROUGH 13,000'SEVERAL TIMES AFTER A BHA WIPER. KEEP STACKING OUT. -WORK THROUGH,ABLE TO DRILL AHEAD BY REDUCING PUMP RATE -1.35-1.87 BPM,2250-2940 PSI, ECD 10.05-10.41 PPG,.5-2.3K WOB,MW IN 8.51 PPG,MW OUT 8.58 PPG 19:00 - 19:35 0.58 DRILL P PROD1 BHA WIPER FROM 13032'/CREW CHANGE- _ GET SLOW PUMP RATES 19:35 - 20:20 0.75 DRILL P PROD1 ON BOTTOM DRILLING AT 13032'-1.7 BPM @ 2632 PSI, PVT=264 BBLS 20:20 - 21:20 1.00 DRILL P i PROD1 STRUGGLE WITH WEIGHT TRANSFER-POOH FOR AGITATOR FROM 13050' 21:20 - 21:35 0.25 DRILL P PROD1 OPEN EDC AT WINDOW-5 MINUTE FLOW CHECK -OK 21:35 - 23:10 1.58 DRILL P PROD1 JET WS TRAY @ 2.85 BPM X 3600#/JET LINER TOP @ 10350'AND JOG 1000'PUMP 20 BBL HI-VIS SWEEP @ 3BPM X 3400PSI 23:10 - 00:00 0.83 DRILL P PROD1 CONTINUE POOH @ 60FPM X 3 BPM X 3450 PSI-PVT=244,IA 820,OA 765,WH 50 5/14/2012 00:00 - 01:50 1.83 DRILL P PROD1 POOH FROM 13052'TO INSPECT BHA AND PU AGITATOR 01:50 - 02:00 0.17 DRILL P PROD1 STOP POOH AT 200'- JOG BACK TO 400' CIRCUALTING AT MAX RATE 02:00 - 03:00 1.00 DRILL P PROD1 TAG AT SURFACE-FLOW CHECK WELL-OK -CLOSE EDC-PJSM AND POP OFF WELL/ LAY DOWN AND INSPECT DRILLING BHA-BIT GRADED 1-1 03:00 - 04:20 1.33 DRILL P PROD1 KEEP HOLE FULL AND MU BHA PICKING UP AGITATOR AND FLOAT SUB 04:20 - 08:30 4.17 DRILL P PROD1 STAB INJECTOR ON WELL AND RIH @ 90 FPM X .31 BPM IN.81 OUT @ 600 PSI. LOG TIE-IN AT 11,630'WITH-11'CORRECTION. CONTINUE TO RIH TO 13,050'. 08:30 - 13:00 4.50 DRILL P PROD1 ON BOTTOM WITH NO ISSUES. WEIGHT TRANSFER MUCH BETTER WITH AGITATOR. DRILL AHEAD FROM 13,050'. FREE SPIN 3170 PSI AT 1.7 BPM. -1.65-1.75BPM,3440-3670 PSI,1.62-2.6K WOB, ECD 10.35 PPG, MW IN AND OUT 8.58 PPG -ROP DROPPED OFF AT 13,099'. CONSULT WITH GEO, DROP BELOW SHALE ZONE AND DRILLING IMPROVES. WILL TURN BACK UP TO TRACK UP WITH THE CURRENT FORMATION. -GAMMA INDICATES DRILLING THROUGH PLENTY OF SHALE STILL. MAKE SEVERAL ATTEMPTS TO DRILL AHEAD. PLENTY OF WOB BUT CANNOT GAIN DIFFERENTIAL. SUSPECT BIT BALLING. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 13 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe BayI Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: ,0148°40'14.316"W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Hrs Task 1 Code NPT NPT Depth Phase Description of Operations (hr) 1 (ft) +— 13:00 - 13:45 0.75 I DRILL P PROD1 500'WIPER TRIP WITH INCREASE FLOW RATE AND ORIENTING BIT AROUND IN ;ATTEMPT TO KNOCK OFF SUSPECTED LCLAYS ON BIT. TRIP WENT WELL. 13:45 - 15:00 1.25 DRILL P 1 PROD1 ATTEMPT TO DRILL AHEAD,CANNOT GET MOTOR WORK. PICK UP,SET DOWN WITH 3.5K WOB TO SEE IF IT WILL GENERATE MOTOR WORK. NO MOTOR WORK. ATTEMPT AGAIN WITH 4K DOWN. STILL NO MOTOR WORK. PUMP LO-VIS AND HI-VIS SWEEP COMBO. ATTEMPT TO DRILL AGAIN, NO MOTOR WORK. FLOW CHECK OFF BOTTOM. 15:00 20:00 5.00 • DRILL P PROD1 POH FOR BHA INSPECTION. CHASE SWEEP OUT OF HOLE. INITIAL PICK UP OFF BOTTOM GOOD. WIPER TRIP TO WINDOW GOOD. FLOW CHECK AT WINDOW. OPEN EDC. PICK UP THROUGH LINER AT MAX RATE. I PUMP HI-VIS SWEEP ACROSS LINER TOP AND RUN BACK DOWN TO FLUSH IT. PULL I BACK UP HOLE PUMPING AT MAX RATE. CONTINUE POOH TO 200' JOG TO 600'AND PULL TO SURFACE. — —20:00 - 20:30 T 0.50 DRILL P C ;� � T ! PROD1 5 MIN FLOW CHECK-OK. CREW CHANGE. � PJSM FOR BHA SWAP. 20:30 - 22:20 ! 1.83 DRILL 1 P PROD1 POP OFF AND STAND BACK INJECTOR. LAY DOWN BHA. BIT GRADED 1-1-W/1CHIPPED • TOOTH,W/CLAY IN WATER COURSES- SIGNIFICANT QUANTITY OF METAL SHAVINGS ON MAGNET(PIC'S ATTACHED) 122:20 - 23:05 0.75 DRILL P PROD1 MAKE UP DRILLING BHA#8 -REPLACE MOTOR,AGITATOR,AND BIT-TEST QTS SUB AND ZERO MECHANICAL COUNTER 23:05 - 00:00 0.92 DRILL P PROD1 RIH W/BHA#8-PERFORM SLACK MANAGEMENT-TEST AGITATOR AT 200'= GOOD 5/15/2012 00:00 - 05:30 5.50 DRILL P PROD1 RIH W/BHA#8 TO 13155'. OBTAIN SLOW PUMP RATES. MW IN AND OUT 8.56 PPG. 05:30 10:45 5.25 1 DRILL P PROD1 ATTEMPT TO DRILL AHEAD FROM 13.155'. HARD TO GET TO BOTTOM. SHALE FROM 13,070'TO TD OF 13,155'. TRY SEVERAL ;CHANGES IN APPROACH WITH PUMP RATES ;AND WIPERS. 70K PUW ON ONE PICK UP. 1 ;BEEN AVERAGING 42K PU AFTER 1BREAKOVER. I-GOT TO BOTTOM AND DRILLING AHEAD WITH 30-40 FPH ROP f I I 1-DRILLED TO 13,291';ATTEMPT TO PU FOR . SHORT WIPER,PUW AT 61K. DECISION IS TO CONDUCT FULL WIPER TO WINDOW. j :-1.65-1.70 BPM,3270-3410 PSI,.82-1.58K WOB, ECD 10.45 PPG,MW IN AND OUT 8.61 i PPG 10:45 - 12:10 1.42 DRILL P ; PROD1 I WIPER TO WINDOW. NOTICE SHALES AROUND 13,155'. 1 412 :10 - 13:00 0.83 DRILL P PROD1 TIE IN TO RA-TAG.CORRELATE AND APPLY ! +8.5'CORRECTION — T Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 14 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) i __ _ (ft) 13:00 - 13:30 0.50 DRILL , P PROD1 RIH FROM WIPER. HAVE TO WORK THROUGH STICKY SHALES ONWARDS FROM 13,000'ON TRIP BACK TO _ BOTTOM. _ 13:30 - 14:45 1.25 DRILL P PROD1 DISCUSS WITH MUD ENGINEER: 1.5%SOLIDS AND ALMOST 1,000'ON MUD SYSTEM.AGREE TO CHANGE MUD ORDER NEW MUD SYSTEM FROM MI SWACO. 14:45 - 15:20 0.58 DRILL P PROD1 DRILL AHEAD SLOWLY WHILE ADDING - — 4 LUBRICANTS. 15:20 16:10 0.83 DRILL P PROD1 PERFORM EXTENDED BHA-WIPER TRIP(300') � I FROM 13,322'. 16:10 - 17:05 0.92 DRILL P PROD1 CONTINUE DRILLING AHEAD FROM 13,322'. 17:05 - 18:20 1.25 DRILL P PROD1 PERFORM EXTENDED BHA-WIPER TRIP(300') FROM 13,361'. 18:20 - 19:50 1.50 DRILL P I PROD1 DRILLING AHEAD. ' PUMPRATE= 1.49 BPM/CIRC PRESSURE= 3,040 PSI WOB=0.96K LBS/ROP=55 FPH/ECD= 10.50 PPG I MW IN=8.62 PPG/MW OUT=8.62 PPG ': IAP=540 PSI OAP=450PS1 19:50 - 21:10 I 1.33 i DRILL P PROD1 MOTOR STALLS OUT.PICK UP, BUT HAVE TO WORK COIL AROUND 13,340'TO GET BACK DOWN TO DEPTH. 21:10 - 21:30 rt 0.33 DRILL P PROD1 START PUMPING 35BBLS OF 9.6PPG HIGH DENSITY PILL DOWN COIL. DRILLING AHEAD FROM 13,430'. , PUMPRATE= 1.60 BPM/CIRC PRESSURE= 2,915 PSI WOB=0.91K LBS/ROP=50 FPH/ECD= 10.59 PPG MW IN=9.39 PPG/MW OUT=8.64 PPG IAP=537 PSI OAP=441 PSI 21:30 - 21:50 0.33 DRILL P PROD1 START MUD-CHANGE.TAKE NEW 8.5PPG T ; }' MUD OFF TRUCK AND PUMP DOWN COIL. 21:50 - 22:05 0.25 DRILL P PROD1 DRILL TO 13,455'TO TAKE SURVEY. WITH NEW MUD COMING OUT OF NOZZLE, PERFORM BHA-WIPER 22:05 - 22:30 0.42 DRILL P PROD1 COMMENCE 150'WIPER TRIP TO WINDOW. I CHASE 35BBLS OF HIGH DENSITY PILL WITH � , NEW 9.5PPG MUD. POOH AT 23FPM, PUMPING AT 1.7BPM (1.8BPM IS MAX RATE WITH 2 3/8"BHI X-TREME MOTOR). 22:30 - 23:25 0.92 DRILL P r if PROD1 HAVE NOT NOTICED ANY SHALE-ISSUES WHEN PULLING UP TO 13,000'.KEEP PULLING. 23:25 - 23:30 0.08 DRILL P PROD1 REDUCE PUMP RATE DOWN TO MINIMUM RATE WHEN APPROACHING WINDOW AND ORIENT TOOLFACE TO"AS DRILLED". Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 15 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°1755.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ! (ft) 23:30 23:40 0.17 DRILL P PROD1 PULLED TO 11,600'ABOVE WINDOW. SHUT-DOWN PUMPS AND FLOW-CHECK WELL-ACHIEVE GOOD NO-FLOW.OPEN 1EDC. ' COME BACK ONLINE WITH PUMPS AT 3.6BPM j(3.8BPM IS MAX WITH EDC OPEN)AND PULL UP AT 75FPM(80%OF FLUID VELOCITY). 23:40 - 00:00 0.33 , DRILL P , PROD1 PULL TO 9,000'. 5/16/2012 00:00 - 00:20 0.33 1 DRILL P PROD1 RUN BACK IN HOLE @ 100FPM TO INCREASE 1 OUT-RATE UP TO 4.11 BPM WITH HELP OF COILED TUBING DISPLACEMENT. 00:20 - 01:00 0.67 DRILL P PROD1 HIGH DENSITY PILL IS(THEORETICALLY) COMING BACK OVER SHAKER.CAN BARELY • SEE AN INCREASE IN DENSITY(+0.02PPG) AND DO NOT NOTICE ANY INCREASE IN CUTTINGS. 01:00 - 02:00 1.00 DRILL P PROD1 RUN TO 11,600'AND PU AT 75FPM(80%OF FLUID VELOCITY)TO ENHANCE HOLE CLEAN-OUT. 02:00 - 03:00 1.00 DRILL P PROD1 POH TO 3,000'. NOTICE A FAIR&STEADY 1 AMOUNT OF CUTTINGS COMING OVER THE I SHAKER. DEFINITELY MORE THAN EXPECTED AFTER HAVING CHANGED TO A BRAND-NEW MUD-SYSTEM. 03:00 - 04:30 I 1.50 DRILL P PROD1 PULL UP ALL THE WAY TO 3,000'.TURN AROUND AND RUN BACK IN HOLE. 04:30 - 05:30 1.00 I DRILL P ' PROD1 AT 11,650'CLOSE EDC AND START LOGGING i FOR TIE-IN AT 2.5FPM.CORRELATE AND APPLY+9'CORRETION TO 11,676.95'. IA=714PSI/OA=835PSI. 05:30 - 07:00 1.50 DRILL i P PROD1 RIH IN HOLE AT 43FPM AND PUMPING AT I -0.5BPM. SEE SMALL"FLICKER"AT 13,180' AND ALSO AT 13,250', HOWEVER HAVE TO I WORK COIL ONWARDS FROM 13,357'to 13 455' • 107:00 - 12:00 1 5.00 DRILL P + fi • PROD1 DRILL AHEAD TO 13520-FT MD.PUMP AT 1.94 ' jBPM WITH 3442 PSI ON BOTTOM,3025 PSI I i FREE SPIN.WOB.45K WITH 30 ROP. MUD WEIGHT IN AND OUT 8.6 PPG. ECD 10.6 PPG •• IIEMW. STILL HAVING TROUBLE, DRILLING AHEAD WITH NEGATIVE WEIGHT AND THE IAGITATOR RUNNING INTERMITANTLY. • 12:00 - 15:30 3.50 DRILL P ' PROD1 'DRILL AHEAD IN LATERAL SECTION OF PRODUCTION HOLE AT 13,561-FT MD. PUMP AT.75 BPM TO 1.94 BPM WITH 3475 PSI ON BOTTOM,3025 PSI FREE SPIN.WOB.86K WITH 43 ROP. MUD WEIGHT IN AND OUT 8.6 PPG. ECD 10.6 PPG EMW. STILL HAVING TROUBLE, DRILLING AHEAD WITH NEGATIVE WEIGHT AND THE AGITATOR RUNNING INTERMITANTLY. DECISION MADE TO POOH •AND DRILL A SIDETRACK. 15:30 - 15:45 0.25 DRILL N DPRB 13,561.00 PROD1 FLOW CHECK WELL-STATIC. 15:45 - 17:15 1.50 DRILL N DPRB 13,561.00 PROD1 POOH TO WINDOW AT 11,625-FT MD.OPEN EDC. PUMP HI-VIS SWEEP. POOH AND TIME SWEEP TO BE AT ECD AS PASSING INTO THE 7-IN LINER. 17:15 - 19:30 1 2.25 DRILL N DPRB 13,561.00 PROD1 POOH TO BHA AT 75-FT. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 16 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations _-_ (hr) (ft) 19:30 - 20:00 0.50 DRILL N DPRB 13,561.00 PROD1 PULL TO SURFACE,THEN"JOG"BACK IN HOLE TO 500FT. 20:00 - 20:15 0.25 DRILL N DPRB 13,561.00 PROD1 PICK UP TO 200FT AND FLOW CHECK WELL- STATIC. PULL BHA TO SURFACE, INCREASE PUMPRATE AND CONFIRM AGITATOR IS WORKING. 20:15 - 21:00 0.75 DRILL N DPRB 13,561.00 PROD1 LAY DOWN BHA#8.GRADE BIT 1-1 WT-N-X-I-PN-HP. 21:00 - 21:40 0.67 WHIP N DPRB ! 13,561.00 WEXIT CHANGE OUT PACK-OFF'S ON INJECTOR. 21:40 - 22:00 0.33 I WHIP N DPRB 13,561.00 WEXIT PICK UP INJECTOR AND CHANGE-OUT BHI CHECK VALVES IN UPPER QUICK CONNECT (UQC). CHECK COIL IN GOOD CONDITION, NO NEED ` TO CUT. 22:00 - 22:20 0.33 WHIP N DPRB! 13,561.00 WEXIT STAB ON INJECTOR AND CLOSE SWAB AND MASTER VALVES. 22:20 - 22:50 0.50 WHIP N DPRB i 13,561.00 WEXIT PERFORM PRESSURE TEST ON PACK-OFF'S AND BHI CHECK VALVES AGAINST CLOSED TREE VALVES TO 250PS1/5MIN AND 3,500psi /5MINS.OBTAIN GOOD TEST. 22:50 - 23:00 0.17 WHIP N DPRB 13,561.00 I WEXIT HOLD PJSM BEFORE MAKING UP BHA#9 1 WITH WHIPSTOCK. 23:00 - 23:30 0.50 WHIP N DPRB 13,561.00 WEXIT MAKE UP 2-5/8"X 3-3/16"WHIPSTOCK WITH 033 WS PACKER AND STAB ON INJECTOR. 23:30 - 00:00 0.50 WHIP... N DPRB 13,561.00 WEXIT CONDUCT SHELL-TEST ON MUD PUMP#1 FOLLOWING COMPLETED MAINTENANCE ON PUMP. PRESSURE-TEST QUICK TEST SUB(QTS). _--___-_-__------- 5/17/2012 00:00 - 03:15 3.25 WHIP N DPRB 13,561.00 WEXIT OPEN EDC AND RIH WITH BHA#9. CIRCULATE AT MINIMU RATE OF 0.20BPM. CIRC PRESSURE=660 PSI. IA=243 PSI/OA=334 PSI. 03:15 - 03:45 0.50 WHIP N DPRB 13,561.00 WEXIT START LOGGING DOWN FOR GR TIE INTO TOP OF SAG RIVER AT 100FT/HR. CORRELATE AND APPLY-10' DEPTH-CORRECTION TO 11,216.7FT. 03:45 - 04:00 0.25 WHIP N DPRB 13,561.00 WEXIT TAKE PICK UP WEIGHT:38K LBS CONTINUE RIH. 04:00 - 04:30 0.50 WHIP N DPRB 13,561.00 WEXIT RIH TO 11,484.26'WHICH BRINGS THE TOP OF THE WHIPSTOCK TRAY TO 11,475'. SET THE PUMP TRIP TO 4,500PSI AND ORIENT THE TOOLFACE TO 40LOHS/ 320ROHS.CLOSE EDC. START PUMPING AT MINIMUM RATE(0.3BPM). OBSERVE CIRC PRESSURE INCREASING TO 3,704PS1 BEFROE RAPIDLY FALLING.GOOD INDICATION FOR WHIPSTOCK BEING SET SUCCESSFULLY. PICK UP AND COME OFF WHIPSTOCK WITHOUT ANY OVERPULL. STOP AND OPEN EDC. MEANWHILE FLOWCHECK WELL-WELL IS STATIC. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 17 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 10148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:30 - 07:00 2.50 WHIP N DPRB 13,561.00 WEXIT POOH. PUMP AT MAX RATE(3.70BPM)AND POOH AT 80FPM(80%OF FLUID VELOCITY)TO ACHIEVE MAX HOLE CLEANING. 06:50HRS-CALLED AOGCC TO GIVE 24HRS NOTICE OF BOP-TESTING. 06:55HRS-BOB NOBLE OF AOGCC CALLED BACK AND WAIVED WITNESSING TEST. 07:00 - 07:10 0.17 WHIP , N DPRB 13,561.00 WEXIT FLOW CHECK FOR 10 MINUTES-STATIC. PJSM FOR LAYING DOWN BHA. 07:10 - 07:30 0.33 WHIP N DPRB 13,561.00 WEXIT LAY DOWN WHIPSTOCK RUNNING TOOLS FROM 67-FT. 07:30 - 09:00 1.50 STWHIP N DPRB 13,561.00 WEXIT PJSM.PERFORM INSPECTION AND MAINTENANCE ON INJECTOR CHAIN.NO PROBLEMS FOUND. 09:00 - 09:30 0.50 STWHIP N DPRB 13,561.00 WEXIT PJSM.PICK UP AND MAKE UP BHA#10, MILLING ASSEMBLY WITH BAKER EXTREME MOTOR,DIAMOND STRING MILL AND HCC DSM WINDOW MILL(2.73"NG/2.74"G). 09:30 - 09:45 0.25 STWHIP N DPRB 13,561.00 WEXIT PRESSURE TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASSED. 09:45 - 12:50 3.08 STWHIP N DPRB 13,561.00 WEXIT RIH TO 11,355-FT AT 70 FEET PER MINUTE. 12:50 - 13:30 0.67 STWHIP N DPRB 13,561.00 WEXIT LOG TIE IN AT 100 FEET PER HOUR.UP WEIGHT 35K,DOWN WEIGHT 13K. DEPTH 'CORRECTION MINUS 8-FT.CONTINUE IN AND TAG UP ON WHIPSTOCK SLIDE AT 11,478-FT. 13:30 - 14:00 0.50 STWHIP N DPRB 13,561.00 WEXIT PERFORM SLOW PUMP RATES. PUMP#1 -1.0 BPM WITH 1729 PSI -0.5 BPM WITH 1274 PSI PUMP#2-1.OBPM WITH 1644 PSI -0.5 BPM WITH 1267 PSI 14:00 - 15:10 1.17 STMILL N DPRB 13,561.00 WEXIT BEGIN MILLING OPERATIONS AT 11,476.4FT. TAG UP PINCH POINT AT 11,476.4-FT.FREE SPIN 2336 PSI,ON BOTTOM 2388 PSI.PUMP AT 1.59 BPM IN 1.61 BPM OUT.MUD WEIGHT IN AND OUT 8.56 PPG.WOB 1.62K. 15:10 - 17:00 1.83 STMILL N DPRB 13,561.00 WEXIT TIME MILL THE FIRST FOOT. PUMPRATE: 1.6BPM,CIRC PRESSURE: —2,380PSI,WOB: 1.7-2.3K LBS. 17:00 - 18:30 1.50 STMILL N DPRB 13,561.00 WEXIT AT 11,479.50FT NOTICE DROP IN WOB FROM —2.8K LBS DOWN TO—1.5K LBS WOB. INTERPRET AS EARLY EXIT OF THE NOSE OUT OF 3-1/16"(ABOUT—2'EARLY). 18:30 - 19:30 1.00 STWHIP N DPRB 13,561.00 WEXIT START TIME MILLING AGAIN FOR LAST 1.5FT OF WINDOW TO AVOID CREATING A LIP. 19:30 - 23:20 3.83 STWHIP N DPRB 13,561.00 WEXIT STRING MILL SHOULD BE OUT NOW.START MILLING RAT HOLE.NOTE SLOW PROGRESS WHEN MILLING FORMATION AT—3FT/HR. PUMPRATE: 1.6BPM,CIRC PRESSURE: '-2,450PSI,WOB:—2K LBS. IA=563 PSI/OA=442PS I. 23:20 23:40 0.33 STWHIP N DPRB 13,561.00 WEXIT COMPLETE 10'RAT HOLE. START FIRST UPWARDS REAMING PASS TO 11,473'. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 18 of 36 Operation Summary Report Common Well Name: C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:40 - 00:00 0.33 STWHIP N DPRB 13,561.00 WEXIT RIH AND NOTICE OBSTRUCTION. AT 11.477.6'START MILLING WITH—140PSI MOTORWORKAT 2,330PS1 FREE SPIN AND 2.24K LBS WOB. AT 11,478.2'NOTICE RAPID DROP IN WOB DOWN TO 0.56K LBS. NO FURTHER INDICATION FOR ANY OBSTRUCTION NOTICED. IT APPEARS SMALL PIECE OF FORMATION GOT CAUGHT BETWEEN MILL AND REAMER. 5/18/2012 00:00 - 01:45 1.75 STWHIP N DPRB 13,561.00 WEXIT PERFORM THREE UP AND DOWN REAMING PASSE BETWEEN 11,482'TO 11,474'AT 1FT/MIN. NO INDICATION FOR ANY OBSTRUCTION. 01:45 02:00 0.25 STWHIP N DPRB 13,561.00 - WEXIT PERFORM LAST REAMING PASS FROM 11,485'TO 11,470'. SHUT OFF PUMPS AND DRY DRIFT DOWN TO 11,488'.SMOOTH, NO OBSTRUCTION NOTICED. FLOWCHECK WELL-WELL IS STATIC AND OPEN EDC. 02:00 - 04:30 2.50 STWHIP N DPRB 13,561.00 WEXIT COMMENCE POOH.AT 75FT/MIN,PUMPING AT MAX RATE OF 3.7BPM. 04:30 - 04:45 0.25 STWHIP N DPRB 13,561.00 WEXIT PULL TO 200FT AND FLOWCHECK WELL. WELL STATIC. HOLD PJSM BEFORE LAYING DOWN BHA. 04:45 - 05:00 0.25 STWHIP N DPRB 13,561.00 WEXIT PICK UP TO 100'AND POP OFF INJECTOR. ***PERFORMED KICK WHILE TRIPPING DRILL WHEN BREAKING OFF INJECTOR*** INJECTOR WAS MOVED TO SIDE AND SECURED,X-OVER INSTALLED AND TIGHTENED UP AND 2-3/8"SAFETY JOINT INSTALLED WITHIN<3MINS.NON-ESSENTIAL PERSONNEL LEFT RIGFLOOR AND MOTOR MAN MUSTERED AS REQUIRED AT KOOMEY. CREW SHOWS EXCELLENT PERFORMANCE DURING COMPLEX DRILL WHICH IS VERY RARELY CONDUCTED. 05:00 - 05:30 0.50 STWHIP N DPRB 13,561.00 WEXIT BLOW DOWN AND LAY DOWN BHA. GAUGE BIT AND NOTICE 2.73"GO/2.72" NO-GO. MAKE UP 5'STINGER AND JETTING NOZZLE. 05:30 - 08:00 2.50 STWHIP N DPRB 13,561.00 WEXIT STAB ON INJECTOR.CLOSE MASTER VALVE WITH 33-3/4 TURNS.ATTEMPT TO TEST MASTER WITH BLEED OFF OBSERVED. ATTEMPT SEVERAL TIMES WITH NO SUCCESS. STAND BACK INJECTOR. MAKE UP QUICK TEST SUB NIGHT CAP. PRESSURE TEST MASTER VALVE TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. CLOSE SWAB WITH 33-3/4 TURNS AND PRESSURE TEST TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 08:00 - 09:15 1.25 STWHIP N DPRB 13,561.00 WEXIT WASH OUT STACK WITH JETTING TOOL AT 2 I - BPM WITH 2615 PSI. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 19 of 36 4titsk0 Operation Summary Report Common Well Name: C-12 AFE No . y Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) & Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: , Rig Contractor:NORDIC CALISTA UWI:/Lat:070°1755.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT I NPT Depth Phase Description of Operations (hr) (ft) 09:15 - 12:30 3.25 STWHIP N DPRB 13,561.00 WEXIT OPEN UP RAM DOORS AND INSPECT FOR DAMAGE OR BUILD UP OF METAL CUTTINGS. CLEAN AS NEEDED.ALL RAMS AND RAM -� BODIES APPEAR IN GOOD CONDITION. Vy 12:30 - 22:00 9.50 STWHIP N DPRB 13,561.00 WEXIT PERFORM BI-WEEKLY BOP PRESSURE AND 'V FUNCTION-TEST(SEE ATTACHED)TO 250PS1 A) /5MINS AND 3,500PSI/5MIN ON FOLLOWING 11 ITEMS: -ANNULAR BAG 7 -#1 RAM-BLIND SHEARS -#2 RAM-2-3/8"COMBIS(2-3/8"TEST JOINT) -#3 RAM-2-3/8"x 3-1/2"VBR(2-3/8"TEST JOINT) -#4 RAM-2-3/8"COMBIS(2-3/8"TEST JOINT) ALL RAMS CLOSED WITHIN LESS THAN 2SECONDS.ALSO TESTED HCR AND ALL VALVES ON KILL AND CHOKE LINE AS WELL AS KILL AND CHOKE MANIFOLDS. SUCCESSFULLY TESTED ALL VISUAL AND AUDIBLE GAS ALARMS. PERFORMED ACCUMULATOR DRAWDOWN TEST. -STARTING ACCUMULATOR PRESSURE= 3,100 PSI -FINAL PRESSURE AFTER FUNCTIONING 1 ALL PREVENTERS AND HCR=2,200 PSI -20 SEC TO BUILD 200 PSI,85 SEC TO FULL PRESSURE. -3 NITROGEN BACKUP BOTTLES WITH 2100 PSI. WITNESS OF THE BOP TEST WAS WAIVED BY BOB NOBLE(AOGCC). 22:00 - 22:15 0.25 STWHIP N DPRB 13,561.00 I WEXIT HOLD PJSM BEFORE PICKING UP INJECTOR. 22:15 - 23:00 0.75 STWHIP N DPRB 13,561.00 WEXIT 1 PICKUP INJECTOR AND RECOVER BHI CHECK VALVES.CONNECT TEST-PLATE TO COIL AND PREPARE FOR •PRESSURE-TESTING. 23:00 - 23:30 0.50 STWHIP N DPRB , 13,561.00 WEXIT 'PERFORM BOP PRESSURE-TEST ON INNER REEL VALVE TO 300PSI/5MINS AND 3,500PSI /5MINS. ACHIEVE GOOD TEST. 23:30 - 00:00 0.50 STWHIP N DPRB 13,561.00 WEXIT INSTALL BHI CHECK VALVES INTO UPPER QUICK CONNECT(UOC). COMMENCE PRESSURE TEST TO 300PSI/ 5MIN AND 3,500PSI/5MIN 5/19/2012 00:00 - 00:45 0.75 STWHIP N DPRB 13,561.00 WEXIT COMPLETE PRESSURE-TESTING BHI CHECK VALVES.OBTAIN SUCCESSFUL TEST. 00:45 - 01:15 0.50 STWHIP N DPRB 13,561.00 WEXIT HOLD PJSM BEFORE CONDUCTING MUD GAS SEPARATOR(MGS)DRILL. LINE UP MP#2 TO PUMP THROUGH KILL LINE AND TAKING RETURNS VIA CHOKE LINE TO PITS. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 20 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project: Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:15 - 02:30 1.25 , STWHIP N DPRB 13,561.00 WEXIT ***CARRY OUT MUD GAS SEPARATOR(MGS) DRILL*" SIMULATE THAT DURING DRILLING OPERATIONS GAS IS NOTICED AND THE WSL DECIDES TO ROUTE RETURNS THROUGH MGS.CREW TAKES 7MIN TO PREAPRE(RUN STEAM THROUGH MGS-VENT, SHUT DOWN IGNITION SOURCES ON RIG AND ON GROUND, PLACE SPOTTER TO MONITOR MGS-VENT, CALL SECURITY&PAD OPERATOR), LINE UP AND ROUTE WELL TO MGS.GREAT PERFORMANCE BY CREW! CLEAN UP MGS AND HOLD AAR. 02:30 - 02:40 0.17 STWHIP N DPRB 13,561.00 WEXIT PJSM BEFORE MU BHA#11. 02:40 - 03:15 0.58 STWHIP N DPRB 13,561.00 WEXIT OPEN WELL AND TOP UP WTH IBBLS. MU UP BHA#11 WITH 2 3/8"BHI X-TREME 1.15° BEND AND 2.70"BY 3.0"HYC BI-CENTER BIT STAB ON INJECTOR. 03:15 - 03:30 0.25 STWHIP N DPRB 13,561.00 WEXIT PRESSURE TEST QTS TO 300PSI/5MIN AND 3,500PSI/5MIN AND OPEN ECD. 03:30 - 05:45 2.25 STWHIP N DPRB 13,561.00 WEXIT RIH WITH BHA#11 TO 11,430-FT MD. 05:45 - 06:30 0.75 STWHIP i N DPRB 13,561.00 WEXIT LOG TIE IN TO TOP OF SAG RIVER SAND WITH A MINUS 9-FT CORRECTION.UP WEIGHT 36K,DOWN 8K. 06:30 - 06:45 0.25 DRILL N DPRB 13,561.00 PROD1 RUN IN TO WINDOW AND TAG UP ON =TOM AT 11,480-FT.ROLL PUMPS A MINIMAL 0.17 BPM AND POP THROUG WINDOW BOTTOM. 06:45 - 13:30 6.75 DRILL N DPRB 13,561.00 PROD1 DIRECTIONAL DRILL BUILD SECTION OF PRODUCTION HOLE TO 11,550-FT MD.PUMP j AT 1.69 BPM WITH 1.72 BBLS OUT. CIRCULATING PRESSURE 2380 PSI WITH 2180 PSI FREE SPIN.MUD WEIGHT IN AND OUT 8.58 PPG.ECD 9.88 PPG EMW.WOB 0.74K AT 6-20 FPH.EXPERIENCING PERIODIC STALLING AND SLOW DRILLING COMMON IN THE ZONE 3. 13:30 - 18:00 4.50 DRILL N DPRB 13,561.004 PROD1 DRILLING AHEAD 0 11.571'WITH VERY (SLOW PROGRESS. 1.72BPM @ 2900 PSI,PVT 266,ROP=5 FPH 18:00 - 21:30 3.50 DRILL N DPRB 13.561 00 PROD1 DRILLING AHEAD AT SLOW PACE OF 9- 11 FT/HR. DRILL HARD ZONE 3 CONGLOMERATES. CIRC P=2,400 PSI/FREE SPIN=2,200 PSI WOB=0 70K LBS/ECD 9.9 PPG MM IN= 1.61 BPM/MM OUT= 1.61 BPM IA=620 PSI/OA= 125 PSI 21:30 - 21:45 0.25 DRILL N DPRB 13,561.00 PROD1 TAKE SLOW PUMP RATES: (PUMP#1 - 1.0 BPM WITH 1.659 PSI -0.5 BPM WITH 1,216 PSI PUMP#2-1.0BPM WITH 1.685 PSI -0.5 BPM WITH 1,212 PSI Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 21 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:45 - 23:20 1.58 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD.LOCATE TRANSITION FROM ZONE 3 INTO ZONE 2 AT 11,606'MD/ 8,737'TVD SS. CIRC P=2,421 PSI/FREE SPIN=2,421 PSI WOB=0.95K LBS/ECD 9.95 PPG ,MM IN= 1.63 BPM/MM OUT= 1.65 BPM IA=640 PSI/OA=200 PSI 23:20 - 23:45 0.42 DRILL N DPRB 13,561.00 PROD1 PICKUP AND PERFORM FIRST 150'WIPER TRIP TO WINDOW TO 11,450'. 23:45 - 00:00 0.25 DRILL N DPRB 13,561.00 PROD1 CONTINUE DRILLING AHEAD FROM 11.650'. 5/20/2012 ,00:00 - 02:00 2.00 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD FROM 11,660'AT A ROP RANGING BETWEEN 9 AND 24 FT/HR. CIRC P=2,490 PSI/WOB=1.20K LBS/ECD 9.90 PPG MM IN=1.57 BPM/MM OUT=1.61 BPM MM IN=8.58 PPG/MM OUT=8.58 PPG IA=640 PSI/OA=200 PSI 02:00 - 04:00 2.00 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD.NOTICE A STEADILY INCREASE CIRC PRESSURE TO>3,000PSI. ALSO NOTICE A DROP IN BUILD RATE FROM >16DEG DLS DOWN TO-12DEG DLS. AT 03:2OHRS: CIRC P=3,110 PSI/WOB=1.21K LBS/ECD 9.90 PPG MM IN=1.60 BPM/MM OUT=1.64 BPM MM IN=8.61 PPG/MM OUT=8.58 PPG IA=677 PSI/OA=306 PSI AT 03:55HRS: CIRC P=3,029 PSI/WOB=1.34K LBS/ECD 9.90 PPG MM IN=1.57 BPM/MM OUT=1.58 BPM IMM IN=8.60 PPG/MM OUT=8.58 PPG IA=680 PSI/OA=314 PSI DECIDE TO PULL BHA AND INSPECT CHECK VALVES,MOTOR AND BIT. 04:00 - 04:20 0.33 DRILL N DPRB 13,561.00 PROD1 FLOWCHECK WELL AT TD-WELL IS STATIC. 04:20 - 04:30 0.17 DRILL N DPRB 13,561.00 PROD1 POOH WITH BHA#11 TO WINDOW 04:30 - 04:40 0.17 DRILL N DPRB 13,561.00 . PROD1 FLOWCHECK WELL AT WINDOW-WELL IS STATIC. 04:40 - 07:30 2.83 DRILL N DPRB 13,561.00 PROD1 !OPEN EDC AND POOH. 07:30 - 07:45 0.25 DRILL N DPRB 13,561.00 PROD1 JOG BHA THEN PERFORM FLOW CHECK. 07:45 - 08:30 j 0.75 DRILL N DPRB 13,561.00 PROD1 LAY DOWN BHA FROM 58-FT. CHANGE OUT CHECKS.ONE CHECK OK THE OTHER DAMAGED(SPRING).BIT 6-3. 08:30 - 09:30 1.00 DRILL N DPRB 13,561.00 PROD1 TEST CHECKS TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 09:30 - 09:45 0.25 DRILL N DPRB 13,561.00 PROD1 MAKE UP BHA WITH NEW MOTOR CHANGED FROM 1.15 DEGREE BEND TO 1.10 DEGREE BEND.CHANGE BIT. 09:45 - 10:00 0.25DRILL i N DPRB 13,561.00 PROD1 iMAKE UP INJECTOR. Printed 6/18/2012 10:53:34AM North America-ALASKA- BP Page 22 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011K1-C(2,117,744.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:00 - 10:30 0.50 DRILL N DPRB 13,561.00 PROD1 TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 10:30 - 12:50 2.33 DRILL N DPRB 13,561.00 PROD1 RIH AT 100 FT PER MINUTE TO JUST ABOVE WINDOW THEN SLOW TO 70 FPM. 12:50 - 13:10 0.33 DRILL N DPRB 13,561.00 PROD1 SLOW DOWN AND SLIDE THROUGH WINDOW WITH NO PROBLEMS AND NO HANG UPS. LOG TIE-IN AT 0.17 BPM WITH 820 PSI. CORRECTION AT PLUS 9.5-FT. 13:10 - 13:45 0.58 DRILL N DPRB 13,561.00 PROD1 RIH TO 11,711-FT MD. 13:45 - 14:00 0.25 DRILL N DPRB 13,561.00 PROD1 TAKE SLOW PUMP RATES. PUMP#1 AT 1.0 BPM WITH 1530 PSI. AT 0.5 BPM WITH 1150 PSI. PUMP#2 AT 1.0 BPM WITH 1680 PSI. AT 0.5 BPM WITH 1180 PSI. 14:00 - 14:15 0.25 DRILL N DPRB 13,561.00 PROD1 POOH FOR RE-TIE-IN. 14:15 - 14:45 0.50 DRILL N DPRB 13,561.00 PROD1 LOG BACK IN AT 0.17 BPM WITH 800 PSI.RUN TO BOTTOM.CORRECTION AT MINUS 18.5-FT. 14:45 - 18:00 3.25 DRILL N DPRB 13,561.00 PROD1 DIRECTIONALLY DRILL AHEAD PUMPING AT 1.66 BPM WITH 2413 PSI, FREE SPIN 2270 PSI. WOB 0.83K AT 25 ROP.MUD WEIGHT IN AND OUT 8.58 PPG.ECD 10.08 PPG EMW. UP WEIGHT 39K, DOWN 11K.VOLUME 253 BBLS. IA 508 PSI OA 139 PSI. 18:00 - 22:00 4.00 DRILL N DPRB 13,561.00 PROD1 TAKE SCR'S AND CONTINUE DRILLING. ACHIEVE ONLY EXTREMELY SLOW DRILLING PROGRESS WITH UP TO 60%CHERT IN SAMPLES.MADE 2FT IN 4HRS. PUMP#1 AT 1.0 BPM WITH 1530 PSI. AT 0.5 BPM WITH 1150 PSI. PUMP#2 AT 1.0 BPM WITH 2310 PSI. AT 0.5 BPM WITH 1680 PSI. CIRC P=2,355 PSI/WOB=0.76K LBS/ECD 10.03 PPG/PVT=251 MM IN=1.69 BPM/MM OUT=1.70 BPM MM IN=8.57 PPG/MM OUT=8.58 PPG IA=670 PSI/OA=290 PSI 22:00 - 00:00 2.00 DRILL N DPRB 13,561.00 PROD1 CONTINUE DRILLING AHEAD WITH VERY SLOW PROGRESS OF ROP=5 FT/HR DUE TO VERY HARD&CHERTY FORMATION. CIRC P=2,161 PSI/WOB=0.50K LBS/ECD 10.0 PPG/PVT=251 MM IN=1.54 BPM/MM OUT=1.59 BPM MM IN=8.57 PPG/MM OUT=8.58 PPG IA=670 PSI/OA=312 PSI 5/21/2012 00:00 - 02:30 2.50 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD WITH SLIGHTLY IMPROVING PROGRESS.ROP=16 FT/HR. CIRC P=2,355 PSI/WOB= 1.14K LBS/ECD 10.12 PPG/PVT=248 MM IN=1.60 BPM/MM OUT=1.66 BPM MM IN=8.59 PPG/MM OUT=8.58 PPG IA=682 PSI/OA=350 PSI Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 23 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:30 05:30 3.00 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD.NOTICING SHORT"SWEET SPOTS"WITH-50 FT/HR. � I CIRC P=2,450 PSI/WOB=0.42 K LBS/ECD 10.15 PPG/PVT=247 MM IN=1.68 BPM/MM OUT=1.72BPM MM IN=8.59 PPG/MM OUT=8.58 PPG IA=682 PSI/OA=360 PSI 05:30 - 13:00 7.50 DRILL N DPRB 13,561.00 PROD1 DRILL AHEAD IN BUILD SECTION OF PRODUCTION HOLE TO 11.850-FT MQ,PUMP AT 1.63 BPM IN,1.67 BPM OUT WITH 2820 PSI 'ON BOTTOM,2200 PSI FREE SPIN.WEIGHT ON BIT 0.5 TO 1.5K WITH ROP FROM 5-40 FPH.MUD WEIGHT IN AND OUT 8.61 PPG. ECD 10.17 PPG EQUIVALANT CIRCULATING DENSITY.PIT VOLUME 244 BBLS. IA-690 PSI, OA-385 PSI. TAKE SLOW PUMP RATES. PUMP#1 AT 1.0 BPM WITH 2439 PSI. AT 0.5 BPM WITH 1710 PSI. ,PUMP#2 AT 1.0 BPM WITH 2362 PSI. AT 0.5 BPM WITH 1677 PSI. 13:00 - 13:20 0.33 DRILL N DPRB 13,561.00 PROD1 PERFORM WIPER TRIP TO 11,490-FT MD BELOW WINDOW.NO PROBLEMS ,OBSERVED. 13:20 - 13:30 0.17 DRILL N DPRB j 13,561.00 PROD1 RUN TIE IN LOG TO 11,519-FT MD.RUN AT 2-FT PER MINUTE PUMPING AT 0.36 BPM WITN 1018 PSI.UP WEIGHT 38K,DOWN 20K. 13:30 - 13:40 0.17 DRILL N DPRB 113,561.00 PROD1 ,RIH TO BOTTOM AT 11,850-FT MD. 13:40 - 17:00 3.33 DRILL N DPRB 13,561.00 PROD1 DIRECTIONALY DRILL AHEAD TO 11,929-FT 'MD. PUMP AT 1.66 BPM IN,1.69 BPM OUT WITH 2800 PSI ON BOTTOM,2200 PSI FREE SPIN.WEIGHT ON BIT 0.5 TO 2.92K WITH ROP OF 5-20 FPH.ECD 10.17 PPG EMW. PIT VOLUME 239 BBLS.IA-721 PSI,OA-410 PSI. 17:00 - 20:20 3.33 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD.MAKING FAIR PROGRESS AT ROP=50-90 FT/HR. CIRC P=2,732 PSI/WOB=0.21 K LBS/ECD 10.24 PPG/PVT=236 MM IN= 1.62 BPM/MM OUT= 1.65 BPM MM IN=8.61 PPG/MM OUT=8.60 PPG IA=728 PSI/OA=415 PSI TAKE SLOW PUMP RATES. PUMP#1 AT 1.0 BPM WITH 2527 PSI. AT 0.5 BPM WITH 1749 PSI. PUMP#2 AT 1.0 BPM WITH 2549 PSI. AT 0.5 BPM WITH 1730 PSI. 20:20 - 21:00 0.67 DRILL N DPRB 13,561.00 PROD1 PERFORM 2ND 150'WIPER TRIP TO WINDOW. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 24 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.8571 Long: 10148°40'14.316'W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Firs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 00:00 3.00 DRILL N DPRB 13,561.00 PROD1 CONTINUE DRILLING AHEAD MAKING FAIR PROGRESS AT ROP=50-70 FT/HR. CIRC P=3,083 PSI/WOB=2.10 K LBS/ECD 10.30 PPG/PVT=230 MM IN=1.70 BPM/MM OUT= 1.74BPM MM IN=8.63 PPG/MM OUT=8.62 PPG IA=756 PSI/OA=448 PSI GEO DEFINES TRANSITION FROM Z-2A TO Z-1 B AT 12,026'. 5/22/2012 00:00 - 00:30 0.50 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD TO 12,120'. NOTICE DROP IN DOG LEG SEVERITY(DLS) FROM—15°DOWN TO 8°DLS. ALSO OBSERVE INCREASING DIFFERENTIAL PRESSURE ACROSS MUD MOTOR, INDICATING A DETERIORATING MOTOR PERFORMANCE. 00:30 - 02:00 1.50 DRILL N DPRB 13,561.00 PROD1 COMPLETE BUILD-SECTION AT 12,150'. DECIDE TO PULL OUT OF HOLE FOR BIT/ MOTOR-CHANGE AND FOR INSPECTING/ PRESSURE-TESTING BHI CHECK VALVES. PUMP 17BBLS HIGH VIZ PILL FROM PIT#4 WHILST SLOWLY PICKING UP AT 1 OFT/HR PUMPING AT 1.8BPM. RUN BACK IN HOLE TO 12,149'AND FLOWCHECK WELL-WELL STATIC. POOH AT 23 FT/MIN PUMPING AT 1.5 BPM. PVT=312 BBLS. _ 02:00 - 02:15 0.25 DRILL N DPRB 13,561.00 PROD1 PULL INTO WINDOW AND PERFORM FLOWCHECK ON WELL-WELL STATIC. OPEN EDC. 02:15 - 04:50 2.58 DRILL N DPRB 13,561.00 PROD1 'PULL OUT OF HOLE PUMPING AT 3.5- 3.6BPM,PULLING AT 75 FT/MIN(POOH-SPEED =80%OF FLUID VELOCITY). FOUND MULTIPLE PIECES OF RUBBER ON SHAKER WHEN PILL ARRIVED AT SURFACE. 04:50 - 05:15 0.42 DRILL N DPRB 13,561.00 PROD1 PULL ALL WAY UP TO SURFACE AND"JOG' DOWN TO 260'. CONDUCT 5MIN FLOWCHECK,CLOSE EDC. PULL BHA TO SURFACE. 05:15 - 05:45 0.50 DRILL N DPRB 13,561.00 PROD1 LAY DOWN BHA#12. 05:45 - 06:30 0.75 DRILL N DPRB 13,561.00 PROD2 INSPECT CHECKS-OK.MAKE UP TEST HOSE AND TEST CHECKS TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH- PASS. 06:30 - 07:00 0.50 DRILL N DPRB 13,561.00 PROD1 MAKE UP BHA#13 WITH NEW BIT,MOTOR, POWER PAC AND COMMUNICATIONS. 07:00 - 07:30 0.50 DRILL N DPRB 13,561.00 PROD1 MAKE UP INJECTOR.TEST QUICK TEST SUB TO 250 PSI LOW,3500 PSI HIGH FOR 5 CHARTED MINUTES EACH-PASS. 07:30 - 10:00 2.50 DRILL N DPRB 13,561.00 PROD1 FNH AT TO TOP OF WINDOW AT 11,477-FT MD. SHUT DOWN PUMP AND WORK THROUGH WINDOW WITH NO PROBLEM. 10:00 10:20 0.33 DRILL N DPRB 13,561.00 PROD1 LOG TIE-IN AT 1.9 FPM PUMPING AT 0.36 FPM WITH 1130 PSI. UP WEIGHT 40K, DOWN 15K. CORRECTION MINUS 9.5-FT. 10:20 - 10:40 0.33 DRILL N DPRB 13,561.00 PROD1 I RIH TO BOTTOM AT 12150-FT MD. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 25 of 36 Operation Summary Report Common Well Name: C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:40 - 12:30 1.83 DRILL N DPRB 13,561.00 PROD1 PERFORM SLOW PUMP RATES. 'PUMP#1 AT 0.5 BPM WITH 1373 PSI. AT 1.0 BPM WITH 1849 PSI. PUMP#2 AT 0.5 BPM WITH 1399 PSI. AT 1.0 BPM WITH 1772 PSI. DRILL AHEAD TO 12,300-ft MD. PUMP AT 1.72 BPM IN,1.70 BPM OUT WITH 2992 PSI ON BOTTOM,2580 PSI FREE SPIN.WEIGHT ON BIT 1.54K WITH 150 ROP.MUD WEIGHT IN AND OUT 8.6 PPG WITH AN ECD OF 10.49 PPG. PIT VOLUME 314 BBLS. IA-676 PSI,OA- 342 PSI. 12:30 - 13:30 1.00 DRILL N DPRB 13,561.00 PROD1 _ WIPER,TRIP TO BELOW WINDOW AT 11.490-FT MD. UP WEIGHT 40K, DOWN 15K. 13:30 14:50 1.33 DRILL N DPRB CO PROBLEMS. - � 13,561.00 I PROD1 CONTINUE DRILLING TO 12,450'. 14:50 - 20:15 5.42 DRILL N DPRB 13,561.00 j PROD1 PERFORM WIPER TRIP TO 3,000'. 20:15 20:30 0.25 DRILL N DPRB 13,561.00 - PROD1 CLOSE EDC AND LOG FOR TIE-INTO RA-TAG. APPLY A+5FT DEPTH CORRECTION TO 11,517.58' 20:30 - 21:15 0.75 DRILL N DPRB 13 561.00 PROD1 KEEP RIH. SIT DOWN ON SHALE-STRINGER AT 12,041'. I PICK UP, RE-ORIENT TOOLFACE AND I MANAGE TO RUN PAST SHALE. 21:15 - 23:20 2.08 DRILL N DPRB 13,561.00 PROD1 TAKE SCR'S: PUMP#1 AT 0.5 BPM WITH 1370 PSI. AT 1.0 BPM WITH 1780 PSI. PUMP#2 AT 0.5 BPM WITH 1377 PSI. AT 1.0 BPM WITH 1765 PSI. i I DRILL AHEAD FROM 12,450'WITH GOOD ROP I OF 200 FT/H. ENCOUNTER 14N-SHALE AT APPROX. 12,590'. CIRC P=2,534 PSI/WOB=0.32 K LBS/ECD 10.70 PPG/PVT=294 MM IN= 1.61 BPM/MM OUT=1.67 BPM MM IN=8.62 PPG/MM OUT=8.62 PPG IA=861 PSI/OA=669 PSI 23:20 - 00:00 0.67 DRILL N DPRB 13,561.00 PROD1 PERFORM FIRST 150'WIPER TRIP TO WINDOW;PICK UP TO 11,500'AND RUN IN HOLE AGAIN. 5/23/2012 00:35 - 01:10 0.58 DRILL N DPRB 13,561.00 DRILLING AHEAD FROM 12,600'AND DRILL TO 12.625'. 00:00 - 00:35 0.58 DRILL N DPRB 13,561.00 PROD1 RIH FROM WIPER.MEANWHILE START MUD CHANGE BY TAKING FLUIDS OUT TO TT. 01:10 - 02:00 0.83 DRILL N DPRB 13,561.00 PROD1 GEO REQUESTS TO PAUSE DRILLING AHEAD AND PULL OFF BOTTOM IN ORDER TO CALL TOWN GEO AND DISCUSS WAY FORWARD. 02:00 - 02:15 0.25 DRILL N DPRB 13,561.00 PROD1 CONTINUE DRILLING. GEO CONFIRMS TOP OF 14N-SHALE TO BE 12,592'AND BOTTOM 12,633. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 26 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011K1-C(2,117,744.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°1755.857"7 Long: 0148°4014.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:15 - 02:45 0.50 DRILL N DPRB 13,561.00 PROD1 AT 12,644'NOTICE TOTAL LOSS OF RETURNS FOR APPROX 5 MINUTES. PICK UP AND OBSERVE 30K LBS OVERPULL. PULL FREE AND PICK UP. FLUIDS RETURNS RECOVER WITHIN NEXT 10MINUTES. NO FAULT PREDICTED, BUT WELLPLAN IS EXTREMELY CLOSE TO PB#1 WELLBORE WHICH SUGGESTS THAT PB#1 WAS HIT. DECIDE TO CONTINUE DRILLING. MANAGE TO CROSS CRITICAL DEPTH OF 12,644' WITHOUT ANY FURTHER LOSSES.MUD CHANGE ONGOING. 02:45 - 03:30 0.75 DRILL N DPRB 13,561.00 PROD 9: ► :. I. I . SOD :• FT/HR). CIRC P=2,765 PSI/WOB=2.05 K LBS/ECD 10.70 PPG MM IN=1.54 BPM/MM OUT=1.58 BPM MM IN=8.53 PPG/MM OUT=8.62 PPG IA=762 PSI/OA=520 PSI 03:30 - 04:00 0.50 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD WITH ROP OF 147 FT/HR. CIRC P=2,700 PSI/WOB=2.91 K LBS/ECD 10.70 PPG MM IN=1.65 BPM/MM OUT= 1.66 BPM MM IN=8.54 PPG/MM OUT=8.66 PPG IA=719 PSI/OA=443 PSI 04:00 - 06:40 2.67 DRILL N DPRB 13,561.00 PROD1 PERFORM SECOND 150'WIPER TRIP TO WINDOW. 06:40 - 06:50 0.17 DRILL N DPRB 13,561.00 PROD1 TAG BOTTOM,PU TO OBTAIN SPR'S PUMP#1 0.5 BPM= 1337 PSI 1.0 BPM= 1812 PSI 1.7 BPM=2604 PSI PUMP#2 0.5 BPM=1311 PSI 1.0 BPM=1754 PSI 1.7 BPM=2663 PSI 06:50 - 09:00 2.17 DRILL ' N DPRB 13,561.00 PROD1 CONTINUE DRILLING FREE SPIN=2600 PSI @ 1.65 BPM PUMPRATE= 1.65 BPM/CIRC PRESSURE= 2725 PSI WOB= 1.0K LBS/ROP= 122 FPH/ECD= 10.36 PPG MW IN=8.56 PPG/MW OUT=8.56 PPG IAP=703 PSI OAP=387 PSI 09:00 - 13:12 4.20 DRILL N DPRB 13,561.00 PROD1 WIPER TRIP TO 3000' 09:55 11450'OPEN EDC, LAST TRUCK ON LOCATION TO COMPLETE MUD SWAP, LOAD PITS WHILE PUMPING 20 BBL HI-VIS PILL 10:20 POOH CHASING PILL AT 80%OF PUMP RATE, PITS ARE TOPPED OFF HI-VIS SWEEP DID NOT HAVE ANY INCREASE IN CUTTINGS BUT STILL GETTING A LOT OF CUTTINGS BACK 12:10 3000'TURNAROUND AND RIH Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 27 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:12 - 13:40 0.47 DRILL N DPRB 13,561.00 PROD1 ***CONDUCT MGS DRILL*** DRILLER SIMULATED SEEING LOW LEVEL METHANE AT THE SHAKER.THE PUMP WAS SHUT DOWN AND THE WELL WAS CHECKED FOR FLOW WHILE WE LINED UP TO THE MGS.THE MGS WAS LINED UP AND READY FOR RETURNS IN 3 MINUTES,NO FLOW WAS SEEN DURING THIS TIME SO THE PUMP WAS 'BROUGHT BACK ONLINE TAKING RETURNS THROUGH THE MGS.THE DRILL WAS FOLLOWED BY AN AAR TO COMPLETE THE DRILL.FLUSH MGS WITH WATER THEN CONTIUE NORMAL OPERATIONS 13:40 14:20 0.67 DRILL N DPRB 13,561.00 PROD1 CONTINUE RIH FROM 8800' 14.20 - 14:35 0.25 DRILL N DPRB 13,561.00 PROD1 CLOSE EDC AND RIH TO LOG TIE IN 14:35 - 15:10 0.58 DRILL N DPRB 13,561.00 PROD1 CORRECT DEPTH+12.5'AND RIH TO TD 15:10 - 18:00 , 2.83 DRILL N DPRB 13,561.00 PROD1 CONTINUE DRILLING FREE SPIN=2730 PSI @ 1.65 BPM j PUMPRATE=1.65 BPM/CIRC PRESSURE= 3245 PSI WOB=2.4K LBS/ROP=132 FPH/ECD= 10.31 PPG MW IN=8.54 PPG/MW OUT=8.53 PPG IAP=765 PSI OAP=566 PSI SLOW DRILLING STARTING AT 12950' GAMMA AT 12950'SHOWS THE START OF A SHALE 18:00 - 19:45 1.75 DRILL N DPRB 13,561.00 PROD1 FACE ISSUES WITH WEIGHT TRANSFER AND STRUGGLE TO DRILL AHEAD THROUGH SHALES.YET SEE GOOD ROP WHENEVER THE BIT IS ENGAGED. OBTAIN SPR'S PUMP#1 PUMP#2 0.5 BPM=14240 PSI 0.5 BPM=1410 PSI 1.0 BPM=1905 PSI 1.0 BPM=1905 PSI 19:45 - 21:00 1.25 DRILL N DPRB 13,561.00 PROD1 PERFORM 150'WIPER TRIP#1 FROM 13,050' TO WINDOW. 21:00 - 21:40 0.67 DRILL N DPRB 13,561.00 PROD1 TURN AROUND AND RUN BACK IN HOLE. 21:40 - 22:20 0.67 DRILL N DPRB 13,561.00 PROD1 ***CONDUCT MGS DRILL*** SIMULATED A KICK WHILE TRIPPING.WELL WAS FLOW CHECKED,SHUT IN AND THEN LINED UP TO THE MGS WHICH TOOK LESS THAN 3MIN. GREAT JOB BY THE CREW. IN THE FOLLOWING AAR,WE HAD A GOOD DISCUSSION ON IGNITION SOURCES AND LINE UP TO THE TIGERTANK. IN WINTER, THERE WOULD BE MANY MORE TRUCKS, HEATERS OR OTHER IGNITION SOURCES WHICH COULD EXTEND THE LINE UP TIME SIGNIFICANTLY.ALSO DISCUSSED WHEN TO LINE UP TO THE MGS OR WHEN TO LINE UP TO THE TIGERTANK AND WHAT FACTORS WOULD EFFECT THE DECISION MAKING (MUD VOLUME AT HAND, ROOM LEFT IN MGS). 22:20 - 22:30 0.17 DRILL N DPRB 13,561.00 PROD1 COMPLETE WIPER TRIP Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 28 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°1755.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (ft) 22:30 - 00:00 1.50 DRILL N DPRB 13,561.00 PROD1 DRILLING AHEAD.NOTICE VERY SLOW PROGRESS AS IT PROVES DIFFICULT TO ENGAGE BIT.TRY DIFFERENT PUMPRATES AND RIH-SPEEDS IN ORDER TO GET BIT TO "BITE"FORMATION.ONCE ENGAGED,WE ARE DRILLING AHEAD WITH GOOD ROP(-100 FT/HR). CIRC P=3,189 PSI/WOB=1.24 K LBS/ECD 10.44 PPG MM IN=1.72 BPM/MM OUT=1.78 BPM MM IN=8.57 PPG/MM OUT=8.56 PPG IA=798 PSI/OA=531 PSI MEANWHILE DISCUSS OPTION OF RUNNING AGITATOR WITH ODE. 5/24/2012 00:00 - 03:00 3.00 DRILL N DPRB 13,561.00 PROD1 CONTINUE DRILLING AHEAD. STILL OBSERVING SAME CHALLENGE WITH WEIGHT TRANSFER AND GETTING BIT TO ENGAGE,BUT GOOD PROGRESS(ROP=174 FT/HR)WHEN ACTUALLY DRILLING AHEAD. CIRC P=3,120 PSI/WOB=1.04 K LBS/ECD 10.44 PPG MM IN=1.72 BPM/MM OUT=1.73 BPM MM IN=8.57 PPG/MM OUT=8.56 PPG IA=800 PSI/OA=515 PSI 03:00 - 03:20 0.33 DRILL N DPRB 13,561.00 PROD1 HAVE TO INCREASINGLY WORK COIL WITHOUT MAKING ANY SIGNIFICANT DRILLING PROGRESS,WHICH MEANS THAT WE ARE JUST CONSUMING COIL-FATIGUE LIFE. DECIDE TO PUMP 15BBLS HIGH-HIS PILL AND POOH FOR BHA-CHANGE WHEN PILL HAS ARRIVED AT NOZZLE. 03:20 - 03:35 0.25 DRILL N DPRB 13,561.00 PROD1 FLOWCHECK WELL.OBTAIN GOOD NO-FLOW. 03:35 - 04:45 1.17 DRILL N DPRB 13,561.00 PROD1 POOH. 04:45 - 05:00 0.25 DRILL N DPRB 13,561.00 PROD1 FLOWCHECK WELL.OBTAIN GOOD NO-FLOW AND OPEN EDC. PUMP SECOND HIGH VIS PILL(35BBLS)OUT OF NOZZLE TO HELP CLEANING OUT THE 7" TBG. 05:00 - 06:50 1.83 DRILL N DPRB 13,561.00 PROD1 CONTINUE POOH AT 75 FT/HR(80%OF FLUID VELOCITY). 06:50 - 07:10 0.33 DRILL N DPRB 13,561.00 PROD1 4200'PJSM TO LD THE BHA WHILE POOH 07:10 - 07:50 0.67 DRILL N DPRB 13,561.00 PROD1 2600'CONTINUE POOH 07:50 - 08:05 0.25 DRILL N DPRB 13,561.00 PROD1 FLOW CHECK THE WELL 08:05 - 08:15 0.17 DRILL N DPRB 13,561.00 PROD1 GOOD NO FLOW CHECK, PU INJECTOR TO WATCH SLICK BHA AS IT IS PULLED TO SURFACE TO KEEP FROM PULLING BHA INTO THE CHAINS 08:15 - 08:30 0.25 DRILL N DPRB 13,561.00 PROD1 LD BHA BIT HAS SEVERAL CHIPPED BUTTONS AND WAS GRADED 1-4 Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 29 of 36 Operation Summary Report • Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT DepthPhase Description of Operations (hr) (ft) 08:30 - 12:20 3.83 DRILL N DPRB 13,561.00 PROD1 CHANGE PACK OFFS '08:55 TEST MASTER&SWAB BARRIERS 09:30 MU SWIZZLE STICK TO JET STACK 09:45 JET STACK 10:15 TEST PACK-OFFS GOOD LOW TEST HAVING TROUBLE GETTING HIGH PT 11:45 GOOD HIGH PT 12:00 OPEN MASTER&SWAB TO CHECK FOR PRESSURE, NO PRESSURE, FLUID PACK FOR FLOW CHECK,TOOK 2 BBLS 1215 GOOD NO FLOW CHECK,PU INJECTOR 12:20 - 12:25 0.08 DRILL N DPRB 13,561.00 PROD1 FUNCTION TEST OUR BOPE FROM THE RIG FLOOR,CONFIRMED EACH CLOSURE FROM THE CELLAR&KOOMEY 12:25 - 13:30 1.08 DRILL N DPRB 13,561.00 PROD1 PJSM TO MU LATERAL BHA#14 WITH AN AGITATOR 12:35 REMOVE CHECKS FROM BHI UQC 12:45 STAND BACK INJECTOR TO MU BHA#14 12:50 MU BHA#14 WITH AGITATOR 13:10 PU INJECTOR AND MU TO THE BHA 13:20 PT QTS 13:30 - 15:40 2.17 DRILL N DPRB 13,561.00 PROD1 RIH PVT=234 BBLS AGITATOR SHALLOW HOLE TEST IS GOOD 15:40 - 16:05 0.42 r. DRILL N DPRB 13,561.00 PROD1 LOG TIE IN 16:05 - 17:00 0.92 DRILL N DPRB 13,561,00 PROD1 CORRECT DEPTH-9'AND CONTINUE RIH TO CONTINUE DRILLING 17:00 17:15 0.25 DRILL N DPRB 13,561.00 PROD1 BACK ON BOTTOM DRILLING FREE SPIN=3300 PSI @ 1.70 BPM PUMPRATE= 1.70 BPM/CIRC PRESSURE= 3500 PSI WOB= 1.6K LBS/ROP=75 FPH/ECD= 10.73 PPG MW IN=8.59 PPG/MW OUT=8.57 PPG IAP=625 PSI OAP=273 PSI 17:15 - 18:00 0.75 DRILL N DPRB 13,561.00 PROD1 DRILLED ABOUT 20'AND IT LOOKS LIKE THE AGITOR STARTING AND STOPPING ,18:00 - 21:30 3.50 DRILL N DPRB 13,561.00 PROD1 DIRECTIONAL DRILL 3"LATERAL HOLE FROM 13,200'TO 13,350'.OBSERVE STEADY ROP OF 75 FT/HR. CIRC P=3,552 PSI/WOB=0.87 K LBS/ECD 10.89 PPG MM IN= 1.77 BPM/MM OUT= 1.78 BPM MM IN=8.59 PPG/MM OUT=8.56 PPG IA=703PS1/OA=314PS1 ******HOLD ACCUMULATOR DRILL********* HOLD"TABLETOP"ACCUMULATOR DRILL WITH NORDIC CREW. DISCUSS THE DOYON 16'S KOOMEY UNIT INCIDENT. DISCUSSED INCIDENT AND HOW IT APPLIES TO NORDIC#1. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 30 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857'7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:30 - 00:00 2.50 DRILL N DPRB 13,561.00 PROD1 PICKUP FOR 150'WIPER TRIP#1 FROM 10,350'TO 11,508'(WINDOW).OPEN HOLE APPEARS TO BE CLEAN, DO NOT OBSERVE ANY OVERPULLS WHEN PICKING-UP OR WEIGHT LOSSES WHEN RUNNING IN HOLE. CALL SLB CEMENTERS AND REPORT BHT= 160°F AT 13,350'. 5/25/2012 00:00 - 00:25 0.42 DRILL N DPRB 13,561.00 PROD1 OBTAIN SPR'S BEFORE CONTINUING TO DRILL: PUMP#1 PUMP#2 0.5 BPM=1650 PSI 0.5 BPM= 1650 PSI 1.0 BPM=2190 PSI 1.0 BPM=2220 PSI 00:25 - 03:00 2.58 DRILL N DPRB 13,561.00 PROD1 DIRECTIONAL DRILL 3"LATERAL HOLE FROM -13,350'TO 13,430'MD(80'IN 2.6 HRS=-30 - _FT/HR).VERY STEADY DRILLING IN SILTY SAND. PUMPRATE=1.7-1.8 BPM,CIRC PRESSURE =3,834 PSI,FREE SPIN=3,560 PSI©1.75 BPM,388-410 BIT RPM, 1.05K LBS DOWNHOLE WOB.MW IN=8.59 PPG/MW OUT=8.57 PPG,ECD=11.73 PPG,IAP=625 PSI OAP=273 PSI SEE ABBOUT 2.5BBLS LOSSES TO FORMATION WHILE DRILLING. 03:00 - 04:00 1.00 DRILL N DPRB 13,561.00 PROD1 ENTER CLEANER SANDS AND ACHIEVE ROP OF 80-100FT/HR WHEN GETTING GOOD WEIGHT TRANSFER DOWN TO BIT. CONTINUE TO SEE 2.5BBLS LOSSES TO FORMATION. 04:00 - 05:00 1.00 DRILL N DPRB 13,561.00 PROD1 INCREASINGLY STRUGGLE TO MAKE HOLE- DRILLED 19'WITHIN ONE HOUR. 05:00 - 06:10 1.17 DRILL N DPRB 13,561.00 PROD1 DRILLED AHEAD WITH SAME CHALLENGES THAN BEFORE, BUT MANAGE TO DRILL TO 13,500' DISCUSS WITH GEO TO STEER UP AND AIM FOR THE GAS OIL CONTACT(GOC)EARLIER THAN INITIALLY PLANNED.ALSO DISCUSS CHANGING OUT MUD AGAIN. 06:10 - 11:20 5.17 DRILL N DPRB 13,561.00 PROD1 START WIPER TO 3000' 20 BBLS PILL HAD A SLIGHT INCREASE IN CUTTINGS 11:20 - 11:35 0.25 DRILL N DPRB 13,561.00 PROD1 LOG TIE IN 11:35 - 12:45 1.17 DRILL N DPRB 13,561.00 PROD1 CORRECT DEPTH+9'AND RIH TO CONTINUE DRILLING 12:45 - 14:25 1.67 DRILL N DPRB 13,561.00 PROD1 OBTAIN SPR'S 'PUMP#1 PUMP#2 0.5 BPM= 1730 PSI 0.5 BPM= 1750 PSI 1.0 BPM=2350 PSI 1.0 BPM=2320 PSI 1.6 BPM=3380 PSI 1.7 BPM=3380 PSI BACK ON BOTTOM DRILLING FREE SPIN=3480 PSI @ 1.63 BPM PUMPRATE= 1.6313PM/CIRC PRESSURE= 3550 PSI WOB=1.73K LBS/ROP=75 FPH/ECD= 11.05 PPG MW IN=8.62 PPG/MW OUT=8.57 PPG IAP=959 PSI OAP=790 PSI Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 31 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PBC Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA •UWI:/Lat:070017'55.857'7 Long: ±0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations • (hr) (ft) 14:25 - 18:00 3.58 DRILL N DPRB 13,561.00 PROD1 KEEP WORKING COIL WITH VERY LITTLE PROGRESS.ACHIEVE 50' IN 3HRS. FREE SPIN=3480 PSI @ 1.63 BPM PUMPRATE= 1.63 BPM/CIRC PRESSURE= 3523 PSI WOB= 1.15K LBS/ROP= 10-30 FPH/ECD= • 11.03 PPG MW IN=8.65 PPG/MW OUT=8.58 PPG IAP=946 PSI OAP=728 PSI 18:00 - 20:00 li 2.00 DRILLN . _ PROD1 CONTINUE DRILLING AHEAD. 20:00 - 22:30 2.50 DRILL P PROD1 INITIATE MUD CHANGE-PUMP AWAY HIGH VIS-PILL FOLLOWED BY NEW 8.5PPG MUD (KLASTOP 3%, LOTORQ 2%, LUBE 776 2%, LSRV>50KcPs). MEANWHILE PICK OFF BOTTOM AND PULL UP FOR A SHORT WIPER TO 12,700'(COULD NOT GO MUCH HIGHER DUE TO 1,000' LIMITATION AS PER FLUID MANAGEMENT POLICY). 22:30 - 23:30 1.00 DRILL P PROD1 BASK TO TD= 13,612',TRYING TO DRILL AHEAD_ STILL STRUGGLING TO OVERCOME WEIGHT TRANSFER ISSUES AND HYDRAULIC • LOCK-UP. KEEP WORKING COIL,BUT ACHIEVE 0 FT DRILLING PROGRESS IN 1HR. 23:30 - 00:00 0.50 DRILL P PROD1 DISCUSS WAY FORWARD ON RIG. NEW MUD HAS NOT SHOWN ANY IMPROVEMENT (...YET...).IN ADDITION IT APPEARS THAT AGITATOR IS NOT WORKING ANYMORE(NO INDICATION FOR ANY VIBRATIONS). CALL CTD SUPERINTENDANT AND AGREE ON PLAN FORWARD: 1)COMPLETE MUD CHANGE 2)TRIP FOR NEW AGITATOR • 3)PUMP STEEL LUBE PILL 4)CONSIDER PUMPING ALPINE BEEDS 4 AND/OR HIGH LUBRICANT PILL. 5/26/2012 00:00 - 00:30 0.50 DRILL P PROD1 'NEW MUD ALL AROUND TO SURFACE AND TAKING RETURNS BACK INTO PITS. 00:30 01:15 0.75 DRILL ! P ! PROD1 CONTINUE WORKING COIL-NO SUCCESS, CANNNOT OVERCOME WEIGHT TRANSFER ISSUES AND HYDRAULIC LOCK-UP.KEEP WORKING COIL, BUT CAN NOT OBSEVRE ANY DRILLING PROGRESS. ---------- -- 01:15 - 01:20 0.08 DRILL j P PROD1 DECIDE TO POOH.FLOWCHECK WELL- ACHIEVE GOOD NOW FLOW,WELL IS STATIC. MEANWHILE COMMENCE MIXING NEW HIGH VIS PILL. 01:20 - 02:45 1.42 DRILL P PROD1 POOH WITH BHA#14 TO CHANGE OUT AGITATOR. 02:45 - 02:55 0.17 DRILL P PROD1 PULL TO WINDOW.CLOSE EDC AND FLOWCHECK WELL.ACHIEVE GOOD NO-FLOW,WELL IS STATIC. 02:55 - 03:30 0.58 DRILL P PROD1 POOH FROM WINDOW AT 65 FT/MIN(70%OF FLUID VELOCITY IN 7"). Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 32 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°4014.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 03:45 0.25 DRILL P PROD1 ****COMPLEX KICK WHILE TRIPPING DRILL PERFORM KICK WHILE TRIPPING DRILL: SIMULATE INCREASE IN RETURNS WHILE POOH.STOP, SHUT IN PUMPS AND FLOWCHECK WELL. FLOW IS CONFIRMED. INCREASE PACK-OFF PRESSURE, SHUT IN HCR AND LINE UP TO CHOKE. SIMULATE THAT PACK-OFFS ARE LEAKING, SO DECIDE TO CLOSE ANNULAR(BAG). NOTICE THAT KOOMEY-PRESSURE HAS DROPPED AND ACCUMULATOR CHARGE PUMPS FAIL TO RE-PRESSURIZE SYSTEM, SO DECIDE TO CLOSE UPPER RAMS WITH NITROGEN-RESERVE.WSL GIVES ORDER TO LOCK-IN UPPER RAM MANUALLY,AS ALARM IN MOTOR ROOM GOES OFF(NO DRILL). 03:45 - 04:30 0.75 DRILL P PROD1 MUD PUMP#1 PACKINGS WEEP SLIGHTLY AND NEED TO GET TIGHTENED UP. DROP PUMPRATE AND MOVE TO MP#2 SO MP#1 CAN BE WORKED ON. 5 MINUTES LATER ALSO PACKINGS ON MP#2 START WEEPING. IGO BACK TO MP#1. DUE TO THE PUMP BREAKS, DECIDE TO RUN BACK IN HOLE TO 10,000FT/HR TO INCREASE OUT-RATE FOR BETTER HOLE CLEANING. RIH AT—70 FT/MIN TO 10,000 FT AND SEE 4.3BPM RETURNS. AT 10,000FT TURN AROUND AND START POOH AGAIN. MP#1 PACKINGS START WEEPING AGAIN,SO STOP AND SWITCH BACK TO MP#2. 04:30 - 07:10 2.67 DRILL P PROD1 KEEP POOH ON MP#2 AND SEE A SUBSTANTIAL AMOUNT OF CUTTINGS COMING BACK OVER THE SHAKERS. PUMP AT 3.85BPM,3,552 PSI CIRC I PRESSURE AND PULLING AT AT 65 FT/MIN (70%OF FLUID VELOCITY). IA-972 PSI,OA-726PS1. 07:10 - 07:30 0.33 DRILL P PROD1 100'JOG BACK IN HOLE TO 500' PUH TO 200'AND FLOW CHECK THE WELL HOLD PJSM TO LD&PU THE BHA GOOD NO FLOW, PU THE INJECTOR FOR VISUAL ON SLICK BHA AND POOH 07:30 - 08:40 1.17 DRILL P ! PROD1 REMOVE INJECTOR FROM AND LD THE BHA BHA OOH,BIT INFO-PILOT MILL HAS 1 CHIPPED BUTTON AND SEVERAL BROKEN ON THE GAUGE WHILE CLOSING THE ANNULAR TO BLOW DOWN THE BHA ANNULAR LIGHT ON THE RIG FLOOR BOP PANEL DID NOT ELUMINATE BUT THE MOTOR MAN CONFIRMED THE ANNULAR HAD CLOSED AT THE KOOMEY. FINISH LYING DOWN THE BHA THEN CHECK 4- L THE LIGHT Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 33 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12.00:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°1755.857"7 Long: 0148°40'14.316"W Active Datum: ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 108:40 - 08:50 0.17 DRILL P PROD1 LIGHT WAS FINE,CHECK THE PRESSURE SWITCH FOR THE LIGHT AND THE LITTLE FILTER BEFORE THE SWITCH WAS PLUGGED.CLEANED FILTER AND LIGHT WORKS,TOOL PUSHER IS GOING TO FILTER THE HYDRAULIC FLUID IN THE TANK 08:50 - 09:10 0.33 DRILL P PROD1 PJSM TO MU THE BHA 09:10 - 09:40 0.50 DRILL P PROD1 MU THE BHA 09:40 - 09:50 0.17 DRILL P PROD1 PT THE QTS 09:50 - 12:15 2.42 DRILL P PROD1 RIH,SHALLOW HOLE TEST AGITATOR,GOOD TEST 12:15 - 12:40 0.42 DRILL P PROD1 LOG TIE IN 12:40 - 14:05 1.42 DRILL P PROD1 'CORRECT DEPTH-9'AND CONTINUE RIH TO 1TD I 14:05 - 16:15 2.17 DRILL P PROD1 TAG BOTTOM MADE A COUPLE OF FEET THEN STACKED OUT AGITATOR DOES NOT APPEAR TO BE WORKING, NO VIBRATION ON MWD AND WE CANNOT SLIDE. PU AND SHUT DOWN THE PUMP, RIH AND TAG WITHOUT ANY PROBLEM,WOB SHOWS 5.5K. START PUMP AND IT DRILLS OFF BUT WON'T SLIDE. PU AND RIH SLOW FROM-10 ABOVE TD AND JUST STACKS OUT,SHUT DOWN PUMP AND NO MOVEMENT PU AND TRY VARIOUS PUMP RATES& SPEEDS TO TRY AND DRILL 16:15 - 16:40 0.42 DRILL P PROD1 NOT MAKING ANY PROGRESS,MOVE TOWARDS MIXING STEEL LUBE PILL BUT IT IS TOO THICK TO MIX ON THE RIG.SEND TRUCK WITH MUD ON IT BACK TO MI AND MIX AT THE PLANT. IN THE MEAN TIME WE ARE GOING TO MIX A 70 BBL ALPINE BEAD PILL TO SEE IF BEADS WILL HELP OUR SLIDE ISSUES.WAIT FOR OPS NOT FROM ODE TO PUMP BEADS 16:40 - 16:50 0.17 DRILL P PROD1 RECEIVED OPS NOTE,MIX 70 BBL PILL 17:30 - 18:00 0.50 DRILL P PROD1 16:50 - 17 30 0.67 DRILL P PROD1 START PUMPING BEADS DOWN THE COIL BEADS AT THE BIT,PU FOR A BHA WIPER THEN TRY TO DRILL 20 BBLS OUT NOT MUCH HAPPENING, PU AND TRY SPUDDING INTO BOTTOM PU AND TRY TO PUT MINIMAL WEIGHT AND I WE ARE STARTING TO MAKE HOLE 18:00 - 21:00 3.00 DRILL P PROD1 MANAGE TO MAKE HOLE BY PUSHING,AT SLOW PUMP RATE,THE COIL WITH INJECTOR CLOSE TO TD,THEN STOP AND STRETCH COIL BY INCREASEING PUMPRATE TO-1.5 BPM.ONCE BIT IS ENGAGED AND IS DRILLING OFF,FOLLOW WITH COIL IN 0.1 FT INCREMENTS. TEDIOUS DRILLING, BUT MAKE HOLE AND DRILL-4 FT/HR. 21:00 - 21:40 0.67 DRILL P PROD1 MIX AND PUMP 20BBLS HIGH LUBRICANT PILL. USE 1 DRUM OF"LOTORQ"FOR MIXING WHICH LUBRICATES THE PILL TO 20%. • Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 34 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project: Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date!Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT 1 NPT Depth Phase Description of Operations (hr) (ft) 21:40 - 22:45 1.08 DRILL P PROD1 HIGH LUBRICANT PILL COMING OUT OF NOZZLE.SLB CTD DRILLER NOTICES AN IMPROVEMENT TO THE SLIDING/DRAG OF THE COIL AS PUW DROP FROM—50K TO —30K. DECIDE TO LUBRICATE UP THE WHOLE MUDSYSTEM WITH 4 DRUMS OF LUBE 776 TO 5%. 422:45 00:00 1.25 DRILL P ' PROD1 CONTINUE DRILLING,HOWEVER SEE ROP DROPPING TO—2 FT/HR. 5/27/2012 00:00 - 01:30 1.50 DRILL P PROD1 TRUCK WITH 8OBBLS OF STEEL LUBE PILL ARRIVES ON LOCATION. PICK UP FROM 13,634'TO 10,200'FOR PUMPING STEEL PILL. 01:30 - 01:35 0.08 DRILL P PROD1 STOP AT WINDOW AND OPEN EDC 01:35 - 02:10 0.58 fi DRILLP I PROD1 PULL TO 10,200'(AS PER OPS NOTE)AND !. .. _ tSTOP. 02:10 - 03:40 1.50 DRILL P PROD1 'MM IN-0 BBLS/MM OUT-0 BBLS START PUMPING 15BBLS RED-DYED PILL AHEAD AT 3.50BPM. MM IN- 15.0 BBLS/MM OUT- 15.3 BBLS LINE UP TO TRUCK AND START PUMPING --7OBBLS OF 10%"STEEL LUBE"PILL DOWN THE COIL. MM IN-85.7 BBLS/MM OUT-87.7 BBLS EMPTY OUT 15 BBLS OF RED-DYED PILL l FROM PIT#4. MM IN-100.5 BBLS/MM OUT-101.9 BBLS PIT#4 IS EMPTY,START DISPLACING PILL OUT OF COIL WITH MUD AND PUMP ADDITIONAL COIL VOLUME TO CLEAN COIL. MM IN-220 BBLS/MM OUT-223 BBLS DISPLACEMENT IS COMPLETE AND ONE FULL COIL-VOLUME HAS BEEN PUMPED. SLOWLY START RUNNING IN HOLE, REDUCING PUMP RATE TO 2.1 BPM. 03:40 - 03:55 0.25 DRILL P PROD1 RUN TO WINDOW,CLOSE EDC. 03:55 - 04:15 0.33 i DRILL P PROD1 CONTINUE RIH. MM IN-274.7 BBLS/MM OUT-286.6 BBLS SEE RED-DYED PILL RETURNS ON SHAKER -117.7BBLS EARLY!!! • PULL BACK INTO THE WINDOW AND OPEN I EDC.CONTINUE CIRCULATING AT 2.0 BPM. 04:15 - 05:00 0.75 DRILL P PROD1 CIRCULATE OUT"RED MUD"OVER BOARD INTO CUTTIGNS BOX. 05:00 - 05:20 0.33 ' DRILL P PROD1 MM IN-341 BBLS/MM OUT-351 BBLS ' STILL ONLY SEEING"RED MUD"COMING BACK. MIXING HIGH VIS PILL 05:20 - 05:40 0.33 1 DRILL P PROD1 MM IN-377 BBLS/MM OUT-387 BBLS FIRST INDICATION(SMELL)THAT STEEL LIBE PILL IS RETUNING. 05:40 - 07:30 1.83 DRILL P PROD1 MM IN-384 BBLS/MM OUT-394 BBLS 394BBLS ON OUT MICROMOTION.SHOUDL SEE STEEL LUBE PILL IN RETUNS NOW (393BBLS SURFACE TO SURFACE VOLUME). Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 35 of 36 Operation Summary Report Common Well Name:C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:5/4/2012 End Date: X3-011 K1-C(2,117,744.00) I Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase(ft) Description of Operations (hr) 07:30 08:05 0.58 DRILL P PROD1 START PUMPING USED MUD DOWN HOLE TO DISPLACE STEEL LUBE PILL 08:05 - 08:55 0.83 DRILL P PROD1 THE MUD IS STARTING TO CHANGE BACK TO IT'S NORMAL COLOR, PULL A SAMPLE, SHUT DOWN THE PUMP AND CHECK LUBE PERCENTAGE 08:55 - 09:00 0.08 DRILL P PROD1 `MUD ENGINEER SAYS THE MUD IS BACK TO 'NORMAL SO WE ARE KEEPING THE MUD. CLOSE THE EDC AND RIH TO TIE AND II CONTINUE DRILLING 09:00 - 09:15 0.25 DRILL P r PROD1 TIE IN 09:15 - 10:35 1.33 DRILL P PROD1 CORRECT DEPTH+3'AND RIH 10:35 - 11:45 1.17 DRILL P PROD1 STACKING WEIGHT AT 13616', REDUCE PUMP RATE AND CONTINUES TO STACK SHUT DOWN PUMP AND PU TO UP WEIGHT AND RIH TAG BOTTOM AT 13627', BRING PUMPONLINE 'AND SEE IF WE CAN DRILL 11:45 - 13:20 1.58 DRILL P PROD1 SEVERAL ATTEMPTS TO DRILL MORE HOLE HAVE FAILED.GEO SAYS TOWN IS READY TO CALL IT QUITS.CALL ODE AND WE ARE DONE.POOH AND TIE IN 13:20 - 13:30 0.17 DRILL P PROD1 'LOG TIE IN 13:30 - 15:00 1.50 DRILL P PROD1 CORRECT DEPTH+2' 15:00 - 15:05 0.08 DRILL P PROD1 TAG BOTTOM AT 13,628'MD/8,954'TVD ss. I P11 AND CONFIRM TAG AND TAG AT SAME DEPTH.ADD BEADS TO LINER PILL AND PUMP 20 BBL PILL 15:05 - 15:45 0.67 DRILL P I j PROD1 ONLINE WITH LINER PILL '15:45 - 15:55 0.17 DRILL P PROD1 2 BBLS LINER PILL OUT, SHUT DOWN TO FLOW CHECK WELL TO POH 15:55 - 17:10 1.25 DRILL P PROD1 GOOD NO-FLOW CHECK POOH LAYING IN LINER PILL WITH BEADS 17:10 - 17:20 0.17 DRILL P PROD1 OPEN EDC AND FLOW CHECK WELL 17:20 - 18:15 0.92 DRILL P ' PROD1 GOOD NO-FLOW CHECK,POOH PUMPING AT MAX RATE TO SURFACE I Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 36 of 36 Operation Summary Report Common Well Name: C-12 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 5/4/2012 End Date: X3-011 K1-C(2,117,744.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor NORDIC CALISTA UWI:/Lat:070017'55.8577 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (ft) 18:15 - 18:40 0.42 t DRILL P PROD1 ***SIMULATE KWT DRILL*** STOP POOH AND SHUT DOWN PUMP TO MONITOR FLOW,WE HAVE FLOW.DRILLER IS SHUTTING THE WELL IN AND THE HCR WAS FUNCTIONED BUT DID NOT CLOSE AND THE MANIFOLD PRESSURE IS DROPPING. DRILLER ASKED THE MOTOR MAN WHAT WAS HAPPENING AND HE REPLIED THAT THERE WAS A FAILURE IN THE SYSTEM AND SIMULATED PUTTING THE LEVER IN THE NEUTRAL POSITION AND THE KOOMEY STARTED BUILDING PRESSURE AT THIS POINT THE DRILLER INSTRUCTED THE FLOOR HAND TO MANUALY CLOSE THE 3-1/8" VALVE ON THE CHOKE LINE AND THE WELL WAS SHUT IN AND PRESSURES WERE MONITORED.AT THIS POINT IT WAS SIMULATED THAT THE RIG LOST POWER AND THE PACK OFFS STARTED LEAKING, THE CTS OPERATOR USED HIS EMERGENCY BACK UP HAND PUMP AND INCREASED THE PACK OFF PRESSURE.THERE WAS A 100 PSI INCREASE ON THE WELLHEAD PRESSURE AND THE CHOKE MANIFOLD WAS PRESSURED UP TO EQUALIZE THE PRESSURE AND THE 3-1/8"VALVE WAS OPENED AGAINST A CLOSED CHOKE.AT THIS POINT THE DRILLERS METHOD WAS USED TO CIRCULATE THE INFLUX OUT. DRILL WAS CONCLUDED WITH AN AAR. 18:40 - 19:00 0.33 DRILL P PROD1 STOP AT 9988'BIT DEPTH AND PAINT A YELLOW EOP FLAG FOR 9913' STOP AT 8030'BIT DEPTH AND PAINT A WHITE EOP FLAG FOR 7955' 19:00 - 21:30 2.50 DRILL P PROD1 CONTINUE POOH TO 100'."JOG"BACK TO 175'AND FLOW CHECK WELL.OBTAIN GOOD NO-FLOW,WELL IS STATIC. 21:30 - 22:00 0.50 DRILL P PROD1 POP OFF INJECTOR,STAND BACK TO SIDE AND LAY DOWN DRILLING BHA(BHA#14). FROM THIS POINT, REPORTING IS CONTINUES UNDER THE CON-EVENT. Printed 6/18/2012 10:53:34AM North America -ALASKA- BP Page 1 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type: COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:0O:OOAM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W • Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/27/2012 22:00 - 22:45 0.75 CASING P RUNPRD PREPARE FOR PUMPING SLACK OUT OF COIL. MU 2 JOINTS OF 2-1/16"CSH AND STAB ON INJECTOR. 22:45 - 22:55 0.17 CASING P RUNPRD TEST QTS TO 300 PSI/5MINS AND 3,500 PSI/ 5MINS-ACHIEVE GOOD PRESSURE-TEST. 22:55 - 23:15 0.33 CASING P RUNPRD PUMP-40BBLS OF FRESH WATER AT 4.5 BPM,FOLLOWED BY COIL VOLUME OF MUD TO MOVE SLACK OUT OF E-LINE CABLE. 23:15 - 23:50 0.58 CASING P RUNPRD POP OFF INJECTOR AND CUT OFF 165' CABLE.PREPARE TO CUT OFF CTC,BUT WSL STOPS JOB DUE TO SLACK LEFT IN COIL. CALCULATED SLACK LEFT IN COIL:HAD 15,782'E-LINE CABLE INSIDE COIL,CUT OFF .165'WHICH MEANS THERE IS STILL 15,617' • LEFT IN COIL.COIL LENGTH IS 15,472'SO THERE IS STILL 145'SLACK LEFT INSIDE COIL.HOWEVER HAVE ONLY 4x JOINTS (121.96')OF 2-1/16"CSH. 23:50 - 00:00 0.17 CASING P RUNPRD STAB INJECTOR BACK ON AND TRY AGAIN l PUMPING OUT SLACK-NEED ADDITIONAL —25'MORE ELINE OUT OF THE COIL 5/28/2012 01:30 - 02:00 0.50 CASING RUNPRD MAKE UP BTT COIL TUBING CONNECTOR (CTC). PULL-TEST TO 40K LBS. 00:00 - 00:45 0.75 CASING RUNPRD TRY PUMPING OUT SLACK AGAIN.PUMP 55BLS FRESH WATER FOLLOWED BY MUD WITH TWO PUMPS AT 4.5 BPM AND 4,113 PSI CIRC PRESSURE. 00:45 - 01:30 0.75 CASING RUNPRD POP OFF INJECTOR AND CHECK FOR SLACK -ONLY GAINED FURTHER 2FT.DECIDE TO CALL BAKER FISHING&ARCTIC PIPE TO GET ADDITIONAL 2x JOINT SENT OUT. CUT OFF CTC CONNECTOR AND 13'OF COIL. 02:00 - 03:15 1.25 CASING RUNPRD PRESSURE TEST BTT CTC TO 200PSI/5MIN AND 3,500PSI/5MIN-ACHIEVE GOOD TESTS. BLEED OFF PRESSURE. MEANWHILE THE ADDITIONAL 2-1/16" CSH-JOINTS ARRIVE. 03:15 - 04:00 0.75 CASING RUNPRD MAKE UP BALL CATCHER-SUB TO CTC AND STAB ON INJECTOR. DROP 3/4"DRIFT BALL INTO REEL. 04:00 - 04:45 0.75 CASING RUNPRD PUMP ROUND THE 3/4"DRILL BALL WITH 84.1 BBLS-TOOK SOME TIME TO GET THE BALL GOING,AND WENT OVER GOOSENECK AT —71 BBLS. 04:45 - 06:45 2.00 CASING RUNPRD PICK UP INJECTOR AND RECOVERE 3/4" DRIFT BALL FROM CATCHER SUB 06:45 - 07:10 0.42 CASING RUNPRD PJSM TO MU LINER 07:10 - 07:15 0.08 CASING RUNPRD VERIFY JOINT COUNT AND JEWELRY WITH TP, DRILLER AND BTT HAND • 07:15 - 09:25 2.17 CASING RUNPRDMU LINER AND DRIFTING EVERY 1 CONNECTION Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 2 of 11 Operation Summary Report Common Well Name: C-12 AFE No Event Type:COM-ONSHORE(CON) Start Date:5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:00:OOAM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase I Description of Operations (hr) (ft) 09:25 - 10:40 1.25 CASING RUNPRD 32 JTS 1000'OF LINER RAN,FILL LINER WITH WATER THEN CONTINUE gUNNING PIPE 10:40 - 12:50 2.17 CASING RUNPRD 64 JTS 1000'OF LINER RAN, FILL LINER WITH WATER THEN CONTINUE RUNNING PIPE 12:50 - 13:00 0.17 CASING RUNPRD 96 JTS 1000'OF LINER RAN,FILL LINER WITH WATER THEN CONTINUE RUNNING PIPE 13:00 - 14:00 1.00 CASING RUNPRD LINER RAN,MU SELBRT&6 JTS 2-1/16"CSH 14:00 14:30 0.50 CASING RUNPRD PU INJECTOR AND MU TO LINER 14:30 - 14:50 0.33 CASING RUNPRD PT QTS F 14:50 - 16:25 1.58 CASING RUNPRD RIH WITH LINER 16:00 CALL OUT CMT CREW TO RU AND PT TREATING LINE IN MICRO MOTION IS HAVING SOME ISSUES AND MIGHT NEED TO BE CHANGED OUT 16:25 - 17:00 0.58 CASING RUNPRD STOP AT WINDOW FLAG AT 11458'AND CORRECT OUR DEPTH-12'TO 11446.0' 17:00 - 17:35 0.58 CASING RUNPRD 13315'STACKED OUT,PtJ ANr)TRY TO RI IN_ LINER TO BOTTOM TAG AGAIN AT 13560'PRESSURES HAVE BEEN CLIMBING,WE ARE AT 2200 PSI AT 0.4 BPM TAG AGAIN AT 13592'PRESSURE AT 0.75 L I BPM IS 2390 PSI GETTING A LITTLE BETTER 17:35 - 17:45 0.17 CASING RUNPRD TAG TD AT 13622', PU TO CONFIRM AND STACK 10K DOWN TO 13625' 17:45 - 17:50 0.08 CASING RUNPRD PJSM TO DROP 5/8"BALL TO RELEASE FROM LINER 17:50 - 18:05 0.25 CASING RUNPRD REEL IS LOCKED OUT AND PRESSURES ARE BLED OFF. DROP BALL TO RELEASE LINER PU WEIGHT=50K 13602' 18:05 - 18:55 0.83 CASING RUNPRD BALL IS LAUNCHED AND ROLLING 18:55 - 19:30 0.58 CASING RUNPRD 55BBLS PUMPED AND SEE PRESSURE INCREASE TO4,120PSI. BALL IS ON SEAT. PU TO 9'TO 13,615 AND SEE BREAKOVER AT 35K LBS. _ RUN BACK IN HOLE TO 13,626'. • 19:30 - 22:00 2.50 CASING RUNPRD LINE UP CEMENTERS,REVIEW CEMEMTING NUMBERS AND CHANGE OUT IN-MICROMOTION IN REEL HOSE. 22:00 - 22:30 0.50 CASING RUNPRD PRESSURE-TEST IN-MICROMOTION TO 300PS1/5MINS AND 4,000PSI/5MINS- ACHIEVE GOOD PRESSURE-TEST. LINE UP AND FLOW THROUGH.SEE RETURNS AFTER 4BBLS. IN MICROMOTION SEEMS TO BE TRACKING OUT MICROMOTION.PUMP AT VARIOUS RATES. 22:30 - 23:00 0.50 ' CASING RUNPRD PREAPRE FOR CHANGING FLUIDS FROM MUD TO KCL. 23:00 - 00:00 1.00 CASING RUNPRD START PUMPING 1%XS KCL DOWN COIL, TAKING MUD RETURNS OVERBOARD& EMPTYING OUT MUD PITS. PUMPING AT 2.17BPM ON IN-MM AND 2.20BPM ON OUT-MM WITH 3,457 PSI CIRC PRESSURE. Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 3 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type: COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project: Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations _ (hr) (ft) 5/29/2012 00:00 - 02:00 2.00 CASING P RUNPRD CONTINUE DISPLACING MUD WITH 1%XS KCL. PUMPING AT 2.47BPM WITH 3,325 PSI CIRC PRESSURE. NOTICE—10BBLS/HR LOSSES WHILE CIRCULATING. 02:00 - 02:10 0.17 CASING P RUNPRD PUSH KCL TO CEMENTERS SO SLB CEMENTING CAN PREPARE FOR PRESSURE-TESTING. 02:10 - 03:00 0.83 CASING P RUNPRD CONTINUE DISPLACING MUD. MEANWHILE LINE UP TO SLB CEMENTING AND START LP-TEST ON THE SURFACE LINE TO 300PSI/5MINS-ACHIEVE GOOD TEST. 03:00 - 03:20 0.33 CASING P RUNPRD HAVE CIRCULATED NOW 400BBLS AND RETURNS ARE CLEANING UP.STOP CIRCULATING AND PERFORM HP-TEST ON THE CEMENTING SURFACE LINES TO 6,000PSI/5MINS.TEST AGAINST CLOSED INNER REEL VALVE(IN-MM IS ISOLATED)- _ 'ACHIEVE GOOD TEST,BLEED OFF. 03:20 - 04:00 0.67 CASING P RUNPRD LINE UP TO CONTINUE CIRCULATING AT 2.5BPM AND 2.700PSI WHILE WAITING FOR THE CONTAM-PILL TRUCK TO ARRIVE. MEANWHILE HOLD PJSM WITH ALL CREWS INVOLVED. 04:00 - 04:30 0.50 CASING P RUNPRD TRUCK WITH CONTAM PILL HAS ARRIVED SO REQUEST SLB CEMENTERS TO START BATCH-MIXING 15.8PPG MUD. KEEP CIRCULATING KCL AT 2.3BPM,2,395PS1 CIRC PRESSURE.CURRENT LOSSES ARE —9BBLS/HR. REDUCE RATE TO 1.5 BPM(CIRC PRESSURE 1,366PS1)AND LOSSES DROP TO —6BBLS/HR. 04:30 - 04:45 0.25 CASING P RUNPRD MUD-SCALED CEMENT AT 15.8PPG. 'THICKENING TIME IS 04:30HRS AT 04:30AM 04:45 - 05:00 0.25 CASING P RUNPRD STOP CIRCULATING KCL AND BRING SLB PUMPS ONLINE.ZERO MICROMOTIONS AND PUMP 12.5BBLS OF 15.8PPG CEMENT INTO COIL AT 1.46BPM.S/I SLB CEMENT PUMPS. 05:00 - 05:10 0.17 CASING P RUNPRD WASH AND BLOW DOWN LINES TO SLB CEMENTING TRUCK. LINE UP AND DISPLACE CEMENT DOWN COIL WITH 1%KCL W 2PPG BIOZAN AT 2.1 BPM. MM IN-2.12BPM/MM OUT-1.93BPM/CIRC P -3,728PSI. 05:10 - 05:25 0.25 CASING P RUNPRD CEMENT IS GOING OVER THE GOOSENECK, CIRC PRESSURE IS COMING DOWN. MM IN-21.7BBLS/MM OUT-19.2BBLS/CIRC P-2,029PS1.TAKING APPROX 1OBBLS/HR LOSSES. 05:25 - 05:30 0.08 CASING P RUNPRD CIRC PRESSURE STABILIZES AT MM IN- 43.4BBLS/MM OUT-38.8BBLS/CIRC P- 2,615PSI. STILL TAKING LOSSES OF APPROX 10BBLS/HR. Printed 6/18/2012 10:55:32AM North America-ALASKA- BP Page 4 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type:COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:30 - 05:43 0.22 CASING PRUNPRD HAVE DISPLACED CEMENT WITH 56.866 LS BIOZAN,WHICH LEAVES 2BBLS ABOVE THE SELBRT.S/I PUMPS PU 13'TO 13,600'AND PUMPED FURTHER 5BBLS.THIS EXHAUSTS 2BBLS CEMENT+ 3BBLS BIOZAN. RUN BACK IN HOLE AND STAB INTO DEPLOYMENT SLEEVE(SLACK OFF WEIGHT AT 13,625.80'). PRESSURE UP COIL TO 2,500PSI TO SHEAR OFF THE LINER WIPER PLUG(LWP). 05:43 - 06:00 0.28 CASING P RUNPRD ZERO IN-MICROMOTION AND START MOWN WP. AT PU2.2BBLSPINGDOF IN ZERO OUT-MICROMOTION.CPIRC P=2,885PSI RAISING TO 3,100PSI. AT 12.9BBLS PUMPED,SEE SHARP PRESSURE SPIKE TO 3,400PSI-LWP LANDED IN LATCH COLLAR. HAVE RECEIVED 9.5BBLS RETURNS ON OUT-MICROMOTION. 06:00 - 06:15 0.25 CASING _ P RUNPRD OPEN UP BAKER CHOKE,BLEED OFF PRESSURE AND FLOW-CHECK FLOATS. OBSERVE PENCIL-THICK STREAM COMING BACK-CANNOT ACCEPT FLOWCHECK. CALL CTD SUPERINTENDENT AND DISCUSS WAY FORWARD. 06:15 - 06:30 0.25 CASING P RUNPRD PUMP DOWN COIL TO PRESSURE UP ABOVE LATCH COLLAR. AT 14.0BBLS PUMPED ON IN-MICROMOTION, SEE 3,400PSI.PRESSURE IS BLEEDING DOWN.REPEAT WITH SAME RESULTS. 06:30 - 06:40 0.17 CASING P RUNPRD PUMP DOWN COIL TO PRESSURE UP ABOVE LATCH COLLAR. AT 14.9BBLS PUMPED ON IN-MICROMOTION, SEE 3,400PSI.CLOSE INNER REEL VALVE TO ISOLATE SURFACE LINES FROM DOWNHOLE. SEE PUMP-PRESSUER STEADY,BUT CIRC P DROPPING.HAVE PROVEN DOWNHOLE LEAK. 06:40 - 07:20 0.67 CASING P RUNPRD CIRC PRESSURE AT 1,245PSI,PUMP PRESSURE AT 2,955PSI. 07:20 - 08:00 0.67 CASING P RUNPRD UNSTING FROM LINER,PUMP 5BBLS OF BIO ON TOL.TOP OF CEMENT IS AT 9.712'POOH TO 9500'PUMPING PIPE DISPLACEMENT 9500' RIH TO CONTAM 2 BBLS OF CMT AT 2:1 RATIO 08:00 - 08:30 0.50 CASING P RUNPRD RIH CONTAMINATING CMT TO THE TOL 1.0 BPM @ 13 FPM 08:30 - 10:20 1.83 CASING P RUNPRD POOH AS PER WELL PLAN MAINTAINING 0.5 BPM RETURN RATE 10:20 - 10:40 0.33 CASING P RUNPRD FLOW CHECK WELL 110:40 - 11:00 0.33 CASING P RUNPRD TAG UP, REMOVE INJECTOR AND LD LINER BHA 11:00 - 11:30 0.50 CASING P RUNPRD LOAD OUT SELBRT BAKER HAND NOTICED A FAIRLY DEEP GOUGE IN THE BODY OF THE SEAL ASSEMBLY POSSIBLY FROM STINGING BACK INTO THE SELBRT AFTER THE SIDE EXHAUST. Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 5 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type:COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA 'UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING(4,62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 11:40 0.17 CASING P RUNPRD HOLD PJSM TO CHANGE CTC'S AND MU THE 1 3.80"CLEAN OUT BHA 11:40 - 13:00 1.33 CASING P RUNPRD CUT OFF LINER RUNNING CTC AND MU MILLING CTC PT CTC,GOOD PT MU MILLING BHA 13:00 - 15:00 2.00 CASING P RUNPRD PT QTS AND RIH 14:50 CALL FROM SLB LAB OUR CMT IS AT 500 PSI COMPRESSIVE STRENGTH _ 15:00 - 15:35 0.58 CASING P RUNPRD 9200'INCREASE PUMP RATE AND PUMP A 40 BBL 15:35 - 16:30 0.92 CASING P RUNPRD TAG TOL a 10317'. BIO AT THE BIT,POOH SLOW UNTIL BIO IS OUT THEN CHASE OOH 16:30 - 17:00 0.50 F CASING P RUNPRD GETTING DELUTED CMT BACK TAKE RETURNS TO THE CUTTINGS BOX 17:00 - 17:40 0.67 CASING P RUNPRD STOP TO UNLOAD CUTTINGS BOX AND BRING ON MORE KCL DENSITY STARTED AT 8.41 PPG AND MAXED OUT AT 8.51 PPG 17:40 - 18:45 1.08 CASING P RUNPRD CONTINUE POOH. PJSM ON BREAK DOWN OF BHA. FLOW CHECK WELL AT SURFACE, NO FLOW. PULL TO SURFACE. 18:45 - 20:00 1.25 CASING P RUNPRD POP OFF INJECTOR. LD BHA. MILL GAUGE AT 3.80"GO,3.79"NO-GO. MOBILIZE BHA ! OFF OF RIG. 20:00 - 20:45 0.75 CASING P RUNPRD MU NOZZLE BHA. STAB ON TO INJECTOR, JET STACK OF CEMENT RETURNS. CLEAN HI-PRESSURE LINES AND MICROMOTION LINES OF POSSIBLE CEMENT CONTAMINATION. POP OFF AND STAND BACK INJECTOR. 20:45 - 22:30 1.75 CASING P RUNPRD CLEAR AND CLEAN FLOOR OF TONGS, TOOLS. MU SAFETY JOINT CROSSOVER. REPLACE DIES IN TONGS TO MAKE UP 1" CSH. 22:30 - 00:00 1.50 CONDHL P OTHCMP MU 1.75"CLEANOUT BHA FOR DEDICATED LINER CLEANOUT RUN. 1.75"MILL,BAKER XTREME MOTOR, BOWEN JARS, CIRC SUB, HYDRAULIC RELEASE,XO,1"CSH WORK .STRING. CONDUCT KICK WHILE TRIPPING DRILL WITH NEW ROUSTABOUT WORKING IN PIPE SHED, MOTORMAN OUTSIDE OF RIG. CREW RESPONSE GOOD;MU SAFETY JOINT WITH FOSV. MOTORMAN REPORTED TO KOOMIE UNIT,FLOORHAND REPORTED TO CELLAR. 5/30/2012 00:00 - 04:00 4.00 CONDHL ' P OTHCMP MU CLEANOUT BHA FOR DEDICATED 2-3/8" LINER: 1.75"MILL, BAKER XTREME MOTOR, BOWEN JARS,CIRC SUB,HYDRAULIC RELEASE,XO,114 JTS 1"CSH WORK STRING, XO, DISCONNECT, DUAL BACK PRESSURE VALVE,XO,XO,2 JTS 2-3/8"PH6,XO,QUICK CONNECT,XO, COIL CONNECTOR. STAB ON WITH INJECTOR, PT QUICK TEST SUB. 04:00 - 05:45 1.75 ' CONDHL P OTHCMP RIH WITH CLEANOUT BHA. 05:45 - 06:30 0.75 CONDHL P OTHCMP ENTER LINER TOP WITH 1.75"MILL. BIOZAN PILL TIMED TO EXIT BIT AS CLEANOUT OPERATIONS BEGIN. CLEANOUT LINER IN PREPARATION FOR LOGGING AND PERF RUNS. Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 6 of 11 Operation Summary Report Common Well Name: C-12 AFE No Event Type: COM-ONSHORE(CON) Start Date:5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT I NPT Depth Phase Description of Operations (hr) (ft) 06:30 - 07:20 0.83 CONDHL P OTHCMP 12875'SEEING SOME WEIGHT BOBBLES WHILE RUNNING IN HOLE, NO MOTOR WORK 12905'STACKING WEIGHT WITH NO MOTOR WORK. REDUCE RATE TO 0.75 BPM AND WEIGHT CAME BACK, LOOKS LIKE HYDRAULICS 13014'STACKING WEIGHT. PU AND TRY TO RIH, PU WT 38K 13350'WT CHECK=41K, CONTINUE RIH 07:20 - 07:25 0.08 CONDHL P OTHCMP 1TAG PBTD ON DEPTH WITH MOTOR WORK. PU WT IS 43K,TAG AGAIN TO CONFIRM 07:25 - 09:05 1.67 CONDHL P OTHCMP TAG AGAIN AT SAME DEPTH, POOH AT MAX RATE PAINTING EOP FLAGS FOR LOGGING RUN 09:05 - 09:30 0.42 CONDHL P OTHCMP DROP 1/2"BALL TO OPEN CIRC SUB FOR MORE RATE IN 7" 09:30 - 09:55 0.42 CONDHL P OTHCMP BALL DID NOT LAND AT CALCULATED VOLUME, POOH&RIH AT HIGH SPEEDS TO TRY AND FREE BALL UP IF ITS STILL IN THE REEL 09:55 10:20 0.42 CONDHL P OTHCMP BALL IS STILL IN THE REEL CONTINUE CIRC TO GET BALL OVER GOOSENECK 10:20 - 10:55 0.58 CONDHL P OTHCMP BALL IS OVER THE GOOSENECK 10:55 - 12:50 1.92 CONDHL P OTHCMP BALL ON SEAT AND SHEARED AT 3400 PSI, POOH CHASING BOTTOMS UP 12:50 - 13:15 0.42 CONDHL i P OTHCMP PJSM TO STBK CSH AND LD MILLING BHA 13:15 - 13:25 0.17 CONDHL P i OTHCMP FLOW CHECK WELL 13:25 - 13:45 0.33 CONDHL P OTHCMP GOOD NO-FLOW CHECK,TAG UP,REMOVE INJECTOR AND STBK CSH 13:45 - 16:15 2.50 CONDHL P OTHCMP STBK CSH&LD THE MILLING BHA 16:15 - 16:40 0.42 EVAL P OTHCMP CLEAR RIG FLOOR AND HOLD PJSM TO PU MEM LOG TOOLS AND MU LOGGING BHA 16:40 - 17:00 0.33 EVAL P OTHCMP LOAD LOGGING TOOLS ON THE RIG 17:00 - 17:55 0.92 EVAL P OTHCMP MU BHA 17:55 - 18:45 0.83 EVAL P OTHCMP *****VALVE DRILL WHILE MAKING UP LOGGING TOOLS***** DRILLER CALLED KICK DRILL TO COINCIDE WITH CHANGEOUT. GOOD RESPONSE TIME. ,WELL CLOSED IN. CONDUCT CHANGE OUT AND WALK AROUNDS. PJSM WITH INCOMING CREW ON BHA MU. 18:45 - 21:15 2.50 EVAL P OTHCMP CONTINUE TO MU LOGGING BHA. MU TO COIL TUBING CONNECTOR. STAB ON TO WELL,PRESSURE TEST QUICK TEST SUB. 21:15 - 22:30 1.25 EVAL P OTHCMP RIH WITH LOGGING ASSEMBLY TO 4700'. CONDUCT SHALLOW HOLE TEST, CORRELATE COIL AND LOGGING DEPTHS. CONTINUE TO RIH. 22:30 - 00:00 1.50 EVAL P OTHCMP COORDINATE WITH MCNL LOGGER. BEGIN LOGGING FROM 10,100'. TOP OF LINER FLAG CORRECTION-7'. CONTINUE WITH LOGGING. 5/31/2012 00:00 - 01:15 1.25 EVAL P OTHCMP COMPLETE LOGGING WHILE RIH TO PBTD OF 13,592'. PAINT TD FLAG FOR PERFORATION RUN. Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 7 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type:COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.8577 Long: 0148°4014.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:15 - 02:00 0.75 EVAL P OTHCMP MAKE LOGGING PASS WHILE POH TO 10,100'. LAY IN PERF PILL WHILE POH. PAINT FLAG FOR TOL. 02:00 - 04:00 2.00 EVAL P OTHCMP DISPLACE WELL TO CLEAN 1%KCL WHILE PARKED AT 9950'. 04:00 05.45 . 1.75 EVAL P OTHCMP CONTINUE TO DISPLACE WELL WHILE POH. PJSM ON LAYING DOWN BHA. FLOW CHECK _ 'WELL AT SURFACE 05:45 - 06:00 0.25 EVAL P ' OTHCMP POP OFF WITH INJECTOR. INSTALL SAFETY VALVE INTO SHEARABLE 2-3/16"PH-6 TO CONDUCT CREW CHANGE OUT. 06:00 - 06:30 0.50 EVAL P OTHCMP CREW CHANGE 06:30 - 07:00 0.50 EVAL P OTHCMP MOVE VAC TRUCKS TO PULL LIDS ON CUTTINGS BOX FOR SUPER SUCKER 07:00 - 07:20 0.33 EVAL P OTHCMP PJSM TO PULL CSN&LOGGING BHA 07:20 - 09:40 2.33 EVAL P OTHCMP START PULLING CSH 09:40 - 10:00 0.33 EVAL P OTHCMP SOURCE 5 STANDS FROM SURFACE HOLD PJSM TO BRING SOURCE TO SURFACE 10:00 - 10:20 0.33 , EVAL P OTHCMP LOAD OUT LOGGING TOOLS 10:20 - 10:45 0.42 EVAL P OTHCMP FUNCTION TEST BOPE FROM THE OPS CAB 10:45 - 11:05 0.33 EVAL P OTHCMP PREP FOR LAP TEST 11:05 - 11:25 0.33 EVAL ' P ' OTHCMP I START LAP TEST BRING PRESSURE UP FOR LOW PSI TEST 11:25 - 12:40 1.25 EVAL P OTHCMP PRESSURE HAS BLED OFF BELOW THE MINIMUM PRESSURE,PRESSURE UP TO 300 PSI AND RESTART LOW 12:40 - 14:30 1.83 EVAL P OTHCMP CANNOT ESTABLISH A LOW PT,BRING ON PUMP TO ESTABLISH INJECTION RATE WH PRESSURE IS CLIMBING AND THE IA IS AS WELL,SLOWLY ,SHUT DOWN PUMP AT 1250 PSI AND MONITOR WH&IA PRESSURES. IA PRESSURE IS CONTINUING TO CLIMB SLOWER THAN THE WHP IS BLEEDING OFF BRING WHP TO 2000 PSI TO ESTABLISH A LEAK RATE.2000 PSI SHUT DOWN THE PUMP, LEAK RATE IS LESS THAN 0.2 BPM. IA PRESSURE IS STILL CLIMBING BUT IS SLOWER THAT THEN BLEED OFF RATE OF THE WH,SUSPECT GUIBERSON PACKER IS LEAKING 14:30 - 16:00 1.50 EVAL P OTHCMP MWD&MCNL LOGS HAVE A DISCREPANCY STARTING AT 12900'. DISCUSS LOGS WITH MWD HAND AND SEND DATA TO TOWN 'LOAD PERF GUNS IN PIPE SHED 16:00 - 16:30 0.50 PERFOB P OTHCMP DEPTH SHIFT DOES NOT CHANGE THE PERF INTERVALS,CONTINUE OPS FOR RUNNING GUNS HOLD PJSM TO MU PERF GUNS 16:30 - 17:45 1.25 PERFOB P OTHCMP MU PERF GUNS 17:45 - 18:00 0.25 PERFOB P OTHCMP —VALVE DRILL WHILE MAKING UP PERF GUNS*** GOOD DRILL, SAFETY JOINT WAS MADE UP AND RAN ACROSS THE BOP'S IN 2 MIN, SIMULATED CLOSING THE UPPER COMBI RAMS AND CLOSING THE HCR Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 8 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type: COM-ONSHORE(CON) Start Date:5/14/2012 End Date: X3-011 K1-C(1,277,195.00) j - Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 ! Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations ' (hr) (ft) 18:00 - 21:15 3.25 PERFOB , P OTHCMP PJSM WITH NEW CREW ON MAKING UP PERFORATION ASSEMBLY. CONTINUE WITH MAKING UP GUNS AND FIRING HEAD PER PERFORATION SUMMARY. LEFT MESSAGE WITH AOGCC WITH UPDATE ON OPERATIONS AND POTENTIAL OF TESTING BOP BEGINNING AT 1800-2000 HRS ON FRIDAY EVENING. 21:15 - 21:45 0.50 PERFOB P OTHCMP STAB ON WITH INJECTOR. PRESSURE TEST QTS. GET MANUAL STRAP OF PITS. 21:45 - 00:00 2.25 PERFOB P OTHCMP RIH WITH PERFORATING BHA. FLAG FOR ENTERING LINER AT-4'. CONTINUE TO RIH WITH PERFORATION BHA. 6/1/2012 00:00 - 01:30 1.50 PERFOB P OTHCMP RIH WITH PERFORATION BHA._TAG PBTD AT '13593.76,CORRESPONDING TO UNCORRECTED PBTD OF MCNL LOG. PICK UP OFF BOTTOM TO 13585.4',BREAKOVER AT 42K. RUN BACK DOWN AND SET BACK DOWN. PU AGAIN TO BREAKOVER AT 13,585.6'. CORRECT DEPTH TO 13,586.4'. 01:30 - 02:20 0.83 PERFOB P l OTHCMP CONDUCT PRACTICE FIRING SEQUENCES WITH PUMP. CONDUCT FIRING SEQUENCE, BEGIN PICK UP. POSITIVE INDICATION& FIRING ON DEPTH WITH BOTTOM SHOT AT 13.585'. 02:20 - 03:30 1.17 PERFOB P OTHCMP BEGIN POH,CLOSE IN CHOKE,COME ON WITH PUMPS TO OBTAIN BACK PRESSURE. POH AT 50 FPM MAINTAINING 220-300 PSI BACK PRESSURE WHILE PUMPING DOWN COIL. 03:30 - 04:00 0.50 PERFOB P ; OTHCMP OPEN CHOKE. FLOW CHECK WELL FOR 30 MINUTES. GOOD. IMMEDIATE RETURNS WITH CIRCULATION. 04:00 - 05:15 1.25 PERFOB P OTHCMP POH WITH PERFORATION BHA TO SURFACE. 05:15 - 05:45 0.50 PERFOB P OTHCMP FLOW CHECK WELL FOR 30 MINUTES. 05:45 - 06:45 1.00 PERFOB P OTHCMP 'BREAK CIRCULATION WITH INJECTOR ON AND CIRCULATE TO KEEP HOLE FULL WHILE CONDUCTING CREW CHANGE OUT,CREW WALKAROUND AND PJSM ON LAYING DOWN PERFORATING BHA. 06:45 - 06:45 0.00 PERFOB P OTHCMP PJSM TO REMOVE INJECTOR AND PULL CSH 07:00 - 08:30 1.50 PERFOB P OTHCMP REMOVE INJECTOR AND PULL CSH !07:45 CALL TCP ENGINEERS TO THE FLOOR, WE ARE AT THE MARKER JOINT/300'FROM (SURFACE WITH THE GUNS 08:30 - 08:45 0.25 PERFOB P OTHCMP PJSM WITH TCP ENGINEERS TO PULL PERF GUNS TO SURFACE. CALL FROM ODE,WELLS GROUP WILL RUN LTP,ORDER OUT DIESEL 08:45 - 11:30 j 2.75 PERFOB P OTHCMP CLEAR RIG FLOOR AND PULL FIRING HEAD TO SURFACE,GUNS FIRED,LAY DOWN SPENT GUNS 11:30 - 13:00 1.50 PERFOB P OTHCMP 1 GUNS OOH,LOAD OUT TCP EQUIPMENT AND UNLOAD GUNS FROM PIPE SHED Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 9 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type:COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011K1-C(1,277,195.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.:NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 13:10 0.17 WHSUR P OTHCMP PU INJECTOR AND MU NOZZLE BHA WITH CHECK VALVES FLUIDS DISPATCH SAYS DIESEL IS ON ITS WAY CALL OUT N2 TRUCK FOR REEL BLOW DOWN TO SWAP REELS 13:10 - 13:25 0.25 WHSUR P OTHCMP STAB ON WELL AND PT QTS 13:25 - 14:00 0.58 WHSUR P OTHCMP RIH WITH NOZZLE TO FREEZE PROTECT WELL WITH DIESEL 14:00 - 14:15 0.25 WHSUR P OTHCMP STOP AT 2500',DIESEL JUST ARRIVED ON LOCATION. WAIT FOR FLUID TRANSFER PERMIT TO BE FILLED OUT THEN START PUMPING 14:15 - 14:40 0.42 WHSUR P OTHCMP ONLINE WITH DIESEL 14:40 - 15:15 0.58 WHSUR I P OTHCMP 10 BBLS OUT THE NOZZLE,POOH 1:1 TAKING RETURNS TO THE TIGER TANK 15:15 - 15:35 0.33 WHSUR P OTHCMP GOOD DIESEL AT SURFACE,TAG UP AND CLOSE THE MASTER DISPLACE REMAINIG 3 BBLS OF DIESEL OUT 'OF COIL THEN JET STACK FOR LATER INSPECTION 15:35 - 15:50 . 0.25 RIGD P POST rN2 CREW ON LOCATION,HOLD PJSM WITH THEM TO RU AND PT THEIR TREATING LINE 15:50 - 16:00 0.17 RIGD P { POST HOLD PJSM WITH RIG CREW TO PT MASTER &SWAB BEFORE BLOW DOWN :16:00 - 16:30 0.50 RIGD P POST TEST MASTER 5 MIN LOW&5 MIN HIGH AS PER ADWOP TEST CRITERIA FOR BREAKING _ CONTAINMENT FOR BOPE 16:30 - 16:50 0.33 RIGD P POST GOOD TEST ON MASTER,CLOSE SWAB AND TEST SAME 16:50 - 17:30 0.67 RIGD P POST GOOD TEST ON SWAB,SLB IS TESTING 'THEIR N2 LINE 17:30 - 17:35 0.08 RIGD P POST CAN'T GET A GOOD HIGH PT,BLEED OFF SLB IS GOING TO ADD THEIR OWN BLOCK VALVE 'AND PT AGAINST IT THEN RETEST LOW AND HIGH 17:35 - 17:40 ' 0.08 RIGD P POST START LOW PT 17:40 - 18:30 0.83 RIGD P POST GOOD LOW PTM,START HIGH PT 18:30 - 19:00 0.50 RIGD P POST HAVING TROUBLE GETTING A HIGH PT. BLEED OFF RATE ISA LITTLE OVER THE 50 PSI IN 5 MIN. BLEED OFF, RE-TEST WITH GOOD HIGH PRESSURE TEST. 19:00 - 20:00 1.00 RIGD P POST I PJSM WITH CREW ON BLOW DOWN. CONDUCT 142 BLOW DOWN. 20:00 - 21:30 1.50 WHSUR P WHDTRE RD N2 CREW. LUBRICATOR CREW ON SITE. GREASE TREE VALVES AFTER BLOW DOWN IN PREPARATION FOR SETTING BPV. DRAIN STACK OF FLUID. FILL STACK WITH METHANOL. 21:30 - 21:45 0.25 WHSUR P WHDTRE •PJSM ON MOBILIZING LUBRICATOR EQUIPMENT TO FLOOR AND SETTING BPV. - _ 21:45 -- 23:15 1.50 WHSUR ' P WHDTRE MOBILIZE LUBRICATOR TO FLOOR. MU TO RIG LUBRICATOR. PRESSURE TEST TO 250 PSI LOW AND 3500 PSI HIGH. OPEN MASTER AND SWAB TO WELL, NO PRESSURE. -SLB CREW REMOVED INNER REEL IRON AND PRESSURE BULKHEAD Printed 6/18/2012 10:55:32AM North America -ALASKA- BP Page 10 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type: COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011K1-C(1,277,195.00) Project:Prudhoe Bay Site:PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316"W Active Datum:ORIG KELLY BUSHING©62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:15 - 23:35 0.33 I WHSUR P WHDTRE iSET BACK PRESSURE VALVE. NOTIFIED STATE THAT BACK PRESSURE VALVE SET AT 2335 HRS 23:35 - 23:45 0.17 WHSUR P WHDTRE PICK UP LUBRICATOR EXTENSION FROM ACROSS VALVES. CLOSE MASTER AND SWAB VALVE. CONDUCT LEAK TIGHT TEST. TESTS GOOD. 23:45 - 00:00 0.25 WHSUR P WHDTRE RD LUBRICATOR EQUIPMENT 6/2/2012 00:00 - 00:30 0.50 WHSUR P WHDTRE MOBILIZE LUBRICATOR OFF OF RIG. CLEAR AND CLEAN RIG FLOOR. 00:30 - 03:00 2.50 RIGD P POST .WAIT ON REEL TO ARRIVE ON LOCATION. CLEAN PITS. DRAIN MUD GAS SEPARATOR U-TUBE. INSTALL NIGHTCAP. PRESSURE TEST MASTER AND SWAB TO 250 PSI LOW, 3500 PSI HIGH. OPEN BOP DOORS FOR INSPECTION PRIOR TO ND. INSPECT DOOR SEALS,RAM BODY ELEMENTS. 03:00 - 06:00 3.00 RIGD P POST REEL ON LOCATION. PJSM ON CUTTING CONNECTOR, INSTALLING GRAPPLE,PULL TEST. CONDUCT PREP FOR PULLING BACK. PULL TEST GOOD. PULL REEL BACK TO REEL HOUSE. SECURE COIL TO REEL. STAGE TRUCKING,PLACE OPERATIONS ON HOLD UNTIL CREW CHANGEOUT. 06:00 - 06:30 0.50 RIGD P POST CREW CHANGE 06:30 - 07:00 0.50 RIGD P POST HOLD PJSM WITH CREWS AND CI-12 DRIVER TO SWAP REELS 107:00 - 08:30 1.50 RIGD P POST SWAP REELS IAP AT 175 PSI,BLEED OFF BEFORE MOVING RIG OFF WELL 08:30 - 09:55 1.42 RIGD P POST REELS SWAPPED,SECURE REEL AND INSTALL GRAPPLE BLED IA PRESSURE DOWN TO 94 PSI BUT IS NOW MOSTLY FLUID.SHUT IN AND SEE IF IT WILL SETTLE OUT BACK TO GAS.BLED OFF A LITTLE MORE GAS THEN ALL FLUID CALLED TREE&WELLHEAD CREW TO BRING ANOTHER VALVE OUT TO DOUBLE VALVE SO WE CAN MOVE OFF CREWS RIGGING UP HARDLINE IN REEL AND PREPPING TO STAB COIL 09:55 - 10:10 0.25 RIGD P POST HOLD PJSM WITH TREE&WELLHEAD CREW TO INSTALL 2ND VALVE ON IA 10:10 - 10:50 0.67 RIGD P POST ADD 2ND VALVE TO IA 10:50 - 11:35 0/5 RIGD P POST PULL CT TO INJECTOR AND STAB 11:35 - 11:50 0.25 RIGD P POST COIL STABBED,REMOVE GRAPPLE AND SET INJECTOR ON ITS LEGS 11:50 - 14:00 2.17 RIGD P 1POST 2ND IA VALVE INSTALLED AND PRESSURE TESTED 14:00 - 16:00 2.00 RIGD P POST PJSM TO ND BOPE 1 - NIPPLE DOWN BOPE Printed 6/18/2012 10:55:32AM North America-ALASKA- BP Page 11 of 11 Operation Summary Report Common Well Name:C-12 AFE No Event Type:COM-ONSHORE(CON) Start Date: 5/14/2012 End Date: X3-011 K1-C(1,277,195.00) Project:Prudhoe Bay Site: PB C Pad Rig Name/No.: NORDIC 1 Spud Date/Time: 11/14/1979 12:00:00AM Rig Release: Rig Contractor:NORDIC CALISTA UWI:/Lat:070°17'55.857"7 Long: 0148°40'14.316'W Active Datum:ORIG KELLY BUSHING @62.90ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) _ 16:00 - 18:00 2.00 RIGD P POST CALLED AOGCC FOR 24 HR NOTICE OF TESTING BOP'S CHUCK SHEVIE CALLED AND WOULD LIKE US TO CALL HIM AFTER WE GET A SHELL TEST CONTINUE WITH RIG DOWN OPERATIONS. CONDUCT LOW AND HIGH PRESSURE TEST AGAINST TREE CAP. GOOD TEST. RIG RELEASE AT 1800 HRS. Printed 6/18/2012 10:55:32AM C-12C, Well History (Post Rig Sidetrack) Date Summary 06/08/12 T/I/O=Vac/200/0 Conducted PJSM; P.T. (charted)SSV(barrier)to 300 psi/3500 PSI (passed)before removing tree cap, SSV&MN used as barriers; Installed Lubricator&P.T. (charted)against SSV to 250 PSI/3500 PSI (passed); Pulled 6"CIW"J"BPV#421 @ 108"w/1-2'ext.; Rigged down lubricator and rigged up CIW"J"TWC#423, PT'd lubricator(same procedure and barriers)passed.Set TWC tagging at 108". Rigged down lubricator and rigged up pulling tool. PT'd lubricator(same procedure and barriers) passed. Ran down to 102"and PT'd tree to 250 psi. low for 5 min. (passed). and 5000 psi. high for 5 min. (passed).Charted and documented. Pulled TWC and rigged down lubricator. PT'd tree cap to 500 psi. (passed)Grease crew torque tree to spec on 6-6-12(see log). 06/12/12 ONE ARM OF BOWSPRING CENT LEFT IN HOLE. RAN 3.50"DRIFT TO DEP SLV @ 10307' SLM/10308'MD. RAN PDS 40arm CALIPER FROM 10307'SLM TO 9700'SLM. CALIPER ARMS DID NOT CLOSE&ONE LOWER ARM FROM BOWSPRING IS MISSING(-9"OAL), NO DATA. RAN 3.50" LIB ON 3.75"BARBELL TO DEP SLV @ 10301'SLM/10308'MD(lib has chunks of metal stuck in it). RAN 3.50"MAGNET ON 3.75"BARBELL TO DEP SLV @ 10301'SLM/10308'MD RAN 3.25"LIB W/3.50"CENT.TO DEP SLV @ 10,301'SLM/10,308'MD(no marks on face) RAN 3.70"LIB ON 3.75"BARBELL TO DEP SLV @ 10,301'SLM/10,308'MD(lib shows top of dep sleeve, metal marks on side). 06/13/12 RAN 1.75"CENT.W/1-1/2"S-BAILER TO 10,500'SLM(no obstructions). RAN PDS 40 ARM CALIPER FROM 10,300'SLM TO 9,700'SLM(good data). 06/16/12 RAN PDS 24 ARM CALIPER FROM 10450'SLM TO 9682'SLM. GOOD DATA. 06/21/12 T/I/0=150/200/0 Temp=SI MIT-IA to 2000 psi PASSED(Post CTD)Pressured IA with 5 bbls crude. IA lost 54 psi in 1st 15 min, IA lost 10 psi in 2nd 15 min for a total loss of 64 psi in 30 min test bled back-4 bbls Final WHP's 150/140/40 SV,WV=closed SSV,MV,IA,OA=open Pad op notified on departure.Tag hung on IA. 06/23/12 TAG DEPLOYMENT SLV @ 10,285'SLM W/3.50"L.I.B.(Impression of partial f.n.w/metal debris). BRUSHED THE TOP OF DEPLOYMENT SLEEVE @ 10,285'SLM W/LRS PUMPING DIESEL(No issues). TAG DEPLOYMENT SLV @ 10,285'SLM W/3.80"BARBELL, 3.73"L.I.B.(Full impression of sleeve). CURRENTLY RIH W/HES DPU, BAKER LTP TO DEPLOYMENT SLV @ 10,308'MD. 06/24/12 Pumped 7 bbls of diesel down Tbg to push SSline down hole. Performed MIT-T to 2000 psi***PASS** Pumped 5.6 bbls diesel to achieve Test pressure of 2000 psi. 1st 15 min readings Tbg lost 49 psi/IA gained 5 psi/OA lost 0 psi. 2nd 15 min readings Tbg lost 19 psi/IA gained 2 psi/OA lost 0 psi.Total test readings Tbg lost 68 psi/IA gained 7 psi/OA lost 0 psi.***PASS***Bled Tbg pressure to 332 psi. SS-line in control of well per LRS departure. FWHP's=332/831/54 CVs=OTG, 06/24/12 SET BAKER 45"KB"LINER TOP PACKER(Oal= 14.18')@ 10,275'SLM. SET 2.813"CAT STANDING VALVE IN 45"KB"PACKER© 10,275'SLM. LRS PERFORMED SUCCESSFUL MIT-T TO 2000 PSI. —PUL-CE-15-2-i8-1--3-4--CAT STANDING VALVE FROM 10,275'SLM. Page 1 of 1 Y EI BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB C Pad C-12 - Slot 12 / Lat: 070°17'55.857"7 Long: 0148°40'14.316"W C-12C Survey: MWD Survey Report - Geographic 31 May, 2012 Mill BAKER0 bp HUGHES Survey Report-Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay ND Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drillir Site: PB C Pad MD Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drillir Well: C-12 North Reference: True Wellbore: C-12C Survey Calculation Method: Minimum Curvature Design: C-12C Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PBC Pad,TR-11-14 Site Position: Northing: 5,957,218.72 ft Latitude: 70°17'22.367 N From: Map Easting: 662,550.03ft Longitude: 148°41'2.797 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 1.24° Well C-12 API No 500292038700 Well Position +N/-S 0.00 ft Northing: 5,960,659.00 ft Latitude: 70°17'55.857 N +E/-W 0.00 ft Easting: 664,139.00 ft Longitude: 148°40'14.316 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 33.00ft Wellbore C-12C API No 500292038703 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2011 5/1/2012 21.03 81.03 57,659 Design C-12C Audit Notes: Version: Phase: ACTUAL Tie On Depth: 11,475.00 Vertical Section: Depth From(ND) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 29.90 0.00 0.00 130.54 Survey Program Date: 5/29/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 100.00 11,475.00 Gyro(C-12B) GYD-CT-CMS Gyrodata cont.casing m/s 11,477.00 13,628.00 MWD(C-12C) MWD MWD-Standard 5/31/2012 9:37:43AM Page 2 COMPASS 2003.16 Build 73 BAKER 0 by HUGHES Survey Report-Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay TVD Reference: 14: 12 11/14/1979 00:00 @ 62.90ft(generic drillir Site: PB C Pad MD Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drillir Well: C-12 North Reference: True Wellbore: C-12C Survey Calculation Method: Minimum Curvature Design: C-12C Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 11,475.00 16.87 162.53 8,681.56 -4,146.14 4,853.10 5,956,620.13 669,081.16 70°17'15.065 N 148°37'52.919 W TIP 11,477.00 16.54 163.84 8,683.47 -4,146.69 4,853.27 5,956,619.59 669,081.34 70° 17'15.059 N 148°37'52.915 W KOP 11,507.33 22.53 155.93 8,712.05 -4,156.15 4,856.84 5,956,610.21 669,085.12 70° 17 14.966 N 148°37'52.811 W 11,525.00 24.04 152.72 8,728.28 -4,162.44 4,859.87 5,956,603.98 669,088.29 70° 17 14.904 N 148°37'52.722 W 11,552.50 27.33 142.56 8,753.07 -4,172.44 4,866.28 5,956,594.13 669,094.91 70° 17'14.806 N 148°37'52.536 W 11,582.01 29.75 135.22 8,779.00 -4,183.02 4,875.56 5,956,583.75 669,104.42 70° 17'14.702 N 148°37'52.266 W 11,613.09 33.63 130.19 8,805.45 -4,194.06 4,887.58 5,956,572.99 669,116.67 70°17'14.593 N 148°37'51.916 W 11,643.06 36.68 123.10 8,829.96 -4,204.31 4,901.42 5,956,563.04 669,130.74 70°17'14.492 N 148°37'51.513 W 11,674.37 39.82 116.05 8,854.55 -4,213.82 4,918.28 5,956,553.90 669,147.80 70°17'14.399 N 148°37'51.022 W 11,705.16 42.98 113.91 8,877.65 -4,222.41 4,936.73 5,956,545.72 669,166.44 70°17'14.314 N 148°37'50.484 W 11,736.02 46.94 117.65 8,899.48 -4,231.91 4,956.35 5,956,536.65 669,186.25 70°17'14.220 N 148°37'49.913 W 11,767.10 51.95 120.68 8,919.69 -4,243.43 4,976.95 5,956,525.58 669,207.09 70°17'14.107 N 148°37'49.313 W 11,797.98 56.62 122.64 8,937.71 -4,256.60 4,998.27 5,956,512.88 669,228.70 70°17'13.977 N 148°37'48.692 W 11,827.64 60.19 119.27 8,953.25 -4,269.58 5,019.94 5,956,500.38 669,250.64 70° 17'13.850 N 148°37'48.061 W 11,859.84 63.60 115.84 8,968.42 -4,282.70 5,045.12 5,956,487.81 669,276.10 70° 17'13.720 N 148°37'47.328 W 11,889.32 66.50 112.55 8,980.86 -4,293.64 5,069.49 5,956,477.40 669,300.71 70° 17'13.613 N 148°37'46.618 W 11,919.60 69.43 108.44 8,992.22 -4,303.45 5,095.78 5,956,468.17 669,327.20 70° 17'13.516 N 148°37'45.852 W 11,949.58 71.24 104.00 9,002.31 -4,311.33 5,122.88 5,956,460.89 669,354.46 70° 17'13.438 N 148°37'45.063 W 11,985.57 74.39 99.12 9,012.95 -4,318.21 5,156.55 5,956,454.75 669,388.28 70° 17'13.370 N 148°37'44.082 W 12,015.64 77.89 96.81 9,020.16 -4,322.25 5,185.46 5,956,451.34 669,417.26 70°17'13.330 N 148°37'43.240 W 12,055.60 84.13 95.57 9,026.40 -4,326.50 5,224.68 5,956,447.95 669,456.56 70° 17'13.288 N 148°37'42.097 W 12,085.59 88.77 94.90 9,028.25 -4,329.23 5,254.48 5,956,445.87 669,486.41 70°17'13.261 N 148°37'41.229 W 12,115.64 89.57 92.56 9,028.69 -4,331.18 5,284.46 5,956,444.57 669,516.43 70°17'13.242 N 148°37'40.356 W 12,149.03 89.79 85.74 9,028.88 -4,330.69 5,317.82 5,956,445.80 669,549.77 70°17'13.247 N 148°37'39.384 W 12,177.53 88.34 81.20 9,029.34 -4,327.45 5,346.13 5,956,449.65 669,577.99 70°17'13.278 N 148°37'38.559 W 12,210.96 87.45 76.82 9,030.57 -4,321.08 5,378.91 5,956,456.73 669,610.63 70°17'13.341 N 148°37'37.603 W 12,242.77 89.97 78.57 9,031.29 -4,314.30 5,409.98 5,956,464.19 669,641.54 70°17'13.407 N 148°37'36.698 W 12,278.22 90.34 84.63 9,031.19 -4,309.13 5,445.03 5,956,470.13 669,676.47 70°17'13.458 N 148°37'35.677 W 12,309.09 90.34 90.82 9,031.01 -4,307.90 5,475.86 5,956,472.02 669,707.27 70°17'13.469 N 148°37'34.779 W 12,343.12 89.94 96.13 9,030.92 -4,309.96 5,509.82 5,956,470.70 669,741.26 70°17'13.449 N 148°37'33.789 W 12,375.42 90.00 101.14 9,030.94 -4,314.81 5,541.74 5,956,466.55 669,773.27 70°17'13.401 N 148°37'32.859 W 12,412.46 91.35 108.02 9,030.50 -4,324.13 5,577.56 5,956,458.02 669,809.29 70°17'13.309 N 148°37'31.816 W 12,440.12 90.74 113.80 9,030.00 -4,334.00 5,603.39 5,956,448.72 669,835.32 70°17'13.212 N 148°37'31.064 W 12,476.93 91.69 120.81 9,029.22 -4,350.87 5,636.07 5,956,432.57 669,868.36 70°17'13.046 N 148°37'30.112 W 12,510.16 89.36 118.58 9,028.91 -4,367.33 5,664.93 5,956,416.75 669,897.57 70°17'12.884 N 148°37'29.272 W 12,539.79 89.11 114.15 9,029.31 -4,380.48 5,691.47 5,956,404.18 669,924.39 70°17'12.754 N 148°37'28.499 W 12,575.26 87.36 108.08 9,030.40 -4,393.25 5,724.52 5,956,392.14 669,957.71 70°17'12.628 N 148°37 27.536 W 12,602.62 84.92 106.16 9,032.24 -4,401.28 5,750.61 5,956,384.67 669,983.97 70°17'12.549 N 148°37 26.776 W 12,630.30 84.56 101.59 9,034.78 -4,407.89 5,777.36 5,956,378.65 670,010.85 70°17'12.484 N 148°37 25.997 W 12,660.00 83.45 100.21 9,037.88 -4,413.47 5,806.36 5,956,373.70 670,039.97 70°17'12.429 N 148°37'25.152 W 12,690.10 87.67 97.35 9,040.21 -4,418.05 5,836.01 5,956,369.77 670,069.71 70°17'12.384 N 148°37'24.288 W 12,720.02 90.21 92.21 9,040.77 -4,420.54 5,865.81 5,956,367.93 670,099.55 70°17'12.359 N 148°37'23.420 W 12,752.69 92.30 87.79 9,040.05 -4,420.54 5,898.46 5,956,368.65 670,132.20 70°17'12.359 N 148°37'22.469 W 12,790.25 92.79 81.04 9,038.38 -4,416.89 5,935.79 5,956,373.11 670,169.43 70°17'12.394 N 148°37'21.381 W 12,820.38 92.61 75.60 9,036.96 -4,410.80 5,965.25 5,956,379.84 670,198.75 70°17'12.454 N 148°37'20.523 W 12,850.28 94.40 78.21 9,035.13 -4,404.04 5,994.31 5,956,387.24 670,227.65 70°17'12.520 N 148°37 19.676 W 12,879.72 93.93 82.64 9,032.99 -4,399.16 6,023.26 5,956,392.75 670,256.49 70°17'12.568 N 148°37'18.833 W 12,910.42 91.72 87.57 9,031.48 -4,396.55 6,053.80 5,956,396.03 670,286.96 70°17'12.593 N 148°37'17.943 W 12,939.85 90.95 93.12 9,030.79 -4,396.72 6,083.21 5,956,396.50 670,316.36 70°17'12.591 N 148°37'17.086 W 12,970.84 89.72 99.36 9,030.61 -4,400.09 6,114.00 5,956,393.80 670,347.22 70°17'12.558 N 148°37'16.189 W 13,000.10 87.73 103.65 9,031.26 -4,405.92 6,142.66 5,956,388.60 670,375.99 70°17'12.500 N 148°37'15.354 W 13,030.14 87.33 111.00 9,032.56 -4,414.85 6,171.29 5,956,380.30 670,404.81 70°17'12.412 N 148°37'14.520 W 13,060.27 89.51 117.14 9,033.39 -4,427.13 6,198.77 5,956,368.62 670,432.55 70°17'12.291 N 148°37 13.720 W 5/31/2012 9:37:43AM Page 3 COMPASS 2003.16 Build 73 ►/fit BAKER HUGHES Survey Report-Geographic bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay TVD Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drillir Site: PB C Pad MD Reference: 14: 12 11/14/1979 00:00 @ 62.90ft(generic drillir Well: C-12 North Reference: True Wellbore: C-12C Survey Calculation Method: Minimum Curvature Design: C-12C Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +El-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 13,090.39 91.35 124.84 9,033.17 -4,442.63 6,224.57 5,956,353.69 670,458.68 70°17'12.139 N 148°37'12.969 W 13,120.44 89.91 123.05 9,032.84 -4,459.40 6,249.50 5,956,337.47 670,483.97 70°17'11.974 N 148°37 12.243 W 13,152.06 90.34 118.11 9,032.77 -4,475.49 6,276.71 5,956,321.98 670,511.52 70° 17'11.815 N 148°37'11.450 W 13,192.95 90.52 112.30 9,032.46 -4,492.89 6,313.69 5,956,305.39 670,548.87 70° 17'11.644 N 148°37'10.373 W 13,224.92 89.57 107.72 9,032.43 -4,503.83 6,343.72 5,956,295.11 670,579.13 70° 17'11.536 N 148°37'9.499 W 13,254.62 90.25 103.14 9,032.48 -4,511.73 6,372.34 5,956,287.84 670,607.92 70° 17'11.458 N 148°37'8.665 W 13,291.89 91.45 98.08 9,031.93 -4,518.59 6,408.96 5,956,281.78 670,644.67 70° 17'11.390 N 148°37'7.598 W 13,322.98 91.72 100.09 9,031.07 -4,523.49 6,439.65 5,956,277.55 670,675.46 70° 17'11.342 N 148°37'6.705 W 13,355.71 91.63 99.42 9,030.11 -4,529.04 6,471.89 5,956,272.71 670,707.81 70° 17'11.287 N 148°37'5.765 W 13,385.44 88.49 101.96 9,030.08 -4,534.55 6,501.10 5,956,267.84 670,737.13 70° 17'11.232 N 148°37'4.915 W 13,417.93 86.83 105.73 9,031.41 -4,542.32 6,532.61 5,956,260.76 670,768.81 70° 17'11.156 N 148°37'3.997 W 13,450.50 88.99 110.35 9,032.60 -4,552.39 6,563.55 5,956,251.36 670,799.95 70°17'11.056 N 148°37'3.096 W 13,482.40 89.79 113.20 9,032.93 -4,564.22 6,593.17 5,956,240.18 670,829.82 70° 17'10.940 N 148°37'2.233 W 13,512.22 91.81 110.33 9,032.52 -4,575.28 6,620.85 5,956,229.74 670,857.74 70° 17'10.831 N 148°37'1.427 W 13,540.89 95.17 109.33 9,030.77 -4,584.99 6,647.77 5,956,220.62 670,884.86 70° 17'10.735 N 148°37'0.643 W 13,566.70 97.72 108.38 9,027.88 -4,593.27 6,672.04 5,956,212.87 670,909.30 70°17'10.653 N 148°36'59.936 W 13,591.48 100.49 108.16 9,023.96 -4,600.94 6,695.27 5,956,205.71 670,932.70 70°17'10.578 N 148°36'59.259 W 13,628.00 100.49 108.16 9,017.31 -4,612.14 6,729.39 5,956,195.26 670,967.05 70°17'10.467 N 148°36'58.266 W TD-23/8" 5/31/2012 9:37:43AM Page 4 COMPASS 2003.16 Build 73 F//S BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB C Pad C-12 - Slot 12 / Lat: 070°17'55.857"7 Long: 0148°40'14.316"W C-12CPB1 Survey: MWD Survey Report - Geographic 31 May, 2012 F /' VA ER 0BAKER HUGHES Survey Report-Geographic bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay TVD Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drillir Site: PB C Pad MD Reference: 14: 12 11/14/1979 00:00 @ 62.90ft(generic drillir Well: C-12 North Reference: True Wellbore: C-12CPB1 Survey Calculation Method: Minimum Curvature Design: C-12CPB1 Database: EDM.16-ANC Prod-WH24P Project Prudhoe Bay,GPB,PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PBC Pad,TR-11-14 Site Position: Northing: 5,957,218.72ft Latitude: 70°17'22.367 N From: Map Easting: 662,550.03ft Longitude: 148°41'2.797 W Position Uncertainty: 0.00 ft Slot Radius: 0.000in Grid Convergence: 1.24° Well C-12 API No 500292038700 Well Position +N/-S 0.00 ft Northing: 5,960,659.00 ft Latitude: 70°17'55.857 N +E/-W 0.00 ft Easting: 664,139.00 ft Longitude: 148°40'14.316 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 33.00ft Wellbore C-12CPB1 API No 500292038771 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (0) (0) (n•) , BGGM2011 5/1/2012 21.03 81.03 57,659 Design C-12CPB1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 11,600.00 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (0) 29.90 0.00 0.00 125.49 Survey Program Date: 5/17/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 100.00 11,600.00 Gyro(C-12B) GYD-CT-CMS Gyrodata cont.casing m/s 11,625.00 13,560.00 MWD(C-12CPB1) MWD MWD-Standard 5/31/2012 9:32:14AM Page 2 COMPASS 2003.16 Build 73 IM.IIII BAKER bp HUGHES Survey Report Geographic p INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay TVD Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drillir Site: PB C Pad MD Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drillir Well: C-12 North Reference: True Wellbore: C-12CPB1 Survey Calculation Method: Minimum Curvature Design: C-12CPB1 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) r) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 11,600.00 22.29 265.39 8,802.00 -4,166.17 4,834.30 5,956,599.70 669,062.80 70°17'14.868 N 148°37'53.468 W TIP 11,625.00 23.62 279.90 8,825.04 -4,165.69 4,824.63 5,956,599.97 669,053.13 70° 17'14.872 N 148°37'53.749 W KOP 11,655.25 16.55 287.93 8,853.44 -4,163.32 4,814.55 5,956,602.12 669,042.99 70°17'14.896 N 148°37'54.043 W 11,665.22 14.34 292.22 8,863.05 -4,162.42 4,812.05 5,956,602.97 669,040.48 70°17'14.905 N 148°37'54.116 W 11,695.23 17.52 264.88 8,891.94 -4,161.41 4,804.10 5,956,603.80 669,032.51 70°17'14.915 N 148°37'54.347 W 11,725.17 26.55 241.91 8,919.72 -4,164.98 4,793.67 5,956,600.00 669,022.16 70°17'14.880 N 148°37'54.651 W 11,755.37 33.87 218.48 8,945.89 -4,174.79 4,782.42 5,956,589.95 669,011.13 70°17'14.783 N 148°37'54.979 W 11,785.25 41.04 205.71 8,969.63 -4,190.19 4,772.96 5,956,574.35 669,002.01 70°17'14.632 N 148°37'55.255 W 11,815.24 49.71 206.32 8,990.68 -4,209.35 4,763.60 5,956,554.99 668,993.07 70°17'14.443 N 148°37'55.528 W 11,846.51 59.56 206.57 9,008.75 -4,232.15 4,752.25 5,956,531.94 668,982.22 70°17'14.219 N 148°37'55.859 W 11,877.01 64.97 193.53 9,022.99 -4,257.45 4,743.10 5,956,506.45 668,973.63 70°17'13.971 N 148°37'56.126 W 11,912.52 75.50 184.06 9,035.00 -4,290.40 4,738.10 5,956,473.41 668,969.34 70°17'13.647 N 148°37'56.273 W 11,945.99 80.04 175.12 9,042.11 -4,323.06 4,738.35 5,956,440.76 668,970.31 70° 17'13.325 N 148°37'56.266 W 11,982.89 84.57 159.43 9,047.08 -4,358.60 4,746.41 5,956,405.41 668,979.14 70°17'12.976 N 148°37'56.032 W 12,013.71 95.53 165.08 9,047.05 -4,387.90 4,755.78 5,956,376.32 668,989.15 70°17'12.688 N 148°37'55.759 W 12,048.20 100.02 149.47 9,042.36 -4,419.32 4,768.91 5,956,345.20 669,002.97 70°17'12.378 N 148°37'55.377 W 12,079.99 100.02 156.05 9,036.82 -4,447.14 4,783.23 5,956,317.70 669,017.89 70°17'12.105 N 148°37'54.961 W 12,108.71 92.09 147.31 9,033.79 -4,472.23 4,796.77 5,956,292.92 669,031.97 70°17'11.858 N 148°37'54.567 W 12,135.71 90.06 137.71 9,033.28 -4,493.62 4,813.18 5,956,271.89 669,048.85 70°17'11.647 N 148°37'54.089 W 12,163.15 92.12 129.78 9,032.76 -4,512.57 4,832.99 5,956,253.37 669,069.06 70°17'11.461 N 148°37'53.512 W 12,206.50 88.74 118.97 9,032.43 -4,537.01 4,868.71 5,956,229.73 669,105.30 70°17'11.220 N 148°37'52.472 W 12,235.42 88.93 107.76 9,033.02 -4,548.46 4,895.21 5,956,218.86 669,132.04 70°17'11.108 N 148°37'51.700 W 12,265.69 89.54 95.63 9,033.43 -4,554.58 4,924.79 5,956,213.39 669,161.75 70°17'11.047 N 148°37'50.839 W 12,305.22 91.41 81.63 9,033.10 -4,553.64 4,964.21 5,956,215.19 669,201.13 70°17'11.056 N 148°37'49.690 W 12,335.64 91.72 76.72 9,032.26 -4,547.93 4,994.07 5,956,221.55 669,230.86 70°17'11.112 N 148°37'48.820 W 12,368.11 91.81 71.03 9,031.26 -4,538.92 5,025.23 5,956,231.24 669,261.82 70° 17'11.201 N 148°37'47.912 W 12,395.72 89.85 65.77 9,030.86 -4,528.76 5,050.89 5,956,241.95 669,287.25 70°17'11.300 N 148°37'47.164 W 12,425.70 90.09 61.89 9,030.88 -4,515.54 5,077.79 5,956,255.76 669,313.85 70° 17'11.430 N 148°37 46.380 W 12,467.87 89.63 55.07 9,030.98 -4,493.51 5,113.72 5,956,278.57 669,349.29 70° 17'11.647 N 148°37'45.333 W 12,505.74 89.79 49.38 9,031.17 -4,470.32 5,143.64 5,956,302.40 669,378.69 70° 17'11.874 N 148°37'44.461 W 12,537.92 88.86 44.94 9,031.55 -4,448.45 5,167.23 5,956,324.78 669,401.79 70° 17'12.089 N 148°37'43.773 W 12,564.60 89.57 51.02 9,031.92 -4,430.60 5,187.04 5,956,343.06 669,421.21 70° 17'12.265 N 148°37'43.196 W 12,595.83 90.52 56.85 9,031.89 -4,412.22 5,212.27 5,956,361.98 669,446.03 70° 17'12.445 N 148°37'42.460 W 12,625.65 90.37 61.17 9,031.66 -4,396.87 5,237.83 5,956,377.89 669,471.25 70°17'12.596 N 148°37'41.715 W 12,655.82 90.71 66.64 9,031.38 -4,383.60 5,264.91 5,956,391.74 669,498.03 70° 17'12.726 N 148°37'40.926 W 12,690.38 91.35 72.74 9,030.76 -4,371.62 5,297.30 5,956,404.43 669,530.15 70° 17'12.844 N 148°37'39.982 W 12,715.32 91.29 77.78 9,030.18 -4,365.27 5,321.41 5,956,411.30 669,554.11 70° 17'12.906 N 148°37'39.280 W 12,745.99 89.78 83.65 9,029.89 -4,360.33 5,351.66 5,956,416.90 669,584.24 70° 17'12.955 N 148°37'38.398 W 12,775.78 88.71 89.05 9,030.29 -4,358.43 5,381.37 5,956,419.45 669,613.91 70° 17'12.973 N 148°37'37.533 W 12,805.62 88.19 94.36 9,031.10 -4,359.32 5,411.18 5,956,419.21 669,643.72 70° 17'12.964 N 148°37'36.664 W 12,835.63 87.94 100.74 9,032.11 -4,363.26 5,440.90 5,956,415.92 669,673.52 70°17'12.925 N 148°37'35.799 W 12,865.94 89.29 105.74 9,032.84 -4,370.20 5,470.38 5,956,409.63 669,703.15 70°17'12.857 N 148°37'34.940 W 12,897.94 90.95 110.30 9,032.78 -4,380.09 5,500.80 5,956,400.40 669,733.77 70° 17'12.759 N 148°37'34.054 W 12,924.07 91.97 108.47 9,032.11 -4,388.76 5,525.44 5,956,392.27 669,758.60 70° 17'12.674 N 148°37'33.336 W 12,955.54 91.47 104.68 9,031.17 -4,397.73 5,555.59 5,956,383.96 669,788.92 70° 17'12.585 N 148°37'32.458 W 12,987.20 91.08 100.46 9,030.46 -4,404.62 5,586.47 5,956,377.75 669,819.95 70° 17'12.517 N 148°37'31.558 W 13,016.30 91.41 97.16 9,029.83 -4,409.08 5,615.22 5,956,373.92 669,848.79 70°17'12.473 N 148°37'30.721 W 13,049.74 90.95 93.82 9,029.14 -4,412.27 5,648.49 5,956,371.45 669,882.12 70° 17'12.442 N 148°37 29.751 W 13,080.48 89.36 90.15 9,029.06 -4,413.34 5,679.21 5,956,371.06 669,912.85 70° 17'12.431 N 148°37 28.857 W 13,110.36 89.14 86.74 9,029.45 -4,412.53 5,709.07 5,956,372.52 669,942.69 70° 17'12.439 N 148°37'27.987 W 13,140.22 87.91 81.94 9,030.22 -4,409.59 5,738.77 5,956,376.11 669,972.31 70° 17'12.468 N 148°37'27.121 W 13,169.50 85.27 76.62 9,031.96 -4,404.15 5,767.47 5,956,382.17 670,000.89 70° 17'12.521 N 148°37'26.285 W 13,200.19 82.65 71.37 9,035.19 -4,395.74 5,796.80 5,956,391.22 670,030.02 70°17'12.603 N 148°37'25.430 W 5/31/2012 9:32:14AM Page 3 COMPASS 2003.16 Build 73 .■ bp BAKER HUGHES Survey Report-Geographic INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay TVD Reference: 14: 12 11/14/1979 00:00 @ 62.90ft(generic drillir Site: PB C Pad MD Reference: 14: 12 11/14/1979 00:00 @ 62.90ft(generic drillir Well: C-12 North Reference: True Wellbore: C-12CPB1 Survey Calculation Method: Minimum Curvature Design: C-12CPB1 Database: EDM.16-ANC Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (0) (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 13,230.15 85.00 67.18 9,038.41 -4,385.20 5,824.64 5,956,402.36 670,057.63 70° 17 12.707 N 148°37'24.619 W 13,260.22 87.82 65.95 9,040.30 -4,373.27 5,852.18 5,956,414.89 670,084.89 70° 17'12.824 N 148°37'23.816 W 13,291.10 93.04 70.47 9,040.06 -4,361.81 5,880.83 5,956,426.97 670,113.29 70°17'12.936 N 148°37'22.981 W 13,320.24 97.76 73.95 9,037.32 -4,352.95 5,908.44 5,956,436.44 670,140.69 70°17'13.023 N 148°37'22.177 W 13,350.16 97.13 79.63 9,033.44 -4,346.18 5,937.31 5,956,443.84 670,169.41 70°17'13.090 N 148°37'21.335 W 13,380.08 91.96 84.05 9,031.07 -4,341.95 5,966.82 5,956,448.71 670,198.81 70° 17'13.131 N 148°37'20.476 W 13,410.12 89.11 91.55 9,030.79 -4,340.80 5,996.81 5,956,450.52 670,228.77 70°17'13.142 N 148°37'19.602 W 13,440.17 91.14 97.07 9,030.72 -4,343.05 6,026.76 5,956,448.91 670,258.76 70° 17'13.120 N 148°37'18.729 W 13,472.21 90.31 104.84 9,030.32 -4,349.14 6,058.19 5,956,443.52 670,290.32 70°17'13.060 N 148°37'17.814 W 13,500.14 91.08 110.23 9,029.98 -4,357.55 6,084.81 5,956,435.69 670,317.11 70°17'12.977 N 148°37'17.038 W 13,560.00 91.08 110.23 9,028.85 -4,378.24 6,140.97 5,956,416.23 670,373.70 70°17'12.773 N 148°37'15.403 W TD 5/31/2012 9:32:14AM Page 4 COMPASS 2003.16 Build 73 s C-12C sidetrack Page 1 of 1 4. Schwartz, Guy L (DOA) From: Schwartz, Guy L (DOA) Sent: Thursday, May 17, 2012 8:48 AM To: 'Jakabosky, Troy' �'1 1^ .-- b L6 Subject: RE: C-12C sidetrack vC t p.Thanks for the update... and new directional. As you have it labeled the abandoned hole will become C- 12CPB1. Regards, Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Jakabosky,Troy [mallto:Troy.Jakabosky@bp.com] Sent: Wednesday, May 16, 2012 8:14 PM To: Schwartz, Guy L (DOA) Subject: C-12C sidetrack Guy -We will be re-drilling C-12C. Our plan is to set whipstock at 11475 MD(Zone 4). We will land the well in the original polygon and end the well-110ft of our original TD. This should give us enough WOB to drill and complete this well. <<C-12C Plan 8.ZIP>> Let me know if you need anytng else? Thanks, Troy Troy Jakabosky BP Drilling Engineer 900 E. Benson. Cube 734B Anchorage,AK 99508 Phone 907.564.4868 Cell 907.632.2609 5/17/2012 • True Vertical Depth(65 Win) �� �AwN�omm��NAwN,� oz I ♦ 4 $ U 8 U o E u. matt,49-.4sta;gs�ca G. pJ 88�t82t�t'�PS'a?123'aa8ss�o PT $`:8884;!';4 2a8££�m°9FU_ _ 8a 22g-Ogp88mgmgN 0 n o �$ aNNN N p oi � omo � � m� 8 g / m m o 88& A8.+&.+e6.86 &e,t-,'4' lac, 888 a88w8�a8>88Na> g o- i w o - 2Bigmfp � i 4 _}}� M v ly N :441 9 'rill( '1 6o� ab N u*N - `^ y ? 0m2n 88 . o 8888888888 als888m NZgR tn o 90MM A 8882858888 8N888811 d� nw Aom932't8$ BS;k;; fl 4 0 cI u O N NS a N V N_ . m p y A w N o m m A w y ' c-.3. ... 7t UU S Otl �_ �8 V II - �e 8 s> n $- F tL fil '3i CA ON p E rodii n 8 b F O 8 m ': South(-)/North(+)(150 ft/in) - I G b A A A w S� p o 8 4 8 4 8 0 8 8 0 8 0 8 3 g o c N oa 9 M m N Cn J_ P 8- : 119n a VI 1 c ‘,1- mN 9 A e n 8 P . 1‘ \ g Irli $g 1. ti -g 8m m m A Fial g I 'a ^ _ v -�. O F.egla _ 1.'7-",i,. ,,,-,9 -ontF• N 5 0 i c.o g 2N2 U a 3 A- c 8 n O A W _ o- . a u O q /1 8 1 1 / n g v O �� ,o :30 g. 0 8 o CC CONI\-4/ VI . , 8 South(-)/North(+) (80 ft/in) 'U & b e b k W b b kg 0 0 0 0 W w 414 $ $_. r In, r ONIJ o :,.., E 8b o. v f _ 999 03 S N()S E 890p 8 a m o 8 N N N n —_. _ nI/ 0950 r [ i >' W �} v. P $ d co f S73 IT Mo 0 P" 9 a_ 8 \ 8!68 A9 8 _a_ $ \ A a_ N o 2 N- N o b f <$ g- itaA ,T N s§ nss §_ '= ONff 1 gm W s- c (illi 8919 w 3 n -'7.:. w N A oZ 8 CD v X X ;: 1114 fifivri- l G K ,, EA\ i E r I /sEAN PARNELL, GOVERNOR sirAril ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU C-12C BP Exploration (Alaska), Inc. Permit No: 212-025 Surface Location: 555' FNL, 1221' FWL, SEC. 19, T11N, R14E, UM Bottomhole Location: 127' FSL, 254' FWL, SEC. 21, T11N, R14E, 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, 0 . Daniel T. Seamount, Jr. Chair DATED this Jday of February, 2012. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA DECEIVED ALASt,S OIL AND GAS CONSERVATION COMMI__,ON —?14/ PERMIT TO DRILL FEB 2 3 2012 20 AAC 25.005 1 a.Type of work: 1b.Proposed Well Class: ®Development Oil 0 Service-Winj 0 Single Zone AMNIacettifliciCiligi 60f1ePeeftl RfSS1011 ❑ Drill ®Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed pfts,h815,es Hydrates ❑ Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp hale Gas ___; _ 2. Operator Name: 5.Bond: ® Blanket 0 Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU C-12C ___ 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 14000' TVD 8955'ss Prudhoe Bay/Prudhoe Bay 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Surface: ADL 028305&028306 555'FNL, 1221'FWL, Sec. 19,T11N, R14E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 570'FSL,3543'FWL,Sec.20,T11 N, R14E, UM April 7,2012 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 127'FSL,254'FWL, Sec.21,T11 N, R14E, UM 2560 31092' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 62.94' feet 15.Distance to Nearest Well Open Surface: x- 664139 y-5960659 Zone- ASP4 GL Elevation above MSL: 32.74' feet to Same Pool: 289' 16.Deviated Wells: Kickoff Depth: 11625' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 95 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) 3" 2-3/8" 4.6# L-80 STL 3620' 10380' 7792'ss 14000' 8955'ss 63 sx Class'G' 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): Effective Depth ND(ft): Junk(measured): 13004' 901Q' 11948' 12962' 9018' None Casing Length Size Cement Volume MD 1VD Conductor/Structural 110' 20"x 30" 12.9 cu vds Permafrost Concrete 110' 110' Surface 2681' 13-3/8" 4343 cu ft Arctic Set 2681' 2662' Intermediate 10957' 9-5/8" 1673 cu ft Class'G'. 130 cu ft Arctic Set 10957' 8287' Production Liner 979' 7" 600 cu ft Class'G' 10402'-11381' 7872'-8599' Liner 2660' 3-1/2 x 3-3/31"x 2-7/8" 126 cu ft Class'G' 10344'-13004' 7826'-9018' Perforation Depth MD(ft): 11770'-12950' Perforation Depth TVD(ft): 8931'-9018' 20.Attachments: 0 Property Plat IN BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis ®Diverter Sketch 0 Seabed Report 0 Drilling Fluid Program 0 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that th- fore!•14•4;;. ru- .nd correct. Contact Troy Jakabsky,564-4868 Printed Name J,,' n 'cy Title Engineering Team Leader Prepared By Name/Number: Signature ,/ Phone 564-4711 Date f'rZ3 Z Joe Lastufka,564-4091 1~ommi O ,, Ja Permit To Dr' API Number: Permi p r al te: See cover letter for Number: 103 0aas ' 50-029-20387-03-00 1j''Zi other requirements Conditions of Approval: If box is checked,� well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales: Er t Other: .* 3500 /0S:- OP —re.";,--- Samples Req'd: Oyes ErNo Mud Log Req'd: 0 Yes ErNo H2S Measures: Er Yes 0 No Directional Survey Req'd: ErYes 0 No '- / 2-61/ 2_ JO' APPROVED BY THE COMMISSION Date ,COMMISSIONER Form 10-401 Revised 07/2009 This permit valid for 24 months fp rzitoimir AAC 25.005 �� Submit In Duplicate .z 271zU Z_ To: Alaska Oil & Gas Conservation Commission From: Troy Jakabosky CTD Engineer bp Date: February 21, 2012 Re: C-12C PTD Request Approval is requested for a permit to drill a CTD sidetrack from well C-12C. Pre-CT Rig Work: The pre CTD work is planned to begin March 1, 2012. 1. W Check tubing hanger LDS. 2. W PPPOT-T to 5000 psi 3. D MIT-IA to 2000 psi, MIT-OA to 2000 psi. 4. S Drift for 3-3/16 CIBP to 11,940 MD. 5. S set 3-3/16" CIBP at 1 J6t!"MD, PT to 2500 psi. (11 7 00 n1D 6. S Run Dummy Whipstock Drift down to 11,700 MD. 7. E Set 3-3/16" Monobore Whipstock at 11,625 MD at 276 ROHS. 8. V PT tree (MV,SV,WV) 9. 0 Bleed production flow lines and GL lines down to zero and blind flange. -#3I Z-66 ¶ 10. 0 Remove wellhouse, and level pad. 11. V Set TWC (CIW 6-3/8 type J) -24 hrs prior to rig arrival PSA Rig Sidetrack Operations: (Scheduled to begin on April 7th, 2012 using Nordic Rig 1) 1. MIRU 35pop5` 2. NU 7-1/16" CT Drilling BOPE and test 3. Mill 2.75" single string window in the 3-3/16" liner at 11625'. 4. Drill Build: 3" bi-center bit 457 ft( 35°/100 planned) to 12,102 MD 5. Drill Lateral 3" bi-center bit 1,898 ft(12°/100) in Zone 1B/2A to a final TD of 14,000' MD. 6. Run and cement 2-3/8" L-80 liner leaving TOL/TOC @10,380 ft. PR) 7. Perform cleanout/log run with mill, motor. ZS98. MCNL run. L-? Pr Z S00(5 . Z/L - 625.- 9. . Perforate well (-500' planned) 10. Freeze protect well to 2500' MD. 11. Set BPV. ND 7-1/16" BOPE stack. Freeze protect tree and PT tree cap to 3500 psi. 12. RDMO 1. Post-Rig Work: 2. Pull BPV. 3. Run 4-1/2" liner top packer if needed, and test to 2,400 psi. 4. CT N2 lift 5. ASRC welltest and flowback 1 Mud Program: • Well kill: 8.4 ppg seawater/ brine. • Milling/drilling: 8.6 ppg Geo-VIS for milling window and drilling (-686 psi overbalance). Disposal: • All Class II drilling and completion fluids and all other Class II wastes will go to Grind & Inject at DS 4. • All Class I wastes will go to Pad 3 for disposal. Hole sizes: 3" 11,625' and — 14,000' and Liner Program: Solid, cemented, and perforated completion. • 2-3/8", L-80, 4.6 lb/ft STL liner 10,380' and— 14,000' and • Planned 13 bbls of 15.8 class G cement will be used for liner cementing (assuming 3" hole size to TD and 10% excess in open hole). TOC planned at 10,380 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 the 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 3500 psi. • The annular preventer will be tested to 250 psi and a minimum of 2500 psi. Directional • See attached directional plan. Maximum planned hole angle is 96°, inclination at kick off point is 22°. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property—31,092' and (North). • Distance to nearest well within pool—289 from C-29A. Anti-Collision • C-12 22' (ctr—ctr distance) Status:Parent Wellbore.Plugged and Abandoned • C-12B 1' (ctr—ctr distance) Status: Open perfs. Will be have a CIBP above perfs prior to drilling C-12C. • C-29A 421' (ctr—ctr distance) Status: Open perfs. Will be Locked Out/Tagged Out prior to drilling C-12C. Logging • MWD directional and Gamma Ray logs will be run over the open hole build section. • MWD directional, Gamma Ray and Resistivity logs will be run in the horizontal hole section. • Cased hole GR/CCL/MCNL logs will be run. Perforating • SWS 1.56", 6 spf, perf guns, 1-1/4" CSH work string • 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 the hole. Hazards • The maximum recorded H2S level on C pad was 38 ppm on well C-33A (4/06/2011). Reservoir Pressure • The reservoir pressure on C-12C is expected to be 3,249 psi at 8,800' TVDss (7.1 ppg equivalent) • Max expected surface pressure with gas (0.10 psi/ft) to surface is 2,369 psi. • A EMW of 8.4 ppg for this well will provide —594 psi over-balance to the reservoir. Troy Jakabosky CC: Well File Coiled Tubing Drilling Engineer Sondra Stewman/Terrie Hubble 564-4868 2 TREE= CW WELLHEAD= FMC . . SA NOTES:C-12B CTD DEPTHS ARE ELMD ACTUATOR= OTIS ORIG KB. ELEV = 62.94' ORIG BF. ELEV = 32.24' ORIG KOP= 2300' Max Angle= 93°@ 12170' 2004' —7"OTIS SSSVN,ID=5.962" Datum MD= 11663 4 (Datum TVD= 8800'SS 2564' —9-5/8"DV PKR 13-3/8"CSG,72#, L-80, ID=12.347" 2681' Minimum ID =2.30" @ 10354' MILLED SELRT BUSHING 7"TBG,26#, L-80, U4S,.0383bpf, ID=6.276" — 10278' I 10278' 1-17"20'PBR 110298' H9-5/8"x 7"GUIBERSON PKR,ID=3.833" 10345' —4-1/2"OTIS X NIP, ID=3.813" I I 10338' —ELMD X NIP(CTD ST) 1"1 10344' —3-1/2"DEPLOYMENT SLEEVE, ID=3.00" 10376' —4-1/2"XN NIP, ID-=3.80" MILLED XX/XX/XX(BEHIND PIPE) ' 3-1/2"LNR,9.3#, L-80,STL, .0087bpf, ID=2.992" — 10395' 10402' -ITOP OF 7"BKR LNR HGR 4-1/2"TBG, 12.6#, L-80, HYD,.0152bpf, ID=3.958" — 10438'1 / 10396' 3-1/2"x 3-3/16"XO, ID=2.80" 10438' —14-1/2"WLEG 10433' —j ELMD U LOGGED 9-5/8"CSG,47#, L-80, ID=3.958" H 10957' E---4 MILLOUT WINDOW(C-12B): 11381'- 11389' 7"LNR,29#, L-80, ID=6.184" --I 11381' 3-3/16"LNR,6.2#,L-80,TCII, .0076bpf, ID=2.80" 12257' B 11948' —3-3/2"CIBP(03/10/11) 12258' —3-3/16"x 2-7/8"XO, ID=2.377" PERFORATION SUMMARY REF LOG: SLB MCNL 09/19/09 ANGLE AT TOP PERF: °@ 11770' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2" 6 12010- 12170 C 09/20/09 2" 6 12270- 12950 C 09/20/09 2" 6 11770- 11775 0 04/29/11 PBTD — 12964' 1 2-7/8"LNR,6.16#, L-80,STL, .0058bpf, ID=2.441" —{ 13004' A� DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/20/79 ORIGINAL COMPLETION 05/12/11 JNL/PJC CIBP CORRECTION WELL: C-12B 07/20/98 WHITLON CTD SIDETRACK(C-12A) PERMIT No: 2090850 09/21/09 NORDIC2 CTD SIDETRACK(C-12B) API No: 50-029-20387-02 11/09/09 DJ/SV DRAFT FINAL SEC 19,T11N,R14E,555'SNL&1221'WEL 03/11/11 HJW/PJC SET CIBP(03/10/11) 05/10/11 RRD/PJC ADPERF(4/29/11) BP Exploration(Alaska) W TREE= C C C�12 B WELLHEAD= FMC SA 'NOTES:C-1 2B CTD DEPTHS ARE ELMD ACTUATOR= OTIS ORIG KB.ELEV= 62.94' CTD Pre-Rig ORIG BF.ELEV= 32.24' ORIG KOP= 2300' Max Angle= 93' 12170' O - 2004' 17"OTIS SSSVN,ID=5.962" Datum MD= 11663 Datum ND= 8800'SS - - = 2564' -19-5/8"DV PKR 13 3/8"CSG,72#,L 80,ID12.347" H 2681' Minimum ID =2.3" a@ 10354' Milled SELRT Bushing 7"TBG,26#,L-80,IJ4S,.0383bpf,ID=6.276" J- 10278' —1 10278' -17"20'PBR 10298' -19-5/8"x 7"GUIBERSON PKR, ID=3.833" _ 10345' -14-1/2"OTIS X NIP,ID=3.813" 10338' -J ELMD X NIP(CTD ST) ■ 1• 0344' --13-1/2"DEPLOYMENT SLEEVE,ID=3.00" • 10376' 4-1/2"XN NIP,ID-=3.80" MILLED XX/XX/XX(BEHIND PIPE) 3-1/2"LNR,9.3#,L-80,STL,.0087bpf,ID=2.992" - 10395' I — ' 10402' -I TOP OF 7"BKR LNR HGR 4-1/2"TBG,12.6#,L-80,HY D,.0152bpf,ID=3.958" - 10438' / 1• 0396' -13-1/2"x 3-3/16"XO,ID=2.80" 1• 043W -14-1/2"WLEG 10433' -{ELMD TT LOGGED 9-5/8"CSG,47#,L-80,ID=3.958" I-I 1095T I--4 T'LNR,29#,L-80,D=6.184" -I 11381' 2/y 7// 3-3/16"monobore WS(pre-rig)@ 11,625'276°ROHS CIBP to abandon perfs(pre-rig)@ agg 24` 3-3/16"LNR,6.2#, L-80,TCII,.0076bpf,ID=2.80" 12257' B 11948' -3-3/2"CIBP(03/10/11) 12258' -3-3/16"x 2-7/8"XO, ID=2.377" PERFORATION SUMMARY REF LOG: SLB MCNL 09/19/09 ANGLE ATTOPPERF: "p 11770' Note: Refer to Production DB for historical perf data MILLOUT WINDOW(C-12B): 11381'-11389' SIZE SPF INItHVAL Opn/Sqz DATE 2" 6 12010-12170 C 09/20/09 2" 6 12270-12950 C 09/20/09 2" 6 11770-11775 0 04/29/11 PBTD - 12964' .4 2-7/8"LNR,6.16#,L-80,STL,.0058bpf, ID=2.441" -I 13004' &A4 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/20/79 ORIGINAL COMPLETION 05/12/11 JNUPJC GBP CORRECTION WELL: 07/20/98)NHITLOIA CTD SIDETRACK(C-12A) 11/29/11 WJH proposed CTD sidetrack PERMIT No: 2090850 09/21/09 NORDIC2 CTD SIDETRACK(C-12B) API No: 50-029-20387-02 11/09/09 DJ/SV DRA FT FINA L SEC 19,T11 N,R14E,555'SNL&1221'WEL 03/11/11 HJW/PJC SET CIBP(03/10/11) 05/10/11 RRD/PJC ADPERF(4/29/11) BP Exploration(Alaska) rnri_ • ' CNV NELLHEAD= FMC C -1 _1 2 C SA NOTES:C-12B CTD DEPTHS ARE ELMD ACTUATOR= OTIS DRIG KB. ELEV 62.947 proposed CTD sidetrack DRIG BF. ELEV 32.24' DRIG KOP= 2300' Max Angle= 3°@ 12170' 2004' —17"OTIS SSSV N, D=5.962" Datum MD= 11663 O Datum TVD= 8800'SS _ 2564' —19-5/8"DV PKR 13-3/8"CSG,72#, L-80,ID=12.347" H 2681 —, Minimum ID = 1.78" @ 10380' 3" Deployment Sleeve 7"TBG,26#, L-80, U4S,.0383bpf,ID=6.276" —I 10278' 10278' H 7"20'PBR 10298' H 9-5/8"x 7"GUIBERSON PKR, ID=3.833" 10345' —14-1/2"OTIS X NIP,ID=3.813" I I 10338' —I ELMD X NIP(CTD ST) TSGR= 11,174' MD BCGL = 11,594' MD 10344' H3-1/2"DEPLOYMENT SLEEVE, ID=3.00" 38° I I 10376' 4-1/2"XN NIP,ID-=3.80" Top of 2-3/8"liner @-10,380' l ) MILLED XX/XX/XX(BEHIND PIPE) 3-1/2"LNR,9.3#, L-80,STL,.0087bpf, ID=2.992" H 10395' --s— 10402' —ITOP OF 7"BKR LNR HGR 4-1/2"TBG, 12.6#,L-80, HYD,.0152bpf, ID=3.958" H 10438' • / 10396' H3-1/2"x 3-3/16"XO, ID=2.80" 10438' H4-1/2°WLEG 10433' -I ELMD TT LOGGED 9-5/8"CSG,47#,L-80, ID=3.958" H 10957' HA 7"LNR 29#,L-80, ID=6.184" H 11381' 2-3/8"liner with TD @ 14,000' 3-3/16"monobore WS(pre-rig)@ 11,625' CIBP to abandon perfs(pre-rig)@ 4-17990' 24 3-3/16"LNR,6.2#, L-80,TCII, .0076bpf,ID=2.80" — 12257' 8 11948' �3-3/2"CIBP(03/10/11) PERFORATION SUNNIARY 12258' 3-3/16"x 2-7/8"XO, ID=2.377" REF LOG: SLB MCNL 09/19/09 ANGLE AT TOP PERF: °@ 11770' Note: Refer to R-oduction DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE MILLOUT WINDOW(C-12B): 11381'-11389' 2" 6 12010-12170 C 09/20/09 2" 270-12775 C 09/20/09 2" 6 117770-11775 0 04/29/1111 PBTD H 12964' 1.4 2-7/8"LNR,6.16#,L-80,STL, .0058bpf, ID=2.441" H 13004' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/20/79 ORIGINAL COMPLETION 05/12/11 JNL/PJC GBP CORRECTION WELL: O-12C 07/20/98 INHITLOWCTD SIDETRACK(C-12A) 11/29/11 WJH pro, ....,;,, CTD sidetrack PERMIT No: 2090850 09/21/09 NORDIC2 CTDSIDETRACK(C-12B) API No: 50-029-20387-02 11/09/09 DJ/SV DRAFT FINAL SEC 19,T11 N, R14E,555'SNL&1221'WEL 03/11/11 HJW/PJC SET CIBP(03/10/11) 05/10/11 RRD/PJC ADPERF(4/29/11) BP Exploration(Alaska) y v `� }": ' s ; t' k '`1 " f S4JniR`y^ sv R, y ' r ^„ Vi , ,t ;oi,,,,,,- y,v.,.,. 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YOR , j Ew � 1 a oma I lI U 4 1NEU= I " Ipa - 0c., L " • M I N T 6 N I J r L s v 8 T 1 - �/ i o ' " 4-r .. 8' - 4 IP , ,. . ‘',F. ik . .a oN3 a` 3 8 _ a �g :959 !< £9,8 8 1 WV w I. a A , U c S U ___ ca. lo,r 8i55 !I , q , i , . , , , , 1 , - 0 - = . 8 e,. . 1 .,, , , ? 4 Y 4w. 4 n V `4 (ui/8 OSi) (+)g.IoI�I/(-)gnos" EMU BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB C Pad C-12 / Lat: 070°17'55.857"7 Long: 0148°40'14.316"W C-12C Plan 4 Travelling Cylinder Report 08 December, 2011 I g V1I BP BAKER bp HUGHES Travelling Cylinder Report0 INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well 0-12-Slot 12 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB C Pad MD Reference: 14: 12 11/14/1979 00:00 @ 62.90ft(generic drilling rig: Site Error: 0.00ft North Reference: True Reference Well: C-12 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore C-12C Database: EDM.16-ANC Prod-WH24P Reference Design: Plan 4 Offset TVD Reference: Offset Datum Reference Plan 4 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of referE Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 11,600.00 to 14,000.00ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,597.01ft Error Surface: Elliptical Conic Survey Tool Program Date 12/8/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 29.90 11,600.00 Gyro(C-12B) GYD-CT-CMS Gyrodata cont.casing m/s 11,600.00 14,000.00 Plan 4(C-12C) MWD MWD-Standard .., . Casing Points `" `a '' `-'""'` '., x Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 14,000.00 8,955.04 2 3/8"CTD Liner 2.375 3.000 CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 12/8/2011 3:31:1 8PM Page 2 of 22 COMPASS 2003.16 Build 73 BAKER• BP b HUGHES Travelling Cylinder Report p INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB C Pad MD Reference: 14:12 11/14/1979 00:00 @ 62.90ft(generic drilling rig; Site Error: 0.00ft North Reference: True Reference Well: C-12 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore C-12C Database: EDM.16-ANC Prod-WH24P 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 (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB C Pad C-02-C-02-C-02 Out of range C-03-C-03-C-03 Out of range C-03-C-03A-C-03A Out of range C-03-C-03B-C-03B Out of range C-04-C-04-C-04 Out of range C-04-C-04A-C-04A Out of range C-04-C-04APB1 -C-04APB1 Out of range C-04-C-04APB2-C-04APB2 Out of range C-04-C-04APB3-C-04APB3 Out of range C-04-C-04B-C-04B Out of range C-04-C-04B-Plan#5 Out of range C-09-C-09-C-09 Out of range C-09-C-09A-C-09A Out of range C-09-C-09A-Plan#5 Out of range C-10-C-10-C-10 Out of range C-10-C-10A-C-10A 11,924.36 12,360.00 696.44 245.75 454.05 Pass-Major Risk C-10-C-10B-C-10B 11,885.52 11,775.00 1,386.12 233.63 1,152.61 Pass-Major Risk C-11 -C-11 -C-11 Out of range C-11 -C-11A-C-11A Out of range C-11 -C-11 A-C-11 A wp05 Out of range C-12-C-12-C-12 12,109.96 11,950.00 22.18 26.19 -1.70 FAIL-Major Risk C-12-C-12A-C-12A 12,108.77 11,925.00 99.71 20.29 86.22 Pass-Major Risk C-12-C-12APB1 -C-12APB1 12,094.07 11,900.00 100.81 19.43 88.44 Pass-Major Risk C-12-C-12B-C-12B 11,625.00 11,625.00 0.00 4.51 -3.87 FAIL-Major Risk C-13-C-13-C-13 Out of range C-13A-C-13A-C-13A Out of range C-15-C-15-C-15 Out of range C-15-C-15A-C-15A Out of range C-16-C-16-C-16 Out of range C-16-C-16APB1 -C-16APB1 Out of range C-16-C-16B-Plan#8 Out of range C-18-C-18-C-18 Out of range C-18-C-18A-C-18A Out of range C-18-C-18B-C-18B Out of range C-18-C-18BPB1 -C-18BPB1 Out of range C-19-C-19-C-19 Out of range C-19A-C-19A-C-19A Out of range C-19B_DIMS-C-19B-C-19B Out of range C-19BPB1 -C-19BPB1 -C-19BPB1 Out of range C-20-C-20-C-20 Out of range C-20-C-20A-C-20A Out of range C-20-C-20B-C-20B Out of range C-20-C-20C-C-20C Out of range C-29-C-29-C-29 12,225.00 10,825.00 1,315.04 746.29 657.28 Pass-Major Risk C-29-C-29A-C-29A 13,915.78 13,350.00 421.96 1,041.71 -618.34 FAIL-Major Risk C-31 -C-31A-C-31A 13,625.00 12,625.00 962.88 323.75 643.20 Pass-Major Risk C-31 -C-31 B-C-31B 13,150.00 13,000.00 719.02 288.81 430.30 Pass-Major Risk C-32-C-32-C-32 Out of range C-32-C-32A-C-32A Out of range C-32-C-32B-C-32B Out of range C-32-C-32C-C-32C Out of range C-33-C-33-C-33 Out of range C-33-C-33A-C-33A Out of range CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 12/8/2011 3:3/:18PM Page 3 of 22 COMPASS 2003.16 Build 73 • BA HR r BP HUGHES Travelling Cylinder Report bp INTEQ Company: North America-ALASKA-BP Local Co-ordinate Reference: Well C-12-Slot 12 Project: Prudhoe Bay TVD Reference: Mean Sea Level Reference Site: PB C Pad MD Reference: 14: 12 11/14/1979 00:00 @ 62.90ft(generic drilling rig; Site Error: 0.00ft North Reference: True Reference Well: C-12 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore C-12C Database: EDM.16-ANC Prod-WH24P 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 (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB C Pad C-33-C-33A-Plan#2 Out of range C-33-C-33PB1 -C-33PB1 Out of range C-35-C-35-C-35 Out of range C-35-C-35A-C-35A Out of range C-35-C-35B-C-356 Out of range C-36-C-36-C-36 Out of range C-36-C-36APB1 -C-36APB1 Out of range C-36A-C-36A-C-36A Out of range C-37-C-37-C-37 Out of range C-37-C-37A-C-37A Out of range C-37-C-37APB1 -C-37APB1 Out of range C-37-C-37APB2-C-37APB2 Out of range C-37-C-37B-C-37B Out of range C-38-C-38-C-38 Out of range C-42-C-42-C-42 Out of range C-42-C-42A-C-42A Out of range PB DS 07 07-13-07-13C-07-13C Out of range 07-13-07-13CPB1 -07-13CPB1 Out of range CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 12/8/2011 3:31:18PM Page 4 of 22 COMPASS 2003.16 Build 73 11 1 .I ti g I M a 411 „, _g . o gg E. u.a. ca. 8 Y. _ 141 9 v Rsg g 1Mill I LLd v ° II 111 g m� U 0 11 VIII — � !_, A A 1 i11 13F-44' 1SII ° III, e � - vxF • . 13 S U _3 G = U 1 ti f 1Eg k CD a Q o €3 _ a. 1 41° I o a l V I p U III O II : I - IOII J a I 1111 111 LL a t ; s �� �� m _ U , Q ICC �i HU ° IU C E I 8 1 II G > 1 «o E e .z 'o U(7 O 1— ,'; > WIE 1 I r i Q I u v J o =L. Illi ' 0 11 N V • ilii D LL > 11=11 I— r n Si ` ! 111Si J o I I EIli E f ' _ p 111 d 9 WCe kill IF , & 1 'm v11 II WI II • • �/ 01 �, i _ , 1 1611 > I U I 1 r I V, 1 I NM co ,< - — 11--1.= ig i wilm mace, to , i_ n: zi , F j I as Q C.) I ,'2_ 1 I Ir V I p m I _ IX I 1 .. Z ” 8 nl 2 I l III '` I I.. III a 1 : i' ] I[i'i : II sa A i .a 111 li i' °'� .E 111 111 Aila �' ill I SII I T Land Administration System Page 1 of 1 Alaska DNR Case Summary File Type:ADL File Number: 28305 See Township,Range,Section and Acreage? ° Yes No New Search I File: ADL 28305 '"'P Search for Status Plat Updates As of 02/24/2012 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 08/19/1965 TotalAcres: 2480.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date:12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction:AA-NRB ASSIGNMENT APPROVED Meridian: U Township: o11N Range: 014E Section: 17 Section Acres:64o Search Plats Meridian: U Township: o11N Range: 014E Section: 18 Section Acres:599 Meridian: U Township: onN Range: o14E Section: 19 Section Acres:601 Meridian: U Township: ouN Range: 014E Section: 20 Section Acres:64o Legal Description 05-28-1965*CC SALE NOTICE LEGAL DESCRIPTION*** C14-126 uN 14E UM 17,18,19,20 2480.00 U-3-7 End of Case Summary Department of Natural Resources 550 W.7th Ave,Suite 1260,Anchorage,AK 99501-3557 Phone:907-269-8400 Fax:907-269-8901 TTY:907-269-8411 State of Alaska I®2010 l Webmaster http://dnr.alaska.gov/projects/las/Case_Summary.cfin?FileType=ADL&FileNumber=283 0... 2/24/2012 Land Administration System Page 1 of 1 Alaska DNR Case Summary File Type:ADL File Number. 28306 See Township,Range,Section and Acreage? O Yes No New Search File: ADL 28306 '"V Search for Status Plat Updates As of 02/24/2012 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATI N:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 09/14/1965 Total Acres: 2560.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date:12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction:AA-NRB ASSIGNMENT APPROVED Meridian: U Township: onN Range: 014E Section: i5 Section Acres:64o Search Plats Meridian: U Township: onN Range: 014E Section: 16 Section Acres:64o Meridian: U Township: onN Range: o14E Section: 21 Section Acres:640 Meridian: U Township: onN Range: 014E Section: 22 Section Acres:640 Legal Description 05-28-1965***SALE NOTICE LEGAL DESCRIPTION*** C14-127 uN 14E UM 15,16,21,22 2560.00 U-3-7 End of Case Summary Department of Natural Resources 550 W.7th Ave,Suite 1260,Anchorage,AK 99501-3557 Phone:907-269-6400 Fax 907.269.8901 TTY:907-289-6411 State of Alaska 11©2010 11 Webmaster http://dnr.alaska.gov/projects/las/Case_Summary.cfm?FileType=ADL&FileNumber=283 0... 2/24/2012 VER IZED O S DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME 6-/vPe PTD# ✓ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: .? '6 POOL: .7ez O.4-OZ ).10/G Check Box for Appropriate Letter/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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