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209-124
a STATE OF ALASKA •ALASKA OIL AND GAS CONSERVATION COMM N REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon 0 Plug Perforations H Fracture Stimulate ❑ Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate ® Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for Redrill 0 Perforate New Pool ❑ Repair Well 0 Re-enter Susp Well 0 Other S t--/-C/.OP I 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 209-124 3. Address: P.O.Box 196612 Anchorage, Development El Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number. 50-029-21988-03-00 7. Property Designation(Lease Number): ADL 0028326 8. Well Name and Number: PBU 05-25C 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: kyr Total Depth: measured 11929 feet Plugs measured 10880/11470 feetR EC E l s D true vertical 9049 feet Junk measured feet AUG 1 2017 Effective Depth: measured 10880 feet Packer measured See Attachment feet true vertical 9048 feet Packer true vertical See Attachment feet AOGCO Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 78 20"94#H-40 41-119 41-119 1530 520 Surface 3458 10-3/4"45.5#J-55 39-3497 39-3496 3580 2090 Intermediate 9187 7-5/8"29.7#L-80 38-9225 38-8487 6890 4790 Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 10166-10262 feet 10289-10321 feet 10321-10385 feet 10979-11359 feet 11535-11870 feet True vertical depth: 9041-9043 feet feet 9044-9046 feet 9046-9048 feet 9050-9053 feet 9051-9049 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#L-80 36-8817 36-8139 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): p�y try Treatment descriptions including volumes used and final pressure: SCANNED NOV O V 0 7 2017 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 365 31104 54 980 624 Subsequent to operation: 251 39047 15 980 460 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations a Exploratory 0 Development p Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil El Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Oestgaard,Finn Contact Name: Oestgaard,Finn Authorized Title: Product' Engineer Challe er Contact Email: Finn.Oestgaard@bp.com Authorized Signature: Date:/S/(k(I? Contact Phone: +1 907 564 5026 Form 10-404 Revised 04/2017 I TL /Q/6, / P'7,1(07, RB DMS t / AUG 2 5 2017 Submit anginal Only • • Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue RECEIVED Anchorage, AK 99501-3572 AUG 21 2017 AOGCC RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary August 10, 2017 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for Setting of a Plug and Adding of Perforations for Well PBU 05-25C, PTD # 209-124. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 • • Packers and SSV's Attachment PBU 05-25C SW Name Type MD TVD Depscription 05-25C TBG PACKER 3890.78 3889.15 4-1/2" Baker S Packer 05-25C TBG PACKER 8762.07 8091.91 4-1/2" Baker S Packer 05-25C TBG PACKER 8821.1 8142.55 5-1/2" BAKER ZXP PACKER 05-25C PACKER 9442.24 _ 8681.16 3-1/2" Baker KB Top Packer • • .O O OM O O ooco 0 C N LO N d CO U CD i COCOCD D - V O CO mr M CO CO O I,- CO CO CO r— L() c) a) O CO CO N N d' CO d I� L[) LO O N— CO CO CO CO CO CA CO H I� CO CO C) co co co CA co co -1- co CD C) O CO O CO O • L!) r N 0) NN- O) N Lf) I- CO. O e- E N O N N O M a) d) C7) co) O Q N L� N- ON N- CO d CO CO CO CO CO 0 CO C p • co I- 0. LL9 O O O O O CO CO O 00 rin —I O #k4t ms CIS wCA - - fV NI CV DO - V O M Zo v.) N p ti " to �r ON-CO 00 LO CO N- N M C) 01 CO C J M Or's M M N O W d' C H W UW V a LL Ce Cr Z Z W W W W W W Q Z Z Z Z 0CnZJJJJI— • ! NC _ J N = 0 2 Z Q 0. N a) na co -,- rn.= 0 Qm 0C W t') = O2 s- 0_ a)O - O Oco CD u) t L � p "' C_ 0 r- C° c0a ma 0 a) M 0 a• � � � � �' O• -a > o - - C 3 J � a> -- .- x a m 0 -= a2) co U o I— o � "a0 < m — o c � U U .N o WW 0 V = V O 22 > O a) • > +J 2 U `� N N N O N O O a Q X30 omO c .r tea) cc � E a °) " La F- comn- o -a 0 0 = 0 - > . -a Om -ci 30 WoEn c°) o � M � 0V °� 2 ONab Qx- m a) M .- X N Q � ° O > 73 LL _ � v e, •- + O. OoaF- C U 0 L c0 a) C c0 _ c0 U) 'a N cas . N _a .- .c c0 OLo c C N ; co . b N U — °- a) TS N = _ cu O wi Et o � � � o a- . (1)) 0 N c a a ccti _a E 0 0 ETkk 44= a E .- 0 m m Ci)v o C o m 0 't c -0 ami .co a) a)u) CU # v) 1- O V O Q a) N a) a co N a) N--- E 'a N C0 N ~ 42 I w 5 N Q -a "a a) d E "a a) Q Q m , 7 C LO LO E co 0 ' to LL N CL a) L o +-' c 0_• CD co (B m O � � U a) 0_c0 -c O U c0 CU C.1 = 0 LCI)i, C - CO 0 O m ._ — vi o � O C n U c H d m o C 1 a C -E a m = 1:3 O CO Ili ( a`a) m t CO in ° 3 ,- m cx E •cw �; o • '� a�i "CO) `- a,= cu _ 5 � � E CL j u) a) a 'cp = a0 Ora : E Q`- N N _ = d . E c 0 Q-0 al .5) a) �'� o ° c � ° -a .= ol- LLO rnw � ov o CL 0 a.41) I- 00 o la 4.-. _ `, c � oyQ .5 , oci0 't ter- '.- c c) _ � � m � wa � � ,� oa ccoU cco � o 2 �o� E = � Um c .co - O J a) _ • o m 30 * Cl_ 7 0 13 N O CI I-- .Z11 2 a O -C 0 a3 1 _ rn-0 * m L •a m o ac) a c : a) U c .N ca 6 F- U = m a) 4- = . > ov) rna w a)a) fn O O Q t F- c0 C U a) O a r d) E 60 C 0 O O in a, .0 a) N U O U -c o O a) • " O �n C/) t 't _ o , - a) O - a) ) J c N a) - O Qo O '-' N c "a a) a) o .0 0 C0 v" -0 L •> O E U ca r a N a3 iC) 0_p a) � a_ •_ a) ,- N d 0 c0 N - O a) , « Q. E Y -c � � 0. p a) � 0 ' a) C N 3 , 0. 0. = a) s- N C O Y a) 0) m• to C N o 16 N CD IP 0 3 C (q Q CU Y ZO •}C-, rn 3o V a 2 a) b 5 m CL 0 o O > c sa m W • 0 0 c O o o F- - a) M F- o S o °a ciu ami ate) aci U F- o us _ Oo m o o U 1-- o m it 0 0 U2 .Na) UU -3UUa. o_fl 2 : U 20 3a. a4 - : 0 ) __ : - ca w oN- ti N- N- > 0 0 0 0 cn , 1- Op 0) 0 N co _a N �_ N N Cs, x CO F. cfl cO c0 N . U Q • TREE= 4'CM • Sq TBS: WB1ANGLE>Tr ACTUATOR= BA KSi CC 05-25C 9856.***ORIG WELL,05-25A&05-25B NOT KB E LEV= 72.1' SHOWN BELOW WHIPSTOCK'** BF-H_B/_ KOP= 4000' Max Angle= 940 Q 11027 2189' 4-112"CAMCO BAL O SSSVN,D=3.812' Datum MD= 9645' Datum TVD= 8800 SS GAS UFT MANDRELS 10-3/4"CSG,45.5#,J-55 BTC,D=9.950" H 3490' 1-41 ' ST MD WI) DEV TYPE VLV LATCH PORT DATE 1 3583 3582 2 KBMG-M DMY BK 0 11/18/00 L 2 3826 3824 5 IBMG-M SO BK 20 06/11/10 Minimum ID = 1.780" @ 9455' Z ,p 3893' H7-5/8"X 4-1/2"BKR PKR D=3.958' BTT DEPLOYMENT SLEEVE g g"—{ 8765' —17-5/8"X 4-1/2"BKR S-3 RQR,13=3.958" ' , 8798' H4-1/2"FES XN NP,D=3.725' 8818' F-7-5/8'X 5-1/2"BKR ZXP LTP w/TIEBACK SLV &HMC LNR HGR,D=4.892" 4-112"TBG,12.6#,L-80 BTC-P4 H 8820' _ / 8820' H4-1/2"YVLEG,D=3.958" .0152 bpf,D=3.958" 25'.....) 8840' —15-1/2"X 3-1/2"XO,D=2.992" ■ . 8874' —17-5/8'X 5-1/2"BKR HY-FLO 1 LNR HGR,0=4.892" 7-518"CSG,2517#,L-80 BTC-M Co=6.875' H 9220' } -, �... 5-1/2'MLLOUT WINDOW(05-25A) 9272' 5-1/2"LN2,17#,L-80 FL4S, —1 9272' .0232 bpf,0=4.892" 9442' —13-1/2"KB LTP,D=1.810' TOC —944T 1 4 1 9447' H2.70"BTT DEPLOYMENT SLV,D=1.780' 3-1/2"WHPSTOCK(05/23110) —I 9551' . K 3-1/2"MLLOIJT WINDOW(05-25C) 9551'-9557' 4 RA TAG — 9575' ''•♦ 4, 10880' H WFT CEP(06/29/17) 4,, 3-1/2'LNR,9.3#,L-80 NSCT/STL, H 11916' 1-- 4 Ai 14 14 11470' 2-3/8"WFDCEP(08/11/11) ,0087 bpf,D=2.992' PeFORATION SUMMARY RY / REF LOG: SINS CCL GRM NL ON 06/02/10 �11Ati ANGLE AT TOP PE RF:90" 10166' MID 11913' '40 Note:Refer to Production DB for historical perf dab SIZE SFF INTERVAL Opn/Sqz DATE 1.56" 6 10166-10262 0 06/30/17 2-3/8"LNR,4.7#,L-80 STL,.0039 bpf,13=1.995" H 11929' 1.56" 6 10289-10385 0 06/29/17 1.56" 6 10979-11359 C 06/06/10 1.56" 6 11535-11870 C 06/06/10 DATE REV BY COM, ITS DATE REV BY CONSENTS PRID-IOEBAY UNIT 01/12/90 NUE ORIGINAL COMPLETION 07/27/10 MAID DRLG DRAFT CORRECTIONS WELL: 05-25C 08/27/96 D9 RWO-SIDETRACK(05-25A) 08/13/11 CJS/PJC SET CEP(08/11/11) PERMIT Nb: 2091240 10/31/00 ? CTD-SIDETRACK(05-258) 07/03/17 JCF/JMD SET CBP&ADFERFS AR Nb: 50-029-21988-03-00 06103/10 NORa1C 1 CTD-SIDETRACK(05-25C) SEC 32,T11 N,R15E,2558'Ft&&173'FWL 06/06/10 SV ORLG HO CORRECTIONS 06/14/10 CJNSV GLV CIO(06/11/10) BP Exploration(Alaska) a 1 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. cO? - La 4 Well History File Identifier Organizing (done) ❑ Two -sided III111 III I III ❑ Rescan Needed 11 11111 11111 RESCAN DIGITAL DATA OVERSIZED (Scannable) Color Items: ❑ Di ettes, No. ❑ Maps: r peyscale Items: t P Other, No/Type:CP / 4O. 1 ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non - Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: i yli BY: Date: a. /s/ P Project Proofing III 11111 I BY: Maria Date: 141 ! /s/ f) Scanning Preparation c-,Z x 30 = (CO + " = TOTAL PAGES { f ^ (Count does not include cover sheet) t A BY: (Maria Date: dam, 5 - /s/ Scanning II I Production S g Stage 1 Page Count from Scanned File: t i O (Count does include cover eet) Page Count Matches Number in Scanning Preparation: YES NO BY: di- , Date: al ` t 1 /s/ nip Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. 11111111 III ReScanned 11111111 1 BY: Maria Date: /s/ Comments about this file: Quality Checked III 1111E11111 10/6/2005 Well History File Cover Page.doc • bp BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 May 11,2012 Mr. Jim Regg Alaska Oil and Gas Conservation Commission AUK° °l� 333 West 7 Avenue Anchorage, Alaska 99501 _o Q i 1+ Subject: Corrosion Inhibitor Treatments of GPB DS -05 0 c " - Dear Mr. Regg, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB DS- 05 that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Gerald Murphy, at 659 -5102. Sincerely, Mehreen Vazir BPXA, Well Integrity Coordinator • • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) DS-05 Date: 01/10/2012 Corrosion Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft gal 05 -01C 1990280 50029201360000 Sealed conductor NA NA N/A N/A NA 05 -02A 2012410 50029201440100 Sealed conductor NA NA N/A N/A NA 05 -03C 2000940 50029201470300 Sealed conductor NA _ NA N/A N/A NA 05 -04A 1960890 50029201520100 Sealed conductor NA NA N/A N/A NA 05 -05B 1961800 50029201700200 Sealed conductor NA NA N/A N/A NA 05 -06A 1950840 50029201730100 0 NA 0 N/A N/A NA 05 -07 1770130 50029202430000 Sealed conductor NA NA N/A N/A NA 05 -08A 2100550 50029202480100 Sealed conductor NA NA N/A N/A NA 05 -09A 1990140 50029202540100 Sealed conductor NA NA N/A N/A NA 05 -10C 2070980 50029202630300 Sealed conductor NA NA N/A N/A NA 05 -11A 1960970 50029202520100 Sealed conductor NA NA N/A N/A NA 05 -12B 2011800 50029202440200 Sealed conductor NA NA N/A N/A NA 05 -13B 2071460 50029202500200 Sealed conductor NA NA N/A N/A NA 05 -14A 1930820 50029202530100 Sealed conductor NA NA N/A N/A NA 05 -158 1960230 50029202550200 Sealed conductor NA NA N/A N/A NA 05 -168 1991000 50029202620200 Sealed conductor NA NA N/A N/A NA 05 -17B 1981040 50029202710200 Sealed conductor NA NA N/A N/A NA 05 -18A 1981740 50029219600100 Split conductor NA NA N/A N/A N/A 05 -19 1890780 50029219620000 1.4 NA 1.4 N/A 8.5 4/11/2011 05 -20B 2042340 50029221370200 1.2 NA 1.2 N/A 5.1 4/18/2011 05 -21A 1981180 50029219690100 Dust Cover NA NA N/A N/A N/A 05 -22B 2071260 50029219760200 3.1 NA 3.1 N/A 18.7 4/17/2011 05 -23B 2080610 50029219630200 1.2 NA 1.2 N/A 5.1 4/11/2011 05 -24A 2042180 50029222040100 1.5 NA 1.5 N/A 10.2 4/11/2011 ---- 05 -25C 2091240 50029219880300 6.0 NA 6.0 N/A 44.2 4/18/2011 05 -26A 2012210 50029219840100 0.5 NA 0.5 N/A 3.4 4/12/2011 05 -27B 2081910 50029219790200 Sealed conductor NA NA N/A N/A N/A 05 -28B 2060890 50029222080200 0.6 NA 0.6 N/A 1.7 4/10/2011 05 -30 1911150 50029222130000 1.2 NA 1.2 N/A 10.2 4/11/2011 05 -318 2100850 50029221590200 1.3 NA 1.3 N/A 6.8 4/12/2011 05 -32A 2020010 50029221900100 20.0 6.0 0.5 7/13/2011 3.4 7/23/2011 05 -338 2100810 50029221680200 4.8 NA 4.8 N/A 37.4 4/27/2011 05 -34A 2080370 50029222170100 3.9 NA 3.9 N/A 18.7 1/4/2012 05 -35A 2081340 50029221720100 2.7 NA 2.7 N/A 18.7 4/18/2011 05 -36A 2050700 50029221820100 2.3 NA 2.3 N/A 13.6 4/12/2011 05 -38 1961850 50029227220000 1.8 NA 1.8 N/A 15.3 4/10/2011 05 -39 1961730 50029227150000 1.3 NA 1.3 N/A 10.2 4/10/2011 05-40 1961590 50029227070000 1.6 N/A 1.6 N/A 16.2 1/10/2012 05 -41A 2031700 50029226960100 5.0 NA 5.0 N/A 58.7 1/8/2012 STATE OF ALASKA ALASKA AND GAS CONSERVATION COMMISSIA REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ❑ Repair Well ❑ Plug Perforations 0 Stimulate Other ❑ Performed: Alter Casing ❑ Pull Tubing ❑ Perforate New Pool ❑ Waiver❑ Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Perforate ❑ Re -enter Suspended Well ❑ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development El Exploratory ❑ r 209 -1240 3. Address: P.O. Box 196612 Stratigraphic Service ❑ 6. API Number: Anchorage, AK 99519 -6612 • 50- 029 - 21988 -03 -00 8. Property Designation (Lease Number) : 9. Well Name and Number: ADLO- 028326 PBU 05 -25C 10. Field /Pool(s): • PRUDHOE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 11929 feet Plugs (measured) 11470 feet true vertical 9048.32 feet Junk (measured) None feet Effective Depth measured 11913 feet Packer (measured) 3893, 8765 8818 9442 feet true vertical 9048.14 feet (true vertical) 3891. 8094 8139 8680 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 80' 20" 101# H-40 41 - 121 41 - 121 1650 650 Surface 3450' 10 -3/4" 45.5# J -55 40 - 3490 40 - 3489 3580 2090 Production 9875' 7 -5/8" 29.7# L -80 39 - 9914 39 - 9030 6890 4790 Liner 398' 5 -1/2" 17# L -80 8874 - 9272 8187 - 8526 7740 6280 Liner 739' 3 -1/2" 9.3# L -80 8818 - 9557 8139 - 8791 10160 10530 Liner 2487' 2 -3/8" 4.7# L -80 9442 - 11929 8680 - 9048 11200 11780 Perforation depth: Measured depth: SEE ATTACHED - _ _ _ True Vertical depth: �t .v, d $ _ _ Tubing: (size, grade, measured and true vertical depth) 4 -1/2" 12.6# L -80 38 - 8820 38 - 8141 Packers and SSSV (type, measured and true vertical depth) 4 -1/2" Baker S -3 Perm Packer 3893 3891 4 -1/2" Baker S -3 Perm Packer 8765 8094 5 -1/2" BAKER ZXP PACKER 8818 8139 3 -1/2" Baker KB Top Packer 12. Stimulation or cement squeeze summary: RECEIVED' Intervals treated (measured): AUG 31 V31i ssion Treatment descriptions including volumes used and final pressure: mot' ry Gas " rte mi 13. Representative Daily Average c ion fSr Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing pressure Prior to well operation: 436 29,734 4 1,344 Subsequent to operation: 546 36,224 5 764 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory Development IS • Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil • IS Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAGE] 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: NA Contact Joe Lastufka Printed Na a Lastu Title Petrotechnical Data Technologist Signat ' " .. Phone 546 -4091 Date 8/31/2011 RBLMS SEP 01 1011 - l . ( Form 10 -404 Revised 10/2010 t_ _ `1 Submit Original Only • • 05 -25C DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY :, 4A 8/10/2011; CTU #8 w/ 1.50" CT (CTV =30.2) ;Scope: Set CIBP for GSO !Weekly BOPE test w/ no failures. Knock down WHP. RIH w/ 1.75" OD drift assy to =11600'. RIH w/ PDS logging tool and log 11550 -9300' for coil flag. Corrected +31' to , original drilling depth log, & SLB June 2, 2010 Memory log. RIH w /CIBP. « <Job In Progress »» Cont'd on 8 -11 -11 WSR. 8/11 /2011; CTU #8 w/ 1.50" CT (CTV =30.2) Scope of work: Jewelry Log /drift & set CIBP. fCont. RIH & set WFD CIBP a(7, 11,470'. Set down 3K on plug, POOH. FP to 2500' iw /50/50 meth. RD, MOL. « « <JOB COMPLETE »» FLUIDS PUMPED BBLS 176 1% KCL 87 50/50 METH 263 TOTAL TREE _ • 4" CI FMC SAFETY NOT ELL ANGLE > 70° @ ACTUATOR = —BAKER—C— 0 5-25C SHOWN BELOW WHIPSTOCK*** 05 -258 NOT KB. ELEV = 72.1' BF. ELEV = ' f KOP = _4000' Max Angle = 94 @ 11022' f 2189' I- -14 -1/2" CAMCO BAL -O SSSVN, ID = 3.812" 1 Datum MD = 9645' Datum "ND = 8800' SS 110 -3/4" CSG, 45.5 #, J -55 BTC, ID = 9.950" H 3490' I - 4 ST MD GAS LIFT MANDRELS TVD DEV TYPE VLV LATCH PORT DATE 1 3583 3582 2 KBMG -M DMY BK 0 11/18/00 ' 2 3826 3824 5 KBMG -M SO BK 20 06/11/10 Minimum ID = 1.780" @ 9455' $--1 3893' 1-17-5/8" X 4 -1/2" BKR S-3 PKR, ID = 3.958" I BTT DEPLOYMENT SLEEVE Zi--- 8765' H7 -5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.958" I 8798' H4 -1/2" HES XN NIP, ID = 3.725" 1 8818' I — 7-5/8" X 5-1/2" BKR ZXP LTP w /TIEBACK SLV & HMC LNR HGR, ID = 4.892" 4 -1/2" TBG, 12.6 #, L -80 BTC-M, --I 8820' I i ' 1 1 8820' 1 WLEG, ID = 3.958" I .0152 bpf, ID = 3.958" 8840' H5_1/2" X 3-1/2" XO, ID = 2.992" I . 8874' H7 -5/8" X 5 -1/2" BKR HY -FLO II LNR HGR, ID = 4.892" l 17-5/8" CSG, 29.7 #, L-80 BTC-M, ID = 6.875" H 9220' I • —I 5 -1/2" MILLOUT WINDOW (05 -25A) 9272' I 5 -1/2" LNR, 17 #, L -80 FL4S, --I 9272' I .0232 bpf, ID = 4.892" 9442' 1 KB LTP, ID = 1.810" I jTOC H — 9447' I 9447' 1 BTT DEPLOYMENT SLV, ID = 1.780" 13-1/2" WHIPSTOCK (05/23/10) I 9551' 1 3 -1/2" MILLOUT WINDOW (05 -25C) 9551' - 9557' IRA TA G I—! 9575' � i `.� _— _AM. - `4 ` 11470' 1 9551' - P (08(11/11) I 3-1/2" LNR, 9.3 #, L -80 NSCT /STL, — 11916' ,A 0087 bpf, ID = 2.992" Niiii ip p PERFORATION SUMMARY ∎ 1'■ . REF LOG: SWS CCL /GR/MCNL ON 06/02/10 '��� PBTD H 11 913' 4 .4 ANGLE AT TOP PERF: 91° @ 10979' Note: Refer to Production DB for historical perf data SIZE SPF , - 11 INTERVAL Opn /Sqz DATE I2 -3/8" LNR, 4.7 #, L -80 STL, .0039 bpf, ID = 1.995" I — I 11929' I 1.56" 6 10979 979 11359 0 06/06/10 1.56" 6 11535 - 11870 C 06/06/10 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/12/90 N28E ORIGINAL COMPLETION 07/27/10 RP /JMD DRLG DRAFT CORRECTIONS WELL: 05 -25C 08/27/96 D9 RWO - SIDETRACK ' 08/13/11 CJS/ PJC SET' CIBP (08/11/11) PERMIT No: 2091240 10/31/00 ? CTD - SIDETRACK (05 -25B) API No: 50- 029 - 21988 -03 -00 06/03/10 NORDIC 1 CTD - SIDETRACK (05 -25C) SEC 32, T11 N, R15E, 2558' FNL & 173' FWL 06/06/10 SV DRLG HO CORRECTIONS l 06/14/10 CJN/SV GLV C/0 (06/11/10) BP Exploration (Alaska) DATA SUBMITTAL COMPLIANCE REPORT 2/10/2011 Permit to Drill 2091240 Well Name /No. PRUDHOE BAY UNIT 05 -25C Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 21988 -03 -00 MD 11929 TVD 9048 Completion Date 6/3/2010 Completion Status 1 -OIL Current Status 1 -OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional Survey Yes DATA INFORMATION Types Electric or Other Logs Run: MWD DIR, GR, RES, GR / CCL / MCNL (data taken from Logs Portion of Master Well Data Maint i Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH / Type Med /Frmt Number Name Scale Media No Start Stop CH Received Comments L og Neutron 5 Blu 8596 11885 Case 8/11/2010 MCNL, Mem Lee GR, F CCL, TNN, TNF "'I ED C Lis 19997 - 11eutron 8585 11885 Case 8/11/2010 LIS Veri, GR, CNT Rpt LIS Verification 9230 11929 Open 8/30/2010 LIS Veri, GR, ROP, RAD, RAS, RPD, RPS D C Pds 20023 Induction /Resistivity 9230 11929 Open 8/30/2010 LIS Veri, GR, ROP, RAD, RAS, RPD, RPS Log/ Induction /Resistivity 25 Col 9551 11929 Open 8/30/2010 MD MPR, GR I Log Induction /Resistivity 5 Col 9551 11929 Open 8/30/2010 TVD MPR, GR -og Gamma Ray 25 Col 9551 11929 Open 8/30/2010 MD GR og Gamma Ray 5 Col 9220 11916 Open 8/30/2010 Depth Shift Monitor Plot • D C ,L -as-• As G Directional Survey 9528 11929 Open pt Directional Survey 9528 11929 Open Well Cores /Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments DATA SUBMITTAL COMPLIANCE REPORT 2/10/2011 Permit to Drill 2091240 Well Name /No. PRUDHOE BAY UNIT 05 -25C Operator BP EXPLORATION (ALASKA) INC API No. 50- 029 - 21988 -03 -00 MD 11929 TVD 9048 Completion Date 6/3/2010 Completion Status 1 -OIL Current Status 1 -OIL UIC N ADDITIONAL INFORON �' ' Well Cored? / N Daily History Received? N Chips Received? f -f-N-_ Formation Tops N Analysis Y N R • eceived? Comments: Compliance Reviewed By: Date: J.4 _t k __ • it OPERABLE: Producer 05 -25C (PT109124Q) Confirmed tubing integrity Page 1 of 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWelllntegrityCoordinator @bp.com] 7g1 l °1 Sent: Thursday, October 07, 2010 5:17 AM To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS FS1 OSM; AK, OPS FS1 DS Ops Lead; AK, OPS FS1 DS5 Operator; AK, OPS PCC EOC TL; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; Cismoski, Doug A; Engel, Harry R; AK, RES GPB East Production Optimization Engineer; AK, RES GPB West Production Optimization Engineer Cc: Holt, Ryan P (ASRC); AK, D &C Well Integrity Coordinator; Rico Hernandez, Claudia Subject: OPERABLE: Producer 05 -25C (PTD #2091240) Confirmed tubing integrity All, Producer 05 -25C (PTD #2091240) passed a TIFL after the IA pressure was found to have sustained casing pressure. The passing test verifies tubing integrity. Therefore, the well has been reclassified as Operable and may be placed on production when convenient for operations. Thank you, Torin Roschinger (alt. Jerry Murphy) Well Integrity Coordinator Office (907) 659 -5102 Harmony Radio x2376 Cell (406) 570 -9630 Pager (907) 659 -5100 Ext. 1154 From: AK, D &C Well Integrity Coordinator Sent: Wednesday, September 29, 2010 10:33 PM To: 'Maunder, Thomas E (DOA) ; 'Regg, James B (DOA)'; "Schwartz, Guy (DOA'; AK, OPS FS1 OSM; AK, OPS FS1 Facility OTL; AK, OPS FS1 DS Ops Lead; AK, OPS FS1 DS5 Operator; AK, OPS PCC EOC TL; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; Cismoski, Doug A; Engel, Harry R; AK, RES GPB East Production Optimization Engineer; AK, RES GPB West Production Optimization Engineer; Rico Hernandez, Claudia Cc: AK, D &C Well Integrity Coordinator; Holt, Ryan P (ASRC) Subject: UNDER EVALUATION: Producer 05 -25C (PTD #2091240) Sustained IA Pressure Above MOASP All, Producer 05 -25C (PTD #2091240) has been found to have sustained IA casing pressure above MOASP. The wellhead pressures were tubing /IA /OA equal to SSV /2050/20 on 09/27/2010. The well has been reclassified as Under Evaluation and may be produced under a 28 -day clock. The plan forward is to: 1. DHD: TIFL If TIFL fails, 2. Slickline: Install dummy gas lift valves and MITIA to 2500 psi A TIO plot and wellbore schematic are included for reference. « File: Producer 05 -25C (PTD #2091240) TIO Plot.doc » Please call if you have questions or concerns. Thank you, Gerald Murphy (alt. Torin Roschinger) Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 10/7/2010 UNDER EVALUATION: Producer 00C (PTD #2091240) Sustained IA Pre re Above MO... Page 1 of 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWelllntegrityCoordinator ©bp.com] Rev. i 6 Sent: Wednesday, September 29, 2010 10:33 PM i I b 1 ( To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS FS1 OSM; AK, OPS FS1 Facility OTL; AK, OPS FS1 DS Ops Lead; AK, OPS FS1 DS5 Operator; AK, OPS PCC EOC TL; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; Cismoski, Doug A; Engel, Harry R; AK, RES GPB East Production Optimization Engineer; AK, RES GPB West Production Optimization Engineer; Rico Hernandez, Claudia Cc: AK, D&Q Well Integrity Coordinator; Holt, Ryan P (ASRC) Subject: UNDER EVALUATION: Producer 05 -25C (PTD #2091240) Sustained IA Pressure Above MOASP Attachments: Producer 05 -25C (PTD #2091240) TIO Plot.doc; Producer 05 -25C (PTD #2091240) wellbore schematic.pdf All, Producer 05 -25C (PTD #2091240) has been found to have sustained IA casing pressure above MOASP. The wellhead pressures were tubing /IA/OA equal to SSV /2050/20 on 09/2772010. The well has been reclassified as Under Evaluation and may be produced under a 28 -day clock. The plan forward is to: 1. DHD: TIFL If TIFL fails, 2. Slickline: Install dummy gas lift valves and MITIA to 2500 psi A TIO plot and wellbore schematic are included for reference. «Producer 05 -25C (PTD #2091240) TIO Plot.doc» «Producer 05 -25C (PTD #2091240) wellbore schematic.pdf» Please call if you have questions or concerns. Thank you, - ? X7 6 LB o n 7p Gerald Murphy (alt. Torin Roschinger) _ 6��G Well Integrity Coordinator �' Office (907) 659 -5102 = Zoops; Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 to gTyp = Z 8 otc.— 10/6/2010 ° PBU 05-25C PTD #2091240 9/29/2010 TIO Pressures Plot Well: 05-25 /'--'------------------- - ---'----~--------- --- - -----'---'- ---- -- ----' `\ 4,000 ~�---- �00 -�- - � - m -�_- 2000 ' OOA OOOA On - - --- \""� 1 m�� ��� \jun 07/03/ 10 07/17/10 87/31/10 08/14/10 08/ 09/ 11/10 09/25/10 • INTEQ Log & Data Transmittal Form To: State of Alaska -AOGCC 333 W. 7 Ave. Suite 100 Anchorage, Alaska 99501 Attention: Christine Mahnken Reference: 05 -25C Contains the following. 1 LDWG Compact Disc (Includes Graphic Image files) 1 LDWG lister summary 1 color print — GR Directional Measured Depth Log (to follow) 1 color print — MPR/Directional TVD Log (to follow) 1 color print — MPR/Directional Measured Depth Log (to follow) LAC Job #: 3182181 Sent by: Debbie Hoke Date: 08/23/2010 Received by: C • Date: Makin Ailtka = ^. y PLEASE ACKNOWLEDGE RECEIPT BY SIGNING & RETURNING OR FAXING YOUR COPY FAX: (907) 267 -6623 Baker Hughes INTEQ ISM 7260 Homer Drive BAKER Anchorage, Alaska 99518 Direct: (907) 267 -6612 �(J INTEQ FAX: (907) 267 -6623 • • i BAKER HU MES Baker Atlas PRINT DISTRIBUTION LIST COMPANY BP EXPLORATION (ALASKA) INC COUNT Y NOKTH SLOPE BOKOUGH WELL NAME 05 -25C STATE ALASKA FIELD PRUDHOE BAY UNIT DATE 8/23/2010 THIS DISTRIBUTION LIST AUTHORIZED BY: DEBBIE HOKE SO #: 3182181 Copies of Copies Digital Copies of Copies Digital Each Log of Film Data Each Log of Film Data 2 Company BP EXPLORATION (ALASKA) INC 1 Company DNR - DIVISION OF OIL & GAS Person PETROTECHNICAL DATA CENTER Person CORAZON MANAOIS Address LR2- I Address 550 WEST 7TH AVE 900 E BENSON BLVD. SUITE 800 ANCHORAGE, AK 99508 ANCHORAGE, AK 99501 I Company EXXON MOBIL PRODUCTION CO Company Person FILE ROOM Person Address 800 BELL STREET Address EMB GSC 3082A HOUSTON, TX 77002 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 - I Data Disseminated By: BAKER ATLAS -PDC 17015 Aldine Westfield, Houston, Texas 77073 This Distribution List Completed By: ,909-13(--( Page 1 of 1 08/06/10 Schhimberger NO. 5580 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Mahnken ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD 1- 27/P -20 AYKP -00085 RST / 00 4 06/06/10 1 Clari el 1 - 01 -01C BB6M -00016 RST = 06/09/10 1 / 9 I 11.28A AYKP -00081 RST A a '� - 05/31/10 1 19 SfL i 05 -25C BCUE -00021 MCNL . — 06/02/10 1 f 9 1 Y -018 BAUJ -00024 MCNL 0 05/25/10 1 1 1 • 14 -07 BBKA -00035 RST .r , O C. 06/06/10 1 f 1 MPS -37 BCRC-00026 RST ,=- 0 'f( �) 06/21/10 1 f 1 , 15 -27A 10AKA0067 OH MWD/L EDIT 05/14/10 2 1 15- 27APB1 10AKA0067 OH MWD /LWD EDIT C l b ( 05/08/10 2 i l / & 1 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: • BP Exploration (Alaska) Inc. Alaska Data S Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambell Street, Suite 400 900 E. Benson Blvd. Anchorage, AK 99503 -2838 AUG : I ?010 Oil r, Gas f..;,'-ons. Commission And ° e, 9- 0 STATE OF ALASKA III ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: ® Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned ❑ Suspended 1b. Well Class: 20AAC 25.105 20AAC 25.110 ® Development ❑ Exploratory ❑ GINJ ❑ WINJ ❑ WAG ❑ WDSPL ❑ Other No. of Completions One ❑ Service ❑ Stratigraphic 2. Operator Name: 5. Date Comp., Susp., or Aband.: 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 6/4/2010 209 -124 f 3. Address: _ 6. Date Spudded: 13. API Number: P.O. Box 196612, Anchorage, Alaska 99519 -6612 5/24/2010 50 - 029 - 21988 - - 4a. Location of Well (Govemmental Section): 7. Date T.D. Reached: 14. Well Name and Number: Surface: 5/27/2010 PBU 05 -25C " 2558' FNL, 173' FWL, SEC. 32, T11N, R15E, UM 8. KB (ft above MSL): 72,13' 15. Field / Pool(s): Top of Productive Horizon: Prudhoe Bay Field / Ba 3952' FNL, 3373' FEL, SEC. 31, T11N, R15E, UM GL (ft above MSL): 34' Y Bay Total Depth: 9. Plug Back Depth (MD +TVD): Oil Pool 4874' FNL, 3422' FEL, SEC. 31, T11N, R15E, UM 11913' 9048' 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD +TVD): 16. Property Designation: I Surface: x- 697246 y - 5948888 Zone- ASP4 11929' 9048' ADL 028326 TPI: x- 693742 y- 5947403 Zone- ASP4 11. SSSV Depth (MD +TVD): 17. Land Use Permit: Total Depth: x- 693721 Y- 5946481 Zone- ASP4 None 18. Directional Survey: El 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 and printed information per 20 AAC 25.071): 22. Re- DrillLateral Top Window MD/TVD: MWD DIR, GR, RES, GR / CCL / MCNL 9551' 8785' 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. GRADE ToP BOTTOM ToP I BOTTOM SIZE CEMENTING RECORD PULLED 20" 101# H-40 Surface 110' Surface 110' , 30" 2150 # Poleset 10 -3/4" 45.5# J -55 Surface 3490' Surface 3490' 13 -1/2" 1000 sx CS III. 350 sx Class 'G'. 157 sx CS II 7 -5/8" 29.7# L -80 Surface 9220' Surface, 8483' 9 -7/8" 410 sx Class 'G' 5 -1/2" 17# L -80 8874' 9272' 8188' 8527' 6 -3/4" 155 sx Class 'G' 3 - 1/2" 9.3# L - 8818' 9551' 8140' 8785' 4 -3/4" 135 sx Class 'G' 2 -3/8" 4.7# L -80 9442' 11929' 8680' 9048' 3" 48 sx Class 'G' 24. Open to production or injection? ® Yes ❑ No 25. TUBING RECORD If Yes, list each interval open SIZE DEPTH SET (MD) PACKER SET (MD / TVD) (MD +TVD of Top & Bottom; Perforation Size and Number): 1.56" Gun Diameter, 6 spf 44/2 ", 12.6#, L -80 8820' 3893' / 3891' MD TVD MD TVD 8765' / 8094' 10979' - 11359' 9049' - 9052' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 11535' - 11870' 9050' - 9048' COMPLETION DEPTH INTERVAL (MD)I AMOUNT AND KIND OF MATERIAL USED '' 2200' Freeze Protect w/ McOH A . I r .,4I ,I 27. PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): June 13, 2010 Flowing Date of Test: Hours Tested: Production For OIL -BBL: GAS-MCF: WATER -BBL: CHOKE SIZE: GAS-OIL RATIO: 6/16/2010 4 Test Period 4 177 4,017 21 49 22,694 Flow Tubing Casing Press: Calculated OIL -BBL: GAS-MCF: WATER -BBL: OIL GRAVITY -API (CORR): Press. 1,156 1,320 24 -Hour Rate ♦ 1,062 24,099 128 Not Available 28. CORE DATA Conventional Core(s) Acquired? ❑ Yes ® No Sidewall Core(s) Acquired? ❑ Yes ® No If Yes to either question, list formations and intervals cored (MD +TVD of top and bottom of each), and summarize lithology and presence of oil, 'as or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory RE It 1 5 C 250.071. None JUL 0 8 2010 Alaska Oil & Oar Cara. Commission Form 10-407 Revised 12/2009 TINUED ON REVERSE 61 h f3 Original Only RBDMS J�lL 4 8 I d ubmit v r t o 6 29. GEOLOGIC MARKERS (List all formations and milks encountered): 30. •ORMATION TESTS NAME MD TVD Well Tested? ❑ Yes ® No Permafrost Top If yes, list intervals and formations tested, briefly summarizing test Permafrost Base results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. 23SB / Zone 2B 9635' 8863' None 22TS 9673' 8896' 21 TS / Zone 2A 9723' 8936' Zone 1B 9824' 8998' Zone 1A / TDF 9913' 9030' Zone 1A / Base Zone 1B 10983' 9049' Formation at Total Depth (Name): Zone 1B (From Base) 10983' 9049' 31. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. a?��� Signed: Terrie Hubble Q bi(464 Title: Drilling Technologist Date: PBU 05 - 25C 209 - 124 Prepared By Name/Number Terre Hubble, 564 - 4628 Welt Number Permit No. / Approval No. Drilling Engineer: Ron Phillips, 564 -5913 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item la: Classification of Service Wells: Gas Injection, Water Injection, Water- Altemating -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 TVD 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 • • North America - ALASKA- BP Page 1 of 2 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: MOBILIZATION (MOB) Start Date: 5/21/2010 End Date: 5/22/2010 X3- 00TWB -C (596,934.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/21/2010 21:30 - 21:45 0.25 MOB P PRE RD AND PREP TO MOVE RIG OFF OF WELL. 21:45 - 22:00 0.25 MOB P PRE PJSM WITH PAD OPPERATOR FOR MOVING RIG OFF OF WELL 22:00 - 23:00 1.00 MOB P PRE MOVE RIG OFF OF WELL AND CLEAN UP WELL HEAD. 23:00 - 23:10 0.17 MOB P PRE PJSM WITH SECURITY FOR RIG MOVE 23:10 - 00:00 0.83 MOB P PRE MOBILIZE RIG OFF OF DS 01 FOR DS 05 5/22/2010 00:00 - 01:30 1.50 MOB PRE CONTINUE RIG MOVE FROM DS 01 TO DS 05 01:30 - 02:00 0.50 MOB PRE POSITION RIG TO PULL OVER WELL 02:00 - 02:15 0.25 MOB PRE PJSM WITH PAD OPERATOR FOR PULLING OVER WELL 05 -25B 02:15 - 03:00 0.75 MOB PRE r POSITION RIG OVER WELL AND LEVAL UP. ACCEPT THE RIG TO 05 -25 AT 03:00 03:00 - 04:00 1.00 MOB PRE RU EQUIPMENT, GREASE TREE AND NU CROSS OVER FOR BOP TO TREE HEAD. 04:00 - 06:00 2.00 MOB PRE '— NU BOPS 06:00 - 08:00 2.00 MOB PRE RU 10FT LUBRICATOR. RU HOT TUB. INSTALL CHINA HAT. GET STACK MEASUREMENTS. POST BOP SCHEMATIC. SPOT SUPPORT EQUIPMENT. 08:00 - 09:30 1.50 MOB PRE RU GREASE CREW & TORQUE TREE BOTLS, RESERVE PIT SIDE OF TREE REQUIRED MINIMAL TIGHTENING. SIMULTANEOUSLY, TEST FLOOR VALVE PER BI- WEEKLY BOPE TEST, 250PSI & , 4 3500PSI. FILL PITS & MAKE MINOR ADJUSTMENT TO SLB PIT SENSORS. 09:30 - 15:50 6.33 BOPSUR PRE FILL BOP STACK WITH WATER. FUNCTION TEST, BOPE PER AOGCC REGS. SHELL TEST BOPE TO 250PSI /3500PSI - PASS. TEST BOPE PER AOGCC REGS, 250PSI & 3500PSI - PASS. lam! JOHN CRISP FROM AOGCC WAIVED WITNESS. PJSM FOR RU DSM LUBRICATOR & PULLING BPV. - - - - -- - - -- — - - -- - - 15:50 - 17:30 1.67 BOPSUR PRE OPEN TREE DOWN TO THE MASTER - 0 PSI. RU DSM LUBRICATOR. PRESSURE TEST 250PSI & 1000PSI. PULL BPV. SET TWC. STAB ON WELL WITH PULLING TOOL. 17:30 - 18:10 0.67 BOPSUR PRE PRESSURE TEST TREE TO 3500PSI - PASS. 18:10 - 19:05 0.92 RIGU PRE CREW CHANGE, SPILL CHAMP / WALK AROUNDS. AND PJSM FOR PUMPING SLACK AND CUTTING COIL 19:05 - 20:30 1.42 RIGU PRE CIRC OUT DIESLE FP IN COIL TO CB. TEST AND REBOOT ELINE STAB ON WELL AND REVERSE FOR SLACK MANAGMENT OF ELINE Printed 6/11/2010 3:31:32PM • • Naif-America - ALASKA - BP - Pages of 2 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: MOBILIZATION (MOB) Start Date: 5/21/2010 End Date: 5/22/2010 X3- 00TWB -C (596,934.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 21:00 0.50 BOPSUR PRE PT INNER REEL VALVE AND PACK OFFS TO 2500 PSI LOW AND 3500 PSI HIGH 21:00 - 00:00 3.00 RIGU PRE UNSTAB INJECTOR AND RU CTC CUT OFF 350 FT OF CT MU SLB KENDALL AND PULL TEST TO 25 K AND PT TO 3700 PSI MU BHI UQC AND TEST PT UQC TO 3500 PSI (23:05) Printed 6/11/2010 3:31:32PM 1 1 North America - ALASKA " -'BP Page 1 of Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 End Date: 5/27/2010 X3- 00TWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/23/2010 00:00 - 01:20 1.33 KILLW P WEXIT BULL HEAD INTO WELL WITH CLEAN 2% KCL STARTED WITH 4 BPM UNTILL PRESSURED UP TO 1000 PSI SLOWED PUMPS DOWN ACCORDINGLY TO STAY BELOW 2200 PSI STABLE AT 2.2 BPM 2250 PSI PUMPED AWAY 250 BBLS 01:20 - 01:45 0.42 KILLW P WEXIT FLOW CHECK WELL AND PJSM FOR MU OF WHIPSTOCK SETTING BHA WELL IS ON A SMALL VAC 01:45 02:25 0.67 STWHIP P WEXIT STAB ON WELL AND PUMP SLACK FORWARD 02:25 - 03:15 0.83 STWHIP P WEXIT Mll WHIPSTOCK SETTING BHA STAB ON AND TEST TOOLS RIH TO 100 FT AND BHI DEPTH ENCODER IS TRACKING NEG DEPTH . 03:15 - 03:40 0.42 STWHIP N HMAN 100.0 WEXIT , STOP AT 100 FT AND INSTALL THE BHI DEPTH ENCODER ON THE PROPER OUT PUT SHAFT. 03:40 - 05:40 2.00 STWHIP P WEXIT RIH AT 0.5 BPM WITH EDC OPEN 75 FT /MIN 05:40 - 06:15 0.58 STWHIP P WEXIT LOG FOR GR TIE IN FROM 9420 FT TO 9460 FT MADE +20 FT CORRECTION SHUT OFF PUMPS AND CLOSE THE EDC 06:15 - 06:30 0.25 STWHIP P WEXIT UP WT =33 K RIH WT =19,5 K RIH TO BIT DEPTH OF 9560.73 FT PU TO UP WT OF 31 K AND STOP PUMPS ON AND PRESSURE SHEARED OFF AT 3000 PSI AND WOB CAME UP TO 2400 #'S DHOB TOW IS AT 9550 FT AND 25 ROHS TF 06:30 - 08:20 1.83 STWHIP P WEXIT POOH SWAPING WELL BORE TO GEO VIS. 08:20 - 08:30 0.17 STWHIP P WEXIT FLOW CHECK WHILE CONDUCTING PJSM REGARDING LD WS SETTING TOOL & MU WINDOW MILLING BHA. 08:30 08:50 0.33 STWHIP P WEXIT POP OFF WELL. LD SETTING TOOL. 08:50 - 09:20 0.50 STMILL P WEXIT MU 2.80" WINDOW MILLING BHA. 09:20 - 11:10 1.83 STMILL P WEXIT 1 RIH WITH WINDOW MILLING BHA (BHA #2). CIRCULATE, 0.35BPM AT 1045PSI. 11:10 - 11:44 0.57 STMILL P WEXIT LOG DOWN FOR TIE -IN FROM 9470F WHILE CIR 0.32BPM AT 1415PSI, PLUS 20FT CORRECTION. 11:44 - 11:50 0.10 STMILL P WEXIT RIW = 19K. PUW = 33K W/ OUT PUMPS. DRY TAG AT 9153FT. PUW =30K W/ PUMPS. TAG WITH PUMPS AT 9551 FT 11:50 13:50 2.00 STMILL P WEXIT TIME MILL WINDOW FROM 9551FT PUMPING 1.52BPM AT 2650PSI FS & 100- 150PSI MW. PUMPING USED 8.56PPG GEO -VIS. WITH 0.5K STARTING WOB & 9.6PPG ECD. PVT = 293 MILL TO 9552.3FT f 5 _ 1 ►' 13:50 - 14:00 0.17 STMILL P WEXIT PUH & ZERO WOB. F 1 b Printed 6/11/2010 3:32:03PM • North America - A.ASM - BP Page 2 of 8 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 End Date: 5/27/2010 X3- 00TWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 16:25 2.42 STMILL P WEXIT EASE IN THE HOLE. TAG AT 9552.1 FT. CONTINUE TO TIME MILL WINDOW FROM 9552.1 FT PUMPING 1.51 BPM AT 2650PSI FS & 100- 150PSI MW. PUMPING USED 8.56PPG GEO -VIS. WITH 2K WOB & 9.57PPG ECD. INSTANTANEOUS STALL/PRESSURE SPIKE TO 3600PSI, BUT DROPPED OFF IMMEDIATELY TO FS. RESUME TIME MILLING WITH NO MOTOR WORK. FINALLY ACHIEVE MOTOR WORK AT 9552.5FT. MILL TO 9553.6FT. 16:25 - 16:30 0.08 STMILL P WEXIT PUH (31K PUW) & GET FREE SPIN, ZERO WOB. 16:30 - 19:55 3.42 STMILL P WEXIT TIME MILL WINDOW FROM 9552.8FI PUMPING 1.50BPM AT 2600PSI FS & 150- 200PSI MW. PUMPING USED 8.56PPG GEO -VIS. WITH 2.OK WOB & 9.57PPG ECD. PVT = 294 19:55 - 21:52 1.95 STMILL P WEXIT HARD FAST STALL A FEW MIN AFTER ADVANCING TO 9955.6 FT PU CLEAN AND RESET PUMPS FS =2700 PSI @ 1.55 BPM RIH AND STARTED GETTING 50 PSI OF MW AND SLOW REAMED DOWN AT ABOUT 10 FT /HR STARTED TO TIME MILL AHEAD AGIN FROM 9555.4 FT SAW GOOD MW WHEN STRING REAMER WENT OVER AREA OF STALL INDICATION OF WINDOW EXIT @ 9556.6 FT BY DROP IN PRESSURES AND WOB BOTH MILLING OFF FAST. 21:52 - 00:00 2.13 STMILL P WEXIT CONTINUE TO TIME MILL AHEAD AND ALOW THE STRING REAMER TO WORK START ADVANCING A LITTLE FASTER AS PRESSURE AND WOB A ALLOWS FROM 9957.6 FT MILLING RAT HOLE AT 9563.0 5/24/2010 00:00 - 01:30 1.50 STMILL P WEXIT CONTINUE TO MILL RAT HOLE AHEAD FROM 9563 TO 9566.8 FT 01:30 03:50 2.33 STMILL P WEXIT SLOW REAM UP THROUGH WINDOW CLEAN. SLOW REAM DOWN - TOOK A LITTLE MW AND THEN STALLED AT 9552.3 PU WAS CLEAN WITH NO OVER PULL REST PUMPS AND TRY AGAIN SLOWER GOT A LITTLE MW AT 9551.9 FT AND STOPPED TO LET IT MILL OFFFOR ABOUT 10 MIN. ADVANCE ANOUTHER 0.1 /FT AND GOT ABOUT 200 PSI MW - LET IT MILL OFF SMALLER MW ON NEXT ONE REAM DOWN TO BOTTOM CLEAN. REAM UP WAS CLEAN REAM DOWN AND GET MW AGAIN AT 9552 FT - STOP AND LET IT MILL OFF FAST THEN CLEAN TO BOTTOM REAM UP CLEAN DRY DRIFT DOWN CLEAN DRY DRIFT UP CLEAN Printed 6/11/2010 3:32:03PM • North America - ALASKA - BP Page 3 ot`8 Operation Surrimary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 End Date: 5/27/2010 X3- 00TWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) - — (ft) 03:50 - 05:45 1.92 STMILL P WEXIT POOH Q =1.6 BPM ISSOLATE TO PITS 1 & 2 FOR TRIP OOH PVT = 301 @ 9500 FT SURGE FROM SURFACE BACK IN HOLE. PJSM FOR LD OF BHA DURRING POOH FINAL TRIP SHEET WAS SHORT 1 BBL 05:45 - 06:00 0.25 STMILL P r WEXIT TAG UP FLOW CHECK WELL AND UNSTAB INJECTOR LD WINDOW MILLING BHA. PILOT MILL WAS 2.79 " NO -GO, STRING REAMER WAS 2.79" NO-GO. 06:00 - 06:15 0.25 DRILL P PROD1 PJSM REGARDING MU BUILD BHA. 06:15 - 07:10 0.92 DRILL P PROD1 MU BUILD BHA: WITH RESISTIVITY & NEW T -REX 3 " BICENTER -BIT. PU & MU INJECTOR TO BHA. STAB ONTO WELL. POWER UP & TEST TOOLS. 07:10 - 09:00 1.83 DRILL P PROD1 RIH WITH BUILD BHA (BHA #3). CIRCULATE THRU THE BIT AT MIN RATE 0.3BPM AT 1157PSI. 09:00 - 11:35 2.58 DRILL P PROD1., LOG DOWN FOR TIE FROM 9260FT. TIE IN PARENT WELL BORE TO ALL WELL BORES & REMOVE EXISTING DISCREPANCIES. PLUS 20FT CORRECTION. MINUS 1 BBL WHILE RIH 11:35 - 13:25 1.83 DRILL P PROD1 DRILL BUILD F: • u USING USED 8.55PPG GEO VIS PUMPING AT 1.5BPM/2715PSI FS, 100- 200PSI MW, 1 -1.5K WOB, 30R TF, 9.62PPG ECD, PVT = 301. SERIES OF STALLS AT 9566.8FT & IS MOVING UP HOLE (POSSIBLE TRASH ?) & WINDOW IS NOT SMOOTH & TF IS VERY ERRATIC. MOTOR IS LOCKED UP - 1 BPM AT 4000PSI. WORK COIL UP & DOWN HOLE, VARY PUMP RATE. PRESSURE RELIEVED ITSELF. DRILL USING 1.3BPM AT 3660PSI TO 9568.6FT. BOTTOM'S UP REVEALED RUBBER. 13:25 - 15:15 1.83 DRILL N DFAL 9,568.6 PROD1 OPEN EDC & POH PUMPING 2.6BPM AT 3530PSI. 15:15 - 15:35 0.33 DRILL N DFAL PROD1 FLOW CHECK WHILE PJSM REGARDING HANDLING BHA. 15:35 - 15:55 0.33 DRILL N DFAL PROD1 POP OFF WELL. BLOW DOWN & PURGE BHA - MOTOR TURNS W/ AIR. SHORT CHAIN BHA OOH. MINOR GOUGES ON MOTOR. 3/4 "x3/4" PIECE OF WEAR BAND MISSING OFF OF WEAR PAD (OPPOSITE SIDE OF THE WEAR PAD). MOTOR TURNS EASILY BY HAND. BIT HAD RUBBER INSIDE & MINOR CHIPPED TOOTH ON THE WING & NO DAMAGE ON THE SNOUT. 15:55 - 16:25 0.50 DRILL N DFAL PROD1 MU NEW BUILD BHA. 201-IR RERUN MOTOR (2HRS DRILLING FROM 1 -22B & THE REST CIRCULATING HRS) & PREVIOUS HYC BI -BIT. 16:25 - 18:20 1.92 DRILL N DFAL PROD1 RIH WITH BUILD BHA (BHA #4). 18:20 - 18:45 0.42 DRILL N DFAL PROD1 LOG DOWN FOR TIE -IN FROM 9415FT. WITH +20 FT CORRECTION Printed 6/11/2010 3:32:03PM North America - ALASKA:- BP Paw4 oft Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 End Date: 5/27/2010 X3- 00TWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT 1 NPT Depth Phase Description of Operations (hr) (ft) 18:45 - 21:00 2.25 DRILL P PROD1 RIH AND TRY TO GET IT TO DRILL LOTS OF STALLES AND DIFFACULTY CAN'T GET PAST 9565.9 FT PU HOLE AND GET FS RATES IN CASSED HOLE OF: 1490 PSI @ 0.5 BPM 1890 PSI @ 1.0 BPM 2580 PSI @ 1.54 BPM 3070 PSI @ 1.84 BPM RIH TO 9563.0 FT AND GET FS VALUES OF: 1443 PSI @ 0.6 BPM VIB =1 1900 PSI @ 1.01 BPM VIB =0 2580 PSI @ 1.58 BPM VIB =1 RIH TO 9565.7 FT @ 0.5 BPM @ 1430 PSI AND PARK FOR 5 MIN STAGE PUMPS UP TO 0.75 BPM @ 1611 PSI 1.0 BPM © 1963 PSI SLOWLY ADVANCE AT 0.05 FT AT A TIME FROM 9565.70 FT KINDA "TIME MILLING" AHEAD. GETTING ABOUT 80 TO 100 # WOB AT A TIME WITH 50 TO 100 PSI OF MW. (START TAKING A LITTLE MORE WT AND MW AT 19566.3 FT. AFTER GETTING ESTABLISHED TO 9566.4 STARTED DRILLING AHEAD. 21:00 - 00:00 3.00 DRILL P PROD1 DRILL AHEAD TO 9682 WITH ABOUT 1000 TO 1500 #'S WOB AND 300 TO 400 PSI MW 5/25/2010 00:00 - 00:30 0.50 DRILL P PROD1 CONTINU TO DILL AHEAD FROM 9682 FT TO 9700 FT _ 00:30 - 00:40 0.17 DRILL I P PROD1 WIPER TO WINDOW FROM 9700 FT 00:40 - 00:50 0.17 DRILL I P PROD1 DURING WIPER TO WINDOW CALLED AN UNPLANNED FIRE DRILL IN THE BOILER ROOM. CREW REPORT TO BOILER ROOM IMMEDIATELY WITH APPROPRIATE FIRE EXTINGUISHER (COVERS). SIMULATED NOTIFICATIONS WERE MADE, AND CTD DRILLER SIMULATED SECURING THE WELL. CREW PERFORMED BETTER THAN EXPECTED AND SHORT AAR WAS HELD - BUT NO CHANGES NEEDED. 00:50 - 04:15 3.42 DRILL P PROD1 DRILL AHEAD FROM 9700 FT WITH FS =2585 PSI DRILLING AT 9740 FT Qp =1.55 BPM @ 2860 PSI DH WOB= 1200 #'S ROP =75 FT /HR PVT =304 BBLS HAD SEVERAL STALLS AS WE HIT HARD SPOTS OR LEANED ON IT TOO HARD TURN ON CENTRAFUGE AND AIRED UP MUD IN PITS TO 313 BBLS DRILL TO 9850 FT 04:15 - 04:40 0.42 DRILL P PROD1 WIPER TO WINDOW PVT ON BOTTOM IS 313 BBLS Printed 6/11/2010 3:32:03PM • North America - ALASKA 8P yPa9e 5 of 8 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 End Date: 5/27/2010 X3- 00TWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date j From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:40 - 06:55 2.25 DRILL P PROD1 DRILL AHEAD FROM 9850 FT WITH FS =2600 PSI @1.6BPM DRILL AHEAD FAST @ +100 FT /HR DRILLING @ 9860 FT Qp =1.6 BPM @ 3025 PSI WITH ECD = 9.64 PPG DH WOB = 1600 #'S SEVXYX = 1 ROP =112 FPH PVT =313 BBLS 9893 FT STARTED TO GET HARD /RATTY AGAIN 9895 FT BACK INTO CLEAN SAND DRILLING 112 FT /HR DRILL TO & LAND BUILD SECTION AT 10,000FT. 06:55 - 07:10 0.25 DRILL P PROD1 WIPER TO THE WINDOW - CLEAN. 07:10 - 07:30 0.33 DRILL P PROD1 LOG DOWN FOR TIE -IN FROM 9565FT PUMPING 0574316750.4BPM AT 1400PSI. PLUS 1 FOOT CORRECTION. 07:30 - 07:50 0.33 DRILL P PROD1 WIPER TO TD USING 1.78PM AT 2950PSI. 07:50 - 09:20 ( 1.50 DRILL P PROD1 DRILL TURN FRQM 10.OQQFT USING USED 8.6PPG GEO VIS PUMPING AT 1.7BPM AT 2930PSI FS, 100- 200PSI MW, 1 -1.5K WOB, 90R TF, 9.72PPG ECD, PVT = 313. DRILL TO 10,102.7FT PVT = 313. 09:20 - 09:40 0.33 DRILL N SFAL PROD1 WIPER TO THE WINDOW TO REBOOT TOOL. HOT NOT WORKING (WILL NOT ACKNOWLEDGE STOPS) & NEED ANOTHER 50FT TO STAY IN THE POLYGON. PULL THROUGH WINDOW - CLEAN. 09:40 - 10:15 0.58 DRILL N SFAL PROD1 RE -BOOT BHI COMPUTERS. 10:15 - 11:35 i 1.33 DRILL N SFAL PROD1 REPAIR SLB LEVELWIND PAWL BLADE. 11:35 - 13:20 ! 1.75 DRILL P PROD1 REPAIRS COMPLETE. RIH TO RESUME DRILLING. 13:20 - 14:10 0.83 DRILL P PROD1 WIPER TRIP TO WINDOW FROM 10250' 14:10 - 16:30 2.33 DRILL P PROD1 DRILL AHEAD TO 10350' WIPER TRIP TO WINDOW. DISCUSS PLAN FORWARD WITH TOWN TEAM, DD AND GEOLOGIST. 16:30 - 19:15 2.75 DRILL N HMAN PROD1 CONTINUE TO WIPE HOLE FROM 10350' TO WINDOW WHILE RUNNING ANTI - COLLISION SOFTWARE AND COIL LADES. GOT VERBAL GO AHEAD FROM RON PHILLIPS J PER TIM VERSPUTT, & LOWEL CRAIN _ 19:15 - 19:50 0.58 DRILL N HMAN PROD1 WIPER BACK IN HOLE FROM 9840 FT 19:50 - 20:25 0.58 DRILL P PROD1 CONTINUE TO DRILL AHEAD PER DD'S NEW APPROVED PLAN FROM 10,350 FT FS =2750 PSI @ 1.55 BPM DRILLING WITH 2,000- 2,500 #'S WOB AND 300 -500 PSI DRILL TO 10,425.2 FT 20:25 - 23:10 2.75 DRILL P PROD1 BUILD IS LANDED POOH FOR LATERAL BHA PVT 299 BBLS ON BOTTOM LOST 8 BBLS ON TRIP OOH SURGE IN HOLE FROM SURFACE TO 500 FT — TAG UP FLOW CHECK WELL Printed 6/11/2010 3:32:03PM ! 1 North America - ALASKA: BP.. Page 6 of Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 1 End Date: 5/27/2010 X3- 00TWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:10 - 00:00 0.83 DRILL P PROD1 CHANGE OUT BUILD BHA WITH LATERAL BHA WITH NEW RAZZOR, & 1.2 AKO NEW MOTOR. OLD BIT CAME OUT A 1 -3 FROM THE BUILD BHA STAB ON AND TEST TOOLS 5/26/2010 00:00 - 01:40 1.67 DRILL PROD1 RIH WITH LATERAL SECTION BHA SWAPING MUD TO NEW GEO VIS 01:40 - 02:05 0.42 DRILL PROD1 LOG FOR GR TIE IN FROM 9420 FT TO 10425 FT AND MAKE A +20.5 FT CORRECTION RIH TO 9575 FT AND LOG THE RA TAG. WITH NO CORRECTION * * * * ** SEE LESSON LEARNED IN WTT ON TIE IN OF WS * * * * * * ** 02:05 - 02:30 0.42 DRILL PROD1 RIH, TO BOTTOM 02:30 - 04:10 1.67 DRILL PROD1 DRILL AHEAD FROM 10,425 FT WITH FS =2500 PSI @ 1.5 BPM DRILL AHEAD CLEAN AND FAST. DRILLING @ 10,495 FT Qp =1.53 BPM @ 2775 PSI WITH ECD= 9.64PPG DH WOB = 1,700 #'S AND ROP =114 FT /HR DRILL TO 10,600 FT 04:10 - 05:20 1.17 ` DRILL PROD1 WIPER TO WINDOW PVT =345 BBLS 05:20 - 06:05 0.75 DRILL PROD1 DRILL AHEAD FROM 10,600 FT FS =2430 PSI @ 1.5 BPM DRILLING @ 10,633 FT Qp =1.57 BPM @ 3030 PSI & ECD =9.6 PPG DH WOB = 3340 #'S ROP =91 FT /HR PVT =345 BBLS THEN TURNED ON THE CENTRIFUGE DRILLED TO 10,680 FT 06:30 - 08:00 1.50 DRILL PROD1 WIPER TRIP TO WINDOW FROM 10750' 08:00 - 10:20 2.33 DRILL PROD1 DRILL AHEAD FROM 10750' 1.52/1.52 @ 2703 PSI. 8.55/8.61 ECD = 9.63 PPG PVT = 347 BBLS 10:20 - 11:00 I 0.67 DRILL PROD1 WIPER TRIP TO WINDOW FROM 10900' 11:00 - 11:15 0.25 DRILL PROD1 TIE -IN FROM 9575'. CORRECT +2'. 11:15 12:00 0.75 DRILL PROD1 RIH TO BOTTOM 12:00 - 14:30 2.50 DRILL PROD1 DRILL AHEAD FROM 10900' 1.54/1.55 @ 2662 PSI 8.56/8.61 ECD = 9.65 PPG PVT = 342 BBLS 14:30 - 16:20 1.83 1 DRILL PROD1 WIPER TRIP TO WINDOW FROM 11053' 16:20 - 18:00 1.67 DRILL PROD1 DRILL FROM 11,053 FT TO 11,200 FT 18:00 - 19:40 1.67 DRILL PROD1 WIPER TO WINDOW FROM 11,200 FT 19:40 - 20:00 0.33 DRILL PROD1 DRILL AHEAD FROM 11,200 FT FS =2550 PSI @ 1.6 BPM DRILLED TO 11,222 FT 20:00 - 20:10 0.17 DRILL PROD1 PU AND RECORD SLOW PUMP RATES AT 11,222 FT Qp =0.5 BPM @ 1325 PSI Qp =1.0 BPM @ 1780 PSI Printed 6/11/2010 3:32:03PM 1 • North America - ALASKA - BP Page 7 of 8 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 End Date: 5/27/2010 X3- OOTWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT j NPT Depth Phase Description of Operations (hr) (ft) 20:10 - 22:05 1.92 DRILL PROD1 DRILL AHEAD FRON 11,222 FT DRILL WITH 250 PSI OF MW AND 2,00 TO 1,500 #'S WOB DRILLED TO 11,357 FT _ 22:05 - 00:00 1.92 DRILL PROD1 WIPER TO WINDOW 5/27/2010 00:00 - 00:20 0.33 DRILL P PROD1 CONTINUE TO WIPER TO BOTTOM 00:20 - 02:50 2.50 DRILL P PROD1 DRILL AHEAD FROM 11,357 FT FS =2630 PSI @ 1.6 BPM STACKING AND VIBRATIONS ARE BAD @ 11,394 FT DD IS HAVING PROBLEMS GETTING SURVEYS ON BOTTOM AND CTD IS HAVING PROBLEMS STACKING. DRILLING AHEAD AT 11,395 FT Qp =3120 PSI @ 1.65 BPM WITH ECD =9.87 PPG DH WOB=2430 #'S ROP =65 FT /HR SEVXYX =1 DRILLED TO 11 500 02:50 - 05:40 ! 2.83 DRILL P PROD1 WIPER TO WINDOW. BEGIN SWAP TO NEW GEOVIS MUD SYSTEM WHILE ON WIPER TRIP. 05:40 - 05:55 0.25 DRILL P PROD1 FS =2589 PSI @ 1.56 BPM DRILL AHEAD FROM 11,500 FT DRILLING AT 11,512 FT Qp =2870 PSI @ 1.56 BPM ECD =9.86 DH WOB =2390 #'S ROP =63 FT /HR DRILLED TO 11,515 FT 05:55 - 08:00 2.08 DRILL P PROD1 DRILLED TO 11650' 08:00 - 10:00 2.00 DRILL P PROD1 WIPER TRIP TO WINDOW. 10:00 - 11:30 1.50 DRILL P PROD1 DRILL AHEAD FROM 11650' TO 11800' 1.63/1.65 @ 2743 PSI 8.53/8.54 ECD = 9.68 PPG PVT = 339 BBLS a- j 11:30 - 13:45 2.25 DRILL P PROD1 WIPER TRIP FROM 11800' TO WINDOW. FS= 2900 -PSI @ 1.8 -BPM, 1.7 -BPM OUT. 9.82 -ECD PU 31K -LBS, PVT = 341 -BBLS TIE IN LOG @ 9575' +5' CORRECTION. 5 -BBL LOSS DURING TRIP 13:45 - 14:45 1.00 DRILL P PROD1 i _ H A. - •M :1 e • 1• 1' FS= 2550 -PSI a@ 1.6 -BPM, 1.6BPM OUT. /c PVT = 336 -BBL, 8.53 -PPG IN / 8.86 -PPG OUT. ECD= 9.82 1415 -HRS - - -SPR = .75 -BPM WITH 1535 -PSI @ 11,860' 1.5 -BPM WITH 1550 -PSI SPR @ TD .8 -BPM 1575 -PSI 1.6 -BPM 2580 -PSI TD WELL AT 1445 -HRS @ 11930' 14:45 - 16:40 1.92 DRILL P PROD1 WIPER TRIP TO WINDOW TO TIE IN WELL 1.77 -BPM @ 2850 -PSI, 1.68 -BPM. 8.53 -PPG IN, 8.62 -PPG OUT, 9.8 -PPG ECD Printed 6/11/2010 3:32:03PM North America - ALASKA -BP Pa 8 of Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: RE- ENTER- ONSHORE (RON) Start Date: 5/21/2010 End Date: 5/27/2010 X3- 00TWB -C (895,684.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:40 - 17:55 1.25 DRILL P PROD1 TIE IN AT WHIPSTOCK RA WITH =2 FT CORRECTION WIPER TO BOTTOM TAG BOTTOM @ 11,929 FT 17:55 - 21:00 3.08 DRILL P PROD1 PnfH 1 AYIN( IN CI FAN (FO VIS F()R 1 INFR STRAIGHT MUD NO EXTRA VIS. PVT=331 BBLS 21:00 - 21:45 0.75 DRILL P PROD1 TAG UP FLOW CHECK WELL UNSTAB INJECTOR AND LD BHA BIT WAS 1 -1 REMOVE BHI CHECKS 21:45 - 00:00 2.25 DRILL N PROD1 NPT DURRING CHANGE OF SCOPE (PER PINK BOOK) NO SELRTB AVAILABLE AS NORDIC 2 HAS IT IN OPPERATION AND ONLY ONE AVAILABLE. BD AND SWAP REELS FOR BASIC CEMENT JOB INSTEAD USING LBRT STAB ON WELL WITH MASTER VALVE CLOSED. LOAD COIL WITH 35 BBLS OF FRESH WATER HAD PJSM FOR N2 BD WHILE PUMPING WATER PUMP 5 BBLS McOH 10 GAL PICKLE JUICE BD WITH N2 Printed 6/11/2010 3:32:03PM • • North America - ALASKA BP Page t:410 Operation Sunlit-ivy ar Rep Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/28/2010 00:00 - 04:30 4.50 CASING N MISC RUNPRD NO SELRTB AVAILABLE AS NORDIC 2 HAS IT IN OPPERATION AND ONLY ONE AVAILABLE. BD AND SWAP REELS FOR BASIC CEMENT JOB INSTEAD USING LBRT 04:30 - 07:30 3.00 CASING N RREP RUNPRD REEL IS LOADED BUT SLB NEEDS TO REBEND / WORK INTERNAL CT CONNECTION. i I WAIT ON SLB WELDER TO START CUTTING THE REEL 0635 -hrs - -BEGIN CUTTING ON REEL AND ADJUSTING COIL TO MAKE UP INNER REEL IRON. 0730 - hrsFINISH CUTTING RAMP ON INNER REEL 07:30 - 11:45 4.25 CASING N MISC RUNPRD BEGIN MAKING UP INNER REEL IRON. PULL COIL ACROSS FLOOR WITH TUGGER WINCH. COIL DAMAGED DURING ATTEMPT. RE- INSTALL GRAPPLE IN COIL AND SUCCESSFULLY PULL COIL ACROSS AND INSTALL INTO INJECTOR. _ 11:45 - 15:00 3.25 CASING N MISC RUNPRD MU AND PULL TEST CONNECTOR. PUMP 1.375" BALL FOR DRIFT OF COIL. RECOVER BALL AND PREP FOR PUMPING DART TO VERIFY COIL VOLUME. REPAIR TOTCO SYSTEM 15:00 - 16:00 1.00 CASING N MISC RUNPRD MU BAKER COIL CONNECTOR AND PULL TEST TO 25K. PRESSURE TEST INNER REEL IRON TO 4000 -PSI. 16:00 - 17:00 1.00 CASING N MISC RUNPRD DROP WIPER DART IN COIL AND PUMP 43 -BBL. DART RECOVERED 17:00 - 19:00 2.00 CASING N MISC RUNPRD PJSM ON PRESSURE TEST COIL PRESSURE TEST TO 1000 -PSI LOW AND 6250 -PSI HIGH. GOOD TEST. 19:00 - 20:45 1.75 CASING N MISC RUNPRD PRESSURE TEST INER REEL VALVE TO 300 -PSI LOW AND 3500 -PSI HIGH. LOW PRESSURE TEST - OK. HIGH PRESSURE TEST - TROUBLES WITH COMPRESSOR AIR DUE TO REEL FULL OF GEOVIS. OBTAIN GOOD HIGH PRESSURE TEST. �� 20:45 - 21:30 0.75 CASING P RUNPRD PFRFC)RM WFEKLY BOP FUNCTION TEST. 21:30 - 22:00 0.50 CASING P RUNPRD PJSM's AND RU TO RUN LINER 22:00 - 23A5 1.75 CASING P RUNPRD MU 2 -3/8" LINER ASSEMBLY WITH JEWELRY AND 76 JNTS OF 2 -3/8" LINER AFTER MU OF FIRST 5 JOINTS DRIFTED JOINTS WITH 1.81" DRIFT ON JOINT # 46 AT MIDNIGHT 23:45 - 00:00 0.25 CASING P RUNPRD ON JOINT # 46 HAD A UNANNOUNCED FLOOR SAFETY VALVE DRILL WITH GOOD RESPONSE FROM NEW CREW MEMBERS. APPROPRIATE CROSS OVERS AND FSV WAS AVAILABLE AND EFFICIENTLY DONE. HELD A SMALL AAR TO DISCUSS AND CONGRATULATE NEW RIG HANDS ON JOB WELL DONE. Printed 6/11/2010 3:32:35PM • • North America -. ALASKA - BP - Page 2 of 10 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay j Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 5/29/2010 00:00 - 02:10 2.17 CASING P RUNPRD CONTINUE TO MU LINER RUNING BHA WITH JOINT # 47 STAB ON INJECTOR AND CIRCULATE AIR OUT OF LINER 02:10 - 03:15 1.08 CASING P RUNPRD RIH WITH LINER CIRC MIN RATE .38 BPM @ 1030 FT @ 6350 FT 03:15 - 03:50 0.58 CASING P RUNPRD WT CHECK AT 9467 FT B/O = 32K UP = 29K RIH = 17,7 K CONTINUE IN HOLE 60 @ FPM 1150 PSI @ .28 BPM @ 9775 FT 1 03:50 - 04:40 0.83 CASING P RUNPRD STACKED OUT AT 11,455 FT, BLEED OFF PRESSURE AND EASE BY SLOWLY BRINGING PUMPS. UP AS WE RIH. 11,477 FT WORK BY 11,516 FT STACKING TRY TO CIRCULATE OUT DEBRIS @ .77 BPM @ 1660 PSI PU AND STACK SEVERAL TIMES MAKING ■ SMALL GAINS 04:40 - 05:40 1.00 CASING N DPRB RUNPRD PU HEAVY FROM 11,220 FT TO 11,295 FT WHILE CIRCULATING RIH TO 11,314 AND STACK OUT PU AND WORK BY CONT RIH TO 11,450 FT WORK TO 11,502 FT 05:40 - 10:45 5.08 CASING N DPRB RUNPRD CONTINUE TO WORK LINER TO 11504' WHILE CIRCULATING AT MINIMUM RATE SLOW FORWARD PROGRESS. CONSULT WITH TOWN TEAM ON PLAN FORWARD. 10:45 - 16:10 5.42 CASING N DPRB RUNPRD PRESSURE UP WELLBORE TO 500 PSI AND ATTEMTP TO RUN PAST 11515' PRESSURE UP WELLBORE TO 1000 PSI AND ATTEMPT TO RIH. BEGIN ADDING MI 776 LUBE TO MUD SYSTEM. 16:10 - 18:05 1.92 CASING N DPRB RUNPRD POOH FOR CLEAN OUT RUN. 18:05 - 19:00 0.92 CASING N DPRB RUNPRD CREW CHANGE, WALK AROUNDS, AND PJSM'S 19:00 - 20:00 1.00 CASING N DPRB RUNPRD CIRCULATING WATER INTO LINER TO FACILITATE A SAFE TRIP WITH LINER. PJSM FOR PULLING LINER 20:00 - 22:30 2.50 CASING N DPRB I RUNPRD STAND BACK INJECTOR, LD LINER RUNNING TOOLS STAND BACK 2 -3/8" LINER IN DOUBLES 22:30 - 00:00 1.50 CASING N DPRB RUNPRD PJSM AND LOAD COIL WITH WATER THEN, McOH, AND INHIBITOR. 5/30/2010 00:00 - 01:30 1.50 CASING N DPRB RUNPRD CONTINUE TO BLOW DOWN REEL 01:30 - 02:30 1.00 CASING N DPRB RUNPRD UNSTAB FROM BLOW DOWN INSTALL GRAPPLE AND PULL TEST PULL COIL ACROSS AND SECURE TO REEL SHIPPING BAR 02:30 - 03:15 0.75 CASING N DPRB RUNPRD REMOVE HARDLINE FROM REEL FOR NEXT REEL PREP TO LOWER REEL Printed 6/11/2010 3:32:35PM • North - America - ALASKA . $P Page 3 of 10 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:15 - 04:30 1.25 CASING N DPRB RUNPRD LOWER OUT E FREE COIL AND LOAD ECOIL FROM DRILLING PHASE. 04:30 - 05:30 1.00 CASING N DPRB RUNPRD MU HARD LINE AND JUNCTION BOX INSIDE REEL 05:30 - 06:15 0.75 CASING N DPRB RUNPRD MU GRAPPLE, PULL COIL ACROSS, AND STAB INTO INJECTOR 06:15 - 06:30 0.25 CASING N DPRB RUNPRD BOOT UP ELINE STAB ON AND FILL COIL QUICK PT TO CHECK FOR LEAKS IN HARD LINE. PUMP FOR SLACK MANAGMENT 06:30 - 07:00 0.50 CASING N DPRB RUNPRD TEST HARDLINE TO 4500 -PSI 07:00 - 09:00 2.00 CASING N DPRB RUNPRD PJSM AND PUMP SLACK MGMT WITH WATER PJSM ON AND CUT AND RE -HEAD AND MEG E -LINE 49 OHMS MAKE UP AND PULL TEST COIL CONNECTOR 09:00 - 10:00 1.00 CASING N DPRB RUNPRD FLUID PACK AND TEST INNER REEL VALVE. TEST TO 250 -PSI LOW AND 3700 -PSI HIGH MU BAKER UQC AND PRESSURE TEST TO 3700 10:00 - 11:00 1.00 CASING N DPRB RUNPRD MU CLEANOUT BHA CIRC OUT FW 11:00 - 12:00 1.00 CASING N DPRB RUNPRD RIH WITH COIL TO 9550' TIE IN +22.5' 1.68 -BPM WITH 2430 -PSI, 8.56 -PPG IN 1200 -I-IRS -- CONTINUE IN HOLE. 12:00 - 13:50 1.83 CASING N DPRB RUNPRD RIH TO TROUBLE SPOT. 13:50 18:30 4.67 CASING N DPRB RUNPRD BFGIN -TQ REAMJROUBLE SPOT AT 11500' 1.60/1.59 PVT = 288 BBLS OVERPULL NOTED AND BIT NOZZLES APPEAR TO BE PLUGGING. CONTINUE TO WORK THROUGH SHALES. DROP PUMP RATE AND HOLD AS- DRILLED TOOL FACE(270 DEG LEFT) UNABLE TO WORK THROUGH — 11540'. PUMP LINER RUNNING PILL TO HELP WITH STICK/SLIP ISSUES. CLEANOUT TO TD OF 11925'. PUH AND CONTINUE TO REAM SHALES THROUGH 11490' TO 11540'. HOLE CLEANING UP. HIGH SIDE TOOL FACE WHILE RIH PAST TROUBLE SPOTS HELPS. _ 18:30 - 19:00 0.50 CASING N DPRB RUNPRD CREW CHANGE 19:00 - 21:30 2.50 CASING N DPRB RUNPRD CONTINUE TO REAM OUT OF HOLE WITH MULTIPLE TOOL FACES. RIH WITH PUMPS OFF, AND HOT TURNED TO HIGH SIDE TF THEN POWERED OFF. CONSISTENTLY STACK OUT AT 11,532 FT - LEAVE THE WEIGHT SIT ON IT, AND IT POPS THROUGH EVERY TIME. Printed 6/11/2010 3:32:35PM 1 North America - ALASKA - BP Page 4 Of " Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50:25 7/29/1996 00:00 @72.1ft (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 CASING N DPRB RUNPRD CONTINUE TO WIPER TO BOTTOM, THEN WIPER BACK TO WINDOW TO ENSURE THE REAMED DEBRIS IS OUT OF THE HOLE. DISCUSS PLAN FORWARD WITH TOWN AND MAKE PLANS TO WEIGHT UP AND GET APPROPRIATE RUNNING TOOLS FOR CONDITIONS. 5/31/2010 00:00 - 01:00 1.00 CASING N DPRB RUNPRD CONTINUE TO WIPER IN HOLE WHILE WAITING FOR WEIGHTED MUD SYSTEM. RAN THROUGH PROBLEM AREA BETTER THIS TIME THROUGH. HAD PUMPS ON STACKED 10K AND POPED THROUGH. WE DIDN'T NEED TO STOP THIS TIME. 01:00 - 04:00 3.00 CASING N DPRB RUNPRD CONTINUE TO SLOWLY WIPER WAITING FOR MUD. WE HAVE TAGED AT 10,921 FT BUT MADE IT THROUGH OK. MADE IT THROUGH THE PROBLEM AREA CLEAN. 04:00 - 04:30 0.50 CASING N DPRB RUNPRD I START 9.1 PPG MUD DOWN HOLE 04:30 - 05:30 1.00 CASING N DPRB RUNPRD WIPER SLOW CIRCULATING IN 9.1 PPG MUD CAME UP TO 10,870 FT AND THEN RIH THROUGH PROBLEM AREAS PRACTICLY CLEAN. 05:30 - 06:30 1.00 CASING N DPRB RUNPRD POOH 06:30 - 07:40 1.17 CASING N f RUNPRD RUN BACK IN HOLE TO LAY IN LINER PIL,JWITH ALPINE GLASS BEADS. TRIP TO TD AT 11929' WAS CLEAN. 07:40 - 08:10 0.50 CASING N RUNPRD LAY IN 35 BBL LINER PILL TO WINDOW 08:10 - 11:00 2.83 CASING N RUNPRD POOH FOR LINER. PAINT EOP FLAGS AT 9100' AND 6800'(BOTH WHITE) 11:00 - 11:30 0.50 CASING N RUNPRD OOH. CHECK FOR FLOW AND HOLD PJSM 11:30 - 12:45 1.25 CASING N RUNPRD LD LATERALJCLEANOUT BHA. 12:45 - 14:00 1.25 CASING N RUNPRD PUMP ELINE SLACK FORWARD FOR LINER RUNNING JOB RECOVER 275' ELINE. MAKE UP TO WELL FOR SECOND ATTEMPT TO PUMP FORWARD. - - - -- - - - -- -- - - -- - - -- 14:00 - 14:15 0.25 CASING N RUNPRD PJSM WITH ONCOMING NORDIC CREW 14:15 - 17:00 2.75 CASING N RUNPRD CONTINUE PUMPING ELINE SLACK FORWARD. CUT 280' OF ELINE ON FIRST ROUND OF PUMPING. STILL 185' OF ELINE SLACK IN REEL AFTER 2 ATTEMPTS AT PUMPIN ELINE SLACK FORWARD. ORDER MORE CSH FOR LINER JOB AND PUMP 3/4" DRIFT BALL THROUGH REEL. RECOVER BALL. 17:00 - 17:15 0.25 CASING N RUNPRD PJSM FOR MAKING UP LINER 17:15 - 18:00 0.75 CASING N RUNPRD MAKE UP COIL CONNECTOR 18:00 - 20:05 2.08 CASING N RUNPRD MU LINER RUNNING BHA, 20:05 - 20:40 0.58 CASING N RUNPRD NORDIC CREW CHANGE, WALK AROUNDS, AND PJSM 20:40 - 21:15 0.58 CASING N RUNPRD STAB ON INJECTOR, AND CIRCULATE IN MUD Printed 6/11/2010 3:32:35PM • North America - ALASKA - BP ` Page 5 of 1p, Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) i Start Date: 5/27/2010 End Date: 6/4/2010 X3- OOTWB -C (1,116,966.00 ) _ I Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:15 - 23:25 2.17 CASING N RUNPRD _pH WITH I INFR TAGGED BOTTOM @,_11 975 3 I INrnRRFrTFn, UP WT =33K @ 11,917 FT 23:25 - 00:00 0.58 CASING P RUNPRD 11,928.9 FT WITH 10 K SET DOWN @ CT • WT =4568 #'S LAUNCH 5/8" STEEL BALL WITH 1,000 PSI HEARD BALL ROLLING CONTINUED TO PUMP AT 1.33 BPM @ 2160 PSI HEARD BALL GO OVER AT 15.5 BBLS SLOWED PUMPS AT 28 BBLS TO .54 BPM @ 1414 PSI 30.5 BBLS BALL IS ON SEAT SHEARED OUT BALL SEAT @ AT 2850 PSI WT CHEEK HAD BO WT AT 29 K - LINER LOOKS RELEASED 6/1/2010 00:00 - 02:50 2.83 CEMT P RUNPRD WITH BALL SEAT SHEARED AND FREE OF LINER CIRCULATE WELL OVER TO 2% KCL DOUBLE SLICK ADJUSTING RATE TO STAY UNDER 2200 PSI 01:30 CEMENTERS ON LOCATION AND RU. DISCUSS CEMENT JOB STEEPS WITH BTT, SLB, AND WSL WITH WELL SWAPPED TO KCL Qp =1.5 BPM @ 1500 PSI 02:50 - 03:25 0.58 CEMT P RUNPRD CONTINUE TO CIRCULATE WHILE OFF LOADING GEO VIS AND LOADING KCL, MIXING CONTAM PILL AND BIOZAN FOR CEMENT JOB. 03:25 - 03:40 0.25 CEMT P RUNPRD PJSM FOR CEMENT JOB WITH EVERYONE 03:40 - 04:00 0.33 CEMT P RUNPRD CH UP 16 BBLS FOR 12 BBLS PUMPABLE OF L5 $ PPC; CLASS G CEMENT WITH GASBLOCK. WITH 4:08 PUMP TIME. CEMENT AT WT AT 03:45 04:00 - 04:15 0.25 CEMT P RUNPRD PRESSURE TEST CEMENT LINES Printed 6/11/2010 3:32:35PM • North America - ALASKA BP Page 6 of-10 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:15 - 05:15 1.00 CEMT P RUNPRD REEL VOLUME = 41.2 BBLS + .72 BBLS FOR CSH = 41.9 BBLS i pi IMP 19 RRI S C)F 15 8 PPC; CI ASS (; GFMF,„ INTO REEL ZERO IN & OUT MM AT 12 PPG RETURNS ARE ONE FOR ONE ON KCL WHILE LOADING CEMENT IN REEL SWITCH TO RIG PUMPS AT 12 BBLS IN AND PUMP bio TO THE CEMENT TRUCK DISPLACE CEMENT FROM REEL WITH 2# BIO AT Li 1.5 BPM SLOW IN RATE TO 0.76 BPM & 290 PSI @ 30 BBLS TILL CEMENT STARTS PAST WIPER PLUG @ 42.5 INCREASE RATE TO 1.5 BPM WHILE DISPLACING CEMENT INTO LINER 1.47 BPM = 580 PSI @ 50 BLS 1.5 BPM = 2120 PSI STOP AT 51.9 BBLS (10 BBLS CEMENT OUT OF COIL & 2 BBLS ABOVE TOOL) FINAL CP =2250 PSI AND PU ON COIL BO @ 11,922 PU TO 11,910 FT AND CIRCULATE 5 BBLS OUT 1.5 BPM =1600 PSI SHUT DOWN @ 56.9 BBLS AND OPEN BAKER CHOKE SET DOWN TO 11,930.75 @ 3630 #'S CT WT SHEAR WIPER PLUG @ 2,000 PSI WITH (TOOK 0.2 BBLS TO LAUNCH) DISPLACE CEMENT @ 1.53 BPM = 2370 PSI STARTING / 3400 PSI SHUT DOWN AT 66.7 BBLS WITH A BUMP TO 4100 PSI EXPECTED BUMP WAS 67.3 BBLS 10 BBLS OF CEMENT IN PLACE AT 05:15 WITH ESTAMATED TOP OF CFMFNT AT TOP OF LINER AT • 44. • 05:15 - 05:30 0.25 CEMT P RUNPRD OPEN BAKER CHOKE AND BLEED TO 0 PSI TO CHECK FLOATS NO FLOW PRESSURE STAYING 0 PSI CLOSE CHOKE PRESSURE UP TO 690 PSI PU TO 11,916 FT AND SAW PRESSURE DROP OFF 05:30 - 07:00 1.50 CEMT P 1 RUNPRD POOH DISPLACING VOIDAGE + 0.7 BPM 1 07:00 - 07:30 0.50 CEMT P RUNPRD I.D LINER RUNNING TOOLAND HOLD PJSM FOR PU OF LINER CLEANOUT. 07:30 - 12:00 4.50 CEMT P RUNPRD BEGIN RUNNING MOTOR, 1.77" MILL AND CSH FOR LINER CLEANOUT 12:00 - 13:30 1.50 CEMT P RUNPRD RIH WITH LINER CLEAN OUT BHA. RECIP FROM 8400' WHILE WAITING FOR CEMENT. 13:30 - 16:00 2.50 CEMT P RUNPRD WOC Printed 6/11/2010 3:32:35PM North America ALASKA - BP Page 7 of 10 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 17:45 1.75 CEMT P RUNPRD CEMENT AT 500 PSI COMPRESSIVE STRENGTH. RIH TO PBTD. NO PROBLEMS OR MOTOR WORK NOTED AT LINER TOP. WT CK EVERY 1000 FEET INSIDE LINER. TA P T ' E R .11• 17:45 - 21:00 3.25 CEMT P RUNPRD POOH FOR MCNL LOGGING BHA. 21:00 - 21:15 0.25 CEMT P RUNPRD PJSM FOR CHANGE OUT BHA AND STAND BACK CSH. 21:15 - 00:00 2.75 CEMT P RUNPRD TAG STRIPPER. SET INJECTOR ON LEGS. L/D 2.06" CSH AND OPEN CIRC SUB WITH 1/2" BALL. STAND BACK 42 STDS 1" CSH. L/D MOTOR, RECOVER 1/2" BALL. 6/2/2010 00:00 - 01:40 1 1.67 BOPSUR P OTHCMP M/U CT RISER, JET STACK AND SURFACE LINES. 01:40 - 02:30 0.83 EVAL P OTHCMP POP OFF WELL, REMOVE SWIZZLE STICK. PREP RIG FLOOR FOR RUNNING MCNL TOOLS. PJSM THEN BRING MCNL TOOLS UP TO RIG FLOOR. 02:30 - 04:50 2.33 EVAL P OTHCMP M/U MCNL BHA WITH 1/2" CIRC SUB 5/8 DISCONNECT, 42 STDS 1" CSH, 3/4" DISCONNECT, DBPV, 4 JTS 2.06" CSH. BHA OAL = 2755.72 FT. 04:50 - 06:15 1.42 EVAL P OTHCMP M/U CT RISER. RIH. 06:15 - 09:00 2.75 EVAL P OTHCMP LOG DOWN TO PBTD AT 30 FPM. LOG UP AT 60 _ FPM. PAUSE FOR STOP COUNT. 09:00 - 10:30 1.50 EVAL P OTHCMP POOH 10:30 12:45 2.25 EVAL P OTHCMP OOH, BEGIN LAYING DOWN LOGGING BHA 12A5 - 13:00 0.25 EVAL P OTHCMP PJSM WITH SWS MEMORY LOGGER AND RIG CREW REGARDING LAYING DOWN LOGGING SOURCE. DISCUSS TIME /DISTANCE /SHIELDING AND GOOD COMMUNICATION. 13:00 - 15:30 2.50 EVAL P OTHCMP CLEAR FLOOR AND BEGIN PRESSURE TEST OF LINER LAP. TEST LINER LAP TO 2000 PSI. THIRD ATTEMTP LOST 162 PSI IN 30 MINUTES(PASS) STARTING PRESSURE = 2000PSI. FINAL PRESSURE = 1838PSI 15:30 - 18:30 3.00 PERFOB P OTHCMP PJSM TO BEGIN PICKING UP PERFORATING GUNS. DISCUSS PERF INTERVAL WITH ASSET GEOLOGIST. DECIDE TO PERFORATE OFF SLB MCNL LOG DATED 6 -2 -10 DUE TO UNCERTAINTY AROUND ORIGINAL LOG OF WELL. 18:30 - 18:45 0.25 PERFOB P OTHCMP I PJSM WITH NIGHT SHIFT FOR INSTALLING FIRING HEAD AND PICKING UP 28 STDS CSH. - - - -- -- -- --- - -- -- 18:45 - 21:00 2.25 PERFOB P OTHCMP P/U REMAINING PERF BHA. I P/U 4 JTS OF 2.06 CSH, M/U SWIVEL. Printed 6/11/2010 3:32:35PM �. • North America - ALASKA BP Page 8'of 10 Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) _ (ft) 21:00 - 23:10 2.17 PERFOB P OTHCMP M/U CT RISER AND RIH. CCAT FREEZES UP JUST BEFORE TAGGING, RESTART SYSTEM. TAG LIGHTLY AT 11898 FT. PICK UP TO GET WT BACK AND CORRECT DEPTH TO 11897.4 FT, PBTD FOUND FROM MCNL EARLIER TODAY. 23:10 - 23:30 1133 PERFOB P OTHCMP pULL UP TO JUST BELOW PERF DEPTH. START PUMP SEQUENCE TO ACTIVATE FIRING HEAD. USE 0.3 AND 1.1 BPM FOR THE TWO RATES. DROP RATE TO 0.3 BPM THE FINAL TIME AND START MOVING CT SLOWLY UPHOLE. 23:30 - 00:00 0.50 PERFOB P OTHCMP GET GOOD SHOT INDICATION FROM ACOUSTIC AND FROM FLUID LOSSES. INCREASE RATE TO 1 BPM AND USE CHOKE TO HOLD 300 -400 PSI WHP WHILE GUNS ARE IN LINER. LIMIT PULLING SPEED TO 60 FT /MIN. PERFORATED INTERVALS: 10979 - 11359 FT 11535 -11870 FT TOTAL OF 715 FT PE ORATIONS. 6/3/2010 00:00 - 00:30 0.50 PERFOB P OTHCMP CONTINUE POOH, HOLD 300 -400 PSI WHP WITH CHOKE. 00:30 - 01:00 0.50 PERFOB P OTHCMP STOP AT 9400 FT AND SLOWLY OPEN CHOKE. FLOW CHECK WELL FOR 30 MIN. 01:00 - 02:10 1.17 PERFOB P OTHCMP FILL WELL (0.3 BBLS) THEN CONTINUE POOH. 02:10 - 02:45 0.58 PERFOB P OTHCMP TAG STRIPPER AND SHUT DOWN PUMP. FLOW CHECK WELL FOR 30 MIN. PJSM FOR UD HYDRIL. FILL WELL (0.2 BBL). 02:45 - 05:30 2.75 PERFOB P OTHCMP POP OFF WELL. L/D 2.06 CSH AND 1" CSH. 05:30 - 05:45 0.25 PERFOB P OTHCMP PJSM FOR UD PERF GUNS. 05:45 - 08:30 2.75 PERFOB P OTHCMP L/D PERF GUNS. 08:30 - 12:30 4.00 PERFOB P OTHCMP PERF GUNS LD. BEGIN TO RUN CSH IN WELL TO LAY DOWN SIDEWAYS 12:30 - 13:00 0.50 PERFOB P OTHCMP ALL CSH LAYED DOWN. CLEAR FLOOR. 13:00 - 13:15 0.25 PERFOB P OTHCMP PJSM TO PU KB LINER TOP PACKER AND RUNNING TOOL 13:15 - 14:30 1.25 ZONISO P OTHCMP PU KB LIIJER TOP PACKER AND RUNNING TOOL 14:30 - 16:30 2.00 ZONISO P OTHCMP RIH WITH KB LINER TOP PACKER 16:30 - 18:20 1.83 ZONISO P OTHCMP WT CK 29K AT 9350'. RIH TO DEPLOYMENT SLEEVE PUMPING AT .32 BPM SEE PRESSURE INCREASE AT 9427.5' WITH 1K DOWN WEIGHT. PUH AND SEE ALL COIL WEIGHT BACK AT 9427'. DROP 5/8" STEEL BALL. CAN'T HEAR BALL IN REEL, HIGH WINDS MAKING TOO MUCH NOISE IN REEL HOUSE. Printed 6/11/2010 3:32:35PM • • North America - ALASKA BP Page 9 of 10 Operat Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- OOTWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:20 - 19:30 1.17 ZONISO P OTHCMP PUMP 1 REEL VOLUME, BALL NOT ON SEAT. ROLL REEL BACK SLIGHTLY AND PUMP ANOTHER REEL VOLUME, NOTHING SEEN. 19:30 - 21:10 1.67 ZONISO P OTHCMP USE A PIECE OF HYDRAULIC HOSE TO FORCE BALL PAST REEL HARDLINE. PUMP 4 BBLS GEO -VIS AHEAD AND BEHIND BALL AND RE- LAUNCH WITH 2000 PSI. BALL IS HEARD ROLLING, AND LEAVING REEL HOUSE. SLOW DOWN PUMP TO 0.5 BPM AFTER 25 BBLS AWAY. AFTER 29 BBLS AWAY SLOW TO 0.3 BPM. BALL ON SEAT AFTER 32.5 BBLS. SHUT DOWN PUMP, OPEN BAKER CHOKE. RIH AND SET DOWN 5K, SAME DEPTH AS BEFORE BALL LAUNCH. PICK UP TO GET WT BACK + 1.5 FT. PRESSURE UP CT TO 1500 PSI, SET 10K BACK DOWN. BLEED OFF CT PRESSURE. PRESSURE UP CT X TUBING ANNULUS TO 2000 PSI, HOLD FOR 15 MIN AND CHART. LOSS OF 29 PSI OVER 15 MIN, GOOD TEST. BLEED OFF ANNULUS PRESSURE. 21:10 - 23:00 1.83 ZONISO P OTHCMP PRESSURE UP CT TO RELEASE FROM PACKER. SHEARS AT 2800 PSI. ALLOW PRESSURE TO BLEED OFF. PICK UP OFF PACKER TO 32K, BREAKS BACK TO 29K. POOH, PUMP 1.2 BPM. 23:00 - 23:15 0.25 ZONISO P OTHCMP TAG STRIPPER. PJSM FOR L/D LTP RUNNING TOOLS. 23:15 - 00:00 0.75 ZONISO P OTHCMP L/D 4 JTS 2.06 PH6 AND LTP RUNNING TOOLS. RECOVER 5/8" STEEL BALL, TOOLS HAVE FUNCTIONED NORMALLY. LOAD OUT BTT EQUIPMENT. 6/4/2010 00:00 - 00:45 0.75 BOPSUR P PRE M/U FREEZE PROTECT BHA, NOZZLE WITH DBPV AND RIH. 00:45 - 01:15 0.50 BOPSUR P PRE POOH, LAY IN MEOH 60:40. STOP AT 200 FT AND PUMP MEOH TO SURFACE, SHUT DOWN PUMP AND POOH. 01:15 - 02:00 0.75 BOPSUR P PRE TAG STRIPPER, L/D FREEZE PROTECT BHA. 02:00 - 02:30 0.50 BOPSUR P PRE WAIT ON GREASE CREW AND BPV CREW TO ARRIVE. 02:30 - 03:20 0.83 BOPSUR P PRE PJSM THEN GREASE SWAB AND MASTER VALVES. SET BPV WITH T BAR AND CLOSE MASTER VALVE. 103:20 - 03:40 0.33 BOPSUR P PRE PJSM WITH N2 CREW FOR PURGE OF REEL. 03:40 - 05:00 1.33 BOPSUR P PRE PUMP 40 BBLS FRESH WATER THROUGH REEL, FOLLOWED BY 10 BBLS INHIBITOR AND 5 BBLS MEOH. FOLLOW WITH N2 THEN ALLOW PRESSURE TO BLEED OFF. Printed 6/11/2010 3:32:35PM • • North America - ALASKA - BP Page 10 : 0 f 10 Operation Summary Report Common Well Name: 05 -25 AFE No Event Type: COM- ONSHORE (CON) Start Date: 5/27/2010 End Date: 6/4/2010 X3- 00TWB -C (1,116,966.00 ) Project: Prudhoe Bay Site: PB DS 05 Rig Name /No.: NORDIC 1 Spud Date/Time: Rig Release: 6/5/2010 Rig Contractor: NORDIC CALISTA UWI: Active Datum: 50 : 25 7/29/1996 00:00 @72.1ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:00 - 09:00 4.00 RIGD P PRE PJSM THEN POP OFF WELL. PREP TO PULL CT ACROSS PIPE SHED ONTO REEL. INSTALL INTERNAL GRAPPLE IN CT. 09:00 - 09:20 0.33 RIGD P PRE PJSM REGARDING REEL SWAP. DISCUSS GOOD COMMUNICATION, KEEPING THE AREA CLEAR AND DROPPED PREVENTION PLAN. NOTIFIED — ----- -- -- -- — -- DSO TO KEEP AREA CLEAR. 09:20 - 11:00 1.67 RIGD P PRE BEGIN PLANNED REEL SWAP FROM 2" COIL TO 2 3/8" COIL. 11:00 - 18:00 7.00 RIGD P j PRE REEL SWAP COMPLETE. INSTALL INNER REEL IRON AND BEGIN TO ND BOPE. SWAP OUT BOP RAMS AND START HCR CHANGEOUT. 18:00 - 22:00 4.00 RIGD P PRE COMPLETE CHANGEOUT OF HCR. PERFORM LO/TO ON BOP KOOMEY UNIT AND START N/D STACK. REMOVE ANNULAR BOP CAP, PREP TO REPLACE ELEMENT. SUMMER HIRES CONTINUE CLEANING AND PAINTING IN BOILER #1 ROOM AND IN DOGHOUSE. 22:00 - 00:00 2.00 RIGD P PRE REMOVE STUDS ON ADAPTER FLANGE BELOW BOPS, SINCE NEXT TREE IS A DIFFERENT SIZE. CHANGE OUT HYDRAULIC QUICK CONNECT FITTINGS ON HCR HYDRAULIC LINES. LIFT UP STACK AND REMOVE CROSSOVER FLANGE. INSTALL TREE CAP. PRESSURE TEST REE CAP TO 4000 PSI, GOOD. RELEASE RIG AT 24:00. Printed 6/11/2010 3:32:35PM • BAKER ES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 05 05 -25 - Slot 25 05 -25C Survey: MWD Survey Report - Geographic 28 May, 2010 • • BAKE! HUGHES Survey Report - Geographic IINTEQ Company: North America - ALASKA - BP Local Co Reference: Well 05 -25 - Slot 25 Project: Prudhoe Bay TVD Reference: 50 : 25 7/29/1996 00 :00 (g 72.13ft (Doyon # 9) Site: PB DS 05 MD Reference: 50 : 25 7/29/1996 00:00 (g 72.13ft (Doyon # 9) Well: 05 - 25 North Reference: True Wellbore: 05 - 25C Survey Calculation Method: Minimum Curvature Design: 05 -25C 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 PB DS 05, TR -11 -15 Site Position: Northing: 5,947,204.70ft Latitude: 70° 15' 35.696 N From: Map Easting: 697,428.91 ft Longitude: 148° 24' 14.424 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 1.50 ° ' Well 05 - 25 API No 500292198800 Well Position +N/ 0.00 ft Northing: 5,948,888.67 ft Latitude: 70°15' 52.300 N +E / - 0.00 ft Easting: 697,245.85 ft Longitude: 148° 24' 18.465 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00ft Wellbore 05 - 25C API No 500292198803 Magnetics Model Name Sample Date Declination Dip Angle Field Strength ( °) ( °) (nT) BGGM2009 9/29/2009 22.61 80.94 57,679 Design 05 - 25C Audit Notes: Version: Phase: ACTUAL Tie On Depth: 9,528.41 Vertical Section: Depth From (TVD) +NI-S +E / -W Direction (ft) (ft) (ft) (°) 38.13 0.00 0.00 237.15 Survey Program Date: 5/28/2010 From To (ft) (ft) Survey (Wellbore) Tool Name Description 40.30 9,261.58 Survey #1 Schlumberger GCT ms (05 -25) GCT -MS Schlumberger GCT multishot 9,280.00 9,528.41 2 : MWD - Standard (05 -25A) MWD MWD - Standard 9,551.00 11,929.00 MWD (05 -25C) MWD MWD - Standard 5/28/2010 10.36:51 AM Page 2 COMPASS 2003.16 Build 71 Ai 17 BAILER HUGHES Survey Report - Geographic 1NTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 05 -25 - Slot 25 Project: Prudhoe Bay TVD Reference: 50 : 25 7/29/1996 00 :00 © 72.13ft (Doyon # 9) Site: PB DS 05 MD Reference: 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) Well: 05 -25 North Reference: True Wellbore: 05 -25C Survey Calculation Method: Minimum Curvature Design: 05 -25C Database: EDM .16 - Anc Prod - WH24P ;s erver Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E/ -W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 9,528.41 14.78 209.95 8,763.57 - 714.39 - 2,655.37 5,948,105.00 694,610.26 70° 15 45.270 N 148° 25' 35.736 W TIP 9,551.00 15.79 198.22 8,785.36 - 719.81 - 2,657.77 5,948,099.52 694,608.00 70° 15' 45.216 N 148° 25' 35.806 W KOP 9,570.36 17.52 206.11 8,803.91 - 724.93 - 2,659.87 5,948,094.35 694,606.03 70°15' 45.166 N 148° 25' 35.867 W 9,605.22 23.42 216.09 8,836.57 - 735.25 - 2,666.27 5,948,083.86 694,599.91 70° 15 45.064 N 148° 25' 36.053 W 9,635.24 27.25 221.90 8,863.70 - 745.19 - 2,674.38 5,948,073.71 694,592.06 70° 15' 44.967 N 148° 25' 36.289 W 9,665.10 32.25 228.31 8,889.62 - 755.59 - 2,684.90 5,948,063.04 694,581.82 70° 15' 44.864 N 148° 25' 36.595 W 9,695.56 37.08 231.20 8,914.67 - 766.76 - 2,698.14 5,948,051.53 694,568.88 70° 15' 44.755 N 148° 25' 36.980 W 9,729.40 43.21 232.81 8,940.53 - 780.17 - 2,715.33 5,948,037.68 694,552.04 70° 15' 44.623 N 148° 25' 37.480 W 9,760.24 48.67 235.79 8,961.97 - 793.07 - 2,733.33 5,948,024.31 694,534.38 70° 15' 44.496 N 148° 25' 38.004 W 9,790.46 54.95 239.25 8,980.64 - 805.79 - 2,753.37 5,948,011.07 694,514.69 70° 15' 44.370 N 148° 25' 38.587 W 9,820.58 60.67 242.63 8,996.69 - 818.14 - 2,775.65 5,947,998.14 694,492.74 70° 15' 44.249 N 148° 25' 39.235 W 9,855.94 66.80 246.44 9,012.33 - 831.74 - 2,804.27 5,947,983.80 694,464.49 70° 15' 44.115 N 148° 25' 40.068 W 9,885.80 72.00 250.21 9,022.84 - 842.04 - 2,830.24 5,947,972.82 694,438.81 70° 15' 44.014 N 148° 25' 40.823 W 9,915.42 77.35 254.38 9,030.67 - 850.71 - 2,857.44 5,947,963.44 694,411.84 70° 15' 43.928 N 148° 25' 41.615 W 9,945.56 82.74 258.81 9,035.88 - 857.58 - 2,886.30 5,947,955.82 694,383.17 70° 15 43.861 N 148° 25' 42.454 W 9,975.40 85.86 264.31 9,038.84 - 861.93 - 2,915.65 5,947,950.70 694,353.94 70° 15' 43.818 N 148° 25' 43.309 W 10,005.46 88.16 270.82 9,040.41 - 863.20 - 2,945.63 5,947,948.64 694,324.01 70° 15' 43.805 N 148° 25' 44.181 W 10,035.52 89.85 278.27 9,040.94 - 860.82 - 2,975.57 5,947,950.24 694,294.02 70° 15' 43.828 N 148° 25' 45.052 W 10,066.60 90.40 285.49 9,040.87 - 854.43 - 3,005.96 5,947,955.83 694,263.47 70° 15' 43.891 N 148° 25' 45.937 W 10,096.14 90.71 292.23 9,040.58 - 844.89 - 3,033.90 5,947,964.64 694,235.30 70° 15' 43.985 N 148° 25' 46.750 W 10,126.00 90.28 287.87 9,040.32 - 834.65 - 3,061.94 5,947,974.13 694,207.00 70° 15' 44.085 N 148° 25' 47.566 W 10,155.58 89.82 281.88 9,040.30 - 827.06 - 3,090.52 5,947,980.97 694,178.24 70° 15' 44.160 N 148° 25' 48.397 W 10,186.20 89.85 276.26 9,040.39 - 822.24 - 3,120.74 5,947,985.00 694,147.90 70° 15' 44.207 N 148° 25' 49.277 W 10,216.12 89.14 270.83 9,040.65 - 820.39 - 3,150.59 5,947,986.07 694,118.01 70° 15' 44.225 N 148° 25' 50.146 W 10,245.82 87.73 265.95 9,041.46 - 821.22 - 3,180.26 5,947,984.46 694,088.38 70° 15' 44.217 N 148° 25' 51.009 W 10,280.56 87.30 258.78 9,042.97 - 825.83 - 3,214.64 5,947,978.95 694,054.13 70° 15' 44.172 N 148° 25' 52.009 W 10,308.74 87.51 252.19 9,044.25 - 832.88 - 3,241.87 5,947,971.19 694,027.09 70° 15' 44.102 N 148° 25' 52.802 W 10,340.24 88.01 246.14 9,045.48 - 844.07 - 3,271.28 5,947,959.24 693,997.99 70° 15' 43.992 N 148° 25' 53.657 W 87.94 239.73 9,046.55 - 857.83 - 3,298.21 5,947,944.77 693,971.43 70° 15' 43.856 N 148° 25' 54.441 W 10,370.52 10,385.18 88.34 237.00 9,047.03 - 865.52 - 3,310.68 5,947,936.77 693,959.16 70° 15 43.781 N 148° 25' 54.804 W 10,415.60 89.51 231.65 9,047.60 - 883.25 - 3,335.38 5,947,918.39 693,934.94 70° 15' 43.606 N 148° 25' 55.522 W 10,447.98 89.23 227.05 9,047.95 - 904.34 - 3,359.94 5,947,896.67 693,910.94 70° 15' 43.399 N 148° 25' 56.236 W 10,480.36 89.97 223.40 9,048.18 - 927.14 - 3,382.92 5,947,873.28 693,888.57 70° 15' 43.174 N 148° 25' 56.905 W 10,510.84 91.20 221.02 9,047.87 - 949.71 - 3,403.40 5,947,850.18 693,868.69 70° 15' 42.952 N 148° 25' 57.500 W 10,540.58 90.89 217.27 9,047.33 - 972.77 - 3,422.16 5,947,826.64 693,850.54 70° 15' 42.726 N 148° 25' 58.046 W 10,570.00 89.94 212.00 9,047.11 - 996.96 - 3,438.88 5,947,802.01 693,834.46 70° 15' 42.487 N 148° 25' 58.532 W 10,600.44 89.42 208.08 9,047.28 - 1,023.31 - 3,454.11 5,947,775.28 693,819.93 70° 15' 42.228 N 148° 25' 58.975 W 10,630.60 89.42 203.81 9,047.59 - 1,050.42 - 3,467.30 5,947,747.83 693,807.45 70° 15' 41.962 N 148° 25' 59.359 W 10,660.50 89.26 199.54 9,047.93 - 1,078.20 - 3,478.34 5,947,719.78 693,797.14 70° 15' 41.688 N 148° 25' 59.680 W 10,690.50 91.20 198.09 9,047.81 - 1,106.59 - 3,488.02 5,947,691.14 693,788.21 70° 15 41.409 N 148° 25' 59.961 W 10,720.42 92.76 194.23 9,046.78 - 1,135.31 - 3,496.34 5,947,662.22 693,780.65 70° 15 41.127 N 148° 26' 0.202 W 10,750.46 91.96 189.92 9,045.54 - 1,164.65 - 3,502.62 5,947,632.72 693,775.14 70° 15' 40.838 N 148° 26' 0.385 W 10,780.32 91.04 187.09 9,044.76 - 1,194.17 - 3,507.03 5,947,603.10 693,771.50 70° 15' 40.548 N 148° 26' 0.513 W 10,810.34 89.75 184.09 9,044.55 - 1,224.04 - 3,509.95 5,947,573.16 693,769.36 70° 15 40.254 N 148° 26' 0.597 W 10,840.32 87.26 185.60 9,045.33 - 1,253.90 - 3,512.49 5,947,543.25 693,767.62 70° 15' 39.960 N 148° 26' 0.671 W 10,870.24 86.56 188.21 9,046.95 - 1,283.56 - 3,516.08 5,947,513.51 693,764.80 70° 15' 39.668 N 148° 26' 0.775 W 10,900.36 87.02 191.13 9,048.63 - 1,313.20 - 3,521.13 5,947,483.75 693,760.53 70° 15' 39.377 N 148° 26' 0.921 W 10,931.56 89.14 194.06 9,049.68 - 1,343.63 - 3,527.93 5,947,453.16 693,754.53 70° 15' 39.078 N 148° 26' 1.119 W 10,961.44 90.64 194.12 9,049.74 - 1,372.61 - 3,535.20 5,947,424.00 693,748.02 70° 15' 38.793 N 148° 26' 1.330 W 10,990.24 91.59 197.83 9,049.18 - 1,400.29 - 3,543.12 5,947,396.12 693,740.83 70° 15' 38.520 N 148° 26' 1.560 W 11,021.54 94.45 202.09 9,047.53 - 1,429.66 - 3,553.79 5,947,366.48 693,730.93 70° 15' 38.231 N 148° 26' 1.870 W 11,051.80 92.21 203.18 9,045.77 - 1,457.54 - 3,565.41 5,947,338.31 693,720.04 70° 15' 37.957 N 148° 26' 2.208 W 11,082.84 89.57 205.80 9,045.29 - 1,485.77 - 3,578.28 5,947,309.75 693,707.93 70° 15' 37.679 N 148° 26' 2.582 W 5/28/2010 10:36:51AM Page 3 COMPASS 2003.16 Build 71 May • BAKER HIUGNIS Survey Report - Geographic INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference; Well 05 - 25 - Slot 25 Project: Prudhoe Bay TVD Reference: 50 : 25 7/29/1996 00:00 C42 72.13ft (Doyon # 9) Site: PB DS 05 MD Reference: 50 : 25 7/29/1996 00:00 © 72.13ft (Doyon # 9) Well: 05 -25 North Reference: True Wellbore: 05 -25C Survey Calculation Method: Minimum Curvature Design: 05 -25C 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) i (ft) (ft) Latitude Longitude (1 (l el O 11 l) O (1 g I 11,111.94 8919 206.92 9,045.58 - 1,511.85 - 3,591.20 5,947,283.35 693,695.69 70° 15' 37.423 N 148° 26' 2.957 W 11,140.60 89.63 203.94 9,045.85 - 1,537.73 - 3,603.50 5,947,257.16 693,684.07 70° 15' 37.168 N 148° 26' 3.315 W 11,170.24 89.36 199.11 9,046.11 - 1,565.29 - 3,614.37 5,947,229.32 693,673.93 70° 15' 36.897 N 148° 26' 3.631 W 11,200.12 88.19 195.34 9,046.75 - 1,593.82 - 3,623.22 5,947,200.57 693,665.83 70° 15' 36.617 N 148° 26' 3.888 W 11,230.26 87.55 191.72 9,047.87 - 1,623.10 - 3,630.26 5,947,171.12 693,659.56 70° 15' 36.329 N 148° 26' 4.093 W I 11,260.36 88.46 190.26 9,048.91 - 1,652.62 - 3,636.00 5,947,141.45 693,654.60 70° 15' 36.038 N 148° 26' 4.259 W 1 11,290.34 88.96 187.48 9,049.59 - 1,682.24 - 3,640.62 5,947,111.73 693,650.76 70° 15' 35.747 N 148° 26' 4.393 W 11,321.16 88.19 184.62 9,050.36 - 1,712.87 - 3,643.87 5,947,081.02 693,648.31 70° 15' 35.446 N 148° 26' 4.487 W 11,344.28 88.07 183.67 9,051.11 - 1,735.92 - 3,645.54 5,947,057.94 693,647.25 70° 15' 35.219 N 148° 26' 4.535 W 11,370.36 88.62 182.58 9,051.86 - 1,761.95 - 3,646.96 5,947,031.88 693,646.51 70° 15' 34.963 N 148° 26' 4.576 W 11,400.58 89.51 179.07 9,052.36 - 1,792.16 - 3,647.39 5,947,001.68 693,646.86 70° 15' 34.666 N 148° 26' 4.589 W 11,430.40 90.46 176.77 9,052.37 - 1,821.95 - 3,646.31 5,946,971.92 693,648.73 70° 15' 34.373 N 148° 26' 4.557 W I 11,460.16 90.71 174.03 9,052.06 - 1,851.61 - 3,643.92 5,946,942.33 693,651.89 70° 15' 34.081 N 148° 26' 4.487 W 11,489.98 91.96 170.86 9,051.37 - 1,881.16 - 3,640.01 5,946,912.90 693,656.58 70° 15' 33.790 N 148° 26' 4.372 W 11,520.34 92.24 167.10 9,050.25 - 1,910.94 - 3,634.21 5,946,883.29 693,663.16 70° 15' 33.498 N 148° 26' 4.203 W 11,548.64 93.44 164.58 9,048.85 - 1,938.34 - 3,627.29 5,946,856.08 693,670.79 70° 15' 33.228 N 148° 26' 4.002 W 11,581.00 92.30 168.29 9,047.23 - 1,969.75 - 3,619.72 5,946,824.88 693,679.18 70° 15' 32.919 N 148° 26' 3.781 W 11,610.54 90.58 171.08 9,046.49 - 1,998.80 - 3,614.43 5,946,795.98 693,685.23 70° 15' 32.634 N 148° 26' 3.627 W 11,640.58 88.59 172.70 9,046.71 - 2,028.54 - 3,610.19 5,946,766.36 693,690.24 70° 15' 32.341 N 148° 26' 3.503 W 11,675.08 88.31 175.03 9,047.64 - 2,062.83 - 3,606.51 5,946,732.19 693,694.83 70° 15' 32.004 N 148° 26' 3.395 W 11,700.64 87.91 177.05 9,048.48 - 2,088.31 - 3,604.74 5,946,706.76 693,697.26 70° 15' 31.753 N 148° 26' 3.343 W 11,730.74 89.08 179.42 9,049.27 - 2,118.38 - 3,603.81 5,946,676.72 693,698.97 70° 15' 31.458 N 148° 26' 3.316 W 11,760.08 90.34 181.61 9,049.42 - 2,147.72 - 3,604.08 5,946,647.39 693,699.48 70° 15' 31.169 N 148° 26' 3.323 W 11,789.08 91.26 178.53 9,049.02 - 2,176.71 - 3,604.11 5,946,618.41 693,700.20 70° 15' 30.884 N 148° 26' 3.324 W 11,819.52 91.20 176.12 9,048.36 - 2,207.11 - 3,602.69 5,946,588.06 693,702.42 70° 15' 30.585 N 148° 26' 3.282 W 11,850.58 90.95 172.77 9,047.78 - 2,238.01 - 3,599.69 5,946,557.25 693,706.23 70° 15' 30.281 N 148° 26' 3.194 W 11,880.36 89.14 169.85 9,047.76 - 2,267.45 - 3,595.19 5,946,527.94 693,711.50 70° 15' 29.992 N 148° 26' 3.063 W 11,890.70 89.36 169.15 9,047.89 - 2,277.61 - 3,593.31 5,946,517.83 693,713.65 70° 15' 29.892 N 148° 26' 3.008 W 11,929.00 89.36 169.15 9,048.32 - 2,315.22 - 3,586.10 5,946,480.43 693,721.84 70° 15' 29.522 N 148° 26' 2.798 W TD - PRODUCTION LINER 1 5/28/2010 10:36:51AM Page 4 COMPASS 2003.16 Build 71 TREE = • 4" CM/ SAFETY : WELL ANGLE > 70° @ WELLHEAD = FMC J WI D DRAP 9856' * * *O G WELL, 05-25A& 05 -25B NOT R ACTUATO BAKER C Q 5 -Z 5 SHOWN BELOW WHIPSTOCK * ** KB. ELEV T = 72.1' BF. ELEV= I I KOP = 4000' Max Angle = 94° @ 11022' Datum MD = 9645' I 2189' H4 -1/2" CAMCO BAL -O SSSVN, ID = 3.812" I Datum TVD = 8800' SS GAS LIFT MANDRELS I 110 -3/4" CSG, 45.5 #, J -55 BTC, ID = 9.953" H 3490' ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 3583 3582 2 KBMG -M DMY BK 0 11/18/00 2 3826 3824 5 KBMG -M SO BK 20 06/11/10 �� 3893' H7-5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.958" I Minimum ID = 1.780" @ 9455' i �— BTT DEPLOYMENT SLEEVE 8765' I--17 - 5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.958" 1 8798' 1 HES XN NIP, ID = 3.725" 8818' I — 7 -5/8" X 5-1/Z' BKR ZXP LTP w /TIEBACK SLV & HMC LNR HGR, ID = 4.892" 4 -1/2" TBG, 12.6 #, L -80 BTC-M, — 8820' I j 8820' 1 WLEG, ID = 3.958" .0152 bpf, ID = 3.958" 8840' 1 X 3-1/2" XO, ID = 2.992" I 8874' H7-5/8" X 5-1/2" BKR HY -FLO II LNR HGR, ID = 4.892" I 17-5/8" CSG, 29.7 #, L-80 BTC-M, ID = 6.875" I - 1 9220' 5 -1/2" MILLOUT WINDOW (05 - 25A) 9272' I 5 -1/2" LNR, 17 #, L -80 FL4S, H 9272' (/ .0232 bpf, ID = 4.892" 9442' H3 -1/2" KB LIP, ID = 1.810" I I TOC IH 9447' 9447' H2.70" BTT DEPLOYMENT SLV, ID = 1.780" I 13 -1/2" WHIPSTOCK (05/23/10) IH 9551' / 1 3 -1/2" MILLOUT WINDOW (05 - 25C) 9551' - 9557' IRA TAG I 9575' `. 3 -1/2" LNR, 9.3 #, L -80 NSCT /STL, — 11916' 1 .0087 bpf, ID = 2.992" N PERFORATION SUMMARY � • ∎• �■ • , REF LOG: SWS CCL /GR/MCNL ON 06/02/10 1 PBTD 1—I 11913' 04 ANGLE AT TOP PERF: 91° @ 10979' Note: Refer to Production DB for historical perf data SIZE SIT INTERVAL Opn /Sqz DATE 12-3/8" LNR, 4.7 #, L -80 STL, .0039 bpf, ID = 1.995" I - 1 11929' I 1.56" 6 10979 - 11359 0 06/06/10 1.56" 6 11535 - 11870 0 06/06/10 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/12/90 N28E ORIGINAL COMPLETION 06/21/10 ? /JMD DRLG DRAFT CORRECTIONS WELL: 05 -25C 08/27/96 D9 RWO - SIDETRACK PERMIT No: '091240 10/31/00 ? CTD - SIDETRACK (05 -25B) API No: 50 - 029 - 21988 - - 06/03/10 NORDIC 1 CTD - SIDETRACK (05 - 25C) SEC 32, T11 N, R15E, 2558' FNL & 173' FWL 06/06/10 SV DRLG HO CORRECTIONS 06/14/10 CJN/SV GLV /0 (06/11/10) BP Exploration (Alaska) TREE = 4" CIW = FMC • SAFETY N WELL ANGLE > 70° @ ..,.... ...... �,...,. -..ry 9856'. * * *OELL, 05 -25A & 05-25B NOT ACTUATOR = AKER C 05-25C Z SHOWN BELOW WHIPSTOCK * ** KB. ELEV = 72.1' BF. ELEV = _ F KOP = 4000' Max Angle = 94° @ 11022' 2189' 1-1 -112" CAMCO GAS LIFT BAL -O M SSSVNANDRELS , ID = 3.812" 1 Datum MD = 9645' Datum TV D = 8800' SS P-- 110 -3/4" CSG, 45.5 #, J -55 BTC, ID = 9.950" H 3490' , ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 3583 3582 2 KBMG -M DMY BK 0 11/18/00 2 3826 3824 5 KBMG -M SO BK 20 06/11/10 Minimum ID =1.780" @ 9455' Z 1 3893' 1-17-5/8" X 4-1/2" BKR S -3 PKR, ID = 3.958" 1 BTT DEPLOYMENT SLEEVE Z 1 8765' H 7 -5/8" X 4 -112" BKR S -3 PKR, ID = 3.958" 1 1 ! , 8798' 1- 14 -1/2" HES XN NIP, ID = 3.725" I 8818' 1 — 7 -5/8" X 5-1/2" BKR ZXP LTP w /TIEBACK SLV & HMC LNR HGR, ID = 4.892" 4 -1/2" TBG, 12.64, L -80 BTC -M, — 8820' 1 7 \ 1 1 8820' x - 1/2" WLEG, ID = 3.958" 1 .0152 bpf, ID = 3.958" 8840' 1 - 1/2" X 3 -1/2" XO, ID = 2.992" 1 1 8874' H 7-5/8" X 5 -1/2" BKR HY -FLO II LNR HGR, ID = 4.892" 1 7-5/8" CSG, 29.7 4, L -80 BTC M, ID = 6.875" 1 9220' 1 , 5 -1/2" MILLOUT WINDOW (05 - 25A) 9272' 5 -1/2" LNR, 17 #, L -80 FL4S, H 9272' .0232 bpf, ID = 4.892" 9442' F13 -1/2" KB LTP, ID = 1.810" 1 ITOC1-1 —944'' i 1 1 9447' H 2.70" BTT DEPLOYMENT SLV, ID = 1.780" I 13 -1/2" WHIPSTOCK (05/23/10) 1 - 1 9551' f r, 3 - 1/2" MILLOUT WINDOW (05 - 25C) 9551' - 9557' RA TAG 1-L 9575' ^ + 4 3 -1/2" LNR, 9,34, L -80 NSCT /STL, — 11916' 1 A .0087 bpf, ID = 2.992" • 4144 14% PERFORATION SUMMARY � *Ni ���♦ � REF LOG: SWS CCL /GR/MCNL ON 06/02/10 1 PBTD H 11913' O. ANGLE AT TOP PERF: 91° @ 10979' Note: Refer to Production D8 for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE 12-3/8" LNR, 4.7 #, L -80 STL, .0039 bpf, ID = 1.995" 11929' 1.56" 6 10979 - 11359 0 06/06/10 H 1 J 1.56" 6 11535 - 11870 0 06/06/10 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/12/90 N28E ORIGINAL COMPLETION 07/27/10 RP /JMD DRLG DRAFT CORRECTIONS WELL: 05 -25C 08/27/96 D9 RWO - SIDETRACK PERMIT No: 1091240 10/31/00 ? CTD - SIDETRACK (05 -25B) API No: 50 - 21988 - - 06/03/10 NORDIC 1 CTD - SIDETRACK (05 - 25C) SEC 32, T11 N, R15E, 2558' FNL & 173' FWL 06/06/10 SV DRLG HO CORRECTIONS 06/14/10 CJN/SV GLV C/O (06/11/10) BP Exploration (Alaska) • 0 ( 7 ‘ I \ I � a , g ' SEAN PARNELL, GOVERNOR 6 u t k ALASSA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVA'rION COMMISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 / FAX (907) 276 -7542 Mr. John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99516 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 05 -25C BP Exploration (Alaska), Inc. Permit No: 209 -124 Surface Location: 2558' FNL, 173' FWL, SEC. 32, T11N, R15E, UM Bottomhole Location: 4698' FNL, 3436' FEL, SEC. 31, T11N, R15E, 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 ermit in the event it was erroneously issued. p Y 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. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659 -3607 (pager). Sincerely, Cat o erster Commissioner /� DATED this / day of October, 2009 cc: Department of Fish 85 Game, Habitat Section w/o encl. Department of Environmental Conservation w/ o encl. STATE OF ALASKA ` ALAS•IL AND GAS CONSERVATION COMMI N RECEIVED t PERMIT TO DRILL 20 AAC 25.005 OCT 1 2 2009 la. Type of work: 1 b. Proposed Well Class: ® Development Oil ❑ Service - Winj ❑ Single Zone lc. Speci del " ro • ed fo • . El Drill ® Redrill ❑ Stratigraphic Test ❑ Development Gas ❑ Service - Supply ❑ Multiple Zone A Q t P - l : �* ❑ Re -Entry ❑ Exploratory ❑ Service - WAG ❑ Service - Disp Anchle Gas 2. Operator Name: 5. Bond: ® Blanket ❑ Single Well 11. Well Name and Number: BP Exploration (Alaska) Inc. Bond No. 6194193 PBU 05 -25C 3. Address: 6. Proposed Depth: 12. Field / Pool(s): P.O. Box 196612, Anchorage, Alaska 99519 -6612 MD 11675 TVD 8978 ss Prudhoe Bay Field / Prudhoe 4a. Location of Well (Govemmental Section): 7. Property Designation (Lease Number): Bay Oil Pool Surface: ADL 028326 2558' FNL, 173' FWL, SEC. 32, T11N, R15E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 3231' FNL, 2396' FEL, SEC. 31, T11N, R15E, UM November 20, 2009 • Total Depth: 9. Acres in Property: 14. Distance to Nearest Property: 4698' FNL, 3436' FEL, SEC. 31, T11N, R15E, UM 2560 25500' 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 72.13' feet 15. Distance to Nearest Well Open Surface: x - 697246 y- 5948888 Zone ASP4 GL Elevation above MSL: 34' feet to Same Pool: 1300' 16. Deviated Wells: Kickoff Depth: 9570 feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 90 degrees Downhole: 3182 Surface: 2302 18. Casing Program: [ Specifications Top Setting Depth - Bottom Quantity of Cement, c.f. or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 3" 2 - 3/8" 4.7# L - 80 STL 2315' 9360' 8603 11675' 8978 ss 54 sx Class 'G' 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re - entry Operations) Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effective Depth MD (ft): Effective Depth TVD (ft): Junk (measured): 11582' 9045' 10060' 11544' 9044' None Casing Length Size Cement Volume MD TVD Conductor / Structural 110' 20" 2150 # Poleset 110' 110' Surface 3490' 10 -3/4" 1000 sx CS III. 350 sx Class 'G'. 157 sx CS II 3490' 3490' Intermediate 9220' 7 -5/8" 410 sx Class 'G' 9220' 8483' Production Liner 398' 5 -1/2" 155 sx Class 'G' 8874' - 9272' 8188' - 8527' Liner 1152' 3 -1/2" 135 sx Class 'G' 8818' - 9970' 8140' - 9043' Liner 2007' 2 -3/8" 77 sx LARC 9574' - 11581' 8808' - 9045' Perforation Depth MD (ft): 9926' - 11203' Perforation Depth TVD (ft): 9033' - 9048' 20. Attachments: ❑ Property Plat ® BOP Sketch ® Drilling Program ❑ Time vs Depth Plot Shallow Hazard Analysis ❑ Diverter Sketch ❑ Seabed Report IR Drilling Fluid Program bid AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: � Date: 22. I hereby certify that the foregoing is true and correct. Contact Ron Phillips, 564 -5913 Printed Name John McM en Title Engineering Team Leader Prepared By Name/Number Signature d � Phone 564 -4711 Date /6 / C Y Terrie Hubble, 564 -4628 Commission Use Only Permit To • rill API Number: Permit loyal ate' See cover letter for Number: ,..7,09/...?•$i 50- 029 - 21988 -03 -00 / 4 0 q other requirements Conditions of Approval: If box is checked, explore for, test, or produce coalbed m hane gas hydrates, or gas contained shales: PP well may D , - � Y P P 12/No ,/ hane, 9 Y , 9 53I Other: 0 3500 psi 13°I /Gs /� not be used to ex — Samples Req'd: ❑ es 120 Mud Log Req'd: _❑es ,,y �No ZS00 �S • Arl y`4 ,,.Lai- le-5 Cam H Measures: ['Yes ❑ No Directional Survey Req'd: I Yes ❑ No Date (6 .J a / APPROVED BY T COMMI SIO ER Form 10-401 Revised 07/2009 Th o m ( 1 \ f A1 rm' i v li 4 months from the da . of approval (20 AA 25.005(g)) Submit In Duplicate /v i• 0 4 -(!) 015 1 Pg- • • �bp BPXA Prudhoe Bay 05 -25C CTD Sidetrack October 06, 2009 CTD Sidetrack Summary Pre -Rig Work: (scheduled to begin October 23, 2009). 1. S Dummy WS drift to 9,574'. 2. S Dummy GLV's. 3. E Set 3 -1/2" Monobore packer whipstock 25ROHS at 9,550'. 4. 0 MIT -IA 5. 0 AC -LDS; AC- PPPOT -T J u ^i 02; 307- 330 6. 0 PT MV, SV, WV 7. 0 Bleed gas lift and production flowlines down to zero and blind flange. 8. 0 Remove wellhouse, level pad. Rig Work: (scheduled to begin on November 20, 2009) 1. MIRU and test BOPE to 250 psi low and 3500 psi high. ` . 27 7 2. Mill 2.8" window at 9,550' and 10' of rathole. Swap the well to Geo -Vis. • 3. Drill Build: 3.0" OH, 436' (20° /100) with resistivity. 4. Drill Lateral: 3.0" OH, 1,689' (12° /100) with resistivity. 5. Run 2 -3/8" L-80 liner leaving TOL at 9,360'. 6. Pump primary cement leaving TOC at TOL (9,360'), 11.1 bbls of 15.8 ppg liner cmt planned. 7. Cleanout liner and MCNL/GR/CCL log. 8. Test liner lap to 2,000 psi. 9. Perforate liner per asset instructions (-1,200'). 10. Plan on setting a LTP (only 190' of liner lap). 11. Freeze protect well, RDMO. Post -Rig Work: 1. Re- install wellhouse and FL's. 2. Generic GLV's 3. RU test separator, flow test well • • Mud Program: • Well kill: 8.6 ppg brine. • Milling /drilling: 8.6 ppg Geo Vis or biozan for milling, new 8.6 ppg Geo Vis for drilling. Disposal: • All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. • All Class I wastes will go to Pad 3 for disposal. Hole size: 3" Casing Program: fully cemented liner • 2 -3/8 ", L -80, 4.7# STL connection solid liner from 11,675' — 9,360'. • A minimum of 11.1 bbls 15.8 ppg cement will be used for liner cementing. (Assuming TD @ 11,675' and planning on 20% excess in the open hole interval) • TOC planned at 9,360'. 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 2500 psi. Directional • See attached directional plan. Maximum planned hole angle is 90 °. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property — 25,500' ft to the East • Distance to nearest well within pool —1300 ft. (02 -03B) Logging • MWD directional, Gamma Ray, and Resistivit(wiil be run over all of the open hole section. • Cased hole GR/CCL/MCNL logs will be run. Anti - Collision i • 05 -25B: 05 -25C will pass within 25' of 05 -25B at 10,599' MD. Hazards • Two small throw fault crossings expected in the horizontal near 10,050' and 11,650'. • The maximum recorded H2S level on DS -05 was 580 ppm on well 05 -09. Drill site 05 is considered an H2S pad. • Lost circulation risk is low for this well. Reservoir Pressure • The reservoir pressure on 05 -25C is expected to be 3,182 psi at 8,800' TVDSS. (7.0 ppg equivalent) • Max. expected surface pressure with gas (0.10 psi /ft) to surface is 2,302 psi. Ron Phillips CTD Engineer CC: Well File Sondra StewmanlTerrie Hubble TREE = 4" CW SAFETY TES: ORIG W ELLBORE & SDTRCK "A" ( 3- WELLHEAD = FMC 1/2" SNR P &A'D w /CMT) * ** WELL ANGLE> 70° ACTUATOR = BAKER C 05 B , @ 9904' * KB. ELEV = 72.1' BF. ELEV_ KOP = 4000' Max Angle = 98 @ 10169' I 2189' H4 -1/2" CAMCO BAL -O SSSVN, ID = 3.812" I Datum MD = 9645' Datum TVD = 8800' SS 110 -3/4" CSG, 45.5 #, J -55 BTC, ID = 9.953" H 3490' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE IM 1 3583 3582 2 KBMG -M DMY BK 0 11/13/00 2 3826 3824 5 KBMG -M SO BK 20 11/13/00 Minimum ID = 1.941" @ 9574' � — Ej--1 3893' H 7 -5/8" X 4 -1 /2" BKR S-3 PKR ID = 3.958" 1 TOP OF 2 -3/8" LINER ∎�� 8765' H7 -5/8" X 4 -1/2" BKR S-3 PKR D = 3.958" I ' 1 8798' H4 -1/2" HES XN N1, ID = 3.725" , 8818' 1- 7 -5/8" X 5-1/2" BKR ZXP PKR w / 6' TIEBACK & HMC LNR HGR ID = 4.892" 4 -1/2" TBG, 12.6 #, L -80 BTC -M, -{ 8820'1 A 8820' J — I4 - 1/2" WLEG, ID = 3.958" I .0152 bpf, ID = 3.958" 8840' H5 -1/2" X 3-1/2" XO, ID = 2.992" 1 8874' H7-5/8" X 5 -1/2" BKR HY -FLO II LNR HGR ID = 4.892" I 17 -5/8" CSG, 29.7 #, L -80 BTC-M, ID = 6.875" H 9220' 1 9574' J -f2.70" BKR DEPLOY SLV, ID = 1.969" I 13 -1/2" WHIPSTOCK H 9967' ■ j i i i RA TAG 9972' : 3 -1/2" MILLOUT WINDOW (05 -25B) 9970' - 9975' $ PERFORATION SUMMARY • 0, REF LOG: SWS CCL/GR/MCNL ON 10/29/00 ANGLE AT TOP PERF: 74° © 9926' •.,, Note: Refer to Production DB for historical pert data .4 `P 10060' H 2-3/8" BKR CEP (05/11/04)1 SIZE SPF INTERVAL Opn /Sqz DATE 444'f' )/7 1- 11/16" 6 9926 - 9976 0 05/12/04 1 4 4 `� 1- 11/16" 6 9990 - 10040 0 11/22/03 1 `, 1- 11/16" 4 10128 - 10300 C 10/31/00 1�4�4�4 • ■` 1- 11/16" 4 10470 - 10700 C 10/31/00 /44444441 1- 11/16" 4 10858 - 11050 C 10/31/00 1 4 4 4 4 4 4 4 1 4 1- 11/16" 4 11310 - 11540 C 10/31/00 / 4 4 4 4 4 4 4 / � k � • 4 4 ■ 1- 11/16" 6 11141 - 11166 C 11/22/03 14444444/ �� 11544 `14' 1 1- 11/16" 6 11178- 11203 C 11/22/03 1444 , 1 15 -1/2" LNR 17 #, L -80 FL4S, .0232 bpf, ID = 4.892" 10031' 1 � 4 � 4 Y. 12-3/8" LNR, 4.6 #, L -80 FL4S, .0039 bpf, ID = 1.941" 11581' I3 -1/2" LNR, 9.3#, L -80 NSCT /STL, .0087 bpf, ID = 2.992" H 11916' , DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/12/90 N28E ORIGINAL COMPLETION 05/12/04 KCF /KAK ADPERFS & CORRECTIONS WELL: 05 -25B 08/27/96 D9 RWO - SIDETRACK 08/16/09 PJC DRAWING CORRECTIONS PERMIT No: 8 2001470 10/31/00 ? CTD - SIDETRACK (05 -25B) 08/16/09 ?/ PJC TREE C/O API No: 50- 029 - 2198 -02 05/07/01 CI-VKAK CORRECTIONS SEC 32, T11 N, R15E, 2558' SNL & 173' EWL 09/24/03 JA F/TLP 5-1/2" CSG SHOE RELOCATION 05/11/04 KCF /KAK SET BKR CIBP BP Exploration (Alaska) WELLHEAD = 4 FMC 05-2 5 C S /2" S a) LNR P&A' w CMT) WELL ANGLE > ACTUATOR = BAKER C @ 9904' * *" KB. ELEV = 72.1' Proposed CTD Sidetrack BF. ELEV = KOP = 4000' Max Angle = 98 @ 10169' O 2189' H4 -1/2" CAMCO BAL -O SSSVN, ID = 3.812" I Datum MD = 9645' L Datum TV D = 8800' SS GAS LIFT MANDRELS 110-3/4" CSG, 45.5 #, J -55 BTC, ID = 9.953" H 3490' ST MD TVD DEV TYPE VLV LATCH PORT DATE ' 1 3583 3582 2 KBMG -M DMY BK 0 11/13/00 2 3826 3824 5 KBMG -M SO BK 20 11/13/00 Minimum ID = 1.75" @ 9350' g 3893' H7 -5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.958" I BKR KB LTP 8765' H7 -5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.958" I ' I 8798' H4 -1/2" HES XN NIP, ID = 3.725" 8818' I — 7 -5/8" X 5 -1/2" BKR ZXP PKR w / 6' TIEBACK & HMC LNR HGR, ID = 4.892" 4 -1/2" TBG, 12.6 #, L -80 BTC -M, —I 8820' _I i f , ' ( 8820' H4 -1/2" WLEG, ID = 3.958" I .0152 bpf, ID = 3.958" --I 8840' H5 -1/2" X 3 -1/2" XO, ID = 2.992" I . II I 8874' I--1 -5/8" X 5 -1/2" BKR HY -FLO II LNR HGR, ID = 4.892" I TSGR 9132' I7 -5/8" CSG, 29.7 #, L -80 BTC-M, ID = 6.875" H 9220' I,-4 5-1/2" LNR, 17 #, L -80 FL4S, .0232 bpf, ID = 4.892" h 9272' I / / 5-1/2" MILLOUT WINDOW (05 -25A) 9272' , 30 0 \ 9350' 13 -1/2" KB LTP ID = 1.75" I PERFORATION SUMMARY 9360' !Top of 2 -3/8" liner deployment sleeve I REF LOG: SWS CCLJGR/MCNL ON 10/29/00 ANGLE AT TOP PERF: 74° @ 9926' 13 \ 9550' I I3 -1/2" monobore pkr w hipstock I Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn /Sqz DATE H 9574' H2.70" BKR DEPLOY SLV, ID = 1.969" I 1- 11/16" 6 9926 - 9976 0 05/12/04 $ Oi 1- 11/16" 6 9990 - 10040 0 11/22/03 1- 11/16" 4 10128 - 10300 C 10/31/00 $ / I C 1-11/16" 4 10470 - 10700 C 10/31/00 1- 11/16" 4 10858 - 11050 C 10/31/00 1- 11/16" 4 11310 - 11540 C 10/31/00 ITIZ % 12-3/8" L -80 Liner, Cemented & Perf'd H 11675' 1- 11/16" 6 11141 - 11166 C 11/22/03 ��1 % ' 1- 11/16" 6 11178 - 11203 C 11/22/03 ►1 ` 10060' H 2 -3/8" BKR CIBP (05/11/04)1 ►1111 13-1/2" WHIPSTOCK H 9967' I ► 1 1 1 1 1 1 1 1 �� ►1111 RA TAG 9972' ► O. 0.0: • 111'* 13-1/2" LNR, 9.3 #, L -80 NSCT /STL, .0087 bpf, ID = 2.992" 11916' F, I PBTD I---I 11544' `kV B 12-3/8" LNR, 4.6 #, L -80 FL4S, .0039 bpf, ID = 1.941" H 11581' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 01/12/90 N28E ORIGINAL COMPLETION 05/12/04 KCF /KAK ADPERFS & CORRECTIONS WELL: 05 -25L' 08/27/96 D9 RWO - SIDETRACK 08/16/09 PJC DRAWING CORRECTIONS PERMIT No: 10/31/00 ? CTD - SIDETRACK (05 -25B) 08/16/09 ?/ PJC TREE C/O API No: 50- 029 - 2198 -0` 05/07/01 CH/KAK CORRECTIONS 09/22/09 MSE PROPOSED CTD SIDETRACK SEC 32, T11 N, R15E, 2558' SNL & 173' EWL 09/24/03 JAF/TLP 5 -1/2" CSG SHOE RELOCATION 05/11/04 KCF /KAK SET BKR CIBP BP Exploration (Alaska) • 0 All Measurements are from top of Riser 10/7/2009 L w cn CC 05 -25C top of bag 1 Schlumberger BAG Dowell \ iiiiiiiiiiiiiiiiii . 7. _1 bttm of bag middle of blind /shears Blind /Shears I I TOTs middle of pipes I 2" combi pipe /slips I I middle of flow cross Mud Cross Mud Cross I I I middle of rams 2 3/8" x 3 1/2" VBR's I I TOTs middle of pipe /slips I 2" combi pipe /slips I I [Swab Valve I I Flow Tee Ira 1.1 BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PB DS 05 05 -25 - Slot 25 Plan 3, 5 -25C Plan: Plan 3 BP Coil Tubing Report 0 29 September, 2009 0 bp ERIII BPPASSPORT t BP Coil Tubing Report 0 bp INTEQ Company: North America - ALASKA - BP Local Co-ordinate Rolterence: Well 05-25 - Slot 25 , Project Prudhoe Bay T1/0 Reference: Mean Sea Level Site; . PB DS 05 ,, , , IAD Reirell)tice; .- 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) Well; ' 05-25 - - ' - North Reference: - , ',. . True , Welli)oriy: Plan 3, 5-25C SulireiCaiCUlatiOn Method: Minimum Curvature Design: Plan 3 ., Database; , ' EDM .16 - Anc Prod - WH24P Project Prudhoe Bay, North Slope, UNITED STATES Map System: US State Plane 1927 (Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927 (NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site - P8 DS 05, TR-11-15 Site Position: Northing: 5,947,204.70 ft Latitude: 70° 15' 35.696 N From: Map Easting: 697,428.91 ft Longitude: 148° 24' 14.424 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 1.50 ° Well .. 05-25 - Slot 25, 05-25 Well Position +NI-S 0.00 ft Northing: 5,948,888.67 ft Latitude: 70° 15' 52.300 N +E/-W 0.00 ft Easting: 697,245.85 ft Longitude: 148° 24' 18.465 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 0.00 ft Welibore , -, Plan 3, 5-25C Magnetics ' Model Nein(' ' . Sample Date Declination Dip Aright - Field Strength BGGM2009 9/29/2009 22.61 80.94 57,679 Audit Notes: Version: Phase: PLAN Tie On Depth: 9,528.41 Vertical Section : Depth From (TVD) +Ni-S +WV : Direction -34.00 0.00 0.00 225.00 9/29/2009 6:15:53PM Page 2 COMPASS 2003.16 Build 71 1 � L R ill BPPASSPORT NY011111 BP Coil Tubing Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 05 -25 - Slot 25 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site :. PB DS 05 MD Reference: 50 : 25 7/29/1996 00:00 © 72.13ft (Doyon # 9) Well: ' 05 -25 North Reference: True Welibore: Plan 3, 5 -25C Survey Calculation Method: '. `Minimum Curvature Design: Plan 3 Database: EDM .16 - Anc Prod - WH24P i Survey Tool Program Date 9/29/2009 - - - - - __ - - - - - - - -- - - From To (ft) (ft) Survey (Wellbore) Tool Name Description 40.30 9,261.58 Survey #1 Schlumberger GCT ms (05 -25) GCT -MS Schlumberger GCT multishot 9,280.00 9,528.41 2 : MWD - Standard (05 -25A) MWD MWD - Standard 9,528.41 11,675.00 Plan 3 (Plan 3, 5 -25C) MWD MWD - Standard Planned Survey MD Inc Azi TVDSS N/S E/W Northing Easting DL•g V. Sec TFace (ft) (°) ( (ft) (ft) (ft) (ft) % (ft) ( (ft) ( °) 9,528.41 14.78 209.95 8,691.44 - 714.39 - 2,655.37 5,948,105.00 694,610.26 0.00 2,382.78 0.00 TIP - 5 -25C Fault 1 - 5.25C Fault 2 - 5 -25C Fault 3 - 5 -25C Fault 4 - 5 -25C Fault 5 - 5 -25C Polygon 9,550.00 15.73 198.70 8,712.27 - 719.55 - 2,657.68 5,948,099.78 694,608.08 14.37 2,388.06 -77.69 KOP 9,570.00 17.38 201.25 8,731.44 - 724.90 - 2,659.63 5,948,094.38 694,606.27 9,00 2,393.23 25.00 End of 9 deg / 100 ft DLS 9,600.00 22.95 207.75 8,759.60 - 734.27 - 2,663.98 5,948,084.91 694,602.17 20.00 2,402.92 25.00 4 9,700.00 37.47 236.06 8,846.20 - 768.86 - 2,698.65 5,948,049.42 694,568,42 20.00 2,451.90 57.50 9,800.00 55.20 249.07 8,915.12 - 800.84 - 2,762.89 5,948,015.77 694,505.05 20.00 2,519.93 32.72 40 9,900.00 73.80 257.27 8,958.04 - 826.35 - 2,848.94 5,947,988.02 694,419.69 20.00 2,598.82 23.61 9,985.91 90.00 263.08 8,970.11 - 840.72 - 2,932.44 5,947,971.46 694,336.60 20.00 2,668.03 20.03 1 5 10,000.00 90.00 260.26 8,970.11 - 842.77 - 2,946.39 5,947,969.05 694,322.72 20.00 2,679.34 -90.00 10,100.00 90.00 240.26 8,970.11 - 876.38 - 3,040.03 5,947,933.00 694,229.99 20.00 2,769.32 -90.00 10,117.99 90.00 236.66 8,970.11 - 885.79 - 3,055.36 5,947,923.19 694,214.91 20.00 2,786.81 -90.00 5 -25C Target 1 10,185.91 90.00 223.08 8,970.11 - 929.46 - 3,107.17 5,947,878.18 694,164.28 20.00 2,854.33 -90.00 End of 20 deg / 100 ft DLS 10,200.00 89.88 224.76 8,970.13 - 939.61 - 3,116.94 5,947,867.78 694,154.77 12.00 2,868.42 94.00 10,300.00 89.05 236.73 8,971.06 - 1,002.77 - 3,194.23 5,947,802.62 694,079.17 12.00 2,967.73 94.00 10,400.00 88.27 248.71 8,973.41 - 1,048.50 - 3,282.92 5,947,754.58 693,991.71 12.00 3,062.78 93.89 9/29/2009 6:15:53PM Page 3 COMPASS 2003.16 Build 71 wag BPPASSPORT s nniis BP Coil Tubing Report 0 bp INTEQ Company ' North America - ALASKA BP , , Local Co ordin a te Reference: Well 05 -25 - Slot 25 Project Prudhoe Bay DI R Mean Sea Level Site PB DS 05 MD Reference 50 : 25 7/29/1996 00:00 Q 72.13ft (Doyon # 9) Well 05 -25 x North Referen True Welibor. Plan 3, 5 -25C Survey Calculation Mejhtld: ' " Minimum Curvature Design Pian 3 ; . 4 • Dateb$ed:' EDM .16 - Anc Prod - WH24P Planned Survey MD Inc Azi TVDSS NIS EN Northing ,' Eistinp t �o V Sec . illicit 10,435.91 88.00 253.01 8,974.58 - 1,060.26 - 3,316.82 5,947,741.94 693,958.13 12.00 3,095.07 93.61 0 7 10,500.00 88.74 245.36 8,976.40 - 1,083.01 - 3,376.66 5,947,717.63 693,898.91 12.00 3,153.47 -84.61 10,600.00 89.93 233.41 8,977.57 - 1,133.84 - 3,462.56 5,947,664.57 693,814.38 12.00 3,250.15 -84.39 10,605.91 90.00 232.71 8,977.57 - 1,137.39 - 3,467.28 5,947,660.89 693,809.75 12.00 3,256.00 -84.25 8 10,624.13 90.00 230.52 8,977.57 - 1,148.71 - 3,481.56 5,947,649.21 693,795.77 12.00 3,274.09 -90.00 5 -25C Target 2 10,700.00 90.00 221.42 8,977.57 - 1,201.39 - 3,536.05 5,947,595.13 693,742.68 12.00 3,349.88 -90.00 10,800.00 90.00 209.42 8,977.56 - 1,282.73 - 3,593.90 5,947,512.30 693,686.99 12.00 3,448.30 -90.00 10,900.00 90.00 197.42 8,977.56 - 1,374.33 - 3,633.57 5,947,419.70 693,649.73 12.00 3,541.12 -90.00 10,905.91 90.00 196.71 8,977.56 - 1,379.98 - 3,635.31 5,947,414.01 693,648.15 12.00 3,546.34 -90.00 9 11,000.00 90.00 185.42 8,977.56 - 1,472.17 - 3,653.33 5,947,321.38 693,632.54 12.00 3,624.28 -90.00 11,100.00 90.00 173.42 8,977.56 - 1,571.98 - 3,652.32 5,947,221.63 693,636.17 12.00 3,694.14 -90.00 11,155.91 90.00 166.71 8,977.55 - 1,627.02 - 3,642.68 5,947,166.87 693,647.25 12.00 3,726.24 -90.00 10 11,200.00 90.00 172.00 8,977.55 - 1,670.34 - 3,634.53 5,947,123.78 693,656.53 12.00 3,751.11 90.00 III 11,300.00 90.00 184.00 8,977.55 - 1,770.09 - 3,631.05 5,947,024.16 693,662.62 12.00 3,819.19 90.00 11,355.91 90.00 190.71 8,977.55 - 1,825.51 - 3,638.20 5,946,968.58 693,656.93 12.00 3,863.43 90.00 11 11,400.00 90.00 185.42 8,977.55 - 1,869.15 - 3,644.38 5,946,924.79 693,651.89 12.00 3,898.66 -90.00 11,500.00 90.00 173.42 8,977.55 - 1,968.96 - 3,643.37 5,946,825.05 693,655.52 12.00 3,968.52 -90.00 11,600.00 90.00 161.42 8,977.55 - 2,066.38 - 3,621.63 5,946,728.23 693,679.81 12.00 4,022.03 -90.00 11,605.91 90.00 160.71 8,977.55 - 2,071.97 - 3,619.71 5,946,722.70 693,681.87 12.00 4,024.63 -90.00 12 11,675.00 90.00 169.00 8,977.54 - 2,138.60 - 3,601.67 5,946,656.57 693,701.64 12.00 4,058.99 90.00 TD at 11675.00 - 5 -25C Target 3 9/29/2009 6:15:53PM Page 4 COMPASS 2003.16 Build 71 SRO BPPASSPORT NY6 BP Coil Tubing Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 05 -25 - Slot 25 Project: Prudhoe Bay TVD Reference: Mean Sea Level Site: PB DS 05 MD Reference: 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) Well: 05 -25 North Reference: True Wellbore Plan 3, 5 -25C Survey Calculation Method: Minimum Curvature Design: < Plan 3 Database: EDM .16 - Anc Prod - WH24P Targets Target Name - hit/miss target Dip Angle Dip Dir. TVD +NI-S +E/-W Northing Easting - Shape ( °) ( (ft) (ft) . O (S) ' (ft) Latitude . Longitude 5 -25C Fault 1 0.00 0.00 0.00 - 724.03 - 3,051.04 5,948,085.00 694,215.00 70° 15' 45.173 N 148° 25' 47.250 W - plan misses target center by 8700.44ft at 9528.41ft MD (8691.44 TVD, - 714.39 N, - 2655.37 E) - Polygon Point 1 0.00 - 724.03 - 3,051.04 5,948,085.00 694,215.00 Point 2 0.00 - 855.56 - 2,994.46 5,947,955.00 694,275.00 Point 3 0.00 - 1,016.70 - 2,953.67 5,947,795.00 694,320.00 Point 4 0.00 - 855.56 - 2,994.46 5,947,955.00 694,275.00 5 -25C Fault 2 0.00 0.00 0.00 - 2,075.93 - 3,571.66 5,946,720.00 693,730.00 70° 15' 31.875 N 148° 26' 2.381. W - plan misses target center by 8845.02ft at 9528.41ft MD (8691.44 ND, - 714.39 N, - 2655.37 E) - Polygon Point 1 0.00 - 2,075.93 - 3,571.66 5,946,720.00 693,730.00 Point 2 0.00 - 2,115.00 - 3,607.70 5,946,680.00 693,695.00 Point 3 0.00 - 2,773.02 - 4,075.12 5,946,010.00 693,245.00 Point 4 0.00 - 2,115.00 - 3,607.70 5,946,680.00 693,695.00 5 -25C Target 1 0.00 0.00 8,970.00 - 892.11 - 3,050.44 5,947,917.00 694,220.00 70° 15' 43.520 N 148° 25' 47.230 W P target by plan misses tar et center b 7.99ft at 10117.11ft MD (8970,11 TVD, - 885.30 N, - 3054.62 E) - Point 5 -25C Target 2 0.00 0.00 8,978.00 - 1,145.85 - 3,484.26 5,947,652.00 693,793.00 70° 15' 41.023 N 148° 25' 59.851 W - plan misses target center by 3.96ft at 10624.13ft MD (8977.57 ND, - 1148.71 N, - 3481.56 E) III - Point 5 -25C Target 3 0.00 0.00 8,978.00 - 2,365.06 - 3,609.25 5,946,430.00 693,700.00 70° 15' 29.031 N 148° 26' 3.471 W - plan misses target center by 226.58ft at 11675.00ft MD (8977.54 ND, - 2138.60 N, - 3601.67 E) - Point 5 -25C Fault 3 0.00 0.00 0.00 - 1,116.69 - 3,146.36 5,947,690.00 694,130.00 70° 15' 41.311 N 148 25' 50.019 W - plan misses target center by 8714.59ft at 9528.41ft MD (8691.44 ND, - 714.39 N, - 2655.37 E) - Polygon Point 1 0.00 - 1,116.69 - 3,146.36 5,947,690.00 694,130.00 Point 2 0.00 - 1,438.06 - 3,289.84 5,947,365.00 693,995.00 5 -25C Fault 5 0.00 0.00 0.00 - 2,190.35 - 3,404.59 5,946,610.00 693,900.00 70° 15' 30.751 N 148 25' 57.519 W - plan misses target center by 8847.65ft at 9528.41ft MD (8691.44 ND, - 714.39 N, - 2655.37 E) - Polygon Point 1 0.00 - 2,190.35 - 3,404.59 5,946,610.00 693,900.00 Point 2 0.00 -2,355.00 - 3,038.76 5,946 455.00 694,270.00 9/29/2009 6 :15 :53PM Page 5 COMPASS 2003.16 Build 71 sita ill BPPASSPORT is BP Coil Tubing Report 0 bp INTEQ Company: , North America - ALASKA - BP Local Co - ordinate Reference : Well 05 -25 - Slot 25 Project' ; Prudhoe Bay TVD Reference: •; Mean Sea Level Site . ' PB DS 05 MD Reference: 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) )Nell 05 -25 North True Weilliore Plan 3, 5 -25C ; Survey Calculation Method: Minimum Curvature Design:"" Plan 3 Database EDM 16 Anc Prod - WH24P 5 -25C Polygon 0.00 0.00 0.00 - 719.16 - 3,045.91 5,948,090.00 694,220.00 70° 15' 45.221 N 148° 25' 47.101 W - plan misses target center by 8700.21ft at 9528.41ft MD (8691.44 ND, - 714.39 N, - 2655.37 E) - Polygon Point 1 0.00 - 719.16 - 3,045.91 5,948,090.00 694,220.00 Point2 0.00 - 1,118.84 - 3,636.62 5,947,675.00 693,640.00 Point 3 0.00 - 1,542.67 - 3,687.74 5,947,250.00 693,600.00 III Point 4 0.00 - 2,397.82 - 3,695.15 5,946,395.00 693,615.00 Point 5 0.00 - 2,401.88 - 3,540.19 5,946,395.00 693,770.00 Point 6 0.00 - 1,250.23 - 3,394.96 5,947,550.00 693,885.00 Point 7 0.00 - 946.58 - 2,956.83 5,947,865.00 694,315.00 5 -25C Fault 4 0.00 0.00 0.00 - 1,666.20 - 3,746.00 5,947,125.00 693,545.00 70° 15' 35.904 N 148° 26' 7.459 W - plan misses target center by 8811.16ft at 9528.41ft MD (8691.44 ND, - 714.39 N, - 2655.37 E) - Polygon Point 1 0.00 - 1,666.20 - 3,746.00 5,947,125.00 693,545.00 Point 2 0.00 - 2,093.72 -3,847.24 5,946,695.00 693,455.00 Casing Points Measured Vertical Casing Hole' Depth Depth D Diameter 11 ,675.00 - 8,977.54 2 3/8" 2.375 3.000 III 9/29/2009 6:15:53PM Page 6 COMPASS 2003.16 Build 71 Mil BPPASSPORT Nyij1$ BP Coil Tubing Report bp INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 05 -25 - Slot 25 Project: Prudhoe Bay ND Reference: Mean Sea Level Site: PB DS 05 MD Reference: 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) Well: 05 - 25 North Reference: True WeUbore• Plan 3, 5 -25C Survey Calculation Method: Minimum Curvature D esign : ? Plan 3 Database: EDM .16 - Anc Prod - WH24P Plan Annotations Measured Vertical Local Coordinates Depth Depth +Nl-$ +El•W (ft) Comment 9,528.41 8,691.44 - 714.39 - 2,655.37 TIP 9,550.00 8,712.27 - 719.55 - 2,657.68 KOP 9,570.00 8,731.44 - 724.90 - 2,659.63 End of 9 deg / 100 ft DLS 9,600.00 8,759.60 - 734.27 - 2,663.98 4 9,985.91 8,970.11 - 840.72 - 2,932.44 5 10,185.91 8,970.11 - 929.46 - 3,107.17 End of 20 deg / 100 ft DLS 10,435.91 8,974.58 - 1,060.26 - 3,316.82 7 10,605.91 8,977.57 - 1,137.39 - 3,467.28 8 10,905.91 8,977.56 - 1,379.98 - 3,635.31 9 11,155.91 8,977.55 - 1,627.02 - 3,642.68 10 11,355.91 8,977.55 - 1,825.51 - 3,638.20 11 11,605.91 8,977.55 - 2,071.97 - 3,619.71 12 11,675.00 8,977.54 - 2,138.60 - 3,601.67 TD at 11675.00 I Checked By: Approved By: Date: I III 1 9/29/2009 6:15 :53PM Page 7 COMPASS 2003.16 Build 71 I ' • motteetomftett WELLBORE DETAILS: Plan 3, 5-25C REFERENCE INFMATION Project: Prudhoe Bay eleaneretteis me Fria Site: PB 05 05 Codinate (N/E) Reference. Wa1105.25.510125 True North -or Magnatialeld 500292198803 BAKER Well: 05 Wargh.5767&anT Vertical (TVD) Reference; Mean Sea Level . 0 bp Wellbore: Plan 3, 5-25C 3(05-25/Plan 3, 5-25C) DOAN*. 80,94 Plan: Plan . Dale: 9125112C06 Parent Wellbore. 05-25A Tie on MD: 9528.41 Section (VS) Reference: Slot -25(0.00N 0.00E) Measured Depth Reference: 50 : 25 7/29/1996 00:00 @ 72.1aft (Doyen # 9) Matt 80Gm2C06 Calcolation Method: Minimum Curvature '. . . . ' ...• INTE --------------- -.--- 1 1 1111111111111mimmemlemmal UM el 1: i e 1 .441110, • 7 .1.. 1.. .. - mmIspor.e- .ggpm._-.Ammi_ - 01 cgrau.k5wers.._ .,:- WELL DETAILS: 05-25 LIWPTI,,81110§ • 9 .,,FINI -... IIIIIIII ' ITIIIIIII 'W. IIIIII I III Ground Level. 0.00 -7 ' IIIII :III ' - .: ''', 3 IPOIMP IICIIIIi••••: ON/-S 401-00 Northing Easting Latittude Loegdode Slot rr ... 1 - .,..... I , • „........ 0.00 0.00 5948888.67 697245.85 70° 15' 52.300 N 148°2418.465W 25 m mma luliMa - '40111111111NILMFPFVVrFPW17 - .II • . , 1 i . Ili.Laig.i..-1/14■■■Ilia ' ' ili OWAMM,I4. ' , i SECTION DETAILS ANNOTATIONS Irv. ' .1110 ' r - 1051 111:11.419%•..„ -. Sec MD Inc Azi ssTVD 41/-6 +E/-W DLeg TFace VSec Target Amotaim : IMAIIIINI.pgraiNgF J ' 1 9528.41 14.78 209.95 8691.44 -714.39 -2655.37 0.00 0.00 2382.78 TIP - 1211 Mi ism . m st.' • - gig i glrasu.ri,,,i 2 955050 15.73 198.70 8712.27 -719.55 -2657.68 14.37 -77.69 2388.06 KOP : immommilt, asistAt giimPA ismimind • • 3 957500 17.38 201.25 8731.44 -724.90 -265.63 9.00 25.00 2393.23 Endof9deg/ 100fIDLS ..... .135, g ii Imm rldiresai: 111 Fr::::::6111:4 i 4 960500 22.95 207.75 8759.60 -73427 -2663.98 moo 25.00 2402.92 4 0i; .1110,1111.....11..... MB , UNIOLAWN.DInal :Id imumire... : 902 5 9985.91 263.08 8970.11 -840.72 4332.44 2088 57.50 2668.03 5 0 1.1111 • 1 t i ' i mown% 6 10185.91 90.00 223.08 8970.11 -929.46 -3107.17 20.00 270.00 2854.33 Endof20deg/100ftDLS 1, 1-15t I .. 7 10435.91 88.00 253.01 8974 7, .58 -106026 -3316.82 12.00 94.00 309507 7 ••• mIIIIIII 11111 1111111r, I P 1 8 10605.91 90.00 232.71 8977.57 -113739 -346728 1203 27E39 325E00 8 - 1 ii iapesmill 9 10905.91 9100 196.71 8977.56 -1379.98 -3635.31 1250 270.00 3546.34 9 + - 16 • smee mmmmmmm rte■r mmm te m Nes • ..• 9 111111::::..2i-ii- filillinifi o 90.00 : • 10 11155.91 .00 166.71 8977.55 -162752 -3642.68 12.00 270.00 372624 10 I 11!!!!If: I 11 11355.91 90.00 190.71 8977.55 -182551 -3638.20 12.00 90.00 3863.43 11 0 -1 114 12 11605.91 93.00 160.71 8977.55 -2071.97 -3619.71 12.00 270.00 4024.63 12 13 11675. 90.00 16950 8977.54 -213560 -360187 1250 90.00 4058.99 TD at 11675.00 ,----, In ..2.,-1951 I 11191‘ 00 1tr ,,, 1 ig I IgIII V1111 114104:2E11811 I 0 11111 Mil P 0-2114 0 2Ri mmm .. :Is 1:::: al I • mm I:1141141 2..... . . a n.' fiSM,A2,11 I OM' -221 Mit : 111...7i.lirrcrrn Ume bile ' • Iiii, A -rat' ri - 25' FA pi P • fl a,. - , , -27.4, 11111211111111111...1 1 -4500 -4350 -4200 -4050 -3900 -3750 -3600 -3450 -3300 -3150 - 3000 - 2850 - 2700 - 2550 - 2400 - 2250 - 2100 - 1950 - 1800 West(-)/East(+) (150 ft/in) - - - -' L . . : 1 .. • , I ''''l 1 II 1 1 848/ li IA . ■! promp 1 I ..... 1 1....: 16 .. 1 1 ... 11::::: ....: 1 1 1 1 .:::::: 1 I , . 1 1 : - 4' il 1 : Nome: 1111 11 1 mmmirg mommomEnrommimmi I III 4 .. 4 Or d :,...491 : II 1 1 i mu 1111: nem c 1 ., :::::: 1 oo 8721 7, - II 1 I .6 04merrrmumilm . Kr' : " 8:.. 0 t 1111: 1 I 5 1 1 ; . 1 .111111211 11. 1 11 5 8881 ' -a' w :• - ..:aii.I.: . iolo , , , !:71,11,2■1? 'E C...) 66.ra• V.r.i1:11' 1 8..1 -- ., - , ip 2 ral 1 ALMZZZ' 11111 1 1 11 . , 1 I Iii 1 liglirp 1 I Ir 1116' .1111:0,M 1 11 1 0 I inlin ErIlla.i.L. i E. 912 t 11 11.1,1 1 : 1 I 9 i o e 1 I ..: 1 : eeemulei • 1.4111 92:, 11:111111 Illudilleiluillemilmillut 111 •1111111 I 11: ;11:1.., h 1600 1680 1760 1840 1920 2003 2080 2160 2240 2320 2400 2480 2560 2640 2720 2800 2880 2960 3040 3120 3200 3280 3360 3440 3520 3600 3680 3760 3840 3920 4000 4080 4160 4240 4320 4400 4480 4560 4640 4720 Vertical Section at 225.00° (80 ft/in) A. 1 . 00 . 00) . 00 . , WELLBORE DETAILS: Plan 3, 5-25C REFERENCE INFORMATION �.■ Project Prudhoe Bay /1 Wank f Ste: PB D305 Coordinate(WE) Reference: Wd1 05 -25- 50125, True North _ y. 500292 19 8 803 Vertical (1/0) Reference: 50: 2571291199500:00 D 72.13ft(Doyen 89) ��� C) Wa9bon: Plan 3, 5 250 �� 7 Parent Tie o n AN e: 9528.41 05 Section (VS) Reference: Slot - 25(0.00N, 0 00E) bp Plan: Plan 3 (05.251Plan 3, 5 ' a a Tle on AND: Measured Dap h Reference. 50 25 78291996 00.00 D 72.13( (Doyen b 9) Calculation MetIme Minimum Curvature Curvature Q 285 1 d7 • i gui . - 05133/05 -33A 1 I I i ! a7s . . s7 8900 1-- dfl -Tr f . C .__.. ... ., S- - o E 05 . _. ..__ ._. i ___. __. - __. .. ... . _ 305- - .. o . Q .- .. - . N12 ; xvDD 1 34/05- 4A 122 7 .. - 1 : I .. _ .. ; � � 8 .... _ • -950 i I i 115- J4A'lki 0-1A -1045 1 03I) .O. 'I7 t i -- ' 4 4 0 - 1140. .. - ... -. . _ I_. ._. 25N5.25I3 .. , �' �! ��� . - 1235: :. 1 � - _.._.. _... _. .51, r- - - -i .__..... - - -.. _.... /�: __.. -133 _...I ... �.- � - -- I _._ ... ... _ ' 1425 i > { o.a -1520 �, e� ( ` � I _ I k 1 q . .. ° (615 1711 '_ E _ .. I -- — t - -1 . ( - -. � .___. - -. ___ ..... __ .. __ .... r ° '1 -1x05 " - -_ i + _. -... .. _ . l ... _ -. :. ... ... _ . _ .. _. _. -. CA li - 1900- -. _ ) 1 -__ __I I I _ \__ - i } -1995 1.. cr i _. . - -.., 09.2'llLi_'kl -... ___ .. _. t - -:_ .. . _. • \ I \ . / ,.. y0511 I hill, -2185 . - ___ .. 1 3 , 5 - 2 N ( -2541 _ __ _ _.. : - _ _ - -. ._.. _ .. f - ... - - 22.1 _. _ - . ..._.... _ ____. -.I ! ..... _ -._. .....____ _._ .... ... . _ _. . -- -- -.. --- '---- -- -- -- -2375 -_. - -._.. ._ - -_- I. I ::65 ._._-- l --. _._. I _,. -... __. ____ ._. - ...._ __ .. _. _ , E I _ I i � ! .__.. , 1 I I I I -2755 --- -- - _ - -.__ -_. __ _ - . - _ -1 ____- - -_.. _ _- __ _ + I , - _ -...j -._. 02- 63/i2 -03A . .\ 25 7/29/1996 00:00 @ '2.13 (DoY # 9 ) .. - -5035 -4940 -4845 -4750 -4655 -4560 -4465 -4370 -4275 -0180 -4085 -3990 -3895 -3800 -3705 -3610 -3515 -3420 -3325 -3230 -3135 -3140 -2945 -2850 -2755 -2660 -2565 -2470 -2375 -2280 -2185 -2090 -1995 -1900 -1805 -1710 -1615 -1520 West(- )/East( +) (95 ft/in) Project: Prudhoe Bay ANTI - COLLISION SETTINGS COMPANY DETAILS: North America - ALASKA - BP 14111 0 Site: OS 05 by Well 05-25 Interpolation Method: MD, interval: 25.00 NORTH AMERICA BAKER Depth Range From: 9528.41 To 11675.00 ALASKA HUGHES Results Limited By: Centre Distance: 1363.69 Wellbore: Plan 3, 5 -25C Reference: Plan: Plan 3(05- 25/Plan 3, 5 -25C) Calculation Method: Minimum Curvature Plan: Plan 3 (05.25 /Plan 3, 5 -25C) Error System: ISCWSA INTEQ Scan Method: Tray. Cylinder North Error Surface: EllipticalConic Warning Method: Rules Based WELLDETAILS: 05-25 Ground Level: 0.00 *N /S *Er -W Northing Eating WNW. Longitude Slot 0.00 0.00 5948885.67 697245.55 70 52.300N 14r 24'10.465 W 25 . 0 SECTION OETALS Sec MD Inc AO WO •N/S °E/-W 13Le9 TFO VSec Target -- - 1 192 1 9528.41 14.78 209.95 8763.57 - 714.39 - 2655.37 0.00 0.00 2382.78 2 9550.00 15.73 198.70 8784.40 - 719.55 - 2657.68 14.37 -77.69 2388.06 3 9570.00 17.38 201.25 8803.57 - 724.90 - 2659.63 9.00 25.00 2393.23 30 330 1176 4 9600.00 22.95 207.75 8831.73 - 734.27 - 2663.98 20.00 25.00 2402.92 5 9985.91 90.00 263.08 9042.24 - 840.72 - 2932.44 20.00 57.50 2668.03 - _. _.. 8 10185.91 9000 223.08 9042.24 - 929.46 - 3107.17 20.00 270.00 285433 7 10435.91 88.00 253.01 9046.71 - 1060.26 - 3316.82 12.00 94.00 3095.07 160 8 10805.91 90.00 232.71 9049.70 - 1137.39 - 3467.28 12.00 275.39 3256.00 i 05. 25/05 - 9 10905.91 90.00 196.71 9049.69 - 1379.98 - 3635.31 12.00 270.00 3546.34 10 11156.91 90.00 166.71 9049.68 - 1627.02 - 3642.68 12.00 270.00 3726.24 144 11 11355.91 90.00 190.71 9049,68 - 1825.51 - 3638.20 12.00 90.00 3863,43 05- 25/05 -256 -- , / 12 11605.91 90,00 160.77 9049.68 - 2071.97 -3619.71 12.00 270.00 4024.63 13 11875.00 90.00 169.00 9049.67 - 2138.60 - 3601.67 12.00 90.00 4058.99 • 128 •'75 0 'S •. 99' (It. '• • 60 80 (el SURVEY PROGRAM Date: 2009- 09- 29T00:00:00 Validated: Yes Version: Depth From Depth To Survey /Plan Tool 40.30 9261.58 Survey 91 Schlumberger GCT �fQb96) 9280.00 9528.41 2 : MW 0 - Standard (05 -25A) M W O 9528.41 11675.00 Plan 3 (Plan 3, 5 -25C) M W D 271 � 90 LEGEND w 05 -25, 05 -25, 05 -25 V3 05 -25, 05 -25A, 05 -25A V3 f 05-25, 05 -25B, 05 -25B V5 - 05-04A, 05-04A, 05-04A V5 • 05-04, 05-04, A ° 05-22, OS -22A, , 05- 05- 22AV10 05-33, 05 -33A, 05 -33AV5 240 10 • • 90 120 • 05 -33, 0533, 0533 V2 � • 0534, 0534, 0534 V3 02 -03, 02 -03B, 02 -03B V8 .�...mmanva.•, 104 02 -03, 02 -03A, 02-03A V1 - 02-03, 02 -03,02 -03 V2 _ r • Plan 3 160 041 210 150 • _ 0 05- 25/05 -25A 180 Travelling CylinderAzimuth (TFO +AZI) [ vs Centre to Centre Separation [16 ft/in] 1,4'.■ BAKER HUGHES INTEQ North America - ALASKA - BP Prudhoe Bay PBDS05 05 -25 Plan 3, 5 -25C Plan 3 Travelling Cylinder Report 29 September, 2009 � bp . , BA KI� ■ BP PASSPORT 1111101111S Travelling C ylinder Report 0 bP INTEQ Company - North America - ALASKA - BP Local Co-ordinate Reference: , Well 05 -25 - Slot 25 Project: Prudhoe Bay TVD Reference: 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) ReferencerShe: PB DS 05 MD Reference: = 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) Site; Error t 0.00ft North Reference: -True Reference Welt ; 05-25 Survey Calculation Method - Minimum Curvature Well Error 0.00ft Output errors are at 1.00 sigma Reference itelibore Plan 3, 5 -25C Database; EDM .16 - Anc Prod - WH24P Reference Design Plan 3 OffsetTVD Reference ,, 'Offset Datum Reference Plan 3 Filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 9,528.41 to 11,675.00ft Scan Method: Tray. Cylinder North Results Limited by: Maximum center- center distance of 1,363.69ft Error Surface: Elliptical Conic Survey,Tool Program Date 912912009. From To (ft) (tl) Survey (Welibore) Tool Name Description 40.30 9,261.58 Survey #1 Schlumberger GCT ms (05 -25) GCT -MS Schlumberger GCT multishot 9,280.00 9,528.41 2 : MWD - Standard (05 -25A) MWD MWD - Standard 9,528.41 11,675.00 Plan 3 (Plan 3, 5 -25C) MWD MWD - Standard Casing Points; ' Measured Vertical v Casing : ; ;. Hole Depttf DepttF Diameter ° ' Diameter ( (ft) . Nam , (In) . (In) 11,675.00 9,049.67 2 3/8" 2.375 3.000 1 CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 9/29/2009 4:29 :03PM Page 2 of 30 COMPASS 2003.16 Build 71 11111111 • BPPASSPORT • 0 BAICER MYiNtf Travelling Cylinder Report bP INTEQ Company: North America - ALASKA - BP Local Co- ordinate Reference: Well 05 -25 - Slot 25 Project Prudhoe Bay TVD Reference: 50 : 25 7/29/1996 00:00 © 72.13ft (Doyon # 9) Reference Site: PB DS 05 MD Reference: ' 50 : 25 7/29/1996 00:00 @ 72.13ft (Doyon # 9) Site Error. 0.00ft North Reference: True Reference Well: 05 -25 Survey Calculation Method: Minimum Curvature Wall Error: 0.00ft Output errors are at 1.00 sigma Reference Welibon) Plan 3, 5 -25C Database: EDM .16 - Anc Prod - WH24P Reference Design: Plan 3 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 DS 02 02 -03 - 02 -03 - 02 -03 11,475.00 11,372.00 1,044.85 773.30 282.82 Pass - Major Risk 02 -03 - 02 -03A - 02 -03A 11,575.00 11,525.00 1,135.82 812.75 323.06 Pass - Major Risk 02-03 - 02 -03B - 02-03B 11,050.00 11,000.00 1,169.53 639.22 530.43 Pass - Major Risk 02 -03 - 02 -03B - Plan #3 11,075.00 10,900.00 1,223.90 661.85 563.69 Pass - Major Risk PB DS 05 05 -04 - 05 -04 - 05 -04 9,725.00 9,945.00 999.51 499.19 577.37 Pass - Major Risk 05 -04A - 05 -04A - 05 -04A 9,566.81 9,500.00 1,086.78 447.82 736.88 Pass - Major Risk 05 -07 - 05 -07 - 05 -07 Out of range 05 -09A - 05 -09A - 05 -09A Out of range 05 -10 - 05 -10 - 05 -10 Out of range 05 -10 - 05 -10A - 05 -10A Out of range 05 -10 - 05 -10B - 05 -10B Out of range 05 -10 - 05- 10BPB1 - 05- 10BPB1 Out of range 05 -10 - 05 -10C - 05 -10C Out of range 05 -10 - 05 -10C - Plan #4 Out of range 05 -11 - 05 -11 - 05 -11 Out of range 05 -11 - 05-11 A - 05 -11 A Out of range 05 -20 - 05 -20 - 05 -20 Out of range 05 -20 - 05-20A - 05 -20A Out of range 05 -20 - 05-20B - 05 -20B Out of range 05 -20 - 05 -20B - 05 -20B wp06 shallow WO Out of range 05 -20 - 05 -20PB1 - 05 -20PB1 Out of range 05 -22 - 05 -22 - 05 -22 Out of range 05 -22 - 05 -22A - 05 -22A 11,650.00 11,610.00 812.47 142.25 675.08 Pass - Major Risk 05 -22 - 05 -22A - Plan #3 11,325.00 11,678.84 790.63 180.07 614.68 Pass - Major Risk 05 -22 - 05 -22B - 05 -22B Out of range 05 -22 - 05 -22B - Plan #6 Out of range 05 -25 - 05 -25 - 05 -25 9,532.85 9,550.00 65.97 10.11 56.16 Pass - Major Risk 05 -25 - 05 -25A - 05-25A 9,550.00 9,550.00 0.00 0.48 -0.47 FAIL - Major Risk 05 -25 - 05 -25A - DEAP Defin 9,669.22 9,675.00 24.68 210.34 - 147.90 FAIL - Major Risk 05 -25 - 05 -25B - 05 -25B 9,550.00 9,550.00 0.00 0.48 -0.47 FAIL - Major Risk 05 -25 - 05 -25B - Plan #2 10,598.59 10,800.00 25.49 38.29 -4.37 FAIL - Major Risk 05 -33 - 05 -33 - 05 -33 10,650.00 10,050.00 796.33 186.13 615.25 Pass - Major Risk 05 -33 - 05 -33A - 05 -33A 9,575.00 11,900.00 716.88 202.50 514.24 Pass - Major Risk 05 -33 - 05 -33A - Plan #3 10,015.34 11,450.00 679.83 201.17 478.78 Pass - Major Risk 05 -34 - 05 -34A - 05 -34A 9,600.00 11,025.00 746.74 125.13 649.35 Pass - Major Risk 05 -35 - 05 -35 - 05 -35 Out of range 05 -35 - 05 -35A - 05 -35A Out of range CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 9/29/2009 4:29:03PM Page 3 of 30 COMPASS 2003.16 Build 71 BAKIR ■ BPPASSPORT HUGH T ravelling Cylinder Report 0 bP INTEQ Company: North America - ALASKA - BP Lo Co- ordinate Reference: Well 05-25 - Slot 25 Project Prudhoe Bay TYD Reference: 50:25 7/29/1996 00:00 72.13ft (Doyon # 9) Reference Site: , PB DS 05 MD R efer nce: ' 50 : 25 7/29/1996 00 © 72 ( D oy on # 9 Site: Error: 0.00ft North Reference: , T rue Reference Well: 05 -25 Su Calculation Method. : ..` Minimum Curvature : Welt Error: " , _ O.00ft Output errors ar. at . ':1 sigma Refersnce'Wellbore Plan 3, 5-25 Dat a EDM .16 - Anc Prod - WH24P Reference Design: Plan 3 OffsetiryD Reference '. Offset Datum Offset Design PB DS 02 - 02-03 - 02 -03 - 02 -03 Offset Sits Error: , `0.001 Sow, Program: 100 -CS- GYRO -MS . Risia miyrwd: Major Risk , Ofhut Wsf Erna:;. 0.001E Rehrenso Offset SIn Maj ' Measured '_vartiar. , Muesured ' vsrti at Ramona" , Offset Toolhes * Offset WOWS ' "Casing -" Centre to " „ Noe* - IYloarabi.. i • miaming o • ., o ".: ot:anc. , o w.uon ra tro t+a nn Rai. ha c� : ra na a . 11,075.00 9,049.69 10,650.00 8,712.42 27.09 276.05 -107.58 - 1,608.69 - 4,974.07 0.22 1,361.36 672.26 707.29 Pass - Major Risk 11,075.00 9,049.69 10,675.00 8,730.36 27.09 277.24 - 106.94 - 1,622.41 - 4,963.36 0.22 1,347.42 675.27 688.80 Pass - Major Risk 11,075.00 9,049.69 10,700.00 8,748.27 27.09 278.44 - 106.29 - 1,636.16 - 4,952.62 0.22 1,333.78 678.27 670.64 Pass - Major Risk 11,075.00 9,049.69 10,725.00 8,766.16 27.09 279.64 - 105.62 - 1,649.92 - 4,941.86 0.22 1,320.47 681.29 652.83 Pass - Major Risk 11,084.93 9,049.69 10,750.00 8,784.06 27.11 280.84 - 106.13 - 1,663.67 - 4,931.12 0.22 1,307.37 696.09 623.66 Pass - Major Risk 11,088.91 9,049.69 10,775.00 8,801.97 27.12 282.04 - 105.92 - 1,677.41 - 4,920.38 0.22 1,294.63 703.83 601.82 Pass - MajorRisk 11,100.00 9,049.69 10,800.00 8,819.90 27.15 283.24 - 106.54 - 1,691.14 - 4,909.66 0.22 1,282.27 719.74 572.32 Pass - Major Risk 11,100.00 9,049.69 10,825.00 8,837.85 27.15 284.44 - 105.81 - 1,704.87 - 4,898.95 0.22 1,270.14 722.85 555.72 Pass - Major Risk 11,100.00 9,049.69 10,850.00 8,855.83 27.15 285.63 - 105.07 - 1,718.59 - 4,888.30 0.22 1,258.43 725.96 539.62 Pass - MajorRisk 11,100.00 9,049.69 10,875.00 8,873.84 27.15 286.82 - 104.31 - 1,732.31 - 4,877.70 0.22 1,247.16 729.07 524.02 Pass - Major Risk 11,109.42 9,049.69 10,900.00 8,891.88 27.17 288.01 - 104.67 - 1,746.03 - 4,867.15 0.22 1,236.21 743.00 498.07 Pass - Major Risk 11,400.00 9,049.68 10,925.00 8,909.91 28.09 289.22 -90.76 - 1,759.78 - 4,856.62 0.22 1,224.26 616.89 610.94 Pass - MajorRisk 11,400.00 9,049.68 10,950.00 8,927.87 28.09 290.43 -89.97 - 1,773.61 - 4,846.09 0.22 1,210.84 619.60 594.00 Pass - Major Risk 11,400.00 9,049.68 10,975.00 8,945.78 28.09 291.63 -89.17 - 1,787.51 - 4,835.54 0.22 1,197.78 622.32 577.51 Pass - Major Risk 11,412.69 9,049.68 11,000.00 8,963.61 28.15 292.84 -89.88 - 1,801.49 - 4,824.98 0.22 1,184.87 642.93 543.37. Pass - Major Risk 11,425.00 9,049.68 11,025.00 8,981.40 28.22 294.09 -90.52 - 1,815.48 - 4,814.37 0.22 1,172.46 662.84 510.53 Pass - MajorRisk 11,425.00 9,049.68 11,050.00 8,999.15. 28.22 295.33 -89.68 - 1,829.44 - 4,803.63 0.22 1,160.12 665.75 494.86 Pass - Major Risk 11,425.00 9,049.68 11,075.00 9,016.86 28.22 296.58 -88.81 - 1,843.35 - 4,792.78 0.22 1,148.08 668.66 479.61 Pass - Major Risk 11,425.00 9,049.68 11,100.00 9,034.54 28.22 297.83 -87.94 - 1,857.23 - 4,781.82 0.22 1,136.35 671.56 464.81 Pass - Major Risk 11,425.00 9,049.68 11,125.00 9,052.20 28.22 299.08 -87.04 - 1,871.13 - 4,770.88 0.22 1,125.07 674.52 450.56 Pass - Major Risk 11,436.42 9,049.68 11,150.00 9,069.87 28.27 300.34 -87.50 - 1,885.15 - 4,760.10 0.22 1,114.21 693.28 421.09 Pass - MajorRisk 11,440.63 9,049.68 11,175.00 9,087.56 28.29 301.59 -87.07 - 1,899.27 - 4,749.48 0.22 1,104.00 702.05 402.44 Pass - MajorRisk 11,450.00 9,049.68 11,200.00 9,105.25 28.33 302.85 -87.24 - 1,913.50 - 4,739.03 0.22 1,094.40 717.79 377.64 Pass - MajorRisk 11,450.00 9,049.68 11,225.00 9,122.96 28.33 304.10 -86.28 - 1,927.84 - 4,728.73 0.22 1,085.33 720.94 366.15 Pass - MajorRisk 11,450.00 9,049.68 11,250.00 9,140.68 28.33 305.34 -85.30 - 1,942.28 - 4,718.61 0.22 1,076.94 724.09 355.55 Pass - MajorRisk 11,450.00 9,049.68 11,275.00 9,158.41 28.33 306.58 -84.31 - 1,956.81 - 4,708.65 0.22 1,069.24 727.28 345.81 Pass - Major Risk 11,462.99 9,049.68 11,300.00 9,176.16 28.39 307.82 -84.86 - 1,971.44 - 4,698.84 0.22 1,061.96 747.99 319.40 Pass - MajorRisk 11,475.00 9,049.68 11,325.00 9,193.91 28.44 309.05 -85.28 - 1,986.15 - 4,689.18 0.22 1,055.50 767.05 295.77 Pass - MajorRisk 11,475.00 9,049.68 11,350.00 9,211.68 28.44 310.29 -84.25 - 2,000.94 - 4,679.66 0.22 1,049.52 770.37 288.45 Pass - Major Risk 11,475.00 9,049.68 11,372.00 9,227.32 28.44 311.38 -83.34 - 2,014.02 - 4,671.41 0.22 1,044.85 773.30 282.82 Pass - Major Risk, CC, ES, CC - Min centre to center distance or covergent point, SF - min separation factor, ES - min ellipse separation 9/29/2009 4:29:03PM Page 4 of 30 COMPASS 2003.16 Build 71 Alaska Department of Natural1sources Land Administration System • Page 1 of,' 1 Alaska Mapper Land Records /Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28326 Printable Case File Summary See Township, Range, Section and Acreage? New Search CO) Yes i_1) No LAS Menu 1 Case Abstract 1 Case Detail 1 Land Abstract File: ADL 28326 lap Search for Status Plat Updates As of 10/13/2009 Customer: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER - ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 09/14/1965 Total Acres: 2491.000 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: 015E Section: 29 Section Acres: 640 Search Plats Meridian: U Township: 011N Range: 015E Section: 30 Section Acres: 604 Meridian: U Township: O11N Range: 015E Section: 31 Section Acres: 607 Meridian: U Township: O11N Range: 015E Section: 32 Section Acres: 640 Legal Description 05 -28 -1965 ** *SALE NOTICE LEGAL DESCRIPTION * ** C14- 156T11N- RI5E- UM29,30,31,32 2491.00 U- 3- 7 End of Case Summary Last updated on 10/13/2009. http://thmalaska.gov/projects/las/Case Summary. cfm ?FileType =AD L &FileNumber= 283 ... 10/13/2009 • TRANSMITTAL LETTER CHECKLIST WELL NAME 7'Z4/ O, $% PTD# , 7499/0.7-1/ /Development Service Exploratory Stratigraphic Test Non- Conventional Well FIELD: 0,44' //Oa" 2r,49/ POOL: ,W4'%' Z .4Y ©/6 Circle 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(0, all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non - Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1 / 11 /2008 WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 Well Name: PRUDHOE BAY UNIT 05 -25B Program DEV Well bore seg PTD #: 2091240 Company BP EXPLORATION (ALASKA) INC Initial Class/Type DEV / PEND GeoArea 890 Unit 1.1650 - On /Off Shore On Annular Disposal Administration 1 Permit_fee attached - NA 2 Lease number appropriate - Yes 3 Unique well name and number Yes 4 Well located in a defined pool - Yes i5 Well located proper distance from drilling unit boundary Yes - - - 6 Well located proper distance from other wells Yes - 7 Sufficient acreage available in drilling unit Yes 2560 acres. 8 lf_deviated, is wellbore plat included Yes 9 Operator only affected party Yes 10 Operator has appropriate bond in force Yes Blanket Bond # 6194193. 11 Permit can be issued without conservation order Yes Appr Date 12 Permit can be issued without administrative approval - Yes ACS 10/13/2009 13 Can permit be approved before 15 -day wait - - Yes IP 14 Well located within area and strata authorized by Injection Order # (put)O# in comments) (For NA 15 All wells within 1 /4mile area of review identified (For service well only) NA 16 Pre - produced injector: duration of pre- production less than 3 months (For service well only) NA 17 Nonconven. gas conforms to AS31.05.030(j,1.A),(j.2.A -D) - NA 18 Conductor string provided NA _ Conductor set in 5 -25B Engineering 19 Surface casing protects all known USDWs NA Surface casing set in 5 -25B 20 CMT vol adequate to circulate on conductor & surf csg NA Surface casing cement back in 5 -25B 21 CMT vol adequate to tie -in long string to surf csg NA Production casing set in 5 -25B. 22 CMT will cover all known productive horizons Yes 2 3/8" linerto be cemented back to Liner Packer. 23 Casing designs adequate for C, T, B & permafrost Yes 24 Adequate. tankage or reserve pit Yes _ - - - Rig equipped with steel pits. All waste to approved disposal wells. 25 If a re- drill, has a 10-403 for abandonment been approved Yes 309 -350 26 Adequate wellbore separation proposed - - - Yes Proximity analysis performed. Closest segment is P & A portion of D$5-25B.and paths diverge. 27 If diverter required, does it meet regulations NA BOP stack-in place. Appr Date 28 Drilling fluid program schematic & equip list adequate Yes Maximum formation pressure is 3182 psi (7 ppg)....Will drill with 8.6 mud (Geo Vis) GLS 10/13/2009 29 BOPEs,_do they meet regulation Yes 30 BOPE press rating appropriate; test to (put psig in comments) Yes MASP = 2302 psi... will test BOP to 3500 psi • 31 Choke manifold complies w /API RP -53 (May 84) Yes 32 Work will occur without operation shutdown Yes 33 Is presence of H2S gas probable Yes H2S present on DS 5... rig has sensors and alarms. 34 Mechanical condition of wells within AOR verified (For service well only) NA 35 Permit . can be issued w/o hydrogen sulfide measures No Max level H2S on DS -05 was.580ppm on well 05 -09. Geology '36 Data presented on potential overpressure zones NA_ Appr Date 37 Seismic analysis of shallow gas zones NA ACS 10/13/2009 38 Seabed condition survey (if off - shore) NA - ,39 Contact name /phone for weekly progress reports [exploratory only] - - - NA Geologic Engineering ' Date: Date Date Commissioner: o ssioner: . �J•ner / 10 1) /0l6—o9 • • Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process • but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. 411 111 tapescan.txt * * ** REEL HEADER * * ** MWD 10/08/18 BHI 01 LIS Customer Format Tape * * ** TAPE HEADER * * ** MWD 10/05/27 3182181 01 2.375" CTK * ** LIS COMMENT RECORD * ** 1111111 Remark File Version 1.000 Extract File: ldwg.las version Information VERS. 1.20: CWLS log ASCII Standard - VERSION 1.20 WRAP. NO: One line per frame well Information Block #MNEM.UNIT Data Type Information STRT.FT 9230.5000: Starting Depth STOP.FT 11929.0000: Ending Depth STEP.FT 0.5000: Level Spacing NULL. - 999.2500: Absent value COMP. COMPANY: BP Exploration (Alaska), Inc. WELL. WELL: 05 -25C FLD . FIELD: Prudhoe Bay Unit LOC . LOCATION: 70 deg 15' 52.300 "N 148 deg 24' 18.424 "w CNTY. COUNTY: North Slope Borough STAT. STATE: Alaska SRVC. SERVICE COMPANY: Baker Hughes INTEQ TOOL. TOOL NAME & TYPE: 2.375" CTK DATE. LOG DATE: 27 May 2010 API . API NUMBER: 500292198803 Parameter Information Block #MNEM.UNIT Value Description SECT. 24 Section TOWN.N T11N Township RANG. R15E Range PDAT. MSL Permanent Datum EPD .F 0 Elevation Of Perm. Datum LMF . KB Log Measured from FAPD.F 72.13 Feet Above Perm. Datum DMF . KB Drilling Measured From EKB .F 0 Elevation of Kelly Bushing EDF .F 72.13 Elevation of Derrick Floor EGL .F 0 Elevation of Ground Level Page 1 00 lag 9-4)03 4 • tapescan.txt CASE.F N/A Casing Depth 051 . DIRECTIONAL Other Services Line 1 -Remarks (1) All depths are Measured Depths (MD) unless otherwise noted. (2) All depths are Bit Depths unless otherwise noted. (3) All True vertical Depths (TVDSS) are subsea corrected. (4) All Formation Evaluation data is realtime data. (5) Baker Hughes INTEQ utilized CoilTrak downhole tools and the Advantage surface system to log this well.. (6) Tools ran in the string included Casing Collar Locator, an Electrical Disconnect and Circulating Sub, a Drilling Performance Sub (Inner and Outer Downhole Pressure, vibration and Downhole weight on Bit), a Directional and Gamma Sub, and a Hydraulic orienting sub with a Near Bit Inclination Sensor. (7) Data presented here is final and has been depth adjusted to a Primary Depth Control (PDC) log provided by schlumberger GR CNL dated 02 Jun 2010 per Jennifer Flight with BP Exploration (Alaska), Inc. (8) The sidetrack was drilled from 05 -25A through a milled window in a 3 1/2 inch liner. Top of window 9551 ft.MD (8713.2 ft.TVDSS) Bottom of window 9556 ft.MD (8718.5 ft.TVDSS) (9) Tied to 05 -25A at 9528 feet MD (8691.4 feet TVDSS). (10) The interval from 11897 ft to 11929 ft MD (8975.8 ft. to 8976.2 ft. TVDSS) was not logged due to sensor to bit offset at well TD. MNEMONICS: GRAX -> Gamma Ray [MWD] (MWD -API units) ROP AVG - Rate of Penetration, feet /hour RACLX - Resistivity (AT)(LS)400kHz- Compensated Borehole Corrected (OHMM) RACHX - Resistivity (AT)(LS)2MHz- Compensated Borehole Corrected (OHMM) RPCLX - Resistivity (PD)(LS)400kHz- Compensated Borehole Corrected (OHMM) RPCHX - Resistivity (PD)(LS)2MHz- Compensated Borehole Corrected (OHMM) TVDSS - True Vertical Depth (Subsea) CURVE SHIFT DATA BASELINE, MEASURED, DISPLACEMENT 9246.62, 9231.02, ! - 15.5986 9252.98, 9236.77, ! - 16.2148 9255.85, 9238.41, ! - 17.4463 9259.96, 9242.92, ! - 17.0361 9262.83, 9245.18, ! - 17.6523 9265.09, 9247.23, ! - 17.8564 9266.53, 9248.88, ! - 17.6523 9268.58, 9250.93, ! - 17.6523 9273.71, 9255.65, ! - 18.0625 9275.56, 9257.7, ! - 17.8574 9280.08, 9262.63, ! - 17.4473 9284.38, 9266.73, ! - 17.6514 9290.34, 9272.89, ! - 17.4473 9292.6, 9275.35, ! - 17.2422 9310.02, 9292.16, ! - 17.8574 9317.2, 9299.34, ! - 17.8574 9336.08, 9318.64, ! - 17.4473 9340.19, 9322.54, ! - 17.6514 9345.94, 9328.08, ! - 17.8564 9353.3, 9335.65, ! - 17.6523 9362.33, 9345.09, ! - 17.2422 9376.59, 9358.93, ! - 17.6523 9379.87, 9362.63, ! - 17.2412 9382.74, 9365.09, ! - 17.6523 9386.03, 9368.17, . - 17.8574 9390.34, 9373.1, ! - 17.2422 Page 2 . • ill tapescan.txt 9395.88, 9378.02, ! - 17.8564 9407.14, 9389.7, ! - 17.4463 9410.84, 9393.39, ! - 17.4473 9412.89, 9395.65, ! - 17.2412 9415.35, 9398.11, ! - 17.2412 9423.97, 9406.32, ! - 17.6514 9434.27, 9415.59, ! - 18.6787 9444.12, 9426.68, ! - 17.4463 9461.16, 9443.3, ! - 17.8564 9466.7, 9448.23, ! - 18.4727 9471.42, 9453.15, ! - 18.2676 9550.43, 9531.96, ! - 18.4727 9554.94, 9536.47, ! - 18.4727 9557.76, 9540.31, ! - 17.4463 9564.33, 9545.85, ! - 18.4736 9572.16, 9556.97, ! - 15.1885 9582.63, 9566.62, ! - 16.0098 9590.84, 9573.19, ! - 17.6523 9596.17, 9577.7, ! - 18.4727 9603.36, 9585.91, ! - 17.4463 9624.12, 9605.85, ! - 18.2676 9627.82, 9609.55, ! - 18.2676 9635.21, 9616.73, ! - 18.4727 9636.64, 9618.38, ! - 18.2676 9639.11, 9621.25, ! - 17.8574 9641.36, 9623.3, ! - 18.0615 9648.79, 9630.11, ! - 18.6787 9653.92, 9635.65, ! - 18.2676 9662.13, 9643.65, ! - 18.4727 9663.77, 9646.53, ! - 17.2412 9668.49, 9650.84, ! - 17.6514 9671.98, 9653.71, ! - 18.2676 9673.01, 9654.94, ! - 18.0625 9679.75, 9663.13, ! - 16.626 9687.55, 9669.49, ! - 18.0625 9689.4, 9671.75, ! - 17.6514 9691.45, 9673.6, ! - 17.8574 9695.97, 9678.11, ! - 17.8574 9700.08, 9684.27, ! - 15.8047 9703.77, 9686.94, ! - 16.8311 9706.44, 9688.58, ! - 17.8564 9711.36, 9693.3, ! - 18.0615 9714.44, 9696.59, ! - 17.8564 9719.78, 9701.1, ! - 18.6777 9723.88, 9705.62, ! - 18.2676 9732.83, 9714.77, ! - 18.0625 9741.45, 9724.42, ! - 17.0361 9745.35, 9727.09, ! - 18.2676 9748.23, 9730.58, ! - 17.6514 9751.1, 9733.45, ! - 17.6523 9754.59, 9736.94, ! - 17.6523 9757.87, 9739.4, ! - 18.4727 9761.4, 9743.75, ! - 17.6514 9772.89, 9755.65, ! - 17.2412 9776.59, 9758.93, ! - 17.6523 9780.9, 9764.27, ! - 16.625 9782.74, 9765.5, ! - 17.2412 9786.23, 9768.17, ! - 18.0625 9788.29, 9771.66, ! - 16.626 9792.42, 9774.56, ! - 17.8574 9795.7, 9777.43, . - 18.2676 9797.34, 9779.28, ! - 18.0615 9813.91, 9796.06, ! - 17.8564 Page 3 . • III tapescan.txt 9829.51, 9812.27, ! - 17.2412 9831.97, 9814.12, ! - 17.8574 9842.42, 9823.74, ! - 18.6777 9855.76, 9837.9, ! - 17.8574 9869.31, 9851.24, ! - 18.0625 9880.89, 9862.83, ! - 18.0625 9884.59, 9867.55, ! - 17.0361 9886.43, 9868.78, ! - 17.6514 9889.92, 9871.65, ! - 18.2676 9891.56, 9873.3, ! - 18.2676 9899.36, 9880.89, ! - 18.4727 9902.65, 9885.2, ! - 17.4463 9907.78, 9890.95, ! - 16.8311 9911.06, 9893, ! - 18.0625 9915.29, 9898.46, ! - 16.8311 9918.78, 9901.33, ! - 17.4473 9922.68, 9905.03, ! - 17.6514 9926.79, 9909.13, ! - 17.6523 9930.51, 9912.66, ! - 17.8574 9950.25, 9933.42, ! - 16.8311 9954.77, 9937.73, ! - 17.0361 9986.17, 9966.67, ! - 19.499 10000.7, 9981.04, ! - 19.7041 10008.1, 9988.63, ! - 19.499 10017.4, 9999.1, ! - 18.2676 10032.8, 10014.7, ! - 18.0625 10085.8, 10069.1, ! - 16.626 10095.8, 10077.8, ! - 18.0625 10102.2, 10083.5, ! - 18.6777 10123.3, 10105, ! - 18.2676 10130.3, 10112, ! - 18.2676 10139.5, 10119.4, ! - 20.1152 10142.8, 10125.1, ! - 17.6523 10146.9, 10127.4, ! - 19.499 10150.8, 10132.1, ! - 18.6787 10154.3, 10135.2, ! - 19.0889 10159.6, 10141.4, ! - 18.2676 10161.9, 10143.8, ! - 18.0615 10174.5, 10155.4, ! - 19.0889 10197.3, 10176.6, ! - 20.7305 10239, 10219.9, ! - 19.0889 10267.8, 10250.2, ! - 17.6523 10290.6, 10274.8, ! - 15.8047 10300.4, 10283.4, ! - 17.0361 10303.1, 10286.7, ! - 16.4209 10306, 10289, ! - 17.0361 10323.1, 10305.5, ! - 17.6514 10441.4, 10422.1, ! - 19.2939 10451.9, 10431.7, ! - 20.1143 10467.3, 10444.9, ! - 22.373 10470.5, 10448.6, ! - 21.9619 10476.5, 10456.2, ! - 20.3203 10479, 10458.4, ! - 20.5254 10515.3, 10495, ! - 20.3193 10526.6, 10506.9, ! - 19.7041 10537.5, 10517.2, ! - 20.3203 10545.1, 10521.7, ! - 23.3984 10552.7, 10531.8, ! - 20.9355 10555.8, 10534.3, ! - 21.5518 10571.6, 10551.1, ! - 20.5254 10580, 10559.1, ! - 20.9365 10589.9, 10568.5, ! - 21.3457 10606.5, 10587.6, ! - 18.8838 Page 4 . • tapescan.txt 10611, 10592.5, ! - 18.4727 10713.1, 10694.8, ! - 18.2676 10720, 10702.8, ! - 17.2412 10729.8, 10711.7, ! - 18.0625 10776.9, 10756, ! - 20.9355 10792.8, 10771.9, ! - 20.9355 10857.4, 10836.9, ! - 20.5254 10868.7, 10849, ! - 19.7041 10874.5, 10853.3, ! - 21.1416 10879.8, 10856.8, ! - 22.9893 10885.8, 10864.4, ! - 21.3467 10904, 10880.2, ! - 23.8096 10911, 10887.4, ! - 23.6045 10913.1, 10889.7, ! - 23.3994 10914.9, 10894.6, ! - 20.3203 10918, 10897.1, ! - 20.9365 10920.3, 10899.5, ! - 20.7305 10923.1, 10903.4, ! - 19.7041 10927, 10907.5, ! - 19.499 10935.5, 10915.3, ! - 20.1152 10937.1, 10917.8, ! - 19.2939 10942.1, 10922.4, ! - 19.7051 10946.8, 10926.7, ! - 20.1152 10950.1, 10930, ! - 20.1152 10953.6, 10932.8, ! - 20.7314 10957.3, 10937.5, ! - 19.7041 10960.7, 10942.1, ! - 18.6777 10967.3, 10948.2, ! - 19.0889 10983.5, 10963.2, ! - 20.3203 10989.7, 10967.7, ! - 21.9619 10994, 10973.2, ! - 20.7305 11000.3, 10980.8, ! - 19.499 11014.5, 10995.6, ! - 18.8838 11019.6, 11001.3, ! - 18.2676 11029.9, 11012.6, ! - 17.2412 11037.5, 11020, ! - 17.4463 11041.8, 11025.6, ! - 16.2148 11049, 11031.9, ! - 17.0361 11053.3, 11035.2, ! - 18.0625 11056.8, 11038.7, ! - 18.0625 11099.2, 11084.5, ! - 14.7783 11101.1, 11086.3, ! - 14.7773 11111.6, 11097, ! - 14.5723 11121.2, 11104.8, ! - 16.4209 11129, 11109.1, ! - 19.9102 11136.4, 11117.3, ! - 19.0889 11148.2, 11127.6, ! - 20.5254 11149.8, 11129.1, ! - 20.7314 11157.4, 11132.8, ! - 24.6299 11161.3, 11136.9, ! - 24.4258 11163.8, 11138.9, ! - 24.8359 11211.9, 11198, ! - 13.957 11221.8, 11205.3, ! - 16.4209 11229, 11212.3, ! - 16.625 11259, 11242.8, ! - 16.2148 11286.3, 11270.3, ! - 16.0098 11290, 11273.1, ! - 16.8311 11291.6, 11275.2, ! - 16.4199 11294.3, 11277.9, ! - 16.4209 11297.2, 11280.5, ! - 16.625 11306.9, 11290.7, ! - 16.2148 11376.5, 11356.2, ! - 20.3203 11379.5, 11360.2, ! - 19.2939 Page 5 • • tapescan.txt 11385.4, 11365.7, ! - 19.7041 11389.3, 11370.9, ! - 18.4727 11398, 11377, ! - 20.9355 11402.9, 11382.4, ! - 20.5254 11406, 11385.8, ! - 20.1152 11409.3, 11390.6, ! - 18.6787 11433.7, 11414.8, ! - 18.8838 11444.5, 11423.4, ! - 21.1416 11453.6, 11432.6, ! - 20.9365 11458.1, 11435.7, ! - 22.373 11460.5, 11438.6, ! - 21.9619 11462, 11440, ! - 21.9619 11463.8, 11442.5, ! - 21.3467 11466.9, 11445.3, ! - 21.5518 11472.1, 11453, ! - 19.0879 11477, 11457.5, ! - 19.499 11488.1, 11468.6, ! - 19.499 11497.2, 11477.1, ! - 20.1152 11504.2, 11482.4, ! - 21.7568 11513.8, 11492.7, ! - 21.1416 11523.9, 11502.4, ! - 21.5518 11536.4, 11515.9, ! - 20.5254 11543.2, 11522.7, ! - 20.5254 11544.8, 11526.4, ! - 18.4736 11551.6, 11529.9, ! - 21.7568 11554.3, 11533.8, ! - 20.5254 11567.1, 11545.4, ! - 21.7568 11578.2, 11558.7, ! - 19.499 11588.5, 11568.6, ! - 19.9092 11771.2, 11754.2, ! - 17.0361 11780.2, 11766.5, ! - 13.752 11788.8, 11775.1, ! - 13.7529 11796.6, 11783.1, ! - 13.5469 11811.7, 11797.4, ! - 14.3682 11826.5, 11813.6, ! - 12.9316 11837.8, 11825.9, ! - 11.9053 11840.2, 11828.1, ! - 12.1104 11846.2, 11832.5, ! - 13.752 11867.1, 11856.2, ! - 10.8789 11878, 11865.7, ! - 12.3154 EOZ END ! BASE CURVE: GROH, OFFSET CURVE: GRAX Tape subfile: 1 329 records... Minimum record length: 10 bytes Maximum record length: 132 bytes * * ** FILE HEADER * * ** MWD .001 1024 * ** LIS COMMENT RECORD * ** 1111111 111111111111 Remark File Version 1.000 Page 6 i tapescan.txt The data presented here is final and has been depth adjusted to a Primary Depth control (PDC) log provided by schlumberger GR CNL dated 02 Jun 2010 per Jennifer Flight with BP Exploration (Alaska), Inc. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) optical Log Depth Scale Units: Feet Frame spacing: 0.500000 Frame spacing units: [F ] Number of frames per record is: 36 One depth per frame (value= 0) Datum specification Block Sub -type is: 1 FRAME SPACE = 0.500 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool Code Samples Units Size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 150 Tape File start Depth = 9230.500000 Tape File End Depth = 11916.500000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet * * ** FILE TRAILER * * ** Tape subfile: 2 163 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * ** FILE HEADER * * ** MWD .002 1024 Page 7 • • tapescan.txt * ** LIS COMMENT RECORD * ** Remark File version 1.000 This file contains the raw - unedited field MWD data. * FORMAT RECORD (TYPE# 64) Data record type is: 0 Datum Frame Size is: 28 bytes Logging direction is down (value= 255) Optical Log Depth Scale Units: Feet Frame spacing: 0.250000 Frame spacing units: [F ] Number of frames per record is: 36 one depth per frame (value= 0) Datum specification Block sub -type is: 1 FRAME SPACE = 0.250 * F ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool code samples units Size Length 1 GR MWD 68 1 AAPI 4 4 2 ROP MWD 68 1 F /HR 4 4 3 RAD MWD 68 1 OHMM 4 4 4 RAS MWD 68 1 OHMM 4 4 5 RPD MWD 68 1 OHMM 4 4 6 RPS MWD 68 1 OHMM 4 4 24 Total Data Records: 299 Tape File Start Depth = 9245.750000 Tape File End Depth = 11929.000000 Tape File Level spacing = 0.250000 Tape File Depth units = feet * * ** FILE TRAILER * * ** Tape subfile: 3 312 records... Minimum record length: 54 bytes Maximum record length: 4124 bytes * * ** TAPE TRAILER * * ** MWD 10/05/27 3182181 01 Page 8 • • tapescan.txt * * ** REEL TRAILER * * ** MWD 10/08/18 BHI 01 Tape Subfile: 4 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes 0 Tape Subfile 1 is type: LIS 0 Tape Subfile 2 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 9230.5000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 9231.0000 43.3773 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 11916.5000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 9230.500000 Tape File End Depth = 11916.500000 Tape File Level Spacing = 0.500000 Tape File Depth Units = feet 0 Tape Subfile 3 is type: LIS DEPTH GR ROP RAD RAS RPD RPS 9245.7500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 9246.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 11929.0000 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 - 999.2500 Tape File Start Depth = 9245.750000 Tape File End Depth = 11929.000000 Tape File Level Spacing = 0.250000 Page • tapescan.txt Tape File Depth units = feet 0 Tape Subfile 4 is type: LIS Page 10
