The URL can be used to link to this page

Home My WebLink About208-037Image Pro~ct Well History File Cov~Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. ~~ - 03 ~ Well History File Identifier Organizing (done) RE CAN Color Items: ^ Greyscale Items: ^ Poor Quality Originals: ^ Other: NOTES: „~.~, iuuiuiuiouiii DI TAL DATA Di kettes, No.' ther, No/Type:G~ 1,~ ^ Rescan Needed II I II ~) II II ~ I II I III OVERSIZED (Scannable) ^ Maps: ^ Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) ^ Logs of various kinds: ^ Other:: BY: Maria ) Date: ~ d-.~~Q ~s~ ~ ~ Project Proofing BY: Maria Date: ~s~ Scannin Pre aration _~ x 30 = l!/ d + 1 "7 =TOTAL PAGES_~~ g P (Count does not include cover sheet) BY: Maria Date: ~s~ ~ ~ III IIIIIIIIIII II II Production Scanning Sta e 1 Page Count from Scanned File: ~ (Count does include cov sheet) g Page Count Matches Number in Scanning Preparation: YES NO BY: Maria Date: 3 ~,,, / Q /s/ ~"~ Q Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: ~s~ Scannin is complete at this point unless rescanning is required. II I II') II I II II I I III 9 ReScanned II I I ~~ I I I I III I I I II BY: Maria Date: ~s~ Comments about this file: Quality Checked III (I'III III II'I I I 10/6/2005 Well History File Cover Page.doc • bp BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 May 11,2012 Mr. Jim Regg "4 �1� St.tkiitiED Alaska Oil and Gas Conservation Commission © ' © 3`l 333 West 7 Avenue -7 Anchorage, Alaska 99501 05 A Subject: Corrosion Inhibitor Treatments of GPB DS -05 Dear Mr. Regg, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB DS- 05 that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Gerald Murphy, at 659 -5102. Sincerely, Mehreen Vazir BPXA, Well Integrity Coordinator • • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) DS -05 Date: 01/10/2012 Corrosion Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft _ gal 05 -01C 1990280 50029201360000 Sealed conductor NA NA N/A N/A NA 05 -02A 2012410 50029201440100 Sealed conductor NA NA N/A N/A NA 05 -03C 2000940 50029201470300 Sealed conductor NA NA N/A N/A NA 05 -04A 1960890 50029201520100 Sealed conductor NA NA N/A N/A NA 05 -05B 1961800 50029201700200 Sealed conductor NA NA N/A N/A NA 05 -06A 1950840 50029201730100 0 NA 0 N/A N/A NA 05 -07 1770130 50029202430000 Sealed conductor NA NA N/A N/A NA 05 -08A 2100550 50029202480100 Sealed conductor NA NA N/A N/A NA 05 -09A 1990140 50029202540100 Sealed conductor NA NA N/A N/A NA 05 -10C 2070980 50029202630300 Sealed conductor NA NA N/A N/A NA 05 -11A 1960970 50029202520100 Sealed conductor NA NA N/A N/A NA 05 -128 2011800 50029202440200 Sealed conductor NA _ NA N/A N/A NA 05 -13B 2071460 50029202500200 Sealed conductor NA NA N/A N/A NA 05 -14A 1930820 50029202530100 Sealed conductor NA NA N/A N/A NA 05 -15B 1960230 50029202550200 Sealed conductor NA NA N/A N/A NA 05 -16B 1991000 50029202620200 Sealed conductor NA NA N/A N/A NA 05 -17B 1981040 50029202710200 Sealed conductor NA NA N/A N/A NA 05-18A 1981740 50029219600100 Split conductor NA NA N/A N/A N/A 05 -19 1890780 50029219620000 1.4 NA 1.4 N/A 8.5 4/11/2011 05 -20B 2042340 50029221370200 1.2 NA 1.2 _ N/A 5.1 4/18/2011 05 -21A 1981180 50029219690100 Dust Cover NA NA N/A N/A N/A 05 -22B 2071260 50029219760200 3.1 NA 3.1 N/A 18.7 4/17/2011 05 -23B 2080610 50029219630200 1.2 NA 1.2 N/A 5.1 4/11/2011 05 -24A 2042180 50029222040100 1.5 NA 1.5 N/A 10.2 4/11/2011 05 -25C 2091240 50029219880300 6.0 NA _ 6.0 N/A 44.2 4/18/2011 05 -26A 2012210 50029219840100 0.5 NA 0.5 N/A 3.4 4/12/2011 05 -27B 2081910 50029219790200 Sealed conductor NA NA N/A N/A N/A 05 -288 2060890 50029222080200 0.6 NA 0.6 N/A 1.7 4/10/2011 05 -30 1911150 50029222130000 1.2 NA 1.2 N/A 10.2 4/11/2011 05-31B 2100850 50029221590200 1.3 NA _ 1.3 N/A 6.8 4/12/2011 05 -32A 2020010 50029221900100 20.0 6.0 0.5 7/13/2011 3.4 7/23/2011 05 -33B 2100810 50029221680200 4.8 NA 4.8 N/A 37.4 4/27/2011 ----zip 05 -34A 2080370 50029222170100 3.9 NA 3.9 N/A 18.7 1/4/2012 05 -35A 2081340 50029221720100 2.7 NA 2.7 N/A 18.7 4/18/2011 05 -36A 2050700 50029221820100 2.3 NA _ 2.3 N/A 13.6 4/12/2011 05 -38 1961850 50029227220000 1.8 NA 1.8 N/A 15.3 4/10/2011 05 -39 1961730 50029227150000 1.3 NA 1.3 N/A 10.2 4/10/2011 05-40 1961590 50029227070000 1.6 N/A 1.6 N/A 16.2 1/10/2012 05 -41A 2031700 50029226960100 5.0 NA 5.0 N/A 58.7 1/8/2012 DATA SUBMITTAL COMPLIANCE REPORT 2/22/2010 Permit to Drill 2080370 Well Name/No. PRUDHOE BAY UNIT 05-34A Operator BP EXPLORATION (ALASKIy INC API No. 50-029-22217-01-00 MD 11115 TVD 9013 Completion Date 5/1/2008 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional Survey Yes DATA INFORMATgN Types Electric or Other Logs Run: USIT, DIR, GR, RES, PWD, Neu-Den, MWD Well Log Information: Log/ Electr Data Digital Dataset Typ Med/Frmt Number Name D D Asc Directional Survey D C Asc Directional Survey p Directional Survey D C Lis 16519 Induction/Resistivity rtgg Induction/Resistivity Log Induction/Resistivity Well Cores/Samples Information: Name Interval Start Stop ADDITIONAL INFORMATION Well Cored? Y I~1 Chips Received? Y"tN--' Analysis ~f"Y-1~ Received? (data taken from Logs Portion of Master Well Data Maint Log Scale Log Run Media No Interval Start Stop OH / CH Received Comments 0 11115 Open 5/7/2008 3189 3696 Open 5/10/2008 3189 3696 Open 5/10/2008 3086 11105 Open 7/1/2008 LIS Veri, GR, ROP, PRX, RPS, RPM, RPD, DRHO, NPHI, TRPM 25 Blu 3200 11115 Open 7/1/2008 MD Vision Service 25 Blu 3200 11115 Open 7/1/2008 TVD Vision Service Sample Set Sent Received Number Comments Daily History Received? Formation Tops Q N Comments: DATA SUBMITTAL COMPLIANCE REPORT 2/22/2010 Permit to Drill 2080370 Well Name/No. PRUDHOE BAY UNIT 05-34A Operator BP EXPLORATION (ALASKIy INC MD 11115 TVD 9013 Completion Date 5/1/2008 Completion Status 1-01L Current Status 1-OIL Compliance Reviewed By: Date: API No. 50-029-22217-01-00 UIC N LJ 06/25/08 ~~~l~mW~~~~~ NO. 4750 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 Wnll _Inh if 1 nn nccr_rinfinn nA}o RI [`nlnr rn P1-12 11978462 STATIC PRESS & TEMP "" ~ (,~ ~e'' ~" ~ ~'1 06/01/08 1 1 X-12 11978466 PRODUCTION PROFILE p` • = •-•° ~"~' A J "~' 06/04/08 1 G-05 12017499 PRODUCTION PROFILE f < ~` .,~ f~. °'~l 06/12/08 1 1 E-14A 12034899 SCMT j ~ ~ • .~ ~`~? ~ - ""~ 06/10/08 1 1 MPH-17 12066526 MEM INJ PROFILE J °'~) m. ' t'~ (~ s E~~ - ~' 05/26/08 1 1 L-220 11975763 CH EDIT PDC GR (USIT) REVISED CD'S ONLYr ~ ~* -: , ~~~ 04/22/08 1 L-220 40016915 OH MWD/LWD EDIT -S-_ +-t~.x_ ~""' ' 04/18/08 3 "'1"=~ ~ _. , . ~.,J _,.. L-221 40016787 OH MWD/LWD EDIT ; -, - ,_c - ~,~~'-:.. 04/03/08 3 1 01-01C 40015644 OH MWD/LWD EDIT '' ~-~.- °-3 "~~ ~'~~, '" r. °=?- 08/15/07 2 1 G-19B 40015844 OH MWD/LWD EDIT~t~" •- ~ ~~ ~ " " 10/20/07 2 1 X-17 12057619 RST '- r.a_ .!~ df, r';')~ ~ 05/24/08 1 1 L3-11 11966254 RST ~ ^'~r" -r ;`y = ~ Ji- " ~^°_ 05/01/08 1 1 Y-36 12014013 RST +" ~~ ~''? -- `%~ d ~ ~ -_ ~ ' 05/11/08 1 1 P2-37A 11216182 MCNL ~ ~ - - ~> - 03/17/08 1 1 05-34A 40016888 OH MWD/LWD EDIT ~^ - ~ ~'- (-~ 04/27/08 2 1 YLtASt HI:KNVWLtUIat Fltl;tlYi tfY 51taNIN(a ANU till UriNlNla UNt I.:UF'Y tA(:M 1 U: BP Exploration (Alaska) Inc. - Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 ~; ~l Date Delivered: Alaska Data & Consulting Services 2525 Gambell Street, Suite 40A Anchorage, AK 99503-2838;"l ATTN: Beth ' ~ /~ ~ ~ r, , , ;/ Received by: ;~ ,_ ~' ~ ~5 STATE OF ALASKA ~ ALASKA IL AND GAS CONSERVATION COM SION ~CEIVEI~ MAY 2 ~ 2008 WELL COMPLETION OR RECOMPLETION REPORT AND LOG ,~iasi~a ®if & Gas Cons. Commission 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended zoAACZS.,os zoAACZS.,,o ^ GINJ ^ WINJ ^ WDSPL ^ WAG ^ Other No. of Completions One 1b. Well Class: ®Development ^ Exploratory ^ Service ^ Stratigraphic 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or A .,p 5/1/2008 12. Permit to Drill Number 208-037 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 4/18/2008 13. API Number 50-029-22217-01-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 4/27/2008 14. Well Name and Number: PBU 05-34A 2441 FNL, 148 FWL, SEC. 32, T11 N, R15E, UM Top of Productive Horizon: 1664' FNL, 1395' FEL, SEC. 31, T11 N, R15E, UM 8. KB (ft above MSL): 62.40 Ground (ft MSL): 34.3' 15. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay Total Depth: 3328' FNL, 1767' FEL, SEC. 31, T11N, R15E, UM 9. Plug Back Depth (MD+TVD) 11027' 9009' Pool 4b. Location of Well (State Base Plane Coordinates, NAD 27): Surface: x- 697218 y- 5949005 Zone- ASP4 10. Total Depth (MD+TVD) 11115' 9013' 16. Property Designation: ADL 028326 TPI: x- 695652 y- 5949742 Zone- ASP4 Total Depth: x- 695329 y- 5948069 Zone- ASP4 11. SSSV Depth (MD+TVD) N/A 17. Land Use Permit: 18. Directional Survey ®Yes ^ No Submi electronic and rinted information er 20 AAC 25.050 19. Water depth, if offshore N/A ft MSL 20. Thickness of Permafrost (TVD): 1900' (Approx.) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): USIT, DIR, GR, RES, PWD, Neu-Den, MWD 22. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH MD SETTING DEPTH TVD HDLE AMOUNT WT. PER FT. GRADE TOP BOTTOM ToP .BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# H-40 Surface 110' Surface 110' 30" 11 and Coldset 10-3/4" 45# J-55 Surace 224' Surface 3223' 13-1/2" 2486 cu ft CS III 405 cu ft Class'G' 7" 26# L-80 29' 8562' 29' 8340' 8-1/2" 561 cu ft LiteCrete 180 cu ft'G' 4-1/2" 12.6# L-80 8395' 11115' 8179' 9013' -1/8" 87 cu ft Class' ' 23. Open to production or inject ion? ®Yes ^ No 24. TUBING RECORD If Yes, list each i (MD+TVD of Top & Bottom; Pe nterval open rforation Size and Number): SIZE DEPTH SET MD PACKER SET MD 2-7/8" Gun Diameter 6 SPF 4-1/2", 12.6#, 13Cr80 8406' 8287' , MD TVD MD TVD 9400' - 9550' 8939' - 8947 9660' - 9840' 8954' - 8957' '25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 9960' - 10040' 8963' - 8965' DEPTH INTERVAL MD AMOUNT S~ KIND OF MATERIAL USED 10060' -10950' 8965' - 9008' 10980' 11020' 9008' 9009' Freeze Protected with 75 Bbls of Diesel - - 26. PRODUCTION TEST Date First Production: Not On Production Method of Operation (Flowing, Gas Lift, etc.): N/A Date Of Test: HOUrS Tested: PRODUCTION FOR TEST PERIOD OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Flow Tubing PreSS. CaSing PreSS: CALCULATED 24-HOUR RATE• OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITV-API (CORK): 27. CORE DATA Conventional Core(s) Acquired? ^Yes ®No Sidewal l Cores Ac 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. A014lPLETlOPE None _. j, . Form 10-407 Revised 02/200 CONTINUED ON REVERSE SIDE /°.~ 28. GEOLOGIC MARKERS (LIST ALL FORMATIONS AN RS ENCOUNTERED): 29. FORMATION TESTS NAME TVD Well Teste ^ 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 detailed test information per 20 AAC 25.071. Top of Horizon 8253' 8043' Bottom of Horizon / LCU 8451' 8233' None Top of Sag River 8561' 8339' TSHA 8603' 8379' TSHB 8623' 8398' TSHC 8638' 8413' Top of Sadlerochit 8666' 8440' TCGL 8827' 8594' BCGL 8900' 8661' 23SB 8995' 8743' 22TS 9029' 8771' 21 TS 9097' 8822' Top of Zone 1 B 9163' 8867' PGOC 9170' 8872' T14N 9210' 8894' TOP OF ZONE 1A 9276' 8921' 13P 9292' 8926' Base of Sadlerochit 9551' 8947' Formation at Total Depth (Name): Top of Zone 1 A 11115' 9013' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys and Leak-Off Test Summary. 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. ry' Si d ~' ~ I '~~ gne :, Sondra tewman Title Drilling Technologist Date V } PBU 05-34A 208-037 Prepared ey Name/Number. Sondra Stewman, 564-4750 Well Number Permit No. / A fOV81 NO. Drilling Engineer: Jim Nigh, 564-5220 INSTRUCTIONS GeNew-~: 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 TVD 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. IreM 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 TREE = 4-1 /$" CNV WELLHEAD= FMC ACTUATOR= KB. ELEV = BAKERC 02.4' BF. ELEV = 34.4' KOP = Max Angk: = _ _ 3224' 91"~ 9660' Datum MD = Datum ND = X3156' 8800` SS DRLG DRAFT Minimum ID (05-34A)= 3.725" @ 8393" 4-1 /2" HES XN NIPPLE Baker 10-3/4" Whipstock- 3,21T 10-3/4° HES EZSV Bridge Pug - 3.,249' 7-5/8" CASING CUT - 3,285' 10-3/4" CSG, 45.5#, J-55, ID = 9.953" - 3,506' Top of Cement - 4,215' 7-5/8" HES EZSV Bridge Plug - 4,465' TUBING CUT - 4,506' Calculated Cement Top - -8,093' WOT Cement Retainer - -8,300' 05-34A SAFETY NOTES: W ELL ANGLE> 70° ~ 9270' 187' - 4-1/2" X Landing Nipple (3.813" ID) GAS LIFE MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 2 ..-_._., 3171 ;~~ ~_.~-,.~. 3169 . __. 1 .__. KGB2 - DMY i .;i; k__~ BK t-; w,....~..a..Y. 0 ; ~_, 04129!08 ;14/29108 8,406' - 41/2" TBG, 12.6p 13CR VAMTOP MILLOUT WINDOW (05-34A) 3224' - 3245?' Lead - 100 bbls 12.0 ppg LiteCrete Tail - 32 bbls 15.8 ppg Class G 8,256' - 4-112" X Nipple (3.813" ID) 8,26T - 7" X 4-112" BKR Packer 8,321' - 4-112" X Nipple (3.813" 1D) 8,393" -4-1/2" XN nipple (3.725" ID} 8,406' -4-112" WLEG 8,395` -Top of 4.5° liner 8,405' - 5"xT BKR HRD ZXP Packer 8,422' -Baker Flex-lock Liner Hanger Tubing Punch 8/9!07 - 8,600`-8,610' 3-1/2" TBG, 9.3#, L-80, .0087 bpf, ID = 2.992" - 8,427' Top of 5-1/2" Liner - 8,880' 7-5/8" CSG, 29.7#, L-80, ID = 6.875" - 9,179' PERFORATION SUMMARY REF LOG: USIT ON 04;13r'0$? ANGLEAT TOP PERF: 89° @ 9400' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 9400 - 9550 O 04/29/08 2-7/8" 6 9660 - 9840 O 04!29108 2-7/8" 6 9960 - 10040 O 04/29!08 2-7/8" 6 10060 - 10950 O 04!29(08 2-718" 6 10980 - 11020 O 04!29!08 ~ ~ 8,562 7" 26# L-80 BTC-M (TCII ~f FROM 4,654' TO SURFACE) ~~ 1 ' M#~ 5:...,ps , ~~~ ~-1~1~11~5 ~~ PBTD~- 11,027 4-1/2" 12.6# L-80 TD - 11,115' IBT-M SOLID Liner Fully Cemented with 15.8 ppg Class G DATE REV BY COMMENTS DATE REV BY COMMENTS 10/25/91 D9 ORIGINAL COMPLETION 03!03/92 D16 LAST WORKOVER 05/01/08 N7ES SIDETRACK OS-34A 05/03/08 PJC DRLG CORRECTIONS PRUDHOE BAY UNIT WELL: OS-34A FERMff No: 2080370 API No: 50-029-22217-01 SEC 32, T11 N, R15E, 2441' FNL & 149' FWL BP Exploration (Alaska) BP EXPLORATION Operations Summary Report Page 6 of 16 Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task ', Code I NPT , Phase 4/17/2008 02:15 - 00:00 ~ 21.75 STWHIP P WEXIT ~~CC[ ~~~°sdS ' ~ ~~1 L ~ c~ }-~v 1-24 ~~ ('CCP ~-~ 4/18/2008 100:00 - 03:00 I 3.00 I STW H I P I P 03:00 - 04:00 I 1.001 STWHIPI P 04:00 - 05:00 1.00 STWHIP P 05:00 - 06:00 1.00 STWHIP P 06:00 - 07:00 1.00 STWHIP P 07:00 - 08:30 1.50 STWHIP P 08:30 - 11:15 2.75 STWHIP P 11:15 - 12:30 1.25 STWHIP P 12:30 - 13:30 I 1.001 STWHIPI P 13:30 - 15:00 1.50 STWHIP P 15:00 - 00:00 9.00 DRILL P 4/19/2008 ~ 00:00 - 06:00 ~ 6.00 ~ DRILL ~ P 06:00 - 00:00 I 18.001 DRILL I P Description of Operations mills into tray. 6-7K tq. initially. 518 gpm, 705 psi, 80 rpm, 5-8K WOB. Pumped a 50 bbl nutplug sweep around at 3245' in attempt to increase BOP. No change. No definitive Ph change at window exit. Saw a few Ibs of 1/4" pieces of cement across shakers. Averaged 3'/hr ROP after window mill exited tray into formation. PU 95K SO 98K, 480 gpm, 830 psi, 3K tq. on, 120 rpm, 17K WOB at 23:59. Mill to 3263' at 23:59. 245# metal recovered. TOW = 3224' BOW = 3244'. WEXIT Mill from 3263' to 3269' and exit upper string mill (w/9.794" OD) f/casing. Circulate a 50 bbl super sweep around. No noticeable increase in cuttings across shakers. PU 95K SO 98K, 482 gpm, 845 psi, 2.5K tq. on, 128 rpm, 20K WOB at 02:00. Total of 245 # metal recovered. Work mills through window twice w/pumps and rotation. No drag. Pull through w/no pumps, no rotation. No drag. WEXIT POHf/3269' to 3240' above window. RU and perform 439 psi FIT to 12.4 ppg w/9.8 ppg mud at 3244' TVD. WEXIT POH (/3240' to BHA # 5 at 829'. MW = 9.8 ppg. WEXIT Stand back 5 stands 4" HWDP, LD nine 6-3/8" drill collars, LD Whipstock BHA. Upper string mill in gage. WEXIT Pull wear bushing. Jet stack. Install wear bushing. WEXIT PU drilling BHA #6 w/8.5" Hycalog DTX619M-D6 PDC bit w/6 x 13 jets. S/N 119154. XP 1.50 deg motor assy, ARC, MWD, UBHO, NM Stab, 2 NM Spiral DC, NM Stab, NM Spiral DC, FIoaUSaver Sub, Hyd Jars, XO, 20 jnts 4" HWDP. Shallow hole test MWD. (Ghost reamers 881' and 2289'). WEXIT PU 4" HT-40 DP and RIH to window at 3224'. WEXIT Slip/Cut 76' of drilling line. Inspect drawworks. Service top drive, blocks and crown. WEXIT Per geo MADPass in 10-3/4" casing f/3212' to 3117'. 350'/hr, 400 gpm, 920 psi. Establish clean hole ECD baseline. PU 85K, SO 85K. WEXIT RU gyrodata tools. Run Gyrodata close aooroacn surveys. INTi RIH to 3269' and drill to 3786' Survey each stand (3216', 3260', 3311', 3408', 3506', 3601') w/gyrodata until free of magnetic interference and MWD surveys correspond to Gyrodata surveys. Final gyrodata survey 3696'. Gyrodata and MWD congruent. Release Gyrodata at midnight. PJSM w/Sperry/Gyrodata and RD tools and sheaves off critical path. 500 gpm, 1530 psi on, 1415 psi off, 60 rpm, tq on 2.5K, tq off 1.5K, PU 97K, SO 95K, ROT 95K. MW = 9.8 ppg in and out. ECD calc/actual =10.31/10.36 ppg. ADT = 3.23 hrs f/24 hrs. ART = 1.40 hrs. AST = 1.83 hrs. Progress f/24 hrs. = 523', 6' w/shipstock mill & 517' w/PDC. INT1 Drill directionally w/1.50 deg motor assy f/3786' to 4675' 500 gpm, 1890 psi on, 1775 psi off, 100 rpm, tq on 3.OK, tq off 2.K, PU 110K, SO 105K, ROT 107K. MW 9.8 ppg in and out. ECD calc/actual =10.22/10.91 ppg. INTi Drill directionally w/1.50 deg motor assy f/4675 to 7322' 550 gpm, 2975 psi on, 2690 psi off, 80 rpm, tq on 6.OK, tq off 3.5K, Printed: 5/15/2008 9:21:14 AM BP EXPLORATION Page 7 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABORS 7ES Rig Number: Date From - To Hours Task Code NPT Phase ~ Description of Operations 4/19/2008 06:00 - 00:00 18.00 DRILL P INT1 PU 155K, SO 137K, ROT 140K. MW 9.8 ppg in and out. ECD talc/actual =10.21/10.90 ppg. Pumped two 25 bbl/20 ppb Mix II Medium sweeps at 6200' and 6900' as ECD approached .8 ppg limit. Good cuttings increase noted across shakers at return of swee s. ADT f/24 hrs = 15.63, AST = 2.5 hrs, ART = 13.13 hrs, Progress f/24 hrs = 3536' 4/20/2008 00:00 - 06:00 6.00 DRILL P INTi Drill directionally w/1.50 deg motor assy f/7322' to 7840', 545 gpm, 3260 psi on, 2975 psi off, 100 rpm, tq on 8K, tq off 4K, PU 168K, SO 148K, ROT 150K. MW 9.8 ppg in and out. ECD talc/actual =10.31/11.01 ppg. Sent 25 bbl/20 ppb Mix II Medium sweep around at 7799'. Small increase in cuttings when back across shakers. 06:00 - 19:00 13.00 DRILL P INT1 Drill directionally w/1.50 deg motor assy f/7840' to 8560' 545 gpm, 3260 psi on, 2975 psi off, 100 rpm, tq on 7-8K, tq off 4K, PU 180K, SO 152K, ROT 160K. Increase mud wt. f/9.8 ooa to 10.1 ppg w/LSND spike fluid while drilling f/8000' to 8200'. prior to enetratin HRZ to at 8253'. MW 10.1 ppg in and out. ECD talc/actual =10.55/10.73 ppg. 19:00 - 21:00 2.00 DRILL P INT1 Per geos begin scratch and sniff drilling for top of Sag River at 8560'. CBU f/samples per geo at 540 gpm, 2970 psi, reciprocate pipe. Drill (/8560' to 8565', SD drilling and CBU for samples at 540 gpm, 2970 psi, reciprocate pipe. Per ge _os TD; Intermediate 1 section at 8565'. 21:00 - 00:00 3.00 DRILL P INT1 Monitor well. Fluid level static. Begin short trip. POH f/8565' to 4838'. 25K pullover at 8200, 8058, 8010, 7985, 7952, 7885, 7853, 6621, 6551, 6500, 6433, 6420, 6084, 6005. Wipe all tight areas down and back up through w/no trouble. 4/21/2008 00:00 - 01:00 1.00 DRILL P INT1 POH f/4838' to window at 3224'. 01:00 - 02:00 1.00 DRILL P INT1 Perform top drive and rig service. Lube crown. CBU 496 gpm, 1560 psi, reciprocate pipe during rig service break. 02:00 - 04:30 2.50 DRILL P INTi RIH f/3224'. Tight hole at 7750'. Work tight spot. Tight hole (/8150' to 8250'. Work pipe, no rotation, dry. No problems f/top of HRZ at 8253' to TD at 8565'. 04:30 - 06:00 1.50 DRILL P INT1 Circulate 30 bbl/20ppb Mix II Medium sweep around. 1-3/4" splintered shale across shakers in large quantitiy. 06:00 - 09:30 3.50 DRILL P INT1 POH to 8177' above HRZ. Circulate and increase mud wt f/10.1 ppg to 10.6 ppg. 435 gpm, 2400 psi 50 rpm, 4K tq, reciprocate. 09:30 - 11:00 1.50 DRILL P INTi RIH to 8565'. Find 5' of fill on bottom. CBU 425 gpm, 2390 psi, 70 rpm, 4.5K tq, reciprocate until clean across shakers. 11:00 - 14:30 3.50 DRILL P INT1 POH f/TD at 8565' to BHA at 811'. No hole problems. 14:30 - 15:00 0.50 DRILL P INT1 LD 20 jts of 4" HWDP. 15:00 - 17:00 2.00 DRILL P INTi LD drilling BHA # 6. Clear floor. Monitor well. 17:00 - 19:00 2.00 CASE P LNR1 PJSM. Install test plug. CO top rams f/3.5" x 6" to 7". RU test equipment and test to 250/3500 psi low high pressure. Record on chart. Test good. 19:00 - 19:30 0.50 CASE P LNR1 RIH w/fluted casing hanger on landing jt. for test run. Mark landing joint. LD same. 19:30 - 21:00 1.50 CASE P LNR1 PJSM w/crew, casing hand, WSL, tourpusher. RU casing running equipment. CO bails. RU Franks fill up tool. 21:00 - 00:00 3.00 CASE P LNR1 MU shoe track w/Bakerlock. RIH and check floats both ways. Function as required both ways. MU tq on BTC to be 8000 ft Printed: 5/15/2008 9:21:14 AM BP EXPLORATION Operations Summary Report Legal Well Name: 05-34 Page 8 of 16 ~ Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT Phase ~', Qescription of Operations 4/21/2008 21:00 - 00:00 3.00 CASE P LNR1 lbs. (TCII 10100 ft Ibs). RIH w/7" 26# L-80 BTClTCII mixed casing string at 1 jt. per minute to 2004' filling each jt w/Franks tool. PU 73K, SO 73K. lost 30 bbls fluid to well bore (2.5 b h. 4/22/2008 00:00 - 01:30 1.50 CASE P LNR1 RIH with 7", 26#, L-80, BTC-M casing at 1 jt. per minute to window at 3224' (79 jts). 01:30 - 02:00 0.50 CASE P LNR1 Circulate 1.5 x casing volume staging pump rates up to 5 bpm, 315 psi with no losses. 02:00 - 02:30 0.50 CASE P LNR1 RIH with 7" casing to 3943' MD. 02:30 - 03:00 0.50 CASE P LNR1 RU to run 7", 26#, L-80, TC-II casing. 03:00 - 08:30 5.50 CASE P LNR1 RIH with 7", 26#, L-80, TC-II casing to 8527' MD. Torque turn each joint to optimal torque (10,100 ft-Ibs). 08:30 - 11:30 3.00 CASE P LNR1 Tagged fill at 8552' MD. Staged pumps up from 1 bpm, 240 psi, to 3 bpm 530 psi, to 5 bpm, 640 psi. 11:30 - 12:30 1.00 CEMT P LNR1 MU cement head and circulating lines. Stage pumps up to 5 bpm, 630 psi. Hold a PJSM with SLB cement crew while pumping 690 bbls of 10.6 ppg mud. 12:30 - 14:30 2.00 CEMT P LNRi Pressure test the cement lines to 4000 psi. Pump 30 bbls of 11.2 ppg MUDPUSH II. Drop plug. Pump 100 bbls of 12.0 ppg LiteCRETE followed by 32 bbls of 15.8 ppg class G cement. 1 ppb Cemnet in mudpush, lead, and tail cement. Drop plug and pump 10 bbls water on top of plug with cementers. 14:30 - 16:00 1.50 CEMT P LNR1 Change over to rig pumps and displace cement with 315 bbls of 10.6 ppg mud. Displace cement at 5 bpm until cement around shoe, slowed down to 3 BPM for remainder of displacement. Did not see increase in um ressure near end of dis lacement with diminishing returns from flow line. Bump plug and hold 500 psi over for 2 minutes. Bleed off pressure and check floats: floats held. Lost total of 36 bbls during displacement. 16:00 - 20:00 4.00 CEMT P LNR1 Rig down and blow down lines. Rig down cement head. Lay down landing joint. Rig down casing equipment. Change out bails. Install packoff and run in lockdown screws. Packoff test failed. Pull packoff and jet the stack (Debri suspected on top of mandrel). Re-install packoff and set down 35K. Packoff went -3" lower than first try. Test to 5200 psi for 30 min. Good test. 20:00 - 21:00 1.00 CEMT P LNR1 RU circulating lines to O.A. and test lines to 3000 psi. Pump 5 bbls of 10.1 ppg drilling fluid down 10-3/4"x7" annulus. Formation began to leak off at 480 psi surface pressure. Printed: 5/75/2008 9:27:14 AM BP EXPLORATION Page 9 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT I Phase ~ Description of Operations i --- 4/22/2008 20:00 - 21:00 1.00 CEMT P LNRi Continue to pump 1 bbl of 10.1 ppg drilling fluid down O.A. every half hour through end of tour. 21:00 - 22:00 1.00 BOPSU P LNR1 PJSM with hands. Change out to rams from 7" to 3.5" x 6" variables. 22:00 - 00:00 2.00 BOPSU P LNR1 Pressure test BOPE. 4/23/2008 100:00 - 02:00 2.001 BOPSUF{ P 02:00 - 03:00 1.001 CASE ~ P 03:00 - 05:00 2.00 DRILL P 05:00 - 08:00 3.001 DRILL ~ P 08:00 - 09:00 I 1.001 DRILL I P 09:00 - 10:00 1.001 DRILL ~ P 10:00 - 12:00 I 2.001 DRILL I P 12:00 - 13:00 1.001 DRILL ~ P 13:00 - 13:30 ~ 0.50 ~ DRILL ~ P Test from 250 psi low to 3500 psi high with 4" and 4.5" test joints. Perform Koomey test. BOP test withness waived by AOGCC rep Bob Noble. Test witnessed by Nabors Tool Pusher Biff Perry and BP WSL Kris Honas. LNR1 Continue to pressure test BOPE to 250 psi low, 3500 psi high with 4" and 4.5" test joints. Test witness waived by AOGCC rep Bob Noble. Test witnessed by Nabors Tool Pusher Biff Perry and BP WSL Kris Honas. LNR1 RU to pressure test the 7", 26#, L-80 casing (cement reached 1000 psi compresive strength prior to test). Pressure test casing to 3500 psi for 30 minutes and chart. Good test. Hold PJSM for making up the drilling BHA while performing pressure test. Rig down and blow down test lines. PROD1 MU 6-1/8" drilling BHA to include: 6-1/8" insert bit, 1.37 degree bend short pack motor, stablizer, Impulse MWD with DIR/GR/RES, neutron/density tools, 3 NM flex drill collars, CCV, 15' DC, Jars, and 1 jt. heavy weight. Continue to pump one bbl of 10.1 ppg drilling fluid down the O.A. every hour. PROD1 RIH with 6-1/8" drilling BHA to 1229'. Shallow test the MWD tools. Continue to RIH to 8395' MD. SIMOPS: Pumped 171 bbls of 10.1 drillin fluid down O.A. in preparation for freeze rotect. PROD1 Performed a well kill drill. Closed bag and allowed each floor hand to maintain -200 Ibs of pressure on the choke while adjusting pump pressure. PROD1 Tagged cement stringers at 8460' MD. Ta ed float collar on de th at 8478' MD. Drilled cement in the shoe track to 8554' MD. 230 gpm, 1855 psi, 30 RPM, 5K TO. PROD1 Pumped 150 bbls of water followed by a 50 bbl spacer pill. Displaced the well to 8.5 ppg Flo-Pro SF drilling fluid. 220 gpm, 1280 psi. PROD1 Obtain slow pump rates at 8562' MD. Drill up shoe and 20' of new formation to 8585' MD. 220 gpm, 1260 psi, 2.5K TO, 40 RPM, 10K WOB, PU 160K, SO 150K, ROT WT 150K. PROD1 Circulate bottoms up. 193 bbls, 240 gpm, 1400 psi, 40 RPM, 2.5K TO. No increase in cuttings returned at bottoms up. rnrnea: on oieuua a:~ is i w Nm i ~- BP EXPLORATION Page 10 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date. From - To Hours I' Task Code', NPT Phase Description of Operations 4/23/2008 13:30 - 14:00 0.50 DRILL P PROD1 Rig up test equipment and performed an FIT to 10.0 ooa EMW. 14:00 - 00:00 10.001 DRILL P PROD1 4/24/2008 100:00 - 02:00 2.00 DRILL P PROD1 02:00 - 06:00 I 4.001 DRILL P PROD1 06:00 - 08:00 2.001 DRILL P PROD1 08:00 - 08:30 0.50 DRILL P PROD1 08:30 - 10:30 2.00 DRILL N RREP PROD1 10:30 - 12:30 2.001 DRILL P PROD1 12:30 - 16:00 3.501 DRILL P PROD1 16:00 - 00:00 8.001 DRILL P PROD1 14/25/2008 100:00 - 01:00 1.00 DRILL P PROD1 658 psi surface pressure with 8.5 ppg drilling fluid. Rig down and blow down lines. Drill directionally from 8585' MD to 9030' MD. 245 gpm, 1540 psi on, 1410 psi off, 40 RPM, 4K TO on, 3K TO off, PU 170K, SO, 150K, ROT 155K. Total slide time = 3.65 hours; Total rotating time = 4.02 hours; Actual drilling time = 7.67 hours. SIMOPS: Rig up Little Red Hot Oil and pump 97 bbls of diesel down the O.A. to freeze protect the annulus to 2000'. Continue to drill directionally to 9163' sliding 100%. PU 173K, SO 150K, 250 gpm, 1620 psi on, 1490 psi off. Total slide time = 1.75 hours, Total drilling time = 1.75 hours. Unable to obtain required doglegs. Fell ~13 feet behind plan, need 17 degree doglegs to recover. Decision made by WSL, geologist, directional driller and town engineer to trip for new bit and change motor bend. Circulate bottoms up and pump a dry job. POOH with 6.125" drilling BHA for bit/motor change. Mud Weight = 8.5 ppg. Secure the source from the neutron/density tool. Lay down the bit and mud motor. Bit graded 1-3-WT-G-E-1/16-RG-BHA. Down load MWD and ADN data. Service the drawworks. Found leaks in drip pan below the drawworks. Repaired leaks. Reference Traction Report 2008-IR-2620385 for details concerning leak. Pick up 2.12 degree mud motor and 6-1/8" insert bit. MU MWD including neutron/density tool and load source. RIH with drilling BHA to 273' MD. RIH with 4" drillpipe to 1229' MD Shallow test the MWD at 240 gpm, 860 psi. Continue to RIH on 4" drillpipe stands to 9145' MD. Fill pipe every 30 stands. PU 170K, SO 140K. Wash down to 9164' MD (-3' of fill). Drill directionally sliding 100% to 9540' MD obtaining -19 degree doglegs. Land well and continue to slide at slight downward inclination looking for BSAD (Kavik). 250 GPM, 1575 psi on, 1360 psi off, PU 173K, SO 148K. Actual slide time = 5.7 hours, Actual drilling time = 5.7 hours. Slow pump rates taken at 9164' MD. Continue to drill directionally from 9540' MD to 9578' MD. Printed: S/15/LUUtf y:11:14 AM BP EXPLORATION Page 11 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date From - To ~, Hours Task ~~ Code NPT Phase Description of Operations 4/25/2008 00:00 - 01:00 1.00 DRILL P PROD1 After locating the BSAD, oriented bit to high side and drill 20' to prepare for PDC run. PU 173K, SO 150K, 250 GPM, 1450 psi off, 1640 psi on. Slide time = 1.08 hrs, total drill time = 1.08 hrs, total bit hours 6.78 hrs. Pumped a 30 bbl high vis sweep while drilling last 15' in preparation to POOH. 250 GPM, 1570 psi. 01:00 - 02:30 1.50 DRILL P PROD1 Pump out of hole into 7" shoe at 8481' MD racking back 4" drill pipe. 240 GPM, 1330 psi. 02:30 - 03:30 1.00 DRILL P PROD1 Drop ball and pump down at 84 GPM to open the CCV Circulate bottoms up at 10 bpm, 1240 psi. Pump a dry job at 5 bpm. 03:30 - 04:00 0.50 DRILL P PROD1 Maintenance rig. Patch holes below drawworks with marine grade epoxy (unable to weld holes). 04:00 - 06:30 2.50 DRILL P PROD1 POOH with 6.125" drilling BHA racking back stands of 4" drill pipe to 366' MD. Drop ball and shift CCV to closed position. 06:30 - 08:30 2.00 DRILL P PROD1 POOH with 6.125" drilling BHA. Recover 2 balls from ball catcher. Secure source from neutron/density tool and lay down tool. Lay down MWD and 2.12 degree mud motor. Clean and clear the rig floor and upload the MWD in the pipe shed. 08:30 - 09:30 1.00 DRILL P PROD1 PJSM with hands. PU and RIH with 6.125" drilling BHA including: 6.125" PDC bit, 1.5 degree AIM motor, stabilizer, MWD with DIR/GR/RES, CCV, and Jars. 09:30 - 12:30 3.00 DRILL P PROD1 RIH with 6.125" drilling BHA on 4" drill pipe stands. Shallow test the MWD at 1211' MD, 240 GPM, 750 psi. Continue to RIH to 8473' MD filling pipe every 30 stands. 12:30 - 13:30 1.00 DRILL P PROD1 Slip and cut 140' of drilling line. Service the crown and top drive. Adjust the brake. 13:30 - 14:30 1.00 DRILL P PROD1 Continue to RIH to 9578' MD. PU 160K, SO 140K No fill on bottom. 14:30 - 00:00 9.50 DRILL P PROD1 Drill from 9578' MD to 9811' MD. 250 GPM, 1550 psi on, 1463 psi off, RPM 40, 6K TQ on, 4K TO off, PU 175K, SO 148K, ROT Wt 152K. Slide time = 4.68 hrs, Rotate time = 1.03 hrs, Drilling time = 5.71 hours Mud Weight = 8.5 ppg Slow pump rates taken at 9716' MD. 4/26/2008 00:00 - 12:00 12.00 DRILL P PROD1 Drill from 9811' MD to 10,098' MD. 250 GPM, 1601 psi on, 1440 psi off, 40 RPM, 6K TQ on, 4K TO off, PU 175K, SO 150K, ROT Wt 155K. Slide Time = 9.13 hrs, Rotate Time = 0.01 hrs, Drilling Time = 9.14 hrs. F'f111t8tl: 5/15/LUUtl `J:[7:14 HM BP EXPLORATION Page 12 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Event Name: REENTER+COMPLETE Contractor Name: NABORS ALASKA DRILLING Rig Name: NABORS 7ES Date From - To Hours Task Code NPT --- 4/26/2008 00:00 - 12:00 12.00 DRILL P 12:00 - 00:00 I 12.001 DRILL I P 4/27/2008 100:00 - 06:00 6.00 DRILL P 06:00 - 07:00 1.00 DRILL P 07:00 - 11:30 I 4.501 DRILL I P 11:30 - 12:00 I 0.501 DRILL I P 12:00 - 12:30 0.50 DRILL P 12:30 - 13:30 1.00 DRILL P 13:30 - 15:30 I 2.001 DRILL I P Spud Date: 4/18/2008 Start: 4/9/2008 End: 5/1 /2008 Rig Release: 5/1/2008 Rig Number: i Phase ' Description of Operations I _ PROD1 Difficulty getting weight on bit. Believe either high doglegs or Kavik shales are not allowing weight to bit. When weight is transfered to bit, it is sudden and causes PDC bit to grab and lose orientation. Results are excessive time orienting and very slow ROP. Condition improved as top of BHA left Shale zone. Mud weight = 8.5 ppg heavy with 4% tubes. PROD1 Drill from 10,098' MD to 10,735' MD. 250 GPM, 1730 psi on, 1530 psi off, 60 RPM, 6.5K TO on, 4.5K TO off, PU 175K, SO 145K, ROT 154K. Slide Time = 2.90 hrs, Rotate Time = 5.47 hrs, Drilling Time = 8.37 hrs. Mud weight = 8.6 ppg with 4% tubes. PROD1 Continue to drill production hole from 10,735' MD to 11,115' M D. WOB 15K, 250 GPM, 1740 psi on, 1601 psi off, 60 RPM, 6.5K TO on. 4K TO off, PU 180K, SO 145K, ROT Wt 155K. Drilling Time = 4.35 hrs. TD called by Geologist at 11,115' MD. Differential sticking at 10,910' MD while attempting to orient bit for slide. Used torque and slump method to free pipe. Increased water added to mud from 15 bbls/hr to 30 bbls per hour to aid in lowering density. Sticking occured with -50K surface weight on bit, but bit was not on bottom. PROD1 Circulate bottoms up while rotating and reciprocating pipe. 250 GPM, 1565 psi, 80 RPM. PROD1 Trip out of hole from 11,115' MD to 10,750' MD. 35K overpulls. Backreamed out off hole from 10,750' MD to 9600' MD. 210 GPM, 1135 psi, 35 RPM. Continue to pump out of hole from 9600' to 7" shoe at 8562' MD without backreaming. 210 GPM. PROD1 Circulate bottoms up at the shoe. 250 GPM, 1308 psi, pumped 190 bbls. PROD1 Serviced the top drive, blocks and crown. PROD1 Tripped back in hole to 11,054' MD. Tight spots from 10,963' MD to 11,033' MD. 20K under slack off weight. Wiped tight spots on trip in. PROD1 Washed down from 11054' MD to 11,115' MD. 150 GPM, 1050 psi. Pumped a 30 bbls high vis sweep at 250 GPM, 1630 psi rotating 60 RPM and reciprocating pipe. 4K TO, pumped a total of 342 bbls with no increase in cuttings. Spotted a 113 bbl liner running pill in the open hole (new 8.5 Nrintea: oiioieuuu a:ei:iaHnn • BP EXPLORATION Page 13 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task ', Code I NPT I Phase Description of Operations 4/27/2008 13:30 - 15:30 2.00 DRILL P PROD1 ppg Flo Pro with 1.5% 776 lube). PU = 180K, SO = 150K. 15:30 - 17:00 1.50 DRILL P PROD1 Monitor the wellbore. Static loss rate = 1 bbl/hr POOH from 11,115' MD to 8562' MD with no overpull. 17:00 - 17:30 0.50 DRILL P PROD1 Monitor the well at the 7" shoe. Static loss rate = 1 bbl/hr. Dropped a 2-1/8" rabbit. Blow down the top drive. 17:30 - 20:30 3.00 DRILL P PROD1 POOH from 7" shoe at 8562' MD to top of the BHA racking back 4" drill pipe. 20:30 - 21:30 1.00 DRILL P PROD1 PJSM with hands. LD 6.125" drilling BHA including: 6.125" PDC bit, 1.5" AIM mud motor, Stabilizer, MWD with DIR/GR/RES, CCV, Drill Collars, Jars, and jt of heavy weight. Bit graded 1-1-WT-A-X-I-CT-TD. 21:30 - 22:30 1.00 CASE P RUNPRD PJSM with Nabors Casing hand and rig crew. RU to run 4.5", 12.6#, L-80, IBT-M liner. 22:30 - 00:00 1.50 CASE P RUNPRD RIH with 4.5", 12.6#, L-80, IBT-M liner to 300' MD. Bakerlok the shoe joints. Run one centralizer per joint, full floating. Checked float equipment: floats holding. 4/28/2008 00:00 - 02:30 2.50 CASE P RUNPRD RIH with 64 joints of 4.5", 12.6#, L-80, IBT-M liner to 2748' MD. Average make up torque 3400 ft-Ibs. One centralizer per joint on joints 1-59 and joints 62-64. MU Baker Flex Lock Liner Han er and HRD ZXP Pac er with HR running tool. RD liner running equipment. Pick up one stand of 4" drill pipe. 02:30 - 03:00 0.50 CASE P RUNPRD Circulate 1.5 times the liner volume (64 bbls) at 3 bpm, 240 psi. 03:00 - 06:00 3.00 CASE P RUNPRD Continue to RIH with 4.5" liner on 4" drill pipe stands to the 7" shoe at 8562' MD. 06:00 - 07:00 1.00 CASE P RUNPRD Circulate 1.5 liner volumes prior to entering OH at 8562' MD. Stage up pumps to 5BPM 650 psi. 07:00 - 09:00 2.00 CASE P RUNPRD RIH with 4.5" liner to 11098' MD. Make up liner cement head. RIH and tag up at 11,115' MD. PU 165K, SO 135K 09:00 - 10:30 1.50 CEMT P RUNPRD Stage pumps up to 5 bpm, 975 psi. PJSM with SLB cementers, rig hands and WSL. Pressure test cement lines to 4000 psi. 10:30 - 11:30 1.00 CEMT P RUNPRD Pump 30 bbls of MudPush at 5 bpm. Pump 69 bbls of 15.8 ppg class G cement at 5 bpm. Wash up cementers via tee and hose. Drop liner wiper dart & displace with rig pumps. Displaced cement 50 bbl pert followed by 72..25 bbls of 8.5 ppg mud. Reci rotated pipe until just after cement turned corner. PU wei ht increased 25K over and decision was made to stop reci rotation. Bumped plug and pressured up to 3600 psi. 12:00 - 12:30 0.50 CEMT P RUNPRD S/O 40K to 90K on weight indicator to ensure liner hanger is Printetl: 5/152Wt3 y:2laoann BP EXPLORATION Page 14 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT Phase I Description of Operations 4/28/2008 12:00 - 12:30 0.50 CEMT P RUNPRD set. Bleed off pressure and checked floats -floats holdiong. R/D tee, valves, and hose and line up to pump through top drive. P/U to 170K -not released from liner. S/O 50K to 80K on weight indicator and pressure up to release HRD running tool with 4100 psi. Bleed off pressure and pick up. Released from HRD running tool. P/U 5' to expose dogs on packer setting tool. S/O 25K and see good indication of packer setting. Repeat sequence with rotation and 40K S/O to ensure packer set. Pressure up to 1000 psi and pick up to unseat packoff and increase pump rate to 10 BPM once packoff inside of tie back sleeve. P/U additional 17' and put no go mark on pipe. 12:30 - 13:30 1.00 CEMT P RUNPRD Continue to circulate out excess cement at 240 gpm, 210 psi. -7 bbls of cement returned to surface. Dumped 26 bbls of contaiminated cement. Lay down the cement head and blow down the lines. 13:30 - 15:00 1.50 CASE P RUNPRD Pump 100 bbls of fresh water spacer and displace well to 8.5 ppg seawater. 500 GPM, 2075 psi. 15:00 - 17:00 2.00 CASE P RUNPRD Monitor the well: static POOH with HR running tool racking back 4" drill pipe to 2835' MD. 17:00 - 19:00 2.00 CASE P RUNPRD Lay down 90 joints of 4" drill pipe. Lay down HR running tool. Confirmed dog sub sheared. 19:00 - 20:00 1.00 CASE P RUNPRD Pull the wear ring and install a test plug. Rig up testing equipment. Pressure test the lower pipe rams with a 2-7/8" test joint to 250 psi low, 3500 psi high. Rig down and blow down the testing equipment. Install the wear ring. 20:00 - 00:00 4.00 CEMT N CEMT RUNPRD Wait on cement to reach 1000 psi compresive strength for casing test. Clean under the rotary table and draw works to inspect drip pan for pitting. Pitted areas will be repaired during summer maintenance. Load perforation guns in the pipe shed and rig up to run 2-7/8" perforation guns. 4/29/2008 00:00 - 00:30 0.50 CASE P RUNPRD Pressure test production liner to 3500 psi for 30 minutes and chart. PJSM with SLB pert hands, rig hands and WSL for up coming perforation run. 00:30 - 02:30 2.00 PERFO P OTHCMP RIH with - ration uns and blanks. Pick up perforation guns as doubles. Use dog collar while making up each connection. Rig down gun handling equipment. 02:30 - 03:00 0.50 PERFO P OTHCMP Rig up and run 12 joints of 2-7/8" PAC drill pipe. 03:00 - 05:00 2.00 PERFO N HMAN OTHCMP 3.5" x 2.5" Nut from dog collar was too loose when pulled, hole cover was removed and nut fell from dog collar and down the hole. POOH with PAC drill pipe. Stop with 200' of PAC pipe left in hole. 05:00 - 08:00 3.00 PERFO N HMAN OTHCMP Shut down while Schlumberger Perforation Crew gets rest. rrintea: 5noi~uuu a:Li:iaNm i ~ BP EXPLORATION Page 15 of 16 Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/29/2008 05:00 - 08:00 3.00 PERFO N HMAN OTHCMP Rig crew cleaned and serviced rig while waiting. 08:00 - 08:30 0.50 PERFO N HMAN OTHCMP POOH with 200' of 2-7/8" PAC pipe to firing head. Check head to see if nut was pulled to surface. Nut was not found. 08:30 - 10:30 2.00 PERFO N HMAN OTHCMP Run back in hole with 2-7/8" PAC drill pipe to 2781' MD. 10:30 - 14:30 I 4.001 PERFOBI P 14:30 - 15:00 0.501 PERFOB~ P 15:00 - 16:00 1.00 ~ PERFOB~ P 16:00 - 17:00 1.001 PERFOB~ P 17:00 - 18:00 1.00 PERFOB~ P 18:00 - 22:00 ~ 4.00 PERFOB~ P 22:00 - 00:00 2.001 PERFOB, P Operations Summary Report OTHCMP ~ Cross over to 4" HT-40 drill pipe and continue in the hole. Pick up 7' and place guns on depth with bottom shot at 11.020' N1D. PU = 165K, SO = 145K. OTHCMP PJSM with SLB crew on firing guns. Practice the firing sequence. Fire guns. Perforation Intervals for 2-7/8", 6SFP, 2906 PowerJet pert guns: 150' from 9400' - 9550' 180' from 9660' - 9840' 80' from 9960' - 10040' 890' from 10060' - 10950' 40' from 10980' - 11020' (NOTE: PowerJet OMEGA charges used from 10321' - 1040 OTHCMP POOH above top perforation to 9375' MD. Monitor the well: 2 bph static loss rate. OTHCMP Circulate bottoms up. 250 GPM, 1225 psi, 213 bbls. Monitor the well: 2 bph static loss rate. Blow down the top drive. OTHCMP POOH with 4" drill pipe to 6507' MD. Rack 50 stands in the derrick in preparation for the rig move. OTHCMP Lay down remaining 4" drill pipe. PJSM with hands on laying down PAC pipe. Rig up PAC pipe handling equipment. Lay down 36 joints of 2-7/8" PAC drill pipe to 1630' MD. OTHCMP Break out and lay down the SLB firing head. Lay down 31 joints of 2-7/8" perforation guns. Total losses to wellbore: 30 bbls, 3.5 bph loss rate. 14/30/2008 100:00 - 03:00 3.00 PE P OTHCMP Continue to POOH with 2-7/8" perforation guns. Lay down 78 guns. 03:00 - 04:30 I 1.501 RU 04:30 - 16:00 I 11.501 RUN Rig down Schlumberger's equipment. Clear and clean the rig floor. RUNCMP Rig up to run 4.5", 12.6#, 13Cr-80, Vam Top completion. Pull the wear bushing. Change to long bails. Make a dummy run with the tubing hanger. Rig up the torque turn equipment and compensator. RUNCMP Run in hole with 4.5", 12.6#, 13Cr-80, Vam Top tubing. F'flnt8tl: 5/15/LUUt3 'J:L1:14 HM • BP EXPLORATION Page 16 of 16 Operations Summary Report Legal Well Name: 05-34 Common Well Name: 05-34 Spud Date: 4/18/2008 Event Name: REENTER+COMPLETE Start: 4/9/2008 End: 5/1/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/1/2008 Rig Name: NABOBS 7ES Rig Number: `` Date From - To Hours Task ,Code NPT Phase Description of Operations 4/30/2008 04:30 - 16:00 11.50 BUNCO RUNCMP Make up all connections to 4440 ft-Ibs (optimal torque). RIH to 8374' MD. 16:00 - 18:30 2.50 BUNCO RUNCMP Space out tubing 4' off bottom of tieback receptacle. WLEG at 8406' MD. PU=118K, S0=110K. Circulate 121 bbls of clean 8.5 ppg seawater. 3 bpm, 170 psi. 18:30 - 19:00 0.50 BUNCO RUNCMP Make up FMC 4.5"x11" TCII hanger and land tubing. Run in the lock down screws. Back out the landing joint and lay down. 19:00 - 20:00 1.00 BUNCO RUNCMP Rig up the circulating lines and reverse circulate 115 bbls of 8.5 ppg corrosion inhibited seawater down the back side. 3 bpm, 205 psi. 20:00 - 22:00 2.00 BUNCO RUNCMP Drop the ball and rod. Close the blinds and apply 2800 psi against the ball to set the Baker S-3 packer. Continue to increase pressure and test the tubing to 3500 psi ing pressure to 1500 psi. re to the I.A. (4.5"x7" annulus) to 3500 psi for 30 22:00 - 00:00 I 2.00 15/1/2008 00:00 - 01:00 1.00 BOPSUF~ P 01:00 - 03:00 2.00 WHSUR P 03:00 - 04:00 I 1.001 WHSUR I P 04:00 - 06:30 ~ 2.50 ~ WHSUR ~ P 06:30 - 07:00 0.50 WHSUR P 07:00 - 08:00 1.00 WHSUR P Bleed the I.A. pressure to zero psi followed by the tubing pressure to zero psi. Apply pressure to the I.A. until the DCK valve sheared at 2200 psi. Reverse 2 bbls through the DCK shear valve at 1600 psi. Pump 2 bbls down the tubing through the DCK shear valve at 700 psi. Confirmed good shear. RUNCMP PJSM with hands. Blow down the kill line, choke line, and hole fill. Install a TWC. Test TWC from below to 1000 psi and chart. RUNCMP Nipple down BOP stack. RUNCMP Nipple up adaptor flange and tree. Test the adaptor, flange and tree to 5000 psi. RUNCMP Rip uo Drill Site Maintenance Lubricator. Pull the TWC. RUNCMP PJSM. Rig up Little Red and reverse 75 bbls of diesel down the I.A. 2 BPM, 1500 psi. Allow diesel to U-tube between I.A. and tubing to freeze protect well to 2200'. RUNCMP Rig up Drill Site Maintenance lubricator and set BPV. Test to 1000 psi. RUNCMP Rig down lubricator. Rig down circulating lines in cellar. Remove secondary annulus valves from wellhead. Clean and clear the cellar. Release the rig @ 8:00 A.M. on 05/01/2008. rrintea: onoieuuu a:e is iv rm BP EXPLORATION Page 1 of 1 Leak-Off Test Summary Legal Name: 05-34 Common Name: 05-34 Test Date Test Type 4/18/2008 FIT 4/23/2008 FIT Test Depth (TMD) Test Depth (TVD) 3,244.0 (ft) 3,244.0 (ft) 8,585.0 (ft) 8,352.0 (ft) AMW Surface Pressure __ 9.80 (ppg) 439 (psi) 8.50 (ppg) 658 (psi) Leak Off Pressure (BHP) 2,090 (psi) 4,346 (psi) '~•'*' 1NN~J1 10.02 (ppg) • Printed: 5/15/2008 9:21:28 AM by - w w~~ w w ~I/ e - - u~u~-s4~- curve Report Date: 27-Apr-08 Client: BP Exploration Alaska Field: Prudhoe Bay Unit - EOA Structure /Slot: DS-05 / 05-34 Well: 05-34 Borehole: 05-34A UWVAPI#: 500292221701 Survey Name /Date: 05-34A /April 27, 2008 Tort /AHD / DDI / ERD ratio: 246.757° / 3778.67 ft / 6.061 / 0.419 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feel Location LaVLong: N 70.26484805, W 148.40533237 Location Grid N/E Y/X: N 5949005.160 ftUS, E 697217.650 ftUS Grid Convergence Angle: +1.50104682° Grid Scale Factor: 0.99994418 r~epvri Survey / DLS Computation Method: Minimum Curvature / Lubinski Vertical Section Azimuth: 300.000° Vertical Section Origin: N 0.000 ft, E 0.000 ft TVD Reference Datum: Rotary Table TVD Reference Elevation: 62.40 ft relative to MSL Sea Bed /Ground Level Elevation: 34.30 ft relative to MSL Magnetic Declination: 23.408° Total Field Strength: 57679.510 nT Magnetic Dip: 80.930° Declination Date: April 14, 2008 Magnetic Declination Model: BGGM 2007 North Reference: True North Total Corr Mag North -> True North: +23.408° • Comments Measured Inclination Azimuth SutrSea TVD TVD 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 tt ftUS ttUS Projected-Up O.lw 0.UU U. UU -bL. 4U 0.UU U. UU U.UU U.VU V.UU U.UU V.UU by4yVUb.lb by/Ll /.b5 IV /U.Gb4234t5Vb VV 14t5. 4UbJ3Z3/ WRP 28.10 0.00 0. 00 -34. 30 28.10 0. 00 0.00 0.00 0.00 0.00 0.00 5949005. 16 697217.65 N 70.26484805 W 148. 40533237 BOSS GYRO 189.40 0.80 62. 10 126. 99 189.39 -0. 60 1.13 1.13 0.53 1.00 0.50 5949005. 71 697218.63 N 70.26484949 W 148. 40532432 289.40 1.00 63. 00 226. 98 289.38 -1. 44 2.70 2.70 1.25 2.39 0.20 5949006. 47 697220.01 N 70.26485146 W 148. 40531305 389.40 0.90 64. 30 326. 97 389.37 -2. 36 4.35 4.35 1.99 3.87 0.10 5949007. 25 697221.47 N 70.26485348 W 148. 40530104 489.40 1.30 74. 70 426 .95 489.35 -3. 60 6.27 6.25 2.63 5.68 0.45 5949007. 93 697223.26 N 70.26485523 W 148. 40528647 589.40 1.70 73. 30 526 .92 589.32 -5. 42 8.89 8.85 3.35 8.19 0.40 5949008. 73 697225.75 N 70.26485721 W 148. 40526614 689.40 1.70 76. 20 626 .87 689.27 -7. 51 11.85 11.80 4.13 11.05 0.09 5949009. 58 697228.59 N 70.26485934 W 148. 40524301 789.40 1.80 76. 40 726 .82 789.22 -9. 71 14.91 14.84 4.86 14.02 0.10 5949010. 38 697231.54 N 70.26486131 W 148. 40521903 889.40 1.80 80. 70 826 .78 889.18 -12. 07 18.05 17.95 5.48 17.10 0.14 5949011. 08 697234.60 N 70.26486302 W 148. 40519416 989.40 1.70 86 .20 926 .73 989.13 -14. 51 21.10 20.95 5.83 20.13 0.20 5949011. 52 697237.62 N 70.26486398 W 148. 4051 1089.40 1.80 88 .90 1026 .68 1089.08 -17. 09 24.15 23.93 5.96 23.18 0.13 5949011. 72 697240.66 N 70.26486433 W 148. 4051 1189.40 1.80 87 .60 1126 .63 1189.03 -19. 76 27.29 27.00 6.05 26.32 0.04 5949011. 90 697243.80 N 70.26486459 W 148. 405119 1289.40 2.10 68 .50 1226 .58 1288.98 -22. 23 30.66 30.36 6.79 29.59 0.71 5949012. 72 697247.05 N 70.26486661 W 148. 40509316 1389.40 2.10 81 .80 1326 .51 1388.91 -24. 81 34.31 34.00 7.72 33.11 0.49 5949013. 75 697250.54 N 70.26486915 W 148. 40506471 1489.40 2.20 82 .40 1426 .44 1488.84 -27. 77 38.06 37.73 8.24 36.82 0.10 5949014. 36 697254.24 N 70.26487056 W 148. 40503467 1589.40 2.10 77 .40 1526 .37 1588.77 -30. 64 41.81 41.48 .8.89 40.51 0.21 5949015. 11 697257.92 N 70.26487235 W 148. 40500484 1689.40 2.00 75 .30 1626 .30 1688.70 -33. 23 45.39 45.05 9.74 43.99 0.13 5949016. 04 697261.37 N 70.26487465 W 148. 40497674 1789.40 1.60 70 .90 1726 .26 1788.66 -35. 38 48.53 48.19 10.64 47.00 0.42 5949017. 02 697264.35 N 70.26487711 W 148. 40495243 1889.40 1.70 62 .90 1826 .21 1888.61 -37. 10 51.40 51.01 11.77 49.64 0.25 5949018. 22 697266.96 N 70.26488020 W 148. 40493109 1989.40 1.70 65 .80 1926 .17 1988.57 -38. 78 54.37 53.91 13.05 52.31 0.09 5949019. 58 697269.60 N 70.26488371 W 148. 40490948 2089.40 1.80 62 .10 2026 .12 2088.52 -40. 48 57.42 56.90 14.39 55.05 0.15 5949020. 99 697272.30 N 70.26488738 W 148. 40488732 2189.40 1.60 60 .90 2126 .08 2188.48 -42. 03 60.39 59.79 15.81 57.66 0.20 5949022 .47 697274.87 N 70.26489124 W 148. 40486623 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-34\05-34\05-34A\05-34A Generated 5/16/2008 9:01 AM Page 1 of 5 Comments Measured Inclination Azimuth Sub-Sea TVD TVD 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 100ft itUS ftUS CLCS~9.4V I.~J'U J~.~JV LGGO.VJ LL8V. 4J -4J.4/ OJ.44 OL./L I/. YL VV.GJ V.JY :JJYJVLY. IJ VJ/G//.YG IY /V. GVYVJJVJ YV IYV. YVYVYJGU 2389.40 1.50 65.60 2325.99 2388. 39 -44.96 66.40 65.59 18. 89 62.82 0.49 5949025. 69 697279.95 N 70. 26489965 W 148. 40482454 2489.40 1.50 67.70 2425.95 2488. 35 -46.52 69.02 68.20 19. 92 65.22 0.05 5949026. 78 697282.32 N 70. 26490248 W 148. 40480512 2589.40 0.80 36.10 2525.93 2588. 33 -47.39 70.98 70.06 20. 99 66.84 0.92 5949027. 89 697283.92 N 70. 26490538 W 148. 40479200 2689.40 0.90 358.90 2625.92 2688. 32 -47.06 72.41 70.85 22. 33 67.24 0.55 5949029. 25 697284.28 N 70. 26490907 W 148. 40478880 2789.40 0.90 10.80 2725.91 2788. 31 -46.40 73.98 71.48 23. 89 67.37 0.19 5949030. 81 697284.37 N 70. 26491332 W 148. 40478773 2889.40 0.90 11.50 2825.90 2888. 30 -45.89 75.55 72.30 25. 43 67.67 0.01 5949032. 35 697284.63 N 70. 26491753 W 148. 40478527 2989.40 0.90 11.90 2925.89 2988. 29 -45.40 77.12 73.15 26. 97 67.99 0.01 5949033. 90 697284.91 N 70. 26492173 W 148. 40478270 3089.40 1.10 343.00 3025.87 3088. 27 -44.45 78.83 73.68 28. 66 67.87 0.54 5949035. 58 697284.75 N 70. 26492634 W 148. 40478366 Tie-In Surrey 3189.40 1.20 317.70 3125.85 3188. 25 -42.75 80.80 73.45 30. 35 66.89 0.51 5949037. 25 697283.72 N 70. 26493096 W 148. 40479162 TOW 3224.00 1.20 334.15 3160.45 3222. 85 -42.11 81.52 73.33 30. 94 66.49 0.99 5949037. 83 697283.30 N 70. 26493258 W 148. 4047 BOW 3244.00 2.90 350.76 3180.43 3242. 83 -41.61 82.23 73.47 31. 63 66.31 8.92 5949038. 52 697283.11 N 70. 26493446 W 148. 9 4047 GYD GC SS 3260.00 2.99 350.76 3196.41 3258 .81 -41.09 83.05 73.71 32. 44 66.18 0.56 5949039. 32 697282.96 N 70. 26493668 W 148. 40479733 3311.00 5.32 345.25 3247.27 3309. 67 -38.59 86.75 74.64 36. 04 65.37 4.63 5949042. 90 697282.05 N 70. 26494651 W 148. 40480393 3408.00 9.19 343.79 3343.48 3405 .88 -29.83 98.99 78.35 47. 83 62.06 3.99 5949054. 60 697278.43 N 70. 26497873 W 148. 40483067 3506.00 11.02 328.00 3439.97 3502 .37 -15.90 116.08 83.79 63. 30 54.91 3.37 5949069. 87 697270.88 N 70. 26502097 W 148. 40488848 3601.00 12.74 312.92 3532.96 3595 .36 2.33 135.53 88.91 78. 13 42.42 3.72 5949084. 37 697258.01 N 70. 26506151 W 148. 40498942 MWD+IFR+MS 3722.38 14.78 297.12 3650.89 3713 .29 30.85 164.23 96.17 94. 31 18.83 3.51 5949099. 93 697234.00 N 70. 26510571 W 148. 40518014 3817.23 15.13 300.59 3742.53 3804 .93 55.31 188.70 106.16 106. 13 -2.60 1.01 5949111. 18 697212.28 N 70. 26513798 W 148. 40535335 3913.26 15.31 299.87 3835.19 3897 .59 80.52 213.91 121.29 118. 82 -24.38 0.27 5949123. 29 697190.17 N 70. 26517266 W 148. 40552944 4009.31 16.36 299.73 3927.59 3989 .99 106.73 240.12 140.01 131. 84 -47.12 1.09 5949135. 72 697167.09 N 70. 26520824 W 148. 40571331 4104.19 17.34 301.59 4018.40 4080 .80 134.23 267.62 162.14 145. 88 -70.77 1.18 5949149. 12 697143.09 N 70. 26524658 W 148. 40590449 4200.92 17.21 303.58 4110.77 4173 .17 162.92 296.34 187.22 161 .34 -94.97 0.63 5949163. 95 697118.49 N 70 .26528883 W 148. 40610014 4296.67 17.35 301.83 4202.20 4264 .60 191.32 324.78 212.99 176 .71 -118.90 0.56 5949178. 68 697094.17 N 70 .26533080 W 148. 40629361 4390.83 17.74 302.12 4291.98 4354 .38 219.69 353.16 239.18 191 .74 -142.98 0.42 5949193. 08 697069.71 N 70 .26537187 W 148. 40648826 4486.85 16.70 301.72 4383.69 4446 .09 248.10 381.59 265.85 206 .77 -167.10 1.09 5949207. 47 697045.20 N 70 .26541293 W 148. 40668331 4583.72 16.75 300.94 4476.46 4538 .86 275.97 409.47 292.25 221 .27 -190.92 0.24 5949221. 34 697021.01 N 70 .26545253 W 148. 40687581 4677.52 16.36 300.53 4566.37 4628 .77 302.70 436.19 317.71 234 .93 -213.89 0.43 5949234 .39 696997.69 N 70 .26548984 W 148. 40706153 4774.43 15.89 300.00 4659.47 4721 .87 329.61 463.11 343.48 248 .49 -237.13 0.51 5949247 .34 696974.10 N 70 .26552690 W 148. 4072 4867.96 17.30 300.05 4749.10 4811 .50 356.32 489.82 369.20 261 .86 -260.26 1.51 5949260 .10 696950.63 N 70 .26556342 W 148. 4074 4963.22 17.36 299.13 4840.04 4902 .44 384.70 518.19 396.60 275 .87 -284.94 0.29 5949273 .46 696925.60 N 70 .26560169 W 148. 40763592 5059.56 17.00 298.24 4932.08 4994 .48 413.14 546.65 424.10 289 .53 -309.90 0.46 5949286 .46 696900.29 N 70 .26563901 W 148. 40783773 5154.50 16.52 297.15 5022.99 5085 .39 440.50 574.03 450.56 302 .26 -334.14 0.60 5949298 .54 696875.73 N 70 .26567378 W 148. 40803369 5250.80 18.09 300.65 5114.93 5177 .33 469.13 602.66 478.49 316 .13 -359.18 1.96 5949311 .75 696850.33 N 70 .26571167 W 148 .40823619 5346.03 17.72 300.52 5205.55 5267 .95 498.40 631.94 507.28 331 .02 -384.39 0.39 5949325 .98 696824.75 N 70 .26575236 W 148 .40843996 5441.33 17.71 299.43 5296.33 5358 .73 527.40 660.94 535.79 345 .51 -409.51 0.35 5949339 .81 696799.26 N 70 .26579194 W 148 .40864304 5537.15 18.52 301.54 5387.40 5449 .80 557.18 690.73 565.18 360 .63 -435.17 1.09 5949354 .25 696773.21 N 70 .26583324 W 148 .40885053 5631.96 18.71 301.07 5477.25 5539 .65 587.44 720.99 595.14 376 .36 -461.03 0.26 5949369 .29 696746.95 N 70 .26587620 W 148 .40905959 5727.58 18.47 300.85 5567.88 5630 .28 617.92 751.47 625.32 392 .04 -487.17 0.26 5949384 .28 696720.41 N 70 .26591904 W 148 .40927093 5824.28 18.67 299.28 5659.55 5721 .95 648.71 782.27 655.77 407 .47 -513.82 0.56 5949399 .00 696693.37 N 70 .26596117 W 148 .40948640 5919.30 18.82 298.53 5749.53 5811 .93 679.24 812.80 685.91 422 .22 -540.55 0.30 5949413 .06 696666.26 N 70 .26600148 W 148 .40970252 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-34\05-34\05-34A\05-34A Generated 5/16/2008 9:01 AM Page 2 of 5 +< Comments Measured Inclination Azimuth Sub-Sea ND 7Vp Vertical Along Hole Closure NS fW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de OOft ftUS ftUS bU14.'LS lr$.LCS L`J`J. LI JtSJJ.J4 JyU I.`J4 /Uy.44 O~VJ.UI /1.7./'4 4J0. 01 -JO/. VV V.VI J~YJYLV.J`4 V.7VVJ.7.YJ Iv /V.GVVVY IJG vv IYV. YVJJIVJJ 6109.67 17.34 298. 77 5930.39 5992.79 738.62 872.19 744.61 450. 95 -592. 53 1.00 5949440. 41 696613.55 N 70.26607996 W 148. 41012277 6204.99 17.82 298. 06 6021.26 6083.66 767.40 900.98 773.07 464. 65 -617. 85 0.55 5949453. 44 696587.88 N 70.26611738 W 148. 41032750 6301.73 17.65 297. 46 6113.40 6175.80 796.85 930.45 802.18 478. 38 -643. 93 0.26 5949466. 48 696561.45 N 70.26615487 W 148. 41053833 6396.58 17.24 296. 05 6203.89 6266.29 825.23 958.88 830.20 491. 18 -669. 31 0.62 5949478. 61 696535.74 N 70.26618984 W 148. 41074359 6492.40 18.45 299. 35 6295.10 6357.50 854.56 988.24 859.24 504. 85 -695. 29 1.65 5949491. 59 696509.42 N 70.26622717 W 148. 41095360 6588.41 18.74 299. 00 6386.09 6448.49 885.17 1018.86 889.65 519. 77 -722. 02 0.32 5949505. 81 696482.30 N 70.26626794 W 148. 41116973 6684.60 19.42 301. 91 6477.00 6539.40 916.61 1050.29 920.96 535. 72 -749. 11 1.22 5949521. 04 696454.81 N 70.26631149 W 148. 41138875 6778.68 19.15 301. 29 6565.80 6628.20 947.67 1081.36 951.95 552. 00 -775. 57 0.36 5949536. 62 696427.93 N 70.26635596 W 148. 41160272 6874.66 18.44 300. 74 6656.66 6719.06 978.58 1112.29 982.79 567. 93 -802. 07 0.76 5949551. 86 696401.02 N 70.26639949 W 148. 41181698 6970.55 17.90 300. 28 6747.77 6810.17 1008.48 1142.19 1012.59 583. 12 -827. 83 0.58 5949566. 36 696374.87 N 70.26644096 W 148. 41202 7065.97 17.40 299. 54 6838.70 6901.10 1037.41 1171.12 1041.40 597. 54 -852. 91 0.57 5949580. 12 696349.43 N 70.26648037 W 148. 412228 7161.96 16.81 301. 67 6930.45 6992.85 1065.64 1199.35 1069.55 611. 91 -877. 21 0.90 5949593. 85 696324.76 N 70.26651960 W 148. 41242449 7257.67 15.12 299. 03 7022.46 7084.86 1091.96 1225.67 1095.79 625. 23 -899. 91 1.92 5949606. 57 696301.73 N 70.26655600 W 148. 41260799 7351.92 15.25 299. 31 7113.42 7175.82 1116.64 1250.36 1120.36 637. 27 -921. 46 0.16 5949618. 03 696279.86 N 70.26658886 W 148. 41278228 7447.96 15.42 299. 88 7206.04 7268.44 1142.04 1275.76 1145.66 649. 81 -943. 55 0.24 5949629. 99 696257.46 N 70.26662313 W 148. 41296085 7543.50 15.21 300. 09 7298.19 7360.59 1167.28 1300.99 1170.82 662. 42 -965. 40 0.23 5949642. 03 696235.28 N 70.26665757 W 148. 41313758 7639.44 15.63 302. 95 7390.68 7453.08 1192.77 1326.49 1196.28 675. 76 -987. 14 0.91 5949654. 79 696213.21 N 70.26669401 W 148. 41331332 7734.62 15.80 304. 09 7482.30 7544.70 1218.50 1352.27 1222.06 690. 00 -1008. 63 0.37 5949668. 46 696191.35 N 70.26673289 W 148. 41348708 7830.39 16.02 303. 63 7574.40 7636.80 1244.69 1378.53 1248.31 704. 62 -1030. 43 0.26 5949682. 51 696169.17 N 70.26677284 W 148. 41366336 7925.87 16.55 304. 88 7666.05 7728.45 1271.39 1405.30 1275.08 719. 70 -1052. 56 0.67 5949697. 00 696146.66 N 70.26681402 W 148. 41384226 8021.18 16.34 301. 65 7757.46 7819.86 1298.32 1432.27 1302.05 734. 50 -1075. 11 0.98 5949711. 20 696123.74 N 70.26685443 W 148. 41402459 8117.13 15.54 299. 75 7849.72 7912.12 1324.66 1458.62 1328.35 747. 96 -1097. 76 1.00 5949724. 06 696100.74 N 70.26689120 W 148. 41420772 8212.10 15.03 297. 58 7941.33 8003.73 1349.69 1483.66 1353.26 759. 97 -1119. 72 0.81 5949735. 50 696078.48 N 70.26692401 W 148. 41438529 8308.03 17.10 299. 66 8033.51 8095.91 1376.22 1510.20 1379.68 772. 71 -1143. 00 2.24 5949747. 62 696054.87 N 70.26695881 W 148. 41457355 8404.31 16.98 301. 51 8125.57 8187.97 1404.43 1538.41 1407.84 787. 06 -1167 .29 0.58 5949761. 33 696030.22 N 70.26699801 W 148. 41476992 8435.80 15.64 300 .92 8155.79 8218.19 1413.27 1547.25 1416.68 791. 65 -1174 .85 4.29 5949765. 72 696022.54 N 70.26701053 W 148. 41483107 MWD+IFR+MS 8499.88 15.99 301 .20 8217.44 8279.84 1430.73 1564.72 1434.12 800. 66 -1189 .81 0.56 5949774. 33 696007.35 N 70.26703514 W 148. 41495 Inc+Trend 8568.94 15.58 301 .80 8283.90 8346.30 1449.51 1583.50 1452.89 810. 47 -1205 .83 0.64 5949783. 72 695991.08 N 70.26706194 W 148. 4150 Inc+Trend 8600.58 15.56 302 .10 8314.38 8376.78 1458.00 1592.00 1461.38 814 .97 -1213 .03 0.26 5949788. 03 695983.76 N 70.26707422 W 148. 41513 MWD+IFR+MS 8632.51 15.31 302 .33 8345.16 8407.56 1466.49 1600.49 1469.87 819 .50 -1220 .22 0.81 5949792. 37 695976.45 N 70.26708659 W 148. 41519796 8664.02 15.02 303 .16 8375.57 8437.97 1474.72 1608.74 1478.11 823 .95 -1227 .16 1.15 5949796. 64 695969.40 N 70.26709877 W 148. 41525402 8695.60 14.64 303 .28 8406.10 8468.50 1482.80 1616.82 1486.19 828 .38 -1233 .92 1.21 5949800. 89 695962.53 N 70.26711086 W 148. 41530869 8728.29 15.86 298 .41 8437.64 8500.04 1491.39 1625.41 1494.77 832 .78 -1241 .30 5.41 5949805. 09 695955.03 N 70.26712286 W 148. 41536839 8759.51 17.65 292 .17 8467.53 8529.93 1500.34 1634.40 1503.65 836 .59 -1249 .44 8.12 5949808 .69 695946.80 N 70.26713328 W 148. 41543418 8791.44 19.52 286 .12 8497.80 8560.20 1510.32 1644.57 1513.48 839 .90 -1259 .05 8.41 5949811 .74 695937.11 N 70.26714231 W 148. 41551188 8824.14 21.17 280 .96 8528.46 8590.86 1521.20 1655.93 1524.14 842 .54 -1270 .09 7.45 5949814 .09 695926.00 N 70.26714952 W 148 .41560120 8856.14 22.99 276 .24 8558.11 8620.51 1532.39 1667.96 1535.04 844 .32 -1281 .98 7.94 5949815 .56 695914.07 N 70.26715437 W 148 .41569731 8888.23 24.75 272 .12 8587.46 8649.86 1544.06 1680.94 1546.37 845 .25 -1294 .92 7.55 5949816 .15 695901.10 N 70.26715691 W 148 .41580196 8919.90 26.90 269 .57 8615.97 8678.37 1556.10 1694.73 1558.04 845 .44 -1308 .72 7.64 5949815 .98 695887.31 N 70.26715742 W 148 .41591347 8951.21 29.48 265 .72 8643.56 8705.96 1568.58 1709.52 1570.13 844 .81 -1323 .48 10.08 5949814 .97 695872.57 N 70.26715570 W 148 .41603288 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-34\05-34\05-34A\05-34A Generated 5/16/2008 9:01 AM Page 3 of 5 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 ft ft ft de 100 ft ftUS ftUS 8983.99 32 .84 263.63 8671.61 9015.44 36 .06 260.10 8697.54 9047.38 39 .45 258.19 8722.79 9079.56 42 .24 255.63 8747.14 9111.12 45 .28 252.60 8769.93 9142.98 48.20 248. 32 8791. 77 9174.94 52.44 247. 64 8812. 17 9206.21 58.52 249. 25 8829. 88 9237.85 64.58 249. 83 8844. 95 9269.59 70.87 250. 33 8856. 97 9302.37 77.33 9333.57 82.00 9364.96 85.56 9396.06 89.30 9427.58 88.68 9459.40 9492.89 9524.56 9565.68 9596.80 9628.48 9660.40 9692.34 9724.58 9755.87 9788.49 9820.25 9851.83 9883.97 9916.22 9947.62 9980.20 10012.32 10043.21 10075.68 10107.95 10139.50 10170.94 10203.33 10235.33 87.31 89.22 82.75 82.30 86.54 87.69 90.77 90.57 89.26 88.17 249.56 246.15 240.54 235.31 230.65 225.64 218.70 217.97 214.83 214.77 8865.95 8871.55 8874.95 8876.35 8876.90 8878.02 8879.03 8881.25 8886.60 8889.62 8734.01 8759.94 8785.19 8809.54 8832.33 8854.17 8874.57 8892.28 8907.35 8919.37 8928.35 8933.95 8937.35 8938.75 8939.30 8940.42 8941.43 8943.65 8949.00 8952.02 1582. 40 1726.47 1583.54 843 .22 -1340. 37 10.77 5949812 .93 1596. 38 1744.26 1597.13 840 .68 -1357. 97 12.04 5949809 .94 1611. 16 1763.81 1611.56 836 .99 -1377. 17 11.23 5949805 .74 1626. 51 1784.85 1626.66 832 .21 -1397. 66 10.11 5949800 .43 1641. 69 1806.68 1641.70 826 .22 -1418. 64 11.70 5949793 .89 1656. 72 1829.87 1656.76 818 .45 -1440. 49 13.40 5949785 .55 1671. 85 1854.46 1672.13 809 .22 -1463. 28 13.37 5949775 .73 1687. 87 1880.21 1688.64 799 .78 -1487. 24 19.90 5949765 .66 1705 .58 1908.02 1707.11 790 .06 -1513. 29 19.22 5949755 .26 1724 .48 1937.38 1727.09 780 .06 -1540. 89 19.87 5949744 .55 1744.71 1968. 88 1748.77 769. 25 -1570. 49 1763 .53 1999. 57 1769.34 757. 68 -1598. 90 1780 .67 2030. 77 1788.70 743. 68 -1626. 77 1795 .21 2061. 83 1805.96 727. 19 -1653. 08 1807 .51 2093. 35 1821.56 708. 22 -1678. 24 1817.41 2125.15 1835.35 1824.46 2158.62 1847.16 1829.04 2190.20 1856.81 1833.58 2230.97 1868.68 1836.18 2261.93 1877.41 214.32 8891.22 8953.62 1838.68 2293.57 214.13 8891.65 8954.05 1841.03 2325.48 214.14 8891.27 8953.67 1843.34 2357.42 212.70 8891.32 8953.72 1845.26 2389.66 211.59 8892.02 8954.42 1846.43 2420.94 88.20 210. 75 8893.06 8955.46 1847.10 2453. 55 88.17 208. 95 8894.06 8956.46 1847. 01 2485. 29 87.72 206. 78 8895.19 8957.59 1845. 84 2516. 85 87.27 203. 36 8896.60 8959.00 1843. 08 2548. 96 87.00 200. 31 8898.21 8960.61 1838. 50 2581. 17 87.27 196. 83 8899.78 8962.18 1832. 29 2612 .53 88.44 193. 23 8901.00 8963.40 1823. 88 2645 .09 88.78 190. 13 8901.78 8964.18 1813. 79 2677 .20 88.54 187. 23 8902.50 8964.90 1802. 56 2708 .08 88.16 183. 54 8903.44 8965.84 1789. 05 2740 .53 88.68 180. 12 8904.33 8966.73 1773. 82 2772 .79 88.30 176. 97 8905.16 8967.56 1757 .37 2804 .33 88.17 174. 76 8906.13 8968.53 1739 .73 2835 .76 88.58 174. 56 8907.05 8969.45 1721 .00 2868 .13 87.75 173. 72 8908.07 8970.47 1702 .27 2900 .12 1886.68 1896.35 1906.46 1916.78 1926.59 1936.79 1946.49 1955.56 1963.77 1970.73 1976.24 1980.49 1983.33 1984.94 1985.29 1984.15 1981.75 1978.38 1974.75 1971.38 687.01 -1701.92 662.22 -1724.38 637.45 -1743.96 604.64 -1768.15 579.21 -1785.82 553.15 -1803.77 526.76 -1821.71 500.33 -1839.64 473.42 -1857.39 446.94 -1874.04 419.04 -1890.91 391.51 -1906.71 363.61 -1921.46 334.53 -1935.06 304.63 -1947.04 274.91 -1957.03 243.47 -1965.47 212.03 -1971.97 181.51 -1976.63 149.20 -1979.67 116.96 -1980.70 85.44 -1979.90 54.10 -1977.64 21.86 -1974.62 -9.96 -1971.36 19.84 5949732.97 18.43 5949720.66 21.08 5949705.94 20.66 5949688.76 14.91 5949669.14 16.31 5949647.32 21.48 5949621.94 20.56 5949596.67 7.65 5949563.24 13.63 5949537.36 3.90 5949510.84 9.67 5949484.00 0.63 5949457.10 6.04 5949429.74 4.97 5949402.83 2.58 5949374.50 5.67 5949346.57 7.01 5949318.29 10.72 5949288.87 9.48 5949258.67 11.10 5949228.70 11.61 5949197.05 9.71 5949165.45 9.42 5949134.82 11.42 5949102.44 695855.73 N 70.26715135 W 148.41616937 695838.21 N 70.26714441 W 148.41631166 695819.11 N 70.26713431 W 148.41646688 695798.76 N 70.26712124 W 148.41663254 695777.94 N 70.26710487 W 148.41680218 695756.30 N 70.26708362 W 148.41697880 695733.76 N 70.26705841 W 148.41716309 695710.06 N 70.26703258 W 148.41735675 695684.27 N 70.26700603 W 148.41756738 695656.94 N 70.26697869 W 148.41779052 695627.64 N 70.26694915 W 148.4180 695599.54 N 70.26691752 W 148.41825 695572.05 N 70.26687927 W 148.41848482 695546.18 N 70.26683420 W 148.41869752 695521.53 N 70.26678236 W 148.41890086 695498.42 N 70.26672440 W 148.41909226 695476.62 N 70.26665665 W 148.41927378 695457.69 N 70.26658897 W 148.41943208 695434.37 N 70.26649932 W 148.41962760 695417.37 N 70.26642984 W 148.41977043 695400.12 N 70.26635864 W 148.41991543 695382.87 N 70.26628654 W 148.42006050 695365.65 N 70.26621430 W 148.42020534 695348.60 N 70.26614078 W 148.42034884 695332.66 N 70.26606841 W 148.42048334 695316.52 695301.45 695287.44 695274.60 695263.41 695254.21 695246.59 695240.92 695237.06 695234.86 N 70.26599219 W 148.42061972 N 70.26591696 W 148.42074739 N 70.26584074 W 148.42086658 N 70.26576128 W 148.4209 N 70.26567960 W 148.4210 N 70.26559839 W 148.42115395 N 70.26551250 W 148.42122212 N 70.26542660 W 148.42127460 N 70.26534320 W 148.42131221 N 70.26525494 W 148.42133676 10.72 5949070.19 695234.68 N 70.26516687 W 148.42134502 10.05 5949038.70 695236.30 N 70.26508075 W 148.42133848 7.04 5949007.43 695239.39 N 70.26499513 W 148.42132010 1.41 5948975.29 695243.24 N 70.26490706 W 148.42129567 3.69 5948943.57 695247.34 N 70.26482015 W 148.42126920 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-34\05-34\05-34A\05-34A Generated 5/16/2008 9:01 AM Page 4 of 5 R Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de tt ft tt ft ft ft ft de 100 tt ftUS ftUS 101(i(i.8y 10298.83 10331.25 10362.32 10394.37 10426.07 10457,92 10490.48 10521.85 10554.11 10586.07 10617.52 10649.42 10682.64 10712.19 10745.00 10776.95 10807.85 10840.30 10872.62 ti /.:i4 87.44 87.38 86.96 86.38 86.38 86.76 86.28 86.28 86.31 85.62 86.00 86.31 86.48 86.76 87.00 87.31 87.68 88.03 88.37 1 /4.11 173.84 174.19 175.40 175.31 175.07 175.43 175.83 176.07 176.14 176.64 176.86 177.01 176.79 177.02 if`JU`J.4L tSy/ 1.25L 1 b25:3. / V L`JJ I .b5 I `Jbt5.4D -4 I .J I - I ~08.UL 8910.88 8973.28 1664.93 2963.55 1966.02 -73.04 -1964.67 8912.34 8974.74 1645.90 2995.94 1964.11 -105.25 -1961.29 8913.88 8976.28 1628.01 3026.97 1963.20 -136.15 -1958.48 8915.74 8978.14 1609.82 3058.97 1963.09 -168.04 -1955.88 8917.74 8980.14 1591.76 3090.61 1963.40 -199.57 -1953.23 8919.65 8982.05 1573.64 3122.40 1964.26 -231.25 -1950.60 8921.62 8984.02 1555.29 3154.90 1965.88 -263.66 -1948.12 8923.66 8986.06 1537.77 3186.20 1968.13 -294.88 -1945.91 8925.74 8988.14 1519.81 3218.40 1971.04 -327.00 -1943.72 8927.99 8990.39 1502.17 3250.28 1974.59 8930.29 8992.69 1484.97 3281.64 1978.78 8932.43 8994.83 1467.60 3313.47 1983.63 8934.52 8996.92 1449.50 3346.62 1989.19 8936.26 8998.66 1433.39 3376.12 1994.59 176.78 8938.05 9000.45 177.01 8939.63 9002.03 176.76 8940.98 9003.38 177.60 8942.20 9004.60 176.83 8943.21 9005.61 10904 .28 88.41 177 .22 8944.10 9006.50 10936 .55 88.95 176 .63 8944.84 9007.24 10968 .59 88.71 177 .13 8945.50 9007.90 11000 .10 88.54 176 .48 8946.25 9008.65 11032 .70 88.13 176 .27 8947.20 9009.60 1415.50 1398.07 1381.21 1363.63 1346.14 1328.91 1311.31 1293.80 1276.56 1258.51 3408.88 3440.79 3471.67 3504.09 3536.40 3568.04 3600.31 3632.34 3663.84 3696.43 2001.07 2007.88 2014.92 2022.96 2031.47 2040.17 2049.44 2059.09 2068.98 2079.43 -358.82 -1941.72 -390.14 -1939.94 -421.92 -1938.24 -455.02 -1936.44 -484.48 -1934.85 -517.19 -1933.08 -549.06 -1931.35 -579.88 -1929.67 -612.27 -1928.08 -644.53 -1926.51 -676.14 -1924.87 -708.35 -1923.14 -740.34 -1921.39 -771.79 -1919.64 -804.31 -1917.58 I./`J ~y48~IL. JG O~JLJ I.JU IV /U.L~4/J44~ VV 140. 4L IG4G IL 0.90 5948880. 69 695255 .68 N 70.26464781 W 148. 42121497 1.09 5948848. 58 695259 .90 N 70.26455982 W 148. 42118761 4.12 5948817. 76 695263 .53 N 70.26447539 W 148. 42116478 1.83 5948785. 95 695266 .95 N 70.26438827 W 148. 42114377 0.76 5948754. 51 695270 .43 N 70.26430215 W 148. 42112226 1.64 5948722. 91 695273 .89 N 70.26421559 W 148. 42110091 1.92 5948690. 58 695277 .21 N 70.26412706 W 148. 42108082 0.76 5948659. 42 695280 .24 N 70.26404176 W 148. 42106289 0.24 5948627. 38 695283 .27 N 70.26395401 W 148. 42104514 2.66 5948595. 62 695286 .11 N 70.26386709 W 148. 42102 1.40 5948564. 37 695288 .71 N 70.26378154 W 148. 42101 1.08 5948532. 64 695291 .24 N 70.26369472 W 148. 42100 0.84 5948499. 60 695293 .90 N 70.26360427 W 148. 42098602 1.23 5948470. 19 695296 .26 N 70.26352380 W 148. 42097309 1.03 5948437. 54 695298 .89 N 70.26343443 W 148. 42095870 1.21 5948405. 73 695301 .45 N 70.26334739 W 148. 42094466 1.44 5948374. 97 695303 .94 N 70.26326318 W 148. 42093103 2.80 5948342. 63 695306 .38 N 70.26317470 W 148. 42091807 2.60 5948310. 42 695308 .80 N 70.26308655 W 148. 42090531 1.24 5948278.87 2.48 5948246.72 1.73 5948214.79 2.13 5948183.40 1.41 5948150.94 695311.27 695313.84 695316.42 695319.00 695321.91 695324.40 695329.08 N 70.26300021 W 148.42089197 N 70.26291220 W 148.42087792 N 70.26282482 W 148.42086376 N 70.26273890 W 148.42084950 N 70.26265005 W 148.42083278 N 70.26257362 W 148.42081853 N 70.26242578 W 148.42079205 Last Survey 11060.75 87.89 176.55 8948.18 9010.58 1243.00 3724.46 2088.80 -832.29 -1915.82 1.31 5948123.02 TD (Projected) 11115.00 87.89 176.55 8950.17 9012.57 1213.12 3778.67 2107.98 -886.41 -1912.56 0.00 5948069.01 Survey Type: Definitive Survey NOTES: BOSS GYRO - (Sperry-Sun BOSS gyro multishot --Sperry Sun BOSS multishot surveys ) GYD GC SS - (Gyrodata -gyro single shots -- Gyrodata gyro orientation surveys. Not to be run above 70 degrees inclination.) INC+TREND - (Inclinometer + known azi trend --Inclination only surveys in near-vertical hole-where formation dip and experience enables direction of drift to be predicted. Replaces ex-BP "Inclinometer (azimuth in known quadrant)" model.) 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 enhance inclination accuracy. ) Legal Description: Northing (Y) IftUSI Easting (X) fftUSl Surface : 2839 FSL 5132 FEL S32 Ti 1 N R15E UM 5949005.16 697217.65 BHL : 1952 FSL 1767 FEL S31 T11 N R15E UM 5948069.01 695329.08 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-34\05-34\05-34A\05-34A Generated 5/16/2008 9:01 AM Page 5 of 5 • gyrodata Gyrodata Incorporated 1682 W. Sam Houston Pkwy. N. Houston, Texas 77043 713/461-3146 Fax: 713/461-0920 May 2, 2008 State of Alaska - AOGCC Attn: Christine Mahnken 333 W. 7th Ave, Suite 100 Anchorage, Alaska 99501 Re: DriN Site 5#05-34A 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 fonivard to serving you in the future. Sincerely, ~~~ . Rob Shoup North American Regional Manager RS:kI Serving the World~hride Energy Industry with Precision Survey Instrumentation Gyrodata Incorporated 1682 1N. Sam Houston Pkwy. N. Houston. Texas 77043 713!461-3146 Fax: 713/461-0920 SURVEY REPORT BP Drill Site 5 #05-34A Prudhoe Bay, AK AK0408G_120 19 Apr 2008 Serving the tNo~ld~~~id~ F-!Frey Industry .,'tf.1 Prey '~r ~ia~E / insi i„~ F ,i~±i~n ~-~ ~ ~ A Gyrodata Directional Survey for B.P. EXPLORATION Lease: Drill Site 5 Well: OS-34A, 4" Drillpipe Location: Nabors #7ES, Prudhoe Bay, Alaska Job Number: AK0408G 120 Run Date: 19 Apr 2008 Surveyor: Steve Thompson Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.264848 deg. N Longitude: 148.405333 deg. W Azimuth Correction: Gyro: Bearings are Relative to True North Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Well Head Location • A Gyrodata Directional Survey B.P. Exploration Lease: Drill Site 5 Well: OS-34A, 4" Drillpipe Location: Nabors #7ES, Prudhoe Bay, Alaska Job Number: AK0408G 120 MEASURED I N C L AZIMUTH BORE HOLE DEPTH BEARING feet deg. deg. deg. min. DOGLEG VERTICAL CLOSURE SEVERITY DEPTH DIST. AZIMUTH deg./ feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 3189.40 1.20 317.70 N 42 18 W 0.00 3188.25 73.5 65.6 30.35 N 66.89 E ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 3216 - 3696 FT. RATE GYROSCOPIC MULTISHOT SURVEY RUN INSIDE 4" DRILLPIPE TIE-IN DATA PROVIDED FROM BOSS GYRO SURVEY ALL MEASURED DEPTHS AND COORDINATES REFERENCED TO NABORS #7ES ROTARY TABLE AT 62.40 FT. ASML ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 3216.00 1.44 342.58 N 17 25 W 2.30 3260.00 2.99 350.76 N 9 14 W 3.59 3311.00 5.32 335.54 N 24 28 W 5.02 3408.00 9.19 343.79 N 16 12 W 4.12 3506.00 11.02 328.00 N 32 0 W 3.37 3601.00 12.74 312.92 N 47 5 W 3.72 3696.00 14.61 300.45 N 59 33 W 3.66 Final Station Closure: Distance: 94.00 ft Az: 14.41 deg. 3214.84 73.4 65.1 30.87 N 66.60 E 3258.81 73.8 63.8 32.53 N 66.25 E 3309.67 74.4 61.0 36.00 N 65.06 E 3405.88 77.4 52.1 47.53 N 61.03 E 3502.37 82.9 40.5 63.00 N 53.88 E 3595.36 88.2 28.0 77.84 N 41.40 E 3687.68 94.0 14.4 91.05 N 23.39 E • 2 B.P. Exploration :Well: Drill Site 5 05-34A 4" Drillpipe Location: Nabors #7ES, Prudhoe Bay, Alaska 90 85 80 75 70 65 C7 z. ~ 60 z: 55 50- 45- 40- 35- 30- Outrun Gyrodata AK0408G_120 DEFINITIVE - I I ! i I ~ - --- -- BOTT M HOLE ~ _- __ ______ _ -___.__-_____-- .___.-____-. ____._.__--_.____ _______--__y _____.___.___.___ MD: 3 96.00 j ~ - ----- - ----- ------- I i -- __ ----- ~--- ------ -i ------ --------- -- ------ - -------_-- -- - ---- ~---._. --------- ~ --------- ------- ----- ___-- - __-_ - i ---------. _ _ II ~ _ _ _.._._ ---__--- - ---- - - -- --- j _ _ . ----- _--- ---- ~ - --- ---- __ _ ----- --. _. _- ~ t--- -- --- ~ _ ___._._.. _--- - ' - _ - _ - t __ _ - --- ---- -----_ 1 --~ ----- _ ! - I I - ----i r ~ ~ - -- ----- - --- - - -- ----- -- -- _ .------~ ------- --_.__._ - ----- --- ---- _ _ --- -- -- _. __ __ --- . ------- ---- I ~ _ __ _ ----- - ~- -- - - ------- _ ------- --- - ---- -- __. _.__ -- -- - - ----- - ----. - ---_ _ _-_ _ - --- ------ - ------- ~ --------- ~ ~ - ------------- ~ ---- - ~ -- - ~ ~ ~ ~ ~ 25 30 35 40 45 50 55 60 65 FASTING (ft) r1 B.P, Exploration 'Well: Drill Site 5 05-34A 4" Drillpipe Location: Nabors #7ES, Prudhoe Bay, Alaska 15- 11 °0 10 rn a~ -~ 9 ~:. w 8 w': J 7 O ~ '6 5 4- '3 `2 Outrun Gyrodata _ AK0408G_120 DEFINITIVE ---- -- ~ ~ I----------- I~I - - -- -- -- - -- - - ------- a ~ _--- -----~ I - ----- -----~ I _ ___ - - I ~ -- -- -- - j I _ _ - _ _ _ _ I ------ - - ._ I III , _ ____ --- ___ _ _ i ~ ~ _--- ~ - - I --------- -------- -- ----- - --------- I E---------- --____- ___ ____------ -- ---~ --_ _____ __ i i -- _ ~ -= -- _-- - -- _ _ _ _ . __ -__ . - - ---- ---_. _---- -_ - _ - --1 - __ _ _- ----------- --- -_--_ - ---------- --- F - -- -- - ----- --------- __ _ --- - -- ------------ ---- _ _ ---- I -----__ ------ __-- - - - -.._ ------- . ____ _.. I - ---- ---------- ---- a I ~ -__._-- ------- --- ----- ~ ' --- __ i i ~ -- ----- _ - _ -__ ___ __ _-- ___ _-- - --- +---- _ __ ! - __~ __ ~ __ _- ----- ---- _-------- __--- ' -------___ ___._._ --_ L_ ..____--- -- -~ i j - -+ ~ -- _- _._.- _------ ------- __- ----- ---- ---- --- ------- -- ------ ---------~ I --------- I - -- - -- -- _....-- ~ ~--------- ---- ---_ _ ---- ---- ---- --~ Y-- --- ---- BOTTOM LOCATED ~ --- - OLE -- ---- - ----- ---- -J --- ---- ----- i M D : 3696 00 -- --- -- --, -- i --- --- ----- r- ,- -- i ~ --- --- ~ ~ ~ 3200 3250 3300 3350 3400 3450 3500 3550 3600 3650 3700 3750 MEASURED DEPTH (ft) B.P. Exploration _ Well: Drill. Site 5 05-34A 4" Drillpipe Location: Nabors #7ES, Prudhoe Bay, Alaska 71.4 71.2- 71.0 70.8 - u 70.6 rn a~ w 70.4 ~ - ~ :. F- 70.2- w ~ 70.0- 69.8- 69.6- 69.4 - 69.2- Outrun Gyrodata AK0408G_120 DEFINITIVE ~ ---- ~ ~ 1 ~-- ------ ~ I---- - ~ ---- _~--- i ~----- ---~ i ______ -~--_.. i ~ - ----- _; i .-_ _- __ ~~' - ------ -~ I I ---__-_-- _-- I. BOTTOM~ LOCATED; iOLE-- - - ' ~ ~ ~ MD: 3696 .00 1 i ~ ~ ~ ~ ~ ~ I - - I ~ ~ ---- ~ ~ ~ i ~ I --_ _-- - - __ _ _ _ . _ - - ------ . f -- _ _ -_ .._-. __ ~ I ~ ---------- -- ---- --------- ------- ,, _----------- - --_ ----- f-- - --- --- -------- - _ _. -- ~ - ~ ~ ---- --- ---- ------ --_ ---_ - --- _..__ _-- -- ~ _ ~ - ~ E---- ~ ~ -- - ~ ~ ~ ~ ~ ~ -~ ~ -------- ~ ~ I - '~~ ' i i -- ~ ~ -- -- } ~ ..- ~ .-. ..___-__ _ --____.-... I ~ __ . i ~_ ~ __....__._.. . -- r- -t ~ -. . - ~ - ~--- i -. ~ - - ICI ~ ~ -____._.___- ! _-_. _-___-__ IICI _____---- F_.__.___ _____ __.__._...-_ .. .... -_--____ I_ __._. _-__~ _ ______.-. _. ..____._-_ i -______ i ~ i ~ ~ i i 3200 3250 3300 3350 3400 3450 3500 3550 3600 3650 3700 3750 MEASURED DEPTH (ft) ~.P. Exploration _ '.Well: Drill Site 5 05-34A 4" Drillpipe Location: Nabors #7ES, Prudhoe Bay, Alaska 10 Z ` O H Q .. z .8- J U .. Z` 6 4 2 Outrun Gyrodata AK0408G_120 DEFINITIVE --- i ----- i j ~ ----- - ---- -- ~ i ~ I BOTTOM i LOCATED OLE I _._ _ ---- --- ~ -- - ----. ~ f --- - --_ _-- ~-- --- - ---- -_ . --- - - - -- - - _.. ._ _-- - - -- --- j --- - - ---- M D : 3696 _ _ 1.00 - _ - _ - -- _- -- - -------- -~ I - --- _ - _- - I --__ _ _ _ - I ___- _._ ~ ( I _ - __ I ~ L__ ___ .___ -- _ - --- - _- -- . - - - - _ - --- I i i ~ -I -- -- I I -~ - - ----- - ----._ .----- -- - I ---- ------ - - -- - - -- ------- ---------- ~ ------------- I i ---------------- I --- - _--- I i - ~~ ~ ~i j ! ~ i I I, ~ -- ~ I ! ~ I ~ 3200 3250 3300 3350 3400 3450 3500 3550 3600 3650 3700 3750 MEASURED DEPTH (ft) • • B.P. Exploration _ Well: Drill Site 5 05-34A 4" Drillpipe Location: Nabors #7ES, Prudhoe Bay, Alaska 350 345 340 335 330 ~ ;: ~ 325 N Q 320- 315 310- 305- 300 - Outrun Gyrodata AK0408G_120 DEFINITIVE - - - ---- _ ---- - -- ~ --------- - -- - -- i ,, i i ~ ------ ~ ----- - i ----- -- _ ---_ _ i ~ I I -~ I ----- ------ --------- ~ ~ ------------- --- ------ ----- ----___- I i __ _---- --- ~ - -------- ~ -------------I ~ ' ------_ -- - - -- - ~ -- ---- -. ---- i ------ I _ - ' -- .__ -- - - ---- - -- ~ ------- --- ~-- j --- ------ I I ----- - -------~ ~ ~ ---- - - --_._ ~. -- -___ __- r _ - - - _ _ ___~ -- ___. __ - ~ __------- -- - -- -- ---_ _ - - - _ I --- --- i I i ~ ~ BOTTOM LOCATE OLE --- ~ - -- - - ------ ---- -~ --- ~ --- -- M D : 369 00 3200 3250 3300 3350 3400 3450 3500 3550 3600 3650 3700 3750 MEASURED DEPTH (ft) c G oQ v' v SCHLUMBERGER Survey report Client .................... BP Exploration (Alaska) Inc Field ..................... Prudhoe Bay Well ...................... 05-34A API number ................ 50-029-22217-01 Engineer .................. JHudon COUNTY: NSB ............... NSB STATE: AK ................. AK ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS............ Mason & Taylor ----- Depth reference ---- Permanent datum........... Depth reference........... GL above permanent.......: KB above permanent.......: DF above permanent.......: Mean Sea Level Driller Depth 34.30 ft NA f t 62.4 ft ----- Vertical section origin---------------- Latitude (+N/S-).......... 0.00 ft Departure (+E/W-)......... 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).......... -999.25 ft Departure (+E/W-)......... -999.25 ft Azimuth from Vsect Origin to target: 300.00 degrees [(c)2008 IDEAL ID13 OC 08] 27-Apr-2008 12:19:43 Page 1 of 7 Spud date ................. 15-Apr-08 Last survey date.......... 27-Apr-08 Total accepted surveys...: 171 MD of first survey........ 0.00 ft MD of last survey........: 11060.75 ft ----- Geomagnetic data --- Magnetic model............ Magnetic date ............. Magnetic field strength..: Magnetic dec (+E/W-)...... Magnetic dip .............. - MWD sur Reference Reference Reference Tolerance Tolerance Tolerance Jey Reference Cri G ............... H ............... Dip ............. of G............ of H............ of Dip.......... ----------------- BGGM version 2007 15-Apr-2008 57679.69 GAMA 23.41 degrees 80.93 degrees teria --------- 1002.68 meal 57679.50 GAMA 80.93 degrees (+/-) 2.50 meal (+/-)300.00 GAMA (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 23.41 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-)....: 23.41 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type .... I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction SCHLUMBERGER Survey Report 27-Apr-2008 12:19:43 Page 2 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At # depth angle angle length depth section +N/S- +E/W- displ Azim - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 28.10 0.00 0.00 28.10 28.10 0.00 0.00 0.00 0.00 0.00 3 189.40 0.80 62.10 161.30 189.39 -0.60 0.53 1.00 1.13 62.10 4 289.40 1.00 63.00 100.00 289.38 -1.44 1.25 2.39 2.70 62.39 5 389.40 0.90 64.30 100.00 389.37 -2.36 1.99 3.87 4.35 62.86 6 489.40 1.30 74.70 100.00 489.35 -3.60 2.63 5.68 6.25 65.17 7 589.40 1.70 73.30 100.00 589.32 -5.42 3.35 8.19 8.85 67.75 8 689.40 1.70 76.20 100.00 689.27 -7.51 4.13 11.05 11.80 69.50 9 789.40 1.80 76.40 100.00 789.22 -9.71 4.85 14.02 14.84 70.90 10 889.40 1.80 80.70 100.00 889.18 -12.07 5.48 17.10 17.95 72.23 11 989.40 1.70 86.20 100.00 989.13 -14.51 5.83 20.13 20.95 73.84 12 1089.40 1.80 88.90 100.00 1089.08 -17.09 5.96 23.18 23.93 75.58 13 1189.40 1.80 87.60 100.00 1189.03 -19.76 6.05 26.32 27.00 77.04 14 1289.40 2.10 68.50 100.00 1288.98 -22.23 6.79 29.59 30.36 77.07 15 1389.40 2.10 81.80 100.00 1388.91 -24.81 7.72 33.11 34.00 76.87 lb 1489.40 2.20 82.40 100.00 1488.84 -27.77 8.24 36.82 37.73 77.39 17 1589.40 2.10 77.40 100.00 1588.77 -30.64 8.89 40.51 41.48 77.62 18 1689.40 2.00 75.30 100.00 1688.70 -33.23 9.74 43.99 45.05 77.52 19 1789.40 1.60 70.90 100.00 1788.65 -35.38 10.64 47.00 48.19 77.25 20 1889.40 1.70 62.90 100.00 1888.61 -37.10 11.77 49.64 51.01 76.66 21 1989.40 1.70 65.80 100.00 1988.57 -38.78 13.05 52.31 53.91 75.99 22 2089.40 1.80 62.10 100.00 2088.52 -40.48 14.39 55.05 56.90 75.35 23 2189.40 1.60 60.90 100.00 2188.48 -42.03 15.81 57.66 59.79 74.67 24 2289.40 1.90 55.90 100.00 2288.43 -43.47 17.42 60.25 62.72 73.88 25 2389.40 1.50 65.60 100.00 2388.39 -44.96 18.89 62.82 65.59 73.27 26 2489.40 1.50 67.70 100.00 2488.35 -46.52 19.92 65.22 68.20 73.01 27 2589.40 0.80 36.10 100.00 2588.33 -47.39 20.99 66.84 70.06 72.57 28 2689.40 0.90 358.90 100.00 2688.32 -47.06 22.33 67.24 70.85 71.62 29 2789.40 0.90 10.80 100.00 2788.31 -46.40 23.89 67.37 71.48 70.47 30 2889.40 0.90 11.50 100.00 2888.30 -45.89 25.43 67.67 72.30 69.40 ----- ----- ------ DLS Srvy Tool (deg/ tool Corr 100f) type (deg) 0.00 BP_UNKNOWN 0.00 BP_UNKNOWN 0.50 BP_BOSS GYRO 0.20 BP_BOSS GYRO 0.10 BP BOSS GYRO 0.45 BP_BOSS GYRO 0.40 BP_BOSS GYRO 0.09 BP_BOSS GYRO 0.10 BP_BOSS GYRO 0.14 BP BOSS GYRO 0.20 BP_BOSS GYRO 0.13 BP_BOSS GYRO 0.04 BP_BOSS GYRO 0.71 BP_BOSS GYRO 0.49 BP BOSS GYRO 0.10 BP BOSS GYRO 0.21 BP_BOSS GYRO 0.13 BP BOSS GYRO 0.42 BP_BOSS GYRO 0.25 BP BOSS GYRO 0.09 BP_BOSS GYRO 0.15 BP_BOSS GYRO 0.20 BP_BOSS GYRO 0.34 BP_BOSS GYRO 0.49 BP BOSS GYRO 0.05 BP_BOSS GYRO 0.92 BP_BOSS GYRO 0.55 BP_BOSS GYRO 0.19 BP_BOSS GYRO 0.01 BP BOSS GYRO r~ L_J [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 27-Apr-2008 12:19:43 Page 3 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 31 2989.40 0.90 11.90 100.00 2988.29 -45.40 26.97 67.99 73.15 68.36 0.01 BP _BOSS GYRO 32 3089.40 1.10 343.00 100.00 3088.27 -44.45 2$.66 67.87 73.68 67.11 0.54 BP _BOSS GYRO 33 3189.40 1.20 317.70 100.00 3188.25 -42.75 30.35 66.89 73.45 65.59 0.51 BP _BOSS GYRO 34 3224.00 1.20 334.15 34,60 3222.84 -42.11 30.94 66.49 73.33 65.04 0.99 BP _GYD GC SS 35 3244.00 2.90 350.76 20.00 3242.83 -41.61 31.63 66.31 73.47 64.50 8.92 BP _GYD GC SS 36 3260.00 2.99 350.76 16.00 3258.81 -41.09 32.44 66.18 73.71 63.89 0.56 BP _GYD CT DMS • 37 3311.00 5.32 345.25 51.00 3309.67 -38.59 36.04 65.37 74.64 61.13 4.63 BP _GYD CT DMS 38 3408.00 9.19 343.79 97.00 3405.88 -29.83 47.83 62.06 78.35 52.38 3.99 BP _GYD CT DMS 39 3506.00 11.02 328.00 98.00 3502.37 -15.90 63.30 54.91 83.79 40.94 3.37 BP _GYD CT DMS 40 3601.00 12.74 312.92 95.00 3595.36 2.33 78.13 42.42 88.91 28.50 3.72 BP _GYD CT DMS 41 3722.38 14.78 297.12 121.38 3713.29 30.85 94.31 18.83 96.17 11.29 3.51 BP _MWD+IFR+MS 42 3817.23 15.13 300.59 94.85 3804.93 55.31 106.13 -2.60 106.16 358.60 1.01 BP _MWD+IFR+MS 43 3913.26 15.31 299.87 96.03 3897.59 80.52 118.82 -24.38 121.29 348.41 0.27 BP _MWD+IFR+MS 44 4009.31 16.36 299.73 96.05 3989.99 106.73 131.84 -47.12 140.01 340.33 1.09 BP _MWD+IFR+MS 45 4104.19 17.34 301.59 94.88 4080.80 134.23 145.88 -70.77 162.14 334.12 1.18 BP _MWD+IFR+MS 46 4200.92 17.21 303.58 96.73 4173.17 162.92 161.34 -94.97 187.22 329.52 0.63 BP _MWD+IFR+MS 47 4296.67 17.35 301.83 95.75 4264.59 191.32 176.71 -118.90 212.99 326.06 0.56 BP _MWD+IFR+MS 48 4390.83 17.74 302.12 94.16 4354.37 219.69 191.74 -142.98 239.18 323.29 0.42 BP _MWD+IFR+MS 49 4486.85 16.70 301.72 96.02 4446.09 248.10 206.77 -167.10 265.85 321.06 1.09 BP _MWD+IFR+MS 50 4583.72 16.75 300.94 96.87 4538.86 275.97 221.27 -190.92 292.25 319.21 0.24 BP _MWD+IFR+MS 51 4677.52 16.36 300.53 93.80 4628.77 302.70 234.93 -213.89 317.71 317.68 0.43 BP _MWD+IFR+MS 52 4774.43 15.89 300.00 96.91 4721.87 329.61 248.49 -237.13 343.48 316.34 0.51 BP _MWD+IFR+MS 53 4867.96 17.30 300.05 93.53 4811.50 356.32 261.86 -260.26 369.20 315.18 1.51 BP _MWD+IFR+MS 54 4963.22 17.36 299.13 95.26 4902.44 384.70 275.87 -284.94 396.60 314.07 0.29 BP _MWD+IFR+MS 55 5059.56 17.00 298.24 96.34 4994.48 413.14 289.53 -309.90 424.10 313.05 0.46 BP _MWD+IFR+MS 56 5154.50 16.52 297.15 94.94 5085.39 440.50 302.26 -334.14 450.56 312.13 0.60 BP _MWD+IFR+MS 57 5250.80 18.09 300.65 96.30 5177.33 469.13 316.13 -359.18 478.49 311.35 1.96 BP _MWD+IFR+MS 58 5346.03 17.72 300.52 95.23 5267.94 498.40 331.02 -384.39 507.28 310.73 0.39 BP _MWD+IFR+MS 59 5441.33 17.71 299.43 95.30 5358.73 527.40 345.51 -409.51 535.79 310.16 0.35 BP _MWD+IFR+MS 60 5537.15 18.52 301.54 95.82 5449.8fl 557.18 360.63 -435.17 565.18 309.65 1.09 BP _MWD+IFR+MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 27-Apr-2008 12:19:43 Page 4 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f} type (deg) 61 5631.96 18.71 301.07 94.81 5539.65 587.44 376.36 -461.03 595.14 309.23 0.26 BP_ MWD+IFR+MS 62 5727.58 18.47 300.85 95.62 5630.28 617.92 392.04 -487.17 625.32 308.82 0.26 BP_ MWD+IFR+MS 63 5824.28 18.67 299.28 96.70 5721.94 648.71 407.47 -513.82 655.77 308.41 0.56 BP_ MWD+IFR+MS 64 5919.30 18.82 298.53 95.02 5811.92 679.24 422.22 -540.55 685.91 307.99 0.30 BP_ MWD+IFR+MS 65 6014.25 18.28 299.21 94.95 5901.94 709.44 436.81 -567.00 715.74 307.61 0.61 BP MWD+IFR+MS 66 6109.67 17.34 298.77 95.42 5992.79 738.62 450.95 -592.53 744.61 307.27 1.00 BP_ MWD+IFR+MS • 67 6204.99 17.82 298.06 95.32 6083.65 767.40 464.65 -617.85 773.07 306.94 0.55 BP_ MWD+IFR+MS 68 6301.73 17.65 297.46 96.74 6175.80 796.85 478.38 -643.93 802.18 306.61 0.26 BP_ MWD+IFR+MS 69 6396.58 17.24 296.05 94.85 6266.28 825.23 491.18 -669.31 830.20 306.27 0.62 BP_ MWD+IFR+MS 70 6492.40 18.45 299.35 95.82 6357.49 854.56 504.85 -695.29 859.24 305.98 1.65 BP_ MWD+IFR+MS 71 6588.41 18.74 299.00 96.01 6448.49 885.17 519.77 -722.02 889.65 305.75 0.32 BP_ MWD+IFR+MS 72 6684.60 19.42 301.91 96.19 6539.40 916.61 535.72 -749.11 920.96 305.57 1.22 BP_ MWD+IFR+MS 73 6778.68 19.15 301.29 94.08 6628.20 947.67 552.00 -775.57 951.95 305.44 0.36 BP_ MWD+IFR+MS 74 6874.66 18.44 300.74 95.98 6719.06 978.58 567.93 -802.07 982.79 305.30 0.76 BP_ MWD+IFR+MS 75 6970.55 17.90 300.28 95.89 6810.17 1008.48 583.12 -827.83 1012.59 305.16 0.58 BP_ MWD+IFR+MS 76 7065.97 17.40 299.54 95.42 6901.10 1037.41 597.54 -852.91 1041.40 .305.01 0.57 BP_ MWD+IFR+MS 77 7161.96 16.81 301.67 95.99 6992.84 1065.64 611.91 -877.21 1069.55 304.90 0.90 BP_ MWD+IFR+MS 78 7257.67 15.12 299.03 95.71 7084.86 1091.96 625.23 -899.91 1095.79 304.79 1.92 BP_ MWD+IFR+MS 79 7351.92 15.25 299.31 94.25 7175.82 1116.64 637.27 -921.46 1120.36 304.67 0.16 BP_ MWD+IFR+MS 80 7447.96 15.42 299.88 96.04 7268.44 1142.04 649.81 -943.55 1145.66 304.55 0.24 BP_ MWD+IFR+MS 81 7543.50 15.21 300.09 95.54 7360.58 1167.28 662.42 -965.40 1170.82 304.46 0.23 BP MWD+IFR+MS • 82 7639.44 15.63 302.95 95.94 7453.07 1192.77 675.76 -987.14 1196.28 304.39 0.91 BP_ MWD+IFR+MS 83 7734.62 15.80 304.09 95.18 7544.69 1218.50 690.00 -1008.63 1222.06 304.38 0.37 BP_ MWD+IFR+MS 84 7830.39 16.02 303.63 95.77 7636.80 1244.69 704.62 -1030.43 1248.31 304.36 0.26 BP _MWD+IFR+MS 85 7925.87 16.55 304.88 95.48 7728.45 1271.39 719.70 -1052.56 1275.08 304.36 0.67 BP MWD+IFR+MS 86 8021.18 16.34 301.65 95.31 7819.86 1298.32 734.50 -1075.11 1302.05 304.34 0.98 BP MWD+IFR+MS 87 8117.13 15.54 299.75 95.95 7912.12 1324.66 747.96 -1097.76 1328.35 304.27 1.00 BP _MWD+IFR+MS 88 8212.10 15.03 297.58 94.97 8003.73 1349.69 759.97 -1119.72 1353.26 304.17 0.81 BP _MWD+IFR+MS 89 8308.03 17.10 299.66 95.93 8095.91 1376.22 772.71 -1143.00 1379.68 304.06 2.24 BP _MWD+IFR+MS 90 8404.31 16.98 301.51 96.28 8187.96 1404.43 787.06 -1167.29 1407.84 303.99 0.58 BP _MWD+IFR+MS [(c)2008 IDEAL ID13_OC_08] SCHLUMBERGER Survey Report 27-Apr-2008 12:19:43 Page 5 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) {ft} (ft) (ft) (deg) 100f} type (deg) 91 8435.80 15.64 300.92 31.49 8218.19 1413.27 791.65 -1174.85 1416.68 303.97 4.29 BP_ MWD+IFR+MS 92 8499.88 15.99 301.20 64.08 8279.84 1430.73 800.66 -1189.81 1434.12 303.94 0.56 BP_ MWD+IFR+MS 93 8568.94 15.58 301.80 69.06 8346.30 1449.51 810.47 -1205.83 1452.89 303.91 0.64 BP_ INC+TREND 94 8600.58 15.56 302.10 31.64 8376.77 1458.00 814.97 -1213.03 1461.38 303.89 0.26 BP_ INC+TREND 95 8632.51 15.31 302.33 31.93 8407.55 1466.49 819.50 -1220.22 1469.87 303.89 0.81 BP_ MWD+IFR+MS 96 8664.02 15.02 303.16 31.51 8437.96 1474.72 823.95 -1227.16 1478.11 303.88 1.15 BP_ MWD+IFR+MS . 97 8695.60 14.64 303.28 31.58 8468.49 1482.79 828.38 -1233.92 1486.19 303.88 1.21 BP_ MWD+IFR+MS 98 8728.29 15.86 298.41 32.69 8500.03 1491.39 832.78 -1241.30 1494.77 303.86 5.41 BP_ MWD+IFR+MS 99 8759.51 17.65 292.17 31.22 8529.93 1500.34 836.59 -1249.44 1503.65 303.81 8.12 BP_ MWD+IFR+MS 100 8791.44 19.52 286.12 31.93 8560.20 1510.32 839.90 -1259.05 1513.48 303.71 8.41 BP_ MWD+IFR+MS 101 8824.14 21.17 280.96 32.70 8590.86 1521.20 842.54 -1270.09 1524.14 303.56 7.45 BP_ MWD+IFR+MS 102 8856.14 22.99 276.24 32.00 8620.51 1532.39 844.32 -1281.98 1535.04 303.37 7.94 BP_ MWD+IFR+MS 103 8888.23 24.75 272.12 32.09 8649.86 1544.06 845.25 -1294.92 1546.37 303.13 7.55 BP_ MWD+IFR+MS 104 8919.90 26.90 269.57 31.67 8678.36 1556.10 845.44 -1308.72 1558.04 302.86 7.64 BP_ MWD+iFR+MS 105 8951.21 29.48 265.72 31.31 8705.96 1568.58 844.81 -1323.48 1570.13 302.55 10.08 BP_ MWD+IFR+MS 106 8983.99 32.84 263.63 32.78 8734.01 1582.40 843.22 -1340.37 1583.54 302.17 10.77 BP_ MWD+IFR+MS 107 9015.44 36.06 260.10 31.45 8759.94 1596.38 840.68 -1357.97 1597.13 301.76 12.04 BP_ MWD+IFR+MS 108 9047.38 39.45 258.19 31.94 8785.19 1611.15 836.99 -1377.17 1611.56 301.29 11.23 BP_ MWD+IFR+MS 109 9079.56 42.24 255.63 32.18 8809.53 1626.51 832.21 -1397.66 1626.66 300.77 10.11 BP_ MWD+IFR+MS 110 9111.12 45.28 252.60 31.56 8832.33 1641.69 826.22 -1418.64 1641.70 300.22 11.70 BP_ MWD+IFR+MS 111 9142.98 48.20 248.32 31.86 8854.16 1656.72 818.45 -1440.49 1656.76 299.60 13.40 BP_ MWD+IFR+MS i 112 9174.94 52.44 247.64 31.96 8874.57 1671.85 809.22 -1463.28 1672.14 298.94 13.37 BP_ MWD+IFR+MS 113 9206.21 58.52 249.25 31.27 8892.28 1687.87 799.78 -1487.24 1688.64 298.27 19.90 BP_ MWD+IFR+MS 114 9237.85 64.58 249.83 31.64 8907.35 1705.58 790.06 -1513.29 1707.11 297.57 19.22 BP_ MWD+IFR+MS 115 9269.59 70.87 250.33 31.74 8919.37 1724.48 780.06 -1540.89 1727.09 296.85 19.87 BP_ MWD+IFR+MS 116 9302.37 77.33 249.56 32.78 8928.35 1744.71 769.25 -1570.49 1748.77 296.10 19.84 BP _MWD+IFR+MS 117 9333.57 82.00 246.15 31.20 8933.94 1763.53 757.68 -1598.90 1769.34 295.36 18.43 BP _MWD+IFR+MS 118 9364.96 85.56 240.54 31.39 8937.35 1780.67 743.68 -1626.77 1788.70 294.57 21.08 BP _MWD+IFR+MS 119 9396.06 89.30 235.31 31.10 8938.74 1795.21 727.19 -1653.08 1805.96 293.74 20.66 BP _MWD+IFR+MS 120 9427.58 88.68 230.65 31.52 8939.30 1807.51 708.22 -1678.24 1821.56 292.88 14.91 BP _MWD+IFR+MS [(c)2008 IDEAL ID13 OC 08) a SCHLUMBERGER Survey Report 27-Apr-2008 12:19:43 Page 6 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg} 121 9459.40 87.31 225.64 31.82 8940.41 1817.41 687.01 -1701.92 1835.35 291.98 16.31 BP_ MWD+IFR+MS 122 9492.89 89.22 218.70 33.49 8941.43 1824.46 662.22 -1724.37 1847.16 291.01 21.48 BP_ MWD+IFR+MS 123 9524.56 82.75 217.97 31.67 8943.64 1829.04 637.45 -1743.96 1856.81 290.08 20.56 BP MWD+IFR+MS 124 9565.68 82.30 214.83 41.12 8949.00 1833.58 604.64 -1768.15 1868.68 288.88 7.65 BP _MWD+IFR 125 9596.80 86.54 214.77 31.12 8952.02 1836.18 579.21 -1785.82 1877.41 287.97 13.63 BP_ MWD+IFR+MS 126 9628.48 87.69 214.32 31.68 8953.62 1838.68 553.15 -1803.77 1886.68 287.05 3.90 BP MWD+IFR+MS • 127 9660.40 90.77 214.13 31.92 8954.04 1841.03 526.76 -1821.71 3896.35 286.13 9.67 BP _MWD+IFR+MS 128 9692.34 90.57 214.14 31.94 8953.67 1843.34 500.33 -1839.64 1906.46 285.21 0.63 BP _MWD+IFR+MS 129 9724.58 89.26 212.70 32.24 8953.72 1845.2.6 473.42 -1857.39 1916.78 284.30 6.04 BP _MWD+IFR+MS 130 9755.87 88.17 211.59 31.29 8954.42 1846.43 446.94 -1874.04 1926.59 283.41 4.97 BP MWD+IFR+MS 131 9788.49 88.20 210.75 32.62 8955.45 1847.10 419.04 -1890.91 1936.79 282.50 2.58 BP _MWD+IFR+MS 132 9820.25 88.17 208.95 31.76 8956.46 1847.01 391.51 -1906.71 1946.49 281.60 5.67 BP _MWD+IFR+MS 133 9851.83 87.72 206.78 31.58 8957.59 1845.84 363.61 -1921.46 1955.56 280.72 7.01 BP _MWD+IFR+MS 134 9883.97 87.27 203.36 32.14 8959.00 1843.08 334.53 -1935.06 1963.77 279.81 10.72 BP _MWD+IFR+MS 135 9916.22 87.00 200.31 32.25 8960.61 1838.51 304.63 -1947.04 1970.73 278.89 9.48 BP _MWD+IFR+MS 136 9947.62 87.27 196.83 31.40 8962.18 1832.29 274.91 -1957.03 1976.24 278.00 11.10 BP _MWD+IFR+MS 137 9980.20 88.44 193.23 32.58 8963.40 1823.88 243.47 -1965.47 1980.49 277.06 11.61 BP MWD+IFR+MS 138 10012.32 88.78 190.13 32.12 8964.18 1813.79 212.03 -1971.97 1983.33 276.14 9.71 BP _MWD+IFR+MS 139 10043.21 88.54 187.23 30.89 8964.90 1802.56 181.51 -1976.63 1984.94 275.25 9.42 BP _MWD+IFR+MS 140 10075.68 88.16 183.54 32.47 8965.84 1789.05 1.49.20 -1979.67 1985.29 274.31 11.42 BP _MWD+IFR+MS 141 10107.95 88.68 180.12 32.27 8966.73 1773.82 116.96 -1980.70 1984.15 273.38 10.72 BP _MWD+IFR+MS • 142 10139.50 88.30 176.97 31.55 8967.56 1757.37 85.44 -1979.90 1981.75 272.47 10.05 BP _MWD+IFR+MS 143 10170.94 88.17 174.76 31.44 8968.53 1739.73 54.10 -1977.64 1978.38 271.57 7.04 BP _MWD+IFR+MS 144 10203.33 88.58 174.56 32.39 8969.45 1721.01 21.86 -1974.62 1974.74 270.63 1.41 BP _MWD+IFR+MS 145 10235.33 87.75 173.72 32.00 8970.47 1702.27 -9.96 -1971.36 1971.38 269.71 3.69 BP MWD+IFR+MS 146 10266.89 87.34 174.11 31.56 8971.82 1683.70 -41.31 -1968.02 1968.45 268.80 1.79 BP _MWD+IFR+MS 347 10298.83 87.44 173.84 31.94 8973.28 1664.93 -73.04 -1964.67 1966.02 267.87 0.90 BP _MWD+IFR+MS 148 10331.25 87.38 174.19 32.42 8974.74 1645.90 -105.25 -1961.29 1964.11 266.93 1.09 BP _MWD+IFR+MS 149 10362.32 86.96 175.40 31.07 8976.28 1628.01 -136.15 -1958.47 1963.20 266.02 4.12 BP _MWD+IFR+MS 350 10394.37 86.38. 175.31 32.05 8978.14 1609.82 -168.04 -1955.88 1963.09 265.09 1.83 BP _MWD+IFR+MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 27-Apr-2008 12:19:43 Page 7 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +EIW- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) IOOf) type (deg) 151 10426.07 86.38 175.07 31.70 8980.14 1591.76 -199.57 -1953.23 1963.40 264.17 0.76 BP_ MWD+IFR+MS 152 10457.92 86.76 175.43 31.85 8982.04 1573.64 -231.25 -1950.60 1964.26 263.24 1.64 BP_ MWD+IFR+MS 153 10490.48 86.28 175.83 32.56 8984.02 1555.29 -263.66 -1948.12 1965.88 262.29 1.92 BP_ MWD+IFR+MS 154 10521.85 86.28 176.07 31.37 8986.06 1537.77 -294.88 -1945.91 1968.13 261.38 0.76 BP_ MWD+IFR+MS 155 10554.11 86.31 176.14 32.26 8988.14 1519.81 -327.00 -1943.72 1971.04 260.45 0.24 BP_ MWD+IFR+MS 156 10586.07 85.62 176.64 31.96 8990.39 1502.17 -358.82 -1941.72 1974.59 259.53 2.66 BP_ MWD+IFR+MS • 157 10617.52 86.00 176.86 31.45 8992.69 1484.97 -390.13 -1939.94 1978.78 258.63 1.40 BP_ MWD+IFR+MS 158 10649.42 86.31 177.01 31.90 8994.83 1467.60 -421.92 -1938.24 1983.63 257.72 1.08 BP_ MWD+IFR+MS 159 10682.64 86.48 176.79 33.22 8996.92 1449.50 -455.02 -1936.44 1989.19 256.78 0.84 BP_ MWD+IFR+MS 160 10712.19 86.76 177.02 29.55 8998.66 1433.39 -484.48 -1934.85 1994.58 255.94 1.23 BP_ MWD+IFR+MS 161 10745.00 87.00 176.78 32.81 9000.45 1415.50 -517.19 -1933.08 2001.07 255.02 1.03 BP_ MWD+IFR+MS 162 10776.95 87.31 177.01 31.95 9002.03 1398.07 -549.06 -1931.35 2007.88 254.13 1.21 BP_ MWD+IFR+MS 163 10807.85 87.68 176.76 30.90 9003.38 1381.21 -579.88 -1929.67 2014.92 253.27 1.44 BP_ MWD+IFR+MS 164 10840.30 88.03 177.60 32.45 9004.60 1363.63 -612.27 -1928.08 2022.96 252.38 2.80 BP_ MWD+IFR+MS 165 10872.62 88.37 176.83 32.32 9005.61 1346.14 -644.53 -1926.51 2031.47 251.50 2.60 BP_ MWD+IFR+MS 166 10904.28 88.41 177.22 31.66 9006.50 1328.91 -676.14 -1924.87 2040.16 250.65 1.24 BP _MWD+IFR+MS 167 10936.55 88.95 176.63 32.27 9007.25 1311.31 -708.35 -1923.14 2049.44 249.78 2.48 BP _MWD+IFR+MS 168 10968.59 88.71 177.13 32.04 9007.90 1293.81 -740.34 -1921.39 2059.09 248.93 1.73 BP _MWD+IFR+MS 169 11000.10 88.54 176.48 31.51 9008.66 1276.56 -771.79 -1919.64 2068.98 248.10 2.13 BP _MWD+IFR+MS 170 11032.70 88.13 176.27 32.60 9009.60 1258.51 -804.31 -1917.58 2079.43 247.24 1.41 BP _MWD+IFR+MS 171 11060.75 87.89 176.55 28.05 9010.58 1243.01 -832.29 -1915.82 2088.80 246.52 1.31 BP _MWD+IFR+MS • 172 11115.00 87.89 176.55 54.25 9012.57 1243.01 -886.41 -1912.56 2107.89 245.13 0.00 Project to TD [(0)2008 IDEAL ID13 OC 08] ~ ~ Schlumberger Drilling 8< Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Well No 05-34a Installation/Rig Nabors 7ES Dispatched By: Dispatched To: Christine Mahnken (AOGCC) Date Dispatched: 13-Apr-08 F. Medina Data No Of Prints No of Flo ies Surveys 2 1 Please sign and return to: James H. Johnson Received By: ~ BP Exploration (Alaska) Inc. Petrotechnigl Data Center (LR2-1) 900 E. Benson Blvd. Anchorage, Alaska 99508 Fax: 907-5641005 e-mail address: johnsojhQbp.com LWD Log Delivery V2.1, 03-06-06 Maunder, Thomas E (DOA) From: Nigh, Jim [Jim.Nigh@bp.com] Sent: Monday, March 31, 2008 5:36 PM To: Maunder, Thomas E (DOA); Hobbs, Greg S (ANC) Subject: RE: DS 05-34A Importance: Low Gentlemen, A few minor updates: Page 1 of 2 We have changed the TOC for the 7" liner to 4,235' MD and are going to use 12.0 ppg LiteCrete (yield = 2.45 cf/sx) for the lead. New volume for lead is 75 bbls, 708 cf, 289 sx. Sorry for the confusion/last minute changes. Please let me know if you have any questions. Thank you, -Jim From: Hobbs, Greg S (ANC) Sent: Wednesday, March 26, 2008 9:23 AM To: Maunder, Thomas E (DOA) Cc: Nigh, Jim Subject: RE: DS 05-34A Tom- I apologize, I was out yesterday. Iran the calculations and concur with the 490 sks. I came up with 488.2 or 489, so 490 will be a good number for the permit. Thanks! Greg From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Tuesday, March 25, 2008 8:31 AM To: Hobbs, Greg S (ANC) Cc: Nigh, Jim Subject: RE: DS 05-34A Greg and Jim, I was plugging in the correct lead yield and it appears the sx count needs to be decreased. The 140 bbl desired slurry volume is correct per the column height and hole/casing size. Using the 1.61 yield gives 490 sx. 5/22/2008 Page 2 of 2 Please confirm and I will update the application. Tom Maunder, PE AOGCC From: Maunder, Thomas E (DOA) Sent: Tuesday, March 25, 2008 8:00 AM To: 'Hobbs, Greg S (ANC)' Cc: Nigh, Jim Subject: RE: DS OS-34A ('~ Thanks Greg and Jim. This answers the questions. ~~ ~"~ Tom From: Hobbs, Greg S (ANC} [mailto:Greg.Hobbs@bp.com] Sent: Monday, March 24, 2008 5:29 PM To: Maunder, Thomas E (DOA) Cc: Nigh, Jim Subject: RE: DS 05-34A Hi Tom- Looks like Jim inadvertantly left the yield of the 15.8 in there. The planned Crete blend has a yield of 1.61 ft3/sk. Also, regarding the ES Cementer, the original thought was to place an ES Cementer in the string to assure we can keep the TOC below the surface casing shoe. Cement would be pumped, the cementer opened, circulation established, and freeze protect and brine placed there after cementing. We are now discussing leaving it out and pumping down the annulus to assure the shoe is clear and pump freeze protect as they are doing on the west end. In re-reading the steps, we were not clear on the intended use of the diverter, which was assuring TOC placement below the surface shoe and placement of freeze protect. Given that we are still contemplating its use, we would like to state that it is an option for circulation if we run it, not for cementing purposes. Sorry about the confusion- Thanks- Greg From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Monday, March 24, 2008 3:49 PM To: Nigh, Jim Cc: Hobbs, Greg S (ANC) Subject: DS 05-34A Jim and Greg, I am reviewing the permit application and have a question: 1. What is the yield for the 7" lead cement? 1.16 seems low for 12.5 ppg slurry. Thanks in advance. 1 may have other questions, but wanted to get this ofF. Tom Maunder, PE AOGCC 5/2212008 ~~ ~ ~ ~ SARAH PALIN, GOVERNOR Lrirt>•.-7.ot'>• OIL ~i`L ~ 333 W. 7th AVENUE, SUITE 100 COI~TSI:RVA'1'IO1~T COI~IDIISSIOI~T ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Greg Hobbs - Engineering Team Leader BP Exploration Alaska, Inc. PO Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay, Prudhoe Bay Oil Pool, PBU 05-34A BP Exploration Alaska, Inc. Permit No: 208-037 Surface Location: 2441' FNL, 148' FWL, SEC. 32, T11N, R15E, UM Bottomhole Location: 3321' FNL, 1774' FEL, SEC. 31, T11N, R15E, UM Dear Mr. Hobbs: Enclosed is the approved application for permit to redrill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with, AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission speci$cally 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). incerely, Daniel . Seamount, Jr. - /~ Chair T' DATED this Z~ day of March, 2008 cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA~~ ALAS~IL AND GAS CONSERVATION COMMI ,N PERMIT TO DRILL `~la-~ 20 AAC 25.005 RE~~~~~~ MAR 0 6 2008 1 a. Type of work ^ Drill ®Redrill ^ Re-Entry 1 b. Current Well Class ^ Exploratory ^ Development Gas ^ Service ^ Multiple Zone ^ Stratigraphic Test ®Development Oil ^ Single Zone 1 c. S I o . ^ Coalbed Meth ydrates ^ Shale Gas 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 11. Well Name and Number: PBU 05-34A 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD ~-11136 TVD', 9013 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay 4a. Location of Well (Governmental Section): Surface: 2441' FNL448' FWL SEC 32 T11N R15E UM 7. Property Designation: '~ ADL 028326 Pool , , . , , Top of Productive Horizon: 1607 FNL, 1060' FEL, SEC. 31, T11N, R15E, UM 8. Land Use Permit: 13. Approximate Spud Date: April 15, 2008 Total Depth: 3321' FNL, 1774' FEL, SEC. 31, T11N, R15E, UM 9. Acres in Property: r 2560 14. Distance to Nearest Property: 21,000' 4b. Location of Well (State Base Plane Coordinates): Surface: x-697218 y-5949005 Zone-ASP4 10. KB Elevation Plan (Height above GL):" 62.8 feet 15. Distance to Nearest Well Within Pool: 550' 16. Deviated Wells: Kickoff Depth: 3590 feet Maximum Hole An le: ~ 88 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole:'~ 3585 Surface:` 2704 18. Casin Pro ram: S ecit'icatio ns To - ettin D th -Bo ttom uanti of Cement c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta a data 7-5/8" 7" 26# L-80 TC-II 3750' Surface Surface 3750' 3750' See Below 8-1/2" 7" 26# L-80 BTC-M 4824' 3750' 3750' 8574' 8279' 786 cu ft Class'G' 106 cu ft Class'G' 6-1/8" 4-112" 12.6# 13Cr VamTo 2712' 8424' 8158' 11136' 8950' 387 cu ft Class'G' 19. PRESENT WELL CONDITION SUMMARY (To'be completed for Redrill and Re-entry Operations) Total Depth MD (ft): 10163 Total Depth TVD (ft): 9058 Plugs (measured): 8093 Effective Depth MD (ft): 8093 Effective Depth TVD (ft): 7648 Junk (measured): 9900 Casing Length ize Cement Volume MD TVD Conductor /Structural 110' 20" 11 ards Coldset 110' 110' Surface 3506' 10-3/4" 2486 cu ft CS III 405 cu ft Class'G' 3506' 3505' Intermediate 9179' 7-5/8" 569 cu ft Class'G' 305 cu ft Class'G' 9179' 8432' Producti n Liner 1281' 5-1/2" 170 cu ft Class'G' 8880' - 10161' 8215' - 9057' Perforation Depth MD (ft): None Perforation Depth TVD (ft): N/A 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 fP a oing is true and correct. Contact Jim Nigh, 564-5220 Printed Name Greg Title Engineering Team Leader Prepared By Name/Number: Si nature Phone 564-4191 Date .4 G ~ Terrie Hubble, 564-4628 Commission Use Onl Permit To Drill - Number: O O,~~l.~ API Number: 50-029-22217-01-00 Permit A royal See cover letter for Date: other re uirements Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed me_th/ane, gas hydrates, or gas contained shales: J Samples Req'd: ^ Yes LYI No Mud Log Req'd: ,^~/Yes L10 No HzS Measures: [Yes ^ No Directional Survey Req'd: Lip Yes ^ No Other: Z~ ~ APPROVED BY THE COMMISSION Date ,COMMISSIONER Form 10-401 Revise 12/2005 O R I G I~ A L Submit In Duplicate ~~i~~gir r~t;~h ~r~~~ ~~ -~,, ~r ,~io,~ To: Alaska Oil & Gas Conservation Commission ~'` ~ ~- From: Jim Nigh, Operations Drilling Engineer °~~'~''~~4 Cc: James Dean, Asset Team Lead/Pad Engineer Priya Maraj, Geologist Tom Plawman, Geophysicist Date: March 6, 2008 Re: 05-34A Sidetrack Permit to Drill The 05-34A sidetrack is scheduled to be drilled by Nabors Rig 7ES around April 15, 2008. WELL HISTORY: Well 5-34 was completed as a Z1A/Z16 selective completion in October 1991. A rig workover was performed in March 1992 to replace the leaking lower production straddle packer. Dummy valves were installed in the production mandrels in March 1995 to shut off the high GOR Z16 production. The zone 1A completion was fractured in September 1995. 5-34 produced almost full time 1995 until 1996. A sharp 10 mmcfd gas rate increase in March 2001 indicates the production straddle valves were likely leaking. Following an extended shut-in in late 2004, 5-34 began producing over 1000 bwpd and the water rate climbed to 7000 bwpd. The well is not located near a current Ivishak injection source so a Cretaceous casing and tubing leak were suspected. In December 2005, an obstruction was encountered at 5016' while trying to seta 3-1/2" PX plug. The obstruction was broached with a 3.81" broach, but a 2.85" GR was the largest sized drifted past the obstruction. Attempts to seta 2-7/8" plug in the production straddle were also unsuccessful. An IBP was set at 8600' to secure the well in March 2006. Following the IBP, the tubing failed aMIT-T with a LLR of 2 bpm at 1900 psi. The IA had a leak rate of 2.9 bpm at 1250 psi. A March 2006 caliper log found severe tubing corrosion and detected a hole at 5038'. Prior to running the caliper, a SL bailer run found sand on top of the IBP. The IBP was leaking and well 05-34 needed to be secured. A cement squeeze was pumped in August 2007 to secure the well. A MIT-OA failed in August 2007 with a leak rate of 0.35 bpm but no pressure was observed in the 10-3/4" x 20" annulus. REASON FOR SIDETRACK: 05-34 currently shut-in due to a 7-5/8" casing leak. Prior to the casing leak the well was producing at low oil rates and had no wellwork options. The well currently provides no value to the field. Making this high angle well more horizontal in Zone 1A will optimize standoff to gas. PROPOSED DRILLING & COMPLETION OPERATIONS: The 05-34 wellbore is already plugged and abandoned at 8,300'. In order to conduct this planned sidetrack, the existing 3-1/2" x 4-1/2" L-80 tubing will be cut at 4,500', pulled, and a CIBP will be set around 3,766'. Then the 7-5/8" casing will be cut and pulled from -3,500'. The rig will then mill -50-100' down the top of the 7-5/8". A cement plug will be laid on top of the CIBP up into the 10-3/4" casing (-100') and used to kick off the 8-1/2" intermediate hole section drilling BHA. After the intermediate section is drilled down to the top of the Sag River (--8,574'), it will be cased with 7" drilling liner and cemented to -150' above the cretaceous zone. The 6-1/8" horizontal production hole will be drilled to TD (-11,136') in Zone 1A before being cased with 4-1/2" L-80, cemented, and perforated (800' minimum). The well will be completed with a 4-1/2" 13CR Production string. 05-34A Sidetrack Page 1 05-34A Well Plan Summary Well 05-34A Well Sidetrack / Target Z1A T e Producer Ob'ective AFE Number: PBD4P2718 API Number: 50-029-22217-01 f S Northin Eastin Offsets TRS ur ace Location 5949005 697218 2839' FSL / 5132' FEL Sec 32, T11 N, R15E Northing Easting Offsets TRS TVDSS Target Sec 31, Location 1 5949807 695985 3673' FSL / 1060' FEL T11 N, -8380 R15E Northing Easting Offsets TRS TVDSS Target Sec 31, Location 2 5949266 695254 3150' FSL / 1807' FEL T11 N, -8900 R15E Northing Easting Offsets TRS TVDSS Target Sec 31, Location 3 5948942 695325 2825' FSL / 1745' FEL T11 N, -8913 R15E Northing Easting Offsets TRS TVDSS Bottom Sec 31, Location 5948076 695322 1959' FSL / 1774' FEL T11 N, -8950 R15E Planned KOP: 3590' MD Planned S ud: 04/15/08 Ri Nabors 7ES Planned Lateral TD: 11,136' Planned Lateral TVD: 9,013' TVD GL: 34.3' RTE: 62.8' Directional Program A roved Well Ian: WP6 Exit oint: 3490' MD / 3489' TVD Maximum Hole Inclination: ~88° from 9,471' to 9,927' Proximit Issues: No close a roach/proximi issues Survey Program: Gyro orientation will be required for the initial kick-off (since < 7 degrees). Standard MWD+IIFR+MS. Nearest Well: 15-04, 550' Nearest Property Line 21,000' 05-34A Sidetrack Page 2 Logging Program Hole Section: Required Sensors I Service 7-5/8" Cased hole USIT to determine cement icture behind 7-5/8" and well tie-in 8-1/2" Intermediate: DIR/GR/RES/PWD 6-1 /8" Production: DIR/GR/RES/Neu-Den Mud Program Hole Section /operation: 7-5/8" Milling ~ 8-112" Intermediate Hole Type: LSND Depth (ft) Density PV YP API FL m1/30min MBT pH 3500-8575 10.1 8 - 22 18 - 40 4.0 - 8.0 < 20 9 -10 Hole Section /operation: 6-118" Production Interval Type: FloPro SF Depth (ft) Density PV YP LSRV MBT pH 8575-11136 8.5 6 -12 22 - 28 > 20,000 < 4 9.0 - 9.5 Casing /Tubing Program Hole Size CasingITubing Size Wt. Grade Connection Length Top MD / TVD Bottom MD I TVD 7-5/8" 7" Drl Liner 26# L-80 TC-II 3750' Surface 3750' / 3750' 8-1/2" 7" Drl Liner 26# L-80 BTC-M 4824' 3750' / 3750' 8574' / 8279' 6-1 /8" 4-1 /2" Solid Liner 12.6# 13Cr VamTop 2712' 8424' / 8158' 11136' / 8950' Tubin 4-1/2" 12.6# 13Cr VamTo 8424' Surface 8424' / 8158' Cementing Program Casin Strin 7", 26#, L-80, BTC-M Intermediate Liner Lead slurry: 4425' of 8-1/2" x 7" annulus with 40% excess. Slurry Design Basis: Tail slurry: 500' of 8-1/2" x 7" annulus with 40% excess, plus 80' of 7", 26# shoe track. Pre-Flush TBD Fl id S /V l S acer TBD ~ ~/~ u s equence o ume: Lead Slur 140 bbl / 786 ft / sx Class `G', 12.5 ; tiA'6~ft /sk. Tail Slur 19 bbl / 106 ft / 91 sx Class `G', 15.8 ; 1.16 ft /sk. Casin Strin 4-1/2", 12.6#, L-80, Solid Production Liner Lead slurry: None planned. Slurry Design Basis: Tail slurry: 2561' of 6-1/8" x 4-1/2" annulus with 40% excess, plus ~80' of 4- 1/2" shoe track, lus 150' of 7" x 4-1/2" liner la annulus. Pre-Flush TBD Fl id S /V l S acer TBD u s equence o ume: Lead Slur None tanned. Tail Slur 69 bbl / 387ft / 334 sx Class `G', 15.8 ; 1.16 ft /sk. 05-34A Sidetrack Page 3 Formation Integrity Testing Test Test Point Test Type Test pressure Beneath 7-518" Shoe 20' be and KOP FIT 11.5 EMW 7" Shoe 20' be and shoe FIT 10.0 EMW Well Control Well control equipment consisting of S,000psi working pressure pipe rams, blind/shear rams, and an annular preventer will be installed and is capable of handling maximum potential surface pressures. BOPE and drilling fluid system schematics are currently on file with the AOGCC. Well Interval: 8 %" intermediate interval Maximum antici ated BHP: 3,198psi at 8280' TVD Maximum surface ressure: 2,370pS1 (based upon BHP and a full column of gas from TD @ 0.10 psi/ft) Calculated kick tolerance: 25 bbls with 11.5 p EMW FIT Planned ROPE test pressure: 250psi low / 3,500psi high - 7 day test cycle until a window is milled in 9- 5/8" casin . Once a window is milled a 14 da test c cle can commence. Well Interval: 6-1/8" production liner section Maximum antici ated BHP: 3585psi at 8809' TVD Maximum surface ressure: 2704pS1 (based upon BHP and a full column of gas from TD @ 0.10 psi/ft) Calculated kick tolerance: Infinite with 10.0 ppg EMW FIT Planned BOPE test pressure: 250psi low / 3500psi high Planned com letion fluid: 8.8 p seawater / 7.1 pp Diesel Disposal Annular In'ection: No annular injection in this well. Cuttings Handling: Cuttings generated from drilling operations are to be hauled to the Grind and Inject station at DS-04. An metal cuttin s should be sent to the North Slo a Borou h. Fluid Handling: All drilling and completion fluids and other Class II wastes are to be hauled to DS-04 j for in ection. All Class I wastes are to be hauled to Pad 3 for dis osal. 05-34A Sidetrack Page 4 Geologic Prognosis LJ Est. Formation To s Uncertain Commercial Hydrocarbon Beari Est. Pore Press. Est. Pore Press. Fonttraimt (TUAss) (feet) (Yes/No) (Psi) (ppg 8M~ NOTE: All formation tops are re~uired7rom 1000' above proposed ICOP to TD for sidetracks _._ NOTE: All tormation to s are re sired from surface to TD for all new wells Base Permafrost -1920 S4'2 -3769 S4'1 -4154 UG-{ -4713 ROP -5100 UG3 -4851 UGl -5440 ~4'S2 -6076 R'Sl -6291 CbL3 -6522 CNL' -6976 C'RIl -7665 THRZ -7987 BHRZ;'Tb-UP -8158 TJB=rLG'U -8]75 TJA -8185 T5GR -8278 TSHU -8319 TSAD -8380 TC'GL -8529 BCGL -8596 ^_3SB -8668 '2TS -8711 21TS -8758 TZ1B -8809 20' 3583 TDF -8853 20' BS~D -8879 20' 05-34A Sidetrack Page 5 • Fault Prognosis Fault Details - ATo Faults ei erted SSTVD Throw Formation Where Encounter Fault MD Intersect Intersect Est. Throw Direction Uncertainty s The proposed 05-34A well lies in a high risk province of the field far lost arculation at faults as dac~xnented by the YJL~ID teen. Sixteen loss arculation events were encountered in the Cretaceous and Sa~erochut in 9 of the surrourx5ng 32 wells (~%J, as detailed below. The largest losses associated oath Faults [05-1`'i, 05-%A and 05-23) are in the Ivfd-field graben. The planned well bore is not expected to cross any faults in the shallow section or in the lateral. It passes close (400 R) to a small faa.dt in the Cretaceous at about 5600 R MD. Risk of loss circulation For the proposed 05-34A well is thus low [no costs indudedJ. The well cannot be extended due to the presence of a Fault 70 Feet beyarid the planned TD aril another fault just to die east near the planned TD. Paygon lines are har~ines to the south, due to these faults and to the west to maintain standoff to 05-33A perforations. Loss Circulation Ewents Well Type Loss (bbl] MD SSTVD Formation Fault? 05-04 Rig ~0 9472 -~73 Zone 312 No 05-12 Rig 95 9368 -8987 Below Bsad No (cemnting] 05-15 Rig 125 9157 -$14$ Kingak Yes 05-15 Rig 475 9442 -8387 Zone 4 Yes 05.15 Ftig 40 9660 -8571 Zone 2 No ~-% Rig 5 9800 -~90 Zone 1 Yes (tripping) 05-15A Rig 650D 9273 -8258 Sag River Yes 05-20 Ftig 75 $635 -$394 Shublik Yes[casingJ 05-23 Rig 200 6380 -6245 West Sak No 05-23 Rig 40D 6973 -6780 Colville No 05-23 FGg 275 $71$ -8363 Sag River Yes 05-23 Rig 4 9342 -8885 Below Bsad Yes (triPPing) 05-23 Rig 70 9402 -8931 Below Bsad Yes(cemntng) 05-31A Coil 10 9865 -8806 Zone 1 No 05-36 Rig 150 9$42 -$286 Kingak No 05-41 Rig 120 10040 -8980 Zone 1 Yes Distance to Fault Coordinates for Mapping X Y TVDSS plan. ft Throw Fault #1 First Point 697240 5949335 -5600 470' 15' SE Fault #1 Second Point 697120 5949130 -56~ 430' 15' SE Fault #1 Third Point 697005 5948940 -~~ 500' 15' SE Fault #2 First Pant 695150 5948T20 -8~0 175' 5' E Fault #2 Second Point 695230 5948000 -8~0 120' 5' E Fault #2 Third Pant 695440 5947615 -8~0 475' S' E Fault #3 First Point 695400 5948 -8~0 75' 5' N F~alt #3 Second Point 695750 5948965 -~ 445' 5' N Fault #4 First Point Fault # 4 Second Pant Fault #4 Third Pant Fault #5 First Point Fault #5 Secmid Pant Fault #6 First Point Fault #6 Second Point 05-34A Sidetrack Page 6 Pre-Riq Operations: 1 S RIH and drift the tbg to tag TOC. POOH. 2 E RU E-line and RIH. Jet cut the 4-1/2" tbg in a middle of a joint at --4,500' MD. CMIT T X IA to 3,500psi for 30 minutes. Pressure test OA to 2,000 psi. Displace the well to 3 F clean seawater by circulating down the tubing through the tubing cut. Continue to circulate until clean seawater returns to surface. Freeze protect to _2,200' MD with diesel. Bleed casing and annulus ressures to zero. 4 W PPPOT-T and PPPOT-IC. Function all lock down screws, repair or replace as needed. Set a BPV in the tubing hanger. Test to 1,000 psi from IA. Secure the well. Remove the well 5 O house, level the pad as necessary. Please provide total well preparation cost on the handover form. Riq Operations: 1. MIRU Nabors rig 7ES. 2. Pull BPV. Circulate out diesel freeze protection and displace the well to seawater (~8.6ppg). 3. Set TWC. Nipple down tree and adaptor. Nipple up and test BOP to 3,500 psi. Pull TWC. 4. Back out lockdown screws. Pull hanger. 5. Pull 4-1/2" x 3-1/2" tubing from the pre-rig cut at -4,500' MD. 6. PU 4" drill pipe. MU/PU scraper assembly. Picking up DP, RIH to the 4-1/2" tubing stub and displace well to 10.1 ppg fresh water LSND milling fluid. 7. RU Slickline. MU a 7-5/8" CIBP on DP, RIH and set at 3,766' MD, test to 4000 psi. 8. RU E-line. RIH with USIT to confirm no cement behind 7-5/8" and collar location for cut. Run from top of tubing cut to surface for tie-in log. 9. MU Baker 7 8/e' mechanical cutter, RIH on DP and cut the 7-5/8" ~20' up inside the 10-3/4" shoe (-3,486'). Circulate through cut to confirm cut (and if needed with surfactant wash to clean annulus). POOH. 10. Remove wear bushing, C/O to 7-5/a' rams, and test. 11. MU spear and pull 7 5/6" csg from the cut point and lay it down. 12. Change to 3-1/2" x 6" variable rams and test. Install wear bushing. 13. MU mill on DP. RIH and mill down ~70' off the top of the 7-5/8" casing in order to sidetrack. Depending on the scenario encountered, execute one of the following two options: SCENARIO A -After milling/exiting the 10-3/4" casing shoe. the mill assembly sidetracks before milling down the entire -70' off the top of the 7-5/8" casing. Depending on depth of kick off -discuss possibility of pumping cement to act as a kick off plug. Otherwise, run string mill over 7-5/8" surface in order to clean up and avoid creating a key seat. Drill out approximately 20' of new formation (or whatever amount is deemed far enough away from the 7- 5/8" casing so as not to drill into it with the next drilling BHA), pull back up into the shoe and conduct a FIT to 11.5ppg EMW. Discuss with Baker Fishing and possibly conduct a trip to remove excess junk and dress surface of milled surface with Baker Fishing. POOH for 8-1 /2" drilling BHA assembly. ~~~~~ SCENARIO B -Mill down -70' off the top of the 7-5/8" casing without sidetracking. ?~'Q POOH. RU SLB Cementers and set cement plug on top of CIBP to 100' up into 10-3/4" csg. POOH. MU milltooth bit on 1.5 degree bent motor assembly. RIH and drill up 100' cement inside the 10-3/4" casing and kickoff/sidetrack immediately upon exiting the 10-3/4" casing shoe. Drill out approximately 20' of new formation, pull back up into the shoe and conduct a FIT to 11.5ppg EMW. Continue drilling intermediate hole section per directional plan until milltooth dulls. POOH for 8-1/2" drilling BHA assembl . 14. M/U 8-1/2" Dir/GR/RES/PWD BHA assembly on 1.5 deg bend motor with a Hycalog DSX-619 PDC bit on 4" DP with 23 joints of HWDP. 15. Ensure drilling fluid is 10.1 ppg for Cretaceous produced water injection over-pressure at 5,562' TVD when drilling intermediate hole per the Mud Program. This MW should also suffice for the ~~~ ~ HRZ and Kingak shales per their respective polar plots (with the addition of other products per the Mud Program). i ~p~~Ctl 16. RIH and drill ahead to TD at -8,574' per directional plan to the 7" casing point. 05-34A Sidetrack Page 7 17. Circulate the well bore clean. Short trip, circulate the well bore. POOH, L/D assembly. 18. Change out to 7" rams and test. 19. RU / MU /RIH 7" long string to TD. Circulate and condition hole for cementing. 20. Cement the 7" intermediate casing through the 8-1/2" hole from TD back up above cretaceous zone. TOC no deeper than 3,750' and preferably no shallower than 3,650' in order to preserve future sidetrack capabilities. 21. Land 7" intermediate casing on mandrel hanger and install new 7" packoffs. 22. Change to 3-1/2" x 6" variable rams and test. 23. MU clean-out assembly. RIH to HES cementer and test casing to 3,500 psi. 24. Drill out of HES cementer and test casing to 3,500 psi. 25. RIH to 7" liner landing collar. Drill out of the cement and float equipment to shoe. Test casing to 3,500 psi, record the test. g~.s~~ ~~~ ~- ,Q~ ~ ~r~ ~carr~ 26. Displace to 8.5ppg Flo Pro drilling fluid per Mud program. ,~ 27. POOH for 6-1/8" production hole BHA. $2.~ ~t"~b-~~ 28. MU 6-1/8" BHA with DIR/GR/RES on a 1.83 degree bend motor with Hughes MX-18DX insert bit on 4" DP for the build section. 29. RIH and drill out of the 7" shoe plus 20' of new formation. Pull up into the shoe and conduct FIT to 10.0 ppg mud EMW. 30. Drill production hole. Note: The length of the 12 degree doglegs in the rocky chert build section may result in a trip for another insert bit (Planned and included in AFE). Because the tangent section is so short it is possible that the well may be TD'd (11,136' MD) with this second insert bit versus tripping again for a PDC bit and At-Inclination-Motor (AIM) assembly. Regardless, include Neu-Den tools on 2"d Production hole assembly for MAD passing build section before drilling the horizontal section. 31. CBU, Short trip, circulate, and condition the hole for running the 4-1/2" production liner. POOH, L/D excess drill pipe. Clear the floor of unnecessary equipment. 32. Run and cement a 4-'/2", 12.6#, L-80 IBT-M solid liner. Ensure that there is 150' of overlap from the 7" shoe. Set liner hanger and liner top packer. Displace well to clean seawater above the liner top. 33. RU SLB and RIH w/ TBD' 2'/8" 2906 Powerjet guns set @TBD SPF. Tag PBTD. 34. Put guns on depth and fire. POOH and verify all shots fired. 35. R/U, M/U TBD length (8,425') of 4-1/2" 13CR, Vam Top completion tubing. 36. RIH, space, and land the completion tubing into the 4-1 /2" liner top, RILDS. 37. Reverse circulate to seawater and corrosion inhibitor. 38. Drop ball and rod, set packer. 39. Test tubing and annulus separately to 4,000 psi each, record the test. 40. Install and test TWC. 41. Nipple down BOP. 42. NU tree and adaptor flange, test tree to 5,000 psi. Pull TWC. 43. Reverse in diesel freeze protect to 2,200' U-tube. Install BPV. 44. Secure well. Release rig. Post-Rig Operations: 1 O Install wellhouse and flowlines. S-riser modifications may be required. 2 S MIRU slick line. Pull the ball and rod / RHC plug from `XN' nipple. Install gas lift valves. 05-34A Sidetrack Page 8 05-34A Potential Drilling Hazards (Post on Rig) • Pre job HAZOP's and Safety meetings are recommended when there is a clear change in work scope. If at any time things don't feel or look right, STOP the job and discuss the situation before making the next move. • Flash Points o Dead Crude= <40degF o Methanol (neat)= 52degF o Diesel=100degF ~~ • Hydrogen Sulfide ~~~~~~ ~'~ ~~~ o DS i not designated as an H2S site. Regardless Standard O eratin Procedures for H2S recautions should P 9 p still be followed at all times. • Bottom Hole Pressure 0 3585 psi @ 8809' TVD • Maximum anticipated wellhead pressure: 0 2704 psi w/full column of gas • Potential for loss circulation o Low • No Close Approach issues 05-34A Sidetrack Page 9 TREE _ WELLHEAD = ACTUATOR = KB. ELEV = 73' BF. ELEV = ? KOP = 5500' Max Argyle = 54 ~ 10050' Datum MD = 9848' Datum ND = 8800' SS 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" ~-1 3076' TOP OF 3-1/2" TBG 3016' 10-3/4" CSG, 45.5#, J-55, ID = 9.953" 3506' Minimum ID = 2.25" @ 9963' 2-7/8" OTIS XN NIPPLE CALCULATED CEMENT TOP (ABOVE RETAINER) 8093' WOT CEMENT RETAINER (08/10/07) 8300' 3-1/2" TBG, 9.3#, L-80, .0087 bpf, ID = 2.992" 8427' CAMERON 4-1/8" --- BAKERnC 0 5 -34 Current TUBII~ PUNCH (o8/os/o7) ~-~ 8600' - 8610' 3-1/2" TBG, 9.2#, 13-C R, .0087 bpf, ID = 2.992" I--i 8854' 2241' ~-14-1/2" OTIS DBESVLN N~, ID= 3.813" 3016' 4-1/2" X 3-1/2" XO, ID = 2.99" r~A S LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 3217 3216 1 MMG-2 RK 2 5262 5260 5 MMG-2 RK 3 6615 6538 29 MMG-2 RK 4 7432 7176 44 MMG-2 RK 5 8059 7624 45 MMG-2 RK 6 8372 7847 44 MMG-2 RK 8481' -jMMG-5-LTS CHEM MANDREL, RK LATCH 8509' 3-1/2" OTIS X NIP, ~ = 2.813" 8560' 3-1/2"X4-1/2"XO,ID=2.99" 8562' 7-5/8" X 4-1/2" BKR S-3 PKR, ID = 3.805" 8574' 4-1 /2" X 3-1 /2" XO, ID = 2.99" PRODUCTION MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 7 8 8634 8793 8036 8151 43 44 MMGM5 MMGM5 RK RK 8854' I~ 3-1 /2" X 2-7/8" XO, ID = 2.44" ITOP OF 5-1/2" LNR I $$$Q' 7-5/8" CSG, 29.7#, L-80, ID = 6.875" 9179' 9780' -~ WOT CBP (08/09/07) I 9900' I--(FISH- 1-11 /16" ~P PUSHED TO 9900' PERFORATION SUMMARY ((08/09/07) I REF LOG: BRCS ON 10/18/91 9925' 2-7/8" BLAST RINGS (21') ANGLEATTOPPERF: 54 (c~ 9930' Note: Refer to Production DB for historical perfi data 9J47' 2-318" X 3-1/2" XO, b = 2.44" SQE SPF INTERVAL Opn/Sqz DATE 2-1/8" 4 9930 - 9934 C 10/23/91 9951' 5-1/2" X 3-1/2" BKR S-3 PKR, ID = 2.813" 2-1/8" 4 9968 - 10008 C 10/23/91 9956' 3-v2° x 2-7/8° xo, ID = 2.aa° 9963' 2-7/8" OTIS XN N~, ~ = 2.25" 2-7/8" TBG, 6.4#, 13-CR, .0058 bpf, ID = 2.441" ~ 9968' PBTD 10076' 5-112" LNR, 17#, 13-CR-80, .0232 bpf, ID = 4.892" 10161' ~1 10163' 9966' ~2-7/8" TUBING TAL 9960' ELMD TT LOGGED 01/26/93 UNKNOWN BP RUBBER LEFT IN HOLE (01/11/06) DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNfI" 10/25/91 ORIGINAL COMPLETION 03/08/06 RLMITLH IBP SET WELL: X05-34 03/03/92 LAST WORKOVER 03/10/06 TWS/PAG IBP-HYD RT/DISCONNECT LEFT PERMR No: 1911210 06/11/03 CMO/TLP MAX ANGLE AND KB ELEV 08/09/07 MCZ/PJC PUSH IBP - 9900'/ SET 2-7/85" C B API No: 50-029-22217-00 08/19/03 CMOlfLP DATUM MD CORRECTION 08/16/07 MCZ/PJC TBG PUNCHI CEMENT (08/11/07) SEC 32, T11 N, R15E, 2589.28' FEL & 1627.08' FNL 01/07/06 DFRlPJC FISH (IBP) ~ 8564' 02/19/06 KSB/PAG PULL ~P/ FISH TO BTM (1/11/06) BP Exploration (Alaska) TREE = CAMERON 41/8" 05-34A Proposed SRFETY NOTES: ""'CHROME TBG & LNR•"" HYD RT & DISCONNECT ON TOP OF IBP (03/10!06) WELLHEAD = CMJ ACTUATOR = BAKER C KB. ELEV = 73' BF. ELEV = ? KOP = 3550' Max Angle = TBD TBD' Datum MD = 9848' Datum ND = 8800' SS Minimum ID =TBD" @TBD' TBD" XN NIPPLE 70-314" CSG, 45.5#, J-55, ID = 9.953" -3550' - KOP 7-5/8" CASING CUT - -3756' CIBP - -3766' TUBING CUT - -4500' CALCULATED 7-5/8" OA TOC - -5000' CALCULATED CEMENT TOP (ABOVE RETAINER) 8093' WOT CEMENT RETA WER (08/10/07) 8300' 3-1/2" TBG, 9.3#, L-80, .0087 bpf, ID = 2.992" 8427' TUBING PUNCH (08/09/07) 8600' - 8610' TOP OF 5-1/2" LNR 8880' CEMENT KICK OFF PLUG ~ 8,445' - 4-1/2" TBG, 12.6# 13CR VAMTOP ~ 8,382' - 4-1/2" X Nipple (3.813" ID) 8,392' - 7" X 4-1/2" BKR Packer 8,419' - 4-1/2" X Nipple (3.813" ID) 8,439' 4-1/2" XN nipple (3.725" ID) 8,446' 7° X 4-1/2" BKR PKR/HGR 8,449' - 4-1/2° WLEG 8,575' - 7" 26# L-80 BTC-M (PREM I THREAD FM TOC TO SURFACE) 7-5/8" CSG, 29.7#, L-80, ID = 6.875" I-1 9179' 11,136' - 4-1 /2" 12.6# L-80 IBT-M SOLID, PERFORATED LINER GAS LIFT MANDRELS ST MD ND DEV NPE VLV LATCH PORT DATE 1 2 2-718" TBG, 6.4#, 13-CR, .0058 bpf, ~ = 2.441" ~~ 9968' I PBTD I 10163' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 10/25/91 ORIGINAL COMPLETION 03/08/06 RLM/iLH IBP SET WELL: 05-34A 03/03/92 LAST WORKOVER 03/10/06 TWS/PAG IBP-HYD RT/DISCONNECT LEFT PERMIT No: 1911210 06/11/03 CMO/TLP MAXANGLE AND KB ELEV 08/09/07 MCZ/PJC PUSH IBP - 9900'/ SET 2-7/85" C B API No: 50-029-22217-01 08/19/03 CMO/TLP DATUM MD CORRECTION 08/16/07 MCZ/PJC TBG PUNCH/ CEMENT (08/11/07) SEC 32, T11N, R15E, 2589.28' FEL & 1627.08' FNL 01/07/06 DFR/PJC FISH (IBP) @ 8564' 09/12/07 JN PROPOSED ST DRAFT 02/19/06 KSB/PAG PULL IBP/ FISH TO BTM (1/11/06) BP Exploration (Alaska) by DS05-34A (P6) Pro Schlumberger Report Date: 4-Dec-07 Survey 1 DLS Computation Method: Minimum Curvature I Lubinski COent BP Exploration Alaska Vertical Section Azimuth: 300.000° field: Prudhoe Bay Unit - EOA 34 S 0 05 ~ Vertical Sadion Origin: 0 TVD Reference Datum: N 0.000 ft, E 0.000 ft Rotary Table SWdure 1 Slot Well: D - 5 1 - 05-34 ~ ~ ~O TVD Reference Elevntion: 62.80 ft relative to MSL e Pr°~e A Sea Bed 1 Ground Level Elevation: 34.30 ft relative to MSL UWIIAPNt : 500292221701 p Magnntic Declination: 23.547° Survey Name 1 Date: 05-34A (P6) I November 29, 2007 Total Field Strength: 57674.030 nT Tort 1 AHD 1 DDI 1 ERD ratio: 221.527° 13800.48 ft 16.017 / 0.422 Magnetic Dip: 80.927° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: January 15, 2008 Loraton LatiLong: N 70.26484805, W 148.40533237 Magnetic Declination Model: BGGM 2007 Location Grid NIE YIX: N 5949005.160 ftUS, E 697217.650 ftUS North Reference: True North Grid Convergence Angle: +1.50104662° Total Corr Mag North -> True North: +23.547° r:dd Cram Garrnr n QQQQdd1 A Local Coordinates Referenced To: Well Head Comments Measured IncOnation Azimuth Sub-Sea TVD TVD Vertcal NS EW Mag I Grav DLS DireGional Northing Fasting Latitude Longkude Doh Section Tod Face DifRcuhy _ (t _ ___ __ d __ d _~~ -- (t ~.~~ ~~ ft ~.~.. ~.. k ...~.... ft ..~ .. -. k nn nn d nnn rn°• d 100 ft n ww Index n nw flUS ~n AAA An n7 ftUS cn7n7n nC AI 7n 7CAr\ACnn \~/ 1A0 An AOrr\r\~ Tie-In Survey 34kf`J.t3U isu 3Z/.ZU 3420./`,! 34tSC.D`J -3r.UU oo.or o~.co oco.a~m ~.ii c.a~ oa-.av~c..,, va, <, a.av ,. ,.,.~..~~...« .. ,-..,.~..•,.,~..~.. 10-3/4" Csg Pt 3495.80 1.27 326.50 3431.78 3494.58 -36.88 35.68 63.19 325.98M 0.60 2.91 5949042.48 697279.88 N 70.26494552 W 148.40482152 3500.00 1.24 325.98 3435.98 3498.78 -36.80 35.76 63.14 316.86M 0.60 2.92 5949042.56 697279.83 N 70.26494573 W 148.40482193 KOP Crv 4/100 3556.00 0.96 316.86 3491.97 3554.77 -35.81 36.60 62.48 349.07M 0.60 2.94 5949043.38 697279.15 N 70.26494804 W 148.40482727 3600.00 2.49 349.07 3535.95 3598.75 -34.83 37.81 62.05 359.47M 4.00 3.01 5949044.58 697278.68 N 70.26495134 W 148.40483076 3700.00 6.43 359.47 3635.63 3698.43 -30.56 45.54 61.58 6.46R 4.00 3.18 5949052.30 697278.01 N 70.26497248 W 148.40483452 Crv 4/100 3714.40 7.00 0.00 3649.93 3712.73 -29.71 47.23 61.57 80.87E 4.00 3.20 5949053.98 697277.96 N 70.26497707 W 148.40483458 3800.00 8.26 335.78 3734.79 3797.59 -22.11 58.06 59.05 56.85E 4.00 3.33 5949064.74 697275.16 N 70.26500666 W 148.40485499 SV2 3834.60 9.09 328.42 3769.00 3831.80 -17.69 62.65 56.60 49.59E 4.00 3.38 5949069.27 697272.58 N 70.26501922 W 148.40487481 3900.00 10.97 317.90 3833.40 3896.20 -7.22 71.67 49.72 39.22E 4.00 3.48 5949078.11 697265.47 N 70.26504386 W 148.40493042 4000.00 14.29 307.61 3930.98 3993.78 14.08 86.27 33.56 29.17E 4.00 3.61 5949092.28 697248.93 N 70.26508374 W 148.40506109 4100.00 17.89 301.25 4027.05 4089.85 41.68 101.78 10.64 23.06E 4.00 3.75 5949107.18 697225.62 N 70.26512610 W 148.4052463 End Crv 4106.36 18.12 300.93 4033.10 4095.90 43.64 102.79 8.96 --- 4.00 3.75 5949108.15 697223.91 N 70.26512888 W 148.4052599 SV1 4233.57 18.12 300.93 4154.00 4216.80 83.20 123.13 -24.98 -- 0.00 3.84 5949127.59 697189.45 N 70.26518444 W 148.40553435 UG4 4821.74 18.12 300.93 4713.00 4775.80 266.13 217.18 -181.92 --- 0.00 4.11 5949217.48 697030.12 N 70.26544135 W 148.40680306 UG3 4966.95 18.12 300.93 4851.00 4913.80 311.29 240.39 -220.66 -- 0.00 4.16 5949239.67 696990.78 N 70.26550477 W 148.40711627 UG 1 5586.69 18.12 300.93 5440.00 5502.80 504.04 339.48 -386.01 -- 0.00 4.31 5949334.39 696822.90 N 70.26577546 W 148.40845311 WS2 6255.89 18.12 300.93 6076.00 6138.80 712.16 446.48 -564.56 --- 0.00 4.44 5949436.67 696641.62 N 70.26606774 W 148.40989666 WS1 6482.11 18.12 300.93 6291.00 6353.80 782.52 482.65 -624.92 -- 0.00 4.47 5949471.24 696580.34 N 70.26616654 W 148.41038467 CM3 6725.17 18. f 2 300.93 6522.00 6584.80 858.11 521.51 -689.77 -- 0.00 4.51 5949508.39 696514.50 N 70.26627269 W 148.41090899 CM2 7202.86 18.12 300.93 6976.00 7038.80 1006.68 597.89 -817.23 --- 0.00 4.57 5949581.40 696385.09 N 70.26648131 W 148.41193950 CM1 7927.83 18.12 300.93 7665.00 7727.80 1232.15 713.80 -1010.65 --- 0.00 4.65 5949692.20 696188.70 N 70.26679791 W 148.41350346 THRZ 8266.63 18.12 300.93 7987.00 8049.80 1337.52 767.97 -1101.05 --- 0.00 4.68 5949743.98 696096.92 N 70.26694587 W 148.41423439 BHRZ/TKUP 8446.56 18.12 300.93 8158.00 8220.80 1393.48 796.74 -1149.06 --- 0.00 4.70 5949771.48 696048.18 N 70.26702444 W 148.41462255 TJB/ECU 8464.45 18.12 300.93 8175.00 8237.80 1399.04 799.60 -1153.83 -- 0.00 4.70 5949774.21 696043.34 N 70.26703226 W 148.41466114 WeIlDesign Ver SP 2.1 Bid( doc40x_100) 05-34\05-34\Plan 05-34A\05-34A (P6) Generated 12/4/2007 10:40 AM Page 1 of 2 Canmerds Measured InGlnatiar Azimuth Sub•SeaTVD TVD Vertical NS EW Mag 16rav DLS Directional Northing Fasting LatiWde Longkude D~th Section 7odFace Difficulty ft d d ft ft ft ft ft d d 1100 ft Index ftUS ftUS TJA 8474.97 18.12 300.93 8185.00 8247.80 1402.32 801.28 -1156.64 -- 0.00 4.70 5949775.82 696040.49 N 70.26703685 W 148.41468384 TSGR 8572.82 18.12 300.93 8278.00 8340.80 1432.75 816.92 -1182.75 -- 0.00 4.71 5949790.78 696013.98 N 70.26707958 W 148.41489495 7" Csg Pt 8573.87 18.12 300.93 8279.00 8341.80 1433.08 817.09 -1183.03 --- 0.00 4.71 5949790.94 696013.70 N 70.26708004 W 148.41489722 TSHU 8615.96 18.12 300.93 8319.00 8381.80 1446.17 823.82 -1194.26 --- 0.00 4.71 5949797.37 696002.29 N 70.26709842 W 148.41498802 TSAD 8680.15 18.12 300.93 8380.00 8442.80 1466.13 834.08 -1211.38 -- 0.00 4.72 5949807.18 695984.91 N 70.26712645 W 148.41512649 Crv 12!100 8707.82 18.12 300.93 8406.30 8469.10 1474.74 838.51 -1218.76 67.26E 0.00 4.72 5949811.41 695977.41 N 70.26713853 W 148.41518620 8800.00 24.54 275.71 8492.30 8555.10 1506.62 847.81 -1250.21 43.69E 12.00 4.86 5949819.89 695945.74 N 70.26716394 W 148.41544043 End Crv 8830.85 27.33 270.14 8520.05 8582.85 1518.60 848.47 -1263.67 -- 12.00 4.90 5949820.19 695932.26 N 70.26716572 W 148.41554927 TCGL 8840.93 27.33 270.14 8529.00 8591.80 1522.62 848.48 -1268.30 -- 0.00 4.90 5949820.08 695927.64 N 70.26716575 W 148.41558669 BCGL 8916.35 27.33 270.14 8596.00 8658.80 1552.65 848.56 -1302.92 -- 0.00 4.91 5949819.26 695893.02 N 70.26716597 W 148.41586664 Crv 12/100 8920.85 27.33 270.14 8600.00 8662.80 1554.44 848.57 -1304.99 38.80E 0.00 4.91 5949819.21 695890.96 N 70.26716598 W 148.4158833 9000.00 35.20 259.81 8667.65 8730.45 1587.70 844.57 -1345.70 29.94E 12.00 5.00 5949814.14 695850.36 N 70.26715503 W 148.4162125 23S8 9000.43 35.24 259.76 8668.00 8730.80 1587.89 844.52 -1345.95 29.91E 12.00 5.00 5949814.09 695850.12 N 70.26715491 W 148.41621448 22TS 9055.12 41.04 254.78 8711.00 8773.80 1612.60 837.00 -1378.83 25.99E 12.00 5.06 5949805.71 695817.44 N 70.26713433 W 148.41648037 9100.00 45.94 251.50 8743.56 8806.36 1633.69 828.01 -1408.37 23.60E 12.00 5.10 5949795.95 695788.16 N 70.26710975 W 148.41671915 21TS 9121.22 48.28 250.14 8758.00 8820.80 1643.85 822.90 -1423.05 22.67E 12.00 5.12 5949790.45 695773.62 N70.26709578 W 148.41683784 9200.00 57.09 245.81 8805.73 8868.53 1682.23 799.30 -1481.00 20.04E 12.00 5.19 5949765.35 695716.31 N 70.26703130 W 148.41730630 TZ18 9206.08 57.77 245.52 8809.00 8871.80 1685.22 797.19 -1485.67 19.88E 12.00 5.20 5949763.12 695711.70 N 70.26702553 W 148.41734405 9300.00 68.44 241.42 8851.44 8914.24 1731.21 759.71 -1560.41 18.02E 12.00 5.28 5949723.69 695637.97 N 70.26692309 W 148.41794830 9400.00 79.89 237.67 8878.69 8941.49 1778.48 710.96 -1643.14 16.99E 12.00 5.35 5949672.80 695556.55 N 70.26678987 W 148.41861708 Crv 12/100 9470.64 88.00 235.20 8886.14 8948.94 1809.72 672.15 -1701.62 48.94E 12.00 5.41 5949632.47 695499.11 N 70.26668379 W 148.41908979 End Crv 9477.29 88.52 234.60 8886.34 8949.14 1812.51 668.33 -1707.05 --- 12.00 5.41 5949628.51 695493.78 N 70.26667336 W 148.41913370 Crv 12/100 9542.93 88.52 234.60 8888.04 8950.84 1839.83 630.32 -1760.54 91.22E 0.00 5.43 5949589.11 695441.31 N 70.26656947 W 148.41956609 9600.00 88.39 227.75 8889.57 8952.37 1860.42 594.57 -1804.95 91.03E 12.00 5.47 5949552.21 695397.85 N 70.26647179 W 148.41992513 9700.00 88.21 215.75 8892.55 8955.35 1880.74 520.13 -1871.39 90.67E 12.00 5.53 5949476.07 695333.39 N 70.26626838 W 148.42046209 9800.00 88.11 203.74 8895.78 8958.58 1880.29 433.51 -1920.88 90.29E 12.00 5.59 5949388.18 695286.18 N 70.26603170 W 148.42086206 9900.00 88.09 191.73 8899.10 8961.90 1859.10 338.49 -1951.27 89.89E 12.00 5.65 5949292.40 695258.29 N 70.26577209 W 148.42110756 Tgt 2 9926.93 88.10 188.50 8900.00 8962.80 1849.95 312.00 -1956.00 91.38E 12.00 5.66 5949265.80 695254.26 N 70.26569972 W 148.42114571 10000 00 91 87 179.73 8902.55 8965.35 1818.09 239.23 -1961.23 91.08E 12.00 5.70 5949192.92 695250.94 N 70.26550091 W 148.42118788 . 10100.00 . 87.73 167.72 8906.36 8969.16 1759.08 140.08 -1950.33 90.62E 12.00 5.75 5949094.10 695264.43 N 70.26523006 W 148.4210995 10200.00 87.65 155.71 8910.40 8973.20 1684.63 45.38 -1919.04 90.13E 12.00 5.80 5949000.26 695298.19 N 70.26497137 W 148.42084637 End Crv 10202.35 87.65 155.43 8910.50 8973.30 1682.72 43.24 -1918.07 --- 12.00 5.80 5948998.14 695299.22 N 70.26496552 W 148.42083851 Crv 12/100 10226.14 87.65 155.43 8911.47 8974.27 1663.36 21.63 -1908.19 88.88R 0.00 5.80 5948976.80 695309.66 N 70.26490649 W 148.42075858 Tgt 3 10264.21 87.75 160.00 8913.00 8975.80 1633.27 -13.56 -1893.76 90.96R 12.00 5.82 5948942.00 695325.00 N 70.26481035 W 148.42064191 10300.00 87.68 164.30 8914.43 8977.23 1606.76 -47.59 -1882.80 90.79R 12.00 5.84 5948908.27 695336.85 N 70.26471739 W 148.42055324 10400.00 87.57 176.31 8918.58 8981.38 1543.06 -145.90 -1866.01 90.29R 12.00 5.88 5948810.44 695356.21 N 70.26444883 W 148.42041723 End Crv 10468.58 87.55 184.54 8921.51 8984.31 1509.27 -214.35 -1866.51 --- 12.00 5.91 5948742.00 695357.50 N 70.26426183 W 148.42042120 TO / 4-1/2" Lnr 11135.85 87.55 184.54 8950.00 9012.80 1222.73 -878.92 -1919.33 --- 0.00 6.02 5948076.32 695322.11 N 70.26244623 W 148.42084680 Lestal Description: Northing (Y) [ftUS] Fasting (X) [ftUS] Surface : 2839 FSL 5132 FEL S32 T11N R15E UM 5949005.16 697217.65 TD / BHL : 1959 FSL 1774 FEL S31 T11 N R15E UM 5948076.32 695322.11 WeIlDesign Ver SP 2.1 Bld( doc40x_100) 05-34\05-34\Plan 05-34A\05-34A (P6) Generated 12/4/2007 10:40 AM Page 2 of 2 ' by Schlumberger WELL FIELD STRUCTURE DS05-34A (P6) Prudhoe Bay Unit - EOA DS-05 Megnelrc Pammelers ace Lxa~ion NAD3]AlasMa 8lale Planes. Zone 04. U5 Feel iscelWneous Motlel. BGGM 200] Dip: 80.93]° Date' January t6. 2008 LaL N]0165J.453 Norl6'n0'. 6949005.161tU9 Geid COnv: X150104682° O6Jd TVD ReI: Rotary Tabb ~6280flabova MGL~ Mag Dec: •3J.50]° FS: 5]6]00 nT W1482d 19.19] EaNing: 69I3t]6611UG Swla Fxl: 0.99994418<3 0634A (Pfi) Sny Data: November 29, 3007 -800 -400 0 400 800 o c ~AEdB6) o 534: i° a o _ _ o ° o - - - - - - ° - - - - - - - - 7" Csg Pt - - k - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8400 :...:...: ~0..-..-..:.. ..'..' ..:........:...:...:...:...:...:...:..:...:..-..-......-.......... ............................. ..... 8400 0 crvlznoo - 3AO - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~_ 534 ~ Tie-In Survey O End Crv tOJl4" Csg PI ~ _ _ C~L _ _ _ _ _ _ _ C KOP Crv 4/100 - Crv 12/100 - CAL ~ ~ - - - - - - ~ - ~ - ~ - ~ ~ ~ - ~ - ~ ~ ~ ~ ~ ~ - ~ ~ - Crv4/100 ~ _ 3~B _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - - Jz - - - - - • v 8800 7S'.. " . " .................. "..; ...:...:..._..._...- - - .'.~~..._..._.......- - - - - - - - - - -.. ";..:...:.. 8800 _ ;_ - - - 3TS _ _ _ _ _ ;_ 4000 _.... , .._ ..................... ~ - - - q - - - - - - '- - - - - - - - - - - - - - - - Entl Crv ~ - V7 - - - - - 5 4A (P6) 534 Crv 121100 Tgi y End Crv End Crv Crv 12/100 .~ Tgt 3 End Crv TD 14-11P" Lnr Crv'121100 9200 9200 4800 '• • • <•~~~'~°" "°~'~~• -800 -4D0 0 400 800 - - - ~ - Vertical Section (ft) Azim = 180°, Scale = 1(in):400(ft Origin = 0 N/-S, 0 E/-V _ _ _ _ _ _ G1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 5600 ? ..........................°............... ..................................................... _............... 5600 0 0 c - - - - - - - - - - - - - - - - - - - - - - - II _ _ _' _ _ _ _ _ _ r _ _ _ _ _ _ _ _ a> 6400 ........,. ................. t.....: ................,. - - -..........'. 6400 m U (n _ _ _ _ _ _ _ M3 - _ _ _ _ _ 4 _ _ _ _ _ _ _ _ y _ _ _ _ _ _ _ _ D _ _ _ _ _ _ _ _ M2 - _ _ j _ _ _ _ _ _ _ :. _ _ _ _ _ _ _ _ _ - _ _ 7200 ... <..... ° .............................i.. ................ °............(.............-....................i...................................> ....................... 7200 - _ - _ - - x,11 - - - - - - - - - - - - - - - 8 00 0 ..:....................................................... ...........:. ........................................................................ °............... 8 00 0 _ _ _ _ _ _ _ _ _ RZ ,.b _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7_ Csg Pt . _ SAb _ _ _ _ _ y _ _ _ _ _ Crv 12/100 _ _ _ _ _ _ _ _ _ _ End.Crv _ _ CGL _ _ _ _ _ _ _ - CG_L .. f.,. '.. '.. ' . ".......... f..... 7. ...~ T.... '..' 8800 _ E..;.. _..._ .. ....:.. ... ..... _ _ _ _ _ _ _ _ _ _ ••;••c .:. _ _ _ _ _ _ _ _ _ _ _ 88DD _ _:_ _ _ _ _ _ _ _ _: _ _ _ _ - _ _ _ _ y _ _ _ _ _ _ _ - _ _ _ TD l; 4-112" Lnr ~9 • 0 0534A (P6) 0 800 1600 2400 3200 Vertical Section (ft) Azim = 300°, Scale = 1(in):800(ft) Origin = 0 N/-S, 0 E/-V by Schlumberger ,k~ VBELL FIELD STRUCTURE DS05-34A (P6) Prudhoe Bay Unit - EOA DS-05 Ma9MCPelarrebm 8u~eca Lmalien NAD$]glaska 8lele PWre¢2ore Oa, US Feel Miscellaneous Motlel: BGC1A 300] Dlp: BOAS]' Dale: January 15. 3908 Lal: N]010030.53 Nalfln9'. 5919000.10 flU8 Gre DOnY'. ~1.5910a602' 8b1: 9030 TVD Ref: Rdary TaLb (62.009 a0ove M8L1 Mag Dec: X33.01]' F8'. 5I6]10nT Lon: W11B 2119.19] Ea9vg: 69]21] 6511U8 Scale Fa4: 09999111013 Plan'. 05318 1P01 Brvy Dale: Novem0er 39, 300] -2800 -2400 -2000 -1600 -1200 -800 -400 0 800 400 A A n Z °o 0 c u m m U V ~ -400 V -800 ;....... ................. 800 :. ....................... 400 OS-34A Ftt 1 5600 End Crv crv atoo KOP Crv 100 ~o-s~4° roans s9 P, .y .. .......... _.... 0 ' .. ................... ~ .....................i...-.....-.......................-.i-.-....-................ 063?IA FI[ 3 8950ss OS34A Ftt 2 8950ss TD / 4-712" Lnr 0634A (PB) 800 300 -2800 -2400 -2000 -1600 -1200 -800 -400 0 c« W Scale = 1(in):400(ft) E »> Field: Prudhoe Bav V Site: PH DS 0.5 Nell: OS-34 Wellpath: Plan OS-34A • Nr+li-I I~.~al~ l i`UUOin~ 300 Ima -}cOp -}UW -3300 -'_1100 -13ut1 -1000 -300 0 A - h - 1 DRILL 517E 5 -w- ~ _ SEC. 3t f SEC. 32 T1tN, RISE j at ' r• a• •• i• ,. I l SEC. 31 SE 6~ SEC. 32 SFC. 5 ~_ LOCATED WITHIN PROTRACTED SEC. 32. T11h, RISE. UViAT MERIDIAN, AUSKA. ALL A.S.P. PLANT GE? ~ETiC CELLAR LOCATION N0. COORDS. COOP.GS. PG_:':O'. ELEv IN SECTION 5,948,771.48 N 1559.76 145~a't7.738' 2604' FSL 33 697,273.89 E 215.12 7G't5'SLtat' }a t 198' FWL 5,949,005.16 N tE0.t3 t4E'.a't9.t96" 2441' FNL 34 697.217.65 E 2t:.G:.~ 7G't:'63.~53' 34.3 148' FWi 5,949,t2i.63 N 19t9.bs ta~•_4'?9.9?7" 2323' FNL 35 697,189.b2 E 215.t< 70'.5'54605" 34.2 124' FWL 5.944,238.01 N 2039.63 t4b'~4'2~.649" 2206' FNL 36 697,161.63 E 2t<.90 70'~5'S5?57" 34.2 99' FWL p S/18/91 AS-BUILT ~ N^RTH SLOPE TB HITCH r NO. DATE REVISt:!.S DRAwr: CHECK N.T.S. NOTES t. BASIS OF LOCATION PER RECORD AS-BUILTS OF YYELLS /9, /10, /11, /12, /t3 k /14 BY H.V. LOUNSBURY k ASSOC. (4/13/77). 2. COORDINATES SHOWN ARE ALA5h4 STATE PLANE 20NE 4. 3. ELEVATIONS SHOWN ARE AP.CO DATUM (M.L.L.W.). 4. REFERENCE FIELD BOOK: PB 91-13 (P. 62-63,66-69 DATE OF SURVEY: 5/7rQ16/ 1 SURVEYOR'S CERTIFICATE 1 HEREBY CERTIFY THAT 1 AM PRO- PERLY REGISTERED AND LICENSED TO PRACTICE LAND SURVEYING W THE STATE OF ALASKA AND THAT TH1S PLAT REPRESENTS A SURVEY MADE BY ME OR UNDER M.Y DIRECT SUPERVISION AND THAT ALL DIIJEN- S10NS AND OTHER DETAILS ARE CORRECT AS QE,.G4A~/~27~ 1991. ~...-rte.. • •. • .., .. . ....f.•....... ,t~ '.~ Mo. it~i • • •• ••• r ~~1,`;``~` ~ r F. ROBERT BELL & ASSOC. ARCO Alaska Inc.. ~i DRILL SITE 5 CONDUCTOR AS-BUILT WELLS # 33, 34, 35, 36 5-18-91 BARNHART H[TCHCOCK + ti tt. N.T.S. PA7011AA 0000 CEA-1700-037 X201 a 1 ~ 0 LEGEND • EXISTMG WELLS • CONDUCTORS AS-BUILT THIS SURVEY • Oilfield Services, Alaska Schlumberger Drilling & Measurements i Schlumberger 2525 Gambell, Suite 400 Anchorage, AK 99503 Tel (907) 273-1766 Fax (907) 561-8367 Monday, December 17, 2007 Jim Nigh Prudhoe Bay 05-34A (P6) BP Exploration (Alaska) Inc. Nabors 7ES Close Approach Analysis We have examined the potential intersections of subject well with all other potentially conflicting wells, according to the BPA Directional Survey handbook (BPA-D-004) dated 09/99. Method of analysis: 1. A list of wells to be analyzed is created in Compass by performing a global scan with an initial search radius of two hundred feet with an increment of one hundred feet for every one thousand feet of measured depth in the subject well. 2. Wells are analyzed using the Compass Anti-collision module (BP Company setup) with major risk safety factors applied. For problem wells that are plugged and abandoned or that can be shut in, risk-based safety factor may be used, with client notification. 3. All depths are relative to the planned well profile. Survey Prooram: Instrument Type Start Depth End Depth BOSS GYRO 189.80' and 3489.80' and Blind 3489.80' and 3800.00' and MWD + IFR + MS 3800.00' and 11068.24' and Close Aoaroach Analysis results: Under method (2), note. All wells pass flowing rules. All data documenting these procedures is available for inspection at the Drilling & Measurements Directional Planning Center. Close Aaoroach Drillings Aids to be provided: A drilling map and traveling cylinder will be provided. Checked by: Scott DeLapp 12/17/2007 • Anticollision Company: --- - __ BP Amoco _ - Date: 12/17/2007 Time: 10:59:41 Page: 1 Field: Prudhoe Bay Reference Si te: PB DS 05 Co-ordinate(NE) Reference: Well: OS-34, True North Reference Weli: 05-34 Vertical (1'VD) Reference: 05-34A Plan 62.8 Reference Wellpath: Plan 05-34A Db: Oracle GLOBAL SCAN APPLIED: All wellpaths within 200'+ 100/1000 of reference -There are liaeells in thisilRiBiipal Plan & PLANNED PROGRAM i Interpolation Method: MD Interval: 5.00 ft Error Model: ISCWSA Ellipse Depth Range: 3556.00 to 11068.24 ft Scan Method: Trav Cylinder North Maximum Radius: 1303.97 ft Error Surface: Ellipse + Casing ~ Survey Program for Definitive Wellpath Date: 11/29/2007 Validated: No Version: 3 ~ Planned From To Survey Toolcode Tool Name ft ft -~ 189.80 3489.80 Survey #1 BOSS Gyro (189.80-10 BOSS-GYRO Sperry-Sun BOSS gyro multi shot i 3489.80 3800.00 Planned: Plan #5 V1 BLIND Blind d rilling t 3800.00 8510.00 Planned: Plan #5 V1 MWD+IFR +MS MWD +IFR + Multi Station 8510.00 11068.24 Planned: Plan #5 V1 MWD+IFR +MS MWD +IFR + Multi Station Casing Points _. - --- - 11iD 'Il'D Diameter Hole Size Name ft ft in in 3495.80 3494.58 10.750 13.500 10 3/4" ~ 8593.31 8340.80 7.000 8.500 7" ~ 11135.85 0.00 4.500 6.125 _ 4-1/2" ___ 1 Summary -- __ < Offset Wellpath > Reference Offset Ctr-Ctr No-Go Allowable Site Well Wellpath MD MD Distance Area Deviation Warning ft ft ft ft ft PB DS 05 05-04 05-04 V3 3900.00 4175.00 1036.79 104.56 932.24 Pass: Major Risk PB DS 05 05-04A 05-04A V5 3900.00 4170.00 1035.42 104.73 930.69 Pass: Major Risk PB DS 05 05-08 05-08 V5 12555.35 3580.00 570.20 77.62 492.58 Pass: Major Risk PB DS 05 05-09 05-09 V3 12555.75 3580.00 390.52 84.31 306.21 Pass: Major Risk PB DS 05 05-09A 05-09A V1 12555.75 3580.00 390.52 84.31 306.21 Pass: Major Risk PB DS 05 05-10 05-10 V3 3562.85 3565.00 225.99 66.18 159.81 Pass: Major Risk PB DS 05 05-10 05-10A V2 3562.85 3565.00 225.99 66.18 159.81 Pass: Major Risk PB DS 05 05-10 05-10B V1 3562.85 3565.00 225.99 66.18 159.81 Pass: Major Risk PB DS 05 OS-10 OS-106P61 V2 3562.85 3565.00 225.99 66.18 159.81 Pass: Major Risk PB DS OS 05-10 05-10C V9 3562.85 3565.00 225.99 66.00 159.98 Pass: Major Risk PB DS 05 05-11 05-11 V3 3559.04 3580.00 207.38 51.78 155.59 Pass: Major Risk PB DS 05 05-11A OS-11A V1 3559.30 3580.00 205.84 51.78 154.07 Pass: Major Risk PB DS 05 05-12 05-12 V4 12555.39 3560.00 91.72 79.67 12.05 Pass: Major Risk j PB DS 05 05-12 05-12A V1 12555.39 3560.00 91.72 79.67 12.05 Pass: Major Risk PB DS 05 05-12 05-126 V5 12555.39 3560.00 91.72 79.78 11.94 Pass: Major Risk PB DS 05 05-13 05-13 V2 3556.23 3585.00 317.69 82.34 235.35 Pass: Major Risk PB DS 05 05-13 OS-13A V2 3557.55 3580.00 318.29 82.38 235.91 Pass: Major Risk ~ PB DS 05 OS-13 Plan 11, 05-136 V2 Pla 3557.55 3580.00 318.29 82.26 236.03 Pass: Major Risk PB DS 05 05-14 05-14 V1 12554.72 3575.00 420.17 81.56 338.61 Pass: Major Risk PB DS 05 05-14A 05-14A V1 12554.72 3575.00 420.17 81.56 338.61 Pass: Major Risk '! PB DS 05 ~ 05-15 05-15 V2 3557.88 3560.00 532.57 62.78 469.79 Pass: Major Risk , PB DS 05 OS-15A 05-15A V1 3557.06 3560.00 536.18 62.71 473.47 Pass: Major Risk PB DS OS OS-156 05-156 V1 3557.06 3560.00 536.18 62.71 473.47 Pass: Major Risk PB DS 05 05-156PB1 05-15BPB1 V1 3557.06 3560.00 536.18 62.71 473.47 Pass: Major Risk PB DS 05 05-16 OS-16 VS 3559.17 3570.00 649.97 47.53 602.44 Pass: Major Risk ! PB DS 05 05-16 05-16A V1 3559.17 3570.00 649.97 47.66 602.31 Pass: Major Risk ~ PB DS 05 05-16 05-166 V3 3557.61 3565.00 649.64 47.65 602.00 Pass: Major Risk PB DS 05 05-17 05-17 V2 5208.16 5145.00 410.35 64.08 346.27 Pass: Major Risk PB DS 05 OS-17A 05-17A V1 5203.38 5140.00 410.18 64.12 346.06 Pass: Major Risk PB DS 05 05-17B OS-176 V5 5208.16 5145.00 410.35 64.08 346.27 Pass: Major Risk PB DS 05 05-20 05-20 V7 3556.19 3570.00 523.12 48.53 474.60 Pass: Major Risk j PB DS OS 05-20 05-20A V1 3556.19 3570.00 523.12 48.53 474.60 Pass: Major Risk PB DS 05 05-20 05-208 V4 3558.69 3565.00 523.22 48.57 474.65 Pass: Major Risk I PB DS 05 OS-20 05-20P81 V3 3556.19 3570.00 523.12 48.53 474.60 Pass: Major Risk ', PB DS 05 05-22 05-22 V3 3557.68 3570.00 390.72 45.51 345.20 Pass: Major Risk !, PB DS OS 05-22 OS-22A V10 3557.68 3570.00 390.72 45.45 345.27 Pass: Major Risk PB DS 05 I 05-22 05-226 V4 3557.68 3570.00 390.72 45.32 345.40 Pass: Major Risk , PB DS 05 OS-23 05-23 V3 5169.85 5075.00 556.06 65.32 490.74 Pass: Major Risk PB DS 05 05-23 05-23A V5 5169.85 5075.00 556.06 65.32 490.74 Pass: Major Risk PB DS 05 05-25 OS-25 V3 3558.10 3570.00 212.90 61.35 151.55 Pass: Major Risk_~ Anticollision Company: BP Amoco Date: 12/17/2007 Time: 10:59:41 Page: 2 Field: Prudhoe Bay Reference Site: PB DS 05 Co-ordinate(NF.) Reierence: Well: 05-34, True North Reference Well: OS-34 Vertical ('fVll) Reference: 05-34A Plan 62.8 Reference Wellpath: Plan 05-34A Dh: Oracle Summary ___ < Offset Wellpath ~ Reference -- Offset Ctr-Ctr No-Go Allowable Site Wel- Wellpath MD MD Distance Area Deviation Warning ft ft ft ft ft PB DS 05 05-25 05-25A V3 3558.10 3570.00 212.90 61.35 151.55 Pass: Major Risk ~ PB DS 05 05-25 05-256 V5 3558.10 3570.00 212.90 61.35 151.55 Pass: Major Risk , PB DS 05 OS-31 05-31 V1 4748.36 4615.00 599.44 62.35 537.09 Pass: Major Risk PB DS 05 05-31A 05-31A V1 4748.36 4615.00 599.44 62.35 537.09 Pass: Major Risk PB DS 05 05-33 05-33 V2 3556.33 3615.00 445.22 58.59 386.63 Pass: Major Risk I PB DS 05 05-33 05-33A V5 3556.33 3615.00 445.22 58.59 386.63 Pass: Major Risk PB DS 05 PB DS 05 05-34 05-35 05-34 V2 05-35 V2 3559.80 12555.56 3570.00 3615.00 0.01 414.65 13.32 92.07 -13.31 322.58 FAIL: Minor 1/200 Pass: Major Risk PB DS 05 05-35 Plan 05-35A VO Plan: 0 12554.87 3605.00 414.31 91.96 322.35 Pass: Major Risk PB DS 05 05-36 05-36 V4 Out of range PB DS OS 05-36 05-36A V3 Out of range PB DS 05 05-36 05-36AP61 V2 Out of range • a FieldPrudhoe Bay Site PB DS 05 We11:05-34 WellpathPlan OS-34A 313 300 200 100 0 2 100 200 300 313 O Travelling Cylinder Azimuth (TFO+AZI) [deg] vs Centre t ° • Target: OS-34A Poly ~ __. _ ____ Site: PB DS OS _ _ Well: OS_34 __ ____ Drilling Target Conf.: 95% Based on: Planned Program _ Description: _ _ _ Vertical Depth: 8880.00 ft below Mean Sea Level. Map Northing: 5949633.00 ft Local +N/-S: 672.68 ft Map Easting : 695499.00 ft Local +E/-W: -1701.71 R Latitude: 70° 16'00.067N Longitude: 148°25'08.726W Polygon X ft _ Y ft _ Map E ft __ _ Map N ft __ ___ 1 ___ 346.35_ 7.93 __ -X46845.00 594965_Q.OQ __ 2 __ 67 78 _. -314.90 695575.00 _ 5949320.00 _~ -47.67 ___ -1857.49 695500.[Hl _ 594777~Q~ _ 4 -415 67 -1202 59 695115 00 __5948420 00 _ _____ 5 _ -384.62 -17.93 __ 695115.00 __ 5949605.00 6 26.42 206.39 695520.00 5949840.00 • Maunder, Thomas E (DOA) From: Hobbs, Greg S (ANC) [Greg.Hobbs@bp.com] Sent: Wednesday, March 26, 2008 9:23 AM Ta: Maunder, Thomas E (DOA) Cc: Nigh, Jim Subject: RE: DS 05-34A Tom- Page 1 of 2 I apologize, I was out yesterday. Iran the calculations and concur with the 490 sks. I came up with 488.2 or 489, so 490 will be a good number for the permit. Thanks! Greg From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Tuesday, March 25, 2008 8:31 AM To: Hobbs, Greg S (ANC) Cc: Nigh, Jim Subject: RE: DS OS-34A Greg and Jim, I was plugging in the correct lead yield and it appears the sx count needs to be decreased. The 140 bbl desired slurry volume is correct per the column height and hole/casing size. Using the 1.61 yield gives -490 sx. Please confirm and I will update the application. Tom Maunder, PE AOGCC From: Maunder, Thomas E (DOA) Sent: Tuesday, March 25, 2008 8:00 AM To: 'Hobbs, Greg S (ANC)' Cc: Nigh, Jim Subject: RE: DS 05-34A Thanks Greg and Jim. This answers the questions. Tom From: Hobbs, Greg S (ANC) [mai{to:Greg.Hobbs@bp.com] Sent: Monday, March 24, 2008 5:29 PM To: Maunder, Thomas E (DOA) Cc: Nigh, Jim Subject: RE: DS 05-34A Hi Tom- Looks like Jim inadvertantly left the yield of the 15.8 in there. The planned Crete blend has a yield of 1.61 ft3/sk. Also, regarding the ES Cementer, the original thought was to place an ES Cementer in the string to assure we can keep the TOC below the surface casing shoe. Cement would be pumped, the cementer opened, circulation established, and freeze protect and brine placed there after cementing. We are now discussing leaving it out and 3/26/2008 Page 2 of 2 pumping down the annulus to assure the shoe is clear and pump freeze protect as they are doing on the west end. In re-reading the steps, we were not clear on the intended use of the diverter, which was assuring TOC placement below the surface shoe and placement of freeze protect. Given that we are still contemplating its use, we would like to state that it is an option for circulation if we run it, not for cementing purposes. Sorry about the confusion- Thanks- Greg From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Monday, March 24, 2008 3:49 PM To: Nigh, ]im Cc: Hobbs, Greg S (ANC) Subject: DS 05-34A Jim and Greg, I am reviewing the permit application and have a question: 1. What is the yield for the 7" lead cement? 1.16 seems low for 12.5 ppg slurry. Thanks in advance. I may have other questions, but wanted to get this off. Tom Maunder, PE AOGCC 3/26/2008 Page 1 of 2 Maunder, Thomas E (DOA) From: Hubble, Terrie L [Terrie.Hubble@bp.com] Sent: Thursday, March 13, 2008 11:37 AM To: Maunder, Thomas E (DOA) Subject: RE: 05-34 (191-121) Oops... you are correct. We are going to abandon 05-34 and drill 05-34A. I am sorry for the confusion. Terrie From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Wednesday, March 12, 2008 5:50 PM To: Hubble, Terrie L Subject: RE: 05-34 (191-121) Terrie, I did get the latest sundry for work. I am confused with -34A and -34B in your note. I only have -34 in the records. Could you clear this up for me? Thanks, Tom From: Hubble, Terrie L [mailto:Terrie.Hubble@bp.comJ Sent: Wednesday, March 05, 2008 10:33 AM To: Maunder, Thomas E (DOA) Subject: RE: 05-34 (191-121) Hi Tom, (I know you are away right now... but getting back to you on this subject.) No, there was not additional work on this well after 08/14/07 until 12/17/07 and all they did then was to attempt to tag the top of cement. They were not able to get past 7975'. But then again..., 1 just got word that the well is coming back onto the schedule for mid-April. I guess we'll be submitting a sundry to 'abandon' 05-34A and a Permit to sidetrack to 05-34B BHL. Hope you are having fun and we'll talk when you get back. Terrie From: Maunder, Thomas E (DOA} [mailto:tom.maunder@alaska.gov] Sent: Sunday, February 17, 2008 5:49 PM To: Hubble, Terrie L Subject: 05-34 (191-121) Terrie, 3/24/2008 Page 2 of 2 r~ L I am reviewing the 407 for the suspension of the well. It appears that there should be additional work accomplished after 8/14/07. If that is correct, please send the additional day's reports/summary. Email is fine. Call or message with any questions. Tom Maunder, PE AOGCC 3/24/2008 Alaska Department of Natural Resources Land Administration System ~~~ n ;~~, ~.' -~~ ~:y _ . , ,,,,.,,,.~~~is £'tats ~cecorders Search State Cabins Page 1 of 2 N~tulralF~s+our€~s __..._.....~ Alaska DNR Case Summary File T e• A~~ File Number: 28326 ~' ~ Printable Case F(..e._Summary YP ......~....... _~.. See Township, Range, Section and Acreage? New Search ~' Yes ~"` No _._. _ __~_~_.~__ __.._~ 1_.4g !~+'°~ I Case Abstract ~ Case Detail I Land Abstract ., file: ~U1, 2`1326 '~~'°~~ Search for Statu:~ Plat Updates ~~ of 0;%1 ;%~f)OS Customer: 000107377 BP EXPLORATION (ALASKA)1NC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Corse Type: ~~~ OIL & GAS LEASE COMP DNR Urrit: 780 O[L AND GAS File Location: DOG DIV OIL AND GAS Case Status: 3 5 ISSUED Status Date: 09/ 14/ 1.965 Totul Acres: 2491.000 Date Initiated: 05/28/1965 Office of Pr•inurry Res~onsihilil)~: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype : a~S NORTH SLOPE Las? Tt~ansaction: AA-NRB ASSIGNMENT APPROVED 11~er~dian: U Towiaship: OI1N I~~tn~t~: OISE .5'et~tlort.~ ~~I Sectir~n.lcr~rs: fi~0 Search Plats ~1Ni'/c~l~lll: ~_; ~UU')lti'~(I~J: 01~N 1~~Lli"],~rL': ~)~5L' ~.SCG11~N1.~ _~~) SPC1lU11_IL'/~(~~~. ~)~~~ aIc f~rcli~~n: l i I~nrtt.~lti~~: `O1 I ~~ Rc~rl~c: U (~L ~`~~cliun.~ ~ 1 .S'~~ctiurt Ic~~c~~~: 60 i Il~~rirliui~: U ToK~'rtship: Ol I N Kun,~e~: Ol ~F, .~~~~~ tiz,rt: ~? S'c°rtiutr .-Ic~~~c~s: fell Legal llesc-•iption OS-28-196 *'~ *SALE NOTICE LEGAL DESCRIPTION'` C14-156 T11N-RI ~E-UNI29, 30, 31, 32 291.00 U- 3- 7 ~ C~ fl Ca 5~ '.'~'-t! tl'l l~'t ~"~' Last updated on 03/13/2008. http://www. dnr. state.ak.us/las/Case_Summary. cfm?FileType=ADL&FileNumber=28326&... 3/ 13/2008 • TRANSMITTAL LETTER CHECKLIST WELL NAME ~' ~ ~~ ~ ~ ~S'~~1 PTD# o?O~''O~°~p Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: ~,E'1~D~/~ L~A)' POOL: ~t~d/~oE ~Ay ~ t Circle Appropriate Letter /Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS} TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in permit No. , AP[ No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(fj, all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - -,) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce / in,lect is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals 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 well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing ro ram. Rev: 1/11/2008 WELL PERM4T CHECKLIST Field & Pool PRUDHOE BAY, PRUDHOE OIL -640150 Well Name: PRUDHOE BAY UNIT 05-34A Program DEV Well bore sag ^ PTD#:2080370 Company BP EXPLORATION (ALASKA} INC Initial Classll•ype DEV I PEND GeoArea 890 Unit 11650 OnlOff Shore ~_ Annular Disposal ^ Administration 1 Petmit-feeattaGhed- --- ----- - --- - - -- - NA-- ---- -- - - - -- ---- -- --- -- -- ---- --- 2 Lease number appropriate --- ---- --- -- - --- -- - -- Yes-- ---- -- -- - -- -- --- - - --- 3 Un'tquewell_nameandnurnbet--- ---- - - - - - -Yes --- - - -- - -- --- --- -- - --- --- --- -- 4 Welllacetedin_a_defined_pool--- --- -- - -- -~ -- -- ---Yes - -- -- - - --- --- - - -- -- --- -- 5 WelllocaiedproperdistanCeftomdrilrngunitboundary--------------- ---------Yes-- ---------------------------------------- -- - - - -- -- ~ 6 Well located proper distanGefrom oiherwells- - - - - - - - - - - - Yes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 Suffioiertt aoreage available in drilling unit- - - - - - - - - - - - Y~ - - - - - - - - - - - - - - - - - - - - - - - - - - 8 If deviated, iswellbore Plat_included - - - - - - - - - - - - - - - -Yes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 Operatoroalyaffes'tedpattY---- -- - -- --- - - - ---Yes - --- - -- - - -- - --- - --- -- -- --- - -- -- - --- 10 Operator bas:appropriaiebondtnforoe_______________________ ___.___--Yes-- ----t3lanket~ondfE61g4193_---____-________-__.-___.-------------------- 11 Petmitcanbeissuetiwith4utconserVation4rder------------------- ---------Yes-- ----------------------------------------~-- -- - -- -- ---- -- Appr Date 12 PetmitcanbeissuedwithQUtadrrtinistratiue_approyal---------------- --------Yes- ----------------------------------------------- -- - -- - - ----- 13 Carl Permit be approved before 14-dsY wait- - - - - - - - - - - - - - Yes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ACS 311312008 14 WeIIIQCakedwithinareaand-strataauihortzedbylnjeCtionp[der#(put10#Jn_comments)-(For--NA-- ------------------------------------------------------------------------- 15 Ahwells_withtn114-milearQa_ofreyiewidenttfied(ForseNieewe!!only}------ --------- NA-- ------------------------------.------------------------------------ -- 16 Pre•produced injector: duration of Pro-production less than 3 months. (Far-service welt only) _ _ NA . _ _ .. _ _ _ _ .. _ _ - - _ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 17 Nopconven, g>ts conforms io AS31,05.030Q.1.A),142,A•D) - - - - - - ~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Englneering 18 Conductotstring-provided-------------------------------- ---------~A-- -----_ConductorsekinD$05-34(1p1.121.--------------------_---------------------- 19 Surfacecssingprotectsall_knownUSDWS__--._--_____--____ __---_ -- NA_ ____-_NOaquifers,A10413,_concluston5._________________.___-__-------------- --- 20 CMTvoladequate_toc+tculakeonconducto[8,surf_csg--------------- ---------KA-- -----SurfaGeGasingsetin 05-34,------------------------------------------------ 21 CMT-vol adequate to tie-in IQng skring to surf Gsg_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ NA_ _ - - - _ _ - New prpduckion casing will be cemenked io- immediately below window. - - - - - _ - - _ _ _ _ _ - - _ _ - - _ _ _ _ _ - _ X 22 CMT will coyecaltJcnownproductkvehorizons__._-___----------- ------ --Yes- -----------.----------------------------- --- ---- - -- ---- - --- 23 Casing des~ns adequate for C, T S & permafrost- - - - - - - - - - - -Yes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24 Adequate tankage-or reserve pit _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes _ _ _ _ - _ Rig egrripped with steel pits. No reserve pit planned._ Alt waste-to approved disposal wetl(y). - _ _ - _ _ _ _ _ _ _ 25 (tare-drill,has_a10~40$forabandonmenibeen approved------------ ---------Yes- ------308-072------------------------------------------------------------ 26 Adequate wellboreseparation-proposed _ _ _ _ . _ - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Yes _ _ _ _ _ _ Proximity analysis performed, Traveling oylinder path calculated, _ - _ _ . - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ 27 Ifdiverterrequired,doesitmeetrQ9ulaiions--------------------- --------KA-- ------~OPstaGkwillal[eady_be_inplaee,----------------.-----------_---------------- Appr Date 28 Drilling fluid-program schematic & equip list adequafe_ - - _ _ _ _ _ - - _ _ _ _ _ _ _ Yes _ _ _ _ _ _ _ Maximum anticipated fo[mation pressu[e7.8 EM1N in zone.- Planned MW up to 10.1 ppg in 8,5"hole and 8.5 ppg- TEM 3!2512008 29 BOPES,_dotheymeetregulation,--_-__._______ _____Yes_ ________intone, Cretaceous overpressure-isexpeGted.___________-___------------------ -- ~~ 30 BOPS-press rating appropriate; test to_(put psis in comments)_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes _ _ _ _ _ _ _ = = _ _ _ _ _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ _ _ _ _ . _ MASP calculated at 2704 psi.. $500_psi_BOP tesiplanned, . 31 ChokeroanifoldoomRlieswlAPl_RP-53(May34j___________________ _________ Yes_ _ = _ _ _______--__ 32 _UYorkwilloccutwithoutoperationshutdowrr---------------------- --------Yes- --------------------------------------------- - - -- - --- --- 33 lspresenceofti2$gasprobable__________--_____--------- --- -----Yes- ------D$5is_not"an H2$Pad"._Righas sensorsand_alarms.------------------_-------_____-- 34 Mechanical_condltionofwQltsv~ithinAQRyerified(Fo[servicewellonly)----- --------- NA-- --------------------------------------------------------------- --- - - Geology 35 Petmft_ean be issued wlo hydrogen sul#ide measures _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ No_ - _ Pad-DS 14 is not a designated H2Spad, butnormal precautions wilkbe used. - - - _ _ - - _ _ - . _ _ _ _ _ _ _ _ 36 Dataprasentedonpoterdial9verpressurezones- - - - - - - - - - - - -Yes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Appr Date 37 Setsmtcanalysis ofshallow gas zflnes- - - - - - - - - - - - - - - Yes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ACS 3113!2008 '38 Seaked_conditionsun_rey_(ifoff-shore)------------------------- -------~'es_ ------------------------------ 39 Contactnamelphoneforweekly_progressrep9rts[exploratorygn~]---_--- -_--____Yes_ _____JimNigh564-4220--_______________________________---------------------- Geologic Engineering • Date Date: i ' Date Commissioner: m s er ssioner Com '~Zi ~- Z$~. ~ ~^ G.? '~~ O