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HomeMy WebLinkAbout208-1537. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU R-41 Mill CIBP Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 208-153 50-029-23399-00-00 14820 Conductor Surface Intermediate Production Liner 8743 125 3874 10467 4488 14734 20" 9-5/8" 7" 4-1/2" 8735 30 - 155 29 - 3903 26 - 10493 10332 - 14820 30 - 155 29 - 3394 26 - 8626 8502 - 8743 14713, 14728 4760 5410 7500 None 6870 7240 8430 10512 - 14700 4-1/2" 12.6# 13Cr80 24 - 10339 8640 - 8731 Structural 4-1/2" Baker S3 Packer 10263 8447 Torin Roschinger Operations Manager Aras Worthington aras.worthington@hilcorp.com 907-564-4763 PRUDHOE BAY, PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028257, 0028279 24 - 8507 N/A N/A 24 Well Not Online 1103 28 1087 0 194 300 N/A 13b. Pools active after work:PRUDHOE OIL No SSSV Installed 10263, 8447 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 8:45 am, Jul 24, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.07.23 13:38:20 - 08'00' Torin Roschinger (4662) ACTIVITY DATE SUMMARY 7/15/2024 TFS U4 (Assist coil) Travel to location and rig up *Job continues to 7-16-24* 7/15/2024 LRS #1 1.75" Coil TUbing .156" WT - Job Scope = Mill CIBP Road from S pad to R pad. MIRU. ***Job continued 7/16/24*** 7/16/2024 LRS #1 1.75" Coil Tubing .156 WT - Job Scope = Mill CIBP ***job continued from 7/15/24*** MU YJ milling assembly w/ 3.71" burn shoe. RIH. Tag 10566 ctmd. Start milling CIBP. 4-1/2 hrs lost WHP but just stacking wgt w/ motor work. 5-1/2" hrs POOH. BD YJ burnshoe (excursion ring wedged inside) & Venturi (small amount of metal). MU YJ 3.71" 5 blade rev clutch junk mill. RIH & Tag CIBP @ 10566 ctmd. mill for 9 mins and pushing plug in hole. Push CIBP to 14,714' ctmd. POOH. ***Job Continued 7/17/24*** 7/16/2024 *Job continues from 7-15-24* TFS U4 (Assist Coil) Pumped 3 bbls of 50/50 followed by 100 bbls of KCL followed by 4 bbls of 50/50 down the backside to kill well for coil. Pumped 1223 bbls of KCL down the coil to assist coil as directed. Pumped 42 bbls of DSL down the backside to freeze protect well. Pumped 35 bbls of KCL down the coil to empty out uprights *Job continues to 7-17-24* 7/17/2024 *Job continues from 7-16-24* TFS U4 (Assist coil) Rig down. Load 50/50. Standby for coil. Well left in control of coil upon departure 7/17/2024 LRS #1 1.75" Coil Tubing .156 WT - Job Scope = Mill CIBP ***job continued from 7/16/24*** Finish POOH. Well freeze protected 38 bbls diesel. RDMO. ***Job Complete*** Daily Report of Well Operations PBU R-41 RECEIVED • STATE OF ALASKA c ALASKA OIL AND GAS CONSERVATION COMM( N i-;i R 0 $ 2016 REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed /�/'1GCC Abandon 0 Plug Perforations I I Fracture Stimulate 0 Pull Tubing 0 Operations shutdown/- 0 Suspend ❑ Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program 0 ElCf Plug for Redrill 0 Perforate New Pool 0 Repair Well Re-enter Susp Well 0 Other:9vci59_, L., � 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 208-153 3. Address: P.O.Box 196612 Anchorage, Development p Exploratory 0 AK 99519-6612 Stratigraphic ❑ Service ❑ 6. API Number: 50-029-23399-00-00 7. Property Designation(Lease Number): ADL 0028257 8. Well Name and Number: PBU R-41 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 14820 feet Plugs measured feet true vertical 8743 feet Junk measured feet Effective Depth: measured 14728 feet Packer measured 10263 feet true vertical 8734 feet Packer true vertical 8447.15 feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 159 20"91.5#A-53 30-189 30-189 1533 515 Surface 3874 9-5/8"47#L-80 29-3903 29-3394 6870 4760 Intermediate 10467 7"26#L-80 26-10493 26-8626 7240 5410 Production Liner 4488 4-1/2"12.6#13Cr8 10332-14820 8502-8743 8430 7500 Perforation Depth: Measured depth: 13475-13570 feet 13610-13650 feet 13690-13840 feet 13890-13910 feet 14050-14140 feet 14180-14700 feet True vertical depth: 8754-8766 feet feet 8769-8773 feet 8776-8772 feet 8764-8760 feet 8737-8724 feet 8718-8731 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 24-10339 24-8507 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): 13475-13570' ,SCANNED APR Cj 1 2016 016 Treatment descriptions including volumes used and final pressure: 2 j 110 Bbls 15.8 ppg LARC Cement,95 1%KCL,27 Slick 1%KCL w/SafeLube,150 Bbls Diesel w/776,49 Bbls 60/40 Methanol/Water,20 Bbls PowerVis,4000 psi. 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 85 1687 5740 1872 271 Subsequent to operation: 145 1309 5009 1694 239 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations RI Exploratory 0 Development p Service 0 Stratigraphic ❑ Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL ❑ Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature N� C Phone +1 907 564 4424 Date 3/31/16 Form 10-404 Revised 5/2015 V`T L 4 f!Z /d I � O 1 9016 RBDMS Vv APR � 1 L Submit Original Only • • Packers and SSV's Attachment PBU R-41 SW Name Type MD TVD Depscription R-41 TBG PACKER 10263.2 8447.15 4-1/2" Baker S-3 Perm Packer R-41 PACKER 10344.2 8511.53 5" Baker ZXP Top Packer • • Q ¢ a) U)Uo 0 0 Q Y I To g a) 'a I) = c Q o O m �. v on II co @ 0 o) m 0 c o e m (o cn 4) O a) a) c to c -a L d y 0- L as O 'c a) N Zi) a) ` c) (;1 O 0 2> a) _ a) O O co LLrn Q Q a > :c O c (n p)CO 73 O CO 3 Q C a) > N .N � • c r O M M ° i co LL N 0- c Z N N O Qo _, m c C ? 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CL / m E\ CN 7 ® E R / 6 / % \ i 9,1 / o \ § 2 ° $ \ Iii 2 f 2 / \ \ / \ § 2 # -Q E E 0_2 -c c m w E- H _a e I co m - k 2 E 0 S co a \ /$ O-/ -/ / _ / £ f \ / / ° © c / 2 R 5 a a O \ % $ 2 e k / G e f % = e .E [ E < E < G I / 5 E 0 % " CO 5 ± - \ / / \ k / : - ® - \ / E / { 6 \ \ n U \ \ as (0 o ° U 3 S o ƒ / / \ = O ± U % CO 2 $ y \ 5 7 } E k - ._ ® t 2 = 2 R @ # . .c + e n ( = R a = 4fo0og / Im4masat ƒ m \ ma CD cok \ $ RN- o I I - # rx N- ct & R o ez° - » 2 o m U y 2 * o .2 o Ti) U@ O - G < t A —I A _I m U A 0 2 % t _1 m o ± Y .- m o I m E 0 f / / 7 CO (.0 \ \ \ % / / / ce \ w 20 / & o / ƒ ƒ CO \ r-- Inoam & � & Nr 10 N @ @ A A A TREE= CNV • --- VVELL A'D= FMC SAFETY NOTES:WELL ANGLE>70*@ 10810' /ICTLUATOR= BAKB2 C k-41 ***4-1/2"CHROME TUBING** KB.B_EV= 47' • BF.ELEV= 21' I KOP= 300' '= =H 503' F-9-5/8"TA IVPORT COLLA R Max Angle= 100'@ 1401T Datum MD= 15852' Datum ND= 8800'SS ' ' 2172' -4-112"FES X NP,D=3.813' 9-518"CSG,47#,L-80 HYD 563 -{ 3785' I--X X XO TO L-80 BTC 9-5/8"CSG,47#,L-80 BTC,D=8.681" 3903' GAS LFT M1A1`DRB S ST M) TVD DEV TYPE VLV LATCH PORT DATE 4 4207 3631 38 KGB-2 DOME BK 12 01/07/10 3 7084 5912 38 KGB-2 DOME BK 16 01/07/10 7"CSG,26#,L-80 TCI XO TO L-80 BTC-M -I 5413' X X 2 9080 7502 37 KGB-2 DOME BK 16 01/07/10 1 10197 8394 37 KGB-2 SO BK 28 01/07/10 10232' -a 1/2•FEsxrte,D=3.813- Minimum ID = 3.725" @ 10326' I 4-1/2" XN NIPPLE 10263' -j7"X4-1/2"BKR S-3 PKR,ID 3.880" ' I 10296' -4-1/2'FES X NP,D=3.813" 10326' -14-1/2"FES XN NP.D=3.725" I 10332' -I7"X 5"LTPw/TIEBACK SLV,D=5.250" 4-1/2"TBG,12.6#,13CR-80 VAM TOP, - 10339' / \ 6 10339' --14-1/2"WLEG,D=3.958" .0152 bpf,D=3.958" ---t )1c.s.,..... 10355' H 7'X 5"HMC LM HGR,D=4.70" 10364' H5-X 4-112"XO,D=3.958- 7"CSG,26#,L-80 BTC-M,.0383 bpf,D=6.276' H I 10493' I---' 13445'-13585' —3.70"MILLED LNR(03/16116) PERFORATION SUVMARY REF LOG: ANGLE AT TOP PERF:85'@ 13610' k�=� 14728' —FISH CSP&RETAINER Note:Refer to Production DB for historical pert data a`. ��, DEBRIS PUSH OH(03/16/16) SIZE SPF INTERVAL Opn/Sqz DATE '",,W... v. -km' .s 14734' -1 PBTD 2.88 6 13475-13570 S 01/11/09 \N.‘. 2.88 6 13610-13650 0 01/11/09 -' 2.88 6 13690-13840 0 01/11/09 2.88 6 13890-13910 0 01/11/09 al`�= 2.88 6 14050-14140 0 01/11/09 ``"` 2.88 6 14180-14700 0 01/11/09 � - 4-1/2"Ltd 12.6#,13CR-80 VAM TOP,.0152 bpf,D=3.958" H 14820' DATE REV BY COMMENTS DATE REV BY CONVENTS PRUJHOE BAY UST 01/11/09 MIES ORIGINAL COMPLETION WELL: R-41 02/19/09 7/PJC DRLG DRAFT CORRECTIONS PERMIT No: 2081530 03/03/09 M YJMD DRLG DRAFT CORRECT/DNS AR No: 50-029-23399-00 03/04/09 KJB/SV GLV CJO(02/25/09) SEC 32,T12N,R13E,600'FSL&790'RAIL 02/03/10 JLJ/PJC GLV C/O(01/07/10) 04/07/16 JLS/JMD MILL LIC CMT/FISH(03/16/16) BP Exploration(Alaska) 2i \s 3 410 BAKER t PRINT DISTRIBUTION LIST HUGHESPlease sign and return one copy of this transmittal form to: COMPANY BP Exploration Alaska Inc. BP Exploration(Alaska) Inc. Petrotechnical Data Center, LR2-1 DATA LOGGED WELL NAME R-41 900 E. Benson Blvd. K BENDEiZBENDE R Anchorage,Alaska 99508 FIELD Prudhoe Bay Unit to acknowledge receipt of this data. COUNTY North Slope Borough LOG TYPE RPM:PNC3D BHI DISTRICT Alaska LOG DATE December 3,2015 AUTHORIZED BY Paul Canizares EMAIL Paul.Canizares@bakerhughes.com TODAYS DATE December 21,2015 Revision STATUS Final Replacement: No Details: Rev. Requested by: COMPANY FIELD/ FINAL CD/DVD FINAL PRELIM LOGS (las,dlis,PDF,META, SURVEY REPORT ADDRESS(FEDEX WILL NOT DELIVER TO P.O.BOX) LOGS CGM,Final Surveys) (Compass) PERSON ATTENTION #OF PRINTS #OF rKIN I - #OF COPIESn -#OF COPIES #OF COPIES 1 BP North Slope. 0 1 0 0 0 EOA,PBOC,PRB-20(Office 109) D&C Wells Project Aids Agatha Rutka&Barbara Glassmaker 900 E.Benson Blvd. SCANNED���® Anchorage,Alaska 99508 � 2 ConocoPhillips Alaska Inc. 0 1 I 1 0 0 Attn:Ricky Elgarico ATO 3-344 700 G Street Anchorage,AK 99510 3 ExxonMobil,Alaska 0 1 1 0 0 Attn:Lynda M.Yaskell and/or Lisa Boggs 3201 C Street,Suite 505 Anchorage,AK 99503 4 State of Alaska -AOGCC 0 1 1 0 0 Attn:Makana Bender 333 W.7th Ave.Suite 100 Anchorage,Alaska 99501 5 DNR-Division of Oil&Gas *** 0 1 1 0 0 Attn:James Hyun 550 West 7th Avenue,Suite 802 Anchorage,Alaska 99501 ***Stamp"confidential'on all material deliver to DNR 6 BP Exploration(Alaska)Inc. 0 1 1 0 0 Petrotechnical Data Center,LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 Attn:David Itter TOTALS FOR THIS PAGE: 0 6 5 TOTALS FOR ALL PAGES: 0 6 5 0 0 Ima a Pro'ect Well History File Cove~age 9 1 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. aQ~ - ~~.3 Well History File Identifier Organizing (done) R CAN Color Items: ^ Greyscale Items: ^ Poor Quality Originals: ^ Other: NOTES: SY; Maria Project Proofing SY; Maria _ Scanning Preparation gY; Maria _ Production Scanning Date: o a„~~~e~~ iuumuuiuiii OVERSIZED (Scannable) ^ Maps: ^ Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) ^ Logs of various kinds: ^ Other:: ,s, P iiiimimumii ry ~1 P _~ x 30 = ~ + ~ =TOTAL PAGES (Count does not include cover sheet) Date: ~ /s/ IIIIIIIIIIIIII IIIII Stage 1 Page Count from Scanned File: ~ (Count does include cov sheet) tuber in Scannin Pre aration: _~YES NO Page Count Matches Nu 9 p BY: Maria Date: 3~~j ~ ~ /s/ Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO r BY: Maria Date: /s/ cannin is com lete at this point unless rescanning is required. II I II II II I II II I I III S g p III IIIIIIIIIII IIIII ReScanned gY: Maria Date: /s/ Qualit Checked ~IIII~IIIIIIII~III) Comments about this file: y wo-sided IIIII'lllllllllllll DIGITAL DATA ^ Di kettes, No. Other, No/Type: G J ND• Date: 10/6/2005 Well History File Cover Page.doc DATA SUBMITTAL COMPLIANCE REPORT 2/2512010 Permit to Drill 2081530 Well Name/No. PRUDHOE BAY UNIT R-41 Operator BP EXPLORATION (ALASKIy INC API No. 50-029-23399-00-00 MD 14820 TVD 8743 Completion Date 1/9/2009 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION ~.-- Mud Log No Samples No Directional Survey es DATA INFORMATION Types Electric or Other Logs Run: DIR / GR /RES, DIR / GR /RES / PWD, DIR / GR /RES (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH / Ty Med/Frmt Number Name Scale Media No Start Stop CH Received Comments D C Asc ____ Directional Survey _ 0 563 Open 1/16/2009 ~tpt Directional Survey 0 563 Open 1/16!2009 ` ~D C Lis 17728~(nduction/Resistivity 270 14819 Open 3/20/2009 LIS Veri, GR, ROP, FET, RPX, RPS, RPM, RPD, i~ Induction/Resistivity 25 Blu 270 14772 Open 3/20/2009 DRHO, NPHI, TRPM MD Vision Service 4-Jan- 2009 ~g Induction/Resistivity 25 Blu 270 14772 Open 3/20/2009 TVD Vision Service 4-Jan- ~D C Las 18081~e Notes 9957 10824 Case 6/3/2009 2009 Jewlery Log, CCL, GR Well Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments ADDITIONAL INFORMATION Well Cored? Y /~ Daily History Received? ~~ ~~ Chips Received? ~PF- Formation Tops ?r:-~" Analysis '~'71~'-' Received? •i ~I DATA SUBMITTAL COMPLIANCE REPORT 2125/2010 Permit to Drill 2081530 Well Name/No. PRUDHOE BAY UNIT R-41 Operator BP EXPLORATION (ALASI(A) INC MD 14820 TVD 8743 Completion Date 1/9/2009 Completion Status 1-OIL Current Status 1-OIL Comments: API No. 50-029-23399-00-00 UIC N _~•~-ro _~ S`~~- ~..-Cr~O Compliance Reviewed By: _ Date: i •i 11 • BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 July 10, 2009 Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB R-Pad Dear Mr. Maunder, Anehar~p~ ; aog-is3 Z' R-'~~ Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB R- Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing_external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD 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, Torin Roschinger, at 659-5102. Sincerely, Anna Dube, P.E. BPXA, Well Integrity Coordinator JUL 1 ~aA~ Alaska Oil G~ Cony. Co~tmission ~p • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) R-pad n~f.. Revised 7/10/2009 Well Name API # PTD # Initial top of cement Vol. of cement um ed Final top of cement Cement top off date Corrosion inhibitor Corrosion inhibitor/ sealant date ft bbls ft na al R-02 50029203540000 1781000 1.25 NA 1.25 NA 6.8 5/11/2009 R-03A 50029203640100 1981710 1.5 NA 1.5 NA 7.65 5/13/2009 R-04 50029203740000 1790380 2.25 NA 2.25 NA 13.6 5/13/2009 R-05A 50029203800100 1972500 0 NA 0 NA 3 5/13/2009 R-06A 50029203880100 1981270 0.75 NA 0.75 NA 13.17 5/13/2009 R-07A 50029205230100 2000100 2.25 NA 2.25 NA 43 5/11/2009 R-08 50029205480000 1810010 0.25 NA 0.25 NA 1.7 6/12/2009 R-09A 50029206090100 1982330 3.25 NA 3.25 NA 17.85 5/14/2009 R-10 50029206180000 1810930 2 NA 2 NA 14.5 6/22/2009 R-11A 50029208930100 1982060 0.25 NA 0.25 NA 1.7 6/11/2009 R-12 50029209210000 1830350 0.25 NA 0.25 NA 1.7 6/12/2009 R-13 50029209290000 1830440 24 NA 24 NA 96.9 6/23/2009 R-14 50029209090100 2021560 0 NA 0 NA 0.04 5/18/2009 R-15A 50029209170100 1990360 0 NA 0 NA 1.7 5/18/2009 R-16 50029206860000 1811740 15 NA 15 NA 107.5 5/17/2009 R-17A 50029206770100 1981380 4 NA 4 NA 27.2 5/15/2009 R-18B 50029206330200 1981190 6.75 NA 6.75 NA 48.87 5/15/2009 R-19A 50029206370100 1971710 8.5 NA 8.5 NA 67.48 5/17/2009 R-21 50029209970000 1831200 0.25 NA 0.25 NA 3.4 6/13/2009 R-22 50029210050000 1831280 0.5 NA 0.5 NA 4.3 6/12/2009 R-23A 50029210130100 1972020 2.25 NA 2.25 NA 16.2 6/12/2009 R-24 50029212320000 1842160 9.5 NA 9.5 NA 37.4 6/12/2009 R-25A 50029222780100 1972300 0 NA 0 NA 1.7 5/18/2009 R-26A 50029215470000 1860370 0.75 NA 0.75 NA 4.3 6/22/2009 R-27 50029215570000 1860510 0.25 NA 0.25 NA 1.7 6/11/2009 R-29 50029222750100 1971070 20 3.9 1.25 NA 11.05 5/14/2009 R-31 A 50029222770100 2021500 1.5 NA 1.5 NA 8.5 5/11 /2009 R-32A 50029224130100 1980090 0.75 NA 0.75 NA 8.5 6/11/2009 R-34 50029224080000 1931530 0 NA 0 NA 2.5 5/18/2009 R-35 50029224240000 1931810 0.25 NA 0.25 NA 1.7 5/11/2009 R-36 50029225220000 1941440 3.25 NA 3.25 NA 44.2 5/14/2009 R-39A 50029225260100 1960840 2 NA 2 NA 22.1 5/11/2009 R-40 50029229260000 1982000 1.5 NA 1.5 NA 6.8 5/14/2009 R-41 50029233990000 2081530 3.25 NA 3.25 NA 22.1 5/12/2009 ! . BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 June 26, 2009 ~,1 ~3 ~ ~1 R~ Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7~' Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of R-Pad Dear Mr. Maunder, ~~~ ~~~~:~ JUi_ A ~ 200 ~l~s~~ ail ~ Gas Cons. ~a `ssia~ ~nchor~ Enclosed please find a spreadsheet with a list of wells from R-Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, 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, Anna Dube, at 659-5102. Sincerely, Torin Roschinger 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) n~•e R-pad 6/25/2009 Well Name PTD # Initial top of cement Vol. of cement um ed Final top of cement Cement top off date Corrosion inhibitor Corrosion inhibitor/ sealant date ft bbls ft na al R-02 1781000 1.25 NA 1.25 NA 6.8 5/11/2009 R-03A 1981710 1.5 NA 1.5 NA 7.65 5/13/2009 R-04 1790380 2.25 NA 2.25 NA 13.6 5/13/2009 R-05A 1972500 0 NA 0 NA 3 5/13/2009 R-06A 1981270 0.75 NA 0.75 NA 13.17 5/13/2009 R-07A 2000100 2.25 NA 2.25 NA 43 5/11/2009 R-OS 1810010 0.25 NA 0.25 NA 1.7 6/12/2009 R-09A 1982330 3.25 NA 3.25 NA 17.85 5/14/2009 R-10 1810930 2 NA 2 NA 14.5 6/22/2009 R-11A 1982060 0.25 NA 0.25 NA 1.7 6/11/2009 R-12 1830350 0.25 NA 0.25 NA 1.7 6/12/2009 R-13 1830440 3.75 NA 3.75 NA 76.5 6/22/2009 R-14 2021560 0 NA 0 NA 0.04 5/18/2009 R-15A 1990360 0 NA 0 NA 1.7 5/18/2009 R-16 1811740 15 NA 15 NA 107.5 5/17/2009 R-17A 1981380 4 NA 4 NA 27.2 5/15/2009 R-18B 1981190 6.75 NA 6.75 NA 48.87 5/15/2009 R-19A 1971710 8.5 NA 8.5 NA 67.48 5/17/2009 R-21 1831200 0.25 NA 0.25 NA 3.4 6/13/2009 R-22 1831280 0.5 NA 0.5 NA 4.3 6/12/2009 R-23A 1972020 2.25 NA 2.25 NA 16.2 6/12/2009 R-24 1842160 9.5 NA 9.5 NA 37.4 6/12/2009 R-25A 1972300 0 NA 0 NA 1.7 5/18/2009 R-26A 1860370 0.75 NA 0.75 NA 4.3 6/22/2009 R-27 1860510 0.25 NA 0.25 NA 1.7 6/11/2009 R-29 1971070 20 3.9 1.25 NA 11.05 5/14/2009 R-31 A 2021500 1.5 NA 1.5 NA 8.5 5/11 /2009 R-32A 1980090 0.75 NA 0.75 NA 8.5 6/11/2009 R-34 1931530 0 NA 0 NA 2.5 5/18/2009 R-35 1931810 0.25 NA 0.25 NA 1.7 5/11/2009 R-36 1941440 3.25 NA 3.25 NA 44.2 5/14/2009 R-39A 1960840 2 NA 2 NA 22.1 5/11 /2009 R-40 1982000 1.5 NA 1.5 NA 6.8 5/14/2009 R-41 2081530 3.25 NA 3.25 NA 22.1 5/12/2009 WELL LUG TR,4N5'M/T~TT 4L me~ PaoAcrivE D'u-gwosric SertvicFS, (tvc. To: AOGCC Christine Mahnken 333 W. 7th Ave Suite 100 Anchorage, Alaska 99501 (907] 793-1225 RE : Cased Hole/Open Hole/Mechanical Logs and/or Tubing Inspection(Caliper/ MTV The technical data fisted below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the following BP Exploration jAlaska), Inc. Petratechnical Data Center Attn: Joe LastuHca LR2-1 900 Benson Bh-d. Anchorage, Alaska 99508 and ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West International Airport Road Suite C Anchorage, AK 99518 Fax: (907) 245-8952 1 ] Jewelry Log 30-IUlay-Q9 R~41 2] LeakDetection - STP 21-May-09 1136 Signed ~b~- X53 l~sb~r' Q~~1- 0~~ EDE 50-029-23399.00 Color Log / 5Q{32 7-00 r ~ ~, ~ ~" Date : ~lU~ 0 3 2069 Print Name: ~~k~ ail t~ ~ C®~s. ~,m~~i~~so,: ~~sht»ae?e PROAcTive Ou-eHOSnc SERV~s, hrc., 130 W. INTERru-nor~u-~ AIRPORT i2D SurTE C, ANCHORAGE, AK 99518 PHONE: (907)245-8951 FAX: (907)245-88982 P-MAIL: pdsanchoraaeCa~memoryloa.com WEesITE:WWIN.memoPdlog.com C:\Docutnents and Settings\Owner\Desktop\Transmit BP.docx 03/18/09 ~,~~'~ ~ ~. ';:~.;, `s®°Wtie ~A~~~ ~~~~ ~ ~~°°`~~ Sc~~berg~r N0.5133 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 Wall .Inh It 1 .... nnn.~rlnHnn - n~~s ni r..~... rn J-27A AY3J-00010 CBL - ( 02/21/09 1 1 S-107 AWJB-26 MEM L L U ( ~- 02/25/09 1 1 09-34A AZ4D-00005 USIT (REVISED) 02/07/09 1 1 V-210 AWJB-00025 INJECTION PROFILE 02/23/09 1 1 MPB-22A AXBD•00005 MEM SCMT & TEMP PROFILE " _ (b '' 12/23/08 1 1 V-219 12103700 USIT (REVISION #2) . ~ 11/21/08 1 1 11-18 BOCV-00006 PRODUCTION LOG ) C/ 03/02/09 1 1 B-25 AVY5-00023 USIT - /'~ /'~ 03/06/09 1 1 N-18A AYKP-00013 PRODUCTION LOG ~-,~-5 / ~ 03/11/09 1 1 F-18 AVY5-00022 USIT / ~- ~% =' _ ~- 03/04/09 1 1 3-19/R-28 AZ4D-00009 LDL ~ ~ 03/06/09 1 1 V-117 BOOR-00003 MEM PRODUCTION PROFILE ~ - ( ~ 03/12/09 1 1 V-211 AY3J-00014 IPROF/RST WFL - ~ 03/16/09 1 1 V-214 AY3J-00013 IPROF/RST WFL - L 03/15/09 1 1 K-O6B AWJI-00017 MCNL ~ - 01/28/09 1 1 L5-15 12113027 RST - /Q ~} / • ~ 12/09/08 1 1 07-18 12071915 RST ~j I/ 12/01/08 1 1 15-15C AWJI-00015 MCNL _ ( 01/02/09 1 1 W-218 40018337 OH MWD/LWD EDIT 12/07/08 2 1 R-41 40018496 OH MWD/LWD EDIT ./~ ( 01/04/09 2 1 H-18 11999064 RST / - I p ~- 12/03/08 1 1 YLtASt ACKNOWLEDGE RECEIPT t3Y SIGNING AND RETUflNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date Delivered: ~ Q- W Q- o ~ 0 vu ~ lia~t~~ ' ~3-?v~~L!- ;~ ~ Copy ~e~f~~d 3~alo~ Alaska Data & Consulting Services 2525 Gambell Stceett ~Ijt 0 n ~ Anchorage, AK~ ~i,588 ~ ~ ~~~ ' ATTN: Beth °~ ~ _ , _ ~, - Received by: t,~ ~ ~ ~•r ~, ; dl~a~i •i •I Page 1 of 1 Saltmarsh, Arthur C (DOA) From: Hubble, Terrie L [Terrie.Hubble@bp.com] Sent: Tuesday, March 03, 2009 3:04 PM To: Saltmarsh, Arthur C (DOA) Subject: PBU R-41 / PTD # 208-153 H i Art, Please reference the following well: Well Name: PBU R-41 Permit #: 208-153 API #: 50-029-23399-00-00 Top Perf MD: 13475` Bottom Perf MD: 14700' This well began Production on February 28, 2009 Method of Operations is: Gas Lifted Date of Test: 02/28/09 Hours Tested: 4 24-Hour Rate /Oil-Bbl: 5,$51 24-Hour Rate /Gas-Mcf: 5,568 24-Hour Rate 1 Water-Bbl: 2,352 Test Rate /Oil-Bbl: 975 Test Rate /Gas-Mcf: 928 Test Rate /Water-Bbl: 392 Choke Size: 40 Gas-Oil Ration: 952 Flow Tubing Pressure: 360 Casing Pressure: 1,460 Oil Gravity-API: Unavailable 3/4/2009 STATE OF ALASKA ~q '~ ALASK~IL AND GAS CONSERVATION COSION '~~~~ WELL COMPLETION OR RECOMPLETION REPORT AND LOG ,.~~9 a. 1 a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended zoAAC 2s.,os zoAAC zs.,,o ~ COti ®Deve4gpl}~ 0irt1 E~& Exp~oraif~~y ^ GINJ ^ WINJ ^ WDSPL ^ WAG ^ Other No. of Completions. One p ^ Service Strati raphic 2. Operator Name: 5. Date Comp., Susp., or Aband„/ 12. Permit to Drill Number BP Exploration (Alaska) Inc. 1/ /2009 ~~ 208-153 - 3. Address: 6. Date Spudded 13. API Number P.O. Box 196612, Anchorage, Alaska 99519-6612 12/17/2008 - 50-029-23399-00-00 . 4a. Location of Well (Governmental Section): 7. Date T.D. Reached 14. Well Name and Number: Surface: 1/4/2009 ~ PBU R-41- 600' FSL, 4490' FEL, SEC. 32, T12N, R13E, UM 8. KB (ft above MSL): 47' 15. Field /Pool(s): , Top of Productive Horizon: 3281' FSL, 4360' FEL, SEC. 31, T12N, R13E, UM Ground (ft MSL): 18.5' Prudhoe Bay Field / Prudhoe Bay Total Depth: 9. Plug Back Depth (MD+TVD) Oil Pool 3809' FSL, 3536' FEL, SEC. 36, T12N, R12E, UM 14728' 8734' 4b. Location of Well (State Base Plane Coordinates, NAD 27): 10. Total Depth (MD+TVD) 16. Property Designation: Surface: x- 634442 y- 5977066 Zone- ASP4 14820' 8743'- ADL 028257 TPI: x- 629236 y- 5979655 Zone- ASP4 11. SSSV Depth (MD+TVD) 17. Land Use Permit: 5980115 Zone- ASP4 625182 l D th T t None : x- y- o a ep Directional Survey ®Yes ^ No 18 19. Water depth, if offshore 20. Thickness of Permafrost (TVD): . u mi I r nic and rin inf rmation r AAC 25.0 N/A ft MSL 1700 (Approx.) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): DIR / GR /RES, DIR / GR /RES / PWD, DIR / GR /RES 22. CASING, LINER AND CEMENTING RECORD CASING $ETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" 1 9# X- S rf 15 ' urf 155' 42" 0 sx Ar i S A r x. _ ~~ ~ ~~ 7" 26# L-80 26' 1 86 8-1 27 x LiteCr 16 s CI 4-1 12. 13 0 10 2' 14 2 ' 874 ' 6-1/ " 52 x las ' 23. Open to production or inject ion? ®Yes ^ No 24. TUBING RECORD If Yes, list each i TV f T & B P nterval open d N b f ti Si SIZE DEPTH SET MD PACKER SET MD ze an um er): er ora on (MD+ op ottom; D o ' 6 spf 2-7/8" Gun Diameter 4-1/2", 12.6#, 13Cr80 10339' 10263 , MD TVD MD TVD 13475' - 13570' 8754' - 8766' 13650' 8769' 8773' 1 1 ' 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. - 36 0 - 13690' -13840' 8776' - 6772' DEPTH INTERVAL MD AMOUNT Hi KIND OF MATERIAL USED 13890' - 13910' 8764' - 8760' ' ' ' ' Freeze Protect w! 80 Bbls Diesel 8737 - 8724 14050 - 14140 14180' - 14700' 8718' - 8731' 26. PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): Not on Production Yet N/A Date of Test: HOUfS Tested: PRODUCTION FOR OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: TEST PERIOD Flow Tubing CaSing PreSS: CALCULATED OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API (CORK): PreSS. 24-HOUR RATE• 27. CORE DATA Conventional Core(s) Acquired? ^Yes ®No Sidewall Core s A uired? ^Yes ®No If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 250.071. ~, :_. .-,.a~. None ~ ~ '~-7~ 9 _ ~ ; ~Ft)) 2~0~ ~" t Form 10-407 Revised 02/2007 CONTINUED ON REVERSE .SIDE ~4'~'l~ \ 28. GEOLOGIC MARKERS (LIST ALl FORMATIONS AN eRS ENCOUNTERED): 29. FORMATION TESTS NAME MD TVD Well Tested? ^ Yes ®No Permafrost Top If yes, list intervals and formations tested, briefly summarizing test results. Attach separate sheets to this form, if needed, and submit Permafrost Base 1770' 1709' detailed test information per 20 AAC 25.071. Ugnu 4478' 3845' None West Sak 2 6086' 5109' HRZ 8088' 6712' LCU / Miluveach 8217' 6815' Sag River 10493' 8626' Shublik A 10548' 8667' Shublik B 10620' 8716' Shublik C 10648' 8733' Sadlerochit 10681' 8752' Zone 4A / 42SB 10976' 8843' Zone 4A / 42SB 11056' 8841' Zone 4A / 42SB 12614' 8796' Zone 4A / 42SB 12715' 8794' Zone 4A / 42SB 13578' 8766' Zone 4A / 42SB 13863' 8768' Formation at Total Depth (Name): Zone 4A / 42SB 13863' 8768' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. ~~ ~ Signed Terrie Hubble Title Drilling Technologist Date PBU R-41 208-153 Prepared ey Name/Number. Terrie Hubble, 564-4628 Well Number Perm N . / A r val N Drilling Engineer: Mehrdad Nadem, 564-5941 INSTRUCTIONS Gerrew-~: 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. IreM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. IreM 4b: TPI (Top of Producing Interval). IreM 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. IreM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Irene 23: 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). IreM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). IreM 27: 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. IreM 29: 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 02/2007 Submit Original Only gp Page 1 of 1 Leak-Off Test Summary Legal Name: R-41 Common Name: R-41 Test Date Test Type Test Depth (TMD) Test Depth (TVD) AMW Surface Pressure Leak Off Pressure (BHP) EMW -- 12/22/2008 _- LOT 3,903.0 (ft) 3,393.0 (ft) 8.90 (ppg) 960 (psi) 2,529 (psi) 14.35 (ppg) 12/29/2008 FIT 10,493.0 (ft) 8,626.0 (ft) 8.50 (ppg) 960 (psi) 4,769 (psi) 10.64 (ppg) Printed: 1/79/2009 4:16:36 PM gp Page 1 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours ~ Task Code NPT Ph ase Description of Operations 12/15/2008 00:00 - 01:30 1.50 RIGD P PRE Bridle up and lower pipe skate chute, secure lines in derrick. Hold PJSM and lay down derrick. 01:30 - 02:00 0.50 RIGD P PRE Blow down pit complex and prepair to move. 02:00 - 03:00 1.00 MOB P PRE Move pit complex away from sub, stage on pad .Install jeep on pit complex. Move pit complex from w-pad to R-pad. 03:00 - 04:00 1.00 MOB P PRE Move Sub off well, pickup mats and herculite and clear location. 04:00 - 15:00 11.00 MOB P PRE Move sub from W-pad to R-Pad, after crossing the center 15:00 - 16:30 1.50 ~ RIGU P PRE 16:30 - 00:00 I 7.501 RIGU I N I WAIT I PRE 12/16/2008 100:00 - 06:00 6.00 RIGU N ~ WAIT ~ PRE 06:00 - 07:30 1.50 RIGU P PRE 07:30 - 09:00 1.50 RIGU P PRE 09:00 - 13:00 I 4.001 RIGU ~ P PRE 13:00 - 18:00 5.001 RIGU P PRE 18:00 - 20:30 2.501 RIGU P PRE 20:30 - 22:30 2.001 RIGU P PRE 22:30 - 00:00 1.501 RIGU P PRE 12/17/2008 00:00 - 04:00 4.00 RIGU P PRE 04:00 - 05:00 1.00 RIGU P PRE 05:00 - 06:00 1.00 RIGU P PRE 06:00 - 07:00 1.00 RIGU P PRE 07:00 - 09:00 2.001 RIGU P PRE channel bridge, had gasket failure on one of the hydraulic drive motors on the moving system. replace motor and continue move to R-pad. Sub on location at 15:00 hrs. Install light in derrick, repair grease lines on man rider sheaves in derrick, Hold PJSM for raising derrick. Weather went from phase one to phase two, with wind gust up to 62 mph. Suspend operations due to weather. Continue waiting on weather. Phase 3 was called at 18:30 hrs. Did not make crew change at midnight. Acceot rig to Standby ~ 1630 hrs. 12/15/2008 Continue Waiting on Weather. -Crew change at 0530 hrs. -Phase 3 road conditions. PJSM. Inspect, raise, and pin derrick and cattle shute. Continue to Rig Up. -Secure all lines in derrick. -Close cellar door and trim herculite. Move in and spot Sub on R-41. -Lay mats and herculite. -Bridle down. -Spot and level pits. Continue to Rig Up on R-41. -Spot cuttings tank and rig up interconnect. -Button up cellar and install walkways and handrails. -Start taking on fresh water in pits. -Spot and power up MWD, Geo, and Mud Engineer shacks. -Hook up dog bones to Top Drive and tie bridle lines back. Rig up hydraulic service loops and kelly hose. -Make up mud lines and take on mud in pits. -Prep 4" Drill Pipe in shed. Nipple up Diverter System and Riser. -Change out 12" air boot to 20" air boot. -Make up riser, turnbuckles, and install 4" valves on conductor. Pick up 4" Drill Pipe and stand back in derrick. -Note: tagged obstruction in conductor 78' below rotary table. Continue to pick up 4" DP / HW DP and stand back in derrick. Make up Jar Stand and Drill Collar Stand and rack back in derrick. Clear snow from diverter line. Function Test Diverter System. -Test witnessed by AOGCC Rep Lou Grimaldi, BP WSL Mark Staudinger, and NAD TP Roy Hunt. Make up BHA #1 as per Directional Driller. Printed: 1/19/2009 4:16:41 PM gp Page 2 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours Task Code NPT Phase Description of Operations - -- 12/17/2008 07:00 - 09:00 2.00 RIGU P PRE -Hold Pre-spud Meeting with BP WSL Brian Buzby and NAD TP Roy Hunt. 09:00 - 09:30 0.50 RIGU P PRE Fill Riser and check for leaks - ok. Fill and test mud line to 2500 psi - ok. 09:30 - 12:30 3.00 DRILL P SURF Spud R-41 and drill from 78' to 330'.- 12:30 - 13:00 0.50 DRILL P 13:00 - 13:30 0.50 DRILL P 13:30 - 15:30 2.00 DRILL P 15:30 - 17:00 1.50 DRILL P 17:00 - 00:00 7.00 DRILL P ~ 12/18/2008 ~ 00:00 - 11:00 ~ 11.00 ~ DRILL ~ P 11:00 - 12:30 1.50 ~ DRILL P 12:30 - 14:00 1.50 DRILL P 14:00 - 15:00 1.00 DRILL P 15:00 - 16:00 1.00 DRILL P 16:00 - 17:30 1.50 DRILL P 17:30 - 00:00 6.501 DRILL P -485 gpm (~ 445 psi on, 425 psi off. -40 rpm ~ 2k TO. -52k Up Wt, 50k Dn Wt, 49k Rot Wt. SURF Circulate and condition mud ~ 450 gpm, 425 psi. -60 rpm ~ 4.1 k TO. SURF POH from 330' to 56'. ` -Pump out from 330' to 238' ~ 450 gpm, 410 psi. SURF Pick up and make up remainder of BHA #1 as per Directional Driller. SURF Rig up E-line and Gvro• RIH with BHA #1 to 330'. -Encounter fill and wash down from 297' to 330'. -Take surveys as needed. SURF Continue to drill ahead from 330' to 760'. -500 gpm ~ 780 psi off, 800 psi on. -60 rpm ~ 2.4k TO off, 3.2k TO on. -10k WOB -75k Up Wt, 68k Dn Wt, 73k Rot Wt -Losing 100 to 150 bph of mud through gravels (until -500'1. Add LCM (Mix II Coarse) and losses diminished to none. -Rig down Gyro C~ 671'. -Backream 30' to 90' on connections as hole dictates. SURF Continue to drill ahead in 12-1/4" surface hole from 760' to 1707' -550 gpm ~ 1360 psi on, 1230 psi off. -60 rpm ~ 4.6k TO on, 2.7k TO off. -15-25k WOB -95k Up Wt, 78k Dn Wt, 88k Rot Wt. -Backream 30' on connections and survey every stand. SURF CBU x6 C~3 575 gpm, 1361 psi. -60 rpm ~ 2.8k TO -Lots of sand comin back over shakers. 'SURF POH from 1707 to top of BHA #1 with no problems. SURF Stand back BHA #1 as per Directional Driller. -Lay down Bit -Graded 6-5-SD-G-E-I-SS-PR. SURF Make up BHA #2 as per Directional Driller. -Pick up new 12-1/4" bit. SURF RIH from top of BHA #2 to 1707' with no problems. -Wash down from 1611' to 1707' ~ 525 gpm, 1325 psi, 40 rpm, 2.4k TQ. -No noticeable fill encountered. SURF Drill ahead from 1707' to 2090' as per Directional Driller. -575 gpm ~ 1680 psi off, 1905 psi on. -60 rpm @ 3k TO off, 6.8k TQ on. -15-25k WOB -101k Up Wt, 78k Dn Wt, 90k Rot Wt. -Backream 30' on connections and survey every stand. *No static losses, but dynamic losses averaging 50 bph. rnnieo: viaicv~a 4:10:41 rm gp Page 3 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours i Task Code NPT Phase Description of Operations 12/19/2008 00:00 - 12:00 12.00 DRILL P SURF Continue to drill ahead in 12-1/4" surface hole from 2090' to TD ~ 3913' -600 gpm ~ 2700 psi on, 2515 psi off. -80 rpm ~ 6.4k TO on, 5.4k TO off. -15-25k WOB -133k Up Wt, 88k Dn Wt, 103k Rot Wt. -Backream 30' on connections and survey every stand. 12:00 - 14:00 2.00 DRILL P SURF CBU x4 ~ 650 gpm, 2766 psi. -80 rpm ~ 5.3k TO, 110k Rot Wt. -Shakers cleaned up after 4th bottoms up. 14:00 - 15:30 1.50 DRILL P SURF Monitor Well -Static. POH from 3913' to 1611' with no problems. 15:30 - 16:30 1.00 DRILL P SURF RIH from 1611' to 3913' with no problems. 16:30 - 18:00 1.50 DRILL P SURF CBU x1 (~ 650 gpm, 2575 psi. -80 rpm @ 5.3k TO 18:00 - 20:00 2.00 DRILL P SURF Monitor well -Static. Pump dry job and POH from 3913' to 641' with no problems. 20:00 - 20:30 0.50 DRILL P SURF Stand back jar stand and drill collar stand. 20:30 - 22:30 2.00 DRILL P SURF Lay down BHA #2 as per Directional Driller. 22:30 - 23:00 0.50 DRILL P SURF Clean and clear rig floor. 23:00 - 00:00 1.00 CASE P SURF Ri u to run casin with Tesco Casin Drive S stem. -Remove Bails and Kelly Hose. -Rig up Cement Hose to Top Drive. t tic es. D namic losses avera a 40-50 b h. 12/20/2008 00:00 - 03:30 3.50 CASE P SURF Continue to Rig Up to run 9-5/8" Casing with Tesco Casing Drive System. -Make dummy run with landing joint. -Break out landing joint and set hanger back on floor. -Change out Top Drive Saver Sub to 4-1/2" IF. -Change out die blocks on grabber foot. -Rig up Spider Slips and Backup Tongs. -Rig Up Tesco CDS to Top Drive and hook up hydraulic service loops. 03:30 - 13:30 10.00 CASE P SURF _ Run 9-5/8" 47# L-80 Hydril 563 Surface Casing as per running order. -Baker Lok shoe track. -Check floats -good. -Dope connections with Jet Lube Seal Guard and Torque to 25k ft-Ibs. -Run free-floating Hydroform Centralizers on first 3 joints. -Fill pipe every joint and circulate every 25 joints. -Obtain Pick Uo /Slack Off /Rotating Weights and Torque Values eve 25 'oints. -Work and ream throught tight spots ~ 1911' and 2400'. -At 1911', 20 rpm, 8-10k TO, 4 bpm, 210 psi. -At 2400', 20 rpm, 9-14k TO, 4 bpm, 230 psi. -Land 9-5/8" casin ~ 3903'. -225k Up Wt, 140k Dn Wt. -57 bbls lost to formation while runnin casin . *Torque Values while running 9-5/8" casing with Tesco CDS (20 rpm): rnniea: u i aicvva v: w.r i rm ~ r gp Page 4 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours Task Code NPT Phase Description of Operations 12/20/2008 03:30 - 13:30 10.00 CASE P SURF 2k ft-Ibs ~ 960' 5k ft-Ibs ~ 1910' 11 k ft-Ibs ~ 3016' 14k ft-Ibs ~ 3799' 13:30 - 15:30 2.00 CEMT P SURF CBU x2 ~ 5 bpm, 275 psi. -Reciprocate Pipe 10' strokes. -25 bbls lost to formation while circulatin . 15:30 - 18:00 2.50 CEMT P SURF PJSM with SLB Cementers. Switch over to Schlumberger. -Pump 5 bbls of water. Pressure test lines to 4000 psi - OK. -Pump 75 bbls of 10.0 ppg of MudPush II ~ 6 bpm, 150 psi. -Shut down and unsling Tesco tool from landing joint. Drop bottom plug and sting Tesco tool back into landing joint. -Pump 706 bbls of 10.7 ppg DeepCrete lead cement ~ 6 bpm, 200 psi ICP, 400 psi FCP. -Pum 91 bbls of 15.8 Class " i ~ 5 bpm, 350 psi. -Unsling from landing joint and drop top plug. Sting back into landing joint chase with 10 bbls H2O. `Reciprocated pipe in 10' strokes while pumping lead cement, set casing on ring while batching up tail cement. Unable to reci rocate casin due to hi h P/U wei ht. 350k 18:00 - 19:00 1.00 CEMT P SURF Switch over to rig pumps and displace cement with 270 bbls 9.3 ppg Drilplex Mud C~ 294 gpm, 282 psi ICP, 412 psi FCP. -Saw red d e back to surface ~ 750 strokes. -At 1200 strokes decrease rate to 245 gpm, 336 psi ICP, 428 psi FCP. -At 1900 strokes decrease rate to 200 gpm, 400 psi ICP, 749 psi FCP. -At 3300 strokes decrease rate to 110 gpm, 697 psi ICP, 730 psi FCP. -At 33 strokes of c ment back to surfa -Bumped plug ~ 3830 strokes at 730 psi and pressure up to 1500 psi - hold for 2 minutes. -Bleed off pressure and check floats - ok. 96% returns throughout iob - 22 bbls lost to formation. Returned 35 bbls "sidewalk cement" back to surface. CIP ~ 19:00 hrs. 19:00 - 19:30 0.50 CEMT P SURF Pressure up and test 9-5/8" Casing to 3500 psi for 30 minutes - ood. -Bleed off pressure. ..19:30 - 21:30 2.00 CEMT P SURF Rig down Casing and Cementing equipment. -Drain and flush Riser and Hydril. -Blow down all lines. -Remove diverter line and 4" valves. -Rig down and lay down Tesco tool. -Change out quill from 4.5" IF to 4" HT40 21:30 - 23:00 1.50 DIVRTR P SURF Rig down Diverter Stack and Riser. -Remove Riser and Dresser Sleeve. Install 12" Air Boot. -Remove Hydril and secure in cellar. 23:00 - 00:00 1.00 WHSUR P SURF Nipple Up Wellhead. -Expedite wellhead equipment in cellar. -Make up Casing Head. rnntea: viarcuua a:i°:wi rm ~ ~ gp Page 5 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES ~~ Phase. Description of Operations Hours Task Code NPT Date From - To _~ 12/21/2008 _ __ 00:00 - 01:00 - 1.00 WHSUR P SURF Nipple Up Wellhead. -Test Casing Head to 1000 psi for 10 minutes -good. -Nipple up Tubing Head. 01:00 - 03:00 2.00 BOPSU P SURF Nipple Up BOP stack. -Rig down cement hose from Top Drive and rig up kelly hose. 03:00 - 04:00 1.00 BOPSU P SURF Rig up to test BOPE with 4" test joint. 04:00 - 04:30 0.50 BOPSU P SURF Hold After-Action Review on NU BOPE. PJSM on Testing BOPE. 04:30 - 08:30 4.00 BOPSU P SURF Test BOPE to 250 si low / 3500 si hi h. -Test Upper 3-1/2" x 6" VBR, Lower 2-7/8" x 5" VBR, and Hydril to 250 psi low / 3500 psi high with 4" test joint. -Witness of test waived by AOGCC Rep Lou Grimaldi. -Test Witnessed by BP WSL Brian Buzby and NAD TP Kelly Cozby. 08:30 - 10:00 1.50 BOPSU P SURF Lay down Test Joint and rig down tesing equipment. -Blow down all surface lines -Install wear ring 10:00 - 14:00 4.00 BOPSU P SURF Pick up 4" Drill Pipe 1x1 from pipe shed down to 3630'. 14:00 - 15:30 1.50 BOPSU P SURF POH and stand back drill pipe in derrick. 15:30 - 16:00 0.50 BOPSU P SURF Pick up 4" Drill Pipe 1x1 from pipe shed down to 480'. 16:00 - 17:00 1.00 BOPSU P SURF PJSM. Cut and slip 91' of drilling line. -Clean under drawworks. 17:00 - 18:00 1.00 BOPSU P SURF Service Top Drive, Crown and blocks, and drawworks. 18:00 - 18:30 0.50 BOPSU P SURF POH and stand back drill pipe in derrick. 18:30 - 20:00 1.50 DRILL P INT1 PJSM. Make up 8-1/2" Drilling BHA #3 as per Directional Driller. 20:00 - 20:30 0.50 DRILL P INT1 RIH with BHA #3 on 4" HWDP down to 920'. 20:30 - 21:00 0.50 DRILL P INT1 Shallow hole test MWD with 509 gpm, 1061 psi -good. Test casin to 15 - ood. 21:00 - 00:00 3.00 DRILL P INT1 Continue to single in hole with BHA #3 on 4" drill pipe from 920' to 3308'. -Pick up Ghost Reamer ~ 3308'. 12/22/2008 00:00 - 00:30 0.50 DRILL P INT1 Continue to RIH with BHA #3 from 3308' to 3807'. -Ta cement ~ 3807' 00:30 - 02:00 1.50 DRILL P INT1 Drill out cement, shoe track, rat hole, and 32' of new hole from 3807' to 3945'. -500 gpm ~ 1820 psi. -60 rpm ~ 5-6k TO, 5-10k WOB. -130k Up Wt, 80k Dn Wt, 100k Rot Wt. -Drill out float collar ~ 3823' -Drill out shoe from 3899' to 3901' -Displace to 8.9 ppg LSND mud while drilling from 3913' to 3945'. 02:00 - 03:00 1.00 DRILL P INT1 Perform LOT as per BP WSL Mark Staudinger. -Leak off ~ 960 si. EMW = 14.3 ppg. -Obtain benchmark ECD readings and Slow Pump Rates. 03:00 - 12:00 9.00 DRILL P INT1 Drill ahead in 8-1/2" intermediate hole as per directional drill from 3933' to 5320'. -580 gpm f~ 1930 psi on, 1710 psi off -80 rpm ~ 7.3k TO on, 6.1 k TO off -10-15k WOB -150k U{i Wt, 100k Dn Wt, 120k Rot Wt rnnceo: inaic~ua 4:10.41 nvi ~ ~ BP Operations Summary Report Legal Well Name: R-41 Page 6 of 18 Common Well Name: R-41 Spud Date: 12/17/2008 'Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABORS 9ES Rig Number: 9ES Date I From - To Hours Task Code NPT Phase 12/22/2008 03:00 - 12:00 9.00 DRILL P INTi 12:00 - 00:00 12.00 DRILL P INT1 12/23/2008 100:00 - 08:00 8.001 DRILL P INT1 08:00 - 12:00 ~ 4.00 ~ DRILL ~ P ~ ~ INT1 12:00 - 00:00 12.001 DRILL P INT1 112/24/2008 100:00 - 12:00 ~ 12.001 DRILL ~ P ~ INTi Description of Operations -CECD = 9.38 ppg AECD = 9.83 ppg -Backream 90' on connections at drilling rate and ream down ~ 75% drilling rate. Survey every 90'. -Pumped high vis sweep ~ 4600' and saw 20% increase in returns. Continue to drill ahead in 8-1/2" hole from 5320' to 7040'. -580 gpm ~ 3006 psi on, 2655 psi off -100 rpm ~ 10.4k TO on, 6.8k TO off -10-15k WOB -168k Up Wt, 108k Dn Wt, 137k Rot Wt -CECD = 10.0 ppg AECD = 10.5 ppg -Backream 90' on connections at drilling rate and ream down ~ 75% drilling rate. Survey every 90'. -Pumped high vis sweep ~ 5500' and saw 20% increase in returns. -Pumped high vis sweep ~ 6410' and saw no increase in returns. Continue to drill ahead in 8-1/2" hole from 7040' to 8000'. -580 gpm Ct$ 3790 psi on, 3680 psi off -100 rpm ~ 10.1 k TO on, 8.9k TQ off -5-15k WOB -205k Up Wt, 120k Dn Wt, 145k Rot Wt -Backream 90' on connections at drilling rate and ream down ~ 75% drilling rate. Survey every 90'. -Begin to weight up from 9.2 ppg to 10.7 ppg on the fly @ 7800' prior to entering HRZ. Drill ahead in 8-1/2" hole from 8000' to 8283' at lower pump and rotary rate. -525 gpm ~ 3600 psi on, 3380 psi off -80 rpm ~ 10k TQ on, 8.6k TO off -5-15k WOB -210k Up Wt, 124k Dn Wt, 149k Rot Wt -Backream 90' on connections at drilling rate and ream down ~ 75% drilling rate. Survey every 90'. Continue to drill ahead in 8-1/2" hole from 8283' to 9238'. -514 gpm ~ 4000 psi on, 3712 psi off -80 rpm ~ 9.9k TQ on, 8.7k TQ off -10-15k WOB -195k Up Wt, 125k Dn Wt, 155k Rot Wt -CECD = 11.17 ppg, AECD = 11.59 ppg -Backream 90' on connections at drilling rate and ream down ~ 75% drilling rate. Survey every 90'. -Pump weighted sweep ~ 8780' with no increase in cuttings over shakers. Continue to drill ahead in 8-1/2" hole from 9238' to 9939'. -514 gpm ~ 3920 psi on, 3772 psi off -80 rpm ~ 12.7k TO on, 12.5k TO off -5-15k WOB -225k Up Wt, 140k Dn Wt, 165k Rot Wt -Backream 90' on connections at drilling rate and ream down C~3 75% drilling rate. Survey every 90'. -Pump high vis sweep ~ 9900' and saw 15% increase in cuttings over shakers. Nnnted: inaieuua a:i°:ai rm gP Page 7 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours Task Code NPT Phase Description of Operations 12/24/2008 ~ 12:00 - 20:00 8.00 DRILL P INT1 Continue to drill ahead in 8-1/2" hole from 9939' to 10481'. 20:00 - 21:00 ~ 1.00 ~ DRILL ~ P ~ ~ INT1 21:00 - 21:30 0.501 DRILL P INTi 21:30 - 23:00 1.501 DRILL P INTi 23:00 - 00:00 ~ 1.00 ~ DRILL ~ P ~ ~ INT1 ~ 12/25/2008 ~ 00:00 - 06:00 ~ 6.00 ~ DRILL ~ P ~ ~ INTi 06:00 - 09:00 ~ 3.00 ~ DRILL ~ N ~ RREP ~ INTi 09:00 - 18:00 9.001 DRILL I P I INT1 18:00 - 00:00 6.001 DRILL I P I INT1 12/26/2008 100:00 - 02:30 I 2.501 DRILL I P I INT1 02:30 - 03:30 1.00 DRILL P INTi 03:30 - 07:00 3.50 DRILL P INT1 07:00 - 10:00 3.00 DRILL P INT1 10:00 - 14:00 ~ 4.00 ~ DRILL ~ P ~ ~ INTi 14:00 - 15:00 1.001 DRILL I P I INT1 -506 gpm ~ 4000 psi on, 3877 psi off -80 rpm ~ 13k TO on, 12.6k TO off -5-15k WOB -230k Up Wt, 145k Dn Wt, 170k Rot Wt -Backream 90' on connections at drilling rate and ream down ~ 75% drilling rate. Survey every 90'. CBU x1 C~ 10481' for sample. -514 gpm (~ 3898 psi. -100 rpm ~ 11.8k TQ. Continue to drill ahead from 10481' to 10493.5'. -506 gpm ~ 4036 psi on, 3878 psi off -80 rpm ~ 13k TQ on, 12.6k TO off -5-15k WOB -CECD = 11.00 ppg, AECD = 11.27 ppg. CBU x 1.5 ~ 10494.5' for samples. Call TD ~ 10493.5' as per Geologist. -506 gpm ~ 3760 psi. -100 rpm ~ 11.8k TO. Backream from 10493.5' to 10193'. -524 gpm C~ 4000 psi -100 rpm ~ 9.7k TO. Continue to Backream from 10193' to 8650'. -524 gpm ~ 3625 psi -100 rpm ~ 9.7k TO, 181 k Rot Wt. Backream at reduced rate due to washout on Fluid End #1 on ,Mud Pump #1 from 8650' to 8275'. -269 gpm ~ 1250 psi. -100 rpm ~ 10-11 k TQ. Continue backreaming at reduced rate from 8275' to 6399' while waiting on repairs to Mud Pump #1. -271 gpm ~ 1269 psi. -100 rpm ~ 8.1 k TQ, 141 k Rot Wt. Backream with both pumps from 6399'to 4270'. -550 gpm ~ 3157 psi. -100 rpm ~ 5-6k TQ, 110k Rot Wt. Continue Backreaming from 4270' to 3698' -MAD Pass from 4235' to 3725' ~ 500 fph for MWD depth correlation. -570 gpm ~ 2560 psi. -100 rpm ~ 5-6k TQ. -CBU x1.5 while MAD Passing in cased hole -shakers clean. PJSM. Service Top Drive and Crown. RIH from 3698' to 10385' with no problems. Wash down from 10385' to 10493.5' and CBU x3. -511 gpm ~ 3705 psi. -100 rpm ~ 15k TO. -Pump hi-vis sweep and with no cuttings increase observed. Monitor Well -Static. POH from 10493.5' to 3500'. -POH wet from 10491' to 8211' (through Kingak). -Pump Dry Job and POH from 8211' to 3500'. CBU xi C~ 580 gpm, 2570 psi. rnnceu: viyicuua v.i°.yi rm ~1 BP Operations Summary Report Legal Well Name: R-41 Page 8 of 18 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 '~~ Rig Name: NABOBS 9ES Rig Number: 9ES bate ~ From - To Hours Task Code NPT Phase 12/26/2008 14:00 - 15:00 I 1.00 DRILL I P I INTi 15:00 - 16:30 1.50 DRILL P INT1 16:30 - 19:00 2.50 DRILL P INT1 19:00 - 19:30 0.50 DRILL P INT1 19:30 - 21:30 2.00 CASE P INT1 21:30 - 22:00 0.50 CASE P INT1 22:00 - 22:30 0.50 CASE P INT1 22:30 - 00:00 1.50 CASE P INTi 12/27/2008 100:00 - 01:00 1.001 CASE P INT1 01:00 - 09:00 8.001 CASE P INT1 09:00 - 10:00 1.00 CASE P 10:00 - 00:00 14.00 CASE P 12/28/2008 ~ 00:00 - 01:00 ~ 1.00 ~ CASE ~ P ~ ~ INTi 01:00 - 02:00 1.00 CASE P INT1 02:00 - 02:30 0.50 CEMT P INT1 02:30 - 05:30 3.00 CEMT P INT1 05:30 - 07:00 1.50 CEMT P INTi Description of Operations -100 rpm ~ 9.7k TO. -Remove Blower Hose and Pump Dry Job. POH from 3500' to top of BHA #3. Lay down BHA #3 as per Directional Driller. Clean and Clear rig floor. PJSM. Chanae out Upoer Rams to from 3-1/2" x 6" VBR to 7" -Flush stack and pull wear ring. -Change out to long bails on Top Drive. Rig up and Test Upper 7" Rams to 250 psi low / 3500 psi hiah. Ria down test eguipment and lay down 7" test joint. Rig up to run 7" Casing. -Rig up Spider Slips and Franks Tool. Continue to rig up 7" Casing running equipment. -Rig up 350 ton elevators, power tongs, and backup tongs. PJSM. Run 7" 26# L-80 BTC-M Casing as per running order to 3900'. -Baker Lok shoe track. Check floats - ok. -Torque BTC-M Connections to 9k ft-Ibs. -Use Best of Life 2000 dope on threads. -Run 2 centralizers on joint #1. -Run 1 free floating straight blade centralizer per joint on joints #39-98 -Break circulation every 10 joints ~ 4 bpm. CBU x1.5 at 9-5/8" shoe C~ 213 gpm, 485 psi. -129k Up Wt, 107k Dn Wt. Run 7" 26# L-80 BTC-M x TCII Casing as per running order from 3900' to 9561'. -Torque BTC-M Connections to 9k ft-Ibs. -Use Best of Life 2000 Dope on threads. -Run 1free-floating straight blade centralizer per joint on BTC-M joints #99-126 -Torque Turn TCII Connections to 10,100 ft-Ibs. -Use Jet Lube Seal Guard on TCII threads. -Run ifree-floating straight blade centralizer per joint on XO joint and TCII joints #1-12 -Break circulation every 10 joints ~ 4 bpm. -CBU x1 above Kingak over the course of 5 joints ~ 4 bpm, 800 psi. No circulation through Kingak. Run 7" 26# L-80 TCII Casing as per running order from 9561' to 10423'. -Torque Turn TCII Connections to 10,100 ft-Ibs. -Use Jet Lube Seal Guard on TCII threads. -No circulation through Kingak. -Lost a total of 29 bbls to formation while running casing. Space out and land 7" Intermediate Casing ~ 10493'. -Tag bottom with 7.3' of compression. -338k Up Wt, 152k Dn Wt. Rig down casing running equipment and rig up cement head. Circulate and condition mud. Stage pumps up to 5 bpm, 930 INTi INT1 psi initial, 770 psi final. -Hold PJSM with SLB Cementers while circulating. Switch over to Schlumberger Pumps. rnrneu. vimcwa Y.iv.Y~ rm gp Page 9 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours Task Code NPT Phase Description of Operations 12/28/2008 105:30 - 07:00 1.50 CEMT I P I INTi I -Pump 5 bbls of water. Pressure test lines to 4000 psi - OK. PROD1 -Drop top plug, positive indication plug left head, and chase with 10 bbls H2O. Full returns while pumping cement. 'No i e reci vocation throughout job. 07:00 - 09:30 2.50 CEMT P INTi Switch over to rig pumps and disp ace cement with total of 394 bbls 10.7 ppg LSND. -Displace ~ 4 bpm, 380 psi initial, 960 psi final. -Slow pumps ~ 4700 stks to 3 bpm, 1000 psi initial, 1630 final. -Slow pumps @ 5200 stks to 1.5 bpm, 1510 psi initial, 1760 psi final. -Slow pumps ~ 6400 stks to 1 bpm, 1650 psi initial, 1790 psi final -Bumped plug ~ 6760 strokes and pressure up to 2310 psi. Hold for 2 minutes. -Bleed off and checked floats -good. 7" casing shoe ~ 10493'. CIP ~ 09:28 hrs. Full returns throughout job. 09:30 - 10:30 1.00 CEMT P INT1 Pressure test 7" casing to 3500 psi for 30 minutes -good. 10:30 - 13:00 2.50 CEMT P INT1 Rig down cementing equipment and 7" casing equipment. -Clean and clear rig floor. 13:00 - 13:30 0.50 WHSUR P INT1 Install 7" packoff and test to 5000 psi for 30 minutes -good. -Confirm infectivity in 7" x 9-5/8" annulus. Pump away 5 bbls ~ 3 bpm, 1150 psi. 13:30 - 14:30 1.00 BOPSU P INT1 14:30 - 16:00 1.50 BOPSU P INT1 16:00 - 16:30 0.50 BOPSU P INT1 16:30 - 17:30 1.00 BOPSU P INT1 17:30 - 19:30 2.00 BOPSU N RREP INT1 19:30 - 22:00 2.50 BOPSU P INTi 22:00 - 00:00 2.00 DRILL P 112/29/2008 100:00 - 00:30 0.501 DRILL P 00:30 - 04:30 4.00 I DRILL P 04:30 - 07:00 2.50 DRILL P -Pump 25 bbls of 11.0 ppg of MudPush II ~ 3 bpm, 480 psi. -Shut down and release bottom plug, positive indication plug left head. -Pump 142 bbls of 11.5 ppg LiteCrete lead cement ~ 4 bpm, 550 psi. -Pump 34 bbls of 15.8 ppg Class "G" tail cement ~ 4 bpm, 420 PJSM. Change out Upper 7" Rams to 3.5" x 6" VBR. Service Top Drive and Crown. Bring BHA equipment up beaver slide to rig floor. -Inject 5 bbls down 7" x 9-5/8" annulus ~ 3 bpm, 1000 psi. Change out inner support tube on Top Drive Back-up Wrench. Rig up and test BOP Rams. -Test Upper 3-1/2" x 6" VBR and Lower 2-7/8" x 5" VBR with 4.5" test joint to 250 psi low / 3500 psi high. -Test Upper 3-1/2" x 6" VBR with 4" test joint to 250 psi low / 3500 psi high. -Rig down testing equipment and install wear ring. PJSM. Pick up 6-1/8" Drilling BHA #4 as per Directional Driller. Fraa~a Protect 7" x 4-5/8",Annulus out of critical Dath; -Bullhead 105 bbls of 10.7 ppg mud _Hnnk ~~~ i ~ttia RPri anri hullhPad 75 bbls of dead crude ~ 1.5 b m, 850 si ICP, 1000 psi FCP. PROD1 Continue to pick up 6-1/8" Drilling BHA #4 as per Directional Driller. PROD1 Pick up 4" Drill Pipe 1x1 and RIH with BHA #4 to 4228' -Shallow hole test MWD at 1092' at 210 gpm, 850 psi -good. PROD1 RIH on stands from 4228' with BHA #4 to 10218'. rnmeo: viaizwa a:io:vi rm ~' ~ gp Page 10 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date 'From - To ~ Hours Task Code NPT Phase Description of Operations 12/29/2008 07:00 - 08:00 1.00 DRILL P PRODi Slip and cut 82' of drilling line. 08:00 - 11:30 3.50 DRILL P PROD1 Drill shoe track, Begin displacing wellbore, Drill 20' of new hole. -Wash down and tag float collar ~ 10409'. -240 gpm r~ 2191 psi on, 2120 psi off. -4-7k WOB -50 rpm ~ 14-15k TO on, 14k TO off. -Drill shoe track from 10409' to 10483'. -Pump 50 bbl spacer with 10% Steel Lube EP -Begin displacing wellbore to 8.5 ppg Flo-Pro SF mud. -Continue drilling shoe track and drill out shoe ~ 10493'. -Drill 20' of hew hole to 10513'. 11:30 - 12:00 0.50 DRILL P PROD1 Continue displacement of wellbore to 8.5 ppg Flo-Pro SF mud. -240 gpm ~ 2080 psi. -50 rpm ~ 11 k TO. 12:00 - 12:30 0.50 DRILL P PROD1 Pull bit into 7" shoe ~ 10493' and perform FIT as per BP WSL Blair Neufeld. -FIT a uivalent to 10.64 pg achieved. 12:30 - 00:00 11.50 DRILL P PROD1 Drill ahead from 10513' to 10983' as per directional driller. -250 gpm ~ 1970 psi on, 1675 psi off. -50 rpm ~ 6.7k TO on, 5k TO off. -20k WOB -200k Up Wt, 155k Dn Wt, 168k Rot Wt. -Wipe 90' on connections and survey every 30'. 12/30/2008 00:00 - 01:00 1.00 DRILL P PROD1 Continue to drill ahead from 10983' to 11077' MD. -250 gpm ~ 1955 psi on, 1820 psi off. -50 rpm ~ 6.7k TQ on, 5k TQ off. -20k WOB -206k Up Wt, 150k Dn Wt, 168k Rot Wt. -Wipe 90' on connections and survey every 30'. -Actual slide time = 0.97 hrs. -Actual rotate time = 0.32 hrs. 01:00 - 02:00 1.00 DRILL P PROD1 CBU xi ~ 260 gpm, 1754 psi. -50 rpm ~ 5.2k TO. 02:00 - 03:00 1.00 DRILL P PROD1 Monitor Well -Static. Mud weight in/out - 8.6 ppg. POH from 11077' to 7" shoe ~ 10493' with no problems. -PU 206K, SO 150K. 03:00 - 08:00 5.00 DRILL P PROD1 Pump dry job and POH from 10493'. 08:00 - 09:30 1.50 DRILL P PROD1 Rack back BHA #4 and lay down the insert bit and bent housing motor. Bit Grade: 1-1-WT-A-E-I-LT-BHA. 09:30 - 12:00 2.50 DRILL P PROD1 Make up 6-1/8" production hole BHA #5 including: -6-1/8" PDC bit, 1.5 degree bent motor, stabilizer, flex drill collar, DIR/GR/RES/DEN/NEU, flex collars, circ sub, and jars. 12:00 - 16:30 4.50 DRILL P PROD1 RIH with 6-1/8" drilling BHA #5 to 10,493' MD. -Shallow hole test MWD at 1200' MD -250 GPM, 985 psi. -Fill pipe every 3000'. 16:30 - 17:00 0.50 DRILL P PROD1 Service crown and install blower hose. 17:00 - 17:30 0.50 DRILL P PROD1 Continue to trip in hole to 11,077' MD. -Loss 80 bbls of 8.6 mud to formation while tri in in the hole. rnrneo: inarzuuy a:i°:vi rm • • gP Page 11 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING Rig Name: NABOBS 9ES Date From - To Hours ' Task Code NPT 12/30/2008 17:30 - 22:00 4.50 DRILL P 22:00 - 22:30 0.50 DRILL P 22:30 - 00:00 1.50 DRILL P 12/31/2008 100:00 - 12:00 12.001 DRILL P 12:00 - 00:00 12.00 I DRILL P 1/1/2009 100:00 - 12:00 12.00 DRILL P 12:00 - 00:00 I 12.001 DRILL I P 1/2/2009 X00:00 - 04:30 4.501 DRILL P Spud Date: 12/17/2008 Start: 12/15/2008 End: 1 /12/2009 Rig Release: 1 /11 /2009 Rig Number: 9ES Phase Description of Operations PROD1 MAD pass from TD to 7" shoe. -200 ft/hr pulling speed. -PU 205K, SO 150K. -240 GPM, 1625 psi. Gained 80 bbls due to wellbore breathin . PROD1 RIH to 10,983' MD and wash to bottom at 11,077' MD. PROD1 Drill 6.125" production interval from 11,077'to 11,109' MD. -250 GPM, 1837 psi on, 1775 psi off. -60 RPM, 6.8K Tq on, 6.1 K Tq off. -PU 200K, SO 150K, ROT 170K. -Actual Rotate Time = 0.31 hrs. -Actual Slide Time = 0.0 hrs. -Survey every 30', backream 90' prior to connections. PROD1 Drill 6.125" production interval from 11,109'to 11,889' MD. -250 GPM, 2187 psi on, 1960 psi off. -50 RPM, 8.9K Tq on, 5K Tq off. -PU 192K, SO 140K, ROT 168K. -Actual Rotate Time = 3.45 hrs. -Actual Slide Time = 3.18 hrs. -Survey every 30', backream 90' prior to connections. PROD1 Drill 6.125" production interval from 11,889'to 12,639' MD. 250 GPM, 2380 psi on, 2220 psi off. -60 RPM, 7.8K Tq on, 6.7K Tq off. -PU 210 K, SO 150K, ROT 170K. -Actual Rotate Time = 3.53 Hours. -Actual Slide Time = 3.83. -Survey every 30', backream 90' prior to connections. PROD1 Drill 6.125" production interval from 12,639'to 13,446' MD. 250 GPM, 2070 psi on, 1943 psi off. -60 RPM, 9-10K Tq on, 7K Tq off. -PU 197 K, SO 131 K, ROT 165K. -Actual Rotate Time = 3.13 Hours. -Actual Slide Time = 3.98 Hours. -Survey every 30', backream 90' prior to connections. PROD1 Drill 6.125" production interval from 13,446'to 14,168' MD. 250 GPM, 2150 psi on, 1940 psi off. -60 RPM, 9-10K Tq on, 6-7K Tq off. -PU 210K, SO 104K, ROT 163K. -Actual Rotate Time = 3.13 Hours. -Actual Slide Time = 4.82 Hours. -Survey every 30', backream 90' prior to connections. PROD1 Continue to drill 6.125" production hole to 14,301' MD -250 GPM, 2110 psi on 1890 psi off. -60 RPM, 6-7K Tq off, 9-10.5K Tq on. -PU 197 K, SO 130K, ROT 163K. -Actual Rotate Time = .28 Hours. -Actual Slide Time = 1.17 Hours. -Survey every 30', backream 90' prior to connections. 04:30 - 05:00 0.50 DRILL N DFAL PROD1 Bit stalled and pressure increased. -Immediately pick up off bottom -Pressure continued to spike to 4000+ psi. Panted: 1/19/2009 4:16:41 F'M • ~ gP Page 12 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date j From - To ', Hours ~ Task I Code NPT ~ Phase Description of Operations ~ __ __ _ 1/2/2009 ~ 04:30 - 05:00 _ 0.50 DRILL N DFAL PROD1 -Unable to circulate (did not inject any fluid) -Work pipe and re-esta i sh circulation. -176 GPM, 2350 psi. -Backream 1 stand; continued to see pressure spikes. -Stop circulation and rotation. 05:00 - 08:00 3.00 DRILL N DFAL PRODi Trip out of hole to shoe at 10,493' MD. -PU 200K, SO 150. -Monitor Well 9 bbls/hr to 08:00 - 09:00 1.00 DRILL N DFAL PRODi Break Circulation at 100 GPM, 3200 psi. -Drop ball and open Circulation Sub, pump 100 GPM ~ 1535 psi. -Spot 30 bbl LCM Pill at Shoe. -Pump a dry job. 09:00 - 14:00 5.00 DRILL N DFAL PROD1 Continue to trip out of hole from 10,493' to 286'. -Loss 43 bbls to fomation durin tri out of hole. 14:00 - 16:30 2.50 DRILL N DFAL PROD1 Lay down 6.125" drilling BHA. -Stator failed in mud motor. -Three jets inside bit plugged with rubber. -Bit Graded: 0-1-CT-T-X-I-PN-DTF 16:30 - 18:00 1.50 DRILL P PROD1 Flush stack Make up 4" test joint for BOP test. Rig up testing equipment. 18:00 - 00:00 6.00 DRILL P PROD1 Test BOP's with 4" and 4.5" test joints.. -Test from 250 psi low to 3500 psi high. -Test witness waived by AOGCC rep Chuck Sheave. -Test witnessed by BP WSL Kris Honas and Nabors Tool Pusher Brian Tiedemann. 1/3/2009 00:00 - 01:30 1.50 DRILL P PRODi Finish testing BOP's. Rig down testing equipment. 40 bbls lost to formation durin BOP testin ; __ 01:30 - 04:00 2.50 DRILL N DFAL PROD1 PJSM with L ,rig hands and WSL. Make up 6.125" drilling BHA with new roller cone insert bit, and motor as wells as DIR/GR/RES/DEN/NEU ,stabilizers, NM drill collars, and jars. 04:00 - 10:00 6.00 DRILL N DFAL PRODi RIH with 6.125" drilling BHA to 1030' MD. -Shallow hole test MWD tools. Continue to RIH to 10,345' MD. 10:00 - 11:30 1.50 DRILL P PRODi Slip/cut 80' of drilling line. 11:30 - 12:00 0.50 DRILL P PROD1 Service top drive. 12:00 - 16:00 4.00 DRILL N PROD1 Continue to RIH with 6.125" drilling BHA to 14,301' MD. -PU 203K, SO 150K. -Wash down from 14,168'to 14301' MD, 250 GPM ~ 1953 PSI, 60 RPM. 16:00 - 00:00 8.00 DRILL P PRODi Drill 6.125" production hole to 14,594' MD -250 GPM, 1946 psi on, 1821 psi off. -50 RPM, 8K Tq off, 10-11 K Tq on. -PU 200K, SO 130K, ROT 165K. -Actual Rotate Time = 1.48 Hours. -Actual Slide Time = 2.26 Hours. -Survey every 30', backream 90' prior to connections. rnnteo: v i aiz~~a v. ~ 0:4 i rm ~ ~ gp Page 13 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours Task Code NPT Phase Description of Operations 1/3/2009 16:00 - 00:00 8.00 DRILL P PROD1 150 bbl lost to formation for the day.; 1/4/2009 00:00 - 02:00 2.00 DRILL P PROD1 Drill 6.125" production hole to 14,820' MD.- -250 GPM, 1975 psi on, 1850 psi off. -60 RPM, 8K Tq off, 11 K Tq on. -PU 200K, SO 130K, ROT 165K. -Dynamic loss rate while drilling: 10 bbl/hr. -14 820' MD C~ 02:00. 02:00 - 02:30 0.50 DRILL P PROD1 Circulate 1 OH Volume. -250 GPM, 1800 psi, 60 rpm, TO 8k. Monitor well: Static -Mud Weight in/out 8.7ppg 02:30 - 16:00 13.50 DRILL P PROD1 Back ream/ MAD pass out of hole from 14,820' to 12,354' MD. -250 GPM, 102 SPM, 1690 psi, 60 rpm, TO 5.5K, 600 ft/hr. 16:00 - 17:00 1.00 DRILL P PROD1 Pump out of hole from 12,354' to 10,493'MD -250 GPM, 1560 psi, PU 190K. Monitor well: Static 17:00 - 19:00 2.00 DRILL P PROD1 Circulate 1 bottoms up. -250 GPM, 102 SPM, 1579 psi, 50 RPM, TO 4.5k, Drop 1 7/8" Ball PMP on Seat. -161 GPM, 66 SPM, 807 psi. -Circulating sub sheard ~ 2145 PSI. Pump Dry Job. 19:00 - 00:00 5.00 DRILL P PROD1 Continue to pull out of hole to 286' MD. -PU 200K, SO 160K. Total mud loss to formation for 24 hrs: 82 bbls. 1/5/2009 00:00 - 01:30 1.50 DRILL P PROD1 Lay down 6.125" drilling BHA including: -Insert roller cone bit, 1.5 degree bent motor, DIR/GR/RES/DEN/NEU, stabilizer, flex collars, and jars. Bit graded: 1-1-WT-A-E-I-NO-TD. 01:30 - 02:00 0.50 DRILL P PROD1 Clean and clear the rig floor. Service the top drive. 02:00 - 05:00 3.00 CASE P RUNPRD Rig up to run 4.5" 12.6 Ib/ft, 13Cr-80, Vam Top tubing. -Change out bails to long bails. -Rig up compensator. -Rig up torque turn tools. PJSM with Baker, rig crew, and WSL for running liner. 05:00 - 06:00 1.00 CASE N WAIT RUNPRD Elevators would not latch onto 4.5" liner. -Expedite new elevators to location. 06:00 - 15:00 9.00 CASE P RUNPRD IH with 4.5" 12.6# 13Cr-80, Vam Top liner. -Baker lock all shoe joints. -Check floats: Good -Make up all Vam Top connections to 4440 ft-Ibs (optimal). -Fill each joint. rnnzea: viaicvua 4:10:41 nvi ~ ~ gP Page 14 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABORS 9ES Rig Number: 9ES Date From - To Hours Task Code NPT Phase Description of Operations 1/5/2009 06:00 - 15:00 9.00 CASE P RUNPRD -50 ft/min running speed. -2 centralizers perjoint. -Torque turn each connection. Losing displacement to formation. 15:00 - 17:00 2.00 CASE P RUNPRD Change out bails and rig down compensator. 17:00 - 18:00 1.00 CASE P RUNPRD Pick up the 5"x7" Baker ZXP liner top packer with HMC liner hanger and HRD liner running tool. -Mix and add PAL-MIX and wait for it to gel (30 minutes). 18:00 - 18:30 0.50 CASE P RUNPRD Circulate one liner volume (67 bbls). -210 GPM, 410 psi. -PU 87K, SO 80K. 18:30 - 00:00 5.50 CASE P RUNPRD RIH with 4.5" liner on 4" drill i e to 9473' MD. -45 ft/min running speed. -Fill pipe every 10 stands. Total losses to formation for 24 hrs: 80 bbls Mud weight: 8.7 1/6/2009 00:00 - 00:30 0.50 CASE P RUNPRD Continue to RIH with 4.5", 12.6#, 13Cr-80, Vam Top liner on 4" drill pipe to 10,421' MD. 00:30 - 01:30 1.00 CASE P RUNPRD Circulate bottoms up at the 7" shoe. -5 bpm, 780 psi. 01:30 - 02:00 0.50 CASE P RUNPRD Make up swivel cement head to a single of 4" drill pipe. -Set cement head and single back on skate for later use. 02:00 - 06:00 4.00 CASE P RUNPRD Run into open hole with 4.5", 12.6#, 13Cr-80, Vam Top liner. -Make up cement head and single to 4" drill pipe. -RIH and taq TD at 14,820' MD. Losin dis lacement to formation. 06:00 - 09:30 3.50 CEMT P RUNPRD Break circulation. Stage pumps up to 5 bpm, 1240 psi. Condition mud for cementing. Held cementing PJSM while circulating. Reciprocate liner. PU - 200k, SO - 140k. Batch up cement ~' 09:30 - 11:00 1.50 CEMT P RUNPRD Switch over to Schlumberger. Pump 5 bbls 11.5ppg MudPush. Pressure test lines to 4500 psi. Open back up and pump 21.5 additional bbls 11.5ppg MudPush. Mix and pump 109 bbls 15.8 ppg Class G cement @ 2-4 bpm 1000-200 psi. Swap to rig pumps. Drop plug; chase plug with 65 bbls pert pill followed by 103 bbls 8.7ppg FloPro mud. Rg~rocate liner throughout cement iob. PU - 200k, SO - 100k. Note: No clear indication of wiper plug latch-up at liner top. Plug did not bump; continued to pump until strokes ~ 93% pump efficiency. Cement in place ~ 11:10am. 11:00 - 15:00 4.00 CEMT P RUNPRD Bleed ressure and check floats - OK. Emergency release and set packer as per Baker representative. P/U to ensure running tool is released. Circulate out cement at max pump rate, 52 bbls of cement contaminated mudpush returns. Density of returns measured as high as 12.5 ppg. 15:00 - 19:30 4.50 CASE P RUNPRD POOH with 4" DP, monitor well. Pump dry job rnrrcea: viaieuua v:i°:wi rm ~ ~ gp Page 15 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To 'Hours Task Code I NPT Phase ~ Description of Operations 1/6/2009 15:00 - 19:30 4.50 CASE P RUNPRD -PU 194K, SO 152K Prep Baker clean-out assy; strap and drift 2-7/8" Fox tbg for cleanout run. 19:30 - 20:30 1.00 CASE P RUNPRD Lay down liner running tool. Dog sub sheared on liner running tool. 20:30 - 21:00 0.50 CASE P RUNPRD Service Top Drive, Crown, & Draworks. 21:00 - 00:00 3.00 CEMT N DPRB RUNPRD Load pipeshed w/ 2-7/8" Fox tbg. Strap pipe and prepare for cleanout run. 1/7/2009 00:00 - 05:30 5.50 CEMT N DPRB RUNPRD Pick u 3.8" mill assemb~;. 3.8" mill, Baker extreme motor and circ. sub. Pick up 4409' of 2-7/8" Fox tbg singles. 05:30 - 06:00 0.50 CEMT N DPRB RUNPRD Pick up 7" casing scraper and crossovers, prepare to RIH with 4" DP 06:00 - 10:00 4.00 CEMT N DPRB RUNPRD RIH with stands of 4" DP from 4580' to 10,332' and 3.8" mill and cleanout assembly. Stop RIH and rotate at 20 RPM to determine torque readings, so as not to exceed FOX makeup torque while cleaning out cement. ~ 10,095' Qust above liner), torque = 3200ft-Ibs 10:00 - 16:30 6.50 CEMT N DPRB RUNPRD Continue RIH from 10,332' to 14,728' Slow down running speed to -12ft/min once in liner to avoid sticking pipe in green cement that may be present. Stop RIH and rotate at 20 RPM to get another torque reading, so as not to exceed FOX makeup torque while cleaning out cement. ~ 10,578' Qust below liner lap), torque = 3000ft-Ibs 16:30 - 17:00 0.50 CEMT N DPRB RUNPRD Ta u on wi er lu and cement to at 1 '. Landing collar at 14,734'. Since planned bottom shot is at 14,700', no cleanout is necessary. 17:00 - 18:00 1.00 CEMT P RUNPRD PU to 14684' for pressure test. Pressure test liner: 3500 psi for 30 min. Excellent test. Pressure recorded every 10 strokes during buildup. Pressure test: 3440psi ~ 5min 3430psi ~ 15min 3430psi ~ 30min 18:00 - 19:00 1.00 CEMT N DPRB RUNPRD Drop 3/4" ball to open Baker circ sub. Circulate 3x annular volume of liner x 2-7/8" before spotting pert pill in liner. 19:00 - 20:00 1.00 CEMT N DPRB RUNPRD Spot 50bb1 pert pill, followed by mud spacer (62bb1) and weighted pill (20bb1); weighted pill positioned to allow fluid to fall out (rather than be pumped) of the pipe while POOH. 20:00 - 00:00 4.00 CEMT N DPRB RUNPRD POOH with DP and cleanout assembly. Allow pert pill to fall into liner while pulling pipe. POOH to liner top, racking back 4" drill pipe. Once liner top reached at 10,332', pump through circ sub to remove any remaining debris or cement from 7" casing and clean liner top. rnncea: u i arzuun w: i o:v i rm gp Page 16 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To ~ Hours Task ~' Code NPT ~ Phase Description of Operations 1/7/2009 20:00 - 00:00 4.00 CEMT N DPRB RUNPRD Pump at max rate, reciprocating and rotating pipe to prevent casing washout. CBU x 1.5 - 334 gpm - 1791 psi - 20 RPM MI Swaco on location with seawater for 7" casing displacement. 1/8/2009 00:00 - 02:00 2.00 CEMT N DPRB RUNPRD Pumping rough circ sub, displace 7" casing volume to 8.5ppg seawater to prep for pert job. Displace at 270 gpm, 3100 psi. PU 150k, SO 130k 02:00 - 03:00 1.00 CEMT P RUNPRD Slip and cut drilling line, service top drive. 03:00 - 04:30 1.50 CEMT N DPRB RUNPRD Pump dry job. POOH from liner top ~ 10,332' to 9,053'. Rack back 4" DP in an "L" in preparation for racking back 2-7/8" FOX. 04:30 - 07:00 2.50 CEMT P RUNPRD Begin laying down remaining 4" HWDP and DP from 9,053' to 6,027'. 07:00 - 10:00 3.00 CEMT N RREP RUNPRD Trouble shoot pipe skate. Discovered hydraulic leak on valve body, failed O-ring. Locate and change O-ring. 10:00 - 11:00 1.00 CEMT P RUNPRD PJSM. Rig up belly rope in preparation for racking back 2-7/8" FOX. 11:00 - 14:00 3.00 CEMT P RUNPRD Continue to POOH from 6,027' to 4,438 ;finish laying down 4" DP and HWDP. Lay down a total of 7 stands of HWDP and 42 stands of DP. 14:00 - 15:00 1.00 CEMT N DPRB RUNPRD Break out and lay down 7" casing scraper and crossovers. 15:00 - 17:30 2.50 CEMT N DPRB RUNPRD PJSM. Rig up to lay down 2-7/8" FOX tubing; POOH from 4,438' to 3,150' with FOX tubing, laying down 38 joints. 17:30 - 20:00 2.50 CEMT P RUNPRD PJSM. POOH from 3,150' to rig floor, racking back FOX tubing. Use belly rope to prevent tubing from bowing towards the rig floor. Stand back a total of 35 stands; tie off belly rope to secure pipe in derrick until perforating run. 20:00 - 22:00 2.00 CEMT N DPRB RUNPRD Break out and lay down cleanout assembly: 3.8" mill, Baker extreme motor and circ. sub. Recover 3/4" steel ball from circ sub. Remove running tools from floor. 22:00 - 23:00 1.00 PERFO P OTHCMP RU for perforation run. Change out to 3.5" elevators, prep rig floor with lifting subs, firing head and crossovers. 23:00 - 00:00 1.00 PERFO P OTHCMP PJSM with Schlumberger perforating crew. Begin running in with 2-7/8" PowerJet Omega pert guns; 6spf. RIH from rig floor to 624' 1/9/2009 00:00 - 01:00 1.00 PERFO P OTHCMP PJSM, Pick up 2-7/8" PowerJet Omega pert guns. RIH„_with 40 01:00 - 02:00 1.00 PERFO P 02:00 - 03:30 1.50 PERFO P 03:30 - 11:30 8.00 PERFO P 11:30 - 13:30 I 2.00 PERFOB, P OTHCMP LD Schlumberger perforating running tools. RU to run 2-7/8" tubing. OTHCMP RIH With Perf Guns and 2-7/8" FOX tbg from 1,247' to 4,504'. Utilize belly rope to handle 2-7/8" FOX. OTHCMP Change out elevators, RU to run 4" DP. RIH with Perf Guns, 2-7/8" FOX tbg and 4" DP from 4,504' to 14,700'. Reduced speed when entering liner top C~ 10,327' MD so as not to damage gun assembly. OTHCMP Tag up ~ 14728' MD, PU to pert depth ~ 14700'. PJSM. rnncea: viaizuua 4:10:91 rm • g P Page 17 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To 'Hours Task Code I NPT ' Phase Description of-0perations - - - ._ 1/9/2009 11:30 - 13:30 2.00 PERFO P OTHCMP Perform practice run to establish pressure settings for perforation assembly; fire pert guns. Guns fired at 13:13 hrs. - Good indication on surface that all guns fired. 3 bbl initial fluid 13:30 - 14:30 1.00 PERFO P OTHCMP POH one stand, blow down top drive. Pull another 13 stands, so deepest pert gun is clear of top pert ~ 13,442' MD. 14:30 - 16:00 1.50 PERFO P OTHCMP POH additional 1000', reciprocate and circulate 1 x bottoms up. Losing fluid to formation• approx 15bbls/hr in first three hours, after perforating. 16:00 - 00:00 8.00 PERFO P OTHCMP Pump dry job. POOH, laying down singles of 4" DP. Continuing losses to formation, at approx. 2-3bbls/hr. LD all remaining DP, from 12,442 to 4,508. 1/10/2009 00:00 - 01:00 1.00 PERFO P OTHCMP Change out elevators to lay down 2-7/8" FOX tubing. RD belly rope. 01:00 - 05:00 4.00 PERFO P OTHCMP LD 105 joints of 2-7/8" FOX, from 4,508' to 1,262'. Continuing to experience losses at around 2-3bbl/hr. 05:00 - 09:00 4.00 PERFO P OTHCMP PJSM with Schlumberger perforating crew. POOH with pert guns. from 1,262' to rig floor. Lay down and inspect guns; all shots fired. RD perforating equipment, clean and clear rig floor. 09:00 - 13:00 4.00 BUNCO RUNCMP RU torque turn equipment and elevators. Bring tubing jewelry into pipe shed and visually inspect completion components. 13:00 - 00:00 11.00 BUNCO RUNCMP PJSM. RIH w/ 4 1/2" 12.6# 13CR-80 Vam-Top completion from rig floor to 7,920'. Baker-Lok connections from WLEG to production packer. Torque-turn every connection; utilize compensator for picking up joints. 1/11/2009 00:00 - 01:30 1.50 BUNCO RUNCMP RIH w/ 4 1/2" 12.6# 13CR-80 Vam-Top completion from 7,920' to 10,332'. Torque-turn every connection to 4400 ft-Ibs; .utilize compensator for picking up joints, lightly dope pins only with Jet Lube Seal Guard. Slow running speed when entering tieback sleeve. No losses to formation. 01:30 - 03:00 1.50 BUNCO RUNCMP Ta u on de th. PU 20', re eat to u to confirm. Spaceout tubing using five-foot stick; LD top three joints, add 19.87' and 5.8' pup joints to completion assy. in order to land tubing ~ 10,338' with WLEG 5.28' up from bottom of tieback sleeve at 10,344' MD. PU jt 239, hanger pup, tubing hanger and landing jOlnt. I ^nd h^^~pr 100k Srlt%han IanrlaA 03:00 - 03:30 0.50 BUNCO RUNCMP Run in lockdown screws and torque to 450ft-Ibs. Rig down casing running equipment; clean and clear rig floor. Confirm proper number of tubing joints remaining in pipe shed (4 joints of 4.5" VamTop tbg remaining). 03:30 - 06:00 2.50 BUNCO RUNCMP Establish circulation. Prep corrosion inhibitor and reverse circulate to spot corrosion inhibitor from DCK shear to production packer. Pump 157bb1s 8.5 ppg clean seawater without corrosion inhibitor followed by 59bbls of clean seawater with corrosion inhibitor and 131 bbls clean seawater without corrosion inhibitor. Pumped at no more than 3 bpm to avoid eroding packer elements. 06:00 - 08:30 2.50 BUNCO RUNCMP Dro 1-7/8" ball and rod no rollers .Pressure up to set packer; Hold pressure and test tubing to 3500psi: good test. Bleed down tubin to 2100 si• ressure u annulus to 3500psi to test; ood test. Bleed both to zero then pressure up annulus an shear DCK valve. DCK valve in GLM#3 ~ 7,082'MD; sheared at 2300psi. Establish circulation through DCK valve: 3bpm ~ rnrneu: v~aicvva v.iv.~~ rm • gP Page 18 of 18 Operations Summary Report Legal Well Name: R-41 Common Well Name: R-41 Spud Date: 12/17/2008 Event Name: DRILL+COMPLETE Start: 12/15/2008 End: 1/12/2009 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 1/11/2009 Rig Name: NABOBS 9ES Rig Number: 9ES Date From - To Hours Task Code NPT Phase Description of Operations 1/11/2009 06:00 - 08:30 2.50 BUNCO RUNCMP 1000psi reverse circulating, 3bpm f~ 1090psi circulating. Pressure test readings: Tbg test: 3550psi ~ Omin, 3490psi ~ 15min, 3490psi ~ 30min. Annulus test: 3575psi ~ Omin, 3550psi C~ 15min, 3550psi ~ 30min. 08:30 - 12:00 3.50 BOPSU P RUNCMP Dry-rod in TWC and test from below to 1000 si. ND BOPs. 12:00 - 17:00 5.00 WHSUR P RUNCMP NU tree and adaptor. Test adaptor, tree and packoff to 5000psi. Good test. 17:00 - 18:00 1.00 W HSUR P RUNCMP RU Lubricator and pull TWC prior to freeze protect. 18:00 - 23:00 5.00 WHSUR P RUNCMP Reverse circulate 80bbls diesel down annulus; allow diesel to U-tube into the tubing via the tree. 23:00 - 00:00 1.00 WHSUR P RUNCMP RU lubricator and install BPV. Test BPV from below to 1000 si; good test. Secure and release rig at 1/12/09, 23:59hrs; release rig to M-196 rnnceu: viaicuua v.io.yi ~~~~ ~? f R-41 Survey Report Schlumberger Report Date: 4-Jan-09 Client: Shared Services Drilling Field: Prudhoe Bay Unit - WOA Structure /Slot: R-PAD / R-41 Well: R-41 Borehole: R-41 UWUAPI#: 500292339900 Survey Name /Date: R-41 /January 4, 2008 Tort /AHD / DDI / ERD ratio: 316.338° / 9922.66 ft / 6.724 / 1.122 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Location LaULang: N 70.34527880, W 148.90871304 Location Grid N/E Y/X: N 5977065.520 ftUS, E 634442.220 ftUS Grid Convergence Angle: +1.02771901° Vertical Section Azimuth: 289.620° Vertical Section Origin: N 0.000 ft, E 0.000 ft TVD Reference Datum: Rotary Table TVD Reference Elevation: 47.00 ft relative to MSL Sea Bed /Ground Level Elevation: 18.50 ft relative to MSL Magnetic Declination: 22.826° Total Field Strength: 57689.204 nT Magnetic Dip: 80.921 ° Declination Date: December 22, 2008 Magnetic Declination Model: BGGM 2008 North Reference: True North Total Corr Mag North -> True North: +22.826° Local Coordinates Referenced To: Well Head `J Comments Measured Inclination Azimuth SulrSea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure tt de de ft ft ft ft ft ft ft de 00 ft ftUS ftUS ft~t U.VU V.VV U. VU -4/.VU U.UV U.UU V.UU V.UV V.VV V.VU U.VU Jy//UOa.JC OJ~i4~iL.GL IV /V.34JG/08U VV 148. ~V0/ IJV4 GYD GC SS 100.00 0.17 152 .76 53.00 100.00 -0.11 0.15 0.15 -0.13 0.07 0.17 5977065.39 634442.29 N 70.34527844 W 148. 90871249 186.00 0.30 170 .81 139.00 186.00 -0.31 0.50 0.49 -0.47 0.16 0.17 5977065.06 634442.39 N 70.34527752 W 148. 90871172 288.00 0.13 245 .39 241.00 288.00 -0.36 0.84 0.79 -0.78 0.10 0.29 5977064.74 634442.33 N 70.34527667 W 148. 90871223 376.00 1.08 290 .92 328.99 375.99 0.55 1.74 0.93 -0.52 -0.77 1.13 5977064.98 634441.46 N 70.34527736 W 148. 90871925 483.00 3.77 308 .03 435.89 482.89 4.89 6.25 4.91 2.00 -4.48 2.58 5977067.44 634437.71 N 70.34528427 W 148. 90874939 563.00 6.65 307 .73 515.55 562.55 11.79 13.51 12.09 6.46 -10.22 3.60 5977071.79 634431.89 N 70.34529644 W 148. 90879595 MWD+IFR+MS 576.28 7.23 305 .85 528.73 575.73 13.32 15.12 13.69 7.42 -11.50 4.69 5977072.73 634430.59 N 70.34529907 W 148. 90880638 667.02 10.89 309 .63 618.33 665.33 26.87 29.40 27.94 16.23 -22.73 4.08 5977081.34 634419.20 N 70.34532315 W 148. 90889755 759.54 12.50 309 .81 708.92 755.92 44.48 48.15 46.66 28.22 -37.16 1.74 5977093.07 634404.56 N 70.34535589 W 148. 90901461 849.32 11.75 304 .25 796.70 843.70 62.44 66.99 65.49 39.58 -52.18 1.55 5977104.16 634389.34 N 70.34538694 W 148. 9091 946.16 13.03 301 .50 891.28 938.28 82.67 87.77 86.22 50.84 -69.64 1.46 5977115.10 634371.69 N 70.34541768 W 148. 3 90927 1040.97 15.76 302 .56 983.11 1030.11 105.68 111.33 109.74 63.35 -89.61 2.89 5977127.25 634351.50 N 70.34545188 W 148. 909440 1138.46 17.35 302 .25 1076.56 1123.56 132.77 139.11 137.49 78.24 -113.06 1.63 5977141.71 634327.78 N 70.34549253 W 148 .90963064 1232.15 18.47 300 .38 1165.70 1212.70 160.98 167.92 166.26 93.20 -137.68 1.34 5977156.23 634302.90 N 70.34553340 W 148 .90983045 1329.38 19.58 298 .58 1257.62 1304.62 192.21 199.61 197.86 108.78 -165.27 1.29 5977171.31 634275.04 N 70.34557598 W 148 .91005441 1417.28 21.85 298 .11 1339.83 1386.83 222.94 230.70 228.85 123.54 -192.64 2.59 5977185.57 634247.41 N 70.34561628 W 148 .91027651 1517.41 23.64 298 .00 1432.17 1479.17 261.23 269.42 267.45 141.74 -226.80 1.79 5977203.16 634212.93 N 70.34566602 W 148 .91055379 1613.04 24.48 298 .66 1519.50 1566.50 299.77 308.40 306.37 160.25 -261.12 0.92 5977221.04 634178.29 N 70.34571657 W 148 .91083230 1709.54 25.04 297 .98 1607.12 1654.12 339.72 348.82 346.73 179.42 -296.70 0.65 5977239.57 634142.38 N 70.34576893 W 148 .91112107 1806.82 27.05 297 .76 1694.52 1741.52 381.99 391.53 389.38 199.38 -334.46 2.07 5977258.85 634104.27 N 70.34582347 W 148 .91142753 1901.80 30.77 298 .89 1777.65 1824.65 427.36 437.44 435.25 221.19 -374.85 3.96 5977279.93 634063.49 N 70.34588303 W 148 .91175542 1997.56 33.94 298 .69 1858.53 1905.53 477.95 488.68 486.46 245.86 -419.76 3.31 5977303.79 634018.15 N 70.34595043 W 148 .91211992 SurveyEditor Ver SP 2.1 Bld( doc40x_100) R-41\R-41\R-41\R-41 Generated 2/2/2009 3:31 PM Page 1 of 7 Comments Measured Inclination Azimuth Subsea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de OOft ftUS ftUS 2U93.t3U 3/.Uti 15ti. y/ ly:i(i.t3ti lyti:i.tifi 5:i;i.1L 544.5/ 54"L.:i4 L/L.ti"L -4(itS./;i :i.L/ by//:iLy.tifi Ei:i3ytit3./1 N /U.:i4(iU14U/ W 14tt. y1"Lb1/3L 2189.70 37.65 300. 20 2013.08 2060.08 590.44 602.77 600.54 301.55 -519. 33 0.98 5977357.69 633917.60 N 70.34610257 W 148. 91292809 2285.30 37.15 300. 22 2089.03 2136.03 647.51 660.83 658.60 330.77 -569. 51 0.52 5977386.00 633866.91 N 70.34618237 W 148. 91333537 2378.88 38.04 301. 17 2163.18 2210.18 703.54 717.92 715.69 359.92 -618. 60 1.13 5977414.25 633817.31 N 70.34626199 W 148. 91373381 2474.70 39.50 299. 43 2237.89 2284.89 762.50 777.92 775.68 390.17 -670. 41 1.90 5977443.58 633764.98 N 70.34634463 W 148. 91415431 2570.95 39.57 298. 12 2312.12 2359.12 822.98 839.19 836.93 419.66 -724. 11 0.87 5977472.10 633710.76 N 70.34642519 W 148. 91459018 2667.42 36.75 297. 92 2387.96 2434.96 881.94 898.79 896.49 447.67 -776. 72 2.93 5977499.15 633657.66 N 70.34650167 W 148. 91501722 2762.14 38.17 295. 69 2463.15 2510.15 939.09 956.39 954.01 473.62 -828. 14 2.07 5977524.18 633605.79 N 70.34657257 W 148. 91543458 2857.46 38.79 295. 72 2537.77 2584.77 998.07 1015.70 1013.18 499.35 -881. 58 0.65 5977548.94 633551.90 N 70.34664283 W 148. 91586837 2952.42 37.67 295. 47 2612.36 2659.36 1056.51 1074.46 1071.81 524.74 -934. 58 1.19 5977573.37 633498.46 N 70.34671217 W 148. 91629852 3049.26 38.26 294. 99 2688.71 2735.71 1115.80 1134.04 1131.24 550.13 -988. 47 0.68 5977597.79 633444.13 N 70.34678152 W 148. 916 3146.57 40.72 296. 56 2763.81 2810.81 1177.31 1195.91 1193.02 577.05 -1044. 18 2.73 5977623.71 633387.95 N 70.34685506 W 148. 7 9171 3243.23 40.34 297. 43 2837.27 2884.27 1239.61 1258.73 1255.80 605.56 -1100. 15 0.70 5977651.21 633331.48 N 70.34693292 W 148. 91764247 3338.46 39.38 297. 04 2910.37 2957.37 1300.10 1319.76 1316.81 633.50 -1154. 41 1.04 5977678.16 633276.73 N 70.34700921 W 148. 91808296 3431.87 40.06 298. 16 2982.22 3029.22 1359.21 1379.45 1376.49 661.15 -1207. 31 1.06 5977704.86 633223.35 N 70.34708475 W 148. 91851233 3527.58 39.49 297. 90 3055.78 3102.78 1419.79 1440.68 1437.72 689.93 -1261. 36 0.62 5977732.66 633168.80 N 70.34716334 W 148. 91895107 3621.99 39.39 297. 22 3128.69 3175.69 1479.19 1500.66 1497.68 717.68 -1314. 53 0.47 5977759.45 633115.14 N 70.34723912 W 148. 91938267 3717.77 39.22 296. 58 3202.81 3249.81 1539.37 1561.33 1558.32 745.13 -1368. 63 0.46 5977785.92 633060.56 N 70.34731409 W 148. 91982187 9-5/8" Cam? 3903'md 3813.88 39.26 296. 44 3277.24 3324.24 1599.73 1622.13 1619.08 772.27 -1423. 04 0.10 5977812.08 633005.68 N 70.34738819 W 148. 92026350 3998.18 38.71 296. 97 3420.50 3467.50 1714.79 1738.07 1734.97 824.37 -1526. 61 0.35 5977862.31 632901.19 N 70.34753048 W 148. 92110431 4092.33 38.74 296. 10 3493.95 3540.95 1773.26 1796.97 1793.84 850.68 -1579. 31 0.58 5977887.67 632848.04 N 70.34760233 W 148. 92153206 4189.11 38.03 296. 08 3569.82 3616.82 1832.97 1857.06 1853.89 877.11 -1633. 28 0.73 5977913.13 632793.61 N 70.34767450 W 148. 92197018 4284.18 37.64 296. 09 3644.90 3691.90 1890.91 1915.38 1912.17 902.75 -1685. 65 0.41 5977937.82 632740.78 N 70.34774452 W 148. 92239535 4377.92 38.06 296. 30 3718.92 3765.92 1948.05 1972.90 1969.65 928.14 -1737. 26 0.47 5977962.28 632688.73 N 70.34781385 W 148. 92281432 4472.72 37.90 297. 30 3793.64 3840.64 2005.93 2031.24 2027.98 954.44 -1789. 34 0.67 5977987.64 632636.20 N 70.34788567 W 148. 92323703 4568.76 38.21 297. 18 3869.27 3916.27 2064.61 2090.44 2087.17 981.54 -1841. 97 0.33 5978013.79 632583.09 N 70.34795966 W 148. 92366432 4666.96 37.74 297. 46 3946.68 3993.68 2124.49 2150.86 2147.59 1009.27 -1895. 66 0.51 5978040.55 632528.92 N 70.34803538 W 148. 92410013 4759.57 38.38 298. 81 4019.59 4066.59 2180.95 2207.95 2204.68 1036.20 -1946. 00 1.13 5978066.57 632478.11 N 70.34810891 W 148. 9245 4856.21 37.99 299. 46 4095.56 4142.56 2239.87 2267.69 2264.41 1065.28 -1998. 18 0.58 5978094.71 632425.42 N 70.34818833 W 148. 0 9249 4949.38 38.88 299. 77 4168.54 4215.54 2296.91 2325.61 2322.31 1093.90 -2048. 53 0.98 5978122.42 632374.57 N 70.34826648 W 148. 92534 5047.73 38.65 300. 79 4245.22 4292.22 2357.42 2387.19 2383.84 1124.95 -2101. 71 0.69 5978152.51 632320.85 N 70.34835126 W 148. 92577293 5144.44 38.07 300. 57 4321.06 4368.06 2416.32 2447.21 2443.80 1155.58 -2153. 32 0.62 5978182.20 632268.69 N 70.34843488 W 148. 92619199 5241.12 37.98 298 .35 4397.22 4444.22 2474.99 2506.76 2503.33 1184.86 -2205 .17 1.42 5978210.55 632216.33 N 70.34851485 W 148. 92661291 5337.31 38.18 296 .41 4472.94 4519.94 2533.77 2566.08 2562.65 1212.14 -2257 .85 1.26 5978236.87 632163.18 N 70.34858933 W 148. 92704055 5433.06 37.90 295 .24 4548.35 4595.35 2592.43 2625.08 2621.60 1237.85 -2310 .95 0.81 5978261.62 632109.63 N 70.34865951 W 148. 92747170 5528.12 37.54 296 .10 4623.54 4670.54 2650.26 2683.24 2679.70 1263.04 -2363 .37 0.67 5978285.86 632056.77 N 70.34872828 W 148. 92789725 5623.11 37.09 295 .45 4699.09 4746.09 2707.51 2740.82 2737.23 1288.08 -2415 .22 0.63 5978309.97 632004.48 N 70.34879665 W 148. 92831822 5719.00 37.83 295 .78 4775.20 4822.20 2765.51 2799.14 2795.50 1313.29 -2467 .81 0.80 5978334.23 631951.45 N 70.34886548 W 148. 92874516 5811.22 38.55 296 .64 4847.69 4894.69 2822.15 2856.16 2852.49 1338.48 -2518 .96 0.97 5978358.50 631899.86 N 70.34893424 W 148. 92916044 5909.29 38.88 296 .84 4924.21 4971.21 2883.01 2917.49 2913.81 1366.07 -2573 .74 0.36 5978385.10 631844.60 N 70.34900959 W 148. 92960517 6006.49 39.18 296 .95 4999.71 5046.71 2943.73 2978.70 2975.01 1393.76 -2628 .33 0.32 5978411.81 631789.53 N 70.34908518 W 148. 93004837 SurveyEditor Ver SP 2.1 Bld( doc40x_100) R-41\R-41\R-41\R-41 Generated 2/2/2009 3:31 PM Page 2 of 7 Comments Measured Inclination Azimuth SulrSea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 00 ft ftUS ftUS 6099.94 38.Ll 195. 8U 50/1.65 5119.65 3001./4 303/.12 3033.41 1419.7E -2680. 67 1.29 5978436.8E 631736. 74 N 70.34915604 W 148.93047328 6196.91 36.52 294. 13 5149.72 5196.72 3060.33 3095.97 3092.18 1444.57 -2734. 00 2.03 5978460.71 631682. 97 N 70.34922388 W 148.93090633 6288.59 35.44 292. 81 5223.91 5270.91 3114.06 3149.83 3145.88 1466.03 -2783. 40 1.45 5978481.28 631633. 20 N 70.34928245 W 148.93130739 6385.53 35.00 292. 55 5303.10 5350.10 3169.89 3205.74 3201.57 1487.59 -2834. 99 0.48 5978501.90 631581. 24 N 70.34934129 W 148.93172619 6481.29 35.99 294. 46 5381.07 5428.07 3225.36 3261.33 3257.02 1509.77 -2885. 96 1.55 5978523.17 631529. 88 N 70.34940184 W 148.93214007 6578.99 36.01 294. 74 5460.11 5507.11 3282.57 3318.76 3314.37 1533.68 -2938. 18 0.17 5978546.13 631477. 25 N 70.34946709 W 148.93256400 6675.77 36.60 297. 08 5538.11 5585.11 3339.51 3376.06 3371.64 1558.72 -2989. 71 1.56 5978570.24 631425. 28 N 70.34953545 W 148.93298238 6769.30 36.63 298. 08 5613.18 5660.18 3394.76 3431.84 3427.42 1584.54 -3039. 15 0.64 5978595.17 631375. 39 N 70.34960595 W 148.93338383 6863.46 36.08 297. 19 5689.01 5736.01 3450.03 3487.66 3483.24 1610.44 -3088. 60 0.81 5978620.17 631325. 49 N 70.34967663 W 148.93378531 6959.69 36.41 297. 18 5766.62 5813.62 3506.43 3544.55 3540.13 1636.43 -3139. 21 0.34 5978645.25 631274. 42 N 70.34974758 W 148.93419623 7054.42 37.94 298. 68 5842.10 5889.10 3563.06 3601.79 3597.37 1663.25 -3189. 77 1.88 5978671.16 631223. 39 N 70.34982080 W 148.9346 7151.07 37.48 298. 24 5918.56 5965.56 3621.48 3660.91 3656.48 1691.42 -3241. 74 0.55 5978698.39 631170. 93 0 N 70.34989770 W 148.93502 7246.42 36.95 297. 65 5994.50 6041.50 3678.54 3718.57 3714.14 1718.45 -3292. 69 0.67 5978724.50 631119. 51 N 70.34997147 W 148.93544241 7342.52 37.46 297. 50 6071.04 6118.04 3736.08 3776.68 3772.25 1745.35 -3344. 19 0.54 5978750.47 631067. 53 N 70.35004489 W 148.93586064 7438.93 37.39 297. 81 6147.60 6194.60 3794.10 3835.27 3830.84 1772.54 -3396. 09 0.21 5978776.72 631015. 16 N 70.35011912 W 148.93628203 7533.05 36.92 298. 23 6222.62 6269.62 3850.34 3892.12 3887.68 1799.25 -3446. 27 0.57 5978802.52 630964. 51 N 70.35019201 W 148.93668950 7628.93 36.35 297. 81 6299.55 6346.55 3906.93 3949.33 3944.90 1826.12 -3496. 78 0.65 5978828.49 630913. 54 N 70.35026538 W 148.93709961 7725.93 36.50 298. 13 6377.60 6424.60 3963.92 4006.93 4002.49 1853.14 -3547. 65 0.25 5978854.58 630862. 20 N 70.35033911 W 148.93751265 7818.20 37.96 298. 90 6451.07 6498.07 4019.07 4062.75 4058.30 1879.79 -3596. 70 1.66 5978880.35 630812. 68 N 70.35041187 W 148.93791092 7916.61 37.82 299. 72 6528.73 6575.73 4078.64 4123.19 4118.71 1909.38 -3649. 40 0.53 5978908.98 630759. 46 N 70.35049262 W 148.93833886 8012.14 36.70 299. 03 6604.77 6651.77 4135.64 4181.02 4176.52 1937.75 -3699. 79 1.25 5978936.45 630708. 57 N 70.35057007 W 148.93874810 8108.39 37.55 299. 24 6681.51 6728.51 4192.93 4239.11 4234.60 1966.03 -3750. 53 0.89 5978963.81 630657. 33 N 70.35064727 W 148.93916013 8202.99 36.69 299. 84 6756.94 6803.94 4249.17 4296.20 4291.65 1994.18 -3800. 20 0.99 5978991.06 630607. 17 N 70.35072409 W 148.93956346 8299.15 37.38 299. 69 6833.70 6880.70 4306.18 4354.12 4349.53 2022.93 -3850. 48 0.72 5979018.90 630556. 39 N 70.35080256 W 148.93997173 8395.70 37.20 300. 14 6910.51 6957.51 4363.73 4412.61 4407.99 2052.10 -3901. 18 0.34 5979047.16 630505. 18 N 70.35088219 W 148.94038345 8489.20 36.33 299. 95 6985.41 7032.41 4418.77 4468.58 4463.90 2080.12 -3949. 62 0.94 5979074.30 630456. 25 N 70.35095867 W 148.94077684 8587.30 37.03 298. 87 7064.09 7111.09 4476.52 4527.17 4522.48 2108.89 -4000. 67 0.97 5979102.15 630404 .70 N 70.35103719 W 148.94119138 8683.03 38.22 298. 10 7139.91 7186.91 4534.26 4585.62 4580.91 2136.76 -4052. 04 1.34 5979129.09 630352 .84 N 70.35111325 W 148.941608 8780.72 38.10 298. 32 7216.72 7263.72 4593.94 4645.97 4641.27 2165.29 -4105. 23 0.19 5979156.66 630299 .15 N 70.35119111 W 148.94204 8874.06 37.41 298 .78 7290.52 7337.52 4650.40 4703.12 4698.42 2192.60 -4155. 43 0.80 5979183.07 630248 .47 N 70.35126565 W 148.94244 8970.30 36.88 298. 79 7367.23 7414.23 4707.77 4761.24 4756.52 2220.59 -4206. 36 0.55 5979210.13 630197 .05 N 70.35134202 W 148.94286173 9064.37 36.98 298 .73 7442.43 7489.43 4763.57 4817.76 4813.03 2247.78 -4255. 91 0.11 5979236.43 630147 .03 N 70.35141624 W 148.94326411 9159.04 36.75 299 .36 7518.17 7565.17 4819.60 4874.55 4869.82 2275.35 -4305. 56 0.47 5979263.10 630096 .89 N 70.35149149 W 148.94366734 9255.23 36.84 299 .16 7595.20 7642.20 4876.40 4932.17 4927.41 2303.51 -4355. 83 0.16 5979290.36 630046 .14 N 70.35156834 W 148.94407552 9350.87 36.43 299 .24 7671.94 7718.94 4932.68 4989.24 4984.47 2331.36 -4405. 64 0.43 5979317.30 629995 .83 N 70.35164432 W 148.94448010 9446.07 36.23 298 .56 7748.64 7795.64 4988.34 5045.64 5040.86 2358.61 -4455 .02 0.47 5979343.66 629945 .98 N 70.35171870 W 148.94488108 9541.44 36.27 298 .40 7825.55 7872.55 5044.06 5102.03 5097.25 2385.50 -4504 .59 0.11 5979369.66 629895 .94 N 70.35179209 W 148.94528363 9637.61 36.55 297 .20 7902.95 7949.95 5100.56 5159.11 5154.33 2412.12 -4555 .08 0.80 5979395.37 629844 .98 N 70.35186473 W 148.94569369 9733.54 37.89 296 .30 7979.34 8026.34 5158.13 5217.13 5212.34 2438.23 -4606 .90 1.51 5979420.54 629792 .71 N 70.35193597 W 148.94611450 9829.22 37.12 296 .58 8055.24 8102.24 5215.97 5275.39 5270.57 2464.17 -4659 .06 0.82 5979445.53 629740 .10 N 70.35200674 W 148.94653809 9923.28 37.19 296 .41 8130.21 8177.21 5272.37 5332.20 5327.37 2489.51 -4709 .90 0.13 5979469.96 629688 .81 N 70.35207589 W 148.94695100 SurveyEditor Ver SP 2.1 Bld( doc40x_100) R-41 \R-41 \R-41 \R-41 Generated 2/2/2009 3:31 PM Page 3 of 7 Measured Vertical Along Hole Comments Inclination Azimuth SulrSea TVD ND Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 00 ft itUS ftUS 10019.47 37.65 296.55 8206. 60 8253.60 5330.41 5390. 65 5385.80 10114.60 37.72 296.43 8281. 88 8328.88 5388.14 5448. 80 5443.94 10209.99 37.04 295.85 8357. 68 8404.68 5445.68 5506. 71 5501.82 10305.06 37.06 295.43 8433. 56 8480.56 5502.64 5563. 99 5559.06 10398.53 40.04 294.80 8506. 65 8553.65 5560.62 5622. 23 5617.24 7" @ 10493'md 10521.08 40.63 292.04 8600.07 8647.07 5639.75 5701.55 5696.32 10552.31 44.41 289.78 8623.09 8670.09 5660.84 5722.65 5717.27 10584.22 47.14 288.40 8645.34 8692.34 5683.71 5745.51 5739.88 10615.71 49.95 286.69 8666.19 8713.19 5707.29 5769.11 5763.11 10647.43 53.08 286.02 8685.93 8732.93 5732.07 5793.94 5787.46 10679.16 55.91 285.21 8704.35 8751.35 5757.84 5819.76 5812.73 10710.71 59.16 285.28 8721.29 8768.29 5784.38 5846.38 5838.75 10743.53 62.57 284.61 8737.26 8784.26 5812.94 5875.04 5866.73 10774.36 65.68 284.83 8750.72 8797.72 5840.58 5902.78 5893.80 10806.62 69.43 284.31 8763.03 8810.03 5870.27 5932.59 5922.87 2515.58 -4762.22 2541.52 -4814.27 2567.03 -4866.25 2591.82 -4917.89 2616.53 -4970.63 2648.04 -5043.41 2655.55 -5063.13 2663.03 -5084.73 2670.13 -5107.23 2677.12 -5131.06 2684.07 -5155.93 2691.07 -5181.61 2698.46 -5209.31 2705.51 -5236.13 2713.00 -5264.98 0.49 5979495.08 0.11 5979520.08 0.80 5979544.65 0.27 5979568.51 3.22 5979592.27 1.54 5979622.46 13.05 5979629.63 9.10 5979636.71 9.81 5979643.41 10.01 5979649.97 9.16 5979656.47 10.30 5979663.01 10.54 5979669.90 10.11 5979676.46 11.72 5979683.44 629636.04 N 70.35214700 W 148.94737588 629583.54 N 70.35221777 W 148.94779859 629531.11 N 70.35228738 W 148.94822078 629479.04 N 70.35235501 W 148.94864017 629425.86 N 70.35242242 W 148.94906849 629352.54 N 70.35250837 W 148.94965951 629332.70 N 70.35252887 W 148.94981962 629310.96 N 70.35254924 W 148.94999510 629288.33 N 70.35256861 W 148.95017782 629264.39 N 70.35258766 W 148.95037127 629239.40 N 70.35260659 W 148.9505 629213.60 N 70.35262567 W 148.9507 629185.78 N 70.35264580 W 148.95100668 629158.84 N 70.35266500 W 148.95122451 629129.86 N 70.35268543 W 148.95145880 629101.41 N 70.35270470 W 148.95168879 629071.14 N 70.35272535 W 148.95193355 629041.36 N 70.35274675 W 148.95217432 629010.26 N 70.35276966 W 148.95242567 628978.51 N 70.35279326 W 148.95268228 10837. 43 73.34 283.74 8772. 87 8819.87 5899.33 5961.78 5951.29 2720.08 -5293.31 12.81 5979690.00 10869. 61 76.67 284.48 8781. 19 8828.19 5930.26 5992.86 5981.57 2727.65 -5323.45 10.58 5979697.04 10900. 92 80.26 285.19 8787. 45 8834.45 5960.83 6023.53 6011.54 2735.51 -5353.10 11.68 5979704.36 10933. 35 82.84 285.21 8792. 22 8839.22 5992.81 6055.61 6042.94 2743.92 -5384.05 7.96 5979712.21 10966. 29 85.46 285.44 8795. 57 8842.57 6025.48 6088.38 6075.03 2752.58 -5415.65 7.98 5979720.30 10997. 83 88.86 285. 53 8797.13 8844.13 6056.90 6119.87 6105.90 2760.99 -5446. 00 10.78 5979728.17 628948. 02 N 70.35281617 W 148. 95292877 11029. 67 93.21 285. 39 8796. 56 8843.56 6088.64 6151.70 6137.10 2769.47 -5476. 68 13.67 5979736.10 628917. 20 N 70. 35283929 W 148. 95317787 11053. 31 96.09 287. 72 8794. 64 8841.64 6112.16 6175.26 6160.28 2776.18 -5499. 26 15.65 5979742.40 628894. 50 N 70. 35285758 W 148. 95336125 11085. 36 96.84 288. 41 8791. 03 8838.03 6144.00 6207.10 6191.76 2786.06 -5529. 54 3.17 5979751.73 628864. 06 N 70. 35288449 W 148. 95360712 11117. 61 96.28 288. 61 8787. 35 8834.35 6176.03 6239.14 6223.47 2796.23 -5559. 92 1.84 5979761.36 628833. 50 N 70. 35291222 W 148. 95385385 11148. 74 96.32 287. 05 8783. 93 8830.93 6206.96 6270.09 6254.04 2805.70 -5589. 37 4.98 5979770.30 628803. 88 N 70. 35293804 W 148 .95409305 11180. 72 96.49 287. 93 8780. 37 8827.37 6238.71 6301.87 6285.42 2815.25 -5619. 68 2.79 5979779.31 628773. 41 N 70. 35296407 W 148 .95433920 11212. 25 96.49 286. 83 8776. 80 8823.80 6270.02 6333.19 6316.34 2824.61 -5649. 58 3.47 5979788.12 628743. 35 N 70. 35298957 W 148 .95458199 11245. 38 96.59 286. 76 8773. 03 8820.03 6302.89 6366.11 6348.78 2834.12 -5681. 09 0.37 5979797.07 628711. 68 N 70. 35301549 W 148 .954 11277. 30 96.59 286. 15 8769. 37 8816.37 6334.55 6397.82 6380.01 2843.11 -5711. 50 1.90 5979805.50 628681. 11 N 70. 35303997 W 148 8 .9550 11307. 70 97.18 285. 27 8765. 72 8812.72 6364.66 6428.00 6409.66 2851.28 -5740. 56 3.47 5979813.15 628651. 92 N 70. 35306223 W 148 .95532077 11339. 60 96.90 285. 90 8761. 81 8808.81 6396.24 6459.66 6440.76 2859.78 -5771. 05 2.15 5979821.11 628621. 28 N 70. 35308540 W 148 .95556842 11371. 47 96.52 286. 23 8758. 09 8805.09 6427.83 6491.31 6471.90 2868.54 -5801. 47 1.57 5979829.32 628590. 71 N 70. 35310927 W 148 .95581542 11403. 79 95.94 286. 58 8754. 58 8801.58 6459.91 6523.44 6503.56 2877.62 -5832. 29 2.09 5979837.84 628559. 74 N 70. 35313399 W 148 .95606571 11436. 04 95.84 285. 54 8751. 27 8798.27 6491.93 6555.52 6535.13 2886.49 -5863. 11 3.22 5979846.16 628528. 76 N 70. 35315817 W 148 .95631606 11467. 49 96.83 285. 11 8747 .80 8794.80 6523.10 6586.78 6565.83 2894.75 -5893. 26 3.43 5979853.88 628498. 47 N 70. 35318068 W 148 .95656087 11498. 75 96.42 284. 66 8744 .19 8791.19 6554.05 6617.83 6596.28 2902.73 -5923. 27 1.94 5979861.31 628468. 33 N 70. 35320240 W 148 .95680457 11530. 60 96.38 285. 05 8740 .64 8787.64 6585.59 6649.48 6627.33 2910.84 -5953. 86 1.22 5979868.88 628437. 59 N 70. 35322450 W 148 .95705301 11563. 65 96.14 285. 25 8737 .04 8784.04 6618.34 6682.33 6659.59 2919.43 -5985. 57 0.94 5979876.89 628405. 74 N 70. 35324789 W 148 .95731053 11594 .34 96.04 285. 08 8733 .78 8780.78 6648.76 6712.85 6689.57 2927.41 -6015. 03 0.64 5979884.35 628376. 15 N 70. 35326964 W 148 .95754972 SurveyEditor Ver SP 2.1 Bld( doc40x_100) R-41\R-41\R-41\R-41 Generated 2/2/2009 3:31 PM Page 4 of 7 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft n n tt ft n de 00 n ftUS ftUS 11626. 34 96.91 283.97 8730.18 87//.18 6680.43 6/44.64 6720.73 2935.39 -6045. 81 4.39 5979891.77 628345. 23 N 70.35329136 W 148. 95779967 11658. 59 97.84 282.55 8726.04 8773.04 6712.22 6776.63 6751.95 2942.72 -6076. 94 5.23 5979898.54 628313. 98 N 70. 35331133 W 148. 95805246 11690. 76 97.25 282.60 8721.81 8768.81 6743.87 6808.52 6782.99 2949.67 -6108. 06 1.84 5979904.93 628282. 74 N 70. 35333023 W 148. 95830523 11721. 89 97.15 283.95 8717.91 8764.91 6774.56 6839.40 6813.15 2956.76 -6138. 12 4.31 5979911.48 628252. 56 N 70. 35334953 W 148. 95854932 11754. 45 96.70 283.59 8713.98 8760.98 6806.72 6871.72 6844.77 2964.45 -6169. 51 1.76 5979918.60 628221. 03 N 70. 35337048 W 148. 95880426 11786. 33 96.56 283.34 8710.30 8757.30 6838.20 6903.39 6875.73 2971.82 -6200. 31 0.89 5979925.42 628190. 11 N 70. 35339056 W 148. 95905435 11818. 46 95.80 284.06 8706.84 8753.84 6869.98 6935.33 6906.98 2979.39 -6231. 34 3.25 5979932.43 628158. 95 N 70. 35341115 W 148. 95930637 11849. 88 93.43 281.79 8704.32 8751.32 6901.08 6966.65 6937.54 2986.39 -6261. 87 10.43 5979938.89 628128. 31 N 70. 35343022 W 148. 95955422 11882. 05 92.53 278.94 8702.64 8749.64 6932.78 6998.78 6968.56 2992.17 -6293. 46 9.28 5979944.10 628096. 62 N 70. 35344593 W 148. 95981082 11913. 46 91.40 276.61 8701.57 8748.57 6963.50 7030.17 6998.47 2996.42 -6324. 56 8.24 5979947.78 628065. 45 N 70. 35345746 W 148. 96006336 11946. 33 89.96 273.50 8701.18 8748.18 6995.31 7063.03 7029.31 2999.31 -6357. 30 10.43 5979950.09 628032. 67 N 70. 35346530 W 148. 960 11978. 46 89.41 273.70 8701.35 8748.35 7026.19 7095.16 7059.18 3001.33 -6389. 37 1.82 5979951.53 628000. 58 N 70. 35347073 W 148. 3 9605 12009. 96 86.91 272.83 8702.36 8749.36 7056.40 7126.64 7088.40 3003.12 -6420. 80 8.40 5979952.76 627969. 12 N 70. 35347556 W 148. 96084 12041. 92 86.67 272.62 8704.15 8751.15 7086.93 7158.55 7117.92 3004.64 -6452. 67 1.00 5979953.71 627937. 23 N 70. 35347963 W 148. 96110352 12074. 01 85.98 272.74 8706.21 8753.21 7117.56 7190.58 7147.56 3006.14 -6484. 66 2.18 5979954.63 627905. 22 N 70. 35348364 W 148. 96136325 12104. 96 85.53 273.16 8708.50 8755.50 7147.13 7221.44 7176.21 3007.73 -6515. 48 1.99 5979955.67 627874. 37 N 70. 35348791 W 148. 96161353 12137. 13 84.98 272.51 8711.16 8758.16 7177.82 7253.50 7205.95 3009.31 -6547. 50 2.64 5979956.68 627842. 33 N 70. 35349217 W 148. 96187352 12169. 53 84.67 273.72 8714.09 8761.09 7208.76 7285.77 7235.97 3011.07 -6579. 72 3.84 5979957.85 627810. 09 N 70. 35349688 W 148. 96213513 12200. 85 84.95 272.06 8716.92 8763.92 7238.63 7316.96 7264.96 3012.64 -6610. 87 5.35 5979958.87 627778. 92 N 70. 35350110 W 148. 96238806 12233. 05 86.60 273.33 8719.29 8766.29 7269.35 7349.07 7294.78 3014.15 -6642. 95 6.46 5979959.80 627746. 82 N 70. 35350515 W 148. 96264850 12264. 73 86.77 273.67 8721.12 8768.12 7299.74 7380.70 7324.34 3016.08 -6674. 52 1.20 5979961.16 627715. 23 N 70. 35351035 W 148. 96290482 12295. 91 86.63 274.00 8722.92 8769.92 7329.69 7411.83 7353.50 3018.16 -6705. 57 1.15 5979962.69 627684. 14 N 70. 35351596 W 148. 96315701 12327. 70 86.33 275.47 8724.87 8771.87 7360.35 7443.56 7383.42 3020.78 -6737. 19 4.71 5979964.74 627652. 48 N 70. 35352304 W 148. 96341376 12360. 13 85.53 276.17 8727.17 8774.17 7391.77 7475.91 7414.13 3024.06 -6769. 38 3.27 5979967.44 627620. 25 N 70. 35353192 W 148. 96367507 12391. 71 85.26 276.59 8729.71 8776.71 7422.41 7507.39 7444.13 3027.56 -6800. 66 1.58 5979970.38 627588. 91 N 70. 35354140 W 148. 96392909 12423. 69 85.19 276.79 8732.37 8779.37 7453.47 7539.25 7474.56 3031.27 -6832. 31 0.66 5979973.52 627557. 20 N 70. 35355146 W 148. 96418611 12455. 68 85.02 277.39 8735.10 8782.10 7484.58 7571.13 7505.08 3035.21 -6863. 94 1.94 5979976.89 627525. 51 N 70. 35356213 W 148. 96444294 12487. 08 84.81 277.68 8737.88 8784.88 7515.17 7602.40 7535.10 3039.31 -6894. 95 1.14 5979980.43 627494. 44 N 70. 35357326 W 148. 96469472 12518. 95 84.85 277.07 8740.75 8787.75 7546.19 7634.14 7565.55 3043.38 -6926. 42 1.91 5979983.94 627462. 89 N 70. 35358431 W 148. 96495033 12550. 97 85.15 277.42 8743.54 8790.54 7577.34 7666.04 7596.14 3047.40 -6958. 07 1.44 5979987.39 627431. 18 N 70. 35359522 W 148. 96520 12583. 09 84.54 276.69 8746.43 8793.43 7608.57 7698.03 7626.80 3051.33 -6989. 82 2.95 5979990.75 627399. 37 N 70. 35360587 W 148. 96546507 12615 .18 86.87 274.08 8748.83 8795.83 7639.58 7730.03 7657.21 3054.33 -7021. 67 10.89 5979993.18 627367. 47 N 70. 35361399 W 148. 96572372 12646 .81 89.17 274.55 8749.93 8796.93 7670.07 7761.64 7687.06 3056.71 -7053. 19 7.42 5979995.00 627335. 92 N 70. 35362041 W 148. 96597965 12678 .98 92.09 275.47 8749.57 8796.57 7701.19 7793.80 7717.59 3059.52 -7085. 23 9.52 5979997.23 627303 .84 N 70. 35362800 W 148. 96623983 12710 .08 95.04 274.05 8747.64 8794.64 7731.19 7824.84 7747.01 3062.10 -7116. 16 10.52 5979999.25 627272 .87 N 70. 35363495 W 148. 96649096 12742 .62 96.63 276.10 8744.33 8791.33 7762.52 7857.21 7777.76 3064.96 -7148. 40 7.95 5980001.53 627240 .58 N 70 .35364269 W 148. 96675277 12774 .50 96.35 275.96 8740.73 8787.73 7793.31 7888.89 7808.03 3068.29 -7179 .90 0.98 5980004.30 627209 .03 N 70 .35365170 W 148. 96700855 12806 .43 95.90 276.40 8737.32 8784.32 7824.19 7920.63 7838.40 3071.71 -7211. 46 1.97 5980007.15 627177 .41 N 70 .35366095 W 148. 96726485 12838 .45 95.53 276.92 8734.13 8781.13 7855.24 7952.49 7868.97 3075.40 -7243. 11 1.99 5980010.27 627145 .71 N 70 .35367096 W 148. 96752182 12870 .36 95.14 275.74 8731.16 8778.16 7886.16 7984.27 7899.41 3078.90 -7274. 69 3.88 5980013.21 627114 .08 N 70 .35368045 W 148. 96777823 12902.48 96.22 273.11 8727.99 8774.99 7917.00 8016.23 7929.72 3081.37 -7306.55 8.81 5980015.10 627082.18 N 70.35368710 W 148.96803696 SurveyEditor Ver SP 2.1 Bld( doc40x_100) R-41\R-41\R-41\R-41 Generated 2/2/2009 3:31 PM Page 5 of 7 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft it ft ft de 00 ft ftUS ftUS 12934.38 96.25 273.90 5724.52 8771. 52 7947.46 8047.94 7959.65 3083.31 -7338.20 2.46 5980016 .47 627050.50 N 70.35369232 W 148 .96829396 12966.15 95.63 273.86 8721.23 8768. 23 7977.88 8079.54 7989.55 3085.45 -7369.73 1.96 5980018 .05 627018.94 N 70.35369807 W 148 .96854996 12997.76 94.73 274.13 8718.38 8765. 38 8008.19 8111.02 8019.37 3087.64 -7401.13 2.97 5980019 .68 626987.50 N 70.35370398 W 148 .96880495 13028.92 95.45 273.89 8715.61 8762. 61 8038.09 8142.06 8048.79 3089.81 -7432.09 2.43 5980021 .29 626956.51 N 70.35370983 W 148 .96905635 13061.33 96.42 273.76 8712.26 8759. 26 8069.11 8174.29 8079.32 3091.96 -7464.26 3.02 5980022 .86 626924.32 N 70.35371561 W 148 .96931752 13092.72 96.53 274.43 8708.72 8755. 72 8099.16 8205.48 8108.92 3094.19 -7495.37 2.15 5980024 .53 626893.18 N 70.35372161 W 148 .96957013 13125.06 96.21 275.13 8705.14 8752. 14 8130.22 8237.62 8139.55 3096.87 -7527.40 2.37 5980026 .63 626861.11 N 70.35372884 W 148 .96983020 13156.70 95.69 275.14 8701.86 8748. 86 8160.69 8269.09 8169.61 3099.68 -7558.74 1.64 5980028 .89 626829.72 N 70.35373645 W 148 .97008470 13188.11 95.66 275.28 8698.75 8745. 75 8190.97 8300.35 8199.49 3102.52 -7589.87 0.45 5980031 .17 626798.55 N 70.35374412 W 148 .97033746 13220.76 94.39 275.27 8695.89 8742. 89 8222.48 8332.87 8230.61 3105.51 -7622.25 3.89 5980033 .58 626766.12 N 70.35375220 W 148 .97060043 13252.64 92.81 275.53 8693.89 8740. 89 8253.32 8364.69 8261.08 3108.51 -7653.93 5.02 5980036 .00 626734.40 N 70.35376029 W 148 .970857 13284.45 91.98 276.43 8692.56 8739. 56 8284.20 8396.47 8291.61 3111.82 -7685.54 3.85 5980038 .75 626702.74 N 70.35376925 W 148 .97111 13316.07 89.21 275.40 8692.23 8739. 23 8314.92 8428.08 8321.99 3115.07 -7716.98 9.35 5980041 .44 626671.24 N 70.35377806 W 148 .97136 13348.53 86.29 274.00 8693.50 8740. 50 8346.25 8460.52 8352.96 3117.73 -7749.30 9.97 5980043 .52 626638.88 N 70.35378523 W 148 .97163211 13380.19 85.53 272.98 8695.76 8742. 76 8376.59 8492.09 8382.93 3119.66 -7780.82 4.01 5980044 .87 626607.33 N 70.35379039 W 148 .97188805 13411.64 84.57 272.58 8698.48 8745. 48 8406.58 8523.43 8412.55 3121.17 -7812.12 3.31 5980045 .83 626576.02 N 70.35379445 W 148 .97214216 13443.52 82.49 271.62 8702.07 8749. 07 8436.78 8555.10 8442.38 3122.34 -7843.77 7.18 5980046 .42 626544.35 N 70.35379754 W 148 .97239917 13475.66 81.11 270.50 8706.65 8753. 65 8466.94 8586.91 8472.15 3122.93 -7875.58 5.51 5980046 .44 626512.54 N 70.35379905 W 148 .97265741 13507.28 81.56 269.66 8711.42 8758. 42 8496.40 8618.17 8501.23 3122.97 -7906.84 2.99 5980045 .93 626481.29 N 70.35379908 W 148 .97291121 13539.42 84.17 268.35 8715.41 8762. 41 8526.24 8650.06 8530.69 3122.41 -7938.72 9.07 5980044 .80 626449.43 N 70.35379748 W 148 .97317007 13570.52 84.19 268.92 8718.56 8765. 56 8555.13 8681.00 8559.22 3121.68 -7969.65 1.82 5980043 .51 626418.52 N 70.35379537 W 148 .97342120 13602.52 84.50 267.86 8721.72 8768. 72 8584.81 8712.84 8588.54 3120.78 -8001.48 3.44 5980042 .04 626386.71 N 70.35379284 W 148 .97367964 13634.28 85.57 268.15 8724.46 8771. 46 8614.23 8744.48 8617.61 3119.68 -8033.10 3.49 5980040 .37 626355.11 N 70.35378973 W 148 .97393638 13665.59 85.26 268.74 8726.97 8773. 97 8643.33 8775.69 8646.39 3118.83 -8064.30 2.12 5980038 .97 626323.94 N 70.35378733 W 148 .97418968 13697.99 85.02 268.68 8729.71 8776. 71 8673.49 8807.98 8676.24 3118.11 -8096.58 0.76 5980037 .66 626291.68 N 70.35378525 W 148 .97445172 13729.46 88.25 268.45 8731.56 8778. 56 8702.80 8839.39 8705.27 3117.32 -8127.98 10.29 5980036 .31 626260.30 N 70.35378301 W 148 .97470668 13761.67 91.61 266.74 8731.60 8778. 60 8732.66 8871.59 8734.84 3115.97 -8160.15 11.70 5980034 .38 626228.16 N 70.35377922 W 148 .97496791 13793.52 94.36 267.43 8729.94 8776. 94 8762.03 8903.40 8763.94 3114.35 -8191.92 8.90 5980032 .20 626196.43 N 70.35377471 W 148 .97522579 13825.03 97.46 267.17 8726.70 8773. 70 8791.02 8934.74 8792.69 3112.88 -8223.22 9.87 5980030 .16 626165.16 N 70.35377058 W 148 .97547994 3 13856.87 99.29 267.31 8722.06 8769. 06 8820.15 8966.24 8821.58 3111.36 -8254.68 5.76 5980028 .08 626133.74 N 70.35376634 W 148 .9757 13888.91 99.61 269.74 8716.80 8763. 80 8849.64 8997.84 8850.87 3110.54 -8286.27 7.55 5980026 .70 626102.17 N 70.35376402 W 148 .97599188 13920.99 99.43 269.58 8711.49 8758. 49 8879.37 9029.48 8880.43 3110.36 -8317.91 0.75 5980025 .94 626070.54 N 70.35376341 W 148 .97624875 13952.96 99.26 269.47 8706.30 8753. 30 8909.00 9061.03 8909.89 3110.10 -8349.46 0.63 5980025 .12 626039.01 N 70.35376260 W 148 .97650487 13985.21 99.50 270.18 8701.04 8748. 04 8938.94 9092.84 8939.68 3110.00 -8381.27 2.30 5980024 .45 626007.20 N 70.35376224 W 148 .97676321 14016.71 99.75 270.67 8695.78 8742. 78 8968.27 9123.90 8968.88 3110.23 -8412.33 1.73 5980024 .12 625976.15 N 70.35376278 W 148 .97701537 14049.00 99.26 273.52 8690.44 8737. 44 8998.63 9155.75 8999.14 3111.39 -8444.15 8.84 5980024 .72 625944.31 N 70.35376586 W 148 .97727375 14080.52 98.70 272.55 8685.52 8732 .52 9028.47 9186.88 9028.88 3113.04 -8475.24 3.52 5980025 .81 625913.20 N 70.35377027 W 148 .97752619 14112.39 98.60 273.46 8680.73 8727. 73 9058.66 9218.39 9058.99 3114.69 -8506.71 2.84 5980026 .89 625881.71 N 70.35377468 W 148 .97778167 14143.93 98.35 273.19 8676.08 8723. 08 9088.60 9249.58 9088.86 3116.50 -8537.85 1.16 5980028 .14 625850.55 N 70.35377953 W 148 .97803455 14175.73 98.25 273.80 8671.49 8718. 49 9118.83 9281.05 9119.03 3118.42 -8569.26 1.92 5980029 .50 625819.11 N 70.35378467 W 148 .97828958 14208.29 97.97 275.15 8666.90 8713 .90 9149.95 9313.28 9150.09 3120.94 -8601.39 4.19 5980031 .44 625786.94 N 70.35379144 W 148 .97855052 SurveyEditor Ver SP 2.1 Bld( doc40x_100) R-41\R-41\R-41\R-41 Generated 2/2/2009 3:31 PM Page 6 of 7 Comments Measured Inclination Azimuth Suh.Sea ND ND Vertical Along Nole Closure NS EW DLS Northing Easting Latitude longitude Depth Section Departure ft de de ft ft ft ft }t ft ft de OOtt ftUS ftUS 14L4V.i5:5 yb.bb L//./:S iSbbL./5 ES/U`J./5 `J7251.J/ `J:345.bb ylrSl.4/ Jl'L4.5b -iib:i:i.4b ZS.ZS3 bytSUU:i4 .4rS 14272.14 95.25 278.97 8659.51 8706.51 9211.91 9376.70 9211.99 3129.08 -8664.27 5.98 5980038 .45 14304.17 93.96 280.22 8656.93 8703.93 9243.35 9408.63 9243.40 3134.40 -8695.75 5.60 5980043 .21 14335.29 89.45 279.15 8656.01 8703.01 9273.98 9439.72 9274.02 3139.63 -8726.40 14.89 5980047 .89 14367.22 87.80 278.89 8656.78 8703.78 9305.35 9471.64 9305.38 3144.64 -8757.93 5.23 5980052 .32 14399.57 86.50 279.48 8658.38 8705.38 9337.13 9503.95 9337.14 3149.79 -8789.82 4.41 5980056 .91 14430.63 85.02 278.84 8660.68 8707.68 9367.59 9534.93 9367.59 3154.72 -8820.40 5.19 5980061 .29 14462.62 85.19 278.07 8663.41 8710.41 9398.86 9566.80 9398.86 3159.41 -8851.93 2.46 5980065 .41 14494.51 85.36 279.27 8666.04 8713.04 9430.06 9598.58 9430.06 3164.20 -8883.35 3.79 5980069 .63 14526.39 85.09 279.19 8668.69 8715.69 9461.31 9630.35 9461.31 3169.30 -8914.70 0.88 5980074 .17 14559.00 84.95 278.73 8671.52 8718.52 9493.23 9662.84 9493.24 3174.36 -8946.79 1.47 5980078 .65 14590.71 85.12 279.75 8674.27 8721.27 9524.31 9694.43 9524.33 3179.43 -8977.97 3.25 5980083 .16 14622.24 84.57 279.33 8677.10 8724.10 9555.22 9725.83 9555.26 3184.63 -9008.94 2.19 5980087 .81 14651.36 84.81 280.39 8679.79 8726.79 9583.80 9754.83 9583.85 3189.60 -9037.51 3.72 5980092 .26 14685.64 84.71 280.65 8682.92 8729.92 9617.51 9788.96 9617.57 3195.83 -9071.07 0.81 5980097 .89 14715.62 84.20 280.38 8685.82 8732.82 9646.97 9818.80 9647.05 3201.28 -9100.41 1.92 5980102 .81 14747.88 84.36 280.07 8689.04 8736.04 9678.64 9850.90 9678.75 3206.98 -9132.00 1.08 5980107 .94 Last Survey 14763.54 84.23 279.51 8690.59 8737.59 9693.99 9866.48 9694.11 3209.62 -9147.36 3.65 5980110 .31 TD (Projected) 14820.00 84.23 279.51 8696.27 8743.27 9749.29 9922.66 9749.47 3218.91 -9202.76 0.00 5980118 .60 Survey Type: Definitive Survey NOTES: GYD GC SS - (Gyrodata -gyro single shots -- Gyrodata gyro orientation surveys. Not to be run above 70 degrees in clination. ) MWD + IFR + MS - (In-field referenced MWD with mutt-station analysis and correction applied in post-processing. Assumes a BHA sag correction is applied to enhan ce inclination accuracy. ) Leaal Description: Northing (Y) f ftUSl Easting (X) fftUSl Surface : 599 FSL 4490 FEL S32 T12N R13E UM 5977065.52 634442.22 BHL : 3812 FSL 3534 FEL S36 T12N R12E UM 5980118.60 625183.96 ti"1S/54.tf1 N /U.:ib32SU1'L:i W 14tS.y/tStilUyl 625723.93 N 70.35381349 W 148.97906112 625692.36 N 70.35382793 W 148.97931675 625661.62 N 70.35384212 W 148.97956570 625630.02 N 70.35385569 W 148.97982171 625598.04 N 70.35386968 W 148.98008072 625567.38 N 70.35388305 W 148.98032905 625535.77 N 70.35389576 W 148.98058507 625504.28 N 70.35390874 W 148.98084021 625472.84 N 70.35392256 W 148.98109487 625440.66 N 70.35393628 W 148.98135547 625409.40 N 70.35395004 W 148.9816 625378.34 N 70.35396415 W 148.9818 625349.70 N 70.35397762 W 148.98209217 625316.03 N 70.35399454 W 148.98236474 625286.60 N 70.35400932 W 148.98260300 625254.92 N 70.35402478 W 148.98285955 625239.52 N 70.35403197 W 148.98298425 625183.96 N 70.35405714 W 148.98343418 SurveyEditor Ver SP 2.1 BId( doc40x_100) R-41\R-41\R-41\R-41 Generated 2/2/2009 3:31 PM Page 7 of 7 r WELLHEAD = FMC ACTUATORL BAKERC KB. FEV = 4T BF. ELEV = 21' OP _ K 300' _ Max Angle = 100° @ 14017' ', Datum MD = 15852' ', Datum N D = 8800' SS 9-5/8" CSG, 47#, L-80 BTC XO TO L-80 HYD 563 R -41 I S~'2""CHRO E UB NG**E > 70° @ 10810' 503' 9-5/8" TAMPORT COLLAR 4-1/2" HES X NIP, ID = 3.813" 3785' I 9-5/8" CSG, 47#, L-80 BTC, ID = 8.681" I-i 3903' 7" CSG, 26#, L-80 TCII XO TO L-80 BTGM 5413' , Minimum ID = 3.725" @ 10326' 4-1 /2" XN NIPPLE GAS LIFT MANDRELS iT MD TVD DEV TYPE VLV LATCH PORT DATE 4 4207 3631 38 KGB-2 DMY BK 0 01/12/( 3 7084 5912 38 KGB-2 DMY BK 0 01/121( 2 9080 7502 37 KGB-2 DCK-2 BEK 0 01/12!( 1 10197 8394 37 KGB-2 DMY BK 0 01/12/( 0232' 4-1/2" HES X NIP, ID = 3.813" 10263' H 7" X 4-1 /2" BKR S-3 PKR, ID 3.880" 10296' 4-1/2" HES X NIP, ID = 3.813" 10326' 4-1/2" HES X NIP, ID = 3.813" 10332' I~ 7" X 5" LTP w /TIEBACK SLV, ID = 4.892" 4-1/2" TBG, 12.6#, 13CR-80 VAM TOP, I 10339' f ~ 10339' 4-1/2" WLEG, ID = 3.958" .0152 bpf, ID = 3.958" 10355' 7" X 5" HMC LNR HGR, ID = 4.430"?? 10364' 5-1/2" X 4-1/2" XO, ID = 3.958"?? ~ 7" CSG, 26#, L-80 BTGM, .0383 bpf, ID = 6.276" I PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: 81 ° @ 13475' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2.88 6 13475-13570 O 01/11/09 2.88 6 13610-13650 O 01/11/09 2.88 6 13690-13840 O 01/11/09 2.88 6 13890-13910 O 01/11/09 2.88 6 14050-14140 O 01/11/09 2.88 6 14180-14700 O 01/11/09 14728' I--I PBTD 4-1/2" LNR, 12.6#, 13CR-80 VAM TOP, .0152 bpf, ID = 3.958" I~ 14820' r DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNff 01/11/09 N9ES ORIGINAL COMPLETION WELL: R-41 01/30/09 ?/JMD DRLG DRAFT CORRECTIONS PERMff No: 2081530 API No: 50-029-23399-00 SEC 32, T12N, R13E, 600' FSL & 790' FWL BP Exploration (Alaska) ~ ~ gyrodafa Gyrodata Incorporated 1682 W. Sam Houston Pkwy. N Houston, Texas 77043 713/461-3146 Fax: 713/461-0920 January 9, 2009 State of Alaska - AOGCC Attn: Christine Mahnken 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 Re: R-Pad, Well #R-41 Prudhoe Bay, Alaska Enclosed, please find two (2) copies, and one (1) disk of the completed survey for the above referenced well. We would like to take this opportunity to thank you for using Gyrodata, and we look forward to serving you in the future. Sincerely, ~~ ~~ Rob Shoup%~ North American Regional Manager RS:tf Serving tf-~e Worldwide Energy Industry wit~i Precision Survey Instrumentation y~® ~~ ~~ Gyrodata Incorporated 1682 W. Sam Houston Pkwy. N. Houston, Texas 77043 713/461-3146 Fax: 713/461-0920 SURVEY REPORT BP R-Pad #R-41 Nabors #9-ES Prudhoe Bay, AK AK1208G_174 17 Dec 2008 Servirg the Worldwide Energy Industry ;ro•ith Precision Survey Instrume?~tation A Gyrodata Directi onal Survey for BP EXPLORATION (ALASKA) Lease: R-Pad Well: R-41, 4" Drillpipe Location: Nabors #9-ES, Prudhoe Bay, Alaska • Job Number: AK1208G 174 Run Date: 17 Dec 2008 Surveyor: James Butler Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.345279 deg. N Longitude: 148.908713 deg. W Azimuth Correction: Gyro: Bearings are Relative to True North U Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Well Head Location BP Exploration (Alaska) Lease: R-Pad Well: R-41, 4" Drillpipe Location: Nabors #9-ES, Prudhoe Bay, Alaska Job Number: AK1208G 174 A Gyrodata Directional Survey MEASURED I N C L AZIMUTH BORE HOLE DOGLEG VERTICAL CLOSURE DEPTH BEARING SEVERITY DEPTH DIST. AZIMUTH feet deg. deg.. deg. min. deg./ feet feet deg. 100 ft. 0.00 0.00 0.00 N 0 0 E 0.00 0.00 0.0 0.0 ----------------------------------- 0 - 563 FT. RATE GYROSC ------------------------------------------------------------------------------------------ OPIC MULTISHOT SURVEY RUN INSIDE 4" DRILLPIPE --------------- ---------------------- ALL MEASURED DEPTHS ----------------------------------- AND COORDINATES REFERENCED TO NABORS #9-ES R.K.B. ------------------------------------------------------------------------------------------ --------------- ---------------------- 100.00 0.17 152.76 S 27 14 E 0.17 100.00 0.1 152.8 186.00 0.30 170.81 S 9 11 E 0.18 186.00 0.5 161.0 288.00 0.13 245.39 S 65 23 W 0.29 288.00 0.8 173.0. 376.00 1.08 290.92 N 69 5 W 1.13 375.99 0.9 235.4 483.00 3.77 308.03 N 51 58 W 2.57 482.89 4.9 294.0 563.00 6.65 307:.73 N 52 16 W 3.60. 562.55 12.1 302.2 Final Station Closure: Distance: :12.08 ft Az: 302.25 deg. HORIZONTAL COORDINATES feet 0.00 N 0.00 E 0.13 S 0.07 E 0.47 S 0.16 E 0.79 S 0.10 E 0.53 S 0.77 W 1.99 N 4.49 W 6.45 N 10.22 W 2 ALASSA OIL A1~TD GAS C01~5ERRATIOI~T COMI~IIS5IOI~T Greg Hobbs Engineering Team Leader BP Exploration Alaska Inc. PO Box 196612 Anchorage AK 99519-6612 SARAH PALlN, GOVERNOR 333 W. 7th AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU R-41 BP Exploration Alaska Inc. Permit No: 208-153 Surface Location: 600' FSL, 4490' FEL, SEC. 32, T12N, R13E, UM Bottomhole Location: 3370' FSL, 4614' FEL, SEC. 36, T12N, R12E, UM Dear Mr. Hobbs: Enclosed is the approved application for permit to drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit iri the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. 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, ,~/~ Daniel T. Seamount, Jr. Chair DATED this ~ day of October, 2008 cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. yi `,~ STATE OF ALASKA /~~ ~ ~ e ,A.~ a t ~ ALASi~IL AND GAS CONSERVATION COMMI~O /d f~~0 PERMIT TO DRILL o ~~~ ~~;~~ 20 AAC 25.005 ~~ 1 a. Type of work ® Drill ^Redrill ^ Re-Entry 1 b. Current Well Class ^ Exploratory ^ Development Gas ^ Service ^ Multiple Zone Strati ra hic Test Develo ment Oil Sin le Zone ^ 9 p ~ ® p ^ 9 1 c. S ~ I '{c~is61~ fof,,, °;' ~;;p ^Coalbed Meth r°^ Gas,Hydrates ~~"' ' ` ^ Shale Gas ° " 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 11. Well Name and Number: PBU R-41 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 14380' TVD 8694' 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay 4a. Location of Well (Governmental Section): Surface: 4490' FEL T12N R13E UM 600' FSL SEC 32 7. Property Designation: ADL 028279, 028257 Pool , , , . , , Top of Productive Horizon: 3370' FSL, 4614' FEL, SEC. 31, T12N, R13E, UM 8. Land Use Permit: 13. Approximate Spud Date: November 10, 2008 Total Depth: 3370' FSL, 4614' FEL, SEC. 36, T12N, R12E, UM 9. Acres in Property: 2560 14. Distance to Nearest Property: 10,120' 4b. Location of Well (State Base Plane Coordinates): Surface: x-634442 y-5977066 Zone-ASP4 10. KB Elevation Plan (Height above GL): 48.4 feet 15. Distance to Nearest well Within Pool: 80' 16. Deviated Wells: Kickoff Depth: 300 feet Maximum Hole An le: 99 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 3250 Surface: 2370 18. Casin Pro ram: S ecifications To - Settin D th -Bo ttom Quantit of C ment c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta a data 42" 20" 129# X-56 Weld 155' Surface Surface 155' 155' 260 sx Arctic Set A rox. 12-1/4" 9-5/8" 47# L-80 BTC-M 3840' Surface Surface 3840' 3832' 606 sx Dee Crete 762 sx Class 'G' 8-1/2" 7" 26# L-80 TCII 10462' Surface Surfa a 10462' 8621' 404 sx LiteCrete 181 sx Class 'G' 6-1/8" 4-1/2" 12.6# 13Cr80 Vam To 4068' 10312' 8495' 14380' 8693' 451 sx Class'G' 19. PRESENT WELL CONDITION S UMMARY {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): asing Length Size Cement Volume MD TVD Conductor /Structural Surface Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): 20. Attachments ^ Filing Fee, $100 ^ BOP Sketch ®Drilling Program ^ Time vs Depth Plot ^ Shallow Hazard Analysis ^ Property Plat ^ Diverter Sketch ^ Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the for goin 's true and correct. Contact Mehrdad Nadem, 564-5941 Printed Name Greg Title Engineering Team Leader Prepared By NamelNumber Si nature Phone 564-4191 Date Terrie Hubble, 564-4628 Commission Use Oni Permit To Drill Number: ~0~'f~.~ API Number: 50-Do? ~?3.399000U Permit A pr I Date: See cover letter for other re uirements Conditions of Approval: r~ ~s ,,F~ If box is checked, well may not be used to explore for, test, or produce Coalbed methane, gas hydrates, or gas contained shales: ,U,/ ~~'~~~~ ~S i ~~~ ~S~e-~S ~`Gn~~ Samples Req'd: ^ Yes ~No Mud Log Req'd: ^ Yes p0 rvo \ HZS Measures: {Yes ^ No Directional Survey Req'd: Yes ^ No Other: `~ ~~b~~ ~~Q~~~~E L \Qd~ I ,Z~ ~p.~'~.~ ~~~~ ~~~~ •--~ (% APPROVED BY THE COMMISSION / Q Date ,COMMISSIONER Form 10-401 Revised 12/2005 "' Submit In Duplicate by ~ • To: Alaska Oil & Gas Conservation Commission From: Mehrdad Nadem, Operations Drilling Engineer Date: September 15, 2008 Re: R-41 Permit to Drill R-41 well is scheduled to be drilled by Nabors Rig 2ES approximately on November 10, 2008. R-41 is a grass root well. The surface 9-5/8" casing will be set at 3,840' MD. The 8-1/2" intermediate hole will be drilled to the top of the Sag River formation, and will be cased with 7", 26# casing. A 6-1/8" hole will then be drilled to targets in the Ivishak Zone 4B. A solid 4-1/2" production liner will be run and cemented in place. Please note the following Well Summary as detailed on the next few pages: R-41 Permit to Drill Application Page 1 Drill and Complete Plan Summary T e of Well service / roducer / in'ector : Z46 Producer Target X Y Z TVDss Township Range Section FSL FEL Surface As-built 634,441 5,977,065 -20 12N 13E 32 599 4491 Tar et 1 628,980 5,979,740 -8800 12N 13E 31 3370 4614 Tar et 2 628,020 5,979,930 -8690 12N 12E 36 3577 701 Tar et 3 627,320 5,979,969 -8750 12N 12E 36 3628 1401 Tar et 4 626,660 5,980,030 -8690 12N 12E 36 3699 2060 Tar et 5 626,230 5,980,040 -8735 12N 12E 36 3717 2489 BHL Coordinates 625,600 5,980,040 -8645 12N 12E 36 3727 3119 AFE Number: PBD 4P 2822 API Number: Estimated Start Date: 11/10/2008 O eratin da s: 31.1 Ri Nabors 2ES TMD 14,380' TVD rkb: 28.5 GL 19.9 RTE. 48.4 Wetl Desi n: Ivishak Z46 Producer w/4-1/2" Chrome Completion Current Status: New drill General Well Information: Estimated BHP: 3250 psi at 8800' TVDss Estimated BHT: 182 deg F at 8800' TVDss Directional• Planned Well Summary Directional Plan: S er WP 2 KOP: 300' MD, begin 2.25/100 build Close Approach Wells: S-14A and R-30 do passing Major risk criteria, and were minor risked following the "Tolerable Collision Risk" criteria. R-30 is shut in and will be sidetracked at a future date. R-41 close approaches S-14 is in the roduction hole. Surve Pro ram: G ro-MAG-SS 800' , MWD + IFR + MS Maximum Hole Angle: 98.91 degrees at TD / 37 degrees in the 8-1 /2" hole Distance to Nearest Pro ert Line: 10,120' Distance to Nearest Well in Pool: -80' to S-14A. S-14A is secured and is shut in. Contacts Drilling Engineer Geologist Pad Engineer Name Phone # Mehrdad Nadem 564-5941 Cole Abel 564-5576 Don Brown 564-43023 E-mail nademm@bp.com cole.abel@bp.com browd2@bp.com R-41 Permit to Drill Application Page 2 Fnrmatinn Markers R-41 (Raced nn SnR Formation Est. TOPS. TVDss Est Tops MD Hydrocarbon Est Pore Pressure Est Pore Pressare PPG EMW BPRF base ennafrost -based on R-Ol db ick -1600 1730 No SV4 -2480 2829 No 916 7.1 SV3 -2880 3330 No 1063 7.1 SV2 -3020 3505 No 1115 7.1 Surface. Cs Point @ -3350 SSTVD 30' TVD above SVl) SVl -3380 3956 No 1248 7.1 UG4 _3780 4457 No 1396 7.1 WS2 -5050 6048 No 1865 7.1 WSl -5230 6274 No 1931 7.1 CM3 -5410 6499 No 1997 7.1 THRZ -6680 8090 No 2466 7.1 LCU/TI{NG -6770 8203 No 2500 7.1 TJB -8410 10257 No 3105 7.1 Intermediate Cs Point @TSGR TSGR -8582 10473 Yes 3169 7.1 TSHU -8624 10526 No 3184 7.1 TSAD -8716 10664 Yes 3200 7.1 42SB _8798 10910 3250 7.1 TSAD -8647 10557 Yes PTD in Shublik Casina/Tubina Program Hole Size Csg / Tb O.D. Wt1Ft Grade Connection Length Top 1VID /TVD Bottom MD /TVD 42 20" 129 X-56 Weld 155 Surface 155/155 12-1/4" 9-5/8" 47# L-80 BTC-M 3,840' Surface 3,840'/3,832 8-'/z" 7" 26# L-80 TCII 10,462' Surface 10,462' / 8,621' 6-1/8" 4'/i" 12.6# 13cr-80 Vam To 4,068' 10,312' / 8,495' 14,380'/ 8,693' Tubin 4 ~/z" 12.6# 13Cr-80 Vam To 10,312' Surface 10,312' /8,495' * Fully inspected Condition B surface casing R-41 Permit to Drill Application Page 3 Mud Program 12-~/a" Surface Hole Mud Pro erties Spud -Freshwater Mud Interval Densit PV YP PH Funn Vis FL 0-1,950' ~BPRF 8.8-9.2 30-55 50 - 70 9.0 - 9.5 300-400 NC - 8 1,950'-3,840' SV3 9.2-9.5 30-55 45 - 60 9.0 - 9.5 225-325 < 8.0 8-1/2" Intermediate Hole Mud Pro erties Freshwater Mud (LSND) Interval Densit PV YP PH API Filtrate MBT 3,840' - 8,090' THRZ 8.8-9.4 12-18 18-24 9-10 <6 < 15 8,090'-10,462' TSAG 10.7 12-22 18-28 9-10 HTHP < 10 < 20 6-'/e" Production Hole Mud Pro erties FloPro-SF Interval Densit PV YP PH API Filtrate MBT 10,462'-14,380' Final Well TD 8.4-8.5 6-12 22-28 9.0-9.5 6-8 <3.0 Logging Program Survey and Logging Program: 12-~/a" Hole Section: Surface Gyro until MWD surve s are clean. MWD /LWD: Dir/GR/Res O en Hole: None Cased hole: None 8-1/2" Hole Section: MWD /LWD: DIR/near-bit GR/RES/PWD real time O en Hole: None Cased Hole: None required 6'/8" Hole Section: Sample as required b well site Geolo ist MWD /LWD: DIR/near-bit GR/RES O en Hole: None Cased Hole: None Cement Program Casin Size Surface Casin - 9-°/8" 47 Ib/ft L-80 BTC-M - Sin le Sta e Basis Lead: Open hole volume + 250% excess in permafrost and 40% excess below permafrost. TOC at surface. Tail: Open hole volume + 40% excess + 80' shoe track + 200' DP x 9-5/8" casing. TOC 2000' MD abov shoe Casin shoe. Fluid Sequence and Tam Port collar might be installed at 1,000' as a contingency for cement to Volume: surface Wash None S acer 100 bbls of MudPush II wei hted to 10.0 Lead 391 bbls 606 sks 10.7 Ib/ al Dee CRETE - 3.62 cuft/sk Tail 159 bbls 762 sks 15.8 Ib/ al Class G - 1.17 cuft/sk Temo BHST = 80° F, TBD by Schlumberger R-41 Permit to Drill Application Page 4 Casin Size: 7" 26#, L-80 Intermediate Liner Tail: 1,000' of open hole with 40% excess, 200' of 7" x 4" DP, plus 80' shoe track Basis: Lead: Remainder of 8-1 /2" x 7" annulus with 40% excess TOC: 4,800' MD The 7" casing ma be cemented in two stages Total Cement Spacer 40 bbls of Viscosified Spacer weighted to 12.5 ppg (MudPush II) Volume: Lead 178 bbls, 404 sks, 12.0 LiteCRETE - 2.47 cuft/sk Tail 37.47 bbls, 181 sks, 15.8 Ib/ al Class G -1.16 cuft/sk Tem BHST =182° F, BHCT TBD b Schlumber er Casin Size 4.5" 12.6#, L-80 Production Liner Basis: Lead: None Tail: 3,918' of open hole with 30% excess, 80' shoe track, 150' 4-'/z" x 6-1 /8" liner lap, and 200' of 7" x 4" DP excess. Tail TOC: 10,312' MD (200' above Liner Top) Total Cement Volume• Spacer 40 bbls of Viscosified Spacer weighted to 9.8 ppg (Mud Push II) Lead None Tail 94 bbls, 527 cuft, 451 sks 15.8 Ib/ al Class G + adds - 1.17 cuft/sk Tem BHST = 182° F, BHCT TBD b Schlumber er Surface and Anti-Collision Issues Surface Shut-in Wells: There are no wells requiring surface shut-in in order to move onto the well. At surface R-07 to the north and R-35 to the south are greater than 30' away form the target well. Close Approach Shut-in Wells: S-14A and R-30 do not pass close approach "major risk" criteria." These wells are minor risked following BP's Tolerable Risk Collision guidelines. Hydrogen Sulfide R-Pad is designated as an H2S Site. Recent H2S data from the pad is as follows: Well Name H2S Level Date of Readin #1 Closest SHL Well H2S Level R-07A Injector, Beware of Returns #2 Closest SHL Well H2S Level R-35 140 m 4/6/2008 #1 Closest BHL Well H2S Level M-16 40 m 5/1 /2006 #2 Closest BHL Well H2S Level M-04 160 m 8/26/2007 Max. Recorded H2S on Pad/Facilit R-04 100 m 4/9/1998 Other Relevant H2S Data R-30 H2S data: 25 ppm on 7/9/2005 H2S alarms from ri s, etc. Faults The R-4lwellpath could intersect three faults. Possible Fault A may be a splay connecting Faults 5 and 6. R-30 BHL is very near this feature but had no lost circulation. Possible Fault B seen only on vertical seismic time image. The feature is not seen on continuity volumes. Minor lost circulation at Fault 7 crossing in S-14A CST. S- 14A intersected fault near TSAD on UT side and crossed DT into lower Shublik. R-41 Permit to Drill Application Page 5 ~~ Fault Location D TVDss Throw Directs Uncertainty Possible Fault A -Zone 4 11670' -8715' 10-15' D/U East +/- 150' M.D. Possible Fault B -Zone 4 12290' -8720' 15' D/U Unknown +/- 100' M.D. Fault 7 -Zone 4 13730' -8735' 25' D/U East +/- 100' M.D. Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. BOP regular test frequency for R-41 will be 14 days. Diverter, BOPE and drilling fluid system schematics on file with the AOGCC. Surface Section • BOPE: • Maximum anticipated BHP: • Maximum surface pressure: • Planned BOP test pressure: • 9-5/8" Casing Test: • Kick Tolerance: Hydril GK, 21-1/4", 2000 psi 1243 psi - SV2 (7.1 ppg EMW C~ 3,350' TVDss) 908 psi -Based on a full column of gas @ 0.10 psi/ft Function Test 3500 psi surface pressure test NA Intermediate Section Kick Tolerance and Intearitv Testin • BOPE: Hydril, 13-5/8", 5000 psi • Maximum anticipated BHP: 3169 psi -Top Sag River (7.1 ppg EMW C~ 8582' TVDss) • Maximum surface pressure: 2311 psi -Based on a full column of gas C~3 0.10 psi/ft • Planned BOP test pressure: 3500 psi/250 psi Rams and 2500 psi/250 psi Annular • 7" Casing Test: 3500 psi surface pressure test • Integrity Test -8-1/2" hole: LOT 20' - 50' from 9 5/a" shoe • Kick Tolerance: 59.5 bbl KT with a 10.7 ppg mud with a minimum 11.8 ppg FIT Production Section Kick Tolerance and Intearitv Testin • BOPE: Hydril, 13-5/8", 5000 psi • Maximum anticipated BHP: 3250 psi - (7.1 ppg C«~ 8798' TVDss) • Maximum surface pressure: 2370 psi -Based on a full column of gas C«3 0.10 psi/ft • Planned BOP test pressure: 3500 psi/250 psi Rams and 2500 psi/250 psi Annular • 4 ~/2" Casing Test: 3500 psi surface pressure test • Integrity Test - 6-'/a" hole: FIT 20' - 50' from 7" shoe • Kick Tolerance: Calculated an Infinite KT with an 8.5 ppg mud • Planned completion fluid: Estimated 8.5 ppg Seawater / 6.8 ppg Diesel R-41 Permit to Drill Application Page 6 i Variance Requests: To avoid the risk of plugging the flow line with large rocks and wood encountered while drilling surface hole, it is requested to drill without a flow paddle for the first portion of the surface hole. While the flow paddle is removed from the flow line, PVT alarms will be used and the pit levels accurately monitored for any pit gain. Also, a visual check will be made during connections by looking down the riser to ensure the well is not flowing. After returned debris that could plug the flow line diminishes the flow paddle will be reinstalled. Disposal No annular injection in this well. Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at R-Pad. Any metal cuttings will be sent to the North Slope Borough. Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to R-41 for injection. Haul all Class I waste to Pad 3 for disposal. R-41 Permit to Drill Application Page 7 DrillirlR Hazards and Continc~hcies POST THIS NOTICE IN THE DOGHOUSE I. Well Control A. The Ivishak in this fault block is expected to be under-pressured at 7.1 ppg EMW. This pressure is estimated based on offset well pressures. 3500 psi test pressure is in accordance with the RP for Prudhoe production well casing tests. II. Lost Circulation/Breathing A. The R-41 inverts sharply at the toe, beginning at the prognosed Fault 7 crossing. Fault 7 is a 25', N-S trending, down-to-the-east fault segment that connects Faults 4 and 5. The toe-up is required to drain attic reserves on the up thrown west side. If the R-41 is unsuccessful in reaching this target, the M-19B will be extended north to capture the reserves. Seismic interpretation and fault risk are discussed in detail in the Risk/Uncertainty Analysis section below. B. The only lost circulation potential for this well is low to medium. S-14A experienced minor lost circulation when it was drilled with coil tubing unit. The losses were reported at 7 barrels per hour. III. Kick Tolerance/Integrity Testing A. The Kick Tolerance for both the intermediate and production hole sections is 59.5 bbls and infinite, respectively with planned mud weights. The FIT will prove up adequate formation strength for expected ECD's. B. Integrity Testing IV Test Point Test Depth Test EMW (lb/gal) t e 9 5/8" window 20-ft minimum from the 9-5/8" LOT 11.7 minimum window 7" shoe 20-ft minimum from the 7" shoe FIT 9.7 minimum A. Significant directional work will be required in the production hole section. Hole cleaning and differential sticking tendency will be of concern. Watch for signs of tight hole and short trip /back ream as required to avoid stuck pipe. VI. Hydrogen Sulfide A. R-PAD is designated as an H2S site; H2S levels of potentially lethal concentrations have been recorded on this pad. VII. Faults A. R-41 well path is expected to intersect one to three faults in Zone 4. The other fault is denoted as fault "7." S-14A crossed this fault, and experienced minor lost circulation at 7 barrels per hour. VIII. Anti-Collision Issues A. S-14A and R-30 do not pass close approach "major risk" criteria." These wells were minor risked since the close approach occurs in the production hole. R-41 will be over balanced to both of these wells in this section of the hole. R-41 Permit to Drill Application Page 8 Operations Summary Current Condition and history: / New Drill SCOpe Notify the field AOGCC representative with intent to plug and abandon Pre-Ricl Work: 1. A 20" conductor has been set. Weld a landing ring for a Gen 5 well head. 2. If necessary, level the pad and prepare location for rig move. Move well houses as necessary. Rig Operations: 1. MIRU Nabors 2ES. NU diverter spool & riser and function test. PU drillpipe as required and stand back in derrick. 2. MU 12 Ya" drilling assembly with MWD/GR and directionally drill surface hole to TD at 3,840' MD. Short trip just before the base of permafrost. 3. RIH and drill the remainder of the surface hole to the planned surface hole TD in a shale member of the SV2 sand at 3840' MD. POOH and L/D BHA. 4. Run and cement the 9 5/8", 47#, L-80, BTC-M, condition B, surface casing back to surface. A TAM port collar will be placed at 1,000' if hole conditions warrant. With plug on cement job bumped, test the 9 5/8" casing to 3500 psi for 30 charted minutes. 5. ND diverter and riser. NU casing and tubing heads and test. 6. NU BOPE and test to 250 low and 3,500 psi / 2500 psi annular. PU drillpipe as needed. 7. MU 8-1/2" drilling BHA with MWD / GR /RES / PWD/Gamma at bit. RIH to float collar. 8. Drill out shoe track. Circulate and condition mud. Displace well to new LSND drilling fluid. Drill 20' of new formation below rat-hole and perform leak off test (LOT). 9. Drill to +/-200' and above the HRZ, weight up mud to 11.3 ppg. 10. Directionally drill ahead to +/-200' and above the Kingak. Ensure mud weight of 11.3 ppg prior to drilling ahead. Continue drilling to TD maintaining sail angle & direction to the Top SAG at 10,462' md. After TD, CBU, and condition hole as necessary to run 7" casing. POOH. 11. RU and run 7" 26# L-80 BTC- x TC-II casing to TD. Cement the 7" casing to 1,000 below the surface casing shoe. After bumping the plug on the cement job, pressure test the 7" casing to 3,500 psi for 30 charted minutes. 7" casing will be hung in a mandrel hanger. However, if space-out becomes an issue. To ensure the casing shoe is into the top of the Sag, the casing will be hung on emergency slips. The next two steps will be executed if the 7" casing is hung on emergency slips. 12. After allowing tail slurry to develop -50 psi compressive strength-split the stack and install the casing slips and pack-off and cut of the excess casing per FMC representative. 13. NU the BOP stack and test the "breaks" to 3500 psi. 14. Freeze-protect the 9-6/8" x 7" annulus, once the tail cement has reached 500 psi compressive strength. Confirm that the OA is open. Ensure that the mud/diesel/brine in the OA is overbalanced to formation at the 9 5/8" shoe (~8.5 ppg). 15. PU 6-%8" drilling BHA with a roller cone bit and MWD / GR /RES /near bit gamma and RIH to the landing collar. On top of the float collar re-test the casing to 3500 psi f/10 minutes. 16. Displace the well to 8.5 ppg Flo-Pro SF fluid. 17. Drill out shoe and 20' of new formation and perform the planned FIT. Drill ahead, per directional proposal and rig site geologist, to well TD. Two or more BHA may be used to drill the production hole. 18. MU and run 4-~/z" 12.6# 13CR liner to TD and cement to the top of overlap. H-14B Permit to Drill Application Page 9 19. Set liner top packer and ace well to clean seawater above the line~p. 20. A perf pill will be left in the 4-1/2" liner. 21. POOH, UD the liner running tool. 22. Pressure test casing and liner to 3,500 psi for 30 minutes. 23. RU DPC pert guns, RIH and perforate. Perf intervals to be supplied by Asset. 24. R/U and run a 4'/z", 12.6#, 13Cr, VamTop tubing completion, stinging into the 4-1 /2" liner tie back sleeve. 25. Space out and make up tubing hanger per FMC Rep. 26. Land the tubing hanger, and run in lock down screws. 27. Set packer and individually test the tubing and annulus to 3,500 psi for 30 minutes. Record each test. 28. Set a BPV. 29. Nipple down the BOPE. Nipple up the tree and test to 5,000 psi. 30. Freeze protect the well to -2,200' TVD. Secure the well. 31. RD and Move Off. Post-Rig Work: 1. MIRU slickline. Pull the ball and rod / RHC plug. 2. RU Eline and run a jewelry log. 3. Install well-house and instrumentation and flowline. Estimated Pre-rig Start Date: 9/10/2008 Estimated Spud Date: 11/10/1008 H-14B Permit to Drill Application Page 10 TREE= 4-1/16"5KCMJ WELLHEAD = FMC ACTUATOR = KB. ELEV = BF. ELEV = KOP= Max Angle = @ Datum MD = Datum TV D = 8800' SS PROPOSAL 9-5/8" CSG, 47#, L80, ID = 8.861" ~-{ 3$40' Minimum ID = 3.725" @ 10292' 4-1 /2" XN NIPPLE R-01 ~ SAFETY NOTES: 4-1/2" CHROME TBG I ~4-1l2" X NIP, ID = 3.813" ~ (SAS LIFT MANDR~S ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 4200 3 7100 2 9100 1 10462 1 Q222' ~ 4-1/2" X NIP, ID = 3.813" 10242' 7" X 4-1/2" BKR S-3 PKR, ID = ??? 10262' 4-1/2" X NIP, ID = 3.813" 10292' 4-1/2" XN NIP, ID = 3.725" 4-1/2" TBG, 12.6 #, 13CR-80, Vam Top 10,312` 7" CSG, 26#, L-80, .0383 bpf, ID = 6.276" ~~ 10 PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: Note: Refer to Production DB for historical pert data S¢E SPF INTERVAL Opn/Sqz DATE 4- 10312' I- j4-1/2" WLEG, ID= 3.958" ~ 10312' 7" X 5" LTP w /TIEBACK SLV, 10 = 4.892" 103 5" X 4-1 i2" XO, ID = 3.958 " /2" TBG, 12.6 #, 13CR-80, 14300' I -~PBTD~ ~ 4-1/2" LNR, 12.6#, 13CR, 0152 bpf, ID = 3.958" ~ DATE REV BY COMMENTS DATE REV BY 07/08/08 MWJMD FIRST DRAFT ENDICOTT UNIT WELL: R-41 PERMIT No: API No: BP 6cploration (Alaska) COMPANY DETAILS BP Amoco Calculation Method: Minimum Curvature Error Sysicm: ISCWSA Scan Mclhod: Trav Cylinder North error Surface: Elliptical+Casing Warning Method: Rules Based HALLIBURT©N Sperry Orllling l3ervice~ 4332 r t 0 s 1 i ~. _ _. 1 1 FORMATION TOP DETAILS No. TVDPath MDPath Formation 1 8621.50 10462.10 TSAG REFERENCE INFORMATION SURVEY PROGRAM -ordinate (N/E) Reference: Well Centre: Plan R-41, True North Depth F m Deprh To Survey/Plan Vcsical (TVD) Rc&rcnce: 28.SKg+20.OOGL 48.50 Section (VS) Reference: Slor - (O.OON,O.OOE) 28.50 800.00 Planned: 8-41 Wp 2.0 V8 Icasured Depth Reference: 2R.SKB+20.UOGL 4850 800.00 14380.40 Planned: R-41 W 2.0 V8 Calculation Meihod: Minimum Curvature I t ~ _ _ I _ i _F I ! _ _ ' . ~Rfi65 -7582 -6 499 -5 416 Tool Plan: R-41 Wp 2.0 (Plan R-41/Plan R-41) CB-GYRO-SS Crcatcd By: Sperry Drilling Datc: 4/21/211(18 MWD+IFR+MS WELL DETAILS Name +N/-S +E/-W Noshing Easting Latitude Longitude Slot Plan R-41 1413.77 -2979.40 5977068.02 634441.83 70°20'42.999N 148°54'31.378W N/A TARGET DETAILS Name TVD +N/-S +E/-W Northing Easting Shape R-4l Geo-poly 8693.50 3133.32 -8787.75 5980039.98 625600.00 Polygon R-41 T6 rev 1 869350 3133.32 -8787.75 5980039.98 625600.00 Poinl R-4l T2 8738.50 2979.92 -6369.92 5979929.98 628020.00 Point R-41 T4 Rev 1 8738.50 3104.31 -7728.02 5980029.98 626660.00 Point R-41 TS rev 1 8783.50 3122.02 -8157.80 5980039.98 626230.00 Poin[ R-4I T3 8798.50 3032.47 -7069.15 5979969.98 627320.00 Point R-41 Tl 8848.50 2772.72 -5413.41 5979739.99 628980.00 Point CASING DETAILS No. TVD MD Namc Sizc j .. 1 8573.00 10401.34 7" 7.0 2 8693.50 14380.40 4 I/2" 4.50 MD, 8676.(11'TVD I I i :, I .... 5500 .5000 -~.. ', 480 SECTION DETAILS Sec MD Inc Azi TVD +N/-S +E/-W DLeg TFace VScc Target 1 28.50 OAO 0.00 28.50 0.00 QW 0.00 0.00 (1.0(1 2 250.00 0.00 0.00 250.00 0.00 0.00 0.00 0.00 0.00 3 1896.14 37.04 297.74 1783.87 239.16 -454.74 2.25 0.00 508.65 4 10800.45 37.04 297.74 8652.11 2651.65 -5041.80 O.OU 0.00 5639.50 5 10954.80 90.00 282.22 8848.50 2772.72 -5413.41 12.00 -19.18 6030.19 R-0I TI b 11014.41 97.13 282.85 8844.80 2785.62 -5471.45 12.0(1 4.98 (11189.19 7 11801.64 97.13 282.85 8747.14 2959.33 -6233.04 0.110 0.00 6864.88 8 11940.55 90.00 274.30 8738.50 2979.92 -6369.92 S.W -129.53 7000.73 R-0I T2 9 12009.45 84.80 274.59 8741.81 2985.25 -6438.51 8.00 176.97 7067.12 10 12556.31 84.50 274.59 879426 3028.83 -6981.11 0.00 0.00 7592.84 I I 12644.59 9(1.(10 27(1.16 8798.50 3032.47 -7069.15 B.OU -38.94 7676.99 R-41 T3 12 12757.72 96A4 276.91 8792.53 3039.42 -7181.79 8.00 48.00 7785.42 13 13231.45 96.04 276.91 8742.67 3096.10 -7649.47 0.00 0.00 8244.98 14 13310.58 90.00 275.02 8738.50 3104.31 -7728.02 8.00 -162.58 8321.72 R-41 T4 Rev I IS 13414.11 82.17 272.31 8745.56 3110.91 -783 100 8.00 -16100 8420.94 16 13641.57 82.17 272.31 8776.54 3119.98 -8056.16 0.(10 0.00 8636.07 17 13743.55 90.00 270.00 8783.50 3122.02 -8157.80 8.00 -16.48 8732.49 R-41 TS rev 1 18 13855.87 98.91 271.13 8774.78 3123.11 -8269.65 8.00 7.16 883821 19 14380.40 98.91 27113 8693.50 3133.32 -8787.75 (1.00 0.00 9329.64 R-41 Tb rev I COMPANY DETAILS REFERENCE INFORMATION SURVEY PROGRAM BP Amoco Co-ordinate (N/E) Rcfcrcncc: Well Ccnire: Plnn R-41, True North cpth Fm Dcpih To Su rvey/Plan Tool Plan: R-41 Wp 2.0 (Plan R-41/Pl an R-41) ~ ~~J Vertical (TVD) Rcfcrcncc: 28.SK8+2U.UOGL48.50 ~~IINN~~ Iculation Methud: Minimum Curvatum Sectiun (VS) Rcfcrcncc: Slut - (O.OON,000E) S.SU 800.00 Pla nned: R-01 Wp 2.0 V8 CB-GYRO- SS Created By: Sperry Drilling Dale: 4/21/2008 Error System: ISCWSA Measured Dcpih Reference: 28.SKB+20.OOGL 48.50 00.00 14380.40 Plunned: R-0I Wp2.0 V8 MWD+IFR+MS Scan Meih<xl: Trav Cylinder North Calculat ion Method: Minimum Curvature WELL DETAILS Error Surface: Elliptical+Casing CASING DETAILS Namc +N/-S + E/-W Noshing Easting Latitude Longitude Slut Plan R-41 1413.77 -2979.40 5977055.02 634441.83 7 U`2U'42.999N 148°54'3 1.378W N/A No. TVD MD Namc Sizc ECT1O N DETAILS l 8573.00 10401.34 7" ZOOb Z 8693.50 14380.40 41/2" 4.500 Sec MD Inc Azi TVD +N/-S +E/-W DLcg TFace VScc Target H A L L E B U R TO N 1 28so o.oo o.o0 2sso o.oo o.oo o.oo o.oo Qoo 2 250.00 0.00 0.00 250.00 Q00 O.OO O.UO 0.00 O.OO 3 -1896.14 37A4 297.74 1783.87 239.16 -454.74 2.25 0.00 508.65 Serviaee iliin O 4 10500.45 37.04 297.74 8652.11 2651.65 -5041.8(1 OAO 0.(10 5639.50 p g erry r 5 1(1954.80 90.00 282.22 SS48.SO 2772.72 -5413.41 12.00 -19.18 6030.19 R-41 TI 6 11014.41 97.13 282.85 8844.80 2785.62 -5471.45 12.00 4.98 6089.19 - ~ ~ ~ ~ ~ 7 11801.64 97.13 282.85 8747.14 2959.33 -6333.04 QUO 0.00 6864.88 8 11940.55 90.00 274.30 8738.50 2979.92 -6369.92 8.00 - 129.53 700(1.73 R-41 T2 - ~, 9 12009.45 84.50 274.59 8741.81 2955?5 -6438.51 8.00 176.97 7067.12 l0 12556.31 84.50 274.59 8794.26 3028.83 -6981.11 OAO Q00 7592.84 ~ ~ '> 1 l 12644.59 9UA0 270.16 8798.50 3032.47 -7069.15 SAO -38.94 7676.99 R-41 T3 0 - 12 12757.73 96.04 276.91 8792.53 3039.42 -7181.79 8.0(1 48.00 7785.42 ~' - 0° 13 13231.45 96.04 276.91 8742.67 3096.10 -7649.47 0.00 0.00 8244.98 • -~- ~ ~ ~ ~ 14 13310.58 90.00 275.02 8738.50 3104.31 -7728.02 8.00 - 162.58 8331.72 R-4l T4 Rcv l - ~ ~ - - - - 10° IS 13414.11 82.17 272.31 8745.56 3110.91 -783L00 8.00 - 16L(10 8420.94 l6 13641.57 82.17 272.31 8775.54 3119.98 -8056.16 O.OO 0.00 8636.07 _~ -~- ~ 2p 17 13743.55 9000 270.00 8783.50 3122.02 -8157.80 8.00 -16.48 8732.49 R-41 TS rev I ~ 0 1 18 13855.87 98.91 27L13 8774.78 3123.11 -8269.65 8.00 7.16 8838.21 I 0 3p° 19 14380.40 98.91 27L13 8693.50 3133.32 -8787.75 0.00 0.00 9329.64 R-41 T6 rev 1 ,__~_ . . End Dir : 2 8.51' MD, 1895.(15"PV D 2000 ... ~ _ '000 I _. i_ - _ i ~-~ I- ? i -- _ _ _. _ . ~ : .3000. ._. - ~ .. r_ I. ~ r i -- ~ 0 .. _ I .. 4000. - - - - - !i ! - - --' ' - .. ... C' 4000 _ . ~ i - ~ - ' - ' ~ ~ Sta rt Dir 1 2'?/100' : 109 21.92' MD, 8676.01'T D p - _ 1 + , - _ 000 _ i - I End Dir : I 1 03 .55 MD, 88 44 8' TVD - i i ~ St rt D ir 8'?/100' : 12190.81' D, 8747 l5'T VD _ _ u _F ~ ~-- '~'~ -~- ~ i I i End Dir 12398 69' M 8741 81' TV D - ... . ~ - - r - 5000 _ - ~ i I Start D ir 8?/100' 12945 49 M D, 8794?6' T D F, _ _ _ - _ _ _ ~ j E nd Dir : I 1(18.73' MD, 8 794.6' TV D Start it 8'?/IUO' : 1 3597.47 M D 8743.6 9'TVD 6000 _ 7000 ~ ~.. ' ~ EI d Dir :13792 .63' MD, 8 7 .8T TV D ~~~ - - _ _ - ~ _ tart Dtr 8~/l0U :1403 .9T MD , 8777.1 l' TVD _ . _, I ~ -. I / % End Du : 14241.77 M , 5774. 93' TVD , t I ~ _ ( I I ~ ' _ ~ ~ I ~ / R-41 Wp 2.Q / I i FORMATION TOP DETAILS 9000 ~ - - / / _ T ' No TVDPath MDPath Formation / j . ~ I i ' ; ~ R-41 T6 rev 1 -~ ' 8621.50 10462.10 TSAG ~ Q ~ ~ I ~ I ~ ~ ! ~ -~- ~ l I ° // ~ _ I -_ . ~ TSAG I`-' - -> - . t o ~ tel. ~~y TARGET DETAILS 7 - _, 120 0 D ~ 130 '. A'N)e ~ I ~ -~ Plan R -41 _-r ~. i. - ~ ' 1 10 U _ R-41 7 5 rev I J +N/-S +E/-W Name TVD Northin ~ b Eason Sha c 8 P ~ ~ R -41 T2 R- 41 T4 Rcv ~~. ' i R-41 Gco-poly 8693.50 3133.32 -8787.75 5980039.98 625600.00 Polygon R-41 T3 R-41 T6 rev 1 8693.50 3133.32 -8787.75 5980039.98 62560000 Point _ I - ' _ _ _. _ _ _ _ _ _ i--_..-_ R-41 T2 8738.50 2979.92 -6369.92 5979929.98 628020.00 Point ~- "r T Tr r-. TT _ ~~ R-41 T4 Rev 1 8738.50 3104.31 -7728.02 5980029.98 636660.00 Point ' ~ ~ R-41 TS rev I 8783.50 3122.02 -8157.80 5980039.98 626230.00 Point 4000 6000 8000 10000 ' 20. " __ - 1401'^ R-41 T3 8798.50 3032.47 -7069.15 5979969.98 627320.00 Point R-41 Tl 8848.80 2772.72 -5413.41 5979739.99 628980.00 Point Vertical Section a[ 289.62° [2000ft/in] Sperry-Sun BP Planning Report Company: BP Amoco Date: 4/21/2008 Time: 15:57:47 Page: 1 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Plan R-41, True North Site: PB R Pad Vertical (TVD) Reference: 28.51<B+20.OOGL 48:5 Well: Plan R-41 Section (VS) Reference:.. Well (O.OON,O.OOE,289.62Azi) Wellpath: Plan R-41 Survey Calculation Method: .Minimum Curvature 1)ht Oracle Plan: R-41 Wp 2.0 Date Composed: 2/7/2008 Version: 8 Principal: Yes Tied-to: From Well Ref. Point Field: Prudhoe Bay North Slope UNITED STATES Map System: US State Plane Coordinate System 1927 Map Zone: Alaska, Zone 4 Geo Datum: NAD27 (Clarke 1866) Coordinate System: Well Centre Sys Datum: Mean Sea Level Geomagnetic Model: bggm2007 Site: PB R Pad TR-12-13 UNITED STATES :North Slope Site Position: Northing: 5975706.22 ft Latitude: 70 20 29.100 N From: Map Easting: 637446.42 ft Longitude: 148 53 4.328 W Position Uncertainty: 0.00 ft North Reference: True Ground Level: 0.00 ft Grid Convergence: 1.05 deg Well: Plan R-41 Slot Name: Between Slot 3-4 Well Position: +N/-S 1413.77 ft Northing: 5977065.02 ft Latitude: 70 20 42.999 N +E/-W -2979.40 ft Easting : 634441.83 ft Longitude: 148 54 31.378 W Position Uncertainty: 0.00 ft Casing Points MD TVD ft ft Diameter in Hole Size Name in 10401.34 8573.00 14380.40 8693.50 7.000 4.500 8.500 7" 6.125 4 1 /2" Formations MD TVD Formations Lithology Dip Angle Dip Direction ft ft deg.. 'deg 10462.10 8621.50 TSAG 0.00 0.00 Targets Name Description Dip. Dir. R-41 Geo-poly -Polygon 1 -Polygon 2 -Polygon 3 -Polygon 4 -Polygon 5 -Polygon 6 -Polygon 7 -Polygon 8 -Polygon 9 -Polygon 10 -Polygon 11 -Polygon 12 R-41 T6 rev 1 R-41 T2 R-41 T4 Rev 1 R-41 T5 rev 1 R-41 T3 R-41 T1 TVD ft 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8693.50 8738.50 8738.50 8783.50 8798.50 8848.50 Map Map. +N/-S +E/-W Northing Easting ft ft ft ft 3133.32 -8787.75 5980039.98 625600.00 2622.85 -4976.99 5979597.98 629419.00 2753.52 -5012.65 5979727.98 629381.00 3015.08 -5988.20 5979971.98 628401.00 3259.41 -7230.11 5980193.98 627155.00 3247.38 -8399.61 5980160.98 625986.00 3359.57 -9188.79 5980258.98 625195.00 3446.28 -10119.46 5980328.98 624263.00 3099.14 -10060.67 5979982.98 624328.00 3034.37 -8290.40 5979949.98 626099.00 2987.70 -7473.05 5979917.98 626917.00 2819.39 -6565.85 5979765.98 627827.00 2448.98 -4931.10 5979424.98 629468.00 3133.32 -8787.75 5980039.98 625600.00 2979.92 -6369.92 5979929.98 628020.00 3104.31 -7728.02 5980029.98 626660.00 3122.02 -8157.80 5980039.98 626230.00 3032.47 -7069.15 5979969.98 627320.00 2772.72 -5413.41 5979739.99 628980.00 <_- Latitude -> <- Longitude -> Deg Min Sec. Deg Min' Sec 70 21 13.764 N 148 58 48.241 W 70 21 8.778 N 148 56 56.844 W 70 21 10.063 N 148 56 57.889 W 70 21 12.628 N 148 57 26.409 W 70 21 15.021 N 148 58 2.716 W 70 21 14.890 N 148 58 36.900 W 70 21 15.984 N 148 58 59.972 W 70 21 16.825 N 148 59 27.179 W 70 21 13.412 N 148 59 25.447 W 70 21 12.796 N 148 58 33.701 W 70 21 12.346 N 148 58 9.809 W 70 21 10.699 N 148 57 43.288 W 70 21 7.068 N 148 56 55.500 W 70 21 13.764 N 148 58 48.241 W 70 21 12.279 N 148 57 37.565 W 70 21 13.490 N 148 58 17.265 W 70 21 13.660 N 148 58 29.828 W 70 21 12.790 N I 148 57 58.004 W 70 21 10.249 N 148 57 9.603 W Sperry-Sun BP Planning Report Company:: BP Amoco Date: 4/21/2008 Time: 15:57:47 Pager. 2 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Plan R-41, True North Site: PB R Pad Vertical (TVD) Reference: 28. 5Kg+20.OOGL 48 .5 Well: Plan R-41 Section (VS) Reference: Well (O.OON,O.OOE,289.62Azi) Wellpath: Plan R-41 Survey Calculation Method: Minimum Curvature Db: Oracle Targets Map Map <- Latitude - > ' <- Longitude --> Name Description TV D +N/-S +E/-W Northing Easting Deg Min Sec `Deg Min Sec Dip.. Dir. ft ft ft ft ft Plan Section Information MD Incl Azim TVD +N/-S +EJ-W DLS Build Turn TFO Target ft deg deg ft ft ft deg/100ft deg/100ft deg/100ft deg 28.50 0.00 0.00 28.50 0.00 0.00 0.00 0.00 0.00 0.00 250.00 0.00 0.00 250.00 0.00 0.00 0.00 0.00 0.00 0.00 1896.14 37.04 297.74 1783.87 239.16 -454.74 2.25 2.25 0.00 0.00 10500.45 37.04 297.74 8652.11 2651.65 -5041.80 0.00 0.00 0.00 0.00 10954.80 90.00 282.22 8848.50 2772.72 -5413.41 12.00 11.66 -3.42 -19.18 R-41 T1 11014.41 97.13 282.85 8844.80 2785.62 -5471.45 12.00 11.95 1.05 4.98 11801.64 97.13 282.85 8747.14 2959.33 -6233.04 0.00 0.00 0.00 0.00 11940.55 90.00 274.30 8738.50 2979.92 -6369.92 8.00 -5.13 -6.15 -129.53 R-41 T2 12009.45 84.50 274.59 8741.81 2985.25 -6438.51 8.00 -7.99 0.42 176.97 12556.31 84.50 274.59 8794.26 3028.83 -6981.11 0.00 0.00 0.00 0.00 12644.59 90.00 270.16 8795.50 3032.47 -7069.15 8.00 6.24 -5.02 -38.94 R-41 T3 12757.72 96.04 276.91 8792.53 3039.42 -7181.79 8.00 5.34 5.97 48.00 13231.45 96.04 276.91 8742.67 3096.10 -7649.47 0.00 0.00 0.00 0.00 13310.58 90.00 275.02 8738.50 3104.31 -7728.02 8.00 -7.64 -2.39 -162.58 R-41 T4 Rev 1 13414.11 82.17 272.31 8745.56 3110.91 -7831.00 8.00 -7.56 -2.62 -161.00 13641.57 82.17 272.31 8776.54 3119.98 -8056.16 0.00 0.00 0.00 0.00 13743.55 90.00 270.00 8783.50 3122.02 -8157.80 8.00 7.68 -2.26 -16.48 R-41 T5 rev 1 13855.87 98.91 271.13 8774.78 3123.11 -8269.65 8.00 7.94 1.00 7.16 14380.40 98.91 271.13 8693.50 3133.32 -8787.75 0.00 0.00 0.00 0.00 R-41 T6 rev 1 Survey MD Incl Azim TVD Sys TVD VS N/S E/W DLS MnpN MapE TooUCo ft deg deg ft ft ft ft ft deg/100ft ft ft 28.50 0.00 0.00 28.50 -20.00 0.00 0.00 0.00 0.00 5977065.02 634441.83 CB-GYRO 100.00 0.00 0.00 100.00 51.50 0.00 0.00 0.00 0.00 5977065.02 634441.83 CB-GYRO 200.00 0.00 0.00 200.00 151.50 0.00 0.00 0.00 0.00 5977065.02 634441.83 CB-GYRO 250.00 0.00 0.00 250.00 201.50 0.00 0.00 0.00 0.00 5977065.02 634441.83 Start Dir 2. 300.00 1.13 297.74 300.00 251.50 0.49 0.23 -0.43 2.25 5977065.24 634441.40 CB-GYRO 400.00 3.38 297.74 399.91 351.41 4.37 2.06 -3.91 2.25 5977067.01 634437.89 CB-GYRO 500.00 5.63 297.74 499.60 451.10 12.14 5.71 -10.85 2.25 5977070.53 634430.88 CB-GYRO 600.00 7.88 297.74 598.90 550.40 23.77 11.18 -21.25 2.25 5977075.81 634420.38 CB-GYRO 700.00 10.13 297.74 697.66 649.16 39.26 18.46 -35.10 2.25 5977082.85 634406.41 CB-GYRO 800.00 12.38 297.74 795.73 747.23 58.57 27.54 -52.36 2.25 5977091.61 634388.99 MWD+IFR 900.00 14.63 297.74 892.96 844.46 81.68 38.41 -73.02 2.25 5977102.11 634368.14 MWD+IFR 1000.00 16.88 297.74 989.20 940.70 108.55 51.04 -97.05 2.25 5977114.31 634343.90 MWD+IFR 1100.00 19.13 297.74 1084.30 1035.80 139.14 65.42 -124.40 2.25 5977128.20 634316.30 MWD+IFR 1200.00 21.38 297.74 1178.12 1129.62 173.40 81.53 -155.03 2.25 5977143.75 634285.38 MWD+IFR 1300.00 23.63 297.74 1270.50 1222.00 211.29 99.35 -188.89 2.25 5977160.95 634251.20 MWD+IFR 1400.00 25.88 297.74 1361.31 1312.81 252.73 118.83 -225.95 2.25 5977179.77 634213.81 MWD+IFR 1500.00 28.13 297.74 1450.40 1401.90 297.67 139.96 -266.12 2.25 5977200.18 634173.27 MWD+IFR 1600.00 30.38 297.74 1537.65 1489.15 346.04 162.71 -309.37 2.25 5977222.14 634129.62 MWD+IFR 1700.00 32.63 297.74 1622.90 1574.40 397.76 187.03 -355.61 2.25 5977245.62 634082.96 MWD+IFR 1800.00 34.88 297.74 1706.05 1657.55 452.76 212.89 -404.78 2.25 5977270.59 634033.34 MWD+IFR 1896.14 37.04 297.74 1783.87 1735.37 508.65 239.16 -454.74 2.25 5977295.97 633982.92 MWD+IFR 1900.00 37.04 297.74 1786.94 1738.44 510.95 240.24 -456.79 0.00 5977297.01 633980.84 MWD+IFR 2000.00 37.04 297.74 1866.77 1818.27 570.58 268.28 -510.10 0.00 5977324.09 633927.04 MWD+IFR 2038.51 37.04 297.74 1897.51 1849.01 593.54 279.08 -530.63 0.00 5977334.51 633906.32 End Dir 2100.00 37.04 297.74 1946.59 1898.09 630.21 296.32 -563.42 0.00 5977351.16 633873.24 MWD+IFR 2200.00 37.04 297.74 2026.41 1977.91 689.84 324.36 -616.73 0.00 5977378.24 633819.44 MWD+IFR 2300.00 37.04 297.74 2106.24 2057.74 749.47 352.40 -670.04 0.00 5977405.31 633765.64 MWD+IFR 2400.00 37.04 297.74 2186.06 2137.56 809.10 380.43 -723.35 0.00 5977432.39 633711.84 MWD+IFR gent Sperry-Sun BP Planning Report Company: BP Amoco Date: 4/21/2008 Time: 15:57:47 Page: 3 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Plan R-41, Tru e North Site: PB R Pad Vertical (TVD) Reference: 28.5KB+20.OOGL 48 :5 Well: Plan R-41 Section (VS) Reference: Well (O.OON,O.OOE,289.62Azi) Wellpath: Plan R-41 Survey Calculation Method:' Minimum Curvature Dh: Oracle Survey MD Incl Azim TVD Sys TVD VS N/S E/W DLS MapN MapE TooUCo ft deg. deg ft ft ft ft ft deg/100ft . ft ft 2500.00 37.04 297.74 2265.88 2217.38 868.73 408.47 -776.66 0.00 5977459.46 633658.04 MWD+IFR 2600.00 37.04 297.74 2345.71 2297.21 928.36 436.51 -829.97 0.00 5977486.54 633604.23 MWD+IFR 2700.00 37.04 297.74 2425.53 2377.03 988.00 464.55 -883.28 0.00 5977513.61 633550.43 MWD+IFR 2800.00 37.04 297.74 2505.35 2456.85 1047.63 492.59 -936.59 0.00 5977540.69 633496.63 MWD+IFR 2900.00 37.04 297.74 2585.18 2536.68 1107.26 520.62 -989.91 0.00 5977567.77 633442.83 MWD+IFR 3000.00 37.04 297.74 2665.00 2616.50 1166.89 548.66 -1043.22 0.00 5977594.84 633389.03 MWD+IFR 3100:00 37.04 297.74 2744.82 2696.32 1226.52 576.70 -1096.53 0.00 5977621.92 633335.23 MWD+IFR 3200.00 37.04 297.74 2824.65 2776.15 1286.15 604.74 -1149.84 0.00 5977648.99 633281.43 MWD+IFR 3300.00 37.04 297.74 2904.47 2855.97 1345.78 632.78 -1203.15 0.00 5977676.07 633227.63 MWD+IFR 3400.00 37.04 297.74 2984.30 2935.80 1405.41 660.81 -1256.46 0.00 5977703.14 633173.82 MWD+IFR 3500.00 37.04 297.74 3064.12 3015.62 1465.05 688.85 -1309.77 0.00 5977730.22 633120.02 MWD+IFR 3600.00 37.04 297.74 3143.94 3095.44 1524.68 716.89 -1363.08 0.00 5977757.29 633066.22 MWD+IFR 3700.00 37.04 297.74 3223.77 3175.27 1584.31 744.93 -1416.40 0.00 5977784.37 633012.42 MWD+IFR 3800.00 37.04 297.74 3303.59 3255.09 1643.94 772.97 -1469.71 0.00 5977811.44 632958.62 MWD+IFR 3900.00 37.04 297.74 3383.41 3334.91 1703.57 801.01 -1523.02 0.00 5977838.52 632904.82 MWD+IFR 4000.00 37.04 297.74 3463.24 3414.74 1763.20 829.04 -1576.33 0.00 5977865.59 632851.02 MWD+IFR 4100.00 37.04 297.74 3543.06 3494.56 1822.83 857.08 -1629.64 0.00 5977892.67 632797.21 MWD+IFR 4200.00 37.04 297.74 3622.88 3574.38 1882.46 885.12 -1682.95 0.00 5977919.74 632743.41 MWD+IFR 4300.00 37.04 297.74 3702.71 3654.21 1942.10 913.16 -1736.26 0.00 5977946.82 632689.61 MWD+IFR 4400.00 37.04 297.74 3782.53 3734.03 2001.73 941.20 -1789.57 0.00 5977973.89 632635.81 MWD+IFR 4500.00 37.04 297.74 3862.35 3813.85 2061.36 969.23 -1842.89 0.00 5978000.97 632582.01 MWD+IFR 4600.00 37.04 297.74 3942.18 3893.68 2120.99 997.27 -1896.20 0.00 5978028.04 632528.21 MWD+IFR 4700.00 37.04 297.74 4022.00 3973.50 2180.62 1025.31 -1949.51 0.00 5978055.12 632474.41 MWD+IFR 4800.00 37.04 297.74 4101.82 4053.32 2240.25 1053.35 -2002.82 0.00 5978082.20 632420.61 MWD+IFR 4900.00 37.04 297.74 4181.65 4133.15 2299.88 1081.39 -2056.13 0.00 5978109.27 632366.80 MWD+IFR 5000.00 37.04 297.74 4261.47 4212.97 2359.51 1109.43 -2109.44. 0.00 5978136.35 632313.00 MWD+IFR 5100.00 37.04 297.74 4341.29 4292.79 2419.15 1137.46 -2162.75 0.00 5978163.42 632259.20 MWD+IFR 5200.00 37.04 297.74 4421.12 4372.62 2478.78 1165.50 -2216.06 0.00 5978190.50 632205.40 MWD+IFR 5300.00 37.04 297.74 4500.94 4452.44 2538.41 1193.54 -2269.38 0.00 5978217.57 632151.60 MWD+IFR 5400.00 37.04 297.74 4580.76 4532.26 2598.04 1221.58 -2322.69 0.00 5978244.65 632097.80 MWD+IFR 5500.00 37.04 297.74 4660.59 4612.09 2657.67 1249.62 -2376.00 0.00 5978271.72 632044.00 MWD+IFR 5600.00 37.04 297.74 4740.41 4691.91 2717.30 1277.65 -2429.31 0.00 5978298.80 631990.20 MWD+IFR 5700.00 37.04 297.74 4820.23 4771.73 2776.93 1305.69 -2482.62 0.00 5978325.87 631936.39 MWD+IFR 5800.00 37.04 297.74 4900.06 4851.56 2836.56 1333.73 -2535.93 0.00 5978352.95 631882.59 MWD+IFR 5900.00 37.04 297.74 4979.88 4931.38 2896.20 1361.77 -2589.24 0.00 5978380.02 631828.79 MWD+IFR 6000.00 37.04 297.74 5059.70 5011.20 2955.83 1389.81 -2642.55 0.00 5978407.10 631774.99 MWD+IFR 6100.00 37.04 297.74 5139.53 5091.03 3015.46 1417.85 -2695.87 0.00 5978434.17 631721.19 MWD+IFR 6200.00 37.04 297.74 5219.35 5170.85 3075.09 1445.88 -2749.18 0.00 5978461.25 631667.39 MWD+IFR 6300.00 37.04 297.74 5299.17 5250.67 3134.72 1473.92 -2802.49 0.00 5978488.32 631613.59 MWD+IFR 6400.00 37.04 297.74 5379.00 5330.50 3194.35 1501.96 -2855.80 0.00 5978515.40 631559.78 MWD+IFR 6500.00 37.04 297.74 5458.82 5410.32 3253.98 1530.00 -2909.11 0.00 5978542.48 631505.98 MWD+IFR 6600.00 37.04 297.74 5538.64 5490.14 3313.61 1558.04 -2962.42 0.00 5978569.55 631452.18 MWD+IFR 6700.00 37.04 297.74 5618.47 5569.97 3373.25 1586.07 -3015.73 0.00 5978596.63 631398.38 MWD+IFR 6800.00 37.04 297.74 5698.29 5649.79 3432.88 1614.11 -3069.04 0.00 5978623.70 631344.58 MWD+IFR 6900.00 37.04 297.74 5778.11 5729.61 3492.51 1642.15 -3122.36 0.00 5978650.78 631290.78 MWD+IFR 7000.00 37.04 297.74 5857.94 5809.44 3552.14 1670.19 -3175.67 0.00 5978677.85 631236.98 MWD+IFR 7100.00 37.04 297.74 5937.76 5889.26 3611.77 1698.23 -3228.98 0.00 5978704.93 631183.18 MWD+IFR 7200.00 37.04 297.74 6017.58 5969.08 3671.40 1726.26 -3282.29 0.00 5978732.00 631129.37 MWD+IFR 7300.00 37.04 297.74 6097.41 6048.91 3731.03 1754.30 -3335.60 0.00 5978759.08 631075.57 MWD+IFR 7400.00 37.04 297.74 6177.23 6128.73 3790.66 1782.34 -3388.91 0.00 5978786.15 631021.77 MWD+IFR 7500.00 37.04 297.74 6257.05 6208.55 3850.30 1810.38 -3442.22 0.00 5978813.23 630967.97 MWD+IFR 7600.00 37.04 297.74 6336.88 6288.38 3909.93 1838.42 -3495.53 0.00 5978840.30 630914.17 MWD+IFR Went 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S 1S Sperry-Sun BP Planning Report Company: BP Amoco Date: 4/21/2008 Time: 15:57:47 Page: 4 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: Plan R-41, True North Site: PB R Pad Vertical (TVD) Reference: 28. 5KB+20.OOGL48.5 Well: Plan R-41 Section (VS) Reference: Well (O.OON,O.OOE,289.62Azi) Wellpath: Plan R-41 Survey Calcu lation Method: .Minimum Curvature Db: Oracle Survey MD Incl Azim TVD Sys TVD VS N/S E/W DLS MapN MapE TooUCo ft deg deg ft ft ft ft ft deg/1DOft ft ft 7700.00 37.04 297.74 6416.70 6368.20 3969.56 1866.46 -3548.85 0.00 5978867.38 630860.37 MWD+IFR 7800.00 37.04 297.74 6496.52 6448.02 4029.19 1894.49 -3602.16 0.00 5978894.45 630806.57 MWD+IFR 7900.00 37.04 297.74 6576.35 6527.85 4088.82 1922.53 -3655.47 0.00 5978921.53 630752.77 MWD+IFR 8000.00 37.04 297.74 6656.17 6607.67 4148.45 1950.57 -3708.78 0.00 5978948.60 630698.96 MWD+IFR 8100.00 37.04 297.74 6735.99 6687.49 4208.08 1978.61 -3762.09 0.00 5978975.68 630645.16 MWD+IFR 8200.00 37.04 297.74 6815.82 6767.32 4267.72 2006.65 -3815.40 0.00 5979002.76 630591.36 MWD+IFR 8300.00 37.04 297.74 6895.64 6847.14 4327.35 2034.68 -3868.71 0.00 5979029.83 630537.56 MWD+IFR 8400.00 37.04 297.74 6975.46 6926.96 4386.98 2062.72 -3922.02 0.00 5979056.91 630483.76 MWD+IFR 8500.00 37.04 297.74 7055.29 7006.79 4446.61 2090.76 -3975.34 0.00 5979083.98 630429.96 MWD+IFR 8600.00 37.04 297.74 7135.11 7086.61 4506.24 2118.80 -4028.65 0.00 5979111.06 630376.16 MWD+IFR 8700.00 37.04 297.74 7214.93 7166.43 4565.87 2146.84 -4081.96 0.00 5979138.13 630322.35 MWD+IFR 8800.00 37.04 297.74 7294.76 7246.26 4625.50 2174.58 -4135.27 0.00 5979165.21 630268.55 MWD+IFR 8900.00 37.04 297.74 7374.58 7326.08 4685.13 2202.91 -4188.58 0.00 5979192.28 630214.75 MWD+IFR 9000.00 37.04 297.74 7454.40 7405.90 4744.77 2230.95 -4241.89 0.00 5979219.36 630160.95 MWD+IFR 9100.00 37.04 297.74 7534.23 7485.73 4804.40 2258.99 -4295.20 0.00 5979246.43 630107..15 MWD+IFR 9200.00 37.04 297.74 7614.05 7565.55 4864.03 2287.03 -4348.51 0.00 5979273.51 630053.35 MWD+IFR 9300.00 37.04 297.74 7693.87 7645.37 4923.66 2315.07 -4401.83 0.00 5979300.58 629999.55 MWD+IFR 9400.00 37.04 297.74 7773.70 7725.20 4983.29 2343.10 -4455.14 0.00 5979327.66 629945.75 MWD+IFR 9500.00 37.04 297.74 7853.52 7805.02 5042.92 2371.14 -4508.45 0.00 5979354.73 629891.94 MWD+IFR 9600.00 37.04 297.74 7933.34 7884.84 5102.55 2399.18 -4561.76 0.00 5979381.81 629838.14 MWD+IFR 9700.00 37.04 297.74 8013.17 7964.67 5162.18 2427.22 -4615.07 0.00 5979408.88 629784.34 MWD+IFR 9800.00 37.04 297.74 8092.99 8044.49 5221.82 2455.26 -4668.38 0.00 5979435.96 629730.54 MWD+IFR 9900.00 37.04 297.74 8172.81 8124.31 5281.45 2483.30 -4721.69 0.00 5979463.03 629676.74 MWD+IFR 10000.00 37.04 297.74 8252.64 8204.14 5341.08 2511.33 -4775.00 0.00 5979490.11 629622.94 MWD+IFR 10100.00 37.04 297.74 8332.46 8283.96 5400.71 2539.37 -4828.32 0.00 5979517.19 629569.14 MWD+IFR 10200.00 37.04 297.74 8412.29 8363.79 5460.34 2567.41 -4881.63 0.00 5979544.26 629515.34 MWD+IFR 10300.00 37.04 297.74 8492.11 8443.61 5519.97 2595.45 -4934.94 0.00 5979571.34 629461.53 MWD+IFR 10400.00 37.04 297.74 8571.93 8523.43 5579.60 2623.49 -4988.25 0.00 5979598.41 629407.73 MWD+IFR 10401.34 37.04 297.74 8573.00 8524.50 5580.40 2623.86 -4988.96 0.00 5979598.77 629407.01 7" 10462.10 37.04 297.74 8621.50 8573.00 5616.63 2640.90 -5021.35 0.00 5979615.22 629374.32 TSAG 10500.00 37.04 297.74 8651.76 8603.26 5639.23 2651.52 -5041.56 0.00 5979625.49 629353.93 MWD+IFR 10554.60 43.22 294.63 8693.50 8645.00 5674.15 2666.98 -5073.12 11.90 5979640.38 629322.10 R-41 Geo- 10600.00 48.46 292.53 8725.12 8676.62 5706.63 2679.98 -5102.97 12.00 5979652.84 629292.03 MWD+IFR 10700.00 60.09 288.89 8783.42 8734.92 5787.64 2708.46 -5178.82 12.00 5979679.95 629215.68 MWD+IFR 10800.00 71.80 286.03 8824.12 8775.62 5878.72 2735.71 -5265.80 12.00 5979705.63 629128.24 MWD+IFR 10900.00 83.55 283.53 8845.42 8796.92 5975.88 2760.54 -5360.10 12.00 5979728.76 629033.51 MWD+IFR 10921.92 86.13 283.01 8847.39 8798.89 5997.58 2765.55 -5381.35 12.00 5979733.39 629012.18 Start Dir 1 ? 10954.80 90.00 282.22 8848.50 8800.00 6030.19 2772.72 -5413.41 12.00 5979739.99 628980.00 R-41 T1 11000.00 95.40 282.70 8846.37 8797.87 6074.97 2782.46 -5457.48 12.00 5979748.93 628935.76 MWD+IFR 11014.41 97.13 282.85 8844.80 8796.30 6089.19 2785.62 -5471.45 12.00 5979751.84 628921.74 MWD+IFR 11100.00 97.13 282.85 8834.18 8785.68 6173.53 2804.51 -5554.25 0.00 5979769.24 628838.62 MWD+IFR 11200.00 97.13 282.85 8821.78 8773.28 6272.06 2826.58 -5650.99 0.00 5979789.57 628741.50 MWD+IFR 11300.00 97.13 282.85 8809.37 8760.87 6370.60 2848.64 -5747.74 0.00 5979809.89 628644.39 MWD+IFR 11400.00 97.13 282.85 8796.97 8748.47 6469.13 2870.71 -5844.48 0.00 5979830.21 628547.27 MWD+IFR 11403.65 97.13 282.85 8796.51 8748.01 6472.73 2871.51 -5848.01 0.00 5979830.96 628543.73 End Dir : 1 1 11500.00 97.13 282.85 8784.56 8736.06 6567.66 2892.77 -5941.22 0.00 5979850.54 628450.16 MWD+IFR 11600.00 97.13 282.85 8772.16 8723.66 6666.20 2914.84 -6037.97 0.00 5979870.86 628353.04 MWD+IFR 11700.00 97.13 282.85 8759.75 8711.25 6764.73 2936.90 -6134.71 0.00 5979891.19 628255.93 MWD+IFR 11800.00 97.13 282.85 8747.35 8698.85 6863.27 2958.97 -6231.45 0.00 5979911.51 628158.81 MWD+IFR 11801.64 97.13 282.85 8747.14 8698.64 6864.88 2959.33 -6233.04 0.00 5979911.85 628157.22 MWD+IFR 11900.00 92.09 276.78 8739.24 8690.74 6961.41 2976.01 -6329.57 8.00 5979926.79 628060.41 MWD+IFR 11940.55 90.00 274.30 8738.50 8690.00 7000.73 2979.92 -6369.92 8.00 5979929.98 628020.00 R-41 T2 12000.00 85.25 274.55 8740.96 8692.46 7058.04 2984.50 -6429.13 8.00 5979933.50 627960.73 MWD+IFR Went 7S 7S 7S 7S 7S 7S 1S 1S 1S 7S 1S 1S 7S 1S 1S 1S 1S 1S 1S 1S 1S 1S 7S 1S IS 1S 1S 1S 1S Y 1S 1S IS 1S 1 1S 1S IS 1S IS IS GO 1S 1S 1S 1S 1S 1S 1S Sperry-Sun BP Planning Report Company: BP Amoco Date: 4/21/2008 Timer 15:57:47 Page: 5 Field: Prudhoe Bay Co-ordinate(NE) Reference:.. Well: Plan R-41, Tru e North Site: PB Read Vertical (TVD) Reference: . 28. 5Kg+20.OOGL 48 .5 Well: Plan R-41 Section (VS) Reference: Well (O.OON,O.OOE,289.62Azi) Wellpath: Plan R-41 Survey Calculation Method: Minimum Curvature Db: Oracfe Survey MD Incl Azim TVD Sys TVD VS N/S E/W DLS MapN MapE Tool/Co ft deg deg ft ft ft ft ft deg/100ft ft ft 12009.45 84.50 274.59 8741.81 8693.31 7067.12 2985.25 -6438.51 8.00 5979934.08 627951.33 MWD+IFR 12100.00 84.50 274.59 8750.49 8701.99 7154.17 2992.47 -6528.35 0.00 5979939.69 627861.38 MWD+IFR 12190.81 84.50 274.59 8759.20 8710.70 7241.47 2999.71 -6618.45 0.00 5979945.30 627771.17 Start Dir 8. 12200.00 84.50 274.59 8760.08 8711.58 7250.31 3000.44 -6627.57 0.00 5979945.87 627762.04 MWD+IFR 12300.00 84.50 274.59 8769.68 8721.18 7346.44 3008.41 -6726.79 0.00 5979952.06 627662.70 MWD+IFR 12398.69 84.50 274.59 8779.14 8730.64 7441.31 3016.27 -6824.71 0.00 5979958.16 627564.67 End Dir : 1 12400.00 84.50 274.59 8779.27 8730.77 7442.57 3016.37 -6826.01 0.00 5979958.25 627563.37 MWD+IFR 12500.00 84.50 274.59 8788.86 8740.36 7538.70 3024.34 -6925.23 0.00 5979964.43 627464.03 MWD+IFR 12556.31 84.50 274.59 8794.26 8745.76 7592.84 3028.83 -6981.11 0.00 5979967.92 627408.09 MWD+IFR 12600.00 87.22 272.39 8797.42 8748.92 7634.69 3031.48 -7024.59 8.00 5979969.79 627364.56 MWD+IFR 12644.59 90.00 270.16 8798.50 8750.00 7676.99 3032.47 -7069.15 8.00 5979969.98 627320.00 R-41 T3 12700.00 92.96 273.46 8797.07 8748.57 7729.72 3034.22 -7124.50 8.00 5979970.74 627264.63 MWD+IFR 12757.72 96.04 276.91 8792.53 8744.03 7785.42 3039.42 -7181.79 8.00 5979974.90 627207.26 MWD+IFR 12800.00 96.04 276.91 8788.08 8739.58 7826.44 3044.48 -7223.53 0.00 5979979.21 627165.44 MWD+IFR 12900.00 96.04 276.91 8777.56 8729.06 7923.45 3056.44 -7322.25 0.00 5979989.40 627066.53 MWD+IFR 12945.49 96.04 276.91 8772.77 8724.27 7967.57 3061.88 -7367.16 0.00 5979994.04 627021.53 Start Dir 8. 13000.00 96.04 276.91 8767.03 8718.53 8020.45 3068.41 -7420.97 0.00 5979999.60 626967.61 MWD+IFR 13100.00 96.04 276.91 8756.51 8708.01 8117.46 3080.37 -7519.69 0.00 5980009.79 626868.70 MWD+IFR 13108.73 96.04 276.91 8755.59 8707.09 8125.93 3081.42 -7528.31 0.00 5980010.68 626860.07 End Dir : 1 13200.00 96.04 276.91 8745.98 8697.48 8214.46 3092.34 -7618.42 0.00 5980019.98 626769.79 MWD+IFR 13231.45 96.04 276.91 8742.67 8694.17 8244.98 3096.10 -7649.47 0.00 5980023.19 626738.68 MWD+IFR 13300.00 90.81 275.27 8738.57 8690.07 8311.48 3103.36 -7717.48 8.00 5980029.22 626670.55 MWD+IFR 13310.58 90.00 275.02 8738.50 8690.00 8321.72 3104.31 -7728.02 8.00 5980029.98 626660.00 R-41 T4 R 13400.00 83.24 272.68 8743.77 8695.27 8407.57 3110.30 -7817.02 8.00 5980034.38 626570.91 MWD+IFR 13414.11 82.17 272.31 8745.56 8697.06 8420.94 3110.91 -7831.00 8.00 5980034.74 626556.92 MWD+IFR 13500.00 82.17 272.31 8757.26 8708.76 8502.17 3114.34 -7916.02 0.00 5980036.64 626471.86 MWD+IFR 13597.47 82.17 272.31 8770.54 8722.04 8594.36 3118.22 -8012.51 0.00 5980038.79 626375.33 Start Dir 8. 13600.00 82.17 272.31 8770.88 8722.38 8596.75 3118.32 -8015.01 0.00 5980038.85 626372.82 MWD+IFR 13641.57 82.17 272.31 8776.54 8728.04 8636.07 3119.98 -8056.16 0.00 5980039.77 626331.65 MWD+IFR 13700.00 86.66 270.98 8782.23 8733.73 8691.36 3121.65 -8114.27 8.00 5980040.39 626273.52 MWD+IFR 13743.55 90.00 270.00 8783.50 8735.00 8732.49 3122.02 -8157.80 8.00 5980039.98 626230.00 R-41 T5 re 13792.63 93.90 270.49 8781.83 8733.33 8778.75 3122.23 -8206.84 8.00 5980039.31 626180.97 End Dir : 1 13800.00 94.48 270.56 8781.29 8732.79 8785.69 3122.30 -8214.19 8.00 5980039.24 626173.62 MWD+IFR 13855.87 98.91 271.13 8774.78 8726.28 8838.21 3123.11 -8269.65 8.00 5980039.07 626118.16 MWD+-FR 13900.00 98.91 271.13 8767.94 8719.44 8879.56 3123.97 -8313.25 0.00 5980039.14 626074.56 MWD+IFR 14000.00 98.91 271.13 8752.45 8703.95 8973.25 3125.92 -8412.02 0.00 5980039.32 625975.77 MWD+IFR 14034.97 98.91 271.13 8747.03 8698.53 9006.01 3126.60 -8446.56 0.00 5980039.38 625941.23 Start Dir 8. 14100.00 98.91 271.13 8736.95 8688.45 9066.94 3127.86 -8510.79 0.00 5980039.49 625876.99 MWD+IFR 14200.00 98.91 271.13 8721.45 8672.95 9160.63 3129.81 -8609.56 0.00 5980039.66 625778.21 MWD+IFR 14241.77 98.91 271.13 8714.98 8666.48 9199.76 3130.62 -8650.82 0.00 5980039.74 625736.94 End Dir : 1 14300.00 98.91 271.13 8705.96 8657.46 9254.32 3131.75 -8708.34 0.00 5980039.84 625679.42 MWD+IFR 14380.40 98.91 271.13 8693.50 8645.00 9329.64 3133.32 -8787.75 0.00 5980039.98 625600.00 R-41 T6 re Went 7S 1S 0 7S 7S i9 7S 7S 7S 1S 1S 1S 1S 7S 0 1S 1S 0 1S 1S 1S W'F.LL DF.TAIti ANTI-COLLISION SETTINGS COM1IPANY UETAILS SDRVEY PROGRAM Nanre ~ N/-S FJ-W Nunhing Faslinp LatiluJe LonginWe SWI BP Amoco Depth Fm Deprh To Sravay/Plmr Tool Inte111olation McihuJ:MD lntcrval: 25.00 Plan R-41 1417.77 ~?979.411 SY7711G51C 434441 B7 70'2U'42,99YN 14%°5471.37NW N/A Dl'.Ptl1 Range Fmn7: 2g.$0 T0: 14380.40 Calcula0un M hal Muunnm Curvacwc 2&.511 8UII.UU PWn •J. R-41 Wp 2.0 VX cn-GYRO~SS Maximum Range. 163$.19 Reference: Plan: R-0I Wp 2.U F.mi Sy:r ISCWSA Nnunu NlsU.40 clan ~d: R-al Wp 2.U VN MP'U JFkMs Swn M h J Trav Cylindci Nonh F.iror SwTaa•: F.Ilipriwl ~ Caring Warning MarhoJ: kolas IiasaJ 160 150 125 100 75 0 5 00 125 150 160 Travelling Cylinder Azimuth (TFO+AZI) [deg] vs Centre to Centre Separation [SOft/in] 'olour To MD rlan k-0' 250 Rig: - SOO kef. Dahun: 2A.SKR ~20.OOGL 48.Sllfl - 75O V.Senion Orison (higm Starting l ~ W S FJ N' F TVD - 1000 Ang e - - rom 2%Y Ull II INI ' 6 " U XSU - 1250 . . _ - _ 1500 - 1750 - 2000 - 2250 - 2SOO LEGENU - 2750 ~ MIN (M~041. Mujur ILSt: - M-151M-lal. Mujur kick - 3000 ~ M~I61M-IG1. M1lujur kill: - 3250 - M-IV II'lun M-IYlik Mainr kisR - M1L7nA rnlaoAr M1lajm Risk ----~ 3500 . - Ko Irln2a il~~~rn~i~ - 3750 ( ~ ~k:,k k-01 (k~nll. M1lujur kisk -- _ 4000 - R~n2 (R-U21, Mazur kuk R-f17 k-1171 Mu nr kick i ( . M1I , ~ R A - OOOO R-''UA A M1IeIu ~ ki .k R ' 82SO . R211 (R-2U1. hIu7or kick o OSOO k-25A (k 25AI. M1lajur kick R-75 (k-_'S1. M:!iur kisk - 87SO - R-_'X Ik-2N1. Mujur kick ft-2YA fk--?vAl. Maiur kisk R 7Y R 'Y M ki k - 9000 I ~ ujur s I. JU 111 - k R M Ri k 9250 s - : aur 1. I __ k-J51k-351. Major kisk - 9500 k3Y Ik-IYAIM1 M1IujuRki.k 9750 S-L'lS-I'_I. hlajar kisk ' 10000 Ian S-1461. Major Risk - S-14 Q - s w Is-lal. Ma;nr Rak ti-IA (SI4AI, Majar kirk - rlan Rrl - R-0I Wp 2.U Removed. I ;an for Plans le @ No Errors SECTION DETAILS Inc Azi NU -N/~S -EI-W ULeg TFace VSic Tm'get 0.1X) 0.011 2&.511 I1.IN1 U.Iq O.W O.W ODU 11.1X1 (IW 250.W O.W U.W II.W U.W O.W 7U4 29774 17N7.N7 71Y.Ifi -054.74 7'_5 U.W SUN.65 7.ua 2YVa A6s2.n 26sL6s -so41.An o.W n.W s639so VI.W 7N2 ~~ N%4R511 777'_.7? -541741 12.W -IY.IN 6070.IY k-41 TI 7.11 2X2.X5 SX4i.8U _'7ASb2 -547145 12-W 4YN 4089.19 7.13 7X2.X5 X747.19 2YSY.33 b233.IW lkW II.W 6N64.NN U.W ^_74.3U A77%-50 247y 92 476y 42 RW -179.53 71NN/.7] R--0I T7 35U 274.59 N741 tl1 2YN5.25 -643&.x1 tlW 17G.Y7 7067.12 IU 1255671 84.50 274.59 879026 302R-83 fi9N 1-II O.W O.W 759'_.X6 II 1'_(*A4.SY W.INI '_711.14 87Y8.SU 3U3247 -7WY.15 8.W -3A.Y4 7676.4Y k-0173 12 127x7.72 Y6.04 27691 8792.57 3UlY A2 -71%1.79 8110 4N 1111 77X5.42 I7 17211.45 YG.04 77491 8742.47 3UYG.10 -7649.47 O.W 0.011 8244.YX 14 13]10.&8 W.W 375112 8738.50 Ina 11 -7778.07 X,(10 -IG2sR R121.77 k-0I r4 Ruvl IS 11413-II X3-I7 772.31 X74S.S6 311 U.91 -7831.1X1 8.W -161.011 X420.Y4 I(, Il(NI.57 X2.17 '_7231 &776.54 311Y9% -N056.16 O.UtI U.ql %636.07 I7 1174355 911.W 270.W X783.SU 31221)2 -BIS7.X0 8.W -IG.4d 8732.4Y k-0I TS mvI IX 17%55.X7 9X YI 271.11 R774-7N 312]-11 -8769.65 N.W 7.16 XN3N.21 Sperry-Sun Anticollision Report Company: BP Amoco Date:. 4/21/2008 Time: 15:52:09 Page: 1 Field: Prudhoe Bay Reference Site: PB R Pad Co-ordinate(NE) References . Well: Plan R-41, True North Reference Well: Plan R-41 Vertical (TVD) Reference: 28.5KB+20.OOGL 48.5 Reference Wellpath: Plan R-41 Db: Oracle GLOBAL SCAN APPLIED: All wellpaths within 200'+ 100/1000 of reference -There are Tlr"aldf$sadls in this ti2titlci pal Plan & PLANNED PROGRAM Interpolation Method: MD Interval: 25.00 ft Error Model: ISCWSA Ellipse Depth Range: Maximum Radius: 1 28.50 to 635.19 ft 14380.40 ft Scan Method: Error Surface: Trav Cylinder North Ellipse + Casing Survey Program for Definitive Wellpath Date: 1/8/2008 Validated: No Version: 0 Planned From To Survey Toolcode Tool Name ft ft 28.50 800.00 Planned : R-41 Wp 2.0 V8 CB-GYRO-SS Camera based gyro single shots 800.00 14380.40 Planned : R-41 Wp 2.0 V8 MWD+IFR+MS MWD +IFR + Multi Station Casing Points MD TVD Diameter Hole Size Name ft ft in in 10401.34 8573.00 7.000 8.500 7" 14769.64 0.00 4.500 6.125 4 1 /2" Summary <_---__-.-- Offset Wellpath ------> Reference Offset Ctr-Ctr No-Go Allowable Site Well Wellpath MD MD Distance Area Deviation Warning ft ft ft PB M Pad M-04 M-04 V1 86701 110 53.40 836.99 -283.59 FAIL: Major Risk PB M Pad M-14 M-14 V1 0 832.66 464.10 368.55 Pass: Major Risk PB M Pad M-16 M-16 V1 12435.77 10825.00 530.62 304.93 225.69 Pass: Major Risk PB M Pad M-19 Plan M-196 V10 Plan: M 14300.41 11600.00 1105.94 262.42 843.52 Pass: Major Risk PB M Pad M-20A M-20A V1 12161.02 11325.00 1148.65 251.34 897.31 Pass: Major Risk PB M Pad M-26 M-26 V3 Out of range PB R Pad R-01 Plan R-01A VO Plan: R- 299.44 300.00 71.20 7.29 63.91 Pass: Major Risk PB R Pad R-01 R-01 V1 317.74 325.00 71.43 7.56 63.87 Pass: Major Risk PB R Pad R-02 R-02 V1 291.22 300.00 183.45 5.83 177.62 Pass: Major Risk PB R Pad R-07 R-07 V3 665.19 675.00 27.98 13.20 14.77 Pass: Major Risk PB R Pad R-07 R-07A V2 665.19 675.00 27.98 13.20 14.77 Pass: Major Risk PB R Pad R-20A R-20A V2 10706.98 11325.00 893.60 294.72 598.88 Pass: Major Risk PB R Pad R-20 R-20 V6 10765.52 11400.00 878.64 298.21 580.43 Pass: Major Risk PB R Pad R-25A R-25A V3 10559.19 11775.00 1001.97 301.58 700.39 Pass: Major Risk PB R Pad R-25 R-25 V1 352.81 375.00 1166.94 7.62 1159.32 Pass: Major Risk PB R Pad R-28 R-28 V1 800.59 800.00 44.43 18.73 25.70 Pass: Major Risk PB R Pad R-29A R-29A V1 271.05 275.00 148.55 5.79 142.77 Pass: Major Risk PB R Pad R-29 R-29 V1 271.05 275.00 148.55 5.79 142.77 Pass: Major Risk PB R Pad R-30 R-30 V1 8467.47 8825.00 100.05 235.04 -134.99 FAIL: Major Risk PB R Pad R-35 R-35 V1 269.86 275.00 38.77 5.49 33.28 Pass: Major Risk PB R Pad R-39 R-39 V1 312.41 325.00 110.72 5.62 105.10 Pass: Major Risk PB R Pad R-39 R-39A V2 312.41 325.00 110.72 5.62 105.10 Pass: Major Risk PB S Pad S-12 S-12 V1 14288.84 11700.00 1333.63 919.76 413.88 Pass: Major Risk PB S Pad S-14 Plan S-146 VO Plan: PI 12845.58 12850.00 5.07 671.47 -666.40 FAIL: Major Risk PB S Pad S-14 S-14 V9 Out of range PB S Pad S-14 S-14A V6 14254.86 11400.00 69.59 916.85 -847.26 FAIL: Major Risk Site: PB M Pad Well: M-04 Rule Assigned: Major Risk Wellpath: M-04 V1 Inter-Site Error: 0.00 ft Reference Offset Semi-Major Axis Ctr-Ctr No-Go 'Allowable MD TVD MD TVD Ref Offset TFO+AZI TFO-HS Casing/HSDistance Area Deviation Warning ft ft ft ft ft ft deg deg in ft ft ft 8673.50 7193.78 8925.00 6913.74 34.75 211.27 224.13 286.39 1623.62 471.24 1152.39 Pass 8687.91 7205.29 8950.00 6930.50 34.82 212.27 224.02 286.28 1603.44 471.64 1.131.80 Pass 8702.26 7216.74 8975.00 6947.25 34.88 213.28 223.90 286.16 1583.24 471.99 1111.24 Pass 8716.55 7228.15 9000.00 6963.99 34.95 214.29 223.78 286.04 1563.00 472.29 1090.71 Pass 8730.79 7239.51 9025.00 6980.71 35.02 215.30 223.65 285.91 1542.75 472.47 1070.27 Pass 8744.98 7250.84 9050.00 6997.44 35.08 216.31 223.52 285.77 1522.48 472.59 1049.89 Pass 8759.12 7262.12 9075.00 7014.17 35.15 217.32 223.38 285.63 1502.19 472.64 1029.55 Pass 8773.21 7273.37 9100.00 7030.90 35.21 218.33 223.23 285.49 1481.89 472.61 1009.28 Pass 6050000 r 6000000 5950000 5900000 5850000 EPA Aquifer Exemption - 40 CFR 147.102 (b)(3) 400000 500000 600000 700000 sooooo Alaska Department of Natural Resources Land Administration System • See Township, Range, Section and Acreage? ~' Yes ~° No New Search ~ Page 1 of~` !-A p~e~ I Case Abstract ~ Case Detai! ~ Land Abstract 1~[le: ~I)[. 2v2~7 Search for 5~:~tu. Plat Updates 1~ cal I (i l)%~(1Oti Custonaer•: 000107377 BP EXPLORATION (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN LAND MANAGER- ALASKA ANCHORAGE AK 995196612 C'asc~ 71~e: ;'~~ OIL c~: GAS LEASE CAMP D:VR Ujtit: 780 OIL AND GAS File Locutnn~: DOG DIV OIL AND GAS C~cce Stuttss: 35 ISSUED Status Dace: 08/1 1/1965 Total Acres: 2560.000 Duce h~itiatea': OS/?8/1965 Office of PriTna~~~Respof~sibility: DOG DIV OIL AND GAS Last Transaction Dute: 12/0/2006 Case Subtv~~e: t~.~ NORTH SLOPE Lust Transaction: AA-NRB ASSIGNMENT APPROVED I~Ieridian.~ [_' 7~~ir~rsf~r~,.~ UI_'N R~nr,~~~~.~ Ol~'I~ ~~c°~~il~~ri: ~i ti'~~c~iun,1~~~~es: 640 Search. ~!_ ._~ V~rl~/r~nr.~ l 7uu~t~{ti/~: Ul?N I~uji,r~r: UI~I 5~~~~~~i~,~t.~ ~'6 ~"~~~~Ii~~n_l<r~es: ~(,-~Q ,ll~~ri~liun: t_' 7inrn~~itip: O1 'N K~~n<rc~.~ (11 ~I~: ,1~-~~Irr~~t.~ 3> ti'c~~~~iufl ,lrrc~~: (,-1U l/~Nidian.~ ['~ 7i~~r~t~tiP: Ol ~N R~ri1;~r.~ (7I ~I_ .~~~~~ii~~u: 3(~ :1'~~~°iiu~r lcr~~r: f,-1O Lc~~il I)cscri~~ti~n 0~-2<4-196 * * * SALE NOTICE LEGAL DESCRIPTION * ~~ Cl ~/- ~? 1?N 12E U~lI2~.2G, 3~, 36 2560.00 0-t-01-19?7*** UNITIZED LEGAL DESCRIPTION*** PRUDHOE BAY UNIT ESTABLISHED T. 12 N, R. 1ZE., U~1 http://www. der. state. ak.us/las/Case_Summary.cfm?FileType=ADL&FileNumber=28257&... 10/2/2008 Alaska Department of Natural Resources Land Administration System Page l of,~' • - t' ;;crr~e€'~ ~earu'~ State Gabins ~~#LI~ ~.1 ~ ! AS ran~~ I Case Abstract I Case Detail ~ Land Abstract _-. File: :~UL 25279 ''~~~ S~:<:r~::h for Status P -~` ~~~~~;~tss \~ cif IOi(i' ~lll)ti Cnsto~ner: 000107377 BP LXPLOR~~~11(_)N (ALASKA) INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995 1 966 12 Case Type: ~~L ~~ O[L & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Locution: DOG DIV OIL AND GAS Case Statz~s: 35 LSSUED Status Dale: 08/19/1965 Total Acres: 2459.000 Date Initiated: 05/28/1965 Offic°e of~Prinurr~~ Responsibility: DOG DN O IL AND GAS Last Tr•ansuctian Date: 12/04/2006 Case Snbt}pe : S NORTH SLOPE Last Transuction: AA-NRB ASSIGNMENT APP ROVED [L1e~°idian: [: I~nr~~~{trj~: OI ~~ R<rir,~~~.~ Ol_~{~: ,ti~c~~_~li~~rt: 29 ~'~~clioftAcres': 640 Searc;i =°:~t~. V~~r-i~Ii~nr.~ t` Townsluj~: 012~i R~rt~Lc°: 013E S'c~cti~ut: _~U Sr~~ti~~~l l~~res: 588 ~U~~t~i~licrn.~ t~ Totivnshr~~: Q12N lZange: 013E Sectir~r~.~ ~I Sr~~~iure_Irrc~: ~~)1 Nleridrur~ ~ t ~ Townshf~~: U I ,~ R<rnge: 013E Secti~~~i: -~? ti'~~<<ron Acf~c~e: ~~~0 Lega! Descript~n 0~-28-196 * * * SALE NOTICE LEGAL DESCRIPTION * *'" Cl4-9U T12N, R13E, UM29, 30, 31, 32 2,459.00 0-1-01-199i *'k'k"* UI~IlILF,DAND LFA.SE LECTAL DESC'RIPTIO.~r ***~***** ENTIRE LEASE COMii~IITTED TO PRUDHOE BAY UNIT PRUDHOE BAY UNIT TRACT 23 http://www. dnr. state.ak.us/las/Case_Summary. cfm?FileType=ADL&FileNumber=28279&... 10/2/2008 TRANSMITTAL LETTER CHECKLIST WELL NAME f ~~ ,e- ~~ PTD# ~O~Y-/~5~3 / Developments Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: /-''.PO'D,~OE' ~Y POOL: ~.tq</D.yoE ~,~y ~ ,- Circle Appropriate Letter /Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) ~~ FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in API number permit No. , API No. 50- - are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the picot 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 AI! 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 throu h tar et 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 weU) until after (Comoanv Narae) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Comoanv Name) must contact the Commission to obtain advance approval of such water well testing ro am. Rev: I/I 18008 WELL PERMIT CHECKLIST Field & Pcol PRUDHOE BAY, PRUDHOE OIL -640150 Well Name: PRUDHOE BAY UNIT R•41 Program DEV Well bore seg ^ PTD#:2081530 Company BP EXPLORATION (,4LASKA) INC Initial Class/Type DEV ! PEND GeoArea 890 Unrt 11650 ONOff Shore ~__ Annular Disposal ^ Administration 1 Permikfeeaitached-- --- -- ---- -- -- --- ~--- ----- - -- - - --- - ------ -- -- - ----- 2 Lease numberapprepriate ----- - -- - -- ----- Yes---- --- -- - --- - ------- --- - -- - - - 3 Uniquewellnameandnumber- ----- - --- - -- - --Yes - - ----- - -- - ------ - ------ -- -- - - 4 WeIIIQCatedina_defnedpeal____-_____.______-_--------- ---------Yes____. _-PradhoeBaygiiPpoi.__-______ -------------------------------------------- 5 Well locatedproperdisiencefromdritlkngunft-boundary--------------- ---- - --Yes----- ---------------------------------------------------------.----_---- 6 We(Ilocatedproperdistancefromoiherwells-_-_-__---___--_- ---_-_---Yes----- ----------------------------------------------------------- --- 7 Suflicientacreage_ayailabiein_drilling>lnit_________---_-----_-. -_---_--Yes___- --2569 acres..-------.---------------------------------------- 8 Ifdeviaied,is-wellborePlatincluded----- ~ -- -- - --- --- --Yes. - ---- -- --- ------ - -- - ----- - -- -- 9 Qperatoronlyeffectedparty-- -- --- - --- - -- - - ---- -Yes-- - ---- - --- --------- ---- - --- -- - --- -- 10 Operatotbas-appropriatebond'tn-fQrcB------------------------ --------Yes----- --9lanketBond#6194193•--------.---------------------------_.------------- 11 Pe[InltQanbeiasuedwith4u3COnserYati9norder. ---- -- -- - -- - --Yes-- - ---- --- -- - --------- - - ----- ---------- --------- Appr Date 12 Permitr~nbeissUSdwithQUtadminist[atiYe_approval---------------- ---------Yes----- ---------------.-----------...----------------------------.---------- 13 CenpermitbaapRrGVedbef4re1b-daywait----- ----------------- ---------Yes----- --------------------.----------------------------------...--------- ACS 101612008 14 WaIIIQCatedwithinareaandstrataauthorizedbyinlecti9nOrde[#(PutIQ#in-comments)(FOr- NA----- -----------------------------------------------------------------__--- 15 A1lwelis_Within!(4_mi~e_araeofreyiewidentfied(Forservicewellgnly)------ --------- NA----- ------------------------------------------------------------------- 16 Pte-Producedinje~or.duraUonofpre-Aroducti9ntessthan3months-(For service wslioniy)--NA----- ---------------------------------.------------------------------ 17 NonCOrnen.gasc~nformslQAS31.05,0304•t.A).Q.2.A•D) - - - - -- NA- - ------ ----- -- - ---------- - -- ----- ---- -- - ------ Englneerfng 18 Conductor striflg-Rrwlded- ----- - -- -- - ---- ---- Yes. -- -- -- -- - ------ - ------- - -- --- -- - ------ 19 Su[facecasingprOtectsallkAOwnUSDWs---------------------- --------- NA----- --AllaquifersBxemPted,-AE01.-_------------------------------..-----.--------- 20 CMT_vo(adequaiet9circulate_on_conductor~surf_csg_____--_--_ _-_--_--Yes---- ---------------------------------------------------.---------------- 21 CMT vol adequate io tie-in long string tosurf csg- - - - - - - - - - - N0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22 CMT-will coyerahknown_productiveh°rizarts____--_------__---- __- __--Yes_-- ------------------------------------------- ---.--------------------- 23 CasingdesynsadequaieforC~T B&-Permafrost-- - - --- -- - --- Yes -- -- -- --- - ------- - --------- - -- -- -- - -- -- 24 Adequate tankage_or reserve pit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Yes - _ - - - _ Rig equipped with steel pits, No reserve pit planned._ All wasle.t4 aPRrQV_ed disposal well(s). _ - - - - - - _ - - . . 25 Ifare-drill,has_a40.403forabandonmenibeeDapprQved------------- --------- NA---- -------.------------.----------------------------------------------- 26 Adequate_Wellbore separatjon-proposed_ _ - - - _ - - - - - - - - - - - - - - - - - - - - - - -Yes _ _ _ _ _ _ -Proximity analysis pertormed, Traveling cylinder path calculated, Gyros likely in surface hole. - _ - - - _ - 27 Ifdiverterrequited,doesiirneetragulations--- -- -- -- ---- ----Yes-- ------ - -- - ----------- - ---- -- - -~ ----- - Appr Date 26 Drilling fluid program schematic & equip list adequate- - - - - - - - - - - - - - - - - - - - - - Yes _ - - - _ - -Maximum expected formation pressure 7,tEMW~ M1K planned up ko 10.7ppg in 8.314" hole and 8.5 ppg_in zQne._ TEM 10n12008 29 BOPIS,_dotheymeetregulatien- --- - - -- -- - --- --Yes ----- -- - -- - --- --- - - --- - ------- - - --- 30 ROPE-press rating appropriate; test to_(put psig in comments)_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes - - - _ - - _ MASP calculated at 2370 psi. 3500_psi_ BOP test_planned, _ _ _ _ - - _ _ - - _ _ - _ - _ - - - - - - - _ - - - _ - - 31 Choke-roanifolds~ompiieswlAPI_RP•53(May84)---- - ---- -------Yes -- ------ -- - - -------- - ------- -- -- -- 32 Work will occur without operationsbutdown - - ~ - - - - - - - - -Yes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 33 IS presenceaf N2S gasprobable_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - - _ _ _ _ _ _ - Yes - - _ - - - _ H2$ isteperted_at Rpad.-Mud should preclude H2S on rig.- Rig has Sensers and_alarms,_ - - - - . - _ - _ _ - - - 34 Mechanical-conditionotvvells~ithinAQRyerified(FCrseNicewe9only)--__ --_------NA----. ._-----------------_-._-----------.-_------ Geology 35 Pe[mitcan be issuedw/o hydrogensulfidemeesures _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ No- - _ . - - - -Max level H2S well M-04=1$Oppm_(6126147);_well R-35=~40PRm (416!08)._ - - - _ _ _ - - - _ - - _ _ _ _ _ _ _ _ _ - . - 36 Data.presenied on potential evetpressurezones- - - - - - - - - - NA - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Appr Date 37 Seismlcanalysisofshaliowgaszones------------------------- ---------NA-___ -_----_-_.-------------------- -------------------------------------- ACS 101612008 38 Seabed conditionsurvey_(ifoff-shore)----------------------- -------- NA---- -------------------------------------: 39 Contactnamelphoneforweekiy-progressrepgrts_(e~loratoryonly]_--__-_ ______--Yes---- ---Mehrdad_Nadem-564-594]----------------------------------------------_---- Geologic Commissioner: Engineering blic Data: Commissioner: Date sinner Date to ~ 08