Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation
Commission
HOME
EVENTS
DATA
Data List
Drilling
Production
Orders
Data Miner
Document Search
REPORTS
Reports and Charts
Pool Statistics
FORMS
LINKS
Links
Test Notification
Data Requests
Regulations
Industry Guidance Bulletins
How to Apply
ABOUT US
History
Staff
HELP
Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
208-061
2-Q%- 04 t RECEIVED 46 BAKERI1 DEC 2 3 2016 PRINT DISTRIBUTION LIST HUGHES Please sign and return one copy of this transmittal form to: COMPANY l ) bf6n Alaska Inc. BP Exploration(Alaska) Inc. Petrotechnical Data Center, LR2-1 DATA LOGGED Ott/201 WELL NAME 05-23B 900 E. Benson Blvd. M.K.BENDEr' Anchorage,Alaska 99508 FIELD Prudhoe Bay Unit to acknowledge receipt of this data. COUNTY North Slope Borough LOG TYPE RPM:PNC3D BHI DISTRICT Alaska LOG DATE December 12,2016 AUTHORIZED BY Paul Canizares EMAIL Paul.Canizares(a(bakerhughes.com TODAYS DATE December 22,2016 Revision STATUS Final Replacement: No Details: Rev. Requested by: COMPANY FIELD/ FINAL CD/DVD FINAL PRELIM LOGS (las,dlis,PDF,META, SURVEY REPORT ADDRESS(FEDEX WILL NOT DELIVER TO P.O.BOX) LOGS CGM,Final Surveys) (Compass) PERSON ATTENTION #OF PRINTS #OF PRIN I S #OF COPIES #OF COPIES #OF COPIES 1 BP North Slope. 0 0 0 0 0 EOA,PBOC,PRB-20(Office 109) D&C Wells Project Aids Agatha Rutka&Barbara Glassmaker 900 E.Benson Blvd. Anchorage,Alaska 99508 2 ConocoPhillips Alaska Inc. 0 1 1 0 0 Attn:Ricky Elgarico ATO 3-344 700 G Street Anchorage,AK 99510 3 ExxonMobil,Alaska 0 1 1 0 0 Attn:Lynda M.Yaskell and/or Lisa Boggs 3201 C Street,Suite 505 Anchorage,AK 99503 SCANNE MAY 2 3201Z 4 State of Alaska -AOGCC 0 1 I 1 I 0 0 Attn:Makana Bender 333 W.7th Ave,Suite 100 Anchorage,Alaska 99501 5 DNR-Division of Oil&Gas *** 0 1 1 0 I 0 Attn:James Hyun 550 West 7th Avenue,Suite 802 Anchorage,Alaska 99501 ***Stamp"confidential"on all material deliver to DNR 6'BP Exploration(Alaska)Inc. 0 0 0 0 0 Petrotechnical Data Center,LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 Attn:David Itter TOTALS FOR THIS PAGE: 0 0 TOTALS FOR ALL PAGES: 0 4 4 0 0 Z,O'6�OCo 1 REC�1asi-t `MI MAR 14 2 1' PRINT DISTRIBUTION LIST BAKER HUGHES AOGCCPlease sign and return one copy of this transmittal form to: COMPANY BP Exploration Alaska Inc. BP Exploration(Alaska)Inc. Petrotechnical Data Center,LR2-1 DATA LOGGED WELL NAME 05-23B 900 E. Benson Blvd. 3 45/2010, I K. BENDER Anchorage,Alaska 99508 FIELD Prudhoe Bay Unit to acknowledge receipt of this data. COUNTY North Slope Borough LOG TYPE RPM:PNC3D BHI DISTRICT Alaska --- LOG DATE December 15,2015 AUTHORIZED BY Paul Canizares EMAIL Paul.Canizares@bakerhuahes.com TODAYS DATE March 11,2016 Revision STATUS Final Replacement: No Details: Rev. Requested by: COMPANY FIELD/ FINAL CD/DVD FINAL PRELIM LOGS (las,dlis,PDF,META, SURVEY REPORT ADDRESS(FEDEX WILL NOT DELIVER TO P.O.BOX) LOGS CGM,Final Surveys) (Compass) PERSON ATTENTION #OF PRINTS #UI-F'HIN I S #OF COPIES #OF COPIES #OF COPIES 4 4 4 U 4 • 1 BP North Slope. 0 0 0 0 0 EOA,PBOC,PRB-20(Office 109) D&C Wells Project Aids Agatha Rutka&Barbara Glassmaker 900 E.Benson Blvd. Anchorage,Alaska 99508 1 2 ConocoPhillips Alaska Inc. 0 I 1 I 1 0 0 Attn:Ricky Elgarico ATO 3-344 700Street SCANNED APR Anchorage, � Q AK 99510 � 2016 3 ExxonMobil,Alaska 0 I 1 I 1 I 0 I 0 Attn:Lynda M.Yaskell and/or Lisa Boggs 3201 C Street,Suite 505 Anchorage,AK 99503 4 State of Alaska -AOGCC 0 I r.1 I i I 0 I 0 Attn:Makana Bender 333 W.7th Ave,Suite 100 Anchorage,Alaska 99501 5 DNR-Division of Oil&Gas *** 0 1 1 0 I 0 Attn:James Hyun 550 West 7th Avenue,Suite 802 Anchorage,Alaska 99501 *5*Stamp"confidential"on all material deliver to DNR 6 BP Exploration(Alaska)Inc. 0 0 I 0 0 0 Petrotechnical Data Center,LR2-1 900 E.Benson Blvd. Anchorage,Alaska 99508 Attn:David Itter TOTALS FOR THIS PAGE: 0 4 4 .. TOTALS FOR ALL PAGES: 0 4 4 0 0 Image Pro~ct Well History File Cove~age 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. ~~ $ - Q ~ L Well History File Identifier Organizing (done) ^ Two-sided III II'III II III II III RE AN DIGIT DATA C r Items: iskettes, No. Greyscale Items: ~ ~~ ^ Other, No/Type: ^ Poor Quality Originals: ^ Other: NOTES: BY: Date: 3 / / d o a~~~~~,., iiiuimiiuiim OVERSIZED (Scannable) ^ Maps: ^ Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) ^ Logs of various kinds: ^ Other:: /s/ P ProjectProofing III IIIIIIIIIII IIIII Maria Date: /s/ 1 ~Y: r<~ Q Scanning Preparation _~ x 30 BY: Maria Date:, 3 Production Scanning Stage 1 BY Stage 1 Page Count from Scanned File: ~~ (Count does include cover heet) Matches Number in Scannin Pre aration: __~,/ YES NO Page Count 9 p .Maria Date: ~ `~~/~ /s/ ~~ If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: Scanning is complete at this point unless rescanning is required. "luiuuuiiiiuu iReScanned III II'lll IIIII II III BY: Maria Date: /s/ Comments about this file: Quality Checked III IIIIII III (I~I III ~~ + I I =TOTAL PAGES //~ (Count does not include cover sheet) /s/ 10/6/2005 WeII History File Cover Page doc • ALA OIL AND GAS CONSERVATION COMM SION RECEIVED REPORT OF SUNDRY WELL OPERATIONS AUG 24 2012 1. Operations Abandon L( Repair Well U Plug Perforations U Perforate U OttACIGCC Performed: Alter Casing ❑ PuII Tubing ❑ Stimulate - Frac ❑ Waiver ❑ Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Stimulate - Other ❑ Re -enter Suspended Well ❑ 2. Operator 4. Well Class Before Work: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc Development 0 Exploratory ❑ . 208 -061 -0 3. Address: P.O. Box 196612 Stratigraphic ❑ Service ❑ 6. API Number: Anchorage, AK 99519 -6612 50- 029 - 21963 -02 -00 7. Property Designation (Lease Number): s 8. Well Name and Number: ADL0028326 PBU 05 -23B 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field /Pool(s): To Be Submitted PRUDHOE BAY, PRUDHOE OIL 11. Present Well Condition Summary: Total Depth measured 12340 feet Plugs measured 10910 feet true vertical 8747.56 feet Junk measured None feet Effective Depth measured 10910 feet Packer measured See Attachment feet true vertical 8808.35 feet true vertical See Attachment feet Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20" 91.5# H -40 37 - 117 37 - 117 1490 470 Surface 3212 10 -3/4" 45.5# J -55 36 - 3248 36 - 3247.53 3580 2090 Intermediate None None None None None None Production 9429 7" 26# L -80 35 - 9464 35 - 8242.33 7240 5410 Liner 3041 4 -1/2" 12.6# L -80 9299 - 12340 8085.94 - 8747.56 8430 7500 Perforation depth Measured depth See Attachment feet True Vertical depth See Attachment feet Tubing (size, grade, measured and true vertical depth) 4 -1/2" 12.6# 13Cr80 34 - 9307 34 - 8093.5 Packers and SSSV (type, measured and true vertical depth) See Attachment See Attachment See Attachment Packer None None None SSSV 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 444 34739 0 0 1898 Subsequent to operation: 0 0 0 0 0 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory Development gi - Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: 00 IN Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAG 111 GINJ ❑ SUSP❑ SPLUG ❑ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: N/A Contact Nita Summerhays Prepared by Nita Summerhays 564 -4035 Printed Name .. - • _ Title Petrotechnical Data Technician i i .. =✓ I Phone 564 -4035 Date 8/24/2012 01 4 W Form 10-404 Revised 10/20 1) MS AUG 2 8 •012 Afd71 V1.'" „ � ��' Submit Original Only e • Daily Report of Well Operations ADL0028326 AC IVI 1 A • cope o wor : " - • w con ingen pro le mo. i Ica ion - a . p MOL, start R /U. 7/2/2012 Continued on WSR 7 -3 -12 Continued trom WSR of 07/02/12. CT -8, 1.75 ", Scope of work: PPROF w/ contingent profile modification (CIBP /adperf) Cont. RU, PU Lubricator, MU 3.698" x 9.55' Drift assembly. Stab on & PT SPE, negative test on DFC's & pump line check. RIH, tagging up in # 2 GLM station, multiple attempts with various rates pumping thru CT, no change, POOH. RIH with 3.36" x 9.3' drift. Tagged bottom at 12,244'. POOH. MU Memory PPROF logging BHA. RIH. Well flowing to test separator. Log down / up from 1400- 11900' at 40, 60 and 80 fpm. Take stop counts at 10400, 10900 and 11900'. «< Work in Progress 7/3/2012 »> Continued from WSR of 07/02/12. CT -8, 1.75 ", Scope of work: PPROF w/ contingent profile modification (CIBP /adperf) Cont. up w /Jewellry logging pass, pause @ 9150' & POOH. LD SWS memory logging tools, check data. Good data, initial field results indicate bottom perfs making all the gas, GHOST tool damaged at end of first pass. MU BOT 3.68" x 10.54' drift bar assembly. RIH. Thru #2 GLV Sta with no problem, cont. RIH. Tagged @ 11,679' sticky, POOH, flag at 11,000'. POOH. MU CIBP BHA. Fluid pack well. RIH w/ HES 4 -1/2" CIBP to 10568' and CIBP hung up in top set of perfs. Unable to free. Intentionally set CIBP w/ top at 10566' CTM. _ POH. Cut 150' of CT for chrome mgmt. MU BTT milling assy 7/4/2012 In progress Cl U #8 w/ 1.75" CT (CTV= - 30.6) Objective: PPROF w/ contingent profile modification (CIBP /adperf) RIH w/ BTT milling assy w/ 3.70" mill to tag at 10573' CTM. Mill out CIBP and push to 11,100'. Re- drift perforation interval. Stacked weight and pulled heavy a Tot between 10200 and 10800. Worked that area multiple times until it drifted without abnormal weight bobbles. POOH. LD milling assy. RIH w/ BTT K -1 4 -1/2" CIBP and set at 10910'. POH 7/5/2012 In progress Cl U #8 w/ 1.75" CT (CTV =30.6) Objective: PPROF w/ contingent profile modification (CIBP /adperf) Finish POOH after setting CIBP. FP wellbore to 2000' w/ 50/50 McOH. Blow down reel w/ N2. RDMO to shop for pipe swap 7/6/2012 Job complete FLUIDS PUMPED BBLS 854 KCI 45 50/50 METH 243 1% SL KCL 145 1% SL KCL W /SAFELUBE 1287 TOTAL • • Perforation Attachment ADL0028326 Pert Opera Meas Meas SW Operation tion Depth Depth TVD Depth TVD Depth Name Date Code Top Base Top Base 05- : 5/ 9y: - . 51 10: 1 8:. 9. 88. 9 � 05- .B 7/6 12 BP 109 0 11839 8745.67 8716.81 05 -23B 5 29/0: 'ER 1 1 • 11830 73 1 '87 AB ABANDONED MIR REMOVED APF ADD PERF MIS MECHANICAL ISOLATED BPP PULLED MLK MECHANICAL LEAK BRIDGE OPEN BPS PLUG SET OH HOLE FCO FILL CLEAN OUT STC STRADDLE PACK, CLOSED FIL FILL STO STRADDLE PACK, OPEN SQF SQUEEZE FAILED SPS SAND PLUG SET SQZ SQUEEZE SL SLOTTED LINER PER PERF SPR SAND PLUG REMOVED RPF REPERF • • Packers and SSV's Attachment ADL0028326 SW Name Type MD ND Depscription 05 -23B PACKER 9230 7958.05 4 -1/2" Baker S -3 Perm Packer 05 -23B PACKER 9299 8023.26 5" Baker ZXP Top Packer M TREE= 4-1/16" OW • WELLHEAD = FMC 05-23 ACTUATOR = BAKER C B SAFETY NOTES: WELL ANGLE > 70° @ 10100'. KB. ELEV = 72' °"* 4 -112" CHROME TBG*** BF ELEV = NA I j I KOP = 3232' Max Angle= 95" @12112' Datum MD = NA 2180' H4 -112" HES X NIP, ID = 3.813" Datum TVD = 8800' SS 20" CONDUCTOR, 91.5#, H 110' H -40, ID = 19.124" MILLOUT WINDOW (05 -23B) 3232' - 3248' Minimum ID = 3.726" a@ 9296' GAS LIFT MANDRELS 4 -1/2" HES XN NIPPLE ST MD WD DEV TYPE VLV LTCH PORT DATE 2 3182 3181 1 KBG2 DOME BK 16 06/02/08 ,, 1 6018 5500 39 KBG2 SO BK 20 06/02/08 110 -3/4" WHIPSTOCK (05/15/08) I 3232' 9199' H4-1/2" HES X NIP, D = 3.813" 110 -3/4" EZSV (05/15/08) H 3261' 7 -5/8" CSG STUB (05/14/08) IH 3320' 1•-- mum 9230' 1 10= 7" X 4 -1 /7' BKR S -3 PKR, 3.870" ►. ... :. 10-3/4" CSG, 45.5 #, —I 3476' I ►.�• ❖• ❖.• ❖••.•. � J -55 BTC, ID = 9.953" 2 0 9264' H4-1/2" HES X NIP, ID = 3.813" 1 3 - 1 / 2 " I { 8285' - ' ❖. ❖.• __ '. . ► il l p iii ►� , 9295' H4- 1 /2 " HES XN NIP, ID = 3.725" I : ► . r PERFORATION SUMMARY . ...' •. ... ►�� REF LOG: SLB ON 05/22/08 !� : ❖ * • 4 ANGLE AT TOP PERF: 90" @ 10550' . • • i . • • � • i ► . • i ._6.1∎.. ►.. 9299' 7" X 5" BKR HRD ZXP LTP Note: Refer to Production DB for historical pert data .;•i •• ..•: * ;•i I 1 w/ 11.77 PBR, ID = 4.410" SIZE SPF INTERVAL Opn /Sqz DATE ' + : . ■ , . . 2 -7 /8" 6 10550 - 10810 0 05/29/08 '.4!**" :,: I i I 9307' H4 -1/2" WLEG, ID = 3.958" I 2-7/8" 6 11120 11830 C 0529108 • • i • ,11A r 9321' 11 LNRHGR,ID=4.430" 7" X 5" BKR FLEX -LOCK • ❖• 17" LNR, 26 #, L -80 TCII XO TO L -80 BTC-M H 4673' 9330' HS' X 4-1/2" XO, ID = 3.910" I 4-1/7' TBG, 12.6#, 13CR -80 VAM TOP, H 9307' .0152 bpf, ID = 3.958" I7" LNR, 26#, L -80 BTC-M, .0383 bpf, ID = 6.276" I—I 9464' 10910' H4-1/2" BTT CIBP (07/06/12) NI ______----" 1 BPTD 12260' I 11100' FISH: CIBP MLLED UP & ∎•.•.•. PUSHED TO BOTTOM •�• • • ∎ (07/05/12) 14 -1/2" TBG, 12.6 #, L -80 IBT -M, .0152 bpf, ID = 3.958" 1--I 12340' .......• DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/27/90 08 ORIG COMPL SUSPENDED 07/01 /08 RP/PJC DRLG DRAFT CORRECTIONS WELL: 05 -23B 01/07/91 N2ES COMPLETION 07/09/12 CJS /JMD SET FISH & CIBP(07/05- 06/12) PERT No: F 2080610 10/17/01 NORDIC 1 CTD SDTRACK (05 -23A) API No: 50-029-21963-02 05/30/08 N7ES SIDETRACK (05 -23B) SEC 31, T11 N, R15E, 1619' SNL & 23' WEL 06/02/08 JKR'PJC GLV C!O 06/07/08 ?/ PJC DRLG DRAFT CORRECTIONS BP Exploration (Alaska) • • bp BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 0 Anchorage, Alaska 99519 -6612 May 11,2012 AUG z I 2U12 Mr. Jim Regg Alaska Oil and Gas Conservation Commission Q ( Q 1 333 West 7 Avenue Anchorage, Alaska 99501 s_ g..,3 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 -12B 2011800 50029202440200 Sealed conductor NA NA N/A N/A NA 05 -13B 2071460 50029202500200 Sealed conductor NA NA N/A N/A NA 05 -14A 1930820 50029202530100 Sealed conductor NA NA N/A N/A NA 05 -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 -28B 2060890 50029222080200 0.6 NA 0.6 N/A 1.7 4/10/2011 05 -30 1911150 50029222130000 1.2 NA 1.2 N/A 10.2 4/11/2011 05-31B 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 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 3/1712010 Permit to Drill 2080610 Well Name/No. PRUDHOE BAY UNIT 05-23B Operator BP EXPLORATION (ALASKI~ INC API No. 50-029-21963-02-00 MD 12340 TVD 8748 Completion Date 5/30/2008 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION t/ Mud Log No Samples No Directional Survey Yes DATAINFORMATgN Types Electric or Other Logs Run: MWD DIR / GR / PWD, MWD DIR / GR / RES, NEU /DENS (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH / ly a mearrrmi numoer rvame acme ~neu~a rvo arar[ atop a.n rcecervea ~.vmmema ED D Asc Directional Survey 0 12340 Open 5/30/2008 ~ R t Dire nal Survey 0 12340 Open 5/30/2008 ED C Lis 16972 Induction/Resistivity 3098 12339 Open 9/26/2008 LIS Veri, GR, ROP, FET, RPX, RPS, RPM, RPD og Induction/Resistivity 25 Blu 3200 12340 Open 9/26/2008 MD Vision Service 27-May- 2008 Log Induction/Resistivity 2 Blu 3200 12340 Open 9/26/2008 TVD Vision Service 27- May-2008 ED C Las 17279 Induction/Resistivity 3200 12339 Open DRHO, NPHI, ROP, RPD, RPM, RPS, RPX FIELD DATA Well Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments DATA SUBMITTAL COMPLIANCE REPORT 3/17/2010 Permit to Drill 2080610 Well Name/No. PRUDHOE BAY UNIT 05-23B MD 12340 TVD 8748 ADDITIONAL INFORMATION Well Cored? Y~N Chips Received? -'ftid-~ Analysis ~1hhfQ- Received? Completion Date 5/30/2008 Comments: Compliance Reviewed By: Operator BP EXPLORATION (ALASICAI INC Completion Status 1-OIL Current Status 1-OIL Daily History Received? ~ N Formation Tops ~ N Date: API No. 50-029-21963-02-00 UIC N ~~ • 09/23/08 i~ i~ Schlumberger Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Wall .Inh it N0.4903 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 I i.n rlnww ..Nw.. n..~., e~ n_~_- L-216 10687773 MDT - 05/09/04 1 1 L-204 11212880 MDT ~ 07/24/06 1 1 14-22A 11999036 PPROF W/FLOW SCAN IMAGER / '~(0 08/17/08 1 1 H-11 12017507 USIT - 08/09/08 1 1 D-22C 11963190 USIT _ '1 ,' (~ 08/20/08 1 1 NK-10 12066549 MEM I JECTION PROFILE C) - ~( J Q'~ 09/11/08 1 1 09-28A 12031499 RST - ~ 08/01/08 1 1 N-10A 12005225 MCNL ~ ~ 08/20/08 1 1 05-23B 40016995 OH MWD/LWD EDIT 05/27/08 2 1 rLCM.7C MVn1YVYYLClJl7C ACVCIr'1 DT JI171V11VVl AIVU rYCI UI'1IV11V171 VIVO liVY7 tAlrrl I V: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date Delivered: Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-283 ATTN: Beth Received by: ~ ~" 4~~ :,~: STATE OF ALASKA~Y ALASKA~L AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG .Lk~-~ ~ zoo8 ~J~1S. C01°711?~l~8i0111 1 a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended zoAACZS.,os zoAACZS.,,o ^ GINJ ^ WINJ ^ WDSPL ^ WAG ^ Other No. of Completions One 1 b. Well Class: ~ ~ ' ®Development ^ Exploratory ^ Service ^ Stratigraphic 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Aba 5/30/2008 12. Permit to Drill Number 208-061 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 ~~ 6. Date Spudde~ Gam' ' 5/ /2008 13. API Number 50-029-21963-02-00 ' 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 5/26/2008 ~ 14. Well Name and Number: PBU 05-23B ' 1619 FNL, 23 FEL, SEC. 31, T11N, R15E, UM Top of Productive Horizon: 2100' FSL, 349' FEL, SEC. 30, T11 N, R15E, UM 8. KB (ft above MSL): 62.68' - Ground (ft MSL): 34.3' 15. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay Total Depth: 3333' FSL, 1492' FEL, SEC. 30, T11 N, R15E, UM 9. Plug Back Depth (MD+TVD) 12260' 8753' Pool 4b. Location of Well (State Base Plane Coordinates, NAD 27): Surface: x- 697022 y- 5949821 Zone- ASP4 10. Total Depth (MD+TVD) 12340' , 8748' 16. Property Designation: ADL 028326 - TPI: x- 696586 y- 5953531 Zone- ASP4 Total Depth: x- 695407 y- 5954734 Zone- ASP4 11. SSSV Depth (MD+TVD) None 17. Land Use Permit: 18. Directional Survey ®Yes ^ No Submit 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)~~?3f 57ya) MWD DIR / GR / PWD, MWD DIR / GR / RES, NEU /DENS L//iYDOi~G~3v?~~,? i~lD 22. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH MO SETTINGDEPTH ND HOLE AMOUNT WT. PER FT. GRADE TOP `BOTTOM - TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" 91.5# H-40 Surfa a 117' Surface 117' 30" 44 sx Arcticset 10-3J4" 45.5# J-55 Surface 2 2' Surface 3232' 13-112" 1100 sx PF 'C' 350 sx Class 'G' 7" 26# L-80 28' 9464' 28' 8242' 8-1/2" 262 sx Lite Crete 167 sx Class'G' 4-1/2" 12.6# L-80 9299' 12340' 8086' 8748' 6-1/8" 365 sx Class 'G' 23. Open to production or inject ion? ®Yes ^ No 24 TueING RECORD If Yes, list each interval open (MD+TVD of Top & Bottom; Perforation Size and Number): SIZE DEPTH SET MD PACKER SET MD 2-7/8" Gun Diameter 6 spf 4-1/2", 12.6#, 13Cr80 9307' 9230' , MD TVD MD TVD 10550' - 10810' 8803' - 8805' 11120' - 11830' 8799' - 8779' 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL MD AMOUNT Ht KIND OE MATERIAL USED 2200' Freeze Protect w/ 75 bls Diesel 26. PRODUCTION TEST Date First Production: June 11, 2008 Method of Operation (Flowing, Gas Lift, etc.): Flowing Date Of Test: 6/21/2008 HOUrS Tested: 10 PRODUCTION FOR TEST PERIOD OIL-BBL: 668 GAS-MCF: 9,000 WATER-BBL: 838 CHOKE SIZE: 54 GAS-OIL RATIO: 13,479 Flow Tubing Press. 1,635 CBSIng PreSS: 1,300 CALCULATED 24-HOUR RATE OIL-BBL: 1,602 GAS-MCF: 21,599 WATER-BBL: 2,012 OIL GRAVITY-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 interva-s 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 pec2D AAG.2501~1. s G~~~v;~'_~'i'st}N z i~. i! None S~S~~08" Form 10-407 Revised 02/2007 CONTINUED ON REVERSE SIDE 5 ~F~ ~Ul~ ~ ~ ?DDg ~R~~enioi 28. GEU' LOGIC MARKERS (LIST ALL FORMATIONS AND ERS 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. Ugnu 4 5080' 4782' None Sag River 9452' 9231' Shublik 9499' 8276' Shublik B 9519' 8295' Shublik C 9530' 8305' Sadlerochit 9567' 8340' Top CGL /Zone 3 9687' 8454' Base CGL /Zone 2C 9753' 8517' 23SB /Zone 2B 9829' 8588' 22TS 9854' 8610' 21 TS /Zone 2A 9953' 8685' Zone 1 B 9997' 8713' TDF /Zone 1A 10095' 8760' Base Sadlerochit 10799' 8804' Formation at Total Depth (Name): TDF /Zone 1A 10095' 8760' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the fore oing is true and correct to the best of my knowledge. hh ~ V ~/~$ Signed Terrie Hubble Title Drilling Technologist Date PBU 05-236 208-061 Prepared By Name/Number. Terrie Hubble, 564-4628. Well Number Permit No. / A royal No. Drilling Engineer: Ron Phillips, 564-5913 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 BP EXPLORATION Leak-Off Test Summary Legal Name: 05-23 Common Name: 05-23 Test Date Test Type 5/22/2008 FIT 5/16/2008 FIT 5/21/2008 FIT 5/22/2008 FIT Page 1 of 1 Test Depth (TMD) Test Depth (ND) AMW Surface Pressure -- _ Leak Off Pressure (BHP) _ _ --- EMW 9,465.0 (ft) 8,243.0 (ft) 8.40 (ppg) 686 (psi) 4,283 (psi) 10.00 (ppg) 3,232.0 (ft) 3,232.0 (ft) 9.00 (ppg) 600 (psi) 2,111 (psi) 12.57 (ppg) (ft) (ft) (PPg) (Psi) (Psi) 12.57 (PPg) 9,465.0 (ft) 8,243.0 (ft) 8.40 (ppg) 686 (psi) 4,283 (psi) 10.00 (ppg) Printed: 6/13/2008 3:00:33 PM ~ ~ BP EXPLORATION Page 1 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date From - To Hours Task Code NPT Phase Description of Operations 5/1/2008 108:00 - 18:00 10.001 MOB N WAIT PRE 18:00 - 00:00 6.00 MOB N WAIT PRE 5/2/2008 00:00 - 00:00 24.00 MOB N WAIT PRE 5/3/2008 00:00 - 06:00 6.00 MOB N WAIT PRE 06:00 - 00:00 18.00 MOB N WAIT PRE ~ 5/4/2008 ~ 00:00 - 00:00 ~ 24.00 ~ MOB ~ N ~ WAIT ~ PRE 15/5/2008 ~ 00:00 - 00:00 ~ 24.00 ~ MOB ~ N ~ WAIT ~ PRE 15/6/2008 100:00 - 06:00 6.00 ~ MOB ~ N ~ WAIT ~ PRE Wait for pre-rig work on well 05-23. General maintanence and house keeping while waiting. Work on bouncing bearings in the drawworks. Change oil in drawworks and check chains. Inspect fire extinguishers and nitrogen tanks. Clean. Wait on wind to move well house. Wind speed in excess of 20 MPH Continue to wait on wind to pull the well house on well 05-23. Wind speed in excess of 20 MPH. Both crews watched "BP's 8 Golden Rules" safety video. Had apre-spud with crews on well 05-23B. Maintenance and clean the rig. Service top drive, dress hammer union on mud lines, work on EZ torque spring, dress BOP bolts. Wait for Wells Group to remove well house on 05-23. Wind must drop below 20 MPH. Current wind gusts up to 22 MPH. Continue to wait on wind for wellhouse removal. Wind gusts up to 30 MPH. General maintenance on ria. Replace steam valves in pump room. Clean the pipe shed with pressure washer. Grease the choke manifold. Replace the EZ-torque regulator. Paint in the pits. Inspect the top drive and replace a bolt. Replace a tail light in the crew van. Clear some snow off the pad. Continue to wait on wind for wellhouse removal. Wind speeds increased through night with gusts well over 30 MPH. Paint floors in pits, pump room, break room, and hallways. Pressure wash top drive and rig floor. Change oil in various equipment. Replace hydraulic lines in various equipment. Change dies on top drive backup wrench. Continue to wait on wellhouse removal on 05-23. Wind gusts reaching up to 40 MPH. Continue to scrub and clean. Continue to paint remaining walk ways. Rig is looking good. Loader operator keeping pad and access road clear. Continue to wait on wind for 05-23 wellhouse removal. Wind gusts reaching up to 40 MPH. Continue to scrub and clean. Printetl: 6/13/2008 3:00:40 PM BP EXPLORATION Page 2 of 15 Opf:rations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABORS 7ES Rig Number: 7ES Task Code 'I Phase Description of Operations Date ~ From - To Hours ~~~, NPT _~ 5/6/2008 00:00 - 06:00 6.00 MOB N WAIT PRE - Continue to paint remaining walk ways. Loader operator keeping pad and access road clear. 06:00 - 00:00 18.00 MOB N WAIT PRE Continue to wait on wind for 05-23 wellhouse removal. Wind gusts reaching up to 35 MPH. Clear pad and rig access areas as required w/rig loader. Paint, scrub, clean. Maintenance on rig as required. Clean, scrub, paint more. 5/7/2008 00:00 - 06:00 6.00 MOB N WAIT PRE Continue to wait on wind for 5-2 I Wind 24 mph gusting 32 mph. Phase 2 on all main roads. Convoy travel 2 or more vehicles reauired_ Clear pad and rig access areas as required w/rig loader. 06:00 - 00:00 18.00 MOB N WAIT PRE Continue to wait on wind for 05-23 wellhouse removal. Wind 23 mph gusting 30 mph. Level 2 on all main roads. Convoy travel 2 or more vehicles required. Maintain access to rig entryways and pad access. Paint, clean some more. Repair blow down valve on # 1 pump. 5/8/2008 00:00 - 06:00 6.00 MOB N WAIT PRE WOW. Wind 20 mph gusting 35 mph at 06:00. 06:00 - 00:00 18.00 MOB N WAIT PRE WOW. Wind 15 mph gusting 20 mph at 00:00. Mobilized dozer and loaders to clear snow drifts as wind dro ed. Snow removal complete from rig travel/wellhouse areas as of midnite. 5/9/2008 00:00 - 10:30 10.50 MOB N WAIT PRE Wait on well site services. Requested mobilization of crane to remove well house at 01:00. At 04:00 PBU went to Phase 1, ~° ' ~ ~ ~ ~` Level 1 road and driving conditions. Crews digging out well led for 08:30 h d d fl li C h ~ ~ Lam. ~ . Z ~ ~ ~ . nes. rane sc e u ouse an ow The well house on 05-23 was removed at 10:30 AM. 10:30 - 00:00 13.50 MOB N WAIT PRE The flow line riser was not removed as the tree and line were not locked out and tagged out (safed-out). The Drill Site 5 Pad Operator was unable to attend to this well as he was busy bringing the wells back on line as a result of a field-wide shut down caused by a power outage that occurred during the night of May 8th. 5/10/2008 00:00 - 06:00 6.00 MOB N WAIT PRE Well house removed. Wait on production to perform energy isolation and remove flow line. Wait on well site services to perform site levelling. Pad operator occupied w/bringing shut in wells back into service. 06:00 - 22:00 16.00 MOB N WAIT PRE Well site services completed site levelling at 22:00. Move all available rig mats to 5-23 site. At 22:00 Hot Oil truck broken down on S pad access. All Peak rig move trucks moving 27E down S pad to Spine delayed behind boken down truck. 22:00 - 00:00 2.00 MOB N WAIT PRE Road cleared and 27E rig move back in progress at midnite. Wait on Peak rig move trucks moving 27E f/S pad to Deadhorse. Prepare 5-23 site. Move sub racks and accessory equipment as required. 5/11/2008 00:00 - 04:00 4.00 MOB N WAIT PRE Wait on rig moving truck to complete 27E move f/S pad to Deadhorse. Spot rig mats. Lay Herculite f/cellar on 5-23. Move accessory equipment as required. Printetl: 6/13/2008 3:00:40 PM • BP EXPLORATION Page 3 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date ~ From - To Hours ~ Task Code NPT Phase Description of Operations 5/11/2008 00:00 - 04:00 4.00 MOB N WAIT PRE Hold prespud at pre-tour meeting w/BP WSL, NAD tourpusher, all hands, mud engineer. 04:00 - 05:00 1.00 MOB P PRE Rig move trucks arrive location. Pull pits away f/sub-structure for rig move. 05:00 - 08:00 3.00 MOB P PRE Pull substructure away f/5-346 w/derrick up and move rig to 5-23. Move over and RU on 5-23A. Move pits and connect intertie to sub. Over well ready to take on fluids at 07:00. RRi_r!_ acce ted at 08:0 . 08:00 - 08:30 0.50 WHSUR P DECOMP Bring on 9.8 ppg brine to pits. Prepare to circulate diesel out of well direct to 200 bbl tank. 08:30 - 09:00 0.50 WHSUR P DECOMP RU drill site maintenance lubricator and ull BPV; LD lubricator. 09:00 - 09:30 0.50 WHSUR P DECOMP RU hoses and lines in cellar. 09:30 - 12:00 2.50 WHSUR P DECOMP RU, spot 200 bbl tank, lay hard line, test lines to 4000 psi. 12:00 - 14:00 2.00 WHSUR P DECOMP RU to take diesel direct to 200 bbl. flat tank. Lay hard lines f/rig to tank and tie in. Attempt to test OA to 1000 psi. No test, pressure began bleeding off at 830 psi at 20 gpm. SD pumps. Lost 230 psi in 18 minutes. 14:00 - 17:30 3.50 WHSUR P DECOMP Reverse 5 bbls diesel f/tubing. Swap lines over and circulate out 17 bbls diesel f/IA followed by 50 bbls Safe Surf O surfactant sweep followed w/9.8 ppg brine. Circulate until clean per mud engineer. 126 gpm, 290 psi, 394 bbls. RD lines. 17:30 - 19:30 2.00 WHSUR P DECOMP Set FMC BPV/Blankin Plu combination as TWC., 19:30 - 19:45 0.25 WHSUR P DECOMP Attempt to test IA below BPV/Blanking Plug to 2000 psi. No test. IA taking fluid at 1 bpm/210 psi. BPV/Blanking Plug held 210 psi f/below. 19:45 - 21:15 1.50 WHSUR P DECOMP PJSM. ND tree, chemical injection line, 2 SSSV control lines. 21:15 - 23:30 2.25 BOPSU P DECOMP NU BOP stack. 23:30 - 00:00 0.50 BOPSU P DECOMP RU to test BOPs. 5/12/2008 00:00 - 04:00 4.00 BOPSU P DECOMP Test BOP 250/3500 psi low/high pressure w/3.5" and 4.0" test jts. Test witnessed by BP WSL Lowell Anderson, NAD tourpusher Leonward Toussant, w/AOGCC presence at test waived by Jeff Jones. 04:00 - 04:30 0.50 BOPSU P DECOMP RD BOP test equipment and clear floor. 04:30 - 06:00 1.50 PULL P DECOMP RU floor to pull 3.5" 9.3# EU L-80 completion. RU 3.5" tubing handling equipment. RU Camco/Schlumberger spooling units. 06:00 - 00:00 18.00 PULL P DECOMP Pulling completion. Communications out, network down, loader clearing snow wiped out tower power source. No report to web. 5/13/2008 00:00 - 01:00 1.00 PULL P DECOMP RD tubing handling equipment. 01:00 - 02:00 1.00 BOPSU P DECOMP Test Bottom rams w/4" test jt. to 250/3500 psi low/high pressure . R test equipment. Install wear bushing. 02:00 - 02:30 0.50 CLEAN P DECOMP PU 7-5/8" scraper BHA. 02:30 - 05:00 2.50 CLEAN P DECOMP RIH picking up 4" HT40 drill pipe 1 x 1 to 4018'. PU 126 jts. 05:00 - 05:30 0.50 CLEAN P DECOMP RIH (/4018' to 6214' w/drill pipe stands f/derrick. 05:30 - 06:00 0.50 CLEAN P DECOMP CBU 400 gpm/1460 psi. 06:00 - 08:00 2.00 CLEAN P DECOMP Monitor well. Brine wt. 9.5 ppg. POH w/7-5/8" scraper BHA. 08:00 - 08:30 0.50 CLEAN P DECOMP LD 7-5/8" scraper BHA. 08:30 - 10:30 2.00 CLEAN P DECOMP PJSM. Spot Schlumberger wireline truck and rig up sheaves on floor. 10:30 - 13:30 3.00 EVAL P DECOMP USIT/CCL 7-5/8" casing f/6200' to surface. 13:30 - 14:30 1.00 EVAL P DECOMP Publish and evaluate logs. TOC 3430'. rnntea: tin:ti~uuu :i:VU:4U YM BP EXPLORATION Page 4 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date From - To Hours Task Code NPT Phase ~' Description of Operations 5/13/2008 14:30 - 15:00 0.50 EVAL P DECOMP PJSM. RD Schlumberger wireline unit. 15:00 - 19:00 4.00 DHB P DECOMP RIH and set EZSV CIBP on drill i e w/to of lu at 6092' 19:00 - 19:30 I 0.501 DHB I P 19:30 - 22:00 2.501 ZONISO P 22:00 - 22:45 ~ 0.75 ~ ZONISO ~ P 22:45 - 23:30 0.75 ZONISO P 23:30 - 00:00 0.50 ZONISO P 5/14/2008 00:00 - 00:30 0.50 ZONISO P 00:30 - 01:00 0.50 ZONISO P 01:00 - 02:00 1.00 ZONISO P 02:00 - 03:30 1.50 ZONISO~ P 03:30 - 04:00 0.50 BOPSU P 04:00 - 05:00 1.00 BOPSU P 05:00 - 06:00 1.00 DHB P 06:00 - 07:00 1.00 DHB P w/collar above at 6085'. PU to 6088'. RIH and tag plug. SO 20K after setting EZSV. EZSV in place. DECOMP Attem t to test 7-5/8" above EZSV. No test. Pumping into leak at 42 gpm/250 psi. Bled off to 150 psi in 5 mins. Bleed to 0 psi. DECOMP Hole out of balance flowing up drill pipe. Circulate 126 gpm, 150 psi surface to surface until 9.5 ppg in and out per mud engineer. PJSM f/cement job while circulating w/Schlumberger, WSL, all hands, mud engineer. DECOMP Test lines to 4000 psi. Start mixing 15.8 ppg G cement + additives at 22:18. Smoot balanced cement plug f/6092' to 5092:. 10 bbls H2O ahead, 45.9 bbl 15.8 ppg G cement, 4 bbls H2O behind cement. Displace w/rig pumps 43 bbls brine. 126 gpm. Drill pipe on vacuum. CIP at 22:30 hrs. DECOMP POH slowly f/6092' to 5092'. DECOMP Circulate 1/2 BU 162 gpm, 190 psi, 20 rpm, 1 K tq. SD. DECOMP Start mixing 15.8 ppg G cement + additives at 00:16. Spot balanced cement lu f/5092' to 4092'. 10 bbls H2O ahead, 45.9 bbl 15.8 ppg G cement, 4 bbls H2O behind cement. Displace w/rig pumps 33.4 bbls brine. 126 gpm. Drill pipe on vacuum. CIP at 00:30 hrs. Per Schlumberger UCA 70Bc = 4 hrs 17 min., 500 psi compressive strength = 5 hrs 35 min., 2000 psi = 10 hrs 4 min. DECOMP POH slow) (/5092' to TOC ~ 4092'. DECOMP CBU C~? 500 gpm, 1300 psi. See 1 bbl of green cement f/1st balanced plug across shakers at BU point f/1st circulation f/5092'. See 1 bbl of green cement across shakers at BU point for second circulation f/4092'. TOC at 4092'. DECOMP POH f/4092' to surface w/EZSV runnin t I; LD running tool. DECOMP Inspect BOPS, jet stack to clear all cavities of cement. DECOMP Chan a out to rams to 7-5/8" and test w/7-5/8" test 't. 250/3500 psi low/high pressure. DECOMP RU to test 7-5/8" casing f/4092' TOC to surface. Bring multistring casing cutter BHA to floor. DECOMP Test 7-5/8" casing surface to TOC at 4092', 3500 psi/30 mins Bled off 70 psi in 30 minutes. 07:00 - 08:00 1.00 CLEAN P DECOMP PU 7-5/8" casing cutting BHA and RIH to 3290'. 08:00 - 08:30 0.50 CLEAN P DECOMP Pressure up to 725 psi down drill pipe to casing cutter and move down slowly w/no rotation until knives locate casing collar at 3345'. Bleed pressure to 0. POH f/3345' and position cutter knives at 3320'. Make cut 75 r m 190gpm, 550 psi. 1-2K tq. Pressure dropped to 350 psi indicating casing cut through. SD. 08:30 - 09:30 1.00 CLEAN P DECOMP CBU x 2 w/annular BOP closed 7-5/8" x 10-3/4" annulus. 168 gpm/285 psi. 09:30 - 10:00 0.50 CLEAN P DECOMP CBU 4" drill pipe x 7-5/8" annulus. 188 gpm/285 psi. SD. Monitor well. Fluid static. 10:00 - 11:00 1.00 CLEAN P DECOMP POH w/7-5/8" casing cutting BHA (/3320' to surface and LD BHA. 11:00 - 12:00 1.00 BOPSU P DECOMP Pull wear bushing. MU packoff running tool. Back out lock down screws. Pull 7-5/8" packoff. 30K over string wt to pull Printed: 6/13/2008 3:00:40 PM ~ ~ BP EXPLORATION Page 5 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date From - To 'Hours Task Code NPT Rhase Description of Operations 5/14/2008 11:00 - 12:00 1.00 BOPSU P DECOMP packoff. LD packoff run tool. 12:00 - 13:30 1.50 CLEAN P DECOMP PU 7-5/8" spear assembly_and spear 7-5/8" casina. Pull c 13:30 - 14:00 0.50 CLEAN P 14:00 - 14:45 0.75 CLEAN P 14:45 - 15:15 0.50 CLEAN P 15:15 - 20:45 5.50 CLEAN P 20:45 - 21:30 0.75 CLEAN ~ P 21:30 - 22:30 1.00 BOPSU P 22:30 - 00:00 1.50 BOPSU P 5/15/2008 100:00 - 01:30 I 1.501 CLEAN I P 01:30 - 02:30 1.00 CLEAN P 02:30 - 03:00 0.50 CLEAN P 03:00 - 04:00 1.00 CLEAN P 04:00 - 05:00 1.00 CLEAN P 05:00 - 07:00 2.00 CLEAN P 07:00 - 07:30 I 0.501 CLEAN I P 07:30 - 08:30 1.00 CLEAN ~ P 08:30 - 09:00 0.50 BOPSU P 09:00 - 09:30 0.50 EVAL P 09:30 - 10:30 1.00 EVAL P 10:30 - 11:00 0.50 EVAL P 11:00 - 13:15 2.25 DHB P 13:15 - 14:00 0.75 DHB P 14:00-14:301 0.501 DHB IP w .Pull hanger to floor w/no problems. DECOMP RU 7-5/8" casing handling equipment. DECOMP PJSM w/WSL, toolpusher, all hands on casing handling operation. DECOMP Clean ice out of derrick. DECOMP POH and LD casing hanger, 77 jts of 7-5/8" casing and 17.58' cut stub. Average breakout tq 15K. Recovered 24 bow spring centralizers. DECOMP RD 7-5/8" casing handling equipment. DECOMP ND 7-5/8" rams CO to 3.5" x 6" v ri , DECOMP Test 3.5" x 6" rams to 250/3500 psi low/high pressure and install wear bushing. DECOMP PU 9-7/8" bit, 10-3/4" casing scraper BHA. PU 3 6-3/8" drill collars and 21 jts of 4" HWDP. DECOMP RIH w/bit and scraper ass to to of casin stub at 3320'., DECOMP PU to 3310'. CBU. 450 gpm, 295 psi. DECOMP POH (/3320' to HWDP at 732'. DECOMP Stand back HWDP, drill collars. LD 10-3/4" scraper BHA. DECOMP PU 10-3/4" RTTS test packer and RIH to 3319' to test 10-3/4" casing. DECOMP Test 10-3/4" casing surface to 3319' above RTTS. 2000 psi/3( DECOMP POH f/3319' to surface w/RTTS test packer. LD packer. DECOMP Install wear bushing w/9.92" ID. DECOMP RU Schlumberger wireline and PU CCUGR tools to evaluate and pick window exit point. DECOMP CCUGR f/3450' to 2500'. POH. DECOMP LD wireline tools and RD Schlumberger unit. DECOMP RIH w/10-3/4" EZSV CIBP to 3261'. DECOMP Circulate/reciprocate to clean casing at setting point 20 bbls, 114 gpm, 80 psi. Set EZSV w/top of plug at 3261'. SO 20K to check plug. Plug in place. PU to 3214'. DECOMP Test 10-3/4" casing 3261' to surface, 2000 psU30 mins w/chart 14:30 - 16:00 1.50 DHB P DECOMP POH w/EZSV running tool. 16:00 - 17:00 1.00 STWHIP P WEXIT RU Sperry wireline truck and Gyrodata equipment gyro/UBHO survey to orient whipstock. 17:00 - 21:00 4.00 STWHIP P WEXIT PJSM. PU whipstock BHA and surface orient whipstock face to UBHO sub. 21:00 - 21:30 0.50 STWHIP P WEXIT RIH w/whipstock BHA, three 6-3/8" drill collars and 21 jts of 4" HWDP to 815'. 21:30 - 23:45 2.25 STWHIP P WEXIT RIH f/815' to 3261'. Tag up on EZSV at 3261'. 85K PU, 85K SO. PU to 3259' to place TOW 3232', BOW 3248'. 23:45 - 00:00 0.25 STWHIP P WEXIT RIH w/Gyrodata survey tool on Sperry wireline. Tool stopped functioning at 1500'. SD. POH w/wireline. Start to troubleshoot Gyrodata equipment at 00:00. 5/16/2008 00:00 - 03:00 3.00 STWHIP N DFAL WEXIT Troubleshoot and attempt to repair Gyrodata/Halliburton gyro tool/e-line interface problems. No resolution. RD Halliburton e-line logging truck. 03:00 - 06:00 3.00 STWHIP N DFAL WEXIT Mobilize Schlumberger E-line unit. 06:00 - 07:00 1.00 STWHIP N DFAL WEXIT RU Schlumberger a-line unit to orient whipstock face. Warm Printetl: 6/13/2008 3:00:40 PM BP EXPLORATION Page 6 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date From - To ~ Hours Task Code NPT Phase i .Description of Operations __ 5/16/2008 06:00 - 07:00 1.00 STWHIP N DFAL WEXIT up gyro equipment. 07:00 - 08:00 1.00 STWHIP P WEXIT RIH w/Gyrodata tool. 08:00 - 08:30 0.50 STWHIP P WEXIT Orient whipstock face to 269 deg. per DD. 08:30 - 09:00 0.50 STWHIP P WEXIT POH w/Gyrodata tool. 09:00 - 09:30 0.50 STWHIP P WEXIT Set whipstock anchor. TOW 3232', BOW 3248'. Azimuth 269 deg. Pressure up to 3000 psi and set anchor, SO 35K to verify set. PU 35K. SO 35K. PU 45K over string wt and see mills shear off whipstock face. 09:30 - 10:30 1.00 STWHIP P WEXIT Brine to 9.0 ppg LSND mud swap. Circulate 50 bbls H2O, 50 bbls spacer, displace well f/9.5 ppg brine to 9.0 ppg LSND mud. 450 gpm, 1350 psi. Clean out shaker beds and ditches. 10:30 - 16:00 5.50 STWHIP P WEXIT Mill window. TOW 3232, BOW 3248' + OH to 3262'. 450 gpm, 05.238 1250 psi, 90 rpm, 5K tq on, 1.5K tq off. PU 85K, SO 85K. Utilized 20 bbl super sweep while milling window. 25% increase in cuttings when sweep at surface. Work window with and without rotation. Total metal recovered = 272 lbs. 16:00 - 17:00 1.00 STWHIP P WEXIT Circulate 35 bbl super sweep around, 541 bbls, 450 gpm, 1350 psi while working mills through window. 17:00 - 17:30 0.50 STWHIP P WEXIT Perform FI ,to 594 psi, 3232' MD/3232' TVD, 9.0 ppg LSND mud f/12.5___, oa EMW._ 17:30 - 19:00 1.50 STWHIP P WEXIT MW = 9.0 ppg. POH f/3230' to 187'. Monitor well. Static 19:00 - 20:30 1.50 STWHIP P WEXIT LD whipstock milling BHA #3. Window mill undergage 1/2", center mill undergage 1/4", upper watermelon mill 1/8" undergage at 9.75". 20:30 - 21:30 1.00 BOPSU P WEXIT Pull wear bushing and jet stack to remove metal cuttings. Function test BOP. Install wear bushing. 21:30 - 00:00 2.50 DRILL P INT1 PU drilling BHA #4 w/8-1/2" Hycalog DTX619M-D6 S/N 120449, XP 1.50 deg motor assy (.275 gal/rev), ARC, MWD, UBHO sub, NM stab, NM spiral DC x 2, NM stab, NM spiral DC, float/saver sub, Ball catcher, CCV, Steel lead collar, Jars, XO, 20 jts 4" HWDP. Ghost reamers 1002' and 2065' ft back. 5/17/2008 00:00 - 01:30 1.50 DRILL P INT1 RIH. Shallow test MWD and RIH f/842' to 3117'. 01:30 - 02:30 1.00 DRILL P INTi Cut and slip drilling line. Service top drive. Service rig. 02:30 - 03:00 0.50 DRILL P INTi RU Gyrodata/Sperry surveying equipment and 3/16" a-line. 03:00 - 04:30 1.50 DRILL P INT1 Run Gyrodata survey. Orient motor angle w/whipstock face. 04:30 - 05:00 0.50 DRILL P INT1 RIH to 3262'. 05:00 - 06:00 1.00 DRILL P INTi LOG 3100' down to 3230' per geo. 500 gpm, 1120 psi. Perform ECD baseline test. 06:00 - 00:00 18.00 DRILL P INT1 Drill directionally f/3262' to 5220'. Performed gyro surveys each stand to 3595'. 550 gpm, 1895 psi on, 1780 psi off, 80 rpm, 4.5K tq on, 3K tq off, PU 123K, SO 105K, ROT 107K, WOB 10K. ECD Calc = 9.55, Act = 9.99. Pumped a 35 bbl Hi Vis sweep w/Duo Vis at 4600'. Good cuttings increase when sweep at shakers. MW = 9.1 ppg. AST = 3.67 hrs, ART = 5.43 hrs, ADT = 9.1 Progress f/day = 1958'. 5/18/2008 00:00 - 06:00 6.00 DRILL P INT1 Drill directionally f/5220' to 6125'. 550 gpm, 2300 psi on, 2090 psi off, 80 rpm, 5.K tq on, 3.5K tq off, PU 140K, SO 120K, ROT 129K, WOB 10K. ECD Calculated = 9.65, Actual = 10.02. 06:00 - 12:00 6.00 DRILL P INTi Drill directionally (/6125' to 7226'. 550 gpm, 2650 psi on, 2410 psi off, 80 rpm, 8.K tq on, 6K tq off, PU 160K, SO 120K, ROT Printed: 6/13/2008 3:00:40 PM a • BP EXPLORATION Page 7 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date ~ From - To Hours II Task Code', NPT ~ Phase Description of Operations 5/18/2008 06:00 - 12:00 6.00 DRILL P INT1 130K, WOB 12K. 12:00 - 00:00 12.00 DRILL P INT1 Drill directionally f/7226' to 8565'. 555 gpm, 3220 psi on, 2960 psi off, 100 rpm, 10K tq on, 7.5K tq off, PU 182K, SO 128K, ROT 147K, WOB 14K. Calculated ECD = 9.88, Actual ECD = 10.48. Note: See increase in surface flow of 6%. Took 5 bbl influx at 21:00/8318'. Shut down, monitored well. Static. Make connection. Take 5 bbl loss, continue drilling ahead. Monitor well next connection. Static. Geo verified fault__. r~oc~cinn ar 8 }]„f~. Continue drilling w/no further incidents, losses or gains. ADT =16.76 hrs. ART = 13.61 hrs. AST = 3.15 hrs. Progress f/day = 3345'. 5/19/2008 100:00 - 06:00 I 6.001 DRILL I P 06:00 - 11:00 I 5.001 DRILL I P 11:00 - 12:00 1.00 DRILL P 12:00 - 12:15 0.251 DRILL P 12:15 - 14:00 1.751 DRILL P 14:00 - 19:30 5.501 DRILL P 19:30 - 20:00 0.50 DRILL P 20:00 - 23:00 3.00 DRILL P 23:00 - 00:00 1.00 DRILL P INTi Drill directionally f/8565' to 8630'. 555 gpm, 3695 psi on, 3650 psi off, 100 rpm, 12K tq on, 9K tq off, PU 190K, SO 135K, ROT 150K, WOB 15K. Calculated ECD = 10.68, Actual ECD = 11.09. At 02:00/8780' begin HRZ/Kingak increase in mud wt f/9.4 ppg to 10.2 ppg w/10.9 ppg LSND spike fluid. 04:00/8918' 10.2 ppg LSND in and out. INT1 Drill directionally f/8630' to 9460'. 500 gpm, 3140 psi on, 3030 psi off, 100 rpm, 10K tq on, 8K tq off, PU 205K, SO 13140K, ROT 160K, WOB 1 K. INT1 Per geo circulate for samples. 500 gpm, 3030 ps, 100 rpm, 7K tq. Reciprocate. INTi Per geo scratch and sniff one more time. Drill 9460' to 9465'. 500 gpm, 3030 psi, 100 rpm, 10K tq on, 8K tq off, PU 205K, SO 140K, ROT 160K. INT1 Per geo CBU. Per geo see glauconitic, argillac, quartzose marine sand grains. Per geo TD intermediate section at 9465' in siltstone at top of Sa River. Calculated ECD 10.69 ppg, Actual ECD 10.75 ppg prior to wiper trip. INTi Monitor well. Slight loss. MW = 10.2 ppg. POH f/9465' to 8943'. 25K overpull, swab (/8927' to 8845'. Backream (/8927' to 8845'. 450 gpm, 2500 psi, 80 rpm, 8K tq. Swab (/8768' to 8703'. 30K overpull. Backream f/8715' to 8654'. 450 gpm, 2440 psi, 80 rpm, 7K tq. Backream 8561' to 8469' and 6395' to 6159'. Swab f/4553' U4528'. Wipe tight area (/4553' t/4528' and 4270' to 4220'. W/20K overpull wipe through tight areas. Continue to POH to 3214'. INT1 Service rig, topdrive, blocks, crown. INT1 RIH f/window at 3232' to 9407'. Took 25K. Work tight area. Unable to RIH. Put pumps on the hole, 430 gpm, 2600 psi, 85 rpm. Backream and wipe tioht spot. Continue in hole to 9424'. Wash down w/ last stand. No fill on bottom. INT1 Stage pumps up slowly to 280 gpm, 1340 psi on upstroke, bring rate down to 150 gpm on downstroke, 762 psi. Experience severe loss rates w/pumps on. 200 bbl/per hr first 1/2 hr w/pumps on. As losses began immediately pumped 48 Printetl: 6/73/'LUU8 3:UU:aU rna ~ ~ BP EXPLORATION Page 8 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date From - To Hours Task ~i Code NPT Phase Description of Operations 5/19/2008 23:00 - 00:00 1.00 DRILL P INTi bbl Hi Vis sweep w/15#/bbl nut plug and 10#/bbl of Mix II. Lost 197 bbls t f rm ,Running 30 bbls/H2O. Sweep turned corner and returns increased. SD. Monitor well. Well began to flow. Gained back 75 bbls. Net losses to formation for day = 122 bbls. 5/20/2008 00:00 - 04:30 4.50 DRILL P INTi Circulate and condition mud for 7" casing run. Stage pump rates up to 455 gpm/855 psi. Condition hole until clean per mud engineer. Small pieces of shale, no splinters across shakers. Losses stopped when LCM went around bit. 04:30 - 08:30 4.00 DRILL P INTi Monitor well. MW = 10.2 ppg in and out. POH f/9465' to window at 3232'. Monitor well. Static POH to BHA at 832'. No hole problems encountered. 08:30 - 10:30 2.00 DRILL P INT1 LD HWDP and BHA #4. Function test BOP. Clear floor. 10:30 - 12:00 1.50 BOPSU P INT1 Pull wear bushing and change rams to 7". 12:00 - 13:00 1.00 BOPSU P INTi Test 7" rams to 250 psi/3500 psi low/high ressure. LD test equipment. 13:00 - 14:00 1.00 CASE P INTi PJSM w/WSL, hands, mud man. RU casing handling equipment to run 7" 26#, L-80, BTClTCII casing running. 14:00 - 19:00 5.00 CASE P INT1 MU and Bakerlock shoe track. Check floats. Good. RIH w/BTC section torquing to average f/10 jt test of 7800 fUlbs. RIH f/surface to window at 3232'. PU 100K, SO 100K. 19:00 - 20:00 1.00 CASE P INT1 CBU x 1.5. stage up slowly to 5 bpm. 2bpm/175 psi, 3 bpm/190 psi, 4 bpm/206 psi, 4.5 bpm/245 psi, 5 bpm/290 psi. No losses. 20:00 - 00:00 4.00 CASE P INT1 RIH f/3232' to 4171'. MU BTC pin x TCII XO. RIH f/4171' to 5613' w/TCII 7" 26# L-80 w/torqueturn, stabbing guide, optimum torque 10100 ft/Ibs. PU 155k, SO 125K. Matching broomstick weight prognosis consistently at .4 friction factor both up and down weights to this depth. RIH at 40'/min to 25' min. 27 bbls fluid lost to formation since coming out of shoe and RIH 3232' to 5613'. 5/21/2008 00:00 - 05:30 5.50 CASE P INTi RIH f/5613' to 9430'. Vary running speeds f/25'/min to 40'/min. Losses increase ro ortionatel slow back to 25' ' 05:30 - 06:30 1.00 CASE P INT1 Wash and work pipe to get last last stand down f/9430' to intermediate hole TD at 9465' w/Franks tool. 1.5 bpm 585 psi. Had difficulty working pipe past 9461' to 9465. PU f/9465' to 9464'. Ran a total of 232 jts of 7" 261b L-80 casing. (117 jts of BTC-M on bottom, XO pup jt, 2 TC I I pup jts, & 115 jts of TCII ) 1 centralizer each on jt # 1,3,5,7,and jts 9 through 130 including 1 centralizer on 20' XO pup jt. 127 centalizers total. 06:30 - 07:30 1.00 CEMT P INT1 LD Franks tool and RU 7" cementing/plug dropping head. 07:30 - 08:30 1.00 CEMT P INT1 Circulate staging pumps up to 5 bpm. 1 bpm/380 psi, 2 bpm 430 psi, 3 bpm 490 psi, 4 bpm 560 psi, 5 bpm 645 psi. Fluid losses running pipe f/window at 3232' to TD at 9465' and during circulation prior to cementing = 144 bbls. 08:30 - 09:00 0.50 CEMT P INTi Circulate 1 bpm 370 psi. PJSM w/WSL, hands, Dowell Schlumber er. Batch mix cement. 09:00 - 11:00 2.00 CEMT P INT1 Pump 5 bbls H2O ahead to Tee on floor. Test lines to 4000 psi. Check lines. Bring mud push to floor taking returns out Tee and into pits via flow line. Pump 50 bbls 11.0 ppg Mudpush II downhole and drop bottom plug, see indicator trip. Pump 134 bbls 11.5 ppg Crete Lite cement. Pump 34 bbls of 15.8 ppg G cement + additives. Mud Push II, Lead and Tail all Printed: 6/13/2008 3:00:40 PM ~ ~ BP EXPLORATION Page 9 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date ~, From - To Hours Task ;Code NPT Phase Description of Operations 5/21/2008 09:00 - 11:00 2.00 CEMT P INTi had 2#/bbl Cem Net. Drop top plug, see indicator trip. Pump 10 bbls of displacement H2O w/Schlumberger to clear lines. SD Schlumberger. Switch to rig pumps. Pump and bump plugs w/347 bbls of 10.2 ppg LSND mud displacement w/rig pumps. CIP at 11:05. FCP = 833 at plug bump. Lost 104 bbls fluid to formation during cementing/displacement. 11:00 - 20:00 9.00 CEMT P INT1 Wait on cement to achieve 50 psi. Pumping 1 bbl of 10.2 ppg LSND mud down 7" x 10-3/4" annulus every half hour f/11:30 to 18:00. 1 bpm 600 psi. At 18:00 cement compressive strength = 50 psi per Schlumberger UCA. Pump 15 bbls 10.2 ppg mud at 18:00. 405 psi, 710 psi. Bleed pressure to 0 and monitor. No flow. Monitor for 1 hr 18:00 to 19:00. No flow. 20:00 - 22:00 2.00 BOPSU P INTi PJSM. ND BOP stack. Pick stack up 3'. Pull over string wt f/153000 to 260000. Install casing slips. SO to 228000 (75000 over string weight) landed on slips. Cut 32.45' casing stub off w/Wachs cutter leaving next collar below slips/base flange 9.73'. Install new 7" packoff. 22:00 - 00:00 2.00 BOPSU P INT1 PJSM. NU BOP. Test pack off 3500 psi f/30 mins. Change out„pipe rams f/7" to 3.5" x 6" variables. . 5/22/2008 00:00 - 05:00 5.00 BOPSU P INTi BOP test 250/3500 psi low/high pressure. Test witnessed by Dave Piper NAD tourpusher, Lowell Anderson BP WSL. AOGCC rep Bob Noble waived AOGCC attendance at the test. Pumping 172 bbls 10.2 Pp9 LSND drilling mud down 7" x 10-3/4" annulus off the critical path, 2 bpm/665 psi. 05:00 - 05:30 0.50 BOPSU P INT1 RD test equipment and clear floor. RU Hot Oil Services and test lines to 3500 psi. Off the critical path pump 107 bbls 50 deg F diesel freeze protect fluid down 7" x 10-3/4" annulus. 05:30 - 06:00 0.50 CEMT P INTi All cement 1000 psi compressive strength per Schlumberger UCA. Test 7" casing f/float collar at 9380' to surface to 3500, si and hold f/30 mins w/chart. 06:00 - 07:30 1.50 DRILL P PROD1 PU BHA #5. 1.5 deg motor assy w/6-1/8" Hughes MXRi8DX w/3-14s. 07:30 - 10:00 2.50 DRILL P PROD1 RIH f/248' to 3591' picking up 105 jts of 4" HT40 drill pipe 1 x 1. 10:00 - 12:00 2.00 DRILL P PROD1 RIH w/drillpipe f/derrick f/3591' to 7889'. 12:00 - 13:00 1.00 DRILL P PROD1 Cut and slip 102' of drilling line. Service topdrive, crown, blocks. 13:00 - 13:30 0.50 DRILL P PROD1 Perform stripping drill w/all hands. 13:30 - 14:00 0.50 DRILL P PROD1 RIH f/7889' to cement strin ers/ lu s/float collar at 9376'. 14:00 - 15:00 1.00 DRILL P PROD1 Drill f/9376' to 9460' at 220 gem, 1490 psi, 30 rpm, 8Ktq, PU 195K, SO 120K, ROT 135K. 15:00 - 16:30 1.50 DRILL P PROD1 Displace 10.2 #LSND mud system w/8.4 peg FloPro SF. Pump 100 bbls fresh H2O spacer, 50 bbls HiVis spacer, 308 bbls 8.4 Peg FloPro. 16:30 - 17:00 0.50 DRILL P PROD1 Drill through shoe at 9465' and drill new hole to 9485'. 30 rpm, 4K tq off, 4.5 K tq on, 230 gem, 1400 psi off, 1460 psi on. PU 170K, SO 140K, ROT 135K. 17:00 - 17:30 0.50 DRILL P PROD1 CBU 215 bbls/235 gem/1420 psi. 17:30 - 18:00 0.50 DRILL P PROD1 Pull back inside shoe and FIT to 686 si/10.0 w/8.4 Peg mud at 9465' MD/8243' TVD. 18:00 - 00:00 6.00 DRILL P PROD1 RIH to 9485' and drill to 9705'. MW = 8.4 peg, PU 173K, SO 140K, ROT 137K, 240 9em, 1650 psi off, 60 rpm, 5K tq on, 4K tq off. Printetl: 6/13/2008 3:00:40 F'M ~ ~ BP EXPLORATION Page 10 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date From - To ;Hours Task Code NPT Phase ~, Description of Operations 5/22/2008 18:00 - 00:00 6.00 DRILL P PROD1 ADT = 2.19 hrs, AST = .52 hrs, ART = 1.6 hrs. Progress f/day = 220'. 5/23/2008 00:00 - 02:00 2.00 DRILL P PROD1 Drill/slide directionally (/9705' to 9801'. MW = 8.4 ppg, PU 178K, SO 143K, ROT 141 K, 240 gpm, 1675 psi off, 1720 psi on, 60 rpm, 5K tq on, 4K tq off. 02:00 - 06:00 4.00 DRILL P PROD1 POH f/9801' to shoe at 9464' w/no problems. Drop ball to CCV and open at 2150 psi. Pump dry job and blow down. POH to BHA at 248'. Drop ball to CCV. 06:00 - 07:00 1.00 DRILL P PROD1 Close CCV. 1650 psi. LD BHA #5. Bit 1/16 undergauge. 07:00 - 08:30 1.50 DRILL P PRODi PJSM w/Schlumberger for nuke handling. PU drilling BHA # 6. Hughes MXRI8DX w/5-11s S/N 5146091, 2..12 degree motor assy. Impulse MWD, ADN. 08:30 - 12:00 3.50 DRILL P PROD1 RIH w/drillpipe f/272' to 9801'. Shallow test MWD 240 gpm, 830 psi at 1228'. Continue to RIH to 9760' and wash down to 9801'. No fill on bottom. 12:00 - 18:30 6.50 DRILL P PROD1 Drill/slide (/9801' to 10207'. 245 gpm, 1765 psi on, 1490 psi off, PU 195K, SO 130K. ADT = 5.72 hrs, ART = .6, AST = 5.12 Progress f/day = 502' 18:30 - 23:30 5.00 DRILL P PROD1 MADPass at 150'/ hr, 248 gpm, 1426 psi, f/10207' to 9921'. MADPass at 300'/hr 9921' to 9462' 248 gpm, 1425 psi. 23:30 - 00:00 0.50 DRILL P PROD1 Monitor well. Drop CCV opening ball and function CCV at 2000 psi. Pump dry job. BD top drive. 5/24/2008 00:00 - 03:00 3.00 DRILL P PRODi POOH from 9462' MD to 273' MD. Drop ball to close CCV valve with 1600 psi at 750' MD. 03:00 - 05:00 2.00 DRILL P PROD1 Rack back drilling jars, and collars. PJSM w/Schlumberger on nuke handling. Lay down nukes and remaining BHA. Bit graded 1-2-ER-G-E-I-WT-BHA. 05:00 - 05:30 0.50 DRILL P PROD1 Service the top drive and drawworks. 05:30 - 06:30 1.00 DRILL P PROD1 Make up 6-1/8" production hole BHA with PDC bit and 1.83 degree bent housing motor. RIH to 256' 06:30 - 10:30 4.00 DRILL P PROD1 Continue to RIH with 6-1/8" drilling assembly to 10,190' MD. Shallow hole test the MWD tool at 1100' MD. 10:30 - 00:00 13.50 DRILL P PROD1 MU to top drive, RIH and tag bottom at 10,207' MD. Drill from 10,207' MD to 10,450' MD. 245 gpm, 1640 psi on, 1490 psi off, RPM 40, TO on 6.5K, TO off 5K, PU 190K, SO 130K, ROT 152K. Actual Slide Time = 6.62 hrs, Actual Rotate Time = 1.88, Total Drilling Time = 8.5 hrs. Slow pump rates taken at 10,433' MD, 8798' TVD. Mud weight = 8.5 ppg. 53 bbls lost to formation. 20 bbl per hour loss rate at 00:00 hrs while drillin fault reae 5/25/2008 00:00 - 12:00 12.00 DRILL P PROD1 Continue to drill 6.125" production hole from 10,450' to 10,843' MD. 240 gpm, 1617 psi on, 1502 psi off, 7K TO on, 5K TO off, 40 RPM, SO 125K, PU 183K, ROT 150K Slide Time = 5.88 hrs, Rotate Time = 3.13 hrs, Total Drill Time Nrinted: tiii~rzuuas:uu:au rm ~ ~ BP EXPLORATION Page 11 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1 /2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES Date From - To ~!~ Hours Task Code NPT Phase Description of Operations 5/25/2008 00:00 - 12:00 12.00 DRILL P PROD1 = 9.01 hrs. Slow pump rates taken at 10,764' MD. Total losses to well bore over 12 hrs = 153 bbls Mud weight = 8.6 ppg 12:00 - 00:00 12.00 DRILL P PROD1 Continue to drill 6.125" production hole from 10,843' to 11,128' MD. WOB 10K, 247 gpm, 1675 psi on, 1560 psi off, 7K TO on, 5.5K TO off, SO 135K, PU 195K, ROT 150K Slide Time = 6.25 hrs, Rotate Time = 1.33 hrs, Total Drill Time = 7.58 hrs. Slow pump rates taken at 10,099' MD. Total losses to well bore over 12 hrs = 180 bbl Added 580 bbls of clean 8.4 ppg Flo-Pro to mud system. Mud weight = 8.4 ppg 5/26/2008 00:00 - 12:00 12.00 DRILL P PROD1 Continue to drill 6.125" production hole from 11,128' to 11,673' MD. WOB 10K, 245 gpm, 1864 psi on, 1684 psi off, 8K TO on, 5.5K TO off, 40 RPM, SO 123K, PU 195K, ROT 150K Slide Time = 8.1 hrs, Rotate Time = 1.28 hrs, Total Drill Time = 9.38 hrs. Slow pump rates taken at 11,529' MD. Mud weight = 8.4 ppg 12:00 - 23:00 11.00 DRILL P PRODi Continue to drill 6.125" production hole from 11,673' to 12,340' MD. WOB 10K, 247 gpm, 1867 psi on, 1675 psi off, 9K TO on, 6.5K TO off, 40 RPM, SO 120K, PU 195K, ROT 148K Slide Time = 3.27 hrs, Rotate Time = 4.45 hrs, Total Drill Time = 7.72 hrs. Slow pump rates taken at 12,340' MD. Mud weight = 8.5 ppg Well still takin 15 bbls er hour. , TD called by geologist at 12,340' MD. ~ 23:00 - 00:00 1.00 DRILL P PROD1 Circulate bottoms up at 12,340' MD. Rotate and reciprocate the pipe. 280 bbls pumped, 245 gpm, 1615 psi, 40 RPM, 6K TO. Trouble shoot incorrect surveys over last 60 feet while circulating bottoms up. 5/27/2008 00:00 - 00:30 0.00 DRILL P PRODi Finish circulating bottoms up. 245 gpm, 1615 psi, 40 RPM, 6K TO. 00:30 - 05:00 4.50 DRILL P PROD1 Pump out of hole to 11,978' MD. 247 gpm, 1615 psi, PU 190K, SO 120K. Tight spot with 25K overpulls. Backream from 11,978' to 7" shoe at 9464' MD. 40 RPM, 8.5K TO, 247 gpm 1645 psi, ROT 152K. 05:00 - 05:30 0.50 DRILL P PROD1 Service the rig and top drive. 05:30 - 07:00 1.50 DRILL P PROD1 Run back in hole to TD at 12,340' MD. PU 195K, SO 125K. 07:00 - 08:30 1.50 DRILL P PROD1 Circulate a High Vis sweep at 12,340' MD while rotating and reciprocating pipe. 242 gpm, 1650 psi, PU 195K, SO 125K, ROT 150K, 40 RPM. Spot an 8.4 ppg clean Flo-Pro liner running pill after sweep Nriniea: on sizuus J:UU:4U YM ! • BP EXPLORATION Page 12 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABOBS 7ES Rig Number: 7ES i Date From - To Hours Task ;Code NPT Phase Description of Operations 5/27/2008 5/28/2008 07:00 - 08:30 1.50 DRILL P 08:30 - 10:00 1.50 DRILL P 10:00 - 11:00 I 1.001 DRILL I P 11:00 - 14:30 I 3.501 DRILL I P 14:30 - 15:30 I 1.001 DRILL I P 15:30 - 16:30 i 1.00 ~ CASE ~ P 16:30 - 21:30 I 5.001 CASE I P 21:30 - 22:00 0.501 CASE ~ P 22:00 - 00:00 I 2.001 CASE I P 00:00 - 00:30 0.50 CASE P 00:30 - 01:30 1.00 CASE P 01:30 - 04:30 3.00 CASE P 04:30 - 05:30 I 1.001 CEMT I P PROD1 returned. PROD1 POOH inside 7" liner shoe at 9462' MD on elevators. PU 190K, SO 130K. No overpulls. PROD1 Drop ball and open CCV. Circulate bottoms up at 7" shoe. 450 gpm, 1470 psi. Monitor the well. Pump a dry job. PROD1 POOH from 9642' to 256' MD. Recover 2" rabbit. Drop ball and close CCV. Monitor well: static. PROD1 Lay down 6.125" drilling BHA including: 6.125" PDC bit, 1.83 degree motor, DIR/GR/RES, CCV, Collars, Jars and HW drill pipe. Bit graded: 1-1-CT-G-X-I-ER-TD. Clear and clean the rig floor. RUNPRD PJSM with Nabors Casing Hand and rig crew. RUNPRD Make up 4.5" float equipment. Check floats. Run 77 joints of 4.5", 12.6#, L-80, IBT-M liner to 3040'. One centralizer per joint on joints #1-73. Make up and run 5" x 7" Baker Flex-Lock liner hanger and "HRD" ZXP packer. Make up "HR" running tool. Mix gel and let it set up in space between running tool and hanger/packer. RUNPRD Pick up one stand of drill pipe and RIH. Circulate 1-1/2 liner volumes (69 bbls) at 5 bpm. 290 psi, PU 60K, SO 60K. RUNPRD RIH with 4.5" liner on 4" drill pipe to 6871' MD. Fill drill pipe every 20 stands. ~ otal losses to weuwre ror c4 nrs = i ac uuis. . RUNPRD Continue to RIH with 4.5" liner to 7" shoe. PU 155K, SO 105K. RUNPRD Circulate 1.5 liner + drill pipe volumes at the 7" shoe. 5 bpm, 670 psi. RUNPRD RIH into open hole with 4.5", 12.6#, L-80, IBT-M liner to TD at 12,340' MD. Took up to 25K under slack off weight on last 3 drill pipe stands. PU 190K, SO 115K @ 12,340' MD RUNPRD RU Liner cement head. Circulate 3 open hole volumes staging pumps up from 2 bpm to 5 bpm. 620 psi ~ 2 bpm. 680 psi ~ 3 bpm 880 psi ~ 4 bpm 1020 psi ~ 5 bpm Printed: 6/13/2008 3:00:40 PM BP EXPLORATION Page 13 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABORS 7ES Rig Number: 7ES Date '~ From - To Hours Task Code ~ NPT Phase 5/28/2008 04:30 - 05:30 1.00 CEMT P RUNPRD 05:30 - 10:30 5.001 CEMT ~ P 10:30 - 12:00 1.50 CASE P 12:00 - 13:00 1.00 CASE P 13:00 - 16:00 3.00 CASE P 16:00 - 17:30 1.50 CASE P 17:30 - 18:30 1.00 CASE P 18:30 - 20:30 2.00 PERFO P 20:30 - 22:30 2.00 PERFO P 22:30 - 00:00 1.50 PERFO P 15/29/2008 100:00 - 02:30 I 2.501 PERFOBI P RUNPRD RUNPRD RUNPRD RUNPRD RUNPRD RUNPRD OTHCMP OTHCMP OTHCMP OTHCMP Description of Operations PJSM with SLB cement hands, rig crew, and CH2MHill/Peak drivers. Pressure test cement lines to 4000 psi. Start pumping 30 bbls of mud push at 5 bpm followed by 76 bbls of 15.8 ppg class G cement at 3.8 bpm. Switch to rig pumps for displacement. Drop drill pipe dart and displace cement with 60 bbl pert pill followed by 78 bbls of 8.5 ppg drilling mud. Displace at 5 bpm, 970 psi. Slow pumps to 3 bpm 100 stokes before plug latch. 2100 psi pressure spike at plug latch. Bring pumps back up to 5 bpm and continue displacement. Reduce rate to 4 bpm shortly after cement turned corner to keep pressure below 1500 psi. Sto,,,~ reciprocation 400 strokes prior to plug bump due to reducing slack off weights. Slow pumps to 3 bpm 100 strokes prior to plug bump. Bump plug on calculated strokes. Held 3000 psi. Slack off 50K. Bleed pressure to check floats. Floats holding. Pressure up to 3000 psi to release HR running tool and SO 50K. PU to 210K. Not released from liner, bleed pressure. Pressure up to 4000 psi, SO to 50K, PU to 225K. Hanger not released. Repeat 3 times with out success. Attempt to release mechanically. Turn pipe to left 1.75 turns and work pipe. PU 210K, not released. Add 2 additional turns and work pipe. PU to 190K. Running tool released from hanger. Rotate pipe slowly and set down 40K on liner top to set packer. Indication packer set on weight indicator. Set down second time to confirm set with another violent jump on the weight indicator. Mark a no-go line. Pressure up to 1000 psi and pull running tool from liner, bringing pumps up to 400 gpm, 1250 psi. Pick up 44 feet and circulate out excess cement. 25 bbls of excess cement dumped. Swap well to 8.5 ppg seawater at 500 gpm, 2400 psi. Trip out of hole from 9265' to 7162' MD. Slip and cut 125' of drilling line. Service top drive, blocks and crown. Inspect drawworks. Continue to pull out of hole racking back 100 stands and laying down 2578' of 4" drill pipe. LD HR running tool. Dog Sub did not shear. PJSM. Pull wear ring RU and test lower rams with 2-7/8" test joint to 250 psi low, 3500 psi high. RD test equipment and replace wear ring. Pressure test 4.5" liner and liner top packer to 3500 psi and__ Good test. PJSM with SLB. Pick up 62 joints of 2-7/8", TCP guns. 6 SPF, 60 degree phasing, Powerjet Omega charges. Pick up and RIH with 56 joints of 2-7/8" Fox drill pipe. RIH with perforation guns on 4" drill pipe from derrick to 7462' MD. PU 105K, SO 95K. Continue to RIH with perforation guns and Tag up on depth at Printetl: 6/13/2008 3:00:40 PM BP EXPLORATION Page 14 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Spud Date: 5/17/2008 Event Name: REENTER+COMPLETE Start: 5/1/2008 End: 5/30/2008 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 5/31/2008 Rig Name: NABORS 7ES Rig Number: 7ES Date ~ From - To Hours. I!, Task Code NPT ', Phase Description of Operations 5/29/2008 00:00 - 02:30 2.50 PERFO P OTHCMP landing collar at 12,259' MD. Rack back 5 stands to place guns on depth. PU 185K, SO 125K. 02:30 - 03:00 0.50 PERFO P OTHCMP PJSM with SLB. Close oioe rams and initiate firing sequence. Lost 5 bbls after guns fired. 03:00 - 03:30 0.50 PERFO P OTHCMP POOH above top perforation at 10,550' MD. Monitor well: Well taking 10 bbls an hour. 03:30 - 11:30 8.00 PERFO P OTHCMP POOH laying down 4" drill pipe to 3068' MD. RIH with 24 stands from the derrick. Continue to POOH laying down drill pipe. Total of 300 joints laid down. 11:30 - 18:00 6.50 PERFO P OTHCMP Change out handling equipment for 2-7/8" Fox drill pipe. Continue to POOH laying down 56 joints of 2-7/8" Fox drill pipe to 1312' MD. Rig down handling equipment and rig up handling equipment for 2-7/8" perforation guns. Lay down 62 perforation guns and rig down. 18:00 - 20:00 I 2.001 RU 20:00 - 00:00 I 4.00 5/30/2008 00:00 - 09:00 9.00 09:00 - 10:30 ~ 1.50 ~ RUN All ertorations fired on degy~,,. 970' at 6 SPF and 60 degree phasing using Powerjet Omega charges. INTERVALS: 10,550' - 10,810' MD 11,120' - 11,830' MD RUNCMP PJSM with hands. Pull the wear ring. Make a dummy run with the tubing hanger. Change to long bails. Rig up Compensator. Rig up Torque Turn equipment. RUNCMP PJSM. MU and RIH with 4.5", 12.6#, 13Cr-80, Vam Top tubing tail pipe including: WLEG, XN Nipple, X Nipple, Baker 4.5"x7" S-3 Packer, X Nipple, 2 GLM's, X Nipple. Torque turn each connection to 4440 ft-Ibs (optimal torque) Bakerlok all connections below packer. RIH to 3200' MD at end of tour. 1 bbl/hr loss rate to formation. RUNCMP Continue to RIH with 4.5", 12.6#, 13Cr-80, Vam Top Completion. Tag up inside 4.5" liner tieback receptacle. Space out tubing and land hanger. Run in lock down screws. Bottom of WLEG at 9307' MD. RUN irculate the wellbore to clean seawater and dump dirty returns to cuttings tank. Reverse circulate 171 bbls of corrosion inhibited brine into 7"x4.5" annulus. 3 bpm, 200 psi. ranted: tinsizuuts ~:uu:aurm ~ ~ BP EXPLORATION Page 15 of 15 Operations Summary Report Legal Well Name: 05-23 Common Well Name: 05-23 Event Name: REENTER+COMPLETE Contractor Name: NABOBS ALASKA DRILLING I Rig Name: NABOBS 7ES Start: 5/1 /2008 Rig Release: 5/31/2008 Rig Number: 7ES Spud Date: 5/17/2008 End: 5/30/2008 Date From - To ~ Hours Task Code NPT Phase Description of Operations 5/30/2008 10:30 - 12:00 1.50 RUNC01~1P RUNCMP Drop the ball and rod to the RHC-M no shear in the XN Nipple. Pressure up to 3500 psi setting the Baker S-3 production 2:00 - 13:00 .00 OPSU P UNCMP Bleed to 1500 psi and pressure up I.A. to 3500 psi. Hold for 30 minutes and chart. Good test. Bleed I.A. to zero followed by tubing. Pressure up the I.A. to 2700 psi to shear the DCK shear valve in GLM #1. Pump both ways to verify DCK valve sheared. Install TWC and test from below to 1000 si for 5 minutes. 13:00 - 14:00 1.00 BOPSU P RUNCMP Nipple down the BOPE. 14:00 - 17:00 3.00 WHSUR P RUNCMP Nipple up the tree. Test the adaptor and tubing hanger packoff seals to 5000 psi for 30 minutes. Test the tree with diesel to 5000 psi. 17:00 - 18:00 1.00 WHSUR P RUNCMP Rig up lubricator and test to 1000 psi. Pull the TWC. 18:00 - 20:30 2.50 WHSUR P RUNCMP Rig up Little Red Hot Oil to I.A. Test lines to 1500 psi. Pump 75 bbls of diesel freeze protect down the 7"x4.5" annulus through shear valve at 5 bpm, 500 psi U-tube diesel from I.A. to tubing (2200' freeze protected). 20:30 - 22:30 2.00 WHSUR P RUNCMP Install lubricator and test to 1000 psi. Set BPV and test from below to 1000 psi. 22:30 - 00:00 1.50 WHSUR P RUNCMP Secure the well. Blow down circulating lines. Install valves and flanges on annulus valves and tree. Release rig from 05-23B C~ 24:00 hrs on 05/30/2008. rnntea: on~izuua suu:vu rm by ---- --- - - Schlumbe~~~e~ u~u5-«~ purvey nepvri Report Date: 27-May-08 Survey /DLS Computation Method: Minimum Curvature / Lubinski Client: BP Exploration Alaska Vertical Section Azimuth: 353.000° Field: Prudhoe Bay Unit - EOA Vertical Section Origin: N 0.000 ft, E 0.000 ft Structure /Slot: DS-OS / 05.23 TVD Reference Datum: Rotary Table Well: 05-23 TVD Reference Elevation: 62.68 ft relative to MSL Borehole: 05-236 Sea Bed /Ground Level Elevation: 34.50 ft relative to MSL UWI/API#: 500292196302 Magnetic Declination: 23.349° Survey Name /Date: 05-23B /May 27, 2008 Total Field Strength: 57681.918 nT Tort /AHD / DDI / ERD ratio: 372.507° / 6151.79 ft / 6.507 / 0.698 Magnetic Dip: 80.933° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: May 22, 2008 Location LaVLong: N 70.26709147, W 148.40674200 Magnetic Declination Model: BGGM 2007 Location Grid NIE V/X: N 5949821.450 ftUS, E 697021.860 ftUS North Reference: True North Grid Convergence Angle: +1.49974092° Total Corr Mag North -> True North: +23.349° Grid Scale Factor: 0.99994410 Local Coordinates Referenced Ta: Well Head Comments Measured Inclination Azimuth Suh.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 tt ft de 00 tt ftUS ftUS Pro]ectetl-Up o. uu u.uu V. VV -bZ.b25 U.W V.VV V.VV V.w u.vV v.VV ~.w a~Yaocl.yo oo/VCl.oo Iv /V. co/Valy/ vv IYO. YVV/YGVV WRP 28. 68 0.00 0. 00 -34.00 28.68 0.00 0.00 0.00 0.00 0.00 0.00 5949821. 45 697021. 86 N 70. 26709147 W 148. 40674200 GCT MS 34. 68 0.58 225. 74 -28.00 34.68 -0.02 0.03 0.03 -0.02 -0.02 9.67 5949821. 43 697021. 84 N 70. 26709141 W 148. 40674217 44. 78 0.32 213. 33 -17.90 44.78 -0.07 0.11 0.11 -0.08 -0.07 2.73 5949821. 37 697021. 79 N 70. 26709125 W 148. 40674260 54. 98 0.22 206. 51 -7.70 54.98 -0.11 0.16 0.16 -0.12 -0.10 1.03 5949821. 33 697021. 76 N 70. 26709114 W 148. 40674279 67. 78 0.25 208. 29 5.10 67.78 -0.15 0.21 0.21 -0.17 -0.12 0.24 5949821. 28 697021. 74 N 70. 26709101 W 148. 40674299 81. 58 0.27 207. 52 18.90 81.58 -0.20 0.27 0.27 -0.22 -0.15 0.15 5949821. 22 697021. 71 N 70. 26709086 W 148. 40674322 95. 48 0.25 204. 77 32.80 95.48 -0.26 0.34 0.33 -0.28 -0.18 0.17 5949821. 17 697021. 69 N 70. 26709071 W 148. 40674345 109. 38 0.23 203. 01 46.70 109.38 -0.31 0.39 0.39 -0.33 -0.20 0.15 5949821. 11 697021. 67 N 70. 26709056 W 148. 40674364 123. 38 0.23 204. 07 60.70 123.38 -0.35 0.45 0.45 -0.39 -0.23 0.03 5949821. 06 697021 .64 N 70. 26709042 W 148. 40674382 137. 38 0.22 207 .39 74.70 137.38 -0.40 0.50 0.50 -0.43 -0.25 0.12 5949821. 01 697021 .62 N 70 .26709028 W 148. 40674 150. 78 0.22 209 .04 88.10 150.78 -0.44 0.56 0.55 -0.48 -0.27 0.05 5949820. 96 697021 .60 N 70 .26709016 W 148. 4067 164. 98 0.20 208 .41 102.30 164.98 -0.49 0.61 0.60 -0.53 -0.30 0.14 5949820. 92 697021 .58 N 70 .26709004 W 148. 406744 179. 28 0.18 211 .63 116.60 179.28 -0.52 0.66 0.65 -0.57 -0.32 0.16 5949820. 88 697021 .55 N 70 .26708992 W 148. 40674461 193. 68 0.17 222 .77 131.00 193.68 -0.55 0.70 0.70 -0.60 -0.35 0.25 5949820. 84 697021 .53 N 70 .26708983 W 148. 40674482 208 .08 0.17 233 .31 145.40 208.08 -0.58 0.74 0.74 -0.63 -0.38 0.22 5949820. 81 697021 .50 N 70 .26708975 W 148. 40674507 222 .58 0.17 238 .40 159.90 222.58 -0.60 0.79 0.78 -0.65 -0.42 0.10 5949820 .79 697021 .46 N 70 .26708968 W 148. 40674536 237 .18 0.20 242 .59 174.50 237.18 -0.62 0.83 0.82 -0.68 -0.46 0.23 5949820 .76 697021 .42 N 70 .26708962 W 148. 40674569 251 .68 0.22 246 .74 189.00 251.68 -0.63 0.89 0.86 -0.70 -0.51 0.17 5949820 .74 697021 .37 N 70 .26708956 W 148. 40674608 266 .28 0.22 250 .08 203.60 266.28 -0.65 0.94 0.91 -0.72 -0.56 0.09 5949820 .72 697021 .32 N 70 .26708950 W 148. 40674650 280 .78 0.23 250 .49 218.10 280.78 -0.66 1.00 0.96 -0.74 -0.61 0.07 5949820 .69 697021 .27 N 70 .26708945 W 148. 40674694 295 .38 0.27 248 .82 232.70 295.38 -0.67 1.06 1.01 -0.76 -0.67 0.28 5949820 .67 697021 .21 N 70 .26708939 W 148. 40674742 309 .88 0.30 246 .73 247.20 309.88 -0.69 1.13 1.08 -0.79 -0.74 0.22 5949820 .64 697021 .14 N 70 .26708931 W 148 .40674796 SurveyEditor Ver SP 2.1 Bld( doc4Ox_1OO) 05-23\05-23\05-23B\05-236 Generated 6/25/2008 11:27 AM Page 1 of 10 Comments Measured Inclination Azimuth Subsea TVD 7VD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 00 ft ftUS ftUS 3G4. 4tS U.JZ Z4/. Jl Zbl.tSV 3Z4.4t5 -V./Z I.LI i.iv -v.oc -v.oi v.i4 a~Y~ocV.vi v~/vc i.v/ i~ /V.GV/V0.7GJ vV IYO. YVV/YOVO 339. 08 0.32 248. 57 276.40 339.08 -0.74 1.29 1.23 -0.85 -0.89 0.05 5949820.58 697021.00 N 70.26708915 W 148. 40674916 353. 68 0.33 246. 85 291.00 353.68 -0.76 1.38 1.31 -0.88 -0.96 0.10 5949820.54 697020.92 N 70.26708906 W 148. 40674978 368. 18 0.35 245. 10 305.50 368.18 -0.78 1.46 1.39 -0.92 -1.04 0.16 5949820.51 697020.84 N 70.26708897 W 148. 40675041 382. 68 0.35 243. 62 320.00 382.68 -0.81 1.55 1.47 -0.96 -1.12 0.06 5949820.47 697020.76 N 70.26708886 W 148. 40675106 397. 28 0.35 240. 99 334.60 397.28 -0.84 1.64 1.56 -1.00 -1.20 0.11 5949820.42 697020.69 N 70.26708875 W 148. 40675170 411. 78 0.38 239. 74 349.10 411.78 -0.88 1.73 1.65 -1.04 -1.28 0.21 5949820.37 697020.61 N 70.26708862 W 148. 40675235 426. 28 0.40 238. 42 363.60 426.28 -0.92 1.83 1.75 -1.09 -1.36 0.15 5949820.32 697020.52 N 70.26708848 W 148. 40675303 440. 88 0.38 237. 21 378.20 440.88 -0.96 1.93 1.85 -1.15 -1.45 0.15 5949820.27 697020.44 N 70.26708834 W 148. 40675371 455. 28 0.38 237. 95 392.59 455.27 -1.00 2.03 1.94 -1.20 -1.53 0.03 5949820.21 697020.36 N 70.26708820 W 148. 40675436 469. 58 0.37 237. 22 406.89 469.57 -1.04 2.12 2.04 -1.25 -1.61 0.08 5949820.16 697020.29 N 70.26708806 W 148. 406 483. 88 0.40 234. 84 421.19 483.87 -1.09 2.22 2.13 -1.30 -1.69 0.24 5949820.11 697020.21 N 70.26708792 W 148. 7 4067 498. 18 0.42 234. 82 435.49 498.17 -1.13 2.32 2.23 -1.36 -1.77 0.14 5949820.04 697020.12 N 70.26708775 W 148. 40675632 512. 88 0.40 235. 28 450.19 512.87 -1.18 2.42 2.34 -1.42 -1.86 0.14 5949819.98 697020.04 N 70.26708759 W 148. 40675702 528. 78 0.42 234. 72 466.09 528.77 -1.24 2.54 2.45 -1.49 -1.95 0.13 5949819.91 697019.95 N 70.26708741 W 148. 40675777 544. 58 0.45 234. 51 481.89 544.57 -1.29 2.66 2.57 -1.56 -2.05 0.19 5949819.84 697019.85 N 70.26708722 W 148. 40675856 560. 48 0.47 234. 49 497.79 560.47 -1.35 2.79 2.70 -1.63 -2.15 0.13 5949819.76 697019.75 N 70.26708702 W 148. 40675940 576. 38 0.47 233. 86 513.69 576.37 -1.42 2.92 2.83 -1.71 -2.26 0.03 5949819.69 697019.65 N 70.26708681 W 148. 40676026 592. 18 0.48 233. 59 529.49 592.17 -1.48 3.05 2.96 -1.78 -2.36 0.06 5949819.61 697019.54 N 70.26708660 W 148. 40676111 608. 08 0.48 233. 81 545.39 608.07 -1.55 3.18 3.09 -1.86 -2.47 0.01 5949819.52 697019.44 N 70.26708638 W 148. 40676198 623. 88 0.50 233 .05 561.19 623.87 -1.61 3.32 3.23 -1.94 -2.58 0.13 5949819.44 697019.33 N 70.26708616 W 148. 40676286 639 .78 0.48 233 .03 577.09 639.77 -1.68 3.45 3.37 -2.02 -2.69 0.13 5949819.36 697019.23 N 70.26708594 W 148. 40676373 655 .68 0.47 232 .98 592.99 655.67 -1.75 3.58 3.50 -2.10 -2.79 0.06 5949819.27 697019.12 N 70.26708572 W 148. 40676459 671 .48 0.50 231 .74 608.79 671.47 -1.82 3.72 3.63 -2.19 -2.90 0.20 5949819.19 697019.02 N 70.26708550 W 148. 40676544 687 .38 0.50 231 .43 624.69 687.37 -1.89 3.86 3.77 -2.27 -3.01 0.02 5949819.10 697018.91 N 70.26708526 W 148. 40676632 703 .28 0.53 231 .74 640.59 703.27 -1.96 4.00 3.91 -2.36 -3.12 0.19 5949819.01 697018.80 N 70.26708502 W 148 .40676723 719 .08 0.55 231 .77 656.39 719.07 -2.04 4.15 4.06 -2.45 -3.24 0.13 5949818.91 697018.69 N 70.26708477 W 148 .40676817 734 .98 0.55 231 .84 672.29 734.97 -2.12 4.30 4.21 -2.55 -3.36 0.00 5949818.82 697018.57 N 70.26708451 W 148 .406769 4 750 .78 0.53 231 .46 688.08 750.76 -2.20 4.45 4.36 -2.64 -3.47 0.13 5949818.72 697018.46 N 70.26708426 W 148 .40677 766 .68 0.53 231 .09 703.98 766.66 -2.27 4.60 4.51 -2.73 -3.59 0.02 5949818.63 697018.34 N 70.26708401 W 148 .40677 782 .58 0.55 230 .50 719.88 782.56 -2.35 4.75 4.66 -2.83 -3.70 0.13 5949818.53 697018.23 N 70.26708375 W 148 .40677195 798 .48 0.58 229 .55 735.78 798.46 -2.44 4.90 4.82 -2.93 -3.82 0.20 5949818.42 697018.11 N 70.26708347 W 148 .40677292 814 .38 0.58 229 .39 751.68 814.36 -2.53 5.06 4.98 -3.03 -3.95 0.01 5949818.32 697017.99 N 70.26708319 W 148 .40677391 830 .28 0.58 229 .31 767.58 830.26 -2.62 5.22 5.14 -3.14 -4.07 0.01 5949818.21 697017.87 N 70.26708290 W 148 .40677490 846 .18 0.57 229 .54 783.48 846.16 -2.71 5.38 5.30 -3.24 -4.19 0.06 5949818.10 697017.76 N 70.26708262 W 148 .40677588 862 .08 0.57 230 .09 799.38 862.06 -2.79 5.54. 5.46 -3.34 -4.31 0.03 5949818.00 697017.64 N 70.26708234 W 148 .40677686 877 .98 0.60 230 .37 815.28 877.96 -2.88 5.70 5.62 -3.45 -4.44 0.19 5949817.89 697017.52 N 70.26708206 W 148 .40677787 893 .88 0.60 230 .55 831.18 893.86 -2.97 5.87 5.78 -3.55 -4.56 0.01 5949817.78 697017.39 N 70.26708177 W 148 .40677890 909 .68 0.60 230 .55 846.98 909.66 -3.06 6.04 5.95 -3.66 -4.69 0.00 5949817.67 697017.27 N 70.26708148 W 148 .40677994 925 .68 0.62 231 .76 862.98 925.66 -3.15 6.21 6.12 -3.76 -4.83 0.15 5949817.56 697017.14 N 70.26708119 W 148 .40678101 941 .58 0.63 232 .81 878.87 941.55 -3.24 6.38 6.29 -3.87 -4.96 0.10 5949817.45 697017.00 N 70.26708090 W 148 .40678212 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-236\05-23B Generated 6/25/2008 11:27 AM Page 2 of 10 Comments Measured Inclination Azimuth SulrSea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft it ft ft ft ft de 100 ft ftUS ftUS ~Jb/.:it5 U.bb L3C.5y i3`J4.b/ ~b/.3J -3.33 O.aO o.4/ v.ao -v. iv u. i./ :/a-rau i / . .re vai v ~ v.a/v ~. i v. ~vi vuw i v• ~-.v. ~vv~.~.~~.v 973.28 0.65 232.72 910.57 973.25 -3.42 6.74 6.65 -4.09 -5. 25 0.01 5949817. 23 697016.72 N 70. 28708031 W 148. 40678441 989.18 0.65 233.04 926.47 989.15 -3.51 6.92 6.83 -4.20 -5. 39 0.02 5949817. 12 697016.58 N 70. 26708001 W 148. 40678558 1005.08 0.65 233.09 942.37 1005.05 -3.60 7.10 7.01 -4.30 -5. 53 0.00 5949817. 00 697016.44 N 70. 26707971 W 148. 40678674 1020.98 0.63 233.30 958.27 1020.95 -3.69 7.28 7.19 -4.41 -5. 68 0.13 5949816. 89 697016.30 N 70. 26707942 W 148. 40678789 1036.88 0.63 233.44 974.17 1036.85 -3.77 7.45 7.36 -4.51 -5. 82 0.01 5949816. 79 697016.16 N 70. 26707914 W 148. 40678903 1052.78 0.60 232.94 990.07 1052.75 -3.86 7.62 7.53 -4.62 -5. 95 0.19 5949816. 68 697016.03 N 70. 26707886 W 148. 40679013 1068.68 0.53 233.79 1005.97 1068.65 -3.93 7.78 7.69 -4.71 -6. 08 0.44 5949816. 58 697015.91 N 70. 26707860 W 148. 40679115 1084.58 0.48 234.44 1021.87 1084.55 -4.00 7.92 7.83 -4.79 -6. 19 0.32 5949816. 50 697015.80 N 70. 26707838 W 148. 40679207 1100.48 0.48 234.36 1037.77 1100.45 -4.07 8.05 7.96 -4.87 -6. 30 0.00 5949816. 42 697015.69 N 70. 26707817 W 148. 40679294 1116 38 0.48 235.23 1053.67 1116.35 -4.13 8.18 8.10 -4.95 -6. 41 0.05 5949816. 34 697015.58 N 70. 26707796 W 148. 40679382 . 9 1132.28 0.47 237.71 1069.56 1132.24 -4.19 8.32 8.23 -5.02 -6. 52 0.14 5949816. 26 697015.47 N 70. 26707778 W 148. 4067 1148.18 0.45 241.51 1085.46 1148.14 -4.24 8.44 8.35 -5.08 -6. 63 0.23 5949816. 19 697015.37 N 70. 26707758 W 148. 40679560 1164.08 0.43 244.07 1101.36 1164.04 -4.28 8.57 8.47 -5.14 -6. 74 0.18 5949816. 14 697015.26 N 70. 26707743 W 148. 40679648 1179.98 0.42 246.05 1117.26 1179.94 -4.32 8.68 8.59 -5.19 -6. 84 0.11 5949816. 08 697015.15 N 70. 26707729 W 148. 40679734 1195.88 0.40 247.72 1133.16 1195.84 -4.35 8.80 8.70 -5.23 -6. 95 0.15 5949816. 04 697015.05 N 70. 26707717 W 148. 40679819 1211.68 0.38 248.27 1148.96 1211.64 -4.38 8.91 8.80 -5.27 -7. 05 0.13 5949815. 99 697014.95 N 70 .26707706 W 148. 40679899 1227.58 0.37 249.18 1164.88 1227.54 -4.40 9.01 8.90 -5.31 -7. 15 0.07 5949815. 95 697014.88 N 70 .26707696 W 148. 40679978 1243.48 0.35 251.55 1180.76 1243.44 -4.42 9.11 9.00 -5.35 -7. 24 0.16 5949815. 92 697014.76 N 70 .26707687 W 148. 40680054 1259.38 0.35 252.60 1196.66 1259.34 -4.44 9.21 9.09 -5.38 -7. 33 0.04 5949815. 88 697014.67 N 70 .26707678 W 148. 40680128 1275.28 0.35 252.98 1212.56 1275.24 -4.46 9.30 9.18 -5.40 -7. 43 0.01 5949815. 85 697014.58 N 70 .26707671 W 148. 40680203 1291.18 0.33 254.65 1228.48 1291.14 -4.47 9.40 9.27 -5.43 -7. 52 0.14 5949815. 82 697014.49 N 70 .26707663 W 148. 40680277 1307.08 0.30 258.14 1244.36 1307.04 -4.48 9.49 9.35 -5.45 -7. 60 0.22 5949815. 80 697014.40 N 70 .26707658 W 148. 40680345 1322.88 0.25 263.65 1260.16 1322.84 -4.49 9.56 9.42 -5.46 -7. 68 0.36 5949815. 79 697014.33 N 70 .26707654 W 148. 40680406 1338.78 0.22 267.69 1276.06 1338.74 -4.49 9.63 9.48 -5.47 -7. 74 0.22 5949815. 78 697014.27 N 70 .26707653 W 148. 40680458 1354.68 0.20 268.70 1291.96 1354.64 -4.48 9.68 9.53 -5.47 -7. 80 0.13 5949815. 78 697014.21 N 70 .26707652 W 148. 40680505 1370.58 0.17 266.85 1307.86 1370.54 -4.48 9.74 9.57 -5.47 -7. 85 0.19 5949815 .77 697014.16 N 70 .26707652 W 148. 40680547 1386.38 0.13 260.23 1323.66 1386.34 -4.47 9.78 9.61 -5.48 -7 .89 0.28 5949815 .77 697014.12 N 70 .26707651 W 148. 40680580 1402.28 0.12 247.00 1339.56 1402.24 -4.48 9.81 9.64 -5.49 -7 .92 0.19 5949815 .76 697014.08 N 70 .26707648 W 148. 4068t~ 1418.18 0.12 228.76 1355.46 1418.14 -4.49 9.84 9.67 -5.50 -7 .95 0.24 5949815 .74 697014.06 N 70 .26707643 W 148. 40680 1433.98 0.12 210.82 1371.26 1433.94 -4.52 9.88 9.70 -5.53 -7 .97 0.24 5949815 .71 697014.03 N 70 .26707636 W 148. 40680646 1449.58 0.12 193.25 1386.86 1449.54 -4.54 9.91 9.73 -5.56 -7 .99 0.23 5949815 .68 697014.02 N 70 .26707628 W 148. 40680656 1465.18 0.13 174.73 1402.46 1465.14 -4.58 9.94 9.75 -5.59 -7 .99 0.27 5949815 .65 697014.02 N 70 .26707619 W 148 .40680658 1480.78 0.15 161.13 1418.08 1480.74 -4.62 9.98 9.77 -5.63 -7 .98 0.25 5949815 .61 697014.03 N 70 .26707809 W 148 .40680651 1496.38 0.18 153.25 1433.66 1496.34 -4.66 10.03 9.77 -5.67 -7 .96 0.24 5949815 .57 697014.05 N 70 .26707598 W 148 .40680637 1511.88 0.18 145.99 1449.16 1511.84 -4.70 10.07 9.78 -5.71 -7 .94 0.15 5949815 .53 697014.08 N 70.26707586 W 148 .40680617 1527.48 0.18 139.17 1464.76 1527.44 -4.75 10.12 9.78 -5.75 -7 .91 0.14 5949815 .49 697014.11 N 70 .26707576 W 148 .40680593 1542.98 0.22 132.76 1480.26 1542.94 -4.79 10.18 9.77 -5.79 -7 .87 0.30 5949815 .46 697014.15 N 70.26707565 W 148 .40680562 1558.48 0.27 128.54 1495.76 1558.44 -4.84 10.24 9.76 -5.83 -7 .82 0.34 5949815 .41 697014.20 N 70 .26707553 W 148 .40680522 1574.08 0.32 127.17 1511.36 1574.04 -4.89 10.32 9.73 -5.88 -7 .76 0.32 5949815 .37 697014.26 N 70 .26707540 W 148 .40680470 1589.58 0.32 124.26 1526.86 1589.54 -4.95 10.41 9.71 -5.93 -7 .69 0.10 5949815 .32 697014.33 N 70 .26707526 W 148 .40680413 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-236\05-23B Generated 6/25/2008 11:27 AM Page 3 of 10 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 OOft ftUS ftUS 1605.18 0.33 121.46 1542.46 1605.14 -5. 01 10.50 9.68 -5. 98 -7.61 0.12 5949815. 27 697014.41 N 70.26707513 W 148. 40680353 1620.78 0.35 119.66 1558.06 1620.74 -5. 07 10.59 9.65 -6. 03 -7.53 0.15 5949815. 23 697014.49 N 70.26707500 W 148. 40680289 1636.38 0.37 117.89 1573.66 1636.34 -5. 12 10.69 9.61 -6. 08 -7.45 0.15 5949815. 18 697014.58 N 70.26707487 W 148. 40680219 1651.98 0.37 116.16 1589.26 1651.94 -5. 18 10.79 9.57 -6. 12 -7.36 0.07 5949815. 14 697014.67 N 70.26707475 W 148. 40680147 1667.48 0.37 115.03 1604.76 1667.44 -5. 23 10.89 9.53 -6. 16 -7.27 0.05 5949815. 10 697014.76 N 70.26707463 W 148. 40680074 1683.08 0.42 115.73 1620.36 1683.04 -5. 29 11.00 9.48 -6. 21 -7.17 0.32 5949815. 05 697014.86 N 70.26707450 W 148. 40679995 1698.68 0.45 117.09 1635.96 1698.64 -5. 36 11.12 9.44 -6. 26 -7.06 0.20 5949815. 00 697014.96 N 70.26707436 W 148. 40679910 1714.28 0.50 117.68 1651.56 1714.24 -5. 43 11.25 9.39 -6. 32 -6.95 0.32 5949814. 95 697015.08 N 70.26707420 W 148. 40679817 1729.78 0.52 117.46 1667.06 1729.74 -5. 51 11.38 9.35 -6. 39 -6.83 0.13 5949814. 89 697015.20 N 70.26707402 W 148. 40679718 1745.38 0.52 116.58 1682.66 1745.34 -5. 59 11.53 9.30 -6. 45 -6.70 0.05 5949814. 83 697015.33 N 70.26707385 W 148. 40679616 1760.98 0.53 117.85 1698.25 1760.93 -5. 67 11.67 9.25 -6. 52 -6.57 0.10 5949814. 76 697015.46 N 70.26707367 W 148. 4067 1776.58 0.60 120.73 1713.85 1776.53 -5. 76 11.82 9.21 -6. 59 -6.44 0.48 5949814. 69 697015.60 N 70.26707346 W 148. 40679 1792.18 0.67 121.88 1729.45 1792.13 -5. 87 11.99 9.18 -6. 68 -6.29 0.46 5949814. 61 697015.75 N 70.26707322 W 148. 40679285 1807.78 0.75 123.46 1745.05 1807.73 -5. 99 12.19 9.14 -6. 79 -6.13 0.53 5949814. 51 697015.91 N 70.26707293 W 148. 40679154 1823.38 0.90 125.74 1760.65 1823.33 -6. 14 12.41 9.12 -6. 91 -5.94 0.98 5949814. 38 697016.10 N 70.26707258 W 148 .40679005 1838.98 1.03 126.83 1776.25 1838.93 -6. 32 12.68 9.10 -7. 07 -5.73 0.84 5949814 .23 697016.32 N 70.26707216 W 148 .40678834 1854.58 1.13 128.53 1791.85 1854.53 -6. 53 12.97 9.10 -7. 25 -5.50 0.67 5949814 .06 697016.55 N 70.26707167 W 148 .40678646 1870.18 1.22 131.87 1807.44 1870.12 -6. 76 13.29 9.12 -7 .46 -5.25 0.72 5949813 .86 697016.80 N 70.26707110 W 148 .40678448 1885.78 1.28 134.67 1823.04 1885.72 -7. 02 13.63 9.18 -7 .69 -5.01 0.55 5949813 .63 697017.06 N 70.26707046 W 148 .40678248 1901.38 1.32 135.83 1838.63 1901.31 -7. 30 13.98 9.26 -7 .94 -4.76 0.31 5949813 .39 697017.31 N 70.26706978 W 148 .40678047 1916.98 1.32 136.49 1854.23 1916.91 -7. 59 14.34 9.36 -8 .20 -4.51 0.10 5949813 .14 697017.57 N 70.26706907 W 148 .40677845 1932.58 1.30 137.06 1869.83 1932.51 -7. 88 14.70 9.47 -8 .46 -4.26 0.15 5949812 .88 697017.82 N 70.26706836 W 148 .40677648 1948.18 1.30 137.52 1885.42 1948.10 -8. 16 15.05 9.60 -8 .72 -4.02 0.07 5949812 .63 697018.07 N 70.26706765 W 148 .40677454 1963.78 1.30 138.37 1901.02 1963.70 -8. 45 15.41 9.75 -8 .98 -3.79 0.12 5949812 .37 697018.31 N 70.26706693 W 148 .40677262 1979.28 1.33 139.20 1916.51 1979.19 -8. 75 15.76 9.91 -9 .25 -3.55 0.23 5949812 .11 697018.55 N 70.26706620 W 148 .40677073 1994.88 1.33 139.27 1932.11 1994.79 -9. 05 16.13 10.09 -9 .52 -3.32 0.01 5949811 .84 697018.79 N 70.26706545 W 148 .40676882 2010.38 1.32 138.89 1947.61 2010.29 -9. 35 16.48 10.27 -9 .80 -3.08 0.09 5949811 .58 697019.04 N 70.26706471 W 148 .40676692 2025.98 1.32 138.78 1963.20 2025.88 -9. 64 16.84 10.46 -10 .07 -2.85 0.02 5949811 .31 697019.28 N 70.26706397 W 148 .40676500 2041.58 1.33 138.92 1978.80 2041.48 -9. 94 17.20 10.66 -10 .34 -2.61 0.07 5949811 .05 697019.52 N 70.26706323 W 148 .4067 2057.18 1.33 139.00 1994.39 2057.07 -10 .24 17.57 10.87 -10 .61 -2.37 0.01 5949810 .78 697019.77 N 70.26706248 W 148 .4067 2072.78 1.32 139.44 2009.99 2072.67 -10 .54 17.93 11.09 -10 .88 -2.13 0.09 5949810 .51 697020.01 N 70.26706174 W 148 .40675926 2088.38 1.23 139.86 2025.58 2088.26 -10 .83 18.27 11.31 -11 .15 -1.91 0.58 5949810 .26 697020.24 N 70.26706101 W 148 .40675744 2103.98 1.20 140.45 2041.18 2103.86 -11 .11 18.60 11.53 -11 .40 -1.70 0.21 5949810 .01 697020.46 N 70.26706032 W 148 .40675573 2119.48 1.22 140.73 2056.68 2119.36 -11 .39 18.93 11.75 -11 .66 -1.49 0.13 5949809 .76 697020.68 N 70.26705963 W 148 .40675405 2135.08 1.22 140.64 2072.27 2134.95 -11 .67 19.26 11.98 -11 .91 -1.28 0.01 5949809 .51 697020.89 N 70.26705893 W 148 .40675235 2150.68 1.23 140.74 2087.87 2150.55 -11 .95 19.60 12.22 -12 .17 -1.07 0.07 5949809 .26 697021.11 N 70.26705822 W 148 .40675064 2166.28 1.27 140.19 2103.47 2166.15 -12 .24 19.94 12.46 -12 .43 -0.85 0.27 5949809 .00 697021.33 N 70.26705751 W 148 .40674889 2181.78 1.25 140.55 2118.96 2181.64 -12 .52 20.28 12.71 -12 .70 -0.63 0.14 5949808 .74 697021.56 N 70.26705679 W 148 .40674713 2197.38 1.27 141.99 2134.56 2197.24 -12 .81 20.62 12.97 -12 .96 -0.42 0.24 5949808 .48 697021.78 N 70.26705606 W 148 .40674539 2212.98 1.32 142.87 2150.16 2212.84 -13 .12 20.97 13.24 -13.24 -0.21 0.34 5949808 .21 697022.00 N 70.26705529 W 148 .40674366 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-23B\05-23B Generated 6/25/2008 11:27 AM Page 4 of 10 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 it ft ft ft de OOft ftUS ftUS LLLt5.525 1..75 14L. // LION./~ CGGa.43 '13. 43 GI.J4 IJ..7J -IJ.JJ V.VI V. 1.7 J.74~OV/.~L 0.7/VGL.GJ IV /V.GV/VJ4JV YV 140.4V0/4100 2244.18 1.37 142. 84 2181.35 2244.03 -13. 75 21.71 13.83 -13.83 0.24 0.13 5949807.64 697022.46 N 70.26705370 W 148.40674007 2259.78 1.40 143. 76 2196.94 2259.62 -14. 08 22.08 14.14 -14.13 0.46 0.24 5949807.34 697022.69 N 70.26705287 W 148.40673825 2275.38 1.4b 144. 08 2212.54 2275.22 -14. 41 22.47 14.45 -14.44 0.69 0.05 5949807.04 697022.93 N 70.26705203 W 148.40673643 2290.98 1.42 144. 41 2228.13 2290.81 -14. 75 22.85 14.78 -14.75 0.91 0.14 5949806.73 697023.16 N 70.26705118 W 148.40673462 2306.58 1.43 143. 98 2243.73 2306.41 -15. 09 23.24 15.11 -15.06 1.14 0.09 5949806.42 697023.39 N 70.26705032 W 148.40673279 2322.18 1.45 143. 57 2259.32 2322.00 -15. 43 23.63 15.44 -15.38 1.37 0.14 5949806.11 697023.63 N 70.26704946 W 148.40673091 2337.68 1.45 145. 00 2274.82 2337.50 -15. 78 24.02 15.78 -15.70 1.60 0.23 5949805.80 697023.87 N 70.26704859 W 148.40672906 2353.28 1.47 146. 71 2290.41 2353.09 -16. 13 24.42 16.13 -16.03 1.82 0.31 5949805.48 697024.10 N 70.26704769 W 148.40672726 2368.78 1.50 147. 82 2305.91 2368.59 -16. 49 24.82 16.49 -16.36 2.04 0.27 5949805.15 697024.33 N 70.26704676 W 148.40672550 2384.38 1.52 147. 79 2321.50 2384.18 -16. 86 25.23 16.86 -16.71 2.26 0.13 5949804.80 697024.56 N 70.26704581 W 148.40672 2399.88 1.53 147. 79 2337.00 2399.68 -17. 24 25.64 17.24 -17.06 2.48 0.06 5949804.46 697024.78 N 70.26704486 W 148.4067 2415.08 1.52 147. 69 2352.19 2414.87 -17. 60 26.05 17.61 -17.40 2.70 0.07 5949804.12 697025.01 N 70.26704393 W 148.40672 2430.38 1.50 148. 18 2367.49 2430.17 -17. 97 26.45 17.98 -17.75 2.91 0.16 5949803.79 697025.23 N 70.26704299 W 148.40671848 2445.58 1.50 149. 23 2382.68 2445.36 -18. 33 26.85 18.35 -18.09 3.12 0.18 5949803.45 697025.45 N 70.26704206 W 148.40671681 2460.68 1.53 150. 31 2397.78 2460.46 -18. 70 27.25 18.73 -18.43 3.32 0.27 5949803.11 697025.66 N 70.26704112 W 148.40671518 2475.88 1.55 151. 88 2412.97 2475.65 -19. 08 27.66 19.11 -18.79 3.51 0.31 5949802.76 697025.86 N 70.26704014 W 148.40671359 2491.08 1.55 152. 80 2428.16 2490.84 -19. 46 28.07 19.51 -19.15 3.71 0.16 5949802.40 697026.06 N 70.26703915 W 148.40671204 2506.38 1.57 153. 44 2443.46 2506.14 -19. 85 28.49 19.91 -19.52 3.89 0.17 5949802.04 697026.26 N 70.26703813 W 148.40671052 2521.58 1.58 154. 40 2458.65 2521.33 -20. 25 28.90 20.31 -19.90 4.08 0.19 5949801.67 697026.46 N 70.26703711 W 148.40670904 2537.78 1.58 154. 74 2474.85 2537.53 -20. 67 29.35 20.75 -20.30 4.27 0.06 5949801.27 697026.66 N 70.26703601 W 148.40670748 2554.18 1.57 155. 29 2491.24 2553.92 -21. 10 29.80 21.19 -20.71 4.46 0.11 5949800.86 697026.86 N 70.26703489 W 148.40670595 2570.58 1.57 156. 17 2507.63 2570.31 -21. 53 30.25 21.62 -21.12 4.64 0.15 5949800.46 697027.05 N 70.26703377 W 148.40670445 2587.08 1.55 156. 00 2524.13 2586.81 -21 .96 30.70 22.07 -21.53 4.83 0.12 5949800.05 697027.25 N 70.26703265 W 148.40670298 2603.58 1.52 156. 27 2540.62 2603.30 -22 .38 31.14 22.50 -21.94 5.00 0.19 5949799.65 697027.44 N 70.26703155 W 148.40670153 2618.18 1.52 156. 93 2555.22 2617.90 -22 .75 31.53 22.88 -22.29 5.16 0.12 5949799.30 697027.60 N 70.26703057 W 148.40670029 2634.78 1.52 157. 56 2571.81 2634.49 -23 .18 31.97 23.31 -22.70 5.33 0.10 5949798.90 697027.78 N 70.26702947 W 148.40669891 2651.48 1.50 158. 07 2588.51 2651.19 -23 .60 32.41 23.75 -23.10 5.50 0.14 5949798.50 697027.96 N 70.26702835 W 148.40669757 2668.08 1.48 158. 26 2605.10 2667.78 -24 .02 32.84 24.18 -23.50 5.66 0.12 5949798.10 697028.13 N 70.26702726 W 148.40669627 2684.78 1.50 158. 40 2621.79 2684.47 -24 .44 33.27 24.61 -23.91 5.82 0.12 5949797.70 697028.30 N 70.26702616 W 148.4066 2701.38 1.52 158. 85 2638.39 2701.07 -24 .86 33.71 25.04 -24.32 5.98 0.14 5949797.30 697028.47 N 70.26702504 W 148.40669369 2717.98 1.47 160. 21 2654.98 2717.66 -25 .28 34.15 25.47 -24.72 6.13 0.37 5949796.90 697028.63 N 70.26702393 W 148.40669246 2734.58 1.45 162. 21 2671.58 2734.26 -25 .70 34.57 25.89 -25.12 6.26 0.33 5949796.50 697028.78 N 70.26702284 W 148.40669136 2751.18 1.45 163 .09 2688.17 2750.85 -26 .11 34.99 26.31 -25.52 6.39 0.13 5949796.10 697028.91 N 70.26702174 W 148.40669035 2767.78 1.43 163 .21 2704.77 2767.45 -26 .52 35.41 26.73 -25.92 6.51 0.12 5949795.71 697029.05 N 70.26702065 W 148.40668937 2784.28 1.45 163 .91 2721.26 2783.94 -26 .93 35.82 27.14 -26.32 6.63 0.16 5949795.31 697029.17 N 70.26701957 W 148.40668842 2800.88 1.45 164 .02 2737.86 2800.54 -27 .35 36.24 27.56 -26.72 6.74 0.02 5949794.91 697029.30 N 70.26701846 W 148.40668748 2817.38 1.45 164 .07 2754.35 2817.03 -27 .76 36.66 27.98 -27.12 6.86 0.01 5949794.52 697029.42 N 70.26701737 W 148.40668656 2833.98 1.42 164 .55 2770.95 2833.63 -28 .17 37.07 28.39 -27.52 6.97 0.19 5949794.12 697029.55 N 70.26701627 W 148.40668565 2850.58 1.38 164 .54 2787.54 2850.22 -28 .57 37.48 28.80 -27.92 7.08 0.24 5949793.73 697029.67 N 70.26701521 W 148.40668477 2867.28 1.37 164.45 2804.24 2866.92 -28.97 37.88 29.20 -28.30 7.19 0.06 5949793.35 697029.78 N 70.26701415 W 148.40668391 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-23B\05-23B Generated 6/25/2008 11:27 AM Page 5 of 10 Comments Measured Inclination Azimuth SulrSea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft tt ft ft ft ft ft de t00ft ftUS ttUS 2t3tt:i.t3t3 1.:itS lti4./t5 '1t5'LU.tS:S 'LiStS:i.JI -Ly.:ib :Si5.C25 L`J.bU -L25.b`J /.L`J V.VLS b`J4`J/`JL.`J/ b`J/VL`J.~V IV /U.Lb/U131U VV 14L5. 4Ubb23SVJ 2900.48 1.42 165.71 2837.43 2900.11 -29.76 38.68 30.00 -29.08 7.39 0.28 5949792.58 697030.01 N 70.26701203 W 148. 40668222 2917.18 1.43 166.49 2854.12 2916.80 -30.17 39.10 30.42 -29.48 7.49 0.13 5949792.18 697030.12 N 70.26701093 W 148. 40668141 2933.78 1.43 167.12 2870.72 2933.40 -30.59 39.51 30.83 -29.88 7.59 0.09 5949791.78 697030.23 N 70.26700983 W 148. 40668065 2950.48 1.43 167.38 2887.41 2950.09 -31.00 39.93 31.25 -30.29 7.68 0.04 5949791.37 697030.33 N 70.26700872 W 148. 40667990 2967.08 1.40 168.15 2904.01 2966.69 -31.41 40.34 31.66 -30.69 7.77 0.21 5949790.97 697030.43 N 70.26700762 W 148. 40667920 2983.78 1.40 170.63 2920.70 2983.38 -31.82 40.75 32.07 -31.09 7.84 0.36 5949790.58 697030.51 N 70.26700653 W 148. 40667859 3000.38 1.40 171.43 2937.30 2999.98 -32.22 41.15 32.47 -31.49 7.91 0.12 5949790.18 697030.59 N 70.26700543 W 148. 40667808 3016.98 1.40 171.52 2953.89 3016.57 -32.63 41.56 32.87 -31.89 7.97 0.01 5949789.78 697030.66 N 70.26700434 W 148. 40667760 3033.58 1.40 173.02 2970.49 3033.17 -33.03 41.96 33.28 -32.30 8.02 0.22 5949789.38 697030.72 N 70.26700324 W 148. 40667715 3050.18 1.42 173.90 2987.08 3049.76 -33.44 42.37 33.68 -32.70 8.07 0.18 5949788.97 697030.78 N 70.26700213 W 148. 40667678 3066.78 1.42 174.76 3003.68 3066.36 -33.85 42.78 34.09 -33.11 8.11 0.13 5949788.56 697030.83 N 70.26700101 W 148. 4066 3083.38 1.40 176.14 3020.27 3082.95 -34.26 43.19 34.49 -33.52 8.14 0.24 5949788.16 697030.87 N 70.26699990 W 148. 40667 3099.98 1.38 178.00 3036.87 3099.55 -34.66 43.60 34.89 -33.92 8.16 0.30 5949787.76 697030.90 N 70.26699880 W 148. 40667602 3116.58 1.38 178.73 3053.46 3116.14 -35.06 44.00 35.28 -34.32 8.17 0.11 5949787.36 697030.93 N 70.26699771 W 148. 40667593 3133.18 1.38 179.30 3070.06 3132.74 -35.46 44.39 35.67 -34.72 8.18 0.08 5949786.96 697030.94 N 70.26699662 W 148. 40667587 3149.78 1.37 180.88 3086.65 3149.33 -35.85 44.79 36.06 -35.12 8.18 0.24 5949786.56 697030.95 N 70.26699553 W 148. 40667588 3166.48 1.32 183.44 3103.35 3166.03 -36.24 45.19 36.44 -35.51 8.16 0.47 5949786.17 697030.95 N 70.26699446 W 148. 40667600 3183.08 1.25 185.97 3119.94 3182.62 -36.60 45.56 36.79 -35.88 8.13 0.54 5949785.80 697030.93 N 70.26699345 W 148. 40667624 3199.78 1.23 187.14 3136.64 3199.32 -36.96 45.92 37.13 -36.24 8.09 0.19 5949785.44 697030.90 N 70.26699247 W 148. 40667657 Tie-In Survey 3199.78 1.23 187.14 3136.64 3199.32 -36.96 45.92 37.13 -36.24 8.09 0.00 5949785.44 697030.90 N 70.26699247 W 148. 40667657 TOW (Gyro Interp) 3232.00 1.13 188.82 3168.85 3231.53 -37.60 46.58 37.75 -36.90 8.00 0.33 5949784.78 697030.82 N 70.26699067 W 148. 40667732 BOW (Blind) 3248.00 1.70 273.78 3184.85 3247.53 -37.70 46.91 37.84 -37.04 7.74 12.23 5949784.63 697030.57 N 70.26699029 W 148. 40667943 GYD GC SS 3260.00 3.22 273.78 3196.84 3259.52 -37.61 47.43 37.70 -37.00 7.23 12.67 5949784.65 697030.05 N 70.26699038 W 148. 40668358 3314.00 6.28 261.34 3250.65 3313.33 -37.41 51.88 37.45 -37.35 2.79 5.95 5949784.19 697025.63 N 70.26698944 W 148. 40671943 3406.00 10.60 273.76 3341.64 3404.32 -35.97 65.33 39.03 -37.55 -10.63 5.07 5949783.64 697012.21 N 70.26698888 W 148. 40682798 3502.00 12.81 296.59 3435.68 3498.36 -28.43 84.56 43.32 -32.20 -28.97 5.30 5949788.50 696993.74 N 70.26700349 W 148. 40697625 MWD+IFR+MS 3532.95 13.16 305.01 3465.85 3528.53 -24.18 91.51 45.17 -28.65 -34.93 6.21 5949791.90 696987.70 N 70.26701321 W 148. 40702440 3628.33 15.27 322.13 3558.34 3621.02 -6.12 114.76 53.03 -12.49 -51.54 4.91 5949807.61 696970.67 N 70.26705734 W 148. 40715871 ~ 3723.93 19.70 332.74 3649.52 3712.20 19.82 143.41 67.69 11.79 -66.66 5.69 5949831.49 696954.92 N 70.26712367 W 148. 4072> 3820.64 24.37 339.37 3739.16 3801.84 54.53 179.65 92.79 44.97 -81.17 5.46 5949864.28 696939.55 N 70.26721433 W 148. 40739824 3915.96 29.49 347.09 3824.14 3886.82 97.02 222.75 127.12 86.29 -93.35 6.49 5949905.26 696926.29. N 70.26732720 W 148. 40749674 4009.72 34.56 349.77 3903.61 3966.29 146.56 272.45 169.94 134.99 -103.24 5.61 5949953.68 696915.13 N 70.26746024 W 148. 40757668 4104.80 39.38 351.43 3979.55 4042.23 203.67 329.61 222.01 191.38 -112.53 5.18 5950009.81 696904.37 N 70.26761432 W 148. 40765180 4201.35 40.56 351.22 4053.55 4116.23 265.67 391.63 280.55 252.70 -121.88 1.23 5950070.86 696893.41 N 70.26778182 W 148. 40772745 4296.04 41.56 351.93 4124.94 4187.62 327.84 453.83 340.43 314.22 -130.99 1.17 5950132.12 696882.70 N 70.26794990 W 148. 40780111 4391.51 42.29 351.38 4195.98 4258.66 391.61 517.61 402.55 377.33 -140.25 0.86 5950194.96 696871.79 N 70.26812232 W 148. 40787599 4487.48 40.50 353.26 4267.97 4330.65 455.06 581.07 464.66 440.21 -148.75 2.27 5950257.59 696861.65 N 70.26829410 W 148. 40794471 4584.00 40.03 352.73 4341.62 4404.30 517.44 643.45 525.91 502.13 -156.35 0.60 5950319.29 696852.43 N 70.26846325 W 148. 40800622 4678.64 39.85 352.13 4414.18 4476.86 578.20 704.21 585.88 562.36 -164.36 0.45 5950379.28 696842.85 N 70.26862779 W 148. 40807094 4774.44 40.29 351.77 4487.49 4550.17 639.85 765.88 646.97 623.42 -172.99 0.52 5950440.09 696832.62 N 70.26879460 W 148. 40814079 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-23B\05-236 Generated 6/25/2008 11:27 AM Page 6 of 10 Measured Vertical Along Hole Comments Inclination Azimuth Sub-Sea TVD NO 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 48/U.US 39.91 351.18 4560.82 46L3.3U /01. 42 82/.4/ /08.15 684.33 -182.1'1 0.55 595U5U0 .74 696821. 90 N 70.26896100 W 148.40821461 4966.10 40.94 352. 08 4633.74 4696.42 763. 69 889.76 770.06 745.95 -191. 19 1.22 5950562 .10 696811. 23 N 70.26912936 W 148 .40828790 5061.82 41.74 351. 97 4705.60 4768.28 826. 91 952.98 832.92 808.57 -199. 96 0.84 5950624 .46 696800. 82 N 70.26930041 W 148 .40835884 5157.97 41.25 354. 47 4777.62 4840.30 890. 60 1016.68 896.16 871.81 -207. 48 1.80 5950687 .48 696791. 64 N 70.26947320 W 148 .40841971 5252.90 41.39 354. 65 4848.92 4911.60 953. 26 1079.36 958.28 934.21 -213. 43 0.19 5950749 .70 696784. 07 N 70.26964366 W 148 .40846778 5348.74 39.59 355. 72 4921.81 4984.49 1015. 44 1141.58 1019.93 996.22 -218. 66 2.01 5950811 .54 696777. 22 N 70.26981306 W 148 .40851011 5444.05 39.44 355. 58 4995.33 5058.01 1076. 02 1202.23 1080.01 1056.68 -223. 26 0.18 5950871 .87 696771. 04 N 70.26997825 W 148 .40854732 5539.49 39.16 355. 56 5069.19 5131.87 1136. 41 1262.68 1139.97 1116.95 -227. 93 0.29 5950931 .99 696764. 79 N 70.27014291 W 148 .40858509 5634.87 39.74 354. 10 5142.84 5205.52 1196. 98 1323.28 1200.22 1177.31 -233. 39 1.15 5950992 .18 696757. 75 N 70.27030779 W 148 .40862930 5731.44 40.03 354. 41 5216.94 5279.62 1258. 89 1385.21 1261.88 1238.92 -239. 59 0.36 5951053 .61 696749. 94 N 70.27047611 W 148 .40867944 5826.33 39.90 353. 97 5289.67 5352.35 1319. 82 1446.16 1322.59 1299.56 -245. 76 0.33 5951114 .06 696742. 19 N 70.27064177 W 148 .4087 5921.15 39.70 353. 73 5362.52 5425.20 1380. 51 1506.85 1383.10 1359.90 -252. 26 0.27 5951174 .21 696734. 11 N 70.27080663 W 148 2 .4087 6016.88 39.28 353. 32 5436.40 5499.08 1441. 39 1567.73 1443.84 1420.39 -259. 13 0.52 5951234 .49 696725. 66 N 70.27097188 W 148 .40883 6113.01 39.39 354. 40 5510.75 5573.43 1502. 31 1628.66 1504.61 1480.98 -265. 64 0.72 5951294 .88 696717. 56 N 70.27113738 W 148 .40889017 6208.40 40.87 353. 06 5583.68 5646.36 1563. 78 1690.14 1565.95 1542.08 -272. 37 1.80 5951355 .79 696709. 24 N 70.27130433 W 148 .40894458 6303.93 41.74 353. 81 5655.45 5718.13 1626. 84 1753.19 1628.90 1604.72 -279. 58 1.05 5951418 .22 696700. 40 N 70.27147546 W 148 .40900286 6399.59 40.90 351. 33 5727.29 5789.97 1689. 98 1816.35 1691.99 1667.35 -287. 73 1.92 5951480 .60 696690. 61 N 70.27164653 W 148 .40906883 6494.80 41.71 351. 57 5798.81 5861.49 1752. 80 1879.19 1754.82 1729.49 -297. 07 0.87 5951542 .47 696679. 64 N 70.27181631 W 148 .40914440 6590.47 40.00 349. 54 5871.18 5933.86 1815. 32 1941.77 1817.39 1791.22 -307. 32 2.26 5951603 .91 696667. 78 N 70.27198495 W 148 .40922730 6686.24 40.82 349. 04 5944.10 6006.78 1877. 27 2003.85 1879.47 1852.22 -318. 86 0.92 5951664 .58 696654. 65 N 70.27215159 W 148 .40932064 6781.74 41.80 349. 37 6015.83 6078.51 1940 .18 2066.89 1942.50 1914.15 -330. 67 1.05 5951726 .18 696641. 23 N 70.27232077 W 148 .40941614 6877.56 41.02 350. 73 6087.70 6150.38 2003 .47 2130.27 2005.87 1976.57 -341. 62 1.24 5951788 .29 696628. 65 N 70.27249130 W 148 .40950477 6973.43 40.79 351. 24 6160.16 6222.84 2066 .21 2193.05 2068.64 2038.57 -351. 46 0.42 5951850 .00 696617. 19 N 70.27266068 W 148 .40958434 7069.02 40.90 351. 09 6232.47 6295.15 2128 .69 2255.56 2131.15 2100.34 -361. 06 0.15 5951911 .50 696605. 97 N 70.27282945 W 148 .40966202 7164.89 40.69 351. 10 6305.05 6367.73 2191 .29 2318.20 2193.78 2162.23 -370. 76 0.22 5951973 .11 696594. 66 N 70.27299850 W 148 .40974046 7259.30 41.34 350. 67 6376.28 6438.96 2253 .21 2380.16 2255.74 2223.40 -380. 57 0.75 5952034 .00 696583. 25 N 70.27316562 W 148 .40981988 7354.80 41.41 354. 64 6447.96 6510.64 2316 .30 2443.27 2318.78 2285.98 -388. 64 2.75 5952096 .34 696573. 55 N 70.27333659 W 148 .40988513 7450.37 40.57 353. 72 6520.10 6582.78 2378 .97 2505.95 2381.33 2348.34 -394. 99 1.08 5952158 .51 696565. 57 N 70.27350695 W 148 .40993653 7546.77 39.84 353. 55 6593.72 6656.40 2441 .20 2568.18 2443.46 2410.19 -401. 89 0.77 5952220 .15 696557. 05 N 70.27367591 W 148 .4099 7641.51 41.36 355. 47 6665.65 6728.33 2502 .82 2629.83 2504.96 2471.55 -407. 77 2.08 5952281 .34 696549. 57 N 70.27384355 W 148 .4100 7737.63 40.87 355. 19 6738.07 6800.75 2565 .98 2693.04 2567.96 2534.55 -412. 92 0.54 5952344 .18 696542. 78 N 70.27401565 W 148 .41008158 7832.93 40.76 355. 40 6810.20 6872.88 2628 .22 2755.33 2630.06 2596.63 -418. 03 0.18 5952406 .10 696536. 04 N 70.27418525 W 148 .41012293 7929.23 40.48 355. 39 6883.29 6945.97 2690 .86 2818.02 2692.56 2659.12 -423. 06 0.29 5952468 .43 696529. 38 N 70.27435597 W 148 .41016367 8024.01 39.75 354. 16 6955.78 7018.46 2751 .89 2879.09 2753.50 2719.93 -428. 62 1.14 5952529 .08 696522. 23 N 70.27452211 W 148 .41020864 8119.87 40.26 354. 60 7029.20 7091.88 2813 .50 2940.71 2815.02 2781.26 -434. 65 0.61 5952590 .22 696514. 60 N 70.27468965 W 148 .41025746 8216.45 39.65 356. 01 7103.24 7165.92 2875 .47 3002.73 2876.87 2843.07 -439. 73 1.13 5952651 .87 696507. 90 N 70.27485851 W 148 .41029859 8310.58 39.79 357. 01 7175.64 7238.32 2935 .51 3062.88 2936.77 2903.11 -443. 39 0.69 5952711 .79 696502 .67 N 70.27502253 W 148 .41032823 8406.78 39.75 359. 50 7249.59 7312.27 2996 .78 3124.42 2997.86 2964.61 -445. 27 1.66 5952773 .22 696499. 19 N 70.27519055 W 148 .41034341 8502.77 38.50 359. 20 7324.05 7386.73 3056 .97 3184.99 3057.87 3025.18 -445. 95 1.32 5952833 .74 696496. 92 N 70.27535601 W 148 .41034898 8598.02 37.81 357. 37 7398.95 7461.63 3115 .56 3243.83 3116.32 3083.99 -447. 70 1.39 5952892 .49 696493. 62 N 70.27551668 W 148 .41036319 8693.78 36.64 357. 20 7475.20 7537.88 3173 .33 3301.76 3173.98 3141.85 -450. 45 1.23 5952950 .26 696489. 37 N 70.27567476 W 148 .41038541 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-236\05-23B Generated 6/25/2008 11:27 AM Page 7 of 10 Comments Measured Inclination Azimuth Suh.Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft N tt tt de 00 tt ttUS ftUS ~~tfy.tf(J 3f.yL .$'J~•~~ /55.8.513 /b lb.Lb JLL8.01 J~5.7/.LI 3GL~.1/ J1.7/.GJ -4JL. 0~ L.OJ .7.7.7JVV.7. .7/ O~O'FOJ.YO IV /V.L/JOGVI I VV IYO. YIVYVJ I.7 8885.94 28.24 356.46 7635.89 7698.57 3278.09 3406.82 3278.57 3246.80 -455. 34 5.95 5953055. 03 696481.73 N 70.27596147 W 148. 41042503 8981.42 21.79 358.60 7722.37 7785.05 3318.32 3447.17 3318.74 3287.10 -457. 17 6.82 5953095. 27 696478.85 N 70.27607158 W 148. 41043985 9077.34 17.58 357.68 7812.66 7875.34 3350.49 3479.47 3350.86 3319.39 -458. 19 4.40 5953127. 52 696476.98 N 70.27615978 W 148. 41044813 9171.86 17.52 356.77 7902.78 7965.46 3378.91 3507.97 3379.25 3347.86 -459. 57 0.30 5953155. 94 696474.86 N 70.27623755 W 148. 41045930 9267.48 19.30 356.17 7993.50 8056.18 3409.05 3538.17 3409.37 3378.00 -461. 44 1.87 5953186. 02 696472.20 N 70.27631989 W 148. 41047442 9362.98 18.94 357.15 8083.74 8146.42 3440.27 3569.45 3440.55 3409.22 -463. 26 0.51 5953217. 18 696469.56 N 70.27640520 W 148. 41048919 MWD+IFR+MS 9403.50 18.31 356.50 8122.13 8184.81 3453.18 3582.39 3453.45 3422.14 -463. 98 1.64 5953230. 08 696468.51 N 70.27644050 W 148. 41049499 Inc+Trend 9465.83 17.80 0.17 8181.40 8244.08 3472.41 3601.70 3472.66 3441.44 -464. 55 2.00 5953249. 36 696467.43 N 70.27649322 W 148. 41049960 Inc+Trend 9496.79 17.76 1.92 8210.88 8273.56 3481.77 3611.15 3482.00 3450.89 -464. 38 1.73 5953258. 81 696467.36 N 70.27651904 W 148. 41049821 MWD+IFR+MS 9530.07 18.10 3.93 8242.54 8305.22 3491.86 3621.40 3492.07 3461.12 -463. 85 2.12 5953269. 05 696467.61 N 70.27654699 W 148. 41049398 9561.52 17.99 5.09 8272.44 8335.12 3501.40 3631.14 3501.59 3470.84 -463. 09 1.19 5953278. 78 696468.12 N 70.27657352 W 148. 4104 9593.91 18.00 7.90 8303.25 8365.93 3511.13 3641.15 3511.30 3480.78 -461. 95 2.68 5953288. 74 696469.00 N 70.27660068 W 148. 41047864 9625.97 18.32 10.81 8333.71 8396.39 3520.71 3651.14 3520.85 3490.63 -460. 33 3.00 5953298. 64 696470.36 N 70.27662760 W 148. 41046549 9657.17 18.36 11.15 8363.33 8426.01 3530.05 3660.95 3530.17 3500.27 -458. 46 0.37 5953308. 32 696471.98 N 70.27665393 W 148. 41045037 9689.11 18.69 12.59 8393.61 8456.29 3539.65 3671.10 3539.74 3510.20 -456. 37 1.77 5953318. 30 696473.81 N 70.27668106 W 148. 41043348 9721.25 18.39 18.44 8424.09 8486.77 3549.08 3681.31 3549.15 3520.04 -453. 64 5.86 5953328. 20 696476.28 N 70.27670793 W 148. 41041144 9754.87 18.37 20.19 8455.99 8518.67 3558.58 3691.91 3558.62 3530.04 -450. 14 1.64 5953338. 29 696479.52 N 70.27673526 W 148. 41038308 9777.26 18.18 19.49 8477.25 8539.93 3564.85 3698.93 3564.87 3536.64 -447. 75 1.30 5953344. 96 696481.73 N 70.27675330 W 148. 41036381 9807.75 20.41 23.00 8506.03 8568.71 3573.71 3709.00 3573.72 3546.02 -444. 09 8.24 5953354. 43 696485.15 N 70.27677893 W 148. 41033417 9839.83 27.39 27.51 8535.35 8598.03 3584.65 3721.99 3584.65 3557.73 -438. 49 22.48 5953366. 28 696490.44 N 70.27681092 W 148. 41028886 9872.47 34.37 26.09 8563.34 8626.02 3598.57 3738.73 3598.58 3572.68 -430. 96 21.50 5953381. 42 696497.57 N 70.27685177 W 148. 41022797 9903.28 41.13 28.53 8587.69 8650.37 3614.13 3757.58 3614.17 3589.42 -422 .28 22.47 5953398. 38 696505.81 N 70.27689748 W 148. 41015780 9935.89 46.82 33.70 8611.15 8673.83 3631.89 3780.20 3632.03 3608.75 -410 .55 20.62 5953418. 01 696517.03 N 70.27695031 W 148. 41006291 9967.77 50.26 41.43 8632.28 8694.96 3648.85 3804.08 3649.18 3627.63 -395 .97 21.12 5953437. 27 696531.11 N 70.27700190 W 148. 40994501 9999.63 53.61 40.61 8651.92 8714.60 3665.63 3829.16 3666.26 3646.56 -379 .52 10.71 5953456. 62 696547.06 N 70.27705360 W 148. 40981189 10031.19 59.19 33.23 8669.39 8732.07 3684.58 3855.42 3685.58 3667.58 -363 .79 26.29 5953478. 04 696562.23 N 70.27711102 W 148. 40968471 10063.91 64.07 25.01 8684.96 8747.64 3707.82 3884.19 3709.25 3692.71 -349 .85 26.65 5953503. 53 696575.51 N 70.27717969 W 148 .40957190 10094.80 69.29 20.12 8697.19 8759.87 3732.49 3912.55 3734.32 3718.90 -338 .99 22.29 5953529. 99 696585.68 N 70.27725122 W 148 .4094 10127.06 73.20 12.00 8707.57 8770.25 3760.57 3943.08 3762.77 3748.22 -330 .58 26.73 5953559 .52 696593.32 N 70.27733134 W 148 .4094 10158.84 77.90 9.51 8715.50 8778.18 3789.87 3973.85 3792.39 3778.45 -324 .84 16.62 5953589 .88 696598.26 N 70.27741391 W 148 .40936966 10197.64 86.94 3.84 8720.62 8783.30 3827.19 4012.27 3830.02 3816.59 -320 .40 27.43 5953628 .13 696601.71 N 70.27751813 W 148 .40933373 10230.83 87.04 5.81 8722.36 8785.04 3859.63 4045.41 3862.70 3849.62 -317 .61 5.93 5953661 .22 696603.63 N 70.27760835 W 148 .40931119 10262.68 86.80 10.70 8724.07 8786.75 3890.31 4077.22 3893.69 3881.08 -313 .05 15.35 5953692 .79 696607.37 N 70.27769431 W 148 .40927427 10293.65 86.32 12.95 8725.93 8788.61 3919.57 4108.13 3923.35 3911.34 -306 .71 7.42 5953723 .20 696612.91 N 70.27777697 W 148 .40922304 10325.91 86.11 12.79 8728.06 8790.74 3949.84 4140.32 3954.08 3942.72 -299 .54 0.82 5953754 .75 696619.25 N 70.27786270 W 148 .40916505 10357.86 86.52 11.33 8730.12 8792.80 3979.97 4172.20 3984.68 3973.90 -292 .88 4.74 5953786 .10 696625.10 N 70.27794788 W 148 .40911117 10388.81 84.60 10.61 8732.51 8795.19 4009.32 4203.06 4014.46 4004.19 -287 .01 6.62 5953816 .53 696630.17 N 70.27803064 W 148 .40906368 10420.33 85.11 8.98 8735.34 8798.02 4039.38 4234.45 4044.95 4035.13 -281 .67 5.40 5953847 .59 696634.70 N 70.27811515 W 148 .40902049 10453.18 86.46 9.11 8737.75 8800.43 4070.86 4267.21 4076.87 4067.48 -276 .52 4.13 5953880 .06 696639.00 N 70.27820354 W 148 .40897884 10485.56 87.73 8.20 8739.39 8802.07 4102.00 4299.55 4108.44 4099.45 -271 .65 4.82 5953912 .15 696643.03 N 70.27829087 W 148 .40893948 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-236\05-23B Generated 6/25/2008 11:27 AM Page 8 of 10 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 tt ft ft de 00 tt ttUS itUS 1Ub16.y6 tSy.bb /./`J tl/4V.11 i525UZ./`J 413Z.3Z 433U.`J4 413`J.1 / 413VA3 -Lb/.Lb b.Zb b`Jb3`J43. 33 b`Jbb4b.b23 IV /U.Z/i53/DtSV VV 1423. 4Ui5`JV41 / 10549. 36 89.78 8.15 8740. 27 8802.95 4163.62 4363.34 4170.91 4162.62 -262.79 1.18 5953975. 53 696650.23 N 70.27846346 W 148. 40886784 10581. 05 90.06 6.78 8740. 32 8803.00 4194.30 4395.03 4202.01 4194.04 -258.68 4.41 5954007. 04 696653.53 N 70.27854929 W 148. 40883454 10612. 17 91.15 3.83 8739. 99 8802.67 4224.70 4426.15 4232.76 4225.02 -255.80 10.11 5954038. 09 696655.59 N 70.27863393 W 148. 40881128 10644. 87 91.26 1.05 8739. 30 8801.98 4256.95 4458.84 4265.28 4257.68 -254.41 8.51 5954070. 77 696656.13 N 70.27872316 W 148. 40880003 10676. 68 91.70 359.98 8738. 48 8801.16 4288.48 4490.64 4297.00 4289.48 -254.12 3.64 5954102. 56 696655.58 N 70.27881003 W 148. 40879772 10708. 65 90.26 357.88 8737. 93 8800.61 4320.27 4522.60 4328.94 4321.44 -254.72 7.96 5954134. 49 696654.15 N 70.27889733 W 148. 40880256 10741. 22 87.24 354.91 8738. 64 8801.32 4352.77 4555.16 4361.49 4353.93 -256.76 13.00 5954166. 91 696651.25 N 70.27898609 W 148. 40881913 10771. 88 86.66 354.24 8740. 27 8802.95 4383.37 4585.78 4392.09 4384.41 -259.66 2.89 5954197. 31 696647.56 N 70.27906936 W 148. 40884255 10803. 97 87.14 352.92 8742. 01 8804.69 4415.41 4617.82 4424.09 4416.25 -263.24 4.37 5954229. 04 696643.15 N 70.27915635 W 148. 40887154 10835. 96 88.68 350.80 8743. 18 8805.86 4447.37 4649.79 4455.94 4447.89 -267.77 8.19 5954260. 55 696637.79 N 70.27924280 W 148. 40890 10867. 88 87.55 348.52 8744. 23 8806.91 4479.22 4681.69 4487.62 4479.27 -273.49 7.97 5954291 .77 696631.25 N 70.27932853 W 148 .40895 10899. 43 88.10 347.91 8745. 42 8808.10 4510.63 4713.22 4518.81 4510.14 -279.93 2.60 5954322 .45 696624.00 N 70.27941284 W 148 .40900660 10931. 27 91.40 345.99 8745. 56 8808.24 4542.29 4745.05 4550.22 4541.15 -287.12 11.99 5954353 .26 696616.01 N 70.27949756 W 148 .40906476 10963. 18 92.70 343.49 8744. 42 8807.10 4573.85 4776.94 4581.45 4571.91 -295.51 8.83 5954383 .80 696606.81 N 70.27958160 W 148 .40913266 10995. 39 92.42 340.63 8742. 98 8805.66 4605.44 4809.12 4612.64 4602.52 -305.42 8.91 5954414 .13 696596.11 N 70.27966522 W 148 .40921285 11027. 22 92.63 335.53 8741. 58 8804.26 4636.15 4840.92 4642.86 4632.01 -317.29 16.02 5954443 .30 696583.47 N 70.27974579 W 148 .40930886 11060. 17 92.97 333.62 8739. 97 8802.65 4667.37 4873.83 4673.50 4661.73 -331.42 5.88 5954472 .64 696568.57 N 70.27982699 W 148 .40942317 11090. 38 93.94 330.18 8738. 15 8800.83 4695.50 4903.99 4701.05 4688.33 -345.62 11.81 5954498 .86 696553.68 N 70.27989964 W 148 .40953807 11122. 96 94.38 326.39 8735. 78 8798.46 4725.02 4936.48 4729.89 4715.97 -362.70 11.68 5954526 .04 696535.89 N 70.27997514 W 148 .40967624 11155. 36 94.18 322.52 8733. 36 8796.04 4753.39 4968.79 4757.57 4742.25 -381.48 11.93 5954551 .82 696516.43 N 70.28004695 W 148 .40982819 11187. 05 94.21 319.10 8731. 05 8793.73 4780.13 5000.39 4783.62 4766.74 -401.45 10.76 5954575 .78 696495.82 N 70.28011386 W 148 .40998974 11218. 58 93.35 315.68 8728. 97 8791.65 4805.71 5031.86 4808.51 4789.89 -422.74 11.16 5954598 .36 696473.93 N 70.28017710 W 148 .41016204 11250. 93 93.76 312.87 8726. 96 8789.64 4830.90 5064.14 4833.04 4812.43 -445.86 8.76 5954620 .28 696450.23 N 70.28023867 W 148 .41034906 11282. 43 93.11 309.98 8725. 07 8787.75 4854.42 5095.59 4855.98 4833.23 -469.43 9.39 5954640 .46 696426.13 N 70.28029549 W 148 .41053979 11314. 26 90.54 306.10 8724. 06 8786.74 4876.92 5127.40 4877.96 4852.83 -494.48 14.62 5954659 .40 696400.57 N 70.28034903 W 148 .41074246 11346. 72 89.41 301.47 8724. 07 8786.75 4898.12 5159.86 4898.71 4870.88 -521.45 14.68 5954676 .73 696373.14 N 70.28039832 W 148 .41096067 11378. 35 89.85 297.29 8724. 28 8786.96 4916.87 5191.49 4917.13 4886.39 -549.01 13.29 5954691 .51 696345.19 N 70.28044070 W 148 .41118361 11409. 95 92.22 293.91 8723. 71 8786.39 4933.89 5223.08 4933.95 4900.04 -577.50 13.06 5954704 .41 696316.36 N 70.28047798 W 148 .4114 11442. 05 93.11 293.72 8722. 21 8784.89 4950.32 5255.14 4950.32 4912.99 -606.83 2.83 5954716 .59 696286.70 N 70.28051335 W 148 .4116 11473. 99 91.87 292.14 8720. 83 8783.51 4966.24 5287.05 4966.34 4925.42 -636.22 6.28 5954728 .24 696256.99 N 70.28054730 W 148 .41188919 11505. 49 90.57 288.81 8720. 16 8782.84 4980.77 5318.55 4981.12 4936.43 -665.72 11.35 5954738 .48 696227.22 N 70.28057739 W 148 .41212785 11538. 33 90.71 290.26 8719 .79 8782.47 4995.44 5351.38 4996.22 4947.41 -696.66 4.44 5954748 .65 696196.00 N 70.28060738 W 148 .41237823 11569. 86 91.26 287.88 8719 .25 8781.93 5009.29 5382.91 5010.65 4957.71 -726.46 7.75 5954758 .16 696165.95 N 70.28063551 W 148 .41261928 11601. 26 91.77 282.24 8718 .42 8781.10 5021.07 5414.30 5023.19 4965.86 -756.75 18.03 5954765 .52 696135.45 N 70.28065777 W 148 .41286441 11633 .29 91.84 283.57 8717 .41 8780.09 5031.97 5446.31 5035.05 4973.01 -787.96 4.16 5954771 .85 696104.07 N 70.28067729 W 148 .41311687 11665 .24 91.12 281.50 8716 .58 8779.26 5042.65 5478.25 5046.86 4979.94 -819.14 6.86 5954777 .96 696072.72 N 70.28069622 W 148 .41336911 11696 .57 90.43 279.74 8716 .16 8778.84 5052.13 5509.58 5057.64 4985.72 -849.92 6.03 5954782 .93 696041.80 N 70.28071198 W 148 .41361821 11729 .04 90.06 279.83 8716 .02 8778.70 5061.51 5542.05 5068.55 4991.24 -881.92 1.17 5954787 .61 696009.67 N 70.28072705 W 148 .41387709 11760 .83 89.71 277.55 8716 .08 8778.76 5070.11 5573.84 5078.84 4996.04 -913.34 7.26 5954791 .58 695978.13 N 70.28074016 W 148 .41413132 11792 .85 89.34 273.87 8716 .35 8779.03 5077.15 5605.86 5087.79 4999.22 -945.20 11.55 5954793 .94 695946.21 N 70.28074885 W 148 .41438903 SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-23B\05-23B Generated 6/25/2008 11:27 AM Page 9 of 10 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 OOft ftUS ftUS 11825.05 89.23 273. 67 8716. 75 8779.43 5083.17 5638.05 5095.94 5001.34 -977.33 0.71 5954795. 21 11856.42 90.33 271. 69 8716. 87 8779.55 5088.44 5669.42 5103.48 5002.81 -1008.66 7.22 5954795. 86 11888.28 91.53 269. 59 8716. 35 8779.03 5092.68 5701.28 5110.22 5003.16 -1040.51 7.59 5954795. 38 11920.27 91.50 270. 15 8715. 51 8778.19 5096.50 5733.26 5116.75 5003.09 -1072.49 1.75 5954794. 47 11951.94 91.70 268. 34 8714. 62 8777.30 5099.95 5764.91 5123.07 5002.67 -1104.14 5.75 5954793. 22 11984.10 93.28 265. 25 8713. 23 8775.91 5102.07 5797.04 5128.33 5000.88 -1136.22 10.78 5954790. 59 12016.06 95.07 265. 08 8710. 90 8773.58 5103.28 5828.92 5132.84 4998.19 -1167.98 5.63 5954787. 07 12047.80 95.00 264. 33 8708. 11 8770.79 5104.22 5860.53 5137.26 4995.27 -1199.46 2.36 5954783. 33 12079.76 94.83 264. 00 8705. 37 8768.05 5104.86 5892.38 5141.61 4992.04 -1231.14 1.16 5954779. 27 12111.74 95.21 260. 72 8702. 58 8765.26 5104.51 5924.23 5145.15 4987.80 -1262.71 10.29 5954774. 21 12143.37 95.21 262. 32 8699. 70 8762.38 5103.70 5955.73 5148.39 4983.16 -1293.86 5.04 5954768. 75 12175.51 95.10 261. 42 8696. 82 8759.50 5103.06 5987.74 5152.07 4978.63 -1325.55 2.81 5954763. 40 12206.71 94.73 260. 97 8694. 14 8756.82 5102.09 6018.83 5155.47 4973.87 -1356.27 1.86 5954757. 84 12239.09 94.28 261. 41 8691. 60 8754.28 5101.07 6051.11 5159.19 4968.93 -1388.17 1.94 5954752. 06 12270.49 93.73 260. 89 8689. 41 8752.09 5100.05 6082.43 5162.97 4964.11 -1419.12 2.41 5954746. 43 Last Survey 12284.90 93.73 260. 53 8688. 47 8751.15 5099.48 6096.81 5164.66 4961.79 -1433.31 2.49 5954743. 74 TD (Projected) 12340.00 93.73 260. 53 8684. 88 8747.56 5097.11 6151.79 5171.31 4952.74 -1487.54 0.00 5954733. 28 Survey Type: Definitive Survey NOTES: GCT MS - (Schlumberger GCT multishot -- GCT surveys in casing or open hole. GCT = "Gyro Continuous Tool".) GYD GC SS - (Gyrodata -gyro single shots -- Gyrodata gyro orientat ion surveys. Not to be run above 70 degrees incli nation.) INC+TREND - (Inclinometer + known azi trend -- Inclination only surveys in nea r-vertical hole-where formation dip and experience ena bles direction of drift to be predicted. Replaces e x-BP "Inclino meter (azim uth in known quadrant)" model.) MWD + IFR + MS - (In-field referenced MWD with mull-station analys is and correction applied in post-processing. Assumes a BHA sag correction is applied to enhance inclination accuracy. ) Legal Description: Northing (Y ) fftUSl Easting (X) (ftUSl Surface : 3660 FSL 23 FEL S31 T11 N R15E UM 5949821.45 697021.86 BHL : 3332 FSL 1493 FEL S30 T 11 N R 15E UM 5954733.28 695405.29 695914.04 N 70.28075462 W 148.41464897 695882.68 N 70.28075862 W 148.41490247 695850.83 N 70.28075958 W 148.41516017 695818.86 N 70.28075937 W 148.41541888 695787.23 N 70.28075822 W 148.41567498 695755.22 N 70.28075330 W 148.41593447 695723.54 N 70.28074595 W 148.41619142 695692.15 N 70.28073796 W 148.41644613 695660.57 N 70.28072911 W 148.41670241 695629.12 N 70.28071752 W 148.41695782 695598.10 N 70.28070482 W 148.4172 695566.55 N 70.28069244 W 148.41746 695535.96 N 70.28067942 W 148.41771475 695504.21 N 70.28066590 W 148.41797281 695473.39 N 70.28065272 W 148.41822321 695459.27 N 70.28064637 W 148.41833802 695405.29 N 70.28062163 W 148.41877678 • SurveyEditor Ver SP 2.1 Bld( doc40x_100) 05-23\05-23\05-23B\05-236 Generated 6/25/2008 11:27 AM Page 10 of 10 TREE= 4-1116" CM/ WELLHEAD = FMC ACTUATOR= BAKERC KB. ELEV = 72' BF. ELEV = NA KOP = 3232' Max Angfe = 95° @ 12112' Datum MD = NA Datum TV D = 8800' SS PJC DRAFT 05-23 B 20" CONDUCTOR, 91.5#, 110' H-40, ID = 19.124" Minimum ID = 3.725" @ 9295' 4-1 /2" HES XN NIPPLE 10-3/4" WHIPSTOCK (05/15108) 3232" 10-3/4" EZSV (05/15/08) I 3261" 7-5/8" CSG STUB (05/14(08) 3320" 10-314" CSG, 45.5#, 3476" J-55 BTC, ID = 9.953" 3-1/2" TBG STUB (04!30!08) 8285" PERFORATION SUMMARY REF LOG: SLB ON 05/22/08 A NGLE AT TOP PERF: 90° @ 10550' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 10550 - 10810 O 05/29/08 2-7/8" 6 11120 - 11830 O 05!29/08 7" LNR, 26#, L-80 TCII XO TO L-80 BTGM 4-112" TBG, 12.6#, 13CR-80 VAM TOP, .0152 bpf, ID = 3.958" 7" LNR, 26#, L-80 BTGM, .0383 bpf, ID = 6.276" BPTD 4-1/2" TBG, 12.6#, L-80 IBT-M, .0152 bpf, ID = 3.958" 4673' 9307' I 9464' r I 12340' I 9199' I~ 4-1 /2" HES X NIP, ID = 3.813" 7" X 4-112" BKR S-3 PKR, ID = 3.870" 4-1 /2" HES X NIP. ID = 3.813" 9295' 1~4-1/2" HES XN NIP, ID = 3.725" g2gg' 7" X 5" BKR HRD ZXP LTP w / 11.77' PBR, ID = 4.410" 9307" -~4-112" WLEG, ID = 3.958" I 9321' 7" X 5" BKR FLEX-LOCK LNR HGR, ID = 4.430" 9330' 1 5" X 4-1 /2" XO, ID = 3.910" DATE REV BY COMMENTS DATE REV BY COMMENTS 12/27/90 D9 ORIG COM PL SUSPENDED 01/07/91 NZES COMPLETION 10!17!01 NORDIC 1 CTD SDTRACK (05-23A) 05!30/08 N7ES SIDETRACK (05-23B) 06/02/08 JKP/PJC GLV CIO 06107!08 ?/ PJC DRLG DRAFT CORRECTIONS PRUDHOE BAY UNlT WELL: 05-236 PERMR No: 2080610 API No: 50-029-21963-d2 SEC 31, T11N, R15E, 1619' SNL & 23' WEL BP Exploration (Alaska) 2180' ~ 4-112" HES X NIP, ID = 3.813" MILLOUT WINDOW (OS-23B) 3232' - 3248' GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LTCH PORT DATE 2 1 3182 6018 3181 5500 1 39 KBG2 KBG2 DOM SO BK BK 16 20 06/02!08 06/02/08 SCHLUMBERGER Survey report Client .................... Field ..................... Well ...................... API number ................ Engineer .................. COUNTY :................... STATE :.................... ----- Survey calculation m Method for positions.....: Method for DLS............ BP Exploration Alaska Inc Prudhoe Bay 05-23B 50-029-21963-02 J.Hudon NSB Alaska ethods------------- Minimum curvature Mason & Taylor ----- Depth reference ----------------------- Permanent datum..........: Mean Sea LEVEL Depth reference..........: Driller's Depth GL above permanent.......: 34.30 ft KB above permanent.......: NA ft DF above permanent.......: 62.68 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: 353.00 degrees v ~ [(c)2008 IDEAL ID13 OC 08] 28-May-2008 07:45:30 Page 1 of 14 Spud date ................. 16-May-08 Last survey date.........: 27-May-08 Total accepted surveys...: 366 MD of first survey.......: 0.00 ft MD of last survey........: 12284.90 ft ----- Gee Magnetic Magnetic Magnetic Magnetic Magnetic magnetic data --- model............ date ............. field strength..: dec (+E/w-)....., dip .............. ----------------- BGGM version 2007 10-May-2008 57681.52 GAMA 23.37 degrees 80.93 degrees ----- MWD survey Reference Criteria --------- Reference G ..............: 1002.68 meal Reference H ..............: 57681.50 GAMA Reference Dip ............: 80.93 degrees Tolerance of G...........: (+/-) 2.50 meal Tolerance of H...........: (+/-)300.00 LAMA Tolerance of Dip.........: (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 23.37 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-).. 23.37 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 28- May-2008 07:45:30 Page 2 of 14 --- 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) 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 BP_ GCT MS 2 28.68 0.00 0.00 28.68 28.68 0.00 0.00 0.00 0.00 0.00 0.00 BP_ GCT MS 3 34.68 0.58 225.74 6.00 34.68 -0.02 -0.02 -0.02 0.03 225.74 9.67 BP_ GCT MS 4 44.78 0.32 213.33 10.10 44.78 -0.07 -0.08 -0.07 0.11 222.56 2.73 BP_ GCT MS 5 54.98 0.22 206.51 10.20 54.98 -0.11 -0.12 -0.10 0.16 218.90 1.03 BP_ GCT MS 6 67.78 0.25 208.29 12.80 67.78 -0.15 -0.17 -0.12 0.21 216.03 0.24 BP_ GCT MS 7 81.58 0.27 207.52 13.80 81.58 -0.20 -0.22 -0.15 0.27 214.15 0.15 BP GCT MS 8 95.48 0.25 204.77 13.90 95.48 -0.26 -0.28 -0.18 0.33 212.65 0.17 - BP GCT MS 9 109.38 0.23 203.01 13.90 109.38 -0.31 -0.33 -0.20 0.39 211.35 0.15 BP_ GCT MS 10 123.38 0.23 204.07 14.00 123.38 -0.35 -0.39 -0.23 0.45 210.37 0.03 BP_ GCT MS 11 137.38 0.22 207.39 14.00 137.38 -0.40 -0.43 -0.25 0.50 209.86 0.12 BP_ GCT MS 12 150.78 0.22 209.04 13.40 150.78 -0.44 -0.48 -0.27 0.55 209.71 0.05 BP_ GCT MS 13 164.98 0.20 208.41 14.20 164.98 -0.49 -0.53 -0.30 0.60 209.62 0.14 BP_ GCT MS 14 179.28 0.18 211.63 14.30 179.28 -0.52 -0.57 -0.32 0.65 209.65 0.16 BP_ GCT MS 15 193.68 0.17 222.77 14.40 193.68 -0.55 -0.60 -0.35 0.70 210.11 0.25 BP_ GCT MS 16 208.08 0.17 233.31 14.40 208.08 -0.58 -0.63 -0.38 0.74 211.13 0.22 BP_ GCT MS 17 222.58 0.17 238.40 14.50 222.58 -0.60 -0.65 -0.42 0.78 212.46 0.10 BP_ GCT MS 18 237.18 0.20 242.59 14.60 237.18 -0.62 -0.68 -0.46 0.82 214.02 0.23 BP_ GCT MS 19 251.68 0.22 246.74 14.50 251.68 -0.63 -0.70 -0.51 0.86 215.82 0.17 BP_ GCT MS 20 266.28 0.22 250.08 14.60 266.28 -0.65 -0.72 -0.56 0.91 217.72 0.09 BP_ GCT MS 21 280.78 0.23 250.49 14.50 280.78 -0.66 -0.74 -0.61 0.96 219.55 0.07 BP _GCT MS 22 295.38 0.27 248.82 14.60 295.38 -0.67 -0.76 -0.67 1.01 221.35 0.28 BP _GCT MS 23 309.88 0.30 246.73 14.50 309.88 -0.69 -0.79 -0.74 1.08 223.05 0.22 BP _GCT MS 24 324.48 0.32 247.31 14.60 324.48 -0.72 -0.82 -0.81 1.15 224.65 0.14 BP _GCT MS 25 339.08 0.32 248.57 14.60 339.08 -0.74 -0.85 -0.89 1.23 226.15 0.05 BP _GCT MS 26 353.68 0.33 246.85 14.60 353.68 -0.76 -0.88 -0.96 1.31 227.49 0.10 BP _GCT MS 2? 368.18 0.35 245.10 14.50 368.18 -0.78 -0.92 -1.04 1.39 228.61 0.16 BP _GCT MS 28 382.68 0.35 243.62 14.50 382.68 -0.81 -0.96 -1.12 1.47 229.55 0.06 BP _GCT MS 29 397.28 0.35 240.99 14.60 397.28 -0.84 -1.00 -1.20 1.56 230.27 0.11 BP _GCT MS 30 411.78 0.38 239.74 14.50 411.78 -0.88 -1.04 -1.28 1.65 230.83 0.21 BP _GCT MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 3 of 14 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) (f t) (ft) (ft) (ft) (deg) 100f) type (deg) --- 31 -------- 426.28 ------ 0.40 238.42 14.50 426.28 -0.92 -1.09 -1.36 1.75 231.30 0.15 BP_ GCT MS 32 440.88 0.38 237.21 14.60 440.88 -0.96 -1.15 -1.45 1.85 231.65 0.15 BP_ GCT MS 33 455.28 0.38 237.95 14.40 455.27 -1.00 -1.20 -1.53 1.94 231.94 0.03 BP_ GCT MS 34 469.58 0.37 237.22 14.30 469.57 -1.04 -1.25 -1.61 2.04 232.20 0.08 BP_ GCT MS 35 483.88 0.40 234.84 14.30 483.87 -1.09 -1.30 -1.69 2.13 232.37 0.24 BP_ GCT MS 36 498.18 0.42 .234.82 14.30 498.17 -1.13 -1.36 -1.77 2.23 232.48 0.14 BP_ GCT MS 37 512.88 0.40 235.28 14.70 512.87 -1.18 -1.42 -1.86 2.34 232.60 0.14 BP GCT MS 38 528.78 0.42 234.72 15.90 528.77 -1.24 -1.49 -1.95 2.45 232.71 0.13 - BP GCT MS 39 544.58 0.45 234.51 15.80 544.57 -1.29 -1.56 -2.05 2.57 232.80 0.19 BP_ GCT MS 40 560.48 0.47 234.49 15.90 560.47 -1.35 -1.63 -2.15 2.70 232.88 0.13 BP_ GCT MS 41 576.38 0.47 233.86 15.90 576.37 -1.42 -1.71 -2.26 2.83 232.94 0.03 BP_ GCT MS 42 592.18 0.48 233.59 15.80 592.17 -1.48 -1.78 -2.36 2.96 232.97 0.06 BP_ GCT MS 43 608.08 0.48 233.81 15.90 608.07 -1.55 -1.86 -2.47 3.09 233.00 0.01 BP_ GCT MS 44 623.88 0.50 233.05 15.80 623.87 -1.61 -1.94 -2.58 3.23 233.02 0.13 BP_ GCT MS 45 639.78 0.48 233.03 15.90 639.77 -1.68 -2.02 -2.69 3.37 233.02 0.13 BP_ GCT MS 46 655.68 0.47 232.98 15.90 655.67 -1.75 -2.10 -2.79 3.50 233.02 0.06 BP_ GCT MS 47 671.48 0.50 231.74 15.80 671.47 -1.82 -2.19 -2.90 3.63 232.99 0.20 BP_ GCT MS 48 687.38 0.50 231.43 15.90 687.37 -1.89 -2.27 -3.01 3.77 232.94 0.02 BP_ GCT MS 49 703.28 0.53 231.74 15.90 703.27 -1.96 -2.36 -3.12 3.91 232.89 0.19 BP_ GCT MS 50 719.08 0.55 231.77 15.80 719.07 -2.04 -2.45 -3.24 4.06 232.85 0.13 BP_ GCT MS 51 734.98 0.55 231.84 15.90 734.97 -2.12 -2.55 -3.36 4.21 232.81 0.00 BP_ GCT MS 52 750.78 0.53 231.46 15.80 750.76 -2.20 -2.64 -3.47 4.36 232.77 0.13 BP_ GCT MS 53 766.68 0.53 231.09 15.90 766.66 -2.27 -2.73 -3.59 4.51 232.73 0.02 BP GCT MS 54 782.58 0.55 230.50 15.90 782.56 -2.35 -2.83 -3.70 4.66 232.66 0.13 BP_ GCT MS 55 798.48 0.58 229.55 15.90 798.46 -2.44 -2.93 -3.82 4.82 232.58 0.20 BP_ GCT MS 56 814.38 0.58 229.39 15.90 814.36 -2.53 -3.03 -3.95 4.98 232.48 0.01 BP _GCT MS 57 830.28 0.58 229.31 15.90 830.26 -2.62 -3.14 -4.07 5.14 232.38 0.01 BP _GCT MS 58 846.18 0.57 229.54 15.90 846.16 -2.71 -3.24 -4.19 5.30 232.29 0.06 BP _GCT MS 59 862.08 0.57 230.09 15.90 862.06 -2.79 -3.34 -4.31 5.46 232.22 0.03 BP _GCT MS 60 877.98 0.60 230.37 15.90 877.96 -2.88 -3.45 -4.44 5.62 232.16 0.19 BP _GCT MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 4 of 14 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) 61 893 88 0.60 230.55 15.90 893.86 -2.97 -3.55 -4.56 5.78 232.11 0.01 BP_ GCT MS 62 909.68 0.60 230.55 15.80 909.66 -3.06 -3.66 -4.69 5.95 232.07 0.00 BP_ GCT MS 63 925.68 0.62 231.76 16.00 925.66 -3.15 -3.76 -4.83 6.12 232.04 0.15 BP_ GCT MS 64 941.58 0.63 232.81 15.90 941.55 -3.24 -3.87 -4.96 6.29 232.05 0.10 BP_ GCT MS 65 957.38 0.65 232.59 15.80 957.35 -3.33 -3.98 -5.10 6.47 232.07 0.13 BP_ GCT MS 66 973.28 0.65 232.72 15.90 973.25 -3.42 -4.09 -5.25 6.65 232.08 0.01 BP_ GCT MS 67 989.18 0.65 233.04 15.90 989.15 -3.51 -4.20 -5.39 6.83 232.10 0.02 BP_ GCT MS 68 1005.08 0.65 233.09 15.90 1005.05 -3.60 -4.30 -5.53 7.01 232.13 0.00 BP_ GCT MS 69 1020.98 0.63 233.30 15.90 1020.95 -3.69 -4.41 -5.68 7.19 232.16 0.13 BP_ GCT MS 70 1036.88 0.63 233.44 15.90 1036.85 -3.77 -4.51 -5.82 7.36 232.18 0.01 BP_ GCT MS 71 1052.78 0.60 232.94 15.90 1052,75 -3.86 -4.62 -5.95 7.53 232.21 0.19 BP_ GCT MS 72 1068.68 0.53 233.79 15.90 1068.65 -3.93 -4.71 -6.08 7.69 232.23 0.44 BP_ GCT MS 73 1084.58 0.48 234.44 15.90 1084.55 -4.00 -4.79 -6.19 7.83 232.26 0.32 BP_ GCT MS 74 1100.48 0.48 234.36 15.90 1100.45 -4.07 -4.87 -6.30 7.96 232.30 0.00 BP_ GCT MS 75 1116.38 0.48 235.23 15.90 1116.35 -4.13 -4.95 -6.41 8.10 232.34 0.05 BP_ GCT MS 76 1132.28 0.47 237.71 15.90 1132.24 -4.19 -5.02 -6.52 8.23 232.41 0.14 BP_ GCT MS 77 1148.18 0.45 241.51 15.90 1148.14 -4.24 -5.08 -6.63 8.35 232.52 0.23 BP_ GCT MS 78 1164.08 0.43 244.07 15.90 1164.04 -4.28 -5.14 -6.74 8.47 232.66 0.18 BP_ GCT MS 79 1179.98 0.42 246.05 15.90 1179.94 -4.32 -5.19 -6.84 8.59 232.83 0.11 BP_ GCT MS 80 1195.88 0.40 247.72 15.90 1195.84 -4.35 -5.23 -6.95 8.70 233.01 0.15 BP_ GCT MS 81 1211.68 0.38 248.27 15.80 1211.64 -4.38 -5.27 -7.05 8.80 233.19 0.13 BP_ GCT MS 82 1227.58 0.37 249.18 15.90 1227.54 -4.40 -5.31 -7.15 8.90 233.37 0.07 BP _GCT MS 83 1243.48 0.35 251.55 15.90 1243.44 -4.42 -5.35 -7.24 9.00 233.56 0.16 BP _GCT MS 84 1259.38 0.35 252.60 15.90 1259.34 -4.44 -5.38 -7.33 9.09 233.75 0.04 BP _GCT MS 85 1275.28 0.35 252.98 15.90 1275.24 -4.46 -5.40 -7.43 9.18 233.95 0.01 BP _GCT MS 86 1291.18 0.33 254.65 15.90 1291.14 -4.47 -5.43 -7.52 9.27 234.15 0.14 BP _GCT MS 87 1307.08 0.30 258.14 15.90 1307.04 -4.48 -5.45 -7.60 9.35 234.35 0.22 BP _GCT MS 88 1322.88 0.25 263.65 15.80 1322.84 -4.49 -5.46 -7.68 9.42 234.55 0.36 BP _GCT MS 89 1338.78 0.22 267.69 15.90 1338.74 -4.49 -5.47 -7.74 9.48 234.76 0.22 BP _GCT MS 90 1354.68 0.20 268.70 15.90 1354.64 -4.48 -5.47 -7.80 9.53 234.95 0.13 BP _GCT MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 5 of 14 --- 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) (f t) (f t) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) --- 91 -------- 1370.58 ------ 0.17 -- 266.85 15.90 1370.54 -4.48 5.47 - 7.85 - 9.57 235.12 0.19 BP_ GCT MS 92 1386.38 0.13 260.23 15.80 1386.34 -4.47 -5.48 -7.89 9.61 235.24 0.28 BP_ GCT MS 93 1402.28 0.12 247.00 15.90 1402.24 -4.48 -5.49 -7.92 9.64 235.30 0.19 BP_ GCT MS 94 1418.18 0.12 228.76 15.90 1418.14 -4.49 -5.50 -7.95 9.67 235.31 0.24 BP_ GCT MS 95 1433.98 0.12 210.82 15.80 1433.94 -4.52 -5.53 -7.97 9.70 235.26 0.24 BP_ GCT MS 96 1449.58 0.12 193.25 15.60 1449.54 -4.54 -5.56 -7.99 9.73 235.15 0.23 BP_ GCT MS 97 1465.18 0.13 174.73 15.60 1465.14 -4.58 -5.59 -7.99 9.75 235.00 0.27 BP_ GCT MS 98 1480.78 0.15 161.13 15.60 1480.74 -4.62 -5.63 -7.98 9.77 234.79 0.25 BP_ GCT MS 99 1496.38 0.18 153.25 15.60 1496.34 -4.66 -5.67 -7.96 9.77 234.54 0.24 BP_ GCT MS 100 1511.88 0.18 145.99 15.50 1511.84 -4.70 -5.71 -7.94 9.78 234.25 0.15 BP_ GCT MS 101 1527.48 0.18 139.17 15.60 1527.44 -4.75 -5.75 -7.91 9.78 233.97 0.14 BP_ GCT MS 102 1542.98 0.22 132.76 15.50 1542.94 -4.79 -5.79 -7.87 9.77 233.65 0.30 BP_ GCT MS 103 1558.48 0.27 128.54 15.50 1558.44 -4.84 -5.83 -7.82 9.76 233.28 0.34 BP_ GCT MS 104 1574.08 0.32 127.17 15.60 1574.04 -4.89 -5.88 -7.76 9.73 232.82 0.32 BP_ GCT MS 105 1589.58 0.32 124.26 15.50 1589,54 -4.95 -5.93 -7.69 9.71 232.33 0.10 BP_ GCT MS 106 1605.18 0.33 121.46 15.60 1605.14 -5.01 -5.98 -7.61 9.68 231.84 0.12 BP_ GCT MS 107 1620.78 0.35 119.66 15.60 1620.74 -5.07 -6.03 -7.53 9.65 231.33 0.15 BP_ GCT MS 108 1636.38 0.37 117.89 15.60 1636.34 -5.12 -6.08 -7.45 9.61 230.79 0.15 BP_ GCT MS 109 1651.98 0.37 116.16 15.60 1651.94 -5.18 -6.12 -7.36 9.57 230.23 0.07 BP_ GCT MS 110 1667.48 0.37 115.03 15.50 1667.44 -5.23 -6.16 -7.27 9.53 229.69 0.05 BP_ GCT MS 111 1683.08 0.42 115.73 15.60 1683.04 -5.29 -6.21 -7.17 9.48 229.09 0.32 BP_ GCT MS 112 1698.68 0.45 117.09 15.60 1698.64 -5.36 -6.26 -7.06 9.44 228.43 0.20 BP_ GCT MS 113 1714.28 0.50 117.68 15.60 1714.24 -5.43 -6.32 -6.95 9.39 227.70 0.32 BP_ GCT MS 114 1729.78 0.52 117.46 15.50 1729.74 -5.51 -6.39 -6.83 9.35 226.90 0.13 BP _GCT MS 115 1745.3$ 0.52 116.58 15.60 1745.34 -5.59 -6.45 -6.70 9.30 226.08 0.05 BP _GCT MS 116 1760.98 0.53 117.85 15.60 1760.93 -5.67 -6.52 -6.57 9.25 225.24 0.10 BP _GCT MS 117 1776.58 0.60 120.73 15.60 1776.53 -5.76 -6.59 -6.44 9.21 224.32 0.48 BP _GCT MS 118 1792.18 0.67 121.88 15.60 1792.13 -5.87 -6.68 -6.29 9.18 223.27 0.46 BP _GCT MS 119 1807.78 0.75 123.46 15.60 1807.73 -5.99 -6.79 -6.13 9.14 222.08 0.53 BP _GCT MS 120 1823.38 0.90 125.74 15.60 1823.33 -6.14 -6.91 -5.94 9.12 220.68 0.98 BP _GCT MS [(0)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 6 of 14 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 1838.98 1.03 126.83 15.60 1838.93 -6.32 -7.07 -5.73 9.10 219.03 0.84 BP_GCT MS 122 1854.58 1.13 128.53 15.60 1854.52 -6.53 -7.25 -5.50 9.10 217.18 0.67 BP_GCT MS 123 1870.18 1.22 131.87 15.60 1870.12 -6.76 -7.46 -5.25 9.12 215.17 0.72 BP_GCT MS 124 1885.78 1.28 134.67 15.60 1885.72 -7.02 -7.69 -5.01 9.18 213.07 0.55 BP_GCT MS 125 1901.38 1.32 135.83 15.60 1901.31 -7.30 -7.94 -4.76 9.26 210.93 0.31 BP_GCT MS 126 1916.98 1.32 136.49 15.60 1916.91 -7.59 -8.20 -4.51 9.36 208.81 127 1932.58 1.30 137.06 15.60 1932.51 -7.88 -8.46 -4.26 9.47 206.75 128 1948.18 1.30 137.52 15.60 1948.10 -8.16 -8.72 -4.02 9.60 204.78 129 1963.78 1.30 138.37 15.60 1963.70 -8.45 -8.98 -3.79 9.75 202.86 130 1979.28 1.33 139.20 15.50 1979.19 -8.75 -9.25 -3.55 9.91 201.01 131 1994.88 1.33 139.27 15.60 1994.79 -9.05 -9.52 -3.32 10.09 199.20 132 2010.38 1.32 138.89 15.50 2010.29 -9.35 -9.80 -3.08 10.27 197.47 133 2025.98 1.32 138.78 15.60 2025.88 -9.64 -10.07 -2.85 10.46 195.79 134 2041.58 1.33 138.92 15.60 2041.48 -9.94 -10.34 -2.61 10.66 194.16 135 2057.18 1.33 139.00 15.60 2057.07 -10.24 -10.61 -2.37 10.87 192.59 136 2072.78 1.32 139.44 15.60 2072.67 -10.54 -10.88 -2.13 11.09 191.10 137 2088.38 1.23 139.86 15.60 2088.26 -10.83 -11.15 -1.91 11.31 189.72 138 2103.98 1.20 140.45 15.60 2103.86 -11.11 -11.40 -1.70 11.53 188.47 139 2119.48 1.22 140.73 15.50 2119.36 -11.39 -11.66 -1.49 11.75 187.29 140 2135.08 1.22 140.64 15.60 2134.95 -11.67 -11.91 -1.28 11.98 186.13 141 2150.68 1.23 140.74 15.60 2150.55 -11.95 -12.17 -1.07 12.22 185.02 142 2166.28 1.27 140.19 15.60 2166.15 -12.24 -12.43 -0.85 12.46 183.92 143 2181.78 1.25 140.55 15.50 2181.64 -12.52 -12.70 -0.63 12.71 182.86 144 2197.38 1.27 141.99 15.60 2197.24 -12.81 -12.96 -0.42 12.97 181.86 145 2212.98 1.32 142.87 15.60 2212.84 -13.12 -13.24 -0.21 13.24 180.89 146 2228.58 1.35 142.77 15.60 2228.43 -13.43 -13.53 0.01 13.53 179.94 147 2244.18 1.37 142.84 15.60 2244.03 -13.75 -13.83 0.24 13.83 179.01 148 2259.78 1.40 143.76 15.60 2259.62 -14.08 -14.13 0.46 14.14 178.12 149 2275.38 1.40 144.08 15.60 2275.22 -14.41 -14.44 0.69 14.45 177.27 150 2290.98 1.42 144.41 15.60 2290.81 -14.75 -14.75 0.91 14.78 176.46 0.10 BP _GCT MS 0.15 BP _GCT MS 0.07 BP GCT MS 0.12 BP _GCT MS 0.23 BP GCT MS 0.01 BP _GCT MS 0.09 BP _GCT MS 0.02 BP _GCT MS 0.07 BP _GCT MS 0.01 BP GCT MS 0.09 BP _GCT MS 0.58 BP _GCT MS 0.21 BP _GCT MS 0.13 BP _GCT MS 0.01 BP GCT MS 0.07 BP_ GCT MS 0.27 BP_ GCT MS 0.14 BP_ GCT MS 0.24 BP_ GCT MS 0.34 BP GCT MS 0.19 BP T GCT MS 0.13 BP _ GCT MS 0.24 BP_ GCT MS 0.05 BP_ GCT MS 0.14 BP GCT MS • [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 7 of 14 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) 151 2306.58 1.43 143.98 15.60 2306.41 -15.09 -15.06 1.14 15.11 175.67 0.09 BP_ GCT MS 152 2322.18 1.45 143.57 15.60 2322.00 -15.43 -15.38 1.37 15.44 174.91 0.14 BP_ GCT MS 153 2337.68 1.45 145.00 15.50 2337.50 -15.78 -15.70 1.60 15.78 174.18 0.23 BP_ GCT MS 154 2353.28 1.47 146.71 15.60 2353.09 -16.13 -16.03 1.82 16.13 173.51 0.31 BP_ GCT MS 155 2368.78 1.50 147.82 15.50 2368.59 -16.49 -16.36 2.04 16.49 172.89 0.27 BP_ GCT MS 156 2384.38 1.52 147.79 15.60 2384.18 -16.86 -16.71 2.26 16.86 172.30 0.13 BP_ GCT MS 157 2399.88 1.53 147.79 15.50 2399.68 -17.24 -17.06 2.48 17.24 171.73 0.06 BP_ GCT MS 158 2415.08 1.52 147.69 15.20 2414.87 -17.60 -17.40 2.70 17.61 171.20 0.07 BP_ GCT MS 159 2430.38 1.50 148.18 15.30 2430.17 -17.97 -17.75 2.91 17.98 170.69 0.16 BP_ GCT MS 160 2445.58 1.50 149.23 15.20 2445.36 -18.33 -18.09 3.12 18.35 170.22 0.18 BP_ GCT MS 161 2460.68 1.53 150.31 15.10 2460.46 -18.70 -18.43 3.32 18.73 169.80 0.27 BP_ GCT MS 162 2475.88 1.55 151.88 15.20 2475.65 -19.08 -18.79 3.51 19.11 169.41 0.31 BP_ GCT MS 163 2491.08 1.55 152.80 15.20 2490.85 -19.46 -19.15 3.71 19.51 169.05 0.16 BP_ GCT MS 164 2506.38 1.57 153.44 15.30 2506.14 -19.85 -19.52 3.89 19.91 168.72 0.17 BP_ GCT MS 165 2521.58 1.58 154.40 15.20 2521.33 -20.25 -19.90 4.08 20.31 168.42 0.19 BP_ GCT MS 166 2537.78 1.58 154.74 16.20 2537.53 -20.67 -20.30 4.27 20.75 168.13 0.06 BP_ GCT MS 167 2554.18 1.57 155.29 16.40 2553.92 -21.10 -20.71 4.46 21.19 167.85 0.11 BP_ GCT MS 168 2570.58 1.57 156.17 16.40 2570.32 -21.53 -21.12 4.64 21.62 167.60 0.15 BP_ GCT MS 169 2587.08 1.55 156.00 16.50 2586.81 -21.96 -21.53 4.83 22.07 167.37 0.12 BP_ GCT MS 170 2603.58 1.52 156.27 16.50 2603.30 -22.38 -21.94 5.00 22.50 167.15 0.19 BP_ GCT MS 171 2618.18 1.52 156.93 14.60 2617.90 -22.75 -22.29 5.16 22.88 166.97 0.12 BP _GCT MS 172 2634.78 1.52 157.56 16.60 2634.49 -23.18 -22.70 5.33 23.31 166.79 0.10 BP _GCT MS 173 2651.48 1.50 158.07 16.70 2651.19 -23.60 -23.10 5.50 23.75 166.62 0.14 BP _GCT MS 174 2668.08 1.48 158.26 16.60 2667.78 -24.02 -23.50 5.66 24.18 166.47 0.12 BP _GCT MS 175 2684.78 1.50 158.40 16.70 2684.48 -24.44 -23.91 5.82 24.61 166.33 0.12 BP _GCT MS 176 2701.38 1.52 158.85 16.60 2701.07 -24.86 -24.32 5.98 25.04 166.19 0.14 BP _GCT MS 177 2717.98 1.47 160.21 16.60 2717.66 -25.28 -24.72 6.13 25.47 166.08 0.37 BP _GCT MS 178 2734.58 1.45 162.21 16.60 2734.26 -25.70 -25.12 6.26 25.89 166.00 0.33 BP _GCT MS 179 2751.18 1.45 163.09 16.60 2750.85 -26.11 -25.52 6.39 26.31 165.95 0.13 BP _GCT MS 180 2767.78 1.43 163.21 16.60 2767.45 -26.52 -25.92 6.51 26.73 165.90 0.12 BP _GCT MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 8 of 14 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 - (f t) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 181 2784.28 1.45 163.91 16.50 2783.94 -26.93 -26.32 6.63 27.14 165.87 0.16 BP_ GCT MS 182 2800.88 1.45 164.02 16.60 2800.54 -27.35 -26.72 6.74 27.56 165.84 0.02 BP_ GCT MS 183 2817.38 1.45. 164.07 16.50 2817.03 -27.76 -27.12 6.86 27.98 165.81 0.01 BP_ GCT MS 184 2833.98 1.42 164.55 16.60 2833.63 -28.17 -27.52 6.97 28.39 165.79 0.19 BP_ GCT MS 185 2850.58 1.38 164.54 16.60 2850.22 -28.57 -27.92 7.08 28.80 165.77 0.24 BP_ GCT MS 186 2867.28 1.37 164.45 16.70 2866.92 -28.97 -28.30 7.19 29.20 165.76 0.06 BP_ GCT MS 187 2883.88 1.38 164.78 16.60 2883.51 -29.36 -28.69 7.29 29.60 165.74 0.08 BP_ GCT MS 188 2900.48 1.42 165.71 16.60 2900.11 -29.76 -29.08 7.39 30.00 165.73 0.28 BP_ GCT MS 189 2917.18 1.43 166.49 16.70 2916.80 -30.17 -29.48 7.49 30.42 165.74 0.13 BP_ GCT MS 190 2933.78 1.43 167.12 16.60 2933.40 -30.59 -29.88 7.59 30.83 165.75 0.09 BP_ GCT MS 191 2950.48 1.43 167.38 16.70 2950.09 -31.00 -30.29 7.68 31.25 165.77 0.04 BP_ GCT MS 192 2967.08 1.40 168.15 16.60 2966.69 -31.41 -30.69 7.77 31.66 165.80 0.21 BP_ GCT MS 193 2983.78 1.40 170.63 16.70 2983.38 -31.82 -31.09 7.84 32.07 165.84 0.36 BP_ GCT MS 194 3000.38 1.40 171.43 16.60 2999.98 -32.22 -31.49 7.91 32.47 165.91 0.12 BP_ GCT MS 195 3016.98 1.40 171.52 16.60 3016.57 -32.63 -31.89 7.97 32.87 165.98 0.01 BP_ GCT MS 196 3033.58 1.40 173.02 16.60 3033.17 -33.03 -32.30 8.02 33.28 166.05 0.22 BP_ GCT MS 197 3050.18 1.42 173.90 16.60 3049.76 -33.44 -32.70 8.07 33.68 166.14 0.18 BP_ GCT MS 198 3066.78 1.42 174.76 16.60 3066.36 -33.85 -33.11 8.11 34.09 166.24 0.13 BP_ GCT MS 199 3083.38 1.40 176.14 16.60 3082.95 -34.26 -33.52 8.14 34.49 166.35 0.24 BP_ GCT MS 200 3099.98 1.38 178.00 16.60 3099.55 -34.66 -33.92 8.16 34.89 166.47 0.30 BP_ GCT MS 201 3116.58 1.38 178.73 16.60 3116.14 -35.06 -34.32 8.17 35.28 166.61 0.11 BP_ GCT MS 202 3133.18 1.38 179.30 16.60 3132.74 -35.46 -34.72 8.18 35.67 166.74 0.08 BP_ GCT MS 203 3149.78 1.37 180.88 16.60 3149.33 -35.85 -35.12 8.18 36.06 166.89 0.24 BP_ GCT MS 204 3166.48 1.32 183.44 16.70 3166.03 -36.24 -35.51 8.16 36.44 167.05 0.47 BP_ GCT MS 205 3183.08 1.25 185.97 16.60 3182.62 -36.60. -35.88 8.13 36.79 167.23 0.54 BP_ GCT MS 206 3199.78 1.23 187.14 16.70 3199.32 -36.96 -36.24 8.09 37.13 167.41 0.19 BP _GCT MS 207 3232.00 1.13 188.82 32.22 3231.53 -37.60 -36.90 8.00 37.75 167.77 0.33 BP _GCT MS 208 3248.00 1.70 273.78 16.00 3247.53 -37.70 -37.04 7.74 37.84 168.20 12.23 BP _BLIND 209 3260.00 3.22 273.78 12.00 3259.52 -37.61 -37.00 7.23 37.70 168.95 12.67 BP _GYD SS 210 3314.00 6.28 261.34 54.00 3313.33 -37.41 -37.35 2.79 37.45 175.73 5.95 BP _GYD SS ~J [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 9 of 14 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) 211 3406.00 10.60 273.76 92.00 3404.32 -35.97 -37.55 -10.63 39.03 195.81 5.07 BP_ GYD SS 212 3502.00 12.81 296.59 96.00 3498.37 -28.43 -32.20 -28.97 43.32 221.98 5.30 BP_ GYD SS 213 3532.95 13.16 305.01 30.95 3528.53 -24.18 -28.65 -34.93 45.17 230.64 6.21 BP_ MWD+IFR+MS 214 3628.33 15.27 322.13 95.38 3621.02 -6.12 -12.49 -51.54 53.03 256.37 4.91 BP_ MWD+IFR+MS 215 3723.93 19.70 332.74 95.60 3712.20 19.82 11.79 -66.66 67.69 280.03 5.69 BP MWD+IFR+MS 216 3820.64 24.37 339.37 96.71 3801.84 54.53 44.97 -81.17 92.79 298.99 5.46 BP_ MWD+IFR+MS 217 3915.96 29.49 347.09 95.32 3886.82 97.02 86.29 -93.35 127.12 312.75 6.49 BP _ MWD+IFR+MS 218 4009.72 34.56 349.77 93.76 3966.29 146.56 134.99 -103.24 169.94 322.59 5.61 - BP . MWD+IFR+MS 219 4104.80 39.38 351.43 95.08 4042.23 203.67 191.38 -112.53 222.01 329.55 5.18 BP_ MWD+IFR+MS 220 4201.35 40.56 351.22 96.55 4116.23 265.67 252.70 -121.88 280.55 334.25 1.23 BP MWD+IFR+MS 221 4296.04 41.56 351.93 94.69 4187.63 327.84 314.22 -130.99 340.43 337.37 1.17 BP ^ MWD+IFR+MS 222 4391.51 42.29 351.38 95.47 4258.66 391.61 377.33 -140.25 402.55 339.61 0.86 BP _ MWD+IFR+MS 223 4487.48 40.50 353.26 95.97 4330.65 455.06 440.21 -148.75 464.66 341.33 2.27 BP_ MWD+IFR+MS 224 4584.00 40.03 352.73 96.52 4404.30 517.44 502.13 -156.35 525.91 342.70 0.60 BP_ MWD+IFR+MS 225 4678.64 39.85 352.13 94.64 4476.86 578.20 562.36 -164.36 585.88 343.71 0.45 BP MWD+IFR+MS 226 4774.44 40.29 351.77 95.80 4550.17 639.85 623.42 -172.99 646.97 344.49 0.52 BP_ MWD+IFR+MS 227 4870.05 39.92 351.18 95.61 4623.30 701.42 684.33 -182.12 708.15 345.10 0.55 BP_ MWD+IFR+MS 228 4966.10 40.94 352.08 96.05 4696.42 763.69 745.95 -191.19 770.06 345.62 1.22 BP_ MWD+IFR+MS 229 5061.82 41.74 351.97 95.72 4768.28 826.91 808.57 -199.96 832.92 346.11 0.84 BP_ MWD+IFR+MS 230 5157.97 41.25 354.47 96.15 4840.31 890.60 871.81 -207.48 896.16 346.61 1.80 BP MWD+IFR+MS 231 5252.90 41.39 354.65 94.93 4911.60 953.26 934.21 -213.43 958.28 347.13 0.19 BP MWD+IFR+MS 232 5348.74 39.59 355.72 95.84 4984.49 1015.44 996.22 -218.66 1019.93 347.62 2.01 BP _ MWD+IFR+MS ~ 233 5444.05 39.44 355.58 95.31 5058.02 1076.02 1056.68 -223.26 1080.01 348.07 0.18 BP MWD+IFR+MS 234 5539.49 39.16 355.56 95.44 5131.87 1136.41 1116.95 -227.93 1139.97 348.47 0.29 BP _MWD+IFR+MS 235 5634.87 39.74 354.10 95.38 5205.52 1196.98 1177.31 -233.39 1200.22 348.79 1.15 BP MWD+IFR+MS 236 5731.44 40.03 354.41 96.57 5279.62 1258.89 1238.92 -239.59 1261.88 349.05 0.36 BF _MWD+IFR+MS 237 5826.33 39.90 353.97 94.89 5352.35 1319.82 1299.56 -245.76 1322.59 349.29 0.33 BP _MWD+IFR+MS 238 5921.15 39.70 353.73 94.82 5425.20 1380.51 1359.90 -252.26 1383.10 349.49 0.27 BP MWD+IFR+MS 239 6016.88 39.28 353.32 95.73 5499.08 1441.39 1420.39 -259.13 1443.84 349.66 0.52 BP _MWD+IFR+MS 240 6113.01 39.39 354.40 96.13 5573.43 1502.31 1480.98 -265.64 1504.61 349.83 0.72 BP MWD+IFR+MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28 -May-2008 07:45:30 Page 10 of 14 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) (f t) (deg) 100f) type (deg) 241 6208 40 40 87 353.06 95,39 5646.36 1563.78 1542.08 -272.37 1565.95 349.98 1.80 BP_ MWD+IFR+MS 242 6303.93 41.74 353.81 95.53 5718.13 1626.83 1604.72 -279.58 1628.90 350.12 1.05 BP_ MWD+IFR+MS 243 6399.59 40.90 351.33 95.66 5789.97 1689.98 1667.35 -287.73 1691.99 350.21 1.92 BP_ MWD+IFR+MS 244 6494.80 41.71 351.57 95.21 5861.50 1752.80 1729.49 -297.07 1754.82 350.25 0.87 BP_ MWD+IFR+MS 245 6590.47 40.00 349.54 95.67 5933.86 1815.32 1791.22 -307.32 1817.39 350.26 2.26 BP_ MWD+IFR+MS 246 6686.24 40.82 349.04 95.77 6006.78 1877.27 1852.22 -318.86 1879.47 350.23 0.92 BP _MWD+IFR+MS 247 6781.74 41.80 349.37 95.50 6078.51 1940.18 1914.15 -330.67 1942.50 350.20 1.05 BP _MWD+IFR+MS 248 6877.56 41.02 350.73 95.82 6150.38 2003.47 1976.57 -341.62 2005.87 350.19 1.24 BP _ MWD+IFR+MS 249 6973.43 40.79 351.24 95.87 6222.84 2066.21 2038.57 -351.46 2068.64 350.22 0.42 BP _MWD+IFR+MS 250 7069.02 40.90 351.09 95.59 6295.15 2128.69 2100.34 -361.06 2131.15 350.25 0.15 BP _MWD+IFR+MS 251 7164.89 40.69 351.10 95.87 6367.73 2191.29 2162.23 -370.76 2193.78 350.27 0.22 BP _MWD+IFR+MS 252 7259.30 41.34 350.67 94.41 6438.96 2253.21 2223.40 -380.57 2255.74 350.29 0.75 BP _MWD+IFR+MS 253 7354.80 41.41 354.64 95.50 6510.64 2316.30 2285.98 -388.64 2318.78 350.35 2.75 BP _MWD+IFR+MS 254. 7450.37 40.57 353.72 95.57 6582.78 2378.97 2348.34 -394.99 2381.33 350.45 1.08 BP _MWD+IFR+MS 255 7546.77 39.84 353.55 96.40 6656.40 2441.20 2410.19 -401.89 2443.46 350.53 0.77 BP _MWD+IFR+MS 256 7641.51 41.36 355.47 94.74 6728.34 2502.82 2471.55 -407.77 2504.96 350.63 2.08 BP _MWD+IFR+MS 257 7737.63 40.87 355.19 96.12 6800.75 2565.98 2534.55 -412.92 2567.96 350.75 0.54 BP _MWD+IFR+MS 258 7832.93 40.76 355.40 95.30 6872.88 2628.22 2596.63 -418.03 2630.06 350.85 0.18 BP _MWD+IFR+MS 259 7929.23 40.48 355.39 96.30 6945.97 2690.86 2659.12 -423.06 2692.56 350.96 0.29 BP _MWD+IFR+MS 260 8024.01 39.75 354.16 94.78 7018.46 2751.89 2719.93 -428.62 2753.50 351.04 1.14 BP _MWD+IFR+MS 261 8119.87 40.26 354.60 95.86 7091.89 2813.50 2781.26 -434.65 2815.02 351.12 0.61 BP _MWD+IFR+MS 262 8216.45 39.65 356.01 96.58 7165.92 2875.47 2843.07 -439.73 2876.88 351.21 1.13 BP _MWD+IFR+MS • 263 8310.58 39.79 357.01 94.13 7238.32 2935.51 2903.11 -443.39 2936.77 351.32 0.69 BP _MWD+IFR+MS 264 8406.78 39.75 359.50 96.20 7312.27 2996.78 2964.61 -445.27 2997.86 351.46 1.66 BP _MWD+IFR+MS 265 8502.77 38.50 359.20 95.99 7386.73 3056.97 3025.18 -445.95 3057.87 351.61 1.32 BP _MWD+IFR+MS 266 8598.02 37.81 357.37 95.25 7461.63 3115.56 3083.99 -447.70 3116.32 351.74 1.39 BP _MWD+IFR+MS 267 8693.78 36.64 357.20 95.76 7537.88 3173.33 3141.85 -450.45 3173.98 351.84 1.23 BP _MWD+IFR+MS 268 8789.80 33.92 357.77 96.02 7616.26 3228.61 3197.25 -452.89 3229.17 351.94 2.85 BP _MWD+IFR+MS 269 8885.94 28.24 356.46 96.14 7698.57 3278.09 3246.80 -455.34 3278.57 352.02 5.95 BP _MWD+IFR+MS 270 8981.42 21.79 358.60 95.48 7785.05 3318.32 3287.10 -457.17 3318.74 352.08 6.82 BP _MWD+IFR+MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28 -May-2008 07:45:30 Page 11 of 14 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) 271 9077.34 17.58 357.68 95.92 7875.34 3350.49 3319.39 -458.19 3350.86 352.14 4.40 BP_ MWD+IFR+MS 272 9171.86 17.52 356.77 94.52 7965.46 3378.91 3347.86 -459.57 3379.25 352.18 0.30 BP_ MWD+IFR+MS 273 9267.48 19.30 356.17 95.62 8056.19 3409.05 3378.00 -461.44 3409.37 352.22 1.87 BP_ MWD+IFR+MS 274 9362.98 18.94 357.15 95.50 8146.42 3440.27 3409.22 -463.26 3440.55 352.26 0.51 BP MWD+IFR+MS 275 9403.50 18.31 356.50 40.52 8184.81 3453.18 3422.14 -463.98 3453.45 352.28 1.64 BP MWD+IFR+MS 276 9465.83 17.80 0.17 62.33 8244.08 3472.41 3441.44 -464.55 3472.66 352.31 2.00 BP_ INC+TREND 277 9496.79 17.76 1.92 30.96 8273.56 3481.77 3450.89 -464.38 3482.00 352.34 1.73 BP INC+TREND 278 9530.07 18.10 3.93 33.28 8305.22 3491.86 3461.13 -463.85 3492.07 352.37 2.12 - BP MWD+IFR+MS 279 9561.52 17.99 5.09 31.45 8335.13 3501.40 3470.84 -463.09 3501.59 352.40 1.19 BP_ MWD+IFR+MS 280 9593.91 18.00 7.90 32.39 8365.93 3511.13 3480.78 -461.95 3511.30 352.44 2.68 BP MWD+IFR+MS 281 9625.97 18.32 10.81 32.06 8396.39 3520.71 3490.63 -460.33 3520.85 352.49 3.00 BP MWD+IFR+MS 282 9657.17 18.36 11.15 31.20 8426.01 3530.05 3500.27 -458.46 3530.17 352.54 0.37 BP_ MWD+IFR+MS 283 9689.11 18.69 12.59 31.94 8456.29 3539.65 3510.20 -456.37 3539.74 352.59 1.77 BP_ MWD+IFR+MS 284 9721.25 18.39 18.44 32.14 8486.77 3549.08 3520.04 -453.64 3549.15 352.66 5.86 BP_ MWD+IFR+MS 285 9754.87 18.37 20.19 33.62 8518.67 3558.58 3530.04 -450.14 3558.62 352.73 1.64 BP MWD+IFR+MS 286 9777.26 18.18 19.49 22.39 8539.94 3564.85 3536.64 -447.75 3564.87 352.78 1.30 BP_ MWD+IFR+MS 287 9807.75 20.41 23.00 30.49 8568.71 3573.71 3546.02 -444.09 3573.72 352.86 8.24 BP_ MWD+IFR+MS 288 9839.83 27.39 27.51 32.08 8598.03 3584.65 3557.73 -438.49 3584.65 352.97 22.48 BP_ MWD+IFR+MS 289 9872.47 34.37 26.09 32.64 8626.02 3598.57 3572.68 -430.96 3598.58 353.12 21.50 BP_ MWD+IFR+MS 290 9903.28 41.13 28.53 30.81 8650.37 3614.13 3589.42 -422.28 3614.17 353.29 22.47 BP MWD+IFR+MS 291 9935.89 46.82 33.70 32.61 8673.83 3631.89 3608.75 -410.55 3632.03 353.51 20.62 BP MWD+IFR+MS 292 9967.77 50.26 41.43 31.88 8694.96 3648.85 3627.63 -395.97 3649.18 353.77 21.12 _ BP _MWD+IFR+MS • 293 9999.63 53.61 40.61 31.86 8714.60 3665.63 3646.56 -379.52 3666.26 354.06 10.71 BP _MWD+IFR+MS 294 10031.19 59.19 33.23 31.56 8732.07 3684.57 3667.58 -363.79 3685.58 354.34 26.29 BP _MWD+IFR+MS 295 10063.91 64.07 25.01 32.72 8747.64 3707.82 3692.71 -349.85 3709.25 354.59 26.65 BP MWD+IFR+MS 296 10094.80 69.29 20.12 30.89 8759.87 3732.49 3718.90 -338.99 3734.31 354.79 22.29 BP _MWD+IFR+MS 297 10127.06 73.20 12.00 32.26 8770.25 3760.57 3748.22 -330.58 3762.77 354.96 26.73 BP _MWD+IFR+MS 298 10158.84 77.90 9.51 31.78 8778.18 3789.87 3778.45 -324.84 3792.39 355.09 16.62 BP _MWD+IFR+MS 299 10197.64 86.94 3.84 38.80 8783.30 3827.19 3816.59 -320.40 3830.02 355.20 27.43 BP _MWD+IFR+MS 300 10230.83 87.04 5.81 33.19 8785.04 3859.63 3849.62 -317.61 3862.70 355.28 5.93 BP MWD+IFR+MS [(0)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28-May-2008 07:45:30 Page 12 of 14 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) 301 10262.68 86.80 10.70 31.85 8786.75 3890.31 3881.08 -313.05 3893.69 355.39 15.35 BP _MWD+IFR+MS 302 10293.65 86.32 12.95 30.97 8788.61 3919.56 3911.34 -306.71 3923.35 355.52 7.42 BP _MWD+IFR+MS 303 10325.91 86.11 12.79 32.26 8790.74 3949.84 3942.72 -299.54 3954.08 355.66 0.82 BP MWD+IFR+MS ` 304 10357.86 86.52 11.33 31.95 8792.80 3979.97 3973.90 -292.88 3984.68 355.78 4.74 BP MWD+IFR+MS 305 10388.81 84.60 10.61 30.95 8795.19 4009.32 4004.19 -287.01 4014.46 355.90 6.62 BP MWD+IFR+MS 306 10420.33 85.11 8.98 31.52 8798.02 4039.38 4035.13 -281.67 4044.95 356.01 5.40 BP _MWD+IFR+MS 307 308 10453.18 10485.56 86.46 87.73 9.11 8.20 32.85 32.38 8800.43 8802.07 4070.86 4102.00 4067.48 4099.45 -276.52 -271.65 4076.87 4108.44 356.11 356.21 4.13 4.82 BP BP -_MWD+IFR+MS MWD+IFR+MS 309 10516.96 89.65 7.79 31.40 8802.79 4132.32 4130.53 -267.28 4139.17 356.30 6.25 BP _MWD+IFR+MS 310 10549.36 89.78 8.15 32.40 8802.95 4163.62 4162.62 -262.79 4170.91 356.39 1.18 BP MWD+IFR+MS 311 10581.05 90.06 6.78 31.69 8803.00 4194.30 4194.04 -258.68 4202.01 356.47 4.41 BP _MWD+IFR+MS 312 10612.17 91.15 3.83 31.12 8802.67 4224.70 4225.02 -255.80 4232.76 356.54 10.11 BP _MWD+IFR+MS 313 10644.87 91.26 1.05 32.70 8801.98 4256.95 4257.68 -254.41 4265.28 356.58 8.51 BP _MWD+IFR+MS 314 10676.68 91.70 359.98 31.81 8801.16 4288.48 4289.48 -254.12 4297.00 356.61 3.64 BP _MWD+IFR+MS 315 10708.65 90.26 357.88 31.97 8800.61 4320.27 4321.44 -254.72 4328.94 356.63 7.96 BP MWD+IFR+MS 316 10741.22 87.24 354.91 32.57 8801.32 4352.76 4353.93 -256.76 4361.49 356.63 13.00 BP MWD+IFR+MS 317 10771.88 86.66 354.24 30.66 8802.96 4383.37 4384.41 -259.66 4392.09 356.61 2.89 BP _MWD+IFR+MS 318 10803.97 87.14 352.92 32.09 8804.69 4415.41 4416.25 -263.24 4424.09 356.59 4.37 BP _MWD+IFR+MS 319 10835.96 88.68 350.80 31.99 8805.86 4447.37 4447.89 -267.77 4455.94 356.55 8.19 BP _MWD+IFR+MS 320 10867.88 87.55 348.52 31.92 8806.91 4479.22 4479.27 -273.49 4487.62 356.51 7.97 BP MWD+IFR+MS 321 10899.43 88.10 347.91 31.55 8808.10 4510.63 4510.14 -279.93 4518.81 356.45 2.60 BP MWD+IFR+MS 322 10931.27 91.40 345.99 31.84 8808.24 4542.29 4541.15 -287.12 4550.22 356.38 11.99 BP _ _MWD+IFR+MS 323 10963.18 92.70 343.49 31.91 8807.10 4573.85 4571.91 -295.51 4581.45 356.30 8.83 BP _MWD+IFR+MS 324 10995.39 92.42 340.63 32.21 8805.66 4605.43 4602.52 -305.42 4612.64 356.20 8.91 BP _MWD+IFR+MS 325 11027.22 92.63 335.53 31.83 8804.26 4636.15 4632.01 -317.29 4642.86 356.08 16.02 BP MWD+IFR+MS 326 11060.17 92.97 333.62 32.95 8802.65 4667.37 4661.73 -331.42 4673.50 355.93 5.88 BP _MWD+IFR+MS 327 11090.38 93.94 330.18 30.21 8800.83 4695.50 4688.33 -345.62 4701.05 355.78 11.81 BP _MWD+IFR+MS 328 11122.96 94.38 326.39 32.58 8798.46 4725.02 4715.97 -362.70 4729.89 355.60 11.68 BP _MWD+IFR+MS 329 11155.36 94.18 322.52 32.40 8796.04 4753.39 4742.25 -381.48 4757.57 355.40 11.93 BP _MWD+IFR+MS 330 11187.05 94.21 319.10 31.69 8793.73 4780.14 4766.74 -401.45 4783.62 355.19 10.76 BP MWD+IFR+MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28 -May-2008 07:45:30 Page 13 of 14 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) (f t) (ft) (f t) (ft) (ft) (deg) 100f) type (deg) 331 11218.58 93.35 315.68 31.53 8791.65 4805.71 4789.89 -422.74 4808.51 354.96 11.16 BP_ MWD+IFR+MS 332 11250.93 93.76 312.87 32.35 8789.64 4830.90 4812.43 -445.86 4833.04 354.71 8.76 BP_ MWD+IFR+MS 333 11282.43 93.11 309.98 31.50 8787.75 4854.42 4833.23 -469.43 4855.98 354.45 9.39 BP_ MWD+IFR+MS 334 11314.26 90.54 306.10 31.83 8786.74 4876.92 4852.83 -494.48 4877.96 354.18 14.62 BP_ MWD+IFR+MS 335 11346.72 89.41 301.47 32.46 8786.75 4898.12 4870.88 -521.45 4898.71 353.89 14.68 BP MWD+IFR+MS 336 11378.35 89.85 297.29 31.63 8786.96 4916.87 4886.39 -549.01 4917.13 353.59 13.29 BP_ MWD+IFR+MS 337 338 11409.95 11442.05 92.22 93.11 293.91 293.72 31.60 32.10 8786.39 8784.90 4933.89 4950.32 4900.04 4912.99 -577.50 -606.83 4933.95 4950.32 353.28 352.96 13.06 2.83 BP__ BP MWD+IFR+MS MWD+IFR+MS • 339 11473.99 91.87 292.14 31.94 8783.51 4966.24 4925.42 -636.22 4966.34 352.64 6.28 BP_ MWD+IFR+MS 340 11505.49 90.57 288.81 31.50 8782.84 4980.77 4936.43 -665.72 4981.12 352.32 11.35 BP MWD+IFR+MS 341 11538.33 90.71 290.26 32.84 8782.47 4995.44 4947.41 -696.66 4996.22 351.98 4.44 BP_ MWD+IFR+MS 342 11569.86 91.26 287.88 31.53 8781.93 5009.29 4957.71 -726.46 5010.65 351.66 7.75 BP_ MWD+IFR+MS 343 11601.26 91.77 282.24 31.40 8781.10 5021.07 4965.86 -756.75 5023.19 351.34 18.03 BP MWD+IFR+MS 344 11633.29 91.84 283.57 32.03 8780.09 5031.97 4973.01 -787.96 5035.05 351.00 4.16 BP_ MWD+IFR+MS 345 11665.24 91.12 281.50 31.95 8779.26 5042.65 4979.95 -819.13 5046.86 350.66 6.86 BP MWD+IFR+MS 346 11696.57 90.43 279.74 31.33 8778.84 5052.14 4985.72 -849.92 5057.64 350.33 6.03 BP_ MWD+IFR+MS 347 11729.04 90.06 279.83 32.47 8778.70 5061.51 4991.24 -881.92 5068.55 349.98 1.17 BP_ MWD+IFR+MS 348 11760.83 89.71 277.55 31.79 8778.76 5070.11 4996.04 -913.34 5078.84 349.64 7.26 BP T MWD+IFR+MS 349 11792.85 89.34 273.87 32.02 8779.03 5077.15 4999.22 -945.20 5087.79 349.29 11.55 BP _ MWD+IFR+MS 350 11825.05 89.23 273.67 32.20 8779.43 5083.17 5001.34 -977.33 5095.94 348.94 0.71 BP MWD+IFR+MS 351 11856.42 90.33 271.69 31.37 8779.55 5088.44 5002.81 -1008.66 5103.48 348.60 7.22 BP MWD+IFR+MS 352 11888.28 91.53 269.59 31.86 8779.03 5092.68 5003.16 -1040.51 5110.22 348.25 7.59 _ BP_ MWD+IFR+MS 353 11920.27 91.50 270.15 31.99 8778.19 5096.50 5003.09 -1072.49 5116.75 347.90 1.75 BP_ MWD+IFR+MS 354 11951.94 91.70 268.34 31.67 8777.30 5099.95 5002.67 -1104.14 5123.07 347.55 5.75 BP_ MWD+IFR+MS 355 11984.10 93.28 265.25 32.16 8775.91 5102.07 5000.88 -1136.22 5128.33 347.20 10.78 BP MWD+IFR+MS 356 12016.06 95.07 265.08 31.96 8773.58 5103.28 4998.19 -1167.98 5132.85 346.85 5.63 BP_ MWD+IFR+MS 357 12047.80 95.00 264.33 31.74 8770.79 5104.22 4995.27 -1199.46 5137.26 346.50 2.36 BP_ MWD+IFR+MS 358 12079.76 94.83 264.00 31.96 8768.05 5104.87 4992.04 -1231.14 5141.61 346.15 1.16 BP_ MWD+IFR+MS 359 12111.74 95.21 260.72 31.98 8765.25 5104.51 4987.80 -1262.71 5145.15 345.79 10.29 BP_ MWD+IFR+MS 360 12143.37 95.21 262.32 31.63 8762.38 5103.70 4983.16 -1293.86 5148.39 345.44 5.04 BP MWD+IFR+MS [(c)2008 IDEAL ID13 OC 08] SCHLUMBERGER Survey Report 28 -May-2008 07:45:30 Page 14 of 14 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 - (f t) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 361 12175.51 95.10 261.42 32.14 8759.50 5103.07 4978.63 -1325.55 5152.07 345.09 2.81 BP_MWD+IFR+MS 362 12206.71 94.73 260.97 31.20 8756.82 5102.09 4973.87 -1356.27 5155.47 344.75 1.86 BP MWD+IFR+MS 363 12239.09 94.28 261.41 32.38 8754.28 5101.07 4968.93 -1388.17 5159.19 344.39 1.94 BP_MWD+IFR+MS 364 12270.49 93.73 260.89 31.40 8752.09 5100.06 4964.11 -1419.12 5162.97 344.05 2.41 BP_MWD+IFR+MS 365 12284.90 93.73 260.53 14.41 8751.15 5099.48 4961.79 -1433.31 5164.66 343.89 2.49 $P MWD+IFR+MS 366 12340.00 93.73 260.53 55.10 8747.56 5097.11 4952.74 -1487.54 5171.31 343.28 0.00 Project to TD [(c)2008 IDEAL ID13 OC 08] • Senl~n~~erger Drilling 8~ Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Well No 05-23B Installation/Rig Nabors 7ES Dispatched To: Christine Mahnken Date Dispatched: 12-May-08 Dispatched By: F. Medina Data No Of Prints No of Flo ies Surveys 2 1 Received By: Please sign and return to: Drilling & Measurements LWD Division 2525 Gambell Street, Suite 400 Anchorage, Alaska 99501 fGarke3@slb.com Fax: 907-561-8317 LWD Log Delivery V2.1, 03-06-06 • Page 1 of 1 Maunder, Thomas E (DOA) From: Phillips, Ron [Ron.Phillips cLDbp.com] Sent: Thursday, April 24, 2008 6:10 AM To: Maunder, Thomas E (DOA) Subject; RE: DS 05-23B Tom, The 7" is going to be one string of casing from the 8-1/2" TD all the way back to surface. We do plan to cross over from BTC-M threads to gas tight TC-II threads 500' below the top of cement. There will not be a drilling liner with a tieback. The 401 and the proposed well bore schematic are correct showing the 7" casing back to surface. In one spot on the operations summary I did incorrectly refer to the 7" casing as a drilling Liner. Thanks, Ron Phillips Operations Drilling Engineer GPB Rotary Office (907) 564-5913 Cell (907) 748-7868 From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Wednesday, April 23, 2008 5:41 PM To: Phillips, Ron Cc: Tirpack, Robert B Subject: DS 05-236 Ron and Robert, I am reviewing the permit application and have a question. 1. On the 401, the 7" is shown to extend from surface to TD of the 8-1/2" hole but it is referred to as a gdrilling liner". Will the 7" be run as a casing or as a liner with a tieback? Thanks in advance, Tom Maunder, PE AOGCC 4/24/2008 ~. ~ ~~ ~ ~~ } ~ 4 3 ~... i 1 Y ALASSA OIL AATD GAS CO1~T5ERQATIOIK COMl-'IISSIOIQ Robert Tirpack Engineering Team Leader BP Exploration Alaska, Inc. PO Box 196612 Anchorage, AK 99519-6612 • SARAH PALIN, GOVERNOR 333 W. 7th AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 05-23B BP Exploration Alaska, Inc. Permit No: 208-061 Surface Location: 1619' FNL, 23' FEL, SEC. 31, T11N, R15E, UM Bottomhole Location: 1935' FNL, 1391' FWL, SEC. 30, T11N, R15E, UM Dear Mr. Tirpack: 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 specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. When providing notice for a representative of the Commission to witness required test, contact the Commission's petroleum field inspector at (907 65 -3607 (pager). DATED this day of April, 2008 cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ~"~"'v° ALAS~IL AND GAS CONSERVATION COMMI~N PERMIT TO DRILL ~-''~~~~ ECEIVED APR 1 8 2008 20 AAC 25.005 i~iaska Oil & Gas Cons. Commission I 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. Specify if well is propd~dlfENyd9@ ^ Coalbed Methane ^ Gas Hydrates ^ Shale Gas 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 11. Well Name and Number: PBU 05-236 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 12231' TVD 8798' 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay 4a. Location of Well (Governmental Section): Surface: 1619' FNL 23' FEL SEC 31 T11N R15E UM 7. Property Designation: ADL 028326 Pool , , . , , , Top of Productive Horizon: 3089' FNL, 4545' FWL, SEC. 30, T11 N, R15E, UM 8. Land Use Permit: 13. Approximate Spud Date: May 13, 2008 Total Depth: 1935' FNL, 1391' FWL, SEC. 30, T11 N, R15E, UM 9. Acres in Property: 2560 14. Distance to Nearest Property: 21000' 4b. Location of Well (State Base Plane Coordinates): Surface: x-697022 y-5949821 Zone-ASP4 10. KB Elevation (Height above GL): 62.5 feet 15. Distance to Nearest well within Pool: 800' 16. Deviated Wells: Kickoff Depth: 3170 feet Maximum Hole An le: 91.5 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 3293 Surface: 2419 1 a in P m: S ecificatio ns To -'Settin h -Bo ttom uanti of nt c.f. or sa s Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta a data 8-1 /2" 7" 26# L-80 TC-11 / BTC-M 9472' Surface Surface 9472' 8245' 436 sx Lite Crete 159 sx Class 'G' 6-1/8" 4-112" 12.6# L-80 IBT- M 2909' 9322' 8102' 12231' 8798' 351 sx Class'G' 1 g. PRESE NT WELL"CONDITION SUMMARY (To be completed. for Redrill and Re-.entry Operations) Total Depth MD (ft): 9450' Total Depth TVD (ft): 8920' Plugs (measured): None Effective Depth MD (ft): 9397' Effective Depth TVD (ft): 8910' Junk (measured): None asing Length ize Cement Volume M D Conductor /Structural 117' 2 44 sx Arcti t 117' 117' Surface 3476' 10-3/4" 1100 sx PF ' 350 sx Class 'G' 3476' 3475' Intermediate 8713' 7-5/8" 870 sx Class'G' 8713' 8430' Pr i n Liner 563' 5-1 /2" 275 sx Class 'G' 8418' - 8981' 8159' - 8669' Liner 1034' 2-3/8" 15 sx Class 'G' 8400' - 34' 8143' - 8917' Perforation Depth MD (ft): 9202' - 9326' Perforation Depth TVD (ft): 8852' - 8893' 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 foregoing is true and correct. Contact Ron Phillips, 564-5913 Printed Name Robert Tirpack Title Engineering Team Leader Prepared By Name/Number: Si nature ~-~~~~ ~ Phone 564-4166 Date `~ /S~ p' Sondra Stewman, 564-4750 Commission Uae Onl Permit To Drill Number: aTD~O,f 1O API Number: 50-029-21963-02-00 Permit A prov I ,p See cover letter for Date: d other re uirement Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained shales: _,,/ Samples Req'd: ^~ es ~No Mud Log Req'd: ^ Yes L1Q No HZS Measures: ®Yes ^ No I Survey Req'd: Yes ^ No Other: 3~~~ ~?S r ~~~-~c~c~-" PP OVED BY THE COMMISSION Date - -~ S ,COMMISSIONER Form 10-401 Revised 12/2005 ~ ~ ~' , 1 1t 1 ~ / ~ ~ / ~ Submit In Duplicate o I`\vf H L V V To: Alaska Oil & Gas Conservation Commission From: Ron Phillips, ODE Date: April 16, 2008 Re: OS-23B Sidetrack Permit to Drill The 05-23B well is scheduled to be drilled by Nabors Rig 7ES which is currently scheduled to move onto the location ~OS/13/08. The plan is to exit the parent 05-23A wellbore from the 10- 3/4" casing at 3170' MD with an 8-1/2" BHA. The 8-1/2" hole will then be drilled to the top of the Sag River formation where a 7" `c~-5~~~i11 be run and. cemented. A 6-1/8" hole will then be drilled building to horizontal in the Ivishak Zone lA. The planned well then runs horizontally for approximately 2042' to a final well TD at 12,231' MD. A solid 4-1/2" production liner will be run and cemented in place. Please note the following Well Summary as detailed on the next few pages: 05-23B Drilling Permit Page 1 ~ ~ Well Name: 05-236 Planned Well Summary Well Horz. Target Ivishak Well 05-23B Type Sidetrack Objective Zone 1A Producer AFE Number PBD4PXXXX API Number: 50-029-21963-02 Surface Northin Eastin Offsets TRS Location 5,949,822 697,022 1,619' FNL / 23' FEL 11 N, 15E, 31 Target Northin Eastin TVD Offsets TRS Location 5,953,619 696,493 8,792' 3,089'FNL / 439'FEL 11 N, 15E, 30 Bottom Northin Eastin TVD Offsets TRS Location 5,954,748 695,507 8,798' 1,936' FNL / 1,391' FEL 11 N, 15E, 30 Planned TD: 12,231' MD / 8,798' TVD S ud Date: Ma 13, 2008 Ri Nabors 7ES Directional - Sperry wp s.o GL: 34' RKB: 62.5' Maximum Hole An le: 91.5° in the lanned horizontal roduction section Close Approach Wells: All wells except the 05-30 pass major risk close approach criteria. The center to center distance is 48' at 3,850'. Both wellbores are still vertical at the close approach area. The tolerable collision risk worksheet was completed and 05-23B passes minor 1/200 risk with 05-30. Re-gyroing these wells would not reduce our risk since they both have accurate tool codes. The KOP was moved up hole to get the 05-23B wellbore as far as possible awa from 05-30 and 05-15. Surve Pro ram: MWD Standard + IFR + MS Nearest Property Line: 21,000' to the Unit boundary to the West Nearest Well within Pool: 5-166 is 800' awa from lanned well Contacts Name Phone # Drilling Engineer. Ron Phillips 564-5913 Geologist Priya Maraj 564-4181 Pad Engineer James Dean 564-4668 Formation Markers 05-23B (Based on Dir Wpb) E-mail Ron.Phillips @bp.com Priva.Maraj @bp.com James.Dean @ bp.com 05-236 Drilling Permit Page 2 Estimated Formation Tops Estimated Pore Press Formation TVDss TVD rkb C«~ 62.5' MD rkb Cd1 62.5' Psi / EMW Base Permefrost 1920 1983 1983 KOP 3107 3170 3170 SV2 3769 3832 3847 SV1 4154 4217 4295 UG4 4713 4776 5037 UG3 4831 4894 5194 '9.0 UG 1 5415 5478 5970 *9.0 WS2 6029 6092 6785 WS1 6236 6299 7060 CM3 6486 6549 7392 CM2 6910 6973 7956 CM1 7584 7647 8831 THRZ 7915 7978 9192 BHRZ/TKUP 8091 8154 9376 TJB/LCU 8091 8154 9376 TSGR 8183 8246 9472 TSHU 8228 8291 9519 TSAD 8280 8343 9574 TCG L 8428 8491 9728 BCG L 8489 8552 9792 23SB 8560 8623 9867 21TS 8630 8693 9949 TZ1 B 8676 8739 10016 3,293 si/ 7.3 TDF 8715 8778 10101 BSAD 8738 8801 10704 " Recent data shows cretaceous pressures are down to 9.Oppg from 1996 pressures of 10.1 ppg. Casing/Tubing Program Hole Size Csg / Tb O.D. WUFt Grade Conn Length Top MD /TVD rkb Bottom MD /TVD rkb 13-1/2" 10-3/4" 45.5# J-55 3,448' 28.5' 3,476'/ 3,474' 8-1/2" 7" 26.0# L-80 BTC-M 4,782' 4,690'/ 4,514' 9,472'/ 8,245' 8-1 /2" 7" 26.0# L-80 TC-II 4,662' 28.5' 4,690'/ 4,514' 6-1/8" 4-1/2" 12.6# L-80 IBT-M 2,909' 9,322'/ 8,102' 12,231'/ 8,798' Tubin 4-1/2" 12.6# 13CR-80 Vam To 9,294' 28.5' 9,322'/ 8,102' Mud Pro ram 8-1/2" Hole Section / o eration: Mill window in the 10-3/4" casin @ 3,170'. T e Densi PV YP MBT API FL H LSND 9.5 15-22 30-40 <10 6-8 9 - 9.5 .Hole Section / o eration: Drill intermediate hole from KOP to HRZ @ 9192'. T e Densit PV YP MBT API FL H LSND 9.5-9.8 8-14 18-24 <15 <6 9 - 10 Hole Section / o eration: Drill intermediate hole from HRZ to TSGR Cc3 9,472'. T e Densit PV YP MBT API FL H LSND 10.1 12-20 18-28 <20 4-6 9 - 10 6-1/8" Hole Section / o eration: Drill roduction hole to TD ~ 12,231'. T e Densit PV YP LSRV API FL H MBT Flo-Pro SF 8.5 6 - 12 22 - 28 >20,000 6 - 8 9.0 - 9.5 <4 Logging Program 05-23B Drilling Permit Page 3 1~ Hole Section: Required Sensors /Service 8-1/2" intermediate: MWD Dir/GR/PWD 6-1/8" production: MWD Dir/GR/Res and Neu/Dens realtime for Mad pass and in lateral. (Real time Res for fault identification and as a orosit indicator. Cement Program ~--~ Casin Strin 7", 26#, L-80, BTC-M x TC-II intermediate Casin , TOC @ 4190' MD Slurry Design Basis: Lead slurry: 4282' of 7" x 8-1/2" open hole with 30% excess. Tail slurry: 1000' of 7" x 8-1 /2" annulus with 30% excess, lus ~80' of 7", 26#, shoe tract. Mud Push II: 50 bbls at 12 ppg Lead Slurry: Slur T e 12.0 lite Crete slur Slurry Volume 125 bbls / 702cf / 436sx lite Crete / 12.5 ppg/ 1.61cf/sk. Tail Slurry: Slurry Type 15.8 ppg Class `G' liner slurry Slurry Volume 33 bbls / 185 cf / 159 sx Class `G'/ 15.8ppg/ 1.17 cf/sk. --"7 Casin Strin 4-1/2", 12.6#, L- 80, IBT-M Production liner, TOC C~ Liner Han er Slurry Design Basis: Tail slurry: 2,759' of 4-1/2" x 6-1/8" open hole with 40% excess, plus ~80' of 4-1/2 , 26#, shoe tract. Plus 150 of 4-1/2 x 7 annulus. Also 200 on top of liner han er between 4" drill i e and 7"cs . Mud Push II: 40 bbls at 10.5 Tail Slurry: Slur T e 15.8 Class `G' liner slur Slurry Volume 73 bbls / 410 cf / 351 sx Class `G'/ 15.8ppg/ 1.17 cf/sk. Surface and Anti-Collision Issues Surface Shut-in Wells: There are no wells requiring surface shut-in in order to move onto the well. Wells 05-30 and 05-26 are the closest wells 60.44' to the north and 59.97' to the south. All wells except the 05-30 pass major risk close approach criteria. The center to center distance is 48' at 3,850'. Both wellbores are still vertical at the close approach area. The tolerable collision risk worksheet was completed and 05-236 passes minor 1/200 risk with 05-30. Re-gyroing these wells will not reduce our risk since they both have accurate tool codes. The KOP was moved up hole to get the 05-23B wellbore as far as possible away from 05-30 and 05-15. The 05-30 well is shut in with tubing leaks awaiting a RWO. Hydrogen Sulfide Drill site 05 is not designated as an H2S site. Standard Operating Procedures for H2S precautions should still be followed at all times. Date of Well Name H2S Level Readin #1 Closest SHL Well H2S Level #2 Closest SHL Well H2S Level #1 Closest BHL Well H2S Level #2 Closest BHL Well H2S Level Max. Recorded H2S on Pad/Facility Other Relevant H2S Data (H2S alarms from rigs, etc.) Faults 05-30 7 m 6/12/1995 05-26A 10 m 4/15/2006 05-16 3 m 10/10/1990 05-156 2 m 10/29/1994. 05-056 27 m 11 /1 /1990 05-23B Drilling Permit Page 4 There are only three planned fault crossings. Fault #1 is at 8475' MD with an estimated throw of 25' up to the South West. Fault #2 is at 9005' MD with an estimated throw of 15' up to the West. Fault #3 is at 10530' MD with an estimated throw of 25' down to the North. A number of faults are located in the near vicinity of the proposed well. The coordinates for these faults will be provided in the directional plan details. There is a medium risk of fault and fracture associated lost circulation. Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams, blind/shear rams, and an annular preventer will be installed and is capable of handling maximum potential surface pressures. The ram configuration will be: Well Interval: 8-1/2" intermediate interval to TSGR Maximum antici ated BHP:. 3130 si at 8246' tvd Maximum surface ressure: 2306 si based u on BHP and a full column of as from TD ~ 0.10 si/ft Calculated kick tolerance: 52.5 bbls with 11.5 EMW .FIT Planned BOPE test ressure: 250 si low / 3,500 si hi h -14 da test c cle Drillin o erations Well Interval: 6-1/8" horizontal roduction interval in Ivishak Zone 1A Maximum antici ated BHP: 3293 si at 8739 tvd Maximum surface pressure: 2419 psi (based upon BHP and a full column of gas from TD C~3 0.10 psi/ft) Calculated kick tolerance: Infinite with 10.0 EMW FIT Planned BOPE test ressure: 250 si low / 3,500 si hi h - 14 da test c cle Drillin o erations Planned com letion fluid: 8.8 clean seawater / 6.8 Diesel BOPE and drilling fluid system schematics are currently on file with the AOGCC. Dis osal Annular No annular injection in this well. In'ection: Cuttings Cuttings generated from drilling operations are to be hauled to the Grind and Inject Handlin station at DS-04. An metal cuttin s should be sent to the North Slo a Borou h. Fluid All drilling and completion fluids and other Class II wastes are to be hauled to DS-04 for Handlin injection. All Class I wastes are to be hauled to Pad 3 for dis osal. 05-23B Drilling Permit Page 5 CJ Dr~g Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE I. Well Control The Ivishak in this fault block is expected to be under-pressured at 7.3 ppg EMW. This pressure is estimated based on offset well pressures. 3500 psi test pressure is in accordance with the RP for Prudhoe production well casing tests. II. Lost Circulation/Breathing The risk of fault and fracture associated lost circulation is considered high. Follow the LCM decision tree if losses occur in the intermediate section. Swap to seawater if losses are encountered in the production hole after consulting with the ODE. III. Kick Tolerance/Integrity Testing A. The Kick Tolerance for the intermediate hole section is 52.5bbls with 10.1 ppg mud, 11.5 ppg FIT, and an 8.3-8.8 ppg pore pressure at the top of the Sag River. An FIT of 12.5 ppg EMW should prove up adequate formation strength for expected ECD's. B. The Kick Tolerance for the production hole section is infinite with 8.5 ppg mud, 8.8 ppg FIT, and an 7.1-7.6 ppg pore pressure. An FIT of 10.Oppg EMW should prove up adequate formation strength for expected ECD's. C. Integrity Testing Test Qoirtt Test Q ~ Test- EMW Ib/ al 10-3/4" KOP 20-ft from the 10-3/4" KOP FIT 12.5 minimum 7" shoe 20-ft from the 7" shoe FIT 10.0 minimum IV. Stuck Pipe A. Pipe sticking tendency is possible. Back reaming at connections and good hole cleaning practices will contribute to favorable hole conditions. B. Monitor cuttings closely and adjust mud weight accordingly to avoid destabilization. C. We do not expect stuck pipe if the hole is kept adequately clean. VI. Hydrogen Sulfide Drill site 05 is not designated as an H2S site. The maximum H2S reading on DS-05 is 27 ppm. Standard Operating Procedures for H2S precautions should still be followed at all times. VII. Faults There are only three planned fault crossings. Fault #1 is at 8475' MD in the Colville with an estimated throw of 25' up to the South West. Fault #2 is at 9005' MD in the Colville with an estimated throw of 15' up to the West. Fault #3 is at 10530' MD in the Ivishak with an estimated throw of 25' down to the North. A number of faults .are located in the near vicinity of the proposed well. The coordinates for these faults will be provided in the directional plan details. There is a high risk of fault. and fracture associated lost circulation. VIII. Anti-Collision Issues All wells except the 05-30 pass major risk close approach criteria. The center to center distance is 48' at 3,850'. Both wellbores are still vertical at the close approach area. The tolerable collision risk worksheet was completed and 05-23B passes minor 1/200 risk with 05-30. Re-gyroing these wells would not reduce our risk since they both have accurate tool codes. The KOP was moved up hole to get the 05-23B wellbore as far as possible away from 05-30 and 05-15. The 05-30 well is shut in awaiting a RWO. Consult the Drill site 05 Pad Data sheet for Additional information. 05-23B Drilling Permit Page 6 05-23B Operations Summary Pre-Riq Work: 1. Bleed casing and annulus pressures to zero. Cycle all LDS, repair or replace as needed. 2. Open OTIS FMX TRSSSV. 3. Set a cement retainer at 8390 and squeeze -24 bbls of cement into perfs and fill tubing from 9395' up to 8390'. 4. Un-sting and lay 100ft of cement (-1 bbl) on top of retainer. 5. Drift for 3-1/2" Jet cut. 6. Jet cut tubing middle of first joint above top of cement ~ 8280'. 7. Circulate well with 9.8 ppg brine and freeze protect well with diesel thru the cut. 8. Set a BPV and test to 1,000 psi from tubing annulus (or maximum allowable up to 1,000 psi). 9. Secure the well. 10. Remove well house. Level the pad as necessary. Riq Operations: 1. MI/RU Nabors rig 7ES. Pull BPV. 2. Set and test TWC to 1,000 psi. 3. Nipple down tree. Nipple up and test BOPE to 3,500 psi. Pull TWC. 4. Pull 3'/z" tubing from pre-rig jet cut C~ 8280'MD. 5. Run USIT Log in 7 5/8" casing up to surface. 6. RIH with 7-5/8" EZSV CIBP and set at below Cretaceous corrosion based on USIT log -6092'MD (top of WS2). 7. Lay a cement plug on top of CIBP up to top of corrosion based on USIT log ~4216'MD (top of SV1). 8. RIH with jet cutter and cut 7 5/8" casing at 3,400'. RD wire line. 9. Recover 3,400' casing fish. ~~j 10. RIH with HES EZSV bridge plug on E-line and set at -3,190 MD, as required to avoid cutting a casing collar while milling ,,l~J~'" the window. POOH. ~j 11. P/U and RIH with 10 3/a" Baker bottom-trip anchor whip stock assembly. Orient whip stock, per directional plan, and set on EZSV CIBP. Shear off of whip stock. 12. Displace the well to 9.5 ppg LSND based milling fluid. Completely displace the well prior to beginning milling operations. Warning- Watch for the Cretaceous (UG3 and UG1) to be over pressured to 10.1 ppg EMW. Back in 1996 other wells in the area were overpressured, but recent data shows pressures back to normal (-9.Oppq). 13. Mill window in 10 3/4" casing rom - pus approxima e y ircu a e we ore c ean. 14. Pull up into 10 3/a" casing and conduct a FIT to 12.5 ppg EMW. POOH. 15. M/U 8-'/z" Dir/GR/PWD assembly. RIH, kick off and drill the 8-'/2" intermediate section. Weight up to 10.1 ppg 200 ft prior to drilling into the HRZ. 16. Drill to the top of the Sag River, per directional proposal. Circulate well clean, short trip to window. POOH. 17. ~ ~ Run and cement a 7", 26.0#, L-80 intermediate~iUiag-lirti~ ~~si r`~ `~~ 18. 19. Test the 7" casing to 3,500psi for 30 minutes. Record the test. ,.,,_ M/U 6 1/8" Dir/GR/Res assembly. RIH to the landing collar. ~,.~`' ~ 1 ~ (~~~, 20. ~ Drill out the Tyr~i'{oat equipment and cement to the shoe. 3 21. Displace the well to 8.4 ppg Flo-Pro drilling fluid. 22. Drill out the 7" shoe plus drill -20' new formation; pull up into the shoe and conduct an FIT to 10.0 ppg EMW. Drill ahead to horizontal landing point. 23. POOH for bit / BHA change. Need to add Den/Neu to MWD, mad pass up from landing to 7" shoe. Drill horizontal section to planned TD, short trip as necessary. 24. Circulate, short trip, spot liner running pill, POOH. 25. Run and cement a 4'/i", 12.6#, L-80, IBT-M production liner. POOH L/D drill pipe. 26. RIH with 2 7/8" pert guns and perforate ±1000'. 27. R/U and run 4'h", 12.6#, 13 Cr-80, VamTop completion tubing. Land the tubing RILDS. 28. Reverse circulate seawater and corrosion inhibitor. Drop the ball and rod, set the packer. 29. Individually test the tubing and annulus to 3,500psi for 30 minutes. Record each test. 30. Shear the DCK valve and confirm by circulating both ways. 31. Set a TWC and test to 1000 psi from above and below. 32. Test tubing hanger packoff to 5000 psi. 33. Nipple down the BOPE. Nipple up the tree and test to 5,000psi. 34. Pull TWC. Reverse in sufficient diesel to freeze protect to 2,200' TVD. U-tube. 35. Install BPV and test to 1000psi. Secure well. RDMO. Post-Riq Operations: 1. MI / RU slick line. 2. Pull the ball and rod / RHC plug from landing nipple below the production packer. 3. Install well house and instrumentation. 05-23B Drilling Permit Page 7 TREE = 3-118" FMC WELLHEAD = ACTUATOR = AXELSON KB. EtEV = 72' BF. ELEV = NA KOP = 5375' Max Angle = 80 ~ 9421' Datum MD = 9244' DatumTVD= 8800'SS i 05-23 10-3/4" CsG, 45.5#, J-55, ID = 9.953" ~ 3476` Minimum ID =1.92" ~ 8419' TOP OF 2-3/8" 4.7# LN R '3-1/2" TBG-PC, 9.3#, L-80, .0087 bpf, ID = 2.992" ' $374' 2.70" BKR DEPLOYMENT SLV, ID = 2.25" TOP OF BKR TIEBACK SLV, ID = 5.750" 8400` $418' 7-5/8" X 5-1 /Z" BAKER PKR, ID = 4.875" $425 7-518" X 5-1/2" BKR LNR HGR, ID = 4.93T' 8428` 3-112" TTA-F~, 9.3#, L-80, .0087 bpf, ID = 2.992" 8473' 7-518" CSG, 29.7#, L-80, ID = 6.875" (-{ 8713' PERFORATION SUMMARY REF LOG: SWS MEM CNUGR of 10116/01 ANGLE AT TOP PERF: 53 ~ 9202' Note: Refer to Reduction DB for historical perf data SQE SPF INTERVAL Opn/Sqz DATE 1-9115' 6 9202 -9227 O 02/16/03 1-9115' 6 9240 -9326 O 10/1fi101 5-112" LNR, 17#, L-80, ID = 4.892" (-~ 9402' 2183" -j3-1/2"OTIS FMXTRSSSV, ID=2.813" GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LTCH PORT DATE 1 3201 3201 1 MMG2 DMY RK 0 08/01/99 2 4788 4787 1 MMG2 DMY RK 0 04/21/99 3 5963 5939 22 MMG2 DMY RK 0 Q4/21/99 4 6580 6497 26 MMG2 DMY RK 0 04/21/99 5 7136 6999 26 MMG2 DMY RK 0 04/21/99 6 7695 7503 25 MMG2 DRAY RK 0 04/21/99 7 8012 7790 25 MMG2 DMY RK 0 04/21/99 8 8198 7959 24 MMG2 DMY RKP 0 04/21/99 C CHEMICAL MANDRELS 9 8286 8039 24 MMG-7 DMY RK 0 09/30/01 8374` BKR GBH-22 LOC. SEAL ASSY, ID = 3.00" 8375' 7-5/8" X 3-1/2" BKR FB-1 PKR, ID = 4.00" 8403` BP INTERGRA L TURBO, ID = 2.00" 8419` TOP OF 2-3/8" LNR 4 7# L-80 ID = 1 92" , . , , . " " ' 3-112 OTIS XN NIP, MILLED TO 2.80 ID 8462 1 " $474' 3 - /2 WLEG (BEHIND LNR) 8468` EL MD TT LOGGED 01 /28/91 MILLOUT WINDOW ~ 8981' - 8985' PBTn -~ 9395' ~ \ 2-3/8" LNR, 4.7#, L-80-STL, .Q039 bpf, ID = 1.92" 9434' DATE REV BY COMMENTS DATE REV BY COMMENTS 01/07/91 ORIGINAL COMPLETION 02/16!03 EH/tlh ADPERF 05!13/01 RNftlh CORRECTIONS 02/18/03 DAC/tlh MAX ANGLE CORRECTION 10/09/01 JDM/KK CMT P & A 06/05/03 CMO/TLP MAX ANGLE 10/17/01 CWS CASING LEAK ~ 5340' 08/18/03 CMO/TLP DATUM MD/ PERFANGLE 10/17/01 CHIKAK CTD SIDETRACK (05-23A) 05/30/06 UTM WELLHEAD CORRECTION 11/28/01 8Y/KAK CORRECTIONS PRUDHOE BAY UNIT WELL: 05-23A PERMfT No: FZ011880 API No: 50.029-21963-01 SEC 31, T11N, R15E, 1619' SNL & 23' WEL BP Exploration (Alaska) TREE _ , 3-1/8" FMC WELLHEAD= FMC ACTUATOR = AXELSON KB. ELEV = 72' BF. ELEV = NA KOP = 5375' Max Angle = 80 ~ 9421' Datum MD = 9244' Datum TV D = 8800' SS 10-3/4" EZSV CIBP 3190' 7 5/8" CSG cut 3400' 10-3/4" CSG, 3476' 45.5#, J-55 TOC above Cret. 4216' 7 5/8" EZSV CIBP 6092' 3 12" TBG cut 8280' TOC Pre-rig PIA 8290' 3-1/2" CMT retaine 8390' 7-5/8"x5-1/2" PK 8425' 7-5/8" CSG, 8713' 29.7#, L-80 M~but w indow 8981' 2-3/8" LNR, 4.7#, 9434' L-80 5-1/2" LNR, 17#, 9402' L-80 3170' Top of 10 3/4" Whipstock w indow 4190' 7" CSG TOC 7" BTC-M X-over to T' TCII 9,214 4 12" 'X' Landing Nipple, ID = 3.813" 9251' 7" X 4-12" Baker S-3 PKR 9,281 4 1!2" 'X' Landing Nipple, ID = 3.813" 9,312 4 1/2"'XN Landing Nipple, ID=3.725" 9322' 412", 12.6#, 13CR VamTop 9 322 7" X 4-1/2" Baker HMC liner hanger, ZXP Inr top packer w/ TBS 9472' 7" CSG, 26#,L-80 BTGM 12231' 4 12" LNR, 12.8#, L-80, IBT-M DATE REV BY COMMENTS DATE REV BY COMMENTS 01/07/91 ORIGINAL COMPLETION 10/17!01 CH/KAK CTD SIDETRACK (05-23A) 02/16/03 EHltlh ADPERF 05/30!06 Dl'Ail WELLHEA D CORRECTION 04/08/08 RLP 05-236 proposed Wp-Ofi PRUaiOE BAY UNff WELL: 05-23A PERMfT No: 2011880 API No: 50-029-21963-02 SEC 31, T11 N, R15E, 1619' FNL & 23' FEL ~ Expbration (Alaska) ~ 05-23B propose 2,200 412" 'X' Landing Nippk:, ID = 3.813" COMPANY DETAILS REFERENCE INFORMATION SURVEY PROGRAM BP Amoco 'o-ordinate lN; E) Reference: Well C'entm: OS-23, Truc North Depth Fm Depth To Survey/Plan Tool Plan: Plan U>-23B R'p 6.0 llS -23, Plan OS-23B) Vcnical (TVD) Reference: OS-23B Plan 62.50 Calculation Method: Minimum Curvature Section (VS) Rclcrcnce: Slut - IO.OON,000E) 3170.00 1223128 Planned: Plan OS-23B Wp 6.0 V3 MWDi IFR i MS Created ey: Sperry Drilling Datc: 4; IOi2008 Error Svstem: 1SCWSA Measured Depth Reference: OS-23B Plan 62.50 Scan Method: Trav Cylinder North Calculation Method: Minimum Curvamrc Error Surface: Elliptical i Casing WELL DETAILS Warning Method: Rules Based OS-2 3B Fault - - - Name t N/-S i E/-W Northing Easnng Latitude Longitude Slot H A ^ ~' p ^ ~ r'1 ~ O A ^ OS-23 2G?G.G7 -338.33 594982L45 G9702L86 70° 1601.529N 14%°?4'24.271 W NiA M ` G 7 V r7 ~ V End Dir `. 11677.49' ,-879 .S I' TV D - '1- - Total Depth: 13 231 28' MD, 8797.5' TVD ~ ~ '-T -- ~ - - Bperry Grilling Services ,~-~-~', 7 FORMA TION TOP DETAILS 4 1/2 US 23B ~{-~ ~ ~ Nu. TVDPath MDPath Fonnalion an - - / ~_ OS-_38 Faul[ 6 PIa nU -23B Wp6.U~_ \`" ~ ~~ ~ _ ~-- -' I 3831.50 3846.92 SV2 ~ --- --X ~ _ ~ ' ' 4295.19 SV I O S-2 T6 Rev I - M TZ Rcv 1 PM ~ T_ - Start Dir 12°/IOU' : 1133 ' .3T MD, 88U1.74 TVD ' 3 4776.50 - 5(132116 UG4 ~ nd Dir : 11283.(11 MD, TVD 03.12 4 4893.50 5193.82 UG3 ~. U5 23B F It 8 ! ~ 5 5477.50 5969.63 UGl OS-23B ault 7 ~ 6 609LSO 6785.29 WSZ . ~ ) ~ 7 6398.50 7060.28 WSl ' US-23 TS - - _ Start Dir I2°/IUO' : 107 .70' MD. 88U2.5'TVD ~ 8 654850 7392.39 CM3 A246 _ _ _ - ' 9 6973.50 7955.65 CM2 US-23B Fault 5 10 7646.50 8830.91 CMl - - - OS-23 T4 r ev 2 - -~~, ~ -Dic : 1040612' M 9' TVD 8791 I I 7977.50 9192.38 THRZ US-23T3 Rrv3 . _ -- , . 12 8153.50 9376.22 BHRZ'TKUP ' -. ~ . _ ~ ~ Start Dir 12°1100' :10378. 9' MD, 879LSTVD ~ 13 8153.50 9376.22 TJB/LC'U ~ ~ US-23B Fa ult 4 ^~ ~~ ~ ~ 14 8245.50 9472.32 TSGR r - - ~ ~ ~ ~' I ~ -- En Dir : IOl89.19' MD 879 .5' TVD IS 829050 9519 32 TSHU ' - - - ~ F ~ 0 ~ 23BGco-Poly ~ - , - Ib 8342.50 957363 TSAD _ '. _ - ~ I ~ ! -___ _. 17 8490.50 97282? TCGL ~. ~~ ~. OS-23 B T2 ~ ~ - _ Start Dir 21 °7100' : 9 37.81' MD, 8595.42'TVD I S 8551.50 9791.94 BCGL „ = ~~ 19 8623511 986659 23SB 3397 7 - ~ 20 8692.5(1 9948.71 21TS 95% c onf. - _ _ 0 _ ~ -23B Fau t2 21 8738.50 !0015.98 TZIB US-23B alt 1 ~ ~ ` 22 877750 1010117 TDF U _ I S-23BTI 8l ) ndDir :9176.7_ MD, 79 TVD _.78 23 88110.50 10703.53 BSAD __` - 1- ~ --- US- 3B Fault 3 SEC"CION DETAILS I --- 0 _- Sec MD Inc Azi TVD i N~-S ~ Ei-W DLeg TFace VStx Target $htrt Dir 4°i 1 U' : 8563.86' MD, 7430.35' VD 1 3170.00 1.30 183.98 3169.55 -35,59 8.1( 0.00 O.W -36.48 2 3190.00 315 ?23.69 3189.53 -36.23 7.75 12.00 60.00 -36.9% - __ 3 3290.00 6.29 257.13 3289.19 -39.51 0.44 4.00 60.00 -3 8.17 4 4344.61 4L17 352.90 4254.25 307.92 -103.58 4.W 102.75 320.43 5 8563.86 4L17 352.90 7430.34 3064.09 -447.12 0.00 0.00 3071.51 ~, ~ 6 9176.72 16.80 358.90 7962.50 3357.30 -474.19 4.00 175.82 33GL20 OS-23BT1 ~ ~ ~ '~. - - - ~ - - -: ~ ~ ~ ~ ~ ~ 1 r -~- -- ~ ~ ~ ~ - - ~ - - - 7 9177.00 1(.79 358.90 7962.78 3357.38 -474.19 4A0 -180.00 3361.28 I '. R 9557.97 16.79 358.90 832750 3467.40 476.31 0 00 0.00 3467.82 US-23B P '~ I 9 9577.94 16.79 358.9(1 8346.62 3473J6 476.42 000 0.00 1473.40 I , , 10 9837.81 IG.79 358.90 8595.42 354811 477.86 0.00 0.00 3546.08 - - - - -' _ ~ II IOIR9.19 90.00 13.76 879150 3806.29 -430.30 21.00 15.49 3781.88 ~ 6 ) ~. ~ - ~ i I ~. 12 10193.32 90.00 13.76 8791.50 3810.30 -429.32 0.00 O.W 37%5.47 05-23 T3 Rcv 3 - i t 13 10378.29 90.W 13.76 8791.50 3989.97 -385.33 0.00 O.W 3946.71 ~ _ _ _ - _ _ _ 1-0 10406.22 8%.34 10.84 8791.90 4017.25 -379.38 12.00 -119.64 397139 _ , 15 10773.70 88.34 IO.R4 8802.50 4377.04 -310.47 0.00 0.00 4299.41 OS-23 T5 OS-23 (OS-23) 16 112%3.01 91.53 309.68 8803.12 4834.83 -474.73 12.00 -87.34 4784.50 - ~ ~ - 17 11334.37 91.53 309.68 880L74 486260 -514.24 0.00 0.00 482(.(.9 - " IS 11415.77 90.21 300.W 8800.50 4914.05 -580.97 12.00 -9Z(G 48%9.36 PM T2 Rcv I ~ ~ ~ ~ ~ -' - - - - _--~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ - ~ ~ - ~ ~ - 19 11(,77.49 90.21 268.59 8799.51 4977.%7 -831.41 I2.OU -89.9.5 5018.15 20 12231.28 9021 268.59 8797.90 4964.29 - 1385.04 OAO 0.00 5153.88 OS-23 T6 Rcv I i _ 05-23 (05-?3A) ~ I~ TARGET DETAILS - g p I_ _. J__. Name TVD +N/-S +E~-W Northing Fasting Shape 8 W End Dir : 43 4.61' MD. 425414' TVD OS-23B Fault 1 736250 3111.48 -1210.91 5952900.00 695730.00 Polygon ~ ~ - -_1-~ - - OS-236 Fault 2 7802.50 3403.59 -523.00 59532111.(10 696410AU Polygon . US-23B Tl 7962.50 3357.3(1 -474.19 5953165.00 69646000 Circle (Radius: 50) ~ . 00 CASING D ETAILS US-236 Fault 3 7997.50 3099.1 (I -355.9(1 `;952910.00 696585.00 Polygon US-33BFault4 8102.50 3632.87 -491.98 595344UAU 696435.00 Polygon - - ~ - ~ _-,_ No. TVD MD Na mc Sizc US-23B T2 8327.5(1 3467.40 -476.31 5953275.011 696455.(10 Cuclc (Radnts': IOO) - ~ ll ~ ', ~ ~ OS-23 T4rcv 2 75 8788 50 3991 -405 56 5953801.00 696511.99 Point I 3169.55 3170.00 IU 3/4" 10.750 OS-23 T3 Rcv 3 . . 879L50 3810.311 . -429.32 5953619.00 696492.99 Point - $. - - 2 8245.50 9472.32 7" 7.000 US-23BGco-Poly 8797.50 3467.40 476.31 5953275.011 696455.00 Polygon 0 - 1 879758 12208.54 4 l /2" 4.500 US ?3 T6 Rev I 879750 4964.29 -1385.04 5954747.51 695507.45 Point PM T2 8800.50 4843.09 558 34 5954648.00 696336.99 Point ~ ~ ~ 400 " StartDir 4°/ 00' : 3190' MD, 3189.53'T D ~ ~ ~ ~ 1 PM T2 Rev I 8800.50 4914.05 -580.97 5954718.34 696312.52 Point - 10 3/4 - --- _ ' 9 0 - ~ - OS-23 TS 8803.50 4377.04 -310.47 5954188.62 696596.96 Point - -- - - ' ' ' -~~ ~ ~' - - OS-23B Fault 5 8802.50 432!.73 -1584.39 5954100A0 695324.99 Polygon 400 -- S[aR Dir 12°/1 U U .:3L70 MD, 3L69.55 T - OS-23B Faul[8 8827.50 4588.57 -107711 5954380.00 695824.99 PulygOn T rr T T T ~ OS-33BFault9 8827.50 538420 -1471.54 5955165.00 695409.99 Polygon ~ T US-23B Fault6 8842.50 4885.10 206.07 5954710.110 697099.99 Polygon -849 (1 849 1698 2548 3397 US-23B Faul[7 8842.50 4586.79 -627.07 5954390.00 696274.99 Polygon West(-)/East(+) [ft] COMPANY DETAILS Its BP Am~xo Ic ulation Method: Minimum Curvamrc Ertor Svstem: ISCWSA Scan Method: Trav Cylinder North Ertur Sud'acc: Elliptical i Casing CASING DETAILS No. TVD MD Name Sizc 1 3169.55 3170.00 103/4" IU.750 2 8245.50 9472.32 7" 7A00 3 8797.58 12208.54 4IR" 4.500 HALLIBURTON FORMATION TOP DETAILS No. TVDPath MDPath Formation 1 3831.50 3846.92 SVZ 2 4216.50 4295.19 SV1 3 4775.50 5037.06 UG4 4 4893.50 5193.82 UG3 5 5477.50 5969.63 UG I 6 609L50 6785.29 WS2 7 6298.50 7060?8 WSI 8 6548.50 7392.39 CM3 9 6972.50 7955.65 CM2 2 10 7646.50 8830.91 CM I ll 7977.90 9192.38 THR7_ 12 8153.90 9376.32 BHRZ;TKUP 13 8153.50 9376.22 TJB/LCD 14 8245.50 9472.32 TSGR 1j 8290.50 9119.32 TSHU 16 8342.50 9>73.63 TSAD 17 8490.50 9728.22 TCGL IR 8551.50 9791.94 BCGL 0 19 8622.50 9866.59 23SB 0 4 20 8692.50 9948.71 21 TS 21 8738.50 10015.98 TZ 1 B 22 8777.50 10101.27 TDF a 0 23 8800.50 10703.53 BSAD . ._ h .. _. l~r fir' REFEREN('E INFORMATION SURVEY PROGRAM Co-ordinate WtE) Reference: Well Cemre: OS-23, True Nonh epth Fm Depth To Survey/Plan Toul Plan: Plan 09-23B Wp 6.0 (OS-23/Plan 09-23B) Venc~al (TVD) Reference: OS-23B Plan 62.90 Section (VS)Rctcrcner Slot- (QOON.O.OOE) 17000 1223118 Planned: Plxn 05-23B Wp 6.0 V3 MWDiIFRi MS Crealctil6 S t Drilling Dalc: 4/10/2008 Measured Depth Reference: US-23B Plan 62.10 y' p ~ Calculation Method: Minimum (-urvature WELL DETAILS Name i N.-S ~ E~-W Northing Fasting LatituJe Longitude Slot 05-?3 2626.67 -338.33 5949821.45 69702 L86 70°IN01.529N 148'24'24.271W N/A i i } I _ i, ~ 4 I TARGET DETAILS Name TVD +N/-S +E/-W Northing Fasting Shape 05-236 Fault( 7362.50 3111.48 -1210.91 9952900.00 695730.00 Polygon OS-236 Faalt2 7802.50 3403.59 -523.00 5993210.00 696410.00 Polygon 05-23BT1 7962.50 3357.30 -474.19 5953165 AO 696460.00 Circle (Radius: 90) 05-238Fault3 7997.50 3099.10 -355.911 59.52910,110 696585.00 Polygon US-23B Fault4 8102.50 3632.87 -491.98 5953440.00 696439,00 Polygon 09-23B T2 8327.50 3467.40 -476.31 9993279.00 696495.00 Circle (Radius: 100) US-23 T4 rev 2 8788.90 3991.79 -409.96 599380L00 69691 L99 Point 09-23 T3 Rcv 3 8791.90 3810.30 -4?9.32 9993619.00 696492.99 Point US-23B Gco-Poly 8797.90 3467.40 -476.31 5993279.00 696455.00 Polygon 05-23 T6 Rcv I 8797.90 4964.29 -I38S.04 9994747.51 699907.49 Point PM T2 8800.90 4843.09 -59834 9994648.00 696336.99 Point PM T2 Rev I 8800.90 4914.05 -980.97 9994718.34 696312.92 Point OS-23 T9 8802.50 4377.04 -310.47 5994188.62 696996.96 Point OS-23BFauItS 8802.50 4321.73 -084.39 5994100.(10 699324.99 Polygon 09-23BFauIt8 882750 4988.97 -1077.21 5994380.00 695824.99 Polygon OS-23BFault9 8827.90 938420 -147L54 9995165A0 699409.99 Polygon 09-23B Faul[6 8842.90 4885.10 206.07 999471400 697099.99 Polygon 09-238 Fault? 8842.90 4986.79 -627.07 9994390.00 696274.99 Polygon Sec MD [nc Azi TVD +Ni-S +Ei-W' DI_eg TFace VSee Target 1 3170.00 130 183.98 3169.55 -35.59 8.16 0.00 O.IAI -36.48 2 3190.110 3.25 223.69 3189.53 -36 23 7.75 12.00 60.00 -36.98 3 3?90.011 619 2>7,13 3289.19 -39.11 0.44 4A0 60A0 -38.17 4 4344.61 41.17 352.90 4254.25 307.92 -IU3.58 4.00 102.75 324.43 5 8563.86 4L17 352.90 7430.34 3064.09 -447.12 0.00 0.00 3071.51 6 9176.72 16.80 398.90 7962.50 3357.30 -474.19 4.00 175.82 336110 OS-23B TI 7 9177.00 16.79 353.90 7962.78 3357.38 -474.19 4A0 -180.00 3361.28 8 9557.97 16.79 358.90 8327.50 3467.40 -476.31 0.00 OAO 3467.82 OS-23B T2 9 9577.94 16.79 358.90 8346.62 3473.16 -476.42 OAO OAO 3473.4(1 lU 9837.81 16.79 358.90 8595.42 354831 -477.86 0.00 (1.00 3546.08 ll 111189.19 90.00 13.76 879150 380619 -43 0.30 2L00 15.49 3781.88 l2 10193.32 90.00 13.76 8791.50 3810.30 -429.32 0.00 0.00 3785.47 OS-23 T3 Rcv 3 13 10378?9 90.00 13.76 879L90 3989.97 -385.33 0.00 0.00 3946.71 14 10406 22 88.34 10 84 879 L90 4017 25 -379.38 I ~ 00 1 19.64 3971 39 15 10772 70 88.44 10 84 8802 50 4177 04 310.47 0 00 0.00 4299.41 05-23 TS l6 11283 OI 91.53 309 G8 8803 12 4834 84 -474.73 12.00 87.34 4784.50 17 11334 37 91.53 309 68 880 1.74 4867 60 514.24 0 00 0.00 4826 69 I8 11415.77 90.21 30400 8800511 4914.(0 -580.97 12.00 -97.66 4889.36 PM T2 Rcv I 19 II677A9 90.21 268.59 8799.51 4977.87 -831.41 12.00 -89.95 5018.15 20 1223118 90.21 268.59 879750 4)6419 -1385,04 0.00 I1.OU 5153.88 OS-23 T6 Rcv I 2000 4000 6000 Vertical Section a[ 344.41° [2000tUinJ • Sperry-Sun BP Planning Report Company:' BP Amoco bate: 4/10/2008 Time: 11.`.17:42 Page: 1 Field: Prudhoe Bay Go-ordinate(NE) Reference:' Well: 05-23, True North Site: PB DS 05 Vertical (TVl)) Reference: 05-23B PIarr62:5 .Well: 05-23 Section (VS) Reference: Well (O.OON,O:OOE,344.41Azi) Wcllpath: Plan 05-236 Survey Calculation Method: Minimum Curvature Dbc Orate Plan: Plan 05-236 Wp 6.0 Date Composed: 10/9/2007 Version: 30 Principal: No Tied-to: From: Definitive Path Field: Prudhoe Bay North Slope UNITED STATES Map System: US State Plane Coordinate System 1927 Map Zone: Alaska, Zone 4 Geo Datum: NAD27 (Clarke 1866) Coordinate System: Well Centre Sys Datum: Mean Sea Level Geomagnetic Model: bggm2007 Site: PB DS 05 TR-11-15 UNITED STATES :North Slope Site Position: Northing: 5947204.70 ft Latitude: 70 15 35.696 N From: Map Easting: 697428.91 ft Longitude: 148 24 14.424 W Position Uncertainty: 0.00 ft North Reference: True Ground Level: 0.00 ft Grid Convergence: 1.50 deg Well: 05-23 Slot Name: 05-23 Well Position: +N/-S 2626.67 ft Northing: 5949821.45 ft Latitude: 70 16 1.529 N +E/-W -338.33 ft Easting : 697021.86 ft Longitude: 148 24 24.271 W Position Uncertainty: 0.00 ft Casing Points MD TVD Diameter Hole Size Name ft ft in in 3170.00 3169.55 10.750 13.500 10 3/4" 9472.32 8245.50 7.000 8.500 7" 12208.54 8797.58 4.500 6.125 4112" Formations MD TVD Formations Lithology Dip Angle Dip Direction ft ft deg deg 3846.92 3831.50 SV2 0.00 0.00 4295.19 4216.50 SV1 0.00 0.00 5037.06 4775.50 UG4 0.00 0.00 5193.82 4893.50 UG3 0.00 0.00 5969.63 5477.50 UG1 0.00 0.00 6785.29 6091.50 WS2 0.00 0.00 7060.28 6298.50 WS1 0.00 0.00 7392.39 6548.50 CM3 0.00 0.00 7955.65 6972.50 CM2 0.00 0.00 8830.91 7646.50 CM1 0.00 0.00 9192,38 7977.50 THRZ 0.00 0.00 9376.22 8153.50 BHRZ/TKUP 0.00 0.00 9376.22 8153.50 TJB/LCU 0.00 0.00 9472.32 8245.50 TSGR 0.00 0.00 9519.32 8290.50 TSHU 0.00 0.00 9573.63 8342.50 TSAD 0.00 0.00 9728.22 8490.50 TCGL 0.00 0.00 9791.94 8551.50 BCGL 0.00 0.00 9866.59 8622.50 23S6 0.00 0.00 9948.71 8692.50 21 TS 0.00 0.00 10015.98 8738.50 TZ1 B 0.00 0.00 10101.27 8777.50 TDF 0.00 0.00 10703.53 8800.50 BSAD 0.00 0.00 Targets Map Map <-- Latitude -> <-- Longitude: ---> Name Description TVD +N/-S +E/-W Northing Fasting Deg Min Sec Deg: Min Sec Dip. Dir.. .. ft ft ft ft ft 05-236 Fault 1 7362.50 3111.48 -1210.91 5952900.00 695730.00 70 16 32.130 N 148 24 59.531 W -Polygon 1 7362.50 3111.48 -1210.91 5952900.00 695730.00 70 16 32.130 N 148 24 59.531 W S err -Sun P Y BP Planning Report Company: BP Amoco Date: 4/10!2008 Time: 11:17:42 Page:: 2 Field: Prudhoe Bay Co-ordinate(NEyReference: Well: 05-23 , True North Site:. PB DS 05 Vertical (TVl)) Reference: 05-23B Pian 62.5 Well: 05-23 Section (VS) Reference: Well (O. OON,O.OOE,344.41Azi) Wellpath: Plan 05-23B Survey Calculation Method: M inimum Curvature Db Oracle Targets Map Map <w. Latitude --> <-- Longitude ---> Name Description TVD +N/-5 +E/-W Northing Easting 1)eg Min "Sec Deg Mi n Sec Dip. Dir. ft fit ft ft ft -Polygon 2 7362.50 2940.97 -430.07 5952750.00 696515.00 70 16 30.454 N 148 24 36.794 W -Polygon 3 7362.50 2701.98 674.12 5952540.00 697625.00 70 16 28.103 N 148 24 4.643 W 05-236 Fault 2 7802.50 3403.59 -523.00 5953210.00 696410.00 70 16 35.003 N 148 24 39.501 W -Polygon 1 7802.50 3403.59 -523.00 5953210.00 696410.00 70 16 35.003 N 148 24 39.501 W -Polygon 2 7802.50 3282.19 -471.15 5953090.00 696465.00 70 16 33.809 N 148 24 37.991 W -Polygon 3 7802.50 2380.66 -44.58 5952200.00 696915.00 70 16 24.943 N 148 24 25.569 W 05-23B T1 7962.50 3357.30 -474.19 5953165.00 696460.00 70 16 34,548 N 148 24 38.079 W -Circle (Radius: 50) 05-23B Fault 3 7997.50 3099.10 -355.90 5952910.00 696585.00 70 16 32.009 N 148 24 34.634 W -Polygon 1 7997.50 3099.10 -355.90 5952910.00 696585.00 70 16 32.009 N 148 24 34.634 W -Polygon 2 7997.50 3292.97 -500.88 5953100.00 696435.00 70 16 33.915 N 148 24 38.856 W -Polygon 3 7997.50 3099.10 -355.90 5952910.00 696585.00 70 16 32.009 N 148 24 34.634 W 05-236 Fault 4 8102.50 3632.87 -491.98 5953440.00 696435.00 70 16 37.258 N 148 24 38.598 W -Polygon 1 8102.50 3632.87 -491.98 5953440.00 696435.00 70 16 37.258 N 148 24 38.598 W -Polygon 2 8102.50 3522.51 -479.87 5953330.00 696450.00 70 16 36.173 N 148 24 38.245 W -Polygon 3 8102.50 3632.87 -491.98 5953440.00 696435.00 70 16 37.258 N 148 24 38.598 W 05-236 T2 8327.50 3467.40 -476.31 5953275.00 696455.00 70 16 35.631 N 148 24 38.141 W -Circle (Radius: 100) 05-23 T4 rev 2 8788.50 3991.75 -405.56 5953801.00 696511.99 70 16 40.788 N 148 24 36.082 W 05-23 T3 Rev 3 8791.50 3810.30 -429.32 5953619.00 696492.99 70 16 39.003 N 148 24 36.773 W 05-23B Geo-Poly 8797.50 3467.40 -476.31 5953275.00 696455.00 70 16 35.631 N 148 24 38.141 W -Polygon 1 8797.50 3589.35 -358.07 5953400.00 696570.00 70 16 36.830 N 148 24 34.698 W -Polygon 2 8797.50 3822.89 -107.86 5953640.00 696814.00 70 16 39.127 N 148 24 27.412 W -Polygon 3 8797.50 4645.15 9.71 5954465.00 696910.00 70 16 47.214 N 148 24 23.988 W -Polygon 4 8797.50 5172.56 -456.67 5954980.00 696430.00 70 16 52.401 N 148 24 37.572 W -Polygon 5 8797.50 5047.76 -1230.25 5954835.00 695660.00 70 16 51.173 N 148 25 0.103 W -Polygon 6 8797.50 5074.82 -1499.65 5954855.00 695390.00 70 16 51.439 N 148 25 7.950 W -Polygon 7 8797.50 4930.25 -1518.44 5954710.00 695375.00 70 16 50.017 N 148 25 8.496 W -Polygon 8 8797.50 4686.84 -1009.61 5954480.00 695890.00 70 16 47.624 N 148 24 53.675 W -Polygon 9 8797.50 4705.44 -573.95 5954510.00 696325.00 70 16 47.807 N 148 24 40.987 W -Polygon 10 8797.50 4606.55 -426.47 5954415.00 696475.00 70 16 46.834 N 148 24 36.692 W -Polygon 11 8797.50 3666.00 -611.16 5953470.00 696315.00 70 16 37.584 N 148 24 42.069 W 05-23 T6 Rev 1 8797.50 4964.29 -1385.04 5954747.51 695507.45 70 16 50.352 N 148 25 4.611 W PM T2 8800.50 4843.09 -558.34 5954648.00 696336.99 70 16 49.161 N 148 24 40.533 W PM T2 Rev 1 8800.50 4914.05 -580.97 5954718.34 696312.52 70 16 49.859 N 148 24 41.192 W 05-23 T5 8802.50 4377.04 -310.47 5954188.62 696596.96 70 16 44.577 N 148 24 33.313 W 05-236 Fault 5 8802.50 4321.73 -1584.39 5954100.00 695324.99 70 16 44.032 N 148 25 10.413 W -Polygon 1 8802.50 4321.73 -1584.39 5954100.00 695324.99 70 16 44.032 N 148 25 10.413 W -Polygon 2 8802.50 3993.84 622.91 5953830.00 697539.99 70 16 40.808 N 148 24 6.131 W -Polygon 3 8802.50 4321.73 -1584.39 5954100.00 695324.99 70 16 44.032 N 148 25 10.413 W 05-236 Fault 8 8827.50 4588.57 -1077.21 5954380.00 695824.99 70 16 46.657 N 148 24 55.644 W -Polygon 1 8827.50 4588.57 -1077.21 5954380.00 695824.99 70 16 46.657 N 148 24 55.644 W -Polygon 2 8827.50 4705.08 -1324.26 5954490.00 695574.99 70 16 47.802 N 148 25 2.839 W -Polygon 3 8827.50 4588.57 -1077.21 5954380.00 695824.99 70 16 46.657 N 148 24 55.644 W 05-236 Fault 9 8827.50 5384.20 -1471.54 5955165.00 695409.99 70 16 54.481 N 148 25 7.133 W -Polygon 1 8827.50 5384.20 -1471.54 5955165.00 695409.99 70 16 54.481 N 148 25 7.133 W -Polygon 2 8827.50 5413.09 99.84 5955235.00 696979.99 70 16 54.767 N 148 24 21.363 W -Polygon 3 8827.50 5384.20 -1471.54 5955165.00 695409.99 70 16 54.481 N 148 25 7.133 W S err -Sun P Y BP Planning Report Compaay: BP Amoco Date: 4/10/2008 Time: 11:17:42 Page: 3 Field: Prudhoe Bay Co-ordinate(NE) Reference: We11: 05-23, True North Site: PB DS 05 Vertical (TVD) Reference: . 05-236 Plan 62.5 Well: -05-23 Section (VS) Reference: Well (O:OON,O.OOE,344:41Azi) Wellpath: Plan 05-23B Survey Calculation Method:. Minimum Curvature Db: Oracle Targets Map Map <~. Latitude ----> <- Longitude --> Name Description TV D +N/-S +E/-W Northing EasHng Deg Min Sec Deg. Min Sec Dip. Dir. ft ft ft ft ft 05-236 Fault 6 8842 .50 4885.10 206.07 5954710.00 697099.99 70 16 49.574 N 148 24 18.269 W -Polygon 1 8842 .50 4885.10 206.07 5954710.00 697099.99 70 16 49.574 N 148 24 18.269 W -Polygon 2 8842 .50 5353.95 448.43 5955185.00 697329.99 70 16 54.185 N 148 24 11.210 W -Polygon 3 8842 .50 4885.10 206.07 5954710.00 697099.99 70 16 49.574 N 148 24 18.269 W 05-236 Fault 7 8842 .50 4586.79 -627.07 5954390.00 696274.99 70 16 46.640 N 148 24 42.534 W -Polygon 1 8842 .50 4586.79 -627.07 5954390.00 696274.99 70 16 46.640 N 148 24 42.534 W -Polygon 2 8842 .50 4507.18 -834.24 5954305.00 696069.99 70 16 45.857 N 148 24 48.567 W -Polygon 3 8842 .50 4586.79 -627.07 5954390.00 696274.99 70 16 46.640 N 148 24 42.534 W Plan Section Information MD Incl Azim TVD +N/-S +E/-W DLS Build Turn TFO Target ft deg deg ft ft ft deg/100ft deg/100ft deg/100ft deg 3170.00 1.30 183.98 3169.55 -35.59 8.16 0.00 0.00 0.00 0.00 3190.00 3.25 223.69 3189.53 -36.23 7.75 12.00 9.75 198.53 60.00 3290.00 6.29 257.13 3289.19 -39.51 0.44 4.00 3.04 33.45 60.00 4344.61 41.17 352.90 4254.25 307.92 -103.58 4.00 3.31 9.08 102.75 8563.86 41.17 352.90 7430.34 3064.09 -447.12 0.00 0.00 0.00 0.00 9176.72 16.80 358.90 7962.50 3357.30 -474.19 4.00 -3.98 0.98 175.82 05-23B T1 9177.00 16.79 358.90 7962.78 3357.38 -474.19 4.00 -4.00 0.00 -180.00 9557.97 16.79 358.90 8327.50 3467.40 -476.31 0.00 0.00 0.00 0.00 05-23B T2 9577.94 16.79 358.90 8346.62 3473.16 -476.42 0.00 0.00 0.00 0.00 9837.81 16.79 358.90 8595.42 3548.21 -477.86 0.00 0.00 0.00 0.00 10189.19 90.00 13.76 8791.50 3806.29 -430.30 21.00 20.84 4.23 15.49 10193.32 90.00 13.76 8791.50 3810.30 -429.32 0.00 0.00 0.00 0.00 05-23 T3 Rev 3 10378.29 90.00 13.76 8791.50 3989.97 -385.33 0.00 0.00 0.00 0.00 10406.22 88.34 10.84 8791.90 4017.25 -379.38 12.00 -5.93 -10.43 -119.64 10772.70 88.34 10.84 8802.50 4377.04 -310.47 0.00 0.00 0.00 0.00 05-23 T5 11283.01 91.53 309.68 8803.12 4834.83 -474.73 12.00 0.62 -11.99 -87.34 11334.37 91.53 309.68 8801.74 4867.60 -514.24 0.00 0.00 0.00 0.00 11415.77 90.21 300.00 8800.50 4914.05 -580.97 12.00 -1.62 -11.89 -97.66 PM T2 Rev 1 11677.49 90.21 268.59 8799.51 4977.87 -831.41 12.00 0.00 -12.00 -89.95 12231.28 90.21 268.59 8797.50 4964.29 -1385.04 0.00 0.00 0.00 0.00 05-23 T6 Rev 1 Survey MD Incl Azim TVD Sys TVD VS N/S E/W DLS MapN MapE TooUGo ft deg deg ft ft ft ft ft deg/100ft ft ft 3170.00 1.30 183.98 3169.55 3107.05 -36.48 -35.59 8.16 0.00 5949786.08 697030.95 10 3/4" 3175.00 1.69 201.93 3174.54 3112.04 -36.59 -35.72 8.13 12.00 5949785.96 697030.92 MWD+IFR 3190.00 3.25 223.69 3189.53 3127.03 -36.98 -36.23 7.75 12.00 5949785.44 697030.56 Start Dir 4° 1 3200.00 3.47 229.42 3199.51 3137.01 -37.25 -36.63 7.32 4.00 5949785.02 697030.14 MWD+IFR 3290.00 6.29 257.13 3289.19 3226.69 -38.17 -39.51 0.44 4.00 5949781.97 697023.34 MWD+IFR 3300.00 6.22 260.74 3299.13 3236.63 -38.09 -39.72 -0.62 4.00 5949781.73 697022:28 MWD+IFR 3400.00 6.83 296.12 3398.52 3336.02 -33.53 -37.97 -11.31 4.00 5949783.20 697011.55 MWD+IFR 3500.00 9.30 318.94 3497.55 3435.05 -22.27 -29.25 -21.97 4.00 5949791.64 697000.67 MWD+IFR 3600.00 12.58 331.16 3595.73 3533.23 x.36 -13.61 -32.53 4.00 5949807.00 696989.70 MWD+IFR 3700.00 16.19 338.22 3692.59 3630.09 20.11 8.89 -42.96 4.00 5949829.21 696978.68 MWD+IFR 3800.00 19.94 342.72 3787.65 3725.15 51.02 38.12 -53.21 4.00 5949858.16 696967.68 MWD+IFR 3846.92 21.73 344.30 3831.50 3769.00 67.70 54.12 -57.93 4.00 5949874.03 696962.53 SV2 3900.00 23:77 345.83 3880.45 3817.95 88.22 73.95 -63.21 4.00 5949893.72 696956.74 MWD+IFR 4000.00 27.64 348.11 3970.54 3908.04 131.53 116.21 -72.93 4.00 5949935.70 696945.92 MWD+IFR 4100.00 31.55 349.87 4057.47 3994.97 180.74 164.68 -82.31 4.00 5949983.91 696935.27 MWD+IFR 4200.00 35.47 351.28 4140.84 4078.34 235.62 219.14 -91.32 4.00 5950038.11 696924.85 MWD+IFR 4295.19 39.22 352.39 4216.50 4154.00 292.86 276.29 -99.49 4.00 5950095.02 696915.18 SV1 4300.00 39.41 352.44 4220.22 4157.72 295.88 279.31 -99.90 4.00 5950098.03 696914.69 MWD+IFR 4344.61 41.17 352.90 4254.25 4191.75 324.43 307.92 -103.58. 4.00 5950126.54 696910.27 End Dir gent • Sperry-Sun BP Planning Report Company: BP Amoco Date: 4/10/2008 Timer 1.1:17:42 Page: 4 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: 05-23, True North Site:. PB DS 05 Vertical (TVl)) Reference: 05-238 Plan 62.5 Well: 05-23 Section(VS)Reference: Well {O.OON,O.OOE,344.41Azi) We0path: Plan 05-23B Survey Calculation Method: Minimum. Curvature: Db: Oracle Survey MD Incl Azim TVD Sys TVD VS N/S E/W ' DLS MapN MapE TooUCo ft deg deg ft ft ft ft ft deg/100ft ft ft 4400.00 41.17 352.90 4295.94 4233.44 360.49 344.10 -108.09 0.00 5950162.58 696904.81 MWD+IFR 4500.00 41.17 352.90 4371.22 4308.72 425.60 409.42 -116.23 0.00 5950227.67 696894.96 MWD+IFR 4600.00 41.17 352.90 4446.50 4384.00 490.71 474.75 -124.37 0.00 5950292.75 696885.11 MWD+IFR 4700.00 41.17 352.90 4521.77 4459.27 555.81 540.07 -132.51 0.00 5950357.84 696875.27 MWD+IFR 4800.00 41.17 352.90 4597.05 4534.55 620.92 605.39 -140.65 0.00 5950422.92 696865.42 MWD+IFR 4900.00 41.17 352.90 4672.32 4609.82 686.03 670.72 -148.80 0.00 5950488.01 696855.57 MWD+IFR 5000.00 41.17 352.90 4747.60 4685.10 751.14 736.04 -156.94 0.00 5950553.09 696845.72 MWD+IFR 5037.06 41.17 352.90 4775.50 4713.00 775.27 760.25 -159.96 0.00 5950577.21 696842.07 UG4 5100.00 41.17 352.90 4822.88 4760.38 816.25 801.37 -165.08 0.00 5950618.18 696835.87 MWD+IFR 5193.82 41.17 352.90 4893.50 4831.00 877.33 862.65 -172.72 0.00 5950679.24 696826.63 UG3 5200.00 41.17 352.90 4898.15 4835.65 881.36 866.69 -173.22 0.00 5950683.26 696826.02 MWD+IFR 5300.00 41.17 352.90 4973.43 4910.93 946.46 932.01 -181.37 0.00 5950748.35 696816.17 MWD+IFR 5400.00 41.17 352.90 5048.71 4986.21 1011.57 997.34 -189.51 0.00 5950813.43 696806.33 MWD+IFR 5500.00 41.17 352.90 5123.98 5061.48 1076.68 1062.66 -197.65 0.00 5950878.51 696796.48 MWD+IFR 5600.00 41.17 352.90 5199.26 5136.76 1141.79 1127.98 -205.79 0.00 5950943.60 696786.63 MWD+IFR 5700.00 41.17 352.90 5274.53 5212.03 1206.90 1193.31 -213.94 0.00 5951008.68 696776.78 MWD+IFR 5800.00 41.17 352.90 5349.81 5287.31 1272.00 1258.63 -222.08 0.00 5951073.77 696766.93 MWD+IFR 5900.00 41.17 352.90 5425.09 5362.59 1337.11 1323.96 -230.22 0.00 5951138.85 696757.08 MWD+IFR 5969.63 41.17 352.90 5477.50 5415.00 1382.45 1369.44 -235.89 0.00 5951184.17 696750.22 UG1 6000.00 41.17 352.90 5500.36 5437.86 1402.22 1389.28 -238.36 0.00 5951203.94 696747.23 MWD+IFR 6100.00 41.17 352.90 5575.64 5513.14 1467.33 1454.60 -246.50 0.00 5951269.02 696737.38 MWD+IFR 6200.00 41.17 352.90 5650.92 5588.42 1532.44 1519.93 -254.65 0.00 5951334.11 696727.54 MWD+IFR 6300.00 41.17 352.90 5726.19 5663.69 1597.55 1585.25 -262.79 0.00 5951399.19 696717.69 MWD+IFR 6400.00 41.17 352.90 5801.47 5738.97 1662.65 1650.57 -270.93 0.00 5951464.28 696707.84 MWD+IFR 6500.00 41.17 352.90 5876.74 5814.24 1727.76 1715.90 -279.07 0.00 5951529.36 696697.99 MWD+IFR 6600.00 41.17 352.90 5952.02 5889.52 1792.87 1781.22 -287.22 0.00 5951594.45 696688.14 MWD+IFR 6700.00 41.17 352.90 6027.30 5964.80 1857.98 1846.55 -295.36 0.00 5951659.53 696678.29 MWD+IFR 6785.29 41.17 352.90 6091.50 6029.00 1913.51 1902.26 -302.30 0.00 5951715.04 696669.89 WS2 6800.00 41.17 352.90 6102.57 6040.07 1923.09 1911.87 -303.50 0.00 5951724.61 696668.44 MWD+IFR 6900.00 41.17 352.90 6177.85 6115.35 1988.20 1977.19 -311.64 0.00 5951789.70 696658.60 MWD+IFR 7000.00 41.17 352.90 6253.13 6190.63 2053.30 2042.52 -319.79 0.00 5951854.78 696648.75 MWD+IFR 7060.28 41:17 352.90 6298.50 6236.00 2092.55 2081.89 -324.69 0.00 5951894.02 696642.81 WS1 7100.00 41.17 352.90 6328.40 6265.90 2118.41 2107.84 -327.93 0.00 5951919.87 696638.90 MWD+IFR 7200.00 41.17 352.90 6403.68 6341.18 2183.52 2173.16 -336.07 0.00 5951984.95 696629.05 MWD+IFR 7300.00 41.17 352.90 6478.95 6416.45 2248.63 2238.49 -344.21 0.00 5952050.04 696619.20 MWD+IFR 7392.39 41.17 352.90 6548.50 6486.00 2308.78 2298.84 -351.73 0.00 5952110.17 696610.10 CM3 7400.00 41.17 352.90 6554.23 6491.73 2313.74 2303.81 -352.35 0.00 5952115.12 696609.35 MWD+IFR 7500.00 41.17 352.90 6629.51 6567.01 2378.85 2369.14 -360.50 0.00 5952180.21 696599.50 MWD+IFR 7600.00 41.17 352.90 6704.78 6642.28 2443.95 2434.46 -368.64 0.00 5952245.29 696589.65 MWD+IFR 7700.00 41.17 352:90 6780.06 6717.56 2509.06 2499.78 -376.78 0.00 5952310.38 696579.81 MWD+IFR 7800.00 41.17 352.90 6855.34 6792.84 2574.17 2565.11 -384.92 0.00 5952375.46 696569.96 MWD+IFR 7900.00 41.17 352.90 6930.61 6868.11 2639.28 2630.43 -393.07 0.00 5952440.55 696560.11 MWD+IFR 7955.65 41.17 352.90 6972.50 6910.00 2675.51 2666.78 -397.60 0.00 5952476.76 696554.63 CM2 8000.00 41.17 352.90 7005.89 6943.39 2704.39 2695.75 -401.21 0.00 5952505.63 696550.26 MWD+IFR 8100.00 41.17 352.90 7081.16 7018.66 2769.50 2761.08 -409.35 0.00 5952570.71 696540.41 MWD+IFR 8200.00 41.17 352.90 7156.44 7093.94 2834.60 2826.40 -417.49 0.00 5952635.80 696530.56 MWD+IFR 8300.00 41.17 352.90 7231.72 7169.22 2899.71 2891.73 -425.63 0.00 5952700.88 696520.71 MWD+IFR 8400.00 41.17 352.90 7306.99 7244.49 2964.82 2957.05 -433.78 0.00 5952765.97 696510.87 MWD+IFR 8473.74 41.17 352.90 7362.50 7300.00 3012.83 3005.22 -439.78 0.00 5952813.96 696503.60 05-236 Fa I 8500.00 41.17. 352.90 7382.27 7319.77 3029.93 3022.37 -441.92 0.00 5952831.05 696501.02 MWD+IFR 8563.86 41.17 352.90 7430:34 7367.84 3071.51 3064.09 -447.12 0.00 5952872.62 696494.73 Start Dir 4° 1 8600.00 39.73 353.06 7457.84 7395.34 3094.69 3087.36 -449.99 4.00 5952895.80 696491.25 MWD+IFR ent S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 1 S S • Sperry-Sun BP Planning Report Company: BP Amoco 'Date: 4!10/2008 Time: 11:17:42 Page: 5 Field: Prudhoe Bay Co-ordinate(NE) Reference: Welt: 05-23, True North Site: PB DS 05' Vertical (TVD) Reference: 05-238 Plan 62.5 Well: 05-23 Section (VS) Reference: Well (O.OON,O.OOE,344.41Azi) Wellpath: Plan 05-23B Survey Calculation Method: Minimum Curvature Dh: Oracle Survey MD Inc! Azim TVD ft deg deg ft 8700.00 35.74 353.57 7536.91 8800.00 31.76 354.20 7620.04 8830.91 30.52 354.42 7646.50 8900.00 27.77 354.98 7706.83 9000. 00 23 .80 356.00 7796.86 9006. 16 23 .55 356.07 7802.50 9100. 00 19 .83 357.40 7889.68 9176. 72 16 .80 358.90 7962.50 9177. 00 16 .79 358.90 7962.78 9192. 38 16 .79 358.90 7977.50 9200. 00 16 .79 358.90 7984.79 9213. 27 16 .79 358.90 7997.50 9300. 00 16 .79 358.90 8080.53 9322. 95 16 .79 358.90 8102.50 9376. 22 16 .79 358.90 8153.50 9400. 00 16 .79 358.90 8176.27 9472. 32 16 .79 358.90 8245.50 9500. 00 16 .79 358.90 8272.00 9519. 32 16 .79 358.90 8290.50 9557. 97 16 .79 358.90 8327.50 9573. 63 16 .79 358.90 8342.50 9577. 94 16 .79 358.90 8346.62 9600. 00 16 .79 358.90 8367.74 9700. 00 16 .79 358.90 8463.48 9728. 22 16 .79 358.90 8490.50 9791. 94 16 .79 358.90 8551.50 9800. 00 16 .79 358.90 8559.22 9837. 81 16 .79 358.90 8595.42 9850. 00 19 .27 0.97 8607.01 9866. 59 22 .67 3.08 8622.50 9875. 00 24 .40 3.94 8630.21 9900. 00 29 .57 5.92 8652.48 9925. 00 34 .77 7.36 8673.63 9948. 71 39 .71 8.41 8692.50 9950. 00 39 .98 8.46 8693.49 9975. 00 45 .19 9.35 8711.89 10000. 00 50 .41 10.09 8728.68 10015. 98 53 .75 10.51 8738.50 10025. 00 55 .64 10.72 8743.71 10050. 00 60 .87 11.29 8756.86 10075. 00 66 .10 11.79 8768.02 10100. 00 71 .33 12.26 8777.10 10101. 27 71 .60 12.28 8777.50 10125. 00 76 .56 12.70 8784.01 10150. 00 81 .80 13.12 8788.70 10175. 00 87 .03 13.53 8791.13 10189. 19 90 .00 13.76 8791.50 10193. 32 90 .00 13.76 8791.50 10200. 00 90 .00 13.76 8791.50 10300. 00 90 .00 13.76 8791.50 10378. 29 90 .00 13.76 8791.50 10400. 00 88 .71 11.49 8791.74 10406. 22 88 .34 10.84 8791.90 Sys TVD ft 7474.41 7557.54 7584.00 7644.33 7734.36 7740.00 7827.18 7900.00 7900.28 7915.00 7922.29 7935.00 8018.03 8040.00 8091.00 8113.77 8183.00 8209.50 8228.00 8265.00 8280.00 8284.12 8305.24 8400.98 8428.00 8489.00 8496.72 8532.92 8544.51 8560.00 8567.71 8589.98 8611.13 8630.00 8630.99 8649.39 8666.18 8676.00 8681.21 8694.36 8705.52 8714.60 8715.00 8721.51 8726.20 8728.63 8729.00 8729.00 8729.00 8729.00 8729.00 8729.24 8729.40 VS N/S ft ft 3155.14 3148.13 3209.93 3203.35 3225.68 3219.26 3258.78 3252.76 3301.47 3296.12 3303.89 3298.59 3337.78 3333.21 3361.20 3357.30 3361.28 3357.38 3365.58 3361.82 3367.71 3364.02 3371.42 3367.85 3395.68 3392.90 3402.09 3399.53 3416.99 3414.91 3423.64 3421.78 3443.87 3442.66 3451.61 3450.66 3457.01 3456.24 3467.82 3467.40 3472.20 3471.92 3473.40 3473.16 3479.57 3479.53 3507.54 3508.41 3515.43 3516.56 3533.25 3534.96 3535.50 3537.29 3546.08 3548.21 3549.71 3551.98 3555.36 3557.91 3558.54 3561.26 3569.15 3572.56 3581.46 3585.78 3594.61 3599.98 3595.37 3600.80 3610.75 3617.50 3627.49 3635.75 3638.83 3648.15 3645.43 3655.39 3664.43 3676.25 3684.33 3698.16 3704.97 3720.93 3706.03 3722.11 3726.16 3744.38 3747.73 3768.31 3769.50 3792.51 3781.88 3806.29 3785.47 3810.30 3791.30 3816.79 3878.46 3913.93 3946.71 3989.97 3965.83 4011.15 3971.39 4017.25 E/W I)LS MapN ft deg/100ft ' ft -457.12 4.00 5952956.36 -463.05 4.00 5953011.41 -464.64 4.00 5953027.27 -467.75 4.00 5953060.68 -471.20 4.00 5953103.92 -471.38 4.00 5953106.38 -473.38 4.00 5953140.94 -474.19 4.00 5953165.00 -474.19 4.00 5953165.08 -474.28 0.00 5953169.52 -474.32 0.00 5953171.72 -474.39 0.00 5953175.55 -474.87 0.00 5953200.57 -475.00 0.00 5953207.19 X75.30 0.00 5953222.56 -475.43 0.00 5953229.42 -475.83 0.00 5953250.29 -475.99 0.00 5953258.27 -476.09 0.00 5953263.85 -476.31 0.00 5953275.00 -476.39 0.00 5953279.52 -476.42 0.00 5953280.76 -476.54 0.00 5953287.13 -477.10 0.00 5953315.98 -477.25 0.00 5953324.12 -477.61 0.00 5953342.51 -477.65 0.00 5953344.83 -477.86 0.00 5953355.74 -477.86 21.00 5953359.51 X77.65 21.00 5953365.45 -477.44 21.00 5953368.80 -476.45 21.00 5953380.12 -474.90 21.00 5953393.37 -472.92 21.00 5953407.62 -472.80 21.00 5953408.44 -470.18 21.00 5953425.21 -467.05 21.00 5953443.53 -464.79 21.00 5953455.98 -463.44 21.00 5953463.25 -459.38 21.00 5953484.21 -454.90 21.00 5953506.23 -450.05 21.00 5953529.12 -449.79 21.00 5953530.31 -444.86 21.00 5953552.70 -439.37 21.00 5953576.76 -433.64 21.00 5953601.10 -430.30 21.00 5953614.96 -429.32 0.00 5953619.00 -427.73 0.00 5953625.53 -403.95 0.00 5953723.24 -385.33 0.00 5953799.75 -380.58 12.00 5953821.04 -379.38 12.00 5953827.17 MapE TooUCo e ft 696482.53 MWD+IFR S 696475.16 MWD+IFR S 696473.15 CM1 696469.16 MWD+IFR S 696464.58 MWD+IFR S 696464.34 05-238 Fa 12 696461.43 MWD+IFR S 696460.00 05-238 T1 696459.99 MWD+IFR S 696459.79 THRZ 696459.69 MWD+IFR S 696459.52 05-23B Fa 13 696458.38 MWD+IFR S 696458.08 05-23B Fa 14 696457.38 TJB/LCU 696457.07 MWD+IFR S 696456.12 7" 696455.76 MWD+IFR S 696455.50 TSHU 696455.00 05-23B T2 696454.79 TSAD 696454.73 MWD+IFR S 696454.44 MWD+IFR S 696453.13 MWD+IFR S 696452.76 TCGL 696451.93 BCGL 696451.82 MWD+IFR S 696451.33 Start Dir 21 ° 696451.23 MWD+IFR S 696451.29 23S6 696451.41 MWD+IFR S 696452.10 MWD+IFR S 696453.31 MWD+IFR S 696454.91 21TS 696455.01 MWD+IFR S 696457.20 MWD+IFR S 696459.85 MWD+IFR S 696461.78 TZ1 B 696462.94 MWD+IFR S 696466.45 MWD+IFR S 696470.35 MWD+IFR S 696474.61 MWD+IFR S 696474.83 TDF 696479.18 MWD+IFR S 696484.04 MWD+IFR S 696489.14 MWD+IFR S 696492.12 End Dir : 1 8 696492.99 05-23 T3 3 696494.41 MWD+IFR S 696515.64 MWD+IFR S 696532.26 Start Dir 1 ° 696536.45 MWD+IFR S 696537.50 End Dir : 1 0 ,' Sperry-Sun BP Planning Report Company: BP Amoco Date: 4/10/2008" Time: 11;17:42 Page: 6 Field: Prudhoe Bay Co-ordinate(NE) Reference:. Well; 05-23, True North Site: PB DS 05 Vertical (TVD) Reference:. ' 05-23B Plan 62.5 Well: 05-23 Section (VS) Reference: Well (O.OON,O.OOE,344.41Azi) Wellpath Pla n 05-23B Survey Calculation Method: Minimum Curvature Dbc Orate Survey MD Incl Azim TVD Sys TVD VS N/S E/W DLS MapN MapE TooUCo ft deg deg ft ft ft ft ft deg/100ft ft ft 10500.00 88.34 10.84 8794.62 8732.12 4055.32 4109.32 -361.74 0.00 5953919.66 696552.71 MWD+IFR 10600.00 88.34 10.84 8797.51 8735.01 4144.83 4207.49 -342.94 0.00 5954018.29 696568.94 MWD+IFR 10700.00 88.34 10.84 8800.40 8737.90 4234.34 4305.67 -324.14 0.00 5954116.92 696585.17 MWD+IFR 10703.53 88.34 10.84 8800.50 8738.00 4237.50 4309.13 -323.47 0.00 5954120.40 696585.74 BSAD 10772.70 88.34 10.84 8802.50 8740.00 4299.41 4377.04 -310.47 0.00 5954188.62 696596.96 05-23 T5 10775.00 88.36 10.57 8802.57 8740.07 4301.47 4379.30 -310.04 12.00 5954190.89 696597.33 MWD+IFR 10800.00 88.50 7.57 8803.25 8740.75 4324.18 4403.97 -306.10 12.00 5954215.66 696600.62 MWD+IFR 10825.00 88.64 4.57 8803.88 8741.38 4347.40 4428.82 -303.46 12.00 5954240.57 696602.61 MWD+-FR 10850.00 88.79 1.58 8804.44 8741.94 4371.08 4453.78 -302.12 12.00 5954265.55 696603.30 MWD+IFR 10875.00 88.95 358.58 8804.93 8742.43 4395.14 4478.77 -302.08 12.00 5954290.53 696602.68 MWD+IFR 10900.00 89.10 355.58 8805.35 8742.85 4419.53 4503.73 -303.36 12.00 5954315.45 696600.75 MWD+IFR 10925.00 89.26 352.59 8805.71 8743.21 4444.16 4528.59 -305.93 12.00 5954340.23 696597.53 MWD+IFR 10950.00 89.42 349.59 8806.00 8743.50 4468.99 4553.29 -309.81 12.00 5954364.81 696593.01 MWD+IFR 10975.00 89.58 346.59 8806.22 8743.72 4493.94 4577.74 -314.96 12.00 5954389.13 696587.22 MWD+IFR 11000.00 89.75 343.60 8806.36 8743.86 4518.93 4601.90 -321.39 12.00 5954413.10 696580.16 MWD+IFR 11025.00 89.91 340.60 8806.44 8743.94 4543.91 4625.69 -329.08 12.00 5954436.68 696571.85 MWD+IFR 11050.00 90.07 337.61 8806.44 8743.94 4568.80 4649.04 -337.99 12.00 5954459.79 696562.33 MWD+IFR 11075.00 90.24 334.61 8806.38 8743.88 4593.53 4671.90 -348.11 12.00 5954482.37 696551.61 MWD+IFR 11100.00 90.40 331.62 8806.24 8743.74 4618.05 4694.19 -359.42 12.00 5954504.36 696539.73 MWD+IFR 11125.00 90.56 328.62 8806.03 8743.53 4642.27 4715.86 -371.87 12.00 5954525.70 696526.72 MWD+IFR 11150.00 90.72 325.62 8805.75 8743.25 4666.13 4736.86 -385.44 12.00 5954546.33 696512.60 MWD+IFR 11175.00 90.88 322.63 8805.40 8742.90 4689.58 4757.11 -400.09 12.00 5954566.19 696497.43 MWD+IFR 11200.00 91.04 319.63 8804.98 8742.48 4712.54 4776.57 -415.77 12.00 5954585.23 696481.24 MWD+IFR 11225.00 91.19 316.64 8804.50 8742.00 4734.95 4795.18 -432.45 12.00 5954603.40 696464.08 MWD+IFR 11250.00 91.34 313.64 8803.94 8741.44 4756.75 4812.89 -450.08 12.00 5954620.65 696446.00 MWD+IFR 11275.00 91.49 310.64 8803.33 8740.83 4777.88 4829.66 -468.61 12.00 5954636.92 696427.04 MWD+IFR 11283.01 91.53 309.68 8803.12 8740.62 4784.50 4834.83 -474.73 12.00 5954641.92 696420.79 End Dir : 1 1 11300.00 91.53 309.68 8802.66 8740.16 4798.46 4845.67 -487.80 0.00 5954652.42 696407.44 MWD+IFR 11334.37 91.53 309.68 8801.74 8739.24 4826.69 4867.60 -514.24 0.00 5954673.66 696380.43 Start Dir 1 ° 11350.00 91.28 307.82 8801.36 8738.86 4839.39 4877.39 -526.43 12.00 5954683.12 696367.99 MWD+IFR 11375.00 90.88 304.85 8800.89 8738.39 4859.07 4892.20 -546.56 12.00 5954697.39 696347.48 MWD+IFR 11400.00 90.47 301.88 8800.59 8738.09 4877.92 4905.94 -567.44 12.00 5954710.59 696326.25 MWD+IFR 11415.77 90.21 300.00 8800.50 8738.00 4889.36 4914.05 -580.97 12.00 5954718.34 696312.52 PM T2 Re 1 11425.00 90.21 298.89 8800.47 8737.97 4895.89 4918.59 -589.00 12.00 5954722.66 696304.37 MWD+IFR 11450.00 90.22 295.89 8800.37 8737.87 4912.94 4930.09 -611.19 12.00 5954733.58 696281.88 MWD+IFR 11475.00 90.22 292.89 8800.28 8737.78 4929.00 4940.41 -633.96 12.00 5954743.30 696258.85 MWD+IFR 11500.00 90.22 289.89 8800.18 8737.68 4944.04 4949.53 -657.24 12.00 5954751.80 696235.35 MWD+IFR 11525.00 90.22 286.89 8800.09 8737.59 4958.01 4957.41 -680.96 12.00 5954759.07 696211.43 MWD+IFR 11550.00 90.22 283.89 8799.99 8737.49 4970.88 4964.05 -705.06 12.00 5954765.07 696187.17 MWD+IFR 11575.00 90.22 280.89 8799.90 8737.40 4982.61 4969.41 -729.47 12.00 5954769.79 696162.62 MWD+IFR 11600.00 90.22 277.89 8799.80 8737.30 4993.17 4973.49 -754.13 12.00 5954773.23 696137.87 MWD+IFR 11625.00 90.21 274.89 8799.71 8737.21 5002.52 4976.28 -778.97 12.00 5954775.36 696112.96 MWD+IFR 11650.00 90.21 271.89 8799.61 8737.11 5010.66 4977.76 -803.93 12.00 5954776.18 696087.98 MWD+IFR 11677.49 90.21 268.59 8799.51 8737.01 5018.15 4977.87 -831.41 12.00 5954775.58 696060.51 End Dir : 1 1 11700.00 90.21 268.59 8799.43 8736.93 5023.67 4977.32 -853.92 0.00 5954774.44 696038.02 MWD+IFR 11800.00 90.21 268.59 8799.07 8736.57 5048.18 4974.87 -953.88 0.00 5954769.37 695938.16 MWD+IFR 11900.00 90.21 268.59 8798.70 8736.20 5072.69 4972.41 -1053.85 0.00 5954764.30 695838.29 MWD+IFR 12000.00 90.21 268.59 8798.34 8735.84 5097.20 4969.96 -1153.82 0.00 5954759.23 695738.43 MWD+IFR 12100.00 90.21 268.59 8797.98 8735.48 5121.71 4967.51 -1253.79 0.00 5954754.17 695638.56 MWD+IFR 12200.00 90.21 268.59 8797.61 8735.11 5146.21 4965.06 -1353.76 0.00 5954749.10 695538.70 MWD+IFR 12208.54 90.21 268.59 8797.58 8735.08 5148.31 4964.85 -1362.30 0.00 5954748.66 695530.17 41/2" 12231.28 90.21 268.59 8797.50 8735.00 5153.88 4964.29 -1385.04 0.00 5954747.51 695507.45 05-23 T6 ent S S S S S S S S S S S S S S S S S S S S S S S S 8 S S S S S S S S S S S S S S 7 S S S S S S Alaska Department of Natural Resources Land Administration System Page 1 of~ I ~.~ :~~ I_!-: ~~ -..-:1 ,. ,~;r...~r~_..:; I ~l~ts ~er;arciet's Search State Cabins ~ur~ R~~~r~aes a, _.... X215 CASE' t.1t'1"1 C File Type: ADL File Number: 28326_ ~ Printable Case File_Summary See Township, Range, Section and Acreage? ~` Yes ~° No New Search LAS Mehra ~ Case Abstract ~ Case Detail I Land Abstract File: ADL ?g326 ''~'t` Search for Status Plat Upd~~tes As of O~li? I ; BOOS Customer: 000]07377 BP EXPLORATION (ALASKA) INC PO BOX 1966] 2!900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Case Type: 7~~ OIL & GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Locution: DOG DIV OIL AND GAS Case Stazi.~s: 35 ISSUED Statzrs Date: 09/14/1965 Total Acres: 2491.000 Daze Initiated: 05/28/1965 f~ffice of Prirr-nary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 12/04/2006 Case Subtype: t~S NORTH SLOPE Last Transaction: AA-NRB ASSIGNMENT APPROVED Meridian: U 7ntirfrs~l7ij~: O11N Range: OISE Section: 29 ;S°~rcli<n~:4eres: (~~10 Search Plats M~~ri~?iczn: U Z~rnrn~, hi~~: O l 1 N Range: U I ~ i; S'c~c~ion: ~ 0 .S"~ ~ trnjr Acres: 60~ M~ri~liuu.~ ~~ 7utirrl.~hij~: Ol IN Range: (11 ~E S'ecliurt.~ 31 .ti't~c~~Infr Acres: 607 ~1~~~ricli~an: L3 ~nirtlshil~: 0 11N Range; 01;}=: ;~~ec~rr>n: ~ 2 S'c~c~[ron Acres: 640 Legal Descril~tiun 0~-28-1965 * * *SALE NOTICE LEGAL DESCRlPTION* * ~` C14-1~6 T11N-RISE-UM29,30,31,322~91.00 U- 3- 7 Erg Cage St~mr~° Last updated on 0412112008. http://www.dnr.state.ak.us/las/Case_Summary.cfm?FileType=ADL&FileNumber=28326&... 4/21 /2008 6050000 6000000 5950000 5900000 5850000 EPA Aquifer Exemption - 40 CFR 147.102 (b)(3) 400000 500000 600000 700000 800000 TRANSMITTAL LETTER CHECKLIST WELL NAME /~,8~r U.So~`S'.~ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: ~.E'l10~4~ ~y POOL: ~,G'!/D,~/06'~/~AJ~ ~ r 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(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - -_) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to perforate and produce /inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals 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 s~uc}, water well testing program. Rev: 1/11/2008 WELL PERII~R CHECKLIST Fisk! & Poet PRUDHOE BAY, PRUDHOE OIL •640150 Well Name: PRUDHOE BAYUNIT 05-238 Program DEV Well bore sag ^ PTD#:208061O Company BP EXPLORATION (ALAS ~ INC Initial ClasslType DEV i PEND GeoArea 890 Unit 11650 OnlOff Shore Qn __ Annular Disposal ^ Administration 1 Petmitfeeattached------------------------------------ _-_-.--NA--- ----------------------_-- 2 t.easenumberapproRflate-------- -- - ---- - --- -- -----Y~-- ---------- -- -- -- - - - ---- --- -- -- ---- - -- 1 3 Uniquewellnamesndnumber- - ------ ----- -- Yes - -- - - -- --- -- - ----- -- 4 Welllocaiedtn.a_definedpool-_--_______--_------------ ---------Yes-- -----P[udhoaBaYFieid/PtudhoeBayPooL-------------------------------------------- i 5 WelUocatedproperdistatHoeftomdrillingunitboundary--------------- -------Yes-- -------.-.-.-----.---------------------------------------------------- ~ 6 Well located properdistanoeftomatherwells------------------ ---------Yes-- -------------------------------------------------------------------- 7 SuffiCientaoreageavailableind_rillingrlnit_________---------- ---------Yes-- -----2560aores._---__--_____---__-_--_______-_------_____ -- 8 If deviated,is_wellboreplat-incladed_------------------------ ---------Yes-- ------------------------_ _-- 9 Qperstoronlyaffectedparq+--------- - - - --- ---------Yes-- ------- -- --- -- - -- ------ - -- -- - ---- 10 Operatorbas-approprlateband ntorce_--------------------_ __. -. --Yes-- -----QlanketBond#6164163.------------------------__------------------__ ~ 11 Petmitc~nbeiasuedwJtboutconsenraiignordar------------------- --------Yes-- -----------.----_ Appr Date 1 12 Perrn+tcanbeissuetawithoutadministrati~te_approYal---------------- ---------Yes-- ----------------------------------------------------------------------- ACS 4121/2008' 13 Canpermftbeapprovedbeforel5•daywait- -- - - -- ------ --Yes-- ------- --- -- - -------- --- --- -- --- -- 14 WfliUocatedwithinareaanda#rata,authorizedby-InjeGtion9tdet#(putlp#in.comments)(For- NA--- . -------------------------------------------------------------.------ 15 .Allwells-within 114_miie areaa# rev+ew identified (Fot service well only)_ _ _ _ _ _ _ _ _ _ _ _ _ NA _ _ _ _ _ _ _ _ _ .. _ _ X 16 PteproducedinJeCtor.duratiQnofprsproductionlessthan3months_(Forservicevreitonly)__NA__ _________________________________________________--___---------_-.____ 1, 17 _Plonconven,gas-conformal°AS31,05030(1~1.A),4.2.A•D)------------ --------- NA--- ------------------------------------------------------------ Englneering 18 Conducto[stringprovided----------------__._____---- ---_-_---NA--- --_--CoRduotorsetinDS 05.23(166.079.---______-_---_-_-___.__--_---_---_-- 19 Surface-casingprotectsall known USDWs____-_--_---------- ----------KA--- --_--Noaquifers,AIQ48,-conclusion5,__-_-------_-____-----_--_______.__--_--- 20 CMT-v°iadsquafe_tooitculateon-conduotor$surf-csg------------- ----------NA--- -----Surfaeacasingsetin05-23,----------_------------------------------------ ~ 21 -CMT-vol adequate to t~•in-long string to sr~rf csg - - - - - - - - - - - - - - - - - - - - - - - - - - - No_ - - _ - - _ _ New 7"wilt be_cemented above Cretas~eus sands.- - - _ _ _ _ _ _ - - - - - - - - - _ _ - _ _ _ _ _ _ . _ _ 22 CMT_wiliooverallknown-ptaductivehorizoris--------------------- ---------Yss-- --------------------------- -- ------------ ----------------- - ----------- 23 Casin®des~nsadequateforC,L6&_permafrost---------------- --_-__--Yes-- ----------------------------------------------------------------_ --- 24 Adequate Tankage or reserve pik - - - - - - - - - - - - - - - _ _ - - _ - _ - -Yes _ _ - _ _ _ _ Rig equipped with steel phs, No-reserve pit planned._Ail waste_to apRroved disposal wail(s), - - - - - - _ - - _ _ _ I25 If-a_re-dtrU,has_a10.403#Qrabandonmentt~eenapproved------------- ---------Yes-- -----308-130------------------------------------- 2ti Adequate weilbore separaUon_ptoposed - - - - - - - - - - - - - - - - - - - _ _ - _ _ Yes _ _ _ _ _ _ _ Proximity analysis perf_otmed, Close approaches identified,- DS 95.30 SI_and secured.- - _ - - - - - - - _ - - _ - 27 tfdivetterrequUed,doesRmestregulations---------------------- ---------NA_- --_--B4PStack willalreadY-~inplace,_---_---_--_________--__-_____-----_--_-- Appr Data I28 Drilling fluid- program schematic-& equip list adequate- - - - - - - - - - - - - - - - - - - - - - - - -Yes _ - - - _ - -Maximum expected fn[malion pressure 9,0 EMWin Cretaceous and_7.3 EMW in zone.- - _ - - - - _ - E M 4I23I2008 T 29 BOP>s,-do_theymeBtregulatron-------------.----------- ---------Yes-- -------MYV-~annedin&1l2"hole upte10.1ppgand8,5ppgJnzone.---------------------------- /~ ~ 30 BDP):.press rating appropriate; test to_(put prig in comments)- - - - - - - - - - - - - - - - - - - - Yes _ - _ _ - - _ MASP calculated-ai 241gpsi, 3500_pstBOP testplanned. - - _ - - - _ _ _ _ - - _ - - - - - ,, {'"'~ X31 Choke-manifold complieswlAPl_RP•63(-May64) - -- - ---------Yes-- ------- - - - ------ - - ------- -- - -- ------ - ~,32 _UYork~NlH9ocutwith9utoperat~onshutdown----------------_-- --------Yes-_ --.----------------------------------------------------- 33 is presence of H2S gas probab~_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Na_ - - - _ - _ -Minor-H2$-is reported ei DS 5.-Mud should preclude-H2S_on_rigv Rg hss sensors and alarms.- - _ - _ - _ - _ _ _ 34 Mechanical_conditionofweNswilhinAORverNied(F4tservJcewellonlya----- --------- NA-_ --_-----------------------------.--- Geology I35 Permitcanbeissuedwlohydrogerlsulfidemeasutes--- ---------- --------- N°-- - MaxH2Sievelon-Pad_is27ppm=-11111f00•----,------------------------------------ 36 Dste-Prasantedonp°tantial9vs>'pressurezones------------------ ---------Yes-- -------------------------------------------------------------- ---- Appr Date ;37 S®ismicanarysisofBhalkrwgas-zones- ------------ --- -- -- ----- NA ------ -- -- --- - --- ---- - ---- - - ------ ACS 4121/2008 38 Seabed condition surrey-f f offshare) - - - - - - - - - - - - - NA - - - - - ~ - - - - - - - - - - - - - - - - - 39 Contact namelphone#orweekly-pr'ogresstepgrts(exploratory onlYl-------- ---------Yes-- -----Ron_Phillips5645213_--------------------------------------------------_-- Geologic Commissioner, Engineering P lic Date: Co ' aioner: Dat® Co ' ner Date ~Z~~ 4-Z~4 ~08
